TextView.java revision a646145c335ba821f01d9e4f8be2583eb9fd7266
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.pm.PackageManager; 25import android.content.res.ColorStateList; 26import android.content.res.Resources; 27import android.content.res.TypedArray; 28import android.content.res.XmlResourceParser; 29import android.graphics.Canvas; 30import android.graphics.Color; 31import android.graphics.Paint; 32import android.graphics.Path; 33import android.graphics.Rect; 34import android.graphics.RectF; 35import android.graphics.Typeface; 36import android.graphics.drawable.Drawable; 37import android.inputmethodservice.ExtractEditText; 38import android.net.Uri; 39import android.os.Bundle; 40import android.os.Handler; 41import android.os.Message; 42import android.os.Parcel; 43import android.os.Parcelable; 44import android.os.SystemClock; 45import android.text.BoringLayout; 46import android.text.DynamicLayout; 47import android.text.Editable; 48import android.text.GetChars; 49import android.text.GraphicsOperations; 50import android.text.InputFilter; 51import android.text.InputType; 52import android.text.Layout; 53import android.text.ParcelableSpan; 54import android.text.Selection; 55import android.text.SpanWatcher; 56import android.text.Spannable; 57import android.text.SpannableString; 58import android.text.SpannableStringBuilder; 59import android.text.Spanned; 60import android.text.SpannedString; 61import android.text.StaticLayout; 62import android.text.TextDirectionHeuristic; 63import android.text.TextDirectionHeuristics; 64import android.text.TextDirectionHeuristics.AnyStrong; 65import android.text.TextDirectionHeuristics.CharCount; 66import android.text.TextDirectionHeuristics.FirstStrong; 67import android.text.TextDirectionHeuristics.TextDirectionAlgorithm; 68import android.text.TextDirectionHeuristics.TextDirectionHeuristicImpl; 69import android.text.TextPaint; 70import android.text.TextUtils; 71import android.text.TextWatcher; 72import android.text.method.AllCapsTransformationMethod; 73import android.text.method.ArrowKeyMovementMethod; 74import android.text.method.DateKeyListener; 75import android.text.method.DateTimeKeyListener; 76import android.text.method.DialerKeyListener; 77import android.text.method.DigitsKeyListener; 78import android.text.method.KeyListener; 79import android.text.method.LinkMovementMethod; 80import android.text.method.MetaKeyKeyListener; 81import android.text.method.MovementMethod; 82import android.text.method.PasswordTransformationMethod; 83import android.text.method.SingleLineTransformationMethod; 84import android.text.method.TextKeyListener; 85import android.text.method.TimeKeyListener; 86import android.text.method.TransformationMethod; 87import android.text.method.TransformationMethod2; 88import android.text.method.WordIterator; 89import android.text.style.ClickableSpan; 90import android.text.style.ParagraphStyle; 91import android.text.style.SuggestionSpan; 92import android.text.style.TextAppearanceSpan; 93import android.text.style.URLSpan; 94import android.text.style.UnderlineSpan; 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.widget.RemoteViews.RemoteView; 136 137import com.android.internal.util.FastMath; 138import com.android.internal.widget.EditableInputConnection; 139 140import org.xmlpull.v1.XmlPullParserException; 141 142import com.android.internal.util.FastMath; 143import com.android.internal.widget.EditableInputConnection; 144 145import org.xmlpull.v1.XmlPullParserException; 146 147import java.io.IOException; 148import java.lang.ref.WeakReference; 149import java.text.BreakIterator; 150import java.util.ArrayList; 151import java.util.Arrays; 152import java.util.Comparator; 153import java.util.HashMap; 154 155/** 156 * Displays text to the user and optionally allows them to edit it. A TextView 157 * is a complete text editor, however the basic class is configured to not 158 * allow editing; see {@link EditText} for a subclass that configures the text 159 * view for editing. 160 * 161 * <p> 162 * <b>XML attributes</b> 163 * <p> 164 * See {@link android.R.styleable#TextView TextView Attributes}, 165 * {@link android.R.styleable#View View Attributes} 166 * 167 * @attr ref android.R.styleable#TextView_text 168 * @attr ref android.R.styleable#TextView_bufferType 169 * @attr ref android.R.styleable#TextView_hint 170 * @attr ref android.R.styleable#TextView_textColor 171 * @attr ref android.R.styleable#TextView_textColorHighlight 172 * @attr ref android.R.styleable#TextView_textColorHint 173 * @attr ref android.R.styleable#TextView_textAppearance 174 * @attr ref android.R.styleable#TextView_textColorLink 175 * @attr ref android.R.styleable#TextView_textSize 176 * @attr ref android.R.styleable#TextView_textScaleX 177 * @attr ref android.R.styleable#TextView_typeface 178 * @attr ref android.R.styleable#TextView_textStyle 179 * @attr ref android.R.styleable#TextView_cursorVisible 180 * @attr ref android.R.styleable#TextView_maxLines 181 * @attr ref android.R.styleable#TextView_maxHeight 182 * @attr ref android.R.styleable#TextView_lines 183 * @attr ref android.R.styleable#TextView_height 184 * @attr ref android.R.styleable#TextView_minLines 185 * @attr ref android.R.styleable#TextView_minHeight 186 * @attr ref android.R.styleable#TextView_maxEms 187 * @attr ref android.R.styleable#TextView_maxWidth 188 * @attr ref android.R.styleable#TextView_ems 189 * @attr ref android.R.styleable#TextView_width 190 * @attr ref android.R.styleable#TextView_minEms 191 * @attr ref android.R.styleable#TextView_minWidth 192 * @attr ref android.R.styleable#TextView_gravity 193 * @attr ref android.R.styleable#TextView_scrollHorizontally 194 * @attr ref android.R.styleable#TextView_password 195 * @attr ref android.R.styleable#TextView_singleLine 196 * @attr ref android.R.styleable#TextView_selectAllOnFocus 197 * @attr ref android.R.styleable#TextView_includeFontPadding 198 * @attr ref android.R.styleable#TextView_maxLength 199 * @attr ref android.R.styleable#TextView_shadowColor 200 * @attr ref android.R.styleable#TextView_shadowDx 201 * @attr ref android.R.styleable#TextView_shadowDy 202 * @attr ref android.R.styleable#TextView_shadowRadius 203 * @attr ref android.R.styleable#TextView_autoLink 204 * @attr ref android.R.styleable#TextView_linksClickable 205 * @attr ref android.R.styleable#TextView_numeric 206 * @attr ref android.R.styleable#TextView_digits 207 * @attr ref android.R.styleable#TextView_phoneNumber 208 * @attr ref android.R.styleable#TextView_inputMethod 209 * @attr ref android.R.styleable#TextView_capitalize 210 * @attr ref android.R.styleable#TextView_autoText 211 * @attr ref android.R.styleable#TextView_editable 212 * @attr ref android.R.styleable#TextView_freezesText 213 * @attr ref android.R.styleable#TextView_ellipsize 214 * @attr ref android.R.styleable#TextView_drawableTop 215 * @attr ref android.R.styleable#TextView_drawableBottom 216 * @attr ref android.R.styleable#TextView_drawableRight 217 * @attr ref android.R.styleable#TextView_drawableLeft 218 * @attr ref android.R.styleable#TextView_drawablePadding 219 * @attr ref android.R.styleable#TextView_lineSpacingExtra 220 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 221 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 222 * @attr ref android.R.styleable#TextView_inputType 223 * @attr ref android.R.styleable#TextView_imeOptions 224 * @attr ref android.R.styleable#TextView_privateImeOptions 225 * @attr ref android.R.styleable#TextView_imeActionLabel 226 * @attr ref android.R.styleable#TextView_imeActionId 227 * @attr ref android.R.styleable#TextView_editorExtras 228 * @attr ref android.R.styleable#TextView_suggestionsEnabled 229 */ 230@RemoteView 231public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 232 static final String LOG_TAG = "TextView"; 233 static final boolean DEBUG_EXTRACT = false; 234 235 private static final int PRIORITY = 100; 236 private int mCurrentAlpha = 255; 237 238 final int[] mTempCoords = new int[2]; 239 Rect mTempRect; 240 241 private ColorStateList mTextColor; 242 private int mCurTextColor; 243 private ColorStateList mHintTextColor; 244 private ColorStateList mLinkTextColor; 245 private int mCurHintTextColor; 246 private boolean mFreezesText; 247 private boolean mFrozenWithFocus; 248 private boolean mTemporaryDetach; 249 private boolean mDispatchTemporaryDetach; 250 251 private boolean mDiscardNextActionUp = false; 252 private boolean mIgnoreActionUpEvent = false; 253 254 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 255 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 256 257 private float mShadowRadius, mShadowDx, mShadowDy; 258 259 private static final int PREDRAW_NOT_REGISTERED = 0; 260 private static final int PREDRAW_PENDING = 1; 261 private static final int PREDRAW_DONE = 2; 262 private int mPreDrawState = PREDRAW_NOT_REGISTERED; 263 264 private TextUtils.TruncateAt mEllipsize = null; 265 266 // Enum for the "typeface" XML parameter. 267 // TODO: How can we get this from the XML instead of hardcoding it here? 268 private static final int SANS = 1; 269 private static final int SERIF = 2; 270 private static final int MONOSPACE = 3; 271 272 // Bitfield for the "numeric" XML parameter. 273 // TODO: How can we get this from the XML instead of hardcoding it here? 274 private static final int SIGNED = 2; 275 private static final int DECIMAL = 4; 276 277 class Drawables { 278 final Rect mCompoundRect = new Rect(); 279 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight, 280 mDrawableStart, mDrawableEnd; 281 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight, 282 mDrawableSizeStart, mDrawableSizeEnd; 283 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight, 284 mDrawableHeightStart, mDrawableHeightEnd; 285 int mDrawablePadding; 286 } 287 private Drawables mDrawables; 288 289 private CharSequence mError; 290 private boolean mErrorWasChanged; 291 private ErrorPopup mPopup; 292 /** 293 * This flag is set if the TextView tries to display an error before it 294 * is attached to the window (so its position is still unknown). 295 * It causes the error to be shown later, when onAttachedToWindow() 296 * is called. 297 */ 298 private boolean mShowErrorAfterAttach; 299 300 private CharWrapper mCharWrapper = null; 301 302 private boolean mSelectionMoved = false; 303 private boolean mTouchFocusSelected = false; 304 305 private Marquee mMarquee; 306 private boolean mRestartMarquee; 307 308 private int mMarqueeRepeatLimit = 3; 309 310 class InputContentType { 311 int imeOptions = EditorInfo.IME_NULL; 312 String privateImeOptions; 313 CharSequence imeActionLabel; 314 int imeActionId; 315 Bundle extras; 316 OnEditorActionListener onEditorActionListener; 317 boolean enterDown; 318 } 319 InputContentType mInputContentType; 320 321 class InputMethodState { 322 Rect mCursorRectInWindow = new Rect(); 323 RectF mTmpRectF = new RectF(); 324 float[] mTmpOffset = new float[2]; 325 ExtractedTextRequest mExtracting; 326 final ExtractedText mTmpExtracted = new ExtractedText(); 327 int mBatchEditNesting; 328 boolean mCursorChanged; 329 boolean mSelectionModeChanged; 330 boolean mContentChanged; 331 int mChangedStart, mChangedEnd, mChangedDelta; 332 } 333 InputMethodState mInputMethodState; 334 335 private int mTextSelectHandleLeftRes; 336 private int mTextSelectHandleRightRes; 337 private int mTextSelectHandleRes; 338 339 private int mTextEditSuggestionItemLayout; 340 private SuggestionsPopupWindow mSuggestionsPopupWindow; 341 private SuggestionRangeSpan mSuggestionRangeSpan; 342 private boolean mSuggestionsEnabled = true; 343 344 private int mCursorDrawableRes; 345 private final Drawable[] mCursorDrawable = new Drawable[2]; 346 private int mCursorCount; // Actual current number of used mCursorDrawable: 0, 1 or 2 347 348 private Drawable mSelectHandleLeft; 349 private Drawable mSelectHandleRight; 350 private Drawable mSelectHandleCenter; 351 352 // Global listener that detects changes in the global position of the TextView 353 private PositionListener mPositionListener; 354 355 private float mLastDownPositionX, mLastDownPositionY; 356 private Callback mCustomSelectionActionModeCallback; 357 358 private final int mSquaredTouchSlopDistance; 359 // Set when this TextView gained focus with some text selected. Will start selection mode. 360 private boolean mCreatedWithASelection = false; 361 362 private WordIterator mWordIterator; 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 * Kick-start the font cache for the zygote process (to pay the cost of 378 * initializing freetype for our default font only once). 379 */ 380 static { 381 Paint p = new Paint(); 382 p.setAntiAlias(true); 383 // We don't care about the result, just the side-effect of measuring. 384 p.measureText("H"); 385 } 386 387 /** 388 * Interface definition for a callback to be invoked when an action is 389 * performed on the editor. 390 */ 391 public interface OnEditorActionListener { 392 /** 393 * Called when an action is being performed. 394 * 395 * @param v The view that was clicked. 396 * @param actionId Identifier of the action. This will be either the 397 * identifier you supplied, or {@link EditorInfo#IME_NULL 398 * EditorInfo.IME_NULL} if being called due to the enter key 399 * being pressed. 400 * @param event If triggered by an enter key, this is the event; 401 * otherwise, this is null. 402 * @return Return true if you have consumed the action, else false. 403 */ 404 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 405 } 406 407 public TextView(Context context) { 408 this(context, null); 409 } 410 411 public TextView(Context context, 412 AttributeSet attrs) { 413 this(context, attrs, com.android.internal.R.attr.textViewStyle); 414 } 415 416 @SuppressWarnings("deprecation") 417 public TextView(Context context, 418 AttributeSet attrs, 419 int defStyle) { 420 super(context, attrs, defStyle); 421 mText = ""; 422 423 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 424 mTextPaint.density = getResources().getDisplayMetrics().density; 425 mTextPaint.setCompatibilityScaling( 426 getResources().getCompatibilityInfo().applicationScale); 427 428 // If we get the paint from the skin, we should set it to left, since 429 // the layout always wants it to be left. 430 // mTextPaint.setTextAlign(Paint.Align.LEFT); 431 432 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 433 mHighlightPaint.setCompatibilityScaling( 434 getResources().getCompatibilityInfo().applicationScale); 435 436 mMovement = getDefaultMovementMethod(); 437 mTransformation = null; 438 439 TypedArray a = 440 context.obtainStyledAttributes( 441 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 442 443 int textColorHighlight = 0; 444 ColorStateList textColor = null; 445 ColorStateList textColorHint = null; 446 ColorStateList textColorLink = null; 447 int textSize = 15; 448 int typefaceIndex = -1; 449 int styleIndex = -1; 450 boolean allCaps = false; 451 452 /* 453 * Look the appearance up without checking first if it exists because 454 * almost every TextView has one and it greatly simplifies the logic 455 * to be able to parse the appearance first and then let specific tags 456 * for this View override it. 457 */ 458 TypedArray appearance = null; 459 int ap = a.getResourceId(com.android.internal.R.styleable.TextView_textAppearance, -1); 460 if (ap != -1) { 461 appearance = context.obtainStyledAttributes(ap, 462 com.android.internal.R.styleable. 463 TextAppearance); 464 } 465 if (appearance != null) { 466 int n = appearance.getIndexCount(); 467 for (int i = 0; i < n; i++) { 468 int attr = appearance.getIndex(i); 469 470 switch (attr) { 471 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 472 textColorHighlight = appearance.getColor(attr, textColorHighlight); 473 break; 474 475 case com.android.internal.R.styleable.TextAppearance_textColor: 476 textColor = appearance.getColorStateList(attr); 477 break; 478 479 case com.android.internal.R.styleable.TextAppearance_textColorHint: 480 textColorHint = appearance.getColorStateList(attr); 481 break; 482 483 case com.android.internal.R.styleable.TextAppearance_textColorLink: 484 textColorLink = appearance.getColorStateList(attr); 485 break; 486 487 case com.android.internal.R.styleable.TextAppearance_textSize: 488 textSize = appearance.getDimensionPixelSize(attr, textSize); 489 break; 490 491 case com.android.internal.R.styleable.TextAppearance_typeface: 492 typefaceIndex = appearance.getInt(attr, -1); 493 break; 494 495 case com.android.internal.R.styleable.TextAppearance_textStyle: 496 styleIndex = appearance.getInt(attr, -1); 497 break; 498 499 case com.android.internal.R.styleable.TextAppearance_textAllCaps: 500 allCaps = appearance.getBoolean(attr, false); 501 break; 502 } 503 } 504 505 appearance.recycle(); 506 } 507 508 boolean editable = getDefaultEditable(); 509 CharSequence inputMethod = null; 510 int numeric = 0; 511 CharSequence digits = null; 512 boolean phone = false; 513 boolean autotext = false; 514 int autocap = -1; 515 int buffertype = 0; 516 boolean selectallonfocus = false; 517 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 518 drawableBottom = null, drawableStart = null, drawableEnd = null; 519 int drawablePadding = 0; 520 int ellipsize = -1; 521 boolean singleLine = false; 522 int maxlength = -1; 523 CharSequence text = ""; 524 CharSequence hint = null; 525 int shadowcolor = 0; 526 float dx = 0, dy = 0, r = 0; 527 boolean password = false; 528 int inputType = EditorInfo.TYPE_NULL; 529 530 int n = a.getIndexCount(); 531 for (int i = 0; i < n; i++) { 532 int attr = a.getIndex(i); 533 534 switch (attr) { 535 case com.android.internal.R.styleable.TextView_editable: 536 editable = a.getBoolean(attr, editable); 537 break; 538 539 case com.android.internal.R.styleable.TextView_inputMethod: 540 inputMethod = a.getText(attr); 541 break; 542 543 case com.android.internal.R.styleable.TextView_numeric: 544 numeric = a.getInt(attr, numeric); 545 break; 546 547 case com.android.internal.R.styleable.TextView_digits: 548 digits = a.getText(attr); 549 break; 550 551 case com.android.internal.R.styleable.TextView_phoneNumber: 552 phone = a.getBoolean(attr, phone); 553 break; 554 555 case com.android.internal.R.styleable.TextView_autoText: 556 autotext = a.getBoolean(attr, autotext); 557 break; 558 559 case com.android.internal.R.styleable.TextView_capitalize: 560 autocap = a.getInt(attr, autocap); 561 break; 562 563 case com.android.internal.R.styleable.TextView_bufferType: 564 buffertype = a.getInt(attr, buffertype); 565 break; 566 567 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 568 selectallonfocus = a.getBoolean(attr, selectallonfocus); 569 break; 570 571 case com.android.internal.R.styleable.TextView_autoLink: 572 mAutoLinkMask = a.getInt(attr, 0); 573 break; 574 575 case com.android.internal.R.styleable.TextView_linksClickable: 576 mLinksClickable = a.getBoolean(attr, true); 577 break; 578 579 case com.android.internal.R.styleable.TextView_drawableLeft: 580 drawableLeft = a.getDrawable(attr); 581 break; 582 583 case com.android.internal.R.styleable.TextView_drawableTop: 584 drawableTop = a.getDrawable(attr); 585 break; 586 587 case com.android.internal.R.styleable.TextView_drawableRight: 588 drawableRight = a.getDrawable(attr); 589 break; 590 591 case com.android.internal.R.styleable.TextView_drawableBottom: 592 drawableBottom = a.getDrawable(attr); 593 break; 594 595 case com.android.internal.R.styleable.TextView_drawableStart: 596 drawableStart = a.getDrawable(attr); 597 break; 598 599 case com.android.internal.R.styleable.TextView_drawableEnd: 600 drawableEnd = a.getDrawable(attr); 601 break; 602 603 case com.android.internal.R.styleable.TextView_drawablePadding: 604 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 605 break; 606 607 case com.android.internal.R.styleable.TextView_maxLines: 608 setMaxLines(a.getInt(attr, -1)); 609 break; 610 611 case com.android.internal.R.styleable.TextView_maxHeight: 612 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 613 break; 614 615 case com.android.internal.R.styleable.TextView_lines: 616 setLines(a.getInt(attr, -1)); 617 break; 618 619 case com.android.internal.R.styleable.TextView_height: 620 setHeight(a.getDimensionPixelSize(attr, -1)); 621 break; 622 623 case com.android.internal.R.styleable.TextView_minLines: 624 setMinLines(a.getInt(attr, -1)); 625 break; 626 627 case com.android.internal.R.styleable.TextView_minHeight: 628 setMinHeight(a.getDimensionPixelSize(attr, -1)); 629 break; 630 631 case com.android.internal.R.styleable.TextView_maxEms: 632 setMaxEms(a.getInt(attr, -1)); 633 break; 634 635 case com.android.internal.R.styleable.TextView_maxWidth: 636 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 637 break; 638 639 case com.android.internal.R.styleable.TextView_ems: 640 setEms(a.getInt(attr, -1)); 641 break; 642 643 case com.android.internal.R.styleable.TextView_width: 644 setWidth(a.getDimensionPixelSize(attr, -1)); 645 break; 646 647 case com.android.internal.R.styleable.TextView_minEms: 648 setMinEms(a.getInt(attr, -1)); 649 break; 650 651 case com.android.internal.R.styleable.TextView_minWidth: 652 setMinWidth(a.getDimensionPixelSize(attr, -1)); 653 break; 654 655 case com.android.internal.R.styleable.TextView_gravity: 656 setGravity(a.getInt(attr, -1)); 657 break; 658 659 case com.android.internal.R.styleable.TextView_hint: 660 hint = a.getText(attr); 661 break; 662 663 case com.android.internal.R.styleable.TextView_text: 664 text = a.getText(attr); 665 break; 666 667 case com.android.internal.R.styleable.TextView_scrollHorizontally: 668 if (a.getBoolean(attr, false)) { 669 setHorizontallyScrolling(true); 670 } 671 break; 672 673 case com.android.internal.R.styleable.TextView_singleLine: 674 singleLine = a.getBoolean(attr, singleLine); 675 break; 676 677 case com.android.internal.R.styleable.TextView_ellipsize: 678 ellipsize = a.getInt(attr, ellipsize); 679 break; 680 681 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 682 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 683 break; 684 685 case com.android.internal.R.styleable.TextView_includeFontPadding: 686 if (!a.getBoolean(attr, true)) { 687 setIncludeFontPadding(false); 688 } 689 break; 690 691 case com.android.internal.R.styleable.TextView_cursorVisible: 692 if (!a.getBoolean(attr, true)) { 693 setCursorVisible(false); 694 } 695 break; 696 697 case com.android.internal.R.styleable.TextView_maxLength: 698 maxlength = a.getInt(attr, -1); 699 break; 700 701 case com.android.internal.R.styleable.TextView_textScaleX: 702 setTextScaleX(a.getFloat(attr, 1.0f)); 703 break; 704 705 case com.android.internal.R.styleable.TextView_freezesText: 706 mFreezesText = a.getBoolean(attr, false); 707 break; 708 709 case com.android.internal.R.styleable.TextView_shadowColor: 710 shadowcolor = a.getInt(attr, 0); 711 break; 712 713 case com.android.internal.R.styleable.TextView_shadowDx: 714 dx = a.getFloat(attr, 0); 715 break; 716 717 case com.android.internal.R.styleable.TextView_shadowDy: 718 dy = a.getFloat(attr, 0); 719 break; 720 721 case com.android.internal.R.styleable.TextView_shadowRadius: 722 r = a.getFloat(attr, 0); 723 break; 724 725 case com.android.internal.R.styleable.TextView_enabled: 726 setEnabled(a.getBoolean(attr, isEnabled())); 727 break; 728 729 case com.android.internal.R.styleable.TextView_textColorHighlight: 730 textColorHighlight = a.getColor(attr, textColorHighlight); 731 break; 732 733 case com.android.internal.R.styleable.TextView_textColor: 734 textColor = a.getColorStateList(attr); 735 break; 736 737 case com.android.internal.R.styleable.TextView_textColorHint: 738 textColorHint = a.getColorStateList(attr); 739 break; 740 741 case com.android.internal.R.styleable.TextView_textColorLink: 742 textColorLink = a.getColorStateList(attr); 743 break; 744 745 case com.android.internal.R.styleable.TextView_textSize: 746 textSize = a.getDimensionPixelSize(attr, textSize); 747 break; 748 749 case com.android.internal.R.styleable.TextView_typeface: 750 typefaceIndex = a.getInt(attr, typefaceIndex); 751 break; 752 753 case com.android.internal.R.styleable.TextView_textStyle: 754 styleIndex = a.getInt(attr, styleIndex); 755 break; 756 757 case com.android.internal.R.styleable.TextView_password: 758 password = a.getBoolean(attr, password); 759 break; 760 761 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 762 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 763 break; 764 765 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 766 mSpacingMult = a.getFloat(attr, mSpacingMult); 767 break; 768 769 case com.android.internal.R.styleable.TextView_inputType: 770 inputType = a.getInt(attr, mInputType); 771 break; 772 773 case com.android.internal.R.styleable.TextView_imeOptions: 774 if (mInputContentType == null) { 775 mInputContentType = new InputContentType(); 776 } 777 mInputContentType.imeOptions = a.getInt(attr, 778 mInputContentType.imeOptions); 779 break; 780 781 case com.android.internal.R.styleable.TextView_imeActionLabel: 782 if (mInputContentType == null) { 783 mInputContentType = new InputContentType(); 784 } 785 mInputContentType.imeActionLabel = a.getText(attr); 786 break; 787 788 case com.android.internal.R.styleable.TextView_imeActionId: 789 if (mInputContentType == null) { 790 mInputContentType = new InputContentType(); 791 } 792 mInputContentType.imeActionId = a.getInt(attr, 793 mInputContentType.imeActionId); 794 break; 795 796 case com.android.internal.R.styleable.TextView_privateImeOptions: 797 setPrivateImeOptions(a.getString(attr)); 798 break; 799 800 case com.android.internal.R.styleable.TextView_editorExtras: 801 try { 802 setInputExtras(a.getResourceId(attr, 0)); 803 } catch (XmlPullParserException e) { 804 Log.w(LOG_TAG, "Failure reading input extras", e); 805 } catch (IOException e) { 806 Log.w(LOG_TAG, "Failure reading input extras", e); 807 } 808 break; 809 810 case com.android.internal.R.styleable.TextView_textCursorDrawable: 811 mCursorDrawableRes = a.getResourceId(attr, 0); 812 break; 813 814 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 815 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 816 break; 817 818 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 819 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 820 break; 821 822 case com.android.internal.R.styleable.TextView_textSelectHandle: 823 mTextSelectHandleRes = a.getResourceId(attr, 0); 824 break; 825 826 case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout: 827 mTextEditSuggestionItemLayout = a.getResourceId(attr, 0); 828 break; 829 830 case com.android.internal.R.styleable.TextView_textIsSelectable: 831 mTextIsSelectable = a.getBoolean(attr, false); 832 break; 833 834 case com.android.internal.R.styleable.TextView_suggestionsEnabled: 835 mSuggestionsEnabled = a.getBoolean(attr, true); 836 break; 837 838 case com.android.internal.R.styleable.TextView_textAllCaps: 839 allCaps = a.getBoolean(attr, false); 840 break; 841 } 842 } 843 a.recycle(); 844 845 BufferType bufferType = BufferType.EDITABLE; 846 847 final int variation = 848 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 849 final boolean passwordInputType = variation 850 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 851 final boolean webPasswordInputType = variation 852 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 853 final boolean numberPasswordInputType = variation 854 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 855 856 if (inputMethod != null) { 857 Class<?> c; 858 859 try { 860 c = Class.forName(inputMethod.toString()); 861 } catch (ClassNotFoundException ex) { 862 throw new RuntimeException(ex); 863 } 864 865 try { 866 mInput = (KeyListener) c.newInstance(); 867 } catch (InstantiationException ex) { 868 throw new RuntimeException(ex); 869 } catch (IllegalAccessException ex) { 870 throw new RuntimeException(ex); 871 } 872 try { 873 mInputType = inputType != EditorInfo.TYPE_NULL 874 ? inputType 875 : mInput.getInputType(); 876 } catch (IncompatibleClassChangeError e) { 877 mInputType = EditorInfo.TYPE_CLASS_TEXT; 878 } 879 } else if (digits != null) { 880 mInput = DigitsKeyListener.getInstance(digits.toString()); 881 // If no input type was specified, we will default to generic 882 // text, since we can't tell the IME about the set of digits 883 // that was selected. 884 mInputType = inputType != EditorInfo.TYPE_NULL 885 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 886 } else if (inputType != EditorInfo.TYPE_NULL) { 887 setInputType(inputType, true); 888 // If set, the input type overrides what was set using the deprecated singleLine flag. 889 singleLine = !isMultilineInputType(inputType); 890 } else if (phone) { 891 mInput = DialerKeyListener.getInstance(); 892 mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 893 } else if (numeric != 0) { 894 mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 895 (numeric & DECIMAL) != 0); 896 inputType = EditorInfo.TYPE_CLASS_NUMBER; 897 if ((numeric & SIGNED) != 0) { 898 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 899 } 900 if ((numeric & DECIMAL) != 0) { 901 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 902 } 903 mInputType = inputType; 904 } else if (autotext || autocap != -1) { 905 TextKeyListener.Capitalize cap; 906 907 inputType = EditorInfo.TYPE_CLASS_TEXT; 908 909 switch (autocap) { 910 case 1: 911 cap = TextKeyListener.Capitalize.SENTENCES; 912 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 913 break; 914 915 case 2: 916 cap = TextKeyListener.Capitalize.WORDS; 917 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 918 break; 919 920 case 3: 921 cap = TextKeyListener.Capitalize.CHARACTERS; 922 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 923 break; 924 925 default: 926 cap = TextKeyListener.Capitalize.NONE; 927 break; 928 } 929 930 mInput = TextKeyListener.getInstance(autotext, cap); 931 mInputType = inputType; 932 } else if (mTextIsSelectable) { 933 // Prevent text changes from keyboard. 934 mInputType = EditorInfo.TYPE_NULL; 935 mInput = null; 936 bufferType = BufferType.SPANNABLE; 937 // Required to request focus while in touch mode. 938 setFocusableInTouchMode(true); 939 // So that selection can be changed using arrow keys and touch is handled. 940 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 941 } else if (editable) { 942 mInput = TextKeyListener.getInstance(); 943 mInputType = EditorInfo.TYPE_CLASS_TEXT; 944 } else { 945 mInput = null; 946 947 switch (buffertype) { 948 case 0: 949 bufferType = BufferType.NORMAL; 950 break; 951 case 1: 952 bufferType = BufferType.SPANNABLE; 953 break; 954 case 2: 955 bufferType = BufferType.EDITABLE; 956 break; 957 } 958 } 959 960 // mInputType has been set from inputType, possibly modified by mInputMethod. 961 // Specialize mInputType to [web]password if we have a text class and the original input 962 // type was a password. 963 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 964 if (password || passwordInputType) { 965 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 966 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 967 } 968 if (webPasswordInputType) { 969 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 970 | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 971 } 972 } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { 973 if (numberPasswordInputType) { 974 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 975 | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 976 } 977 } 978 979 if (selectallonfocus) { 980 mSelectAllOnFocus = true; 981 982 if (bufferType == BufferType.NORMAL) 983 bufferType = BufferType.SPANNABLE; 984 } 985 986 setCompoundDrawablesWithIntrinsicBounds( 987 drawableLeft, drawableTop, drawableRight, drawableBottom); 988 setRelativeDrawablesIfNeeded(drawableStart, drawableEnd); 989 setCompoundDrawablePadding(drawablePadding); 990 991 // Same as setSingleLine(), but make sure the transformation method and the maximum number 992 // of lines of height are unchanged for multi-line TextViews. 993 setInputTypeSingleLine(singleLine); 994 applySingleLine(singleLine, singleLine, singleLine); 995 996 if (singleLine && mInput == null && ellipsize < 0) { 997 ellipsize = 3; // END 998 } 999 1000 switch (ellipsize) { 1001 case 1: 1002 setEllipsize(TextUtils.TruncateAt.START); 1003 break; 1004 case 2: 1005 setEllipsize(TextUtils.TruncateAt.MIDDLE); 1006 break; 1007 case 3: 1008 setEllipsize(TextUtils.TruncateAt.END); 1009 break; 1010 case 4: 1011 setHorizontalFadingEdgeEnabled( 1012 ViewConfiguration.get(context).isFadingMarqueeEnabled()); 1013 setEllipsize(TextUtils.TruncateAt.MARQUEE); 1014 break; 1015 } 1016 1017 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 1018 setHintTextColor(textColorHint); 1019 setLinkTextColor(textColorLink); 1020 if (textColorHighlight != 0) { 1021 setHighlightColor(textColorHighlight); 1022 } 1023 setRawTextSize(textSize); 1024 1025 if (allCaps) { 1026 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 1027 } 1028 1029 if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) { 1030 setTransformationMethod(PasswordTransformationMethod.getInstance()); 1031 typefaceIndex = MONOSPACE; 1032 } else if ((mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 1033 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 1034 typefaceIndex = MONOSPACE; 1035 } 1036 1037 setTypefaceByIndex(typefaceIndex, styleIndex); 1038 1039 if (shadowcolor != 0) { 1040 setShadowLayer(r, dx, dy, shadowcolor); 1041 } 1042 1043 if (maxlength >= 0) { 1044 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 1045 } else { 1046 setFilters(NO_FILTERS); 1047 } 1048 1049 setText(text, bufferType); 1050 if (hint != null) setHint(hint); 1051 1052 /* 1053 * Views are not normally focusable unless specified to be. 1054 * However, TextViews that have input or movement methods *are* 1055 * focusable by default. 1056 */ 1057 a = context.obtainStyledAttributes(attrs, 1058 com.android.internal.R.styleable.View, 1059 defStyle, 0); 1060 1061 boolean focusable = mMovement != null || mInput != null; 1062 boolean clickable = focusable; 1063 boolean longClickable = focusable; 1064 1065 n = a.getIndexCount(); 1066 for (int i = 0; i < n; i++) { 1067 int attr = a.getIndex(i); 1068 1069 switch (attr) { 1070 case com.android.internal.R.styleable.View_focusable: 1071 focusable = a.getBoolean(attr, focusable); 1072 break; 1073 1074 case com.android.internal.R.styleable.View_clickable: 1075 clickable = a.getBoolean(attr, clickable); 1076 break; 1077 1078 case com.android.internal.R.styleable.View_longClickable: 1079 longClickable = a.getBoolean(attr, longClickable); 1080 break; 1081 } 1082 } 1083 a.recycle(); 1084 1085 setFocusable(focusable); 1086 setClickable(clickable); 1087 setLongClickable(longClickable); 1088 1089 prepareCursorControllers(); 1090 1091 final ViewConfiguration viewConfiguration = ViewConfiguration.get(context); 1092 final int touchSlop = viewConfiguration.getScaledTouchSlop(); 1093 mSquaredTouchSlopDistance = touchSlop * touchSlop; 1094 } 1095 1096 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 1097 Typeface tf = null; 1098 switch (typefaceIndex) { 1099 case SANS: 1100 tf = Typeface.SANS_SERIF; 1101 break; 1102 1103 case SERIF: 1104 tf = Typeface.SERIF; 1105 break; 1106 1107 case MONOSPACE: 1108 tf = Typeface.MONOSPACE; 1109 break; 1110 } 1111 1112 setTypeface(tf, styleIndex); 1113 } 1114 1115 private void setRelativeDrawablesIfNeeded(Drawable start, Drawable end) { 1116 boolean hasRelativeDrawables = (start != null) || (end != null); 1117 if (hasRelativeDrawables) { 1118 Drawables dr = mDrawables; 1119 if (dr == null) { 1120 mDrawables = dr = new Drawables(); 1121 } 1122 final Rect compoundRect = dr.mCompoundRect; 1123 int[] state = getDrawableState(); 1124 if (start != null) { 1125 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1126 start.setState(state); 1127 start.copyBounds(compoundRect); 1128 start.setCallback(this); 1129 1130 dr.mDrawableStart = start; 1131 dr.mDrawableSizeStart = compoundRect.width(); 1132 dr.mDrawableHeightStart = compoundRect.height(); 1133 } else { 1134 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1135 } 1136 if (end != null) { 1137 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1138 end.setState(state); 1139 end.copyBounds(compoundRect); 1140 end.setCallback(this); 1141 1142 dr.mDrawableEnd = end; 1143 dr.mDrawableSizeEnd = compoundRect.width(); 1144 dr.mDrawableHeightEnd = compoundRect.height(); 1145 } else { 1146 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1147 } 1148 } 1149 } 1150 1151 @Override 1152 public void setEnabled(boolean enabled) { 1153 if (enabled == isEnabled()) { 1154 return; 1155 } 1156 1157 if (!enabled) { 1158 // Hide the soft input if the currently active TextView is disabled 1159 InputMethodManager imm = InputMethodManager.peekInstance(); 1160 if (imm != null && imm.isActive(this)) { 1161 imm.hideSoftInputFromWindow(getWindowToken(), 0); 1162 } 1163 } 1164 super.setEnabled(enabled); 1165 prepareCursorControllers(); 1166 } 1167 1168 /** 1169 * Sets the typeface and style in which the text should be displayed, 1170 * and turns on the fake bold and italic bits in the Paint if the 1171 * Typeface that you provided does not have all the bits in the 1172 * style that you specified. 1173 * 1174 * @attr ref android.R.styleable#TextView_typeface 1175 * @attr ref android.R.styleable#TextView_textStyle 1176 */ 1177 public void setTypeface(Typeface tf, int style) { 1178 if (style > 0) { 1179 if (tf == null) { 1180 tf = Typeface.defaultFromStyle(style); 1181 } else { 1182 tf = Typeface.create(tf, style); 1183 } 1184 1185 setTypeface(tf); 1186 // now compute what (if any) algorithmic styling is needed 1187 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1188 int need = style & ~typefaceStyle; 1189 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1190 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1191 } else { 1192 mTextPaint.setFakeBoldText(false); 1193 mTextPaint.setTextSkewX(0); 1194 setTypeface(tf); 1195 } 1196 } 1197 1198 /** 1199 * Subclasses override this to specify that they have a KeyListener 1200 * by default even if not specifically called for in the XML options. 1201 */ 1202 protected boolean getDefaultEditable() { 1203 return false; 1204 } 1205 1206 /** 1207 * Subclasses override this to specify a default movement method. 1208 */ 1209 protected MovementMethod getDefaultMovementMethod() { 1210 return null; 1211 } 1212 1213 /** 1214 * Return the text the TextView is displaying. If setText() was called with 1215 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1216 * the return value from this method to Spannable or Editable, respectively. 1217 * 1218 * Note: The content of the return value should not be modified. If you want 1219 * a modifiable one, you should make your own copy first. 1220 */ 1221 @ViewDebug.CapturedViewProperty 1222 public CharSequence getText() { 1223 return mText; 1224 } 1225 1226 /** 1227 * Returns the length, in characters, of the text managed by this TextView 1228 */ 1229 public int length() { 1230 return mText.length(); 1231 } 1232 1233 /** 1234 * Return the text the TextView is displaying as an Editable object. If 1235 * the text is not editable, null is returned. 1236 * 1237 * @see #getText 1238 */ 1239 public Editable getEditableText() { 1240 return (mText instanceof Editable) ? (Editable)mText : null; 1241 } 1242 1243 /** 1244 * @return the height of one standard line in pixels. Note that markup 1245 * within the text can cause individual lines to be taller or shorter 1246 * than this height, and the layout may contain additional first- 1247 * or last-line padding. 1248 */ 1249 public int getLineHeight() { 1250 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 1251 } 1252 1253 /** 1254 * @return the Layout that is currently being used to display the text. 1255 * This can be null if the text or width has recently changes. 1256 */ 1257 public final Layout getLayout() { 1258 return mLayout; 1259 } 1260 1261 /** 1262 * @return the current key listener for this TextView. 1263 * This will frequently be null for non-EditText TextViews. 1264 */ 1265 public final KeyListener getKeyListener() { 1266 return mInput; 1267 } 1268 1269 /** 1270 * Sets the key listener to be used with this TextView. This can be null 1271 * to disallow user input. Note that this method has significant and 1272 * subtle interactions with soft keyboards and other input method: 1273 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1274 * for important details. Calling this method will replace the current 1275 * content type of the text view with the content type returned by the 1276 * key listener. 1277 * <p> 1278 * Be warned that if you want a TextView with a key listener or movement 1279 * method not to be focusable, or if you want a TextView without a 1280 * key listener or movement method to be focusable, you must call 1281 * {@link #setFocusable} again after calling this to get the focusability 1282 * back the way you want it. 1283 * 1284 * @attr ref android.R.styleable#TextView_numeric 1285 * @attr ref android.R.styleable#TextView_digits 1286 * @attr ref android.R.styleable#TextView_phoneNumber 1287 * @attr ref android.R.styleable#TextView_inputMethod 1288 * @attr ref android.R.styleable#TextView_capitalize 1289 * @attr ref android.R.styleable#TextView_autoText 1290 */ 1291 public void setKeyListener(KeyListener input) { 1292 setKeyListenerOnly(input); 1293 fixFocusableAndClickableSettings(); 1294 1295 if (input != null) { 1296 try { 1297 mInputType = mInput.getInputType(); 1298 } catch (IncompatibleClassChangeError e) { 1299 mInputType = EditorInfo.TYPE_CLASS_TEXT; 1300 } 1301 // Change inputType, without affecting transformation. 1302 // No need to applySingleLine since mSingleLine is unchanged. 1303 setInputTypeSingleLine(mSingleLine); 1304 } else { 1305 mInputType = EditorInfo.TYPE_NULL; 1306 } 1307 1308 InputMethodManager imm = InputMethodManager.peekInstance(); 1309 if (imm != null) imm.restartInput(this); 1310 } 1311 1312 private void setKeyListenerOnly(KeyListener input) { 1313 mInput = input; 1314 if (mInput != null && !(mText instanceof Editable)) 1315 setText(mText); 1316 1317 setFilters((Editable) mText, mFilters); 1318 } 1319 1320 /** 1321 * @return the movement method being used for this TextView. 1322 * This will frequently be null for non-EditText TextViews. 1323 */ 1324 public final MovementMethod getMovementMethod() { 1325 return mMovement; 1326 } 1327 1328 /** 1329 * Sets the movement method (arrow key handler) to be used for 1330 * this TextView. This can be null to disallow using the arrow keys 1331 * to move the cursor or scroll the view. 1332 * <p> 1333 * Be warned that if you want a TextView with a key listener or movement 1334 * method not to be focusable, or if you want a TextView without a 1335 * key listener or movement method to be focusable, you must call 1336 * {@link #setFocusable} again after calling this to get the focusability 1337 * back the way you want it. 1338 */ 1339 public final void setMovementMethod(MovementMethod movement) { 1340 mMovement = movement; 1341 1342 if (mMovement != null && !(mText instanceof Spannable)) 1343 setText(mText); 1344 1345 fixFocusableAndClickableSettings(); 1346 1347 // SelectionModifierCursorController depends on textCanBeSelected, which depends on mMovement 1348 prepareCursorControllers(); 1349 } 1350 1351 private void fixFocusableAndClickableSettings() { 1352 if ((mMovement != null) || mInput != null) { 1353 setFocusable(true); 1354 setClickable(true); 1355 setLongClickable(true); 1356 } else { 1357 setFocusable(false); 1358 setClickable(false); 1359 setLongClickable(false); 1360 } 1361 } 1362 1363 /** 1364 * @return the current transformation method for this TextView. 1365 * This will frequently be null except for single-line and password 1366 * fields. 1367 */ 1368 public final TransformationMethod getTransformationMethod() { 1369 return mTransformation; 1370 } 1371 1372 /** 1373 * Sets the transformation that is applied to the text that this 1374 * TextView is displaying. 1375 * 1376 * @attr ref android.R.styleable#TextView_password 1377 * @attr ref android.R.styleable#TextView_singleLine 1378 */ 1379 public final void setTransformationMethod(TransformationMethod method) { 1380 if (method == mTransformation) { 1381 // Avoid the setText() below if the transformation is 1382 // the same. 1383 return; 1384 } 1385 if (mTransformation != null) { 1386 if (mText instanceof Spannable) { 1387 ((Spannable) mText).removeSpan(mTransformation); 1388 } 1389 } 1390 1391 mTransformation = method; 1392 1393 if (method instanceof TransformationMethod2) { 1394 TransformationMethod2 method2 = (TransformationMethod2) method; 1395 mAllowTransformationLengthChange = !mTextIsSelectable && !(mText instanceof Editable); 1396 method2.setLengthChangesAllowed(mAllowTransformationLengthChange); 1397 } else { 1398 mAllowTransformationLengthChange = false; 1399 } 1400 1401 setText(mText); 1402 } 1403 1404 /** 1405 * Returns the top padding of the view, plus space for the top 1406 * Drawable if any. 1407 */ 1408 public int getCompoundPaddingTop() { 1409 final Drawables dr = mDrawables; 1410 if (dr == null || dr.mDrawableTop == null) { 1411 return mPaddingTop; 1412 } else { 1413 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1414 } 1415 } 1416 1417 /** 1418 * Returns the bottom padding of the view, plus space for the bottom 1419 * Drawable if any. 1420 */ 1421 public int getCompoundPaddingBottom() { 1422 final Drawables dr = mDrawables; 1423 if (dr == null || dr.mDrawableBottom == null) { 1424 return mPaddingBottom; 1425 } else { 1426 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1427 } 1428 } 1429 1430 /** 1431 * Returns the left padding of the view, plus space for the left 1432 * Drawable if any. 1433 */ 1434 public int getCompoundPaddingLeft() { 1435 final Drawables dr = mDrawables; 1436 if (dr == null || dr.mDrawableLeft == null) { 1437 return mPaddingLeft; 1438 } else { 1439 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1440 } 1441 } 1442 1443 /** 1444 * Returns the right padding of the view, plus space for the right 1445 * Drawable if any. 1446 */ 1447 public int getCompoundPaddingRight() { 1448 final Drawables dr = mDrawables; 1449 if (dr == null || dr.mDrawableRight == null) { 1450 return mPaddingRight; 1451 } else { 1452 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1453 } 1454 } 1455 1456 /** 1457 * Returns the start padding of the view, plus space for the start 1458 * Drawable if any. 1459 * 1460 * @hide 1461 */ 1462 public int getCompoundPaddingStart() { 1463 resolveDrawables(); 1464 switch(getResolvedLayoutDirection()) { 1465 default: 1466 case LAYOUT_DIRECTION_LTR: 1467 return getCompoundPaddingLeft(); 1468 case LAYOUT_DIRECTION_RTL: 1469 return getCompoundPaddingRight(); 1470 } 1471 } 1472 1473 /** 1474 * Returns the end padding of the view, plus space for the end 1475 * Drawable if any. 1476 * 1477 * @hide 1478 */ 1479 public int getCompoundPaddingEnd() { 1480 resolveDrawables(); 1481 switch(getResolvedLayoutDirection()) { 1482 default: 1483 case LAYOUT_DIRECTION_LTR: 1484 return getCompoundPaddingRight(); 1485 case LAYOUT_DIRECTION_RTL: 1486 return getCompoundPaddingLeft(); 1487 } 1488 } 1489 1490 /** 1491 * Returns the extended top padding of the view, including both the 1492 * top Drawable if any and any extra space to keep more than maxLines 1493 * of text from showing. It is only valid to call this after measuring. 1494 */ 1495 public int getExtendedPaddingTop() { 1496 if (mMaxMode != LINES) { 1497 return getCompoundPaddingTop(); 1498 } 1499 1500 if (mLayout.getLineCount() <= mMaximum) { 1501 return getCompoundPaddingTop(); 1502 } 1503 1504 int top = getCompoundPaddingTop(); 1505 int bottom = getCompoundPaddingBottom(); 1506 int viewht = getHeight() - top - bottom; 1507 int layoutht = mLayout.getLineTop(mMaximum); 1508 1509 if (layoutht >= viewht) { 1510 return top; 1511 } 1512 1513 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1514 if (gravity == Gravity.TOP) { 1515 return top; 1516 } else if (gravity == Gravity.BOTTOM) { 1517 return top + viewht - layoutht; 1518 } else { // (gravity == Gravity.CENTER_VERTICAL) 1519 return top + (viewht - layoutht) / 2; 1520 } 1521 } 1522 1523 /** 1524 * Returns the extended bottom padding of the view, including both the 1525 * bottom Drawable if any and any extra space to keep more than maxLines 1526 * of text from showing. It is only valid to call this after measuring. 1527 */ 1528 public int getExtendedPaddingBottom() { 1529 if (mMaxMode != LINES) { 1530 return getCompoundPaddingBottom(); 1531 } 1532 1533 if (mLayout.getLineCount() <= mMaximum) { 1534 return getCompoundPaddingBottom(); 1535 } 1536 1537 int top = getCompoundPaddingTop(); 1538 int bottom = getCompoundPaddingBottom(); 1539 int viewht = getHeight() - top - bottom; 1540 int layoutht = mLayout.getLineTop(mMaximum); 1541 1542 if (layoutht >= viewht) { 1543 return bottom; 1544 } 1545 1546 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1547 if (gravity == Gravity.TOP) { 1548 return bottom + viewht - layoutht; 1549 } else if (gravity == Gravity.BOTTOM) { 1550 return bottom; 1551 } else { // (gravity == Gravity.CENTER_VERTICAL) 1552 return bottom + (viewht - layoutht) / 2; 1553 } 1554 } 1555 1556 /** 1557 * Returns the total left padding of the view, including the left 1558 * Drawable if any. 1559 */ 1560 public int getTotalPaddingLeft() { 1561 return getCompoundPaddingLeft(); 1562 } 1563 1564 /** 1565 * Returns the total right padding of the view, including the right 1566 * Drawable if any. 1567 */ 1568 public int getTotalPaddingRight() { 1569 return getCompoundPaddingRight(); 1570 } 1571 1572 /** 1573 * Returns the total start padding of the view, including the start 1574 * Drawable if any. 1575 * 1576 * @hide 1577 */ 1578 public int getTotalPaddingStart() { 1579 return getCompoundPaddingStart(); 1580 } 1581 1582 /** 1583 * Returns the total end padding of the view, including the end 1584 * Drawable if any. 1585 * 1586 * @hide 1587 */ 1588 public int getTotalPaddingEnd() { 1589 return getCompoundPaddingEnd(); 1590 } 1591 1592 /** 1593 * Returns the total top padding of the view, including the top 1594 * Drawable if any, the extra space to keep more than maxLines 1595 * from showing, and the vertical offset for gravity, if any. 1596 */ 1597 public int getTotalPaddingTop() { 1598 return getExtendedPaddingTop() + getVerticalOffset(true); 1599 } 1600 1601 /** 1602 * Returns the total bottom padding of the view, including the bottom 1603 * Drawable if any, the extra space to keep more than maxLines 1604 * from showing, and the vertical offset for gravity, if any. 1605 */ 1606 public int getTotalPaddingBottom() { 1607 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1608 } 1609 1610 /** 1611 * Sets the Drawables (if any) to appear to the left of, above, 1612 * to the right of, and below the text. Use null if you do not 1613 * want a Drawable there. The Drawables must already have had 1614 * {@link Drawable#setBounds} called. 1615 * 1616 * @attr ref android.R.styleable#TextView_drawableLeft 1617 * @attr ref android.R.styleable#TextView_drawableTop 1618 * @attr ref android.R.styleable#TextView_drawableRight 1619 * @attr ref android.R.styleable#TextView_drawableBottom 1620 */ 1621 public void setCompoundDrawables(Drawable left, Drawable top, 1622 Drawable right, Drawable bottom) { 1623 Drawables dr = mDrawables; 1624 1625 final boolean drawables = left != null || top != null 1626 || right != null || bottom != null; 1627 1628 if (!drawables) { 1629 // Clearing drawables... can we free the data structure? 1630 if (dr != null) { 1631 if (dr.mDrawablePadding == 0) { 1632 mDrawables = null; 1633 } else { 1634 // We need to retain the last set padding, so just clear 1635 // out all of the fields in the existing structure. 1636 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1637 dr.mDrawableLeft = null; 1638 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1639 dr.mDrawableTop = null; 1640 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1641 dr.mDrawableRight = null; 1642 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1643 dr.mDrawableBottom = null; 1644 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1645 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1646 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1647 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1648 } 1649 } 1650 } else { 1651 if (dr == null) { 1652 mDrawables = dr = new Drawables(); 1653 } 1654 1655 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1656 dr.mDrawableLeft.setCallback(null); 1657 } 1658 dr.mDrawableLeft = left; 1659 1660 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1661 dr.mDrawableTop.setCallback(null); 1662 } 1663 dr.mDrawableTop = top; 1664 1665 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1666 dr.mDrawableRight.setCallback(null); 1667 } 1668 dr.mDrawableRight = right; 1669 1670 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1671 dr.mDrawableBottom.setCallback(null); 1672 } 1673 dr.mDrawableBottom = bottom; 1674 1675 final Rect compoundRect = dr.mCompoundRect; 1676 int[] state; 1677 1678 state = getDrawableState(); 1679 1680 if (left != null) { 1681 left.setState(state); 1682 left.copyBounds(compoundRect); 1683 left.setCallback(this); 1684 dr.mDrawableSizeLeft = compoundRect.width(); 1685 dr.mDrawableHeightLeft = compoundRect.height(); 1686 } else { 1687 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1688 } 1689 1690 if (right != null) { 1691 right.setState(state); 1692 right.copyBounds(compoundRect); 1693 right.setCallback(this); 1694 dr.mDrawableSizeRight = compoundRect.width(); 1695 dr.mDrawableHeightRight = compoundRect.height(); 1696 } else { 1697 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1698 } 1699 1700 if (top != null) { 1701 top.setState(state); 1702 top.copyBounds(compoundRect); 1703 top.setCallback(this); 1704 dr.mDrawableSizeTop = compoundRect.height(); 1705 dr.mDrawableWidthTop = compoundRect.width(); 1706 } else { 1707 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1708 } 1709 1710 if (bottom != null) { 1711 bottom.setState(state); 1712 bottom.copyBounds(compoundRect); 1713 bottom.setCallback(this); 1714 dr.mDrawableSizeBottom = compoundRect.height(); 1715 dr.mDrawableWidthBottom = compoundRect.width(); 1716 } else { 1717 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1718 } 1719 } 1720 1721 invalidate(); 1722 requestLayout(); 1723 } 1724 1725 /** 1726 * Sets the Drawables (if any) to appear to the left of, above, 1727 * to the right of, and below the text. Use 0 if you do not 1728 * want a Drawable there. The Drawables' bounds will be set to 1729 * their intrinsic bounds. 1730 * 1731 * @param left Resource identifier of the left Drawable. 1732 * @param top Resource identifier of the top Drawable. 1733 * @param right Resource identifier of the right Drawable. 1734 * @param bottom Resource identifier of the bottom Drawable. 1735 * 1736 * @attr ref android.R.styleable#TextView_drawableLeft 1737 * @attr ref android.R.styleable#TextView_drawableTop 1738 * @attr ref android.R.styleable#TextView_drawableRight 1739 * @attr ref android.R.styleable#TextView_drawableBottom 1740 */ 1741 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1742 final Resources resources = getContext().getResources(); 1743 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1744 top != 0 ? resources.getDrawable(top) : null, 1745 right != 0 ? resources.getDrawable(right) : null, 1746 bottom != 0 ? resources.getDrawable(bottom) : null); 1747 } 1748 1749 /** 1750 * Sets the Drawables (if any) to appear to the left of, above, 1751 * to the right of, and below the text. Use null if you do not 1752 * want a Drawable there. The Drawables' bounds will be set to 1753 * their intrinsic bounds. 1754 * 1755 * @attr ref android.R.styleable#TextView_drawableLeft 1756 * @attr ref android.R.styleable#TextView_drawableTop 1757 * @attr ref android.R.styleable#TextView_drawableRight 1758 * @attr ref android.R.styleable#TextView_drawableBottom 1759 */ 1760 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1761 Drawable right, Drawable bottom) { 1762 1763 if (left != null) { 1764 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1765 } 1766 if (right != null) { 1767 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1768 } 1769 if (top != null) { 1770 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1771 } 1772 if (bottom != null) { 1773 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1774 } 1775 setCompoundDrawables(left, top, right, bottom); 1776 } 1777 1778 /** 1779 * Sets the Drawables (if any) to appear to the start of, above, 1780 * to the end of, and below the text. Use null if you do not 1781 * want a Drawable there. The Drawables must already have had 1782 * {@link Drawable#setBounds} called. 1783 * 1784 * @attr ref android.R.styleable#TextView_drawableStart 1785 * @attr ref android.R.styleable#TextView_drawableTop 1786 * @attr ref android.R.styleable#TextView_drawableEnd 1787 * @attr ref android.R.styleable#TextView_drawableBottom 1788 * 1789 * @hide 1790 */ 1791 public void setCompoundDrawablesRelative(Drawable start, Drawable top, 1792 Drawable end, Drawable bottom) { 1793 Drawables dr = mDrawables; 1794 1795 final boolean drawables = start != null || top != null 1796 || end != null || bottom != null; 1797 1798 if (!drawables) { 1799 // Clearing drawables... can we free the data structure? 1800 if (dr != null) { 1801 if (dr.mDrawablePadding == 0) { 1802 mDrawables = null; 1803 } else { 1804 // We need to retain the last set padding, so just clear 1805 // out all of the fields in the existing structure. 1806 if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null); 1807 dr.mDrawableStart = null; 1808 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1809 dr.mDrawableTop = null; 1810 if (dr.mDrawableEnd != null) dr.mDrawableEnd.setCallback(null); 1811 dr.mDrawableEnd = null; 1812 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1813 dr.mDrawableBottom = null; 1814 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1815 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1816 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1817 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1818 } 1819 } 1820 } else { 1821 if (dr == null) { 1822 mDrawables = dr = new Drawables(); 1823 } 1824 1825 if (dr.mDrawableStart != start && dr.mDrawableStart != null) { 1826 dr.mDrawableStart.setCallback(null); 1827 } 1828 dr.mDrawableStart = start; 1829 1830 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1831 dr.mDrawableTop.setCallback(null); 1832 } 1833 dr.mDrawableTop = top; 1834 1835 if (dr.mDrawableEnd != end && dr.mDrawableEnd != null) { 1836 dr.mDrawableEnd.setCallback(null); 1837 } 1838 dr.mDrawableEnd = end; 1839 1840 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1841 dr.mDrawableBottom.setCallback(null); 1842 } 1843 dr.mDrawableBottom = bottom; 1844 1845 final Rect compoundRect = dr.mCompoundRect; 1846 int[] state; 1847 1848 state = getDrawableState(); 1849 1850 if (start != null) { 1851 start.setState(state); 1852 start.copyBounds(compoundRect); 1853 start.setCallback(this); 1854 dr.mDrawableSizeStart = compoundRect.width(); 1855 dr.mDrawableHeightStart = compoundRect.height(); 1856 } else { 1857 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1858 } 1859 1860 if (end != null) { 1861 end.setState(state); 1862 end.copyBounds(compoundRect); 1863 end.setCallback(this); 1864 dr.mDrawableSizeEnd = compoundRect.width(); 1865 dr.mDrawableHeightEnd = compoundRect.height(); 1866 } else { 1867 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1868 } 1869 1870 if (top != null) { 1871 top.setState(state); 1872 top.copyBounds(compoundRect); 1873 top.setCallback(this); 1874 dr.mDrawableSizeTop = compoundRect.height(); 1875 dr.mDrawableWidthTop = compoundRect.width(); 1876 } else { 1877 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1878 } 1879 1880 if (bottom != null) { 1881 bottom.setState(state); 1882 bottom.copyBounds(compoundRect); 1883 bottom.setCallback(this); 1884 dr.mDrawableSizeBottom = compoundRect.height(); 1885 dr.mDrawableWidthBottom = compoundRect.width(); 1886 } else { 1887 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1888 } 1889 } 1890 1891 resolveDrawables(); 1892 invalidate(); 1893 requestLayout(); 1894 } 1895 1896 /** 1897 * Sets the Drawables (if any) to appear to the start of, above, 1898 * to the end of, and below the text. Use 0 if you do not 1899 * want a Drawable there. The Drawables' bounds will be set to 1900 * their intrinsic bounds. 1901 * 1902 * @param start Resource identifier of the start Drawable. 1903 * @param top Resource identifier of the top Drawable. 1904 * @param end Resource identifier of the end Drawable. 1905 * @param bottom Resource identifier of the bottom Drawable. 1906 * 1907 * @attr ref android.R.styleable#TextView_drawableStart 1908 * @attr ref android.R.styleable#TextView_drawableTop 1909 * @attr ref android.R.styleable#TextView_drawableEnd 1910 * @attr ref android.R.styleable#TextView_drawableBottom 1911 * 1912 * @hide 1913 */ 1914 public void setCompoundDrawablesRelativeWithIntrinsicBounds(int start, int top, int end, 1915 int bottom) { 1916 resetResolvedDrawables(); 1917 final Resources resources = getContext().getResources(); 1918 setCompoundDrawablesRelativeWithIntrinsicBounds( 1919 start != 0 ? resources.getDrawable(start) : null, 1920 top != 0 ? resources.getDrawable(top) : null, 1921 end != 0 ? resources.getDrawable(end) : null, 1922 bottom != 0 ? resources.getDrawable(bottom) : null); 1923 } 1924 1925 /** 1926 * Sets the Drawables (if any) to appear to the start of, above, 1927 * to the end of, and below the text. Use null if you do not 1928 * want a Drawable there. The Drawables' bounds will be set to 1929 * their intrinsic bounds. 1930 * 1931 * @attr ref android.R.styleable#TextView_drawableStart 1932 * @attr ref android.R.styleable#TextView_drawableTop 1933 * @attr ref android.R.styleable#TextView_drawableEnd 1934 * @attr ref android.R.styleable#TextView_drawableBottom 1935 * 1936 * @hide 1937 */ 1938 public void setCompoundDrawablesRelativeWithIntrinsicBounds(Drawable start, Drawable top, 1939 Drawable end, Drawable bottom) { 1940 1941 resetResolvedDrawables(); 1942 if (start != null) { 1943 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1944 } 1945 if (end != null) { 1946 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1947 } 1948 if (top != null) { 1949 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1950 } 1951 if (bottom != null) { 1952 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1953 } 1954 setCompoundDrawablesRelative(start, top, end, bottom); 1955 } 1956 1957 /** 1958 * Returns drawables for the left, top, right, and bottom borders. 1959 */ 1960 public Drawable[] getCompoundDrawables() { 1961 final Drawables dr = mDrawables; 1962 if (dr != null) { 1963 return new Drawable[] { 1964 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 1965 }; 1966 } else { 1967 return new Drawable[] { null, null, null, null }; 1968 } 1969 } 1970 1971 /** 1972 * Returns drawables for the start, top, end, and bottom borders. 1973 * 1974 * @hide 1975 */ 1976 public Drawable[] getCompoundDrawablesRelative() { 1977 final Drawables dr = mDrawables; 1978 if (dr != null) { 1979 return new Drawable[] { 1980 dr.mDrawableStart, dr.mDrawableTop, dr.mDrawableEnd, dr.mDrawableBottom 1981 }; 1982 } else { 1983 return new Drawable[] { null, null, null, null }; 1984 } 1985 } 1986 1987 /** 1988 * Sets the size of the padding between the compound drawables and 1989 * the text. 1990 * 1991 * @attr ref android.R.styleable#TextView_drawablePadding 1992 */ 1993 public void setCompoundDrawablePadding(int pad) { 1994 Drawables dr = mDrawables; 1995 if (pad == 0) { 1996 if (dr != null) { 1997 dr.mDrawablePadding = pad; 1998 } 1999 } else { 2000 if (dr == null) { 2001 mDrawables = dr = new Drawables(); 2002 } 2003 dr.mDrawablePadding = pad; 2004 } 2005 2006 invalidate(); 2007 requestLayout(); 2008 } 2009 2010 /** 2011 * Returns the padding between the compound drawables and the text. 2012 */ 2013 public int getCompoundDrawablePadding() { 2014 final Drawables dr = mDrawables; 2015 return dr != null ? dr.mDrawablePadding : 0; 2016 } 2017 2018 @Override 2019 public void setPadding(int left, int top, int right, int bottom) { 2020 if (left != mPaddingLeft || 2021 right != mPaddingRight || 2022 top != mPaddingTop || 2023 bottom != mPaddingBottom) { 2024 nullLayouts(); 2025 } 2026 2027 // the super call will requestLayout() 2028 super.setPadding(left, top, right, bottom); 2029 invalidate(); 2030 } 2031 2032 /** 2033 * Gets the autolink mask of the text. See {@link 2034 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2035 * possible values. 2036 * 2037 * @attr ref android.R.styleable#TextView_autoLink 2038 */ 2039 public final int getAutoLinkMask() { 2040 return mAutoLinkMask; 2041 } 2042 2043 /** 2044 * Sets the text color, size, style, hint color, and highlight color 2045 * from the specified TextAppearance resource. 2046 */ 2047 public void setTextAppearance(Context context, int resid) { 2048 TypedArray appearance = 2049 context.obtainStyledAttributes(resid, 2050 com.android.internal.R.styleable.TextAppearance); 2051 2052 int color; 2053 ColorStateList colors; 2054 int ts; 2055 2056 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 2057 if (color != 0) { 2058 setHighlightColor(color); 2059 } 2060 2061 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2062 TextAppearance_textColor); 2063 if (colors != null) { 2064 setTextColor(colors); 2065 } 2066 2067 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 2068 TextAppearance_textSize, 0); 2069 if (ts != 0) { 2070 setRawTextSize(ts); 2071 } 2072 2073 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2074 TextAppearance_textColorHint); 2075 if (colors != null) { 2076 setHintTextColor(colors); 2077 } 2078 2079 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2080 TextAppearance_textColorLink); 2081 if (colors != null) { 2082 setLinkTextColor(colors); 2083 } 2084 2085 int typefaceIndex, styleIndex; 2086 2087 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 2088 TextAppearance_typeface, -1); 2089 styleIndex = appearance.getInt(com.android.internal.R.styleable. 2090 TextAppearance_textStyle, -1); 2091 2092 setTypefaceByIndex(typefaceIndex, styleIndex); 2093 2094 if (appearance.getBoolean(com.android.internal.R.styleable.TextAppearance_textAllCaps, 2095 false)) { 2096 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 2097 } 2098 2099 appearance.recycle(); 2100 } 2101 2102 /** 2103 * @return the size (in pixels) of the default text size in this TextView. 2104 */ 2105 public float getTextSize() { 2106 return mTextPaint.getTextSize(); 2107 } 2108 2109 /** 2110 * Set the default text size to the given value, interpreted as "scaled 2111 * pixel" units. This size is adjusted based on the current density and 2112 * user font size preference. 2113 * 2114 * @param size The scaled pixel size. 2115 * 2116 * @attr ref android.R.styleable#TextView_textSize 2117 */ 2118 @android.view.RemotableViewMethod 2119 public void setTextSize(float size) { 2120 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 2121 } 2122 2123 /** 2124 * Set the default text size to a given unit and value. See {@link 2125 * TypedValue} for the possible dimension units. 2126 * 2127 * @param unit The desired dimension unit. 2128 * @param size The desired size in the given units. 2129 * 2130 * @attr ref android.R.styleable#TextView_textSize 2131 */ 2132 public void setTextSize(int unit, float size) { 2133 Context c = getContext(); 2134 Resources r; 2135 2136 if (c == null) 2137 r = Resources.getSystem(); 2138 else 2139 r = c.getResources(); 2140 2141 setRawTextSize(TypedValue.applyDimension( 2142 unit, size, r.getDisplayMetrics())); 2143 } 2144 2145 private void setRawTextSize(float size) { 2146 if (size != mTextPaint.getTextSize()) { 2147 mTextPaint.setTextSize(size); 2148 2149 if (mLayout != null) { 2150 nullLayouts(); 2151 requestLayout(); 2152 invalidate(); 2153 } 2154 } 2155 } 2156 2157 /** 2158 * @return the extent by which text is currently being stretched 2159 * horizontally. This will usually be 1. 2160 */ 2161 public float getTextScaleX() { 2162 return mTextPaint.getTextScaleX(); 2163 } 2164 2165 /** 2166 * Sets the extent by which text should be stretched horizontally. 2167 * 2168 * @attr ref android.R.styleable#TextView_textScaleX 2169 */ 2170 @android.view.RemotableViewMethod 2171 public void setTextScaleX(float size) { 2172 if (size != mTextPaint.getTextScaleX()) { 2173 mUserSetTextScaleX = true; 2174 mTextPaint.setTextScaleX(size); 2175 2176 if (mLayout != null) { 2177 nullLayouts(); 2178 requestLayout(); 2179 invalidate(); 2180 } 2181 } 2182 } 2183 2184 /** 2185 * Sets the typeface and style in which the text should be displayed. 2186 * Note that not all Typeface families actually have bold and italic 2187 * variants, so you may need to use 2188 * {@link #setTypeface(Typeface, int)} to get the appearance 2189 * that you actually want. 2190 * 2191 * @attr ref android.R.styleable#TextView_typeface 2192 * @attr ref android.R.styleable#TextView_textStyle 2193 */ 2194 public void setTypeface(Typeface tf) { 2195 if (mTextPaint.getTypeface() != tf) { 2196 mTextPaint.setTypeface(tf); 2197 2198 if (mLayout != null) { 2199 nullLayouts(); 2200 requestLayout(); 2201 invalidate(); 2202 } 2203 } 2204 } 2205 2206 /** 2207 * @return the current typeface and style in which the text is being 2208 * displayed. 2209 */ 2210 public Typeface getTypeface() { 2211 return mTextPaint.getTypeface(); 2212 } 2213 2214 /** 2215 * Sets the text color for all the states (normal, selected, 2216 * focused) to be this color. 2217 * 2218 * @attr ref android.R.styleable#TextView_textColor 2219 */ 2220 @android.view.RemotableViewMethod 2221 public void setTextColor(int color) { 2222 mTextColor = ColorStateList.valueOf(color); 2223 updateTextColors(); 2224 } 2225 2226 /** 2227 * Sets the text color. 2228 * 2229 * @attr ref android.R.styleable#TextView_textColor 2230 */ 2231 public void setTextColor(ColorStateList colors) { 2232 if (colors == null) { 2233 throw new NullPointerException(); 2234 } 2235 2236 mTextColor = colors; 2237 updateTextColors(); 2238 } 2239 2240 /** 2241 * Return the set of text colors. 2242 * 2243 * @return Returns the set of text colors. 2244 */ 2245 public final ColorStateList getTextColors() { 2246 return mTextColor; 2247 } 2248 2249 /** 2250 * <p>Return the current color selected for normal text.</p> 2251 * 2252 * @return Returns the current text color. 2253 */ 2254 public final int getCurrentTextColor() { 2255 return mCurTextColor; 2256 } 2257 2258 /** 2259 * Sets the color used to display the selection highlight. 2260 * 2261 * @attr ref android.R.styleable#TextView_textColorHighlight 2262 */ 2263 @android.view.RemotableViewMethod 2264 public void setHighlightColor(int color) { 2265 if (mHighlightColor != color) { 2266 mHighlightColor = color; 2267 invalidate(); 2268 } 2269 } 2270 2271 /** 2272 * Gives the text a shadow of the specified radius and color, the specified 2273 * distance from its normal position. 2274 * 2275 * @attr ref android.R.styleable#TextView_shadowColor 2276 * @attr ref android.R.styleable#TextView_shadowDx 2277 * @attr ref android.R.styleable#TextView_shadowDy 2278 * @attr ref android.R.styleable#TextView_shadowRadius 2279 */ 2280 public void setShadowLayer(float radius, float dx, float dy, int color) { 2281 mTextPaint.setShadowLayer(radius, dx, dy, color); 2282 2283 mShadowRadius = radius; 2284 mShadowDx = dx; 2285 mShadowDy = dy; 2286 2287 invalidate(); 2288 } 2289 2290 /** 2291 * @return the base paint used for the text. Please use this only to 2292 * consult the Paint's properties and not to change them. 2293 */ 2294 public TextPaint getPaint() { 2295 return mTextPaint; 2296 } 2297 2298 /** 2299 * Sets the autolink mask of the text. See {@link 2300 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2301 * possible values. 2302 * 2303 * @attr ref android.R.styleable#TextView_autoLink 2304 */ 2305 @android.view.RemotableViewMethod 2306 public final void setAutoLinkMask(int mask) { 2307 mAutoLinkMask = mask; 2308 } 2309 2310 /** 2311 * Sets whether the movement method will automatically be set to 2312 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2313 * set to nonzero and links are detected in {@link #setText}. 2314 * The default is true. 2315 * 2316 * @attr ref android.R.styleable#TextView_linksClickable 2317 */ 2318 @android.view.RemotableViewMethod 2319 public final void setLinksClickable(boolean whether) { 2320 mLinksClickable = whether; 2321 } 2322 2323 /** 2324 * Returns whether the movement method will automatically be set to 2325 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2326 * set to nonzero and links are detected in {@link #setText}. 2327 * The default is true. 2328 * 2329 * @attr ref android.R.styleable#TextView_linksClickable 2330 */ 2331 public final boolean getLinksClickable() { 2332 return mLinksClickable; 2333 } 2334 2335 /** 2336 * Returns the list of URLSpans attached to the text 2337 * (by {@link Linkify} or otherwise) if any. You can call 2338 * {@link URLSpan#getURL} on them to find where they link to 2339 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 2340 * to find the region of the text they are attached to. 2341 */ 2342 public URLSpan[] getUrls() { 2343 if (mText instanceof Spanned) { 2344 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 2345 } else { 2346 return new URLSpan[0]; 2347 } 2348 } 2349 2350 /** 2351 * Sets the color of the hint text. 2352 * 2353 * @attr ref android.R.styleable#TextView_textColorHint 2354 */ 2355 @android.view.RemotableViewMethod 2356 public final void setHintTextColor(int color) { 2357 mHintTextColor = ColorStateList.valueOf(color); 2358 updateTextColors(); 2359 } 2360 2361 /** 2362 * Sets the color of the hint text. 2363 * 2364 * @attr ref android.R.styleable#TextView_textColorHint 2365 */ 2366 public final void setHintTextColor(ColorStateList colors) { 2367 mHintTextColor = colors; 2368 updateTextColors(); 2369 } 2370 2371 /** 2372 * <p>Return the color used to paint the hint text.</p> 2373 * 2374 * @return Returns the list of hint text colors. 2375 */ 2376 public final ColorStateList getHintTextColors() { 2377 return mHintTextColor; 2378 } 2379 2380 /** 2381 * <p>Return the current color selected to paint the hint text.</p> 2382 * 2383 * @return Returns the current hint text color. 2384 */ 2385 public final int getCurrentHintTextColor() { 2386 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 2387 } 2388 2389 /** 2390 * Sets the color of links in the text. 2391 * 2392 * @attr ref android.R.styleable#TextView_textColorLink 2393 */ 2394 @android.view.RemotableViewMethod 2395 public final void setLinkTextColor(int color) { 2396 mLinkTextColor = ColorStateList.valueOf(color); 2397 updateTextColors(); 2398 } 2399 2400 /** 2401 * Sets the color of links in the text. 2402 * 2403 * @attr ref android.R.styleable#TextView_textColorLink 2404 */ 2405 public final void setLinkTextColor(ColorStateList colors) { 2406 mLinkTextColor = colors; 2407 updateTextColors(); 2408 } 2409 2410 /** 2411 * <p>Returns the color used to paint links in the text.</p> 2412 * 2413 * @return Returns the list of link text colors. 2414 */ 2415 public final ColorStateList getLinkTextColors() { 2416 return mLinkTextColor; 2417 } 2418 2419 /** 2420 * Sets the horizontal alignment of the text and the 2421 * vertical gravity that will be used when there is extra space 2422 * in the TextView beyond what is required for the text itself. 2423 * 2424 * @see android.view.Gravity 2425 * @attr ref android.R.styleable#TextView_gravity 2426 */ 2427 public void setGravity(int gravity) { 2428 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 2429 gravity |= Gravity.START; 2430 } 2431 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2432 gravity |= Gravity.TOP; 2433 } 2434 2435 boolean newLayout = false; 2436 2437 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != 2438 (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK)) { 2439 newLayout = true; 2440 } 2441 2442 if (gravity != mGravity) { 2443 invalidate(); 2444 } 2445 2446 mGravity = gravity; 2447 2448 if (mLayout != null && newLayout) { 2449 // XXX this is heavy-handed because no actual content changes. 2450 int want = mLayout.getWidth(); 2451 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2452 2453 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2454 mRight - mLeft - getCompoundPaddingLeft() - 2455 getCompoundPaddingRight(), true); 2456 } 2457 } 2458 2459 /** 2460 * Returns the horizontal and vertical alignment of this TextView. 2461 * 2462 * @see android.view.Gravity 2463 * @attr ref android.R.styleable#TextView_gravity 2464 */ 2465 public int getGravity() { 2466 return mGravity; 2467 } 2468 2469 /** 2470 * @return the flags on the Paint being used to display the text. 2471 * @see Paint#getFlags 2472 */ 2473 public int getPaintFlags() { 2474 return mTextPaint.getFlags(); 2475 } 2476 2477 /** 2478 * Sets flags on the Paint being used to display the text and 2479 * reflows the text if they are different from the old flags. 2480 * @see Paint#setFlags 2481 */ 2482 @android.view.RemotableViewMethod 2483 public void setPaintFlags(int flags) { 2484 if (mTextPaint.getFlags() != flags) { 2485 mTextPaint.setFlags(flags); 2486 2487 if (mLayout != null) { 2488 nullLayouts(); 2489 requestLayout(); 2490 invalidate(); 2491 } 2492 } 2493 } 2494 2495 /** 2496 * Sets whether the text should be allowed to be wider than the 2497 * View is. If false, it will be wrapped to the width of the View. 2498 * 2499 * @attr ref android.R.styleable#TextView_scrollHorizontally 2500 */ 2501 public void setHorizontallyScrolling(boolean whether) { 2502 if (mHorizontallyScrolling != whether) { 2503 mHorizontallyScrolling = whether; 2504 2505 if (mLayout != null) { 2506 nullLayouts(); 2507 requestLayout(); 2508 invalidate(); 2509 } 2510 } 2511 } 2512 2513 /** 2514 * Makes the TextView at least this many lines tall. 2515 * 2516 * Setting this value overrides any other (minimum) height setting. A single line TextView will 2517 * set this value to 1. 2518 * 2519 * @attr ref android.R.styleable#TextView_minLines 2520 */ 2521 @android.view.RemotableViewMethod 2522 public void setMinLines(int minlines) { 2523 mMinimum = minlines; 2524 mMinMode = LINES; 2525 2526 requestLayout(); 2527 invalidate(); 2528 } 2529 2530 /** 2531 * Makes the TextView at least this many pixels tall. 2532 * 2533 * Setting this value overrides any other (minimum) number of lines setting. 2534 * 2535 * @attr ref android.R.styleable#TextView_minHeight 2536 */ 2537 @android.view.RemotableViewMethod 2538 public void setMinHeight(int minHeight) { 2539 mMinimum = minHeight; 2540 mMinMode = PIXELS; 2541 2542 requestLayout(); 2543 invalidate(); 2544 } 2545 2546 /** 2547 * Makes the TextView at most this many lines tall. 2548 * 2549 * Setting this value overrides any other (maximum) height setting. 2550 * 2551 * @attr ref android.R.styleable#TextView_maxLines 2552 */ 2553 @android.view.RemotableViewMethod 2554 public void setMaxLines(int maxlines) { 2555 mMaximum = maxlines; 2556 mMaxMode = LINES; 2557 2558 requestLayout(); 2559 invalidate(); 2560 } 2561 2562 /** 2563 * Makes the TextView at most this many pixels tall. This option is mutually exclusive with the 2564 * {@link #setMaxLines(int)} method. 2565 * 2566 * Setting this value overrides any other (maximum) number of lines setting. 2567 * 2568 * @attr ref android.R.styleable#TextView_maxHeight 2569 */ 2570 @android.view.RemotableViewMethod 2571 public void setMaxHeight(int maxHeight) { 2572 mMaximum = maxHeight; 2573 mMaxMode = PIXELS; 2574 2575 requestLayout(); 2576 invalidate(); 2577 } 2578 2579 /** 2580 * Makes the TextView exactly this many lines tall. 2581 * 2582 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2583 * height setting. A single line TextView will set this value to 1. 2584 * 2585 * @attr ref android.R.styleable#TextView_lines 2586 */ 2587 @android.view.RemotableViewMethod 2588 public void setLines(int lines) { 2589 mMaximum = mMinimum = lines; 2590 mMaxMode = mMinMode = LINES; 2591 2592 requestLayout(); 2593 invalidate(); 2594 } 2595 2596 /** 2597 * Makes the TextView exactly this many pixels tall. 2598 * You could do the same thing by specifying this number in the 2599 * LayoutParams. 2600 * 2601 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2602 * height setting. 2603 * 2604 * @attr ref android.R.styleable#TextView_height 2605 */ 2606 @android.view.RemotableViewMethod 2607 public void setHeight(int pixels) { 2608 mMaximum = mMinimum = pixels; 2609 mMaxMode = mMinMode = PIXELS; 2610 2611 requestLayout(); 2612 invalidate(); 2613 } 2614 2615 /** 2616 * Makes the TextView at least this many ems wide 2617 * 2618 * @attr ref android.R.styleable#TextView_minEms 2619 */ 2620 @android.view.RemotableViewMethod 2621 public void setMinEms(int minems) { 2622 mMinWidth = minems; 2623 mMinWidthMode = EMS; 2624 2625 requestLayout(); 2626 invalidate(); 2627 } 2628 2629 /** 2630 * Makes the TextView at least this many pixels wide 2631 * 2632 * @attr ref android.R.styleable#TextView_minWidth 2633 */ 2634 @android.view.RemotableViewMethod 2635 public void setMinWidth(int minpixels) { 2636 mMinWidth = minpixels; 2637 mMinWidthMode = PIXELS; 2638 2639 requestLayout(); 2640 invalidate(); 2641 } 2642 2643 /** 2644 * Makes the TextView at most this many ems wide 2645 * 2646 * @attr ref android.R.styleable#TextView_maxEms 2647 */ 2648 @android.view.RemotableViewMethod 2649 public void setMaxEms(int maxems) { 2650 mMaxWidth = maxems; 2651 mMaxWidthMode = EMS; 2652 2653 requestLayout(); 2654 invalidate(); 2655 } 2656 2657 /** 2658 * Makes the TextView at most this many pixels wide 2659 * 2660 * @attr ref android.R.styleable#TextView_maxWidth 2661 */ 2662 @android.view.RemotableViewMethod 2663 public void setMaxWidth(int maxpixels) { 2664 mMaxWidth = maxpixels; 2665 mMaxWidthMode = PIXELS; 2666 2667 requestLayout(); 2668 invalidate(); 2669 } 2670 2671 /** 2672 * Makes the TextView exactly this many ems wide 2673 * 2674 * @attr ref android.R.styleable#TextView_ems 2675 */ 2676 @android.view.RemotableViewMethod 2677 public void setEms(int ems) { 2678 mMaxWidth = mMinWidth = ems; 2679 mMaxWidthMode = mMinWidthMode = EMS; 2680 2681 requestLayout(); 2682 invalidate(); 2683 } 2684 2685 /** 2686 * Makes the TextView exactly this many pixels wide. 2687 * You could do the same thing by specifying this number in the 2688 * LayoutParams. 2689 * 2690 * @attr ref android.R.styleable#TextView_width 2691 */ 2692 @android.view.RemotableViewMethod 2693 public void setWidth(int pixels) { 2694 mMaxWidth = mMinWidth = pixels; 2695 mMaxWidthMode = mMinWidthMode = PIXELS; 2696 2697 requestLayout(); 2698 invalidate(); 2699 } 2700 2701 2702 /** 2703 * Sets line spacing for this TextView. Each line will have its height 2704 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2705 * 2706 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2707 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2708 */ 2709 public void setLineSpacing(float add, float mult) { 2710 if (mSpacingAdd != add || mSpacingMult != mult) { 2711 mSpacingAdd = add; 2712 mSpacingMult = mult; 2713 2714 if (mLayout != null) { 2715 nullLayouts(); 2716 requestLayout(); 2717 invalidate(); 2718 } 2719 } 2720 } 2721 2722 /** 2723 * Convenience method: Append the specified text to the TextView's 2724 * display buffer, upgrading it to BufferType.EDITABLE if it was 2725 * not already editable. 2726 */ 2727 public final void append(CharSequence text) { 2728 append(text, 0, text.length()); 2729 } 2730 2731 /** 2732 * Convenience method: Append the specified text slice to the TextView's 2733 * display buffer, upgrading it to BufferType.EDITABLE if it was 2734 * not already editable. 2735 */ 2736 public void append(CharSequence text, int start, int end) { 2737 if (!(mText instanceof Editable)) { 2738 setText(mText, BufferType.EDITABLE); 2739 } 2740 2741 ((Editable) mText).append(text, start, end); 2742 } 2743 2744 private void updateTextColors() { 2745 boolean inval = false; 2746 int color = mTextColor.getColorForState(getDrawableState(), 0); 2747 if (color != mCurTextColor) { 2748 mCurTextColor = color; 2749 inval = true; 2750 } 2751 if (mLinkTextColor != null) { 2752 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2753 if (color != mTextPaint.linkColor) { 2754 mTextPaint.linkColor = color; 2755 inval = true; 2756 } 2757 } 2758 if (mHintTextColor != null) { 2759 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2760 if (color != mCurHintTextColor && mText.length() == 0) { 2761 mCurHintTextColor = color; 2762 inval = true; 2763 } 2764 } 2765 if (inval) { 2766 invalidate(); 2767 } 2768 } 2769 2770 @Override 2771 protected void drawableStateChanged() { 2772 super.drawableStateChanged(); 2773 if (mTextColor != null && mTextColor.isStateful() 2774 || (mHintTextColor != null && mHintTextColor.isStateful()) 2775 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2776 updateTextColors(); 2777 } 2778 2779 final Drawables dr = mDrawables; 2780 if (dr != null) { 2781 int[] state = getDrawableState(); 2782 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2783 dr.mDrawableTop.setState(state); 2784 } 2785 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2786 dr.mDrawableBottom.setState(state); 2787 } 2788 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2789 dr.mDrawableLeft.setState(state); 2790 } 2791 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2792 dr.mDrawableRight.setState(state); 2793 } 2794 if (dr.mDrawableStart != null && dr.mDrawableStart.isStateful()) { 2795 dr.mDrawableStart.setState(state); 2796 } 2797 if (dr.mDrawableEnd != null && dr.mDrawableEnd.isStateful()) { 2798 dr.mDrawableEnd.setState(state); 2799 } 2800 } 2801 } 2802 2803 /** 2804 * User interface state that is stored by TextView for implementing 2805 * {@link View#onSaveInstanceState}. 2806 */ 2807 public static class SavedState extends BaseSavedState { 2808 int selStart; 2809 int selEnd; 2810 CharSequence text; 2811 boolean frozenWithFocus; 2812 CharSequence error; 2813 2814 SavedState(Parcelable superState) { 2815 super(superState); 2816 } 2817 2818 @Override 2819 public void writeToParcel(Parcel out, int flags) { 2820 super.writeToParcel(out, flags); 2821 out.writeInt(selStart); 2822 out.writeInt(selEnd); 2823 out.writeInt(frozenWithFocus ? 1 : 0); 2824 TextUtils.writeToParcel(text, out, flags); 2825 2826 if (error == null) { 2827 out.writeInt(0); 2828 } else { 2829 out.writeInt(1); 2830 TextUtils.writeToParcel(error, out, flags); 2831 } 2832 } 2833 2834 @Override 2835 public String toString() { 2836 String str = "TextView.SavedState{" 2837 + Integer.toHexString(System.identityHashCode(this)) 2838 + " start=" + selStart + " end=" + selEnd; 2839 if (text != null) { 2840 str += " text=" + text; 2841 } 2842 return str + "}"; 2843 } 2844 2845 @SuppressWarnings("hiding") 2846 public static final Parcelable.Creator<SavedState> CREATOR 2847 = new Parcelable.Creator<SavedState>() { 2848 public SavedState createFromParcel(Parcel in) { 2849 return new SavedState(in); 2850 } 2851 2852 public SavedState[] newArray(int size) { 2853 return new SavedState[size]; 2854 } 2855 }; 2856 2857 private SavedState(Parcel in) { 2858 super(in); 2859 selStart = in.readInt(); 2860 selEnd = in.readInt(); 2861 frozenWithFocus = (in.readInt() != 0); 2862 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2863 2864 if (in.readInt() != 0) { 2865 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2866 } 2867 } 2868 } 2869 2870 @Override 2871 public Parcelable onSaveInstanceState() { 2872 Parcelable superState = super.onSaveInstanceState(); 2873 2874 // Save state if we are forced to 2875 boolean save = mFreezesText; 2876 int start = 0; 2877 int end = 0; 2878 2879 if (mText != null) { 2880 start = getSelectionStart(); 2881 end = getSelectionEnd(); 2882 if (start >= 0 || end >= 0) { 2883 // Or save state if there is a selection 2884 save = true; 2885 } 2886 } 2887 2888 if (save) { 2889 SavedState ss = new SavedState(superState); 2890 // XXX Should also save the current scroll position! 2891 ss.selStart = start; 2892 ss.selEnd = end; 2893 2894 if (mText instanceof Spanned) { 2895 /* 2896 * Calling setText() strips off any ChangeWatchers; 2897 * strip them now to avoid leaking references. 2898 * But do it to a copy so that if there are any 2899 * further changes to the text of this view, it 2900 * won't get into an inconsistent state. 2901 */ 2902 2903 Spannable sp = new SpannableString(mText); 2904 2905 for (ChangeWatcher cw : 2906 sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2907 sp.removeSpan(cw); 2908 } 2909 2910 // hideControllers would do it, but it gets called after this method on rotation 2911 sp.removeSpan(mSuggestionRangeSpan); 2912 2913 ss.text = sp; 2914 } else { 2915 ss.text = mText.toString(); 2916 } 2917 2918 if (isFocused() && start >= 0 && end >= 0) { 2919 ss.frozenWithFocus = true; 2920 } 2921 2922 ss.error = mError; 2923 2924 return ss; 2925 } 2926 2927 return superState; 2928 } 2929 2930 @Override 2931 public void onRestoreInstanceState(Parcelable state) { 2932 if (!(state instanceof SavedState)) { 2933 super.onRestoreInstanceState(state); 2934 return; 2935 } 2936 2937 SavedState ss = (SavedState)state; 2938 super.onRestoreInstanceState(ss.getSuperState()); 2939 2940 // XXX restore buffer type too, as well as lots of other stuff 2941 if (ss.text != null) { 2942 setText(ss.text); 2943 } 2944 2945 if (ss.selStart >= 0 && ss.selEnd >= 0) { 2946 if (mText instanceof Spannable) { 2947 int len = mText.length(); 2948 2949 if (ss.selStart > len || ss.selEnd > len) { 2950 String restored = ""; 2951 2952 if (ss.text != null) { 2953 restored = "(restored) "; 2954 } 2955 2956 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 2957 "/" + ss.selEnd + " out of range for " + restored + 2958 "text " + mText); 2959 } else { 2960 Selection.setSelection((Spannable) mText, ss.selStart, 2961 ss.selEnd); 2962 2963 if (ss.frozenWithFocus) { 2964 mFrozenWithFocus = true; 2965 } 2966 } 2967 } 2968 } 2969 2970 if (ss.error != null) { 2971 final CharSequence error = ss.error; 2972 // Display the error later, after the first layout pass 2973 post(new Runnable() { 2974 public void run() { 2975 setError(error); 2976 } 2977 }); 2978 } 2979 } 2980 2981 /** 2982 * Control whether this text view saves its entire text contents when 2983 * freezing to an icicle, in addition to dynamic state such as cursor 2984 * position. By default this is false, not saving the text. Set to true 2985 * if the text in the text view is not being saved somewhere else in 2986 * persistent storage (such as in a content provider) so that if the 2987 * view is later thawed the user will not lose their data. 2988 * 2989 * @param freezesText Controls whether a frozen icicle should include the 2990 * entire text data: true to include it, false to not. 2991 * 2992 * @attr ref android.R.styleable#TextView_freezesText 2993 */ 2994 @android.view.RemotableViewMethod 2995 public void setFreezesText(boolean freezesText) { 2996 mFreezesText = freezesText; 2997 } 2998 2999 /** 3000 * Return whether this text view is including its entire text contents 3001 * in frozen icicles. 3002 * 3003 * @return Returns true if text is included, false if it isn't. 3004 * 3005 * @see #setFreezesText 3006 */ 3007 public boolean getFreezesText() { 3008 return mFreezesText; 3009 } 3010 3011 /////////////////////////////////////////////////////////////////////////// 3012 3013 /** 3014 * Sets the Factory used to create new Editables. 3015 */ 3016 public final void setEditableFactory(Editable.Factory factory) { 3017 mEditableFactory = factory; 3018 setText(mText); 3019 } 3020 3021 /** 3022 * Sets the Factory used to create new Spannables. 3023 */ 3024 public final void setSpannableFactory(Spannable.Factory factory) { 3025 mSpannableFactory = factory; 3026 setText(mText); 3027 } 3028 3029 /** 3030 * Sets the string value of the TextView. TextView <em>does not</em> accept 3031 * HTML-like formatting, which you can do with text strings in XML resource files. 3032 * To style your strings, attach android.text.style.* objects to a 3033 * {@link android.text.SpannableString SpannableString}, or see the 3034 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 3035 * Available Resource Types</a> documentation for an example of setting 3036 * formatted text in the XML resource file. 3037 * 3038 * @attr ref android.R.styleable#TextView_text 3039 */ 3040 @android.view.RemotableViewMethod 3041 public final void setText(CharSequence text) { 3042 setText(text, mBufferType); 3043 } 3044 3045 /** 3046 * Like {@link #setText(CharSequence)}, 3047 * except that the cursor position (if any) is retained in the new text. 3048 * 3049 * @param text The new text to place in the text view. 3050 * 3051 * @see #setText(CharSequence) 3052 */ 3053 @android.view.RemotableViewMethod 3054 public final void setTextKeepState(CharSequence text) { 3055 setTextKeepState(text, mBufferType); 3056 } 3057 3058 /** 3059 * Sets the text that this TextView is to display (see 3060 * {@link #setText(CharSequence)}) and also sets whether it is stored 3061 * in a styleable/spannable buffer and whether it is editable. 3062 * 3063 * @attr ref android.R.styleable#TextView_text 3064 * @attr ref android.R.styleable#TextView_bufferType 3065 */ 3066 public void setText(CharSequence text, BufferType type) { 3067 setText(text, type, true, 0); 3068 3069 if (mCharWrapper != null) { 3070 mCharWrapper.mChars = null; 3071 } 3072 } 3073 3074 private void setText(CharSequence text, BufferType type, 3075 boolean notifyBefore, int oldlen) { 3076 if (text == null) { 3077 text = ""; 3078 } 3079 3080 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 3081 3082 if (text instanceof Spanned && 3083 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 3084 setHorizontalFadingEdgeEnabled( 3085 ViewConfiguration.get(mContext).isFadingMarqueeEnabled()); 3086 setEllipsize(TextUtils.TruncateAt.MARQUEE); 3087 } 3088 3089 int n = mFilters.length; 3090 for (int i = 0; i < n; i++) { 3091 CharSequence out = mFilters[i].filter(text, 0, text.length(), 3092 EMPTY_SPANNED, 0, 0); 3093 if (out != null) { 3094 text = out; 3095 } 3096 } 3097 3098 if (notifyBefore) { 3099 if (mText != null) { 3100 oldlen = mText.length(); 3101 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 3102 } else { 3103 sendBeforeTextChanged("", 0, 0, text.length()); 3104 } 3105 } 3106 3107 boolean needEditableForNotification = false; 3108 3109 if (mListeners != null && mListeners.size() != 0) { 3110 needEditableForNotification = true; 3111 } 3112 3113 if (type == BufferType.EDITABLE || mInput != null || 3114 needEditableForNotification) { 3115 Editable t = mEditableFactory.newEditable(text); 3116 text = t; 3117 setFilters(t, mFilters); 3118 InputMethodManager imm = InputMethodManager.peekInstance(); 3119 if (imm != null) imm.restartInput(this); 3120 } else if (type == BufferType.SPANNABLE || mMovement != null) { 3121 text = mSpannableFactory.newSpannable(text); 3122 } else if (!(text instanceof CharWrapper)) { 3123 text = TextUtils.stringOrSpannedString(text); 3124 } 3125 3126 if (mAutoLinkMask != 0) { 3127 Spannable s2; 3128 3129 if (type == BufferType.EDITABLE || text instanceof Spannable) { 3130 s2 = (Spannable) text; 3131 } else { 3132 s2 = mSpannableFactory.newSpannable(text); 3133 } 3134 3135 if (Linkify.addLinks(s2, mAutoLinkMask)) { 3136 text = s2; 3137 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 3138 3139 /* 3140 * We must go ahead and set the text before changing the 3141 * movement method, because setMovementMethod() may call 3142 * setText() again to try to upgrade the buffer type. 3143 */ 3144 mText = text; 3145 3146 // Do not change the movement method for text that support text selection as it 3147 // would prevent an arbitrary cursor displacement. 3148 if (mLinksClickable && !textCanBeSelected()) { 3149 setMovementMethod(LinkMovementMethod.getInstance()); 3150 } 3151 } 3152 } 3153 3154 mBufferType = type; 3155 mText = text; 3156 3157 if (mTransformation == null) { 3158 mTransformed = text; 3159 } else { 3160 mTransformed = mTransformation.getTransformation(text, this); 3161 } 3162 3163 final int textLength = text.length(); 3164 3165 if (text instanceof Spannable && !mAllowTransformationLengthChange) { 3166 Spannable sp = (Spannable) text; 3167 3168 // Remove any ChangeWatchers that might have come 3169 // from other TextViews. 3170 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 3171 final int count = watchers.length; 3172 for (int i = 0; i < count; i++) 3173 sp.removeSpan(watchers[i]); 3174 3175 if (mChangeWatcher == null) 3176 mChangeWatcher = new ChangeWatcher(); 3177 3178 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 3179 (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 3180 3181 if (mInput != null) { 3182 sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 3183 } 3184 3185 if (mTransformation != null) { 3186 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 3187 } 3188 3189 if (mMovement != null) { 3190 mMovement.initialize(this, (Spannable) text); 3191 3192 /* 3193 * Initializing the movement method will have set the 3194 * selection, so reset mSelectionMoved to keep that from 3195 * interfering with the normal on-focus selection-setting. 3196 */ 3197 mSelectionMoved = false; 3198 } 3199 } 3200 3201 if (mLayout != null) { 3202 checkForRelayout(); 3203 } 3204 3205 sendOnTextChanged(text, 0, oldlen, textLength); 3206 onTextChanged(text, 0, oldlen, textLength); 3207 3208 if (needEditableForNotification) { 3209 sendAfterTextChanged((Editable) text); 3210 } 3211 3212 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 3213 prepareCursorControllers(); 3214 } 3215 3216 /** 3217 * Sets the TextView to display the specified slice of the specified 3218 * char array. You must promise that you will not change the contents 3219 * of the array except for right before another call to setText(), 3220 * since the TextView has no way to know that the text 3221 * has changed and that it needs to invalidate and re-layout. 3222 */ 3223 public final void setText(char[] text, int start, int len) { 3224 int oldlen = 0; 3225 3226 if (start < 0 || len < 0 || start + len > text.length) { 3227 throw new IndexOutOfBoundsException(start + ", " + len); 3228 } 3229 3230 /* 3231 * We must do the before-notification here ourselves because if 3232 * the old text is a CharWrapper we destroy it before calling 3233 * into the normal path. 3234 */ 3235 if (mText != null) { 3236 oldlen = mText.length(); 3237 sendBeforeTextChanged(mText, 0, oldlen, len); 3238 } else { 3239 sendBeforeTextChanged("", 0, 0, len); 3240 } 3241 3242 if (mCharWrapper == null) { 3243 mCharWrapper = new CharWrapper(text, start, len); 3244 } else { 3245 mCharWrapper.set(text, start, len); 3246 } 3247 3248 setText(mCharWrapper, mBufferType, false, oldlen); 3249 } 3250 3251 private static class CharWrapper implements CharSequence, GetChars, GraphicsOperations { 3252 private char[] mChars; 3253 private int mStart, mLength; 3254 3255 public CharWrapper(char[] chars, int start, int len) { 3256 mChars = chars; 3257 mStart = start; 3258 mLength = len; 3259 } 3260 3261 /* package */ void set(char[] chars, int start, int len) { 3262 mChars = chars; 3263 mStart = start; 3264 mLength = len; 3265 } 3266 3267 public int length() { 3268 return mLength; 3269 } 3270 3271 public char charAt(int off) { 3272 return mChars[off + mStart]; 3273 } 3274 3275 @Override 3276 public String toString() { 3277 return new String(mChars, mStart, mLength); 3278 } 3279 3280 public CharSequence subSequence(int start, int end) { 3281 if (start < 0 || end < 0 || start > mLength || end > mLength) { 3282 throw new IndexOutOfBoundsException(start + ", " + end); 3283 } 3284 3285 return new String(mChars, start + mStart, end - start); 3286 } 3287 3288 public void getChars(int start, int end, char[] buf, int off) { 3289 if (start < 0 || end < 0 || start > mLength || end > mLength) { 3290 throw new IndexOutOfBoundsException(start + ", " + end); 3291 } 3292 3293 System.arraycopy(mChars, start + mStart, buf, off, end - start); 3294 } 3295 3296 public void drawText(Canvas c, int start, int end, 3297 float x, float y, Paint p) { 3298 c.drawText(mChars, start + mStart, end - start, x, y, p); 3299 } 3300 3301 public void drawTextRun(Canvas c, int start, int end, 3302 int contextStart, int contextEnd, float x, float y, int flags, Paint p) { 3303 int count = end - start; 3304 int contextCount = contextEnd - contextStart; 3305 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 3306 contextCount, x, y, flags, p); 3307 } 3308 3309 public float measureText(int start, int end, Paint p) { 3310 return p.measureText(mChars, start + mStart, end - start); 3311 } 3312 3313 public int getTextWidths(int start, int end, float[] widths, Paint p) { 3314 return p.getTextWidths(mChars, start + mStart, end - start, widths); 3315 } 3316 3317 public float getTextRunAdvances(int start, int end, int contextStart, 3318 int contextEnd, int flags, float[] advances, int advancesIndex, 3319 Paint p) { 3320 int count = end - start; 3321 int contextCount = contextEnd - contextStart; 3322 return p.getTextRunAdvances(mChars, start + mStart, count, 3323 contextStart + mStart, contextCount, flags, advances, 3324 advancesIndex); 3325 } 3326 3327 public float getTextRunAdvances(int start, int end, int contextStart, 3328 int contextEnd, int flags, float[] advances, int advancesIndex, 3329 Paint p, int reserved) { 3330 int count = end - start; 3331 int contextCount = contextEnd - contextStart; 3332 return p.getTextRunAdvances(mChars, start + mStart, count, 3333 contextStart + mStart, contextCount, flags, advances, 3334 advancesIndex, reserved); 3335 } 3336 3337 public int getTextRunCursor(int contextStart, int contextEnd, int flags, 3338 int offset, int cursorOpt, Paint p) { 3339 int contextCount = contextEnd - contextStart; 3340 return p.getTextRunCursor(mChars, contextStart + mStart, 3341 contextCount, flags, offset + mStart, cursorOpt); 3342 } 3343 } 3344 3345 /** 3346 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 3347 * except that the cursor position (if any) is retained in the new text. 3348 * 3349 * @see #setText(CharSequence, android.widget.TextView.BufferType) 3350 */ 3351 public final void setTextKeepState(CharSequence text, BufferType type) { 3352 int start = getSelectionStart(); 3353 int end = getSelectionEnd(); 3354 int len = text.length(); 3355 3356 setText(text, type); 3357 3358 if (start >= 0 || end >= 0) { 3359 if (mText instanceof Spannable) { 3360 Selection.setSelection((Spannable) mText, 3361 Math.max(0, Math.min(start, len)), 3362 Math.max(0, Math.min(end, len))); 3363 } 3364 } 3365 } 3366 3367 @android.view.RemotableViewMethod 3368 public final void setText(int resid) { 3369 setText(getContext().getResources().getText(resid)); 3370 } 3371 3372 public final void setText(int resid, BufferType type) { 3373 setText(getContext().getResources().getText(resid), type); 3374 } 3375 3376 /** 3377 * Sets the text to be displayed when the text of the TextView is empty. 3378 * Null means to use the normal empty text. The hint does not currently 3379 * participate in determining the size of the view. 3380 * 3381 * @attr ref android.R.styleable#TextView_hint 3382 */ 3383 @android.view.RemotableViewMethod 3384 public final void setHint(CharSequence hint) { 3385 mHint = TextUtils.stringOrSpannedString(hint); 3386 3387 if (mLayout != null) { 3388 checkForRelayout(); 3389 } 3390 3391 if (mText.length() == 0) { 3392 invalidate(); 3393 } 3394 } 3395 3396 /** 3397 * Sets the text to be displayed when the text of the TextView is empty, 3398 * from a resource. 3399 * 3400 * @attr ref android.R.styleable#TextView_hint 3401 */ 3402 @android.view.RemotableViewMethod 3403 public final void setHint(int resid) { 3404 setHint(getContext().getResources().getText(resid)); 3405 } 3406 3407 /** 3408 * Returns the hint that is displayed when the text of the TextView 3409 * is empty. 3410 * 3411 * @attr ref android.R.styleable#TextView_hint 3412 */ 3413 @ViewDebug.CapturedViewProperty 3414 public CharSequence getHint() { 3415 return mHint; 3416 } 3417 3418 private static boolean isMultilineInputType(int type) { 3419 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 3420 (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 3421 } 3422 3423 /** 3424 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 3425 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 3426 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 3427 * then a soft keyboard will not be displayed for this text view. 3428 * 3429 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 3430 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 3431 * type. 3432 * 3433 * @see #getInputType() 3434 * @see #setRawInputType(int) 3435 * @see android.text.InputType 3436 * @attr ref android.R.styleable#TextView_inputType 3437 */ 3438 public void setInputType(int type) { 3439 final boolean wasPassword = isPasswordInputType(mInputType); 3440 final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType); 3441 setInputType(type, false); 3442 final boolean isPassword = isPasswordInputType(type); 3443 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 3444 boolean forceUpdate = false; 3445 if (isPassword) { 3446 setTransformationMethod(PasswordTransformationMethod.getInstance()); 3447 setTypefaceByIndex(MONOSPACE, 0); 3448 } else if (isVisiblePassword) { 3449 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3450 forceUpdate = true; 3451 } 3452 setTypefaceByIndex(MONOSPACE, 0); 3453 } else if (wasPassword || wasVisiblePassword) { 3454 // not in password mode, clean up typeface and transformation 3455 setTypefaceByIndex(-1, -1); 3456 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3457 forceUpdate = true; 3458 } 3459 } 3460 3461 boolean singleLine = !isMultilineInputType(type); 3462 3463 // We need to update the single line mode if it has changed or we 3464 // were previously in password mode. 3465 if (mSingleLine != singleLine || forceUpdate) { 3466 // Change single line mode, but only change the transformation if 3467 // we are not in password mode. 3468 applySingleLine(singleLine, !isPassword, true); 3469 } 3470 3471 InputMethodManager imm = InputMethodManager.peekInstance(); 3472 if (imm != null) imm.restartInput(this); 3473 } 3474 3475 /** 3476 * It would be better to rely on the input type for everything. A password inputType should have 3477 * a password transformation. We should hence use isPasswordInputType instead of this method. 3478 * 3479 * We should: 3480 * - Call setInputType in setKeyListener instead of changing the input type directly (which 3481 * would install the correct transformation). 3482 * - Refuse the installation of a non-password transformation in setTransformation if the input 3483 * type is password. 3484 * 3485 * However, this is like this for legacy reasons and we cannot break existing apps. This method 3486 * is useful since it matches what the user can see (obfuscated text or not). 3487 * 3488 * @return true if the current transformation method is of the password type. 3489 */ 3490 private boolean hasPasswordTransformationMethod() { 3491 return mTransformation instanceof PasswordTransformationMethod; 3492 } 3493 3494 private static boolean isPasswordInputType(int inputType) { 3495 final int variation = 3496 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3497 return variation 3498 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 3499 || variation 3500 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 3501 || variation 3502 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 3503 } 3504 3505 private static boolean isVisiblePasswordInputType(int inputType) { 3506 final int variation = 3507 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3508 return variation 3509 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 3510 } 3511 3512 /** 3513 * Directly change the content type integer of the text view, without 3514 * modifying any other state. 3515 * @see #setInputType(int) 3516 * @see android.text.InputType 3517 * @attr ref android.R.styleable#TextView_inputType 3518 */ 3519 public void setRawInputType(int type) { 3520 mInputType = type; 3521 } 3522 3523 private void setInputType(int type, boolean direct) { 3524 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 3525 KeyListener input; 3526 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 3527 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 3528 TextKeyListener.Capitalize cap; 3529 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 3530 cap = TextKeyListener.Capitalize.CHARACTERS; 3531 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 3532 cap = TextKeyListener.Capitalize.WORDS; 3533 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 3534 cap = TextKeyListener.Capitalize.SENTENCES; 3535 } else { 3536 cap = TextKeyListener.Capitalize.NONE; 3537 } 3538 input = TextKeyListener.getInstance(autotext, cap); 3539 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 3540 input = DigitsKeyListener.getInstance( 3541 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 3542 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 3543 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 3544 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 3545 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 3546 input = DateKeyListener.getInstance(); 3547 break; 3548 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 3549 input = TimeKeyListener.getInstance(); 3550 break; 3551 default: 3552 input = DateTimeKeyListener.getInstance(); 3553 break; 3554 } 3555 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 3556 input = DialerKeyListener.getInstance(); 3557 } else { 3558 input = TextKeyListener.getInstance(); 3559 } 3560 setRawInputType(type); 3561 if (direct) mInput = input; 3562 else { 3563 setKeyListenerOnly(input); 3564 } 3565 } 3566 3567 /** 3568 * Get the type of the content. 3569 * 3570 * @see #setInputType(int) 3571 * @see android.text.InputType 3572 */ 3573 public int getInputType() { 3574 return mInputType; 3575 } 3576 3577 /** 3578 * Change the editor type integer associated with the text view, which 3579 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3580 * has focus. 3581 * @see #getImeOptions 3582 * @see android.view.inputmethod.EditorInfo 3583 * @attr ref android.R.styleable#TextView_imeOptions 3584 */ 3585 public void setImeOptions(int imeOptions) { 3586 if (mInputContentType == null) { 3587 mInputContentType = new InputContentType(); 3588 } 3589 mInputContentType.imeOptions = imeOptions; 3590 } 3591 3592 /** 3593 * Get the type of the IME editor. 3594 * 3595 * @see #setImeOptions(int) 3596 * @see android.view.inputmethod.EditorInfo 3597 */ 3598 public int getImeOptions() { 3599 return mInputContentType != null 3600 ? mInputContentType.imeOptions : EditorInfo.IME_NULL; 3601 } 3602 3603 /** 3604 * Change the custom IME action associated with the text view, which 3605 * will be reported to an IME with {@link EditorInfo#actionLabel} 3606 * and {@link EditorInfo#actionId} when it has focus. 3607 * @see #getImeActionLabel 3608 * @see #getImeActionId 3609 * @see android.view.inputmethod.EditorInfo 3610 * @attr ref android.R.styleable#TextView_imeActionLabel 3611 * @attr ref android.R.styleable#TextView_imeActionId 3612 */ 3613 public void setImeActionLabel(CharSequence label, int actionId) { 3614 if (mInputContentType == null) { 3615 mInputContentType = new InputContentType(); 3616 } 3617 mInputContentType.imeActionLabel = label; 3618 mInputContentType.imeActionId = actionId; 3619 } 3620 3621 /** 3622 * Get the IME action label previous set with {@link #setImeActionLabel}. 3623 * 3624 * @see #setImeActionLabel 3625 * @see android.view.inputmethod.EditorInfo 3626 */ 3627 public CharSequence getImeActionLabel() { 3628 return mInputContentType != null 3629 ? mInputContentType.imeActionLabel : null; 3630 } 3631 3632 /** 3633 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3634 * 3635 * @see #setImeActionLabel 3636 * @see android.view.inputmethod.EditorInfo 3637 */ 3638 public int getImeActionId() { 3639 return mInputContentType != null 3640 ? mInputContentType.imeActionId : 0; 3641 } 3642 3643 /** 3644 * Set a special listener to be called when an action is performed 3645 * on the text view. This will be called when the enter key is pressed, 3646 * or when an action supplied to the IME is selected by the user. Setting 3647 * this means that the normal hard key event will not insert a newline 3648 * into the text view, even if it is multi-line; holding down the ALT 3649 * modifier will, however, allow the user to insert a newline character. 3650 */ 3651 public void setOnEditorActionListener(OnEditorActionListener l) { 3652 if (mInputContentType == null) { 3653 mInputContentType = new InputContentType(); 3654 } 3655 mInputContentType.onEditorActionListener = l; 3656 } 3657 3658 /** 3659 * Called when an attached input method calls 3660 * {@link InputConnection#performEditorAction(int) 3661 * InputConnection.performEditorAction()} 3662 * for this text view. The default implementation will call your action 3663 * listener supplied to {@link #setOnEditorActionListener}, or perform 3664 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3665 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 3666 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 3667 * EditorInfo.IME_ACTION_DONE}. 3668 * 3669 * <p>For backwards compatibility, if no IME options have been set and the 3670 * text view would not normally advance focus on enter, then 3671 * the NEXT and DONE actions received here will be turned into an enter 3672 * key down/up pair to go through the normal key handling. 3673 * 3674 * @param actionCode The code of the action being performed. 3675 * 3676 * @see #setOnEditorActionListener 3677 */ 3678 public void onEditorAction(int actionCode) { 3679 final InputContentType ict = mInputContentType; 3680 if (ict != null) { 3681 if (ict.onEditorActionListener != null) { 3682 if (ict.onEditorActionListener.onEditorAction(this, 3683 actionCode, null)) { 3684 return; 3685 } 3686 } 3687 3688 // This is the handling for some default action. 3689 // Note that for backwards compatibility we don't do this 3690 // default handling if explicit ime options have not been given, 3691 // instead turning this into the normal enter key codes that an 3692 // app may be expecting. 3693 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3694 View v = focusSearch(FOCUS_DOWN); 3695 if (v != null) { 3696 if (!v.requestFocus(FOCUS_DOWN)) { 3697 throw new IllegalStateException("focus search returned a view " + 3698 "that wasn't able to take focus!"); 3699 } 3700 } 3701 return; 3702 3703 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 3704 View v = focusSearch(FOCUS_UP); 3705 if (v != null) { 3706 if (!v.requestFocus(FOCUS_UP)) { 3707 throw new IllegalStateException("focus search returned a view " + 3708 "that wasn't able to take focus!"); 3709 } 3710 } 3711 return; 3712 3713 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3714 InputMethodManager imm = InputMethodManager.peekInstance(); 3715 if (imm != null && imm.isActive(this)) { 3716 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3717 } 3718 return; 3719 } 3720 } 3721 3722 Handler h = getHandler(); 3723 if (h != null) { 3724 long eventTime = SystemClock.uptimeMillis(); 3725 h.sendMessage(h.obtainMessage(ViewRootImpl.DISPATCH_KEY_FROM_IME, 3726 new KeyEvent(eventTime, eventTime, 3727 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 3728 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3729 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3730 | KeyEvent.FLAG_EDITOR_ACTION))); 3731 h.sendMessage(h.obtainMessage(ViewRootImpl.DISPATCH_KEY_FROM_IME, 3732 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3733 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 3734 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3735 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3736 | KeyEvent.FLAG_EDITOR_ACTION))); 3737 } 3738 } 3739 3740 /** 3741 * Set the private content type of the text, which is the 3742 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3743 * field that will be filled in when creating an input connection. 3744 * 3745 * @see #getPrivateImeOptions() 3746 * @see EditorInfo#privateImeOptions 3747 * @attr ref android.R.styleable#TextView_privateImeOptions 3748 */ 3749 public void setPrivateImeOptions(String type) { 3750 if (mInputContentType == null) mInputContentType = new InputContentType(); 3751 mInputContentType.privateImeOptions = type; 3752 } 3753 3754 /** 3755 * Get the private type of the content. 3756 * 3757 * @see #setPrivateImeOptions(String) 3758 * @see EditorInfo#privateImeOptions 3759 */ 3760 public String getPrivateImeOptions() { 3761 return mInputContentType != null 3762 ? mInputContentType.privateImeOptions : null; 3763 } 3764 3765 /** 3766 * Set the extra input data of the text, which is the 3767 * {@link EditorInfo#extras TextBoxAttribute.extras} 3768 * Bundle that will be filled in when creating an input connection. The 3769 * given integer is the resource ID of an XML resource holding an 3770 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3771 * 3772 * @see #getInputExtras(boolean) 3773 * @see EditorInfo#extras 3774 * @attr ref android.R.styleable#TextView_editorExtras 3775 */ 3776 public void setInputExtras(int xmlResId) 3777 throws XmlPullParserException, IOException { 3778 XmlResourceParser parser = getResources().getXml(xmlResId); 3779 if (mInputContentType == null) mInputContentType = new InputContentType(); 3780 mInputContentType.extras = new Bundle(); 3781 getResources().parseBundleExtras(parser, mInputContentType.extras); 3782 } 3783 3784 /** 3785 * Retrieve the input extras currently associated with the text view, which 3786 * can be viewed as well as modified. 3787 * 3788 * @param create If true, the extras will be created if they don't already 3789 * exist. Otherwise, null will be returned if none have been created. 3790 * @see #setInputExtras(int) 3791 * @see EditorInfo#extras 3792 * @attr ref android.R.styleable#TextView_editorExtras 3793 */ 3794 public Bundle getInputExtras(boolean create) { 3795 if (mInputContentType == null) { 3796 if (!create) return null; 3797 mInputContentType = new InputContentType(); 3798 } 3799 if (mInputContentType.extras == null) { 3800 if (!create) return null; 3801 mInputContentType.extras = new Bundle(); 3802 } 3803 return mInputContentType.extras; 3804 } 3805 3806 /** 3807 * Returns the error message that was set to be displayed with 3808 * {@link #setError}, or <code>null</code> if no error was set 3809 * or if it the error was cleared by the widget after user input. 3810 */ 3811 public CharSequence getError() { 3812 return mError; 3813 } 3814 3815 /** 3816 * Sets the right-hand compound drawable of the TextView to the "error" 3817 * icon and sets an error message that will be displayed in a popup when 3818 * the TextView has focus. The icon and error message will be reset to 3819 * null when any key events cause changes to the TextView's text. If the 3820 * <code>error</code> is <code>null</code>, the error message and icon 3821 * will be cleared. 3822 */ 3823 @android.view.RemotableViewMethod 3824 public void setError(CharSequence error) { 3825 if (error == null) { 3826 setError(null, null); 3827 } else { 3828 Drawable dr = getContext().getResources(). 3829 getDrawable(com.android.internal.R.drawable.indicator_input_error); 3830 3831 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3832 setError(error, dr); 3833 } 3834 } 3835 3836 /** 3837 * Sets the right-hand compound drawable of the TextView to the specified 3838 * icon and sets an error message that will be displayed in a popup when 3839 * the TextView has focus. The icon and error message will be reset to 3840 * null when any key events cause changes to the TextView's text. The 3841 * drawable must already have had {@link Drawable#setBounds} set on it. 3842 * If the <code>error</code> is <code>null</code>, the error message will 3843 * be cleared (and you should provide a <code>null</code> icon as well). 3844 */ 3845 public void setError(CharSequence error, Drawable icon) { 3846 error = TextUtils.stringOrSpannedString(error); 3847 3848 mError = error; 3849 mErrorWasChanged = true; 3850 final Drawables dr = mDrawables; 3851 if (dr != null) { 3852 switch (getResolvedLayoutDirection()) { 3853 default: 3854 case LAYOUT_DIRECTION_LTR: 3855 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, icon, 3856 dr.mDrawableBottom); 3857 break; 3858 case LAYOUT_DIRECTION_RTL: 3859 setCompoundDrawables(icon, dr.mDrawableTop, dr.mDrawableRight, 3860 dr.mDrawableBottom); 3861 break; 3862 } 3863 } else { 3864 setCompoundDrawables(null, null, icon, null); 3865 } 3866 3867 if (error == null) { 3868 if (mPopup != null) { 3869 if (mPopup.isShowing()) { 3870 mPopup.dismiss(); 3871 } 3872 3873 mPopup = null; 3874 } 3875 } else { 3876 if (isFocused()) { 3877 showError(); 3878 } 3879 } 3880 } 3881 3882 private void showError() { 3883 if (getWindowToken() == null) { 3884 mShowErrorAfterAttach = true; 3885 return; 3886 } 3887 3888 if (mPopup == null) { 3889 LayoutInflater inflater = LayoutInflater.from(getContext()); 3890 final TextView err = (TextView) inflater.inflate( 3891 com.android.internal.R.layout.textview_hint, null); 3892 3893 final float scale = getResources().getDisplayMetrics().density; 3894 mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), (int) (50 * scale + 0.5f)); 3895 mPopup.setFocusable(false); 3896 // The user is entering text, so the input method is needed. We 3897 // don't want the popup to be displayed on top of it. 3898 mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 3899 } 3900 3901 TextView tv = (TextView) mPopup.getContentView(); 3902 chooseSize(mPopup, mError, tv); 3903 tv.setText(mError); 3904 3905 mPopup.showAsDropDown(this, getErrorX(), getErrorY()); 3906 mPopup.fixDirection(mPopup.isAboveAnchor()); 3907 } 3908 3909 private static class ErrorPopup extends PopupWindow { 3910 private boolean mAbove = false; 3911 private final TextView mView; 3912 private int mPopupInlineErrorBackgroundId = 0; 3913 private int mPopupInlineErrorAboveBackgroundId = 0; 3914 3915 ErrorPopup(TextView v, int width, int height) { 3916 super(v, width, height); 3917 mView = v; 3918 // Make sure the TextView has a background set as it will be used the first time it is 3919 // shown and positionned. Initialized with below background, which should have 3920 // dimensions identical to the above version for this to work (and is more likely). 3921 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3922 com.android.internal.R.styleable.Theme_errorMessageBackground); 3923 mView.setBackgroundResource(mPopupInlineErrorBackgroundId); 3924 } 3925 3926 void fixDirection(boolean above) { 3927 mAbove = above; 3928 3929 if (above) { 3930 mPopupInlineErrorAboveBackgroundId = 3931 getResourceId(mPopupInlineErrorAboveBackgroundId, 3932 com.android.internal.R.styleable.Theme_errorMessageAboveBackground); 3933 } else { 3934 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3935 com.android.internal.R.styleable.Theme_errorMessageBackground); 3936 } 3937 3938 mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId : 3939 mPopupInlineErrorBackgroundId); 3940 } 3941 3942 private int getResourceId(int currentId, int index) { 3943 if (currentId == 0) { 3944 TypedArray styledAttributes = mView.getContext().obtainStyledAttributes( 3945 R.styleable.Theme); 3946 currentId = styledAttributes.getResourceId(index, 0); 3947 styledAttributes.recycle(); 3948 } 3949 return currentId; 3950 } 3951 3952 @Override 3953 public void update(int x, int y, int w, int h, boolean force) { 3954 super.update(x, y, w, h, force); 3955 3956 boolean above = isAboveAnchor(); 3957 if (above != mAbove) { 3958 fixDirection(above); 3959 } 3960 } 3961 } 3962 3963 /** 3964 * Returns the Y offset to make the pointy top of the error point 3965 * at the middle of the error icon. 3966 */ 3967 private int getErrorX() { 3968 /* 3969 * The "25" is the distance between the point and the right edge 3970 * of the background 3971 */ 3972 final float scale = getResources().getDisplayMetrics().density; 3973 3974 final Drawables dr = mDrawables; 3975 return getWidth() - mPopup.getWidth() - getPaddingRight() - 3976 (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 3977 } 3978 3979 /** 3980 * Returns the Y offset to make the pointy top of the error point 3981 * at the bottom of the error icon. 3982 */ 3983 private int getErrorY() { 3984 /* 3985 * Compound, not extended, because the icon is not clipped 3986 * if the text height is smaller. 3987 */ 3988 final int compoundPaddingTop = getCompoundPaddingTop(); 3989 int vspace = mBottom - mTop - getCompoundPaddingBottom() - compoundPaddingTop; 3990 3991 final Drawables dr = mDrawables; 3992 int icontop = compoundPaddingTop + 3993 (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 3994 3995 /* 3996 * The "2" is the distance between the point and the top edge 3997 * of the background. 3998 */ 3999 final float scale = getResources().getDisplayMetrics().density; 4000 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) - getHeight() - 4001 (int) (2 * scale + 0.5f); 4002 } 4003 4004 private void hideError() { 4005 if (mPopup != null) { 4006 if (mPopup.isShowing()) { 4007 mPopup.dismiss(); 4008 } 4009 } 4010 4011 mShowErrorAfterAttach = false; 4012 } 4013 4014 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 4015 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 4016 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 4017 4018 /* 4019 * Figure out how big the text would be if we laid it out to the 4020 * full width of this view minus the border. 4021 */ 4022 int cap = getWidth() - wid; 4023 if (cap < 0) { 4024 cap = 200; // We must not be measured yet -- setFrame() will fix it. 4025 } 4026 4027 Layout l = new StaticLayout(text, tv.getPaint(), cap, 4028 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 4029 float max = 0; 4030 for (int i = 0; i < l.getLineCount(); i++) { 4031 max = Math.max(max, l.getLineWidth(i)); 4032 } 4033 4034 /* 4035 * Now set the popup size to be big enough for the text plus the border. 4036 */ 4037 pop.setWidth(wid + (int) Math.ceil(max)); 4038 pop.setHeight(ht + l.getHeight()); 4039 } 4040 4041 4042 @Override 4043 protected boolean setFrame(int l, int t, int r, int b) { 4044 boolean result = super.setFrame(l, t, r, b); 4045 4046 if (mPopup != null) { 4047 TextView tv = (TextView) mPopup.getContentView(); 4048 chooseSize(mPopup, mError, tv); 4049 mPopup.update(this, getErrorX(), getErrorY(), 4050 mPopup.getWidth(), mPopup.getHeight()); 4051 } 4052 4053 restartMarqueeIfNeeded(); 4054 4055 return result; 4056 } 4057 4058 private void restartMarqueeIfNeeded() { 4059 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4060 mRestartMarquee = false; 4061 startMarquee(); 4062 } 4063 } 4064 4065 /** 4066 * Sets the list of input filters that will be used if the buffer is 4067 * Editable. Has no effect otherwise. 4068 * 4069 * @attr ref android.R.styleable#TextView_maxLength 4070 */ 4071 public void setFilters(InputFilter[] filters) { 4072 if (filters == null) { 4073 throw new IllegalArgumentException(); 4074 } 4075 4076 mFilters = filters; 4077 4078 if (mText instanceof Editable) { 4079 setFilters((Editable) mText, filters); 4080 } 4081 } 4082 4083 /** 4084 * Sets the list of input filters on the specified Editable, 4085 * and includes mInput in the list if it is an InputFilter. 4086 */ 4087 private void setFilters(Editable e, InputFilter[] filters) { 4088 if (mInput instanceof InputFilter) { 4089 InputFilter[] nf = new InputFilter[filters.length + 1]; 4090 4091 System.arraycopy(filters, 0, nf, 0, filters.length); 4092 nf[filters.length] = (InputFilter) mInput; 4093 4094 e.setFilters(nf); 4095 } else { 4096 e.setFilters(filters); 4097 } 4098 } 4099 4100 /** 4101 * Returns the current list of input filters. 4102 */ 4103 public InputFilter[] getFilters() { 4104 return mFilters; 4105 } 4106 4107 ///////////////////////////////////////////////////////////////////////// 4108 4109 private int getVerticalOffset(boolean forceNormal) { 4110 int voffset = 0; 4111 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4112 4113 Layout l = mLayout; 4114 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4115 l = mHintLayout; 4116 } 4117 4118 if (gravity != Gravity.TOP) { 4119 int boxht; 4120 4121 if (l == mHintLayout) { 4122 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 4123 getCompoundPaddingBottom(); 4124 } else { 4125 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 4126 getExtendedPaddingBottom(); 4127 } 4128 int textht = l.getHeight(); 4129 4130 if (textht < boxht) { 4131 if (gravity == Gravity.BOTTOM) 4132 voffset = boxht - textht; 4133 else // (gravity == Gravity.CENTER_VERTICAL) 4134 voffset = (boxht - textht) >> 1; 4135 } 4136 } 4137 return voffset; 4138 } 4139 4140 private int getBottomVerticalOffset(boolean forceNormal) { 4141 int voffset = 0; 4142 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4143 4144 Layout l = mLayout; 4145 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4146 l = mHintLayout; 4147 } 4148 4149 if (gravity != Gravity.BOTTOM) { 4150 int boxht; 4151 4152 if (l == mHintLayout) { 4153 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 4154 getCompoundPaddingBottom(); 4155 } else { 4156 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 4157 getExtendedPaddingBottom(); 4158 } 4159 int textht = l.getHeight(); 4160 4161 if (textht < boxht) { 4162 if (gravity == Gravity.TOP) 4163 voffset = boxht - textht; 4164 else // (gravity == Gravity.CENTER_VERTICAL) 4165 voffset = (boxht - textht) >> 1; 4166 } 4167 } 4168 return voffset; 4169 } 4170 4171 private void invalidateCursorPath() { 4172 if (mHighlightPathBogus) { 4173 invalidateCursor(); 4174 } else { 4175 final int horizontalPadding = getCompoundPaddingLeft(); 4176 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4177 4178 if (mCursorCount == 0) { 4179 synchronized (sTempRect) { 4180 /* 4181 * The reason for this concern about the thickness of the 4182 * cursor and doing the floor/ceil on the coordinates is that 4183 * some EditTexts (notably textfields in the Browser) have 4184 * anti-aliased text where not all the characters are 4185 * necessarily at integer-multiple locations. This should 4186 * make sure the entire cursor gets invalidated instead of 4187 * sometimes missing half a pixel. 4188 */ 4189 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 4190 if (thick < 1.0f) { 4191 thick = 1.0f; 4192 } 4193 4194 thick /= 2.0f; 4195 4196 mHighlightPath.computeBounds(sTempRect, false); 4197 4198 invalidate((int) FloatMath.floor(horizontalPadding + sTempRect.left - thick), 4199 (int) FloatMath.floor(verticalPadding + sTempRect.top - thick), 4200 (int) FloatMath.ceil(horizontalPadding + sTempRect.right + thick), 4201 (int) FloatMath.ceil(verticalPadding + sTempRect.bottom + thick)); 4202 } 4203 } else { 4204 for (int i = 0; i < mCursorCount; i++) { 4205 Rect bounds = mCursorDrawable[i].getBounds(); 4206 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 4207 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 4208 } 4209 } 4210 } 4211 } 4212 4213 private void invalidateCursor() { 4214 int where = getSelectionEnd(); 4215 4216 invalidateCursor(where, where, where); 4217 } 4218 4219 private void invalidateCursor(int a, int b, int c) { 4220 if (mLayout == null) { 4221 invalidate(); 4222 } else { 4223 if (a >= 0 || b >= 0 || c >= 0) { 4224 int first = Math.min(Math.min(a, b), c); 4225 int last = Math.max(Math.max(a, b), c); 4226 4227 int line = mLayout.getLineForOffset(first); 4228 int top = mLayout.getLineTop(line); 4229 4230 // This is ridiculous, but the descent from the line above 4231 // can hang down into the line we really want to redraw, 4232 // so we have to invalidate part of the line above to make 4233 // sure everything that needs to be redrawn really is. 4234 // (But not the whole line above, because that would cause 4235 // the same problem with the descenders on the line above it!) 4236 if (line > 0) { 4237 top -= mLayout.getLineDescent(line - 1); 4238 } 4239 4240 int line2; 4241 4242 if (first == last) 4243 line2 = line; 4244 else 4245 line2 = mLayout.getLineForOffset(last); 4246 4247 int bottom = mLayout.getLineTop(line2 + 1); 4248 4249 final int horizontalPadding = getCompoundPaddingLeft(); 4250 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4251 4252 // If used, the cursor drawables can have an arbitrary dimension that can go beyond 4253 // the invalidated lines specified above. 4254 for (int i = 0; i < mCursorCount; i++) { 4255 Rect bounds = mCursorDrawable[i].getBounds(); 4256 top = Math.min(top, bounds.top); 4257 bottom = Math.max(bottom, bounds.bottom); 4258 // Horizontal bounds are already full width, no need to update 4259 } 4260 4261 invalidate(horizontalPadding + mScrollX, top + verticalPadding, 4262 horizontalPadding + mScrollX + getWidth() - 4263 getCompoundPaddingLeft() - getCompoundPaddingRight(), 4264 bottom + verticalPadding); 4265 } 4266 } 4267 } 4268 4269 private void registerForPreDraw() { 4270 final ViewTreeObserver observer = getViewTreeObserver(); 4271 4272 if (mPreDrawState == PREDRAW_NOT_REGISTERED) { 4273 observer.addOnPreDrawListener(this); 4274 mPreDrawState = PREDRAW_PENDING; 4275 } else if (mPreDrawState == PREDRAW_DONE) { 4276 mPreDrawState = PREDRAW_PENDING; 4277 } 4278 4279 // else state is PREDRAW_PENDING, so keep waiting. 4280 } 4281 4282 /** 4283 * {@inheritDoc} 4284 */ 4285 public boolean onPreDraw() { 4286 if (mPreDrawState != PREDRAW_PENDING) { 4287 return true; 4288 } 4289 4290 if (mLayout == null) { 4291 assumeLayout(); 4292 } 4293 4294 boolean changed = false; 4295 4296 if (mMovement != null) { 4297 /* This code also provides auto-scrolling when a cursor is moved using a 4298 * CursorController (insertion point or selection limits). 4299 * For selection, ensure start or end is visible depending on controller's state. 4300 */ 4301 int curs = getSelectionEnd(); 4302 // Do not create the controller if it is not already created. 4303 if (mSelectionModifierCursorController != null && 4304 mSelectionModifierCursorController.isSelectionStartDragged()) { 4305 curs = getSelectionStart(); 4306 } 4307 4308 /* 4309 * TODO: This should really only keep the end in view if 4310 * it already was before the text changed. I'm not sure 4311 * of a good way to tell from here if it was. 4312 */ 4313 if (curs < 0 && 4314 (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 4315 curs = mText.length(); 4316 } 4317 4318 if (curs >= 0) { 4319 changed = bringPointIntoView(curs); 4320 } 4321 } else { 4322 changed = bringTextIntoView(); 4323 } 4324 4325 // This has to be checked here since: 4326 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 4327 // a screen rotation) since layout is not yet initialized at that point. 4328 if (mCreatedWithASelection) { 4329 startSelectionActionMode(); 4330 mCreatedWithASelection = false; 4331 } 4332 4333 // Phone specific code (there is no ExtractEditText on tablets). 4334 // ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can 4335 // not be set. Do the test here instead. 4336 if (this instanceof ExtractEditText && hasSelection()) { 4337 startSelectionActionMode(); 4338 } 4339 4340 mPreDrawState = PREDRAW_DONE; 4341 return !changed; 4342 } 4343 4344 @Override 4345 protected void onAttachedToWindow() { 4346 super.onAttachedToWindow(); 4347 4348 mTemporaryDetach = false; 4349 4350 if (mShowErrorAfterAttach) { 4351 showError(); 4352 mShowErrorAfterAttach = false; 4353 } 4354 4355 final ViewTreeObserver observer = getViewTreeObserver(); 4356 // No need to create the controller. 4357 // The get method will add the listener on controller creation. 4358 if (mInsertionPointCursorController != null) { 4359 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 4360 } 4361 if (mSelectionModifierCursorController != null) { 4362 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 4363 } 4364 4365 // Resolve drawables as the layout direction has been resolved 4366 resolveDrawables(); 4367 } 4368 4369 @Override 4370 protected void onDetachedFromWindow() { 4371 super.onDetachedFromWindow(); 4372 4373 final ViewTreeObserver observer = getViewTreeObserver(); 4374 if (mPreDrawState != PREDRAW_NOT_REGISTERED) { 4375 observer.removeOnPreDrawListener(this); 4376 mPreDrawState = PREDRAW_NOT_REGISTERED; 4377 } 4378 4379 if (mError != null) { 4380 hideError(); 4381 } 4382 4383 if (mBlink != null) { 4384 mBlink.removeCallbacks(mBlink); 4385 } 4386 4387 if (mInsertionPointCursorController != null) { 4388 mInsertionPointCursorController.onDetached(); 4389 } 4390 4391 if (mSelectionModifierCursorController != null) { 4392 mSelectionModifierCursorController.onDetached(); 4393 } 4394 4395 hideControllers(); 4396 4397 resetResolvedDrawables(); 4398 } 4399 4400 @Override 4401 protected boolean isPaddingOffsetRequired() { 4402 return mShadowRadius != 0 || mDrawables != null; 4403 } 4404 4405 @Override 4406 protected int getLeftPaddingOffset() { 4407 return getCompoundPaddingLeft() - mPaddingLeft + 4408 (int) Math.min(0, mShadowDx - mShadowRadius); 4409 } 4410 4411 @Override 4412 protected int getTopPaddingOffset() { 4413 return (int) Math.min(0, mShadowDy - mShadowRadius); 4414 } 4415 4416 @Override 4417 protected int getBottomPaddingOffset() { 4418 return (int) Math.max(0, mShadowDy + mShadowRadius); 4419 } 4420 4421 @Override 4422 protected int getRightPaddingOffset() { 4423 return -(getCompoundPaddingRight() - mPaddingRight) + 4424 (int) Math.max(0, mShadowDx + mShadowRadius); 4425 } 4426 4427 @Override 4428 protected boolean verifyDrawable(Drawable who) { 4429 final boolean verified = super.verifyDrawable(who); 4430 if (!verified && mDrawables != null) { 4431 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 4432 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom || 4433 who == mDrawables.mDrawableStart || who == mDrawables.mDrawableEnd; 4434 } 4435 return verified; 4436 } 4437 4438 @Override 4439 public void jumpDrawablesToCurrentState() { 4440 super.jumpDrawablesToCurrentState(); 4441 if (mDrawables != null) { 4442 if (mDrawables.mDrawableLeft != null) { 4443 mDrawables.mDrawableLeft.jumpToCurrentState(); 4444 } 4445 if (mDrawables.mDrawableTop != null) { 4446 mDrawables.mDrawableTop.jumpToCurrentState(); 4447 } 4448 if (mDrawables.mDrawableRight != null) { 4449 mDrawables.mDrawableRight.jumpToCurrentState(); 4450 } 4451 if (mDrawables.mDrawableBottom != null) { 4452 mDrawables.mDrawableBottom.jumpToCurrentState(); 4453 } 4454 if (mDrawables.mDrawableStart != null) { 4455 mDrawables.mDrawableStart.jumpToCurrentState(); 4456 } 4457 if (mDrawables.mDrawableEnd != null) { 4458 mDrawables.mDrawableEnd.jumpToCurrentState(); 4459 } 4460 } 4461 } 4462 4463 @Override 4464 public void invalidateDrawable(Drawable drawable) { 4465 if (verifyDrawable(drawable)) { 4466 final Rect dirty = drawable.getBounds(); 4467 int scrollX = mScrollX; 4468 int scrollY = mScrollY; 4469 4470 // IMPORTANT: The coordinates below are based on the coordinates computed 4471 // for each compound drawable in onDraw(). Make sure to update each section 4472 // accordingly. 4473 final TextView.Drawables drawables = mDrawables; 4474 if (drawables != null) { 4475 if (drawable == drawables.mDrawableLeft) { 4476 final int compoundPaddingTop = getCompoundPaddingTop(); 4477 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4478 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4479 4480 scrollX += mPaddingLeft; 4481 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 4482 } else if (drawable == drawables.mDrawableRight) { 4483 final int compoundPaddingTop = getCompoundPaddingTop(); 4484 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4485 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4486 4487 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 4488 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 4489 } else if (drawable == drawables.mDrawableTop) { 4490 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4491 final int compoundPaddingRight = getCompoundPaddingRight(); 4492 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4493 4494 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 4495 scrollY += mPaddingTop; 4496 } else if (drawable == drawables.mDrawableBottom) { 4497 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4498 final int compoundPaddingRight = getCompoundPaddingRight(); 4499 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4500 4501 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 4502 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 4503 } 4504 } 4505 4506 invalidate(dirty.left + scrollX, dirty.top + scrollY, 4507 dirty.right + scrollX, dirty.bottom + scrollY); 4508 } 4509 } 4510 4511 /** 4512 * @hide 4513 */ 4514 @Override 4515 public int getResolvedLayoutDirection(Drawable who) { 4516 if (who == null) return View.LAYOUT_DIRECTION_LTR; 4517 if (mDrawables != null) { 4518 final Drawables drawables = mDrawables; 4519 if (who == drawables.mDrawableLeft || who == drawables.mDrawableRight || 4520 who == drawables.mDrawableTop || who == drawables.mDrawableBottom || 4521 who == drawables.mDrawableStart || who == drawables.mDrawableEnd) { 4522 return getResolvedLayoutDirection(); 4523 } 4524 } 4525 return super.getResolvedLayoutDirection(who); 4526 } 4527 4528 @Override 4529 protected boolean onSetAlpha(int alpha) { 4530 // Alpha is supported if and only if the drawing can be done in one pass. 4531 // TODO text with spans with a background color currently do not respect this alpha. 4532 if (getBackground() == null) { 4533 mCurrentAlpha = alpha; 4534 final Drawables dr = mDrawables; 4535 if (dr != null) { 4536 if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha); 4537 if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha); 4538 if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha); 4539 if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha); 4540 if (dr.mDrawableStart != null) dr.mDrawableStart.mutate().setAlpha(alpha); 4541 if (dr.mDrawableEnd != null) dr.mDrawableEnd.mutate().setAlpha(alpha); 4542 } 4543 return true; 4544 } 4545 4546 mCurrentAlpha = 255; 4547 return false; 4548 } 4549 4550 /** 4551 * When a TextView is used to display a useful piece of information to the user (such as a 4552 * contact's address), it should be made selectable, so that the user can select and copy this 4553 * content. 4554 * 4555 * Use {@link #setTextIsSelectable(boolean)} or the 4556 * {@link android.R.styleable#TextView_textIsSelectable} XML attribute to make this TextView 4557 * selectable (text is not selectable by default). 4558 * 4559 * Note that this method simply returns the state of this flag. Although this flag has to be set 4560 * in order to select text in non-editable TextView, the content of an {@link EditText} can 4561 * always be selected, independently of the value of this flag. 4562 * 4563 * @return True if the text displayed in this TextView can be selected by the user. 4564 * 4565 * @attr ref android.R.styleable#TextView_textIsSelectable 4566 */ 4567 public boolean isTextSelectable() { 4568 return mTextIsSelectable; 4569 } 4570 4571 /** 4572 * Sets whether or not (default) the content of this view is selectable by the user. 4573 * 4574 * Note that this methods affect the {@link #setFocusable(boolean)}, 4575 * {@link #setFocusableInTouchMode(boolean)} {@link #setClickable(boolean)} and 4576 * {@link #setLongClickable(boolean)} states and you may want to restore these if they were 4577 * customized. 4578 * 4579 * See {@link #isTextSelectable} for details. 4580 * 4581 * @param selectable Whether or not the content of this TextView should be selectable. 4582 */ 4583 public void setTextIsSelectable(boolean selectable) { 4584 if (mTextIsSelectable == selectable) return; 4585 4586 mTextIsSelectable = selectable; 4587 4588 setFocusableInTouchMode(selectable); 4589 setFocusable(selectable); 4590 setClickable(selectable); 4591 setLongClickable(selectable); 4592 4593 // mInputType is already EditorInfo.TYPE_NULL and mInput is null; 4594 4595 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 4596 setText(getText(), selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 4597 4598 // Called by setText above, but safer in case of future code changes 4599 prepareCursorControllers(); 4600 } 4601 4602 @Override 4603 protected int[] onCreateDrawableState(int extraSpace) { 4604 final int[] drawableState; 4605 4606 if (mSingleLine) { 4607 drawableState = super.onCreateDrawableState(extraSpace); 4608 } else { 4609 drawableState = super.onCreateDrawableState(extraSpace + 1); 4610 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 4611 } 4612 4613 if (mTextIsSelectable) { 4614 // Disable pressed state, which was introduced when TextView was made clickable. 4615 // Prevents text color change. 4616 // setClickable(false) would have a similar effect, but it also disables focus changes 4617 // and long press actions, which are both needed by text selection. 4618 final int length = drawableState.length; 4619 for (int i = 0; i < length; i++) { 4620 if (drawableState[i] == R.attr.state_pressed) { 4621 final int[] nonPressedState = new int[length - 1]; 4622 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 4623 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 4624 return nonPressedState; 4625 } 4626 } 4627 } 4628 4629 return drawableState; 4630 } 4631 4632 @Override 4633 protected void onDraw(Canvas canvas) { 4634 if (mPreDrawState == PREDRAW_DONE) { 4635 final ViewTreeObserver observer = getViewTreeObserver(); 4636 observer.removeOnPreDrawListener(this); 4637 mPreDrawState = PREDRAW_NOT_REGISTERED; 4638 } 4639 4640 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return; 4641 4642 restartMarqueeIfNeeded(); 4643 4644 // Draw the background for this view 4645 super.onDraw(canvas); 4646 4647 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4648 final int compoundPaddingTop = getCompoundPaddingTop(); 4649 final int compoundPaddingRight = getCompoundPaddingRight(); 4650 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4651 final int scrollX = mScrollX; 4652 final int scrollY = mScrollY; 4653 final int right = mRight; 4654 final int left = mLeft; 4655 final int bottom = mBottom; 4656 final int top = mTop; 4657 4658 final Drawables dr = mDrawables; 4659 if (dr != null) { 4660 /* 4661 * Compound, not extended, because the icon is not clipped 4662 * if the text height is smaller. 4663 */ 4664 4665 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 4666 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 4667 4668 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4669 // Make sure to update invalidateDrawable() when changing this code. 4670 if (dr.mDrawableLeft != null) { 4671 canvas.save(); 4672 canvas.translate(scrollX + mPaddingLeft, 4673 scrollY + compoundPaddingTop + 4674 (vspace - dr.mDrawableHeightLeft) / 2); 4675 dr.mDrawableLeft.draw(canvas); 4676 canvas.restore(); 4677 } 4678 4679 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4680 // Make sure to update invalidateDrawable() when changing this code. 4681 if (dr.mDrawableRight != null) { 4682 canvas.save(); 4683 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 4684 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 4685 dr.mDrawableRight.draw(canvas); 4686 canvas.restore(); 4687 } 4688 4689 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4690 // Make sure to update invalidateDrawable() when changing this code. 4691 if (dr.mDrawableTop != null) { 4692 canvas.save(); 4693 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 4694 scrollY + mPaddingTop); 4695 dr.mDrawableTop.draw(canvas); 4696 canvas.restore(); 4697 } 4698 4699 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4700 // Make sure to update invalidateDrawable() when changing this code. 4701 if (dr.mDrawableBottom != null) { 4702 canvas.save(); 4703 canvas.translate(scrollX + compoundPaddingLeft + 4704 (hspace - dr.mDrawableWidthBottom) / 2, 4705 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 4706 dr.mDrawableBottom.draw(canvas); 4707 canvas.restore(); 4708 } 4709 } 4710 4711 int color = mCurTextColor; 4712 4713 if (mLayout == null) { 4714 assumeLayout(); 4715 } 4716 4717 Layout layout = mLayout; 4718 int cursorcolor = color; 4719 4720 if (mHint != null && mText.length() == 0) { 4721 if (mHintTextColor != null) { 4722 color = mCurHintTextColor; 4723 } 4724 4725 layout = mHintLayout; 4726 } 4727 4728 mTextPaint.setColor(color); 4729 if (mCurrentAlpha != 255) { 4730 // If set, the alpha will override the color's alpha. Multiply the alphas. 4731 mTextPaint.setAlpha((mCurrentAlpha * Color.alpha(color)) / 255); 4732 } 4733 mTextPaint.drawableState = getDrawableState(); 4734 4735 canvas.save(); 4736 /* Would be faster if we didn't have to do this. Can we chop the 4737 (displayable) text so that we don't need to do this ever? 4738 */ 4739 4740 int extendedPaddingTop = getExtendedPaddingTop(); 4741 int extendedPaddingBottom = getExtendedPaddingBottom(); 4742 4743 float clipLeft = compoundPaddingLeft + scrollX; 4744 float clipTop = extendedPaddingTop + scrollY; 4745 float clipRight = right - left - compoundPaddingRight + scrollX; 4746 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 4747 4748 if (mShadowRadius != 0) { 4749 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4750 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4751 4752 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4753 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4754 } 4755 4756 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4757 4758 int voffsetText = 0; 4759 int voffsetCursor = 0; 4760 4761 // translate in by our padding 4762 { 4763 /* shortcircuit calling getVerticaOffset() */ 4764 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4765 voffsetText = getVerticalOffset(false); 4766 voffsetCursor = getVerticalOffset(true); 4767 } 4768 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4769 } 4770 4771 final int layoutDirection = getResolvedLayoutDirection(); 4772 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 4773 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4774 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4775 (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4776 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4777 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4778 } 4779 4780 if (mMarquee != null && mMarquee.isRunning()) { 4781 canvas.translate(-mMarquee.mScroll, 0.0f); 4782 } 4783 } 4784 4785 Path highlight = null; 4786 int selStart = -1, selEnd = -1; 4787 boolean drawCursor = false; 4788 4789 // If there is no movement method, then there can be no selection. 4790 // Check that first and attempt to skip everything having to do with 4791 // the cursor. 4792 // XXX This is not strictly true -- a program could set the 4793 // selection manually if it really wanted to. 4794 if (mMovement != null && (isFocused() || isPressed())) { 4795 selStart = getSelectionStart(); 4796 selEnd = getSelectionEnd(); 4797 4798 if (selStart >= 0) { 4799 if (mHighlightPath == null) 4800 mHighlightPath = new Path(); 4801 4802 if (selStart == selEnd) { 4803 if (isCursorVisible() && 4804 (SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 4805 if (mHighlightPathBogus) { 4806 mHighlightPath.reset(); 4807 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4808 updateCursorsPositions(); 4809 mHighlightPathBogus = false; 4810 } 4811 4812 // XXX should pass to skin instead of drawing directly 4813 mHighlightPaint.setColor(cursorcolor); 4814 if (mCurrentAlpha != 255) { 4815 mHighlightPaint.setAlpha( 4816 (mCurrentAlpha * Color.alpha(cursorcolor)) / 255); 4817 } 4818 mHighlightPaint.setStyle(Paint.Style.STROKE); 4819 highlight = mHighlightPath; 4820 drawCursor = mCursorCount > 0; 4821 } 4822 } else if (textCanBeSelected()) { 4823 if (mHighlightPathBogus) { 4824 mHighlightPath.reset(); 4825 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4826 mHighlightPathBogus = false; 4827 } 4828 4829 // XXX should pass to skin instead of drawing directly 4830 mHighlightPaint.setColor(mHighlightColor); 4831 if (mCurrentAlpha != 255) { 4832 mHighlightPaint.setAlpha( 4833 (mCurrentAlpha * Color.alpha(mHighlightColor)) / 255); 4834 } 4835 mHighlightPaint.setStyle(Paint.Style.FILL); 4836 4837 highlight = mHighlightPath; 4838 } 4839 } 4840 } 4841 4842 /* Comment out until we decide what to do about animations 4843 boolean isLinearTextOn = false; 4844 if (currentTransformation != null) { 4845 isLinearTextOn = mTextPaint.isLinearTextOn(); 4846 Matrix m = currentTransformation.getMatrix(); 4847 if (!m.isIdentity()) { 4848 // mTextPaint.setLinearTextOn(true); 4849 } 4850 } 4851 */ 4852 4853 final InputMethodState ims = mInputMethodState; 4854 final int cursorOffsetVertical = voffsetCursor - voffsetText; 4855 if (ims != null && ims.mBatchEditNesting == 0) { 4856 InputMethodManager imm = InputMethodManager.peekInstance(); 4857 if (imm != null) { 4858 if (imm.isActive(this)) { 4859 boolean reported = false; 4860 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4861 // We are in extract mode and the content has changed 4862 // in some way... just report complete new text to the 4863 // input method. 4864 reported = reportExtractedText(); 4865 } 4866 if (!reported && highlight != null) { 4867 int candStart = -1; 4868 int candEnd = -1; 4869 if (mText instanceof Spannable) { 4870 Spannable sp = (Spannable)mText; 4871 candStart = EditableInputConnection.getComposingSpanStart(sp); 4872 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 4873 } 4874 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 4875 } 4876 } 4877 4878 if (imm.isWatchingCursor(this) && highlight != null) { 4879 highlight.computeBounds(ims.mTmpRectF, true); 4880 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 4881 4882 canvas.getMatrix().mapPoints(ims.mTmpOffset); 4883 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 4884 4885 ims.mTmpRectF.offset(0, cursorOffsetVertical); 4886 4887 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 4888 (int)(ims.mTmpRectF.top + 0.5), 4889 (int)(ims.mTmpRectF.right + 0.5), 4890 (int)(ims.mTmpRectF.bottom + 0.5)); 4891 4892 imm.updateCursor(this, 4893 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 4894 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 4895 } 4896 } 4897 } 4898 4899 if (mCorrectionHighlighter != null) { 4900 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 4901 } 4902 4903 if (drawCursor) { 4904 drawCursor(canvas, cursorOffsetVertical); 4905 // Rely on the drawable entirely, do not draw the cursor line. 4906 // Has to be done after the IMM related code above which relies on the highlight. 4907 highlight = null; 4908 } 4909 4910 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4911 4912 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 4913 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 4914 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4915 } 4916 4917 /* Comment out until we decide what to do about animations 4918 if (currentTransformation != null) { 4919 mTextPaint.setLinearTextOn(isLinearTextOn); 4920 } 4921 */ 4922 4923 canvas.restore(); 4924 } 4925 4926 private void updateCursorsPositions() { 4927 if (mCursorDrawableRes == 0) { 4928 mCursorCount = 0; 4929 return; 4930 } 4931 4932 final int offset = getSelectionStart(); 4933 final int line = mLayout.getLineForOffset(offset); 4934 final int top = mLayout.getLineTop(line); 4935 final int bottom = mLayout.getLineTop(line + 1); 4936 4937 mCursorCount = mLayout.isLevelBoundary(offset) ? 2 : 1; 4938 4939 int middle = bottom; 4940 if (mCursorCount == 2) { 4941 // Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)} 4942 middle = (top + bottom) >> 1; 4943 } 4944 4945 updateCursorPosition(0, top, middle, mLayout.getPrimaryHorizontal(offset)); 4946 4947 if (mCursorCount == 2) { 4948 updateCursorPosition(1, middle, bottom, mLayout.getSecondaryHorizontal(offset)); 4949 } 4950 } 4951 4952 private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) { 4953 if (mCursorDrawable[cursorIndex] == null) 4954 mCursorDrawable[cursorIndex] = mContext.getResources().getDrawable(mCursorDrawableRes); 4955 4956 if (mTempRect == null) mTempRect = new Rect(); 4957 4958 mCursorDrawable[cursorIndex].getPadding(mTempRect); 4959 final int width = mCursorDrawable[cursorIndex].getIntrinsicWidth(); 4960 horizontal = Math.max(0.5f, horizontal - 0.5f); 4961 final int left = (int) (horizontal) - mTempRect.left; 4962 mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width, 4963 bottom + mTempRect.bottom); 4964 } 4965 4966 private void drawCursor(Canvas canvas, int cursorOffsetVertical) { 4967 final boolean translate = cursorOffsetVertical != 0; 4968 if (translate) canvas.translate(0, cursorOffsetVertical); 4969 for (int i = 0; i < mCursorCount; i++) { 4970 mCursorDrawable[i].draw(canvas); 4971 } 4972 if (translate) canvas.translate(0, -cursorOffsetVertical); 4973 } 4974 4975 @Override 4976 public void getFocusedRect(Rect r) { 4977 if (mLayout == null) { 4978 super.getFocusedRect(r); 4979 return; 4980 } 4981 4982 int selEnd = getSelectionEnd(); 4983 if (selEnd < 0) { 4984 super.getFocusedRect(r); 4985 return; 4986 } 4987 4988 int selStart = getSelectionStart(); 4989 if (selStart < 0 || selStart >= selEnd) { 4990 int line = mLayout.getLineForOffset(selEnd); 4991 r.top = mLayout.getLineTop(line); 4992 r.bottom = mLayout.getLineBottom(line); 4993 r.left = (int) mLayout.getPrimaryHorizontal(selEnd) - 2; 4994 r.right = r.left + 4; 4995 } else { 4996 int lineStart = mLayout.getLineForOffset(selStart); 4997 int lineEnd = mLayout.getLineForOffset(selEnd); 4998 r.top = mLayout.getLineTop(lineStart); 4999 r.bottom = mLayout.getLineBottom(lineEnd); 5000 if (lineStart == lineEnd) { 5001 r.left = (int) mLayout.getPrimaryHorizontal(selStart); 5002 r.right = (int) mLayout.getPrimaryHorizontal(selEnd); 5003 } else { 5004 // Selection extends across multiple lines -- the focused 5005 // rect covers the entire width. 5006 if (mHighlightPathBogus) { 5007 mHighlightPath.reset(); 5008 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 5009 mHighlightPathBogus = false; 5010 } 5011 synchronized (sTempRect) { 5012 mHighlightPath.computeBounds(sTempRect, true); 5013 r.left = (int)sTempRect.left-1; 5014 r.right = (int)sTempRect.right+1; 5015 } 5016 } 5017 } 5018 5019 // Adjust for padding and gravity. 5020 int paddingLeft = getCompoundPaddingLeft(); 5021 int paddingTop = getExtendedPaddingTop(); 5022 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5023 paddingTop += getVerticalOffset(false); 5024 } 5025 r.offset(paddingLeft, paddingTop); 5026 } 5027 5028 /** 5029 * Return the number of lines of text, or 0 if the internal Layout has not 5030 * been built. 5031 */ 5032 public int getLineCount() { 5033 return mLayout != null ? mLayout.getLineCount() : 0; 5034 } 5035 5036 /** 5037 * Return the baseline for the specified line (0...getLineCount() - 1) 5038 * If bounds is not null, return the top, left, right, bottom extents 5039 * of the specified line in it. If the internal Layout has not been built, 5040 * return 0 and set bounds to (0, 0, 0, 0) 5041 * @param line which line to examine (0..getLineCount() - 1) 5042 * @param bounds Optional. If not null, it returns the extent of the line 5043 * @return the Y-coordinate of the baseline 5044 */ 5045 public int getLineBounds(int line, Rect bounds) { 5046 if (mLayout == null) { 5047 if (bounds != null) { 5048 bounds.set(0, 0, 0, 0); 5049 } 5050 return 0; 5051 } 5052 else { 5053 int baseline = mLayout.getLineBounds(line, bounds); 5054 5055 int voffset = getExtendedPaddingTop(); 5056 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5057 voffset += getVerticalOffset(true); 5058 } 5059 if (bounds != null) { 5060 bounds.offset(getCompoundPaddingLeft(), voffset); 5061 } 5062 return baseline + voffset; 5063 } 5064 } 5065 5066 @Override 5067 public int getBaseline() { 5068 if (mLayout == null) { 5069 return super.getBaseline(); 5070 } 5071 5072 int voffset = 0; 5073 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5074 voffset = getVerticalOffset(true); 5075 } 5076 5077 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 5078 } 5079 5080 /** 5081 * @hide 5082 * @param offsetRequired 5083 */ 5084 @Override 5085 protected int getFadeTop(boolean offsetRequired) { 5086 if (mLayout == null) return 0; 5087 5088 int voffset = 0; 5089 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5090 voffset = getVerticalOffset(true); 5091 } 5092 5093 if (offsetRequired) voffset += getTopPaddingOffset(); 5094 5095 return getExtendedPaddingTop() + voffset; 5096 } 5097 5098 /** 5099 * @hide 5100 * @param offsetRequired 5101 */ 5102 @Override 5103 protected int getFadeHeight(boolean offsetRequired) { 5104 return mLayout != null ? mLayout.getHeight() : 0; 5105 } 5106 5107 @Override 5108 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 5109 if (keyCode == KeyEvent.KEYCODE_BACK) { 5110 boolean areSuggestionsShown = areSuggestionsShown(); 5111 boolean isInSelectionMode = mSelectionActionMode != null; 5112 5113 if (areSuggestionsShown || isInSelectionMode) { 5114 if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) { 5115 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5116 if (state != null) { 5117 state.startTracking(event, this); 5118 } 5119 return true; 5120 } else if (event.getAction() == KeyEvent.ACTION_UP) { 5121 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5122 if (state != null) { 5123 state.handleUpEvent(event); 5124 } 5125 if (event.isTracking() && !event.isCanceled()) { 5126 if (areSuggestionsShown) { 5127 hideSuggestions(); 5128 return true; 5129 } 5130 if (isInSelectionMode) { 5131 stopSelectionActionMode(); 5132 return true; 5133 } 5134 } 5135 } 5136 } 5137 } 5138 return super.onKeyPreIme(keyCode, event); 5139 } 5140 5141 @Override 5142 public boolean onKeyDown(int keyCode, KeyEvent event) { 5143 int which = doKeyDown(keyCode, event, null); 5144 if (which == 0) { 5145 // Go through default dispatching. 5146 return super.onKeyDown(keyCode, event); 5147 } 5148 5149 return true; 5150 } 5151 5152 @Override 5153 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 5154 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 5155 5156 int which = doKeyDown(keyCode, down, event); 5157 if (which == 0) { 5158 // Go through default dispatching. 5159 return super.onKeyMultiple(keyCode, repeatCount, event); 5160 } 5161 if (which == -1) { 5162 // Consumed the whole thing. 5163 return true; 5164 } 5165 5166 repeatCount--; 5167 5168 // We are going to dispatch the remaining events to either the input 5169 // or movement method. To do this, we will just send a repeated stream 5170 // of down and up events until we have done the complete repeatCount. 5171 // It would be nice if those interfaces had an onKeyMultiple() method, 5172 // but adding that is a more complicated change. 5173 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 5174 if (which == 1) { 5175 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 5176 while (--repeatCount > 0) { 5177 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 5178 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 5179 } 5180 hideErrorIfUnchanged(); 5181 5182 } else if (which == 2) { 5183 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5184 while (--repeatCount > 0) { 5185 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 5186 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5187 } 5188 } 5189 5190 return true; 5191 } 5192 5193 /** 5194 * Returns true if pressing ENTER in this field advances focus instead 5195 * of inserting the character. This is true mostly in single-line fields, 5196 * but also in mail addresses and subjects which will display on multiple 5197 * lines but where it doesn't make sense to insert newlines. 5198 */ 5199 private boolean shouldAdvanceFocusOnEnter() { 5200 if (mInput == null) { 5201 return false; 5202 } 5203 5204 if (mSingleLine) { 5205 return true; 5206 } 5207 5208 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5209 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 5210 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 5211 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 5212 return true; 5213 } 5214 } 5215 5216 return false; 5217 } 5218 5219 /** 5220 * Returns true if pressing TAB in this field advances focus instead 5221 * of inserting the character. Insert tabs only in multi-line editors. 5222 */ 5223 private boolean shouldAdvanceFocusOnTab() { 5224 if (mInput != null && !mSingleLine) { 5225 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5226 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 5227 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 5228 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 5229 return false; 5230 } 5231 } 5232 } 5233 return true; 5234 } 5235 5236 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 5237 if (!isEnabled()) { 5238 return 0; 5239 } 5240 5241 switch (keyCode) { 5242 case KeyEvent.KEYCODE_ENTER: 5243 mEnterKeyIsDown = true; 5244 if (event.hasNoModifiers()) { 5245 // When mInputContentType is set, we know that we are 5246 // running in a "modern" cupcake environment, so don't need 5247 // to worry about the application trying to capture 5248 // enter key events. 5249 if (mInputContentType != null) { 5250 // If there is an action listener, given them a 5251 // chance to consume the event. 5252 if (mInputContentType.onEditorActionListener != null && 5253 mInputContentType.onEditorActionListener.onEditorAction( 5254 this, EditorInfo.IME_NULL, event)) { 5255 mInputContentType.enterDown = true; 5256 // We are consuming the enter key for them. 5257 return -1; 5258 } 5259 } 5260 5261 // If our editor should move focus when enter is pressed, or 5262 // this is a generated event from an IME action button, then 5263 // don't let it be inserted into the text. 5264 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5265 || shouldAdvanceFocusOnEnter()) { 5266 if (mOnClickListener != null) { 5267 return 0; 5268 } 5269 return -1; 5270 } 5271 } 5272 break; 5273 5274 case KeyEvent.KEYCODE_DPAD_CENTER: 5275 mDPadCenterIsDown = true; 5276 if (event.hasNoModifiers()) { 5277 if (shouldAdvanceFocusOnEnter()) { 5278 return 0; 5279 } 5280 } 5281 break; 5282 5283 case KeyEvent.KEYCODE_TAB: 5284 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 5285 if (shouldAdvanceFocusOnTab()) { 5286 return 0; 5287 } 5288 } 5289 break; 5290 5291 // Has to be done on key down (and not on key up) to correctly be intercepted. 5292 case KeyEvent.KEYCODE_BACK: 5293 if (areSuggestionsShown()) { 5294 hideSuggestions(); 5295 return -1; 5296 } 5297 if (mSelectionActionMode != null) { 5298 stopSelectionActionMode(); 5299 return -1; 5300 } 5301 break; 5302 } 5303 5304 if (mInput != null) { 5305 resetErrorChangedFlag(); 5306 5307 boolean doDown = true; 5308 if (otherEvent != null) { 5309 try { 5310 beginBatchEdit(); 5311 final boolean handled = mInput.onKeyOther(this, (Editable) mText, otherEvent); 5312 hideErrorIfUnchanged(); 5313 doDown = false; 5314 if (handled) { 5315 return -1; 5316 } 5317 } catch (AbstractMethodError e) { 5318 // onKeyOther was added after 1.0, so if it isn't 5319 // implemented we need to try to dispatch as a regular down. 5320 } finally { 5321 endBatchEdit(); 5322 } 5323 } 5324 5325 if (doDown) { 5326 beginBatchEdit(); 5327 final boolean handled = mInput.onKeyDown(this, (Editable) mText, keyCode, event); 5328 endBatchEdit(); 5329 hideErrorIfUnchanged(); 5330 if (handled) return 1; 5331 } 5332 } 5333 5334 // bug 650865: sometimes we get a key event before a layout. 5335 // don't try to move around if we don't know the layout. 5336 5337 if (mMovement != null && mLayout != null) { 5338 boolean doDown = true; 5339 if (otherEvent != null) { 5340 try { 5341 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 5342 otherEvent); 5343 doDown = false; 5344 if (handled) { 5345 return -1; 5346 } 5347 } catch (AbstractMethodError e) { 5348 // onKeyOther was added after 1.0, so if it isn't 5349 // implemented we need to try to dispatch as a regular down. 5350 } 5351 } 5352 if (doDown) { 5353 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 5354 return 2; 5355 } 5356 } 5357 5358 return 0; 5359 } 5360 5361 /** 5362 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 5363 * can be recorded. 5364 * @hide 5365 */ 5366 public void resetErrorChangedFlag() { 5367 /* 5368 * Keep track of what the error was before doing the input 5369 * so that if an input filter changed the error, we leave 5370 * that error showing. Otherwise, we take down whatever 5371 * error was showing when the user types something. 5372 */ 5373 mErrorWasChanged = false; 5374 } 5375 5376 /** 5377 * @hide 5378 */ 5379 public void hideErrorIfUnchanged() { 5380 if (mError != null && !mErrorWasChanged) { 5381 setError(null, null); 5382 } 5383 } 5384 5385 @Override 5386 public boolean onKeyUp(int keyCode, KeyEvent event) { 5387 if (!isEnabled()) { 5388 return super.onKeyUp(keyCode, event); 5389 } 5390 5391 switch (keyCode) { 5392 case KeyEvent.KEYCODE_DPAD_CENTER: 5393 mDPadCenterIsDown = false; 5394 if (event.hasNoModifiers()) { 5395 /* 5396 * If there is a click listener, just call through to 5397 * super, which will invoke it. 5398 * 5399 * If there isn't a click listener, try to show the soft 5400 * input method. (It will also 5401 * call performClick(), but that won't do anything in 5402 * this case.) 5403 */ 5404 if (mOnClickListener == null) { 5405 if (mMovement != null && mText instanceof Editable 5406 && mLayout != null && onCheckIsTextEditor()) { 5407 InputMethodManager imm = InputMethodManager.peekInstance(); 5408 if (imm != null) { 5409 imm.viewClicked(this); 5410 imm.showSoftInput(this, 0); 5411 } 5412 } 5413 } 5414 } 5415 return super.onKeyUp(keyCode, event); 5416 5417 case KeyEvent.KEYCODE_ENTER: 5418 mEnterKeyIsDown = false; 5419 if (event.hasNoModifiers()) { 5420 if (mInputContentType != null 5421 && mInputContentType.onEditorActionListener != null 5422 && mInputContentType.enterDown) { 5423 mInputContentType.enterDown = false; 5424 if (mInputContentType.onEditorActionListener.onEditorAction( 5425 this, EditorInfo.IME_NULL, event)) { 5426 return true; 5427 } 5428 } 5429 5430 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5431 || shouldAdvanceFocusOnEnter()) { 5432 /* 5433 * If there is a click listener, just call through to 5434 * super, which will invoke it. 5435 * 5436 * If there isn't a click listener, try to advance focus, 5437 * but still call through to super, which will reset the 5438 * pressed state and longpress state. (It will also 5439 * call performClick(), but that won't do anything in 5440 * this case.) 5441 */ 5442 if (mOnClickListener == null) { 5443 View v = focusSearch(FOCUS_DOWN); 5444 5445 if (v != null) { 5446 if (!v.requestFocus(FOCUS_DOWN)) { 5447 throw new IllegalStateException( 5448 "focus search returned a view " + 5449 "that wasn't able to take focus!"); 5450 } 5451 5452 /* 5453 * Return true because we handled the key; super 5454 * will return false because there was no click 5455 * listener. 5456 */ 5457 super.onKeyUp(keyCode, event); 5458 return true; 5459 } else if ((event.getFlags() 5460 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 5461 // No target for next focus, but make sure the IME 5462 // if this came from it. 5463 InputMethodManager imm = InputMethodManager.peekInstance(); 5464 if (imm != null && imm.isActive(this)) { 5465 imm.hideSoftInputFromWindow(getWindowToken(), 0); 5466 } 5467 } 5468 } 5469 } 5470 return super.onKeyUp(keyCode, event); 5471 } 5472 break; 5473 } 5474 5475 if (mInput != null) 5476 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 5477 return true; 5478 5479 if (mMovement != null && mLayout != null) 5480 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 5481 return true; 5482 5483 return super.onKeyUp(keyCode, event); 5484 } 5485 5486 @Override public boolean onCheckIsTextEditor() { 5487 return mInputType != EditorInfo.TYPE_NULL; 5488 } 5489 5490 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5491 if (onCheckIsTextEditor() && isEnabled()) { 5492 if (mInputMethodState == null) { 5493 mInputMethodState = new InputMethodState(); 5494 } 5495 outAttrs.inputType = mInputType; 5496 if (mInputContentType != null) { 5497 outAttrs.imeOptions = mInputContentType.imeOptions; 5498 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 5499 outAttrs.actionLabel = mInputContentType.imeActionLabel; 5500 outAttrs.actionId = mInputContentType.imeActionId; 5501 outAttrs.extras = mInputContentType.extras; 5502 } else { 5503 outAttrs.imeOptions = EditorInfo.IME_NULL; 5504 } 5505 if (focusSearch(FOCUS_DOWN) != null) { 5506 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 5507 } 5508 if (focusSearch(FOCUS_UP) != null) { 5509 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 5510 } 5511 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 5512 == EditorInfo.IME_ACTION_UNSPECIFIED) { 5513 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 5514 // An action has not been set, but the enter key will move to 5515 // the next focus, so set the action to that. 5516 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 5517 } else { 5518 // An action has not been set, and there is no focus to move 5519 // to, so let's just supply a "done" action. 5520 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 5521 } 5522 if (!shouldAdvanceFocusOnEnter()) { 5523 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5524 } 5525 } 5526 if (isMultilineInputType(outAttrs.inputType)) { 5527 // Multi-line text editors should always show an enter key. 5528 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5529 } 5530 outAttrs.hintText = mHint; 5531 if (mText instanceof Editable) { 5532 InputConnection ic = new EditableInputConnection(this); 5533 outAttrs.initialSelStart = getSelectionStart(); 5534 outAttrs.initialSelEnd = getSelectionEnd(); 5535 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 5536 return ic; 5537 } 5538 } 5539 return null; 5540 } 5541 5542 /** 5543 * If this TextView contains editable content, extract a portion of it 5544 * based on the information in <var>request</var> in to <var>outText</var>. 5545 * @return Returns true if the text was successfully extracted, else false. 5546 */ 5547 public boolean extractText(ExtractedTextRequest request, 5548 ExtractedText outText) { 5549 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 5550 EXTRACT_UNKNOWN, outText); 5551 } 5552 5553 static final int EXTRACT_NOTHING = -2; 5554 static final int EXTRACT_UNKNOWN = -1; 5555 5556 boolean extractTextInternal(ExtractedTextRequest request, 5557 int partialStartOffset, int partialEndOffset, int delta, 5558 ExtractedText outText) { 5559 final CharSequence content = mText; 5560 if (content != null) { 5561 if (partialStartOffset != EXTRACT_NOTHING) { 5562 final int N = content.length(); 5563 if (partialStartOffset < 0) { 5564 outText.partialStartOffset = outText.partialEndOffset = -1; 5565 partialStartOffset = 0; 5566 partialEndOffset = N; 5567 } else { 5568 // Now use the delta to determine the actual amount of text 5569 // we need. 5570 partialEndOffset += delta; 5571 // Adjust offsets to ensure we contain full spans. 5572 if (content instanceof Spanned) { 5573 Spanned spanned = (Spanned)content; 5574 Object[] spans = spanned.getSpans(partialStartOffset, 5575 partialEndOffset, ParcelableSpan.class); 5576 int i = spans.length; 5577 while (i > 0) { 5578 i--; 5579 int j = spanned.getSpanStart(spans[i]); 5580 if (j < partialStartOffset) partialStartOffset = j; 5581 j = spanned.getSpanEnd(spans[i]); 5582 if (j > partialEndOffset) partialEndOffset = j; 5583 } 5584 } 5585 outText.partialStartOffset = partialStartOffset; 5586 outText.partialEndOffset = partialEndOffset - delta; 5587 5588 if (partialStartOffset > N) { 5589 partialStartOffset = N; 5590 } else if (partialStartOffset < 0) { 5591 partialStartOffset = 0; 5592 } 5593 if (partialEndOffset > N) { 5594 partialEndOffset = N; 5595 } else if (partialEndOffset < 0) { 5596 partialEndOffset = 0; 5597 } 5598 } 5599 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 5600 outText.text = content.subSequence(partialStartOffset, 5601 partialEndOffset); 5602 } else { 5603 outText.text = TextUtils.substring(content, partialStartOffset, 5604 partialEndOffset); 5605 } 5606 } else { 5607 outText.partialStartOffset = 0; 5608 outText.partialEndOffset = 0; 5609 outText.text = ""; 5610 } 5611 outText.flags = 0; 5612 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 5613 outText.flags |= ExtractedText.FLAG_SELECTING; 5614 } 5615 if (mSingleLine) { 5616 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 5617 } 5618 outText.startOffset = 0; 5619 outText.selectionStart = getSelectionStart(); 5620 outText.selectionEnd = getSelectionEnd(); 5621 return true; 5622 } 5623 return false; 5624 } 5625 5626 boolean reportExtractedText() { 5627 final InputMethodState ims = mInputMethodState; 5628 if (ims != null) { 5629 final boolean contentChanged = ims.mContentChanged; 5630 if (contentChanged || ims.mSelectionModeChanged) { 5631 ims.mContentChanged = false; 5632 ims.mSelectionModeChanged = false; 5633 final ExtractedTextRequest req = mInputMethodState.mExtracting; 5634 if (req != null) { 5635 InputMethodManager imm = InputMethodManager.peekInstance(); 5636 if (imm != null) { 5637 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 5638 + ims.mChangedStart + " end=" + ims.mChangedEnd 5639 + " delta=" + ims.mChangedDelta); 5640 if (ims.mChangedStart < 0 && !contentChanged) { 5641 ims.mChangedStart = EXTRACT_NOTHING; 5642 } 5643 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 5644 ims.mChangedDelta, ims.mTmpExtracted)) { 5645 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 5646 + ims.mTmpExtracted.partialStartOffset 5647 + " end=" + ims.mTmpExtracted.partialEndOffset 5648 + ": " + ims.mTmpExtracted.text); 5649 imm.updateExtractedText(this, req.token, 5650 mInputMethodState.mTmpExtracted); 5651 ims.mChangedStart = EXTRACT_UNKNOWN; 5652 ims.mChangedEnd = EXTRACT_UNKNOWN; 5653 ims.mChangedDelta = 0; 5654 ims.mContentChanged = false; 5655 return true; 5656 } 5657 } 5658 } 5659 } 5660 } 5661 return false; 5662 } 5663 5664 /** 5665 * This is used to remove all style-impacting spans from text before new 5666 * extracted text is being replaced into it, so that we don't have any 5667 * lingering spans applied during the replace. 5668 */ 5669 static void removeParcelableSpans(Spannable spannable, int start, int end) { 5670 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 5671 int i = spans.length; 5672 while (i > 0) { 5673 i--; 5674 spannable.removeSpan(spans[i]); 5675 } 5676 } 5677 5678 /** 5679 * Apply to this text view the given extracted text, as previously 5680 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 5681 */ 5682 public void setExtractedText(ExtractedText text) { 5683 Editable content = getEditableText(); 5684 if (text.text != null) { 5685 if (content == null) { 5686 setText(text.text, TextView.BufferType.EDITABLE); 5687 } else if (text.partialStartOffset < 0) { 5688 removeParcelableSpans(content, 0, content.length()); 5689 content.replace(0, content.length(), text.text); 5690 } else { 5691 final int N = content.length(); 5692 int start = text.partialStartOffset; 5693 if (start > N) start = N; 5694 int end = text.partialEndOffset; 5695 if (end > N) end = N; 5696 removeParcelableSpans(content, start, end); 5697 content.replace(start, end, text.text); 5698 } 5699 } 5700 5701 // Now set the selection position... make sure it is in range, to 5702 // avoid crashes. If this is a partial update, it is possible that 5703 // the underlying text may have changed, causing us problems here. 5704 // Also we just don't want to trust clients to do the right thing. 5705 Spannable sp = (Spannable)getText(); 5706 final int N = sp.length(); 5707 int start = text.selectionStart; 5708 if (start < 0) start = 0; 5709 else if (start > N) start = N; 5710 int end = text.selectionEnd; 5711 if (end < 0) end = 0; 5712 else if (end > N) end = N; 5713 Selection.setSelection(sp, start, end); 5714 5715 // Finally, update the selection mode. 5716 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 5717 MetaKeyKeyListener.startSelecting(this, sp); 5718 } else { 5719 MetaKeyKeyListener.stopSelecting(this, sp); 5720 } 5721 } 5722 5723 /** 5724 * @hide 5725 */ 5726 public void setExtracting(ExtractedTextRequest req) { 5727 if (mInputMethodState != null) { 5728 mInputMethodState.mExtracting = req; 5729 } 5730 // This stops a possible text selection mode. Maybe not intended. 5731 hideControllers(); 5732 } 5733 5734 /** 5735 * Called by the framework in response to a text completion from 5736 * the current input method, provided by it calling 5737 * {@link InputConnection#commitCompletion 5738 * InputConnection.commitCompletion()}. The default implementation does 5739 * nothing; text views that are supporting auto-completion should override 5740 * this to do their desired behavior. 5741 * 5742 * @param text The auto complete text the user has selected. 5743 */ 5744 public void onCommitCompletion(CompletionInfo text) { 5745 // intentionally empty 5746 } 5747 5748 /** 5749 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 5750 * a dictionnary) from the current input method, provided by it calling 5751 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 5752 * implementation flashes the background of the corrected word to provide feedback to the user. 5753 * 5754 * @param info The auto correct info about the text that was corrected. 5755 */ 5756 public void onCommitCorrection(CorrectionInfo info) { 5757 if (mCorrectionHighlighter == null) { 5758 mCorrectionHighlighter = new CorrectionHighlighter(); 5759 } else { 5760 mCorrectionHighlighter.invalidate(false); 5761 } 5762 5763 mCorrectionHighlighter.highlight(info); 5764 } 5765 5766 private class CorrectionHighlighter { 5767 private final Path mPath = new Path(); 5768 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 5769 private int mStart, mEnd; 5770 private long mFadingStartTime; 5771 private final static int FADE_OUT_DURATION = 400; 5772 5773 public CorrectionHighlighter() { 5774 mPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale); 5775 mPaint.setStyle(Paint.Style.FILL); 5776 } 5777 5778 public void highlight(CorrectionInfo info) { 5779 mStart = info.getOffset(); 5780 mEnd = mStart + info.getNewText().length(); 5781 mFadingStartTime = SystemClock.uptimeMillis(); 5782 5783 if (mStart < 0 || mEnd < 0) { 5784 stopAnimation(); 5785 } 5786 } 5787 5788 public void draw(Canvas canvas, int cursorOffsetVertical) { 5789 if (updatePath() && updatePaint()) { 5790 if (cursorOffsetVertical != 0) { 5791 canvas.translate(0, cursorOffsetVertical); 5792 } 5793 5794 canvas.drawPath(mPath, mPaint); 5795 5796 if (cursorOffsetVertical != 0) { 5797 canvas.translate(0, -cursorOffsetVertical); 5798 } 5799 invalidate(true); 5800 } else { 5801 stopAnimation(); 5802 invalidate(false); 5803 } 5804 } 5805 5806 private boolean updatePaint() { 5807 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 5808 if (duration > FADE_OUT_DURATION) return false; 5809 5810 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 5811 final int highlightColorAlpha = Color.alpha(mHighlightColor); 5812 final int color = (mHighlightColor & 0x00FFFFFF) + 5813 ((int) (highlightColorAlpha * coef) << 24); 5814 mPaint.setColor(color); 5815 return true; 5816 } 5817 5818 private boolean updatePath() { 5819 final Layout layout = TextView.this.mLayout; 5820 if (layout == null) return false; 5821 5822 // Update in case text is edited while the animation is run 5823 final int length = mText.length(); 5824 int start = Math.min(length, mStart); 5825 int end = Math.min(length, mEnd); 5826 5827 mPath.reset(); 5828 TextView.this.mLayout.getSelectionPath(start, end, mPath); 5829 return true; 5830 } 5831 5832 private void invalidate(boolean delayed) { 5833 if (TextView.this.mLayout == null) return; 5834 5835 synchronized (sTempRect) { 5836 mPath.computeBounds(sTempRect, false); 5837 5838 int left = getCompoundPaddingLeft(); 5839 int top = getExtendedPaddingTop() + getVerticalOffset(true); 5840 5841 if (delayed) { 5842 TextView.this.postInvalidateDelayed(16, // 60 Hz update 5843 left + (int) sTempRect.left, top + (int) sTempRect.top, 5844 left + (int) sTempRect.right, top + (int) sTempRect.bottom); 5845 } else { 5846 TextView.this.postInvalidate((int) sTempRect.left, (int) sTempRect.top, 5847 (int) sTempRect.right, (int) sTempRect.bottom); 5848 } 5849 } 5850 } 5851 5852 private void stopAnimation() { 5853 TextView.this.mCorrectionHighlighter = null; 5854 } 5855 } 5856 5857 public void beginBatchEdit() { 5858 mInBatchEditControllers = true; 5859 final InputMethodState ims = mInputMethodState; 5860 if (ims != null) { 5861 int nesting = ++ims.mBatchEditNesting; 5862 if (nesting == 1) { 5863 ims.mCursorChanged = false; 5864 ims.mChangedDelta = 0; 5865 if (ims.mContentChanged) { 5866 // We already have a pending change from somewhere else, 5867 // so turn this into a full update. 5868 ims.mChangedStart = 0; 5869 ims.mChangedEnd = mText.length(); 5870 } else { 5871 ims.mChangedStart = EXTRACT_UNKNOWN; 5872 ims.mChangedEnd = EXTRACT_UNKNOWN; 5873 ims.mContentChanged = false; 5874 } 5875 onBeginBatchEdit(); 5876 } 5877 } 5878 } 5879 5880 public void endBatchEdit() { 5881 mInBatchEditControllers = false; 5882 final InputMethodState ims = mInputMethodState; 5883 if (ims != null) { 5884 int nesting = --ims.mBatchEditNesting; 5885 if (nesting == 0) { 5886 finishBatchEdit(ims); 5887 } 5888 } 5889 } 5890 5891 void ensureEndedBatchEdit() { 5892 final InputMethodState ims = mInputMethodState; 5893 if (ims != null && ims.mBatchEditNesting != 0) { 5894 ims.mBatchEditNesting = 0; 5895 finishBatchEdit(ims); 5896 } 5897 } 5898 5899 void finishBatchEdit(final InputMethodState ims) { 5900 onEndBatchEdit(); 5901 5902 if (ims.mContentChanged || ims.mSelectionModeChanged) { 5903 updateAfterEdit(); 5904 reportExtractedText(); 5905 } else if (ims.mCursorChanged) { 5906 // Cheezy way to get us to report the current cursor location. 5907 invalidateCursor(); 5908 } 5909 } 5910 5911 void updateAfterEdit() { 5912 invalidate(); 5913 int curs = getSelectionStart(); 5914 5915 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5916 registerForPreDraw(); 5917 } 5918 5919 if (curs >= 0) { 5920 mHighlightPathBogus = true; 5921 makeBlink(); 5922 bringPointIntoView(curs); 5923 } 5924 5925 checkForResize(); 5926 } 5927 5928 /** 5929 * Called by the framework in response to a request to begin a batch 5930 * of edit operations through a call to link {@link #beginBatchEdit()}. 5931 */ 5932 public void onBeginBatchEdit() { 5933 // intentionally empty 5934 } 5935 5936 /** 5937 * Called by the framework in response to a request to end a batch 5938 * of edit operations through a call to link {@link #endBatchEdit}. 5939 */ 5940 public void onEndBatchEdit() { 5941 // intentionally empty 5942 } 5943 5944 /** 5945 * Called by the framework in response to a private command from the 5946 * current method, provided by it calling 5947 * {@link InputConnection#performPrivateCommand 5948 * InputConnection.performPrivateCommand()}. 5949 * 5950 * @param action The action name of the command. 5951 * @param data Any additional data for the command. This may be null. 5952 * @return Return true if you handled the command, else false. 5953 */ 5954 public boolean onPrivateIMECommand(String action, Bundle data) { 5955 return false; 5956 } 5957 5958 private void nullLayouts() { 5959 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 5960 mSavedLayout = (BoringLayout) mLayout; 5961 } 5962 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 5963 mSavedHintLayout = (BoringLayout) mHintLayout; 5964 } 5965 5966 mLayout = mHintLayout = null; 5967 5968 // Since it depends on the value of mLayout 5969 prepareCursorControllers(); 5970 } 5971 5972 /** 5973 * Make a new Layout based on the already-measured size of the view, 5974 * on the assumption that it was measured correctly at some point. 5975 */ 5976 private void assumeLayout() { 5977 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5978 5979 if (width < 1) { 5980 width = 0; 5981 } 5982 5983 int physicalWidth = width; 5984 5985 if (mHorizontallyScrolling) { 5986 width = VERY_WIDE; 5987 } 5988 5989 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 5990 physicalWidth, false); 5991 } 5992 5993 @Override 5994 protected void resetResolvedLayoutDirection() { 5995 super.resetResolvedLayoutDirection(); 5996 5997 if (mLayoutAlignment != null && 5998 (mTextAlign == TextAlign.VIEW_START || 5999 mTextAlign == TextAlign.VIEW_END)) { 6000 mLayoutAlignment = null; 6001 } 6002 } 6003 6004 private Layout.Alignment getLayoutAlignment() { 6005 if (mLayoutAlignment == null) { 6006 Layout.Alignment alignment; 6007 TextAlign textAlign = mTextAlign; 6008 switch (textAlign) { 6009 case INHERIT: 6010 // fall through to gravity temporarily 6011 // intention is to inherit value through view hierarchy. 6012 case GRAVITY: 6013 switch (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) { 6014 case Gravity.START: 6015 alignment = Layout.Alignment.ALIGN_NORMAL; 6016 break; 6017 case Gravity.END: 6018 alignment = Layout.Alignment.ALIGN_OPPOSITE; 6019 break; 6020 case Gravity.LEFT: 6021 alignment = Layout.Alignment.ALIGN_LEFT; 6022 break; 6023 case Gravity.RIGHT: 6024 alignment = Layout.Alignment.ALIGN_RIGHT; 6025 break; 6026 case Gravity.CENTER_HORIZONTAL: 6027 alignment = Layout.Alignment.ALIGN_CENTER; 6028 break; 6029 default: 6030 alignment = Layout.Alignment.ALIGN_NORMAL; 6031 break; 6032 } 6033 break; 6034 case TEXT_START: 6035 alignment = Layout.Alignment.ALIGN_NORMAL; 6036 break; 6037 case TEXT_END: 6038 alignment = Layout.Alignment.ALIGN_OPPOSITE; 6039 break; 6040 case CENTER: 6041 alignment = Layout.Alignment.ALIGN_CENTER; 6042 break; 6043 case VIEW_START: 6044 alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 6045 Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT; 6046 break; 6047 case VIEW_END: 6048 alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 6049 Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT; 6050 break; 6051 default: 6052 alignment = Layout.Alignment.ALIGN_NORMAL; 6053 break; 6054 } 6055 mLayoutAlignment = alignment; 6056 } 6057 return mLayoutAlignment; 6058 } 6059 6060 /** 6061 * The width passed in is now the desired layout width, 6062 * not the full view width with padding. 6063 * {@hide} 6064 */ 6065 protected void makeNewLayout(int w, int hintWidth, 6066 BoringLayout.Metrics boring, 6067 BoringLayout.Metrics hintBoring, 6068 int ellipsisWidth, boolean bringIntoView) { 6069 stopMarquee(); 6070 6071 mHighlightPathBogus = true; 6072 6073 if (w < 0) { 6074 w = 0; 6075 } 6076 if (hintWidth < 0) { 6077 hintWidth = 0; 6078 } 6079 6080 Layout.Alignment alignment = getLayoutAlignment(); 6081 boolean shouldEllipsize = mEllipsize != null && mInput == null; 6082 6083 if (mTextDir == null) { 6084 resolveTextDirection(); 6085 } 6086 if (mText instanceof Spannable) { 6087 mLayout = new DynamicLayout(mText, mTransformed, mTextPaint, w, 6088 alignment, mTextDir, mSpacingMult, 6089 mSpacingAdd, mIncludePad, mInput == null ? mEllipsize : null, 6090 ellipsisWidth); 6091 } else { 6092 if (boring == UNKNOWN_BORING) { 6093 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6094 if (boring != null) { 6095 mBoring = boring; 6096 } 6097 } 6098 6099 if (boring != null) { 6100 if (boring.width <= w && 6101 (mEllipsize == null || boring.width <= ellipsisWidth)) { 6102 if (mSavedLayout != null) { 6103 mLayout = mSavedLayout. 6104 replaceOrMake(mTransformed, mTextPaint, 6105 w, alignment, mSpacingMult, mSpacingAdd, 6106 boring, mIncludePad); 6107 } else { 6108 mLayout = BoringLayout.make(mTransformed, mTextPaint, 6109 w, alignment, mSpacingMult, mSpacingAdd, 6110 boring, mIncludePad); 6111 } 6112 6113 mSavedLayout = (BoringLayout) mLayout; 6114 } else if (shouldEllipsize && boring.width <= w) { 6115 if (mSavedLayout != null) { 6116 mLayout = mSavedLayout. 6117 replaceOrMake(mTransformed, mTextPaint, 6118 w, alignment, mSpacingMult, mSpacingAdd, 6119 boring, mIncludePad, mEllipsize, 6120 ellipsisWidth); 6121 } else { 6122 mLayout = BoringLayout.make(mTransformed, mTextPaint, 6123 w, alignment, mSpacingMult, mSpacingAdd, 6124 boring, mIncludePad, mEllipsize, 6125 ellipsisWidth); 6126 } 6127 } else if (shouldEllipsize) { 6128 mLayout = new StaticLayout(mTransformed, 6129 0, mTransformed.length(), 6130 mTextPaint, w, alignment, mTextDir, mSpacingMult, 6131 mSpacingAdd, mIncludePad, mEllipsize, 6132 ellipsisWidth); 6133 } else { 6134 mLayout = new StaticLayout(mTransformed, mTextPaint, 6135 w, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6136 mIncludePad); 6137 } 6138 } else if (shouldEllipsize) { 6139 mLayout = new StaticLayout(mTransformed, 6140 0, mTransformed.length(), 6141 mTextPaint, w, alignment, mTextDir, mSpacingMult, 6142 mSpacingAdd, mIncludePad, mEllipsize, 6143 ellipsisWidth); 6144 } else { 6145 mLayout = new StaticLayout(mTransformed, mTextPaint, 6146 w, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6147 mIncludePad); 6148 } 6149 } 6150 6151 shouldEllipsize = mEllipsize != null; 6152 mHintLayout = null; 6153 6154 if (mHint != null) { 6155 if (shouldEllipsize) hintWidth = w; 6156 6157 if (hintBoring == UNKNOWN_BORING) { 6158 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, 6159 mHintBoring); 6160 if (hintBoring != null) { 6161 mHintBoring = hintBoring; 6162 } 6163 } 6164 6165 if (hintBoring != null) { 6166 if (hintBoring.width <= hintWidth && 6167 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 6168 if (mSavedHintLayout != null) { 6169 mHintLayout = mSavedHintLayout. 6170 replaceOrMake(mHint, mTextPaint, 6171 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6172 hintBoring, mIncludePad); 6173 } else { 6174 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6175 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6176 hintBoring, mIncludePad); 6177 } 6178 6179 mSavedHintLayout = (BoringLayout) mHintLayout; 6180 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 6181 if (mSavedHintLayout != null) { 6182 mHintLayout = mSavedHintLayout. 6183 replaceOrMake(mHint, mTextPaint, 6184 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6185 hintBoring, mIncludePad, mEllipsize, 6186 ellipsisWidth); 6187 } else { 6188 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6189 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6190 hintBoring, mIncludePad, mEllipsize, 6191 ellipsisWidth); 6192 } 6193 } else if (shouldEllipsize) { 6194 mHintLayout = new StaticLayout(mHint, 6195 0, mHint.length(), 6196 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6197 mSpacingAdd, mIncludePad, mEllipsize, 6198 ellipsisWidth); 6199 } else { 6200 mHintLayout = new StaticLayout(mHint, mTextPaint, 6201 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6202 mIncludePad); 6203 } 6204 } else if (shouldEllipsize) { 6205 mHintLayout = new StaticLayout(mHint, 6206 0, mHint.length(), 6207 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6208 mSpacingAdd, mIncludePad, mEllipsize, 6209 ellipsisWidth); 6210 } else { 6211 mHintLayout = new StaticLayout(mHint, mTextPaint, 6212 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6213 mIncludePad); 6214 } 6215 } 6216 6217 if (bringIntoView) { 6218 registerForPreDraw(); 6219 } 6220 6221 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6222 if (!compressText(ellipsisWidth)) { 6223 final int height = mLayoutParams.height; 6224 // If the size of the view does not depend on the size of the text, try to 6225 // start the marquee immediately 6226 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 6227 startMarquee(); 6228 } else { 6229 // Defer the start of the marquee until we know our width (see setFrame()) 6230 mRestartMarquee = true; 6231 } 6232 } 6233 } 6234 6235 // CursorControllers need a non-null mLayout 6236 prepareCursorControllers(); 6237 } 6238 6239 private boolean compressText(float width) { 6240 if (isHardwareAccelerated()) return false; 6241 6242 // Only compress the text if it hasn't been compressed by the previous pass 6243 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 6244 mTextPaint.getTextScaleX() == 1.0f) { 6245 final float textWidth = mLayout.getLineWidth(0); 6246 final float overflow = (textWidth + 1.0f - width) / width; 6247 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 6248 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 6249 post(new Runnable() { 6250 public void run() { 6251 requestLayout(); 6252 } 6253 }); 6254 return true; 6255 } 6256 } 6257 6258 return false; 6259 } 6260 6261 private static int desired(Layout layout) { 6262 int n = layout.getLineCount(); 6263 CharSequence text = layout.getText(); 6264 float max = 0; 6265 6266 // if any line was wrapped, we can't use it. 6267 // but it's ok for the last line not to have a newline 6268 6269 for (int i = 0; i < n - 1; i++) { 6270 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 6271 return -1; 6272 } 6273 6274 for (int i = 0; i < n; i++) { 6275 max = Math.max(max, layout.getLineWidth(i)); 6276 } 6277 6278 return (int) FloatMath.ceil(max); 6279 } 6280 6281 /** 6282 * Set whether the TextView includes extra top and bottom padding to make 6283 * room for accents that go above the normal ascent and descent. 6284 * The default is true. 6285 * 6286 * @attr ref android.R.styleable#TextView_includeFontPadding 6287 */ 6288 public void setIncludeFontPadding(boolean includepad) { 6289 if (mIncludePad != includepad) { 6290 mIncludePad = includepad; 6291 6292 if (mLayout != null) { 6293 nullLayouts(); 6294 requestLayout(); 6295 invalidate(); 6296 } 6297 } 6298 } 6299 6300 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 6301 6302 @Override 6303 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 6304 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 6305 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 6306 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 6307 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 6308 6309 int width; 6310 int height; 6311 6312 BoringLayout.Metrics boring = UNKNOWN_BORING; 6313 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 6314 6315 if (mTextDir == null) { 6316 resolveTextDirection(); 6317 } 6318 6319 int des = -1; 6320 boolean fromexisting = false; 6321 6322 if (widthMode == MeasureSpec.EXACTLY) { 6323 // Parent has told us how big to be. So be it. 6324 width = widthSize; 6325 } else { 6326 if (mLayout != null && mEllipsize == null) { 6327 des = desired(mLayout); 6328 } 6329 6330 if (des < 0) { 6331 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6332 if (boring != null) { 6333 mBoring = boring; 6334 } 6335 } else { 6336 fromexisting = true; 6337 } 6338 6339 if (boring == null || boring == UNKNOWN_BORING) { 6340 if (des < 0) { 6341 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 6342 } 6343 6344 width = des; 6345 } else { 6346 width = boring.width; 6347 } 6348 6349 final Drawables dr = mDrawables; 6350 if (dr != null) { 6351 width = Math.max(width, dr.mDrawableWidthTop); 6352 width = Math.max(width, dr.mDrawableWidthBottom); 6353 } 6354 6355 if (mHint != null) { 6356 int hintDes = -1; 6357 int hintWidth; 6358 6359 if (mHintLayout != null && mEllipsize == null) { 6360 hintDes = desired(mHintLayout); 6361 } 6362 6363 if (hintDes < 0) { 6364 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 6365 if (hintBoring != null) { 6366 mHintBoring = hintBoring; 6367 } 6368 } 6369 6370 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 6371 if (hintDes < 0) { 6372 hintDes = (int) FloatMath.ceil( 6373 Layout.getDesiredWidth(mHint, mTextPaint)); 6374 } 6375 6376 hintWidth = hintDes; 6377 } else { 6378 hintWidth = hintBoring.width; 6379 } 6380 6381 if (hintWidth > width) { 6382 width = hintWidth; 6383 } 6384 } 6385 6386 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 6387 6388 if (mMaxWidthMode == EMS) { 6389 width = Math.min(width, mMaxWidth * getLineHeight()); 6390 } else { 6391 width = Math.min(width, mMaxWidth); 6392 } 6393 6394 if (mMinWidthMode == EMS) { 6395 width = Math.max(width, mMinWidth * getLineHeight()); 6396 } else { 6397 width = Math.max(width, mMinWidth); 6398 } 6399 6400 // Check against our minimum width 6401 width = Math.max(width, getSuggestedMinimumWidth()); 6402 6403 if (widthMode == MeasureSpec.AT_MOST) { 6404 width = Math.min(widthSize, width); 6405 } 6406 } 6407 6408 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6409 int unpaddedWidth = want; 6410 6411 if (mHorizontallyScrolling) want = VERY_WIDE; 6412 6413 int hintWant = want; 6414 int hintWidth = mHintLayout == null ? hintWant : mHintLayout.getWidth(); 6415 6416 if (mLayout == null) { 6417 makeNewLayout(want, hintWant, boring, hintBoring, 6418 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6419 } else if ((mLayout.getWidth() != want) || (hintWidth != hintWant) || 6420 (mLayout.getEllipsizedWidth() != 6421 width - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 6422 if (mHint == null && mEllipsize == null && 6423 want > mLayout.getWidth() && 6424 (mLayout instanceof BoringLayout || 6425 (fromexisting && des >= 0 && des <= want))) { 6426 mLayout.increaseWidthTo(want); 6427 } else { 6428 makeNewLayout(want, hintWant, boring, hintBoring, 6429 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6430 } 6431 } else { 6432 // Width has not changed. 6433 } 6434 6435 if (heightMode == MeasureSpec.EXACTLY) { 6436 // Parent has told us how big to be. So be it. 6437 height = heightSize; 6438 mDesiredHeightAtMeasure = -1; 6439 } else { 6440 int desired = getDesiredHeight(); 6441 6442 height = desired; 6443 mDesiredHeightAtMeasure = desired; 6444 6445 if (heightMode == MeasureSpec.AT_MOST) { 6446 height = Math.min(desired, heightSize); 6447 } 6448 } 6449 6450 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 6451 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 6452 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 6453 } 6454 6455 /* 6456 * We didn't let makeNewLayout() register to bring the cursor into view, 6457 * so do it here if there is any possibility that it is needed. 6458 */ 6459 if (mMovement != null || 6460 mLayout.getWidth() > unpaddedWidth || 6461 mLayout.getHeight() > unpaddedHeight) { 6462 registerForPreDraw(); 6463 } else { 6464 scrollTo(0, 0); 6465 } 6466 6467 setMeasuredDimension(width, height); 6468 } 6469 6470 private int getDesiredHeight() { 6471 return Math.max( 6472 getDesiredHeight(mLayout, true), 6473 getDesiredHeight(mHintLayout, mEllipsize != null)); 6474 } 6475 6476 private int getDesiredHeight(Layout layout, boolean cap) { 6477 if (layout == null) { 6478 return 0; 6479 } 6480 6481 int linecount = layout.getLineCount(); 6482 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 6483 int desired = layout.getLineTop(linecount); 6484 6485 final Drawables dr = mDrawables; 6486 if (dr != null) { 6487 desired = Math.max(desired, dr.mDrawableHeightLeft); 6488 desired = Math.max(desired, dr.mDrawableHeightRight); 6489 } 6490 6491 desired += pad; 6492 layout.setMaximumVisibleLineCount(0); 6493 6494 if (mMaxMode == LINES) { 6495 /* 6496 * Don't cap the hint to a certain number of lines. 6497 * (Do cap it, though, if we have a maximum pixel height.) 6498 */ 6499 if (cap) { 6500 if (linecount > mMaximum) { 6501 layout.setMaximumVisibleLineCount(mMaximum); 6502 desired = layout.getLineTop(mMaximum); 6503 6504 if (dr != null) { 6505 desired = Math.max(desired, dr.mDrawableHeightLeft); 6506 desired = Math.max(desired, dr.mDrawableHeightRight); 6507 } 6508 6509 desired += pad; 6510 linecount = mMaximum; 6511 } 6512 } 6513 } else { 6514 desired = Math.min(desired, mMaximum); 6515 } 6516 6517 if (mMinMode == LINES) { 6518 if (linecount < mMinimum) { 6519 desired += getLineHeight() * (mMinimum - linecount); 6520 } 6521 } else { 6522 desired = Math.max(desired, mMinimum); 6523 } 6524 6525 // Check against our minimum height 6526 desired = Math.max(desired, getSuggestedMinimumHeight()); 6527 6528 return desired; 6529 } 6530 6531 /** 6532 * Check whether a change to the existing text layout requires a 6533 * new view layout. 6534 */ 6535 private void checkForResize() { 6536 boolean sizeChanged = false; 6537 6538 if (mLayout != null) { 6539 // Check if our width changed 6540 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 6541 sizeChanged = true; 6542 invalidate(); 6543 } 6544 6545 // Check if our height changed 6546 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 6547 int desiredHeight = getDesiredHeight(); 6548 6549 if (desiredHeight != this.getHeight()) { 6550 sizeChanged = true; 6551 } 6552 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 6553 if (mDesiredHeightAtMeasure >= 0) { 6554 int desiredHeight = getDesiredHeight(); 6555 6556 if (desiredHeight != mDesiredHeightAtMeasure) { 6557 sizeChanged = true; 6558 } 6559 } 6560 } 6561 } 6562 6563 if (sizeChanged) { 6564 requestLayout(); 6565 // caller will have already invalidated 6566 } 6567 } 6568 6569 /** 6570 * Check whether entirely new text requires a new view layout 6571 * or merely a new text layout. 6572 */ 6573 private void checkForRelayout() { 6574 // If we have a fixed width, we can just swap in a new text layout 6575 // if the text height stays the same or if the view height is fixed. 6576 6577 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 6578 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 6579 (mHint == null || mHintLayout != null) && 6580 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 6581 // Static width, so try making a new text layout. 6582 6583 int oldht = mLayout.getHeight(); 6584 int want = mLayout.getWidth(); 6585 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 6586 6587 /* 6588 * No need to bring the text into view, since the size is not 6589 * changing (unless we do the requestLayout(), in which case it 6590 * will happen at measure). 6591 */ 6592 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 6593 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 6594 false); 6595 6596 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 6597 // In a fixed-height view, so use our new text layout. 6598 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 6599 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 6600 invalidate(); 6601 return; 6602 } 6603 6604 // Dynamic height, but height has stayed the same, 6605 // so use our new text layout. 6606 if (mLayout.getHeight() == oldht && 6607 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 6608 invalidate(); 6609 return; 6610 } 6611 } 6612 6613 // We lose: the height has changed and we have a dynamic height. 6614 // Request a new view layout using our new text layout. 6615 requestLayout(); 6616 invalidate(); 6617 } else { 6618 // Dynamic width, so we have no choice but to request a new 6619 // view layout with a new text layout. 6620 nullLayouts(); 6621 requestLayout(); 6622 invalidate(); 6623 } 6624 } 6625 6626 /** 6627 * Returns true if anything changed. 6628 */ 6629 private boolean bringTextIntoView() { 6630 int line = 0; 6631 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6632 line = mLayout.getLineCount() - 1; 6633 } 6634 6635 Layout.Alignment a = mLayout.getParagraphAlignment(line); 6636 int dir = mLayout.getParagraphDirection(line); 6637 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6638 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6639 int ht = mLayout.getHeight(); 6640 6641 int scrollx, scrolly; 6642 6643 // Convert to left, center, or right alignment. 6644 if (a == Layout.Alignment.ALIGN_NORMAL) { 6645 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_LEFT : 6646 Layout.Alignment.ALIGN_RIGHT; 6647 } else if (a == Layout.Alignment.ALIGN_OPPOSITE){ 6648 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_RIGHT : 6649 Layout.Alignment.ALIGN_LEFT; 6650 } 6651 6652 if (a == Layout.Alignment.ALIGN_CENTER) { 6653 /* 6654 * Keep centered if possible, or, if it is too wide to fit, 6655 * keep leading edge in view. 6656 */ 6657 6658 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6659 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6660 6661 if (right - left < hspace) { 6662 scrollx = (right + left) / 2 - hspace / 2; 6663 } else { 6664 if (dir < 0) { 6665 scrollx = right - hspace; 6666 } else { 6667 scrollx = left; 6668 } 6669 } 6670 } else if (a == Layout.Alignment.ALIGN_RIGHT) { 6671 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6672 scrollx = right - hspace; 6673 } else { // a == Layout.Alignment.ALIGN_LEFT (will also be the default) 6674 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6675 } 6676 6677 if (ht < vspace) { 6678 scrolly = 0; 6679 } else { 6680 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6681 scrolly = ht - vspace; 6682 } else { 6683 scrolly = 0; 6684 } 6685 } 6686 6687 if (scrollx != mScrollX || scrolly != mScrollY) { 6688 scrollTo(scrollx, scrolly); 6689 return true; 6690 } else { 6691 return false; 6692 } 6693 } 6694 6695 /** 6696 * Move the point, specified by the offset, into the view if it is needed. 6697 * This has to be called after layout. Returns true if anything changed. 6698 */ 6699 public boolean bringPointIntoView(int offset) { 6700 boolean changed = false; 6701 6702 if (mLayout == null) return changed; 6703 6704 int line = mLayout.getLineForOffset(offset); 6705 6706 // FIXME: Is it okay to truncate this, or should we round? 6707 final int x = (int)mLayout.getPrimaryHorizontal(offset); 6708 final int top = mLayout.getLineTop(line); 6709 final int bottom = mLayout.getLineTop(line + 1); 6710 6711 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6712 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6713 int ht = mLayout.getHeight(); 6714 6715 int grav; 6716 6717 switch (mLayout.getParagraphAlignment(line)) { 6718 case ALIGN_LEFT: 6719 grav = 1; 6720 break; 6721 case ALIGN_RIGHT: 6722 grav = -1; 6723 break; 6724 case ALIGN_NORMAL: 6725 grav = mLayout.getParagraphDirection(line); 6726 break; 6727 case ALIGN_OPPOSITE: 6728 grav = -mLayout.getParagraphDirection(line); 6729 break; 6730 case ALIGN_CENTER: 6731 default: 6732 grav = 0; 6733 break; 6734 } 6735 6736 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6737 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6738 6739 int hslack = (bottom - top) / 2; 6740 int vslack = hslack; 6741 6742 if (vslack > vspace / 4) 6743 vslack = vspace / 4; 6744 if (hslack > hspace / 4) 6745 hslack = hspace / 4; 6746 6747 int hs = mScrollX; 6748 int vs = mScrollY; 6749 6750 if (top - vs < vslack) 6751 vs = top - vslack; 6752 if (bottom - vs > vspace - vslack) 6753 vs = bottom - (vspace - vslack); 6754 if (ht - vs < vspace) 6755 vs = ht - vspace; 6756 if (0 - vs > 0) 6757 vs = 0; 6758 6759 if (grav != 0) { 6760 if (x - hs < hslack) { 6761 hs = x - hslack; 6762 } 6763 if (x - hs > hspace - hslack) { 6764 hs = x - (hspace - hslack); 6765 } 6766 } 6767 6768 if (grav < 0) { 6769 if (left - hs > 0) 6770 hs = left; 6771 if (right - hs < hspace) 6772 hs = right - hspace; 6773 } else if (grav > 0) { 6774 if (right - hs < hspace) 6775 hs = right - hspace; 6776 if (left - hs > 0) 6777 hs = left; 6778 } else /* grav == 0 */ { 6779 if (right - left <= hspace) { 6780 /* 6781 * If the entire text fits, center it exactly. 6782 */ 6783 hs = left - (hspace - (right - left)) / 2; 6784 } else if (x > right - hslack) { 6785 /* 6786 * If we are near the right edge, keep the right edge 6787 * at the edge of the view. 6788 */ 6789 hs = right - hspace; 6790 } else if (x < left + hslack) { 6791 /* 6792 * If we are near the left edge, keep the left edge 6793 * at the edge of the view. 6794 */ 6795 hs = left; 6796 } else if (left > hs) { 6797 /* 6798 * Is there whitespace visible at the left? Fix it if so. 6799 */ 6800 hs = left; 6801 } else if (right < hs + hspace) { 6802 /* 6803 * Is there whitespace visible at the right? Fix it if so. 6804 */ 6805 hs = right - hspace; 6806 } else { 6807 /* 6808 * Otherwise, float as needed. 6809 */ 6810 if (x - hs < hslack) { 6811 hs = x - hslack; 6812 } 6813 if (x - hs > hspace - hslack) { 6814 hs = x - (hspace - hslack); 6815 } 6816 } 6817 } 6818 6819 if (hs != mScrollX || vs != mScrollY) { 6820 if (mScroller == null) { 6821 scrollTo(hs, vs); 6822 } else { 6823 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 6824 int dx = hs - mScrollX; 6825 int dy = vs - mScrollY; 6826 6827 if (duration > ANIMATED_SCROLL_GAP) { 6828 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 6829 awakenScrollBars(mScroller.getDuration()); 6830 invalidate(); 6831 } else { 6832 if (!mScroller.isFinished()) { 6833 mScroller.abortAnimation(); 6834 } 6835 6836 scrollBy(dx, dy); 6837 } 6838 6839 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 6840 } 6841 6842 changed = true; 6843 } 6844 6845 if (isFocused()) { 6846 // This offsets because getInterestingRect() is in terms of viewport coordinates, but 6847 // requestRectangleOnScreen() is in terms of content coordinates. 6848 6849 if (mTempRect == null) mTempRect = new Rect(); 6850 // The offsets here are to ensure the rectangle we are using is 6851 // within our view bounds, in case the cursor is on the far left 6852 // or right. If it isn't withing the bounds, then this request 6853 // will be ignored. 6854 mTempRect.set(x - 2, top, x + 2, bottom); 6855 getInterestingRect(mTempRect, line); 6856 mTempRect.offset(mScrollX, mScrollY); 6857 6858 if (requestRectangleOnScreen(mTempRect)) { 6859 changed = true; 6860 } 6861 } 6862 6863 return changed; 6864 } 6865 6866 /** 6867 * Move the cursor, if needed, so that it is at an offset that is visible 6868 * to the user. This will not move the cursor if it represents more than 6869 * one character (a selection range). This will only work if the 6870 * TextView contains spannable text; otherwise it will do nothing. 6871 * 6872 * @return True if the cursor was actually moved, false otherwise. 6873 */ 6874 public boolean moveCursorToVisibleOffset() { 6875 if (!(mText instanceof Spannable)) { 6876 return false; 6877 } 6878 int start = getSelectionStart(); 6879 int end = getSelectionEnd(); 6880 if (start != end) { 6881 return false; 6882 } 6883 6884 // First: make sure the line is visible on screen: 6885 6886 int line = mLayout.getLineForOffset(start); 6887 6888 final int top = mLayout.getLineTop(line); 6889 final int bottom = mLayout.getLineTop(line + 1); 6890 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6891 int vslack = (bottom - top) / 2; 6892 if (vslack > vspace / 4) 6893 vslack = vspace / 4; 6894 final int vs = mScrollY; 6895 6896 if (top < (vs+vslack)) { 6897 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 6898 } else if (bottom > (vspace+vs-vslack)) { 6899 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 6900 } 6901 6902 // Next: make sure the character is visible on screen: 6903 6904 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6905 final int hs = mScrollX; 6906 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 6907 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 6908 6909 // line might contain bidirectional text 6910 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 6911 final int highChar = leftChar > rightChar ? leftChar : rightChar; 6912 6913 int newStart = start; 6914 if (newStart < lowChar) { 6915 newStart = lowChar; 6916 } else if (newStart > highChar) { 6917 newStart = highChar; 6918 } 6919 6920 if (newStart != start) { 6921 Selection.setSelection((Spannable)mText, newStart); 6922 return true; 6923 } 6924 6925 return false; 6926 } 6927 6928 @Override 6929 public void computeScroll() { 6930 if (mScroller != null) { 6931 if (mScroller.computeScrollOffset()) { 6932 mScrollX = mScroller.getCurrX(); 6933 mScrollY = mScroller.getCurrY(); 6934 invalidateParentCaches(); 6935 postInvalidate(); // So we draw again 6936 } 6937 } 6938 } 6939 6940 private void getInterestingRect(Rect r, int line) { 6941 convertFromViewportToContentCoordinates(r); 6942 6943 // Rectangle can can be expanded on first and last line to take 6944 // padding into account. 6945 // TODO Take left/right padding into account too? 6946 if (line == 0) r.top -= getExtendedPaddingTop(); 6947 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 6948 } 6949 6950 private void convertFromViewportToContentCoordinates(Rect r) { 6951 final int horizontalOffset = viewportToContentHorizontalOffset(); 6952 r.left += horizontalOffset; 6953 r.right += horizontalOffset; 6954 6955 final int verticalOffset = viewportToContentVerticalOffset(); 6956 r.top += verticalOffset; 6957 r.bottom += verticalOffset; 6958 } 6959 6960 private int viewportToContentHorizontalOffset() { 6961 return getCompoundPaddingLeft() - mScrollX; 6962 } 6963 6964 private int viewportToContentVerticalOffset() { 6965 int offset = getExtendedPaddingTop() - mScrollY; 6966 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 6967 offset += getVerticalOffset(false); 6968 } 6969 return offset; 6970 } 6971 6972 @Override 6973 public void debug(int depth) { 6974 super.debug(depth); 6975 6976 String output = debugIndent(depth); 6977 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 6978 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 6979 + "} "; 6980 6981 if (mText != null) { 6982 6983 output += "mText=\"" + mText + "\" "; 6984 if (mLayout != null) { 6985 output += "mLayout width=" + mLayout.getWidth() 6986 + " height=" + mLayout.getHeight(); 6987 } 6988 } else { 6989 output += "mText=NULL"; 6990 } 6991 Log.d(VIEW_LOG_TAG, output); 6992 } 6993 6994 /** 6995 * Convenience for {@link Selection#getSelectionStart}. 6996 */ 6997 @ViewDebug.ExportedProperty(category = "text") 6998 public int getSelectionStart() { 6999 return Selection.getSelectionStart(getText()); 7000 } 7001 7002 /** 7003 * Convenience for {@link Selection#getSelectionEnd}. 7004 */ 7005 @ViewDebug.ExportedProperty(category = "text") 7006 public int getSelectionEnd() { 7007 return Selection.getSelectionEnd(getText()); 7008 } 7009 7010 /** 7011 * Return true iff there is a selection inside this text view. 7012 */ 7013 public boolean hasSelection() { 7014 final int selectionStart = getSelectionStart(); 7015 final int selectionEnd = getSelectionEnd(); 7016 7017 return selectionStart >= 0 && selectionStart != selectionEnd; 7018 } 7019 7020 /** 7021 * Sets the properties of this field (lines, horizontally scrolling, 7022 * transformation method) to be for a single-line input. 7023 * 7024 * @attr ref android.R.styleable#TextView_singleLine 7025 */ 7026 public void setSingleLine() { 7027 setSingleLine(true); 7028 } 7029 7030 /** 7031 * Sets the properties of this field to transform input to ALL CAPS 7032 * display. This may use a "small caps" formatting if available. 7033 * This setting will be ignored if this field is editable or selectable. 7034 * 7035 * This call replaces the current transformation method. Disabling this 7036 * will not necessarily restore the previous behavior from before this 7037 * was enabled. 7038 * 7039 * @see #setTransformationMethod(TransformationMethod) 7040 * @attr ref android.R.styleable#TextView_textAllCaps 7041 */ 7042 public void setAllCaps(boolean allCaps) { 7043 if (allCaps) { 7044 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 7045 } else { 7046 setTransformationMethod(null); 7047 } 7048 } 7049 7050 /** 7051 * If true, sets the properties of this field (number of lines, horizontally scrolling, 7052 * transformation method) to be for a single-line input; if false, restores these to the default 7053 * conditions. 7054 * 7055 * Note that the default conditions are not necessarily those that were in effect prior this 7056 * method, and you may want to reset these properties to your custom values. 7057 * 7058 * @attr ref android.R.styleable#TextView_singleLine 7059 */ 7060 @android.view.RemotableViewMethod 7061 public void setSingleLine(boolean singleLine) { 7062 // Could be used, but may break backward compatibility. 7063 // if (mSingleLine == singleLine) return; 7064 setInputTypeSingleLine(singleLine); 7065 applySingleLine(singleLine, true, true); 7066 } 7067 7068 /** 7069 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 7070 * @param singleLine 7071 */ 7072 private void setInputTypeSingleLine(boolean singleLine) { 7073 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 7074 if (singleLine) { 7075 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7076 } else { 7077 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7078 } 7079 } 7080 } 7081 7082 private void applySingleLine(boolean singleLine, boolean applyTransformation, 7083 boolean changeMaxLines) { 7084 mSingleLine = singleLine; 7085 if (singleLine) { 7086 setLines(1); 7087 setHorizontallyScrolling(true); 7088 if (applyTransformation) { 7089 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 7090 } 7091 } else { 7092 if (changeMaxLines) { 7093 setMaxLines(Integer.MAX_VALUE); 7094 } 7095 setHorizontallyScrolling(false); 7096 if (applyTransformation) { 7097 setTransformationMethod(null); 7098 } 7099 } 7100 } 7101 7102 /** 7103 * Causes words in the text that are longer than the view is wide 7104 * to be ellipsized instead of broken in the middle. You may also 7105 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 7106 * to constrain the text to a single line. Use <code>null</code> 7107 * to turn off ellipsizing. 7108 * 7109 * @attr ref android.R.styleable#TextView_ellipsize 7110 */ 7111 public void setEllipsize(TextUtils.TruncateAt where) { 7112 // TruncateAt is an enum. != comparison is ok between these singleton objects. 7113 if (mEllipsize != where) { 7114 mEllipsize = where; 7115 7116 if (mLayout != null) { 7117 nullLayouts(); 7118 requestLayout(); 7119 invalidate(); 7120 } 7121 } 7122 } 7123 7124 /** 7125 * Sets how many times to repeat the marquee animation. Only applied if the 7126 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 7127 * 7128 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 7129 */ 7130 public void setMarqueeRepeatLimit(int marqueeLimit) { 7131 mMarqueeRepeatLimit = marqueeLimit; 7132 } 7133 7134 /** 7135 * Returns where, if anywhere, words that are longer than the view 7136 * is wide should be ellipsized. 7137 */ 7138 @ViewDebug.ExportedProperty 7139 public TextUtils.TruncateAt getEllipsize() { 7140 return mEllipsize; 7141 } 7142 7143 /** 7144 * Set the TextView so that when it takes focus, all the text is 7145 * selected. 7146 * 7147 * @attr ref android.R.styleable#TextView_selectAllOnFocus 7148 */ 7149 @android.view.RemotableViewMethod 7150 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 7151 mSelectAllOnFocus = selectAllOnFocus; 7152 7153 if (selectAllOnFocus && !(mText instanceof Spannable)) { 7154 setText(mText, BufferType.SPANNABLE); 7155 } 7156 } 7157 7158 /** 7159 * Set whether the cursor is visible. The default is true. 7160 * 7161 * @attr ref android.R.styleable#TextView_cursorVisible 7162 */ 7163 @android.view.RemotableViewMethod 7164 public void setCursorVisible(boolean visible) { 7165 if (mCursorVisible != visible) { 7166 mCursorVisible = visible; 7167 invalidate(); 7168 7169 makeBlink(); 7170 7171 // InsertionPointCursorController depends on mCursorVisible 7172 prepareCursorControllers(); 7173 } 7174 } 7175 7176 private boolean isCursorVisible() { 7177 return mCursorVisible && isTextEditable(); 7178 } 7179 7180 private boolean canMarquee() { 7181 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 7182 return width > 0 && mLayout.getLineWidth(0) > width; 7183 } 7184 7185 private void startMarquee() { 7186 // Do not ellipsize EditText 7187 if (mInput != null) return; 7188 7189 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 7190 return; 7191 } 7192 7193 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 7194 getLineCount() == 1 && canMarquee()) { 7195 7196 if (mMarquee == null) mMarquee = new Marquee(this); 7197 mMarquee.start(mMarqueeRepeatLimit); 7198 } 7199 } 7200 7201 private void stopMarquee() { 7202 if (mMarquee != null && !mMarquee.isStopped()) { 7203 mMarquee.stop(); 7204 } 7205 } 7206 7207 private void startStopMarquee(boolean start) { 7208 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7209 if (start) { 7210 startMarquee(); 7211 } else { 7212 stopMarquee(); 7213 } 7214 } 7215 } 7216 7217 private static final class Marquee extends Handler { 7218 // TODO: Add an option to configure this 7219 private static final float MARQUEE_DELTA_MAX = 0.07f; 7220 private static final int MARQUEE_DELAY = 1200; 7221 private static final int MARQUEE_RESTART_DELAY = 1200; 7222 private static final int MARQUEE_RESOLUTION = 1000 / 30; 7223 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 7224 7225 private static final byte MARQUEE_STOPPED = 0x0; 7226 private static final byte MARQUEE_STARTING = 0x1; 7227 private static final byte MARQUEE_RUNNING = 0x2; 7228 7229 private static final int MESSAGE_START = 0x1; 7230 private static final int MESSAGE_TICK = 0x2; 7231 private static final int MESSAGE_RESTART = 0x3; 7232 7233 private final WeakReference<TextView> mView; 7234 7235 private byte mStatus = MARQUEE_STOPPED; 7236 private final float mScrollUnit; 7237 private float mMaxScroll; 7238 float mMaxFadeScroll; 7239 private float mGhostStart; 7240 private float mGhostOffset; 7241 private float mFadeStop; 7242 private int mRepeatLimit; 7243 7244 float mScroll; 7245 7246 Marquee(TextView v) { 7247 final float density = v.getContext().getResources().getDisplayMetrics().density; 7248 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 7249 mView = new WeakReference<TextView>(v); 7250 } 7251 7252 @Override 7253 public void handleMessage(Message msg) { 7254 switch (msg.what) { 7255 case MESSAGE_START: 7256 mStatus = MARQUEE_RUNNING; 7257 tick(); 7258 break; 7259 case MESSAGE_TICK: 7260 tick(); 7261 break; 7262 case MESSAGE_RESTART: 7263 if (mStatus == MARQUEE_RUNNING) { 7264 if (mRepeatLimit >= 0) { 7265 mRepeatLimit--; 7266 } 7267 start(mRepeatLimit); 7268 } 7269 break; 7270 } 7271 } 7272 7273 void tick() { 7274 if (mStatus != MARQUEE_RUNNING) { 7275 return; 7276 } 7277 7278 removeMessages(MESSAGE_TICK); 7279 7280 final TextView textView = mView.get(); 7281 if (textView != null && (textView.isFocused() || textView.isSelected())) { 7282 mScroll += mScrollUnit; 7283 if (mScroll > mMaxScroll) { 7284 mScroll = mMaxScroll; 7285 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 7286 } else { 7287 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 7288 } 7289 textView.invalidate(); 7290 } 7291 } 7292 7293 void stop() { 7294 mStatus = MARQUEE_STOPPED; 7295 removeMessages(MESSAGE_START); 7296 removeMessages(MESSAGE_RESTART); 7297 removeMessages(MESSAGE_TICK); 7298 resetScroll(); 7299 } 7300 7301 private void resetScroll() { 7302 mScroll = 0.0f; 7303 final TextView textView = mView.get(); 7304 if (textView != null) textView.invalidate(); 7305 } 7306 7307 void start(int repeatLimit) { 7308 if (repeatLimit == 0) { 7309 stop(); 7310 return; 7311 } 7312 mRepeatLimit = repeatLimit; 7313 final TextView textView = mView.get(); 7314 if (textView != null && textView.mLayout != null) { 7315 mStatus = MARQUEE_STARTING; 7316 mScroll = 0.0f; 7317 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 7318 textView.getCompoundPaddingRight(); 7319 final float lineWidth = textView.mLayout.getLineWidth(0); 7320 final float gap = textWidth / 3.0f; 7321 mGhostStart = lineWidth - textWidth + gap; 7322 mMaxScroll = mGhostStart + textWidth; 7323 mGhostOffset = lineWidth + gap; 7324 mFadeStop = lineWidth + textWidth / 6.0f; 7325 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 7326 7327 textView.invalidate(); 7328 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 7329 } 7330 } 7331 7332 float getGhostOffset() { 7333 return mGhostOffset; 7334 } 7335 7336 boolean shouldDrawLeftFade() { 7337 return mScroll <= mFadeStop; 7338 } 7339 7340 boolean shouldDrawGhost() { 7341 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 7342 } 7343 7344 boolean isRunning() { 7345 return mStatus == MARQUEE_RUNNING; 7346 } 7347 7348 boolean isStopped() { 7349 return mStatus == MARQUEE_STOPPED; 7350 } 7351 } 7352 7353 /** 7354 * This method is called when the text is changed, in case any subclasses 7355 * would like to know. 7356 * 7357 * Within <code>text</code>, the <code>lengthAfter</code> characters 7358 * beginning at <code>start</code> have just replaced old text that had 7359 * length <code>lengthBefore</code>. It is an error to attempt to make 7360 * changes to <code>text</code> from this callback. 7361 * 7362 * @param text The text the TextView is displaying 7363 * @param start The offset of the start of the range of the text that was 7364 * modified 7365 * @param lengthBefore The length of the former text that has been replaced 7366 * @param lengthAfter The length of the replacement modified text 7367 */ 7368 protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { 7369 // intentionally empty 7370 } 7371 7372 /** 7373 * This method is called when the selection has changed, in case any 7374 * subclasses would like to know. 7375 * 7376 * @param selStart The new selection start location. 7377 * @param selEnd The new selection end location. 7378 */ 7379 protected void onSelectionChanged(int selStart, int selEnd) { 7380 sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED); 7381 } 7382 7383 /** 7384 * Adds a TextWatcher to the list of those whose methods are called 7385 * whenever this TextView's text changes. 7386 * <p> 7387 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 7388 * not called after {@link #setText} calls. Now, doing {@link #setText} 7389 * if there are any text changed listeners forces the buffer type to 7390 * Editable if it would not otherwise be and does call this method. 7391 */ 7392 public void addTextChangedListener(TextWatcher watcher) { 7393 if (mListeners == null) { 7394 mListeners = new ArrayList<TextWatcher>(); 7395 } 7396 7397 mListeners.add(watcher); 7398 } 7399 7400 /** 7401 * Removes the specified TextWatcher from the list of those whose 7402 * methods are called 7403 * whenever this TextView's text changes. 7404 */ 7405 public void removeTextChangedListener(TextWatcher watcher) { 7406 if (mListeners != null) { 7407 int i = mListeners.indexOf(watcher); 7408 7409 if (i >= 0) { 7410 mListeners.remove(i); 7411 } 7412 } 7413 } 7414 7415 private void sendBeforeTextChanged(CharSequence text, int start, int before, 7416 int after) { 7417 if (mListeners != null) { 7418 final ArrayList<TextWatcher> list = mListeners; 7419 final int count = list.size(); 7420 for (int i = 0; i < count; i++) { 7421 list.get(i).beforeTextChanged(text, start, before, after); 7422 } 7423 } 7424 } 7425 7426 /** 7427 * Not private so it can be called from an inner class without going 7428 * through a thunk. 7429 */ 7430 void sendOnTextChanged(CharSequence text, int start, int before, 7431 int after) { 7432 if (mListeners != null) { 7433 final ArrayList<TextWatcher> list = mListeners; 7434 final int count = list.size(); 7435 for (int i = 0; i < count; i++) { 7436 list.get(i).onTextChanged(text, start, before, after); 7437 } 7438 } 7439 } 7440 7441 /** 7442 * Not private so it can be called from an inner class without going 7443 * through a thunk. 7444 */ 7445 void sendAfterTextChanged(Editable text) { 7446 if (mListeners != null) { 7447 final ArrayList<TextWatcher> list = mListeners; 7448 final int count = list.size(); 7449 for (int i = 0; i < count; i++) { 7450 list.get(i).afterTextChanged(text); 7451 } 7452 } 7453 } 7454 7455 /** 7456 * Not private so it can be called from an inner class without going 7457 * through a thunk. 7458 */ 7459 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 7460 final InputMethodState ims = mInputMethodState; 7461 if (ims == null || ims.mBatchEditNesting == 0) { 7462 updateAfterEdit(); 7463 } 7464 if (ims != null) { 7465 ims.mContentChanged = true; 7466 if (ims.mChangedStart < 0) { 7467 ims.mChangedStart = start; 7468 ims.mChangedEnd = start+before; 7469 } else { 7470 ims.mChangedStart = Math.min(ims.mChangedStart, start); 7471 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 7472 } 7473 ims.mChangedDelta += after-before; 7474 } 7475 7476 sendOnTextChanged(buffer, start, before, after); 7477 onTextChanged(buffer, start, before, after); 7478 7479 // Hide the controllers if the amount of content changed 7480 if (before != after) { 7481 hideControllers(); 7482 } 7483 } 7484 7485 /** 7486 * Not private so it can be called from an inner class without going 7487 * through a thunk. 7488 */ 7489 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 7490 // XXX Make the start and end move together if this ends up 7491 // spending too much time invalidating. 7492 7493 boolean selChanged = false; 7494 int newSelStart=-1, newSelEnd=-1; 7495 7496 final InputMethodState ims = mInputMethodState; 7497 7498 if (what == Selection.SELECTION_END) { 7499 mHighlightPathBogus = true; 7500 selChanged = true; 7501 newSelEnd = newStart; 7502 7503 if (!isFocused()) { 7504 mSelectionMoved = true; 7505 } 7506 7507 if (oldStart >= 0 || newStart >= 0) { 7508 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 7509 registerForPreDraw(); 7510 makeBlink(); 7511 } 7512 } 7513 7514 if (what == Selection.SELECTION_START) { 7515 mHighlightPathBogus = true; 7516 selChanged = true; 7517 newSelStart = newStart; 7518 7519 if (!isFocused()) { 7520 mSelectionMoved = true; 7521 } 7522 7523 if (oldStart >= 0 || newStart >= 0) { 7524 int end = Selection.getSelectionEnd(buf); 7525 invalidateCursor(end, oldStart, newStart); 7526 } 7527 } 7528 7529 if (selChanged) { 7530 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 7531 if (newSelStart < 0) { 7532 newSelStart = Selection.getSelectionStart(buf); 7533 } 7534 if (newSelEnd < 0) { 7535 newSelEnd = Selection.getSelectionEnd(buf); 7536 } 7537 onSelectionChanged(newSelStart, newSelEnd); 7538 } 7539 } 7540 7541 if (what instanceof UpdateAppearance || 7542 what instanceof ParagraphStyle) { 7543 if (ims == null || ims.mBatchEditNesting == 0) { 7544 invalidate(); 7545 mHighlightPathBogus = true; 7546 checkForResize(); 7547 } else { 7548 ims.mContentChanged = true; 7549 } 7550 } 7551 7552 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 7553 mHighlightPathBogus = true; 7554 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 7555 ims.mSelectionModeChanged = true; 7556 } 7557 7558 if (Selection.getSelectionStart(buf) >= 0) { 7559 if (ims == null || ims.mBatchEditNesting == 0) { 7560 invalidateCursor(); 7561 } else { 7562 ims.mCursorChanged = true; 7563 } 7564 } 7565 } 7566 7567 if (what instanceof ParcelableSpan) { 7568 // If this is a span that can be sent to a remote process, 7569 // the current extract editor would be interested in it. 7570 if (ims != null && ims.mExtracting != null) { 7571 if (ims.mBatchEditNesting != 0) { 7572 if (oldStart >= 0) { 7573 if (ims.mChangedStart > oldStart) { 7574 ims.mChangedStart = oldStart; 7575 } 7576 if (ims.mChangedStart > oldEnd) { 7577 ims.mChangedStart = oldEnd; 7578 } 7579 } 7580 if (newStart >= 0) { 7581 if (ims.mChangedStart > newStart) { 7582 ims.mChangedStart = newStart; 7583 } 7584 if (ims.mChangedStart > newEnd) { 7585 ims.mChangedStart = newEnd; 7586 } 7587 } 7588 } else { 7589 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 7590 + oldStart + "-" + oldEnd + "," 7591 + newStart + "-" + newEnd + what); 7592 ims.mContentChanged = true; 7593 } 7594 } 7595 } 7596 } 7597 7598 private class ChangeWatcher 7599 implements TextWatcher, SpanWatcher { 7600 7601 private CharSequence mBeforeText; 7602 7603 public void beforeTextChanged(CharSequence buffer, int start, 7604 int before, int after) { 7605 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 7606 + " before=" + before + " after=" + after + ": " + buffer); 7607 7608 if (AccessibilityManager.getInstance(mContext).isEnabled() 7609 && !isPasswordInputType(mInputType) 7610 && !hasPasswordTransformationMethod()) { 7611 mBeforeText = buffer.toString(); 7612 } 7613 7614 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 7615 } 7616 7617 public void onTextChanged(CharSequence buffer, int start, 7618 int before, int after) { 7619 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 7620 + " before=" + before + " after=" + after + ": " + buffer); 7621 TextView.this.handleTextChanged(buffer, start, before, after); 7622 7623 if (AccessibilityManager.getInstance(mContext).isEnabled() && 7624 (isFocused() || isSelected() && 7625 isShown())) { 7626 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 7627 mBeforeText = null; 7628 } 7629 } 7630 7631 public void afterTextChanged(Editable buffer) { 7632 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 7633 TextView.this.sendAfterTextChanged(buffer); 7634 7635 if (MetaKeyKeyListener.getMetaState(buffer, 7636 MetaKeyKeyListener.META_SELECTING) != 0) { 7637 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 7638 } 7639 } 7640 7641 public void onSpanChanged(Spannable buf, 7642 Object what, int s, int e, int st, int en) { 7643 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 7644 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 7645 TextView.this.spanChange(buf, what, s, st, e, en); 7646 } 7647 7648 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 7649 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 7650 + " what=" + what + ": " + buf); 7651 TextView.this.spanChange(buf, what, -1, s, -1, e); 7652 } 7653 7654 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 7655 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 7656 + " what=" + what + ": " + buf); 7657 TextView.this.spanChange(buf, what, s, -1, e, -1); 7658 } 7659 } 7660 7661 /** 7662 * @hide 7663 */ 7664 @Override 7665 public void dispatchFinishTemporaryDetach() { 7666 mDispatchTemporaryDetach = true; 7667 super.dispatchFinishTemporaryDetach(); 7668 mDispatchTemporaryDetach = false; 7669 } 7670 7671 @Override 7672 public void onStartTemporaryDetach() { 7673 super.onStartTemporaryDetach(); 7674 // Only track when onStartTemporaryDetach() is called directly, 7675 // usually because this instance is an editable field in a list 7676 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 7677 7678 // Because of View recycling in ListView, there is no easy way to know when a TextView with 7679 // selection becomes visible again. Until a better solution is found, stop text selection 7680 // mode (if any) as soon as this TextView is recycled. 7681 hideControllers(); 7682 } 7683 7684 @Override 7685 public void onFinishTemporaryDetach() { 7686 super.onFinishTemporaryDetach(); 7687 // Only track when onStartTemporaryDetach() is called directly, 7688 // usually because this instance is an editable field in a list 7689 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 7690 } 7691 7692 @Override 7693 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 7694 if (mTemporaryDetach) { 7695 // If we are temporarily in the detach state, then do nothing. 7696 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7697 return; 7698 } 7699 7700 mShowCursor = SystemClock.uptimeMillis(); 7701 7702 ensureEndedBatchEdit(); 7703 7704 if (focused) { 7705 int selStart = getSelectionStart(); 7706 int selEnd = getSelectionEnd(); 7707 7708 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 7709 // mode for these, unless there was a specific selection already started. 7710 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 7711 selEnd == mText.length(); 7712 mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted; 7713 7714 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 7715 // If a tap was used to give focus to that view, move cursor at tap position. 7716 // Has to be done before onTakeFocus, which can be overloaded. 7717 final int lastTapPosition = getLastTapPosition(); 7718 if (lastTapPosition >= 0) { 7719 Selection.setSelection((Spannable) mText, lastTapPosition); 7720 } 7721 7722 if (mMovement != null) { 7723 mMovement.onTakeFocus(this, (Spannable) mText, direction); 7724 } 7725 7726 // The DecorView does not have focus when the 'Done' ExtractEditText button is 7727 // pressed. Since it is the ViewAncestor's mView, it requests focus before 7728 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 7729 // This special case ensure that we keep current selection in that case. 7730 // It would be better to know why the DecorView does not have focus at that time. 7731 if (((this instanceof ExtractEditText) || mSelectionMoved) && 7732 selStart >= 0 && selEnd >= 0) { 7733 /* 7734 * Someone intentionally set the selection, so let them 7735 * do whatever it is that they wanted to do instead of 7736 * the default on-focus behavior. We reset the selection 7737 * here instead of just skipping the onTakeFocus() call 7738 * because some movement methods do something other than 7739 * just setting the selection in theirs and we still 7740 * need to go through that path. 7741 */ 7742 Selection.setSelection((Spannable) mText, selStart, selEnd); 7743 } 7744 7745 if (mSelectAllOnFocus) { 7746 selectAll(); 7747 } 7748 7749 mTouchFocusSelected = true; 7750 } 7751 7752 mFrozenWithFocus = false; 7753 mSelectionMoved = false; 7754 7755 if (mText instanceof Spannable) { 7756 Spannable sp = (Spannable) mText; 7757 MetaKeyKeyListener.resetMetaState(sp); 7758 } 7759 7760 makeBlink(); 7761 7762 if (mError != null) { 7763 showError(); 7764 } 7765 } else { 7766 if (mError != null) { 7767 hideError(); 7768 } 7769 // Don't leave us in the middle of a batch edit. 7770 onEndBatchEdit(); 7771 7772 if (this instanceof ExtractEditText) { 7773 // terminateTextSelectionMode removes selection, which we want to keep when 7774 // ExtractEditText goes out of focus. 7775 final int selStart = getSelectionStart(); 7776 final int selEnd = getSelectionEnd(); 7777 hideControllers(); 7778 Selection.setSelection((Spannable) mText, selStart, selEnd); 7779 } else { 7780 hideControllers(); 7781 } 7782 7783 // No need to create the controller 7784 if (mSelectionModifierCursorController != null) { 7785 mSelectionModifierCursorController.resetTouchOffsets(); 7786 } 7787 } 7788 7789 startStopMarquee(focused); 7790 7791 if (mTransformation != null) { 7792 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 7793 } 7794 7795 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7796 } 7797 7798 private int getLastTapPosition() { 7799 // No need to create the controller at that point, no last tap position saved 7800 if (mSelectionModifierCursorController != null) { 7801 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 7802 if (lastTapPosition >= 0) { 7803 // Safety check, should not be possible. 7804 if (lastTapPosition > mText.length()) { 7805 Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs " 7806 + mText.length() + ")"); 7807 lastTapPosition = mText.length(); 7808 } 7809 return lastTapPosition; 7810 } 7811 } 7812 7813 return -1; 7814 } 7815 7816 @Override 7817 public void onWindowFocusChanged(boolean hasWindowFocus) { 7818 super.onWindowFocusChanged(hasWindowFocus); 7819 7820 if (hasWindowFocus) { 7821 if (mBlink != null) { 7822 mBlink.uncancel(); 7823 makeBlink(); 7824 } 7825 } else { 7826 if (mBlink != null) { 7827 mBlink.cancel(); 7828 } 7829 // Don't leave us in the middle of a batch edit. 7830 onEndBatchEdit(); 7831 if (mInputContentType != null) { 7832 mInputContentType.enterDown = false; 7833 } 7834 hideControllers(); 7835 removeAllSuggestionSpans(); 7836 } 7837 7838 startStopMarquee(hasWindowFocus); 7839 } 7840 7841 private void removeAllSuggestionSpans() { 7842 if (mText instanceof Editable) { 7843 Editable editable = ((Editable) mText); 7844 SuggestionSpan[] spans = editable.getSpans(0, mText.length(), SuggestionSpan.class); 7845 final int length = spans.length; 7846 for (int i = 0; i < length; i++) { 7847 editable.removeSpan(spans[i]); 7848 } 7849 } 7850 } 7851 7852 @Override 7853 protected void onVisibilityChanged(View changedView, int visibility) { 7854 super.onVisibilityChanged(changedView, visibility); 7855 if (visibility != VISIBLE) { 7856 hideControllers(); 7857 } 7858 } 7859 7860 /** 7861 * Use {@link BaseInputConnection#removeComposingSpans 7862 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 7863 * state from this text view. 7864 */ 7865 public void clearComposingText() { 7866 if (mText instanceof Spannable) { 7867 BaseInputConnection.removeComposingSpans((Spannable)mText); 7868 } 7869 } 7870 7871 @Override 7872 public void setSelected(boolean selected) { 7873 boolean wasSelected = isSelected(); 7874 7875 super.setSelected(selected); 7876 7877 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7878 if (selected) { 7879 startMarquee(); 7880 } else { 7881 stopMarquee(); 7882 } 7883 } 7884 } 7885 7886 @Override 7887 public boolean onTouchEvent(MotionEvent event) { 7888 final int action = event.getActionMasked(); 7889 7890 if (hasSelectionController()) { 7891 getSelectionController().onTouchEvent(event); 7892 } 7893 7894 if (action == MotionEvent.ACTION_DOWN) { 7895 mLastDownPositionX = event.getX(); 7896 mLastDownPositionY = event.getY(); 7897 7898 // Reset this state; it will be re-set if super.onTouchEvent 7899 // causes focus to move to the view. 7900 mTouchFocusSelected = false; 7901 mIgnoreActionUpEvent = false; 7902 } 7903 7904 final boolean superResult = super.onTouchEvent(event); 7905 7906 /* 7907 * Don't handle the release after a long press, because it will 7908 * move the selection away from whatever the menu action was 7909 * trying to affect. 7910 */ 7911 if (mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 7912 mDiscardNextActionUp = false; 7913 return superResult; 7914 } 7915 7916 final boolean touchIsFinished = action == MotionEvent.ACTION_UP && !mIgnoreActionUpEvent && 7917 isFocused(); 7918 7919 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 7920 && mText instanceof Spannable && mLayout != null) { 7921 boolean handled = false; 7922 7923 if (mMovement != null) { 7924 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 7925 } 7926 7927 if (mLinksClickable && mAutoLinkMask != 0 && mTextIsSelectable && touchIsFinished) { 7928 // The LinkMovementMethod which should handle taps on links has not been installed 7929 // to support text selection. We reproduce its behavior here to open links. 7930 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 7931 getSelectionEnd(), ClickableSpan.class); 7932 7933 if (links.length != 0) { 7934 links[0].onClick(this); 7935 handled = true; 7936 } 7937 } 7938 7939 if ((isTextEditable() || mTextIsSelectable) && touchIsFinished) { 7940 // Show the IME, except when selecting in read-only text. 7941 final InputMethodManager imm = InputMethodManager.peekInstance(); 7942 if (imm != null) { 7943 imm.viewClicked(this); 7944 } 7945 if (!mTextIsSelectable) { 7946 handled |= imm != null && imm.showSoftInput(this, 0); 7947 } 7948 7949 boolean selectAllGotFocus = mSelectAllOnFocus && didTouchFocusSelect(); 7950 if (!selectAllGotFocus && hasSelection()) { 7951 startSelectionActionMode(); 7952 } else { 7953 hideControllers(); 7954 if (hasInsertionController() && !selectAllGotFocus && mText.length() > 0) { 7955 getInsertionController().show(); 7956 } 7957 } 7958 } 7959 7960 if (handled) { 7961 return true; 7962 } 7963 } 7964 7965 return superResult; 7966 } 7967 7968 @Override 7969 public boolean onGenericMotionEvent(MotionEvent event) { 7970 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 7971 try { 7972 if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) { 7973 return true; 7974 } 7975 } catch (AbstractMethodError ex) { 7976 // onGenericMotionEvent was added to the MovementMethod interface in API 12. 7977 // Ignore its absence in case third party applications implemented the 7978 // interface directly. 7979 } 7980 } 7981 return super.onGenericMotionEvent(event); 7982 } 7983 7984 private void prepareCursorControllers() { 7985 boolean windowSupportsHandles = false; 7986 7987 ViewGroup.LayoutParams params = getRootView().getLayoutParams(); 7988 if (params instanceof WindowManager.LayoutParams) { 7989 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 7990 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 7991 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 7992 } 7993 7994 mInsertionControllerEnabled = windowSupportsHandles && isCursorVisible() && mLayout != null; 7995 mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() && 7996 mLayout != null; 7997 7998 if (!mInsertionControllerEnabled) { 7999 hideInsertionPointCursorController(); 8000 if (mInsertionPointCursorController != null) { 8001 mInsertionPointCursorController.onDetached(); 8002 mInsertionPointCursorController = null; 8003 } 8004 } 8005 8006 if (!mSelectionControllerEnabled) { 8007 stopSelectionActionMode(); 8008 if (mSelectionModifierCursorController != null) { 8009 mSelectionModifierCursorController.onDetached(); 8010 mSelectionModifierCursorController = null; 8011 } 8012 } 8013 } 8014 8015 /** 8016 * @return True iff this TextView contains a text that can be edited, or if this is 8017 * a selectable TextView. 8018 */ 8019 private boolean isTextEditable() { 8020 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 8021 } 8022 8023 /** 8024 * Returns true, only while processing a touch gesture, if the initial 8025 * touch down event caused focus to move to the text view and as a result 8026 * its selection changed. Only valid while processing the touch gesture 8027 * of interest. 8028 */ 8029 public boolean didTouchFocusSelect() { 8030 return mTouchFocusSelected; 8031 } 8032 8033 @Override 8034 public void cancelLongPress() { 8035 super.cancelLongPress(); 8036 mIgnoreActionUpEvent = true; 8037 } 8038 8039 @Override 8040 public boolean onTrackballEvent(MotionEvent event) { 8041 if (mMovement != null && mText instanceof Spannable && 8042 mLayout != null) { 8043 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 8044 return true; 8045 } 8046 } 8047 8048 return super.onTrackballEvent(event); 8049 } 8050 8051 public void setScroller(Scroller s) { 8052 mScroller = s; 8053 } 8054 8055 private static class Blink extends Handler implements Runnable { 8056 private final WeakReference<TextView> mView; 8057 private boolean mCancelled; 8058 8059 public Blink(TextView v) { 8060 mView = new WeakReference<TextView>(v); 8061 } 8062 8063 public void run() { 8064 if (mCancelled) { 8065 return; 8066 } 8067 8068 removeCallbacks(Blink.this); 8069 8070 TextView tv = mView.get(); 8071 8072 if (tv != null && tv.shouldBlink()) { 8073 if (tv.mLayout != null) { 8074 tv.invalidateCursorPath(); 8075 } 8076 8077 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 8078 } 8079 } 8080 8081 void cancel() { 8082 if (!mCancelled) { 8083 removeCallbacks(Blink.this); 8084 mCancelled = true; 8085 } 8086 } 8087 8088 void uncancel() { 8089 mCancelled = false; 8090 } 8091 } 8092 8093 /** 8094 * @return True when the TextView isFocused and has a valid zero-length selection (cursor). 8095 */ 8096 private boolean shouldBlink() { 8097 if (!isFocused()) return false; 8098 8099 final int start = getSelectionStart(); 8100 if (start < 0) return false; 8101 8102 final int end = getSelectionEnd(); 8103 if (end < 0) return false; 8104 8105 return start == end; 8106 } 8107 8108 private void makeBlink() { 8109 if (isCursorVisible()) { 8110 if (shouldBlink()) { 8111 mShowCursor = SystemClock.uptimeMillis(); 8112 if (mBlink == null) mBlink = new Blink(this); 8113 mBlink.removeCallbacks(mBlink); 8114 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 8115 } 8116 } else { 8117 if (mBlink != null) mBlink.removeCallbacks(mBlink); 8118 } 8119 } 8120 8121 @Override 8122 protected float getLeftFadingEdgeStrength() { 8123 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 8124 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 8125 if (mMarquee != null && !mMarquee.isStopped()) { 8126 final Marquee marquee = mMarquee; 8127 if (marquee.shouldDrawLeftFade()) { 8128 return marquee.mScroll / getHorizontalFadingEdgeLength(); 8129 } else { 8130 return 0.0f; 8131 } 8132 } else if (getLineCount() == 1) { 8133 final int layoutDirection = getResolvedLayoutDirection(); 8134 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 8135 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 8136 case Gravity.LEFT: 8137 return 0.0f; 8138 case Gravity.RIGHT: 8139 return (mLayout.getLineRight(0) - (mRight - mLeft) - 8140 getCompoundPaddingLeft() - getCompoundPaddingRight() - 8141 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 8142 case Gravity.CENTER_HORIZONTAL: 8143 return 0.0f; 8144 } 8145 } 8146 } 8147 return super.getLeftFadingEdgeStrength(); 8148 } 8149 8150 @Override 8151 protected float getRightFadingEdgeStrength() { 8152 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 8153 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 8154 if (mMarquee != null && !mMarquee.isStopped()) { 8155 final Marquee marquee = mMarquee; 8156 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 8157 } else if (getLineCount() == 1) { 8158 final int layoutDirection = getResolvedLayoutDirection(); 8159 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 8160 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 8161 case Gravity.LEFT: 8162 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 8163 getCompoundPaddingRight(); 8164 final float lineWidth = mLayout.getLineWidth(0); 8165 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 8166 case Gravity.RIGHT: 8167 return 0.0f; 8168 case Gravity.CENTER_HORIZONTAL: 8169 case Gravity.FILL_HORIZONTAL: 8170 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 8171 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 8172 getHorizontalFadingEdgeLength(); 8173 } 8174 } 8175 } 8176 return super.getRightFadingEdgeStrength(); 8177 } 8178 8179 @Override 8180 protected int computeHorizontalScrollRange() { 8181 if (mLayout != null) { 8182 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 8183 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 8184 } 8185 8186 return super.computeHorizontalScrollRange(); 8187 } 8188 8189 @Override 8190 protected int computeVerticalScrollRange() { 8191 if (mLayout != null) 8192 return mLayout.getHeight(); 8193 8194 return super.computeVerticalScrollRange(); 8195 } 8196 8197 @Override 8198 protected int computeVerticalScrollExtent() { 8199 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 8200 } 8201 8202 @Override 8203 public void findViewsWithText(ArrayList<View> outViews, CharSequence searched) { 8204 if (TextUtils.isEmpty(searched)) { 8205 return; 8206 } 8207 CharSequence thisText = getText(); 8208 if (TextUtils.isEmpty(thisText)) { 8209 return; 8210 } 8211 String searchedLowerCase = searched.toString().toLowerCase(); 8212 String thisTextLowerCase = thisText.toString().toLowerCase(); 8213 if (thisTextLowerCase.contains(searchedLowerCase)) { 8214 outViews.add(this); 8215 } 8216 } 8217 8218 public enum BufferType { 8219 NORMAL, SPANNABLE, EDITABLE, 8220 } 8221 8222 /** 8223 * Returns the TextView_textColor attribute from the 8224 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 8225 * from the TextView_textAppearance attribute, if TextView_textColor 8226 * was not set directly. 8227 */ 8228 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 8229 ColorStateList colors; 8230 colors = attrs.getColorStateList(com.android.internal.R.styleable. 8231 TextView_textColor); 8232 8233 if (colors == null) { 8234 int ap = attrs.getResourceId(com.android.internal.R.styleable. 8235 TextView_textAppearance, -1); 8236 if (ap != -1) { 8237 TypedArray appearance; 8238 appearance = context.obtainStyledAttributes(ap, 8239 com.android.internal.R.styleable.TextAppearance); 8240 colors = appearance.getColorStateList(com.android.internal.R.styleable. 8241 TextAppearance_textColor); 8242 appearance.recycle(); 8243 } 8244 } 8245 8246 return colors; 8247 } 8248 8249 /** 8250 * Returns the default color from the TextView_textColor attribute 8251 * from the AttributeSet, if set, or the default color from the 8252 * TextAppearance_textColor from the TextView_textAppearance attribute, 8253 * if TextView_textColor was not set directly. 8254 */ 8255 public static int getTextColor(Context context, 8256 TypedArray attrs, 8257 int def) { 8258 ColorStateList colors = getTextColors(context, attrs); 8259 8260 if (colors == null) { 8261 return def; 8262 } else { 8263 return colors.getDefaultColor(); 8264 } 8265 } 8266 8267 @Override 8268 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 8269 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 8270 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 8271 switch (keyCode) { 8272 case KeyEvent.KEYCODE_A: 8273 if (canSelectText()) { 8274 return onTextContextMenuItem(ID_SELECT_ALL); 8275 } 8276 break; 8277 case KeyEvent.KEYCODE_X: 8278 if (canCut()) { 8279 return onTextContextMenuItem(ID_CUT); 8280 } 8281 break; 8282 case KeyEvent.KEYCODE_C: 8283 if (canCopy()) { 8284 return onTextContextMenuItem(ID_COPY); 8285 } 8286 break; 8287 case KeyEvent.KEYCODE_V: 8288 if (canPaste()) { 8289 return onTextContextMenuItem(ID_PASTE); 8290 } 8291 break; 8292 } 8293 } 8294 return super.onKeyShortcut(keyCode, event); 8295 } 8296 8297 /** 8298 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 8299 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 8300 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 8301 */ 8302 private boolean canSelectText() { 8303 return hasSelectionController() && mText.length() != 0; 8304 } 8305 8306 /** 8307 * Test based on the <i>intrinsic</i> charateristics of the TextView. 8308 * The text must be spannable and the movement method must allow for arbitary selection. 8309 * 8310 * See also {@link #canSelectText()}. 8311 */ 8312 private boolean textCanBeSelected() { 8313 // prepareCursorController() relies on this method. 8314 // If you change this condition, make sure prepareCursorController is called anywhere 8315 // the value of this condition might be changed. 8316 if (mMovement == null || !mMovement.canSelectArbitrarily()) return false; 8317 return isTextEditable() || (mTextIsSelectable && mText instanceof Spannable && isEnabled()); 8318 } 8319 8320 private boolean canCut() { 8321 if (hasPasswordTransformationMethod()) { 8322 return false; 8323 } 8324 8325 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mInput != null) { 8326 return true; 8327 } 8328 8329 return false; 8330 } 8331 8332 private boolean canCopy() { 8333 if (hasPasswordTransformationMethod()) { 8334 return false; 8335 } 8336 8337 if (mText.length() > 0 && hasSelection()) { 8338 return true; 8339 } 8340 8341 return false; 8342 } 8343 8344 private boolean canPaste() { 8345 return (mText instanceof Editable && 8346 mInput != null && 8347 getSelectionStart() >= 0 && 8348 getSelectionEnd() >= 0 && 8349 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 8350 hasPrimaryClip()); 8351 } 8352 8353 private static long packRangeInLong(int start, int end) { 8354 return (((long) start) << 32) | end; 8355 } 8356 8357 private static int extractRangeStartFromLong(long range) { 8358 return (int) (range >>> 32); 8359 } 8360 8361 private static int extractRangeEndFromLong(long range) { 8362 return (int) (range & 0x00000000FFFFFFFFL); 8363 } 8364 8365 private boolean selectAll() { 8366 final int length = mText.length(); 8367 Selection.setSelection((Spannable) mText, 0, length); 8368 return length > 0; 8369 } 8370 8371 /** 8372 * Adjusts selection to the word under last touch offset. 8373 * Return true if the operation was successfully performed. 8374 */ 8375 private boolean selectCurrentWord() { 8376 if (!canSelectText()) { 8377 return false; 8378 } 8379 8380 if (hasPasswordTransformationMethod()) { 8381 // Always select all on a password field. 8382 // Cut/copy menu entries are not available for passwords, but being able to select all 8383 // is however useful to delete or paste to replace the entire content. 8384 return selectAll(); 8385 } 8386 8387 int klass = mInputType & InputType.TYPE_MASK_CLASS; 8388 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 8389 8390 // Specific text field types: select the entire text for these 8391 if (klass == InputType.TYPE_CLASS_NUMBER || 8392 klass == InputType.TYPE_CLASS_PHONE || 8393 klass == InputType.TYPE_CLASS_DATETIME || 8394 variation == InputType.TYPE_TEXT_VARIATION_URI || 8395 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 8396 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 8397 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 8398 return selectAll(); 8399 } 8400 8401 long lastTouchOffsets = getLastTouchOffsets(); 8402 final int minOffset = extractRangeStartFromLong(lastTouchOffsets); 8403 final int maxOffset = extractRangeEndFromLong(lastTouchOffsets); 8404 8405 // Safety check in case standard touch event handling has been bypassed 8406 if (minOffset < 0 || minOffset >= mText.length()) return false; 8407 if (maxOffset < 0 || maxOffset >= mText.length()) return false; 8408 8409 int selectionStart, selectionEnd; 8410 8411 // If a URLSpan (web address, email, phone...) is found at that position, select it. 8412 URLSpan[] urlSpans = ((Spanned) mText).getSpans(minOffset, maxOffset, URLSpan.class); 8413 if (urlSpans.length == 1) { 8414 URLSpan url = urlSpans[0]; 8415 selectionStart = ((Spanned) mText).getSpanStart(url); 8416 selectionEnd = ((Spanned) mText).getSpanEnd(url); 8417 } else { 8418 if (mWordIterator == null) { 8419 mWordIterator = new WordIterator(); 8420 } 8421 // WordIerator handles text changes, this is a no-op if text in unchanged. 8422 mWordIterator.setCharSequence(mText); 8423 8424 selectionStart = mWordIterator.getBeginning(minOffset); 8425 if (selectionStart == BreakIterator.DONE) return false; 8426 8427 selectionEnd = mWordIterator.getEnd(maxOffset); 8428 if (selectionEnd == BreakIterator.DONE) return false; 8429 } 8430 8431 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8432 return true; 8433 } 8434 8435 private long getLastTouchOffsets() { 8436 int minOffset, maxOffset; 8437 8438 if (mContextMenuTriggeredByKey) { 8439 minOffset = getSelectionStart(); 8440 maxOffset = getSelectionEnd(); 8441 } else { 8442 SelectionModifierCursorController selectionController = getSelectionController(); 8443 minOffset = selectionController.getMinTouchOffset(); 8444 maxOffset = selectionController.getMaxTouchOffset(); 8445 } 8446 8447 return packRangeInLong(minOffset, maxOffset); 8448 } 8449 8450 @Override 8451 public void onPopulateAccessibilityEvent(AccessibilityEvent event) { 8452 super.onPopulateAccessibilityEvent(event); 8453 8454 final boolean isPassword = hasPasswordTransformationMethod(); 8455 if (!isPassword) { 8456 CharSequence text = getText(); 8457 if (TextUtils.isEmpty(text)) { 8458 text = getHint(); 8459 } 8460 if (TextUtils.isEmpty(text)) { 8461 text = getContentDescription(); 8462 } 8463 if (!TextUtils.isEmpty(text)) { 8464 event.getText().add(text); 8465 } 8466 } 8467 } 8468 8469 @Override 8470 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 8471 super.onInitializeAccessibilityEvent(event); 8472 8473 final boolean isPassword = hasPasswordTransformationMethod(); 8474 event.setPassword(isPassword); 8475 8476 if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED) { 8477 event.setFromIndex(Selection.getSelectionStart(mText)); 8478 event.setToIndex(Selection.getSelectionEnd(mText)); 8479 event.setItemCount(mText.length()); 8480 } 8481 } 8482 8483 @Override 8484 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 8485 super.onInitializeAccessibilityNodeInfo(info); 8486 8487 final boolean isPassword = hasPasswordTransformationMethod(); 8488 if (!isPassword) { 8489 info.setText(getText()); 8490 } 8491 info.setPassword(isPassword); 8492 } 8493 8494 @Override 8495 public void sendAccessibilityEvent(int eventType) { 8496 // Do not send scroll events since first they are not interesting for 8497 // accessibility and second such events a generated too frequently. 8498 // For details see the implementation of bringTextIntoView(). 8499 if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 8500 return; 8501 } 8502 super.sendAccessibilityEvent(eventType); 8503 } 8504 8505 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 8506 int fromIndex, int removedCount, int addedCount) { 8507 AccessibilityEvent event = 8508 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 8509 event.setFromIndex(fromIndex); 8510 event.setRemovedCount(removedCount); 8511 event.setAddedCount(addedCount); 8512 event.setBeforeText(beforeText); 8513 sendAccessibilityEventUnchecked(event); 8514 } 8515 8516 @Override 8517 protected void onCreateContextMenu(ContextMenu menu) { 8518 super.onCreateContextMenu(menu); 8519 boolean added = false; 8520 mContextMenuTriggeredByKey = mDPadCenterIsDown || mEnterKeyIsDown; 8521 // Problem with context menu on long press: the menu appears while the key in down and when 8522 // the key is released, the view does not receive the key_up event. 8523 // We need two layers of flags: mDPadCenterIsDown and mEnterKeyIsDown are set in key down/up 8524 // events. We cannot simply clear these flags in onTextContextMenuItem since 8525 // it may not be called (if the user/ discards the context menu with the back key). 8526 // We clear these flags here and mContextMenuTriggeredByKey saves that state so that it is 8527 // available in onTextContextMenuItem. 8528 mDPadCenterIsDown = mEnterKeyIsDown = false; 8529 8530 MenuHandler handler = new MenuHandler(); 8531 8532 if (mText instanceof Spanned && hasSelectionController()) { 8533 long lastTouchOffset = getLastTouchOffsets(); 8534 final int selStart = extractRangeStartFromLong(lastTouchOffset); 8535 final int selEnd = extractRangeEndFromLong(lastTouchOffset); 8536 8537 URLSpan[] urls = ((Spanned) mText).getSpans(selStart, selEnd, URLSpan.class); 8538 if (urls.length > 0) { 8539 menu.add(0, ID_COPY_URL, 0, com.android.internal.R.string.copyUrl). 8540 setOnMenuItemClickListener(handler); 8541 8542 added = true; 8543 } 8544 } 8545 8546 // The context menu is not empty, which will prevent the selection mode from starting. 8547 // Add a entry to start it in the context menu. 8548 // TODO Does not handle the case where a subclass does not call super.thisMethod or 8549 // populates the menu AFTER this call. 8550 if (menu.size() > 0) { 8551 menu.add(0, ID_SELECTION_MODE, 0, com.android.internal.R.string.selectTextMode). 8552 setOnMenuItemClickListener(handler); 8553 added = true; 8554 } 8555 8556 if (added) { 8557 menu.setHeaderTitle(com.android.internal.R.string.editTextMenuTitle); 8558 } 8559 } 8560 8561 /** 8562 * Returns whether this text view is a current input method target. The 8563 * default implementation just checks with {@link InputMethodManager}. 8564 */ 8565 public boolean isInputMethodTarget() { 8566 InputMethodManager imm = InputMethodManager.peekInstance(); 8567 return imm != null && imm.isActive(this); 8568 } 8569 8570 // Selection context mode 8571 private static final int ID_SELECT_ALL = android.R.id.selectAll; 8572 private static final int ID_CUT = android.R.id.cut; 8573 private static final int ID_COPY = android.R.id.copy; 8574 private static final int ID_PASTE = android.R.id.paste; 8575 // Context menu entries 8576 private static final int ID_COPY_URL = android.R.id.copyUrl; 8577 private static final int ID_SELECTION_MODE = android.R.id.selectTextMode; 8578 8579 private class MenuHandler implements MenuItem.OnMenuItemClickListener { 8580 public boolean onMenuItemClick(MenuItem item) { 8581 return onTextContextMenuItem(item.getItemId()); 8582 } 8583 } 8584 8585 /** 8586 * Called when a context menu option for the text view is selected. Currently 8587 * this will be {@link android.R.id#copyUrl}, {@link android.R.id#selectTextMode}, 8588 * {@link android.R.id#selectAll}, {@link android.R.id#paste}, {@link android.R.id#cut} 8589 * or {@link android.R.id#copy}. 8590 * 8591 * @return true if the context menu item action was performed. 8592 */ 8593 public boolean onTextContextMenuItem(int id) { 8594 int min = 0; 8595 int max = mText.length(); 8596 8597 if (isFocused()) { 8598 final int selStart = getSelectionStart(); 8599 final int selEnd = getSelectionEnd(); 8600 8601 min = Math.max(0, Math.min(selStart, selEnd)); 8602 max = Math.max(0, Math.max(selStart, selEnd)); 8603 } 8604 8605 switch (id) { 8606 case ID_COPY_URL: 8607 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, URLSpan.class); 8608 if (urls.length >= 1) { 8609 ClipData clip = null; 8610 for (int i=0; i<urls.length; i++) { 8611 Uri uri = Uri.parse(urls[0].getURL()); 8612 if (clip == null) { 8613 clip = ClipData.newRawUri(null, uri); 8614 } else { 8615 clip.addItem(new ClipData.Item(uri)); 8616 } 8617 } 8618 if (clip != null) { 8619 setPrimaryClip(clip); 8620 } 8621 } 8622 stopSelectionActionMode(); 8623 return true; 8624 8625 case ID_SELECTION_MODE: 8626 if (mSelectionActionMode != null) { 8627 // Selection mode is already started, simply change selected part. 8628 selectCurrentWord(); 8629 } else { 8630 startSelectionActionMode(); 8631 } 8632 return true; 8633 8634 case ID_SELECT_ALL: 8635 // This does not enter text selection mode. Text is highlighted, so that it can be 8636 // bulk edited, like selectAllOnFocus does. Returns true even if text is empty. 8637 selectAll(); 8638 return true; 8639 8640 case ID_PASTE: 8641 paste(min, max); 8642 return true; 8643 8644 case ID_CUT: 8645 setPrimaryClip(ClipData.newPlainText(null, mTransformed.subSequence(min, max))); 8646 ((Editable) mText).delete(min, max); 8647 stopSelectionActionMode(); 8648 return true; 8649 8650 case ID_COPY: 8651 setPrimaryClip(ClipData.newPlainText(null, mTransformed.subSequence(min, max))); 8652 stopSelectionActionMode(); 8653 return true; 8654 } 8655 return false; 8656 } 8657 8658 /** 8659 * Prepare text so that there are not zero or two spaces at beginning and end of region defined 8660 * by [min, max] when replacing this region by paste. 8661 * Note that if there were two spaces (or more) at that position before, they are kept. We just 8662 * make sure we do not add an extra one from the paste content. 8663 */ 8664 private long prepareSpacesAroundPaste(int min, int max, CharSequence paste) { 8665 if (paste.length() > 0) { 8666 if (min > 0) { 8667 final char charBefore = mTransformed.charAt(min - 1); 8668 final char charAfter = paste.charAt(0); 8669 8670 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8671 // Two spaces at beginning of paste: remove one 8672 final int originalLength = mText.length(); 8673 ((Editable) mText).delete(min - 1, min); 8674 // Due to filters, there is no guarantee that exactly one character was 8675 // removed: count instead. 8676 final int delta = mText.length() - originalLength; 8677 min += delta; 8678 max += delta; 8679 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8680 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8681 // No space at beginning of paste: add one 8682 final int originalLength = mText.length(); 8683 ((Editable) mText).replace(min, min, " "); 8684 // Taking possible filters into account as above. 8685 final int delta = mText.length() - originalLength; 8686 min += delta; 8687 max += delta; 8688 } 8689 } 8690 8691 if (max < mText.length()) { 8692 final char charBefore = paste.charAt(paste.length() - 1); 8693 final char charAfter = mTransformed.charAt(max); 8694 8695 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8696 // Two spaces at end of paste: remove one 8697 ((Editable) mText).delete(max, max + 1); 8698 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8699 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8700 // No space at end of paste: add one 8701 ((Editable) mText).replace(max, max, " "); 8702 } 8703 } 8704 } 8705 8706 return packRangeInLong(min, max); 8707 } 8708 8709 private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { 8710 TextView shadowView = (TextView) inflate(mContext, 8711 com.android.internal.R.layout.text_drag_thumbnail, null); 8712 8713 if (shadowView == null) { 8714 throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); 8715 } 8716 8717 if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { 8718 text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); 8719 } 8720 shadowView.setText(text); 8721 shadowView.setTextColor(getTextColors()); 8722 8723 shadowView.setTextAppearance(mContext, R.styleable.Theme_textAppearanceLarge); 8724 shadowView.setGravity(Gravity.CENTER); 8725 8726 shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 8727 ViewGroup.LayoutParams.WRAP_CONTENT)); 8728 8729 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8730 shadowView.measure(size, size); 8731 8732 shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); 8733 shadowView.invalidate(); 8734 return new DragShadowBuilder(shadowView); 8735 } 8736 8737 private static class DragLocalState { 8738 public TextView sourceTextView; 8739 public int start, end; 8740 8741 public DragLocalState(TextView sourceTextView, int start, int end) { 8742 this.sourceTextView = sourceTextView; 8743 this.start = start; 8744 this.end = end; 8745 } 8746 } 8747 8748 @Override 8749 public boolean performLongClick() { 8750 if (super.performLongClick()) { 8751 mDiscardNextActionUp = true; 8752 return true; 8753 } 8754 8755 boolean handled = false; 8756 8757 // Long press in empty space moves cursor and shows the Paste affordance if available. 8758 if (!isPositionOnText(mLastDownPositionX, mLastDownPositionY) && 8759 mInsertionControllerEnabled) { 8760 final int offset = getOffsetForPosition(mLastDownPositionX, mLastDownPositionY); 8761 stopSelectionActionMode(); 8762 Selection.setSelection((Spannable) mText, offset); 8763 getInsertionController().showImmediately(); 8764 handled = true; 8765 } 8766 8767 if (!handled && mSelectionActionMode != null) { 8768 if (touchPositionIsInSelection()) { 8769 // Start a drag 8770 final int start = getSelectionStart(); 8771 final int end = getSelectionEnd(); 8772 CharSequence selectedText = mTransformed.subSequence(start, end); 8773 ClipData data = ClipData.newPlainText(null, selectedText); 8774 DragLocalState localState = new DragLocalState(this, start, end); 8775 startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); 8776 stopSelectionActionMode(); 8777 } else { 8778 selectCurrentWord(); 8779 } 8780 handled = true; 8781 } 8782 8783 // Start a new selection 8784 handled |= !handled && startSelectionActionMode(); 8785 8786 if (handled) { 8787 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 8788 mDiscardNextActionUp = true; 8789 } 8790 8791 return handled; 8792 } 8793 8794 private boolean touchPositionIsInSelection() { 8795 int selectionStart = getSelectionStart(); 8796 int selectionEnd = getSelectionEnd(); 8797 8798 if (selectionStart == selectionEnd) { 8799 return false; 8800 } 8801 8802 if (selectionStart > selectionEnd) { 8803 int tmp = selectionStart; 8804 selectionStart = selectionEnd; 8805 selectionEnd = tmp; 8806 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8807 } 8808 8809 SelectionModifierCursorController selectionController = getSelectionController(); 8810 int minOffset = selectionController.getMinTouchOffset(); 8811 int maxOffset = selectionController.getMaxTouchOffset(); 8812 8813 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 8814 } 8815 8816 private PositionListener getPositionListener() { 8817 if (mPositionListener == null) { 8818 mPositionListener = new PositionListener(); 8819 } 8820 return mPositionListener; 8821 } 8822 8823 private interface TextViewPositionListener { 8824 public void updatePosition(int parentPositionX, int parentPositionY, boolean modified); 8825 } 8826 8827 private class PositionListener implements ViewTreeObserver.OnPreDrawListener { 8828 // 3 handles, 2 ActionPopup (suggestionsPopup first hides the others) 8829 private final int MAXIMUM_NUMBER_OF_LISTENERS = 5; 8830 private TextViewPositionListener[] mPositionListeners = 8831 new TextViewPositionListener[MAXIMUM_NUMBER_OF_LISTENERS]; 8832 private boolean mCanMove[] = new boolean[MAXIMUM_NUMBER_OF_LISTENERS]; 8833 private boolean mPositionHasChanged = true; 8834 // Absolute position of the TextView with respect to its parent window 8835 private int mPositionX, mPositionY; 8836 private int mNumberOfListeners; 8837 8838 public void addSubscriber(TextViewPositionListener positionListener, boolean canMove) { 8839 if (mNumberOfListeners == 0) { 8840 updatePosition(); 8841 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 8842 vto.addOnPreDrawListener(this); 8843 } 8844 8845 int emptySlotIndex = -1; 8846 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 8847 TextViewPositionListener listener = mPositionListeners[i]; 8848 if (listener == positionListener) { 8849 return; 8850 } else if (emptySlotIndex < 0 && listener == null) { 8851 emptySlotIndex = i; 8852 } 8853 } 8854 8855 mPositionListeners[emptySlotIndex] = positionListener; 8856 mCanMove[emptySlotIndex] = canMove; 8857 mNumberOfListeners++; 8858 } 8859 8860 public void removeSubscriber(TextViewPositionListener positionListener) { 8861 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 8862 if (mPositionListeners[i] == positionListener) { 8863 mPositionListeners[i] = null; 8864 mNumberOfListeners--; 8865 break; 8866 } 8867 } 8868 8869 if (mNumberOfListeners == 0) { 8870 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 8871 vto.removeOnPreDrawListener(this); 8872 } 8873 } 8874 8875 public int getPositionX() { 8876 return mPositionX; 8877 } 8878 8879 public int getPositionY() { 8880 return mPositionY; 8881 } 8882 8883 @Override 8884 public boolean onPreDraw() { 8885 updatePosition(); 8886 8887 for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) { 8888 if (mPositionHasChanged || mCanMove[i]) { 8889 TextViewPositionListener positionListener = mPositionListeners[i]; 8890 if (positionListener != null) { 8891 positionListener.updatePosition(mPositionX, mPositionY, 8892 mPositionHasChanged); 8893 } 8894 } 8895 } 8896 8897 return true; 8898 } 8899 8900 private void updatePosition() { 8901 TextView.this.getLocationInWindow(mTempCoords); 8902 8903 mPositionHasChanged = mTempCoords[0] != mPositionX || mTempCoords[1] != mPositionY; 8904 8905 mPositionX = mTempCoords[0]; 8906 mPositionY = mTempCoords[1]; 8907 } 8908 8909 public boolean isVisible(int positionX, int positionY) { 8910 final TextView textView = TextView.this; 8911 8912 if (mTempRect == null) mTempRect = new Rect(); 8913 final Rect clip = mTempRect; 8914 clip.left = getCompoundPaddingLeft(); 8915 clip.top = getExtendedPaddingTop(); 8916 clip.right = textView.getWidth() - getCompoundPaddingRight(); 8917 clip.bottom = textView.getHeight() - getExtendedPaddingBottom(); 8918 8919 final ViewParent parent = textView.getParent(); 8920 if (parent == null || !parent.getChildVisibleRect(textView, clip, null)) { 8921 return false; 8922 } 8923 8924 int posX = mPositionX + positionX; 8925 int posY = mPositionY + positionY; 8926 8927 // Offset by 1 to take into account 0.5 and int rounding around getPrimaryHorizontal. 8928 return posX >= clip.left - 1 && posX <= clip.right + 1 && 8929 posY >= clip.top && posY <= clip.bottom; 8930 } 8931 8932 public boolean isOffsetVisible(int offset) { 8933 final int line = mLayout.getLineForOffset(offset); 8934 final int lineBottom = mLayout.getLineBottom(line); 8935 final int primaryHorizontal = (int) mLayout.getPrimaryHorizontal(offset); 8936 return isVisible(primaryHorizontal, lineBottom); 8937 } 8938 } 8939 8940 private abstract class PinnedPopupWindow implements TextViewPositionListener { 8941 protected PopupWindow mPopupWindow; 8942 protected LinearLayout mContentView; 8943 int mPositionX, mPositionY; 8944 8945 protected abstract void createPopupWindow(); 8946 protected abstract void initContentView(); 8947 protected abstract int getTextOffset(); 8948 protected abstract int getVerticalLocalPosition(int line); 8949 protected abstract int clipVertically(int positionY); 8950 8951 public PinnedPopupWindow() { 8952 createPopupWindow(); 8953 8954 mPopupWindow.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8955 mPopupWindow.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 8956 mPopupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 8957 8958 mContentView = new LinearLayout(TextView.this.getContext()); 8959 LayoutParams wrapContent = new LayoutParams( 8960 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 8961 mContentView.setLayoutParams(wrapContent); 8962 8963 initContentView(); 8964 mPopupWindow.setContentView(mContentView); 8965 } 8966 8967 public void show() { 8968 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 8969 mContentView.measure( 8970 View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels, 8971 View.MeasureSpec.AT_MOST), 8972 View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels, 8973 View.MeasureSpec.AT_MOST)); 8974 8975 TextView.this.getPositionListener().addSubscriber(this, false); 8976 8977 computeLocalPosition(); 8978 8979 final PositionListener positionListener = TextView.this.getPositionListener(); 8980 updatePosition(positionListener.getPositionX(), positionListener.getPositionY()); 8981 } 8982 8983 private void computeLocalPosition() { 8984 final int offset = getTextOffset(); 8985 8986 final int width = mContentView.getMeasuredWidth(); 8987 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - width / 2.0f); 8988 mPositionX += viewportToContentHorizontalOffset(); 8989 8990 final int line = mLayout.getLineForOffset(offset); 8991 mPositionY = getVerticalLocalPosition(line); 8992 mPositionY += viewportToContentVerticalOffset(); 8993 } 8994 8995 private void updatePosition(int parentPositionX, int parentPositionY) { 8996 int positionX = parentPositionX + mPositionX; 8997 int positionY = parentPositionY + mPositionY; 8998 8999 positionY = clipVertically(positionY); 9000 9001 // Horizontal clipping 9002 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9003 final int width = mContentView.getMeasuredWidth(); 9004 positionX = Math.min(displayMetrics.widthPixels - width, positionX); 9005 positionX = Math.max(0, positionX); 9006 9007 if (isShowing()) { 9008 mPopupWindow.update(positionX, positionY, -1, -1); 9009 } else { 9010 mPopupWindow.showAtLocation(TextView.this, Gravity.NO_GRAVITY, 9011 positionX, positionY); 9012 } 9013 } 9014 9015 public void hide() { 9016 mPopupWindow.dismiss(); 9017 TextView.this.getPositionListener().removeSubscriber(this); 9018 } 9019 9020 @Override 9021 public void updatePosition(int parentPositionX, int parentPositionY, boolean modified) { 9022 if (isShowing() && getPositionListener().isOffsetVisible(getTextOffset())) { 9023 updatePosition(parentPositionX, parentPositionY); 9024 } else { 9025 hide(); 9026 } 9027 } 9028 9029 public boolean isShowing() { 9030 return mPopupWindow.isShowing(); 9031 } 9032 } 9033 9034 private static class SuggestionRangeSpan extends UnderlineSpan { 9035 // TODO themable, would be nice to make it a child class of TextAppearanceSpan, but 9036 // there is no way to have underline and TextAppearanceSpan. 9037 } 9038 9039 private class SuggestionsPopupWindow extends PinnedPopupWindow implements OnClickListener { 9040 private static final int MAX_NUMBER_SUGGESTIONS = 5; 9041 private static final int NO_SUGGESTIONS = -1; 9042 private WordIterator mSuggestionWordIterator; 9043 private TextAppearanceSpan[] mHighlightSpans = new TextAppearanceSpan[0]; 9044 9045 @Override 9046 protected void createPopupWindow() { 9047 mPopupWindow = new PopupWindow(TextView.this.mContext, null, 9048 com.android.internal.R.attr.textSuggestionsWindowStyle); 9049 mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 9050 mPopupWindow.setOutsideTouchable(true); 9051 mPopupWindow.setClippingEnabled(false); 9052 } 9053 9054 @Override 9055 protected void initContentView() { 9056 mContentView.setOrientation(LinearLayout.VERTICAL); 9057 9058 LayoutInflater inflater = (LayoutInflater) TextView.this.mContext. 9059 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 9060 9061 if (inflater == null) { 9062 throw new IllegalArgumentException( 9063 "Unable to create inflater for TextEdit suggestions"); 9064 } 9065 9066 // Inflate the suggestion items once and for all. 9067 for (int i = 0; i < MAX_NUMBER_SUGGESTIONS; i++) { 9068 View childView = inflater.inflate(mTextEditSuggestionItemLayout, 9069 mContentView, false); 9070 9071 if (! (childView instanceof TextView)) { 9072 throw new IllegalArgumentException( 9073 "Inflated TextEdit suggestion item is not a TextView: " + childView); 9074 } 9075 9076 childView.setTag(new SuggestionInfo()); 9077 mContentView.addView(childView); 9078 childView.setOnClickListener(this); 9079 } 9080 } 9081 9082 private class SuggestionInfo { 9083 int suggestionStart, suggestionEnd; // range of suggestion item with replacement text 9084 int spanStart, spanEnd; // range in TextView where text should be inserted 9085 SuggestionSpan suggestionSpan; // the SuggestionSpan that this TextView represents 9086 int suggestionIndex; // the index of the suggestion inside suggestionSpan 9087 } 9088 9089 /** 9090 * Returns the suggestion spans that cover the current cursor position. The suggestion 9091 * spans are sorted according to the length of text that they are attached to. 9092 */ 9093 private SuggestionSpan[] getSuggestionSpans() { 9094 int pos = TextView.this.getSelectionStart(); 9095 Spannable spannable = (Spannable) TextView.this.mText; 9096 SuggestionSpan[] suggestionSpans = spannable.getSpans(pos, pos, SuggestionSpan.class); 9097 9098 // Cache the span length for performance reason. 9099 final HashMap<SuggestionSpan, Integer> spansLengths = 9100 new HashMap<SuggestionSpan, Integer>(); 9101 9102 for (SuggestionSpan suggestionSpan : suggestionSpans) { 9103 int start = spannable.getSpanStart(suggestionSpan); 9104 int end = spannable.getSpanEnd(suggestionSpan); 9105 spansLengths.put(suggestionSpan, Integer.valueOf(end - start)); 9106 } 9107 9108 // The suggestions are sorted according to the lenght of the text that they cover 9109 // (shorter first) 9110 Arrays.sort(suggestionSpans, new Comparator<SuggestionSpan>() { 9111 public int compare(SuggestionSpan span1, SuggestionSpan span2) { 9112 return spansLengths.get(span1).intValue() - spansLengths.get(span2).intValue(); 9113 } 9114 }); 9115 9116 return suggestionSpans; 9117 } 9118 9119 @Override 9120 public void show() { 9121 if (!(mText instanceof Editable)) return; 9122 updateSuggestions(); 9123 9124 super.show(); 9125 } 9126 9127 @Override 9128 protected int getTextOffset() { 9129 return getSelectionStart(); 9130 } 9131 9132 @Override 9133 protected int getVerticalLocalPosition(int line) { 9134 return mLayout.getLineBottom(line); 9135 } 9136 9137 @Override 9138 protected int clipVertically(int positionY) { 9139 final int height = mContentView.getMeasuredHeight(); 9140 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 9141 return Math.min(positionY, displayMetrics.heightPixels - height); 9142 } 9143 9144 @Override 9145 public void hide() { 9146 super.hide(); 9147 if ((mText instanceof Editable) && mSuggestionRangeSpan != null) { 9148 ((Editable) mText).removeSpan(mSuggestionRangeSpan); 9149 } 9150 } 9151 9152 private void updateSuggestions() { 9153 Spannable spannable = (Spannable)TextView.this.mText; 9154 SuggestionSpan[] suggestionSpans = getSuggestionSpans(); 9155 9156 final int nbSpans = suggestionSpans.length; 9157 9158 int totalNbSuggestions = 0; 9159 int spanUnionStart = mText.length(); 9160 int spanUnionEnd = 0; 9161 9162 for (int spanIndex = 0; spanIndex < nbSpans; spanIndex++) { 9163 SuggestionSpan suggestionSpan = suggestionSpans[spanIndex]; 9164 final int spanStart = spannable.getSpanStart(suggestionSpan); 9165 final int spanEnd = spannable.getSpanEnd(suggestionSpan); 9166 spanUnionStart = Math.min(spanStart, spanUnionStart); 9167 spanUnionEnd = Math.max(spanEnd, spanUnionEnd); 9168 9169 String[] suggestions = suggestionSpan.getSuggestions(); 9170 int nbSuggestions = suggestions.length; 9171 for (int suggestionIndex = 0; suggestionIndex < nbSuggestions; suggestionIndex++) { 9172 TextView textView = (TextView) mContentView.getChildAt( 9173 totalNbSuggestions); 9174 textView.setText(suggestions[suggestionIndex]); 9175 SuggestionInfo suggestionInfo = (SuggestionInfo) textView.getTag(); 9176 suggestionInfo.spanStart = spanStart; 9177 suggestionInfo.spanEnd = spanEnd; 9178 suggestionInfo.suggestionSpan = suggestionSpan; 9179 suggestionInfo.suggestionIndex = suggestionIndex; 9180 9181 totalNbSuggestions++; 9182 if (totalNbSuggestions == MAX_NUMBER_SUGGESTIONS) { 9183 // Also end outer for loop 9184 spanIndex = nbSpans; 9185 break; 9186 } 9187 } 9188 } 9189 9190 if (totalNbSuggestions == 0) { 9191 // TODO Replace by final text, use a dedicated layout, add a fade out timer... 9192 TextView textView = (TextView) mContentView.getChildAt(0); 9193 textView.setText("No suggestions available"); 9194 SuggestionInfo suggestionInfo = (SuggestionInfo) textView.getTag(); 9195 suggestionInfo.spanStart = NO_SUGGESTIONS; 9196 totalNbSuggestions++; 9197 } else { 9198 if (mSuggestionRangeSpan == null) mSuggestionRangeSpan = new SuggestionRangeSpan(); 9199 ((Editable) mText).setSpan(mSuggestionRangeSpan, spanUnionStart, spanUnionEnd, 9200 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9201 9202 for (int i = 0; i < totalNbSuggestions; i++) { 9203 final TextView textView = (TextView) mContentView.getChildAt(i); 9204 highlightTextDifferences(textView, spanUnionStart, spanUnionEnd); 9205 } 9206 } 9207 9208 for (int i = 0; i < totalNbSuggestions; i++) { 9209 mContentView.getChildAt(i).setVisibility(VISIBLE); 9210 } 9211 for (int i = totalNbSuggestions; i < MAX_NUMBER_SUGGESTIONS; i++) { 9212 mContentView.getChildAt(i).setVisibility(GONE); 9213 } 9214 } 9215 9216 private long[] getWordLimits(CharSequence text) { 9217 // TODO locale for mSuggestionWordIterator 9218 if (mSuggestionWordIterator == null) mSuggestionWordIterator = new WordIterator(); 9219 mSuggestionWordIterator.setCharSequence(text); 9220 9221 // First pass will simply count the number of words to be able to create an array 9222 // Not too expensive since previous break positions are cached by the BreakIterator 9223 int nbWords = 0; 9224 int position = mSuggestionWordIterator.following(0); 9225 while (position != BreakIterator.DONE) { 9226 nbWords++; 9227 position = mSuggestionWordIterator.following(position); 9228 } 9229 9230 int index = 0; 9231 long[] result = new long[nbWords]; 9232 9233 position = mSuggestionWordIterator.following(0); 9234 while (position != BreakIterator.DONE) { 9235 int wordStart = mSuggestionWordIterator.getBeginning(position); 9236 result[index++] = packRangeInLong(wordStart, position); 9237 position = mSuggestionWordIterator.following(position); 9238 } 9239 9240 return result; 9241 } 9242 9243 private TextAppearanceSpan highlightSpan(int index) { 9244 final int length = mHighlightSpans.length; 9245 if (index < length) { 9246 return mHighlightSpans[index]; 9247 } 9248 9249 // Assumes indexes are requested in sequence: simply append one more item 9250 TextAppearanceSpan[] newArray = new TextAppearanceSpan[length + 1]; 9251 System.arraycopy(mHighlightSpans, 0, newArray, 0, length); 9252 TextAppearanceSpan highlightSpan = new TextAppearanceSpan(mContext, 9253 android.R.style.TextAppearance_SuggestionHighlight); 9254 newArray[length] = highlightSpan; 9255 mHighlightSpans = newArray; 9256 return highlightSpan; 9257 } 9258 9259 private void highlightTextDifferences(TextView textView, int unionStart, int unionEnd) { 9260 SuggestionInfo suggestionInfo = (SuggestionInfo) textView.getTag(); 9261 final int spanStart = suggestionInfo.spanStart; 9262 final int spanEnd = suggestionInfo.spanEnd; 9263 9264 // Remove all text formating by converting to Strings 9265 final String text = textView.getText().toString(); 9266 final String sourceText = mText.subSequence(spanStart, spanEnd).toString(); 9267 9268 long[] sourceWordLimits = getWordLimits(sourceText); 9269 long[] wordLimits = getWordLimits(text); 9270 9271 SpannableStringBuilder ssb = new SpannableStringBuilder(); 9272 // span [spanStart, spanEnd] is included in union [spanUnionStart, int spanUnionEnd] 9273 // The final result is made of 3 parts: the text before, between and after the span 9274 // This is the text before, provided for context 9275 ssb.append(mText.subSequence(unionStart, spanStart).toString()); 9276 9277 // shift is used to offset spans positions wrt span's beginning 9278 final int shift = spanStart - unionStart; 9279 suggestionInfo.suggestionStart = shift; 9280 suggestionInfo.suggestionEnd = shift + text.length(); 9281 9282 // This is the actual suggestion text, which will be highlighted by the following code 9283 ssb.append(text); 9284 9285 String[] words = new String[wordLimits.length]; 9286 for (int i = 0; i < wordLimits.length; i++) { 9287 int wordStart = extractRangeStartFromLong(wordLimits[i]); 9288 int wordEnd = extractRangeEndFromLong(wordLimits[i]); 9289 words[i] = text.substring(wordStart, wordEnd); 9290 } 9291 9292 // Highlighted word algorithm is based on word matching between source and text 9293 // Matching words are found from left to right. TODO: change for RTL languages 9294 // Characters between matching words are highlighted 9295 int previousCommonWordIndex = -1; 9296 int nbHighlightSpans = 0; 9297 for (int i = 0; i < sourceWordLimits.length; i++) { 9298 int wordStart = extractRangeStartFromLong(sourceWordLimits[i]); 9299 int wordEnd = extractRangeEndFromLong(sourceWordLimits[i]); 9300 String sourceWord = sourceText.substring(wordStart, wordEnd); 9301 9302 for (int j = previousCommonWordIndex + 1; j < words.length; j++) { 9303 if (sourceWord.equals(words[j])) { 9304 if (j != previousCommonWordIndex + 1) { 9305 int firstDifferentPosition = previousCommonWordIndex < 0 ? 0 : 9306 extractRangeEndFromLong(wordLimits[previousCommonWordIndex]); 9307 int lastDifferentPosition = extractRangeStartFromLong(wordLimits[j]); 9308 ssb.setSpan(highlightSpan(nbHighlightSpans++), 9309 shift + firstDifferentPosition, shift + lastDifferentPosition, 9310 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9311 } else { 9312 // Compare characters between words 9313 int previousSourceWordEnd = i == 0 ? 0 : 9314 extractRangeEndFromLong(sourceWordLimits[i - 1]); 9315 int sourceWordStart = extractRangeStartFromLong(sourceWordLimits[i]); 9316 String sourceSpaces = sourceText.substring(previousSourceWordEnd, 9317 sourceWordStart); 9318 9319 int previousWordEnd = j == 0 ? 0 : 9320 extractRangeEndFromLong(wordLimits[j - 1]); 9321 int currentWordStart = extractRangeStartFromLong(wordLimits[j]); 9322 String textSpaces = text.substring(previousWordEnd, currentWordStart); 9323 9324 if (!sourceSpaces.equals(textSpaces)) { 9325 ssb.setSpan(highlightSpan(nbHighlightSpans++), 9326 shift + previousWordEnd, shift + currentWordStart, 9327 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9328 } 9329 } 9330 previousCommonWordIndex = j; 9331 break; 9332 } 9333 } 9334 } 9335 9336 // Finally, compare ends of Strings 9337 if (previousCommonWordIndex < words.length - 1) { 9338 int firstDifferentPosition = previousCommonWordIndex < 0 ? 0 : 9339 extractRangeEndFromLong(wordLimits[previousCommonWordIndex]); 9340 int lastDifferentPosition = textView.length(); 9341 ssb.setSpan(highlightSpan(nbHighlightSpans++), 9342 shift + firstDifferentPosition, shift + lastDifferentPosition, 9343 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9344 } else { 9345 int lastSourceWordEnd = sourceWordLimits.length == 0 ? 0 : 9346 extractRangeEndFromLong(sourceWordLimits[sourceWordLimits.length - 1]); 9347 String sourceSpaces = sourceText.substring(lastSourceWordEnd, sourceText.length()); 9348 9349 int lastCommonTextWordEnd = previousCommonWordIndex < 0 ? 0 : 9350 extractRangeEndFromLong(wordLimits[previousCommonWordIndex]); 9351 String textSpaces = text.substring(lastCommonTextWordEnd, textView.length()); 9352 9353 if (!sourceSpaces.equals(textSpaces) && textSpaces.length() > 0) { 9354 ssb.setSpan(highlightSpan(nbHighlightSpans++), 9355 shift + lastCommonTextWordEnd, shift + textView.length(), 9356 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 9357 } 9358 } 9359 9360 // Final part, text after the current suggestion range. 9361 ssb.append(mText.subSequence(spanEnd, unionEnd).toString()); 9362 textView.setText(ssb); 9363 } 9364 9365 @Override 9366 public void onClick(View view) { 9367 if (view instanceof TextView) { 9368 TextView textView = (TextView) view; 9369 SuggestionInfo suggestionInfo = (SuggestionInfo) textView.getTag(); 9370 final int spanStart = suggestionInfo.spanStart; 9371 final int spanEnd = suggestionInfo.spanEnd; 9372 if (spanStart != NO_SUGGESTIONS) { 9373 // SuggestionSpans are removed by replace: save them before 9374 Editable editable = ((Editable) mText); 9375 SuggestionSpan[] suggestionSpans = editable.getSpans(spanStart, spanEnd, 9376 SuggestionSpan.class); 9377 final int length = suggestionSpans.length; 9378 int[] suggestionSpansStarts = new int[length]; 9379 int[] suggestionSpansEnds = new int[length]; 9380 int[] suggestionSpansFlags = new int[length]; 9381 for (int i = 0; i < length; i++) { 9382 final SuggestionSpan suggestionSpan = suggestionSpans[i]; 9383 suggestionSpansStarts[i] = editable.getSpanStart(suggestionSpan); 9384 suggestionSpansEnds[i] = editable.getSpanEnd(suggestionSpan); 9385 suggestionSpansFlags[i] = editable.getSpanFlags(suggestionSpan); 9386 } 9387 9388 final int suggestionStart = suggestionInfo.suggestionStart; 9389 final int suggestionEnd = suggestionInfo.suggestionEnd; 9390 final String suggestion = textView.getText().subSequence( 9391 suggestionStart, suggestionEnd).toString(); 9392 final String originalText = mText.subSequence(spanStart, spanEnd).toString(); 9393 ((Editable) mText).replace(spanStart, spanEnd, suggestion); 9394 9395 // Notify source IME of the suggestion pick. Do this before swaping texts. 9396 if (!TextUtils.isEmpty( 9397 suggestionInfo.suggestionSpan.getNotificationTargetClassName())) { 9398 InputMethodManager imm = InputMethodManager.peekInstance(); 9399 imm.notifySuggestionPicked(suggestionInfo.suggestionSpan, originalText, 9400 suggestionInfo.suggestionIndex); 9401 } 9402 9403 // Swap text content between actual text and Suggestion span 9404 String[] suggestions = suggestionInfo.suggestionSpan.getSuggestions(); 9405 suggestions[suggestionInfo.suggestionIndex] = originalText; 9406 9407 // Restore previous SuggestionSpans 9408 final int lengthDifference = suggestion.length() - (spanEnd - spanStart); 9409 for (int i = 0; i < length; i++) { 9410 // Only spans that include the modified region make sense after replacement 9411 // Spans partially included in the replaced region are removed, there is no 9412 // way to assign them a valid range after replacement 9413 if (suggestionSpansStarts[i] <= spanStart && 9414 suggestionSpansEnds[i] >= spanEnd) { 9415 editable.setSpan(suggestionSpans[i], suggestionSpansStarts[i], 9416 suggestionSpansEnds[i] + lengthDifference, 9417 suggestionSpansFlags[i]); 9418 } 9419 } 9420 } 9421 } 9422 hide(); 9423 } 9424 } 9425 9426 void showSuggestions() { 9427 if (!isSuggestionsEnabled() || !isTextEditable()) return; 9428 9429 if (mSuggestionsPopupWindow == null) { 9430 mSuggestionsPopupWindow = new SuggestionsPopupWindow(); 9431 } 9432 hideControllers(); 9433 mSuggestionsPopupWindow.show(); 9434 } 9435 9436 void hideSuggestions() { 9437 if (mSuggestionsPopupWindow != null) { 9438 mSuggestionsPopupWindow.hide(); 9439 } 9440 } 9441 9442 boolean areSuggestionsShown() { 9443 return mSuggestionsPopupWindow != null && mSuggestionsPopupWindow.isShowing(); 9444 } 9445 9446 /** 9447 * Some parts of the text can have alternate suggestion text attached. This is typically done by 9448 * the IME by adding {@link SuggestionSpan}s to the text. 9449 * 9450 * When suggestions are enabled (default), this list of suggestions will be displayed when the 9451 * user double taps on these parts of the text. No suggestions are displayed when this value is 9452 * false. Use {@link #setSuggestionsEnabled(boolean)} to change this value. 9453 * 9454 * Note that suggestions are only enabled for a subset of input types. In addition to setting 9455 * this flag to <code>true</code> using {@link #setSuggestionsEnabled(boolean)} or the 9456 * <code>android:suggestionsEnabled</code> xml attribute, this method will return 9457 * <code>true</code> only if the class of your input type is {@link InputType#TYPE_CLASS_TEXT}. 9458 * In addition, the type variation must also be one of 9459 * {@link InputType#TYPE_TEXT_VARIATION_NORMAL}, 9460 * {@link InputType#TYPE_TEXT_VARIATION_EMAIL_SUBJECT}, 9461 * {@link InputType#TYPE_TEXT_VARIATION_LONG_MESSAGE}, 9462 * {@link InputType#TYPE_TEXT_VARIATION_SHORT_MESSAGE} or 9463 * {@link InputType#TYPE_TEXT_VARIATION_WEB_EDIT_TEXT}. 9464 * 9465 * @return true if the suggestions popup window is enabled. 9466 * 9467 * @attr ref android.R.styleable#TextView_suggestionsEnabled 9468 */ 9469 public boolean isSuggestionsEnabled() { 9470 if (!mSuggestionsEnabled) return false; 9471 if ((mInputType & InputType.TYPE_MASK_CLASS) != InputType.TYPE_CLASS_TEXT) return false; 9472 final int variation = 9473 mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 9474 if (variation == EditorInfo.TYPE_TEXT_VARIATION_NORMAL || 9475 variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT || 9476 variation == EditorInfo.TYPE_TEXT_VARIATION_LONG_MESSAGE || 9477 variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE || 9478 variation == EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT) return true; 9479 9480 return false; 9481 } 9482 9483 /** 9484 * Enables or disables the suggestion popup. See {@link #isSuggestionsEnabled()}. 9485 * 9486 * @param enabled Whether or not suggestions are enabled. 9487 * 9488 * @attr ref android.R.styleable#TextView_suggestionsEnabled 9489 */ 9490 public void setSuggestionsEnabled(boolean enabled) { 9491 mSuggestionsEnabled = enabled; 9492 } 9493 9494 /** 9495 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 9496 * selection is initiated in this View. 9497 * 9498 * The standard implementation populates the menu with a subset of Select All, Cut, Copy and 9499 * Paste actions, depending on what this View supports. 9500 * 9501 * A custom implementation can add new entries in the default menu in its 9502 * {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The 9503 * default actions can also be removed from the menu using {@link Menu#removeItem(int)} and 9504 * passing {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy} 9505 * or {@link android.R.id#paste} ids as parameters. 9506 * 9507 * Returning false from 9508 * {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will prevent 9509 * the action mode from being started. 9510 * 9511 * Action click events should be handled by the custom implementation of 9512 * {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}. 9513 * 9514 * Note that text selection mode is not started when a TextView receives focus and the 9515 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 9516 * that case, to allow for quick replacement. 9517 */ 9518 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 9519 mCustomSelectionActionModeCallback = actionModeCallback; 9520 } 9521 9522 /** 9523 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 9524 * 9525 * @return The current custom selection callback. 9526 */ 9527 public ActionMode.Callback getCustomSelectionActionModeCallback() { 9528 return mCustomSelectionActionModeCallback; 9529 } 9530 9531 /** 9532 * 9533 * @return true if the selection mode was actually started. 9534 */ 9535 private boolean startSelectionActionMode() { 9536 if (mSelectionActionMode != null) { 9537 // Selection action mode is already started 9538 return false; 9539 } 9540 9541 if (!canSelectText() || !requestFocus()) { 9542 Log.w(LOG_TAG, "TextView does not support text selection. Action mode cancelled."); 9543 return false; 9544 } 9545 9546 if (!hasSelection()) { 9547 // There may already be a selection on device rotation 9548 boolean currentWordSelected = selectCurrentWord(); 9549 if (!currentWordSelected) { 9550 // No word found under cursor or text selection not permitted. 9551 return false; 9552 } 9553 } 9554 9555 ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); 9556 mSelectionActionMode = startActionMode(actionModeCallback); 9557 final boolean selectionStarted = mSelectionActionMode != null; 9558 9559 if (selectionStarted && !mTextIsSelectable) { 9560 // Show the IME to be able to replace text, except when selecting non editable text. 9561 final InputMethodManager imm = InputMethodManager.peekInstance(); 9562 if (imm != null) imm.showSoftInput(this, 0, null); 9563 } 9564 9565 return selectionStarted; 9566 } 9567 9568 private void stopSelectionActionMode() { 9569 if (mSelectionActionMode != null) { 9570 // This will hide the mSelectionModifierCursorController 9571 mSelectionActionMode.finish(); 9572 } 9573 } 9574 9575 /** 9576 * Paste clipboard content between min and max positions. 9577 */ 9578 private void paste(int min, int max) { 9579 ClipboardManager clipboard = 9580 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 9581 ClipData clip = clipboard.getPrimaryClip(); 9582 if (clip != null) { 9583 boolean didFirst = false; 9584 for (int i=0; i<clip.getItemCount(); i++) { 9585 CharSequence paste = clip.getItemAt(i).coerceToText(getContext()); 9586 if (paste != null) { 9587 if (!didFirst) { 9588 long minMax = prepareSpacesAroundPaste(min, max, paste); 9589 min = extractRangeStartFromLong(minMax); 9590 max = extractRangeEndFromLong(minMax); 9591 Selection.setSelection((Spannable) mText, max); 9592 ((Editable) mText).replace(min, max, paste); 9593 didFirst = true; 9594 } else { 9595 ((Editable) mText).insert(getSelectionEnd(), "\n"); 9596 ((Editable) mText).insert(getSelectionEnd(), paste); 9597 } 9598 } 9599 } 9600 stopSelectionActionMode(); 9601 sLastCutOrCopyTime = 0; 9602 } 9603 } 9604 9605 private void setPrimaryClip(ClipData clip) { 9606 ClipboardManager clipboard = (ClipboardManager) getContext(). 9607 getSystemService(Context.CLIPBOARD_SERVICE); 9608 clipboard.setPrimaryClip(clip); 9609 sLastCutOrCopyTime = SystemClock.uptimeMillis(); 9610 } 9611 9612 /** 9613 * An ActionMode Callback class that is used to provide actions while in text selection mode. 9614 * 9615 * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending 9616 * on which of these this TextView supports. 9617 */ 9618 private class SelectionActionModeCallback implements ActionMode.Callback { 9619 9620 @Override 9621 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 9622 TypedArray styledAttributes = mContext.obtainStyledAttributes(R.styleable.Theme); 9623 9624 boolean allowText = getContext().getResources().getBoolean( 9625 com.android.internal.R.bool.config_allowActionMenuItemTextWithIcon); 9626 9627 mode.setTitle(allowText ? 9628 mContext.getString(com.android.internal.R.string.textSelectionCABTitle) : null); 9629 mode.setSubtitle(null); 9630 9631 int selectAllIconId = 0; // No icon by default 9632 if (!allowText) { 9633 // Provide an icon, text will not be displayed on smaller screens. 9634 selectAllIconId = styledAttributes.getResourceId( 9635 R.styleable.Theme_actionModeSelectAllDrawable, 0); 9636 } 9637 9638 menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 9639 setIcon(selectAllIconId). 9640 setAlphabeticShortcut('a'). 9641 setShowAsAction( 9642 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 9643 9644 if (canCut()) { 9645 menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut). 9646 setIcon(styledAttributes.getResourceId( 9647 R.styleable.Theme_actionModeCutDrawable, 0)). 9648 setAlphabeticShortcut('x'). 9649 setShowAsAction( 9650 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 9651 } 9652 9653 if (canCopy()) { 9654 menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy). 9655 setIcon(styledAttributes.getResourceId( 9656 R.styleable.Theme_actionModeCopyDrawable, 0)). 9657 setAlphabeticShortcut('c'). 9658 setShowAsAction( 9659 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 9660 } 9661 9662 if (canPaste()) { 9663 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 9664 setIcon(styledAttributes.getResourceId( 9665 R.styleable.Theme_actionModePasteDrawable, 0)). 9666 setAlphabeticShortcut('v'). 9667 setShowAsAction( 9668 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 9669 } 9670 9671 styledAttributes.recycle(); 9672 9673 if (mCustomSelectionActionModeCallback != null) { 9674 if (!mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) { 9675 // The custom mode can choose to cancel the action mode 9676 return false; 9677 } 9678 } 9679 9680 if (menu.hasVisibleItems() || mode.getCustomView() != null) { 9681 getSelectionController().show(); 9682 return true; 9683 } else { 9684 return false; 9685 } 9686 } 9687 9688 @Override 9689 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 9690 if (mCustomSelectionActionModeCallback != null) { 9691 return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); 9692 } 9693 return true; 9694 } 9695 9696 @Override 9697 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 9698 if (mCustomSelectionActionModeCallback != null && 9699 mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { 9700 return true; 9701 } 9702 return onTextContextMenuItem(item.getItemId()); 9703 } 9704 9705 @Override 9706 public void onDestroyActionMode(ActionMode mode) { 9707 if (mCustomSelectionActionModeCallback != null) { 9708 mCustomSelectionActionModeCallback.onDestroyActionMode(mode); 9709 } 9710 Selection.setSelection((Spannable) mText, getSelectionEnd()); 9711 9712 if (mSelectionModifierCursorController != null) { 9713 mSelectionModifierCursorController.hide(); 9714 } 9715 9716 mSelectionActionMode = null; 9717 } 9718 } 9719 9720 private class ActionPopupWindow extends PinnedPopupWindow implements OnClickListener { 9721 private static final int POPUP_TEXT_LAYOUT = 9722 com.android.internal.R.layout.text_edit_action_popup_text; 9723 private TextView mPasteTextView; 9724 private TextView mReplaceTextView; 9725 9726 @Override 9727 protected void createPopupWindow() { 9728 mPopupWindow = new PopupWindow(TextView.this.mContext, null, 9729 com.android.internal.R.attr.textSelectHandleWindowStyle); 9730 mPopupWindow.setClippingEnabled(true); 9731 } 9732 9733 @Override 9734 protected void initContentView() { 9735 mContentView.setOrientation(LinearLayout.HORIZONTAL); 9736 mContentView.setBackgroundResource( 9737 com.android.internal.R.drawable.text_edit_side_paste_window); 9738 9739 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 9740 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 9741 9742 LayoutParams wrapContent = new LayoutParams( 9743 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); 9744 9745 mPasteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 9746 mPasteTextView.setLayoutParams(wrapContent); 9747 mContentView.addView(mPasteTextView); 9748 mPasteTextView.setText(com.android.internal.R.string.paste); 9749 mPasteTextView.setOnClickListener(this); 9750 9751 mReplaceTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null); 9752 mReplaceTextView.setLayoutParams(wrapContent); 9753 mContentView.addView(mReplaceTextView); 9754 mReplaceTextView.setText(com.android.internal.R.string.replace); 9755 mReplaceTextView.setOnClickListener(this); 9756 } 9757 9758 @Override 9759 public void show() { 9760 boolean canPaste = canPaste(); 9761 boolean suggestionsEnabled = isSuggestionsEnabled(); 9762 mPasteTextView.setVisibility(canPaste ? View.VISIBLE : View.GONE); 9763 mReplaceTextView.setVisibility(suggestionsEnabled ? View.VISIBLE : View.GONE); 9764 9765 if (!canPaste && !suggestionsEnabled) return; 9766 9767 super.show(); 9768 } 9769 9770 @Override 9771 public void onClick(View view) { 9772 if (view == mPasteTextView && canPaste()) { 9773 onTextContextMenuItem(ID_PASTE); 9774 hide(); 9775 } else if (view == mReplaceTextView) { 9776 showSuggestions(); 9777 } 9778 } 9779 9780 @Override 9781 protected int getTextOffset() { 9782 return (getSelectionStart() + getSelectionEnd()) / 2; 9783 } 9784 9785 @Override 9786 protected int getVerticalLocalPosition(int line) { 9787 return mLayout.getLineTop(line) - mContentView.getMeasuredHeight(); 9788 } 9789 9790 @Override 9791 protected int clipVertically(int positionY) { 9792 if (positionY < 0) { 9793 final int offset = getTextOffset(); 9794 final int line = mLayout.getLineForOffset(offset); 9795 positionY += mLayout.getLineBottom(line) - mLayout.getLineTop(line); 9796 positionY += mContentView.getMeasuredHeight(); 9797 9798 // Assumes insertion and selection handles share the same height 9799 final Drawable handle = mContext.getResources().getDrawable(mTextSelectHandleRes); 9800 positionY += handle.getIntrinsicHeight(); 9801 } 9802 9803 return positionY; 9804 } 9805 } 9806 9807 private abstract class HandleView extends View implements TextViewPositionListener { 9808 protected Drawable mDrawable; 9809 private final PopupWindow mContainer; 9810 // Position with respect to the parent TextView 9811 private int mPositionX, mPositionY; 9812 private boolean mIsDragging; 9813 // Offset from touch position to mPosition 9814 private float mTouchToWindowOffsetX, mTouchToWindowOffsetY; 9815 protected int mHotspotX; 9816 // Offsets the hotspot point up, so that cursor is not hidden by the finger when moving up 9817 private float mTouchOffsetY; 9818 // Where the touch position should be on the handle to ensure a maximum cursor visibility 9819 private float mIdealVerticalOffset; 9820 // Parent's (TextView) previous position in window 9821 private int mLastParentX, mLastParentY; 9822 // Transient action popup window for Paste and Replace actions 9823 protected ActionPopupWindow mActionPopupWindow; 9824 // Previous text character offset 9825 private int mPreviousOffset = -1; 9826 // Previous text character offset 9827 private boolean mPositionHasChanged = true; 9828 // Used to delay the appearance of the action popup window 9829 private Runnable mActionPopupShower; 9830 9831 public HandleView() { 9832 super(TextView.this.mContext); 9833 mContainer = new PopupWindow(TextView.this.mContext, null, 9834 com.android.internal.R.attr.textSelectHandleWindowStyle); 9835 mContainer.setSplitTouchEnabled(true); 9836 mContainer.setClippingEnabled(false); 9837 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 9838 mContainer.setContentView(this); 9839 9840 initDrawable(); 9841 9842 final int handleHeight = mDrawable.getIntrinsicHeight(); 9843 mTouchOffsetY = -0.3f * handleHeight; 9844 mIdealVerticalOffset = 0.7f * handleHeight; 9845 } 9846 9847 protected abstract void initDrawable(); 9848 9849 // Touch-up filter: number of previous positions remembered 9850 private static final int HISTORY_SIZE = 5; 9851 private static final int TOUCH_UP_FILTER_DELAY_AFTER = 150; 9852 private static final int TOUCH_UP_FILTER_DELAY_BEFORE = 350; 9853 private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; 9854 private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; 9855 private int mPreviousOffsetIndex = 0; 9856 private int mNumberPreviousOffsets = 0; 9857 9858 private void startTouchUpFilter(int offset) { 9859 mNumberPreviousOffsets = 0; 9860 addPositionToTouchUpFilter(offset); 9861 } 9862 9863 private void addPositionToTouchUpFilter(int offset) { 9864 mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; 9865 mPreviousOffsets[mPreviousOffsetIndex] = offset; 9866 mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); 9867 mNumberPreviousOffsets++; 9868 } 9869 9870 private void filterOnTouchUp() { 9871 final long now = SystemClock.uptimeMillis(); 9872 int i = 0; 9873 int index = mPreviousOffsetIndex; 9874 final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); 9875 while (i < iMax && (now - mPreviousOffsetsTimes[index]) < TOUCH_UP_FILTER_DELAY_AFTER) { 9876 i++; 9877 index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; 9878 } 9879 9880 if (i > 0 && i < iMax && 9881 (now - mPreviousOffsetsTimes[index]) > TOUCH_UP_FILTER_DELAY_BEFORE) { 9882 positionAtCursorOffset(mPreviousOffsets[index]); 9883 } 9884 } 9885 9886 public boolean offsetHasBeenChanged() { 9887 return mNumberPreviousOffsets > 1; 9888 } 9889 9890 @Override 9891 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 9892 setMeasuredDimension(mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight()); 9893 } 9894 9895 public void show() { 9896 if (isShowing()) return; 9897 9898 getPositionListener().addSubscriber(this, true); 9899 9900 // Make sure the offset is always considered new, even when focusing at same position 9901 mPreviousOffset = -1; 9902 positionAtCursorOffset(getCurrentCursorOffset()); 9903 9904 hideActionPopupWindow(); 9905 } 9906 9907 protected void dismiss() { 9908 mIsDragging = false; 9909 mContainer.dismiss(); 9910 onDetached(); 9911 } 9912 9913 public void hide() { 9914 dismiss(); 9915 9916 TextView.this.getPositionListener().removeSubscriber(this); 9917 } 9918 9919 void showActionPopupWindow(int delay) { 9920 if (mActionPopupWindow == null) { 9921 mActionPopupWindow = new ActionPopupWindow(); 9922 } 9923 if (mActionPopupShower == null) { 9924 mActionPopupShower = new Runnable() { 9925 public void run() { 9926 mActionPopupWindow.show(); 9927 } 9928 }; 9929 } else { 9930 TextView.this.removeCallbacks(mActionPopupShower); 9931 } 9932 TextView.this.postDelayed(mActionPopupShower, delay); 9933 } 9934 9935 protected void hideActionPopupWindow() { 9936 if (mActionPopupShower != null) { 9937 TextView.this.removeCallbacks(mActionPopupShower); 9938 } 9939 if (mActionPopupWindow != null) { 9940 mActionPopupWindow.hide(); 9941 } 9942 } 9943 9944 public boolean isShowing() { 9945 return mContainer.isShowing(); 9946 } 9947 9948 private boolean isVisible() { 9949 // Always show a dragging handle. 9950 if (mIsDragging) { 9951 return true; 9952 } 9953 9954 if (isInBatchEditMode()) { 9955 return false; 9956 } 9957 9958 return getPositionListener().isVisible(mPositionX + mHotspotX, mPositionY); 9959 } 9960 9961 public abstract int getCurrentCursorOffset(); 9962 9963 public abstract void updateSelection(int offset); 9964 9965 public abstract void updatePosition(float x, float y); 9966 9967 protected void positionAtCursorOffset(int offset) { 9968 // A HandleView relies on the layout, which may be nulled by external methods 9969 if (mLayout == null) { 9970 // Will update controllers' state, hiding them and stopping selection mode if needed 9971 prepareCursorControllers(); 9972 return; 9973 } 9974 9975 if (offset != mPreviousOffset) { 9976 updateSelection(offset); 9977 addPositionToTouchUpFilter(offset); 9978 final int line = mLayout.getLineForOffset(offset); 9979 9980 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX); 9981 mPositionY = mLayout.getLineBottom(line); 9982 9983 // Take TextView's padding into account. 9984 mPositionX += viewportToContentHorizontalOffset(); 9985 mPositionY += viewportToContentVerticalOffset(); 9986 9987 mPreviousOffset = offset; 9988 mPositionHasChanged = true; 9989 } 9990 } 9991 9992 public void updatePosition(int parentPositionX, int parentPositionY, boolean modified) { 9993 positionAtCursorOffset(getCurrentCursorOffset()); 9994 if (modified || mPositionHasChanged) { 9995 if (mIsDragging) { 9996 // Update touchToWindow offset in case of parent scrolling while dragging 9997 if (parentPositionX != mLastParentX || parentPositionY != mLastParentY) { 9998 mTouchToWindowOffsetX += parentPositionX - mLastParentX; 9999 mTouchToWindowOffsetY += parentPositionY - mLastParentY; 10000 mLastParentX = parentPositionX; 10001 mLastParentY = parentPositionY; 10002 } 10003 10004 onHandleMoved(); 10005 } 10006 10007 if (isVisible()) { 10008 final int positionX = parentPositionX + mPositionX; 10009 final int positionY = parentPositionY + mPositionY; 10010 if (isShowing()) { 10011 mContainer.update(positionX, positionY, -1, -1); 10012 } else { 10013 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, 10014 positionX, positionY); 10015 } 10016 } else { 10017 if (isShowing()) { 10018 dismiss(); 10019 } 10020 } 10021 10022 mPositionHasChanged = false; 10023 } 10024 } 10025 10026 @Override 10027 protected void onDraw(Canvas c) { 10028 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 10029 mDrawable.draw(c); 10030 } 10031 10032 @Override 10033 public boolean onTouchEvent(MotionEvent ev) { 10034 switch (ev.getActionMasked()) { 10035 case MotionEvent.ACTION_DOWN: { 10036 startTouchUpFilter(getCurrentCursorOffset()); 10037 mTouchToWindowOffsetX = ev.getRawX() - mPositionX; 10038 mTouchToWindowOffsetY = ev.getRawY() - mPositionY; 10039 10040 final PositionListener positionListener = getPositionListener(); 10041 mLastParentX = positionListener.getPositionX(); 10042 mLastParentY = positionListener.getPositionY(); 10043 mIsDragging = true; 10044 break; 10045 } 10046 10047 case MotionEvent.ACTION_MOVE: { 10048 final float rawX = ev.getRawX(); 10049 final float rawY = ev.getRawY(); 10050 10051 // Vertical hysteresis: vertical down movement tends to snap to ideal offset 10052 final float previousVerticalOffset = mTouchToWindowOffsetY - mLastParentY; 10053 final float currentVerticalOffset = rawY - mPositionY - mLastParentY; 10054 float newVerticalOffset; 10055 if (previousVerticalOffset < mIdealVerticalOffset) { 10056 newVerticalOffset = Math.min(currentVerticalOffset, mIdealVerticalOffset); 10057 newVerticalOffset = Math.max(newVerticalOffset, previousVerticalOffset); 10058 } else { 10059 newVerticalOffset = Math.max(currentVerticalOffset, mIdealVerticalOffset); 10060 newVerticalOffset = Math.min(newVerticalOffset, previousVerticalOffset); 10061 } 10062 mTouchToWindowOffsetY = newVerticalOffset + mLastParentY; 10063 10064 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 10065 final float newPosY = rawY - mTouchToWindowOffsetY + mTouchOffsetY; 10066 10067 updatePosition(newPosX, newPosY); 10068 break; 10069 } 10070 10071 case MotionEvent.ACTION_UP: 10072 filterOnTouchUp(); 10073 mIsDragging = false; 10074 break; 10075 10076 case MotionEvent.ACTION_CANCEL: 10077 mIsDragging = false; 10078 break; 10079 } 10080 return true; 10081 } 10082 10083 public boolean isDragging() { 10084 return mIsDragging; 10085 } 10086 10087 void onHandleMoved() { 10088 hideActionPopupWindow(); 10089 } 10090 10091 public void onDetached() { 10092 hideActionPopupWindow(); 10093 } 10094 } 10095 10096 private class InsertionHandleView extends HandleView { 10097 private static final int DELAY_BEFORE_HANDLE_FADES_OUT = 4000; 10098 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds 10099 10100 // Used to detect taps on the insertion handle, which will affect the ActionPopupWindow 10101 private float mDownPositionX, mDownPositionY; 10102 private Runnable mHider; 10103 10104 @Override 10105 public void show() { 10106 super.show(); 10107 hideAfterDelay(); 10108 } 10109 10110 public void show(int delayBeforeShowActionPopup) { 10111 show(); 10112 10113 final long durationSinceCutOrCopy = SystemClock.uptimeMillis() - sLastCutOrCopyTime; 10114 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 10115 delayBeforeShowActionPopup = 0; 10116 } 10117 showActionPopupWindow(delayBeforeShowActionPopup); 10118 } 10119 10120 private void hideAfterDelay() { 10121 removeHiderCallback(); 10122 if (mHider == null) { 10123 mHider = new Runnable() { 10124 public void run() { 10125 hide(); 10126 } 10127 }; 10128 } 10129 TextView.this.postDelayed(mHider, DELAY_BEFORE_HANDLE_FADES_OUT); 10130 } 10131 10132 private void removeHiderCallback() { 10133 if (mHider != null) { 10134 TextView.this.removeCallbacks(mHider); 10135 } 10136 } 10137 10138 @Override 10139 protected void initDrawable() { 10140 if (mSelectHandleCenter == null) { 10141 mSelectHandleCenter = mContext.getResources().getDrawable( 10142 mTextSelectHandleRes); 10143 } 10144 mDrawable = mSelectHandleCenter; 10145 mHotspotX = mDrawable.getIntrinsicWidth() / 2; 10146 } 10147 10148 @Override 10149 public boolean onTouchEvent(MotionEvent ev) { 10150 final boolean result = super.onTouchEvent(ev); 10151 10152 switch (ev.getActionMasked()) { 10153 case MotionEvent.ACTION_DOWN: 10154 mDownPositionX = ev.getRawX(); 10155 mDownPositionY = ev.getRawY(); 10156 break; 10157 10158 case MotionEvent.ACTION_UP: 10159 if (!offsetHasBeenChanged()) { 10160 final float deltaX = mDownPositionX - ev.getRawX(); 10161 final float deltaY = mDownPositionY - ev.getRawY(); 10162 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 10163 if (distanceSquared < mSquaredTouchSlopDistance) { 10164 if (mActionPopupWindow != null && mActionPopupWindow.isShowing()) { 10165 // Tapping on the handle dismisses the displayed action popup 10166 mActionPopupWindow.hide(); 10167 } else { 10168 show(0); 10169 } 10170 } 10171 } 10172 hideAfterDelay(); 10173 break; 10174 10175 case MotionEvent.ACTION_CANCEL: 10176 hideAfterDelay(); 10177 break; 10178 10179 default: 10180 break; 10181 } 10182 10183 return result; 10184 } 10185 10186 @Override 10187 public int getCurrentCursorOffset() { 10188 return TextView.this.getSelectionStart(); 10189 } 10190 10191 @Override 10192 public void updateSelection(int offset) { 10193 Selection.setSelection((Spannable) mText, offset); 10194 } 10195 10196 @Override 10197 public void updatePosition(float x, float y) { 10198 positionAtCursorOffset(getOffsetForPosition(x, y)); 10199 } 10200 10201 @Override 10202 void onHandleMoved() { 10203 super.onHandleMoved(); 10204 removeHiderCallback(); 10205 } 10206 10207 @Override 10208 public void onDetached() { 10209 super.onDetached(); 10210 removeHiderCallback(); 10211 } 10212 } 10213 10214 private class SelectionStartHandleView extends HandleView { 10215 @Override 10216 protected void initDrawable() { 10217 if (mSelectHandleLeft == null) { 10218 mSelectHandleLeft = mContext.getResources().getDrawable( 10219 mTextSelectHandleLeftRes); 10220 } 10221 mDrawable = mSelectHandleLeft; 10222 mHotspotX = (mDrawable.getIntrinsicWidth() * 3) / 4; 10223 } 10224 10225 @Override 10226 public int getCurrentCursorOffset() { 10227 return TextView.this.getSelectionStart(); 10228 } 10229 10230 @Override 10231 public void updateSelection(int offset) { 10232 Selection.setSelection((Spannable) mText, offset, getSelectionEnd()); 10233 } 10234 10235 @Override 10236 public void updatePosition(float x, float y) { 10237 final int selectionStart = getSelectionStart(); 10238 final int selectionEnd = getSelectionEnd(); 10239 10240 int offset = getOffsetForPosition(x, y); 10241 10242 // No need to redraw when the offset is unchanged 10243 if (offset == selectionStart) return; 10244 // Handles can not cross and selection is at least one character 10245 if (offset >= selectionEnd) offset = selectionEnd - 1; 10246 10247 positionAtCursorOffset(offset); 10248 } 10249 10250 public ActionPopupWindow getActionPopupWindow() { 10251 return mActionPopupWindow; 10252 } 10253 } 10254 10255 private class SelectionEndHandleView extends HandleView { 10256 @Override 10257 protected void initDrawable() { 10258 if (mSelectHandleRight == null) { 10259 mSelectHandleRight = mContext.getResources().getDrawable( 10260 mTextSelectHandleRightRes); 10261 } 10262 mDrawable = mSelectHandleRight; 10263 mHotspotX = mDrawable.getIntrinsicWidth() / 4; 10264 } 10265 10266 @Override 10267 public int getCurrentCursorOffset() { 10268 return TextView.this.getSelectionEnd(); 10269 } 10270 10271 @Override 10272 public void updateSelection(int offset) { 10273 Selection.setSelection((Spannable) mText, getSelectionStart(), offset); 10274 } 10275 10276 @Override 10277 public void updatePosition(float x, float y) { 10278 final int selectionStart = getSelectionStart(); 10279 final int selectionEnd = getSelectionEnd(); 10280 10281 int offset = getOffsetForPosition(x, y); 10282 10283 // No need to redraw when the offset is unchanged 10284 if (offset == selectionEnd) return; 10285 // Handles can not cross and selection is at least one character 10286 if (offset <= selectionStart) offset = selectionStart + 1; 10287 10288 positionAtCursorOffset(offset); 10289 } 10290 10291 public void setActionPopupWindow(ActionPopupWindow actionPopupWindow) { 10292 mActionPopupWindow = actionPopupWindow; 10293 } 10294 } 10295 10296 /** 10297 * A CursorController instance can be used to control a cursor in the text. 10298 * It is not used outside of {@link TextView}. 10299 * @hide 10300 */ 10301 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 10302 /** 10303 * Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}. 10304 * See also {@link #hide()}. 10305 */ 10306 public void show(); 10307 10308 /** 10309 * Hide the cursor controller from screen. 10310 * See also {@link #show()}. 10311 */ 10312 public void hide(); 10313 10314 /** 10315 * Called when the view is detached from window. Perform house keeping task, such as 10316 * stopping Runnable thread that would otherwise keep a reference on the context, thus 10317 * preventing the activity from being recycled. 10318 */ 10319 public void onDetached(); 10320 } 10321 10322 private class InsertionPointCursorController implements CursorController { 10323 private static final int DELAY_BEFORE_PASTE_ACTION = 1600; 10324 10325 private InsertionHandleView mHandle; 10326 10327 public void show() { 10328 getHandle().show(DELAY_BEFORE_PASTE_ACTION); 10329 } 10330 10331 public void showImmediately() { 10332 getHandle().show(0); 10333 } 10334 10335 public void hide() { 10336 if (mHandle != null) { 10337 mHandle.hide(); 10338 } 10339 } 10340 10341 public void onTouchModeChanged(boolean isInTouchMode) { 10342 if (!isInTouchMode) { 10343 hide(); 10344 } 10345 } 10346 10347 private InsertionHandleView getHandle() { 10348 if (mHandle == null) { 10349 mHandle = new InsertionHandleView(); 10350 } 10351 return mHandle; 10352 } 10353 10354 @Override 10355 public void onDetached() { 10356 final ViewTreeObserver observer = getViewTreeObserver(); 10357 observer.removeOnTouchModeChangeListener(this); 10358 10359 if (mHandle != null) mHandle.onDetached(); 10360 } 10361 } 10362 10363 private class SelectionModifierCursorController implements CursorController { 10364 private static final int DELAY_BEFORE_REPLACE_ACTION = 1200; 10365 // The cursor controller handles, lazily created when shown. 10366 private SelectionStartHandleView mStartHandle; 10367 private SelectionEndHandleView mEndHandle; 10368 // The offsets of that last touch down event. Remembered to start selection there. 10369 private int mMinTouchOffset, mMaxTouchOffset; 10370 10371 // Double tap detection 10372 private long mPreviousTapUpTime = 0; 10373 private float mPreviousTapPositionX, mPreviousTapPositionY; 10374 10375 SelectionModifierCursorController() { 10376 resetTouchOffsets(); 10377 } 10378 10379 public void show() { 10380 if (isInBatchEditMode()) { 10381 return; 10382 } 10383 10384 // Lazy object creation has to be done before updatePosition() is called. 10385 if (mStartHandle == null) mStartHandle = new SelectionStartHandleView(); 10386 if (mEndHandle == null) mEndHandle = new SelectionEndHandleView(); 10387 10388 mStartHandle.show(); 10389 mEndHandle.show(); 10390 10391 // Make sure both left and right handles share the same ActionPopupWindow (so that 10392 // moving any of the handles hides the action popup). 10393 mStartHandle.showActionPopupWindow(DELAY_BEFORE_REPLACE_ACTION); 10394 mEndHandle.setActionPopupWindow(mStartHandle.getActionPopupWindow()); 10395 10396 hideInsertionPointCursorController(); 10397 hideSuggestions(); 10398 } 10399 10400 public void hide() { 10401 if (mStartHandle != null) mStartHandle.hide(); 10402 if (mEndHandle != null) mEndHandle.hide(); 10403 } 10404 10405 public void onTouchEvent(MotionEvent event) { 10406 // This is done even when the View does not have focus, so that long presses can start 10407 // selection and tap can move cursor from this tap position. 10408 switch (event.getActionMasked()) { 10409 case MotionEvent.ACTION_DOWN: 10410 final float x = event.getX(); 10411 final float y = event.getY(); 10412 10413 // Remember finger down position, to be able to start selection from there 10414 mMinTouchOffset = mMaxTouchOffset = getOffsetForPosition(x, y); 10415 10416 // Double tap detection 10417 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 10418 if (duration <= ViewConfiguration.getDoubleTapTimeout() && 10419 isPositionOnText(x, y)) { 10420 final float deltaX = x - mPreviousTapPositionX; 10421 final float deltaY = y - mPreviousTapPositionY; 10422 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 10423 if (distanceSquared < mSquaredTouchSlopDistance) { 10424 startSelectionActionMode(); 10425 mDiscardNextActionUp = true; 10426 } 10427 } 10428 10429 mPreviousTapPositionX = x; 10430 mPreviousTapPositionY = y; 10431 break; 10432 10433 case MotionEvent.ACTION_POINTER_DOWN: 10434 case MotionEvent.ACTION_POINTER_UP: 10435 // Handle multi-point gestures. Keep min and max offset positions. 10436 // Only activated for devices that correctly handle multi-touch. 10437 if (mContext.getPackageManager().hasSystemFeature( 10438 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 10439 updateMinAndMaxOffsets(event); 10440 } 10441 break; 10442 10443 case MotionEvent.ACTION_UP: 10444 mPreviousTapUpTime = SystemClock.uptimeMillis(); 10445 break; 10446 } 10447 } 10448 10449 /** 10450 * @param event 10451 */ 10452 private void updateMinAndMaxOffsets(MotionEvent event) { 10453 int pointerCount = event.getPointerCount(); 10454 for (int index = 0; index < pointerCount; index++) { 10455 int offset = getOffsetForPosition(event.getX(index), event.getY(index)); 10456 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 10457 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 10458 } 10459 } 10460 10461 public int getMinTouchOffset() { 10462 return mMinTouchOffset; 10463 } 10464 10465 public int getMaxTouchOffset() { 10466 return mMaxTouchOffset; 10467 } 10468 10469 public void resetTouchOffsets() { 10470 mMinTouchOffset = mMaxTouchOffset = -1; 10471 } 10472 10473 /** 10474 * @return true iff this controller is currently used to move the selection start. 10475 */ 10476 public boolean isSelectionStartDragged() { 10477 return mStartHandle != null && mStartHandle.isDragging(); 10478 } 10479 10480 public void onTouchModeChanged(boolean isInTouchMode) { 10481 if (!isInTouchMode) { 10482 hide(); 10483 } 10484 } 10485 10486 @Override 10487 public void onDetached() { 10488 final ViewTreeObserver observer = getViewTreeObserver(); 10489 observer.removeOnTouchModeChangeListener(this); 10490 10491 if (mStartHandle != null) mStartHandle.onDetached(); 10492 if (mEndHandle != null) mEndHandle.onDetached(); 10493 } 10494 } 10495 10496 private void hideInsertionPointCursorController() { 10497 // No need to create the controller to hide it. 10498 if (mInsertionPointCursorController != null) { 10499 mInsertionPointCursorController.hide(); 10500 } 10501 } 10502 10503 /** 10504 * Hides the insertion controller and stops text selection mode, hiding the selection controller 10505 */ 10506 private void hideControllers() { 10507 hideInsertionPointCursorController(); 10508 stopSelectionActionMode(); 10509 hideSuggestions(); 10510 } 10511 10512 /** 10513 * Get the character offset closest to the specified absolute position. A typical use case is to 10514 * pass the result of {@link MotionEvent#getX()} and {@link MotionEvent#getY()} to this method. 10515 * 10516 * @param x The horizontal absolute position of a point on screen 10517 * @param y The vertical absolute position of a point on screen 10518 * @return the character offset for the character whose position is closest to the specified 10519 * position. Returns -1 if there is no layout. 10520 */ 10521 public int getOffsetForPosition(float x, float y) { 10522 if (getLayout() == null) return -1; 10523 final int line = getLineAtCoordinate(y); 10524 final int offset = getOffsetAtCoordinate(line, x); 10525 return offset; 10526 } 10527 10528 private float convertToLocalHorizontalCoordinate(float x) { 10529 x -= getTotalPaddingLeft(); 10530 // Clamp the position to inside of the view. 10531 x = Math.max(0.0f, x); 10532 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 10533 x += getScrollX(); 10534 return x; 10535 } 10536 10537 private int getLineAtCoordinate(float y) { 10538 y -= getTotalPaddingTop(); 10539 // Clamp the position to inside of the view. 10540 y = Math.max(0.0f, y); 10541 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 10542 y += getScrollY(); 10543 return getLayout().getLineForVertical((int) y); 10544 } 10545 10546 private int getOffsetAtCoordinate(int line, float x) { 10547 x = convertToLocalHorizontalCoordinate(x); 10548 return getLayout().getOffsetForHorizontal(line, x); 10549 } 10550 10551 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 10552 * in the view. Returns false when the position is in the empty space of left/right of text. 10553 */ 10554 private boolean isPositionOnText(float x, float y) { 10555 if (getLayout() == null) return false; 10556 10557 final int line = getLineAtCoordinate(y); 10558 x = convertToLocalHorizontalCoordinate(x); 10559 10560 if (x < getLayout().getLineLeft(line)) return false; 10561 if (x > getLayout().getLineRight(line)) return false; 10562 return true; 10563 } 10564 10565 @Override 10566 public boolean onDragEvent(DragEvent event) { 10567 switch (event.getAction()) { 10568 case DragEvent.ACTION_DRAG_STARTED: 10569 return hasInsertionController(); 10570 10571 case DragEvent.ACTION_DRAG_ENTERED: 10572 TextView.this.requestFocus(); 10573 return true; 10574 10575 case DragEvent.ACTION_DRAG_LOCATION: 10576 final int offset = getOffsetForPosition(event.getX(), event.getY()); 10577 Selection.setSelection((Spannable)mText, offset); 10578 return true; 10579 10580 case DragEvent.ACTION_DROP: 10581 onDrop(event); 10582 return true; 10583 10584 case DragEvent.ACTION_DRAG_ENDED: 10585 case DragEvent.ACTION_DRAG_EXITED: 10586 default: 10587 return true; 10588 } 10589 } 10590 10591 private void onDrop(DragEvent event) { 10592 StringBuilder content = new StringBuilder(""); 10593 ClipData clipData = event.getClipData(); 10594 final int itemCount = clipData.getItemCount(); 10595 for (int i=0; i < itemCount; i++) { 10596 Item item = clipData.getItemAt(i); 10597 content.append(item.coerceToText(TextView.this.mContext)); 10598 } 10599 10600 final int offset = getOffsetForPosition(event.getX(), event.getY()); 10601 10602 Object localState = event.getLocalState(); 10603 DragLocalState dragLocalState = null; 10604 if (localState instanceof DragLocalState) { 10605 dragLocalState = (DragLocalState) localState; 10606 } 10607 boolean dragDropIntoItself = dragLocalState != null && 10608 dragLocalState.sourceTextView == this; 10609 10610 if (dragDropIntoItself) { 10611 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 10612 // A drop inside the original selection discards the drop. 10613 return; 10614 } 10615 } 10616 10617 final int originalLength = mText.length(); 10618 long minMax = prepareSpacesAroundPaste(offset, offset, content); 10619 int min = extractRangeStartFromLong(minMax); 10620 int max = extractRangeEndFromLong(minMax); 10621 10622 Selection.setSelection((Spannable) mText, max); 10623 ((Editable) mText).replace(min, max, content); 10624 10625 if (dragDropIntoItself) { 10626 int dragSourceStart = dragLocalState.start; 10627 int dragSourceEnd = dragLocalState.end; 10628 if (max <= dragSourceStart) { 10629 // Inserting text before selection has shifted positions 10630 final int shift = mText.length() - originalLength; 10631 dragSourceStart += shift; 10632 dragSourceEnd += shift; 10633 } 10634 10635 // Delete original selection 10636 ((Editable) mText).delete(dragSourceStart, dragSourceEnd); 10637 10638 // Make sure we do not leave two adjacent spaces. 10639 if ((dragSourceStart == 0 || 10640 Character.isSpaceChar(mTransformed.charAt(dragSourceStart - 1))) && 10641 (dragSourceStart == mText.length() || 10642 Character.isSpaceChar(mTransformed.charAt(dragSourceStart)))) { 10643 final int pos = dragSourceStart == mText.length() ? 10644 dragSourceStart - 1 : dragSourceStart; 10645 ((Editable) mText).delete(pos, pos + 1); 10646 } 10647 } 10648 } 10649 10650 /** 10651 * @return True if this view supports insertion handles. 10652 */ 10653 boolean hasInsertionController() { 10654 return mInsertionControllerEnabled; 10655 } 10656 10657 /** 10658 * @return True if this view supports selection handles. 10659 */ 10660 boolean hasSelectionController() { 10661 return mSelectionControllerEnabled; 10662 } 10663 10664 InsertionPointCursorController getInsertionController() { 10665 if (!mInsertionControllerEnabled) { 10666 return null; 10667 } 10668 10669 if (mInsertionPointCursorController == null) { 10670 mInsertionPointCursorController = new InsertionPointCursorController(); 10671 10672 final ViewTreeObserver observer = getViewTreeObserver(); 10673 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 10674 } 10675 10676 return mInsertionPointCursorController; 10677 } 10678 10679 SelectionModifierCursorController getSelectionController() { 10680 if (!mSelectionControllerEnabled) { 10681 return null; 10682 } 10683 10684 if (mSelectionModifierCursorController == null) { 10685 mSelectionModifierCursorController = new SelectionModifierCursorController(); 10686 10687 final ViewTreeObserver observer = getViewTreeObserver(); 10688 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 10689 } 10690 10691 return mSelectionModifierCursorController; 10692 } 10693 10694 boolean isInBatchEditMode() { 10695 final InputMethodState ims = mInputMethodState; 10696 if (ims != null) { 10697 return ims.mBatchEditNesting > 0; 10698 } 10699 return mInBatchEditControllers; 10700 } 10701 10702 @Override 10703 protected void resolveTextDirection() { 10704 // Always need to resolve layout direction first 10705 final boolean defaultIsRtl = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL); 10706 10707 // Then resolve text direction on the parent 10708 super.resolveTextDirection(); 10709 10710 // Now, we can select the heuristic 10711 int textDir = getResolvedTextDirection(); 10712 switch (textDir) { 10713 default: 10714 case TEXT_DIRECTION_FIRST_STRONG: 10715 mTextDir = (defaultIsRtl ? TextDirectionHeuristics.FIRSTSTRONG_RTL : 10716 TextDirectionHeuristics.FIRSTSTRONG_LTR); 10717 break; 10718 case TEXT_DIRECTION_ANY_RTL: 10719 mTextDir = TextDirectionHeuristics.ANYRTL_LTR; 10720 break; 10721 case TEXT_DIRECTION_CHAR_COUNT: 10722 mTextDir = (defaultIsRtl ? TextDirectionHeuristics.CHARCOUNT_RTL: 10723 TextDirectionHeuristics.CHARCOUNT_LTR); 10724 break; 10725 case TEXT_DIRECTION_LTR: 10726 mTextDir = TextDirectionHeuristics.LTR; 10727 break; 10728 case TEXT_DIRECTION_RTL: 10729 mTextDir = TextDirectionHeuristics.RTL; 10730 break; 10731 } 10732 } 10733 10734 /** 10735 * Subclasses will need to override this method to implement their own way of resolving 10736 * drawables depending on the layout direction. 10737 * 10738 * A call to the super method will be required from the subclasses implementation. 10739 * 10740 */ 10741 protected void resolveDrawables() { 10742 // No need to resolve twice 10743 if (mResolvedDrawables) { 10744 return; 10745 } 10746 // No drawable to resolve 10747 if (mDrawables == null) { 10748 return; 10749 } 10750 // No relative drawable to resolve 10751 if (mDrawables.mDrawableStart == null && mDrawables.mDrawableEnd == null) { 10752 mResolvedDrawables = true; 10753 return; 10754 } 10755 10756 Drawables dr = mDrawables; 10757 switch(getResolvedLayoutDirection()) { 10758 case LAYOUT_DIRECTION_RTL: 10759 if (dr.mDrawableStart != null) { 10760 dr.mDrawableRight = dr.mDrawableStart; 10761 10762 dr.mDrawableSizeRight = dr.mDrawableSizeStart; 10763 dr.mDrawableHeightRight = dr.mDrawableHeightStart; 10764 } 10765 if (dr.mDrawableEnd != null) { 10766 dr.mDrawableLeft = dr.mDrawableEnd; 10767 10768 dr.mDrawableSizeLeft = dr.mDrawableSizeEnd; 10769 dr.mDrawableHeightLeft = dr.mDrawableHeightEnd; 10770 } 10771 break; 10772 10773 case LAYOUT_DIRECTION_LTR: 10774 default: 10775 if (dr.mDrawableStart != null) { 10776 dr.mDrawableLeft = dr.mDrawableStart; 10777 10778 dr.mDrawableSizeLeft = dr.mDrawableSizeStart; 10779 dr.mDrawableHeightLeft = dr.mDrawableHeightStart; 10780 } 10781 if (dr.mDrawableEnd != null) { 10782 dr.mDrawableRight = dr.mDrawableEnd; 10783 10784 dr.mDrawableSizeRight = dr.mDrawableSizeEnd; 10785 dr.mDrawableHeightRight = dr.mDrawableHeightEnd; 10786 } 10787 break; 10788 } 10789 mResolvedDrawables = true; 10790 } 10791 10792 protected void resetResolvedDrawables() { 10793 mResolvedDrawables = false; 10794 } 10795 10796 @ViewDebug.ExportedProperty(category = "text") 10797 private CharSequence mText; 10798 private CharSequence mTransformed; 10799 private BufferType mBufferType = BufferType.NORMAL; 10800 10801 private int mInputType = EditorInfo.TYPE_NULL; 10802 private CharSequence mHint; 10803 private Layout mHintLayout; 10804 10805 private KeyListener mInput; 10806 10807 private MovementMethod mMovement; 10808 private TransformationMethod mTransformation; 10809 private boolean mAllowTransformationLengthChange; 10810 private ChangeWatcher mChangeWatcher; 10811 10812 private ArrayList<TextWatcher> mListeners = null; 10813 10814 // display attributes 10815 private final TextPaint mTextPaint; 10816 private boolean mUserSetTextScaleX; 10817 private final Paint mHighlightPaint; 10818 private int mHighlightColor = 0xCC475925; 10819 /** 10820 * This is temporarily visible to fix bug 3085564 in webView. Do not rely on 10821 * this field being protected. Will be restored as private when lineHeight 10822 * feature request 3215097 is implemented 10823 * @hide 10824 */ 10825 protected Layout mLayout; 10826 10827 private long mShowCursor; 10828 private Blink mBlink; 10829 private boolean mCursorVisible = true; 10830 10831 // Cursor Controllers. 10832 private InsertionPointCursorController mInsertionPointCursorController; 10833 private SelectionModifierCursorController mSelectionModifierCursorController; 10834 private ActionMode mSelectionActionMode; 10835 private boolean mInsertionControllerEnabled; 10836 private boolean mSelectionControllerEnabled; 10837 private boolean mInBatchEditControllers; 10838 10839 // These are needed to desambiguate a long click. If the long click comes from ones of these, we 10840 // select from the current cursor position. Otherwise, select from long pressed position. 10841 private boolean mDPadCenterIsDown = false; 10842 private boolean mEnterKeyIsDown = false; 10843 private boolean mContextMenuTriggeredByKey = false; 10844 10845 private boolean mSelectAllOnFocus = false; 10846 10847 private int mGravity = Gravity.TOP | Gravity.START; 10848 private boolean mHorizontallyScrolling; 10849 10850 private int mAutoLinkMask; 10851 private boolean mLinksClickable = true; 10852 10853 private float mSpacingMult = 1; 10854 private float mSpacingAdd = 0; 10855 private boolean mTextIsSelectable = false; 10856 10857 private static final int LINES = 1; 10858 private static final int EMS = LINES; 10859 private static final int PIXELS = 2; 10860 10861 private int mMaximum = Integer.MAX_VALUE; 10862 private int mMaxMode = LINES; 10863 private int mMinimum = 0; 10864 private int mMinMode = LINES; 10865 10866 private int mMaxWidth = Integer.MAX_VALUE; 10867 private int mMaxWidthMode = PIXELS; 10868 private int mMinWidth = 0; 10869 private int mMinWidthMode = PIXELS; 10870 10871 private boolean mSingleLine; 10872 private int mDesiredHeightAtMeasure = -1; 10873 private boolean mIncludePad = true; 10874 10875 // tmp primitives, so we don't alloc them on each draw 10876 private Path mHighlightPath; 10877 private boolean mHighlightPathBogus = true; 10878 private static final RectF sTempRect = new RectF(); 10879 10880 // XXX should be much larger 10881 private static final int VERY_WIDE = 16384; 10882 10883 private static final int BLINK = 500; 10884 10885 private static final int ANIMATED_SCROLL_GAP = 250; 10886 private long mLastScroll; 10887 private Scroller mScroller = null; 10888 10889 private BoringLayout.Metrics mBoring; 10890 private BoringLayout.Metrics mHintBoring; 10891 10892 private BoringLayout mSavedLayout, mSavedHintLayout; 10893 10894 private TextDirectionHeuristic mTextDir = null; 10895 10896 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 10897 private InputFilter[] mFilters = NO_FILTERS; 10898 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 10899 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 10900 // System wide time for last cut or copy action. 10901 private static long sLastCutOrCopyTime; 10902 // Used to highlight a word when it is corrected by the IME 10903 private CorrectionHighlighter mCorrectionHighlighter; 10904 // New state used to change background based on whether this TextView is multiline. 10905 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 10906} 10907