TextView.java revision 939ccad344c5f32bc9e7dbfa80648c1e75cac62a
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 com.android.internal.util.FastMath; 20import com.android.internal.widget.EditableInputConnection; 21 22import org.xmlpull.v1.XmlPullParserException; 23 24import android.R; 25import android.content.ClipData; 26import android.content.ClipData.Item; 27import android.content.ClipboardManager; 28import android.content.Context; 29import android.content.pm.PackageManager; 30import android.content.res.ColorStateList; 31import android.content.res.Resources; 32import android.content.res.TypedArray; 33import android.content.res.XmlResourceParser; 34import android.graphics.Canvas; 35import android.graphics.Color; 36import android.graphics.Paint; 37import android.graphics.Path; 38import android.graphics.Rect; 39import android.graphics.RectF; 40import android.graphics.Typeface; 41import android.graphics.drawable.Drawable; 42import android.inputmethodservice.ExtractEditText; 43import android.net.Uri; 44import android.os.Bundle; 45import android.os.Handler; 46import android.os.Message; 47import android.os.Parcel; 48import android.os.Parcelable; 49import android.os.SystemClock; 50import android.text.BoringLayout; 51import android.text.DynamicLayout; 52import android.text.Editable; 53import android.text.GetChars; 54import android.text.GraphicsOperations; 55import android.text.InputFilter; 56import android.text.InputType; 57import android.text.Layout; 58import android.text.ParcelableSpan; 59import android.text.Selection; 60import android.text.SpanWatcher; 61import android.text.Spannable; 62import android.text.SpannableString; 63import android.text.SpannableStringBuilder; 64import android.text.Spanned; 65import android.text.SpannedString; 66import android.text.StaticLayout; 67import android.text.TextPaint; 68import android.text.TextUtils; 69import android.text.TextWatcher; 70import android.text.method.ArrowKeyMovementMethod; 71import android.text.method.DateKeyListener; 72import android.text.method.DateTimeKeyListener; 73import android.text.method.DialerKeyListener; 74import android.text.method.DigitsKeyListener; 75import android.text.method.KeyListener; 76import android.text.method.LinkMovementMethod; 77import android.text.method.MetaKeyKeyListener; 78import android.text.method.MovementMethod; 79import android.text.method.PasswordTransformationMethod; 80import android.text.method.SingleLineTransformationMethod; 81import android.text.method.TextKeyListener; 82import android.text.method.TimeKeyListener; 83import android.text.method.TransformationMethod; 84import android.text.method.WordIterator; 85import android.text.style.ClickableSpan; 86import android.text.style.ParagraphStyle; 87import android.text.style.SuggestionSpan; 88import android.text.style.TextAppearanceSpan; 89import android.text.style.URLSpan; 90import android.text.style.UnderlineSpan; 91import android.text.style.UpdateAppearance; 92import android.text.util.Linkify; 93import android.util.AttributeSet; 94import android.util.DisplayMetrics; 95import android.util.FloatMath; 96import android.util.Log; 97import android.util.TypedValue; 98import android.view.ActionMode; 99import android.view.ActionMode.Callback; 100import android.view.ContextMenu; 101import android.view.DragEvent; 102import android.view.Gravity; 103import android.view.HapticFeedbackConstants; 104import android.view.KeyCharacterMap; 105import android.view.KeyEvent; 106import android.view.LayoutInflater; 107import android.view.Menu; 108import android.view.MenuItem; 109import android.view.MotionEvent; 110import android.view.View; 111import android.view.ViewConfiguration; 112import android.view.ViewDebug; 113import android.view.ViewGroup; 114import android.view.ViewGroup.LayoutParams; 115import android.view.ViewParent; 116import android.view.ViewRoot; 117import android.view.ViewTreeObserver; 118import android.view.WindowManager; 119import android.view.accessibility.AccessibilityEvent; 120import android.view.accessibility.AccessibilityManager; 121import android.view.animation.AnimationUtils; 122import android.view.inputmethod.BaseInputConnection; 123import android.view.inputmethod.CompletionInfo; 124import android.view.inputmethod.CorrectionInfo; 125import android.view.inputmethod.EditorInfo; 126import android.view.inputmethod.ExtractedText; 127import android.view.inputmethod.ExtractedTextRequest; 128import android.view.inputmethod.InputConnection; 129import android.view.inputmethod.InputMethodManager; 130import android.widget.RemoteViews.RemoteView; 131 132import java.io.IOException; 133import java.lang.ref.WeakReference; 134import java.text.BreakIterator; 135import java.util.ArrayList; 136 137/** 138 * Displays text to the user and optionally allows them to edit it. A TextView 139 * is a complete text editor, however the basic class is configured to not 140 * allow editing; see {@link EditText} for a subclass that configures the text 141 * view for editing. 142 * 143 * <p> 144 * <b>XML attributes</b> 145 * <p> 146 * See {@link android.R.styleable#TextView TextView Attributes}, 147 * {@link android.R.styleable#View View Attributes} 148 * 149 * @attr ref android.R.styleable#TextView_text 150 * @attr ref android.R.styleable#TextView_bufferType 151 * @attr ref android.R.styleable#TextView_hint 152 * @attr ref android.R.styleable#TextView_textColor 153 * @attr ref android.R.styleable#TextView_textColorHighlight 154 * @attr ref android.R.styleable#TextView_textColorHint 155 * @attr ref android.R.styleable#TextView_textAppearance 156 * @attr ref android.R.styleable#TextView_textColorLink 157 * @attr ref android.R.styleable#TextView_textSize 158 * @attr ref android.R.styleable#TextView_textScaleX 159 * @attr ref android.R.styleable#TextView_typeface 160 * @attr ref android.R.styleable#TextView_textStyle 161 * @attr ref android.R.styleable#TextView_cursorVisible 162 * @attr ref android.R.styleable#TextView_maxLines 163 * @attr ref android.R.styleable#TextView_maxHeight 164 * @attr ref android.R.styleable#TextView_lines 165 * @attr ref android.R.styleable#TextView_height 166 * @attr ref android.R.styleable#TextView_minLines 167 * @attr ref android.R.styleable#TextView_minHeight 168 * @attr ref android.R.styleable#TextView_maxEms 169 * @attr ref android.R.styleable#TextView_maxWidth 170 * @attr ref android.R.styleable#TextView_ems 171 * @attr ref android.R.styleable#TextView_width 172 * @attr ref android.R.styleable#TextView_minEms 173 * @attr ref android.R.styleable#TextView_minWidth 174 * @attr ref android.R.styleable#TextView_gravity 175 * @attr ref android.R.styleable#TextView_scrollHorizontally 176 * @attr ref android.R.styleable#TextView_password 177 * @attr ref android.R.styleable#TextView_singleLine 178 * @attr ref android.R.styleable#TextView_selectAllOnFocus 179 * @attr ref android.R.styleable#TextView_includeFontPadding 180 * @attr ref android.R.styleable#TextView_maxLength 181 * @attr ref android.R.styleable#TextView_shadowColor 182 * @attr ref android.R.styleable#TextView_shadowDx 183 * @attr ref android.R.styleable#TextView_shadowDy 184 * @attr ref android.R.styleable#TextView_shadowRadius 185 * @attr ref android.R.styleable#TextView_autoLink 186 * @attr ref android.R.styleable#TextView_linksClickable 187 * @attr ref android.R.styleable#TextView_numeric 188 * @attr ref android.R.styleable#TextView_digits 189 * @attr ref android.R.styleable#TextView_phoneNumber 190 * @attr ref android.R.styleable#TextView_inputMethod 191 * @attr ref android.R.styleable#TextView_capitalize 192 * @attr ref android.R.styleable#TextView_autoText 193 * @attr ref android.R.styleable#TextView_editable 194 * @attr ref android.R.styleable#TextView_freezesText 195 * @attr ref android.R.styleable#TextView_ellipsize 196 * @attr ref android.R.styleable#TextView_drawableTop 197 * @attr ref android.R.styleable#TextView_drawableBottom 198 * @attr ref android.R.styleable#TextView_drawableRight 199 * @attr ref android.R.styleable#TextView_drawableLeft 200 * @attr ref android.R.styleable#TextView_drawablePadding 201 * @attr ref android.R.styleable#TextView_lineSpacingExtra 202 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 203 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 204 * @attr ref android.R.styleable#TextView_inputType 205 * @attr ref android.R.styleable#TextView_imeOptions 206 * @attr ref android.R.styleable#TextView_privateImeOptions 207 * @attr ref android.R.styleable#TextView_imeActionLabel 208 * @attr ref android.R.styleable#TextView_imeActionId 209 * @attr ref android.R.styleable#TextView_editorExtras 210 */ 211@RemoteView 212public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 213 static final String LOG_TAG = "TextView"; 214 static final boolean DEBUG_EXTRACT = false; 215 216 private static final int PRIORITY = 100; 217 private int mCurrentAlpha = 255; 218 219 final int[] mTempCoords = new int[2]; 220 Rect mTempRect; 221 222 private ColorStateList mTextColor; 223 private int mCurTextColor; 224 private ColorStateList mHintTextColor; 225 private ColorStateList mLinkTextColor; 226 private int mCurHintTextColor; 227 private boolean mFreezesText; 228 private boolean mFrozenWithFocus; 229 private boolean mTemporaryDetach; 230 private boolean mDispatchTemporaryDetach; 231 232 private boolean mDiscardNextActionUp = false; 233 private boolean mIgnoreActionUpEvent = false; 234 235 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 236 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 237 238 private float mShadowRadius, mShadowDx, mShadowDy; 239 240 private static final int PREDRAW_NOT_REGISTERED = 0; 241 private static final int PREDRAW_PENDING = 1; 242 private static final int PREDRAW_DONE = 2; 243 private int mPreDrawState = PREDRAW_NOT_REGISTERED; 244 245 private TextUtils.TruncateAt mEllipsize = null; 246 247 // Enum for the "typeface" XML parameter. 248 // TODO: How can we get this from the XML instead of hardcoding it here? 249 private static final int SANS = 1; 250 private static final int SERIF = 2; 251 private static final int MONOSPACE = 3; 252 253 // Bitfield for the "numeric" XML parameter. 254 // TODO: How can we get this from the XML instead of hardcoding it here? 255 private static final int SIGNED = 2; 256 private static final int DECIMAL = 4; 257 258 class Drawables { 259 final Rect mCompoundRect = new Rect(); 260 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight; 261 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight; 262 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight; 263 int mDrawablePadding; 264 } 265 private Drawables mDrawables; 266 267 private CharSequence mError; 268 private boolean mErrorWasChanged; 269 private ErrorPopup mPopup; 270 /** 271 * This flag is set if the TextView tries to display an error before it 272 * is attached to the window (so its position is still unknown). 273 * It causes the error to be shown later, when onAttachedToWindow() 274 * is called. 275 */ 276 private boolean mShowErrorAfterAttach; 277 278 private CharWrapper mCharWrapper = null; 279 280 private boolean mSelectionMoved = false; 281 private boolean mTouchFocusSelected = false; 282 283 private Marquee mMarquee; 284 private boolean mRestartMarquee; 285 286 private int mMarqueeRepeatLimit = 3; 287 288 class InputContentType { 289 int imeOptions = EditorInfo.IME_NULL; 290 String privateImeOptions; 291 CharSequence imeActionLabel; 292 int imeActionId; 293 Bundle extras; 294 OnEditorActionListener onEditorActionListener; 295 boolean enterDown; 296 } 297 InputContentType mInputContentType; 298 299 class InputMethodState { 300 Rect mCursorRectInWindow = new Rect(); 301 RectF mTmpRectF = new RectF(); 302 float[] mTmpOffset = new float[2]; 303 ExtractedTextRequest mExtracting; 304 final ExtractedText mTmpExtracted = new ExtractedText(); 305 int mBatchEditNesting; 306 boolean mCursorChanged; 307 boolean mSelectionModeChanged; 308 boolean mContentChanged; 309 int mChangedStart, mChangedEnd, mChangedDelta; 310 } 311 InputMethodState mInputMethodState; 312 313 private int mTextSelectHandleLeftRes; 314 private int mTextSelectHandleRightRes; 315 private int mTextSelectHandleRes; 316 private int mTextEditPasteWindowLayout, mTextEditSidePasteWindowLayout; 317 private int mTextEditNoPasteWindowLayout, mTextEditSideNoPasteWindowLayout; 318 319 private int mTextEditSuggestionsBottomWindowLayout, mTextEditSuggestionsTopWindowLayout; 320 private int mTextEditSuggestionItemLayout; 321 private SuggestionsPopupWindow mSuggestionsPopupWindow; 322 private SuggestionRangeSpan mSuggestionRangeSpan; 323 324 private int mCursorDrawableRes; 325 private final Drawable[] mCursorDrawable = new Drawable[2]; 326 private int mCursorCount; // Actual current number of used mCursorDrawable: 0, 1 or 2 327 328 private Drawable mSelectHandleLeft; 329 private Drawable mSelectHandleRight; 330 private Drawable mSelectHandleCenter; 331 332 private int mLastDownPositionX, mLastDownPositionY; 333 private Callback mCustomSelectionActionModeCallback; 334 335 private final int mSquaredTouchSlopDistance; 336 // Set when this TextView gained focus with some text selected. Will start selection mode. 337 private boolean mCreatedWithASelection = false; 338 339 private WordIterator mWordIterator; 340 341 /* 342 * Kick-start the font cache for the zygote process (to pay the cost of 343 * initializing freetype for our default font only once). 344 */ 345 static { 346 Paint p = new Paint(); 347 p.setAntiAlias(true); 348 // We don't care about the result, just the side-effect of measuring. 349 p.measureText("H"); 350 } 351 352 /** 353 * Interface definition for a callback to be invoked when an action is 354 * performed on the editor. 355 */ 356 public interface OnEditorActionListener { 357 /** 358 * Called when an action is being performed. 359 * 360 * @param v The view that was clicked. 361 * @param actionId Identifier of the action. This will be either the 362 * identifier you supplied, or {@link EditorInfo#IME_NULL 363 * EditorInfo.IME_NULL} if being called due to the enter key 364 * being pressed. 365 * @param event If triggered by an enter key, this is the event; 366 * otherwise, this is null. 367 * @return Return true if you have consumed the action, else false. 368 */ 369 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 370 } 371 372 public TextView(Context context) { 373 this(context, null); 374 } 375 376 public TextView(Context context, 377 AttributeSet attrs) { 378 this(context, attrs, com.android.internal.R.attr.textViewStyle); 379 } 380 381 @SuppressWarnings("deprecation") 382 public TextView(Context context, 383 AttributeSet attrs, 384 int defStyle) { 385 super(context, attrs, defStyle); 386 mText = ""; 387 388 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 389 mTextPaint.density = getResources().getDisplayMetrics().density; 390 mTextPaint.setCompatibilityScaling( 391 getResources().getCompatibilityInfo().applicationScale); 392 393 // If we get the paint from the skin, we should set it to left, since 394 // the layout always wants it to be left. 395 // mTextPaint.setTextAlign(Paint.Align.LEFT); 396 397 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 398 mHighlightPaint.setCompatibilityScaling( 399 getResources().getCompatibilityInfo().applicationScale); 400 401 mMovement = getDefaultMovementMethod(); 402 mTransformation = null; 403 404 TypedArray a = 405 context.obtainStyledAttributes( 406 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 407 408 int textColorHighlight = 0; 409 ColorStateList textColor = null; 410 ColorStateList textColorHint = null; 411 ColorStateList textColorLink = null; 412 int textSize = 15; 413 int typefaceIndex = -1; 414 int styleIndex = -1; 415 416 /* 417 * Look the appearance up without checking first if it exists because 418 * almost every TextView has one and it greatly simplifies the logic 419 * to be able to parse the appearance first and then let specific tags 420 * for this View override it. 421 */ 422 TypedArray appearance = null; 423 int ap = a.getResourceId(com.android.internal.R.styleable.TextView_textAppearance, -1); 424 if (ap != -1) { 425 appearance = context.obtainStyledAttributes(ap, 426 com.android.internal.R.styleable. 427 TextAppearance); 428 } 429 if (appearance != null) { 430 int n = appearance.getIndexCount(); 431 for (int i = 0; i < n; i++) { 432 int attr = appearance.getIndex(i); 433 434 switch (attr) { 435 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 436 textColorHighlight = appearance.getColor(attr, textColorHighlight); 437 break; 438 439 case com.android.internal.R.styleable.TextAppearance_textColor: 440 textColor = appearance.getColorStateList(attr); 441 break; 442 443 case com.android.internal.R.styleable.TextAppearance_textColorHint: 444 textColorHint = appearance.getColorStateList(attr); 445 break; 446 447 case com.android.internal.R.styleable.TextAppearance_textColorLink: 448 textColorLink = appearance.getColorStateList(attr); 449 break; 450 451 case com.android.internal.R.styleable.TextAppearance_textSize: 452 textSize = appearance.getDimensionPixelSize(attr, textSize); 453 break; 454 455 case com.android.internal.R.styleable.TextAppearance_typeface: 456 typefaceIndex = appearance.getInt(attr, -1); 457 break; 458 459 case com.android.internal.R.styleable.TextAppearance_textStyle: 460 styleIndex = appearance.getInt(attr, -1); 461 break; 462 } 463 } 464 465 appearance.recycle(); 466 } 467 468 boolean editable = getDefaultEditable(); 469 CharSequence inputMethod = null; 470 int numeric = 0; 471 CharSequence digits = null; 472 boolean phone = false; 473 boolean autotext = false; 474 int autocap = -1; 475 int buffertype = 0; 476 boolean selectallonfocus = false; 477 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 478 drawableBottom = null; 479 int drawablePadding = 0; 480 int ellipsize = -1; 481 boolean singleLine = false; 482 int maxlength = -1; 483 CharSequence text = ""; 484 CharSequence hint = null; 485 int shadowcolor = 0; 486 float dx = 0, dy = 0, r = 0; 487 boolean password = false; 488 int inputType = EditorInfo.TYPE_NULL; 489 490 int n = a.getIndexCount(); 491 for (int i = 0; i < n; i++) { 492 int attr = a.getIndex(i); 493 494 switch (attr) { 495 case com.android.internal.R.styleable.TextView_editable: 496 editable = a.getBoolean(attr, editable); 497 break; 498 499 case com.android.internal.R.styleable.TextView_inputMethod: 500 inputMethod = a.getText(attr); 501 break; 502 503 case com.android.internal.R.styleable.TextView_numeric: 504 numeric = a.getInt(attr, numeric); 505 break; 506 507 case com.android.internal.R.styleable.TextView_digits: 508 digits = a.getText(attr); 509 break; 510 511 case com.android.internal.R.styleable.TextView_phoneNumber: 512 phone = a.getBoolean(attr, phone); 513 break; 514 515 case com.android.internal.R.styleable.TextView_autoText: 516 autotext = a.getBoolean(attr, autotext); 517 break; 518 519 case com.android.internal.R.styleable.TextView_capitalize: 520 autocap = a.getInt(attr, autocap); 521 break; 522 523 case com.android.internal.R.styleable.TextView_bufferType: 524 buffertype = a.getInt(attr, buffertype); 525 break; 526 527 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 528 selectallonfocus = a.getBoolean(attr, selectallonfocus); 529 break; 530 531 case com.android.internal.R.styleable.TextView_autoLink: 532 mAutoLinkMask = a.getInt(attr, 0); 533 break; 534 535 case com.android.internal.R.styleable.TextView_linksClickable: 536 mLinksClickable = a.getBoolean(attr, true); 537 break; 538 539 case com.android.internal.R.styleable.TextView_drawableLeft: 540 drawableLeft = a.getDrawable(attr); 541 break; 542 543 case com.android.internal.R.styleable.TextView_drawableTop: 544 drawableTop = a.getDrawable(attr); 545 break; 546 547 case com.android.internal.R.styleable.TextView_drawableRight: 548 drawableRight = a.getDrawable(attr); 549 break; 550 551 case com.android.internal.R.styleable.TextView_drawableBottom: 552 drawableBottom = a.getDrawable(attr); 553 break; 554 555 case com.android.internal.R.styleable.TextView_drawablePadding: 556 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 557 break; 558 559 case com.android.internal.R.styleable.TextView_maxLines: 560 setMaxLines(a.getInt(attr, -1)); 561 break; 562 563 case com.android.internal.R.styleable.TextView_maxHeight: 564 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 565 break; 566 567 case com.android.internal.R.styleable.TextView_lines: 568 setLines(a.getInt(attr, -1)); 569 break; 570 571 case com.android.internal.R.styleable.TextView_height: 572 setHeight(a.getDimensionPixelSize(attr, -1)); 573 break; 574 575 case com.android.internal.R.styleable.TextView_minLines: 576 setMinLines(a.getInt(attr, -1)); 577 break; 578 579 case com.android.internal.R.styleable.TextView_minHeight: 580 setMinHeight(a.getDimensionPixelSize(attr, -1)); 581 break; 582 583 case com.android.internal.R.styleable.TextView_maxEms: 584 setMaxEms(a.getInt(attr, -1)); 585 break; 586 587 case com.android.internal.R.styleable.TextView_maxWidth: 588 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 589 break; 590 591 case com.android.internal.R.styleable.TextView_ems: 592 setEms(a.getInt(attr, -1)); 593 break; 594 595 case com.android.internal.R.styleable.TextView_width: 596 setWidth(a.getDimensionPixelSize(attr, -1)); 597 break; 598 599 case com.android.internal.R.styleable.TextView_minEms: 600 setMinEms(a.getInt(attr, -1)); 601 break; 602 603 case com.android.internal.R.styleable.TextView_minWidth: 604 setMinWidth(a.getDimensionPixelSize(attr, -1)); 605 break; 606 607 case com.android.internal.R.styleable.TextView_gravity: 608 setGravity(a.getInt(attr, -1)); 609 break; 610 611 case com.android.internal.R.styleable.TextView_hint: 612 hint = a.getText(attr); 613 break; 614 615 case com.android.internal.R.styleable.TextView_text: 616 text = a.getText(attr); 617 break; 618 619 case com.android.internal.R.styleable.TextView_scrollHorizontally: 620 if (a.getBoolean(attr, false)) { 621 setHorizontallyScrolling(true); 622 } 623 break; 624 625 case com.android.internal.R.styleable.TextView_singleLine: 626 singleLine = a.getBoolean(attr, singleLine); 627 break; 628 629 case com.android.internal.R.styleable.TextView_ellipsize: 630 ellipsize = a.getInt(attr, ellipsize); 631 break; 632 633 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 634 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 635 break; 636 637 case com.android.internal.R.styleable.TextView_includeFontPadding: 638 if (!a.getBoolean(attr, true)) { 639 setIncludeFontPadding(false); 640 } 641 break; 642 643 case com.android.internal.R.styleable.TextView_cursorVisible: 644 if (!a.getBoolean(attr, true)) { 645 setCursorVisible(false); 646 } 647 break; 648 649 case com.android.internal.R.styleable.TextView_maxLength: 650 maxlength = a.getInt(attr, -1); 651 break; 652 653 case com.android.internal.R.styleable.TextView_textScaleX: 654 setTextScaleX(a.getFloat(attr, 1.0f)); 655 break; 656 657 case com.android.internal.R.styleable.TextView_freezesText: 658 mFreezesText = a.getBoolean(attr, false); 659 break; 660 661 case com.android.internal.R.styleable.TextView_shadowColor: 662 shadowcolor = a.getInt(attr, 0); 663 break; 664 665 case com.android.internal.R.styleable.TextView_shadowDx: 666 dx = a.getFloat(attr, 0); 667 break; 668 669 case com.android.internal.R.styleable.TextView_shadowDy: 670 dy = a.getFloat(attr, 0); 671 break; 672 673 case com.android.internal.R.styleable.TextView_shadowRadius: 674 r = a.getFloat(attr, 0); 675 break; 676 677 case com.android.internal.R.styleable.TextView_enabled: 678 setEnabled(a.getBoolean(attr, isEnabled())); 679 break; 680 681 case com.android.internal.R.styleable.TextView_textColorHighlight: 682 textColorHighlight = a.getColor(attr, textColorHighlight); 683 break; 684 685 case com.android.internal.R.styleable.TextView_textColor: 686 textColor = a.getColorStateList(attr); 687 break; 688 689 case com.android.internal.R.styleable.TextView_textColorHint: 690 textColorHint = a.getColorStateList(attr); 691 break; 692 693 case com.android.internal.R.styleable.TextView_textColorLink: 694 textColorLink = a.getColorStateList(attr); 695 break; 696 697 case com.android.internal.R.styleable.TextView_textSize: 698 textSize = a.getDimensionPixelSize(attr, textSize); 699 break; 700 701 case com.android.internal.R.styleable.TextView_typeface: 702 typefaceIndex = a.getInt(attr, typefaceIndex); 703 break; 704 705 case com.android.internal.R.styleable.TextView_textStyle: 706 styleIndex = a.getInt(attr, styleIndex); 707 break; 708 709 case com.android.internal.R.styleable.TextView_password: 710 password = a.getBoolean(attr, password); 711 break; 712 713 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 714 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 715 break; 716 717 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 718 mSpacingMult = a.getFloat(attr, mSpacingMult); 719 break; 720 721 case com.android.internal.R.styleable.TextView_inputType: 722 inputType = a.getInt(attr, mInputType); 723 break; 724 725 case com.android.internal.R.styleable.TextView_imeOptions: 726 if (mInputContentType == null) { 727 mInputContentType = new InputContentType(); 728 } 729 mInputContentType.imeOptions = a.getInt(attr, 730 mInputContentType.imeOptions); 731 break; 732 733 case com.android.internal.R.styleable.TextView_imeActionLabel: 734 if (mInputContentType == null) { 735 mInputContentType = new InputContentType(); 736 } 737 mInputContentType.imeActionLabel = a.getText(attr); 738 break; 739 740 case com.android.internal.R.styleable.TextView_imeActionId: 741 if (mInputContentType == null) { 742 mInputContentType = new InputContentType(); 743 } 744 mInputContentType.imeActionId = a.getInt(attr, 745 mInputContentType.imeActionId); 746 break; 747 748 case com.android.internal.R.styleable.TextView_privateImeOptions: 749 setPrivateImeOptions(a.getString(attr)); 750 break; 751 752 case com.android.internal.R.styleable.TextView_editorExtras: 753 try { 754 setInputExtras(a.getResourceId(attr, 0)); 755 } catch (XmlPullParserException e) { 756 Log.w(LOG_TAG, "Failure reading input extras", e); 757 } catch (IOException e) { 758 Log.w(LOG_TAG, "Failure reading input extras", e); 759 } 760 break; 761 762 case com.android.internal.R.styleable.TextView_textCursorDrawable: 763 mCursorDrawableRes = a.getResourceId(attr, 0); 764 break; 765 766 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 767 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 768 break; 769 770 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 771 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 772 break; 773 774 case com.android.internal.R.styleable.TextView_textSelectHandle: 775 mTextSelectHandleRes = a.getResourceId(attr, 0); 776 break; 777 778 case com.android.internal.R.styleable.TextView_textEditPasteWindowLayout: 779 mTextEditPasteWindowLayout = a.getResourceId(attr, 0); 780 break; 781 782 case com.android.internal.R.styleable.TextView_textEditNoPasteWindowLayout: 783 mTextEditNoPasteWindowLayout = a.getResourceId(attr, 0); 784 break; 785 786 case com.android.internal.R.styleable.TextView_textEditSidePasteWindowLayout: 787 mTextEditSidePasteWindowLayout = a.getResourceId(attr, 0); 788 break; 789 790 case com.android.internal.R.styleable.TextView_textEditSideNoPasteWindowLayout: 791 mTextEditSideNoPasteWindowLayout = a.getResourceId(attr, 0); 792 break; 793 794 case com.android.internal.R.styleable.TextView_textEditSuggestionsBottomWindowLayout: 795 mTextEditSuggestionsBottomWindowLayout = a.getResourceId(attr, 0); 796 break; 797 798 case com.android.internal.R.styleable.TextView_textEditSuggestionsTopWindowLayout: 799 mTextEditSuggestionsTopWindowLayout = a.getResourceId(attr, 0); 800 break; 801 802 case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout: 803 mTextEditSuggestionItemLayout = a.getResourceId(attr, 0); 804 break; 805 806 case com.android.internal.R.styleable.TextView_textIsSelectable: 807 mTextIsSelectable = a.getBoolean(attr, false); 808 break; 809 } 810 } 811 a.recycle(); 812 813 BufferType bufferType = BufferType.EDITABLE; 814 815 final int variation = 816 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 817 final boolean passwordInputType = variation 818 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 819 final boolean webPasswordInputType = variation 820 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 821 final boolean numberPasswordInputType = variation 822 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 823 824 if (inputMethod != null) { 825 Class<?> c; 826 827 try { 828 c = Class.forName(inputMethod.toString()); 829 } catch (ClassNotFoundException ex) { 830 throw new RuntimeException(ex); 831 } 832 833 try { 834 mInput = (KeyListener) c.newInstance(); 835 } catch (InstantiationException ex) { 836 throw new RuntimeException(ex); 837 } catch (IllegalAccessException ex) { 838 throw new RuntimeException(ex); 839 } 840 try { 841 mInputType = inputType != EditorInfo.TYPE_NULL 842 ? inputType 843 : mInput.getInputType(); 844 } catch (IncompatibleClassChangeError e) { 845 mInputType = EditorInfo.TYPE_CLASS_TEXT; 846 } 847 } else if (digits != null) { 848 mInput = DigitsKeyListener.getInstance(digits.toString()); 849 // If no input type was specified, we will default to generic 850 // text, since we can't tell the IME about the set of digits 851 // that was selected. 852 mInputType = inputType != EditorInfo.TYPE_NULL 853 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 854 } else if (inputType != EditorInfo.TYPE_NULL) { 855 setInputType(inputType, true); 856 // If set, the input type overrides what was set using the deprecated singleLine flag. 857 singleLine = !isMultilineInputType(inputType); 858 } else if (phone) { 859 mInput = DialerKeyListener.getInstance(); 860 mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 861 } else if (numeric != 0) { 862 mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 863 (numeric & DECIMAL) != 0); 864 inputType = EditorInfo.TYPE_CLASS_NUMBER; 865 if ((numeric & SIGNED) != 0) { 866 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 867 } 868 if ((numeric & DECIMAL) != 0) { 869 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 870 } 871 mInputType = inputType; 872 } else if (autotext || autocap != -1) { 873 TextKeyListener.Capitalize cap; 874 875 inputType = EditorInfo.TYPE_CLASS_TEXT; 876 877 switch (autocap) { 878 case 1: 879 cap = TextKeyListener.Capitalize.SENTENCES; 880 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 881 break; 882 883 case 2: 884 cap = TextKeyListener.Capitalize.WORDS; 885 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 886 break; 887 888 case 3: 889 cap = TextKeyListener.Capitalize.CHARACTERS; 890 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 891 break; 892 893 default: 894 cap = TextKeyListener.Capitalize.NONE; 895 break; 896 } 897 898 mInput = TextKeyListener.getInstance(autotext, cap); 899 mInputType = inputType; 900 } else if (mTextIsSelectable) { 901 // Prevent text changes from keyboard. 902 mInputType = EditorInfo.TYPE_NULL; 903 mInput = null; 904 bufferType = BufferType.SPANNABLE; 905 // Required to request focus while in touch mode. 906 setFocusableInTouchMode(true); 907 // So that selection can be changed using arrow keys and touch is handled. 908 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 909 } else if (editable) { 910 mInput = TextKeyListener.getInstance(); 911 mInputType = EditorInfo.TYPE_CLASS_TEXT; 912 } else { 913 mInput = null; 914 915 switch (buffertype) { 916 case 0: 917 bufferType = BufferType.NORMAL; 918 break; 919 case 1: 920 bufferType = BufferType.SPANNABLE; 921 break; 922 case 2: 923 bufferType = BufferType.EDITABLE; 924 break; 925 } 926 } 927 928 // mInputType has been set from inputType, possibly modified by mInputMethod. 929 // Specialize mInputType to [web]password if we have a text class and the original input 930 // type was a password. 931 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 932 if (password || passwordInputType) { 933 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 934 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 935 } 936 if (webPasswordInputType) { 937 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 938 | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 939 } 940 } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { 941 if (numberPasswordInputType) { 942 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 943 | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 944 } 945 } 946 947 if (selectallonfocus) { 948 mSelectAllOnFocus = true; 949 950 if (bufferType == BufferType.NORMAL) 951 bufferType = BufferType.SPANNABLE; 952 } 953 954 setCompoundDrawablesWithIntrinsicBounds( 955 drawableLeft, drawableTop, drawableRight, drawableBottom); 956 setCompoundDrawablePadding(drawablePadding); 957 958 // Same as setSingleLine(), but make sure the transformation method and the maximum number 959 // of lines of height are unchanged for multi-line TextViews. 960 setInputTypeSingleLine(singleLine); 961 applySingleLine(singleLine, singleLine, singleLine); 962 963 if (singleLine && mInput == null && ellipsize < 0) { 964 ellipsize = 3; // END 965 } 966 967 switch (ellipsize) { 968 case 1: 969 setEllipsize(TextUtils.TruncateAt.START); 970 break; 971 case 2: 972 setEllipsize(TextUtils.TruncateAt.MIDDLE); 973 break; 974 case 3: 975 setEllipsize(TextUtils.TruncateAt.END); 976 break; 977 case 4: 978 setHorizontalFadingEdgeEnabled(true); 979 setEllipsize(TextUtils.TruncateAt.MARQUEE); 980 break; 981 } 982 983 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 984 setHintTextColor(textColorHint); 985 setLinkTextColor(textColorLink); 986 if (textColorHighlight != 0) { 987 setHighlightColor(textColorHighlight); 988 } 989 setRawTextSize(textSize); 990 991 if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) { 992 setTransformationMethod(PasswordTransformationMethod.getInstance()); 993 typefaceIndex = MONOSPACE; 994 } else if ((mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 995 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 996 typefaceIndex = MONOSPACE; 997 } 998 999 setTypefaceByIndex(typefaceIndex, styleIndex); 1000 1001 if (shadowcolor != 0) { 1002 setShadowLayer(r, dx, dy, shadowcolor); 1003 } 1004 1005 if (maxlength >= 0) { 1006 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 1007 } else { 1008 setFilters(NO_FILTERS); 1009 } 1010 1011 setText(text, bufferType); 1012 if (hint != null) setHint(hint); 1013 1014 /* 1015 * Views are not normally focusable unless specified to be. 1016 * However, TextViews that have input or movement methods *are* 1017 * focusable by default. 1018 */ 1019 a = context.obtainStyledAttributes(attrs, 1020 com.android.internal.R.styleable.View, 1021 defStyle, 0); 1022 1023 boolean focusable = mMovement != null || mInput != null; 1024 boolean clickable = focusable; 1025 boolean longClickable = focusable; 1026 1027 n = a.getIndexCount(); 1028 for (int i = 0; i < n; i++) { 1029 int attr = a.getIndex(i); 1030 1031 switch (attr) { 1032 case com.android.internal.R.styleable.View_focusable: 1033 focusable = a.getBoolean(attr, focusable); 1034 break; 1035 1036 case com.android.internal.R.styleable.View_clickable: 1037 clickable = a.getBoolean(attr, clickable); 1038 break; 1039 1040 case com.android.internal.R.styleable.View_longClickable: 1041 longClickable = a.getBoolean(attr, longClickable); 1042 break; 1043 } 1044 } 1045 a.recycle(); 1046 1047 setFocusable(focusable); 1048 setClickable(clickable); 1049 setLongClickable(longClickable); 1050 1051 prepareCursorControllers(); 1052 1053 final ViewConfiguration viewConfiguration = ViewConfiguration.get(context); 1054 final int touchSlop = viewConfiguration.getScaledTouchSlop(); 1055 mSquaredTouchSlopDistance = touchSlop * touchSlop; 1056 } 1057 1058 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 1059 Typeface tf = null; 1060 switch (typefaceIndex) { 1061 case SANS: 1062 tf = Typeface.SANS_SERIF; 1063 break; 1064 1065 case SERIF: 1066 tf = Typeface.SERIF; 1067 break; 1068 1069 case MONOSPACE: 1070 tf = Typeface.MONOSPACE; 1071 break; 1072 } 1073 1074 setTypeface(tf, styleIndex); 1075 } 1076 1077 @Override 1078 public void setEnabled(boolean enabled) { 1079 if (enabled == isEnabled()) { 1080 return; 1081 } 1082 1083 if (!enabled) { 1084 // Hide the soft input if the currently active TextView is disabled 1085 InputMethodManager imm = InputMethodManager.peekInstance(); 1086 if (imm != null && imm.isActive(this)) { 1087 imm.hideSoftInputFromWindow(getWindowToken(), 0); 1088 } 1089 } 1090 super.setEnabled(enabled); 1091 } 1092 1093 /** 1094 * Sets the typeface and style in which the text should be displayed, 1095 * and turns on the fake bold and italic bits in the Paint if the 1096 * Typeface that you provided does not have all the bits in the 1097 * style that you specified. 1098 * 1099 * @attr ref android.R.styleable#TextView_typeface 1100 * @attr ref android.R.styleable#TextView_textStyle 1101 */ 1102 public void setTypeface(Typeface tf, int style) { 1103 if (style > 0) { 1104 if (tf == null) { 1105 tf = Typeface.defaultFromStyle(style); 1106 } else { 1107 tf = Typeface.create(tf, style); 1108 } 1109 1110 setTypeface(tf); 1111 // now compute what (if any) algorithmic styling is needed 1112 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1113 int need = style & ~typefaceStyle; 1114 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1115 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1116 } else { 1117 mTextPaint.setFakeBoldText(false); 1118 mTextPaint.setTextSkewX(0); 1119 setTypeface(tf); 1120 } 1121 } 1122 1123 /** 1124 * Subclasses override this to specify that they have a KeyListener 1125 * by default even if not specifically called for in the XML options. 1126 */ 1127 protected boolean getDefaultEditable() { 1128 return false; 1129 } 1130 1131 /** 1132 * Subclasses override this to specify a default movement method. 1133 */ 1134 protected MovementMethod getDefaultMovementMethod() { 1135 return null; 1136 } 1137 1138 /** 1139 * Return the text the TextView is displaying. If setText() was called with 1140 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1141 * the return value from this method to Spannable or Editable, respectively. 1142 * 1143 * Note: The content of the return value should not be modified. If you want 1144 * a modifiable one, you should make your own copy first. 1145 */ 1146 @ViewDebug.CapturedViewProperty 1147 public CharSequence getText() { 1148 return mText; 1149 } 1150 1151 /** 1152 * Returns the length, in characters, of the text managed by this TextView 1153 */ 1154 public int length() { 1155 return mText.length(); 1156 } 1157 1158 /** 1159 * Return the text the TextView is displaying as an Editable object. If 1160 * the text is not editable, null is returned. 1161 * 1162 * @see #getText 1163 */ 1164 public Editable getEditableText() { 1165 return (mText instanceof Editable) ? (Editable)mText : null; 1166 } 1167 1168 /** 1169 * @return the height of one standard line in pixels. Note that markup 1170 * within the text can cause individual lines to be taller or shorter 1171 * than this height, and the layout may contain additional first- 1172 * or last-line padding. 1173 */ 1174 public int getLineHeight() { 1175 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 1176 } 1177 1178 /** 1179 * @return the Layout that is currently being used to display the text. 1180 * This can be null if the text or width has recently changes. 1181 */ 1182 public final Layout getLayout() { 1183 return mLayout; 1184 } 1185 1186 /** 1187 * @return the current key listener for this TextView. 1188 * This will frequently be null for non-EditText TextViews. 1189 */ 1190 public final KeyListener getKeyListener() { 1191 return mInput; 1192 } 1193 1194 /** 1195 * Sets the key listener to be used with this TextView. This can be null 1196 * to disallow user input. Note that this method has significant and 1197 * subtle interactions with soft keyboards and other input method: 1198 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1199 * for important details. Calling this method will replace the current 1200 * content type of the text view with the content type returned by the 1201 * key listener. 1202 * <p> 1203 * Be warned that if you want a TextView with a key listener or movement 1204 * method not to be focusable, or if you want a TextView without a 1205 * key listener or movement method to be focusable, you must call 1206 * {@link #setFocusable} again after calling this to get the focusability 1207 * back the way you want it. 1208 * 1209 * @attr ref android.R.styleable#TextView_numeric 1210 * @attr ref android.R.styleable#TextView_digits 1211 * @attr ref android.R.styleable#TextView_phoneNumber 1212 * @attr ref android.R.styleable#TextView_inputMethod 1213 * @attr ref android.R.styleable#TextView_capitalize 1214 * @attr ref android.R.styleable#TextView_autoText 1215 */ 1216 public void setKeyListener(KeyListener input) { 1217 setKeyListenerOnly(input); 1218 fixFocusableAndClickableSettings(); 1219 1220 if (input != null) { 1221 try { 1222 mInputType = mInput.getInputType(); 1223 } catch (IncompatibleClassChangeError e) { 1224 mInputType = EditorInfo.TYPE_CLASS_TEXT; 1225 } 1226 // Change inputType, without affecting transformation. 1227 // No need to applySingleLine since mSingleLine is unchanged. 1228 setInputTypeSingleLine(mSingleLine); 1229 } else { 1230 mInputType = EditorInfo.TYPE_NULL; 1231 } 1232 1233 InputMethodManager imm = InputMethodManager.peekInstance(); 1234 if (imm != null) imm.restartInput(this); 1235 } 1236 1237 private void setKeyListenerOnly(KeyListener input) { 1238 mInput = input; 1239 if (mInput != null && !(mText instanceof Editable)) 1240 setText(mText); 1241 1242 setFilters((Editable) mText, mFilters); 1243 } 1244 1245 /** 1246 * @return the movement method being used for this TextView. 1247 * This will frequently be null for non-EditText TextViews. 1248 */ 1249 public final MovementMethod getMovementMethod() { 1250 return mMovement; 1251 } 1252 1253 /** 1254 * Sets the movement method (arrow key handler) to be used for 1255 * this TextView. This can be null to disallow using the arrow keys 1256 * to move the cursor or scroll the view. 1257 * <p> 1258 * Be warned that if you want a TextView with a key listener or movement 1259 * method not to be focusable, or if you want a TextView without a 1260 * key listener or movement method to be focusable, you must call 1261 * {@link #setFocusable} again after calling this to get the focusability 1262 * back the way you want it. 1263 */ 1264 public final void setMovementMethod(MovementMethod movement) { 1265 mMovement = movement; 1266 1267 if (mMovement != null && !(mText instanceof Spannable)) 1268 setText(mText); 1269 1270 fixFocusableAndClickableSettings(); 1271 1272 // SelectionModifierCursorController depends on textCanBeSelected, which depends on mMovement 1273 prepareCursorControllers(); 1274 } 1275 1276 private void fixFocusableAndClickableSettings() { 1277 if ((mMovement != null) || mInput != null) { 1278 setFocusable(true); 1279 setClickable(true); 1280 setLongClickable(true); 1281 } else { 1282 setFocusable(false); 1283 setClickable(false); 1284 setLongClickable(false); 1285 } 1286 } 1287 1288 /** 1289 * @return the current transformation method for this TextView. 1290 * This will frequently be null except for single-line and password 1291 * fields. 1292 */ 1293 public final TransformationMethod getTransformationMethod() { 1294 return mTransformation; 1295 } 1296 1297 /** 1298 * Sets the transformation that is applied to the text that this 1299 * TextView is displaying. 1300 * 1301 * @attr ref android.R.styleable#TextView_password 1302 * @attr ref android.R.styleable#TextView_singleLine 1303 */ 1304 public final void setTransformationMethod(TransformationMethod method) { 1305 if (method == mTransformation) { 1306 // Avoid the setText() below if the transformation is 1307 // the same. 1308 return; 1309 } 1310 if (mTransformation != null) { 1311 if (mText instanceof Spannable) { 1312 ((Spannable) mText).removeSpan(mTransformation); 1313 } 1314 } 1315 1316 mTransformation = method; 1317 1318 setText(mText); 1319 } 1320 1321 /** 1322 * Returns the top padding of the view, plus space for the top 1323 * Drawable if any. 1324 */ 1325 public int getCompoundPaddingTop() { 1326 final Drawables dr = mDrawables; 1327 if (dr == null || dr.mDrawableTop == null) { 1328 return mPaddingTop; 1329 } else { 1330 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1331 } 1332 } 1333 1334 /** 1335 * Returns the bottom padding of the view, plus space for the bottom 1336 * Drawable if any. 1337 */ 1338 public int getCompoundPaddingBottom() { 1339 final Drawables dr = mDrawables; 1340 if (dr == null || dr.mDrawableBottom == null) { 1341 return mPaddingBottom; 1342 } else { 1343 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1344 } 1345 } 1346 1347 /** 1348 * Returns the left padding of the view, plus space for the left 1349 * Drawable if any. 1350 */ 1351 public int getCompoundPaddingLeft() { 1352 final Drawables dr = mDrawables; 1353 if (dr == null || dr.mDrawableLeft == null) { 1354 return mPaddingLeft; 1355 } else { 1356 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1357 } 1358 } 1359 1360 /** 1361 * Returns the right padding of the view, plus space for the right 1362 * Drawable if any. 1363 */ 1364 public int getCompoundPaddingRight() { 1365 final Drawables dr = mDrawables; 1366 if (dr == null || dr.mDrawableRight == null) { 1367 return mPaddingRight; 1368 } else { 1369 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1370 } 1371 } 1372 1373 /** 1374 * Returns the extended top padding of the view, including both the 1375 * top Drawable if any and any extra space to keep more than maxLines 1376 * of text from showing. It is only valid to call this after measuring. 1377 */ 1378 public int getExtendedPaddingTop() { 1379 if (mMaxMode != LINES) { 1380 return getCompoundPaddingTop(); 1381 } 1382 1383 if (mLayout.getLineCount() <= mMaximum) { 1384 return getCompoundPaddingTop(); 1385 } 1386 1387 int top = getCompoundPaddingTop(); 1388 int bottom = getCompoundPaddingBottom(); 1389 int viewht = getHeight() - top - bottom; 1390 int layoutht = mLayout.getLineTop(mMaximum); 1391 1392 if (layoutht >= viewht) { 1393 return top; 1394 } 1395 1396 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1397 if (gravity == Gravity.TOP) { 1398 return top; 1399 } else if (gravity == Gravity.BOTTOM) { 1400 return top + viewht - layoutht; 1401 } else { // (gravity == Gravity.CENTER_VERTICAL) 1402 return top + (viewht - layoutht) / 2; 1403 } 1404 } 1405 1406 /** 1407 * Returns the extended bottom padding of the view, including both the 1408 * bottom Drawable if any and any extra space to keep more than maxLines 1409 * of text from showing. It is only valid to call this after measuring. 1410 */ 1411 public int getExtendedPaddingBottom() { 1412 if (mMaxMode != LINES) { 1413 return getCompoundPaddingBottom(); 1414 } 1415 1416 if (mLayout.getLineCount() <= mMaximum) { 1417 return getCompoundPaddingBottom(); 1418 } 1419 1420 int top = getCompoundPaddingTop(); 1421 int bottom = getCompoundPaddingBottom(); 1422 int viewht = getHeight() - top - bottom; 1423 int layoutht = mLayout.getLineTop(mMaximum); 1424 1425 if (layoutht >= viewht) { 1426 return bottom; 1427 } 1428 1429 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1430 if (gravity == Gravity.TOP) { 1431 return bottom + viewht - layoutht; 1432 } else if (gravity == Gravity.BOTTOM) { 1433 return bottom; 1434 } else { // (gravity == Gravity.CENTER_VERTICAL) 1435 return bottom + (viewht - layoutht) / 2; 1436 } 1437 } 1438 1439 /** 1440 * Returns the total left padding of the view, including the left 1441 * Drawable if any. 1442 */ 1443 public int getTotalPaddingLeft() { 1444 return getCompoundPaddingLeft(); 1445 } 1446 1447 /** 1448 * Returns the total right padding of the view, including the right 1449 * Drawable if any. 1450 */ 1451 public int getTotalPaddingRight() { 1452 return getCompoundPaddingRight(); 1453 } 1454 1455 /** 1456 * Returns the total top padding of the view, including the top 1457 * Drawable if any, the extra space to keep more than maxLines 1458 * from showing, and the vertical offset for gravity, if any. 1459 */ 1460 public int getTotalPaddingTop() { 1461 return getExtendedPaddingTop() + getVerticalOffset(true); 1462 } 1463 1464 /** 1465 * Returns the total bottom padding of the view, including the bottom 1466 * Drawable if any, the extra space to keep more than maxLines 1467 * from showing, and the vertical offset for gravity, if any. 1468 */ 1469 public int getTotalPaddingBottom() { 1470 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1471 } 1472 1473 /** 1474 * Sets the Drawables (if any) to appear to the left of, above, 1475 * to the right of, and below the text. Use null if you do not 1476 * want a Drawable there. The Drawables must already have had 1477 * {@link Drawable#setBounds} called. 1478 * 1479 * @attr ref android.R.styleable#TextView_drawableLeft 1480 * @attr ref android.R.styleable#TextView_drawableTop 1481 * @attr ref android.R.styleable#TextView_drawableRight 1482 * @attr ref android.R.styleable#TextView_drawableBottom 1483 */ 1484 public void setCompoundDrawables(Drawable left, Drawable top, 1485 Drawable right, Drawable bottom) { 1486 Drawables dr = mDrawables; 1487 1488 final boolean drawables = left != null || top != null 1489 || right != null || bottom != null; 1490 1491 if (!drawables) { 1492 // Clearing drawables... can we free the data structure? 1493 if (dr != null) { 1494 if (dr.mDrawablePadding == 0) { 1495 mDrawables = null; 1496 } else { 1497 // We need to retain the last set padding, so just clear 1498 // out all of the fields in the existing structure. 1499 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1500 dr.mDrawableLeft = null; 1501 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1502 dr.mDrawableTop = null; 1503 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1504 dr.mDrawableRight = null; 1505 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1506 dr.mDrawableBottom = null; 1507 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1508 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1509 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1510 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1511 } 1512 } 1513 } else { 1514 if (dr == null) { 1515 mDrawables = dr = new Drawables(); 1516 } 1517 1518 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1519 dr.mDrawableLeft.setCallback(null); 1520 } 1521 dr.mDrawableLeft = left; 1522 1523 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1524 dr.mDrawableTop.setCallback(null); 1525 } 1526 dr.mDrawableTop = top; 1527 1528 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1529 dr.mDrawableRight.setCallback(null); 1530 } 1531 dr.mDrawableRight = right; 1532 1533 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1534 dr.mDrawableBottom.setCallback(null); 1535 } 1536 dr.mDrawableBottom = bottom; 1537 1538 final Rect compoundRect = dr.mCompoundRect; 1539 int[] state; 1540 1541 state = getDrawableState(); 1542 1543 if (left != null) { 1544 left.setState(state); 1545 left.copyBounds(compoundRect); 1546 left.setCallback(this); 1547 dr.mDrawableSizeLeft = compoundRect.width(); 1548 dr.mDrawableHeightLeft = compoundRect.height(); 1549 } else { 1550 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1551 } 1552 1553 if (right != null) { 1554 right.setState(state); 1555 right.copyBounds(compoundRect); 1556 right.setCallback(this); 1557 dr.mDrawableSizeRight = compoundRect.width(); 1558 dr.mDrawableHeightRight = compoundRect.height(); 1559 } else { 1560 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1561 } 1562 1563 if (top != null) { 1564 top.setState(state); 1565 top.copyBounds(compoundRect); 1566 top.setCallback(this); 1567 dr.mDrawableSizeTop = compoundRect.height(); 1568 dr.mDrawableWidthTop = compoundRect.width(); 1569 } else { 1570 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1571 } 1572 1573 if (bottom != null) { 1574 bottom.setState(state); 1575 bottom.copyBounds(compoundRect); 1576 bottom.setCallback(this); 1577 dr.mDrawableSizeBottom = compoundRect.height(); 1578 dr.mDrawableWidthBottom = compoundRect.width(); 1579 } else { 1580 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1581 } 1582 } 1583 1584 invalidate(); 1585 requestLayout(); 1586 } 1587 1588 /** 1589 * Sets the Drawables (if any) to appear to the left of, above, 1590 * to the right of, and below the text. Use 0 if you do not 1591 * want a Drawable there. The Drawables' bounds will be set to 1592 * their intrinsic bounds. 1593 * 1594 * @param left Resource identifier of the left Drawable. 1595 * @param top Resource identifier of the top Drawable. 1596 * @param right Resource identifier of the right Drawable. 1597 * @param bottom Resource identifier of the bottom Drawable. 1598 * 1599 * @attr ref android.R.styleable#TextView_drawableLeft 1600 * @attr ref android.R.styleable#TextView_drawableTop 1601 * @attr ref android.R.styleable#TextView_drawableRight 1602 * @attr ref android.R.styleable#TextView_drawableBottom 1603 */ 1604 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1605 final Resources resources = getContext().getResources(); 1606 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1607 top != 0 ? resources.getDrawable(top) : null, 1608 right != 0 ? resources.getDrawable(right) : null, 1609 bottom != 0 ? resources.getDrawable(bottom) : null); 1610 } 1611 1612 /** 1613 * Sets the Drawables (if any) to appear to the left of, above, 1614 * to the right of, and below the text. Use null if you do not 1615 * want a Drawable there. The Drawables' bounds will be set to 1616 * their intrinsic bounds. 1617 * 1618 * @attr ref android.R.styleable#TextView_drawableLeft 1619 * @attr ref android.R.styleable#TextView_drawableTop 1620 * @attr ref android.R.styleable#TextView_drawableRight 1621 * @attr ref android.R.styleable#TextView_drawableBottom 1622 */ 1623 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1624 Drawable right, Drawable bottom) { 1625 1626 if (left != null) { 1627 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1628 } 1629 if (right != null) { 1630 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1631 } 1632 if (top != null) { 1633 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1634 } 1635 if (bottom != null) { 1636 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1637 } 1638 setCompoundDrawables(left, top, right, bottom); 1639 } 1640 1641 /** 1642 * Returns drawables for the left, top, right, and bottom borders. 1643 */ 1644 public Drawable[] getCompoundDrawables() { 1645 final Drawables dr = mDrawables; 1646 if (dr != null) { 1647 return new Drawable[] { 1648 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 1649 }; 1650 } else { 1651 return new Drawable[] { null, null, null, null }; 1652 } 1653 } 1654 1655 /** 1656 * Sets the size of the padding between the compound drawables and 1657 * the text. 1658 * 1659 * @attr ref android.R.styleable#TextView_drawablePadding 1660 */ 1661 public void setCompoundDrawablePadding(int pad) { 1662 Drawables dr = mDrawables; 1663 if (pad == 0) { 1664 if (dr != null) { 1665 dr.mDrawablePadding = pad; 1666 } 1667 } else { 1668 if (dr == null) { 1669 mDrawables = dr = new Drawables(); 1670 } 1671 dr.mDrawablePadding = pad; 1672 } 1673 1674 invalidate(); 1675 requestLayout(); 1676 } 1677 1678 /** 1679 * Returns the padding between the compound drawables and the text. 1680 */ 1681 public int getCompoundDrawablePadding() { 1682 final Drawables dr = mDrawables; 1683 return dr != null ? dr.mDrawablePadding : 0; 1684 } 1685 1686 @Override 1687 public void setPadding(int left, int top, int right, int bottom) { 1688 if (left != mPaddingLeft || 1689 right != mPaddingRight || 1690 top != mPaddingTop || 1691 bottom != mPaddingBottom) { 1692 nullLayouts(); 1693 } 1694 1695 // the super call will requestLayout() 1696 super.setPadding(left, top, right, bottom); 1697 invalidate(); 1698 } 1699 1700 /** 1701 * Gets the autolink mask of the text. See {@link 1702 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1703 * possible values. 1704 * 1705 * @attr ref android.R.styleable#TextView_autoLink 1706 */ 1707 public final int getAutoLinkMask() { 1708 return mAutoLinkMask; 1709 } 1710 1711 /** 1712 * Sets the text color, size, style, hint color, and highlight color 1713 * from the specified TextAppearance resource. 1714 */ 1715 public void setTextAppearance(Context context, int resid) { 1716 TypedArray appearance = 1717 context.obtainStyledAttributes(resid, 1718 com.android.internal.R.styleable.TextAppearance); 1719 1720 int color; 1721 ColorStateList colors; 1722 int ts; 1723 1724 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 1725 if (color != 0) { 1726 setHighlightColor(color); 1727 } 1728 1729 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1730 TextAppearance_textColor); 1731 if (colors != null) { 1732 setTextColor(colors); 1733 } 1734 1735 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 1736 TextAppearance_textSize, 0); 1737 if (ts != 0) { 1738 setRawTextSize(ts); 1739 } 1740 1741 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1742 TextAppearance_textColorHint); 1743 if (colors != null) { 1744 setHintTextColor(colors); 1745 } 1746 1747 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1748 TextAppearance_textColorLink); 1749 if (colors != null) { 1750 setLinkTextColor(colors); 1751 } 1752 1753 int typefaceIndex, styleIndex; 1754 1755 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 1756 TextAppearance_typeface, -1); 1757 styleIndex = appearance.getInt(com.android.internal.R.styleable. 1758 TextAppearance_textStyle, -1); 1759 1760 setTypefaceByIndex(typefaceIndex, styleIndex); 1761 1762 appearance.recycle(); 1763 } 1764 1765 /** 1766 * @return the size (in pixels) of the default text size in this TextView. 1767 */ 1768 public float getTextSize() { 1769 return mTextPaint.getTextSize(); 1770 } 1771 1772 /** 1773 * Set the default text size to the given value, interpreted as "scaled 1774 * pixel" units. This size is adjusted based on the current density and 1775 * user font size preference. 1776 * 1777 * @param size The scaled pixel size. 1778 * 1779 * @attr ref android.R.styleable#TextView_textSize 1780 */ 1781 @android.view.RemotableViewMethod 1782 public void setTextSize(float size) { 1783 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 1784 } 1785 1786 /** 1787 * Set the default text size to a given unit and value. See {@link 1788 * TypedValue} for the possible dimension units. 1789 * 1790 * @param unit The desired dimension unit. 1791 * @param size The desired size in the given units. 1792 * 1793 * @attr ref android.R.styleable#TextView_textSize 1794 */ 1795 public void setTextSize(int unit, float size) { 1796 Context c = getContext(); 1797 Resources r; 1798 1799 if (c == null) 1800 r = Resources.getSystem(); 1801 else 1802 r = c.getResources(); 1803 1804 setRawTextSize(TypedValue.applyDimension( 1805 unit, size, r.getDisplayMetrics())); 1806 } 1807 1808 private void setRawTextSize(float size) { 1809 if (size != mTextPaint.getTextSize()) { 1810 mTextPaint.setTextSize(size); 1811 1812 if (mLayout != null) { 1813 nullLayouts(); 1814 requestLayout(); 1815 invalidate(); 1816 } 1817 } 1818 } 1819 1820 /** 1821 * @return the extent by which text is currently being stretched 1822 * horizontally. This will usually be 1. 1823 */ 1824 public float getTextScaleX() { 1825 return mTextPaint.getTextScaleX(); 1826 } 1827 1828 /** 1829 * Sets the extent by which text should be stretched horizontally. 1830 * 1831 * @attr ref android.R.styleable#TextView_textScaleX 1832 */ 1833 @android.view.RemotableViewMethod 1834 public void setTextScaleX(float size) { 1835 if (size != mTextPaint.getTextScaleX()) { 1836 mUserSetTextScaleX = true; 1837 mTextPaint.setTextScaleX(size); 1838 1839 if (mLayout != null) { 1840 nullLayouts(); 1841 requestLayout(); 1842 invalidate(); 1843 } 1844 } 1845 } 1846 1847 /** 1848 * Sets the typeface and style in which the text should be displayed. 1849 * Note that not all Typeface families actually have bold and italic 1850 * variants, so you may need to use 1851 * {@link #setTypeface(Typeface, int)} to get the appearance 1852 * that you actually want. 1853 * 1854 * @attr ref android.R.styleable#TextView_typeface 1855 * @attr ref android.R.styleable#TextView_textStyle 1856 */ 1857 public void setTypeface(Typeface tf) { 1858 if (mTextPaint.getTypeface() != tf) { 1859 mTextPaint.setTypeface(tf); 1860 1861 if (mLayout != null) { 1862 nullLayouts(); 1863 requestLayout(); 1864 invalidate(); 1865 } 1866 } 1867 } 1868 1869 /** 1870 * @return the current typeface and style in which the text is being 1871 * displayed. 1872 */ 1873 public Typeface getTypeface() { 1874 return mTextPaint.getTypeface(); 1875 } 1876 1877 /** 1878 * Sets the text color for all the states (normal, selected, 1879 * focused) to be this color. 1880 * 1881 * @attr ref android.R.styleable#TextView_textColor 1882 */ 1883 @android.view.RemotableViewMethod 1884 public void setTextColor(int color) { 1885 mTextColor = ColorStateList.valueOf(color); 1886 updateTextColors(); 1887 } 1888 1889 /** 1890 * Sets the text color. 1891 * 1892 * @attr ref android.R.styleable#TextView_textColor 1893 */ 1894 public void setTextColor(ColorStateList colors) { 1895 if (colors == null) { 1896 throw new NullPointerException(); 1897 } 1898 1899 mTextColor = colors; 1900 updateTextColors(); 1901 } 1902 1903 /** 1904 * Return the set of text colors. 1905 * 1906 * @return Returns the set of text colors. 1907 */ 1908 public final ColorStateList getTextColors() { 1909 return mTextColor; 1910 } 1911 1912 /** 1913 * <p>Return the current color selected for normal text.</p> 1914 * 1915 * @return Returns the current text color. 1916 */ 1917 public final int getCurrentTextColor() { 1918 return mCurTextColor; 1919 } 1920 1921 /** 1922 * Sets the color used to display the selection highlight. 1923 * 1924 * @attr ref android.R.styleable#TextView_textColorHighlight 1925 */ 1926 @android.view.RemotableViewMethod 1927 public void setHighlightColor(int color) { 1928 if (mHighlightColor != color) { 1929 mHighlightColor = color; 1930 invalidate(); 1931 } 1932 } 1933 1934 /** 1935 * Gives the text a shadow of the specified radius and color, the specified 1936 * distance from its normal position. 1937 * 1938 * @attr ref android.R.styleable#TextView_shadowColor 1939 * @attr ref android.R.styleable#TextView_shadowDx 1940 * @attr ref android.R.styleable#TextView_shadowDy 1941 * @attr ref android.R.styleable#TextView_shadowRadius 1942 */ 1943 public void setShadowLayer(float radius, float dx, float dy, int color) { 1944 mTextPaint.setShadowLayer(radius, dx, dy, color); 1945 1946 mShadowRadius = radius; 1947 mShadowDx = dx; 1948 mShadowDy = dy; 1949 1950 invalidate(); 1951 } 1952 1953 /** 1954 * @return the base paint used for the text. Please use this only to 1955 * consult the Paint's properties and not to change them. 1956 */ 1957 public TextPaint getPaint() { 1958 return mTextPaint; 1959 } 1960 1961 /** 1962 * Sets the autolink mask of the text. See {@link 1963 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1964 * possible values. 1965 * 1966 * @attr ref android.R.styleable#TextView_autoLink 1967 */ 1968 @android.view.RemotableViewMethod 1969 public final void setAutoLinkMask(int mask) { 1970 mAutoLinkMask = mask; 1971 } 1972 1973 /** 1974 * Sets whether the movement method will automatically be set to 1975 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1976 * set to nonzero and links are detected in {@link #setText}. 1977 * The default is true. 1978 * 1979 * @attr ref android.R.styleable#TextView_linksClickable 1980 */ 1981 @android.view.RemotableViewMethod 1982 public final void setLinksClickable(boolean whether) { 1983 mLinksClickable = whether; 1984 } 1985 1986 /** 1987 * Returns whether the movement method will automatically be set to 1988 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1989 * set to nonzero and links are detected in {@link #setText}. 1990 * The default is true. 1991 * 1992 * @attr ref android.R.styleable#TextView_linksClickable 1993 */ 1994 public final boolean getLinksClickable() { 1995 return mLinksClickable; 1996 } 1997 1998 /** 1999 * Returns the list of URLSpans attached to the text 2000 * (by {@link Linkify} or otherwise) if any. You can call 2001 * {@link URLSpan#getURL} on them to find where they link to 2002 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 2003 * to find the region of the text they are attached to. 2004 */ 2005 public URLSpan[] getUrls() { 2006 if (mText instanceof Spanned) { 2007 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 2008 } else { 2009 return new URLSpan[0]; 2010 } 2011 } 2012 2013 /** 2014 * Sets the color of the hint text. 2015 * 2016 * @attr ref android.R.styleable#TextView_textColorHint 2017 */ 2018 @android.view.RemotableViewMethod 2019 public final void setHintTextColor(int color) { 2020 mHintTextColor = ColorStateList.valueOf(color); 2021 updateTextColors(); 2022 } 2023 2024 /** 2025 * Sets the color of the hint text. 2026 * 2027 * @attr ref android.R.styleable#TextView_textColorHint 2028 */ 2029 public final void setHintTextColor(ColorStateList colors) { 2030 mHintTextColor = colors; 2031 updateTextColors(); 2032 } 2033 2034 /** 2035 * <p>Return the color used to paint the hint text.</p> 2036 * 2037 * @return Returns the list of hint text colors. 2038 */ 2039 public final ColorStateList getHintTextColors() { 2040 return mHintTextColor; 2041 } 2042 2043 /** 2044 * <p>Return the current color selected to paint the hint text.</p> 2045 * 2046 * @return Returns the current hint text color. 2047 */ 2048 public final int getCurrentHintTextColor() { 2049 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 2050 } 2051 2052 /** 2053 * Sets the color of links in the text. 2054 * 2055 * @attr ref android.R.styleable#TextView_textColorLink 2056 */ 2057 @android.view.RemotableViewMethod 2058 public final void setLinkTextColor(int color) { 2059 mLinkTextColor = ColorStateList.valueOf(color); 2060 updateTextColors(); 2061 } 2062 2063 /** 2064 * Sets the color of links in the text. 2065 * 2066 * @attr ref android.R.styleable#TextView_textColorLink 2067 */ 2068 public final void setLinkTextColor(ColorStateList colors) { 2069 mLinkTextColor = colors; 2070 updateTextColors(); 2071 } 2072 2073 /** 2074 * <p>Returns the color used to paint links in the text.</p> 2075 * 2076 * @return Returns the list of link text colors. 2077 */ 2078 public final ColorStateList getLinkTextColors() { 2079 return mLinkTextColor; 2080 } 2081 2082 /** 2083 * Sets the horizontal alignment of the text and the 2084 * vertical gravity that will be used when there is extra space 2085 * in the TextView beyond what is required for the text itself. 2086 * 2087 * @see android.view.Gravity 2088 * @attr ref android.R.styleable#TextView_gravity 2089 */ 2090 public void setGravity(int gravity) { 2091 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == 0) { 2092 gravity |= Gravity.LEFT; 2093 } 2094 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2095 gravity |= Gravity.TOP; 2096 } 2097 2098 boolean newLayout = false; 2099 2100 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) != 2101 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK)) { 2102 newLayout = true; 2103 } 2104 2105 if (gravity != mGravity) { 2106 invalidate(); 2107 } 2108 2109 mGravity = gravity; 2110 2111 if (mLayout != null && newLayout) { 2112 // XXX this is heavy-handed because no actual content changes. 2113 int want = mLayout.getWidth(); 2114 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2115 2116 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2117 mRight - mLeft - getCompoundPaddingLeft() - 2118 getCompoundPaddingRight(), true); 2119 } 2120 } 2121 2122 /** 2123 * Returns the horizontal and vertical alignment of this TextView. 2124 * 2125 * @see android.view.Gravity 2126 * @attr ref android.R.styleable#TextView_gravity 2127 */ 2128 public int getGravity() { 2129 return mGravity; 2130 } 2131 2132 /** 2133 * @return the flags on the Paint being used to display the text. 2134 * @see Paint#getFlags 2135 */ 2136 public int getPaintFlags() { 2137 return mTextPaint.getFlags(); 2138 } 2139 2140 /** 2141 * Sets flags on the Paint being used to display the text and 2142 * reflows the text if they are different from the old flags. 2143 * @see Paint#setFlags 2144 */ 2145 @android.view.RemotableViewMethod 2146 public void setPaintFlags(int flags) { 2147 if (mTextPaint.getFlags() != flags) { 2148 mTextPaint.setFlags(flags); 2149 2150 if (mLayout != null) { 2151 nullLayouts(); 2152 requestLayout(); 2153 invalidate(); 2154 } 2155 } 2156 } 2157 2158 /** 2159 * Sets whether the text should be allowed to be wider than the 2160 * View is. If false, it will be wrapped to the width of the View. 2161 * 2162 * @attr ref android.R.styleable#TextView_scrollHorizontally 2163 */ 2164 public void setHorizontallyScrolling(boolean whether) { 2165 mHorizontallyScrolling = whether; 2166 2167 if (mLayout != null) { 2168 nullLayouts(); 2169 requestLayout(); 2170 invalidate(); 2171 } 2172 } 2173 2174 /** 2175 * Makes the TextView at least this many lines tall. 2176 * 2177 * Setting this value overrides any other (minimum) height setting. A single line TextView will 2178 * set this value to 1. 2179 * 2180 * @attr ref android.R.styleable#TextView_minLines 2181 */ 2182 @android.view.RemotableViewMethod 2183 public void setMinLines(int minlines) { 2184 mMinimum = minlines; 2185 mMinMode = LINES; 2186 2187 requestLayout(); 2188 invalidate(); 2189 } 2190 2191 /** 2192 * Makes the TextView at least this many pixels tall. 2193 * 2194 * Setting this value overrides any other (minimum) number of lines setting. 2195 * 2196 * @attr ref android.R.styleable#TextView_minHeight 2197 */ 2198 @android.view.RemotableViewMethod 2199 public void setMinHeight(int minHeight) { 2200 mMinimum = minHeight; 2201 mMinMode = PIXELS; 2202 2203 requestLayout(); 2204 invalidate(); 2205 } 2206 2207 /** 2208 * Makes the TextView at most this many lines tall. 2209 * 2210 * Setting this value overrides any other (maximum) height setting. 2211 * 2212 * @attr ref android.R.styleable#TextView_maxLines 2213 */ 2214 @android.view.RemotableViewMethod 2215 public void setMaxLines(int maxlines) { 2216 mMaximum = maxlines; 2217 mMaxMode = LINES; 2218 2219 requestLayout(); 2220 invalidate(); 2221 } 2222 2223 /** 2224 * Makes the TextView at most this many pixels tall. This option is mutually exclusive with the 2225 * {@link #setMaxLines(int)} method. 2226 * 2227 * Setting this value overrides any other (maximum) number of lines setting. 2228 * 2229 * @attr ref android.R.styleable#TextView_maxHeight 2230 */ 2231 @android.view.RemotableViewMethod 2232 public void setMaxHeight(int maxHeight) { 2233 mMaximum = maxHeight; 2234 mMaxMode = PIXELS; 2235 2236 requestLayout(); 2237 invalidate(); 2238 } 2239 2240 /** 2241 * Makes the TextView exactly this many lines tall. 2242 * 2243 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2244 * height setting. A single line TextView will set this value to 1. 2245 * 2246 * @attr ref android.R.styleable#TextView_lines 2247 */ 2248 @android.view.RemotableViewMethod 2249 public void setLines(int lines) { 2250 mMaximum = mMinimum = lines; 2251 mMaxMode = mMinMode = LINES; 2252 2253 requestLayout(); 2254 invalidate(); 2255 } 2256 2257 /** 2258 * Makes the TextView exactly this many pixels tall. 2259 * You could do the same thing by specifying this number in the 2260 * LayoutParams. 2261 * 2262 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2263 * height setting. 2264 * 2265 * @attr ref android.R.styleable#TextView_height 2266 */ 2267 @android.view.RemotableViewMethod 2268 public void setHeight(int pixels) { 2269 mMaximum = mMinimum = pixels; 2270 mMaxMode = mMinMode = PIXELS; 2271 2272 requestLayout(); 2273 invalidate(); 2274 } 2275 2276 /** 2277 * Makes the TextView at least this many ems wide 2278 * 2279 * @attr ref android.R.styleable#TextView_minEms 2280 */ 2281 @android.view.RemotableViewMethod 2282 public void setMinEms(int minems) { 2283 mMinWidth = minems; 2284 mMinWidthMode = EMS; 2285 2286 requestLayout(); 2287 invalidate(); 2288 } 2289 2290 /** 2291 * Makes the TextView at least this many pixels wide 2292 * 2293 * @attr ref android.R.styleable#TextView_minWidth 2294 */ 2295 @android.view.RemotableViewMethod 2296 public void setMinWidth(int minpixels) { 2297 mMinWidth = minpixels; 2298 mMinWidthMode = PIXELS; 2299 2300 requestLayout(); 2301 invalidate(); 2302 } 2303 2304 /** 2305 * Makes the TextView at most this many ems wide 2306 * 2307 * @attr ref android.R.styleable#TextView_maxEms 2308 */ 2309 @android.view.RemotableViewMethod 2310 public void setMaxEms(int maxems) { 2311 mMaxWidth = maxems; 2312 mMaxWidthMode = EMS; 2313 2314 requestLayout(); 2315 invalidate(); 2316 } 2317 2318 /** 2319 * Makes the TextView at most this many pixels wide 2320 * 2321 * @attr ref android.R.styleable#TextView_maxWidth 2322 */ 2323 @android.view.RemotableViewMethod 2324 public void setMaxWidth(int maxpixels) { 2325 mMaxWidth = maxpixels; 2326 mMaxWidthMode = PIXELS; 2327 2328 requestLayout(); 2329 invalidate(); 2330 } 2331 2332 /** 2333 * Makes the TextView exactly this many ems wide 2334 * 2335 * @attr ref android.R.styleable#TextView_ems 2336 */ 2337 @android.view.RemotableViewMethod 2338 public void setEms(int ems) { 2339 mMaxWidth = mMinWidth = ems; 2340 mMaxWidthMode = mMinWidthMode = EMS; 2341 2342 requestLayout(); 2343 invalidate(); 2344 } 2345 2346 /** 2347 * Makes the TextView exactly this many pixels wide. 2348 * You could do the same thing by specifying this number in the 2349 * LayoutParams. 2350 * 2351 * @attr ref android.R.styleable#TextView_width 2352 */ 2353 @android.view.RemotableViewMethod 2354 public void setWidth(int pixels) { 2355 mMaxWidth = mMinWidth = pixels; 2356 mMaxWidthMode = mMinWidthMode = PIXELS; 2357 2358 requestLayout(); 2359 invalidate(); 2360 } 2361 2362 2363 /** 2364 * Sets line spacing for this TextView. Each line will have its height 2365 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2366 * 2367 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2368 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2369 */ 2370 public void setLineSpacing(float add, float mult) { 2371 mSpacingMult = mult; 2372 mSpacingAdd = add; 2373 2374 if (mLayout != null) { 2375 nullLayouts(); 2376 requestLayout(); 2377 invalidate(); 2378 } 2379 } 2380 2381 /** 2382 * Convenience method: Append the specified text to the TextView's 2383 * display buffer, upgrading it to BufferType.EDITABLE if it was 2384 * not already editable. 2385 */ 2386 public final void append(CharSequence text) { 2387 append(text, 0, text.length()); 2388 } 2389 2390 /** 2391 * Convenience method: Append the specified text slice to the TextView's 2392 * display buffer, upgrading it to BufferType.EDITABLE if it was 2393 * not already editable. 2394 */ 2395 public void append(CharSequence text, int start, int end) { 2396 if (!(mText instanceof Editable)) { 2397 setText(mText, BufferType.EDITABLE); 2398 } 2399 2400 ((Editable) mText).append(text, start, end); 2401 } 2402 2403 private void updateTextColors() { 2404 boolean inval = false; 2405 int color = mTextColor.getColorForState(getDrawableState(), 0); 2406 if (color != mCurTextColor) { 2407 mCurTextColor = color; 2408 inval = true; 2409 } 2410 if (mLinkTextColor != null) { 2411 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2412 if (color != mTextPaint.linkColor) { 2413 mTextPaint.linkColor = color; 2414 inval = true; 2415 } 2416 } 2417 if (mHintTextColor != null) { 2418 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2419 if (color != mCurHintTextColor && mText.length() == 0) { 2420 mCurHintTextColor = color; 2421 inval = true; 2422 } 2423 } 2424 if (inval) { 2425 invalidate(); 2426 } 2427 } 2428 2429 @Override 2430 protected void drawableStateChanged() { 2431 super.drawableStateChanged(); 2432 if (mTextColor != null && mTextColor.isStateful() 2433 || (mHintTextColor != null && mHintTextColor.isStateful()) 2434 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2435 updateTextColors(); 2436 } 2437 2438 final Drawables dr = mDrawables; 2439 if (dr != null) { 2440 int[] state = getDrawableState(); 2441 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2442 dr.mDrawableTop.setState(state); 2443 } 2444 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2445 dr.mDrawableBottom.setState(state); 2446 } 2447 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2448 dr.mDrawableLeft.setState(state); 2449 } 2450 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2451 dr.mDrawableRight.setState(state); 2452 } 2453 } 2454 } 2455 2456 /** 2457 * User interface state that is stored by TextView for implementing 2458 * {@link View#onSaveInstanceState}. 2459 */ 2460 public static class SavedState extends BaseSavedState { 2461 int selStart; 2462 int selEnd; 2463 CharSequence text; 2464 boolean frozenWithFocus; 2465 CharSequence error; 2466 2467 SavedState(Parcelable superState) { 2468 super(superState); 2469 } 2470 2471 @Override 2472 public void writeToParcel(Parcel out, int flags) { 2473 super.writeToParcel(out, flags); 2474 out.writeInt(selStart); 2475 out.writeInt(selEnd); 2476 out.writeInt(frozenWithFocus ? 1 : 0); 2477 TextUtils.writeToParcel(text, out, flags); 2478 2479 if (error == null) { 2480 out.writeInt(0); 2481 } else { 2482 out.writeInt(1); 2483 TextUtils.writeToParcel(error, out, flags); 2484 } 2485 } 2486 2487 @Override 2488 public String toString() { 2489 String str = "TextView.SavedState{" 2490 + Integer.toHexString(System.identityHashCode(this)) 2491 + " start=" + selStart + " end=" + selEnd; 2492 if (text != null) { 2493 str += " text=" + text; 2494 } 2495 return str + "}"; 2496 } 2497 2498 @SuppressWarnings("hiding") 2499 public static final Parcelable.Creator<SavedState> CREATOR 2500 = new Parcelable.Creator<SavedState>() { 2501 public SavedState createFromParcel(Parcel in) { 2502 return new SavedState(in); 2503 } 2504 2505 public SavedState[] newArray(int size) { 2506 return new SavedState[size]; 2507 } 2508 }; 2509 2510 private SavedState(Parcel in) { 2511 super(in); 2512 selStart = in.readInt(); 2513 selEnd = in.readInt(); 2514 frozenWithFocus = (in.readInt() != 0); 2515 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2516 2517 if (in.readInt() != 0) { 2518 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2519 } 2520 } 2521 } 2522 2523 @Override 2524 public Parcelable onSaveInstanceState() { 2525 Parcelable superState = super.onSaveInstanceState(); 2526 2527 // Save state if we are forced to 2528 boolean save = mFreezesText; 2529 int start = 0; 2530 int end = 0; 2531 2532 if (mText != null) { 2533 start = getSelectionStart(); 2534 end = getSelectionEnd(); 2535 if (start >= 0 || end >= 0) { 2536 // Or save state if there is a selection 2537 save = true; 2538 } 2539 } 2540 2541 if (save) { 2542 SavedState ss = new SavedState(superState); 2543 // XXX Should also save the current scroll position! 2544 ss.selStart = start; 2545 ss.selEnd = end; 2546 2547 if (mText instanceof Spanned) { 2548 /* 2549 * Calling setText() strips off any ChangeWatchers; 2550 * strip them now to avoid leaking references. 2551 * But do it to a copy so that if there are any 2552 * further changes to the text of this view, it 2553 * won't get into an inconsistent state. 2554 */ 2555 2556 Spannable sp = new SpannableString(mText); 2557 2558 for (ChangeWatcher cw : 2559 sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2560 sp.removeSpan(cw); 2561 } 2562 2563 ss.text = sp; 2564 } else { 2565 ss.text = mText.toString(); 2566 } 2567 2568 if (isFocused() && start >= 0 && end >= 0) { 2569 ss.frozenWithFocus = true; 2570 } 2571 2572 ss.error = mError; 2573 2574 return ss; 2575 } 2576 2577 return superState; 2578 } 2579 2580 @Override 2581 public void onRestoreInstanceState(Parcelable state) { 2582 if (!(state instanceof SavedState)) { 2583 super.onRestoreInstanceState(state); 2584 return; 2585 } 2586 2587 SavedState ss = (SavedState)state; 2588 super.onRestoreInstanceState(ss.getSuperState()); 2589 2590 // XXX restore buffer type too, as well as lots of other stuff 2591 if (ss.text != null) { 2592 setText(ss.text); 2593 } 2594 2595 if (ss.selStart >= 0 && ss.selEnd >= 0) { 2596 if (mText instanceof Spannable) { 2597 int len = mText.length(); 2598 2599 if (ss.selStart > len || ss.selEnd > len) { 2600 String restored = ""; 2601 2602 if (ss.text != null) { 2603 restored = "(restored) "; 2604 } 2605 2606 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 2607 "/" + ss.selEnd + " out of range for " + restored + 2608 "text " + mText); 2609 } else { 2610 Selection.setSelection((Spannable) mText, ss.selStart, 2611 ss.selEnd); 2612 2613 if (ss.frozenWithFocus) { 2614 mFrozenWithFocus = true; 2615 } 2616 } 2617 } 2618 } 2619 2620 if (ss.error != null) { 2621 final CharSequence error = ss.error; 2622 // Display the error later, after the first layout pass 2623 post(new Runnable() { 2624 public void run() { 2625 setError(error); 2626 } 2627 }); 2628 } 2629 } 2630 2631 /** 2632 * Control whether this text view saves its entire text contents when 2633 * freezing to an icicle, in addition to dynamic state such as cursor 2634 * position. By default this is false, not saving the text. Set to true 2635 * if the text in the text view is not being saved somewhere else in 2636 * persistent storage (such as in a content provider) so that if the 2637 * view is later thawed the user will not lose their data. 2638 * 2639 * @param freezesText Controls whether a frozen icicle should include the 2640 * entire text data: true to include it, false to not. 2641 * 2642 * @attr ref android.R.styleable#TextView_freezesText 2643 */ 2644 @android.view.RemotableViewMethod 2645 public void setFreezesText(boolean freezesText) { 2646 mFreezesText = freezesText; 2647 } 2648 2649 /** 2650 * Return whether this text view is including its entire text contents 2651 * in frozen icicles. 2652 * 2653 * @return Returns true if text is included, false if it isn't. 2654 * 2655 * @see #setFreezesText 2656 */ 2657 public boolean getFreezesText() { 2658 return mFreezesText; 2659 } 2660 2661 /////////////////////////////////////////////////////////////////////////// 2662 2663 /** 2664 * Sets the Factory used to create new Editables. 2665 */ 2666 public final void setEditableFactory(Editable.Factory factory) { 2667 mEditableFactory = factory; 2668 setText(mText); 2669 } 2670 2671 /** 2672 * Sets the Factory used to create new Spannables. 2673 */ 2674 public final void setSpannableFactory(Spannable.Factory factory) { 2675 mSpannableFactory = factory; 2676 setText(mText); 2677 } 2678 2679 /** 2680 * Sets the string value of the TextView. TextView <em>does not</em> accept 2681 * HTML-like formatting, which you can do with text strings in XML resource files. 2682 * To style your strings, attach android.text.style.* objects to a 2683 * {@link android.text.SpannableString SpannableString}, or see the 2684 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 2685 * Available Resource Types</a> documentation for an example of setting 2686 * formatted text in the XML resource file. 2687 * 2688 * @attr ref android.R.styleable#TextView_text 2689 */ 2690 @android.view.RemotableViewMethod 2691 public final void setText(CharSequence text) { 2692 setText(text, mBufferType); 2693 } 2694 2695 /** 2696 * Like {@link #setText(CharSequence)}, 2697 * except that the cursor position (if any) is retained in the new text. 2698 * 2699 * @param text The new text to place in the text view. 2700 * 2701 * @see #setText(CharSequence) 2702 */ 2703 @android.view.RemotableViewMethod 2704 public final void setTextKeepState(CharSequence text) { 2705 setTextKeepState(text, mBufferType); 2706 } 2707 2708 /** 2709 * Sets the text that this TextView is to display (see 2710 * {@link #setText(CharSequence)}) and also sets whether it is stored 2711 * in a styleable/spannable buffer and whether it is editable. 2712 * 2713 * @attr ref android.R.styleable#TextView_text 2714 * @attr ref android.R.styleable#TextView_bufferType 2715 */ 2716 public void setText(CharSequence text, BufferType type) { 2717 setText(text, type, true, 0); 2718 2719 if (mCharWrapper != null) { 2720 mCharWrapper.mChars = null; 2721 } 2722 } 2723 2724 private void setText(CharSequence text, BufferType type, 2725 boolean notifyBefore, int oldlen) { 2726 if (text == null) { 2727 text = ""; 2728 } 2729 2730 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 2731 2732 if (text instanceof Spanned && 2733 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 2734 setHorizontalFadingEdgeEnabled(true); 2735 setEllipsize(TextUtils.TruncateAt.MARQUEE); 2736 } 2737 2738 int n = mFilters.length; 2739 for (int i = 0; i < n; i++) { 2740 CharSequence out = mFilters[i].filter(text, 0, text.length(), 2741 EMPTY_SPANNED, 0, 0); 2742 if (out != null) { 2743 text = out; 2744 } 2745 } 2746 2747 if (notifyBefore) { 2748 if (mText != null) { 2749 oldlen = mText.length(); 2750 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 2751 } else { 2752 sendBeforeTextChanged("", 0, 0, text.length()); 2753 } 2754 } 2755 2756 boolean needEditableForNotification = false; 2757 2758 if (mListeners != null && mListeners.size() != 0) { 2759 needEditableForNotification = true; 2760 } 2761 2762 if (type == BufferType.EDITABLE || mInput != null || 2763 needEditableForNotification) { 2764 Editable t = mEditableFactory.newEditable(text); 2765 text = t; 2766 setFilters(t, mFilters); 2767 InputMethodManager imm = InputMethodManager.peekInstance(); 2768 if (imm != null) imm.restartInput(this); 2769 } else if (type == BufferType.SPANNABLE || mMovement != null) { 2770 text = mSpannableFactory.newSpannable(text); 2771 } else if (!(text instanceof CharWrapper)) { 2772 text = TextUtils.stringOrSpannedString(text); 2773 } 2774 2775 if (mAutoLinkMask != 0) { 2776 Spannable s2; 2777 2778 if (type == BufferType.EDITABLE || text instanceof Spannable) { 2779 s2 = (Spannable) text; 2780 } else { 2781 s2 = mSpannableFactory.newSpannable(text); 2782 } 2783 2784 if (Linkify.addLinks(s2, mAutoLinkMask)) { 2785 text = s2; 2786 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 2787 2788 /* 2789 * We must go ahead and set the text before changing the 2790 * movement method, because setMovementMethod() may call 2791 * setText() again to try to upgrade the buffer type. 2792 */ 2793 mText = text; 2794 2795 // Do not change the movement method for text that support text selection as it 2796 // would prevent an arbitrary cursor displacement. 2797 final boolean hasTextSelection = this instanceof EditText || mTextIsSelectable; 2798 if (mLinksClickable && !hasTextSelection) { 2799 setMovementMethod(LinkMovementMethod.getInstance()); 2800 } 2801 } 2802 } 2803 2804 mBufferType = type; 2805 mText = text; 2806 2807 if (mTransformation == null) 2808 mTransformed = text; 2809 else 2810 mTransformed = mTransformation.getTransformation(text, this); 2811 2812 final int textLength = text.length(); 2813 2814 if (text instanceof Spannable) { 2815 Spannable sp = (Spannable) text; 2816 2817 // Remove any ChangeWatchers that might have come 2818 // from other TextViews. 2819 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 2820 final int count = watchers.length; 2821 for (int i = 0; i < count; i++) 2822 sp.removeSpan(watchers[i]); 2823 2824 if (mChangeWatcher == null) 2825 mChangeWatcher = new ChangeWatcher(); 2826 2827 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 2828 (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 2829 2830 if (mInput != null) { 2831 sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2832 } 2833 2834 if (mTransformation != null) { 2835 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2836 2837 } 2838 2839 if (mMovement != null) { 2840 mMovement.initialize(this, (Spannable) text); 2841 2842 /* 2843 * Initializing the movement method will have set the 2844 * selection, so reset mSelectionMoved to keep that from 2845 * interfering with the normal on-focus selection-setting. 2846 */ 2847 mSelectionMoved = false; 2848 } 2849 } 2850 2851 if (mLayout != null) { 2852 checkForRelayout(); 2853 } 2854 2855 sendOnTextChanged(text, 0, oldlen, textLength); 2856 onTextChanged(text, 0, oldlen, textLength); 2857 2858 if (needEditableForNotification) { 2859 sendAfterTextChanged((Editable) text); 2860 } 2861 2862 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 2863 prepareCursorControllers(); 2864 } 2865 2866 /** 2867 * Sets the TextView to display the specified slice of the specified 2868 * char array. You must promise that you will not change the contents 2869 * of the array except for right before another call to setText(), 2870 * since the TextView has no way to know that the text 2871 * has changed and that it needs to invalidate and re-layout. 2872 */ 2873 public final void setText(char[] text, int start, int len) { 2874 int oldlen = 0; 2875 2876 if (start < 0 || len < 0 || start + len > text.length) { 2877 throw new IndexOutOfBoundsException(start + ", " + len); 2878 } 2879 2880 /* 2881 * We must do the before-notification here ourselves because if 2882 * the old text is a CharWrapper we destroy it before calling 2883 * into the normal path. 2884 */ 2885 if (mText != null) { 2886 oldlen = mText.length(); 2887 sendBeforeTextChanged(mText, 0, oldlen, len); 2888 } else { 2889 sendBeforeTextChanged("", 0, 0, len); 2890 } 2891 2892 if (mCharWrapper == null) { 2893 mCharWrapper = new CharWrapper(text, start, len); 2894 } else { 2895 mCharWrapper.set(text, start, len); 2896 } 2897 2898 setText(mCharWrapper, mBufferType, false, oldlen); 2899 } 2900 2901 private static class CharWrapper 2902 implements CharSequence, GetChars, GraphicsOperations { 2903 private char[] mChars; 2904 private int mStart, mLength; 2905 2906 public CharWrapper(char[] chars, int start, int len) { 2907 mChars = chars; 2908 mStart = start; 2909 mLength = len; 2910 } 2911 2912 /* package */ void set(char[] chars, int start, int len) { 2913 mChars = chars; 2914 mStart = start; 2915 mLength = len; 2916 } 2917 2918 public int length() { 2919 return mLength; 2920 } 2921 2922 public char charAt(int off) { 2923 return mChars[off + mStart]; 2924 } 2925 2926 @Override 2927 public String toString() { 2928 return new String(mChars, mStart, mLength); 2929 } 2930 2931 public CharSequence subSequence(int start, int end) { 2932 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2933 throw new IndexOutOfBoundsException(start + ", " + end); 2934 } 2935 2936 return new String(mChars, start + mStart, end - start); 2937 } 2938 2939 public void getChars(int start, int end, char[] buf, int off) { 2940 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2941 throw new IndexOutOfBoundsException(start + ", " + end); 2942 } 2943 2944 System.arraycopy(mChars, start + mStart, buf, off, end - start); 2945 } 2946 2947 public void drawText(Canvas c, int start, int end, 2948 float x, float y, Paint p) { 2949 c.drawText(mChars, start + mStart, end - start, x, y, p); 2950 } 2951 2952 public void drawTextRun(Canvas c, int start, int end, 2953 int contextStart, int contextEnd, float x, float y, int flags, Paint p) { 2954 int count = end - start; 2955 int contextCount = contextEnd - contextStart; 2956 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 2957 contextCount, x, y, flags, p); 2958 } 2959 2960 public float measureText(int start, int end, Paint p) { 2961 return p.measureText(mChars, start + mStart, end - start); 2962 } 2963 2964 public int getTextWidths(int start, int end, float[] widths, Paint p) { 2965 return p.getTextWidths(mChars, start + mStart, end - start, widths); 2966 } 2967 2968 public float getTextRunAdvances(int start, int end, int contextStart, 2969 int contextEnd, int flags, float[] advances, int advancesIndex, 2970 Paint p) { 2971 int count = end - start; 2972 int contextCount = contextEnd - contextStart; 2973 return p.getTextRunAdvances(mChars, start + mStart, count, 2974 contextStart + mStart, contextCount, flags, advances, 2975 advancesIndex); 2976 } 2977 2978 public float getTextRunAdvances(int start, int end, int contextStart, 2979 int contextEnd, int flags, float[] advances, int advancesIndex, 2980 Paint p, int reserved) { 2981 int count = end - start; 2982 int contextCount = contextEnd - contextStart; 2983 return p.getTextRunAdvances(mChars, start + mStart, count, 2984 contextStart + mStart, contextCount, flags, advances, 2985 advancesIndex, reserved); 2986 } 2987 2988 public int getTextRunCursor(int contextStart, int contextEnd, int flags, 2989 int offset, int cursorOpt, Paint p) { 2990 int contextCount = contextEnd - contextStart; 2991 return p.getTextRunCursor(mChars, contextStart + mStart, 2992 contextCount, flags, offset + mStart, cursorOpt); 2993 } 2994 } 2995 2996 /** 2997 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 2998 * except that the cursor position (if any) is retained in the new text. 2999 * 3000 * @see #setText(CharSequence, android.widget.TextView.BufferType) 3001 */ 3002 public final void setTextKeepState(CharSequence text, BufferType type) { 3003 int start = getSelectionStart(); 3004 int end = getSelectionEnd(); 3005 int len = text.length(); 3006 3007 setText(text, type); 3008 3009 if (start >= 0 || end >= 0) { 3010 if (mText instanceof Spannable) { 3011 Selection.setSelection((Spannable) mText, 3012 Math.max(0, Math.min(start, len)), 3013 Math.max(0, Math.min(end, len))); 3014 } 3015 } 3016 } 3017 3018 @android.view.RemotableViewMethod 3019 public final void setText(int resid) { 3020 setText(getContext().getResources().getText(resid)); 3021 } 3022 3023 public final void setText(int resid, BufferType type) { 3024 setText(getContext().getResources().getText(resid), type); 3025 } 3026 3027 /** 3028 * Sets the text to be displayed when the text of the TextView is empty. 3029 * Null means to use the normal empty text. The hint does not currently 3030 * participate in determining the size of the view. 3031 * 3032 * @attr ref android.R.styleable#TextView_hint 3033 */ 3034 @android.view.RemotableViewMethod 3035 public final void setHint(CharSequence hint) { 3036 mHint = TextUtils.stringOrSpannedString(hint); 3037 3038 if (mLayout != null) { 3039 checkForRelayout(); 3040 } 3041 3042 if (mText.length() == 0) { 3043 invalidate(); 3044 } 3045 } 3046 3047 /** 3048 * Sets the text to be displayed when the text of the TextView is empty, 3049 * from a resource. 3050 * 3051 * @attr ref android.R.styleable#TextView_hint 3052 */ 3053 @android.view.RemotableViewMethod 3054 public final void setHint(int resid) { 3055 setHint(getContext().getResources().getText(resid)); 3056 } 3057 3058 /** 3059 * Returns the hint that is displayed when the text of the TextView 3060 * is empty. 3061 * 3062 * @attr ref android.R.styleable#TextView_hint 3063 */ 3064 @ViewDebug.CapturedViewProperty 3065 public CharSequence getHint() { 3066 return mHint; 3067 } 3068 3069 private boolean isMultilineInputType(int type) { 3070 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 3071 (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 3072 } 3073 3074 /** 3075 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 3076 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 3077 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 3078 * then a soft keyboard will not be displayed for this text view. 3079 * 3080 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 3081 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 3082 * type. 3083 * 3084 * @see #getInputType() 3085 * @see #setRawInputType(int) 3086 * @see android.text.InputType 3087 * @attr ref android.R.styleable#TextView_inputType 3088 */ 3089 public void setInputType(int type) { 3090 final boolean wasPassword = isPasswordInputType(mInputType); 3091 final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType); 3092 setInputType(type, false); 3093 final boolean isPassword = isPasswordInputType(type); 3094 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 3095 boolean forceUpdate = false; 3096 if (isPassword) { 3097 setTransformationMethod(PasswordTransformationMethod.getInstance()); 3098 setTypefaceByIndex(MONOSPACE, 0); 3099 } else if (isVisiblePassword) { 3100 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3101 forceUpdate = true; 3102 } 3103 setTypefaceByIndex(MONOSPACE, 0); 3104 } else if (wasPassword || wasVisiblePassword) { 3105 // not in password mode, clean up typeface and transformation 3106 setTypefaceByIndex(-1, -1); 3107 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3108 forceUpdate = true; 3109 } 3110 } 3111 3112 boolean singleLine = !isMultilineInputType(type); 3113 3114 // We need to update the single line mode if it has changed or we 3115 // were previously in password mode. 3116 if (mSingleLine != singleLine || forceUpdate) { 3117 // Change single line mode, but only change the transformation if 3118 // we are not in password mode. 3119 applySingleLine(singleLine, !isPassword, true); 3120 } 3121 3122 InputMethodManager imm = InputMethodManager.peekInstance(); 3123 if (imm != null) imm.restartInput(this); 3124 } 3125 3126 /** 3127 * It would be better to rely on the input type for everything. A password inputType should have 3128 * a password transformation. We should hence use isPasswordInputType instead of this method. 3129 * 3130 * We should: 3131 * - Call setInputType in setKeyListener instead of changing the input type directly (which 3132 * would install the correct transformation). 3133 * - Refuse the installation of a non-password transformation in setTransformation if the input 3134 * type is password. 3135 * 3136 * However, this is like this for legacy reasons and we cannot break existing apps. This method 3137 * is useful since it matches what the user can see (obfuscated text or not). 3138 * 3139 * @return true if the current transformation method is of the password type. 3140 */ 3141 private boolean hasPasswordTransformationMethod() { 3142 return mTransformation instanceof PasswordTransformationMethod; 3143 } 3144 3145 private boolean isPasswordInputType(int inputType) { 3146 final int variation = 3147 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3148 return variation 3149 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 3150 || variation 3151 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 3152 || variation 3153 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 3154 } 3155 3156 private boolean isVisiblePasswordInputType(int inputType) { 3157 final int variation = 3158 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3159 return variation 3160 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 3161 } 3162 3163 /** 3164 * Directly change the content type integer of the text view, without 3165 * modifying any other state. 3166 * @see #setInputType(int) 3167 * @see android.text.InputType 3168 * @attr ref android.R.styleable#TextView_inputType 3169 */ 3170 public void setRawInputType(int type) { 3171 mInputType = type; 3172 } 3173 3174 private void setInputType(int type, boolean direct) { 3175 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 3176 KeyListener input; 3177 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 3178 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 3179 TextKeyListener.Capitalize cap; 3180 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 3181 cap = TextKeyListener.Capitalize.CHARACTERS; 3182 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 3183 cap = TextKeyListener.Capitalize.WORDS; 3184 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 3185 cap = TextKeyListener.Capitalize.SENTENCES; 3186 } else { 3187 cap = TextKeyListener.Capitalize.NONE; 3188 } 3189 input = TextKeyListener.getInstance(autotext, cap); 3190 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 3191 input = DigitsKeyListener.getInstance( 3192 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 3193 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 3194 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 3195 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 3196 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 3197 input = DateKeyListener.getInstance(); 3198 break; 3199 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 3200 input = TimeKeyListener.getInstance(); 3201 break; 3202 default: 3203 input = DateTimeKeyListener.getInstance(); 3204 break; 3205 } 3206 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 3207 input = DialerKeyListener.getInstance(); 3208 } else { 3209 input = TextKeyListener.getInstance(); 3210 } 3211 setRawInputType(type); 3212 if (direct) mInput = input; 3213 else { 3214 setKeyListenerOnly(input); 3215 } 3216 } 3217 3218 /** 3219 * Get the type of the content. 3220 * 3221 * @see #setInputType(int) 3222 * @see android.text.InputType 3223 */ 3224 public int getInputType() { 3225 return mInputType; 3226 } 3227 3228 /** 3229 * Change the editor type integer associated with the text view, which 3230 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3231 * has focus. 3232 * @see #getImeOptions 3233 * @see android.view.inputmethod.EditorInfo 3234 * @attr ref android.R.styleable#TextView_imeOptions 3235 */ 3236 public void setImeOptions(int imeOptions) { 3237 if (mInputContentType == null) { 3238 mInputContentType = new InputContentType(); 3239 } 3240 mInputContentType.imeOptions = imeOptions; 3241 } 3242 3243 /** 3244 * Get the type of the IME editor. 3245 * 3246 * @see #setImeOptions(int) 3247 * @see android.view.inputmethod.EditorInfo 3248 */ 3249 public int getImeOptions() { 3250 return mInputContentType != null 3251 ? mInputContentType.imeOptions : EditorInfo.IME_NULL; 3252 } 3253 3254 /** 3255 * Change the custom IME action associated with the text view, which 3256 * will be reported to an IME with {@link EditorInfo#actionLabel} 3257 * and {@link EditorInfo#actionId} when it has focus. 3258 * @see #getImeActionLabel 3259 * @see #getImeActionId 3260 * @see android.view.inputmethod.EditorInfo 3261 * @attr ref android.R.styleable#TextView_imeActionLabel 3262 * @attr ref android.R.styleable#TextView_imeActionId 3263 */ 3264 public void setImeActionLabel(CharSequence label, int actionId) { 3265 if (mInputContentType == null) { 3266 mInputContentType = new InputContentType(); 3267 } 3268 mInputContentType.imeActionLabel = label; 3269 mInputContentType.imeActionId = actionId; 3270 } 3271 3272 /** 3273 * Get the IME action label previous set with {@link #setImeActionLabel}. 3274 * 3275 * @see #setImeActionLabel 3276 * @see android.view.inputmethod.EditorInfo 3277 */ 3278 public CharSequence getImeActionLabel() { 3279 return mInputContentType != null 3280 ? mInputContentType.imeActionLabel : null; 3281 } 3282 3283 /** 3284 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3285 * 3286 * @see #setImeActionLabel 3287 * @see android.view.inputmethod.EditorInfo 3288 */ 3289 public int getImeActionId() { 3290 return mInputContentType != null 3291 ? mInputContentType.imeActionId : 0; 3292 } 3293 3294 /** 3295 * Set a special listener to be called when an action is performed 3296 * on the text view. This will be called when the enter key is pressed, 3297 * or when an action supplied to the IME is selected by the user. Setting 3298 * this means that the normal hard key event will not insert a newline 3299 * into the text view, even if it is multi-line; holding down the ALT 3300 * modifier will, however, allow the user to insert a newline character. 3301 */ 3302 public void setOnEditorActionListener(OnEditorActionListener l) { 3303 if (mInputContentType == null) { 3304 mInputContentType = new InputContentType(); 3305 } 3306 mInputContentType.onEditorActionListener = l; 3307 } 3308 3309 /** 3310 * Called when an attached input method calls 3311 * {@link InputConnection#performEditorAction(int) 3312 * InputConnection.performEditorAction()} 3313 * for this text view. The default implementation will call your action 3314 * listener supplied to {@link #setOnEditorActionListener}, or perform 3315 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3316 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 3317 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 3318 * EditorInfo.IME_ACTION_DONE}. 3319 * 3320 * <p>For backwards compatibility, if no IME options have been set and the 3321 * text view would not normally advance focus on enter, then 3322 * the NEXT and DONE actions received here will be turned into an enter 3323 * key down/up pair to go through the normal key handling. 3324 * 3325 * @param actionCode The code of the action being performed. 3326 * 3327 * @see #setOnEditorActionListener 3328 */ 3329 public void onEditorAction(int actionCode) { 3330 final InputContentType ict = mInputContentType; 3331 if (ict != null) { 3332 if (ict.onEditorActionListener != null) { 3333 if (ict.onEditorActionListener.onEditorAction(this, 3334 actionCode, null)) { 3335 return; 3336 } 3337 } 3338 3339 // This is the handling for some default action. 3340 // Note that for backwards compatibility we don't do this 3341 // default handling if explicit ime options have not been given, 3342 // instead turning this into the normal enter key codes that an 3343 // app may be expecting. 3344 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3345 View v = focusSearch(FOCUS_DOWN); 3346 if (v != null) { 3347 if (!v.requestFocus(FOCUS_DOWN)) { 3348 throw new IllegalStateException("focus search returned a view " + 3349 "that wasn't able to take focus!"); 3350 } 3351 } 3352 return; 3353 3354 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 3355 View v = focusSearch(FOCUS_UP); 3356 if (v != null) { 3357 if (!v.requestFocus(FOCUS_UP)) { 3358 throw new IllegalStateException("focus search returned a view " + 3359 "that wasn't able to take focus!"); 3360 } 3361 } 3362 return; 3363 3364 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3365 InputMethodManager imm = InputMethodManager.peekInstance(); 3366 if (imm != null && imm.isActive(this)) { 3367 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3368 } 3369 return; 3370 } 3371 } 3372 3373 Handler h = getHandler(); 3374 if (h != null) { 3375 long eventTime = SystemClock.uptimeMillis(); 3376 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3377 new KeyEvent(eventTime, eventTime, 3378 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 3379 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3380 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3381 | KeyEvent.FLAG_EDITOR_ACTION))); 3382 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3383 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3384 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 3385 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3386 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3387 | KeyEvent.FLAG_EDITOR_ACTION))); 3388 } 3389 } 3390 3391 /** 3392 * Set the private content type of the text, which is the 3393 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3394 * field that will be filled in when creating an input connection. 3395 * 3396 * @see #getPrivateImeOptions() 3397 * @see EditorInfo#privateImeOptions 3398 * @attr ref android.R.styleable#TextView_privateImeOptions 3399 */ 3400 public void setPrivateImeOptions(String type) { 3401 if (mInputContentType == null) mInputContentType = new InputContentType(); 3402 mInputContentType.privateImeOptions = type; 3403 } 3404 3405 /** 3406 * Get the private type of the content. 3407 * 3408 * @see #setPrivateImeOptions(String) 3409 * @see EditorInfo#privateImeOptions 3410 */ 3411 public String getPrivateImeOptions() { 3412 return mInputContentType != null 3413 ? mInputContentType.privateImeOptions : null; 3414 } 3415 3416 /** 3417 * Set the extra input data of the text, which is the 3418 * {@link EditorInfo#extras TextBoxAttribute.extras} 3419 * Bundle that will be filled in when creating an input connection. The 3420 * given integer is the resource ID of an XML resource holding an 3421 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3422 * 3423 * @see #getInputExtras(boolean) 3424 * @see EditorInfo#extras 3425 * @attr ref android.R.styleable#TextView_editorExtras 3426 */ 3427 public void setInputExtras(int xmlResId) 3428 throws XmlPullParserException, IOException { 3429 XmlResourceParser parser = getResources().getXml(xmlResId); 3430 if (mInputContentType == null) mInputContentType = new InputContentType(); 3431 mInputContentType.extras = new Bundle(); 3432 getResources().parseBundleExtras(parser, mInputContentType.extras); 3433 } 3434 3435 /** 3436 * Retrieve the input extras currently associated with the text view, which 3437 * can be viewed as well as modified. 3438 * 3439 * @param create If true, the extras will be created if they don't already 3440 * exist. Otherwise, null will be returned if none have been created. 3441 * @see #setInputExtras(int) 3442 * @see EditorInfo#extras 3443 * @attr ref android.R.styleable#TextView_editorExtras 3444 */ 3445 public Bundle getInputExtras(boolean create) { 3446 if (mInputContentType == null) { 3447 if (!create) return null; 3448 mInputContentType = new InputContentType(); 3449 } 3450 if (mInputContentType.extras == null) { 3451 if (!create) return null; 3452 mInputContentType.extras = new Bundle(); 3453 } 3454 return mInputContentType.extras; 3455 } 3456 3457 /** 3458 * Returns the error message that was set to be displayed with 3459 * {@link #setError}, or <code>null</code> if no error was set 3460 * or if it the error was cleared by the widget after user input. 3461 */ 3462 public CharSequence getError() { 3463 return mError; 3464 } 3465 3466 /** 3467 * Sets the right-hand compound drawable of the TextView to the "error" 3468 * icon and sets an error message that will be displayed in a popup when 3469 * the TextView has focus. The icon and error message will be reset to 3470 * null when any key events cause changes to the TextView's text. If the 3471 * <code>error</code> is <code>null</code>, the error message and icon 3472 * will be cleared. 3473 */ 3474 @android.view.RemotableViewMethod 3475 public void setError(CharSequence error) { 3476 if (error == null) { 3477 setError(null, null); 3478 } else { 3479 Drawable dr = getContext().getResources(). 3480 getDrawable(com.android.internal.R.drawable.indicator_input_error); 3481 3482 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3483 setError(error, dr); 3484 } 3485 } 3486 3487 /** 3488 * Sets the right-hand compound drawable of the TextView to the specified 3489 * icon and sets an error message that will be displayed in a popup when 3490 * the TextView has focus. The icon and error message will be reset to 3491 * null when any key events cause changes to the TextView's text. The 3492 * drawable must already have had {@link Drawable#setBounds} set on it. 3493 * If the <code>error</code> is <code>null</code>, the error message will 3494 * be cleared (and you should provide a <code>null</code> icon as well). 3495 */ 3496 public void setError(CharSequence error, Drawable icon) { 3497 error = TextUtils.stringOrSpannedString(error); 3498 3499 mError = error; 3500 mErrorWasChanged = true; 3501 final Drawables dr = mDrawables; 3502 if (dr != null) { 3503 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, icon, dr.mDrawableBottom); 3504 } else { 3505 setCompoundDrawables(null, null, icon, null); 3506 } 3507 3508 if (error == null) { 3509 if (mPopup != null) { 3510 if (mPopup.isShowing()) { 3511 mPopup.dismiss(); 3512 } 3513 3514 mPopup = null; 3515 } 3516 } else { 3517 if (isFocused()) { 3518 showError(); 3519 } 3520 } 3521 } 3522 3523 private void showError() { 3524 if (getWindowToken() == null) { 3525 mShowErrorAfterAttach = true; 3526 return; 3527 } 3528 3529 if (mPopup == null) { 3530 LayoutInflater inflater = LayoutInflater.from(getContext()); 3531 final TextView err = (TextView) inflater.inflate( 3532 com.android.internal.R.layout.textview_hint, null); 3533 3534 final float scale = getResources().getDisplayMetrics().density; 3535 mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), (int) (50 * scale + 0.5f)); 3536 mPopup.setFocusable(false); 3537 // The user is entering text, so the input method is needed. We 3538 // don't want the popup to be displayed on top of it. 3539 mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 3540 } 3541 3542 TextView tv = (TextView) mPopup.getContentView(); 3543 chooseSize(mPopup, mError, tv); 3544 tv.setText(mError); 3545 3546 mPopup.showAsDropDown(this, getErrorX(), getErrorY()); 3547 mPopup.fixDirection(mPopup.isAboveAnchor()); 3548 } 3549 3550 private static class ErrorPopup extends PopupWindow { 3551 private boolean mAbove = false; 3552 private final TextView mView; 3553 private int mPopupInlineErrorBackgroundId = 0; 3554 private int mPopupInlineErrorAboveBackgroundId = 0; 3555 3556 ErrorPopup(TextView v, int width, int height) { 3557 super(v, width, height); 3558 mView = v; 3559 // Make sure the TextView has a background set as it will be used the first time it is 3560 // shown and positionned. Initialized with below background, which should have 3561 // dimensions identical to the above version for this to work (and is more likely). 3562 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3563 com.android.internal.R.styleable.Theme_errorMessageBackground); 3564 mView.setBackgroundResource(mPopupInlineErrorBackgroundId); 3565 } 3566 3567 void fixDirection(boolean above) { 3568 mAbove = above; 3569 3570 if (above) { 3571 mPopupInlineErrorAboveBackgroundId = 3572 getResourceId(mPopupInlineErrorAboveBackgroundId, 3573 com.android.internal.R.styleable.Theme_errorMessageAboveBackground); 3574 } else { 3575 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3576 com.android.internal.R.styleable.Theme_errorMessageBackground); 3577 } 3578 3579 mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId : 3580 mPopupInlineErrorBackgroundId); 3581 } 3582 3583 private int getResourceId(int currentId, int index) { 3584 if (currentId == 0) { 3585 TypedArray styledAttributes = mView.getContext().obtainStyledAttributes( 3586 R.styleable.Theme); 3587 currentId = styledAttributes.getResourceId(index, 0); 3588 styledAttributes.recycle(); 3589 } 3590 return currentId; 3591 } 3592 3593 @Override 3594 public void update(int x, int y, int w, int h, boolean force) { 3595 super.update(x, y, w, h, force); 3596 3597 boolean above = isAboveAnchor(); 3598 if (above != mAbove) { 3599 fixDirection(above); 3600 } 3601 } 3602 } 3603 3604 /** 3605 * Returns the Y offset to make the pointy top of the error point 3606 * at the middle of the error icon. 3607 */ 3608 private int getErrorX() { 3609 /* 3610 * The "25" is the distance between the point and the right edge 3611 * of the background 3612 */ 3613 final float scale = getResources().getDisplayMetrics().density; 3614 3615 final Drawables dr = mDrawables; 3616 return getWidth() - mPopup.getWidth() - getPaddingRight() - 3617 (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 3618 } 3619 3620 /** 3621 * Returns the Y offset to make the pointy top of the error point 3622 * at the bottom of the error icon. 3623 */ 3624 private int getErrorY() { 3625 /* 3626 * Compound, not extended, because the icon is not clipped 3627 * if the text height is smaller. 3628 */ 3629 final int compoundPaddingTop = getCompoundPaddingTop(); 3630 int vspace = mBottom - mTop - getCompoundPaddingBottom() - compoundPaddingTop; 3631 3632 final Drawables dr = mDrawables; 3633 int icontop = compoundPaddingTop + 3634 (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 3635 3636 /* 3637 * The "2" is the distance between the point and the top edge 3638 * of the background. 3639 */ 3640 final float scale = getResources().getDisplayMetrics().density; 3641 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) - getHeight() - 3642 (int) (2 * scale + 0.5f); 3643 } 3644 3645 private void hideError() { 3646 if (mPopup != null) { 3647 if (mPopup.isShowing()) { 3648 mPopup.dismiss(); 3649 } 3650 } 3651 3652 mShowErrorAfterAttach = false; 3653 } 3654 3655 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 3656 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 3657 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 3658 3659 /* 3660 * Figure out how big the text would be if we laid it out to the 3661 * full width of this view minus the border. 3662 */ 3663 int cap = getWidth() - wid; 3664 if (cap < 0) { 3665 cap = 200; // We must not be measured yet -- setFrame() will fix it. 3666 } 3667 3668 Layout l = new StaticLayout(text, tv.getPaint(), cap, 3669 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 3670 float max = 0; 3671 for (int i = 0; i < l.getLineCount(); i++) { 3672 max = Math.max(max, l.getLineWidth(i)); 3673 } 3674 3675 /* 3676 * Now set the popup size to be big enough for the text plus the border. 3677 */ 3678 pop.setWidth(wid + (int) Math.ceil(max)); 3679 pop.setHeight(ht + l.getHeight()); 3680 } 3681 3682 3683 @Override 3684 protected boolean setFrame(int l, int t, int r, int b) { 3685 boolean result = super.setFrame(l, t, r, b); 3686 3687 if (mPopup != null) { 3688 TextView tv = (TextView) mPopup.getContentView(); 3689 chooseSize(mPopup, mError, tv); 3690 mPopup.update(this, getErrorX(), getErrorY(), 3691 mPopup.getWidth(), mPopup.getHeight()); 3692 } 3693 3694 restartMarqueeIfNeeded(); 3695 3696 return result; 3697 } 3698 3699 private void restartMarqueeIfNeeded() { 3700 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 3701 mRestartMarquee = false; 3702 startMarquee(); 3703 } 3704 } 3705 3706 /** 3707 * Sets the list of input filters that will be used if the buffer is 3708 * Editable. Has no effect otherwise. 3709 * 3710 * @attr ref android.R.styleable#TextView_maxLength 3711 */ 3712 public void setFilters(InputFilter[] filters) { 3713 if (filters == null) { 3714 throw new IllegalArgumentException(); 3715 } 3716 3717 mFilters = filters; 3718 3719 if (mText instanceof Editable) { 3720 setFilters((Editable) mText, filters); 3721 } 3722 } 3723 3724 /** 3725 * Sets the list of input filters on the specified Editable, 3726 * and includes mInput in the list if it is an InputFilter. 3727 */ 3728 private void setFilters(Editable e, InputFilter[] filters) { 3729 if (mInput instanceof InputFilter) { 3730 InputFilter[] nf = new InputFilter[filters.length + 1]; 3731 3732 System.arraycopy(filters, 0, nf, 0, filters.length); 3733 nf[filters.length] = (InputFilter) mInput; 3734 3735 e.setFilters(nf); 3736 } else { 3737 e.setFilters(filters); 3738 } 3739 } 3740 3741 /** 3742 * Returns the current list of input filters. 3743 */ 3744 public InputFilter[] getFilters() { 3745 return mFilters; 3746 } 3747 3748 ///////////////////////////////////////////////////////////////////////// 3749 3750 private int getVerticalOffset(boolean forceNormal) { 3751 int voffset = 0; 3752 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3753 3754 Layout l = mLayout; 3755 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3756 l = mHintLayout; 3757 } 3758 3759 if (gravity != Gravity.TOP) { 3760 int boxht; 3761 3762 if (l == mHintLayout) { 3763 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3764 getCompoundPaddingBottom(); 3765 } else { 3766 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3767 getExtendedPaddingBottom(); 3768 } 3769 int textht = l.getHeight(); 3770 3771 if (textht < boxht) { 3772 if (gravity == Gravity.BOTTOM) 3773 voffset = boxht - textht; 3774 else // (gravity == Gravity.CENTER_VERTICAL) 3775 voffset = (boxht - textht) >> 1; 3776 } 3777 } 3778 return voffset; 3779 } 3780 3781 private int getBottomVerticalOffset(boolean forceNormal) { 3782 int voffset = 0; 3783 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3784 3785 Layout l = mLayout; 3786 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3787 l = mHintLayout; 3788 } 3789 3790 if (gravity != Gravity.BOTTOM) { 3791 int boxht; 3792 3793 if (l == mHintLayout) { 3794 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3795 getCompoundPaddingBottom(); 3796 } else { 3797 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3798 getExtendedPaddingBottom(); 3799 } 3800 int textht = l.getHeight(); 3801 3802 if (textht < boxht) { 3803 if (gravity == Gravity.TOP) 3804 voffset = boxht - textht; 3805 else // (gravity == Gravity.CENTER_VERTICAL) 3806 voffset = (boxht - textht) >> 1; 3807 } 3808 } 3809 return voffset; 3810 } 3811 3812 private void invalidateCursorPath() { 3813 if (mHighlightPathBogus) { 3814 invalidateCursor(); 3815 } else { 3816 final int horizontalPadding = getCompoundPaddingLeft(); 3817 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 3818 3819 if (mCursorCount == 0) { 3820 synchronized (sTempRect) { 3821 /* 3822 * The reason for this concern about the thickness of the 3823 * cursor and doing the floor/ceil on the coordinates is that 3824 * some EditTexts (notably textfields in the Browser) have 3825 * anti-aliased text where not all the characters are 3826 * necessarily at integer-multiple locations. This should 3827 * make sure the entire cursor gets invalidated instead of 3828 * sometimes missing half a pixel. 3829 */ 3830 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 3831 if (thick < 1.0f) { 3832 thick = 1.0f; 3833 } 3834 3835 thick /= 2.0f; 3836 3837 mHighlightPath.computeBounds(sTempRect, false); 3838 3839 invalidate((int) FloatMath.floor(horizontalPadding + sTempRect.left - thick), 3840 (int) FloatMath.floor(verticalPadding + sTempRect.top - thick), 3841 (int) FloatMath.ceil(horizontalPadding + sTempRect.right + thick), 3842 (int) FloatMath.ceil(verticalPadding + sTempRect.bottom + thick)); 3843 } 3844 } else { 3845 for (int i = 0; i < mCursorCount; i++) { 3846 Rect bounds = mCursorDrawable[i].getBounds(); 3847 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 3848 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 3849 } 3850 } 3851 } 3852 } 3853 3854 private void invalidateCursor() { 3855 int where = getSelectionEnd(); 3856 3857 invalidateCursor(where, where, where); 3858 } 3859 3860 private void invalidateCursor(int a, int b, int c) { 3861 if (mLayout == null) { 3862 invalidate(); 3863 } else { 3864 if (a >= 0 || b >= 0 || c >= 0) { 3865 int first = Math.min(Math.min(a, b), c); 3866 int last = Math.max(Math.max(a, b), c); 3867 3868 int line = mLayout.getLineForOffset(first); 3869 int top = mLayout.getLineTop(line); 3870 3871 // This is ridiculous, but the descent from the line above 3872 // can hang down into the line we really want to redraw, 3873 // so we have to invalidate part of the line above to make 3874 // sure everything that needs to be redrawn really is. 3875 // (But not the whole line above, because that would cause 3876 // the same problem with the descenders on the line above it!) 3877 if (line > 0) { 3878 top -= mLayout.getLineDescent(line - 1); 3879 } 3880 3881 int line2; 3882 3883 if (first == last) 3884 line2 = line; 3885 else 3886 line2 = mLayout.getLineForOffset(last); 3887 3888 int bottom = mLayout.getLineTop(line2 + 1); 3889 3890 final int horizontalPadding = getCompoundPaddingLeft(); 3891 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 3892 3893 // If used, the cursor drawables can have an arbitrary dimension that can go beyond 3894 // the invalidated lines specified above. 3895 for (int i = 0; i < mCursorCount; i++) { 3896 Rect bounds = mCursorDrawable[i].getBounds(); 3897 top = Math.min(top, bounds.top); 3898 bottom = Math.max(bottom, bounds.bottom); 3899 // Horizontal bounds are already full width, no need to update 3900 } 3901 3902 invalidate(horizontalPadding + mScrollX, top + verticalPadding, 3903 horizontalPadding + mScrollX + getWidth() - 3904 getCompoundPaddingLeft() - getCompoundPaddingRight(), 3905 bottom + verticalPadding); 3906 } 3907 } 3908 } 3909 3910 private void registerForPreDraw() { 3911 final ViewTreeObserver observer = getViewTreeObserver(); 3912 3913 if (mPreDrawState == PREDRAW_NOT_REGISTERED) { 3914 observer.addOnPreDrawListener(this); 3915 mPreDrawState = PREDRAW_PENDING; 3916 } else if (mPreDrawState == PREDRAW_DONE) { 3917 mPreDrawState = PREDRAW_PENDING; 3918 } 3919 3920 // else state is PREDRAW_PENDING, so keep waiting. 3921 } 3922 3923 /** 3924 * {@inheritDoc} 3925 */ 3926 public boolean onPreDraw() { 3927 if (mPreDrawState != PREDRAW_PENDING) { 3928 return true; 3929 } 3930 3931 if (mLayout == null) { 3932 assumeLayout(); 3933 } 3934 3935 boolean changed = false; 3936 3937 if (mMovement != null) { 3938 /* This code also provides auto-scrolling when a cursor is moved using a 3939 * CursorController (insertion point or selection limits). 3940 * For selection, ensure start or end is visible depending on controller's state. 3941 */ 3942 int curs = getSelectionEnd(); 3943 // Do not create the controller if it is not already created. 3944 if (mSelectionModifierCursorController != null && 3945 mSelectionModifierCursorController.isSelectionStartDragged()) { 3946 curs = getSelectionStart(); 3947 } 3948 3949 /* 3950 * TODO: This should really only keep the end in view if 3951 * it already was before the text changed. I'm not sure 3952 * of a good way to tell from here if it was. 3953 */ 3954 if (curs < 0 && 3955 (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 3956 curs = mText.length(); 3957 } 3958 3959 if (curs >= 0) { 3960 changed = bringPointIntoView(curs); 3961 } 3962 } else { 3963 changed = bringTextIntoView(); 3964 } 3965 3966 // This has to be checked here since: 3967 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 3968 // a screen rotation) since layout is not yet initialized at that point. 3969 if (mCreatedWithASelection) { 3970 startSelectionActionMode(); 3971 mCreatedWithASelection = false; 3972 } 3973 3974 // Phone specific code (there is no ExtractEditText on tablets). 3975 // ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can 3976 // not be set. Do the test here instead. 3977 if (this instanceof ExtractEditText && hasSelection()) { 3978 startSelectionActionMode(); 3979 } 3980 3981 mPreDrawState = PREDRAW_DONE; 3982 return !changed; 3983 } 3984 3985 @Override 3986 protected void onAttachedToWindow() { 3987 super.onAttachedToWindow(); 3988 3989 mTemporaryDetach = false; 3990 3991 if (mShowErrorAfterAttach) { 3992 showError(); 3993 mShowErrorAfterAttach = false; 3994 } 3995 3996 final ViewTreeObserver observer = getViewTreeObserver(); 3997 // No need to create the controller. 3998 // The get method will add the listener on controller creation. 3999 if (mInsertionPointCursorController != null) { 4000 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 4001 } 4002 if (mSelectionModifierCursorController != null) { 4003 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 4004 } 4005 } 4006 4007 @Override 4008 protected void onDetachedFromWindow() { 4009 super.onDetachedFromWindow(); 4010 4011 final ViewTreeObserver observer = getViewTreeObserver(); 4012 if (mPreDrawState != PREDRAW_NOT_REGISTERED) { 4013 observer.removeOnPreDrawListener(this); 4014 mPreDrawState = PREDRAW_NOT_REGISTERED; 4015 } 4016 4017 if (mError != null) { 4018 hideError(); 4019 } 4020 4021 if (mBlink != null) { 4022 mBlink.removeCallbacks(mBlink); 4023 } 4024 4025 if (mInsertionPointCursorController != null) { 4026 mInsertionPointCursorController.onDetached(); 4027 } 4028 4029 if (mSelectionModifierCursorController != null) { 4030 mSelectionModifierCursorController.onDetached(); 4031 } 4032 4033 hideControllers(); 4034 } 4035 4036 @Override 4037 protected boolean isPaddingOffsetRequired() { 4038 return mShadowRadius != 0 || mDrawables != null; 4039 } 4040 4041 @Override 4042 protected int getLeftPaddingOffset() { 4043 return getCompoundPaddingLeft() - mPaddingLeft + 4044 (int) Math.min(0, mShadowDx - mShadowRadius); 4045 } 4046 4047 @Override 4048 protected int getTopPaddingOffset() { 4049 return (int) Math.min(0, mShadowDy - mShadowRadius); 4050 } 4051 4052 @Override 4053 protected int getBottomPaddingOffset() { 4054 return (int) Math.max(0, mShadowDy + mShadowRadius); 4055 } 4056 4057 @Override 4058 protected int getRightPaddingOffset() { 4059 return -(getCompoundPaddingRight() - mPaddingRight) + 4060 (int) Math.max(0, mShadowDx + mShadowRadius); 4061 } 4062 4063 @Override 4064 protected boolean verifyDrawable(Drawable who) { 4065 final boolean verified = super.verifyDrawable(who); 4066 if (!verified && mDrawables != null) { 4067 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 4068 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom; 4069 } 4070 return verified; 4071 } 4072 4073 @Override 4074 public void jumpDrawablesToCurrentState() { 4075 super.jumpDrawablesToCurrentState(); 4076 if (mDrawables != null) { 4077 if (mDrawables.mDrawableLeft != null) { 4078 mDrawables.mDrawableLeft.jumpToCurrentState(); 4079 } 4080 if (mDrawables.mDrawableTop != null) { 4081 mDrawables.mDrawableTop.jumpToCurrentState(); 4082 } 4083 if (mDrawables.mDrawableRight != null) { 4084 mDrawables.mDrawableRight.jumpToCurrentState(); 4085 } 4086 if (mDrawables.mDrawableBottom != null) { 4087 mDrawables.mDrawableBottom.jumpToCurrentState(); 4088 } 4089 } 4090 } 4091 4092 @Override 4093 public void invalidateDrawable(Drawable drawable) { 4094 if (verifyDrawable(drawable)) { 4095 final Rect dirty = drawable.getBounds(); 4096 int scrollX = mScrollX; 4097 int scrollY = mScrollY; 4098 4099 // IMPORTANT: The coordinates below are based on the coordinates computed 4100 // for each compound drawable in onDraw(). Make sure to update each section 4101 // accordingly. 4102 final TextView.Drawables drawables = mDrawables; 4103 if (drawables != null) { 4104 if (drawable == drawables.mDrawableLeft) { 4105 final int compoundPaddingTop = getCompoundPaddingTop(); 4106 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4107 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4108 4109 scrollX += mPaddingLeft; 4110 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 4111 } else if (drawable == drawables.mDrawableRight) { 4112 final int compoundPaddingTop = getCompoundPaddingTop(); 4113 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4114 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4115 4116 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 4117 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 4118 } else if (drawable == drawables.mDrawableTop) { 4119 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4120 final int compoundPaddingRight = getCompoundPaddingRight(); 4121 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4122 4123 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 4124 scrollY += mPaddingTop; 4125 } else if (drawable == drawables.mDrawableBottom) { 4126 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4127 final int compoundPaddingRight = getCompoundPaddingRight(); 4128 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4129 4130 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 4131 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 4132 } 4133 } 4134 4135 invalidate(dirty.left + scrollX, dirty.top + scrollY, 4136 dirty.right + scrollX, dirty.bottom + scrollY); 4137 } 4138 } 4139 4140 @Override 4141 protected boolean onSetAlpha(int alpha) { 4142 // Alpha is supported if and only if the drawing can be done in one pass. 4143 // TODO text with spans with a background color currently do not respect this alpha. 4144 if (getBackground() == null) { 4145 mCurrentAlpha = alpha; 4146 final Drawables dr = mDrawables; 4147 if (dr != null) { 4148 if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha); 4149 if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha); 4150 if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha); 4151 if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha); 4152 } 4153 return true; 4154 } 4155 4156 mCurrentAlpha = 255; 4157 return false; 4158 } 4159 4160 /** 4161 * When a TextView is used to display a useful piece of information to the user (such as a 4162 * contact's address), it should be made selectable, so that the user can select and copy this 4163 * content. 4164 * 4165 * Use {@link #setTextIsSelectable(boolean)} or the 4166 * {@link android.R.styleable#TextView_textIsSelectable} XML attribute to make this TextView 4167 * selectable (text is not selectable by default). 4168 * 4169 * Note that the content of an EditText is always selectable. 4170 * 4171 * @return True if the text displayed in this TextView can be selected by the user. 4172 * 4173 * @attr ref android.R.styleable#TextView_textIsSelectable 4174 */ 4175 public boolean isTextSelectable() { 4176 return mTextIsSelectable; 4177 } 4178 4179 /** 4180 * Sets whether or not (default) the content of this view is selectable by the user. 4181 * 4182 * Note that this methods affect the {@link #setFocusable(boolean)}, 4183 * {@link #setFocusableInTouchMode(boolean)} {@link #setClickable(boolean)} and 4184 * {@link #setLongClickable(boolean)} states and you may want to restore these if they were 4185 * customized. 4186 * 4187 * See {@link #isTextSelectable} for details. 4188 * 4189 * @param selectable Whether or not the content of this TextView should be selectable. 4190 */ 4191 public void setTextIsSelectable(boolean selectable) { 4192 if (mTextIsSelectable == selectable) return; 4193 4194 mTextIsSelectable = selectable; 4195 4196 setFocusableInTouchMode(selectable); 4197 setFocusable(selectable); 4198 setClickable(selectable); 4199 setLongClickable(selectable); 4200 4201 // mInputType is already EditorInfo.TYPE_NULL and mInput is null; 4202 4203 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 4204 setText(getText(), selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 4205 4206 // Called by setText above, but safer in case of future code changes 4207 prepareCursorControllers(); 4208 } 4209 4210 @Override 4211 protected int[] onCreateDrawableState(int extraSpace) { 4212 final int[] drawableState; 4213 4214 if (mSingleLine) { 4215 drawableState = super.onCreateDrawableState(extraSpace); 4216 } else { 4217 drawableState = super.onCreateDrawableState(extraSpace + 1); 4218 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 4219 } 4220 4221 if (mTextIsSelectable) { 4222 // Disable pressed state, which was introduced when TextView was made clickable. 4223 // Prevents text color change. 4224 // setClickable(false) would have a similar effect, but it also disables focus changes 4225 // and long press actions, which are both needed by text selection. 4226 final int length = drawableState.length; 4227 for (int i = 0; i < length; i++) { 4228 if (drawableState[i] == R.attr.state_pressed) { 4229 final int[] nonPressedState = new int[length - 1]; 4230 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 4231 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 4232 return nonPressedState; 4233 } 4234 } 4235 } 4236 4237 return drawableState; 4238 } 4239 4240 @Override 4241 protected void onDraw(Canvas canvas) { 4242 if (mPreDrawState == PREDRAW_DONE) { 4243 final ViewTreeObserver observer = getViewTreeObserver(); 4244 observer.removeOnPreDrawListener(this); 4245 mPreDrawState = PREDRAW_NOT_REGISTERED; 4246 } 4247 4248 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return; 4249 4250 restartMarqueeIfNeeded(); 4251 4252 // Draw the background for this view 4253 super.onDraw(canvas); 4254 4255 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4256 final int compoundPaddingTop = getCompoundPaddingTop(); 4257 final int compoundPaddingRight = getCompoundPaddingRight(); 4258 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4259 final int scrollX = mScrollX; 4260 final int scrollY = mScrollY; 4261 final int right = mRight; 4262 final int left = mLeft; 4263 final int bottom = mBottom; 4264 final int top = mTop; 4265 4266 final Drawables dr = mDrawables; 4267 if (dr != null) { 4268 /* 4269 * Compound, not extended, because the icon is not clipped 4270 * if the text height is smaller. 4271 */ 4272 4273 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 4274 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 4275 4276 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4277 // Make sure to update invalidateDrawable() when changing this code. 4278 if (dr.mDrawableLeft != null) { 4279 canvas.save(); 4280 canvas.translate(scrollX + mPaddingLeft, 4281 scrollY + compoundPaddingTop + 4282 (vspace - dr.mDrawableHeightLeft) / 2); 4283 dr.mDrawableLeft.draw(canvas); 4284 canvas.restore(); 4285 } 4286 4287 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4288 // Make sure to update invalidateDrawable() when changing this code. 4289 if (dr.mDrawableRight != null) { 4290 canvas.save(); 4291 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 4292 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 4293 dr.mDrawableRight.draw(canvas); 4294 canvas.restore(); 4295 } 4296 4297 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4298 // Make sure to update invalidateDrawable() when changing this code. 4299 if (dr.mDrawableTop != null) { 4300 canvas.save(); 4301 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 4302 scrollY + mPaddingTop); 4303 dr.mDrawableTop.draw(canvas); 4304 canvas.restore(); 4305 } 4306 4307 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4308 // Make sure to update invalidateDrawable() when changing this code. 4309 if (dr.mDrawableBottom != null) { 4310 canvas.save(); 4311 canvas.translate(scrollX + compoundPaddingLeft + 4312 (hspace - dr.mDrawableWidthBottom) / 2, 4313 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 4314 dr.mDrawableBottom.draw(canvas); 4315 canvas.restore(); 4316 } 4317 } 4318 4319 int color = mCurTextColor; 4320 4321 if (mLayout == null) { 4322 assumeLayout(); 4323 } 4324 4325 Layout layout = mLayout; 4326 int cursorcolor = color; 4327 4328 if (mHint != null && mText.length() == 0) { 4329 if (mHintTextColor != null) { 4330 color = mCurHintTextColor; 4331 } 4332 4333 layout = mHintLayout; 4334 } 4335 4336 mTextPaint.setColor(color); 4337 if (mCurrentAlpha != 255) { 4338 // If set, the alpha will override the color's alpha. Multiply the alphas. 4339 mTextPaint.setAlpha((mCurrentAlpha * Color.alpha(color)) / 255); 4340 } 4341 mTextPaint.drawableState = getDrawableState(); 4342 4343 canvas.save(); 4344 /* Would be faster if we didn't have to do this. Can we chop the 4345 (displayable) text so that we don't need to do this ever? 4346 */ 4347 4348 int extendedPaddingTop = getExtendedPaddingTop(); 4349 int extendedPaddingBottom = getExtendedPaddingBottom(); 4350 4351 float clipLeft = compoundPaddingLeft + scrollX; 4352 float clipTop = extendedPaddingTop + scrollY; 4353 float clipRight = right - left - compoundPaddingRight + scrollX; 4354 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 4355 4356 if (mShadowRadius != 0) { 4357 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4358 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4359 4360 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4361 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4362 } 4363 4364 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4365 4366 int voffsetText = 0; 4367 int voffsetCursor = 0; 4368 4369 // translate in by our padding 4370 { 4371 /* shortcircuit calling getVerticaOffset() */ 4372 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4373 voffsetText = getVerticalOffset(false); 4374 voffsetCursor = getVerticalOffset(true); 4375 } 4376 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4377 } 4378 4379 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4380 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4381 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4382 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4383 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4384 } 4385 4386 if (mMarquee != null && mMarquee.isRunning()) { 4387 canvas.translate(-mMarquee.mScroll, 0.0f); 4388 } 4389 } 4390 4391 Path highlight = null; 4392 int selStart = -1, selEnd = -1; 4393 boolean drawCursor = false; 4394 4395 // If there is no movement method, then there can be no selection. 4396 // Check that first and attempt to skip everything having to do with 4397 // the cursor. 4398 // XXX This is not strictly true -- a program could set the 4399 // selection manually if it really wanted to. 4400 if (mMovement != null && (isFocused() || isPressed())) { 4401 selStart = getSelectionStart(); 4402 selEnd = getSelectionEnd(); 4403 4404 if ((isCursorVisible() || mTextIsSelectable) && selStart >= 0 && isEnabled()) { 4405 if (mHighlightPath == null) 4406 mHighlightPath = new Path(); 4407 4408 if (selStart == selEnd) { 4409 if (!mTextIsSelectable && 4410 (SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 4411 if (mHighlightPathBogus) { 4412 mHighlightPath.reset(); 4413 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4414 updateCursorsPositions(); 4415 mHighlightPathBogus = false; 4416 } 4417 4418 // XXX should pass to skin instead of drawing directly 4419 mHighlightPaint.setColor(cursorcolor); 4420 if (mCurrentAlpha != 255) { 4421 mHighlightPaint.setAlpha( 4422 (mCurrentAlpha * Color.alpha(cursorcolor)) / 255); 4423 } 4424 mHighlightPaint.setStyle(Paint.Style.STROKE); 4425 highlight = mHighlightPath; 4426 drawCursor = mCursorCount > 0; 4427 } 4428 } else { 4429 if (mHighlightPathBogus) { 4430 mHighlightPath.reset(); 4431 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4432 mHighlightPathBogus = false; 4433 } 4434 4435 // XXX should pass to skin instead of drawing directly 4436 mHighlightPaint.setColor(mHighlightColor); 4437 if (mCurrentAlpha != 255) { 4438 mHighlightPaint.setAlpha( 4439 (mCurrentAlpha * Color.alpha(mHighlightColor)) / 255); 4440 } 4441 mHighlightPaint.setStyle(Paint.Style.FILL); 4442 4443 highlight = mHighlightPath; 4444 } 4445 } 4446 } 4447 4448 /* Comment out until we decide what to do about animations 4449 boolean isLinearTextOn = false; 4450 if (currentTransformation != null) { 4451 isLinearTextOn = mTextPaint.isLinearTextOn(); 4452 Matrix m = currentTransformation.getMatrix(); 4453 if (!m.isIdentity()) { 4454 // mTextPaint.setLinearTextOn(true); 4455 } 4456 } 4457 */ 4458 4459 final InputMethodState ims = mInputMethodState; 4460 final int cursorOffsetVertical = voffsetCursor - voffsetText; 4461 if (ims != null && ims.mBatchEditNesting == 0) { 4462 InputMethodManager imm = InputMethodManager.peekInstance(); 4463 if (imm != null) { 4464 if (imm.isActive(this)) { 4465 boolean reported = false; 4466 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4467 // We are in extract mode and the content has changed 4468 // in some way... just report complete new text to the 4469 // input method. 4470 reported = reportExtractedText(); 4471 } 4472 if (!reported && highlight != null) { 4473 int candStart = -1; 4474 int candEnd = -1; 4475 if (mText instanceof Spannable) { 4476 Spannable sp = (Spannable)mText; 4477 candStart = EditableInputConnection.getComposingSpanStart(sp); 4478 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 4479 } 4480 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 4481 } 4482 } 4483 4484 if (imm.isWatchingCursor(this) && highlight != null) { 4485 highlight.computeBounds(ims.mTmpRectF, true); 4486 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 4487 4488 canvas.getMatrix().mapPoints(ims.mTmpOffset); 4489 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 4490 4491 ims.mTmpRectF.offset(0, cursorOffsetVertical); 4492 4493 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 4494 (int)(ims.mTmpRectF.top + 0.5), 4495 (int)(ims.mTmpRectF.right + 0.5), 4496 (int)(ims.mTmpRectF.bottom + 0.5)); 4497 4498 imm.updateCursor(this, 4499 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 4500 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 4501 } 4502 } 4503 } 4504 4505 if (mCorrectionHighlighter != null) { 4506 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 4507 } 4508 4509 if (drawCursor) { 4510 drawCursor(canvas, cursorOffsetVertical); 4511 // Rely on the drawable entirely, do not draw the cursor line. 4512 // Has to be done after the IMM related code above which relies on the highlight. 4513 highlight = null; 4514 } 4515 4516 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4517 4518 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 4519 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 4520 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4521 } 4522 4523 /* Comment out until we decide what to do about animations 4524 if (currentTransformation != null) { 4525 mTextPaint.setLinearTextOn(isLinearTextOn); 4526 } 4527 */ 4528 4529 canvas.restore(); 4530 } 4531 4532 private void updateCursorsPositions() { 4533 if (mCursorDrawableRes == 0) { 4534 mCursorCount = 0; 4535 return; 4536 } 4537 4538 final int offset = getSelectionStart(); 4539 final int line = mLayout.getLineForOffset(offset); 4540 final int top = mLayout.getLineTop(line); 4541 final int bottom = mLayout.getLineTop(line + 1); 4542 4543 mCursorCount = mLayout.isLevelBoundary(offset) ? 2 : 1; 4544 4545 int middle = bottom; 4546 if (mCursorCount == 2) { 4547 // Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)} 4548 middle = (top + bottom) >> 1; 4549 } 4550 4551 updateCursorPosition(0, top, middle, mLayout.getPrimaryHorizontal(offset)); 4552 4553 if (mCursorCount == 2) { 4554 updateCursorPosition(1, middle, bottom, mLayout.getSecondaryHorizontal(offset)); 4555 } 4556 } 4557 4558 private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) { 4559 if (mCursorDrawable[cursorIndex] == null) 4560 mCursorDrawable[cursorIndex] = mContext.getResources().getDrawable(mCursorDrawableRes); 4561 4562 if (mTempRect == null) mTempRect = new Rect(); 4563 4564 mCursorDrawable[cursorIndex].getPadding(mTempRect); 4565 final int width = mCursorDrawable[cursorIndex].getIntrinsicWidth(); 4566 horizontal = Math.max(0.5f, horizontal - 0.5f); 4567 final int left = (int) (horizontal) - mTempRect.left; 4568 mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width, 4569 bottom + mTempRect.bottom); 4570 } 4571 4572 private void drawCursor(Canvas canvas, int cursorOffsetVertical) { 4573 final boolean translate = cursorOffsetVertical != 0; 4574 if (translate) canvas.translate(0, cursorOffsetVertical); 4575 for (int i = 0; i < mCursorCount; i++) { 4576 mCursorDrawable[i].draw(canvas); 4577 } 4578 if (translate) canvas.translate(0, -cursorOffsetVertical); 4579 } 4580 4581 @Override 4582 public void getFocusedRect(Rect r) { 4583 if (mLayout == null) { 4584 super.getFocusedRect(r); 4585 return; 4586 } 4587 4588 int sel = getSelectionEnd(); 4589 if (sel < 0) { 4590 super.getFocusedRect(r); 4591 return; 4592 } 4593 4594 int line = mLayout.getLineForOffset(sel); 4595 r.top = mLayout.getLineTop(line); 4596 r.bottom = mLayout.getLineBottom(line); 4597 4598 r.left = (int) mLayout.getPrimaryHorizontal(sel); 4599 r.right = r.left + 1; 4600 4601 // Adjust for padding and gravity. 4602 int paddingLeft = getCompoundPaddingLeft(); 4603 int paddingTop = getExtendedPaddingTop(); 4604 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4605 paddingTop += getVerticalOffset(false); 4606 } 4607 r.offset(paddingLeft, paddingTop); 4608 } 4609 4610 /** 4611 * Return the number of lines of text, or 0 if the internal Layout has not 4612 * been built. 4613 */ 4614 public int getLineCount() { 4615 return mLayout != null ? mLayout.getLineCount() : 0; 4616 } 4617 4618 /** 4619 * Return the baseline for the specified line (0...getLineCount() - 1) 4620 * If bounds is not null, return the top, left, right, bottom extents 4621 * of the specified line in it. If the internal Layout has not been built, 4622 * return 0 and set bounds to (0, 0, 0, 0) 4623 * @param line which line to examine (0..getLineCount() - 1) 4624 * @param bounds Optional. If not null, it returns the extent of the line 4625 * @return the Y-coordinate of the baseline 4626 */ 4627 public int getLineBounds(int line, Rect bounds) { 4628 if (mLayout == null) { 4629 if (bounds != null) { 4630 bounds.set(0, 0, 0, 0); 4631 } 4632 return 0; 4633 } 4634 else { 4635 int baseline = mLayout.getLineBounds(line, bounds); 4636 4637 int voffset = getExtendedPaddingTop(); 4638 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4639 voffset += getVerticalOffset(true); 4640 } 4641 if (bounds != null) { 4642 bounds.offset(getCompoundPaddingLeft(), voffset); 4643 } 4644 return baseline + voffset; 4645 } 4646 } 4647 4648 @Override 4649 public int getBaseline() { 4650 if (mLayout == null) { 4651 return super.getBaseline(); 4652 } 4653 4654 int voffset = 0; 4655 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4656 voffset = getVerticalOffset(true); 4657 } 4658 4659 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 4660 } 4661 4662 @Override 4663 public boolean onKeyDown(int keyCode, KeyEvent event) { 4664 int which = doKeyDown(keyCode, event, null); 4665 if (which == 0) { 4666 // Go through default dispatching. 4667 return super.onKeyDown(keyCode, event); 4668 } 4669 4670 return true; 4671 } 4672 4673 @Override 4674 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 4675 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 4676 4677 int which = doKeyDown(keyCode, down, event); 4678 if (which == 0) { 4679 // Go through default dispatching. 4680 return super.onKeyMultiple(keyCode, repeatCount, event); 4681 } 4682 if (which == -1) { 4683 // Consumed the whole thing. 4684 return true; 4685 } 4686 4687 repeatCount--; 4688 4689 // We are going to dispatch the remaining events to either the input 4690 // or movement method. To do this, we will just send a repeated stream 4691 // of down and up events until we have done the complete repeatCount. 4692 // It would be nice if those interfaces had an onKeyMultiple() method, 4693 // but adding that is a more complicated change. 4694 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 4695 if (which == 1) { 4696 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4697 while (--repeatCount > 0) { 4698 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 4699 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4700 } 4701 hideErrorIfUnchanged(); 4702 4703 } else if (which == 2) { 4704 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4705 while (--repeatCount > 0) { 4706 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 4707 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4708 } 4709 } 4710 4711 return true; 4712 } 4713 4714 /** 4715 * Returns true if pressing ENTER in this field advances focus instead 4716 * of inserting the character. This is true mostly in single-line fields, 4717 * but also in mail addresses and subjects which will display on multiple 4718 * lines but where it doesn't make sense to insert newlines. 4719 */ 4720 private boolean shouldAdvanceFocusOnEnter() { 4721 if (mInput == null) { 4722 return false; 4723 } 4724 4725 if (mSingleLine) { 4726 return true; 4727 } 4728 4729 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4730 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4731 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 4732 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 4733 return true; 4734 } 4735 } 4736 4737 return false; 4738 } 4739 4740 /** 4741 * Returns true if pressing TAB in this field advances focus instead 4742 * of inserting the character. Insert tabs only in multi-line editors. 4743 */ 4744 private boolean shouldAdvanceFocusOnTab() { 4745 if (mInput != null && !mSingleLine) { 4746 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4747 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4748 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 4749 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 4750 return false; 4751 } 4752 } 4753 } 4754 return true; 4755 } 4756 4757 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 4758 if (!isEnabled()) { 4759 return 0; 4760 } 4761 4762 switch (keyCode) { 4763 case KeyEvent.KEYCODE_ENTER: 4764 mEnterKeyIsDown = true; 4765 if (event.hasNoModifiers()) { 4766 // When mInputContentType is set, we know that we are 4767 // running in a "modern" cupcake environment, so don't need 4768 // to worry about the application trying to capture 4769 // enter key events. 4770 if (mInputContentType != null) { 4771 // If there is an action listener, given them a 4772 // chance to consume the event. 4773 if (mInputContentType.onEditorActionListener != null && 4774 mInputContentType.onEditorActionListener.onEditorAction( 4775 this, EditorInfo.IME_NULL, event)) { 4776 mInputContentType.enterDown = true; 4777 // We are consuming the enter key for them. 4778 return -1; 4779 } 4780 } 4781 4782 // If our editor should move focus when enter is pressed, or 4783 // this is a generated event from an IME action button, then 4784 // don't let it be inserted into the text. 4785 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 4786 || shouldAdvanceFocusOnEnter()) { 4787 if (mOnClickListener != null) { 4788 return 0; 4789 } 4790 return -1; 4791 } 4792 } 4793 break; 4794 4795 case KeyEvent.KEYCODE_DPAD_CENTER: 4796 mDPadCenterIsDown = true; 4797 if (event.hasNoModifiers()) { 4798 if (shouldAdvanceFocusOnEnter()) { 4799 return 0; 4800 } 4801 } 4802 break; 4803 4804 case KeyEvent.KEYCODE_TAB: 4805 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 4806 if (shouldAdvanceFocusOnTab()) { 4807 return 0; 4808 } 4809 } 4810 break; 4811 4812 // Has to be done on key down (and not on key up) to correctly be intercepted. 4813 case KeyEvent.KEYCODE_BACK: 4814 if (mSelectionActionMode != null) { 4815 stopSelectionActionMode(); 4816 return -1; 4817 } 4818 break; 4819 } 4820 4821 if (mInput != null) { 4822 resetErrorChangedFlag(); 4823 4824 boolean doDown = true; 4825 if (otherEvent != null) { 4826 try { 4827 beginBatchEdit(); 4828 final boolean handled = mInput.onKeyOther(this, (Editable) mText, otherEvent); 4829 hideErrorIfUnchanged(); 4830 doDown = false; 4831 if (handled) { 4832 return -1; 4833 } 4834 } catch (AbstractMethodError e) { 4835 // onKeyOther was added after 1.0, so if it isn't 4836 // implemented we need to try to dispatch as a regular down. 4837 } finally { 4838 endBatchEdit(); 4839 } 4840 } 4841 4842 if (doDown) { 4843 beginBatchEdit(); 4844 final boolean handled = mInput.onKeyDown(this, (Editable) mText, keyCode, event); 4845 endBatchEdit(); 4846 hideErrorIfUnchanged(); 4847 if (handled) return 1; 4848 } 4849 } 4850 4851 // bug 650865: sometimes we get a key event before a layout. 4852 // don't try to move around if we don't know the layout. 4853 4854 if (mMovement != null && mLayout != null) { 4855 boolean doDown = true; 4856 if (otherEvent != null) { 4857 try { 4858 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 4859 otherEvent); 4860 doDown = false; 4861 if (handled) { 4862 return -1; 4863 } 4864 } catch (AbstractMethodError e) { 4865 // onKeyOther was added after 1.0, so if it isn't 4866 // implemented we need to try to dispatch as a regular down. 4867 } 4868 } 4869 if (doDown) { 4870 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 4871 return 2; 4872 } 4873 } 4874 4875 return 0; 4876 } 4877 4878 /** 4879 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 4880 * can be recorded. 4881 * @hide 4882 */ 4883 public void resetErrorChangedFlag() { 4884 /* 4885 * Keep track of what the error was before doing the input 4886 * so that if an input filter changed the error, we leave 4887 * that error showing. Otherwise, we take down whatever 4888 * error was showing when the user types something. 4889 */ 4890 mErrorWasChanged = false; 4891 } 4892 4893 /** 4894 * @hide 4895 */ 4896 public void hideErrorIfUnchanged() { 4897 if (mError != null && !mErrorWasChanged) { 4898 setError(null, null); 4899 } 4900 } 4901 4902 @Override 4903 public boolean onKeyUp(int keyCode, KeyEvent event) { 4904 if (!isEnabled()) { 4905 return super.onKeyUp(keyCode, event); 4906 } 4907 4908 switch (keyCode) { 4909 case KeyEvent.KEYCODE_DPAD_CENTER: 4910 mDPadCenterIsDown = false; 4911 if (event.hasNoModifiers()) { 4912 /* 4913 * If there is a click listener, just call through to 4914 * super, which will invoke it. 4915 * 4916 * If there isn't a click listener, try to show the soft 4917 * input method. (It will also 4918 * call performClick(), but that won't do anything in 4919 * this case.) 4920 */ 4921 if (mOnClickListener == null) { 4922 if (mMovement != null && mText instanceof Editable 4923 && mLayout != null && onCheckIsTextEditor()) { 4924 InputMethodManager imm = InputMethodManager.peekInstance(); 4925 if (imm != null) imm.showSoftInput(this, 0); 4926 } 4927 } 4928 } 4929 return super.onKeyUp(keyCode, event); 4930 4931 case KeyEvent.KEYCODE_ENTER: 4932 mEnterKeyIsDown = false; 4933 if (event.hasNoModifiers()) { 4934 if (mInputContentType != null 4935 && mInputContentType.onEditorActionListener != null 4936 && mInputContentType.enterDown) { 4937 mInputContentType.enterDown = false; 4938 if (mInputContentType.onEditorActionListener.onEditorAction( 4939 this, EditorInfo.IME_NULL, event)) { 4940 return true; 4941 } 4942 } 4943 4944 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 4945 || shouldAdvanceFocusOnEnter()) { 4946 /* 4947 * If there is a click listener, just call through to 4948 * super, which will invoke it. 4949 * 4950 * If there isn't a click listener, try to advance focus, 4951 * but still call through to super, which will reset the 4952 * pressed state and longpress state. (It will also 4953 * call performClick(), but that won't do anything in 4954 * this case.) 4955 */ 4956 if (mOnClickListener == null) { 4957 View v = focusSearch(FOCUS_DOWN); 4958 4959 if (v != null) { 4960 if (!v.requestFocus(FOCUS_DOWN)) { 4961 throw new IllegalStateException( 4962 "focus search returned a view " + 4963 "that wasn't able to take focus!"); 4964 } 4965 4966 /* 4967 * Return true because we handled the key; super 4968 * will return false because there was no click 4969 * listener. 4970 */ 4971 super.onKeyUp(keyCode, event); 4972 return true; 4973 } else if ((event.getFlags() 4974 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 4975 // No target for next focus, but make sure the IME 4976 // if this came from it. 4977 InputMethodManager imm = InputMethodManager.peekInstance(); 4978 if (imm != null && imm.isActive(this)) { 4979 imm.hideSoftInputFromWindow(getWindowToken(), 0); 4980 } 4981 } 4982 } 4983 } 4984 return super.onKeyUp(keyCode, event); 4985 } 4986 break; 4987 } 4988 4989 if (mInput != null) 4990 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 4991 return true; 4992 4993 if (mMovement != null && mLayout != null) 4994 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 4995 return true; 4996 4997 return super.onKeyUp(keyCode, event); 4998 } 4999 5000 @Override public boolean onCheckIsTextEditor() { 5001 return mInputType != EditorInfo.TYPE_NULL; 5002 } 5003 5004 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5005 if (onCheckIsTextEditor() && isEnabled()) { 5006 if (mInputMethodState == null) { 5007 mInputMethodState = new InputMethodState(); 5008 } 5009 outAttrs.inputType = mInputType; 5010 if (mInputContentType != null) { 5011 outAttrs.imeOptions = mInputContentType.imeOptions; 5012 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 5013 outAttrs.actionLabel = mInputContentType.imeActionLabel; 5014 outAttrs.actionId = mInputContentType.imeActionId; 5015 outAttrs.extras = mInputContentType.extras; 5016 } else { 5017 outAttrs.imeOptions = EditorInfo.IME_NULL; 5018 } 5019 if (focusSearch(FOCUS_DOWN) != null) { 5020 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 5021 } 5022 if (focusSearch(FOCUS_UP) != null) { 5023 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 5024 } 5025 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 5026 == EditorInfo.IME_ACTION_UNSPECIFIED) { 5027 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 5028 // An action has not been set, but the enter key will move to 5029 // the next focus, so set the action to that. 5030 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 5031 } else { 5032 // An action has not been set, and there is no focus to move 5033 // to, so let's just supply a "done" action. 5034 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 5035 } 5036 if (!shouldAdvanceFocusOnEnter()) { 5037 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5038 } 5039 } 5040 if (isMultilineInputType(outAttrs.inputType)) { 5041 // Multi-line text editors should always show an enter key. 5042 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5043 } 5044 outAttrs.hintText = mHint; 5045 if (mText instanceof Editable) { 5046 InputConnection ic = new EditableInputConnection(this); 5047 outAttrs.initialSelStart = getSelectionStart(); 5048 outAttrs.initialSelEnd = getSelectionEnd(); 5049 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 5050 return ic; 5051 } 5052 } 5053 return null; 5054 } 5055 5056 /** 5057 * If this TextView contains editable content, extract a portion of it 5058 * based on the information in <var>request</var> in to <var>outText</var>. 5059 * @return Returns true if the text was successfully extracted, else false. 5060 */ 5061 public boolean extractText(ExtractedTextRequest request, 5062 ExtractedText outText) { 5063 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 5064 EXTRACT_UNKNOWN, outText); 5065 } 5066 5067 static final int EXTRACT_NOTHING = -2; 5068 static final int EXTRACT_UNKNOWN = -1; 5069 5070 boolean extractTextInternal(ExtractedTextRequest request, 5071 int partialStartOffset, int partialEndOffset, int delta, 5072 ExtractedText outText) { 5073 final CharSequence content = mText; 5074 if (content != null) { 5075 if (partialStartOffset != EXTRACT_NOTHING) { 5076 final int N = content.length(); 5077 if (partialStartOffset < 0) { 5078 outText.partialStartOffset = outText.partialEndOffset = -1; 5079 partialStartOffset = 0; 5080 partialEndOffset = N; 5081 } else { 5082 // Now use the delta to determine the actual amount of text 5083 // we need. 5084 partialEndOffset += delta; 5085 // Adjust offsets to ensure we contain full spans. 5086 if (content instanceof Spanned) { 5087 Spanned spanned = (Spanned)content; 5088 Object[] spans = spanned.getSpans(partialStartOffset, 5089 partialEndOffset, ParcelableSpan.class); 5090 int i = spans.length; 5091 while (i > 0) { 5092 i--; 5093 int j = spanned.getSpanStart(spans[i]); 5094 if (j < partialStartOffset) partialStartOffset = j; 5095 j = spanned.getSpanEnd(spans[i]); 5096 if (j > partialEndOffset) partialEndOffset = j; 5097 } 5098 } 5099 outText.partialStartOffset = partialStartOffset; 5100 outText.partialEndOffset = partialEndOffset - delta; 5101 5102 if (partialStartOffset > N) { 5103 partialStartOffset = N; 5104 } else if (partialStartOffset < 0) { 5105 partialStartOffset = 0; 5106 } 5107 if (partialEndOffset > N) { 5108 partialEndOffset = N; 5109 } else if (partialEndOffset < 0) { 5110 partialEndOffset = 0; 5111 } 5112 } 5113 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 5114 outText.text = content.subSequence(partialStartOffset, 5115 partialEndOffset); 5116 } else { 5117 outText.text = TextUtils.substring(content, partialStartOffset, 5118 partialEndOffset); 5119 } 5120 } else { 5121 outText.partialStartOffset = 0; 5122 outText.partialEndOffset = 0; 5123 outText.text = ""; 5124 } 5125 outText.flags = 0; 5126 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 5127 outText.flags |= ExtractedText.FLAG_SELECTING; 5128 } 5129 if (mSingleLine) { 5130 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 5131 } 5132 outText.startOffset = 0; 5133 outText.selectionStart = getSelectionStart(); 5134 outText.selectionEnd = getSelectionEnd(); 5135 return true; 5136 } 5137 return false; 5138 } 5139 5140 boolean reportExtractedText() { 5141 final InputMethodState ims = mInputMethodState; 5142 if (ims != null) { 5143 final boolean contentChanged = ims.mContentChanged; 5144 if (contentChanged || ims.mSelectionModeChanged) { 5145 ims.mContentChanged = false; 5146 ims.mSelectionModeChanged = false; 5147 final ExtractedTextRequest req = mInputMethodState.mExtracting; 5148 if (req != null) { 5149 InputMethodManager imm = InputMethodManager.peekInstance(); 5150 if (imm != null) { 5151 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 5152 + ims.mChangedStart + " end=" + ims.mChangedEnd 5153 + " delta=" + ims.mChangedDelta); 5154 if (ims.mChangedStart < 0 && !contentChanged) { 5155 ims.mChangedStart = EXTRACT_NOTHING; 5156 } 5157 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 5158 ims.mChangedDelta, ims.mTmpExtracted)) { 5159 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 5160 + ims.mTmpExtracted.partialStartOffset 5161 + " end=" + ims.mTmpExtracted.partialEndOffset 5162 + ": " + ims.mTmpExtracted.text); 5163 imm.updateExtractedText(this, req.token, 5164 mInputMethodState.mTmpExtracted); 5165 ims.mChangedStart = EXTRACT_UNKNOWN; 5166 ims.mChangedEnd = EXTRACT_UNKNOWN; 5167 ims.mChangedDelta = 0; 5168 ims.mContentChanged = false; 5169 return true; 5170 } 5171 } 5172 } 5173 } 5174 } 5175 return false; 5176 } 5177 5178 /** 5179 * This is used to remove all style-impacting spans from text before new 5180 * extracted text is being replaced into it, so that we don't have any 5181 * lingering spans applied during the replace. 5182 */ 5183 static void removeParcelableSpans(Spannable spannable, int start, int end) { 5184 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 5185 int i = spans.length; 5186 while (i > 0) { 5187 i--; 5188 spannable.removeSpan(spans[i]); 5189 } 5190 } 5191 5192 /** 5193 * Apply to this text view the given extracted text, as previously 5194 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 5195 */ 5196 public void setExtractedText(ExtractedText text) { 5197 Editable content = getEditableText(); 5198 if (text.text != null) { 5199 if (content == null) { 5200 setText(text.text, TextView.BufferType.EDITABLE); 5201 } else if (text.partialStartOffset < 0) { 5202 removeParcelableSpans(content, 0, content.length()); 5203 content.replace(0, content.length(), text.text); 5204 } else { 5205 final int N = content.length(); 5206 int start = text.partialStartOffset; 5207 if (start > N) start = N; 5208 int end = text.partialEndOffset; 5209 if (end > N) end = N; 5210 removeParcelableSpans(content, start, end); 5211 content.replace(start, end, text.text); 5212 } 5213 } 5214 5215 // Now set the selection position... make sure it is in range, to 5216 // avoid crashes. If this is a partial update, it is possible that 5217 // the underlying text may have changed, causing us problems here. 5218 // Also we just don't want to trust clients to do the right thing. 5219 Spannable sp = (Spannable)getText(); 5220 final int N = sp.length(); 5221 int start = text.selectionStart; 5222 if (start < 0) start = 0; 5223 else if (start > N) start = N; 5224 int end = text.selectionEnd; 5225 if (end < 0) end = 0; 5226 else if (end > N) end = N; 5227 Selection.setSelection(sp, start, end); 5228 5229 // Finally, update the selection mode. 5230 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 5231 MetaKeyKeyListener.startSelecting(this, sp); 5232 } else { 5233 MetaKeyKeyListener.stopSelecting(this, sp); 5234 } 5235 } 5236 5237 /** 5238 * @hide 5239 */ 5240 public void setExtracting(ExtractedTextRequest req) { 5241 if (mInputMethodState != null) { 5242 mInputMethodState.mExtracting = req; 5243 } 5244 // This stops a possible text selection mode. Maybe not intended. 5245 hideControllers(); 5246 } 5247 5248 /** 5249 * Called by the framework in response to a text completion from 5250 * the current input method, provided by it calling 5251 * {@link InputConnection#commitCompletion 5252 * InputConnection.commitCompletion()}. The default implementation does 5253 * nothing; text views that are supporting auto-completion should override 5254 * this to do their desired behavior. 5255 * 5256 * @param text The auto complete text the user has selected. 5257 */ 5258 public void onCommitCompletion(CompletionInfo text) { 5259 // intentionally empty 5260 } 5261 5262 /** 5263 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 5264 * a dictionnary) from the current input method, provided by it calling 5265 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 5266 * implementation flashes the background of the corrected word to provide feedback to the user. 5267 * 5268 * @param info The auto correct info about the text that was corrected. 5269 */ 5270 public void onCommitCorrection(CorrectionInfo info) { 5271 if (mCorrectionHighlighter == null) { 5272 mCorrectionHighlighter = new CorrectionHighlighter(); 5273 } else { 5274 mCorrectionHighlighter.invalidate(false); 5275 } 5276 5277 mCorrectionHighlighter.highlight(info); 5278 } 5279 5280 private class CorrectionHighlighter { 5281 private final Path mPath = new Path(); 5282 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 5283 private int mStart, mEnd; 5284 private long mFadingStartTime; 5285 private final static int FADE_OUT_DURATION = 400; 5286 5287 public CorrectionHighlighter() { 5288 mPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale); 5289 mPaint.setStyle(Paint.Style.FILL); 5290 } 5291 5292 public void highlight(CorrectionInfo info) { 5293 mStart = info.getOffset(); 5294 mEnd = mStart + info.getNewText().length(); 5295 mFadingStartTime = SystemClock.uptimeMillis(); 5296 5297 if (mStart < 0 || mEnd < 0) { 5298 stopAnimation(); 5299 } 5300 } 5301 5302 public void draw(Canvas canvas, int cursorOffsetVertical) { 5303 if (updatePath() && updatePaint()) { 5304 if (cursorOffsetVertical != 0) { 5305 canvas.translate(0, cursorOffsetVertical); 5306 } 5307 5308 canvas.drawPath(mPath, mPaint); 5309 5310 if (cursorOffsetVertical != 0) { 5311 canvas.translate(0, -cursorOffsetVertical); 5312 } 5313 invalidate(true); 5314 } else { 5315 stopAnimation(); 5316 invalidate(false); 5317 } 5318 } 5319 5320 private boolean updatePaint() { 5321 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 5322 if (duration > FADE_OUT_DURATION) return false; 5323 5324 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 5325 final int highlightColorAlpha = Color.alpha(mHighlightColor); 5326 final int color = (mHighlightColor & 0x00FFFFFF) + 5327 ((int) (highlightColorAlpha * coef) << 24); 5328 mPaint.setColor(color); 5329 return true; 5330 } 5331 5332 private boolean updatePath() { 5333 final Layout layout = TextView.this.mLayout; 5334 if (layout == null) return false; 5335 5336 // Update in case text is edited while the animation is run 5337 final int length = mText.length(); 5338 int start = Math.min(length, mStart); 5339 int end = Math.min(length, mEnd); 5340 5341 mPath.reset(); 5342 TextView.this.mLayout.getSelectionPath(start, end, mPath); 5343 return true; 5344 } 5345 5346 private void invalidate(boolean delayed) { 5347 if (TextView.this.mLayout == null) return; 5348 5349 synchronized (sTempRect) { 5350 mPath.computeBounds(sTempRect, false); 5351 5352 int left = getCompoundPaddingLeft(); 5353 int top = getExtendedPaddingTop() + getVerticalOffset(true); 5354 5355 if (delayed) { 5356 TextView.this.postInvalidateDelayed(16, // 60 Hz update 5357 left + (int) sTempRect.left, top + (int) sTempRect.top, 5358 left + (int) sTempRect.right, top + (int) sTempRect.bottom); 5359 } else { 5360 TextView.this.postInvalidate((int) sTempRect.left, (int) sTempRect.top, 5361 (int) sTempRect.right, (int) sTempRect.bottom); 5362 } 5363 } 5364 } 5365 5366 private void stopAnimation() { 5367 TextView.this.mCorrectionHighlighter = null; 5368 } 5369 } 5370 5371 public void beginBatchEdit() { 5372 mInBatchEditControllers = true; 5373 final InputMethodState ims = mInputMethodState; 5374 if (ims != null) { 5375 int nesting = ++ims.mBatchEditNesting; 5376 if (nesting == 1) { 5377 ims.mCursorChanged = false; 5378 ims.mChangedDelta = 0; 5379 if (ims.mContentChanged) { 5380 // We already have a pending change from somewhere else, 5381 // so turn this into a full update. 5382 ims.mChangedStart = 0; 5383 ims.mChangedEnd = mText.length(); 5384 } else { 5385 ims.mChangedStart = EXTRACT_UNKNOWN; 5386 ims.mChangedEnd = EXTRACT_UNKNOWN; 5387 ims.mContentChanged = false; 5388 } 5389 onBeginBatchEdit(); 5390 } 5391 } 5392 } 5393 5394 public void endBatchEdit() { 5395 mInBatchEditControllers = false; 5396 final InputMethodState ims = mInputMethodState; 5397 if (ims != null) { 5398 int nesting = --ims.mBatchEditNesting; 5399 if (nesting == 0) { 5400 finishBatchEdit(ims); 5401 } 5402 } 5403 } 5404 5405 void ensureEndedBatchEdit() { 5406 final InputMethodState ims = mInputMethodState; 5407 if (ims != null && ims.mBatchEditNesting != 0) { 5408 ims.mBatchEditNesting = 0; 5409 finishBatchEdit(ims); 5410 } 5411 } 5412 5413 void finishBatchEdit(final InputMethodState ims) { 5414 onEndBatchEdit(); 5415 5416 if (ims.mContentChanged || ims.mSelectionModeChanged) { 5417 updateAfterEdit(); 5418 reportExtractedText(); 5419 } else if (ims.mCursorChanged) { 5420 // Cheezy way to get us to report the current cursor location. 5421 invalidateCursor(); 5422 } 5423 } 5424 5425 void updateAfterEdit() { 5426 invalidate(); 5427 int curs = getSelectionStart(); 5428 5429 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5430 registerForPreDraw(); 5431 } 5432 5433 if (curs >= 0) { 5434 mHighlightPathBogus = true; 5435 makeBlink(); 5436 } 5437 5438 checkForResize(); 5439 } 5440 5441 /** 5442 * Called by the framework in response to a request to begin a batch 5443 * of edit operations through a call to link {@link #beginBatchEdit()}. 5444 */ 5445 public void onBeginBatchEdit() { 5446 // intentionally empty 5447 } 5448 5449 /** 5450 * Called by the framework in response to a request to end a batch 5451 * of edit operations through a call to link {@link #endBatchEdit}. 5452 */ 5453 public void onEndBatchEdit() { 5454 // intentionally empty 5455 } 5456 5457 /** 5458 * Called by the framework in response to a private command from the 5459 * current method, provided by it calling 5460 * {@link InputConnection#performPrivateCommand 5461 * InputConnection.performPrivateCommand()}. 5462 * 5463 * @param action The action name of the command. 5464 * @param data Any additional data for the command. This may be null. 5465 * @return Return true if you handled the command, else false. 5466 */ 5467 public boolean onPrivateIMECommand(String action, Bundle data) { 5468 return false; 5469 } 5470 5471 private void nullLayouts() { 5472 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 5473 mSavedLayout = (BoringLayout) mLayout; 5474 } 5475 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 5476 mSavedHintLayout = (BoringLayout) mHintLayout; 5477 } 5478 5479 mLayout = mHintLayout = null; 5480 5481 // Since it depends on the value of mLayout 5482 prepareCursorControllers(); 5483 } 5484 5485 /** 5486 * Make a new Layout based on the already-measured size of the view, 5487 * on the assumption that it was measured correctly at some point. 5488 */ 5489 private void assumeLayout() { 5490 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5491 5492 if (width < 1) { 5493 width = 0; 5494 } 5495 5496 int physicalWidth = width; 5497 5498 if (mHorizontallyScrolling) { 5499 width = VERY_WIDE; 5500 } 5501 5502 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 5503 physicalWidth, false); 5504 } 5505 5506 /** 5507 * The width passed in is now the desired layout width, 5508 * not the full view width with padding. 5509 * {@hide} 5510 */ 5511 protected void makeNewLayout(int w, int hintWidth, 5512 BoringLayout.Metrics boring, 5513 BoringLayout.Metrics hintBoring, 5514 int ellipsisWidth, boolean bringIntoView) { 5515 stopMarquee(); 5516 5517 mHighlightPathBogus = true; 5518 5519 if (w < 0) { 5520 w = 0; 5521 } 5522 if (hintWidth < 0) { 5523 hintWidth = 0; 5524 } 5525 5526 Layout.Alignment alignment; 5527 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 5528 case Gravity.CENTER_HORIZONTAL: 5529 alignment = Layout.Alignment.ALIGN_CENTER; 5530 break; 5531 5532 case Gravity.RIGHT: 5533 // Note, Layout resolves ALIGN_OPPOSITE to left or 5534 // right based on the paragraph direction. 5535 alignment = Layout.Alignment.ALIGN_OPPOSITE; 5536 break; 5537 5538 default: 5539 alignment = Layout.Alignment.ALIGN_NORMAL; 5540 } 5541 5542 boolean shouldEllipsize = mEllipsize != null && mInput == null; 5543 5544 if (mText instanceof Spannable) { 5545 mLayout = new DynamicLayout(mText, mTransformed, mTextPaint, w, 5546 alignment, mSpacingMult, 5547 mSpacingAdd, mIncludePad, mInput == null ? mEllipsize : null, 5548 ellipsisWidth); 5549 } else { 5550 if (boring == UNKNOWN_BORING) { 5551 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mBoring); 5552 if (boring != null) { 5553 mBoring = boring; 5554 } 5555 } 5556 5557 if (boring != null) { 5558 if (boring.width <= w && 5559 (mEllipsize == null || boring.width <= ellipsisWidth)) { 5560 if (mSavedLayout != null) { 5561 mLayout = mSavedLayout. 5562 replaceOrMake(mTransformed, mTextPaint, 5563 w, alignment, mSpacingMult, mSpacingAdd, 5564 boring, mIncludePad); 5565 } else { 5566 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5567 w, alignment, mSpacingMult, mSpacingAdd, 5568 boring, mIncludePad); 5569 } 5570 5571 mSavedLayout = (BoringLayout) mLayout; 5572 } else if (shouldEllipsize && boring.width <= w) { 5573 if (mSavedLayout != null) { 5574 mLayout = mSavedLayout. 5575 replaceOrMake(mTransformed, mTextPaint, 5576 w, alignment, mSpacingMult, mSpacingAdd, 5577 boring, mIncludePad, mEllipsize, 5578 ellipsisWidth); 5579 } else { 5580 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5581 w, alignment, mSpacingMult, mSpacingAdd, 5582 boring, mIncludePad, mEllipsize, 5583 ellipsisWidth); 5584 } 5585 } else if (shouldEllipsize) { 5586 mLayout = new StaticLayout(mTransformed, 5587 0, mTransformed.length(), 5588 mTextPaint, w, alignment, mSpacingMult, 5589 mSpacingAdd, mIncludePad, mEllipsize, 5590 ellipsisWidth); 5591 } else { 5592 mLayout = new StaticLayout(mTransformed, mTextPaint, 5593 w, alignment, mSpacingMult, mSpacingAdd, 5594 mIncludePad); 5595 } 5596 } else if (shouldEllipsize) { 5597 mLayout = new StaticLayout(mTransformed, 5598 0, mTransformed.length(), 5599 mTextPaint, w, alignment, mSpacingMult, 5600 mSpacingAdd, mIncludePad, mEllipsize, 5601 ellipsisWidth); 5602 } else { 5603 mLayout = new StaticLayout(mTransformed, mTextPaint, 5604 w, alignment, mSpacingMult, mSpacingAdd, 5605 mIncludePad); 5606 } 5607 } 5608 5609 shouldEllipsize = mEllipsize != null; 5610 mHintLayout = null; 5611 5612 if (mHint != null) { 5613 if (shouldEllipsize) hintWidth = w; 5614 5615 if (hintBoring == UNKNOWN_BORING) { 5616 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, 5617 mHintBoring); 5618 if (hintBoring != null) { 5619 mHintBoring = hintBoring; 5620 } 5621 } 5622 5623 if (hintBoring != null) { 5624 if (hintBoring.width <= hintWidth && 5625 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 5626 if (mSavedHintLayout != null) { 5627 mHintLayout = mSavedHintLayout. 5628 replaceOrMake(mHint, mTextPaint, 5629 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5630 hintBoring, mIncludePad); 5631 } else { 5632 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5633 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5634 hintBoring, mIncludePad); 5635 } 5636 5637 mSavedHintLayout = (BoringLayout) mHintLayout; 5638 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 5639 if (mSavedHintLayout != null) { 5640 mHintLayout = mSavedHintLayout. 5641 replaceOrMake(mHint, mTextPaint, 5642 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5643 hintBoring, mIncludePad, mEllipsize, 5644 ellipsisWidth); 5645 } else { 5646 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5647 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5648 hintBoring, mIncludePad, mEllipsize, 5649 ellipsisWidth); 5650 } 5651 } else if (shouldEllipsize) { 5652 mHintLayout = new StaticLayout(mHint, 5653 0, mHint.length(), 5654 mTextPaint, hintWidth, alignment, mSpacingMult, 5655 mSpacingAdd, mIncludePad, mEllipsize, 5656 ellipsisWidth); 5657 } else { 5658 mHintLayout = new StaticLayout(mHint, mTextPaint, 5659 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5660 mIncludePad); 5661 } 5662 } else if (shouldEllipsize) { 5663 mHintLayout = new StaticLayout(mHint, 5664 0, mHint.length(), 5665 mTextPaint, hintWidth, alignment, mSpacingMult, 5666 mSpacingAdd, mIncludePad, mEllipsize, 5667 ellipsisWidth); 5668 } else { 5669 mHintLayout = new StaticLayout(mHint, mTextPaint, 5670 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5671 mIncludePad); 5672 } 5673 } 5674 5675 if (bringIntoView) { 5676 registerForPreDraw(); 5677 } 5678 5679 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 5680 if (!compressText(ellipsisWidth)) { 5681 final int height = mLayoutParams.height; 5682 // If the size of the view does not depend on the size of the text, try to 5683 // start the marquee immediately 5684 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 5685 startMarquee(); 5686 } else { 5687 // Defer the start of the marquee until we know our width (see setFrame()) 5688 mRestartMarquee = true; 5689 } 5690 } 5691 } 5692 5693 // CursorControllers need a non-null mLayout 5694 prepareCursorControllers(); 5695 } 5696 5697 private boolean compressText(float width) { 5698 if (isHardwareAccelerated()) return false; 5699 5700 // Only compress the text if it hasn't been compressed by the previous pass 5701 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 5702 mTextPaint.getTextScaleX() == 1.0f) { 5703 final float textWidth = mLayout.getLineWidth(0); 5704 final float overflow = (textWidth + 1.0f - width) / width; 5705 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 5706 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 5707 post(new Runnable() { 5708 public void run() { 5709 requestLayout(); 5710 } 5711 }); 5712 return true; 5713 } 5714 } 5715 5716 return false; 5717 } 5718 5719 private static int desired(Layout layout) { 5720 int n = layout.getLineCount(); 5721 CharSequence text = layout.getText(); 5722 float max = 0; 5723 5724 // if any line was wrapped, we can't use it. 5725 // but it's ok for the last line not to have a newline 5726 5727 for (int i = 0; i < n - 1; i++) { 5728 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 5729 return -1; 5730 } 5731 5732 for (int i = 0; i < n; i++) { 5733 max = Math.max(max, layout.getLineWidth(i)); 5734 } 5735 5736 return (int) FloatMath.ceil(max); 5737 } 5738 5739 /** 5740 * Set whether the TextView includes extra top and bottom padding to make 5741 * room for accents that go above the normal ascent and descent. 5742 * The default is true. 5743 * 5744 * @attr ref android.R.styleable#TextView_includeFontPadding 5745 */ 5746 public void setIncludeFontPadding(boolean includepad) { 5747 mIncludePad = includepad; 5748 5749 if (mLayout != null) { 5750 nullLayouts(); 5751 requestLayout(); 5752 invalidate(); 5753 } 5754 } 5755 5756 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 5757 5758 @Override 5759 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 5760 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 5761 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 5762 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 5763 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 5764 5765 int width; 5766 int height; 5767 5768 BoringLayout.Metrics boring = UNKNOWN_BORING; 5769 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 5770 5771 int des = -1; 5772 boolean fromexisting = false; 5773 5774 if (widthMode == MeasureSpec.EXACTLY) { 5775 // Parent has told us how big to be. So be it. 5776 width = widthSize; 5777 } else { 5778 if (mLayout != null && mEllipsize == null) { 5779 des = desired(mLayout); 5780 } 5781 5782 if (des < 0) { 5783 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mBoring); 5784 if (boring != null) { 5785 mBoring = boring; 5786 } 5787 } else { 5788 fromexisting = true; 5789 } 5790 5791 if (boring == null || boring == UNKNOWN_BORING) { 5792 if (des < 0) { 5793 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 5794 } 5795 5796 width = des; 5797 } else { 5798 width = boring.width; 5799 } 5800 5801 final Drawables dr = mDrawables; 5802 if (dr != null) { 5803 width = Math.max(width, dr.mDrawableWidthTop); 5804 width = Math.max(width, dr.mDrawableWidthBottom); 5805 } 5806 5807 if (mHint != null) { 5808 int hintDes = -1; 5809 int hintWidth; 5810 5811 if (mHintLayout != null && mEllipsize == null) { 5812 hintDes = desired(mHintLayout); 5813 } 5814 5815 if (hintDes < 0) { 5816 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 5817 if (hintBoring != null) { 5818 mHintBoring = hintBoring; 5819 } 5820 } 5821 5822 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 5823 if (hintDes < 0) { 5824 hintDes = (int) FloatMath.ceil( 5825 Layout.getDesiredWidth(mHint, mTextPaint)); 5826 } 5827 5828 hintWidth = hintDes; 5829 } else { 5830 hintWidth = hintBoring.width; 5831 } 5832 5833 if (hintWidth > width) { 5834 width = hintWidth; 5835 } 5836 } 5837 5838 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 5839 5840 if (mMaxWidthMode == EMS) { 5841 width = Math.min(width, mMaxWidth * getLineHeight()); 5842 } else { 5843 width = Math.min(width, mMaxWidth); 5844 } 5845 5846 if (mMinWidthMode == EMS) { 5847 width = Math.max(width, mMinWidth * getLineHeight()); 5848 } else { 5849 width = Math.max(width, mMinWidth); 5850 } 5851 5852 // Check against our minimum width 5853 width = Math.max(width, getSuggestedMinimumWidth()); 5854 5855 if (widthMode == MeasureSpec.AT_MOST) { 5856 width = Math.min(widthSize, width); 5857 } 5858 } 5859 5860 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5861 int unpaddedWidth = want; 5862 5863 if (mHorizontallyScrolling) want = VERY_WIDE; 5864 5865 int hintWant = want; 5866 int hintWidth = mHintLayout == null ? hintWant : mHintLayout.getWidth(); 5867 5868 if (mLayout == null) { 5869 makeNewLayout(want, hintWant, boring, hintBoring, 5870 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5871 } else if ((mLayout.getWidth() != want) || (hintWidth != hintWant) || 5872 (mLayout.getEllipsizedWidth() != 5873 width - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 5874 if (mHint == null && mEllipsize == null && 5875 want > mLayout.getWidth() && 5876 (mLayout instanceof BoringLayout || 5877 (fromexisting && des >= 0 && des <= want))) { 5878 mLayout.increaseWidthTo(want); 5879 } else { 5880 makeNewLayout(want, hintWant, boring, hintBoring, 5881 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5882 } 5883 } else { 5884 // Width has not changed. 5885 } 5886 5887 if (heightMode == MeasureSpec.EXACTLY) { 5888 // Parent has told us how big to be. So be it. 5889 height = heightSize; 5890 mDesiredHeightAtMeasure = -1; 5891 } else { 5892 int desired = getDesiredHeight(); 5893 5894 height = desired; 5895 mDesiredHeightAtMeasure = desired; 5896 5897 if (heightMode == MeasureSpec.AT_MOST) { 5898 height = Math.min(desired, heightSize); 5899 } 5900 } 5901 5902 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 5903 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 5904 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 5905 } 5906 5907 /* 5908 * We didn't let makeNewLayout() register to bring the cursor into view, 5909 * so do it here if there is any possibility that it is needed. 5910 */ 5911 if (mMovement != null || 5912 mLayout.getWidth() > unpaddedWidth || 5913 mLayout.getHeight() > unpaddedHeight) { 5914 registerForPreDraw(); 5915 } else { 5916 scrollTo(0, 0); 5917 } 5918 5919 setMeasuredDimension(width, height); 5920 } 5921 5922 private int getDesiredHeight() { 5923 return Math.max( 5924 getDesiredHeight(mLayout, true), 5925 getDesiredHeight(mHintLayout, mEllipsize != null)); 5926 } 5927 5928 private int getDesiredHeight(Layout layout, boolean cap) { 5929 if (layout == null) { 5930 return 0; 5931 } 5932 5933 int linecount = layout.getLineCount(); 5934 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 5935 int desired = layout.getLineTop(linecount); 5936 5937 final Drawables dr = mDrawables; 5938 if (dr != null) { 5939 desired = Math.max(desired, dr.mDrawableHeightLeft); 5940 desired = Math.max(desired, dr.mDrawableHeightRight); 5941 } 5942 5943 desired += pad; 5944 layout.setMaximumVisibleLineCount(0); 5945 5946 if (mMaxMode == LINES) { 5947 /* 5948 * Don't cap the hint to a certain number of lines. 5949 * (Do cap it, though, if we have a maximum pixel height.) 5950 */ 5951 if (cap) { 5952 if (linecount > mMaximum) { 5953 layout.setMaximumVisibleLineCount(mMaximum); 5954 desired = layout.getLineTop(mMaximum); 5955 5956 if (dr != null) { 5957 desired = Math.max(desired, dr.mDrawableHeightLeft); 5958 desired = Math.max(desired, dr.mDrawableHeightRight); 5959 } 5960 5961 desired += pad; 5962 linecount = mMaximum; 5963 } 5964 } 5965 } else { 5966 desired = Math.min(desired, mMaximum); 5967 } 5968 5969 if (mMinMode == LINES) { 5970 if (linecount < mMinimum) { 5971 desired += getLineHeight() * (mMinimum - linecount); 5972 } 5973 } else { 5974 desired = Math.max(desired, mMinimum); 5975 } 5976 5977 // Check against our minimum height 5978 desired = Math.max(desired, getSuggestedMinimumHeight()); 5979 5980 return desired; 5981 } 5982 5983 /** 5984 * Check whether a change to the existing text layout requires a 5985 * new view layout. 5986 */ 5987 private void checkForResize() { 5988 boolean sizeChanged = false; 5989 5990 if (mLayout != null) { 5991 // Check if our width changed 5992 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 5993 sizeChanged = true; 5994 invalidate(); 5995 } 5996 5997 // Check if our height changed 5998 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 5999 int desiredHeight = getDesiredHeight(); 6000 6001 if (desiredHeight != this.getHeight()) { 6002 sizeChanged = true; 6003 } 6004 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 6005 if (mDesiredHeightAtMeasure >= 0) { 6006 int desiredHeight = getDesiredHeight(); 6007 6008 if (desiredHeight != mDesiredHeightAtMeasure) { 6009 sizeChanged = true; 6010 } 6011 } 6012 } 6013 } 6014 6015 if (sizeChanged) { 6016 requestLayout(); 6017 // caller will have already invalidated 6018 } 6019 } 6020 6021 /** 6022 * Check whether entirely new text requires a new view layout 6023 * or merely a new text layout. 6024 */ 6025 private void checkForRelayout() { 6026 // If we have a fixed width, we can just swap in a new text layout 6027 // if the text height stays the same or if the view height is fixed. 6028 6029 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 6030 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 6031 (mHint == null || mHintLayout != null) && 6032 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 6033 // Static width, so try making a new text layout. 6034 6035 int oldht = mLayout.getHeight(); 6036 int want = mLayout.getWidth(); 6037 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 6038 6039 /* 6040 * No need to bring the text into view, since the size is not 6041 * changing (unless we do the requestLayout(), in which case it 6042 * will happen at measure). 6043 */ 6044 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 6045 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 6046 false); 6047 6048 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 6049 // In a fixed-height view, so use our new text layout. 6050 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 6051 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 6052 invalidate(); 6053 return; 6054 } 6055 6056 // Dynamic height, but height has stayed the same, 6057 // so use our new text layout. 6058 if (mLayout.getHeight() == oldht && 6059 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 6060 invalidate(); 6061 return; 6062 } 6063 } 6064 6065 // We lose: the height has changed and we have a dynamic height. 6066 // Request a new view layout using our new text layout. 6067 requestLayout(); 6068 invalidate(); 6069 } else { 6070 // Dynamic width, so we have no choice but to request a new 6071 // view layout with a new text layout. 6072 6073 nullLayouts(); 6074 requestLayout(); 6075 invalidate(); 6076 } 6077 } 6078 6079 /** 6080 * Returns true if anything changed. 6081 */ 6082 private boolean bringTextIntoView() { 6083 int line = 0; 6084 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6085 line = mLayout.getLineCount() - 1; 6086 } 6087 6088 Layout.Alignment a = mLayout.getParagraphAlignment(line); 6089 int dir = mLayout.getParagraphDirection(line); 6090 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6091 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6092 int ht = mLayout.getHeight(); 6093 6094 int scrollx, scrolly; 6095 6096 if (a == Layout.Alignment.ALIGN_CENTER) { 6097 /* 6098 * Keep centered if possible, or, if it is too wide to fit, 6099 * keep leading edge in view. 6100 */ 6101 6102 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6103 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6104 6105 if (right - left < hspace) { 6106 scrollx = (right + left) / 2 - hspace / 2; 6107 } else { 6108 if (dir < 0) { 6109 scrollx = right - hspace; 6110 } else { 6111 scrollx = left; 6112 } 6113 } 6114 } else if (a == Layout.Alignment.ALIGN_NORMAL) { 6115 /* 6116 * Keep leading edge in view. 6117 */ 6118 6119 if (dir < 0) { 6120 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6121 scrollx = right - hspace; 6122 } else { 6123 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6124 } 6125 } else /* a == Layout.Alignment.ALIGN_OPPOSITE */ { 6126 /* 6127 * Keep trailing edge in view. 6128 */ 6129 6130 if (dir < 0) { 6131 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6132 } else { 6133 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6134 scrollx = right - hspace; 6135 } 6136 } 6137 6138 if (ht < vspace) { 6139 scrolly = 0; 6140 } else { 6141 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6142 scrolly = ht - vspace; 6143 } else { 6144 scrolly = 0; 6145 } 6146 } 6147 6148 if (scrollx != mScrollX || scrolly != mScrollY) { 6149 scrollTo(scrollx, scrolly); 6150 return true; 6151 } else { 6152 return false; 6153 } 6154 } 6155 6156 /** 6157 * Move the point, specified by the offset, into the view if it is needed. 6158 * This has to be called after layout. Returns true if anything changed. 6159 */ 6160 public boolean bringPointIntoView(int offset) { 6161 boolean changed = false; 6162 6163 int line = mLayout.getLineForOffset(offset); 6164 6165 // FIXME: Is it okay to truncate this, or should we round? 6166 final int x = (int)mLayout.getPrimaryHorizontal(offset); 6167 final int top = mLayout.getLineTop(line); 6168 final int bottom = mLayout.getLineTop(line + 1); 6169 6170 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6171 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6172 int ht = mLayout.getHeight(); 6173 6174 int grav; 6175 6176 switch (mLayout.getParagraphAlignment(line)) { 6177 case ALIGN_NORMAL: 6178 grav = 1; 6179 break; 6180 6181 case ALIGN_OPPOSITE: 6182 grav = -1; 6183 break; 6184 6185 default: 6186 grav = 0; 6187 } 6188 6189 grav *= mLayout.getParagraphDirection(line); 6190 6191 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6192 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6193 6194 int hslack = (bottom - top) / 2; 6195 int vslack = hslack; 6196 6197 if (vslack > vspace / 4) 6198 vslack = vspace / 4; 6199 if (hslack > hspace / 4) 6200 hslack = hspace / 4; 6201 6202 int hs = mScrollX; 6203 int vs = mScrollY; 6204 6205 if (top - vs < vslack) 6206 vs = top - vslack; 6207 if (bottom - vs > vspace - vslack) 6208 vs = bottom - (vspace - vslack); 6209 if (ht - vs < vspace) 6210 vs = ht - vspace; 6211 if (0 - vs > 0) 6212 vs = 0; 6213 6214 if (grav != 0) { 6215 if (x - hs < hslack) { 6216 hs = x - hslack; 6217 } 6218 if (x - hs > hspace - hslack) { 6219 hs = x - (hspace - hslack); 6220 } 6221 } 6222 6223 if (grav < 0) { 6224 if (left - hs > 0) 6225 hs = left; 6226 if (right - hs < hspace) 6227 hs = right - hspace; 6228 } else if (grav > 0) { 6229 if (right - hs < hspace) 6230 hs = right - hspace; 6231 if (left - hs > 0) 6232 hs = left; 6233 } else /* grav == 0 */ { 6234 if (right - left <= hspace) { 6235 /* 6236 * If the entire text fits, center it exactly. 6237 */ 6238 hs = left - (hspace - (right - left)) / 2; 6239 } else if (x > right - hslack) { 6240 /* 6241 * If we are near the right edge, keep the right edge 6242 * at the edge of the view. 6243 */ 6244 hs = right - hspace; 6245 } else if (x < left + hslack) { 6246 /* 6247 * If we are near the left edge, keep the left edge 6248 * at the edge of the view. 6249 */ 6250 hs = left; 6251 } else if (left > hs) { 6252 /* 6253 * Is there whitespace visible at the left? Fix it if so. 6254 */ 6255 hs = left; 6256 } else if (right < hs + hspace) { 6257 /* 6258 * Is there whitespace visible at the right? Fix it if so. 6259 */ 6260 hs = right - hspace; 6261 } else { 6262 /* 6263 * Otherwise, float as needed. 6264 */ 6265 if (x - hs < hslack) { 6266 hs = x - hslack; 6267 } 6268 if (x - hs > hspace - hslack) { 6269 hs = x - (hspace - hslack); 6270 } 6271 } 6272 } 6273 6274 if (hs != mScrollX || vs != mScrollY) { 6275 if (mScroller == null) { 6276 scrollTo(hs, vs); 6277 } else { 6278 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 6279 int dx = hs - mScrollX; 6280 int dy = vs - mScrollY; 6281 6282 if (duration > ANIMATED_SCROLL_GAP) { 6283 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 6284 awakenScrollBars(mScroller.getDuration()); 6285 invalidate(); 6286 } else { 6287 if (!mScroller.isFinished()) { 6288 mScroller.abortAnimation(); 6289 } 6290 6291 scrollBy(dx, dy); 6292 } 6293 6294 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 6295 } 6296 6297 changed = true; 6298 } 6299 6300 if (isFocused()) { 6301 // This offsets because getInterestingRect() is in terms of viewport coordinates, but 6302 // requestRectangleOnScreen() is in terms of content coordinates. 6303 6304 if (mTempRect == null) mTempRect = new Rect(); 6305 mTempRect.set(x, top, x + 1, bottom); 6306 getInterestingRect(mTempRect, line); 6307 mTempRect.offset(mScrollX, mScrollY); 6308 6309 if (requestRectangleOnScreen(mTempRect)) { 6310 changed = true; 6311 } 6312 } 6313 6314 return changed; 6315 } 6316 6317 /** 6318 * Move the cursor, if needed, so that it is at an offset that is visible 6319 * to the user. This will not move the cursor if it represents more than 6320 * one character (a selection range). This will only work if the 6321 * TextView contains spannable text; otherwise it will do nothing. 6322 * 6323 * @return True if the cursor was actually moved, false otherwise. 6324 */ 6325 public boolean moveCursorToVisibleOffset() { 6326 if (!(mText instanceof Spannable)) { 6327 return false; 6328 } 6329 int start = getSelectionStart(); 6330 int end = getSelectionEnd(); 6331 if (start != end) { 6332 return false; 6333 } 6334 6335 // First: make sure the line is visible on screen: 6336 6337 int line = mLayout.getLineForOffset(start); 6338 6339 final int top = mLayout.getLineTop(line); 6340 final int bottom = mLayout.getLineTop(line + 1); 6341 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6342 int vslack = (bottom - top) / 2; 6343 if (vslack > vspace / 4) 6344 vslack = vspace / 4; 6345 final int vs = mScrollY; 6346 6347 if (top < (vs+vslack)) { 6348 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 6349 } else if (bottom > (vspace+vs-vslack)) { 6350 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 6351 } 6352 6353 // Next: make sure the character is visible on screen: 6354 6355 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6356 final int hs = mScrollX; 6357 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 6358 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 6359 6360 // line might contain bidirectional text 6361 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 6362 final int highChar = leftChar > rightChar ? leftChar : rightChar; 6363 6364 int newStart = start; 6365 if (newStart < lowChar) { 6366 newStart = lowChar; 6367 } else if (newStart > highChar) { 6368 newStart = highChar; 6369 } 6370 6371 if (newStart != start) { 6372 Selection.setSelection((Spannable)mText, newStart); 6373 return true; 6374 } 6375 6376 return false; 6377 } 6378 6379 @Override 6380 public void computeScroll() { 6381 if (mScroller != null) { 6382 if (mScroller.computeScrollOffset()) { 6383 mScrollX = mScroller.getCurrX(); 6384 mScrollY = mScroller.getCurrY(); 6385 invalidateParentCaches(); 6386 postInvalidate(); // So we draw again 6387 } 6388 } 6389 } 6390 6391 private void getInterestingRect(Rect r, int line) { 6392 convertFromViewportToContentCoordinates(r); 6393 6394 // Rectangle can can be expanded on first and last line to take 6395 // padding into account. 6396 // TODO Take left/right padding into account too? 6397 if (line == 0) r.top -= getExtendedPaddingTop(); 6398 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 6399 } 6400 6401 private void convertFromViewportToContentCoordinates(Rect r) { 6402 final int horizontalOffset = viewportToContentHorizontalOffset(); 6403 r.left += horizontalOffset; 6404 r.right += horizontalOffset; 6405 6406 final int verticalOffset = viewportToContentVerticalOffset(); 6407 r.top += verticalOffset; 6408 r.bottom += verticalOffset; 6409 } 6410 6411 private int viewportToContentHorizontalOffset() { 6412 return getCompoundPaddingLeft() - mScrollX; 6413 } 6414 6415 private int viewportToContentVerticalOffset() { 6416 int offset = getExtendedPaddingTop() - mScrollY; 6417 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 6418 offset += getVerticalOffset(false); 6419 } 6420 return offset; 6421 } 6422 6423 @Override 6424 public void debug(int depth) { 6425 super.debug(depth); 6426 6427 String output = debugIndent(depth); 6428 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 6429 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 6430 + "} "; 6431 6432 if (mText != null) { 6433 6434 output += "mText=\"" + mText + "\" "; 6435 if (mLayout != null) { 6436 output += "mLayout width=" + mLayout.getWidth() 6437 + " height=" + mLayout.getHeight(); 6438 } 6439 } else { 6440 output += "mText=NULL"; 6441 } 6442 Log.d(VIEW_LOG_TAG, output); 6443 } 6444 6445 /** 6446 * Convenience for {@link Selection#getSelectionStart}. 6447 */ 6448 @ViewDebug.ExportedProperty(category = "text") 6449 public int getSelectionStart() { 6450 return Selection.getSelectionStart(getText()); 6451 } 6452 6453 /** 6454 * Convenience for {@link Selection#getSelectionEnd}. 6455 */ 6456 @ViewDebug.ExportedProperty(category = "text") 6457 public int getSelectionEnd() { 6458 return Selection.getSelectionEnd(getText()); 6459 } 6460 6461 /** 6462 * Return true iff there is a selection inside this text view. 6463 */ 6464 public boolean hasSelection() { 6465 final int selectionStart = getSelectionStart(); 6466 final int selectionEnd = getSelectionEnd(); 6467 6468 return selectionStart >= 0 && selectionStart != selectionEnd; 6469 } 6470 6471 /** 6472 * Sets the properties of this field (lines, horizontally scrolling, 6473 * transformation method) to be for a single-line input. 6474 * 6475 * @attr ref android.R.styleable#TextView_singleLine 6476 */ 6477 public void setSingleLine() { 6478 setSingleLine(true); 6479 } 6480 6481 /** 6482 * If true, sets the properties of this field (number of lines, horizontally scrolling, 6483 * transformation method) to be for a single-line input; if false, restores these to the default 6484 * conditions. 6485 * 6486 * Note that the default conditions are not necessarily those that were in effect prior this 6487 * method, and you may want to reset these properties to your custom values. 6488 * 6489 * @attr ref android.R.styleable#TextView_singleLine 6490 */ 6491 @android.view.RemotableViewMethod 6492 public void setSingleLine(boolean singleLine) { 6493 // Could be used, but may break backward compatibility. 6494 // if (mSingleLine == singleLine) return; 6495 setInputTypeSingleLine(singleLine); 6496 applySingleLine(singleLine, true, true); 6497 } 6498 6499 /** 6500 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 6501 * @param singleLine 6502 */ 6503 private void setInputTypeSingleLine(boolean singleLine) { 6504 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 6505 if (singleLine) { 6506 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6507 } else { 6508 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6509 } 6510 } 6511 } 6512 6513 private void applySingleLine(boolean singleLine, boolean applyTransformation, 6514 boolean changeMaxLines) { 6515 mSingleLine = singleLine; 6516 if (singleLine) { 6517 setLines(1); 6518 setHorizontallyScrolling(true); 6519 if (applyTransformation) { 6520 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 6521 } 6522 } else { 6523 if (changeMaxLines) { 6524 setMaxLines(Integer.MAX_VALUE); 6525 } 6526 setHorizontallyScrolling(false); 6527 if (applyTransformation) { 6528 setTransformationMethod(null); 6529 } 6530 } 6531 } 6532 6533 /** 6534 * Causes words in the text that are longer than the view is wide 6535 * to be ellipsized instead of broken in the middle. You may also 6536 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 6537 * to constrain the text to a single line. Use <code>null</code> 6538 * to turn off ellipsizing. 6539 * 6540 * @attr ref android.R.styleable#TextView_ellipsize 6541 */ 6542 public void setEllipsize(TextUtils.TruncateAt where) { 6543 mEllipsize = where; 6544 6545 if (mLayout != null) { 6546 nullLayouts(); 6547 requestLayout(); 6548 invalidate(); 6549 } 6550 } 6551 6552 /** 6553 * Sets how many times to repeat the marquee animation. Only applied if the 6554 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 6555 * 6556 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 6557 */ 6558 public void setMarqueeRepeatLimit(int marqueeLimit) { 6559 mMarqueeRepeatLimit = marqueeLimit; 6560 } 6561 6562 /** 6563 * Returns where, if anywhere, words that are longer than the view 6564 * is wide should be ellipsized. 6565 */ 6566 @ViewDebug.ExportedProperty 6567 public TextUtils.TruncateAt getEllipsize() { 6568 return mEllipsize; 6569 } 6570 6571 /** 6572 * Set the TextView so that when it takes focus, all the text is 6573 * selected. 6574 * 6575 * @attr ref android.R.styleable#TextView_selectAllOnFocus 6576 */ 6577 @android.view.RemotableViewMethod 6578 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 6579 mSelectAllOnFocus = selectAllOnFocus; 6580 6581 if (selectAllOnFocus && !(mText instanceof Spannable)) { 6582 setText(mText, BufferType.SPANNABLE); 6583 } 6584 } 6585 6586 /** 6587 * Set whether the cursor is visible. The default is true. 6588 * 6589 * @attr ref android.R.styleable#TextView_cursorVisible 6590 */ 6591 @android.view.RemotableViewMethod 6592 public void setCursorVisible(boolean visible) { 6593 if (mCursorVisible != visible) { 6594 mCursorVisible = visible; 6595 invalidate(); 6596 6597 makeBlink(); 6598 6599 // InsertionPointCursorController depends on mCursorVisible 6600 prepareCursorControllers(); 6601 } 6602 } 6603 6604 private boolean isCursorVisible() { 6605 return mCursorVisible && isTextEditable(); 6606 } 6607 6608 private boolean canMarquee() { 6609 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6610 return width > 0 && mLayout.getLineWidth(0) > width; 6611 } 6612 6613 private void startMarquee() { 6614 // Do not ellipsize EditText 6615 if (mInput != null) return; 6616 6617 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 6618 return; 6619 } 6620 6621 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 6622 getLineCount() == 1 && canMarquee()) { 6623 6624 if (mMarquee == null) mMarquee = new Marquee(this); 6625 mMarquee.start(mMarqueeRepeatLimit); 6626 } 6627 } 6628 6629 private void stopMarquee() { 6630 if (mMarquee != null && !mMarquee.isStopped()) { 6631 mMarquee.stop(); 6632 } 6633 } 6634 6635 private void startStopMarquee(boolean start) { 6636 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6637 if (start) { 6638 startMarquee(); 6639 } else { 6640 stopMarquee(); 6641 } 6642 } 6643 } 6644 6645 private static final class Marquee extends Handler { 6646 // TODO: Add an option to configure this 6647 private static final float MARQUEE_DELTA_MAX = 0.07f; 6648 private static final int MARQUEE_DELAY = 1200; 6649 private static final int MARQUEE_RESTART_DELAY = 1200; 6650 private static final int MARQUEE_RESOLUTION = 1000 / 30; 6651 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 6652 6653 private static final byte MARQUEE_STOPPED = 0x0; 6654 private static final byte MARQUEE_STARTING = 0x1; 6655 private static final byte MARQUEE_RUNNING = 0x2; 6656 6657 private static final int MESSAGE_START = 0x1; 6658 private static final int MESSAGE_TICK = 0x2; 6659 private static final int MESSAGE_RESTART = 0x3; 6660 6661 private final WeakReference<TextView> mView; 6662 6663 private byte mStatus = MARQUEE_STOPPED; 6664 private final float mScrollUnit; 6665 private float mMaxScroll; 6666 float mMaxFadeScroll; 6667 private float mGhostStart; 6668 private float mGhostOffset; 6669 private float mFadeStop; 6670 private int mRepeatLimit; 6671 6672 float mScroll; 6673 6674 Marquee(TextView v) { 6675 final float density = v.getContext().getResources().getDisplayMetrics().density; 6676 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 6677 mView = new WeakReference<TextView>(v); 6678 } 6679 6680 @Override 6681 public void handleMessage(Message msg) { 6682 switch (msg.what) { 6683 case MESSAGE_START: 6684 mStatus = MARQUEE_RUNNING; 6685 tick(); 6686 break; 6687 case MESSAGE_TICK: 6688 tick(); 6689 break; 6690 case MESSAGE_RESTART: 6691 if (mStatus == MARQUEE_RUNNING) { 6692 if (mRepeatLimit >= 0) { 6693 mRepeatLimit--; 6694 } 6695 start(mRepeatLimit); 6696 } 6697 break; 6698 } 6699 } 6700 6701 void tick() { 6702 if (mStatus != MARQUEE_RUNNING) { 6703 return; 6704 } 6705 6706 removeMessages(MESSAGE_TICK); 6707 6708 final TextView textView = mView.get(); 6709 if (textView != null && (textView.isFocused() || textView.isSelected())) { 6710 mScroll += mScrollUnit; 6711 if (mScroll > mMaxScroll) { 6712 mScroll = mMaxScroll; 6713 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 6714 } else { 6715 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 6716 } 6717 textView.invalidate(); 6718 } 6719 } 6720 6721 void stop() { 6722 mStatus = MARQUEE_STOPPED; 6723 removeMessages(MESSAGE_START); 6724 removeMessages(MESSAGE_RESTART); 6725 removeMessages(MESSAGE_TICK); 6726 resetScroll(); 6727 } 6728 6729 private void resetScroll() { 6730 mScroll = 0.0f; 6731 final TextView textView = mView.get(); 6732 if (textView != null) textView.invalidate(); 6733 } 6734 6735 void start(int repeatLimit) { 6736 if (repeatLimit == 0) { 6737 stop(); 6738 return; 6739 } 6740 mRepeatLimit = repeatLimit; 6741 final TextView textView = mView.get(); 6742 if (textView != null && textView.mLayout != null) { 6743 mStatus = MARQUEE_STARTING; 6744 mScroll = 0.0f; 6745 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 6746 textView.getCompoundPaddingRight(); 6747 final float lineWidth = textView.mLayout.getLineWidth(0); 6748 final float gap = textWidth / 3.0f; 6749 mGhostStart = lineWidth - textWidth + gap; 6750 mMaxScroll = mGhostStart + textWidth; 6751 mGhostOffset = lineWidth + gap; 6752 mFadeStop = lineWidth + textWidth / 6.0f; 6753 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 6754 6755 textView.invalidate(); 6756 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 6757 } 6758 } 6759 6760 float getGhostOffset() { 6761 return mGhostOffset; 6762 } 6763 6764 boolean shouldDrawLeftFade() { 6765 return mScroll <= mFadeStop; 6766 } 6767 6768 boolean shouldDrawGhost() { 6769 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 6770 } 6771 6772 boolean isRunning() { 6773 return mStatus == MARQUEE_RUNNING; 6774 } 6775 6776 boolean isStopped() { 6777 return mStatus == MARQUEE_STOPPED; 6778 } 6779 } 6780 6781 /** 6782 * This method is called when the text is changed, in case any subclasses 6783 * would like to know. 6784 * 6785 * Within <code>text</code>, the <code>lengthAfter</code> characters 6786 * beginning at <code>start</code> have just replaced old text that had 6787 * length <code>lengthBefore</code>. It is an error to attempt to make 6788 * changes to <code>text</code> from this callback. 6789 * 6790 * @param text The text the TextView is displaying 6791 * @param start The offset of the start of the range of the text that was 6792 * modified 6793 * @param lengthBefore The length of the former text that has been replaced 6794 * @param lengthAfter The length of the replacement modified text 6795 */ 6796 protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { 6797 // intentionally empty 6798 } 6799 6800 /** 6801 * This method is called when the selection has changed, in case any 6802 * subclasses would like to know. 6803 * 6804 * @param selStart The new selection start location. 6805 * @param selEnd The new selection end location. 6806 */ 6807 protected void onSelectionChanged(int selStart, int selEnd) { 6808 // intentionally empty 6809 } 6810 6811 /** 6812 * Adds a TextWatcher to the list of those whose methods are called 6813 * whenever this TextView's text changes. 6814 * <p> 6815 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 6816 * not called after {@link #setText} calls. Now, doing {@link #setText} 6817 * if there are any text changed listeners forces the buffer type to 6818 * Editable if it would not otherwise be and does call this method. 6819 */ 6820 public void addTextChangedListener(TextWatcher watcher) { 6821 if (mListeners == null) { 6822 mListeners = new ArrayList<TextWatcher>(); 6823 } 6824 6825 mListeners.add(watcher); 6826 } 6827 6828 /** 6829 * Removes the specified TextWatcher from the list of those whose 6830 * methods are called 6831 * whenever this TextView's text changes. 6832 */ 6833 public void removeTextChangedListener(TextWatcher watcher) { 6834 if (mListeners != null) { 6835 int i = mListeners.indexOf(watcher); 6836 6837 if (i >= 0) { 6838 mListeners.remove(i); 6839 } 6840 } 6841 } 6842 6843 private void sendBeforeTextChanged(CharSequence text, int start, int before, 6844 int after) { 6845 if (mListeners != null) { 6846 final ArrayList<TextWatcher> list = mListeners; 6847 final int count = list.size(); 6848 for (int i = 0; i < count; i++) { 6849 list.get(i).beforeTextChanged(text, start, before, after); 6850 } 6851 } 6852 } 6853 6854 /** 6855 * Not private so it can be called from an inner class without going 6856 * through a thunk. 6857 */ 6858 void sendOnTextChanged(CharSequence text, int start, int before, 6859 int after) { 6860 if (mListeners != null) { 6861 final ArrayList<TextWatcher> list = mListeners; 6862 final int count = list.size(); 6863 for (int i = 0; i < count; i++) { 6864 list.get(i).onTextChanged(text, start, before, after); 6865 } 6866 } 6867 } 6868 6869 /** 6870 * Not private so it can be called from an inner class without going 6871 * through a thunk. 6872 */ 6873 void sendAfterTextChanged(Editable text) { 6874 if (mListeners != null) { 6875 final ArrayList<TextWatcher> list = mListeners; 6876 final int count = list.size(); 6877 for (int i = 0; i < count; i++) { 6878 list.get(i).afterTextChanged(text); 6879 } 6880 } 6881 } 6882 6883 /** 6884 * Not private so it can be called from an inner class without going 6885 * through a thunk. 6886 */ 6887 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 6888 final InputMethodState ims = mInputMethodState; 6889 if (ims == null || ims.mBatchEditNesting == 0) { 6890 updateAfterEdit(); 6891 } 6892 if (ims != null) { 6893 ims.mContentChanged = true; 6894 if (ims.mChangedStart < 0) { 6895 ims.mChangedStart = start; 6896 ims.mChangedEnd = start+before; 6897 } else { 6898 ims.mChangedStart = Math.min(ims.mChangedStart, start); 6899 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 6900 } 6901 ims.mChangedDelta += after-before; 6902 } 6903 6904 sendOnTextChanged(buffer, start, before, after); 6905 onTextChanged(buffer, start, before, after); 6906 6907 // Hide the controllers if the amount of content changed 6908 if (before != after) { 6909 hideControllers(); 6910 } 6911 } 6912 6913 /** 6914 * Not private so it can be called from an inner class without going 6915 * through a thunk. 6916 */ 6917 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 6918 // XXX Make the start and end move together if this ends up 6919 // spending too much time invalidating. 6920 6921 boolean selChanged = false; 6922 int newSelStart=-1, newSelEnd=-1; 6923 6924 final InputMethodState ims = mInputMethodState; 6925 6926 if (what == Selection.SELECTION_END) { 6927 mHighlightPathBogus = true; 6928 selChanged = true; 6929 newSelEnd = newStart; 6930 6931 if (!isFocused()) { 6932 mSelectionMoved = true; 6933 } 6934 6935 if (oldStart >= 0 || newStart >= 0) { 6936 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 6937 registerForPreDraw(); 6938 makeBlink(); 6939 } 6940 } 6941 6942 if (what == Selection.SELECTION_START) { 6943 mHighlightPathBogus = true; 6944 selChanged = true; 6945 newSelStart = newStart; 6946 6947 if (!isFocused()) { 6948 mSelectionMoved = true; 6949 } 6950 6951 if (oldStart >= 0 || newStart >= 0) { 6952 int end = Selection.getSelectionEnd(buf); 6953 invalidateCursor(end, oldStart, newStart); 6954 } 6955 } 6956 6957 if (selChanged) { 6958 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 6959 if (newSelStart < 0) { 6960 newSelStart = Selection.getSelectionStart(buf); 6961 } 6962 if (newSelEnd < 0) { 6963 newSelEnd = Selection.getSelectionEnd(buf); 6964 } 6965 onSelectionChanged(newSelStart, newSelEnd); 6966 } 6967 } 6968 6969 if (what instanceof UpdateAppearance || 6970 what instanceof ParagraphStyle) { 6971 if (ims == null || ims.mBatchEditNesting == 0) { 6972 invalidate(); 6973 mHighlightPathBogus = true; 6974 checkForResize(); 6975 } else { 6976 ims.mContentChanged = true; 6977 } 6978 } 6979 6980 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 6981 mHighlightPathBogus = true; 6982 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 6983 ims.mSelectionModeChanged = true; 6984 } 6985 6986 if (Selection.getSelectionStart(buf) >= 0) { 6987 if (ims == null || ims.mBatchEditNesting == 0) { 6988 invalidateCursor(); 6989 } else { 6990 ims.mCursorChanged = true; 6991 } 6992 } 6993 } 6994 6995 if (what instanceof ParcelableSpan) { 6996 // If this is a span that can be sent to a remote process, 6997 // the current extract editor would be interested in it. 6998 if (ims != null && ims.mExtracting != null) { 6999 if (ims.mBatchEditNesting != 0) { 7000 if (oldStart >= 0) { 7001 if (ims.mChangedStart > oldStart) { 7002 ims.mChangedStart = oldStart; 7003 } 7004 if (ims.mChangedStart > oldEnd) { 7005 ims.mChangedStart = oldEnd; 7006 } 7007 } 7008 if (newStart >= 0) { 7009 if (ims.mChangedStart > newStart) { 7010 ims.mChangedStart = newStart; 7011 } 7012 if (ims.mChangedStart > newEnd) { 7013 ims.mChangedStart = newEnd; 7014 } 7015 } 7016 } else { 7017 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 7018 + oldStart + "-" + oldEnd + "," 7019 + newStart + "-" + newEnd + what); 7020 ims.mContentChanged = true; 7021 } 7022 } 7023 } 7024 } 7025 7026 private class ChangeWatcher 7027 implements TextWatcher, SpanWatcher { 7028 7029 private CharSequence mBeforeText; 7030 7031 public void beforeTextChanged(CharSequence buffer, int start, 7032 int before, int after) { 7033 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 7034 + " before=" + before + " after=" + after + ": " + buffer); 7035 7036 if (AccessibilityManager.getInstance(mContext).isEnabled() 7037 && !isPasswordInputType(mInputType) 7038 && !hasPasswordTransformationMethod()) { 7039 mBeforeText = buffer.toString(); 7040 } 7041 7042 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 7043 } 7044 7045 public void onTextChanged(CharSequence buffer, int start, 7046 int before, int after) { 7047 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 7048 + " before=" + before + " after=" + after + ": " + buffer); 7049 TextView.this.handleTextChanged(buffer, start, before, after); 7050 7051 if (AccessibilityManager.getInstance(mContext).isEnabled() && 7052 (isFocused() || isSelected() && 7053 isShown())) { 7054 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 7055 mBeforeText = null; 7056 } 7057 } 7058 7059 public void afterTextChanged(Editable buffer) { 7060 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 7061 TextView.this.sendAfterTextChanged(buffer); 7062 7063 if (MetaKeyKeyListener.getMetaState(buffer, 7064 MetaKeyKeyListener.META_SELECTING) != 0) { 7065 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 7066 } 7067 } 7068 7069 public void onSpanChanged(Spannable buf, 7070 Object what, int s, int e, int st, int en) { 7071 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 7072 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 7073 TextView.this.spanChange(buf, what, s, st, e, en); 7074 } 7075 7076 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 7077 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 7078 + " what=" + what + ": " + buf); 7079 TextView.this.spanChange(buf, what, -1, s, -1, e); 7080 } 7081 7082 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 7083 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 7084 + " what=" + what + ": " + buf); 7085 TextView.this.spanChange(buf, what, s, -1, e, -1); 7086 } 7087 } 7088 7089 /** 7090 * @hide 7091 */ 7092 @Override 7093 public void dispatchFinishTemporaryDetach() { 7094 mDispatchTemporaryDetach = true; 7095 super.dispatchFinishTemporaryDetach(); 7096 mDispatchTemporaryDetach = false; 7097 } 7098 7099 @Override 7100 public void onStartTemporaryDetach() { 7101 super.onStartTemporaryDetach(); 7102 // Only track when onStartTemporaryDetach() is called directly, 7103 // usually because this instance is an editable field in a list 7104 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 7105 7106 // Because of View recycling in ListView, there is no easy way to know when a TextView with 7107 // selection becomes visible again. Until a better solution is found, stop text selection 7108 // mode (if any) as soon as this TextView is recycled. 7109 stopSelectionActionMode(); 7110 } 7111 7112 @Override 7113 public void onFinishTemporaryDetach() { 7114 super.onFinishTemporaryDetach(); 7115 // Only track when onStartTemporaryDetach() is called directly, 7116 // usually because this instance is an editable field in a list 7117 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 7118 } 7119 7120 @Override 7121 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 7122 if (mTemporaryDetach) { 7123 // If we are temporarily in the detach state, then do nothing. 7124 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7125 return; 7126 } 7127 7128 mShowCursor = SystemClock.uptimeMillis(); 7129 7130 ensureEndedBatchEdit(); 7131 7132 if (focused) { 7133 int selStart = getSelectionStart(); 7134 int selEnd = getSelectionEnd(); 7135 7136 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 7137 // mode for these, unless there was a specific selection already started. 7138 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 7139 selEnd == mText.length(); 7140 mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted; 7141 7142 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 7143 // If a tap was used to give focus to that view, move cursor at tap position. 7144 // Has to be done before onTakeFocus, which can be overloaded. 7145 final int lastTapPosition = getLastTapPosition(); 7146 if (lastTapPosition >= 0) { 7147 Selection.setSelection((Spannable) mText, lastTapPosition); 7148 } 7149 7150 if (mMovement != null) { 7151 mMovement.onTakeFocus(this, (Spannable) mText, direction); 7152 } 7153 7154 // The DecorView does not have focus when the 'Done' ExtractEditText button is 7155 // pressed. Since it is the ViewRoot's mView, it requests focus before 7156 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 7157 // This special case ensure that we keep current selection in that case. 7158 // It would be better to know why the DecorView does not have focus at that time. 7159 if (((this instanceof ExtractEditText) || mSelectionMoved) && 7160 selStart >= 0 && selEnd >= 0) { 7161 /* 7162 * Someone intentionally set the selection, so let them 7163 * do whatever it is that they wanted to do instead of 7164 * the default on-focus behavior. We reset the selection 7165 * here instead of just skipping the onTakeFocus() call 7166 * because some movement methods do something other than 7167 * just setting the selection in theirs and we still 7168 * need to go through that path. 7169 */ 7170 Selection.setSelection((Spannable) mText, selStart, selEnd); 7171 } 7172 7173 if (mSelectAllOnFocus) { 7174 selectAll(); 7175 } 7176 7177 mTouchFocusSelected = true; 7178 } 7179 7180 mFrozenWithFocus = false; 7181 mSelectionMoved = false; 7182 7183 if (mText instanceof Spannable) { 7184 Spannable sp = (Spannable) mText; 7185 MetaKeyKeyListener.resetMetaState(sp); 7186 } 7187 7188 makeBlink(); 7189 7190 if (mError != null) { 7191 showError(); 7192 } 7193 } else { 7194 if (mError != null) { 7195 hideError(); 7196 } 7197 // Don't leave us in the middle of a batch edit. 7198 onEndBatchEdit(); 7199 7200 if (this instanceof ExtractEditText) { 7201 // terminateTextSelectionMode removes selection, which we want to keep when 7202 // ExtractEditText goes out of focus. 7203 final int selStart = getSelectionStart(); 7204 final int selEnd = getSelectionEnd(); 7205 hideControllers(); 7206 Selection.setSelection((Spannable) mText, selStart, selEnd); 7207 } else { 7208 hideControllers(); 7209 } 7210 7211 // No need to create the controller 7212 if (mSelectionModifierCursorController != null) { 7213 mSelectionModifierCursorController.resetTouchOffsets(); 7214 } 7215 } 7216 7217 startStopMarquee(focused); 7218 7219 if (mTransformation != null) { 7220 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 7221 } 7222 7223 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7224 } 7225 7226 private int getLastTapPosition() { 7227 // No need to create the controller at that point, no last tap position saved 7228 if (mSelectionModifierCursorController != null) { 7229 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 7230 if (lastTapPosition >= 0) { 7231 // Safety check, should not be possible. 7232 if (lastTapPosition > mText.length()) { 7233 Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs " 7234 + mText.length() + ")"); 7235 lastTapPosition = mText.length(); 7236 } 7237 return lastTapPosition; 7238 } 7239 } 7240 7241 return -1; 7242 } 7243 7244 @Override 7245 public void onWindowFocusChanged(boolean hasWindowFocus) { 7246 super.onWindowFocusChanged(hasWindowFocus); 7247 7248 if (hasWindowFocus) { 7249 if (mBlink != null) { 7250 mBlink.uncancel(); 7251 makeBlink(); 7252 } 7253 } else { 7254 if (mBlink != null) { 7255 mBlink.cancel(); 7256 } 7257 // Don't leave us in the middle of a batch edit. 7258 onEndBatchEdit(); 7259 if (mInputContentType != null) { 7260 mInputContentType.enterDown = false; 7261 } 7262 hideControllers(); 7263 } 7264 7265 startStopMarquee(hasWindowFocus); 7266 } 7267 7268 @Override 7269 protected void onVisibilityChanged(View changedView, int visibility) { 7270 super.onVisibilityChanged(changedView, visibility); 7271 if (visibility != VISIBLE) { 7272 hideControllers(); 7273 } 7274 } 7275 7276 /** 7277 * Use {@link BaseInputConnection#removeComposingSpans 7278 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 7279 * state from this text view. 7280 */ 7281 public void clearComposingText() { 7282 if (mText instanceof Spannable) { 7283 BaseInputConnection.removeComposingSpans((Spannable)mText); 7284 } 7285 } 7286 7287 @Override 7288 public void setSelected(boolean selected) { 7289 boolean wasSelected = isSelected(); 7290 7291 super.setSelected(selected); 7292 7293 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7294 if (selected) { 7295 startMarquee(); 7296 } else { 7297 stopMarquee(); 7298 } 7299 } 7300 } 7301 7302 @Override 7303 public boolean onTouchEvent(MotionEvent event) { 7304 final int action = event.getActionMasked(); 7305 7306 if (hasInsertionController()) { 7307 getInsertionController().onTouchEvent(event); 7308 } 7309 if (hasSelectionController()) { 7310 getSelectionController().onTouchEvent(event); 7311 } 7312 7313 if (action == MotionEvent.ACTION_DOWN) { 7314 mLastDownPositionX = (int) event.getX(); 7315 mLastDownPositionY = (int) event.getY(); 7316 7317 // Reset this state; it will be re-set if super.onTouchEvent 7318 // causes focus to move to the view. 7319 mTouchFocusSelected = false; 7320 mIgnoreActionUpEvent = false; 7321 } 7322 7323 final boolean superResult = super.onTouchEvent(event); 7324 7325 /* 7326 * Don't handle the release after a long press, because it will 7327 * move the selection away from whatever the menu action was 7328 * trying to affect. 7329 */ 7330 if (mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 7331 mDiscardNextActionUp = false; 7332 return superResult; 7333 } 7334 7335 final boolean touchIsFinished = action == MotionEvent.ACTION_UP && !mIgnoreActionUpEvent && 7336 isFocused(); 7337 7338 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 7339 && mText instanceof Spannable && mLayout != null) { 7340 boolean handled = false; 7341 7342 if (mMovement != null) { 7343 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 7344 } 7345 7346 if (mLinksClickable && mAutoLinkMask != 0 && mTextIsSelectable && touchIsFinished) { 7347 // The LinkMovementMethod which should handle taps on links has not been installed 7348 // to support text selection. We reproduce its behavior here to open links. 7349 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 7350 getSelectionEnd(), ClickableSpan.class); 7351 7352 if (links.length != 0) { 7353 links[0].onClick(this); 7354 handled = true; 7355 } 7356 } 7357 7358 if ((isTextEditable() || mTextIsSelectable) && touchIsFinished) { 7359 // Show the IME, except when selecting in read-only text. 7360 if (!mTextIsSelectable) { 7361 final InputMethodManager imm = InputMethodManager.peekInstance(); 7362 handled |= imm != null && imm.showSoftInput(this, 0); 7363 } 7364 7365 boolean selectAllGotFocus = mSelectAllOnFocus && didTouchFocusSelect(); 7366 if (!selectAllGotFocus && hasSelection()) { 7367 startSelectionActionMode(); 7368 } else { 7369 stopSelectionActionMode(); 7370 hideSuggestions(); 7371 if (hasInsertionController() && !selectAllGotFocus && mText.length() > 0) { 7372 getInsertionController().show(); 7373 } 7374 } 7375 } 7376 7377 if (handled) { 7378 return true; 7379 } 7380 } 7381 7382 return superResult; 7383 } 7384 7385 @Override 7386 public boolean onGenericMotionEvent(MotionEvent event) { 7387 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 7388 try { 7389 if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) { 7390 return true; 7391 } 7392 } catch (AbstractMethodError ex) { 7393 // onGenericMotionEvent was added to the MovementMethod interface in API 12. 7394 // Ignore its absence in case third party applications implemented the 7395 // interface directly. 7396 } 7397 } 7398 return super.onGenericMotionEvent(event); 7399 } 7400 7401 private void prepareCursorControllers() { 7402 boolean windowSupportsHandles = false; 7403 7404 ViewGroup.LayoutParams params = getRootView().getLayoutParams(); 7405 if (params instanceof WindowManager.LayoutParams) { 7406 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 7407 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 7408 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 7409 } 7410 7411 mInsertionControllerEnabled = windowSupportsHandles && isCursorVisible() && mLayout != null; 7412 mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() && 7413 mLayout != null; 7414 7415 if (!mInsertionControllerEnabled) { 7416 hideInsertionPointCursorController(); 7417 if (mInsertionPointCursorController != null) { 7418 mInsertionPointCursorController.onDetached(); 7419 mInsertionPointCursorController = null; 7420 } 7421 } 7422 7423 if (!mSelectionControllerEnabled) { 7424 stopSelectionActionMode(); 7425 if (mSelectionModifierCursorController != null) { 7426 mSelectionModifierCursorController.onDetached(); 7427 mSelectionModifierCursorController = null; 7428 } 7429 } 7430 } 7431 7432 /** 7433 * @return True iff this TextView contains a text that can be edited, or if this is 7434 * a selectable TextView. 7435 */ 7436 private boolean isTextEditable() { 7437 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 7438 } 7439 7440 /** 7441 * Returns true, only while processing a touch gesture, if the initial 7442 * touch down event caused focus to move to the text view and as a result 7443 * its selection changed. Only valid while processing the touch gesture 7444 * of interest. 7445 */ 7446 public boolean didTouchFocusSelect() { 7447 return mTouchFocusSelected; 7448 } 7449 7450 @Override 7451 public void cancelLongPress() { 7452 super.cancelLongPress(); 7453 mIgnoreActionUpEvent = true; 7454 } 7455 7456 @Override 7457 public boolean onTrackballEvent(MotionEvent event) { 7458 if (mMovement != null && mText instanceof Spannable && 7459 mLayout != null) { 7460 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 7461 return true; 7462 } 7463 } 7464 7465 return super.onTrackballEvent(event); 7466 } 7467 7468 public void setScroller(Scroller s) { 7469 mScroller = s; 7470 } 7471 7472 private static class Blink extends Handler implements Runnable { 7473 private final WeakReference<TextView> mView; 7474 private boolean mCancelled; 7475 7476 public Blink(TextView v) { 7477 mView = new WeakReference<TextView>(v); 7478 } 7479 7480 public void run() { 7481 if (mCancelled) { 7482 return; 7483 } 7484 7485 removeCallbacks(Blink.this); 7486 7487 TextView tv = mView.get(); 7488 7489 if (tv != null && tv.shouldBlink()) { 7490 if (tv.mLayout != null) { 7491 tv.invalidateCursorPath(); 7492 } 7493 7494 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 7495 } 7496 } 7497 7498 void cancel() { 7499 if (!mCancelled) { 7500 removeCallbacks(Blink.this); 7501 mCancelled = true; 7502 } 7503 } 7504 7505 void uncancel() { 7506 mCancelled = false; 7507 } 7508 } 7509 7510 /** 7511 * @return True when the TextView isFocused and has a valid zero-length selection (cursor). 7512 */ 7513 private boolean shouldBlink() { 7514 if (!isFocused()) return false; 7515 7516 final int start = getSelectionStart(); 7517 if (start < 0) return false; 7518 7519 final int end = getSelectionEnd(); 7520 if (end < 0) return false; 7521 7522 return start == end; 7523 } 7524 7525 private void makeBlink() { 7526 if (isCursorVisible()) { 7527 if (shouldBlink()) { 7528 mShowCursor = SystemClock.uptimeMillis(); 7529 if (mBlink == null) mBlink = new Blink(this); 7530 mBlink.removeCallbacks(mBlink); 7531 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 7532 } 7533 } else { 7534 if (mBlink != null) mBlink.removeCallbacks(mBlink); 7535 } 7536 } 7537 7538 @Override 7539 protected float getLeftFadingEdgeStrength() { 7540 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7541 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7542 if (mMarquee != null && !mMarquee.isStopped()) { 7543 final Marquee marquee = mMarquee; 7544 if (marquee.shouldDrawLeftFade()) { 7545 return marquee.mScroll / getHorizontalFadingEdgeLength(); 7546 } else { 7547 return 0.0f; 7548 } 7549 } else if (getLineCount() == 1) { 7550 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7551 case Gravity.LEFT: 7552 return 0.0f; 7553 case Gravity.RIGHT: 7554 return (mLayout.getLineRight(0) - (mRight - mLeft) - 7555 getCompoundPaddingLeft() - getCompoundPaddingRight() - 7556 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 7557 case Gravity.CENTER_HORIZONTAL: 7558 return 0.0f; 7559 } 7560 } 7561 } 7562 return super.getLeftFadingEdgeStrength(); 7563 } 7564 7565 @Override 7566 protected float getRightFadingEdgeStrength() { 7567 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7568 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7569 if (mMarquee != null && !mMarquee.isStopped()) { 7570 final Marquee marquee = mMarquee; 7571 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 7572 } else if (getLineCount() == 1) { 7573 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7574 case Gravity.LEFT: 7575 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 7576 getCompoundPaddingRight(); 7577 final float lineWidth = mLayout.getLineWidth(0); 7578 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 7579 case Gravity.RIGHT: 7580 return 0.0f; 7581 case Gravity.CENTER_HORIZONTAL: 7582 case Gravity.FILL_HORIZONTAL: 7583 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 7584 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 7585 getHorizontalFadingEdgeLength(); 7586 } 7587 } 7588 } 7589 return super.getRightFadingEdgeStrength(); 7590 } 7591 7592 @Override 7593 protected int computeHorizontalScrollRange() { 7594 if (mLayout != null) { 7595 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 7596 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 7597 } 7598 7599 return super.computeHorizontalScrollRange(); 7600 } 7601 7602 @Override 7603 protected int computeVerticalScrollRange() { 7604 if (mLayout != null) 7605 return mLayout.getHeight(); 7606 7607 return super.computeVerticalScrollRange(); 7608 } 7609 7610 @Override 7611 protected int computeVerticalScrollExtent() { 7612 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 7613 } 7614 7615 public enum BufferType { 7616 NORMAL, SPANNABLE, EDITABLE, 7617 } 7618 7619 /** 7620 * Returns the TextView_textColor attribute from the 7621 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 7622 * from the TextView_textAppearance attribute, if TextView_textColor 7623 * was not set directly. 7624 */ 7625 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 7626 ColorStateList colors; 7627 colors = attrs.getColorStateList(com.android.internal.R.styleable. 7628 TextView_textColor); 7629 7630 if (colors == null) { 7631 int ap = attrs.getResourceId(com.android.internal.R.styleable. 7632 TextView_textAppearance, -1); 7633 if (ap != -1) { 7634 TypedArray appearance; 7635 appearance = context.obtainStyledAttributes(ap, 7636 com.android.internal.R.styleable.TextAppearance); 7637 colors = appearance.getColorStateList(com.android.internal.R.styleable. 7638 TextAppearance_textColor); 7639 appearance.recycle(); 7640 } 7641 } 7642 7643 return colors; 7644 } 7645 7646 /** 7647 * Returns the default color from the TextView_textColor attribute 7648 * from the AttributeSet, if set, or the default color from the 7649 * TextAppearance_textColor from the TextView_textAppearance attribute, 7650 * if TextView_textColor was not set directly. 7651 */ 7652 public static int getTextColor(Context context, 7653 TypedArray attrs, 7654 int def) { 7655 ColorStateList colors = getTextColors(context, attrs); 7656 7657 if (colors == null) { 7658 return def; 7659 } else { 7660 return colors.getDefaultColor(); 7661 } 7662 } 7663 7664 @Override 7665 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 7666 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 7667 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 7668 switch (keyCode) { 7669 case KeyEvent.KEYCODE_A: 7670 if (canSelectText()) { 7671 return onTextContextMenuItem(ID_SELECT_ALL); 7672 } 7673 break; 7674 case KeyEvent.KEYCODE_X: 7675 if (canCut()) { 7676 return onTextContextMenuItem(ID_CUT); 7677 } 7678 break; 7679 case KeyEvent.KEYCODE_C: 7680 if (canCopy()) { 7681 return onTextContextMenuItem(ID_COPY); 7682 } 7683 break; 7684 case KeyEvent.KEYCODE_V: 7685 if (canPaste()) { 7686 return onTextContextMenuItem(ID_PASTE); 7687 } 7688 break; 7689 } 7690 } 7691 return super.onKeyShortcut(keyCode, event); 7692 } 7693 7694 /** 7695 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 7696 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 7697 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 7698 */ 7699 private boolean canSelectText() { 7700 return hasSelectionController() && mText.length() != 0; 7701 } 7702 7703 /** 7704 * Test based on the <i>intrinsic</i> charateristics of the TextView. 7705 * The text must be spannable and the movement method must allow for arbitary selection. 7706 * 7707 * See also {@link #canSelectText()}. 7708 */ 7709 private boolean textCanBeSelected() { 7710 // prepareCursorController() relies on this method. 7711 // If you change this condition, make sure prepareCursorController is called anywhere 7712 // the value of this condition might be changed. 7713 return mText instanceof Spannable && mMovement != null && mMovement.canSelectArbitrarily(); 7714 } 7715 7716 private boolean canCut() { 7717 if (hasPasswordTransformationMethod()) { 7718 return false; 7719 } 7720 7721 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mInput != null) { 7722 return true; 7723 } 7724 7725 return false; 7726 } 7727 7728 private boolean canCopy() { 7729 if (hasPasswordTransformationMethod()) { 7730 return false; 7731 } 7732 7733 if (mText.length() > 0 && hasSelection()) { 7734 return true; 7735 } 7736 7737 return false; 7738 } 7739 7740 private boolean canPaste() { 7741 return (mText instanceof Editable && 7742 mInput != null && 7743 getSelectionStart() >= 0 && 7744 getSelectionEnd() >= 0 && 7745 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 7746 hasPrimaryClip()); 7747 } 7748 7749 private boolean isWordCharacter(int c, int type) { 7750 return (c == '\'' || c == '"' || 7751 type == Character.UPPERCASE_LETTER || 7752 type == Character.LOWERCASE_LETTER || 7753 type == Character.TITLECASE_LETTER || 7754 type == Character.MODIFIER_LETTER || 7755 type == Character.OTHER_LETTER || // Should handle asian characters 7756 type == Character.DECIMAL_DIGIT_NUMBER); 7757 } 7758 7759 private static long packRangeInLong(int start, int end) { 7760 return (((long) start) << 32) | end; 7761 } 7762 7763 private static int extractRangeStartFromLong(long range) { 7764 return (int) (range >>> 32); 7765 } 7766 7767 private static int extractRangeEndFromLong(long range) { 7768 return (int) (range & 0x00000000FFFFFFFFL); 7769 } 7770 7771 private boolean selectAll() { 7772 final int length = mText.length(); 7773 Selection.setSelection((Spannable) mText, 0, length); 7774 return length > 0; 7775 } 7776 7777 /** 7778 * Adjusts selection to the word under last touch offset. 7779 * Return true if the operation was successfully performed. 7780 */ 7781 private boolean selectCurrentWord() { 7782 if (!canSelectText()) { 7783 return false; 7784 } 7785 7786 if (hasPasswordTransformationMethod()) { 7787 // Always select all on a password field. 7788 // Cut/copy menu entries are not available for passwords, but being able to select all 7789 // is however useful to delete or paste to replace the entire content. 7790 return selectAll(); 7791 } 7792 7793 int klass = mInputType & InputType.TYPE_MASK_CLASS; 7794 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 7795 7796 // Specific text field types: select the entire text for these 7797 if (klass == InputType.TYPE_CLASS_NUMBER || 7798 klass == InputType.TYPE_CLASS_PHONE || 7799 klass == InputType.TYPE_CLASS_DATETIME || 7800 variation == InputType.TYPE_TEXT_VARIATION_URI || 7801 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 7802 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 7803 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 7804 return selectAll(); 7805 } 7806 7807 long lastTouchOffsets = getLastTouchOffsets(); 7808 final int minOffset = extractRangeStartFromLong(lastTouchOffsets); 7809 final int maxOffset = extractRangeEndFromLong(lastTouchOffsets); 7810 7811 int selectionStart, selectionEnd; 7812 7813 // If a URLSpan (web address, email, phone...) is found at that position, select it. 7814 URLSpan[] urlSpans = ((Spanned) mText).getSpans(minOffset, maxOffset, URLSpan.class); 7815 if (urlSpans.length == 1) { 7816 URLSpan url = urlSpans[0]; 7817 selectionStart = ((Spanned) mText).getSpanStart(url); 7818 selectionEnd = ((Spanned) mText).getSpanEnd(url); 7819 } else { 7820 if (mWordIterator == null) { 7821 mWordIterator = new WordIterator(); 7822 } 7823 // WordIerator handles text changes, this is a no-op if text in unchanged. 7824 mWordIterator.setCharSequence(mText); 7825 7826 selectionStart = mWordIterator.getBeginning(minOffset); 7827 if (selectionStart == BreakIterator.DONE) return false; 7828 7829 selectionEnd = mWordIterator.getEnd(maxOffset); 7830 if (selectionEnd == BreakIterator.DONE) return false; 7831 } 7832 7833 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 7834 return true; 7835 } 7836 7837 private long getLastTouchOffsets() { 7838 int minOffset, maxOffset; 7839 7840 if (mContextMenuTriggeredByKey) { 7841 minOffset = getSelectionStart(); 7842 maxOffset = getSelectionEnd(); 7843 } else { 7844 SelectionModifierCursorController selectionController = getSelectionController(); 7845 minOffset = selectionController.getMinTouchOffset(); 7846 maxOffset = selectionController.getMaxTouchOffset(); 7847 } 7848 7849 return packRangeInLong(minOffset, maxOffset); 7850 } 7851 7852 @Override 7853 public void onPopulateAccessibilityEvent(AccessibilityEvent event) { 7854 if (!isShown()) { 7855 return; 7856 } 7857 7858 final boolean isPassword = hasPasswordTransformationMethod(); 7859 7860 if (!isPassword) { 7861 CharSequence text = getText(); 7862 if (TextUtils.isEmpty(text)) { 7863 text = getHint(); 7864 } 7865 if (!TextUtils.isEmpty(text)) { 7866 event.getText().add(text); 7867 } 7868 } else { 7869 event.setPassword(isPassword); 7870 } 7871 } 7872 7873 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 7874 int fromIndex, int removedCount, int addedCount) { 7875 AccessibilityEvent event = 7876 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 7877 event.setFromIndex(fromIndex); 7878 event.setRemovedCount(removedCount); 7879 event.setAddedCount(addedCount); 7880 event.setBeforeText(beforeText); 7881 sendAccessibilityEventUnchecked(event); 7882 } 7883 7884 @Override 7885 protected void onCreateContextMenu(ContextMenu menu) { 7886 super.onCreateContextMenu(menu); 7887 boolean added = false; 7888 mContextMenuTriggeredByKey = mDPadCenterIsDown || mEnterKeyIsDown; 7889 // Problem with context menu on long press: the menu appears while the key in down and when 7890 // the key is released, the view does not receive the key_up event. 7891 // We need two layers of flags: mDPadCenterIsDown and mEnterKeyIsDown are set in key down/up 7892 // events. We cannot simply clear these flags in onTextContextMenuItem since 7893 // it may not be called (if the user/ discards the context menu with the back key). 7894 // We clear these flags here and mContextMenuTriggeredByKey saves that state so that it is 7895 // available in onTextContextMenuItem. 7896 mDPadCenterIsDown = mEnterKeyIsDown = false; 7897 7898 MenuHandler handler = new MenuHandler(); 7899 7900 if (mText instanceof Spanned && hasSelectionController()) { 7901 long lastTouchOffset = getLastTouchOffsets(); 7902 final int selStart = extractRangeStartFromLong(lastTouchOffset); 7903 final int selEnd = extractRangeEndFromLong(lastTouchOffset); 7904 7905 URLSpan[] urls = ((Spanned) mText).getSpans(selStart, selEnd, URLSpan.class); 7906 if (urls.length > 0) { 7907 menu.add(0, ID_COPY_URL, 0, com.android.internal.R.string.copyUrl). 7908 setOnMenuItemClickListener(handler); 7909 7910 added = true; 7911 } 7912 } 7913 7914 // The context menu is not empty, which will prevent the selection mode from starting. 7915 // Add a entry to start it in the context menu. 7916 // TODO Does not handle the case where a subclass does not call super.thisMethod or 7917 // populates the menu AFTER this call. 7918 if (menu.size() > 0) { 7919 menu.add(0, ID_SELECTION_MODE, 0, com.android.internal.R.string.selectTextMode). 7920 setOnMenuItemClickListener(handler); 7921 added = true; 7922 } 7923 7924 if (added) { 7925 menu.setHeaderTitle(com.android.internal.R.string.editTextMenuTitle); 7926 } 7927 } 7928 7929 /** 7930 * Returns whether this text view is a current input method target. The 7931 * default implementation just checks with {@link InputMethodManager}. 7932 */ 7933 public boolean isInputMethodTarget() { 7934 InputMethodManager imm = InputMethodManager.peekInstance(); 7935 return imm != null && imm.isActive(this); 7936 } 7937 7938 // Selection context mode 7939 private static final int ID_SELECT_ALL = android.R.id.selectAll; 7940 private static final int ID_CUT = android.R.id.cut; 7941 private static final int ID_COPY = android.R.id.copy; 7942 private static final int ID_PASTE = android.R.id.paste; 7943 // Context menu entries 7944 private static final int ID_COPY_URL = android.R.id.copyUrl; 7945 private static final int ID_SELECTION_MODE = android.R.id.selectTextMode; 7946 7947 private class MenuHandler implements MenuItem.OnMenuItemClickListener { 7948 public boolean onMenuItemClick(MenuItem item) { 7949 return onTextContextMenuItem(item.getItemId()); 7950 } 7951 } 7952 7953 /** 7954 * Called when a context menu option for the text view is selected. Currently 7955 * this will be {@link android.R.id#copyUrl}, {@link android.R.id#selectTextMode}, 7956 * {@link android.R.id#selectAll}, {@link android.R.id#paste}, {@link android.R.id#cut} 7957 * or {@link android.R.id#copy}. 7958 * 7959 * @return true if the context menu item action was performed. 7960 */ 7961 public boolean onTextContextMenuItem(int id) { 7962 int min = 0; 7963 int max = mText.length(); 7964 7965 if (isFocused()) { 7966 final int selStart = getSelectionStart(); 7967 final int selEnd = getSelectionEnd(); 7968 7969 min = Math.max(0, Math.min(selStart, selEnd)); 7970 max = Math.max(0, Math.max(selStart, selEnd)); 7971 } 7972 7973 switch (id) { 7974 case ID_COPY_URL: 7975 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, URLSpan.class); 7976 if (urls.length >= 1) { 7977 ClipData clip = null; 7978 for (int i=0; i<urls.length; i++) { 7979 Uri uri = Uri.parse(urls[0].getURL()); 7980 if (clip == null) { 7981 clip = ClipData.newRawUri(null, uri); 7982 } else { 7983 clip.addItem(new ClipData.Item(uri)); 7984 } 7985 } 7986 if (clip != null) { 7987 setPrimaryClip(clip); 7988 } 7989 } 7990 stopSelectionActionMode(); 7991 return true; 7992 7993 case ID_SELECTION_MODE: 7994 if (mSelectionActionMode != null) { 7995 // Selection mode is already started, simply change selected part. 7996 selectCurrentWord(); 7997 } else { 7998 startSelectionActionMode(); 7999 } 8000 return true; 8001 8002 case ID_SELECT_ALL: 8003 // This does not enter text selection mode. Text is highlighted, so that it can be 8004 // bulk edited, like selectAllOnFocus does. Returns true even if text is empty. 8005 selectAll(); 8006 return true; 8007 8008 case ID_PASTE: 8009 paste(min, max); 8010 return true; 8011 8012 case ID_CUT: 8013 setPrimaryClip(ClipData.newPlainText(null, mTransformed.subSequence(min, max))); 8014 ((Editable) mText).delete(min, max); 8015 stopSelectionActionMode(); 8016 return true; 8017 8018 case ID_COPY: 8019 setPrimaryClip(ClipData.newPlainText(null, mTransformed.subSequence(min, max))); 8020 stopSelectionActionMode(); 8021 return true; 8022 } 8023 return false; 8024 } 8025 8026 /** 8027 * Prepare text so that there are not zero or two spaces at beginning and end of region defined 8028 * by [min, max] when replacing this region by paste. 8029 * Note that if there were two spaces (or more) at that position before, they are kept. We just 8030 * make sure we do not add an extra one from the paste content. 8031 */ 8032 private long prepareSpacesAroundPaste(int min, int max, CharSequence paste) { 8033 if (paste.length() > 0) { 8034 if (min > 0) { 8035 final char charBefore = mTransformed.charAt(min - 1); 8036 final char charAfter = paste.charAt(0); 8037 8038 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8039 // Two spaces at beginning of paste: remove one 8040 final int originalLength = mText.length(); 8041 ((Editable) mText).delete(min - 1, min); 8042 // Due to filters, there is no guarantee that exactly one character was 8043 // removed: count instead. 8044 final int delta = mText.length() - originalLength; 8045 min += delta; 8046 max += delta; 8047 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8048 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8049 // No space at beginning of paste: add one 8050 final int originalLength = mText.length(); 8051 ((Editable) mText).replace(min, min, " "); 8052 // Taking possible filters into account as above. 8053 final int delta = mText.length() - originalLength; 8054 min += delta; 8055 max += delta; 8056 } 8057 } 8058 8059 if (max < mText.length()) { 8060 final char charBefore = paste.charAt(paste.length() - 1); 8061 final char charAfter = mTransformed.charAt(max); 8062 8063 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8064 // Two spaces at end of paste: remove one 8065 ((Editable) mText).delete(max, max + 1); 8066 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8067 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8068 // No space at end of paste: add one 8069 ((Editable) mText).replace(max, max, " "); 8070 } 8071 } 8072 } 8073 8074 return packRangeInLong(min, max); 8075 } 8076 8077 private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { 8078 TextView shadowView = (TextView) inflate(mContext, 8079 com.android.internal.R.layout.text_drag_thumbnail, null); 8080 8081 if (shadowView == null) { 8082 throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); 8083 } 8084 8085 if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { 8086 text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); 8087 } 8088 shadowView.setText(text); 8089 shadowView.setTextColor(getTextColors()); 8090 8091 shadowView.setTextAppearance(mContext, R.styleable.Theme_textAppearanceLarge); 8092 shadowView.setGravity(Gravity.CENTER); 8093 8094 shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 8095 ViewGroup.LayoutParams.WRAP_CONTENT)); 8096 8097 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8098 shadowView.measure(size, size); 8099 8100 shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); 8101 shadowView.invalidate(); 8102 return new DragShadowBuilder(shadowView); 8103 } 8104 8105 private static class DragLocalState { 8106 public TextView sourceTextView; 8107 public int start, end; 8108 8109 public DragLocalState(TextView sourceTextView, int start, int end) { 8110 this.sourceTextView = sourceTextView; 8111 this.start = start; 8112 this.end = end; 8113 } 8114 } 8115 8116 @Override 8117 public boolean performLongClick() { 8118 if (super.performLongClick()) { 8119 mDiscardNextActionUp = true; 8120 return true; 8121 } 8122 8123 boolean handled = false; 8124 8125 // Long press in empty space moves cursor and shows the Paste affordance if available. 8126 if (!isPositionOnText(mLastDownPositionX, mLastDownPositionY) && 8127 mInsertionControllerEnabled) { 8128 final int offset = getOffset(mLastDownPositionX, mLastDownPositionY); 8129 stopSelectionActionMode(); 8130 Selection.setSelection((Spannable) mText, offset); 8131 getInsertionController().showWithPaste(); 8132 handled = true; 8133 } 8134 8135 if (!handled && mSelectionActionMode != null) { 8136 if (touchPositionIsInSelection()) { 8137 // Start a drag 8138 final int start = getSelectionStart(); 8139 final int end = getSelectionEnd(); 8140 CharSequence selectedText = mTransformed.subSequence(start, end); 8141 ClipData data = ClipData.newPlainText(null, selectedText); 8142 DragLocalState localState = new DragLocalState(this, start, end); 8143 startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); 8144 stopSelectionActionMode(); 8145 } else { 8146 selectCurrentWord(); 8147 } 8148 handled = true; 8149 } 8150 8151 // Start a new selection 8152 handled |= !handled && startSelectionActionMode(); 8153 8154 if (handled) { 8155 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 8156 mDiscardNextActionUp = true; 8157 } 8158 8159 return handled; 8160 } 8161 8162 private boolean touchPositionIsInSelection() { 8163 int selectionStart = getSelectionStart(); 8164 int selectionEnd = getSelectionEnd(); 8165 8166 if (selectionStart == selectionEnd) { 8167 return false; 8168 } 8169 8170 if (selectionStart > selectionEnd) { 8171 int tmp = selectionStart; 8172 selectionStart = selectionEnd; 8173 selectionEnd = tmp; 8174 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8175 } 8176 8177 SelectionModifierCursorController selectionController = getSelectionController(); 8178 int minOffset = selectionController.getMinTouchOffset(); 8179 int maxOffset = selectionController.getMaxTouchOffset(); 8180 8181 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 8182 } 8183 8184 private static class SuggestionRangeSpan extends UnderlineSpan { 8185 // TODO themable, would be nice to make it a child class of TextAppearanceSpan, but 8186 // there is no way to have underline and TextAppearanceSpan. 8187 } 8188 8189 private class SuggestionsPopupWindow implements OnClickListener { 8190 private static final int MAX_NUMBER_SUGGESTIONS = 5; 8191 private static final int NO_SUGGESTIONS = -1; 8192 private final PopupWindow mContainer; 8193 private final ViewGroup[] mSuggestionViews = new ViewGroup[2]; 8194 private final int[] mSuggestionViewLayouts = new int[] { 8195 mTextEditSuggestionsBottomWindowLayout, mTextEditSuggestionsTopWindowLayout}; 8196 private WordIterator mWordIterator; 8197 private TextAppearanceSpan[] mHighlightSpans = new TextAppearanceSpan[0]; 8198 8199 public SuggestionsPopupWindow() { 8200 mContainer = new PopupWindow(TextView.this.mContext, null, 8201 com.android.internal.R.attr.textSuggestionsWindowStyle); 8202 mContainer.setSplitTouchEnabled(true); 8203 mContainer.setClippingEnabled(false); 8204 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8205 8206 mContainer.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 8207 mContainer.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 8208 } 8209 8210 private class SuggestionInfo { 8211 int suggestionStart, suggestionEnd; // range of suggestion item with replacement text 8212 int spanStart, spanEnd; // range in TextView where text should be inserted 8213 } 8214 8215 private ViewGroup getViewGroup(boolean under) { 8216 final int viewIndex = under ? 0 : 1; 8217 ViewGroup viewGroup = mSuggestionViews[viewIndex]; 8218 8219 if (viewGroup == null) { 8220 final int layout = mSuggestionViewLayouts[viewIndex]; 8221 LayoutInflater inflater = (LayoutInflater) TextView.this.mContext. 8222 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 8223 8224 if (inflater == null) { 8225 throw new IllegalArgumentException( 8226 "Unable to create TextEdit suggestion window inflater"); 8227 } 8228 8229 View view = inflater.inflate(layout, null); 8230 8231 if (! (view instanceof ViewGroup)) { 8232 throw new IllegalArgumentException( 8233 "Inflated TextEdit suggestion window is not a ViewGroup: " + view); 8234 } 8235 8236 viewGroup = (ViewGroup) view; 8237 8238 // Inflate the suggestion items once and for all. 8239 for (int i = 0; i < MAX_NUMBER_SUGGESTIONS; i++) { 8240 View childView = inflater.inflate(mTextEditSuggestionItemLayout, viewGroup, 8241 false); 8242 8243 if (! (childView instanceof TextView)) { 8244 throw new IllegalArgumentException( 8245 "Inflated TextEdit suggestion item is not a TextView: " + childView); 8246 } 8247 8248 childView.setTag(new SuggestionInfo()); 8249 viewGroup.addView(childView); 8250 childView.setOnClickListener(this); 8251 } 8252 8253 mSuggestionViews[viewIndex] = viewGroup; 8254 } 8255 8256 return viewGroup; 8257 } 8258 8259 public void show() { 8260 if (!(mText instanceof Editable)) return; 8261 8262 final int pos = TextView.this.getSelectionStart(); 8263 Spannable spannable = (Spannable)TextView.this.mText; 8264 SuggestionSpan[] suggestionSpans = spannable.getSpans(pos, pos, SuggestionSpan.class); 8265 final int nbSpans = suggestionSpans.length; 8266 8267 ViewGroup viewGroup = getViewGroup(true); 8268 mContainer.setContentView(viewGroup); 8269 8270 int totalNbSuggestions = 0; 8271 int spanUnionStart = mText.length(); 8272 int spanUnionEnd = 0; 8273 8274 for (int spanIndex = 0; spanIndex < nbSpans; spanIndex++) { 8275 SuggestionSpan suggestionSpan = suggestionSpans[spanIndex]; 8276 final int spanStart = spannable.getSpanStart(suggestionSpan); 8277 final int spanEnd = spannable.getSpanEnd(suggestionSpan); 8278 spanUnionStart = Math.min(spanStart, spanUnionStart); 8279 spanUnionEnd = Math.max(spanEnd, spanUnionEnd); 8280 8281 String[] suggestions = suggestionSpan.getSuggestions(); 8282 int nbSuggestions = suggestions.length; 8283 for (int suggestionIndex = 0; suggestionIndex < nbSuggestions; suggestionIndex++) { 8284 TextView textView = (TextView) viewGroup.getChildAt(totalNbSuggestions); 8285 textView.setText(suggestions[suggestionIndex]); 8286 SuggestionInfo suggestionInfo = (SuggestionInfo) textView.getTag(); 8287 suggestionInfo.spanStart = spanStart; 8288 suggestionInfo.spanEnd = spanEnd; 8289 8290 totalNbSuggestions++; 8291 if (totalNbSuggestions > MAX_NUMBER_SUGGESTIONS) { 8292 // Also end outer for loop 8293 spanIndex = nbSpans; 8294 break; 8295 } 8296 } 8297 } 8298 8299 if (totalNbSuggestions == 0) { 8300 // TODO Replace by final text, use a dedicated layout, add a fade out timer... 8301 TextView textView = (TextView) viewGroup.getChildAt(0); 8302 textView.setText("No suggestions available"); 8303 SuggestionInfo suggestionInfo = (SuggestionInfo) textView.getTag(); 8304 suggestionInfo.spanStart = NO_SUGGESTIONS; 8305 totalNbSuggestions++; 8306 } else { 8307 if (mSuggestionRangeSpan == null) mSuggestionRangeSpan = new SuggestionRangeSpan(); 8308 ((Editable) mText).setSpan(mSuggestionRangeSpan, spanUnionStart, spanUnionEnd, 8309 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 8310 8311 for (int i = 0; i < totalNbSuggestions; i++) { 8312 final TextView textView = (TextView) viewGroup.getChildAt(i); 8313 highlightTextDifferences(textView, spanUnionStart, spanUnionEnd); 8314 } 8315 } 8316 8317 for (int i = 0; i < MAX_NUMBER_SUGGESTIONS; i++) { 8318 viewGroup.getChildAt(i).setVisibility(i < totalNbSuggestions ? VISIBLE : GONE); 8319 } 8320 8321 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8322 viewGroup.measure(size, size); 8323 8324 positionAtCursor(); 8325 } 8326 8327 private long[] getWordLimits(CharSequence text) { 8328 if (mWordIterator == null) mWordIterator = new WordIterator(); // TODO locale 8329 mWordIterator.setCharSequence(text); 8330 8331 // First pass will simply count the number of words to be able to create an array 8332 // Not too expensive since previous break positions are cached by the BreakIterator 8333 int nbWords = 0; 8334 int position = mWordIterator.following(0); 8335 while (position != BreakIterator.DONE) { 8336 nbWords++; 8337 position = mWordIterator.following(position); 8338 } 8339 8340 int index = 0; 8341 long[] result = new long[nbWords]; 8342 8343 position = mWordIterator.following(0); 8344 while (position != BreakIterator.DONE) { 8345 int wordStart = mWordIterator.getBeginning(position); 8346 result[index++] = packRangeInLong(wordStart, position); 8347 position = mWordIterator.following(position); 8348 } 8349 8350 return result; 8351 } 8352 8353 private TextAppearanceSpan highlightSpan(int index) { 8354 final int length = mHighlightSpans.length; 8355 if (index < length) { 8356 return mHighlightSpans[index]; 8357 } 8358 8359 // Assumes indexes are requested in sequence: simply append one more item 8360 TextAppearanceSpan[] newArray = new TextAppearanceSpan[length + 1]; 8361 System.arraycopy(mHighlightSpans, 0, newArray, 0, length); 8362 TextAppearanceSpan highlightSpan = new TextAppearanceSpan(mContext, 8363 android.R.style.TextAppearance_SuggestionHighlight); 8364 newArray[length] = highlightSpan; 8365 mHighlightSpans = newArray; 8366 return highlightSpan; 8367 } 8368 8369 private void highlightTextDifferences(TextView textView, int unionStart, int unionEnd) { 8370 SuggestionInfo suggestionInfo = (SuggestionInfo) textView.getTag(); 8371 final int spanStart = suggestionInfo.spanStart; 8372 final int spanEnd = suggestionInfo.spanEnd; 8373 8374 // Remove all text formating by converting to Strings 8375 final String text = textView.getText().toString(); 8376 final String sourceText = mText.subSequence(spanStart, spanEnd).toString(); 8377 8378 long[] sourceWordLimits = getWordLimits(sourceText); 8379 long[] wordLimits = getWordLimits(text); 8380 8381 SpannableStringBuilder ssb = new SpannableStringBuilder(); 8382 // span [spanStart, spanEnd] is included in union [spanUnionStart, int spanUnionEnd] 8383 // The final result is made of 3 parts: the text before, between and after the span 8384 // This is the text before, provided for context 8385 ssb.append(mText.subSequence(unionStart, spanStart).toString()); 8386 8387 // shift is used to offset spans positions wrt span's beginning 8388 final int shift = spanStart - unionStart; 8389 suggestionInfo.suggestionStart = shift; 8390 suggestionInfo.suggestionEnd = shift + text.length(); 8391 8392 // This is the actual suggestion text, which will be highlighted by the following code 8393 ssb.append(text); 8394 8395 String[] words = new String[wordLimits.length]; 8396 for (int i = 0; i < wordLimits.length; i++) { 8397 int wordStart = extractRangeStartFromLong(wordLimits[i]); 8398 int wordEnd = extractRangeEndFromLong(wordLimits[i]); 8399 words[i] = text.substring(wordStart, wordEnd); 8400 } 8401 8402 // Highlighted word algorithm is bases on word matching between source and text 8403 // Matching words are found from left to right. TODO: change for RTL languages 8404 // Characters between matching words are highlighted 8405 int previousCommonWordIndex = -1; 8406 int nbHighlightSpans = 0; 8407 for (int i = 0; i < sourceWordLimits.length; i++) { 8408 int wordStart = extractRangeStartFromLong(sourceWordLimits[i]); 8409 int wordEnd = extractRangeEndFromLong(sourceWordLimits[i]); 8410 String sourceWord = sourceText.substring(wordStart, wordEnd); 8411 8412 for (int j = previousCommonWordIndex + 1; j < words.length; j++) { 8413 if (sourceWord.equals(words[j])) { 8414 if (j != previousCommonWordIndex + 1) { 8415 int firstDifferentPosition = previousCommonWordIndex < 0 ? 0 : 8416 extractRangeEndFromLong(wordLimits[previousCommonWordIndex]); 8417 int lastDifferentPosition = extractRangeStartFromLong(wordLimits[j]); 8418 ssb.setSpan(highlightSpan(nbHighlightSpans++), 8419 shift + firstDifferentPosition, shift + lastDifferentPosition, 8420 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 8421 } else { 8422 // Compare characters between words 8423 int previousSourceWordEnd = i == 0 ? 0 : 8424 extractRangeEndFromLong(sourceWordLimits[i - 1]); 8425 int sourceWordStart = extractRangeStartFromLong(sourceWordLimits[i]); 8426 String sourceSpaces = sourceText.substring(previousSourceWordEnd, 8427 sourceWordStart); 8428 8429 int previousWordEnd = j == 0 ? 0 : 8430 extractRangeEndFromLong(wordLimits[j - 1]); 8431 int currentWordStart = extractRangeStartFromLong(wordLimits[j]); 8432 String textSpaces = text.substring(previousWordEnd, currentWordStart); 8433 8434 if (!sourceSpaces.equals(textSpaces)) { 8435 ssb.setSpan(highlightSpan(nbHighlightSpans++), 8436 shift + previousWordEnd, shift + currentWordStart, 8437 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 8438 } 8439 } 8440 previousCommonWordIndex = j; 8441 break; 8442 } 8443 } 8444 } 8445 8446 // Finally, compare ends of Strings 8447 if (previousCommonWordIndex < words.length - 1) { 8448 int firstDifferentPosition = previousCommonWordIndex < 0 ? 0 : 8449 extractRangeEndFromLong(wordLimits[previousCommonWordIndex]); 8450 int lastDifferentPosition = textView.length(); 8451 ssb.setSpan(highlightSpan(nbHighlightSpans++), 8452 shift + firstDifferentPosition, shift + lastDifferentPosition, 8453 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 8454 } else { 8455 int lastSourceWordEnd = sourceWordLimits.length == 0 ? 0 : 8456 extractRangeEndFromLong(sourceWordLimits[sourceWordLimits.length - 1]); 8457 String sourceSpaces = sourceText.substring(lastSourceWordEnd, sourceText.length()); 8458 8459 int lastCommonTextWordEnd = previousCommonWordIndex < 0 ? 0 : 8460 extractRangeEndFromLong(wordLimits[previousCommonWordIndex]); 8461 String textSpaces = text.substring(lastCommonTextWordEnd, textView.length()); 8462 8463 if (!sourceSpaces.equals(textSpaces) && textSpaces.length() > 0) { 8464 ssb.setSpan(highlightSpan(nbHighlightSpans++), 8465 shift + lastCommonTextWordEnd, shift + textView.length(), 8466 Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); 8467 } 8468 } 8469 8470 // Final part, text after the current suggestion range. 8471 ssb.append(mText.subSequence(spanEnd, unionEnd).toString()); 8472 textView.setText(ssb); 8473 } 8474 8475 public void hide() { 8476 if ((mText instanceof Editable) && mSuggestionRangeSpan != null) { 8477 ((Editable) mText).removeSpan(mSuggestionRangeSpan); 8478 } 8479 mContainer.dismiss(); 8480 } 8481 8482 @Override 8483 public void onClick(View view) { 8484 if (view instanceof TextView) { 8485 TextView textView = (TextView) view; 8486 SuggestionInfo suggestionInfo = (SuggestionInfo) textView.getTag(); 8487 final int spanStart = suggestionInfo.spanStart; 8488 final int spanEnd = suggestionInfo.spanEnd; 8489 if (spanStart != NO_SUGGESTIONS) { 8490 final int suggestionStart = suggestionInfo.suggestionStart; 8491 final int suggestionEnd = suggestionInfo.suggestionEnd; 8492 final String suggestion = textView.getText().subSequence( 8493 suggestionStart, suggestionEnd).toString(); 8494 ((Editable) mText).replace(spanStart, spanEnd, suggestion); 8495 } 8496 } 8497 hide(); 8498 } 8499 8500 void positionAtCursor() { 8501 View contentView = mContainer.getContentView(); 8502 int width = contentView.getMeasuredWidth(); 8503 int height = contentView.getMeasuredHeight(); 8504 final int offset = TextView.this.getSelectionStart(); 8505 final int line = mLayout.getLineForOffset(offset); 8506 final int lineBottom = mLayout.getLineBottom(line); 8507 float primaryHorizontal = mLayout.getPrimaryHorizontal(offset); 8508 8509 final Rect bounds = sCursorControllerTempRect; 8510 bounds.left = (int) (primaryHorizontal - width / 2.0f); 8511 bounds.top = lineBottom; 8512 8513 bounds.right = bounds.left + width; 8514 bounds.bottom = bounds.top + height; 8515 8516 convertFromViewportToContentCoordinates(bounds); 8517 8518 final int[] coords = mTempCoords; 8519 TextView.this.getLocationInWindow(coords); 8520 coords[0] += bounds.left; 8521 coords[1] += bounds.top; 8522 8523 final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics(); 8524 final int screenHeight = displayMetrics.heightPixels; 8525 8526 // Vertical clipping 8527 if (coords[1] + height > screenHeight) { 8528 // Try to position above current line instead 8529 // TODO use top layout instead, reverse suggestion order, 8530 // try full screen vertical down if it still does not fit. TBD with designers. 8531 8532 // Update dimensions from new view 8533 contentView = mContainer.getContentView(); 8534 width = contentView.getMeasuredWidth(); 8535 height = contentView.getMeasuredHeight(); 8536 8537 final int lineTop = mLayout.getLineTop(line); 8538 final int lineHeight = lineBottom - lineTop; 8539 coords[1] -= height + lineHeight; 8540 } 8541 8542 // Horizontal clipping 8543 coords[0] = Math.max(0, coords[0]); 8544 coords[0] = Math.min(displayMetrics.widthPixels - width, coords[0]); 8545 8546 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, coords[0], coords[1]); 8547 } 8548 } 8549 8550 void showSuggestions() { 8551 if (mSuggestionsPopupWindow == null) { 8552 mSuggestionsPopupWindow = new SuggestionsPopupWindow(); 8553 } 8554 hideControllers(); 8555 mSuggestionsPopupWindow.show(); 8556 } 8557 8558 void hideSuggestions() { 8559 if (mSuggestionsPopupWindow != null) { 8560 mSuggestionsPopupWindow.hide(); 8561 } 8562 } 8563 8564 /** 8565 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 8566 * selection is initiated in this View. 8567 * 8568 * The standard implementation populates the menu with a subset of Select All, Cut, Copy and 8569 * Paste actions, depending on what this View supports. 8570 * 8571 * A custom implementation can add new entries in the default menu in its 8572 * {@link ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The default actions 8573 * can also be removed from the menu using {@link Menu#removeItem(int)} and passing 8574 * {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy} or 8575 * {@link android.R.id#paste} ids as parameters. 8576 * 8577 * Returning false from {@link ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will 8578 * prevent the action mode from being started. 8579 * 8580 * Action click events should be handled by the custom implementation of 8581 * {@link ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}. 8582 * 8583 * Note that text selection mode is not started when a TextView receives focus and the 8584 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 8585 * that case, to allow for quick replacement. 8586 */ 8587 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 8588 mCustomSelectionActionModeCallback = actionModeCallback; 8589 } 8590 8591 /** 8592 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 8593 * 8594 * @return The current custom selection callback. 8595 */ 8596 public ActionMode.Callback getCustomSelectionActionModeCallback() { 8597 return mCustomSelectionActionModeCallback; 8598 } 8599 8600 /** 8601 * 8602 * @return true if the selection mode was actually started. 8603 */ 8604 private boolean startSelectionActionMode() { 8605 if (mSelectionActionMode != null) { 8606 // Selection action mode is already started 8607 return false; 8608 } 8609 8610 if (!canSelectText() || !requestFocus()) { 8611 Log.w(LOG_TAG, "TextView does not support text selection. Action mode cancelled."); 8612 return false; 8613 } 8614 8615 boolean currentWordSelected = selectCurrentWord(); 8616 if (!currentWordSelected) { 8617 // No word found under cursor or text selection not permitted. 8618 return false; 8619 } 8620 8621 ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); 8622 mSelectionActionMode = startActionMode(actionModeCallback); 8623 final boolean selectionStarted = mSelectionActionMode != null; 8624 8625 if (selectionStarted && !mTextIsSelectable) { 8626 // Show the IME to be able to replace text, except when selecting non editable text. 8627 final InputMethodManager imm = InputMethodManager.peekInstance(); 8628 if (imm != null) imm.showSoftInput(this, 0, null); 8629 } 8630 8631 return selectionStarted; 8632 } 8633 8634 private void stopSelectionActionMode() { 8635 if (mSelectionActionMode != null) { 8636 // This will hide the mSelectionModifierCursorController 8637 mSelectionActionMode.finish(); 8638 } 8639 } 8640 8641 /** 8642 * Paste clipboard content between min and max positions. 8643 */ 8644 private void paste(int min, int max) { 8645 ClipboardManager clipboard = 8646 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 8647 ClipData clip = clipboard.getPrimaryClip(); 8648 if (clip != null) { 8649 boolean didFirst = false; 8650 for (int i=0; i<clip.getItemCount(); i++) { 8651 CharSequence paste = clip.getItemAt(i).coerceToText(getContext()); 8652 if (paste != null) { 8653 if (!didFirst) { 8654 long minMax = prepareSpacesAroundPaste(min, max, paste); 8655 min = extractRangeStartFromLong(minMax); 8656 max = extractRangeEndFromLong(minMax); 8657 Selection.setSelection((Spannable) mText, max); 8658 ((Editable) mText).replace(min, max, paste); 8659 didFirst = true; 8660 } else { 8661 ((Editable) mText).insert(getSelectionEnd(), "\n"); 8662 ((Editable) mText).insert(getSelectionEnd(), paste); 8663 } 8664 } 8665 } 8666 stopSelectionActionMode(); 8667 sLastCutOrCopyTime = 0; 8668 } 8669 } 8670 8671 private void setPrimaryClip(ClipData clip) { 8672 ClipboardManager clipboard = (ClipboardManager) getContext(). 8673 getSystemService(Context.CLIPBOARD_SERVICE); 8674 clipboard.setPrimaryClip(clip); 8675 sLastCutOrCopyTime = SystemClock.uptimeMillis(); 8676 } 8677 8678 /** 8679 * An ActionMode Callback class that is used to provide actions while in text selection mode. 8680 * 8681 * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending 8682 * on which of these this TextView supports. 8683 */ 8684 private class SelectionActionModeCallback implements ActionMode.Callback { 8685 8686 @Override 8687 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 8688 TypedArray styledAttributes = mContext.obtainStyledAttributes(R.styleable.Theme); 8689 8690 mode.setTitle(mContext.getString(com.android.internal.R.string.textSelectionCABTitle)); 8691 mode.setSubtitle(null); 8692 8693 menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 8694 setAlphabeticShortcut('a'). 8695 setShowAsAction( 8696 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8697 8698 if (canCut()) { 8699 menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut). 8700 setIcon(styledAttributes.getResourceId( 8701 R.styleable.Theme_actionModeCutDrawable, 0)). 8702 setAlphabeticShortcut('x'). 8703 setShowAsAction( 8704 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8705 } 8706 8707 if (canCopy()) { 8708 menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy). 8709 setIcon(styledAttributes.getResourceId( 8710 R.styleable.Theme_actionModeCopyDrawable, 0)). 8711 setAlphabeticShortcut('c'). 8712 setShowAsAction( 8713 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8714 } 8715 8716 if (canPaste()) { 8717 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 8718 setIcon(styledAttributes.getResourceId( 8719 R.styleable.Theme_actionModePasteDrawable, 0)). 8720 setAlphabeticShortcut('v'). 8721 setShowAsAction( 8722 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8723 } 8724 8725 styledAttributes.recycle(); 8726 8727 if (mCustomSelectionActionModeCallback != null) { 8728 if (!mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) { 8729 // The custom mode can choose to cancel the action mode 8730 return false; 8731 } 8732 } 8733 8734 if (menu.hasVisibleItems() || mode.getCustomView() != null) { 8735 getSelectionController().show(); 8736 return true; 8737 } else { 8738 return false; 8739 } 8740 } 8741 8742 @Override 8743 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 8744 if (mCustomSelectionActionModeCallback != null) { 8745 return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); 8746 } 8747 return true; 8748 } 8749 8750 @Override 8751 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 8752 if (mCustomSelectionActionModeCallback != null && 8753 mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { 8754 return true; 8755 } 8756 return onTextContextMenuItem(item.getItemId()); 8757 } 8758 8759 @Override 8760 public void onDestroyActionMode(ActionMode mode) { 8761 if (mCustomSelectionActionModeCallback != null) { 8762 mCustomSelectionActionModeCallback.onDestroyActionMode(mode); 8763 } 8764 Selection.setSelection((Spannable) mText, getSelectionEnd()); 8765 8766 if (mSelectionModifierCursorController != null) { 8767 mSelectionModifierCursorController.hide(); 8768 } 8769 8770 mSelectionActionMode = null; 8771 } 8772 } 8773 8774 private class PastePopupWindow implements OnClickListener { 8775 private final PopupWindow mContainer; 8776 private final View[] mPasteViews = new View[4]; 8777 private final int[] mPasteViewLayouts = new int[] { 8778 mTextEditPasteWindowLayout, mTextEditNoPasteWindowLayout, 8779 mTextEditSidePasteWindowLayout, mTextEditSideNoPasteWindowLayout }; 8780 8781 public PastePopupWindow() { 8782 mContainer = new PopupWindow(TextView.this.mContext, null, 8783 com.android.internal.R.attr.textSelectHandleWindowStyle); 8784 mContainer.setSplitTouchEnabled(true); 8785 mContainer.setClippingEnabled(false); 8786 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8787 8788 mContainer.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 8789 mContainer.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 8790 } 8791 8792 private int viewIndex(boolean onTop) { 8793 return (onTop ? 0 : 1<<1) + (canPaste() ? 0 : 1<<0); 8794 } 8795 8796 private void updateContent(boolean onTop) { 8797 final int viewIndex = viewIndex(onTop); 8798 View view = mPasteViews[viewIndex]; 8799 8800 if (view == null) { 8801 final int layout = mPasteViewLayouts[viewIndex]; 8802 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 8803 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 8804 if (inflater != null) { 8805 view = inflater.inflate(layout, null); 8806 } 8807 8808 if (view == null) { 8809 throw new IllegalArgumentException("Unable to inflate TextEdit paste window"); 8810 } 8811 8812 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8813 view.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 8814 ViewGroup.LayoutParams.WRAP_CONTENT)); 8815 view.measure(size, size); 8816 8817 view.setOnClickListener(this); 8818 8819 mPasteViews[viewIndex] = view; 8820 } 8821 8822 mContainer.setContentView(view); 8823 } 8824 8825 public void show() { 8826 updateContent(true); 8827 positionAtCursor(); 8828 } 8829 8830 public void hide() { 8831 mContainer.dismiss(); 8832 } 8833 8834 public boolean isShowing() { 8835 return mContainer.isShowing(); 8836 } 8837 8838 @Override 8839 public void onClick(View v) { 8840 if (canPaste()) { 8841 paste(getSelectionStart(), getSelectionEnd()); 8842 } 8843 hide(); 8844 } 8845 8846 void positionAtCursor() { 8847 View contentView = mContainer.getContentView(); 8848 int width = contentView.getMeasuredWidth(); 8849 int height = contentView.getMeasuredHeight(); 8850 final int offset = TextView.this.getSelectionStart(); 8851 final int line = mLayout.getLineForOffset(offset); 8852 final int lineTop = mLayout.getLineTop(line); 8853 float primaryHorizontal = mLayout.getPrimaryHorizontal(offset); 8854 8855 final Rect bounds = sCursorControllerTempRect; 8856 bounds.left = (int) (primaryHorizontal - width / 2.0f); 8857 bounds.top = lineTop - height; 8858 8859 bounds.right = bounds.left + width; 8860 bounds.bottom = bounds.top + height; 8861 8862 convertFromViewportToContentCoordinates(bounds); 8863 8864 final int[] coords = mTempCoords; 8865 TextView.this.getLocationInWindow(coords); 8866 coords[0] += bounds.left; 8867 coords[1] += bounds.top; 8868 8869 final int screenWidth = mContext.getResources().getDisplayMetrics().widthPixels; 8870 if (coords[1] < 0) { 8871 updateContent(false); 8872 // Update dimensions from new view 8873 contentView = mContainer.getContentView(); 8874 width = contentView.getMeasuredWidth(); 8875 height = contentView.getMeasuredHeight(); 8876 8877 // Vertical clipping, move under edited line and to the side of insertion cursor 8878 // TODO bottom clipping in case there is no system bar 8879 coords[1] += height; 8880 final int lineBottom = mLayout.getLineBottom(line); 8881 final int lineHeight = lineBottom - lineTop; 8882 coords[1] += lineHeight; 8883 8884 // Move to right hand side of insertion cursor by default. TODO RTL text. 8885 final Drawable handle = mContext.getResources().getDrawable(mTextSelectHandleRes); 8886 final int handleHalfWidth = handle.getIntrinsicWidth() / 2; 8887 8888 if (primaryHorizontal + handleHalfWidth + width < screenWidth) { 8889 coords[0] += handleHalfWidth + width / 2; 8890 } else { 8891 coords[0] -= handleHalfWidth + width / 2; 8892 } 8893 } else { 8894 // Horizontal clipping 8895 coords[0] = Math.max(0, coords[0]); 8896 coords[0] = Math.min(screenWidth - width, coords[0]); 8897 } 8898 8899 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, coords[0], coords[1]); 8900 } 8901 } 8902 8903 private abstract class HandleView extends View implements ViewTreeObserver.OnPreDrawListener { 8904 protected Drawable mDrawable; 8905 private final PopupWindow mContainer; 8906 // Position with respect to the parent TextView 8907 private int mPositionX, mPositionY; 8908 private boolean mIsDragging; 8909 // Offset from touch position to mPosition 8910 private float mTouchToWindowOffsetX, mTouchToWindowOffsetY; 8911 protected float mHotspotX; 8912 // Offsets the hotspot point up, so that cursor is not hidden by the finger when moving up 8913 private float mTouchOffsetY; 8914 // Where the touch position should be on the handle to ensure a maximum cursor visibility 8915 private float mIdealVerticalOffset; 8916 // Parent's (TextView) previous position in window 8917 private int mLastParentX, mLastParentY; 8918 // PopupWindow container absolute position with respect to the enclosing window 8919 private int mContainerPositionX, mContainerPositionY; 8920 // Visible or not (scrolled off screen), whether or not this handle should be visible 8921 private boolean mIsActive = false; 8922 8923 public HandleView() { 8924 super(TextView.this.mContext); 8925 mContainer = new PopupWindow(TextView.this.mContext, null, 8926 com.android.internal.R.attr.textSelectHandleWindowStyle); 8927 mContainer.setSplitTouchEnabled(true); 8928 mContainer.setClippingEnabled(false); 8929 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8930 mContainer.setContentView(this); 8931 8932 initDrawable(); 8933 8934 final int handleHeight = mDrawable.getIntrinsicHeight(); 8935 mTouchOffsetY = -0.3f * handleHeight; 8936 mIdealVerticalOffset = 0.7f * handleHeight; 8937 } 8938 8939 protected abstract void initDrawable(); 8940 8941 // Touch-up filter: number of previous positions remembered 8942 private static final int HISTORY_SIZE = 5; 8943 private static final int TOUCH_UP_FILTER_DELAY_AFTER = 150; 8944 private static final int TOUCH_UP_FILTER_DELAY_BEFORE = 350; 8945 private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; 8946 private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; 8947 private int mPreviousOffsetIndex = 0; 8948 private int mNumberPreviousOffsets = 0; 8949 8950 private void startTouchUpFilter(int offset) { 8951 mNumberPreviousOffsets = 0; 8952 addPositionToTouchUpFilter(offset); 8953 } 8954 8955 private void addPositionToTouchUpFilter(int offset) { 8956 if (mNumberPreviousOffsets > 0 && 8957 mPreviousOffsets[mPreviousOffsetIndex] == offset) { 8958 // Make sure only actual changes of position are recorded. 8959 return; 8960 } 8961 8962 mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; 8963 mPreviousOffsets[mPreviousOffsetIndex] = offset; 8964 mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); 8965 mNumberPreviousOffsets++; 8966 } 8967 8968 private void filterOnTouchUp() { 8969 final long now = SystemClock.uptimeMillis(); 8970 int i = 0; 8971 int index = mPreviousOffsetIndex; 8972 final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); 8973 while (i < iMax && (now - mPreviousOffsetsTimes[index]) < TOUCH_UP_FILTER_DELAY_AFTER) { 8974 i++; 8975 index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; 8976 } 8977 8978 if (i > 0 && i < iMax && 8979 (now - mPreviousOffsetsTimes[index]) > TOUCH_UP_FILTER_DELAY_BEFORE) { 8980 updateOffset(mPreviousOffsets[index]); 8981 } 8982 } 8983 8984 @Override 8985 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 8986 setMeasuredDimension(mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight()); 8987 } 8988 8989 public void show() { 8990 if (isShowing()) { 8991 mContainer.update(mContainerPositionX, mContainerPositionY, 8992 mRight - mLeft, mBottom - mTop); 8993 } else { 8994 mContainer.showAtLocation(TextView.this, 0, 8995 mContainerPositionX, mContainerPositionY); 8996 8997 mIsActive = true; 8998 8999 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9000 vto.addOnPreDrawListener(this); 9001 } 9002 } 9003 9004 protected void dismiss() { 9005 mIsDragging = false; 9006 mContainer.dismiss(); 9007 } 9008 9009 public void hide() { 9010 dismiss(); 9011 9012 mIsActive = false; 9013 9014 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 9015 vto.removeOnPreDrawListener(this); 9016 } 9017 9018 public boolean isShowing() { 9019 return mContainer.isShowing(); 9020 } 9021 9022 private boolean isPositionVisible() { 9023 // Always show a dragging handle. 9024 if (mIsDragging) { 9025 return true; 9026 } 9027 9028 if (isInBatchEditMode()) { 9029 return false; 9030 } 9031 9032 final int extendedPaddingTop = getExtendedPaddingTop(); 9033 final int extendedPaddingBottom = getExtendedPaddingBottom(); 9034 final int compoundPaddingLeft = getCompoundPaddingLeft(); 9035 final int compoundPaddingRight = getCompoundPaddingRight(); 9036 9037 final TextView textView = TextView.this; 9038 9039 if (mTempRect == null) mTempRect = new Rect(); 9040 final Rect clip = mTempRect; 9041 clip.left = compoundPaddingLeft; 9042 clip.top = extendedPaddingTop; 9043 clip.right = textView.getWidth() - compoundPaddingRight; 9044 clip.bottom = textView.getHeight() - extendedPaddingBottom; 9045 9046 final ViewParent parent = textView.getParent(); 9047 if (parent == null || !parent.getChildVisibleRect(textView, clip, null)) { 9048 return false; 9049 } 9050 9051 final int[] coords = mTempCoords; 9052 textView.getLocationInWindow(coords); 9053 final int posX = coords[0] + mPositionX + (int) mHotspotX; 9054 final int posY = coords[1] + mPositionY; 9055 9056 // Offset by 1 to take into account 0.5 and int rounding around getPrimaryHorizontal. 9057 return posX >= clip.left - 1 && posX <= clip.right + 1 && 9058 posY >= clip.top && posY <= clip.bottom; 9059 } 9060 9061 public abstract int getCurrentCursorOffset(); 9062 9063 public abstract void updateOffset(int offset); 9064 9065 public abstract void updatePosition(int x, int y); 9066 9067 protected void positionAtCursorOffset(int offset) { 9068 addPositionToTouchUpFilter(offset); 9069 final int line = mLayout.getLineForOffset(offset); 9070 final int lineBottom = mLayout.getLineBottom(line); 9071 9072 mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX); 9073 mPositionY = lineBottom; 9074 9075 // Take TextView's padding into account. 9076 mPositionX += viewportToContentHorizontalOffset(); 9077 mPositionY += viewportToContentVerticalOffset(); 9078 } 9079 9080 protected boolean updateContainerPosition() { 9081 positionAtCursorOffset(getCurrentCursorOffset()); 9082 9083 final int previousContainerPositionX = mContainerPositionX; 9084 final int previousContainerPositionY = mContainerPositionY; 9085 9086 TextView.this.getLocationInWindow(mTempCoords); 9087 mContainerPositionX = mTempCoords[0] + mPositionX; 9088 mContainerPositionY = mTempCoords[1] + mPositionY; 9089 9090 return (previousContainerPositionX != mContainerPositionX || 9091 previousContainerPositionY != mContainerPositionY); 9092 } 9093 9094 public boolean onPreDraw() { 9095 if (updateContainerPosition()) { 9096 if (mIsDragging) { 9097 if (mTempCoords[0] != mLastParentX || mTempCoords[1] != mLastParentY) { 9098 mTouchToWindowOffsetX += mTempCoords[0] - mLastParentX; 9099 mTouchToWindowOffsetY += mTempCoords[1] - mLastParentY; 9100 mLastParentX = mTempCoords[0]; 9101 mLastParentY = mTempCoords[1]; 9102 } 9103 } 9104 9105 onHandleMoved(); 9106 9107 if (isPositionVisible()) { 9108 mContainer.update(mContainerPositionX, mContainerPositionY, 9109 mRight - mLeft, mBottom - mTop); 9110 9111 if (mIsActive && !isShowing()) { 9112 show(); 9113 } 9114 } else { 9115 if (isShowing()) { 9116 dismiss(); 9117 } 9118 } 9119 } 9120 return true; 9121 } 9122 9123 @Override 9124 protected void onDraw(Canvas c) { 9125 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 9126 mDrawable.draw(c); 9127 } 9128 9129 @Override 9130 public boolean onTouchEvent(MotionEvent ev) { 9131 switch (ev.getActionMasked()) { 9132 case MotionEvent.ACTION_DOWN: { 9133 startTouchUpFilter(getCurrentCursorOffset()); 9134 mTouchToWindowOffsetX = ev.getRawX() - mPositionX; 9135 mTouchToWindowOffsetY = ev.getRawY() - mPositionY; 9136 9137 final int[] coords = mTempCoords; 9138 TextView.this.getLocationInWindow(coords); 9139 mLastParentX = coords[0]; 9140 mLastParentY = coords[1]; 9141 mIsDragging = true; 9142 break; 9143 } 9144 9145 case MotionEvent.ACTION_MOVE: { 9146 final float rawX = ev.getRawX(); 9147 final float rawY = ev.getRawY(); 9148 9149 // Vertical hysteresis: vertical down movement tends to snap to ideal offset 9150 final float previousVerticalOffset = mTouchToWindowOffsetY - mLastParentY; 9151 final float currentVerticalOffset = rawY - mPositionY - mLastParentY; 9152 float newVerticalOffset; 9153 if (previousVerticalOffset < mIdealVerticalOffset) { 9154 newVerticalOffset = Math.min(currentVerticalOffset, mIdealVerticalOffset); 9155 newVerticalOffset = Math.max(newVerticalOffset, previousVerticalOffset); 9156 } else { 9157 newVerticalOffset = Math.max(currentVerticalOffset, mIdealVerticalOffset); 9158 newVerticalOffset = Math.min(newVerticalOffset, previousVerticalOffset); 9159 } 9160 mTouchToWindowOffsetY = newVerticalOffset + mLastParentY; 9161 9162 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 9163 final float newPosY = rawY - mTouchToWindowOffsetY + mTouchOffsetY; 9164 9165 updatePosition(Math.round(newPosX), Math.round(newPosY)); 9166 break; 9167 } 9168 9169 case MotionEvent.ACTION_UP: 9170 filterOnTouchUp(); 9171 mIsDragging = false; 9172 break; 9173 9174 case MotionEvent.ACTION_CANCEL: 9175 mIsDragging = false; 9176 break; 9177 } 9178 return true; 9179 } 9180 9181 public boolean isDragging() { 9182 return mIsDragging; 9183 } 9184 9185 void onHandleMoved() { 9186 // Does nothing by default 9187 } 9188 9189 public void onDetached() { 9190 // Should be overriden to clean possible Runnable 9191 } 9192 } 9193 9194 private class InsertionHandleView extends HandleView { 9195 private static final int DELAY_BEFORE_FADE_OUT = 4000; 9196 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds 9197 9198 // Used to detect taps on the insertion handle, which will affect the PastePopupWindow 9199 private long mTouchTimer; 9200 private float mDownPositionX, mDownPositionY; 9201 private PastePopupWindow mPastePopupWindow; 9202 private Runnable mHider; 9203 private Runnable mPastePopupShower; 9204 9205 @Override 9206 public void show() { 9207 super.show(); 9208 hideDelayed(); 9209 hidePastePopupWindow(); 9210 } 9211 9212 public void show(int delayBeforePaste) { 9213 show(); 9214 9215 final long durationSinceCutOrCopy = SystemClock.uptimeMillis() - sLastCutOrCopyTime; 9216 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 9217 delayBeforePaste = 0; 9218 } 9219 if (delayBeforePaste == 0 || canPaste()) { 9220 if (mPastePopupShower == null) { 9221 mPastePopupShower = new Runnable() { 9222 public void run() { 9223 showPastePopupWindow(); 9224 } 9225 }; 9226 } 9227 TextView.this.postDelayed(mPastePopupShower, delayBeforePaste); 9228 } 9229 } 9230 9231 @Override 9232 protected void dismiss() { 9233 super.dismiss(); 9234 onDetached(); 9235 } 9236 9237 private void hideDelayed() { 9238 removeHiderCallback(); 9239 if (mHider == null) { 9240 mHider = new Runnable() { 9241 public void run() { 9242 hide(); 9243 } 9244 }; 9245 } 9246 TextView.this.postDelayed(mHider, DELAY_BEFORE_FADE_OUT); 9247 } 9248 9249 private void removeHiderCallback() { 9250 if (mHider != null) { 9251 TextView.this.removeCallbacks(mHider); 9252 } 9253 } 9254 9255 @Override 9256 protected void initDrawable() { 9257 if (mSelectHandleCenter == null) { 9258 mSelectHandleCenter = mContext.getResources().getDrawable( 9259 mTextSelectHandleRes); 9260 } 9261 mDrawable = mSelectHandleCenter; 9262 mHotspotX = mDrawable.getIntrinsicWidth() / 2.0f; 9263 } 9264 9265 @Override 9266 public boolean onTouchEvent(MotionEvent ev) { 9267 final boolean result = super.onTouchEvent(ev); 9268 9269 switch (ev.getActionMasked()) { 9270 case MotionEvent.ACTION_DOWN: 9271 mDownPositionX = ev.getRawX(); 9272 mDownPositionY = ev.getRawY(); 9273 mTouchTimer = SystemClock.uptimeMillis(); 9274 break; 9275 9276 case MotionEvent.ACTION_UP: 9277 long delay = SystemClock.uptimeMillis() - mTouchTimer; 9278 if (delay < ViewConfiguration.getTapTimeout()) { 9279 final float deltaX = mDownPositionX - ev.getRawX(); 9280 final float deltaY = mDownPositionY - ev.getRawY(); 9281 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 9282 if (distanceSquared < mSquaredTouchSlopDistance) { 9283 if (mPastePopupWindow != null && mPastePopupWindow.isShowing()) { 9284 // Tapping on the handle dismisses the displayed paste view, 9285 mPastePopupWindow.hide(); 9286 } else { 9287 show(0); 9288 } 9289 } 9290 } 9291 hideDelayed(); 9292 break; 9293 9294 case MotionEvent.ACTION_CANCEL: 9295 hideDelayed(); 9296 break; 9297 9298 default: 9299 break; 9300 } 9301 9302 return result; 9303 } 9304 9305 @Override 9306 public int getCurrentCursorOffset() { 9307 return TextView.this.getSelectionStart(); 9308 } 9309 9310 @Override 9311 public void updateOffset(int offset) { 9312 Selection.setSelection((Spannable) mText, offset); 9313 } 9314 9315 @Override 9316 public void updatePosition(int x, int y) { 9317 updateOffset(getOffset(x, y)); 9318 } 9319 9320 void showPastePopupWindow() { 9321 if (mPastePopupWindow == null) { 9322 mPastePopupWindow = new PastePopupWindow(); 9323 } 9324 mPastePopupWindow.show(); 9325 } 9326 9327 @Override 9328 void onHandleMoved() { 9329 removeHiderCallback(); 9330 hidePastePopupWindow(); 9331 } 9332 9333 void hidePastePopupWindow() { 9334 if (mPastePopupShower != null) { 9335 TextView.this.removeCallbacks(mPastePopupShower); 9336 } 9337 if (mPastePopupWindow != null) { 9338 mPastePopupWindow.hide(); 9339 } 9340 } 9341 9342 @Override 9343 public void onDetached() { 9344 removeHiderCallback(); 9345 hidePastePopupWindow(); 9346 } 9347 } 9348 9349 private class SelectionStartHandleView extends HandleView { 9350 @Override 9351 protected void initDrawable() { 9352 if (mSelectHandleLeft == null) { 9353 mSelectHandleLeft = mContext.getResources().getDrawable( 9354 mTextSelectHandleLeftRes); 9355 } 9356 mDrawable = mSelectHandleLeft; 9357 mHotspotX = mDrawable.getIntrinsicWidth() * 3.0f / 4.0f; 9358 } 9359 9360 @Override 9361 public int getCurrentCursorOffset() { 9362 return TextView.this.getSelectionStart(); 9363 } 9364 9365 @Override 9366 public void updateOffset(int offset) { 9367 Selection.setSelection((Spannable) mText, offset, getSelectionEnd()); 9368 } 9369 9370 @Override 9371 public void updatePosition(int x, int y) { 9372 final int selectionStart = getSelectionStart(); 9373 final int selectionEnd = getSelectionEnd(); 9374 9375 int offset = getOffset(x, y); 9376 9377 // No need to redraw when the offset is unchanged 9378 if (offset == selectionStart) return; 9379 // Handles can not cross and selection is at least one character 9380 if (offset >= selectionEnd) offset = selectionEnd - 1; 9381 9382 Selection.setSelection((Spannable) mText, offset, selectionEnd); 9383 } 9384 } 9385 9386 private class SelectionEndHandleView extends HandleView { 9387 @Override 9388 protected void initDrawable() { 9389 if (mSelectHandleRight == null) { 9390 mSelectHandleRight = mContext.getResources().getDrawable( 9391 mTextSelectHandleRightRes); 9392 } 9393 mDrawable = mSelectHandleRight; 9394 mHotspotX = mDrawable.getIntrinsicWidth() / 4.0f; 9395 } 9396 9397 @Override 9398 public int getCurrentCursorOffset() { 9399 return TextView.this.getSelectionEnd(); 9400 } 9401 9402 @Override 9403 public void updateOffset(int offset) { 9404 Selection.setSelection((Spannable) mText, getSelectionStart(), offset); 9405 } 9406 9407 @Override 9408 public void updatePosition(int x, int y) { 9409 final int selectionStart = getSelectionStart(); 9410 final int selectionEnd = getSelectionEnd(); 9411 9412 int offset = getOffset(x, y); 9413 9414 // No need to redraw when the offset is unchanged 9415 if (offset == selectionEnd) return; 9416 // Handles can not cross and selection is at least one character 9417 if (offset <= selectionStart) offset = selectionStart + 1; 9418 9419 Selection.setSelection((Spannable) mText, selectionStart, offset); 9420 } 9421 } 9422 9423 /** 9424 * A CursorController instance can be used to control a cursor in the text. 9425 * It is not used outside of {@link TextView}. 9426 * @hide 9427 */ 9428 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 9429 /** 9430 * Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}. 9431 * See also {@link #hide()}. 9432 */ 9433 public void show(); 9434 9435 /** 9436 * Hide the cursor controller from screen. 9437 * See also {@link #show()}. 9438 */ 9439 public void hide(); 9440 9441 /** 9442 * This method is called by {@link #onTouchEvent(MotionEvent)} and gives the controller 9443 * a chance to become active and/or visible. 9444 * @param event The touch event 9445 */ 9446 public boolean onTouchEvent(MotionEvent event); 9447 9448 /** 9449 * Called when the view is detached from window. Perform house keeping task, such as 9450 * stopping Runnable thread that would otherwise keep a reference on the context, thus 9451 * preventing the activity from being recycled. 9452 */ 9453 public void onDetached(); 9454 } 9455 9456 private class InsertionPointCursorController implements CursorController { 9457 private static final int DELAY_BEFORE_PASTE = 2000; 9458 9459 private InsertionHandleView mHandle; 9460 9461 public void show() { 9462 ((InsertionHandleView) getHandle()).show(DELAY_BEFORE_PASTE); 9463 } 9464 9465 public void showWithPaste() { 9466 ((InsertionHandleView) getHandle()).show(0); 9467 } 9468 9469 public void hide() { 9470 if (mHandle != null) { 9471 mHandle.hide(); 9472 } 9473 } 9474 9475 public boolean onTouchEvent(MotionEvent ev) { 9476 return false; 9477 } 9478 9479 public void onTouchModeChanged(boolean isInTouchMode) { 9480 if (!isInTouchMode) { 9481 hide(); 9482 } 9483 } 9484 9485 private HandleView getHandle() { 9486 if (mHandle == null) { 9487 mHandle = new InsertionHandleView(); 9488 } 9489 return mHandle; 9490 } 9491 9492 @Override 9493 public void onDetached() { 9494 final ViewTreeObserver observer = getViewTreeObserver(); 9495 observer.removeOnTouchModeChangeListener(this); 9496 9497 if (mHandle != null) mHandle.onDetached(); 9498 } 9499 } 9500 9501 private class SelectionModifierCursorController implements CursorController { 9502 // The cursor controller handles, lazily created when shown. 9503 private SelectionStartHandleView mStartHandle; 9504 private SelectionEndHandleView mEndHandle; 9505 // The offsets of that last touch down event. Remembered to start selection there. 9506 private int mMinTouchOffset, mMaxTouchOffset; 9507 9508 // Double tap detection 9509 private long mPreviousTapUpTime = 0; 9510 private int mPreviousTapPositionX, mPreviousTapPositionY; 9511 9512 SelectionModifierCursorController() { 9513 resetTouchOffsets(); 9514 } 9515 9516 public void show() { 9517 if (isInBatchEditMode()) { 9518 return; 9519 } 9520 9521 // Lazy object creation has to be done before updatePosition() is called. 9522 if (mStartHandle == null) mStartHandle = new SelectionStartHandleView(); 9523 if (mEndHandle == null) mEndHandle = new SelectionEndHandleView(); 9524 9525 mStartHandle.show(); 9526 mEndHandle.show(); 9527 9528 hideInsertionPointCursorController(); 9529 hideSuggestions(); 9530 } 9531 9532 public void hide() { 9533 if (mStartHandle != null) mStartHandle.hide(); 9534 if (mEndHandle != null) mEndHandle.hide(); 9535 } 9536 9537 public boolean onTouchEvent(MotionEvent event) { 9538 // This is done even when the View does not have focus, so that long presses can start 9539 // selection and tap can move cursor from this tap position. 9540 if (isTextEditable() || mTextIsSelectable) { 9541 switch (event.getActionMasked()) { 9542 case MotionEvent.ACTION_DOWN: 9543 final int x = (int) event.getX(); 9544 final int y = (int) event.getY(); 9545 9546 // Remember finger down position, to be able to start selection from there 9547 mMinTouchOffset = mMaxTouchOffset = getOffset(x, y); 9548 9549 // Double tap detection 9550 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 9551 if (duration <= ViewConfiguration.getDoubleTapTimeout() && 9552 isPositionOnText(x, y)) { 9553 final int deltaX = x - mPreviousTapPositionX; 9554 final int deltaY = y - mPreviousTapPositionY; 9555 final int distanceSquared = deltaX * deltaX + deltaY * deltaY; 9556 if (distanceSquared < mSquaredTouchSlopDistance) { 9557 showSuggestions(); 9558 mDiscardNextActionUp = true; 9559 } 9560 } 9561 9562 mPreviousTapPositionX = x; 9563 mPreviousTapPositionY = y; 9564 9565 break; 9566 9567 case MotionEvent.ACTION_POINTER_DOWN: 9568 case MotionEvent.ACTION_POINTER_UP: 9569 // Handle multi-point gestures. Keep min and max offset positions. 9570 // Only activated for devices that correctly handle multi-touch. 9571 if (mContext.getPackageManager().hasSystemFeature( 9572 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 9573 updateMinAndMaxOffsets(event); 9574 } 9575 break; 9576 9577 case MotionEvent.ACTION_UP: 9578 mPreviousTapUpTime = SystemClock.uptimeMillis(); 9579 break; 9580 } 9581 } 9582 return false; 9583 } 9584 9585 /** 9586 * @param event 9587 */ 9588 private void updateMinAndMaxOffsets(MotionEvent event) { 9589 int pointerCount = event.getPointerCount(); 9590 for (int index = 0; index < pointerCount; index++) { 9591 final int x = (int) event.getX(index); 9592 final int y = (int) event.getY(index); 9593 int offset = getOffset(x, y); 9594 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 9595 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 9596 } 9597 } 9598 9599 public int getMinTouchOffset() { 9600 return mMinTouchOffset; 9601 } 9602 9603 public int getMaxTouchOffset() { 9604 return mMaxTouchOffset; 9605 } 9606 9607 public void resetTouchOffsets() { 9608 mMinTouchOffset = mMaxTouchOffset = -1; 9609 } 9610 9611 /** 9612 * @return true iff this controller is currently used to move the selection start. 9613 */ 9614 public boolean isSelectionStartDragged() { 9615 return mStartHandle != null && mStartHandle.isDragging(); 9616 } 9617 9618 public void onTouchModeChanged(boolean isInTouchMode) { 9619 if (!isInTouchMode) { 9620 hide(); 9621 } 9622 } 9623 9624 @Override 9625 public void onDetached() { 9626 final ViewTreeObserver observer = getViewTreeObserver(); 9627 observer.removeOnTouchModeChangeListener(this); 9628 9629 if (mStartHandle != null) mStartHandle.onDetached(); 9630 if (mEndHandle != null) mEndHandle.onDetached(); 9631 } 9632 } 9633 9634 private void hideInsertionPointCursorController() { 9635 // No need to create the controller to hide it. 9636 if (mInsertionPointCursorController != null) { 9637 mInsertionPointCursorController.hide(); 9638 } 9639 } 9640 9641 /** 9642 * Hides the insertion controller and stops text selection mode, hiding the selection controller 9643 */ 9644 private void hideControllers() { 9645 hideInsertionPointCursorController(); 9646 stopSelectionActionMode(); 9647 hideSuggestions(); 9648 } 9649 9650 /** 9651 * Get the offset character closest to the specified absolute position. 9652 * 9653 * @param x The horizontal absolute position of a point on screen 9654 * @param y The vertical absolute position of a point on screen 9655 * @return the character offset for the character whose position is closest to the specified 9656 * position. Returns -1 if there is no layout. 9657 * 9658 * @hide 9659 */ 9660 public int getOffset(int x, int y) { 9661 if (getLayout() == null) return -1; 9662 final int line = getLineAtCoordinate(y); 9663 final int offset = getOffsetAtCoordinate(line, x); 9664 return offset; 9665 } 9666 9667 private int convertToLocalHorizontalCoordinate(int x) { 9668 x -= getTotalPaddingLeft(); 9669 // Clamp the position to inside of the view. 9670 x = Math.max(0, x); 9671 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 9672 x += getScrollX(); 9673 return x; 9674 } 9675 9676 private int getLineAtCoordinate(int y) { 9677 y -= getTotalPaddingTop(); 9678 // Clamp the position to inside of the view. 9679 y = Math.max(0, y); 9680 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 9681 y += getScrollY(); 9682 return getLayout().getLineForVertical(y); 9683 } 9684 9685 private int getOffsetAtCoordinate(int line, int x) { 9686 x = convertToLocalHorizontalCoordinate(x); 9687 return getLayout().getOffsetForHorizontal(line, x); 9688 } 9689 9690 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 9691 * in the view. Returns false when the position is in the empty space of left/right of text. 9692 */ 9693 private boolean isPositionOnText(int x, int y) { 9694 if (getLayout() == null) return false; 9695 9696 final int line = getLineAtCoordinate(y); 9697 x = convertToLocalHorizontalCoordinate(x); 9698 9699 if (x < getLayout().getLineLeft(line)) return false; 9700 if (x > getLayout().getLineRight(line)) return false; 9701 return true; 9702 } 9703 9704 @Override 9705 public boolean onDragEvent(DragEvent event) { 9706 switch (event.getAction()) { 9707 case DragEvent.ACTION_DRAG_STARTED: 9708 return hasInsertionController(); 9709 9710 case DragEvent.ACTION_DRAG_ENTERED: 9711 TextView.this.requestFocus(); 9712 return true; 9713 9714 case DragEvent.ACTION_DRAG_LOCATION: 9715 final int offset = getOffset((int) event.getX(), (int) event.getY()); 9716 Selection.setSelection((Spannable)mText, offset); 9717 return true; 9718 9719 case DragEvent.ACTION_DROP: 9720 onDrop(event); 9721 return true; 9722 9723 case DragEvent.ACTION_DRAG_ENDED: 9724 case DragEvent.ACTION_DRAG_EXITED: 9725 default: 9726 return true; 9727 } 9728 } 9729 9730 private void onDrop(DragEvent event) { 9731 StringBuilder content = new StringBuilder(""); 9732 ClipData clipData = event.getClipData(); 9733 final int itemCount = clipData.getItemCount(); 9734 for (int i=0; i < itemCount; i++) { 9735 Item item = clipData.getItemAt(i); 9736 content.append(item.coerceToText(TextView.this.mContext)); 9737 } 9738 9739 final int offset = getOffset((int) event.getX(), (int) event.getY()); 9740 9741 Object localState = event.getLocalState(); 9742 DragLocalState dragLocalState = null; 9743 if (localState instanceof DragLocalState) { 9744 dragLocalState = (DragLocalState) localState; 9745 } 9746 boolean dragDropIntoItself = dragLocalState != null && 9747 dragLocalState.sourceTextView == this; 9748 9749 if (dragDropIntoItself) { 9750 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 9751 // A drop inside the original selection discards the drop. 9752 return; 9753 } 9754 } 9755 9756 final int originalLength = mText.length(); 9757 long minMax = prepareSpacesAroundPaste(offset, offset, content); 9758 int min = extractRangeStartFromLong(minMax); 9759 int max = extractRangeEndFromLong(minMax); 9760 9761 Selection.setSelection((Spannable) mText, max); 9762 ((Editable) mText).replace(min, max, content); 9763 9764 if (dragDropIntoItself) { 9765 int dragSourceStart = dragLocalState.start; 9766 int dragSourceEnd = dragLocalState.end; 9767 if (max <= dragSourceStart) { 9768 // Inserting text before selection has shifted positions 9769 final int shift = mText.length() - originalLength; 9770 dragSourceStart += shift; 9771 dragSourceEnd += shift; 9772 } 9773 9774 // Delete original selection 9775 ((Editable) mText).delete(dragSourceStart, dragSourceEnd); 9776 9777 // Make sure we do not leave two adjacent spaces. 9778 if ((dragSourceStart == 0 || 9779 Character.isSpaceChar(mTransformed.charAt(dragSourceStart - 1))) && 9780 (dragSourceStart == mText.length() || 9781 Character.isSpaceChar(mTransformed.charAt(dragSourceStart)))) { 9782 final int pos = dragSourceStart == mText.length() ? 9783 dragSourceStart - 1 : dragSourceStart; 9784 ((Editable) mText).delete(pos, pos + 1); 9785 } 9786 } 9787 } 9788 9789 /** 9790 * @return True if this view supports insertion handles. 9791 */ 9792 boolean hasInsertionController() { 9793 return mInsertionControllerEnabled; 9794 } 9795 9796 /** 9797 * @return True if this view supports selection handles. 9798 */ 9799 boolean hasSelectionController() { 9800 return mSelectionControllerEnabled; 9801 } 9802 9803 InsertionPointCursorController getInsertionController() { 9804 if (!mInsertionControllerEnabled) { 9805 return null; 9806 } 9807 9808 if (mInsertionPointCursorController == null) { 9809 mInsertionPointCursorController = new InsertionPointCursorController(); 9810 9811 final ViewTreeObserver observer = getViewTreeObserver(); 9812 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 9813 } 9814 9815 return mInsertionPointCursorController; 9816 } 9817 9818 SelectionModifierCursorController getSelectionController() { 9819 if (!mSelectionControllerEnabled) { 9820 return null; 9821 } 9822 9823 if (mSelectionModifierCursorController == null) { 9824 mSelectionModifierCursorController = new SelectionModifierCursorController(); 9825 9826 final ViewTreeObserver observer = getViewTreeObserver(); 9827 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 9828 } 9829 9830 return mSelectionModifierCursorController; 9831 } 9832 9833 boolean isInBatchEditMode() { 9834 final InputMethodState ims = mInputMethodState; 9835 if (ims != null) { 9836 return ims.mBatchEditNesting > 0; 9837 } 9838 return mInBatchEditControllers; 9839 } 9840 9841 @ViewDebug.ExportedProperty(category = "text") 9842 private CharSequence mText; 9843 private CharSequence mTransformed; 9844 private BufferType mBufferType = BufferType.NORMAL; 9845 9846 private int mInputType = EditorInfo.TYPE_NULL; 9847 private CharSequence mHint; 9848 private Layout mHintLayout; 9849 9850 private KeyListener mInput; 9851 9852 private MovementMethod mMovement; 9853 private TransformationMethod mTransformation; 9854 private ChangeWatcher mChangeWatcher; 9855 9856 private ArrayList<TextWatcher> mListeners = null; 9857 9858 // display attributes 9859 private final TextPaint mTextPaint; 9860 private boolean mUserSetTextScaleX; 9861 private final Paint mHighlightPaint; 9862 private int mHighlightColor = 0xCC475925; 9863 /** 9864 * This is temporarily visible to fix bug 3085564 in webView. Do not rely on 9865 * this field being protected. Will be restored as private when lineHeight 9866 * feature request 3215097 is implemented 9867 * @hide 9868 */ 9869 protected Layout mLayout; 9870 9871 private long mShowCursor; 9872 private Blink mBlink; 9873 private boolean mCursorVisible = true; 9874 9875 // Cursor Controllers. 9876 private InsertionPointCursorController mInsertionPointCursorController; 9877 private SelectionModifierCursorController mSelectionModifierCursorController; 9878 private ActionMode mSelectionActionMode; 9879 private boolean mInsertionControllerEnabled; 9880 private boolean mSelectionControllerEnabled; 9881 private boolean mInBatchEditControllers; 9882 9883 // These are needed to desambiguate a long click. If the long click comes from ones of these, we 9884 // select from the current cursor position. Otherwise, select from long pressed position. 9885 private boolean mDPadCenterIsDown = false; 9886 private boolean mEnterKeyIsDown = false; 9887 private boolean mContextMenuTriggeredByKey = false; 9888 // Created once and shared by different CursorController helper methods. 9889 // Only one cursor controller is active at any time which prevent race conditions. 9890 private static Rect sCursorControllerTempRect = new Rect(); 9891 9892 private boolean mSelectAllOnFocus = false; 9893 9894 private int mGravity = Gravity.TOP | Gravity.LEFT; 9895 private boolean mHorizontallyScrolling; 9896 9897 private int mAutoLinkMask; 9898 private boolean mLinksClickable = true; 9899 9900 private float mSpacingMult = 1; 9901 private float mSpacingAdd = 0; 9902 private boolean mTextIsSelectable = false; 9903 9904 private static final int LINES = 1; 9905 private static final int EMS = LINES; 9906 private static final int PIXELS = 2; 9907 9908 private int mMaximum = Integer.MAX_VALUE; 9909 private int mMaxMode = LINES; 9910 private int mMinimum = 0; 9911 private int mMinMode = LINES; 9912 9913 private int mMaxWidth = Integer.MAX_VALUE; 9914 private int mMaxWidthMode = PIXELS; 9915 private int mMinWidth = 0; 9916 private int mMinWidthMode = PIXELS; 9917 9918 private boolean mSingleLine; 9919 private int mDesiredHeightAtMeasure = -1; 9920 private boolean mIncludePad = true; 9921 9922 // tmp primitives, so we don't alloc them on each draw 9923 private Path mHighlightPath; 9924 private boolean mHighlightPathBogus = true; 9925 private static final RectF sTempRect = new RectF(); 9926 9927 // XXX should be much larger 9928 private static final int VERY_WIDE = 16384; 9929 9930 private static final int BLINK = 500; 9931 9932 private static final int ANIMATED_SCROLL_GAP = 250; 9933 private long mLastScroll; 9934 private Scroller mScroller = null; 9935 9936 private BoringLayout.Metrics mBoring; 9937 private BoringLayout.Metrics mHintBoring; 9938 9939 private BoringLayout mSavedLayout, mSavedHintLayout; 9940 9941 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 9942 private InputFilter[] mFilters = NO_FILTERS; 9943 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 9944 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 9945 // System wide time for last cut or copy action. 9946 private static long sLastCutOrCopyTime; 9947 // Used to highlight a word when it is corrected by the IME 9948 private CorrectionHighlighter mCorrectionHighlighter; 9949 // New state used to change background based on whether this TextView is multiline. 9950 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 9951} 9952