TextView.java revision 878a5a6cd7109183928b9b8b533f11347fd0591a
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.widget; 18 19import android.R; 20import android.annotation.NonNull; 21import android.annotation.Nullable; 22import android.content.ClipData; 23import android.content.ClipboardManager; 24import android.content.Context; 25import android.content.UndoManager; 26import android.content.res.ColorStateList; 27import android.content.res.CompatibilityInfo; 28import android.content.res.Resources; 29import android.content.res.TypedArray; 30import android.content.res.XmlResourceParser; 31import android.graphics.Canvas; 32import android.graphics.Insets; 33import android.graphics.Paint; 34import android.graphics.Path; 35import android.graphics.Rect; 36import android.graphics.RectF; 37import android.graphics.Typeface; 38import android.graphics.drawable.Drawable; 39import android.inputmethodservice.ExtractEditText; 40import android.os.AsyncTask; 41import android.os.Bundle; 42import android.os.Parcel; 43import android.os.Parcelable; 44import android.os.SystemClock; 45import android.os.UserHandle; 46import android.provider.Settings; 47import android.text.BoringLayout; 48import android.text.DynamicLayout; 49import android.text.Editable; 50import android.text.GetChars; 51import android.text.GraphicsOperations; 52import android.text.InputFilter; 53import android.text.InputType; 54import android.text.Layout; 55import android.text.ParcelableSpan; 56import android.text.Selection; 57import android.text.SpanWatcher; 58import android.text.Spannable; 59import android.text.SpannableString; 60import android.text.SpannableStringBuilder; 61import android.text.Spanned; 62import android.text.SpannedString; 63import android.text.StaticLayout; 64import android.text.TextDirectionHeuristic; 65import android.text.TextDirectionHeuristics; 66import android.text.TextPaint; 67import android.text.TextUtils; 68import android.text.TextUtils.TruncateAt; 69import android.text.TextWatcher; 70import android.text.method.AllCapsTransformationMethod; 71import android.text.method.ArrowKeyMovementMethod; 72import android.text.method.DateKeyListener; 73import android.text.method.DateTimeKeyListener; 74import android.text.method.DialerKeyListener; 75import android.text.method.DigitsKeyListener; 76import android.text.method.KeyListener; 77import android.text.method.LinkMovementMethod; 78import android.text.method.MetaKeyKeyListener; 79import android.text.method.MovementMethod; 80import android.text.method.PasswordTransformationMethod; 81import android.text.method.SingleLineTransformationMethod; 82import android.text.method.TextKeyListener; 83import android.text.method.TimeKeyListener; 84import android.text.method.TransformationMethod; 85import android.text.method.TransformationMethod2; 86import android.text.method.WordIterator; 87import android.text.style.CharacterStyle; 88import android.text.style.ClickableSpan; 89import android.text.style.ParagraphStyle; 90import android.text.style.SpellCheckSpan; 91import android.text.style.SuggestionSpan; 92import android.text.style.URLSpan; 93import android.text.style.UpdateAppearance; 94import android.text.util.Linkify; 95import android.util.AttributeSet; 96import android.util.Log; 97import android.util.TypedValue; 98import android.view.AccessibilityIterators.TextSegmentIterator; 99import android.view.ActionMode; 100import android.view.Choreographer; 101import android.view.DragEvent; 102import android.view.Gravity; 103import android.view.HapticFeedbackConstants; 104import android.view.KeyCharacterMap; 105import android.view.KeyEvent; 106import android.view.Menu; 107import android.view.MenuItem; 108import android.view.MotionEvent; 109import android.view.View; 110import android.view.ViewConfiguration; 111import android.view.ViewDebug; 112import android.view.ViewGroup.LayoutParams; 113import android.view.ViewRootImpl; 114import android.view.ViewTreeObserver; 115import android.view.accessibility.AccessibilityEvent; 116import android.view.accessibility.AccessibilityManager; 117import android.view.accessibility.AccessibilityNodeInfo; 118import android.view.animation.AnimationUtils; 119import android.view.inputmethod.BaseInputConnection; 120import android.view.inputmethod.CompletionInfo; 121import android.view.inputmethod.CorrectionInfo; 122import android.view.inputmethod.EditorInfo; 123import android.view.inputmethod.ExtractedText; 124import android.view.inputmethod.ExtractedTextRequest; 125import android.view.inputmethod.InputConnection; 126import android.view.inputmethod.InputMethodManager; 127import android.view.textservice.SpellCheckerSubtype; 128import android.view.textservice.TextServicesManager; 129import android.widget.RemoteViews.RemoteView; 130 131import com.android.internal.util.FastMath; 132import com.android.internal.widget.EditableInputConnection; 133 134import org.xmlpull.v1.XmlPullParserException; 135 136import java.io.IOException; 137import java.lang.ref.WeakReference; 138import java.util.ArrayList; 139import java.util.Locale; 140 141import static android.os.Build.VERSION_CODES.JELLY_BEAN_MR1; 142 143/** 144 * Displays text to the user and optionally allows them to edit it. A TextView 145 * is a complete text editor, however the basic class is configured to not 146 * allow editing; see {@link EditText} for a subclass that configures the text 147 * view for editing. 148 * 149 * <p> 150 * To allow users to copy some or all of the TextView's value and paste it somewhere else, set the 151 * XML attribute {@link android.R.styleable#TextView_textIsSelectable 152 * android:textIsSelectable} to "true" or call 153 * {@link #setTextIsSelectable setTextIsSelectable(true)}. The {@code textIsSelectable} flag 154 * allows users to make selection gestures in the TextView, which in turn triggers the system's 155 * built-in copy/paste controls. 156 * <p> 157 * <b>XML attributes</b> 158 * <p> 159 * See {@link android.R.styleable#TextView TextView Attributes}, 160 * {@link android.R.styleable#View View Attributes} 161 * 162 * @attr ref android.R.styleable#TextView_text 163 * @attr ref android.R.styleable#TextView_bufferType 164 * @attr ref android.R.styleable#TextView_hint 165 * @attr ref android.R.styleable#TextView_textColor 166 * @attr ref android.R.styleable#TextView_textColorHighlight 167 * @attr ref android.R.styleable#TextView_textColorHint 168 * @attr ref android.R.styleable#TextView_textAppearance 169 * @attr ref android.R.styleable#TextView_textColorLink 170 * @attr ref android.R.styleable#TextView_textSize 171 * @attr ref android.R.styleable#TextView_textScaleX 172 * @attr ref android.R.styleable#TextView_fontFamily 173 * @attr ref android.R.styleable#TextView_typeface 174 * @attr ref android.R.styleable#TextView_textStyle 175 * @attr ref android.R.styleable#TextView_cursorVisible 176 * @attr ref android.R.styleable#TextView_maxLines 177 * @attr ref android.R.styleable#TextView_maxHeight 178 * @attr ref android.R.styleable#TextView_lines 179 * @attr ref android.R.styleable#TextView_height 180 * @attr ref android.R.styleable#TextView_minLines 181 * @attr ref android.R.styleable#TextView_minHeight 182 * @attr ref android.R.styleable#TextView_maxEms 183 * @attr ref android.R.styleable#TextView_maxWidth 184 * @attr ref android.R.styleable#TextView_ems 185 * @attr ref android.R.styleable#TextView_width 186 * @attr ref android.R.styleable#TextView_minEms 187 * @attr ref android.R.styleable#TextView_minWidth 188 * @attr ref android.R.styleable#TextView_gravity 189 * @attr ref android.R.styleable#TextView_scrollHorizontally 190 * @attr ref android.R.styleable#TextView_password 191 * @attr ref android.R.styleable#TextView_singleLine 192 * @attr ref android.R.styleable#TextView_selectAllOnFocus 193 * @attr ref android.R.styleable#TextView_includeFontPadding 194 * @attr ref android.R.styleable#TextView_maxLength 195 * @attr ref android.R.styleable#TextView_shadowColor 196 * @attr ref android.R.styleable#TextView_shadowDx 197 * @attr ref android.R.styleable#TextView_shadowDy 198 * @attr ref android.R.styleable#TextView_shadowRadius 199 * @attr ref android.R.styleable#TextView_autoLink 200 * @attr ref android.R.styleable#TextView_linksClickable 201 * @attr ref android.R.styleable#TextView_numeric 202 * @attr ref android.R.styleable#TextView_digits 203 * @attr ref android.R.styleable#TextView_phoneNumber 204 * @attr ref android.R.styleable#TextView_inputMethod 205 * @attr ref android.R.styleable#TextView_capitalize 206 * @attr ref android.R.styleable#TextView_autoText 207 * @attr ref android.R.styleable#TextView_editable 208 * @attr ref android.R.styleable#TextView_freezesText 209 * @attr ref android.R.styleable#TextView_ellipsize 210 * @attr ref android.R.styleable#TextView_drawableTop 211 * @attr ref android.R.styleable#TextView_drawableBottom 212 * @attr ref android.R.styleable#TextView_drawableRight 213 * @attr ref android.R.styleable#TextView_drawableLeft 214 * @attr ref android.R.styleable#TextView_drawableStart 215 * @attr ref android.R.styleable#TextView_drawableEnd 216 * @attr ref android.R.styleable#TextView_drawablePadding 217 * @attr ref android.R.styleable#TextView_lineSpacingExtra 218 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 219 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 220 * @attr ref android.R.styleable#TextView_inputType 221 * @attr ref android.R.styleable#TextView_imeOptions 222 * @attr ref android.R.styleable#TextView_privateImeOptions 223 * @attr ref android.R.styleable#TextView_imeActionLabel 224 * @attr ref android.R.styleable#TextView_imeActionId 225 * @attr ref android.R.styleable#TextView_editorExtras 226 * @attr ref android.R.styleable#TextView_elegantTextHeight 227 * @attr ref android.R.styleable#TextView_letterSpacing 228 * @attr ref android.R.styleable#TextView_fontFeatureSettings 229 */ 230@RemoteView 231public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 232 static final String LOG_TAG = "TextView"; 233 static final boolean DEBUG_EXTRACT = false; 234 235 // Enum for the "typeface" XML parameter. 236 // TODO: How can we get this from the XML instead of hardcoding it here? 237 private static final int SANS = 1; 238 private static final int SERIF = 2; 239 private static final int MONOSPACE = 3; 240 241 // Bitfield for the "numeric" XML parameter. 242 // TODO: How can we get this from the XML instead of hardcoding it here? 243 private static final int SIGNED = 2; 244 private static final int DECIMAL = 4; 245 246 /** 247 * Draw marquee text with fading edges as usual 248 */ 249 private static final int MARQUEE_FADE_NORMAL = 0; 250 251 /** 252 * Draw marquee text as ellipsize end while inactive instead of with the fade. 253 * (Useful for devices where the fade can be expensive if overdone) 254 */ 255 private static final int MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS = 1; 256 257 /** 258 * Draw marquee text with fading edges because it is currently active/animating. 259 */ 260 private static final int MARQUEE_FADE_SWITCH_SHOW_FADE = 2; 261 262 private static final int LINES = 1; 263 private static final int EMS = LINES; 264 private static final int PIXELS = 2; 265 266 private static final RectF TEMP_RECTF = new RectF(); 267 268 // XXX should be much larger 269 private static final int VERY_WIDE = 1024*1024; 270 private static final int ANIMATED_SCROLL_GAP = 250; 271 272 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 273 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 274 275 private static final int CHANGE_WATCHER_PRIORITY = 100; 276 277 // New state used to change background based on whether this TextView is multiline. 278 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 279 280 // System wide time for last cut or copy action. 281 static long LAST_CUT_OR_COPY_TIME; 282 283 private ColorStateList mTextColor; 284 private ColorStateList mHintTextColor; 285 private ColorStateList mLinkTextColor; 286 @ViewDebug.ExportedProperty(category = "text") 287 private int mCurTextColor; 288 private int mCurHintTextColor; 289 private boolean mFreezesText; 290 private boolean mDispatchTemporaryDetach; 291 292 /** Whether this view is temporarily detached from the parent view. */ 293 boolean mTemporaryDetach; 294 295 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 296 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 297 298 private float mShadowRadius, mShadowDx, mShadowDy; 299 private int mShadowColor; 300 301 302 private boolean mPreDrawRegistered; 303 private boolean mPreDrawListenerDetached; 304 305 // A flag to prevent repeated movements from escaping the enclosing text view. The idea here is 306 // that if a user is holding down a movement key to traverse text, we shouldn't also traverse 307 // the view hierarchy. On the other hand, if the user is using the movement key to traverse views 308 // (i.e. the first movement was to traverse out of this view, or this view was traversed into by 309 // the user holding the movement key down) then we shouldn't prevent the focus from changing. 310 private boolean mPreventDefaultMovement; 311 312 private TextUtils.TruncateAt mEllipsize; 313 314 static class Drawables { 315 final static int DRAWABLE_NONE = -1; 316 final static int DRAWABLE_RIGHT = 0; 317 final static int DRAWABLE_LEFT = 1; 318 319 final Rect mCompoundRect = new Rect(); 320 321 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight, 322 mDrawableStart, mDrawableEnd, mDrawableError, mDrawableTemp; 323 324 Drawable mDrawableLeftInitial, mDrawableRightInitial; 325 boolean mIsRtlCompatibilityMode; 326 boolean mOverride; 327 328 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight, 329 mDrawableSizeStart, mDrawableSizeEnd, mDrawableSizeError, mDrawableSizeTemp; 330 331 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight, 332 mDrawableHeightStart, mDrawableHeightEnd, mDrawableHeightError, mDrawableHeightTemp; 333 334 int mDrawablePadding; 335 336 int mDrawableSaved = DRAWABLE_NONE; 337 338 public Drawables(Context context) { 339 final int targetSdkVersion = context.getApplicationInfo().targetSdkVersion; 340 mIsRtlCompatibilityMode = (targetSdkVersion < JELLY_BEAN_MR1 || 341 !context.getApplicationInfo().hasRtlSupport()); 342 mOverride = false; 343 } 344 345 public void resolveWithLayoutDirection(int layoutDirection) { 346 // First reset "left" and "right" drawables to their initial values 347 mDrawableLeft = mDrawableLeftInitial; 348 mDrawableRight = mDrawableRightInitial; 349 350 if (mIsRtlCompatibilityMode) { 351 // Use "start" drawable as "left" drawable if the "left" drawable was not defined 352 if (mDrawableStart != null && mDrawableLeft == null) { 353 mDrawableLeft = mDrawableStart; 354 mDrawableSizeLeft = mDrawableSizeStart; 355 mDrawableHeightLeft = mDrawableHeightStart; 356 } 357 // Use "end" drawable as "right" drawable if the "right" drawable was not defined 358 if (mDrawableEnd != null && mDrawableRight == null) { 359 mDrawableRight = mDrawableEnd; 360 mDrawableSizeRight = mDrawableSizeEnd; 361 mDrawableHeightRight = mDrawableHeightEnd; 362 } 363 } else { 364 // JB-MR1+ normal case: "start" / "end" drawables are overriding "left" / "right" 365 // drawable if and only if they have been defined 366 switch(layoutDirection) { 367 case LAYOUT_DIRECTION_RTL: 368 if (mOverride) { 369 mDrawableRight = mDrawableStart; 370 mDrawableSizeRight = mDrawableSizeStart; 371 mDrawableHeightRight = mDrawableHeightStart; 372 373 mDrawableLeft = mDrawableEnd; 374 mDrawableSizeLeft = mDrawableSizeEnd; 375 mDrawableHeightLeft = mDrawableHeightEnd; 376 } 377 break; 378 379 case LAYOUT_DIRECTION_LTR: 380 default: 381 if (mOverride) { 382 mDrawableLeft = mDrawableStart; 383 mDrawableSizeLeft = mDrawableSizeStart; 384 mDrawableHeightLeft = mDrawableHeightStart; 385 386 mDrawableRight = mDrawableEnd; 387 mDrawableSizeRight = mDrawableSizeEnd; 388 mDrawableHeightRight = mDrawableHeightEnd; 389 } 390 break; 391 } 392 } 393 applyErrorDrawableIfNeeded(layoutDirection); 394 updateDrawablesLayoutDirection(layoutDirection); 395 } 396 397 private void updateDrawablesLayoutDirection(int layoutDirection) { 398 if (mDrawableLeft != null) { 399 mDrawableLeft.setLayoutDirection(layoutDirection); 400 } 401 if (mDrawableRight != null) { 402 mDrawableRight.setLayoutDirection(layoutDirection); 403 } 404 if (mDrawableTop != null) { 405 mDrawableTop.setLayoutDirection(layoutDirection); 406 } 407 if (mDrawableBottom != null) { 408 mDrawableBottom.setLayoutDirection(layoutDirection); 409 } 410 } 411 412 public void setErrorDrawable(Drawable dr, TextView tv) { 413 if (mDrawableError != dr && mDrawableError != null) { 414 mDrawableError.setCallback(null); 415 } 416 mDrawableError = dr; 417 418 final Rect compoundRect = mCompoundRect; 419 int[] state = tv.getDrawableState(); 420 421 if (mDrawableError != null) { 422 mDrawableError.setState(state); 423 mDrawableError.copyBounds(compoundRect); 424 mDrawableError.setCallback(tv); 425 mDrawableSizeError = compoundRect.width(); 426 mDrawableHeightError = compoundRect.height(); 427 } else { 428 mDrawableSizeError = mDrawableHeightError = 0; 429 } 430 } 431 432 private void applyErrorDrawableIfNeeded(int layoutDirection) { 433 // first restore the initial state if needed 434 switch (mDrawableSaved) { 435 case DRAWABLE_LEFT: 436 mDrawableLeft = mDrawableTemp; 437 mDrawableSizeLeft = mDrawableSizeTemp; 438 mDrawableHeightLeft = mDrawableHeightTemp; 439 break; 440 case DRAWABLE_RIGHT: 441 mDrawableRight = mDrawableTemp; 442 mDrawableSizeRight = mDrawableSizeTemp; 443 mDrawableHeightRight = mDrawableHeightTemp; 444 break; 445 case DRAWABLE_NONE: 446 default: 447 } 448 // then, if needed, assign the Error drawable to the correct location 449 if (mDrawableError != null) { 450 switch(layoutDirection) { 451 case LAYOUT_DIRECTION_RTL: 452 mDrawableSaved = DRAWABLE_LEFT; 453 454 mDrawableTemp = mDrawableLeft; 455 mDrawableSizeTemp = mDrawableSizeLeft; 456 mDrawableHeightTemp = mDrawableHeightLeft; 457 458 mDrawableLeft = mDrawableError; 459 mDrawableSizeLeft = mDrawableSizeError; 460 mDrawableHeightLeft = mDrawableHeightError; 461 break; 462 case LAYOUT_DIRECTION_LTR: 463 default: 464 mDrawableSaved = DRAWABLE_RIGHT; 465 466 mDrawableTemp = mDrawableRight; 467 mDrawableSizeTemp = mDrawableSizeRight; 468 mDrawableHeightTemp = mDrawableHeightRight; 469 470 mDrawableRight = mDrawableError; 471 mDrawableSizeRight = mDrawableSizeError; 472 mDrawableHeightRight = mDrawableHeightError; 473 break; 474 } 475 } 476 } 477 } 478 479 Drawables mDrawables; 480 481 private CharWrapper mCharWrapper; 482 483 private Marquee mMarquee; 484 private boolean mRestartMarquee; 485 486 private int mMarqueeRepeatLimit = 3; 487 488 private int mLastLayoutDirection = -1; 489 490 /** 491 * On some devices the fading edges add a performance penalty if used 492 * extensively in the same layout. This mode indicates how the marquee 493 * is currently being shown, if applicable. (mEllipsize will == MARQUEE) 494 */ 495 private int mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 496 497 /** 498 * When mMarqueeFadeMode is not MARQUEE_FADE_NORMAL, this stores 499 * the layout that should be used when the mode switches. 500 */ 501 private Layout mSavedMarqueeModeLayout; 502 503 @ViewDebug.ExportedProperty(category = "text") 504 private CharSequence mText; 505 private CharSequence mTransformed; 506 private BufferType mBufferType = BufferType.NORMAL; 507 508 private CharSequence mHint; 509 private Layout mHintLayout; 510 511 private MovementMethod mMovement; 512 513 private TransformationMethod mTransformation; 514 private boolean mAllowTransformationLengthChange; 515 private ChangeWatcher mChangeWatcher; 516 517 private ArrayList<TextWatcher> mListeners; 518 519 // display attributes 520 private final TextPaint mTextPaint; 521 private boolean mUserSetTextScaleX; 522 private Layout mLayout; 523 524 private int mGravity = Gravity.TOP | Gravity.START; 525 private boolean mHorizontallyScrolling; 526 527 private int mAutoLinkMask; 528 private boolean mLinksClickable = true; 529 530 private float mSpacingMult = 1.0f; 531 private float mSpacingAdd = 0.0f; 532 533 private int mMaximum = Integer.MAX_VALUE; 534 private int mMaxMode = LINES; 535 private int mMinimum = 0; 536 private int mMinMode = LINES; 537 538 private int mOldMaximum = mMaximum; 539 private int mOldMaxMode = mMaxMode; 540 541 private int mMaxWidth = Integer.MAX_VALUE; 542 private int mMaxWidthMode = PIXELS; 543 private int mMinWidth = 0; 544 private int mMinWidthMode = PIXELS; 545 546 private boolean mSingleLine; 547 private int mDesiredHeightAtMeasure = -1; 548 private boolean mIncludePad = true; 549 private int mDeferScroll = -1; 550 551 // tmp primitives, so we don't alloc them on each draw 552 private Rect mTempRect; 553 private long mLastScroll; 554 private Scroller mScroller; 555 556 private BoringLayout.Metrics mBoring, mHintBoring; 557 private BoringLayout mSavedLayout, mSavedHintLayout; 558 559 private TextDirectionHeuristic mTextDir; 560 561 private InputFilter[] mFilters = NO_FILTERS; 562 563 private volatile Locale mCurrentSpellCheckerLocaleCache; 564 565 // It is possible to have a selection even when mEditor is null (programmatically set, like when 566 // a link is pressed). These highlight-related fields do not go in mEditor. 567 int mHighlightColor = 0x6633B5E5; 568 private Path mHighlightPath; 569 private final Paint mHighlightPaint; 570 private boolean mHighlightPathBogus = true; 571 572 // Although these fields are specific to editable text, they are not added to Editor because 573 // they are defined by the TextView's style and are theme-dependent. 574 int mCursorDrawableRes; 575 // These four fields, could be moved to Editor, since we know their default values and we 576 // could condition the creation of the Editor to a non standard value. This is however 577 // brittle since the hardcoded values here (such as 578 // com.android.internal.R.drawable.text_select_handle_left) would have to be updated if the 579 // default style is modified. 580 int mTextSelectHandleLeftRes; 581 int mTextSelectHandleRightRes; 582 int mTextSelectHandleRes; 583 int mTextEditSuggestionItemLayout; 584 585 /** 586 * EditText specific data, created on demand when one of the Editor fields is used. 587 * See {@link #createEditorIfNeeded()}. 588 */ 589 private Editor mEditor; 590 591 /* 592 * Kick-start the font cache for the zygote process (to pay the cost of 593 * initializing freetype for our default font only once). 594 */ 595 static { 596 Paint p = new Paint(); 597 p.setAntiAlias(true); 598 // We don't care about the result, just the side-effect of measuring. 599 p.measureText("H"); 600 } 601 602 /** 603 * Interface definition for a callback to be invoked when an action is 604 * performed on the editor. 605 */ 606 public interface OnEditorActionListener { 607 /** 608 * Called when an action is being performed. 609 * 610 * @param v The view that was clicked. 611 * @param actionId Identifier of the action. This will be either the 612 * identifier you supplied, or {@link EditorInfo#IME_NULL 613 * EditorInfo.IME_NULL} if being called due to the enter key 614 * being pressed. 615 * @param event If triggered by an enter key, this is the event; 616 * otherwise, this is null. 617 * @return Return true if you have consumed the action, else false. 618 */ 619 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 620 } 621 622 public TextView(Context context) { 623 this(context, null); 624 } 625 626 public TextView(Context context, AttributeSet attrs) { 627 this(context, attrs, com.android.internal.R.attr.textViewStyle); 628 } 629 630 public TextView(Context context, AttributeSet attrs, int defStyleAttr) { 631 this(context, attrs, defStyleAttr, 0); 632 } 633 634 @SuppressWarnings("deprecation") 635 public TextView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 636 super(context, attrs, defStyleAttr, defStyleRes); 637 638 mText = ""; 639 640 final Resources res = getResources(); 641 final CompatibilityInfo compat = res.getCompatibilityInfo(); 642 643 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 644 mTextPaint.density = res.getDisplayMetrics().density; 645 mTextPaint.setCompatibilityScaling(compat.applicationScale); 646 647 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 648 mHighlightPaint.setCompatibilityScaling(compat.applicationScale); 649 650 mMovement = getDefaultMovementMethod(); 651 652 mTransformation = null; 653 654 int textColorHighlight = 0; 655 ColorStateList textColor = null; 656 ColorStateList textColorHint = null; 657 ColorStateList textColorLink = null; 658 int textSize = 15; 659 String fontFamily = null; 660 int typefaceIndex = -1; 661 int styleIndex = -1; 662 boolean allCaps = false; 663 int shadowcolor = 0; 664 float dx = 0, dy = 0, r = 0; 665 boolean elegant = false; 666 float letterSpacing = 0; 667 String fontFeatureSettings = null; 668 669 final Resources.Theme theme = context.getTheme(); 670 671 /* 672 * Look the appearance up without checking first if it exists because 673 * almost every TextView has one and it greatly simplifies the logic 674 * to be able to parse the appearance first and then let specific tags 675 * for this View override it. 676 */ 677 TypedArray a = theme.obtainStyledAttributes(attrs, 678 com.android.internal.R.styleable.TextViewAppearance, defStyleAttr, defStyleRes); 679 TypedArray appearance = null; 680 int ap = a.getResourceId( 681 com.android.internal.R.styleable.TextViewAppearance_textAppearance, -1); 682 a.recycle(); 683 if (ap != -1) { 684 appearance = theme.obtainStyledAttributes( 685 ap, com.android.internal.R.styleable.TextAppearance); 686 } 687 if (appearance != null) { 688 int n = appearance.getIndexCount(); 689 for (int i = 0; i < n; i++) { 690 int attr = appearance.getIndex(i); 691 692 switch (attr) { 693 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 694 textColorHighlight = appearance.getColor(attr, textColorHighlight); 695 break; 696 697 case com.android.internal.R.styleable.TextAppearance_textColor: 698 textColor = appearance.getColorStateList(attr); 699 break; 700 701 case com.android.internal.R.styleable.TextAppearance_textColorHint: 702 textColorHint = appearance.getColorStateList(attr); 703 break; 704 705 case com.android.internal.R.styleable.TextAppearance_textColorLink: 706 textColorLink = appearance.getColorStateList(attr); 707 break; 708 709 case com.android.internal.R.styleable.TextAppearance_textSize: 710 textSize = appearance.getDimensionPixelSize(attr, textSize); 711 break; 712 713 case com.android.internal.R.styleable.TextAppearance_typeface: 714 typefaceIndex = appearance.getInt(attr, -1); 715 break; 716 717 case com.android.internal.R.styleable.TextAppearance_fontFamily: 718 fontFamily = appearance.getString(attr); 719 break; 720 721 case com.android.internal.R.styleable.TextAppearance_textStyle: 722 styleIndex = appearance.getInt(attr, -1); 723 break; 724 725 case com.android.internal.R.styleable.TextAppearance_textAllCaps: 726 allCaps = appearance.getBoolean(attr, false); 727 break; 728 729 case com.android.internal.R.styleable.TextAppearance_shadowColor: 730 shadowcolor = appearance.getInt(attr, 0); 731 break; 732 733 case com.android.internal.R.styleable.TextAppearance_shadowDx: 734 dx = appearance.getFloat(attr, 0); 735 break; 736 737 case com.android.internal.R.styleable.TextAppearance_shadowDy: 738 dy = appearance.getFloat(attr, 0); 739 break; 740 741 case com.android.internal.R.styleable.TextAppearance_shadowRadius: 742 r = appearance.getFloat(attr, 0); 743 break; 744 745 case com.android.internal.R.styleable.TextAppearance_elegantTextHeight: 746 elegant = appearance.getBoolean(attr, false); 747 break; 748 749 case com.android.internal.R.styleable.TextAppearance_letterSpacing: 750 letterSpacing = appearance.getFloat(attr, 0); 751 break; 752 753 case com.android.internal.R.styleable.TextAppearance_fontFeatureSettings: 754 fontFeatureSettings = appearance.getString(attr); 755 break; 756 } 757 } 758 759 appearance.recycle(); 760 } 761 762 boolean editable = getDefaultEditable(); 763 CharSequence inputMethod = null; 764 int numeric = 0; 765 CharSequence digits = null; 766 boolean phone = false; 767 boolean autotext = false; 768 int autocap = -1; 769 int buffertype = 0; 770 boolean selectallonfocus = false; 771 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 772 drawableBottom = null, drawableStart = null, drawableEnd = null; 773 int drawablePadding = 0; 774 int ellipsize = -1; 775 boolean singleLine = false; 776 int maxlength = -1; 777 CharSequence text = ""; 778 CharSequence hint = null; 779 boolean password = false; 780 int inputType = EditorInfo.TYPE_NULL; 781 782 a = theme.obtainStyledAttributes( 783 attrs, com.android.internal.R.styleable.TextView, defStyleAttr, defStyleRes); 784 785 int n = a.getIndexCount(); 786 for (int i = 0; i < n; i++) { 787 int attr = a.getIndex(i); 788 789 switch (attr) { 790 case com.android.internal.R.styleable.TextView_editable: 791 editable = a.getBoolean(attr, editable); 792 break; 793 794 case com.android.internal.R.styleable.TextView_inputMethod: 795 inputMethod = a.getText(attr); 796 break; 797 798 case com.android.internal.R.styleable.TextView_numeric: 799 numeric = a.getInt(attr, numeric); 800 break; 801 802 case com.android.internal.R.styleable.TextView_digits: 803 digits = a.getText(attr); 804 break; 805 806 case com.android.internal.R.styleable.TextView_phoneNumber: 807 phone = a.getBoolean(attr, phone); 808 break; 809 810 case com.android.internal.R.styleable.TextView_autoText: 811 autotext = a.getBoolean(attr, autotext); 812 break; 813 814 case com.android.internal.R.styleable.TextView_capitalize: 815 autocap = a.getInt(attr, autocap); 816 break; 817 818 case com.android.internal.R.styleable.TextView_bufferType: 819 buffertype = a.getInt(attr, buffertype); 820 break; 821 822 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 823 selectallonfocus = a.getBoolean(attr, selectallonfocus); 824 break; 825 826 case com.android.internal.R.styleable.TextView_autoLink: 827 mAutoLinkMask = a.getInt(attr, 0); 828 break; 829 830 case com.android.internal.R.styleable.TextView_linksClickable: 831 mLinksClickable = a.getBoolean(attr, true); 832 break; 833 834 case com.android.internal.R.styleable.TextView_drawableLeft: 835 drawableLeft = a.getDrawable(attr); 836 break; 837 838 case com.android.internal.R.styleable.TextView_drawableTop: 839 drawableTop = a.getDrawable(attr); 840 break; 841 842 case com.android.internal.R.styleable.TextView_drawableRight: 843 drawableRight = a.getDrawable(attr); 844 break; 845 846 case com.android.internal.R.styleable.TextView_drawableBottom: 847 drawableBottom = a.getDrawable(attr); 848 break; 849 850 case com.android.internal.R.styleable.TextView_drawableStart: 851 drawableStart = a.getDrawable(attr); 852 break; 853 854 case com.android.internal.R.styleable.TextView_drawableEnd: 855 drawableEnd = a.getDrawable(attr); 856 break; 857 858 case com.android.internal.R.styleable.TextView_drawablePadding: 859 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 860 break; 861 862 case com.android.internal.R.styleable.TextView_maxLines: 863 setMaxLines(a.getInt(attr, -1)); 864 break; 865 866 case com.android.internal.R.styleable.TextView_maxHeight: 867 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 868 break; 869 870 case com.android.internal.R.styleable.TextView_lines: 871 setLines(a.getInt(attr, -1)); 872 break; 873 874 case com.android.internal.R.styleable.TextView_height: 875 setHeight(a.getDimensionPixelSize(attr, -1)); 876 break; 877 878 case com.android.internal.R.styleable.TextView_minLines: 879 setMinLines(a.getInt(attr, -1)); 880 break; 881 882 case com.android.internal.R.styleable.TextView_minHeight: 883 setMinHeight(a.getDimensionPixelSize(attr, -1)); 884 break; 885 886 case com.android.internal.R.styleable.TextView_maxEms: 887 setMaxEms(a.getInt(attr, -1)); 888 break; 889 890 case com.android.internal.R.styleable.TextView_maxWidth: 891 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 892 break; 893 894 case com.android.internal.R.styleable.TextView_ems: 895 setEms(a.getInt(attr, -1)); 896 break; 897 898 case com.android.internal.R.styleable.TextView_width: 899 setWidth(a.getDimensionPixelSize(attr, -1)); 900 break; 901 902 case com.android.internal.R.styleable.TextView_minEms: 903 setMinEms(a.getInt(attr, -1)); 904 break; 905 906 case com.android.internal.R.styleable.TextView_minWidth: 907 setMinWidth(a.getDimensionPixelSize(attr, -1)); 908 break; 909 910 case com.android.internal.R.styleable.TextView_gravity: 911 setGravity(a.getInt(attr, -1)); 912 break; 913 914 case com.android.internal.R.styleable.TextView_hint: 915 hint = a.getText(attr); 916 break; 917 918 case com.android.internal.R.styleable.TextView_text: 919 text = a.getText(attr); 920 break; 921 922 case com.android.internal.R.styleable.TextView_scrollHorizontally: 923 if (a.getBoolean(attr, false)) { 924 setHorizontallyScrolling(true); 925 } 926 break; 927 928 case com.android.internal.R.styleable.TextView_singleLine: 929 singleLine = a.getBoolean(attr, singleLine); 930 break; 931 932 case com.android.internal.R.styleable.TextView_ellipsize: 933 ellipsize = a.getInt(attr, ellipsize); 934 break; 935 936 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 937 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 938 break; 939 940 case com.android.internal.R.styleable.TextView_includeFontPadding: 941 if (!a.getBoolean(attr, true)) { 942 setIncludeFontPadding(false); 943 } 944 break; 945 946 case com.android.internal.R.styleable.TextView_cursorVisible: 947 if (!a.getBoolean(attr, true)) { 948 setCursorVisible(false); 949 } 950 break; 951 952 case com.android.internal.R.styleable.TextView_maxLength: 953 maxlength = a.getInt(attr, -1); 954 break; 955 956 case com.android.internal.R.styleable.TextView_textScaleX: 957 setTextScaleX(a.getFloat(attr, 1.0f)); 958 break; 959 960 case com.android.internal.R.styleable.TextView_freezesText: 961 mFreezesText = a.getBoolean(attr, false); 962 break; 963 964 case com.android.internal.R.styleable.TextView_shadowColor: 965 shadowcolor = a.getInt(attr, 0); 966 break; 967 968 case com.android.internal.R.styleable.TextView_shadowDx: 969 dx = a.getFloat(attr, 0); 970 break; 971 972 case com.android.internal.R.styleable.TextView_shadowDy: 973 dy = a.getFloat(attr, 0); 974 break; 975 976 case com.android.internal.R.styleable.TextView_shadowRadius: 977 r = a.getFloat(attr, 0); 978 break; 979 980 case com.android.internal.R.styleable.TextView_enabled: 981 setEnabled(a.getBoolean(attr, isEnabled())); 982 break; 983 984 case com.android.internal.R.styleable.TextView_textColorHighlight: 985 textColorHighlight = a.getColor(attr, textColorHighlight); 986 break; 987 988 case com.android.internal.R.styleable.TextView_textColor: 989 textColor = a.getColorStateList(attr); 990 break; 991 992 case com.android.internal.R.styleable.TextView_textColorHint: 993 textColorHint = a.getColorStateList(attr); 994 break; 995 996 case com.android.internal.R.styleable.TextView_textColorLink: 997 textColorLink = a.getColorStateList(attr); 998 break; 999 1000 case com.android.internal.R.styleable.TextView_textSize: 1001 textSize = a.getDimensionPixelSize(attr, textSize); 1002 break; 1003 1004 case com.android.internal.R.styleable.TextView_typeface: 1005 typefaceIndex = a.getInt(attr, typefaceIndex); 1006 break; 1007 1008 case com.android.internal.R.styleable.TextView_textStyle: 1009 styleIndex = a.getInt(attr, styleIndex); 1010 break; 1011 1012 case com.android.internal.R.styleable.TextView_fontFamily: 1013 fontFamily = a.getString(attr); 1014 break; 1015 1016 case com.android.internal.R.styleable.TextView_password: 1017 password = a.getBoolean(attr, password); 1018 break; 1019 1020 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 1021 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 1022 break; 1023 1024 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 1025 mSpacingMult = a.getFloat(attr, mSpacingMult); 1026 break; 1027 1028 case com.android.internal.R.styleable.TextView_inputType: 1029 inputType = a.getInt(attr, EditorInfo.TYPE_NULL); 1030 break; 1031 1032 case com.android.internal.R.styleable.TextView_imeOptions: 1033 createEditorIfNeeded(); 1034 mEditor.createInputContentTypeIfNeeded(); 1035 mEditor.mInputContentType.imeOptions = a.getInt(attr, 1036 mEditor.mInputContentType.imeOptions); 1037 break; 1038 1039 case com.android.internal.R.styleable.TextView_imeActionLabel: 1040 createEditorIfNeeded(); 1041 mEditor.createInputContentTypeIfNeeded(); 1042 mEditor.mInputContentType.imeActionLabel = a.getText(attr); 1043 break; 1044 1045 case com.android.internal.R.styleable.TextView_imeActionId: 1046 createEditorIfNeeded(); 1047 mEditor.createInputContentTypeIfNeeded(); 1048 mEditor.mInputContentType.imeActionId = a.getInt(attr, 1049 mEditor.mInputContentType.imeActionId); 1050 break; 1051 1052 case com.android.internal.R.styleable.TextView_privateImeOptions: 1053 setPrivateImeOptions(a.getString(attr)); 1054 break; 1055 1056 case com.android.internal.R.styleable.TextView_editorExtras: 1057 try { 1058 setInputExtras(a.getResourceId(attr, 0)); 1059 } catch (XmlPullParserException e) { 1060 Log.w(LOG_TAG, "Failure reading input extras", e); 1061 } catch (IOException e) { 1062 Log.w(LOG_TAG, "Failure reading input extras", e); 1063 } 1064 break; 1065 1066 case com.android.internal.R.styleable.TextView_textCursorDrawable: 1067 mCursorDrawableRes = a.getResourceId(attr, 0); 1068 break; 1069 1070 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 1071 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 1072 break; 1073 1074 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 1075 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 1076 break; 1077 1078 case com.android.internal.R.styleable.TextView_textSelectHandle: 1079 mTextSelectHandleRes = a.getResourceId(attr, 0); 1080 break; 1081 1082 case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout: 1083 mTextEditSuggestionItemLayout = a.getResourceId(attr, 0); 1084 break; 1085 1086 case com.android.internal.R.styleable.TextView_textIsSelectable: 1087 setTextIsSelectable(a.getBoolean(attr, false)); 1088 break; 1089 1090 case com.android.internal.R.styleable.TextView_textAllCaps: 1091 allCaps = a.getBoolean(attr, false); 1092 break; 1093 1094 case com.android.internal.R.styleable.TextView_elegantTextHeight: 1095 elegant = a.getBoolean(attr, false); 1096 break; 1097 1098 case com.android.internal.R.styleable.TextView_letterSpacing: 1099 letterSpacing = a.getFloat(attr, 0); 1100 break; 1101 1102 case com.android.internal.R.styleable.TextView_fontFeatureSettings: 1103 fontFeatureSettings = a.getString(attr); 1104 break; 1105 } 1106 } 1107 a.recycle(); 1108 1109 BufferType bufferType = BufferType.EDITABLE; 1110 1111 final int variation = 1112 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 1113 final boolean passwordInputType = variation 1114 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 1115 final boolean webPasswordInputType = variation 1116 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 1117 final boolean numberPasswordInputType = variation 1118 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 1119 1120 if (inputMethod != null) { 1121 Class<?> c; 1122 1123 try { 1124 c = Class.forName(inputMethod.toString()); 1125 } catch (ClassNotFoundException ex) { 1126 throw new RuntimeException(ex); 1127 } 1128 1129 try { 1130 createEditorIfNeeded(); 1131 mEditor.mKeyListener = (KeyListener) c.newInstance(); 1132 } catch (InstantiationException ex) { 1133 throw new RuntimeException(ex); 1134 } catch (IllegalAccessException ex) { 1135 throw new RuntimeException(ex); 1136 } 1137 try { 1138 mEditor.mInputType = inputType != EditorInfo.TYPE_NULL 1139 ? inputType 1140 : mEditor.mKeyListener.getInputType(); 1141 } catch (IncompatibleClassChangeError e) { 1142 mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT; 1143 } 1144 } else if (digits != null) { 1145 createEditorIfNeeded(); 1146 mEditor.mKeyListener = DigitsKeyListener.getInstance(digits.toString()); 1147 // If no input type was specified, we will default to generic 1148 // text, since we can't tell the IME about the set of digits 1149 // that was selected. 1150 mEditor.mInputType = inputType != EditorInfo.TYPE_NULL 1151 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 1152 } else if (inputType != EditorInfo.TYPE_NULL) { 1153 setInputType(inputType, true); 1154 // If set, the input type overrides what was set using the deprecated singleLine flag. 1155 singleLine = !isMultilineInputType(inputType); 1156 } else if (phone) { 1157 createEditorIfNeeded(); 1158 mEditor.mKeyListener = DialerKeyListener.getInstance(); 1159 mEditor.mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 1160 } else if (numeric != 0) { 1161 createEditorIfNeeded(); 1162 mEditor.mKeyListener = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 1163 (numeric & DECIMAL) != 0); 1164 inputType = EditorInfo.TYPE_CLASS_NUMBER; 1165 if ((numeric & SIGNED) != 0) { 1166 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 1167 } 1168 if ((numeric & DECIMAL) != 0) { 1169 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 1170 } 1171 mEditor.mInputType = inputType; 1172 } else if (autotext || autocap != -1) { 1173 TextKeyListener.Capitalize cap; 1174 1175 inputType = EditorInfo.TYPE_CLASS_TEXT; 1176 1177 switch (autocap) { 1178 case 1: 1179 cap = TextKeyListener.Capitalize.SENTENCES; 1180 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 1181 break; 1182 1183 case 2: 1184 cap = TextKeyListener.Capitalize.WORDS; 1185 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 1186 break; 1187 1188 case 3: 1189 cap = TextKeyListener.Capitalize.CHARACTERS; 1190 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 1191 break; 1192 1193 default: 1194 cap = TextKeyListener.Capitalize.NONE; 1195 break; 1196 } 1197 1198 createEditorIfNeeded(); 1199 mEditor.mKeyListener = TextKeyListener.getInstance(autotext, cap); 1200 mEditor.mInputType = inputType; 1201 } else if (isTextSelectable()) { 1202 // Prevent text changes from keyboard. 1203 if (mEditor != null) { 1204 mEditor.mKeyListener = null; 1205 mEditor.mInputType = EditorInfo.TYPE_NULL; 1206 } 1207 bufferType = BufferType.SPANNABLE; 1208 // So that selection can be changed using arrow keys and touch is handled. 1209 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 1210 } else if (editable) { 1211 createEditorIfNeeded(); 1212 mEditor.mKeyListener = TextKeyListener.getInstance(); 1213 mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT; 1214 } else { 1215 if (mEditor != null) mEditor.mKeyListener = null; 1216 1217 switch (buffertype) { 1218 case 0: 1219 bufferType = BufferType.NORMAL; 1220 break; 1221 case 1: 1222 bufferType = BufferType.SPANNABLE; 1223 break; 1224 case 2: 1225 bufferType = BufferType.EDITABLE; 1226 break; 1227 } 1228 } 1229 1230 if (mEditor != null) mEditor.adjustInputType(password, passwordInputType, 1231 webPasswordInputType, numberPasswordInputType); 1232 1233 if (selectallonfocus) { 1234 createEditorIfNeeded(); 1235 mEditor.mSelectAllOnFocus = true; 1236 1237 if (bufferType == BufferType.NORMAL) 1238 bufferType = BufferType.SPANNABLE; 1239 } 1240 1241 // This call will save the initial left/right drawables 1242 setCompoundDrawablesWithIntrinsicBounds( 1243 drawableLeft, drawableTop, drawableRight, drawableBottom); 1244 setRelativeDrawablesIfNeeded(drawableStart, drawableEnd); 1245 setCompoundDrawablePadding(drawablePadding); 1246 1247 // Same as setSingleLine(), but make sure the transformation method and the maximum number 1248 // of lines of height are unchanged for multi-line TextViews. 1249 setInputTypeSingleLine(singleLine); 1250 applySingleLine(singleLine, singleLine, singleLine); 1251 1252 if (singleLine && getKeyListener() == null && ellipsize < 0) { 1253 ellipsize = 3; // END 1254 } 1255 1256 switch (ellipsize) { 1257 case 1: 1258 setEllipsize(TextUtils.TruncateAt.START); 1259 break; 1260 case 2: 1261 setEllipsize(TextUtils.TruncateAt.MIDDLE); 1262 break; 1263 case 3: 1264 setEllipsize(TextUtils.TruncateAt.END); 1265 break; 1266 case 4: 1267 if (ViewConfiguration.get(context).isFadingMarqueeEnabled()) { 1268 setHorizontalFadingEdgeEnabled(true); 1269 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 1270 } else { 1271 setHorizontalFadingEdgeEnabled(false); 1272 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 1273 } 1274 setEllipsize(TextUtils.TruncateAt.MARQUEE); 1275 break; 1276 } 1277 1278 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 1279 setHintTextColor(textColorHint); 1280 setLinkTextColor(textColorLink); 1281 if (textColorHighlight != 0) { 1282 setHighlightColor(textColorHighlight); 1283 } 1284 setRawTextSize(textSize); 1285 setElegantTextHeight(elegant); 1286 setLetterSpacing(letterSpacing); 1287 setFontFeatureSettings(fontFeatureSettings); 1288 1289 if (allCaps) { 1290 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 1291 } 1292 1293 if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) { 1294 setTransformationMethod(PasswordTransformationMethod.getInstance()); 1295 typefaceIndex = MONOSPACE; 1296 } else if (mEditor != null && 1297 (mEditor.mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 1298 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 1299 typefaceIndex = MONOSPACE; 1300 } 1301 1302 setTypefaceFromAttrs(fontFamily, typefaceIndex, styleIndex); 1303 1304 if (shadowcolor != 0) { 1305 setShadowLayer(r, dx, dy, shadowcolor); 1306 } 1307 1308 if (maxlength >= 0) { 1309 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 1310 } else { 1311 setFilters(NO_FILTERS); 1312 } 1313 1314 setText(text, bufferType); 1315 if (hint != null) setHint(hint); 1316 1317 /* 1318 * Views are not normally focusable unless specified to be. 1319 * However, TextViews that have input or movement methods *are* 1320 * focusable by default. 1321 */ 1322 a = context.obtainStyledAttributes( 1323 attrs, com.android.internal.R.styleable.View, defStyleAttr, defStyleRes); 1324 1325 boolean focusable = mMovement != null || getKeyListener() != null; 1326 boolean clickable = focusable || isClickable(); 1327 boolean longClickable = focusable || isLongClickable(); 1328 1329 n = a.getIndexCount(); 1330 for (int i = 0; i < n; i++) { 1331 int attr = a.getIndex(i); 1332 1333 switch (attr) { 1334 case com.android.internal.R.styleable.View_focusable: 1335 focusable = a.getBoolean(attr, focusable); 1336 break; 1337 1338 case com.android.internal.R.styleable.View_clickable: 1339 clickable = a.getBoolean(attr, clickable); 1340 break; 1341 1342 case com.android.internal.R.styleable.View_longClickable: 1343 longClickable = a.getBoolean(attr, longClickable); 1344 break; 1345 } 1346 } 1347 a.recycle(); 1348 1349 setFocusable(focusable); 1350 setClickable(clickable); 1351 setLongClickable(longClickable); 1352 1353 if (mEditor != null) mEditor.prepareCursorControllers(); 1354 1355 // If not explicitly specified this view is important for accessibility. 1356 if (getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 1357 setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 1358 } 1359 } 1360 1361 private void setTypefaceFromAttrs(String familyName, int typefaceIndex, int styleIndex) { 1362 Typeface tf = null; 1363 if (familyName != null) { 1364 tf = Typeface.create(familyName, styleIndex); 1365 if (tf != null) { 1366 setTypeface(tf); 1367 return; 1368 } 1369 } 1370 switch (typefaceIndex) { 1371 case SANS: 1372 tf = Typeface.SANS_SERIF; 1373 break; 1374 1375 case SERIF: 1376 tf = Typeface.SERIF; 1377 break; 1378 1379 case MONOSPACE: 1380 tf = Typeface.MONOSPACE; 1381 break; 1382 } 1383 1384 setTypeface(tf, styleIndex); 1385 } 1386 1387 private void setRelativeDrawablesIfNeeded(Drawable start, Drawable end) { 1388 boolean hasRelativeDrawables = (start != null) || (end != null); 1389 if (hasRelativeDrawables) { 1390 Drawables dr = mDrawables; 1391 if (dr == null) { 1392 mDrawables = dr = new Drawables(getContext()); 1393 } 1394 mDrawables.mOverride = true; 1395 final Rect compoundRect = dr.mCompoundRect; 1396 int[] state = getDrawableState(); 1397 if (start != null) { 1398 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1399 start.setState(state); 1400 start.copyBounds(compoundRect); 1401 start.setCallback(this); 1402 1403 dr.mDrawableStart = start; 1404 dr.mDrawableSizeStart = compoundRect.width(); 1405 dr.mDrawableHeightStart = compoundRect.height(); 1406 } else { 1407 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1408 } 1409 if (end != null) { 1410 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1411 end.setState(state); 1412 end.copyBounds(compoundRect); 1413 end.setCallback(this); 1414 1415 dr.mDrawableEnd = end; 1416 dr.mDrawableSizeEnd = compoundRect.width(); 1417 dr.mDrawableHeightEnd = compoundRect.height(); 1418 } else { 1419 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1420 } 1421 resetResolvedDrawables(); 1422 resolveDrawables(); 1423 } 1424 } 1425 1426 @Override 1427 public void setEnabled(boolean enabled) { 1428 if (enabled == isEnabled()) { 1429 return; 1430 } 1431 1432 if (!enabled) { 1433 // Hide the soft input if the currently active TextView is disabled 1434 InputMethodManager imm = InputMethodManager.peekInstance(); 1435 if (imm != null && imm.isActive(this)) { 1436 imm.hideSoftInputFromWindow(getWindowToken(), 0); 1437 } 1438 } 1439 1440 super.setEnabled(enabled); 1441 1442 if (enabled) { 1443 // Make sure IME is updated with current editor info. 1444 InputMethodManager imm = InputMethodManager.peekInstance(); 1445 if (imm != null) imm.restartInput(this); 1446 } 1447 1448 // Will change text color 1449 if (mEditor != null) { 1450 mEditor.invalidateTextDisplayList(); 1451 mEditor.prepareCursorControllers(); 1452 1453 // start or stop the cursor blinking as appropriate 1454 mEditor.makeBlink(); 1455 } 1456 } 1457 1458 /** 1459 * Sets the typeface and style in which the text should be displayed, 1460 * and turns on the fake bold and italic bits in the Paint if the 1461 * Typeface that you provided does not have all the bits in the 1462 * style that you specified. 1463 * 1464 * @attr ref android.R.styleable#TextView_typeface 1465 * @attr ref android.R.styleable#TextView_textStyle 1466 */ 1467 public void setTypeface(Typeface tf, int style) { 1468 if (style > 0) { 1469 if (tf == null) { 1470 tf = Typeface.defaultFromStyle(style); 1471 } else { 1472 tf = Typeface.create(tf, style); 1473 } 1474 1475 setTypeface(tf); 1476 // now compute what (if any) algorithmic styling is needed 1477 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1478 int need = style & ~typefaceStyle; 1479 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1480 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1481 } else { 1482 mTextPaint.setFakeBoldText(false); 1483 mTextPaint.setTextSkewX(0); 1484 setTypeface(tf); 1485 } 1486 } 1487 1488 /** 1489 * Subclasses override this to specify that they have a KeyListener 1490 * by default even if not specifically called for in the XML options. 1491 */ 1492 protected boolean getDefaultEditable() { 1493 return false; 1494 } 1495 1496 /** 1497 * Subclasses override this to specify a default movement method. 1498 */ 1499 protected MovementMethod getDefaultMovementMethod() { 1500 return null; 1501 } 1502 1503 /** 1504 * Return the text the TextView is displaying. If setText() was called with 1505 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1506 * the return value from this method to Spannable or Editable, respectively. 1507 * 1508 * Note: The content of the return value should not be modified. If you want 1509 * a modifiable one, you should make your own copy first. 1510 * 1511 * @attr ref android.R.styleable#TextView_text 1512 */ 1513 @ViewDebug.CapturedViewProperty 1514 public CharSequence getText() { 1515 return mText; 1516 } 1517 1518 /** 1519 * Returns the length, in characters, of the text managed by this TextView 1520 */ 1521 public int length() { 1522 return mText.length(); 1523 } 1524 1525 /** 1526 * Return the text the TextView is displaying as an Editable object. If 1527 * the text is not editable, null is returned. 1528 * 1529 * @see #getText 1530 */ 1531 public Editable getEditableText() { 1532 return (mText instanceof Editable) ? (Editable)mText : null; 1533 } 1534 1535 /** 1536 * @return the height of one standard line in pixels. Note that markup 1537 * within the text can cause individual lines to be taller or shorter 1538 * than this height, and the layout may contain additional first- 1539 * or last-line padding. 1540 */ 1541 public int getLineHeight() { 1542 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 1543 } 1544 1545 /** 1546 * @return the Layout that is currently being used to display the text. 1547 * This can be null if the text or width has recently changes. 1548 */ 1549 public final Layout getLayout() { 1550 return mLayout; 1551 } 1552 1553 /** 1554 * @return the Layout that is currently being used to display the hint text. 1555 * This can be null. 1556 */ 1557 final Layout getHintLayout() { 1558 return mHintLayout; 1559 } 1560 1561 /** 1562 * Retrieve the {@link android.content.UndoManager} that is currently associated 1563 * with this TextView. By default there is no associated UndoManager, so null 1564 * is returned. One can be associated with the TextView through 1565 * {@link #setUndoManager(android.content.UndoManager, String)} 1566 * 1567 * @hide 1568 */ 1569 public final UndoManager getUndoManager() { 1570 return mEditor == null ? null : mEditor.mUndoManager; 1571 } 1572 1573 /** 1574 * Associate an {@link android.content.UndoManager} with this TextView. Once 1575 * done, all edit operations on the TextView will result in appropriate 1576 * {@link android.content.UndoOperation} objects pushed on the given UndoManager's 1577 * stack. 1578 * 1579 * @param undoManager The {@link android.content.UndoManager} to associate with 1580 * this TextView, or null to clear any existing association. 1581 * @param tag String tag identifying this particular TextView owner in the 1582 * UndoManager. This is used to keep the correct association with the 1583 * {@link android.content.UndoOwner} of any operations inside of the UndoManager. 1584 * 1585 * @hide 1586 */ 1587 public final void setUndoManager(UndoManager undoManager, String tag) { 1588 if (undoManager != null) { 1589 createEditorIfNeeded(); 1590 mEditor.mUndoManager = undoManager; 1591 mEditor.mUndoOwner = undoManager.getOwner(tag, this); 1592 mEditor.mUndoInputFilter = new Editor.UndoInputFilter(mEditor); 1593 if (!(mText instanceof Editable)) { 1594 setText(mText, BufferType.EDITABLE); 1595 } 1596 1597 setFilters((Editable) mText, mFilters); 1598 } else if (mEditor != null) { 1599 // XXX need to destroy all associated state. 1600 mEditor.mUndoManager = null; 1601 mEditor.mUndoOwner = null; 1602 mEditor.mUndoInputFilter = null; 1603 } 1604 } 1605 1606 /** 1607 * @return the current key listener for this TextView. 1608 * This will frequently be null for non-EditText TextViews. 1609 * 1610 * @attr ref android.R.styleable#TextView_numeric 1611 * @attr ref android.R.styleable#TextView_digits 1612 * @attr ref android.R.styleable#TextView_phoneNumber 1613 * @attr ref android.R.styleable#TextView_inputMethod 1614 * @attr ref android.R.styleable#TextView_capitalize 1615 * @attr ref android.R.styleable#TextView_autoText 1616 */ 1617 public final KeyListener getKeyListener() { 1618 return mEditor == null ? null : mEditor.mKeyListener; 1619 } 1620 1621 /** 1622 * Sets the key listener to be used with this TextView. This can be null 1623 * to disallow user input. Note that this method has significant and 1624 * subtle interactions with soft keyboards and other input method: 1625 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1626 * for important details. Calling this method will replace the current 1627 * content type of the text view with the content type returned by the 1628 * key listener. 1629 * <p> 1630 * Be warned that if you want a TextView with a key listener or movement 1631 * method not to be focusable, or if you want a TextView without a 1632 * key listener or movement method to be focusable, you must call 1633 * {@link #setFocusable} again after calling this to get the focusability 1634 * back the way you want it. 1635 * 1636 * @attr ref android.R.styleable#TextView_numeric 1637 * @attr ref android.R.styleable#TextView_digits 1638 * @attr ref android.R.styleable#TextView_phoneNumber 1639 * @attr ref android.R.styleable#TextView_inputMethod 1640 * @attr ref android.R.styleable#TextView_capitalize 1641 * @attr ref android.R.styleable#TextView_autoText 1642 */ 1643 public void setKeyListener(KeyListener input) { 1644 setKeyListenerOnly(input); 1645 fixFocusableAndClickableSettings(); 1646 1647 if (input != null) { 1648 createEditorIfNeeded(); 1649 try { 1650 mEditor.mInputType = mEditor.mKeyListener.getInputType(); 1651 } catch (IncompatibleClassChangeError e) { 1652 mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT; 1653 } 1654 // Change inputType, without affecting transformation. 1655 // No need to applySingleLine since mSingleLine is unchanged. 1656 setInputTypeSingleLine(mSingleLine); 1657 } else { 1658 if (mEditor != null) mEditor.mInputType = EditorInfo.TYPE_NULL; 1659 } 1660 1661 InputMethodManager imm = InputMethodManager.peekInstance(); 1662 if (imm != null) imm.restartInput(this); 1663 } 1664 1665 private void setKeyListenerOnly(KeyListener input) { 1666 if (mEditor == null && input == null) return; // null is the default value 1667 1668 createEditorIfNeeded(); 1669 if (mEditor.mKeyListener != input) { 1670 mEditor.mKeyListener = input; 1671 if (input != null && !(mText instanceof Editable)) { 1672 setText(mText); 1673 } 1674 1675 setFilters((Editable) mText, mFilters); 1676 } 1677 } 1678 1679 /** 1680 * @return the movement method being used for this TextView. 1681 * This will frequently be null for non-EditText TextViews. 1682 */ 1683 public final MovementMethod getMovementMethod() { 1684 return mMovement; 1685 } 1686 1687 /** 1688 * Sets the movement method (arrow key handler) to be used for 1689 * this TextView. This can be null to disallow using the arrow keys 1690 * to move the cursor or scroll the view. 1691 * <p> 1692 * Be warned that if you want a TextView with a key listener or movement 1693 * method not to be focusable, or if you want a TextView without a 1694 * key listener or movement method to be focusable, you must call 1695 * {@link #setFocusable} again after calling this to get the focusability 1696 * back the way you want it. 1697 */ 1698 public final void setMovementMethod(MovementMethod movement) { 1699 if (mMovement != movement) { 1700 mMovement = movement; 1701 1702 if (movement != null && !(mText instanceof Spannable)) { 1703 setText(mText); 1704 } 1705 1706 fixFocusableAndClickableSettings(); 1707 1708 // SelectionModifierCursorController depends on textCanBeSelected, which depends on 1709 // mMovement 1710 if (mEditor != null) mEditor.prepareCursorControllers(); 1711 } 1712 } 1713 1714 private void fixFocusableAndClickableSettings() { 1715 if (mMovement != null || (mEditor != null && mEditor.mKeyListener != null)) { 1716 setFocusable(true); 1717 setClickable(true); 1718 setLongClickable(true); 1719 } else { 1720 setFocusable(false); 1721 setClickable(false); 1722 setLongClickable(false); 1723 } 1724 } 1725 1726 /** 1727 * @return the current transformation method for this TextView. 1728 * This will frequently be null except for single-line and password 1729 * fields. 1730 * 1731 * @attr ref android.R.styleable#TextView_password 1732 * @attr ref android.R.styleable#TextView_singleLine 1733 */ 1734 public final TransformationMethod getTransformationMethod() { 1735 return mTransformation; 1736 } 1737 1738 /** 1739 * Sets the transformation that is applied to the text that this 1740 * TextView is displaying. 1741 * 1742 * @attr ref android.R.styleable#TextView_password 1743 * @attr ref android.R.styleable#TextView_singleLine 1744 */ 1745 public final void setTransformationMethod(TransformationMethod method) { 1746 if (method == mTransformation) { 1747 // Avoid the setText() below if the transformation is 1748 // the same. 1749 return; 1750 } 1751 if (mTransformation != null) { 1752 if (mText instanceof Spannable) { 1753 ((Spannable) mText).removeSpan(mTransformation); 1754 } 1755 } 1756 1757 mTransformation = method; 1758 1759 if (method instanceof TransformationMethod2) { 1760 TransformationMethod2 method2 = (TransformationMethod2) method; 1761 mAllowTransformationLengthChange = !isTextSelectable() && !(mText instanceof Editable); 1762 method2.setLengthChangesAllowed(mAllowTransformationLengthChange); 1763 } else { 1764 mAllowTransformationLengthChange = false; 1765 } 1766 1767 setText(mText); 1768 1769 if (hasPasswordTransformationMethod()) { 1770 notifyViewAccessibilityStateChangedIfNeeded( 1771 AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED); 1772 } 1773 } 1774 1775 /** 1776 * Returns the top padding of the view, plus space for the top 1777 * Drawable if any. 1778 */ 1779 public int getCompoundPaddingTop() { 1780 final Drawables dr = mDrawables; 1781 if (dr == null || dr.mDrawableTop == null) { 1782 return mPaddingTop; 1783 } else { 1784 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1785 } 1786 } 1787 1788 /** 1789 * Returns the bottom padding of the view, plus space for the bottom 1790 * Drawable if any. 1791 */ 1792 public int getCompoundPaddingBottom() { 1793 final Drawables dr = mDrawables; 1794 if (dr == null || dr.mDrawableBottom == null) { 1795 return mPaddingBottom; 1796 } else { 1797 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1798 } 1799 } 1800 1801 /** 1802 * Returns the left padding of the view, plus space for the left 1803 * Drawable if any. 1804 */ 1805 public int getCompoundPaddingLeft() { 1806 final Drawables dr = mDrawables; 1807 if (dr == null || dr.mDrawableLeft == null) { 1808 return mPaddingLeft; 1809 } else { 1810 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1811 } 1812 } 1813 1814 /** 1815 * Returns the right padding of the view, plus space for the right 1816 * Drawable if any. 1817 */ 1818 public int getCompoundPaddingRight() { 1819 final Drawables dr = mDrawables; 1820 if (dr == null || dr.mDrawableRight == null) { 1821 return mPaddingRight; 1822 } else { 1823 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1824 } 1825 } 1826 1827 /** 1828 * Returns the start padding of the view, plus space for the start 1829 * Drawable if any. 1830 */ 1831 public int getCompoundPaddingStart() { 1832 resolveDrawables(); 1833 switch(getLayoutDirection()) { 1834 default: 1835 case LAYOUT_DIRECTION_LTR: 1836 return getCompoundPaddingLeft(); 1837 case LAYOUT_DIRECTION_RTL: 1838 return getCompoundPaddingRight(); 1839 } 1840 } 1841 1842 /** 1843 * Returns the end padding of the view, plus space for the end 1844 * Drawable if any. 1845 */ 1846 public int getCompoundPaddingEnd() { 1847 resolveDrawables(); 1848 switch(getLayoutDirection()) { 1849 default: 1850 case LAYOUT_DIRECTION_LTR: 1851 return getCompoundPaddingRight(); 1852 case LAYOUT_DIRECTION_RTL: 1853 return getCompoundPaddingLeft(); 1854 } 1855 } 1856 1857 /** 1858 * Returns the extended top padding of the view, including both the 1859 * top Drawable if any and any extra space to keep more than maxLines 1860 * of text from showing. It is only valid to call this after measuring. 1861 */ 1862 public int getExtendedPaddingTop() { 1863 if (mMaxMode != LINES) { 1864 return getCompoundPaddingTop(); 1865 } 1866 1867 if (mLayout == null) { 1868 assumeLayout(); 1869 } 1870 1871 if (mLayout.getLineCount() <= mMaximum) { 1872 return getCompoundPaddingTop(); 1873 } 1874 1875 int top = getCompoundPaddingTop(); 1876 int bottom = getCompoundPaddingBottom(); 1877 int viewht = getHeight() - top - bottom; 1878 int layoutht = mLayout.getLineTop(mMaximum); 1879 1880 if (layoutht >= viewht) { 1881 return top; 1882 } 1883 1884 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1885 if (gravity == Gravity.TOP) { 1886 return top; 1887 } else if (gravity == Gravity.BOTTOM) { 1888 return top + viewht - layoutht; 1889 } else { // (gravity == Gravity.CENTER_VERTICAL) 1890 return top + (viewht - layoutht) / 2; 1891 } 1892 } 1893 1894 /** 1895 * Returns the extended bottom padding of the view, including both the 1896 * bottom Drawable if any and any extra space to keep more than maxLines 1897 * of text from showing. It is only valid to call this after measuring. 1898 */ 1899 public int getExtendedPaddingBottom() { 1900 if (mMaxMode != LINES) { 1901 return getCompoundPaddingBottom(); 1902 } 1903 1904 if (mLayout == null) { 1905 assumeLayout(); 1906 } 1907 1908 if (mLayout.getLineCount() <= mMaximum) { 1909 return getCompoundPaddingBottom(); 1910 } 1911 1912 int top = getCompoundPaddingTop(); 1913 int bottom = getCompoundPaddingBottom(); 1914 int viewht = getHeight() - top - bottom; 1915 int layoutht = mLayout.getLineTop(mMaximum); 1916 1917 if (layoutht >= viewht) { 1918 return bottom; 1919 } 1920 1921 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1922 if (gravity == Gravity.TOP) { 1923 return bottom + viewht - layoutht; 1924 } else if (gravity == Gravity.BOTTOM) { 1925 return bottom; 1926 } else { // (gravity == Gravity.CENTER_VERTICAL) 1927 return bottom + (viewht - layoutht) / 2; 1928 } 1929 } 1930 1931 /** 1932 * Returns the total left padding of the view, including the left 1933 * Drawable if any. 1934 */ 1935 public int getTotalPaddingLeft() { 1936 return getCompoundPaddingLeft(); 1937 } 1938 1939 /** 1940 * Returns the total right padding of the view, including the right 1941 * Drawable if any. 1942 */ 1943 public int getTotalPaddingRight() { 1944 return getCompoundPaddingRight(); 1945 } 1946 1947 /** 1948 * Returns the total start padding of the view, including the start 1949 * Drawable if any. 1950 */ 1951 public int getTotalPaddingStart() { 1952 return getCompoundPaddingStart(); 1953 } 1954 1955 /** 1956 * Returns the total end padding of the view, including the end 1957 * Drawable if any. 1958 */ 1959 public int getTotalPaddingEnd() { 1960 return getCompoundPaddingEnd(); 1961 } 1962 1963 /** 1964 * Returns the total top padding of the view, including the top 1965 * Drawable if any, the extra space to keep more than maxLines 1966 * from showing, and the vertical offset for gravity, if any. 1967 */ 1968 public int getTotalPaddingTop() { 1969 return getExtendedPaddingTop() + getVerticalOffset(true); 1970 } 1971 1972 /** 1973 * Returns the total bottom padding of the view, including the bottom 1974 * Drawable if any, the extra space to keep more than maxLines 1975 * from showing, and the vertical offset for gravity, if any. 1976 */ 1977 public int getTotalPaddingBottom() { 1978 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1979 } 1980 1981 /** 1982 * Sets the Drawables (if any) to appear to the left of, above, to the 1983 * right of, and below the text. Use {@code null} if you do not want a 1984 * Drawable there. The Drawables must already have had 1985 * {@link Drawable#setBounds} called. 1986 * <p> 1987 * Calling this method will overwrite any Drawables previously set using 1988 * {@link #setCompoundDrawablesRelative} or related methods. 1989 * 1990 * @attr ref android.R.styleable#TextView_drawableLeft 1991 * @attr ref android.R.styleable#TextView_drawableTop 1992 * @attr ref android.R.styleable#TextView_drawableRight 1993 * @attr ref android.R.styleable#TextView_drawableBottom 1994 */ 1995 public void setCompoundDrawables(@Nullable Drawable left, @Nullable Drawable top, 1996 @Nullable Drawable right, @Nullable Drawable bottom) { 1997 Drawables dr = mDrawables; 1998 1999 // We're switching to absolute, discard relative. 2000 if (dr != null) { 2001 if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null); 2002 dr.mDrawableStart = null; 2003 if (dr.mDrawableEnd != null) dr.mDrawableEnd.setCallback(null); 2004 dr.mDrawableEnd = null; 2005 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 2006 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 2007 } 2008 2009 final boolean drawables = left != null || top != null || right != null || bottom != null; 2010 if (!drawables) { 2011 // Clearing drawables... can we free the data structure? 2012 if (dr != null) { 2013 if (dr.mDrawablePadding == 0) { 2014 mDrawables = null; 2015 } else { 2016 // We need to retain the last set padding, so just clear 2017 // out all of the fields in the existing structure. 2018 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 2019 dr.mDrawableLeft = null; 2020 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 2021 dr.mDrawableTop = null; 2022 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 2023 dr.mDrawableRight = null; 2024 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 2025 dr.mDrawableBottom = null; 2026 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 2027 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 2028 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2029 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2030 } 2031 } 2032 } else { 2033 if (dr == null) { 2034 mDrawables = dr = new Drawables(getContext()); 2035 } 2036 2037 mDrawables.mOverride = false; 2038 2039 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 2040 dr.mDrawableLeft.setCallback(null); 2041 } 2042 dr.mDrawableLeft = left; 2043 2044 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 2045 dr.mDrawableTop.setCallback(null); 2046 } 2047 dr.mDrawableTop = top; 2048 2049 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 2050 dr.mDrawableRight.setCallback(null); 2051 } 2052 dr.mDrawableRight = right; 2053 2054 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 2055 dr.mDrawableBottom.setCallback(null); 2056 } 2057 dr.mDrawableBottom = bottom; 2058 2059 final Rect compoundRect = dr.mCompoundRect; 2060 int[] state; 2061 2062 state = getDrawableState(); 2063 2064 if (left != null) { 2065 left.setState(state); 2066 left.copyBounds(compoundRect); 2067 left.setCallback(this); 2068 dr.mDrawableSizeLeft = compoundRect.width(); 2069 dr.mDrawableHeightLeft = compoundRect.height(); 2070 } else { 2071 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 2072 } 2073 2074 if (right != null) { 2075 right.setState(state); 2076 right.copyBounds(compoundRect); 2077 right.setCallback(this); 2078 dr.mDrawableSizeRight = compoundRect.width(); 2079 dr.mDrawableHeightRight = compoundRect.height(); 2080 } else { 2081 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 2082 } 2083 2084 if (top != null) { 2085 top.setState(state); 2086 top.copyBounds(compoundRect); 2087 top.setCallback(this); 2088 dr.mDrawableSizeTop = compoundRect.height(); 2089 dr.mDrawableWidthTop = compoundRect.width(); 2090 } else { 2091 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2092 } 2093 2094 if (bottom != null) { 2095 bottom.setState(state); 2096 bottom.copyBounds(compoundRect); 2097 bottom.setCallback(this); 2098 dr.mDrawableSizeBottom = compoundRect.height(); 2099 dr.mDrawableWidthBottom = compoundRect.width(); 2100 } else { 2101 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2102 } 2103 } 2104 2105 // Save initial left/right drawables 2106 if (dr != null) { 2107 dr.mDrawableLeftInitial = left; 2108 dr.mDrawableRightInitial = right; 2109 } 2110 2111 resetResolvedDrawables(); 2112 resolveDrawables(); 2113 invalidate(); 2114 requestLayout(); 2115 } 2116 2117 /** 2118 * Sets the Drawables (if any) to appear to the left of, above, to the 2119 * right of, and below the text. Use 0 if you do not want a Drawable there. 2120 * The Drawables' bounds will be set to their intrinsic bounds. 2121 * <p> 2122 * Calling this method will overwrite any Drawables previously set using 2123 * {@link #setCompoundDrawablesRelative} or related methods. 2124 * 2125 * @param left Resource identifier of the left Drawable. 2126 * @param top Resource identifier of the top Drawable. 2127 * @param right Resource identifier of the right Drawable. 2128 * @param bottom Resource identifier of the bottom Drawable. 2129 * 2130 * @attr ref android.R.styleable#TextView_drawableLeft 2131 * @attr ref android.R.styleable#TextView_drawableTop 2132 * @attr ref android.R.styleable#TextView_drawableRight 2133 * @attr ref android.R.styleable#TextView_drawableBottom 2134 */ 2135 @android.view.RemotableViewMethod 2136 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 2137 final Context context = getContext(); 2138 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? context.getDrawable(left) : null, 2139 top != 0 ? context.getDrawable(top) : null, 2140 right != 0 ? context.getDrawable(right) : null, 2141 bottom != 0 ? context.getDrawable(bottom) : null); 2142 } 2143 2144 /** 2145 * Sets the Drawables (if any) to appear to the left of, above, to the 2146 * right of, and below the text. Use {@code null} if you do not want a 2147 * Drawable there. The Drawables' bounds will be set to their intrinsic 2148 * bounds. 2149 * <p> 2150 * Calling this method will overwrite any Drawables previously set using 2151 * {@link #setCompoundDrawablesRelative} or related methods. 2152 * 2153 * @attr ref android.R.styleable#TextView_drawableLeft 2154 * @attr ref android.R.styleable#TextView_drawableTop 2155 * @attr ref android.R.styleable#TextView_drawableRight 2156 * @attr ref android.R.styleable#TextView_drawableBottom 2157 */ 2158 public void setCompoundDrawablesWithIntrinsicBounds(@Nullable Drawable left, 2159 @Nullable Drawable top, @Nullable Drawable right, @Nullable Drawable bottom) { 2160 2161 if (left != null) { 2162 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 2163 } 2164 if (right != null) { 2165 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 2166 } 2167 if (top != null) { 2168 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 2169 } 2170 if (bottom != null) { 2171 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 2172 } 2173 setCompoundDrawables(left, top, right, bottom); 2174 } 2175 2176 /** 2177 * Sets the Drawables (if any) to appear to the start of, above, to the end 2178 * of, and below the text. Use {@code null} if you do not want a Drawable 2179 * there. The Drawables must already have had {@link Drawable#setBounds} 2180 * called. 2181 * <p> 2182 * Calling this method will overwrite any Drawables previously set using 2183 * {@link #setCompoundDrawables} or related methods. 2184 * 2185 * @attr ref android.R.styleable#TextView_drawableStart 2186 * @attr ref android.R.styleable#TextView_drawableTop 2187 * @attr ref android.R.styleable#TextView_drawableEnd 2188 * @attr ref android.R.styleable#TextView_drawableBottom 2189 */ 2190 public void setCompoundDrawablesRelative(@Nullable Drawable start, @Nullable Drawable top, 2191 @Nullable Drawable end, @Nullable Drawable bottom) { 2192 Drawables dr = mDrawables; 2193 2194 // We're switching to relative, discard absolute. 2195 if (dr != null) { 2196 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 2197 dr.mDrawableLeft = dr.mDrawableLeftInitial = null; 2198 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 2199 dr.mDrawableRight = dr.mDrawableRightInitial = null; 2200 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 2201 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 2202 } 2203 2204 final boolean drawables = start != null || top != null 2205 || end != null || bottom != null; 2206 2207 if (!drawables) { 2208 // Clearing drawables... can we free the data structure? 2209 if (dr != null) { 2210 if (dr.mDrawablePadding == 0) { 2211 mDrawables = null; 2212 } else { 2213 // We need to retain the last set padding, so just clear 2214 // out all of the fields in the existing structure. 2215 if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null); 2216 dr.mDrawableStart = null; 2217 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 2218 dr.mDrawableTop = null; 2219 if (dr.mDrawableEnd != null) dr.mDrawableEnd.setCallback(null); 2220 dr.mDrawableEnd = null; 2221 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 2222 dr.mDrawableBottom = null; 2223 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 2224 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 2225 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2226 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2227 } 2228 } 2229 } else { 2230 if (dr == null) { 2231 mDrawables = dr = new Drawables(getContext()); 2232 } 2233 2234 mDrawables.mOverride = true; 2235 2236 if (dr.mDrawableStart != start && dr.mDrawableStart != null) { 2237 dr.mDrawableStart.setCallback(null); 2238 } 2239 dr.mDrawableStart = start; 2240 2241 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 2242 dr.mDrawableTop.setCallback(null); 2243 } 2244 dr.mDrawableTop = top; 2245 2246 if (dr.mDrawableEnd != end && dr.mDrawableEnd != null) { 2247 dr.mDrawableEnd.setCallback(null); 2248 } 2249 dr.mDrawableEnd = end; 2250 2251 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 2252 dr.mDrawableBottom.setCallback(null); 2253 } 2254 dr.mDrawableBottom = bottom; 2255 2256 final Rect compoundRect = dr.mCompoundRect; 2257 int[] state; 2258 2259 state = getDrawableState(); 2260 2261 if (start != null) { 2262 start.setState(state); 2263 start.copyBounds(compoundRect); 2264 start.setCallback(this); 2265 dr.mDrawableSizeStart = compoundRect.width(); 2266 dr.mDrawableHeightStart = compoundRect.height(); 2267 } else { 2268 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 2269 } 2270 2271 if (end != null) { 2272 end.setState(state); 2273 end.copyBounds(compoundRect); 2274 end.setCallback(this); 2275 dr.mDrawableSizeEnd = compoundRect.width(); 2276 dr.mDrawableHeightEnd = compoundRect.height(); 2277 } else { 2278 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 2279 } 2280 2281 if (top != null) { 2282 top.setState(state); 2283 top.copyBounds(compoundRect); 2284 top.setCallback(this); 2285 dr.mDrawableSizeTop = compoundRect.height(); 2286 dr.mDrawableWidthTop = compoundRect.width(); 2287 } else { 2288 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2289 } 2290 2291 if (bottom != null) { 2292 bottom.setState(state); 2293 bottom.copyBounds(compoundRect); 2294 bottom.setCallback(this); 2295 dr.mDrawableSizeBottom = compoundRect.height(); 2296 dr.mDrawableWidthBottom = compoundRect.width(); 2297 } else { 2298 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2299 } 2300 } 2301 2302 resetResolvedDrawables(); 2303 resolveDrawables(); 2304 invalidate(); 2305 requestLayout(); 2306 } 2307 2308 /** 2309 * Sets the Drawables (if any) to appear to the start of, above, to the end 2310 * of, and below the text. Use 0 if you do not want a Drawable there. The 2311 * Drawables' bounds will be set to their intrinsic bounds. 2312 * <p> 2313 * Calling this method will overwrite any Drawables previously set using 2314 * {@link #setCompoundDrawables} or related methods. 2315 * 2316 * @param start Resource identifier of the start Drawable. 2317 * @param top Resource identifier of the top Drawable. 2318 * @param end Resource identifier of the end Drawable. 2319 * @param bottom Resource identifier of the bottom Drawable. 2320 * 2321 * @attr ref android.R.styleable#TextView_drawableStart 2322 * @attr ref android.R.styleable#TextView_drawableTop 2323 * @attr ref android.R.styleable#TextView_drawableEnd 2324 * @attr ref android.R.styleable#TextView_drawableBottom 2325 */ 2326 @android.view.RemotableViewMethod 2327 public void setCompoundDrawablesRelativeWithIntrinsicBounds(int start, int top, int end, 2328 int bottom) { 2329 final Context context = getContext(); 2330 setCompoundDrawablesRelativeWithIntrinsicBounds( 2331 start != 0 ? context.getDrawable(start) : null, 2332 top != 0 ? context.getDrawable(top) : null, 2333 end != 0 ? context.getDrawable(end) : null, 2334 bottom != 0 ? context.getDrawable(bottom) : null); 2335 } 2336 2337 /** 2338 * Sets the Drawables (if any) to appear to the start of, above, to the end 2339 * of, and below the text. Use {@code null} if you do not want a Drawable 2340 * there. The Drawables' bounds will be set to their intrinsic bounds. 2341 * <p> 2342 * Calling this method will overwrite any Drawables previously set using 2343 * {@link #setCompoundDrawables} or related methods. 2344 * 2345 * @attr ref android.R.styleable#TextView_drawableStart 2346 * @attr ref android.R.styleable#TextView_drawableTop 2347 * @attr ref android.R.styleable#TextView_drawableEnd 2348 * @attr ref android.R.styleable#TextView_drawableBottom 2349 */ 2350 public void setCompoundDrawablesRelativeWithIntrinsicBounds(@Nullable Drawable start, 2351 @Nullable Drawable top, @Nullable Drawable end, @Nullable Drawable bottom) { 2352 2353 if (start != null) { 2354 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 2355 } 2356 if (end != null) { 2357 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 2358 } 2359 if (top != null) { 2360 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 2361 } 2362 if (bottom != null) { 2363 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 2364 } 2365 setCompoundDrawablesRelative(start, top, end, bottom); 2366 } 2367 2368 /** 2369 * Returns drawables for the left, top, right, and bottom borders. 2370 * 2371 * @attr ref android.R.styleable#TextView_drawableLeft 2372 * @attr ref android.R.styleable#TextView_drawableTop 2373 * @attr ref android.R.styleable#TextView_drawableRight 2374 * @attr ref android.R.styleable#TextView_drawableBottom 2375 */ 2376 @NonNull 2377 public Drawable[] getCompoundDrawables() { 2378 final Drawables dr = mDrawables; 2379 if (dr != null) { 2380 return new Drawable[] { 2381 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 2382 }; 2383 } else { 2384 return new Drawable[] { null, null, null, null }; 2385 } 2386 } 2387 2388 /** 2389 * Returns drawables for the start, top, end, and bottom borders. 2390 * 2391 * @attr ref android.R.styleable#TextView_drawableStart 2392 * @attr ref android.R.styleable#TextView_drawableTop 2393 * @attr ref android.R.styleable#TextView_drawableEnd 2394 * @attr ref android.R.styleable#TextView_drawableBottom 2395 */ 2396 @NonNull 2397 public Drawable[] getCompoundDrawablesRelative() { 2398 final Drawables dr = mDrawables; 2399 if (dr != null) { 2400 return new Drawable[] { 2401 dr.mDrawableStart, dr.mDrawableTop, dr.mDrawableEnd, dr.mDrawableBottom 2402 }; 2403 } else { 2404 return new Drawable[] { null, null, null, null }; 2405 } 2406 } 2407 2408 /** 2409 * Sets the size of the padding between the compound drawables and 2410 * the text. 2411 * 2412 * @attr ref android.R.styleable#TextView_drawablePadding 2413 */ 2414 @android.view.RemotableViewMethod 2415 public void setCompoundDrawablePadding(int pad) { 2416 Drawables dr = mDrawables; 2417 if (pad == 0) { 2418 if (dr != null) { 2419 dr.mDrawablePadding = pad; 2420 } 2421 } else { 2422 if (dr == null) { 2423 mDrawables = dr = new Drawables(getContext()); 2424 } 2425 dr.mDrawablePadding = pad; 2426 } 2427 2428 invalidate(); 2429 requestLayout(); 2430 } 2431 2432 /** 2433 * Returns the padding between the compound drawables and the text. 2434 * 2435 * @attr ref android.R.styleable#TextView_drawablePadding 2436 */ 2437 public int getCompoundDrawablePadding() { 2438 final Drawables dr = mDrawables; 2439 return dr != null ? dr.mDrawablePadding : 0; 2440 } 2441 2442 @Override 2443 public void setPadding(int left, int top, int right, int bottom) { 2444 if (left != mPaddingLeft || 2445 right != mPaddingRight || 2446 top != mPaddingTop || 2447 bottom != mPaddingBottom) { 2448 nullLayouts(); 2449 } 2450 2451 // the super call will requestLayout() 2452 super.setPadding(left, top, right, bottom); 2453 invalidate(); 2454 } 2455 2456 @Override 2457 public void setPaddingRelative(int start, int top, int end, int bottom) { 2458 if (start != getPaddingStart() || 2459 end != getPaddingEnd() || 2460 top != mPaddingTop || 2461 bottom != mPaddingBottom) { 2462 nullLayouts(); 2463 } 2464 2465 // the super call will requestLayout() 2466 super.setPaddingRelative(start, top, end, bottom); 2467 invalidate(); 2468 } 2469 2470 /** 2471 * Gets the autolink mask of the text. See {@link 2472 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2473 * possible values. 2474 * 2475 * @attr ref android.R.styleable#TextView_autoLink 2476 */ 2477 public final int getAutoLinkMask() { 2478 return mAutoLinkMask; 2479 } 2480 2481 /** 2482 * Sets the text color, size, style, hint color, and highlight color 2483 * from the specified TextAppearance resource. 2484 */ 2485 public void setTextAppearance(Context context, int resid) { 2486 TypedArray appearance = 2487 context.obtainStyledAttributes(resid, 2488 com.android.internal.R.styleable.TextAppearance); 2489 2490 int color; 2491 ColorStateList colors; 2492 int ts; 2493 2494 color = appearance.getColor( 2495 com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 2496 if (color != 0) { 2497 setHighlightColor(color); 2498 } 2499 2500 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2501 TextAppearance_textColor); 2502 if (colors != null) { 2503 setTextColor(colors); 2504 } 2505 2506 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 2507 TextAppearance_textSize, 0); 2508 if (ts != 0) { 2509 setRawTextSize(ts); 2510 } 2511 2512 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2513 TextAppearance_textColorHint); 2514 if (colors != null) { 2515 setHintTextColor(colors); 2516 } 2517 2518 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2519 TextAppearance_textColorLink); 2520 if (colors != null) { 2521 setLinkTextColor(colors); 2522 } 2523 2524 String familyName; 2525 int typefaceIndex, styleIndex; 2526 2527 familyName = appearance.getString(com.android.internal.R.styleable. 2528 TextAppearance_fontFamily); 2529 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 2530 TextAppearance_typeface, -1); 2531 styleIndex = appearance.getInt(com.android.internal.R.styleable. 2532 TextAppearance_textStyle, -1); 2533 2534 setTypefaceFromAttrs(familyName, typefaceIndex, styleIndex); 2535 2536 final int shadowcolor = appearance.getInt( 2537 com.android.internal.R.styleable.TextAppearance_shadowColor, 0); 2538 if (shadowcolor != 0) { 2539 final float dx = appearance.getFloat( 2540 com.android.internal.R.styleable.TextAppearance_shadowDx, 0); 2541 final float dy = appearance.getFloat( 2542 com.android.internal.R.styleable.TextAppearance_shadowDy, 0); 2543 final float r = appearance.getFloat( 2544 com.android.internal.R.styleable.TextAppearance_shadowRadius, 0); 2545 2546 setShadowLayer(r, dx, dy, shadowcolor); 2547 } 2548 2549 if (appearance.getBoolean(com.android.internal.R.styleable.TextAppearance_textAllCaps, 2550 false)) { 2551 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 2552 } 2553 2554 if (appearance.hasValue(com.android.internal.R.styleable.TextAppearance_elegantTextHeight)) { 2555 setElegantTextHeight(appearance.getBoolean( 2556 com.android.internal.R.styleable.TextAppearance_elegantTextHeight, false)); 2557 } 2558 2559 if (appearance.hasValue(com.android.internal.R.styleable.TextAppearance_letterSpacing)) { 2560 setLetterSpacing(appearance.getFloat( 2561 com.android.internal.R.styleable.TextAppearance_letterSpacing, 0)); 2562 } 2563 2564 if (appearance.hasValue(com.android.internal.R.styleable.TextAppearance_fontFeatureSettings)) { 2565 setFontFeatureSettings(appearance.getString( 2566 com.android.internal.R.styleable.TextAppearance_fontFeatureSettings)); 2567 } 2568 2569 appearance.recycle(); 2570 } 2571 2572 /** 2573 * Get the default {@link Locale} of the text in this TextView. 2574 * @return the default {@link Locale} of the text in this TextView. 2575 */ 2576 public Locale getTextLocale() { 2577 return mTextPaint.getTextLocale(); 2578 } 2579 2580 /** 2581 * Set the default {@link Locale} of the text in this TextView to the given value. This value 2582 * is used to choose appropriate typefaces for ambiguous characters. Typically used for CJK 2583 * locales to disambiguate Hanzi/Kanji/Hanja characters. 2584 * 2585 * @param locale the {@link Locale} for drawing text, must not be null. 2586 * 2587 * @see Paint#setTextLocale 2588 */ 2589 public void setTextLocale(Locale locale) { 2590 mTextPaint.setTextLocale(locale); 2591 } 2592 2593 /** 2594 * @return the size (in pixels) of the default text size in this TextView. 2595 */ 2596 @ViewDebug.ExportedProperty(category = "text") 2597 public float getTextSize() { 2598 return mTextPaint.getTextSize(); 2599 } 2600 2601 /** 2602 * @return the size (in scaled pixels) of thee default text size in this TextView. 2603 * @hide 2604 */ 2605 @ViewDebug.ExportedProperty(category = "text") 2606 public float getScaledTextSize() { 2607 return mTextPaint.getTextSize() / mTextPaint.density; 2608 } 2609 2610 /** @hide */ 2611 @ViewDebug.ExportedProperty(category = "text", mapping = { 2612 @ViewDebug.IntToString(from = Typeface.NORMAL, to = "NORMAL"), 2613 @ViewDebug.IntToString(from = Typeface.BOLD, to = "BOLD"), 2614 @ViewDebug.IntToString(from = Typeface.ITALIC, to = "ITALIC"), 2615 @ViewDebug.IntToString(from = Typeface.BOLD_ITALIC, to = "BOLD_ITALIC") 2616 }) 2617 public int getTypefaceStyle() { 2618 return mTextPaint.getTypeface().getStyle(); 2619 } 2620 2621 /** 2622 * Set the default text size to the given value, interpreted as "scaled 2623 * pixel" units. This size is adjusted based on the current density and 2624 * user font size preference. 2625 * 2626 * @param size The scaled pixel size. 2627 * 2628 * @attr ref android.R.styleable#TextView_textSize 2629 */ 2630 @android.view.RemotableViewMethod 2631 public void setTextSize(float size) { 2632 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 2633 } 2634 2635 /** 2636 * Set the default text size to a given unit and value. See {@link 2637 * TypedValue} for the possible dimension units. 2638 * 2639 * @param unit The desired dimension unit. 2640 * @param size The desired size in the given units. 2641 * 2642 * @attr ref android.R.styleable#TextView_textSize 2643 */ 2644 public void setTextSize(int unit, float size) { 2645 Context c = getContext(); 2646 Resources r; 2647 2648 if (c == null) 2649 r = Resources.getSystem(); 2650 else 2651 r = c.getResources(); 2652 2653 setRawTextSize(TypedValue.applyDimension( 2654 unit, size, r.getDisplayMetrics())); 2655 } 2656 2657 private void setRawTextSize(float size) { 2658 if (size != mTextPaint.getTextSize()) { 2659 mTextPaint.setTextSize(size); 2660 2661 if (mLayout != null) { 2662 nullLayouts(); 2663 requestLayout(); 2664 invalidate(); 2665 } 2666 } 2667 } 2668 2669 /** 2670 * @return the extent by which text is currently being stretched 2671 * horizontally. This will usually be 1. 2672 */ 2673 public float getTextScaleX() { 2674 return mTextPaint.getTextScaleX(); 2675 } 2676 2677 /** 2678 * Sets the extent by which text should be stretched horizontally. 2679 * 2680 * @attr ref android.R.styleable#TextView_textScaleX 2681 */ 2682 @android.view.RemotableViewMethod 2683 public void setTextScaleX(float size) { 2684 if (size != mTextPaint.getTextScaleX()) { 2685 mUserSetTextScaleX = true; 2686 mTextPaint.setTextScaleX(size); 2687 2688 if (mLayout != null) { 2689 nullLayouts(); 2690 requestLayout(); 2691 invalidate(); 2692 } 2693 } 2694 } 2695 2696 /** 2697 * Sets the typeface and style in which the text should be displayed. 2698 * Note that not all Typeface families actually have bold and italic 2699 * variants, so you may need to use 2700 * {@link #setTypeface(Typeface, int)} to get the appearance 2701 * that you actually want. 2702 * 2703 * @see #getTypeface() 2704 * 2705 * @attr ref android.R.styleable#TextView_fontFamily 2706 * @attr ref android.R.styleable#TextView_typeface 2707 * @attr ref android.R.styleable#TextView_textStyle 2708 */ 2709 public void setTypeface(Typeface tf) { 2710 if (mTextPaint.getTypeface() != tf) { 2711 mTextPaint.setTypeface(tf); 2712 2713 if (mLayout != null) { 2714 nullLayouts(); 2715 requestLayout(); 2716 invalidate(); 2717 } 2718 } 2719 } 2720 2721 /** 2722 * @return the current typeface and style in which the text is being 2723 * displayed. 2724 * 2725 * @see #setTypeface(Typeface) 2726 * 2727 * @attr ref android.R.styleable#TextView_fontFamily 2728 * @attr ref android.R.styleable#TextView_typeface 2729 * @attr ref android.R.styleable#TextView_textStyle 2730 */ 2731 public Typeface getTypeface() { 2732 return mTextPaint.getTypeface(); 2733 } 2734 2735 /** 2736 * Set the TextView's elegant height metrics flag. This setting selects font 2737 * variants that have not been compacted to fit Latin-based vertical 2738 * metrics, and also increases top and bottom bounds to provide more space. 2739 * 2740 * @param elegant set the paint's elegant metrics flag. 2741 * 2742 * @attr ref android.R.styleable#TextView_elegantTextHeight 2743 */ 2744 public void setElegantTextHeight(boolean elegant) { 2745 mTextPaint.setElegantTextHeight(elegant); 2746 } 2747 2748 /** 2749 * @return the extent by which text is currently being letter-spaced. 2750 * This will normally be 0. 2751 * 2752 * @see #setLetterSpacing(float) 2753 * @see Paint#setLetterSpacing 2754 */ 2755 public float getLetterSpacing() { 2756 return mTextPaint.getLetterSpacing(); 2757 } 2758 2759 /** 2760 * Sets text letter-spacing. The value is in 'EM' units. Typical values 2761 * for slight expansion will be around 0.05. Negative values tighten text. 2762 * 2763 * @see #getLetterSpacing() 2764 * @see Paint#getLetterSpacing 2765 * 2766 * @attr ref android.R.styleable#TextView_letterSpacing 2767 */ 2768 @android.view.RemotableViewMethod 2769 public void setLetterSpacing(float letterSpacing) { 2770 if (letterSpacing != mTextPaint.getLetterSpacing()) { 2771 mTextPaint.setLetterSpacing(letterSpacing); 2772 2773 if (mLayout != null) { 2774 nullLayouts(); 2775 requestLayout(); 2776 invalidate(); 2777 } 2778 } 2779 } 2780 2781 /** 2782 * @return the currently set font feature settings. Default is null. 2783 * 2784 * @see #setFontFeatureSettings(String) 2785 * @see Paint#setFontFeatureSettings 2786 */ 2787 @Nullable 2788 public String getFontFeatureSettings() { 2789 return mTextPaint.getFontFeatureSettings(); 2790 } 2791 2792 /** 2793 * Sets font feature settings. The format is the same as the CSS 2794 * font-feature-settings attribute: 2795 * http://dev.w3.org/csswg/css-fonts/#propdef-font-feature-settings 2796 * 2797 * @param fontFeatureSettings font feature settings represented as CSS compatible string 2798 * @see #getFontFeatureSettings() 2799 * @see Paint#getFontFeatureSettings 2800 * 2801 * @attr ref android.R.styleable#TextView_fontFeatureSettings 2802 */ 2803 @android.view.RemotableViewMethod 2804 public void setFontFeatureSettings(@Nullable String fontFeatureSettings) { 2805 if (fontFeatureSettings != mTextPaint.getFontFeatureSettings()) { 2806 mTextPaint.setFontFeatureSettings(fontFeatureSettings); 2807 2808 if (mLayout != null) { 2809 nullLayouts(); 2810 requestLayout(); 2811 invalidate(); 2812 } 2813 } 2814 } 2815 2816 2817 /** 2818 * Sets the text color for all the states (normal, selected, 2819 * focused) to be this color. 2820 * 2821 * @see #setTextColor(ColorStateList) 2822 * @see #getTextColors() 2823 * 2824 * @attr ref android.R.styleable#TextView_textColor 2825 */ 2826 @android.view.RemotableViewMethod 2827 public void setTextColor(int color) { 2828 mTextColor = ColorStateList.valueOf(color); 2829 updateTextColors(); 2830 } 2831 2832 /** 2833 * Sets the text color. 2834 * 2835 * @see #setTextColor(int) 2836 * @see #getTextColors() 2837 * @see #setHintTextColor(ColorStateList) 2838 * @see #setLinkTextColor(ColorStateList) 2839 * 2840 * @attr ref android.R.styleable#TextView_textColor 2841 */ 2842 public void setTextColor(ColorStateList colors) { 2843 if (colors == null) { 2844 throw new NullPointerException(); 2845 } 2846 2847 mTextColor = colors; 2848 updateTextColors(); 2849 } 2850 2851 /** 2852 * Gets the text colors for the different states (normal, selected, focused) of the TextView. 2853 * 2854 * @see #setTextColor(ColorStateList) 2855 * @see #setTextColor(int) 2856 * 2857 * @attr ref android.R.styleable#TextView_textColor 2858 */ 2859 public final ColorStateList getTextColors() { 2860 return mTextColor; 2861 } 2862 2863 /** 2864 * <p>Return the current color selected for normal text.</p> 2865 * 2866 * @return Returns the current text color. 2867 */ 2868 public final int getCurrentTextColor() { 2869 return mCurTextColor; 2870 } 2871 2872 /** 2873 * Sets the color used to display the selection highlight. 2874 * 2875 * @attr ref android.R.styleable#TextView_textColorHighlight 2876 */ 2877 @android.view.RemotableViewMethod 2878 public void setHighlightColor(int color) { 2879 if (mHighlightColor != color) { 2880 mHighlightColor = color; 2881 invalidate(); 2882 } 2883 } 2884 2885 /** 2886 * @return the color used to display the selection highlight 2887 * 2888 * @see #setHighlightColor(int) 2889 * 2890 * @attr ref android.R.styleable#TextView_textColorHighlight 2891 */ 2892 public int getHighlightColor() { 2893 return mHighlightColor; 2894 } 2895 2896 /** 2897 * Sets whether the soft input method will be made visible when this 2898 * TextView gets focused. The default is true. 2899 */ 2900 @android.view.RemotableViewMethod 2901 public final void setShowSoftInputOnFocus(boolean show) { 2902 createEditorIfNeeded(); 2903 mEditor.mShowSoftInputOnFocus = show; 2904 } 2905 2906 /** 2907 * Returns whether the soft input method will be made visible when this 2908 * TextView gets focused. The default is true. 2909 */ 2910 public final boolean getShowSoftInputOnFocus() { 2911 // When there is no Editor, return default true value 2912 return mEditor == null || mEditor.mShowSoftInputOnFocus; 2913 } 2914 2915 /** 2916 * Gives the text a shadow of the specified blur radius and color, the specified 2917 * distance from its drawn position. 2918 * <p> 2919 * The text shadow produced does not interact with the properties on view 2920 * that are responsible for real time shadows, 2921 * {@link View#getElevation() elevation} and 2922 * {@link View#getTranslationZ() translationZ}. 2923 * 2924 * @see Paint#setShadowLayer(float, float, float, int) 2925 * 2926 * @attr ref android.R.styleable#TextView_shadowColor 2927 * @attr ref android.R.styleable#TextView_shadowDx 2928 * @attr ref android.R.styleable#TextView_shadowDy 2929 * @attr ref android.R.styleable#TextView_shadowRadius 2930 */ 2931 public void setShadowLayer(float radius, float dx, float dy, int color) { 2932 mTextPaint.setShadowLayer(radius, dx, dy, color); 2933 2934 mShadowRadius = radius; 2935 mShadowDx = dx; 2936 mShadowDy = dy; 2937 mShadowColor = color; 2938 2939 // Will change text clip region 2940 if (mEditor != null) mEditor.invalidateTextDisplayList(); 2941 invalidate(); 2942 } 2943 2944 /** 2945 * Gets the radius of the shadow layer. 2946 * 2947 * @return the radius of the shadow layer. If 0, the shadow layer is not visible 2948 * 2949 * @see #setShadowLayer(float, float, float, int) 2950 * 2951 * @attr ref android.R.styleable#TextView_shadowRadius 2952 */ 2953 public float getShadowRadius() { 2954 return mShadowRadius; 2955 } 2956 2957 /** 2958 * @return the horizontal offset of the shadow layer 2959 * 2960 * @see #setShadowLayer(float, float, float, int) 2961 * 2962 * @attr ref android.R.styleable#TextView_shadowDx 2963 */ 2964 public float getShadowDx() { 2965 return mShadowDx; 2966 } 2967 2968 /** 2969 * @return the vertical offset of the shadow layer 2970 * 2971 * @see #setShadowLayer(float, float, float, int) 2972 * 2973 * @attr ref android.R.styleable#TextView_shadowDy 2974 */ 2975 public float getShadowDy() { 2976 return mShadowDy; 2977 } 2978 2979 /** 2980 * @return the color of the shadow layer 2981 * 2982 * @see #setShadowLayer(float, float, float, int) 2983 * 2984 * @attr ref android.R.styleable#TextView_shadowColor 2985 */ 2986 public int getShadowColor() { 2987 return mShadowColor; 2988 } 2989 2990 /** 2991 * @return the base paint used for the text. Please use this only to 2992 * consult the Paint's properties and not to change them. 2993 */ 2994 public TextPaint getPaint() { 2995 return mTextPaint; 2996 } 2997 2998 /** 2999 * Sets the autolink mask of the text. See {@link 3000 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 3001 * possible values. 3002 * 3003 * @attr ref android.R.styleable#TextView_autoLink 3004 */ 3005 @android.view.RemotableViewMethod 3006 public final void setAutoLinkMask(int mask) { 3007 mAutoLinkMask = mask; 3008 } 3009 3010 /** 3011 * Sets whether the movement method will automatically be set to 3012 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 3013 * set to nonzero and links are detected in {@link #setText}. 3014 * The default is true. 3015 * 3016 * @attr ref android.R.styleable#TextView_linksClickable 3017 */ 3018 @android.view.RemotableViewMethod 3019 public final void setLinksClickable(boolean whether) { 3020 mLinksClickable = whether; 3021 } 3022 3023 /** 3024 * Returns whether the movement method will automatically be set to 3025 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 3026 * set to nonzero and links are detected in {@link #setText}. 3027 * The default is true. 3028 * 3029 * @attr ref android.R.styleable#TextView_linksClickable 3030 */ 3031 public final boolean getLinksClickable() { 3032 return mLinksClickable; 3033 } 3034 3035 /** 3036 * Returns the list of URLSpans attached to the text 3037 * (by {@link Linkify} or otherwise) if any. You can call 3038 * {@link URLSpan#getURL} on them to find where they link to 3039 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 3040 * to find the region of the text they are attached to. 3041 */ 3042 public URLSpan[] getUrls() { 3043 if (mText instanceof Spanned) { 3044 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 3045 } else { 3046 return new URLSpan[0]; 3047 } 3048 } 3049 3050 /** 3051 * Sets the color of the hint text for all the states (disabled, focussed, selected...) of this 3052 * TextView. 3053 * 3054 * @see #setHintTextColor(ColorStateList) 3055 * @see #getHintTextColors() 3056 * @see #setTextColor(int) 3057 * 3058 * @attr ref android.R.styleable#TextView_textColorHint 3059 */ 3060 @android.view.RemotableViewMethod 3061 public final void setHintTextColor(int color) { 3062 mHintTextColor = ColorStateList.valueOf(color); 3063 updateTextColors(); 3064 } 3065 3066 /** 3067 * Sets the color of the hint text. 3068 * 3069 * @see #getHintTextColors() 3070 * @see #setHintTextColor(int) 3071 * @see #setTextColor(ColorStateList) 3072 * @see #setLinkTextColor(ColorStateList) 3073 * 3074 * @attr ref android.R.styleable#TextView_textColorHint 3075 */ 3076 public final void setHintTextColor(ColorStateList colors) { 3077 mHintTextColor = colors; 3078 updateTextColors(); 3079 } 3080 3081 /** 3082 * @return the color of the hint text, for the different states of this TextView. 3083 * 3084 * @see #setHintTextColor(ColorStateList) 3085 * @see #setHintTextColor(int) 3086 * @see #setTextColor(ColorStateList) 3087 * @see #setLinkTextColor(ColorStateList) 3088 * 3089 * @attr ref android.R.styleable#TextView_textColorHint 3090 */ 3091 public final ColorStateList getHintTextColors() { 3092 return mHintTextColor; 3093 } 3094 3095 /** 3096 * <p>Return the current color selected to paint the hint text.</p> 3097 * 3098 * @return Returns the current hint text color. 3099 */ 3100 public final int getCurrentHintTextColor() { 3101 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 3102 } 3103 3104 /** 3105 * Sets the color of links in the text. 3106 * 3107 * @see #setLinkTextColor(ColorStateList) 3108 * @see #getLinkTextColors() 3109 * 3110 * @attr ref android.R.styleable#TextView_textColorLink 3111 */ 3112 @android.view.RemotableViewMethod 3113 public final void setLinkTextColor(int color) { 3114 mLinkTextColor = ColorStateList.valueOf(color); 3115 updateTextColors(); 3116 } 3117 3118 /** 3119 * Sets the color of links in the text. 3120 * 3121 * @see #setLinkTextColor(int) 3122 * @see #getLinkTextColors() 3123 * @see #setTextColor(ColorStateList) 3124 * @see #setHintTextColor(ColorStateList) 3125 * 3126 * @attr ref android.R.styleable#TextView_textColorLink 3127 */ 3128 public final void setLinkTextColor(ColorStateList colors) { 3129 mLinkTextColor = colors; 3130 updateTextColors(); 3131 } 3132 3133 /** 3134 * @return the list of colors used to paint the links in the text, for the different states of 3135 * this TextView 3136 * 3137 * @see #setLinkTextColor(ColorStateList) 3138 * @see #setLinkTextColor(int) 3139 * 3140 * @attr ref android.R.styleable#TextView_textColorLink 3141 */ 3142 public final ColorStateList getLinkTextColors() { 3143 return mLinkTextColor; 3144 } 3145 3146 /** 3147 * Sets the horizontal alignment of the text and the 3148 * vertical gravity that will be used when there is extra space 3149 * in the TextView beyond what is required for the text itself. 3150 * 3151 * @see android.view.Gravity 3152 * @attr ref android.R.styleable#TextView_gravity 3153 */ 3154 public void setGravity(int gravity) { 3155 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 3156 gravity |= Gravity.START; 3157 } 3158 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 3159 gravity |= Gravity.TOP; 3160 } 3161 3162 boolean newLayout = false; 3163 3164 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != 3165 (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK)) { 3166 newLayout = true; 3167 } 3168 3169 if (gravity != mGravity) { 3170 invalidate(); 3171 } 3172 3173 mGravity = gravity; 3174 3175 if (mLayout != null && newLayout) { 3176 // XXX this is heavy-handed because no actual content changes. 3177 int want = mLayout.getWidth(); 3178 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 3179 3180 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 3181 mRight - mLeft - getCompoundPaddingLeft() - 3182 getCompoundPaddingRight(), true); 3183 } 3184 } 3185 3186 /** 3187 * Returns the horizontal and vertical alignment of this TextView. 3188 * 3189 * @see android.view.Gravity 3190 * @attr ref android.R.styleable#TextView_gravity 3191 */ 3192 public int getGravity() { 3193 return mGravity; 3194 } 3195 3196 /** 3197 * @return the flags on the Paint being used to display the text. 3198 * @see Paint#getFlags 3199 */ 3200 public int getPaintFlags() { 3201 return mTextPaint.getFlags(); 3202 } 3203 3204 /** 3205 * Sets flags on the Paint being used to display the text and 3206 * reflows the text if they are different from the old flags. 3207 * @see Paint#setFlags 3208 */ 3209 @android.view.RemotableViewMethod 3210 public void setPaintFlags(int flags) { 3211 if (mTextPaint.getFlags() != flags) { 3212 mTextPaint.setFlags(flags); 3213 3214 if (mLayout != null) { 3215 nullLayouts(); 3216 requestLayout(); 3217 invalidate(); 3218 } 3219 } 3220 } 3221 3222 /** 3223 * Sets whether the text should be allowed to be wider than the 3224 * View is. If false, it will be wrapped to the width of the View. 3225 * 3226 * @attr ref android.R.styleable#TextView_scrollHorizontally 3227 */ 3228 public void setHorizontallyScrolling(boolean whether) { 3229 if (mHorizontallyScrolling != whether) { 3230 mHorizontallyScrolling = whether; 3231 3232 if (mLayout != null) { 3233 nullLayouts(); 3234 requestLayout(); 3235 invalidate(); 3236 } 3237 } 3238 } 3239 3240 /** 3241 * Returns whether the text is allowed to be wider than the View is. 3242 * If false, the text will be wrapped to the width of the View. 3243 * 3244 * @attr ref android.R.styleable#TextView_scrollHorizontally 3245 * @hide 3246 */ 3247 public boolean getHorizontallyScrolling() { 3248 return mHorizontallyScrolling; 3249 } 3250 3251 /** 3252 * Makes the TextView at least this many lines tall. 3253 * 3254 * Setting this value overrides any other (minimum) height setting. A single line TextView will 3255 * set this value to 1. 3256 * 3257 * @see #getMinLines() 3258 * 3259 * @attr ref android.R.styleable#TextView_minLines 3260 */ 3261 @android.view.RemotableViewMethod 3262 public void setMinLines(int minlines) { 3263 mMinimum = minlines; 3264 mMinMode = LINES; 3265 3266 requestLayout(); 3267 invalidate(); 3268 } 3269 3270 /** 3271 * @return the minimum number of lines displayed in this TextView, or -1 if the minimum 3272 * height was set in pixels instead using {@link #setMinHeight(int) or #setHeight(int)}. 3273 * 3274 * @see #setMinLines(int) 3275 * 3276 * @attr ref android.R.styleable#TextView_minLines 3277 */ 3278 public int getMinLines() { 3279 return mMinMode == LINES ? mMinimum : -1; 3280 } 3281 3282 /** 3283 * Makes the TextView at least this many pixels tall. 3284 * 3285 * Setting this value overrides any other (minimum) number of lines setting. 3286 * 3287 * @attr ref android.R.styleable#TextView_minHeight 3288 */ 3289 @android.view.RemotableViewMethod 3290 public void setMinHeight(int minHeight) { 3291 mMinimum = minHeight; 3292 mMinMode = PIXELS; 3293 3294 requestLayout(); 3295 invalidate(); 3296 } 3297 3298 /** 3299 * @return the minimum height of this TextView expressed in pixels, or -1 if the minimum 3300 * height was set in number of lines instead using {@link #setMinLines(int) or #setLines(int)}. 3301 * 3302 * @see #setMinHeight(int) 3303 * 3304 * @attr ref android.R.styleable#TextView_minHeight 3305 */ 3306 public int getMinHeight() { 3307 return mMinMode == PIXELS ? mMinimum : -1; 3308 } 3309 3310 /** 3311 * Makes the TextView at most this many lines tall. 3312 * 3313 * Setting this value overrides any other (maximum) height setting. 3314 * 3315 * @attr ref android.R.styleable#TextView_maxLines 3316 */ 3317 @android.view.RemotableViewMethod 3318 public void setMaxLines(int maxlines) { 3319 mMaximum = maxlines; 3320 mMaxMode = LINES; 3321 3322 requestLayout(); 3323 invalidate(); 3324 } 3325 3326 /** 3327 * @return the maximum number of lines displayed in this TextView, or -1 if the maximum 3328 * height was set in pixels instead using {@link #setMaxHeight(int) or #setHeight(int)}. 3329 * 3330 * @see #setMaxLines(int) 3331 * 3332 * @attr ref android.R.styleable#TextView_maxLines 3333 */ 3334 public int getMaxLines() { 3335 return mMaxMode == LINES ? mMaximum : -1; 3336 } 3337 3338 /** 3339 * Makes the TextView at most this many pixels tall. This option is mutually exclusive with the 3340 * {@link #setMaxLines(int)} method. 3341 * 3342 * Setting this value overrides any other (maximum) number of lines setting. 3343 * 3344 * @attr ref android.R.styleable#TextView_maxHeight 3345 */ 3346 @android.view.RemotableViewMethod 3347 public void setMaxHeight(int maxHeight) { 3348 mMaximum = maxHeight; 3349 mMaxMode = PIXELS; 3350 3351 requestLayout(); 3352 invalidate(); 3353 } 3354 3355 /** 3356 * @return the maximum height of this TextView expressed in pixels, or -1 if the maximum 3357 * height was set in number of lines instead using {@link #setMaxLines(int) or #setLines(int)}. 3358 * 3359 * @see #setMaxHeight(int) 3360 * 3361 * @attr ref android.R.styleable#TextView_maxHeight 3362 */ 3363 public int getMaxHeight() { 3364 return mMaxMode == PIXELS ? mMaximum : -1; 3365 } 3366 3367 /** 3368 * Makes the TextView exactly this many lines tall. 3369 * 3370 * Note that setting this value overrides any other (minimum / maximum) number of lines or 3371 * height setting. A single line TextView will set this value to 1. 3372 * 3373 * @attr ref android.R.styleable#TextView_lines 3374 */ 3375 @android.view.RemotableViewMethod 3376 public void setLines(int lines) { 3377 mMaximum = mMinimum = lines; 3378 mMaxMode = mMinMode = LINES; 3379 3380 requestLayout(); 3381 invalidate(); 3382 } 3383 3384 /** 3385 * Makes the TextView exactly this many pixels tall. 3386 * You could do the same thing by specifying this number in the 3387 * LayoutParams. 3388 * 3389 * Note that setting this value overrides any other (minimum / maximum) number of lines or 3390 * height setting. 3391 * 3392 * @attr ref android.R.styleable#TextView_height 3393 */ 3394 @android.view.RemotableViewMethod 3395 public void setHeight(int pixels) { 3396 mMaximum = mMinimum = pixels; 3397 mMaxMode = mMinMode = PIXELS; 3398 3399 requestLayout(); 3400 invalidate(); 3401 } 3402 3403 /** 3404 * Makes the TextView at least this many ems wide 3405 * 3406 * @attr ref android.R.styleable#TextView_minEms 3407 */ 3408 @android.view.RemotableViewMethod 3409 public void setMinEms(int minems) { 3410 mMinWidth = minems; 3411 mMinWidthMode = EMS; 3412 3413 requestLayout(); 3414 invalidate(); 3415 } 3416 3417 /** 3418 * @return the minimum width of the TextView, expressed in ems or -1 if the minimum width 3419 * was set in pixels instead (using {@link #setMinWidth(int)} or {@link #setWidth(int)}). 3420 * 3421 * @see #setMinEms(int) 3422 * @see #setEms(int) 3423 * 3424 * @attr ref android.R.styleable#TextView_minEms 3425 */ 3426 public int getMinEms() { 3427 return mMinWidthMode == EMS ? mMinWidth : -1; 3428 } 3429 3430 /** 3431 * Makes the TextView at least this many pixels wide 3432 * 3433 * @attr ref android.R.styleable#TextView_minWidth 3434 */ 3435 @android.view.RemotableViewMethod 3436 public void setMinWidth(int minpixels) { 3437 mMinWidth = minpixels; 3438 mMinWidthMode = PIXELS; 3439 3440 requestLayout(); 3441 invalidate(); 3442 } 3443 3444 /** 3445 * @return the minimum width of the TextView, in pixels or -1 if the minimum width 3446 * was set in ems instead (using {@link #setMinEms(int)} or {@link #setEms(int)}). 3447 * 3448 * @see #setMinWidth(int) 3449 * @see #setWidth(int) 3450 * 3451 * @attr ref android.R.styleable#TextView_minWidth 3452 */ 3453 public int getMinWidth() { 3454 return mMinWidthMode == PIXELS ? mMinWidth : -1; 3455 } 3456 3457 /** 3458 * Makes the TextView at most this many ems wide 3459 * 3460 * @attr ref android.R.styleable#TextView_maxEms 3461 */ 3462 @android.view.RemotableViewMethod 3463 public void setMaxEms(int maxems) { 3464 mMaxWidth = maxems; 3465 mMaxWidthMode = EMS; 3466 3467 requestLayout(); 3468 invalidate(); 3469 } 3470 3471 /** 3472 * @return the maximum width of the TextView, expressed in ems or -1 if the maximum width 3473 * was set in pixels instead (using {@link #setMaxWidth(int)} or {@link #setWidth(int)}). 3474 * 3475 * @see #setMaxEms(int) 3476 * @see #setEms(int) 3477 * 3478 * @attr ref android.R.styleable#TextView_maxEms 3479 */ 3480 public int getMaxEms() { 3481 return mMaxWidthMode == EMS ? mMaxWidth : -1; 3482 } 3483 3484 /** 3485 * Makes the TextView at most this many pixels wide 3486 * 3487 * @attr ref android.R.styleable#TextView_maxWidth 3488 */ 3489 @android.view.RemotableViewMethod 3490 public void setMaxWidth(int maxpixels) { 3491 mMaxWidth = maxpixels; 3492 mMaxWidthMode = PIXELS; 3493 3494 requestLayout(); 3495 invalidate(); 3496 } 3497 3498 /** 3499 * @return the maximum width of the TextView, in pixels or -1 if the maximum width 3500 * was set in ems instead (using {@link #setMaxEms(int)} or {@link #setEms(int)}). 3501 * 3502 * @see #setMaxWidth(int) 3503 * @see #setWidth(int) 3504 * 3505 * @attr ref android.R.styleable#TextView_maxWidth 3506 */ 3507 public int getMaxWidth() { 3508 return mMaxWidthMode == PIXELS ? mMaxWidth : -1; 3509 } 3510 3511 /** 3512 * Makes the TextView exactly this many ems wide 3513 * 3514 * @see #setMaxEms(int) 3515 * @see #setMinEms(int) 3516 * @see #getMinEms() 3517 * @see #getMaxEms() 3518 * 3519 * @attr ref android.R.styleable#TextView_ems 3520 */ 3521 @android.view.RemotableViewMethod 3522 public void setEms(int ems) { 3523 mMaxWidth = mMinWidth = ems; 3524 mMaxWidthMode = mMinWidthMode = EMS; 3525 3526 requestLayout(); 3527 invalidate(); 3528 } 3529 3530 /** 3531 * Makes the TextView exactly this many pixels wide. 3532 * You could do the same thing by specifying this number in the 3533 * LayoutParams. 3534 * 3535 * @see #setMaxWidth(int) 3536 * @see #setMinWidth(int) 3537 * @see #getMinWidth() 3538 * @see #getMaxWidth() 3539 * 3540 * @attr ref android.R.styleable#TextView_width 3541 */ 3542 @android.view.RemotableViewMethod 3543 public void setWidth(int pixels) { 3544 mMaxWidth = mMinWidth = pixels; 3545 mMaxWidthMode = mMinWidthMode = PIXELS; 3546 3547 requestLayout(); 3548 invalidate(); 3549 } 3550 3551 /** 3552 * Sets line spacing for this TextView. Each line will have its height 3553 * multiplied by <code>mult</code> and have <code>add</code> added to it. 3554 * 3555 * @attr ref android.R.styleable#TextView_lineSpacingExtra 3556 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 3557 */ 3558 public void setLineSpacing(float add, float mult) { 3559 if (mSpacingAdd != add || mSpacingMult != mult) { 3560 mSpacingAdd = add; 3561 mSpacingMult = mult; 3562 3563 if (mLayout != null) { 3564 nullLayouts(); 3565 requestLayout(); 3566 invalidate(); 3567 } 3568 } 3569 } 3570 3571 /** 3572 * Gets the line spacing multiplier 3573 * 3574 * @return the value by which each line's height is multiplied to get its actual height. 3575 * 3576 * @see #setLineSpacing(float, float) 3577 * @see #getLineSpacingExtra() 3578 * 3579 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 3580 */ 3581 public float getLineSpacingMultiplier() { 3582 return mSpacingMult; 3583 } 3584 3585 /** 3586 * Gets the line spacing extra space 3587 * 3588 * @return the extra space that is added to the height of each lines of this TextView. 3589 * 3590 * @see #setLineSpacing(float, float) 3591 * @see #getLineSpacingMultiplier() 3592 * 3593 * @attr ref android.R.styleable#TextView_lineSpacingExtra 3594 */ 3595 public float getLineSpacingExtra() { 3596 return mSpacingAdd; 3597 } 3598 3599 /** 3600 * Convenience method: Append the specified text to the TextView's 3601 * display buffer, upgrading it to BufferType.EDITABLE if it was 3602 * not already editable. 3603 */ 3604 public final void append(CharSequence text) { 3605 append(text, 0, text.length()); 3606 } 3607 3608 /** 3609 * Convenience method: Append the specified text slice to the TextView's 3610 * display buffer, upgrading it to BufferType.EDITABLE if it was 3611 * not already editable. 3612 */ 3613 public void append(CharSequence text, int start, int end) { 3614 if (!(mText instanceof Editable)) { 3615 setText(mText, BufferType.EDITABLE); 3616 } 3617 3618 ((Editable) mText).append(text, start, end); 3619 } 3620 3621 private void updateTextColors() { 3622 boolean inval = false; 3623 int color = mTextColor.getColorForState(getDrawableState(), 0); 3624 if (color != mCurTextColor) { 3625 mCurTextColor = color; 3626 inval = true; 3627 } 3628 if (mLinkTextColor != null) { 3629 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 3630 if (color != mTextPaint.linkColor) { 3631 mTextPaint.linkColor = color; 3632 inval = true; 3633 } 3634 } 3635 if (mHintTextColor != null) { 3636 color = mHintTextColor.getColorForState(getDrawableState(), 0); 3637 if (color != mCurHintTextColor) { 3638 mCurHintTextColor = color; 3639 if (mText.length() == 0) { 3640 inval = true; 3641 } 3642 } 3643 } 3644 if (inval) { 3645 // Text needs to be redrawn with the new color 3646 if (mEditor != null) mEditor.invalidateTextDisplayList(); 3647 invalidate(); 3648 } 3649 } 3650 3651 @Override 3652 protected void drawableStateChanged() { 3653 super.drawableStateChanged(); 3654 if (mTextColor != null && mTextColor.isStateful() 3655 || (mHintTextColor != null && mHintTextColor.isStateful()) 3656 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 3657 updateTextColors(); 3658 } 3659 3660 final Drawables dr = mDrawables; 3661 if (dr != null) { 3662 int[] state = getDrawableState(); 3663 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 3664 dr.mDrawableTop.setState(state); 3665 } 3666 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 3667 dr.mDrawableBottom.setState(state); 3668 } 3669 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 3670 dr.mDrawableLeft.setState(state); 3671 } 3672 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 3673 dr.mDrawableRight.setState(state); 3674 } 3675 if (dr.mDrawableStart != null && dr.mDrawableStart.isStateful()) { 3676 dr.mDrawableStart.setState(state); 3677 } 3678 if (dr.mDrawableEnd != null && dr.mDrawableEnd.isStateful()) { 3679 dr.mDrawableEnd.setState(state); 3680 } 3681 } 3682 } 3683 3684 @Override 3685 public void drawableHotspotChanged(float x, float y) { 3686 super.drawableHotspotChanged(x, y); 3687 3688 final Drawables dr = mDrawables; 3689 if (dr != null) { 3690 if (dr.mDrawableTop != null) { 3691 dr.mDrawableTop.setHotspot(x, y); 3692 } 3693 if (dr.mDrawableBottom != null) { 3694 dr.mDrawableBottom.setHotspot(x, y); 3695 } 3696 if (dr.mDrawableLeft != null) { 3697 dr.mDrawableLeft.setHotspot(x, y); 3698 } 3699 if (dr.mDrawableRight != null) { 3700 dr.mDrawableRight.setHotspot(x, y); 3701 } 3702 if (dr.mDrawableStart != null) { 3703 dr.mDrawableStart.setHotspot(x, y); 3704 } 3705 if (dr.mDrawableEnd != null) { 3706 dr.mDrawableEnd.setHotspot(x, y); 3707 } 3708 } 3709 } 3710 3711 @Override 3712 public Parcelable onSaveInstanceState() { 3713 Parcelable superState = super.onSaveInstanceState(); 3714 3715 // Save state if we are forced to 3716 boolean save = mFreezesText; 3717 int start = 0; 3718 int end = 0; 3719 3720 if (mText != null) { 3721 start = getSelectionStart(); 3722 end = getSelectionEnd(); 3723 if (start >= 0 || end >= 0) { 3724 // Or save state if there is a selection 3725 save = true; 3726 } 3727 } 3728 3729 if (save) { 3730 SavedState ss = new SavedState(superState); 3731 // XXX Should also save the current scroll position! 3732 ss.selStart = start; 3733 ss.selEnd = end; 3734 3735 if (mText instanceof Spanned) { 3736 Spannable sp = new SpannableStringBuilder(mText); 3737 3738 if (mEditor != null) { 3739 removeMisspelledSpans(sp); 3740 sp.removeSpan(mEditor.mSuggestionRangeSpan); 3741 } 3742 3743 ss.text = sp; 3744 } else { 3745 ss.text = mText.toString(); 3746 } 3747 3748 if (isFocused() && start >= 0 && end >= 0) { 3749 ss.frozenWithFocus = true; 3750 } 3751 3752 ss.error = getError(); 3753 3754 return ss; 3755 } 3756 3757 return superState; 3758 } 3759 3760 void removeMisspelledSpans(Spannable spannable) { 3761 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, spannable.length(), 3762 SuggestionSpan.class); 3763 for (int i = 0; i < suggestionSpans.length; i++) { 3764 int flags = suggestionSpans[i].getFlags(); 3765 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 3766 && (flags & SuggestionSpan.FLAG_MISSPELLED) != 0) { 3767 spannable.removeSpan(suggestionSpans[i]); 3768 } 3769 } 3770 } 3771 3772 @Override 3773 public void onRestoreInstanceState(Parcelable state) { 3774 if (!(state instanceof SavedState)) { 3775 super.onRestoreInstanceState(state); 3776 return; 3777 } 3778 3779 SavedState ss = (SavedState)state; 3780 super.onRestoreInstanceState(ss.getSuperState()); 3781 3782 // XXX restore buffer type too, as well as lots of other stuff 3783 if (ss.text != null) { 3784 setText(ss.text); 3785 } 3786 3787 if (ss.selStart >= 0 && ss.selEnd >= 0) { 3788 if (mText instanceof Spannable) { 3789 int len = mText.length(); 3790 3791 if (ss.selStart > len || ss.selEnd > len) { 3792 String restored = ""; 3793 3794 if (ss.text != null) { 3795 restored = "(restored) "; 3796 } 3797 3798 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 3799 "/" + ss.selEnd + " out of range for " + restored + 3800 "text " + mText); 3801 } else { 3802 Selection.setSelection((Spannable) mText, ss.selStart, ss.selEnd); 3803 3804 if (ss.frozenWithFocus) { 3805 createEditorIfNeeded(); 3806 mEditor.mFrozenWithFocus = true; 3807 } 3808 } 3809 } 3810 } 3811 3812 if (ss.error != null) { 3813 final CharSequence error = ss.error; 3814 // Display the error later, after the first layout pass 3815 post(new Runnable() { 3816 public void run() { 3817 if (mEditor == null || !mEditor.mErrorWasChanged) { 3818 setError(error); 3819 } 3820 } 3821 }); 3822 } 3823 } 3824 3825 /** 3826 * Control whether this text view saves its entire text contents when 3827 * freezing to an icicle, in addition to dynamic state such as cursor 3828 * position. By default this is false, not saving the text. Set to true 3829 * if the text in the text view is not being saved somewhere else in 3830 * persistent storage (such as in a content provider) so that if the 3831 * view is later thawed the user will not lose their data. 3832 * 3833 * @param freezesText Controls whether a frozen icicle should include the 3834 * entire text data: true to include it, false to not. 3835 * 3836 * @attr ref android.R.styleable#TextView_freezesText 3837 */ 3838 @android.view.RemotableViewMethod 3839 public void setFreezesText(boolean freezesText) { 3840 mFreezesText = freezesText; 3841 } 3842 3843 /** 3844 * Return whether this text view is including its entire text contents 3845 * in frozen icicles. 3846 * 3847 * @return Returns true if text is included, false if it isn't. 3848 * 3849 * @see #setFreezesText 3850 */ 3851 public boolean getFreezesText() { 3852 return mFreezesText; 3853 } 3854 3855 /////////////////////////////////////////////////////////////////////////// 3856 3857 /** 3858 * Sets the Factory used to create new Editables. 3859 */ 3860 public final void setEditableFactory(Editable.Factory factory) { 3861 mEditableFactory = factory; 3862 setText(mText); 3863 } 3864 3865 /** 3866 * Sets the Factory used to create new Spannables. 3867 */ 3868 public final void setSpannableFactory(Spannable.Factory factory) { 3869 mSpannableFactory = factory; 3870 setText(mText); 3871 } 3872 3873 /** 3874 * Sets the string value of the TextView. TextView <em>does not</em> accept 3875 * HTML-like formatting, which you can do with text strings in XML resource files. 3876 * To style your strings, attach android.text.style.* objects to a 3877 * {@link android.text.SpannableString SpannableString}, or see the 3878 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 3879 * Available Resource Types</a> documentation for an example of setting 3880 * formatted text in the XML resource file. 3881 * 3882 * @attr ref android.R.styleable#TextView_text 3883 */ 3884 @android.view.RemotableViewMethod 3885 public final void setText(CharSequence text) { 3886 setText(text, mBufferType); 3887 } 3888 3889 /** 3890 * Like {@link #setText(CharSequence)}, 3891 * except that the cursor position (if any) is retained in the new text. 3892 * 3893 * @param text The new text to place in the text view. 3894 * 3895 * @see #setText(CharSequence) 3896 */ 3897 @android.view.RemotableViewMethod 3898 public final void setTextKeepState(CharSequence text) { 3899 setTextKeepState(text, mBufferType); 3900 } 3901 3902 /** 3903 * Sets the text that this TextView is to display (see 3904 * {@link #setText(CharSequence)}) and also sets whether it is stored 3905 * in a styleable/spannable buffer and whether it is editable. 3906 * 3907 * @attr ref android.R.styleable#TextView_text 3908 * @attr ref android.R.styleable#TextView_bufferType 3909 */ 3910 public void setText(CharSequence text, BufferType type) { 3911 setText(text, type, true, 0); 3912 3913 if (mCharWrapper != null) { 3914 mCharWrapper.mChars = null; 3915 } 3916 } 3917 3918 private void setText(CharSequence text, BufferType type, 3919 boolean notifyBefore, int oldlen) { 3920 if (text == null) { 3921 text = ""; 3922 } 3923 3924 // If suggestions are not enabled, remove the suggestion spans from the text 3925 if (!isSuggestionsEnabled()) { 3926 text = removeSuggestionSpans(text); 3927 } 3928 3929 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 3930 3931 if (text instanceof Spanned && 3932 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 3933 if (ViewConfiguration.get(mContext).isFadingMarqueeEnabled()) { 3934 setHorizontalFadingEdgeEnabled(true); 3935 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 3936 } else { 3937 setHorizontalFadingEdgeEnabled(false); 3938 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 3939 } 3940 setEllipsize(TextUtils.TruncateAt.MARQUEE); 3941 } 3942 3943 int n = mFilters.length; 3944 for (int i = 0; i < n; i++) { 3945 CharSequence out = mFilters[i].filter(text, 0, text.length(), EMPTY_SPANNED, 0, 0); 3946 if (out != null) { 3947 text = out; 3948 } 3949 } 3950 3951 if (notifyBefore) { 3952 if (mText != null) { 3953 oldlen = mText.length(); 3954 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 3955 } else { 3956 sendBeforeTextChanged("", 0, 0, text.length()); 3957 } 3958 } 3959 3960 boolean needEditableForNotification = false; 3961 3962 if (mListeners != null && mListeners.size() != 0) { 3963 needEditableForNotification = true; 3964 } 3965 3966 if (type == BufferType.EDITABLE || getKeyListener() != null || 3967 needEditableForNotification) { 3968 createEditorIfNeeded(); 3969 Editable t = mEditableFactory.newEditable(text); 3970 text = t; 3971 setFilters(t, mFilters); 3972 InputMethodManager imm = InputMethodManager.peekInstance(); 3973 if (imm != null) imm.restartInput(this); 3974 } else if (type == BufferType.SPANNABLE || mMovement != null) { 3975 text = mSpannableFactory.newSpannable(text); 3976 } else if (!(text instanceof CharWrapper)) { 3977 text = TextUtils.stringOrSpannedString(text); 3978 } 3979 3980 if (mAutoLinkMask != 0) { 3981 Spannable s2; 3982 3983 if (type == BufferType.EDITABLE || text instanceof Spannable) { 3984 s2 = (Spannable) text; 3985 } else { 3986 s2 = mSpannableFactory.newSpannable(text); 3987 } 3988 3989 if (Linkify.addLinks(s2, mAutoLinkMask)) { 3990 text = s2; 3991 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 3992 3993 /* 3994 * We must go ahead and set the text before changing the 3995 * movement method, because setMovementMethod() may call 3996 * setText() again to try to upgrade the buffer type. 3997 */ 3998 mText = text; 3999 4000 // Do not change the movement method for text that support text selection as it 4001 // would prevent an arbitrary cursor displacement. 4002 if (mLinksClickable && !textCanBeSelected()) { 4003 setMovementMethod(LinkMovementMethod.getInstance()); 4004 } 4005 } 4006 } 4007 4008 mBufferType = type; 4009 mText = text; 4010 4011 if (mTransformation == null) { 4012 mTransformed = text; 4013 } else { 4014 mTransformed = mTransformation.getTransformation(text, this); 4015 } 4016 4017 final int textLength = text.length(); 4018 4019 if (text instanceof Spannable && !mAllowTransformationLengthChange) { 4020 Spannable sp = (Spannable) text; 4021 4022 // Remove any ChangeWatchers that might have come from other TextViews. 4023 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 4024 final int count = watchers.length; 4025 for (int i = 0; i < count; i++) { 4026 sp.removeSpan(watchers[i]); 4027 } 4028 4029 if (mChangeWatcher == null) mChangeWatcher = new ChangeWatcher(); 4030 4031 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 4032 (CHANGE_WATCHER_PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 4033 4034 if (mEditor != null) mEditor.addSpanWatchers(sp); 4035 4036 if (mTransformation != null) { 4037 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 4038 } 4039 4040 if (mMovement != null) { 4041 mMovement.initialize(this, (Spannable) text); 4042 4043 /* 4044 * Initializing the movement method will have set the 4045 * selection, so reset mSelectionMoved to keep that from 4046 * interfering with the normal on-focus selection-setting. 4047 */ 4048 if (mEditor != null) mEditor.mSelectionMoved = false; 4049 } 4050 } 4051 4052 if (mLayout != null) { 4053 checkForRelayout(); 4054 } 4055 4056 sendOnTextChanged(text, 0, oldlen, textLength); 4057 onTextChanged(text, 0, oldlen, textLength); 4058 4059 notifyViewAccessibilityStateChangedIfNeeded(AccessibilityEvent.CONTENT_CHANGE_TYPE_TEXT); 4060 4061 if (needEditableForNotification) { 4062 sendAfterTextChanged((Editable) text); 4063 } 4064 4065 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 4066 if (mEditor != null) mEditor.prepareCursorControllers(); 4067 } 4068 4069 /** 4070 * Sets the TextView to display the specified slice of the specified 4071 * char array. You must promise that you will not change the contents 4072 * of the array except for right before another call to setText(), 4073 * since the TextView has no way to know that the text 4074 * has changed and that it needs to invalidate and re-layout. 4075 */ 4076 public final void setText(char[] text, int start, int len) { 4077 int oldlen = 0; 4078 4079 if (start < 0 || len < 0 || start + len > text.length) { 4080 throw new IndexOutOfBoundsException(start + ", " + len); 4081 } 4082 4083 /* 4084 * We must do the before-notification here ourselves because if 4085 * the old text is a CharWrapper we destroy it before calling 4086 * into the normal path. 4087 */ 4088 if (mText != null) { 4089 oldlen = mText.length(); 4090 sendBeforeTextChanged(mText, 0, oldlen, len); 4091 } else { 4092 sendBeforeTextChanged("", 0, 0, len); 4093 } 4094 4095 if (mCharWrapper == null) { 4096 mCharWrapper = new CharWrapper(text, start, len); 4097 } else { 4098 mCharWrapper.set(text, start, len); 4099 } 4100 4101 setText(mCharWrapper, mBufferType, false, oldlen); 4102 } 4103 4104 /** 4105 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 4106 * except that the cursor position (if any) is retained in the new text. 4107 * 4108 * @see #setText(CharSequence, android.widget.TextView.BufferType) 4109 */ 4110 public final void setTextKeepState(CharSequence text, BufferType type) { 4111 int start = getSelectionStart(); 4112 int end = getSelectionEnd(); 4113 int len = text.length(); 4114 4115 setText(text, type); 4116 4117 if (start >= 0 || end >= 0) { 4118 if (mText instanceof Spannable) { 4119 Selection.setSelection((Spannable) mText, 4120 Math.max(0, Math.min(start, len)), 4121 Math.max(0, Math.min(end, len))); 4122 } 4123 } 4124 } 4125 4126 @android.view.RemotableViewMethod 4127 public final void setText(int resid) { 4128 setText(getContext().getResources().getText(resid)); 4129 } 4130 4131 public final void setText(int resid, BufferType type) { 4132 setText(getContext().getResources().getText(resid), type); 4133 } 4134 4135 /** 4136 * Sets the text to be displayed when the text of the TextView is empty. 4137 * Null means to use the normal empty text. The hint does not currently 4138 * participate in determining the size of the view. 4139 * 4140 * @attr ref android.R.styleable#TextView_hint 4141 */ 4142 @android.view.RemotableViewMethod 4143 public final void setHint(CharSequence hint) { 4144 mHint = TextUtils.stringOrSpannedString(hint); 4145 4146 if (mLayout != null) { 4147 checkForRelayout(); 4148 } 4149 4150 if (mText.length() == 0) { 4151 invalidate(); 4152 } 4153 4154 // Invalidate display list if hint is currently used 4155 if (mEditor != null && mText.length() == 0 && mHint != null) { 4156 mEditor.invalidateTextDisplayList(); 4157 } 4158 } 4159 4160 /** 4161 * Sets the text to be displayed when the text of the TextView is empty, 4162 * from a resource. 4163 * 4164 * @attr ref android.R.styleable#TextView_hint 4165 */ 4166 @android.view.RemotableViewMethod 4167 public final void setHint(int resid) { 4168 setHint(getContext().getResources().getText(resid)); 4169 } 4170 4171 /** 4172 * Returns the hint that is displayed when the text of the TextView 4173 * is empty. 4174 * 4175 * @attr ref android.R.styleable#TextView_hint 4176 */ 4177 @ViewDebug.CapturedViewProperty 4178 public CharSequence getHint() { 4179 return mHint; 4180 } 4181 4182 boolean isSingleLine() { 4183 return mSingleLine; 4184 } 4185 4186 private static boolean isMultilineInputType(int type) { 4187 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 4188 (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 4189 } 4190 4191 /** 4192 * Removes the suggestion spans. 4193 */ 4194 CharSequence removeSuggestionSpans(CharSequence text) { 4195 if (text instanceof Spanned) { 4196 Spannable spannable; 4197 if (text instanceof Spannable) { 4198 spannable = (Spannable) text; 4199 } else { 4200 spannable = new SpannableString(text); 4201 text = spannable; 4202 } 4203 4204 SuggestionSpan[] spans = spannable.getSpans(0, text.length(), SuggestionSpan.class); 4205 for (int i = 0; i < spans.length; i++) { 4206 spannable.removeSpan(spans[i]); 4207 } 4208 } 4209 return text; 4210 } 4211 4212 /** 4213 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 4214 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 4215 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 4216 * then a soft keyboard will not be displayed for this text view. 4217 * 4218 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 4219 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 4220 * type. 4221 * 4222 * @see #getInputType() 4223 * @see #setRawInputType(int) 4224 * @see android.text.InputType 4225 * @attr ref android.R.styleable#TextView_inputType 4226 */ 4227 public void setInputType(int type) { 4228 final boolean wasPassword = isPasswordInputType(getInputType()); 4229 final boolean wasVisiblePassword = isVisiblePasswordInputType(getInputType()); 4230 setInputType(type, false); 4231 final boolean isPassword = isPasswordInputType(type); 4232 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 4233 boolean forceUpdate = false; 4234 if (isPassword) { 4235 setTransformationMethod(PasswordTransformationMethod.getInstance()); 4236 setTypefaceFromAttrs(null /* fontFamily */, MONOSPACE, 0); 4237 } else if (isVisiblePassword) { 4238 if (mTransformation == PasswordTransformationMethod.getInstance()) { 4239 forceUpdate = true; 4240 } 4241 setTypefaceFromAttrs(null /* fontFamily */, MONOSPACE, 0); 4242 } else if (wasPassword || wasVisiblePassword) { 4243 // not in password mode, clean up typeface and transformation 4244 setTypefaceFromAttrs(null /* fontFamily */, -1, -1); 4245 if (mTransformation == PasswordTransformationMethod.getInstance()) { 4246 forceUpdate = true; 4247 } 4248 } 4249 4250 boolean singleLine = !isMultilineInputType(type); 4251 4252 // We need to update the single line mode if it has changed or we 4253 // were previously in password mode. 4254 if (mSingleLine != singleLine || forceUpdate) { 4255 // Change single line mode, but only change the transformation if 4256 // we are not in password mode. 4257 applySingleLine(singleLine, !isPassword, true); 4258 } 4259 4260 if (!isSuggestionsEnabled()) { 4261 mText = removeSuggestionSpans(mText); 4262 } 4263 4264 InputMethodManager imm = InputMethodManager.peekInstance(); 4265 if (imm != null) imm.restartInput(this); 4266 } 4267 4268 /** 4269 * It would be better to rely on the input type for everything. A password inputType should have 4270 * a password transformation. We should hence use isPasswordInputType instead of this method. 4271 * 4272 * We should: 4273 * - Call setInputType in setKeyListener instead of changing the input type directly (which 4274 * would install the correct transformation). 4275 * - Refuse the installation of a non-password transformation in setTransformation if the input 4276 * type is password. 4277 * 4278 * However, this is like this for legacy reasons and we cannot break existing apps. This method 4279 * is useful since it matches what the user can see (obfuscated text or not). 4280 * 4281 * @return true if the current transformation method is of the password type. 4282 */ 4283 private boolean hasPasswordTransformationMethod() { 4284 return mTransformation instanceof PasswordTransformationMethod; 4285 } 4286 4287 private static boolean isPasswordInputType(int inputType) { 4288 final int variation = 4289 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 4290 return variation 4291 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 4292 || variation 4293 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 4294 || variation 4295 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 4296 } 4297 4298 private static boolean isVisiblePasswordInputType(int inputType) { 4299 final int variation = 4300 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 4301 return variation 4302 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 4303 } 4304 4305 /** 4306 * Directly change the content type integer of the text view, without 4307 * modifying any other state. 4308 * @see #setInputType(int) 4309 * @see android.text.InputType 4310 * @attr ref android.R.styleable#TextView_inputType 4311 */ 4312 public void setRawInputType(int type) { 4313 if (type == InputType.TYPE_NULL && mEditor == null) return; //TYPE_NULL is the default value 4314 createEditorIfNeeded(); 4315 mEditor.mInputType = type; 4316 } 4317 4318 private void setInputType(int type, boolean direct) { 4319 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 4320 KeyListener input; 4321 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 4322 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 4323 TextKeyListener.Capitalize cap; 4324 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 4325 cap = TextKeyListener.Capitalize.CHARACTERS; 4326 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 4327 cap = TextKeyListener.Capitalize.WORDS; 4328 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 4329 cap = TextKeyListener.Capitalize.SENTENCES; 4330 } else { 4331 cap = TextKeyListener.Capitalize.NONE; 4332 } 4333 input = TextKeyListener.getInstance(autotext, cap); 4334 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 4335 input = DigitsKeyListener.getInstance( 4336 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 4337 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 4338 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 4339 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 4340 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 4341 input = DateKeyListener.getInstance(); 4342 break; 4343 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 4344 input = TimeKeyListener.getInstance(); 4345 break; 4346 default: 4347 input = DateTimeKeyListener.getInstance(); 4348 break; 4349 } 4350 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 4351 input = DialerKeyListener.getInstance(); 4352 } else { 4353 input = TextKeyListener.getInstance(); 4354 } 4355 setRawInputType(type); 4356 if (direct) { 4357 createEditorIfNeeded(); 4358 mEditor.mKeyListener = input; 4359 } else { 4360 setKeyListenerOnly(input); 4361 } 4362 } 4363 4364 /** 4365 * Get the type of the editable content. 4366 * 4367 * @see #setInputType(int) 4368 * @see android.text.InputType 4369 */ 4370 public int getInputType() { 4371 return mEditor == null ? EditorInfo.TYPE_NULL : mEditor.mInputType; 4372 } 4373 4374 /** 4375 * Change the editor type integer associated with the text view, which 4376 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 4377 * has focus. 4378 * @see #getImeOptions 4379 * @see android.view.inputmethod.EditorInfo 4380 * @attr ref android.R.styleable#TextView_imeOptions 4381 */ 4382 public void setImeOptions(int imeOptions) { 4383 createEditorIfNeeded(); 4384 mEditor.createInputContentTypeIfNeeded(); 4385 mEditor.mInputContentType.imeOptions = imeOptions; 4386 } 4387 4388 /** 4389 * Get the type of the IME editor. 4390 * 4391 * @see #setImeOptions(int) 4392 * @see android.view.inputmethod.EditorInfo 4393 */ 4394 public int getImeOptions() { 4395 return mEditor != null && mEditor.mInputContentType != null 4396 ? mEditor.mInputContentType.imeOptions : EditorInfo.IME_NULL; 4397 } 4398 4399 /** 4400 * Change the custom IME action associated with the text view, which 4401 * will be reported to an IME with {@link EditorInfo#actionLabel} 4402 * and {@link EditorInfo#actionId} when it has focus. 4403 * @see #getImeActionLabel 4404 * @see #getImeActionId 4405 * @see android.view.inputmethod.EditorInfo 4406 * @attr ref android.R.styleable#TextView_imeActionLabel 4407 * @attr ref android.R.styleable#TextView_imeActionId 4408 */ 4409 public void setImeActionLabel(CharSequence label, int actionId) { 4410 createEditorIfNeeded(); 4411 mEditor.createInputContentTypeIfNeeded(); 4412 mEditor.mInputContentType.imeActionLabel = label; 4413 mEditor.mInputContentType.imeActionId = actionId; 4414 } 4415 4416 /** 4417 * Get the IME action label previous set with {@link #setImeActionLabel}. 4418 * 4419 * @see #setImeActionLabel 4420 * @see android.view.inputmethod.EditorInfo 4421 */ 4422 public CharSequence getImeActionLabel() { 4423 return mEditor != null && mEditor.mInputContentType != null 4424 ? mEditor.mInputContentType.imeActionLabel : null; 4425 } 4426 4427 /** 4428 * Get the IME action ID previous set with {@link #setImeActionLabel}. 4429 * 4430 * @see #setImeActionLabel 4431 * @see android.view.inputmethod.EditorInfo 4432 */ 4433 public int getImeActionId() { 4434 return mEditor != null && mEditor.mInputContentType != null 4435 ? mEditor.mInputContentType.imeActionId : 0; 4436 } 4437 4438 /** 4439 * Set a special listener to be called when an action is performed 4440 * on the text view. This will be called when the enter key is pressed, 4441 * or when an action supplied to the IME is selected by the user. Setting 4442 * this means that the normal hard key event will not insert a newline 4443 * into the text view, even if it is multi-line; holding down the ALT 4444 * modifier will, however, allow the user to insert a newline character. 4445 */ 4446 public void setOnEditorActionListener(OnEditorActionListener l) { 4447 createEditorIfNeeded(); 4448 mEditor.createInputContentTypeIfNeeded(); 4449 mEditor.mInputContentType.onEditorActionListener = l; 4450 } 4451 4452 /** 4453 * Called when an attached input method calls 4454 * {@link InputConnection#performEditorAction(int) 4455 * InputConnection.performEditorAction()} 4456 * for this text view. The default implementation will call your action 4457 * listener supplied to {@link #setOnEditorActionListener}, or perform 4458 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 4459 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 4460 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 4461 * EditorInfo.IME_ACTION_DONE}. 4462 * 4463 * <p>For backwards compatibility, if no IME options have been set and the 4464 * text view would not normally advance focus on enter, then 4465 * the NEXT and DONE actions received here will be turned into an enter 4466 * key down/up pair to go through the normal key handling. 4467 * 4468 * @param actionCode The code of the action being performed. 4469 * 4470 * @see #setOnEditorActionListener 4471 */ 4472 public void onEditorAction(int actionCode) { 4473 final Editor.InputContentType ict = mEditor == null ? null : mEditor.mInputContentType; 4474 if (ict != null) { 4475 if (ict.onEditorActionListener != null) { 4476 if (ict.onEditorActionListener.onEditorAction(this, 4477 actionCode, null)) { 4478 return; 4479 } 4480 } 4481 4482 // This is the handling for some default action. 4483 // Note that for backwards compatibility we don't do this 4484 // default handling if explicit ime options have not been given, 4485 // instead turning this into the normal enter key codes that an 4486 // app may be expecting. 4487 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 4488 View v = focusSearch(FOCUS_FORWARD); 4489 if (v != null) { 4490 if (!v.requestFocus(FOCUS_FORWARD)) { 4491 throw new IllegalStateException("focus search returned a view " + 4492 "that wasn't able to take focus!"); 4493 } 4494 } 4495 return; 4496 4497 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 4498 View v = focusSearch(FOCUS_BACKWARD); 4499 if (v != null) { 4500 if (!v.requestFocus(FOCUS_BACKWARD)) { 4501 throw new IllegalStateException("focus search returned a view " + 4502 "that wasn't able to take focus!"); 4503 } 4504 } 4505 return; 4506 4507 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 4508 InputMethodManager imm = InputMethodManager.peekInstance(); 4509 if (imm != null && imm.isActive(this)) { 4510 imm.hideSoftInputFromWindow(getWindowToken(), 0); 4511 } 4512 return; 4513 } 4514 } 4515 4516 ViewRootImpl viewRootImpl = getViewRootImpl(); 4517 if (viewRootImpl != null) { 4518 long eventTime = SystemClock.uptimeMillis(); 4519 viewRootImpl.dispatchKeyFromIme( 4520 new KeyEvent(eventTime, eventTime, 4521 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 4522 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 4523 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 4524 | KeyEvent.FLAG_EDITOR_ACTION)); 4525 viewRootImpl.dispatchKeyFromIme( 4526 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 4527 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 4528 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 4529 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 4530 | KeyEvent.FLAG_EDITOR_ACTION)); 4531 } 4532 } 4533 4534 /** 4535 * Set the private content type of the text, which is the 4536 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 4537 * field that will be filled in when creating an input connection. 4538 * 4539 * @see #getPrivateImeOptions() 4540 * @see EditorInfo#privateImeOptions 4541 * @attr ref android.R.styleable#TextView_privateImeOptions 4542 */ 4543 public void setPrivateImeOptions(String type) { 4544 createEditorIfNeeded(); 4545 mEditor.createInputContentTypeIfNeeded(); 4546 mEditor.mInputContentType.privateImeOptions = type; 4547 } 4548 4549 /** 4550 * Get the private type of the content. 4551 * 4552 * @see #setPrivateImeOptions(String) 4553 * @see EditorInfo#privateImeOptions 4554 */ 4555 public String getPrivateImeOptions() { 4556 return mEditor != null && mEditor.mInputContentType != null 4557 ? mEditor.mInputContentType.privateImeOptions : null; 4558 } 4559 4560 /** 4561 * Set the extra input data of the text, which is the 4562 * {@link EditorInfo#extras TextBoxAttribute.extras} 4563 * Bundle that will be filled in when creating an input connection. The 4564 * given integer is the resource ID of an XML resource holding an 4565 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 4566 * 4567 * @see #getInputExtras(boolean) 4568 * @see EditorInfo#extras 4569 * @attr ref android.R.styleable#TextView_editorExtras 4570 */ 4571 public void setInputExtras(int xmlResId) throws XmlPullParserException, IOException { 4572 createEditorIfNeeded(); 4573 XmlResourceParser parser = getResources().getXml(xmlResId); 4574 mEditor.createInputContentTypeIfNeeded(); 4575 mEditor.mInputContentType.extras = new Bundle(); 4576 getResources().parseBundleExtras(parser, mEditor.mInputContentType.extras); 4577 } 4578 4579 /** 4580 * Retrieve the input extras currently associated with the text view, which 4581 * can be viewed as well as modified. 4582 * 4583 * @param create If true, the extras will be created if they don't already 4584 * exist. Otherwise, null will be returned if none have been created. 4585 * @see #setInputExtras(int) 4586 * @see EditorInfo#extras 4587 * @attr ref android.R.styleable#TextView_editorExtras 4588 */ 4589 public Bundle getInputExtras(boolean create) { 4590 if (mEditor == null && !create) return null; 4591 createEditorIfNeeded(); 4592 if (mEditor.mInputContentType == null) { 4593 if (!create) return null; 4594 mEditor.createInputContentTypeIfNeeded(); 4595 } 4596 if (mEditor.mInputContentType.extras == null) { 4597 if (!create) return null; 4598 mEditor.mInputContentType.extras = new Bundle(); 4599 } 4600 return mEditor.mInputContentType.extras; 4601 } 4602 4603 /** 4604 * Returns the error message that was set to be displayed with 4605 * {@link #setError}, or <code>null</code> if no error was set 4606 * or if it the error was cleared by the widget after user input. 4607 */ 4608 public CharSequence getError() { 4609 return mEditor == null ? null : mEditor.mError; 4610 } 4611 4612 /** 4613 * Sets the right-hand compound drawable of the TextView to the "error" 4614 * icon and sets an error message that will be displayed in a popup when 4615 * the TextView has focus. The icon and error message will be reset to 4616 * null when any key events cause changes to the TextView's text. If the 4617 * <code>error</code> is <code>null</code>, the error message and icon 4618 * will be cleared. 4619 */ 4620 @android.view.RemotableViewMethod 4621 public void setError(CharSequence error) { 4622 if (error == null) { 4623 setError(null, null); 4624 } else { 4625 Drawable dr = getContext().getDrawable( 4626 com.android.internal.R.drawable.indicator_input_error); 4627 4628 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 4629 setError(error, dr); 4630 } 4631 } 4632 4633 /** 4634 * Sets the right-hand compound drawable of the TextView to the specified 4635 * icon and sets an error message that will be displayed in a popup when 4636 * the TextView has focus. The icon and error message will be reset to 4637 * null when any key events cause changes to the TextView's text. The 4638 * drawable must already have had {@link Drawable#setBounds} set on it. 4639 * If the <code>error</code> is <code>null</code>, the error message will 4640 * be cleared (and you should provide a <code>null</code> icon as well). 4641 */ 4642 public void setError(CharSequence error, Drawable icon) { 4643 createEditorIfNeeded(); 4644 mEditor.setError(error, icon); 4645 notifyViewAccessibilityStateChangedIfNeeded( 4646 AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED); 4647 } 4648 4649 @Override 4650 protected boolean setFrame(int l, int t, int r, int b) { 4651 boolean result = super.setFrame(l, t, r, b); 4652 4653 if (mEditor != null) mEditor.setFrame(); 4654 4655 restartMarqueeIfNeeded(); 4656 4657 return result; 4658 } 4659 4660 private void restartMarqueeIfNeeded() { 4661 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4662 mRestartMarquee = false; 4663 startMarquee(); 4664 } 4665 } 4666 4667 /** 4668 * Sets the list of input filters that will be used if the buffer is 4669 * Editable. Has no effect otherwise. 4670 * 4671 * @attr ref android.R.styleable#TextView_maxLength 4672 */ 4673 public void setFilters(InputFilter[] filters) { 4674 if (filters == null) { 4675 throw new IllegalArgumentException(); 4676 } 4677 4678 mFilters = filters; 4679 4680 if (mText instanceof Editable) { 4681 setFilters((Editable) mText, filters); 4682 } 4683 } 4684 4685 /** 4686 * Sets the list of input filters on the specified Editable, 4687 * and includes mInput in the list if it is an InputFilter. 4688 */ 4689 private void setFilters(Editable e, InputFilter[] filters) { 4690 if (mEditor != null) { 4691 final boolean undoFilter = mEditor.mUndoInputFilter != null; 4692 final boolean keyFilter = mEditor.mKeyListener instanceof InputFilter; 4693 int num = 0; 4694 if (undoFilter) num++; 4695 if (keyFilter) num++; 4696 if (num > 0) { 4697 InputFilter[] nf = new InputFilter[filters.length + num]; 4698 4699 System.arraycopy(filters, 0, nf, 0, filters.length); 4700 num = 0; 4701 if (undoFilter) { 4702 nf[filters.length] = mEditor.mUndoInputFilter; 4703 num++; 4704 } 4705 if (keyFilter) { 4706 nf[filters.length + num] = (InputFilter) mEditor.mKeyListener; 4707 } 4708 4709 e.setFilters(nf); 4710 return; 4711 } 4712 } 4713 e.setFilters(filters); 4714 } 4715 4716 /** 4717 * Returns the current list of input filters. 4718 * 4719 * @attr ref android.R.styleable#TextView_maxLength 4720 */ 4721 public InputFilter[] getFilters() { 4722 return mFilters; 4723 } 4724 4725 ///////////////////////////////////////////////////////////////////////// 4726 4727 private int getBoxHeight(Layout l) { 4728 Insets opticalInsets = isLayoutModeOptical(mParent) ? getOpticalInsets() : Insets.NONE; 4729 int padding = (l == mHintLayout) ? 4730 getCompoundPaddingTop() + getCompoundPaddingBottom() : 4731 getExtendedPaddingTop() + getExtendedPaddingBottom(); 4732 return getMeasuredHeight() - padding + opticalInsets.top + opticalInsets.bottom; 4733 } 4734 4735 int getVerticalOffset(boolean forceNormal) { 4736 int voffset = 0; 4737 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4738 4739 Layout l = mLayout; 4740 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4741 l = mHintLayout; 4742 } 4743 4744 if (gravity != Gravity.TOP) { 4745 int boxht = getBoxHeight(l); 4746 int textht = l.getHeight(); 4747 4748 if (textht < boxht) { 4749 if (gravity == Gravity.BOTTOM) 4750 voffset = boxht - textht; 4751 else // (gravity == Gravity.CENTER_VERTICAL) 4752 voffset = (boxht - textht) >> 1; 4753 } 4754 } 4755 return voffset; 4756 } 4757 4758 private int getBottomVerticalOffset(boolean forceNormal) { 4759 int voffset = 0; 4760 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4761 4762 Layout l = mLayout; 4763 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4764 l = mHintLayout; 4765 } 4766 4767 if (gravity != Gravity.BOTTOM) { 4768 int boxht = getBoxHeight(l); 4769 int textht = l.getHeight(); 4770 4771 if (textht < boxht) { 4772 if (gravity == Gravity.TOP) 4773 voffset = boxht - textht; 4774 else // (gravity == Gravity.CENTER_VERTICAL) 4775 voffset = (boxht - textht) >> 1; 4776 } 4777 } 4778 return voffset; 4779 } 4780 4781 void invalidateCursorPath() { 4782 if (mHighlightPathBogus) { 4783 invalidateCursor(); 4784 } else { 4785 final int horizontalPadding = getCompoundPaddingLeft(); 4786 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4787 4788 if (mEditor.mCursorCount == 0) { 4789 synchronized (TEMP_RECTF) { 4790 /* 4791 * The reason for this concern about the thickness of the 4792 * cursor and doing the floor/ceil on the coordinates is that 4793 * some EditTexts (notably textfields in the Browser) have 4794 * anti-aliased text where not all the characters are 4795 * necessarily at integer-multiple locations. This should 4796 * make sure the entire cursor gets invalidated instead of 4797 * sometimes missing half a pixel. 4798 */ 4799 float thick = (float) Math.ceil(mTextPaint.getStrokeWidth()); 4800 if (thick < 1.0f) { 4801 thick = 1.0f; 4802 } 4803 4804 thick /= 2.0f; 4805 4806 // mHighlightPath is guaranteed to be non null at that point. 4807 mHighlightPath.computeBounds(TEMP_RECTF, false); 4808 4809 invalidate((int) Math.floor(horizontalPadding + TEMP_RECTF.left - thick), 4810 (int) Math.floor(verticalPadding + TEMP_RECTF.top - thick), 4811 (int) Math.ceil(horizontalPadding + TEMP_RECTF.right + thick), 4812 (int) Math.ceil(verticalPadding + TEMP_RECTF.bottom + thick)); 4813 } 4814 } else { 4815 for (int i = 0; i < mEditor.mCursorCount; i++) { 4816 Rect bounds = mEditor.mCursorDrawable[i].getBounds(); 4817 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 4818 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 4819 } 4820 } 4821 } 4822 } 4823 4824 void invalidateCursor() { 4825 int where = getSelectionEnd(); 4826 4827 invalidateCursor(where, where, where); 4828 } 4829 4830 private void invalidateCursor(int a, int b, int c) { 4831 if (a >= 0 || b >= 0 || c >= 0) { 4832 int start = Math.min(Math.min(a, b), c); 4833 int end = Math.max(Math.max(a, b), c); 4834 invalidateRegion(start, end, true /* Also invalidates blinking cursor */); 4835 } 4836 } 4837 4838 /** 4839 * Invalidates the region of text enclosed between the start and end text offsets. 4840 */ 4841 void invalidateRegion(int start, int end, boolean invalidateCursor) { 4842 if (mLayout == null) { 4843 invalidate(); 4844 } else { 4845 int lineStart = mLayout.getLineForOffset(start); 4846 int top = mLayout.getLineTop(lineStart); 4847 4848 // This is ridiculous, but the descent from the line above 4849 // can hang down into the line we really want to redraw, 4850 // so we have to invalidate part of the line above to make 4851 // sure everything that needs to be redrawn really is. 4852 // (But not the whole line above, because that would cause 4853 // the same problem with the descenders on the line above it!) 4854 if (lineStart > 0) { 4855 top -= mLayout.getLineDescent(lineStart - 1); 4856 } 4857 4858 int lineEnd; 4859 4860 if (start == end) 4861 lineEnd = lineStart; 4862 else 4863 lineEnd = mLayout.getLineForOffset(end); 4864 4865 int bottom = mLayout.getLineBottom(lineEnd); 4866 4867 // mEditor can be null in case selection is set programmatically. 4868 if (invalidateCursor && mEditor != null) { 4869 for (int i = 0; i < mEditor.mCursorCount; i++) { 4870 Rect bounds = mEditor.mCursorDrawable[i].getBounds(); 4871 top = Math.min(top, bounds.top); 4872 bottom = Math.max(bottom, bounds.bottom); 4873 } 4874 } 4875 4876 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4877 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4878 4879 int left, right; 4880 if (lineStart == lineEnd && !invalidateCursor) { 4881 left = (int) mLayout.getPrimaryHorizontal(start); 4882 right = (int) (mLayout.getPrimaryHorizontal(end) + 1.0); 4883 left += compoundPaddingLeft; 4884 right += compoundPaddingLeft; 4885 } else { 4886 // Rectangle bounding box when the region spans several lines 4887 left = compoundPaddingLeft; 4888 right = getWidth() - getCompoundPaddingRight(); 4889 } 4890 4891 invalidate(mScrollX + left, verticalPadding + top, 4892 mScrollX + right, verticalPadding + bottom); 4893 } 4894 } 4895 4896 private void registerForPreDraw() { 4897 if (!mPreDrawRegistered) { 4898 getViewTreeObserver().addOnPreDrawListener(this); 4899 mPreDrawRegistered = true; 4900 } 4901 } 4902 4903 private void unregisterForPreDraw() { 4904 getViewTreeObserver().removeOnPreDrawListener(this); 4905 mPreDrawRegistered = false; 4906 mPreDrawListenerDetached = false; 4907 } 4908 4909 /** 4910 * {@inheritDoc} 4911 */ 4912 public boolean onPreDraw() { 4913 if (mLayout == null) { 4914 assumeLayout(); 4915 } 4916 4917 if (mMovement != null) { 4918 /* This code also provides auto-scrolling when a cursor is moved using a 4919 * CursorController (insertion point or selection limits). 4920 * For selection, ensure start or end is visible depending on controller's state. 4921 */ 4922 int curs = getSelectionEnd(); 4923 // Do not create the controller if it is not already created. 4924 if (mEditor != null && mEditor.mSelectionModifierCursorController != null && 4925 mEditor.mSelectionModifierCursorController.isSelectionStartDragged()) { 4926 curs = getSelectionStart(); 4927 } 4928 4929 /* 4930 * TODO: This should really only keep the end in view if 4931 * it already was before the text changed. I'm not sure 4932 * of a good way to tell from here if it was. 4933 */ 4934 if (curs < 0 && (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 4935 curs = mText.length(); 4936 } 4937 4938 if (curs >= 0) { 4939 bringPointIntoView(curs); 4940 } 4941 } else { 4942 bringTextIntoView(); 4943 } 4944 4945 // This has to be checked here since: 4946 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 4947 // a screen rotation) since layout is not yet initialized at that point. 4948 if (mEditor != null && mEditor.mCreatedWithASelection) { 4949 mEditor.startSelectionActionMode(); 4950 mEditor.mCreatedWithASelection = false; 4951 } 4952 4953 // Phone specific code (there is no ExtractEditText on tablets). 4954 // ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can 4955 // not be set. Do the test here instead. 4956 if (this instanceof ExtractEditText && hasSelection() && mEditor != null) { 4957 mEditor.startSelectionActionMode(); 4958 } 4959 4960 unregisterForPreDraw(); 4961 4962 return true; 4963 } 4964 4965 @Override 4966 protected void onAttachedToWindow() { 4967 super.onAttachedToWindow(); 4968 4969 mTemporaryDetach = false; 4970 4971 if (mEditor != null) mEditor.onAttachedToWindow(); 4972 4973 if (mPreDrawListenerDetached) { 4974 getViewTreeObserver().addOnPreDrawListener(this); 4975 mPreDrawListenerDetached = false; 4976 } 4977 } 4978 4979 /** @hide */ 4980 @Override 4981 protected void onDetachedFromWindowInternal() { 4982 if (mPreDrawRegistered) { 4983 getViewTreeObserver().removeOnPreDrawListener(this); 4984 mPreDrawListenerDetached = true; 4985 } 4986 4987 resetResolvedDrawables(); 4988 4989 if (mEditor != null) mEditor.onDetachedFromWindow(); 4990 4991 super.onDetachedFromWindowInternal(); 4992 } 4993 4994 @Override 4995 public void onScreenStateChanged(int screenState) { 4996 super.onScreenStateChanged(screenState); 4997 if (mEditor != null) mEditor.onScreenStateChanged(screenState); 4998 } 4999 5000 @Override 5001 protected boolean isPaddingOffsetRequired() { 5002 return mShadowRadius != 0 || mDrawables != null; 5003 } 5004 5005 @Override 5006 protected int getLeftPaddingOffset() { 5007 return getCompoundPaddingLeft() - mPaddingLeft + 5008 (int) Math.min(0, mShadowDx - mShadowRadius); 5009 } 5010 5011 @Override 5012 protected int getTopPaddingOffset() { 5013 return (int) Math.min(0, mShadowDy - mShadowRadius); 5014 } 5015 5016 @Override 5017 protected int getBottomPaddingOffset() { 5018 return (int) Math.max(0, mShadowDy + mShadowRadius); 5019 } 5020 5021 @Override 5022 protected int getRightPaddingOffset() { 5023 return -(getCompoundPaddingRight() - mPaddingRight) + 5024 (int) Math.max(0, mShadowDx + mShadowRadius); 5025 } 5026 5027 @Override 5028 protected boolean verifyDrawable(Drawable who) { 5029 final boolean verified = super.verifyDrawable(who); 5030 if (!verified && mDrawables != null) { 5031 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 5032 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom || 5033 who == mDrawables.mDrawableStart || who == mDrawables.mDrawableEnd; 5034 } 5035 return verified; 5036 } 5037 5038 @Override 5039 public void jumpDrawablesToCurrentState() { 5040 super.jumpDrawablesToCurrentState(); 5041 if (mDrawables != null) { 5042 if (mDrawables.mDrawableLeft != null) { 5043 mDrawables.mDrawableLeft.jumpToCurrentState(); 5044 } 5045 if (mDrawables.mDrawableTop != null) { 5046 mDrawables.mDrawableTop.jumpToCurrentState(); 5047 } 5048 if (mDrawables.mDrawableRight != null) { 5049 mDrawables.mDrawableRight.jumpToCurrentState(); 5050 } 5051 if (mDrawables.mDrawableBottom != null) { 5052 mDrawables.mDrawableBottom.jumpToCurrentState(); 5053 } 5054 if (mDrawables.mDrawableStart != null) { 5055 mDrawables.mDrawableStart.jumpToCurrentState(); 5056 } 5057 if (mDrawables.mDrawableEnd != null) { 5058 mDrawables.mDrawableEnd.jumpToCurrentState(); 5059 } 5060 } 5061 } 5062 5063 @Override 5064 public void invalidateDrawable(Drawable drawable) { 5065 boolean handled = false; 5066 5067 if (verifyDrawable(drawable)) { 5068 final Rect dirty = drawable.getBounds(); 5069 int scrollX = mScrollX; 5070 int scrollY = mScrollY; 5071 5072 // IMPORTANT: The coordinates below are based on the coordinates computed 5073 // for each compound drawable in onDraw(). Make sure to update each section 5074 // accordingly. 5075 final TextView.Drawables drawables = mDrawables; 5076 if (drawables != null) { 5077 if (drawable == drawables.mDrawableLeft) { 5078 final int compoundPaddingTop = getCompoundPaddingTop(); 5079 final int compoundPaddingBottom = getCompoundPaddingBottom(); 5080 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 5081 5082 scrollX += mPaddingLeft; 5083 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 5084 handled = true; 5085 } else if (drawable == drawables.mDrawableRight) { 5086 final int compoundPaddingTop = getCompoundPaddingTop(); 5087 final int compoundPaddingBottom = getCompoundPaddingBottom(); 5088 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 5089 5090 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 5091 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 5092 handled = true; 5093 } else if (drawable == drawables.mDrawableTop) { 5094 final int compoundPaddingLeft = getCompoundPaddingLeft(); 5095 final int compoundPaddingRight = getCompoundPaddingRight(); 5096 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 5097 5098 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 5099 scrollY += mPaddingTop; 5100 handled = true; 5101 } else if (drawable == drawables.mDrawableBottom) { 5102 final int compoundPaddingLeft = getCompoundPaddingLeft(); 5103 final int compoundPaddingRight = getCompoundPaddingRight(); 5104 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 5105 5106 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 5107 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 5108 handled = true; 5109 } 5110 } 5111 5112 if (handled) { 5113 invalidate(dirty.left + scrollX, dirty.top + scrollY, 5114 dirty.right + scrollX, dirty.bottom + scrollY); 5115 } 5116 } 5117 5118 if (!handled) { 5119 super.invalidateDrawable(drawable); 5120 } 5121 } 5122 5123 @Override 5124 public boolean hasOverlappingRendering() { 5125 // horizontal fading edge causes SaveLayerAlpha, which doesn't support alpha modulation 5126 return ((getBackground() != null && getBackground().getCurrent() != null) 5127 || mText instanceof Spannable || hasSelection() 5128 || isHorizontalFadingEdgeEnabled()); 5129 } 5130 5131 /** 5132 * 5133 * Returns the state of the {@code textIsSelectable} flag (See 5134 * {@link #setTextIsSelectable setTextIsSelectable()}). Although you have to set this flag 5135 * to allow users to select and copy text in a non-editable TextView, the content of an 5136 * {@link EditText} can always be selected, independently of the value of this flag. 5137 * <p> 5138 * 5139 * @return True if the text displayed in this TextView can be selected by the user. 5140 * 5141 * @attr ref android.R.styleable#TextView_textIsSelectable 5142 */ 5143 public boolean isTextSelectable() { 5144 return mEditor == null ? false : mEditor.mTextIsSelectable; 5145 } 5146 5147 /** 5148 * Sets whether the content of this view is selectable by the user. The default is 5149 * {@code false}, meaning that the content is not selectable. 5150 * <p> 5151 * When you use a TextView to display a useful piece of information to the user (such as a 5152 * contact's address), make it selectable, so that the user can select and copy its 5153 * content. You can also use set the XML attribute 5154 * {@link android.R.styleable#TextView_textIsSelectable} to "true". 5155 * <p> 5156 * When you call this method to set the value of {@code textIsSelectable}, it sets 5157 * the flags {@code focusable}, {@code focusableInTouchMode}, {@code clickable}, 5158 * and {@code longClickable} to the same value. These flags correspond to the attributes 5159 * {@link android.R.styleable#View_focusable android:focusable}, 5160 * {@link android.R.styleable#View_focusableInTouchMode android:focusableInTouchMode}, 5161 * {@link android.R.styleable#View_clickable android:clickable}, and 5162 * {@link android.R.styleable#View_longClickable android:longClickable}. To restore any of these 5163 * flags to a state you had set previously, call one or more of the following methods: 5164 * {@link #setFocusable(boolean) setFocusable()}, 5165 * {@link #setFocusableInTouchMode(boolean) setFocusableInTouchMode()}, 5166 * {@link #setClickable(boolean) setClickable()} or 5167 * {@link #setLongClickable(boolean) setLongClickable()}. 5168 * 5169 * @param selectable Whether the content of this TextView should be selectable. 5170 */ 5171 public void setTextIsSelectable(boolean selectable) { 5172 if (!selectable && mEditor == null) return; // false is default value with no edit data 5173 5174 createEditorIfNeeded(); 5175 if (mEditor.mTextIsSelectable == selectable) return; 5176 5177 mEditor.mTextIsSelectable = selectable; 5178 setFocusableInTouchMode(selectable); 5179 setFocusable(selectable); 5180 setClickable(selectable); 5181 setLongClickable(selectable); 5182 5183 // mInputType should already be EditorInfo.TYPE_NULL and mInput should be null 5184 5185 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 5186 setText(mText, selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 5187 5188 // Called by setText above, but safer in case of future code changes 5189 mEditor.prepareCursorControllers(); 5190 } 5191 5192 @Override 5193 protected int[] onCreateDrawableState(int extraSpace) { 5194 final int[] drawableState; 5195 5196 if (mSingleLine) { 5197 drawableState = super.onCreateDrawableState(extraSpace); 5198 } else { 5199 drawableState = super.onCreateDrawableState(extraSpace + 1); 5200 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 5201 } 5202 5203 if (isTextSelectable()) { 5204 // Disable pressed state, which was introduced when TextView was made clickable. 5205 // Prevents text color change. 5206 // setClickable(false) would have a similar effect, but it also disables focus changes 5207 // and long press actions, which are both needed by text selection. 5208 final int length = drawableState.length; 5209 for (int i = 0; i < length; i++) { 5210 if (drawableState[i] == R.attr.state_pressed) { 5211 final int[] nonPressedState = new int[length - 1]; 5212 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 5213 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 5214 return nonPressedState; 5215 } 5216 } 5217 } 5218 5219 return drawableState; 5220 } 5221 5222 private Path getUpdatedHighlightPath() { 5223 Path highlight = null; 5224 Paint highlightPaint = mHighlightPaint; 5225 5226 final int selStart = getSelectionStart(); 5227 final int selEnd = getSelectionEnd(); 5228 if (mMovement != null && (isFocused() || isPressed()) && selStart >= 0) { 5229 if (selStart == selEnd) { 5230 if (mEditor != null && mEditor.isCursorVisible() && 5231 (SystemClock.uptimeMillis() - mEditor.mShowCursor) % 5232 (2 * Editor.BLINK) < Editor.BLINK) { 5233 if (mHighlightPathBogus) { 5234 if (mHighlightPath == null) mHighlightPath = new Path(); 5235 mHighlightPath.reset(); 5236 mLayout.getCursorPath(selStart, mHighlightPath, mText); 5237 mEditor.updateCursorsPositions(); 5238 mHighlightPathBogus = false; 5239 } 5240 5241 // XXX should pass to skin instead of drawing directly 5242 highlightPaint.setColor(mCurTextColor); 5243 highlightPaint.setStyle(Paint.Style.STROKE); 5244 highlight = mHighlightPath; 5245 } 5246 } else { 5247 if (mHighlightPathBogus) { 5248 if (mHighlightPath == null) mHighlightPath = new Path(); 5249 mHighlightPath.reset(); 5250 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 5251 mHighlightPathBogus = false; 5252 } 5253 5254 // XXX should pass to skin instead of drawing directly 5255 highlightPaint.setColor(mHighlightColor); 5256 highlightPaint.setStyle(Paint.Style.FILL); 5257 5258 highlight = mHighlightPath; 5259 } 5260 } 5261 return highlight; 5262 } 5263 5264 /** 5265 * @hide 5266 */ 5267 public int getHorizontalOffsetForDrawables() { 5268 return 0; 5269 } 5270 5271 @Override 5272 protected void onDraw(Canvas canvas) { 5273 restartMarqueeIfNeeded(); 5274 5275 // Draw the background for this view 5276 super.onDraw(canvas); 5277 5278 final int compoundPaddingLeft = getCompoundPaddingLeft(); 5279 final int compoundPaddingTop = getCompoundPaddingTop(); 5280 final int compoundPaddingRight = getCompoundPaddingRight(); 5281 final int compoundPaddingBottom = getCompoundPaddingBottom(); 5282 final int scrollX = mScrollX; 5283 final int scrollY = mScrollY; 5284 final int right = mRight; 5285 final int left = mLeft; 5286 final int bottom = mBottom; 5287 final int top = mTop; 5288 final boolean isLayoutRtl = isLayoutRtl(); 5289 final int offset = getHorizontalOffsetForDrawables(); 5290 final int leftOffset = isLayoutRtl ? 0 : offset; 5291 final int rightOffset = isLayoutRtl ? offset : 0 ; 5292 5293 final Drawables dr = mDrawables; 5294 if (dr != null) { 5295 /* 5296 * Compound, not extended, because the icon is not clipped 5297 * if the text height is smaller. 5298 */ 5299 5300 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 5301 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 5302 5303 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 5304 // Make sure to update invalidateDrawable() when changing this code. 5305 if (dr.mDrawableLeft != null) { 5306 canvas.save(); 5307 canvas.translate(scrollX + mPaddingLeft + leftOffset, 5308 scrollY + compoundPaddingTop + 5309 (vspace - dr.mDrawableHeightLeft) / 2); 5310 dr.mDrawableLeft.draw(canvas); 5311 canvas.restore(); 5312 } 5313 5314 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 5315 // Make sure to update invalidateDrawable() when changing this code. 5316 if (dr.mDrawableRight != null) { 5317 canvas.save(); 5318 canvas.translate(scrollX + right - left - mPaddingRight 5319 - dr.mDrawableSizeRight - rightOffset, 5320 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 5321 dr.mDrawableRight.draw(canvas); 5322 canvas.restore(); 5323 } 5324 5325 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 5326 // Make sure to update invalidateDrawable() when changing this code. 5327 if (dr.mDrawableTop != null) { 5328 canvas.save(); 5329 canvas.translate(scrollX + compoundPaddingLeft + 5330 (hspace - dr.mDrawableWidthTop) / 2, scrollY + mPaddingTop); 5331 dr.mDrawableTop.draw(canvas); 5332 canvas.restore(); 5333 } 5334 5335 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 5336 // Make sure to update invalidateDrawable() when changing this code. 5337 if (dr.mDrawableBottom != null) { 5338 canvas.save(); 5339 canvas.translate(scrollX + compoundPaddingLeft + 5340 (hspace - dr.mDrawableWidthBottom) / 2, 5341 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 5342 dr.mDrawableBottom.draw(canvas); 5343 canvas.restore(); 5344 } 5345 } 5346 5347 int color = mCurTextColor; 5348 5349 if (mLayout == null) { 5350 assumeLayout(); 5351 } 5352 5353 Layout layout = mLayout; 5354 5355 if (mHint != null && mText.length() == 0) { 5356 if (mHintTextColor != null) { 5357 color = mCurHintTextColor; 5358 } 5359 5360 layout = mHintLayout; 5361 } 5362 5363 mTextPaint.setColor(color); 5364 mTextPaint.drawableState = getDrawableState(); 5365 5366 canvas.save(); 5367 /* Would be faster if we didn't have to do this. Can we chop the 5368 (displayable) text so that we don't need to do this ever? 5369 */ 5370 5371 int extendedPaddingTop = getExtendedPaddingTop(); 5372 int extendedPaddingBottom = getExtendedPaddingBottom(); 5373 5374 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 5375 final int maxScrollY = mLayout.getHeight() - vspace; 5376 5377 // Add sufficient space for cursor and tone marks 5378 int cursorWidth = 2 + (int)mTextPaint.density; // adequate for Material cursors 5379 int fudgedPaddingRight = Math.max(0, compoundPaddingRight - (cursorWidth - 1)); 5380 5381 float clipLeft = compoundPaddingLeft + scrollX; 5382 float clipTop = (scrollY == 0) ? 0 : extendedPaddingTop + scrollY; 5383 float clipRight = right - left - fudgedPaddingRight + scrollX; 5384 float clipBottom = bottom - top + scrollY - 5385 ((scrollY == maxScrollY) ? 0 : extendedPaddingBottom); 5386 5387 if (mShadowRadius != 0) { 5388 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 5389 clipRight += Math.max(0, mShadowDx + mShadowRadius); 5390 5391 clipTop += Math.min(0, mShadowDy - mShadowRadius); 5392 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 5393 } 5394 5395 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 5396 5397 int voffsetText = 0; 5398 int voffsetCursor = 0; 5399 5400 // translate in by our padding 5401 /* shortcircuit calling getVerticaOffset() */ 5402 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5403 voffsetText = getVerticalOffset(false); 5404 voffsetCursor = getVerticalOffset(true); 5405 } 5406 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 5407 5408 final int layoutDirection = getLayoutDirection(); 5409 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 5410 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 5411 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 5412 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 5413 (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 5414 final int width = mRight - mLeft; 5415 final int padding = getCompoundPaddingLeft() + getCompoundPaddingRight(); 5416 final float dx = mLayout.getLineRight(0) - (width - padding); 5417 canvas.translate(layout.getParagraphDirection(0) * dx, 0.0f); 5418 } 5419 5420 if (mMarquee != null && mMarquee.isRunning()) { 5421 final float dx = -mMarquee.getScroll(); 5422 canvas.translate(layout.getParagraphDirection(0) * dx, 0.0f); 5423 } 5424 } 5425 5426 final int cursorOffsetVertical = voffsetCursor - voffsetText; 5427 5428 Path highlight = getUpdatedHighlightPath(); 5429 if (mEditor != null) { 5430 mEditor.onDraw(canvas, layout, highlight, mHighlightPaint, cursorOffsetVertical); 5431 } else { 5432 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 5433 } 5434 5435 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 5436 final float dx = mMarquee.getGhostOffset(); 5437 canvas.translate(layout.getParagraphDirection(0) * dx, 0.0f); 5438 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 5439 } 5440 5441 canvas.restore(); 5442 } 5443 5444 @Override 5445 public void getFocusedRect(Rect r) { 5446 if (mLayout == null) { 5447 super.getFocusedRect(r); 5448 return; 5449 } 5450 5451 int selEnd = getSelectionEnd(); 5452 if (selEnd < 0) { 5453 super.getFocusedRect(r); 5454 return; 5455 } 5456 5457 int selStart = getSelectionStart(); 5458 if (selStart < 0 || selStart >= selEnd) { 5459 int line = mLayout.getLineForOffset(selEnd); 5460 r.top = mLayout.getLineTop(line); 5461 r.bottom = mLayout.getLineBottom(line); 5462 r.left = (int) mLayout.getPrimaryHorizontal(selEnd) - 2; 5463 r.right = r.left + 4; 5464 } else { 5465 int lineStart = mLayout.getLineForOffset(selStart); 5466 int lineEnd = mLayout.getLineForOffset(selEnd); 5467 r.top = mLayout.getLineTop(lineStart); 5468 r.bottom = mLayout.getLineBottom(lineEnd); 5469 if (lineStart == lineEnd) { 5470 r.left = (int) mLayout.getPrimaryHorizontal(selStart); 5471 r.right = (int) mLayout.getPrimaryHorizontal(selEnd); 5472 } else { 5473 // Selection extends across multiple lines -- make the focused 5474 // rect cover the entire width. 5475 if (mHighlightPathBogus) { 5476 if (mHighlightPath == null) mHighlightPath = new Path(); 5477 mHighlightPath.reset(); 5478 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 5479 mHighlightPathBogus = false; 5480 } 5481 synchronized (TEMP_RECTF) { 5482 mHighlightPath.computeBounds(TEMP_RECTF, true); 5483 r.left = (int)TEMP_RECTF.left-1; 5484 r.right = (int)TEMP_RECTF.right+1; 5485 } 5486 } 5487 } 5488 5489 // Adjust for padding and gravity. 5490 int paddingLeft = getCompoundPaddingLeft(); 5491 int paddingTop = getExtendedPaddingTop(); 5492 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5493 paddingTop += getVerticalOffset(false); 5494 } 5495 r.offset(paddingLeft, paddingTop); 5496 int paddingBottom = getExtendedPaddingBottom(); 5497 r.bottom += paddingBottom; 5498 } 5499 5500 /** 5501 * Return the number of lines of text, or 0 if the internal Layout has not 5502 * been built. 5503 */ 5504 public int getLineCount() { 5505 return mLayout != null ? mLayout.getLineCount() : 0; 5506 } 5507 5508 /** 5509 * Return the baseline for the specified line (0...getLineCount() - 1) 5510 * If bounds is not null, return the top, left, right, bottom extents 5511 * of the specified line in it. If the internal Layout has not been built, 5512 * return 0 and set bounds to (0, 0, 0, 0) 5513 * @param line which line to examine (0..getLineCount() - 1) 5514 * @param bounds Optional. If not null, it returns the extent of the line 5515 * @return the Y-coordinate of the baseline 5516 */ 5517 public int getLineBounds(int line, Rect bounds) { 5518 if (mLayout == null) { 5519 if (bounds != null) { 5520 bounds.set(0, 0, 0, 0); 5521 } 5522 return 0; 5523 } 5524 else { 5525 int baseline = mLayout.getLineBounds(line, bounds); 5526 5527 int voffset = getExtendedPaddingTop(); 5528 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5529 voffset += getVerticalOffset(true); 5530 } 5531 if (bounds != null) { 5532 bounds.offset(getCompoundPaddingLeft(), voffset); 5533 } 5534 return baseline + voffset; 5535 } 5536 } 5537 5538 @Override 5539 public int getBaseline() { 5540 if (mLayout == null) { 5541 return super.getBaseline(); 5542 } 5543 5544 int voffset = 0; 5545 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5546 voffset = getVerticalOffset(true); 5547 } 5548 5549 if (isLayoutModeOptical(mParent)) { 5550 voffset -= getOpticalInsets().top; 5551 } 5552 5553 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 5554 } 5555 5556 /** 5557 * @hide 5558 */ 5559 @Override 5560 protected int getFadeTop(boolean offsetRequired) { 5561 if (mLayout == null) return 0; 5562 5563 int voffset = 0; 5564 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5565 voffset = getVerticalOffset(true); 5566 } 5567 5568 if (offsetRequired) voffset += getTopPaddingOffset(); 5569 5570 return getExtendedPaddingTop() + voffset; 5571 } 5572 5573 /** 5574 * @hide 5575 */ 5576 @Override 5577 protected int getFadeHeight(boolean offsetRequired) { 5578 return mLayout != null ? mLayout.getHeight() : 0; 5579 } 5580 5581 @Override 5582 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 5583 if (keyCode == KeyEvent.KEYCODE_BACK) { 5584 boolean isInSelectionMode = mEditor != null && mEditor.mSelectionActionMode != null; 5585 5586 if (isInSelectionMode) { 5587 if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) { 5588 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5589 if (state != null) { 5590 state.startTracking(event, this); 5591 } 5592 return true; 5593 } else if (event.getAction() == KeyEvent.ACTION_UP) { 5594 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5595 if (state != null) { 5596 state.handleUpEvent(event); 5597 } 5598 if (event.isTracking() && !event.isCanceled()) { 5599 stopSelectionActionMode(); 5600 return true; 5601 } 5602 } 5603 } 5604 } 5605 return super.onKeyPreIme(keyCode, event); 5606 } 5607 5608 @Override 5609 public boolean onKeyDown(int keyCode, KeyEvent event) { 5610 int which = doKeyDown(keyCode, event, null); 5611 if (which == 0) { 5612 return super.onKeyDown(keyCode, event); 5613 } 5614 5615 return true; 5616 } 5617 5618 @Override 5619 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 5620 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 5621 5622 int which = doKeyDown(keyCode, down, event); 5623 if (which == 0) { 5624 // Go through default dispatching. 5625 return super.onKeyMultiple(keyCode, repeatCount, event); 5626 } 5627 if (which == -1) { 5628 // Consumed the whole thing. 5629 return true; 5630 } 5631 5632 repeatCount--; 5633 5634 // We are going to dispatch the remaining events to either the input 5635 // or movement method. To do this, we will just send a repeated stream 5636 // of down and up events until we have done the complete repeatCount. 5637 // It would be nice if those interfaces had an onKeyMultiple() method, 5638 // but adding that is a more complicated change. 5639 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 5640 if (which == 1) { 5641 // mEditor and mEditor.mInput are not null from doKeyDown 5642 mEditor.mKeyListener.onKeyUp(this, (Editable)mText, keyCode, up); 5643 while (--repeatCount > 0) { 5644 mEditor.mKeyListener.onKeyDown(this, (Editable)mText, keyCode, down); 5645 mEditor.mKeyListener.onKeyUp(this, (Editable)mText, keyCode, up); 5646 } 5647 hideErrorIfUnchanged(); 5648 5649 } else if (which == 2) { 5650 // mMovement is not null from doKeyDown 5651 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5652 while (--repeatCount > 0) { 5653 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 5654 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5655 } 5656 } 5657 5658 return true; 5659 } 5660 5661 /** 5662 * Returns true if pressing ENTER in this field advances focus instead 5663 * of inserting the character. This is true mostly in single-line fields, 5664 * but also in mail addresses and subjects which will display on multiple 5665 * lines but where it doesn't make sense to insert newlines. 5666 */ 5667 private boolean shouldAdvanceFocusOnEnter() { 5668 if (getKeyListener() == null) { 5669 return false; 5670 } 5671 5672 if (mSingleLine) { 5673 return true; 5674 } 5675 5676 if (mEditor != null && 5677 (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5678 int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION; 5679 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 5680 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 5681 return true; 5682 } 5683 } 5684 5685 return false; 5686 } 5687 5688 /** 5689 * Returns true if pressing TAB in this field advances focus instead 5690 * of inserting the character. Insert tabs only in multi-line editors. 5691 */ 5692 private boolean shouldAdvanceFocusOnTab() { 5693 if (getKeyListener() != null && !mSingleLine && mEditor != null && 5694 (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5695 int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION; 5696 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 5697 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 5698 return false; 5699 } 5700 } 5701 return true; 5702 } 5703 5704 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 5705 if (!isEnabled()) { 5706 return 0; 5707 } 5708 5709 // If this is the initial keydown, we don't want to prevent a movement away from this view. 5710 // While this shouldn't be necessary because any time we're preventing default movement we 5711 // should be restricting the focus to remain within this view, thus we'll also receive 5712 // the key up event, occasionally key up events will get dropped and we don't want to 5713 // prevent the user from traversing out of this on the next key down. 5714 if (event.getRepeatCount() == 0 && !KeyEvent.isModifierKey(keyCode)) { 5715 mPreventDefaultMovement = false; 5716 } 5717 5718 switch (keyCode) { 5719 case KeyEvent.KEYCODE_ENTER: 5720 if (event.hasNoModifiers()) { 5721 // When mInputContentType is set, we know that we are 5722 // running in a "modern" cupcake environment, so don't need 5723 // to worry about the application trying to capture 5724 // enter key events. 5725 if (mEditor != null && mEditor.mInputContentType != null) { 5726 // If there is an action listener, given them a 5727 // chance to consume the event. 5728 if (mEditor.mInputContentType.onEditorActionListener != null && 5729 mEditor.mInputContentType.onEditorActionListener.onEditorAction( 5730 this, EditorInfo.IME_NULL, event)) { 5731 mEditor.mInputContentType.enterDown = true; 5732 // We are consuming the enter key for them. 5733 return -1; 5734 } 5735 } 5736 5737 // If our editor should move focus when enter is pressed, or 5738 // this is a generated event from an IME action button, then 5739 // don't let it be inserted into the text. 5740 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5741 || shouldAdvanceFocusOnEnter()) { 5742 if (hasOnClickListeners()) { 5743 return 0; 5744 } 5745 return -1; 5746 } 5747 } 5748 break; 5749 5750 case KeyEvent.KEYCODE_DPAD_CENTER: 5751 if (event.hasNoModifiers()) { 5752 if (shouldAdvanceFocusOnEnter()) { 5753 return 0; 5754 } 5755 } 5756 break; 5757 5758 case KeyEvent.KEYCODE_TAB: 5759 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 5760 if (shouldAdvanceFocusOnTab()) { 5761 return 0; 5762 } 5763 } 5764 break; 5765 5766 // Has to be done on key down (and not on key up) to correctly be intercepted. 5767 case KeyEvent.KEYCODE_BACK: 5768 if (mEditor != null && mEditor.mSelectionActionMode != null) { 5769 stopSelectionActionMode(); 5770 return -1; 5771 } 5772 break; 5773 } 5774 5775 if (mEditor != null && mEditor.mKeyListener != null) { 5776 boolean doDown = true; 5777 if (otherEvent != null) { 5778 try { 5779 beginBatchEdit(); 5780 final boolean handled = mEditor.mKeyListener.onKeyOther(this, (Editable) mText, 5781 otherEvent); 5782 hideErrorIfUnchanged(); 5783 doDown = false; 5784 if (handled) { 5785 return -1; 5786 } 5787 } catch (AbstractMethodError e) { 5788 // onKeyOther was added after 1.0, so if it isn't 5789 // implemented we need to try to dispatch as a regular down. 5790 } finally { 5791 endBatchEdit(); 5792 } 5793 } 5794 5795 if (doDown) { 5796 beginBatchEdit(); 5797 final boolean handled = mEditor.mKeyListener.onKeyDown(this, (Editable) mText, 5798 keyCode, event); 5799 endBatchEdit(); 5800 hideErrorIfUnchanged(); 5801 if (handled) return 1; 5802 } 5803 } 5804 5805 // bug 650865: sometimes we get a key event before a layout. 5806 // don't try to move around if we don't know the layout. 5807 5808 if (mMovement != null && mLayout != null) { 5809 boolean doDown = true; 5810 if (otherEvent != null) { 5811 try { 5812 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 5813 otherEvent); 5814 doDown = false; 5815 if (handled) { 5816 return -1; 5817 } 5818 } catch (AbstractMethodError e) { 5819 // onKeyOther was added after 1.0, so if it isn't 5820 // implemented we need to try to dispatch as a regular down. 5821 } 5822 } 5823 if (doDown) { 5824 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) { 5825 if (event.getRepeatCount() == 0 && !KeyEvent.isModifierKey(keyCode)) { 5826 mPreventDefaultMovement = true; 5827 } 5828 return 2; 5829 } 5830 } 5831 } 5832 5833 return mPreventDefaultMovement && !KeyEvent.isModifierKey(keyCode) ? -1 : 0; 5834 } 5835 5836 /** 5837 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 5838 * can be recorded. 5839 * @hide 5840 */ 5841 public void resetErrorChangedFlag() { 5842 /* 5843 * Keep track of what the error was before doing the input 5844 * so that if an input filter changed the error, we leave 5845 * that error showing. Otherwise, we take down whatever 5846 * error was showing when the user types something. 5847 */ 5848 if (mEditor != null) mEditor.mErrorWasChanged = false; 5849 } 5850 5851 /** 5852 * @hide 5853 */ 5854 public void hideErrorIfUnchanged() { 5855 if (mEditor != null && mEditor.mError != null && !mEditor.mErrorWasChanged) { 5856 setError(null, null); 5857 } 5858 } 5859 5860 @Override 5861 public boolean onKeyUp(int keyCode, KeyEvent event) { 5862 if (!isEnabled()) { 5863 return super.onKeyUp(keyCode, event); 5864 } 5865 5866 if (!KeyEvent.isModifierKey(keyCode)) { 5867 mPreventDefaultMovement = false; 5868 } 5869 5870 switch (keyCode) { 5871 case KeyEvent.KEYCODE_DPAD_CENTER: 5872 if (event.hasNoModifiers()) { 5873 /* 5874 * If there is a click listener, just call through to 5875 * super, which will invoke it. 5876 * 5877 * If there isn't a click listener, try to show the soft 5878 * input method. (It will also 5879 * call performClick(), but that won't do anything in 5880 * this case.) 5881 */ 5882 if (!hasOnClickListeners()) { 5883 if (mMovement != null && mText instanceof Editable 5884 && mLayout != null && onCheckIsTextEditor()) { 5885 InputMethodManager imm = InputMethodManager.peekInstance(); 5886 viewClicked(imm); 5887 if (imm != null && getShowSoftInputOnFocus()) { 5888 imm.showSoftInput(this, 0); 5889 } 5890 } 5891 } 5892 } 5893 return super.onKeyUp(keyCode, event); 5894 5895 case KeyEvent.KEYCODE_ENTER: 5896 if (event.hasNoModifiers()) { 5897 if (mEditor != null && mEditor.mInputContentType != null 5898 && mEditor.mInputContentType.onEditorActionListener != null 5899 && mEditor.mInputContentType.enterDown) { 5900 mEditor.mInputContentType.enterDown = false; 5901 if (mEditor.mInputContentType.onEditorActionListener.onEditorAction( 5902 this, EditorInfo.IME_NULL, event)) { 5903 return true; 5904 } 5905 } 5906 5907 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5908 || shouldAdvanceFocusOnEnter()) { 5909 /* 5910 * If there is a click listener, just call through to 5911 * super, which will invoke it. 5912 * 5913 * If there isn't a click listener, try to advance focus, 5914 * but still call through to super, which will reset the 5915 * pressed state and longpress state. (It will also 5916 * call performClick(), but that won't do anything in 5917 * this case.) 5918 */ 5919 if (!hasOnClickListeners()) { 5920 View v = focusSearch(FOCUS_DOWN); 5921 5922 if (v != null) { 5923 if (!v.requestFocus(FOCUS_DOWN)) { 5924 throw new IllegalStateException( 5925 "focus search returned a view " + 5926 "that wasn't able to take focus!"); 5927 } 5928 5929 /* 5930 * Return true because we handled the key; super 5931 * will return false because there was no click 5932 * listener. 5933 */ 5934 super.onKeyUp(keyCode, event); 5935 return true; 5936 } else if ((event.getFlags() 5937 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 5938 // No target for next focus, but make sure the IME 5939 // if this came from it. 5940 InputMethodManager imm = InputMethodManager.peekInstance(); 5941 if (imm != null && imm.isActive(this)) { 5942 imm.hideSoftInputFromWindow(getWindowToken(), 0); 5943 } 5944 } 5945 } 5946 } 5947 return super.onKeyUp(keyCode, event); 5948 } 5949 break; 5950 } 5951 5952 if (mEditor != null && mEditor.mKeyListener != null) 5953 if (mEditor.mKeyListener.onKeyUp(this, (Editable) mText, keyCode, event)) 5954 return true; 5955 5956 if (mMovement != null && mLayout != null) 5957 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 5958 return true; 5959 5960 return super.onKeyUp(keyCode, event); 5961 } 5962 5963 @Override 5964 public boolean onCheckIsTextEditor() { 5965 return mEditor != null && mEditor.mInputType != EditorInfo.TYPE_NULL; 5966 } 5967 5968 @Override 5969 public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5970 if (onCheckIsTextEditor() && isEnabled()) { 5971 mEditor.createInputMethodStateIfNeeded(); 5972 outAttrs.inputType = getInputType(); 5973 if (mEditor.mInputContentType != null) { 5974 outAttrs.imeOptions = mEditor.mInputContentType.imeOptions; 5975 outAttrs.privateImeOptions = mEditor.mInputContentType.privateImeOptions; 5976 outAttrs.actionLabel = mEditor.mInputContentType.imeActionLabel; 5977 outAttrs.actionId = mEditor.mInputContentType.imeActionId; 5978 outAttrs.extras = mEditor.mInputContentType.extras; 5979 } else { 5980 outAttrs.imeOptions = EditorInfo.IME_NULL; 5981 } 5982 if (focusSearch(FOCUS_DOWN) != null) { 5983 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 5984 } 5985 if (focusSearch(FOCUS_UP) != null) { 5986 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 5987 } 5988 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 5989 == EditorInfo.IME_ACTION_UNSPECIFIED) { 5990 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 5991 // An action has not been set, but the enter key will move to 5992 // the next focus, so set the action to that. 5993 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 5994 } else { 5995 // An action has not been set, and there is no focus to move 5996 // to, so let's just supply a "done" action. 5997 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 5998 } 5999 if (!shouldAdvanceFocusOnEnter()) { 6000 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 6001 } 6002 } 6003 if (isMultilineInputType(outAttrs.inputType)) { 6004 // Multi-line text editors should always show an enter key. 6005 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 6006 } 6007 outAttrs.hintText = mHint; 6008 if (mText instanceof Editable) { 6009 InputConnection ic = new EditableInputConnection(this); 6010 outAttrs.initialSelStart = getSelectionStart(); 6011 outAttrs.initialSelEnd = getSelectionEnd(); 6012 outAttrs.initialCapsMode = ic.getCursorCapsMode(getInputType()); 6013 return ic; 6014 } 6015 } 6016 return null; 6017 } 6018 6019 /** 6020 * If this TextView contains editable content, extract a portion of it 6021 * based on the information in <var>request</var> in to <var>outText</var>. 6022 * @return Returns true if the text was successfully extracted, else false. 6023 */ 6024 public boolean extractText(ExtractedTextRequest request, ExtractedText outText) { 6025 createEditorIfNeeded(); 6026 return mEditor.extractText(request, outText); 6027 } 6028 6029 /** 6030 * This is used to remove all style-impacting spans from text before new 6031 * extracted text is being replaced into it, so that we don't have any 6032 * lingering spans applied during the replace. 6033 */ 6034 static void removeParcelableSpans(Spannable spannable, int start, int end) { 6035 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 6036 int i = spans.length; 6037 while (i > 0) { 6038 i--; 6039 spannable.removeSpan(spans[i]); 6040 } 6041 } 6042 6043 /** 6044 * Apply to this text view the given extracted text, as previously 6045 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 6046 */ 6047 public void setExtractedText(ExtractedText text) { 6048 Editable content = getEditableText(); 6049 if (text.text != null) { 6050 if (content == null) { 6051 setText(text.text, TextView.BufferType.EDITABLE); 6052 } else if (text.partialStartOffset < 0) { 6053 removeParcelableSpans(content, 0, content.length()); 6054 content.replace(0, content.length(), text.text); 6055 } else { 6056 final int N = content.length(); 6057 int start = text.partialStartOffset; 6058 if (start > N) start = N; 6059 int end = text.partialEndOffset; 6060 if (end > N) end = N; 6061 removeParcelableSpans(content, start, end); 6062 content.replace(start, end, text.text); 6063 } 6064 } 6065 6066 // Now set the selection position... make sure it is in range, to 6067 // avoid crashes. If this is a partial update, it is possible that 6068 // the underlying text may have changed, causing us problems here. 6069 // Also we just don't want to trust clients to do the right thing. 6070 Spannable sp = (Spannable)getText(); 6071 final int N = sp.length(); 6072 int start = text.selectionStart; 6073 if (start < 0) start = 0; 6074 else if (start > N) start = N; 6075 int end = text.selectionEnd; 6076 if (end < 0) end = 0; 6077 else if (end > N) end = N; 6078 Selection.setSelection(sp, start, end); 6079 6080 // Finally, update the selection mode. 6081 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 6082 MetaKeyKeyListener.startSelecting(this, sp); 6083 } else { 6084 MetaKeyKeyListener.stopSelecting(this, sp); 6085 } 6086 } 6087 6088 /** 6089 * @hide 6090 */ 6091 public void setExtracting(ExtractedTextRequest req) { 6092 if (mEditor.mInputMethodState != null) { 6093 mEditor.mInputMethodState.mExtractedTextRequest = req; 6094 } 6095 // This would stop a possible selection mode, but no such mode is started in case 6096 // extracted mode will start. Some text is selected though, and will trigger an action mode 6097 // in the extracted view. 6098 mEditor.hideControllers(); 6099 } 6100 6101 /** 6102 * Called by the framework in response to a text completion from 6103 * the current input method, provided by it calling 6104 * {@link InputConnection#commitCompletion 6105 * InputConnection.commitCompletion()}. The default implementation does 6106 * nothing; text views that are supporting auto-completion should override 6107 * this to do their desired behavior. 6108 * 6109 * @param text The auto complete text the user has selected. 6110 */ 6111 public void onCommitCompletion(CompletionInfo text) { 6112 // intentionally empty 6113 } 6114 6115 /** 6116 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 6117 * a dictionnary) from the current input method, provided by it calling 6118 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 6119 * implementation flashes the background of the corrected word to provide feedback to the user. 6120 * 6121 * @param info The auto correct info about the text that was corrected. 6122 */ 6123 public void onCommitCorrection(CorrectionInfo info) { 6124 if (mEditor != null) mEditor.onCommitCorrection(info); 6125 } 6126 6127 public void beginBatchEdit() { 6128 if (mEditor != null) mEditor.beginBatchEdit(); 6129 } 6130 6131 public void endBatchEdit() { 6132 if (mEditor != null) mEditor.endBatchEdit(); 6133 } 6134 6135 /** 6136 * Called by the framework in response to a request to begin a batch 6137 * of edit operations through a call to link {@link #beginBatchEdit()}. 6138 */ 6139 public void onBeginBatchEdit() { 6140 // intentionally empty 6141 } 6142 6143 /** 6144 * Called by the framework in response to a request to end a batch 6145 * of edit operations through a call to link {@link #endBatchEdit}. 6146 */ 6147 public void onEndBatchEdit() { 6148 // intentionally empty 6149 } 6150 6151 /** 6152 * Called by the framework in response to a private command from the 6153 * current method, provided by it calling 6154 * {@link InputConnection#performPrivateCommand 6155 * InputConnection.performPrivateCommand()}. 6156 * 6157 * @param action The action name of the command. 6158 * @param data Any additional data for the command. This may be null. 6159 * @return Return true if you handled the command, else false. 6160 */ 6161 public boolean onPrivateIMECommand(String action, Bundle data) { 6162 return false; 6163 } 6164 6165 private void nullLayouts() { 6166 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 6167 mSavedLayout = (BoringLayout) mLayout; 6168 } 6169 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 6170 mSavedHintLayout = (BoringLayout) mHintLayout; 6171 } 6172 6173 mSavedMarqueeModeLayout = mLayout = mHintLayout = null; 6174 6175 mBoring = mHintBoring = null; 6176 6177 // Since it depends on the value of mLayout 6178 if (mEditor != null) mEditor.prepareCursorControllers(); 6179 } 6180 6181 /** 6182 * Make a new Layout based on the already-measured size of the view, 6183 * on the assumption that it was measured correctly at some point. 6184 */ 6185 private void assumeLayout() { 6186 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6187 6188 if (width < 1) { 6189 width = 0; 6190 } 6191 6192 int physicalWidth = width; 6193 6194 if (mHorizontallyScrolling) { 6195 width = VERY_WIDE; 6196 } 6197 6198 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 6199 physicalWidth, false); 6200 } 6201 6202 private Layout.Alignment getLayoutAlignment() { 6203 Layout.Alignment alignment; 6204 switch (getTextAlignment()) { 6205 case TEXT_ALIGNMENT_GRAVITY: 6206 switch (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) { 6207 case Gravity.START: 6208 alignment = Layout.Alignment.ALIGN_NORMAL; 6209 break; 6210 case Gravity.END: 6211 alignment = Layout.Alignment.ALIGN_OPPOSITE; 6212 break; 6213 case Gravity.LEFT: 6214 alignment = Layout.Alignment.ALIGN_LEFT; 6215 break; 6216 case Gravity.RIGHT: 6217 alignment = Layout.Alignment.ALIGN_RIGHT; 6218 break; 6219 case Gravity.CENTER_HORIZONTAL: 6220 alignment = Layout.Alignment.ALIGN_CENTER; 6221 break; 6222 default: 6223 alignment = Layout.Alignment.ALIGN_NORMAL; 6224 break; 6225 } 6226 break; 6227 case TEXT_ALIGNMENT_TEXT_START: 6228 alignment = Layout.Alignment.ALIGN_NORMAL; 6229 break; 6230 case TEXT_ALIGNMENT_TEXT_END: 6231 alignment = Layout.Alignment.ALIGN_OPPOSITE; 6232 break; 6233 case TEXT_ALIGNMENT_CENTER: 6234 alignment = Layout.Alignment.ALIGN_CENTER; 6235 break; 6236 case TEXT_ALIGNMENT_VIEW_START: 6237 alignment = (getLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 6238 Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT; 6239 break; 6240 case TEXT_ALIGNMENT_VIEW_END: 6241 alignment = (getLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 6242 Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT; 6243 break; 6244 case TEXT_ALIGNMENT_INHERIT: 6245 // This should never happen as we have already resolved the text alignment 6246 // but better safe than sorry so we just fall through 6247 default: 6248 alignment = Layout.Alignment.ALIGN_NORMAL; 6249 break; 6250 } 6251 return alignment; 6252 } 6253 6254 /** 6255 * The width passed in is now the desired layout width, 6256 * not the full view width with padding. 6257 * {@hide} 6258 */ 6259 protected void makeNewLayout(int wantWidth, int hintWidth, 6260 BoringLayout.Metrics boring, 6261 BoringLayout.Metrics hintBoring, 6262 int ellipsisWidth, boolean bringIntoView) { 6263 stopMarquee(); 6264 6265 // Update "old" cached values 6266 mOldMaximum = mMaximum; 6267 mOldMaxMode = mMaxMode; 6268 6269 mHighlightPathBogus = true; 6270 6271 if (wantWidth < 0) { 6272 wantWidth = 0; 6273 } 6274 if (hintWidth < 0) { 6275 hintWidth = 0; 6276 } 6277 6278 Layout.Alignment alignment = getLayoutAlignment(); 6279 final boolean testDirChange = mSingleLine && mLayout != null && 6280 (alignment == Layout.Alignment.ALIGN_NORMAL || 6281 alignment == Layout.Alignment.ALIGN_OPPOSITE); 6282 int oldDir = 0; 6283 if (testDirChange) oldDir = mLayout.getParagraphDirection(0); 6284 boolean shouldEllipsize = mEllipsize != null && getKeyListener() == null; 6285 final boolean switchEllipsize = mEllipsize == TruncateAt.MARQUEE && 6286 mMarqueeFadeMode != MARQUEE_FADE_NORMAL; 6287 TruncateAt effectiveEllipsize = mEllipsize; 6288 if (mEllipsize == TruncateAt.MARQUEE && 6289 mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 6290 effectiveEllipsize = TruncateAt.END_SMALL; 6291 } 6292 6293 if (mTextDir == null) { 6294 mTextDir = getTextDirectionHeuristic(); 6295 } 6296 6297 mLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, shouldEllipsize, 6298 effectiveEllipsize, effectiveEllipsize == mEllipsize); 6299 if (switchEllipsize) { 6300 TruncateAt oppositeEllipsize = effectiveEllipsize == TruncateAt.MARQUEE ? 6301 TruncateAt.END : TruncateAt.MARQUEE; 6302 mSavedMarqueeModeLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, 6303 shouldEllipsize, oppositeEllipsize, effectiveEllipsize != mEllipsize); 6304 } 6305 6306 shouldEllipsize = mEllipsize != null; 6307 mHintLayout = null; 6308 6309 if (mHint != null) { 6310 if (shouldEllipsize) hintWidth = wantWidth; 6311 6312 if (hintBoring == UNKNOWN_BORING) { 6313 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, 6314 mHintBoring); 6315 if (hintBoring != null) { 6316 mHintBoring = hintBoring; 6317 } 6318 } 6319 6320 if (hintBoring != null) { 6321 if (hintBoring.width <= hintWidth && 6322 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 6323 if (mSavedHintLayout != null) { 6324 mHintLayout = mSavedHintLayout. 6325 replaceOrMake(mHint, mTextPaint, 6326 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6327 hintBoring, mIncludePad); 6328 } else { 6329 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6330 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6331 hintBoring, mIncludePad); 6332 } 6333 6334 mSavedHintLayout = (BoringLayout) mHintLayout; 6335 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 6336 if (mSavedHintLayout != null) { 6337 mHintLayout = mSavedHintLayout. 6338 replaceOrMake(mHint, mTextPaint, 6339 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6340 hintBoring, mIncludePad, mEllipsize, 6341 ellipsisWidth); 6342 } else { 6343 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6344 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6345 hintBoring, mIncludePad, mEllipsize, 6346 ellipsisWidth); 6347 } 6348 } else if (shouldEllipsize) { 6349 mHintLayout = new StaticLayout(mHint, 6350 0, mHint.length(), 6351 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6352 mSpacingAdd, mIncludePad, mEllipsize, 6353 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6354 } else { 6355 mHintLayout = new StaticLayout(mHint, mTextPaint, 6356 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6357 mIncludePad); 6358 } 6359 } else if (shouldEllipsize) { 6360 mHintLayout = new StaticLayout(mHint, 6361 0, mHint.length(), 6362 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6363 mSpacingAdd, mIncludePad, mEllipsize, 6364 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6365 } else { 6366 mHintLayout = new StaticLayout(mHint, mTextPaint, 6367 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6368 mIncludePad); 6369 } 6370 } 6371 6372 if (bringIntoView || (testDirChange && oldDir != mLayout.getParagraphDirection(0))) { 6373 registerForPreDraw(); 6374 } 6375 6376 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6377 if (!compressText(ellipsisWidth)) { 6378 final int height = mLayoutParams.height; 6379 // If the size of the view does not depend on the size of the text, try to 6380 // start the marquee immediately 6381 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 6382 startMarquee(); 6383 } else { 6384 // Defer the start of the marquee until we know our width (see setFrame()) 6385 mRestartMarquee = true; 6386 } 6387 } 6388 } 6389 6390 // CursorControllers need a non-null mLayout 6391 if (mEditor != null) mEditor.prepareCursorControllers(); 6392 } 6393 6394 private Layout makeSingleLayout(int wantWidth, BoringLayout.Metrics boring, int ellipsisWidth, 6395 Layout.Alignment alignment, boolean shouldEllipsize, TruncateAt effectiveEllipsize, 6396 boolean useSaved) { 6397 Layout result = null; 6398 if (mText instanceof Spannable) { 6399 result = new DynamicLayout(mText, mTransformed, mTextPaint, wantWidth, 6400 alignment, mTextDir, mSpacingMult, 6401 mSpacingAdd, mIncludePad, getKeyListener() == null ? effectiveEllipsize : null, 6402 ellipsisWidth); 6403 } else { 6404 if (boring == UNKNOWN_BORING) { 6405 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6406 if (boring != null) { 6407 mBoring = boring; 6408 } 6409 } 6410 6411 if (boring != null) { 6412 if (boring.width <= wantWidth && 6413 (effectiveEllipsize == null || boring.width <= ellipsisWidth)) { 6414 if (useSaved && mSavedLayout != null) { 6415 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 6416 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6417 boring, mIncludePad); 6418 } else { 6419 result = BoringLayout.make(mTransformed, mTextPaint, 6420 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6421 boring, mIncludePad); 6422 } 6423 6424 if (useSaved) { 6425 mSavedLayout = (BoringLayout) result; 6426 } 6427 } else if (shouldEllipsize && boring.width <= wantWidth) { 6428 if (useSaved && mSavedLayout != null) { 6429 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 6430 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6431 boring, mIncludePad, effectiveEllipsize, 6432 ellipsisWidth); 6433 } else { 6434 result = BoringLayout.make(mTransformed, mTextPaint, 6435 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6436 boring, mIncludePad, effectiveEllipsize, 6437 ellipsisWidth); 6438 } 6439 } else if (shouldEllipsize) { 6440 result = new StaticLayout(mTransformed, 6441 0, mTransformed.length(), 6442 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 6443 mSpacingAdd, mIncludePad, effectiveEllipsize, 6444 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6445 } else { 6446 result = new StaticLayout(mTransformed, mTextPaint, 6447 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6448 mIncludePad); 6449 } 6450 } else if (shouldEllipsize) { 6451 result = new StaticLayout(mTransformed, 6452 0, mTransformed.length(), 6453 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 6454 mSpacingAdd, mIncludePad, effectiveEllipsize, 6455 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6456 } else { 6457 result = new StaticLayout(mTransformed, mTextPaint, 6458 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6459 mIncludePad); 6460 } 6461 } 6462 return result; 6463 } 6464 6465 private boolean compressText(float width) { 6466 if (isHardwareAccelerated()) return false; 6467 6468 // Only compress the text if it hasn't been compressed by the previous pass 6469 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 6470 mTextPaint.getTextScaleX() == 1.0f) { 6471 final float textWidth = mLayout.getLineWidth(0); 6472 final float overflow = (textWidth + 1.0f - width) / width; 6473 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 6474 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 6475 post(new Runnable() { 6476 public void run() { 6477 requestLayout(); 6478 } 6479 }); 6480 return true; 6481 } 6482 } 6483 6484 return false; 6485 } 6486 6487 private static int desired(Layout layout) { 6488 int n = layout.getLineCount(); 6489 CharSequence text = layout.getText(); 6490 float max = 0; 6491 6492 // if any line was wrapped, we can't use it. 6493 // but it's ok for the last line not to have a newline 6494 6495 for (int i = 0; i < n - 1; i++) { 6496 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 6497 return -1; 6498 } 6499 6500 for (int i = 0; i < n; i++) { 6501 max = Math.max(max, layout.getLineWidth(i)); 6502 } 6503 6504 return (int) Math.ceil(max); 6505 } 6506 6507 /** 6508 * Set whether the TextView includes extra top and bottom padding to make 6509 * room for accents that go above the normal ascent and descent. 6510 * The default is true. 6511 * 6512 * @see #getIncludeFontPadding() 6513 * 6514 * @attr ref android.R.styleable#TextView_includeFontPadding 6515 */ 6516 public void setIncludeFontPadding(boolean includepad) { 6517 if (mIncludePad != includepad) { 6518 mIncludePad = includepad; 6519 6520 if (mLayout != null) { 6521 nullLayouts(); 6522 requestLayout(); 6523 invalidate(); 6524 } 6525 } 6526 } 6527 6528 /** 6529 * Gets whether the TextView includes extra top and bottom padding to make 6530 * room for accents that go above the normal ascent and descent. 6531 * 6532 * @see #setIncludeFontPadding(boolean) 6533 * 6534 * @attr ref android.R.styleable#TextView_includeFontPadding 6535 */ 6536 public boolean getIncludeFontPadding() { 6537 return mIncludePad; 6538 } 6539 6540 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 6541 6542 @Override 6543 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 6544 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 6545 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 6546 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 6547 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 6548 6549 int width; 6550 int height; 6551 6552 BoringLayout.Metrics boring = UNKNOWN_BORING; 6553 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 6554 6555 if (mTextDir == null) { 6556 mTextDir = getTextDirectionHeuristic(); 6557 } 6558 6559 int des = -1; 6560 boolean fromexisting = false; 6561 6562 if (widthMode == MeasureSpec.EXACTLY) { 6563 // Parent has told us how big to be. So be it. 6564 width = widthSize; 6565 } else { 6566 if (mLayout != null && mEllipsize == null) { 6567 des = desired(mLayout); 6568 } 6569 6570 if (des < 0) { 6571 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6572 if (boring != null) { 6573 mBoring = boring; 6574 } 6575 } else { 6576 fromexisting = true; 6577 } 6578 6579 if (boring == null || boring == UNKNOWN_BORING) { 6580 if (des < 0) { 6581 des = (int) Math.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 6582 } 6583 width = des; 6584 } else { 6585 width = boring.width; 6586 } 6587 6588 final Drawables dr = mDrawables; 6589 if (dr != null) { 6590 width = Math.max(width, dr.mDrawableWidthTop); 6591 width = Math.max(width, dr.mDrawableWidthBottom); 6592 } 6593 6594 if (mHint != null) { 6595 int hintDes = -1; 6596 int hintWidth; 6597 6598 if (mHintLayout != null && mEllipsize == null) { 6599 hintDes = desired(mHintLayout); 6600 } 6601 6602 if (hintDes < 0) { 6603 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, mHintBoring); 6604 if (hintBoring != null) { 6605 mHintBoring = hintBoring; 6606 } 6607 } 6608 6609 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 6610 if (hintDes < 0) { 6611 hintDes = (int) Math.ceil(Layout.getDesiredWidth(mHint, mTextPaint)); 6612 } 6613 hintWidth = hintDes; 6614 } else { 6615 hintWidth = hintBoring.width; 6616 } 6617 6618 if (hintWidth > width) { 6619 width = hintWidth; 6620 } 6621 } 6622 6623 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 6624 6625 if (mMaxWidthMode == EMS) { 6626 width = Math.min(width, mMaxWidth * getLineHeight()); 6627 } else { 6628 width = Math.min(width, mMaxWidth); 6629 } 6630 6631 if (mMinWidthMode == EMS) { 6632 width = Math.max(width, mMinWidth * getLineHeight()); 6633 } else { 6634 width = Math.max(width, mMinWidth); 6635 } 6636 6637 // Check against our minimum width 6638 width = Math.max(width, getSuggestedMinimumWidth()); 6639 6640 if (widthMode == MeasureSpec.AT_MOST) { 6641 width = Math.min(widthSize, width); 6642 } 6643 } 6644 6645 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6646 int unpaddedWidth = want; 6647 6648 if (mHorizontallyScrolling) want = VERY_WIDE; 6649 6650 int hintWant = want; 6651 int hintWidth = (mHintLayout == null) ? hintWant : mHintLayout.getWidth(); 6652 6653 if (mLayout == null) { 6654 makeNewLayout(want, hintWant, boring, hintBoring, 6655 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6656 } else { 6657 final boolean layoutChanged = (mLayout.getWidth() != want) || 6658 (hintWidth != hintWant) || 6659 (mLayout.getEllipsizedWidth() != 6660 width - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6661 6662 final boolean widthChanged = (mHint == null) && 6663 (mEllipsize == null) && 6664 (want > mLayout.getWidth()) && 6665 (mLayout instanceof BoringLayout || (fromexisting && des >= 0 && des <= want)); 6666 6667 final boolean maximumChanged = (mMaxMode != mOldMaxMode) || (mMaximum != mOldMaximum); 6668 6669 if (layoutChanged || maximumChanged) { 6670 if (!maximumChanged && widthChanged) { 6671 mLayout.increaseWidthTo(want); 6672 } else { 6673 makeNewLayout(want, hintWant, boring, hintBoring, 6674 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6675 } 6676 } else { 6677 // Nothing has changed 6678 } 6679 } 6680 6681 if (heightMode == MeasureSpec.EXACTLY) { 6682 // Parent has told us how big to be. So be it. 6683 height = heightSize; 6684 mDesiredHeightAtMeasure = -1; 6685 } else { 6686 int desired = getDesiredHeight(); 6687 6688 height = desired; 6689 mDesiredHeightAtMeasure = desired; 6690 6691 if (heightMode == MeasureSpec.AT_MOST) { 6692 height = Math.min(desired, heightSize); 6693 } 6694 } 6695 6696 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 6697 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 6698 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 6699 } 6700 6701 /* 6702 * We didn't let makeNewLayout() register to bring the cursor into view, 6703 * so do it here if there is any possibility that it is needed. 6704 */ 6705 if (mMovement != null || 6706 mLayout.getWidth() > unpaddedWidth || 6707 mLayout.getHeight() > unpaddedHeight) { 6708 registerForPreDraw(); 6709 } else { 6710 scrollTo(0, 0); 6711 } 6712 6713 setMeasuredDimension(width, height); 6714 } 6715 6716 private int getDesiredHeight() { 6717 return Math.max( 6718 getDesiredHeight(mLayout, true), 6719 getDesiredHeight(mHintLayout, mEllipsize != null)); 6720 } 6721 6722 private int getDesiredHeight(Layout layout, boolean cap) { 6723 if (layout == null) { 6724 return 0; 6725 } 6726 6727 int linecount = layout.getLineCount(); 6728 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 6729 int desired = layout.getLineTop(linecount); 6730 6731 final Drawables dr = mDrawables; 6732 if (dr != null) { 6733 desired = Math.max(desired, dr.mDrawableHeightLeft); 6734 desired = Math.max(desired, dr.mDrawableHeightRight); 6735 } 6736 6737 desired += pad; 6738 6739 if (mMaxMode == LINES) { 6740 /* 6741 * Don't cap the hint to a certain number of lines. 6742 * (Do cap it, though, if we have a maximum pixel height.) 6743 */ 6744 if (cap) { 6745 if (linecount > mMaximum) { 6746 desired = layout.getLineTop(mMaximum); 6747 6748 if (dr != null) { 6749 desired = Math.max(desired, dr.mDrawableHeightLeft); 6750 desired = Math.max(desired, dr.mDrawableHeightRight); 6751 } 6752 6753 desired += pad; 6754 linecount = mMaximum; 6755 } 6756 } 6757 } else { 6758 desired = Math.min(desired, mMaximum); 6759 } 6760 6761 if (mMinMode == LINES) { 6762 if (linecount < mMinimum) { 6763 desired += getLineHeight() * (mMinimum - linecount); 6764 } 6765 } else { 6766 desired = Math.max(desired, mMinimum); 6767 } 6768 6769 // Check against our minimum height 6770 desired = Math.max(desired, getSuggestedMinimumHeight()); 6771 6772 return desired; 6773 } 6774 6775 /** 6776 * Check whether a change to the existing text layout requires a 6777 * new view layout. 6778 */ 6779 private void checkForResize() { 6780 boolean sizeChanged = false; 6781 6782 if (mLayout != null) { 6783 // Check if our width changed 6784 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 6785 sizeChanged = true; 6786 invalidate(); 6787 } 6788 6789 // Check if our height changed 6790 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 6791 int desiredHeight = getDesiredHeight(); 6792 6793 if (desiredHeight != this.getHeight()) { 6794 sizeChanged = true; 6795 } 6796 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 6797 if (mDesiredHeightAtMeasure >= 0) { 6798 int desiredHeight = getDesiredHeight(); 6799 6800 if (desiredHeight != mDesiredHeightAtMeasure) { 6801 sizeChanged = true; 6802 } 6803 } 6804 } 6805 } 6806 6807 if (sizeChanged) { 6808 requestLayout(); 6809 // caller will have already invalidated 6810 } 6811 } 6812 6813 /** 6814 * Check whether entirely new text requires a new view layout 6815 * or merely a new text layout. 6816 */ 6817 private void checkForRelayout() { 6818 // If we have a fixed width, we can just swap in a new text layout 6819 // if the text height stays the same or if the view height is fixed. 6820 6821 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 6822 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 6823 (mHint == null || mHintLayout != null) && 6824 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 6825 // Static width, so try making a new text layout. 6826 6827 int oldht = mLayout.getHeight(); 6828 int want = mLayout.getWidth(); 6829 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 6830 6831 /* 6832 * No need to bring the text into view, since the size is not 6833 * changing (unless we do the requestLayout(), in which case it 6834 * will happen at measure). 6835 */ 6836 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 6837 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 6838 false); 6839 6840 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 6841 // In a fixed-height view, so use our new text layout. 6842 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 6843 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 6844 invalidate(); 6845 return; 6846 } 6847 6848 // Dynamic height, but height has stayed the same, 6849 // so use our new text layout. 6850 if (mLayout.getHeight() == oldht && 6851 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 6852 invalidate(); 6853 return; 6854 } 6855 } 6856 6857 // We lose: the height has changed and we have a dynamic height. 6858 // Request a new view layout using our new text layout. 6859 requestLayout(); 6860 invalidate(); 6861 } else { 6862 // Dynamic width, so we have no choice but to request a new 6863 // view layout with a new text layout. 6864 nullLayouts(); 6865 requestLayout(); 6866 invalidate(); 6867 } 6868 } 6869 6870 @Override 6871 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 6872 super.onLayout(changed, left, top, right, bottom); 6873 if (mDeferScroll >= 0) { 6874 int curs = mDeferScroll; 6875 mDeferScroll = -1; 6876 bringPointIntoView(Math.min(curs, mText.length())); 6877 } 6878 } 6879 6880 private boolean isShowingHint() { 6881 return TextUtils.isEmpty(mText) && !TextUtils.isEmpty(mHint); 6882 } 6883 6884 /** 6885 * Returns true if anything changed. 6886 */ 6887 private boolean bringTextIntoView() { 6888 Layout layout = isShowingHint() ? mHintLayout : mLayout; 6889 int line = 0; 6890 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6891 line = layout.getLineCount() - 1; 6892 } 6893 6894 Layout.Alignment a = layout.getParagraphAlignment(line); 6895 int dir = layout.getParagraphDirection(line); 6896 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6897 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6898 int ht = layout.getHeight(); 6899 6900 int scrollx, scrolly; 6901 6902 // Convert to left, center, or right alignment. 6903 if (a == Layout.Alignment.ALIGN_NORMAL) { 6904 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_LEFT : 6905 Layout.Alignment.ALIGN_RIGHT; 6906 } else if (a == Layout.Alignment.ALIGN_OPPOSITE){ 6907 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_RIGHT : 6908 Layout.Alignment.ALIGN_LEFT; 6909 } 6910 6911 if (a == Layout.Alignment.ALIGN_CENTER) { 6912 /* 6913 * Keep centered if possible, or, if it is too wide to fit, 6914 * keep leading edge in view. 6915 */ 6916 6917 int left = (int) Math.floor(layout.getLineLeft(line)); 6918 int right = (int) Math.ceil(layout.getLineRight(line)); 6919 6920 if (right - left < hspace) { 6921 scrollx = (right + left) / 2 - hspace / 2; 6922 } else { 6923 if (dir < 0) { 6924 scrollx = right - hspace; 6925 } else { 6926 scrollx = left; 6927 } 6928 } 6929 } else if (a == Layout.Alignment.ALIGN_RIGHT) { 6930 int right = (int) Math.ceil(layout.getLineRight(line)); 6931 scrollx = right - hspace; 6932 } else { // a == Layout.Alignment.ALIGN_LEFT (will also be the default) 6933 scrollx = (int) Math.floor(layout.getLineLeft(line)); 6934 } 6935 6936 if (ht < vspace) { 6937 scrolly = 0; 6938 } else { 6939 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6940 scrolly = ht - vspace; 6941 } else { 6942 scrolly = 0; 6943 } 6944 } 6945 6946 if (scrollx != mScrollX || scrolly != mScrollY) { 6947 scrollTo(scrollx, scrolly); 6948 return true; 6949 } else { 6950 return false; 6951 } 6952 } 6953 6954 /** 6955 * Move the point, specified by the offset, into the view if it is needed. 6956 * This has to be called after layout. Returns true if anything changed. 6957 */ 6958 public boolean bringPointIntoView(int offset) { 6959 if (isLayoutRequested()) { 6960 mDeferScroll = offset; 6961 return false; 6962 } 6963 boolean changed = false; 6964 6965 Layout layout = isShowingHint() ? mHintLayout: mLayout; 6966 6967 if (layout == null) return changed; 6968 6969 int line = layout.getLineForOffset(offset); 6970 6971 int grav; 6972 6973 switch (layout.getParagraphAlignment(line)) { 6974 case ALIGN_LEFT: 6975 grav = 1; 6976 break; 6977 case ALIGN_RIGHT: 6978 grav = -1; 6979 break; 6980 case ALIGN_NORMAL: 6981 grav = layout.getParagraphDirection(line); 6982 break; 6983 case ALIGN_OPPOSITE: 6984 grav = -layout.getParagraphDirection(line); 6985 break; 6986 case ALIGN_CENTER: 6987 default: 6988 grav = 0; 6989 break; 6990 } 6991 6992 // We only want to clamp the cursor to fit within the layout width 6993 // in left-to-right modes, because in a right to left alignment, 6994 // we want to scroll to keep the line-right on the screen, as other 6995 // lines are likely to have text flush with the right margin, which 6996 // we want to keep visible. 6997 // A better long-term solution would probably be to measure both 6998 // the full line and a blank-trimmed version, and, for example, use 6999 // the latter measurement for centering and right alignment, but for 7000 // the time being we only implement the cursor clamping in left to 7001 // right where it is most likely to be annoying. 7002 final boolean clamped = grav > 0; 7003 // FIXME: Is it okay to truncate this, or should we round? 7004 final int x = (int)layout.getPrimaryHorizontal(offset, clamped); 7005 final int top = layout.getLineTop(line); 7006 final int bottom = layout.getLineTop(line + 1); 7007 7008 int left = (int) Math.floor(layout.getLineLeft(line)); 7009 int right = (int) Math.ceil(layout.getLineRight(line)); 7010 int ht = layout.getHeight(); 7011 7012 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 7013 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 7014 if (!mHorizontallyScrolling && right - left > hspace && right > x) { 7015 // If cursor has been clamped, make sure we don't scroll. 7016 right = Math.max(x, left + hspace); 7017 } 7018 7019 int hslack = (bottom - top) / 2; 7020 int vslack = hslack; 7021 7022 if (vslack > vspace / 4) 7023 vslack = vspace / 4; 7024 if (hslack > hspace / 4) 7025 hslack = hspace / 4; 7026 7027 int hs = mScrollX; 7028 int vs = mScrollY; 7029 7030 if (top - vs < vslack) 7031 vs = top - vslack; 7032 if (bottom - vs > vspace - vslack) 7033 vs = bottom - (vspace - vslack); 7034 if (ht - vs < vspace) 7035 vs = ht - vspace; 7036 if (0 - vs > 0) 7037 vs = 0; 7038 7039 if (grav != 0) { 7040 if (x - hs < hslack) { 7041 hs = x - hslack; 7042 } 7043 if (x - hs > hspace - hslack) { 7044 hs = x - (hspace - hslack); 7045 } 7046 } 7047 7048 if (grav < 0) { 7049 if (left - hs > 0) 7050 hs = left; 7051 if (right - hs < hspace) 7052 hs = right - hspace; 7053 } else if (grav > 0) { 7054 if (right - hs < hspace) 7055 hs = right - hspace; 7056 if (left - hs > 0) 7057 hs = left; 7058 } else /* grav == 0 */ { 7059 if (right - left <= hspace) { 7060 /* 7061 * If the entire text fits, center it exactly. 7062 */ 7063 hs = left - (hspace - (right - left)) / 2; 7064 } else if (x > right - hslack) { 7065 /* 7066 * If we are near the right edge, keep the right edge 7067 * at the edge of the view. 7068 */ 7069 hs = right - hspace; 7070 } else if (x < left + hslack) { 7071 /* 7072 * If we are near the left edge, keep the left edge 7073 * at the edge of the view. 7074 */ 7075 hs = left; 7076 } else if (left > hs) { 7077 /* 7078 * Is there whitespace visible at the left? Fix it if so. 7079 */ 7080 hs = left; 7081 } else if (right < hs + hspace) { 7082 /* 7083 * Is there whitespace visible at the right? Fix it if so. 7084 */ 7085 hs = right - hspace; 7086 } else { 7087 /* 7088 * Otherwise, float as needed. 7089 */ 7090 if (x - hs < hslack) { 7091 hs = x - hslack; 7092 } 7093 if (x - hs > hspace - hslack) { 7094 hs = x - (hspace - hslack); 7095 } 7096 } 7097 } 7098 7099 if (hs != mScrollX || vs != mScrollY) { 7100 if (mScroller == null) { 7101 scrollTo(hs, vs); 7102 } else { 7103 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 7104 int dx = hs - mScrollX; 7105 int dy = vs - mScrollY; 7106 7107 if (duration > ANIMATED_SCROLL_GAP) { 7108 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 7109 awakenScrollBars(mScroller.getDuration()); 7110 invalidate(); 7111 } else { 7112 if (!mScroller.isFinished()) { 7113 mScroller.abortAnimation(); 7114 } 7115 7116 scrollBy(dx, dy); 7117 } 7118 7119 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 7120 } 7121 7122 changed = true; 7123 } 7124 7125 if (isFocused()) { 7126 // This offsets because getInterestingRect() is in terms of viewport coordinates, but 7127 // requestRectangleOnScreen() is in terms of content coordinates. 7128 7129 // The offsets here are to ensure the rectangle we are using is 7130 // within our view bounds, in case the cursor is on the far left 7131 // or right. If it isn't withing the bounds, then this request 7132 // will be ignored. 7133 if (mTempRect == null) mTempRect = new Rect(); 7134 mTempRect.set(x - 2, top, x + 2, bottom); 7135 getInterestingRect(mTempRect, line); 7136 mTempRect.offset(mScrollX, mScrollY); 7137 7138 if (requestRectangleOnScreen(mTempRect)) { 7139 changed = true; 7140 } 7141 } 7142 7143 return changed; 7144 } 7145 7146 /** 7147 * Move the cursor, if needed, so that it is at an offset that is visible 7148 * to the user. This will not move the cursor if it represents more than 7149 * one character (a selection range). This will only work if the 7150 * TextView contains spannable text; otherwise it will do nothing. 7151 * 7152 * @return True if the cursor was actually moved, false otherwise. 7153 */ 7154 public boolean moveCursorToVisibleOffset() { 7155 if (!(mText instanceof Spannable)) { 7156 return false; 7157 } 7158 int start = getSelectionStart(); 7159 int end = getSelectionEnd(); 7160 if (start != end) { 7161 return false; 7162 } 7163 7164 // First: make sure the line is visible on screen: 7165 7166 int line = mLayout.getLineForOffset(start); 7167 7168 final int top = mLayout.getLineTop(line); 7169 final int bottom = mLayout.getLineTop(line + 1); 7170 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 7171 int vslack = (bottom - top) / 2; 7172 if (vslack > vspace / 4) 7173 vslack = vspace / 4; 7174 final int vs = mScrollY; 7175 7176 if (top < (vs+vslack)) { 7177 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 7178 } else if (bottom > (vspace+vs-vslack)) { 7179 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 7180 } 7181 7182 // Next: make sure the character is visible on screen: 7183 7184 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 7185 final int hs = mScrollX; 7186 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 7187 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 7188 7189 // line might contain bidirectional text 7190 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 7191 final int highChar = leftChar > rightChar ? leftChar : rightChar; 7192 7193 int newStart = start; 7194 if (newStart < lowChar) { 7195 newStart = lowChar; 7196 } else if (newStart > highChar) { 7197 newStart = highChar; 7198 } 7199 7200 if (newStart != start) { 7201 Selection.setSelection((Spannable)mText, newStart); 7202 return true; 7203 } 7204 7205 return false; 7206 } 7207 7208 @Override 7209 public void computeScroll() { 7210 if (mScroller != null) { 7211 if (mScroller.computeScrollOffset()) { 7212 mScrollX = mScroller.getCurrX(); 7213 mScrollY = mScroller.getCurrY(); 7214 invalidateParentCaches(); 7215 postInvalidate(); // So we draw again 7216 } 7217 } 7218 } 7219 7220 private void getInterestingRect(Rect r, int line) { 7221 convertFromViewportToContentCoordinates(r); 7222 7223 // Rectangle can can be expanded on first and last line to take 7224 // padding into account. 7225 // TODO Take left/right padding into account too? 7226 if (line == 0) r.top -= getExtendedPaddingTop(); 7227 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 7228 } 7229 7230 private void convertFromViewportToContentCoordinates(Rect r) { 7231 final int horizontalOffset = viewportToContentHorizontalOffset(); 7232 r.left += horizontalOffset; 7233 r.right += horizontalOffset; 7234 7235 final int verticalOffset = viewportToContentVerticalOffset(); 7236 r.top += verticalOffset; 7237 r.bottom += verticalOffset; 7238 } 7239 7240 int viewportToContentHorizontalOffset() { 7241 return getCompoundPaddingLeft() - mScrollX; 7242 } 7243 7244 int viewportToContentVerticalOffset() { 7245 int offset = getExtendedPaddingTop() - mScrollY; 7246 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 7247 offset += getVerticalOffset(false); 7248 } 7249 return offset; 7250 } 7251 7252 @Override 7253 public void debug(int depth) { 7254 super.debug(depth); 7255 7256 String output = debugIndent(depth); 7257 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 7258 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 7259 + "} "; 7260 7261 if (mText != null) { 7262 7263 output += "mText=\"" + mText + "\" "; 7264 if (mLayout != null) { 7265 output += "mLayout width=" + mLayout.getWidth() 7266 + " height=" + mLayout.getHeight(); 7267 } 7268 } else { 7269 output += "mText=NULL"; 7270 } 7271 Log.d(VIEW_LOG_TAG, output); 7272 } 7273 7274 /** 7275 * Convenience for {@link Selection#getSelectionStart}. 7276 */ 7277 @ViewDebug.ExportedProperty(category = "text") 7278 public int getSelectionStart() { 7279 return Selection.getSelectionStart(getText()); 7280 } 7281 7282 /** 7283 * Convenience for {@link Selection#getSelectionEnd}. 7284 */ 7285 @ViewDebug.ExportedProperty(category = "text") 7286 public int getSelectionEnd() { 7287 return Selection.getSelectionEnd(getText()); 7288 } 7289 7290 /** 7291 * Return true iff there is a selection inside this text view. 7292 */ 7293 public boolean hasSelection() { 7294 final int selectionStart = getSelectionStart(); 7295 final int selectionEnd = getSelectionEnd(); 7296 7297 return selectionStart >= 0 && selectionStart != selectionEnd; 7298 } 7299 7300 /** 7301 * Sets the properties of this field (lines, horizontally scrolling, 7302 * transformation method) to be for a single-line input. 7303 * 7304 * @attr ref android.R.styleable#TextView_singleLine 7305 */ 7306 public void setSingleLine() { 7307 setSingleLine(true); 7308 } 7309 7310 /** 7311 * Sets the properties of this field to transform input to ALL CAPS 7312 * display. This may use a "small caps" formatting if available. 7313 * This setting will be ignored if this field is editable or selectable. 7314 * 7315 * This call replaces the current transformation method. Disabling this 7316 * will not necessarily restore the previous behavior from before this 7317 * was enabled. 7318 * 7319 * @see #setTransformationMethod(TransformationMethod) 7320 * @attr ref android.R.styleable#TextView_textAllCaps 7321 */ 7322 public void setAllCaps(boolean allCaps) { 7323 if (allCaps) { 7324 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 7325 } else { 7326 setTransformationMethod(null); 7327 } 7328 } 7329 7330 /** 7331 * If true, sets the properties of this field (number of lines, horizontally scrolling, 7332 * transformation method) to be for a single-line input; if false, restores these to the default 7333 * conditions. 7334 * 7335 * Note that the default conditions are not necessarily those that were in effect prior this 7336 * method, and you may want to reset these properties to your custom values. 7337 * 7338 * @attr ref android.R.styleable#TextView_singleLine 7339 */ 7340 @android.view.RemotableViewMethod 7341 public void setSingleLine(boolean singleLine) { 7342 // Could be used, but may break backward compatibility. 7343 // if (mSingleLine == singleLine) return; 7344 setInputTypeSingleLine(singleLine); 7345 applySingleLine(singleLine, true, true); 7346 } 7347 7348 /** 7349 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 7350 * @param singleLine 7351 */ 7352 private void setInputTypeSingleLine(boolean singleLine) { 7353 if (mEditor != null && 7354 (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 7355 if (singleLine) { 7356 mEditor.mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7357 } else { 7358 mEditor.mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7359 } 7360 } 7361 } 7362 7363 private void applySingleLine(boolean singleLine, boolean applyTransformation, 7364 boolean changeMaxLines) { 7365 mSingleLine = singleLine; 7366 if (singleLine) { 7367 setLines(1); 7368 setHorizontallyScrolling(true); 7369 if (applyTransformation) { 7370 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 7371 } 7372 } else { 7373 if (changeMaxLines) { 7374 setMaxLines(Integer.MAX_VALUE); 7375 } 7376 setHorizontallyScrolling(false); 7377 if (applyTransformation) { 7378 setTransformationMethod(null); 7379 } 7380 } 7381 } 7382 7383 /** 7384 * Causes words in the text that are longer than the view is wide 7385 * to be ellipsized instead of broken in the middle. You may also 7386 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 7387 * to constrain the text to a single line. Use <code>null</code> 7388 * to turn off ellipsizing. 7389 * 7390 * If {@link #setMaxLines} has been used to set two or more lines, 7391 * only {@link android.text.TextUtils.TruncateAt#END} and 7392 * {@link android.text.TextUtils.TruncateAt#MARQUEE} are supported 7393 * (other ellipsizing types will not do anything). 7394 * 7395 * @attr ref android.R.styleable#TextView_ellipsize 7396 */ 7397 public void setEllipsize(TextUtils.TruncateAt where) { 7398 // TruncateAt is an enum. != comparison is ok between these singleton objects. 7399 if (mEllipsize != where) { 7400 mEllipsize = where; 7401 7402 if (mLayout != null) { 7403 nullLayouts(); 7404 requestLayout(); 7405 invalidate(); 7406 } 7407 } 7408 } 7409 7410 /** 7411 * Sets how many times to repeat the marquee animation. Only applied if the 7412 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 7413 * 7414 * @see #getMarqueeRepeatLimit() 7415 * 7416 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 7417 */ 7418 public void setMarqueeRepeatLimit(int marqueeLimit) { 7419 mMarqueeRepeatLimit = marqueeLimit; 7420 } 7421 7422 /** 7423 * Gets the number of times the marquee animation is repeated. Only meaningful if the 7424 * TextView has marquee enabled. 7425 * 7426 * @return the number of times the marquee animation is repeated. -1 if the animation 7427 * repeats indefinitely 7428 * 7429 * @see #setMarqueeRepeatLimit(int) 7430 * 7431 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 7432 */ 7433 public int getMarqueeRepeatLimit() { 7434 return mMarqueeRepeatLimit; 7435 } 7436 7437 /** 7438 * Returns where, if anywhere, words that are longer than the view 7439 * is wide should be ellipsized. 7440 */ 7441 @ViewDebug.ExportedProperty 7442 public TextUtils.TruncateAt getEllipsize() { 7443 return mEllipsize; 7444 } 7445 7446 /** 7447 * Set the TextView so that when it takes focus, all the text is 7448 * selected. 7449 * 7450 * @attr ref android.R.styleable#TextView_selectAllOnFocus 7451 */ 7452 @android.view.RemotableViewMethod 7453 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 7454 createEditorIfNeeded(); 7455 mEditor.mSelectAllOnFocus = selectAllOnFocus; 7456 7457 if (selectAllOnFocus && !(mText instanceof Spannable)) { 7458 setText(mText, BufferType.SPANNABLE); 7459 } 7460 } 7461 7462 /** 7463 * Set whether the cursor is visible. The default is true. Note that this property only 7464 * makes sense for editable TextView. 7465 * 7466 * @see #isCursorVisible() 7467 * 7468 * @attr ref android.R.styleable#TextView_cursorVisible 7469 */ 7470 @android.view.RemotableViewMethod 7471 public void setCursorVisible(boolean visible) { 7472 if (visible && mEditor == null) return; // visible is the default value with no edit data 7473 createEditorIfNeeded(); 7474 if (mEditor.mCursorVisible != visible) { 7475 mEditor.mCursorVisible = visible; 7476 invalidate(); 7477 7478 mEditor.makeBlink(); 7479 7480 // InsertionPointCursorController depends on mCursorVisible 7481 mEditor.prepareCursorControllers(); 7482 } 7483 } 7484 7485 /** 7486 * @return whether or not the cursor is visible (assuming this TextView is editable) 7487 * 7488 * @see #setCursorVisible(boolean) 7489 * 7490 * @attr ref android.R.styleable#TextView_cursorVisible 7491 */ 7492 public boolean isCursorVisible() { 7493 // true is the default value 7494 return mEditor == null ? true : mEditor.mCursorVisible; 7495 } 7496 7497 private boolean canMarquee() { 7498 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 7499 return width > 0 && (mLayout.getLineWidth(0) > width || 7500 (mMarqueeFadeMode != MARQUEE_FADE_NORMAL && mSavedMarqueeModeLayout != null && 7501 mSavedMarqueeModeLayout.getLineWidth(0) > width)); 7502 } 7503 7504 private void startMarquee() { 7505 // Do not ellipsize EditText 7506 if (getKeyListener() != null) return; 7507 7508 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 7509 return; 7510 } 7511 7512 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 7513 getLineCount() == 1 && canMarquee()) { 7514 7515 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 7516 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_FADE; 7517 final Layout tmp = mLayout; 7518 mLayout = mSavedMarqueeModeLayout; 7519 mSavedMarqueeModeLayout = tmp; 7520 setHorizontalFadingEdgeEnabled(true); 7521 requestLayout(); 7522 invalidate(); 7523 } 7524 7525 if (mMarquee == null) mMarquee = new Marquee(this); 7526 mMarquee.start(mMarqueeRepeatLimit); 7527 } 7528 } 7529 7530 private void stopMarquee() { 7531 if (mMarquee != null && !mMarquee.isStopped()) { 7532 mMarquee.stop(); 7533 } 7534 7535 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_FADE) { 7536 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 7537 final Layout tmp = mSavedMarqueeModeLayout; 7538 mSavedMarqueeModeLayout = mLayout; 7539 mLayout = tmp; 7540 setHorizontalFadingEdgeEnabled(false); 7541 requestLayout(); 7542 invalidate(); 7543 } 7544 } 7545 7546 private void startStopMarquee(boolean start) { 7547 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7548 if (start) { 7549 startMarquee(); 7550 } else { 7551 stopMarquee(); 7552 } 7553 } 7554 } 7555 7556 /** 7557 * This method is called when the text is changed, in case any subclasses 7558 * would like to know. 7559 * 7560 * Within <code>text</code>, the <code>lengthAfter</code> characters 7561 * beginning at <code>start</code> have just replaced old text that had 7562 * length <code>lengthBefore</code>. It is an error to attempt to make 7563 * changes to <code>text</code> from this callback. 7564 * 7565 * @param text The text the TextView is displaying 7566 * @param start The offset of the start of the range of the text that was 7567 * modified 7568 * @param lengthBefore The length of the former text that has been replaced 7569 * @param lengthAfter The length of the replacement modified text 7570 */ 7571 protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { 7572 // intentionally empty, template pattern method can be overridden by subclasses 7573 } 7574 7575 /** 7576 * This method is called when the selection has changed, in case any 7577 * subclasses would like to know. 7578 * 7579 * @param selStart The new selection start location. 7580 * @param selEnd The new selection end location. 7581 */ 7582 protected void onSelectionChanged(int selStart, int selEnd) { 7583 sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED); 7584 } 7585 7586 /** 7587 * Adds a TextWatcher to the list of those whose methods are called 7588 * whenever this TextView's text changes. 7589 * <p> 7590 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 7591 * not called after {@link #setText} calls. Now, doing {@link #setText} 7592 * if there are any text changed listeners forces the buffer type to 7593 * Editable if it would not otherwise be and does call this method. 7594 */ 7595 public void addTextChangedListener(TextWatcher watcher) { 7596 if (mListeners == null) { 7597 mListeners = new ArrayList<TextWatcher>(); 7598 } 7599 7600 mListeners.add(watcher); 7601 } 7602 7603 /** 7604 * Removes the specified TextWatcher from the list of those whose 7605 * methods are called 7606 * whenever this TextView's text changes. 7607 */ 7608 public void removeTextChangedListener(TextWatcher watcher) { 7609 if (mListeners != null) { 7610 int i = mListeners.indexOf(watcher); 7611 7612 if (i >= 0) { 7613 mListeners.remove(i); 7614 } 7615 } 7616 } 7617 7618 private void sendBeforeTextChanged(CharSequence text, int start, int before, int after) { 7619 if (mListeners != null) { 7620 final ArrayList<TextWatcher> list = mListeners; 7621 final int count = list.size(); 7622 for (int i = 0; i < count; i++) { 7623 list.get(i).beforeTextChanged(text, start, before, after); 7624 } 7625 } 7626 7627 // The spans that are inside or intersect the modified region no longer make sense 7628 removeIntersectingNonAdjacentSpans(start, start + before, SpellCheckSpan.class); 7629 removeIntersectingNonAdjacentSpans(start, start + before, SuggestionSpan.class); 7630 } 7631 7632 // Removes all spans that are inside or actually overlap the start..end range 7633 private <T> void removeIntersectingNonAdjacentSpans(int start, int end, Class<T> type) { 7634 if (!(mText instanceof Editable)) return; 7635 Editable text = (Editable) mText; 7636 7637 T[] spans = text.getSpans(start, end, type); 7638 final int length = spans.length; 7639 for (int i = 0; i < length; i++) { 7640 final int spanStart = text.getSpanStart(spans[i]); 7641 final int spanEnd = text.getSpanEnd(spans[i]); 7642 if (spanEnd == start || spanStart == end) break; 7643 text.removeSpan(spans[i]); 7644 } 7645 } 7646 7647 void removeAdjacentSuggestionSpans(final int pos) { 7648 if (!(mText instanceof Editable)) return; 7649 final Editable text = (Editable) mText; 7650 7651 final SuggestionSpan[] spans = text.getSpans(pos, pos, SuggestionSpan.class); 7652 final int length = spans.length; 7653 for (int i = 0; i < length; i++) { 7654 final int spanStart = text.getSpanStart(spans[i]); 7655 final int spanEnd = text.getSpanEnd(spans[i]); 7656 if (spanEnd == pos || spanStart == pos) { 7657 if (SpellChecker.haveWordBoundariesChanged(text, pos, pos, spanStart, spanEnd)) { 7658 text.removeSpan(spans[i]); 7659 } 7660 } 7661 } 7662 } 7663 7664 /** 7665 * Not private so it can be called from an inner class without going 7666 * through a thunk. 7667 */ 7668 void sendOnTextChanged(CharSequence text, int start, int before, int after) { 7669 if (mListeners != null) { 7670 final ArrayList<TextWatcher> list = mListeners; 7671 final int count = list.size(); 7672 for (int i = 0; i < count; i++) { 7673 list.get(i).onTextChanged(text, start, before, after); 7674 } 7675 } 7676 7677 if (mEditor != null) mEditor.sendOnTextChanged(start, after); 7678 } 7679 7680 /** 7681 * Not private so it can be called from an inner class without going 7682 * through a thunk. 7683 */ 7684 void sendAfterTextChanged(Editable text) { 7685 if (mListeners != null) { 7686 final ArrayList<TextWatcher> list = mListeners; 7687 final int count = list.size(); 7688 for (int i = 0; i < count; i++) { 7689 list.get(i).afterTextChanged(text); 7690 } 7691 } 7692 hideErrorIfUnchanged(); 7693 } 7694 7695 void updateAfterEdit() { 7696 invalidate(); 7697 int curs = getSelectionStart(); 7698 7699 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 7700 registerForPreDraw(); 7701 } 7702 7703 checkForResize(); 7704 7705 if (curs >= 0) { 7706 mHighlightPathBogus = true; 7707 if (mEditor != null) mEditor.makeBlink(); 7708 bringPointIntoView(curs); 7709 } 7710 } 7711 7712 /** 7713 * Not private so it can be called from an inner class without going 7714 * through a thunk. 7715 */ 7716 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 7717 final Editor.InputMethodState ims = mEditor == null ? null : mEditor.mInputMethodState; 7718 if (ims == null || ims.mBatchEditNesting == 0) { 7719 updateAfterEdit(); 7720 } 7721 if (ims != null) { 7722 ims.mContentChanged = true; 7723 if (ims.mChangedStart < 0) { 7724 ims.mChangedStart = start; 7725 ims.mChangedEnd = start+before; 7726 } else { 7727 ims.mChangedStart = Math.min(ims.mChangedStart, start); 7728 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 7729 } 7730 ims.mChangedDelta += after-before; 7731 } 7732 resetErrorChangedFlag(); 7733 sendOnTextChanged(buffer, start, before, after); 7734 onTextChanged(buffer, start, before, after); 7735 } 7736 7737 /** 7738 * Not private so it can be called from an inner class without going 7739 * through a thunk. 7740 */ 7741 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 7742 // XXX Make the start and end move together if this ends up 7743 // spending too much time invalidating. 7744 7745 boolean selChanged = false; 7746 int newSelStart=-1, newSelEnd=-1; 7747 7748 final Editor.InputMethodState ims = mEditor == null ? null : mEditor.mInputMethodState; 7749 7750 if (what == Selection.SELECTION_END) { 7751 selChanged = true; 7752 newSelEnd = newStart; 7753 7754 if (oldStart >= 0 || newStart >= 0) { 7755 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 7756 checkForResize(); 7757 registerForPreDraw(); 7758 if (mEditor != null) mEditor.makeBlink(); 7759 } 7760 } 7761 7762 if (what == Selection.SELECTION_START) { 7763 selChanged = true; 7764 newSelStart = newStart; 7765 7766 if (oldStart >= 0 || newStart >= 0) { 7767 int end = Selection.getSelectionEnd(buf); 7768 invalidateCursor(end, oldStart, newStart); 7769 } 7770 } 7771 7772 if (selChanged) { 7773 mHighlightPathBogus = true; 7774 if (mEditor != null && !isFocused()) mEditor.mSelectionMoved = true; 7775 7776 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 7777 if (newSelStart < 0) { 7778 newSelStart = Selection.getSelectionStart(buf); 7779 } 7780 if (newSelEnd < 0) { 7781 newSelEnd = Selection.getSelectionEnd(buf); 7782 } 7783 onSelectionChanged(newSelStart, newSelEnd); 7784 } 7785 } 7786 7787 if (what instanceof UpdateAppearance || what instanceof ParagraphStyle || 7788 what instanceof CharacterStyle) { 7789 if (ims == null || ims.mBatchEditNesting == 0) { 7790 invalidate(); 7791 mHighlightPathBogus = true; 7792 checkForResize(); 7793 } else { 7794 ims.mContentChanged = true; 7795 } 7796 if (mEditor != null) { 7797 if (oldStart >= 0) mEditor.invalidateTextDisplayList(mLayout, oldStart, oldEnd); 7798 if (newStart >= 0) mEditor.invalidateTextDisplayList(mLayout, newStart, newEnd); 7799 } 7800 } 7801 7802 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 7803 mHighlightPathBogus = true; 7804 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 7805 ims.mSelectionModeChanged = true; 7806 } 7807 7808 if (Selection.getSelectionStart(buf) >= 0) { 7809 if (ims == null || ims.mBatchEditNesting == 0) { 7810 invalidateCursor(); 7811 } else { 7812 ims.mCursorChanged = true; 7813 } 7814 } 7815 } 7816 7817 if (what instanceof ParcelableSpan) { 7818 // If this is a span that can be sent to a remote process, 7819 // the current extract editor would be interested in it. 7820 if (ims != null && ims.mExtractedTextRequest != null) { 7821 if (ims.mBatchEditNesting != 0) { 7822 if (oldStart >= 0) { 7823 if (ims.mChangedStart > oldStart) { 7824 ims.mChangedStart = oldStart; 7825 } 7826 if (ims.mChangedStart > oldEnd) { 7827 ims.mChangedStart = oldEnd; 7828 } 7829 } 7830 if (newStart >= 0) { 7831 if (ims.mChangedStart > newStart) { 7832 ims.mChangedStart = newStart; 7833 } 7834 if (ims.mChangedStart > newEnd) { 7835 ims.mChangedStart = newEnd; 7836 } 7837 } 7838 } else { 7839 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 7840 + oldStart + "-" + oldEnd + "," 7841 + newStart + "-" + newEnd + " " + what); 7842 ims.mContentChanged = true; 7843 } 7844 } 7845 } 7846 7847 if (mEditor != null && mEditor.mSpellChecker != null && newStart < 0 && 7848 what instanceof SpellCheckSpan) { 7849 mEditor.mSpellChecker.onSpellCheckSpanRemoved((SpellCheckSpan) what); 7850 } 7851 } 7852 7853 /** 7854 * @hide 7855 */ 7856 @Override 7857 public void dispatchFinishTemporaryDetach() { 7858 mDispatchTemporaryDetach = true; 7859 super.dispatchFinishTemporaryDetach(); 7860 mDispatchTemporaryDetach = false; 7861 } 7862 7863 @Override 7864 public void onStartTemporaryDetach() { 7865 super.onStartTemporaryDetach(); 7866 // Only track when onStartTemporaryDetach() is called directly, 7867 // usually because this instance is an editable field in a list 7868 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 7869 7870 // Tell the editor that we are temporarily detached. It can use this to preserve 7871 // selection state as needed. 7872 if (mEditor != null) mEditor.mTemporaryDetach = true; 7873 } 7874 7875 @Override 7876 public void onFinishTemporaryDetach() { 7877 super.onFinishTemporaryDetach(); 7878 // Only track when onStartTemporaryDetach() is called directly, 7879 // usually because this instance is an editable field in a list 7880 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 7881 if (mEditor != null) mEditor.mTemporaryDetach = false; 7882 } 7883 7884 @Override 7885 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 7886 if (mTemporaryDetach) { 7887 // If we are temporarily in the detach state, then do nothing. 7888 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7889 return; 7890 } 7891 7892 if (mEditor != null) mEditor.onFocusChanged(focused, direction); 7893 7894 if (focused) { 7895 if (mText instanceof Spannable) { 7896 Spannable sp = (Spannable) mText; 7897 MetaKeyKeyListener.resetMetaState(sp); 7898 } 7899 } 7900 7901 startStopMarquee(focused); 7902 7903 if (mTransformation != null) { 7904 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 7905 } 7906 7907 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7908 } 7909 7910 @Override 7911 public void onWindowFocusChanged(boolean hasWindowFocus) { 7912 super.onWindowFocusChanged(hasWindowFocus); 7913 7914 if (mEditor != null) mEditor.onWindowFocusChanged(hasWindowFocus); 7915 7916 startStopMarquee(hasWindowFocus); 7917 } 7918 7919 @Override 7920 protected void onVisibilityChanged(View changedView, int visibility) { 7921 super.onVisibilityChanged(changedView, visibility); 7922 if (mEditor != null && visibility != VISIBLE) { 7923 mEditor.hideControllers(); 7924 } 7925 } 7926 7927 /** 7928 * Use {@link BaseInputConnection#removeComposingSpans 7929 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 7930 * state from this text view. 7931 */ 7932 public void clearComposingText() { 7933 if (mText instanceof Spannable) { 7934 BaseInputConnection.removeComposingSpans((Spannable)mText); 7935 } 7936 } 7937 7938 @Override 7939 public void setSelected(boolean selected) { 7940 boolean wasSelected = isSelected(); 7941 7942 super.setSelected(selected); 7943 7944 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7945 if (selected) { 7946 startMarquee(); 7947 } else { 7948 stopMarquee(); 7949 } 7950 } 7951 } 7952 7953 @Override 7954 public boolean onTouchEvent(MotionEvent event) { 7955 final int action = event.getActionMasked(); 7956 7957 if (mEditor != null) mEditor.onTouchEvent(event); 7958 7959 final boolean superResult = super.onTouchEvent(event); 7960 7961 /* 7962 * Don't handle the release after a long press, because it will 7963 * move the selection away from whatever the menu action was 7964 * trying to affect. 7965 */ 7966 if (mEditor != null && mEditor.mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 7967 mEditor.mDiscardNextActionUp = false; 7968 return superResult; 7969 } 7970 7971 final boolean touchIsFinished = (action == MotionEvent.ACTION_UP) && 7972 (mEditor == null || !mEditor.mIgnoreActionUpEvent) && isFocused(); 7973 7974 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 7975 && mText instanceof Spannable && mLayout != null) { 7976 boolean handled = false; 7977 7978 if (mMovement != null) { 7979 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 7980 } 7981 7982 final boolean textIsSelectable = isTextSelectable(); 7983 if (touchIsFinished && mLinksClickable && mAutoLinkMask != 0 && textIsSelectable) { 7984 // The LinkMovementMethod which should handle taps on links has not been installed 7985 // on non editable text that support text selection. 7986 // We reproduce its behavior here to open links for these. 7987 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 7988 getSelectionEnd(), ClickableSpan.class); 7989 7990 if (links.length > 0) { 7991 links[0].onClick(this); 7992 handled = true; 7993 } 7994 } 7995 7996 if (touchIsFinished && (isTextEditable() || textIsSelectable)) { 7997 // Show the IME, except when selecting in read-only text. 7998 final InputMethodManager imm = InputMethodManager.peekInstance(); 7999 viewClicked(imm); 8000 if (!textIsSelectable && mEditor.mShowSoftInputOnFocus) { 8001 handled |= imm != null && imm.showSoftInput(this, 0); 8002 } 8003 8004 // The above condition ensures that the mEditor is not null 8005 mEditor.onTouchUpEvent(event); 8006 8007 handled = true; 8008 } 8009 8010 if (handled) { 8011 return true; 8012 } 8013 } 8014 8015 return superResult; 8016 } 8017 8018 @Override 8019 public boolean onGenericMotionEvent(MotionEvent event) { 8020 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 8021 try { 8022 if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) { 8023 return true; 8024 } 8025 } catch (AbstractMethodError ex) { 8026 // onGenericMotionEvent was added to the MovementMethod interface in API 12. 8027 // Ignore its absence in case third party applications implemented the 8028 // interface directly. 8029 } 8030 } 8031 return super.onGenericMotionEvent(event); 8032 } 8033 8034 /** 8035 * @return True iff this TextView contains a text that can be edited, or if this is 8036 * a selectable TextView. 8037 */ 8038 boolean isTextEditable() { 8039 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 8040 } 8041 8042 /** 8043 * Returns true, only while processing a touch gesture, if the initial 8044 * touch down event caused focus to move to the text view and as a result 8045 * its selection changed. Only valid while processing the touch gesture 8046 * of interest, in an editable text view. 8047 */ 8048 public boolean didTouchFocusSelect() { 8049 return mEditor != null && mEditor.mTouchFocusSelected; 8050 } 8051 8052 @Override 8053 public void cancelLongPress() { 8054 super.cancelLongPress(); 8055 if (mEditor != null) mEditor.mIgnoreActionUpEvent = true; 8056 } 8057 8058 @Override 8059 public boolean onTrackballEvent(MotionEvent event) { 8060 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 8061 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 8062 return true; 8063 } 8064 } 8065 8066 return super.onTrackballEvent(event); 8067 } 8068 8069 public void setScroller(Scroller s) { 8070 mScroller = s; 8071 } 8072 8073 @Override 8074 protected float getLeftFadingEdgeStrength() { 8075 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 8076 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 8077 if (mMarquee != null && !mMarquee.isStopped()) { 8078 final Marquee marquee = mMarquee; 8079 if (marquee.shouldDrawLeftFade()) { 8080 final float scroll = marquee.getScroll(); 8081 return scroll / getHorizontalFadingEdgeLength(); 8082 } else { 8083 return 0.0f; 8084 } 8085 } else if (getLineCount() == 1) { 8086 final int layoutDirection = getLayoutDirection(); 8087 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 8088 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 8089 case Gravity.LEFT: 8090 return 0.0f; 8091 case Gravity.RIGHT: 8092 return (mLayout.getLineRight(0) - (mRight - mLeft) - 8093 getCompoundPaddingLeft() - getCompoundPaddingRight() - 8094 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 8095 case Gravity.CENTER_HORIZONTAL: 8096 case Gravity.FILL_HORIZONTAL: 8097 final int textDirection = mLayout.getParagraphDirection(0); 8098 if (textDirection == Layout.DIR_LEFT_TO_RIGHT) { 8099 return 0.0f; 8100 } else { 8101 return (mLayout.getLineRight(0) - (mRight - mLeft) - 8102 getCompoundPaddingLeft() - getCompoundPaddingRight() - 8103 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 8104 } 8105 } 8106 } 8107 } 8108 return super.getLeftFadingEdgeStrength(); 8109 } 8110 8111 @Override 8112 protected float getRightFadingEdgeStrength() { 8113 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 8114 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 8115 if (mMarquee != null && !mMarquee.isStopped()) { 8116 final Marquee marquee = mMarquee; 8117 final float maxFadeScroll = marquee.getMaxFadeScroll(); 8118 final float scroll = marquee.getScroll(); 8119 return (maxFadeScroll - scroll) / getHorizontalFadingEdgeLength(); 8120 } else if (getLineCount() == 1) { 8121 final int layoutDirection = getLayoutDirection(); 8122 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 8123 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 8124 case Gravity.LEFT: 8125 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 8126 getCompoundPaddingRight(); 8127 final float lineWidth = mLayout.getLineWidth(0); 8128 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 8129 case Gravity.RIGHT: 8130 return 0.0f; 8131 case Gravity.CENTER_HORIZONTAL: 8132 case Gravity.FILL_HORIZONTAL: 8133 final int textDirection = mLayout.getParagraphDirection(0); 8134 if (textDirection == Layout.DIR_RIGHT_TO_LEFT) { 8135 return 0.0f; 8136 } else { 8137 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 8138 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 8139 getHorizontalFadingEdgeLength(); 8140 } 8141 } 8142 } 8143 } 8144 return super.getRightFadingEdgeStrength(); 8145 } 8146 8147 @Override 8148 protected int computeHorizontalScrollRange() { 8149 if (mLayout != null) { 8150 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 8151 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 8152 } 8153 8154 return super.computeHorizontalScrollRange(); 8155 } 8156 8157 @Override 8158 protected int computeVerticalScrollRange() { 8159 if (mLayout != null) 8160 return mLayout.getHeight(); 8161 8162 return super.computeVerticalScrollRange(); 8163 } 8164 8165 @Override 8166 protected int computeVerticalScrollExtent() { 8167 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 8168 } 8169 8170 @Override 8171 public void findViewsWithText(ArrayList<View> outViews, CharSequence searched, int flags) { 8172 super.findViewsWithText(outViews, searched, flags); 8173 if (!outViews.contains(this) && (flags & FIND_VIEWS_WITH_TEXT) != 0 8174 && !TextUtils.isEmpty(searched) && !TextUtils.isEmpty(mText)) { 8175 String searchedLowerCase = searched.toString().toLowerCase(); 8176 String textLowerCase = mText.toString().toLowerCase(); 8177 if (textLowerCase.contains(searchedLowerCase)) { 8178 outViews.add(this); 8179 } 8180 } 8181 } 8182 8183 public enum BufferType { 8184 NORMAL, SPANNABLE, EDITABLE, 8185 } 8186 8187 /** 8188 * Returns the TextView_textColor attribute from the TypedArray, if set, or 8189 * the TextAppearance_textColor from the TextView_textAppearance attribute, 8190 * if TextView_textColor was not set directly. 8191 * 8192 * @removed 8193 */ 8194 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 8195 if (attrs == null) { 8196 // Preserve behavior prior to removal of this API. 8197 throw new NullPointerException(); 8198 } 8199 8200 // It's not safe to use this method from apps. The parameter 'attrs' 8201 // must have been obtained using the TextView filter array which is not 8202 // available to the SDK. As such, we grab a default TypedArray with the 8203 // right filter instead here. 8204 final TypedArray a = context.obtainStyledAttributes(R.styleable.TextView); 8205 ColorStateList colors = a.getColorStateList(R.styleable.TextView_textColor); 8206 if (colors == null) { 8207 final int ap = a.getResourceId(R.styleable.TextView_textAppearance, 0); 8208 if (ap != 0) { 8209 final TypedArray appearance = context.obtainStyledAttributes( 8210 ap, R.styleable.TextAppearance); 8211 colors = appearance.getColorStateList(R.styleable.TextAppearance_textColor); 8212 appearance.recycle(); 8213 } 8214 } 8215 a.recycle(); 8216 8217 return colors; 8218 } 8219 8220 /** 8221 * Returns the default color from the TextView_textColor attribute from the 8222 * AttributeSet, if set, or the default color from the 8223 * TextAppearance_textColor from the TextView_textAppearance attribute, if 8224 * TextView_textColor was not set directly. 8225 * 8226 * @removed 8227 */ 8228 public static int getTextColor(Context context, TypedArray attrs, int def) { 8229 final ColorStateList colors = getTextColors(context, attrs); 8230 if (colors == null) { 8231 return def; 8232 } else { 8233 return colors.getDefaultColor(); 8234 } 8235 } 8236 8237 @Override 8238 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 8239 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 8240 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 8241 switch (keyCode) { 8242 case KeyEvent.KEYCODE_A: 8243 if (canSelectText()) { 8244 return onTextContextMenuItem(ID_SELECT_ALL); 8245 } 8246 break; 8247 case KeyEvent.KEYCODE_X: 8248 if (canCut()) { 8249 return onTextContextMenuItem(ID_CUT); 8250 } 8251 break; 8252 case KeyEvent.KEYCODE_C: 8253 if (canCopy()) { 8254 return onTextContextMenuItem(ID_COPY); 8255 } 8256 break; 8257 case KeyEvent.KEYCODE_V: 8258 if (canPaste()) { 8259 return onTextContextMenuItem(ID_PASTE); 8260 } 8261 break; 8262 } 8263 } 8264 return super.onKeyShortcut(keyCode, event); 8265 } 8266 8267 /** 8268 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 8269 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 8270 * a selection controller (see {@link Editor#prepareCursorControllers()}), but this is not 8271 * sufficient. 8272 */ 8273 private boolean canSelectText() { 8274 return mText.length() != 0 && mEditor != null && mEditor.hasSelectionController(); 8275 } 8276 8277 /** 8278 * Test based on the <i>intrinsic</i> charateristics of the TextView. 8279 * The text must be spannable and the movement method must allow for arbitary selection. 8280 * 8281 * See also {@link #canSelectText()}. 8282 */ 8283 boolean textCanBeSelected() { 8284 // prepareCursorController() relies on this method. 8285 // If you change this condition, make sure prepareCursorController is called anywhere 8286 // the value of this condition might be changed. 8287 if (mMovement == null || !mMovement.canSelectArbitrarily()) return false; 8288 return isTextEditable() || 8289 (isTextSelectable() && mText instanceof Spannable && isEnabled()); 8290 } 8291 8292 private Locale getTextServicesLocale(boolean allowNullLocale) { 8293 // Start fetching the text services locale asynchronously. 8294 updateTextServicesLocaleAsync(); 8295 // If !allowNullLocale and there is no cached text services locale, just return the default 8296 // locale. 8297 return (mCurrentSpellCheckerLocaleCache == null && !allowNullLocale) ? Locale.getDefault() 8298 : mCurrentSpellCheckerLocaleCache; 8299 } 8300 8301 /** 8302 * This is a temporary method. Future versions may support multi-locale text. 8303 * Caveat: This method may not return the latest text services locale, but this should be 8304 * acceptable and it's more important to make this method asynchronous. 8305 * 8306 * @return The locale that should be used for a word iterator 8307 * in this TextView, based on the current spell checker settings, 8308 * the current IME's locale, or the system default locale. 8309 * Please note that a word iterator in this TextView is different from another word iterator 8310 * used by SpellChecker.java of TextView. This method should be used for the former. 8311 * @hide 8312 */ 8313 // TODO: Support multi-locale 8314 // TODO: Update the text services locale immediately after the keyboard locale is switched 8315 // by catching intent of keyboard switch event 8316 public Locale getTextServicesLocale() { 8317 return getTextServicesLocale(false /* allowNullLocale */); 8318 } 8319 8320 /** 8321 * This is a temporary method. Future versions may support multi-locale text. 8322 * Caveat: This method may not return the latest spell checker locale, but this should be 8323 * acceptable and it's more important to make this method asynchronous. 8324 * 8325 * @return The locale that should be used for a spell checker in this TextView, 8326 * based on the current spell checker settings, the current IME's locale, or the system default 8327 * locale. 8328 * @hide 8329 */ 8330 public Locale getSpellCheckerLocale() { 8331 return getTextServicesLocale(true /* allowNullLocale */); 8332 } 8333 8334 private void updateTextServicesLocaleAsync() { 8335 // AsyncTask.execute() uses a serial executor which means we don't have 8336 // to lock around updateTextServicesLocaleLocked() to prevent it from 8337 // being executed n times in parallel. 8338 AsyncTask.execute(new Runnable() { 8339 @Override 8340 public void run() { 8341 updateTextServicesLocaleLocked(); 8342 } 8343 }); 8344 } 8345 8346 private void updateTextServicesLocaleLocked() { 8347 final TextServicesManager textServicesManager = (TextServicesManager) 8348 mContext.getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE); 8349 final SpellCheckerSubtype subtype = textServicesManager.getCurrentSpellCheckerSubtype(true); 8350 final Locale locale; 8351 if (subtype != null) { 8352 locale = SpellCheckerSubtype.constructLocaleFromString(subtype.getLocale()); 8353 } else { 8354 locale = null; 8355 } 8356 mCurrentSpellCheckerLocaleCache = locale; 8357 } 8358 8359 void onLocaleChanged() { 8360 // Will be re-created on demand in getWordIterator with the proper new locale 8361 mEditor.mWordIterator = null; 8362 } 8363 8364 /** 8365 * This method is used by the ArrowKeyMovementMethod to jump from one word to the other. 8366 * Made available to achieve a consistent behavior. 8367 * @hide 8368 */ 8369 public WordIterator getWordIterator() { 8370 if (mEditor != null) { 8371 return mEditor.getWordIterator(); 8372 } else { 8373 return null; 8374 } 8375 } 8376 8377 @Override 8378 public void onPopulateAccessibilityEvent(AccessibilityEvent event) { 8379 super.onPopulateAccessibilityEvent(event); 8380 8381 final boolean isPassword = hasPasswordTransformationMethod(); 8382 if (!isPassword || shouldSpeakPasswordsForAccessibility()) { 8383 final CharSequence text = getTextForAccessibility(); 8384 if (!TextUtils.isEmpty(text)) { 8385 event.getText().add(text); 8386 } 8387 } 8388 } 8389 8390 /** 8391 * @return true if the user has explicitly allowed accessibility services 8392 * to speak passwords. 8393 */ 8394 private boolean shouldSpeakPasswordsForAccessibility() { 8395 return (Settings.Secure.getIntForUser(mContext.getContentResolver(), 8396 Settings.Secure.ACCESSIBILITY_SPEAK_PASSWORD, 0, 8397 UserHandle.USER_CURRENT_OR_SELF) == 1); 8398 } 8399 8400 @Override 8401 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 8402 super.onInitializeAccessibilityEvent(event); 8403 8404 event.setClassName(TextView.class.getName()); 8405 final boolean isPassword = hasPasswordTransformationMethod(); 8406 event.setPassword(isPassword); 8407 8408 if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED) { 8409 event.setFromIndex(Selection.getSelectionStart(mText)); 8410 event.setToIndex(Selection.getSelectionEnd(mText)); 8411 event.setItemCount(mText.length()); 8412 } 8413 } 8414 8415 @Override 8416 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 8417 super.onInitializeAccessibilityNodeInfo(info); 8418 8419 info.setClassName(TextView.class.getName()); 8420 final boolean isPassword = hasPasswordTransformationMethod(); 8421 info.setPassword(isPassword); 8422 8423 if (!isPassword || shouldSpeakPasswordsForAccessibility()) { 8424 info.setText(getTextForAccessibility()); 8425 } 8426 8427 if (mBufferType == BufferType.EDITABLE) { 8428 info.setEditable(true); 8429 } 8430 8431 if (mEditor != null) { 8432 info.setInputType(mEditor.mInputType); 8433 8434 if (mEditor.mError != null) { 8435 info.setContentInvalid(true); 8436 info.setError(mEditor.mError); 8437 } 8438 } 8439 8440 if (!TextUtils.isEmpty(mText)) { 8441 info.addAction(AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY); 8442 info.addAction(AccessibilityNodeInfo.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY); 8443 info.setMovementGranularities(AccessibilityNodeInfo.MOVEMENT_GRANULARITY_CHARACTER 8444 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_WORD 8445 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_LINE 8446 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PARAGRAPH 8447 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PAGE); 8448 } 8449 8450 if (isFocused()) { 8451 if (canSelectText()) { 8452 info.addAction(AccessibilityNodeInfo.ACTION_SET_SELECTION); 8453 } 8454 if (canCopy()) { 8455 info.addAction(AccessibilityNodeInfo.ACTION_COPY); 8456 } 8457 if (canPaste()) { 8458 info.addAction(AccessibilityNodeInfo.ACTION_PASTE); 8459 } 8460 if (canCut()) { 8461 info.addAction(AccessibilityNodeInfo.ACTION_CUT); 8462 } 8463 } 8464 8465 // Check for known input filter types. 8466 final int numFilters = mFilters.length; 8467 for (int i = 0; i < numFilters; i++) { 8468 final InputFilter filter = mFilters[i]; 8469 if (filter instanceof InputFilter.LengthFilter) { 8470 info.setMaxTextLength(((InputFilter.LengthFilter) filter).getMax()); 8471 } 8472 } 8473 8474 if (!isSingleLine()) { 8475 info.setMultiLine(true); 8476 } 8477 } 8478 8479 /** 8480 * Performs an accessibility action after it has been offered to the 8481 * delegate. 8482 * 8483 * @hide 8484 */ 8485 @Override 8486 public boolean performAccessibilityActionInternal(int action, Bundle arguments) { 8487 switch (action) { 8488 case AccessibilityNodeInfo.ACTION_CLICK: { 8489 boolean handled = false; 8490 8491 // Simulate View.onTouchEvent for an ACTION_UP event. 8492 if (isClickable() || isLongClickable()) { 8493 if (isFocusable() && !isFocused()) { 8494 requestFocus(); 8495 } 8496 8497 performClick(); 8498 handled = true; 8499 } 8500 8501 // Simulate TextView.onTouchEvent for an ACTION_UP event. 8502 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 8503 && mText instanceof Spannable && mLayout != null 8504 && (isTextEditable() || isTextSelectable()) && isFocused()) { 8505 // Show the IME, except when selecting in read-only text. 8506 final InputMethodManager imm = InputMethodManager.peekInstance(); 8507 viewClicked(imm); 8508 if (!isTextSelectable() && mEditor.mShowSoftInputOnFocus && imm != null) { 8509 handled |= imm.showSoftInput(this, 0); 8510 } 8511 } 8512 8513 return handled; 8514 } 8515 case AccessibilityNodeInfo.ACTION_COPY: { 8516 if (isFocused() && canCopy()) { 8517 if (onTextContextMenuItem(ID_COPY)) { 8518 return true; 8519 } 8520 } 8521 } return false; 8522 case AccessibilityNodeInfo.ACTION_PASTE: { 8523 if (isFocused() && canPaste()) { 8524 if (onTextContextMenuItem(ID_PASTE)) { 8525 return true; 8526 } 8527 } 8528 } return false; 8529 case AccessibilityNodeInfo.ACTION_CUT: { 8530 if (isFocused() && canCut()) { 8531 if (onTextContextMenuItem(ID_CUT)) { 8532 return true; 8533 } 8534 } 8535 } return false; 8536 case AccessibilityNodeInfo.ACTION_SET_SELECTION: { 8537 if (isFocused() && canSelectText()) { 8538 ensureIterableTextForAccessibilitySelectable(); 8539 CharSequence text = getIterableTextForAccessibility(); 8540 if (text == null) { 8541 return false; 8542 } 8543 final int start = (arguments != null) ? arguments.getInt( 8544 AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_START_INT, -1) : -1; 8545 final int end = (arguments != null) ? arguments.getInt( 8546 AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_END_INT, -1) : -1; 8547 if ((getSelectionStart() != start || getSelectionEnd() != end)) { 8548 // No arguments clears the selection. 8549 if (start == end && end == -1) { 8550 Selection.removeSelection((Spannable) text); 8551 return true; 8552 } 8553 if (start >= 0 && start <= end && end <= text.length()) { 8554 Selection.setSelection((Spannable) text, start, end); 8555 // Make sure selection mode is engaged. 8556 if (mEditor != null) { 8557 mEditor.startSelectionActionMode(); 8558 } 8559 return true; 8560 } 8561 } 8562 } 8563 } return false; 8564 case AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY: 8565 case AccessibilityNodeInfo.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY: { 8566 ensureIterableTextForAccessibilitySelectable(); 8567 return super.performAccessibilityActionInternal(action, arguments); 8568 } 8569 default: { 8570 return super.performAccessibilityActionInternal(action, arguments); 8571 } 8572 } 8573 } 8574 8575 @Override 8576 public void sendAccessibilityEvent(int eventType) { 8577 // Do not send scroll events since first they are not interesting for 8578 // accessibility and second such events a generated too frequently. 8579 // For details see the implementation of bringTextIntoView(). 8580 if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 8581 return; 8582 } 8583 super.sendAccessibilityEvent(eventType); 8584 } 8585 8586 /** 8587 * Gets the text reported for accessibility purposes. 8588 * 8589 * @return The accessibility text. 8590 * 8591 * @hide 8592 */ 8593 public CharSequence getTextForAccessibility() { 8594 CharSequence text = getText(); 8595 if (TextUtils.isEmpty(text)) { 8596 text = getHint(); 8597 } 8598 return text; 8599 } 8600 8601 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 8602 int fromIndex, int removedCount, int addedCount) { 8603 AccessibilityEvent event = 8604 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 8605 event.setFromIndex(fromIndex); 8606 event.setRemovedCount(removedCount); 8607 event.setAddedCount(addedCount); 8608 event.setBeforeText(beforeText); 8609 sendAccessibilityEventUnchecked(event); 8610 } 8611 8612 /** 8613 * Returns whether this text view is a current input method target. The 8614 * default implementation just checks with {@link InputMethodManager}. 8615 */ 8616 public boolean isInputMethodTarget() { 8617 InputMethodManager imm = InputMethodManager.peekInstance(); 8618 return imm != null && imm.isActive(this); 8619 } 8620 8621 static final int ID_SELECT_ALL = android.R.id.selectAll; 8622 static final int ID_CUT = android.R.id.cut; 8623 static final int ID_COPY = android.R.id.copy; 8624 static final int ID_PASTE = android.R.id.paste; 8625 8626 /** 8627 * Called when a context menu option for the text view is selected. Currently 8628 * this will be one of {@link android.R.id#selectAll}, {@link android.R.id#cut}, 8629 * {@link android.R.id#copy} or {@link android.R.id#paste}. 8630 * 8631 * @return true if the context menu item action was performed. 8632 */ 8633 public boolean onTextContextMenuItem(int id) { 8634 int min = 0; 8635 int max = mText.length(); 8636 8637 if (isFocused()) { 8638 final int selStart = getSelectionStart(); 8639 final int selEnd = getSelectionEnd(); 8640 8641 min = Math.max(0, Math.min(selStart, selEnd)); 8642 max = Math.max(0, Math.max(selStart, selEnd)); 8643 } 8644 8645 switch (id) { 8646 case ID_SELECT_ALL: 8647 // This does not enter text selection mode. Text is highlighted, so that it can be 8648 // bulk edited, like selectAllOnFocus does. Returns true even if text is empty. 8649 selectAllText(); 8650 return true; 8651 8652 case ID_PASTE: 8653 paste(min, max); 8654 return true; 8655 8656 case ID_CUT: 8657 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 8658 deleteText_internal(min, max); 8659 stopSelectionActionMode(); 8660 return true; 8661 8662 case ID_COPY: 8663 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 8664 stopSelectionActionMode(); 8665 return true; 8666 } 8667 return false; 8668 } 8669 8670 CharSequence getTransformedText(int start, int end) { 8671 return removeSuggestionSpans(mTransformed.subSequence(start, end)); 8672 } 8673 8674 @Override 8675 public boolean performLongClick() { 8676 boolean handled = false; 8677 8678 if (super.performLongClick()) { 8679 handled = true; 8680 } 8681 8682 if (mEditor != null) { 8683 handled |= mEditor.performLongClick(handled); 8684 } 8685 8686 if (handled) { 8687 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 8688 if (mEditor != null) mEditor.mDiscardNextActionUp = true; 8689 } 8690 8691 return handled; 8692 } 8693 8694 @Override 8695 protected void onScrollChanged(int horiz, int vert, int oldHoriz, int oldVert) { 8696 super.onScrollChanged(horiz, vert, oldHoriz, oldVert); 8697 if (mEditor != null) { 8698 mEditor.onScrollChanged(); 8699 } 8700 } 8701 8702 /** 8703 * Return whether or not suggestions are enabled on this TextView. The suggestions are generated 8704 * by the IME or by the spell checker as the user types. This is done by adding 8705 * {@link SuggestionSpan}s to the text. 8706 * 8707 * When suggestions are enabled (default), this list of suggestions will be displayed when the 8708 * user asks for them on these parts of the text. This value depends on the inputType of this 8709 * TextView. 8710 * 8711 * The class of the input type must be {@link InputType#TYPE_CLASS_TEXT}. 8712 * 8713 * In addition, the type variation must be one of 8714 * {@link InputType#TYPE_TEXT_VARIATION_NORMAL}, 8715 * {@link InputType#TYPE_TEXT_VARIATION_EMAIL_SUBJECT}, 8716 * {@link InputType#TYPE_TEXT_VARIATION_LONG_MESSAGE}, 8717 * {@link InputType#TYPE_TEXT_VARIATION_SHORT_MESSAGE} or 8718 * {@link InputType#TYPE_TEXT_VARIATION_WEB_EDIT_TEXT}. 8719 * 8720 * And finally, the {@link InputType#TYPE_TEXT_FLAG_NO_SUGGESTIONS} flag must <i>not</i> be set. 8721 * 8722 * @return true if the suggestions popup window is enabled, based on the inputType. 8723 */ 8724 public boolean isSuggestionsEnabled() { 8725 if (mEditor == null) return false; 8726 if ((mEditor.mInputType & InputType.TYPE_MASK_CLASS) != InputType.TYPE_CLASS_TEXT) { 8727 return false; 8728 } 8729 if ((mEditor.mInputType & InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS) > 0) return false; 8730 8731 final int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION; 8732 return (variation == EditorInfo.TYPE_TEXT_VARIATION_NORMAL || 8733 variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT || 8734 variation == EditorInfo.TYPE_TEXT_VARIATION_LONG_MESSAGE || 8735 variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE || 8736 variation == EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT); 8737 } 8738 8739 /** 8740 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 8741 * selection is initiated in this View. 8742 * 8743 * The standard implementation populates the menu with a subset of Select All, Cut, Copy and 8744 * Paste actions, depending on what this View supports. 8745 * 8746 * A custom implementation can add new entries in the default menu in its 8747 * {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The 8748 * default actions can also be removed from the menu using {@link Menu#removeItem(int)} and 8749 * passing {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy} 8750 * or {@link android.R.id#paste} ids as parameters. 8751 * 8752 * Returning false from 8753 * {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will prevent 8754 * the action mode from being started. 8755 * 8756 * Action click events should be handled by the custom implementation of 8757 * {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}. 8758 * 8759 * Note that text selection mode is not started when a TextView receives focus and the 8760 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 8761 * that case, to allow for quick replacement. 8762 */ 8763 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 8764 createEditorIfNeeded(); 8765 mEditor.mCustomSelectionActionModeCallback = actionModeCallback; 8766 } 8767 8768 /** 8769 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 8770 * 8771 * @return The current custom selection callback. 8772 */ 8773 public ActionMode.Callback getCustomSelectionActionModeCallback() { 8774 return mEditor == null ? null : mEditor.mCustomSelectionActionModeCallback; 8775 } 8776 8777 /** 8778 * @hide 8779 */ 8780 protected void stopSelectionActionMode() { 8781 mEditor.stopSelectionActionMode(); 8782 } 8783 8784 boolean canCut() { 8785 if (hasPasswordTransformationMethod()) { 8786 return false; 8787 } 8788 8789 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mEditor != null && 8790 mEditor.mKeyListener != null) { 8791 return true; 8792 } 8793 8794 return false; 8795 } 8796 8797 boolean canCopy() { 8798 if (hasPasswordTransformationMethod()) { 8799 return false; 8800 } 8801 8802 if (mText.length() > 0 && hasSelection() && mEditor != null) { 8803 return true; 8804 } 8805 8806 return false; 8807 } 8808 8809 boolean canPaste() { 8810 return (mText instanceof Editable && 8811 mEditor != null && mEditor.mKeyListener != null && 8812 getSelectionStart() >= 0 && 8813 getSelectionEnd() >= 0 && 8814 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 8815 hasPrimaryClip()); 8816 } 8817 8818 boolean selectAllText() { 8819 final int length = mText.length(); 8820 Selection.setSelection((Spannable) mText, 0, length); 8821 return length > 0; 8822 } 8823 8824 /** 8825 * Paste clipboard content between min and max positions. 8826 */ 8827 private void paste(int min, int max) { 8828 ClipboardManager clipboard = 8829 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 8830 ClipData clip = clipboard.getPrimaryClip(); 8831 if (clip != null) { 8832 boolean didFirst = false; 8833 for (int i=0; i<clip.getItemCount(); i++) { 8834 CharSequence paste = clip.getItemAt(i).coerceToStyledText(getContext()); 8835 if (paste != null) { 8836 if (!didFirst) { 8837 Selection.setSelection((Spannable) mText, max); 8838 ((Editable) mText).replace(min, max, paste); 8839 didFirst = true; 8840 } else { 8841 ((Editable) mText).insert(getSelectionEnd(), "\n"); 8842 ((Editable) mText).insert(getSelectionEnd(), paste); 8843 } 8844 } 8845 } 8846 stopSelectionActionMode(); 8847 LAST_CUT_OR_COPY_TIME = 0; 8848 } 8849 } 8850 8851 private void setPrimaryClip(ClipData clip) { 8852 ClipboardManager clipboard = (ClipboardManager) getContext(). 8853 getSystemService(Context.CLIPBOARD_SERVICE); 8854 clipboard.setPrimaryClip(clip); 8855 LAST_CUT_OR_COPY_TIME = SystemClock.uptimeMillis(); 8856 } 8857 8858 /** 8859 * Get the character offset closest to the specified absolute position. A typical use case is to 8860 * pass the result of {@link MotionEvent#getX()} and {@link MotionEvent#getY()} to this method. 8861 * 8862 * @param x The horizontal absolute position of a point on screen 8863 * @param y The vertical absolute position of a point on screen 8864 * @return the character offset for the character whose position is closest to the specified 8865 * position. Returns -1 if there is no layout. 8866 */ 8867 public int getOffsetForPosition(float x, float y) { 8868 if (getLayout() == null) return -1; 8869 final int line = getLineAtCoordinate(y); 8870 final int offset = getOffsetAtCoordinate(line, x); 8871 return offset; 8872 } 8873 8874 float convertToLocalHorizontalCoordinate(float x) { 8875 x -= getTotalPaddingLeft(); 8876 // Clamp the position to inside of the view. 8877 x = Math.max(0.0f, x); 8878 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 8879 x += getScrollX(); 8880 return x; 8881 } 8882 8883 int getLineAtCoordinate(float y) { 8884 y -= getTotalPaddingTop(); 8885 // Clamp the position to inside of the view. 8886 y = Math.max(0.0f, y); 8887 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 8888 y += getScrollY(); 8889 return getLayout().getLineForVertical((int) y); 8890 } 8891 8892 private int getOffsetAtCoordinate(int line, float x) { 8893 x = convertToLocalHorizontalCoordinate(x); 8894 return getLayout().getOffsetForHorizontal(line, x); 8895 } 8896 8897 @Override 8898 public boolean onDragEvent(DragEvent event) { 8899 switch (event.getAction()) { 8900 case DragEvent.ACTION_DRAG_STARTED: 8901 return mEditor != null && mEditor.hasInsertionController(); 8902 8903 case DragEvent.ACTION_DRAG_ENTERED: 8904 TextView.this.requestFocus(); 8905 return true; 8906 8907 case DragEvent.ACTION_DRAG_LOCATION: 8908 final int offset = getOffsetForPosition(event.getX(), event.getY()); 8909 Selection.setSelection((Spannable)mText, offset); 8910 return true; 8911 8912 case DragEvent.ACTION_DROP: 8913 if (mEditor != null) mEditor.onDrop(event); 8914 return true; 8915 8916 case DragEvent.ACTION_DRAG_ENDED: 8917 case DragEvent.ACTION_DRAG_EXITED: 8918 default: 8919 return true; 8920 } 8921 } 8922 8923 boolean isInBatchEditMode() { 8924 if (mEditor == null) return false; 8925 final Editor.InputMethodState ims = mEditor.mInputMethodState; 8926 if (ims != null) { 8927 return ims.mBatchEditNesting > 0; 8928 } 8929 return mEditor.mInBatchEditControllers; 8930 } 8931 8932 @Override 8933 public void onRtlPropertiesChanged(int layoutDirection) { 8934 super.onRtlPropertiesChanged(layoutDirection); 8935 8936 mTextDir = getTextDirectionHeuristic(); 8937 8938 if (mLayout != null) { 8939 checkForRelayout(); 8940 } 8941 } 8942 8943 TextDirectionHeuristic getTextDirectionHeuristic() { 8944 if (hasPasswordTransformationMethod()) { 8945 // passwords fields should be LTR 8946 return TextDirectionHeuristics.LTR; 8947 } 8948 8949 // Always need to resolve layout direction first 8950 final boolean defaultIsRtl = (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 8951 8952 // Now, we can select the heuristic 8953 switch (getTextDirection()) { 8954 default: 8955 case TEXT_DIRECTION_FIRST_STRONG: 8956 return (defaultIsRtl ? TextDirectionHeuristics.FIRSTSTRONG_RTL : 8957 TextDirectionHeuristics.FIRSTSTRONG_LTR); 8958 case TEXT_DIRECTION_ANY_RTL: 8959 return TextDirectionHeuristics.ANYRTL_LTR; 8960 case TEXT_DIRECTION_LTR: 8961 return TextDirectionHeuristics.LTR; 8962 case TEXT_DIRECTION_RTL: 8963 return TextDirectionHeuristics.RTL; 8964 case TEXT_DIRECTION_LOCALE: 8965 return TextDirectionHeuristics.LOCALE; 8966 } 8967 } 8968 8969 /** 8970 * @hide 8971 */ 8972 @Override 8973 public void onResolveDrawables(int layoutDirection) { 8974 // No need to resolve twice 8975 if (mLastLayoutDirection == layoutDirection) { 8976 return; 8977 } 8978 mLastLayoutDirection = layoutDirection; 8979 8980 // Resolve drawables 8981 if (mDrawables != null) { 8982 mDrawables.resolveWithLayoutDirection(layoutDirection); 8983 } 8984 } 8985 8986 /** 8987 * @hide 8988 */ 8989 protected void resetResolvedDrawables() { 8990 super.resetResolvedDrawables(); 8991 mLastLayoutDirection = -1; 8992 } 8993 8994 /** 8995 * @hide 8996 */ 8997 protected void viewClicked(InputMethodManager imm) { 8998 if (imm != null) { 8999 imm.viewClicked(this); 9000 } 9001 } 9002 9003 /** 9004 * Deletes the range of text [start, end[. 9005 * @hide 9006 */ 9007 protected void deleteText_internal(int start, int end) { 9008 ((Editable) mText).delete(start, end); 9009 } 9010 9011 /** 9012 * Replaces the range of text [start, end[ by replacement text 9013 * @hide 9014 */ 9015 protected void replaceText_internal(int start, int end, CharSequence text) { 9016 ((Editable) mText).replace(start, end, text); 9017 } 9018 9019 /** 9020 * Sets a span on the specified range of text 9021 * @hide 9022 */ 9023 protected void setSpan_internal(Object span, int start, int end, int flags) { 9024 ((Editable) mText).setSpan(span, start, end, flags); 9025 } 9026 9027 /** 9028 * Moves the cursor to the specified offset position in text 9029 * @hide 9030 */ 9031 protected void setCursorPosition_internal(int start, int end) { 9032 Selection.setSelection(((Editable) mText), start, end); 9033 } 9034 9035 /** 9036 * An Editor should be created as soon as any of the editable-specific fields (grouped 9037 * inside the Editor object) is assigned to a non-default value. 9038 * This method will create the Editor if needed. 9039 * 9040 * A standard TextView (as well as buttons, checkboxes...) should not qualify and hence will 9041 * have a null Editor, unlike an EditText. Inconsistent in-between states will have an 9042 * Editor for backward compatibility, as soon as one of these fields is assigned. 9043 * 9044 * Also note that for performance reasons, the mEditor is created when needed, but not 9045 * reset when no more edit-specific fields are needed. 9046 */ 9047 private void createEditorIfNeeded() { 9048 if (mEditor == null) { 9049 mEditor = new Editor(this); 9050 } 9051 } 9052 9053 /** 9054 * @hide 9055 */ 9056 @Override 9057 public CharSequence getIterableTextForAccessibility() { 9058 return mText; 9059 } 9060 9061 private void ensureIterableTextForAccessibilitySelectable() { 9062 if (!(mText instanceof Spannable)) { 9063 setText(mText, BufferType.SPANNABLE); 9064 } 9065 } 9066 9067 /** 9068 * @hide 9069 */ 9070 @Override 9071 public TextSegmentIterator getIteratorForGranularity(int granularity) { 9072 switch (granularity) { 9073 case AccessibilityNodeInfo.MOVEMENT_GRANULARITY_LINE: { 9074 Spannable text = (Spannable) getIterableTextForAccessibility(); 9075 if (!TextUtils.isEmpty(text) && getLayout() != null) { 9076 AccessibilityIterators.LineTextSegmentIterator iterator = 9077 AccessibilityIterators.LineTextSegmentIterator.getInstance(); 9078 iterator.initialize(text, getLayout()); 9079 return iterator; 9080 } 9081 } break; 9082 case AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PAGE: { 9083 Spannable text = (Spannable) getIterableTextForAccessibility(); 9084 if (!TextUtils.isEmpty(text) && getLayout() != null) { 9085 AccessibilityIterators.PageTextSegmentIterator iterator = 9086 AccessibilityIterators.PageTextSegmentIterator.getInstance(); 9087 iterator.initialize(this); 9088 return iterator; 9089 } 9090 } break; 9091 } 9092 return super.getIteratorForGranularity(granularity); 9093 } 9094 9095 /** 9096 * @hide 9097 */ 9098 @Override 9099 public int getAccessibilitySelectionStart() { 9100 return getSelectionStart(); 9101 } 9102 9103 /** 9104 * @hide 9105 */ 9106 public boolean isAccessibilitySelectionExtendable() { 9107 return true; 9108 } 9109 9110 /** 9111 * @hide 9112 */ 9113 @Override 9114 public int getAccessibilitySelectionEnd() { 9115 return getSelectionEnd(); 9116 } 9117 9118 /** 9119 * @hide 9120 */ 9121 @Override 9122 public void setAccessibilitySelection(int start, int end) { 9123 if (getAccessibilitySelectionStart() == start 9124 && getAccessibilitySelectionEnd() == end) { 9125 return; 9126 } 9127 // Hide all selection controllers used for adjusting selection 9128 // since we are doing so explicitlty by other means and these 9129 // controllers interact with how selection behaves. 9130 if (mEditor != null) { 9131 mEditor.hideControllers(); 9132 } 9133 CharSequence text = getIterableTextForAccessibility(); 9134 if (Math.min(start, end) >= 0 && Math.max(start, end) <= text.length()) { 9135 Selection.setSelection((Spannable) text, start, end); 9136 } else { 9137 Selection.removeSelection((Spannable) text); 9138 } 9139 } 9140 9141 /** 9142 * User interface state that is stored by TextView for implementing 9143 * {@link View#onSaveInstanceState}. 9144 */ 9145 public static class SavedState extends BaseSavedState { 9146 int selStart; 9147 int selEnd; 9148 CharSequence text; 9149 boolean frozenWithFocus; 9150 CharSequence error; 9151 9152 SavedState(Parcelable superState) { 9153 super(superState); 9154 } 9155 9156 @Override 9157 public void writeToParcel(Parcel out, int flags) { 9158 super.writeToParcel(out, flags); 9159 out.writeInt(selStart); 9160 out.writeInt(selEnd); 9161 out.writeInt(frozenWithFocus ? 1 : 0); 9162 TextUtils.writeToParcel(text, out, flags); 9163 9164 if (error == null) { 9165 out.writeInt(0); 9166 } else { 9167 out.writeInt(1); 9168 TextUtils.writeToParcel(error, out, flags); 9169 } 9170 } 9171 9172 @Override 9173 public String toString() { 9174 String str = "TextView.SavedState{" 9175 + Integer.toHexString(System.identityHashCode(this)) 9176 + " start=" + selStart + " end=" + selEnd; 9177 if (text != null) { 9178 str += " text=" + text; 9179 } 9180 return str + "}"; 9181 } 9182 9183 @SuppressWarnings("hiding") 9184 public static final Parcelable.Creator<SavedState> CREATOR 9185 = new Parcelable.Creator<SavedState>() { 9186 public SavedState createFromParcel(Parcel in) { 9187 return new SavedState(in); 9188 } 9189 9190 public SavedState[] newArray(int size) { 9191 return new SavedState[size]; 9192 } 9193 }; 9194 9195 private SavedState(Parcel in) { 9196 super(in); 9197 selStart = in.readInt(); 9198 selEnd = in.readInt(); 9199 frozenWithFocus = (in.readInt() != 0); 9200 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 9201 9202 if (in.readInt() != 0) { 9203 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 9204 } 9205 } 9206 } 9207 9208 private static class CharWrapper implements CharSequence, GetChars, GraphicsOperations { 9209 private char[] mChars; 9210 private int mStart, mLength; 9211 9212 public CharWrapper(char[] chars, int start, int len) { 9213 mChars = chars; 9214 mStart = start; 9215 mLength = len; 9216 } 9217 9218 /* package */ void set(char[] chars, int start, int len) { 9219 mChars = chars; 9220 mStart = start; 9221 mLength = len; 9222 } 9223 9224 public int length() { 9225 return mLength; 9226 } 9227 9228 public char charAt(int off) { 9229 return mChars[off + mStart]; 9230 } 9231 9232 @Override 9233 public String toString() { 9234 return new String(mChars, mStart, mLength); 9235 } 9236 9237 public CharSequence subSequence(int start, int end) { 9238 if (start < 0 || end < 0 || start > mLength || end > mLength) { 9239 throw new IndexOutOfBoundsException(start + ", " + end); 9240 } 9241 9242 return new String(mChars, start + mStart, end - start); 9243 } 9244 9245 public void getChars(int start, int end, char[] buf, int off) { 9246 if (start < 0 || end < 0 || start > mLength || end > mLength) { 9247 throw new IndexOutOfBoundsException(start + ", " + end); 9248 } 9249 9250 System.arraycopy(mChars, start + mStart, buf, off, end - start); 9251 } 9252 9253 public void drawText(Canvas c, int start, int end, 9254 float x, float y, Paint p) { 9255 c.drawText(mChars, start + mStart, end - start, x, y, p); 9256 } 9257 9258 public void drawTextRun(Canvas c, int start, int end, 9259 int contextStart, int contextEnd, float x, float y, boolean isRtl, Paint p) { 9260 int count = end - start; 9261 int contextCount = contextEnd - contextStart; 9262 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 9263 contextCount, x, y, isRtl, p); 9264 } 9265 9266 public float measureText(int start, int end, Paint p) { 9267 return p.measureText(mChars, start + mStart, end - start); 9268 } 9269 9270 public int getTextWidths(int start, int end, float[] widths, Paint p) { 9271 return p.getTextWidths(mChars, start + mStart, end - start, widths); 9272 } 9273 9274 public float getTextRunAdvances(int start, int end, int contextStart, 9275 int contextEnd, boolean isRtl, float[] advances, int advancesIndex, 9276 Paint p) { 9277 int count = end - start; 9278 int contextCount = contextEnd - contextStart; 9279 return p.getTextRunAdvances(mChars, start + mStart, count, 9280 contextStart + mStart, contextCount, isRtl, advances, 9281 advancesIndex); 9282 } 9283 9284 public int getTextRunCursor(int contextStart, int contextEnd, int dir, 9285 int offset, int cursorOpt, Paint p) { 9286 int contextCount = contextEnd - contextStart; 9287 return p.getTextRunCursor(mChars, contextStart + mStart, 9288 contextCount, dir, offset + mStart, cursorOpt); 9289 } 9290 } 9291 9292 private static final class Marquee { 9293 // TODO: Add an option to configure this 9294 private static final float MARQUEE_DELTA_MAX = 0.07f; 9295 private static final int MARQUEE_DELAY = 1200; 9296 private static final int MARQUEE_RESTART_DELAY = 1200; 9297 private static final int MARQUEE_DP_PER_SECOND = 30; 9298 9299 private static final byte MARQUEE_STOPPED = 0x0; 9300 private static final byte MARQUEE_STARTING = 0x1; 9301 private static final byte MARQUEE_RUNNING = 0x2; 9302 9303 private final WeakReference<TextView> mView; 9304 private final Choreographer mChoreographer; 9305 9306 private byte mStatus = MARQUEE_STOPPED; 9307 private final float mPixelsPerSecond; 9308 private float mMaxScroll; 9309 private float mMaxFadeScroll; 9310 private float mGhostStart; 9311 private float mGhostOffset; 9312 private float mFadeStop; 9313 private int mRepeatLimit; 9314 9315 private float mScroll; 9316 private long mLastAnimationMs; 9317 9318 Marquee(TextView v) { 9319 final float density = v.getContext().getResources().getDisplayMetrics().density; 9320 mPixelsPerSecond = MARQUEE_DP_PER_SECOND * density; 9321 mView = new WeakReference<TextView>(v); 9322 mChoreographer = Choreographer.getInstance(); 9323 } 9324 9325 private Choreographer.FrameCallback mTickCallback = new Choreographer.FrameCallback() { 9326 @Override 9327 public void doFrame(long frameTimeNanos) { 9328 tick(); 9329 } 9330 }; 9331 9332 private Choreographer.FrameCallback mStartCallback = new Choreographer.FrameCallback() { 9333 @Override 9334 public void doFrame(long frameTimeNanos) { 9335 mStatus = MARQUEE_RUNNING; 9336 mLastAnimationMs = mChoreographer.getFrameTime(); 9337 tick(); 9338 } 9339 }; 9340 9341 private Choreographer.FrameCallback mRestartCallback = new Choreographer.FrameCallback() { 9342 @Override 9343 public void doFrame(long frameTimeNanos) { 9344 if (mStatus == MARQUEE_RUNNING) { 9345 if (mRepeatLimit >= 0) { 9346 mRepeatLimit--; 9347 } 9348 start(mRepeatLimit); 9349 } 9350 } 9351 }; 9352 9353 void tick() { 9354 if (mStatus != MARQUEE_RUNNING) { 9355 return; 9356 } 9357 9358 mChoreographer.removeFrameCallback(mTickCallback); 9359 9360 final TextView textView = mView.get(); 9361 if (textView != null && (textView.isFocused() || textView.isSelected())) { 9362 long currentMs = mChoreographer.getFrameTime(); 9363 long deltaMs = currentMs - mLastAnimationMs; 9364 mLastAnimationMs = currentMs; 9365 float deltaPx = deltaMs / 1000f * mPixelsPerSecond; 9366 mScroll += deltaPx; 9367 if (mScroll > mMaxScroll) { 9368 mScroll = mMaxScroll; 9369 mChoreographer.postFrameCallbackDelayed(mRestartCallback, MARQUEE_DELAY); 9370 } else { 9371 mChoreographer.postFrameCallback(mTickCallback); 9372 } 9373 textView.invalidate(); 9374 } 9375 } 9376 9377 void stop() { 9378 mStatus = MARQUEE_STOPPED; 9379 mChoreographer.removeFrameCallback(mStartCallback); 9380 mChoreographer.removeFrameCallback(mRestartCallback); 9381 mChoreographer.removeFrameCallback(mTickCallback); 9382 resetScroll(); 9383 } 9384 9385 private void resetScroll() { 9386 mScroll = 0.0f; 9387 final TextView textView = mView.get(); 9388 if (textView != null) textView.invalidate(); 9389 } 9390 9391 void start(int repeatLimit) { 9392 if (repeatLimit == 0) { 9393 stop(); 9394 return; 9395 } 9396 mRepeatLimit = repeatLimit; 9397 final TextView textView = mView.get(); 9398 if (textView != null && textView.mLayout != null) { 9399 mStatus = MARQUEE_STARTING; 9400 mScroll = 0.0f; 9401 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 9402 textView.getCompoundPaddingRight(); 9403 final float lineWidth = textView.mLayout.getLineWidth(0); 9404 final float gap = textWidth / 3.0f; 9405 mGhostStart = lineWidth - textWidth + gap; 9406 mMaxScroll = mGhostStart + textWidth; 9407 mGhostOffset = lineWidth + gap; 9408 mFadeStop = lineWidth + textWidth / 6.0f; 9409 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 9410 9411 textView.invalidate(); 9412 mChoreographer.postFrameCallback(mStartCallback); 9413 } 9414 } 9415 9416 float getGhostOffset() { 9417 return mGhostOffset; 9418 } 9419 9420 float getScroll() { 9421 return mScroll; 9422 } 9423 9424 float getMaxFadeScroll() { 9425 return mMaxFadeScroll; 9426 } 9427 9428 boolean shouldDrawLeftFade() { 9429 return mScroll <= mFadeStop; 9430 } 9431 9432 boolean shouldDrawGhost() { 9433 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 9434 } 9435 9436 boolean isRunning() { 9437 return mStatus == MARQUEE_RUNNING; 9438 } 9439 9440 boolean isStopped() { 9441 return mStatus == MARQUEE_STOPPED; 9442 } 9443 } 9444 9445 private class ChangeWatcher implements TextWatcher, SpanWatcher { 9446 9447 private CharSequence mBeforeText; 9448 9449 public void beforeTextChanged(CharSequence buffer, int start, 9450 int before, int after) { 9451 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 9452 + " before=" + before + " after=" + after + ": " + buffer); 9453 9454 if (AccessibilityManager.getInstance(mContext).isEnabled() 9455 && ((!isPasswordInputType(getInputType()) && !hasPasswordTransformationMethod()) 9456 || shouldSpeakPasswordsForAccessibility())) { 9457 mBeforeText = buffer.toString(); 9458 } 9459 9460 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 9461 } 9462 9463 public void onTextChanged(CharSequence buffer, int start, int before, int after) { 9464 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 9465 + " before=" + before + " after=" + after + ": " + buffer); 9466 TextView.this.handleTextChanged(buffer, start, before, after); 9467 9468 if (AccessibilityManager.getInstance(mContext).isEnabled() && 9469 (isFocused() || isSelected() && isShown())) { 9470 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 9471 mBeforeText = null; 9472 } 9473 } 9474 9475 public void afterTextChanged(Editable buffer) { 9476 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 9477 TextView.this.sendAfterTextChanged(buffer); 9478 9479 if (MetaKeyKeyListener.getMetaState(buffer, MetaKeyKeyListener.META_SELECTING) != 0) { 9480 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 9481 } 9482 } 9483 9484 public void onSpanChanged(Spannable buf, Object what, int s, int e, int st, int en) { 9485 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 9486 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 9487 TextView.this.spanChange(buf, what, s, st, e, en); 9488 } 9489 9490 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 9491 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 9492 + " what=" + what + ": " + buf); 9493 TextView.this.spanChange(buf, what, -1, s, -1, e); 9494 } 9495 9496 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 9497 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 9498 + " what=" + what + ": " + buf); 9499 TextView.this.spanChange(buf, what, s, -1, e, -1); 9500 } 9501 } 9502} 9503