TextView.java revision 0500b3cfda5192efc09d6d4344b0c6c785c0a815
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.widget; 18 19import android.R; 20import android.content.ClipData; 21import android.content.ClipData.Item; 22import android.content.ClipboardManager; 23import android.content.Context; 24import android.content.Intent; 25import android.content.pm.PackageManager; 26import android.content.res.ColorStateList; 27import android.content.res.Resources; 28import android.content.res.TypedArray; 29import android.content.res.XmlResourceParser; 30import android.graphics.Canvas; 31import android.graphics.Color; 32import android.graphics.Paint; 33import android.graphics.Path; 34import android.graphics.Rect; 35import android.graphics.RectF; 36import android.graphics.Typeface; 37import android.graphics.drawable.Drawable; 38import android.inputmethodservice.ExtractEditText; 39import android.net.Uri; 40import android.os.Bundle; 41import android.os.Handler; 42import android.os.Message; 43import android.os.Parcel; 44import android.os.Parcelable; 45import android.os.SystemClock; 46import android.provider.Settings; 47import android.text.BoringLayout; 48import android.text.DynamicLayout; 49import android.text.Editable; 50import android.text.GetChars; 51import android.text.GraphicsOperations; 52import android.text.InputFilter; 53import android.text.InputType; 54import android.text.Layout; 55import android.text.ParcelableSpan; 56import android.text.Selection; 57import android.text.SpanWatcher; 58import android.text.Spannable; 59import android.text.SpannableString; 60import android.text.SpannableStringBuilder; 61import android.text.Spanned; 62import android.text.SpannedString; 63import android.text.StaticLayout; 64import android.text.TextDirectionHeuristic; 65import android.text.TextDirectionHeuristics; 66import android.text.TextPaint; 67import android.text.TextUtils; 68import android.text.TextUtils.TruncateAt; 69import android.text.TextWatcher; 70import android.text.method.AllCapsTransformationMethod; 71import android.text.method.ArrowKeyMovementMethod; 72import android.text.method.DateKeyListener; 73import android.text.method.DateTimeKeyListener; 74import android.text.method.DialerKeyListener; 75import android.text.method.DigitsKeyListener; 76import android.text.method.KeyListener; 77import android.text.method.LinkMovementMethod; 78import android.text.method.MetaKeyKeyListener; 79import android.text.method.MovementMethod; 80import android.text.method.PasswordTransformationMethod; 81import android.text.method.SingleLineTransformationMethod; 82import android.text.method.TextKeyListener; 83import android.text.method.TimeKeyListener; 84import android.text.method.TransformationMethod; 85import android.text.method.TransformationMethod2; 86import android.text.method.WordIterator; 87import android.text.style.ClickableSpan; 88import android.text.style.EasyEditSpan; 89import android.text.style.ParagraphStyle; 90import android.text.style.SpellCheckSpan; 91import android.text.style.SuggestionRangeSpan; 92import android.text.style.SuggestionSpan; 93import android.text.style.TextAppearanceSpan; 94import android.text.style.URLSpan; 95import android.text.style.UpdateAppearance; 96import android.text.util.Linkify; 97import android.util.AttributeSet; 98import android.util.DisplayMetrics; 99import android.util.FloatMath; 100import android.util.Log; 101import android.util.TypedValue; 102import android.view.ActionMode; 103import android.view.ActionMode.Callback; 104import android.view.ContextMenu; 105import android.view.DragEvent; 106import android.view.Gravity; 107import android.view.HapticFeedbackConstants; 108import android.view.KeyCharacterMap; 109import android.view.KeyEvent; 110import android.view.LayoutInflater; 111import android.view.Menu; 112import android.view.MenuItem; 113import android.view.MotionEvent; 114import android.view.View; 115import android.view.ViewConfiguration; 116import android.view.ViewDebug; 117import android.view.ViewGroup; 118import android.view.ViewGroup.LayoutParams; 119import android.view.ViewParent; 120import android.view.ViewRootImpl; 121import android.view.ViewTreeObserver; 122import android.view.WindowManager; 123import android.view.accessibility.AccessibilityEvent; 124import android.view.accessibility.AccessibilityManager; 125import android.view.accessibility.AccessibilityNodeInfo; 126import android.view.animation.AnimationUtils; 127import android.view.inputmethod.BaseInputConnection; 128import android.view.inputmethod.CompletionInfo; 129import android.view.inputmethod.CorrectionInfo; 130import android.view.inputmethod.EditorInfo; 131import android.view.inputmethod.ExtractedText; 132import android.view.inputmethod.ExtractedTextRequest; 133import android.view.inputmethod.InputConnection; 134import android.view.inputmethod.InputMethodManager; 135import android.view.inputmethod.InputMethodSubtype; 136import android.widget.AdapterView.OnItemClickListener; 137import android.widget.RemoteViews.RemoteView; 138 139import com.android.internal.util.FastMath; 140import com.android.internal.widget.EditableInputConnection; 141 142import org.xmlpull.v1.XmlPullParserException; 143 144import java.io.IOException; 145import java.lang.ref.WeakReference; 146import java.text.BreakIterator; 147import java.util.ArrayList; 148import java.util.Arrays; 149import java.util.Comparator; 150import java.util.HashMap; 151import java.util.Locale; 152 153/** 154 * Displays text to the user and optionally allows them to edit it. A TextView 155 * is a complete text editor, however the basic class is configured to not 156 * allow editing; see {@link EditText} for a subclass that configures the text 157 * view for editing. 158 * 159 * <p> 160 * <b>XML attributes</b> 161 * <p> 162 * See {@link android.R.styleable#TextView TextView Attributes}, 163 * {@link android.R.styleable#View View Attributes} 164 * 165 * @attr ref android.R.styleable#TextView_text 166 * @attr ref android.R.styleable#TextView_bufferType 167 * @attr ref android.R.styleable#TextView_hint 168 * @attr ref android.R.styleable#TextView_textColor 169 * @attr ref android.R.styleable#TextView_textColorHighlight 170 * @attr ref android.R.styleable#TextView_textColorHint 171 * @attr ref android.R.styleable#TextView_textAppearance 172 * @attr ref android.R.styleable#TextView_textColorLink 173 * @attr ref android.R.styleable#TextView_textSize 174 * @attr ref android.R.styleable#TextView_textScaleX 175 * @attr ref android.R.styleable#TextView_typeface 176 * @attr ref android.R.styleable#TextView_textStyle 177 * @attr ref android.R.styleable#TextView_cursorVisible 178 * @attr ref android.R.styleable#TextView_maxLines 179 * @attr ref android.R.styleable#TextView_maxHeight 180 * @attr ref android.R.styleable#TextView_lines 181 * @attr ref android.R.styleable#TextView_height 182 * @attr ref android.R.styleable#TextView_minLines 183 * @attr ref android.R.styleable#TextView_minHeight 184 * @attr ref android.R.styleable#TextView_maxEms 185 * @attr ref android.R.styleable#TextView_maxWidth 186 * @attr ref android.R.styleable#TextView_ems 187 * @attr ref android.R.styleable#TextView_width 188 * @attr ref android.R.styleable#TextView_minEms 189 * @attr ref android.R.styleable#TextView_minWidth 190 * @attr ref android.R.styleable#TextView_gravity 191 * @attr ref android.R.styleable#TextView_scrollHorizontally 192 * @attr ref android.R.styleable#TextView_password 193 * @attr ref android.R.styleable#TextView_singleLine 194 * @attr ref android.R.styleable#TextView_selectAllOnFocus 195 * @attr ref android.R.styleable#TextView_includeFontPadding 196 * @attr ref android.R.styleable#TextView_maxLength 197 * @attr ref android.R.styleable#TextView_shadowColor 198 * @attr ref android.R.styleable#TextView_shadowDx 199 * @attr ref android.R.styleable#TextView_shadowDy 200 * @attr ref android.R.styleable#TextView_shadowRadius 201 * @attr ref android.R.styleable#TextView_autoLink 202 * @attr ref android.R.styleable#TextView_linksClickable 203 * @attr ref android.R.styleable#TextView_numeric 204 * @attr ref android.R.styleable#TextView_digits 205 * @attr ref android.R.styleable#TextView_phoneNumber 206 * @attr ref android.R.styleable#TextView_inputMethod 207 * @attr ref android.R.styleable#TextView_capitalize 208 * @attr ref android.R.styleable#TextView_autoText 209 * @attr ref android.R.styleable#TextView_editable 210 * @attr ref android.R.styleable#TextView_freezesText 211 * @attr ref android.R.styleable#TextView_ellipsize 212 * @attr ref android.R.styleable#TextView_drawableTop 213 * @attr ref android.R.styleable#TextView_drawableBottom 214 * @attr ref android.R.styleable#TextView_drawableRight 215 * @attr ref android.R.styleable#TextView_drawableLeft 216 * @attr ref android.R.styleable#TextView_drawablePadding 217 * @attr ref android.R.styleable#TextView_lineSpacingExtra 218 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 219 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 220 * @attr ref android.R.styleable#TextView_inputType 221 * @attr ref android.R.styleable#TextView_imeOptions 222 * @attr ref android.R.styleable#TextView_privateImeOptions 223 * @attr ref android.R.styleable#TextView_imeActionLabel 224 * @attr ref android.R.styleable#TextView_imeActionId 225 * @attr ref android.R.styleable#TextView_editorExtras 226 */ 227@RemoteView 228public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 229 static final String LOG_TAG = "TextView"; 230 static final boolean DEBUG_EXTRACT = false; 231 232 private static final int PRIORITY = 100; 233 private int mCurrentAlpha = 255; 234 235 final int[] mTempCoords = new int[2]; 236 Rect mTempRect; 237 238 private ColorStateList mTextColor; 239 private int mCurTextColor; 240 private ColorStateList mHintTextColor; 241 private ColorStateList mLinkTextColor; 242 private int mCurHintTextColor; 243 private boolean mFreezesText; 244 private boolean mFrozenWithFocus; 245 private boolean mTemporaryDetach; 246 private boolean mDispatchTemporaryDetach; 247 248 private boolean mDiscardNextActionUp = false; 249 private boolean mIgnoreActionUpEvent = false; 250 251 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 252 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 253 254 private float mShadowRadius, mShadowDx, mShadowDy; 255 256 private static final int PREDRAW_NOT_REGISTERED = 0; 257 private static final int PREDRAW_PENDING = 1; 258 private static final int PREDRAW_DONE = 2; 259 private int mPreDrawState = PREDRAW_NOT_REGISTERED; 260 261 private TextUtils.TruncateAt mEllipsize = null; 262 263 // Enum for the "typeface" XML parameter. 264 // TODO: How can we get this from the XML instead of hardcoding it here? 265 private static final int SANS = 1; 266 private static final int SERIF = 2; 267 private static final int MONOSPACE = 3; 268 269 // Bitfield for the "numeric" XML parameter. 270 // TODO: How can we get this from the XML instead of hardcoding it here? 271 private static final int SIGNED = 2; 272 private static final int DECIMAL = 4; 273 274 static class Drawables { 275 final Rect mCompoundRect = new Rect(); 276 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight, 277 mDrawableStart, mDrawableEnd; 278 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight, 279 mDrawableSizeStart, mDrawableSizeEnd; 280 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight, 281 mDrawableHeightStart, mDrawableHeightEnd; 282 int mDrawablePadding; 283 } 284 private Drawables mDrawables; 285 286 private CharSequence mError; 287 private boolean mErrorWasChanged; 288 private ErrorPopup mPopup; 289 /** 290 * This flag is set if the TextView tries to display an error before it 291 * is attached to the window (so its position is still unknown). 292 * It causes the error to be shown later, when onAttachedToWindow() 293 * is called. 294 */ 295 private boolean mShowErrorAfterAttach; 296 297 private CharWrapper mCharWrapper = null; 298 299 private boolean mSelectionMoved = false; 300 private boolean mTouchFocusSelected = false; 301 302 private Marquee mMarquee; 303 private boolean mRestartMarquee; 304 305 private int mMarqueeRepeatLimit = 3; 306 307 static class InputContentType { 308 int imeOptions = EditorInfo.IME_NULL; 309 String privateImeOptions; 310 CharSequence imeActionLabel; 311 int imeActionId; 312 Bundle extras; 313 OnEditorActionListener onEditorActionListener; 314 boolean enterDown; 315 } 316 InputContentType mInputContentType; 317 318 static class InputMethodState { 319 Rect mCursorRectInWindow = new Rect(); 320 RectF mTmpRectF = new RectF(); 321 float[] mTmpOffset = new float[2]; 322 ExtractedTextRequest mExtracting; 323 final ExtractedText mTmpExtracted = new ExtractedText(); 324 int mBatchEditNesting; 325 boolean mCursorChanged; 326 boolean mSelectionModeChanged; 327 boolean mContentChanged; 328 int mChangedStart, mChangedEnd, mChangedDelta; 329 } 330 InputMethodState mInputMethodState; 331 332 private int mTextSelectHandleLeftRes; 333 private int mTextSelectHandleRightRes; 334 private int mTextSelectHandleRes; 335 336 private int mTextEditSuggestionItemLayout; 337 private SuggestionsPopupWindow mSuggestionsPopupWindow; 338 private SuggestionRangeSpan mSuggestionRangeSpan; 339 340 private int mCursorDrawableRes; 341 private final Drawable[] mCursorDrawable = new Drawable[2]; 342 private int mCursorCount; // Actual current number of used mCursorDrawable: 0, 1 or 2 343 344 private Drawable mSelectHandleLeft; 345 private Drawable mSelectHandleRight; 346 private Drawable mSelectHandleCenter; 347 348 // Global listener that detects changes in the global position of the TextView 349 private PositionListener mPositionListener; 350 351 private float mLastDownPositionX, mLastDownPositionY; 352 private Callback mCustomSelectionActionModeCallback; 353 354 private final int mSquaredTouchSlopDistance; 355 // Set when this TextView gained focus with some text selected. Will start selection mode. 356 private boolean mCreatedWithASelection = false; 357 358 private WordIterator mWordIterator; 359 360 private SpellChecker mSpellChecker; 361 362 private boolean mSoftInputShownOnFocus = true; 363 364 // The alignment to pass to Layout, or null if not resolved. 365 private Layout.Alignment mLayoutAlignment; 366 367 // The default value for mTextAlign. 368 private TextAlign mTextAlign = TextAlign.INHERIT; 369 370 private static enum TextAlign { 371 INHERIT, GRAVITY, TEXT_START, TEXT_END, CENTER, VIEW_START, VIEW_END; 372 } 373 374 private boolean mResolvedDrawables = false; 375 376 /** 377 * On some devices the fading edges add a performance penalty if used 378 * extensively in the same layout. This mode indicates how the marquee 379 * is currently being shown, if applicable. (mEllipsize will == MARQUEE) 380 */ 381 private int mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 382 383 /** 384 * When mMarqueeFadeMode is not MARQUEE_FADE_NORMAL, this stores 385 * the layout that should be used when the mode switches. 386 */ 387 private Layout mSavedMarqueeModeLayout; 388 389 /** 390 * Draw marquee text with fading edges as usual 391 */ 392 private static final int MARQUEE_FADE_NORMAL = 0; 393 394 /** 395 * Draw marquee text as ellipsize end while inactive instead of with the fade. 396 * (Useful for devices where the fade can be expensive if overdone) 397 */ 398 private static final int MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS = 1; 399 400 /** 401 * Draw marquee text with fading edges because it is currently active/animating. 402 */ 403 private static final int MARQUEE_FADE_SWITCH_SHOW_FADE = 2; 404 405 /* 406 * Kick-start the font cache for the zygote process (to pay the cost of 407 * initializing freetype for our default font only once). 408 */ 409 static { 410 Paint p = new Paint(); 411 p.setAntiAlias(true); 412 // We don't care about the result, just the side-effect of measuring. 413 p.measureText("H"); 414 } 415 416 /** 417 * Interface definition for a callback to be invoked when an action is 418 * performed on the editor. 419 */ 420 public interface OnEditorActionListener { 421 /** 422 * Called when an action is being performed. 423 * 424 * @param v The view that was clicked. 425 * @param actionId Identifier of the action. This will be either the 426 * identifier you supplied, or {@link EditorInfo#IME_NULL 427 * EditorInfo.IME_NULL} if being called due to the enter key 428 * being pressed. 429 * @param event If triggered by an enter key, this is the event; 430 * otherwise, this is null. 431 * @return Return true if you have consumed the action, else false. 432 */ 433 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 434 } 435 436 public TextView(Context context) { 437 this(context, null); 438 } 439 440 public TextView(Context context, 441 AttributeSet attrs) { 442 this(context, attrs, com.android.internal.R.attr.textViewStyle); 443 } 444 445 @SuppressWarnings("deprecation") 446 public TextView(Context context, 447 AttributeSet attrs, 448 int defStyle) { 449 super(context, attrs, defStyle); 450 mText = ""; 451 452 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 453 mTextPaint.density = getResources().getDisplayMetrics().density; 454 mTextPaint.setCompatibilityScaling( 455 getResources().getCompatibilityInfo().applicationScale); 456 457 // If we get the paint from the skin, we should set it to left, since 458 // the layout always wants it to be left. 459 // mTextPaint.setTextAlign(Paint.Align.LEFT); 460 461 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 462 mHighlightPaint.setCompatibilityScaling( 463 getResources().getCompatibilityInfo().applicationScale); 464 465 mMovement = getDefaultMovementMethod(); 466 mTransformation = null; 467 468 int textColorHighlight = 0; 469 ColorStateList textColor = null; 470 ColorStateList textColorHint = null; 471 ColorStateList textColorLink = null; 472 int textSize = 15; 473 int typefaceIndex = -1; 474 int styleIndex = -1; 475 boolean allCaps = false; 476 477 final Resources.Theme theme = context.getTheme(); 478 479 /* 480 * Look the appearance up without checking first if it exists because 481 * almost every TextView has one and it greatly simplifies the logic 482 * to be able to parse the appearance first and then let specific tags 483 * for this View override it. 484 */ 485 TypedArray a = theme.obtainStyledAttributes( 486 attrs, com.android.internal.R.styleable.TextViewAppearance, defStyle, 0); 487 TypedArray appearance = null; 488 int ap = a.getResourceId( 489 com.android.internal.R.styleable.TextViewAppearance_textAppearance, -1); 490 a.recycle(); 491 if (ap != -1) { 492 appearance = theme.obtainStyledAttributes( 493 ap, com.android.internal.R.styleable.TextAppearance); 494 } 495 if (appearance != null) { 496 int n = appearance.getIndexCount(); 497 for (int i = 0; i < n; i++) { 498 int attr = appearance.getIndex(i); 499 500 switch (attr) { 501 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 502 textColorHighlight = appearance.getColor(attr, textColorHighlight); 503 break; 504 505 case com.android.internal.R.styleable.TextAppearance_textColor: 506 textColor = appearance.getColorStateList(attr); 507 break; 508 509 case com.android.internal.R.styleable.TextAppearance_textColorHint: 510 textColorHint = appearance.getColorStateList(attr); 511 break; 512 513 case com.android.internal.R.styleable.TextAppearance_textColorLink: 514 textColorLink = appearance.getColorStateList(attr); 515 break; 516 517 case com.android.internal.R.styleable.TextAppearance_textSize: 518 textSize = appearance.getDimensionPixelSize(attr, textSize); 519 break; 520 521 case com.android.internal.R.styleable.TextAppearance_typeface: 522 typefaceIndex = appearance.getInt(attr, -1); 523 break; 524 525 case com.android.internal.R.styleable.TextAppearance_textStyle: 526 styleIndex = appearance.getInt(attr, -1); 527 break; 528 529 case com.android.internal.R.styleable.TextAppearance_textAllCaps: 530 allCaps = appearance.getBoolean(attr, false); 531 break; 532 } 533 } 534 535 appearance.recycle(); 536 } 537 538 boolean editable = getDefaultEditable(); 539 CharSequence inputMethod = null; 540 int numeric = 0; 541 CharSequence digits = null; 542 boolean phone = false; 543 boolean autotext = false; 544 int autocap = -1; 545 int buffertype = 0; 546 boolean selectallonfocus = false; 547 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 548 drawableBottom = null, drawableStart = null, drawableEnd = null; 549 int drawablePadding = 0; 550 int ellipsize = -1; 551 boolean singleLine = false; 552 int maxlength = -1; 553 CharSequence text = ""; 554 CharSequence hint = null; 555 int shadowcolor = 0; 556 float dx = 0, dy = 0, r = 0; 557 boolean password = false; 558 int inputType = EditorInfo.TYPE_NULL; 559 560 a = theme.obtainStyledAttributes( 561 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 562 563 int n = a.getIndexCount(); 564 for (int i = 0; i < n; i++) { 565 int attr = a.getIndex(i); 566 567 switch (attr) { 568 case com.android.internal.R.styleable.TextView_editable: 569 editable = a.getBoolean(attr, editable); 570 break; 571 572 case com.android.internal.R.styleable.TextView_inputMethod: 573 inputMethod = a.getText(attr); 574 break; 575 576 case com.android.internal.R.styleable.TextView_numeric: 577 numeric = a.getInt(attr, numeric); 578 break; 579 580 case com.android.internal.R.styleable.TextView_digits: 581 digits = a.getText(attr); 582 break; 583 584 case com.android.internal.R.styleable.TextView_phoneNumber: 585 phone = a.getBoolean(attr, phone); 586 break; 587 588 case com.android.internal.R.styleable.TextView_autoText: 589 autotext = a.getBoolean(attr, autotext); 590 break; 591 592 case com.android.internal.R.styleable.TextView_capitalize: 593 autocap = a.getInt(attr, autocap); 594 break; 595 596 case com.android.internal.R.styleable.TextView_bufferType: 597 buffertype = a.getInt(attr, buffertype); 598 break; 599 600 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 601 selectallonfocus = a.getBoolean(attr, selectallonfocus); 602 break; 603 604 case com.android.internal.R.styleable.TextView_autoLink: 605 mAutoLinkMask = a.getInt(attr, 0); 606 break; 607 608 case com.android.internal.R.styleable.TextView_linksClickable: 609 mLinksClickable = a.getBoolean(attr, true); 610 break; 611 612// TODO uncomment when this attribute is made public in the next release 613// also add TextView_showSoftInputOnFocus to the list of attributes above 614// case com.android.internal.R.styleable.TextView_showSoftInputOnFocus: 615// setShowSoftInputOnFocus(a.getBoolean(attr, true)); 616// break; 617 618 case com.android.internal.R.styleable.TextView_drawableLeft: 619 drawableLeft = a.getDrawable(attr); 620 break; 621 622 case com.android.internal.R.styleable.TextView_drawableTop: 623 drawableTop = a.getDrawable(attr); 624 break; 625 626 case com.android.internal.R.styleable.TextView_drawableRight: 627 drawableRight = a.getDrawable(attr); 628 break; 629 630 case com.android.internal.R.styleable.TextView_drawableBottom: 631 drawableBottom = a.getDrawable(attr); 632 break; 633 634 case com.android.internal.R.styleable.TextView_drawableStart: 635 drawableStart = a.getDrawable(attr); 636 break; 637 638 case com.android.internal.R.styleable.TextView_drawableEnd: 639 drawableEnd = a.getDrawable(attr); 640 break; 641 642 case com.android.internal.R.styleable.TextView_drawablePadding: 643 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 644 break; 645 646 case com.android.internal.R.styleable.TextView_maxLines: 647 setMaxLines(a.getInt(attr, -1)); 648 break; 649 650 case com.android.internal.R.styleable.TextView_maxHeight: 651 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 652 break; 653 654 case com.android.internal.R.styleable.TextView_lines: 655 setLines(a.getInt(attr, -1)); 656 break; 657 658 case com.android.internal.R.styleable.TextView_height: 659 setHeight(a.getDimensionPixelSize(attr, -1)); 660 break; 661 662 case com.android.internal.R.styleable.TextView_minLines: 663 setMinLines(a.getInt(attr, -1)); 664 break; 665 666 case com.android.internal.R.styleable.TextView_minHeight: 667 setMinHeight(a.getDimensionPixelSize(attr, -1)); 668 break; 669 670 case com.android.internal.R.styleable.TextView_maxEms: 671 setMaxEms(a.getInt(attr, -1)); 672 break; 673 674 case com.android.internal.R.styleable.TextView_maxWidth: 675 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 676 break; 677 678 case com.android.internal.R.styleable.TextView_ems: 679 setEms(a.getInt(attr, -1)); 680 break; 681 682 case com.android.internal.R.styleable.TextView_width: 683 setWidth(a.getDimensionPixelSize(attr, -1)); 684 break; 685 686 case com.android.internal.R.styleable.TextView_minEms: 687 setMinEms(a.getInt(attr, -1)); 688 break; 689 690 case com.android.internal.R.styleable.TextView_minWidth: 691 setMinWidth(a.getDimensionPixelSize(attr, -1)); 692 break; 693 694 case com.android.internal.R.styleable.TextView_gravity: 695 setGravity(a.getInt(attr, -1)); 696 break; 697 698 case com.android.internal.R.styleable.TextView_hint: 699 hint = a.getText(attr); 700 break; 701 702 case com.android.internal.R.styleable.TextView_text: 703 text = a.getText(attr); 704 break; 705 706 case com.android.internal.R.styleable.TextView_scrollHorizontally: 707 if (a.getBoolean(attr, false)) { 708 setHorizontallyScrolling(true); 709 } 710 break; 711 712 case com.android.internal.R.styleable.TextView_singleLine: 713 singleLine = a.getBoolean(attr, singleLine); 714 break; 715 716 case com.android.internal.R.styleable.TextView_ellipsize: 717 ellipsize = a.getInt(attr, ellipsize); 718 break; 719 720 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 721 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 722 break; 723 724 case com.android.internal.R.styleable.TextView_includeFontPadding: 725 if (!a.getBoolean(attr, true)) { 726 setIncludeFontPadding(false); 727 } 728 break; 729 730 case com.android.internal.R.styleable.TextView_cursorVisible: 731 if (!a.getBoolean(attr, true)) { 732 setCursorVisible(false); 733 } 734 break; 735 736 case com.android.internal.R.styleable.TextView_maxLength: 737 maxlength = a.getInt(attr, -1); 738 break; 739 740 case com.android.internal.R.styleable.TextView_textScaleX: 741 setTextScaleX(a.getFloat(attr, 1.0f)); 742 break; 743 744 case com.android.internal.R.styleable.TextView_freezesText: 745 mFreezesText = a.getBoolean(attr, false); 746 break; 747 748 case com.android.internal.R.styleable.TextView_shadowColor: 749 shadowcolor = a.getInt(attr, 0); 750 break; 751 752 case com.android.internal.R.styleable.TextView_shadowDx: 753 dx = a.getFloat(attr, 0); 754 break; 755 756 case com.android.internal.R.styleable.TextView_shadowDy: 757 dy = a.getFloat(attr, 0); 758 break; 759 760 case com.android.internal.R.styleable.TextView_shadowRadius: 761 r = a.getFloat(attr, 0); 762 break; 763 764 case com.android.internal.R.styleable.TextView_enabled: 765 setEnabled(a.getBoolean(attr, isEnabled())); 766 break; 767 768 case com.android.internal.R.styleable.TextView_textColorHighlight: 769 textColorHighlight = a.getColor(attr, textColorHighlight); 770 break; 771 772 case com.android.internal.R.styleable.TextView_textColor: 773 textColor = a.getColorStateList(attr); 774 break; 775 776 case com.android.internal.R.styleable.TextView_textColorHint: 777 textColorHint = a.getColorStateList(attr); 778 break; 779 780 case com.android.internal.R.styleable.TextView_textColorLink: 781 textColorLink = a.getColorStateList(attr); 782 break; 783 784 case com.android.internal.R.styleable.TextView_textSize: 785 textSize = a.getDimensionPixelSize(attr, textSize); 786 break; 787 788 case com.android.internal.R.styleable.TextView_typeface: 789 typefaceIndex = a.getInt(attr, typefaceIndex); 790 break; 791 792 case com.android.internal.R.styleable.TextView_textStyle: 793 styleIndex = a.getInt(attr, styleIndex); 794 break; 795 796 case com.android.internal.R.styleable.TextView_password: 797 password = a.getBoolean(attr, password); 798 break; 799 800 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 801 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 802 break; 803 804 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 805 mSpacingMult = a.getFloat(attr, mSpacingMult); 806 break; 807 808 case com.android.internal.R.styleable.TextView_inputType: 809 inputType = a.getInt(attr, mInputType); 810 break; 811 812 case com.android.internal.R.styleable.TextView_imeOptions: 813 if (mInputContentType == null) { 814 mInputContentType = new InputContentType(); 815 } 816 mInputContentType.imeOptions = a.getInt(attr, 817 mInputContentType.imeOptions); 818 break; 819 820 case com.android.internal.R.styleable.TextView_imeActionLabel: 821 if (mInputContentType == null) { 822 mInputContentType = new InputContentType(); 823 } 824 mInputContentType.imeActionLabel = a.getText(attr); 825 break; 826 827 case com.android.internal.R.styleable.TextView_imeActionId: 828 if (mInputContentType == null) { 829 mInputContentType = new InputContentType(); 830 } 831 mInputContentType.imeActionId = a.getInt(attr, 832 mInputContentType.imeActionId); 833 break; 834 835 case com.android.internal.R.styleable.TextView_privateImeOptions: 836 setPrivateImeOptions(a.getString(attr)); 837 break; 838 839 case com.android.internal.R.styleable.TextView_editorExtras: 840 try { 841 setInputExtras(a.getResourceId(attr, 0)); 842 } catch (XmlPullParserException e) { 843 Log.w(LOG_TAG, "Failure reading input extras", e); 844 } catch (IOException e) { 845 Log.w(LOG_TAG, "Failure reading input extras", e); 846 } 847 break; 848 849 case com.android.internal.R.styleable.TextView_textCursorDrawable: 850 mCursorDrawableRes = a.getResourceId(attr, 0); 851 break; 852 853 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 854 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 855 break; 856 857 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 858 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 859 break; 860 861 case com.android.internal.R.styleable.TextView_textSelectHandle: 862 mTextSelectHandleRes = a.getResourceId(attr, 0); 863 break; 864 865 case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout: 866 mTextEditSuggestionItemLayout = a.getResourceId(attr, 0); 867 break; 868 869 case com.android.internal.R.styleable.TextView_textIsSelectable: 870 mTextIsSelectable = a.getBoolean(attr, false); 871 break; 872 873 case com.android.internal.R.styleable.TextView_textAllCaps: 874 allCaps = a.getBoolean(attr, false); 875 break; 876 } 877 } 878 a.recycle(); 879 880 BufferType bufferType = BufferType.EDITABLE; 881 882 final int variation = 883 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 884 final boolean passwordInputType = variation 885 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 886 final boolean webPasswordInputType = variation 887 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 888 final boolean numberPasswordInputType = variation 889 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 890 891 if (inputMethod != null) { 892 Class<?> c; 893 894 try { 895 c = Class.forName(inputMethod.toString()); 896 } catch (ClassNotFoundException ex) { 897 throw new RuntimeException(ex); 898 } 899 900 try { 901 mInput = (KeyListener) c.newInstance(); 902 } catch (InstantiationException ex) { 903 throw new RuntimeException(ex); 904 } catch (IllegalAccessException ex) { 905 throw new RuntimeException(ex); 906 } 907 try { 908 mInputType = inputType != EditorInfo.TYPE_NULL 909 ? inputType 910 : mInput.getInputType(); 911 } catch (IncompatibleClassChangeError e) { 912 mInputType = EditorInfo.TYPE_CLASS_TEXT; 913 } 914 } else if (digits != null) { 915 mInput = DigitsKeyListener.getInstance(digits.toString()); 916 // If no input type was specified, we will default to generic 917 // text, since we can't tell the IME about the set of digits 918 // that was selected. 919 mInputType = inputType != EditorInfo.TYPE_NULL 920 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 921 } else if (inputType != EditorInfo.TYPE_NULL) { 922 setInputType(inputType, true); 923 // If set, the input type overrides what was set using the deprecated singleLine flag. 924 singleLine = !isMultilineInputType(inputType); 925 } else if (phone) { 926 mInput = DialerKeyListener.getInstance(); 927 mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 928 } else if (numeric != 0) { 929 mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 930 (numeric & DECIMAL) != 0); 931 inputType = EditorInfo.TYPE_CLASS_NUMBER; 932 if ((numeric & SIGNED) != 0) { 933 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 934 } 935 if ((numeric & DECIMAL) != 0) { 936 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 937 } 938 mInputType = inputType; 939 } else if (autotext || autocap != -1) { 940 TextKeyListener.Capitalize cap; 941 942 inputType = EditorInfo.TYPE_CLASS_TEXT; 943 944 switch (autocap) { 945 case 1: 946 cap = TextKeyListener.Capitalize.SENTENCES; 947 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 948 break; 949 950 case 2: 951 cap = TextKeyListener.Capitalize.WORDS; 952 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 953 break; 954 955 case 3: 956 cap = TextKeyListener.Capitalize.CHARACTERS; 957 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 958 break; 959 960 default: 961 cap = TextKeyListener.Capitalize.NONE; 962 break; 963 } 964 965 mInput = TextKeyListener.getInstance(autotext, cap); 966 mInputType = inputType; 967 } else if (mTextIsSelectable) { 968 // Prevent text changes from keyboard. 969 mInputType = EditorInfo.TYPE_NULL; 970 mInput = null; 971 bufferType = BufferType.SPANNABLE; 972 // Required to request focus while in touch mode. 973 setFocusableInTouchMode(true); 974 // So that selection can be changed using arrow keys and touch is handled. 975 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 976 } else if (editable) { 977 mInput = TextKeyListener.getInstance(); 978 mInputType = EditorInfo.TYPE_CLASS_TEXT; 979 } else { 980 mInput = null; 981 982 switch (buffertype) { 983 case 0: 984 bufferType = BufferType.NORMAL; 985 break; 986 case 1: 987 bufferType = BufferType.SPANNABLE; 988 break; 989 case 2: 990 bufferType = BufferType.EDITABLE; 991 break; 992 } 993 } 994 995 // mInputType has been set from inputType, possibly modified by mInputMethod. 996 // Specialize mInputType to [web]password if we have a text class and the original input 997 // type was a password. 998 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 999 if (password || passwordInputType) { 1000 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 1001 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 1002 } 1003 if (webPasswordInputType) { 1004 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 1005 | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 1006 } 1007 } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { 1008 if (numberPasswordInputType) { 1009 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 1010 | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 1011 } 1012 } 1013 1014 if (selectallonfocus) { 1015 mSelectAllOnFocus = true; 1016 1017 if (bufferType == BufferType.NORMAL) 1018 bufferType = BufferType.SPANNABLE; 1019 } 1020 1021 setCompoundDrawablesWithIntrinsicBounds( 1022 drawableLeft, drawableTop, drawableRight, drawableBottom); 1023 setRelativeDrawablesIfNeeded(drawableStart, drawableEnd); 1024 setCompoundDrawablePadding(drawablePadding); 1025 1026 // Same as setSingleLine(), but make sure the transformation method and the maximum number 1027 // of lines of height are unchanged for multi-line TextViews. 1028 setInputTypeSingleLine(singleLine); 1029 applySingleLine(singleLine, singleLine, singleLine); 1030 1031 if (singleLine && mInput == null && ellipsize < 0) { 1032 ellipsize = 3; // END 1033 } 1034 1035 switch (ellipsize) { 1036 case 1: 1037 setEllipsize(TextUtils.TruncateAt.START); 1038 break; 1039 case 2: 1040 setEllipsize(TextUtils.TruncateAt.MIDDLE); 1041 break; 1042 case 3: 1043 setEllipsize(TextUtils.TruncateAt.END); 1044 break; 1045 case 4: 1046 if (ViewConfiguration.get(context).isFadingMarqueeEnabled()) { 1047 setHorizontalFadingEdgeEnabled(true); 1048 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 1049 } else { 1050 setHorizontalFadingEdgeEnabled(false); 1051 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 1052 } 1053 setEllipsize(TextUtils.TruncateAt.MARQUEE); 1054 break; 1055 } 1056 1057 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 1058 setHintTextColor(textColorHint); 1059 setLinkTextColor(textColorLink); 1060 if (textColorHighlight != 0) { 1061 setHighlightColor(textColorHighlight); 1062 } 1063 setRawTextSize(textSize); 1064 1065 if (allCaps) { 1066 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 1067 } 1068 1069 if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) { 1070 setTransformationMethod(PasswordTransformationMethod.getInstance()); 1071 typefaceIndex = MONOSPACE; 1072 } else if ((mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 1073 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 1074 typefaceIndex = MONOSPACE; 1075 } 1076 1077 setTypefaceByIndex(typefaceIndex, styleIndex); 1078 1079 if (shadowcolor != 0) { 1080 setShadowLayer(r, dx, dy, shadowcolor); 1081 } 1082 1083 if (maxlength >= 0) { 1084 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 1085 } else { 1086 setFilters(NO_FILTERS); 1087 } 1088 1089 setText(text, bufferType); 1090 if (hint != null) setHint(hint); 1091 1092 /* 1093 * Views are not normally focusable unless specified to be. 1094 * However, TextViews that have input or movement methods *are* 1095 * focusable by default. 1096 */ 1097 a = context.obtainStyledAttributes(attrs, 1098 com.android.internal.R.styleable.View, 1099 defStyle, 0); 1100 1101 boolean focusable = mMovement != null || mInput != null; 1102 boolean clickable = focusable; 1103 boolean longClickable = focusable; 1104 1105 n = a.getIndexCount(); 1106 for (int i = 0; i < n; i++) { 1107 int attr = a.getIndex(i); 1108 1109 switch (attr) { 1110 case com.android.internal.R.styleable.View_focusable: 1111 focusable = a.getBoolean(attr, focusable); 1112 break; 1113 1114 case com.android.internal.R.styleable.View_clickable: 1115 clickable = a.getBoolean(attr, clickable); 1116 break; 1117 1118 case com.android.internal.R.styleable.View_longClickable: 1119 longClickable = a.getBoolean(attr, longClickable); 1120 break; 1121 } 1122 } 1123 a.recycle(); 1124 1125 setFocusable(focusable); 1126 setClickable(clickable); 1127 setLongClickable(longClickable); 1128 1129 prepareCursorControllers(); 1130 1131 final ViewConfiguration viewConfiguration = ViewConfiguration.get(context); 1132 final int touchSlop = viewConfiguration.getScaledTouchSlop(); 1133 mSquaredTouchSlopDistance = touchSlop * touchSlop; 1134 } 1135 1136 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 1137 Typeface tf = null; 1138 switch (typefaceIndex) { 1139 case SANS: 1140 tf = Typeface.SANS_SERIF; 1141 break; 1142 1143 case SERIF: 1144 tf = Typeface.SERIF; 1145 break; 1146 1147 case MONOSPACE: 1148 tf = Typeface.MONOSPACE; 1149 break; 1150 } 1151 1152 setTypeface(tf, styleIndex); 1153 } 1154 1155 private void setRelativeDrawablesIfNeeded(Drawable start, Drawable end) { 1156 boolean hasRelativeDrawables = (start != null) || (end != null); 1157 if (hasRelativeDrawables) { 1158 Drawables dr = mDrawables; 1159 if (dr == null) { 1160 mDrawables = dr = new Drawables(); 1161 } 1162 final Rect compoundRect = dr.mCompoundRect; 1163 int[] state = getDrawableState(); 1164 if (start != null) { 1165 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1166 start.setState(state); 1167 start.copyBounds(compoundRect); 1168 start.setCallback(this); 1169 1170 dr.mDrawableStart = start; 1171 dr.mDrawableSizeStart = compoundRect.width(); 1172 dr.mDrawableHeightStart = compoundRect.height(); 1173 } else { 1174 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1175 } 1176 if (end != null) { 1177 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1178 end.setState(state); 1179 end.copyBounds(compoundRect); 1180 end.setCallback(this); 1181 1182 dr.mDrawableEnd = end; 1183 dr.mDrawableSizeEnd = compoundRect.width(); 1184 dr.mDrawableHeightEnd = compoundRect.height(); 1185 } else { 1186 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1187 } 1188 } 1189 } 1190 1191 @Override 1192 public void setEnabled(boolean enabled) { 1193 if (enabled == isEnabled()) { 1194 return; 1195 } 1196 1197 if (!enabled) { 1198 // Hide the soft input if the currently active TextView is disabled 1199 InputMethodManager imm = InputMethodManager.peekInstance(); 1200 if (imm != null && imm.isActive(this)) { 1201 imm.hideSoftInputFromWindow(getWindowToken(), 0); 1202 } 1203 } 1204 super.setEnabled(enabled); 1205 prepareCursorControllers(); 1206 if (enabled) { 1207 // Make sure IME is updated with current editor info. 1208 InputMethodManager imm = InputMethodManager.peekInstance(); 1209 if (imm != null) imm.restartInput(this); 1210 } 1211 } 1212 1213 /** 1214 * Sets the typeface and style in which the text should be displayed, 1215 * and turns on the fake bold and italic bits in the Paint if the 1216 * Typeface that you provided does not have all the bits in the 1217 * style that you specified. 1218 * 1219 * @attr ref android.R.styleable#TextView_typeface 1220 * @attr ref android.R.styleable#TextView_textStyle 1221 */ 1222 public void setTypeface(Typeface tf, int style) { 1223 if (style > 0) { 1224 if (tf == null) { 1225 tf = Typeface.defaultFromStyle(style); 1226 } else { 1227 tf = Typeface.create(tf, style); 1228 } 1229 1230 setTypeface(tf); 1231 // now compute what (if any) algorithmic styling is needed 1232 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1233 int need = style & ~typefaceStyle; 1234 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1235 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1236 } else { 1237 mTextPaint.setFakeBoldText(false); 1238 mTextPaint.setTextSkewX(0); 1239 setTypeface(tf); 1240 } 1241 } 1242 1243 /** 1244 * Subclasses override this to specify that they have a KeyListener 1245 * by default even if not specifically called for in the XML options. 1246 */ 1247 protected boolean getDefaultEditable() { 1248 return false; 1249 } 1250 1251 /** 1252 * Subclasses override this to specify a default movement method. 1253 */ 1254 protected MovementMethod getDefaultMovementMethod() { 1255 return null; 1256 } 1257 1258 /** 1259 * Return the text the TextView is displaying. If setText() was called with 1260 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1261 * the return value from this method to Spannable or Editable, respectively. 1262 * 1263 * Note: The content of the return value should not be modified. If you want 1264 * a modifiable one, you should make your own copy first. 1265 */ 1266 @ViewDebug.CapturedViewProperty 1267 public CharSequence getText() { 1268 return mText; 1269 } 1270 1271 /** 1272 * Returns the length, in characters, of the text managed by this TextView 1273 */ 1274 public int length() { 1275 return mText.length(); 1276 } 1277 1278 /** 1279 * Return the text the TextView is displaying as an Editable object. If 1280 * the text is not editable, null is returned. 1281 * 1282 * @see #getText 1283 */ 1284 public Editable getEditableText() { 1285 return (mText instanceof Editable) ? (Editable)mText : null; 1286 } 1287 1288 /** 1289 * @return the height of one standard line in pixels. Note that markup 1290 * within the text can cause individual lines to be taller or shorter 1291 * than this height, and the layout may contain additional first- 1292 * or last-line padding. 1293 */ 1294 public int getLineHeight() { 1295 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 1296 } 1297 1298 /** 1299 * @return the Layout that is currently being used to display the text. 1300 * This can be null if the text or width has recently changes. 1301 */ 1302 public final Layout getLayout() { 1303 return mLayout; 1304 } 1305 1306 /** 1307 * @return the current key listener for this TextView. 1308 * This will frequently be null for non-EditText TextViews. 1309 */ 1310 public final KeyListener getKeyListener() { 1311 return mInput; 1312 } 1313 1314 /** 1315 * Sets the key listener to be used with this TextView. This can be null 1316 * to disallow user input. Note that this method has significant and 1317 * subtle interactions with soft keyboards and other input method: 1318 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1319 * for important details. Calling this method will replace the current 1320 * content type of the text view with the content type returned by the 1321 * key listener. 1322 * <p> 1323 * Be warned that if you want a TextView with a key listener or movement 1324 * method not to be focusable, or if you want a TextView without a 1325 * key listener or movement method to be focusable, you must call 1326 * {@link #setFocusable} again after calling this to get the focusability 1327 * back the way you want it. 1328 * 1329 * @attr ref android.R.styleable#TextView_numeric 1330 * @attr ref android.R.styleable#TextView_digits 1331 * @attr ref android.R.styleable#TextView_phoneNumber 1332 * @attr ref android.R.styleable#TextView_inputMethod 1333 * @attr ref android.R.styleable#TextView_capitalize 1334 * @attr ref android.R.styleable#TextView_autoText 1335 */ 1336 public void setKeyListener(KeyListener input) { 1337 setKeyListenerOnly(input); 1338 fixFocusableAndClickableSettings(); 1339 1340 if (input != null) { 1341 try { 1342 mInputType = mInput.getInputType(); 1343 } catch (IncompatibleClassChangeError e) { 1344 mInputType = EditorInfo.TYPE_CLASS_TEXT; 1345 } 1346 // Change inputType, without affecting transformation. 1347 // No need to applySingleLine since mSingleLine is unchanged. 1348 setInputTypeSingleLine(mSingleLine); 1349 } else { 1350 mInputType = EditorInfo.TYPE_NULL; 1351 } 1352 1353 InputMethodManager imm = InputMethodManager.peekInstance(); 1354 if (imm != null) imm.restartInput(this); 1355 } 1356 1357 private void setKeyListenerOnly(KeyListener input) { 1358 mInput = input; 1359 if (mInput != null && !(mText instanceof Editable)) 1360 setText(mText); 1361 1362 setFilters((Editable) mText, mFilters); 1363 } 1364 1365 /** 1366 * @return the movement method being used for this TextView. 1367 * This will frequently be null for non-EditText TextViews. 1368 */ 1369 public final MovementMethod getMovementMethod() { 1370 return mMovement; 1371 } 1372 1373 /** 1374 * Sets the movement method (arrow key handler) to be used for 1375 * this TextView. This can be null to disallow using the arrow keys 1376 * to move the cursor or scroll the view. 1377 * <p> 1378 * Be warned that if you want a TextView with a key listener or movement 1379 * method not to be focusable, or if you want a TextView without a 1380 * key listener or movement method to be focusable, you must call 1381 * {@link #setFocusable} again after calling this to get the focusability 1382 * back the way you want it. 1383 */ 1384 public final void setMovementMethod(MovementMethod movement) { 1385 mMovement = movement; 1386 1387 if (mMovement != null && !(mText instanceof Spannable)) 1388 setText(mText); 1389 1390 fixFocusableAndClickableSettings(); 1391 1392 // SelectionModifierCursorController depends on textCanBeSelected, which depends on mMovement 1393 prepareCursorControllers(); 1394 } 1395 1396 private void fixFocusableAndClickableSettings() { 1397 if ((mMovement != null) || mInput != null) { 1398 setFocusable(true); 1399 setClickable(true); 1400 setLongClickable(true); 1401 } else { 1402 setFocusable(false); 1403 setClickable(false); 1404 setLongClickable(false); 1405 } 1406 } 1407 1408 /** 1409 * @return the current transformation method for this TextView. 1410 * This will frequently be null except for single-line and password 1411 * fields. 1412 */ 1413 public final TransformationMethod getTransformationMethod() { 1414 return mTransformation; 1415 } 1416 1417 /** 1418 * Sets the transformation that is applied to the text that this 1419 * TextView is displaying. 1420 * 1421 * @attr ref android.R.styleable#TextView_password 1422 * @attr ref android.R.styleable#TextView_singleLine 1423 */ 1424 public final void setTransformationMethod(TransformationMethod method) { 1425 if (method == mTransformation) { 1426 // Avoid the setText() below if the transformation is 1427 // the same. 1428 return; 1429 } 1430 if (mTransformation != null) { 1431 if (mText instanceof Spannable) { 1432 ((Spannable) mText).removeSpan(mTransformation); 1433 } 1434 } 1435 1436 mTransformation = method; 1437 1438 if (method instanceof TransformationMethod2) { 1439 TransformationMethod2 method2 = (TransformationMethod2) method; 1440 mAllowTransformationLengthChange = !mTextIsSelectable && !(mText instanceof Editable); 1441 method2.setLengthChangesAllowed(mAllowTransformationLengthChange); 1442 } else { 1443 mAllowTransformationLengthChange = false; 1444 } 1445 1446 setText(mText); 1447 } 1448 1449 /** 1450 * Returns the top padding of the view, plus space for the top 1451 * Drawable if any. 1452 */ 1453 public int getCompoundPaddingTop() { 1454 final Drawables dr = mDrawables; 1455 if (dr == null || dr.mDrawableTop == null) { 1456 return mPaddingTop; 1457 } else { 1458 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1459 } 1460 } 1461 1462 /** 1463 * Returns the bottom padding of the view, plus space for the bottom 1464 * Drawable if any. 1465 */ 1466 public int getCompoundPaddingBottom() { 1467 final Drawables dr = mDrawables; 1468 if (dr == null || dr.mDrawableBottom == null) { 1469 return mPaddingBottom; 1470 } else { 1471 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1472 } 1473 } 1474 1475 /** 1476 * Returns the left padding of the view, plus space for the left 1477 * Drawable if any. 1478 */ 1479 public int getCompoundPaddingLeft() { 1480 final Drawables dr = mDrawables; 1481 if (dr == null || dr.mDrawableLeft == null) { 1482 return mPaddingLeft; 1483 } else { 1484 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1485 } 1486 } 1487 1488 /** 1489 * Returns the right padding of the view, plus space for the right 1490 * Drawable if any. 1491 */ 1492 public int getCompoundPaddingRight() { 1493 final Drawables dr = mDrawables; 1494 if (dr == null || dr.mDrawableRight == null) { 1495 return mPaddingRight; 1496 } else { 1497 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1498 } 1499 } 1500 1501 /** 1502 * Returns the start padding of the view, plus space for the start 1503 * Drawable if any. 1504 * 1505 * @hide 1506 */ 1507 public int getCompoundPaddingStart() { 1508 resolveDrawables(); 1509 switch(getResolvedLayoutDirection()) { 1510 default: 1511 case LAYOUT_DIRECTION_LTR: 1512 return getCompoundPaddingLeft(); 1513 case LAYOUT_DIRECTION_RTL: 1514 return getCompoundPaddingRight(); 1515 } 1516 } 1517 1518 /** 1519 * Returns the end padding of the view, plus space for the end 1520 * Drawable if any. 1521 * 1522 * @hide 1523 */ 1524 public int getCompoundPaddingEnd() { 1525 resolveDrawables(); 1526 switch(getResolvedLayoutDirection()) { 1527 default: 1528 case LAYOUT_DIRECTION_LTR: 1529 return getCompoundPaddingRight(); 1530 case LAYOUT_DIRECTION_RTL: 1531 return getCompoundPaddingLeft(); 1532 } 1533 } 1534 1535 /** 1536 * Returns the extended top padding of the view, including both the 1537 * top Drawable if any and any extra space to keep more than maxLines 1538 * of text from showing. It is only valid to call this after measuring. 1539 */ 1540 public int getExtendedPaddingTop() { 1541 if (mMaxMode != LINES) { 1542 return getCompoundPaddingTop(); 1543 } 1544 1545 if (mLayout.getLineCount() <= mMaximum) { 1546 return getCompoundPaddingTop(); 1547 } 1548 1549 int top = getCompoundPaddingTop(); 1550 int bottom = getCompoundPaddingBottom(); 1551 int viewht = getHeight() - top - bottom; 1552 int layoutht = mLayout.getLineTop(mMaximum); 1553 1554 if (layoutht >= viewht) { 1555 return top; 1556 } 1557 1558 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1559 if (gravity == Gravity.TOP) { 1560 return top; 1561 } else if (gravity == Gravity.BOTTOM) { 1562 return top + viewht - layoutht; 1563 } else { // (gravity == Gravity.CENTER_VERTICAL) 1564 return top + (viewht - layoutht) / 2; 1565 } 1566 } 1567 1568 /** 1569 * Returns the extended bottom padding of the view, including both the 1570 * bottom Drawable if any and any extra space to keep more than maxLines 1571 * of text from showing. It is only valid to call this after measuring. 1572 */ 1573 public int getExtendedPaddingBottom() { 1574 if (mMaxMode != LINES) { 1575 return getCompoundPaddingBottom(); 1576 } 1577 1578 if (mLayout.getLineCount() <= mMaximum) { 1579 return getCompoundPaddingBottom(); 1580 } 1581 1582 int top = getCompoundPaddingTop(); 1583 int bottom = getCompoundPaddingBottom(); 1584 int viewht = getHeight() - top - bottom; 1585 int layoutht = mLayout.getLineTop(mMaximum); 1586 1587 if (layoutht >= viewht) { 1588 return bottom; 1589 } 1590 1591 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1592 if (gravity == Gravity.TOP) { 1593 return bottom + viewht - layoutht; 1594 } else if (gravity == Gravity.BOTTOM) { 1595 return bottom; 1596 } else { // (gravity == Gravity.CENTER_VERTICAL) 1597 return bottom + (viewht - layoutht) / 2; 1598 } 1599 } 1600 1601 /** 1602 * Returns the total left padding of the view, including the left 1603 * Drawable if any. 1604 */ 1605 public int getTotalPaddingLeft() { 1606 return getCompoundPaddingLeft(); 1607 } 1608 1609 /** 1610 * Returns the total right padding of the view, including the right 1611 * Drawable if any. 1612 */ 1613 public int getTotalPaddingRight() { 1614 return getCompoundPaddingRight(); 1615 } 1616 1617 /** 1618 * Returns the total start padding of the view, including the start 1619 * Drawable if any. 1620 * 1621 * @hide 1622 */ 1623 public int getTotalPaddingStart() { 1624 return getCompoundPaddingStart(); 1625 } 1626 1627 /** 1628 * Returns the total end padding of the view, including the end 1629 * Drawable if any. 1630 * 1631 * @hide 1632 */ 1633 public int getTotalPaddingEnd() { 1634 return getCompoundPaddingEnd(); 1635 } 1636 1637 /** 1638 * Returns the total top padding of the view, including the top 1639 * Drawable if any, the extra space to keep more than maxLines 1640 * from showing, and the vertical offset for gravity, if any. 1641 */ 1642 public int getTotalPaddingTop() { 1643 return getExtendedPaddingTop() + getVerticalOffset(true); 1644 } 1645 1646 /** 1647 * Returns the total bottom padding of the view, including the bottom 1648 * Drawable if any, the extra space to keep more than maxLines 1649 * from showing, and the vertical offset for gravity, if any. 1650 */ 1651 public int getTotalPaddingBottom() { 1652 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1653 } 1654 1655 /** 1656 * Sets the Drawables (if any) to appear to the left of, above, 1657 * to the right of, and below the text. Use null if you do not 1658 * want a Drawable there. The Drawables must already have had 1659 * {@link Drawable#setBounds} called. 1660 * 1661 * @attr ref android.R.styleable#TextView_drawableLeft 1662 * @attr ref android.R.styleable#TextView_drawableTop 1663 * @attr ref android.R.styleable#TextView_drawableRight 1664 * @attr ref android.R.styleable#TextView_drawableBottom 1665 */ 1666 public void setCompoundDrawables(Drawable left, Drawable top, 1667 Drawable right, Drawable bottom) { 1668 Drawables dr = mDrawables; 1669 1670 final boolean drawables = left != null || top != null 1671 || right != null || bottom != null; 1672 1673 if (!drawables) { 1674 // Clearing drawables... can we free the data structure? 1675 if (dr != null) { 1676 if (dr.mDrawablePadding == 0) { 1677 mDrawables = null; 1678 } else { 1679 // We need to retain the last set padding, so just clear 1680 // out all of the fields in the existing structure. 1681 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1682 dr.mDrawableLeft = null; 1683 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1684 dr.mDrawableTop = null; 1685 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1686 dr.mDrawableRight = null; 1687 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1688 dr.mDrawableBottom = null; 1689 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1690 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1691 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1692 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1693 } 1694 } 1695 } else { 1696 if (dr == null) { 1697 mDrawables = dr = new Drawables(); 1698 } 1699 1700 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1701 dr.mDrawableLeft.setCallback(null); 1702 } 1703 dr.mDrawableLeft = left; 1704 1705 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1706 dr.mDrawableTop.setCallback(null); 1707 } 1708 dr.mDrawableTop = top; 1709 1710 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1711 dr.mDrawableRight.setCallback(null); 1712 } 1713 dr.mDrawableRight = right; 1714 1715 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1716 dr.mDrawableBottom.setCallback(null); 1717 } 1718 dr.mDrawableBottom = bottom; 1719 1720 final Rect compoundRect = dr.mCompoundRect; 1721 int[] state; 1722 1723 state = getDrawableState(); 1724 1725 if (left != null) { 1726 left.setState(state); 1727 left.copyBounds(compoundRect); 1728 left.setCallback(this); 1729 dr.mDrawableSizeLeft = compoundRect.width(); 1730 dr.mDrawableHeightLeft = compoundRect.height(); 1731 } else { 1732 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1733 } 1734 1735 if (right != null) { 1736 right.setState(state); 1737 right.copyBounds(compoundRect); 1738 right.setCallback(this); 1739 dr.mDrawableSizeRight = compoundRect.width(); 1740 dr.mDrawableHeightRight = compoundRect.height(); 1741 } else { 1742 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1743 } 1744 1745 if (top != null) { 1746 top.setState(state); 1747 top.copyBounds(compoundRect); 1748 top.setCallback(this); 1749 dr.mDrawableSizeTop = compoundRect.height(); 1750 dr.mDrawableWidthTop = compoundRect.width(); 1751 } else { 1752 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1753 } 1754 1755 if (bottom != null) { 1756 bottom.setState(state); 1757 bottom.copyBounds(compoundRect); 1758 bottom.setCallback(this); 1759 dr.mDrawableSizeBottom = compoundRect.height(); 1760 dr.mDrawableWidthBottom = compoundRect.width(); 1761 } else { 1762 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1763 } 1764 } 1765 1766 invalidate(); 1767 requestLayout(); 1768 } 1769 1770 /** 1771 * Sets the Drawables (if any) to appear to the left of, above, 1772 * to the right of, and below the text. Use 0 if you do not 1773 * want a Drawable there. The Drawables' bounds will be set to 1774 * their intrinsic bounds. 1775 * 1776 * @param left Resource identifier of the left Drawable. 1777 * @param top Resource identifier of the top Drawable. 1778 * @param right Resource identifier of the right Drawable. 1779 * @param bottom Resource identifier of the bottom Drawable. 1780 * 1781 * @attr ref android.R.styleable#TextView_drawableLeft 1782 * @attr ref android.R.styleable#TextView_drawableTop 1783 * @attr ref android.R.styleable#TextView_drawableRight 1784 * @attr ref android.R.styleable#TextView_drawableBottom 1785 */ 1786 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1787 final Resources resources = getContext().getResources(); 1788 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1789 top != 0 ? resources.getDrawable(top) : null, 1790 right != 0 ? resources.getDrawable(right) : null, 1791 bottom != 0 ? resources.getDrawable(bottom) : null); 1792 } 1793 1794 /** 1795 * Sets the Drawables (if any) to appear to the left of, above, 1796 * to the right of, and below the text. Use null if you do not 1797 * want a Drawable there. The Drawables' bounds will be set to 1798 * their intrinsic bounds. 1799 * 1800 * @attr ref android.R.styleable#TextView_drawableLeft 1801 * @attr ref android.R.styleable#TextView_drawableTop 1802 * @attr ref android.R.styleable#TextView_drawableRight 1803 * @attr ref android.R.styleable#TextView_drawableBottom 1804 */ 1805 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1806 Drawable right, Drawable bottom) { 1807 1808 if (left != null) { 1809 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1810 } 1811 if (right != null) { 1812 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1813 } 1814 if (top != null) { 1815 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1816 } 1817 if (bottom != null) { 1818 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1819 } 1820 setCompoundDrawables(left, top, right, bottom); 1821 } 1822 1823 /** 1824 * Sets the Drawables (if any) to appear to the start of, above, 1825 * to the end of, and below the text. Use null if you do not 1826 * want a Drawable there. The Drawables must already have had 1827 * {@link Drawable#setBounds} called. 1828 * 1829 * @attr ref android.R.styleable#TextView_drawableStart 1830 * @attr ref android.R.styleable#TextView_drawableTop 1831 * @attr ref android.R.styleable#TextView_drawableEnd 1832 * @attr ref android.R.styleable#TextView_drawableBottom 1833 * 1834 * @hide 1835 */ 1836 public void setCompoundDrawablesRelative(Drawable start, Drawable top, 1837 Drawable end, Drawable bottom) { 1838 Drawables dr = mDrawables; 1839 1840 final boolean drawables = start != null || top != null 1841 || end != null || bottom != null; 1842 1843 if (!drawables) { 1844 // Clearing drawables... can we free the data structure? 1845 if (dr != null) { 1846 if (dr.mDrawablePadding == 0) { 1847 mDrawables = null; 1848 } else { 1849 // We need to retain the last set padding, so just clear 1850 // out all of the fields in the existing structure. 1851 if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null); 1852 dr.mDrawableStart = null; 1853 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1854 dr.mDrawableTop = null; 1855 if (dr.mDrawableEnd != null) dr.mDrawableEnd.setCallback(null); 1856 dr.mDrawableEnd = null; 1857 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1858 dr.mDrawableBottom = null; 1859 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1860 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1861 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1862 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1863 } 1864 } 1865 } else { 1866 if (dr == null) { 1867 mDrawables = dr = new Drawables(); 1868 } 1869 1870 if (dr.mDrawableStart != start && dr.mDrawableStart != null) { 1871 dr.mDrawableStart.setCallback(null); 1872 } 1873 dr.mDrawableStart = start; 1874 1875 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1876 dr.mDrawableTop.setCallback(null); 1877 } 1878 dr.mDrawableTop = top; 1879 1880 if (dr.mDrawableEnd != end && dr.mDrawableEnd != null) { 1881 dr.mDrawableEnd.setCallback(null); 1882 } 1883 dr.mDrawableEnd = end; 1884 1885 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1886 dr.mDrawableBottom.setCallback(null); 1887 } 1888 dr.mDrawableBottom = bottom; 1889 1890 final Rect compoundRect = dr.mCompoundRect; 1891 int[] state; 1892 1893 state = getDrawableState(); 1894 1895 if (start != null) { 1896 start.setState(state); 1897 start.copyBounds(compoundRect); 1898 start.setCallback(this); 1899 dr.mDrawableSizeStart = compoundRect.width(); 1900 dr.mDrawableHeightStart = compoundRect.height(); 1901 } else { 1902 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1903 } 1904 1905 if (end != null) { 1906 end.setState(state); 1907 end.copyBounds(compoundRect); 1908 end.setCallback(this); 1909 dr.mDrawableSizeEnd = compoundRect.width(); 1910 dr.mDrawableHeightEnd = compoundRect.height(); 1911 } else { 1912 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1913 } 1914 1915 if (top != null) { 1916 top.setState(state); 1917 top.copyBounds(compoundRect); 1918 top.setCallback(this); 1919 dr.mDrawableSizeTop = compoundRect.height(); 1920 dr.mDrawableWidthTop = compoundRect.width(); 1921 } else { 1922 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1923 } 1924 1925 if (bottom != null) { 1926 bottom.setState(state); 1927 bottom.copyBounds(compoundRect); 1928 bottom.setCallback(this); 1929 dr.mDrawableSizeBottom = compoundRect.height(); 1930 dr.mDrawableWidthBottom = compoundRect.width(); 1931 } else { 1932 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1933 } 1934 } 1935 1936 resolveDrawables(); 1937 invalidate(); 1938 requestLayout(); 1939 } 1940 1941 /** 1942 * Sets the Drawables (if any) to appear to the start of, above, 1943 * to the end of, and below the text. Use 0 if you do not 1944 * want a Drawable there. The Drawables' bounds will be set to 1945 * their intrinsic bounds. 1946 * 1947 * @param start Resource identifier of the start Drawable. 1948 * @param top Resource identifier of the top Drawable. 1949 * @param end Resource identifier of the end Drawable. 1950 * @param bottom Resource identifier of the bottom Drawable. 1951 * 1952 * @attr ref android.R.styleable#TextView_drawableStart 1953 * @attr ref android.R.styleable#TextView_drawableTop 1954 * @attr ref android.R.styleable#TextView_drawableEnd 1955 * @attr ref android.R.styleable#TextView_drawableBottom 1956 * 1957 * @hide 1958 */ 1959 public void setCompoundDrawablesRelativeWithIntrinsicBounds(int start, int top, int end, 1960 int bottom) { 1961 resetResolvedDrawables(); 1962 final Resources resources = getContext().getResources(); 1963 setCompoundDrawablesRelativeWithIntrinsicBounds( 1964 start != 0 ? resources.getDrawable(start) : null, 1965 top != 0 ? resources.getDrawable(top) : null, 1966 end != 0 ? resources.getDrawable(end) : null, 1967 bottom != 0 ? resources.getDrawable(bottom) : null); 1968 } 1969 1970 /** 1971 * Sets the Drawables (if any) to appear to the start of, above, 1972 * to the end of, and below the text. Use null if you do not 1973 * want a Drawable there. The Drawables' bounds will be set to 1974 * their intrinsic bounds. 1975 * 1976 * @attr ref android.R.styleable#TextView_drawableStart 1977 * @attr ref android.R.styleable#TextView_drawableTop 1978 * @attr ref android.R.styleable#TextView_drawableEnd 1979 * @attr ref android.R.styleable#TextView_drawableBottom 1980 * 1981 * @hide 1982 */ 1983 public void setCompoundDrawablesRelativeWithIntrinsicBounds(Drawable start, Drawable top, 1984 Drawable end, Drawable bottom) { 1985 1986 resetResolvedDrawables(); 1987 if (start != null) { 1988 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1989 } 1990 if (end != null) { 1991 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1992 } 1993 if (top != null) { 1994 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1995 } 1996 if (bottom != null) { 1997 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1998 } 1999 setCompoundDrawablesRelative(start, top, end, bottom); 2000 } 2001 2002 /** 2003 * Returns drawables for the left, top, right, and bottom borders. 2004 */ 2005 public Drawable[] getCompoundDrawables() { 2006 final Drawables dr = mDrawables; 2007 if (dr != null) { 2008 return new Drawable[] { 2009 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 2010 }; 2011 } else { 2012 return new Drawable[] { null, null, null, null }; 2013 } 2014 } 2015 2016 /** 2017 * Returns drawables for the start, top, end, and bottom borders. 2018 * 2019 * @hide 2020 */ 2021 public Drawable[] getCompoundDrawablesRelative() { 2022 final Drawables dr = mDrawables; 2023 if (dr != null) { 2024 return new Drawable[] { 2025 dr.mDrawableStart, dr.mDrawableTop, dr.mDrawableEnd, dr.mDrawableBottom 2026 }; 2027 } else { 2028 return new Drawable[] { null, null, null, null }; 2029 } 2030 } 2031 2032 /** 2033 * Sets the size of the padding between the compound drawables and 2034 * the text. 2035 * 2036 * @attr ref android.R.styleable#TextView_drawablePadding 2037 */ 2038 public void setCompoundDrawablePadding(int pad) { 2039 Drawables dr = mDrawables; 2040 if (pad == 0) { 2041 if (dr != null) { 2042 dr.mDrawablePadding = pad; 2043 } 2044 } else { 2045 if (dr == null) { 2046 mDrawables = dr = new Drawables(); 2047 } 2048 dr.mDrawablePadding = pad; 2049 } 2050 2051 invalidate(); 2052 requestLayout(); 2053 } 2054 2055 /** 2056 * Returns the padding between the compound drawables and the text. 2057 */ 2058 public int getCompoundDrawablePadding() { 2059 final Drawables dr = mDrawables; 2060 return dr != null ? dr.mDrawablePadding : 0; 2061 } 2062 2063 @Override 2064 public void setPadding(int left, int top, int right, int bottom) { 2065 if (left != mPaddingLeft || 2066 right != mPaddingRight || 2067 top != mPaddingTop || 2068 bottom != mPaddingBottom) { 2069 nullLayouts(); 2070 } 2071 2072 // the super call will requestLayout() 2073 super.setPadding(left, top, right, bottom); 2074 invalidate(); 2075 } 2076 2077 /** 2078 * Gets the autolink mask of the text. See {@link 2079 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2080 * possible values. 2081 * 2082 * @attr ref android.R.styleable#TextView_autoLink 2083 */ 2084 public final int getAutoLinkMask() { 2085 return mAutoLinkMask; 2086 } 2087 2088 /** 2089 * Sets the text color, size, style, hint color, and highlight color 2090 * from the specified TextAppearance resource. 2091 */ 2092 public void setTextAppearance(Context context, int resid) { 2093 TypedArray appearance = 2094 context.obtainStyledAttributes(resid, 2095 com.android.internal.R.styleable.TextAppearance); 2096 2097 int color; 2098 ColorStateList colors; 2099 int ts; 2100 2101 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 2102 if (color != 0) { 2103 setHighlightColor(color); 2104 } 2105 2106 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2107 TextAppearance_textColor); 2108 if (colors != null) { 2109 setTextColor(colors); 2110 } 2111 2112 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 2113 TextAppearance_textSize, 0); 2114 if (ts != 0) { 2115 setRawTextSize(ts); 2116 } 2117 2118 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2119 TextAppearance_textColorHint); 2120 if (colors != null) { 2121 setHintTextColor(colors); 2122 } 2123 2124 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2125 TextAppearance_textColorLink); 2126 if (colors != null) { 2127 setLinkTextColor(colors); 2128 } 2129 2130 int typefaceIndex, styleIndex; 2131 2132 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 2133 TextAppearance_typeface, -1); 2134 styleIndex = appearance.getInt(com.android.internal.R.styleable. 2135 TextAppearance_textStyle, -1); 2136 2137 setTypefaceByIndex(typefaceIndex, styleIndex); 2138 2139 if (appearance.getBoolean(com.android.internal.R.styleable.TextAppearance_textAllCaps, 2140 false)) { 2141 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 2142 } 2143 2144 appearance.recycle(); 2145 } 2146 2147 /** 2148 * @return the size (in pixels) of the default text size in this TextView. 2149 */ 2150 public float getTextSize() { 2151 return mTextPaint.getTextSize(); 2152 } 2153 2154 /** 2155 * Set the default text size to the given value, interpreted as "scaled 2156 * pixel" units. This size is adjusted based on the current density and 2157 * user font size preference. 2158 * 2159 * @param size The scaled pixel size. 2160 * 2161 * @attr ref android.R.styleable#TextView_textSize 2162 */ 2163 @android.view.RemotableViewMethod 2164 public void setTextSize(float size) { 2165 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 2166 } 2167 2168 /** 2169 * Set the default text size to a given unit and value. See {@link 2170 * TypedValue} for the possible dimension units. 2171 * 2172 * @param unit The desired dimension unit. 2173 * @param size The desired size in the given units. 2174 * 2175 * @attr ref android.R.styleable#TextView_textSize 2176 */ 2177 public void setTextSize(int unit, float size) { 2178 Context c = getContext(); 2179 Resources r; 2180 2181 if (c == null) 2182 r = Resources.getSystem(); 2183 else 2184 r = c.getResources(); 2185 2186 setRawTextSize(TypedValue.applyDimension( 2187 unit, size, r.getDisplayMetrics())); 2188 } 2189 2190 private void setRawTextSize(float size) { 2191 if (size != mTextPaint.getTextSize()) { 2192 mTextPaint.setTextSize(size); 2193 2194 if (mLayout != null) { 2195 nullLayouts(); 2196 requestLayout(); 2197 invalidate(); 2198 } 2199 } 2200 } 2201 2202 /** 2203 * @return the extent by which text is currently being stretched 2204 * horizontally. This will usually be 1. 2205 */ 2206 public float getTextScaleX() { 2207 return mTextPaint.getTextScaleX(); 2208 } 2209 2210 /** 2211 * Sets the extent by which text should be stretched horizontally. 2212 * 2213 * @attr ref android.R.styleable#TextView_textScaleX 2214 */ 2215 @android.view.RemotableViewMethod 2216 public void setTextScaleX(float size) { 2217 if (size != mTextPaint.getTextScaleX()) { 2218 mUserSetTextScaleX = true; 2219 mTextPaint.setTextScaleX(size); 2220 2221 if (mLayout != null) { 2222 nullLayouts(); 2223 requestLayout(); 2224 invalidate(); 2225 } 2226 } 2227 } 2228 2229 /** 2230 * Sets the typeface and style in which the text should be displayed. 2231 * Note that not all Typeface families actually have bold and italic 2232 * variants, so you may need to use 2233 * {@link #setTypeface(Typeface, int)} to get the appearance 2234 * that you actually want. 2235 * 2236 * @attr ref android.R.styleable#TextView_typeface 2237 * @attr ref android.R.styleable#TextView_textStyle 2238 */ 2239 public void setTypeface(Typeface tf) { 2240 if (mTextPaint.getTypeface() != tf) { 2241 mTextPaint.setTypeface(tf); 2242 2243 if (mLayout != null) { 2244 nullLayouts(); 2245 requestLayout(); 2246 invalidate(); 2247 } 2248 } 2249 } 2250 2251 /** 2252 * @return the current typeface and style in which the text is being 2253 * displayed. 2254 */ 2255 public Typeface getTypeface() { 2256 return mTextPaint.getTypeface(); 2257 } 2258 2259 /** 2260 * Sets the text color for all the states (normal, selected, 2261 * focused) to be this color. 2262 * 2263 * @attr ref android.R.styleable#TextView_textColor 2264 */ 2265 @android.view.RemotableViewMethod 2266 public void setTextColor(int color) { 2267 mTextColor = ColorStateList.valueOf(color); 2268 updateTextColors(); 2269 } 2270 2271 /** 2272 * Sets the text color. 2273 * 2274 * @attr ref android.R.styleable#TextView_textColor 2275 */ 2276 public void setTextColor(ColorStateList colors) { 2277 if (colors == null) { 2278 throw new NullPointerException(); 2279 } 2280 2281 mTextColor = colors; 2282 updateTextColors(); 2283 } 2284 2285 /** 2286 * Return the set of text colors. 2287 * 2288 * @return Returns the set of text colors. 2289 */ 2290 public final ColorStateList getTextColors() { 2291 return mTextColor; 2292 } 2293 2294 /** 2295 * <p>Return the current color selected for normal text.</p> 2296 * 2297 * @return Returns the current text color. 2298 */ 2299 public final int getCurrentTextColor() { 2300 return mCurTextColor; 2301 } 2302 2303 /** 2304 * Sets the color used to display the selection highlight. 2305 * 2306 * @attr ref android.R.styleable#TextView_textColorHighlight 2307 */ 2308 @android.view.RemotableViewMethod 2309 public void setHighlightColor(int color) { 2310 if (mHighlightColor != color) { 2311 mHighlightColor = color; 2312 invalidate(); 2313 } 2314 } 2315 2316 /** 2317 * Gives the text a shadow of the specified radius and color, the specified 2318 * distance from its normal position. 2319 * 2320 * @attr ref android.R.styleable#TextView_shadowColor 2321 * @attr ref android.R.styleable#TextView_shadowDx 2322 * @attr ref android.R.styleable#TextView_shadowDy 2323 * @attr ref android.R.styleable#TextView_shadowRadius 2324 */ 2325 public void setShadowLayer(float radius, float dx, float dy, int color) { 2326 mTextPaint.setShadowLayer(radius, dx, dy, color); 2327 2328 mShadowRadius = radius; 2329 mShadowDx = dx; 2330 mShadowDy = dy; 2331 2332 invalidate(); 2333 } 2334 2335 /** 2336 * @return the base paint used for the text. Please use this only to 2337 * consult the Paint's properties and not to change them. 2338 */ 2339 public TextPaint getPaint() { 2340 return mTextPaint; 2341 } 2342 2343 /** 2344 * Sets the autolink mask of the text. See {@link 2345 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2346 * possible values. 2347 * 2348 * @attr ref android.R.styleable#TextView_autoLink 2349 */ 2350 @android.view.RemotableViewMethod 2351 public final void setAutoLinkMask(int mask) { 2352 mAutoLinkMask = mask; 2353 } 2354 2355 /** 2356 * Sets whether the movement method will automatically be set to 2357 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2358 * set to nonzero and links are detected in {@link #setText}. 2359 * The default is true. 2360 * 2361 * @attr ref android.R.styleable#TextView_linksClickable 2362 */ 2363 @android.view.RemotableViewMethod 2364 public final void setLinksClickable(boolean whether) { 2365 mLinksClickable = whether; 2366 } 2367 2368 /** 2369 * Returns whether the movement method will automatically be set to 2370 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2371 * set to nonzero and links are detected in {@link #setText}. 2372 * The default is true. 2373 * 2374 * @attr ref android.R.styleable#TextView_linksClickable 2375 */ 2376 public final boolean getLinksClickable() { 2377 return mLinksClickable; 2378 } 2379 2380 /** 2381 * Sets whether the soft input method will be made visible when this 2382 * TextView gets focused. The default is true. 2383 * 2384 * @attr ref android.R.styleable#TextView_softInputShownOnFocus 2385 * @hide 2386 */ 2387 @android.view.RemotableViewMethod 2388 public final void setSoftInputShownOnFocus(boolean show) { 2389 mSoftInputShownOnFocus = show; 2390 } 2391 2392 /** 2393 * Returns whether the soft input method will be made visible when this 2394 * TextView gets focused. The default is true. 2395 * 2396 * @attr ref android.R.styleable#TextView_softInputShownOnFocus 2397 * @hide 2398 */ 2399 public final boolean getSoftInputShownOnFocus() { 2400 return mSoftInputShownOnFocus; 2401 } 2402 2403 /** 2404 * Returns the list of URLSpans attached to the text 2405 * (by {@link Linkify} or otherwise) if any. You can call 2406 * {@link URLSpan#getURL} on them to find where they link to 2407 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 2408 * to find the region of the text they are attached to. 2409 */ 2410 public URLSpan[] getUrls() { 2411 if (mText instanceof Spanned) { 2412 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 2413 } else { 2414 return new URLSpan[0]; 2415 } 2416 } 2417 2418 /** 2419 * Sets the color of the hint text. 2420 * 2421 * @attr ref android.R.styleable#TextView_textColorHint 2422 */ 2423 @android.view.RemotableViewMethod 2424 public final void setHintTextColor(int color) { 2425 mHintTextColor = ColorStateList.valueOf(color); 2426 updateTextColors(); 2427 } 2428 2429 /** 2430 * Sets the color of the hint text. 2431 * 2432 * @attr ref android.R.styleable#TextView_textColorHint 2433 */ 2434 public final void setHintTextColor(ColorStateList colors) { 2435 mHintTextColor = colors; 2436 updateTextColors(); 2437 } 2438 2439 /** 2440 * <p>Return the color used to paint the hint text.</p> 2441 * 2442 * @return Returns the list of hint text colors. 2443 */ 2444 public final ColorStateList getHintTextColors() { 2445 return mHintTextColor; 2446 } 2447 2448 /** 2449 * <p>Return the current color selected to paint the hint text.</p> 2450 * 2451 * @return Returns the current hint text color. 2452 */ 2453 public final int getCurrentHintTextColor() { 2454 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 2455 } 2456 2457 /** 2458 * Sets the color of links in the text. 2459 * 2460 * @attr ref android.R.styleable#TextView_textColorLink 2461 */ 2462 @android.view.RemotableViewMethod 2463 public final void setLinkTextColor(int color) { 2464 mLinkTextColor = ColorStateList.valueOf(color); 2465 updateTextColors(); 2466 } 2467 2468 /** 2469 * Sets the color of links in the text. 2470 * 2471 * @attr ref android.R.styleable#TextView_textColorLink 2472 */ 2473 public final void setLinkTextColor(ColorStateList colors) { 2474 mLinkTextColor = colors; 2475 updateTextColors(); 2476 } 2477 2478 /** 2479 * <p>Returns the color used to paint links in the text.</p> 2480 * 2481 * @return Returns the list of link text colors. 2482 */ 2483 public final ColorStateList getLinkTextColors() { 2484 return mLinkTextColor; 2485 } 2486 2487 /** 2488 * Sets the horizontal alignment of the text and the 2489 * vertical gravity that will be used when there is extra space 2490 * in the TextView beyond what is required for the text itself. 2491 * 2492 * @see android.view.Gravity 2493 * @attr ref android.R.styleable#TextView_gravity 2494 */ 2495 public void setGravity(int gravity) { 2496 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 2497 gravity |= Gravity.START; 2498 } 2499 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2500 gravity |= Gravity.TOP; 2501 } 2502 2503 boolean newLayout = false; 2504 2505 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != 2506 (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK)) { 2507 newLayout = true; 2508 } 2509 2510 if (gravity != mGravity) { 2511 invalidate(); 2512 mLayoutAlignment = null; 2513 } 2514 2515 mGravity = gravity; 2516 2517 if (mLayout != null && newLayout) { 2518 // XXX this is heavy-handed because no actual content changes. 2519 int want = mLayout.getWidth(); 2520 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2521 2522 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2523 mRight - mLeft - getCompoundPaddingLeft() - 2524 getCompoundPaddingRight(), true); 2525 } 2526 } 2527 2528 /** 2529 * Returns the horizontal and vertical alignment of this TextView. 2530 * 2531 * @see android.view.Gravity 2532 * @attr ref android.R.styleable#TextView_gravity 2533 */ 2534 public int getGravity() { 2535 return mGravity; 2536 } 2537 2538 /** 2539 * @return the flags on the Paint being used to display the text. 2540 * @see Paint#getFlags 2541 */ 2542 public int getPaintFlags() { 2543 return mTextPaint.getFlags(); 2544 } 2545 2546 /** 2547 * Sets flags on the Paint being used to display the text and 2548 * reflows the text if they are different from the old flags. 2549 * @see Paint#setFlags 2550 */ 2551 @android.view.RemotableViewMethod 2552 public void setPaintFlags(int flags) { 2553 if (mTextPaint.getFlags() != flags) { 2554 mTextPaint.setFlags(flags); 2555 2556 if (mLayout != null) { 2557 nullLayouts(); 2558 requestLayout(); 2559 invalidate(); 2560 } 2561 } 2562 } 2563 2564 /** 2565 * Sets whether the text should be allowed to be wider than the 2566 * View is. If false, it will be wrapped to the width of the View. 2567 * 2568 * @attr ref android.R.styleable#TextView_scrollHorizontally 2569 */ 2570 public void setHorizontallyScrolling(boolean whether) { 2571 if (mHorizontallyScrolling != whether) { 2572 mHorizontallyScrolling = whether; 2573 2574 if (mLayout != null) { 2575 nullLayouts(); 2576 requestLayout(); 2577 invalidate(); 2578 } 2579 } 2580 } 2581 2582 /** 2583 * Makes the TextView at least this many lines tall. 2584 * 2585 * Setting this value overrides any other (minimum) height setting. A single line TextView will 2586 * set this value to 1. 2587 * 2588 * @attr ref android.R.styleable#TextView_minLines 2589 */ 2590 @android.view.RemotableViewMethod 2591 public void setMinLines(int minlines) { 2592 mMinimum = minlines; 2593 mMinMode = LINES; 2594 2595 requestLayout(); 2596 invalidate(); 2597 } 2598 2599 /** 2600 * Makes the TextView at least this many pixels tall. 2601 * 2602 * Setting this value overrides any other (minimum) number of lines setting. 2603 * 2604 * @attr ref android.R.styleable#TextView_minHeight 2605 */ 2606 @android.view.RemotableViewMethod 2607 public void setMinHeight(int minHeight) { 2608 mMinimum = minHeight; 2609 mMinMode = PIXELS; 2610 2611 requestLayout(); 2612 invalidate(); 2613 } 2614 2615 /** 2616 * Makes the TextView at most this many lines tall. 2617 * 2618 * Setting this value overrides any other (maximum) height setting. 2619 * 2620 * @attr ref android.R.styleable#TextView_maxLines 2621 */ 2622 @android.view.RemotableViewMethod 2623 public void setMaxLines(int maxlines) { 2624 mMaximum = maxlines; 2625 mMaxMode = LINES; 2626 2627 requestLayout(); 2628 invalidate(); 2629 } 2630 2631 /** 2632 * Makes the TextView at most this many pixels tall. This option is mutually exclusive with the 2633 * {@link #setMaxLines(int)} method. 2634 * 2635 * Setting this value overrides any other (maximum) number of lines setting. 2636 * 2637 * @attr ref android.R.styleable#TextView_maxHeight 2638 */ 2639 @android.view.RemotableViewMethod 2640 public void setMaxHeight(int maxHeight) { 2641 mMaximum = maxHeight; 2642 mMaxMode = PIXELS; 2643 2644 requestLayout(); 2645 invalidate(); 2646 } 2647 2648 /** 2649 * Makes the TextView exactly this many lines tall. 2650 * 2651 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2652 * height setting. A single line TextView will set this value to 1. 2653 * 2654 * @attr ref android.R.styleable#TextView_lines 2655 */ 2656 @android.view.RemotableViewMethod 2657 public void setLines(int lines) { 2658 mMaximum = mMinimum = lines; 2659 mMaxMode = mMinMode = LINES; 2660 2661 requestLayout(); 2662 invalidate(); 2663 } 2664 2665 /** 2666 * Makes the TextView exactly this many pixels tall. 2667 * You could do the same thing by specifying this number in the 2668 * LayoutParams. 2669 * 2670 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2671 * height setting. 2672 * 2673 * @attr ref android.R.styleable#TextView_height 2674 */ 2675 @android.view.RemotableViewMethod 2676 public void setHeight(int pixels) { 2677 mMaximum = mMinimum = pixels; 2678 mMaxMode = mMinMode = PIXELS; 2679 2680 requestLayout(); 2681 invalidate(); 2682 } 2683 2684 /** 2685 * Makes the TextView at least this many ems wide 2686 * 2687 * @attr ref android.R.styleable#TextView_minEms 2688 */ 2689 @android.view.RemotableViewMethod 2690 public void setMinEms(int minems) { 2691 mMinWidth = minems; 2692 mMinWidthMode = EMS; 2693 2694 requestLayout(); 2695 invalidate(); 2696 } 2697 2698 /** 2699 * Makes the TextView at least this many pixels wide 2700 * 2701 * @attr ref android.R.styleable#TextView_minWidth 2702 */ 2703 @android.view.RemotableViewMethod 2704 public void setMinWidth(int minpixels) { 2705 mMinWidth = minpixels; 2706 mMinWidthMode = PIXELS; 2707 2708 requestLayout(); 2709 invalidate(); 2710 } 2711 2712 /** 2713 * Makes the TextView at most this many ems wide 2714 * 2715 * @attr ref android.R.styleable#TextView_maxEms 2716 */ 2717 @android.view.RemotableViewMethod 2718 public void setMaxEms(int maxems) { 2719 mMaxWidth = maxems; 2720 mMaxWidthMode = EMS; 2721 2722 requestLayout(); 2723 invalidate(); 2724 } 2725 2726 /** 2727 * Makes the TextView at most this many pixels wide 2728 * 2729 * @attr ref android.R.styleable#TextView_maxWidth 2730 */ 2731 @android.view.RemotableViewMethod 2732 public void setMaxWidth(int maxpixels) { 2733 mMaxWidth = maxpixels; 2734 mMaxWidthMode = PIXELS; 2735 2736 requestLayout(); 2737 invalidate(); 2738 } 2739 2740 /** 2741 * Makes the TextView exactly this many ems wide 2742 * 2743 * @attr ref android.R.styleable#TextView_ems 2744 */ 2745 @android.view.RemotableViewMethod 2746 public void setEms(int ems) { 2747 mMaxWidth = mMinWidth = ems; 2748 mMaxWidthMode = mMinWidthMode = EMS; 2749 2750 requestLayout(); 2751 invalidate(); 2752 } 2753 2754 /** 2755 * Makes the TextView exactly this many pixels wide. 2756 * You could do the same thing by specifying this number in the 2757 * LayoutParams. 2758 * 2759 * @attr ref android.R.styleable#TextView_width 2760 */ 2761 @android.view.RemotableViewMethod 2762 public void setWidth(int pixels) { 2763 mMaxWidth = mMinWidth = pixels; 2764 mMaxWidthMode = mMinWidthMode = PIXELS; 2765 2766 requestLayout(); 2767 invalidate(); 2768 } 2769 2770 2771 /** 2772 * Sets line spacing for this TextView. Each line will have its height 2773 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2774 * 2775 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2776 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2777 */ 2778 public void setLineSpacing(float add, float mult) { 2779 if (mSpacingAdd != add || mSpacingMult != mult) { 2780 mSpacingAdd = add; 2781 mSpacingMult = mult; 2782 2783 if (mLayout != null) { 2784 nullLayouts(); 2785 requestLayout(); 2786 invalidate(); 2787 } 2788 } 2789 } 2790 2791 /** 2792 * Convenience method: Append the specified text to the TextView's 2793 * display buffer, upgrading it to BufferType.EDITABLE if it was 2794 * not already editable. 2795 */ 2796 public final void append(CharSequence text) { 2797 append(text, 0, text.length()); 2798 } 2799 2800 /** 2801 * Convenience method: Append the specified text slice to the TextView's 2802 * display buffer, upgrading it to BufferType.EDITABLE if it was 2803 * not already editable. 2804 */ 2805 public void append(CharSequence text, int start, int end) { 2806 if (!(mText instanceof Editable)) { 2807 setText(mText, BufferType.EDITABLE); 2808 } 2809 2810 ((Editable) mText).append(text, start, end); 2811 } 2812 2813 private void updateTextColors() { 2814 boolean inval = false; 2815 int color = mTextColor.getColorForState(getDrawableState(), 0); 2816 if (color != mCurTextColor) { 2817 mCurTextColor = color; 2818 inval = true; 2819 } 2820 if (mLinkTextColor != null) { 2821 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2822 if (color != mTextPaint.linkColor) { 2823 mTextPaint.linkColor = color; 2824 inval = true; 2825 } 2826 } 2827 if (mHintTextColor != null) { 2828 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2829 if (color != mCurHintTextColor && mText.length() == 0) { 2830 mCurHintTextColor = color; 2831 inval = true; 2832 } 2833 } 2834 if (inval) { 2835 invalidate(); 2836 } 2837 } 2838 2839 @Override 2840 protected void drawableStateChanged() { 2841 super.drawableStateChanged(); 2842 if (mTextColor != null && mTextColor.isStateful() 2843 || (mHintTextColor != null && mHintTextColor.isStateful()) 2844 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2845 updateTextColors(); 2846 } 2847 2848 final Drawables dr = mDrawables; 2849 if (dr != null) { 2850 int[] state = getDrawableState(); 2851 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2852 dr.mDrawableTop.setState(state); 2853 } 2854 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2855 dr.mDrawableBottom.setState(state); 2856 } 2857 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2858 dr.mDrawableLeft.setState(state); 2859 } 2860 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2861 dr.mDrawableRight.setState(state); 2862 } 2863 if (dr.mDrawableStart != null && dr.mDrawableStart.isStateful()) { 2864 dr.mDrawableStart.setState(state); 2865 } 2866 if (dr.mDrawableEnd != null && dr.mDrawableEnd.isStateful()) { 2867 dr.mDrawableEnd.setState(state); 2868 } 2869 } 2870 } 2871 2872 /** 2873 * User interface state that is stored by TextView for implementing 2874 * {@link View#onSaveInstanceState}. 2875 */ 2876 public static class SavedState extends BaseSavedState { 2877 int selStart; 2878 int selEnd; 2879 CharSequence text; 2880 boolean frozenWithFocus; 2881 CharSequence error; 2882 2883 SavedState(Parcelable superState) { 2884 super(superState); 2885 } 2886 2887 @Override 2888 public void writeToParcel(Parcel out, int flags) { 2889 super.writeToParcel(out, flags); 2890 out.writeInt(selStart); 2891 out.writeInt(selEnd); 2892 out.writeInt(frozenWithFocus ? 1 : 0); 2893 TextUtils.writeToParcel(text, out, flags); 2894 2895 if (error == null) { 2896 out.writeInt(0); 2897 } else { 2898 out.writeInt(1); 2899 TextUtils.writeToParcel(error, out, flags); 2900 } 2901 } 2902 2903 @Override 2904 public String toString() { 2905 String str = "TextView.SavedState{" 2906 + Integer.toHexString(System.identityHashCode(this)) 2907 + " start=" + selStart + " end=" + selEnd; 2908 if (text != null) { 2909 str += " text=" + text; 2910 } 2911 return str + "}"; 2912 } 2913 2914 @SuppressWarnings("hiding") 2915 public static final Parcelable.Creator<SavedState> CREATOR 2916 = new Parcelable.Creator<SavedState>() { 2917 public SavedState createFromParcel(Parcel in) { 2918 return new SavedState(in); 2919 } 2920 2921 public SavedState[] newArray(int size) { 2922 return new SavedState[size]; 2923 } 2924 }; 2925 2926 private SavedState(Parcel in) { 2927 super(in); 2928 selStart = in.readInt(); 2929 selEnd = in.readInt(); 2930 frozenWithFocus = (in.readInt() != 0); 2931 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2932 2933 if (in.readInt() != 0) { 2934 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2935 } 2936 } 2937 } 2938 2939 @Override 2940 public Parcelable onSaveInstanceState() { 2941 Parcelable superState = super.onSaveInstanceState(); 2942 2943 // Save state if we are forced to 2944 boolean save = mFreezesText; 2945 int start = 0; 2946 int end = 0; 2947 2948 if (mText != null) { 2949 start = getSelectionStart(); 2950 end = getSelectionEnd(); 2951 if (start >= 0 || end >= 0) { 2952 // Or save state if there is a selection 2953 save = true; 2954 } 2955 } 2956 2957 if (save) { 2958 SavedState ss = new SavedState(superState); 2959 // XXX Should also save the current scroll position! 2960 ss.selStart = start; 2961 ss.selEnd = end; 2962 2963 if (mText instanceof Spanned) { 2964 /* 2965 * Calling setText() strips off any ChangeWatchers; 2966 * strip them now to avoid leaking references. 2967 * But do it to a copy so that if there are any 2968 * further changes to the text of this view, it 2969 * won't get into an inconsistent state. 2970 */ 2971 2972 Spannable sp = new SpannableString(mText); 2973 2974 for (ChangeWatcher cw : sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2975 sp.removeSpan(cw); 2976 } 2977 2978 removeMisspelledSpans(sp); 2979 sp.removeSpan(mSuggestionRangeSpan); 2980 2981 ss.text = sp; 2982 } else { 2983 ss.text = mText.toString(); 2984 } 2985 2986 if (isFocused() && start >= 0 && end >= 0) { 2987 ss.frozenWithFocus = true; 2988 } 2989 2990 ss.error = mError; 2991 2992 return ss; 2993 } 2994 2995 return superState; 2996 } 2997 2998 void removeMisspelledSpans(Spannable spannable) { 2999 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, spannable.length(), 3000 SuggestionSpan.class); 3001 for (int i = 0; i < suggestionSpans.length; i++) { 3002 int flags = suggestionSpans[i].getFlags(); 3003 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 3004 && (flags & SuggestionSpan.FLAG_MISSPELLED) != 0) { 3005 spannable.removeSpan(suggestionSpans[i]); 3006 } 3007 } 3008 } 3009 3010 @Override 3011 public void onRestoreInstanceState(Parcelable state) { 3012 if (!(state instanceof SavedState)) { 3013 super.onRestoreInstanceState(state); 3014 return; 3015 } 3016 3017 SavedState ss = (SavedState)state; 3018 super.onRestoreInstanceState(ss.getSuperState()); 3019 3020 // XXX restore buffer type too, as well as lots of other stuff 3021 if (ss.text != null) { 3022 setText(ss.text); 3023 } 3024 3025 if (ss.selStart >= 0 && ss.selEnd >= 0) { 3026 if (mText instanceof Spannable) { 3027 int len = mText.length(); 3028 3029 if (ss.selStart > len || ss.selEnd > len) { 3030 String restored = ""; 3031 3032 if (ss.text != null) { 3033 restored = "(restored) "; 3034 } 3035 3036 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 3037 "/" + ss.selEnd + " out of range for " + restored + 3038 "text " + mText); 3039 } else { 3040 Selection.setSelection((Spannable) mText, ss.selStart, 3041 ss.selEnd); 3042 3043 if (ss.frozenWithFocus) { 3044 mFrozenWithFocus = true; 3045 } 3046 } 3047 } 3048 } 3049 3050 if (ss.error != null) { 3051 final CharSequence error = ss.error; 3052 // Display the error later, after the first layout pass 3053 post(new Runnable() { 3054 public void run() { 3055 setError(error); 3056 } 3057 }); 3058 } 3059 } 3060 3061 /** 3062 * Control whether this text view saves its entire text contents when 3063 * freezing to an icicle, in addition to dynamic state such as cursor 3064 * position. By default this is false, not saving the text. Set to true 3065 * if the text in the text view is not being saved somewhere else in 3066 * persistent storage (such as in a content provider) so that if the 3067 * view is later thawed the user will not lose their data. 3068 * 3069 * @param freezesText Controls whether a frozen icicle should include the 3070 * entire text data: true to include it, false to not. 3071 * 3072 * @attr ref android.R.styleable#TextView_freezesText 3073 */ 3074 @android.view.RemotableViewMethod 3075 public void setFreezesText(boolean freezesText) { 3076 mFreezesText = freezesText; 3077 } 3078 3079 /** 3080 * Return whether this text view is including its entire text contents 3081 * in frozen icicles. 3082 * 3083 * @return Returns true if text is included, false if it isn't. 3084 * 3085 * @see #setFreezesText 3086 */ 3087 public boolean getFreezesText() { 3088 return mFreezesText; 3089 } 3090 3091 /////////////////////////////////////////////////////////////////////////// 3092 3093 /** 3094 * Sets the Factory used to create new Editables. 3095 */ 3096 public final void setEditableFactory(Editable.Factory factory) { 3097 mEditableFactory = factory; 3098 setText(mText); 3099 } 3100 3101 /** 3102 * Sets the Factory used to create new Spannables. 3103 */ 3104 public final void setSpannableFactory(Spannable.Factory factory) { 3105 mSpannableFactory = factory; 3106 setText(mText); 3107 } 3108 3109 /** 3110 * Sets the string value of the TextView. TextView <em>does not</em> accept 3111 * HTML-like formatting, which you can do with text strings in XML resource files. 3112 * To style your strings, attach android.text.style.* objects to a 3113 * {@link android.text.SpannableString SpannableString}, or see the 3114 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 3115 * Available Resource Types</a> documentation for an example of setting 3116 * formatted text in the XML resource file. 3117 * 3118 * @attr ref android.R.styleable#TextView_text 3119 */ 3120 @android.view.RemotableViewMethod 3121 public final void setText(CharSequence text) { 3122 setText(text, mBufferType); 3123 } 3124 3125 /** 3126 * Like {@link #setText(CharSequence)}, 3127 * except that the cursor position (if any) is retained in the new text. 3128 * 3129 * @param text The new text to place in the text view. 3130 * 3131 * @see #setText(CharSequence) 3132 */ 3133 @android.view.RemotableViewMethod 3134 public final void setTextKeepState(CharSequence text) { 3135 setTextKeepState(text, mBufferType); 3136 } 3137 3138 /** 3139 * Sets the text that this TextView is to display (see 3140 * {@link #setText(CharSequence)}) and also sets whether it is stored 3141 * in a styleable/spannable buffer and whether it is editable. 3142 * 3143 * @attr ref android.R.styleable#TextView_text 3144 * @attr ref android.R.styleable#TextView_bufferType 3145 */ 3146 public void setText(CharSequence text, BufferType type) { 3147 setText(text, type, true, 0); 3148 3149 if (mCharWrapper != null) { 3150 mCharWrapper.mChars = null; 3151 } 3152 } 3153 3154 private void setText(CharSequence text, BufferType type, 3155 boolean notifyBefore, int oldlen) { 3156 if (text == null) { 3157 text = ""; 3158 } 3159 3160 // If suggestions are not enabled, remove the suggestion spans from the text 3161 if (!isSuggestionsEnabled()) { 3162 text = removeSuggestionSpans(text); 3163 } 3164 3165 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 3166 3167 if (text instanceof Spanned && 3168 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 3169 if (ViewConfiguration.get(mContext).isFadingMarqueeEnabled()) { 3170 setHorizontalFadingEdgeEnabled(true); 3171 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 3172 } else { 3173 setHorizontalFadingEdgeEnabled(false); 3174 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 3175 } 3176 setEllipsize(TextUtils.TruncateAt.MARQUEE); 3177 } 3178 3179 int n = mFilters.length; 3180 for (int i = 0; i < n; i++) { 3181 CharSequence out = mFilters[i].filter(text, 0, text.length(), 3182 EMPTY_SPANNED, 0, 0); 3183 if (out != null) { 3184 text = out; 3185 } 3186 } 3187 3188 if (notifyBefore) { 3189 if (mText != null) { 3190 oldlen = mText.length(); 3191 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 3192 } else { 3193 sendBeforeTextChanged("", 0, 0, text.length()); 3194 } 3195 } 3196 3197 boolean needEditableForNotification = false; 3198 boolean startSpellCheck = false; 3199 3200 if (mListeners != null && mListeners.size() != 0) { 3201 needEditableForNotification = true; 3202 } 3203 3204 if (type == BufferType.EDITABLE || mInput != null || needEditableForNotification) { 3205 Editable t = mEditableFactory.newEditable(text); 3206 text = t; 3207 setFilters(t, mFilters); 3208 InputMethodManager imm = InputMethodManager.peekInstance(); 3209 if (imm != null) imm.restartInput(this); 3210 startSpellCheck = true; 3211 } else if (type == BufferType.SPANNABLE || mMovement != null) { 3212 text = mSpannableFactory.newSpannable(text); 3213 } else if (!(text instanceof CharWrapper)) { 3214 text = TextUtils.stringOrSpannedString(text); 3215 } 3216 3217 if (mAutoLinkMask != 0) { 3218 Spannable s2; 3219 3220 if (type == BufferType.EDITABLE || text instanceof Spannable) { 3221 s2 = (Spannable) text; 3222 } else { 3223 s2 = mSpannableFactory.newSpannable(text); 3224 } 3225 3226 if (Linkify.addLinks(s2, mAutoLinkMask)) { 3227 text = s2; 3228 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 3229 3230 /* 3231 * We must go ahead and set the text before changing the 3232 * movement method, because setMovementMethod() may call 3233 * setText() again to try to upgrade the buffer type. 3234 */ 3235 mText = text; 3236 3237 // Do not change the movement method for text that support text selection as it 3238 // would prevent an arbitrary cursor displacement. 3239 if (mLinksClickable && !textCanBeSelected()) { 3240 setMovementMethod(LinkMovementMethod.getInstance()); 3241 } 3242 } 3243 } 3244 3245 mBufferType = type; 3246 mText = text; 3247 3248 if (mTransformation == null) { 3249 mTransformed = text; 3250 } else { 3251 mTransformed = mTransformation.getTransformation(text, this); 3252 } 3253 3254 final int textLength = text.length(); 3255 3256 if (text instanceof Spannable && !mAllowTransformationLengthChange) { 3257 Spannable sp = (Spannable) text; 3258 3259 // Remove any ChangeWatchers that might have come 3260 // from other TextViews. 3261 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 3262 final int count = watchers.length; 3263 for (int i = 0; i < count; i++) 3264 sp.removeSpan(watchers[i]); 3265 3266 if (mChangeWatcher == null) 3267 mChangeWatcher = new ChangeWatcher(); 3268 3269 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 3270 (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 3271 3272 if (mInput != null) { 3273 sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 3274 } 3275 3276 if (mTransformation != null) { 3277 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 3278 } 3279 3280 if (mMovement != null) { 3281 mMovement.initialize(this, (Spannable) text); 3282 3283 /* 3284 * Initializing the movement method will have set the 3285 * selection, so reset mSelectionMoved to keep that from 3286 * interfering with the normal on-focus selection-setting. 3287 */ 3288 mSelectionMoved = false; 3289 } 3290 } 3291 3292 if (mLayout != null) { 3293 checkForRelayout(); 3294 } 3295 3296 sendOnTextChanged(text, 0, oldlen, textLength); 3297 onTextChanged(text, 0, oldlen, textLength); 3298 3299 if (startSpellCheck && mSpellChecker != null) { 3300 // This view has to have been previously attached for mSpellChecker to exist 3301 updateSpellCheckSpans(0, textLength); 3302 } 3303 3304 if (needEditableForNotification) { 3305 sendAfterTextChanged((Editable) text); 3306 } 3307 3308 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 3309 prepareCursorControllers(); 3310 } 3311 3312 /** 3313 * Sets the TextView to display the specified slice of the specified 3314 * char array. You must promise that you will not change the contents 3315 * of the array except for right before another call to setText(), 3316 * since the TextView has no way to know that the text 3317 * has changed and that it needs to invalidate and re-layout. 3318 */ 3319 public final void setText(char[] text, int start, int len) { 3320 int oldlen = 0; 3321 3322 if (start < 0 || len < 0 || start + len > text.length) { 3323 throw new IndexOutOfBoundsException(start + ", " + len); 3324 } 3325 3326 /* 3327 * We must do the before-notification here ourselves because if 3328 * the old text is a CharWrapper we destroy it before calling 3329 * into the normal path. 3330 */ 3331 if (mText != null) { 3332 oldlen = mText.length(); 3333 sendBeforeTextChanged(mText, 0, oldlen, len); 3334 } else { 3335 sendBeforeTextChanged("", 0, 0, len); 3336 } 3337 3338 if (mCharWrapper == null) { 3339 mCharWrapper = new CharWrapper(text, start, len); 3340 } else { 3341 mCharWrapper.set(text, start, len); 3342 } 3343 3344 setText(mCharWrapper, mBufferType, false, oldlen); 3345 } 3346 3347 private static class CharWrapper implements CharSequence, GetChars, GraphicsOperations { 3348 private char[] mChars; 3349 private int mStart, mLength; 3350 3351 public CharWrapper(char[] chars, int start, int len) { 3352 mChars = chars; 3353 mStart = start; 3354 mLength = len; 3355 } 3356 3357 /* package */ void set(char[] chars, int start, int len) { 3358 mChars = chars; 3359 mStart = start; 3360 mLength = len; 3361 } 3362 3363 public int length() { 3364 return mLength; 3365 } 3366 3367 public char charAt(int off) { 3368 return mChars[off + mStart]; 3369 } 3370 3371 @Override 3372 public String toString() { 3373 return new String(mChars, mStart, mLength); 3374 } 3375 3376 public CharSequence subSequence(int start, int end) { 3377 if (start < 0 || end < 0 || start > mLength || end > mLength) { 3378 throw new IndexOutOfBoundsException(start + ", " + end); 3379 } 3380 3381 return new String(mChars, start + mStart, end - start); 3382 } 3383 3384 public void getChars(int start, int end, char[] buf, int off) { 3385 if (start < 0 || end < 0 || start > mLength || end > mLength) { 3386 throw new IndexOutOfBoundsException(start + ", " + end); 3387 } 3388 3389 System.arraycopy(mChars, start + mStart, buf, off, end - start); 3390 } 3391 3392 public void drawText(Canvas c, int start, int end, 3393 float x, float y, Paint p) { 3394 c.drawText(mChars, start + mStart, end - start, x, y, p); 3395 } 3396 3397 public void drawTextRun(Canvas c, int start, int end, 3398 int contextStart, int contextEnd, float x, float y, int flags, Paint p) { 3399 int count = end - start; 3400 int contextCount = contextEnd - contextStart; 3401 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 3402 contextCount, x, y, flags, p); 3403 } 3404 3405 public float measureText(int start, int end, Paint p) { 3406 return p.measureText(mChars, start + mStart, end - start); 3407 } 3408 3409 public int getTextWidths(int start, int end, float[] widths, Paint p) { 3410 return p.getTextWidths(mChars, start + mStart, end - start, widths); 3411 } 3412 3413 public float getTextRunAdvances(int start, int end, int contextStart, 3414 int contextEnd, int flags, float[] advances, int advancesIndex, 3415 Paint p) { 3416 int count = end - start; 3417 int contextCount = contextEnd - contextStart; 3418 return p.getTextRunAdvances(mChars, start + mStart, count, 3419 contextStart + mStart, contextCount, flags, advances, 3420 advancesIndex); 3421 } 3422 3423 public float getTextRunAdvances(int start, int end, int contextStart, 3424 int contextEnd, int flags, float[] advances, int advancesIndex, 3425 Paint p, int reserved) { 3426 int count = end - start; 3427 int contextCount = contextEnd - contextStart; 3428 return p.getTextRunAdvances(mChars, start + mStart, count, 3429 contextStart + mStart, contextCount, flags, advances, 3430 advancesIndex, reserved); 3431 } 3432 3433 public int getTextRunCursor(int contextStart, int contextEnd, int flags, 3434 int offset, int cursorOpt, Paint p) { 3435 int contextCount = contextEnd - contextStart; 3436 return p.getTextRunCursor(mChars, contextStart + mStart, 3437 contextCount, flags, offset + mStart, cursorOpt); 3438 } 3439 } 3440 3441 /** 3442 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 3443 * except that the cursor position (if any) is retained in the new text. 3444 * 3445 * @see #setText(CharSequence, android.widget.TextView.BufferType) 3446 */ 3447 public final void setTextKeepState(CharSequence text, BufferType type) { 3448 int start = getSelectionStart(); 3449 int end = getSelectionEnd(); 3450 int len = text.length(); 3451 3452 setText(text, type); 3453 3454 if (start >= 0 || end >= 0) { 3455 if (mText instanceof Spannable) { 3456 Selection.setSelection((Spannable) mText, 3457 Math.max(0, Math.min(start, len)), 3458 Math.max(0, Math.min(end, len))); 3459 } 3460 } 3461 } 3462 3463 @android.view.RemotableViewMethod 3464 public final void setText(int resid) { 3465 setText(getContext().getResources().getText(resid)); 3466 } 3467 3468 public final void setText(int resid, BufferType type) { 3469 setText(getContext().getResources().getText(resid), type); 3470 } 3471 3472 /** 3473 * Sets the text to be displayed when the text of the TextView is empty. 3474 * Null means to use the normal empty text. The hint does not currently 3475 * participate in determining the size of the view. 3476 * 3477 * @attr ref android.R.styleable#TextView_hint 3478 */ 3479 @android.view.RemotableViewMethod 3480 public final void setHint(CharSequence hint) { 3481 mHint = TextUtils.stringOrSpannedString(hint); 3482 3483 if (mLayout != null) { 3484 checkForRelayout(); 3485 } 3486 3487 if (mText.length() == 0) { 3488 invalidate(); 3489 } 3490 } 3491 3492 /** 3493 * Sets the text to be displayed when the text of the TextView is empty, 3494 * from a resource. 3495 * 3496 * @attr ref android.R.styleable#TextView_hint 3497 */ 3498 @android.view.RemotableViewMethod 3499 public final void setHint(int resid) { 3500 setHint(getContext().getResources().getText(resid)); 3501 } 3502 3503 /** 3504 * Returns the hint that is displayed when the text of the TextView 3505 * is empty. 3506 * 3507 * @attr ref android.R.styleable#TextView_hint 3508 */ 3509 @ViewDebug.CapturedViewProperty 3510 public CharSequence getHint() { 3511 return mHint; 3512 } 3513 3514 private static boolean isMultilineInputType(int type) { 3515 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 3516 (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 3517 } 3518 3519 /** 3520 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 3521 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 3522 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 3523 * then a soft keyboard will not be displayed for this text view. 3524 * 3525 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 3526 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 3527 * type. 3528 * 3529 * @see #getInputType() 3530 * @see #setRawInputType(int) 3531 * @see android.text.InputType 3532 * @attr ref android.R.styleable#TextView_inputType 3533 */ 3534 public void setInputType(int type) { 3535 final boolean wasPassword = isPasswordInputType(mInputType); 3536 final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType); 3537 setInputType(type, false); 3538 final boolean isPassword = isPasswordInputType(type); 3539 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 3540 boolean forceUpdate = false; 3541 if (isPassword) { 3542 setTransformationMethod(PasswordTransformationMethod.getInstance()); 3543 setTypefaceByIndex(MONOSPACE, 0); 3544 } else if (isVisiblePassword) { 3545 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3546 forceUpdate = true; 3547 } 3548 setTypefaceByIndex(MONOSPACE, 0); 3549 } else if (wasPassword || wasVisiblePassword) { 3550 // not in password mode, clean up typeface and transformation 3551 setTypefaceByIndex(-1, -1); 3552 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3553 forceUpdate = true; 3554 } 3555 } 3556 3557 boolean singleLine = !isMultilineInputType(type); 3558 3559 // We need to update the single line mode if it has changed or we 3560 // were previously in password mode. 3561 if (mSingleLine != singleLine || forceUpdate) { 3562 // Change single line mode, but only change the transformation if 3563 // we are not in password mode. 3564 applySingleLine(singleLine, !isPassword, true); 3565 } 3566 3567 if (!isSuggestionsEnabled()) { 3568 mText = removeSuggestionSpans(mText); 3569 } 3570 3571 InputMethodManager imm = InputMethodManager.peekInstance(); 3572 if (imm != null) imm.restartInput(this); 3573 } 3574 3575 /** 3576 * It would be better to rely on the input type for everything. A password inputType should have 3577 * a password transformation. We should hence use isPasswordInputType instead of this method. 3578 * 3579 * We should: 3580 * - Call setInputType in setKeyListener instead of changing the input type directly (which 3581 * would install the correct transformation). 3582 * - Refuse the installation of a non-password transformation in setTransformation if the input 3583 * type is password. 3584 * 3585 * However, this is like this for legacy reasons and we cannot break existing apps. This method 3586 * is useful since it matches what the user can see (obfuscated text or not). 3587 * 3588 * @return true if the current transformation method is of the password type. 3589 */ 3590 private boolean hasPasswordTransformationMethod() { 3591 return mTransformation instanceof PasswordTransformationMethod; 3592 } 3593 3594 private static boolean isPasswordInputType(int inputType) { 3595 final int variation = 3596 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3597 return variation 3598 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 3599 || variation 3600 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 3601 || variation 3602 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 3603 } 3604 3605 private static boolean isVisiblePasswordInputType(int inputType) { 3606 final int variation = 3607 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3608 return variation 3609 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 3610 } 3611 3612 /** 3613 * Directly change the content type integer of the text view, without 3614 * modifying any other state. 3615 * @see #setInputType(int) 3616 * @see android.text.InputType 3617 * @attr ref android.R.styleable#TextView_inputType 3618 */ 3619 public void setRawInputType(int type) { 3620 mInputType = type; 3621 } 3622 3623 private void setInputType(int type, boolean direct) { 3624 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 3625 KeyListener input; 3626 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 3627 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 3628 TextKeyListener.Capitalize cap; 3629 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 3630 cap = TextKeyListener.Capitalize.CHARACTERS; 3631 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 3632 cap = TextKeyListener.Capitalize.WORDS; 3633 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 3634 cap = TextKeyListener.Capitalize.SENTENCES; 3635 } else { 3636 cap = TextKeyListener.Capitalize.NONE; 3637 } 3638 input = TextKeyListener.getInstance(autotext, cap); 3639 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 3640 input = DigitsKeyListener.getInstance( 3641 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 3642 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 3643 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 3644 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 3645 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 3646 input = DateKeyListener.getInstance(); 3647 break; 3648 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 3649 input = TimeKeyListener.getInstance(); 3650 break; 3651 default: 3652 input = DateTimeKeyListener.getInstance(); 3653 break; 3654 } 3655 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 3656 input = DialerKeyListener.getInstance(); 3657 } else { 3658 input = TextKeyListener.getInstance(); 3659 } 3660 setRawInputType(type); 3661 if (direct) mInput = input; 3662 else { 3663 setKeyListenerOnly(input); 3664 } 3665 } 3666 3667 /** 3668 * Get the type of the content. 3669 * 3670 * @see #setInputType(int) 3671 * @see android.text.InputType 3672 */ 3673 public int getInputType() { 3674 return mInputType; 3675 } 3676 3677 /** 3678 * Change the editor type integer associated with the text view, which 3679 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3680 * has focus. 3681 * @see #getImeOptions 3682 * @see android.view.inputmethod.EditorInfo 3683 * @attr ref android.R.styleable#TextView_imeOptions 3684 */ 3685 public void setImeOptions(int imeOptions) { 3686 if (mInputContentType == null) { 3687 mInputContentType = new InputContentType(); 3688 } 3689 mInputContentType.imeOptions = imeOptions; 3690 } 3691 3692 /** 3693 * Get the type of the IME editor. 3694 * 3695 * @see #setImeOptions(int) 3696 * @see android.view.inputmethod.EditorInfo 3697 */ 3698 public int getImeOptions() { 3699 return mInputContentType != null 3700 ? mInputContentType.imeOptions : EditorInfo.IME_NULL; 3701 } 3702 3703 /** 3704 * Change the custom IME action associated with the text view, which 3705 * will be reported to an IME with {@link EditorInfo#actionLabel} 3706 * and {@link EditorInfo#actionId} when it has focus. 3707 * @see #getImeActionLabel 3708 * @see #getImeActionId 3709 * @see android.view.inputmethod.EditorInfo 3710 * @attr ref android.R.styleable#TextView_imeActionLabel 3711 * @attr ref android.R.styleable#TextView_imeActionId 3712 */ 3713 public void setImeActionLabel(CharSequence label, int actionId) { 3714 if (mInputContentType == null) { 3715 mInputContentType = new InputContentType(); 3716 } 3717 mInputContentType.imeActionLabel = label; 3718 mInputContentType.imeActionId = actionId; 3719 } 3720 3721 /** 3722 * Get the IME action label previous set with {@link #setImeActionLabel}. 3723 * 3724 * @see #setImeActionLabel 3725 * @see android.view.inputmethod.EditorInfo 3726 */ 3727 public CharSequence getImeActionLabel() { 3728 return mInputContentType != null 3729 ? mInputContentType.imeActionLabel : null; 3730 } 3731 3732 /** 3733 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3734 * 3735 * @see #setImeActionLabel 3736 * @see android.view.inputmethod.EditorInfo 3737 */ 3738 public int getImeActionId() { 3739 return mInputContentType != null 3740 ? mInputContentType.imeActionId : 0; 3741 } 3742 3743 /** 3744 * Set a special listener to be called when an action is performed 3745 * on the text view. This will be called when the enter key is pressed, 3746 * or when an action supplied to the IME is selected by the user. Setting 3747 * this means that the normal hard key event will not insert a newline 3748 * into the text view, even if it is multi-line; holding down the ALT 3749 * modifier will, however, allow the user to insert a newline character. 3750 */ 3751 public void setOnEditorActionListener(OnEditorActionListener l) { 3752 if (mInputContentType == null) { 3753 mInputContentType = new InputContentType(); 3754 } 3755 mInputContentType.onEditorActionListener = l; 3756 } 3757 3758 /** 3759 * Called when an attached input method calls 3760 * {@link InputConnection#performEditorAction(int) 3761 * InputConnection.performEditorAction()} 3762 * for this text view. The default implementation will call your action 3763 * listener supplied to {@link #setOnEditorActionListener}, or perform 3764 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3765 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 3766 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 3767 * EditorInfo.IME_ACTION_DONE}. 3768 * 3769 * <p>For backwards compatibility, if no IME options have been set and the 3770 * text view would not normally advance focus on enter, then 3771 * the NEXT and DONE actions received here will be turned into an enter 3772 * key down/up pair to go through the normal key handling. 3773 * 3774 * @param actionCode The code of the action being performed. 3775 * 3776 * @see #setOnEditorActionListener 3777 */ 3778 public void onEditorAction(int actionCode) { 3779 final InputContentType ict = mInputContentType; 3780 if (ict != null) { 3781 if (ict.onEditorActionListener != null) { 3782 if (ict.onEditorActionListener.onEditorAction(this, 3783 actionCode, null)) { 3784 return; 3785 } 3786 } 3787 3788 // This is the handling for some default action. 3789 // Note that for backwards compatibility we don't do this 3790 // default handling if explicit ime options have not been given, 3791 // instead turning this into the normal enter key codes that an 3792 // app may be expecting. 3793 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3794 View v = focusSearch(FOCUS_FORWARD); 3795 if (v != null) { 3796 if (!v.requestFocus(FOCUS_FORWARD)) { 3797 throw new IllegalStateException("focus search returned a view " + 3798 "that wasn't able to take focus!"); 3799 } 3800 } 3801 return; 3802 3803 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 3804 View v = focusSearch(FOCUS_BACKWARD); 3805 if (v != null) { 3806 if (!v.requestFocus(FOCUS_BACKWARD)) { 3807 throw new IllegalStateException("focus search returned a view " + 3808 "that wasn't able to take focus!"); 3809 } 3810 } 3811 return; 3812 3813 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3814 InputMethodManager imm = InputMethodManager.peekInstance(); 3815 if (imm != null && imm.isActive(this)) { 3816 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3817 } 3818 clearFocus(); 3819 return; 3820 } 3821 } 3822 3823 Handler h = getHandler(); 3824 if (h != null) { 3825 long eventTime = SystemClock.uptimeMillis(); 3826 h.sendMessage(h.obtainMessage(ViewRootImpl.DISPATCH_KEY_FROM_IME, 3827 new KeyEvent(eventTime, eventTime, 3828 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 3829 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3830 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3831 | KeyEvent.FLAG_EDITOR_ACTION))); 3832 h.sendMessage(h.obtainMessage(ViewRootImpl.DISPATCH_KEY_FROM_IME, 3833 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3834 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 3835 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3836 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3837 | KeyEvent.FLAG_EDITOR_ACTION))); 3838 } 3839 } 3840 3841 /** 3842 * Set the private content type of the text, which is the 3843 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3844 * field that will be filled in when creating an input connection. 3845 * 3846 * @see #getPrivateImeOptions() 3847 * @see EditorInfo#privateImeOptions 3848 * @attr ref android.R.styleable#TextView_privateImeOptions 3849 */ 3850 public void setPrivateImeOptions(String type) { 3851 if (mInputContentType == null) mInputContentType = new InputContentType(); 3852 mInputContentType.privateImeOptions = type; 3853 } 3854 3855 /** 3856 * Get the private type of the content. 3857 * 3858 * @see #setPrivateImeOptions(String) 3859 * @see EditorInfo#privateImeOptions 3860 */ 3861 public String getPrivateImeOptions() { 3862 return mInputContentType != null 3863 ? mInputContentType.privateImeOptions : null; 3864 } 3865 3866 /** 3867 * Set the extra input data of the text, which is the 3868 * {@link EditorInfo#extras TextBoxAttribute.extras} 3869 * Bundle that will be filled in when creating an input connection. The 3870 * given integer is the resource ID of an XML resource holding an 3871 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3872 * 3873 * @see #getInputExtras(boolean) 3874 * @see EditorInfo#extras 3875 * @attr ref android.R.styleable#TextView_editorExtras 3876 */ 3877 public void setInputExtras(int xmlResId) 3878 throws XmlPullParserException, IOException { 3879 XmlResourceParser parser = getResources().getXml(xmlResId); 3880 if (mInputContentType == null) mInputContentType = new InputContentType(); 3881 mInputContentType.extras = new Bundle(); 3882 getResources().parseBundleExtras(parser, mInputContentType.extras); 3883 } 3884 3885 /** 3886 * Retrieve the input extras currently associated with the text view, which 3887 * can be viewed as well as modified. 3888 * 3889 * @param create If true, the extras will be created if they don't already 3890 * exist. Otherwise, null will be returned if none have been created. 3891 * @see #setInputExtras(int) 3892 * @see EditorInfo#extras 3893 * @attr ref android.R.styleable#TextView_editorExtras 3894 */ 3895 public Bundle getInputExtras(boolean create) { 3896 if (mInputContentType == null) { 3897 if (!create) return null; 3898 mInputContentType = new InputContentType(); 3899 } 3900 if (mInputContentType.extras == null) { 3901 if (!create) return null; 3902 mInputContentType.extras = new Bundle(); 3903 } 3904 return mInputContentType.extras; 3905 } 3906 3907 /** 3908 * Returns the error message that was set to be displayed with 3909 * {@link #setError}, or <code>null</code> if no error was set 3910 * or if it the error was cleared by the widget after user input. 3911 */ 3912 public CharSequence getError() { 3913 return mError; 3914 } 3915 3916 /** 3917 * Sets the right-hand compound drawable of the TextView to the "error" 3918 * icon and sets an error message that will be displayed in a popup when 3919 * the TextView has focus. The icon and error message will be reset to 3920 * null when any key events cause changes to the TextView's text. If the 3921 * <code>error</code> is <code>null</code>, the error message and icon 3922 * will be cleared. 3923 */ 3924 @android.view.RemotableViewMethod 3925 public void setError(CharSequence error) { 3926 if (error == null) { 3927 setError(null, null); 3928 } else { 3929 Drawable dr = getContext().getResources(). 3930 getDrawable(com.android.internal.R.drawable.indicator_input_error); 3931 3932 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3933 setError(error, dr); 3934 } 3935 } 3936 3937 /** 3938 * Sets the right-hand compound drawable of the TextView to the specified 3939 * icon and sets an error message that will be displayed in a popup when 3940 * the TextView has focus. The icon and error message will be reset to 3941 * null when any key events cause changes to the TextView's text. The 3942 * drawable must already have had {@link Drawable#setBounds} set on it. 3943 * If the <code>error</code> is <code>null</code>, the error message will 3944 * be cleared (and you should provide a <code>null</code> icon as well). 3945 */ 3946 public void setError(CharSequence error, Drawable icon) { 3947 error = TextUtils.stringOrSpannedString(error); 3948 3949 mError = error; 3950 mErrorWasChanged = true; 3951 final Drawables dr = mDrawables; 3952 if (dr != null) { 3953 switch (getResolvedLayoutDirection()) { 3954 default: 3955 case LAYOUT_DIRECTION_LTR: 3956 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, icon, 3957 dr.mDrawableBottom); 3958 break; 3959 case LAYOUT_DIRECTION_RTL: 3960 setCompoundDrawables(icon, dr.mDrawableTop, dr.mDrawableRight, 3961 dr.mDrawableBottom); 3962 break; 3963 } 3964 } else { 3965 setCompoundDrawables(null, null, icon, null); 3966 } 3967 3968 if (error == null) { 3969 if (mPopup != null) { 3970 if (mPopup.isShowing()) { 3971 mPopup.dismiss(); 3972 } 3973 3974 mPopup = null; 3975 } 3976 } else { 3977 if (isFocused()) { 3978 showError(); 3979 } 3980 } 3981 } 3982 3983 private void showError() { 3984 if (getWindowToken() == null) { 3985 mShowErrorAfterAttach = true; 3986 return; 3987 } 3988 3989 if (mPopup == null) { 3990 LayoutInflater inflater = LayoutInflater.from(getContext()); 3991 final TextView err = (TextView) inflater.inflate( 3992 com.android.internal.R.layout.textview_hint, null); 3993 3994 final float scale = getResources().getDisplayMetrics().density; 3995 mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), (int) (50 * scale + 0.5f)); 3996 mPopup.setFocusable(false); 3997 // The user is entering text, so the input method is needed. We 3998 // don't want the popup to be displayed on top of it. 3999 mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 4000 } 4001 4002 TextView tv = (TextView) mPopup.getContentView(); 4003 chooseSize(mPopup, mError, tv); 4004 tv.setText(mError); 4005 4006 mPopup.showAsDropDown(this, getErrorX(), getErrorY()); 4007 mPopup.fixDirection(mPopup.isAboveAnchor()); 4008 } 4009 4010 private static class ErrorPopup extends PopupWindow { 4011 private boolean mAbove = false; 4012 private final TextView mView; 4013 private int mPopupInlineErrorBackgroundId = 0; 4014 private int mPopupInlineErrorAboveBackgroundId = 0; 4015 4016 ErrorPopup(TextView v, int width, int height) { 4017 super(v, width, height); 4018 mView = v; 4019 // Make sure the TextView has a background set as it will be used the first time it is 4020 // shown and positionned. Initialized with below background, which should have 4021 // dimensions identical to the above version for this to work (and is more likely). 4022 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 4023 com.android.internal.R.styleable.Theme_errorMessageBackground); 4024 mView.setBackgroundResource(mPopupInlineErrorBackgroundId); 4025 } 4026 4027 void fixDirection(boolean above) { 4028 mAbove = above; 4029 4030 if (above) { 4031 mPopupInlineErrorAboveBackgroundId = 4032 getResourceId(mPopupInlineErrorAboveBackgroundId, 4033 com.android.internal.R.styleable.Theme_errorMessageAboveBackground); 4034 } else { 4035 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 4036 com.android.internal.R.styleable.Theme_errorMessageBackground); 4037 } 4038 4039 mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId : 4040 mPopupInlineErrorBackgroundId); 4041 } 4042 4043 private int getResourceId(int currentId, int index) { 4044 if (currentId == 0) { 4045 TypedArray styledAttributes = mView.getContext().obtainStyledAttributes( 4046 R.styleable.Theme); 4047 currentId = styledAttributes.getResourceId(index, 0); 4048 styledAttributes.recycle(); 4049 } 4050 return currentId; 4051 } 4052 4053 @Override 4054 public void update(int x, int y, int w, int h, boolean force) { 4055 super.update(x, y, w, h, force); 4056 4057 boolean above = isAboveAnchor(); 4058 if (above != mAbove) { 4059 fixDirection(above); 4060 } 4061 } 4062 } 4063 4064 /** 4065 * Returns the Y offset to make the pointy top of the error point 4066 * at the middle of the error icon. 4067 */ 4068 private int getErrorX() { 4069 /* 4070 * The "25" is the distance between the point and the right edge 4071 * of the background 4072 */ 4073 final float scale = getResources().getDisplayMetrics().density; 4074 4075 final Drawables dr = mDrawables; 4076 return getWidth() - mPopup.getWidth() - getPaddingRight() - 4077 (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 4078 } 4079 4080 /** 4081 * Returns the Y offset to make the pointy top of the error point 4082 * at the bottom of the error icon. 4083 */ 4084 private int getErrorY() { 4085 /* 4086 * Compound, not extended, because the icon is not clipped 4087 * if the text height is smaller. 4088 */ 4089 final int compoundPaddingTop = getCompoundPaddingTop(); 4090 int vspace = mBottom - mTop - getCompoundPaddingBottom() - compoundPaddingTop; 4091 4092 final Drawables dr = mDrawables; 4093 int icontop = compoundPaddingTop + 4094 (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 4095 4096 /* 4097 * The "2" is the distance between the point and the top edge 4098 * of the background. 4099 */ 4100 final float scale = getResources().getDisplayMetrics().density; 4101 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) - getHeight() - 4102 (int) (2 * scale + 0.5f); 4103 } 4104 4105 private void hideError() { 4106 if (mPopup != null) { 4107 if (mPopup.isShowing()) { 4108 mPopup.dismiss(); 4109 } 4110 } 4111 4112 mShowErrorAfterAttach = false; 4113 } 4114 4115 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 4116 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 4117 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 4118 4119 int defaultWidthInPixels = getResources().getDimensionPixelSize( 4120 com.android.internal.R.dimen.textview_error_popup_default_width); 4121 Layout l = new StaticLayout(text, tv.getPaint(), defaultWidthInPixels, 4122 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 4123 float max = 0; 4124 for (int i = 0; i < l.getLineCount(); i++) { 4125 max = Math.max(max, l.getLineWidth(i)); 4126 } 4127 4128 /* 4129 * Now set the popup size to be big enough for the text plus the border capped 4130 * to DEFAULT_MAX_POPUP_WIDTH 4131 */ 4132 pop.setWidth(wid + (int) Math.ceil(max)); 4133 pop.setHeight(ht + l.getHeight()); 4134 } 4135 4136 4137 @Override 4138 protected boolean setFrame(int l, int t, int r, int b) { 4139 boolean result = super.setFrame(l, t, r, b); 4140 4141 if (mPopup != null) { 4142 TextView tv = (TextView) mPopup.getContentView(); 4143 chooseSize(mPopup, mError, tv); 4144 mPopup.update(this, getErrorX(), getErrorY(), 4145 mPopup.getWidth(), mPopup.getHeight()); 4146 } 4147 4148 restartMarqueeIfNeeded(); 4149 4150 return result; 4151 } 4152 4153 private void restartMarqueeIfNeeded() { 4154 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4155 mRestartMarquee = false; 4156 startMarquee(); 4157 } 4158 } 4159 4160 /** 4161 * Sets the list of input filters that will be used if the buffer is 4162 * Editable. Has no effect otherwise. 4163 * 4164 * @attr ref android.R.styleable#TextView_maxLength 4165 */ 4166 public void setFilters(InputFilter[] filters) { 4167 if (filters == null) { 4168 throw new IllegalArgumentException(); 4169 } 4170 4171 mFilters = filters; 4172 4173 if (mText instanceof Editable) { 4174 setFilters((Editable) mText, filters); 4175 } 4176 } 4177 4178 /** 4179 * Sets the list of input filters on the specified Editable, 4180 * and includes mInput in the list if it is an InputFilter. 4181 */ 4182 private void setFilters(Editable e, InputFilter[] filters) { 4183 if (mInput instanceof InputFilter) { 4184 InputFilter[] nf = new InputFilter[filters.length + 1]; 4185 4186 System.arraycopy(filters, 0, nf, 0, filters.length); 4187 nf[filters.length] = (InputFilter) mInput; 4188 4189 e.setFilters(nf); 4190 } else { 4191 e.setFilters(filters); 4192 } 4193 } 4194 4195 /** 4196 * Returns the current list of input filters. 4197 */ 4198 public InputFilter[] getFilters() { 4199 return mFilters; 4200 } 4201 4202 ///////////////////////////////////////////////////////////////////////// 4203 4204 private int getVerticalOffset(boolean forceNormal) { 4205 int voffset = 0; 4206 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4207 4208 Layout l = mLayout; 4209 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4210 l = mHintLayout; 4211 } 4212 4213 if (gravity != Gravity.TOP) { 4214 int boxht; 4215 4216 if (l == mHintLayout) { 4217 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 4218 getCompoundPaddingBottom(); 4219 } else { 4220 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 4221 getExtendedPaddingBottom(); 4222 } 4223 int textht = l.getHeight(); 4224 4225 if (textht < boxht) { 4226 if (gravity == Gravity.BOTTOM) 4227 voffset = boxht - textht; 4228 else // (gravity == Gravity.CENTER_VERTICAL) 4229 voffset = (boxht - textht) >> 1; 4230 } 4231 } 4232 return voffset; 4233 } 4234 4235 private int getBottomVerticalOffset(boolean forceNormal) { 4236 int voffset = 0; 4237 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4238 4239 Layout l = mLayout; 4240 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4241 l = mHintLayout; 4242 } 4243 4244 if (gravity != Gravity.BOTTOM) { 4245 int boxht; 4246 4247 if (l == mHintLayout) { 4248 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 4249 getCompoundPaddingBottom(); 4250 } else { 4251 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 4252 getExtendedPaddingBottom(); 4253 } 4254 int textht = l.getHeight(); 4255 4256 if (textht < boxht) { 4257 if (gravity == Gravity.TOP) 4258 voffset = boxht - textht; 4259 else // (gravity == Gravity.CENTER_VERTICAL) 4260 voffset = (boxht - textht) >> 1; 4261 } 4262 } 4263 return voffset; 4264 } 4265 4266 private void invalidateCursorPath() { 4267 if (mHighlightPathBogus) { 4268 invalidateCursor(); 4269 } else { 4270 final int horizontalPadding = getCompoundPaddingLeft(); 4271 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4272 4273 if (mCursorCount == 0) { 4274 synchronized (sTempRect) { 4275 /* 4276 * The reason for this concern about the thickness of the 4277 * cursor and doing the floor/ceil on the coordinates is that 4278 * some EditTexts (notably textfields in the Browser) have 4279 * anti-aliased text where not all the characters are 4280 * necessarily at integer-multiple locations. This should 4281 * make sure the entire cursor gets invalidated instead of 4282 * sometimes missing half a pixel. 4283 */ 4284 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 4285 if (thick < 1.0f) { 4286 thick = 1.0f; 4287 } 4288 4289 thick /= 2.0f; 4290 4291 mHighlightPath.computeBounds(sTempRect, false); 4292 4293 invalidate((int) FloatMath.floor(horizontalPadding + sTempRect.left - thick), 4294 (int) FloatMath.floor(verticalPadding + sTempRect.top - thick), 4295 (int) FloatMath.ceil(horizontalPadding + sTempRect.right + thick), 4296 (int) FloatMath.ceil(verticalPadding + sTempRect.bottom + thick)); 4297 } 4298 } else { 4299 for (int i = 0; i < mCursorCount; i++) { 4300 Rect bounds = mCursorDrawable[i].getBounds(); 4301 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 4302 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 4303 } 4304 } 4305 } 4306 } 4307 4308 private void invalidateCursor() { 4309 int where = getSelectionEnd(); 4310 4311 invalidateCursor(where, where, where); 4312 } 4313 4314 private void invalidateCursor(int a, int b, int c) { 4315 if (mLayout == null) { 4316 invalidate(); 4317 } else { 4318 if (a >= 0 || b >= 0 || c >= 0) { 4319 int first = Math.min(Math.min(a, b), c); 4320 int last = Math.max(Math.max(a, b), c); 4321 4322 int line = mLayout.getLineForOffset(first); 4323 int top = mLayout.getLineTop(line); 4324 4325 // This is ridiculous, but the descent from the line above 4326 // can hang down into the line we really want to redraw, 4327 // so we have to invalidate part of the line above to make 4328 // sure everything that needs to be redrawn really is. 4329 // (But not the whole line above, because that would cause 4330 // the same problem with the descenders on the line above it!) 4331 if (line > 0) { 4332 top -= mLayout.getLineDescent(line - 1); 4333 } 4334 4335 int line2; 4336 4337 if (first == last) 4338 line2 = line; 4339 else 4340 line2 = mLayout.getLineForOffset(last); 4341 4342 int bottom = mLayout.getLineTop(line2 + 1); 4343 4344 final int horizontalPadding = getCompoundPaddingLeft(); 4345 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4346 4347 // If used, the cursor drawables can have an arbitrary dimension that can go beyond 4348 // the invalidated lines specified above. 4349 for (int i = 0; i < mCursorCount; i++) { 4350 Rect bounds = mCursorDrawable[i].getBounds(); 4351 top = Math.min(top, bounds.top); 4352 bottom = Math.max(bottom, bounds.bottom); 4353 // Horizontal bounds are already full width, no need to update 4354 } 4355 4356 invalidate(horizontalPadding + mScrollX, top + verticalPadding, 4357 horizontalPadding + mScrollX + getWidth() - 4358 getCompoundPaddingLeft() - getCompoundPaddingRight(), 4359 bottom + verticalPadding); 4360 } 4361 } 4362 } 4363 4364 private void registerForPreDraw() { 4365 final ViewTreeObserver observer = getViewTreeObserver(); 4366 4367 if (mPreDrawState == PREDRAW_NOT_REGISTERED) { 4368 observer.addOnPreDrawListener(this); 4369 mPreDrawState = PREDRAW_PENDING; 4370 } else if (mPreDrawState == PREDRAW_DONE) { 4371 mPreDrawState = PREDRAW_PENDING; 4372 } 4373 4374 // else state is PREDRAW_PENDING, so keep waiting. 4375 } 4376 4377 /** 4378 * {@inheritDoc} 4379 */ 4380 public boolean onPreDraw() { 4381 if (mPreDrawState != PREDRAW_PENDING) { 4382 return true; 4383 } 4384 4385 if (mLayout == null) { 4386 assumeLayout(); 4387 } 4388 4389 boolean changed = false; 4390 4391 if (mMovement != null) { 4392 /* This code also provides auto-scrolling when a cursor is moved using a 4393 * CursorController (insertion point or selection limits). 4394 * For selection, ensure start or end is visible depending on controller's state. 4395 */ 4396 int curs = getSelectionEnd(); 4397 // Do not create the controller if it is not already created. 4398 if (mSelectionModifierCursorController != null && 4399 mSelectionModifierCursorController.isSelectionStartDragged()) { 4400 curs = getSelectionStart(); 4401 } 4402 4403 /* 4404 * TODO: This should really only keep the end in view if 4405 * it already was before the text changed. I'm not sure 4406 * of a good way to tell from here if it was. 4407 */ 4408 if (curs < 0 && 4409 (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 4410 curs = mText.length(); 4411 } 4412 4413 if (curs >= 0) { 4414 changed = bringPointIntoView(curs); 4415 } 4416 } else { 4417 changed = bringTextIntoView(); 4418 } 4419 4420 // This has to be checked here since: 4421 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 4422 // a screen rotation) since layout is not yet initialized at that point. 4423 if (mCreatedWithASelection) { 4424 startSelectionActionMode(); 4425 mCreatedWithASelection = false; 4426 } 4427 4428 // Phone specific code (there is no ExtractEditText on tablets). 4429 // ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can 4430 // not be set. Do the test here instead. 4431 if (this instanceof ExtractEditText && hasSelection()) { 4432 startSelectionActionMode(); 4433 } 4434 4435 mPreDrawState = PREDRAW_DONE; 4436 return !changed; 4437 } 4438 4439 @Override 4440 protected void onAttachedToWindow() { 4441 super.onAttachedToWindow(); 4442 4443 mTemporaryDetach = false; 4444 4445 if (mShowErrorAfterAttach) { 4446 showError(); 4447 mShowErrorAfterAttach = false; 4448 } 4449 4450 final ViewTreeObserver observer = getViewTreeObserver(); 4451 // No need to create the controller. 4452 // The get method will add the listener on controller creation. 4453 if (mInsertionPointCursorController != null) { 4454 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 4455 } 4456 if (mSelectionModifierCursorController != null) { 4457 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 4458 } 4459 4460 // Resolve drawables as the layout direction has been resolved 4461 resolveDrawables(); 4462 4463 updateSpellCheckSpans(0, mText.length()); 4464 } 4465 4466 @Override 4467 protected void onDetachedFromWindow() { 4468 super.onDetachedFromWindow(); 4469 4470 final ViewTreeObserver observer = getViewTreeObserver(); 4471 if (mPreDrawState != PREDRAW_NOT_REGISTERED) { 4472 observer.removeOnPreDrawListener(this); 4473 mPreDrawState = PREDRAW_NOT_REGISTERED; 4474 } 4475 4476 if (mError != null) { 4477 hideError(); 4478 } 4479 4480 if (mBlink != null) { 4481 mBlink.removeCallbacks(mBlink); 4482 } 4483 4484 if (mInsertionPointCursorController != null) { 4485 mInsertionPointCursorController.onDetached(); 4486 } 4487 4488 if (mSelectionModifierCursorController != null) { 4489 mSelectionModifierCursorController.onDetached(); 4490 } 4491 4492 hideControllers(); 4493 4494 resetResolvedDrawables(); 4495 4496 if (mSpellChecker != null) { 4497 mSpellChecker.closeSession(); 4498 // Forces the creation of a new SpellChecker next time this window is created. 4499 // Will handle the cases where the settings has been changed in the meantime. 4500 mSpellChecker = null; 4501 } 4502 } 4503 4504 @Override 4505 protected boolean isPaddingOffsetRequired() { 4506 return mShadowRadius != 0 || mDrawables != null; 4507 } 4508 4509 @Override 4510 protected int getLeftPaddingOffset() { 4511 return getCompoundPaddingLeft() - mPaddingLeft + 4512 (int) Math.min(0, mShadowDx - mShadowRadius); 4513 } 4514 4515 @Override 4516 protected int getTopPaddingOffset() { 4517 return (int) Math.min(0, mShadowDy - mShadowRadius); 4518 } 4519 4520 @Override 4521 protected int getBottomPaddingOffset() { 4522 return (int) Math.max(0, mShadowDy + mShadowRadius); 4523 } 4524 4525 @Override 4526 protected int getRightPaddingOffset() { 4527 return -(getCompoundPaddingRight() - mPaddingRight) + 4528 (int) Math.max(0, mShadowDx + mShadowRadius); 4529 } 4530 4531 @Override 4532 protected boolean verifyDrawable(Drawable who) { 4533 final boolean verified = super.verifyDrawable(who); 4534 if (!verified && mDrawables != null) { 4535 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 4536 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom || 4537 who == mDrawables.mDrawableStart || who == mDrawables.mDrawableEnd; 4538 } 4539 return verified; 4540 } 4541 4542 @Override 4543 public void jumpDrawablesToCurrentState() { 4544 super.jumpDrawablesToCurrentState(); 4545 if (mDrawables != null) { 4546 if (mDrawables.mDrawableLeft != null) { 4547 mDrawables.mDrawableLeft.jumpToCurrentState(); 4548 } 4549 if (mDrawables.mDrawableTop != null) { 4550 mDrawables.mDrawableTop.jumpToCurrentState(); 4551 } 4552 if (mDrawables.mDrawableRight != null) { 4553 mDrawables.mDrawableRight.jumpToCurrentState(); 4554 } 4555 if (mDrawables.mDrawableBottom != null) { 4556 mDrawables.mDrawableBottom.jumpToCurrentState(); 4557 } 4558 if (mDrawables.mDrawableStart != null) { 4559 mDrawables.mDrawableStart.jumpToCurrentState(); 4560 } 4561 if (mDrawables.mDrawableEnd != null) { 4562 mDrawables.mDrawableEnd.jumpToCurrentState(); 4563 } 4564 } 4565 } 4566 4567 @Override 4568 public void invalidateDrawable(Drawable drawable) { 4569 if (verifyDrawable(drawable)) { 4570 final Rect dirty = drawable.getBounds(); 4571 int scrollX = mScrollX; 4572 int scrollY = mScrollY; 4573 4574 // IMPORTANT: The coordinates below are based on the coordinates computed 4575 // for each compound drawable in onDraw(). Make sure to update each section 4576 // accordingly. 4577 final TextView.Drawables drawables = mDrawables; 4578 if (drawables != null) { 4579 if (drawable == drawables.mDrawableLeft) { 4580 final int compoundPaddingTop = getCompoundPaddingTop(); 4581 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4582 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4583 4584 scrollX += mPaddingLeft; 4585 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 4586 } else if (drawable == drawables.mDrawableRight) { 4587 final int compoundPaddingTop = getCompoundPaddingTop(); 4588 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4589 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4590 4591 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 4592 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 4593 } else if (drawable == drawables.mDrawableTop) { 4594 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4595 final int compoundPaddingRight = getCompoundPaddingRight(); 4596 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4597 4598 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 4599 scrollY += mPaddingTop; 4600 } else if (drawable == drawables.mDrawableBottom) { 4601 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4602 final int compoundPaddingRight = getCompoundPaddingRight(); 4603 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4604 4605 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 4606 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 4607 } 4608 } 4609 4610 invalidate(dirty.left + scrollX, dirty.top + scrollY, 4611 dirty.right + scrollX, dirty.bottom + scrollY); 4612 } 4613 } 4614 4615 /** 4616 * @hide 4617 */ 4618 @Override 4619 public int getResolvedLayoutDirection(Drawable who) { 4620 if (who == null) return View.LAYOUT_DIRECTION_LTR; 4621 if (mDrawables != null) { 4622 final Drawables drawables = mDrawables; 4623 if (who == drawables.mDrawableLeft || who == drawables.mDrawableRight || 4624 who == drawables.mDrawableTop || who == drawables.mDrawableBottom || 4625 who == drawables.mDrawableStart || who == drawables.mDrawableEnd) { 4626 return getResolvedLayoutDirection(); 4627 } 4628 } 4629 return super.getResolvedLayoutDirection(who); 4630 } 4631 4632 @Override 4633 protected boolean onSetAlpha(int alpha) { 4634 // Alpha is supported if and only if the drawing can be done in one pass. 4635 // TODO text with spans with a background color currently do not respect this alpha. 4636 if (getBackground() == null) { 4637 mCurrentAlpha = alpha; 4638 final Drawables dr = mDrawables; 4639 if (dr != null) { 4640 if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha); 4641 if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha); 4642 if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha); 4643 if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha); 4644 if (dr.mDrawableStart != null) dr.mDrawableStart.mutate().setAlpha(alpha); 4645 if (dr.mDrawableEnd != null) dr.mDrawableEnd.mutate().setAlpha(alpha); 4646 } 4647 return true; 4648 } 4649 4650 mCurrentAlpha = 255; 4651 return false; 4652 } 4653 4654 /** 4655 * When a TextView is used to display a useful piece of information to the user (such as a 4656 * contact's address), it should be made selectable, so that the user can select and copy this 4657 * content. 4658 * 4659 * Use {@link #setTextIsSelectable(boolean)} or the 4660 * {@link android.R.styleable#TextView_textIsSelectable} XML attribute to make this TextView 4661 * selectable (text is not selectable by default). 4662 * 4663 * Note that this method simply returns the state of this flag. Although this flag has to be set 4664 * in order to select text in non-editable TextView, the content of an {@link EditText} can 4665 * always be selected, independently of the value of this flag. 4666 * 4667 * @return True if the text displayed in this TextView can be selected by the user. 4668 * 4669 * @attr ref android.R.styleable#TextView_textIsSelectable 4670 */ 4671 public boolean isTextSelectable() { 4672 return mTextIsSelectable; 4673 } 4674 4675 /** 4676 * Sets whether or not (default) the content of this view is selectable by the user. 4677 * 4678 * Note that this methods affect the {@link #setFocusable(boolean)}, 4679 * {@link #setFocusableInTouchMode(boolean)} {@link #setClickable(boolean)} and 4680 * {@link #setLongClickable(boolean)} states and you may want to restore these if they were 4681 * customized. 4682 * 4683 * See {@link #isTextSelectable} for details. 4684 * 4685 * @param selectable Whether or not the content of this TextView should be selectable. 4686 */ 4687 public void setTextIsSelectable(boolean selectable) { 4688 if (mTextIsSelectable == selectable) return; 4689 4690 mTextIsSelectable = selectable; 4691 4692 setFocusableInTouchMode(selectable); 4693 setFocusable(selectable); 4694 setClickable(selectable); 4695 setLongClickable(selectable); 4696 4697 // mInputType is already EditorInfo.TYPE_NULL and mInput is null; 4698 4699 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 4700 setText(getText(), selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 4701 4702 // Called by setText above, but safer in case of future code changes 4703 prepareCursorControllers(); 4704 } 4705 4706 @Override 4707 protected int[] onCreateDrawableState(int extraSpace) { 4708 final int[] drawableState; 4709 4710 if (mSingleLine) { 4711 drawableState = super.onCreateDrawableState(extraSpace); 4712 } else { 4713 drawableState = super.onCreateDrawableState(extraSpace + 1); 4714 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 4715 } 4716 4717 if (mTextIsSelectable) { 4718 // Disable pressed state, which was introduced when TextView was made clickable. 4719 // Prevents text color change. 4720 // setClickable(false) would have a similar effect, but it also disables focus changes 4721 // and long press actions, which are both needed by text selection. 4722 final int length = drawableState.length; 4723 for (int i = 0; i < length; i++) { 4724 if (drawableState[i] == R.attr.state_pressed) { 4725 final int[] nonPressedState = new int[length - 1]; 4726 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 4727 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 4728 return nonPressedState; 4729 } 4730 } 4731 } 4732 4733 return drawableState; 4734 } 4735 4736 @Override 4737 protected void onDraw(Canvas canvas) { 4738 if (mPreDrawState == PREDRAW_DONE) { 4739 final ViewTreeObserver observer = getViewTreeObserver(); 4740 observer.removeOnPreDrawListener(this); 4741 mPreDrawState = PREDRAW_NOT_REGISTERED; 4742 } 4743 4744 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return; 4745 4746 restartMarqueeIfNeeded(); 4747 4748 // Draw the background for this view 4749 super.onDraw(canvas); 4750 4751 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4752 final int compoundPaddingTop = getCompoundPaddingTop(); 4753 final int compoundPaddingRight = getCompoundPaddingRight(); 4754 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4755 final int scrollX = mScrollX; 4756 final int scrollY = mScrollY; 4757 final int right = mRight; 4758 final int left = mLeft; 4759 final int bottom = mBottom; 4760 final int top = mTop; 4761 4762 final Drawables dr = mDrawables; 4763 if (dr != null) { 4764 /* 4765 * Compound, not extended, because the icon is not clipped 4766 * if the text height is smaller. 4767 */ 4768 4769 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 4770 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 4771 4772 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4773 // Make sure to update invalidateDrawable() when changing this code. 4774 if (dr.mDrawableLeft != null) { 4775 canvas.save(); 4776 canvas.translate(scrollX + mPaddingLeft, 4777 scrollY + compoundPaddingTop + 4778 (vspace - dr.mDrawableHeightLeft) / 2); 4779 dr.mDrawableLeft.draw(canvas); 4780 canvas.restore(); 4781 } 4782 4783 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4784 // Make sure to update invalidateDrawable() when changing this code. 4785 if (dr.mDrawableRight != null) { 4786 canvas.save(); 4787 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 4788 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 4789 dr.mDrawableRight.draw(canvas); 4790 canvas.restore(); 4791 } 4792 4793 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4794 // Make sure to update invalidateDrawable() when changing this code. 4795 if (dr.mDrawableTop != null) { 4796 canvas.save(); 4797 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 4798 scrollY + mPaddingTop); 4799 dr.mDrawableTop.draw(canvas); 4800 canvas.restore(); 4801 } 4802 4803 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4804 // Make sure to update invalidateDrawable() when changing this code. 4805 if (dr.mDrawableBottom != null) { 4806 canvas.save(); 4807 canvas.translate(scrollX + compoundPaddingLeft + 4808 (hspace - dr.mDrawableWidthBottom) / 2, 4809 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 4810 dr.mDrawableBottom.draw(canvas); 4811 canvas.restore(); 4812 } 4813 } 4814 4815 int color = mCurTextColor; 4816 4817 if (mLayout == null) { 4818 assumeLayout(); 4819 } 4820 4821 Layout layout = mLayout; 4822 int cursorcolor = color; 4823 4824 if (mHint != null && mText.length() == 0) { 4825 if (mHintTextColor != null) { 4826 color = mCurHintTextColor; 4827 } 4828 4829 layout = mHintLayout; 4830 } 4831 4832 mTextPaint.setColor(color); 4833 if (mCurrentAlpha != 255) { 4834 // If set, the alpha will override the color's alpha. Multiply the alphas. 4835 mTextPaint.setAlpha((mCurrentAlpha * Color.alpha(color)) / 255); 4836 } 4837 mTextPaint.drawableState = getDrawableState(); 4838 4839 canvas.save(); 4840 /* Would be faster if we didn't have to do this. Can we chop the 4841 (displayable) text so that we don't need to do this ever? 4842 */ 4843 4844 int extendedPaddingTop = getExtendedPaddingTop(); 4845 int extendedPaddingBottom = getExtendedPaddingBottom(); 4846 4847 float clipLeft = compoundPaddingLeft + scrollX; 4848 float clipTop = extendedPaddingTop + scrollY; 4849 float clipRight = right - left - compoundPaddingRight + scrollX; 4850 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 4851 4852 if (mShadowRadius != 0) { 4853 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4854 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4855 4856 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4857 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4858 } 4859 4860 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4861 4862 int voffsetText = 0; 4863 int voffsetCursor = 0; 4864 4865 // translate in by our padding 4866 { 4867 /* shortcircuit calling getVerticaOffset() */ 4868 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4869 voffsetText = getVerticalOffset(false); 4870 voffsetCursor = getVerticalOffset(true); 4871 } 4872 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4873 } 4874 4875 final int layoutDirection = getResolvedLayoutDirection(); 4876 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 4877 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 4878 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 4879 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4880 (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4881 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4882 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4883 } 4884 4885 if (mMarquee != null && mMarquee.isRunning()) { 4886 canvas.translate(-mMarquee.mScroll, 0.0f); 4887 } 4888 } 4889 4890 Path highlight = null; 4891 int selStart = -1, selEnd = -1; 4892 boolean drawCursor = false; 4893 4894 // If there is no movement method, then there can be no selection. 4895 // Check that first and attempt to skip everything having to do with 4896 // the cursor. 4897 // XXX This is not strictly true -- a program could set the 4898 // selection manually if it really wanted to. 4899 if (mMovement != null && (isFocused() || isPressed())) { 4900 selStart = getSelectionStart(); 4901 selEnd = getSelectionEnd(); 4902 4903 if (selStart >= 0) { 4904 if (mHighlightPath == null) mHighlightPath = new Path(); 4905 4906 if (selStart == selEnd) { 4907 if (isCursorVisible() && 4908 (SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 4909 if (mHighlightPathBogus) { 4910 mHighlightPath.reset(); 4911 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4912 updateCursorsPositions(); 4913 mHighlightPathBogus = false; 4914 } 4915 4916 // XXX should pass to skin instead of drawing directly 4917 mHighlightPaint.setColor(cursorcolor); 4918 if (mCurrentAlpha != 255) { 4919 mHighlightPaint.setAlpha( 4920 (mCurrentAlpha * Color.alpha(cursorcolor)) / 255); 4921 } 4922 mHighlightPaint.setStyle(Paint.Style.STROKE); 4923 highlight = mHighlightPath; 4924 drawCursor = mCursorCount > 0; 4925 } 4926 } else if (textCanBeSelected()) { 4927 if (mHighlightPathBogus) { 4928 mHighlightPath.reset(); 4929 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4930 mHighlightPathBogus = false; 4931 } 4932 4933 // XXX should pass to skin instead of drawing directly 4934 mHighlightPaint.setColor(mHighlightColor); 4935 if (mCurrentAlpha != 255) { 4936 mHighlightPaint.setAlpha( 4937 (mCurrentAlpha * Color.alpha(mHighlightColor)) / 255); 4938 } 4939 mHighlightPaint.setStyle(Paint.Style.FILL); 4940 4941 highlight = mHighlightPath; 4942 } 4943 } 4944 } 4945 4946 /* Comment out until we decide what to do about animations 4947 boolean isLinearTextOn = false; 4948 if (currentTransformation != null) { 4949 isLinearTextOn = mTextPaint.isLinearTextOn(); 4950 Matrix m = currentTransformation.getMatrix(); 4951 if (!m.isIdentity()) { 4952 // mTextPaint.setLinearTextOn(true); 4953 } 4954 } 4955 */ 4956 4957 final InputMethodState ims = mInputMethodState; 4958 final int cursorOffsetVertical = voffsetCursor - voffsetText; 4959 if (ims != null && ims.mBatchEditNesting == 0) { 4960 InputMethodManager imm = InputMethodManager.peekInstance(); 4961 if (imm != null) { 4962 if (imm.isActive(this)) { 4963 boolean reported = false; 4964 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4965 // We are in extract mode and the content has changed 4966 // in some way... just report complete new text to the 4967 // input method. 4968 reported = reportExtractedText(); 4969 } 4970 if (!reported && highlight != null) { 4971 int candStart = -1; 4972 int candEnd = -1; 4973 if (mText instanceof Spannable) { 4974 Spannable sp = (Spannable)mText; 4975 candStart = EditableInputConnection.getComposingSpanStart(sp); 4976 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 4977 } 4978 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 4979 } 4980 } 4981 4982 if (imm.isWatchingCursor(this) && highlight != null) { 4983 highlight.computeBounds(ims.mTmpRectF, true); 4984 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 4985 4986 canvas.getMatrix().mapPoints(ims.mTmpOffset); 4987 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 4988 4989 ims.mTmpRectF.offset(0, cursorOffsetVertical); 4990 4991 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 4992 (int)(ims.mTmpRectF.top + 0.5), 4993 (int)(ims.mTmpRectF.right + 0.5), 4994 (int)(ims.mTmpRectF.bottom + 0.5)); 4995 4996 imm.updateCursor(this, 4997 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 4998 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 4999 } 5000 } 5001 } 5002 5003 if (mCorrectionHighlighter != null) { 5004 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 5005 } 5006 5007 if (drawCursor) { 5008 drawCursor(canvas, cursorOffsetVertical); 5009 // Rely on the drawable entirely, do not draw the cursor line. 5010 // Has to be done after the IMM related code above which relies on the highlight. 5011 highlight = null; 5012 } 5013 5014 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 5015 5016 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 5017 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 5018 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 5019 } 5020 5021 /* Comment out until we decide what to do about animations 5022 if (currentTransformation != null) { 5023 mTextPaint.setLinearTextOn(isLinearTextOn); 5024 } 5025 */ 5026 5027 canvas.restore(); 5028 } 5029 5030 private void updateCursorsPositions() { 5031 if (mCursorDrawableRes == 0) { 5032 mCursorCount = 0; 5033 return; 5034 } 5035 5036 final int offset = getSelectionStart(); 5037 final int line = mLayout.getLineForOffset(offset); 5038 final int top = mLayout.getLineTop(line); 5039 final int bottom = mLayout.getLineTop(line + 1); 5040 5041 mCursorCount = mLayout.isLevelBoundary(offset) ? 2 : 1; 5042 5043 int middle = bottom; 5044 if (mCursorCount == 2) { 5045 // Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)} 5046 middle = (top + bottom) >> 1; 5047 } 5048 5049 updateCursorPosition(0, top, middle, mLayout.getPrimaryHorizontal(offset)); 5050 5051 if (mCursorCount == 2) { 5052 updateCursorPosition(1, middle, bottom, mLayout.getSecondaryHorizontal(offset)); 5053 } 5054 } 5055 5056 private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) { 5057 if (mCursorDrawable[cursorIndex] == null) 5058 mCursorDrawable[cursorIndex] = mContext.getResources().getDrawable(mCursorDrawableRes); 5059 5060 if (mTempRect == null) mTempRect = new Rect(); 5061 5062 mCursorDrawable[cursorIndex].getPadding(mTempRect); 5063 final int width = mCursorDrawable[cursorIndex].getIntrinsicWidth(); 5064 horizontal = Math.max(0.5f, horizontal - 0.5f); 5065 final int left = (int) (horizontal) - mTempRect.left; 5066 mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width, 5067 bottom + mTempRect.bottom); 5068 } 5069 5070 private void drawCursor(Canvas canvas, int cursorOffsetVertical) { 5071 final boolean translate = cursorOffsetVertical != 0; 5072 if (translate) canvas.translate(0, cursorOffsetVertical); 5073 for (int i = 0; i < mCursorCount; i++) { 5074 mCursorDrawable[i].draw(canvas); 5075 } 5076 if (translate) canvas.translate(0, -cursorOffsetVertical); 5077 } 5078 5079 @Override 5080 public void getFocusedRect(Rect r) { 5081 if (mLayout == null) { 5082 super.getFocusedRect(r); 5083 return; 5084 } 5085 5086 int selEnd = getSelectionEnd(); 5087 if (selEnd < 0) { 5088 super.getFocusedRect(r); 5089 return; 5090 } 5091 5092 int selStart = getSelectionStart(); 5093 if (selStart < 0 || selStart >= selEnd) { 5094 int line = mLayout.getLineForOffset(selEnd); 5095 r.top = mLayout.getLineTop(line); 5096 r.bottom = mLayout.getLineBottom(line); 5097 r.left = (int) mLayout.getPrimaryHorizontal(selEnd) - 2; 5098 r.right = r.left + 4; 5099 } else { 5100 int lineStart = mLayout.getLineForOffset(selStart); 5101 int lineEnd = mLayout.getLineForOffset(selEnd); 5102 r.top = mLayout.getLineTop(lineStart); 5103 r.bottom = mLayout.getLineBottom(lineEnd); 5104 if (lineStart == lineEnd) { 5105 r.left = (int) mLayout.getPrimaryHorizontal(selStart); 5106 r.right = (int) mLayout.getPrimaryHorizontal(selEnd); 5107 } else { 5108 // Selection extends across multiple lines -- the focused 5109 // rect covers the entire width. 5110 if (mHighlightPath == null) mHighlightPath = new Path(); 5111 if (mHighlightPathBogus) { 5112 mHighlightPath.reset(); 5113 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 5114 mHighlightPathBogus = false; 5115 } 5116 synchronized (sTempRect) { 5117 mHighlightPath.computeBounds(sTempRect, true); 5118 r.left = (int)sTempRect.left-1; 5119 r.right = (int)sTempRect.right+1; 5120 } 5121 } 5122 } 5123 5124 // Adjust for padding and gravity. 5125 int paddingLeft = getCompoundPaddingLeft(); 5126 int paddingTop = getExtendedPaddingTop(); 5127 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5128 paddingTop += getVerticalOffset(false); 5129 } 5130 r.offset(paddingLeft, paddingTop); 5131 } 5132 5133 /** 5134 * Return the number of lines of text, or 0 if the internal Layout has not 5135 * been built. 5136 */ 5137 public int getLineCount() { 5138 return mLayout != null ? mLayout.getLineCount() : 0; 5139 } 5140 5141 /** 5142 * Return the baseline for the specified line (0...getLineCount() - 1) 5143 * If bounds is not null, return the top, left, right, bottom extents 5144 * of the specified line in it. If the internal Layout has not been built, 5145 * return 0 and set bounds to (0, 0, 0, 0) 5146 * @param line which line to examine (0..getLineCount() - 1) 5147 * @param bounds Optional. If not null, it returns the extent of the line 5148 * @return the Y-coordinate of the baseline 5149 */ 5150 public int getLineBounds(int line, Rect bounds) { 5151 if (mLayout == null) { 5152 if (bounds != null) { 5153 bounds.set(0, 0, 0, 0); 5154 } 5155 return 0; 5156 } 5157 else { 5158 int baseline = mLayout.getLineBounds(line, bounds); 5159 5160 int voffset = getExtendedPaddingTop(); 5161 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5162 voffset += getVerticalOffset(true); 5163 } 5164 if (bounds != null) { 5165 bounds.offset(getCompoundPaddingLeft(), voffset); 5166 } 5167 return baseline + voffset; 5168 } 5169 } 5170 5171 @Override 5172 public int getBaseline() { 5173 if (mLayout == null) { 5174 return super.getBaseline(); 5175 } 5176 5177 int voffset = 0; 5178 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5179 voffset = getVerticalOffset(true); 5180 } 5181 5182 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 5183 } 5184 5185 /** 5186 * @hide 5187 * @param offsetRequired 5188 */ 5189 @Override 5190 protected int getFadeTop(boolean offsetRequired) { 5191 if (mLayout == null) return 0; 5192 5193 int voffset = 0; 5194 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5195 voffset = getVerticalOffset(true); 5196 } 5197 5198 if (offsetRequired) voffset += getTopPaddingOffset(); 5199 5200 return getExtendedPaddingTop() + voffset; 5201 } 5202 5203 /** 5204 * @hide 5205 * @param offsetRequired 5206 */ 5207 @Override 5208 protected int getFadeHeight(boolean offsetRequired) { 5209 return mLayout != null ? mLayout.getHeight() : 0; 5210 } 5211 5212 @Override 5213 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 5214 if (keyCode == KeyEvent.KEYCODE_BACK) { 5215 boolean isInSelectionMode = mSelectionActionMode != null; 5216 5217 if (isInSelectionMode) { 5218 if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) { 5219 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5220 if (state != null) { 5221 state.startTracking(event, this); 5222 } 5223 return true; 5224 } else if (event.getAction() == KeyEvent.ACTION_UP) { 5225 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5226 if (state != null) { 5227 state.handleUpEvent(event); 5228 } 5229 if (event.isTracking() && !event.isCanceled()) { 5230 if (isInSelectionMode) { 5231 stopSelectionActionMode(); 5232 return true; 5233 } 5234 } 5235 } 5236 } 5237 } 5238 return super.onKeyPreIme(keyCode, event); 5239 } 5240 5241 @Override 5242 public boolean onKeyDown(int keyCode, KeyEvent event) { 5243 int which = doKeyDown(keyCode, event, null); 5244 if (which == 0) { 5245 // Go through default dispatching. 5246 return super.onKeyDown(keyCode, event); 5247 } 5248 5249 return true; 5250 } 5251 5252 @Override 5253 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 5254 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 5255 5256 int which = doKeyDown(keyCode, down, event); 5257 if (which == 0) { 5258 // Go through default dispatching. 5259 return super.onKeyMultiple(keyCode, repeatCount, event); 5260 } 5261 if (which == -1) { 5262 // Consumed the whole thing. 5263 return true; 5264 } 5265 5266 repeatCount--; 5267 5268 // We are going to dispatch the remaining events to either the input 5269 // or movement method. To do this, we will just send a repeated stream 5270 // of down and up events until we have done the complete repeatCount. 5271 // It would be nice if those interfaces had an onKeyMultiple() method, 5272 // but adding that is a more complicated change. 5273 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 5274 if (which == 1) { 5275 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 5276 while (--repeatCount > 0) { 5277 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 5278 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 5279 } 5280 hideErrorIfUnchanged(); 5281 5282 } else if (which == 2) { 5283 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5284 while (--repeatCount > 0) { 5285 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 5286 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5287 } 5288 } 5289 5290 return true; 5291 } 5292 5293 /** 5294 * Returns true if pressing ENTER in this field advances focus instead 5295 * of inserting the character. This is true mostly in single-line fields, 5296 * but also in mail addresses and subjects which will display on multiple 5297 * lines but where it doesn't make sense to insert newlines. 5298 */ 5299 private boolean shouldAdvanceFocusOnEnter() { 5300 if (mInput == null) { 5301 return false; 5302 } 5303 5304 if (mSingleLine) { 5305 return true; 5306 } 5307 5308 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5309 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 5310 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 5311 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 5312 return true; 5313 } 5314 } 5315 5316 return false; 5317 } 5318 5319 /** 5320 * Returns true if pressing TAB in this field advances focus instead 5321 * of inserting the character. Insert tabs only in multi-line editors. 5322 */ 5323 private boolean shouldAdvanceFocusOnTab() { 5324 if (mInput != null && !mSingleLine) { 5325 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5326 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 5327 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 5328 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 5329 return false; 5330 } 5331 } 5332 } 5333 return true; 5334 } 5335 5336 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 5337 if (!isEnabled()) { 5338 return 0; 5339 } 5340 5341 switch (keyCode) { 5342 case KeyEvent.KEYCODE_ENTER: 5343 mEnterKeyIsDown = true; 5344 if (event.hasNoModifiers()) { 5345 // When mInputContentType is set, we know that we are 5346 // running in a "modern" cupcake environment, so don't need 5347 // to worry about the application trying to capture 5348 // enter key events. 5349 if (mInputContentType != null) { 5350 // If there is an action listener, given them a 5351 // chance to consume the event. 5352 if (mInputContentType.onEditorActionListener != null && 5353 mInputContentType.onEditorActionListener.onEditorAction( 5354 this, EditorInfo.IME_NULL, event)) { 5355 mInputContentType.enterDown = true; 5356 // We are consuming the enter key for them. 5357 return -1; 5358 } 5359 } 5360 5361 // If our editor should move focus when enter is pressed, or 5362 // this is a generated event from an IME action button, then 5363 // don't let it be inserted into the text. 5364 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5365 || shouldAdvanceFocusOnEnter()) { 5366 if (hasOnClickListeners()) { 5367 return 0; 5368 } 5369 return -1; 5370 } 5371 } 5372 break; 5373 5374 case KeyEvent.KEYCODE_DPAD_CENTER: 5375 mDPadCenterIsDown = true; 5376 if (event.hasNoModifiers()) { 5377 if (shouldAdvanceFocusOnEnter()) { 5378 return 0; 5379 } 5380 } 5381 break; 5382 5383 case KeyEvent.KEYCODE_TAB: 5384 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 5385 if (shouldAdvanceFocusOnTab()) { 5386 return 0; 5387 } 5388 } 5389 break; 5390 5391 // Has to be done on key down (and not on key up) to correctly be intercepted. 5392 case KeyEvent.KEYCODE_BACK: 5393 if (mSelectionActionMode != null) { 5394 stopSelectionActionMode(); 5395 return -1; 5396 } 5397 break; 5398 } 5399 5400 if (mInput != null) { 5401 resetErrorChangedFlag(); 5402 5403 boolean doDown = true; 5404 if (otherEvent != null) { 5405 try { 5406 beginBatchEdit(); 5407 final boolean handled = mInput.onKeyOther(this, (Editable) mText, otherEvent); 5408 hideErrorIfUnchanged(); 5409 doDown = false; 5410 if (handled) { 5411 return -1; 5412 } 5413 } catch (AbstractMethodError e) { 5414 // onKeyOther was added after 1.0, so if it isn't 5415 // implemented we need to try to dispatch as a regular down. 5416 } finally { 5417 endBatchEdit(); 5418 } 5419 } 5420 5421 if (doDown) { 5422 beginBatchEdit(); 5423 final boolean handled = mInput.onKeyDown(this, (Editable) mText, keyCode, event); 5424 endBatchEdit(); 5425 hideErrorIfUnchanged(); 5426 if (handled) return 1; 5427 } 5428 } 5429 5430 // bug 650865: sometimes we get a key event before a layout. 5431 // don't try to move around if we don't know the layout. 5432 5433 if (mMovement != null && mLayout != null) { 5434 boolean doDown = true; 5435 if (otherEvent != null) { 5436 try { 5437 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 5438 otherEvent); 5439 doDown = false; 5440 if (handled) { 5441 return -1; 5442 } 5443 } catch (AbstractMethodError e) { 5444 // onKeyOther was added after 1.0, so if it isn't 5445 // implemented we need to try to dispatch as a regular down. 5446 } 5447 } 5448 if (doDown) { 5449 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 5450 return 2; 5451 } 5452 } 5453 5454 return 0; 5455 } 5456 5457 /** 5458 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 5459 * can be recorded. 5460 * @hide 5461 */ 5462 public void resetErrorChangedFlag() { 5463 /* 5464 * Keep track of what the error was before doing the input 5465 * so that if an input filter changed the error, we leave 5466 * that error showing. Otherwise, we take down whatever 5467 * error was showing when the user types something. 5468 */ 5469 mErrorWasChanged = false; 5470 } 5471 5472 /** 5473 * @hide 5474 */ 5475 public void hideErrorIfUnchanged() { 5476 if (mError != null && !mErrorWasChanged) { 5477 setError(null, null); 5478 } 5479 } 5480 5481 @Override 5482 public boolean onKeyUp(int keyCode, KeyEvent event) { 5483 if (!isEnabled()) { 5484 return super.onKeyUp(keyCode, event); 5485 } 5486 5487 switch (keyCode) { 5488 case KeyEvent.KEYCODE_DPAD_CENTER: 5489 mDPadCenterIsDown = false; 5490 if (event.hasNoModifiers()) { 5491 /* 5492 * If there is a click listener, just call through to 5493 * super, which will invoke it. 5494 * 5495 * If there isn't a click listener, try to show the soft 5496 * input method. (It will also 5497 * call performClick(), but that won't do anything in 5498 * this case.) 5499 */ 5500 if (hasOnClickListeners()) { 5501 if (mMovement != null && mText instanceof Editable 5502 && mLayout != null && onCheckIsTextEditor()) { 5503 InputMethodManager imm = InputMethodManager.peekInstance(); 5504 viewClicked(imm); 5505 if (imm != null && mSoftInputShownOnFocus) { 5506 imm.showSoftInput(this, 0); 5507 } 5508 } 5509 } 5510 } 5511 return super.onKeyUp(keyCode, event); 5512 5513 case KeyEvent.KEYCODE_ENTER: 5514 mEnterKeyIsDown = false; 5515 if (event.hasNoModifiers()) { 5516 if (mInputContentType != null 5517 && mInputContentType.onEditorActionListener != null 5518 && mInputContentType.enterDown) { 5519 mInputContentType.enterDown = false; 5520 if (mInputContentType.onEditorActionListener.onEditorAction( 5521 this, EditorInfo.IME_NULL, event)) { 5522 return true; 5523 } 5524 } 5525 5526 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5527 || shouldAdvanceFocusOnEnter()) { 5528 /* 5529 * If there is a click listener, just call through to 5530 * super, which will invoke it. 5531 * 5532 * If there isn't a click listener, try to advance focus, 5533 * but still call through to super, which will reset the 5534 * pressed state and longpress state. (It will also 5535 * call performClick(), but that won't do anything in 5536 * this case.) 5537 */ 5538 if (hasOnClickListeners()) { 5539 View v = focusSearch(FOCUS_DOWN); 5540 5541 if (v != null) { 5542 if (!v.requestFocus(FOCUS_DOWN)) { 5543 throw new IllegalStateException( 5544 "focus search returned a view " + 5545 "that wasn't able to take focus!"); 5546 } 5547 5548 /* 5549 * Return true because we handled the key; super 5550 * will return false because there was no click 5551 * listener. 5552 */ 5553 super.onKeyUp(keyCode, event); 5554 return true; 5555 } else if ((event.getFlags() 5556 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 5557 // No target for next focus, but make sure the IME 5558 // if this came from it. 5559 InputMethodManager imm = InputMethodManager.peekInstance(); 5560 if (imm != null && imm.isActive(this)) { 5561 imm.hideSoftInputFromWindow(getWindowToken(), 0); 5562 } 5563 } 5564 } 5565 } 5566 return super.onKeyUp(keyCode, event); 5567 } 5568 break; 5569 } 5570 5571 if (mInput != null) 5572 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 5573 return true; 5574 5575 if (mMovement != null && mLayout != null) 5576 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 5577 return true; 5578 5579 return super.onKeyUp(keyCode, event); 5580 } 5581 5582 @Override public boolean onCheckIsTextEditor() { 5583 return mInputType != EditorInfo.TYPE_NULL; 5584 } 5585 5586 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5587 if (onCheckIsTextEditor() && isEnabled()) { 5588 if (mInputMethodState == null) { 5589 mInputMethodState = new InputMethodState(); 5590 } 5591 outAttrs.inputType = mInputType; 5592 if (mInputContentType != null) { 5593 outAttrs.imeOptions = mInputContentType.imeOptions; 5594 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 5595 outAttrs.actionLabel = mInputContentType.imeActionLabel; 5596 outAttrs.actionId = mInputContentType.imeActionId; 5597 outAttrs.extras = mInputContentType.extras; 5598 } else { 5599 outAttrs.imeOptions = EditorInfo.IME_NULL; 5600 } 5601 if (focusSearch(FOCUS_DOWN) != null) { 5602 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 5603 } 5604 if (focusSearch(FOCUS_UP) != null) { 5605 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 5606 } 5607 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 5608 == EditorInfo.IME_ACTION_UNSPECIFIED) { 5609 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 5610 // An action has not been set, but the enter key will move to 5611 // the next focus, so set the action to that. 5612 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 5613 } else { 5614 // An action has not been set, and there is no focus to move 5615 // to, so let's just supply a "done" action. 5616 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 5617 } 5618 if (!shouldAdvanceFocusOnEnter()) { 5619 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5620 } 5621 } 5622 if (isMultilineInputType(outAttrs.inputType)) { 5623 // Multi-line text editors should always show an enter key. 5624 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5625 } 5626 outAttrs.hintText = mHint; 5627 if (mText instanceof Editable) { 5628 InputConnection ic = new EditableInputConnection(this); 5629 outAttrs.initialSelStart = getSelectionStart(); 5630 outAttrs.initialSelEnd = getSelectionEnd(); 5631 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 5632 return ic; 5633 } 5634 } 5635 return null; 5636 } 5637 5638 /** 5639 * If this TextView contains editable content, extract a portion of it 5640 * based on the information in <var>request</var> in to <var>outText</var>. 5641 * @return Returns true if the text was successfully extracted, else false. 5642 */ 5643 public boolean extractText(ExtractedTextRequest request, 5644 ExtractedText outText) { 5645 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 5646 EXTRACT_UNKNOWN, outText); 5647 } 5648 5649 static final int EXTRACT_NOTHING = -2; 5650 static final int EXTRACT_UNKNOWN = -1; 5651 5652 boolean extractTextInternal(ExtractedTextRequest request, 5653 int partialStartOffset, int partialEndOffset, int delta, 5654 ExtractedText outText) { 5655 final CharSequence content = mText; 5656 if (content != null) { 5657 if (partialStartOffset != EXTRACT_NOTHING) { 5658 final int N = content.length(); 5659 if (partialStartOffset < 0) { 5660 outText.partialStartOffset = outText.partialEndOffset = -1; 5661 partialStartOffset = 0; 5662 partialEndOffset = N; 5663 } else { 5664 // Now use the delta to determine the actual amount of text 5665 // we need. 5666 partialEndOffset += delta; 5667 // Adjust offsets to ensure we contain full spans. 5668 if (content instanceof Spanned) { 5669 Spanned spanned = (Spanned)content; 5670 Object[] spans = spanned.getSpans(partialStartOffset, 5671 partialEndOffset, ParcelableSpan.class); 5672 int i = spans.length; 5673 while (i > 0) { 5674 i--; 5675 int j = spanned.getSpanStart(spans[i]); 5676 if (j < partialStartOffset) partialStartOffset = j; 5677 j = spanned.getSpanEnd(spans[i]); 5678 if (j > partialEndOffset) partialEndOffset = j; 5679 } 5680 } 5681 outText.partialStartOffset = partialStartOffset; 5682 outText.partialEndOffset = partialEndOffset - delta; 5683 5684 if (partialStartOffset > N) { 5685 partialStartOffset = N; 5686 } else if (partialStartOffset < 0) { 5687 partialStartOffset = 0; 5688 } 5689 if (partialEndOffset > N) { 5690 partialEndOffset = N; 5691 } else if (partialEndOffset < 0) { 5692 partialEndOffset = 0; 5693 } 5694 } 5695 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 5696 outText.text = content.subSequence(partialStartOffset, 5697 partialEndOffset); 5698 } else { 5699 outText.text = TextUtils.substring(content, partialStartOffset, 5700 partialEndOffset); 5701 } 5702 } else { 5703 outText.partialStartOffset = 0; 5704 outText.partialEndOffset = 0; 5705 outText.text = ""; 5706 } 5707 outText.flags = 0; 5708 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 5709 outText.flags |= ExtractedText.FLAG_SELECTING; 5710 } 5711 if (mSingleLine) { 5712 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 5713 } 5714 outText.startOffset = 0; 5715 outText.selectionStart = getSelectionStart(); 5716 outText.selectionEnd = getSelectionEnd(); 5717 return true; 5718 } 5719 return false; 5720 } 5721 5722 boolean reportExtractedText() { 5723 final InputMethodState ims = mInputMethodState; 5724 if (ims != null) { 5725 final boolean contentChanged = ims.mContentChanged; 5726 if (contentChanged || ims.mSelectionModeChanged) { 5727 ims.mContentChanged = false; 5728 ims.mSelectionModeChanged = false; 5729 final ExtractedTextRequest req = mInputMethodState.mExtracting; 5730 if (req != null) { 5731 InputMethodManager imm = InputMethodManager.peekInstance(); 5732 if (imm != null) { 5733 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 5734 + ims.mChangedStart + " end=" + ims.mChangedEnd 5735 + " delta=" + ims.mChangedDelta); 5736 if (ims.mChangedStart < 0 && !contentChanged) { 5737 ims.mChangedStart = EXTRACT_NOTHING; 5738 } 5739 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 5740 ims.mChangedDelta, ims.mTmpExtracted)) { 5741 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 5742 + ims.mTmpExtracted.partialStartOffset 5743 + " end=" + ims.mTmpExtracted.partialEndOffset 5744 + ": " + ims.mTmpExtracted.text); 5745 imm.updateExtractedText(this, req.token, 5746 mInputMethodState.mTmpExtracted); 5747 ims.mChangedStart = EXTRACT_UNKNOWN; 5748 ims.mChangedEnd = EXTRACT_UNKNOWN; 5749 ims.mChangedDelta = 0; 5750 ims.mContentChanged = false; 5751 return true; 5752 } 5753 } 5754 } 5755 } 5756 } 5757 return false; 5758 } 5759 5760 /** 5761 * This is used to remove all style-impacting spans from text before new 5762 * extracted text is being replaced into it, so that we don't have any 5763 * lingering spans applied during the replace. 5764 */ 5765 static void removeParcelableSpans(Spannable spannable, int start, int end) { 5766 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 5767 int i = spans.length; 5768 while (i > 0) { 5769 i--; 5770 spannable.removeSpan(spans[i]); 5771 } 5772 } 5773 5774 /** 5775 * Apply to this text view the given extracted text, as previously 5776 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 5777 */ 5778 public void setExtractedText(ExtractedText text) { 5779 Editable content = getEditableText(); 5780 if (text.text != null) { 5781 if (content == null) { 5782 setText(text.text, TextView.BufferType.EDITABLE); 5783 } else if (text.partialStartOffset < 0) { 5784 removeParcelableSpans(content, 0, content.length()); 5785 content.replace(0, content.length(), text.text); 5786 } else { 5787 final int N = content.length(); 5788 int start = text.partialStartOffset; 5789 if (start > N) start = N; 5790 int end = text.partialEndOffset; 5791 if (end > N) end = N; 5792 removeParcelableSpans(content, start, end); 5793 content.replace(start, end, text.text); 5794 } 5795 } 5796 5797 // Now set the selection position... make sure it is in range, to 5798 // avoid crashes. If this is a partial update, it is possible that 5799 // the underlying text may have changed, causing us problems here. 5800 // Also we just don't want to trust clients to do the right thing. 5801 Spannable sp = (Spannable)getText(); 5802 final int N = sp.length(); 5803 int start = text.selectionStart; 5804 if (start < 0) start = 0; 5805 else if (start > N) start = N; 5806 int end = text.selectionEnd; 5807 if (end < 0) end = 0; 5808 else if (end > N) end = N; 5809 Selection.setSelection(sp, start, end); 5810 5811 // Finally, update the selection mode. 5812 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 5813 MetaKeyKeyListener.startSelecting(this, sp); 5814 } else { 5815 MetaKeyKeyListener.stopSelecting(this, sp); 5816 } 5817 } 5818 5819 /** 5820 * @hide 5821 */ 5822 public void setExtracting(ExtractedTextRequest req) { 5823 if (mInputMethodState != null) { 5824 mInputMethodState.mExtracting = req; 5825 } 5826 // This would stop a possible selection mode, but no such mode is started in case 5827 // extracted mode will start. Some text is selected though, and will trigger an action mode 5828 // in the extracted view. 5829 hideControllers(); 5830 } 5831 5832 /** 5833 * Called by the framework in response to a text completion from 5834 * the current input method, provided by it calling 5835 * {@link InputConnection#commitCompletion 5836 * InputConnection.commitCompletion()}. The default implementation does 5837 * nothing; text views that are supporting auto-completion should override 5838 * this to do their desired behavior. 5839 * 5840 * @param text The auto complete text the user has selected. 5841 */ 5842 public void onCommitCompletion(CompletionInfo text) { 5843 // intentionally empty 5844 } 5845 5846 /** 5847 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 5848 * a dictionnary) from the current input method, provided by it calling 5849 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 5850 * implementation flashes the background of the corrected word to provide feedback to the user. 5851 * 5852 * @param info The auto correct info about the text that was corrected. 5853 */ 5854 public void onCommitCorrection(CorrectionInfo info) { 5855 if (mCorrectionHighlighter == null) { 5856 mCorrectionHighlighter = new CorrectionHighlighter(); 5857 } else { 5858 mCorrectionHighlighter.invalidate(false); 5859 } 5860 5861 mCorrectionHighlighter.highlight(info); 5862 } 5863 5864 private class CorrectionHighlighter { 5865 private final Path mPath = new Path(); 5866 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 5867 private int mStart, mEnd; 5868 private long mFadingStartTime; 5869 private final static int FADE_OUT_DURATION = 400; 5870 5871 public CorrectionHighlighter() { 5872 mPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale); 5873 mPaint.setStyle(Paint.Style.FILL); 5874 } 5875 5876 public void highlight(CorrectionInfo info) { 5877 mStart = info.getOffset(); 5878 mEnd = mStart + info.getNewText().length(); 5879 mFadingStartTime = SystemClock.uptimeMillis(); 5880 5881 if (mStart < 0 || mEnd < 0) { 5882 stopAnimation(); 5883 } 5884 } 5885 5886 public void draw(Canvas canvas, int cursorOffsetVertical) { 5887 if (updatePath() && updatePaint()) { 5888 if (cursorOffsetVertical != 0) { 5889 canvas.translate(0, cursorOffsetVertical); 5890 } 5891 5892 canvas.drawPath(mPath, mPaint); 5893 5894 if (cursorOffsetVertical != 0) { 5895 canvas.translate(0, -cursorOffsetVertical); 5896 } 5897 invalidate(true); 5898 } else { 5899 stopAnimation(); 5900 invalidate(false); 5901 } 5902 } 5903 5904 private boolean updatePaint() { 5905 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 5906 if (duration > FADE_OUT_DURATION) return false; 5907 5908 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 5909 final int highlightColorAlpha = Color.alpha(mHighlightColor); 5910 final int color = (mHighlightColor & 0x00FFFFFF) + 5911 ((int) (highlightColorAlpha * coef) << 24); 5912 mPaint.setColor(color); 5913 return true; 5914 } 5915 5916 private boolean updatePath() { 5917 final Layout layout = TextView.this.mLayout; 5918 if (layout == null) return false; 5919 5920 // Update in case text is edited while the animation is run 5921 final int length = mText.length(); 5922 int start = Math.min(length, mStart); 5923 int end = Math.min(length, mEnd); 5924 5925 mPath.reset(); 5926 TextView.this.mLayout.getSelectionPath(start, end, mPath); 5927 return true; 5928 } 5929 5930 private void invalidate(boolean delayed) { 5931 if (TextView.this.mLayout == null) return; 5932 5933 synchronized (sTempRect) { 5934 mPath.computeBounds(sTempRect, false); 5935 5936 int left = getCompoundPaddingLeft(); 5937 int top = getExtendedPaddingTop() + getVerticalOffset(true); 5938 5939 if (delayed) { 5940 TextView.this.postInvalidateDelayed(16, // 60 Hz update 5941 left + (int) sTempRect.left, top + (int) sTempRect.top, 5942 left + (int) sTempRect.right, top + (int) sTempRect.bottom); 5943 } else { 5944 TextView.this.postInvalidate((int) sTempRect.left, (int) sTempRect.top, 5945 (int) sTempRect.right, (int) sTempRect.bottom); 5946 } 5947 } 5948 } 5949 5950 private void stopAnimation() { 5951 TextView.this.mCorrectionHighlighter = null; 5952 } 5953 } 5954 5955 public void beginBatchEdit() { 5956 mInBatchEditControllers = true; 5957 final InputMethodState ims = mInputMethodState; 5958 if (ims != null) { 5959 int nesting = ++ims.mBatchEditNesting; 5960 if (nesting == 1) { 5961 ims.mCursorChanged = false; 5962 ims.mChangedDelta = 0; 5963 if (ims.mContentChanged) { 5964 // We already have a pending change from somewhere else, 5965 // so turn this into a full update. 5966 ims.mChangedStart = 0; 5967 ims.mChangedEnd = mText.length(); 5968 } else { 5969 ims.mChangedStart = EXTRACT_UNKNOWN; 5970 ims.mChangedEnd = EXTRACT_UNKNOWN; 5971 ims.mContentChanged = false; 5972 } 5973 onBeginBatchEdit(); 5974 } 5975 } 5976 } 5977 5978 public void endBatchEdit() { 5979 mInBatchEditControllers = false; 5980 final InputMethodState ims = mInputMethodState; 5981 if (ims != null) { 5982 int nesting = --ims.mBatchEditNesting; 5983 if (nesting == 0) { 5984 finishBatchEdit(ims); 5985 } 5986 } 5987 } 5988 5989 void ensureEndedBatchEdit() { 5990 final InputMethodState ims = mInputMethodState; 5991 if (ims != null && ims.mBatchEditNesting != 0) { 5992 ims.mBatchEditNesting = 0; 5993 finishBatchEdit(ims); 5994 } 5995 } 5996 5997 void finishBatchEdit(final InputMethodState ims) { 5998 onEndBatchEdit(); 5999 6000 if (ims.mContentChanged || ims.mSelectionModeChanged) { 6001 updateAfterEdit(); 6002 reportExtractedText(); 6003 } else if (ims.mCursorChanged) { 6004 // Cheezy way to get us to report the current cursor location. 6005 invalidateCursor(); 6006 } 6007 } 6008 6009 void updateAfterEdit() { 6010 invalidate(); 6011 int curs = getSelectionStart(); 6012 6013 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6014 registerForPreDraw(); 6015 } 6016 6017 if (curs >= 0) { 6018 mHighlightPathBogus = true; 6019 makeBlink(); 6020 bringPointIntoView(curs); 6021 } 6022 6023 checkForResize(); 6024 } 6025 6026 /** 6027 * Called by the framework in response to a request to begin a batch 6028 * of edit operations through a call to link {@link #beginBatchEdit()}. 6029 */ 6030 public void onBeginBatchEdit() { 6031 // intentionally empty 6032 } 6033 6034 /** 6035 * Called by the framework in response to a request to end a batch 6036 * of edit operations through a call to link {@link #endBatchEdit}. 6037 */ 6038 public void onEndBatchEdit() { 6039 // intentionally empty 6040 } 6041 6042 /** 6043 * Called by the framework in response to a private command from the 6044 * current method, provided by it calling 6045 * {@link InputConnection#performPrivateCommand 6046 * InputConnection.performPrivateCommand()}. 6047 * 6048 * @param action The action name of the command. 6049 * @param data Any additional data for the command. This may be null. 6050 * @return Return true if you handled the command, else false. 6051 */ 6052 public boolean onPrivateIMECommand(String action, Bundle data) { 6053 return false; 6054 } 6055 6056 private void nullLayouts() { 6057 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 6058 mSavedLayout = (BoringLayout) mLayout; 6059 } 6060 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 6061 mSavedHintLayout = (BoringLayout) mHintLayout; 6062 } 6063 6064 mSavedMarqueeModeLayout = mLayout = mHintLayout = null; 6065 6066 // Since it depends on the value of mLayout 6067 prepareCursorControllers(); 6068 } 6069 6070 /** 6071 * Make a new Layout based on the already-measured size of the view, 6072 * on the assumption that it was measured correctly at some point. 6073 */ 6074 private void assumeLayout() { 6075 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6076 6077 if (width < 1) { 6078 width = 0; 6079 } 6080 6081 int physicalWidth = width; 6082 6083 if (mHorizontallyScrolling) { 6084 width = VERY_WIDE; 6085 } 6086 6087 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 6088 physicalWidth, false); 6089 } 6090 6091 @Override 6092 protected void resetResolvedLayoutDirection() { 6093 super.resetResolvedLayoutDirection(); 6094 6095 if (mLayoutAlignment != null && 6096 (mTextAlign == TextAlign.VIEW_START || 6097 mTextAlign == TextAlign.VIEW_END)) { 6098 mLayoutAlignment = null; 6099 } 6100 } 6101 6102 private Layout.Alignment getLayoutAlignment() { 6103 if (mLayoutAlignment == null) { 6104 Layout.Alignment alignment; 6105 TextAlign textAlign = mTextAlign; 6106 switch (textAlign) { 6107 case INHERIT: 6108 // fall through to gravity temporarily 6109 // intention is to inherit value through view hierarchy. 6110 case GRAVITY: 6111 switch (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) { 6112 case Gravity.START: 6113 alignment = Layout.Alignment.ALIGN_NORMAL; 6114 break; 6115 case Gravity.END: 6116 alignment = Layout.Alignment.ALIGN_OPPOSITE; 6117 break; 6118 case Gravity.LEFT: 6119 alignment = Layout.Alignment.ALIGN_LEFT; 6120 break; 6121 case Gravity.RIGHT: 6122 alignment = Layout.Alignment.ALIGN_RIGHT; 6123 break; 6124 case Gravity.CENTER_HORIZONTAL: 6125 alignment = Layout.Alignment.ALIGN_CENTER; 6126 break; 6127 default: 6128 alignment = Layout.Alignment.ALIGN_NORMAL; 6129 break; 6130 } 6131 break; 6132 case TEXT_START: 6133 alignment = Layout.Alignment.ALIGN_NORMAL; 6134 break; 6135 case TEXT_END: 6136 alignment = Layout.Alignment.ALIGN_OPPOSITE; 6137 break; 6138 case CENTER: 6139 alignment = Layout.Alignment.ALIGN_CENTER; 6140 break; 6141 case VIEW_START: 6142 alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 6143 Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT; 6144 break; 6145 case VIEW_END: 6146 alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 6147 Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT; 6148 break; 6149 default: 6150 alignment = Layout.Alignment.ALIGN_NORMAL; 6151 break; 6152 } 6153 mLayoutAlignment = alignment; 6154 } 6155 return mLayoutAlignment; 6156 } 6157 6158 /** 6159 * The width passed in is now the desired layout width, 6160 * not the full view width with padding. 6161 * {@hide} 6162 */ 6163 protected void makeNewLayout(int wantWidth, int hintWidth, 6164 BoringLayout.Metrics boring, 6165 BoringLayout.Metrics hintBoring, 6166 int ellipsisWidth, boolean bringIntoView) { 6167 stopMarquee(); 6168 6169 // Update "old" cached values 6170 mOldMaximum = mMaximum; 6171 mOldMaxMode = mMaxMode; 6172 6173 mHighlightPathBogus = true; 6174 6175 if (wantWidth < 0) { 6176 wantWidth = 0; 6177 } 6178 if (hintWidth < 0) { 6179 hintWidth = 0; 6180 } 6181 6182 Layout.Alignment alignment = getLayoutAlignment(); 6183 boolean shouldEllipsize = mEllipsize != null && mInput == null; 6184 final boolean switchEllipsize = mEllipsize == TruncateAt.MARQUEE && 6185 mMarqueeFadeMode != MARQUEE_FADE_NORMAL; 6186 TruncateAt effectiveEllipsize = mEllipsize; 6187 if (mEllipsize == TruncateAt.MARQUEE && 6188 mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 6189 effectiveEllipsize = TruncateAt.END_SMALL; 6190 } 6191 6192 if (mTextDir == null) { 6193 resolveTextDirection(); 6194 } 6195 6196 mLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, shouldEllipsize, 6197 effectiveEllipsize, effectiveEllipsize == mEllipsize); 6198 if (switchEllipsize) { 6199 TruncateAt oppositeEllipsize = effectiveEllipsize == TruncateAt.MARQUEE ? 6200 TruncateAt.END : TruncateAt.MARQUEE; 6201 mSavedMarqueeModeLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, 6202 shouldEllipsize, oppositeEllipsize, effectiveEllipsize != mEllipsize); 6203 } 6204 6205 shouldEllipsize = mEllipsize != null; 6206 mHintLayout = null; 6207 6208 if (mHint != null) { 6209 if (shouldEllipsize) hintWidth = wantWidth; 6210 6211 if (hintBoring == UNKNOWN_BORING) { 6212 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, 6213 mHintBoring); 6214 if (hintBoring != null) { 6215 mHintBoring = hintBoring; 6216 } 6217 } 6218 6219 if (hintBoring != null) { 6220 if (hintBoring.width <= hintWidth && 6221 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 6222 if (mSavedHintLayout != null) { 6223 mHintLayout = mSavedHintLayout. 6224 replaceOrMake(mHint, mTextPaint, 6225 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6226 hintBoring, mIncludePad); 6227 } else { 6228 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6229 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6230 hintBoring, mIncludePad); 6231 } 6232 6233 mSavedHintLayout = (BoringLayout) mHintLayout; 6234 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 6235 if (mSavedHintLayout != null) { 6236 mHintLayout = mSavedHintLayout. 6237 replaceOrMake(mHint, mTextPaint, 6238 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6239 hintBoring, mIncludePad, mEllipsize, 6240 ellipsisWidth); 6241 } else { 6242 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6243 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6244 hintBoring, mIncludePad, mEllipsize, 6245 ellipsisWidth); 6246 } 6247 } else if (shouldEllipsize) { 6248 mHintLayout = new StaticLayout(mHint, 6249 0, mHint.length(), 6250 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6251 mSpacingAdd, mIncludePad, mEllipsize, 6252 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6253 } else { 6254 mHintLayout = new StaticLayout(mHint, mTextPaint, 6255 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6256 mIncludePad); 6257 } 6258 } else if (shouldEllipsize) { 6259 mHintLayout = new StaticLayout(mHint, 6260 0, mHint.length(), 6261 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6262 mSpacingAdd, mIncludePad, mEllipsize, 6263 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6264 } else { 6265 mHintLayout = new StaticLayout(mHint, mTextPaint, 6266 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6267 mIncludePad); 6268 } 6269 } 6270 6271 if (bringIntoView) { 6272 registerForPreDraw(); 6273 } 6274 6275 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6276 if (!compressText(ellipsisWidth)) { 6277 final int height = mLayoutParams.height; 6278 // If the size of the view does not depend on the size of the text, try to 6279 // start the marquee immediately 6280 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 6281 startMarquee(); 6282 } else { 6283 // Defer the start of the marquee until we know our width (see setFrame()) 6284 mRestartMarquee = true; 6285 } 6286 } 6287 } 6288 6289 // CursorControllers need a non-null mLayout 6290 prepareCursorControllers(); 6291 } 6292 6293 private Layout makeSingleLayout(int wantWidth, BoringLayout.Metrics boring, int ellipsisWidth, 6294 Layout.Alignment alignment, boolean shouldEllipsize, TruncateAt effectiveEllipsize, 6295 boolean useSaved) { 6296 Layout result = null; 6297 if (mText instanceof Spannable) { 6298 result = new DynamicLayout(mText, mTransformed, mTextPaint, wantWidth, 6299 alignment, mTextDir, mSpacingMult, 6300 mSpacingAdd, mIncludePad, mInput == null ? effectiveEllipsize : null, 6301 ellipsisWidth); 6302 } else { 6303 if (boring == UNKNOWN_BORING) { 6304 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6305 if (boring != null) { 6306 mBoring = boring; 6307 } 6308 } 6309 6310 if (boring != null) { 6311 if (boring.width <= wantWidth && 6312 (effectiveEllipsize == null || boring.width <= ellipsisWidth)) { 6313 if (useSaved && mSavedLayout != null) { 6314 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 6315 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6316 boring, mIncludePad); 6317 } else { 6318 result = BoringLayout.make(mTransformed, mTextPaint, 6319 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6320 boring, mIncludePad); 6321 } 6322 6323 if (useSaved) { 6324 mSavedLayout = (BoringLayout) result; 6325 } 6326 } else if (shouldEllipsize && boring.width <= wantWidth) { 6327 if (useSaved && mSavedLayout != null) { 6328 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 6329 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6330 boring, mIncludePad, effectiveEllipsize, 6331 ellipsisWidth); 6332 } else { 6333 result = BoringLayout.make(mTransformed, mTextPaint, 6334 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6335 boring, mIncludePad, effectiveEllipsize, 6336 ellipsisWidth); 6337 } 6338 } else if (shouldEllipsize) { 6339 result = new StaticLayout(mTransformed, 6340 0, mTransformed.length(), 6341 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 6342 mSpacingAdd, mIncludePad, effectiveEllipsize, 6343 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6344 } else { 6345 result = new StaticLayout(mTransformed, mTextPaint, 6346 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6347 mIncludePad); 6348 } 6349 } else if (shouldEllipsize) { 6350 result = new StaticLayout(mTransformed, 6351 0, mTransformed.length(), 6352 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 6353 mSpacingAdd, mIncludePad, effectiveEllipsize, 6354 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6355 } else { 6356 result = new StaticLayout(mTransformed, mTextPaint, 6357 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6358 mIncludePad); 6359 } 6360 } 6361 return result; 6362 } 6363 6364 private boolean compressText(float width) { 6365 if (isHardwareAccelerated()) return false; 6366 6367 // Only compress the text if it hasn't been compressed by the previous pass 6368 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 6369 mTextPaint.getTextScaleX() == 1.0f) { 6370 final float textWidth = mLayout.getLineWidth(0); 6371 final float overflow = (textWidth + 1.0f - width) / width; 6372 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 6373 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 6374 post(new Runnable() { 6375 public void run() { 6376 requestLayout(); 6377 } 6378 }); 6379 return true; 6380 } 6381 } 6382 6383 return false; 6384 } 6385 6386 private static int desired(Layout layout) { 6387 int n = layout.getLineCount(); 6388 CharSequence text = layout.getText(); 6389 float max = 0; 6390 6391 // if any line was wrapped, we can't use it. 6392 // but it's ok for the last line not to have a newline 6393 6394 for (int i = 0; i < n - 1; i++) { 6395 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 6396 return -1; 6397 } 6398 6399 for (int i = 0; i < n; i++) { 6400 max = Math.max(max, layout.getLineWidth(i)); 6401 } 6402 6403 return (int) FloatMath.ceil(max); 6404 } 6405 6406 /** 6407 * Set whether the TextView includes extra top and bottom padding to make 6408 * room for accents that go above the normal ascent and descent. 6409 * The default is true. 6410 * 6411 * @attr ref android.R.styleable#TextView_includeFontPadding 6412 */ 6413 public void setIncludeFontPadding(boolean includepad) { 6414 if (mIncludePad != includepad) { 6415 mIncludePad = includepad; 6416 6417 if (mLayout != null) { 6418 nullLayouts(); 6419 requestLayout(); 6420 invalidate(); 6421 } 6422 } 6423 } 6424 6425 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 6426 6427 @Override 6428 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 6429 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 6430 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 6431 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 6432 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 6433 6434 int width; 6435 int height; 6436 6437 BoringLayout.Metrics boring = UNKNOWN_BORING; 6438 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 6439 6440 if (mTextDir == null) { 6441 resolveTextDirection(); 6442 } 6443 6444 int des = -1; 6445 boolean fromexisting = false; 6446 6447 if (widthMode == MeasureSpec.EXACTLY) { 6448 // Parent has told us how big to be. So be it. 6449 width = widthSize; 6450 } else { 6451 if (mLayout != null && mEllipsize == null) { 6452 des = desired(mLayout); 6453 } 6454 6455 if (des < 0) { 6456 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6457 if (boring != null) { 6458 mBoring = boring; 6459 } 6460 } else { 6461 fromexisting = true; 6462 } 6463 6464 if (boring == null || boring == UNKNOWN_BORING) { 6465 if (des < 0) { 6466 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 6467 } 6468 6469 width = des; 6470 } else { 6471 width = boring.width; 6472 } 6473 6474 final Drawables dr = mDrawables; 6475 if (dr != null) { 6476 width = Math.max(width, dr.mDrawableWidthTop); 6477 width = Math.max(width, dr.mDrawableWidthBottom); 6478 } 6479 6480 if (mHint != null) { 6481 int hintDes = -1; 6482 int hintWidth; 6483 6484 if (mHintLayout != null && mEllipsize == null) { 6485 hintDes = desired(mHintLayout); 6486 } 6487 6488 if (hintDes < 0) { 6489 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 6490 if (hintBoring != null) { 6491 mHintBoring = hintBoring; 6492 } 6493 } 6494 6495 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 6496 if (hintDes < 0) { 6497 hintDes = (int) FloatMath.ceil( 6498 Layout.getDesiredWidth(mHint, mTextPaint)); 6499 } 6500 6501 hintWidth = hintDes; 6502 } else { 6503 hintWidth = hintBoring.width; 6504 } 6505 6506 if (hintWidth > width) { 6507 width = hintWidth; 6508 } 6509 } 6510 6511 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 6512 6513 if (mMaxWidthMode == EMS) { 6514 width = Math.min(width, mMaxWidth * getLineHeight()); 6515 } else { 6516 width = Math.min(width, mMaxWidth); 6517 } 6518 6519 if (mMinWidthMode == EMS) { 6520 width = Math.max(width, mMinWidth * getLineHeight()); 6521 } else { 6522 width = Math.max(width, mMinWidth); 6523 } 6524 6525 // Check against our minimum width 6526 width = Math.max(width, getSuggestedMinimumWidth()); 6527 6528 if (widthMode == MeasureSpec.AT_MOST) { 6529 width = Math.min(widthSize, width); 6530 } 6531 } 6532 6533 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6534 int unpaddedWidth = want; 6535 6536 if (mHorizontallyScrolling) want = VERY_WIDE; 6537 6538 int hintWant = want; 6539 int hintWidth = (mHintLayout == null) ? hintWant : mHintLayout.getWidth(); 6540 6541 if (mLayout == null) { 6542 makeNewLayout(want, hintWant, boring, hintBoring, 6543 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6544 } else { 6545 final boolean layoutChanged = (mLayout.getWidth() != want) || 6546 (hintWidth != hintWant) || 6547 (mLayout.getEllipsizedWidth() != 6548 width - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6549 6550 final boolean widthChanged = (mHint == null) && 6551 (mEllipsize == null) && 6552 (want > mLayout.getWidth()) && 6553 (mLayout instanceof BoringLayout || (fromexisting && des >= 0 && des <= want)); 6554 6555 final boolean maximumChanged = (mMaxMode != mOldMaxMode) || (mMaximum != mOldMaximum); 6556 6557 if (layoutChanged || maximumChanged) { 6558 if (!maximumChanged && widthChanged) { 6559 mLayout.increaseWidthTo(want); 6560 } else { 6561 makeNewLayout(want, hintWant, boring, hintBoring, 6562 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6563 } 6564 } else { 6565 // Nothing has changed 6566 } 6567 } 6568 6569 if (heightMode == MeasureSpec.EXACTLY) { 6570 // Parent has told us how big to be. So be it. 6571 height = heightSize; 6572 mDesiredHeightAtMeasure = -1; 6573 } else { 6574 int desired = getDesiredHeight(); 6575 6576 height = desired; 6577 mDesiredHeightAtMeasure = desired; 6578 6579 if (heightMode == MeasureSpec.AT_MOST) { 6580 height = Math.min(desired, heightSize); 6581 } 6582 } 6583 6584 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 6585 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 6586 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 6587 } 6588 6589 /* 6590 * We didn't let makeNewLayout() register to bring the cursor into view, 6591 * so do it here if there is any possibility that it is needed. 6592 */ 6593 if (mMovement != null || 6594 mLayout.getWidth() > unpaddedWidth || 6595 mLayout.getHeight() > unpaddedHeight) { 6596 registerForPreDraw(); 6597 } else { 6598 scrollTo(0, 0); 6599 } 6600 6601 setMeasuredDimension(width, height); 6602 } 6603 6604 private int getDesiredHeight() { 6605 return Math.max( 6606 getDesiredHeight(mLayout, true), 6607 getDesiredHeight(mHintLayout, mEllipsize != null)); 6608 } 6609 6610 private int getDesiredHeight(Layout layout, boolean cap) { 6611 if (layout == null) { 6612 return 0; 6613 } 6614 6615 int linecount = layout.getLineCount(); 6616 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 6617 int desired = layout.getLineTop(linecount); 6618 6619 final Drawables dr = mDrawables; 6620 if (dr != null) { 6621 desired = Math.max(desired, dr.mDrawableHeightLeft); 6622 desired = Math.max(desired, dr.mDrawableHeightRight); 6623 } 6624 6625 desired += pad; 6626 6627 if (mMaxMode == LINES) { 6628 /* 6629 * Don't cap the hint to a certain number of lines. 6630 * (Do cap it, though, if we have a maximum pixel height.) 6631 */ 6632 if (cap) { 6633 if (linecount > mMaximum) { 6634 desired = layout.getLineTop(mMaximum); 6635 6636 if (dr != null) { 6637 desired = Math.max(desired, dr.mDrawableHeightLeft); 6638 desired = Math.max(desired, dr.mDrawableHeightRight); 6639 } 6640 6641 desired += pad; 6642 linecount = mMaximum; 6643 } 6644 } 6645 } else { 6646 desired = Math.min(desired, mMaximum); 6647 } 6648 6649 if (mMinMode == LINES) { 6650 if (linecount < mMinimum) { 6651 desired += getLineHeight() * (mMinimum - linecount); 6652 } 6653 } else { 6654 desired = Math.max(desired, mMinimum); 6655 } 6656 6657 // Check against our minimum height 6658 desired = Math.max(desired, getSuggestedMinimumHeight()); 6659 6660 return desired; 6661 } 6662 6663 /** 6664 * Check whether a change to the existing text layout requires a 6665 * new view layout. 6666 */ 6667 private void checkForResize() { 6668 boolean sizeChanged = false; 6669 6670 if (mLayout != null) { 6671 // Check if our width changed 6672 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 6673 sizeChanged = true; 6674 invalidate(); 6675 } 6676 6677 // Check if our height changed 6678 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 6679 int desiredHeight = getDesiredHeight(); 6680 6681 if (desiredHeight != this.getHeight()) { 6682 sizeChanged = true; 6683 } 6684 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 6685 if (mDesiredHeightAtMeasure >= 0) { 6686 int desiredHeight = getDesiredHeight(); 6687 6688 if (desiredHeight != mDesiredHeightAtMeasure) { 6689 sizeChanged = true; 6690 } 6691 } 6692 } 6693 } 6694 6695 if (sizeChanged) { 6696 requestLayout(); 6697 // caller will have already invalidated 6698 } 6699 } 6700 6701 /** 6702 * Check whether entirely new text requires a new view layout 6703 * or merely a new text layout. 6704 */ 6705 private void checkForRelayout() { 6706 // If we have a fixed width, we can just swap in a new text layout 6707 // if the text height stays the same or if the view height is fixed. 6708 6709 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 6710 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 6711 (mHint == null || mHintLayout != null) && 6712 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 6713 // Static width, so try making a new text layout. 6714 6715 int oldht = mLayout.getHeight(); 6716 int want = mLayout.getWidth(); 6717 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 6718 6719 /* 6720 * No need to bring the text into view, since the size is not 6721 * changing (unless we do the requestLayout(), in which case it 6722 * will happen at measure). 6723 */ 6724 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 6725 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 6726 false); 6727 6728 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 6729 // In a fixed-height view, so use our new text layout. 6730 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 6731 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 6732 invalidate(); 6733 return; 6734 } 6735 6736 // Dynamic height, but height has stayed the same, 6737 // so use our new text layout. 6738 if (mLayout.getHeight() == oldht && 6739 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 6740 invalidate(); 6741 return; 6742 } 6743 } 6744 6745 // We lose: the height has changed and we have a dynamic height. 6746 // Request a new view layout using our new text layout. 6747 requestLayout(); 6748 invalidate(); 6749 } else { 6750 // Dynamic width, so we have no choice but to request a new 6751 // view layout with a new text layout. 6752 nullLayouts(); 6753 requestLayout(); 6754 invalidate(); 6755 } 6756 } 6757 6758 /** 6759 * Returns true if anything changed. 6760 */ 6761 private boolean bringTextIntoView() { 6762 int line = 0; 6763 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6764 line = mLayout.getLineCount() - 1; 6765 } 6766 6767 Layout.Alignment a = mLayout.getParagraphAlignment(line); 6768 int dir = mLayout.getParagraphDirection(line); 6769 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6770 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6771 int ht = mLayout.getHeight(); 6772 6773 int scrollx, scrolly; 6774 6775 // Convert to left, center, or right alignment. 6776 if (a == Layout.Alignment.ALIGN_NORMAL) { 6777 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_LEFT : 6778 Layout.Alignment.ALIGN_RIGHT; 6779 } else if (a == Layout.Alignment.ALIGN_OPPOSITE){ 6780 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_RIGHT : 6781 Layout.Alignment.ALIGN_LEFT; 6782 } 6783 6784 if (a == Layout.Alignment.ALIGN_CENTER) { 6785 /* 6786 * Keep centered if possible, or, if it is too wide to fit, 6787 * keep leading edge in view. 6788 */ 6789 6790 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6791 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6792 6793 if (right - left < hspace) { 6794 scrollx = (right + left) / 2 - hspace / 2; 6795 } else { 6796 if (dir < 0) { 6797 scrollx = right - hspace; 6798 } else { 6799 scrollx = left; 6800 } 6801 } 6802 } else if (a == Layout.Alignment.ALIGN_RIGHT) { 6803 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6804 scrollx = right - hspace; 6805 } else { // a == Layout.Alignment.ALIGN_LEFT (will also be the default) 6806 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6807 } 6808 6809 if (ht < vspace) { 6810 scrolly = 0; 6811 } else { 6812 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6813 scrolly = ht - vspace; 6814 } else { 6815 scrolly = 0; 6816 } 6817 } 6818 6819 if (scrollx != mScrollX || scrolly != mScrollY) { 6820 scrollTo(scrollx, scrolly); 6821 return true; 6822 } else { 6823 return false; 6824 } 6825 } 6826 6827 /** 6828 * Move the point, specified by the offset, into the view if it is needed. 6829 * This has to be called after layout. Returns true if anything changed. 6830 */ 6831 public boolean bringPointIntoView(int offset) { 6832 boolean changed = false; 6833 6834 if (mLayout == null) return changed; 6835 6836 int line = mLayout.getLineForOffset(offset); 6837 6838 // FIXME: Is it okay to truncate this, or should we round? 6839 final int x = (int)mLayout.getPrimaryHorizontal(offset); 6840 final int top = mLayout.getLineTop(line); 6841 final int bottom = mLayout.getLineTop(line + 1); 6842 6843 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6844 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6845 int ht = mLayout.getHeight(); 6846 6847 int grav; 6848 6849 switch (mLayout.getParagraphAlignment(line)) { 6850 case ALIGN_LEFT: 6851 grav = 1; 6852 break; 6853 case ALIGN_RIGHT: 6854 grav = -1; 6855 break; 6856 case ALIGN_NORMAL: 6857 grav = mLayout.getParagraphDirection(line); 6858 break; 6859 case ALIGN_OPPOSITE: 6860 grav = -mLayout.getParagraphDirection(line); 6861 break; 6862 case ALIGN_CENTER: 6863 default: 6864 grav = 0; 6865 break; 6866 } 6867 6868 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6869 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6870 6871 int hslack = (bottom - top) / 2; 6872 int vslack = hslack; 6873 6874 if (vslack > vspace / 4) 6875 vslack = vspace / 4; 6876 if (hslack > hspace / 4) 6877 hslack = hspace / 4; 6878 6879 int hs = mScrollX; 6880 int vs = mScrollY; 6881 6882 if (top - vs < vslack) 6883 vs = top - vslack; 6884 if (bottom - vs > vspace - vslack) 6885 vs = bottom - (vspace - vslack); 6886 if (ht - vs < vspace) 6887 vs = ht - vspace; 6888 if (0 - vs > 0) 6889 vs = 0; 6890 6891 if (grav != 0) { 6892 if (x - hs < hslack) { 6893 hs = x - hslack; 6894 } 6895 if (x - hs > hspace - hslack) { 6896 hs = x - (hspace - hslack); 6897 } 6898 } 6899 6900 if (grav < 0) { 6901 if (left - hs > 0) 6902 hs = left; 6903 if (right - hs < hspace) 6904 hs = right - hspace; 6905 } else if (grav > 0) { 6906 if (right - hs < hspace) 6907 hs = right - hspace; 6908 if (left - hs > 0) 6909 hs = left; 6910 } else /* grav == 0 */ { 6911 if (right - left <= hspace) { 6912 /* 6913 * If the entire text fits, center it exactly. 6914 */ 6915 hs = left - (hspace - (right - left)) / 2; 6916 } else if (x > right - hslack) { 6917 /* 6918 * If we are near the right edge, keep the right edge 6919 * at the edge of the view. 6920 */ 6921 hs = right - hspace; 6922 } else if (x < left + hslack) { 6923 /* 6924 * If we are near the left edge, keep the left edge 6925 * at the edge of the view. 6926 */ 6927 hs = left; 6928 } else if (left > hs) { 6929 /* 6930 * Is there whitespace visible at the left? Fix it if so. 6931 */ 6932 hs = left; 6933 } else if (right < hs + hspace) { 6934 /* 6935 * Is there whitespace visible at the right? Fix it if so. 6936 */ 6937 hs = right - hspace; 6938 } else { 6939 /* 6940 * Otherwise, float as needed. 6941 */ 6942 if (x - hs < hslack) { 6943 hs = x - hslack; 6944 } 6945 if (x - hs > hspace - hslack) { 6946 hs = x - (hspace - hslack); 6947 } 6948 } 6949 } 6950 6951 if (hs != mScrollX || vs != mScrollY) { 6952 if (mScroller == null) { 6953 scrollTo(hs, vs); 6954 } else { 6955 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 6956 int dx = hs - mScrollX; 6957 int dy = vs - mScrollY; 6958 6959 if (duration > ANIMATED_SCROLL_GAP) { 6960 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 6961 awakenScrollBars(mScroller.getDuration()); 6962 invalidate(); 6963 } else { 6964 if (!mScroller.isFinished()) { 6965 mScroller.abortAnimation(); 6966 } 6967 6968 scrollBy(dx, dy); 6969 } 6970 6971 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 6972 } 6973 6974 changed = true; 6975 } 6976 6977 if (isFocused()) { 6978 // This offsets because getInterestingRect() is in terms of viewport coordinates, but 6979 // requestRectangleOnScreen() is in terms of content coordinates. 6980 6981 if (mTempRect == null) mTempRect = new Rect(); 6982 // The offsets here are to ensure the rectangle we are using is 6983 // within our view bounds, in case the cursor is on the far left 6984 // or right. If it isn't withing the bounds, then this request 6985 // will be ignored. 6986 mTempRect.set(x - 2, top, x + 2, bottom); 6987 getInterestingRect(mTempRect, line); 6988 mTempRect.offset(mScrollX, mScrollY); 6989 6990 if (requestRectangleOnScreen(mTempRect)) { 6991 changed = true; 6992 } 6993 } 6994 6995 return changed; 6996 } 6997 6998 /** 6999 * Move the cursor, if needed, so that it is at an offset that is visible 7000 * to the user. This will not move the cursor if it represents more than 7001 * one character (a selection range). This will only work if the 7002 * TextView contains spannable text; otherwise it will do nothing. 7003 * 7004 * @return True if the cursor was actually moved, false otherwise. 7005 */ 7006 public boolean moveCursorToVisibleOffset() { 7007 if (!(mText instanceof Spannable)) { 7008 return false; 7009 } 7010 int start = getSelectionStart(); 7011 int end = getSelectionEnd(); 7012 if (start != end) { 7013 return false; 7014 } 7015 7016 // First: make sure the line is visible on screen: 7017 7018 int line = mLayout.getLineForOffset(start); 7019 7020 final int top = mLayout.getLineTop(line); 7021 final int bottom = mLayout.getLineTop(line + 1); 7022 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 7023 int vslack = (bottom - top) / 2; 7024 if (vslack > vspace / 4) 7025 vslack = vspace / 4; 7026 final int vs = mScrollY; 7027 7028 if (top < (vs+vslack)) { 7029 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 7030 } else if (bottom > (vspace+vs-vslack)) { 7031 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 7032 } 7033 7034 // Next: make sure the character is visible on screen: 7035 7036 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 7037 final int hs = mScrollX; 7038 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 7039 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 7040 7041 // line might contain bidirectional text 7042 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 7043 final int highChar = leftChar > rightChar ? leftChar : rightChar; 7044 7045 int newStart = start; 7046 if (newStart < lowChar) { 7047 newStart = lowChar; 7048 } else if (newStart > highChar) { 7049 newStart = highChar; 7050 } 7051 7052 if (newStart != start) { 7053 Selection.setSelection((Spannable)mText, newStart); 7054 return true; 7055 } 7056 7057 return false; 7058 } 7059 7060 @Override 7061 public void computeScroll() { 7062 if (mScroller != null) { 7063 if (mScroller.computeScrollOffset()) { 7064 mScrollX = mScroller.getCurrX(); 7065 mScrollY = mScroller.getCurrY(); 7066 invalidateParentCaches(); 7067 postInvalidate(); // So we draw again 7068 } 7069 } 7070 } 7071 7072 private void getInterestingRect(Rect r, int line) { 7073 convertFromViewportToContentCoordinates(r); 7074 7075 // Rectangle can can be expanded on first and last line to take 7076 // padding into account. 7077 // TODO Take left/right padding into account too? 7078 if (line == 0) r.top -= getExtendedPaddingTop(); 7079 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 7080 } 7081 7082 private void convertFromViewportToContentCoordinates(Rect r) { 7083 final int horizontalOffset = viewportToContentHorizontalOffset(); 7084 r.left += horizontalOffset; 7085 r.right += horizontalOffset; 7086 7087 final int verticalOffset = viewportToContentVerticalOffset(); 7088 r.top += verticalOffset; 7089 r.bottom += verticalOffset; 7090 } 7091 7092 private int viewportToContentHorizontalOffset() { 7093 return getCompoundPaddingLeft() - mScrollX; 7094 } 7095 7096 private int viewportToContentVerticalOffset() { 7097 int offset = getExtendedPaddingTop() - mScrollY; 7098 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 7099 offset += getVerticalOffset(false); 7100 } 7101 return offset; 7102 } 7103 7104 @Override 7105 public void debug(int depth) { 7106 super.debug(depth); 7107 7108 String output = debugIndent(depth); 7109 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 7110 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 7111 + "} "; 7112 7113 if (mText != null) { 7114 7115 output += "mText=\"" + mText + "\" "; 7116 if (mLayout != null) { 7117 output += "mLayout width=" + mLayout.getWidth() 7118 + " height=" + mLayout.getHeight(); 7119 } 7120 } else { 7121 output += "mText=NULL"; 7122 } 7123 Log.d(VIEW_LOG_TAG, output); 7124 } 7125 7126 /** 7127 * Convenience for {@link Selection#getSelectionStart}. 7128 */ 7129 @ViewDebug.ExportedProperty(category = "text") 7130 public int getSelectionStart() { 7131 return Selection.getSelectionStart(getText()); 7132 } 7133 7134 /** 7135 * Convenience for {@link Selection#getSelectionEnd}. 7136 */ 7137 @ViewDebug.ExportedProperty(category = "text") 7138 public int getSelectionEnd() { 7139 return Selection.getSelectionEnd(getText()); 7140 } 7141 7142 /** 7143 * Return true iff there is a selection inside this text view. 7144 */ 7145 public boolean hasSelection() { 7146 final int selectionStart = getSelectionStart(); 7147 final int selectionEnd = getSelectionEnd(); 7148 7149 return selectionStart >= 0 && selectionStart != selectionEnd; 7150 } 7151 7152 /** 7153 * Sets the properties of this field (lines, horizontally scrolling, 7154 * transformation method) to be for a single-line input. 7155 * 7156 * @attr ref android.R.styleable#TextView_singleLine 7157 */ 7158 public void setSingleLine() { 7159 setSingleLine(true); 7160 } 7161 7162 /** 7163 * Sets the properties of this field to transform input to ALL CAPS 7164 * display. This may use a "small caps" formatting if available. 7165 * This setting will be ignored if this field is editable or selectable. 7166 * 7167 * This call replaces the current transformation method. Disabling this 7168 * will not necessarily restore the previous behavior from before this 7169 * was enabled. 7170 * 7171 * @see #setTransformationMethod(TransformationMethod) 7172 * @attr ref android.R.styleable#TextView_textAllCaps 7173 */ 7174 public void setAllCaps(boolean allCaps) { 7175 if (allCaps) { 7176 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 7177 } else { 7178 setTransformationMethod(null); 7179 } 7180 } 7181 7182 /** 7183 * If true, sets the properties of this field (number of lines, horizontally scrolling, 7184 * transformation method) to be for a single-line input; if false, restores these to the default 7185 * conditions. 7186 * 7187 * Note that the default conditions are not necessarily those that were in effect prior this 7188 * method, and you may want to reset these properties to your custom values. 7189 * 7190 * @attr ref android.R.styleable#TextView_singleLine 7191 */ 7192 @android.view.RemotableViewMethod 7193 public void setSingleLine(boolean singleLine) { 7194 // Could be used, but may break backward compatibility. 7195 // if (mSingleLine == singleLine) return; 7196 setInputTypeSingleLine(singleLine); 7197 applySingleLine(singleLine, true, true); 7198 } 7199 7200 /** 7201 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 7202 * @param singleLine 7203 */ 7204 private void setInputTypeSingleLine(boolean singleLine) { 7205 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 7206 if (singleLine) { 7207 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7208 } else { 7209 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7210 } 7211 } 7212 } 7213 7214 private void applySingleLine(boolean singleLine, boolean applyTransformation, 7215 boolean changeMaxLines) { 7216 mSingleLine = singleLine; 7217 if (singleLine) { 7218 setLines(1); 7219 setHorizontallyScrolling(true); 7220 if (applyTransformation) { 7221 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 7222 } 7223 } else { 7224 if (changeMaxLines) { 7225 setMaxLines(Integer.MAX_VALUE); 7226 } 7227 setHorizontallyScrolling(false); 7228 if (applyTransformation) { 7229 setTransformationMethod(null); 7230 } 7231 } 7232 } 7233 7234 /** 7235 * Causes words in the text that are longer than the view is wide 7236 * to be ellipsized instead of broken in the middle. You may also 7237 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 7238 * to constrain the text to a single line. Use <code>null</code> 7239 * to turn off ellipsizing. 7240 * 7241 * If {@link #setMaxLines} has been used to set two or more lines, 7242 * {@link android.text.TextUtils.TruncateAt#END} and 7243 * {@link android.text.TextUtils.TruncateAt#MARQUEE}* are only supported 7244 * (other ellipsizing types will not do anything). 7245 * 7246 * @attr ref android.R.styleable#TextView_ellipsize 7247 */ 7248 public void setEllipsize(TextUtils.TruncateAt where) { 7249 // TruncateAt is an enum. != comparison is ok between these singleton objects. 7250 if (mEllipsize != where) { 7251 mEllipsize = where; 7252 7253 if (mLayout != null) { 7254 nullLayouts(); 7255 requestLayout(); 7256 invalidate(); 7257 } 7258 } 7259 } 7260 7261 /** 7262 * Sets how many times to repeat the marquee animation. Only applied if the 7263 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 7264 * 7265 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 7266 */ 7267 public void setMarqueeRepeatLimit(int marqueeLimit) { 7268 mMarqueeRepeatLimit = marqueeLimit; 7269 } 7270 7271 /** 7272 * Returns where, if anywhere, words that are longer than the view 7273 * is wide should be ellipsized. 7274 */ 7275 @ViewDebug.ExportedProperty 7276 public TextUtils.TruncateAt getEllipsize() { 7277 return mEllipsize; 7278 } 7279 7280 /** 7281 * Set the TextView so that when it takes focus, all the text is 7282 * selected. 7283 * 7284 * @attr ref android.R.styleable#TextView_selectAllOnFocus 7285 */ 7286 @android.view.RemotableViewMethod 7287 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 7288 mSelectAllOnFocus = selectAllOnFocus; 7289 7290 if (selectAllOnFocus && !(mText instanceof Spannable)) { 7291 setText(mText, BufferType.SPANNABLE); 7292 } 7293 } 7294 7295 /** 7296 * Set whether the cursor is visible. The default is true. 7297 * 7298 * @attr ref android.R.styleable#TextView_cursorVisible 7299 */ 7300 @android.view.RemotableViewMethod 7301 public void setCursorVisible(boolean visible) { 7302 if (mCursorVisible != visible) { 7303 mCursorVisible = visible; 7304 invalidate(); 7305 7306 makeBlink(); 7307 7308 // InsertionPointCursorController depends on mCursorVisible 7309 prepareCursorControllers(); 7310 } 7311 } 7312 7313 private boolean isCursorVisible() { 7314 return mCursorVisible && isTextEditable(); 7315 } 7316 7317 private boolean canMarquee() { 7318 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 7319 return width > 0 && (mLayout.getLineWidth(0) > width || 7320 (mMarqueeFadeMode != MARQUEE_FADE_NORMAL && mSavedMarqueeModeLayout != null && 7321 mSavedMarqueeModeLayout.getLineWidth(0) > width)); 7322 } 7323 7324 private void startMarquee() { 7325 // Do not ellipsize EditText 7326 if (mInput != null) return; 7327 7328 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 7329 return; 7330 } 7331 7332 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 7333 getLineCount() == 1 && canMarquee()) { 7334 7335 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 7336 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_FADE; 7337 final Layout tmp = mLayout; 7338 mLayout = mSavedMarqueeModeLayout; 7339 mSavedMarqueeModeLayout = tmp; 7340 setHorizontalFadingEdgeEnabled(true); 7341 requestLayout(); 7342 invalidate(); 7343 } 7344 7345 if (mMarquee == null) mMarquee = new Marquee(this); 7346 mMarquee.start(mMarqueeRepeatLimit); 7347 } 7348 } 7349 7350 private void stopMarquee() { 7351 if (mMarquee != null && !mMarquee.isStopped()) { 7352 mMarquee.stop(); 7353 } 7354 7355 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_FADE) { 7356 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 7357 final Layout tmp = mSavedMarqueeModeLayout; 7358 mSavedMarqueeModeLayout = mLayout; 7359 mLayout = tmp; 7360 setHorizontalFadingEdgeEnabled(false); 7361 requestLayout(); 7362 invalidate(); 7363 } 7364 } 7365 7366 private void startStopMarquee(boolean start) { 7367 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7368 if (start) { 7369 startMarquee(); 7370 } else { 7371 stopMarquee(); 7372 } 7373 } 7374 } 7375 7376 private static final class Marquee extends Handler { 7377 // TODO: Add an option to configure this 7378 private static final float MARQUEE_DELTA_MAX = 0.07f; 7379 private static final int MARQUEE_DELAY = 1200; 7380 private static final int MARQUEE_RESTART_DELAY = 1200; 7381 private static final int MARQUEE_RESOLUTION = 1000 / 30; 7382 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 7383 7384 private static final byte MARQUEE_STOPPED = 0x0; 7385 private static final byte MARQUEE_STARTING = 0x1; 7386 private static final byte MARQUEE_RUNNING = 0x2; 7387 7388 private static final int MESSAGE_START = 0x1; 7389 private static final int MESSAGE_TICK = 0x2; 7390 private static final int MESSAGE_RESTART = 0x3; 7391 7392 private final WeakReference<TextView> mView; 7393 7394 private byte mStatus = MARQUEE_STOPPED; 7395 private final float mScrollUnit; 7396 private float mMaxScroll; 7397 float mMaxFadeScroll; 7398 private float mGhostStart; 7399 private float mGhostOffset; 7400 private float mFadeStop; 7401 private int mRepeatLimit; 7402 7403 float mScroll; 7404 7405 Marquee(TextView v) { 7406 final float density = v.getContext().getResources().getDisplayMetrics().density; 7407 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 7408 mView = new WeakReference<TextView>(v); 7409 } 7410 7411 @Override 7412 public void handleMessage(Message msg) { 7413 switch (msg.what) { 7414 case MESSAGE_START: 7415 mStatus = MARQUEE_RUNNING; 7416 tick(); 7417 break; 7418 case MESSAGE_TICK: 7419 tick(); 7420 break; 7421 case MESSAGE_RESTART: 7422 if (mStatus == MARQUEE_RUNNING) { 7423 if (mRepeatLimit >= 0) { 7424 mRepeatLimit--; 7425 } 7426 start(mRepeatLimit); 7427 } 7428 break; 7429 } 7430 } 7431 7432 void tick() { 7433 if (mStatus != MARQUEE_RUNNING) { 7434 return; 7435 } 7436 7437 removeMessages(MESSAGE_TICK); 7438 7439 final TextView textView = mView.get(); 7440 if (textView != null && (textView.isFocused() || textView.isSelected())) { 7441 mScroll += mScrollUnit; 7442 if (mScroll > mMaxScroll) { 7443 mScroll = mMaxScroll; 7444 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 7445 } else { 7446 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 7447 } 7448 textView.invalidate(); 7449 } 7450 } 7451 7452 void stop() { 7453 mStatus = MARQUEE_STOPPED; 7454 removeMessages(MESSAGE_START); 7455 removeMessages(MESSAGE_RESTART); 7456 removeMessages(MESSAGE_TICK); 7457 resetScroll(); 7458 } 7459 7460 private void resetScroll() { 7461 mScroll = 0.0f; 7462 final TextView textView = mView.get(); 7463 if (textView != null) textView.invalidate(); 7464 } 7465 7466 void start(int repeatLimit) { 7467 if (repeatLimit == 0) { 7468 stop(); 7469 return; 7470 } 7471 mRepeatLimit = repeatLimit; 7472 final TextView textView = mView.get(); 7473 if (textView != null && textView.mLayout != null) { 7474 mStatus = MARQUEE_STARTING; 7475 mScroll = 0.0f; 7476 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 7477 textView.getCompoundPaddingRight(); 7478 final float lineWidth = textView.mLayout.getLineWidth(0); 7479 final float gap = textWidth / 3.0f; 7480 mGhostStart = lineWidth - textWidth + gap; 7481 mMaxScroll = mGhostStart + textWidth; 7482 mGhostOffset = lineWidth + gap; 7483 mFadeStop = lineWidth + textWidth / 6.0f; 7484 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 7485 7486 textView.invalidate(); 7487 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 7488 } 7489 } 7490 7491 float getGhostOffset() { 7492 return mGhostOffset; 7493 } 7494 7495 boolean shouldDrawLeftFade() { 7496 return mScroll <= mFadeStop; 7497 } 7498 7499 boolean shouldDrawGhost() { 7500 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 7501 } 7502 7503 boolean isRunning() { 7504 return mStatus == MARQUEE_RUNNING; 7505 } 7506 7507 boolean isStopped() { 7508 return mStatus == MARQUEE_STOPPED; 7509 } 7510 } 7511 7512 /** 7513 * This method is called when the text is changed, in case any subclasses 7514 * would like to know. 7515 * 7516 * Within <code>text</code>, the <code>lengthAfter</code> characters 7517 * beginning at <code>start</code> have just replaced old text that had 7518 * length <code>lengthBefore</code>. It is an error to attempt to make 7519 * changes to <code>text</code> from this callback. 7520 * 7521 * @param text The text the TextView is displaying 7522 * @param start The offset of the start of the range of the text that was 7523 * modified 7524 * @param lengthBefore The length of the former text that has been replaced 7525 * @param lengthAfter The length of the replacement modified text 7526 */ 7527 protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { 7528 // intentionally empty, template pattern method can be overridden by subclasses 7529 } 7530 7531 /** 7532 * This method is called when the selection has changed, in case any 7533 * subclasses would like to know. 7534 * 7535 * @param selStart The new selection start location. 7536 * @param selEnd The new selection end location. 7537 */ 7538 protected void onSelectionChanged(int selStart, int selEnd) { 7539 sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED); 7540 } 7541 7542 /** 7543 * Adds a TextWatcher to the list of those whose methods are called 7544 * whenever this TextView's text changes. 7545 * <p> 7546 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 7547 * not called after {@link #setText} calls. Now, doing {@link #setText} 7548 * if there are any text changed listeners forces the buffer type to 7549 * Editable if it would not otherwise be and does call this method. 7550 */ 7551 public void addTextChangedListener(TextWatcher watcher) { 7552 if (mListeners == null) { 7553 mListeners = new ArrayList<TextWatcher>(); 7554 } 7555 7556 mListeners.add(watcher); 7557 } 7558 7559 /** 7560 * Removes the specified TextWatcher from the list of those whose 7561 * methods are called 7562 * whenever this TextView's text changes. 7563 */ 7564 public void removeTextChangedListener(TextWatcher watcher) { 7565 if (mListeners != null) { 7566 int i = mListeners.indexOf(watcher); 7567 7568 if (i >= 0) { 7569 mListeners.remove(i); 7570 } 7571 } 7572 } 7573 7574 private void sendBeforeTextChanged(CharSequence text, int start, int before, int after) { 7575 if (mListeners != null) { 7576 final ArrayList<TextWatcher> list = mListeners; 7577 final int count = list.size(); 7578 for (int i = 0; i < count; i++) { 7579 list.get(i).beforeTextChanged(text, start, before, after); 7580 } 7581 } 7582 7583 // The spans that are inside or intersect the modified region no longer make sense 7584 removeIntersectingSpans(start, start + before, SpellCheckSpan.class); 7585 removeIntersectingSpans(start, start + before, SuggestionSpan.class); 7586 } 7587 7588 // Removes all spans that are inside or actually overlap the start..end range 7589 private <T> void removeIntersectingSpans(int start, int end, Class<T> type) { 7590 if (!(mText instanceof Editable)) return; 7591 Editable text = (Editable) mText; 7592 7593 T[] spans = text.getSpans(start, end, type); 7594 final int length = spans.length; 7595 for (int i = 0; i < length; i++) { 7596 final int s = text.getSpanStart(spans[i]); 7597 final int e = text.getSpanEnd(spans[i]); 7598 // Spans that are adjacent to the edited region will be handled in 7599 // updateSpellCheckSpans. Result depends on what will be added (space or text) 7600 if (e == start || s == end) break; 7601 text.removeSpan(spans[i]); 7602 } 7603 } 7604 7605 /** 7606 * Not private so it can be called from an inner class without going 7607 * through a thunk. 7608 */ 7609 void sendOnTextChanged(CharSequence text, int start, int before, int after) { 7610 if (mListeners != null) { 7611 final ArrayList<TextWatcher> list = mListeners; 7612 final int count = list.size(); 7613 for (int i = 0; i < count; i++) { 7614 list.get(i).onTextChanged(text, start, before, after); 7615 } 7616 } 7617 } 7618 7619 /** 7620 * Not private so it can be called from an inner class without going 7621 * through a thunk. 7622 */ 7623 void sendAfterTextChanged(Editable text) { 7624 if (mListeners != null) { 7625 final ArrayList<TextWatcher> list = mListeners; 7626 final int count = list.size(); 7627 for (int i = 0; i < count; i++) { 7628 list.get(i).afterTextChanged(text); 7629 } 7630 } 7631 } 7632 7633 /** 7634 * Not private so it can be called from an inner class without going 7635 * through a thunk. 7636 */ 7637 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 7638 final InputMethodState ims = mInputMethodState; 7639 if (ims == null || ims.mBatchEditNesting == 0) { 7640 updateAfterEdit(); 7641 } 7642 if (ims != null) { 7643 ims.mContentChanged = true; 7644 if (ims.mChangedStart < 0) { 7645 ims.mChangedStart = start; 7646 ims.mChangedEnd = start+before; 7647 } else { 7648 ims.mChangedStart = Math.min(ims.mChangedStart, start); 7649 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 7650 } 7651 ims.mChangedDelta += after-before; 7652 } 7653 7654 sendOnTextChanged(buffer, start, before, after); 7655 onTextChanged(buffer, start, before, after); 7656 7657 updateSpellCheckSpans(start, start + after); 7658 7659 // Hide the controllers if the amount of content changed 7660 if (before != after) { 7661 // We do not hide the span controllers, as they can be added when a new text is 7662 // inserted into the text view 7663 hideCursorControllers(); 7664 } 7665 } 7666 7667 /** 7668 * Not private so it can be called from an inner class without going 7669 * through a thunk. 7670 */ 7671 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 7672 // XXX Make the start and end move together if this ends up 7673 // spending too much time invalidating. 7674 7675 boolean selChanged = false; 7676 int newSelStart=-1, newSelEnd=-1; 7677 7678 final InputMethodState ims = mInputMethodState; 7679 7680 if (what == Selection.SELECTION_END) { 7681 mHighlightPathBogus = true; 7682 selChanged = true; 7683 newSelEnd = newStart; 7684 7685 if (!isFocused()) { 7686 mSelectionMoved = true; 7687 } 7688 7689 if (oldStart >= 0 || newStart >= 0) { 7690 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 7691 registerForPreDraw(); 7692 makeBlink(); 7693 } 7694 } 7695 7696 if (what == Selection.SELECTION_START) { 7697 mHighlightPathBogus = true; 7698 selChanged = true; 7699 newSelStart = newStart; 7700 7701 if (!isFocused()) { 7702 mSelectionMoved = true; 7703 } 7704 7705 if (oldStart >= 0 || newStart >= 0) { 7706 int end = Selection.getSelectionEnd(buf); 7707 invalidateCursor(end, oldStart, newStart); 7708 } 7709 } 7710 7711 if (selChanged) { 7712 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 7713 if (newSelStart < 0) { 7714 newSelStart = Selection.getSelectionStart(buf); 7715 } 7716 if (newSelEnd < 0) { 7717 newSelEnd = Selection.getSelectionEnd(buf); 7718 } 7719 onSelectionChanged(newSelStart, newSelEnd); 7720 } 7721 } 7722 7723 if (what instanceof UpdateAppearance || what instanceof ParagraphStyle 7724 || (what instanceof SuggestionSpan && (((SuggestionSpan)what).getFlags() 7725 & SuggestionSpan.FLAG_AUTO_CORRECTION) != 0)) { 7726 if (ims == null || ims.mBatchEditNesting == 0) { 7727 invalidate(); 7728 mHighlightPathBogus = true; 7729 checkForResize(); 7730 } else { 7731 ims.mContentChanged = true; 7732 } 7733 } 7734 7735 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 7736 mHighlightPathBogus = true; 7737 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 7738 ims.mSelectionModeChanged = true; 7739 } 7740 7741 if (Selection.getSelectionStart(buf) >= 0) { 7742 if (ims == null || ims.mBatchEditNesting == 0) { 7743 invalidateCursor(); 7744 } else { 7745 ims.mCursorChanged = true; 7746 } 7747 } 7748 } 7749 7750 if (what instanceof ParcelableSpan) { 7751 // If this is a span that can be sent to a remote process, 7752 // the current extract editor would be interested in it. 7753 if (ims != null && ims.mExtracting != null) { 7754 if (ims.mBatchEditNesting != 0) { 7755 if (oldStart >= 0) { 7756 if (ims.mChangedStart > oldStart) { 7757 ims.mChangedStart = oldStart; 7758 } 7759 if (ims.mChangedStart > oldEnd) { 7760 ims.mChangedStart = oldEnd; 7761 } 7762 } 7763 if (newStart >= 0) { 7764 if (ims.mChangedStart > newStart) { 7765 ims.mChangedStart = newStart; 7766 } 7767 if (ims.mChangedStart > newEnd) { 7768 ims.mChangedStart = newEnd; 7769 } 7770 } 7771 } else { 7772 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 7773 + oldStart + "-" + oldEnd + "," 7774 + newStart + "-" + newEnd + what); 7775 ims.mContentChanged = true; 7776 } 7777 } 7778 } 7779 7780 if (newStart < 0 && what instanceof SpellCheckSpan) { 7781 getSpellChecker().removeSpellCheckSpan((SpellCheckSpan) what); 7782 } 7783 } 7784 7785 /** 7786 * Create new SpellCheckSpans on the modified region. 7787 */ 7788 private void updateSpellCheckSpans(int start, int end) { 7789 if (isTextEditable() && isSuggestionsEnabled()) { 7790 getSpellChecker().spellCheck(start, end); 7791 } 7792 } 7793 7794 /** 7795 * Controls the {@link EasyEditSpan} monitoring when it is added, and when the related 7796 * pop-up should be displayed. 7797 */ 7798 private class EasyEditSpanController { 7799 7800 private static final int DISPLAY_TIMEOUT_MS = 3000; // 3 secs 7801 7802 private EasyEditPopupWindow mPopupWindow; 7803 7804 private EasyEditSpan mEasyEditSpan; 7805 7806 private Runnable mHidePopup; 7807 7808 private void hide() { 7809 if (mPopupWindow != null) { 7810 mPopupWindow.hide(); 7811 TextView.this.removeCallbacks(mHidePopup); 7812 } 7813 removeSpans(mText); 7814 mEasyEditSpan = null; 7815 } 7816 7817 /** 7818 * Monitors the changes in the text. 7819 * 7820 * <p>{@link ChangeWatcher#onSpanAdded(Spannable, Object, int, int)} cannot be used, 7821 * as the notifications are not sent when a spannable (with spans) is inserted. 7822 */ 7823 public void onTextChange(CharSequence buffer) { 7824 adjustSpans(mText); 7825 7826 if (getWindowVisibility() != View.VISIBLE) { 7827 // The window is not visible yet, ignore the text change. 7828 return; 7829 } 7830 7831 if (mLayout == null) { 7832 // The view has not been layout yet, ignore the text change 7833 return; 7834 } 7835 7836 InputMethodManager imm = InputMethodManager.peekInstance(); 7837 if (!(TextView.this instanceof ExtractEditText) 7838 && imm != null && imm.isFullscreenMode()) { 7839 // The input is in extract mode. We do not have to handle the easy edit in the 7840 // original TextView, as the ExtractEditText will do 7841 return; 7842 } 7843 7844 // Remove the current easy edit span, as the text changed, and remove the pop-up 7845 // (if any) 7846 if (mEasyEditSpan != null) { 7847 if (mText instanceof Spannable) { 7848 ((Spannable) mText).removeSpan(mEasyEditSpan); 7849 } 7850 mEasyEditSpan = null; 7851 } 7852 if (mPopupWindow != null && mPopupWindow.isShowing()) { 7853 mPopupWindow.hide(); 7854 } 7855 7856 // Display the new easy edit span (if any). 7857 if (buffer instanceof Spanned) { 7858 mEasyEditSpan = getSpan((Spanned) buffer); 7859 if (mEasyEditSpan != null) { 7860 if (mPopupWindow == null) { 7861 mPopupWindow = new EasyEditPopupWindow(); 7862 mHidePopup = new Runnable() { 7863 @Override 7864 public void run() { 7865 hide(); 7866 } 7867 }; 7868 } 7869 mPopupWindow.show(mEasyEditSpan); 7870 TextView.this.removeCallbacks(mHidePopup); 7871 TextView.this.postDelayed(mHidePopup, DISPLAY_TIMEOUT_MS); 7872 } 7873 } 7874 } 7875 7876 /** 7877 * Adjusts the spans by removing all of them except the last one. 7878 */ 7879 private void adjustSpans(CharSequence buffer) { 7880 // This method enforces that only one easy edit span is attached to the text. 7881 // A better way to enforce this would be to listen for onSpanAdded, but this method 7882 // cannot be used in this scenario as no notification is triggered when a text with 7883 // spans is inserted into a text. 7884 if (buffer instanceof Spannable) { 7885 Spannable spannable = (Spannable) buffer; 7886 EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(), 7887 EasyEditSpan.class); 7888 for (int i = 0; i < spans.length - 1; i++) { 7889 spannable.removeSpan(spans[i]); 7890 } 7891 } 7892 } 7893 7894 /** 7895 * Removes all the {@link EasyEditSpan} currently attached. 7896 */ 7897 private void removeSpans(CharSequence buffer) { 7898 if (buffer instanceof Spannable) { 7899 Spannable spannable = (Spannable) buffer; 7900 EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(), 7901 EasyEditSpan.class); 7902 for (int i = 0; i < spans.length; i++) { 7903 spannable.removeSpan(spans[i]); 7904 } 7905 } 7906 } 7907 7908 private EasyEditSpan getSpan(Spanned spanned) { 7909 EasyEditSpan[] easyEditSpans = spanned.getSpans(0, spanned.length(), 7910 EasyEditSpan.class); 7911 if (easyEditSpans.length == 0) { 7912 return null; 7913 } else { 7914 return easyEditSpans[0]; 7915 } 7916 } 7917 } 7918 7919 /** 7920 * Displays the actions associated to an {@link EasyEditSpan}. The pop-up is controlled 7921 * by {@link EasyEditSpanController}. 7922 */ 7923 private class EasyEditPopupWindow extends PinnedPopupWindow 7924 implements OnClickListener { 7925 private static final int POPUP_TEXT_LAYOUT = 7926 com.android.internal.R.layout.text_edit_action_popup_text; 7927 private TextView mDeleteTextView; 7928 private EasyEditSpan mEasyEditSpan; 7929 7930 @Override 7931 protected void createPopupWindow() { 7932 mPopupWindow = new PopupWindow(TextView.this.mContext, null, 7933 com.android.internal.R.attr.textSelectHandleWindowStyle); 7934 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 7935 mPopupWindow.setClippingEnabled(true); 7936 } 7937 7938 @Override 7939 protected void initContentView() { 7940 LinearLayout linearLayout = new LinearLayout(TextView.this.getContext()); 7941 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 7942 mContentView = linearLayout; 7943 mContentView.setBackgroundResource( 7944 com.android.internal.R.drawable.text_edit_side_paste_window); 7945 7946 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 7947 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 7948 7949 LayoutParams wrapContent = new LayoutParams( 7950 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 7951 7952 mDeleteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 7953 mDeleteTextView.setLayoutParams(wrapContent); 7954 mDeleteTextView.setText(com.android.internal.R.string.delete); 7955 mDeleteTextView.setOnClickListener(this); 7956 mContentView.addView(mDeleteTextView); 7957 } 7958 7959 public void show(EasyEditSpan easyEditSpan) { 7960 mEasyEditSpan = easyEditSpan; 7961 super.show(); 7962 } 7963 7964 @Override 7965 public void onClick(View view) { 7966 if (view == mDeleteTextView) { 7967 deleteText(); 7968 } 7969 } 7970 7971 private void deleteText() { 7972 Editable editable = (Editable) mText; 7973 int start = editable.getSpanStart(mEasyEditSpan); 7974 int end = editable.getSpanEnd(mEasyEditSpan); 7975 if (start >= 0 && end >= 0) { 7976 editable.delete(start, end); 7977 } 7978 } 7979 7980 @Override 7981 protected int getTextOffset() { 7982 // Place the pop-up at the end of the span 7983 Editable editable = (Editable) mText; 7984 return editable.getSpanEnd(mEasyEditSpan); 7985 } 7986 7987 @Override 7988 protected int getVerticalLocalPosition(int line) { 7989 return mLayout.getLineBottom(line); 7990 } 7991 7992 @Override 7993 protected int clipVertically(int positionY) { 7994 // As we display the pop-up below the span, no vertical clipping is required. 7995 return positionY; 7996 } 7997 } 7998 7999 private class ChangeWatcher implements TextWatcher, SpanWatcher { 8000 8001 private CharSequence mBeforeText; 8002 8003 private EasyEditSpanController mEasyEditSpanController; 8004 8005 private ChangeWatcher() { 8006 mEasyEditSpanController = new EasyEditSpanController(); 8007 } 8008 8009 public void beforeTextChanged(CharSequence buffer, int start, 8010 int before, int after) { 8011 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 8012 + " before=" + before + " after=" + after + ": " + buffer); 8013 8014 if (AccessibilityManager.getInstance(mContext).isEnabled() 8015 && !isPasswordInputType(mInputType) 8016 && !hasPasswordTransformationMethod()) { 8017 mBeforeText = buffer.toString(); 8018 } 8019 8020 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 8021 } 8022 8023 public void onTextChanged(CharSequence buffer, int start, 8024 int before, int after) { 8025 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 8026 + " before=" + before + " after=" + after + ": " + buffer); 8027 TextView.this.handleTextChanged(buffer, start, before, after); 8028 8029 mEasyEditSpanController.onTextChange(buffer); 8030 8031 if (AccessibilityManager.getInstance(mContext).isEnabled() && 8032 (isFocused() || isSelected() && isShown())) { 8033 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 8034 mBeforeText = null; 8035 } 8036 } 8037 8038 public void afterTextChanged(Editable buffer) { 8039 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 8040 TextView.this.sendAfterTextChanged(buffer); 8041 8042 if (MetaKeyKeyListener.getMetaState(buffer, MetaKeyKeyListener.META_SELECTING) != 0) { 8043 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 8044 } 8045 } 8046 8047 public void onSpanChanged(Spannable buf, 8048 Object what, int s, int e, int st, int en) { 8049 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 8050 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 8051 TextView.this.spanChange(buf, what, s, st, e, en); 8052 } 8053 8054 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 8055 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 8056 + " what=" + what + ": " + buf); 8057 TextView.this.spanChange(buf, what, -1, s, -1, e); 8058 } 8059 8060 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 8061 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 8062 + " what=" + what + ": " + buf); 8063 TextView.this.spanChange(buf, what, s, -1, e, -1); 8064 } 8065 8066 private void hideControllers() { 8067 mEasyEditSpanController.hide(); 8068 } 8069 } 8070 8071 /** 8072 * @hide 8073 */ 8074 @Override 8075 public void dispatchFinishTemporaryDetach() { 8076 mDispatchTemporaryDetach = true; 8077 super.dispatchFinishTemporaryDetach(); 8078 mDispatchTemporaryDetach = false; 8079 } 8080 8081 @Override 8082 public void onStartTemporaryDetach() { 8083 super.onStartTemporaryDetach(); 8084 // Only track when onStartTemporaryDetach() is called directly, 8085 // usually because this instance is an editable field in a list 8086 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 8087 8088 // Because of View recycling in ListView, there is no easy way to know when a TextView with 8089 // selection becomes visible again. Until a better solution is found, stop text selection 8090 // mode (if any) as soon as this TextView is recycled. 8091 hideControllers(); 8092 } 8093 8094 @Override 8095 public void onFinishTemporaryDetach() { 8096 super.onFinishTemporaryDetach(); 8097 // Only track when onStartTemporaryDetach() is called directly, 8098 // usually because this instance is an editable field in a list 8099 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 8100 } 8101 8102 @Override 8103 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 8104 if (mTemporaryDetach) { 8105 // If we are temporarily in the detach state, then do nothing. 8106 super.onFocusChanged(focused, direction, previouslyFocusedRect); 8107 return; 8108 } 8109 8110 mShowCursor = SystemClock.uptimeMillis(); 8111 8112 ensureEndedBatchEdit(); 8113 8114 if (focused) { 8115 int selStart = getSelectionStart(); 8116 int selEnd = getSelectionEnd(); 8117 8118 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 8119 // mode for these, unless there was a specific selection already started. 8120 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 8121 selEnd == mText.length(); 8122 mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted; 8123 8124 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 8125 // If a tap was used to give focus to that view, move cursor at tap position. 8126 // Has to be done before onTakeFocus, which can be overloaded. 8127 final int lastTapPosition = getLastTapPosition(); 8128 if (lastTapPosition >= 0) { 8129 Selection.setSelection((Spannable) mText, lastTapPosition); 8130 } 8131 8132 if (mMovement != null) { 8133 mMovement.onTakeFocus(this, (Spannable) mText, direction); 8134 } 8135 8136 // The DecorView does not have focus when the 'Done' ExtractEditText button is 8137 // pressed. Since it is the ViewAncestor's mView, it requests focus before 8138 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 8139 // This special case ensure that we keep current selection in that case. 8140 // It would be better to know why the DecorView does not have focus at that time. 8141 if (((this instanceof ExtractEditText) || mSelectionMoved) && 8142 selStart >= 0 && selEnd >= 0) { 8143 /* 8144 * Someone intentionally set the selection, so let them 8145 * do whatever it is that they wanted to do instead of 8146 * the default on-focus behavior. We reset the selection 8147 * here instead of just skipping the onTakeFocus() call 8148 * because some movement methods do something other than 8149 * just setting the selection in theirs and we still 8150 * need to go through that path. 8151 */ 8152 Selection.setSelection((Spannable) mText, selStart, selEnd); 8153 } 8154 8155 if (mSelectAllOnFocus) { 8156 selectAll(); 8157 } 8158 8159 mTouchFocusSelected = true; 8160 } 8161 8162 mFrozenWithFocus = false; 8163 mSelectionMoved = false; 8164 8165 if (mText instanceof Spannable) { 8166 Spannable sp = (Spannable) mText; 8167 MetaKeyKeyListener.resetMetaState(sp); 8168 } 8169 8170 makeBlink(); 8171 8172 if (mError != null) { 8173 showError(); 8174 } 8175 } else { 8176 if (mError != null) { 8177 hideError(); 8178 } 8179 // Don't leave us in the middle of a batch edit. 8180 onEndBatchEdit(); 8181 8182 if (this instanceof ExtractEditText) { 8183 // terminateTextSelectionMode removes selection, which we want to keep when 8184 // ExtractEditText goes out of focus. 8185 final int selStart = getSelectionStart(); 8186 final int selEnd = getSelectionEnd(); 8187 hideControllers(); 8188 Selection.setSelection((Spannable) mText, selStart, selEnd); 8189 } else { 8190 hideControllers(); 8191 downgradeEasyCorrectionSpans(); 8192 } 8193 8194 // No need to create the controller 8195 if (mSelectionModifierCursorController != null) { 8196 mSelectionModifierCursorController.resetTouchOffsets(); 8197 } 8198 } 8199 8200 startStopMarquee(focused); 8201 8202 if (mTransformation != null) { 8203 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 8204 } 8205 8206 super.onFocusChanged(focused, direction, previouslyFocusedRect); 8207 } 8208 8209 private int getLastTapPosition() { 8210 // No need to create the controller at that point, no last tap position saved 8211 if (mSelectionModifierCursorController != null) { 8212 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 8213 if (lastTapPosition >= 0) { 8214 // Safety check, should not be possible. 8215 if (lastTapPosition > mText.length()) { 8216 Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs " 8217 + mText.length() + ")"); 8218 lastTapPosition = mText.length(); 8219 } 8220 return lastTapPosition; 8221 } 8222 } 8223 8224 return -1; 8225 } 8226 8227 @Override 8228 public void onWindowFocusChanged(boolean hasWindowFocus) { 8229 super.onWindowFocusChanged(hasWindowFocus); 8230 8231 if (hasWindowFocus) { 8232 if (mBlink != null) { 8233 mBlink.uncancel(); 8234 makeBlink(); 8235 } 8236 } else { 8237 if (mBlink != null) { 8238 mBlink.cancel(); 8239 } 8240 // Don't leave us in the middle of a batch edit. 8241 onEndBatchEdit(); 8242 if (mInputContentType != null) { 8243 mInputContentType.enterDown = false; 8244 } 8245 8246 hideControllers(); 8247 if (mSuggestionsPopupWindow != null) { 8248 mSuggestionsPopupWindow.onParentLostFocus(); 8249 } 8250 } 8251 8252 startStopMarquee(hasWindowFocus); 8253 } 8254 8255 @Override 8256 protected void onVisibilityChanged(View changedView, int visibility) { 8257 super.onVisibilityChanged(changedView, visibility); 8258 if (visibility != VISIBLE) { 8259 hideControllers(); 8260 } 8261 } 8262 8263 /** 8264 * Use {@link BaseInputConnection#removeComposingSpans 8265 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 8266 * state from this text view. 8267 */ 8268 public void clearComposingText() { 8269 if (mText instanceof Spannable) { 8270 BaseInputConnection.removeComposingSpans((Spannable)mText); 8271 } 8272 } 8273 8274 @Override 8275 public void setSelected(boolean selected) { 8276 boolean wasSelected = isSelected(); 8277 8278 super.setSelected(selected); 8279 8280 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 8281 if (selected) { 8282 startMarquee(); 8283 } else { 8284 stopMarquee(); 8285 } 8286 } 8287 } 8288 8289 @Override 8290 public boolean onTouchEvent(MotionEvent event) { 8291 final int action = event.getActionMasked(); 8292 8293 if (hasSelectionController()) { 8294 getSelectionController().onTouchEvent(event); 8295 } 8296 8297 if (action == MotionEvent.ACTION_DOWN) { 8298 mLastDownPositionX = event.getX(); 8299 mLastDownPositionY = event.getY(); 8300 8301 // Reset this state; it will be re-set if super.onTouchEvent 8302 // causes focus to move to the view. 8303 mTouchFocusSelected = false; 8304 mIgnoreActionUpEvent = false; 8305 } 8306 8307 final boolean superResult = super.onTouchEvent(event); 8308 8309 /* 8310 * Don't handle the release after a long press, because it will 8311 * move the selection away from whatever the menu action was 8312 * trying to affect. 8313 */ 8314 if (mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 8315 mDiscardNextActionUp = false; 8316 return superResult; 8317 } 8318 8319 final boolean touchIsFinished = (action == MotionEvent.ACTION_UP) && 8320 !shouldIgnoreActionUpEvent() && isFocused(); 8321 8322 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 8323 && mText instanceof Spannable && mLayout != null) { 8324 boolean handled = false; 8325 8326 if (mMovement != null) { 8327 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 8328 } 8329 8330 if (touchIsFinished && mLinksClickable && mAutoLinkMask != 0 && mTextIsSelectable) { 8331 // The LinkMovementMethod which should handle taps on links has not been installed 8332 // on non editable text that support text selection. 8333 // We reproduce its behavior here to open links for these. 8334 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 8335 getSelectionEnd(), ClickableSpan.class); 8336 8337 if (links.length != 0) { 8338 links[0].onClick(this); 8339 handled = true; 8340 } 8341 } 8342 8343 if (touchIsFinished && (isTextEditable() || mTextIsSelectable)) { 8344 // Show the IME, except when selecting in read-only text. 8345 final InputMethodManager imm = InputMethodManager.peekInstance(); 8346 viewClicked(imm); 8347 if (!mTextIsSelectable && mSoftInputShownOnFocus) { 8348 handled |= imm != null && imm.showSoftInput(this, 0); 8349 } 8350 8351 boolean selectAllGotFocus = mSelectAllOnFocus && didTouchFocusSelect(); 8352 hideControllers(); 8353 if (!selectAllGotFocus && mText.length() > 0) { 8354 if (mSpellChecker != null) { 8355 // When the cursor moves, the word that was typed may need spell check 8356 mSpellChecker.onSelectionChanged(); 8357 } 8358 if (isCursorInsideEasyCorrectionSpan()) { 8359 showSuggestions(); 8360 } else if (hasInsertionController()) { 8361 getInsertionController().show(); 8362 } 8363 } 8364 8365 handled = true; 8366 } 8367 8368 if (handled) { 8369 return true; 8370 } 8371 } 8372 8373 return superResult; 8374 } 8375 8376 /** 8377 * @return <code>true</code> if the cursor/current selection overlaps a {@link SuggestionSpan}. 8378 */ 8379 private boolean isCursorInsideSuggestionSpan() { 8380 if (!(mText instanceof Spannable)) return false; 8381 8382 SuggestionSpan[] suggestionSpans = ((Spannable) mText).getSpans(getSelectionStart(), 8383 getSelectionEnd(), SuggestionSpan.class); 8384 return (suggestionSpans.length > 0); 8385 } 8386 8387 /** 8388 * @return <code>true</code> if the cursor is inside an {@link SuggestionSpan} with 8389 * {@link SuggestionSpan#FLAG_EASY_CORRECT} set. 8390 */ 8391 private boolean isCursorInsideEasyCorrectionSpan() { 8392 Spannable spannable = (Spannable) mText; 8393 SuggestionSpan[] suggestionSpans = spannable.getSpans(getSelectionStart(), 8394 getSelectionEnd(), SuggestionSpan.class); 8395 for (int i = 0; i < suggestionSpans.length; i++) { 8396 if ((suggestionSpans[i].getFlags() & SuggestionSpan.FLAG_EASY_CORRECT) != 0) { 8397 return true; 8398 } 8399 } 8400 return false; 8401 } 8402 8403 /** 8404 * Downgrades to simple suggestions all the easy correction spans that are not a spell check 8405 * span. 8406 */ 8407 private void downgradeEasyCorrectionSpans() { 8408 if (mText instanceof Spannable) { 8409 Spannable spannable = (Spannable) mText; 8410 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, 8411 spannable.length(), SuggestionSpan.class); 8412 for (int i = 0; i < suggestionSpans.length; i++) { 8413 int flags = suggestionSpans[i].getFlags(); 8414 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 8415 && (flags & SuggestionSpan.FLAG_MISSPELLED) == 0) { 8416 flags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 8417 suggestionSpans[i].setFlags(flags); 8418 } 8419 } 8420 } 8421 } 8422 8423 @Override 8424 public boolean onGenericMotionEvent(MotionEvent event) { 8425 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 8426 try { 8427 if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) { 8428 return true; 8429 } 8430 } catch (AbstractMethodError ex) { 8431 // onGenericMotionEvent was added to the MovementMethod interface in API 12. 8432 // Ignore its absence in case third party applications implemented the 8433 // interface directly. 8434 } 8435 } 8436 return super.onGenericMotionEvent(event); 8437 } 8438 8439 private void prepareCursorControllers() { 8440 boolean windowSupportsHandles = false; 8441 8442 ViewGroup.LayoutParams params = getRootView().getLayoutParams(); 8443 if (params instanceof WindowManager.LayoutParams) { 8444 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 8445 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 8446 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 8447 } 8448 8449 mInsertionControllerEnabled = windowSupportsHandles && isCursorVisible() && mLayout != null; 8450 mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() && 8451 mLayout != null; 8452 8453 if (!mInsertionControllerEnabled) { 8454 hideInsertionPointCursorController(); 8455 if (mInsertionPointCursorController != null) { 8456 mInsertionPointCursorController.onDetached(); 8457 mInsertionPointCursorController = null; 8458 } 8459 } 8460 8461 if (!mSelectionControllerEnabled) { 8462 stopSelectionActionMode(); 8463 if (mSelectionModifierCursorController != null) { 8464 mSelectionModifierCursorController.onDetached(); 8465 mSelectionModifierCursorController = null; 8466 } 8467 } 8468 } 8469 8470 /** 8471 * @return True iff this TextView contains a text that can be edited, or if this is 8472 * a selectable TextView. 8473 */ 8474 private boolean isTextEditable() { 8475 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 8476 } 8477 8478 /** 8479 * Returns true, only while processing a touch gesture, if the initial 8480 * touch down event caused focus to move to the text view and as a result 8481 * its selection changed. Only valid while processing the touch gesture 8482 * of interest. 8483 */ 8484 public boolean didTouchFocusSelect() { 8485 return mTouchFocusSelected; 8486 } 8487 8488 @Override 8489 public void cancelLongPress() { 8490 super.cancelLongPress(); 8491 mIgnoreActionUpEvent = true; 8492 } 8493 8494 /** 8495 * This method is only valid during a touch event. 8496 * 8497 * @return true when the ACTION_UP event should be ignored, false otherwise. 8498 * 8499 * @hide 8500 */ 8501 public boolean shouldIgnoreActionUpEvent() { 8502 return mIgnoreActionUpEvent; 8503 } 8504 8505 @Override 8506 public boolean onTrackballEvent(MotionEvent event) { 8507 if (mMovement != null && mText instanceof Spannable && 8508 mLayout != null) { 8509 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 8510 return true; 8511 } 8512 } 8513 8514 return super.onTrackballEvent(event); 8515 } 8516 8517 public void setScroller(Scroller s) { 8518 mScroller = s; 8519 } 8520 8521 private static class Blink extends Handler implements Runnable { 8522 private final WeakReference<TextView> mView; 8523 private boolean mCancelled; 8524 8525 public Blink(TextView v) { 8526 mView = new WeakReference<TextView>(v); 8527 } 8528 8529 public void run() { 8530 if (mCancelled) { 8531 return; 8532 } 8533 8534 removeCallbacks(Blink.this); 8535 8536 TextView tv = mView.get(); 8537 8538 if (tv != null && tv.shouldBlink()) { 8539 if (tv.mLayout != null) { 8540 tv.invalidateCursorPath(); 8541 } 8542 8543 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 8544 } 8545 } 8546 8547 void cancel() { 8548 if (!mCancelled) { 8549 removeCallbacks(Blink.this); 8550 mCancelled = true; 8551 } 8552 } 8553 8554 void uncancel() { 8555 mCancelled = false; 8556 } 8557 } 8558 8559 /** 8560 * @return True when the TextView isFocused and has a valid zero-length selection (cursor). 8561 */ 8562 private boolean shouldBlink() { 8563 if (!isFocused()) return false; 8564 8565 final int start = getSelectionStart(); 8566 if (start < 0) return false; 8567 8568 final int end = getSelectionEnd(); 8569 if (end < 0) return false; 8570 8571 return start == end; 8572 } 8573 8574 private void makeBlink() { 8575 if (isCursorVisible()) { 8576 if (shouldBlink()) { 8577 mShowCursor = SystemClock.uptimeMillis(); 8578 if (mBlink == null) mBlink = new Blink(this); 8579 mBlink.removeCallbacks(mBlink); 8580 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 8581 } 8582 } else { 8583 if (mBlink != null) mBlink.removeCallbacks(mBlink); 8584 } 8585 } 8586 8587 @Override 8588 protected float getLeftFadingEdgeStrength() { 8589 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 8590 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 8591 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 8592 if (mMarquee != null && !mMarquee.isStopped()) { 8593 final Marquee marquee = mMarquee; 8594 if (marquee.shouldDrawLeftFade()) { 8595 return marquee.mScroll / getHorizontalFadingEdgeLength(); 8596 } else { 8597 return 0.0f; 8598 } 8599 } else if (getLineCount() == 1) { 8600 final int layoutDirection = getResolvedLayoutDirection(); 8601 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 8602 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 8603 case Gravity.LEFT: 8604 return 0.0f; 8605 case Gravity.RIGHT: 8606 return (mLayout.getLineRight(0) - (mRight - mLeft) - 8607 getCompoundPaddingLeft() - getCompoundPaddingRight() - 8608 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 8609 case Gravity.CENTER_HORIZONTAL: 8610 return 0.0f; 8611 } 8612 } 8613 } 8614 return super.getLeftFadingEdgeStrength(); 8615 } 8616 8617 @Override 8618 protected float getRightFadingEdgeStrength() { 8619 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 8620 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 8621 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 8622 if (mMarquee != null && !mMarquee.isStopped()) { 8623 final Marquee marquee = mMarquee; 8624 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 8625 } else if (getLineCount() == 1) { 8626 final int layoutDirection = getResolvedLayoutDirection(); 8627 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 8628 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 8629 case Gravity.LEFT: 8630 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 8631 getCompoundPaddingRight(); 8632 final float lineWidth = mLayout.getLineWidth(0); 8633 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 8634 case Gravity.RIGHT: 8635 return 0.0f; 8636 case Gravity.CENTER_HORIZONTAL: 8637 case Gravity.FILL_HORIZONTAL: 8638 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 8639 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 8640 getHorizontalFadingEdgeLength(); 8641 } 8642 } 8643 } 8644 return super.getRightFadingEdgeStrength(); 8645 } 8646 8647 @Override 8648 protected int computeHorizontalScrollRange() { 8649 if (mLayout != null) { 8650 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 8651 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 8652 } 8653 8654 return super.computeHorizontalScrollRange(); 8655 } 8656 8657 @Override 8658 protected int computeVerticalScrollRange() { 8659 if (mLayout != null) 8660 return mLayout.getHeight(); 8661 8662 return super.computeVerticalScrollRange(); 8663 } 8664 8665 @Override 8666 protected int computeVerticalScrollExtent() { 8667 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 8668 } 8669 8670 @Override 8671 public void findViewsWithText(ArrayList<View> outViews, CharSequence searched, int flags) { 8672 super.findViewsWithText(outViews, searched, flags); 8673 if (!outViews.contains(this) && (flags & FIND_VIEWS_WITH_TEXT) != 0 8674 && !TextUtils.isEmpty(searched) && !TextUtils.isEmpty(mText)) { 8675 String searchedLowerCase = searched.toString().toLowerCase(); 8676 String textLowerCase = mText.toString().toLowerCase(); 8677 if (textLowerCase.contains(searchedLowerCase)) { 8678 outViews.add(this); 8679 } 8680 } 8681 } 8682 8683 public enum BufferType { 8684 NORMAL, SPANNABLE, EDITABLE, 8685 } 8686 8687 /** 8688 * Returns the TextView_textColor attribute from the 8689 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 8690 * from the TextView_textAppearance attribute, if TextView_textColor 8691 * was not set directly. 8692 */ 8693 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 8694 ColorStateList colors; 8695 colors = attrs.getColorStateList(com.android.internal.R.styleable. 8696 TextView_textColor); 8697 8698 if (colors == null) { 8699 int ap = attrs.getResourceId(com.android.internal.R.styleable. 8700 TextView_textAppearance, -1); 8701 if (ap != -1) { 8702 TypedArray appearance; 8703 appearance = context.obtainStyledAttributes(ap, 8704 com.android.internal.R.styleable.TextAppearance); 8705 colors = appearance.getColorStateList(com.android.internal.R.styleable. 8706 TextAppearance_textColor); 8707 appearance.recycle(); 8708 } 8709 } 8710 8711 return colors; 8712 } 8713 8714 /** 8715 * Returns the default color from the TextView_textColor attribute 8716 * from the AttributeSet, if set, or the default color from the 8717 * TextAppearance_textColor from the TextView_textAppearance attribute, 8718 * if TextView_textColor was not set directly. 8719 */ 8720 public static int getTextColor(Context context, 8721 TypedArray attrs, 8722 int def) { 8723 ColorStateList colors = getTextColors(context, attrs); 8724 8725 if (colors == null) { 8726 return def; 8727 } else { 8728 return colors.getDefaultColor(); 8729 } 8730 } 8731 8732 @Override 8733 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 8734 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 8735 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 8736 switch (keyCode) { 8737 case KeyEvent.KEYCODE_A: 8738 if (canSelectText()) { 8739 return onTextContextMenuItem(ID_SELECT_ALL); 8740 } 8741 break; 8742 case KeyEvent.KEYCODE_X: 8743 if (canCut()) { 8744 return onTextContextMenuItem(ID_CUT); 8745 } 8746 break; 8747 case KeyEvent.KEYCODE_C: 8748 if (canCopy()) { 8749 return onTextContextMenuItem(ID_COPY); 8750 } 8751 break; 8752 case KeyEvent.KEYCODE_V: 8753 if (canPaste()) { 8754 return onTextContextMenuItem(ID_PASTE); 8755 } 8756 break; 8757 } 8758 } 8759 return super.onKeyShortcut(keyCode, event); 8760 } 8761 8762 /** 8763 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 8764 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 8765 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 8766 */ 8767 private boolean canSelectText() { 8768 return hasSelectionController() && mText.length() != 0; 8769 } 8770 8771 /** 8772 * Test based on the <i>intrinsic</i> charateristics of the TextView. 8773 * The text must be spannable and the movement method must allow for arbitary selection. 8774 * 8775 * See also {@link #canSelectText()}. 8776 */ 8777 private boolean textCanBeSelected() { 8778 // prepareCursorController() relies on this method. 8779 // If you change this condition, make sure prepareCursorController is called anywhere 8780 // the value of this condition might be changed. 8781 if (mMovement == null || !mMovement.canSelectArbitrarily()) return false; 8782 return isTextEditable() || (mTextIsSelectable && mText instanceof Spannable && isEnabled()); 8783 } 8784 8785 private boolean canCut() { 8786 if (hasPasswordTransformationMethod()) { 8787 return false; 8788 } 8789 8790 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mInput != null) { 8791 return true; 8792 } 8793 8794 return false; 8795 } 8796 8797 private boolean canCopy() { 8798 if (hasPasswordTransformationMethod()) { 8799 return false; 8800 } 8801 8802 if (mText.length() > 0 && hasSelection()) { 8803 return true; 8804 } 8805 8806 return false; 8807 } 8808 8809 private boolean canPaste() { 8810 return (mText instanceof Editable && 8811 mInput != null && 8812 getSelectionStart() >= 0 && 8813 getSelectionEnd() >= 0 && 8814 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 8815 hasPrimaryClip()); 8816 } 8817 8818 private static long packRangeInLong(int start, int end) { 8819 return (((long) start) << 32) | end; 8820 } 8821 8822 private static int extractRangeStartFromLong(long range) { 8823 return (int) (range >>> 32); 8824 } 8825 8826 private static int extractRangeEndFromLong(long range) { 8827 return (int) (range & 0x00000000FFFFFFFFL); 8828 } 8829 8830 private boolean selectAll() { 8831 final int length = mText.length(); 8832 Selection.setSelection((Spannable) mText, 0, length); 8833 return length > 0; 8834 } 8835 8836 /** 8837 * Adjusts selection to the word under last touch offset. 8838 * Return true if the operation was successfully performed. 8839 */ 8840 private boolean selectCurrentWord() { 8841 if (!canSelectText()) { 8842 return false; 8843 } 8844 8845 if (hasPasswordTransformationMethod()) { 8846 // Always select all on a password field. 8847 // Cut/copy menu entries are not available for passwords, but being able to select all 8848 // is however useful to delete or paste to replace the entire content. 8849 return selectAll(); 8850 } 8851 8852 int klass = mInputType & InputType.TYPE_MASK_CLASS; 8853 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 8854 8855 // Specific text field types: select the entire text for these 8856 if (klass == InputType.TYPE_CLASS_NUMBER || 8857 klass == InputType.TYPE_CLASS_PHONE || 8858 klass == InputType.TYPE_CLASS_DATETIME || 8859 variation == InputType.TYPE_TEXT_VARIATION_URI || 8860 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 8861 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 8862 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 8863 return selectAll(); 8864 } 8865 8866 long lastTouchOffsets = getLastTouchOffsets(); 8867 final int minOffset = extractRangeStartFromLong(lastTouchOffsets); 8868 final int maxOffset = extractRangeEndFromLong(lastTouchOffsets); 8869 8870 // Safety check in case standard touch event handling has been bypassed 8871 if (minOffset < 0 || minOffset >= mText.length()) return false; 8872 if (maxOffset < 0 || maxOffset >= mText.length()) return false; 8873 8874 int selectionStart, selectionEnd; 8875 8876 // If a URLSpan (web address, email, phone...) is found at that position, select it. 8877 URLSpan[] urlSpans = ((Spanned) mText).getSpans(minOffset, maxOffset, URLSpan.class); 8878 if (urlSpans.length >= 1) { 8879 URLSpan urlSpan = urlSpans[0]; 8880 selectionStart = ((Spanned) mText).getSpanStart(urlSpan); 8881 selectionEnd = ((Spanned) mText).getSpanEnd(urlSpan); 8882 } else { 8883 final WordIterator wordIterator = getWordIterator(); 8884 wordIterator.setCharSequence(mText, minOffset, maxOffset); 8885 8886 selectionStart = wordIterator.getBeginning(minOffset); 8887 if (selectionStart == BreakIterator.DONE) return false; 8888 8889 selectionEnd = wordIterator.getEnd(maxOffset); 8890 if (selectionEnd == BreakIterator.DONE) return false; 8891 8892 if (selectionStart == selectionEnd) { 8893 // Possible when the word iterator does not properly handle the text's language 8894 long range = getCharRange(selectionStart); 8895 selectionStart = extractRangeStartFromLong(range); 8896 selectionEnd = extractRangeEndFromLong(range); 8897 } 8898 } 8899 8900 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8901 return selectionEnd > selectionStart; 8902 } 8903 8904 /** 8905 * This is a temporary method. Future versions may support multi-locale text. 8906 * 8907 * @return The current locale used in this TextView, based on the current IME's locale, 8908 * or the system default locale if this is not defined. 8909 * @hide 8910 */ 8911 public Locale getLocale() { 8912 Locale locale = Locale.getDefault(); 8913 final InputMethodManager imm = InputMethodManager.peekInstance(); 8914 if (imm != null) { 8915 final InputMethodSubtype currentInputMethodSubtype = imm.getCurrentInputMethodSubtype(); 8916 if (currentInputMethodSubtype != null) { 8917 String localeString = currentInputMethodSubtype.getLocale(); 8918 if (!TextUtils.isEmpty(localeString)) { 8919 locale = new Locale(localeString); 8920 } 8921 } 8922 } 8923 return locale; 8924 } 8925 8926 void onLocaleChanged() { 8927 // Will be re-created on demand in getWordIterator with the proper new locale 8928 mWordIterator = null; 8929 } 8930 8931 /** 8932 * @hide 8933 */ 8934 public WordIterator getWordIterator() { 8935 if (mWordIterator == null) { 8936 mWordIterator = new WordIterator(getLocale()); 8937 } 8938 return mWordIterator; 8939 } 8940 8941 private long getCharRange(int offset) { 8942 final int textLength = mText.length(); 8943 if (offset + 1 < textLength) { 8944 final char currentChar = mText.charAt(offset); 8945 final char nextChar = mText.charAt(offset + 1); 8946 if (Character.isSurrogatePair(currentChar, nextChar)) { 8947 return packRangeInLong(offset, offset + 2); 8948 } 8949 } 8950 if (offset < textLength) { 8951 return packRangeInLong(offset, offset + 1); 8952 } 8953 if (offset - 2 >= 0) { 8954 final char previousChar = mText.charAt(offset - 1); 8955 final char previousPreviousChar = mText.charAt(offset - 2); 8956 if (Character.isSurrogatePair(previousPreviousChar, previousChar)) { 8957 return packRangeInLong(offset - 2, offset); 8958 } 8959 } 8960 if (offset - 1 >= 0) { 8961 return packRangeInLong(offset - 1, offset); 8962 } 8963 return packRangeInLong(offset, offset); 8964 } 8965 8966 private SpellChecker getSpellChecker() { 8967 if (mSpellChecker == null) { 8968 mSpellChecker = new SpellChecker(this); 8969 } 8970 return mSpellChecker; 8971 } 8972 8973 private long getLastTouchOffsets() { 8974 int minOffset, maxOffset; 8975 8976 if (mContextMenuTriggeredByKey) { 8977 minOffset = getSelectionStart(); 8978 maxOffset = getSelectionEnd(); 8979 } else { 8980 SelectionModifierCursorController selectionController = getSelectionController(); 8981 minOffset = selectionController.getMinTouchOffset(); 8982 maxOffset = selectionController.getMaxTouchOffset(); 8983 } 8984 8985 return packRangeInLong(minOffset, maxOffset); 8986 } 8987 8988 @Override 8989 public void onPopulateAccessibilityEvent(AccessibilityEvent event) { 8990 super.onPopulateAccessibilityEvent(event); 8991 8992 final boolean isPassword = hasPasswordTransformationMethod(); 8993 if (!isPassword) { 8994 CharSequence text = getTextForAccessibility(); 8995 if (!TextUtils.isEmpty(text)) { 8996 event.getText().add(text); 8997 } 8998 } 8999 } 9000 9001 @Override 9002 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 9003 super.onInitializeAccessibilityEvent(event); 9004 9005 final boolean isPassword = hasPasswordTransformationMethod(); 9006 event.setPassword(isPassword); 9007 9008 if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED) { 9009 event.setFromIndex(Selection.getSelectionStart(mText)); 9010 event.setToIndex(Selection.getSelectionEnd(mText)); 9011 event.setItemCount(mText.length()); 9012 } 9013 } 9014 9015 @Override 9016 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 9017 super.onInitializeAccessibilityNodeInfo(info); 9018 9019 final boolean isPassword = hasPasswordTransformationMethod(); 9020 if (!isPassword) { 9021 info.setText(getTextForAccessibility()); 9022 } 9023 info.setPassword(isPassword); 9024 } 9025 9026 @Override 9027 public void sendAccessibilityEvent(int eventType) { 9028 // Do not send scroll events since first they are not interesting for 9029 // accessibility and second such events a generated too frequently. 9030 // For details see the implementation of bringTextIntoView(). 9031 if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 9032 return; 9033 } 9034 super.sendAccessibilityEvent(eventType); 9035 } 9036 9037 /** 9038 * Gets the text reported for accessibility purposes. It is the 9039 * text if not empty or the hint. 9040 * 9041 * @return The accessibility text. 9042 */ 9043 private CharSequence getTextForAccessibility() { 9044 CharSequence text = getText(); 9045 if (TextUtils.isEmpty(text)) { 9046 text = getHint(); 9047 } 9048 return text; 9049 } 9050 9051 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 9052 int fromIndex, int removedCount, int addedCount) { 9053 AccessibilityEvent event = 9054 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 9055 event.setFromIndex(fromIndex); 9056 event.setRemovedCount(removedCount); 9057 event.setAddedCount(addedCount); 9058 event.setBeforeText(beforeText); 9059 sendAccessibilityEventUnchecked(event); 9060 } 9061 9062 @Override 9063 protected void onCreateContextMenu(ContextMenu menu) { 9064 super.onCreateContextMenu(menu); 9065 boolean added = false; 9066 mContextMenuTriggeredByKey = mDPadCenterIsDown || mEnterKeyIsDown; 9067 // Problem with context menu on long press: the menu appears while the key in down and when 9068 // the key is released, the view does not receive the key_up event. 9069 // We need two layers of flags: mDPadCenterIsDown and mEnterKeyIsDown are set in key down/up 9070 // events. We cannot simply clear these flags in onTextContextMenuItem since 9071 // it may not be called (if the user/ discards the context menu with the back key). 9072 // We clear these flags here and mContextMenuTriggeredByKey saves that state so that it is 9073 // available in onTextContextMenuItem. 9074 mDPadCenterIsDown = mEnterKeyIsDown = false; 9075 9076 MenuHandler handler = new MenuHandler(); 9077 9078 if (mText instanceof Spanned && hasSelectionController()) { 9079 long lastTouchOffset = getLastTouchOffsets(); 9080 final int selStart = extractRangeStartFromLong(lastTouchOffset); 9081 final int selEnd = extractRangeEndFromLong(lastTouchOffset); 9082 9083 URLSpan[] urls = ((Spanned) mText).getSpans(selStart, selEnd, URLSpan.class); 9084 if (urls.length > 0) { 9085 menu.add(0, ID_COPY_URL, 0, com.android.internal.R.string.copyUrl). 9086 setOnMenuItemClickListener(handler); 9087 9088 added = true; 9089 } 9090 } 9091 9092 // The context menu is not empty, which will prevent the selection mode from starting. 9093 // Add a entry to start it in the context menu. 9094 // TODO Does not handle the case where a subclass does not call super.thisMethod or 9095 // populates the menu AFTER this call. 9096 if (menu.size() > 0) { 9097 menu.add(0, ID_SELECTION_MODE, 0, com.android.internal.R.string.selectTextMode). 9098 setOnMenuItemClickListener(handler); 9099 added = true; 9100 } 9101 9102 if (added) { 9103 menu.setHeaderTitle(com.android.internal.R.string.editTextMenuTitle); 9104 } 9105 } 9106 9107 /** 9108 * Returns whether this text view is a current input method target. The 9109 * default implementation just checks with {@link InputMethodManager}. 9110 */ 9111 public boolean isInputMethodTarget() { 9112 InputMethodManager imm = InputMethodManager.peekInstance(); 9113 return imm != null && imm.isActive(this); 9114 } 9115 9116 // Selection context mode 9117 private static final int ID_SELECT_ALL = android.R.id.selectAll; 9118 private static final int ID_CUT = android.R.id.cut; 9119 private static final int ID_COPY = android.R.id.copy; 9120 private static final int ID_PASTE = android.R.id.paste; 9121 // Context menu entries 9122 private static final int ID_COPY_URL = android.R.id.copyUrl; 9123 private static final int ID_SELECTION_MODE = android.R.id.selectTextMode; 9124 9125 private class MenuHandler implements MenuItem.OnMenuItemClickListener { 9126 public boolean onMenuItemClick(MenuItem item) { 9127 return onTextContextMenuItem(item.getItemId()); 9128 } 9129 } 9130 9131 /** 9132 * Called when a context menu option for the text view is selected. Currently 9133 * this will be {@link android.R.id#copyUrl}, {@link android.R.id#selectTextMode}, 9134 * {@link android.R.id#selectAll}, {@link android.R.id#paste}, {@link android.R.id#cut} 9135 * or {@link android.R.id#copy}. 9136 * 9137 * @return true if the context menu item action was performed. 9138 */ 9139 public boolean onTextContextMenuItem(int id) { 9140 int min = 0; 9141 int max = mText.length(); 9142 9143 if (isFocused()) { 9144 final int selStart = getSelectionStart(); 9145 final int selEnd = getSelectionEnd(); 9146 9147 min = Math.max(0, Math.min(selStart, selEnd)); 9148 max = Math.max(0, Math.max(selStart, selEnd)); 9149 } 9150 9151 switch (id) { 9152 case ID_COPY_URL: 9153 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, URLSpan.class); 9154 if (urls.length >= 1) { 9155 ClipData clip = null; 9156 for (int i=0; i<urls.length; i++) { 9157 Uri uri = Uri.parse(urls[0].getURL()); 9158 if (clip == null) { 9159 clip = ClipData.newRawUri(null, uri); 9160 } else { 9161 clip.addItem(new ClipData.Item(uri)); 9162 } 9163 } 9164 if (clip != null) { 9165 setPrimaryClip(clip); 9166 } 9167 } 9168 stopSelectionActionMode(); 9169 return true; 9170 9171 case ID_SELECTION_MODE: 9172 if (mSelectionActionMode != null) { 9173 // Selection mode is already started, simply change selected part. 9174 selectCurrentWord(); 9175 } else { 9176 startSelectionActionMode(); 9177 } 9178 return true; 9179 9180 case ID_SELECT_ALL: 9181 // This does not enter text selection mode. Text is highlighted, so that it can be 9182 // bulk edited, like selectAllOnFocus does. Returns true even if text is empty. 9183 selectAll(); 9184 return true; 9185 9186 case ID_PASTE: 9187 paste(min, max); 9188 return true; 9189 9190 case ID_CUT: 9191 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 9192 ((Editable) mText).delete(min, max); 9193 stopSelectionActionMode(); 9194 return true; 9195 9196 case ID_COPY: 9197 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 9198 stopSelectionActionMode(); 9199 return true; 9200 } 9201 return false; 9202 } 9203 9204 private CharSequence getTransformedText(int start, int end) { 9205 return removeSuggestionSpans(mTransformed.subSequence(start, end)); 9206 } 9207 9208 /** 9209 * Prepare text so that there are not zero or two spaces at beginning and end of region defined 9210 * by [min, max] when replacing this region by paste. 9211 * Note that if there were two spaces (or more) at that position before, they are kept. We just 9212 * make sure we do not add an extra one from the paste content. 9213 */ 9214 private long prepareSpacesAroundPaste(int min, int max, CharSequence paste) { 9215 if (paste.length() > 0) { 9216 if (min > 0) { 9217 final char charBefore = mTransformed.charAt(min - 1); 9218 final char charAfter = paste.charAt(0); 9219 9220 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 9221 // Two spaces at beginning of paste: remove one 9222 final int originalLength = mText.length(); 9223 ((Editable) mText).delete(min - 1, min); 9224 // Due to filters, there is no guarantee that exactly one character was 9225 // removed: count instead. 9226 final int delta = mText.length() - originalLength; 9227 min += delta; 9228 max += delta; 9229 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 9230 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 9231 // No space at beginning of paste: add one 9232 final int originalLength = mText.length(); 9233 ((Editable) mText).replace(min, min, " "); 9234 // Taking possible filters into account as above. 9235 final int delta = mText.length() - originalLength; 9236 min += delta; 9237 max += delta; 9238 } 9239 } 9240 9241 if (max < mText.length()) { 9242 final char charBefore = paste.charAt(paste.length() - 1); 9243 final char charAfter = mTransformed.charAt(max); 9244 9245 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 9246 // Two spaces at end of paste: remove one 9247 ((Editable) mText).delete(max, max + 1); 9248 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 9249 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 9250 // No space at end of paste: add one 9251 ((Editable) mText).replace(max, max, " "); 9252 } 9253 } 9254 } 9255 9256 return packRangeInLong(min, max); 9257 } 9258 9259 private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { 9260 TextView shadowView = (TextView) inflate(mContext, 9261 com.android.internal.R.layout.text_drag_thumbnail, null); 9262 9263 if (shadowView == null) { 9264 throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); 9265 } 9266 9267 if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { 9268 text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); 9269 } 9270 shadowView.setText(text); 9271 shadowView.setTextColor(getTextColors()); 9272 9273 shadowView.setTextAppearance(mContext, R.styleable.Theme_textAppearanceLarge); 9274 shadowView.setGravity(Gravity.CENTER); 9275 9276 shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 9277 ViewGroup.LayoutParams.WRAP_CONTENT)); 9278 9279 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 9280 shadowView.measure(size, size); 9281 9282 shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); 9283 shadowView.invalidate(); 9284 return new DragShadowBuilder(shadowView); 9285 } 9286 9287 private static class DragLocalState { 9288 public TextView sourceTextView; 9289 public int start, end; 9290 9291 public DragLocalState(TextView sourceTextView, int start, int end) { 9292 this.sourceTextView = sourceTextView; 9293 this.start = start; 9294 this.end = end; 9295 } 9296 } 9297 9298 @Override 9299 public boolean performLongClick() { 9300 boolean handled = false; 9301 boolean vibrate = true; 9302 9303 if (super.performLongClick()) { 9304 mDiscardNextActionUp = true; 9305 handled = true; 9306 } 9307 9308 // Long press in empty space moves cursor and shows the Paste affordance if available. 9309 if (!handled && !isPositionOnText(mLastDownPositionX, mLastDownPositionY) && 9310 mInsertionControllerEnabled) { 9311 final int offset = getOffsetForPosition(mLastDownPositionX, mLastDownPositionY); 9312 stopSelectionActionMode(); 9313 Selection.setSelection((Spannable) mText, offset); 9314 getInsertionController().showWithActionPopup(); 9315 handled = true; 9316 vibrate = false; 9317 } 9318 9319 if (!handled && mSelectionActionMode != null) { 9320 if (touchPositionIsInSelection()) { 9321 // Start a drag 9322 final int start = getSelectionStart(); 9323 final int end = getSelectionEnd(); 9324 CharSequence selectedText = getTransformedText(start, end); 9325 ClipData data = ClipData.newPlainText(null, selectedText); 9326 DragLocalState localState = new DragLocalState(this, start, end); 9327 startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); 9328 stopSelectionActionMode(); 9329 } else { 9330 getSelectionController().hide(); 9331 selectCurrentWord(); 9332 getSelectionController().show(); 9333 } 9334 handled = true; 9335 } 9336 9337 // Start a new selection 9338 if (!handled) { 9339 vibrate = handled = startSelectionActionMode(); 9340 } 9341 9342 if (vibrate) { 9343 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 9344 } 9345 9346 if (handled) { 9347 mDiscardNextActionUp = true; 9348 } 9349 9350 return handled; 9351 } 9352 9353 private boolean touchPositionIsInSelection() { 9354 int selectionStart = getSelectionStart(); 9355 int selectionEnd = getSelectionEnd(); 9356 9357 if (selectionStart == selectionEnd) { 9358 return false; 9359 } 9360 9361 if (selectionStart > selectionEnd) { 9362 int tmp = selectionStart; 9363 selectionStart = selectionEnd; 9364 selectionEnd = tmp; 9365 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 9366 } 9367 9368 SelectionModifierCursorController selectionController = getSelectionController(); 9369 int minOffset = selectionController.getMinTouchOffset(); 9370 int maxOffset = selectionController.getMaxTouchOffset(); 9371 9372 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 9373 } 9374 9375 private PositionListener getPositionListener() { 9376 if (mPositionListener == null) { 9377 mPositionListener = new PositionListener(); 9378 } 9379 return mPositionListener; 9380 } 9381 9382 private interface TextViewPositionListener { 9383 public void updatePosition(int parentPositionX, int parentPositionY, 9384 boolean parentPositionChanged, boolean parentScrolled); 9385 } 9386 9387 private class PositionListener implements ViewTreeObserver.OnPreDrawListener { 9388 // 3 handles 9389 // 3 ActionPopup [replace, suggestion, easyedit] (suggestionsPopup first hides the others) 9390 private final int MAXIMUM_NUMBER_OF_LISTENERS = 6; 9391 private TextViewPositionListener[] mPositionListeners = 9392 new TextViewPositionListener[MAXIMUM_NUMBER_OF_LISTENERS]; 9393 private boolean mCanMove[] = new boolean[MAXIMUM_NUMBER_OF_LISTENERS]; 9394 private boolean mPositionHasChanged = true; 9395 // Absolute position of the TextView with respect to its parent window 9396 private int mPositionX, mPositionY; 9397 private int mNumberOfListeners; 9398 private boolean mScrollHasChanged; 9399 9400 public void addSubscriber(TextViewPositionListener positionListener, boolean canMove) { 9401 if (mNumberOfListeners == 0) { 9402 updatePosition(); 9403 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9404 vto.addOnPreDrawListener(this); 9405 } 9406 9407 int emptySlotIndex = -1; 9408 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9409 TextViewPositionListener listener = mPositionListeners[i]; 9410 if (listener == positionListener) { 9411 return; 9412 } else if (emptySlotIndex < 0 && listener == null) { 9413 emptySlotIndex = i; 9414 } 9415 } 9416 9417 mPositionListeners[emptySlotIndex] = positionListener; 9418 mCanMove[emptySlotIndex] = canMove; 9419 mNumberOfListeners++; 9420 } 9421 9422 public void removeSubscriber(TextViewPositionListener positionListener) { 9423 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9424 if (mPositionListeners[i] == positionListener) { 9425 mPositionListeners[i] = null; 9426 mNumberOfListeners--; 9427 break; 9428 } 9429 } 9430 9431 if (mNumberOfListeners == 0) { 9432 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9433 vto.removeOnPreDrawListener(this); 9434 } 9435 } 9436 9437 public int getPositionX() { 9438 return mPositionX; 9439 } 9440 9441 public int getPositionY() { 9442 return mPositionY; 9443 } 9444 9445 @Override 9446 public boolean onPreDraw() { 9447 updatePosition(); 9448 9449 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 9450 if (mPositionHasChanged || mScrollHasChanged || mCanMove[i]) { 9451 TextViewPositionListener positionListener = mPositionListeners[i]; 9452 if (positionListener != null) { 9453 positionListener.updatePosition(mPositionX, mPositionY, 9454 mPositionHasChanged, mScrollHasChanged); 9455 } 9456 } 9457 } 9458 9459 mScrollHasChanged = false; 9460 return true; 9461 } 9462 9463 private void updatePosition() { 9464 TextView.this.getLocationInWindow(mTempCoords); 9465 9466 mPositionHasChanged = mTempCoords[0] != mPositionX || mTempCoords[1] != mPositionY; 9467 9468 mPositionX = mTempCoords[0]; 9469 mPositionY = mTempCoords[1]; 9470 } 9471 9472 public boolean isVisible(int positionX, int positionY) { 9473 final TextView textView = TextView.this; 9474 9475 if (mTempRect == null) mTempRect = new Rect(); 9476 final Rect clip = mTempRect; 9477 clip.left = getCompoundPaddingLeft(); 9478 clip.top = getExtendedPaddingTop(); 9479 clip.right = textView.getWidth() - getCompoundPaddingRight(); 9480 clip.bottom = textView.getHeight() - getExtendedPaddingBottom(); 9481 9482 final ViewParent parent = textView.getParent(); 9483 if (parent == null || !parent.getChildVisibleRect(textView, clip, null)) { 9484 return false; 9485 } 9486 9487 int posX = mPositionX + positionX; 9488 int posY = mPositionY + positionY; 9489 9490 // Offset by 1 to take into account 0.5 and int rounding around getPrimaryHorizontal. 9491 return posX >= clip.left - 1 && posX <= clip.right + 1 && 9492 posY >= clip.top && posY <= clip.bottom; 9493 } 9494 9495 public boolean isOffsetVisible(int offset) { 9496 final int line = mLayout.getLineForOffset(offset); 9497 final int lineBottom = mLayout.getLineBottom(line); 9498 final int primaryHorizontal = (int) mLayout.getPrimaryHorizontal(offset); 9499 return isVisible(primaryHorizontal + viewportToContentHorizontalOffset(), 9500 lineBottom + viewportToContentVerticalOffset()); 9501 } 9502 9503 public void onScrollChanged() { 9504 mScrollHasChanged = true; 9505 } 9506 } 9507 9508 @Override 9509 protected void onScrollChanged(int horiz, int vert, int oldHoriz, int oldVert) { 9510 super.onScrollChanged(horiz, vert, oldHoriz, oldVert); 9511 if (mPositionListener != null) { 9512 mPositionListener.onScrollChanged(); 9513 } 9514 } 9515 9516 private abstract class PinnedPopupWindow implements TextViewPositionListener { 9517 protected PopupWindow mPopupWindow; 9518 protected ViewGroup mContentView; 9519 int mPositionX, mPositionY; 9520 9521 protected abstract void createPopupWindow(); 9522 protected abstract void initContentView(); 9523 protected abstract int getTextOffset(); 9524 protected abstract int getVerticalLocalPosition(int line); 9525 protected abstract int clipVertically(int positionY); 9526 9527 public PinnedPopupWindow() { 9528 createPopupWindow(); 9529 9530 mPopupWindow.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 9531 mPopupWindow.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 9532 mPopupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 9533 9534 initContentView(); 9535 9536 LayoutParams wrapContent = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 9537 ViewGroup.LayoutParams.WRAP_CONTENT); 9538 mContentView.setLayoutParams(wrapContent); 9539 9540 mPopupWindow.setContentView(mContentView); 9541 } 9542 9543 public void show() { 9544 TextView.this.getPositionListener().addSubscriber(this, false /* offset is fixed */); 9545 9546 computeLocalPosition(); 9547 9548 final PositionListener positionListener = TextView.this.getPositionListener(); 9549 updatePosition(positionListener.getPositionX(), positionListener.getPositionY()); 9550 } 9551 9552 protected void measureContent() { 9553 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9554 mContentView.measure( 9555 View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels, 9556 View.MeasureSpec.AT_MOST), 9557 View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels, 9558 View.MeasureSpec.AT_MOST)); 9559 } 9560 9561 /* The popup window will be horizontally centered on the getTextOffset() and vertically 9562 * positioned according to viewportToContentHorizontalOffset. 9563 * 9564 * This method assumes that mContentView has properly been measured from its content. */ 9565 private void computeLocalPosition() { 9566 measureContent(); 9567 final int width = mContentView.getMeasuredWidth(); 9568 final int offset = getTextOffset(); 9569 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - width / 2.0f); 9570 mPositionX += viewportToContentHorizontalOffset(); 9571 9572 final int line = mLayout.getLineForOffset(offset); 9573 mPositionY = getVerticalLocalPosition(line); 9574 mPositionY += viewportToContentVerticalOffset(); 9575 } 9576 9577 private void updatePosition(int parentPositionX, int parentPositionY) { 9578 int positionX = parentPositionX + mPositionX; 9579 int positionY = parentPositionY + mPositionY; 9580 9581 positionY = clipVertically(positionY); 9582 9583 // Horizontal clipping 9584 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9585 final int width = mContentView.getMeasuredWidth(); 9586 positionX = Math.min(displayMetrics.widthPixels - width, positionX); 9587 positionX = Math.max(0, positionX); 9588 9589 if (isShowing()) { 9590 mPopupWindow.update(positionX, positionY, -1, -1); 9591 } else { 9592 mPopupWindow.showAtLocation(TextView.this, Gravity.NO_GRAVITY, 9593 positionX, positionY); 9594 } 9595 } 9596 9597 public void hide() { 9598 mPopupWindow.dismiss(); 9599 TextView.this.getPositionListener().removeSubscriber(this); 9600 } 9601 9602 @Override 9603 public void updatePosition(int parentPositionX, int parentPositionY, 9604 boolean parentPositionChanged, boolean parentScrolled) { 9605 // Either parentPositionChanged or parentScrolled is true, check if still visible 9606 if (isShowing() && getPositionListener().isOffsetVisible(getTextOffset())) { 9607 if (parentScrolled) computeLocalPosition(); 9608 updatePosition(parentPositionX, parentPositionY); 9609 } else { 9610 hide(); 9611 } 9612 } 9613 9614 public boolean isShowing() { 9615 return mPopupWindow.isShowing(); 9616 } 9617 } 9618 9619 private class SuggestionsPopupWindow extends PinnedPopupWindow implements OnItemClickListener { 9620 private static final int MAX_NUMBER_SUGGESTIONS = SuggestionSpan.SUGGESTIONS_MAX_SIZE; 9621 private static final int ADD_TO_DICTIONARY = -1; 9622 private static final int DELETE_TEXT = -2; 9623 private SuggestionInfo[] mSuggestionInfos; 9624 private int mNumberOfSuggestions; 9625 private boolean mCursorWasVisibleBeforeSuggestions; 9626 private boolean mIsShowingUp = false; 9627 private SuggestionAdapter mSuggestionsAdapter; 9628 private final Comparator<SuggestionSpan> mSuggestionSpanComparator; 9629 private final HashMap<SuggestionSpan, Integer> mSpansLengths; 9630 9631 private class CustomPopupWindow extends PopupWindow { 9632 public CustomPopupWindow(Context context, int defStyle) { 9633 super(context, null, defStyle); 9634 } 9635 9636 @Override 9637 public void dismiss() { 9638 super.dismiss(); 9639 9640 TextView.this.getPositionListener().removeSubscriber(SuggestionsPopupWindow.this); 9641 9642 // Safe cast since show() checks that mText is an Editable 9643 ((Spannable) mText).removeSpan(mSuggestionRangeSpan); 9644 9645 setCursorVisible(mCursorWasVisibleBeforeSuggestions); 9646 if (hasInsertionController()) { 9647 getInsertionController().show(); 9648 } 9649 } 9650 } 9651 9652 public SuggestionsPopupWindow() { 9653 mCursorWasVisibleBeforeSuggestions = mCursorVisible; 9654 mSuggestionSpanComparator = new SuggestionSpanComparator(); 9655 mSpansLengths = new HashMap<SuggestionSpan, Integer>(); 9656 } 9657 9658 @Override 9659 protected void createPopupWindow() { 9660 mPopupWindow = new CustomPopupWindow(TextView.this.mContext, 9661 com.android.internal.R.attr.textSuggestionsWindowStyle); 9662 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 9663 mPopupWindow.setFocusable(true); 9664 mPopupWindow.setClippingEnabled(false); 9665 } 9666 9667 @Override 9668 protected void initContentView() { 9669 ListView listView = new ListView(TextView.this.getContext()); 9670 mSuggestionsAdapter = new SuggestionAdapter(); 9671 listView.setAdapter(mSuggestionsAdapter); 9672 listView.setOnItemClickListener(this); 9673 mContentView = listView; 9674 9675 // Inflate the suggestion items once and for all. + 2 for add to dictionary and delete 9676 mSuggestionInfos = new SuggestionInfo[MAX_NUMBER_SUGGESTIONS + 2]; 9677 for (int i = 0; i < mSuggestionInfos.length; i++) { 9678 mSuggestionInfos[i] = new SuggestionInfo(); 9679 } 9680 } 9681 9682 public boolean isShowingUp() { 9683 return mIsShowingUp; 9684 } 9685 9686 public void onParentLostFocus() { 9687 mIsShowingUp = false; 9688 } 9689 9690 private class SuggestionInfo { 9691 int suggestionStart, suggestionEnd; // range of actual suggestion within text 9692 SuggestionSpan suggestionSpan; // the SuggestionSpan that this TextView represents 9693 int suggestionIndex; // the index of this suggestion inside suggestionSpan 9694 SpannableStringBuilder text = new SpannableStringBuilder(); 9695 TextAppearanceSpan highlightSpan = new TextAppearanceSpan(mContext, 9696 android.R.style.TextAppearance_SuggestionHighlight); 9697 } 9698 9699 private class SuggestionAdapter extends BaseAdapter { 9700 private LayoutInflater mInflater = (LayoutInflater) TextView.this.mContext. 9701 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 9702 9703 @Override 9704 public int getCount() { 9705 return mNumberOfSuggestions; 9706 } 9707 9708 @Override 9709 public Object getItem(int position) { 9710 return mSuggestionInfos[position]; 9711 } 9712 9713 @Override 9714 public long getItemId(int position) { 9715 return position; 9716 } 9717 9718 @Override 9719 public View getView(int position, View convertView, ViewGroup parent) { 9720 TextView textView = (TextView) convertView; 9721 9722 if (textView == null) { 9723 textView = (TextView) mInflater.inflate(mTextEditSuggestionItemLayout, parent, 9724 false); 9725 } 9726 9727 final SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 9728 textView.setText(suggestionInfo.text); 9729 9730 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 9731 textView.setCompoundDrawablesWithIntrinsicBounds( 9732 com.android.internal.R.drawable.ic_suggestions_add, 0, 0, 0); 9733 } else if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 9734 textView.setCompoundDrawablesWithIntrinsicBounds( 9735 com.android.internal.R.drawable.ic_suggestions_delete, 0, 0, 0); 9736 } else { 9737 textView.setCompoundDrawables(null, null, null, null); 9738 } 9739 9740 return textView; 9741 } 9742 } 9743 9744 private class SuggestionSpanComparator implements Comparator<SuggestionSpan> { 9745 public int compare(SuggestionSpan span1, SuggestionSpan span2) { 9746 final int flag1 = span1.getFlags(); 9747 final int flag2 = span2.getFlags(); 9748 if (flag1 != flag2) { 9749 // The order here should match what is used in updateDrawState 9750 final boolean easy1 = (flag1 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 9751 final boolean easy2 = (flag2 & SuggestionSpan.FLAG_EASY_CORRECT) != 0; 9752 final boolean misspelled1 = (flag1 & SuggestionSpan.FLAG_MISSPELLED) != 0; 9753 final boolean misspelled2 = (flag2 & SuggestionSpan.FLAG_MISSPELLED) != 0; 9754 if (easy1 && !misspelled1) return -1; 9755 if (easy2 && !misspelled2) return 1; 9756 if (misspelled1) return -1; 9757 if (misspelled2) return 1; 9758 } 9759 9760 return mSpansLengths.get(span1).intValue() - mSpansLengths.get(span2).intValue(); 9761 } 9762 } 9763 9764 /** 9765 * Returns the suggestion spans that cover the current cursor position. The suggestion 9766 * spans are sorted according to the length of text that they are attached to. 9767 */ 9768 private SuggestionSpan[] getSuggestionSpans() { 9769 int pos = TextView.this.getSelectionStart(); 9770 Spannable spannable = (Spannable) TextView.this.mText; 9771 SuggestionSpan[] suggestionSpans = spannable.getSpans(pos, pos, SuggestionSpan.class); 9772 9773 mSpansLengths.clear(); 9774 for (SuggestionSpan suggestionSpan : suggestionSpans) { 9775 int start = spannable.getSpanStart(suggestionSpan); 9776 int end = spannable.getSpanEnd(suggestionSpan); 9777 mSpansLengths.put(suggestionSpan, Integer.valueOf(end - start)); 9778 } 9779 9780 // The suggestions are sorted according to their types (easy correction first, then 9781 // misspelled) and to the length of the text that they cover (shorter first). 9782 Arrays.sort(suggestionSpans, mSuggestionSpanComparator); 9783 return suggestionSpans; 9784 } 9785 9786 @Override 9787 public void show() { 9788 if (!(mText instanceof Editable)) return; 9789 9790 updateSuggestions(); 9791 mCursorWasVisibleBeforeSuggestions = mCursorVisible; 9792 setCursorVisible(false); 9793 mIsShowingUp = true; 9794 super.show(); 9795 } 9796 9797 @Override 9798 protected void measureContent() { 9799 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9800 final int horizontalMeasure = View.MeasureSpec.makeMeasureSpec( 9801 displayMetrics.widthPixels, View.MeasureSpec.AT_MOST); 9802 final int verticalMeasure = View.MeasureSpec.makeMeasureSpec( 9803 displayMetrics.heightPixels, View.MeasureSpec.AT_MOST); 9804 9805 int width = 0; 9806 View view = null; 9807 for (int i = 0; i < mNumberOfSuggestions; i++) { 9808 view = mSuggestionsAdapter.getView(i, view, mContentView); 9809 view.getLayoutParams().width = LayoutParams.WRAP_CONTENT; 9810 view.measure(horizontalMeasure, verticalMeasure); 9811 width = Math.max(width, view.getMeasuredWidth()); 9812 } 9813 9814 // Enforce the width based on actual text widths 9815 mContentView.measure( 9816 View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY), 9817 verticalMeasure); 9818 9819 Drawable popupBackground = mPopupWindow.getBackground(); 9820 if (popupBackground != null) { 9821 if (mTempRect == null) mTempRect = new Rect(); 9822 popupBackground.getPadding(mTempRect); 9823 width += mTempRect.left + mTempRect.right; 9824 } 9825 mPopupWindow.setWidth(width); 9826 } 9827 9828 @Override 9829 protected int getTextOffset() { 9830 return getSelectionStart(); 9831 } 9832 9833 @Override 9834 protected int getVerticalLocalPosition(int line) { 9835 return mLayout.getLineBottom(line); 9836 } 9837 9838 @Override 9839 protected int clipVertically(int positionY) { 9840 final int height = mContentView.getMeasuredHeight(); 9841 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9842 return Math.min(positionY, displayMetrics.heightPixels - height); 9843 } 9844 9845 @Override 9846 public void hide() { 9847 super.hide(); 9848 } 9849 9850 private void updateSuggestions() { 9851 Spannable spannable = (Spannable) TextView.this.mText; 9852 SuggestionSpan[] suggestionSpans = getSuggestionSpans(); 9853 9854 final int nbSpans = suggestionSpans.length; 9855 9856 mNumberOfSuggestions = 0; 9857 int spanUnionStart = mText.length(); 9858 int spanUnionEnd = 0; 9859 9860 SuggestionSpan misspelledSpan = null; 9861 int underlineColor = 0; 9862 9863 for (int spanIndex = 0; spanIndex < nbSpans; spanIndex++) { 9864 SuggestionSpan suggestionSpan = suggestionSpans[spanIndex]; 9865 final int spanStart = spannable.getSpanStart(suggestionSpan); 9866 final int spanEnd = spannable.getSpanEnd(suggestionSpan); 9867 spanUnionStart = Math.min(spanStart, spanUnionStart); 9868 spanUnionEnd = Math.max(spanEnd, spanUnionEnd); 9869 9870 if ((suggestionSpan.getFlags() & SuggestionSpan.FLAG_MISSPELLED) != 0) { 9871 misspelledSpan = suggestionSpan; 9872 } 9873 9874 // The first span dictates the background color of the highlighted text 9875 if (spanIndex == 0) underlineColor = suggestionSpan.getUnderlineColor(); 9876 9877 String[] suggestions = suggestionSpan.getSuggestions(); 9878 int nbSuggestions = suggestions.length; 9879 for (int suggestionIndex = 0; suggestionIndex < nbSuggestions; suggestionIndex++) { 9880 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 9881 suggestionInfo.suggestionSpan = suggestionSpan; 9882 suggestionInfo.suggestionIndex = suggestionIndex; 9883 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 9884 suggestions[suggestionIndex]); 9885 9886 mNumberOfSuggestions++; 9887 if (mNumberOfSuggestions == MAX_NUMBER_SUGGESTIONS) { 9888 // Also end outer for loop 9889 spanIndex = nbSpans; 9890 break; 9891 } 9892 } 9893 } 9894 9895 for (int i = 0; i < mNumberOfSuggestions; i++) { 9896 highlightTextDifferences(mSuggestionInfos[i], spanUnionStart, spanUnionEnd); 9897 } 9898 9899 // Add to dictionary item is there a span with the misspelled flag 9900 if (misspelledSpan != null) { 9901 final int misspelledStart = spannable.getSpanStart(misspelledSpan); 9902 final int misspelledEnd = spannable.getSpanEnd(misspelledSpan); 9903 if (misspelledStart >= 0 && misspelledEnd > misspelledStart) { 9904 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 9905 suggestionInfo.suggestionSpan = misspelledSpan; 9906 suggestionInfo.suggestionIndex = ADD_TO_DICTIONARY; 9907 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 9908 getContext().getString(com.android.internal.R.string.addToDictionary)); 9909 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 9910 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9911 9912 mNumberOfSuggestions++; 9913 } 9914 } 9915 9916 // Delete item 9917 SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions]; 9918 suggestionInfo.suggestionSpan = null; 9919 suggestionInfo.suggestionIndex = DELETE_TEXT; 9920 suggestionInfo.text.replace(0, suggestionInfo.text.length(), 9921 getContext().getString(com.android.internal.R.string.deleteText)); 9922 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0, 9923 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9924 mNumberOfSuggestions++; 9925 9926 if (mSuggestionRangeSpan == null) mSuggestionRangeSpan = new SuggestionRangeSpan(); 9927 if (underlineColor == 0) { 9928 // Fallback on the default highlight color when the first span does not provide one 9929 mSuggestionRangeSpan.setBackgroundColor(mHighlightColor); 9930 } else { 9931 final float BACKGROUND_TRANSPARENCY = 0.4f; 9932 final int newAlpha = (int) (Color.alpha(underlineColor) * BACKGROUND_TRANSPARENCY); 9933 mSuggestionRangeSpan.setBackgroundColor( 9934 (underlineColor & 0x00FFFFFF) + (newAlpha << 24)); 9935 } 9936 spannable.setSpan(mSuggestionRangeSpan, spanUnionStart, spanUnionEnd, 9937 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9938 9939 mSuggestionsAdapter.notifyDataSetChanged(); 9940 } 9941 9942 private void highlightTextDifferences(SuggestionInfo suggestionInfo, int unionStart, 9943 int unionEnd) { 9944 final Spannable text = (Spannable) mText; 9945 final int spanStart = text.getSpanStart(suggestionInfo.suggestionSpan); 9946 final int spanEnd = text.getSpanEnd(suggestionInfo.suggestionSpan); 9947 9948 // Adjust the start/end of the suggestion span 9949 suggestionInfo.suggestionStart = spanStart - unionStart; 9950 suggestionInfo.suggestionEnd = suggestionInfo.suggestionStart 9951 + suggestionInfo.text.length(); 9952 9953 suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 9954 suggestionInfo.text.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9955 9956 // Add the text before and after the span. 9957 suggestionInfo.text.insert(0, mText.toString().substring(unionStart, spanStart)); 9958 suggestionInfo.text.append(mText.toString().substring(spanEnd, unionEnd)); 9959 } 9960 9961 @Override 9962 public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 9963 TextView textView = (TextView) view; 9964 Editable editable = (Editable) mText; 9965 9966 SuggestionInfo suggestionInfo = mSuggestionInfos[position]; 9967 9968 if (suggestionInfo.suggestionIndex == DELETE_TEXT) { 9969 final int spanUnionStart = editable.getSpanStart(mSuggestionRangeSpan); 9970 int spanUnionEnd = editable.getSpanEnd(mSuggestionRangeSpan); 9971 if (spanUnionStart >= 0 && spanUnionEnd > spanUnionStart) { 9972 // Do not leave two adjacent spaces after deletion, or one at beginning of text 9973 if (spanUnionEnd < editable.length() && 9974 Character.isSpaceChar(editable.charAt(spanUnionEnd)) && 9975 (spanUnionStart == 0 || 9976 Character.isSpaceChar(editable.charAt(spanUnionStart - 1)))) { 9977 spanUnionEnd = spanUnionEnd + 1; 9978 } 9979 editable.replace(spanUnionStart, spanUnionEnd, ""); 9980 } 9981 hide(); 9982 return; 9983 } 9984 9985 final int spanStart = editable.getSpanStart(suggestionInfo.suggestionSpan); 9986 final int spanEnd = editable.getSpanEnd(suggestionInfo.suggestionSpan); 9987 if (spanStart < 0 || spanEnd < 0) { 9988 // Span has been removed 9989 hide(); 9990 return; 9991 } 9992 final String originalText = mText.toString().substring(spanStart, spanEnd); 9993 9994 if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) { 9995 Intent intent = new Intent(Settings.ACTION_USER_DICTIONARY_INSERT); 9996 intent.putExtra("word", originalText); 9997 intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK); 9998 getContext().startActivity(intent); 9999 // There is no way to know if the word was indeed added. Re-check. 10000 editable.removeSpan(suggestionInfo.suggestionSpan); 10001 updateSpellCheckSpans(spanStart, spanEnd); 10002 } else { 10003 // SuggestionSpans are removed by replace: save them before 10004 SuggestionSpan[] suggestionSpans = editable.getSpans(spanStart, spanEnd, 10005 SuggestionSpan.class); 10006 final int length = suggestionSpans.length; 10007 int[] suggestionSpansStarts = new int[length]; 10008 int[] suggestionSpansEnds = new int[length]; 10009 int[] suggestionSpansFlags = new int[length]; 10010 for (int i = 0; i < length; i++) { 10011 final SuggestionSpan suggestionSpan = suggestionSpans[i]; 10012 suggestionSpansStarts[i] = editable.getSpanStart(suggestionSpan); 10013 suggestionSpansEnds[i] = editable.getSpanEnd(suggestionSpan); 10014 suggestionSpansFlags[i] = editable.getSpanFlags(suggestionSpan); 10015 10016 // Remove potential misspelled flags 10017 int suggestionSpanFlags = suggestionSpan.getFlags(); 10018 if ((suggestionSpanFlags & SuggestionSpan.FLAG_MISSPELLED) > 0) { 10019 suggestionSpanFlags &= ~SuggestionSpan.FLAG_MISSPELLED; 10020 suggestionSpanFlags &= ~SuggestionSpan.FLAG_EASY_CORRECT; 10021 suggestionSpan.setFlags(suggestionSpanFlags); 10022 } 10023 } 10024 10025 final int suggestionStart = suggestionInfo.suggestionStart; 10026 final int suggestionEnd = suggestionInfo.suggestionEnd; 10027 final String suggestion = textView.getText().subSequence( 10028 suggestionStart, suggestionEnd).toString(); 10029 editable.replace(spanStart, spanEnd, suggestion); 10030 10031 // Notify source IME of the suggestion pick. Do this before swaping texts. 10032 if (!TextUtils.isEmpty( 10033 suggestionInfo.suggestionSpan.getNotificationTargetClassName())) { 10034 InputMethodManager imm = InputMethodManager.peekInstance(); 10035 if (imm != null) { 10036 imm.notifySuggestionPicked(suggestionInfo.suggestionSpan, originalText, 10037 suggestionInfo.suggestionIndex); 10038 } 10039 } 10040 10041 // Swap text content between actual text and Suggestion span 10042 String[] suggestions = suggestionInfo.suggestionSpan.getSuggestions(); 10043 suggestions[suggestionInfo.suggestionIndex] = originalText; 10044 10045 // Restore previous SuggestionSpans 10046 final int lengthDifference = suggestion.length() - (spanEnd - spanStart); 10047 for (int i = 0; i < length; i++) { 10048 // Only spans that include the modified region make sense after replacement 10049 // Spans partially included in the replaced region are removed, there is no 10050 // way to assign them a valid range after replacement 10051 if (suggestionSpansStarts[i] <= spanStart && 10052 suggestionSpansEnds[i] >= spanEnd) { 10053 editable.setSpan(suggestionSpans[i], suggestionSpansStarts[i], 10054 suggestionSpansEnds[i] + lengthDifference, suggestionSpansFlags[i]); 10055 } 10056 } 10057 10058 // Move cursor at the end of the replaced word 10059 Selection.setSelection(editable, spanEnd + lengthDifference); 10060 } 10061 10062 hide(); 10063 } 10064 } 10065 10066 /** 10067 * Removes the suggestion spans. 10068 */ 10069 CharSequence removeSuggestionSpans(CharSequence text) { 10070 if (text instanceof Spanned) { 10071 Spannable spannable; 10072 if (text instanceof Spannable) { 10073 spannable = (Spannable) text; 10074 } else { 10075 spannable = new SpannableString(text); 10076 text = spannable; 10077 } 10078 10079 SuggestionSpan[] spans = spannable.getSpans(0, text.length(), SuggestionSpan.class); 10080 for (int i = 0; i < spans.length; i++) { 10081 spannable.removeSpan(spans[i]); 10082 } 10083 } 10084 return text; 10085 } 10086 10087 void showSuggestions() { 10088 if (mSuggestionsPopupWindow == null) { 10089 mSuggestionsPopupWindow = new SuggestionsPopupWindow(); 10090 } 10091 hideControllers(); 10092 mSuggestionsPopupWindow.show(); 10093 } 10094 10095 boolean areSuggestionsShown() { 10096 return mSuggestionsPopupWindow != null && mSuggestionsPopupWindow.isShowing(); 10097 } 10098 10099 /** 10100 * Return whether or not suggestions are enabled on this TextView. The suggestions are generated 10101 * by the IME or by the spell checker as the user types. This is done by adding 10102 * {@link SuggestionSpan}s to the text. 10103 * 10104 * When suggestions are enabled (default), this list of suggestions will be displayed when the 10105 * user asks for them on these parts of the text. This value depends on the inputType of this 10106 * TextView. 10107 * 10108 * The class of the input type must be {@link InputType#TYPE_CLASS_TEXT}. 10109 * 10110 * In addition, the type variation must be one of 10111 * {@link InputType#TYPE_TEXT_VARIATION_NORMAL}, 10112 * {@link InputType#TYPE_TEXT_VARIATION_EMAIL_SUBJECT}, 10113 * {@link InputType#TYPE_TEXT_VARIATION_LONG_MESSAGE}, 10114 * {@link InputType#TYPE_TEXT_VARIATION_SHORT_MESSAGE} or 10115 * {@link InputType#TYPE_TEXT_VARIATION_WEB_EDIT_TEXT}. 10116 * 10117 * And finally, the {@link InputType#TYPE_TEXT_FLAG_NO_SUGGESTIONS} flag must <i>not</i> be set. 10118 * 10119 * @return true if the suggestions popup window is enabled, based on the inputType. 10120 */ 10121 public boolean isSuggestionsEnabled() { 10122 if ((mInputType & InputType.TYPE_MASK_CLASS) != InputType.TYPE_CLASS_TEXT) return false; 10123 if ((mInputType & InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS) > 0) return false; 10124 10125 final int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 10126 return (variation == EditorInfo.TYPE_TEXT_VARIATION_NORMAL || 10127 variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT || 10128 variation == EditorInfo.TYPE_TEXT_VARIATION_LONG_MESSAGE || 10129 variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE || 10130 variation == EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT); 10131 } 10132 10133 /** 10134 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 10135 * selection is initiated in this View. 10136 * 10137 * The standard implementation populates the menu with a subset of Select All, Cut, Copy and 10138 * Paste actions, depending on what this View supports. 10139 * 10140 * A custom implementation can add new entries in the default menu in its 10141 * {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The 10142 * default actions can also be removed from the menu using {@link Menu#removeItem(int)} and 10143 * passing {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy} 10144 * or {@link android.R.id#paste} ids as parameters. 10145 * 10146 * Returning false from 10147 * {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will prevent 10148 * the action mode from being started. 10149 * 10150 * Action click events should be handled by the custom implementation of 10151 * {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}. 10152 * 10153 * Note that text selection mode is not started when a TextView receives focus and the 10154 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 10155 * that case, to allow for quick replacement. 10156 */ 10157 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 10158 mCustomSelectionActionModeCallback = actionModeCallback; 10159 } 10160 10161 /** 10162 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 10163 * 10164 * @return The current custom selection callback. 10165 */ 10166 public ActionMode.Callback getCustomSelectionActionModeCallback() { 10167 return mCustomSelectionActionModeCallback; 10168 } 10169 10170 /** 10171 * 10172 * @return true if the selection mode was actually started. 10173 */ 10174 private boolean startSelectionActionMode() { 10175 if (mSelectionActionMode != null) { 10176 // Selection action mode is already started 10177 return false; 10178 } 10179 10180 if (!canSelectText() || !requestFocus()) { 10181 Log.w(LOG_TAG, "TextView does not support text selection. Action mode cancelled."); 10182 return false; 10183 } 10184 10185 if (!hasSelection()) { 10186 // There may already be a selection on device rotation 10187 if (!selectCurrentWord()) { 10188 // No word found under cursor or text selection not permitted. 10189 return false; 10190 } 10191 } 10192 10193 final InputMethodManager imm = InputMethodManager.peekInstance(); 10194 boolean extractedTextModeWillBeStartedFullScreen = !(this instanceof ExtractEditText) && 10195 imm != null && imm.isFullscreenMode(); 10196 10197 // Do not start the action mode when extracted text will show up full screen, thus 10198 // immediately hiding the newly created action bar, which would be visually distracting. 10199 if (!extractedTextModeWillBeStartedFullScreen) { 10200 ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); 10201 mSelectionActionMode = startActionMode(actionModeCallback); 10202 } 10203 final boolean selectionStarted = mSelectionActionMode != null || 10204 extractedTextModeWillBeStartedFullScreen; 10205 10206 if (selectionStarted && !mTextIsSelectable && imm != null && mSoftInputShownOnFocus) { 10207 // Show the IME to be able to replace text, except when selecting non editable text. 10208 imm.showSoftInput(this, 0, null); 10209 } 10210 10211 return selectionStarted; 10212 } 10213 10214 private void stopSelectionActionMode() { 10215 if (mSelectionActionMode != null) { 10216 // This will hide the mSelectionModifierCursorController 10217 mSelectionActionMode.finish(); 10218 } 10219 } 10220 10221 /** 10222 * Paste clipboard content between min and max positions. 10223 */ 10224 private void paste(int min, int max) { 10225 ClipboardManager clipboard = 10226 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 10227 ClipData clip = clipboard.getPrimaryClip(); 10228 if (clip != null) { 10229 boolean didFirst = false; 10230 for (int i=0; i<clip.getItemCount(); i++) { 10231 CharSequence paste = clip.getItemAt(i).coerceToText(getContext()); 10232 if (paste != null) { 10233 if (!didFirst) { 10234 long minMax = prepareSpacesAroundPaste(min, max, paste); 10235 min = extractRangeStartFromLong(minMax); 10236 max = extractRangeEndFromLong(minMax); 10237 Selection.setSelection((Spannable) mText, max); 10238 ((Editable) mText).replace(min, max, paste); 10239 didFirst = true; 10240 } else { 10241 ((Editable) mText).insert(getSelectionEnd(), "\n"); 10242 ((Editable) mText).insert(getSelectionEnd(), paste); 10243 } 10244 } 10245 } 10246 stopSelectionActionMode(); 10247 sLastCutOrCopyTime = 0; 10248 } 10249 } 10250 10251 private void setPrimaryClip(ClipData clip) { 10252 ClipboardManager clipboard = (ClipboardManager) getContext(). 10253 getSystemService(Context.CLIPBOARD_SERVICE); 10254 clipboard.setPrimaryClip(clip); 10255 sLastCutOrCopyTime = SystemClock.uptimeMillis(); 10256 } 10257 10258 /** 10259 * An ActionMode Callback class that is used to provide actions while in text selection mode. 10260 * 10261 * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending 10262 * on which of these this TextView supports. 10263 */ 10264 private class SelectionActionModeCallback implements ActionMode.Callback { 10265 10266 @Override 10267 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 10268 TypedArray styledAttributes = mContext.obtainStyledAttributes( 10269 com.android.internal.R.styleable.SelectionModeDrawables); 10270 10271 boolean allowText = getContext().getResources().getBoolean( 10272 com.android.internal.R.bool.config_allowActionMenuItemTextWithIcon); 10273 10274 mode.setTitle(allowText ? 10275 mContext.getString(com.android.internal.R.string.textSelectionCABTitle) : null); 10276 mode.setSubtitle(null); 10277 10278 int selectAllIconId = 0; // No icon by default 10279 if (!allowText) { 10280 // Provide an icon, text will not be displayed on smaller screens. 10281 selectAllIconId = styledAttributes.getResourceId( 10282 R.styleable.SelectionModeDrawables_actionModeSelectAllDrawable, 0); 10283 } 10284 10285 menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 10286 setIcon(selectAllIconId). 10287 setAlphabeticShortcut('a'). 10288 setShowAsAction( 10289 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10290 10291 if (canCut()) { 10292 menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut). 10293 setIcon(styledAttributes.getResourceId( 10294 R.styleable.SelectionModeDrawables_actionModeCutDrawable, 0)). 10295 setAlphabeticShortcut('x'). 10296 setShowAsAction( 10297 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10298 } 10299 10300 if (canCopy()) { 10301 menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy). 10302 setIcon(styledAttributes.getResourceId( 10303 R.styleable.SelectionModeDrawables_actionModeCopyDrawable, 0)). 10304 setAlphabeticShortcut('c'). 10305 setShowAsAction( 10306 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10307 } 10308 10309 if (canPaste()) { 10310 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 10311 setIcon(styledAttributes.getResourceId( 10312 R.styleable.SelectionModeDrawables_actionModePasteDrawable, 0)). 10313 setAlphabeticShortcut('v'). 10314 setShowAsAction( 10315 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 10316 } 10317 10318 styledAttributes.recycle(); 10319 10320 if (mCustomSelectionActionModeCallback != null) { 10321 if (!mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) { 10322 // The custom mode can choose to cancel the action mode 10323 return false; 10324 } 10325 } 10326 10327 if (menu.hasVisibleItems() || mode.getCustomView() != null) { 10328 getSelectionController().show(); 10329 return true; 10330 } else { 10331 return false; 10332 } 10333 } 10334 10335 @Override 10336 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 10337 if (mCustomSelectionActionModeCallback != null) { 10338 return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); 10339 } 10340 return true; 10341 } 10342 10343 @Override 10344 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 10345 if (mCustomSelectionActionModeCallback != null && 10346 mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { 10347 return true; 10348 } 10349 return onTextContextMenuItem(item.getItemId()); 10350 } 10351 10352 @Override 10353 public void onDestroyActionMode(ActionMode mode) { 10354 if (mCustomSelectionActionModeCallback != null) { 10355 mCustomSelectionActionModeCallback.onDestroyActionMode(mode); 10356 } 10357 Selection.setSelection((Spannable) mText, getSelectionEnd()); 10358 10359 if (mSelectionModifierCursorController != null) { 10360 mSelectionModifierCursorController.hide(); 10361 } 10362 10363 mSelectionActionMode = null; 10364 } 10365 } 10366 10367 private class ActionPopupWindow extends PinnedPopupWindow implements OnClickListener { 10368 private static final int POPUP_TEXT_LAYOUT = 10369 com.android.internal.R.layout.text_edit_action_popup_text; 10370 private TextView mPasteTextView; 10371 private TextView mReplaceTextView; 10372 10373 @Override 10374 protected void createPopupWindow() { 10375 mPopupWindow = new PopupWindow(TextView.this.mContext, null, 10376 com.android.internal.R.attr.textSelectHandleWindowStyle); 10377 mPopupWindow.setClippingEnabled(true); 10378 } 10379 10380 @Override 10381 protected void initContentView() { 10382 LinearLayout linearLayout = new LinearLayout(TextView.this.getContext()); 10383 linearLayout.setOrientation(LinearLayout.HORIZONTAL); 10384 mContentView = linearLayout; 10385 mContentView.setBackgroundResource( 10386 com.android.internal.R.drawable.text_edit_paste_window); 10387 10388 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 10389 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 10390 10391 LayoutParams wrapContent = new LayoutParams( 10392 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 10393 10394 mPasteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 10395 mPasteTextView.setLayoutParams(wrapContent); 10396 mContentView.addView(mPasteTextView); 10397 mPasteTextView.setText(com.android.internal.R.string.paste); 10398 mPasteTextView.setOnClickListener(this); 10399 10400 mReplaceTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 10401 mReplaceTextView.setLayoutParams(wrapContent); 10402 mContentView.addView(mReplaceTextView); 10403 mReplaceTextView.setText(com.android.internal.R.string.replace); 10404 mReplaceTextView.setOnClickListener(this); 10405 } 10406 10407 @Override 10408 public void show() { 10409 boolean canPaste = canPaste(); 10410 boolean canSuggest = isSuggestionsEnabled() && isCursorInsideSuggestionSpan(); 10411 mPasteTextView.setVisibility(canPaste ? View.VISIBLE : View.GONE); 10412 mReplaceTextView.setVisibility(canSuggest ? View.VISIBLE : View.GONE); 10413 10414 if (!canPaste && !canSuggest) return; 10415 10416 super.show(); 10417 } 10418 10419 @Override 10420 public void onClick(View view) { 10421 if (view == mPasteTextView && canPaste()) { 10422 onTextContextMenuItem(ID_PASTE); 10423 hide(); 10424 } else if (view == mReplaceTextView) { 10425 final int middle = (getSelectionStart() + getSelectionEnd()) / 2; 10426 stopSelectionActionMode(); 10427 Selection.setSelection((Spannable) mText, middle); 10428 showSuggestions(); 10429 } 10430 } 10431 10432 @Override 10433 protected int getTextOffset() { 10434 return (getSelectionStart() + getSelectionEnd()) / 2; 10435 } 10436 10437 @Override 10438 protected int getVerticalLocalPosition(int line) { 10439 return mLayout.getLineTop(line) - mContentView.getMeasuredHeight(); 10440 } 10441 10442 @Override 10443 protected int clipVertically(int positionY) { 10444 if (positionY < 0) { 10445 final int offset = getTextOffset(); 10446 final int line = mLayout.getLineForOffset(offset); 10447 positionY += mLayout.getLineBottom(line) - mLayout.getLineTop(line); 10448 positionY += mContentView.getMeasuredHeight(); 10449 10450 // Assumes insertion and selection handles share the same height 10451 final Drawable handle = mContext.getResources().getDrawable(mTextSelectHandleRes); 10452 positionY += handle.getIntrinsicHeight(); 10453 } 10454 10455 return positionY; 10456 } 10457 } 10458 10459 private abstract class HandleView extends View implements TextViewPositionListener { 10460 protected Drawable mDrawable; 10461 protected Drawable mDrawableLtr; 10462 protected Drawable mDrawableRtl; 10463 private final PopupWindow mContainer; 10464 // Position with respect to the parent TextView 10465 private int mPositionX, mPositionY; 10466 private boolean mIsDragging; 10467 // Offset from touch position to mPosition 10468 private float mTouchToWindowOffsetX, mTouchToWindowOffsetY; 10469 protected int mHotspotX; 10470 // Offsets the hotspot point up, so that cursor is not hidden by the finger when moving up 10471 private float mTouchOffsetY; 10472 // Where the touch position should be on the handle to ensure a maximum cursor visibility 10473 private float mIdealVerticalOffset; 10474 // Parent's (TextView) previous position in window 10475 private int mLastParentX, mLastParentY; 10476 // Transient action popup window for Paste and Replace actions 10477 protected ActionPopupWindow mActionPopupWindow; 10478 // Previous text character offset 10479 private int mPreviousOffset = -1; 10480 // Previous text character offset 10481 private boolean mPositionHasChanged = true; 10482 // Used to delay the appearance of the action popup window 10483 private Runnable mActionPopupShower; 10484 10485 public HandleView(Drawable drawableLtr, Drawable drawableRtl) { 10486 super(TextView.this.mContext); 10487 mContainer = new PopupWindow(TextView.this.mContext, null, 10488 com.android.internal.R.attr.textSelectHandleWindowStyle); 10489 mContainer.setSplitTouchEnabled(true); 10490 mContainer.setClippingEnabled(false); 10491 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 10492 mContainer.setContentView(this); 10493 10494 mDrawableLtr = drawableLtr; 10495 mDrawableRtl = drawableRtl; 10496 10497 updateDrawable(); 10498 10499 final int handleHeight = mDrawable.getIntrinsicHeight(); 10500 mTouchOffsetY = -0.3f * handleHeight; 10501 mIdealVerticalOffset = 0.7f * handleHeight; 10502 } 10503 10504 protected void updateDrawable() { 10505 final int offset = getCurrentCursorOffset(); 10506 final boolean isRtlCharAtOffset = mLayout.isRtlCharAt(offset); 10507 mDrawable = isRtlCharAtOffset ? mDrawableRtl : mDrawableLtr; 10508 mHotspotX = getHotspotX(mDrawable, isRtlCharAtOffset); 10509 } 10510 10511 protected abstract int getHotspotX(Drawable drawable, boolean isRtlRun); 10512 10513 // Touch-up filter: number of previous positions remembered 10514 private static final int HISTORY_SIZE = 5; 10515 private static final int TOUCH_UP_FILTER_DELAY_AFTER = 150; 10516 private static final int TOUCH_UP_FILTER_DELAY_BEFORE = 350; 10517 private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; 10518 private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; 10519 private int mPreviousOffsetIndex = 0; 10520 private int mNumberPreviousOffsets = 0; 10521 10522 private void startTouchUpFilter(int offset) { 10523 mNumberPreviousOffsets = 0; 10524 addPositionToTouchUpFilter(offset); 10525 } 10526 10527 private void addPositionToTouchUpFilter(int offset) { 10528 mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; 10529 mPreviousOffsets[mPreviousOffsetIndex] = offset; 10530 mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); 10531 mNumberPreviousOffsets++; 10532 } 10533 10534 private void filterOnTouchUp() { 10535 final long now = SystemClock.uptimeMillis(); 10536 int i = 0; 10537 int index = mPreviousOffsetIndex; 10538 final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); 10539 while (i < iMax && (now - mPreviousOffsetsTimes[index]) < TOUCH_UP_FILTER_DELAY_AFTER) { 10540 i++; 10541 index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; 10542 } 10543 10544 if (i > 0 && i < iMax && 10545 (now - mPreviousOffsetsTimes[index]) > TOUCH_UP_FILTER_DELAY_BEFORE) { 10546 positionAtCursorOffset(mPreviousOffsets[index], false); 10547 } 10548 } 10549 10550 public boolean offsetHasBeenChanged() { 10551 return mNumberPreviousOffsets > 1; 10552 } 10553 10554 @Override 10555 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 10556 setMeasuredDimension(mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight()); 10557 } 10558 10559 public void show() { 10560 if (isShowing()) return; 10561 10562 getPositionListener().addSubscriber(this, true /* local position may change */); 10563 10564 // Make sure the offset is always considered new, even when focusing at same position 10565 mPreviousOffset = -1; 10566 positionAtCursorOffset(getCurrentCursorOffset(), false); 10567 10568 hideActionPopupWindow(); 10569 } 10570 10571 protected void dismiss() { 10572 mIsDragging = false; 10573 mContainer.dismiss(); 10574 onDetached(); 10575 } 10576 10577 public void hide() { 10578 dismiss(); 10579 10580 TextView.this.getPositionListener().removeSubscriber(this); 10581 } 10582 10583 void showActionPopupWindow(int delay) { 10584 if (mActionPopupWindow == null) { 10585 mActionPopupWindow = new ActionPopupWindow(); 10586 } 10587 if (mActionPopupShower == null) { 10588 mActionPopupShower = new Runnable() { 10589 public void run() { 10590 mActionPopupWindow.show(); 10591 } 10592 }; 10593 } else { 10594 TextView.this.removeCallbacks(mActionPopupShower); 10595 } 10596 TextView.this.postDelayed(mActionPopupShower, delay); 10597 } 10598 10599 protected void hideActionPopupWindow() { 10600 if (mActionPopupShower != null) { 10601 TextView.this.removeCallbacks(mActionPopupShower); 10602 } 10603 if (mActionPopupWindow != null) { 10604 mActionPopupWindow.hide(); 10605 } 10606 } 10607 10608 public boolean isShowing() { 10609 return mContainer.isShowing(); 10610 } 10611 10612 private boolean isVisible() { 10613 // Always show a dragging handle. 10614 if (mIsDragging) { 10615 return true; 10616 } 10617 10618 if (isInBatchEditMode()) { 10619 return false; 10620 } 10621 10622 return getPositionListener().isVisible(mPositionX + mHotspotX, mPositionY); 10623 } 10624 10625 public abstract int getCurrentCursorOffset(); 10626 10627 protected abstract void updateSelection(int offset); 10628 10629 public abstract void updatePosition(float x, float y); 10630 10631 protected void positionAtCursorOffset(int offset, boolean parentScrolled) { 10632 // A HandleView relies on the layout, which may be nulled by external methods 10633 if (mLayout == null) { 10634 // Will update controllers' state, hiding them and stopping selection mode if needed 10635 prepareCursorControllers(); 10636 return; 10637 } 10638 10639 if (offset != mPreviousOffset || parentScrolled) { 10640 updateSelection(offset); 10641 addPositionToTouchUpFilter(offset); 10642 final int line = mLayout.getLineForOffset(offset); 10643 10644 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX); 10645 mPositionY = mLayout.getLineBottom(line); 10646 10647 // Take TextView's padding and scroll into account. 10648 mPositionX += viewportToContentHorizontalOffset(); 10649 mPositionY += viewportToContentVerticalOffset(); 10650 10651 mPreviousOffset = offset; 10652 mPositionHasChanged = true; 10653 } 10654 } 10655 10656 public void updatePosition(int parentPositionX, int parentPositionY, 10657 boolean parentPositionChanged, boolean parentScrolled) { 10658 positionAtCursorOffset(getCurrentCursorOffset(), parentScrolled); 10659 if (parentPositionChanged || mPositionHasChanged) { 10660 if (mIsDragging) { 10661 // Update touchToWindow offset in case of parent scrolling while dragging 10662 if (parentPositionX != mLastParentX || parentPositionY != mLastParentY) { 10663 mTouchToWindowOffsetX += parentPositionX - mLastParentX; 10664 mTouchToWindowOffsetY += parentPositionY - mLastParentY; 10665 mLastParentX = parentPositionX; 10666 mLastParentY = parentPositionY; 10667 } 10668 10669 onHandleMoved(); 10670 } 10671 10672 if (isVisible()) { 10673 final int positionX = parentPositionX + mPositionX; 10674 final int positionY = parentPositionY + mPositionY; 10675 if (isShowing()) { 10676 mContainer.update(positionX, positionY, -1, -1); 10677 } else { 10678 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, 10679 positionX, positionY); 10680 } 10681 } else { 10682 if (isShowing()) { 10683 dismiss(); 10684 } 10685 } 10686 10687 mPositionHasChanged = false; 10688 } 10689 } 10690 10691 @Override 10692 protected void onDraw(Canvas c) { 10693 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 10694 mDrawable.draw(c); 10695 } 10696 10697 @Override 10698 public boolean onTouchEvent(MotionEvent ev) { 10699 switch (ev.getActionMasked()) { 10700 case MotionEvent.ACTION_DOWN: { 10701 startTouchUpFilter(getCurrentCursorOffset()); 10702 mTouchToWindowOffsetX = ev.getRawX() - mPositionX; 10703 mTouchToWindowOffsetY = ev.getRawY() - mPositionY; 10704 10705 final PositionListener positionListener = getPositionListener(); 10706 mLastParentX = positionListener.getPositionX(); 10707 mLastParentY = positionListener.getPositionY(); 10708 mIsDragging = true; 10709 break; 10710 } 10711 10712 case MotionEvent.ACTION_MOVE: { 10713 final float rawX = ev.getRawX(); 10714 final float rawY = ev.getRawY(); 10715 10716 // Vertical hysteresis: vertical down movement tends to snap to ideal offset 10717 final float previousVerticalOffset = mTouchToWindowOffsetY - mLastParentY; 10718 final float currentVerticalOffset = rawY - mPositionY - mLastParentY; 10719 float newVerticalOffset; 10720 if (previousVerticalOffset < mIdealVerticalOffset) { 10721 newVerticalOffset = Math.min(currentVerticalOffset, mIdealVerticalOffset); 10722 newVerticalOffset = Math.max(newVerticalOffset, previousVerticalOffset); 10723 } else { 10724 newVerticalOffset = Math.max(currentVerticalOffset, mIdealVerticalOffset); 10725 newVerticalOffset = Math.min(newVerticalOffset, previousVerticalOffset); 10726 } 10727 mTouchToWindowOffsetY = newVerticalOffset + mLastParentY; 10728 10729 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 10730 final float newPosY = rawY - mTouchToWindowOffsetY + mTouchOffsetY; 10731 10732 updatePosition(newPosX, newPosY); 10733 break; 10734 } 10735 10736 case MotionEvent.ACTION_UP: 10737 filterOnTouchUp(); 10738 mIsDragging = false; 10739 break; 10740 10741 case MotionEvent.ACTION_CANCEL: 10742 mIsDragging = false; 10743 break; 10744 } 10745 return true; 10746 } 10747 10748 public boolean isDragging() { 10749 return mIsDragging; 10750 } 10751 10752 void onHandleMoved() { 10753 hideActionPopupWindow(); 10754 } 10755 10756 public void onDetached() { 10757 hideActionPopupWindow(); 10758 } 10759 } 10760 10761 private class InsertionHandleView extends HandleView { 10762 private static final int DELAY_BEFORE_HANDLE_FADES_OUT = 4000; 10763 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds 10764 10765 // Used to detect taps on the insertion handle, which will affect the ActionPopupWindow 10766 private float mDownPositionX, mDownPositionY; 10767 private Runnable mHider; 10768 10769 public InsertionHandleView(Drawable drawable) { 10770 super(drawable, drawable); 10771 } 10772 10773 @Override 10774 public void show() { 10775 super.show(); 10776 10777 final long durationSinceCutOrCopy = SystemClock.uptimeMillis() - sLastCutOrCopyTime; 10778 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 10779 showActionPopupWindow(0); 10780 } 10781 10782 hideAfterDelay(); 10783 } 10784 10785 public void showWithActionPopup() { 10786 show(); 10787 showActionPopupWindow(0); 10788 } 10789 10790 private void hideAfterDelay() { 10791 removeHiderCallback(); 10792 if (mHider == null) { 10793 mHider = new Runnable() { 10794 public void run() { 10795 hide(); 10796 } 10797 }; 10798 } 10799 TextView.this.postDelayed(mHider, DELAY_BEFORE_HANDLE_FADES_OUT); 10800 } 10801 10802 private void removeHiderCallback() { 10803 if (mHider != null) { 10804 TextView.this.removeCallbacks(mHider); 10805 } 10806 } 10807 10808 @Override 10809 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10810 return drawable.getIntrinsicWidth() / 2; 10811 } 10812 10813 @Override 10814 public boolean onTouchEvent(MotionEvent ev) { 10815 final boolean result = super.onTouchEvent(ev); 10816 10817 switch (ev.getActionMasked()) { 10818 case MotionEvent.ACTION_DOWN: 10819 mDownPositionX = ev.getRawX(); 10820 mDownPositionY = ev.getRawY(); 10821 break; 10822 10823 case MotionEvent.ACTION_UP: 10824 if (!offsetHasBeenChanged()) { 10825 final float deltaX = mDownPositionX - ev.getRawX(); 10826 final float deltaY = mDownPositionY - ev.getRawY(); 10827 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 10828 if (distanceSquared < mSquaredTouchSlopDistance) { 10829 if (mActionPopupWindow != null && mActionPopupWindow.isShowing()) { 10830 // Tapping on the handle dismisses the displayed action popup 10831 mActionPopupWindow.hide(); 10832 } else { 10833 showWithActionPopup(); 10834 } 10835 } 10836 } 10837 hideAfterDelay(); 10838 break; 10839 10840 case MotionEvent.ACTION_CANCEL: 10841 hideAfterDelay(); 10842 break; 10843 10844 default: 10845 break; 10846 } 10847 10848 return result; 10849 } 10850 10851 @Override 10852 public int getCurrentCursorOffset() { 10853 return TextView.this.getSelectionStart(); 10854 } 10855 10856 @Override 10857 public void updateSelection(int offset) { 10858 Selection.setSelection((Spannable) mText, offset); 10859 } 10860 10861 @Override 10862 public void updatePosition(float x, float y) { 10863 positionAtCursorOffset(getOffsetForPosition(x, y), false); 10864 } 10865 10866 @Override 10867 void onHandleMoved() { 10868 super.onHandleMoved(); 10869 removeHiderCallback(); 10870 } 10871 10872 @Override 10873 public void onDetached() { 10874 super.onDetached(); 10875 removeHiderCallback(); 10876 } 10877 } 10878 10879 private class SelectionStartHandleView extends HandleView { 10880 10881 public SelectionStartHandleView(Drawable drawableLtr, Drawable drawableRtl) { 10882 super(drawableLtr, drawableRtl); 10883 } 10884 10885 @Override 10886 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10887 if (isRtlRun) { 10888 return drawable.getIntrinsicWidth() / 4; 10889 } else { 10890 return (drawable.getIntrinsicWidth() * 3) / 4; 10891 } 10892 } 10893 10894 @Override 10895 public int getCurrentCursorOffset() { 10896 return TextView.this.getSelectionStart(); 10897 } 10898 10899 @Override 10900 public void updateSelection(int offset) { 10901 Selection.setSelection((Spannable) mText, offset, getSelectionEnd()); 10902 updateDrawable(); 10903 } 10904 10905 @Override 10906 public void updatePosition(float x, float y) { 10907 int offset = getOffsetForPosition(x, y); 10908 10909 // Handles can not cross and selection is at least one character 10910 final int selectionEnd = getSelectionEnd(); 10911 if (offset >= selectionEnd) offset = selectionEnd - 1; 10912 10913 positionAtCursorOffset(offset, false); 10914 } 10915 10916 public ActionPopupWindow getActionPopupWindow() { 10917 return mActionPopupWindow; 10918 } 10919 } 10920 10921 private class SelectionEndHandleView extends HandleView { 10922 10923 public SelectionEndHandleView(Drawable drawableLtr, Drawable drawableRtl) { 10924 super(drawableLtr, drawableRtl); 10925 } 10926 10927 @Override 10928 protected int getHotspotX(Drawable drawable, boolean isRtlRun) { 10929 if (isRtlRun) { 10930 return (drawable.getIntrinsicWidth() * 3) / 4; 10931 } else { 10932 return drawable.getIntrinsicWidth() / 4; 10933 } 10934 } 10935 10936 @Override 10937 public int getCurrentCursorOffset() { 10938 return TextView.this.getSelectionEnd(); 10939 } 10940 10941 @Override 10942 public void updateSelection(int offset) { 10943 Selection.setSelection((Spannable) mText, getSelectionStart(), offset); 10944 updateDrawable(); 10945 } 10946 10947 @Override 10948 public void updatePosition(float x, float y) { 10949 int offset = getOffsetForPosition(x, y); 10950 10951 // Handles can not cross and selection is at least one character 10952 final int selectionStart = getSelectionStart(); 10953 if (offset <= selectionStart) offset = selectionStart + 1; 10954 10955 positionAtCursorOffset(offset, false); 10956 } 10957 10958 public void setActionPopupWindow(ActionPopupWindow actionPopupWindow) { 10959 mActionPopupWindow = actionPopupWindow; 10960 } 10961 } 10962 10963 /** 10964 * A CursorController instance can be used to control a cursor in the text. 10965 * It is not used outside of {@link TextView}. 10966 * @hide 10967 */ 10968 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 10969 /** 10970 * Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}. 10971 * See also {@link #hide()}. 10972 */ 10973 public void show(); 10974 10975 /** 10976 * Hide the cursor controller from screen. 10977 * See also {@link #show()}. 10978 */ 10979 public void hide(); 10980 10981 /** 10982 * Called when the view is detached from window. Perform house keeping task, such as 10983 * stopping Runnable thread that would otherwise keep a reference on the context, thus 10984 * preventing the activity from being recycled. 10985 */ 10986 public void onDetached(); 10987 } 10988 10989 private class InsertionPointCursorController implements CursorController { 10990 private InsertionHandleView mHandle; 10991 10992 public void show() { 10993 getHandle().show(); 10994 } 10995 10996 public void showWithActionPopup() { 10997 getHandle().showWithActionPopup(); 10998 } 10999 11000 public void hide() { 11001 if (mHandle != null) { 11002 mHandle.hide(); 11003 } 11004 } 11005 11006 public void onTouchModeChanged(boolean isInTouchMode) { 11007 if (!isInTouchMode) { 11008 hide(); 11009 } 11010 } 11011 11012 private InsertionHandleView getHandle() { 11013 if (mSelectHandleCenter == null) { 11014 mSelectHandleCenter = mContext.getResources().getDrawable( 11015 mTextSelectHandleRes); 11016 } 11017 if (mHandle == null) { 11018 mHandle = new InsertionHandleView(mSelectHandleCenter); 11019 } 11020 return mHandle; 11021 } 11022 11023 @Override 11024 public void onDetached() { 11025 final ViewTreeObserver observer = getViewTreeObserver(); 11026 observer.removeOnTouchModeChangeListener(this); 11027 11028 if (mHandle != null) mHandle.onDetached(); 11029 } 11030 } 11031 11032 private class SelectionModifierCursorController implements CursorController { 11033 private static final int DELAY_BEFORE_REPLACE_ACTION = 200; // milliseconds 11034 // The cursor controller handles, lazily created when shown. 11035 private SelectionStartHandleView mStartHandle; 11036 private SelectionEndHandleView mEndHandle; 11037 // The offsets of that last touch down event. Remembered to start selection there. 11038 private int mMinTouchOffset, mMaxTouchOffset; 11039 11040 // Double tap detection 11041 private long mPreviousTapUpTime = 0; 11042 private float mPreviousTapPositionX, mPreviousTapPositionY; 11043 11044 SelectionModifierCursorController() { 11045 resetTouchOffsets(); 11046 } 11047 11048 public void show() { 11049 if (isInBatchEditMode()) { 11050 return; 11051 } 11052 initDrawables(); 11053 initHandles(); 11054 hideInsertionPointCursorController(); 11055 } 11056 11057 private void initDrawables() { 11058 if (mSelectHandleLeft == null) { 11059 mSelectHandleLeft = mContext.getResources().getDrawable( 11060 mTextSelectHandleLeftRes); 11061 } 11062 if (mSelectHandleRight == null) { 11063 mSelectHandleRight = mContext.getResources().getDrawable( 11064 mTextSelectHandleRightRes); 11065 } 11066 } 11067 11068 private void initHandles() { 11069 // Lazy object creation has to be done before updatePosition() is called. 11070 if (mStartHandle == null) { 11071 mStartHandle = new SelectionStartHandleView(mSelectHandleLeft, mSelectHandleRight); 11072 } 11073 if (mEndHandle == null) { 11074 mEndHandle = new SelectionEndHandleView(mSelectHandleRight, mSelectHandleLeft); 11075 } 11076 11077 mStartHandle.show(); 11078 mEndHandle.show(); 11079 11080 // Make sure both left and right handles share the same ActionPopupWindow (so that 11081 // moving any of the handles hides the action popup). 11082 mStartHandle.showActionPopupWindow(DELAY_BEFORE_REPLACE_ACTION); 11083 mEndHandle.setActionPopupWindow(mStartHandle.getActionPopupWindow()); 11084 11085 hideInsertionPointCursorController(); 11086 } 11087 11088 public void hide() { 11089 if (mStartHandle != null) mStartHandle.hide(); 11090 if (mEndHandle != null) mEndHandle.hide(); 11091 } 11092 11093 public void onTouchEvent(MotionEvent event) { 11094 // This is done even when the View does not have focus, so that long presses can start 11095 // selection and tap can move cursor from this tap position. 11096 switch (event.getActionMasked()) { 11097 case MotionEvent.ACTION_DOWN: 11098 final float x = event.getX(); 11099 final float y = event.getY(); 11100 11101 // Remember finger down position, to be able to start selection from there 11102 mMinTouchOffset = mMaxTouchOffset = getOffsetForPosition(x, y); 11103 11104 // Double tap detection 11105 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 11106 if (duration <= ViewConfiguration.getDoubleTapTimeout() && 11107 isPositionOnText(x, y)) { 11108 final float deltaX = x - mPreviousTapPositionX; 11109 final float deltaY = y - mPreviousTapPositionY; 11110 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 11111 if (distanceSquared < mSquaredTouchSlopDistance) { 11112 startSelectionActionMode(); 11113 mDiscardNextActionUp = true; 11114 } 11115 } 11116 11117 mPreviousTapPositionX = x; 11118 mPreviousTapPositionY = y; 11119 break; 11120 11121 case MotionEvent.ACTION_POINTER_DOWN: 11122 case MotionEvent.ACTION_POINTER_UP: 11123 // Handle multi-point gestures. Keep min and max offset positions. 11124 // Only activated for devices that correctly handle multi-touch. 11125 if (mContext.getPackageManager().hasSystemFeature( 11126 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 11127 updateMinAndMaxOffsets(event); 11128 } 11129 break; 11130 11131 case MotionEvent.ACTION_UP: 11132 mPreviousTapUpTime = SystemClock.uptimeMillis(); 11133 break; 11134 } 11135 } 11136 11137 /** 11138 * @param event 11139 */ 11140 private void updateMinAndMaxOffsets(MotionEvent event) { 11141 int pointerCount = event.getPointerCount(); 11142 for (int index = 0; index < pointerCount; index++) { 11143 int offset = getOffsetForPosition(event.getX(index), event.getY(index)); 11144 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 11145 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 11146 } 11147 } 11148 11149 public int getMinTouchOffset() { 11150 return mMinTouchOffset; 11151 } 11152 11153 public int getMaxTouchOffset() { 11154 return mMaxTouchOffset; 11155 } 11156 11157 public void resetTouchOffsets() { 11158 mMinTouchOffset = mMaxTouchOffset = -1; 11159 } 11160 11161 /** 11162 * @return true iff this controller is currently used to move the selection start. 11163 */ 11164 public boolean isSelectionStartDragged() { 11165 return mStartHandle != null && mStartHandle.isDragging(); 11166 } 11167 11168 public void onTouchModeChanged(boolean isInTouchMode) { 11169 if (!isInTouchMode) { 11170 hide(); 11171 } 11172 } 11173 11174 @Override 11175 public void onDetached() { 11176 final ViewTreeObserver observer = getViewTreeObserver(); 11177 observer.removeOnTouchModeChangeListener(this); 11178 11179 if (mStartHandle != null) mStartHandle.onDetached(); 11180 if (mEndHandle != null) mEndHandle.onDetached(); 11181 } 11182 } 11183 11184 private void hideInsertionPointCursorController() { 11185 // No need to create the controller to hide it. 11186 if (mInsertionPointCursorController != null) { 11187 mInsertionPointCursorController.hide(); 11188 } 11189 } 11190 11191 /** 11192 * Hides the insertion controller and stops text selection mode, hiding the selection controller 11193 */ 11194 private void hideControllers() { 11195 hideCursorControllers(); 11196 hideSpanControllers(); 11197 } 11198 11199 private void hideSpanControllers() { 11200 if (mChangeWatcher != null) { 11201 mChangeWatcher.hideControllers(); 11202 } 11203 } 11204 11205 private void hideCursorControllers() { 11206 if (mSuggestionsPopupWindow != null && !mSuggestionsPopupWindow.isShowingUp()) { 11207 // Should be done before hide insertion point controller since it triggers a show of it 11208 mSuggestionsPopupWindow.hide(); 11209 } 11210 hideInsertionPointCursorController(); 11211 stopSelectionActionMode(); 11212 } 11213 11214 /** 11215 * Get the character offset closest to the specified absolute position. A typical use case is to 11216 * pass the result of {@link MotionEvent#getX()} and {@link MotionEvent#getY()} to this method. 11217 * 11218 * @param x The horizontal absolute position of a point on screen 11219 * @param y The vertical absolute position of a point on screen 11220 * @return the character offset for the character whose position is closest to the specified 11221 * position. Returns -1 if there is no layout. 11222 */ 11223 public int getOffsetForPosition(float x, float y) { 11224 if (getLayout() == null) return -1; 11225 final int line = getLineAtCoordinate(y); 11226 final int offset = getOffsetAtCoordinate(line, x); 11227 return offset; 11228 } 11229 11230 private float convertToLocalHorizontalCoordinate(float x) { 11231 x -= getTotalPaddingLeft(); 11232 // Clamp the position to inside of the view. 11233 x = Math.max(0.0f, x); 11234 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 11235 x += getScrollX(); 11236 return x; 11237 } 11238 11239 private int getLineAtCoordinate(float y) { 11240 y -= getTotalPaddingTop(); 11241 // Clamp the position to inside of the view. 11242 y = Math.max(0.0f, y); 11243 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 11244 y += getScrollY(); 11245 return getLayout().getLineForVertical((int) y); 11246 } 11247 11248 private int getOffsetAtCoordinate(int line, float x) { 11249 x = convertToLocalHorizontalCoordinate(x); 11250 return getLayout().getOffsetForHorizontal(line, x); 11251 } 11252 11253 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 11254 * in the view. Returns false when the position is in the empty space of left/right of text. 11255 */ 11256 private boolean isPositionOnText(float x, float y) { 11257 if (getLayout() == null) return false; 11258 11259 final int line = getLineAtCoordinate(y); 11260 x = convertToLocalHorizontalCoordinate(x); 11261 11262 if (x < getLayout().getLineLeft(line)) return false; 11263 if (x > getLayout().getLineRight(line)) return false; 11264 return true; 11265 } 11266 11267 @Override 11268 public boolean onDragEvent(DragEvent event) { 11269 switch (event.getAction()) { 11270 case DragEvent.ACTION_DRAG_STARTED: 11271 return hasInsertionController(); 11272 11273 case DragEvent.ACTION_DRAG_ENTERED: 11274 TextView.this.requestFocus(); 11275 return true; 11276 11277 case DragEvent.ACTION_DRAG_LOCATION: 11278 final int offset = getOffsetForPosition(event.getX(), event.getY()); 11279 Selection.setSelection((Spannable)mText, offset); 11280 return true; 11281 11282 case DragEvent.ACTION_DROP: 11283 onDrop(event); 11284 return true; 11285 11286 case DragEvent.ACTION_DRAG_ENDED: 11287 case DragEvent.ACTION_DRAG_EXITED: 11288 default: 11289 return true; 11290 } 11291 } 11292 11293 private void onDrop(DragEvent event) { 11294 StringBuilder content = new StringBuilder(""); 11295 ClipData clipData = event.getClipData(); 11296 final int itemCount = clipData.getItemCount(); 11297 for (int i=0; i < itemCount; i++) { 11298 Item item = clipData.getItemAt(i); 11299 content.append(item.coerceToText(TextView.this.mContext)); 11300 } 11301 11302 final int offset = getOffsetForPosition(event.getX(), event.getY()); 11303 11304 Object localState = event.getLocalState(); 11305 DragLocalState dragLocalState = null; 11306 if (localState instanceof DragLocalState) { 11307 dragLocalState = (DragLocalState) localState; 11308 } 11309 boolean dragDropIntoItself = dragLocalState != null && 11310 dragLocalState.sourceTextView == this; 11311 11312 if (dragDropIntoItself) { 11313 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 11314 // A drop inside the original selection discards the drop. 11315 return; 11316 } 11317 } 11318 11319 final int originalLength = mText.length(); 11320 long minMax = prepareSpacesAroundPaste(offset, offset, content); 11321 int min = extractRangeStartFromLong(minMax); 11322 int max = extractRangeEndFromLong(minMax); 11323 11324 Selection.setSelection((Spannable) mText, max); 11325 ((Editable) mText).replace(min, max, content); 11326 11327 if (dragDropIntoItself) { 11328 int dragSourceStart = dragLocalState.start; 11329 int dragSourceEnd = dragLocalState.end; 11330 if (max <= dragSourceStart) { 11331 // Inserting text before selection has shifted positions 11332 final int shift = mText.length() - originalLength; 11333 dragSourceStart += shift; 11334 dragSourceEnd += shift; 11335 } 11336 11337 // Delete original selection 11338 ((Editable) mText).delete(dragSourceStart, dragSourceEnd); 11339 11340 // Make sure we do not leave two adjacent spaces. 11341 if ((dragSourceStart == 0 || 11342 Character.isSpaceChar(mTransformed.charAt(dragSourceStart - 1))) && 11343 (dragSourceStart == mText.length() || 11344 Character.isSpaceChar(mTransformed.charAt(dragSourceStart)))) { 11345 final int pos = dragSourceStart == mText.length() ? 11346 dragSourceStart - 1 : dragSourceStart; 11347 ((Editable) mText).delete(pos, pos + 1); 11348 } 11349 } 11350 } 11351 11352 /** 11353 * @return True if this view supports insertion handles. 11354 */ 11355 boolean hasInsertionController() { 11356 return mInsertionControllerEnabled; 11357 } 11358 11359 /** 11360 * @return True if this view supports selection handles. 11361 */ 11362 boolean hasSelectionController() { 11363 return mSelectionControllerEnabled; 11364 } 11365 11366 InsertionPointCursorController getInsertionController() { 11367 if (!mInsertionControllerEnabled) { 11368 return null; 11369 } 11370 11371 if (mInsertionPointCursorController == null) { 11372 mInsertionPointCursorController = new InsertionPointCursorController(); 11373 11374 final ViewTreeObserver observer = getViewTreeObserver(); 11375 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 11376 } 11377 11378 return mInsertionPointCursorController; 11379 } 11380 11381 SelectionModifierCursorController getSelectionController() { 11382 if (!mSelectionControllerEnabled) { 11383 return null; 11384 } 11385 11386 if (mSelectionModifierCursorController == null) { 11387 mSelectionModifierCursorController = new SelectionModifierCursorController(); 11388 11389 final ViewTreeObserver observer = getViewTreeObserver(); 11390 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 11391 } 11392 11393 return mSelectionModifierCursorController; 11394 } 11395 11396 boolean isInBatchEditMode() { 11397 final InputMethodState ims = mInputMethodState; 11398 if (ims != null) { 11399 return ims.mBatchEditNesting > 0; 11400 } 11401 return mInBatchEditControllers; 11402 } 11403 11404 @Override 11405 protected void resolveTextDirection() { 11406 if (hasPasswordTransformationMethod()) { 11407 mTextDir = TextDirectionHeuristics.LOCALE; 11408 return; 11409 } 11410 11411 // Always need to resolve layout direction first 11412 final boolean defaultIsRtl = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL); 11413 11414 // Then resolve text direction on the parent 11415 super.resolveTextDirection(); 11416 11417 // Now, we can select the heuristic 11418 int textDir = getResolvedTextDirection(); 11419 switch (textDir) { 11420 default: 11421 case TEXT_DIRECTION_FIRST_STRONG: 11422 mTextDir = (defaultIsRtl ? TextDirectionHeuristics.FIRSTSTRONG_RTL : 11423 TextDirectionHeuristics.FIRSTSTRONG_LTR); 11424 break; 11425 case TEXT_DIRECTION_ANY_RTL: 11426 mTextDir = TextDirectionHeuristics.ANYRTL_LTR; 11427 break; 11428 case TEXT_DIRECTION_LTR: 11429 mTextDir = TextDirectionHeuristics.LTR; 11430 break; 11431 case TEXT_DIRECTION_RTL: 11432 mTextDir = TextDirectionHeuristics.RTL; 11433 break; 11434 } 11435 } 11436 11437 /** 11438 * Subclasses will need to override this method to implement their own way of resolving 11439 * drawables depending on the layout direction. 11440 * 11441 * A call to the super method will be required from the subclasses implementation. 11442 * 11443 */ 11444 protected void resolveDrawables() { 11445 // No need to resolve twice 11446 if (mResolvedDrawables) { 11447 return; 11448 } 11449 // No drawable to resolve 11450 if (mDrawables == null) { 11451 return; 11452 } 11453 // No relative drawable to resolve 11454 if (mDrawables.mDrawableStart == null && mDrawables.mDrawableEnd == null) { 11455 mResolvedDrawables = true; 11456 return; 11457 } 11458 11459 Drawables dr = mDrawables; 11460 switch(getResolvedLayoutDirection()) { 11461 case LAYOUT_DIRECTION_RTL: 11462 if (dr.mDrawableStart != null) { 11463 dr.mDrawableRight = dr.mDrawableStart; 11464 11465 dr.mDrawableSizeRight = dr.mDrawableSizeStart; 11466 dr.mDrawableHeightRight = dr.mDrawableHeightStart; 11467 } 11468 if (dr.mDrawableEnd != null) { 11469 dr.mDrawableLeft = dr.mDrawableEnd; 11470 11471 dr.mDrawableSizeLeft = dr.mDrawableSizeEnd; 11472 dr.mDrawableHeightLeft = dr.mDrawableHeightEnd; 11473 } 11474 break; 11475 11476 case LAYOUT_DIRECTION_LTR: 11477 default: 11478 if (dr.mDrawableStart != null) { 11479 dr.mDrawableLeft = dr.mDrawableStart; 11480 11481 dr.mDrawableSizeLeft = dr.mDrawableSizeStart; 11482 dr.mDrawableHeightLeft = dr.mDrawableHeightStart; 11483 } 11484 if (dr.mDrawableEnd != null) { 11485 dr.mDrawableRight = dr.mDrawableEnd; 11486 11487 dr.mDrawableSizeRight = dr.mDrawableSizeEnd; 11488 dr.mDrawableHeightRight = dr.mDrawableHeightEnd; 11489 } 11490 break; 11491 } 11492 mResolvedDrawables = true; 11493 } 11494 11495 protected void resetResolvedDrawables() { 11496 mResolvedDrawables = false; 11497 } 11498 11499 /** 11500 * @hide 11501 */ 11502 protected void viewClicked(InputMethodManager imm) { 11503 if (imm != null) { 11504 imm.viewClicked(this); 11505 } 11506 } 11507 11508 @ViewDebug.ExportedProperty(category = "text") 11509 private CharSequence mText; 11510 private CharSequence mTransformed; 11511 private BufferType mBufferType = BufferType.NORMAL; 11512 11513 private int mInputType = EditorInfo.TYPE_NULL; 11514 private CharSequence mHint; 11515 private Layout mHintLayout; 11516 11517 private KeyListener mInput; 11518 11519 private MovementMethod mMovement; 11520 private TransformationMethod mTransformation; 11521 private boolean mAllowTransformationLengthChange; 11522 private ChangeWatcher mChangeWatcher; 11523 11524 private ArrayList<TextWatcher> mListeners = null; 11525 11526 // display attributes 11527 private final TextPaint mTextPaint; 11528 private boolean mUserSetTextScaleX; 11529 private final Paint mHighlightPaint; 11530 private int mHighlightColor = 0x6633B5E5; 11531 /** 11532 * This is temporarily visible to fix bug 3085564 in webView. Do not rely on 11533 * this field being protected. Will be restored as private when lineHeight 11534 * feature request 3215097 is implemented 11535 * @hide 11536 */ 11537 protected Layout mLayout; 11538 11539 private long mShowCursor; 11540 private Blink mBlink; 11541 private boolean mCursorVisible = true; 11542 11543 // Cursor Controllers. 11544 private InsertionPointCursorController mInsertionPointCursorController; 11545 private SelectionModifierCursorController mSelectionModifierCursorController; 11546 private ActionMode mSelectionActionMode; 11547 private boolean mInsertionControllerEnabled; 11548 private boolean mSelectionControllerEnabled; 11549 private boolean mInBatchEditControllers; 11550 11551 // These are needed to desambiguate a long click. If the long click comes from ones of these, we 11552 // select from the current cursor position. Otherwise, select from long pressed position. 11553 private boolean mDPadCenterIsDown = false; 11554 private boolean mEnterKeyIsDown = false; 11555 private boolean mContextMenuTriggeredByKey = false; 11556 11557 private boolean mSelectAllOnFocus = false; 11558 11559 private int mGravity = Gravity.TOP | Gravity.START; 11560 private boolean mHorizontallyScrolling; 11561 11562 private int mAutoLinkMask; 11563 private boolean mLinksClickable = true; 11564 11565 private float mSpacingMult = 1.0f; 11566 private float mSpacingAdd = 0.0f; 11567 private boolean mTextIsSelectable = false; 11568 11569 private static final int LINES = 1; 11570 private static final int EMS = LINES; 11571 private static final int PIXELS = 2; 11572 11573 private int mMaximum = Integer.MAX_VALUE; 11574 private int mMaxMode = LINES; 11575 private int mMinimum = 0; 11576 private int mMinMode = LINES; 11577 11578 private int mOldMaximum = mMaximum; 11579 private int mOldMaxMode = mMaxMode; 11580 11581 private int mMaxWidth = Integer.MAX_VALUE; 11582 private int mMaxWidthMode = PIXELS; 11583 private int mMinWidth = 0; 11584 private int mMinWidthMode = PIXELS; 11585 11586 private boolean mSingleLine; 11587 private int mDesiredHeightAtMeasure = -1; 11588 private boolean mIncludePad = true; 11589 11590 // tmp primitives, so we don't alloc them on each draw 11591 private Path mHighlightPath; 11592 private boolean mHighlightPathBogus = true; 11593 private static final RectF sTempRect = new RectF(); 11594 11595 // XXX should be much larger 11596 private static final int VERY_WIDE = 1024*1024; 11597 11598 private static final int BLINK = 500; 11599 11600 private static final int ANIMATED_SCROLL_GAP = 250; 11601 private long mLastScroll; 11602 private Scroller mScroller = null; 11603 11604 private BoringLayout.Metrics mBoring; 11605 private BoringLayout.Metrics mHintBoring; 11606 11607 private BoringLayout mSavedLayout, mSavedHintLayout; 11608 11609 private TextDirectionHeuristic mTextDir = null; 11610 11611 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 11612 private InputFilter[] mFilters = NO_FILTERS; 11613 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 11614 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 11615 // System wide time for last cut or copy action. 11616 private static long sLastCutOrCopyTime; 11617 // Used to highlight a word when it is corrected by the IME 11618 private CorrectionHighlighter mCorrectionHighlighter; 11619 // New state used to change background based on whether this TextView is multiline. 11620 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 11621} 11622