TextView.java revision ed6741817a6c075a306b5e9c63e6c08abc5b8dc6
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.TextPaint; 63import android.text.TextUtils; 64import android.text.TextWatcher; 65import android.text.method.ArrowKeyMovementMethod; 66import android.text.method.DateKeyListener; 67import android.text.method.DateTimeKeyListener; 68import android.text.method.DialerKeyListener; 69import android.text.method.DigitsKeyListener; 70import android.text.method.KeyListener; 71import android.text.method.LinkMovementMethod; 72import android.text.method.MetaKeyKeyListener; 73import android.text.method.MovementMethod; 74import android.text.method.PasswordTransformationMethod; 75import android.text.method.SingleLineTransformationMethod; 76import android.text.method.TextKeyListener; 77import android.text.method.TimeKeyListener; 78import android.text.method.TransformationMethod; 79import android.text.method.WordIterator; 80import android.text.style.ClickableSpan; 81import android.text.style.ParagraphStyle; 82import android.text.style.SuggestionSpan; 83import android.text.style.TextAppearanceSpan; 84import android.text.style.URLSpan; 85import android.text.style.UnderlineSpan; 86import android.text.style.UpdateAppearance; 87import android.text.util.Linkify; 88import android.util.AttributeSet; 89import android.util.DisplayMetrics; 90import android.util.FloatMath; 91import android.util.Log; 92import android.util.TypedValue; 93import android.view.ActionMode; 94import android.view.ActionMode.Callback; 95import android.view.ContextMenu; 96import android.view.DragEvent; 97import android.view.Gravity; 98import android.view.HapticFeedbackConstants; 99import android.view.KeyCharacterMap; 100import android.view.KeyEvent; 101import android.view.LayoutInflater; 102import android.view.Menu; 103import android.view.MenuItem; 104import android.view.MotionEvent; 105import android.view.View; 106import android.view.ViewAncestor; 107import android.view.ViewConfiguration; 108import android.view.ViewDebug; 109import android.view.ViewGroup; 110import android.view.ViewGroup.LayoutParams; 111import android.view.ViewParent; 112import android.view.ViewTreeObserver; 113import android.view.WindowManager; 114import android.view.accessibility.AccessibilityEvent; 115import android.view.accessibility.AccessibilityManager; 116import android.view.accessibility.AccessibilityNodeInfo; 117import android.view.animation.AnimationUtils; 118import android.view.inputmethod.BaseInputConnection; 119import android.view.inputmethod.CompletionInfo; 120import android.view.inputmethod.CorrectionInfo; 121import android.view.inputmethod.EditorInfo; 122import android.view.inputmethod.ExtractedText; 123import android.view.inputmethod.ExtractedTextRequest; 124import android.view.inputmethod.InputConnection; 125import android.view.inputmethod.InputMethodManager; 126import android.widget.RemoteViews.RemoteView; 127 128import com.android.internal.util.FastMath; 129import com.android.internal.widget.EditableInputConnection; 130 131import org.xmlpull.v1.XmlPullParserException; 132 133import java.io.IOException; 134import java.lang.ref.WeakReference; 135import java.text.BreakIterator; 136import java.util.ArrayList; 137 138/** 139 * Displays text to the user and optionally allows them to edit it. A TextView 140 * is a complete text editor, however the basic class is configured to not 141 * allow editing; see {@link EditText} for a subclass that configures the text 142 * view for editing. 143 * 144 * <p> 145 * <b>XML attributes</b> 146 * <p> 147 * See {@link android.R.styleable#TextView TextView Attributes}, 148 * {@link android.R.styleable#View View Attributes} 149 * 150 * @attr ref android.R.styleable#TextView_text 151 * @attr ref android.R.styleable#TextView_bufferType 152 * @attr ref android.R.styleable#TextView_hint 153 * @attr ref android.R.styleable#TextView_textColor 154 * @attr ref android.R.styleable#TextView_textColorHighlight 155 * @attr ref android.R.styleable#TextView_textColorHint 156 * @attr ref android.R.styleable#TextView_textAppearance 157 * @attr ref android.R.styleable#TextView_textColorLink 158 * @attr ref android.R.styleable#TextView_textSize 159 * @attr ref android.R.styleable#TextView_textScaleX 160 * @attr ref android.R.styleable#TextView_typeface 161 * @attr ref android.R.styleable#TextView_textStyle 162 * @attr ref android.R.styleable#TextView_cursorVisible 163 * @attr ref android.R.styleable#TextView_maxLines 164 * @attr ref android.R.styleable#TextView_maxHeight 165 * @attr ref android.R.styleable#TextView_lines 166 * @attr ref android.R.styleable#TextView_height 167 * @attr ref android.R.styleable#TextView_minLines 168 * @attr ref android.R.styleable#TextView_minHeight 169 * @attr ref android.R.styleable#TextView_maxEms 170 * @attr ref android.R.styleable#TextView_maxWidth 171 * @attr ref android.R.styleable#TextView_ems 172 * @attr ref android.R.styleable#TextView_width 173 * @attr ref android.R.styleable#TextView_minEms 174 * @attr ref android.R.styleable#TextView_minWidth 175 * @attr ref android.R.styleable#TextView_gravity 176 * @attr ref android.R.styleable#TextView_scrollHorizontally 177 * @attr ref android.R.styleable#TextView_password 178 * @attr ref android.R.styleable#TextView_singleLine 179 * @attr ref android.R.styleable#TextView_selectAllOnFocus 180 * @attr ref android.R.styleable#TextView_includeFontPadding 181 * @attr ref android.R.styleable#TextView_maxLength 182 * @attr ref android.R.styleable#TextView_shadowColor 183 * @attr ref android.R.styleable#TextView_shadowDx 184 * @attr ref android.R.styleable#TextView_shadowDy 185 * @attr ref android.R.styleable#TextView_shadowRadius 186 * @attr ref android.R.styleable#TextView_autoLink 187 * @attr ref android.R.styleable#TextView_linksClickable 188 * @attr ref android.R.styleable#TextView_numeric 189 * @attr ref android.R.styleable#TextView_digits 190 * @attr ref android.R.styleable#TextView_phoneNumber 191 * @attr ref android.R.styleable#TextView_inputMethod 192 * @attr ref android.R.styleable#TextView_capitalize 193 * @attr ref android.R.styleable#TextView_autoText 194 * @attr ref android.R.styleable#TextView_editable 195 * @attr ref android.R.styleable#TextView_freezesText 196 * @attr ref android.R.styleable#TextView_ellipsize 197 * @attr ref android.R.styleable#TextView_drawableTop 198 * @attr ref android.R.styleable#TextView_drawableBottom 199 * @attr ref android.R.styleable#TextView_drawableRight 200 * @attr ref android.R.styleable#TextView_drawableLeft 201 * @attr ref android.R.styleable#TextView_drawablePadding 202 * @attr ref android.R.styleable#TextView_lineSpacingExtra 203 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 204 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 205 * @attr ref android.R.styleable#TextView_inputType 206 * @attr ref android.R.styleable#TextView_imeOptions 207 * @attr ref android.R.styleable#TextView_privateImeOptions 208 * @attr ref android.R.styleable#TextView_imeActionLabel 209 * @attr ref android.R.styleable#TextView_imeActionId 210 * @attr ref android.R.styleable#TextView_editorExtras 211 */ 212@RemoteView 213public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 214 static final String LOG_TAG = "TextView"; 215 static final boolean DEBUG_EXTRACT = false; 216 217 private static final int PRIORITY = 100; 218 private int mCurrentAlpha = 255; 219 220 final int[] mTempCoords = new int[2]; 221 Rect mTempRect; 222 223 private ColorStateList mTextColor; 224 private int mCurTextColor; 225 private ColorStateList mHintTextColor; 226 private ColorStateList mLinkTextColor; 227 private int mCurHintTextColor; 228 private boolean mFreezesText; 229 private boolean mFrozenWithFocus; 230 private boolean mTemporaryDetach; 231 private boolean mDispatchTemporaryDetach; 232 233 private boolean mDiscardNextActionUp = false; 234 private boolean mIgnoreActionUpEvent = false; 235 236 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 237 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 238 239 private float mShadowRadius, mShadowDx, mShadowDy; 240 241 private static final int PREDRAW_NOT_REGISTERED = 0; 242 private static final int PREDRAW_PENDING = 1; 243 private static final int PREDRAW_DONE = 2; 244 private int mPreDrawState = PREDRAW_NOT_REGISTERED; 245 246 private TextUtils.TruncateAt mEllipsize = null; 247 248 // Enum for the "typeface" XML parameter. 249 // TODO: How can we get this from the XML instead of hardcoding it here? 250 private static final int SANS = 1; 251 private static final int SERIF = 2; 252 private static final int MONOSPACE = 3; 253 254 // Bitfield for the "numeric" XML parameter. 255 // TODO: How can we get this from the XML instead of hardcoding it here? 256 private static final int SIGNED = 2; 257 private static final int DECIMAL = 4; 258 259 class Drawables { 260 final Rect mCompoundRect = new Rect(); 261 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight; 262 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight; 263 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight; 264 int mDrawablePadding; 265 } 266 private Drawables mDrawables; 267 268 private CharSequence mError; 269 private boolean mErrorWasChanged; 270 private ErrorPopup mPopup; 271 /** 272 * This flag is set if the TextView tries to display an error before it 273 * is attached to the window (so its position is still unknown). 274 * It causes the error to be shown later, when onAttachedToWindow() 275 * is called. 276 */ 277 private boolean mShowErrorAfterAttach; 278 279 private CharWrapper mCharWrapper = null; 280 281 private boolean mSelectionMoved = false; 282 private boolean mTouchFocusSelected = false; 283 284 private Marquee mMarquee; 285 private boolean mRestartMarquee; 286 287 private int mMarqueeRepeatLimit = 3; 288 289 class InputContentType { 290 int imeOptions = EditorInfo.IME_NULL; 291 String privateImeOptions; 292 CharSequence imeActionLabel; 293 int imeActionId; 294 Bundle extras; 295 OnEditorActionListener onEditorActionListener; 296 boolean enterDown; 297 } 298 InputContentType mInputContentType; 299 300 class InputMethodState { 301 Rect mCursorRectInWindow = new Rect(); 302 RectF mTmpRectF = new RectF(); 303 float[] mTmpOffset = new float[2]; 304 ExtractedTextRequest mExtracting; 305 final ExtractedText mTmpExtracted = new ExtractedText(); 306 int mBatchEditNesting; 307 boolean mCursorChanged; 308 boolean mSelectionModeChanged; 309 boolean mContentChanged; 310 int mChangedStart, mChangedEnd, mChangedDelta; 311 } 312 InputMethodState mInputMethodState; 313 314 private int mTextSelectHandleLeftRes; 315 private int mTextSelectHandleRightRes; 316 private int mTextSelectHandleRes; 317 private int mTextEditPasteWindowLayout, mTextEditSidePasteWindowLayout; 318 private int mTextEditNoPasteWindowLayout, mTextEditSideNoPasteWindowLayout; 319 320 private int mTextEditSuggestionsBottomWindowLayout, mTextEditSuggestionsTopWindowLayout; 321 private int mTextEditSuggestionItemLayout; 322 private SuggestionsPopupWindow mSuggestionsPopupWindow; 323 private SuggestionRangeSpan mSuggestionRangeSpan; 324 private boolean mSuggestionsEnabled = true; 325 326 private int mCursorDrawableRes; 327 private final Drawable[] mCursorDrawable = new Drawable[2]; 328 private int mCursorCount; // Actual current number of used mCursorDrawable: 0, 1 or 2 329 330 private Drawable mSelectHandleLeft; 331 private Drawable mSelectHandleRight; 332 private Drawable mSelectHandleCenter; 333 334 private float mLastDownPositionX, mLastDownPositionY; 335 private Callback mCustomSelectionActionModeCallback; 336 337 private final int mSquaredTouchSlopDistance; 338 // Set when this TextView gained focus with some text selected. Will start selection mode. 339 private boolean mCreatedWithASelection = false; 340 341 private WordIterator mWordIterator; 342 343 /* 344 * Kick-start the font cache for the zygote process (to pay the cost of 345 * initializing freetype for our default font only once). 346 */ 347 static { 348 Paint p = new Paint(); 349 p.setAntiAlias(true); 350 // We don't care about the result, just the side-effect of measuring. 351 p.measureText("H"); 352 } 353 354 /** 355 * Interface definition for a callback to be invoked when an action is 356 * performed on the editor. 357 */ 358 public interface OnEditorActionListener { 359 /** 360 * Called when an action is being performed. 361 * 362 * @param v The view that was clicked. 363 * @param actionId Identifier of the action. This will be either the 364 * identifier you supplied, or {@link EditorInfo#IME_NULL 365 * EditorInfo.IME_NULL} if being called due to the enter key 366 * being pressed. 367 * @param event If triggered by an enter key, this is the event; 368 * otherwise, this is null. 369 * @return Return true if you have consumed the action, else false. 370 */ 371 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 372 } 373 374 public TextView(Context context) { 375 this(context, null); 376 } 377 378 public TextView(Context context, 379 AttributeSet attrs) { 380 this(context, attrs, com.android.internal.R.attr.textViewStyle); 381 } 382 383 @SuppressWarnings("deprecation") 384 public TextView(Context context, 385 AttributeSet attrs, 386 int defStyle) { 387 super(context, attrs, defStyle); 388 mText = ""; 389 390 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 391 mTextPaint.density = getResources().getDisplayMetrics().density; 392 mTextPaint.setCompatibilityScaling( 393 getResources().getCompatibilityInfo().applicationScale); 394 395 // If we get the paint from the skin, we should set it to left, since 396 // the layout always wants it to be left. 397 // mTextPaint.setTextAlign(Paint.Align.LEFT); 398 399 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 400 mHighlightPaint.setCompatibilityScaling( 401 getResources().getCompatibilityInfo().applicationScale); 402 403 mMovement = getDefaultMovementMethod(); 404 mTransformation = null; 405 406 TypedArray a = 407 context.obtainStyledAttributes( 408 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 409 410 int textColorHighlight = 0; 411 ColorStateList textColor = null; 412 ColorStateList textColorHint = null; 413 ColorStateList textColorLink = null; 414 int textSize = 15; 415 int typefaceIndex = -1; 416 int styleIndex = -1; 417 418 /* 419 * Look the appearance up without checking first if it exists because 420 * almost every TextView has one and it greatly simplifies the logic 421 * to be able to parse the appearance first and then let specific tags 422 * for this View override it. 423 */ 424 TypedArray appearance = null; 425 int ap = a.getResourceId(com.android.internal.R.styleable.TextView_textAppearance, -1); 426 if (ap != -1) { 427 appearance = context.obtainStyledAttributes(ap, 428 com.android.internal.R.styleable. 429 TextAppearance); 430 } 431 if (appearance != null) { 432 int n = appearance.getIndexCount(); 433 for (int i = 0; i < n; i++) { 434 int attr = appearance.getIndex(i); 435 436 switch (attr) { 437 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 438 textColorHighlight = appearance.getColor(attr, textColorHighlight); 439 break; 440 441 case com.android.internal.R.styleable.TextAppearance_textColor: 442 textColor = appearance.getColorStateList(attr); 443 break; 444 445 case com.android.internal.R.styleable.TextAppearance_textColorHint: 446 textColorHint = appearance.getColorStateList(attr); 447 break; 448 449 case com.android.internal.R.styleable.TextAppearance_textColorLink: 450 textColorLink = appearance.getColorStateList(attr); 451 break; 452 453 case com.android.internal.R.styleable.TextAppearance_textSize: 454 textSize = appearance.getDimensionPixelSize(attr, textSize); 455 break; 456 457 case com.android.internal.R.styleable.TextAppearance_typeface: 458 typefaceIndex = appearance.getInt(attr, -1); 459 break; 460 461 case com.android.internal.R.styleable.TextAppearance_textStyle: 462 styleIndex = appearance.getInt(attr, -1); 463 break; 464 } 465 } 466 467 appearance.recycle(); 468 } 469 470 boolean editable = getDefaultEditable(); 471 CharSequence inputMethod = null; 472 int numeric = 0; 473 CharSequence digits = null; 474 boolean phone = false; 475 boolean autotext = false; 476 int autocap = -1; 477 int buffertype = 0; 478 boolean selectallonfocus = false; 479 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 480 drawableBottom = null; 481 int drawablePadding = 0; 482 int ellipsize = -1; 483 boolean singleLine = false; 484 int maxlength = -1; 485 CharSequence text = ""; 486 CharSequence hint = null; 487 int shadowcolor = 0; 488 float dx = 0, dy = 0, r = 0; 489 boolean password = false; 490 int inputType = EditorInfo.TYPE_NULL; 491 492 int n = a.getIndexCount(); 493 for (int i = 0; i < n; i++) { 494 int attr = a.getIndex(i); 495 496 switch (attr) { 497 case com.android.internal.R.styleable.TextView_editable: 498 editable = a.getBoolean(attr, editable); 499 break; 500 501 case com.android.internal.R.styleable.TextView_inputMethod: 502 inputMethod = a.getText(attr); 503 break; 504 505 case com.android.internal.R.styleable.TextView_numeric: 506 numeric = a.getInt(attr, numeric); 507 break; 508 509 case com.android.internal.R.styleable.TextView_digits: 510 digits = a.getText(attr); 511 break; 512 513 case com.android.internal.R.styleable.TextView_phoneNumber: 514 phone = a.getBoolean(attr, phone); 515 break; 516 517 case com.android.internal.R.styleable.TextView_autoText: 518 autotext = a.getBoolean(attr, autotext); 519 break; 520 521 case com.android.internal.R.styleable.TextView_capitalize: 522 autocap = a.getInt(attr, autocap); 523 break; 524 525 case com.android.internal.R.styleable.TextView_bufferType: 526 buffertype = a.getInt(attr, buffertype); 527 break; 528 529 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 530 selectallonfocus = a.getBoolean(attr, selectallonfocus); 531 break; 532 533 case com.android.internal.R.styleable.TextView_autoLink: 534 mAutoLinkMask = a.getInt(attr, 0); 535 break; 536 537 case com.android.internal.R.styleable.TextView_linksClickable: 538 mLinksClickable = a.getBoolean(attr, true); 539 break; 540 541 case com.android.internal.R.styleable.TextView_drawableLeft: 542 drawableLeft = a.getDrawable(attr); 543 break; 544 545 case com.android.internal.R.styleable.TextView_drawableTop: 546 drawableTop = a.getDrawable(attr); 547 break; 548 549 case com.android.internal.R.styleable.TextView_drawableRight: 550 drawableRight = a.getDrawable(attr); 551 break; 552 553 case com.android.internal.R.styleable.TextView_drawableBottom: 554 drawableBottom = a.getDrawable(attr); 555 break; 556 557 case com.android.internal.R.styleable.TextView_drawablePadding: 558 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 559 break; 560 561 case com.android.internal.R.styleable.TextView_maxLines: 562 setMaxLines(a.getInt(attr, -1)); 563 break; 564 565 case com.android.internal.R.styleable.TextView_maxHeight: 566 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 567 break; 568 569 case com.android.internal.R.styleable.TextView_lines: 570 setLines(a.getInt(attr, -1)); 571 break; 572 573 case com.android.internal.R.styleable.TextView_height: 574 setHeight(a.getDimensionPixelSize(attr, -1)); 575 break; 576 577 case com.android.internal.R.styleable.TextView_minLines: 578 setMinLines(a.getInt(attr, -1)); 579 break; 580 581 case com.android.internal.R.styleable.TextView_minHeight: 582 setMinHeight(a.getDimensionPixelSize(attr, -1)); 583 break; 584 585 case com.android.internal.R.styleable.TextView_maxEms: 586 setMaxEms(a.getInt(attr, -1)); 587 break; 588 589 case com.android.internal.R.styleable.TextView_maxWidth: 590 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 591 break; 592 593 case com.android.internal.R.styleable.TextView_ems: 594 setEms(a.getInt(attr, -1)); 595 break; 596 597 case com.android.internal.R.styleable.TextView_width: 598 setWidth(a.getDimensionPixelSize(attr, -1)); 599 break; 600 601 case com.android.internal.R.styleable.TextView_minEms: 602 setMinEms(a.getInt(attr, -1)); 603 break; 604 605 case com.android.internal.R.styleable.TextView_minWidth: 606 setMinWidth(a.getDimensionPixelSize(attr, -1)); 607 break; 608 609 case com.android.internal.R.styleable.TextView_gravity: 610 setGravity(a.getInt(attr, -1)); 611 break; 612 613 case com.android.internal.R.styleable.TextView_hint: 614 hint = a.getText(attr); 615 break; 616 617 case com.android.internal.R.styleable.TextView_text: 618 text = a.getText(attr); 619 break; 620 621 case com.android.internal.R.styleable.TextView_scrollHorizontally: 622 if (a.getBoolean(attr, false)) { 623 setHorizontallyScrolling(true); 624 } 625 break; 626 627 case com.android.internal.R.styleable.TextView_singleLine: 628 singleLine = a.getBoolean(attr, singleLine); 629 break; 630 631 case com.android.internal.R.styleable.TextView_ellipsize: 632 ellipsize = a.getInt(attr, ellipsize); 633 break; 634 635 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 636 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 637 break; 638 639 case com.android.internal.R.styleable.TextView_includeFontPadding: 640 if (!a.getBoolean(attr, true)) { 641 setIncludeFontPadding(false); 642 } 643 break; 644 645 case com.android.internal.R.styleable.TextView_cursorVisible: 646 if (!a.getBoolean(attr, true)) { 647 setCursorVisible(false); 648 } 649 break; 650 651 case com.android.internal.R.styleable.TextView_maxLength: 652 maxlength = a.getInt(attr, -1); 653 break; 654 655 case com.android.internal.R.styleable.TextView_textScaleX: 656 setTextScaleX(a.getFloat(attr, 1.0f)); 657 break; 658 659 case com.android.internal.R.styleable.TextView_freezesText: 660 mFreezesText = a.getBoolean(attr, false); 661 break; 662 663 case com.android.internal.R.styleable.TextView_shadowColor: 664 shadowcolor = a.getInt(attr, 0); 665 break; 666 667 case com.android.internal.R.styleable.TextView_shadowDx: 668 dx = a.getFloat(attr, 0); 669 break; 670 671 case com.android.internal.R.styleable.TextView_shadowDy: 672 dy = a.getFloat(attr, 0); 673 break; 674 675 case com.android.internal.R.styleable.TextView_shadowRadius: 676 r = a.getFloat(attr, 0); 677 break; 678 679 case com.android.internal.R.styleable.TextView_enabled: 680 setEnabled(a.getBoolean(attr, isEnabled())); 681 break; 682 683 case com.android.internal.R.styleable.TextView_textColorHighlight: 684 textColorHighlight = a.getColor(attr, textColorHighlight); 685 break; 686 687 case com.android.internal.R.styleable.TextView_textColor: 688 textColor = a.getColorStateList(attr); 689 break; 690 691 case com.android.internal.R.styleable.TextView_textColorHint: 692 textColorHint = a.getColorStateList(attr); 693 break; 694 695 case com.android.internal.R.styleable.TextView_textColorLink: 696 textColorLink = a.getColorStateList(attr); 697 break; 698 699 case com.android.internal.R.styleable.TextView_textSize: 700 textSize = a.getDimensionPixelSize(attr, textSize); 701 break; 702 703 case com.android.internal.R.styleable.TextView_typeface: 704 typefaceIndex = a.getInt(attr, typefaceIndex); 705 break; 706 707 case com.android.internal.R.styleable.TextView_textStyle: 708 styleIndex = a.getInt(attr, styleIndex); 709 break; 710 711 case com.android.internal.R.styleable.TextView_password: 712 password = a.getBoolean(attr, password); 713 break; 714 715 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 716 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 717 break; 718 719 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 720 mSpacingMult = a.getFloat(attr, mSpacingMult); 721 break; 722 723 case com.android.internal.R.styleable.TextView_inputType: 724 inputType = a.getInt(attr, mInputType); 725 break; 726 727 case com.android.internal.R.styleable.TextView_imeOptions: 728 if (mInputContentType == null) { 729 mInputContentType = new InputContentType(); 730 } 731 mInputContentType.imeOptions = a.getInt(attr, 732 mInputContentType.imeOptions); 733 break; 734 735 case com.android.internal.R.styleable.TextView_imeActionLabel: 736 if (mInputContentType == null) { 737 mInputContentType = new InputContentType(); 738 } 739 mInputContentType.imeActionLabel = a.getText(attr); 740 break; 741 742 case com.android.internal.R.styleable.TextView_imeActionId: 743 if (mInputContentType == null) { 744 mInputContentType = new InputContentType(); 745 } 746 mInputContentType.imeActionId = a.getInt(attr, 747 mInputContentType.imeActionId); 748 break; 749 750 case com.android.internal.R.styleable.TextView_privateImeOptions: 751 setPrivateImeOptions(a.getString(attr)); 752 break; 753 754 case com.android.internal.R.styleable.TextView_editorExtras: 755 try { 756 setInputExtras(a.getResourceId(attr, 0)); 757 } catch (XmlPullParserException e) { 758 Log.w(LOG_TAG, "Failure reading input extras", e); 759 } catch (IOException e) { 760 Log.w(LOG_TAG, "Failure reading input extras", e); 761 } 762 break; 763 764 case com.android.internal.R.styleable.TextView_textCursorDrawable: 765 mCursorDrawableRes = a.getResourceId(attr, 0); 766 break; 767 768 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 769 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 770 break; 771 772 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 773 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 774 break; 775 776 case com.android.internal.R.styleable.TextView_textSelectHandle: 777 mTextSelectHandleRes = a.getResourceId(attr, 0); 778 break; 779 780 case com.android.internal.R.styleable.TextView_textEditPasteWindowLayout: 781 mTextEditPasteWindowLayout = a.getResourceId(attr, 0); 782 break; 783 784 case com.android.internal.R.styleable.TextView_textEditNoPasteWindowLayout: 785 mTextEditNoPasteWindowLayout = a.getResourceId(attr, 0); 786 break; 787 788 case com.android.internal.R.styleable.TextView_textEditSidePasteWindowLayout: 789 mTextEditSidePasteWindowLayout = a.getResourceId(attr, 0); 790 break; 791 792 case com.android.internal.R.styleable.TextView_textEditSideNoPasteWindowLayout: 793 mTextEditSideNoPasteWindowLayout = a.getResourceId(attr, 0); 794 break; 795 796 case com.android.internal.R.styleable.TextView_textEditSuggestionsBottomWindowLayout: 797 mTextEditSuggestionsBottomWindowLayout = a.getResourceId(attr, 0); 798 break; 799 800 case com.android.internal.R.styleable.TextView_textEditSuggestionsTopWindowLayout: 801 mTextEditSuggestionsTopWindowLayout = a.getResourceId(attr, 0); 802 break; 803 804 case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout: 805 mTextEditSuggestionItemLayout = a.getResourceId(attr, 0); 806 break; 807 808 case com.android.internal.R.styleable.TextView_textIsSelectable: 809 mTextIsSelectable = a.getBoolean(attr, false); 810 break; 811 812 case com.android.internal.R.styleable.TextView_suggestionsEnabled: 813 mSuggestionsEnabled = a.getBoolean(attr, true); 814 break; 815 } 816 } 817 a.recycle(); 818 819 BufferType bufferType = BufferType.EDITABLE; 820 821 final int variation = 822 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 823 final boolean passwordInputType = variation 824 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 825 final boolean webPasswordInputType = variation 826 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 827 final boolean numberPasswordInputType = variation 828 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 829 830 if (inputMethod != null) { 831 Class<?> c; 832 833 try { 834 c = Class.forName(inputMethod.toString()); 835 } catch (ClassNotFoundException ex) { 836 throw new RuntimeException(ex); 837 } 838 839 try { 840 mInput = (KeyListener) c.newInstance(); 841 } catch (InstantiationException ex) { 842 throw new RuntimeException(ex); 843 } catch (IllegalAccessException ex) { 844 throw new RuntimeException(ex); 845 } 846 try { 847 mInputType = inputType != EditorInfo.TYPE_NULL 848 ? inputType 849 : mInput.getInputType(); 850 } catch (IncompatibleClassChangeError e) { 851 mInputType = EditorInfo.TYPE_CLASS_TEXT; 852 } 853 } else if (digits != null) { 854 mInput = DigitsKeyListener.getInstance(digits.toString()); 855 // If no input type was specified, we will default to generic 856 // text, since we can't tell the IME about the set of digits 857 // that was selected. 858 mInputType = inputType != EditorInfo.TYPE_NULL 859 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 860 } else if (inputType != EditorInfo.TYPE_NULL) { 861 setInputType(inputType, true); 862 // If set, the input type overrides what was set using the deprecated singleLine flag. 863 singleLine = !isMultilineInputType(inputType); 864 } else if (phone) { 865 mInput = DialerKeyListener.getInstance(); 866 mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 867 } else if (numeric != 0) { 868 mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 869 (numeric & DECIMAL) != 0); 870 inputType = EditorInfo.TYPE_CLASS_NUMBER; 871 if ((numeric & SIGNED) != 0) { 872 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 873 } 874 if ((numeric & DECIMAL) != 0) { 875 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 876 } 877 mInputType = inputType; 878 } else if (autotext || autocap != -1) { 879 TextKeyListener.Capitalize cap; 880 881 inputType = EditorInfo.TYPE_CLASS_TEXT; 882 883 switch (autocap) { 884 case 1: 885 cap = TextKeyListener.Capitalize.SENTENCES; 886 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 887 break; 888 889 case 2: 890 cap = TextKeyListener.Capitalize.WORDS; 891 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 892 break; 893 894 case 3: 895 cap = TextKeyListener.Capitalize.CHARACTERS; 896 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 897 break; 898 899 default: 900 cap = TextKeyListener.Capitalize.NONE; 901 break; 902 } 903 904 mInput = TextKeyListener.getInstance(autotext, cap); 905 mInputType = inputType; 906 } else if (mTextIsSelectable) { 907 // Prevent text changes from keyboard. 908 mInputType = EditorInfo.TYPE_NULL; 909 mInput = null; 910 bufferType = BufferType.SPANNABLE; 911 // Required to request focus while in touch mode. 912 setFocusableInTouchMode(true); 913 // So that selection can be changed using arrow keys and touch is handled. 914 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 915 } else if (editable) { 916 mInput = TextKeyListener.getInstance(); 917 mInputType = EditorInfo.TYPE_CLASS_TEXT; 918 } else { 919 mInput = null; 920 921 switch (buffertype) { 922 case 0: 923 bufferType = BufferType.NORMAL; 924 break; 925 case 1: 926 bufferType = BufferType.SPANNABLE; 927 break; 928 case 2: 929 bufferType = BufferType.EDITABLE; 930 break; 931 } 932 } 933 934 // mInputType has been set from inputType, possibly modified by mInputMethod. 935 // Specialize mInputType to [web]password if we have a text class and the original input 936 // type was a password. 937 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 938 if (password || passwordInputType) { 939 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 940 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 941 } 942 if (webPasswordInputType) { 943 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 944 | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 945 } 946 } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { 947 if (numberPasswordInputType) { 948 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 949 | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 950 } 951 } 952 953 if (selectallonfocus) { 954 mSelectAllOnFocus = true; 955 956 if (bufferType == BufferType.NORMAL) 957 bufferType = BufferType.SPANNABLE; 958 } 959 960 setCompoundDrawablesWithIntrinsicBounds( 961 drawableLeft, drawableTop, drawableRight, drawableBottom); 962 setCompoundDrawablePadding(drawablePadding); 963 964 // Same as setSingleLine(), but make sure the transformation method and the maximum number 965 // of lines of height are unchanged for multi-line TextViews. 966 setInputTypeSingleLine(singleLine); 967 applySingleLine(singleLine, singleLine, singleLine); 968 969 if (singleLine && mInput == null && ellipsize < 0) { 970 ellipsize = 3; // END 971 } 972 973 switch (ellipsize) { 974 case 1: 975 setEllipsize(TextUtils.TruncateAt.START); 976 break; 977 case 2: 978 setEllipsize(TextUtils.TruncateAt.MIDDLE); 979 break; 980 case 3: 981 setEllipsize(TextUtils.TruncateAt.END); 982 break; 983 case 4: 984 setHorizontalFadingEdgeEnabled(true); 985 setEllipsize(TextUtils.TruncateAt.MARQUEE); 986 break; 987 } 988 989 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 990 setHintTextColor(textColorHint); 991 setLinkTextColor(textColorLink); 992 if (textColorHighlight != 0) { 993 setHighlightColor(textColorHighlight); 994 } 995 setRawTextSize(textSize); 996 997 if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) { 998 setTransformationMethod(PasswordTransformationMethod.getInstance()); 999 typefaceIndex = MONOSPACE; 1000 } else if ((mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 1001 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 1002 typefaceIndex = MONOSPACE; 1003 } 1004 1005 setTypefaceByIndex(typefaceIndex, styleIndex); 1006 1007 if (shadowcolor != 0) { 1008 setShadowLayer(r, dx, dy, shadowcolor); 1009 } 1010 1011 if (maxlength >= 0) { 1012 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 1013 } else { 1014 setFilters(NO_FILTERS); 1015 } 1016 1017 setText(text, bufferType); 1018 if (hint != null) setHint(hint); 1019 1020 /* 1021 * Views are not normally focusable unless specified to be. 1022 * However, TextViews that have input or movement methods *are* 1023 * focusable by default. 1024 */ 1025 a = context.obtainStyledAttributes(attrs, 1026 com.android.internal.R.styleable.View, 1027 defStyle, 0); 1028 1029 boolean focusable = mMovement != null || mInput != null; 1030 boolean clickable = focusable; 1031 boolean longClickable = focusable; 1032 1033 n = a.getIndexCount(); 1034 for (int i = 0; i < n; i++) { 1035 int attr = a.getIndex(i); 1036 1037 switch (attr) { 1038 case com.android.internal.R.styleable.View_focusable: 1039 focusable = a.getBoolean(attr, focusable); 1040 break; 1041 1042 case com.android.internal.R.styleable.View_clickable: 1043 clickable = a.getBoolean(attr, clickable); 1044 break; 1045 1046 case com.android.internal.R.styleable.View_longClickable: 1047 longClickable = a.getBoolean(attr, longClickable); 1048 break; 1049 } 1050 } 1051 a.recycle(); 1052 1053 setFocusable(focusable); 1054 setClickable(clickable); 1055 setLongClickable(longClickable); 1056 1057 prepareCursorControllers(); 1058 1059 final ViewConfiguration viewConfiguration = ViewConfiguration.get(context); 1060 final int touchSlop = viewConfiguration.getScaledTouchSlop(); 1061 mSquaredTouchSlopDistance = touchSlop * touchSlop; 1062 } 1063 1064 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 1065 Typeface tf = null; 1066 switch (typefaceIndex) { 1067 case SANS: 1068 tf = Typeface.SANS_SERIF; 1069 break; 1070 1071 case SERIF: 1072 tf = Typeface.SERIF; 1073 break; 1074 1075 case MONOSPACE: 1076 tf = Typeface.MONOSPACE; 1077 break; 1078 } 1079 1080 setTypeface(tf, styleIndex); 1081 } 1082 1083 @Override 1084 public void setEnabled(boolean enabled) { 1085 if (enabled == isEnabled()) { 1086 return; 1087 } 1088 1089 if (!enabled) { 1090 // Hide the soft input if the currently active TextView is disabled 1091 InputMethodManager imm = InputMethodManager.peekInstance(); 1092 if (imm != null && imm.isActive(this)) { 1093 imm.hideSoftInputFromWindow(getWindowToken(), 0); 1094 } 1095 } 1096 super.setEnabled(enabled); 1097 } 1098 1099 /** 1100 * Sets the typeface and style in which the text should be displayed, 1101 * and turns on the fake bold and italic bits in the Paint if the 1102 * Typeface that you provided does not have all the bits in the 1103 * style that you specified. 1104 * 1105 * @attr ref android.R.styleable#TextView_typeface 1106 * @attr ref android.R.styleable#TextView_textStyle 1107 */ 1108 public void setTypeface(Typeface tf, int style) { 1109 if (style > 0) { 1110 if (tf == null) { 1111 tf = Typeface.defaultFromStyle(style); 1112 } else { 1113 tf = Typeface.create(tf, style); 1114 } 1115 1116 setTypeface(tf); 1117 // now compute what (if any) algorithmic styling is needed 1118 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1119 int need = style & ~typefaceStyle; 1120 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1121 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1122 } else { 1123 mTextPaint.setFakeBoldText(false); 1124 mTextPaint.setTextSkewX(0); 1125 setTypeface(tf); 1126 } 1127 } 1128 1129 /** 1130 * Subclasses override this to specify that they have a KeyListener 1131 * by default even if not specifically called for in the XML options. 1132 */ 1133 protected boolean getDefaultEditable() { 1134 return false; 1135 } 1136 1137 /** 1138 * Subclasses override this to specify a default movement method. 1139 */ 1140 protected MovementMethod getDefaultMovementMethod() { 1141 return null; 1142 } 1143 1144 /** 1145 * Return the text the TextView is displaying. If setText() was called with 1146 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1147 * the return value from this method to Spannable or Editable, respectively. 1148 * 1149 * Note: The content of the return value should not be modified. If you want 1150 * a modifiable one, you should make your own copy first. 1151 */ 1152 @ViewDebug.CapturedViewProperty 1153 public CharSequence getText() { 1154 return mText; 1155 } 1156 1157 /** 1158 * Returns the length, in characters, of the text managed by this TextView 1159 */ 1160 public int length() { 1161 return mText.length(); 1162 } 1163 1164 /** 1165 * Return the text the TextView is displaying as an Editable object. If 1166 * the text is not editable, null is returned. 1167 * 1168 * @see #getText 1169 */ 1170 public Editable getEditableText() { 1171 return (mText instanceof Editable) ? (Editable)mText : null; 1172 } 1173 1174 /** 1175 * @return the height of one standard line in pixels. Note that markup 1176 * within the text can cause individual lines to be taller or shorter 1177 * than this height, and the layout may contain additional first- 1178 * or last-line padding. 1179 */ 1180 public int getLineHeight() { 1181 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 1182 } 1183 1184 /** 1185 * @return the Layout that is currently being used to display the text. 1186 * This can be null if the text or width has recently changes. 1187 */ 1188 public final Layout getLayout() { 1189 return mLayout; 1190 } 1191 1192 /** 1193 * @return the current key listener for this TextView. 1194 * This will frequently be null for non-EditText TextViews. 1195 */ 1196 public final KeyListener getKeyListener() { 1197 return mInput; 1198 } 1199 1200 /** 1201 * Sets the key listener to be used with this TextView. This can be null 1202 * to disallow user input. Note that this method has significant and 1203 * subtle interactions with soft keyboards and other input method: 1204 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1205 * for important details. Calling this method will replace the current 1206 * content type of the text view with the content type returned by the 1207 * key listener. 1208 * <p> 1209 * Be warned that if you want a TextView with a key listener or movement 1210 * method not to be focusable, or if you want a TextView without a 1211 * key listener or movement method to be focusable, you must call 1212 * {@link #setFocusable} again after calling this to get the focusability 1213 * back the way you want it. 1214 * 1215 * @attr ref android.R.styleable#TextView_numeric 1216 * @attr ref android.R.styleable#TextView_digits 1217 * @attr ref android.R.styleable#TextView_phoneNumber 1218 * @attr ref android.R.styleable#TextView_inputMethod 1219 * @attr ref android.R.styleable#TextView_capitalize 1220 * @attr ref android.R.styleable#TextView_autoText 1221 */ 1222 public void setKeyListener(KeyListener input) { 1223 setKeyListenerOnly(input); 1224 fixFocusableAndClickableSettings(); 1225 1226 if (input != null) { 1227 try { 1228 mInputType = mInput.getInputType(); 1229 } catch (IncompatibleClassChangeError e) { 1230 mInputType = EditorInfo.TYPE_CLASS_TEXT; 1231 } 1232 // Change inputType, without affecting transformation. 1233 // No need to applySingleLine since mSingleLine is unchanged. 1234 setInputTypeSingleLine(mSingleLine); 1235 } else { 1236 mInputType = EditorInfo.TYPE_NULL; 1237 } 1238 1239 InputMethodManager imm = InputMethodManager.peekInstance(); 1240 if (imm != null) imm.restartInput(this); 1241 } 1242 1243 private void setKeyListenerOnly(KeyListener input) { 1244 mInput = input; 1245 if (mInput != null && !(mText instanceof Editable)) 1246 setText(mText); 1247 1248 setFilters((Editable) mText, mFilters); 1249 } 1250 1251 /** 1252 * @return the movement method being used for this TextView. 1253 * This will frequently be null for non-EditText TextViews. 1254 */ 1255 public final MovementMethod getMovementMethod() { 1256 return mMovement; 1257 } 1258 1259 /** 1260 * Sets the movement method (arrow key handler) to be used for 1261 * this TextView. This can be null to disallow using the arrow keys 1262 * to move the cursor or scroll the view. 1263 * <p> 1264 * Be warned that if you want a TextView with a key listener or movement 1265 * method not to be focusable, or if you want a TextView without a 1266 * key listener or movement method to be focusable, you must call 1267 * {@link #setFocusable} again after calling this to get the focusability 1268 * back the way you want it. 1269 */ 1270 public final void setMovementMethod(MovementMethod movement) { 1271 mMovement = movement; 1272 1273 if (mMovement != null && !(mText instanceof Spannable)) 1274 setText(mText); 1275 1276 fixFocusableAndClickableSettings(); 1277 1278 // SelectionModifierCursorController depends on textCanBeSelected, which depends on mMovement 1279 prepareCursorControllers(); 1280 } 1281 1282 private void fixFocusableAndClickableSettings() { 1283 if ((mMovement != null) || mInput != null) { 1284 setFocusable(true); 1285 setClickable(true); 1286 setLongClickable(true); 1287 } else { 1288 setFocusable(false); 1289 setClickable(false); 1290 setLongClickable(false); 1291 } 1292 } 1293 1294 /** 1295 * @return the current transformation method for this TextView. 1296 * This will frequently be null except for single-line and password 1297 * fields. 1298 */ 1299 public final TransformationMethod getTransformationMethod() { 1300 return mTransformation; 1301 } 1302 1303 /** 1304 * Sets the transformation that is applied to the text that this 1305 * TextView is displaying. 1306 * 1307 * @attr ref android.R.styleable#TextView_password 1308 * @attr ref android.R.styleable#TextView_singleLine 1309 */ 1310 public final void setTransformationMethod(TransformationMethod method) { 1311 if (method == mTransformation) { 1312 // Avoid the setText() below if the transformation is 1313 // the same. 1314 return; 1315 } 1316 if (mTransformation != null) { 1317 if (mText instanceof Spannable) { 1318 ((Spannable) mText).removeSpan(mTransformation); 1319 } 1320 } 1321 1322 mTransformation = method; 1323 1324 setText(mText); 1325 } 1326 1327 /** 1328 * Returns the top padding of the view, plus space for the top 1329 * Drawable if any. 1330 */ 1331 public int getCompoundPaddingTop() { 1332 final Drawables dr = mDrawables; 1333 if (dr == null || dr.mDrawableTop == null) { 1334 return mPaddingTop; 1335 } else { 1336 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1337 } 1338 } 1339 1340 /** 1341 * Returns the bottom padding of the view, plus space for the bottom 1342 * Drawable if any. 1343 */ 1344 public int getCompoundPaddingBottom() { 1345 final Drawables dr = mDrawables; 1346 if (dr == null || dr.mDrawableBottom == null) { 1347 return mPaddingBottom; 1348 } else { 1349 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1350 } 1351 } 1352 1353 /** 1354 * Returns the left padding of the view, plus space for the left 1355 * Drawable if any. 1356 */ 1357 public int getCompoundPaddingLeft() { 1358 final Drawables dr = mDrawables; 1359 if (dr == null || dr.mDrawableLeft == null) { 1360 return mPaddingLeft; 1361 } else { 1362 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1363 } 1364 } 1365 1366 /** 1367 * Returns the right padding of the view, plus space for the right 1368 * Drawable if any. 1369 */ 1370 public int getCompoundPaddingRight() { 1371 final Drawables dr = mDrawables; 1372 if (dr == null || dr.mDrawableRight == null) { 1373 return mPaddingRight; 1374 } else { 1375 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1376 } 1377 } 1378 1379 /** 1380 * Returns the extended top padding of the view, including both the 1381 * top Drawable if any and any extra space to keep more than maxLines 1382 * of text from showing. It is only valid to call this after measuring. 1383 */ 1384 public int getExtendedPaddingTop() { 1385 if (mMaxMode != LINES) { 1386 return getCompoundPaddingTop(); 1387 } 1388 1389 if (mLayout.getLineCount() <= mMaximum) { 1390 return getCompoundPaddingTop(); 1391 } 1392 1393 int top = getCompoundPaddingTop(); 1394 int bottom = getCompoundPaddingBottom(); 1395 int viewht = getHeight() - top - bottom; 1396 int layoutht = mLayout.getLineTop(mMaximum); 1397 1398 if (layoutht >= viewht) { 1399 return top; 1400 } 1401 1402 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1403 if (gravity == Gravity.TOP) { 1404 return top; 1405 } else if (gravity == Gravity.BOTTOM) { 1406 return top + viewht - layoutht; 1407 } else { // (gravity == Gravity.CENTER_VERTICAL) 1408 return top + (viewht - layoutht) / 2; 1409 } 1410 } 1411 1412 /** 1413 * Returns the extended bottom padding of the view, including both the 1414 * bottom Drawable if any and any extra space to keep more than maxLines 1415 * of text from showing. It is only valid to call this after measuring. 1416 */ 1417 public int getExtendedPaddingBottom() { 1418 if (mMaxMode != LINES) { 1419 return getCompoundPaddingBottom(); 1420 } 1421 1422 if (mLayout.getLineCount() <= mMaximum) { 1423 return getCompoundPaddingBottom(); 1424 } 1425 1426 int top = getCompoundPaddingTop(); 1427 int bottom = getCompoundPaddingBottom(); 1428 int viewht = getHeight() - top - bottom; 1429 int layoutht = mLayout.getLineTop(mMaximum); 1430 1431 if (layoutht >= viewht) { 1432 return bottom; 1433 } 1434 1435 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1436 if (gravity == Gravity.TOP) { 1437 return bottom + viewht - layoutht; 1438 } else if (gravity == Gravity.BOTTOM) { 1439 return bottom; 1440 } else { // (gravity == Gravity.CENTER_VERTICAL) 1441 return bottom + (viewht - layoutht) / 2; 1442 } 1443 } 1444 1445 /** 1446 * Returns the total left padding of the view, including the left 1447 * Drawable if any. 1448 */ 1449 public int getTotalPaddingLeft() { 1450 return getCompoundPaddingLeft(); 1451 } 1452 1453 /** 1454 * Returns the total right padding of the view, including the right 1455 * Drawable if any. 1456 */ 1457 public int getTotalPaddingRight() { 1458 return getCompoundPaddingRight(); 1459 } 1460 1461 /** 1462 * Returns the total top padding of the view, including the top 1463 * Drawable if any, the extra space to keep more than maxLines 1464 * from showing, and the vertical offset for gravity, if any. 1465 */ 1466 public int getTotalPaddingTop() { 1467 return getExtendedPaddingTop() + getVerticalOffset(true); 1468 } 1469 1470 /** 1471 * Returns the total bottom padding of the view, including the bottom 1472 * Drawable if any, the extra space to keep more than maxLines 1473 * from showing, and the vertical offset for gravity, if any. 1474 */ 1475 public int getTotalPaddingBottom() { 1476 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1477 } 1478 1479 /** 1480 * Sets the Drawables (if any) to appear to the left of, above, 1481 * to the right of, and below the text. Use null if you do not 1482 * want a Drawable there. The Drawables must already have had 1483 * {@link Drawable#setBounds} called. 1484 * 1485 * @attr ref android.R.styleable#TextView_drawableLeft 1486 * @attr ref android.R.styleable#TextView_drawableTop 1487 * @attr ref android.R.styleable#TextView_drawableRight 1488 * @attr ref android.R.styleable#TextView_drawableBottom 1489 */ 1490 public void setCompoundDrawables(Drawable left, Drawable top, 1491 Drawable right, Drawable bottom) { 1492 Drawables dr = mDrawables; 1493 1494 final boolean drawables = left != null || top != null 1495 || right != null || bottom != null; 1496 1497 if (!drawables) { 1498 // Clearing drawables... can we free the data structure? 1499 if (dr != null) { 1500 if (dr.mDrawablePadding == 0) { 1501 mDrawables = null; 1502 } else { 1503 // We need to retain the last set padding, so just clear 1504 // out all of the fields in the existing structure. 1505 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1506 dr.mDrawableLeft = null; 1507 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1508 dr.mDrawableTop = null; 1509 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1510 dr.mDrawableRight = null; 1511 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1512 dr.mDrawableBottom = null; 1513 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1514 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1515 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1516 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1517 } 1518 } 1519 } else { 1520 if (dr == null) { 1521 mDrawables = dr = new Drawables(); 1522 } 1523 1524 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1525 dr.mDrawableLeft.setCallback(null); 1526 } 1527 dr.mDrawableLeft = left; 1528 1529 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1530 dr.mDrawableTop.setCallback(null); 1531 } 1532 dr.mDrawableTop = top; 1533 1534 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1535 dr.mDrawableRight.setCallback(null); 1536 } 1537 dr.mDrawableRight = right; 1538 1539 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1540 dr.mDrawableBottom.setCallback(null); 1541 } 1542 dr.mDrawableBottom = bottom; 1543 1544 final Rect compoundRect = dr.mCompoundRect; 1545 int[] state; 1546 1547 state = getDrawableState(); 1548 1549 if (left != null) { 1550 left.setState(state); 1551 left.copyBounds(compoundRect); 1552 left.setCallback(this); 1553 dr.mDrawableSizeLeft = compoundRect.width(); 1554 dr.mDrawableHeightLeft = compoundRect.height(); 1555 } else { 1556 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1557 } 1558 1559 if (right != null) { 1560 right.setState(state); 1561 right.copyBounds(compoundRect); 1562 right.setCallback(this); 1563 dr.mDrawableSizeRight = compoundRect.width(); 1564 dr.mDrawableHeightRight = compoundRect.height(); 1565 } else { 1566 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1567 } 1568 1569 if (top != null) { 1570 top.setState(state); 1571 top.copyBounds(compoundRect); 1572 top.setCallback(this); 1573 dr.mDrawableSizeTop = compoundRect.height(); 1574 dr.mDrawableWidthTop = compoundRect.width(); 1575 } else { 1576 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1577 } 1578 1579 if (bottom != null) { 1580 bottom.setState(state); 1581 bottom.copyBounds(compoundRect); 1582 bottom.setCallback(this); 1583 dr.mDrawableSizeBottom = compoundRect.height(); 1584 dr.mDrawableWidthBottom = compoundRect.width(); 1585 } else { 1586 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1587 } 1588 } 1589 1590 invalidate(); 1591 requestLayout(); 1592 } 1593 1594 /** 1595 * Sets the Drawables (if any) to appear to the left of, above, 1596 * to the right of, and below the text. Use 0 if you do not 1597 * want a Drawable there. The Drawables' bounds will be set to 1598 * their intrinsic bounds. 1599 * 1600 * @param left Resource identifier of the left Drawable. 1601 * @param top Resource identifier of the top Drawable. 1602 * @param right Resource identifier of the right Drawable. 1603 * @param bottom Resource identifier of the bottom Drawable. 1604 * 1605 * @attr ref android.R.styleable#TextView_drawableLeft 1606 * @attr ref android.R.styleable#TextView_drawableTop 1607 * @attr ref android.R.styleable#TextView_drawableRight 1608 * @attr ref android.R.styleable#TextView_drawableBottom 1609 */ 1610 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1611 final Resources resources = getContext().getResources(); 1612 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1613 top != 0 ? resources.getDrawable(top) : null, 1614 right != 0 ? resources.getDrawable(right) : null, 1615 bottom != 0 ? resources.getDrawable(bottom) : null); 1616 } 1617 1618 /** 1619 * Sets the Drawables (if any) to appear to the left of, above, 1620 * to the right of, and below the text. Use null if you do not 1621 * want a Drawable there. The Drawables' bounds will be set to 1622 * their intrinsic bounds. 1623 * 1624 * @attr ref android.R.styleable#TextView_drawableLeft 1625 * @attr ref android.R.styleable#TextView_drawableTop 1626 * @attr ref android.R.styleable#TextView_drawableRight 1627 * @attr ref android.R.styleable#TextView_drawableBottom 1628 */ 1629 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1630 Drawable right, Drawable bottom) { 1631 1632 if (left != null) { 1633 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1634 } 1635 if (right != null) { 1636 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1637 } 1638 if (top != null) { 1639 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1640 } 1641 if (bottom != null) { 1642 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1643 } 1644 setCompoundDrawables(left, top, right, bottom); 1645 } 1646 1647 /** 1648 * Returns drawables for the left, top, right, and bottom borders. 1649 */ 1650 public Drawable[] getCompoundDrawables() { 1651 final Drawables dr = mDrawables; 1652 if (dr != null) { 1653 return new Drawable[] { 1654 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 1655 }; 1656 } else { 1657 return new Drawable[] { null, null, null, null }; 1658 } 1659 } 1660 1661 /** 1662 * Sets the size of the padding between the compound drawables and 1663 * the text. 1664 * 1665 * @attr ref android.R.styleable#TextView_drawablePadding 1666 */ 1667 public void setCompoundDrawablePadding(int pad) { 1668 Drawables dr = mDrawables; 1669 if (pad == 0) { 1670 if (dr != null) { 1671 dr.mDrawablePadding = pad; 1672 } 1673 } else { 1674 if (dr == null) { 1675 mDrawables = dr = new Drawables(); 1676 } 1677 dr.mDrawablePadding = pad; 1678 } 1679 1680 invalidate(); 1681 requestLayout(); 1682 } 1683 1684 /** 1685 * Returns the padding between the compound drawables and the text. 1686 */ 1687 public int getCompoundDrawablePadding() { 1688 final Drawables dr = mDrawables; 1689 return dr != null ? dr.mDrawablePadding : 0; 1690 } 1691 1692 @Override 1693 public void setPadding(int left, int top, int right, int bottom) { 1694 if (left != mPaddingLeft || 1695 right != mPaddingRight || 1696 top != mPaddingTop || 1697 bottom != mPaddingBottom) { 1698 nullLayouts(); 1699 } 1700 1701 // the super call will requestLayout() 1702 super.setPadding(left, top, right, bottom); 1703 invalidate(); 1704 } 1705 1706 /** 1707 * Gets the autolink mask of the text. See {@link 1708 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1709 * possible values. 1710 * 1711 * @attr ref android.R.styleable#TextView_autoLink 1712 */ 1713 public final int getAutoLinkMask() { 1714 return mAutoLinkMask; 1715 } 1716 1717 /** 1718 * Sets the text color, size, style, hint color, and highlight color 1719 * from the specified TextAppearance resource. 1720 */ 1721 public void setTextAppearance(Context context, int resid) { 1722 TypedArray appearance = 1723 context.obtainStyledAttributes(resid, 1724 com.android.internal.R.styleable.TextAppearance); 1725 1726 int color; 1727 ColorStateList colors; 1728 int ts; 1729 1730 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 1731 if (color != 0) { 1732 setHighlightColor(color); 1733 } 1734 1735 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1736 TextAppearance_textColor); 1737 if (colors != null) { 1738 setTextColor(colors); 1739 } 1740 1741 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 1742 TextAppearance_textSize, 0); 1743 if (ts != 0) { 1744 setRawTextSize(ts); 1745 } 1746 1747 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1748 TextAppearance_textColorHint); 1749 if (colors != null) { 1750 setHintTextColor(colors); 1751 } 1752 1753 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1754 TextAppearance_textColorLink); 1755 if (colors != null) { 1756 setLinkTextColor(colors); 1757 } 1758 1759 int typefaceIndex, styleIndex; 1760 1761 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 1762 TextAppearance_typeface, -1); 1763 styleIndex = appearance.getInt(com.android.internal.R.styleable. 1764 TextAppearance_textStyle, -1); 1765 1766 setTypefaceByIndex(typefaceIndex, styleIndex); 1767 1768 appearance.recycle(); 1769 } 1770 1771 /** 1772 * @return the size (in pixels) of the default text size in this TextView. 1773 */ 1774 public float getTextSize() { 1775 return mTextPaint.getTextSize(); 1776 } 1777 1778 /** 1779 * Set the default text size to the given value, interpreted as "scaled 1780 * pixel" units. This size is adjusted based on the current density and 1781 * user font size preference. 1782 * 1783 * @param size The scaled pixel size. 1784 * 1785 * @attr ref android.R.styleable#TextView_textSize 1786 */ 1787 @android.view.RemotableViewMethod 1788 public void setTextSize(float size) { 1789 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 1790 } 1791 1792 /** 1793 * Set the default text size to a given unit and value. See {@link 1794 * TypedValue} for the possible dimension units. 1795 * 1796 * @param unit The desired dimension unit. 1797 * @param size The desired size in the given units. 1798 * 1799 * @attr ref android.R.styleable#TextView_textSize 1800 */ 1801 public void setTextSize(int unit, float size) { 1802 Context c = getContext(); 1803 Resources r; 1804 1805 if (c == null) 1806 r = Resources.getSystem(); 1807 else 1808 r = c.getResources(); 1809 1810 setRawTextSize(TypedValue.applyDimension( 1811 unit, size, r.getDisplayMetrics())); 1812 } 1813 1814 private void setRawTextSize(float size) { 1815 if (size != mTextPaint.getTextSize()) { 1816 mTextPaint.setTextSize(size); 1817 1818 if (mLayout != null) { 1819 nullLayouts(); 1820 requestLayout(); 1821 invalidate(); 1822 } 1823 } 1824 } 1825 1826 /** 1827 * @return the extent by which text is currently being stretched 1828 * horizontally. This will usually be 1. 1829 */ 1830 public float getTextScaleX() { 1831 return mTextPaint.getTextScaleX(); 1832 } 1833 1834 /** 1835 * Sets the extent by which text should be stretched horizontally. 1836 * 1837 * @attr ref android.R.styleable#TextView_textScaleX 1838 */ 1839 @android.view.RemotableViewMethod 1840 public void setTextScaleX(float size) { 1841 if (size != mTextPaint.getTextScaleX()) { 1842 mUserSetTextScaleX = true; 1843 mTextPaint.setTextScaleX(size); 1844 1845 if (mLayout != null) { 1846 nullLayouts(); 1847 requestLayout(); 1848 invalidate(); 1849 } 1850 } 1851 } 1852 1853 /** 1854 * Sets the typeface and style in which the text should be displayed. 1855 * Note that not all Typeface families actually have bold and italic 1856 * variants, so you may need to use 1857 * {@link #setTypeface(Typeface, int)} to get the appearance 1858 * that you actually want. 1859 * 1860 * @attr ref android.R.styleable#TextView_typeface 1861 * @attr ref android.R.styleable#TextView_textStyle 1862 */ 1863 public void setTypeface(Typeface tf) { 1864 if (mTextPaint.getTypeface() != tf) { 1865 mTextPaint.setTypeface(tf); 1866 1867 if (mLayout != null) { 1868 nullLayouts(); 1869 requestLayout(); 1870 invalidate(); 1871 } 1872 } 1873 } 1874 1875 /** 1876 * @return the current typeface and style in which the text is being 1877 * displayed. 1878 */ 1879 public Typeface getTypeface() { 1880 return mTextPaint.getTypeface(); 1881 } 1882 1883 /** 1884 * Sets the text color for all the states (normal, selected, 1885 * focused) to be this color. 1886 * 1887 * @attr ref android.R.styleable#TextView_textColor 1888 */ 1889 @android.view.RemotableViewMethod 1890 public void setTextColor(int color) { 1891 mTextColor = ColorStateList.valueOf(color); 1892 updateTextColors(); 1893 } 1894 1895 /** 1896 * Sets the text color. 1897 * 1898 * @attr ref android.R.styleable#TextView_textColor 1899 */ 1900 public void setTextColor(ColorStateList colors) { 1901 if (colors == null) { 1902 throw new NullPointerException(); 1903 } 1904 1905 mTextColor = colors; 1906 updateTextColors(); 1907 } 1908 1909 /** 1910 * Return the set of text colors. 1911 * 1912 * @return Returns the set of text colors. 1913 */ 1914 public final ColorStateList getTextColors() { 1915 return mTextColor; 1916 } 1917 1918 /** 1919 * <p>Return the current color selected for normal text.</p> 1920 * 1921 * @return Returns the current text color. 1922 */ 1923 public final int getCurrentTextColor() { 1924 return mCurTextColor; 1925 } 1926 1927 /** 1928 * Sets the color used to display the selection highlight. 1929 * 1930 * @attr ref android.R.styleable#TextView_textColorHighlight 1931 */ 1932 @android.view.RemotableViewMethod 1933 public void setHighlightColor(int color) { 1934 if (mHighlightColor != color) { 1935 mHighlightColor = color; 1936 invalidate(); 1937 } 1938 } 1939 1940 /** 1941 * Gives the text a shadow of the specified radius and color, the specified 1942 * distance from its normal position. 1943 * 1944 * @attr ref android.R.styleable#TextView_shadowColor 1945 * @attr ref android.R.styleable#TextView_shadowDx 1946 * @attr ref android.R.styleable#TextView_shadowDy 1947 * @attr ref android.R.styleable#TextView_shadowRadius 1948 */ 1949 public void setShadowLayer(float radius, float dx, float dy, int color) { 1950 mTextPaint.setShadowLayer(radius, dx, dy, color); 1951 1952 mShadowRadius = radius; 1953 mShadowDx = dx; 1954 mShadowDy = dy; 1955 1956 invalidate(); 1957 } 1958 1959 /** 1960 * @return the base paint used for the text. Please use this only to 1961 * consult the Paint's properties and not to change them. 1962 */ 1963 public TextPaint getPaint() { 1964 return mTextPaint; 1965 } 1966 1967 /** 1968 * Sets the autolink mask of the text. See {@link 1969 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1970 * possible values. 1971 * 1972 * @attr ref android.R.styleable#TextView_autoLink 1973 */ 1974 @android.view.RemotableViewMethod 1975 public final void setAutoLinkMask(int mask) { 1976 mAutoLinkMask = mask; 1977 } 1978 1979 /** 1980 * Sets whether the movement method will automatically be set to 1981 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1982 * set to nonzero and links are detected in {@link #setText}. 1983 * The default is true. 1984 * 1985 * @attr ref android.R.styleable#TextView_linksClickable 1986 */ 1987 @android.view.RemotableViewMethod 1988 public final void setLinksClickable(boolean whether) { 1989 mLinksClickable = whether; 1990 } 1991 1992 /** 1993 * Returns whether the movement method will automatically be set to 1994 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1995 * set to nonzero and links are detected in {@link #setText}. 1996 * The default is true. 1997 * 1998 * @attr ref android.R.styleable#TextView_linksClickable 1999 */ 2000 public final boolean getLinksClickable() { 2001 return mLinksClickable; 2002 } 2003 2004 /** 2005 * Returns the list of URLSpans attached to the text 2006 * (by {@link Linkify} or otherwise) if any. You can call 2007 * {@link URLSpan#getURL} on them to find where they link to 2008 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 2009 * to find the region of the text they are attached to. 2010 */ 2011 public URLSpan[] getUrls() { 2012 if (mText instanceof Spanned) { 2013 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 2014 } else { 2015 return new URLSpan[0]; 2016 } 2017 } 2018 2019 /** 2020 * Sets the color of the hint text. 2021 * 2022 * @attr ref android.R.styleable#TextView_textColorHint 2023 */ 2024 @android.view.RemotableViewMethod 2025 public final void setHintTextColor(int color) { 2026 mHintTextColor = ColorStateList.valueOf(color); 2027 updateTextColors(); 2028 } 2029 2030 /** 2031 * Sets the color of the hint text. 2032 * 2033 * @attr ref android.R.styleable#TextView_textColorHint 2034 */ 2035 public final void setHintTextColor(ColorStateList colors) { 2036 mHintTextColor = colors; 2037 updateTextColors(); 2038 } 2039 2040 /** 2041 * <p>Return the color used to paint the hint text.</p> 2042 * 2043 * @return Returns the list of hint text colors. 2044 */ 2045 public final ColorStateList getHintTextColors() { 2046 return mHintTextColor; 2047 } 2048 2049 /** 2050 * <p>Return the current color selected to paint the hint text.</p> 2051 * 2052 * @return Returns the current hint text color. 2053 */ 2054 public final int getCurrentHintTextColor() { 2055 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 2056 } 2057 2058 /** 2059 * Sets the color of links in the text. 2060 * 2061 * @attr ref android.R.styleable#TextView_textColorLink 2062 */ 2063 @android.view.RemotableViewMethod 2064 public final void setLinkTextColor(int color) { 2065 mLinkTextColor = ColorStateList.valueOf(color); 2066 updateTextColors(); 2067 } 2068 2069 /** 2070 * Sets the color of links in the text. 2071 * 2072 * @attr ref android.R.styleable#TextView_textColorLink 2073 */ 2074 public final void setLinkTextColor(ColorStateList colors) { 2075 mLinkTextColor = colors; 2076 updateTextColors(); 2077 } 2078 2079 /** 2080 * <p>Returns the color used to paint links in the text.</p> 2081 * 2082 * @return Returns the list of link text colors. 2083 */ 2084 public final ColorStateList getLinkTextColors() { 2085 return mLinkTextColor; 2086 } 2087 2088 /** 2089 * Sets the horizontal alignment of the text and the 2090 * vertical gravity that will be used when there is extra space 2091 * in the TextView beyond what is required for the text itself. 2092 * 2093 * @see android.view.Gravity 2094 * @attr ref android.R.styleable#TextView_gravity 2095 */ 2096 public void setGravity(int gravity) { 2097 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 2098 gravity |= Gravity.START; 2099 } 2100 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2101 gravity |= Gravity.TOP; 2102 } 2103 2104 boolean newLayout = false; 2105 2106 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != 2107 (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK)) { 2108 newLayout = true; 2109 } 2110 2111 if (gravity != mGravity) { 2112 invalidate(); 2113 } 2114 2115 mGravity = gravity; 2116 2117 if (mLayout != null && newLayout) { 2118 // XXX this is heavy-handed because no actual content changes. 2119 int want = mLayout.getWidth(); 2120 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2121 2122 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2123 mRight - mLeft - getCompoundPaddingLeft() - 2124 getCompoundPaddingRight(), true); 2125 } 2126 } 2127 2128 /** 2129 * Returns the horizontal and vertical alignment of this TextView. 2130 * 2131 * @see android.view.Gravity 2132 * @attr ref android.R.styleable#TextView_gravity 2133 */ 2134 public int getGravity() { 2135 return mGravity; 2136 } 2137 2138 /** 2139 * @return the flags on the Paint being used to display the text. 2140 * @see Paint#getFlags 2141 */ 2142 public int getPaintFlags() { 2143 return mTextPaint.getFlags(); 2144 } 2145 2146 /** 2147 * Sets flags on the Paint being used to display the text and 2148 * reflows the text if they are different from the old flags. 2149 * @see Paint#setFlags 2150 */ 2151 @android.view.RemotableViewMethod 2152 public void setPaintFlags(int flags) { 2153 if (mTextPaint.getFlags() != flags) { 2154 mTextPaint.setFlags(flags); 2155 2156 if (mLayout != null) { 2157 nullLayouts(); 2158 requestLayout(); 2159 invalidate(); 2160 } 2161 } 2162 } 2163 2164 /** 2165 * Sets whether the text should be allowed to be wider than the 2166 * View is. If false, it will be wrapped to the width of the View. 2167 * 2168 * @attr ref android.R.styleable#TextView_scrollHorizontally 2169 */ 2170 public void setHorizontallyScrolling(boolean whether) { 2171 mHorizontallyScrolling = whether; 2172 2173 if (mLayout != null) { 2174 nullLayouts(); 2175 requestLayout(); 2176 invalidate(); 2177 } 2178 } 2179 2180 /** 2181 * Makes the TextView at least this many lines tall. 2182 * 2183 * Setting this value overrides any other (minimum) height setting. A single line TextView will 2184 * set this value to 1. 2185 * 2186 * @attr ref android.R.styleable#TextView_minLines 2187 */ 2188 @android.view.RemotableViewMethod 2189 public void setMinLines(int minlines) { 2190 mMinimum = minlines; 2191 mMinMode = LINES; 2192 2193 requestLayout(); 2194 invalidate(); 2195 } 2196 2197 /** 2198 * Makes the TextView at least this many pixels tall. 2199 * 2200 * Setting this value overrides any other (minimum) number of lines setting. 2201 * 2202 * @attr ref android.R.styleable#TextView_minHeight 2203 */ 2204 @android.view.RemotableViewMethod 2205 public void setMinHeight(int minHeight) { 2206 mMinimum = minHeight; 2207 mMinMode = PIXELS; 2208 2209 requestLayout(); 2210 invalidate(); 2211 } 2212 2213 /** 2214 * Makes the TextView at most this many lines tall. 2215 * 2216 * Setting this value overrides any other (maximum) height setting. 2217 * 2218 * @attr ref android.R.styleable#TextView_maxLines 2219 */ 2220 @android.view.RemotableViewMethod 2221 public void setMaxLines(int maxlines) { 2222 mMaximum = maxlines; 2223 mMaxMode = LINES; 2224 2225 requestLayout(); 2226 invalidate(); 2227 } 2228 2229 /** 2230 * Makes the TextView at most this many pixels tall. This option is mutually exclusive with the 2231 * {@link #setMaxLines(int)} method. 2232 * 2233 * Setting this value overrides any other (maximum) number of lines setting. 2234 * 2235 * @attr ref android.R.styleable#TextView_maxHeight 2236 */ 2237 @android.view.RemotableViewMethod 2238 public void setMaxHeight(int maxHeight) { 2239 mMaximum = maxHeight; 2240 mMaxMode = PIXELS; 2241 2242 requestLayout(); 2243 invalidate(); 2244 } 2245 2246 /** 2247 * Makes the TextView exactly this many lines tall. 2248 * 2249 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2250 * height setting. A single line TextView will set this value to 1. 2251 * 2252 * @attr ref android.R.styleable#TextView_lines 2253 */ 2254 @android.view.RemotableViewMethod 2255 public void setLines(int lines) { 2256 mMaximum = mMinimum = lines; 2257 mMaxMode = mMinMode = LINES; 2258 2259 requestLayout(); 2260 invalidate(); 2261 } 2262 2263 /** 2264 * Makes the TextView exactly this many pixels tall. 2265 * You could do the same thing by specifying this number in the 2266 * LayoutParams. 2267 * 2268 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2269 * height setting. 2270 * 2271 * @attr ref android.R.styleable#TextView_height 2272 */ 2273 @android.view.RemotableViewMethod 2274 public void setHeight(int pixels) { 2275 mMaximum = mMinimum = pixels; 2276 mMaxMode = mMinMode = PIXELS; 2277 2278 requestLayout(); 2279 invalidate(); 2280 } 2281 2282 /** 2283 * Makes the TextView at least this many ems wide 2284 * 2285 * @attr ref android.R.styleable#TextView_minEms 2286 */ 2287 @android.view.RemotableViewMethod 2288 public void setMinEms(int minems) { 2289 mMinWidth = minems; 2290 mMinWidthMode = EMS; 2291 2292 requestLayout(); 2293 invalidate(); 2294 } 2295 2296 /** 2297 * Makes the TextView at least this many pixels wide 2298 * 2299 * @attr ref android.R.styleable#TextView_minWidth 2300 */ 2301 @android.view.RemotableViewMethod 2302 public void setMinWidth(int minpixels) { 2303 mMinWidth = minpixels; 2304 mMinWidthMode = PIXELS; 2305 2306 requestLayout(); 2307 invalidate(); 2308 } 2309 2310 /** 2311 * Makes the TextView at most this many ems wide 2312 * 2313 * @attr ref android.R.styleable#TextView_maxEms 2314 */ 2315 @android.view.RemotableViewMethod 2316 public void setMaxEms(int maxems) { 2317 mMaxWidth = maxems; 2318 mMaxWidthMode = EMS; 2319 2320 requestLayout(); 2321 invalidate(); 2322 } 2323 2324 /** 2325 * Makes the TextView at most this many pixels wide 2326 * 2327 * @attr ref android.R.styleable#TextView_maxWidth 2328 */ 2329 @android.view.RemotableViewMethod 2330 public void setMaxWidth(int maxpixels) { 2331 mMaxWidth = maxpixels; 2332 mMaxWidthMode = PIXELS; 2333 2334 requestLayout(); 2335 invalidate(); 2336 } 2337 2338 /** 2339 * Makes the TextView exactly this many ems wide 2340 * 2341 * @attr ref android.R.styleable#TextView_ems 2342 */ 2343 @android.view.RemotableViewMethod 2344 public void setEms(int ems) { 2345 mMaxWidth = mMinWidth = ems; 2346 mMaxWidthMode = mMinWidthMode = EMS; 2347 2348 requestLayout(); 2349 invalidate(); 2350 } 2351 2352 /** 2353 * Makes the TextView exactly this many pixels wide. 2354 * You could do the same thing by specifying this number in the 2355 * LayoutParams. 2356 * 2357 * @attr ref android.R.styleable#TextView_width 2358 */ 2359 @android.view.RemotableViewMethod 2360 public void setWidth(int pixels) { 2361 mMaxWidth = mMinWidth = pixels; 2362 mMaxWidthMode = mMinWidthMode = PIXELS; 2363 2364 requestLayout(); 2365 invalidate(); 2366 } 2367 2368 2369 /** 2370 * Sets line spacing for this TextView. Each line will have its height 2371 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2372 * 2373 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2374 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2375 */ 2376 public void setLineSpacing(float add, float mult) { 2377 mSpacingMult = mult; 2378 mSpacingAdd = add; 2379 2380 if (mLayout != null) { 2381 nullLayouts(); 2382 requestLayout(); 2383 invalidate(); 2384 } 2385 } 2386 2387 /** 2388 * Convenience method: Append the specified text to the TextView's 2389 * display buffer, upgrading it to BufferType.EDITABLE if it was 2390 * not already editable. 2391 */ 2392 public final void append(CharSequence text) { 2393 append(text, 0, text.length()); 2394 } 2395 2396 /** 2397 * Convenience method: Append the specified text slice to the TextView's 2398 * display buffer, upgrading it to BufferType.EDITABLE if it was 2399 * not already editable. 2400 */ 2401 public void append(CharSequence text, int start, int end) { 2402 if (!(mText instanceof Editable)) { 2403 setText(mText, BufferType.EDITABLE); 2404 } 2405 2406 ((Editable) mText).append(text, start, end); 2407 } 2408 2409 private void updateTextColors() { 2410 boolean inval = false; 2411 int color = mTextColor.getColorForState(getDrawableState(), 0); 2412 if (color != mCurTextColor) { 2413 mCurTextColor = color; 2414 inval = true; 2415 } 2416 if (mLinkTextColor != null) { 2417 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2418 if (color != mTextPaint.linkColor) { 2419 mTextPaint.linkColor = color; 2420 inval = true; 2421 } 2422 } 2423 if (mHintTextColor != null) { 2424 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2425 if (color != mCurHintTextColor && mText.length() == 0) { 2426 mCurHintTextColor = color; 2427 inval = true; 2428 } 2429 } 2430 if (inval) { 2431 invalidate(); 2432 } 2433 } 2434 2435 @Override 2436 protected void drawableStateChanged() { 2437 super.drawableStateChanged(); 2438 if (mTextColor != null && mTextColor.isStateful() 2439 || (mHintTextColor != null && mHintTextColor.isStateful()) 2440 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2441 updateTextColors(); 2442 } 2443 2444 final Drawables dr = mDrawables; 2445 if (dr != null) { 2446 int[] state = getDrawableState(); 2447 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2448 dr.mDrawableTop.setState(state); 2449 } 2450 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2451 dr.mDrawableBottom.setState(state); 2452 } 2453 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2454 dr.mDrawableLeft.setState(state); 2455 } 2456 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2457 dr.mDrawableRight.setState(state); 2458 } 2459 } 2460 } 2461 2462 /** 2463 * User interface state that is stored by TextView for implementing 2464 * {@link View#onSaveInstanceState}. 2465 */ 2466 public static class SavedState extends BaseSavedState { 2467 int selStart; 2468 int selEnd; 2469 CharSequence text; 2470 boolean frozenWithFocus; 2471 CharSequence error; 2472 2473 SavedState(Parcelable superState) { 2474 super(superState); 2475 } 2476 2477 @Override 2478 public void writeToParcel(Parcel out, int flags) { 2479 super.writeToParcel(out, flags); 2480 out.writeInt(selStart); 2481 out.writeInt(selEnd); 2482 out.writeInt(frozenWithFocus ? 1 : 0); 2483 TextUtils.writeToParcel(text, out, flags); 2484 2485 if (error == null) { 2486 out.writeInt(0); 2487 } else { 2488 out.writeInt(1); 2489 TextUtils.writeToParcel(error, out, flags); 2490 } 2491 } 2492 2493 @Override 2494 public String toString() { 2495 String str = "TextView.SavedState{" 2496 + Integer.toHexString(System.identityHashCode(this)) 2497 + " start=" + selStart + " end=" + selEnd; 2498 if (text != null) { 2499 str += " text=" + text; 2500 } 2501 return str + "}"; 2502 } 2503 2504 @SuppressWarnings("hiding") 2505 public static final Parcelable.Creator<SavedState> CREATOR 2506 = new Parcelable.Creator<SavedState>() { 2507 public SavedState createFromParcel(Parcel in) { 2508 return new SavedState(in); 2509 } 2510 2511 public SavedState[] newArray(int size) { 2512 return new SavedState[size]; 2513 } 2514 }; 2515 2516 private SavedState(Parcel in) { 2517 super(in); 2518 selStart = in.readInt(); 2519 selEnd = in.readInt(); 2520 frozenWithFocus = (in.readInt() != 0); 2521 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2522 2523 if (in.readInt() != 0) { 2524 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2525 } 2526 } 2527 } 2528 2529 @Override 2530 public Parcelable onSaveInstanceState() { 2531 Parcelable superState = super.onSaveInstanceState(); 2532 2533 // Save state if we are forced to 2534 boolean save = mFreezesText; 2535 int start = 0; 2536 int end = 0; 2537 2538 if (mText != null) { 2539 start = getSelectionStart(); 2540 end = getSelectionEnd(); 2541 if (start >= 0 || end >= 0) { 2542 // Or save state if there is a selection 2543 save = true; 2544 } 2545 } 2546 2547 if (save) { 2548 SavedState ss = new SavedState(superState); 2549 // XXX Should also save the current scroll position! 2550 ss.selStart = start; 2551 ss.selEnd = end; 2552 2553 if (mText instanceof Spanned) { 2554 /* 2555 * Calling setText() strips off any ChangeWatchers; 2556 * strip them now to avoid leaking references. 2557 * But do it to a copy so that if there are any 2558 * further changes to the text of this view, it 2559 * won't get into an inconsistent state. 2560 */ 2561 2562 Spannable sp = new SpannableString(mText); 2563 2564 for (ChangeWatcher cw : 2565 sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2566 sp.removeSpan(cw); 2567 } 2568 2569 // hideControllers would do it, but it gets called after this method on rotation 2570 sp.removeSpan(mSuggestionRangeSpan); 2571 2572 ss.text = sp; 2573 } else { 2574 ss.text = mText.toString(); 2575 } 2576 2577 if (isFocused() && start >= 0 && end >= 0) { 2578 ss.frozenWithFocus = true; 2579 } 2580 2581 ss.error = mError; 2582 2583 return ss; 2584 } 2585 2586 return superState; 2587 } 2588 2589 @Override 2590 public void onRestoreInstanceState(Parcelable state) { 2591 if (!(state instanceof SavedState)) { 2592 super.onRestoreInstanceState(state); 2593 return; 2594 } 2595 2596 SavedState ss = (SavedState)state; 2597 super.onRestoreInstanceState(ss.getSuperState()); 2598 2599 // XXX restore buffer type too, as well as lots of other stuff 2600 if (ss.text != null) { 2601 setText(ss.text); 2602 } 2603 2604 if (ss.selStart >= 0 && ss.selEnd >= 0) { 2605 if (mText instanceof Spannable) { 2606 int len = mText.length(); 2607 2608 if (ss.selStart > len || ss.selEnd > len) { 2609 String restored = ""; 2610 2611 if (ss.text != null) { 2612 restored = "(restored) "; 2613 } 2614 2615 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 2616 "/" + ss.selEnd + " out of range for " + restored + 2617 "text " + mText); 2618 } else { 2619 Selection.setSelection((Spannable) mText, ss.selStart, 2620 ss.selEnd); 2621 2622 if (ss.frozenWithFocus) { 2623 mFrozenWithFocus = true; 2624 } 2625 } 2626 } 2627 } 2628 2629 if (ss.error != null) { 2630 final CharSequence error = ss.error; 2631 // Display the error later, after the first layout pass 2632 post(new Runnable() { 2633 public void run() { 2634 setError(error); 2635 } 2636 }); 2637 } 2638 } 2639 2640 /** 2641 * Control whether this text view saves its entire text contents when 2642 * freezing to an icicle, in addition to dynamic state such as cursor 2643 * position. By default this is false, not saving the text. Set to true 2644 * if the text in the text view is not being saved somewhere else in 2645 * persistent storage (such as in a content provider) so that if the 2646 * view is later thawed the user will not lose their data. 2647 * 2648 * @param freezesText Controls whether a frozen icicle should include the 2649 * entire text data: true to include it, false to not. 2650 * 2651 * @attr ref android.R.styleable#TextView_freezesText 2652 */ 2653 @android.view.RemotableViewMethod 2654 public void setFreezesText(boolean freezesText) { 2655 mFreezesText = freezesText; 2656 } 2657 2658 /** 2659 * Return whether this text view is including its entire text contents 2660 * in frozen icicles. 2661 * 2662 * @return Returns true if text is included, false if it isn't. 2663 * 2664 * @see #setFreezesText 2665 */ 2666 public boolean getFreezesText() { 2667 return mFreezesText; 2668 } 2669 2670 /////////////////////////////////////////////////////////////////////////// 2671 2672 /** 2673 * Sets the Factory used to create new Editables. 2674 */ 2675 public final void setEditableFactory(Editable.Factory factory) { 2676 mEditableFactory = factory; 2677 setText(mText); 2678 } 2679 2680 /** 2681 * Sets the Factory used to create new Spannables. 2682 */ 2683 public final void setSpannableFactory(Spannable.Factory factory) { 2684 mSpannableFactory = factory; 2685 setText(mText); 2686 } 2687 2688 /** 2689 * Sets the string value of the TextView. TextView <em>does not</em> accept 2690 * HTML-like formatting, which you can do with text strings in XML resource files. 2691 * To style your strings, attach android.text.style.* objects to a 2692 * {@link android.text.SpannableString SpannableString}, or see the 2693 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 2694 * Available Resource Types</a> documentation for an example of setting 2695 * formatted text in the XML resource file. 2696 * 2697 * @attr ref android.R.styleable#TextView_text 2698 */ 2699 @android.view.RemotableViewMethod 2700 public final void setText(CharSequence text) { 2701 setText(text, mBufferType); 2702 } 2703 2704 /** 2705 * Like {@link #setText(CharSequence)}, 2706 * except that the cursor position (if any) is retained in the new text. 2707 * 2708 * @param text The new text to place in the text view. 2709 * 2710 * @see #setText(CharSequence) 2711 */ 2712 @android.view.RemotableViewMethod 2713 public final void setTextKeepState(CharSequence text) { 2714 setTextKeepState(text, mBufferType); 2715 } 2716 2717 /** 2718 * Sets the text that this TextView is to display (see 2719 * {@link #setText(CharSequence)}) and also sets whether it is stored 2720 * in a styleable/spannable buffer and whether it is editable. 2721 * 2722 * @attr ref android.R.styleable#TextView_text 2723 * @attr ref android.R.styleable#TextView_bufferType 2724 */ 2725 public void setText(CharSequence text, BufferType type) { 2726 setText(text, type, true, 0); 2727 2728 if (mCharWrapper != null) { 2729 mCharWrapper.mChars = null; 2730 } 2731 } 2732 2733 private void setText(CharSequence text, BufferType type, 2734 boolean notifyBefore, int oldlen) { 2735 if (text == null) { 2736 text = ""; 2737 } 2738 2739 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 2740 2741 if (text instanceof Spanned && 2742 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 2743 setHorizontalFadingEdgeEnabled(true); 2744 setEllipsize(TextUtils.TruncateAt.MARQUEE); 2745 } 2746 2747 int n = mFilters.length; 2748 for (int i = 0; i < n; i++) { 2749 CharSequence out = mFilters[i].filter(text, 0, text.length(), 2750 EMPTY_SPANNED, 0, 0); 2751 if (out != null) { 2752 text = out; 2753 } 2754 } 2755 2756 if (notifyBefore) { 2757 if (mText != null) { 2758 oldlen = mText.length(); 2759 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 2760 } else { 2761 sendBeforeTextChanged("", 0, 0, text.length()); 2762 } 2763 } 2764 2765 boolean needEditableForNotification = false; 2766 2767 if (mListeners != null && mListeners.size() != 0) { 2768 needEditableForNotification = true; 2769 } 2770 2771 if (type == BufferType.EDITABLE || mInput != null || 2772 needEditableForNotification) { 2773 Editable t = mEditableFactory.newEditable(text); 2774 text = t; 2775 setFilters(t, mFilters); 2776 InputMethodManager imm = InputMethodManager.peekInstance(); 2777 if (imm != null) imm.restartInput(this); 2778 } else if (type == BufferType.SPANNABLE || mMovement != null) { 2779 text = mSpannableFactory.newSpannable(text); 2780 } else if (!(text instanceof CharWrapper)) { 2781 text = TextUtils.stringOrSpannedString(text); 2782 } 2783 2784 if (mAutoLinkMask != 0) { 2785 Spannable s2; 2786 2787 if (type == BufferType.EDITABLE || text instanceof Spannable) { 2788 s2 = (Spannable) text; 2789 } else { 2790 s2 = mSpannableFactory.newSpannable(text); 2791 } 2792 2793 if (Linkify.addLinks(s2, mAutoLinkMask)) { 2794 text = s2; 2795 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 2796 2797 /* 2798 * We must go ahead and set the text before changing the 2799 * movement method, because setMovementMethod() may call 2800 * setText() again to try to upgrade the buffer type. 2801 */ 2802 mText = text; 2803 2804 // Do not change the movement method for text that support text selection as it 2805 // would prevent an arbitrary cursor displacement. 2806 final boolean hasTextSelection = this instanceof EditText || mTextIsSelectable; 2807 if (mLinksClickable && !hasTextSelection) { 2808 setMovementMethod(LinkMovementMethod.getInstance()); 2809 } 2810 } 2811 } 2812 2813 mBufferType = type; 2814 mText = text; 2815 2816 if (mTransformation == null) 2817 mTransformed = text; 2818 else 2819 mTransformed = mTransformation.getTransformation(text, this); 2820 2821 final int textLength = text.length(); 2822 2823 if (text instanceof Spannable) { 2824 Spannable sp = (Spannable) text; 2825 2826 // Remove any ChangeWatchers that might have come 2827 // from other TextViews. 2828 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 2829 final int count = watchers.length; 2830 for (int i = 0; i < count; i++) 2831 sp.removeSpan(watchers[i]); 2832 2833 if (mChangeWatcher == null) 2834 mChangeWatcher = new ChangeWatcher(); 2835 2836 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 2837 (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 2838 2839 if (mInput != null) { 2840 sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2841 } 2842 2843 if (mTransformation != null) { 2844 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2845 2846 } 2847 2848 if (mMovement != null) { 2849 mMovement.initialize(this, (Spannable) text); 2850 2851 /* 2852 * Initializing the movement method will have set the 2853 * selection, so reset mSelectionMoved to keep that from 2854 * interfering with the normal on-focus selection-setting. 2855 */ 2856 mSelectionMoved = false; 2857 } 2858 } 2859 2860 if (mLayout != null) { 2861 checkForRelayout(); 2862 } 2863 2864 sendOnTextChanged(text, 0, oldlen, textLength); 2865 onTextChanged(text, 0, oldlen, textLength); 2866 2867 if (needEditableForNotification) { 2868 sendAfterTextChanged((Editable) text); 2869 } 2870 2871 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 2872 prepareCursorControllers(); 2873 } 2874 2875 /** 2876 * Sets the TextView to display the specified slice of the specified 2877 * char array. You must promise that you will not change the contents 2878 * of the array except for right before another call to setText(), 2879 * since the TextView has no way to know that the text 2880 * has changed and that it needs to invalidate and re-layout. 2881 */ 2882 public final void setText(char[] text, int start, int len) { 2883 int oldlen = 0; 2884 2885 if (start < 0 || len < 0 || start + len > text.length) { 2886 throw new IndexOutOfBoundsException(start + ", " + len); 2887 } 2888 2889 /* 2890 * We must do the before-notification here ourselves because if 2891 * the old text is a CharWrapper we destroy it before calling 2892 * into the normal path. 2893 */ 2894 if (mText != null) { 2895 oldlen = mText.length(); 2896 sendBeforeTextChanged(mText, 0, oldlen, len); 2897 } else { 2898 sendBeforeTextChanged("", 0, 0, len); 2899 } 2900 2901 if (mCharWrapper == null) { 2902 mCharWrapper = new CharWrapper(text, start, len); 2903 } else { 2904 mCharWrapper.set(text, start, len); 2905 } 2906 2907 setText(mCharWrapper, mBufferType, false, oldlen); 2908 } 2909 2910 private static class CharWrapper implements CharSequence, GetChars, GraphicsOperations { 2911 private char[] mChars; 2912 private int mStart, mLength; 2913 2914 public CharWrapper(char[] chars, int start, int len) { 2915 mChars = chars; 2916 mStart = start; 2917 mLength = len; 2918 } 2919 2920 /* package */ void set(char[] chars, int start, int len) { 2921 mChars = chars; 2922 mStart = start; 2923 mLength = len; 2924 } 2925 2926 public int length() { 2927 return mLength; 2928 } 2929 2930 public char charAt(int off) { 2931 return mChars[off + mStart]; 2932 } 2933 2934 @Override 2935 public String toString() { 2936 return new String(mChars, mStart, mLength); 2937 } 2938 2939 public CharSequence subSequence(int start, int end) { 2940 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2941 throw new IndexOutOfBoundsException(start + ", " + end); 2942 } 2943 2944 return new String(mChars, start + mStart, end - start); 2945 } 2946 2947 public void getChars(int start, int end, char[] buf, int off) { 2948 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2949 throw new IndexOutOfBoundsException(start + ", " + end); 2950 } 2951 2952 System.arraycopy(mChars, start + mStart, buf, off, end - start); 2953 } 2954 2955 public void drawText(Canvas c, int start, int end, 2956 float x, float y, Paint p) { 2957 c.drawText(mChars, start + mStart, end - start, x, y, p); 2958 } 2959 2960 public void drawTextRun(Canvas c, int start, int end, 2961 int contextStart, int contextEnd, float x, float y, int flags, Paint p) { 2962 int count = end - start; 2963 int contextCount = contextEnd - contextStart; 2964 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 2965 contextCount, x, y, flags, p); 2966 } 2967 2968 public float measureText(int start, int end, Paint p) { 2969 return p.measureText(mChars, start + mStart, end - start); 2970 } 2971 2972 public int getTextWidths(int start, int end, float[] widths, Paint p) { 2973 return p.getTextWidths(mChars, start + mStart, end - start, widths); 2974 } 2975 2976 public float getTextRunAdvances(int start, int end, int contextStart, 2977 int contextEnd, int flags, float[] advances, int advancesIndex, 2978 Paint p) { 2979 int count = end - start; 2980 int contextCount = contextEnd - contextStart; 2981 return p.getTextRunAdvances(mChars, start + mStart, count, 2982 contextStart + mStart, contextCount, flags, advances, 2983 advancesIndex); 2984 } 2985 2986 public float getTextRunAdvances(int start, int end, int contextStart, 2987 int contextEnd, int flags, float[] advances, int advancesIndex, 2988 Paint p, int reserved) { 2989 int count = end - start; 2990 int contextCount = contextEnd - contextStart; 2991 return p.getTextRunAdvances(mChars, start + mStart, count, 2992 contextStart + mStart, contextCount, flags, advances, 2993 advancesIndex, reserved); 2994 } 2995 2996 public int getTextRunCursor(int contextStart, int contextEnd, int flags, 2997 int offset, int cursorOpt, Paint p) { 2998 int contextCount = contextEnd - contextStart; 2999 return p.getTextRunCursor(mChars, contextStart + mStart, 3000 contextCount, flags, offset + mStart, cursorOpt); 3001 } 3002 } 3003 3004 /** 3005 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 3006 * except that the cursor position (if any) is retained in the new text. 3007 * 3008 * @see #setText(CharSequence, android.widget.TextView.BufferType) 3009 */ 3010 public final void setTextKeepState(CharSequence text, BufferType type) { 3011 int start = getSelectionStart(); 3012 int end = getSelectionEnd(); 3013 int len = text.length(); 3014 3015 setText(text, type); 3016 3017 if (start >= 0 || end >= 0) { 3018 if (mText instanceof Spannable) { 3019 Selection.setSelection((Spannable) mText, 3020 Math.max(0, Math.min(start, len)), 3021 Math.max(0, Math.min(end, len))); 3022 } 3023 } 3024 } 3025 3026 @android.view.RemotableViewMethod 3027 public final void setText(int resid) { 3028 setText(getContext().getResources().getText(resid)); 3029 } 3030 3031 public final void setText(int resid, BufferType type) { 3032 setText(getContext().getResources().getText(resid), type); 3033 } 3034 3035 /** 3036 * Sets the text to be displayed when the text of the TextView is empty. 3037 * Null means to use the normal empty text. The hint does not currently 3038 * participate in determining the size of the view. 3039 * 3040 * @attr ref android.R.styleable#TextView_hint 3041 */ 3042 @android.view.RemotableViewMethod 3043 public final void setHint(CharSequence hint) { 3044 mHint = TextUtils.stringOrSpannedString(hint); 3045 3046 if (mLayout != null) { 3047 checkForRelayout(); 3048 } 3049 3050 if (mText.length() == 0) { 3051 invalidate(); 3052 } 3053 } 3054 3055 /** 3056 * Sets the text to be displayed when the text of the TextView is empty, 3057 * from a resource. 3058 * 3059 * @attr ref android.R.styleable#TextView_hint 3060 */ 3061 @android.view.RemotableViewMethod 3062 public final void setHint(int resid) { 3063 setHint(getContext().getResources().getText(resid)); 3064 } 3065 3066 /** 3067 * Returns the hint that is displayed when the text of the TextView 3068 * is empty. 3069 * 3070 * @attr ref android.R.styleable#TextView_hint 3071 */ 3072 @ViewDebug.CapturedViewProperty 3073 public CharSequence getHint() { 3074 return mHint; 3075 } 3076 3077 private boolean isMultilineInputType(int type) { 3078 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 3079 (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 3080 } 3081 3082 /** 3083 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 3084 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 3085 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 3086 * then a soft keyboard will not be displayed for this text view. 3087 * 3088 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 3089 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 3090 * type. 3091 * 3092 * @see #getInputType() 3093 * @see #setRawInputType(int) 3094 * @see android.text.InputType 3095 * @attr ref android.R.styleable#TextView_inputType 3096 */ 3097 public void setInputType(int type) { 3098 final boolean wasPassword = isPasswordInputType(mInputType); 3099 final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType); 3100 setInputType(type, false); 3101 final boolean isPassword = isPasswordInputType(type); 3102 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 3103 boolean forceUpdate = false; 3104 if (isPassword) { 3105 setTransformationMethod(PasswordTransformationMethod.getInstance()); 3106 setTypefaceByIndex(MONOSPACE, 0); 3107 } else if (isVisiblePassword) { 3108 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3109 forceUpdate = true; 3110 } 3111 setTypefaceByIndex(MONOSPACE, 0); 3112 } else if (wasPassword || wasVisiblePassword) { 3113 // not in password mode, clean up typeface and transformation 3114 setTypefaceByIndex(-1, -1); 3115 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3116 forceUpdate = true; 3117 } 3118 } 3119 3120 boolean singleLine = !isMultilineInputType(type); 3121 3122 // We need to update the single line mode if it has changed or we 3123 // were previously in password mode. 3124 if (mSingleLine != singleLine || forceUpdate) { 3125 // Change single line mode, but only change the transformation if 3126 // we are not in password mode. 3127 applySingleLine(singleLine, !isPassword, true); 3128 } 3129 3130 InputMethodManager imm = InputMethodManager.peekInstance(); 3131 if (imm != null) imm.restartInput(this); 3132 } 3133 3134 /** 3135 * It would be better to rely on the input type for everything. A password inputType should have 3136 * a password transformation. We should hence use isPasswordInputType instead of this method. 3137 * 3138 * We should: 3139 * - Call setInputType in setKeyListener instead of changing the input type directly (which 3140 * would install the correct transformation). 3141 * - Refuse the installation of a non-password transformation in setTransformation if the input 3142 * type is password. 3143 * 3144 * However, this is like this for legacy reasons and we cannot break existing apps. This method 3145 * is useful since it matches what the user can see (obfuscated text or not). 3146 * 3147 * @return true if the current transformation method is of the password type. 3148 */ 3149 private boolean hasPasswordTransformationMethod() { 3150 return mTransformation instanceof PasswordTransformationMethod; 3151 } 3152 3153 private boolean isPasswordInputType(int inputType) { 3154 final int variation = 3155 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3156 return variation 3157 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 3158 || variation 3159 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 3160 || variation 3161 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 3162 } 3163 3164 private boolean isVisiblePasswordInputType(int inputType) { 3165 final int variation = 3166 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3167 return variation 3168 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 3169 } 3170 3171 /** 3172 * Directly change the content type integer of the text view, without 3173 * modifying any other state. 3174 * @see #setInputType(int) 3175 * @see android.text.InputType 3176 * @attr ref android.R.styleable#TextView_inputType 3177 */ 3178 public void setRawInputType(int type) { 3179 mInputType = type; 3180 } 3181 3182 private void setInputType(int type, boolean direct) { 3183 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 3184 KeyListener input; 3185 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 3186 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 3187 TextKeyListener.Capitalize cap; 3188 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 3189 cap = TextKeyListener.Capitalize.CHARACTERS; 3190 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 3191 cap = TextKeyListener.Capitalize.WORDS; 3192 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 3193 cap = TextKeyListener.Capitalize.SENTENCES; 3194 } else { 3195 cap = TextKeyListener.Capitalize.NONE; 3196 } 3197 input = TextKeyListener.getInstance(autotext, cap); 3198 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 3199 input = DigitsKeyListener.getInstance( 3200 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 3201 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 3202 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 3203 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 3204 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 3205 input = DateKeyListener.getInstance(); 3206 break; 3207 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 3208 input = TimeKeyListener.getInstance(); 3209 break; 3210 default: 3211 input = DateTimeKeyListener.getInstance(); 3212 break; 3213 } 3214 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 3215 input = DialerKeyListener.getInstance(); 3216 } else { 3217 input = TextKeyListener.getInstance(); 3218 } 3219 setRawInputType(type); 3220 if (direct) mInput = input; 3221 else { 3222 setKeyListenerOnly(input); 3223 } 3224 } 3225 3226 /** 3227 * Get the type of the content. 3228 * 3229 * @see #setInputType(int) 3230 * @see android.text.InputType 3231 */ 3232 public int getInputType() { 3233 return mInputType; 3234 } 3235 3236 /** 3237 * Change the editor type integer associated with the text view, which 3238 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3239 * has focus. 3240 * @see #getImeOptions 3241 * @see android.view.inputmethod.EditorInfo 3242 * @attr ref android.R.styleable#TextView_imeOptions 3243 */ 3244 public void setImeOptions(int imeOptions) { 3245 if (mInputContentType == null) { 3246 mInputContentType = new InputContentType(); 3247 } 3248 mInputContentType.imeOptions = imeOptions; 3249 } 3250 3251 /** 3252 * Get the type of the IME editor. 3253 * 3254 * @see #setImeOptions(int) 3255 * @see android.view.inputmethod.EditorInfo 3256 */ 3257 public int getImeOptions() { 3258 return mInputContentType != null 3259 ? mInputContentType.imeOptions : EditorInfo.IME_NULL; 3260 } 3261 3262 /** 3263 * Change the custom IME action associated with the text view, which 3264 * will be reported to an IME with {@link EditorInfo#actionLabel} 3265 * and {@link EditorInfo#actionId} when it has focus. 3266 * @see #getImeActionLabel 3267 * @see #getImeActionId 3268 * @see android.view.inputmethod.EditorInfo 3269 * @attr ref android.R.styleable#TextView_imeActionLabel 3270 * @attr ref android.R.styleable#TextView_imeActionId 3271 */ 3272 public void setImeActionLabel(CharSequence label, int actionId) { 3273 if (mInputContentType == null) { 3274 mInputContentType = new InputContentType(); 3275 } 3276 mInputContentType.imeActionLabel = label; 3277 mInputContentType.imeActionId = actionId; 3278 } 3279 3280 /** 3281 * Get the IME action label previous set with {@link #setImeActionLabel}. 3282 * 3283 * @see #setImeActionLabel 3284 * @see android.view.inputmethod.EditorInfo 3285 */ 3286 public CharSequence getImeActionLabel() { 3287 return mInputContentType != null 3288 ? mInputContentType.imeActionLabel : null; 3289 } 3290 3291 /** 3292 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3293 * 3294 * @see #setImeActionLabel 3295 * @see android.view.inputmethod.EditorInfo 3296 */ 3297 public int getImeActionId() { 3298 return mInputContentType != null 3299 ? mInputContentType.imeActionId : 0; 3300 } 3301 3302 /** 3303 * Set a special listener to be called when an action is performed 3304 * on the text view. This will be called when the enter key is pressed, 3305 * or when an action supplied to the IME is selected by the user. Setting 3306 * this means that the normal hard key event will not insert a newline 3307 * into the text view, even if it is multi-line; holding down the ALT 3308 * modifier will, however, allow the user to insert a newline character. 3309 */ 3310 public void setOnEditorActionListener(OnEditorActionListener l) { 3311 if (mInputContentType == null) { 3312 mInputContentType = new InputContentType(); 3313 } 3314 mInputContentType.onEditorActionListener = l; 3315 } 3316 3317 /** 3318 * Called when an attached input method calls 3319 * {@link InputConnection#performEditorAction(int) 3320 * InputConnection.performEditorAction()} 3321 * for this text view. The default implementation will call your action 3322 * listener supplied to {@link #setOnEditorActionListener}, or perform 3323 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3324 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 3325 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 3326 * EditorInfo.IME_ACTION_DONE}. 3327 * 3328 * <p>For backwards compatibility, if no IME options have been set and the 3329 * text view would not normally advance focus on enter, then 3330 * the NEXT and DONE actions received here will be turned into an enter 3331 * key down/up pair to go through the normal key handling. 3332 * 3333 * @param actionCode The code of the action being performed. 3334 * 3335 * @see #setOnEditorActionListener 3336 */ 3337 public void onEditorAction(int actionCode) { 3338 final InputContentType ict = mInputContentType; 3339 if (ict != null) { 3340 if (ict.onEditorActionListener != null) { 3341 if (ict.onEditorActionListener.onEditorAction(this, 3342 actionCode, null)) { 3343 return; 3344 } 3345 } 3346 3347 // This is the handling for some default action. 3348 // Note that for backwards compatibility we don't do this 3349 // default handling if explicit ime options have not been given, 3350 // instead turning this into the normal enter key codes that an 3351 // app may be expecting. 3352 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3353 View v = focusSearch(FOCUS_DOWN); 3354 if (v != null) { 3355 if (!v.requestFocus(FOCUS_DOWN)) { 3356 throw new IllegalStateException("focus search returned a view " + 3357 "that wasn't able to take focus!"); 3358 } 3359 } 3360 return; 3361 3362 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 3363 View v = focusSearch(FOCUS_UP); 3364 if (v != null) { 3365 if (!v.requestFocus(FOCUS_UP)) { 3366 throw new IllegalStateException("focus search returned a view " + 3367 "that wasn't able to take focus!"); 3368 } 3369 } 3370 return; 3371 3372 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3373 InputMethodManager imm = InputMethodManager.peekInstance(); 3374 if (imm != null && imm.isActive(this)) { 3375 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3376 } 3377 return; 3378 } 3379 } 3380 3381 Handler h = getHandler(); 3382 if (h != null) { 3383 long eventTime = SystemClock.uptimeMillis(); 3384 h.sendMessage(h.obtainMessage(ViewAncestor.DISPATCH_KEY_FROM_IME, 3385 new KeyEvent(eventTime, eventTime, 3386 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 3387 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3388 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3389 | KeyEvent.FLAG_EDITOR_ACTION))); 3390 h.sendMessage(h.obtainMessage(ViewAncestor.DISPATCH_KEY_FROM_IME, 3391 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3392 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 3393 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3394 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3395 | KeyEvent.FLAG_EDITOR_ACTION))); 3396 } 3397 } 3398 3399 /** 3400 * Set the private content type of the text, which is the 3401 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3402 * field that will be filled in when creating an input connection. 3403 * 3404 * @see #getPrivateImeOptions() 3405 * @see EditorInfo#privateImeOptions 3406 * @attr ref android.R.styleable#TextView_privateImeOptions 3407 */ 3408 public void setPrivateImeOptions(String type) { 3409 if (mInputContentType == null) mInputContentType = new InputContentType(); 3410 mInputContentType.privateImeOptions = type; 3411 } 3412 3413 /** 3414 * Get the private type of the content. 3415 * 3416 * @see #setPrivateImeOptions(String) 3417 * @see EditorInfo#privateImeOptions 3418 */ 3419 public String getPrivateImeOptions() { 3420 return mInputContentType != null 3421 ? mInputContentType.privateImeOptions : null; 3422 } 3423 3424 /** 3425 * Set the extra input data of the text, which is the 3426 * {@link EditorInfo#extras TextBoxAttribute.extras} 3427 * Bundle that will be filled in when creating an input connection. The 3428 * given integer is the resource ID of an XML resource holding an 3429 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3430 * 3431 * @see #getInputExtras(boolean) 3432 * @see EditorInfo#extras 3433 * @attr ref android.R.styleable#TextView_editorExtras 3434 */ 3435 public void setInputExtras(int xmlResId) 3436 throws XmlPullParserException, IOException { 3437 XmlResourceParser parser = getResources().getXml(xmlResId); 3438 if (mInputContentType == null) mInputContentType = new InputContentType(); 3439 mInputContentType.extras = new Bundle(); 3440 getResources().parseBundleExtras(parser, mInputContentType.extras); 3441 } 3442 3443 /** 3444 * Retrieve the input extras currently associated with the text view, which 3445 * can be viewed as well as modified. 3446 * 3447 * @param create If true, the extras will be created if they don't already 3448 * exist. Otherwise, null will be returned if none have been created. 3449 * @see #setInputExtras(int) 3450 * @see EditorInfo#extras 3451 * @attr ref android.R.styleable#TextView_editorExtras 3452 */ 3453 public Bundle getInputExtras(boolean create) { 3454 if (mInputContentType == null) { 3455 if (!create) return null; 3456 mInputContentType = new InputContentType(); 3457 } 3458 if (mInputContentType.extras == null) { 3459 if (!create) return null; 3460 mInputContentType.extras = new Bundle(); 3461 } 3462 return mInputContentType.extras; 3463 } 3464 3465 /** 3466 * Returns the error message that was set to be displayed with 3467 * {@link #setError}, or <code>null</code> if no error was set 3468 * or if it the error was cleared by the widget after user input. 3469 */ 3470 public CharSequence getError() { 3471 return mError; 3472 } 3473 3474 /** 3475 * Sets the right-hand compound drawable of the TextView to the "error" 3476 * icon and sets an error message that will be displayed in a popup when 3477 * the TextView has focus. The icon and error message will be reset to 3478 * null when any key events cause changes to the TextView's text. If the 3479 * <code>error</code> is <code>null</code>, the error message and icon 3480 * will be cleared. 3481 */ 3482 @android.view.RemotableViewMethod 3483 public void setError(CharSequence error) { 3484 if (error == null) { 3485 setError(null, null); 3486 } else { 3487 Drawable dr = getContext().getResources(). 3488 getDrawable(com.android.internal.R.drawable.indicator_input_error); 3489 3490 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3491 setError(error, dr); 3492 } 3493 } 3494 3495 /** 3496 * Sets the right-hand compound drawable of the TextView to the specified 3497 * icon and sets an error message that will be displayed in a popup when 3498 * the TextView has focus. The icon and error message will be reset to 3499 * null when any key events cause changes to the TextView's text. The 3500 * drawable must already have had {@link Drawable#setBounds} set on it. 3501 * If the <code>error</code> is <code>null</code>, the error message will 3502 * be cleared (and you should provide a <code>null</code> icon as well). 3503 */ 3504 public void setError(CharSequence error, Drawable icon) { 3505 error = TextUtils.stringOrSpannedString(error); 3506 3507 mError = error; 3508 mErrorWasChanged = true; 3509 final Drawables dr = mDrawables; 3510 if (dr != null) { 3511 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, icon, dr.mDrawableBottom); 3512 } else { 3513 setCompoundDrawables(null, null, icon, null); 3514 } 3515 3516 if (error == null) { 3517 if (mPopup != null) { 3518 if (mPopup.isShowing()) { 3519 mPopup.dismiss(); 3520 } 3521 3522 mPopup = null; 3523 } 3524 } else { 3525 if (isFocused()) { 3526 showError(); 3527 } 3528 } 3529 } 3530 3531 private void showError() { 3532 if (getWindowToken() == null) { 3533 mShowErrorAfterAttach = true; 3534 return; 3535 } 3536 3537 if (mPopup == null) { 3538 LayoutInflater inflater = LayoutInflater.from(getContext()); 3539 final TextView err = (TextView) inflater.inflate( 3540 com.android.internal.R.layout.textview_hint, null); 3541 3542 final float scale = getResources().getDisplayMetrics().density; 3543 mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), (int) (50 * scale + 0.5f)); 3544 mPopup.setFocusable(false); 3545 // The user is entering text, so the input method is needed. We 3546 // don't want the popup to be displayed on top of it. 3547 mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 3548 } 3549 3550 TextView tv = (TextView) mPopup.getContentView(); 3551 chooseSize(mPopup, mError, tv); 3552 tv.setText(mError); 3553 3554 mPopup.showAsDropDown(this, getErrorX(), getErrorY()); 3555 mPopup.fixDirection(mPopup.isAboveAnchor()); 3556 } 3557 3558 private static class ErrorPopup extends PopupWindow { 3559 private boolean mAbove = false; 3560 private final TextView mView; 3561 private int mPopupInlineErrorBackgroundId = 0; 3562 private int mPopupInlineErrorAboveBackgroundId = 0; 3563 3564 ErrorPopup(TextView v, int width, int height) { 3565 super(v, width, height); 3566 mView = v; 3567 // Make sure the TextView has a background set as it will be used the first time it is 3568 // shown and positionned. Initialized with below background, which should have 3569 // dimensions identical to the above version for this to work (and is more likely). 3570 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3571 com.android.internal.R.styleable.Theme_errorMessageBackground); 3572 mView.setBackgroundResource(mPopupInlineErrorBackgroundId); 3573 } 3574 3575 void fixDirection(boolean above) { 3576 mAbove = above; 3577 3578 if (above) { 3579 mPopupInlineErrorAboveBackgroundId = 3580 getResourceId(mPopupInlineErrorAboveBackgroundId, 3581 com.android.internal.R.styleable.Theme_errorMessageAboveBackground); 3582 } else { 3583 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3584 com.android.internal.R.styleable.Theme_errorMessageBackground); 3585 } 3586 3587 mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId : 3588 mPopupInlineErrorBackgroundId); 3589 } 3590 3591 private int getResourceId(int currentId, int index) { 3592 if (currentId == 0) { 3593 TypedArray styledAttributes = mView.getContext().obtainStyledAttributes( 3594 R.styleable.Theme); 3595 currentId = styledAttributes.getResourceId(index, 0); 3596 styledAttributes.recycle(); 3597 } 3598 return currentId; 3599 } 3600 3601 @Override 3602 public void update(int x, int y, int w, int h, boolean force) { 3603 super.update(x, y, w, h, force); 3604 3605 boolean above = isAboveAnchor(); 3606 if (above != mAbove) { 3607 fixDirection(above); 3608 } 3609 } 3610 } 3611 3612 /** 3613 * Returns the Y offset to make the pointy top of the error point 3614 * at the middle of the error icon. 3615 */ 3616 private int getErrorX() { 3617 /* 3618 * The "25" is the distance between the point and the right edge 3619 * of the background 3620 */ 3621 final float scale = getResources().getDisplayMetrics().density; 3622 3623 final Drawables dr = mDrawables; 3624 return getWidth() - mPopup.getWidth() - getPaddingRight() - 3625 (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 3626 } 3627 3628 /** 3629 * Returns the Y offset to make the pointy top of the error point 3630 * at the bottom of the error icon. 3631 */ 3632 private int getErrorY() { 3633 /* 3634 * Compound, not extended, because the icon is not clipped 3635 * if the text height is smaller. 3636 */ 3637 final int compoundPaddingTop = getCompoundPaddingTop(); 3638 int vspace = mBottom - mTop - getCompoundPaddingBottom() - compoundPaddingTop; 3639 3640 final Drawables dr = mDrawables; 3641 int icontop = compoundPaddingTop + 3642 (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 3643 3644 /* 3645 * The "2" is the distance between the point and the top edge 3646 * of the background. 3647 */ 3648 final float scale = getResources().getDisplayMetrics().density; 3649 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) - getHeight() - 3650 (int) (2 * scale + 0.5f); 3651 } 3652 3653 private void hideError() { 3654 if (mPopup != null) { 3655 if (mPopup.isShowing()) { 3656 mPopup.dismiss(); 3657 } 3658 } 3659 3660 mShowErrorAfterAttach = false; 3661 } 3662 3663 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 3664 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 3665 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 3666 3667 /* 3668 * Figure out how big the text would be if we laid it out to the 3669 * full width of this view minus the border. 3670 */ 3671 int cap = getWidth() - wid; 3672 if (cap < 0) { 3673 cap = 200; // We must not be measured yet -- setFrame() will fix it. 3674 } 3675 3676 Layout l = new StaticLayout(text, tv.getPaint(), cap, 3677 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 3678 float max = 0; 3679 for (int i = 0; i < l.getLineCount(); i++) { 3680 max = Math.max(max, l.getLineWidth(i)); 3681 } 3682 3683 /* 3684 * Now set the popup size to be big enough for the text plus the border. 3685 */ 3686 pop.setWidth(wid + (int) Math.ceil(max)); 3687 pop.setHeight(ht + l.getHeight()); 3688 } 3689 3690 3691 @Override 3692 protected boolean setFrame(int l, int t, int r, int b) { 3693 boolean result = super.setFrame(l, t, r, b); 3694 3695 if (mPopup != null) { 3696 TextView tv = (TextView) mPopup.getContentView(); 3697 chooseSize(mPopup, mError, tv); 3698 mPopup.update(this, getErrorX(), getErrorY(), 3699 mPopup.getWidth(), mPopup.getHeight()); 3700 } 3701 3702 restartMarqueeIfNeeded(); 3703 3704 return result; 3705 } 3706 3707 private void restartMarqueeIfNeeded() { 3708 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 3709 mRestartMarquee = false; 3710 startMarquee(); 3711 } 3712 } 3713 3714 /** 3715 * Sets the list of input filters that will be used if the buffer is 3716 * Editable. Has no effect otherwise. 3717 * 3718 * @attr ref android.R.styleable#TextView_maxLength 3719 */ 3720 public void setFilters(InputFilter[] filters) { 3721 if (filters == null) { 3722 throw new IllegalArgumentException(); 3723 } 3724 3725 mFilters = filters; 3726 3727 if (mText instanceof Editable) { 3728 setFilters((Editable) mText, filters); 3729 } 3730 } 3731 3732 /** 3733 * Sets the list of input filters on the specified Editable, 3734 * and includes mInput in the list if it is an InputFilter. 3735 */ 3736 private void setFilters(Editable e, InputFilter[] filters) { 3737 if (mInput instanceof InputFilter) { 3738 InputFilter[] nf = new InputFilter[filters.length + 1]; 3739 3740 System.arraycopy(filters, 0, nf, 0, filters.length); 3741 nf[filters.length] = (InputFilter) mInput; 3742 3743 e.setFilters(nf); 3744 } else { 3745 e.setFilters(filters); 3746 } 3747 } 3748 3749 /** 3750 * Returns the current list of input filters. 3751 */ 3752 public InputFilter[] getFilters() { 3753 return mFilters; 3754 } 3755 3756 ///////////////////////////////////////////////////////////////////////// 3757 3758 private int getVerticalOffset(boolean forceNormal) { 3759 int voffset = 0; 3760 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3761 3762 Layout l = mLayout; 3763 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3764 l = mHintLayout; 3765 } 3766 3767 if (gravity != Gravity.TOP) { 3768 int boxht; 3769 3770 if (l == mHintLayout) { 3771 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3772 getCompoundPaddingBottom(); 3773 } else { 3774 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3775 getExtendedPaddingBottom(); 3776 } 3777 int textht = l.getHeight(); 3778 3779 if (textht < boxht) { 3780 if (gravity == Gravity.BOTTOM) 3781 voffset = boxht - textht; 3782 else // (gravity == Gravity.CENTER_VERTICAL) 3783 voffset = (boxht - textht) >> 1; 3784 } 3785 } 3786 return voffset; 3787 } 3788 3789 private int getBottomVerticalOffset(boolean forceNormal) { 3790 int voffset = 0; 3791 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3792 3793 Layout l = mLayout; 3794 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3795 l = mHintLayout; 3796 } 3797 3798 if (gravity != Gravity.BOTTOM) { 3799 int boxht; 3800 3801 if (l == mHintLayout) { 3802 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3803 getCompoundPaddingBottom(); 3804 } else { 3805 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3806 getExtendedPaddingBottom(); 3807 } 3808 int textht = l.getHeight(); 3809 3810 if (textht < boxht) { 3811 if (gravity == Gravity.TOP) 3812 voffset = boxht - textht; 3813 else // (gravity == Gravity.CENTER_VERTICAL) 3814 voffset = (boxht - textht) >> 1; 3815 } 3816 } 3817 return voffset; 3818 } 3819 3820 private void invalidateCursorPath() { 3821 if (mHighlightPathBogus) { 3822 invalidateCursor(); 3823 } else { 3824 final int horizontalPadding = getCompoundPaddingLeft(); 3825 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 3826 3827 if (mCursorCount == 0) { 3828 synchronized (sTempRect) { 3829 /* 3830 * The reason for this concern about the thickness of the 3831 * cursor and doing the floor/ceil on the coordinates is that 3832 * some EditTexts (notably textfields in the Browser) have 3833 * anti-aliased text where not all the characters are 3834 * necessarily at integer-multiple locations. This should 3835 * make sure the entire cursor gets invalidated instead of 3836 * sometimes missing half a pixel. 3837 */ 3838 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 3839 if (thick < 1.0f) { 3840 thick = 1.0f; 3841 } 3842 3843 thick /= 2.0f; 3844 3845 mHighlightPath.computeBounds(sTempRect, false); 3846 3847 invalidate((int) FloatMath.floor(horizontalPadding + sTempRect.left - thick), 3848 (int) FloatMath.floor(verticalPadding + sTempRect.top - thick), 3849 (int) FloatMath.ceil(horizontalPadding + sTempRect.right + thick), 3850 (int) FloatMath.ceil(verticalPadding + sTempRect.bottom + thick)); 3851 } 3852 } else { 3853 for (int i = 0; i < mCursorCount; i++) { 3854 Rect bounds = mCursorDrawable[i].getBounds(); 3855 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 3856 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 3857 } 3858 } 3859 } 3860 } 3861 3862 private void invalidateCursor() { 3863 int where = getSelectionEnd(); 3864 3865 invalidateCursor(where, where, where); 3866 } 3867 3868 private void invalidateCursor(int a, int b, int c) { 3869 if (mLayout == null) { 3870 invalidate(); 3871 } else { 3872 if (a >= 0 || b >= 0 || c >= 0) { 3873 int first = Math.min(Math.min(a, b), c); 3874 int last = Math.max(Math.max(a, b), c); 3875 3876 int line = mLayout.getLineForOffset(first); 3877 int top = mLayout.getLineTop(line); 3878 3879 // This is ridiculous, but the descent from the line above 3880 // can hang down into the line we really want to redraw, 3881 // so we have to invalidate part of the line above to make 3882 // sure everything that needs to be redrawn really is. 3883 // (But not the whole line above, because that would cause 3884 // the same problem with the descenders on the line above it!) 3885 if (line > 0) { 3886 top -= mLayout.getLineDescent(line - 1); 3887 } 3888 3889 int line2; 3890 3891 if (first == last) 3892 line2 = line; 3893 else 3894 line2 = mLayout.getLineForOffset(last); 3895 3896 int bottom = mLayout.getLineTop(line2 + 1); 3897 3898 final int horizontalPadding = getCompoundPaddingLeft(); 3899 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 3900 3901 // If used, the cursor drawables can have an arbitrary dimension that can go beyond 3902 // the invalidated lines specified above. 3903 for (int i = 0; i < mCursorCount; i++) { 3904 Rect bounds = mCursorDrawable[i].getBounds(); 3905 top = Math.min(top, bounds.top); 3906 bottom = Math.max(bottom, bounds.bottom); 3907 // Horizontal bounds are already full width, no need to update 3908 } 3909 3910 invalidate(horizontalPadding + mScrollX, top + verticalPadding, 3911 horizontalPadding + mScrollX + getWidth() - 3912 getCompoundPaddingLeft() - getCompoundPaddingRight(), 3913 bottom + verticalPadding); 3914 } 3915 } 3916 } 3917 3918 private void registerForPreDraw() { 3919 final ViewTreeObserver observer = getViewTreeObserver(); 3920 3921 if (mPreDrawState == PREDRAW_NOT_REGISTERED) { 3922 observer.addOnPreDrawListener(this); 3923 mPreDrawState = PREDRAW_PENDING; 3924 } else if (mPreDrawState == PREDRAW_DONE) { 3925 mPreDrawState = PREDRAW_PENDING; 3926 } 3927 3928 // else state is PREDRAW_PENDING, so keep waiting. 3929 } 3930 3931 /** 3932 * {@inheritDoc} 3933 */ 3934 public boolean onPreDraw() { 3935 if (mPreDrawState != PREDRAW_PENDING) { 3936 return true; 3937 } 3938 3939 if (mLayout == null) { 3940 assumeLayout(); 3941 } 3942 3943 boolean changed = false; 3944 3945 if (mMovement != null) { 3946 /* This code also provides auto-scrolling when a cursor is moved using a 3947 * CursorController (insertion point or selection limits). 3948 * For selection, ensure start or end is visible depending on controller's state. 3949 */ 3950 int curs = getSelectionEnd(); 3951 // Do not create the controller if it is not already created. 3952 if (mSelectionModifierCursorController != null && 3953 mSelectionModifierCursorController.isSelectionStartDragged()) { 3954 curs = getSelectionStart(); 3955 } 3956 3957 /* 3958 * TODO: This should really only keep the end in view if 3959 * it already was before the text changed. I'm not sure 3960 * of a good way to tell from here if it was. 3961 */ 3962 if (curs < 0 && 3963 (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 3964 curs = mText.length(); 3965 } 3966 3967 if (curs >= 0) { 3968 changed = bringPointIntoView(curs); 3969 } 3970 } else { 3971 changed = bringTextIntoView(); 3972 } 3973 3974 // This has to be checked here since: 3975 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 3976 // a screen rotation) since layout is not yet initialized at that point. 3977 if (mCreatedWithASelection) { 3978 startSelectionActionMode(); 3979 mCreatedWithASelection = false; 3980 } 3981 3982 // Phone specific code (there is no ExtractEditText on tablets). 3983 // ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can 3984 // not be set. Do the test here instead. 3985 if (this instanceof ExtractEditText && hasSelection()) { 3986 startSelectionActionMode(); 3987 } 3988 3989 mPreDrawState = PREDRAW_DONE; 3990 return !changed; 3991 } 3992 3993 @Override 3994 protected void onAttachedToWindow() { 3995 super.onAttachedToWindow(); 3996 3997 mTemporaryDetach = false; 3998 3999 if (mShowErrorAfterAttach) { 4000 showError(); 4001 mShowErrorAfterAttach = false; 4002 } 4003 4004 final ViewTreeObserver observer = getViewTreeObserver(); 4005 // No need to create the controller. 4006 // The get method will add the listener on controller creation. 4007 if (mInsertionPointCursorController != null) { 4008 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 4009 } 4010 if (mSelectionModifierCursorController != null) { 4011 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 4012 } 4013 } 4014 4015 @Override 4016 protected void onDetachedFromWindow() { 4017 super.onDetachedFromWindow(); 4018 4019 final ViewTreeObserver observer = getViewTreeObserver(); 4020 if (mPreDrawState != PREDRAW_NOT_REGISTERED) { 4021 observer.removeOnPreDrawListener(this); 4022 mPreDrawState = PREDRAW_NOT_REGISTERED; 4023 } 4024 4025 if (mError != null) { 4026 hideError(); 4027 } 4028 4029 if (mBlink != null) { 4030 mBlink.removeCallbacks(mBlink); 4031 } 4032 4033 if (mInsertionPointCursorController != null) { 4034 mInsertionPointCursorController.onDetached(); 4035 } 4036 4037 if (mSelectionModifierCursorController != null) { 4038 mSelectionModifierCursorController.onDetached(); 4039 } 4040 4041 hideControllers(); 4042 } 4043 4044 @Override 4045 protected boolean isPaddingOffsetRequired() { 4046 return mShadowRadius != 0 || mDrawables != null; 4047 } 4048 4049 @Override 4050 protected int getLeftPaddingOffset() { 4051 return getCompoundPaddingLeft() - mPaddingLeft + 4052 (int) Math.min(0, mShadowDx - mShadowRadius); 4053 } 4054 4055 @Override 4056 protected int getTopPaddingOffset() { 4057 return (int) Math.min(0, mShadowDy - mShadowRadius); 4058 } 4059 4060 @Override 4061 protected int getBottomPaddingOffset() { 4062 return (int) Math.max(0, mShadowDy + mShadowRadius); 4063 } 4064 4065 @Override 4066 protected int getRightPaddingOffset() { 4067 return -(getCompoundPaddingRight() - mPaddingRight) + 4068 (int) Math.max(0, mShadowDx + mShadowRadius); 4069 } 4070 4071 @Override 4072 protected boolean verifyDrawable(Drawable who) { 4073 final boolean verified = super.verifyDrawable(who); 4074 if (!verified && mDrawables != null) { 4075 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 4076 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom; 4077 } 4078 return verified; 4079 } 4080 4081 @Override 4082 public void jumpDrawablesToCurrentState() { 4083 super.jumpDrawablesToCurrentState(); 4084 if (mDrawables != null) { 4085 if (mDrawables.mDrawableLeft != null) { 4086 mDrawables.mDrawableLeft.jumpToCurrentState(); 4087 } 4088 if (mDrawables.mDrawableTop != null) { 4089 mDrawables.mDrawableTop.jumpToCurrentState(); 4090 } 4091 if (mDrawables.mDrawableRight != null) { 4092 mDrawables.mDrawableRight.jumpToCurrentState(); 4093 } 4094 if (mDrawables.mDrawableBottom != null) { 4095 mDrawables.mDrawableBottom.jumpToCurrentState(); 4096 } 4097 } 4098 } 4099 4100 @Override 4101 public void invalidateDrawable(Drawable drawable) { 4102 if (verifyDrawable(drawable)) { 4103 final Rect dirty = drawable.getBounds(); 4104 int scrollX = mScrollX; 4105 int scrollY = mScrollY; 4106 4107 // IMPORTANT: The coordinates below are based on the coordinates computed 4108 // for each compound drawable in onDraw(). Make sure to update each section 4109 // accordingly. 4110 final TextView.Drawables drawables = mDrawables; 4111 if (drawables != null) { 4112 if (drawable == drawables.mDrawableLeft) { 4113 final int compoundPaddingTop = getCompoundPaddingTop(); 4114 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4115 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4116 4117 scrollX += mPaddingLeft; 4118 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 4119 } else if (drawable == drawables.mDrawableRight) { 4120 final int compoundPaddingTop = getCompoundPaddingTop(); 4121 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4122 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4123 4124 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 4125 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 4126 } else if (drawable == drawables.mDrawableTop) { 4127 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4128 final int compoundPaddingRight = getCompoundPaddingRight(); 4129 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4130 4131 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 4132 scrollY += mPaddingTop; 4133 } else if (drawable == drawables.mDrawableBottom) { 4134 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4135 final int compoundPaddingRight = getCompoundPaddingRight(); 4136 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4137 4138 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 4139 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 4140 } 4141 } 4142 4143 invalidate(dirty.left + scrollX, dirty.top + scrollY, 4144 dirty.right + scrollX, dirty.bottom + scrollY); 4145 } 4146 } 4147 4148 @Override 4149 public boolean isLayoutRtl(Drawable who) { 4150 if (who == null) return false; 4151 if (mDrawables != null) { 4152 final Drawables drawables = mDrawables; 4153 if (who == drawables.mDrawableLeft || who == drawables.mDrawableRight || 4154 who == drawables.mDrawableTop || who == drawables.mDrawableBottom) { 4155 return isLayoutRtl(); 4156 } 4157 } 4158 return super.isLayoutRtl(who); 4159 } 4160 4161 @Override 4162 protected boolean onSetAlpha(int alpha) { 4163 // Alpha is supported if and only if the drawing can be done in one pass. 4164 // TODO text with spans with a background color currently do not respect this alpha. 4165 if (getBackground() == null) { 4166 mCurrentAlpha = alpha; 4167 final Drawables dr = mDrawables; 4168 if (dr != null) { 4169 if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha); 4170 if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha); 4171 if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha); 4172 if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha); 4173 } 4174 return true; 4175 } 4176 4177 mCurrentAlpha = 255; 4178 return false; 4179 } 4180 4181 /** 4182 * When a TextView is used to display a useful piece of information to the user (such as a 4183 * contact's address), it should be made selectable, so that the user can select and copy this 4184 * content. 4185 * 4186 * Use {@link #setTextIsSelectable(boolean)} or the 4187 * {@link android.R.styleable#TextView_textIsSelectable} XML attribute to make this TextView 4188 * selectable (text is not selectable by default). 4189 * 4190 * Note that the content of an EditText is always selectable. 4191 * 4192 * @return True if the text displayed in this TextView can be selected by the user. 4193 * 4194 * @attr ref android.R.styleable#TextView_textIsSelectable 4195 */ 4196 public boolean isTextSelectable() { 4197 return mTextIsSelectable; 4198 } 4199 4200 /** 4201 * Sets whether or not (default) the content of this view is selectable by the user. 4202 * 4203 * Note that this methods affect the {@link #setFocusable(boolean)}, 4204 * {@link #setFocusableInTouchMode(boolean)} {@link #setClickable(boolean)} and 4205 * {@link #setLongClickable(boolean)} states and you may want to restore these if they were 4206 * customized. 4207 * 4208 * See {@link #isTextSelectable} for details. 4209 * 4210 * @param selectable Whether or not the content of this TextView should be selectable. 4211 */ 4212 public void setTextIsSelectable(boolean selectable) { 4213 if (mTextIsSelectable == selectable) return; 4214 4215 mTextIsSelectable = selectable; 4216 4217 setFocusableInTouchMode(selectable); 4218 setFocusable(selectable); 4219 setClickable(selectable); 4220 setLongClickable(selectable); 4221 4222 // mInputType is already EditorInfo.TYPE_NULL and mInput is null; 4223 4224 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 4225 setText(getText(), selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 4226 4227 // Called by setText above, but safer in case of future code changes 4228 prepareCursorControllers(); 4229 } 4230 4231 @Override 4232 protected int[] onCreateDrawableState(int extraSpace) { 4233 final int[] drawableState; 4234 4235 if (mSingleLine) { 4236 drawableState = super.onCreateDrawableState(extraSpace); 4237 } else { 4238 drawableState = super.onCreateDrawableState(extraSpace + 1); 4239 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 4240 } 4241 4242 if (mTextIsSelectable) { 4243 // Disable pressed state, which was introduced when TextView was made clickable. 4244 // Prevents text color change. 4245 // setClickable(false) would have a similar effect, but it also disables focus changes 4246 // and long press actions, which are both needed by text selection. 4247 final int length = drawableState.length; 4248 for (int i = 0; i < length; i++) { 4249 if (drawableState[i] == R.attr.state_pressed) { 4250 final int[] nonPressedState = new int[length - 1]; 4251 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 4252 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 4253 return nonPressedState; 4254 } 4255 } 4256 } 4257 4258 return drawableState; 4259 } 4260 4261 @Override 4262 protected void onDraw(Canvas canvas) { 4263 if (mPreDrawState == PREDRAW_DONE) { 4264 final ViewTreeObserver observer = getViewTreeObserver(); 4265 observer.removeOnPreDrawListener(this); 4266 mPreDrawState = PREDRAW_NOT_REGISTERED; 4267 } 4268 4269 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return; 4270 4271 restartMarqueeIfNeeded(); 4272 4273 // Draw the background for this view 4274 super.onDraw(canvas); 4275 4276 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4277 final int compoundPaddingTop = getCompoundPaddingTop(); 4278 final int compoundPaddingRight = getCompoundPaddingRight(); 4279 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4280 final int scrollX = mScrollX; 4281 final int scrollY = mScrollY; 4282 final int right = mRight; 4283 final int left = mLeft; 4284 final int bottom = mBottom; 4285 final int top = mTop; 4286 4287 final Drawables dr = mDrawables; 4288 if (dr != null) { 4289 /* 4290 * Compound, not extended, because the icon is not clipped 4291 * if the text height is smaller. 4292 */ 4293 4294 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 4295 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 4296 4297 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4298 // Make sure to update invalidateDrawable() when changing this code. 4299 if (dr.mDrawableLeft != null) { 4300 canvas.save(); 4301 canvas.translate(scrollX + mPaddingLeft, 4302 scrollY + compoundPaddingTop + 4303 (vspace - dr.mDrawableHeightLeft) / 2); 4304 dr.mDrawableLeft.draw(canvas); 4305 canvas.restore(); 4306 } 4307 4308 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4309 // Make sure to update invalidateDrawable() when changing this code. 4310 if (dr.mDrawableRight != null) { 4311 canvas.save(); 4312 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 4313 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 4314 dr.mDrawableRight.draw(canvas); 4315 canvas.restore(); 4316 } 4317 4318 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4319 // Make sure to update invalidateDrawable() when changing this code. 4320 if (dr.mDrawableTop != null) { 4321 canvas.save(); 4322 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 4323 scrollY + mPaddingTop); 4324 dr.mDrawableTop.draw(canvas); 4325 canvas.restore(); 4326 } 4327 4328 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4329 // Make sure to update invalidateDrawable() when changing this code. 4330 if (dr.mDrawableBottom != null) { 4331 canvas.save(); 4332 canvas.translate(scrollX + compoundPaddingLeft + 4333 (hspace - dr.mDrawableWidthBottom) / 2, 4334 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 4335 dr.mDrawableBottom.draw(canvas); 4336 canvas.restore(); 4337 } 4338 } 4339 4340 int color = mCurTextColor; 4341 4342 if (mLayout == null) { 4343 assumeLayout(); 4344 } 4345 4346 Layout layout = mLayout; 4347 int cursorcolor = color; 4348 4349 if (mHint != null && mText.length() == 0) { 4350 if (mHintTextColor != null) { 4351 color = mCurHintTextColor; 4352 } 4353 4354 layout = mHintLayout; 4355 } 4356 4357 mTextPaint.setColor(color); 4358 if (mCurrentAlpha != 255) { 4359 // If set, the alpha will override the color's alpha. Multiply the alphas. 4360 mTextPaint.setAlpha((mCurrentAlpha * Color.alpha(color)) / 255); 4361 } 4362 mTextPaint.drawableState = getDrawableState(); 4363 4364 canvas.save(); 4365 /* Would be faster if we didn't have to do this. Can we chop the 4366 (displayable) text so that we don't need to do this ever? 4367 */ 4368 4369 int extendedPaddingTop = getExtendedPaddingTop(); 4370 int extendedPaddingBottom = getExtendedPaddingBottom(); 4371 4372 float clipLeft = compoundPaddingLeft + scrollX; 4373 float clipTop = extendedPaddingTop + scrollY; 4374 float clipRight = right - left - compoundPaddingRight + scrollX; 4375 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 4376 4377 if (mShadowRadius != 0) { 4378 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4379 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4380 4381 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4382 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4383 } 4384 4385 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4386 4387 int voffsetText = 0; 4388 int voffsetCursor = 0; 4389 4390 // translate in by our padding 4391 { 4392 /* shortcircuit calling getVerticaOffset() */ 4393 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4394 voffsetText = getVerticalOffset(false); 4395 voffsetCursor = getVerticalOffset(true); 4396 } 4397 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4398 } 4399 4400 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, isLayoutRtl()); 4401 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4402 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4403 (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4404 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4405 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4406 } 4407 4408 if (mMarquee != null && mMarquee.isRunning()) { 4409 canvas.translate(-mMarquee.mScroll, 0.0f); 4410 } 4411 } 4412 4413 Path highlight = null; 4414 int selStart = -1, selEnd = -1; 4415 boolean drawCursor = false; 4416 4417 // If there is no movement method, then there can be no selection. 4418 // Check that first and attempt to skip everything having to do with 4419 // the cursor. 4420 // XXX This is not strictly true -- a program could set the 4421 // selection manually if it really wanted to. 4422 if (mMovement != null && (isFocused() || isPressed())) { 4423 selStart = getSelectionStart(); 4424 selEnd = getSelectionEnd(); 4425 4426 if ((isCursorVisible() || mTextIsSelectable) && selStart >= 0 && isEnabled()) { 4427 if (mHighlightPath == null) 4428 mHighlightPath = new Path(); 4429 4430 if (selStart == selEnd) { 4431 if (!mTextIsSelectable && 4432 (SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 4433 if (mHighlightPathBogus) { 4434 mHighlightPath.reset(); 4435 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4436 updateCursorsPositions(); 4437 mHighlightPathBogus = false; 4438 } 4439 4440 // XXX should pass to skin instead of drawing directly 4441 mHighlightPaint.setColor(cursorcolor); 4442 if (mCurrentAlpha != 255) { 4443 mHighlightPaint.setAlpha( 4444 (mCurrentAlpha * Color.alpha(cursorcolor)) / 255); 4445 } 4446 mHighlightPaint.setStyle(Paint.Style.STROKE); 4447 highlight = mHighlightPath; 4448 drawCursor = mCursorCount > 0; 4449 } 4450 } else { 4451 if (mHighlightPathBogus) { 4452 mHighlightPath.reset(); 4453 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4454 mHighlightPathBogus = false; 4455 } 4456 4457 // XXX should pass to skin instead of drawing directly 4458 mHighlightPaint.setColor(mHighlightColor); 4459 if (mCurrentAlpha != 255) { 4460 mHighlightPaint.setAlpha( 4461 (mCurrentAlpha * Color.alpha(mHighlightColor)) / 255); 4462 } 4463 mHighlightPaint.setStyle(Paint.Style.FILL); 4464 4465 highlight = mHighlightPath; 4466 } 4467 } 4468 } 4469 4470 /* Comment out until we decide what to do about animations 4471 boolean isLinearTextOn = false; 4472 if (currentTransformation != null) { 4473 isLinearTextOn = mTextPaint.isLinearTextOn(); 4474 Matrix m = currentTransformation.getMatrix(); 4475 if (!m.isIdentity()) { 4476 // mTextPaint.setLinearTextOn(true); 4477 } 4478 } 4479 */ 4480 4481 final InputMethodState ims = mInputMethodState; 4482 final int cursorOffsetVertical = voffsetCursor - voffsetText; 4483 if (ims != null && ims.mBatchEditNesting == 0) { 4484 InputMethodManager imm = InputMethodManager.peekInstance(); 4485 if (imm != null) { 4486 if (imm.isActive(this)) { 4487 boolean reported = false; 4488 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4489 // We are in extract mode and the content has changed 4490 // in some way... just report complete new text to the 4491 // input method. 4492 reported = reportExtractedText(); 4493 } 4494 if (!reported && highlight != null) { 4495 int candStart = -1; 4496 int candEnd = -1; 4497 if (mText instanceof Spannable) { 4498 Spannable sp = (Spannable)mText; 4499 candStart = EditableInputConnection.getComposingSpanStart(sp); 4500 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 4501 } 4502 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 4503 } 4504 } 4505 4506 if (imm.isWatchingCursor(this) && highlight != null) { 4507 highlight.computeBounds(ims.mTmpRectF, true); 4508 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 4509 4510 canvas.getMatrix().mapPoints(ims.mTmpOffset); 4511 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 4512 4513 ims.mTmpRectF.offset(0, cursorOffsetVertical); 4514 4515 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 4516 (int)(ims.mTmpRectF.top + 0.5), 4517 (int)(ims.mTmpRectF.right + 0.5), 4518 (int)(ims.mTmpRectF.bottom + 0.5)); 4519 4520 imm.updateCursor(this, 4521 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 4522 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 4523 } 4524 } 4525 } 4526 4527 if (mCorrectionHighlighter != null) { 4528 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 4529 } 4530 4531 if (drawCursor) { 4532 drawCursor(canvas, cursorOffsetVertical); 4533 // Rely on the drawable entirely, do not draw the cursor line. 4534 // Has to be done after the IMM related code above which relies on the highlight. 4535 highlight = null; 4536 } 4537 4538 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4539 4540 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 4541 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 4542 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4543 } 4544 4545 /* Comment out until we decide what to do about animations 4546 if (currentTransformation != null) { 4547 mTextPaint.setLinearTextOn(isLinearTextOn); 4548 } 4549 */ 4550 4551 canvas.restore(); 4552 } 4553 4554 private void updateCursorsPositions() { 4555 if (mCursorDrawableRes == 0) { 4556 mCursorCount = 0; 4557 return; 4558 } 4559 4560 final int offset = getSelectionStart(); 4561 final int line = mLayout.getLineForOffset(offset); 4562 final int top = mLayout.getLineTop(line); 4563 final int bottom = mLayout.getLineTop(line + 1); 4564 4565 mCursorCount = mLayout.isLevelBoundary(offset) ? 2 : 1; 4566 4567 int middle = bottom; 4568 if (mCursorCount == 2) { 4569 // Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)} 4570 middle = (top + bottom) >> 1; 4571 } 4572 4573 updateCursorPosition(0, top, middle, mLayout.getPrimaryHorizontal(offset)); 4574 4575 if (mCursorCount == 2) { 4576 updateCursorPosition(1, middle, bottom, mLayout.getSecondaryHorizontal(offset)); 4577 } 4578 } 4579 4580 private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) { 4581 if (mCursorDrawable[cursorIndex] == null) 4582 mCursorDrawable[cursorIndex] = mContext.getResources().getDrawable(mCursorDrawableRes); 4583 4584 if (mTempRect == null) mTempRect = new Rect(); 4585 4586 mCursorDrawable[cursorIndex].getPadding(mTempRect); 4587 final int width = mCursorDrawable[cursorIndex].getIntrinsicWidth(); 4588 horizontal = Math.max(0.5f, horizontal - 0.5f); 4589 final int left = (int) (horizontal) - mTempRect.left; 4590 mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width, 4591 bottom + mTempRect.bottom); 4592 } 4593 4594 private void drawCursor(Canvas canvas, int cursorOffsetVertical) { 4595 final boolean translate = cursorOffsetVertical != 0; 4596 if (translate) canvas.translate(0, cursorOffsetVertical); 4597 for (int i = 0; i < mCursorCount; i++) { 4598 mCursorDrawable[i].draw(canvas); 4599 } 4600 if (translate) canvas.translate(0, -cursorOffsetVertical); 4601 } 4602 4603 @Override 4604 public void getFocusedRect(Rect r) { 4605 if (mLayout == null) { 4606 super.getFocusedRect(r); 4607 return; 4608 } 4609 4610 int sel = getSelectionEnd(); 4611 if (sel < 0) { 4612 super.getFocusedRect(r); 4613 return; 4614 } 4615 4616 int line = mLayout.getLineForOffset(sel); 4617 r.top = mLayout.getLineTop(line); 4618 r.bottom = mLayout.getLineBottom(line); 4619 4620 r.left = (int) mLayout.getPrimaryHorizontal(sel); 4621 r.right = r.left + 1; 4622 4623 // Adjust for padding and gravity. 4624 int paddingLeft = getCompoundPaddingLeft(); 4625 int paddingTop = getExtendedPaddingTop(); 4626 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4627 paddingTop += getVerticalOffset(false); 4628 } 4629 r.offset(paddingLeft, paddingTop); 4630 } 4631 4632 /** 4633 * Return the number of lines of text, or 0 if the internal Layout has not 4634 * been built. 4635 */ 4636 public int getLineCount() { 4637 return mLayout != null ? mLayout.getLineCount() : 0; 4638 } 4639 4640 /** 4641 * Return the baseline for the specified line (0...getLineCount() - 1) 4642 * If bounds is not null, return the top, left, right, bottom extents 4643 * of the specified line in it. If the internal Layout has not been built, 4644 * return 0 and set bounds to (0, 0, 0, 0) 4645 * @param line which line to examine (0..getLineCount() - 1) 4646 * @param bounds Optional. If not null, it returns the extent of the line 4647 * @return the Y-coordinate of the baseline 4648 */ 4649 public int getLineBounds(int line, Rect bounds) { 4650 if (mLayout == null) { 4651 if (bounds != null) { 4652 bounds.set(0, 0, 0, 0); 4653 } 4654 return 0; 4655 } 4656 else { 4657 int baseline = mLayout.getLineBounds(line, bounds); 4658 4659 int voffset = getExtendedPaddingTop(); 4660 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4661 voffset += getVerticalOffset(true); 4662 } 4663 if (bounds != null) { 4664 bounds.offset(getCompoundPaddingLeft(), voffset); 4665 } 4666 return baseline + voffset; 4667 } 4668 } 4669 4670 @Override 4671 public int getBaseline() { 4672 if (mLayout == null) { 4673 return super.getBaseline(); 4674 } 4675 4676 int voffset = 0; 4677 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4678 voffset = getVerticalOffset(true); 4679 } 4680 4681 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 4682 } 4683 4684 @Override 4685 public boolean onKeyDown(int keyCode, KeyEvent event) { 4686 int which = doKeyDown(keyCode, event, null); 4687 if (which == 0) { 4688 // Go through default dispatching. 4689 return super.onKeyDown(keyCode, event); 4690 } 4691 4692 return true; 4693 } 4694 4695 @Override 4696 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 4697 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 4698 4699 int which = doKeyDown(keyCode, down, event); 4700 if (which == 0) { 4701 // Go through default dispatching. 4702 return super.onKeyMultiple(keyCode, repeatCount, event); 4703 } 4704 if (which == -1) { 4705 // Consumed the whole thing. 4706 return true; 4707 } 4708 4709 repeatCount--; 4710 4711 // We are going to dispatch the remaining events to either the input 4712 // or movement method. To do this, we will just send a repeated stream 4713 // of down and up events until we have done the complete repeatCount. 4714 // It would be nice if those interfaces had an onKeyMultiple() method, 4715 // but adding that is a more complicated change. 4716 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 4717 if (which == 1) { 4718 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4719 while (--repeatCount > 0) { 4720 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 4721 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4722 } 4723 hideErrorIfUnchanged(); 4724 4725 } else if (which == 2) { 4726 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4727 while (--repeatCount > 0) { 4728 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 4729 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4730 } 4731 } 4732 4733 return true; 4734 } 4735 4736 /** 4737 * Returns true if pressing ENTER in this field advances focus instead 4738 * of inserting the character. This is true mostly in single-line fields, 4739 * but also in mail addresses and subjects which will display on multiple 4740 * lines but where it doesn't make sense to insert newlines. 4741 */ 4742 private boolean shouldAdvanceFocusOnEnter() { 4743 if (mInput == null) { 4744 return false; 4745 } 4746 4747 if (mSingleLine) { 4748 return true; 4749 } 4750 4751 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4752 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4753 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 4754 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 4755 return true; 4756 } 4757 } 4758 4759 return false; 4760 } 4761 4762 /** 4763 * Returns true if pressing TAB in this field advances focus instead 4764 * of inserting the character. Insert tabs only in multi-line editors. 4765 */ 4766 private boolean shouldAdvanceFocusOnTab() { 4767 if (mInput != null && !mSingleLine) { 4768 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4769 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4770 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 4771 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 4772 return false; 4773 } 4774 } 4775 } 4776 return true; 4777 } 4778 4779 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 4780 if (!isEnabled()) { 4781 return 0; 4782 } 4783 4784 switch (keyCode) { 4785 case KeyEvent.KEYCODE_ENTER: 4786 mEnterKeyIsDown = true; 4787 if (event.hasNoModifiers()) { 4788 // When mInputContentType is set, we know that we are 4789 // running in a "modern" cupcake environment, so don't need 4790 // to worry about the application trying to capture 4791 // enter key events. 4792 if (mInputContentType != null) { 4793 // If there is an action listener, given them a 4794 // chance to consume the event. 4795 if (mInputContentType.onEditorActionListener != null && 4796 mInputContentType.onEditorActionListener.onEditorAction( 4797 this, EditorInfo.IME_NULL, event)) { 4798 mInputContentType.enterDown = true; 4799 // We are consuming the enter key for them. 4800 return -1; 4801 } 4802 } 4803 4804 // If our editor should move focus when enter is pressed, or 4805 // this is a generated event from an IME action button, then 4806 // don't let it be inserted into the text. 4807 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 4808 || shouldAdvanceFocusOnEnter()) { 4809 if (mOnClickListener != null) { 4810 return 0; 4811 } 4812 return -1; 4813 } 4814 } 4815 break; 4816 4817 case KeyEvent.KEYCODE_DPAD_CENTER: 4818 mDPadCenterIsDown = true; 4819 if (event.hasNoModifiers()) { 4820 if (shouldAdvanceFocusOnEnter()) { 4821 return 0; 4822 } 4823 } 4824 break; 4825 4826 case KeyEvent.KEYCODE_TAB: 4827 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 4828 if (shouldAdvanceFocusOnTab()) { 4829 return 0; 4830 } 4831 } 4832 break; 4833 4834 // Has to be done on key down (and not on key up) to correctly be intercepted. 4835 case KeyEvent.KEYCODE_BACK: 4836 if (mSelectionActionMode != null) { 4837 stopSelectionActionMode(); 4838 return -1; 4839 } 4840 break; 4841 } 4842 4843 if (mInput != null) { 4844 resetErrorChangedFlag(); 4845 4846 boolean doDown = true; 4847 if (otherEvent != null) { 4848 try { 4849 beginBatchEdit(); 4850 final boolean handled = mInput.onKeyOther(this, (Editable) mText, otherEvent); 4851 hideErrorIfUnchanged(); 4852 doDown = false; 4853 if (handled) { 4854 return -1; 4855 } 4856 } catch (AbstractMethodError e) { 4857 // onKeyOther was added after 1.0, so if it isn't 4858 // implemented we need to try to dispatch as a regular down. 4859 } finally { 4860 endBatchEdit(); 4861 } 4862 } 4863 4864 if (doDown) { 4865 beginBatchEdit(); 4866 final boolean handled = mInput.onKeyDown(this, (Editable) mText, keyCode, event); 4867 endBatchEdit(); 4868 hideErrorIfUnchanged(); 4869 if (handled) return 1; 4870 } 4871 } 4872 4873 // bug 650865: sometimes we get a key event before a layout. 4874 // don't try to move around if we don't know the layout. 4875 4876 if (mMovement != null && mLayout != null) { 4877 boolean doDown = true; 4878 if (otherEvent != null) { 4879 try { 4880 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 4881 otherEvent); 4882 doDown = false; 4883 if (handled) { 4884 return -1; 4885 } 4886 } catch (AbstractMethodError e) { 4887 // onKeyOther was added after 1.0, so if it isn't 4888 // implemented we need to try to dispatch as a regular down. 4889 } 4890 } 4891 if (doDown) { 4892 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 4893 return 2; 4894 } 4895 } 4896 4897 return 0; 4898 } 4899 4900 /** 4901 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 4902 * can be recorded. 4903 * @hide 4904 */ 4905 public void resetErrorChangedFlag() { 4906 /* 4907 * Keep track of what the error was before doing the input 4908 * so that if an input filter changed the error, we leave 4909 * that error showing. Otherwise, we take down whatever 4910 * error was showing when the user types something. 4911 */ 4912 mErrorWasChanged = false; 4913 } 4914 4915 /** 4916 * @hide 4917 */ 4918 public void hideErrorIfUnchanged() { 4919 if (mError != null && !mErrorWasChanged) { 4920 setError(null, null); 4921 } 4922 } 4923 4924 @Override 4925 public boolean onKeyUp(int keyCode, KeyEvent event) { 4926 if (!isEnabled()) { 4927 return super.onKeyUp(keyCode, event); 4928 } 4929 4930 switch (keyCode) { 4931 case KeyEvent.KEYCODE_DPAD_CENTER: 4932 mDPadCenterIsDown = false; 4933 if (event.hasNoModifiers()) { 4934 /* 4935 * If there is a click listener, just call through to 4936 * super, which will invoke it. 4937 * 4938 * If there isn't a click listener, try to show the soft 4939 * input method. (It will also 4940 * call performClick(), but that won't do anything in 4941 * this case.) 4942 */ 4943 if (mOnClickListener == null) { 4944 if (mMovement != null && mText instanceof Editable 4945 && mLayout != null && onCheckIsTextEditor()) { 4946 InputMethodManager imm = InputMethodManager.peekInstance(); 4947 if (imm != null) imm.showSoftInput(this, 0); 4948 } 4949 } 4950 } 4951 return super.onKeyUp(keyCode, event); 4952 4953 case KeyEvent.KEYCODE_ENTER: 4954 mEnterKeyIsDown = false; 4955 if (event.hasNoModifiers()) { 4956 if (mInputContentType != null 4957 && mInputContentType.onEditorActionListener != null 4958 && mInputContentType.enterDown) { 4959 mInputContentType.enterDown = false; 4960 if (mInputContentType.onEditorActionListener.onEditorAction( 4961 this, EditorInfo.IME_NULL, event)) { 4962 return true; 4963 } 4964 } 4965 4966 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 4967 || shouldAdvanceFocusOnEnter()) { 4968 /* 4969 * If there is a click listener, just call through to 4970 * super, which will invoke it. 4971 * 4972 * If there isn't a click listener, try to advance focus, 4973 * but still call through to super, which will reset the 4974 * pressed state and longpress state. (It will also 4975 * call performClick(), but that won't do anything in 4976 * this case.) 4977 */ 4978 if (mOnClickListener == null) { 4979 View v = focusSearch(FOCUS_DOWN); 4980 4981 if (v != null) { 4982 if (!v.requestFocus(FOCUS_DOWN)) { 4983 throw new IllegalStateException( 4984 "focus search returned a view " + 4985 "that wasn't able to take focus!"); 4986 } 4987 4988 /* 4989 * Return true because we handled the key; super 4990 * will return false because there was no click 4991 * listener. 4992 */ 4993 super.onKeyUp(keyCode, event); 4994 return true; 4995 } else if ((event.getFlags() 4996 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 4997 // No target for next focus, but make sure the IME 4998 // if this came from it. 4999 InputMethodManager imm = InputMethodManager.peekInstance(); 5000 if (imm != null && imm.isActive(this)) { 5001 imm.hideSoftInputFromWindow(getWindowToken(), 0); 5002 } 5003 } 5004 } 5005 } 5006 return super.onKeyUp(keyCode, event); 5007 } 5008 break; 5009 } 5010 5011 if (mInput != null) 5012 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 5013 return true; 5014 5015 if (mMovement != null && mLayout != null) 5016 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 5017 return true; 5018 5019 return super.onKeyUp(keyCode, event); 5020 } 5021 5022 @Override public boolean onCheckIsTextEditor() { 5023 return mInputType != EditorInfo.TYPE_NULL; 5024 } 5025 5026 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5027 if (onCheckIsTextEditor() && isEnabled()) { 5028 if (mInputMethodState == null) { 5029 mInputMethodState = new InputMethodState(); 5030 } 5031 outAttrs.inputType = mInputType; 5032 if (mInputContentType != null) { 5033 outAttrs.imeOptions = mInputContentType.imeOptions; 5034 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 5035 outAttrs.actionLabel = mInputContentType.imeActionLabel; 5036 outAttrs.actionId = mInputContentType.imeActionId; 5037 outAttrs.extras = mInputContentType.extras; 5038 } else { 5039 outAttrs.imeOptions = EditorInfo.IME_NULL; 5040 } 5041 if (focusSearch(FOCUS_DOWN) != null) { 5042 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 5043 } 5044 if (focusSearch(FOCUS_UP) != null) { 5045 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 5046 } 5047 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 5048 == EditorInfo.IME_ACTION_UNSPECIFIED) { 5049 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 5050 // An action has not been set, but the enter key will move to 5051 // the next focus, so set the action to that. 5052 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 5053 } else { 5054 // An action has not been set, and there is no focus to move 5055 // to, so let's just supply a "done" action. 5056 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 5057 } 5058 if (!shouldAdvanceFocusOnEnter()) { 5059 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5060 } 5061 } 5062 if (isMultilineInputType(outAttrs.inputType)) { 5063 // Multi-line text editors should always show an enter key. 5064 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5065 } 5066 outAttrs.hintText = mHint; 5067 if (mText instanceof Editable) { 5068 InputConnection ic = new EditableInputConnection(this); 5069 outAttrs.initialSelStart = getSelectionStart(); 5070 outAttrs.initialSelEnd = getSelectionEnd(); 5071 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 5072 return ic; 5073 } 5074 } 5075 return null; 5076 } 5077 5078 /** 5079 * If this TextView contains editable content, extract a portion of it 5080 * based on the information in <var>request</var> in to <var>outText</var>. 5081 * @return Returns true if the text was successfully extracted, else false. 5082 */ 5083 public boolean extractText(ExtractedTextRequest request, 5084 ExtractedText outText) { 5085 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 5086 EXTRACT_UNKNOWN, outText); 5087 } 5088 5089 static final int EXTRACT_NOTHING = -2; 5090 static final int EXTRACT_UNKNOWN = -1; 5091 5092 boolean extractTextInternal(ExtractedTextRequest request, 5093 int partialStartOffset, int partialEndOffset, int delta, 5094 ExtractedText outText) { 5095 final CharSequence content = mText; 5096 if (content != null) { 5097 if (partialStartOffset != EXTRACT_NOTHING) { 5098 final int N = content.length(); 5099 if (partialStartOffset < 0) { 5100 outText.partialStartOffset = outText.partialEndOffset = -1; 5101 partialStartOffset = 0; 5102 partialEndOffset = N; 5103 } else { 5104 // Now use the delta to determine the actual amount of text 5105 // we need. 5106 partialEndOffset += delta; 5107 // Adjust offsets to ensure we contain full spans. 5108 if (content instanceof Spanned) { 5109 Spanned spanned = (Spanned)content; 5110 Object[] spans = spanned.getSpans(partialStartOffset, 5111 partialEndOffset, ParcelableSpan.class); 5112 int i = spans.length; 5113 while (i > 0) { 5114 i--; 5115 int j = spanned.getSpanStart(spans[i]); 5116 if (j < partialStartOffset) partialStartOffset = j; 5117 j = spanned.getSpanEnd(spans[i]); 5118 if (j > partialEndOffset) partialEndOffset = j; 5119 } 5120 } 5121 outText.partialStartOffset = partialStartOffset; 5122 outText.partialEndOffset = partialEndOffset - delta; 5123 5124 if (partialStartOffset > N) { 5125 partialStartOffset = N; 5126 } else if (partialStartOffset < 0) { 5127 partialStartOffset = 0; 5128 } 5129 if (partialEndOffset > N) { 5130 partialEndOffset = N; 5131 } else if (partialEndOffset < 0) { 5132 partialEndOffset = 0; 5133 } 5134 } 5135 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 5136 outText.text = content.subSequence(partialStartOffset, 5137 partialEndOffset); 5138 } else { 5139 outText.text = TextUtils.substring(content, partialStartOffset, 5140 partialEndOffset); 5141 } 5142 } else { 5143 outText.partialStartOffset = 0; 5144 outText.partialEndOffset = 0; 5145 outText.text = ""; 5146 } 5147 outText.flags = 0; 5148 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 5149 outText.flags |= ExtractedText.FLAG_SELECTING; 5150 } 5151 if (mSingleLine) { 5152 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 5153 } 5154 outText.startOffset = 0; 5155 outText.selectionStart = getSelectionStart(); 5156 outText.selectionEnd = getSelectionEnd(); 5157 return true; 5158 } 5159 return false; 5160 } 5161 5162 boolean reportExtractedText() { 5163 final InputMethodState ims = mInputMethodState; 5164 if (ims != null) { 5165 final boolean contentChanged = ims.mContentChanged; 5166 if (contentChanged || ims.mSelectionModeChanged) { 5167 ims.mContentChanged = false; 5168 ims.mSelectionModeChanged = false; 5169 final ExtractedTextRequest req = mInputMethodState.mExtracting; 5170 if (req != null) { 5171 InputMethodManager imm = InputMethodManager.peekInstance(); 5172 if (imm != null) { 5173 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 5174 + ims.mChangedStart + " end=" + ims.mChangedEnd 5175 + " delta=" + ims.mChangedDelta); 5176 if (ims.mChangedStart < 0 && !contentChanged) { 5177 ims.mChangedStart = EXTRACT_NOTHING; 5178 } 5179 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 5180 ims.mChangedDelta, ims.mTmpExtracted)) { 5181 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 5182 + ims.mTmpExtracted.partialStartOffset 5183 + " end=" + ims.mTmpExtracted.partialEndOffset 5184 + ": " + ims.mTmpExtracted.text); 5185 imm.updateExtractedText(this, req.token, 5186 mInputMethodState.mTmpExtracted); 5187 ims.mChangedStart = EXTRACT_UNKNOWN; 5188 ims.mChangedEnd = EXTRACT_UNKNOWN; 5189 ims.mChangedDelta = 0; 5190 ims.mContentChanged = false; 5191 return true; 5192 } 5193 } 5194 } 5195 } 5196 } 5197 return false; 5198 } 5199 5200 /** 5201 * This is used to remove all style-impacting spans from text before new 5202 * extracted text is being replaced into it, so that we don't have any 5203 * lingering spans applied during the replace. 5204 */ 5205 static void removeParcelableSpans(Spannable spannable, int start, int end) { 5206 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 5207 int i = spans.length; 5208 while (i > 0) { 5209 i--; 5210 spannable.removeSpan(spans[i]); 5211 } 5212 } 5213 5214 /** 5215 * Apply to this text view the given extracted text, as previously 5216 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 5217 */ 5218 public void setExtractedText(ExtractedText text) { 5219 Editable content = getEditableText(); 5220 if (text.text != null) { 5221 if (content == null) { 5222 setText(text.text, TextView.BufferType.EDITABLE); 5223 } else if (text.partialStartOffset < 0) { 5224 removeParcelableSpans(content, 0, content.length()); 5225 content.replace(0, content.length(), text.text); 5226 } else { 5227 final int N = content.length(); 5228 int start = text.partialStartOffset; 5229 if (start > N) start = N; 5230 int end = text.partialEndOffset; 5231 if (end > N) end = N; 5232 removeParcelableSpans(content, start, end); 5233 content.replace(start, end, text.text); 5234 } 5235 } 5236 5237 // Now set the selection position... make sure it is in range, to 5238 // avoid crashes. If this is a partial update, it is possible that 5239 // the underlying text may have changed, causing us problems here. 5240 // Also we just don't want to trust clients to do the right thing. 5241 Spannable sp = (Spannable)getText(); 5242 final int N = sp.length(); 5243 int start = text.selectionStart; 5244 if (start < 0) start = 0; 5245 else if (start > N) start = N; 5246 int end = text.selectionEnd; 5247 if (end < 0) end = 0; 5248 else if (end > N) end = N; 5249 Selection.setSelection(sp, start, end); 5250 5251 // Finally, update the selection mode. 5252 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 5253 MetaKeyKeyListener.startSelecting(this, sp); 5254 } else { 5255 MetaKeyKeyListener.stopSelecting(this, sp); 5256 } 5257 } 5258 5259 /** 5260 * @hide 5261 */ 5262 public void setExtracting(ExtractedTextRequest req) { 5263 if (mInputMethodState != null) { 5264 mInputMethodState.mExtracting = req; 5265 } 5266 // This stops a possible text selection mode. Maybe not intended. 5267 hideControllers(); 5268 } 5269 5270 /** 5271 * Called by the framework in response to a text completion from 5272 * the current input method, provided by it calling 5273 * {@link InputConnection#commitCompletion 5274 * InputConnection.commitCompletion()}. The default implementation does 5275 * nothing; text views that are supporting auto-completion should override 5276 * this to do their desired behavior. 5277 * 5278 * @param text The auto complete text the user has selected. 5279 */ 5280 public void onCommitCompletion(CompletionInfo text) { 5281 // intentionally empty 5282 } 5283 5284 /** 5285 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 5286 * a dictionnary) from the current input method, provided by it calling 5287 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 5288 * implementation flashes the background of the corrected word to provide feedback to the user. 5289 * 5290 * @param info The auto correct info about the text that was corrected. 5291 */ 5292 public void onCommitCorrection(CorrectionInfo info) { 5293 if (mCorrectionHighlighter == null) { 5294 mCorrectionHighlighter = new CorrectionHighlighter(); 5295 } else { 5296 mCorrectionHighlighter.invalidate(false); 5297 } 5298 5299 mCorrectionHighlighter.highlight(info); 5300 } 5301 5302 private class CorrectionHighlighter { 5303 private final Path mPath = new Path(); 5304 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 5305 private int mStart, mEnd; 5306 private long mFadingStartTime; 5307 private final static int FADE_OUT_DURATION = 400; 5308 5309 public CorrectionHighlighter() { 5310 mPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale); 5311 mPaint.setStyle(Paint.Style.FILL); 5312 } 5313 5314 public void highlight(CorrectionInfo info) { 5315 mStart = info.getOffset(); 5316 mEnd = mStart + info.getNewText().length(); 5317 mFadingStartTime = SystemClock.uptimeMillis(); 5318 5319 if (mStart < 0 || mEnd < 0) { 5320 stopAnimation(); 5321 } 5322 } 5323 5324 public void draw(Canvas canvas, int cursorOffsetVertical) { 5325 if (updatePath() && updatePaint()) { 5326 if (cursorOffsetVertical != 0) { 5327 canvas.translate(0, cursorOffsetVertical); 5328 } 5329 5330 canvas.drawPath(mPath, mPaint); 5331 5332 if (cursorOffsetVertical != 0) { 5333 canvas.translate(0, -cursorOffsetVertical); 5334 } 5335 invalidate(true); 5336 } else { 5337 stopAnimation(); 5338 invalidate(false); 5339 } 5340 } 5341 5342 private boolean updatePaint() { 5343 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 5344 if (duration > FADE_OUT_DURATION) return false; 5345 5346 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 5347 final int highlightColorAlpha = Color.alpha(mHighlightColor); 5348 final int color = (mHighlightColor & 0x00FFFFFF) + 5349 ((int) (highlightColorAlpha * coef) << 24); 5350 mPaint.setColor(color); 5351 return true; 5352 } 5353 5354 private boolean updatePath() { 5355 final Layout layout = TextView.this.mLayout; 5356 if (layout == null) return false; 5357 5358 // Update in case text is edited while the animation is run 5359 final int length = mText.length(); 5360 int start = Math.min(length, mStart); 5361 int end = Math.min(length, mEnd); 5362 5363 mPath.reset(); 5364 TextView.this.mLayout.getSelectionPath(start, end, mPath); 5365 return true; 5366 } 5367 5368 private void invalidate(boolean delayed) { 5369 if (TextView.this.mLayout == null) return; 5370 5371 synchronized (sTempRect) { 5372 mPath.computeBounds(sTempRect, false); 5373 5374 int left = getCompoundPaddingLeft(); 5375 int top = getExtendedPaddingTop() + getVerticalOffset(true); 5376 5377 if (delayed) { 5378 TextView.this.postInvalidateDelayed(16, // 60 Hz update 5379 left + (int) sTempRect.left, top + (int) sTempRect.top, 5380 left + (int) sTempRect.right, top + (int) sTempRect.bottom); 5381 } else { 5382 TextView.this.postInvalidate((int) sTempRect.left, (int) sTempRect.top, 5383 (int) sTempRect.right, (int) sTempRect.bottom); 5384 } 5385 } 5386 } 5387 5388 private void stopAnimation() { 5389 TextView.this.mCorrectionHighlighter = null; 5390 } 5391 } 5392 5393 public void beginBatchEdit() { 5394 mInBatchEditControllers = true; 5395 final InputMethodState ims = mInputMethodState; 5396 if (ims != null) { 5397 int nesting = ++ims.mBatchEditNesting; 5398 if (nesting == 1) { 5399 ims.mCursorChanged = false; 5400 ims.mChangedDelta = 0; 5401 if (ims.mContentChanged) { 5402 // We already have a pending change from somewhere else, 5403 // so turn this into a full update. 5404 ims.mChangedStart = 0; 5405 ims.mChangedEnd = mText.length(); 5406 } else { 5407 ims.mChangedStart = EXTRACT_UNKNOWN; 5408 ims.mChangedEnd = EXTRACT_UNKNOWN; 5409 ims.mContentChanged = false; 5410 } 5411 onBeginBatchEdit(); 5412 } 5413 } 5414 } 5415 5416 public void endBatchEdit() { 5417 mInBatchEditControllers = false; 5418 final InputMethodState ims = mInputMethodState; 5419 if (ims != null) { 5420 int nesting = --ims.mBatchEditNesting; 5421 if (nesting == 0) { 5422 finishBatchEdit(ims); 5423 } 5424 } 5425 } 5426 5427 void ensureEndedBatchEdit() { 5428 final InputMethodState ims = mInputMethodState; 5429 if (ims != null && ims.mBatchEditNesting != 0) { 5430 ims.mBatchEditNesting = 0; 5431 finishBatchEdit(ims); 5432 } 5433 } 5434 5435 void finishBatchEdit(final InputMethodState ims) { 5436 onEndBatchEdit(); 5437 5438 if (ims.mContentChanged || ims.mSelectionModeChanged) { 5439 updateAfterEdit(); 5440 reportExtractedText(); 5441 } else if (ims.mCursorChanged) { 5442 // Cheezy way to get us to report the current cursor location. 5443 invalidateCursor(); 5444 } 5445 } 5446 5447 void updateAfterEdit() { 5448 invalidate(); 5449 int curs = getSelectionStart(); 5450 5451 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5452 registerForPreDraw(); 5453 } 5454 5455 if (curs >= 0) { 5456 mHighlightPathBogus = true; 5457 makeBlink(); 5458 } 5459 5460 checkForResize(); 5461 } 5462 5463 /** 5464 * Called by the framework in response to a request to begin a batch 5465 * of edit operations through a call to link {@link #beginBatchEdit()}. 5466 */ 5467 public void onBeginBatchEdit() { 5468 // intentionally empty 5469 } 5470 5471 /** 5472 * Called by the framework in response to a request to end a batch 5473 * of edit operations through a call to link {@link #endBatchEdit}. 5474 */ 5475 public void onEndBatchEdit() { 5476 // intentionally empty 5477 } 5478 5479 /** 5480 * Called by the framework in response to a private command from the 5481 * current method, provided by it calling 5482 * {@link InputConnection#performPrivateCommand 5483 * InputConnection.performPrivateCommand()}. 5484 * 5485 * @param action The action name of the command. 5486 * @param data Any additional data for the command. This may be null. 5487 * @return Return true if you handled the command, else false. 5488 */ 5489 public boolean onPrivateIMECommand(String action, Bundle data) { 5490 return false; 5491 } 5492 5493 private void nullLayouts() { 5494 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 5495 mSavedLayout = (BoringLayout) mLayout; 5496 } 5497 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 5498 mSavedHintLayout = (BoringLayout) mHintLayout; 5499 } 5500 5501 mLayout = mHintLayout = null; 5502 5503 // Since it depends on the value of mLayout 5504 prepareCursorControllers(); 5505 } 5506 5507 /** 5508 * Make a new Layout based on the already-measured size of the view, 5509 * on the assumption that it was measured correctly at some point. 5510 */ 5511 private void assumeLayout() { 5512 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5513 5514 if (width < 1) { 5515 width = 0; 5516 } 5517 5518 int physicalWidth = width; 5519 5520 if (mHorizontallyScrolling) { 5521 width = VERY_WIDE; 5522 } 5523 5524 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 5525 physicalWidth, false); 5526 } 5527 5528 /** 5529 * The width passed in is now the desired layout width, 5530 * not the full view width with padding. 5531 * {@hide} 5532 */ 5533 protected void makeNewLayout(int w, int hintWidth, 5534 BoringLayout.Metrics boring, 5535 BoringLayout.Metrics hintBoring, 5536 int ellipsisWidth, boolean bringIntoView) { 5537 stopMarquee(); 5538 5539 mHighlightPathBogus = true; 5540 5541 if (w < 0) { 5542 w = 0; 5543 } 5544 if (hintWidth < 0) { 5545 hintWidth = 0; 5546 } 5547 5548 Layout.Alignment alignment; 5549 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, isLayoutRtl()); 5550 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 5551 case Gravity.CENTER_HORIZONTAL: 5552 alignment = Layout.Alignment.ALIGN_CENTER; 5553 break; 5554 5555 case Gravity.RIGHT: 5556 // Note, Layout resolves ALIGN_OPPOSITE to left or 5557 // right based on the paragraph direction. 5558 alignment = Layout.Alignment.ALIGN_OPPOSITE; 5559 break; 5560 5561 default: 5562 alignment = Layout.Alignment.ALIGN_NORMAL; 5563 } 5564 5565 boolean shouldEllipsize = mEllipsize != null && mInput == null; 5566 5567 if (mText instanceof Spannable) { 5568 mLayout = new DynamicLayout(mText, mTransformed, mTextPaint, w, 5569 alignment, mSpacingMult, 5570 mSpacingAdd, mIncludePad, mInput == null ? mEllipsize : null, 5571 ellipsisWidth); 5572 } else { 5573 if (boring == UNKNOWN_BORING) { 5574 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mBoring); 5575 if (boring != null) { 5576 mBoring = boring; 5577 } 5578 } 5579 5580 if (boring != null) { 5581 if (boring.width <= w && 5582 (mEllipsize == null || boring.width <= ellipsisWidth)) { 5583 if (mSavedLayout != null) { 5584 mLayout = mSavedLayout. 5585 replaceOrMake(mTransformed, mTextPaint, 5586 w, alignment, mSpacingMult, mSpacingAdd, 5587 boring, mIncludePad); 5588 } else { 5589 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5590 w, alignment, mSpacingMult, mSpacingAdd, 5591 boring, mIncludePad); 5592 } 5593 5594 mSavedLayout = (BoringLayout) mLayout; 5595 } else if (shouldEllipsize && boring.width <= w) { 5596 if (mSavedLayout != null) { 5597 mLayout = mSavedLayout. 5598 replaceOrMake(mTransformed, mTextPaint, 5599 w, alignment, mSpacingMult, mSpacingAdd, 5600 boring, mIncludePad, mEllipsize, 5601 ellipsisWidth); 5602 } else { 5603 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5604 w, alignment, mSpacingMult, mSpacingAdd, 5605 boring, mIncludePad, mEllipsize, 5606 ellipsisWidth); 5607 } 5608 } else if (shouldEllipsize) { 5609 mLayout = new StaticLayout(mTransformed, 5610 0, mTransformed.length(), 5611 mTextPaint, w, alignment, mSpacingMult, 5612 mSpacingAdd, mIncludePad, mEllipsize, 5613 ellipsisWidth); 5614 } else { 5615 mLayout = new StaticLayout(mTransformed, mTextPaint, 5616 w, alignment, mSpacingMult, mSpacingAdd, 5617 mIncludePad); 5618 } 5619 } else if (shouldEllipsize) { 5620 mLayout = new StaticLayout(mTransformed, 5621 0, mTransformed.length(), 5622 mTextPaint, w, alignment, mSpacingMult, 5623 mSpacingAdd, mIncludePad, mEllipsize, 5624 ellipsisWidth); 5625 } else { 5626 mLayout = new StaticLayout(mTransformed, mTextPaint, 5627 w, alignment, mSpacingMult, mSpacingAdd, 5628 mIncludePad); 5629 } 5630 } 5631 5632 shouldEllipsize = mEllipsize != null; 5633 mHintLayout = null; 5634 5635 if (mHint != null) { 5636 if (shouldEllipsize) hintWidth = w; 5637 5638 if (hintBoring == UNKNOWN_BORING) { 5639 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, 5640 mHintBoring); 5641 if (hintBoring != null) { 5642 mHintBoring = hintBoring; 5643 } 5644 } 5645 5646 if (hintBoring != null) { 5647 if (hintBoring.width <= hintWidth && 5648 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 5649 if (mSavedHintLayout != null) { 5650 mHintLayout = mSavedHintLayout. 5651 replaceOrMake(mHint, mTextPaint, 5652 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5653 hintBoring, mIncludePad); 5654 } else { 5655 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5656 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5657 hintBoring, mIncludePad); 5658 } 5659 5660 mSavedHintLayout = (BoringLayout) mHintLayout; 5661 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 5662 if (mSavedHintLayout != null) { 5663 mHintLayout = mSavedHintLayout. 5664 replaceOrMake(mHint, mTextPaint, 5665 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5666 hintBoring, mIncludePad, mEllipsize, 5667 ellipsisWidth); 5668 } else { 5669 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5670 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5671 hintBoring, mIncludePad, mEllipsize, 5672 ellipsisWidth); 5673 } 5674 } else if (shouldEllipsize) { 5675 mHintLayout = new StaticLayout(mHint, 5676 0, mHint.length(), 5677 mTextPaint, hintWidth, alignment, mSpacingMult, 5678 mSpacingAdd, mIncludePad, mEllipsize, 5679 ellipsisWidth); 5680 } else { 5681 mHintLayout = new StaticLayout(mHint, mTextPaint, 5682 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5683 mIncludePad); 5684 } 5685 } else if (shouldEllipsize) { 5686 mHintLayout = new StaticLayout(mHint, 5687 0, mHint.length(), 5688 mTextPaint, hintWidth, alignment, mSpacingMult, 5689 mSpacingAdd, mIncludePad, mEllipsize, 5690 ellipsisWidth); 5691 } else { 5692 mHintLayout = new StaticLayout(mHint, mTextPaint, 5693 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5694 mIncludePad); 5695 } 5696 } 5697 5698 if (bringIntoView) { 5699 registerForPreDraw(); 5700 } 5701 5702 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 5703 if (!compressText(ellipsisWidth)) { 5704 final int height = mLayoutParams.height; 5705 // If the size of the view does not depend on the size of the text, try to 5706 // start the marquee immediately 5707 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 5708 startMarquee(); 5709 } else { 5710 // Defer the start of the marquee until we know our width (see setFrame()) 5711 mRestartMarquee = true; 5712 } 5713 } 5714 } 5715 5716 // CursorControllers need a non-null mLayout 5717 prepareCursorControllers(); 5718 } 5719 5720 private boolean compressText(float width) { 5721 if (isHardwareAccelerated()) return false; 5722 5723 // Only compress the text if it hasn't been compressed by the previous pass 5724 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 5725 mTextPaint.getTextScaleX() == 1.0f) { 5726 final float textWidth = mLayout.getLineWidth(0); 5727 final float overflow = (textWidth + 1.0f - width) / width; 5728 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 5729 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 5730 post(new Runnable() { 5731 public void run() { 5732 requestLayout(); 5733 } 5734 }); 5735 return true; 5736 } 5737 } 5738 5739 return false; 5740 } 5741 5742 private static int desired(Layout layout) { 5743 int n = layout.getLineCount(); 5744 CharSequence text = layout.getText(); 5745 float max = 0; 5746 5747 // if any line was wrapped, we can't use it. 5748 // but it's ok for the last line not to have a newline 5749 5750 for (int i = 0; i < n - 1; i++) { 5751 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 5752 return -1; 5753 } 5754 5755 for (int i = 0; i < n; i++) { 5756 max = Math.max(max, layout.getLineWidth(i)); 5757 } 5758 5759 return (int) FloatMath.ceil(max); 5760 } 5761 5762 /** 5763 * Set whether the TextView includes extra top and bottom padding to make 5764 * room for accents that go above the normal ascent and descent. 5765 * The default is true. 5766 * 5767 * @attr ref android.R.styleable#TextView_includeFontPadding 5768 */ 5769 public void setIncludeFontPadding(boolean includepad) { 5770 mIncludePad = includepad; 5771 5772 if (mLayout != null) { 5773 nullLayouts(); 5774 requestLayout(); 5775 invalidate(); 5776 } 5777 } 5778 5779 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 5780 5781 @Override 5782 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 5783 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 5784 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 5785 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 5786 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 5787 5788 int width; 5789 int height; 5790 5791 BoringLayout.Metrics boring = UNKNOWN_BORING; 5792 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 5793 5794 int des = -1; 5795 boolean fromexisting = false; 5796 5797 if (widthMode == MeasureSpec.EXACTLY) { 5798 // Parent has told us how big to be. So be it. 5799 width = widthSize; 5800 } else { 5801 if (mLayout != null && mEllipsize == null) { 5802 des = desired(mLayout); 5803 } 5804 5805 if (des < 0) { 5806 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mBoring); 5807 if (boring != null) { 5808 mBoring = boring; 5809 } 5810 } else { 5811 fromexisting = true; 5812 } 5813 5814 if (boring == null || boring == UNKNOWN_BORING) { 5815 if (des < 0) { 5816 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 5817 } 5818 5819 width = des; 5820 } else { 5821 width = boring.width; 5822 } 5823 5824 final Drawables dr = mDrawables; 5825 if (dr != null) { 5826 width = Math.max(width, dr.mDrawableWidthTop); 5827 width = Math.max(width, dr.mDrawableWidthBottom); 5828 } 5829 5830 if (mHint != null) { 5831 int hintDes = -1; 5832 int hintWidth; 5833 5834 if (mHintLayout != null && mEllipsize == null) { 5835 hintDes = desired(mHintLayout); 5836 } 5837 5838 if (hintDes < 0) { 5839 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 5840 if (hintBoring != null) { 5841 mHintBoring = hintBoring; 5842 } 5843 } 5844 5845 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 5846 if (hintDes < 0) { 5847 hintDes = (int) FloatMath.ceil( 5848 Layout.getDesiredWidth(mHint, mTextPaint)); 5849 } 5850 5851 hintWidth = hintDes; 5852 } else { 5853 hintWidth = hintBoring.width; 5854 } 5855 5856 if (hintWidth > width) { 5857 width = hintWidth; 5858 } 5859 } 5860 5861 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 5862 5863 if (mMaxWidthMode == EMS) { 5864 width = Math.min(width, mMaxWidth * getLineHeight()); 5865 } else { 5866 width = Math.min(width, mMaxWidth); 5867 } 5868 5869 if (mMinWidthMode == EMS) { 5870 width = Math.max(width, mMinWidth * getLineHeight()); 5871 } else { 5872 width = Math.max(width, mMinWidth); 5873 } 5874 5875 // Check against our minimum width 5876 width = Math.max(width, getSuggestedMinimumWidth()); 5877 5878 if (widthMode == MeasureSpec.AT_MOST) { 5879 width = Math.min(widthSize, width); 5880 } 5881 } 5882 5883 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5884 int unpaddedWidth = want; 5885 5886 if (mHorizontallyScrolling) want = VERY_WIDE; 5887 5888 int hintWant = want; 5889 int hintWidth = mHintLayout == null ? hintWant : mHintLayout.getWidth(); 5890 5891 if (mLayout == null) { 5892 makeNewLayout(want, hintWant, boring, hintBoring, 5893 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5894 } else if ((mLayout.getWidth() != want) || (hintWidth != hintWant) || 5895 (mLayout.getEllipsizedWidth() != 5896 width - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 5897 if (mHint == null && mEllipsize == null && 5898 want > mLayout.getWidth() && 5899 (mLayout instanceof BoringLayout || 5900 (fromexisting && des >= 0 && des <= want))) { 5901 mLayout.increaseWidthTo(want); 5902 } else { 5903 makeNewLayout(want, hintWant, boring, hintBoring, 5904 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5905 } 5906 } else { 5907 // Width has not changed. 5908 } 5909 5910 if (heightMode == MeasureSpec.EXACTLY) { 5911 // Parent has told us how big to be. So be it. 5912 height = heightSize; 5913 mDesiredHeightAtMeasure = -1; 5914 } else { 5915 int desired = getDesiredHeight(); 5916 5917 height = desired; 5918 mDesiredHeightAtMeasure = desired; 5919 5920 if (heightMode == MeasureSpec.AT_MOST) { 5921 height = Math.min(desired, heightSize); 5922 } 5923 } 5924 5925 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 5926 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 5927 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 5928 } 5929 5930 /* 5931 * We didn't let makeNewLayout() register to bring the cursor into view, 5932 * so do it here if there is any possibility that it is needed. 5933 */ 5934 if (mMovement != null || 5935 mLayout.getWidth() > unpaddedWidth || 5936 mLayout.getHeight() > unpaddedHeight) { 5937 registerForPreDraw(); 5938 } else { 5939 scrollTo(0, 0); 5940 } 5941 5942 setMeasuredDimension(width, height); 5943 } 5944 5945 private int getDesiredHeight() { 5946 return Math.max( 5947 getDesiredHeight(mLayout, true), 5948 getDesiredHeight(mHintLayout, mEllipsize != null)); 5949 } 5950 5951 private int getDesiredHeight(Layout layout, boolean cap) { 5952 if (layout == null) { 5953 return 0; 5954 } 5955 5956 int linecount = layout.getLineCount(); 5957 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 5958 int desired = layout.getLineTop(linecount); 5959 5960 final Drawables dr = mDrawables; 5961 if (dr != null) { 5962 desired = Math.max(desired, dr.mDrawableHeightLeft); 5963 desired = Math.max(desired, dr.mDrawableHeightRight); 5964 } 5965 5966 desired += pad; 5967 layout.setMaximumVisibleLineCount(0); 5968 5969 if (mMaxMode == LINES) { 5970 /* 5971 * Don't cap the hint to a certain number of lines. 5972 * (Do cap it, though, if we have a maximum pixel height.) 5973 */ 5974 if (cap) { 5975 if (linecount > mMaximum) { 5976 layout.setMaximumVisibleLineCount(mMaximum); 5977 desired = layout.getLineTop(mMaximum); 5978 5979 if (dr != null) { 5980 desired = Math.max(desired, dr.mDrawableHeightLeft); 5981 desired = Math.max(desired, dr.mDrawableHeightRight); 5982 } 5983 5984 desired += pad; 5985 linecount = mMaximum; 5986 } 5987 } 5988 } else { 5989 desired = Math.min(desired, mMaximum); 5990 } 5991 5992 if (mMinMode == LINES) { 5993 if (linecount < mMinimum) { 5994 desired += getLineHeight() * (mMinimum - linecount); 5995 } 5996 } else { 5997 desired = Math.max(desired, mMinimum); 5998 } 5999 6000 // Check against our minimum height 6001 desired = Math.max(desired, getSuggestedMinimumHeight()); 6002 6003 return desired; 6004 } 6005 6006 /** 6007 * Check whether a change to the existing text layout requires a 6008 * new view layout. 6009 */ 6010 private void checkForResize() { 6011 boolean sizeChanged = false; 6012 6013 if (mLayout != null) { 6014 // Check if our width changed 6015 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 6016 sizeChanged = true; 6017 invalidate(); 6018 } 6019 6020 // Check if our height changed 6021 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 6022 int desiredHeight = getDesiredHeight(); 6023 6024 if (desiredHeight != this.getHeight()) { 6025 sizeChanged = true; 6026 } 6027 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 6028 if (mDesiredHeightAtMeasure >= 0) { 6029 int desiredHeight = getDesiredHeight(); 6030 6031 if (desiredHeight != mDesiredHeightAtMeasure) { 6032 sizeChanged = true; 6033 } 6034 } 6035 } 6036 } 6037 6038 if (sizeChanged) { 6039 requestLayout(); 6040 // caller will have already invalidated 6041 } 6042 } 6043 6044 /** 6045 * Check whether entirely new text requires a new view layout 6046 * or merely a new text layout. 6047 */ 6048 private void checkForRelayout() { 6049 // If we have a fixed width, we can just swap in a new text layout 6050 // if the text height stays the same or if the view height is fixed. 6051 6052 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 6053 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 6054 (mHint == null || mHintLayout != null) && 6055 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 6056 // Static width, so try making a new text layout. 6057 6058 int oldht = mLayout.getHeight(); 6059 int want = mLayout.getWidth(); 6060 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 6061 6062 /* 6063 * No need to bring the text into view, since the size is not 6064 * changing (unless we do the requestLayout(), in which case it 6065 * will happen at measure). 6066 */ 6067 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 6068 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 6069 false); 6070 6071 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 6072 // In a fixed-height view, so use our new text layout. 6073 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 6074 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 6075 invalidate(); 6076 return; 6077 } 6078 6079 // Dynamic height, but height has stayed the same, 6080 // so use our new text layout. 6081 if (mLayout.getHeight() == oldht && 6082 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 6083 invalidate(); 6084 return; 6085 } 6086 } 6087 6088 // We lose: the height has changed and we have a dynamic height. 6089 // Request a new view layout using our new text layout. 6090 requestLayout(); 6091 invalidate(); 6092 } else { 6093 // Dynamic width, so we have no choice but to request a new 6094 // view layout with a new text layout. 6095 6096 nullLayouts(); 6097 requestLayout(); 6098 invalidate(); 6099 } 6100 } 6101 6102 /** 6103 * Returns true if anything changed. 6104 */ 6105 private boolean bringTextIntoView() { 6106 int line = 0; 6107 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6108 line = mLayout.getLineCount() - 1; 6109 } 6110 6111 Layout.Alignment a = mLayout.getParagraphAlignment(line); 6112 int dir = mLayout.getParagraphDirection(line); 6113 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6114 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6115 int ht = mLayout.getHeight(); 6116 6117 int scrollx, scrolly; 6118 6119 if (a == Layout.Alignment.ALIGN_CENTER) { 6120 /* 6121 * Keep centered if possible, or, if it is too wide to fit, 6122 * keep leading edge in view. 6123 */ 6124 6125 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6126 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6127 6128 if (right - left < hspace) { 6129 scrollx = (right + left) / 2 - hspace / 2; 6130 } else { 6131 if (dir < 0) { 6132 scrollx = right - hspace; 6133 } else { 6134 scrollx = left; 6135 } 6136 } 6137 } else if (a == Layout.Alignment.ALIGN_NORMAL) { 6138 /* 6139 * Keep leading edge in view. 6140 */ 6141 6142 if (dir < 0) { 6143 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6144 scrollx = right - hspace; 6145 } else { 6146 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6147 } 6148 } else /* a == Layout.Alignment.ALIGN_OPPOSITE */ { 6149 /* 6150 * Keep trailing edge in view. 6151 */ 6152 6153 if (dir < 0) { 6154 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6155 } else { 6156 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6157 scrollx = right - hspace; 6158 } 6159 } 6160 6161 if (ht < vspace) { 6162 scrolly = 0; 6163 } else { 6164 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6165 scrolly = ht - vspace; 6166 } else { 6167 scrolly = 0; 6168 } 6169 } 6170 6171 if (scrollx != mScrollX || scrolly != mScrollY) { 6172 scrollTo(scrollx, scrolly); 6173 return true; 6174 } else { 6175 return false; 6176 } 6177 } 6178 6179 /** 6180 * Move the point, specified by the offset, into the view if it is needed. 6181 * This has to be called after layout. Returns true if anything changed. 6182 */ 6183 public boolean bringPointIntoView(int offset) { 6184 boolean changed = false; 6185 6186 int line = mLayout.getLineForOffset(offset); 6187 6188 // FIXME: Is it okay to truncate this, or should we round? 6189 final int x = (int)mLayout.getPrimaryHorizontal(offset); 6190 final int top = mLayout.getLineTop(line); 6191 final int bottom = mLayout.getLineTop(line + 1); 6192 6193 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6194 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6195 int ht = mLayout.getHeight(); 6196 6197 int grav; 6198 6199 switch (mLayout.getParagraphAlignment(line)) { 6200 case ALIGN_NORMAL: 6201 grav = 1; 6202 break; 6203 6204 case ALIGN_OPPOSITE: 6205 grav = -1; 6206 break; 6207 6208 default: 6209 grav = 0; 6210 } 6211 6212 grav *= mLayout.getParagraphDirection(line); 6213 6214 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6215 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6216 6217 int hslack = (bottom - top) / 2; 6218 int vslack = hslack; 6219 6220 if (vslack > vspace / 4) 6221 vslack = vspace / 4; 6222 if (hslack > hspace / 4) 6223 hslack = hspace / 4; 6224 6225 int hs = mScrollX; 6226 int vs = mScrollY; 6227 6228 if (top - vs < vslack) 6229 vs = top - vslack; 6230 if (bottom - vs > vspace - vslack) 6231 vs = bottom - (vspace - vslack); 6232 if (ht - vs < vspace) 6233 vs = ht - vspace; 6234 if (0 - vs > 0) 6235 vs = 0; 6236 6237 if (grav != 0) { 6238 if (x - hs < hslack) { 6239 hs = x - hslack; 6240 } 6241 if (x - hs > hspace - hslack) { 6242 hs = x - (hspace - hslack); 6243 } 6244 } 6245 6246 if (grav < 0) { 6247 if (left - hs > 0) 6248 hs = left; 6249 if (right - hs < hspace) 6250 hs = right - hspace; 6251 } else if (grav > 0) { 6252 if (right - hs < hspace) 6253 hs = right - hspace; 6254 if (left - hs > 0) 6255 hs = left; 6256 } else /* grav == 0 */ { 6257 if (right - left <= hspace) { 6258 /* 6259 * If the entire text fits, center it exactly. 6260 */ 6261 hs = left - (hspace - (right - left)) / 2; 6262 } else if (x > right - hslack) { 6263 /* 6264 * If we are near the right edge, keep the right edge 6265 * at the edge of the view. 6266 */ 6267 hs = right - hspace; 6268 } else if (x < left + hslack) { 6269 /* 6270 * If we are near the left edge, keep the left edge 6271 * at the edge of the view. 6272 */ 6273 hs = left; 6274 } else if (left > hs) { 6275 /* 6276 * Is there whitespace visible at the left? Fix it if so. 6277 */ 6278 hs = left; 6279 } else if (right < hs + hspace) { 6280 /* 6281 * Is there whitespace visible at the right? Fix it if so. 6282 */ 6283 hs = right - hspace; 6284 } else { 6285 /* 6286 * Otherwise, float as needed. 6287 */ 6288 if (x - hs < hslack) { 6289 hs = x - hslack; 6290 } 6291 if (x - hs > hspace - hslack) { 6292 hs = x - (hspace - hslack); 6293 } 6294 } 6295 } 6296 6297 if (hs != mScrollX || vs != mScrollY) { 6298 if (mScroller == null) { 6299 scrollTo(hs, vs); 6300 } else { 6301 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 6302 int dx = hs - mScrollX; 6303 int dy = vs - mScrollY; 6304 6305 if (duration > ANIMATED_SCROLL_GAP) { 6306 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 6307 awakenScrollBars(mScroller.getDuration()); 6308 invalidate(); 6309 } else { 6310 if (!mScroller.isFinished()) { 6311 mScroller.abortAnimation(); 6312 } 6313 6314 scrollBy(dx, dy); 6315 } 6316 6317 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 6318 } 6319 6320 changed = true; 6321 } 6322 6323 if (isFocused()) { 6324 // This offsets because getInterestingRect() is in terms of viewport coordinates, but 6325 // requestRectangleOnScreen() is in terms of content coordinates. 6326 6327 if (mTempRect == null) mTempRect = new Rect(); 6328 mTempRect.set(x, top, x + 1, bottom); 6329 getInterestingRect(mTempRect, line); 6330 mTempRect.offset(mScrollX, mScrollY); 6331 6332 if (requestRectangleOnScreen(mTempRect)) { 6333 changed = true; 6334 } 6335 } 6336 6337 return changed; 6338 } 6339 6340 /** 6341 * Move the cursor, if needed, so that it is at an offset that is visible 6342 * to the user. This will not move the cursor if it represents more than 6343 * one character (a selection range). This will only work if the 6344 * TextView contains spannable text; otherwise it will do nothing. 6345 * 6346 * @return True if the cursor was actually moved, false otherwise. 6347 */ 6348 public boolean moveCursorToVisibleOffset() { 6349 if (!(mText instanceof Spannable)) { 6350 return false; 6351 } 6352 int start = getSelectionStart(); 6353 int end = getSelectionEnd(); 6354 if (start != end) { 6355 return false; 6356 } 6357 6358 // First: make sure the line is visible on screen: 6359 6360 int line = mLayout.getLineForOffset(start); 6361 6362 final int top = mLayout.getLineTop(line); 6363 final int bottom = mLayout.getLineTop(line + 1); 6364 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6365 int vslack = (bottom - top) / 2; 6366 if (vslack > vspace / 4) 6367 vslack = vspace / 4; 6368 final int vs = mScrollY; 6369 6370 if (top < (vs+vslack)) { 6371 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 6372 } else if (bottom > (vspace+vs-vslack)) { 6373 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 6374 } 6375 6376 // Next: make sure the character is visible on screen: 6377 6378 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6379 final int hs = mScrollX; 6380 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 6381 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 6382 6383 // line might contain bidirectional text 6384 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 6385 final int highChar = leftChar > rightChar ? leftChar : rightChar; 6386 6387 int newStart = start; 6388 if (newStart < lowChar) { 6389 newStart = lowChar; 6390 } else if (newStart > highChar) { 6391 newStart = highChar; 6392 } 6393 6394 if (newStart != start) { 6395 Selection.setSelection((Spannable)mText, newStart); 6396 return true; 6397 } 6398 6399 return false; 6400 } 6401 6402 @Override 6403 public void computeScroll() { 6404 if (mScroller != null) { 6405 if (mScroller.computeScrollOffset()) { 6406 mScrollX = mScroller.getCurrX(); 6407 mScrollY = mScroller.getCurrY(); 6408 invalidateParentCaches(); 6409 postInvalidate(); // So we draw again 6410 } 6411 } 6412 } 6413 6414 private void getInterestingRect(Rect r, int line) { 6415 convertFromViewportToContentCoordinates(r); 6416 6417 // Rectangle can can be expanded on first and last line to take 6418 // padding into account. 6419 // TODO Take left/right padding into account too? 6420 if (line == 0) r.top -= getExtendedPaddingTop(); 6421 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 6422 } 6423 6424 private void convertFromViewportToContentCoordinates(Rect r) { 6425 final int horizontalOffset = viewportToContentHorizontalOffset(); 6426 r.left += horizontalOffset; 6427 r.right += horizontalOffset; 6428 6429 final int verticalOffset = viewportToContentVerticalOffset(); 6430 r.top += verticalOffset; 6431 r.bottom += verticalOffset; 6432 } 6433 6434 private int viewportToContentHorizontalOffset() { 6435 return getCompoundPaddingLeft() - mScrollX; 6436 } 6437 6438 private int viewportToContentVerticalOffset() { 6439 int offset = getExtendedPaddingTop() - mScrollY; 6440 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 6441 offset += getVerticalOffset(false); 6442 } 6443 return offset; 6444 } 6445 6446 @Override 6447 public void debug(int depth) { 6448 super.debug(depth); 6449 6450 String output = debugIndent(depth); 6451 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 6452 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 6453 + "} "; 6454 6455 if (mText != null) { 6456 6457 output += "mText=\"" + mText + "\" "; 6458 if (mLayout != null) { 6459 output += "mLayout width=" + mLayout.getWidth() 6460 + " height=" + mLayout.getHeight(); 6461 } 6462 } else { 6463 output += "mText=NULL"; 6464 } 6465 Log.d(VIEW_LOG_TAG, output); 6466 } 6467 6468 /** 6469 * Convenience for {@link Selection#getSelectionStart}. 6470 */ 6471 @ViewDebug.ExportedProperty(category = "text") 6472 public int getSelectionStart() { 6473 return Selection.getSelectionStart(getText()); 6474 } 6475 6476 /** 6477 * Convenience for {@link Selection#getSelectionEnd}. 6478 */ 6479 @ViewDebug.ExportedProperty(category = "text") 6480 public int getSelectionEnd() { 6481 return Selection.getSelectionEnd(getText()); 6482 } 6483 6484 /** 6485 * Return true iff there is a selection inside this text view. 6486 */ 6487 public boolean hasSelection() { 6488 final int selectionStart = getSelectionStart(); 6489 final int selectionEnd = getSelectionEnd(); 6490 6491 return selectionStart >= 0 && selectionStart != selectionEnd; 6492 } 6493 6494 /** 6495 * Sets the properties of this field (lines, horizontally scrolling, 6496 * transformation method) to be for a single-line input. 6497 * 6498 * @attr ref android.R.styleable#TextView_singleLine 6499 */ 6500 public void setSingleLine() { 6501 setSingleLine(true); 6502 } 6503 6504 /** 6505 * If true, sets the properties of this field (number of lines, horizontally scrolling, 6506 * transformation method) to be for a single-line input; if false, restores these to the default 6507 * conditions. 6508 * 6509 * Note that the default conditions are not necessarily those that were in effect prior this 6510 * method, and you may want to reset these properties to your custom values. 6511 * 6512 * @attr ref android.R.styleable#TextView_singleLine 6513 */ 6514 @android.view.RemotableViewMethod 6515 public void setSingleLine(boolean singleLine) { 6516 // Could be used, but may break backward compatibility. 6517 // if (mSingleLine == singleLine) return; 6518 setInputTypeSingleLine(singleLine); 6519 applySingleLine(singleLine, true, true); 6520 } 6521 6522 /** 6523 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 6524 * @param singleLine 6525 */ 6526 private void setInputTypeSingleLine(boolean singleLine) { 6527 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 6528 if (singleLine) { 6529 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6530 } else { 6531 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6532 } 6533 } 6534 } 6535 6536 private void applySingleLine(boolean singleLine, boolean applyTransformation, 6537 boolean changeMaxLines) { 6538 mSingleLine = singleLine; 6539 if (singleLine) { 6540 setLines(1); 6541 setHorizontallyScrolling(true); 6542 if (applyTransformation) { 6543 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 6544 } 6545 } else { 6546 if (changeMaxLines) { 6547 setMaxLines(Integer.MAX_VALUE); 6548 } 6549 setHorizontallyScrolling(false); 6550 if (applyTransformation) { 6551 setTransformationMethod(null); 6552 } 6553 } 6554 } 6555 6556 /** 6557 * Causes words in the text that are longer than the view is wide 6558 * to be ellipsized instead of broken in the middle. You may also 6559 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 6560 * to constrain the text to a single line. Use <code>null</code> 6561 * to turn off ellipsizing. 6562 * 6563 * @attr ref android.R.styleable#TextView_ellipsize 6564 */ 6565 public void setEllipsize(TextUtils.TruncateAt where) { 6566 mEllipsize = where; 6567 6568 if (mLayout != null) { 6569 nullLayouts(); 6570 requestLayout(); 6571 invalidate(); 6572 } 6573 } 6574 6575 /** 6576 * Sets how many times to repeat the marquee animation. Only applied if the 6577 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 6578 * 6579 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 6580 */ 6581 public void setMarqueeRepeatLimit(int marqueeLimit) { 6582 mMarqueeRepeatLimit = marqueeLimit; 6583 } 6584 6585 /** 6586 * Returns where, if anywhere, words that are longer than the view 6587 * is wide should be ellipsized. 6588 */ 6589 @ViewDebug.ExportedProperty 6590 public TextUtils.TruncateAt getEllipsize() { 6591 return mEllipsize; 6592 } 6593 6594 /** 6595 * Set the TextView so that when it takes focus, all the text is 6596 * selected. 6597 * 6598 * @attr ref android.R.styleable#TextView_selectAllOnFocus 6599 */ 6600 @android.view.RemotableViewMethod 6601 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 6602 mSelectAllOnFocus = selectAllOnFocus; 6603 6604 if (selectAllOnFocus && !(mText instanceof Spannable)) { 6605 setText(mText, BufferType.SPANNABLE); 6606 } 6607 } 6608 6609 /** 6610 * Set whether the cursor is visible. The default is true. 6611 * 6612 * @attr ref android.R.styleable#TextView_cursorVisible 6613 */ 6614 @android.view.RemotableViewMethod 6615 public void setCursorVisible(boolean visible) { 6616 if (mCursorVisible != visible) { 6617 mCursorVisible = visible; 6618 invalidate(); 6619 6620 makeBlink(); 6621 6622 // InsertionPointCursorController depends on mCursorVisible 6623 prepareCursorControllers(); 6624 } 6625 } 6626 6627 private boolean isCursorVisible() { 6628 return mCursorVisible && isTextEditable(); 6629 } 6630 6631 private boolean canMarquee() { 6632 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6633 return width > 0 && mLayout.getLineWidth(0) > width; 6634 } 6635 6636 private void startMarquee() { 6637 // Do not ellipsize EditText 6638 if (mInput != null) return; 6639 6640 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 6641 return; 6642 } 6643 6644 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 6645 getLineCount() == 1 && canMarquee()) { 6646 6647 if (mMarquee == null) mMarquee = new Marquee(this); 6648 mMarquee.start(mMarqueeRepeatLimit); 6649 } 6650 } 6651 6652 private void stopMarquee() { 6653 if (mMarquee != null && !mMarquee.isStopped()) { 6654 mMarquee.stop(); 6655 } 6656 } 6657 6658 private void startStopMarquee(boolean start) { 6659 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6660 if (start) { 6661 startMarquee(); 6662 } else { 6663 stopMarquee(); 6664 } 6665 } 6666 } 6667 6668 private static final class Marquee extends Handler { 6669 // TODO: Add an option to configure this 6670 private static final float MARQUEE_DELTA_MAX = 0.07f; 6671 private static final int MARQUEE_DELAY = 1200; 6672 private static final int MARQUEE_RESTART_DELAY = 1200; 6673 private static final int MARQUEE_RESOLUTION = 1000 / 30; 6674 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 6675 6676 private static final byte MARQUEE_STOPPED = 0x0; 6677 private static final byte MARQUEE_STARTING = 0x1; 6678 private static final byte MARQUEE_RUNNING = 0x2; 6679 6680 private static final int MESSAGE_START = 0x1; 6681 private static final int MESSAGE_TICK = 0x2; 6682 private static final int MESSAGE_RESTART = 0x3; 6683 6684 private final WeakReference<TextView> mView; 6685 6686 private byte mStatus = MARQUEE_STOPPED; 6687 private final float mScrollUnit; 6688 private float mMaxScroll; 6689 float mMaxFadeScroll; 6690 private float mGhostStart; 6691 private float mGhostOffset; 6692 private float mFadeStop; 6693 private int mRepeatLimit; 6694 6695 float mScroll; 6696 6697 Marquee(TextView v) { 6698 final float density = v.getContext().getResources().getDisplayMetrics().density; 6699 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 6700 mView = new WeakReference<TextView>(v); 6701 } 6702 6703 @Override 6704 public void handleMessage(Message msg) { 6705 switch (msg.what) { 6706 case MESSAGE_START: 6707 mStatus = MARQUEE_RUNNING; 6708 tick(); 6709 break; 6710 case MESSAGE_TICK: 6711 tick(); 6712 break; 6713 case MESSAGE_RESTART: 6714 if (mStatus == MARQUEE_RUNNING) { 6715 if (mRepeatLimit >= 0) { 6716 mRepeatLimit--; 6717 } 6718 start(mRepeatLimit); 6719 } 6720 break; 6721 } 6722 } 6723 6724 void tick() { 6725 if (mStatus != MARQUEE_RUNNING) { 6726 return; 6727 } 6728 6729 removeMessages(MESSAGE_TICK); 6730 6731 final TextView textView = mView.get(); 6732 if (textView != null && (textView.isFocused() || textView.isSelected())) { 6733 mScroll += mScrollUnit; 6734 if (mScroll > mMaxScroll) { 6735 mScroll = mMaxScroll; 6736 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 6737 } else { 6738 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 6739 } 6740 textView.invalidate(); 6741 } 6742 } 6743 6744 void stop() { 6745 mStatus = MARQUEE_STOPPED; 6746 removeMessages(MESSAGE_START); 6747 removeMessages(MESSAGE_RESTART); 6748 removeMessages(MESSAGE_TICK); 6749 resetScroll(); 6750 } 6751 6752 private void resetScroll() { 6753 mScroll = 0.0f; 6754 final TextView textView = mView.get(); 6755 if (textView != null) textView.invalidate(); 6756 } 6757 6758 void start(int repeatLimit) { 6759 if (repeatLimit == 0) { 6760 stop(); 6761 return; 6762 } 6763 mRepeatLimit = repeatLimit; 6764 final TextView textView = mView.get(); 6765 if (textView != null && textView.mLayout != null) { 6766 mStatus = MARQUEE_STARTING; 6767 mScroll = 0.0f; 6768 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 6769 textView.getCompoundPaddingRight(); 6770 final float lineWidth = textView.mLayout.getLineWidth(0); 6771 final float gap = textWidth / 3.0f; 6772 mGhostStart = lineWidth - textWidth + gap; 6773 mMaxScroll = mGhostStart + textWidth; 6774 mGhostOffset = lineWidth + gap; 6775 mFadeStop = lineWidth + textWidth / 6.0f; 6776 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 6777 6778 textView.invalidate(); 6779 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 6780 } 6781 } 6782 6783 float getGhostOffset() { 6784 return mGhostOffset; 6785 } 6786 6787 boolean shouldDrawLeftFade() { 6788 return mScroll <= mFadeStop; 6789 } 6790 6791 boolean shouldDrawGhost() { 6792 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 6793 } 6794 6795 boolean isRunning() { 6796 return mStatus == MARQUEE_RUNNING; 6797 } 6798 6799 boolean isStopped() { 6800 return mStatus == MARQUEE_STOPPED; 6801 } 6802 } 6803 6804 /** 6805 * This method is called when the text is changed, in case any subclasses 6806 * would like to know. 6807 * 6808 * Within <code>text</code>, the <code>lengthAfter</code> characters 6809 * beginning at <code>start</code> have just replaced old text that had 6810 * length <code>lengthBefore</code>. It is an error to attempt to make 6811 * changes to <code>text</code> from this callback. 6812 * 6813 * @param text The text the TextView is displaying 6814 * @param start The offset of the start of the range of the text that was 6815 * modified 6816 * @param lengthBefore The length of the former text that has been replaced 6817 * @param lengthAfter The length of the replacement modified text 6818 */ 6819 protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { 6820 // intentionally empty 6821 } 6822 6823 /** 6824 * This method is called when the selection has changed, in case any 6825 * subclasses would like to know. 6826 * 6827 * @param selStart The new selection start location. 6828 * @param selEnd The new selection end location. 6829 */ 6830 protected void onSelectionChanged(int selStart, int selEnd) { 6831 // intentionally empty 6832 } 6833 6834 /** 6835 * Adds a TextWatcher to the list of those whose methods are called 6836 * whenever this TextView's text changes. 6837 * <p> 6838 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 6839 * not called after {@link #setText} calls. Now, doing {@link #setText} 6840 * if there are any text changed listeners forces the buffer type to 6841 * Editable if it would not otherwise be and does call this method. 6842 */ 6843 public void addTextChangedListener(TextWatcher watcher) { 6844 if (mListeners == null) { 6845 mListeners = new ArrayList<TextWatcher>(); 6846 } 6847 6848 mListeners.add(watcher); 6849 } 6850 6851 /** 6852 * Removes the specified TextWatcher from the list of those whose 6853 * methods are called 6854 * whenever this TextView's text changes. 6855 */ 6856 public void removeTextChangedListener(TextWatcher watcher) { 6857 if (mListeners != null) { 6858 int i = mListeners.indexOf(watcher); 6859 6860 if (i >= 0) { 6861 mListeners.remove(i); 6862 } 6863 } 6864 } 6865 6866 private void sendBeforeTextChanged(CharSequence text, int start, int before, 6867 int after) { 6868 if (mListeners != null) { 6869 final ArrayList<TextWatcher> list = mListeners; 6870 final int count = list.size(); 6871 for (int i = 0; i < count; i++) { 6872 list.get(i).beforeTextChanged(text, start, before, after); 6873 } 6874 } 6875 } 6876 6877 /** 6878 * Not private so it can be called from an inner class without going 6879 * through a thunk. 6880 */ 6881 void sendOnTextChanged(CharSequence text, int start, int before, 6882 int after) { 6883 if (mListeners != null) { 6884 final ArrayList<TextWatcher> list = mListeners; 6885 final int count = list.size(); 6886 for (int i = 0; i < count; i++) { 6887 list.get(i).onTextChanged(text, start, before, after); 6888 } 6889 } 6890 } 6891 6892 /** 6893 * Not private so it can be called from an inner class without going 6894 * through a thunk. 6895 */ 6896 void sendAfterTextChanged(Editable text) { 6897 if (mListeners != null) { 6898 final ArrayList<TextWatcher> list = mListeners; 6899 final int count = list.size(); 6900 for (int i = 0; i < count; i++) { 6901 list.get(i).afterTextChanged(text); 6902 } 6903 } 6904 } 6905 6906 /** 6907 * Not private so it can be called from an inner class without going 6908 * through a thunk. 6909 */ 6910 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 6911 final InputMethodState ims = mInputMethodState; 6912 if (ims == null || ims.mBatchEditNesting == 0) { 6913 updateAfterEdit(); 6914 } 6915 if (ims != null) { 6916 ims.mContentChanged = true; 6917 if (ims.mChangedStart < 0) { 6918 ims.mChangedStart = start; 6919 ims.mChangedEnd = start+before; 6920 } else { 6921 ims.mChangedStart = Math.min(ims.mChangedStart, start); 6922 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 6923 } 6924 ims.mChangedDelta += after-before; 6925 } 6926 6927 sendOnTextChanged(buffer, start, before, after); 6928 onTextChanged(buffer, start, before, after); 6929 6930 // Hide the controllers if the amount of content changed 6931 if (before != after) { 6932 hideControllers(); 6933 } 6934 } 6935 6936 /** 6937 * Not private so it can be called from an inner class without going 6938 * through a thunk. 6939 */ 6940 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 6941 // XXX Make the start and end move together if this ends up 6942 // spending too much time invalidating. 6943 6944 boolean selChanged = false; 6945 int newSelStart=-1, newSelEnd=-1; 6946 6947 final InputMethodState ims = mInputMethodState; 6948 6949 if (what == Selection.SELECTION_END) { 6950 mHighlightPathBogus = true; 6951 selChanged = true; 6952 newSelEnd = newStart; 6953 6954 if (!isFocused()) { 6955 mSelectionMoved = true; 6956 } 6957 6958 if (oldStart >= 0 || newStart >= 0) { 6959 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 6960 registerForPreDraw(); 6961 makeBlink(); 6962 } 6963 } 6964 6965 if (what == Selection.SELECTION_START) { 6966 mHighlightPathBogus = true; 6967 selChanged = true; 6968 newSelStart = newStart; 6969 6970 if (!isFocused()) { 6971 mSelectionMoved = true; 6972 } 6973 6974 if (oldStart >= 0 || newStart >= 0) { 6975 int end = Selection.getSelectionEnd(buf); 6976 invalidateCursor(end, oldStart, newStart); 6977 } 6978 } 6979 6980 if (selChanged) { 6981 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 6982 if (newSelStart < 0) { 6983 newSelStart = Selection.getSelectionStart(buf); 6984 } 6985 if (newSelEnd < 0) { 6986 newSelEnd = Selection.getSelectionEnd(buf); 6987 } 6988 onSelectionChanged(newSelStart, newSelEnd); 6989 } 6990 } 6991 6992 if (what instanceof UpdateAppearance || 6993 what instanceof ParagraphStyle) { 6994 if (ims == null || ims.mBatchEditNesting == 0) { 6995 invalidate(); 6996 mHighlightPathBogus = true; 6997 checkForResize(); 6998 } else { 6999 ims.mContentChanged = true; 7000 } 7001 } 7002 7003 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 7004 mHighlightPathBogus = true; 7005 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 7006 ims.mSelectionModeChanged = true; 7007 } 7008 7009 if (Selection.getSelectionStart(buf) >= 0) { 7010 if (ims == null || ims.mBatchEditNesting == 0) { 7011 invalidateCursor(); 7012 } else { 7013 ims.mCursorChanged = true; 7014 } 7015 } 7016 } 7017 7018 if (what instanceof ParcelableSpan) { 7019 // If this is a span that can be sent to a remote process, 7020 // the current extract editor would be interested in it. 7021 if (ims != null && ims.mExtracting != null) { 7022 if (ims.mBatchEditNesting != 0) { 7023 if (oldStart >= 0) { 7024 if (ims.mChangedStart > oldStart) { 7025 ims.mChangedStart = oldStart; 7026 } 7027 if (ims.mChangedStart > oldEnd) { 7028 ims.mChangedStart = oldEnd; 7029 } 7030 } 7031 if (newStart >= 0) { 7032 if (ims.mChangedStart > newStart) { 7033 ims.mChangedStart = newStart; 7034 } 7035 if (ims.mChangedStart > newEnd) { 7036 ims.mChangedStart = newEnd; 7037 } 7038 } 7039 } else { 7040 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 7041 + oldStart + "-" + oldEnd + "," 7042 + newStart + "-" + newEnd + what); 7043 ims.mContentChanged = true; 7044 } 7045 } 7046 } 7047 } 7048 7049 private class ChangeWatcher 7050 implements TextWatcher, SpanWatcher { 7051 7052 private CharSequence mBeforeText; 7053 7054 public void beforeTextChanged(CharSequence buffer, int start, 7055 int before, int after) { 7056 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 7057 + " before=" + before + " after=" + after + ": " + buffer); 7058 7059 if (AccessibilityManager.getInstance(mContext).isEnabled() 7060 && !isPasswordInputType(mInputType) 7061 && !hasPasswordTransformationMethod()) { 7062 mBeforeText = buffer.toString(); 7063 } 7064 7065 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 7066 } 7067 7068 public void onTextChanged(CharSequence buffer, int start, 7069 int before, int after) { 7070 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 7071 + " before=" + before + " after=" + after + ": " + buffer); 7072 TextView.this.handleTextChanged(buffer, start, before, after); 7073 7074 if (AccessibilityManager.getInstance(mContext).isEnabled() && 7075 (isFocused() || isSelected() && 7076 isShown())) { 7077 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 7078 mBeforeText = null; 7079 } 7080 } 7081 7082 public void afterTextChanged(Editable buffer) { 7083 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 7084 TextView.this.sendAfterTextChanged(buffer); 7085 7086 if (MetaKeyKeyListener.getMetaState(buffer, 7087 MetaKeyKeyListener.META_SELECTING) != 0) { 7088 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 7089 } 7090 } 7091 7092 public void onSpanChanged(Spannable buf, 7093 Object what, int s, int e, int st, int en) { 7094 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 7095 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 7096 TextView.this.spanChange(buf, what, s, st, e, en); 7097 } 7098 7099 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 7100 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 7101 + " what=" + what + ": " + buf); 7102 TextView.this.spanChange(buf, what, -1, s, -1, e); 7103 } 7104 7105 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 7106 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 7107 + " what=" + what + ": " + buf); 7108 TextView.this.spanChange(buf, what, s, -1, e, -1); 7109 } 7110 } 7111 7112 /** 7113 * @hide 7114 */ 7115 @Override 7116 public void dispatchFinishTemporaryDetach() { 7117 mDispatchTemporaryDetach = true; 7118 super.dispatchFinishTemporaryDetach(); 7119 mDispatchTemporaryDetach = false; 7120 } 7121 7122 @Override 7123 public void onStartTemporaryDetach() { 7124 super.onStartTemporaryDetach(); 7125 // Only track when onStartTemporaryDetach() is called directly, 7126 // usually because this instance is an editable field in a list 7127 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 7128 7129 // Because of View recycling in ListView, there is no easy way to know when a TextView with 7130 // selection becomes visible again. Until a better solution is found, stop text selection 7131 // mode (if any) as soon as this TextView is recycled. 7132 stopSelectionActionMode(); 7133 } 7134 7135 @Override 7136 public void onFinishTemporaryDetach() { 7137 super.onFinishTemporaryDetach(); 7138 // Only track when onStartTemporaryDetach() is called directly, 7139 // usually because this instance is an editable field in a list 7140 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 7141 } 7142 7143 @Override 7144 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 7145 if (mTemporaryDetach) { 7146 // If we are temporarily in the detach state, then do nothing. 7147 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7148 return; 7149 } 7150 7151 mShowCursor = SystemClock.uptimeMillis(); 7152 7153 ensureEndedBatchEdit(); 7154 7155 if (focused) { 7156 int selStart = getSelectionStart(); 7157 int selEnd = getSelectionEnd(); 7158 7159 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 7160 // mode for these, unless there was a specific selection already started. 7161 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 7162 selEnd == mText.length(); 7163 mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted; 7164 7165 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 7166 // If a tap was used to give focus to that view, move cursor at tap position. 7167 // Has to be done before onTakeFocus, which can be overloaded. 7168 final int lastTapPosition = getLastTapPosition(); 7169 if (lastTapPosition >= 0) { 7170 Selection.setSelection((Spannable) mText, lastTapPosition); 7171 } 7172 7173 if (mMovement != null) { 7174 mMovement.onTakeFocus(this, (Spannable) mText, direction); 7175 } 7176 7177 // The DecorView does not have focus when the 'Done' ExtractEditText button is 7178 // pressed. Since it is the ViewAncestor's mView, it requests focus before 7179 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 7180 // This special case ensure that we keep current selection in that case. 7181 // It would be better to know why the DecorView does not have focus at that time. 7182 if (((this instanceof ExtractEditText) || mSelectionMoved) && 7183 selStart >= 0 && selEnd >= 0) { 7184 /* 7185 * Someone intentionally set the selection, so let them 7186 * do whatever it is that they wanted to do instead of 7187 * the default on-focus behavior. We reset the selection 7188 * here instead of just skipping the onTakeFocus() call 7189 * because some movement methods do something other than 7190 * just setting the selection in theirs and we still 7191 * need to go through that path. 7192 */ 7193 Selection.setSelection((Spannable) mText, selStart, selEnd); 7194 } 7195 7196 if (mSelectAllOnFocus) { 7197 selectAll(); 7198 } 7199 7200 mTouchFocusSelected = true; 7201 } 7202 7203 mFrozenWithFocus = false; 7204 mSelectionMoved = false; 7205 7206 if (mText instanceof Spannable) { 7207 Spannable sp = (Spannable) mText; 7208 MetaKeyKeyListener.resetMetaState(sp); 7209 } 7210 7211 makeBlink(); 7212 7213 if (mError != null) { 7214 showError(); 7215 } 7216 } else { 7217 if (mError != null) { 7218 hideError(); 7219 } 7220 // Don't leave us in the middle of a batch edit. 7221 onEndBatchEdit(); 7222 7223 if (this instanceof ExtractEditText) { 7224 // terminateTextSelectionMode removes selection, which we want to keep when 7225 // ExtractEditText goes out of focus. 7226 final int selStart = getSelectionStart(); 7227 final int selEnd = getSelectionEnd(); 7228 hideControllers(); 7229 Selection.setSelection((Spannable) mText, selStart, selEnd); 7230 } else { 7231 hideControllers(); 7232 } 7233 7234 // No need to create the controller 7235 if (mSelectionModifierCursorController != null) { 7236 mSelectionModifierCursorController.resetTouchOffsets(); 7237 } 7238 } 7239 7240 startStopMarquee(focused); 7241 7242 if (mTransformation != null) { 7243 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 7244 } 7245 7246 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7247 } 7248 7249 private int getLastTapPosition() { 7250 // No need to create the controller at that point, no last tap position saved 7251 if (mSelectionModifierCursorController != null) { 7252 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 7253 if (lastTapPosition >= 0) { 7254 // Safety check, should not be possible. 7255 if (lastTapPosition > mText.length()) { 7256 Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs " 7257 + mText.length() + ")"); 7258 lastTapPosition = mText.length(); 7259 } 7260 return lastTapPosition; 7261 } 7262 } 7263 7264 return -1; 7265 } 7266 7267 @Override 7268 public void onWindowFocusChanged(boolean hasWindowFocus) { 7269 super.onWindowFocusChanged(hasWindowFocus); 7270 7271 if (hasWindowFocus) { 7272 if (mBlink != null) { 7273 mBlink.uncancel(); 7274 makeBlink(); 7275 } 7276 } else { 7277 if (mBlink != null) { 7278 mBlink.cancel(); 7279 } 7280 // Don't leave us in the middle of a batch edit. 7281 onEndBatchEdit(); 7282 if (mInputContentType != null) { 7283 mInputContentType.enterDown = false; 7284 } 7285 hideControllers(); 7286 removeAllSuggestionSpans(); 7287 } 7288 7289 startStopMarquee(hasWindowFocus); 7290 } 7291 7292 private void removeAllSuggestionSpans() { 7293 if (mText instanceof Editable) { 7294 Editable editable = ((Editable) mText); 7295 SuggestionSpan[] spans = editable.getSpans(0, mText.length(), SuggestionSpan.class); 7296 final int length = spans.length; 7297 for (int i = 0; i < length; i++) { 7298 editable.removeSpan(spans[i]); 7299 } 7300 } 7301 } 7302 7303 @Override 7304 protected void onVisibilityChanged(View changedView, int visibility) { 7305 super.onVisibilityChanged(changedView, visibility); 7306 if (visibility != VISIBLE) { 7307 hideControllers(); 7308 } 7309 } 7310 7311 /** 7312 * Use {@link BaseInputConnection#removeComposingSpans 7313 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 7314 * state from this text view. 7315 */ 7316 public void clearComposingText() { 7317 if (mText instanceof Spannable) { 7318 BaseInputConnection.removeComposingSpans((Spannable)mText); 7319 } 7320 } 7321 7322 @Override 7323 public void setSelected(boolean selected) { 7324 boolean wasSelected = isSelected(); 7325 7326 super.setSelected(selected); 7327 7328 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7329 if (selected) { 7330 startMarquee(); 7331 } else { 7332 stopMarquee(); 7333 } 7334 } 7335 } 7336 7337 @Override 7338 public boolean onTouchEvent(MotionEvent event) { 7339 final int action = event.getActionMasked(); 7340 7341 if (hasInsertionController()) { 7342 getInsertionController().onTouchEvent(event); 7343 } 7344 if (hasSelectionController()) { 7345 getSelectionController().onTouchEvent(event); 7346 } 7347 7348 if (action == MotionEvent.ACTION_DOWN) { 7349 mLastDownPositionX = event.getX(); 7350 mLastDownPositionY = event.getY(); 7351 7352 // Reset this state; it will be re-set if super.onTouchEvent 7353 // causes focus to move to the view. 7354 mTouchFocusSelected = false; 7355 mIgnoreActionUpEvent = false; 7356 } 7357 7358 final boolean superResult = super.onTouchEvent(event); 7359 7360 /* 7361 * Don't handle the release after a long press, because it will 7362 * move the selection away from whatever the menu action was 7363 * trying to affect. 7364 */ 7365 if (mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 7366 mDiscardNextActionUp = false; 7367 return superResult; 7368 } 7369 7370 final boolean touchIsFinished = action == MotionEvent.ACTION_UP && !mIgnoreActionUpEvent && 7371 isFocused(); 7372 7373 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 7374 && mText instanceof Spannable && mLayout != null) { 7375 boolean handled = false; 7376 7377 if (mMovement != null) { 7378 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 7379 } 7380 7381 if (mLinksClickable && mAutoLinkMask != 0 && mTextIsSelectable && touchIsFinished) { 7382 // The LinkMovementMethod which should handle taps on links has not been installed 7383 // to support text selection. We reproduce its behavior here to open links. 7384 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 7385 getSelectionEnd(), ClickableSpan.class); 7386 7387 if (links.length != 0) { 7388 links[0].onClick(this); 7389 handled = true; 7390 } 7391 } 7392 7393 if ((isTextEditable() || mTextIsSelectable) && touchIsFinished) { 7394 // Show the IME, except when selecting in read-only text. 7395 if (!mTextIsSelectable) { 7396 final InputMethodManager imm = InputMethodManager.peekInstance(); 7397 handled |= imm != null && imm.showSoftInput(this, 0); 7398 } 7399 7400 boolean selectAllGotFocus = mSelectAllOnFocus && didTouchFocusSelect(); 7401 if (!selectAllGotFocus && hasSelection()) { 7402 startSelectionActionMode(); 7403 } else { 7404 stopSelectionActionMode(); 7405 hideSuggestions(); 7406 if (hasInsertionController() && !selectAllGotFocus && mText.length() > 0) { 7407 getInsertionController().show(); 7408 } 7409 } 7410 } 7411 7412 if (handled) { 7413 return true; 7414 } 7415 } 7416 7417 return superResult; 7418 } 7419 7420 @Override 7421 public boolean onGenericMotionEvent(MotionEvent event) { 7422 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 7423 try { 7424 if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) { 7425 return true; 7426 } 7427 } catch (AbstractMethodError ex) { 7428 // onGenericMotionEvent was added to the MovementMethod interface in API 12. 7429 // Ignore its absence in case third party applications implemented the 7430 // interface directly. 7431 } 7432 } 7433 return super.onGenericMotionEvent(event); 7434 } 7435 7436 private void prepareCursorControllers() { 7437 boolean windowSupportsHandles = false; 7438 7439 ViewGroup.LayoutParams params = getRootView().getLayoutParams(); 7440 if (params instanceof WindowManager.LayoutParams) { 7441 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 7442 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 7443 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 7444 } 7445 7446 mInsertionControllerEnabled = windowSupportsHandles && isCursorVisible() && mLayout != null; 7447 mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() && 7448 mLayout != null; 7449 7450 if (!mInsertionControllerEnabled) { 7451 hideInsertionPointCursorController(); 7452 if (mInsertionPointCursorController != null) { 7453 mInsertionPointCursorController.onDetached(); 7454 mInsertionPointCursorController = null; 7455 } 7456 } 7457 7458 if (!mSelectionControllerEnabled) { 7459 stopSelectionActionMode(); 7460 if (mSelectionModifierCursorController != null) { 7461 mSelectionModifierCursorController.onDetached(); 7462 mSelectionModifierCursorController = null; 7463 } 7464 } 7465 } 7466 7467 /** 7468 * @return True iff this TextView contains a text that can be edited, or if this is 7469 * a selectable TextView. 7470 */ 7471 private boolean isTextEditable() { 7472 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 7473 } 7474 7475 /** 7476 * Returns true, only while processing a touch gesture, if the initial 7477 * touch down event caused focus to move to the text view and as a result 7478 * its selection changed. Only valid while processing the touch gesture 7479 * of interest. 7480 */ 7481 public boolean didTouchFocusSelect() { 7482 return mTouchFocusSelected; 7483 } 7484 7485 @Override 7486 public void cancelLongPress() { 7487 super.cancelLongPress(); 7488 mIgnoreActionUpEvent = true; 7489 } 7490 7491 @Override 7492 public boolean onTrackballEvent(MotionEvent event) { 7493 if (mMovement != null && mText instanceof Spannable && 7494 mLayout != null) { 7495 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 7496 return true; 7497 } 7498 } 7499 7500 return super.onTrackballEvent(event); 7501 } 7502 7503 public void setScroller(Scroller s) { 7504 mScroller = s; 7505 } 7506 7507 private static class Blink extends Handler implements Runnable { 7508 private final WeakReference<TextView> mView; 7509 private boolean mCancelled; 7510 7511 public Blink(TextView v) { 7512 mView = new WeakReference<TextView>(v); 7513 } 7514 7515 public void run() { 7516 if (mCancelled) { 7517 return; 7518 } 7519 7520 removeCallbacks(Blink.this); 7521 7522 TextView tv = mView.get(); 7523 7524 if (tv != null && tv.shouldBlink()) { 7525 if (tv.mLayout != null) { 7526 tv.invalidateCursorPath(); 7527 } 7528 7529 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 7530 } 7531 } 7532 7533 void cancel() { 7534 if (!mCancelled) { 7535 removeCallbacks(Blink.this); 7536 mCancelled = true; 7537 } 7538 } 7539 7540 void uncancel() { 7541 mCancelled = false; 7542 } 7543 } 7544 7545 /** 7546 * @return True when the TextView isFocused and has a valid zero-length selection (cursor). 7547 */ 7548 private boolean shouldBlink() { 7549 if (!isFocused()) return false; 7550 7551 final int start = getSelectionStart(); 7552 if (start < 0) return false; 7553 7554 final int end = getSelectionEnd(); 7555 if (end < 0) return false; 7556 7557 return start == end; 7558 } 7559 7560 private void makeBlink() { 7561 if (isCursorVisible()) { 7562 if (shouldBlink()) { 7563 mShowCursor = SystemClock.uptimeMillis(); 7564 if (mBlink == null) mBlink = new Blink(this); 7565 mBlink.removeCallbacks(mBlink); 7566 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 7567 } 7568 } else { 7569 if (mBlink != null) mBlink.removeCallbacks(mBlink); 7570 } 7571 } 7572 7573 @Override 7574 protected float getLeftFadingEdgeStrength() { 7575 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7576 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7577 if (mMarquee != null && !mMarquee.isStopped()) { 7578 final Marquee marquee = mMarquee; 7579 if (marquee.shouldDrawLeftFade()) { 7580 return marquee.mScroll / getHorizontalFadingEdgeLength(); 7581 } else { 7582 return 0.0f; 7583 } 7584 } else if (getLineCount() == 1) { 7585 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, isLayoutRtl()); 7586 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7587 case Gravity.LEFT: 7588 return 0.0f; 7589 case Gravity.RIGHT: 7590 return (mLayout.getLineRight(0) - (mRight - mLeft) - 7591 getCompoundPaddingLeft() - getCompoundPaddingRight() - 7592 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 7593 case Gravity.CENTER_HORIZONTAL: 7594 return 0.0f; 7595 } 7596 } 7597 } 7598 return super.getLeftFadingEdgeStrength(); 7599 } 7600 7601 @Override 7602 protected float getRightFadingEdgeStrength() { 7603 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7604 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7605 if (mMarquee != null && !mMarquee.isStopped()) { 7606 final Marquee marquee = mMarquee; 7607 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 7608 } else if (getLineCount() == 1) { 7609 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, isLayoutRtl()); 7610 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7611 case Gravity.LEFT: 7612 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 7613 getCompoundPaddingRight(); 7614 final float lineWidth = mLayout.getLineWidth(0); 7615 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 7616 case Gravity.RIGHT: 7617 return 0.0f; 7618 case Gravity.CENTER_HORIZONTAL: 7619 case Gravity.FILL_HORIZONTAL: 7620 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 7621 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 7622 getHorizontalFadingEdgeLength(); 7623 } 7624 } 7625 } 7626 return super.getRightFadingEdgeStrength(); 7627 } 7628 7629 @Override 7630 protected int computeHorizontalScrollRange() { 7631 if (mLayout != null) { 7632 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 7633 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 7634 } 7635 7636 return super.computeHorizontalScrollRange(); 7637 } 7638 7639 @Override 7640 protected int computeVerticalScrollRange() { 7641 if (mLayout != null) 7642 return mLayout.getHeight(); 7643 7644 return super.computeVerticalScrollRange(); 7645 } 7646 7647 @Override 7648 protected int computeVerticalScrollExtent() { 7649 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 7650 } 7651 7652 @Override 7653 public void findViewsWithText(ArrayList<View> outViews, CharSequence text) { 7654 CharSequence thisText = getText(); 7655 if (TextUtils.isEmpty(thisText)) { 7656 return; 7657 } 7658 if (thisText.toString().toLowerCase().contains(text)) { 7659 outViews.add(this); 7660 } 7661 } 7662 7663 public enum BufferType { 7664 NORMAL, SPANNABLE, EDITABLE, 7665 } 7666 7667 /** 7668 * Returns the TextView_textColor attribute from the 7669 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 7670 * from the TextView_textAppearance attribute, if TextView_textColor 7671 * was not set directly. 7672 */ 7673 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 7674 ColorStateList colors; 7675 colors = attrs.getColorStateList(com.android.internal.R.styleable. 7676 TextView_textColor); 7677 7678 if (colors == null) { 7679 int ap = attrs.getResourceId(com.android.internal.R.styleable. 7680 TextView_textAppearance, -1); 7681 if (ap != -1) { 7682 TypedArray appearance; 7683 appearance = context.obtainStyledAttributes(ap, 7684 com.android.internal.R.styleable.TextAppearance); 7685 colors = appearance.getColorStateList(com.android.internal.R.styleable. 7686 TextAppearance_textColor); 7687 appearance.recycle(); 7688 } 7689 } 7690 7691 return colors; 7692 } 7693 7694 /** 7695 * Returns the default color from the TextView_textColor attribute 7696 * from the AttributeSet, if set, or the default color from the 7697 * TextAppearance_textColor from the TextView_textAppearance attribute, 7698 * if TextView_textColor was not set directly. 7699 */ 7700 public static int getTextColor(Context context, 7701 TypedArray attrs, 7702 int def) { 7703 ColorStateList colors = getTextColors(context, attrs); 7704 7705 if (colors == null) { 7706 return def; 7707 } else { 7708 return colors.getDefaultColor(); 7709 } 7710 } 7711 7712 @Override 7713 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 7714 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 7715 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 7716 switch (keyCode) { 7717 case KeyEvent.KEYCODE_A: 7718 if (canSelectText()) { 7719 return onTextContextMenuItem(ID_SELECT_ALL); 7720 } 7721 break; 7722 case KeyEvent.KEYCODE_X: 7723 if (canCut()) { 7724 return onTextContextMenuItem(ID_CUT); 7725 } 7726 break; 7727 case KeyEvent.KEYCODE_C: 7728 if (canCopy()) { 7729 return onTextContextMenuItem(ID_COPY); 7730 } 7731 break; 7732 case KeyEvent.KEYCODE_V: 7733 if (canPaste()) { 7734 return onTextContextMenuItem(ID_PASTE); 7735 } 7736 break; 7737 } 7738 } 7739 return super.onKeyShortcut(keyCode, event); 7740 } 7741 7742 /** 7743 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 7744 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 7745 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 7746 */ 7747 private boolean canSelectText() { 7748 return hasSelectionController() && mText.length() != 0; 7749 } 7750 7751 /** 7752 * Test based on the <i>intrinsic</i> charateristics of the TextView. 7753 * The text must be spannable and the movement method must allow for arbitary selection. 7754 * 7755 * See also {@link #canSelectText()}. 7756 */ 7757 private boolean textCanBeSelected() { 7758 // prepareCursorController() relies on this method. 7759 // If you change this condition, make sure prepareCursorController is called anywhere 7760 // the value of this condition might be changed. 7761 return mText instanceof Spannable && mMovement != null && mMovement.canSelectArbitrarily(); 7762 } 7763 7764 private boolean canCut() { 7765 if (hasPasswordTransformationMethod()) { 7766 return false; 7767 } 7768 7769 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mInput != null) { 7770 return true; 7771 } 7772 7773 return false; 7774 } 7775 7776 private boolean canCopy() { 7777 if (hasPasswordTransformationMethod()) { 7778 return false; 7779 } 7780 7781 if (mText.length() > 0 && hasSelection()) { 7782 return true; 7783 } 7784 7785 return false; 7786 } 7787 7788 private boolean canPaste() { 7789 return (mText instanceof Editable && 7790 mInput != null && 7791 getSelectionStart() >= 0 && 7792 getSelectionEnd() >= 0 && 7793 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 7794 hasPrimaryClip()); 7795 } 7796 7797 private static long packRangeInLong(int start, int end) { 7798 return (((long) start) << 32) | end; 7799 } 7800 7801 private static int extractRangeStartFromLong(long range) { 7802 return (int) (range >>> 32); 7803 } 7804 7805 private static int extractRangeEndFromLong(long range) { 7806 return (int) (range & 0x00000000FFFFFFFFL); 7807 } 7808 7809 private boolean selectAll() { 7810 final int length = mText.length(); 7811 Selection.setSelection((Spannable) mText, 0, length); 7812 return length > 0; 7813 } 7814 7815 /** 7816 * Adjusts selection to the word under last touch offset. 7817 * Return true if the operation was successfully performed. 7818 */ 7819 private boolean selectCurrentWord() { 7820 if (!canSelectText()) { 7821 return false; 7822 } 7823 7824 if (hasPasswordTransformationMethod()) { 7825 // Always select all on a password field. 7826 // Cut/copy menu entries are not available for passwords, but being able to select all 7827 // is however useful to delete or paste to replace the entire content. 7828 return selectAll(); 7829 } 7830 7831 int klass = mInputType & InputType.TYPE_MASK_CLASS; 7832 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 7833 7834 // Specific text field types: select the entire text for these 7835 if (klass == InputType.TYPE_CLASS_NUMBER || 7836 klass == InputType.TYPE_CLASS_PHONE || 7837 klass == InputType.TYPE_CLASS_DATETIME || 7838 variation == InputType.TYPE_TEXT_VARIATION_URI || 7839 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 7840 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 7841 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 7842 return selectAll(); 7843 } 7844 7845 long lastTouchOffsets = getLastTouchOffsets(); 7846 final int minOffset = extractRangeStartFromLong(lastTouchOffsets); 7847 final int maxOffset = extractRangeEndFromLong(lastTouchOffsets); 7848 7849 int selectionStart, selectionEnd; 7850 7851 // If a URLSpan (web address, email, phone...) is found at that position, select it. 7852 URLSpan[] urlSpans = ((Spanned) mText).getSpans(minOffset, maxOffset, URLSpan.class); 7853 if (urlSpans.length == 1) { 7854 URLSpan url = urlSpans[0]; 7855 selectionStart = ((Spanned) mText).getSpanStart(url); 7856 selectionEnd = ((Spanned) mText).getSpanEnd(url); 7857 } else { 7858 if (mWordIterator == null) { 7859 mWordIterator = new WordIterator(); 7860 } 7861 // WordIerator handles text changes, this is a no-op if text in unchanged. 7862 mWordIterator.setCharSequence(mText); 7863 7864 selectionStart = mWordIterator.getBeginning(minOffset); 7865 if (selectionStart == BreakIterator.DONE) return false; 7866 7867 selectionEnd = mWordIterator.getEnd(maxOffset); 7868 if (selectionEnd == BreakIterator.DONE) return false; 7869 } 7870 7871 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 7872 return true; 7873 } 7874 7875 private long getLastTouchOffsets() { 7876 int minOffset, maxOffset; 7877 7878 if (mContextMenuTriggeredByKey) { 7879 minOffset = getSelectionStart(); 7880 maxOffset = getSelectionEnd(); 7881 } else { 7882 SelectionModifierCursorController selectionController = getSelectionController(); 7883 minOffset = selectionController.getMinTouchOffset(); 7884 maxOffset = selectionController.getMaxTouchOffset(); 7885 } 7886 7887 return packRangeInLong(minOffset, maxOffset); 7888 } 7889 7890 @Override 7891 public void onPopulateAccessibilityEvent(AccessibilityEvent event) { 7892 super.onPopulateAccessibilityEvent(event); 7893 7894 final boolean isPassword = hasPasswordTransformationMethod(); 7895 if (!isPassword) { 7896 CharSequence text = getText(); 7897 if (TextUtils.isEmpty(text)) { 7898 text = getHint(); 7899 } 7900 if (!TextUtils.isEmpty(text)) { 7901 event.getText().add(text); 7902 } 7903 } 7904 } 7905 7906 @Override 7907 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 7908 super.onInitializeAccessibilityEvent(event); 7909 7910 final boolean isPassword = hasPasswordTransformationMethod(); 7911 event.setPassword(isPassword); 7912 } 7913 7914 @Override 7915 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 7916 super.onInitializeAccessibilityNodeInfo(info); 7917 7918 final boolean isPassword = hasPasswordTransformationMethod(); 7919 if (!isPassword) { 7920 info.setText(getText()); 7921 } 7922 info.setPassword(isPassword); 7923 } 7924 7925 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 7926 int fromIndex, int removedCount, int addedCount) { 7927 AccessibilityEvent event = 7928 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 7929 event.setFromIndex(fromIndex); 7930 event.setRemovedCount(removedCount); 7931 event.setAddedCount(addedCount); 7932 event.setBeforeText(beforeText); 7933 sendAccessibilityEventUnchecked(event); 7934 } 7935 7936 @Override 7937 protected void onCreateContextMenu(ContextMenu menu) { 7938 super.onCreateContextMenu(menu); 7939 boolean added = false; 7940 mContextMenuTriggeredByKey = mDPadCenterIsDown || mEnterKeyIsDown; 7941 // Problem with context menu on long press: the menu appears while the key in down and when 7942 // the key is released, the view does not receive the key_up event. 7943 // We need two layers of flags: mDPadCenterIsDown and mEnterKeyIsDown are set in key down/up 7944 // events. We cannot simply clear these flags in onTextContextMenuItem since 7945 // it may not be called (if the user/ discards the context menu with the back key). 7946 // We clear these flags here and mContextMenuTriggeredByKey saves that state so that it is 7947 // available in onTextContextMenuItem. 7948 mDPadCenterIsDown = mEnterKeyIsDown = false; 7949 7950 MenuHandler handler = new MenuHandler(); 7951 7952 if (mText instanceof Spanned && hasSelectionController()) { 7953 long lastTouchOffset = getLastTouchOffsets(); 7954 final int selStart = extractRangeStartFromLong(lastTouchOffset); 7955 final int selEnd = extractRangeEndFromLong(lastTouchOffset); 7956 7957 URLSpan[] urls = ((Spanned) mText).getSpans(selStart, selEnd, URLSpan.class); 7958 if (urls.length > 0) { 7959 menu.add(0, ID_COPY_URL, 0, com.android.internal.R.string.copyUrl). 7960 setOnMenuItemClickListener(handler); 7961 7962 added = true; 7963 } 7964 } 7965 7966 // The context menu is not empty, which will prevent the selection mode from starting. 7967 // Add a entry to start it in the context menu. 7968 // TODO Does not handle the case where a subclass does not call super.thisMethod or 7969 // populates the menu AFTER this call. 7970 if (menu.size() > 0) { 7971 menu.add(0, ID_SELECTION_MODE, 0, com.android.internal.R.string.selectTextMode). 7972 setOnMenuItemClickListener(handler); 7973 added = true; 7974 } 7975 7976 if (added) { 7977 menu.setHeaderTitle(com.android.internal.R.string.editTextMenuTitle); 7978 } 7979 } 7980 7981 /** 7982 * Returns whether this text view is a current input method target. The 7983 * default implementation just checks with {@link InputMethodManager}. 7984 */ 7985 public boolean isInputMethodTarget() { 7986 InputMethodManager imm = InputMethodManager.peekInstance(); 7987 return imm != null && imm.isActive(this); 7988 } 7989 7990 // Selection context mode 7991 private static final int ID_SELECT_ALL = android.R.id.selectAll; 7992 private static final int ID_CUT = android.R.id.cut; 7993 private static final int ID_COPY = android.R.id.copy; 7994 private static final int ID_PASTE = android.R.id.paste; 7995 // Context menu entries 7996 private static final int ID_COPY_URL = android.R.id.copyUrl; 7997 private static final int ID_SELECTION_MODE = android.R.id.selectTextMode; 7998 7999 private class MenuHandler implements MenuItem.OnMenuItemClickListener { 8000 public boolean onMenuItemClick(MenuItem item) { 8001 return onTextContextMenuItem(item.getItemId()); 8002 } 8003 } 8004 8005 /** 8006 * Called when a context menu option for the text view is selected. Currently 8007 * this will be {@link android.R.id#copyUrl}, {@link android.R.id#selectTextMode}, 8008 * {@link android.R.id#selectAll}, {@link android.R.id#paste}, {@link android.R.id#cut} 8009 * or {@link android.R.id#copy}. 8010 * 8011 * @return true if the context menu item action was performed. 8012 */ 8013 public boolean onTextContextMenuItem(int id) { 8014 int min = 0; 8015 int max = mText.length(); 8016 8017 if (isFocused()) { 8018 final int selStart = getSelectionStart(); 8019 final int selEnd = getSelectionEnd(); 8020 8021 min = Math.max(0, Math.min(selStart, selEnd)); 8022 max = Math.max(0, Math.max(selStart, selEnd)); 8023 } 8024 8025 switch (id) { 8026 case ID_COPY_URL: 8027 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, URLSpan.class); 8028 if (urls.length >= 1) { 8029 ClipData clip = null; 8030 for (int i=0; i<urls.length; i++) { 8031 Uri uri = Uri.parse(urls[0].getURL()); 8032 if (clip == null) { 8033 clip = ClipData.newRawUri(null, uri); 8034 } else { 8035 clip.addItem(new ClipData.Item(uri)); 8036 } 8037 } 8038 if (clip != null) { 8039 setPrimaryClip(clip); 8040 } 8041 } 8042 stopSelectionActionMode(); 8043 return true; 8044 8045 case ID_SELECTION_MODE: 8046 if (mSelectionActionMode != null) { 8047 // Selection mode is already started, simply change selected part. 8048 selectCurrentWord(); 8049 } else { 8050 startSelectionActionMode(); 8051 } 8052 return true; 8053 8054 case ID_SELECT_ALL: 8055 // This does not enter text selection mode. Text is highlighted, so that it can be 8056 // bulk edited, like selectAllOnFocus does. Returns true even if text is empty. 8057 selectAll(); 8058 return true; 8059 8060 case ID_PASTE: 8061 paste(min, max); 8062 return true; 8063 8064 case ID_CUT: 8065 setPrimaryClip(ClipData.newPlainText(null, mTransformed.subSequence(min, max))); 8066 ((Editable) mText).delete(min, max); 8067 stopSelectionActionMode(); 8068 return true; 8069 8070 case ID_COPY: 8071 setPrimaryClip(ClipData.newPlainText(null, mTransformed.subSequence(min, max))); 8072 stopSelectionActionMode(); 8073 return true; 8074 } 8075 return false; 8076 } 8077 8078 /** 8079 * Prepare text so that there are not zero or two spaces at beginning and end of region defined 8080 * by [min, max] when replacing this region by paste. 8081 * Note that if there were two spaces (or more) at that position before, they are kept. We just 8082 * make sure we do not add an extra one from the paste content. 8083 */ 8084 private long prepareSpacesAroundPaste(int min, int max, CharSequence paste) { 8085 if (paste.length() > 0) { 8086 if (min > 0) { 8087 final char charBefore = mTransformed.charAt(min - 1); 8088 final char charAfter = paste.charAt(0); 8089 8090 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8091 // Two spaces at beginning of paste: remove one 8092 final int originalLength = mText.length(); 8093 ((Editable) mText).delete(min - 1, min); 8094 // Due to filters, there is no guarantee that exactly one character was 8095 // removed: count instead. 8096 final int delta = mText.length() - originalLength; 8097 min += delta; 8098 max += delta; 8099 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8100 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8101 // No space at beginning of paste: add one 8102 final int originalLength = mText.length(); 8103 ((Editable) mText).replace(min, min, " "); 8104 // Taking possible filters into account as above. 8105 final int delta = mText.length() - originalLength; 8106 min += delta; 8107 max += delta; 8108 } 8109 } 8110 8111 if (max < mText.length()) { 8112 final char charBefore = paste.charAt(paste.length() - 1); 8113 final char charAfter = mTransformed.charAt(max); 8114 8115 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8116 // Two spaces at end of paste: remove one 8117 ((Editable) mText).delete(max, max + 1); 8118 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8119 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8120 // No space at end of paste: add one 8121 ((Editable) mText).replace(max, max, " "); 8122 } 8123 } 8124 } 8125 8126 return packRangeInLong(min, max); 8127 } 8128 8129 private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { 8130 TextView shadowView = (TextView) inflate(mContext, 8131 com.android.internal.R.layout.text_drag_thumbnail, null); 8132 8133 if (shadowView == null) { 8134 throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); 8135 } 8136 8137 if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { 8138 text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); 8139 } 8140 shadowView.setText(text); 8141 shadowView.setTextColor(getTextColors()); 8142 8143 shadowView.setTextAppearance(mContext, R.styleable.Theme_textAppearanceLarge); 8144 shadowView.setGravity(Gravity.CENTER); 8145 8146 shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 8147 ViewGroup.LayoutParams.WRAP_CONTENT)); 8148 8149 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8150 shadowView.measure(size, size); 8151 8152 shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); 8153 shadowView.invalidate(); 8154 return new DragShadowBuilder(shadowView); 8155 } 8156 8157 private static class DragLocalState { 8158 public TextView sourceTextView; 8159 public int start, end; 8160 8161 public DragLocalState(TextView sourceTextView, int start, int end) { 8162 this.sourceTextView = sourceTextView; 8163 this.start = start; 8164 this.end = end; 8165 } 8166 } 8167 8168 @Override 8169 public boolean performLongClick() { 8170 if (super.performLongClick()) { 8171 mDiscardNextActionUp = true; 8172 return true; 8173 } 8174 8175 boolean handled = false; 8176 8177 // Long press in empty space moves cursor and shows the Paste affordance if available. 8178 if (!isPositionOnText(mLastDownPositionX, mLastDownPositionY) && 8179 mInsertionControllerEnabled) { 8180 final int offset = getOffsetForPosition(mLastDownPositionX, mLastDownPositionY); 8181 stopSelectionActionMode(); 8182 Selection.setSelection((Spannable) mText, offset); 8183 getInsertionController().showWithPaste(); 8184 handled = true; 8185 } 8186 8187 if (!handled && mSelectionActionMode != null) { 8188 if (touchPositionIsInSelection()) { 8189 // Start a drag 8190 final int start = getSelectionStart(); 8191 final int end = getSelectionEnd(); 8192 CharSequence selectedText = mTransformed.subSequence(start, end); 8193 ClipData data = ClipData.newPlainText(null, selectedText); 8194 DragLocalState localState = new DragLocalState(this, start, end); 8195 startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); 8196 stopSelectionActionMode(); 8197 } else { 8198 selectCurrentWord(); 8199 } 8200 handled = true; 8201 } 8202 8203 // Start a new selection 8204 handled |= !handled && startSelectionActionMode(); 8205 8206 if (handled) { 8207 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 8208 mDiscardNextActionUp = true; 8209 } 8210 8211 return handled; 8212 } 8213 8214 private boolean touchPositionIsInSelection() { 8215 int selectionStart = getSelectionStart(); 8216 int selectionEnd = getSelectionEnd(); 8217 8218 if (selectionStart == selectionEnd) { 8219 return false; 8220 } 8221 8222 if (selectionStart > selectionEnd) { 8223 int tmp = selectionStart; 8224 selectionStart = selectionEnd; 8225 selectionEnd = tmp; 8226 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8227 } 8228 8229 SelectionModifierCursorController selectionController = getSelectionController(); 8230 int minOffset = selectionController.getMinTouchOffset(); 8231 int maxOffset = selectionController.getMaxTouchOffset(); 8232 8233 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 8234 } 8235 8236 private static class SuggestionRangeSpan extends UnderlineSpan { 8237 // TODO themable, would be nice to make it a child class of TextAppearanceSpan, but 8238 // there is no way to have underline and TextAppearanceSpan. 8239 } 8240 8241 private class SuggestionsPopupWindow implements OnClickListener { 8242 private static final int MAX_NUMBER_SUGGESTIONS = 5; 8243 private static final int NO_SUGGESTIONS = -1; 8244 private final PopupWindow mContainer; 8245 private final ViewGroup[] mSuggestionViews = new ViewGroup[2]; 8246 private final int[] mSuggestionViewLayouts = new int[] { 8247 mTextEditSuggestionsBottomWindowLayout, mTextEditSuggestionsTopWindowLayout}; 8248 private WordIterator mSuggestionWordIterator; 8249 private TextAppearanceSpan[] mHighlightSpans = new TextAppearanceSpan[0]; 8250 8251 public SuggestionsPopupWindow() { 8252 mContainer = new PopupWindow(TextView.this.mContext, null, 8253 com.android.internal.R.attr.textSuggestionsWindowStyle); 8254 mContainer.setSplitTouchEnabled(true); 8255 mContainer.setClippingEnabled(false); 8256 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8257 8258 mContainer.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 8259 mContainer.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 8260 } 8261 8262 private class SuggestionInfo { 8263 int suggestionStart, suggestionEnd; // range of suggestion item with replacement text 8264 int spanStart, spanEnd; // range in TextView where text should be inserted 8265 SuggestionSpan suggestionSpan; // the SuggestionSpan that this TextView represents 8266 int suggestionIndex; // the index of the suggestion inside suggestionSpan 8267 } 8268 8269 private ViewGroup getViewGroup(boolean under) { 8270 final int viewIndex = under ? 0 : 1; 8271 ViewGroup viewGroup = mSuggestionViews[viewIndex]; 8272 8273 if (viewGroup == null) { 8274 final int layout = mSuggestionViewLayouts[viewIndex]; 8275 LayoutInflater inflater = (LayoutInflater) TextView.this.mContext. 8276 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 8277 8278 if (inflater == null) { 8279 throw new IllegalArgumentException( 8280 "Unable to create TextEdit suggestion window inflater"); 8281 } 8282 8283 View view = inflater.inflate(layout, null); 8284 8285 if (! (view instanceof ViewGroup)) { 8286 throw new IllegalArgumentException( 8287 "Inflated TextEdit suggestion window is not a ViewGroup: " + view); 8288 } 8289 8290 viewGroup = (ViewGroup) view; 8291 8292 // Inflate the suggestion items once and for all. 8293 for (int i = 0; i < MAX_NUMBER_SUGGESTIONS; i++) { 8294 View childView = inflater.inflate(mTextEditSuggestionItemLayout, viewGroup, 8295 false); 8296 8297 if (! (childView instanceof TextView)) { 8298 throw new IllegalArgumentException( 8299 "Inflated TextEdit suggestion item is not a TextView: " + childView); 8300 } 8301 8302 childView.setTag(new SuggestionInfo()); 8303 viewGroup.addView(childView); 8304 childView.setOnClickListener(this); 8305 } 8306 8307 mSuggestionViews[viewIndex] = viewGroup; 8308 } 8309 8310 return viewGroup; 8311 } 8312 8313 public void show() { 8314 if (!(mText instanceof Editable)) return; 8315 8316 final int pos = TextView.this.getSelectionStart(); 8317 Spannable spannable = (Spannable)TextView.this.mText; 8318 SuggestionSpan[] suggestionSpans = spannable.getSpans(pos, pos, SuggestionSpan.class); 8319 final int nbSpans = suggestionSpans.length; 8320 8321 ViewGroup viewGroup = getViewGroup(true); 8322 mContainer.setContentView(viewGroup); 8323 8324 int totalNbSuggestions = 0; 8325 int spanUnionStart = mText.length(); 8326 int spanUnionEnd = 0; 8327 8328 for (int spanIndex = 0; spanIndex < nbSpans; spanIndex++) { 8329 SuggestionSpan suggestionSpan = suggestionSpans[spanIndex]; 8330 final int spanStart = spannable.getSpanStart(suggestionSpan); 8331 final int spanEnd = spannable.getSpanEnd(suggestionSpan); 8332 spanUnionStart = Math.min(spanStart, spanUnionStart); 8333 spanUnionEnd = Math.max(spanEnd, spanUnionEnd); 8334 8335 String[] suggestions = suggestionSpan.getSuggestions(); 8336 int nbSuggestions = suggestions.length; 8337 for (int suggestionIndex = 0; suggestionIndex < nbSuggestions; suggestionIndex++) { 8338 TextView textView = (TextView) viewGroup.getChildAt(totalNbSuggestions); 8339 textView.setText(suggestions[suggestionIndex]); 8340 SuggestionInfo suggestionInfo = (SuggestionInfo) textView.getTag(); 8341 suggestionInfo.spanStart = spanStart; 8342 suggestionInfo.spanEnd = spanEnd; 8343 suggestionInfo.suggestionSpan = suggestionSpan; 8344 suggestionInfo.suggestionIndex = suggestionIndex; 8345 8346 totalNbSuggestions++; 8347 if (totalNbSuggestions == MAX_NUMBER_SUGGESTIONS) { 8348 // Also end outer for loop 8349 spanIndex = nbSpans; 8350 break; 8351 } 8352 } 8353 } 8354 8355 if (totalNbSuggestions == 0) { 8356 // TODO Replace by final text, use a dedicated layout, add a fade out timer... 8357 TextView textView = (TextView) viewGroup.getChildAt(0); 8358 textView.setText("No suggestions available"); 8359 SuggestionInfo suggestionInfo = (SuggestionInfo) textView.getTag(); 8360 suggestionInfo.spanStart = NO_SUGGESTIONS; 8361 totalNbSuggestions++; 8362 } else { 8363 if (mSuggestionRangeSpan == null) mSuggestionRangeSpan = new SuggestionRangeSpan(); 8364 ((Editable) mText).setSpan(mSuggestionRangeSpan, spanUnionStart, spanUnionEnd, 8365 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 8366 8367 for (int i = 0; i < totalNbSuggestions; i++) { 8368 final TextView textView = (TextView) viewGroup.getChildAt(i); 8369 highlightTextDifferences(textView, spanUnionStart, spanUnionEnd); 8370 } 8371 } 8372 8373 for (int i = 0; i < MAX_NUMBER_SUGGESTIONS; i++) { 8374 viewGroup.getChildAt(i).setVisibility(i < totalNbSuggestions ? VISIBLE : GONE); 8375 } 8376 8377 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8378 viewGroup.measure(size, size); 8379 8380 positionAtCursor(); 8381 } 8382 8383 private long[] getWordLimits(CharSequence text) { 8384 // TODO locale for mSuggestionWordIterator 8385 if (mSuggestionWordIterator == null) mSuggestionWordIterator = new WordIterator(); 8386 mSuggestionWordIterator.setCharSequence(text); 8387 8388 // First pass will simply count the number of words to be able to create an array 8389 // Not too expensive since previous break positions are cached by the BreakIterator 8390 int nbWords = 0; 8391 int position = mSuggestionWordIterator.following(0); 8392 while (position != BreakIterator.DONE) { 8393 nbWords++; 8394 position = mSuggestionWordIterator.following(position); 8395 } 8396 8397 int index = 0; 8398 long[] result = new long[nbWords]; 8399 8400 position = mSuggestionWordIterator.following(0); 8401 while (position != BreakIterator.DONE) { 8402 int wordStart = mSuggestionWordIterator.getBeginning(position); 8403 result[index++] = packRangeInLong(wordStart, position); 8404 position = mSuggestionWordIterator.following(position); 8405 } 8406 8407 return result; 8408 } 8409 8410 private TextAppearanceSpan highlightSpan(int index) { 8411 final int length = mHighlightSpans.length; 8412 if (index < length) { 8413 return mHighlightSpans[index]; 8414 } 8415 8416 // Assumes indexes are requested in sequence: simply append one more item 8417 TextAppearanceSpan[] newArray = new TextAppearanceSpan[length + 1]; 8418 System.arraycopy(mHighlightSpans, 0, newArray, 0, length); 8419 TextAppearanceSpan highlightSpan = new TextAppearanceSpan(mContext, 8420 android.R.style.TextAppearance_SuggestionHighlight); 8421 newArray[length] = highlightSpan; 8422 mHighlightSpans = newArray; 8423 return highlightSpan; 8424 } 8425 8426 private void highlightTextDifferences(TextView textView, int unionStart, int unionEnd) { 8427 SuggestionInfo suggestionInfo = (SuggestionInfo) textView.getTag(); 8428 final int spanStart = suggestionInfo.spanStart; 8429 final int spanEnd = suggestionInfo.spanEnd; 8430 8431 // Remove all text formating by converting to Strings 8432 final String text = textView.getText().toString(); 8433 final String sourceText = mText.subSequence(spanStart, spanEnd).toString(); 8434 8435 long[] sourceWordLimits = getWordLimits(sourceText); 8436 long[] wordLimits = getWordLimits(text); 8437 8438 SpannableStringBuilder ssb = new SpannableStringBuilder(); 8439 // span [spanStart, spanEnd] is included in union [spanUnionStart, int spanUnionEnd] 8440 // The final result is made of 3 parts: the text before, between and after the span 8441 // This is the text before, provided for context 8442 ssb.append(mText.subSequence(unionStart, spanStart).toString()); 8443 8444 // shift is used to offset spans positions wrt span's beginning 8445 final int shift = spanStart - unionStart; 8446 suggestionInfo.suggestionStart = shift; 8447 suggestionInfo.suggestionEnd = shift + text.length(); 8448 8449 // This is the actual suggestion text, which will be highlighted by the following code 8450 ssb.append(text); 8451 8452 String[] words = new String[wordLimits.length]; 8453 for (int i = 0; i < wordLimits.length; i++) { 8454 int wordStart = extractRangeStartFromLong(wordLimits[i]); 8455 int wordEnd = extractRangeEndFromLong(wordLimits[i]); 8456 words[i] = text.substring(wordStart, wordEnd); 8457 } 8458 8459 // Highlighted word algorithm is based on word matching between source and text 8460 // Matching words are found from left to right. TODO: change for RTL languages 8461 // Characters between matching words are highlighted 8462 int previousCommonWordIndex = -1; 8463 int nbHighlightSpans = 0; 8464 for (int i = 0; i < sourceWordLimits.length; i++) { 8465 int wordStart = extractRangeStartFromLong(sourceWordLimits[i]); 8466 int wordEnd = extractRangeEndFromLong(sourceWordLimits[i]); 8467 String sourceWord = sourceText.substring(wordStart, wordEnd); 8468 8469 for (int j = previousCommonWordIndex + 1; j < words.length; j++) { 8470 if (sourceWord.equals(words[j])) { 8471 if (j != previousCommonWordIndex + 1) { 8472 int firstDifferentPosition = previousCommonWordIndex < 0 ? 0 : 8473 extractRangeEndFromLong(wordLimits[previousCommonWordIndex]); 8474 int lastDifferentPosition = extractRangeStartFromLong(wordLimits[j]); 8475 ssb.setSpan(highlightSpan(nbHighlightSpans++), 8476 shift + firstDifferentPosition, shift + lastDifferentPosition, 8477 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 8478 } else { 8479 // Compare characters between words 8480 int previousSourceWordEnd = i == 0 ? 0 : 8481 extractRangeEndFromLong(sourceWordLimits[i - 1]); 8482 int sourceWordStart = extractRangeStartFromLong(sourceWordLimits[i]); 8483 String sourceSpaces = sourceText.substring(previousSourceWordEnd, 8484 sourceWordStart); 8485 8486 int previousWordEnd = j == 0 ? 0 : 8487 extractRangeEndFromLong(wordLimits[j - 1]); 8488 int currentWordStart = extractRangeStartFromLong(wordLimits[j]); 8489 String textSpaces = text.substring(previousWordEnd, currentWordStart); 8490 8491 if (!sourceSpaces.equals(textSpaces)) { 8492 ssb.setSpan(highlightSpan(nbHighlightSpans++), 8493 shift + previousWordEnd, shift + currentWordStart, 8494 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 8495 } 8496 } 8497 previousCommonWordIndex = j; 8498 break; 8499 } 8500 } 8501 } 8502 8503 // Finally, compare ends of Strings 8504 if (previousCommonWordIndex < words.length - 1) { 8505 int firstDifferentPosition = previousCommonWordIndex < 0 ? 0 : 8506 extractRangeEndFromLong(wordLimits[previousCommonWordIndex]); 8507 int lastDifferentPosition = textView.length(); 8508 ssb.setSpan(highlightSpan(nbHighlightSpans++), 8509 shift + firstDifferentPosition, shift + lastDifferentPosition, 8510 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 8511 } else { 8512 int lastSourceWordEnd = sourceWordLimits.length == 0 ? 0 : 8513 extractRangeEndFromLong(sourceWordLimits[sourceWordLimits.length - 1]); 8514 String sourceSpaces = sourceText.substring(lastSourceWordEnd, sourceText.length()); 8515 8516 int lastCommonTextWordEnd = previousCommonWordIndex < 0 ? 0 : 8517 extractRangeEndFromLong(wordLimits[previousCommonWordIndex]); 8518 String textSpaces = text.substring(lastCommonTextWordEnd, textView.length()); 8519 8520 if (!sourceSpaces.equals(textSpaces) && textSpaces.length() > 0) { 8521 ssb.setSpan(highlightSpan(nbHighlightSpans++), 8522 shift + lastCommonTextWordEnd, shift + textView.length(), 8523 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 8524 } 8525 } 8526 8527 // Final part, text after the current suggestion range. 8528 ssb.append(mText.subSequence(spanEnd, unionEnd).toString()); 8529 textView.setText(ssb); 8530 } 8531 8532 public void hide() { 8533 if ((mText instanceof Editable) && mSuggestionRangeSpan != null) { 8534 ((Editable) mText).removeSpan(mSuggestionRangeSpan); 8535 } 8536 mContainer.dismiss(); 8537 } 8538 8539 @Override 8540 public void onClick(View view) { 8541 if (view instanceof TextView) { 8542 TextView textView = (TextView) view; 8543 SuggestionInfo suggestionInfo = (SuggestionInfo) textView.getTag(); 8544 final int spanStart = suggestionInfo.spanStart; 8545 final int spanEnd = suggestionInfo.spanEnd; 8546 if (spanStart != NO_SUGGESTIONS) { 8547 // SuggestionSpans are removed by replace: save them before 8548 Editable editable = ((Editable) mText); 8549 SuggestionSpan[] suggestionSpans = editable.getSpans(spanStart, spanEnd, 8550 SuggestionSpan.class); 8551 final int length = suggestionSpans.length; 8552 int[] suggestionSpansStarts = new int[length]; 8553 int[] suggestionSpansEnds = new int[length]; 8554 int[] suggestionSpansFlags = new int[length]; 8555 for (int i = 0; i < length; i++) { 8556 final SuggestionSpan suggestionSpan = suggestionSpans[i]; 8557 suggestionSpansStarts[i] = editable.getSpanStart(suggestionSpan); 8558 suggestionSpansEnds[i] = editable.getSpanEnd(suggestionSpan); 8559 suggestionSpansFlags[i] = editable.getSpanFlags(suggestionSpan); 8560 } 8561 8562 final int suggestionStart = suggestionInfo.suggestionStart; 8563 final int suggestionEnd = suggestionInfo.suggestionEnd; 8564 final String suggestion = textView.getText().subSequence( 8565 suggestionStart, suggestionEnd).toString(); 8566 final String originalText = mText.subSequence(spanStart, spanEnd).toString(); 8567 ((Editable) mText).replace(spanStart, spanEnd, suggestion); 8568 8569 // Swap text content between actual text and Suggestion span 8570 String[] suggestions = suggestionInfo.suggestionSpan.getSuggestions(); 8571 suggestions[suggestionInfo.suggestionIndex] = originalText; 8572 8573 // Notify source IME of the suggestion pick 8574 if (!TextUtils.isEmpty( 8575 suggestionInfo.suggestionSpan.getNotificationTargetClassName())) { 8576 InputMethodManager imm = InputMethodManager.peekInstance(); 8577 imm.notifySuggestionPicked(suggestionInfo.suggestionSpan, originalText, 8578 suggestionInfo.suggestionIndex); 8579 } 8580 8581 // Restore previous SuggestionSpans 8582 final int lengthDifference = suggestion.length() - (spanEnd - spanStart); 8583 for (int i = 0; i < length; i++) { 8584 // Only spans that include the modified region make sense after replacement 8585 // Spans partially included in the replaced region are removed, there is no 8586 // way to assign them a valid range after replacement 8587 if (suggestionSpansStarts[i] <= spanStart && 8588 suggestionSpansEnds[i] >= spanEnd) { 8589 editable.setSpan(suggestionSpans[i], suggestionSpansStarts[i], 8590 suggestionSpansEnds[i] + lengthDifference, 8591 suggestionSpansFlags[i]); 8592 } 8593 } 8594 } 8595 } 8596 hide(); 8597 } 8598 8599 void positionAtCursor() { 8600 View contentView = mContainer.getContentView(); 8601 int width = contentView.getMeasuredWidth(); 8602 int height = contentView.getMeasuredHeight(); 8603 final int offset = TextView.this.getSelectionStart(); 8604 final int line = mLayout.getLineForOffset(offset); 8605 final int lineBottom = mLayout.getLineBottom(line); 8606 float primaryHorizontal = mLayout.getPrimaryHorizontal(offset); 8607 8608 final Rect bounds = sCursorControllerTempRect; 8609 bounds.left = (int) (primaryHorizontal - width / 2.0f); 8610 bounds.top = lineBottom; 8611 8612 bounds.right = bounds.left + width; 8613 bounds.bottom = bounds.top + height; 8614 8615 convertFromViewportToContentCoordinates(bounds); 8616 8617 final int[] coords = mTempCoords; 8618 TextView.this.getLocationInWindow(coords); 8619 coords[0] += bounds.left; 8620 coords[1] += bounds.top; 8621 8622 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 8623 final int screenHeight = displayMetrics.heightPixels; 8624 8625 // Vertical clipping 8626 if (coords[1] + height > screenHeight) { 8627 // Try to position above current line instead 8628 // TODO use top layout instead, reverse suggestion order, 8629 // try full screen vertical down if it still does not fit. TBD with designers. 8630 8631 // Update dimensions from new view 8632 contentView = mContainer.getContentView(); 8633 width = contentView.getMeasuredWidth(); 8634 height = contentView.getMeasuredHeight(); 8635 8636 final int lineTop = mLayout.getLineTop(line); 8637 final int lineHeight = lineBottom - lineTop; 8638 coords[1] -= height + lineHeight; 8639 } 8640 8641 // Horizontal clipping 8642 coords[0] = Math.max(0, coords[0]); 8643 coords[0] = Math.min(displayMetrics.widthPixels - width, coords[0]); 8644 8645 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, coords[0], coords[1]); 8646 } 8647 } 8648 8649 void showSuggestions() { 8650 if (!mSuggestionsEnabled || !isTextEditable()) return; 8651 8652 if (mSuggestionsPopupWindow == null) { 8653 mSuggestionsPopupWindow = new SuggestionsPopupWindow(); 8654 } 8655 hideControllers(); 8656 mSuggestionsPopupWindow.show(); 8657 } 8658 8659 void hideSuggestions() { 8660 if (mSuggestionsPopupWindow != null) { 8661 mSuggestionsPopupWindow.hide(); 8662 } 8663 } 8664 8665 /** 8666 * Some parts of the text can have alternate suggestion text attached. This is typically done by 8667 * the IME by adding {@link SuggestionSpan}s to the text. 8668 * 8669 * When suggestions are enabled (default), this list of suggestions will be displayed when the 8670 * user double taps on these parts of the text. No suggestions are displayed when this value is 8671 * false. Use {@link #setSuggestionsEnabled(boolean)} to change this value. 8672 * 8673 * @return true if the suggestions popup window is enabled. 8674 * 8675 * @attr ref android.R.styleable#TextView_suggestionsEnabled 8676 */ 8677 public boolean isSuggestionsEnabled() { 8678 return mSuggestionsEnabled; 8679 } 8680 8681 /** 8682 * Enables or disables the suggestion popup. See {@link #isSuggestionsEnabled()}. 8683 * 8684 * @param enabled Whether or not suggestions are enabled. 8685 */ 8686 public void setSuggestionsEnabled(boolean enabled) { 8687 mSuggestionsEnabled = enabled; 8688 } 8689 8690 /** 8691 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 8692 * selection is initiated in this View. 8693 * 8694 * The standard implementation populates the menu with a subset of Select All, Cut, Copy and 8695 * Paste actions, depending on what this View supports. 8696 * 8697 * A custom implementation can add new entries in the default menu in its 8698 * {@link ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The default actions 8699 * can also be removed from the menu using {@link Menu#removeItem(int)} and passing 8700 * {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy} or 8701 * {@link android.R.id#paste} ids as parameters. 8702 * 8703 * Returning false from {@link ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will 8704 * prevent the action mode from being started. 8705 * 8706 * Action click events should be handled by the custom implementation of 8707 * {@link ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}. 8708 * 8709 * Note that text selection mode is not started when a TextView receives focus and the 8710 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 8711 * that case, to allow for quick replacement. 8712 */ 8713 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 8714 mCustomSelectionActionModeCallback = actionModeCallback; 8715 } 8716 8717 /** 8718 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 8719 * 8720 * @return The current custom selection callback. 8721 */ 8722 public ActionMode.Callback getCustomSelectionActionModeCallback() { 8723 return mCustomSelectionActionModeCallback; 8724 } 8725 8726 /** 8727 * 8728 * @return true if the selection mode was actually started. 8729 */ 8730 private boolean startSelectionActionMode() { 8731 if (mSelectionActionMode != null) { 8732 // Selection action mode is already started 8733 return false; 8734 } 8735 8736 if (!canSelectText() || !requestFocus()) { 8737 Log.w(LOG_TAG, "TextView does not support text selection. Action mode cancelled."); 8738 return false; 8739 } 8740 8741 if (!hasSelection()) { 8742 // There may already be a selection on device rotation 8743 boolean currentWordSelected = selectCurrentWord(); 8744 if (!currentWordSelected) { 8745 // No word found under cursor or text selection not permitted. 8746 return false; 8747 } 8748 } 8749 8750 ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); 8751 mSelectionActionMode = startActionMode(actionModeCallback); 8752 final boolean selectionStarted = mSelectionActionMode != null; 8753 8754 if (selectionStarted && !mTextIsSelectable) { 8755 // Show the IME to be able to replace text, except when selecting non editable text. 8756 final InputMethodManager imm = InputMethodManager.peekInstance(); 8757 if (imm != null) imm.showSoftInput(this, 0, null); 8758 } 8759 8760 return selectionStarted; 8761 } 8762 8763 private void stopSelectionActionMode() { 8764 if (mSelectionActionMode != null) { 8765 // This will hide the mSelectionModifierCursorController 8766 mSelectionActionMode.finish(); 8767 } 8768 } 8769 8770 /** 8771 * Paste clipboard content between min and max positions. 8772 */ 8773 private void paste(int min, int max) { 8774 ClipboardManager clipboard = 8775 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 8776 ClipData clip = clipboard.getPrimaryClip(); 8777 if (clip != null) { 8778 boolean didFirst = false; 8779 for (int i=0; i<clip.getItemCount(); i++) { 8780 CharSequence paste = clip.getItemAt(i).coerceToText(getContext()); 8781 if (paste != null) { 8782 if (!didFirst) { 8783 long minMax = prepareSpacesAroundPaste(min, max, paste); 8784 min = extractRangeStartFromLong(minMax); 8785 max = extractRangeEndFromLong(minMax); 8786 Selection.setSelection((Spannable) mText, max); 8787 ((Editable) mText).replace(min, max, paste); 8788 didFirst = true; 8789 } else { 8790 ((Editable) mText).insert(getSelectionEnd(), "\n"); 8791 ((Editable) mText).insert(getSelectionEnd(), paste); 8792 } 8793 } 8794 } 8795 stopSelectionActionMode(); 8796 sLastCutOrCopyTime = 0; 8797 } 8798 } 8799 8800 private void setPrimaryClip(ClipData clip) { 8801 ClipboardManager clipboard = (ClipboardManager) getContext(). 8802 getSystemService(Context.CLIPBOARD_SERVICE); 8803 clipboard.setPrimaryClip(clip); 8804 sLastCutOrCopyTime = SystemClock.uptimeMillis(); 8805 } 8806 8807 /** 8808 * An ActionMode Callback class that is used to provide actions while in text selection mode. 8809 * 8810 * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending 8811 * on which of these this TextView supports. 8812 */ 8813 private class SelectionActionModeCallback implements ActionMode.Callback { 8814 8815 @Override 8816 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 8817 TypedArray styledAttributes = mContext.obtainStyledAttributes(R.styleable.Theme); 8818 8819 boolean allowText = getContext().getResources().getBoolean( 8820 com.android.internal.R.bool.allow_action_menu_item_text_with_icon); 8821 8822 mode.setTitle(allowText ? 8823 mContext.getString(com.android.internal.R.string.textSelectionCABTitle) : null); 8824 mode.setSubtitle(null); 8825 8826 int selectAllIconId = 0; // No icon by default 8827 if (!allowText) { 8828 // Provide an icon, text will not be displayed on smaller screens. 8829 selectAllIconId = styledAttributes.getResourceId( 8830 R.styleable.Theme_actionModeSelectAllDrawable, 0); 8831 } 8832 8833 menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 8834 setIcon(selectAllIconId). 8835 setAlphabeticShortcut('a'). 8836 setShowAsAction( 8837 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8838 8839 if (canCut()) { 8840 menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut). 8841 setIcon(styledAttributes.getResourceId( 8842 R.styleable.Theme_actionModeCutDrawable, 0)). 8843 setAlphabeticShortcut('x'). 8844 setShowAsAction( 8845 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8846 } 8847 8848 if (canCopy()) { 8849 menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy). 8850 setIcon(styledAttributes.getResourceId( 8851 R.styleable.Theme_actionModeCopyDrawable, 0)). 8852 setAlphabeticShortcut('c'). 8853 setShowAsAction( 8854 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8855 } 8856 8857 if (canPaste()) { 8858 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 8859 setIcon(styledAttributes.getResourceId( 8860 R.styleable.Theme_actionModePasteDrawable, 0)). 8861 setAlphabeticShortcut('v'). 8862 setShowAsAction( 8863 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8864 } 8865 8866 styledAttributes.recycle(); 8867 8868 if (mCustomSelectionActionModeCallback != null) { 8869 if (!mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) { 8870 // The custom mode can choose to cancel the action mode 8871 return false; 8872 } 8873 } 8874 8875 if (menu.hasVisibleItems() || mode.getCustomView() != null) { 8876 getSelectionController().show(); 8877 return true; 8878 } else { 8879 return false; 8880 } 8881 } 8882 8883 @Override 8884 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 8885 if (mCustomSelectionActionModeCallback != null) { 8886 return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); 8887 } 8888 return true; 8889 } 8890 8891 @Override 8892 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 8893 if (mCustomSelectionActionModeCallback != null && 8894 mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { 8895 return true; 8896 } 8897 return onTextContextMenuItem(item.getItemId()); 8898 } 8899 8900 @Override 8901 public void onDestroyActionMode(ActionMode mode) { 8902 if (mCustomSelectionActionModeCallback != null) { 8903 mCustomSelectionActionModeCallback.onDestroyActionMode(mode); 8904 } 8905 Selection.setSelection((Spannable) mText, getSelectionEnd()); 8906 8907 if (mSelectionModifierCursorController != null) { 8908 mSelectionModifierCursorController.hide(); 8909 } 8910 8911 mSelectionActionMode = null; 8912 } 8913 } 8914 8915 private class PastePopupWindow implements OnClickListener { 8916 private final PopupWindow mContainer; 8917 private final View[] mPasteViews = new View[4]; 8918 private final int[] mPasteViewLayouts = new int[] { 8919 mTextEditPasteWindowLayout, mTextEditNoPasteWindowLayout, 8920 mTextEditSidePasteWindowLayout, mTextEditSideNoPasteWindowLayout }; 8921 8922 public PastePopupWindow() { 8923 mContainer = new PopupWindow(TextView.this.mContext, null, 8924 com.android.internal.R.attr.textSelectHandleWindowStyle); 8925 mContainer.setSplitTouchEnabled(true); 8926 mContainer.setClippingEnabled(false); 8927 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8928 8929 mContainer.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 8930 mContainer.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 8931 } 8932 8933 private int viewIndex(boolean onTop) { 8934 return (onTop ? 0 : 1<<1) + (canPaste() ? 0 : 1<<0); 8935 } 8936 8937 private void updateContent(boolean onTop) { 8938 final int viewIndex = viewIndex(onTop); 8939 View view = mPasteViews[viewIndex]; 8940 8941 if (view == null) { 8942 final int layout = mPasteViewLayouts[viewIndex]; 8943 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 8944 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 8945 if (inflater != null) { 8946 view = inflater.inflate(layout, null); 8947 } 8948 8949 if (view == null) { 8950 throw new IllegalArgumentException("Unable to inflate TextEdit paste window"); 8951 } 8952 8953 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8954 view.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 8955 ViewGroup.LayoutParams.WRAP_CONTENT)); 8956 view.measure(size, size); 8957 8958 view.setOnClickListener(this); 8959 8960 mPasteViews[viewIndex] = view; 8961 } 8962 8963 mContainer.setContentView(view); 8964 } 8965 8966 public void show() { 8967 updateContent(true); 8968 positionAtCursor(); 8969 } 8970 8971 public void hide() { 8972 mContainer.dismiss(); 8973 } 8974 8975 public boolean isShowing() { 8976 return mContainer.isShowing(); 8977 } 8978 8979 @Override 8980 public void onClick(View v) { 8981 if (canPaste()) { 8982 paste(getSelectionStart(), getSelectionEnd()); 8983 } 8984 hide(); 8985 } 8986 8987 void positionAtCursor() { 8988 View contentView = mContainer.getContentView(); 8989 int width = contentView.getMeasuredWidth(); 8990 int height = contentView.getMeasuredHeight(); 8991 final int offset = TextView.this.getSelectionStart(); 8992 final int line = mLayout.getLineForOffset(offset); 8993 final int lineTop = mLayout.getLineTop(line); 8994 float primaryHorizontal = mLayout.getPrimaryHorizontal(offset); 8995 8996 final Rect bounds = sCursorControllerTempRect; 8997 bounds.left = (int) (primaryHorizontal - width / 2.0f); 8998 bounds.top = lineTop - height; 8999 9000 bounds.right = bounds.left + width; 9001 bounds.bottom = bounds.top + height; 9002 9003 convertFromViewportToContentCoordinates(bounds); 9004 9005 final int[] coords = mTempCoords; 9006 TextView.this.getLocationInWindow(coords); 9007 coords[0] += bounds.left; 9008 coords[1] += bounds.top; 9009 9010 final int screenWidth = mContext.getResources().getDisplayMetrics().widthPixels; 9011 if (coords[1] < 0) { 9012 updateContent(false); 9013 // Update dimensions from new view 9014 contentView = mContainer.getContentView(); 9015 width = contentView.getMeasuredWidth(); 9016 height = contentView.getMeasuredHeight(); 9017 9018 // Vertical clipping, move under edited line and to the side of insertion cursor 9019 // TODO bottom clipping in case there is no system bar 9020 coords[1] += height; 9021 final int lineBottom = mLayout.getLineBottom(line); 9022 final int lineHeight = lineBottom - lineTop; 9023 coords[1] += lineHeight; 9024 9025 // Move to right hand side of insertion cursor by default. TODO RTL text. 9026 final Drawable handle = mContext.getResources().getDrawable(mTextSelectHandleRes); 9027 final int handleHalfWidth = handle.getIntrinsicWidth() / 2; 9028 9029 if (primaryHorizontal + handleHalfWidth + width < screenWidth) { 9030 coords[0] += handleHalfWidth + width / 2; 9031 } else { 9032 coords[0] -= handleHalfWidth + width / 2; 9033 } 9034 } else { 9035 // Horizontal clipping 9036 coords[0] = Math.max(0, coords[0]); 9037 coords[0] = Math.min(screenWidth - width, coords[0]); 9038 } 9039 9040 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, coords[0], coords[1]); 9041 } 9042 } 9043 9044 private abstract class HandleView extends View implements ViewTreeObserver.OnPreDrawListener { 9045 protected Drawable mDrawable; 9046 private final PopupWindow mContainer; 9047 // Position with respect to the parent TextView 9048 private int mPositionX, mPositionY; 9049 private boolean mIsDragging; 9050 // Offset from touch position to mPosition 9051 private float mTouchToWindowOffsetX, mTouchToWindowOffsetY; 9052 protected float mHotspotX; 9053 // Offsets the hotspot point up, so that cursor is not hidden by the finger when moving up 9054 private float mTouchOffsetY; 9055 // Where the touch position should be on the handle to ensure a maximum cursor visibility 9056 private float mIdealVerticalOffset; 9057 // Parent's (TextView) previous position in window 9058 private int mLastParentX, mLastParentY; 9059 // PopupWindow container absolute position with respect to the enclosing window 9060 private int mContainerPositionX, mContainerPositionY; 9061 // Visible or not (scrolled off screen), whether or not this handle should be visible 9062 private boolean mIsActive = false; 9063 // Used to detect that setFrame was called 9064 private boolean mNeedsUpdate = true; 9065 9066 public HandleView() { 9067 super(TextView.this.mContext); 9068 mContainer = new PopupWindow(TextView.this.mContext, null, 9069 com.android.internal.R.attr.textSelectHandleWindowStyle); 9070 mContainer.setSplitTouchEnabled(true); 9071 mContainer.setClippingEnabled(false); 9072 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 9073 mContainer.setContentView(this); 9074 9075 initDrawable(); 9076 9077 final int handleHeight = mDrawable.getIntrinsicHeight(); 9078 mTouchOffsetY = -0.3f * handleHeight; 9079 mIdealVerticalOffset = 0.7f * handleHeight; 9080 } 9081 9082 @Override 9083 protected boolean setFrame(int left, int top, int right, int bottom) { 9084 boolean changed = super.setFrame(left, top, right, bottom); 9085 // onPreDraw is called for PhoneWindow before the layout of this view is 9086 // performed. Make sure to update position, even if container didn't move. 9087 if (changed) mNeedsUpdate = true; 9088 return changed; 9089 } 9090 9091 protected abstract void initDrawable(); 9092 9093 // Touch-up filter: number of previous positions remembered 9094 private static final int HISTORY_SIZE = 5; 9095 private static final int TOUCH_UP_FILTER_DELAY_AFTER = 150; 9096 private static final int TOUCH_UP_FILTER_DELAY_BEFORE = 350; 9097 private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; 9098 private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; 9099 private int mPreviousOffsetIndex = 0; 9100 private int mNumberPreviousOffsets = 0; 9101 9102 private void startTouchUpFilter(int offset) { 9103 mNumberPreviousOffsets = 0; 9104 addPositionToTouchUpFilter(offset); 9105 } 9106 9107 private void addPositionToTouchUpFilter(int offset) { 9108 if (mNumberPreviousOffsets > 0 && 9109 mPreviousOffsets[mPreviousOffsetIndex] == offset) { 9110 // Make sure only actual changes of position are recorded. 9111 return; 9112 } 9113 9114 mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; 9115 mPreviousOffsets[mPreviousOffsetIndex] = offset; 9116 mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); 9117 mNumberPreviousOffsets++; 9118 } 9119 9120 private void filterOnTouchUp() { 9121 final long now = SystemClock.uptimeMillis(); 9122 int i = 0; 9123 int index = mPreviousOffsetIndex; 9124 final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); 9125 while (i < iMax && (now - mPreviousOffsetsTimes[index]) < TOUCH_UP_FILTER_DELAY_AFTER) { 9126 i++; 9127 index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; 9128 } 9129 9130 if (i > 0 && i < iMax && 9131 (now - mPreviousOffsetsTimes[index]) > TOUCH_UP_FILTER_DELAY_BEFORE) { 9132 updateOffset(mPreviousOffsets[index]); 9133 } 9134 } 9135 9136 @Override 9137 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 9138 setMeasuredDimension(mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight()); 9139 } 9140 9141 public void show() { 9142 if (isShowing()) { 9143 mContainer.update(mContainerPositionX, mContainerPositionY, 9144 mRight - mLeft, mBottom - mTop); 9145 } else { 9146 mContainer.showAtLocation(TextView.this, 0, 9147 mContainerPositionX, mContainerPositionY); 9148 9149 mIsActive = true; 9150 9151 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9152 vto.addOnPreDrawListener(this); 9153 } 9154 } 9155 9156 protected void dismiss() { 9157 mIsDragging = false; 9158 mContainer.dismiss(); 9159 } 9160 9161 public void hide() { 9162 dismiss(); 9163 9164 mIsActive = false; 9165 9166 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9167 vto.removeOnPreDrawListener(this); 9168 } 9169 9170 public boolean isShowing() { 9171 return mContainer.isShowing(); 9172 } 9173 9174 private boolean isPositionVisible() { 9175 // Always show a dragging handle. 9176 if (mIsDragging) { 9177 return true; 9178 } 9179 9180 if (isInBatchEditMode()) { 9181 return false; 9182 } 9183 9184 final int extendedPaddingTop = getExtendedPaddingTop(); 9185 final int extendedPaddingBottom = getExtendedPaddingBottom(); 9186 final int compoundPaddingLeft = getCompoundPaddingLeft(); 9187 final int compoundPaddingRight = getCompoundPaddingRight(); 9188 9189 final TextView textView = TextView.this; 9190 9191 if (mTempRect == null) mTempRect = new Rect(); 9192 final Rect clip = mTempRect; 9193 clip.left = compoundPaddingLeft; 9194 clip.top = extendedPaddingTop; 9195 clip.right = textView.getWidth() - compoundPaddingRight; 9196 clip.bottom = textView.getHeight() - extendedPaddingBottom; 9197 9198 final ViewParent parent = textView.getParent(); 9199 if (parent == null || !parent.getChildVisibleRect(textView, clip, null)) { 9200 return false; 9201 } 9202 9203 final int[] coords = mTempCoords; 9204 textView.getLocationInWindow(coords); 9205 final int posX = coords[0] + mPositionX + (int) mHotspotX; 9206 final int posY = coords[1] + mPositionY; 9207 9208 // Offset by 1 to take into account 0.5 and int rounding around getPrimaryHorizontal. 9209 return posX >= clip.left - 1 && posX <= clip.right + 1 && 9210 posY >= clip.top && posY <= clip.bottom; 9211 } 9212 9213 public abstract int getCurrentCursorOffset(); 9214 9215 public abstract void updateOffset(int offset); 9216 9217 public abstract void updatePosition(float x, float y); 9218 9219 protected void positionAtCursorOffset(int offset) { 9220 // A HandleView relies on the layout, which may be nulled by external methods. 9221 if (mLayout == null) { 9222 // Will update controllers' state, hiding them and stopping selection mode if needed 9223 prepareCursorControllers(); 9224 return; 9225 } 9226 9227 addPositionToTouchUpFilter(offset); 9228 final int line = mLayout.getLineForOffset(offset); 9229 final int lineBottom = mLayout.getLineBottom(line); 9230 9231 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX); 9232 mPositionY = lineBottom; 9233 9234 // Take TextView's padding into account. 9235 mPositionX += viewportToContentHorizontalOffset(); 9236 mPositionY += viewportToContentVerticalOffset(); 9237 } 9238 9239 private void checkForContainerPositionChange() { 9240 positionAtCursorOffset(getCurrentCursorOffset()); 9241 9242 final int previousContainerPositionX = mContainerPositionX; 9243 final int previousContainerPositionY = mContainerPositionY; 9244 9245 TextView.this.getLocationInWindow(mTempCoords); 9246 mContainerPositionX = mTempCoords[0] + mPositionX; 9247 mContainerPositionY = mTempCoords[1] + mPositionY; 9248 9249 mNeedsUpdate |= previousContainerPositionX != mContainerPositionX; 9250 mNeedsUpdate |= previousContainerPositionY != mContainerPositionY; 9251 } 9252 9253 public boolean onPreDraw() { 9254 checkForContainerPositionChange(); 9255 if (mNeedsUpdate) { 9256 if (mIsDragging) { 9257 if (mTempCoords[0] != mLastParentX || mTempCoords[1] != mLastParentY) { 9258 mTouchToWindowOffsetX += mTempCoords[0] - mLastParentX; 9259 mTouchToWindowOffsetY += mTempCoords[1] - mLastParentY; 9260 mLastParentX = mTempCoords[0]; 9261 mLastParentY = mTempCoords[1]; 9262 } 9263 } 9264 9265 onHandleMoved(); 9266 9267 if (isPositionVisible()) { 9268 mContainer.update(mContainerPositionX, mContainerPositionY, 9269 mRight - mLeft, mBottom - mTop); 9270 9271 if (mIsActive && !isShowing()) { 9272 show(); 9273 } 9274 } else { 9275 if (isShowing()) { 9276 dismiss(); 9277 } 9278 } 9279 mNeedsUpdate = false; 9280 } 9281 return true; 9282 } 9283 9284 @Override 9285 protected void onDraw(Canvas c) { 9286 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 9287 mDrawable.draw(c); 9288 } 9289 9290 @Override 9291 public boolean onTouchEvent(MotionEvent ev) { 9292 switch (ev.getActionMasked()) { 9293 case MotionEvent.ACTION_DOWN: { 9294 startTouchUpFilter(getCurrentCursorOffset()); 9295 mTouchToWindowOffsetX = ev.getRawX() - mPositionX; 9296 mTouchToWindowOffsetY = ev.getRawY() - mPositionY; 9297 9298 final int[] coords = mTempCoords; 9299 TextView.this.getLocationInWindow(coords); 9300 mLastParentX = coords[0]; 9301 mLastParentY = coords[1]; 9302 mIsDragging = true; 9303 break; 9304 } 9305 9306 case MotionEvent.ACTION_MOVE: { 9307 final float rawX = ev.getRawX(); 9308 final float rawY = ev.getRawY(); 9309 9310 // Vertical hysteresis: vertical down movement tends to snap to ideal offset 9311 final float previousVerticalOffset = mTouchToWindowOffsetY - mLastParentY; 9312 final float currentVerticalOffset = rawY - mPositionY - mLastParentY; 9313 float newVerticalOffset; 9314 if (previousVerticalOffset < mIdealVerticalOffset) { 9315 newVerticalOffset = Math.min(currentVerticalOffset, mIdealVerticalOffset); 9316 newVerticalOffset = Math.max(newVerticalOffset, previousVerticalOffset); 9317 } else { 9318 newVerticalOffset = Math.max(currentVerticalOffset, mIdealVerticalOffset); 9319 newVerticalOffset = Math.min(newVerticalOffset, previousVerticalOffset); 9320 } 9321 mTouchToWindowOffsetY = newVerticalOffset + mLastParentY; 9322 9323 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 9324 final float newPosY = rawY - mTouchToWindowOffsetY + mTouchOffsetY; 9325 9326 updatePosition(newPosX, newPosY); 9327 break; 9328 } 9329 9330 case MotionEvent.ACTION_UP: 9331 filterOnTouchUp(); 9332 mIsDragging = false; 9333 break; 9334 9335 case MotionEvent.ACTION_CANCEL: 9336 mIsDragging = false; 9337 break; 9338 } 9339 return true; 9340 } 9341 9342 public boolean isDragging() { 9343 return mIsDragging; 9344 } 9345 9346 void onHandleMoved() { 9347 // Does nothing by default 9348 } 9349 9350 public void onDetached() { 9351 // Should be overriden to clean possible Runnable 9352 } 9353 } 9354 9355 private class InsertionHandleView extends HandleView { 9356 private static final int DELAY_BEFORE_FADE_OUT = 4000; 9357 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds 9358 9359 // Used to detect taps on the insertion handle, which will affect the PastePopupWindow 9360 private float mDownPositionX, mDownPositionY; 9361 private PastePopupWindow mPastePopupWindow; 9362 private Runnable mHider; 9363 private Runnable mPastePopupShower; 9364 9365 @Override 9366 public void show() { 9367 super.show(); 9368 hideDelayed(); 9369 hidePastePopupWindow(); 9370 } 9371 9372 public void show(int delayBeforePaste) { 9373 show(); 9374 9375 final long durationSinceCutOrCopy = SystemClock.uptimeMillis() - sLastCutOrCopyTime; 9376 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 9377 delayBeforePaste = 0; 9378 } 9379 if (delayBeforePaste == 0 || canPaste()) { 9380 if (mPastePopupShower == null) { 9381 mPastePopupShower = new Runnable() { 9382 public void run() { 9383 showPastePopupWindow(); 9384 } 9385 }; 9386 } 9387 TextView.this.postDelayed(mPastePopupShower, delayBeforePaste); 9388 } 9389 } 9390 9391 @Override 9392 protected void dismiss() { 9393 super.dismiss(); 9394 onDetached(); 9395 } 9396 9397 private void hideDelayed() { 9398 removeHiderCallback(); 9399 if (mHider == null) { 9400 mHider = new Runnable() { 9401 public void run() { 9402 hide(); 9403 } 9404 }; 9405 } 9406 TextView.this.postDelayed(mHider, DELAY_BEFORE_FADE_OUT); 9407 } 9408 9409 private void removeHiderCallback() { 9410 if (mHider != null) { 9411 TextView.this.removeCallbacks(mHider); 9412 } 9413 } 9414 9415 @Override 9416 protected void initDrawable() { 9417 if (mSelectHandleCenter == null) { 9418 mSelectHandleCenter = mContext.getResources().getDrawable( 9419 mTextSelectHandleRes); 9420 } 9421 mDrawable = mSelectHandleCenter; 9422 mHotspotX = mDrawable.getIntrinsicWidth() / 2.0f; 9423 } 9424 9425 @Override 9426 public boolean onTouchEvent(MotionEvent ev) { 9427 final boolean result = super.onTouchEvent(ev); 9428 9429 switch (ev.getActionMasked()) { 9430 case MotionEvent.ACTION_DOWN: 9431 mDownPositionX = ev.getRawX(); 9432 mDownPositionY = ev.getRawY(); 9433 break; 9434 9435 case MotionEvent.ACTION_UP: 9436 final float deltaX = mDownPositionX - ev.getRawX(); 9437 final float deltaY = mDownPositionY - ev.getRawY(); 9438 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 9439 if (distanceSquared < mSquaredTouchSlopDistance) { 9440 if (mPastePopupWindow != null && mPastePopupWindow.isShowing()) { 9441 // Tapping on the handle dismisses the displayed paste view, 9442 mPastePopupWindow.hide(); 9443 } else { 9444 show(0); 9445 } 9446 } 9447 hideDelayed(); 9448 break; 9449 9450 case MotionEvent.ACTION_CANCEL: 9451 hideDelayed(); 9452 break; 9453 9454 default: 9455 break; 9456 } 9457 9458 return result; 9459 } 9460 9461 @Override 9462 public int getCurrentCursorOffset() { 9463 return TextView.this.getSelectionStart(); 9464 } 9465 9466 @Override 9467 public void updateOffset(int offset) { 9468 Selection.setSelection((Spannable) mText, offset); 9469 } 9470 9471 @Override 9472 public void updatePosition(float x, float y) { 9473 updateOffset(getOffsetForPosition(x, y)); 9474 } 9475 9476 void showPastePopupWindow() { 9477 if (mPastePopupWindow == null) { 9478 mPastePopupWindow = new PastePopupWindow(); 9479 } 9480 mPastePopupWindow.show(); 9481 } 9482 9483 @Override 9484 void onHandleMoved() { 9485 removeHiderCallback(); 9486 hidePastePopupWindow(); 9487 } 9488 9489 void hidePastePopupWindow() { 9490 if (mPastePopupShower != null) { 9491 TextView.this.removeCallbacks(mPastePopupShower); 9492 } 9493 if (mPastePopupWindow != null) { 9494 mPastePopupWindow.hide(); 9495 } 9496 } 9497 9498 @Override 9499 public void onDetached() { 9500 removeHiderCallback(); 9501 hidePastePopupWindow(); 9502 } 9503 } 9504 9505 private class SelectionStartHandleView extends HandleView { 9506 @Override 9507 protected void initDrawable() { 9508 if (mSelectHandleLeft == null) { 9509 mSelectHandleLeft = mContext.getResources().getDrawable( 9510 mTextSelectHandleLeftRes); 9511 } 9512 mDrawable = mSelectHandleLeft; 9513 mHotspotX = mDrawable.getIntrinsicWidth() * 3.0f / 4.0f; 9514 } 9515 9516 @Override 9517 public int getCurrentCursorOffset() { 9518 return TextView.this.getSelectionStart(); 9519 } 9520 9521 @Override 9522 public void updateOffset(int offset) { 9523 Selection.setSelection((Spannable) mText, offset, getSelectionEnd()); 9524 } 9525 9526 @Override 9527 public void updatePosition(float x, float y) { 9528 final int selectionStart = getSelectionStart(); 9529 final int selectionEnd = getSelectionEnd(); 9530 9531 int offset = getOffsetForPosition(x, y); 9532 9533 // No need to redraw when the offset is unchanged 9534 if (offset == selectionStart) return; 9535 // Handles can not cross and selection is at least one character 9536 if (offset >= selectionEnd) offset = selectionEnd - 1; 9537 9538 Selection.setSelection((Spannable) mText, offset, selectionEnd); 9539 } 9540 } 9541 9542 private class SelectionEndHandleView extends HandleView { 9543 @Override 9544 protected void initDrawable() { 9545 if (mSelectHandleRight == null) { 9546 mSelectHandleRight = mContext.getResources().getDrawable( 9547 mTextSelectHandleRightRes); 9548 } 9549 mDrawable = mSelectHandleRight; 9550 mHotspotX = mDrawable.getIntrinsicWidth() / 4.0f; 9551 } 9552 9553 @Override 9554 public int getCurrentCursorOffset() { 9555 return TextView.this.getSelectionEnd(); 9556 } 9557 9558 @Override 9559 public void updateOffset(int offset) { 9560 Selection.setSelection((Spannable) mText, getSelectionStart(), offset); 9561 } 9562 9563 @Override 9564 public void updatePosition(float x, float y) { 9565 final int selectionStart = getSelectionStart(); 9566 final int selectionEnd = getSelectionEnd(); 9567 9568 int offset = getOffsetForPosition(x, y); 9569 9570 // No need to redraw when the offset is unchanged 9571 if (offset == selectionEnd) return; 9572 // Handles can not cross and selection is at least one character 9573 if (offset <= selectionStart) offset = selectionStart + 1; 9574 9575 Selection.setSelection((Spannable) mText, selectionStart, offset); 9576 } 9577 } 9578 9579 /** 9580 * A CursorController instance can be used to control a cursor in the text. 9581 * It is not used outside of {@link TextView}. 9582 * @hide 9583 */ 9584 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 9585 /** 9586 * Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}. 9587 * See also {@link #hide()}. 9588 */ 9589 public void show(); 9590 9591 /** 9592 * Hide the cursor controller from screen. 9593 * See also {@link #show()}. 9594 */ 9595 public void hide(); 9596 9597 /** 9598 * This method is called by {@link #onTouchEvent(MotionEvent)} and gives the controller 9599 * a chance to become active and/or visible. 9600 * @param event The touch event 9601 */ 9602 public boolean onTouchEvent(MotionEvent event); 9603 9604 /** 9605 * Called when the view is detached from window. Perform house keeping task, such as 9606 * stopping Runnable thread that would otherwise keep a reference on the context, thus 9607 * preventing the activity from being recycled. 9608 */ 9609 public void onDetached(); 9610 } 9611 9612 private class InsertionPointCursorController implements CursorController { 9613 private static final int DELAY_BEFORE_PASTE = 2000; 9614 9615 private InsertionHandleView mHandle; 9616 9617 public void show() { 9618 ((InsertionHandleView) getHandle()).show(DELAY_BEFORE_PASTE); 9619 } 9620 9621 public void showWithPaste() { 9622 ((InsertionHandleView) getHandle()).show(0); 9623 } 9624 9625 public void hide() { 9626 if (mHandle != null) { 9627 mHandle.hide(); 9628 } 9629 } 9630 9631 public boolean onTouchEvent(MotionEvent ev) { 9632 return false; 9633 } 9634 9635 public void onTouchModeChanged(boolean isInTouchMode) { 9636 if (!isInTouchMode) { 9637 hide(); 9638 } 9639 } 9640 9641 private HandleView getHandle() { 9642 if (mHandle == null) { 9643 mHandle = new InsertionHandleView(); 9644 } 9645 return mHandle; 9646 } 9647 9648 @Override 9649 public void onDetached() { 9650 final ViewTreeObserver observer = getViewTreeObserver(); 9651 observer.removeOnTouchModeChangeListener(this); 9652 9653 if (mHandle != null) mHandle.onDetached(); 9654 } 9655 } 9656 9657 private class SelectionModifierCursorController implements CursorController { 9658 // The cursor controller handles, lazily created when shown. 9659 private SelectionStartHandleView mStartHandle; 9660 private SelectionEndHandleView mEndHandle; 9661 // The offsets of that last touch down event. Remembered to start selection there. 9662 private int mMinTouchOffset, mMaxTouchOffset; 9663 9664 // Double tap detection 9665 private long mPreviousTapUpTime = 0; 9666 private float mPreviousTapPositionX, mPreviousTapPositionY; 9667 9668 SelectionModifierCursorController() { 9669 resetTouchOffsets(); 9670 } 9671 9672 public void show() { 9673 if (isInBatchEditMode()) { 9674 return; 9675 } 9676 9677 // Lazy object creation has to be done before updatePosition() is called. 9678 if (mStartHandle == null) mStartHandle = new SelectionStartHandleView(); 9679 if (mEndHandle == null) mEndHandle = new SelectionEndHandleView(); 9680 9681 mStartHandle.show(); 9682 mEndHandle.show(); 9683 9684 hideInsertionPointCursorController(); 9685 hideSuggestions(); 9686 } 9687 9688 public void hide() { 9689 if (mStartHandle != null) mStartHandle.hide(); 9690 if (mEndHandle != null) mEndHandle.hide(); 9691 } 9692 9693 public boolean onTouchEvent(MotionEvent event) { 9694 // This is done even when the View does not have focus, so that long presses can start 9695 // selection and tap can move cursor from this tap position. 9696 if (isTextEditable() || mTextIsSelectable) { 9697 switch (event.getActionMasked()) { 9698 case MotionEvent.ACTION_DOWN: 9699 final float x = event.getX(); 9700 final float y = event.getY(); 9701 9702 // Remember finger down position, to be able to start selection from there 9703 mMinTouchOffset = mMaxTouchOffset = getOffsetForPosition(x, y); 9704 9705 // Double tap detection 9706 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 9707 if (duration <= ViewConfiguration.getDoubleTapTimeout() && 9708 isPositionOnText(x, y)) { 9709 final float deltaX = x - mPreviousTapPositionX; 9710 final float deltaY = y - mPreviousTapPositionY; 9711 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 9712 if (distanceSquared < mSquaredTouchSlopDistance) { 9713 showSuggestions(); 9714 mDiscardNextActionUp = true; 9715 } 9716 } 9717 9718 mPreviousTapPositionX = x; 9719 mPreviousTapPositionY = y; 9720 9721 break; 9722 9723 case MotionEvent.ACTION_POINTER_DOWN: 9724 case MotionEvent.ACTION_POINTER_UP: 9725 // Handle multi-point gestures. Keep min and max offset positions. 9726 // Only activated for devices that correctly handle multi-touch. 9727 if (mContext.getPackageManager().hasSystemFeature( 9728 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 9729 updateMinAndMaxOffsets(event); 9730 } 9731 break; 9732 9733 case MotionEvent.ACTION_UP: 9734 mPreviousTapUpTime = SystemClock.uptimeMillis(); 9735 break; 9736 } 9737 } 9738 return false; 9739 } 9740 9741 /** 9742 * @param event 9743 */ 9744 private void updateMinAndMaxOffsets(MotionEvent event) { 9745 int pointerCount = event.getPointerCount(); 9746 for (int index = 0; index < pointerCount; index++) { 9747 int offset = getOffsetForPosition(event.getX(index), event.getY(index)); 9748 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 9749 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 9750 } 9751 } 9752 9753 public int getMinTouchOffset() { 9754 return mMinTouchOffset; 9755 } 9756 9757 public int getMaxTouchOffset() { 9758 return mMaxTouchOffset; 9759 } 9760 9761 public void resetTouchOffsets() { 9762 mMinTouchOffset = mMaxTouchOffset = -1; 9763 } 9764 9765 /** 9766 * @return true iff this controller is currently used to move the selection start. 9767 */ 9768 public boolean isSelectionStartDragged() { 9769 return mStartHandle != null && mStartHandle.isDragging(); 9770 } 9771 9772 public void onTouchModeChanged(boolean isInTouchMode) { 9773 if (!isInTouchMode) { 9774 hide(); 9775 } 9776 } 9777 9778 @Override 9779 public void onDetached() { 9780 final ViewTreeObserver observer = getViewTreeObserver(); 9781 observer.removeOnTouchModeChangeListener(this); 9782 9783 if (mStartHandle != null) mStartHandle.onDetached(); 9784 if (mEndHandle != null) mEndHandle.onDetached(); 9785 } 9786 } 9787 9788 private void hideInsertionPointCursorController() { 9789 // No need to create the controller to hide it. 9790 if (mInsertionPointCursorController != null) { 9791 mInsertionPointCursorController.hide(); 9792 } 9793 } 9794 9795 /** 9796 * Hides the insertion controller and stops text selection mode, hiding the selection controller 9797 */ 9798 private void hideControllers() { 9799 hideInsertionPointCursorController(); 9800 stopSelectionActionMode(); 9801 hideSuggestions(); 9802 } 9803 9804 /** 9805 * Get the character offset closest to the specified absolute position. A typical use case is to 9806 * pass the result of {@link MotionEvent#getX()} and {@link MotionEvent#getY()} to this method. 9807 * 9808 * @param x The horizontal absolute position of a point on screen 9809 * @param y The vertical absolute position of a point on screen 9810 * @return the character offset for the character whose position is closest to the specified 9811 * position. Returns -1 if there is no layout. 9812 */ 9813 public int getOffsetForPosition(float x, float y) { 9814 if (getLayout() == null) return -1; 9815 final int line = getLineAtCoordinate(y); 9816 final int offset = getOffsetAtCoordinate(line, x); 9817 return offset; 9818 } 9819 9820 private float convertToLocalHorizontalCoordinate(float x) { 9821 x -= getTotalPaddingLeft(); 9822 // Clamp the position to inside of the view. 9823 x = Math.max(0.0f, x); 9824 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 9825 x += getScrollX(); 9826 return x; 9827 } 9828 9829 private int getLineAtCoordinate(float y) { 9830 y -= getTotalPaddingTop(); 9831 // Clamp the position to inside of the view. 9832 y = Math.max(0.0f, y); 9833 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 9834 y += getScrollY(); 9835 return getLayout().getLineForVertical((int) y); 9836 } 9837 9838 private int getOffsetAtCoordinate(int line, float x) { 9839 x = convertToLocalHorizontalCoordinate(x); 9840 return getLayout().getOffsetForHorizontal(line, x); 9841 } 9842 9843 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 9844 * in the view. Returns false when the position is in the empty space of left/right of text. 9845 */ 9846 private boolean isPositionOnText(float x, float y) { 9847 if (getLayout() == null) return false; 9848 9849 final int line = getLineAtCoordinate(y); 9850 x = convertToLocalHorizontalCoordinate(x); 9851 9852 if (x < getLayout().getLineLeft(line)) return false; 9853 if (x > getLayout().getLineRight(line)) return false; 9854 return true; 9855 } 9856 9857 @Override 9858 public boolean onDragEvent(DragEvent event) { 9859 switch (event.getAction()) { 9860 case DragEvent.ACTION_DRAG_STARTED: 9861 return hasInsertionController(); 9862 9863 case DragEvent.ACTION_DRAG_ENTERED: 9864 TextView.this.requestFocus(); 9865 return true; 9866 9867 case DragEvent.ACTION_DRAG_LOCATION: 9868 final int offset = getOffsetForPosition(event.getX(), event.getY()); 9869 Selection.setSelection((Spannable)mText, offset); 9870 return true; 9871 9872 case DragEvent.ACTION_DROP: 9873 onDrop(event); 9874 return true; 9875 9876 case DragEvent.ACTION_DRAG_ENDED: 9877 case DragEvent.ACTION_DRAG_EXITED: 9878 default: 9879 return true; 9880 } 9881 } 9882 9883 private void onDrop(DragEvent event) { 9884 StringBuilder content = new StringBuilder(""); 9885 ClipData clipData = event.getClipData(); 9886 final int itemCount = clipData.getItemCount(); 9887 for (int i=0; i < itemCount; i++) { 9888 Item item = clipData.getItemAt(i); 9889 content.append(item.coerceToText(TextView.this.mContext)); 9890 } 9891 9892 final int offset = getOffsetForPosition(event.getX(), event.getY()); 9893 9894 Object localState = event.getLocalState(); 9895 DragLocalState dragLocalState = null; 9896 if (localState instanceof DragLocalState) { 9897 dragLocalState = (DragLocalState) localState; 9898 } 9899 boolean dragDropIntoItself = dragLocalState != null && 9900 dragLocalState.sourceTextView == this; 9901 9902 if (dragDropIntoItself) { 9903 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 9904 // A drop inside the original selection discards the drop. 9905 return; 9906 } 9907 } 9908 9909 final int originalLength = mText.length(); 9910 long minMax = prepareSpacesAroundPaste(offset, offset, content); 9911 int min = extractRangeStartFromLong(minMax); 9912 int max = extractRangeEndFromLong(minMax); 9913 9914 Selection.setSelection((Spannable) mText, max); 9915 ((Editable) mText).replace(min, max, content); 9916 9917 if (dragDropIntoItself) { 9918 int dragSourceStart = dragLocalState.start; 9919 int dragSourceEnd = dragLocalState.end; 9920 if (max <= dragSourceStart) { 9921 // Inserting text before selection has shifted positions 9922 final int shift = mText.length() - originalLength; 9923 dragSourceStart += shift; 9924 dragSourceEnd += shift; 9925 } 9926 9927 // Delete original selection 9928 ((Editable) mText).delete(dragSourceStart, dragSourceEnd); 9929 9930 // Make sure we do not leave two adjacent spaces. 9931 if ((dragSourceStart == 0 || 9932 Character.isSpaceChar(mTransformed.charAt(dragSourceStart - 1))) && 9933 (dragSourceStart == mText.length() || 9934 Character.isSpaceChar(mTransformed.charAt(dragSourceStart)))) { 9935 final int pos = dragSourceStart == mText.length() ? 9936 dragSourceStart - 1 : dragSourceStart; 9937 ((Editable) mText).delete(pos, pos + 1); 9938 } 9939 } 9940 } 9941 9942 /** 9943 * @return True if this view supports insertion handles. 9944 */ 9945 boolean hasInsertionController() { 9946 return mInsertionControllerEnabled; 9947 } 9948 9949 /** 9950 * @return True if this view supports selection handles. 9951 */ 9952 boolean hasSelectionController() { 9953 return mSelectionControllerEnabled; 9954 } 9955 9956 InsertionPointCursorController getInsertionController() { 9957 if (!mInsertionControllerEnabled) { 9958 return null; 9959 } 9960 9961 if (mInsertionPointCursorController == null) { 9962 mInsertionPointCursorController = new InsertionPointCursorController(); 9963 9964 final ViewTreeObserver observer = getViewTreeObserver(); 9965 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 9966 } 9967 9968 return mInsertionPointCursorController; 9969 } 9970 9971 SelectionModifierCursorController getSelectionController() { 9972 if (!mSelectionControllerEnabled) { 9973 return null; 9974 } 9975 9976 if (mSelectionModifierCursorController == null) { 9977 mSelectionModifierCursorController = new SelectionModifierCursorController(); 9978 9979 final ViewTreeObserver observer = getViewTreeObserver(); 9980 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 9981 } 9982 9983 return mSelectionModifierCursorController; 9984 } 9985 9986 boolean isInBatchEditMode() { 9987 final InputMethodState ims = mInputMethodState; 9988 if (ims != null) { 9989 return ims.mBatchEditNesting > 0; 9990 } 9991 return mInBatchEditControllers; 9992 } 9993 9994 @ViewDebug.ExportedProperty(category = "text") 9995 private CharSequence mText; 9996 private CharSequence mTransformed; 9997 private BufferType mBufferType = BufferType.NORMAL; 9998 9999 private int mInputType = EditorInfo.TYPE_NULL; 10000 private CharSequence mHint; 10001 private Layout mHintLayout; 10002 10003 private KeyListener mInput; 10004 10005 private MovementMethod mMovement; 10006 private TransformationMethod mTransformation; 10007 private ChangeWatcher mChangeWatcher; 10008 10009 private ArrayList<TextWatcher> mListeners = null; 10010 10011 // display attributes 10012 private final TextPaint mTextPaint; 10013 private boolean mUserSetTextScaleX; 10014 private final Paint mHighlightPaint; 10015 private int mHighlightColor = 0xCC475925; 10016 /** 10017 * This is temporarily visible to fix bug 3085564 in webView. Do not rely on 10018 * this field being protected. Will be restored as private when lineHeight 10019 * feature request 3215097 is implemented 10020 * @hide 10021 */ 10022 protected Layout mLayout; 10023 10024 private long mShowCursor; 10025 private Blink mBlink; 10026 private boolean mCursorVisible = true; 10027 10028 // Cursor Controllers. 10029 private InsertionPointCursorController mInsertionPointCursorController; 10030 private SelectionModifierCursorController mSelectionModifierCursorController; 10031 private ActionMode mSelectionActionMode; 10032 private boolean mInsertionControllerEnabled; 10033 private boolean mSelectionControllerEnabled; 10034 private boolean mInBatchEditControllers; 10035 10036 // These are needed to desambiguate a long click. If the long click comes from ones of these, we 10037 // select from the current cursor position. Otherwise, select from long pressed position. 10038 private boolean mDPadCenterIsDown = false; 10039 private boolean mEnterKeyIsDown = false; 10040 private boolean mContextMenuTriggeredByKey = false; 10041 // Created once and shared by different CursorController helper methods. 10042 // Only one cursor controller is active at any time which prevent race conditions. 10043 private static Rect sCursorControllerTempRect = new Rect(); 10044 10045 private boolean mSelectAllOnFocus = false; 10046 10047 private int mGravity = Gravity.TOP | Gravity.START; 10048 private boolean mHorizontallyScrolling; 10049 10050 private int mAutoLinkMask; 10051 private boolean mLinksClickable = true; 10052 10053 private float mSpacingMult = 1; 10054 private float mSpacingAdd = 0; 10055 private boolean mTextIsSelectable = false; 10056 10057 private static final int LINES = 1; 10058 private static final int EMS = LINES; 10059 private static final int PIXELS = 2; 10060 10061 private int mMaximum = Integer.MAX_VALUE; 10062 private int mMaxMode = LINES; 10063 private int mMinimum = 0; 10064 private int mMinMode = LINES; 10065 10066 private int mMaxWidth = Integer.MAX_VALUE; 10067 private int mMaxWidthMode = PIXELS; 10068 private int mMinWidth = 0; 10069 private int mMinWidthMode = PIXELS; 10070 10071 private boolean mSingleLine; 10072 private int mDesiredHeightAtMeasure = -1; 10073 private boolean mIncludePad = true; 10074 10075 // tmp primitives, so we don't alloc them on each draw 10076 private Path mHighlightPath; 10077 private boolean mHighlightPathBogus = true; 10078 private static final RectF sTempRect = new RectF(); 10079 10080 // XXX should be much larger 10081 private static final int VERY_WIDE = 16384; 10082 10083 private static final int BLINK = 500; 10084 10085 private static final int ANIMATED_SCROLL_GAP = 250; 10086 private long mLastScroll; 10087 private Scroller mScroller = null; 10088 10089 private BoringLayout.Metrics mBoring; 10090 private BoringLayout.Metrics mHintBoring; 10091 10092 private BoringLayout mSavedLayout, mSavedHintLayout; 10093 10094 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 10095 private InputFilter[] mFilters = NO_FILTERS; 10096 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 10097 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 10098 // System wide time for last cut or copy action. 10099 private static long sLastCutOrCopyTime; 10100 // Used to highlight a word when it is corrected by the IME 10101 private CorrectionHighlighter mCorrectionHighlighter; 10102 // New state used to change background based on whether this TextView is multiline. 10103 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 10104} 10105