TextView.java revision 6090995951c6e2e4dcf38102f01793f8a94166e1
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.widget; 18 19import android.R; 20import android.content.ClipData; 21import android.content.ClipboardManager; 22import android.content.Context; 23import android.content.UndoManager; 24import android.content.res.ColorStateList; 25import android.content.res.CompatibilityInfo; 26import android.content.res.Resources; 27import android.content.res.TypedArray; 28import android.content.res.XmlResourceParser; 29import android.graphics.Canvas; 30import android.graphics.Insets; 31import android.graphics.Paint; 32import android.graphics.Path; 33import android.graphics.Rect; 34import android.graphics.RectF; 35import android.graphics.Typeface; 36import android.graphics.drawable.Drawable; 37import android.inputmethodservice.ExtractEditText; 38import android.os.AsyncTask; 39import android.os.Bundle; 40import android.os.Handler; 41import android.os.Message; 42import android.os.Parcel; 43import android.os.Parcelable; 44import android.os.SystemClock; 45import android.provider.Settings; 46import android.text.BoringLayout; 47import android.text.DynamicLayout; 48import android.text.Editable; 49import android.text.GetChars; 50import android.text.GraphicsOperations; 51import android.text.InputFilter; 52import android.text.InputType; 53import android.text.Layout; 54import android.text.ParcelableSpan; 55import android.text.Selection; 56import android.text.SpanWatcher; 57import android.text.Spannable; 58import android.text.SpannableString; 59import android.text.SpannableStringBuilder; 60import android.text.Spanned; 61import android.text.SpannedString; 62import android.text.StaticLayout; 63import android.text.TextDirectionHeuristic; 64import android.text.TextDirectionHeuristics; 65import android.text.TextPaint; 66import android.text.TextUtils; 67import android.text.TextUtils.TruncateAt; 68import android.text.TextWatcher; 69import android.text.method.AllCapsTransformationMethod; 70import android.text.method.ArrowKeyMovementMethod; 71import android.text.method.DateKeyListener; 72import android.text.method.DateTimeKeyListener; 73import android.text.method.DialerKeyListener; 74import android.text.method.DigitsKeyListener; 75import android.text.method.KeyListener; 76import android.text.method.LinkMovementMethod; 77import android.text.method.MetaKeyKeyListener; 78import android.text.method.MovementMethod; 79import android.text.method.PasswordTransformationMethod; 80import android.text.method.SingleLineTransformationMethod; 81import android.text.method.TextKeyListener; 82import android.text.method.TimeKeyListener; 83import android.text.method.TransformationMethod; 84import android.text.method.TransformationMethod2; 85import android.text.method.WordIterator; 86import android.text.style.CharacterStyle; 87import android.text.style.ClickableSpan; 88import android.text.style.ParagraphStyle; 89import android.text.style.SpellCheckSpan; 90import android.text.style.SuggestionSpan; 91import android.text.style.URLSpan; 92import android.text.style.UpdateAppearance; 93import android.text.util.Linkify; 94import android.util.AttributeSet; 95import android.util.FloatMath; 96import android.util.Log; 97import android.util.TypedValue; 98import android.view.AccessibilityIterators.TextSegmentIterator; 99import android.view.ActionMode; 100import android.view.DragEvent; 101import android.view.Gravity; 102import android.view.HapticFeedbackConstants; 103import android.view.KeyCharacterMap; 104import android.view.KeyEvent; 105import android.view.Menu; 106import android.view.MenuItem; 107import android.view.MotionEvent; 108import android.view.View; 109import android.view.ViewConfiguration; 110import android.view.ViewDebug; 111import android.view.ViewGroup.LayoutParams; 112import android.view.ViewRootImpl; 113import android.view.ViewTreeObserver; 114import android.view.accessibility.AccessibilityEvent; 115import android.view.accessibility.AccessibilityManager; 116import android.view.accessibility.AccessibilityNodeInfo; 117import android.view.animation.AnimationUtils; 118import android.view.inputmethod.BaseInputConnection; 119import android.view.inputmethod.CompletionInfo; 120import android.view.inputmethod.CorrectionInfo; 121import android.view.inputmethod.EditorInfo; 122import android.view.inputmethod.ExtractedText; 123import android.view.inputmethod.ExtractedTextRequest; 124import android.view.inputmethod.InputConnection; 125import android.view.inputmethod.InputMethodManager; 126import android.view.textservice.SpellCheckerSubtype; 127import android.view.textservice.TextServicesManager; 128import android.widget.RemoteViews.RemoteView; 129 130import com.android.internal.util.FastMath; 131import com.android.internal.widget.EditableInputConnection; 132 133import org.xmlpull.v1.XmlPullParserException; 134 135import java.io.IOException; 136import java.lang.ref.WeakReference; 137import java.util.ArrayList; 138import java.util.Locale; 139 140import static android.os.Build.VERSION_CODES.JELLY_BEAN_MR1; 141 142/** 143 * Displays text to the user and optionally allows them to edit it. A TextView 144 * is a complete text editor, however the basic class is configured to not 145 * allow editing; see {@link EditText} for a subclass that configures the text 146 * view for editing. 147 * 148 * <p> 149 * To allow users to copy some or all of the TextView's value and paste it somewhere else, set the 150 * XML attribute {@link android.R.styleable#TextView_textIsSelectable 151 * android:textIsSelectable} to "true" or call 152 * {@link #setTextIsSelectable setTextIsSelectable(true)}. The {@code textIsSelectable} flag 153 * allows users to make selection gestures in the TextView, which in turn triggers the system's 154 * built-in copy/paste controls. 155 * <p> 156 * <b>XML attributes</b> 157 * <p> 158 * See {@link android.R.styleable#TextView TextView Attributes}, 159 * {@link android.R.styleable#View View Attributes} 160 * 161 * @attr ref android.R.styleable#TextView_text 162 * @attr ref android.R.styleable#TextView_bufferType 163 * @attr ref android.R.styleable#TextView_hint 164 * @attr ref android.R.styleable#TextView_textColor 165 * @attr ref android.R.styleable#TextView_textColorHighlight 166 * @attr ref android.R.styleable#TextView_textColorHint 167 * @attr ref android.R.styleable#TextView_textAppearance 168 * @attr ref android.R.styleable#TextView_textColorLink 169 * @attr ref android.R.styleable#TextView_textSize 170 * @attr ref android.R.styleable#TextView_textScaleX 171 * @attr ref android.R.styleable#TextView_fontFamily 172 * @attr ref android.R.styleable#TextView_typeface 173 * @attr ref android.R.styleable#TextView_textStyle 174 * @attr ref android.R.styleable#TextView_cursorVisible 175 * @attr ref android.R.styleable#TextView_maxLines 176 * @attr ref android.R.styleable#TextView_maxHeight 177 * @attr ref android.R.styleable#TextView_lines 178 * @attr ref android.R.styleable#TextView_height 179 * @attr ref android.R.styleable#TextView_minLines 180 * @attr ref android.R.styleable#TextView_minHeight 181 * @attr ref android.R.styleable#TextView_maxEms 182 * @attr ref android.R.styleable#TextView_maxWidth 183 * @attr ref android.R.styleable#TextView_ems 184 * @attr ref android.R.styleable#TextView_width 185 * @attr ref android.R.styleable#TextView_minEms 186 * @attr ref android.R.styleable#TextView_minWidth 187 * @attr ref android.R.styleable#TextView_gravity 188 * @attr ref android.R.styleable#TextView_scrollHorizontally 189 * @attr ref android.R.styleable#TextView_password 190 * @attr ref android.R.styleable#TextView_singleLine 191 * @attr ref android.R.styleable#TextView_selectAllOnFocus 192 * @attr ref android.R.styleable#TextView_includeFontPadding 193 * @attr ref android.R.styleable#TextView_maxLength 194 * @attr ref android.R.styleable#TextView_shadowColor 195 * @attr ref android.R.styleable#TextView_shadowDx 196 * @attr ref android.R.styleable#TextView_shadowDy 197 * @attr ref android.R.styleable#TextView_shadowRadius 198 * @attr ref android.R.styleable#TextView_autoLink 199 * @attr ref android.R.styleable#TextView_linksClickable 200 * @attr ref android.R.styleable#TextView_numeric 201 * @attr ref android.R.styleable#TextView_digits 202 * @attr ref android.R.styleable#TextView_phoneNumber 203 * @attr ref android.R.styleable#TextView_inputMethod 204 * @attr ref android.R.styleable#TextView_capitalize 205 * @attr ref android.R.styleable#TextView_autoText 206 * @attr ref android.R.styleable#TextView_editable 207 * @attr ref android.R.styleable#TextView_freezesText 208 * @attr ref android.R.styleable#TextView_ellipsize 209 * @attr ref android.R.styleable#TextView_drawableTop 210 * @attr ref android.R.styleable#TextView_drawableBottom 211 * @attr ref android.R.styleable#TextView_drawableRight 212 * @attr ref android.R.styleable#TextView_drawableLeft 213 * @attr ref android.R.styleable#TextView_drawableStart 214 * @attr ref android.R.styleable#TextView_drawableEnd 215 * @attr ref android.R.styleable#TextView_drawablePadding 216 * @attr ref android.R.styleable#TextView_lineSpacingExtra 217 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 218 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 219 * @attr ref android.R.styleable#TextView_inputType 220 * @attr ref android.R.styleable#TextView_imeOptions 221 * @attr ref android.R.styleable#TextView_privateImeOptions 222 * @attr ref android.R.styleable#TextView_imeActionLabel 223 * @attr ref android.R.styleable#TextView_imeActionId 224 * @attr ref android.R.styleable#TextView_editorExtras 225 */ 226@RemoteView 227public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 228 static final String LOG_TAG = "TextView"; 229 static final boolean DEBUG_EXTRACT = false; 230 231 // Enum for the "typeface" XML parameter. 232 // TODO: How can we get this from the XML instead of hardcoding it here? 233 private static final int SANS = 1; 234 private static final int SERIF = 2; 235 private static final int MONOSPACE = 3; 236 237 // Bitfield for the "numeric" XML parameter. 238 // TODO: How can we get this from the XML instead of hardcoding it here? 239 private static final int SIGNED = 2; 240 private static final int DECIMAL = 4; 241 242 /** 243 * Draw marquee text with fading edges as usual 244 */ 245 private static final int MARQUEE_FADE_NORMAL = 0; 246 247 /** 248 * Draw marquee text as ellipsize end while inactive instead of with the fade. 249 * (Useful for devices where the fade can be expensive if overdone) 250 */ 251 private static final int MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS = 1; 252 253 /** 254 * Draw marquee text with fading edges because it is currently active/animating. 255 */ 256 private static final int MARQUEE_FADE_SWITCH_SHOW_FADE = 2; 257 258 private static final int LINES = 1; 259 private static final int EMS = LINES; 260 private static final int PIXELS = 2; 261 262 private static final RectF TEMP_RECTF = new RectF(); 263 264 // XXX should be much larger 265 private static final int VERY_WIDE = 1024*1024; 266 private static final int ANIMATED_SCROLL_GAP = 250; 267 268 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 269 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 270 271 private static final int CHANGE_WATCHER_PRIORITY = 100; 272 273 // New state used to change background based on whether this TextView is multiline. 274 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 275 276 // System wide time for last cut or copy action. 277 static long LAST_CUT_OR_COPY_TIME; 278 279 private ColorStateList mTextColor; 280 private ColorStateList mHintTextColor; 281 private ColorStateList mLinkTextColor; 282 private int mCurTextColor; 283 private int mCurHintTextColor; 284 private boolean mFreezesText; 285 private boolean mTemporaryDetach; 286 private boolean mDispatchTemporaryDetach; 287 288 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 289 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 290 291 private float mShadowRadius, mShadowDx, mShadowDy; 292 293 private boolean mPreDrawRegistered; 294 295 // A flag to prevent repeated movements from escaping the enclosing text view. The idea here is 296 // that if a user is holding down a movement key to traverse text, we shouldn't also traverse 297 // the view hierarchy. On the other hand, if the user is using the movement key to traverse views 298 // (i.e. the first movement was to traverse out of this view, or this view was traversed into by 299 // the user holding the movement key down) then we shouldn't prevent the focus from changing. 300 private boolean mPreventDefaultMovement; 301 302 private TextUtils.TruncateAt mEllipsize; 303 304 static class Drawables { 305 final static int DRAWABLE_NONE = -1; 306 final static int DRAWABLE_RIGHT = 0; 307 final static int DRAWABLE_LEFT = 1; 308 309 final Rect mCompoundRect = new Rect(); 310 311 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight, 312 mDrawableStart, mDrawableEnd, mDrawableError, mDrawableTemp; 313 314 Drawable mDrawableLeftInitial, mDrawableRightInitial; 315 boolean mIsRtlCompatibilityMode; 316 boolean mOverride; 317 318 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight, 319 mDrawableSizeStart, mDrawableSizeEnd, mDrawableSizeError, mDrawableSizeTemp; 320 321 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight, 322 mDrawableHeightStart, mDrawableHeightEnd, mDrawableHeightError, mDrawableHeightTemp; 323 324 int mDrawablePadding; 325 326 int mDrawableSaved = DRAWABLE_NONE; 327 328 public Drawables(Context context) { 329 final int targetSdkVersion = context.getApplicationInfo().targetSdkVersion; 330 mIsRtlCompatibilityMode = (targetSdkVersion < JELLY_BEAN_MR1 || 331 !context.getApplicationInfo().hasRtlSupport()); 332 mOverride = false; 333 } 334 335 public void resolveWithLayoutDirection(int layoutDirection) { 336 // First reset "left" and "right" drawables to their initial values 337 mDrawableLeft = mDrawableLeftInitial; 338 mDrawableRight = mDrawableRightInitial; 339 340 if (mIsRtlCompatibilityMode) { 341 // Use "start" drawable as "left" drawable if the "left" drawable was not defined 342 if (mDrawableStart != null && mDrawableLeft == null) { 343 mDrawableLeft = mDrawableStart; 344 mDrawableSizeLeft = mDrawableSizeStart; 345 mDrawableHeightLeft = mDrawableHeightStart; 346 } 347 // Use "end" drawable as "right" drawable if the "right" drawable was not defined 348 if (mDrawableEnd != null && mDrawableRight == null) { 349 mDrawableRight = mDrawableEnd; 350 mDrawableSizeRight = mDrawableSizeEnd; 351 mDrawableHeightRight = mDrawableHeightEnd; 352 } 353 } else { 354 // JB-MR1+ normal case: "start" / "end" drawables are overriding "left" / "right" 355 // drawable if and only if they have been defined 356 switch(layoutDirection) { 357 case LAYOUT_DIRECTION_RTL: 358 if (mOverride) { 359 mDrawableRight = mDrawableStart; 360 mDrawableSizeRight = mDrawableSizeStart; 361 mDrawableHeightRight = mDrawableHeightStart; 362 363 mDrawableLeft = mDrawableEnd; 364 mDrawableSizeLeft = mDrawableSizeEnd; 365 mDrawableHeightLeft = mDrawableHeightEnd; 366 } 367 break; 368 369 case LAYOUT_DIRECTION_LTR: 370 default: 371 if (mOverride) { 372 mDrawableLeft = mDrawableStart; 373 mDrawableSizeLeft = mDrawableSizeStart; 374 mDrawableHeightLeft = mDrawableHeightStart; 375 376 mDrawableRight = mDrawableEnd; 377 mDrawableSizeRight = mDrawableSizeEnd; 378 mDrawableHeightRight = mDrawableHeightEnd; 379 } 380 break; 381 } 382 } 383 applyErrorDrawableIfNeeded(layoutDirection); 384 updateDrawablesLayoutDirection(layoutDirection); 385 } 386 387 private void updateDrawablesLayoutDirection(int layoutDirection) { 388 if (mDrawableLeft != null) { 389 mDrawableLeft.setLayoutDirection(layoutDirection); 390 } 391 if (mDrawableRight != null) { 392 mDrawableRight.setLayoutDirection(layoutDirection); 393 } 394 if (mDrawableTop != null) { 395 mDrawableTop.setLayoutDirection(layoutDirection); 396 } 397 if (mDrawableBottom != null) { 398 mDrawableBottom.setLayoutDirection(layoutDirection); 399 } 400 } 401 402 public void setErrorDrawable(Drawable dr, TextView tv) { 403 if (mDrawableError != dr && mDrawableError != null) { 404 mDrawableError.setCallback(null); 405 } 406 mDrawableError = dr; 407 408 final Rect compoundRect = mCompoundRect; 409 int[] state = tv.getDrawableState(); 410 411 if (mDrawableError != null) { 412 mDrawableError.setState(state); 413 mDrawableError.copyBounds(compoundRect); 414 mDrawableError.setCallback(tv); 415 mDrawableSizeError = compoundRect.width(); 416 mDrawableHeightError = compoundRect.height(); 417 } else { 418 mDrawableSizeError = mDrawableHeightError = 0; 419 } 420 } 421 422 private void applyErrorDrawableIfNeeded(int layoutDirection) { 423 // first restore the initial state if needed 424 switch (mDrawableSaved) { 425 case DRAWABLE_LEFT: 426 mDrawableLeft = mDrawableTemp; 427 mDrawableSizeLeft = mDrawableSizeTemp; 428 mDrawableHeightLeft = mDrawableHeightTemp; 429 break; 430 case DRAWABLE_RIGHT: 431 mDrawableRight = mDrawableTemp; 432 mDrawableSizeRight = mDrawableSizeTemp; 433 mDrawableHeightRight = mDrawableHeightTemp; 434 break; 435 case DRAWABLE_NONE: 436 default: 437 } 438 // then, if needed, assign the Error drawable to the correct location 439 if (mDrawableError != null) { 440 switch(layoutDirection) { 441 case LAYOUT_DIRECTION_RTL: 442 mDrawableSaved = DRAWABLE_LEFT; 443 444 mDrawableTemp = mDrawableLeft; 445 mDrawableSizeTemp = mDrawableSizeLeft; 446 mDrawableHeightTemp = mDrawableHeightLeft; 447 448 mDrawableLeft = mDrawableError; 449 mDrawableSizeLeft = mDrawableSizeError; 450 mDrawableHeightLeft = mDrawableHeightError; 451 break; 452 case LAYOUT_DIRECTION_LTR: 453 default: 454 mDrawableSaved = DRAWABLE_RIGHT; 455 456 mDrawableTemp = mDrawableRight; 457 mDrawableSizeTemp = mDrawableSizeRight; 458 mDrawableHeightTemp = mDrawableHeightRight; 459 460 mDrawableRight = mDrawableError; 461 mDrawableSizeRight = mDrawableSizeError; 462 mDrawableHeightRight = mDrawableHeightError; 463 break; 464 } 465 } 466 } 467 } 468 469 Drawables mDrawables; 470 471 private CharWrapper mCharWrapper; 472 473 private Marquee mMarquee; 474 private boolean mRestartMarquee; 475 476 private int mMarqueeRepeatLimit = 3; 477 478 private int mLastLayoutDirection = -1; 479 480 /** 481 * On some devices the fading edges add a performance penalty if used 482 * extensively in the same layout. This mode indicates how the marquee 483 * is currently being shown, if applicable. (mEllipsize will == MARQUEE) 484 */ 485 private int mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 486 487 /** 488 * When mMarqueeFadeMode is not MARQUEE_FADE_NORMAL, this stores 489 * the layout that should be used when the mode switches. 490 */ 491 private Layout mSavedMarqueeModeLayout; 492 493 @ViewDebug.ExportedProperty(category = "text") 494 private CharSequence mText; 495 private CharSequence mTransformed; 496 private BufferType mBufferType = BufferType.NORMAL; 497 498 private CharSequence mHint; 499 private Layout mHintLayout; 500 501 private MovementMethod mMovement; 502 503 private TransformationMethod mTransformation; 504 private boolean mAllowTransformationLengthChange; 505 private ChangeWatcher mChangeWatcher; 506 507 private ArrayList<TextWatcher> mListeners; 508 509 // display attributes 510 private final TextPaint mTextPaint; 511 private boolean mUserSetTextScaleX; 512 private Layout mLayout; 513 514 private int mGravity = Gravity.TOP | Gravity.START; 515 private boolean mHorizontallyScrolling; 516 517 private int mAutoLinkMask; 518 private boolean mLinksClickable = true; 519 520 private float mSpacingMult = 1.0f; 521 private float mSpacingAdd = 0.0f; 522 523 private int mMaximum = Integer.MAX_VALUE; 524 private int mMaxMode = LINES; 525 private int mMinimum = 0; 526 private int mMinMode = LINES; 527 528 private int mOldMaximum = mMaximum; 529 private int mOldMaxMode = mMaxMode; 530 531 private int mMaxWidth = Integer.MAX_VALUE; 532 private int mMaxWidthMode = PIXELS; 533 private int mMinWidth = 0; 534 private int mMinWidthMode = PIXELS; 535 536 private boolean mSingleLine; 537 private int mDesiredHeightAtMeasure = -1; 538 private boolean mIncludePad = true; 539 private int mDeferScroll = -1; 540 541 // tmp primitives, so we don't alloc them on each draw 542 private Rect mTempRect; 543 private long mLastScroll; 544 private Scroller mScroller; 545 546 private BoringLayout.Metrics mBoring, mHintBoring; 547 private BoringLayout mSavedLayout, mSavedHintLayout; 548 549 private TextDirectionHeuristic mTextDir; 550 551 private InputFilter[] mFilters = NO_FILTERS; 552 553 private volatile Locale mCurrentSpellCheckerLocaleCache; 554 555 // It is possible to have a selection even when mEditor is null (programmatically set, like when 556 // a link is pressed). These highlight-related fields do not go in mEditor. 557 int mHighlightColor = 0x6633B5E5; 558 private Path mHighlightPath; 559 private final Paint mHighlightPaint; 560 private boolean mHighlightPathBogus = true; 561 562 // Although these fields are specific to editable text, they are not added to Editor because 563 // they are defined by the TextView's style and are theme-dependent. 564 int mCursorDrawableRes; 565 // These four fields, could be moved to Editor, since we know their default values and we 566 // could condition the creation of the Editor to a non standard value. This is however 567 // brittle since the hardcoded values here (such as 568 // com.android.internal.R.drawable.text_select_handle_left) would have to be updated if the 569 // default style is modified. 570 int mTextSelectHandleLeftRes; 571 int mTextSelectHandleRightRes; 572 int mTextSelectHandleRes; 573 int mTextEditSuggestionItemLayout; 574 575 /** 576 * EditText specific data, created on demand when one of the Editor fields is used. 577 * See {@link #createEditorIfNeeded()}. 578 */ 579 private Editor mEditor; 580 581 /* 582 * Kick-start the font cache for the zygote process (to pay the cost of 583 * initializing freetype for our default font only once). 584 */ 585 static { 586 Paint p = new Paint(); 587 p.setAntiAlias(true); 588 // We don't care about the result, just the side-effect of measuring. 589 p.measureText("H"); 590 } 591 592 /** 593 * Interface definition for a callback to be invoked when an action is 594 * performed on the editor. 595 */ 596 public interface OnEditorActionListener { 597 /** 598 * Called when an action is being performed. 599 * 600 * @param v The view that was clicked. 601 * @param actionId Identifier of the action. This will be either the 602 * identifier you supplied, or {@link EditorInfo#IME_NULL 603 * EditorInfo.IME_NULL} if being called due to the enter key 604 * being pressed. 605 * @param event If triggered by an enter key, this is the event; 606 * otherwise, this is null. 607 * @return Return true if you have consumed the action, else false. 608 */ 609 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 610 } 611 612 public TextView(Context context) { 613 this(context, null); 614 } 615 616 public TextView(Context context, AttributeSet attrs) { 617 this(context, attrs, com.android.internal.R.attr.textViewStyle); 618 } 619 620 public TextView(Context context, AttributeSet attrs, int defStyleAttr) { 621 this(context, attrs, defStyleAttr, 0); 622 } 623 624 @SuppressWarnings("deprecation") 625 public TextView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 626 super(context, attrs, defStyleAttr, defStyleRes); 627 628 mText = ""; 629 630 final Resources res = getResources(); 631 final CompatibilityInfo compat = res.getCompatibilityInfo(); 632 633 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 634 mTextPaint.density = res.getDisplayMetrics().density; 635 mTextPaint.setCompatibilityScaling(compat.applicationScale); 636 637 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 638 mHighlightPaint.setCompatibilityScaling(compat.applicationScale); 639 640 mMovement = getDefaultMovementMethod(); 641 642 mTransformation = null; 643 644 int textColorHighlight = 0; 645 ColorStateList textColor = null; 646 ColorStateList textColorHint = null; 647 ColorStateList textColorLink = null; 648 int textSize = 15; 649 String fontFamily = null; 650 int typefaceIndex = -1; 651 int styleIndex = -1; 652 boolean allCaps = false; 653 int shadowcolor = 0; 654 float dx = 0, dy = 0, r = 0; 655 656 final Resources.Theme theme = context.getTheme(); 657 658 /* 659 * Look the appearance up without checking first if it exists because 660 * almost every TextView has one and it greatly simplifies the logic 661 * to be able to parse the appearance first and then let specific tags 662 * for this View override it. 663 */ 664 TypedArray a = theme.obtainStyledAttributes(attrs, 665 com.android.internal.R.styleable.TextViewAppearance, defStyleAttr, defStyleRes); 666 TypedArray appearance = null; 667 int ap = a.getResourceId( 668 com.android.internal.R.styleable.TextViewAppearance_textAppearance, -1); 669 a.recycle(); 670 if (ap != -1) { 671 appearance = theme.obtainStyledAttributes( 672 ap, com.android.internal.R.styleable.TextAppearance); 673 } 674 if (appearance != null) { 675 int n = appearance.getIndexCount(); 676 for (int i = 0; i < n; i++) { 677 int attr = appearance.getIndex(i); 678 679 switch (attr) { 680 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 681 textColorHighlight = appearance.getColor(attr, textColorHighlight); 682 break; 683 684 case com.android.internal.R.styleable.TextAppearance_textColor: 685 textColor = appearance.getColorStateList(attr); 686 break; 687 688 case com.android.internal.R.styleable.TextAppearance_textColorHint: 689 textColorHint = appearance.getColorStateList(attr); 690 break; 691 692 case com.android.internal.R.styleable.TextAppearance_textColorLink: 693 textColorLink = appearance.getColorStateList(attr); 694 break; 695 696 case com.android.internal.R.styleable.TextAppearance_textSize: 697 textSize = appearance.getDimensionPixelSize(attr, textSize); 698 break; 699 700 case com.android.internal.R.styleable.TextAppearance_typeface: 701 typefaceIndex = appearance.getInt(attr, -1); 702 break; 703 704 case com.android.internal.R.styleable.TextAppearance_fontFamily: 705 fontFamily = appearance.getString(attr); 706 break; 707 708 case com.android.internal.R.styleable.TextAppearance_textStyle: 709 styleIndex = appearance.getInt(attr, -1); 710 break; 711 712 case com.android.internal.R.styleable.TextAppearance_textAllCaps: 713 allCaps = appearance.getBoolean(attr, false); 714 break; 715 716 case com.android.internal.R.styleable.TextAppearance_shadowColor: 717 shadowcolor = a.getInt(attr, 0); 718 break; 719 720 case com.android.internal.R.styleable.TextAppearance_shadowDx: 721 dx = a.getFloat(attr, 0); 722 break; 723 724 case com.android.internal.R.styleable.TextAppearance_shadowDy: 725 dy = a.getFloat(attr, 0); 726 break; 727 728 case com.android.internal.R.styleable.TextAppearance_shadowRadius: 729 r = a.getFloat(attr, 0); 730 break; 731 } 732 } 733 734 appearance.recycle(); 735 } 736 737 boolean editable = getDefaultEditable(); 738 CharSequence inputMethod = null; 739 int numeric = 0; 740 CharSequence digits = null; 741 boolean phone = false; 742 boolean autotext = false; 743 int autocap = -1; 744 int buffertype = 0; 745 boolean selectallonfocus = false; 746 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 747 drawableBottom = null, drawableStart = null, drawableEnd = null; 748 int drawablePadding = 0; 749 int ellipsize = -1; 750 boolean singleLine = false; 751 int maxlength = -1; 752 CharSequence text = ""; 753 CharSequence hint = null; 754 boolean password = false; 755 int inputType = EditorInfo.TYPE_NULL; 756 757 a = theme.obtainStyledAttributes( 758 attrs, com.android.internal.R.styleable.TextView, defStyleAttr, defStyleRes); 759 760 int n = a.getIndexCount(); 761 for (int i = 0; i < n; i++) { 762 int attr = a.getIndex(i); 763 764 switch (attr) { 765 case com.android.internal.R.styleable.TextView_editable: 766 editable = a.getBoolean(attr, editable); 767 break; 768 769 case com.android.internal.R.styleable.TextView_inputMethod: 770 inputMethod = a.getText(attr); 771 break; 772 773 case com.android.internal.R.styleable.TextView_numeric: 774 numeric = a.getInt(attr, numeric); 775 break; 776 777 case com.android.internal.R.styleable.TextView_digits: 778 digits = a.getText(attr); 779 break; 780 781 case com.android.internal.R.styleable.TextView_phoneNumber: 782 phone = a.getBoolean(attr, phone); 783 break; 784 785 case com.android.internal.R.styleable.TextView_autoText: 786 autotext = a.getBoolean(attr, autotext); 787 break; 788 789 case com.android.internal.R.styleable.TextView_capitalize: 790 autocap = a.getInt(attr, autocap); 791 break; 792 793 case com.android.internal.R.styleable.TextView_bufferType: 794 buffertype = a.getInt(attr, buffertype); 795 break; 796 797 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 798 selectallonfocus = a.getBoolean(attr, selectallonfocus); 799 break; 800 801 case com.android.internal.R.styleable.TextView_autoLink: 802 mAutoLinkMask = a.getInt(attr, 0); 803 break; 804 805 case com.android.internal.R.styleable.TextView_linksClickable: 806 mLinksClickable = a.getBoolean(attr, true); 807 break; 808 809 case com.android.internal.R.styleable.TextView_drawableLeft: 810 drawableLeft = a.getDrawable(attr); 811 break; 812 813 case com.android.internal.R.styleable.TextView_drawableTop: 814 drawableTop = a.getDrawable(attr); 815 break; 816 817 case com.android.internal.R.styleable.TextView_drawableRight: 818 drawableRight = a.getDrawable(attr); 819 break; 820 821 case com.android.internal.R.styleable.TextView_drawableBottom: 822 drawableBottom = a.getDrawable(attr); 823 break; 824 825 case com.android.internal.R.styleable.TextView_drawableStart: 826 drawableStart = a.getDrawable(attr); 827 break; 828 829 case com.android.internal.R.styleable.TextView_drawableEnd: 830 drawableEnd = a.getDrawable(attr); 831 break; 832 833 case com.android.internal.R.styleable.TextView_drawablePadding: 834 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 835 break; 836 837 case com.android.internal.R.styleable.TextView_maxLines: 838 setMaxLines(a.getInt(attr, -1)); 839 break; 840 841 case com.android.internal.R.styleable.TextView_maxHeight: 842 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 843 break; 844 845 case com.android.internal.R.styleable.TextView_lines: 846 setLines(a.getInt(attr, -1)); 847 break; 848 849 case com.android.internal.R.styleable.TextView_height: 850 setHeight(a.getDimensionPixelSize(attr, -1)); 851 break; 852 853 case com.android.internal.R.styleable.TextView_minLines: 854 setMinLines(a.getInt(attr, -1)); 855 break; 856 857 case com.android.internal.R.styleable.TextView_minHeight: 858 setMinHeight(a.getDimensionPixelSize(attr, -1)); 859 break; 860 861 case com.android.internal.R.styleable.TextView_maxEms: 862 setMaxEms(a.getInt(attr, -1)); 863 break; 864 865 case com.android.internal.R.styleable.TextView_maxWidth: 866 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 867 break; 868 869 case com.android.internal.R.styleable.TextView_ems: 870 setEms(a.getInt(attr, -1)); 871 break; 872 873 case com.android.internal.R.styleable.TextView_width: 874 setWidth(a.getDimensionPixelSize(attr, -1)); 875 break; 876 877 case com.android.internal.R.styleable.TextView_minEms: 878 setMinEms(a.getInt(attr, -1)); 879 break; 880 881 case com.android.internal.R.styleable.TextView_minWidth: 882 setMinWidth(a.getDimensionPixelSize(attr, -1)); 883 break; 884 885 case com.android.internal.R.styleable.TextView_gravity: 886 setGravity(a.getInt(attr, -1)); 887 break; 888 889 case com.android.internal.R.styleable.TextView_hint: 890 hint = a.getText(attr); 891 break; 892 893 case com.android.internal.R.styleable.TextView_text: 894 text = a.getText(attr); 895 break; 896 897 case com.android.internal.R.styleable.TextView_scrollHorizontally: 898 if (a.getBoolean(attr, false)) { 899 setHorizontallyScrolling(true); 900 } 901 break; 902 903 case com.android.internal.R.styleable.TextView_singleLine: 904 singleLine = a.getBoolean(attr, singleLine); 905 break; 906 907 case com.android.internal.R.styleable.TextView_ellipsize: 908 ellipsize = a.getInt(attr, ellipsize); 909 break; 910 911 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 912 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 913 break; 914 915 case com.android.internal.R.styleable.TextView_includeFontPadding: 916 if (!a.getBoolean(attr, true)) { 917 setIncludeFontPadding(false); 918 } 919 break; 920 921 case com.android.internal.R.styleable.TextView_cursorVisible: 922 if (!a.getBoolean(attr, true)) { 923 setCursorVisible(false); 924 } 925 break; 926 927 case com.android.internal.R.styleable.TextView_maxLength: 928 maxlength = a.getInt(attr, -1); 929 break; 930 931 case com.android.internal.R.styleable.TextView_textScaleX: 932 setTextScaleX(a.getFloat(attr, 1.0f)); 933 break; 934 935 case com.android.internal.R.styleable.TextView_freezesText: 936 mFreezesText = a.getBoolean(attr, false); 937 break; 938 939 case com.android.internal.R.styleable.TextView_shadowColor: 940 shadowcolor = a.getInt(attr, 0); 941 break; 942 943 case com.android.internal.R.styleable.TextView_shadowDx: 944 dx = a.getFloat(attr, 0); 945 break; 946 947 case com.android.internal.R.styleable.TextView_shadowDy: 948 dy = a.getFloat(attr, 0); 949 break; 950 951 case com.android.internal.R.styleable.TextView_shadowRadius: 952 r = a.getFloat(attr, 0); 953 break; 954 955 case com.android.internal.R.styleable.TextView_enabled: 956 setEnabled(a.getBoolean(attr, isEnabled())); 957 break; 958 959 case com.android.internal.R.styleable.TextView_textColorHighlight: 960 textColorHighlight = a.getColor(attr, textColorHighlight); 961 break; 962 963 case com.android.internal.R.styleable.TextView_textColor: 964 textColor = a.getColorStateList(attr); 965 break; 966 967 case com.android.internal.R.styleable.TextView_textColorHint: 968 textColorHint = a.getColorStateList(attr); 969 break; 970 971 case com.android.internal.R.styleable.TextView_textColorLink: 972 textColorLink = a.getColorStateList(attr); 973 break; 974 975 case com.android.internal.R.styleable.TextView_textSize: 976 textSize = a.getDimensionPixelSize(attr, textSize); 977 break; 978 979 case com.android.internal.R.styleable.TextView_typeface: 980 typefaceIndex = a.getInt(attr, typefaceIndex); 981 break; 982 983 case com.android.internal.R.styleable.TextView_textStyle: 984 styleIndex = a.getInt(attr, styleIndex); 985 break; 986 987 case com.android.internal.R.styleable.TextView_fontFamily: 988 fontFamily = a.getString(attr); 989 break; 990 991 case com.android.internal.R.styleable.TextView_password: 992 password = a.getBoolean(attr, password); 993 break; 994 995 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 996 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 997 break; 998 999 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 1000 mSpacingMult = a.getFloat(attr, mSpacingMult); 1001 break; 1002 1003 case com.android.internal.R.styleable.TextView_inputType: 1004 inputType = a.getInt(attr, EditorInfo.TYPE_NULL); 1005 break; 1006 1007 case com.android.internal.R.styleable.TextView_imeOptions: 1008 createEditorIfNeeded(); 1009 mEditor.createInputContentTypeIfNeeded(); 1010 mEditor.mInputContentType.imeOptions = a.getInt(attr, 1011 mEditor.mInputContentType.imeOptions); 1012 break; 1013 1014 case com.android.internal.R.styleable.TextView_imeActionLabel: 1015 createEditorIfNeeded(); 1016 mEditor.createInputContentTypeIfNeeded(); 1017 mEditor.mInputContentType.imeActionLabel = a.getText(attr); 1018 break; 1019 1020 case com.android.internal.R.styleable.TextView_imeActionId: 1021 createEditorIfNeeded(); 1022 mEditor.createInputContentTypeIfNeeded(); 1023 mEditor.mInputContentType.imeActionId = a.getInt(attr, 1024 mEditor.mInputContentType.imeActionId); 1025 break; 1026 1027 case com.android.internal.R.styleable.TextView_privateImeOptions: 1028 setPrivateImeOptions(a.getString(attr)); 1029 break; 1030 1031 case com.android.internal.R.styleable.TextView_editorExtras: 1032 try { 1033 setInputExtras(a.getResourceId(attr, 0)); 1034 } catch (XmlPullParserException e) { 1035 Log.w(LOG_TAG, "Failure reading input extras", e); 1036 } catch (IOException e) { 1037 Log.w(LOG_TAG, "Failure reading input extras", e); 1038 } 1039 break; 1040 1041 case com.android.internal.R.styleable.TextView_textCursorDrawable: 1042 mCursorDrawableRes = a.getResourceId(attr, 0); 1043 break; 1044 1045 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 1046 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 1047 break; 1048 1049 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 1050 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 1051 break; 1052 1053 case com.android.internal.R.styleable.TextView_textSelectHandle: 1054 mTextSelectHandleRes = a.getResourceId(attr, 0); 1055 break; 1056 1057 case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout: 1058 mTextEditSuggestionItemLayout = a.getResourceId(attr, 0); 1059 break; 1060 1061 case com.android.internal.R.styleable.TextView_textIsSelectable: 1062 setTextIsSelectable(a.getBoolean(attr, false)); 1063 break; 1064 1065 case com.android.internal.R.styleable.TextView_textAllCaps: 1066 allCaps = a.getBoolean(attr, false); 1067 break; 1068 } 1069 } 1070 a.recycle(); 1071 1072 BufferType bufferType = BufferType.EDITABLE; 1073 1074 final int variation = 1075 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 1076 final boolean passwordInputType = variation 1077 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 1078 final boolean webPasswordInputType = variation 1079 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 1080 final boolean numberPasswordInputType = variation 1081 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 1082 1083 if (inputMethod != null) { 1084 Class<?> c; 1085 1086 try { 1087 c = Class.forName(inputMethod.toString()); 1088 } catch (ClassNotFoundException ex) { 1089 throw new RuntimeException(ex); 1090 } 1091 1092 try { 1093 createEditorIfNeeded(); 1094 mEditor.mKeyListener = (KeyListener) c.newInstance(); 1095 } catch (InstantiationException ex) { 1096 throw new RuntimeException(ex); 1097 } catch (IllegalAccessException ex) { 1098 throw new RuntimeException(ex); 1099 } 1100 try { 1101 mEditor.mInputType = inputType != EditorInfo.TYPE_NULL 1102 ? inputType 1103 : mEditor.mKeyListener.getInputType(); 1104 } catch (IncompatibleClassChangeError e) { 1105 mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT; 1106 } 1107 } else if (digits != null) { 1108 createEditorIfNeeded(); 1109 mEditor.mKeyListener = DigitsKeyListener.getInstance(digits.toString()); 1110 // If no input type was specified, we will default to generic 1111 // text, since we can't tell the IME about the set of digits 1112 // that was selected. 1113 mEditor.mInputType = inputType != EditorInfo.TYPE_NULL 1114 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 1115 } else if (inputType != EditorInfo.TYPE_NULL) { 1116 setInputType(inputType, true); 1117 // If set, the input type overrides what was set using the deprecated singleLine flag. 1118 singleLine = !isMultilineInputType(inputType); 1119 } else if (phone) { 1120 createEditorIfNeeded(); 1121 mEditor.mKeyListener = DialerKeyListener.getInstance(); 1122 mEditor.mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 1123 } else if (numeric != 0) { 1124 createEditorIfNeeded(); 1125 mEditor.mKeyListener = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 1126 (numeric & DECIMAL) != 0); 1127 inputType = EditorInfo.TYPE_CLASS_NUMBER; 1128 if ((numeric & SIGNED) != 0) { 1129 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 1130 } 1131 if ((numeric & DECIMAL) != 0) { 1132 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 1133 } 1134 mEditor.mInputType = inputType; 1135 } else if (autotext || autocap != -1) { 1136 TextKeyListener.Capitalize cap; 1137 1138 inputType = EditorInfo.TYPE_CLASS_TEXT; 1139 1140 switch (autocap) { 1141 case 1: 1142 cap = TextKeyListener.Capitalize.SENTENCES; 1143 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 1144 break; 1145 1146 case 2: 1147 cap = TextKeyListener.Capitalize.WORDS; 1148 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 1149 break; 1150 1151 case 3: 1152 cap = TextKeyListener.Capitalize.CHARACTERS; 1153 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 1154 break; 1155 1156 default: 1157 cap = TextKeyListener.Capitalize.NONE; 1158 break; 1159 } 1160 1161 createEditorIfNeeded(); 1162 mEditor.mKeyListener = TextKeyListener.getInstance(autotext, cap); 1163 mEditor.mInputType = inputType; 1164 } else if (isTextSelectable()) { 1165 // Prevent text changes from keyboard. 1166 if (mEditor != null) { 1167 mEditor.mKeyListener = null; 1168 mEditor.mInputType = EditorInfo.TYPE_NULL; 1169 } 1170 bufferType = BufferType.SPANNABLE; 1171 // So that selection can be changed using arrow keys and touch is handled. 1172 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 1173 } else if (editable) { 1174 createEditorIfNeeded(); 1175 mEditor.mKeyListener = TextKeyListener.getInstance(); 1176 mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT; 1177 } else { 1178 if (mEditor != null) mEditor.mKeyListener = null; 1179 1180 switch (buffertype) { 1181 case 0: 1182 bufferType = BufferType.NORMAL; 1183 break; 1184 case 1: 1185 bufferType = BufferType.SPANNABLE; 1186 break; 1187 case 2: 1188 bufferType = BufferType.EDITABLE; 1189 break; 1190 } 1191 } 1192 1193 if (mEditor != null) mEditor.adjustInputType(password, passwordInputType, 1194 webPasswordInputType, numberPasswordInputType); 1195 1196 if (selectallonfocus) { 1197 createEditorIfNeeded(); 1198 mEditor.mSelectAllOnFocus = true; 1199 1200 if (bufferType == BufferType.NORMAL) 1201 bufferType = BufferType.SPANNABLE; 1202 } 1203 1204 // This call will save the initial left/right drawables 1205 setCompoundDrawablesWithIntrinsicBounds( 1206 drawableLeft, drawableTop, drawableRight, drawableBottom); 1207 setRelativeDrawablesIfNeeded(drawableStart, drawableEnd); 1208 setCompoundDrawablePadding(drawablePadding); 1209 1210 // Same as setSingleLine(), but make sure the transformation method and the maximum number 1211 // of lines of height are unchanged for multi-line TextViews. 1212 setInputTypeSingleLine(singleLine); 1213 applySingleLine(singleLine, singleLine, singleLine); 1214 1215 if (singleLine && getKeyListener() == null && ellipsize < 0) { 1216 ellipsize = 3; // END 1217 } 1218 1219 switch (ellipsize) { 1220 case 1: 1221 setEllipsize(TextUtils.TruncateAt.START); 1222 break; 1223 case 2: 1224 setEllipsize(TextUtils.TruncateAt.MIDDLE); 1225 break; 1226 case 3: 1227 setEllipsize(TextUtils.TruncateAt.END); 1228 break; 1229 case 4: 1230 if (ViewConfiguration.get(context).isFadingMarqueeEnabled()) { 1231 setHorizontalFadingEdgeEnabled(true); 1232 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 1233 } else { 1234 setHorizontalFadingEdgeEnabled(false); 1235 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 1236 } 1237 setEllipsize(TextUtils.TruncateAt.MARQUEE); 1238 break; 1239 } 1240 1241 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 1242 setHintTextColor(textColorHint); 1243 setLinkTextColor(textColorLink); 1244 if (textColorHighlight != 0) { 1245 setHighlightColor(textColorHighlight); 1246 } 1247 setRawTextSize(textSize); 1248 1249 if (allCaps) { 1250 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 1251 } 1252 1253 if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) { 1254 setTransformationMethod(PasswordTransformationMethod.getInstance()); 1255 typefaceIndex = MONOSPACE; 1256 } else if (mEditor != null && 1257 (mEditor.mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 1258 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 1259 typefaceIndex = MONOSPACE; 1260 } 1261 1262 setTypefaceFromAttrs(fontFamily, typefaceIndex, styleIndex); 1263 1264 if (shadowcolor != 0) { 1265 setShadowLayer(r, dx, dy, shadowcolor); 1266 } 1267 1268 if (maxlength >= 0) { 1269 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 1270 } else { 1271 setFilters(NO_FILTERS); 1272 } 1273 1274 setText(text, bufferType); 1275 if (hint != null) setHint(hint); 1276 1277 /* 1278 * Views are not normally focusable unless specified to be. 1279 * However, TextViews that have input or movement methods *are* 1280 * focusable by default. 1281 */ 1282 a = context.obtainStyledAttributes( 1283 attrs, com.android.internal.R.styleable.View, defStyleAttr, defStyleRes); 1284 1285 boolean focusable = mMovement != null || getKeyListener() != null; 1286 boolean clickable = focusable; 1287 boolean longClickable = focusable; 1288 1289 n = a.getIndexCount(); 1290 for (int i = 0; i < n; i++) { 1291 int attr = a.getIndex(i); 1292 1293 switch (attr) { 1294 case com.android.internal.R.styleable.View_focusable: 1295 focusable = a.getBoolean(attr, focusable); 1296 break; 1297 1298 case com.android.internal.R.styleable.View_clickable: 1299 clickable = a.getBoolean(attr, clickable); 1300 break; 1301 1302 case com.android.internal.R.styleable.View_longClickable: 1303 longClickable = a.getBoolean(attr, longClickable); 1304 break; 1305 } 1306 } 1307 a.recycle(); 1308 1309 setFocusable(focusable); 1310 setClickable(clickable); 1311 setLongClickable(longClickable); 1312 1313 if (mEditor != null) mEditor.prepareCursorControllers(); 1314 1315 // If not explicitly specified this view is important for accessibility. 1316 if (getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 1317 setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 1318 } 1319 } 1320 1321 private void setTypefaceFromAttrs(String familyName, int typefaceIndex, int styleIndex) { 1322 Typeface tf = null; 1323 if (familyName != null) { 1324 tf = Typeface.create(familyName, styleIndex); 1325 if (tf != null) { 1326 setTypeface(tf); 1327 return; 1328 } 1329 } 1330 switch (typefaceIndex) { 1331 case SANS: 1332 tf = Typeface.SANS_SERIF; 1333 break; 1334 1335 case SERIF: 1336 tf = Typeface.SERIF; 1337 break; 1338 1339 case MONOSPACE: 1340 tf = Typeface.MONOSPACE; 1341 break; 1342 } 1343 1344 setTypeface(tf, styleIndex); 1345 } 1346 1347 private void setRelativeDrawablesIfNeeded(Drawable start, Drawable end) { 1348 boolean hasRelativeDrawables = (start != null) || (end != null); 1349 if (hasRelativeDrawables) { 1350 Drawables dr = mDrawables; 1351 if (dr == null) { 1352 mDrawables = dr = new Drawables(getContext()); 1353 } 1354 mDrawables.mOverride = true; 1355 final Rect compoundRect = dr.mCompoundRect; 1356 int[] state = getDrawableState(); 1357 if (start != null) { 1358 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 1359 start.setState(state); 1360 start.copyBounds(compoundRect); 1361 start.setCallback(this); 1362 1363 dr.mDrawableStart = start; 1364 dr.mDrawableSizeStart = compoundRect.width(); 1365 dr.mDrawableHeightStart = compoundRect.height(); 1366 } else { 1367 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 1368 } 1369 if (end != null) { 1370 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 1371 end.setState(state); 1372 end.copyBounds(compoundRect); 1373 end.setCallback(this); 1374 1375 dr.mDrawableEnd = end; 1376 dr.mDrawableSizeEnd = compoundRect.width(); 1377 dr.mDrawableHeightEnd = compoundRect.height(); 1378 } else { 1379 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 1380 } 1381 resetResolvedDrawables(); 1382 resolveDrawables(); 1383 } 1384 } 1385 1386 @Override 1387 public void setEnabled(boolean enabled) { 1388 if (enabled == isEnabled()) { 1389 return; 1390 } 1391 1392 if (!enabled) { 1393 // Hide the soft input if the currently active TextView is disabled 1394 InputMethodManager imm = InputMethodManager.peekInstance(); 1395 if (imm != null && imm.isActive(this)) { 1396 imm.hideSoftInputFromWindow(getWindowToken(), 0); 1397 } 1398 } 1399 1400 super.setEnabled(enabled); 1401 1402 if (enabled) { 1403 // Make sure IME is updated with current editor info. 1404 InputMethodManager imm = InputMethodManager.peekInstance(); 1405 if (imm != null) imm.restartInput(this); 1406 } 1407 1408 // Will change text color 1409 if (mEditor != null) { 1410 mEditor.invalidateTextDisplayList(); 1411 mEditor.prepareCursorControllers(); 1412 1413 // start or stop the cursor blinking as appropriate 1414 mEditor.makeBlink(); 1415 } 1416 } 1417 1418 /** 1419 * Sets the typeface and style in which the text should be displayed, 1420 * and turns on the fake bold and italic bits in the Paint if the 1421 * Typeface that you provided does not have all the bits in the 1422 * style that you specified. 1423 * 1424 * @attr ref android.R.styleable#TextView_typeface 1425 * @attr ref android.R.styleable#TextView_textStyle 1426 */ 1427 public void setTypeface(Typeface tf, int style) { 1428 if (style > 0) { 1429 if (tf == null) { 1430 tf = Typeface.defaultFromStyle(style); 1431 } else { 1432 tf = Typeface.create(tf, style); 1433 } 1434 1435 setTypeface(tf); 1436 // now compute what (if any) algorithmic styling is needed 1437 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1438 int need = style & ~typefaceStyle; 1439 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1440 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1441 } else { 1442 mTextPaint.setFakeBoldText(false); 1443 mTextPaint.setTextSkewX(0); 1444 setTypeface(tf); 1445 } 1446 } 1447 1448 /** 1449 * Subclasses override this to specify that they have a KeyListener 1450 * by default even if not specifically called for in the XML options. 1451 */ 1452 protected boolean getDefaultEditable() { 1453 return false; 1454 } 1455 1456 /** 1457 * Subclasses override this to specify a default movement method. 1458 */ 1459 protected MovementMethod getDefaultMovementMethod() { 1460 return null; 1461 } 1462 1463 /** 1464 * Return the text the TextView is displaying. If setText() was called with 1465 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1466 * the return value from this method to Spannable or Editable, respectively. 1467 * 1468 * Note: The content of the return value should not be modified. If you want 1469 * a modifiable one, you should make your own copy first. 1470 * 1471 * @attr ref android.R.styleable#TextView_text 1472 */ 1473 @ViewDebug.CapturedViewProperty 1474 public CharSequence getText() { 1475 return mText; 1476 } 1477 1478 /** 1479 * Returns the length, in characters, of the text managed by this TextView 1480 */ 1481 public int length() { 1482 return mText.length(); 1483 } 1484 1485 /** 1486 * Return the text the TextView is displaying as an Editable object. If 1487 * the text is not editable, null is returned. 1488 * 1489 * @see #getText 1490 */ 1491 public Editable getEditableText() { 1492 return (mText instanceof Editable) ? (Editable)mText : null; 1493 } 1494 1495 /** 1496 * @return the height of one standard line in pixels. Note that markup 1497 * within the text can cause individual lines to be taller or shorter 1498 * than this height, and the layout may contain additional first- 1499 * or last-line padding. 1500 */ 1501 public int getLineHeight() { 1502 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 1503 } 1504 1505 /** 1506 * @return the Layout that is currently being used to display the text. 1507 * This can be null if the text or width has recently changes. 1508 */ 1509 public final Layout getLayout() { 1510 return mLayout; 1511 } 1512 1513 /** 1514 * @return the Layout that is currently being used to display the hint text. 1515 * This can be null. 1516 */ 1517 final Layout getHintLayout() { 1518 return mHintLayout; 1519 } 1520 1521 /** 1522 * Retrieve the {@link android.content.UndoManager} that is currently associated 1523 * with this TextView. By default there is no associated UndoManager, so null 1524 * is returned. One can be associated with the TextView through 1525 * {@link #setUndoManager(android.content.UndoManager, String)} 1526 * 1527 * @hide 1528 */ 1529 public final UndoManager getUndoManager() { 1530 return mEditor == null ? null : mEditor.mUndoManager; 1531 } 1532 1533 /** 1534 * Associate an {@link android.content.UndoManager} with this TextView. Once 1535 * done, all edit operations on the TextView will result in appropriate 1536 * {@link android.content.UndoOperation} objects pushed on the given UndoManager's 1537 * stack. 1538 * 1539 * @param undoManager The {@link android.content.UndoManager} to associate with 1540 * this TextView, or null to clear any existing association. 1541 * @param tag String tag identifying this particular TextView owner in the 1542 * UndoManager. This is used to keep the correct association with the 1543 * {@link android.content.UndoOwner} of any operations inside of the UndoManager. 1544 * 1545 * @hide 1546 */ 1547 public final void setUndoManager(UndoManager undoManager, String tag) { 1548 if (undoManager != null) { 1549 createEditorIfNeeded(); 1550 mEditor.mUndoManager = undoManager; 1551 mEditor.mUndoOwner = undoManager.getOwner(tag, this); 1552 mEditor.mUndoInputFilter = new Editor.UndoInputFilter(mEditor); 1553 if (!(mText instanceof Editable)) { 1554 setText(mText, BufferType.EDITABLE); 1555 } 1556 1557 setFilters((Editable) mText, mFilters); 1558 } else if (mEditor != null) { 1559 // XXX need to destroy all associated state. 1560 mEditor.mUndoManager = null; 1561 mEditor.mUndoOwner = null; 1562 mEditor.mUndoInputFilter = null; 1563 } 1564 } 1565 1566 /** 1567 * @return the current key listener for this TextView. 1568 * This will frequently be null for non-EditText TextViews. 1569 * 1570 * @attr ref android.R.styleable#TextView_numeric 1571 * @attr ref android.R.styleable#TextView_digits 1572 * @attr ref android.R.styleable#TextView_phoneNumber 1573 * @attr ref android.R.styleable#TextView_inputMethod 1574 * @attr ref android.R.styleable#TextView_capitalize 1575 * @attr ref android.R.styleable#TextView_autoText 1576 */ 1577 public final KeyListener getKeyListener() { 1578 return mEditor == null ? null : mEditor.mKeyListener; 1579 } 1580 1581 /** 1582 * Sets the key listener to be used with this TextView. This can be null 1583 * to disallow user input. Note that this method has significant and 1584 * subtle interactions with soft keyboards and other input method: 1585 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1586 * for important details. Calling this method will replace the current 1587 * content type of the text view with the content type returned by the 1588 * key listener. 1589 * <p> 1590 * Be warned that if you want a TextView with a key listener or movement 1591 * method not to be focusable, or if you want a TextView without a 1592 * key listener or movement method to be focusable, you must call 1593 * {@link #setFocusable} again after calling this to get the focusability 1594 * back the way you want it. 1595 * 1596 * @attr ref android.R.styleable#TextView_numeric 1597 * @attr ref android.R.styleable#TextView_digits 1598 * @attr ref android.R.styleable#TextView_phoneNumber 1599 * @attr ref android.R.styleable#TextView_inputMethod 1600 * @attr ref android.R.styleable#TextView_capitalize 1601 * @attr ref android.R.styleable#TextView_autoText 1602 */ 1603 public void setKeyListener(KeyListener input) { 1604 setKeyListenerOnly(input); 1605 fixFocusableAndClickableSettings(); 1606 1607 if (input != null) { 1608 createEditorIfNeeded(); 1609 try { 1610 mEditor.mInputType = mEditor.mKeyListener.getInputType(); 1611 } catch (IncompatibleClassChangeError e) { 1612 mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT; 1613 } 1614 // Change inputType, without affecting transformation. 1615 // No need to applySingleLine since mSingleLine is unchanged. 1616 setInputTypeSingleLine(mSingleLine); 1617 } else { 1618 if (mEditor != null) mEditor.mInputType = EditorInfo.TYPE_NULL; 1619 } 1620 1621 InputMethodManager imm = InputMethodManager.peekInstance(); 1622 if (imm != null) imm.restartInput(this); 1623 } 1624 1625 private void setKeyListenerOnly(KeyListener input) { 1626 if (mEditor == null && input == null) return; // null is the default value 1627 1628 createEditorIfNeeded(); 1629 if (mEditor.mKeyListener != input) { 1630 mEditor.mKeyListener = input; 1631 if (input != null && !(mText instanceof Editable)) { 1632 setText(mText); 1633 } 1634 1635 setFilters((Editable) mText, mFilters); 1636 } 1637 } 1638 1639 /** 1640 * @return the movement method being used for this TextView. 1641 * This will frequently be null for non-EditText TextViews. 1642 */ 1643 public final MovementMethod getMovementMethod() { 1644 return mMovement; 1645 } 1646 1647 /** 1648 * Sets the movement method (arrow key handler) to be used for 1649 * this TextView. This can be null to disallow using the arrow keys 1650 * to move the cursor or scroll the view. 1651 * <p> 1652 * Be warned that if you want a TextView with a key listener or movement 1653 * method not to be focusable, or if you want a TextView without a 1654 * key listener or movement method to be focusable, you must call 1655 * {@link #setFocusable} again after calling this to get the focusability 1656 * back the way you want it. 1657 */ 1658 public final void setMovementMethod(MovementMethod movement) { 1659 if (mMovement != movement) { 1660 mMovement = movement; 1661 1662 if (movement != null && !(mText instanceof Spannable)) { 1663 setText(mText); 1664 } 1665 1666 fixFocusableAndClickableSettings(); 1667 1668 // SelectionModifierCursorController depends on textCanBeSelected, which depends on 1669 // mMovement 1670 if (mEditor != null) mEditor.prepareCursorControllers(); 1671 } 1672 } 1673 1674 private void fixFocusableAndClickableSettings() { 1675 if (mMovement != null || (mEditor != null && mEditor.mKeyListener != null)) { 1676 setFocusable(true); 1677 setClickable(true); 1678 setLongClickable(true); 1679 } else { 1680 setFocusable(false); 1681 setClickable(false); 1682 setLongClickable(false); 1683 } 1684 } 1685 1686 /** 1687 * @return the current transformation method for this TextView. 1688 * This will frequently be null except for single-line and password 1689 * fields. 1690 * 1691 * @attr ref android.R.styleable#TextView_password 1692 * @attr ref android.R.styleable#TextView_singleLine 1693 */ 1694 public final TransformationMethod getTransformationMethod() { 1695 return mTransformation; 1696 } 1697 1698 /** 1699 * Sets the transformation that is applied to the text that this 1700 * TextView is displaying. 1701 * 1702 * @attr ref android.R.styleable#TextView_password 1703 * @attr ref android.R.styleable#TextView_singleLine 1704 */ 1705 public final void setTransformationMethod(TransformationMethod method) { 1706 if (method == mTransformation) { 1707 // Avoid the setText() below if the transformation is 1708 // the same. 1709 return; 1710 } 1711 if (mTransformation != null) { 1712 if (mText instanceof Spannable) { 1713 ((Spannable) mText).removeSpan(mTransformation); 1714 } 1715 } 1716 1717 mTransformation = method; 1718 1719 if (method instanceof TransformationMethod2) { 1720 TransformationMethod2 method2 = (TransformationMethod2) method; 1721 mAllowTransformationLengthChange = !isTextSelectable() && !(mText instanceof Editable); 1722 method2.setLengthChangesAllowed(mAllowTransformationLengthChange); 1723 } else { 1724 mAllowTransformationLengthChange = false; 1725 } 1726 1727 setText(mText); 1728 1729 if (hasPasswordTransformationMethod()) { 1730 notifyViewAccessibilityStateChangedIfNeeded( 1731 AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED); 1732 } 1733 } 1734 1735 /** 1736 * Returns the top padding of the view, plus space for the top 1737 * Drawable if any. 1738 */ 1739 public int getCompoundPaddingTop() { 1740 final Drawables dr = mDrawables; 1741 if (dr == null || dr.mDrawableTop == null) { 1742 return mPaddingTop; 1743 } else { 1744 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1745 } 1746 } 1747 1748 /** 1749 * Returns the bottom padding of the view, plus space for the bottom 1750 * Drawable if any. 1751 */ 1752 public int getCompoundPaddingBottom() { 1753 final Drawables dr = mDrawables; 1754 if (dr == null || dr.mDrawableBottom == null) { 1755 return mPaddingBottom; 1756 } else { 1757 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1758 } 1759 } 1760 1761 /** 1762 * Returns the left padding of the view, plus space for the left 1763 * Drawable if any. 1764 */ 1765 public int getCompoundPaddingLeft() { 1766 final Drawables dr = mDrawables; 1767 if (dr == null || dr.mDrawableLeft == null) { 1768 return mPaddingLeft; 1769 } else { 1770 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1771 } 1772 } 1773 1774 /** 1775 * Returns the right padding of the view, plus space for the right 1776 * Drawable if any. 1777 */ 1778 public int getCompoundPaddingRight() { 1779 final Drawables dr = mDrawables; 1780 if (dr == null || dr.mDrawableRight == null) { 1781 return mPaddingRight; 1782 } else { 1783 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1784 } 1785 } 1786 1787 /** 1788 * Returns the start padding of the view, plus space for the start 1789 * Drawable if any. 1790 */ 1791 public int getCompoundPaddingStart() { 1792 resolveDrawables(); 1793 switch(getLayoutDirection()) { 1794 default: 1795 case LAYOUT_DIRECTION_LTR: 1796 return getCompoundPaddingLeft(); 1797 case LAYOUT_DIRECTION_RTL: 1798 return getCompoundPaddingRight(); 1799 } 1800 } 1801 1802 /** 1803 * Returns the end padding of the view, plus space for the end 1804 * Drawable if any. 1805 */ 1806 public int getCompoundPaddingEnd() { 1807 resolveDrawables(); 1808 switch(getLayoutDirection()) { 1809 default: 1810 case LAYOUT_DIRECTION_LTR: 1811 return getCompoundPaddingRight(); 1812 case LAYOUT_DIRECTION_RTL: 1813 return getCompoundPaddingLeft(); 1814 } 1815 } 1816 1817 /** 1818 * Returns the extended top padding of the view, including both the 1819 * top Drawable if any and any extra space to keep more than maxLines 1820 * of text from showing. It is only valid to call this after measuring. 1821 */ 1822 public int getExtendedPaddingTop() { 1823 if (mMaxMode != LINES) { 1824 return getCompoundPaddingTop(); 1825 } 1826 1827 if (mLayout.getLineCount() <= mMaximum) { 1828 return getCompoundPaddingTop(); 1829 } 1830 1831 int top = getCompoundPaddingTop(); 1832 int bottom = getCompoundPaddingBottom(); 1833 int viewht = getHeight() - top - bottom; 1834 int layoutht = mLayout.getLineTop(mMaximum); 1835 1836 if (layoutht >= viewht) { 1837 return top; 1838 } 1839 1840 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1841 if (gravity == Gravity.TOP) { 1842 return top; 1843 } else if (gravity == Gravity.BOTTOM) { 1844 return top + viewht - layoutht; 1845 } else { // (gravity == Gravity.CENTER_VERTICAL) 1846 return top + (viewht - layoutht) / 2; 1847 } 1848 } 1849 1850 /** 1851 * Returns the extended bottom padding of the view, including both the 1852 * bottom Drawable if any and any extra space to keep more than maxLines 1853 * of text from showing. It is only valid to call this after measuring. 1854 */ 1855 public int getExtendedPaddingBottom() { 1856 if (mMaxMode != LINES) { 1857 return getCompoundPaddingBottom(); 1858 } 1859 1860 if (mLayout.getLineCount() <= mMaximum) { 1861 return getCompoundPaddingBottom(); 1862 } 1863 1864 int top = getCompoundPaddingTop(); 1865 int bottom = getCompoundPaddingBottom(); 1866 int viewht = getHeight() - top - bottom; 1867 int layoutht = mLayout.getLineTop(mMaximum); 1868 1869 if (layoutht >= viewht) { 1870 return bottom; 1871 } 1872 1873 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1874 if (gravity == Gravity.TOP) { 1875 return bottom + viewht - layoutht; 1876 } else if (gravity == Gravity.BOTTOM) { 1877 return bottom; 1878 } else { // (gravity == Gravity.CENTER_VERTICAL) 1879 return bottom + (viewht - layoutht) / 2; 1880 } 1881 } 1882 1883 /** 1884 * Returns the total left padding of the view, including the left 1885 * Drawable if any. 1886 */ 1887 public int getTotalPaddingLeft() { 1888 return getCompoundPaddingLeft(); 1889 } 1890 1891 /** 1892 * Returns the total right padding of the view, including the right 1893 * Drawable if any. 1894 */ 1895 public int getTotalPaddingRight() { 1896 return getCompoundPaddingRight(); 1897 } 1898 1899 /** 1900 * Returns the total start padding of the view, including the start 1901 * Drawable if any. 1902 */ 1903 public int getTotalPaddingStart() { 1904 return getCompoundPaddingStart(); 1905 } 1906 1907 /** 1908 * Returns the total end padding of the view, including the end 1909 * Drawable if any. 1910 */ 1911 public int getTotalPaddingEnd() { 1912 return getCompoundPaddingEnd(); 1913 } 1914 1915 /** 1916 * Returns the total top padding of the view, including the top 1917 * Drawable if any, the extra space to keep more than maxLines 1918 * from showing, and the vertical offset for gravity, if any. 1919 */ 1920 public int getTotalPaddingTop() { 1921 return getExtendedPaddingTop() + getVerticalOffset(true); 1922 } 1923 1924 /** 1925 * Returns the total bottom padding of the view, including the bottom 1926 * Drawable if any, the extra space to keep more than maxLines 1927 * from showing, and the vertical offset for gravity, if any. 1928 */ 1929 public int getTotalPaddingBottom() { 1930 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1931 } 1932 1933 /** 1934 * Sets the Drawables (if any) to appear to the left of, above, 1935 * to the right of, and below the text. Use null if you do not 1936 * want a Drawable there. The Drawables must already have had 1937 * {@link Drawable#setBounds} called. 1938 * 1939 * @attr ref android.R.styleable#TextView_drawableLeft 1940 * @attr ref android.R.styleable#TextView_drawableTop 1941 * @attr ref android.R.styleable#TextView_drawableRight 1942 * @attr ref android.R.styleable#TextView_drawableBottom 1943 */ 1944 public void setCompoundDrawables(Drawable left, Drawable top, 1945 Drawable right, Drawable bottom) { 1946 Drawables dr = mDrawables; 1947 1948 final boolean drawables = left != null || top != null 1949 || right != null || bottom != null; 1950 1951 if (!drawables) { 1952 // Clearing drawables... can we free the data structure? 1953 if (dr != null) { 1954 if (dr.mDrawablePadding == 0) { 1955 mDrawables = null; 1956 } else { 1957 // We need to retain the last set padding, so just clear 1958 // out all of the fields in the existing structure. 1959 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1960 dr.mDrawableLeft = null; 1961 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1962 dr.mDrawableTop = null; 1963 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1964 dr.mDrawableRight = null; 1965 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1966 dr.mDrawableBottom = null; 1967 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1968 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1969 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1970 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1971 } 1972 } 1973 } else { 1974 if (dr == null) { 1975 mDrawables = dr = new Drawables(getContext()); 1976 } 1977 1978 mDrawables.mOverride = false; 1979 1980 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1981 dr.mDrawableLeft.setCallback(null); 1982 } 1983 dr.mDrawableLeft = left; 1984 1985 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1986 dr.mDrawableTop.setCallback(null); 1987 } 1988 dr.mDrawableTop = top; 1989 1990 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1991 dr.mDrawableRight.setCallback(null); 1992 } 1993 dr.mDrawableRight = right; 1994 1995 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1996 dr.mDrawableBottom.setCallback(null); 1997 } 1998 dr.mDrawableBottom = bottom; 1999 2000 final Rect compoundRect = dr.mCompoundRect; 2001 int[] state; 2002 2003 state = getDrawableState(); 2004 2005 if (left != null) { 2006 left.setState(state); 2007 left.copyBounds(compoundRect); 2008 left.setCallback(this); 2009 dr.mDrawableSizeLeft = compoundRect.width(); 2010 dr.mDrawableHeightLeft = compoundRect.height(); 2011 } else { 2012 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 2013 } 2014 2015 if (right != null) { 2016 right.setState(state); 2017 right.copyBounds(compoundRect); 2018 right.setCallback(this); 2019 dr.mDrawableSizeRight = compoundRect.width(); 2020 dr.mDrawableHeightRight = compoundRect.height(); 2021 } else { 2022 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 2023 } 2024 2025 if (top != null) { 2026 top.setState(state); 2027 top.copyBounds(compoundRect); 2028 top.setCallback(this); 2029 dr.mDrawableSizeTop = compoundRect.height(); 2030 dr.mDrawableWidthTop = compoundRect.width(); 2031 } else { 2032 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2033 } 2034 2035 if (bottom != null) { 2036 bottom.setState(state); 2037 bottom.copyBounds(compoundRect); 2038 bottom.setCallback(this); 2039 dr.mDrawableSizeBottom = compoundRect.height(); 2040 dr.mDrawableWidthBottom = compoundRect.width(); 2041 } else { 2042 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2043 } 2044 } 2045 2046 // Save initial left/right drawables 2047 if (dr != null) { 2048 dr.mDrawableLeftInitial = left; 2049 dr.mDrawableRightInitial = right; 2050 } 2051 2052 resetResolvedDrawables(); 2053 resolveDrawables(); 2054 invalidate(); 2055 requestLayout(); 2056 } 2057 2058 /** 2059 * Sets the Drawables (if any) to appear to the left of, above, 2060 * to the right of, and below the text. Use 0 if you do not 2061 * want a Drawable there. The Drawables' bounds will be set to 2062 * their intrinsic bounds. 2063 * 2064 * @param left Resource identifier of the left Drawable. 2065 * @param top Resource identifier of the top Drawable. 2066 * @param right Resource identifier of the right Drawable. 2067 * @param bottom Resource identifier of the bottom Drawable. 2068 * 2069 * @attr ref android.R.styleable#TextView_drawableLeft 2070 * @attr ref android.R.styleable#TextView_drawableTop 2071 * @attr ref android.R.styleable#TextView_drawableRight 2072 * @attr ref android.R.styleable#TextView_drawableBottom 2073 */ 2074 @android.view.RemotableViewMethod 2075 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 2076 final Resources resources = getContext().getResources(); 2077 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 2078 top != 0 ? resources.getDrawable(top) : null, 2079 right != 0 ? resources.getDrawable(right) : null, 2080 bottom != 0 ? resources.getDrawable(bottom) : null); 2081 } 2082 2083 /** 2084 * Sets the Drawables (if any) to appear to the left of, above, 2085 * to the right of, and below the text. Use null if you do not 2086 * want a Drawable there. The Drawables' bounds will be set to 2087 * their intrinsic bounds. 2088 * 2089 * @attr ref android.R.styleable#TextView_drawableLeft 2090 * @attr ref android.R.styleable#TextView_drawableTop 2091 * @attr ref android.R.styleable#TextView_drawableRight 2092 * @attr ref android.R.styleable#TextView_drawableBottom 2093 */ 2094 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 2095 Drawable right, Drawable bottom) { 2096 2097 if (left != null) { 2098 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 2099 } 2100 if (right != null) { 2101 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 2102 } 2103 if (top != null) { 2104 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 2105 } 2106 if (bottom != null) { 2107 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 2108 } 2109 setCompoundDrawables(left, top, right, bottom); 2110 } 2111 2112 /** 2113 * Sets the Drawables (if any) to appear to the start of, above, 2114 * to the end of, and below the text. Use null if you do not 2115 * want a Drawable there. The Drawables must already have had 2116 * {@link Drawable#setBounds} called. 2117 * 2118 * @attr ref android.R.styleable#TextView_drawableStart 2119 * @attr ref android.R.styleable#TextView_drawableTop 2120 * @attr ref android.R.styleable#TextView_drawableEnd 2121 * @attr ref android.R.styleable#TextView_drawableBottom 2122 */ 2123 public void setCompoundDrawablesRelative(Drawable start, Drawable top, 2124 Drawable end, Drawable bottom) { 2125 Drawables dr = mDrawables; 2126 2127 final boolean drawables = start != null || top != null 2128 || end != null || bottom != null; 2129 2130 if (!drawables) { 2131 // Clearing drawables... can we free the data structure? 2132 if (dr != null) { 2133 if (dr.mDrawablePadding == 0) { 2134 mDrawables = null; 2135 } else { 2136 // We need to retain the last set padding, so just clear 2137 // out all of the fields in the existing structure. 2138 if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null); 2139 dr.mDrawableStart = null; 2140 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 2141 dr.mDrawableTop = null; 2142 if (dr.mDrawableEnd != null) dr.mDrawableEnd.setCallback(null); 2143 dr.mDrawableEnd = null; 2144 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 2145 dr.mDrawableBottom = null; 2146 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 2147 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 2148 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2149 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2150 } 2151 } 2152 } else { 2153 if (dr == null) { 2154 mDrawables = dr = new Drawables(getContext()); 2155 } 2156 2157 mDrawables.mOverride = true; 2158 2159 if (dr.mDrawableStart != start && dr.mDrawableStart != null) { 2160 dr.mDrawableStart.setCallback(null); 2161 } 2162 dr.mDrawableStart = start; 2163 2164 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 2165 dr.mDrawableTop.setCallback(null); 2166 } 2167 dr.mDrawableTop = top; 2168 2169 if (dr.mDrawableEnd != end && dr.mDrawableEnd != null) { 2170 dr.mDrawableEnd.setCallback(null); 2171 } 2172 dr.mDrawableEnd = end; 2173 2174 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 2175 dr.mDrawableBottom.setCallback(null); 2176 } 2177 dr.mDrawableBottom = bottom; 2178 2179 final Rect compoundRect = dr.mCompoundRect; 2180 int[] state; 2181 2182 state = getDrawableState(); 2183 2184 if (start != null) { 2185 start.setState(state); 2186 start.copyBounds(compoundRect); 2187 start.setCallback(this); 2188 dr.mDrawableSizeStart = compoundRect.width(); 2189 dr.mDrawableHeightStart = compoundRect.height(); 2190 } else { 2191 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 2192 } 2193 2194 if (end != null) { 2195 end.setState(state); 2196 end.copyBounds(compoundRect); 2197 end.setCallback(this); 2198 dr.mDrawableSizeEnd = compoundRect.width(); 2199 dr.mDrawableHeightEnd = compoundRect.height(); 2200 } else { 2201 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 2202 } 2203 2204 if (top != null) { 2205 top.setState(state); 2206 top.copyBounds(compoundRect); 2207 top.setCallback(this); 2208 dr.mDrawableSizeTop = compoundRect.height(); 2209 dr.mDrawableWidthTop = compoundRect.width(); 2210 } else { 2211 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2212 } 2213 2214 if (bottom != null) { 2215 bottom.setState(state); 2216 bottom.copyBounds(compoundRect); 2217 bottom.setCallback(this); 2218 dr.mDrawableSizeBottom = compoundRect.height(); 2219 dr.mDrawableWidthBottom = compoundRect.width(); 2220 } else { 2221 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2222 } 2223 } 2224 2225 resetResolvedDrawables(); 2226 resolveDrawables(); 2227 invalidate(); 2228 requestLayout(); 2229 } 2230 2231 /** 2232 * Sets the Drawables (if any) to appear to the start of, above, 2233 * to the end of, and below the text. Use 0 if you do not 2234 * want a Drawable there. The Drawables' bounds will be set to 2235 * their intrinsic bounds. 2236 * 2237 * @param start Resource identifier of the start Drawable. 2238 * @param top Resource identifier of the top Drawable. 2239 * @param end Resource identifier of the end Drawable. 2240 * @param bottom Resource identifier of the bottom Drawable. 2241 * 2242 * @attr ref android.R.styleable#TextView_drawableStart 2243 * @attr ref android.R.styleable#TextView_drawableTop 2244 * @attr ref android.R.styleable#TextView_drawableEnd 2245 * @attr ref android.R.styleable#TextView_drawableBottom 2246 */ 2247 @android.view.RemotableViewMethod 2248 public void setCompoundDrawablesRelativeWithIntrinsicBounds(int start, int top, int end, 2249 int bottom) { 2250 final Resources resources = getContext().getResources(); 2251 setCompoundDrawablesRelativeWithIntrinsicBounds( 2252 start != 0 ? resources.getDrawable(start) : null, 2253 top != 0 ? resources.getDrawable(top) : null, 2254 end != 0 ? resources.getDrawable(end) : null, 2255 bottom != 0 ? resources.getDrawable(bottom) : null); 2256 } 2257 2258 /** 2259 * Sets the Drawables (if any) to appear to the start of, above, 2260 * to the end of, and below the text. Use null if you do not 2261 * want a Drawable there. The Drawables' bounds will be set to 2262 * their intrinsic bounds. 2263 * 2264 * @attr ref android.R.styleable#TextView_drawableStart 2265 * @attr ref android.R.styleable#TextView_drawableTop 2266 * @attr ref android.R.styleable#TextView_drawableEnd 2267 * @attr ref android.R.styleable#TextView_drawableBottom 2268 */ 2269 public void setCompoundDrawablesRelativeWithIntrinsicBounds(Drawable start, Drawable top, 2270 Drawable end, Drawable bottom) { 2271 2272 if (start != null) { 2273 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 2274 } 2275 if (end != null) { 2276 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 2277 } 2278 if (top != null) { 2279 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 2280 } 2281 if (bottom != null) { 2282 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 2283 } 2284 setCompoundDrawablesRelative(start, top, end, bottom); 2285 } 2286 2287 /** 2288 * Returns drawables for the left, top, right, and bottom borders. 2289 * 2290 * @attr ref android.R.styleable#TextView_drawableLeft 2291 * @attr ref android.R.styleable#TextView_drawableTop 2292 * @attr ref android.R.styleable#TextView_drawableRight 2293 * @attr ref android.R.styleable#TextView_drawableBottom 2294 */ 2295 public Drawable[] getCompoundDrawables() { 2296 final Drawables dr = mDrawables; 2297 if (dr != null) { 2298 return new Drawable[] { 2299 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 2300 }; 2301 } else { 2302 return new Drawable[] { null, null, null, null }; 2303 } 2304 } 2305 2306 /** 2307 * Returns drawables for the start, top, end, and bottom borders. 2308 * 2309 * @attr ref android.R.styleable#TextView_drawableStart 2310 * @attr ref android.R.styleable#TextView_drawableTop 2311 * @attr ref android.R.styleable#TextView_drawableEnd 2312 * @attr ref android.R.styleable#TextView_drawableBottom 2313 */ 2314 public Drawable[] getCompoundDrawablesRelative() { 2315 final Drawables dr = mDrawables; 2316 if (dr != null) { 2317 return new Drawable[] { 2318 dr.mDrawableStart, dr.mDrawableTop, dr.mDrawableEnd, dr.mDrawableBottom 2319 }; 2320 } else { 2321 return new Drawable[] { null, null, null, null }; 2322 } 2323 } 2324 2325 /** 2326 * Sets the size of the padding between the compound drawables and 2327 * the text. 2328 * 2329 * @attr ref android.R.styleable#TextView_drawablePadding 2330 */ 2331 @android.view.RemotableViewMethod 2332 public void setCompoundDrawablePadding(int pad) { 2333 Drawables dr = mDrawables; 2334 if (pad == 0) { 2335 if (dr != null) { 2336 dr.mDrawablePadding = pad; 2337 } 2338 } else { 2339 if (dr == null) { 2340 mDrawables = dr = new Drawables(getContext()); 2341 } 2342 dr.mDrawablePadding = pad; 2343 } 2344 2345 invalidate(); 2346 requestLayout(); 2347 } 2348 2349 /** 2350 * Returns the padding between the compound drawables and the text. 2351 * 2352 * @attr ref android.R.styleable#TextView_drawablePadding 2353 */ 2354 public int getCompoundDrawablePadding() { 2355 final Drawables dr = mDrawables; 2356 return dr != null ? dr.mDrawablePadding : 0; 2357 } 2358 2359 @Override 2360 public void setPadding(int left, int top, int right, int bottom) { 2361 if (left != mPaddingLeft || 2362 right != mPaddingRight || 2363 top != mPaddingTop || 2364 bottom != mPaddingBottom) { 2365 nullLayouts(); 2366 } 2367 2368 // the super call will requestLayout() 2369 super.setPadding(left, top, right, bottom); 2370 invalidate(); 2371 } 2372 2373 @Override 2374 public void setPaddingRelative(int start, int top, int end, int bottom) { 2375 if (start != getPaddingStart() || 2376 end != getPaddingEnd() || 2377 top != mPaddingTop || 2378 bottom != mPaddingBottom) { 2379 nullLayouts(); 2380 } 2381 2382 // the super call will requestLayout() 2383 super.setPaddingRelative(start, top, end, bottom); 2384 invalidate(); 2385 } 2386 2387 /** 2388 * Gets the autolink mask of the text. See {@link 2389 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2390 * possible values. 2391 * 2392 * @attr ref android.R.styleable#TextView_autoLink 2393 */ 2394 public final int getAutoLinkMask() { 2395 return mAutoLinkMask; 2396 } 2397 2398 /** 2399 * Sets the text color, size, style, hint color, and highlight color 2400 * from the specified TextAppearance resource. 2401 */ 2402 public void setTextAppearance(Context context, int resid) { 2403 TypedArray appearance = 2404 context.obtainStyledAttributes(resid, 2405 com.android.internal.R.styleable.TextAppearance); 2406 2407 int color; 2408 ColorStateList colors; 2409 int ts; 2410 2411 color = appearance.getColor( 2412 com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 2413 if (color != 0) { 2414 setHighlightColor(color); 2415 } 2416 2417 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2418 TextAppearance_textColor); 2419 if (colors != null) { 2420 setTextColor(colors); 2421 } 2422 2423 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 2424 TextAppearance_textSize, 0); 2425 if (ts != 0) { 2426 setRawTextSize(ts); 2427 } 2428 2429 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2430 TextAppearance_textColorHint); 2431 if (colors != null) { 2432 setHintTextColor(colors); 2433 } 2434 2435 colors = appearance.getColorStateList(com.android.internal.R.styleable. 2436 TextAppearance_textColorLink); 2437 if (colors != null) { 2438 setLinkTextColor(colors); 2439 } 2440 2441 String familyName; 2442 int typefaceIndex, styleIndex; 2443 2444 familyName = appearance.getString(com.android.internal.R.styleable. 2445 TextAppearance_fontFamily); 2446 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 2447 TextAppearance_typeface, -1); 2448 styleIndex = appearance.getInt(com.android.internal.R.styleable. 2449 TextAppearance_textStyle, -1); 2450 2451 setTypefaceFromAttrs(familyName, typefaceIndex, styleIndex); 2452 2453 final int shadowcolor = appearance.getInt( 2454 com.android.internal.R.styleable.TextAppearance_shadowColor, 0); 2455 if (shadowcolor != 0) { 2456 final float dx = appearance.getFloat( 2457 com.android.internal.R.styleable.TextAppearance_shadowDx, 0); 2458 final float dy = appearance.getFloat( 2459 com.android.internal.R.styleable.TextAppearance_shadowDy, 0); 2460 final float r = appearance.getFloat( 2461 com.android.internal.R.styleable.TextAppearance_shadowRadius, 0); 2462 2463 setShadowLayer(r, dx, dy, shadowcolor); 2464 } 2465 2466 if (appearance.getBoolean(com.android.internal.R.styleable.TextAppearance_textAllCaps, 2467 false)) { 2468 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 2469 } 2470 2471 appearance.recycle(); 2472 } 2473 2474 /** 2475 * Get the default {@link Locale} of the text in this TextView. 2476 * @return the default {@link Locale} of the text in this TextView. 2477 */ 2478 public Locale getTextLocale() { 2479 return mTextPaint.getTextLocale(); 2480 } 2481 2482 /** 2483 * Set the default {@link Locale} of the text in this TextView to the given value. This value 2484 * is used to choose appropriate typefaces for ambiguous characters. Typically used for CJK 2485 * locales to disambiguate Hanzi/Kanji/Hanja characters. 2486 * 2487 * @param locale the {@link Locale} for drawing text, must not be null. 2488 * 2489 * @see Paint#setTextLocale 2490 */ 2491 public void setTextLocale(Locale locale) { 2492 mTextPaint.setTextLocale(locale); 2493 } 2494 2495 /** 2496 * @return the size (in pixels) of the default text size in this TextView. 2497 */ 2498 @ViewDebug.ExportedProperty(category = "text") 2499 public float getTextSize() { 2500 return mTextPaint.getTextSize(); 2501 } 2502 2503 /** 2504 * Set the default text size to the given value, interpreted as "scaled 2505 * pixel" units. This size is adjusted based on the current density and 2506 * user font size preference. 2507 * 2508 * @param size The scaled pixel size. 2509 * 2510 * @attr ref android.R.styleable#TextView_textSize 2511 */ 2512 @android.view.RemotableViewMethod 2513 public void setTextSize(float size) { 2514 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 2515 } 2516 2517 /** 2518 * Set the default text size to a given unit and value. See {@link 2519 * TypedValue} for the possible dimension units. 2520 * 2521 * @param unit The desired dimension unit. 2522 * @param size The desired size in the given units. 2523 * 2524 * @attr ref android.R.styleable#TextView_textSize 2525 */ 2526 public void setTextSize(int unit, float size) { 2527 Context c = getContext(); 2528 Resources r; 2529 2530 if (c == null) 2531 r = Resources.getSystem(); 2532 else 2533 r = c.getResources(); 2534 2535 setRawTextSize(TypedValue.applyDimension( 2536 unit, size, r.getDisplayMetrics())); 2537 } 2538 2539 private void setRawTextSize(float size) { 2540 if (size != mTextPaint.getTextSize()) { 2541 mTextPaint.setTextSize(size); 2542 2543 if (mLayout != null) { 2544 nullLayouts(); 2545 requestLayout(); 2546 invalidate(); 2547 } 2548 } 2549 } 2550 2551 /** 2552 * @return the extent by which text is currently being stretched 2553 * horizontally. This will usually be 1. 2554 */ 2555 public float getTextScaleX() { 2556 return mTextPaint.getTextScaleX(); 2557 } 2558 2559 /** 2560 * Sets the extent by which text should be stretched horizontally. 2561 * 2562 * @attr ref android.R.styleable#TextView_textScaleX 2563 */ 2564 @android.view.RemotableViewMethod 2565 public void setTextScaleX(float size) { 2566 if (size != mTextPaint.getTextScaleX()) { 2567 mUserSetTextScaleX = true; 2568 mTextPaint.setTextScaleX(size); 2569 2570 if (mLayout != null) { 2571 nullLayouts(); 2572 requestLayout(); 2573 invalidate(); 2574 } 2575 } 2576 } 2577 2578 /** 2579 * Sets the typeface and style in which the text should be displayed. 2580 * Note that not all Typeface families actually have bold and italic 2581 * variants, so you may need to use 2582 * {@link #setTypeface(Typeface, int)} to get the appearance 2583 * that you actually want. 2584 * 2585 * @see #getTypeface() 2586 * 2587 * @attr ref android.R.styleable#TextView_fontFamily 2588 * @attr ref android.R.styleable#TextView_typeface 2589 * @attr ref android.R.styleable#TextView_textStyle 2590 */ 2591 public void setTypeface(Typeface tf) { 2592 if (mTextPaint.getTypeface() != tf) { 2593 mTextPaint.setTypeface(tf); 2594 2595 if (mLayout != null) { 2596 nullLayouts(); 2597 requestLayout(); 2598 invalidate(); 2599 } 2600 } 2601 } 2602 2603 /** 2604 * @return the current typeface and style in which the text is being 2605 * displayed. 2606 * 2607 * @see #setTypeface(Typeface) 2608 * 2609 * @attr ref android.R.styleable#TextView_fontFamily 2610 * @attr ref android.R.styleable#TextView_typeface 2611 * @attr ref android.R.styleable#TextView_textStyle 2612 */ 2613 public Typeface getTypeface() { 2614 return mTextPaint.getTypeface(); 2615 } 2616 2617 /** 2618 * Sets the text color for all the states (normal, selected, 2619 * focused) to be this color. 2620 * 2621 * @see #setTextColor(ColorStateList) 2622 * @see #getTextColors() 2623 * 2624 * @attr ref android.R.styleable#TextView_textColor 2625 */ 2626 @android.view.RemotableViewMethod 2627 public void setTextColor(int color) { 2628 mTextColor = ColorStateList.valueOf(color); 2629 updateTextColors(); 2630 } 2631 2632 /** 2633 * Sets the text color. 2634 * 2635 * @see #setTextColor(int) 2636 * @see #getTextColors() 2637 * @see #setHintTextColor(ColorStateList) 2638 * @see #setLinkTextColor(ColorStateList) 2639 * 2640 * @attr ref android.R.styleable#TextView_textColor 2641 */ 2642 public void setTextColor(ColorStateList colors) { 2643 if (colors == null) { 2644 throw new NullPointerException(); 2645 } 2646 2647 mTextColor = colors; 2648 updateTextColors(); 2649 } 2650 2651 /** 2652 * Gets the text colors for the different states (normal, selected, focused) of the TextView. 2653 * 2654 * @see #setTextColor(ColorStateList) 2655 * @see #setTextColor(int) 2656 * 2657 * @attr ref android.R.styleable#TextView_textColor 2658 */ 2659 public final ColorStateList getTextColors() { 2660 return mTextColor; 2661 } 2662 2663 /** 2664 * <p>Return the current color selected for normal text.</p> 2665 * 2666 * @return Returns the current text color. 2667 */ 2668 public final int getCurrentTextColor() { 2669 return mCurTextColor; 2670 } 2671 2672 /** 2673 * Sets the color used to display the selection highlight. 2674 * 2675 * @attr ref android.R.styleable#TextView_textColorHighlight 2676 */ 2677 @android.view.RemotableViewMethod 2678 public void setHighlightColor(int color) { 2679 if (mHighlightColor != color) { 2680 mHighlightColor = color; 2681 invalidate(); 2682 } 2683 } 2684 2685 /** 2686 * @return the color used to display the selection highlight 2687 * 2688 * @see #setHighlightColor(int) 2689 * 2690 * @attr ref android.R.styleable#TextView_textColorHighlight 2691 */ 2692 public int getHighlightColor() { 2693 return mHighlightColor; 2694 } 2695 2696 /** 2697 * Sets whether the soft input method will be made visible when this 2698 * TextView gets focused. The default is true. 2699 * @hide 2700 */ 2701 @android.view.RemotableViewMethod 2702 public final void setShowSoftInputOnFocus(boolean show) { 2703 createEditorIfNeeded(); 2704 mEditor.mShowSoftInputOnFocus = show; 2705 } 2706 2707 /** 2708 * Returns whether the soft input method will be made visible when this 2709 * TextView gets focused. The default is true. 2710 * @hide 2711 */ 2712 public final boolean getShowSoftInputOnFocus() { 2713 // When there is no Editor, return default true value 2714 return mEditor == null || mEditor.mShowSoftInputOnFocus; 2715 } 2716 2717 /** 2718 * Gives the text a shadow of the specified radius and color, the specified 2719 * distance from its normal position. 2720 * 2721 * @attr ref android.R.styleable#TextView_shadowColor 2722 * @attr ref android.R.styleable#TextView_shadowDx 2723 * @attr ref android.R.styleable#TextView_shadowDy 2724 * @attr ref android.R.styleable#TextView_shadowRadius 2725 */ 2726 public void setShadowLayer(float radius, float dx, float dy, int color) { 2727 mTextPaint.setShadowLayer(radius, dx, dy, color); 2728 2729 mShadowRadius = radius; 2730 mShadowDx = dx; 2731 mShadowDy = dy; 2732 2733 // Will change text clip region 2734 if (mEditor != null) mEditor.invalidateTextDisplayList(); 2735 invalidate(); 2736 } 2737 2738 /** 2739 * Gets the radius of the shadow layer. 2740 * 2741 * @return the radius of the shadow layer. If 0, the shadow layer is not visible 2742 * 2743 * @see #setShadowLayer(float, float, float, int) 2744 * 2745 * @attr ref android.R.styleable#TextView_shadowRadius 2746 */ 2747 public float getShadowRadius() { 2748 return mShadowRadius; 2749 } 2750 2751 /** 2752 * @return the horizontal offset of the shadow layer 2753 * 2754 * @see #setShadowLayer(float, float, float, int) 2755 * 2756 * @attr ref android.R.styleable#TextView_shadowDx 2757 */ 2758 public float getShadowDx() { 2759 return mShadowDx; 2760 } 2761 2762 /** 2763 * @return the vertical offset of the shadow layer 2764 * 2765 * @see #setShadowLayer(float, float, float, int) 2766 * 2767 * @attr ref android.R.styleable#TextView_shadowDy 2768 */ 2769 public float getShadowDy() { 2770 return mShadowDy; 2771 } 2772 2773 /** 2774 * @return the color of the shadow layer 2775 * 2776 * @see #setShadowLayer(float, float, float, int) 2777 * 2778 * @attr ref android.R.styleable#TextView_shadowColor 2779 */ 2780 public int getShadowColor() { 2781 return mTextPaint.shadowColor; 2782 } 2783 2784 /** 2785 * @return the base paint used for the text. Please use this only to 2786 * consult the Paint's properties and not to change them. 2787 */ 2788 public TextPaint getPaint() { 2789 return mTextPaint; 2790 } 2791 2792 /** 2793 * Sets the autolink mask of the text. See {@link 2794 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 2795 * possible values. 2796 * 2797 * @attr ref android.R.styleable#TextView_autoLink 2798 */ 2799 @android.view.RemotableViewMethod 2800 public final void setAutoLinkMask(int mask) { 2801 mAutoLinkMask = mask; 2802 } 2803 2804 /** 2805 * Sets whether the movement method will automatically be set to 2806 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2807 * set to nonzero and links are detected in {@link #setText}. 2808 * The default is true. 2809 * 2810 * @attr ref android.R.styleable#TextView_linksClickable 2811 */ 2812 @android.view.RemotableViewMethod 2813 public final void setLinksClickable(boolean whether) { 2814 mLinksClickable = whether; 2815 } 2816 2817 /** 2818 * Returns whether the movement method will automatically be set to 2819 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 2820 * set to nonzero and links are detected in {@link #setText}. 2821 * The default is true. 2822 * 2823 * @attr ref android.R.styleable#TextView_linksClickable 2824 */ 2825 public final boolean getLinksClickable() { 2826 return mLinksClickable; 2827 } 2828 2829 /** 2830 * Returns the list of URLSpans attached to the text 2831 * (by {@link Linkify} or otherwise) if any. You can call 2832 * {@link URLSpan#getURL} on them to find where they link to 2833 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 2834 * to find the region of the text they are attached to. 2835 */ 2836 public URLSpan[] getUrls() { 2837 if (mText instanceof Spanned) { 2838 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 2839 } else { 2840 return new URLSpan[0]; 2841 } 2842 } 2843 2844 /** 2845 * Sets the color of the hint text for all the states (disabled, focussed, selected...) of this 2846 * TextView. 2847 * 2848 * @see #setHintTextColor(ColorStateList) 2849 * @see #getHintTextColors() 2850 * @see #setTextColor(int) 2851 * 2852 * @attr ref android.R.styleable#TextView_textColorHint 2853 */ 2854 @android.view.RemotableViewMethod 2855 public final void setHintTextColor(int color) { 2856 mHintTextColor = ColorStateList.valueOf(color); 2857 updateTextColors(); 2858 } 2859 2860 /** 2861 * Sets the color of the hint text. 2862 * 2863 * @see #getHintTextColors() 2864 * @see #setHintTextColor(int) 2865 * @see #setTextColor(ColorStateList) 2866 * @see #setLinkTextColor(ColorStateList) 2867 * 2868 * @attr ref android.R.styleable#TextView_textColorHint 2869 */ 2870 public final void setHintTextColor(ColorStateList colors) { 2871 mHintTextColor = colors; 2872 updateTextColors(); 2873 } 2874 2875 /** 2876 * @return the color of the hint text, for the different states of this TextView. 2877 * 2878 * @see #setHintTextColor(ColorStateList) 2879 * @see #setHintTextColor(int) 2880 * @see #setTextColor(ColorStateList) 2881 * @see #setLinkTextColor(ColorStateList) 2882 * 2883 * @attr ref android.R.styleable#TextView_textColorHint 2884 */ 2885 public final ColorStateList getHintTextColors() { 2886 return mHintTextColor; 2887 } 2888 2889 /** 2890 * <p>Return the current color selected to paint the hint text.</p> 2891 * 2892 * @return Returns the current hint text color. 2893 */ 2894 public final int getCurrentHintTextColor() { 2895 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 2896 } 2897 2898 /** 2899 * Sets the color of links in the text. 2900 * 2901 * @see #setLinkTextColor(ColorStateList) 2902 * @see #getLinkTextColors() 2903 * 2904 * @attr ref android.R.styleable#TextView_textColorLink 2905 */ 2906 @android.view.RemotableViewMethod 2907 public final void setLinkTextColor(int color) { 2908 mLinkTextColor = ColorStateList.valueOf(color); 2909 updateTextColors(); 2910 } 2911 2912 /** 2913 * Sets the color of links in the text. 2914 * 2915 * @see #setLinkTextColor(int) 2916 * @see #getLinkTextColors() 2917 * @see #setTextColor(ColorStateList) 2918 * @see #setHintTextColor(ColorStateList) 2919 * 2920 * @attr ref android.R.styleable#TextView_textColorLink 2921 */ 2922 public final void setLinkTextColor(ColorStateList colors) { 2923 mLinkTextColor = colors; 2924 updateTextColors(); 2925 } 2926 2927 /** 2928 * @return the list of colors used to paint the links in the text, for the different states of 2929 * this TextView 2930 * 2931 * @see #setLinkTextColor(ColorStateList) 2932 * @see #setLinkTextColor(int) 2933 * 2934 * @attr ref android.R.styleable#TextView_textColorLink 2935 */ 2936 public final ColorStateList getLinkTextColors() { 2937 return mLinkTextColor; 2938 } 2939 2940 /** 2941 * Sets the horizontal alignment of the text and the 2942 * vertical gravity that will be used when there is extra space 2943 * in the TextView beyond what is required for the text itself. 2944 * 2945 * @see android.view.Gravity 2946 * @attr ref android.R.styleable#TextView_gravity 2947 */ 2948 public void setGravity(int gravity) { 2949 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 2950 gravity |= Gravity.START; 2951 } 2952 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2953 gravity |= Gravity.TOP; 2954 } 2955 2956 boolean newLayout = false; 2957 2958 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) != 2959 (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK)) { 2960 newLayout = true; 2961 } 2962 2963 if (gravity != mGravity) { 2964 invalidate(); 2965 } 2966 2967 mGravity = gravity; 2968 2969 if (mLayout != null && newLayout) { 2970 // XXX this is heavy-handed because no actual content changes. 2971 int want = mLayout.getWidth(); 2972 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2973 2974 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2975 mRight - mLeft - getCompoundPaddingLeft() - 2976 getCompoundPaddingRight(), true); 2977 } 2978 } 2979 2980 /** 2981 * Returns the horizontal and vertical alignment of this TextView. 2982 * 2983 * @see android.view.Gravity 2984 * @attr ref android.R.styleable#TextView_gravity 2985 */ 2986 public int getGravity() { 2987 return mGravity; 2988 } 2989 2990 /** 2991 * @return the flags on the Paint being used to display the text. 2992 * @see Paint#getFlags 2993 */ 2994 public int getPaintFlags() { 2995 return mTextPaint.getFlags(); 2996 } 2997 2998 /** 2999 * Sets flags on the Paint being used to display the text and 3000 * reflows the text if they are different from the old flags. 3001 * @see Paint#setFlags 3002 */ 3003 @android.view.RemotableViewMethod 3004 public void setPaintFlags(int flags) { 3005 if (mTextPaint.getFlags() != flags) { 3006 mTextPaint.setFlags(flags); 3007 3008 if (mLayout != null) { 3009 nullLayouts(); 3010 requestLayout(); 3011 invalidate(); 3012 } 3013 } 3014 } 3015 3016 /** 3017 * Sets whether the text should be allowed to be wider than the 3018 * View is. If false, it will be wrapped to the width of the View. 3019 * 3020 * @attr ref android.R.styleable#TextView_scrollHorizontally 3021 */ 3022 public void setHorizontallyScrolling(boolean whether) { 3023 if (mHorizontallyScrolling != whether) { 3024 mHorizontallyScrolling = whether; 3025 3026 if (mLayout != null) { 3027 nullLayouts(); 3028 requestLayout(); 3029 invalidate(); 3030 } 3031 } 3032 } 3033 3034 /** 3035 * Returns whether the text is allowed to be wider than the View is. 3036 * If false, the text will be wrapped to the width of the View. 3037 * 3038 * @attr ref android.R.styleable#TextView_scrollHorizontally 3039 * @hide 3040 */ 3041 public boolean getHorizontallyScrolling() { 3042 return mHorizontallyScrolling; 3043 } 3044 3045 /** 3046 * Makes the TextView at least this many lines tall. 3047 * 3048 * Setting this value overrides any other (minimum) height setting. A single line TextView will 3049 * set this value to 1. 3050 * 3051 * @see #getMinLines() 3052 * 3053 * @attr ref android.R.styleable#TextView_minLines 3054 */ 3055 @android.view.RemotableViewMethod 3056 public void setMinLines(int minlines) { 3057 mMinimum = minlines; 3058 mMinMode = LINES; 3059 3060 requestLayout(); 3061 invalidate(); 3062 } 3063 3064 /** 3065 * @return the minimum number of lines displayed in this TextView, or -1 if the minimum 3066 * height was set in pixels instead using {@link #setMinHeight(int) or #setHeight(int)}. 3067 * 3068 * @see #setMinLines(int) 3069 * 3070 * @attr ref android.R.styleable#TextView_minLines 3071 */ 3072 public int getMinLines() { 3073 return mMinMode == LINES ? mMinimum : -1; 3074 } 3075 3076 /** 3077 * Makes the TextView at least this many pixels tall. 3078 * 3079 * Setting this value overrides any other (minimum) number of lines setting. 3080 * 3081 * @attr ref android.R.styleable#TextView_minHeight 3082 */ 3083 @android.view.RemotableViewMethod 3084 public void setMinHeight(int minHeight) { 3085 mMinimum = minHeight; 3086 mMinMode = PIXELS; 3087 3088 requestLayout(); 3089 invalidate(); 3090 } 3091 3092 /** 3093 * @return the minimum height of this TextView expressed in pixels, or -1 if the minimum 3094 * height was set in number of lines instead using {@link #setMinLines(int) or #setLines(int)}. 3095 * 3096 * @see #setMinHeight(int) 3097 * 3098 * @attr ref android.R.styleable#TextView_minHeight 3099 */ 3100 public int getMinHeight() { 3101 return mMinMode == PIXELS ? mMinimum : -1; 3102 } 3103 3104 /** 3105 * Makes the TextView at most this many lines tall. 3106 * 3107 * Setting this value overrides any other (maximum) height setting. 3108 * 3109 * @attr ref android.R.styleable#TextView_maxLines 3110 */ 3111 @android.view.RemotableViewMethod 3112 public void setMaxLines(int maxlines) { 3113 mMaximum = maxlines; 3114 mMaxMode = LINES; 3115 3116 requestLayout(); 3117 invalidate(); 3118 } 3119 3120 /** 3121 * @return the maximum number of lines displayed in this TextView, or -1 if the maximum 3122 * height was set in pixels instead using {@link #setMaxHeight(int) or #setHeight(int)}. 3123 * 3124 * @see #setMaxLines(int) 3125 * 3126 * @attr ref android.R.styleable#TextView_maxLines 3127 */ 3128 public int getMaxLines() { 3129 return mMaxMode == LINES ? mMaximum : -1; 3130 } 3131 3132 /** 3133 * Makes the TextView at most this many pixels tall. This option is mutually exclusive with the 3134 * {@link #setMaxLines(int)} method. 3135 * 3136 * Setting this value overrides any other (maximum) number of lines setting. 3137 * 3138 * @attr ref android.R.styleable#TextView_maxHeight 3139 */ 3140 @android.view.RemotableViewMethod 3141 public void setMaxHeight(int maxHeight) { 3142 mMaximum = maxHeight; 3143 mMaxMode = PIXELS; 3144 3145 requestLayout(); 3146 invalidate(); 3147 } 3148 3149 /** 3150 * @return the maximum height of this TextView expressed in pixels, or -1 if the maximum 3151 * height was set in number of lines instead using {@link #setMaxLines(int) or #setLines(int)}. 3152 * 3153 * @see #setMaxHeight(int) 3154 * 3155 * @attr ref android.R.styleable#TextView_maxHeight 3156 */ 3157 public int getMaxHeight() { 3158 return mMaxMode == PIXELS ? mMaximum : -1; 3159 } 3160 3161 /** 3162 * Makes the TextView exactly this many lines tall. 3163 * 3164 * Note that setting this value overrides any other (minimum / maximum) number of lines or 3165 * height setting. A single line TextView will set this value to 1. 3166 * 3167 * @attr ref android.R.styleable#TextView_lines 3168 */ 3169 @android.view.RemotableViewMethod 3170 public void setLines(int lines) { 3171 mMaximum = mMinimum = lines; 3172 mMaxMode = mMinMode = LINES; 3173 3174 requestLayout(); 3175 invalidate(); 3176 } 3177 3178 /** 3179 * Makes the TextView exactly this many pixels tall. 3180 * You could do the same thing by specifying this number in the 3181 * LayoutParams. 3182 * 3183 * Note that setting this value overrides any other (minimum / maximum) number of lines or 3184 * height setting. 3185 * 3186 * @attr ref android.R.styleable#TextView_height 3187 */ 3188 @android.view.RemotableViewMethod 3189 public void setHeight(int pixels) { 3190 mMaximum = mMinimum = pixels; 3191 mMaxMode = mMinMode = PIXELS; 3192 3193 requestLayout(); 3194 invalidate(); 3195 } 3196 3197 /** 3198 * Makes the TextView at least this many ems wide 3199 * 3200 * @attr ref android.R.styleable#TextView_minEms 3201 */ 3202 @android.view.RemotableViewMethod 3203 public void setMinEms(int minems) { 3204 mMinWidth = minems; 3205 mMinWidthMode = EMS; 3206 3207 requestLayout(); 3208 invalidate(); 3209 } 3210 3211 /** 3212 * @return the minimum width of the TextView, expressed in ems or -1 if the minimum width 3213 * was set in pixels instead (using {@link #setMinWidth(int)} or {@link #setWidth(int)}). 3214 * 3215 * @see #setMinEms(int) 3216 * @see #setEms(int) 3217 * 3218 * @attr ref android.R.styleable#TextView_minEms 3219 */ 3220 public int getMinEms() { 3221 return mMinWidthMode == EMS ? mMinWidth : -1; 3222 } 3223 3224 /** 3225 * Makes the TextView at least this many pixels wide 3226 * 3227 * @attr ref android.R.styleable#TextView_minWidth 3228 */ 3229 @android.view.RemotableViewMethod 3230 public void setMinWidth(int minpixels) { 3231 mMinWidth = minpixels; 3232 mMinWidthMode = PIXELS; 3233 3234 requestLayout(); 3235 invalidate(); 3236 } 3237 3238 /** 3239 * @return the minimum width of the TextView, in pixels or -1 if the minimum width 3240 * was set in ems instead (using {@link #setMinEms(int)} or {@link #setEms(int)}). 3241 * 3242 * @see #setMinWidth(int) 3243 * @see #setWidth(int) 3244 * 3245 * @attr ref android.R.styleable#TextView_minWidth 3246 */ 3247 public int getMinWidth() { 3248 return mMinWidthMode == PIXELS ? mMinWidth : -1; 3249 } 3250 3251 /** 3252 * Makes the TextView at most this many ems wide 3253 * 3254 * @attr ref android.R.styleable#TextView_maxEms 3255 */ 3256 @android.view.RemotableViewMethod 3257 public void setMaxEms(int maxems) { 3258 mMaxWidth = maxems; 3259 mMaxWidthMode = EMS; 3260 3261 requestLayout(); 3262 invalidate(); 3263 } 3264 3265 /** 3266 * @return the maximum width of the TextView, expressed in ems or -1 if the maximum width 3267 * was set in pixels instead (using {@link #setMaxWidth(int)} or {@link #setWidth(int)}). 3268 * 3269 * @see #setMaxEms(int) 3270 * @see #setEms(int) 3271 * 3272 * @attr ref android.R.styleable#TextView_maxEms 3273 */ 3274 public int getMaxEms() { 3275 return mMaxWidthMode == EMS ? mMaxWidth : -1; 3276 } 3277 3278 /** 3279 * Makes the TextView at most this many pixels wide 3280 * 3281 * @attr ref android.R.styleable#TextView_maxWidth 3282 */ 3283 @android.view.RemotableViewMethod 3284 public void setMaxWidth(int maxpixels) { 3285 mMaxWidth = maxpixels; 3286 mMaxWidthMode = PIXELS; 3287 3288 requestLayout(); 3289 invalidate(); 3290 } 3291 3292 /** 3293 * @return the maximum width of the TextView, in pixels or -1 if the maximum width 3294 * was set in ems instead (using {@link #setMaxEms(int)} or {@link #setEms(int)}). 3295 * 3296 * @see #setMaxWidth(int) 3297 * @see #setWidth(int) 3298 * 3299 * @attr ref android.R.styleable#TextView_maxWidth 3300 */ 3301 public int getMaxWidth() { 3302 return mMaxWidthMode == PIXELS ? mMaxWidth : -1; 3303 } 3304 3305 /** 3306 * Makes the TextView exactly this many ems wide 3307 * 3308 * @see #setMaxEms(int) 3309 * @see #setMinEms(int) 3310 * @see #getMinEms() 3311 * @see #getMaxEms() 3312 * 3313 * @attr ref android.R.styleable#TextView_ems 3314 */ 3315 @android.view.RemotableViewMethod 3316 public void setEms(int ems) { 3317 mMaxWidth = mMinWidth = ems; 3318 mMaxWidthMode = mMinWidthMode = EMS; 3319 3320 requestLayout(); 3321 invalidate(); 3322 } 3323 3324 /** 3325 * Makes the TextView exactly this many pixels wide. 3326 * You could do the same thing by specifying this number in the 3327 * LayoutParams. 3328 * 3329 * @see #setMaxWidth(int) 3330 * @see #setMinWidth(int) 3331 * @see #getMinWidth() 3332 * @see #getMaxWidth() 3333 * 3334 * @attr ref android.R.styleable#TextView_width 3335 */ 3336 @android.view.RemotableViewMethod 3337 public void setWidth(int pixels) { 3338 mMaxWidth = mMinWidth = pixels; 3339 mMaxWidthMode = mMinWidthMode = PIXELS; 3340 3341 requestLayout(); 3342 invalidate(); 3343 } 3344 3345 /** 3346 * Sets line spacing for this TextView. Each line will have its height 3347 * multiplied by <code>mult</code> and have <code>add</code> added to it. 3348 * 3349 * @attr ref android.R.styleable#TextView_lineSpacingExtra 3350 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 3351 */ 3352 public void setLineSpacing(float add, float mult) { 3353 if (mSpacingAdd != add || mSpacingMult != mult) { 3354 mSpacingAdd = add; 3355 mSpacingMult = mult; 3356 3357 if (mLayout != null) { 3358 nullLayouts(); 3359 requestLayout(); 3360 invalidate(); 3361 } 3362 } 3363 } 3364 3365 /** 3366 * Gets the line spacing multiplier 3367 * 3368 * @return the value by which each line's height is multiplied to get its actual height. 3369 * 3370 * @see #setLineSpacing(float, float) 3371 * @see #getLineSpacingExtra() 3372 * 3373 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 3374 */ 3375 public float getLineSpacingMultiplier() { 3376 return mSpacingMult; 3377 } 3378 3379 /** 3380 * Gets the line spacing extra space 3381 * 3382 * @return the extra space that is added to the height of each lines of this TextView. 3383 * 3384 * @see #setLineSpacing(float, float) 3385 * @see #getLineSpacingMultiplier() 3386 * 3387 * @attr ref android.R.styleable#TextView_lineSpacingExtra 3388 */ 3389 public float getLineSpacingExtra() { 3390 return mSpacingAdd; 3391 } 3392 3393 /** 3394 * Convenience method: Append the specified text to the TextView's 3395 * display buffer, upgrading it to BufferType.EDITABLE if it was 3396 * not already editable. 3397 */ 3398 public final void append(CharSequence text) { 3399 append(text, 0, text.length()); 3400 } 3401 3402 /** 3403 * Convenience method: Append the specified text slice to the TextView's 3404 * display buffer, upgrading it to BufferType.EDITABLE if it was 3405 * not already editable. 3406 */ 3407 public void append(CharSequence text, int start, int end) { 3408 if (!(mText instanceof Editable)) { 3409 setText(mText, BufferType.EDITABLE); 3410 } 3411 3412 ((Editable) mText).append(text, start, end); 3413 } 3414 3415 private void updateTextColors() { 3416 boolean inval = false; 3417 int color = mTextColor.getColorForState(getDrawableState(), 0); 3418 if (color != mCurTextColor) { 3419 mCurTextColor = color; 3420 inval = true; 3421 } 3422 if (mLinkTextColor != null) { 3423 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 3424 if (color != mTextPaint.linkColor) { 3425 mTextPaint.linkColor = color; 3426 inval = true; 3427 } 3428 } 3429 if (mHintTextColor != null) { 3430 color = mHintTextColor.getColorForState(getDrawableState(), 0); 3431 if (color != mCurHintTextColor && mText.length() == 0) { 3432 mCurHintTextColor = color; 3433 inval = true; 3434 } 3435 } 3436 if (inval) { 3437 // Text needs to be redrawn with the new color 3438 if (mEditor != null) mEditor.invalidateTextDisplayList(); 3439 invalidate(); 3440 } 3441 } 3442 3443 @Override 3444 protected void drawableStateChanged() { 3445 super.drawableStateChanged(); 3446 if (mTextColor != null && mTextColor.isStateful() 3447 || (mHintTextColor != null && mHintTextColor.isStateful()) 3448 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 3449 updateTextColors(); 3450 } 3451 3452 final Drawables dr = mDrawables; 3453 if (dr != null) { 3454 int[] state = getDrawableState(); 3455 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 3456 dr.mDrawableTop.setState(state); 3457 } 3458 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 3459 dr.mDrawableBottom.setState(state); 3460 } 3461 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 3462 dr.mDrawableLeft.setState(state); 3463 } 3464 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 3465 dr.mDrawableRight.setState(state); 3466 } 3467 if (dr.mDrawableStart != null && dr.mDrawableStart.isStateful()) { 3468 dr.mDrawableStart.setState(state); 3469 } 3470 if (dr.mDrawableEnd != null && dr.mDrawableEnd.isStateful()) { 3471 dr.mDrawableEnd.setState(state); 3472 } 3473 } 3474 } 3475 3476 @Override 3477 public Parcelable onSaveInstanceState() { 3478 Parcelable superState = super.onSaveInstanceState(); 3479 3480 // Save state if we are forced to 3481 boolean save = mFreezesText; 3482 int start = 0; 3483 int end = 0; 3484 3485 if (mText != null) { 3486 start = getSelectionStart(); 3487 end = getSelectionEnd(); 3488 if (start >= 0 || end >= 0) { 3489 // Or save state if there is a selection 3490 save = true; 3491 } 3492 } 3493 3494 if (save) { 3495 SavedState ss = new SavedState(superState); 3496 // XXX Should also save the current scroll position! 3497 ss.selStart = start; 3498 ss.selEnd = end; 3499 3500 if (mText instanceof Spanned) { 3501 Spannable sp = new SpannableStringBuilder(mText); 3502 3503 if (mEditor != null) { 3504 removeMisspelledSpans(sp); 3505 sp.removeSpan(mEditor.mSuggestionRangeSpan); 3506 } 3507 3508 ss.text = sp; 3509 } else { 3510 ss.text = mText.toString(); 3511 } 3512 3513 if (isFocused() && start >= 0 && end >= 0) { 3514 ss.frozenWithFocus = true; 3515 } 3516 3517 ss.error = getError(); 3518 3519 return ss; 3520 } 3521 3522 return superState; 3523 } 3524 3525 void removeMisspelledSpans(Spannable spannable) { 3526 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, spannable.length(), 3527 SuggestionSpan.class); 3528 for (int i = 0; i < suggestionSpans.length; i++) { 3529 int flags = suggestionSpans[i].getFlags(); 3530 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 3531 && (flags & SuggestionSpan.FLAG_MISSPELLED) != 0) { 3532 spannable.removeSpan(suggestionSpans[i]); 3533 } 3534 } 3535 } 3536 3537 @Override 3538 public void onRestoreInstanceState(Parcelable state) { 3539 if (!(state instanceof SavedState)) { 3540 super.onRestoreInstanceState(state); 3541 return; 3542 } 3543 3544 SavedState ss = (SavedState)state; 3545 super.onRestoreInstanceState(ss.getSuperState()); 3546 3547 // XXX restore buffer type too, as well as lots of other stuff 3548 if (ss.text != null) { 3549 setText(ss.text); 3550 } 3551 3552 if (ss.selStart >= 0 && ss.selEnd >= 0) { 3553 if (mText instanceof Spannable) { 3554 int len = mText.length(); 3555 3556 if (ss.selStart > len || ss.selEnd > len) { 3557 String restored = ""; 3558 3559 if (ss.text != null) { 3560 restored = "(restored) "; 3561 } 3562 3563 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 3564 "/" + ss.selEnd + " out of range for " + restored + 3565 "text " + mText); 3566 } else { 3567 Selection.setSelection((Spannable) mText, ss.selStart, ss.selEnd); 3568 3569 if (ss.frozenWithFocus) { 3570 createEditorIfNeeded(); 3571 mEditor.mFrozenWithFocus = true; 3572 } 3573 } 3574 } 3575 } 3576 3577 if (ss.error != null) { 3578 final CharSequence error = ss.error; 3579 // Display the error later, after the first layout pass 3580 post(new Runnable() { 3581 public void run() { 3582 setError(error); 3583 } 3584 }); 3585 } 3586 } 3587 3588 /** 3589 * Control whether this text view saves its entire text contents when 3590 * freezing to an icicle, in addition to dynamic state such as cursor 3591 * position. By default this is false, not saving the text. Set to true 3592 * if the text in the text view is not being saved somewhere else in 3593 * persistent storage (such as in a content provider) so that if the 3594 * view is later thawed the user will not lose their data. 3595 * 3596 * @param freezesText Controls whether a frozen icicle should include the 3597 * entire text data: true to include it, false to not. 3598 * 3599 * @attr ref android.R.styleable#TextView_freezesText 3600 */ 3601 @android.view.RemotableViewMethod 3602 public void setFreezesText(boolean freezesText) { 3603 mFreezesText = freezesText; 3604 } 3605 3606 /** 3607 * Return whether this text view is including its entire text contents 3608 * in frozen icicles. 3609 * 3610 * @return Returns true if text is included, false if it isn't. 3611 * 3612 * @see #setFreezesText 3613 */ 3614 public boolean getFreezesText() { 3615 return mFreezesText; 3616 } 3617 3618 /////////////////////////////////////////////////////////////////////////// 3619 3620 /** 3621 * Sets the Factory used to create new Editables. 3622 */ 3623 public final void setEditableFactory(Editable.Factory factory) { 3624 mEditableFactory = factory; 3625 setText(mText); 3626 } 3627 3628 /** 3629 * Sets the Factory used to create new Spannables. 3630 */ 3631 public final void setSpannableFactory(Spannable.Factory factory) { 3632 mSpannableFactory = factory; 3633 setText(mText); 3634 } 3635 3636 /** 3637 * Sets the string value of the TextView. TextView <em>does not</em> accept 3638 * HTML-like formatting, which you can do with text strings in XML resource files. 3639 * To style your strings, attach android.text.style.* objects to a 3640 * {@link android.text.SpannableString SpannableString}, or see the 3641 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 3642 * Available Resource Types</a> documentation for an example of setting 3643 * formatted text in the XML resource file. 3644 * 3645 * @attr ref android.R.styleable#TextView_text 3646 */ 3647 @android.view.RemotableViewMethod 3648 public final void setText(CharSequence text) { 3649 setText(text, mBufferType); 3650 } 3651 3652 /** 3653 * Like {@link #setText(CharSequence)}, 3654 * except that the cursor position (if any) is retained in the new text. 3655 * 3656 * @param text The new text to place in the text view. 3657 * 3658 * @see #setText(CharSequence) 3659 */ 3660 @android.view.RemotableViewMethod 3661 public final void setTextKeepState(CharSequence text) { 3662 setTextKeepState(text, mBufferType); 3663 } 3664 3665 /** 3666 * Sets the text that this TextView is to display (see 3667 * {@link #setText(CharSequence)}) and also sets whether it is stored 3668 * in a styleable/spannable buffer and whether it is editable. 3669 * 3670 * @attr ref android.R.styleable#TextView_text 3671 * @attr ref android.R.styleable#TextView_bufferType 3672 */ 3673 public void setText(CharSequence text, BufferType type) { 3674 setText(text, type, true, 0); 3675 3676 if (mCharWrapper != null) { 3677 mCharWrapper.mChars = null; 3678 } 3679 } 3680 3681 private void setText(CharSequence text, BufferType type, 3682 boolean notifyBefore, int oldlen) { 3683 if (text == null) { 3684 text = ""; 3685 } 3686 3687 // If suggestions are not enabled, remove the suggestion spans from the text 3688 if (!isSuggestionsEnabled()) { 3689 text = removeSuggestionSpans(text); 3690 } 3691 3692 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 3693 3694 if (text instanceof Spanned && 3695 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 3696 if (ViewConfiguration.get(mContext).isFadingMarqueeEnabled()) { 3697 setHorizontalFadingEdgeEnabled(true); 3698 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 3699 } else { 3700 setHorizontalFadingEdgeEnabled(false); 3701 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 3702 } 3703 setEllipsize(TextUtils.TruncateAt.MARQUEE); 3704 } 3705 3706 int n = mFilters.length; 3707 for (int i = 0; i < n; i++) { 3708 CharSequence out = mFilters[i].filter(text, 0, text.length(), EMPTY_SPANNED, 0, 0); 3709 if (out != null) { 3710 text = out; 3711 } 3712 } 3713 3714 if (notifyBefore) { 3715 if (mText != null) { 3716 oldlen = mText.length(); 3717 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 3718 } else { 3719 sendBeforeTextChanged("", 0, 0, text.length()); 3720 } 3721 } 3722 3723 boolean needEditableForNotification = false; 3724 3725 if (mListeners != null && mListeners.size() != 0) { 3726 needEditableForNotification = true; 3727 } 3728 3729 if (type == BufferType.EDITABLE || getKeyListener() != null || 3730 needEditableForNotification) { 3731 createEditorIfNeeded(); 3732 Editable t = mEditableFactory.newEditable(text); 3733 text = t; 3734 setFilters(t, mFilters); 3735 InputMethodManager imm = InputMethodManager.peekInstance(); 3736 if (imm != null) imm.restartInput(this); 3737 } else if (type == BufferType.SPANNABLE || mMovement != null) { 3738 text = mSpannableFactory.newSpannable(text); 3739 } else if (!(text instanceof CharWrapper)) { 3740 text = TextUtils.stringOrSpannedString(text); 3741 } 3742 3743 if (mAutoLinkMask != 0) { 3744 Spannable s2; 3745 3746 if (type == BufferType.EDITABLE || text instanceof Spannable) { 3747 s2 = (Spannable) text; 3748 } else { 3749 s2 = mSpannableFactory.newSpannable(text); 3750 } 3751 3752 if (Linkify.addLinks(s2, mAutoLinkMask)) { 3753 text = s2; 3754 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 3755 3756 /* 3757 * We must go ahead and set the text before changing the 3758 * movement method, because setMovementMethod() may call 3759 * setText() again to try to upgrade the buffer type. 3760 */ 3761 mText = text; 3762 3763 // Do not change the movement method for text that support text selection as it 3764 // would prevent an arbitrary cursor displacement. 3765 if (mLinksClickable && !textCanBeSelected()) { 3766 setMovementMethod(LinkMovementMethod.getInstance()); 3767 } 3768 } 3769 } 3770 3771 mBufferType = type; 3772 mText = text; 3773 3774 if (mTransformation == null) { 3775 mTransformed = text; 3776 } else { 3777 mTransformed = mTransformation.getTransformation(text, this); 3778 } 3779 3780 final int textLength = text.length(); 3781 3782 if (text instanceof Spannable && !mAllowTransformationLengthChange) { 3783 Spannable sp = (Spannable) text; 3784 3785 // Remove any ChangeWatchers that might have come from other TextViews. 3786 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 3787 final int count = watchers.length; 3788 for (int i = 0; i < count; i++) { 3789 sp.removeSpan(watchers[i]); 3790 } 3791 3792 if (mChangeWatcher == null) mChangeWatcher = new ChangeWatcher(); 3793 3794 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 3795 (CHANGE_WATCHER_PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 3796 3797 if (mEditor != null) mEditor.addSpanWatchers(sp); 3798 3799 if (mTransformation != null) { 3800 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 3801 } 3802 3803 if (mMovement != null) { 3804 mMovement.initialize(this, (Spannable) text); 3805 3806 /* 3807 * Initializing the movement method will have set the 3808 * selection, so reset mSelectionMoved to keep that from 3809 * interfering with the normal on-focus selection-setting. 3810 */ 3811 if (mEditor != null) mEditor.mSelectionMoved = false; 3812 } 3813 } 3814 3815 if (mLayout != null) { 3816 checkForRelayout(); 3817 } 3818 3819 sendOnTextChanged(text, 0, oldlen, textLength); 3820 onTextChanged(text, 0, oldlen, textLength); 3821 3822 notifyViewAccessibilityStateChangedIfNeeded(AccessibilityEvent.CONTENT_CHANGE_TYPE_TEXT); 3823 3824 if (needEditableForNotification) { 3825 sendAfterTextChanged((Editable) text); 3826 } 3827 3828 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 3829 if (mEditor != null) mEditor.prepareCursorControllers(); 3830 } 3831 3832 /** 3833 * Sets the TextView to display the specified slice of the specified 3834 * char array. You must promise that you will not change the contents 3835 * of the array except for right before another call to setText(), 3836 * since the TextView has no way to know that the text 3837 * has changed and that it needs to invalidate and re-layout. 3838 */ 3839 public final void setText(char[] text, int start, int len) { 3840 int oldlen = 0; 3841 3842 if (start < 0 || len < 0 || start + len > text.length) { 3843 throw new IndexOutOfBoundsException(start + ", " + len); 3844 } 3845 3846 /* 3847 * We must do the before-notification here ourselves because if 3848 * the old text is a CharWrapper we destroy it before calling 3849 * into the normal path. 3850 */ 3851 if (mText != null) { 3852 oldlen = mText.length(); 3853 sendBeforeTextChanged(mText, 0, oldlen, len); 3854 } else { 3855 sendBeforeTextChanged("", 0, 0, len); 3856 } 3857 3858 if (mCharWrapper == null) { 3859 mCharWrapper = new CharWrapper(text, start, len); 3860 } else { 3861 mCharWrapper.set(text, start, len); 3862 } 3863 3864 setText(mCharWrapper, mBufferType, false, oldlen); 3865 } 3866 3867 /** 3868 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 3869 * except that the cursor position (if any) is retained in the new text. 3870 * 3871 * @see #setText(CharSequence, android.widget.TextView.BufferType) 3872 */ 3873 public final void setTextKeepState(CharSequence text, BufferType type) { 3874 int start = getSelectionStart(); 3875 int end = getSelectionEnd(); 3876 int len = text.length(); 3877 3878 setText(text, type); 3879 3880 if (start >= 0 || end >= 0) { 3881 if (mText instanceof Spannable) { 3882 Selection.setSelection((Spannable) mText, 3883 Math.max(0, Math.min(start, len)), 3884 Math.max(0, Math.min(end, len))); 3885 } 3886 } 3887 } 3888 3889 @android.view.RemotableViewMethod 3890 public final void setText(int resid) { 3891 setText(getContext().getResources().getText(resid)); 3892 } 3893 3894 public final void setText(int resid, BufferType type) { 3895 setText(getContext().getResources().getText(resid), type); 3896 } 3897 3898 /** 3899 * Sets the text to be displayed when the text of the TextView is empty. 3900 * Null means to use the normal empty text. The hint does not currently 3901 * participate in determining the size of the view. 3902 * 3903 * @attr ref android.R.styleable#TextView_hint 3904 */ 3905 @android.view.RemotableViewMethod 3906 public final void setHint(CharSequence hint) { 3907 mHint = TextUtils.stringOrSpannedString(hint); 3908 3909 if (mLayout != null) { 3910 checkForRelayout(); 3911 } 3912 3913 if (mText.length() == 0) { 3914 invalidate(); 3915 } 3916 3917 // Invalidate display list if hint is currently used 3918 if (mEditor != null && mText.length() == 0 && mHint != null) { 3919 mEditor.invalidateTextDisplayList(); 3920 } 3921 } 3922 3923 /** 3924 * Sets the text to be displayed when the text of the TextView is empty, 3925 * from a resource. 3926 * 3927 * @attr ref android.R.styleable#TextView_hint 3928 */ 3929 @android.view.RemotableViewMethod 3930 public final void setHint(int resid) { 3931 setHint(getContext().getResources().getText(resid)); 3932 } 3933 3934 /** 3935 * Returns the hint that is displayed when the text of the TextView 3936 * is empty. 3937 * 3938 * @attr ref android.R.styleable#TextView_hint 3939 */ 3940 @ViewDebug.CapturedViewProperty 3941 public CharSequence getHint() { 3942 return mHint; 3943 } 3944 3945 boolean isSingleLine() { 3946 return mSingleLine; 3947 } 3948 3949 private static boolean isMultilineInputType(int type) { 3950 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 3951 (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 3952 } 3953 3954 /** 3955 * Removes the suggestion spans. 3956 */ 3957 CharSequence removeSuggestionSpans(CharSequence text) { 3958 if (text instanceof Spanned) { 3959 Spannable spannable; 3960 if (text instanceof Spannable) { 3961 spannable = (Spannable) text; 3962 } else { 3963 spannable = new SpannableString(text); 3964 text = spannable; 3965 } 3966 3967 SuggestionSpan[] spans = spannable.getSpans(0, text.length(), SuggestionSpan.class); 3968 for (int i = 0; i < spans.length; i++) { 3969 spannable.removeSpan(spans[i]); 3970 } 3971 } 3972 return text; 3973 } 3974 3975 /** 3976 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 3977 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 3978 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 3979 * then a soft keyboard will not be displayed for this text view. 3980 * 3981 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 3982 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 3983 * type. 3984 * 3985 * @see #getInputType() 3986 * @see #setRawInputType(int) 3987 * @see android.text.InputType 3988 * @attr ref android.R.styleable#TextView_inputType 3989 */ 3990 public void setInputType(int type) { 3991 final boolean wasPassword = isPasswordInputType(getInputType()); 3992 final boolean wasVisiblePassword = isVisiblePasswordInputType(getInputType()); 3993 setInputType(type, false); 3994 final boolean isPassword = isPasswordInputType(type); 3995 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 3996 boolean forceUpdate = false; 3997 if (isPassword) { 3998 setTransformationMethod(PasswordTransformationMethod.getInstance()); 3999 setTypefaceFromAttrs(null /* fontFamily */, MONOSPACE, 0); 4000 } else if (isVisiblePassword) { 4001 if (mTransformation == PasswordTransformationMethod.getInstance()) { 4002 forceUpdate = true; 4003 } 4004 setTypefaceFromAttrs(null /* fontFamily */, MONOSPACE, 0); 4005 } else if (wasPassword || wasVisiblePassword) { 4006 // not in password mode, clean up typeface and transformation 4007 setTypefaceFromAttrs(null /* fontFamily */, -1, -1); 4008 if (mTransformation == PasswordTransformationMethod.getInstance()) { 4009 forceUpdate = true; 4010 } 4011 } 4012 4013 boolean singleLine = !isMultilineInputType(type); 4014 4015 // We need to update the single line mode if it has changed or we 4016 // were previously in password mode. 4017 if (mSingleLine != singleLine || forceUpdate) { 4018 // Change single line mode, but only change the transformation if 4019 // we are not in password mode. 4020 applySingleLine(singleLine, !isPassword, true); 4021 } 4022 4023 if (!isSuggestionsEnabled()) { 4024 mText = removeSuggestionSpans(mText); 4025 } 4026 4027 InputMethodManager imm = InputMethodManager.peekInstance(); 4028 if (imm != null) imm.restartInput(this); 4029 } 4030 4031 /** 4032 * It would be better to rely on the input type for everything. A password inputType should have 4033 * a password transformation. We should hence use isPasswordInputType instead of this method. 4034 * 4035 * We should: 4036 * - Call setInputType in setKeyListener instead of changing the input type directly (which 4037 * would install the correct transformation). 4038 * - Refuse the installation of a non-password transformation in setTransformation if the input 4039 * type is password. 4040 * 4041 * However, this is like this for legacy reasons and we cannot break existing apps. This method 4042 * is useful since it matches what the user can see (obfuscated text or not). 4043 * 4044 * @return true if the current transformation method is of the password type. 4045 */ 4046 private boolean hasPasswordTransformationMethod() { 4047 return mTransformation instanceof PasswordTransformationMethod; 4048 } 4049 4050 private static boolean isPasswordInputType(int inputType) { 4051 final int variation = 4052 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 4053 return variation 4054 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 4055 || variation 4056 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 4057 || variation 4058 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 4059 } 4060 4061 private static boolean isVisiblePasswordInputType(int inputType) { 4062 final int variation = 4063 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 4064 return variation 4065 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 4066 } 4067 4068 /** 4069 * Directly change the content type integer of the text view, without 4070 * modifying any other state. 4071 * @see #setInputType(int) 4072 * @see android.text.InputType 4073 * @attr ref android.R.styleable#TextView_inputType 4074 */ 4075 public void setRawInputType(int type) { 4076 if (type == InputType.TYPE_NULL && mEditor == null) return; //TYPE_NULL is the default value 4077 createEditorIfNeeded(); 4078 mEditor.mInputType = type; 4079 } 4080 4081 private void setInputType(int type, boolean direct) { 4082 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 4083 KeyListener input; 4084 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 4085 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 4086 TextKeyListener.Capitalize cap; 4087 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 4088 cap = TextKeyListener.Capitalize.CHARACTERS; 4089 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 4090 cap = TextKeyListener.Capitalize.WORDS; 4091 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 4092 cap = TextKeyListener.Capitalize.SENTENCES; 4093 } else { 4094 cap = TextKeyListener.Capitalize.NONE; 4095 } 4096 input = TextKeyListener.getInstance(autotext, cap); 4097 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 4098 input = DigitsKeyListener.getInstance( 4099 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 4100 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 4101 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 4102 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 4103 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 4104 input = DateKeyListener.getInstance(); 4105 break; 4106 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 4107 input = TimeKeyListener.getInstance(); 4108 break; 4109 default: 4110 input = DateTimeKeyListener.getInstance(); 4111 break; 4112 } 4113 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 4114 input = DialerKeyListener.getInstance(); 4115 } else { 4116 input = TextKeyListener.getInstance(); 4117 } 4118 setRawInputType(type); 4119 if (direct) { 4120 createEditorIfNeeded(); 4121 mEditor.mKeyListener = input; 4122 } else { 4123 setKeyListenerOnly(input); 4124 } 4125 } 4126 4127 /** 4128 * Get the type of the editable content. 4129 * 4130 * @see #setInputType(int) 4131 * @see android.text.InputType 4132 */ 4133 public int getInputType() { 4134 return mEditor == null ? EditorInfo.TYPE_NULL : mEditor.mInputType; 4135 } 4136 4137 /** 4138 * Change the editor type integer associated with the text view, which 4139 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 4140 * has focus. 4141 * @see #getImeOptions 4142 * @see android.view.inputmethod.EditorInfo 4143 * @attr ref android.R.styleable#TextView_imeOptions 4144 */ 4145 public void setImeOptions(int imeOptions) { 4146 createEditorIfNeeded(); 4147 mEditor.createInputContentTypeIfNeeded(); 4148 mEditor.mInputContentType.imeOptions = imeOptions; 4149 } 4150 4151 /** 4152 * Get the type of the IME editor. 4153 * 4154 * @see #setImeOptions(int) 4155 * @see android.view.inputmethod.EditorInfo 4156 */ 4157 public int getImeOptions() { 4158 return mEditor != null && mEditor.mInputContentType != null 4159 ? mEditor.mInputContentType.imeOptions : EditorInfo.IME_NULL; 4160 } 4161 4162 /** 4163 * Change the custom IME action associated with the text view, which 4164 * will be reported to an IME with {@link EditorInfo#actionLabel} 4165 * and {@link EditorInfo#actionId} when it has focus. 4166 * @see #getImeActionLabel 4167 * @see #getImeActionId 4168 * @see android.view.inputmethod.EditorInfo 4169 * @attr ref android.R.styleable#TextView_imeActionLabel 4170 * @attr ref android.R.styleable#TextView_imeActionId 4171 */ 4172 public void setImeActionLabel(CharSequence label, int actionId) { 4173 createEditorIfNeeded(); 4174 mEditor.createInputContentTypeIfNeeded(); 4175 mEditor.mInputContentType.imeActionLabel = label; 4176 mEditor.mInputContentType.imeActionId = actionId; 4177 } 4178 4179 /** 4180 * Get the IME action label previous set with {@link #setImeActionLabel}. 4181 * 4182 * @see #setImeActionLabel 4183 * @see android.view.inputmethod.EditorInfo 4184 */ 4185 public CharSequence getImeActionLabel() { 4186 return mEditor != null && mEditor.mInputContentType != null 4187 ? mEditor.mInputContentType.imeActionLabel : null; 4188 } 4189 4190 /** 4191 * Get the IME action ID previous set with {@link #setImeActionLabel}. 4192 * 4193 * @see #setImeActionLabel 4194 * @see android.view.inputmethod.EditorInfo 4195 */ 4196 public int getImeActionId() { 4197 return mEditor != null && mEditor.mInputContentType != null 4198 ? mEditor.mInputContentType.imeActionId : 0; 4199 } 4200 4201 /** 4202 * Set a special listener to be called when an action is performed 4203 * on the text view. This will be called when the enter key is pressed, 4204 * or when an action supplied to the IME is selected by the user. Setting 4205 * this means that the normal hard key event will not insert a newline 4206 * into the text view, even if it is multi-line; holding down the ALT 4207 * modifier will, however, allow the user to insert a newline character. 4208 */ 4209 public void setOnEditorActionListener(OnEditorActionListener l) { 4210 createEditorIfNeeded(); 4211 mEditor.createInputContentTypeIfNeeded(); 4212 mEditor.mInputContentType.onEditorActionListener = l; 4213 } 4214 4215 /** 4216 * Called when an attached input method calls 4217 * {@link InputConnection#performEditorAction(int) 4218 * InputConnection.performEditorAction()} 4219 * for this text view. The default implementation will call your action 4220 * listener supplied to {@link #setOnEditorActionListener}, or perform 4221 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 4222 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 4223 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 4224 * EditorInfo.IME_ACTION_DONE}. 4225 * 4226 * <p>For backwards compatibility, if no IME options have been set and the 4227 * text view would not normally advance focus on enter, then 4228 * the NEXT and DONE actions received here will be turned into an enter 4229 * key down/up pair to go through the normal key handling. 4230 * 4231 * @param actionCode The code of the action being performed. 4232 * 4233 * @see #setOnEditorActionListener 4234 */ 4235 public void onEditorAction(int actionCode) { 4236 final Editor.InputContentType ict = mEditor == null ? null : mEditor.mInputContentType; 4237 if (ict != null) { 4238 if (ict.onEditorActionListener != null) { 4239 if (ict.onEditorActionListener.onEditorAction(this, 4240 actionCode, null)) { 4241 return; 4242 } 4243 } 4244 4245 // This is the handling for some default action. 4246 // Note that for backwards compatibility we don't do this 4247 // default handling if explicit ime options have not been given, 4248 // instead turning this into the normal enter key codes that an 4249 // app may be expecting. 4250 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 4251 View v = focusSearch(FOCUS_FORWARD); 4252 if (v != null) { 4253 if (!v.requestFocus(FOCUS_FORWARD)) { 4254 throw new IllegalStateException("focus search returned a view " + 4255 "that wasn't able to take focus!"); 4256 } 4257 } 4258 return; 4259 4260 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 4261 View v = focusSearch(FOCUS_BACKWARD); 4262 if (v != null) { 4263 if (!v.requestFocus(FOCUS_BACKWARD)) { 4264 throw new IllegalStateException("focus search returned a view " + 4265 "that wasn't able to take focus!"); 4266 } 4267 } 4268 return; 4269 4270 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 4271 InputMethodManager imm = InputMethodManager.peekInstance(); 4272 if (imm != null && imm.isActive(this)) { 4273 imm.hideSoftInputFromWindow(getWindowToken(), 0); 4274 } 4275 return; 4276 } 4277 } 4278 4279 ViewRootImpl viewRootImpl = getViewRootImpl(); 4280 if (viewRootImpl != null) { 4281 long eventTime = SystemClock.uptimeMillis(); 4282 viewRootImpl.dispatchKeyFromIme( 4283 new KeyEvent(eventTime, eventTime, 4284 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 4285 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 4286 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 4287 | KeyEvent.FLAG_EDITOR_ACTION)); 4288 viewRootImpl.dispatchKeyFromIme( 4289 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 4290 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 4291 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 4292 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 4293 | KeyEvent.FLAG_EDITOR_ACTION)); 4294 } 4295 } 4296 4297 /** 4298 * Set the private content type of the text, which is the 4299 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 4300 * field that will be filled in when creating an input connection. 4301 * 4302 * @see #getPrivateImeOptions() 4303 * @see EditorInfo#privateImeOptions 4304 * @attr ref android.R.styleable#TextView_privateImeOptions 4305 */ 4306 public void setPrivateImeOptions(String type) { 4307 createEditorIfNeeded(); 4308 mEditor.createInputContentTypeIfNeeded(); 4309 mEditor.mInputContentType.privateImeOptions = type; 4310 } 4311 4312 /** 4313 * Get the private type of the content. 4314 * 4315 * @see #setPrivateImeOptions(String) 4316 * @see EditorInfo#privateImeOptions 4317 */ 4318 public String getPrivateImeOptions() { 4319 return mEditor != null && mEditor.mInputContentType != null 4320 ? mEditor.mInputContentType.privateImeOptions : null; 4321 } 4322 4323 /** 4324 * Set the extra input data of the text, which is the 4325 * {@link EditorInfo#extras TextBoxAttribute.extras} 4326 * Bundle that will be filled in when creating an input connection. The 4327 * given integer is the resource ID of an XML resource holding an 4328 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 4329 * 4330 * @see #getInputExtras(boolean) 4331 * @see EditorInfo#extras 4332 * @attr ref android.R.styleable#TextView_editorExtras 4333 */ 4334 public void setInputExtras(int xmlResId) throws XmlPullParserException, IOException { 4335 createEditorIfNeeded(); 4336 XmlResourceParser parser = getResources().getXml(xmlResId); 4337 mEditor.createInputContentTypeIfNeeded(); 4338 mEditor.mInputContentType.extras = new Bundle(); 4339 getResources().parseBundleExtras(parser, mEditor.mInputContentType.extras); 4340 } 4341 4342 /** 4343 * Retrieve the input extras currently associated with the text view, which 4344 * can be viewed as well as modified. 4345 * 4346 * @param create If true, the extras will be created if they don't already 4347 * exist. Otherwise, null will be returned if none have been created. 4348 * @see #setInputExtras(int) 4349 * @see EditorInfo#extras 4350 * @attr ref android.R.styleable#TextView_editorExtras 4351 */ 4352 public Bundle getInputExtras(boolean create) { 4353 if (mEditor == null && !create) return null; 4354 createEditorIfNeeded(); 4355 if (mEditor.mInputContentType == null) { 4356 if (!create) return null; 4357 mEditor.createInputContentTypeIfNeeded(); 4358 } 4359 if (mEditor.mInputContentType.extras == null) { 4360 if (!create) return null; 4361 mEditor.mInputContentType.extras = new Bundle(); 4362 } 4363 return mEditor.mInputContentType.extras; 4364 } 4365 4366 /** 4367 * Returns the error message that was set to be displayed with 4368 * {@link #setError}, or <code>null</code> if no error was set 4369 * or if it the error was cleared by the widget after user input. 4370 */ 4371 public CharSequence getError() { 4372 return mEditor == null ? null : mEditor.mError; 4373 } 4374 4375 /** 4376 * Sets the right-hand compound drawable of the TextView to the "error" 4377 * icon and sets an error message that will be displayed in a popup when 4378 * the TextView has focus. The icon and error message will be reset to 4379 * null when any key events cause changes to the TextView's text. If the 4380 * <code>error</code> is <code>null</code>, the error message and icon 4381 * will be cleared. 4382 */ 4383 @android.view.RemotableViewMethod 4384 public void setError(CharSequence error) { 4385 if (error == null) { 4386 setError(null, null); 4387 } else { 4388 Drawable dr = getContext().getResources(). 4389 getDrawable(com.android.internal.R.drawable.indicator_input_error); 4390 4391 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 4392 setError(error, dr); 4393 } 4394 } 4395 4396 /** 4397 * Sets the right-hand compound drawable of the TextView to the specified 4398 * icon and sets an error message that will be displayed in a popup when 4399 * the TextView has focus. The icon and error message will be reset to 4400 * null when any key events cause changes to the TextView's text. The 4401 * drawable must already have had {@link Drawable#setBounds} set on it. 4402 * If the <code>error</code> is <code>null</code>, the error message will 4403 * be cleared (and you should provide a <code>null</code> icon as well). 4404 */ 4405 public void setError(CharSequence error, Drawable icon) { 4406 createEditorIfNeeded(); 4407 mEditor.setError(error, icon); 4408 notifyViewAccessibilityStateChangedIfNeeded( 4409 AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED); 4410 } 4411 4412 @Override 4413 protected boolean setFrame(int l, int t, int r, int b) { 4414 boolean result = super.setFrame(l, t, r, b); 4415 4416 if (mEditor != null) mEditor.setFrame(); 4417 4418 restartMarqueeIfNeeded(); 4419 4420 return result; 4421 } 4422 4423 private void restartMarqueeIfNeeded() { 4424 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4425 mRestartMarquee = false; 4426 startMarquee(); 4427 } 4428 } 4429 4430 /** 4431 * Sets the list of input filters that will be used if the buffer is 4432 * Editable. Has no effect otherwise. 4433 * 4434 * @attr ref android.R.styleable#TextView_maxLength 4435 */ 4436 public void setFilters(InputFilter[] filters) { 4437 if (filters == null) { 4438 throw new IllegalArgumentException(); 4439 } 4440 4441 mFilters = filters; 4442 4443 if (mText instanceof Editable) { 4444 setFilters((Editable) mText, filters); 4445 } 4446 } 4447 4448 /** 4449 * Sets the list of input filters on the specified Editable, 4450 * and includes mInput in the list if it is an InputFilter. 4451 */ 4452 private void setFilters(Editable e, InputFilter[] filters) { 4453 if (mEditor != null) { 4454 final boolean undoFilter = mEditor.mUndoInputFilter != null; 4455 final boolean keyFilter = mEditor.mKeyListener instanceof InputFilter; 4456 int num = 0; 4457 if (undoFilter) num++; 4458 if (keyFilter) num++; 4459 if (num > 0) { 4460 InputFilter[] nf = new InputFilter[filters.length + num]; 4461 4462 System.arraycopy(filters, 0, nf, 0, filters.length); 4463 num = 0; 4464 if (undoFilter) { 4465 nf[filters.length] = mEditor.mUndoInputFilter; 4466 num++; 4467 } 4468 if (keyFilter) { 4469 nf[filters.length + num] = (InputFilter) mEditor.mKeyListener; 4470 } 4471 4472 e.setFilters(nf); 4473 return; 4474 } 4475 } 4476 e.setFilters(filters); 4477 } 4478 4479 /** 4480 * Returns the current list of input filters. 4481 * 4482 * @attr ref android.R.styleable#TextView_maxLength 4483 */ 4484 public InputFilter[] getFilters() { 4485 return mFilters; 4486 } 4487 4488 ///////////////////////////////////////////////////////////////////////// 4489 4490 private int getBoxHeight(Layout l) { 4491 Insets opticalInsets = isLayoutModeOptical(mParent) ? getOpticalInsets() : Insets.NONE; 4492 int padding = (l == mHintLayout) ? 4493 getCompoundPaddingTop() + getCompoundPaddingBottom() : 4494 getExtendedPaddingTop() + getExtendedPaddingBottom(); 4495 return getMeasuredHeight() - padding + opticalInsets.top + opticalInsets.bottom; 4496 } 4497 4498 int getVerticalOffset(boolean forceNormal) { 4499 int voffset = 0; 4500 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4501 4502 Layout l = mLayout; 4503 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4504 l = mHintLayout; 4505 } 4506 4507 if (gravity != Gravity.TOP) { 4508 int boxht = getBoxHeight(l); 4509 int textht = l.getHeight(); 4510 4511 if (textht < boxht) { 4512 if (gravity == Gravity.BOTTOM) 4513 voffset = boxht - textht; 4514 else // (gravity == Gravity.CENTER_VERTICAL) 4515 voffset = (boxht - textht) >> 1; 4516 } 4517 } 4518 return voffset; 4519 } 4520 4521 private int getBottomVerticalOffset(boolean forceNormal) { 4522 int voffset = 0; 4523 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 4524 4525 Layout l = mLayout; 4526 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 4527 l = mHintLayout; 4528 } 4529 4530 if (gravity != Gravity.BOTTOM) { 4531 int boxht = getBoxHeight(l); 4532 int textht = l.getHeight(); 4533 4534 if (textht < boxht) { 4535 if (gravity == Gravity.TOP) 4536 voffset = boxht - textht; 4537 else // (gravity == Gravity.CENTER_VERTICAL) 4538 voffset = (boxht - textht) >> 1; 4539 } 4540 } 4541 return voffset; 4542 } 4543 4544 void invalidateCursorPath() { 4545 if (mHighlightPathBogus) { 4546 invalidateCursor(); 4547 } else { 4548 final int horizontalPadding = getCompoundPaddingLeft(); 4549 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4550 4551 if (mEditor.mCursorCount == 0) { 4552 synchronized (TEMP_RECTF) { 4553 /* 4554 * The reason for this concern about the thickness of the 4555 * cursor and doing the floor/ceil on the coordinates is that 4556 * some EditTexts (notably textfields in the Browser) have 4557 * anti-aliased text where not all the characters are 4558 * necessarily at integer-multiple locations. This should 4559 * make sure the entire cursor gets invalidated instead of 4560 * sometimes missing half a pixel. 4561 */ 4562 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 4563 if (thick < 1.0f) { 4564 thick = 1.0f; 4565 } 4566 4567 thick /= 2.0f; 4568 4569 // mHighlightPath is guaranteed to be non null at that point. 4570 mHighlightPath.computeBounds(TEMP_RECTF, false); 4571 4572 invalidate((int) FloatMath.floor(horizontalPadding + TEMP_RECTF.left - thick), 4573 (int) FloatMath.floor(verticalPadding + TEMP_RECTF.top - thick), 4574 (int) FloatMath.ceil(horizontalPadding + TEMP_RECTF.right + thick), 4575 (int) FloatMath.ceil(verticalPadding + TEMP_RECTF.bottom + thick)); 4576 } 4577 } else { 4578 for (int i = 0; i < mEditor.mCursorCount; i++) { 4579 Rect bounds = mEditor.mCursorDrawable[i].getBounds(); 4580 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 4581 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 4582 } 4583 } 4584 } 4585 } 4586 4587 void invalidateCursor() { 4588 int where = getSelectionEnd(); 4589 4590 invalidateCursor(where, where, where); 4591 } 4592 4593 private void invalidateCursor(int a, int b, int c) { 4594 if (a >= 0 || b >= 0 || c >= 0) { 4595 int start = Math.min(Math.min(a, b), c); 4596 int end = Math.max(Math.max(a, b), c); 4597 invalidateRegion(start, end, true /* Also invalidates blinking cursor */); 4598 } 4599 } 4600 4601 /** 4602 * Invalidates the region of text enclosed between the start and end text offsets. 4603 */ 4604 void invalidateRegion(int start, int end, boolean invalidateCursor) { 4605 if (mLayout == null) { 4606 invalidate(); 4607 } else { 4608 int lineStart = mLayout.getLineForOffset(start); 4609 int top = mLayout.getLineTop(lineStart); 4610 4611 // This is ridiculous, but the descent from the line above 4612 // can hang down into the line we really want to redraw, 4613 // so we have to invalidate part of the line above to make 4614 // sure everything that needs to be redrawn really is. 4615 // (But not the whole line above, because that would cause 4616 // the same problem with the descenders on the line above it!) 4617 if (lineStart > 0) { 4618 top -= mLayout.getLineDescent(lineStart - 1); 4619 } 4620 4621 int lineEnd; 4622 4623 if (start == end) 4624 lineEnd = lineStart; 4625 else 4626 lineEnd = mLayout.getLineForOffset(end); 4627 4628 int bottom = mLayout.getLineBottom(lineEnd); 4629 4630 // mEditor can be null in case selection is set programmatically. 4631 if (invalidateCursor && mEditor != null) { 4632 for (int i = 0; i < mEditor.mCursorCount; i++) { 4633 Rect bounds = mEditor.mCursorDrawable[i].getBounds(); 4634 top = Math.min(top, bounds.top); 4635 bottom = Math.max(bottom, bounds.bottom); 4636 } 4637 } 4638 4639 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4640 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 4641 4642 int left, right; 4643 if (lineStart == lineEnd && !invalidateCursor) { 4644 left = (int) mLayout.getPrimaryHorizontal(start); 4645 right = (int) (mLayout.getPrimaryHorizontal(end) + 1.0); 4646 left += compoundPaddingLeft; 4647 right += compoundPaddingLeft; 4648 } else { 4649 // Rectangle bounding box when the region spans several lines 4650 left = compoundPaddingLeft; 4651 right = getWidth() - getCompoundPaddingRight(); 4652 } 4653 4654 invalidate(mScrollX + left, verticalPadding + top, 4655 mScrollX + right, verticalPadding + bottom); 4656 } 4657 } 4658 4659 private void registerForPreDraw() { 4660 if (!mPreDrawRegistered) { 4661 getViewTreeObserver().addOnPreDrawListener(this); 4662 mPreDrawRegistered = true; 4663 } 4664 } 4665 4666 /** 4667 * {@inheritDoc} 4668 */ 4669 public boolean onPreDraw() { 4670 if (mLayout == null) { 4671 assumeLayout(); 4672 } 4673 4674 if (mMovement != null) { 4675 /* This code also provides auto-scrolling when a cursor is moved using a 4676 * CursorController (insertion point or selection limits). 4677 * For selection, ensure start or end is visible depending on controller's state. 4678 */ 4679 int curs = getSelectionEnd(); 4680 // Do not create the controller if it is not already created. 4681 if (mEditor != null && mEditor.mSelectionModifierCursorController != null && 4682 mEditor.mSelectionModifierCursorController.isSelectionStartDragged()) { 4683 curs = getSelectionStart(); 4684 } 4685 4686 /* 4687 * TODO: This should really only keep the end in view if 4688 * it already was before the text changed. I'm not sure 4689 * of a good way to tell from here if it was. 4690 */ 4691 if (curs < 0 && (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 4692 curs = mText.length(); 4693 } 4694 4695 if (curs >= 0) { 4696 bringPointIntoView(curs); 4697 } 4698 } else { 4699 bringTextIntoView(); 4700 } 4701 4702 // This has to be checked here since: 4703 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 4704 // a screen rotation) since layout is not yet initialized at that point. 4705 if (mEditor != null && mEditor.mCreatedWithASelection) { 4706 mEditor.startSelectionActionMode(); 4707 mEditor.mCreatedWithASelection = false; 4708 } 4709 4710 // Phone specific code (there is no ExtractEditText on tablets). 4711 // ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can 4712 // not be set. Do the test here instead. 4713 if (this instanceof ExtractEditText && hasSelection() && mEditor != null) { 4714 mEditor.startSelectionActionMode(); 4715 } 4716 4717 getViewTreeObserver().removeOnPreDrawListener(this); 4718 mPreDrawRegistered = false; 4719 4720 return true; 4721 } 4722 4723 @Override 4724 protected void onAttachedToWindow() { 4725 super.onAttachedToWindow(); 4726 4727 mTemporaryDetach = false; 4728 4729 if (mEditor != null) mEditor.onAttachedToWindow(); 4730 } 4731 4732 @Override 4733 protected void onDetachedFromWindow() { 4734 super.onDetachedFromWindow(); 4735 4736 if (mPreDrawRegistered) { 4737 getViewTreeObserver().removeOnPreDrawListener(this); 4738 mPreDrawRegistered = false; 4739 } 4740 4741 resetResolvedDrawables(); 4742 4743 if (mEditor != null) mEditor.onDetachedFromWindow(); 4744 } 4745 4746 @Override 4747 public void onScreenStateChanged(int screenState) { 4748 super.onScreenStateChanged(screenState); 4749 if (mEditor != null) mEditor.onScreenStateChanged(screenState); 4750 } 4751 4752 @Override 4753 protected boolean isPaddingOffsetRequired() { 4754 return mShadowRadius != 0 || mDrawables != null; 4755 } 4756 4757 @Override 4758 protected int getLeftPaddingOffset() { 4759 return getCompoundPaddingLeft() - mPaddingLeft + 4760 (int) Math.min(0, mShadowDx - mShadowRadius); 4761 } 4762 4763 @Override 4764 protected int getTopPaddingOffset() { 4765 return (int) Math.min(0, mShadowDy - mShadowRadius); 4766 } 4767 4768 @Override 4769 protected int getBottomPaddingOffset() { 4770 return (int) Math.max(0, mShadowDy + mShadowRadius); 4771 } 4772 4773 @Override 4774 protected int getRightPaddingOffset() { 4775 return -(getCompoundPaddingRight() - mPaddingRight) + 4776 (int) Math.max(0, mShadowDx + mShadowRadius); 4777 } 4778 4779 @Override 4780 protected boolean verifyDrawable(Drawable who) { 4781 final boolean verified = super.verifyDrawable(who); 4782 if (!verified && mDrawables != null) { 4783 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 4784 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom || 4785 who == mDrawables.mDrawableStart || who == mDrawables.mDrawableEnd; 4786 } 4787 return verified; 4788 } 4789 4790 @Override 4791 public void jumpDrawablesToCurrentState() { 4792 super.jumpDrawablesToCurrentState(); 4793 if (mDrawables != null) { 4794 if (mDrawables.mDrawableLeft != null) { 4795 mDrawables.mDrawableLeft.jumpToCurrentState(); 4796 } 4797 if (mDrawables.mDrawableTop != null) { 4798 mDrawables.mDrawableTop.jumpToCurrentState(); 4799 } 4800 if (mDrawables.mDrawableRight != null) { 4801 mDrawables.mDrawableRight.jumpToCurrentState(); 4802 } 4803 if (mDrawables.mDrawableBottom != null) { 4804 mDrawables.mDrawableBottom.jumpToCurrentState(); 4805 } 4806 if (mDrawables.mDrawableStart != null) { 4807 mDrawables.mDrawableStart.jumpToCurrentState(); 4808 } 4809 if (mDrawables.mDrawableEnd != null) { 4810 mDrawables.mDrawableEnd.jumpToCurrentState(); 4811 } 4812 } 4813 } 4814 4815 @Override 4816 public void invalidateDrawable(Drawable drawable) { 4817 if (verifyDrawable(drawable)) { 4818 final Rect dirty = drawable.getBounds(); 4819 int scrollX = mScrollX; 4820 int scrollY = mScrollY; 4821 4822 // IMPORTANT: The coordinates below are based on the coordinates computed 4823 // for each compound drawable in onDraw(). Make sure to update each section 4824 // accordingly. 4825 final TextView.Drawables drawables = mDrawables; 4826 if (drawables != null) { 4827 if (drawable == drawables.mDrawableLeft) { 4828 final int compoundPaddingTop = getCompoundPaddingTop(); 4829 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4830 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4831 4832 scrollX += mPaddingLeft; 4833 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 4834 } else if (drawable == drawables.mDrawableRight) { 4835 final int compoundPaddingTop = getCompoundPaddingTop(); 4836 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4837 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4838 4839 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 4840 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 4841 } else if (drawable == drawables.mDrawableTop) { 4842 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4843 final int compoundPaddingRight = getCompoundPaddingRight(); 4844 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4845 4846 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 4847 scrollY += mPaddingTop; 4848 } else if (drawable == drawables.mDrawableBottom) { 4849 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4850 final int compoundPaddingRight = getCompoundPaddingRight(); 4851 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4852 4853 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 4854 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 4855 } 4856 } 4857 4858 invalidate(dirty.left + scrollX, dirty.top + scrollY, 4859 dirty.right + scrollX, dirty.bottom + scrollY); 4860 } 4861 } 4862 4863 @Override 4864 public boolean hasOverlappingRendering() { 4865 // horizontal fading edge causes SaveLayerAlpha, which doesn't support alpha modulation 4866 return ((getBackground() != null && getBackground().getCurrent() != null) 4867 || mText instanceof Spannable || hasSelection() 4868 || isHorizontalFadingEdgeEnabled()); 4869 } 4870 4871 /** 4872 * 4873 * Returns the state of the {@code textIsSelectable} flag (See 4874 * {@link #setTextIsSelectable setTextIsSelectable()}). Although you have to set this flag 4875 * to allow users to select and copy text in a non-editable TextView, the content of an 4876 * {@link EditText} can always be selected, independently of the value of this flag. 4877 * <p> 4878 * 4879 * @return True if the text displayed in this TextView can be selected by the user. 4880 * 4881 * @attr ref android.R.styleable#TextView_textIsSelectable 4882 */ 4883 public boolean isTextSelectable() { 4884 return mEditor == null ? false : mEditor.mTextIsSelectable; 4885 } 4886 4887 /** 4888 * Sets whether the content of this view is selectable by the user. The default is 4889 * {@code false}, meaning that the content is not selectable. 4890 * <p> 4891 * When you use a TextView to display a useful piece of information to the user (such as a 4892 * contact's address), make it selectable, so that the user can select and copy its 4893 * content. You can also use set the XML attribute 4894 * {@link android.R.styleable#TextView_textIsSelectable} to "true". 4895 * <p> 4896 * When you call this method to set the value of {@code textIsSelectable}, it sets 4897 * the flags {@code focusable}, {@code focusableInTouchMode}, {@code clickable}, 4898 * and {@code longClickable} to the same value. These flags correspond to the attributes 4899 * {@link android.R.styleable#View_focusable android:focusable}, 4900 * {@link android.R.styleable#View_focusableInTouchMode android:focusableInTouchMode}, 4901 * {@link android.R.styleable#View_clickable android:clickable}, and 4902 * {@link android.R.styleable#View_longClickable android:longClickable}. To restore any of these 4903 * flags to a state you had set previously, call one or more of the following methods: 4904 * {@link #setFocusable(boolean) setFocusable()}, 4905 * {@link #setFocusableInTouchMode(boolean) setFocusableInTouchMode()}, 4906 * {@link #setClickable(boolean) setClickable()} or 4907 * {@link #setLongClickable(boolean) setLongClickable()}. 4908 * 4909 * @param selectable Whether the content of this TextView should be selectable. 4910 */ 4911 public void setTextIsSelectable(boolean selectable) { 4912 if (!selectable && mEditor == null) return; // false is default value with no edit data 4913 4914 createEditorIfNeeded(); 4915 if (mEditor.mTextIsSelectable == selectable) return; 4916 4917 mEditor.mTextIsSelectable = selectable; 4918 setFocusableInTouchMode(selectable); 4919 setFocusable(selectable); 4920 setClickable(selectable); 4921 setLongClickable(selectable); 4922 4923 // mInputType should already be EditorInfo.TYPE_NULL and mInput should be null 4924 4925 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 4926 setText(mText, selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 4927 4928 // Called by setText above, but safer in case of future code changes 4929 mEditor.prepareCursorControllers(); 4930 } 4931 4932 @Override 4933 protected int[] onCreateDrawableState(int extraSpace) { 4934 final int[] drawableState; 4935 4936 if (mSingleLine) { 4937 drawableState = super.onCreateDrawableState(extraSpace); 4938 } else { 4939 drawableState = super.onCreateDrawableState(extraSpace + 1); 4940 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 4941 } 4942 4943 if (isTextSelectable()) { 4944 // Disable pressed state, which was introduced when TextView was made clickable. 4945 // Prevents text color change. 4946 // setClickable(false) would have a similar effect, but it also disables focus changes 4947 // and long press actions, which are both needed by text selection. 4948 final int length = drawableState.length; 4949 for (int i = 0; i < length; i++) { 4950 if (drawableState[i] == R.attr.state_pressed) { 4951 final int[] nonPressedState = new int[length - 1]; 4952 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 4953 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 4954 return nonPressedState; 4955 } 4956 } 4957 } 4958 4959 return drawableState; 4960 } 4961 4962 private Path getUpdatedHighlightPath() { 4963 Path highlight = null; 4964 Paint highlightPaint = mHighlightPaint; 4965 4966 final int selStart = getSelectionStart(); 4967 final int selEnd = getSelectionEnd(); 4968 if (mMovement != null && (isFocused() || isPressed()) && selStart >= 0) { 4969 if (selStart == selEnd) { 4970 if (mEditor != null && mEditor.isCursorVisible() && 4971 (SystemClock.uptimeMillis() - mEditor.mShowCursor) % 4972 (2 * Editor.BLINK) < Editor.BLINK) { 4973 if (mHighlightPathBogus) { 4974 if (mHighlightPath == null) mHighlightPath = new Path(); 4975 mHighlightPath.reset(); 4976 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4977 mEditor.updateCursorsPositions(); 4978 mHighlightPathBogus = false; 4979 } 4980 4981 // XXX should pass to skin instead of drawing directly 4982 highlightPaint.setColor(mCurTextColor); 4983 highlightPaint.setStyle(Paint.Style.STROKE); 4984 highlight = mHighlightPath; 4985 } 4986 } else { 4987 if (mHighlightPathBogus) { 4988 if (mHighlightPath == null) mHighlightPath = new Path(); 4989 mHighlightPath.reset(); 4990 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4991 mHighlightPathBogus = false; 4992 } 4993 4994 // XXX should pass to skin instead of drawing directly 4995 highlightPaint.setColor(mHighlightColor); 4996 highlightPaint.setStyle(Paint.Style.FILL); 4997 4998 highlight = mHighlightPath; 4999 } 5000 } 5001 return highlight; 5002 } 5003 5004 /** 5005 * @hide 5006 */ 5007 public int getHorizontalOffsetForDrawables() { 5008 return 0; 5009 } 5010 5011 @Override 5012 protected void onDraw(Canvas canvas) { 5013 restartMarqueeIfNeeded(); 5014 5015 // Draw the background for this view 5016 super.onDraw(canvas); 5017 5018 final int compoundPaddingLeft = getCompoundPaddingLeft(); 5019 final int compoundPaddingTop = getCompoundPaddingTop(); 5020 final int compoundPaddingRight = getCompoundPaddingRight(); 5021 final int compoundPaddingBottom = getCompoundPaddingBottom(); 5022 final int scrollX = mScrollX; 5023 final int scrollY = mScrollY; 5024 final int right = mRight; 5025 final int left = mLeft; 5026 final int bottom = mBottom; 5027 final int top = mTop; 5028 final boolean isLayoutRtl = isLayoutRtl(); 5029 final int offset = getHorizontalOffsetForDrawables(); 5030 final int leftOffset = isLayoutRtl ? 0 : offset; 5031 final int rightOffset = isLayoutRtl ? offset : 0 ; 5032 5033 final Drawables dr = mDrawables; 5034 if (dr != null) { 5035 /* 5036 * Compound, not extended, because the icon is not clipped 5037 * if the text height is smaller. 5038 */ 5039 5040 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 5041 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 5042 5043 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 5044 // Make sure to update invalidateDrawable() when changing this code. 5045 if (dr.mDrawableLeft != null) { 5046 canvas.save(); 5047 canvas.translate(scrollX + mPaddingLeft + leftOffset, 5048 scrollY + compoundPaddingTop + 5049 (vspace - dr.mDrawableHeightLeft) / 2); 5050 dr.mDrawableLeft.draw(canvas); 5051 canvas.restore(); 5052 } 5053 5054 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 5055 // Make sure to update invalidateDrawable() when changing this code. 5056 if (dr.mDrawableRight != null) { 5057 canvas.save(); 5058 canvas.translate(scrollX + right - left - mPaddingRight 5059 - dr.mDrawableSizeRight - rightOffset, 5060 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 5061 dr.mDrawableRight.draw(canvas); 5062 canvas.restore(); 5063 } 5064 5065 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 5066 // Make sure to update invalidateDrawable() when changing this code. 5067 if (dr.mDrawableTop != null) { 5068 canvas.save(); 5069 canvas.translate(scrollX + compoundPaddingLeft + 5070 (hspace - dr.mDrawableWidthTop) / 2, scrollY + mPaddingTop); 5071 dr.mDrawableTop.draw(canvas); 5072 canvas.restore(); 5073 } 5074 5075 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 5076 // Make sure to update invalidateDrawable() when changing this code. 5077 if (dr.mDrawableBottom != null) { 5078 canvas.save(); 5079 canvas.translate(scrollX + compoundPaddingLeft + 5080 (hspace - dr.mDrawableWidthBottom) / 2, 5081 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 5082 dr.mDrawableBottom.draw(canvas); 5083 canvas.restore(); 5084 } 5085 } 5086 5087 int color = mCurTextColor; 5088 5089 if (mLayout == null) { 5090 assumeLayout(); 5091 } 5092 5093 Layout layout = mLayout; 5094 5095 if (mHint != null && mText.length() == 0) { 5096 if (mHintTextColor != null) { 5097 color = mCurHintTextColor; 5098 } 5099 5100 layout = mHintLayout; 5101 } 5102 5103 mTextPaint.setColor(color); 5104 mTextPaint.drawableState = getDrawableState(); 5105 5106 canvas.save(); 5107 /* Would be faster if we didn't have to do this. Can we chop the 5108 (displayable) text so that we don't need to do this ever? 5109 */ 5110 5111 int extendedPaddingTop = getExtendedPaddingTop(); 5112 int extendedPaddingBottom = getExtendedPaddingBottom(); 5113 5114 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 5115 final int maxScrollY = mLayout.getHeight() - vspace; 5116 5117 float clipLeft = compoundPaddingLeft + scrollX; 5118 float clipTop = (scrollY == 0) ? 0 : extendedPaddingTop + scrollY; 5119 float clipRight = right - left - compoundPaddingRight + scrollX; 5120 float clipBottom = bottom - top + scrollY - 5121 ((scrollY == maxScrollY) ? 0 : extendedPaddingBottom); 5122 5123 if (mShadowRadius != 0) { 5124 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 5125 clipRight += Math.max(0, mShadowDx + mShadowRadius); 5126 5127 clipTop += Math.min(0, mShadowDy - mShadowRadius); 5128 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 5129 } 5130 5131 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 5132 5133 int voffsetText = 0; 5134 int voffsetCursor = 0; 5135 5136 // translate in by our padding 5137 /* shortcircuit calling getVerticaOffset() */ 5138 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5139 voffsetText = getVerticalOffset(false); 5140 voffsetCursor = getVerticalOffset(true); 5141 } 5142 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 5143 5144 final int layoutDirection = getLayoutDirection(); 5145 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 5146 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 5147 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 5148 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 5149 (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 5150 final int width = mRight - mLeft; 5151 final int padding = getCompoundPaddingLeft() + getCompoundPaddingRight(); 5152 final float dx = mLayout.getLineRight(0) - (width - padding); 5153 canvas.translate(isLayoutRtl ? -dx : +dx, 0.0f); 5154 } 5155 5156 if (mMarquee != null && mMarquee.isRunning()) { 5157 final float dx = -mMarquee.getScroll(); 5158 canvas.translate(isLayoutRtl ? -dx : +dx, 0.0f); 5159 } 5160 } 5161 5162 final int cursorOffsetVertical = voffsetCursor - voffsetText; 5163 5164 Path highlight = getUpdatedHighlightPath(); 5165 if (mEditor != null) { 5166 mEditor.onDraw(canvas, layout, highlight, mHighlightPaint, cursorOffsetVertical); 5167 } else { 5168 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 5169 } 5170 5171 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 5172 final int dx = (int) mMarquee.getGhostOffset(); 5173 canvas.translate(isLayoutRtl ? -dx : dx, 0.0f); 5174 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 5175 } 5176 5177 canvas.restore(); 5178 } 5179 5180 @Override 5181 public void getFocusedRect(Rect r) { 5182 if (mLayout == null) { 5183 super.getFocusedRect(r); 5184 return; 5185 } 5186 5187 int selEnd = getSelectionEnd(); 5188 if (selEnd < 0) { 5189 super.getFocusedRect(r); 5190 return; 5191 } 5192 5193 int selStart = getSelectionStart(); 5194 if (selStart < 0 || selStart >= selEnd) { 5195 int line = mLayout.getLineForOffset(selEnd); 5196 r.top = mLayout.getLineTop(line); 5197 r.bottom = mLayout.getLineBottom(line); 5198 r.left = (int) mLayout.getPrimaryHorizontal(selEnd) - 2; 5199 r.right = r.left + 4; 5200 } else { 5201 int lineStart = mLayout.getLineForOffset(selStart); 5202 int lineEnd = mLayout.getLineForOffset(selEnd); 5203 r.top = mLayout.getLineTop(lineStart); 5204 r.bottom = mLayout.getLineBottom(lineEnd); 5205 if (lineStart == lineEnd) { 5206 r.left = (int) mLayout.getPrimaryHorizontal(selStart); 5207 r.right = (int) mLayout.getPrimaryHorizontal(selEnd); 5208 } else { 5209 // Selection extends across multiple lines -- make the focused 5210 // rect cover the entire width. 5211 if (mHighlightPathBogus) { 5212 if (mHighlightPath == null) mHighlightPath = new Path(); 5213 mHighlightPath.reset(); 5214 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 5215 mHighlightPathBogus = false; 5216 } 5217 synchronized (TEMP_RECTF) { 5218 mHighlightPath.computeBounds(TEMP_RECTF, true); 5219 r.left = (int)TEMP_RECTF.left-1; 5220 r.right = (int)TEMP_RECTF.right+1; 5221 } 5222 } 5223 } 5224 5225 // Adjust for padding and gravity. 5226 int paddingLeft = getCompoundPaddingLeft(); 5227 int paddingTop = getExtendedPaddingTop(); 5228 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5229 paddingTop += getVerticalOffset(false); 5230 } 5231 r.offset(paddingLeft, paddingTop); 5232 int paddingBottom = getExtendedPaddingBottom(); 5233 r.bottom += paddingBottom; 5234 } 5235 5236 /** 5237 * Return the number of lines of text, or 0 if the internal Layout has not 5238 * been built. 5239 */ 5240 public int getLineCount() { 5241 return mLayout != null ? mLayout.getLineCount() : 0; 5242 } 5243 5244 /** 5245 * Return the baseline for the specified line (0...getLineCount() - 1) 5246 * If bounds is not null, return the top, left, right, bottom extents 5247 * of the specified line in it. If the internal Layout has not been built, 5248 * return 0 and set bounds to (0, 0, 0, 0) 5249 * @param line which line to examine (0..getLineCount() - 1) 5250 * @param bounds Optional. If not null, it returns the extent of the line 5251 * @return the Y-coordinate of the baseline 5252 */ 5253 public int getLineBounds(int line, Rect bounds) { 5254 if (mLayout == null) { 5255 if (bounds != null) { 5256 bounds.set(0, 0, 0, 0); 5257 } 5258 return 0; 5259 } 5260 else { 5261 int baseline = mLayout.getLineBounds(line, bounds); 5262 5263 int voffset = getExtendedPaddingTop(); 5264 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5265 voffset += getVerticalOffset(true); 5266 } 5267 if (bounds != null) { 5268 bounds.offset(getCompoundPaddingLeft(), voffset); 5269 } 5270 return baseline + voffset; 5271 } 5272 } 5273 5274 @Override 5275 public int getBaseline() { 5276 if (mLayout == null) { 5277 return super.getBaseline(); 5278 } 5279 5280 int voffset = 0; 5281 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5282 voffset = getVerticalOffset(true); 5283 } 5284 5285 if (isLayoutModeOptical(mParent)) { 5286 voffset -= getOpticalInsets().top; 5287 } 5288 5289 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 5290 } 5291 5292 /** 5293 * @hide 5294 */ 5295 @Override 5296 protected int getFadeTop(boolean offsetRequired) { 5297 if (mLayout == null) return 0; 5298 5299 int voffset = 0; 5300 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5301 voffset = getVerticalOffset(true); 5302 } 5303 5304 if (offsetRequired) voffset += getTopPaddingOffset(); 5305 5306 return getExtendedPaddingTop() + voffset; 5307 } 5308 5309 /** 5310 * @hide 5311 */ 5312 @Override 5313 protected int getFadeHeight(boolean offsetRequired) { 5314 return mLayout != null ? mLayout.getHeight() : 0; 5315 } 5316 5317 @Override 5318 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 5319 if (keyCode == KeyEvent.KEYCODE_BACK) { 5320 boolean isInSelectionMode = mEditor != null && mEditor.mSelectionActionMode != null; 5321 5322 if (isInSelectionMode) { 5323 if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) { 5324 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5325 if (state != null) { 5326 state.startTracking(event, this); 5327 } 5328 return true; 5329 } else if (event.getAction() == KeyEvent.ACTION_UP) { 5330 KeyEvent.DispatcherState state = getKeyDispatcherState(); 5331 if (state != null) { 5332 state.handleUpEvent(event); 5333 } 5334 if (event.isTracking() && !event.isCanceled()) { 5335 stopSelectionActionMode(); 5336 return true; 5337 } 5338 } 5339 } 5340 } 5341 return super.onKeyPreIme(keyCode, event); 5342 } 5343 5344 @Override 5345 public boolean onKeyDown(int keyCode, KeyEvent event) { 5346 int which = doKeyDown(keyCode, event, null); 5347 if (which == 0) { 5348 return super.onKeyDown(keyCode, event); 5349 } 5350 5351 return true; 5352 } 5353 5354 @Override 5355 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 5356 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 5357 5358 int which = doKeyDown(keyCode, down, event); 5359 if (which == 0) { 5360 // Go through default dispatching. 5361 return super.onKeyMultiple(keyCode, repeatCount, event); 5362 } 5363 if (which == -1) { 5364 // Consumed the whole thing. 5365 return true; 5366 } 5367 5368 repeatCount--; 5369 5370 // We are going to dispatch the remaining events to either the input 5371 // or movement method. To do this, we will just send a repeated stream 5372 // of down and up events until we have done the complete repeatCount. 5373 // It would be nice if those interfaces had an onKeyMultiple() method, 5374 // but adding that is a more complicated change. 5375 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 5376 if (which == 1) { 5377 // mEditor and mEditor.mInput are not null from doKeyDown 5378 mEditor.mKeyListener.onKeyUp(this, (Editable)mText, keyCode, up); 5379 while (--repeatCount > 0) { 5380 mEditor.mKeyListener.onKeyDown(this, (Editable)mText, keyCode, down); 5381 mEditor.mKeyListener.onKeyUp(this, (Editable)mText, keyCode, up); 5382 } 5383 hideErrorIfUnchanged(); 5384 5385 } else if (which == 2) { 5386 // mMovement is not null from doKeyDown 5387 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5388 while (--repeatCount > 0) { 5389 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 5390 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 5391 } 5392 } 5393 5394 return true; 5395 } 5396 5397 /** 5398 * Returns true if pressing ENTER in this field advances focus instead 5399 * of inserting the character. This is true mostly in single-line fields, 5400 * but also in mail addresses and subjects which will display on multiple 5401 * lines but where it doesn't make sense to insert newlines. 5402 */ 5403 private boolean shouldAdvanceFocusOnEnter() { 5404 if (getKeyListener() == null) { 5405 return false; 5406 } 5407 5408 if (mSingleLine) { 5409 return true; 5410 } 5411 5412 if (mEditor != null && 5413 (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5414 int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION; 5415 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 5416 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 5417 return true; 5418 } 5419 } 5420 5421 return false; 5422 } 5423 5424 /** 5425 * Returns true if pressing TAB in this field advances focus instead 5426 * of inserting the character. Insert tabs only in multi-line editors. 5427 */ 5428 private boolean shouldAdvanceFocusOnTab() { 5429 if (getKeyListener() != null && !mSingleLine && mEditor != null && 5430 (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 5431 int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION; 5432 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 5433 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 5434 return false; 5435 } 5436 } 5437 return true; 5438 } 5439 5440 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 5441 if (!isEnabled()) { 5442 return 0; 5443 } 5444 5445 // If this is the initial keydown, we don't want to prevent a movement away from this view. 5446 // While this shouldn't be necessary because any time we're preventing default movement we 5447 // should be restricting the focus to remain within this view, thus we'll also receive 5448 // the key up event, occasionally key up events will get dropped and we don't want to 5449 // prevent the user from traversing out of this on the next key down. 5450 if (event.getRepeatCount() == 0 && !KeyEvent.isModifierKey(keyCode)) { 5451 mPreventDefaultMovement = false; 5452 } 5453 5454 switch (keyCode) { 5455 case KeyEvent.KEYCODE_ENTER: 5456 if (event.hasNoModifiers()) { 5457 // When mInputContentType is set, we know that we are 5458 // running in a "modern" cupcake environment, so don't need 5459 // to worry about the application trying to capture 5460 // enter key events. 5461 if (mEditor != null && mEditor.mInputContentType != null) { 5462 // If there is an action listener, given them a 5463 // chance to consume the event. 5464 if (mEditor.mInputContentType.onEditorActionListener != null && 5465 mEditor.mInputContentType.onEditorActionListener.onEditorAction( 5466 this, EditorInfo.IME_NULL, event)) { 5467 mEditor.mInputContentType.enterDown = true; 5468 // We are consuming the enter key for them. 5469 return -1; 5470 } 5471 } 5472 5473 // If our editor should move focus when enter is pressed, or 5474 // this is a generated event from an IME action button, then 5475 // don't let it be inserted into the text. 5476 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5477 || shouldAdvanceFocusOnEnter()) { 5478 if (hasOnClickListeners()) { 5479 return 0; 5480 } 5481 return -1; 5482 } 5483 } 5484 break; 5485 5486 case KeyEvent.KEYCODE_DPAD_CENTER: 5487 if (event.hasNoModifiers()) { 5488 if (shouldAdvanceFocusOnEnter()) { 5489 return 0; 5490 } 5491 } 5492 break; 5493 5494 case KeyEvent.KEYCODE_TAB: 5495 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 5496 if (shouldAdvanceFocusOnTab()) { 5497 return 0; 5498 } 5499 } 5500 break; 5501 5502 // Has to be done on key down (and not on key up) to correctly be intercepted. 5503 case KeyEvent.KEYCODE_BACK: 5504 if (mEditor != null && mEditor.mSelectionActionMode != null) { 5505 stopSelectionActionMode(); 5506 return -1; 5507 } 5508 break; 5509 } 5510 5511 if (mEditor != null && mEditor.mKeyListener != null) { 5512 resetErrorChangedFlag(); 5513 5514 boolean doDown = true; 5515 if (otherEvent != null) { 5516 try { 5517 beginBatchEdit(); 5518 final boolean handled = mEditor.mKeyListener.onKeyOther(this, (Editable) mText, 5519 otherEvent); 5520 hideErrorIfUnchanged(); 5521 doDown = false; 5522 if (handled) { 5523 return -1; 5524 } 5525 } catch (AbstractMethodError e) { 5526 // onKeyOther was added after 1.0, so if it isn't 5527 // implemented we need to try to dispatch as a regular down. 5528 } finally { 5529 endBatchEdit(); 5530 } 5531 } 5532 5533 if (doDown) { 5534 beginBatchEdit(); 5535 final boolean handled = mEditor.mKeyListener.onKeyDown(this, (Editable) mText, 5536 keyCode, event); 5537 endBatchEdit(); 5538 hideErrorIfUnchanged(); 5539 if (handled) return 1; 5540 } 5541 } 5542 5543 // bug 650865: sometimes we get a key event before a layout. 5544 // don't try to move around if we don't know the layout. 5545 5546 if (mMovement != null && mLayout != null) { 5547 boolean doDown = true; 5548 if (otherEvent != null) { 5549 try { 5550 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 5551 otherEvent); 5552 doDown = false; 5553 if (handled) { 5554 return -1; 5555 } 5556 } catch (AbstractMethodError e) { 5557 // onKeyOther was added after 1.0, so if it isn't 5558 // implemented we need to try to dispatch as a regular down. 5559 } 5560 } 5561 if (doDown) { 5562 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) { 5563 if (event.getRepeatCount() == 0 && !KeyEvent.isModifierKey(keyCode)) { 5564 mPreventDefaultMovement = true; 5565 } 5566 return 2; 5567 } 5568 } 5569 } 5570 5571 return mPreventDefaultMovement && !KeyEvent.isModifierKey(keyCode) ? -1 : 0; 5572 } 5573 5574 /** 5575 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 5576 * can be recorded. 5577 * @hide 5578 */ 5579 public void resetErrorChangedFlag() { 5580 /* 5581 * Keep track of what the error was before doing the input 5582 * so that if an input filter changed the error, we leave 5583 * that error showing. Otherwise, we take down whatever 5584 * error was showing when the user types something. 5585 */ 5586 if (mEditor != null) mEditor.mErrorWasChanged = false; 5587 } 5588 5589 /** 5590 * @hide 5591 */ 5592 public void hideErrorIfUnchanged() { 5593 if (mEditor != null && mEditor.mError != null && !mEditor.mErrorWasChanged) { 5594 setError(null, null); 5595 } 5596 } 5597 5598 @Override 5599 public boolean onKeyUp(int keyCode, KeyEvent event) { 5600 if (!isEnabled()) { 5601 return super.onKeyUp(keyCode, event); 5602 } 5603 5604 if (!KeyEvent.isModifierKey(keyCode)) { 5605 mPreventDefaultMovement = false; 5606 } 5607 5608 switch (keyCode) { 5609 case KeyEvent.KEYCODE_DPAD_CENTER: 5610 if (event.hasNoModifiers()) { 5611 /* 5612 * If there is a click listener, just call through to 5613 * super, which will invoke it. 5614 * 5615 * If there isn't a click listener, try to show the soft 5616 * input method. (It will also 5617 * call performClick(), but that won't do anything in 5618 * this case.) 5619 */ 5620 if (!hasOnClickListeners()) { 5621 if (mMovement != null && mText instanceof Editable 5622 && mLayout != null && onCheckIsTextEditor()) { 5623 InputMethodManager imm = InputMethodManager.peekInstance(); 5624 viewClicked(imm); 5625 if (imm != null && getShowSoftInputOnFocus()) { 5626 imm.showSoftInput(this, 0); 5627 } 5628 } 5629 } 5630 } 5631 return super.onKeyUp(keyCode, event); 5632 5633 case KeyEvent.KEYCODE_ENTER: 5634 if (event.hasNoModifiers()) { 5635 if (mEditor != null && mEditor.mInputContentType != null 5636 && mEditor.mInputContentType.onEditorActionListener != null 5637 && mEditor.mInputContentType.enterDown) { 5638 mEditor.mInputContentType.enterDown = false; 5639 if (mEditor.mInputContentType.onEditorActionListener.onEditorAction( 5640 this, EditorInfo.IME_NULL, event)) { 5641 return true; 5642 } 5643 } 5644 5645 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 5646 || shouldAdvanceFocusOnEnter()) { 5647 /* 5648 * If there is a click listener, just call through to 5649 * super, which will invoke it. 5650 * 5651 * If there isn't a click listener, try to advance focus, 5652 * but still call through to super, which will reset the 5653 * pressed state and longpress state. (It will also 5654 * call performClick(), but that won't do anything in 5655 * this case.) 5656 */ 5657 if (!hasOnClickListeners()) { 5658 View v = focusSearch(FOCUS_DOWN); 5659 5660 if (v != null) { 5661 if (!v.requestFocus(FOCUS_DOWN)) { 5662 throw new IllegalStateException( 5663 "focus search returned a view " + 5664 "that wasn't able to take focus!"); 5665 } 5666 5667 /* 5668 * Return true because we handled the key; super 5669 * will return false because there was no click 5670 * listener. 5671 */ 5672 super.onKeyUp(keyCode, event); 5673 return true; 5674 } else if ((event.getFlags() 5675 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 5676 // No target for next focus, but make sure the IME 5677 // if this came from it. 5678 InputMethodManager imm = InputMethodManager.peekInstance(); 5679 if (imm != null && imm.isActive(this)) { 5680 imm.hideSoftInputFromWindow(getWindowToken(), 0); 5681 } 5682 } 5683 } 5684 } 5685 return super.onKeyUp(keyCode, event); 5686 } 5687 break; 5688 } 5689 5690 if (mEditor != null && mEditor.mKeyListener != null) 5691 if (mEditor.mKeyListener.onKeyUp(this, (Editable) mText, keyCode, event)) 5692 return true; 5693 5694 if (mMovement != null && mLayout != null) 5695 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 5696 return true; 5697 5698 return super.onKeyUp(keyCode, event); 5699 } 5700 5701 @Override 5702 public boolean onCheckIsTextEditor() { 5703 return mEditor != null && mEditor.mInputType != EditorInfo.TYPE_NULL; 5704 } 5705 5706 @Override 5707 public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5708 if (onCheckIsTextEditor() && isEnabled()) { 5709 mEditor.createInputMethodStateIfNeeded(); 5710 outAttrs.inputType = getInputType(); 5711 if (mEditor.mInputContentType != null) { 5712 outAttrs.imeOptions = mEditor.mInputContentType.imeOptions; 5713 outAttrs.privateImeOptions = mEditor.mInputContentType.privateImeOptions; 5714 outAttrs.actionLabel = mEditor.mInputContentType.imeActionLabel; 5715 outAttrs.actionId = mEditor.mInputContentType.imeActionId; 5716 outAttrs.extras = mEditor.mInputContentType.extras; 5717 } else { 5718 outAttrs.imeOptions = EditorInfo.IME_NULL; 5719 } 5720 if (focusSearch(FOCUS_DOWN) != null) { 5721 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 5722 } 5723 if (focusSearch(FOCUS_UP) != null) { 5724 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 5725 } 5726 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 5727 == EditorInfo.IME_ACTION_UNSPECIFIED) { 5728 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 5729 // An action has not been set, but the enter key will move to 5730 // the next focus, so set the action to that. 5731 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 5732 } else { 5733 // An action has not been set, and there is no focus to move 5734 // to, so let's just supply a "done" action. 5735 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 5736 } 5737 if (!shouldAdvanceFocusOnEnter()) { 5738 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5739 } 5740 } 5741 if (isMultilineInputType(outAttrs.inputType)) { 5742 // Multi-line text editors should always show an enter key. 5743 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5744 } 5745 outAttrs.hintText = mHint; 5746 if (mText instanceof Editable) { 5747 InputConnection ic = new EditableInputConnection(this); 5748 outAttrs.initialSelStart = getSelectionStart(); 5749 outAttrs.initialSelEnd = getSelectionEnd(); 5750 outAttrs.initialCapsMode = ic.getCursorCapsMode(getInputType()); 5751 return ic; 5752 } 5753 } 5754 return null; 5755 } 5756 5757 /** 5758 * If this TextView contains editable content, extract a portion of it 5759 * based on the information in <var>request</var> in to <var>outText</var>. 5760 * @return Returns true if the text was successfully extracted, else false. 5761 */ 5762 public boolean extractText(ExtractedTextRequest request, ExtractedText outText) { 5763 createEditorIfNeeded(); 5764 return mEditor.extractText(request, outText); 5765 } 5766 5767 /** 5768 * This is used to remove all style-impacting spans from text before new 5769 * extracted text is being replaced into it, so that we don't have any 5770 * lingering spans applied during the replace. 5771 */ 5772 static void removeParcelableSpans(Spannable spannable, int start, int end) { 5773 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 5774 int i = spans.length; 5775 while (i > 0) { 5776 i--; 5777 spannable.removeSpan(spans[i]); 5778 } 5779 } 5780 5781 /** 5782 * Apply to this text view the given extracted text, as previously 5783 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 5784 */ 5785 public void setExtractedText(ExtractedText text) { 5786 Editable content = getEditableText(); 5787 if (text.text != null) { 5788 if (content == null) { 5789 setText(text.text, TextView.BufferType.EDITABLE); 5790 } else if (text.partialStartOffset < 0) { 5791 removeParcelableSpans(content, 0, content.length()); 5792 content.replace(0, content.length(), text.text); 5793 } else { 5794 final int N = content.length(); 5795 int start = text.partialStartOffset; 5796 if (start > N) start = N; 5797 int end = text.partialEndOffset; 5798 if (end > N) end = N; 5799 removeParcelableSpans(content, start, end); 5800 content.replace(start, end, text.text); 5801 } 5802 } 5803 5804 // Now set the selection position... make sure it is in range, to 5805 // avoid crashes. If this is a partial update, it is possible that 5806 // the underlying text may have changed, causing us problems here. 5807 // Also we just don't want to trust clients to do the right thing. 5808 Spannable sp = (Spannable)getText(); 5809 final int N = sp.length(); 5810 int start = text.selectionStart; 5811 if (start < 0) start = 0; 5812 else if (start > N) start = N; 5813 int end = text.selectionEnd; 5814 if (end < 0) end = 0; 5815 else if (end > N) end = N; 5816 Selection.setSelection(sp, start, end); 5817 5818 // Finally, update the selection mode. 5819 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 5820 MetaKeyKeyListener.startSelecting(this, sp); 5821 } else { 5822 MetaKeyKeyListener.stopSelecting(this, sp); 5823 } 5824 } 5825 5826 /** 5827 * @hide 5828 */ 5829 public void setExtracting(ExtractedTextRequest req) { 5830 if (mEditor.mInputMethodState != null) { 5831 mEditor.mInputMethodState.mExtractedTextRequest = req; 5832 } 5833 // This would stop a possible selection mode, but no such mode is started in case 5834 // extracted mode will start. Some text is selected though, and will trigger an action mode 5835 // in the extracted view. 5836 mEditor.hideControllers(); 5837 } 5838 5839 /** 5840 * Called by the framework in response to a text completion from 5841 * the current input method, provided by it calling 5842 * {@link InputConnection#commitCompletion 5843 * InputConnection.commitCompletion()}. The default implementation does 5844 * nothing; text views that are supporting auto-completion should override 5845 * this to do their desired behavior. 5846 * 5847 * @param text The auto complete text the user has selected. 5848 */ 5849 public void onCommitCompletion(CompletionInfo text) { 5850 // intentionally empty 5851 } 5852 5853 /** 5854 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 5855 * a dictionnary) from the current input method, provided by it calling 5856 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 5857 * implementation flashes the background of the corrected word to provide feedback to the user. 5858 * 5859 * @param info The auto correct info about the text that was corrected. 5860 */ 5861 public void onCommitCorrection(CorrectionInfo info) { 5862 if (mEditor != null) mEditor.onCommitCorrection(info); 5863 } 5864 5865 public void beginBatchEdit() { 5866 if (mEditor != null) mEditor.beginBatchEdit(); 5867 } 5868 5869 public void endBatchEdit() { 5870 if (mEditor != null) mEditor.endBatchEdit(); 5871 } 5872 5873 /** 5874 * Called by the framework in response to a request to begin a batch 5875 * of edit operations through a call to link {@link #beginBatchEdit()}. 5876 */ 5877 public void onBeginBatchEdit() { 5878 // intentionally empty 5879 } 5880 5881 /** 5882 * Called by the framework in response to a request to end a batch 5883 * of edit operations through a call to link {@link #endBatchEdit}. 5884 */ 5885 public void onEndBatchEdit() { 5886 // intentionally empty 5887 } 5888 5889 /** 5890 * Called by the framework in response to a private command from the 5891 * current method, provided by it calling 5892 * {@link InputConnection#performPrivateCommand 5893 * InputConnection.performPrivateCommand()}. 5894 * 5895 * @param action The action name of the command. 5896 * @param data Any additional data for the command. This may be null. 5897 * @return Return true if you handled the command, else false. 5898 */ 5899 public boolean onPrivateIMECommand(String action, Bundle data) { 5900 return false; 5901 } 5902 5903 private void nullLayouts() { 5904 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 5905 mSavedLayout = (BoringLayout) mLayout; 5906 } 5907 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 5908 mSavedHintLayout = (BoringLayout) mHintLayout; 5909 } 5910 5911 mSavedMarqueeModeLayout = mLayout = mHintLayout = null; 5912 5913 mBoring = mHintBoring = null; 5914 5915 // Since it depends on the value of mLayout 5916 if (mEditor != null) mEditor.prepareCursorControllers(); 5917 } 5918 5919 /** 5920 * Make a new Layout based on the already-measured size of the view, 5921 * on the assumption that it was measured correctly at some point. 5922 */ 5923 private void assumeLayout() { 5924 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5925 5926 if (width < 1) { 5927 width = 0; 5928 } 5929 5930 int physicalWidth = width; 5931 5932 if (mHorizontallyScrolling) { 5933 width = VERY_WIDE; 5934 } 5935 5936 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 5937 physicalWidth, false); 5938 } 5939 5940 private Layout.Alignment getLayoutAlignment() { 5941 Layout.Alignment alignment; 5942 switch (getTextAlignment()) { 5943 case TEXT_ALIGNMENT_GRAVITY: 5944 switch (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) { 5945 case Gravity.START: 5946 alignment = Layout.Alignment.ALIGN_NORMAL; 5947 break; 5948 case Gravity.END: 5949 alignment = Layout.Alignment.ALIGN_OPPOSITE; 5950 break; 5951 case Gravity.LEFT: 5952 alignment = Layout.Alignment.ALIGN_LEFT; 5953 break; 5954 case Gravity.RIGHT: 5955 alignment = Layout.Alignment.ALIGN_RIGHT; 5956 break; 5957 case Gravity.CENTER_HORIZONTAL: 5958 alignment = Layout.Alignment.ALIGN_CENTER; 5959 break; 5960 default: 5961 alignment = Layout.Alignment.ALIGN_NORMAL; 5962 break; 5963 } 5964 break; 5965 case TEXT_ALIGNMENT_TEXT_START: 5966 alignment = Layout.Alignment.ALIGN_NORMAL; 5967 break; 5968 case TEXT_ALIGNMENT_TEXT_END: 5969 alignment = Layout.Alignment.ALIGN_OPPOSITE; 5970 break; 5971 case TEXT_ALIGNMENT_CENTER: 5972 alignment = Layout.Alignment.ALIGN_CENTER; 5973 break; 5974 case TEXT_ALIGNMENT_VIEW_START: 5975 alignment = (getLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 5976 Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT; 5977 break; 5978 case TEXT_ALIGNMENT_VIEW_END: 5979 alignment = (getLayoutDirection() == LAYOUT_DIRECTION_RTL) ? 5980 Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT; 5981 break; 5982 case TEXT_ALIGNMENT_INHERIT: 5983 // This should never happen as we have already resolved the text alignment 5984 // but better safe than sorry so we just fall through 5985 default: 5986 alignment = Layout.Alignment.ALIGN_NORMAL; 5987 break; 5988 } 5989 return alignment; 5990 } 5991 5992 /** 5993 * The width passed in is now the desired layout width, 5994 * not the full view width with padding. 5995 * {@hide} 5996 */ 5997 protected void makeNewLayout(int wantWidth, int hintWidth, 5998 BoringLayout.Metrics boring, 5999 BoringLayout.Metrics hintBoring, 6000 int ellipsisWidth, boolean bringIntoView) { 6001 stopMarquee(); 6002 6003 // Update "old" cached values 6004 mOldMaximum = mMaximum; 6005 mOldMaxMode = mMaxMode; 6006 6007 mHighlightPathBogus = true; 6008 6009 if (wantWidth < 0) { 6010 wantWidth = 0; 6011 } 6012 if (hintWidth < 0) { 6013 hintWidth = 0; 6014 } 6015 6016 Layout.Alignment alignment = getLayoutAlignment(); 6017 final boolean testDirChange = mSingleLine && mLayout != null && 6018 (alignment == Layout.Alignment.ALIGN_NORMAL || 6019 alignment == Layout.Alignment.ALIGN_OPPOSITE); 6020 int oldDir = 0; 6021 if (testDirChange) oldDir = mLayout.getParagraphDirection(0); 6022 boolean shouldEllipsize = mEllipsize != null && getKeyListener() == null; 6023 final boolean switchEllipsize = mEllipsize == TruncateAt.MARQUEE && 6024 mMarqueeFadeMode != MARQUEE_FADE_NORMAL; 6025 TruncateAt effectiveEllipsize = mEllipsize; 6026 if (mEllipsize == TruncateAt.MARQUEE && 6027 mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 6028 effectiveEllipsize = TruncateAt.END_SMALL; 6029 } 6030 6031 if (mTextDir == null) { 6032 mTextDir = getTextDirectionHeuristic(); 6033 } 6034 6035 mLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, shouldEllipsize, 6036 effectiveEllipsize, effectiveEllipsize == mEllipsize); 6037 if (switchEllipsize) { 6038 TruncateAt oppositeEllipsize = effectiveEllipsize == TruncateAt.MARQUEE ? 6039 TruncateAt.END : TruncateAt.MARQUEE; 6040 mSavedMarqueeModeLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, 6041 shouldEllipsize, oppositeEllipsize, effectiveEllipsize != mEllipsize); 6042 } 6043 6044 shouldEllipsize = mEllipsize != null; 6045 mHintLayout = null; 6046 6047 if (mHint != null) { 6048 if (shouldEllipsize) hintWidth = wantWidth; 6049 6050 if (hintBoring == UNKNOWN_BORING) { 6051 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, 6052 mHintBoring); 6053 if (hintBoring != null) { 6054 mHintBoring = hintBoring; 6055 } 6056 } 6057 6058 if (hintBoring != null) { 6059 if (hintBoring.width <= hintWidth && 6060 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 6061 if (mSavedHintLayout != null) { 6062 mHintLayout = mSavedHintLayout. 6063 replaceOrMake(mHint, mTextPaint, 6064 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6065 hintBoring, mIncludePad); 6066 } else { 6067 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6068 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6069 hintBoring, mIncludePad); 6070 } 6071 6072 mSavedHintLayout = (BoringLayout) mHintLayout; 6073 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 6074 if (mSavedHintLayout != null) { 6075 mHintLayout = mSavedHintLayout. 6076 replaceOrMake(mHint, mTextPaint, 6077 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6078 hintBoring, mIncludePad, mEllipsize, 6079 ellipsisWidth); 6080 } else { 6081 mHintLayout = BoringLayout.make(mHint, mTextPaint, 6082 hintWidth, alignment, mSpacingMult, mSpacingAdd, 6083 hintBoring, mIncludePad, mEllipsize, 6084 ellipsisWidth); 6085 } 6086 } else if (shouldEllipsize) { 6087 mHintLayout = new StaticLayout(mHint, 6088 0, mHint.length(), 6089 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6090 mSpacingAdd, mIncludePad, mEllipsize, 6091 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6092 } else { 6093 mHintLayout = new StaticLayout(mHint, mTextPaint, 6094 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6095 mIncludePad); 6096 } 6097 } else if (shouldEllipsize) { 6098 mHintLayout = new StaticLayout(mHint, 6099 0, mHint.length(), 6100 mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult, 6101 mSpacingAdd, mIncludePad, mEllipsize, 6102 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6103 } else { 6104 mHintLayout = new StaticLayout(mHint, mTextPaint, 6105 hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6106 mIncludePad); 6107 } 6108 } 6109 6110 if (bringIntoView || (testDirChange && oldDir != mLayout.getParagraphDirection(0))) { 6111 registerForPreDraw(); 6112 } 6113 6114 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6115 if (!compressText(ellipsisWidth)) { 6116 final int height = mLayoutParams.height; 6117 // If the size of the view does not depend on the size of the text, try to 6118 // start the marquee immediately 6119 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 6120 startMarquee(); 6121 } else { 6122 // Defer the start of the marquee until we know our width (see setFrame()) 6123 mRestartMarquee = true; 6124 } 6125 } 6126 } 6127 6128 // CursorControllers need a non-null mLayout 6129 if (mEditor != null) mEditor.prepareCursorControllers(); 6130 } 6131 6132 private Layout makeSingleLayout(int wantWidth, BoringLayout.Metrics boring, int ellipsisWidth, 6133 Layout.Alignment alignment, boolean shouldEllipsize, TruncateAt effectiveEllipsize, 6134 boolean useSaved) { 6135 Layout result = null; 6136 if (mText instanceof Spannable) { 6137 result = new DynamicLayout(mText, mTransformed, mTextPaint, wantWidth, 6138 alignment, mTextDir, mSpacingMult, 6139 mSpacingAdd, mIncludePad, getKeyListener() == null ? effectiveEllipsize : null, 6140 ellipsisWidth); 6141 } else { 6142 if (boring == UNKNOWN_BORING) { 6143 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6144 if (boring != null) { 6145 mBoring = boring; 6146 } 6147 } 6148 6149 if (boring != null) { 6150 if (boring.width <= wantWidth && 6151 (effectiveEllipsize == null || boring.width <= ellipsisWidth)) { 6152 if (useSaved && mSavedLayout != null) { 6153 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 6154 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6155 boring, mIncludePad); 6156 } else { 6157 result = BoringLayout.make(mTransformed, mTextPaint, 6158 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6159 boring, mIncludePad); 6160 } 6161 6162 if (useSaved) { 6163 mSavedLayout = (BoringLayout) result; 6164 } 6165 } else if (shouldEllipsize && boring.width <= wantWidth) { 6166 if (useSaved && mSavedLayout != null) { 6167 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 6168 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6169 boring, mIncludePad, effectiveEllipsize, 6170 ellipsisWidth); 6171 } else { 6172 result = BoringLayout.make(mTransformed, mTextPaint, 6173 wantWidth, alignment, mSpacingMult, mSpacingAdd, 6174 boring, mIncludePad, effectiveEllipsize, 6175 ellipsisWidth); 6176 } 6177 } else if (shouldEllipsize) { 6178 result = new StaticLayout(mTransformed, 6179 0, mTransformed.length(), 6180 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 6181 mSpacingAdd, mIncludePad, effectiveEllipsize, 6182 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6183 } else { 6184 result = new StaticLayout(mTransformed, mTextPaint, 6185 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6186 mIncludePad); 6187 } 6188 } else if (shouldEllipsize) { 6189 result = new StaticLayout(mTransformed, 6190 0, mTransformed.length(), 6191 mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult, 6192 mSpacingAdd, mIncludePad, effectiveEllipsize, 6193 ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 6194 } else { 6195 result = new StaticLayout(mTransformed, mTextPaint, 6196 wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd, 6197 mIncludePad); 6198 } 6199 } 6200 return result; 6201 } 6202 6203 private boolean compressText(float width) { 6204 if (isHardwareAccelerated()) return false; 6205 6206 // Only compress the text if it hasn't been compressed by the previous pass 6207 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 6208 mTextPaint.getTextScaleX() == 1.0f) { 6209 final float textWidth = mLayout.getLineWidth(0); 6210 final float overflow = (textWidth + 1.0f - width) / width; 6211 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 6212 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 6213 post(new Runnable() { 6214 public void run() { 6215 requestLayout(); 6216 } 6217 }); 6218 return true; 6219 } 6220 } 6221 6222 return false; 6223 } 6224 6225 private static int desired(Layout layout) { 6226 int n = layout.getLineCount(); 6227 CharSequence text = layout.getText(); 6228 float max = 0; 6229 6230 // if any line was wrapped, we can't use it. 6231 // but it's ok for the last line not to have a newline 6232 6233 for (int i = 0; i < n - 1; i++) { 6234 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 6235 return -1; 6236 } 6237 6238 for (int i = 0; i < n; i++) { 6239 max = Math.max(max, layout.getLineWidth(i)); 6240 } 6241 6242 return (int) FloatMath.ceil(max); 6243 } 6244 6245 /** 6246 * Set whether the TextView includes extra top and bottom padding to make 6247 * room for accents that go above the normal ascent and descent. 6248 * The default is true. 6249 * 6250 * @see #getIncludeFontPadding() 6251 * 6252 * @attr ref android.R.styleable#TextView_includeFontPadding 6253 */ 6254 public void setIncludeFontPadding(boolean includepad) { 6255 if (mIncludePad != includepad) { 6256 mIncludePad = includepad; 6257 6258 if (mLayout != null) { 6259 nullLayouts(); 6260 requestLayout(); 6261 invalidate(); 6262 } 6263 } 6264 } 6265 6266 /** 6267 * Gets whether the TextView includes extra top and bottom padding to make 6268 * room for accents that go above the normal ascent and descent. 6269 * 6270 * @see #setIncludeFontPadding(boolean) 6271 * 6272 * @attr ref android.R.styleable#TextView_includeFontPadding 6273 */ 6274 public boolean getIncludeFontPadding() { 6275 return mIncludePad; 6276 } 6277 6278 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 6279 6280 @Override 6281 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 6282 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 6283 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 6284 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 6285 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 6286 6287 int width; 6288 int height; 6289 6290 BoringLayout.Metrics boring = UNKNOWN_BORING; 6291 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 6292 6293 if (mTextDir == null) { 6294 mTextDir = getTextDirectionHeuristic(); 6295 } 6296 6297 int des = -1; 6298 boolean fromexisting = false; 6299 6300 if (widthMode == MeasureSpec.EXACTLY) { 6301 // Parent has told us how big to be. So be it. 6302 width = widthSize; 6303 } else { 6304 if (mLayout != null && mEllipsize == null) { 6305 des = desired(mLayout); 6306 } 6307 6308 if (des < 0) { 6309 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 6310 if (boring != null) { 6311 mBoring = boring; 6312 } 6313 } else { 6314 fromexisting = true; 6315 } 6316 6317 if (boring == null || boring == UNKNOWN_BORING) { 6318 if (des < 0) { 6319 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 6320 } 6321 width = des; 6322 } else { 6323 width = boring.width; 6324 } 6325 6326 final Drawables dr = mDrawables; 6327 if (dr != null) { 6328 width = Math.max(width, dr.mDrawableWidthTop); 6329 width = Math.max(width, dr.mDrawableWidthBottom); 6330 } 6331 6332 if (mHint != null) { 6333 int hintDes = -1; 6334 int hintWidth; 6335 6336 if (mHintLayout != null && mEllipsize == null) { 6337 hintDes = desired(mHintLayout); 6338 } 6339 6340 if (hintDes < 0) { 6341 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, mHintBoring); 6342 if (hintBoring != null) { 6343 mHintBoring = hintBoring; 6344 } 6345 } 6346 6347 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 6348 if (hintDes < 0) { 6349 hintDes = (int) FloatMath.ceil(Layout.getDesiredWidth(mHint, mTextPaint)); 6350 } 6351 hintWidth = hintDes; 6352 } else { 6353 hintWidth = hintBoring.width; 6354 } 6355 6356 if (hintWidth > width) { 6357 width = hintWidth; 6358 } 6359 } 6360 6361 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 6362 6363 if (mMaxWidthMode == EMS) { 6364 width = Math.min(width, mMaxWidth * getLineHeight()); 6365 } else { 6366 width = Math.min(width, mMaxWidth); 6367 } 6368 6369 if (mMinWidthMode == EMS) { 6370 width = Math.max(width, mMinWidth * getLineHeight()); 6371 } else { 6372 width = Math.max(width, mMinWidth); 6373 } 6374 6375 // Check against our minimum width 6376 width = Math.max(width, getSuggestedMinimumWidth()); 6377 6378 if (widthMode == MeasureSpec.AT_MOST) { 6379 width = Math.min(widthSize, width); 6380 } 6381 } 6382 6383 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6384 int unpaddedWidth = want; 6385 6386 if (mHorizontallyScrolling) want = VERY_WIDE; 6387 6388 int hintWant = want; 6389 int hintWidth = (mHintLayout == null) ? hintWant : mHintLayout.getWidth(); 6390 6391 if (mLayout == null) { 6392 makeNewLayout(want, hintWant, boring, hintBoring, 6393 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6394 } else { 6395 final boolean layoutChanged = (mLayout.getWidth() != want) || 6396 (hintWidth != hintWant) || 6397 (mLayout.getEllipsizedWidth() != 6398 width - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6399 6400 final boolean widthChanged = (mHint == null) && 6401 (mEllipsize == null) && 6402 (want > mLayout.getWidth()) && 6403 (mLayout instanceof BoringLayout || (fromexisting && des >= 0 && des <= want)); 6404 6405 final boolean maximumChanged = (mMaxMode != mOldMaxMode) || (mMaximum != mOldMaximum); 6406 6407 if (layoutChanged || maximumChanged) { 6408 if (!maximumChanged && widthChanged) { 6409 mLayout.increaseWidthTo(want); 6410 } else { 6411 makeNewLayout(want, hintWant, boring, hintBoring, 6412 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 6413 } 6414 } else { 6415 // Nothing has changed 6416 } 6417 } 6418 6419 if (heightMode == MeasureSpec.EXACTLY) { 6420 // Parent has told us how big to be. So be it. 6421 height = heightSize; 6422 mDesiredHeightAtMeasure = -1; 6423 } else { 6424 int desired = getDesiredHeight(); 6425 6426 height = desired; 6427 mDesiredHeightAtMeasure = desired; 6428 6429 if (heightMode == MeasureSpec.AT_MOST) { 6430 height = Math.min(desired, heightSize); 6431 } 6432 } 6433 6434 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 6435 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 6436 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 6437 } 6438 6439 /* 6440 * We didn't let makeNewLayout() register to bring the cursor into view, 6441 * so do it here if there is any possibility that it is needed. 6442 */ 6443 if (mMovement != null || 6444 mLayout.getWidth() > unpaddedWidth || 6445 mLayout.getHeight() > unpaddedHeight) { 6446 registerForPreDraw(); 6447 } else { 6448 scrollTo(0, 0); 6449 } 6450 6451 setMeasuredDimension(width, height); 6452 } 6453 6454 private int getDesiredHeight() { 6455 return Math.max( 6456 getDesiredHeight(mLayout, true), 6457 getDesiredHeight(mHintLayout, mEllipsize != null)); 6458 } 6459 6460 private int getDesiredHeight(Layout layout, boolean cap) { 6461 if (layout == null) { 6462 return 0; 6463 } 6464 6465 int linecount = layout.getLineCount(); 6466 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 6467 int desired = layout.getLineTop(linecount); 6468 6469 final Drawables dr = mDrawables; 6470 if (dr != null) { 6471 desired = Math.max(desired, dr.mDrawableHeightLeft); 6472 desired = Math.max(desired, dr.mDrawableHeightRight); 6473 } 6474 6475 desired += pad; 6476 6477 if (mMaxMode == LINES) { 6478 /* 6479 * Don't cap the hint to a certain number of lines. 6480 * (Do cap it, though, if we have a maximum pixel height.) 6481 */ 6482 if (cap) { 6483 if (linecount > mMaximum) { 6484 desired = layout.getLineTop(mMaximum); 6485 6486 if (dr != null) { 6487 desired = Math.max(desired, dr.mDrawableHeightLeft); 6488 desired = Math.max(desired, dr.mDrawableHeightRight); 6489 } 6490 6491 desired += pad; 6492 linecount = mMaximum; 6493 } 6494 } 6495 } else { 6496 desired = Math.min(desired, mMaximum); 6497 } 6498 6499 if (mMinMode == LINES) { 6500 if (linecount < mMinimum) { 6501 desired += getLineHeight() * (mMinimum - linecount); 6502 } 6503 } else { 6504 desired = Math.max(desired, mMinimum); 6505 } 6506 6507 // Check against our minimum height 6508 desired = Math.max(desired, getSuggestedMinimumHeight()); 6509 6510 return desired; 6511 } 6512 6513 /** 6514 * Check whether a change to the existing text layout requires a 6515 * new view layout. 6516 */ 6517 private void checkForResize() { 6518 boolean sizeChanged = false; 6519 6520 if (mLayout != null) { 6521 // Check if our width changed 6522 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 6523 sizeChanged = true; 6524 invalidate(); 6525 } 6526 6527 // Check if our height changed 6528 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 6529 int desiredHeight = getDesiredHeight(); 6530 6531 if (desiredHeight != this.getHeight()) { 6532 sizeChanged = true; 6533 } 6534 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 6535 if (mDesiredHeightAtMeasure >= 0) { 6536 int desiredHeight = getDesiredHeight(); 6537 6538 if (desiredHeight != mDesiredHeightAtMeasure) { 6539 sizeChanged = true; 6540 } 6541 } 6542 } 6543 } 6544 6545 if (sizeChanged) { 6546 requestLayout(); 6547 // caller will have already invalidated 6548 } 6549 } 6550 6551 /** 6552 * Check whether entirely new text requires a new view layout 6553 * or merely a new text layout. 6554 */ 6555 private void checkForRelayout() { 6556 // If we have a fixed width, we can just swap in a new text layout 6557 // if the text height stays the same or if the view height is fixed. 6558 6559 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 6560 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 6561 (mHint == null || mHintLayout != null) && 6562 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 6563 // Static width, so try making a new text layout. 6564 6565 int oldht = mLayout.getHeight(); 6566 int want = mLayout.getWidth(); 6567 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 6568 6569 /* 6570 * No need to bring the text into view, since the size is not 6571 * changing (unless we do the requestLayout(), in which case it 6572 * will happen at measure). 6573 */ 6574 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 6575 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 6576 false); 6577 6578 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 6579 // In a fixed-height view, so use our new text layout. 6580 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 6581 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 6582 invalidate(); 6583 return; 6584 } 6585 6586 // Dynamic height, but height has stayed the same, 6587 // so use our new text layout. 6588 if (mLayout.getHeight() == oldht && 6589 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 6590 invalidate(); 6591 return; 6592 } 6593 } 6594 6595 // We lose: the height has changed and we have a dynamic height. 6596 // Request a new view layout using our new text layout. 6597 requestLayout(); 6598 invalidate(); 6599 } else { 6600 // Dynamic width, so we have no choice but to request a new 6601 // view layout with a new text layout. 6602 nullLayouts(); 6603 requestLayout(); 6604 invalidate(); 6605 } 6606 } 6607 6608 @Override 6609 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 6610 super.onLayout(changed, left, top, right, bottom); 6611 if (mDeferScroll >= 0) { 6612 int curs = mDeferScroll; 6613 mDeferScroll = -1; 6614 bringPointIntoView(Math.min(curs, mText.length())); 6615 } 6616 } 6617 6618 private boolean isShowingHint() { 6619 return TextUtils.isEmpty(mText) && !TextUtils.isEmpty(mHint); 6620 } 6621 6622 /** 6623 * Returns true if anything changed. 6624 */ 6625 private boolean bringTextIntoView() { 6626 Layout layout = isShowingHint() ? mHintLayout : mLayout; 6627 int line = 0; 6628 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6629 line = layout.getLineCount() - 1; 6630 } 6631 6632 Layout.Alignment a = layout.getParagraphAlignment(line); 6633 int dir = layout.getParagraphDirection(line); 6634 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6635 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6636 int ht = layout.getHeight(); 6637 6638 int scrollx, scrolly; 6639 6640 // Convert to left, center, or right alignment. 6641 if (a == Layout.Alignment.ALIGN_NORMAL) { 6642 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_LEFT : 6643 Layout.Alignment.ALIGN_RIGHT; 6644 } else if (a == Layout.Alignment.ALIGN_OPPOSITE){ 6645 a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_RIGHT : 6646 Layout.Alignment.ALIGN_LEFT; 6647 } 6648 6649 if (a == Layout.Alignment.ALIGN_CENTER) { 6650 /* 6651 * Keep centered if possible, or, if it is too wide to fit, 6652 * keep leading edge in view. 6653 */ 6654 6655 int left = (int) FloatMath.floor(layout.getLineLeft(line)); 6656 int right = (int) FloatMath.ceil(layout.getLineRight(line)); 6657 6658 if (right - left < hspace) { 6659 scrollx = (right + left) / 2 - hspace / 2; 6660 } else { 6661 if (dir < 0) { 6662 scrollx = right - hspace; 6663 } else { 6664 scrollx = left; 6665 } 6666 } 6667 } else if (a == Layout.Alignment.ALIGN_RIGHT) { 6668 int right = (int) FloatMath.ceil(layout.getLineRight(line)); 6669 scrollx = right - hspace; 6670 } else { // a == Layout.Alignment.ALIGN_LEFT (will also be the default) 6671 scrollx = (int) FloatMath.floor(layout.getLineLeft(line)); 6672 } 6673 6674 if (ht < vspace) { 6675 scrolly = 0; 6676 } else { 6677 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6678 scrolly = ht - vspace; 6679 } else { 6680 scrolly = 0; 6681 } 6682 } 6683 6684 if (scrollx != mScrollX || scrolly != mScrollY) { 6685 scrollTo(scrollx, scrolly); 6686 return true; 6687 } else { 6688 return false; 6689 } 6690 } 6691 6692 /** 6693 * Move the point, specified by the offset, into the view if it is needed. 6694 * This has to be called after layout. Returns true if anything changed. 6695 */ 6696 public boolean bringPointIntoView(int offset) { 6697 if (isLayoutRequested()) { 6698 mDeferScroll = offset; 6699 return false; 6700 } 6701 boolean changed = false; 6702 6703 Layout layout = isShowingHint() ? mHintLayout: mLayout; 6704 6705 if (layout == null) return changed; 6706 6707 int line = layout.getLineForOffset(offset); 6708 6709 int grav; 6710 6711 switch (layout.getParagraphAlignment(line)) { 6712 case ALIGN_LEFT: 6713 grav = 1; 6714 break; 6715 case ALIGN_RIGHT: 6716 grav = -1; 6717 break; 6718 case ALIGN_NORMAL: 6719 grav = layout.getParagraphDirection(line); 6720 break; 6721 case ALIGN_OPPOSITE: 6722 grav = -layout.getParagraphDirection(line); 6723 break; 6724 case ALIGN_CENTER: 6725 default: 6726 grav = 0; 6727 break; 6728 } 6729 6730 // We only want to clamp the cursor to fit within the layout width 6731 // in left-to-right modes, because in a right to left alignment, 6732 // we want to scroll to keep the line-right on the screen, as other 6733 // lines are likely to have text flush with the right margin, which 6734 // we want to keep visible. 6735 // A better long-term solution would probably be to measure both 6736 // the full line and a blank-trimmed version, and, for example, use 6737 // the latter measurement for centering and right alignment, but for 6738 // the time being we only implement the cursor clamping in left to 6739 // right where it is most likely to be annoying. 6740 final boolean clamped = grav > 0; 6741 // FIXME: Is it okay to truncate this, or should we round? 6742 final int x = (int)layout.getPrimaryHorizontal(offset, clamped); 6743 final int top = layout.getLineTop(line); 6744 final int bottom = layout.getLineTop(line + 1); 6745 6746 int left = (int) FloatMath.floor(layout.getLineLeft(line)); 6747 int right = (int) FloatMath.ceil(layout.getLineRight(line)); 6748 int ht = layout.getHeight(); 6749 6750 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6751 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6752 if (!mHorizontallyScrolling && right - left > hspace && right > x) { 6753 // If cursor has been clamped, make sure we don't scroll. 6754 right = Math.max(x, left + hspace); 6755 } 6756 6757 int hslack = (bottom - top) / 2; 6758 int vslack = hslack; 6759 6760 if (vslack > vspace / 4) 6761 vslack = vspace / 4; 6762 if (hslack > hspace / 4) 6763 hslack = hspace / 4; 6764 6765 int hs = mScrollX; 6766 int vs = mScrollY; 6767 6768 if (top - vs < vslack) 6769 vs = top - vslack; 6770 if (bottom - vs > vspace - vslack) 6771 vs = bottom - (vspace - vslack); 6772 if (ht - vs < vspace) 6773 vs = ht - vspace; 6774 if (0 - vs > 0) 6775 vs = 0; 6776 6777 if (grav != 0) { 6778 if (x - hs < hslack) { 6779 hs = x - hslack; 6780 } 6781 if (x - hs > hspace - hslack) { 6782 hs = x - (hspace - hslack); 6783 } 6784 } 6785 6786 if (grav < 0) { 6787 if (left - hs > 0) 6788 hs = left; 6789 if (right - hs < hspace) 6790 hs = right - hspace; 6791 } else if (grav > 0) { 6792 if (right - hs < hspace) 6793 hs = right - hspace; 6794 if (left - hs > 0) 6795 hs = left; 6796 } else /* grav == 0 */ { 6797 if (right - left <= hspace) { 6798 /* 6799 * If the entire text fits, center it exactly. 6800 */ 6801 hs = left - (hspace - (right - left)) / 2; 6802 } else if (x > right - hslack) { 6803 /* 6804 * If we are near the right edge, keep the right edge 6805 * at the edge of the view. 6806 */ 6807 hs = right - hspace; 6808 } else if (x < left + hslack) { 6809 /* 6810 * If we are near the left edge, keep the left edge 6811 * at the edge of the view. 6812 */ 6813 hs = left; 6814 } else if (left > hs) { 6815 /* 6816 * Is there whitespace visible at the left? Fix it if so. 6817 */ 6818 hs = left; 6819 } else if (right < hs + hspace) { 6820 /* 6821 * Is there whitespace visible at the right? Fix it if so. 6822 */ 6823 hs = right - hspace; 6824 } else { 6825 /* 6826 * Otherwise, float as needed. 6827 */ 6828 if (x - hs < hslack) { 6829 hs = x - hslack; 6830 } 6831 if (x - hs > hspace - hslack) { 6832 hs = x - (hspace - hslack); 6833 } 6834 } 6835 } 6836 6837 if (hs != mScrollX || vs != mScrollY) { 6838 if (mScroller == null) { 6839 scrollTo(hs, vs); 6840 } else { 6841 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 6842 int dx = hs - mScrollX; 6843 int dy = vs - mScrollY; 6844 6845 if (duration > ANIMATED_SCROLL_GAP) { 6846 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 6847 awakenScrollBars(mScroller.getDuration()); 6848 invalidate(); 6849 } else { 6850 if (!mScroller.isFinished()) { 6851 mScroller.abortAnimation(); 6852 } 6853 6854 scrollBy(dx, dy); 6855 } 6856 6857 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 6858 } 6859 6860 changed = true; 6861 } 6862 6863 if (isFocused()) { 6864 // This offsets because getInterestingRect() is in terms of viewport coordinates, but 6865 // requestRectangleOnScreen() is in terms of content coordinates. 6866 6867 // The offsets here are to ensure the rectangle we are using is 6868 // within our view bounds, in case the cursor is on the far left 6869 // or right. If it isn't withing the bounds, then this request 6870 // will be ignored. 6871 if (mTempRect == null) mTempRect = new Rect(); 6872 mTempRect.set(x - 2, top, x + 2, bottom); 6873 getInterestingRect(mTempRect, line); 6874 mTempRect.offset(mScrollX, mScrollY); 6875 6876 if (requestRectangleOnScreen(mTempRect)) { 6877 changed = true; 6878 } 6879 } 6880 6881 return changed; 6882 } 6883 6884 /** 6885 * Move the cursor, if needed, so that it is at an offset that is visible 6886 * to the user. This will not move the cursor if it represents more than 6887 * one character (a selection range). This will only work if the 6888 * TextView contains spannable text; otherwise it will do nothing. 6889 * 6890 * @return True if the cursor was actually moved, false otherwise. 6891 */ 6892 public boolean moveCursorToVisibleOffset() { 6893 if (!(mText instanceof Spannable)) { 6894 return false; 6895 } 6896 int start = getSelectionStart(); 6897 int end = getSelectionEnd(); 6898 if (start != end) { 6899 return false; 6900 } 6901 6902 // First: make sure the line is visible on screen: 6903 6904 int line = mLayout.getLineForOffset(start); 6905 6906 final int top = mLayout.getLineTop(line); 6907 final int bottom = mLayout.getLineTop(line + 1); 6908 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6909 int vslack = (bottom - top) / 2; 6910 if (vslack > vspace / 4) 6911 vslack = vspace / 4; 6912 final int vs = mScrollY; 6913 6914 if (top < (vs+vslack)) { 6915 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 6916 } else if (bottom > (vspace+vs-vslack)) { 6917 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 6918 } 6919 6920 // Next: make sure the character is visible on screen: 6921 6922 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6923 final int hs = mScrollX; 6924 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 6925 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 6926 6927 // line might contain bidirectional text 6928 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 6929 final int highChar = leftChar > rightChar ? leftChar : rightChar; 6930 6931 int newStart = start; 6932 if (newStart < lowChar) { 6933 newStart = lowChar; 6934 } else if (newStart > highChar) { 6935 newStart = highChar; 6936 } 6937 6938 if (newStart != start) { 6939 Selection.setSelection((Spannable)mText, newStart); 6940 return true; 6941 } 6942 6943 return false; 6944 } 6945 6946 @Override 6947 public void computeScroll() { 6948 if (mScroller != null) { 6949 if (mScroller.computeScrollOffset()) { 6950 mScrollX = mScroller.getCurrX(); 6951 mScrollY = mScroller.getCurrY(); 6952 invalidateParentCaches(); 6953 postInvalidate(); // So we draw again 6954 } 6955 } 6956 } 6957 6958 private void getInterestingRect(Rect r, int line) { 6959 convertFromViewportToContentCoordinates(r); 6960 6961 // Rectangle can can be expanded on first and last line to take 6962 // padding into account. 6963 // TODO Take left/right padding into account too? 6964 if (line == 0) r.top -= getExtendedPaddingTop(); 6965 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 6966 } 6967 6968 private void convertFromViewportToContentCoordinates(Rect r) { 6969 final int horizontalOffset = viewportToContentHorizontalOffset(); 6970 r.left += horizontalOffset; 6971 r.right += horizontalOffset; 6972 6973 final int verticalOffset = viewportToContentVerticalOffset(); 6974 r.top += verticalOffset; 6975 r.bottom += verticalOffset; 6976 } 6977 6978 int viewportToContentHorizontalOffset() { 6979 return getCompoundPaddingLeft() - mScrollX; 6980 } 6981 6982 int viewportToContentVerticalOffset() { 6983 int offset = getExtendedPaddingTop() - mScrollY; 6984 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 6985 offset += getVerticalOffset(false); 6986 } 6987 return offset; 6988 } 6989 6990 @Override 6991 public void debug(int depth) { 6992 super.debug(depth); 6993 6994 String output = debugIndent(depth); 6995 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 6996 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 6997 + "} "; 6998 6999 if (mText != null) { 7000 7001 output += "mText=\"" + mText + "\" "; 7002 if (mLayout != null) { 7003 output += "mLayout width=" + mLayout.getWidth() 7004 + " height=" + mLayout.getHeight(); 7005 } 7006 } else { 7007 output += "mText=NULL"; 7008 } 7009 Log.d(VIEW_LOG_TAG, output); 7010 } 7011 7012 /** 7013 * Convenience for {@link Selection#getSelectionStart}. 7014 */ 7015 @ViewDebug.ExportedProperty(category = "text") 7016 public int getSelectionStart() { 7017 return Selection.getSelectionStart(getText()); 7018 } 7019 7020 /** 7021 * Convenience for {@link Selection#getSelectionEnd}. 7022 */ 7023 @ViewDebug.ExportedProperty(category = "text") 7024 public int getSelectionEnd() { 7025 return Selection.getSelectionEnd(getText()); 7026 } 7027 7028 /** 7029 * Return true iff there is a selection inside this text view. 7030 */ 7031 public boolean hasSelection() { 7032 final int selectionStart = getSelectionStart(); 7033 final int selectionEnd = getSelectionEnd(); 7034 7035 return selectionStart >= 0 && selectionStart != selectionEnd; 7036 } 7037 7038 /** 7039 * Sets the properties of this field (lines, horizontally scrolling, 7040 * transformation method) to be for a single-line input. 7041 * 7042 * @attr ref android.R.styleable#TextView_singleLine 7043 */ 7044 public void setSingleLine() { 7045 setSingleLine(true); 7046 } 7047 7048 /** 7049 * Sets the properties of this field to transform input to ALL CAPS 7050 * display. This may use a "small caps" formatting if available. 7051 * This setting will be ignored if this field is editable or selectable. 7052 * 7053 * This call replaces the current transformation method. Disabling this 7054 * will not necessarily restore the previous behavior from before this 7055 * was enabled. 7056 * 7057 * @see #setTransformationMethod(TransformationMethod) 7058 * @attr ref android.R.styleable#TextView_textAllCaps 7059 */ 7060 public void setAllCaps(boolean allCaps) { 7061 if (allCaps) { 7062 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 7063 } else { 7064 setTransformationMethod(null); 7065 } 7066 } 7067 7068 /** 7069 * If true, sets the properties of this field (number of lines, horizontally scrolling, 7070 * transformation method) to be for a single-line input; if false, restores these to the default 7071 * conditions. 7072 * 7073 * Note that the default conditions are not necessarily those that were in effect prior this 7074 * method, and you may want to reset these properties to your custom values. 7075 * 7076 * @attr ref android.R.styleable#TextView_singleLine 7077 */ 7078 @android.view.RemotableViewMethod 7079 public void setSingleLine(boolean singleLine) { 7080 // Could be used, but may break backward compatibility. 7081 // if (mSingleLine == singleLine) return; 7082 setInputTypeSingleLine(singleLine); 7083 applySingleLine(singleLine, true, true); 7084 } 7085 7086 /** 7087 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 7088 * @param singleLine 7089 */ 7090 private void setInputTypeSingleLine(boolean singleLine) { 7091 if (mEditor != null && 7092 (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 7093 if (singleLine) { 7094 mEditor.mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7095 } else { 7096 mEditor.mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 7097 } 7098 } 7099 } 7100 7101 private void applySingleLine(boolean singleLine, boolean applyTransformation, 7102 boolean changeMaxLines) { 7103 mSingleLine = singleLine; 7104 if (singleLine) { 7105 setLines(1); 7106 setHorizontallyScrolling(true); 7107 if (applyTransformation) { 7108 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 7109 } 7110 } else { 7111 if (changeMaxLines) { 7112 setMaxLines(Integer.MAX_VALUE); 7113 } 7114 setHorizontallyScrolling(false); 7115 if (applyTransformation) { 7116 setTransformationMethod(null); 7117 } 7118 } 7119 } 7120 7121 /** 7122 * Causes words in the text that are longer than the view is wide 7123 * to be ellipsized instead of broken in the middle. You may also 7124 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 7125 * to constrain the text to a single line. Use <code>null</code> 7126 * to turn off ellipsizing. 7127 * 7128 * If {@link #setMaxLines} has been used to set two or more lines, 7129 * {@link android.text.TextUtils.TruncateAt#END} and 7130 * {@link android.text.TextUtils.TruncateAt#MARQUEE}* are only supported 7131 * (other ellipsizing types will not do anything). 7132 * 7133 * @attr ref android.R.styleable#TextView_ellipsize 7134 */ 7135 public void setEllipsize(TextUtils.TruncateAt where) { 7136 // TruncateAt is an enum. != comparison is ok between these singleton objects. 7137 if (mEllipsize != where) { 7138 mEllipsize = where; 7139 7140 if (mLayout != null) { 7141 nullLayouts(); 7142 requestLayout(); 7143 invalidate(); 7144 } 7145 } 7146 } 7147 7148 /** 7149 * Sets how many times to repeat the marquee animation. Only applied if the 7150 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 7151 * 7152 * @see #getMarqueeRepeatLimit() 7153 * 7154 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 7155 */ 7156 public void setMarqueeRepeatLimit(int marqueeLimit) { 7157 mMarqueeRepeatLimit = marqueeLimit; 7158 } 7159 7160 /** 7161 * Gets the number of times the marquee animation is repeated. Only meaningful if the 7162 * TextView has marquee enabled. 7163 * 7164 * @return the number of times the marquee animation is repeated. -1 if the animation 7165 * repeats indefinitely 7166 * 7167 * @see #setMarqueeRepeatLimit(int) 7168 * 7169 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 7170 */ 7171 public int getMarqueeRepeatLimit() { 7172 return mMarqueeRepeatLimit; 7173 } 7174 7175 /** 7176 * Returns where, if anywhere, words that are longer than the view 7177 * is wide should be ellipsized. 7178 */ 7179 @ViewDebug.ExportedProperty 7180 public TextUtils.TruncateAt getEllipsize() { 7181 return mEllipsize; 7182 } 7183 7184 /** 7185 * Set the TextView so that when it takes focus, all the text is 7186 * selected. 7187 * 7188 * @attr ref android.R.styleable#TextView_selectAllOnFocus 7189 */ 7190 @android.view.RemotableViewMethod 7191 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 7192 createEditorIfNeeded(); 7193 mEditor.mSelectAllOnFocus = selectAllOnFocus; 7194 7195 if (selectAllOnFocus && !(mText instanceof Spannable)) { 7196 setText(mText, BufferType.SPANNABLE); 7197 } 7198 } 7199 7200 /** 7201 * Set whether the cursor is visible. The default is true. Note that this property only 7202 * makes sense for editable TextView. 7203 * 7204 * @see #isCursorVisible() 7205 * 7206 * @attr ref android.R.styleable#TextView_cursorVisible 7207 */ 7208 @android.view.RemotableViewMethod 7209 public void setCursorVisible(boolean visible) { 7210 if (visible && mEditor == null) return; // visible is the default value with no edit data 7211 createEditorIfNeeded(); 7212 if (mEditor.mCursorVisible != visible) { 7213 mEditor.mCursorVisible = visible; 7214 invalidate(); 7215 7216 mEditor.makeBlink(); 7217 7218 // InsertionPointCursorController depends on mCursorVisible 7219 mEditor.prepareCursorControllers(); 7220 } 7221 } 7222 7223 /** 7224 * @return whether or not the cursor is visible (assuming this TextView is editable) 7225 * 7226 * @see #setCursorVisible(boolean) 7227 * 7228 * @attr ref android.R.styleable#TextView_cursorVisible 7229 */ 7230 public boolean isCursorVisible() { 7231 // true is the default value 7232 return mEditor == null ? true : mEditor.mCursorVisible; 7233 } 7234 7235 private boolean canMarquee() { 7236 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 7237 return width > 0 && (mLayout.getLineWidth(0) > width || 7238 (mMarqueeFadeMode != MARQUEE_FADE_NORMAL && mSavedMarqueeModeLayout != null && 7239 mSavedMarqueeModeLayout.getLineWidth(0) > width)); 7240 } 7241 7242 private void startMarquee() { 7243 // Do not ellipsize EditText 7244 if (getKeyListener() != null) return; 7245 7246 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 7247 return; 7248 } 7249 7250 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 7251 getLineCount() == 1 && canMarquee()) { 7252 7253 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 7254 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_FADE; 7255 final Layout tmp = mLayout; 7256 mLayout = mSavedMarqueeModeLayout; 7257 mSavedMarqueeModeLayout = tmp; 7258 setHorizontalFadingEdgeEnabled(true); 7259 requestLayout(); 7260 invalidate(); 7261 } 7262 7263 if (mMarquee == null) mMarquee = new Marquee(this); 7264 mMarquee.start(mMarqueeRepeatLimit); 7265 } 7266 } 7267 7268 private void stopMarquee() { 7269 if (mMarquee != null && !mMarquee.isStopped()) { 7270 mMarquee.stop(); 7271 } 7272 7273 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_FADE) { 7274 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 7275 final Layout tmp = mSavedMarqueeModeLayout; 7276 mSavedMarqueeModeLayout = mLayout; 7277 mLayout = tmp; 7278 setHorizontalFadingEdgeEnabled(false); 7279 requestLayout(); 7280 invalidate(); 7281 } 7282 } 7283 7284 private void startStopMarquee(boolean start) { 7285 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7286 if (start) { 7287 startMarquee(); 7288 } else { 7289 stopMarquee(); 7290 } 7291 } 7292 } 7293 7294 /** 7295 * This method is called when the text is changed, in case any subclasses 7296 * would like to know. 7297 * 7298 * Within <code>text</code>, the <code>lengthAfter</code> characters 7299 * beginning at <code>start</code> have just replaced old text that had 7300 * length <code>lengthBefore</code>. It is an error to attempt to make 7301 * changes to <code>text</code> from this callback. 7302 * 7303 * @param text The text the TextView is displaying 7304 * @param start The offset of the start of the range of the text that was 7305 * modified 7306 * @param lengthBefore The length of the former text that has been replaced 7307 * @param lengthAfter The length of the replacement modified text 7308 */ 7309 protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { 7310 // intentionally empty, template pattern method can be overridden by subclasses 7311 } 7312 7313 /** 7314 * This method is called when the selection has changed, in case any 7315 * subclasses would like to know. 7316 * 7317 * @param selStart The new selection start location. 7318 * @param selEnd The new selection end location. 7319 */ 7320 protected void onSelectionChanged(int selStart, int selEnd) { 7321 sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED); 7322 } 7323 7324 /** 7325 * Adds a TextWatcher to the list of those whose methods are called 7326 * whenever this TextView's text changes. 7327 * <p> 7328 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 7329 * not called after {@link #setText} calls. Now, doing {@link #setText} 7330 * if there are any text changed listeners forces the buffer type to 7331 * Editable if it would not otherwise be and does call this method. 7332 */ 7333 public void addTextChangedListener(TextWatcher watcher) { 7334 if (mListeners == null) { 7335 mListeners = new ArrayList<TextWatcher>(); 7336 } 7337 7338 mListeners.add(watcher); 7339 } 7340 7341 /** 7342 * Removes the specified TextWatcher from the list of those whose 7343 * methods are called 7344 * whenever this TextView's text changes. 7345 */ 7346 public void removeTextChangedListener(TextWatcher watcher) { 7347 if (mListeners != null) { 7348 int i = mListeners.indexOf(watcher); 7349 7350 if (i >= 0) { 7351 mListeners.remove(i); 7352 } 7353 } 7354 } 7355 7356 private void sendBeforeTextChanged(CharSequence text, int start, int before, int after) { 7357 if (mListeners != null) { 7358 final ArrayList<TextWatcher> list = mListeners; 7359 final int count = list.size(); 7360 for (int i = 0; i < count; i++) { 7361 list.get(i).beforeTextChanged(text, start, before, after); 7362 } 7363 } 7364 7365 // The spans that are inside or intersect the modified region no longer make sense 7366 removeIntersectingNonAdjacentSpans(start, start + before, SpellCheckSpan.class); 7367 removeIntersectingNonAdjacentSpans(start, start + before, SuggestionSpan.class); 7368 } 7369 7370 // Removes all spans that are inside or actually overlap the start..end range 7371 private <T> void removeIntersectingNonAdjacentSpans(int start, int end, Class<T> type) { 7372 if (!(mText instanceof Editable)) return; 7373 Editable text = (Editable) mText; 7374 7375 T[] spans = text.getSpans(start, end, type); 7376 final int length = spans.length; 7377 for (int i = 0; i < length; i++) { 7378 final int spanStart = text.getSpanStart(spans[i]); 7379 final int spanEnd = text.getSpanEnd(spans[i]); 7380 if (spanEnd == start || spanStart == end) break; 7381 text.removeSpan(spans[i]); 7382 } 7383 } 7384 7385 void removeAdjacentSuggestionSpans(final int pos) { 7386 if (!(mText instanceof Editable)) return; 7387 final Editable text = (Editable) mText; 7388 7389 final SuggestionSpan[] spans = text.getSpans(pos, pos, SuggestionSpan.class); 7390 final int length = spans.length; 7391 for (int i = 0; i < length; i++) { 7392 final int spanStart = text.getSpanStart(spans[i]); 7393 final int spanEnd = text.getSpanEnd(spans[i]); 7394 if (spanEnd == pos || spanStart == pos) { 7395 if (SpellChecker.haveWordBoundariesChanged(text, pos, pos, spanStart, spanEnd)) { 7396 text.removeSpan(spans[i]); 7397 } 7398 } 7399 } 7400 } 7401 7402 /** 7403 * Not private so it can be called from an inner class without going 7404 * through a thunk. 7405 */ 7406 void sendOnTextChanged(CharSequence text, int start, int before, int after) { 7407 if (mListeners != null) { 7408 final ArrayList<TextWatcher> list = mListeners; 7409 final int count = list.size(); 7410 for (int i = 0; i < count; i++) { 7411 list.get(i).onTextChanged(text, start, before, after); 7412 } 7413 } 7414 7415 if (mEditor != null) mEditor.sendOnTextChanged(start, after); 7416 } 7417 7418 /** 7419 * Not private so it can be called from an inner class without going 7420 * through a thunk. 7421 */ 7422 void sendAfterTextChanged(Editable text) { 7423 if (mListeners != null) { 7424 final ArrayList<TextWatcher> list = mListeners; 7425 final int count = list.size(); 7426 for (int i = 0; i < count; i++) { 7427 list.get(i).afterTextChanged(text); 7428 } 7429 } 7430 } 7431 7432 void updateAfterEdit() { 7433 invalidate(); 7434 int curs = getSelectionStart(); 7435 7436 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 7437 registerForPreDraw(); 7438 } 7439 7440 checkForResize(); 7441 7442 if (curs >= 0) { 7443 mHighlightPathBogus = true; 7444 if (mEditor != null) mEditor.makeBlink(); 7445 bringPointIntoView(curs); 7446 } 7447 } 7448 7449 /** 7450 * Not private so it can be called from an inner class without going 7451 * through a thunk. 7452 */ 7453 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 7454 final Editor.InputMethodState ims = mEditor == null ? null : mEditor.mInputMethodState; 7455 if (ims == null || ims.mBatchEditNesting == 0) { 7456 updateAfterEdit(); 7457 } 7458 if (ims != null) { 7459 ims.mContentChanged = true; 7460 if (ims.mChangedStart < 0) { 7461 ims.mChangedStart = start; 7462 ims.mChangedEnd = start+before; 7463 } else { 7464 ims.mChangedStart = Math.min(ims.mChangedStart, start); 7465 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 7466 } 7467 ims.mChangedDelta += after-before; 7468 } 7469 7470 sendOnTextChanged(buffer, start, before, after); 7471 onTextChanged(buffer, start, before, after); 7472 } 7473 7474 /** 7475 * Not private so it can be called from an inner class without going 7476 * through a thunk. 7477 */ 7478 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 7479 // XXX Make the start and end move together if this ends up 7480 // spending too much time invalidating. 7481 7482 boolean selChanged = false; 7483 int newSelStart=-1, newSelEnd=-1; 7484 7485 final Editor.InputMethodState ims = mEditor == null ? null : mEditor.mInputMethodState; 7486 7487 if (what == Selection.SELECTION_END) { 7488 selChanged = true; 7489 newSelEnd = newStart; 7490 7491 if (oldStart >= 0 || newStart >= 0) { 7492 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 7493 checkForResize(); 7494 registerForPreDraw(); 7495 if (mEditor != null) mEditor.makeBlink(); 7496 } 7497 } 7498 7499 if (what == Selection.SELECTION_START) { 7500 selChanged = true; 7501 newSelStart = newStart; 7502 7503 if (oldStart >= 0 || newStart >= 0) { 7504 int end = Selection.getSelectionEnd(buf); 7505 invalidateCursor(end, oldStart, newStart); 7506 } 7507 } 7508 7509 if (selChanged) { 7510 mHighlightPathBogus = true; 7511 if (mEditor != null && !isFocused()) mEditor.mSelectionMoved = true; 7512 7513 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 7514 if (newSelStart < 0) { 7515 newSelStart = Selection.getSelectionStart(buf); 7516 } 7517 if (newSelEnd < 0) { 7518 newSelEnd = Selection.getSelectionEnd(buf); 7519 } 7520 onSelectionChanged(newSelStart, newSelEnd); 7521 } 7522 } 7523 7524 if (what instanceof UpdateAppearance || what instanceof ParagraphStyle || 7525 what instanceof CharacterStyle) { 7526 if (ims == null || ims.mBatchEditNesting == 0) { 7527 invalidate(); 7528 mHighlightPathBogus = true; 7529 checkForResize(); 7530 } else { 7531 ims.mContentChanged = true; 7532 } 7533 if (mEditor != null) { 7534 if (oldStart >= 0) mEditor.invalidateTextDisplayList(mLayout, oldStart, oldEnd); 7535 if (newStart >= 0) mEditor.invalidateTextDisplayList(mLayout, newStart, newEnd); 7536 } 7537 } 7538 7539 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 7540 mHighlightPathBogus = true; 7541 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 7542 ims.mSelectionModeChanged = true; 7543 } 7544 7545 if (Selection.getSelectionStart(buf) >= 0) { 7546 if (ims == null || ims.mBatchEditNesting == 0) { 7547 invalidateCursor(); 7548 } else { 7549 ims.mCursorChanged = true; 7550 } 7551 } 7552 } 7553 7554 if (what instanceof ParcelableSpan) { 7555 // If this is a span that can be sent to a remote process, 7556 // the current extract editor would be interested in it. 7557 if (ims != null && ims.mExtractedTextRequest != null) { 7558 if (ims.mBatchEditNesting != 0) { 7559 if (oldStart >= 0) { 7560 if (ims.mChangedStart > oldStart) { 7561 ims.mChangedStart = oldStart; 7562 } 7563 if (ims.mChangedStart > oldEnd) { 7564 ims.mChangedStart = oldEnd; 7565 } 7566 } 7567 if (newStart >= 0) { 7568 if (ims.mChangedStart > newStart) { 7569 ims.mChangedStart = newStart; 7570 } 7571 if (ims.mChangedStart > newEnd) { 7572 ims.mChangedStart = newEnd; 7573 } 7574 } 7575 } else { 7576 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 7577 + oldStart + "-" + oldEnd + "," 7578 + newStart + "-" + newEnd + " " + what); 7579 ims.mContentChanged = true; 7580 } 7581 } 7582 } 7583 7584 if (mEditor != null && mEditor.mSpellChecker != null && newStart < 0 && 7585 what instanceof SpellCheckSpan) { 7586 mEditor.mSpellChecker.onSpellCheckSpanRemoved((SpellCheckSpan) what); 7587 } 7588 } 7589 7590 /** 7591 * @hide 7592 */ 7593 @Override 7594 public void dispatchFinishTemporaryDetach() { 7595 mDispatchTemporaryDetach = true; 7596 super.dispatchFinishTemporaryDetach(); 7597 mDispatchTemporaryDetach = false; 7598 } 7599 7600 @Override 7601 public void onStartTemporaryDetach() { 7602 super.onStartTemporaryDetach(); 7603 // Only track when onStartTemporaryDetach() is called directly, 7604 // usually because this instance is an editable field in a list 7605 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 7606 7607 // Tell the editor that we are temporarily detached. It can use this to preserve 7608 // selection state as needed. 7609 if (mEditor != null) mEditor.mTemporaryDetach = true; 7610 } 7611 7612 @Override 7613 public void onFinishTemporaryDetach() { 7614 super.onFinishTemporaryDetach(); 7615 // Only track when onStartTemporaryDetach() is called directly, 7616 // usually because this instance is an editable field in a list 7617 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 7618 if (mEditor != null) mEditor.mTemporaryDetach = false; 7619 } 7620 7621 @Override 7622 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 7623 if (mTemporaryDetach) { 7624 // If we are temporarily in the detach state, then do nothing. 7625 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7626 return; 7627 } 7628 7629 if (mEditor != null) mEditor.onFocusChanged(focused, direction); 7630 7631 if (focused) { 7632 if (mText instanceof Spannable) { 7633 Spannable sp = (Spannable) mText; 7634 MetaKeyKeyListener.resetMetaState(sp); 7635 } 7636 } 7637 7638 startStopMarquee(focused); 7639 7640 if (mTransformation != null) { 7641 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 7642 } 7643 7644 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7645 } 7646 7647 @Override 7648 public void onWindowFocusChanged(boolean hasWindowFocus) { 7649 super.onWindowFocusChanged(hasWindowFocus); 7650 7651 if (mEditor != null) mEditor.onWindowFocusChanged(hasWindowFocus); 7652 7653 startStopMarquee(hasWindowFocus); 7654 } 7655 7656 @Override 7657 protected void onVisibilityChanged(View changedView, int visibility) { 7658 super.onVisibilityChanged(changedView, visibility); 7659 if (mEditor != null && visibility != VISIBLE) { 7660 mEditor.hideControllers(); 7661 } 7662 } 7663 7664 /** 7665 * Use {@link BaseInputConnection#removeComposingSpans 7666 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 7667 * state from this text view. 7668 */ 7669 public void clearComposingText() { 7670 if (mText instanceof Spannable) { 7671 BaseInputConnection.removeComposingSpans((Spannable)mText); 7672 } 7673 } 7674 7675 @Override 7676 public void setSelected(boolean selected) { 7677 boolean wasSelected = isSelected(); 7678 7679 super.setSelected(selected); 7680 7681 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7682 if (selected) { 7683 startMarquee(); 7684 } else { 7685 stopMarquee(); 7686 } 7687 } 7688 } 7689 7690 @Override 7691 public boolean onTouchEvent(MotionEvent event) { 7692 final int action = event.getActionMasked(); 7693 7694 if (mEditor != null) mEditor.onTouchEvent(event); 7695 7696 final boolean superResult = super.onTouchEvent(event); 7697 7698 /* 7699 * Don't handle the release after a long press, because it will 7700 * move the selection away from whatever the menu action was 7701 * trying to affect. 7702 */ 7703 if (mEditor != null && mEditor.mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 7704 mEditor.mDiscardNextActionUp = false; 7705 return superResult; 7706 } 7707 7708 final boolean touchIsFinished = (action == MotionEvent.ACTION_UP) && 7709 (mEditor == null || !mEditor.mIgnoreActionUpEvent) && isFocused(); 7710 7711 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 7712 && mText instanceof Spannable && mLayout != null) { 7713 boolean handled = false; 7714 7715 if (mMovement != null) { 7716 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 7717 } 7718 7719 final boolean textIsSelectable = isTextSelectable(); 7720 if (touchIsFinished && mLinksClickable && mAutoLinkMask != 0 && textIsSelectable) { 7721 // The LinkMovementMethod which should handle taps on links has not been installed 7722 // on non editable text that support text selection. 7723 // We reproduce its behavior here to open links for these. 7724 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 7725 getSelectionEnd(), ClickableSpan.class); 7726 7727 if (links.length > 0) { 7728 links[0].onClick(this); 7729 handled = true; 7730 } 7731 } 7732 7733 if (touchIsFinished && (isTextEditable() || textIsSelectable)) { 7734 // Show the IME, except when selecting in read-only text. 7735 final InputMethodManager imm = InputMethodManager.peekInstance(); 7736 viewClicked(imm); 7737 if (!textIsSelectable && mEditor.mShowSoftInputOnFocus) { 7738 handled |= imm != null && imm.showSoftInput(this, 0); 7739 } 7740 7741 // The above condition ensures that the mEditor is not null 7742 mEditor.onTouchUpEvent(event); 7743 7744 handled = true; 7745 } 7746 7747 if (handled) { 7748 return true; 7749 } 7750 } 7751 7752 return superResult; 7753 } 7754 7755 @Override 7756 public boolean onGenericMotionEvent(MotionEvent event) { 7757 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 7758 try { 7759 if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) { 7760 return true; 7761 } 7762 } catch (AbstractMethodError ex) { 7763 // onGenericMotionEvent was added to the MovementMethod interface in API 12. 7764 // Ignore its absence in case third party applications implemented the 7765 // interface directly. 7766 } 7767 } 7768 return super.onGenericMotionEvent(event); 7769 } 7770 7771 /** 7772 * @return True iff this TextView contains a text that can be edited, or if this is 7773 * a selectable TextView. 7774 */ 7775 boolean isTextEditable() { 7776 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 7777 } 7778 7779 /** 7780 * Returns true, only while processing a touch gesture, if the initial 7781 * touch down event caused focus to move to the text view and as a result 7782 * its selection changed. Only valid while processing the touch gesture 7783 * of interest, in an editable text view. 7784 */ 7785 public boolean didTouchFocusSelect() { 7786 return mEditor != null && mEditor.mTouchFocusSelected; 7787 } 7788 7789 @Override 7790 public void cancelLongPress() { 7791 super.cancelLongPress(); 7792 if (mEditor != null) mEditor.mIgnoreActionUpEvent = true; 7793 } 7794 7795 @Override 7796 public boolean onTrackballEvent(MotionEvent event) { 7797 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 7798 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 7799 return true; 7800 } 7801 } 7802 7803 return super.onTrackballEvent(event); 7804 } 7805 7806 public void setScroller(Scroller s) { 7807 mScroller = s; 7808 } 7809 7810 @Override 7811 protected float getLeftFadingEdgeStrength() { 7812 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 7813 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 7814 if (mMarquee != null && !mMarquee.isStopped()) { 7815 final Marquee marquee = mMarquee; 7816 if (marquee.shouldDrawLeftFade()) { 7817 final float scroll = marquee.getScroll(); 7818 return scroll / getHorizontalFadingEdgeLength(); 7819 } else { 7820 return 0.0f; 7821 } 7822 } else if (getLineCount() == 1) { 7823 final int layoutDirection = getLayoutDirection(); 7824 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 7825 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7826 case Gravity.LEFT: 7827 return 0.0f; 7828 case Gravity.RIGHT: 7829 return (mLayout.getLineRight(0) - (mRight - mLeft) - 7830 getCompoundPaddingLeft() - getCompoundPaddingRight() - 7831 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 7832 case Gravity.CENTER_HORIZONTAL: 7833 case Gravity.FILL_HORIZONTAL: 7834 final int textDirection = mLayout.getParagraphDirection(0); 7835 if (textDirection == Layout.DIR_LEFT_TO_RIGHT) { 7836 return 0.0f; 7837 } else { 7838 return (mLayout.getLineRight(0) - (mRight - mLeft) - 7839 getCompoundPaddingLeft() - getCompoundPaddingRight() - 7840 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 7841 } 7842 } 7843 } 7844 } 7845 return super.getLeftFadingEdgeStrength(); 7846 } 7847 7848 @Override 7849 protected float getRightFadingEdgeStrength() { 7850 if (mEllipsize == TextUtils.TruncateAt.MARQUEE && 7851 mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 7852 if (mMarquee != null && !mMarquee.isStopped()) { 7853 final Marquee marquee = mMarquee; 7854 final float maxFadeScroll = marquee.getMaxFadeScroll(); 7855 final float scroll = marquee.getScroll(); 7856 return (maxFadeScroll - scroll) / getHorizontalFadingEdgeLength(); 7857 } else if (getLineCount() == 1) { 7858 final int layoutDirection = getLayoutDirection(); 7859 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 7860 switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7861 case Gravity.LEFT: 7862 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 7863 getCompoundPaddingRight(); 7864 final float lineWidth = mLayout.getLineWidth(0); 7865 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 7866 case Gravity.RIGHT: 7867 return 0.0f; 7868 case Gravity.CENTER_HORIZONTAL: 7869 case Gravity.FILL_HORIZONTAL: 7870 final int textDirection = mLayout.getParagraphDirection(0); 7871 if (textDirection == Layout.DIR_RIGHT_TO_LEFT) { 7872 return 0.0f; 7873 } else { 7874 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 7875 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 7876 getHorizontalFadingEdgeLength(); 7877 } 7878 } 7879 } 7880 } 7881 return super.getRightFadingEdgeStrength(); 7882 } 7883 7884 @Override 7885 protected int computeHorizontalScrollRange() { 7886 if (mLayout != null) { 7887 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 7888 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 7889 } 7890 7891 return super.computeHorizontalScrollRange(); 7892 } 7893 7894 @Override 7895 protected int computeVerticalScrollRange() { 7896 if (mLayout != null) 7897 return mLayout.getHeight(); 7898 7899 return super.computeVerticalScrollRange(); 7900 } 7901 7902 @Override 7903 protected int computeVerticalScrollExtent() { 7904 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 7905 } 7906 7907 @Override 7908 public void findViewsWithText(ArrayList<View> outViews, CharSequence searched, int flags) { 7909 super.findViewsWithText(outViews, searched, flags); 7910 if (!outViews.contains(this) && (flags & FIND_VIEWS_WITH_TEXT) != 0 7911 && !TextUtils.isEmpty(searched) && !TextUtils.isEmpty(mText)) { 7912 String searchedLowerCase = searched.toString().toLowerCase(); 7913 String textLowerCase = mText.toString().toLowerCase(); 7914 if (textLowerCase.contains(searchedLowerCase)) { 7915 outViews.add(this); 7916 } 7917 } 7918 } 7919 7920 public enum BufferType { 7921 NORMAL, SPANNABLE, EDITABLE, 7922 } 7923 7924 /** 7925 * Returns the TextView_textColor attribute from the 7926 * TypedArray, if set, or the TextAppearance_textColor 7927 * from the TextView_textAppearance attribute, if TextView_textColor 7928 * was not set directly. 7929 */ 7930 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 7931 ColorStateList colors; 7932 colors = attrs.getColorStateList(com.android.internal.R.styleable. 7933 TextView_textColor); 7934 7935 if (colors == null) { 7936 int ap = attrs.getResourceId(com.android.internal.R.styleable. 7937 TextView_textAppearance, -1); 7938 if (ap != -1) { 7939 TypedArray appearance; 7940 appearance = context.obtainStyledAttributes(ap, 7941 com.android.internal.R.styleable.TextAppearance); 7942 colors = appearance.getColorStateList(com.android.internal.R.styleable. 7943 TextAppearance_textColor); 7944 appearance.recycle(); 7945 } 7946 } 7947 7948 return colors; 7949 } 7950 7951 /** 7952 * Returns the default color from the TextView_textColor attribute 7953 * from the AttributeSet, if set, or the default color from the 7954 * TextAppearance_textColor from the TextView_textAppearance attribute, 7955 * if TextView_textColor was not set directly. 7956 */ 7957 public static int getTextColor(Context context, 7958 TypedArray attrs, 7959 int def) { 7960 ColorStateList colors = getTextColors(context, attrs); 7961 7962 if (colors == null) { 7963 return def; 7964 } else { 7965 return colors.getDefaultColor(); 7966 } 7967 } 7968 7969 @Override 7970 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 7971 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 7972 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 7973 switch (keyCode) { 7974 case KeyEvent.KEYCODE_A: 7975 if (canSelectText()) { 7976 return onTextContextMenuItem(ID_SELECT_ALL); 7977 } 7978 break; 7979 case KeyEvent.KEYCODE_X: 7980 if (canCut()) { 7981 return onTextContextMenuItem(ID_CUT); 7982 } 7983 break; 7984 case KeyEvent.KEYCODE_C: 7985 if (canCopy()) { 7986 return onTextContextMenuItem(ID_COPY); 7987 } 7988 break; 7989 case KeyEvent.KEYCODE_V: 7990 if (canPaste()) { 7991 return onTextContextMenuItem(ID_PASTE); 7992 } 7993 break; 7994 } 7995 } 7996 return super.onKeyShortcut(keyCode, event); 7997 } 7998 7999 /** 8000 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 8001 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 8002 * a selection controller (see {@link Editor#prepareCursorControllers()}), but this is not 8003 * sufficient. 8004 */ 8005 private boolean canSelectText() { 8006 return mText.length() != 0 && mEditor != null && mEditor.hasSelectionController(); 8007 } 8008 8009 /** 8010 * Test based on the <i>intrinsic</i> charateristics of the TextView. 8011 * The text must be spannable and the movement method must allow for arbitary selection. 8012 * 8013 * See also {@link #canSelectText()}. 8014 */ 8015 boolean textCanBeSelected() { 8016 // prepareCursorController() relies on this method. 8017 // If you change this condition, make sure prepareCursorController is called anywhere 8018 // the value of this condition might be changed. 8019 if (mMovement == null || !mMovement.canSelectArbitrarily()) return false; 8020 return isTextEditable() || 8021 (isTextSelectable() && mText instanceof Spannable && isEnabled()); 8022 } 8023 8024 private Locale getTextServicesLocale(boolean allowNullLocale) { 8025 // Start fetching the text services locale asynchronously. 8026 updateTextServicesLocaleAsync(); 8027 // If !allowNullLocale and there is no cached text services locale, just return the default 8028 // locale. 8029 return (mCurrentSpellCheckerLocaleCache == null && !allowNullLocale) ? Locale.getDefault() 8030 : mCurrentSpellCheckerLocaleCache; 8031 } 8032 8033 /** 8034 * This is a temporary method. Future versions may support multi-locale text. 8035 * Caveat: This method may not return the latest text services locale, but this should be 8036 * acceptable and it's more important to make this method asynchronous. 8037 * 8038 * @return The locale that should be used for a word iterator 8039 * in this TextView, based on the current spell checker settings, 8040 * the current IME's locale, or the system default locale. 8041 * Please note that a word iterator in this TextView is different from another word iterator 8042 * used by SpellChecker.java of TextView. This method should be used for the former. 8043 * @hide 8044 */ 8045 // TODO: Support multi-locale 8046 // TODO: Update the text services locale immediately after the keyboard locale is switched 8047 // by catching intent of keyboard switch event 8048 public Locale getTextServicesLocale() { 8049 return getTextServicesLocale(false /* allowNullLocale */); 8050 } 8051 8052 /** 8053 * This is a temporary method. Future versions may support multi-locale text. 8054 * Caveat: This method may not return the latest spell checker locale, but this should be 8055 * acceptable and it's more important to make this method asynchronous. 8056 * 8057 * @return The locale that should be used for a spell checker in this TextView, 8058 * based on the current spell checker settings, the current IME's locale, or the system default 8059 * locale. 8060 * @hide 8061 */ 8062 public Locale getSpellCheckerLocale() { 8063 return getTextServicesLocale(true /* allowNullLocale */); 8064 } 8065 8066 private void updateTextServicesLocaleAsync() { 8067 // AsyncTask.execute() uses a serial executor which means we don't have 8068 // to lock around updateTextServicesLocaleLocked() to prevent it from 8069 // being executed n times in parallel. 8070 AsyncTask.execute(new Runnable() { 8071 @Override 8072 public void run() { 8073 updateTextServicesLocaleLocked(); 8074 } 8075 }); 8076 } 8077 8078 private void updateTextServicesLocaleLocked() { 8079 final TextServicesManager textServicesManager = (TextServicesManager) 8080 mContext.getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE); 8081 final SpellCheckerSubtype subtype = textServicesManager.getCurrentSpellCheckerSubtype(true); 8082 final Locale locale; 8083 if (subtype != null) { 8084 locale = SpellCheckerSubtype.constructLocaleFromString(subtype.getLocale()); 8085 } else { 8086 locale = null; 8087 } 8088 mCurrentSpellCheckerLocaleCache = locale; 8089 } 8090 8091 void onLocaleChanged() { 8092 // Will be re-created on demand in getWordIterator with the proper new locale 8093 mEditor.mWordIterator = null; 8094 } 8095 8096 /** 8097 * This method is used by the ArrowKeyMovementMethod to jump from one word to the other. 8098 * Made available to achieve a consistent behavior. 8099 * @hide 8100 */ 8101 public WordIterator getWordIterator() { 8102 if (mEditor != null) { 8103 return mEditor.getWordIterator(); 8104 } else { 8105 return null; 8106 } 8107 } 8108 8109 @Override 8110 public void onPopulateAccessibilityEvent(AccessibilityEvent event) { 8111 super.onPopulateAccessibilityEvent(event); 8112 8113 final boolean isPassword = hasPasswordTransformationMethod(); 8114 if (!isPassword || shouldSpeakPasswordsForAccessibility()) { 8115 final CharSequence text = getTextForAccessibility(); 8116 if (!TextUtils.isEmpty(text)) { 8117 event.getText().add(text); 8118 } 8119 } 8120 } 8121 8122 /** 8123 * @return true if the user has explicitly allowed accessibility services 8124 * to speak passwords. 8125 */ 8126 private boolean shouldSpeakPasswordsForAccessibility() { 8127 return (Settings.Secure.getInt(mContext.getContentResolver(), 8128 Settings.Secure.ACCESSIBILITY_SPEAK_PASSWORD, 0) == 1); 8129 } 8130 8131 @Override 8132 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 8133 super.onInitializeAccessibilityEvent(event); 8134 8135 event.setClassName(TextView.class.getName()); 8136 final boolean isPassword = hasPasswordTransformationMethod(); 8137 event.setPassword(isPassword); 8138 8139 if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED) { 8140 event.setFromIndex(Selection.getSelectionStart(mText)); 8141 event.setToIndex(Selection.getSelectionEnd(mText)); 8142 event.setItemCount(mText.length()); 8143 } 8144 } 8145 8146 @Override 8147 public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 8148 super.onInitializeAccessibilityNodeInfo(info); 8149 8150 info.setClassName(TextView.class.getName()); 8151 final boolean isPassword = hasPasswordTransformationMethod(); 8152 info.setPassword(isPassword); 8153 8154 if (!isPassword) { 8155 info.setText(getTextForAccessibility()); 8156 } 8157 8158 if (mBufferType == BufferType.EDITABLE) { 8159 info.setEditable(true); 8160 } 8161 8162 if (mEditor != null) { 8163 info.setInputType(mEditor.mInputType); 8164 8165 if (mEditor.mError != null) { 8166 info.setContentInvalid(true); 8167 } 8168 } 8169 8170 if (!TextUtils.isEmpty(mText)) { 8171 info.addAction(AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY); 8172 info.addAction(AccessibilityNodeInfo.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY); 8173 info.setMovementGranularities(AccessibilityNodeInfo.MOVEMENT_GRANULARITY_CHARACTER 8174 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_WORD 8175 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_LINE 8176 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PARAGRAPH 8177 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PAGE); 8178 } 8179 8180 if (isFocused()) { 8181 if (canSelectText()) { 8182 info.addAction(AccessibilityNodeInfo.ACTION_SET_SELECTION); 8183 } 8184 if (canCopy()) { 8185 info.addAction(AccessibilityNodeInfo.ACTION_COPY); 8186 } 8187 if (canPaste()) { 8188 info.addAction(AccessibilityNodeInfo.ACTION_PASTE); 8189 } 8190 if (canCut()) { 8191 info.addAction(AccessibilityNodeInfo.ACTION_CUT); 8192 } 8193 } 8194 8195 if (!isSingleLine()) { 8196 info.setMultiLine(true); 8197 } 8198 } 8199 8200 @Override 8201 public boolean performAccessibilityAction(int action, Bundle arguments) { 8202 switch (action) { 8203 case AccessibilityNodeInfo.ACTION_COPY: { 8204 if (isFocused() && canCopy()) { 8205 if (onTextContextMenuItem(ID_COPY)) { 8206 return true; 8207 } 8208 } 8209 } return false; 8210 case AccessibilityNodeInfo.ACTION_PASTE: { 8211 if (isFocused() && canPaste()) { 8212 if (onTextContextMenuItem(ID_PASTE)) { 8213 return true; 8214 } 8215 } 8216 } return false; 8217 case AccessibilityNodeInfo.ACTION_CUT: { 8218 if (isFocused() && canCut()) { 8219 if (onTextContextMenuItem(ID_CUT)) { 8220 return true; 8221 } 8222 } 8223 } return false; 8224 case AccessibilityNodeInfo.ACTION_SET_SELECTION: { 8225 if (isFocused() && canSelectText()) { 8226 CharSequence text = getIterableTextForAccessibility(); 8227 if (text == null) { 8228 return false; 8229 } 8230 final int start = (arguments != null) ? arguments.getInt( 8231 AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_START_INT, -1) : -1; 8232 final int end = (arguments != null) ? arguments.getInt( 8233 AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_END_INT, -1) : -1; 8234 if ((getSelectionStart() != start || getSelectionEnd() != end)) { 8235 // No arguments clears the selection. 8236 if (start == end && end == -1) { 8237 Selection.removeSelection((Spannable) text); 8238 return true; 8239 } 8240 if (start >= 0 && start <= end && end <= text.length()) { 8241 Selection.setSelection((Spannable) text, start, end); 8242 // Make sure selection mode is engaged. 8243 if (mEditor != null) { 8244 mEditor.startSelectionActionMode(); 8245 } 8246 return true; 8247 } 8248 } 8249 } 8250 } return false; 8251 default: { 8252 return super.performAccessibilityAction(action, arguments); 8253 } 8254 } 8255 } 8256 8257 @Override 8258 public void sendAccessibilityEvent(int eventType) { 8259 // Do not send scroll events since first they are not interesting for 8260 // accessibility and second such events a generated too frequently. 8261 // For details see the implementation of bringTextIntoView(). 8262 if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 8263 return; 8264 } 8265 super.sendAccessibilityEvent(eventType); 8266 } 8267 8268 /** 8269 * Gets the text reported for accessibility purposes. 8270 * 8271 * @return The accessibility text. 8272 * 8273 * @hide 8274 */ 8275 public CharSequence getTextForAccessibility() { 8276 CharSequence text = getText(); 8277 if (TextUtils.isEmpty(text)) { 8278 text = getHint(); 8279 } 8280 return text; 8281 } 8282 8283 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 8284 int fromIndex, int removedCount, int addedCount) { 8285 AccessibilityEvent event = 8286 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 8287 event.setFromIndex(fromIndex); 8288 event.setRemovedCount(removedCount); 8289 event.setAddedCount(addedCount); 8290 event.setBeforeText(beforeText); 8291 sendAccessibilityEventUnchecked(event); 8292 } 8293 8294 /** 8295 * Returns whether this text view is a current input method target. The 8296 * default implementation just checks with {@link InputMethodManager}. 8297 */ 8298 public boolean isInputMethodTarget() { 8299 InputMethodManager imm = InputMethodManager.peekInstance(); 8300 return imm != null && imm.isActive(this); 8301 } 8302 8303 static final int ID_SELECT_ALL = android.R.id.selectAll; 8304 static final int ID_CUT = android.R.id.cut; 8305 static final int ID_COPY = android.R.id.copy; 8306 static final int ID_PASTE = android.R.id.paste; 8307 8308 /** 8309 * Called when a context menu option for the text view is selected. Currently 8310 * this will be one of {@link android.R.id#selectAll}, {@link android.R.id#cut}, 8311 * {@link android.R.id#copy} or {@link android.R.id#paste}. 8312 * 8313 * @return true if the context menu item action was performed. 8314 */ 8315 public boolean onTextContextMenuItem(int id) { 8316 int min = 0; 8317 int max = mText.length(); 8318 8319 if (isFocused()) { 8320 final int selStart = getSelectionStart(); 8321 final int selEnd = getSelectionEnd(); 8322 8323 min = Math.max(0, Math.min(selStart, selEnd)); 8324 max = Math.max(0, Math.max(selStart, selEnd)); 8325 } 8326 8327 switch (id) { 8328 case ID_SELECT_ALL: 8329 // This does not enter text selection mode. Text is highlighted, so that it can be 8330 // bulk edited, like selectAllOnFocus does. Returns true even if text is empty. 8331 selectAllText(); 8332 return true; 8333 8334 case ID_PASTE: 8335 paste(min, max); 8336 return true; 8337 8338 case ID_CUT: 8339 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 8340 deleteText_internal(min, max); 8341 stopSelectionActionMode(); 8342 return true; 8343 8344 case ID_COPY: 8345 setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max))); 8346 stopSelectionActionMode(); 8347 return true; 8348 } 8349 return false; 8350 } 8351 8352 CharSequence getTransformedText(int start, int end) { 8353 return removeSuggestionSpans(mTransformed.subSequence(start, end)); 8354 } 8355 8356 @Override 8357 public boolean performLongClick() { 8358 boolean handled = false; 8359 8360 if (super.performLongClick()) { 8361 handled = true; 8362 } 8363 8364 if (mEditor != null) { 8365 handled |= mEditor.performLongClick(handled); 8366 } 8367 8368 if (handled) { 8369 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 8370 if (mEditor != null) mEditor.mDiscardNextActionUp = true; 8371 } 8372 8373 return handled; 8374 } 8375 8376 @Override 8377 protected void onScrollChanged(int horiz, int vert, int oldHoriz, int oldVert) { 8378 super.onScrollChanged(horiz, vert, oldHoriz, oldVert); 8379 if (mEditor != null) { 8380 mEditor.onScrollChanged(); 8381 } 8382 } 8383 8384 /** 8385 * Return whether or not suggestions are enabled on this TextView. The suggestions are generated 8386 * by the IME or by the spell checker as the user types. This is done by adding 8387 * {@link SuggestionSpan}s to the text. 8388 * 8389 * When suggestions are enabled (default), this list of suggestions will be displayed when the 8390 * user asks for them on these parts of the text. This value depends on the inputType of this 8391 * TextView. 8392 * 8393 * The class of the input type must be {@link InputType#TYPE_CLASS_TEXT}. 8394 * 8395 * In addition, the type variation must be one of 8396 * {@link InputType#TYPE_TEXT_VARIATION_NORMAL}, 8397 * {@link InputType#TYPE_TEXT_VARIATION_EMAIL_SUBJECT}, 8398 * {@link InputType#TYPE_TEXT_VARIATION_LONG_MESSAGE}, 8399 * {@link InputType#TYPE_TEXT_VARIATION_SHORT_MESSAGE} or 8400 * {@link InputType#TYPE_TEXT_VARIATION_WEB_EDIT_TEXT}. 8401 * 8402 * And finally, the {@link InputType#TYPE_TEXT_FLAG_NO_SUGGESTIONS} flag must <i>not</i> be set. 8403 * 8404 * @return true if the suggestions popup window is enabled, based on the inputType. 8405 */ 8406 public boolean isSuggestionsEnabled() { 8407 if (mEditor == null) return false; 8408 if ((mEditor.mInputType & InputType.TYPE_MASK_CLASS) != InputType.TYPE_CLASS_TEXT) { 8409 return false; 8410 } 8411 if ((mEditor.mInputType & InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS) > 0) return false; 8412 8413 final int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION; 8414 return (variation == EditorInfo.TYPE_TEXT_VARIATION_NORMAL || 8415 variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT || 8416 variation == EditorInfo.TYPE_TEXT_VARIATION_LONG_MESSAGE || 8417 variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE || 8418 variation == EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT); 8419 } 8420 8421 /** 8422 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 8423 * selection is initiated in this View. 8424 * 8425 * The standard implementation populates the menu with a subset of Select All, Cut, Copy and 8426 * Paste actions, depending on what this View supports. 8427 * 8428 * A custom implementation can add new entries in the default menu in its 8429 * {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The 8430 * default actions can also be removed from the menu using {@link Menu#removeItem(int)} and 8431 * passing {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy} 8432 * or {@link android.R.id#paste} ids as parameters. 8433 * 8434 * Returning false from 8435 * {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will prevent 8436 * the action mode from being started. 8437 * 8438 * Action click events should be handled by the custom implementation of 8439 * {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}. 8440 * 8441 * Note that text selection mode is not started when a TextView receives focus and the 8442 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 8443 * that case, to allow for quick replacement. 8444 */ 8445 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 8446 createEditorIfNeeded(); 8447 mEditor.mCustomSelectionActionModeCallback = actionModeCallback; 8448 } 8449 8450 /** 8451 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 8452 * 8453 * @return The current custom selection callback. 8454 */ 8455 public ActionMode.Callback getCustomSelectionActionModeCallback() { 8456 return mEditor == null ? null : mEditor.mCustomSelectionActionModeCallback; 8457 } 8458 8459 /** 8460 * @hide 8461 */ 8462 protected void stopSelectionActionMode() { 8463 mEditor.stopSelectionActionMode(); 8464 } 8465 8466 boolean canCut() { 8467 if (hasPasswordTransformationMethod()) { 8468 return false; 8469 } 8470 8471 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mEditor != null && 8472 mEditor.mKeyListener != null) { 8473 return true; 8474 } 8475 8476 return false; 8477 } 8478 8479 boolean canCopy() { 8480 if (hasPasswordTransformationMethod()) { 8481 return false; 8482 } 8483 8484 if (mText.length() > 0 && hasSelection()) { 8485 return true; 8486 } 8487 8488 return false; 8489 } 8490 8491 boolean canPaste() { 8492 return (mText instanceof Editable && 8493 mEditor != null && mEditor.mKeyListener != null && 8494 getSelectionStart() >= 0 && 8495 getSelectionEnd() >= 0 && 8496 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 8497 hasPrimaryClip()); 8498 } 8499 8500 boolean selectAllText() { 8501 final int length = mText.length(); 8502 Selection.setSelection((Spannable) mText, 0, length); 8503 return length > 0; 8504 } 8505 8506 /** 8507 * Prepare text so that there are not zero or two spaces at beginning and end of region defined 8508 * by [min, max] when replacing this region by paste. 8509 * Note that if there were two spaces (or more) at that position before, they are kept. We just 8510 * make sure we do not add an extra one from the paste content. 8511 */ 8512 long prepareSpacesAroundPaste(int min, int max, CharSequence paste) { 8513 if (paste.length() > 0) { 8514 if (min > 0) { 8515 final char charBefore = mTransformed.charAt(min - 1); 8516 final char charAfter = paste.charAt(0); 8517 8518 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8519 // Two spaces at beginning of paste: remove one 8520 final int originalLength = mText.length(); 8521 deleteText_internal(min - 1, min); 8522 // Due to filters, there is no guarantee that exactly one character was 8523 // removed: count instead. 8524 final int delta = mText.length() - originalLength; 8525 min += delta; 8526 max += delta; 8527 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8528 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8529 // No space at beginning of paste: add one 8530 final int originalLength = mText.length(); 8531 replaceText_internal(min, min, " "); 8532 // Taking possible filters into account as above. 8533 final int delta = mText.length() - originalLength; 8534 min += delta; 8535 max += delta; 8536 } 8537 } 8538 8539 if (max < mText.length()) { 8540 final char charBefore = paste.charAt(paste.length() - 1); 8541 final char charAfter = mTransformed.charAt(max); 8542 8543 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8544 // Two spaces at end of paste: remove one 8545 deleteText_internal(max, max + 1); 8546 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8547 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8548 // No space at end of paste: add one 8549 replaceText_internal(max, max, " "); 8550 } 8551 } 8552 } 8553 8554 return TextUtils.packRangeInLong(min, max); 8555 } 8556 8557 /** 8558 * Paste clipboard content between min and max positions. 8559 */ 8560 private void paste(int min, int max) { 8561 ClipboardManager clipboard = 8562 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 8563 ClipData clip = clipboard.getPrimaryClip(); 8564 if (clip != null) { 8565 boolean didFirst = false; 8566 for (int i=0; i<clip.getItemCount(); i++) { 8567 CharSequence paste = clip.getItemAt(i).coerceToStyledText(getContext()); 8568 if (paste != null) { 8569 if (!didFirst) { 8570 long minMax = prepareSpacesAroundPaste(min, max, paste); 8571 min = TextUtils.unpackRangeStartFromLong(minMax); 8572 max = TextUtils.unpackRangeEndFromLong(minMax); 8573 Selection.setSelection((Spannable) mText, max); 8574 ((Editable) mText).replace(min, max, paste); 8575 didFirst = true; 8576 } else { 8577 ((Editable) mText).insert(getSelectionEnd(), "\n"); 8578 ((Editable) mText).insert(getSelectionEnd(), paste); 8579 } 8580 } 8581 } 8582 stopSelectionActionMode(); 8583 LAST_CUT_OR_COPY_TIME = 0; 8584 } 8585 } 8586 8587 private void setPrimaryClip(ClipData clip) { 8588 ClipboardManager clipboard = (ClipboardManager) getContext(). 8589 getSystemService(Context.CLIPBOARD_SERVICE); 8590 clipboard.setPrimaryClip(clip); 8591 LAST_CUT_OR_COPY_TIME = SystemClock.uptimeMillis(); 8592 } 8593 8594 /** 8595 * Get the character offset closest to the specified absolute position. A typical use case is to 8596 * pass the result of {@link MotionEvent#getX()} and {@link MotionEvent#getY()} to this method. 8597 * 8598 * @param x The horizontal absolute position of a point on screen 8599 * @param y The vertical absolute position of a point on screen 8600 * @return the character offset for the character whose position is closest to the specified 8601 * position. Returns -1 if there is no layout. 8602 */ 8603 public int getOffsetForPosition(float x, float y) { 8604 if (getLayout() == null) return -1; 8605 final int line = getLineAtCoordinate(y); 8606 final int offset = getOffsetAtCoordinate(line, x); 8607 return offset; 8608 } 8609 8610 float convertToLocalHorizontalCoordinate(float x) { 8611 x -= getTotalPaddingLeft(); 8612 // Clamp the position to inside of the view. 8613 x = Math.max(0.0f, x); 8614 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 8615 x += getScrollX(); 8616 return x; 8617 } 8618 8619 int getLineAtCoordinate(float y) { 8620 y -= getTotalPaddingTop(); 8621 // Clamp the position to inside of the view. 8622 y = Math.max(0.0f, y); 8623 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 8624 y += getScrollY(); 8625 return getLayout().getLineForVertical((int) y); 8626 } 8627 8628 private int getOffsetAtCoordinate(int line, float x) { 8629 x = convertToLocalHorizontalCoordinate(x); 8630 return getLayout().getOffsetForHorizontal(line, x); 8631 } 8632 8633 @Override 8634 public boolean onDragEvent(DragEvent event) { 8635 switch (event.getAction()) { 8636 case DragEvent.ACTION_DRAG_STARTED: 8637 return mEditor != null && mEditor.hasInsertionController(); 8638 8639 case DragEvent.ACTION_DRAG_ENTERED: 8640 TextView.this.requestFocus(); 8641 return true; 8642 8643 case DragEvent.ACTION_DRAG_LOCATION: 8644 final int offset = getOffsetForPosition(event.getX(), event.getY()); 8645 Selection.setSelection((Spannable)mText, offset); 8646 return true; 8647 8648 case DragEvent.ACTION_DROP: 8649 if (mEditor != null) mEditor.onDrop(event); 8650 return true; 8651 8652 case DragEvent.ACTION_DRAG_ENDED: 8653 case DragEvent.ACTION_DRAG_EXITED: 8654 default: 8655 return true; 8656 } 8657 } 8658 8659 boolean isInBatchEditMode() { 8660 if (mEditor == null) return false; 8661 final Editor.InputMethodState ims = mEditor.mInputMethodState; 8662 if (ims != null) { 8663 return ims.mBatchEditNesting > 0; 8664 } 8665 return mEditor.mInBatchEditControllers; 8666 } 8667 8668 @Override 8669 public void onRtlPropertiesChanged(int layoutDirection) { 8670 super.onRtlPropertiesChanged(layoutDirection); 8671 8672 mTextDir = getTextDirectionHeuristic(); 8673 } 8674 8675 TextDirectionHeuristic getTextDirectionHeuristic() { 8676 if (hasPasswordTransformationMethod()) { 8677 // passwords fields should be LTR 8678 return TextDirectionHeuristics.LTR; 8679 } 8680 8681 // Always need to resolve layout direction first 8682 final boolean defaultIsRtl = (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 8683 8684 // Now, we can select the heuristic 8685 switch (getTextDirection()) { 8686 default: 8687 case TEXT_DIRECTION_FIRST_STRONG: 8688 return (defaultIsRtl ? TextDirectionHeuristics.FIRSTSTRONG_RTL : 8689 TextDirectionHeuristics.FIRSTSTRONG_LTR); 8690 case TEXT_DIRECTION_ANY_RTL: 8691 return TextDirectionHeuristics.ANYRTL_LTR; 8692 case TEXT_DIRECTION_LTR: 8693 return TextDirectionHeuristics.LTR; 8694 case TEXT_DIRECTION_RTL: 8695 return TextDirectionHeuristics.RTL; 8696 case TEXT_DIRECTION_LOCALE: 8697 return TextDirectionHeuristics.LOCALE; 8698 } 8699 } 8700 8701 /** 8702 * @hide 8703 */ 8704 @Override 8705 public void onResolveDrawables(int layoutDirection) { 8706 // No need to resolve twice 8707 if (mLastLayoutDirection == layoutDirection) { 8708 return; 8709 } 8710 mLastLayoutDirection = layoutDirection; 8711 8712 // Resolve drawables 8713 if (mDrawables != null) { 8714 mDrawables.resolveWithLayoutDirection(layoutDirection); 8715 } 8716 } 8717 8718 /** 8719 * @hide 8720 */ 8721 protected void resetResolvedDrawables() { 8722 super.resetResolvedDrawables(); 8723 mLastLayoutDirection = -1; 8724 } 8725 8726 /** 8727 * @hide 8728 */ 8729 protected void viewClicked(InputMethodManager imm) { 8730 if (imm != null) { 8731 imm.viewClicked(this); 8732 } 8733 } 8734 8735 /** 8736 * Deletes the range of text [start, end[. 8737 * @hide 8738 */ 8739 protected void deleteText_internal(int start, int end) { 8740 ((Editable) mText).delete(start, end); 8741 } 8742 8743 /** 8744 * Replaces the range of text [start, end[ by replacement text 8745 * @hide 8746 */ 8747 protected void replaceText_internal(int start, int end, CharSequence text) { 8748 ((Editable) mText).replace(start, end, text); 8749 } 8750 8751 /** 8752 * Sets a span on the specified range of text 8753 * @hide 8754 */ 8755 protected void setSpan_internal(Object span, int start, int end, int flags) { 8756 ((Editable) mText).setSpan(span, start, end, flags); 8757 } 8758 8759 /** 8760 * Moves the cursor to the specified offset position in text 8761 * @hide 8762 */ 8763 protected void setCursorPosition_internal(int start, int end) { 8764 Selection.setSelection(((Editable) mText), start, end); 8765 } 8766 8767 /** 8768 * An Editor should be created as soon as any of the editable-specific fields (grouped 8769 * inside the Editor object) is assigned to a non-default value. 8770 * This method will create the Editor if needed. 8771 * 8772 * A standard TextView (as well as buttons, checkboxes...) should not qualify and hence will 8773 * have a null Editor, unlike an EditText. Inconsistent in-between states will have an 8774 * Editor for backward compatibility, as soon as one of these fields is assigned. 8775 * 8776 * Also note that for performance reasons, the mEditor is created when needed, but not 8777 * reset when no more edit-specific fields are needed. 8778 */ 8779 private void createEditorIfNeeded() { 8780 if (mEditor == null) { 8781 mEditor = new Editor(this); 8782 } 8783 } 8784 8785 /** 8786 * @hide 8787 */ 8788 @Override 8789 public CharSequence getIterableTextForAccessibility() { 8790 if (!(mText instanceof Spannable)) { 8791 setText(mText, BufferType.SPANNABLE); 8792 } 8793 return mText; 8794 } 8795 8796 /** 8797 * @hide 8798 */ 8799 @Override 8800 public TextSegmentIterator getIteratorForGranularity(int granularity) { 8801 switch (granularity) { 8802 case AccessibilityNodeInfo.MOVEMENT_GRANULARITY_LINE: { 8803 Spannable text = (Spannable) getIterableTextForAccessibility(); 8804 if (!TextUtils.isEmpty(text) && getLayout() != null) { 8805 AccessibilityIterators.LineTextSegmentIterator iterator = 8806 AccessibilityIterators.LineTextSegmentIterator.getInstance(); 8807 iterator.initialize(text, getLayout()); 8808 return iterator; 8809 } 8810 } break; 8811 case AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PAGE: { 8812 Spannable text = (Spannable) getIterableTextForAccessibility(); 8813 if (!TextUtils.isEmpty(text) && getLayout() != null) { 8814 AccessibilityIterators.PageTextSegmentIterator iterator = 8815 AccessibilityIterators.PageTextSegmentIterator.getInstance(); 8816 iterator.initialize(this); 8817 return iterator; 8818 } 8819 } break; 8820 } 8821 return super.getIteratorForGranularity(granularity); 8822 } 8823 8824 /** 8825 * @hide 8826 */ 8827 @Override 8828 public int getAccessibilitySelectionStart() { 8829 return getSelectionStart(); 8830 } 8831 8832 /** 8833 * @hide 8834 */ 8835 public boolean isAccessibilitySelectionExtendable() { 8836 return true; 8837 } 8838 8839 /** 8840 * @hide 8841 */ 8842 @Override 8843 public int getAccessibilitySelectionEnd() { 8844 return getSelectionEnd(); 8845 } 8846 8847 /** 8848 * @hide 8849 */ 8850 @Override 8851 public void setAccessibilitySelection(int start, int end) { 8852 if (getAccessibilitySelectionStart() == start 8853 && getAccessibilitySelectionEnd() == end) { 8854 return; 8855 } 8856 // Hide all selection controllers used for adjusting selection 8857 // since we are doing so explicitlty by other means and these 8858 // controllers interact with how selection behaves. 8859 if (mEditor != null) { 8860 mEditor.hideControllers(); 8861 } 8862 CharSequence text = getIterableTextForAccessibility(); 8863 if (Math.min(start, end) >= 0 && Math.max(start, end) <= text.length()) { 8864 Selection.setSelection((Spannable) text, start, end); 8865 } else { 8866 Selection.removeSelection((Spannable) text); 8867 } 8868 } 8869 8870 /** 8871 * User interface state that is stored by TextView for implementing 8872 * {@link View#onSaveInstanceState}. 8873 */ 8874 public static class SavedState extends BaseSavedState { 8875 int selStart; 8876 int selEnd; 8877 CharSequence text; 8878 boolean frozenWithFocus; 8879 CharSequence error; 8880 8881 SavedState(Parcelable superState) { 8882 super(superState); 8883 } 8884 8885 @Override 8886 public void writeToParcel(Parcel out, int flags) { 8887 super.writeToParcel(out, flags); 8888 out.writeInt(selStart); 8889 out.writeInt(selEnd); 8890 out.writeInt(frozenWithFocus ? 1 : 0); 8891 TextUtils.writeToParcel(text, out, flags); 8892 8893 if (error == null) { 8894 out.writeInt(0); 8895 } else { 8896 out.writeInt(1); 8897 TextUtils.writeToParcel(error, out, flags); 8898 } 8899 } 8900 8901 @Override 8902 public String toString() { 8903 String str = "TextView.SavedState{" 8904 + Integer.toHexString(System.identityHashCode(this)) 8905 + " start=" + selStart + " end=" + selEnd; 8906 if (text != null) { 8907 str += " text=" + text; 8908 } 8909 return str + "}"; 8910 } 8911 8912 @SuppressWarnings("hiding") 8913 public static final Parcelable.Creator<SavedState> CREATOR 8914 = new Parcelable.Creator<SavedState>() { 8915 public SavedState createFromParcel(Parcel in) { 8916 return new SavedState(in); 8917 } 8918 8919 public SavedState[] newArray(int size) { 8920 return new SavedState[size]; 8921 } 8922 }; 8923 8924 private SavedState(Parcel in) { 8925 super(in); 8926 selStart = in.readInt(); 8927 selEnd = in.readInt(); 8928 frozenWithFocus = (in.readInt() != 0); 8929 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 8930 8931 if (in.readInt() != 0) { 8932 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 8933 } 8934 } 8935 } 8936 8937 private static class CharWrapper implements CharSequence, GetChars, GraphicsOperations { 8938 private char[] mChars; 8939 private int mStart, mLength; 8940 8941 public CharWrapper(char[] chars, int start, int len) { 8942 mChars = chars; 8943 mStart = start; 8944 mLength = len; 8945 } 8946 8947 /* package */ void set(char[] chars, int start, int len) { 8948 mChars = chars; 8949 mStart = start; 8950 mLength = len; 8951 } 8952 8953 public int length() { 8954 return mLength; 8955 } 8956 8957 public char charAt(int off) { 8958 return mChars[off + mStart]; 8959 } 8960 8961 @Override 8962 public String toString() { 8963 return new String(mChars, mStart, mLength); 8964 } 8965 8966 public CharSequence subSequence(int start, int end) { 8967 if (start < 0 || end < 0 || start > mLength || end > mLength) { 8968 throw new IndexOutOfBoundsException(start + ", " + end); 8969 } 8970 8971 return new String(mChars, start + mStart, end - start); 8972 } 8973 8974 public void getChars(int start, int end, char[] buf, int off) { 8975 if (start < 0 || end < 0 || start > mLength || end > mLength) { 8976 throw new IndexOutOfBoundsException(start + ", " + end); 8977 } 8978 8979 System.arraycopy(mChars, start + mStart, buf, off, end - start); 8980 } 8981 8982 public void drawText(Canvas c, int start, int end, 8983 float x, float y, Paint p) { 8984 c.drawText(mChars, start + mStart, end - start, x, y, p); 8985 } 8986 8987 public void drawTextRun(Canvas c, int start, int end, 8988 int contextStart, int contextEnd, float x, float y, int flags, Paint p) { 8989 int count = end - start; 8990 int contextCount = contextEnd - contextStart; 8991 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 8992 contextCount, x, y, flags, p); 8993 } 8994 8995 public float measureText(int start, int end, Paint p) { 8996 return p.measureText(mChars, start + mStart, end - start); 8997 } 8998 8999 public int getTextWidths(int start, int end, float[] widths, Paint p) { 9000 return p.getTextWidths(mChars, start + mStart, end - start, widths); 9001 } 9002 9003 public float getTextRunAdvances(int start, int end, int contextStart, 9004 int contextEnd, int flags, float[] advances, int advancesIndex, 9005 Paint p) { 9006 int count = end - start; 9007 int contextCount = contextEnd - contextStart; 9008 return p.getTextRunAdvances(mChars, start + mStart, count, 9009 contextStart + mStart, contextCount, flags, advances, 9010 advancesIndex); 9011 } 9012 9013 public int getTextRunCursor(int contextStart, int contextEnd, int flags, 9014 int offset, int cursorOpt, Paint p) { 9015 int contextCount = contextEnd - contextStart; 9016 return p.getTextRunCursor(mChars, contextStart + mStart, 9017 contextCount, flags, offset + mStart, cursorOpt); 9018 } 9019 } 9020 9021 private static final class Marquee extends Handler { 9022 // TODO: Add an option to configure this 9023 private static final float MARQUEE_DELTA_MAX = 0.07f; 9024 private static final int MARQUEE_DELAY = 1200; 9025 private static final int MARQUEE_RESTART_DELAY = 1200; 9026 private static final int MARQUEE_RESOLUTION = 1000 / 30; 9027 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 9028 9029 private static final byte MARQUEE_STOPPED = 0x0; 9030 private static final byte MARQUEE_STARTING = 0x1; 9031 private static final byte MARQUEE_RUNNING = 0x2; 9032 9033 private static final int MESSAGE_START = 0x1; 9034 private static final int MESSAGE_TICK = 0x2; 9035 private static final int MESSAGE_RESTART = 0x3; 9036 9037 private final WeakReference<TextView> mView; 9038 9039 private byte mStatus = MARQUEE_STOPPED; 9040 private final float mScrollUnit; 9041 private float mMaxScroll; 9042 private float mMaxFadeScroll; 9043 private float mGhostStart; 9044 private float mGhostOffset; 9045 private float mFadeStop; 9046 private int mRepeatLimit; 9047 9048 private float mScroll; 9049 9050 Marquee(TextView v) { 9051 final float density = v.getContext().getResources().getDisplayMetrics().density; 9052 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 9053 mView = new WeakReference<TextView>(v); 9054 } 9055 9056 @Override 9057 public void handleMessage(Message msg) { 9058 switch (msg.what) { 9059 case MESSAGE_START: 9060 mStatus = MARQUEE_RUNNING; 9061 tick(); 9062 break; 9063 case MESSAGE_TICK: 9064 tick(); 9065 break; 9066 case MESSAGE_RESTART: 9067 if (mStatus == MARQUEE_RUNNING) { 9068 if (mRepeatLimit >= 0) { 9069 mRepeatLimit--; 9070 } 9071 start(mRepeatLimit); 9072 } 9073 break; 9074 } 9075 } 9076 9077 void tick() { 9078 if (mStatus != MARQUEE_RUNNING) { 9079 return; 9080 } 9081 9082 removeMessages(MESSAGE_TICK); 9083 9084 final TextView textView = mView.get(); 9085 if (textView != null && (textView.isFocused() || textView.isSelected())) { 9086 mScroll += mScrollUnit; 9087 if (mScroll > mMaxScroll) { 9088 mScroll = mMaxScroll; 9089 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 9090 } else { 9091 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 9092 } 9093 textView.invalidate(); 9094 } 9095 } 9096 9097 void stop() { 9098 mStatus = MARQUEE_STOPPED; 9099 removeMessages(MESSAGE_START); 9100 removeMessages(MESSAGE_RESTART); 9101 removeMessages(MESSAGE_TICK); 9102 resetScroll(); 9103 } 9104 9105 private void resetScroll() { 9106 mScroll = 0.0f; 9107 final TextView textView = mView.get(); 9108 if (textView != null) textView.invalidate(); 9109 } 9110 9111 void start(int repeatLimit) { 9112 if (repeatLimit == 0) { 9113 stop(); 9114 return; 9115 } 9116 mRepeatLimit = repeatLimit; 9117 final TextView textView = mView.get(); 9118 if (textView != null && textView.mLayout != null) { 9119 mStatus = MARQUEE_STARTING; 9120 mScroll = 0.0f; 9121 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 9122 textView.getCompoundPaddingRight(); 9123 final float lineWidth = textView.mLayout.getLineWidth(0); 9124 final float gap = textWidth / 3.0f; 9125 mGhostStart = lineWidth - textWidth + gap; 9126 mMaxScroll = mGhostStart + textWidth; 9127 mGhostOffset = lineWidth + gap; 9128 mFadeStop = lineWidth + textWidth / 6.0f; 9129 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 9130 9131 textView.invalidate(); 9132 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 9133 } 9134 } 9135 9136 float getGhostOffset() { 9137 return mGhostOffset; 9138 } 9139 9140 float getScroll() { 9141 return mScroll; 9142 } 9143 9144 float getMaxFadeScroll() { 9145 return mMaxFadeScroll; 9146 } 9147 9148 boolean shouldDrawLeftFade() { 9149 return mScroll <= mFadeStop; 9150 } 9151 9152 boolean shouldDrawGhost() { 9153 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 9154 } 9155 9156 boolean isRunning() { 9157 return mStatus == MARQUEE_RUNNING; 9158 } 9159 9160 boolean isStopped() { 9161 return mStatus == MARQUEE_STOPPED; 9162 } 9163 } 9164 9165 private class ChangeWatcher implements TextWatcher, SpanWatcher { 9166 9167 private CharSequence mBeforeText; 9168 9169 public void beforeTextChanged(CharSequence buffer, int start, 9170 int before, int after) { 9171 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 9172 + " before=" + before + " after=" + after + ": " + buffer); 9173 9174 if (AccessibilityManager.getInstance(mContext).isEnabled() 9175 && ((!isPasswordInputType(getInputType()) && !hasPasswordTransformationMethod()) 9176 || shouldSpeakPasswordsForAccessibility())) { 9177 mBeforeText = buffer.toString(); 9178 } 9179 9180 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 9181 } 9182 9183 public void onTextChanged(CharSequence buffer, int start, int before, int after) { 9184 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 9185 + " before=" + before + " after=" + after + ": " + buffer); 9186 TextView.this.handleTextChanged(buffer, start, before, after); 9187 9188 if (AccessibilityManager.getInstance(mContext).isEnabled() && 9189 (isFocused() || isSelected() && isShown())) { 9190 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 9191 mBeforeText = null; 9192 } 9193 } 9194 9195 public void afterTextChanged(Editable buffer) { 9196 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 9197 TextView.this.sendAfterTextChanged(buffer); 9198 9199 if (MetaKeyKeyListener.getMetaState(buffer, MetaKeyKeyListener.META_SELECTING) != 0) { 9200 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 9201 } 9202 } 9203 9204 public void onSpanChanged(Spannable buf, Object what, int s, int e, int st, int en) { 9205 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 9206 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 9207 TextView.this.spanChange(buf, what, s, st, e, en); 9208 } 9209 9210 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 9211 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 9212 + " what=" + what + ": " + buf); 9213 TextView.this.spanChange(buf, what, -1, s, -1, e); 9214 } 9215 9216 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 9217 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 9218 + " what=" + what + ": " + buf); 9219 TextView.this.spanChange(buf, what, s, -1, e, -1); 9220 } 9221 } 9222} 9223