TextView.java revision 02d2b3ba9ba830a8147db2739613f7bbb2d0fcbf
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.widget; 18 19import com.android.internal.util.FastMath; 20import com.android.internal.widget.EditableInputConnection; 21 22import org.xmlpull.v1.XmlPullParserException; 23 24import android.R; 25import android.content.ClipData; 26import android.content.ClipData.Item; 27import android.content.ClipboardManager; 28import android.content.Context; 29import android.content.pm.PackageManager; 30import android.content.res.ColorStateList; 31import android.content.res.Resources; 32import android.content.res.TypedArray; 33import android.content.res.XmlResourceParser; 34import android.graphics.Canvas; 35import android.graphics.Color; 36import android.graphics.Paint; 37import android.graphics.Path; 38import android.graphics.Rect; 39import android.graphics.RectF; 40import android.graphics.Typeface; 41import android.graphics.drawable.Drawable; 42import android.inputmethodservice.ExtractEditText; 43import android.net.Uri; 44import android.os.Bundle; 45import android.os.Handler; 46import android.os.Message; 47import android.os.Parcel; 48import android.os.Parcelable; 49import android.os.ResultReceiver; 50import android.os.SystemClock; 51import android.text.BoringLayout; 52import android.text.DynamicLayout; 53import android.text.Editable; 54import android.text.GetChars; 55import android.text.GraphicsOperations; 56import android.text.InputFilter; 57import android.text.InputType; 58import android.text.Layout; 59import android.text.ParcelableSpan; 60import android.text.Selection; 61import android.text.SpanWatcher; 62import android.text.Spannable; 63import android.text.SpannableString; 64import android.text.Spanned; 65import android.text.SpannedString; 66import android.text.StaticLayout; 67import android.text.TextPaint; 68import android.text.TextUtils; 69import android.text.TextWatcher; 70import android.text.method.ArrowKeyMovementMethod; 71import android.text.method.DateKeyListener; 72import android.text.method.DateTimeKeyListener; 73import android.text.method.DialerKeyListener; 74import android.text.method.DigitsKeyListener; 75import android.text.method.KeyListener; 76import android.text.method.LinkMovementMethod; 77import android.text.method.MetaKeyKeyListener; 78import android.text.method.MovementMethod; 79import android.text.method.PasswordTransformationMethod; 80import android.text.method.SingleLineTransformationMethod; 81import android.text.method.TextKeyListener; 82import android.text.method.TimeKeyListener; 83import android.text.method.TransformationMethod; 84import android.text.style.ClickableSpan; 85import android.text.style.ParagraphStyle; 86import android.text.style.URLSpan; 87import android.text.style.UpdateAppearance; 88import android.text.util.Linkify; 89import android.util.AttributeSet; 90import android.util.FloatMath; 91import android.util.Log; 92import android.util.TypedValue; 93import android.view.ActionMode; 94import android.view.ActionMode.Callback; 95import android.view.ContextMenu; 96import android.view.DragEvent; 97import android.view.Gravity; 98import android.view.HapticFeedbackConstants; 99import android.view.KeyCharacterMap; 100import android.view.KeyEvent; 101import android.view.LayoutInflater; 102import android.view.Menu; 103import android.view.MenuItem; 104import android.view.MotionEvent; 105import android.view.View; 106import android.view.ViewConfiguration; 107import android.view.ViewDebug; 108import android.view.ViewGroup; 109import android.view.ViewGroup.LayoutParams; 110import android.view.ViewParent; 111import android.view.ViewRoot; 112import android.view.ViewTreeObserver; 113import android.view.WindowManager; 114import android.view.accessibility.AccessibilityEvent; 115import android.view.accessibility.AccessibilityManager; 116import android.view.animation.AnimationUtils; 117import android.view.inputmethod.BaseInputConnection; 118import android.view.inputmethod.CompletionInfo; 119import android.view.inputmethod.CorrectionInfo; 120import android.view.inputmethod.EditorInfo; 121import android.view.inputmethod.ExtractedText; 122import android.view.inputmethod.ExtractedTextRequest; 123import android.view.inputmethod.InputConnection; 124import android.view.inputmethod.InputMethodManager; 125import android.widget.RemoteViews.RemoteView; 126 127import java.io.IOException; 128import java.lang.ref.WeakReference; 129import java.util.ArrayList; 130 131/** 132 * Displays text to the user and optionally allows them to edit it. A TextView 133 * is a complete text editor, however the basic class is configured to not 134 * allow editing; see {@link EditText} for a subclass that configures the text 135 * view for editing. 136 * 137 * <p> 138 * <b>XML attributes</b> 139 * <p> 140 * See {@link android.R.styleable#TextView TextView Attributes}, 141 * {@link android.R.styleable#View View Attributes} 142 * 143 * @attr ref android.R.styleable#TextView_text 144 * @attr ref android.R.styleable#TextView_bufferType 145 * @attr ref android.R.styleable#TextView_hint 146 * @attr ref android.R.styleable#TextView_textColor 147 * @attr ref android.R.styleable#TextView_textColorHighlight 148 * @attr ref android.R.styleable#TextView_textColorHint 149 * @attr ref android.R.styleable#TextView_textAppearance 150 * @attr ref android.R.styleable#TextView_textColorLink 151 * @attr ref android.R.styleable#TextView_textSize 152 * @attr ref android.R.styleable#TextView_textScaleX 153 * @attr ref android.R.styleable#TextView_typeface 154 * @attr ref android.R.styleable#TextView_textStyle 155 * @attr ref android.R.styleable#TextView_cursorVisible 156 * @attr ref android.R.styleable#TextView_maxLines 157 * @attr ref android.R.styleable#TextView_maxHeight 158 * @attr ref android.R.styleable#TextView_lines 159 * @attr ref android.R.styleable#TextView_height 160 * @attr ref android.R.styleable#TextView_minLines 161 * @attr ref android.R.styleable#TextView_minHeight 162 * @attr ref android.R.styleable#TextView_maxEms 163 * @attr ref android.R.styleable#TextView_maxWidth 164 * @attr ref android.R.styleable#TextView_ems 165 * @attr ref android.R.styleable#TextView_width 166 * @attr ref android.R.styleable#TextView_minEms 167 * @attr ref android.R.styleable#TextView_minWidth 168 * @attr ref android.R.styleable#TextView_gravity 169 * @attr ref android.R.styleable#TextView_scrollHorizontally 170 * @attr ref android.R.styleable#TextView_password 171 * @attr ref android.R.styleable#TextView_singleLine 172 * @attr ref android.R.styleable#TextView_selectAllOnFocus 173 * @attr ref android.R.styleable#TextView_includeFontPadding 174 * @attr ref android.R.styleable#TextView_maxLength 175 * @attr ref android.R.styleable#TextView_shadowColor 176 * @attr ref android.R.styleable#TextView_shadowDx 177 * @attr ref android.R.styleable#TextView_shadowDy 178 * @attr ref android.R.styleable#TextView_shadowRadius 179 * @attr ref android.R.styleable#TextView_autoLink 180 * @attr ref android.R.styleable#TextView_linksClickable 181 * @attr ref android.R.styleable#TextView_numeric 182 * @attr ref android.R.styleable#TextView_digits 183 * @attr ref android.R.styleable#TextView_phoneNumber 184 * @attr ref android.R.styleable#TextView_inputMethod 185 * @attr ref android.R.styleable#TextView_capitalize 186 * @attr ref android.R.styleable#TextView_autoText 187 * @attr ref android.R.styleable#TextView_editable 188 * @attr ref android.R.styleable#TextView_freezesText 189 * @attr ref android.R.styleable#TextView_ellipsize 190 * @attr ref android.R.styleable#TextView_drawableTop 191 * @attr ref android.R.styleable#TextView_drawableBottom 192 * @attr ref android.R.styleable#TextView_drawableRight 193 * @attr ref android.R.styleable#TextView_drawableLeft 194 * @attr ref android.R.styleable#TextView_drawablePadding 195 * @attr ref android.R.styleable#TextView_lineSpacingExtra 196 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 197 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 198 * @attr ref android.R.styleable#TextView_inputType 199 * @attr ref android.R.styleable#TextView_imeOptions 200 * @attr ref android.R.styleable#TextView_privateImeOptions 201 * @attr ref android.R.styleable#TextView_imeActionLabel 202 * @attr ref android.R.styleable#TextView_imeActionId 203 * @attr ref android.R.styleable#TextView_editorExtras 204 */ 205@RemoteView 206public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 207 static final String LOG_TAG = "TextView"; 208 static final boolean DEBUG_EXTRACT = false; 209 210 private static final int PRIORITY = 100; 211 private int mCurrentAlpha = 255; 212 213 final int[] mTempCoords = new int[2]; 214 Rect mTempRect; 215 216 private ColorStateList mTextColor; 217 private int mCurTextColor; 218 private ColorStateList mHintTextColor; 219 private ColorStateList mLinkTextColor; 220 private int mCurHintTextColor; 221 private boolean mFreezesText; 222 private boolean mFrozenWithFocus; 223 private boolean mTemporaryDetach; 224 private boolean mDispatchTemporaryDetach; 225 226 private boolean mDiscardNextActionUp = false; 227 private boolean mIgnoreActionUpEvent = false; 228 229 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 230 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 231 232 private float mShadowRadius, mShadowDx, mShadowDy; 233 234 private static final int PREDRAW_NOT_REGISTERED = 0; 235 private static final int PREDRAW_PENDING = 1; 236 private static final int PREDRAW_DONE = 2; 237 private int mPreDrawState = PREDRAW_NOT_REGISTERED; 238 239 private TextUtils.TruncateAt mEllipsize = null; 240 241 // Enum for the "typeface" XML parameter. 242 // TODO: How can we get this from the XML instead of hardcoding it here? 243 private static final int SANS = 1; 244 private static final int SERIF = 2; 245 private static final int MONOSPACE = 3; 246 247 // Bitfield for the "numeric" XML parameter. 248 // TODO: How can we get this from the XML instead of hardcoding it here? 249 private static final int SIGNED = 2; 250 private static final int DECIMAL = 4; 251 252 class Drawables { 253 final Rect mCompoundRect = new Rect(); 254 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight; 255 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight; 256 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight; 257 int mDrawablePadding; 258 } 259 private Drawables mDrawables; 260 261 private CharSequence mError; 262 private boolean mErrorWasChanged; 263 private ErrorPopup mPopup; 264 /** 265 * This flag is set if the TextView tries to display an error before it 266 * is attached to the window (so its position is still unknown). 267 * It causes the error to be shown later, when onAttachedToWindow() 268 * is called. 269 */ 270 private boolean mShowErrorAfterAttach; 271 272 private CharWrapper mCharWrapper = null; 273 274 private boolean mSelectionMoved = false; 275 private boolean mTouchFocusSelected = false; 276 277 private Marquee mMarquee; 278 private boolean mRestartMarquee; 279 280 private int mMarqueeRepeatLimit = 3; 281 282 class InputContentType { 283 int imeOptions = EditorInfo.IME_NULL; 284 String privateImeOptions; 285 CharSequence imeActionLabel; 286 int imeActionId; 287 Bundle extras; 288 OnEditorActionListener onEditorActionListener; 289 boolean enterDown; 290 } 291 InputContentType mInputContentType; 292 293 class InputMethodState { 294 Rect mCursorRectInWindow = new Rect(); 295 RectF mTmpRectF = new RectF(); 296 float[] mTmpOffset = new float[2]; 297 ExtractedTextRequest mExtracting; 298 final ExtractedText mTmpExtracted = new ExtractedText(); 299 int mBatchEditNesting; 300 boolean mCursorChanged; 301 boolean mSelectionModeChanged; 302 boolean mContentChanged; 303 int mChangedStart, mChangedEnd, mChangedDelta; 304 } 305 InputMethodState mInputMethodState; 306 307 int mTextSelectHandleLeftRes; 308 int mTextSelectHandleRightRes; 309 int mTextSelectHandleRes; 310 int mTextEditPasteWindowLayout; 311 int mTextEditNoPasteWindowLayout; 312 313 Drawable mSelectHandleLeft; 314 Drawable mSelectHandleRight; 315 Drawable mSelectHandleCenter; 316 317 private int mLastDownPositionX, mLastDownPositionY; 318 private Callback mCustomSelectionActionModeCallback; 319 320 private final int mSquaredTouchSlopDistance; 321 // Set when this TextView gained focus with some text selected. Will start selection mode. 322 private boolean mCreatedWithASelection = false; 323 324 /* 325 * Kick-start the font cache for the zygote process (to pay the cost of 326 * initializing freetype for our default font only once). 327 */ 328 static { 329 Paint p = new Paint(); 330 p.setAntiAlias(true); 331 // We don't care about the result, just the side-effect of measuring. 332 p.measureText("H"); 333 } 334 335 /** 336 * Interface definition for a callback to be invoked when an action is 337 * performed on the editor. 338 */ 339 public interface OnEditorActionListener { 340 /** 341 * Called when an action is being performed. 342 * 343 * @param v The view that was clicked. 344 * @param actionId Identifier of the action. This will be either the 345 * identifier you supplied, or {@link EditorInfo#IME_NULL 346 * EditorInfo.IME_NULL} if being called due to the enter key 347 * being pressed. 348 * @param event If triggered by an enter key, this is the event; 349 * otherwise, this is null. 350 * @return Return true if you have consumed the action, else false. 351 */ 352 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 353 } 354 355 public TextView(Context context) { 356 this(context, null); 357 } 358 359 public TextView(Context context, 360 AttributeSet attrs) { 361 this(context, attrs, com.android.internal.R.attr.textViewStyle); 362 } 363 364 @SuppressWarnings("deprecation") 365 public TextView(Context context, 366 AttributeSet attrs, 367 int defStyle) { 368 super(context, attrs, defStyle); 369 mText = ""; 370 371 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 372 mTextPaint.density = getResources().getDisplayMetrics().density; 373 mTextPaint.setCompatibilityScaling( 374 getResources().getCompatibilityInfo().applicationScale); 375 376 // If we get the paint from the skin, we should set it to left, since 377 // the layout always wants it to be left. 378 // mTextPaint.setTextAlign(Paint.Align.LEFT); 379 380 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 381 mHighlightPaint.setCompatibilityScaling( 382 getResources().getCompatibilityInfo().applicationScale); 383 384 mMovement = getDefaultMovementMethod(); 385 mTransformation = null; 386 387 TypedArray a = 388 context.obtainStyledAttributes( 389 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 390 391 int textColorHighlight = 0; 392 ColorStateList textColor = null; 393 ColorStateList textColorHint = null; 394 ColorStateList textColorLink = null; 395 int textSize = 15; 396 int typefaceIndex = -1; 397 int styleIndex = -1; 398 399 /* 400 * Look the appearance up without checking first if it exists because 401 * almost every TextView has one and it greatly simplifies the logic 402 * to be able to parse the appearance first and then let specific tags 403 * for this View override it. 404 */ 405 TypedArray appearance = null; 406 int ap = a.getResourceId(com.android.internal.R.styleable.TextView_textAppearance, -1); 407 if (ap != -1) { 408 appearance = context.obtainStyledAttributes(ap, 409 com.android.internal.R.styleable. 410 TextAppearance); 411 } 412 if (appearance != null) { 413 int n = appearance.getIndexCount(); 414 for (int i = 0; i < n; i++) { 415 int attr = appearance.getIndex(i); 416 417 switch (attr) { 418 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 419 textColorHighlight = appearance.getColor(attr, textColorHighlight); 420 break; 421 422 case com.android.internal.R.styleable.TextAppearance_textColor: 423 textColor = appearance.getColorStateList(attr); 424 break; 425 426 case com.android.internal.R.styleable.TextAppearance_textColorHint: 427 textColorHint = appearance.getColorStateList(attr); 428 break; 429 430 case com.android.internal.R.styleable.TextAppearance_textColorLink: 431 textColorLink = appearance.getColorStateList(attr); 432 break; 433 434 case com.android.internal.R.styleable.TextAppearance_textSize: 435 textSize = appearance.getDimensionPixelSize(attr, textSize); 436 break; 437 438 case com.android.internal.R.styleable.TextAppearance_typeface: 439 typefaceIndex = appearance.getInt(attr, -1); 440 break; 441 442 case com.android.internal.R.styleable.TextAppearance_textStyle: 443 styleIndex = appearance.getInt(attr, -1); 444 break; 445 } 446 } 447 448 appearance.recycle(); 449 } 450 451 boolean editable = getDefaultEditable(); 452 CharSequence inputMethod = null; 453 int numeric = 0; 454 CharSequence digits = null; 455 boolean phone = false; 456 boolean autotext = false; 457 int autocap = -1; 458 int buffertype = 0; 459 boolean selectallonfocus = false; 460 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 461 drawableBottom = null; 462 int drawablePadding = 0; 463 int ellipsize = -1; 464 boolean singleLine = false; 465 int maxlength = -1; 466 CharSequence text = ""; 467 CharSequence hint = null; 468 int shadowcolor = 0; 469 float dx = 0, dy = 0, r = 0; 470 boolean password = false; 471 int inputType = EditorInfo.TYPE_NULL; 472 473 int n = a.getIndexCount(); 474 for (int i = 0; i < n; i++) { 475 int attr = a.getIndex(i); 476 477 switch (attr) { 478 case com.android.internal.R.styleable.TextView_editable: 479 editable = a.getBoolean(attr, editable); 480 break; 481 482 case com.android.internal.R.styleable.TextView_inputMethod: 483 inputMethod = a.getText(attr); 484 break; 485 486 case com.android.internal.R.styleable.TextView_numeric: 487 numeric = a.getInt(attr, numeric); 488 break; 489 490 case com.android.internal.R.styleable.TextView_digits: 491 digits = a.getText(attr); 492 break; 493 494 case com.android.internal.R.styleable.TextView_phoneNumber: 495 phone = a.getBoolean(attr, phone); 496 break; 497 498 case com.android.internal.R.styleable.TextView_autoText: 499 autotext = a.getBoolean(attr, autotext); 500 break; 501 502 case com.android.internal.R.styleable.TextView_capitalize: 503 autocap = a.getInt(attr, autocap); 504 break; 505 506 case com.android.internal.R.styleable.TextView_bufferType: 507 buffertype = a.getInt(attr, buffertype); 508 break; 509 510 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 511 selectallonfocus = a.getBoolean(attr, selectallonfocus); 512 break; 513 514 case com.android.internal.R.styleable.TextView_autoLink: 515 mAutoLinkMask = a.getInt(attr, 0); 516 break; 517 518 case com.android.internal.R.styleable.TextView_linksClickable: 519 mLinksClickable = a.getBoolean(attr, true); 520 break; 521 522 case com.android.internal.R.styleable.TextView_drawableLeft: 523 drawableLeft = a.getDrawable(attr); 524 break; 525 526 case com.android.internal.R.styleable.TextView_drawableTop: 527 drawableTop = a.getDrawable(attr); 528 break; 529 530 case com.android.internal.R.styleable.TextView_drawableRight: 531 drawableRight = a.getDrawable(attr); 532 break; 533 534 case com.android.internal.R.styleable.TextView_drawableBottom: 535 drawableBottom = a.getDrawable(attr); 536 break; 537 538 case com.android.internal.R.styleable.TextView_drawablePadding: 539 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 540 break; 541 542 case com.android.internal.R.styleable.TextView_maxLines: 543 setMaxLines(a.getInt(attr, -1)); 544 break; 545 546 case com.android.internal.R.styleable.TextView_maxHeight: 547 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 548 break; 549 550 case com.android.internal.R.styleable.TextView_lines: 551 setLines(a.getInt(attr, -1)); 552 break; 553 554 case com.android.internal.R.styleable.TextView_height: 555 setHeight(a.getDimensionPixelSize(attr, -1)); 556 break; 557 558 case com.android.internal.R.styleable.TextView_minLines: 559 setMinLines(a.getInt(attr, -1)); 560 break; 561 562 case com.android.internal.R.styleable.TextView_minHeight: 563 setMinHeight(a.getDimensionPixelSize(attr, -1)); 564 break; 565 566 case com.android.internal.R.styleable.TextView_maxEms: 567 setMaxEms(a.getInt(attr, -1)); 568 break; 569 570 case com.android.internal.R.styleable.TextView_maxWidth: 571 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 572 break; 573 574 case com.android.internal.R.styleable.TextView_ems: 575 setEms(a.getInt(attr, -1)); 576 break; 577 578 case com.android.internal.R.styleable.TextView_width: 579 setWidth(a.getDimensionPixelSize(attr, -1)); 580 break; 581 582 case com.android.internal.R.styleable.TextView_minEms: 583 setMinEms(a.getInt(attr, -1)); 584 break; 585 586 case com.android.internal.R.styleable.TextView_minWidth: 587 setMinWidth(a.getDimensionPixelSize(attr, -1)); 588 break; 589 590 case com.android.internal.R.styleable.TextView_gravity: 591 setGravity(a.getInt(attr, -1)); 592 break; 593 594 case com.android.internal.R.styleable.TextView_hint: 595 hint = a.getText(attr); 596 break; 597 598 case com.android.internal.R.styleable.TextView_text: 599 text = a.getText(attr); 600 break; 601 602 case com.android.internal.R.styleable.TextView_scrollHorizontally: 603 if (a.getBoolean(attr, false)) { 604 setHorizontallyScrolling(true); 605 } 606 break; 607 608 case com.android.internal.R.styleable.TextView_singleLine: 609 singleLine = a.getBoolean(attr, singleLine); 610 break; 611 612 case com.android.internal.R.styleable.TextView_ellipsize: 613 ellipsize = a.getInt(attr, ellipsize); 614 break; 615 616 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 617 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 618 break; 619 620 case com.android.internal.R.styleable.TextView_includeFontPadding: 621 if (!a.getBoolean(attr, true)) { 622 setIncludeFontPadding(false); 623 } 624 break; 625 626 case com.android.internal.R.styleable.TextView_cursorVisible: 627 if (!a.getBoolean(attr, true)) { 628 setCursorVisible(false); 629 } 630 break; 631 632 case com.android.internal.R.styleable.TextView_maxLength: 633 maxlength = a.getInt(attr, -1); 634 break; 635 636 case com.android.internal.R.styleable.TextView_textScaleX: 637 setTextScaleX(a.getFloat(attr, 1.0f)); 638 break; 639 640 case com.android.internal.R.styleable.TextView_freezesText: 641 mFreezesText = a.getBoolean(attr, false); 642 break; 643 644 case com.android.internal.R.styleable.TextView_shadowColor: 645 shadowcolor = a.getInt(attr, 0); 646 break; 647 648 case com.android.internal.R.styleable.TextView_shadowDx: 649 dx = a.getFloat(attr, 0); 650 break; 651 652 case com.android.internal.R.styleable.TextView_shadowDy: 653 dy = a.getFloat(attr, 0); 654 break; 655 656 case com.android.internal.R.styleable.TextView_shadowRadius: 657 r = a.getFloat(attr, 0); 658 break; 659 660 case com.android.internal.R.styleable.TextView_enabled: 661 setEnabled(a.getBoolean(attr, isEnabled())); 662 break; 663 664 case com.android.internal.R.styleable.TextView_textColorHighlight: 665 textColorHighlight = a.getColor(attr, textColorHighlight); 666 break; 667 668 case com.android.internal.R.styleable.TextView_textColor: 669 textColor = a.getColorStateList(attr); 670 break; 671 672 case com.android.internal.R.styleable.TextView_textColorHint: 673 textColorHint = a.getColorStateList(attr); 674 break; 675 676 case com.android.internal.R.styleable.TextView_textColorLink: 677 textColorLink = a.getColorStateList(attr); 678 break; 679 680 case com.android.internal.R.styleable.TextView_textSize: 681 textSize = a.getDimensionPixelSize(attr, textSize); 682 break; 683 684 case com.android.internal.R.styleable.TextView_typeface: 685 typefaceIndex = a.getInt(attr, typefaceIndex); 686 break; 687 688 case com.android.internal.R.styleable.TextView_textStyle: 689 styleIndex = a.getInt(attr, styleIndex); 690 break; 691 692 case com.android.internal.R.styleable.TextView_password: 693 password = a.getBoolean(attr, password); 694 break; 695 696 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 697 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 698 break; 699 700 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 701 mSpacingMult = a.getFloat(attr, mSpacingMult); 702 break; 703 704 case com.android.internal.R.styleable.TextView_inputType: 705 inputType = a.getInt(attr, mInputType); 706 break; 707 708 case com.android.internal.R.styleable.TextView_imeOptions: 709 if (mInputContentType == null) { 710 mInputContentType = new InputContentType(); 711 } 712 mInputContentType.imeOptions = a.getInt(attr, 713 mInputContentType.imeOptions); 714 break; 715 716 case com.android.internal.R.styleable.TextView_imeActionLabel: 717 if (mInputContentType == null) { 718 mInputContentType = new InputContentType(); 719 } 720 mInputContentType.imeActionLabel = a.getText(attr); 721 break; 722 723 case com.android.internal.R.styleable.TextView_imeActionId: 724 if (mInputContentType == null) { 725 mInputContentType = new InputContentType(); 726 } 727 mInputContentType.imeActionId = a.getInt(attr, 728 mInputContentType.imeActionId); 729 break; 730 731 case com.android.internal.R.styleable.TextView_privateImeOptions: 732 setPrivateImeOptions(a.getString(attr)); 733 break; 734 735 case com.android.internal.R.styleable.TextView_editorExtras: 736 try { 737 setInputExtras(a.getResourceId(attr, 0)); 738 } catch (XmlPullParserException e) { 739 Log.w(LOG_TAG, "Failure reading input extras", e); 740 } catch (IOException e) { 741 Log.w(LOG_TAG, "Failure reading input extras", e); 742 } 743 break; 744 745 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 746 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 747 break; 748 749 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 750 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 751 break; 752 753 case com.android.internal.R.styleable.TextView_textSelectHandle: 754 mTextSelectHandleRes = a.getResourceId(attr, 0); 755 break; 756 757 case com.android.internal.R.styleable.TextView_textEditPasteWindowLayout: 758 mTextEditPasteWindowLayout = a.getResourceId(attr, 0); 759 break; 760 761 case com.android.internal.R.styleable.TextView_textEditNoPasteWindowLayout: 762 mTextEditNoPasteWindowLayout = a.getResourceId(attr, 0); 763 break; 764 765 case com.android.internal.R.styleable.TextView_textIsSelectable: 766 mTextIsSelectable = a.getBoolean(attr, false); 767 break; 768 } 769 } 770 a.recycle(); 771 772 BufferType bufferType = BufferType.EDITABLE; 773 774 final int variation = 775 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 776 final boolean passwordInputType = variation 777 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 778 final boolean webPasswordInputType = variation 779 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 780 final boolean numberPasswordInputType = variation 781 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 782 783 if (inputMethod != null) { 784 Class<?> c; 785 786 try { 787 c = Class.forName(inputMethod.toString()); 788 } catch (ClassNotFoundException ex) { 789 throw new RuntimeException(ex); 790 } 791 792 try { 793 mInput = (KeyListener) c.newInstance(); 794 } catch (InstantiationException ex) { 795 throw new RuntimeException(ex); 796 } catch (IllegalAccessException ex) { 797 throw new RuntimeException(ex); 798 } 799 try { 800 mInputType = inputType != EditorInfo.TYPE_NULL 801 ? inputType 802 : mInput.getInputType(); 803 } catch (IncompatibleClassChangeError e) { 804 mInputType = EditorInfo.TYPE_CLASS_TEXT; 805 } 806 } else if (digits != null) { 807 mInput = DigitsKeyListener.getInstance(digits.toString()); 808 // If no input type was specified, we will default to generic 809 // text, since we can't tell the IME about the set of digits 810 // that was selected. 811 mInputType = inputType != EditorInfo.TYPE_NULL 812 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 813 } else if (inputType != EditorInfo.TYPE_NULL) { 814 setInputType(inputType, true); 815 // If set, the input type overrides what was set using the deprecated singleLine flag. 816 singleLine = !isMultilineInputType(inputType); 817 } else if (phone) { 818 mInput = DialerKeyListener.getInstance(); 819 mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 820 } else if (numeric != 0) { 821 mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 822 (numeric & DECIMAL) != 0); 823 inputType = EditorInfo.TYPE_CLASS_NUMBER; 824 if ((numeric & SIGNED) != 0) { 825 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 826 } 827 if ((numeric & DECIMAL) != 0) { 828 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 829 } 830 mInputType = inputType; 831 } else if (autotext || autocap != -1) { 832 TextKeyListener.Capitalize cap; 833 834 inputType = EditorInfo.TYPE_CLASS_TEXT; 835 836 switch (autocap) { 837 case 1: 838 cap = TextKeyListener.Capitalize.SENTENCES; 839 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 840 break; 841 842 case 2: 843 cap = TextKeyListener.Capitalize.WORDS; 844 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 845 break; 846 847 case 3: 848 cap = TextKeyListener.Capitalize.CHARACTERS; 849 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 850 break; 851 852 default: 853 cap = TextKeyListener.Capitalize.NONE; 854 break; 855 } 856 857 mInput = TextKeyListener.getInstance(autotext, cap); 858 mInputType = inputType; 859 } else if (mTextIsSelectable) { 860 // Prevent text changes from keyboard. 861 mInputType = EditorInfo.TYPE_NULL; 862 mInput = null; 863 bufferType = BufferType.SPANNABLE; 864 // Required to request focus while in touch mode. 865 setFocusableInTouchMode(true); 866 // So that selection can be changed using arrow keys and touch is handled. 867 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 868 } else if (editable) { 869 mInput = TextKeyListener.getInstance(); 870 mInputType = EditorInfo.TYPE_CLASS_TEXT; 871 } else { 872 mInput = null; 873 874 switch (buffertype) { 875 case 0: 876 bufferType = BufferType.NORMAL; 877 break; 878 case 1: 879 bufferType = BufferType.SPANNABLE; 880 break; 881 case 2: 882 bufferType = BufferType.EDITABLE; 883 break; 884 } 885 } 886 887 // mInputType has been set from inputType, possibly modified by mInputMethod. 888 // Specialize mInputType to [web]password if we have a text class and the original input 889 // type was a password. 890 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 891 if (password || passwordInputType) { 892 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 893 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 894 } 895 if (webPasswordInputType) { 896 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 897 | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 898 } 899 } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { 900 if (numberPasswordInputType) { 901 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 902 | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 903 } 904 } 905 906 if (selectallonfocus) { 907 mSelectAllOnFocus = true; 908 909 if (bufferType == BufferType.NORMAL) 910 bufferType = BufferType.SPANNABLE; 911 } 912 913 setCompoundDrawablesWithIntrinsicBounds( 914 drawableLeft, drawableTop, drawableRight, drawableBottom); 915 setCompoundDrawablePadding(drawablePadding); 916 917 // Same as setSingleLine(), but make sure the transformation method and the maximum number 918 // of lines of height are unchanged for multi-line TextViews. 919 setInputTypeSingleLine(singleLine); 920 applySingleLine(singleLine, singleLine, singleLine); 921 922 if (singleLine && mInput == null && ellipsize < 0) { 923 ellipsize = 3; // END 924 } 925 926 switch (ellipsize) { 927 case 1: 928 setEllipsize(TextUtils.TruncateAt.START); 929 break; 930 case 2: 931 setEllipsize(TextUtils.TruncateAt.MIDDLE); 932 break; 933 case 3: 934 setEllipsize(TextUtils.TruncateAt.END); 935 break; 936 case 4: 937 setHorizontalFadingEdgeEnabled(true); 938 setEllipsize(TextUtils.TruncateAt.MARQUEE); 939 break; 940 } 941 942 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 943 setHintTextColor(textColorHint); 944 setLinkTextColor(textColorLink); 945 if (textColorHighlight != 0) { 946 setHighlightColor(textColorHighlight); 947 } 948 setRawTextSize(textSize); 949 950 if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) { 951 setTransformationMethod(PasswordTransformationMethod.getInstance()); 952 typefaceIndex = MONOSPACE; 953 } else if ((mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 954 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 955 typefaceIndex = MONOSPACE; 956 } 957 958 setTypefaceByIndex(typefaceIndex, styleIndex); 959 960 if (shadowcolor != 0) { 961 setShadowLayer(r, dx, dy, shadowcolor); 962 } 963 964 if (maxlength >= 0) { 965 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 966 } else { 967 setFilters(NO_FILTERS); 968 } 969 970 setText(text, bufferType); 971 if (hint != null) setHint(hint); 972 973 /* 974 * Views are not normally focusable unless specified to be. 975 * However, TextViews that have input or movement methods *are* 976 * focusable by default. 977 */ 978 a = context.obtainStyledAttributes(attrs, 979 com.android.internal.R.styleable.View, 980 defStyle, 0); 981 982 boolean focusable = mMovement != null || mInput != null; 983 boolean clickable = focusable; 984 boolean longClickable = focusable; 985 986 n = a.getIndexCount(); 987 for (int i = 0; i < n; i++) { 988 int attr = a.getIndex(i); 989 990 switch (attr) { 991 case com.android.internal.R.styleable.View_focusable: 992 focusable = a.getBoolean(attr, focusable); 993 break; 994 995 case com.android.internal.R.styleable.View_clickable: 996 clickable = a.getBoolean(attr, clickable); 997 break; 998 999 case com.android.internal.R.styleable.View_longClickable: 1000 longClickable = a.getBoolean(attr, longClickable); 1001 break; 1002 } 1003 } 1004 a.recycle(); 1005 1006 setFocusable(focusable); 1007 setClickable(clickable); 1008 setLongClickable(longClickable); 1009 1010 prepareCursorControllers(); 1011 1012 final ViewConfiguration viewConfiguration = ViewConfiguration.get(context); 1013 final int touchSlop = viewConfiguration.getScaledTouchSlop(); 1014 mSquaredTouchSlopDistance = touchSlop * touchSlop; 1015 } 1016 1017 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 1018 Typeface tf = null; 1019 switch (typefaceIndex) { 1020 case SANS: 1021 tf = Typeface.SANS_SERIF; 1022 break; 1023 1024 case SERIF: 1025 tf = Typeface.SERIF; 1026 break; 1027 1028 case MONOSPACE: 1029 tf = Typeface.MONOSPACE; 1030 break; 1031 } 1032 1033 setTypeface(tf, styleIndex); 1034 } 1035 1036 @Override 1037 public void setEnabled(boolean enabled) { 1038 if (enabled == isEnabled()) { 1039 return; 1040 } 1041 1042 if (!enabled) { 1043 // Hide the soft input if the currently active TextView is disabled 1044 InputMethodManager imm = InputMethodManager.peekInstance(); 1045 if (imm != null && imm.isActive(this)) { 1046 imm.hideSoftInputFromWindow(getWindowToken(), 0); 1047 } 1048 } 1049 super.setEnabled(enabled); 1050 } 1051 1052 /** 1053 * Sets the typeface and style in which the text should be displayed, 1054 * and turns on the fake bold and italic bits in the Paint if the 1055 * Typeface that you provided does not have all the bits in the 1056 * style that you specified. 1057 * 1058 * @attr ref android.R.styleable#TextView_typeface 1059 * @attr ref android.R.styleable#TextView_textStyle 1060 */ 1061 public void setTypeface(Typeface tf, int style) { 1062 if (style > 0) { 1063 if (tf == null) { 1064 tf = Typeface.defaultFromStyle(style); 1065 } else { 1066 tf = Typeface.create(tf, style); 1067 } 1068 1069 setTypeface(tf); 1070 // now compute what (if any) algorithmic styling is needed 1071 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1072 int need = style & ~typefaceStyle; 1073 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1074 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1075 } else { 1076 mTextPaint.setFakeBoldText(false); 1077 mTextPaint.setTextSkewX(0); 1078 setTypeface(tf); 1079 } 1080 } 1081 1082 /** 1083 * Subclasses override this to specify that they have a KeyListener 1084 * by default even if not specifically called for in the XML options. 1085 */ 1086 protected boolean getDefaultEditable() { 1087 return false; 1088 } 1089 1090 /** 1091 * Subclasses override this to specify a default movement method. 1092 */ 1093 protected MovementMethod getDefaultMovementMethod() { 1094 return null; 1095 } 1096 1097 /** 1098 * Return the text the TextView is displaying. If setText() was called with 1099 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1100 * the return value from this method to Spannable or Editable, respectively. 1101 * 1102 * Note: The content of the return value should not be modified. If you want 1103 * a modifiable one, you should make your own copy first. 1104 */ 1105 @ViewDebug.CapturedViewProperty 1106 public CharSequence getText() { 1107 return mText; 1108 } 1109 1110 /** 1111 * Returns the length, in characters, of the text managed by this TextView 1112 */ 1113 public int length() { 1114 return mText.length(); 1115 } 1116 1117 /** 1118 * Return the text the TextView is displaying as an Editable object. If 1119 * the text is not editable, null is returned. 1120 * 1121 * @see #getText 1122 */ 1123 public Editable getEditableText() { 1124 return (mText instanceof Editable) ? (Editable)mText : null; 1125 } 1126 1127 /** 1128 * @return the height of one standard line in pixels. Note that markup 1129 * within the text can cause individual lines to be taller or shorter 1130 * than this height, and the layout may contain additional first- 1131 * or last-line padding. 1132 */ 1133 public int getLineHeight() { 1134 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 1135 } 1136 1137 /** 1138 * @return the Layout that is currently being used to display the text. 1139 * This can be null if the text or width has recently changes. 1140 */ 1141 public final Layout getLayout() { 1142 return mLayout; 1143 } 1144 1145 /** 1146 * @return the current key listener for this TextView. 1147 * This will frequently be null for non-EditText TextViews. 1148 */ 1149 public final KeyListener getKeyListener() { 1150 return mInput; 1151 } 1152 1153 /** 1154 * Sets the key listener to be used with this TextView. This can be null 1155 * to disallow user input. Note that this method has significant and 1156 * subtle interactions with soft keyboards and other input method: 1157 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1158 * for important details. Calling this method will replace the current 1159 * content type of the text view with the content type returned by the 1160 * key listener. 1161 * <p> 1162 * Be warned that if you want a TextView with a key listener or movement 1163 * method not to be focusable, or if you want a TextView without a 1164 * key listener or movement method to be focusable, you must call 1165 * {@link #setFocusable} again after calling this to get the focusability 1166 * back the way you want it. 1167 * 1168 * @attr ref android.R.styleable#TextView_numeric 1169 * @attr ref android.R.styleable#TextView_digits 1170 * @attr ref android.R.styleable#TextView_phoneNumber 1171 * @attr ref android.R.styleable#TextView_inputMethod 1172 * @attr ref android.R.styleable#TextView_capitalize 1173 * @attr ref android.R.styleable#TextView_autoText 1174 */ 1175 public void setKeyListener(KeyListener input) { 1176 setKeyListenerOnly(input); 1177 fixFocusableAndClickableSettings(); 1178 1179 if (input != null) { 1180 try { 1181 mInputType = mInput.getInputType(); 1182 } catch (IncompatibleClassChangeError e) { 1183 mInputType = EditorInfo.TYPE_CLASS_TEXT; 1184 } 1185 // Change inputType, without affecting transformation. 1186 // No need to applySingleLine since mSingleLine is unchanged. 1187 setInputTypeSingleLine(mSingleLine); 1188 } else { 1189 mInputType = EditorInfo.TYPE_NULL; 1190 } 1191 1192 InputMethodManager imm = InputMethodManager.peekInstance(); 1193 if (imm != null) imm.restartInput(this); 1194 } 1195 1196 private void setKeyListenerOnly(KeyListener input) { 1197 mInput = input; 1198 if (mInput != null && !(mText instanceof Editable)) 1199 setText(mText); 1200 1201 setFilters((Editable) mText, mFilters); 1202 } 1203 1204 /** 1205 * @return the movement method being used for this TextView. 1206 * This will frequently be null for non-EditText TextViews. 1207 */ 1208 public final MovementMethod getMovementMethod() { 1209 return mMovement; 1210 } 1211 1212 /** 1213 * Sets the movement method (arrow key handler) to be used for 1214 * this TextView. This can be null to disallow using the arrow keys 1215 * to move the cursor or scroll the view. 1216 * <p> 1217 * Be warned that if you want a TextView with a key listener or movement 1218 * method not to be focusable, or if you want a TextView without a 1219 * key listener or movement method to be focusable, you must call 1220 * {@link #setFocusable} again after calling this to get the focusability 1221 * back the way you want it. 1222 */ 1223 public final void setMovementMethod(MovementMethod movement) { 1224 mMovement = movement; 1225 1226 if (mMovement != null && !(mText instanceof Spannable)) 1227 setText(mText); 1228 1229 fixFocusableAndClickableSettings(); 1230 1231 // SelectionModifierCursorController depends on textCanBeSelected, which depends on mMovement 1232 prepareCursorControllers(); 1233 } 1234 1235 private void fixFocusableAndClickableSettings() { 1236 if ((mMovement != null) || mInput != null) { 1237 setFocusable(true); 1238 setClickable(true); 1239 setLongClickable(true); 1240 } else { 1241 setFocusable(false); 1242 setClickable(false); 1243 setLongClickable(false); 1244 } 1245 } 1246 1247 /** 1248 * @return the current transformation method for this TextView. 1249 * This will frequently be null except for single-line and password 1250 * fields. 1251 */ 1252 public final TransformationMethod getTransformationMethod() { 1253 return mTransformation; 1254 } 1255 1256 /** 1257 * Sets the transformation that is applied to the text that this 1258 * TextView is displaying. 1259 * 1260 * @attr ref android.R.styleable#TextView_password 1261 * @attr ref android.R.styleable#TextView_singleLine 1262 */ 1263 public final void setTransformationMethod(TransformationMethod method) { 1264 if (method == mTransformation) { 1265 // Avoid the setText() below if the transformation is 1266 // the same. 1267 return; 1268 } 1269 if (mTransformation != null) { 1270 if (mText instanceof Spannable) { 1271 ((Spannable) mText).removeSpan(mTransformation); 1272 } 1273 } 1274 1275 mTransformation = method; 1276 1277 setText(mText); 1278 } 1279 1280 /** 1281 * Returns the top padding of the view, plus space for the top 1282 * Drawable if any. 1283 */ 1284 public int getCompoundPaddingTop() { 1285 final Drawables dr = mDrawables; 1286 if (dr == null || dr.mDrawableTop == null) { 1287 return mPaddingTop; 1288 } else { 1289 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1290 } 1291 } 1292 1293 /** 1294 * Returns the bottom padding of the view, plus space for the bottom 1295 * Drawable if any. 1296 */ 1297 public int getCompoundPaddingBottom() { 1298 final Drawables dr = mDrawables; 1299 if (dr == null || dr.mDrawableBottom == null) { 1300 return mPaddingBottom; 1301 } else { 1302 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1303 } 1304 } 1305 1306 /** 1307 * Returns the left padding of the view, plus space for the left 1308 * Drawable if any. 1309 */ 1310 public int getCompoundPaddingLeft() { 1311 final Drawables dr = mDrawables; 1312 if (dr == null || dr.mDrawableLeft == null) { 1313 return mPaddingLeft; 1314 } else { 1315 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1316 } 1317 } 1318 1319 /** 1320 * Returns the right padding of the view, plus space for the right 1321 * Drawable if any. 1322 */ 1323 public int getCompoundPaddingRight() { 1324 final Drawables dr = mDrawables; 1325 if (dr == null || dr.mDrawableRight == null) { 1326 return mPaddingRight; 1327 } else { 1328 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1329 } 1330 } 1331 1332 /** 1333 * Returns the extended top padding of the view, including both the 1334 * top Drawable if any and any extra space to keep more than maxLines 1335 * of text from showing. It is only valid to call this after measuring. 1336 */ 1337 public int getExtendedPaddingTop() { 1338 if (mMaxMode != LINES) { 1339 return getCompoundPaddingTop(); 1340 } 1341 1342 if (mLayout.getLineCount() <= mMaximum) { 1343 return getCompoundPaddingTop(); 1344 } 1345 1346 int top = getCompoundPaddingTop(); 1347 int bottom = getCompoundPaddingBottom(); 1348 int viewht = getHeight() - top - bottom; 1349 int layoutht = mLayout.getLineTop(mMaximum); 1350 1351 if (layoutht >= viewht) { 1352 return top; 1353 } 1354 1355 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1356 if (gravity == Gravity.TOP) { 1357 return top; 1358 } else if (gravity == Gravity.BOTTOM) { 1359 return top + viewht - layoutht; 1360 } else { // (gravity == Gravity.CENTER_VERTICAL) 1361 return top + (viewht - layoutht) / 2; 1362 } 1363 } 1364 1365 /** 1366 * Returns the extended bottom padding of the view, including both the 1367 * bottom Drawable if any and any extra space to keep more than maxLines 1368 * of text from showing. It is only valid to call this after measuring. 1369 */ 1370 public int getExtendedPaddingBottom() { 1371 if (mMaxMode != LINES) { 1372 return getCompoundPaddingBottom(); 1373 } 1374 1375 if (mLayout.getLineCount() <= mMaximum) { 1376 return getCompoundPaddingBottom(); 1377 } 1378 1379 int top = getCompoundPaddingTop(); 1380 int bottom = getCompoundPaddingBottom(); 1381 int viewht = getHeight() - top - bottom; 1382 int layoutht = mLayout.getLineTop(mMaximum); 1383 1384 if (layoutht >= viewht) { 1385 return bottom; 1386 } 1387 1388 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1389 if (gravity == Gravity.TOP) { 1390 return bottom + viewht - layoutht; 1391 } else if (gravity == Gravity.BOTTOM) { 1392 return bottom; 1393 } else { // (gravity == Gravity.CENTER_VERTICAL) 1394 return bottom + (viewht - layoutht) / 2; 1395 } 1396 } 1397 1398 /** 1399 * Returns the total left padding of the view, including the left 1400 * Drawable if any. 1401 */ 1402 public int getTotalPaddingLeft() { 1403 return getCompoundPaddingLeft(); 1404 } 1405 1406 /** 1407 * Returns the total right padding of the view, including the right 1408 * Drawable if any. 1409 */ 1410 public int getTotalPaddingRight() { 1411 return getCompoundPaddingRight(); 1412 } 1413 1414 /** 1415 * Returns the total top padding of the view, including the top 1416 * Drawable if any, the extra space to keep more than maxLines 1417 * from showing, and the vertical offset for gravity, if any. 1418 */ 1419 public int getTotalPaddingTop() { 1420 return getExtendedPaddingTop() + getVerticalOffset(true); 1421 } 1422 1423 /** 1424 * Returns the total bottom padding of the view, including the bottom 1425 * Drawable if any, the extra space to keep more than maxLines 1426 * from showing, and the vertical offset for gravity, if any. 1427 */ 1428 public int getTotalPaddingBottom() { 1429 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1430 } 1431 1432 /** 1433 * Sets the Drawables (if any) to appear to the left of, above, 1434 * to the right of, and below the text. Use null if you do not 1435 * want a Drawable there. The Drawables must already have had 1436 * {@link Drawable#setBounds} called. 1437 * 1438 * @attr ref android.R.styleable#TextView_drawableLeft 1439 * @attr ref android.R.styleable#TextView_drawableTop 1440 * @attr ref android.R.styleable#TextView_drawableRight 1441 * @attr ref android.R.styleable#TextView_drawableBottom 1442 */ 1443 public void setCompoundDrawables(Drawable left, Drawable top, 1444 Drawable right, Drawable bottom) { 1445 Drawables dr = mDrawables; 1446 1447 final boolean drawables = left != null || top != null 1448 || right != null || bottom != null; 1449 1450 if (!drawables) { 1451 // Clearing drawables... can we free the data structure? 1452 if (dr != null) { 1453 if (dr.mDrawablePadding == 0) { 1454 mDrawables = null; 1455 } else { 1456 // We need to retain the last set padding, so just clear 1457 // out all of the fields in the existing structure. 1458 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1459 dr.mDrawableLeft = null; 1460 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1461 dr.mDrawableTop = null; 1462 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1463 dr.mDrawableRight = null; 1464 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1465 dr.mDrawableBottom = null; 1466 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1467 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1468 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1469 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1470 } 1471 } 1472 } else { 1473 if (dr == null) { 1474 mDrawables = dr = new Drawables(); 1475 } 1476 1477 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1478 dr.mDrawableLeft.setCallback(null); 1479 } 1480 dr.mDrawableLeft = left; 1481 1482 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1483 dr.mDrawableTop.setCallback(null); 1484 } 1485 dr.mDrawableTop = top; 1486 1487 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1488 dr.mDrawableRight.setCallback(null); 1489 } 1490 dr.mDrawableRight = right; 1491 1492 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1493 dr.mDrawableBottom.setCallback(null); 1494 } 1495 dr.mDrawableBottom = bottom; 1496 1497 final Rect compoundRect = dr.mCompoundRect; 1498 int[] state; 1499 1500 state = getDrawableState(); 1501 1502 if (left != null) { 1503 left.setState(state); 1504 left.copyBounds(compoundRect); 1505 left.setCallback(this); 1506 dr.mDrawableSizeLeft = compoundRect.width(); 1507 dr.mDrawableHeightLeft = compoundRect.height(); 1508 } else { 1509 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1510 } 1511 1512 if (right != null) { 1513 right.setState(state); 1514 right.copyBounds(compoundRect); 1515 right.setCallback(this); 1516 dr.mDrawableSizeRight = compoundRect.width(); 1517 dr.mDrawableHeightRight = compoundRect.height(); 1518 } else { 1519 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1520 } 1521 1522 if (top != null) { 1523 top.setState(state); 1524 top.copyBounds(compoundRect); 1525 top.setCallback(this); 1526 dr.mDrawableSizeTop = compoundRect.height(); 1527 dr.mDrawableWidthTop = compoundRect.width(); 1528 } else { 1529 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1530 } 1531 1532 if (bottom != null) { 1533 bottom.setState(state); 1534 bottom.copyBounds(compoundRect); 1535 bottom.setCallback(this); 1536 dr.mDrawableSizeBottom = compoundRect.height(); 1537 dr.mDrawableWidthBottom = compoundRect.width(); 1538 } else { 1539 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1540 } 1541 } 1542 1543 invalidate(); 1544 requestLayout(); 1545 } 1546 1547 /** 1548 * Sets the Drawables (if any) to appear to the left of, above, 1549 * to the right of, and below the text. Use 0 if you do not 1550 * want a Drawable there. The Drawables' bounds will be set to 1551 * their intrinsic bounds. 1552 * 1553 * @param left Resource identifier of the left Drawable. 1554 * @param top Resource identifier of the top Drawable. 1555 * @param right Resource identifier of the right Drawable. 1556 * @param bottom Resource identifier of the bottom Drawable. 1557 * 1558 * @attr ref android.R.styleable#TextView_drawableLeft 1559 * @attr ref android.R.styleable#TextView_drawableTop 1560 * @attr ref android.R.styleable#TextView_drawableRight 1561 * @attr ref android.R.styleable#TextView_drawableBottom 1562 */ 1563 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1564 final Resources resources = getContext().getResources(); 1565 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1566 top != 0 ? resources.getDrawable(top) : null, 1567 right != 0 ? resources.getDrawable(right) : null, 1568 bottom != 0 ? resources.getDrawable(bottom) : null); 1569 } 1570 1571 /** 1572 * Sets the Drawables (if any) to appear to the left of, above, 1573 * to the right of, and below the text. Use null if you do not 1574 * want a Drawable there. The Drawables' bounds will be set to 1575 * their intrinsic bounds. 1576 * 1577 * @attr ref android.R.styleable#TextView_drawableLeft 1578 * @attr ref android.R.styleable#TextView_drawableTop 1579 * @attr ref android.R.styleable#TextView_drawableRight 1580 * @attr ref android.R.styleable#TextView_drawableBottom 1581 */ 1582 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1583 Drawable right, Drawable bottom) { 1584 1585 if (left != null) { 1586 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1587 } 1588 if (right != null) { 1589 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1590 } 1591 if (top != null) { 1592 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1593 } 1594 if (bottom != null) { 1595 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1596 } 1597 setCompoundDrawables(left, top, right, bottom); 1598 } 1599 1600 /** 1601 * Returns drawables for the left, top, right, and bottom borders. 1602 */ 1603 public Drawable[] getCompoundDrawables() { 1604 final Drawables dr = mDrawables; 1605 if (dr != null) { 1606 return new Drawable[] { 1607 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 1608 }; 1609 } else { 1610 return new Drawable[] { null, null, null, null }; 1611 } 1612 } 1613 1614 /** 1615 * Sets the size of the padding between the compound drawables and 1616 * the text. 1617 * 1618 * @attr ref android.R.styleable#TextView_drawablePadding 1619 */ 1620 public void setCompoundDrawablePadding(int pad) { 1621 Drawables dr = mDrawables; 1622 if (pad == 0) { 1623 if (dr != null) { 1624 dr.mDrawablePadding = pad; 1625 } 1626 } else { 1627 if (dr == null) { 1628 mDrawables = dr = new Drawables(); 1629 } 1630 dr.mDrawablePadding = pad; 1631 } 1632 1633 invalidate(); 1634 requestLayout(); 1635 } 1636 1637 /** 1638 * Returns the padding between the compound drawables and the text. 1639 */ 1640 public int getCompoundDrawablePadding() { 1641 final Drawables dr = mDrawables; 1642 return dr != null ? dr.mDrawablePadding : 0; 1643 } 1644 1645 @Override 1646 public void setPadding(int left, int top, int right, int bottom) { 1647 if (left != mPaddingLeft || 1648 right != mPaddingRight || 1649 top != mPaddingTop || 1650 bottom != mPaddingBottom) { 1651 nullLayouts(); 1652 } 1653 1654 // the super call will requestLayout() 1655 super.setPadding(left, top, right, bottom); 1656 invalidate(); 1657 } 1658 1659 /** 1660 * Gets the autolink mask of the text. See {@link 1661 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1662 * possible values. 1663 * 1664 * @attr ref android.R.styleable#TextView_autoLink 1665 */ 1666 public final int getAutoLinkMask() { 1667 return mAutoLinkMask; 1668 } 1669 1670 /** 1671 * Sets the text color, size, style, hint color, and highlight color 1672 * from the specified TextAppearance resource. 1673 */ 1674 public void setTextAppearance(Context context, int resid) { 1675 TypedArray appearance = 1676 context.obtainStyledAttributes(resid, 1677 com.android.internal.R.styleable.TextAppearance); 1678 1679 int color; 1680 ColorStateList colors; 1681 int ts; 1682 1683 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 1684 if (color != 0) { 1685 setHighlightColor(color); 1686 } 1687 1688 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1689 TextAppearance_textColor); 1690 if (colors != null) { 1691 setTextColor(colors); 1692 } 1693 1694 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 1695 TextAppearance_textSize, 0); 1696 if (ts != 0) { 1697 setRawTextSize(ts); 1698 } 1699 1700 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1701 TextAppearance_textColorHint); 1702 if (colors != null) { 1703 setHintTextColor(colors); 1704 } 1705 1706 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1707 TextAppearance_textColorLink); 1708 if (colors != null) { 1709 setLinkTextColor(colors); 1710 } 1711 1712 int typefaceIndex, styleIndex; 1713 1714 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 1715 TextAppearance_typeface, -1); 1716 styleIndex = appearance.getInt(com.android.internal.R.styleable. 1717 TextAppearance_textStyle, -1); 1718 1719 setTypefaceByIndex(typefaceIndex, styleIndex); 1720 1721 appearance.recycle(); 1722 } 1723 1724 /** 1725 * @return the size (in pixels) of the default text size in this TextView. 1726 */ 1727 public float getTextSize() { 1728 return mTextPaint.getTextSize(); 1729 } 1730 1731 /** 1732 * Set the default text size to the given value, interpreted as "scaled 1733 * pixel" units. This size is adjusted based on the current density and 1734 * user font size preference. 1735 * 1736 * @param size The scaled pixel size. 1737 * 1738 * @attr ref android.R.styleable#TextView_textSize 1739 */ 1740 @android.view.RemotableViewMethod 1741 public void setTextSize(float size) { 1742 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 1743 } 1744 1745 /** 1746 * Set the default text size to a given unit and value. See {@link 1747 * TypedValue} for the possible dimension units. 1748 * 1749 * @param unit The desired dimension unit. 1750 * @param size The desired size in the given units. 1751 * 1752 * @attr ref android.R.styleable#TextView_textSize 1753 */ 1754 public void setTextSize(int unit, float size) { 1755 Context c = getContext(); 1756 Resources r; 1757 1758 if (c == null) 1759 r = Resources.getSystem(); 1760 else 1761 r = c.getResources(); 1762 1763 setRawTextSize(TypedValue.applyDimension( 1764 unit, size, r.getDisplayMetrics())); 1765 } 1766 1767 private void setRawTextSize(float size) { 1768 if (size != mTextPaint.getTextSize()) { 1769 mTextPaint.setTextSize(size); 1770 1771 if (mLayout != null) { 1772 nullLayouts(); 1773 requestLayout(); 1774 invalidate(); 1775 } 1776 } 1777 } 1778 1779 /** 1780 * @return the extent by which text is currently being stretched 1781 * horizontally. This will usually be 1. 1782 */ 1783 public float getTextScaleX() { 1784 return mTextPaint.getTextScaleX(); 1785 } 1786 1787 /** 1788 * Sets the extent by which text should be stretched horizontally. 1789 * 1790 * @attr ref android.R.styleable#TextView_textScaleX 1791 */ 1792 @android.view.RemotableViewMethod 1793 public void setTextScaleX(float size) { 1794 if (size != mTextPaint.getTextScaleX()) { 1795 mUserSetTextScaleX = true; 1796 mTextPaint.setTextScaleX(size); 1797 1798 if (mLayout != null) { 1799 nullLayouts(); 1800 requestLayout(); 1801 invalidate(); 1802 } 1803 } 1804 } 1805 1806 /** 1807 * Sets the typeface and style in which the text should be displayed. 1808 * Note that not all Typeface families actually have bold and italic 1809 * variants, so you may need to use 1810 * {@link #setTypeface(Typeface, int)} to get the appearance 1811 * that you actually want. 1812 * 1813 * @attr ref android.R.styleable#TextView_typeface 1814 * @attr ref android.R.styleable#TextView_textStyle 1815 */ 1816 public void setTypeface(Typeface tf) { 1817 if (mTextPaint.getTypeface() != tf) { 1818 mTextPaint.setTypeface(tf); 1819 1820 if (mLayout != null) { 1821 nullLayouts(); 1822 requestLayout(); 1823 invalidate(); 1824 } 1825 } 1826 } 1827 1828 /** 1829 * @return the current typeface and style in which the text is being 1830 * displayed. 1831 */ 1832 public Typeface getTypeface() { 1833 return mTextPaint.getTypeface(); 1834 } 1835 1836 /** 1837 * Sets the text color for all the states (normal, selected, 1838 * focused) to be this color. 1839 * 1840 * @attr ref android.R.styleable#TextView_textColor 1841 */ 1842 @android.view.RemotableViewMethod 1843 public void setTextColor(int color) { 1844 mTextColor = ColorStateList.valueOf(color); 1845 updateTextColors(); 1846 } 1847 1848 /** 1849 * Sets the text color. 1850 * 1851 * @attr ref android.R.styleable#TextView_textColor 1852 */ 1853 public void setTextColor(ColorStateList colors) { 1854 if (colors == null) { 1855 throw new NullPointerException(); 1856 } 1857 1858 mTextColor = colors; 1859 updateTextColors(); 1860 } 1861 1862 /** 1863 * Return the set of text colors. 1864 * 1865 * @return Returns the set of text colors. 1866 */ 1867 public final ColorStateList getTextColors() { 1868 return mTextColor; 1869 } 1870 1871 /** 1872 * <p>Return the current color selected for normal text.</p> 1873 * 1874 * @return Returns the current text color. 1875 */ 1876 public final int getCurrentTextColor() { 1877 return mCurTextColor; 1878 } 1879 1880 /** 1881 * Sets the color used to display the selection highlight. 1882 * 1883 * @attr ref android.R.styleable#TextView_textColorHighlight 1884 */ 1885 @android.view.RemotableViewMethod 1886 public void setHighlightColor(int color) { 1887 if (mHighlightColor != color) { 1888 mHighlightColor = color; 1889 invalidate(); 1890 } 1891 } 1892 1893 /** 1894 * Gives the text a shadow of the specified radius and color, the specified 1895 * distance from its normal position. 1896 * 1897 * @attr ref android.R.styleable#TextView_shadowColor 1898 * @attr ref android.R.styleable#TextView_shadowDx 1899 * @attr ref android.R.styleable#TextView_shadowDy 1900 * @attr ref android.R.styleable#TextView_shadowRadius 1901 */ 1902 public void setShadowLayer(float radius, float dx, float dy, int color) { 1903 mTextPaint.setShadowLayer(radius, dx, dy, color); 1904 1905 mShadowRadius = radius; 1906 mShadowDx = dx; 1907 mShadowDy = dy; 1908 1909 invalidate(); 1910 } 1911 1912 /** 1913 * @return the base paint used for the text. Please use this only to 1914 * consult the Paint's properties and not to change them. 1915 */ 1916 public TextPaint getPaint() { 1917 return mTextPaint; 1918 } 1919 1920 /** 1921 * Sets the autolink mask of the text. See {@link 1922 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1923 * possible values. 1924 * 1925 * @attr ref android.R.styleable#TextView_autoLink 1926 */ 1927 @android.view.RemotableViewMethod 1928 public final void setAutoLinkMask(int mask) { 1929 mAutoLinkMask = mask; 1930 } 1931 1932 /** 1933 * Sets whether the movement method will automatically be set to 1934 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1935 * set to nonzero and links are detected in {@link #setText}. 1936 * The default is true. 1937 * 1938 * @attr ref android.R.styleable#TextView_linksClickable 1939 */ 1940 @android.view.RemotableViewMethod 1941 public final void setLinksClickable(boolean whether) { 1942 mLinksClickable = whether; 1943 } 1944 1945 /** 1946 * Returns whether the movement method will automatically be set to 1947 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1948 * set to nonzero and links are detected in {@link #setText}. 1949 * The default is true. 1950 * 1951 * @attr ref android.R.styleable#TextView_linksClickable 1952 */ 1953 public final boolean getLinksClickable() { 1954 return mLinksClickable; 1955 } 1956 1957 /** 1958 * Returns the list of URLSpans attached to the text 1959 * (by {@link Linkify} or otherwise) if any. You can call 1960 * {@link URLSpan#getURL} on them to find where they link to 1961 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 1962 * to find the region of the text they are attached to. 1963 */ 1964 public URLSpan[] getUrls() { 1965 if (mText instanceof Spanned) { 1966 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 1967 } else { 1968 return new URLSpan[0]; 1969 } 1970 } 1971 1972 /** 1973 * Sets the color of the hint text. 1974 * 1975 * @attr ref android.R.styleable#TextView_textColorHint 1976 */ 1977 @android.view.RemotableViewMethod 1978 public final void setHintTextColor(int color) { 1979 mHintTextColor = ColorStateList.valueOf(color); 1980 updateTextColors(); 1981 } 1982 1983 /** 1984 * Sets the color of the hint text. 1985 * 1986 * @attr ref android.R.styleable#TextView_textColorHint 1987 */ 1988 public final void setHintTextColor(ColorStateList colors) { 1989 mHintTextColor = colors; 1990 updateTextColors(); 1991 } 1992 1993 /** 1994 * <p>Return the color used to paint the hint text.</p> 1995 * 1996 * @return Returns the list of hint text colors. 1997 */ 1998 public final ColorStateList getHintTextColors() { 1999 return mHintTextColor; 2000 } 2001 2002 /** 2003 * <p>Return the current color selected to paint the hint text.</p> 2004 * 2005 * @return Returns the current hint text color. 2006 */ 2007 public final int getCurrentHintTextColor() { 2008 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 2009 } 2010 2011 /** 2012 * Sets the color of links in the text. 2013 * 2014 * @attr ref android.R.styleable#TextView_textColorLink 2015 */ 2016 @android.view.RemotableViewMethod 2017 public final void setLinkTextColor(int color) { 2018 mLinkTextColor = ColorStateList.valueOf(color); 2019 updateTextColors(); 2020 } 2021 2022 /** 2023 * Sets the color of links in the text. 2024 * 2025 * @attr ref android.R.styleable#TextView_textColorLink 2026 */ 2027 public final void setLinkTextColor(ColorStateList colors) { 2028 mLinkTextColor = colors; 2029 updateTextColors(); 2030 } 2031 2032 /** 2033 * <p>Returns the color used to paint links in the text.</p> 2034 * 2035 * @return Returns the list of link text colors. 2036 */ 2037 public final ColorStateList getLinkTextColors() { 2038 return mLinkTextColor; 2039 } 2040 2041 /** 2042 * Sets the horizontal alignment of the text and the 2043 * vertical gravity that will be used when there is extra space 2044 * in the TextView beyond what is required for the text itself. 2045 * 2046 * @see android.view.Gravity 2047 * @attr ref android.R.styleable#TextView_gravity 2048 */ 2049 public void setGravity(int gravity) { 2050 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == 0) { 2051 gravity |= Gravity.LEFT; 2052 } 2053 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2054 gravity |= Gravity.TOP; 2055 } 2056 2057 boolean newLayout = false; 2058 2059 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) != 2060 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK)) { 2061 newLayout = true; 2062 } 2063 2064 if (gravity != mGravity) { 2065 invalidate(); 2066 } 2067 2068 mGravity = gravity; 2069 2070 if (mLayout != null && newLayout) { 2071 // XXX this is heavy-handed because no actual content changes. 2072 int want = mLayout.getWidth(); 2073 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2074 2075 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2076 mRight - mLeft - getCompoundPaddingLeft() - 2077 getCompoundPaddingRight(), true); 2078 } 2079 } 2080 2081 /** 2082 * Returns the horizontal and vertical alignment of this TextView. 2083 * 2084 * @see android.view.Gravity 2085 * @attr ref android.R.styleable#TextView_gravity 2086 */ 2087 public int getGravity() { 2088 return mGravity; 2089 } 2090 2091 /** 2092 * @return the flags on the Paint being used to display the text. 2093 * @see Paint#getFlags 2094 */ 2095 public int getPaintFlags() { 2096 return mTextPaint.getFlags(); 2097 } 2098 2099 /** 2100 * Sets flags on the Paint being used to display the text and 2101 * reflows the text if they are different from the old flags. 2102 * @see Paint#setFlags 2103 */ 2104 @android.view.RemotableViewMethod 2105 public void setPaintFlags(int flags) { 2106 if (mTextPaint.getFlags() != flags) { 2107 mTextPaint.setFlags(flags); 2108 2109 if (mLayout != null) { 2110 nullLayouts(); 2111 requestLayout(); 2112 invalidate(); 2113 } 2114 } 2115 } 2116 2117 /** 2118 * Sets whether the text should be allowed to be wider than the 2119 * View is. If false, it will be wrapped to the width of the View. 2120 * 2121 * @attr ref android.R.styleable#TextView_scrollHorizontally 2122 */ 2123 public void setHorizontallyScrolling(boolean whether) { 2124 mHorizontallyScrolling = whether; 2125 2126 if (mLayout != null) { 2127 nullLayouts(); 2128 requestLayout(); 2129 invalidate(); 2130 } 2131 } 2132 2133 /** 2134 * Makes the TextView at least this many lines tall. 2135 * 2136 * Setting this value overrides any other (minimum) height setting. A single line TextView will 2137 * set this value to 1. 2138 * 2139 * @attr ref android.R.styleable#TextView_minLines 2140 */ 2141 @android.view.RemotableViewMethod 2142 public void setMinLines(int minlines) { 2143 mMinimum = minlines; 2144 mMinMode = LINES; 2145 2146 requestLayout(); 2147 invalidate(); 2148 } 2149 2150 /** 2151 * Makes the TextView at least this many pixels tall. 2152 * 2153 * Setting this value overrides any other (minimum) number of lines setting. 2154 * 2155 * @attr ref android.R.styleable#TextView_minHeight 2156 */ 2157 @android.view.RemotableViewMethod 2158 public void setMinHeight(int minHeight) { 2159 mMinimum = minHeight; 2160 mMinMode = PIXELS; 2161 2162 requestLayout(); 2163 invalidate(); 2164 } 2165 2166 /** 2167 * Makes the TextView at most this many lines tall. 2168 * 2169 * Setting this value overrides any other (maximum) height setting. 2170 * 2171 * @attr ref android.R.styleable#TextView_maxLines 2172 */ 2173 @android.view.RemotableViewMethod 2174 public void setMaxLines(int maxlines) { 2175 mMaximum = maxlines; 2176 mMaxMode = LINES; 2177 2178 requestLayout(); 2179 invalidate(); 2180 } 2181 2182 /** 2183 * Makes the TextView at most this many pixels tall. This option is mutually exclusive with the 2184 * {@link #setMaxLines(int)} method. 2185 * 2186 * Setting this value overrides any other (maximum) number of lines setting. 2187 * 2188 * @attr ref android.R.styleable#TextView_maxHeight 2189 */ 2190 @android.view.RemotableViewMethod 2191 public void setMaxHeight(int maxHeight) { 2192 mMaximum = maxHeight; 2193 mMaxMode = PIXELS; 2194 2195 requestLayout(); 2196 invalidate(); 2197 } 2198 2199 /** 2200 * Makes the TextView exactly this many lines tall. 2201 * 2202 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2203 * height setting. A single line TextView will set this value to 1. 2204 * 2205 * @attr ref android.R.styleable#TextView_lines 2206 */ 2207 @android.view.RemotableViewMethod 2208 public void setLines(int lines) { 2209 mMaximum = mMinimum = lines; 2210 mMaxMode = mMinMode = LINES; 2211 2212 requestLayout(); 2213 invalidate(); 2214 } 2215 2216 /** 2217 * Makes the TextView exactly this many pixels tall. 2218 * You could do the same thing by specifying this number in the 2219 * LayoutParams. 2220 * 2221 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2222 * height setting. 2223 * 2224 * @attr ref android.R.styleable#TextView_height 2225 */ 2226 @android.view.RemotableViewMethod 2227 public void setHeight(int pixels) { 2228 mMaximum = mMinimum = pixels; 2229 mMaxMode = mMinMode = PIXELS; 2230 2231 requestLayout(); 2232 invalidate(); 2233 } 2234 2235 /** 2236 * Makes the TextView at least this many ems wide 2237 * 2238 * @attr ref android.R.styleable#TextView_minEms 2239 */ 2240 @android.view.RemotableViewMethod 2241 public void setMinEms(int minems) { 2242 mMinWidth = minems; 2243 mMinWidthMode = EMS; 2244 2245 requestLayout(); 2246 invalidate(); 2247 } 2248 2249 /** 2250 * Makes the TextView at least this many pixels wide 2251 * 2252 * @attr ref android.R.styleable#TextView_minWidth 2253 */ 2254 @android.view.RemotableViewMethod 2255 public void setMinWidth(int minpixels) { 2256 mMinWidth = minpixels; 2257 mMinWidthMode = PIXELS; 2258 2259 requestLayout(); 2260 invalidate(); 2261 } 2262 2263 /** 2264 * Makes the TextView at most this many ems wide 2265 * 2266 * @attr ref android.R.styleable#TextView_maxEms 2267 */ 2268 @android.view.RemotableViewMethod 2269 public void setMaxEms(int maxems) { 2270 mMaxWidth = maxems; 2271 mMaxWidthMode = EMS; 2272 2273 requestLayout(); 2274 invalidate(); 2275 } 2276 2277 /** 2278 * Makes the TextView at most this many pixels wide 2279 * 2280 * @attr ref android.R.styleable#TextView_maxWidth 2281 */ 2282 @android.view.RemotableViewMethod 2283 public void setMaxWidth(int maxpixels) { 2284 mMaxWidth = maxpixels; 2285 mMaxWidthMode = PIXELS; 2286 2287 requestLayout(); 2288 invalidate(); 2289 } 2290 2291 /** 2292 * Makes the TextView exactly this many ems wide 2293 * 2294 * @attr ref android.R.styleable#TextView_ems 2295 */ 2296 @android.view.RemotableViewMethod 2297 public void setEms(int ems) { 2298 mMaxWidth = mMinWidth = ems; 2299 mMaxWidthMode = mMinWidthMode = EMS; 2300 2301 requestLayout(); 2302 invalidate(); 2303 } 2304 2305 /** 2306 * Makes the TextView exactly this many pixels wide. 2307 * You could do the same thing by specifying this number in the 2308 * LayoutParams. 2309 * 2310 * @attr ref android.R.styleable#TextView_width 2311 */ 2312 @android.view.RemotableViewMethod 2313 public void setWidth(int pixels) { 2314 mMaxWidth = mMinWidth = pixels; 2315 mMaxWidthMode = mMinWidthMode = PIXELS; 2316 2317 requestLayout(); 2318 invalidate(); 2319 } 2320 2321 2322 /** 2323 * Sets line spacing for this TextView. Each line will have its height 2324 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2325 * 2326 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2327 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2328 */ 2329 public void setLineSpacing(float add, float mult) { 2330 mSpacingMult = mult; 2331 mSpacingAdd = add; 2332 2333 if (mLayout != null) { 2334 nullLayouts(); 2335 requestLayout(); 2336 invalidate(); 2337 } 2338 } 2339 2340 /** 2341 * Convenience method: Append the specified text to the TextView's 2342 * display buffer, upgrading it to BufferType.EDITABLE if it was 2343 * not already editable. 2344 */ 2345 public final void append(CharSequence text) { 2346 append(text, 0, text.length()); 2347 } 2348 2349 /** 2350 * Convenience method: Append the specified text slice to the TextView's 2351 * display buffer, upgrading it to BufferType.EDITABLE if it was 2352 * not already editable. 2353 */ 2354 public void append(CharSequence text, int start, int end) { 2355 if (!(mText instanceof Editable)) { 2356 setText(mText, BufferType.EDITABLE); 2357 } 2358 2359 ((Editable) mText).append(text, start, end); 2360 } 2361 2362 private void updateTextColors() { 2363 boolean inval = false; 2364 int color = mTextColor.getColorForState(getDrawableState(), 0); 2365 if (color != mCurTextColor) { 2366 mCurTextColor = color; 2367 inval = true; 2368 } 2369 if (mLinkTextColor != null) { 2370 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2371 if (color != mTextPaint.linkColor) { 2372 mTextPaint.linkColor = color; 2373 inval = true; 2374 } 2375 } 2376 if (mHintTextColor != null) { 2377 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2378 if (color != mCurHintTextColor && mText.length() == 0) { 2379 mCurHintTextColor = color; 2380 inval = true; 2381 } 2382 } 2383 if (inval) { 2384 invalidate(); 2385 } 2386 } 2387 2388 @Override 2389 protected void drawableStateChanged() { 2390 super.drawableStateChanged(); 2391 if (mTextColor != null && mTextColor.isStateful() 2392 || (mHintTextColor != null && mHintTextColor.isStateful()) 2393 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2394 updateTextColors(); 2395 } 2396 2397 final Drawables dr = mDrawables; 2398 if (dr != null) { 2399 int[] state = getDrawableState(); 2400 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2401 dr.mDrawableTop.setState(state); 2402 } 2403 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2404 dr.mDrawableBottom.setState(state); 2405 } 2406 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2407 dr.mDrawableLeft.setState(state); 2408 } 2409 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2410 dr.mDrawableRight.setState(state); 2411 } 2412 } 2413 } 2414 2415 /** 2416 * User interface state that is stored by TextView for implementing 2417 * {@link View#onSaveInstanceState}. 2418 */ 2419 public static class SavedState extends BaseSavedState { 2420 int selStart; 2421 int selEnd; 2422 CharSequence text; 2423 boolean frozenWithFocus; 2424 CharSequence error; 2425 2426 SavedState(Parcelable superState) { 2427 super(superState); 2428 } 2429 2430 @Override 2431 public void writeToParcel(Parcel out, int flags) { 2432 super.writeToParcel(out, flags); 2433 out.writeInt(selStart); 2434 out.writeInt(selEnd); 2435 out.writeInt(frozenWithFocus ? 1 : 0); 2436 TextUtils.writeToParcel(text, out, flags); 2437 2438 if (error == null) { 2439 out.writeInt(0); 2440 } else { 2441 out.writeInt(1); 2442 TextUtils.writeToParcel(error, out, flags); 2443 } 2444 } 2445 2446 @Override 2447 public String toString() { 2448 String str = "TextView.SavedState{" 2449 + Integer.toHexString(System.identityHashCode(this)) 2450 + " start=" + selStart + " end=" + selEnd; 2451 if (text != null) { 2452 str += " text=" + text; 2453 } 2454 return str + "}"; 2455 } 2456 2457 @SuppressWarnings("hiding") 2458 public static final Parcelable.Creator<SavedState> CREATOR 2459 = new Parcelable.Creator<SavedState>() { 2460 public SavedState createFromParcel(Parcel in) { 2461 return new SavedState(in); 2462 } 2463 2464 public SavedState[] newArray(int size) { 2465 return new SavedState[size]; 2466 } 2467 }; 2468 2469 private SavedState(Parcel in) { 2470 super(in); 2471 selStart = in.readInt(); 2472 selEnd = in.readInt(); 2473 frozenWithFocus = (in.readInt() != 0); 2474 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2475 2476 if (in.readInt() != 0) { 2477 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2478 } 2479 } 2480 } 2481 2482 @Override 2483 public Parcelable onSaveInstanceState() { 2484 Parcelable superState = super.onSaveInstanceState(); 2485 2486 // Save state if we are forced to 2487 boolean save = mFreezesText; 2488 int start = 0; 2489 int end = 0; 2490 2491 if (mText != null) { 2492 start = getSelectionStart(); 2493 end = getSelectionEnd(); 2494 if (start >= 0 || end >= 0) { 2495 // Or save state if there is a selection 2496 save = true; 2497 } 2498 } 2499 2500 if (save) { 2501 SavedState ss = new SavedState(superState); 2502 // XXX Should also save the current scroll position! 2503 ss.selStart = start; 2504 ss.selEnd = end; 2505 2506 if (mText instanceof Spanned) { 2507 /* 2508 * Calling setText() strips off any ChangeWatchers; 2509 * strip them now to avoid leaking references. 2510 * But do it to a copy so that if there are any 2511 * further changes to the text of this view, it 2512 * won't get into an inconsistent state. 2513 */ 2514 2515 Spannable sp = new SpannableString(mText); 2516 2517 for (ChangeWatcher cw : 2518 sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2519 sp.removeSpan(cw); 2520 } 2521 2522 ss.text = sp; 2523 } else { 2524 ss.text = mText.toString(); 2525 } 2526 2527 if (isFocused() && start >= 0 && end >= 0) { 2528 ss.frozenWithFocus = true; 2529 } 2530 2531 ss.error = mError; 2532 2533 return ss; 2534 } 2535 2536 return superState; 2537 } 2538 2539 @Override 2540 public void onRestoreInstanceState(Parcelable state) { 2541 if (!(state instanceof SavedState)) { 2542 super.onRestoreInstanceState(state); 2543 return; 2544 } 2545 2546 SavedState ss = (SavedState)state; 2547 super.onRestoreInstanceState(ss.getSuperState()); 2548 2549 // XXX restore buffer type too, as well as lots of other stuff 2550 if (ss.text != null) { 2551 setText(ss.text); 2552 } 2553 2554 if (ss.selStart >= 0 && ss.selEnd >= 0) { 2555 if (mText instanceof Spannable) { 2556 int len = mText.length(); 2557 2558 if (ss.selStart > len || ss.selEnd > len) { 2559 String restored = ""; 2560 2561 if (ss.text != null) { 2562 restored = "(restored) "; 2563 } 2564 2565 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 2566 "/" + ss.selEnd + " out of range for " + restored + 2567 "text " + mText); 2568 } else { 2569 Selection.setSelection((Spannable) mText, ss.selStart, 2570 ss.selEnd); 2571 2572 if (ss.frozenWithFocus) { 2573 mFrozenWithFocus = true; 2574 } 2575 } 2576 } 2577 } 2578 2579 if (ss.error != null) { 2580 final CharSequence error = ss.error; 2581 // Display the error later, after the first layout pass 2582 post(new Runnable() { 2583 public void run() { 2584 setError(error); 2585 } 2586 }); 2587 } 2588 } 2589 2590 /** 2591 * Control whether this text view saves its entire text contents when 2592 * freezing to an icicle, in addition to dynamic state such as cursor 2593 * position. By default this is false, not saving the text. Set to true 2594 * if the text in the text view is not being saved somewhere else in 2595 * persistent storage (such as in a content provider) so that if the 2596 * view is later thawed the user will not lose their data. 2597 * 2598 * @param freezesText Controls whether a frozen icicle should include the 2599 * entire text data: true to include it, false to not. 2600 * 2601 * @attr ref android.R.styleable#TextView_freezesText 2602 */ 2603 @android.view.RemotableViewMethod 2604 public void setFreezesText(boolean freezesText) { 2605 mFreezesText = freezesText; 2606 } 2607 2608 /** 2609 * Return whether this text view is including its entire text contents 2610 * in frozen icicles. 2611 * 2612 * @return Returns true if text is included, false if it isn't. 2613 * 2614 * @see #setFreezesText 2615 */ 2616 public boolean getFreezesText() { 2617 return mFreezesText; 2618 } 2619 2620 /////////////////////////////////////////////////////////////////////////// 2621 2622 /** 2623 * Sets the Factory used to create new Editables. 2624 */ 2625 public final void setEditableFactory(Editable.Factory factory) { 2626 mEditableFactory = factory; 2627 setText(mText); 2628 } 2629 2630 /** 2631 * Sets the Factory used to create new Spannables. 2632 */ 2633 public final void setSpannableFactory(Spannable.Factory factory) { 2634 mSpannableFactory = factory; 2635 setText(mText); 2636 } 2637 2638 /** 2639 * Sets the string value of the TextView. TextView <em>does not</em> accept 2640 * HTML-like formatting, which you can do with text strings in XML resource files. 2641 * To style your strings, attach android.text.style.* objects to a 2642 * {@link android.text.SpannableString SpannableString}, or see the 2643 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 2644 * Available Resource Types</a> documentation for an example of setting 2645 * formatted text in the XML resource file. 2646 * 2647 * @attr ref android.R.styleable#TextView_text 2648 */ 2649 @android.view.RemotableViewMethod 2650 public final void setText(CharSequence text) { 2651 setText(text, mBufferType); 2652 } 2653 2654 /** 2655 * Like {@link #setText(CharSequence)}, 2656 * except that the cursor position (if any) is retained in the new text. 2657 * 2658 * @param text The new text to place in the text view. 2659 * 2660 * @see #setText(CharSequence) 2661 */ 2662 @android.view.RemotableViewMethod 2663 public final void setTextKeepState(CharSequence text) { 2664 setTextKeepState(text, mBufferType); 2665 } 2666 2667 /** 2668 * Sets the text that this TextView is to display (see 2669 * {@link #setText(CharSequence)}) and also sets whether it is stored 2670 * in a styleable/spannable buffer and whether it is editable. 2671 * 2672 * @attr ref android.R.styleable#TextView_text 2673 * @attr ref android.R.styleable#TextView_bufferType 2674 */ 2675 public void setText(CharSequence text, BufferType type) { 2676 setText(text, type, true, 0); 2677 2678 if (mCharWrapper != null) { 2679 mCharWrapper.mChars = null; 2680 } 2681 } 2682 2683 private void setText(CharSequence text, BufferType type, 2684 boolean notifyBefore, int oldlen) { 2685 if (text == null) { 2686 text = ""; 2687 } 2688 2689 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 2690 2691 if (text instanceof Spanned && 2692 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 2693 setHorizontalFadingEdgeEnabled(true); 2694 setEllipsize(TextUtils.TruncateAt.MARQUEE); 2695 } 2696 2697 int n = mFilters.length; 2698 for (int i = 0; i < n; i++) { 2699 CharSequence out = mFilters[i].filter(text, 0, text.length(), 2700 EMPTY_SPANNED, 0, 0); 2701 if (out != null) { 2702 text = out; 2703 } 2704 } 2705 2706 if (notifyBefore) { 2707 if (mText != null) { 2708 oldlen = mText.length(); 2709 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 2710 } else { 2711 sendBeforeTextChanged("", 0, 0, text.length()); 2712 } 2713 } 2714 2715 boolean needEditableForNotification = false; 2716 2717 if (mListeners != null && mListeners.size() != 0) { 2718 needEditableForNotification = true; 2719 } 2720 2721 if (type == BufferType.EDITABLE || mInput != null || 2722 needEditableForNotification) { 2723 Editable t = mEditableFactory.newEditable(text); 2724 text = t; 2725 setFilters(t, mFilters); 2726 InputMethodManager imm = InputMethodManager.peekInstance(); 2727 if (imm != null) imm.restartInput(this); 2728 } else if (type == BufferType.SPANNABLE || mMovement != null) { 2729 text = mSpannableFactory.newSpannable(text); 2730 } else if (!(text instanceof CharWrapper)) { 2731 text = TextUtils.stringOrSpannedString(text); 2732 } 2733 2734 if (mAutoLinkMask != 0) { 2735 Spannable s2; 2736 2737 if (type == BufferType.EDITABLE || text instanceof Spannable) { 2738 s2 = (Spannable) text; 2739 } else { 2740 s2 = mSpannableFactory.newSpannable(text); 2741 } 2742 2743 if (Linkify.addLinks(s2, mAutoLinkMask)) { 2744 text = s2; 2745 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 2746 2747 /* 2748 * We must go ahead and set the text before changing the 2749 * movement method, because setMovementMethod() may call 2750 * setText() again to try to upgrade the buffer type. 2751 */ 2752 mText = text; 2753 2754 // Do not change the movement method for text that support text selection as it 2755 // would prevent an arbitrary cursor displacement. 2756 final boolean hasTextSelection = this instanceof EditText || mTextIsSelectable; 2757 if (mLinksClickable && !hasTextSelection) { 2758 setMovementMethod(LinkMovementMethod.getInstance()); 2759 } 2760 } 2761 } 2762 2763 mBufferType = type; 2764 mText = text; 2765 2766 if (mTransformation == null) 2767 mTransformed = text; 2768 else 2769 mTransformed = mTransformation.getTransformation(text, this); 2770 2771 final int textLength = text.length(); 2772 2773 if (text instanceof Spannable) { 2774 Spannable sp = (Spannable) text; 2775 2776 // Remove any ChangeWatchers that might have come 2777 // from other TextViews. 2778 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 2779 final int count = watchers.length; 2780 for (int i = 0; i < count; i++) 2781 sp.removeSpan(watchers[i]); 2782 2783 if (mChangeWatcher == null) 2784 mChangeWatcher = new ChangeWatcher(); 2785 2786 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 2787 (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 2788 2789 if (mInput != null) { 2790 sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2791 } 2792 2793 if (mTransformation != null) { 2794 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2795 2796 } 2797 2798 if (mMovement != null) { 2799 mMovement.initialize(this, (Spannable) text); 2800 2801 /* 2802 * Initializing the movement method will have set the 2803 * selection, so reset mSelectionMoved to keep that from 2804 * interfering with the normal on-focus selection-setting. 2805 */ 2806 mSelectionMoved = false; 2807 } 2808 } 2809 2810 if (mLayout != null) { 2811 checkForRelayout(); 2812 } 2813 2814 sendOnTextChanged(text, 0, oldlen, textLength); 2815 onTextChanged(text, 0, oldlen, textLength); 2816 2817 if (needEditableForNotification) { 2818 sendAfterTextChanged((Editable) text); 2819 } 2820 2821 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 2822 prepareCursorControllers(); 2823 } 2824 2825 /** 2826 * Sets the TextView to display the specified slice of the specified 2827 * char array. You must promise that you will not change the contents 2828 * of the array except for right before another call to setText(), 2829 * since the TextView has no way to know that the text 2830 * has changed and that it needs to invalidate and re-layout. 2831 */ 2832 public final void setText(char[] text, int start, int len) { 2833 int oldlen = 0; 2834 2835 if (start < 0 || len < 0 || start + len > text.length) { 2836 throw new IndexOutOfBoundsException(start + ", " + len); 2837 } 2838 2839 /* 2840 * We must do the before-notification here ourselves because if 2841 * the old text is a CharWrapper we destroy it before calling 2842 * into the normal path. 2843 */ 2844 if (mText != null) { 2845 oldlen = mText.length(); 2846 sendBeforeTextChanged(mText, 0, oldlen, len); 2847 } else { 2848 sendBeforeTextChanged("", 0, 0, len); 2849 } 2850 2851 if (mCharWrapper == null) { 2852 mCharWrapper = new CharWrapper(text, start, len); 2853 } else { 2854 mCharWrapper.set(text, start, len); 2855 } 2856 2857 setText(mCharWrapper, mBufferType, false, oldlen); 2858 } 2859 2860 private static class CharWrapper 2861 implements CharSequence, GetChars, GraphicsOperations { 2862 private char[] mChars; 2863 private int mStart, mLength; 2864 2865 public CharWrapper(char[] chars, int start, int len) { 2866 mChars = chars; 2867 mStart = start; 2868 mLength = len; 2869 } 2870 2871 /* package */ void set(char[] chars, int start, int len) { 2872 mChars = chars; 2873 mStart = start; 2874 mLength = len; 2875 } 2876 2877 public int length() { 2878 return mLength; 2879 } 2880 2881 public char charAt(int off) { 2882 return mChars[off + mStart]; 2883 } 2884 2885 @Override 2886 public String toString() { 2887 return new String(mChars, mStart, mLength); 2888 } 2889 2890 public CharSequence subSequence(int start, int end) { 2891 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2892 throw new IndexOutOfBoundsException(start + ", " + end); 2893 } 2894 2895 return new String(mChars, start + mStart, end - start); 2896 } 2897 2898 public void getChars(int start, int end, char[] buf, int off) { 2899 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2900 throw new IndexOutOfBoundsException(start + ", " + end); 2901 } 2902 2903 System.arraycopy(mChars, start + mStart, buf, off, end - start); 2904 } 2905 2906 public void drawText(Canvas c, int start, int end, 2907 float x, float y, Paint p) { 2908 c.drawText(mChars, start + mStart, end - start, x, y, p); 2909 } 2910 2911 public void drawTextRun(Canvas c, int start, int end, 2912 int contextStart, int contextEnd, float x, float y, int flags, Paint p) { 2913 int count = end - start; 2914 int contextCount = contextEnd - contextStart; 2915 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 2916 contextCount, x, y, flags, p); 2917 } 2918 2919 public float measureText(int start, int end, Paint p) { 2920 return p.measureText(mChars, start + mStart, end - start); 2921 } 2922 2923 public int getTextWidths(int start, int end, float[] widths, Paint p) { 2924 return p.getTextWidths(mChars, start + mStart, end - start, widths); 2925 } 2926 2927 public float getTextRunAdvances(int start, int end, int contextStart, 2928 int contextEnd, int flags, float[] advances, int advancesIndex, 2929 Paint p) { 2930 int count = end - start; 2931 int contextCount = contextEnd - contextStart; 2932 return p.getTextRunAdvances(mChars, start + mStart, count, 2933 contextStart + mStart, contextCount, flags, advances, 2934 advancesIndex); 2935 } 2936 2937 public int getTextRunCursor(int contextStart, int contextEnd, int flags, 2938 int offset, int cursorOpt, Paint p) { 2939 int contextCount = contextEnd - contextStart; 2940 return p.getTextRunCursor(mChars, contextStart + mStart, 2941 contextCount, flags, offset + mStart, cursorOpt); 2942 } 2943 } 2944 2945 /** 2946 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 2947 * except that the cursor position (if any) is retained in the new text. 2948 * 2949 * @see #setText(CharSequence, android.widget.TextView.BufferType) 2950 */ 2951 public final void setTextKeepState(CharSequence text, BufferType type) { 2952 int start = getSelectionStart(); 2953 int end = getSelectionEnd(); 2954 int len = text.length(); 2955 2956 setText(text, type); 2957 2958 if (start >= 0 || end >= 0) { 2959 if (mText instanceof Spannable) { 2960 Selection.setSelection((Spannable) mText, 2961 Math.max(0, Math.min(start, len)), 2962 Math.max(0, Math.min(end, len))); 2963 } 2964 } 2965 } 2966 2967 @android.view.RemotableViewMethod 2968 public final void setText(int resid) { 2969 setText(getContext().getResources().getText(resid)); 2970 } 2971 2972 public final void setText(int resid, BufferType type) { 2973 setText(getContext().getResources().getText(resid), type); 2974 } 2975 2976 /** 2977 * Sets the text to be displayed when the text of the TextView is empty. 2978 * Null means to use the normal empty text. The hint does not currently 2979 * participate in determining the size of the view. 2980 * 2981 * @attr ref android.R.styleable#TextView_hint 2982 */ 2983 @android.view.RemotableViewMethod 2984 public final void setHint(CharSequence hint) { 2985 mHint = TextUtils.stringOrSpannedString(hint); 2986 2987 if (mLayout != null) { 2988 checkForRelayout(); 2989 } 2990 2991 if (mText.length() == 0) { 2992 invalidate(); 2993 } 2994 } 2995 2996 /** 2997 * Sets the text to be displayed when the text of the TextView is empty, 2998 * from a resource. 2999 * 3000 * @attr ref android.R.styleable#TextView_hint 3001 */ 3002 @android.view.RemotableViewMethod 3003 public final void setHint(int resid) { 3004 setHint(getContext().getResources().getText(resid)); 3005 } 3006 3007 /** 3008 * Returns the hint that is displayed when the text of the TextView 3009 * is empty. 3010 * 3011 * @attr ref android.R.styleable#TextView_hint 3012 */ 3013 @ViewDebug.CapturedViewProperty 3014 public CharSequence getHint() { 3015 return mHint; 3016 } 3017 3018 private boolean isMultilineInputType(int type) { 3019 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 3020 (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 3021 } 3022 3023 /** 3024 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 3025 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 3026 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 3027 * then a soft keyboard will not be displayed for this text view. 3028 * 3029 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 3030 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 3031 * type. 3032 * 3033 * @see #getInputType() 3034 * @see #setRawInputType(int) 3035 * @see android.text.InputType 3036 * @attr ref android.R.styleable#TextView_inputType 3037 */ 3038 public void setInputType(int type) { 3039 final boolean wasPassword = isPasswordInputType(mInputType); 3040 final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType); 3041 setInputType(type, false); 3042 final boolean isPassword = isPasswordInputType(type); 3043 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 3044 boolean forceUpdate = false; 3045 if (isPassword) { 3046 setTransformationMethod(PasswordTransformationMethod.getInstance()); 3047 setTypefaceByIndex(MONOSPACE, 0); 3048 } else if (isVisiblePassword) { 3049 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3050 forceUpdate = true; 3051 } 3052 setTypefaceByIndex(MONOSPACE, 0); 3053 } else if (wasPassword || wasVisiblePassword) { 3054 // not in password mode, clean up typeface and transformation 3055 setTypefaceByIndex(-1, -1); 3056 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3057 forceUpdate = true; 3058 } 3059 } 3060 3061 boolean singleLine = !isMultilineInputType(type); 3062 3063 // We need to update the single line mode if it has changed or we 3064 // were previously in password mode. 3065 if (mSingleLine != singleLine || forceUpdate) { 3066 // Change single line mode, but only change the transformation if 3067 // we are not in password mode. 3068 applySingleLine(singleLine, !isPassword, true); 3069 } 3070 3071 InputMethodManager imm = InputMethodManager.peekInstance(); 3072 if (imm != null) imm.restartInput(this); 3073 } 3074 3075 /** 3076 * It would be better to rely on the input type for everything. A password inputType should have 3077 * a password transformation. We should hence use isPasswordInputType instead of this method. 3078 * 3079 * We should: 3080 * - Call setInputType in setKeyListener instead of changing the input type directly (which 3081 * would install the correct transformation). 3082 * - Refuse the installation of a non-password transformation in setTransformation if the input 3083 * type is password. 3084 * 3085 * However, this is like this for legacy reasons and we cannot break existing apps. This method 3086 * is useful since it matches what the user can see (obfuscated text or not). 3087 * 3088 * @return true if the current transformation method is of the password type. 3089 */ 3090 private boolean hasPasswordTransformationMethod() { 3091 return mTransformation instanceof PasswordTransformationMethod; 3092 } 3093 3094 private boolean isPasswordInputType(int inputType) { 3095 final int variation = 3096 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3097 return variation 3098 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 3099 || variation 3100 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 3101 || variation 3102 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 3103 } 3104 3105 private boolean isVisiblePasswordInputType(int inputType) { 3106 final int variation = 3107 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3108 return variation 3109 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 3110 } 3111 3112 /** 3113 * Directly change the content type integer of the text view, without 3114 * modifying any other state. 3115 * @see #setInputType(int) 3116 * @see android.text.InputType 3117 * @attr ref android.R.styleable#TextView_inputType 3118 */ 3119 public void setRawInputType(int type) { 3120 mInputType = type; 3121 } 3122 3123 private void setInputType(int type, boolean direct) { 3124 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 3125 KeyListener input; 3126 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 3127 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 3128 TextKeyListener.Capitalize cap; 3129 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 3130 cap = TextKeyListener.Capitalize.CHARACTERS; 3131 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 3132 cap = TextKeyListener.Capitalize.WORDS; 3133 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 3134 cap = TextKeyListener.Capitalize.SENTENCES; 3135 } else { 3136 cap = TextKeyListener.Capitalize.NONE; 3137 } 3138 input = TextKeyListener.getInstance(autotext, cap); 3139 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 3140 input = DigitsKeyListener.getInstance( 3141 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 3142 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 3143 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 3144 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 3145 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 3146 input = DateKeyListener.getInstance(); 3147 break; 3148 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 3149 input = TimeKeyListener.getInstance(); 3150 break; 3151 default: 3152 input = DateTimeKeyListener.getInstance(); 3153 break; 3154 } 3155 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 3156 input = DialerKeyListener.getInstance(); 3157 } else { 3158 input = TextKeyListener.getInstance(); 3159 } 3160 setRawInputType(type); 3161 if (direct) mInput = input; 3162 else { 3163 setKeyListenerOnly(input); 3164 } 3165 } 3166 3167 /** 3168 * Get the type of the content. 3169 * 3170 * @see #setInputType(int) 3171 * @see android.text.InputType 3172 */ 3173 public int getInputType() { 3174 return mInputType; 3175 } 3176 3177 /** 3178 * Change the editor type integer associated with the text view, which 3179 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3180 * has focus. 3181 * @see #getImeOptions 3182 * @see android.view.inputmethod.EditorInfo 3183 * @attr ref android.R.styleable#TextView_imeOptions 3184 */ 3185 public void setImeOptions(int imeOptions) { 3186 if (mInputContentType == null) { 3187 mInputContentType = new InputContentType(); 3188 } 3189 mInputContentType.imeOptions = imeOptions; 3190 } 3191 3192 /** 3193 * Get the type of the IME editor. 3194 * 3195 * @see #setImeOptions(int) 3196 * @see android.view.inputmethod.EditorInfo 3197 */ 3198 public int getImeOptions() { 3199 return mInputContentType != null 3200 ? mInputContentType.imeOptions : EditorInfo.IME_NULL; 3201 } 3202 3203 /** 3204 * Change the custom IME action associated with the text view, which 3205 * will be reported to an IME with {@link EditorInfo#actionLabel} 3206 * and {@link EditorInfo#actionId} when it has focus. 3207 * @see #getImeActionLabel 3208 * @see #getImeActionId 3209 * @see android.view.inputmethod.EditorInfo 3210 * @attr ref android.R.styleable#TextView_imeActionLabel 3211 * @attr ref android.R.styleable#TextView_imeActionId 3212 */ 3213 public void setImeActionLabel(CharSequence label, int actionId) { 3214 if (mInputContentType == null) { 3215 mInputContentType = new InputContentType(); 3216 } 3217 mInputContentType.imeActionLabel = label; 3218 mInputContentType.imeActionId = actionId; 3219 } 3220 3221 /** 3222 * Get the IME action label previous set with {@link #setImeActionLabel}. 3223 * 3224 * @see #setImeActionLabel 3225 * @see android.view.inputmethod.EditorInfo 3226 */ 3227 public CharSequence getImeActionLabel() { 3228 return mInputContentType != null 3229 ? mInputContentType.imeActionLabel : null; 3230 } 3231 3232 /** 3233 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3234 * 3235 * @see #setImeActionLabel 3236 * @see android.view.inputmethod.EditorInfo 3237 */ 3238 public int getImeActionId() { 3239 return mInputContentType != null 3240 ? mInputContentType.imeActionId : 0; 3241 } 3242 3243 /** 3244 * Set a special listener to be called when an action is performed 3245 * on the text view. This will be called when the enter key is pressed, 3246 * or when an action supplied to the IME is selected by the user. Setting 3247 * this means that the normal hard key event will not insert a newline 3248 * into the text view, even if it is multi-line; holding down the ALT 3249 * modifier will, however, allow the user to insert a newline character. 3250 */ 3251 public void setOnEditorActionListener(OnEditorActionListener l) { 3252 if (mInputContentType == null) { 3253 mInputContentType = new InputContentType(); 3254 } 3255 mInputContentType.onEditorActionListener = l; 3256 } 3257 3258 /** 3259 * Called when an attached input method calls 3260 * {@link InputConnection#performEditorAction(int) 3261 * InputConnection.performEditorAction()} 3262 * for this text view. The default implementation will call your action 3263 * listener supplied to {@link #setOnEditorActionListener}, or perform 3264 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3265 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 3266 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 3267 * EditorInfo.IME_ACTION_DONE}. 3268 * 3269 * <p>For backwards compatibility, if no IME options have been set and the 3270 * text view would not normally advance focus on enter, then 3271 * the NEXT and DONE actions received here will be turned into an enter 3272 * key down/up pair to go through the normal key handling. 3273 * 3274 * @param actionCode The code of the action being performed. 3275 * 3276 * @see #setOnEditorActionListener 3277 */ 3278 public void onEditorAction(int actionCode) { 3279 final InputContentType ict = mInputContentType; 3280 if (ict != null) { 3281 if (ict.onEditorActionListener != null) { 3282 if (ict.onEditorActionListener.onEditorAction(this, 3283 actionCode, null)) { 3284 return; 3285 } 3286 } 3287 3288 // This is the handling for some default action. 3289 // Note that for backwards compatibility we don't do this 3290 // default handling if explicit ime options have not been given, 3291 // instead turning this into the normal enter key codes that an 3292 // app may be expecting. 3293 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3294 View v = focusSearch(FOCUS_DOWN); 3295 if (v != null) { 3296 if (!v.requestFocus(FOCUS_DOWN)) { 3297 throw new IllegalStateException("focus search returned a view " + 3298 "that wasn't able to take focus!"); 3299 } 3300 } 3301 return; 3302 3303 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 3304 View v = focusSearch(FOCUS_UP); 3305 if (v != null) { 3306 if (!v.requestFocus(FOCUS_UP)) { 3307 throw new IllegalStateException("focus search returned a view " + 3308 "that wasn't able to take focus!"); 3309 } 3310 } 3311 return; 3312 3313 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3314 InputMethodManager imm = InputMethodManager.peekInstance(); 3315 if (imm != null) { 3316 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3317 } 3318 return; 3319 } 3320 } 3321 3322 Handler h = getHandler(); 3323 if (h != null) { 3324 long eventTime = SystemClock.uptimeMillis(); 3325 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3326 new KeyEvent(eventTime, eventTime, 3327 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 3328 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3329 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3330 | KeyEvent.FLAG_EDITOR_ACTION))); 3331 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3332 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3333 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 3334 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3335 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3336 | KeyEvent.FLAG_EDITOR_ACTION))); 3337 } 3338 } 3339 3340 /** 3341 * Set the private content type of the text, which is the 3342 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3343 * field that will be filled in when creating an input connection. 3344 * 3345 * @see #getPrivateImeOptions() 3346 * @see EditorInfo#privateImeOptions 3347 * @attr ref android.R.styleable#TextView_privateImeOptions 3348 */ 3349 public void setPrivateImeOptions(String type) { 3350 if (mInputContentType == null) mInputContentType = new InputContentType(); 3351 mInputContentType.privateImeOptions = type; 3352 } 3353 3354 /** 3355 * Get the private type of the content. 3356 * 3357 * @see #setPrivateImeOptions(String) 3358 * @see EditorInfo#privateImeOptions 3359 */ 3360 public String getPrivateImeOptions() { 3361 return mInputContentType != null 3362 ? mInputContentType.privateImeOptions : null; 3363 } 3364 3365 /** 3366 * Set the extra input data of the text, which is the 3367 * {@link EditorInfo#extras TextBoxAttribute.extras} 3368 * Bundle that will be filled in when creating an input connection. The 3369 * given integer is the resource ID of an XML resource holding an 3370 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3371 * 3372 * @see #getInputExtras(boolean) 3373 * @see EditorInfo#extras 3374 * @attr ref android.R.styleable#TextView_editorExtras 3375 */ 3376 public void setInputExtras(int xmlResId) 3377 throws XmlPullParserException, IOException { 3378 XmlResourceParser parser = getResources().getXml(xmlResId); 3379 if (mInputContentType == null) mInputContentType = new InputContentType(); 3380 mInputContentType.extras = new Bundle(); 3381 getResources().parseBundleExtras(parser, mInputContentType.extras); 3382 } 3383 3384 /** 3385 * Retrieve the input extras currently associated with the text view, which 3386 * can be viewed as well as modified. 3387 * 3388 * @param create If true, the extras will be created if they don't already 3389 * exist. Otherwise, null will be returned if none have been created. 3390 * @see #setInputExtras(int) 3391 * @see EditorInfo#extras 3392 * @attr ref android.R.styleable#TextView_editorExtras 3393 */ 3394 public Bundle getInputExtras(boolean create) { 3395 if (mInputContentType == null) { 3396 if (!create) return null; 3397 mInputContentType = new InputContentType(); 3398 } 3399 if (mInputContentType.extras == null) { 3400 if (!create) return null; 3401 mInputContentType.extras = new Bundle(); 3402 } 3403 return mInputContentType.extras; 3404 } 3405 3406 /** 3407 * Returns the error message that was set to be displayed with 3408 * {@link #setError}, or <code>null</code> if no error was set 3409 * or if it the error was cleared by the widget after user input. 3410 */ 3411 public CharSequence getError() { 3412 return mError; 3413 } 3414 3415 /** 3416 * Sets the right-hand compound drawable of the TextView to the "error" 3417 * icon and sets an error message that will be displayed in a popup when 3418 * the TextView has focus. The icon and error message will be reset to 3419 * null when any key events cause changes to the TextView's text. If the 3420 * <code>error</code> is <code>null</code>, the error message and icon 3421 * will be cleared. 3422 */ 3423 @android.view.RemotableViewMethod 3424 public void setError(CharSequence error) { 3425 if (error == null) { 3426 setError(null, null); 3427 } else { 3428 Drawable dr = getContext().getResources(). 3429 getDrawable(com.android.internal.R.drawable. 3430 indicator_input_error); 3431 3432 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3433 setError(error, dr); 3434 } 3435 } 3436 3437 /** 3438 * Sets the right-hand compound drawable of the TextView to the specified 3439 * icon and sets an error message that will be displayed in a popup when 3440 * the TextView has focus. The icon and error message will be reset to 3441 * null when any key events cause changes to the TextView's text. The 3442 * drawable must already have had {@link Drawable#setBounds} set on it. 3443 * If the <code>error</code> is <code>null</code>, the error message will 3444 * be cleared (and you should provide a <code>null</code> icon as well). 3445 */ 3446 public void setError(CharSequence error, Drawable icon) { 3447 error = TextUtils.stringOrSpannedString(error); 3448 3449 mError = error; 3450 mErrorWasChanged = true; 3451 final Drawables dr = mDrawables; 3452 if (dr != null) { 3453 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, 3454 icon, dr.mDrawableBottom); 3455 } else { 3456 setCompoundDrawables(null, null, icon, null); 3457 } 3458 3459 if (error == null) { 3460 if (mPopup != null) { 3461 if (mPopup.isShowing()) { 3462 mPopup.dismiss(); 3463 } 3464 3465 mPopup = null; 3466 } 3467 } else { 3468 if (isFocused()) { 3469 showError(); 3470 } 3471 } 3472 } 3473 3474 private void showError() { 3475 if (getWindowToken() == null) { 3476 mShowErrorAfterAttach = true; 3477 return; 3478 } 3479 3480 if (mPopup == null) { 3481 LayoutInflater inflater = LayoutInflater.from(getContext()); 3482 final TextView err = (TextView) inflater.inflate(com.android.internal.R.layout.textview_hint, 3483 null); 3484 3485 final float scale = getResources().getDisplayMetrics().density; 3486 mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), 3487 (int) (50 * scale + 0.5f)); 3488 mPopup.setFocusable(false); 3489 // The user is entering text, so the input method is needed. We 3490 // don't want the popup to be displayed on top of it. 3491 mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 3492 } 3493 3494 TextView tv = (TextView) mPopup.getContentView(); 3495 chooseSize(mPopup, mError, tv); 3496 tv.setText(mError); 3497 3498 mPopup.showAsDropDown(this, getErrorX(), getErrorY()); 3499 mPopup.fixDirection(mPopup.isAboveAnchor()); 3500 } 3501 3502 private static class ErrorPopup extends PopupWindow { 3503 private boolean mAbove = false; 3504 private final TextView mView; 3505 3506 ErrorPopup(TextView v, int width, int height) { 3507 super(v, width, height); 3508 mView = v; 3509 } 3510 3511 void fixDirection(boolean above) { 3512 mAbove = above; 3513 3514 if (above) { 3515 mView.setBackgroundResource(com.android.internal.R.drawable.popup_inline_error_above); 3516 } else { 3517 mView.setBackgroundResource(com.android.internal.R.drawable.popup_inline_error); 3518 } 3519 } 3520 3521 @Override 3522 public void update(int x, int y, int w, int h, boolean force) { 3523 super.update(x, y, w, h, force); 3524 3525 boolean above = isAboveAnchor(); 3526 if (above != mAbove) { 3527 fixDirection(above); 3528 } 3529 } 3530 } 3531 3532 /** 3533 * Returns the Y offset to make the pointy top of the error point 3534 * at the middle of the error icon. 3535 */ 3536 private int getErrorX() { 3537 /* 3538 * The "25" is the distance between the point and the right edge 3539 * of the background 3540 */ 3541 final float scale = getResources().getDisplayMetrics().density; 3542 3543 final Drawables dr = mDrawables; 3544 return getWidth() - mPopup.getWidth() 3545 - getPaddingRight() 3546 - (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 3547 } 3548 3549 /** 3550 * Returns the Y offset to make the pointy top of the error point 3551 * at the bottom of the error icon. 3552 */ 3553 private int getErrorY() { 3554 /* 3555 * Compound, not extended, because the icon is not clipped 3556 * if the text height is smaller. 3557 */ 3558 int vspace = mBottom - mTop - 3559 getCompoundPaddingBottom() - getCompoundPaddingTop(); 3560 3561 final Drawables dr = mDrawables; 3562 int icontop = getCompoundPaddingTop() 3563 + (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 3564 3565 /* 3566 * The "2" is the distance between the point and the top edge 3567 * of the background. 3568 */ 3569 3570 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) 3571 - getHeight() - 2; 3572 } 3573 3574 private void hideError() { 3575 if (mPopup != null) { 3576 if (mPopup.isShowing()) { 3577 mPopup.dismiss(); 3578 } 3579 } 3580 3581 mShowErrorAfterAttach = false; 3582 } 3583 3584 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 3585 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 3586 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 3587 3588 /* 3589 * Figure out how big the text would be if we laid it out to the 3590 * full width of this view minus the border. 3591 */ 3592 int cap = getWidth() - wid; 3593 if (cap < 0) { 3594 cap = 200; // We must not be measured yet -- setFrame() will fix it. 3595 } 3596 3597 Layout l = new StaticLayout(text, tv.getPaint(), cap, 3598 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 3599 float max = 0; 3600 for (int i = 0; i < l.getLineCount(); i++) { 3601 max = Math.max(max, l.getLineWidth(i)); 3602 } 3603 3604 /* 3605 * Now set the popup size to be big enough for the text plus the border. 3606 */ 3607 pop.setWidth(wid + (int) Math.ceil(max)); 3608 pop.setHeight(ht + l.getHeight()); 3609 } 3610 3611 3612 @Override 3613 protected boolean setFrame(int l, int t, int r, int b) { 3614 boolean result = super.setFrame(l, t, r, b); 3615 3616 if (mPopup != null) { 3617 TextView tv = (TextView) mPopup.getContentView(); 3618 chooseSize(mPopup, mError, tv); 3619 mPopup.update(this, getErrorX(), getErrorY(), 3620 mPopup.getWidth(), mPopup.getHeight()); 3621 } 3622 3623 restartMarqueeIfNeeded(); 3624 3625 return result; 3626 } 3627 3628 private void restartMarqueeIfNeeded() { 3629 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 3630 mRestartMarquee = false; 3631 startMarquee(); 3632 } 3633 } 3634 3635 /** 3636 * Sets the list of input filters that will be used if the buffer is 3637 * Editable. Has no effect otherwise. 3638 * 3639 * @attr ref android.R.styleable#TextView_maxLength 3640 */ 3641 public void setFilters(InputFilter[] filters) { 3642 if (filters == null) { 3643 throw new IllegalArgumentException(); 3644 } 3645 3646 mFilters = filters; 3647 3648 if (mText instanceof Editable) { 3649 setFilters((Editable) mText, filters); 3650 } 3651 } 3652 3653 /** 3654 * Sets the list of input filters on the specified Editable, 3655 * and includes mInput in the list if it is an InputFilter. 3656 */ 3657 private void setFilters(Editable e, InputFilter[] filters) { 3658 if (mInput instanceof InputFilter) { 3659 InputFilter[] nf = new InputFilter[filters.length + 1]; 3660 3661 System.arraycopy(filters, 0, nf, 0, filters.length); 3662 nf[filters.length] = (InputFilter) mInput; 3663 3664 e.setFilters(nf); 3665 } else { 3666 e.setFilters(filters); 3667 } 3668 } 3669 3670 /** 3671 * Returns the current list of input filters. 3672 */ 3673 public InputFilter[] getFilters() { 3674 return mFilters; 3675 } 3676 3677 ///////////////////////////////////////////////////////////////////////// 3678 3679 private int getVerticalOffset(boolean forceNormal) { 3680 int voffset = 0; 3681 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3682 3683 Layout l = mLayout; 3684 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3685 l = mHintLayout; 3686 } 3687 3688 if (gravity != Gravity.TOP) { 3689 int boxht; 3690 3691 if (l == mHintLayout) { 3692 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3693 getCompoundPaddingBottom(); 3694 } else { 3695 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3696 getExtendedPaddingBottom(); 3697 } 3698 int textht = l.getHeight(); 3699 3700 if (textht < boxht) { 3701 if (gravity == Gravity.BOTTOM) 3702 voffset = boxht - textht; 3703 else // (gravity == Gravity.CENTER_VERTICAL) 3704 voffset = (boxht - textht) >> 1; 3705 } 3706 } 3707 return voffset; 3708 } 3709 3710 private int getBottomVerticalOffset(boolean forceNormal) { 3711 int voffset = 0; 3712 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3713 3714 Layout l = mLayout; 3715 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3716 l = mHintLayout; 3717 } 3718 3719 if (gravity != Gravity.BOTTOM) { 3720 int boxht; 3721 3722 if (l == mHintLayout) { 3723 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3724 getCompoundPaddingBottom(); 3725 } else { 3726 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3727 getExtendedPaddingBottom(); 3728 } 3729 int textht = l.getHeight(); 3730 3731 if (textht < boxht) { 3732 if (gravity == Gravity.TOP) 3733 voffset = boxht - textht; 3734 else // (gravity == Gravity.CENTER_VERTICAL) 3735 voffset = (boxht - textht) >> 1; 3736 } 3737 } 3738 return voffset; 3739 } 3740 3741 private void invalidateCursorPath() { 3742 if (mHighlightPathBogus) { 3743 invalidateCursor(); 3744 } else { 3745 synchronized (sTempRect) { 3746 /* 3747 * The reason for this concern about the thickness of the 3748 * cursor and doing the floor/ceil on the coordinates is that 3749 * some EditTexts (notably textfields in the Browser) have 3750 * anti-aliased text where not all the characters are 3751 * necessarily at integer-multiple locations. This should 3752 * make sure the entire cursor gets invalidated instead of 3753 * sometimes missing half a pixel. 3754 */ 3755 3756 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 3757 if (thick < 1.0f) { 3758 thick = 1.0f; 3759 } 3760 3761 thick /= 2; 3762 3763 mHighlightPath.computeBounds(sTempRect, false); 3764 3765 int left = getCompoundPaddingLeft(); 3766 int top = getExtendedPaddingTop() + getVerticalOffset(true); 3767 3768 invalidate((int) FloatMath.floor(left + sTempRect.left - thick), 3769 (int) FloatMath.floor(top + sTempRect.top - thick), 3770 (int) FloatMath.ceil(left + sTempRect.right + thick), 3771 (int) FloatMath.ceil(top + sTempRect.bottom + thick)); 3772 } 3773 } 3774 } 3775 3776 private void invalidateCursor() { 3777 int where = getSelectionEnd(); 3778 3779 invalidateCursor(where, where, where); 3780 } 3781 3782 private void invalidateCursor(int a, int b, int c) { 3783 if (mLayout == null) { 3784 invalidate(); 3785 } else { 3786 if (a >= 0 || b >= 0 || c >= 0) { 3787 int first = Math.min(Math.min(a, b), c); 3788 int last = Math.max(Math.max(a, b), c); 3789 3790 int line = mLayout.getLineForOffset(first); 3791 int top = mLayout.getLineTop(line); 3792 3793 // This is ridiculous, but the descent from the line above 3794 // can hang down into the line we really want to redraw, 3795 // so we have to invalidate part of the line above to make 3796 // sure everything that needs to be redrawn really is. 3797 // (But not the whole line above, because that would cause 3798 // the same problem with the descenders on the line above it!) 3799 if (line > 0) { 3800 top -= mLayout.getLineDescent(line - 1); 3801 } 3802 3803 int line2; 3804 3805 if (first == last) 3806 line2 = line; 3807 else 3808 line2 = mLayout.getLineForOffset(last); 3809 3810 int bottom = mLayout.getLineTop(line2 + 1); 3811 int voffset = getVerticalOffset(true); 3812 3813 int left = getCompoundPaddingLeft() + mScrollX; 3814 invalidate(left, top + voffset + getExtendedPaddingTop(), 3815 left + getWidth() - getCompoundPaddingLeft() - 3816 getCompoundPaddingRight(), 3817 bottom + voffset + getExtendedPaddingTop()); 3818 } 3819 } 3820 } 3821 3822 private void registerForPreDraw() { 3823 final ViewTreeObserver observer = getViewTreeObserver(); 3824 if (observer == null) { 3825 return; 3826 } 3827 3828 if (mPreDrawState == PREDRAW_NOT_REGISTERED) { 3829 observer.addOnPreDrawListener(this); 3830 mPreDrawState = PREDRAW_PENDING; 3831 } else if (mPreDrawState == PREDRAW_DONE) { 3832 mPreDrawState = PREDRAW_PENDING; 3833 } 3834 3835 // else state is PREDRAW_PENDING, so keep waiting. 3836 } 3837 3838 /** 3839 * {@inheritDoc} 3840 */ 3841 public boolean onPreDraw() { 3842 if (mPreDrawState != PREDRAW_PENDING) { 3843 return true; 3844 } 3845 3846 if (mLayout == null) { 3847 assumeLayout(); 3848 } 3849 3850 boolean changed = false; 3851 3852 if (mMovement != null) { 3853 /* This code also provides auto-scrolling when a cursor is moved using a 3854 * CursorController (insertion point or selection limits). 3855 * For selection, ensure start or end is visible depending on controller's state. 3856 */ 3857 int curs = getSelectionEnd(); 3858 // Do not create the controller if it is not already created. 3859 if (mSelectionModifierCursorController != null && 3860 mSelectionModifierCursorController.isSelectionStartDragged()) { 3861 curs = getSelectionStart(); 3862 } 3863 3864 /* 3865 * TODO: This should really only keep the end in view if 3866 * it already was before the text changed. I'm not sure 3867 * of a good way to tell from here if it was. 3868 */ 3869 if (curs < 0 && 3870 (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 3871 curs = mText.length(); 3872 } 3873 3874 if (curs >= 0) { 3875 changed = bringPointIntoView(curs); 3876 } 3877 } else { 3878 changed = bringTextIntoView(); 3879 } 3880 3881 // This has to be checked here since: 3882 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 3883 // a screen rotation) since layout is not yet initialized at that point. 3884 if (mCreatedWithASelection) { 3885 startSelectionActionMode(); 3886 mCreatedWithASelection = false; 3887 } 3888 3889 // Phone specific code (there is no ExtractEditText on tablets). 3890 // ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can 3891 // not be set. Do the test here instead. 3892 if (this instanceof ExtractEditText && hasSelection()) { 3893 startSelectionActionMode(); 3894 } 3895 3896 mPreDrawState = PREDRAW_DONE; 3897 return !changed; 3898 } 3899 3900 @Override 3901 protected void onAttachedToWindow() { 3902 super.onAttachedToWindow(); 3903 3904 mTemporaryDetach = false; 3905 3906 if (mShowErrorAfterAttach) { 3907 showError(); 3908 mShowErrorAfterAttach = false; 3909 } 3910 3911 final ViewTreeObserver observer = getViewTreeObserver(); 3912 if (observer != null) { 3913 // No need to create the controller. 3914 // The get method will add the listener on controller creation. 3915 if (mInsertionPointCursorController != null) { 3916 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 3917 } 3918 if (mSelectionModifierCursorController != null) { 3919 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 3920 } 3921 } 3922 } 3923 3924 @Override 3925 protected void onDetachedFromWindow() { 3926 super.onDetachedFromWindow(); 3927 3928 final ViewTreeObserver observer = getViewTreeObserver(); 3929 if (observer != null) { 3930 if (mPreDrawState != PREDRAW_NOT_REGISTERED) { 3931 observer.removeOnPreDrawListener(this); 3932 mPreDrawState = PREDRAW_NOT_REGISTERED; 3933 } 3934 // No need to create the controller, as getXXController would. 3935 if (mInsertionPointCursorController != null) { 3936 observer.removeOnTouchModeChangeListener(mInsertionPointCursorController); 3937 } 3938 if (mSelectionModifierCursorController != null) { 3939 observer.removeOnTouchModeChangeListener(mSelectionModifierCursorController); 3940 } 3941 } 3942 3943 if (mError != null) { 3944 hideError(); 3945 } 3946 3947 if (mBlink != null) { 3948 mBlink.cancel(); 3949 } 3950 3951 if (mInsertionPointCursorController != null) { 3952 mInsertionPointCursorController.onDetached(); 3953 } 3954 3955 if (mSelectionModifierCursorController != null) { 3956 mSelectionModifierCursorController.onDetached(); 3957 } 3958 3959 hideControllers(); 3960 } 3961 3962 @Override 3963 protected boolean isPaddingOffsetRequired() { 3964 return mShadowRadius != 0 || mDrawables != null; 3965 } 3966 3967 @Override 3968 protected int getLeftPaddingOffset() { 3969 return getCompoundPaddingLeft() - mPaddingLeft + 3970 (int) Math.min(0, mShadowDx - mShadowRadius); 3971 } 3972 3973 @Override 3974 protected int getTopPaddingOffset() { 3975 return (int) Math.min(0, mShadowDy - mShadowRadius); 3976 } 3977 3978 @Override 3979 protected int getBottomPaddingOffset() { 3980 return (int) Math.max(0, mShadowDy + mShadowRadius); 3981 } 3982 3983 @Override 3984 protected int getRightPaddingOffset() { 3985 return -(getCompoundPaddingRight() - mPaddingRight) + 3986 (int) Math.max(0, mShadowDx + mShadowRadius); 3987 } 3988 3989 @Override 3990 protected boolean verifyDrawable(Drawable who) { 3991 final boolean verified = super.verifyDrawable(who); 3992 if (!verified && mDrawables != null) { 3993 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 3994 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom; 3995 } 3996 return verified; 3997 } 3998 3999 @Override 4000 public void jumpDrawablesToCurrentState() { 4001 super.jumpDrawablesToCurrentState(); 4002 if (mDrawables != null) { 4003 if (mDrawables.mDrawableLeft != null) { 4004 mDrawables.mDrawableLeft.jumpToCurrentState(); 4005 } 4006 if (mDrawables.mDrawableTop != null) { 4007 mDrawables.mDrawableTop.jumpToCurrentState(); 4008 } 4009 if (mDrawables.mDrawableRight != null) { 4010 mDrawables.mDrawableRight.jumpToCurrentState(); 4011 } 4012 if (mDrawables.mDrawableBottom != null) { 4013 mDrawables.mDrawableBottom.jumpToCurrentState(); 4014 } 4015 } 4016 } 4017 4018 @Override 4019 public void invalidateDrawable(Drawable drawable) { 4020 if (verifyDrawable(drawable)) { 4021 final Rect dirty = drawable.getBounds(); 4022 int scrollX = mScrollX; 4023 int scrollY = mScrollY; 4024 4025 // IMPORTANT: The coordinates below are based on the coordinates computed 4026 // for each compound drawable in onDraw(). Make sure to update each section 4027 // accordingly. 4028 final TextView.Drawables drawables = mDrawables; 4029 if (drawables != null) { 4030 if (drawable == drawables.mDrawableLeft) { 4031 final int compoundPaddingTop = getCompoundPaddingTop(); 4032 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4033 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4034 4035 scrollX += mPaddingLeft; 4036 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 4037 } else if (drawable == drawables.mDrawableRight) { 4038 final int compoundPaddingTop = getCompoundPaddingTop(); 4039 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4040 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4041 4042 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 4043 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 4044 } else if (drawable == drawables.mDrawableTop) { 4045 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4046 final int compoundPaddingRight = getCompoundPaddingRight(); 4047 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4048 4049 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 4050 scrollY += mPaddingTop; 4051 } else if (drawable == drawables.mDrawableBottom) { 4052 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4053 final int compoundPaddingRight = getCompoundPaddingRight(); 4054 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4055 4056 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 4057 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 4058 } 4059 } 4060 4061 invalidate(dirty.left + scrollX, dirty.top + scrollY, 4062 dirty.right + scrollX, dirty.bottom + scrollY); 4063 } 4064 } 4065 4066 @Override 4067 protected boolean onSetAlpha(int alpha) { 4068 // Alpha is supported if and only if the drawing can be done in one pass. 4069 // TODO text with spans with a background color currently do not respect this alpha. 4070 if (getBackground() == null) { 4071 mCurrentAlpha = alpha; 4072 final Drawables dr = mDrawables; 4073 if (dr != null) { 4074 if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha); 4075 if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha); 4076 if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha); 4077 if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha); 4078 } 4079 return true; 4080 } 4081 4082 mCurrentAlpha = 255; 4083 return false; 4084 } 4085 4086 /** 4087 * When a TextView is used to display a useful piece of information to the user (such as a 4088 * contact's address), it should be made selectable, so that the user can select and copy this 4089 * content. 4090 * 4091 * Use {@link #setTextIsSelectable(boolean)} or the 4092 * {@link android.R.styleable#TextView_textIsSelectable} XML attribute to make this TextView 4093 * selectable (text is not selectable by default). 4094 * 4095 * Note that the content of an EditText is always selectable. 4096 * 4097 * @return True if the text displayed in this TextView can be selected by the user. 4098 * 4099 * @attr ref android.R.styleable#TextView_textIsSelectable 4100 */ 4101 public boolean isTextSelectable() { 4102 return mTextIsSelectable; 4103 } 4104 4105 /** 4106 * Sets whether or not (default) the content of this view is selectable by the user. 4107 * 4108 * Note that this methods affect the {@link #setFocusable(boolean)}, 4109 * {@link #setFocusableInTouchMode(boolean)} {@link #setClickable(boolean)} and 4110 * {@link #setLongClickable(boolean)} states and you may want to restore these if they were 4111 * customized. 4112 * 4113 * See {@link #isTextSelectable} for details. 4114 * 4115 * @param selectable Whether or not the content of this TextView should be selectable. 4116 */ 4117 public void setTextIsSelectable(boolean selectable) { 4118 if (mTextIsSelectable == selectable) return; 4119 4120 mTextIsSelectable = selectable; 4121 4122 setFocusableInTouchMode(selectable); 4123 setFocusable(selectable); 4124 setClickable(selectable); 4125 setLongClickable(selectable); 4126 4127 // mInputType is already EditorInfo.TYPE_NULL and mInput is null; 4128 4129 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 4130 setText(getText(), selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 4131 4132 // Called by setText above, but safer in case of future code changes 4133 prepareCursorControllers(); 4134 } 4135 4136 @Override 4137 protected int[] onCreateDrawableState(int extraSpace) { 4138 final int[] drawableState = super.onCreateDrawableState(extraSpace + 1); 4139 4140 if (!mSingleLine) { 4141 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 4142 } 4143 4144 if (mTextIsSelectable) { 4145 // Disable pressed state, which was introduced when TextView was made clickable. 4146 // Prevents text color change. 4147 // setClickable(false) would have a similar effect, but it also disables focus changes 4148 // and long press actions, which are both needed by text selection. 4149 final int length = drawableState.length; 4150 for (int i = 0; i < length; i++) { 4151 if (drawableState[i] == R.attr.state_pressed) { 4152 final int[] nonPressedState = new int[length - 1]; 4153 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 4154 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 4155 return nonPressedState; 4156 } 4157 } 4158 } 4159 4160 return drawableState; 4161 } 4162 4163 @Override 4164 protected void onDraw(Canvas canvas) { 4165 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return; 4166 4167 restartMarqueeIfNeeded(); 4168 4169 // Draw the background for this view 4170 super.onDraw(canvas); 4171 4172 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4173 final int compoundPaddingTop = getCompoundPaddingTop(); 4174 final int compoundPaddingRight = getCompoundPaddingRight(); 4175 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4176 final int scrollX = mScrollX; 4177 final int scrollY = mScrollY; 4178 final int right = mRight; 4179 final int left = mLeft; 4180 final int bottom = mBottom; 4181 final int top = mTop; 4182 4183 final Drawables dr = mDrawables; 4184 if (dr != null) { 4185 /* 4186 * Compound, not extended, because the icon is not clipped 4187 * if the text height is smaller. 4188 */ 4189 4190 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 4191 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 4192 4193 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4194 // Make sure to update invalidateDrawable() when changing this code. 4195 if (dr.mDrawableLeft != null) { 4196 canvas.save(); 4197 canvas.translate(scrollX + mPaddingLeft, 4198 scrollY + compoundPaddingTop + 4199 (vspace - dr.mDrawableHeightLeft) / 2); 4200 dr.mDrawableLeft.draw(canvas); 4201 canvas.restore(); 4202 } 4203 4204 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4205 // Make sure to update invalidateDrawable() when changing this code. 4206 if (dr.mDrawableRight != null) { 4207 canvas.save(); 4208 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 4209 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 4210 dr.mDrawableRight.draw(canvas); 4211 canvas.restore(); 4212 } 4213 4214 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4215 // Make sure to update invalidateDrawable() when changing this code. 4216 if (dr.mDrawableTop != null) { 4217 canvas.save(); 4218 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 4219 scrollY + mPaddingTop); 4220 dr.mDrawableTop.draw(canvas); 4221 canvas.restore(); 4222 } 4223 4224 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4225 // Make sure to update invalidateDrawable() when changing this code. 4226 if (dr.mDrawableBottom != null) { 4227 canvas.save(); 4228 canvas.translate(scrollX + compoundPaddingLeft + 4229 (hspace - dr.mDrawableWidthBottom) / 2, 4230 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 4231 dr.mDrawableBottom.draw(canvas); 4232 canvas.restore(); 4233 } 4234 } 4235 4236 if (mPreDrawState == PREDRAW_DONE) { 4237 final ViewTreeObserver observer = getViewTreeObserver(); 4238 if (observer != null) { 4239 observer.removeOnPreDrawListener(this); 4240 mPreDrawState = PREDRAW_NOT_REGISTERED; 4241 } 4242 } 4243 4244 int color = mCurTextColor; 4245 4246 if (mLayout == null) { 4247 assumeLayout(); 4248 } 4249 4250 Layout layout = mLayout; 4251 int cursorcolor = color; 4252 4253 if (mHint != null && mText.length() == 0) { 4254 if (mHintTextColor != null) { 4255 color = mCurHintTextColor; 4256 } 4257 4258 layout = mHintLayout; 4259 } 4260 4261 mTextPaint.setColor(color); 4262 if (mCurrentAlpha != 255) { 4263 // If set, the alpha will override the color's alpha. Multiply the alphas. 4264 mTextPaint.setAlpha((mCurrentAlpha * Color.alpha(color)) / 255); 4265 } 4266 mTextPaint.drawableState = getDrawableState(); 4267 4268 canvas.save(); 4269 /* Would be faster if we didn't have to do this. Can we chop the 4270 (displayable) text so that we don't need to do this ever? 4271 */ 4272 4273 int extendedPaddingTop = getExtendedPaddingTop(); 4274 int extendedPaddingBottom = getExtendedPaddingBottom(); 4275 4276 float clipLeft = compoundPaddingLeft + scrollX; 4277 float clipTop = extendedPaddingTop + scrollY; 4278 float clipRight = right - left - compoundPaddingRight + scrollX; 4279 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 4280 4281 if (mShadowRadius != 0) { 4282 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4283 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4284 4285 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4286 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4287 } 4288 4289 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4290 4291 int voffsetText = 0; 4292 int voffsetCursor = 0; 4293 4294 // translate in by our padding 4295 { 4296 /* shortcircuit calling getVerticaOffset() */ 4297 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4298 voffsetText = getVerticalOffset(false); 4299 voffsetCursor = getVerticalOffset(true); 4300 } 4301 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4302 } 4303 4304 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4305 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4306 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4307 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4308 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4309 } 4310 4311 if (mMarquee != null && mMarquee.isRunning()) { 4312 canvas.translate(-mMarquee.mScroll, 0.0f); 4313 } 4314 } 4315 4316 Path highlight = null; 4317 int selStart = -1, selEnd = -1; 4318 4319 // If there is no movement method, then there can be no selection. 4320 // Check that first and attempt to skip everything having to do with 4321 // the cursor. 4322 // XXX This is not strictly true -- a program could set the 4323 // selection manually if it really wanted to. 4324 if (mMovement != null && (isFocused() || isPressed())) { 4325 selStart = getSelectionStart(); 4326 selEnd = getSelectionEnd(); 4327 4328 if ((mCursorVisible || mTextIsSelectable) && selStart >= 0 && isEnabled()) { 4329 if (mHighlightPath == null) 4330 mHighlightPath = new Path(); 4331 4332 if (selStart == selEnd) { 4333 if (!mTextIsSelectable && 4334 (SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 4335 if (mHighlightPathBogus) { 4336 mHighlightPath.reset(); 4337 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4338 mHighlightPathBogus = false; 4339 } 4340 4341 // XXX should pass to skin instead of drawing directly 4342 mHighlightPaint.setColor(cursorcolor); 4343 if (mCurrentAlpha != 255) { 4344 mHighlightPaint.setAlpha( 4345 (mCurrentAlpha * Color.alpha(cursorcolor)) / 255); 4346 } 4347 mHighlightPaint.setStyle(Paint.Style.STROKE); 4348 4349 highlight = mHighlightPath; 4350 } 4351 } else { 4352 if (mHighlightPathBogus) { 4353 mHighlightPath.reset(); 4354 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4355 mHighlightPathBogus = false; 4356 } 4357 4358 // XXX should pass to skin instead of drawing directly 4359 mHighlightPaint.setColor(mHighlightColor); 4360 if (mCurrentAlpha != 255) { 4361 mHighlightPaint.setAlpha( 4362 (mCurrentAlpha * Color.alpha(mHighlightColor)) / 255); 4363 } 4364 mHighlightPaint.setStyle(Paint.Style.FILL); 4365 4366 highlight = mHighlightPath; 4367 } 4368 } 4369 } 4370 4371 /* Comment out until we decide what to do about animations 4372 boolean isLinearTextOn = false; 4373 if (currentTransformation != null) { 4374 isLinearTextOn = mTextPaint.isLinearTextOn(); 4375 Matrix m = currentTransformation.getMatrix(); 4376 if (!m.isIdentity()) { 4377 // mTextPaint.setLinearTextOn(true); 4378 } 4379 } 4380 */ 4381 4382 final InputMethodState ims = mInputMethodState; 4383 final int cursorOffsetVertical = voffsetCursor - voffsetText; 4384 if (ims != null && ims.mBatchEditNesting == 0) { 4385 InputMethodManager imm = InputMethodManager.peekInstance(); 4386 if (imm != null) { 4387 if (imm.isActive(this)) { 4388 boolean reported = false; 4389 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4390 // We are in extract mode and the content has changed 4391 // in some way... just report complete new text to the 4392 // input method. 4393 reported = reportExtractedText(); 4394 } 4395 if (!reported && highlight != null) { 4396 int candStart = -1; 4397 int candEnd = -1; 4398 if (mText instanceof Spannable) { 4399 Spannable sp = (Spannable)mText; 4400 candStart = EditableInputConnection.getComposingSpanStart(sp); 4401 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 4402 } 4403 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 4404 } 4405 } 4406 4407 if (imm.isWatchingCursor(this) && highlight != null) { 4408 highlight.computeBounds(ims.mTmpRectF, true); 4409 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 4410 4411 canvas.getMatrix().mapPoints(ims.mTmpOffset); 4412 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 4413 4414 ims.mTmpRectF.offset(0, cursorOffsetVertical); 4415 4416 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 4417 (int)(ims.mTmpRectF.top + 0.5), 4418 (int)(ims.mTmpRectF.right + 0.5), 4419 (int)(ims.mTmpRectF.bottom + 0.5)); 4420 4421 imm.updateCursor(this, 4422 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 4423 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 4424 } 4425 } 4426 } 4427 4428 if (mCorrectionHighlighter != null) { 4429 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 4430 } 4431 4432 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4433 4434 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 4435 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 4436 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4437 } 4438 4439 /* Comment out until we decide what to do about animations 4440 if (currentTransformation != null) { 4441 mTextPaint.setLinearTextOn(isLinearTextOn); 4442 } 4443 */ 4444 4445 canvas.restore(); 4446 4447 updateCursorControllerPositions(); 4448 } 4449 4450 /** 4451 * Update the positions of the CursorControllers. Needed by WebTextView, 4452 * which does not draw. 4453 * @hide 4454 */ 4455 protected void updateCursorControllerPositions() { 4456 // No need to create the controllers if they were not already 4457 if (mInsertionPointCursorController != null && 4458 mInsertionPointCursorController.isShowing()) { 4459 mInsertionPointCursorController.updatePosition(); 4460 } 4461 if (mSelectionModifierCursorController != null && 4462 mSelectionModifierCursorController.isShowing()) { 4463 mSelectionModifierCursorController.updatePosition(); 4464 } 4465 } 4466 4467 @Override 4468 public void getFocusedRect(Rect r) { 4469 if (mLayout == null) { 4470 super.getFocusedRect(r); 4471 return; 4472 } 4473 4474 int sel = getSelectionEnd(); 4475 if (sel < 0) { 4476 super.getFocusedRect(r); 4477 return; 4478 } 4479 4480 int line = mLayout.getLineForOffset(sel); 4481 r.top = mLayout.getLineTop(line); 4482 r.bottom = mLayout.getLineBottom(line); 4483 4484 r.left = (int) mLayout.getPrimaryHorizontal(sel); 4485 r.right = r.left + 1; 4486 4487 // Adjust for padding and gravity. 4488 int paddingLeft = getCompoundPaddingLeft(); 4489 int paddingTop = getExtendedPaddingTop(); 4490 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4491 paddingTop += getVerticalOffset(false); 4492 } 4493 r.offset(paddingLeft, paddingTop); 4494 } 4495 4496 /** 4497 * Return the number of lines of text, or 0 if the internal Layout has not 4498 * been built. 4499 */ 4500 public int getLineCount() { 4501 return mLayout != null ? mLayout.getLineCount() : 0; 4502 } 4503 4504 /** 4505 * Return the baseline for the specified line (0...getLineCount() - 1) 4506 * If bounds is not null, return the top, left, right, bottom extents 4507 * of the specified line in it. If the internal Layout has not been built, 4508 * return 0 and set bounds to (0, 0, 0, 0) 4509 * @param line which line to examine (0..getLineCount() - 1) 4510 * @param bounds Optional. If not null, it returns the extent of the line 4511 * @return the Y-coordinate of the baseline 4512 */ 4513 public int getLineBounds(int line, Rect bounds) { 4514 if (mLayout == null) { 4515 if (bounds != null) { 4516 bounds.set(0, 0, 0, 0); 4517 } 4518 return 0; 4519 } 4520 else { 4521 int baseline = mLayout.getLineBounds(line, bounds); 4522 4523 int voffset = getExtendedPaddingTop(); 4524 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4525 voffset += getVerticalOffset(true); 4526 } 4527 if (bounds != null) { 4528 bounds.offset(getCompoundPaddingLeft(), voffset); 4529 } 4530 return baseline + voffset; 4531 } 4532 } 4533 4534 @Override 4535 public int getBaseline() { 4536 if (mLayout == null) { 4537 return super.getBaseline(); 4538 } 4539 4540 int voffset = 0; 4541 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4542 voffset = getVerticalOffset(true); 4543 } 4544 4545 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 4546 } 4547 4548 @Override 4549 public boolean onKeyDown(int keyCode, KeyEvent event) { 4550 int which = doKeyDown(keyCode, event, null); 4551 if (which == 0) { 4552 // Go through default dispatching. 4553 return super.onKeyDown(keyCode, event); 4554 } 4555 4556 return true; 4557 } 4558 4559 @Override 4560 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 4561 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 4562 4563 int which = doKeyDown(keyCode, down, event); 4564 if (which == 0) { 4565 // Go through default dispatching. 4566 return super.onKeyMultiple(keyCode, repeatCount, event); 4567 } 4568 if (which == -1) { 4569 // Consumed the whole thing. 4570 return true; 4571 } 4572 4573 repeatCount--; 4574 4575 // We are going to dispatch the remaining events to either the input 4576 // or movement method. To do this, we will just send a repeated stream 4577 // of down and up events until we have done the complete repeatCount. 4578 // It would be nice if those interfaces had an onKeyMultiple() method, 4579 // but adding that is a more complicated change. 4580 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 4581 if (which == 1) { 4582 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4583 while (--repeatCount > 0) { 4584 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 4585 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4586 } 4587 if (mError != null && !mErrorWasChanged) { 4588 setError(null, null); 4589 } 4590 4591 } else if (which == 2) { 4592 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4593 while (--repeatCount > 0) { 4594 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 4595 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4596 } 4597 } 4598 4599 return true; 4600 } 4601 4602 /** 4603 * Returns true if pressing ENTER in this field advances focus instead 4604 * of inserting the character. This is true mostly in single-line fields, 4605 * but also in mail addresses and subjects which will display on multiple 4606 * lines but where it doesn't make sense to insert newlines. 4607 */ 4608 private boolean shouldAdvanceFocusOnEnter() { 4609 if (mInput == null) { 4610 return false; 4611 } 4612 4613 if (mSingleLine) { 4614 return true; 4615 } 4616 4617 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4618 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4619 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 4620 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 4621 return true; 4622 } 4623 } 4624 4625 return false; 4626 } 4627 4628 /** 4629 * Returns true if pressing TAB in this field advances focus instead 4630 * of inserting the character. Insert tabs only in multi-line editors. 4631 */ 4632 private boolean shouldAdvanceFocusOnTab() { 4633 if (mInput != null && !mSingleLine) { 4634 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4635 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4636 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 4637 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 4638 return false; 4639 } 4640 } 4641 } 4642 return true; 4643 } 4644 4645 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 4646 if (!isEnabled()) { 4647 return 0; 4648 } 4649 4650 switch (keyCode) { 4651 case KeyEvent.KEYCODE_ENTER: 4652 mEnterKeyIsDown = true; 4653 if (event.hasNoModifiers()) { 4654 // When mInputContentType is set, we know that we are 4655 // running in a "modern" cupcake environment, so don't need 4656 // to worry about the application trying to capture 4657 // enter key events. 4658 if (mInputContentType != null) { 4659 // If there is an action listener, given them a 4660 // chance to consume the event. 4661 if (mInputContentType.onEditorActionListener != null && 4662 mInputContentType.onEditorActionListener.onEditorAction( 4663 this, EditorInfo.IME_NULL, event)) { 4664 mInputContentType.enterDown = true; 4665 // We are consuming the enter key for them. 4666 return -1; 4667 } 4668 } 4669 4670 // If our editor should move focus when enter is pressed, or 4671 // this is a generated event from an IME action button, then 4672 // don't let it be inserted into the text. 4673 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 4674 || shouldAdvanceFocusOnEnter()) { 4675 if (mOnClickListener != null) { 4676 return 0; 4677 } 4678 return -1; 4679 } 4680 } 4681 break; 4682 4683 case KeyEvent.KEYCODE_DPAD_CENTER: 4684 mDPadCenterIsDown = true; 4685 if (event.hasNoModifiers()) { 4686 if (shouldAdvanceFocusOnEnter()) { 4687 return 0; 4688 } 4689 } 4690 break; 4691 4692 case KeyEvent.KEYCODE_TAB: 4693 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 4694 if (shouldAdvanceFocusOnTab()) { 4695 return 0; 4696 } 4697 } 4698 break; 4699 4700 // Has to be done on key down (and not on key up) to correctly be intercepted. 4701 case KeyEvent.KEYCODE_BACK: 4702 if (mSelectionActionMode != null) { 4703 stopSelectionActionMode(); 4704 return -1; 4705 } 4706 break; 4707 } 4708 4709 if (mInput != null) { 4710 /* 4711 * Keep track of what the error was before doing the input 4712 * so that if an input filter changed the error, we leave 4713 * that error showing. Otherwise, we take down whatever 4714 * error was showing when the user types something. 4715 */ 4716 mErrorWasChanged = false; 4717 4718 boolean doDown = true; 4719 if (otherEvent != null) { 4720 try { 4721 beginBatchEdit(); 4722 boolean handled = mInput.onKeyOther(this, (Editable) mText, 4723 otherEvent); 4724 if (mError != null && !mErrorWasChanged) { 4725 setError(null, null); 4726 } 4727 doDown = false; 4728 if (handled) { 4729 return -1; 4730 } 4731 } catch (AbstractMethodError e) { 4732 // onKeyOther was added after 1.0, so if it isn't 4733 // implemented we need to try to dispatch as a regular down. 4734 } finally { 4735 endBatchEdit(); 4736 } 4737 } 4738 4739 if (doDown) { 4740 beginBatchEdit(); 4741 if (mInput.onKeyDown(this, (Editable) mText, keyCode, event)) { 4742 endBatchEdit(); 4743 if (mError != null && !mErrorWasChanged) { 4744 setError(null, null); 4745 } 4746 return 1; 4747 } 4748 endBatchEdit(); 4749 } 4750 } 4751 4752 // bug 650865: sometimes we get a key event before a layout. 4753 // don't try to move around if we don't know the layout. 4754 4755 if (mMovement != null && mLayout != null) { 4756 boolean doDown = true; 4757 if (otherEvent != null) { 4758 try { 4759 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 4760 otherEvent); 4761 doDown = false; 4762 if (handled) { 4763 return -1; 4764 } 4765 } catch (AbstractMethodError e) { 4766 // onKeyOther was added after 1.0, so if it isn't 4767 // implemented we need to try to dispatch as a regular down. 4768 } 4769 } 4770 if (doDown) { 4771 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 4772 return 2; 4773 } 4774 } 4775 4776 return 0; 4777 } 4778 4779 @Override 4780 public boolean onKeyUp(int keyCode, KeyEvent event) { 4781 if (!isEnabled()) { 4782 return super.onKeyUp(keyCode, event); 4783 } 4784 4785 hideControllers(); 4786 4787 switch (keyCode) { 4788 case KeyEvent.KEYCODE_DPAD_CENTER: 4789 mDPadCenterIsDown = false; 4790 if (event.hasNoModifiers()) { 4791 /* 4792 * If there is a click listener, just call through to 4793 * super, which will invoke it. 4794 * 4795 * If there isn't a click listener, try to show the soft 4796 * input method. (It will also 4797 * call performClick(), but that won't do anything in 4798 * this case.) 4799 */ 4800 if (mOnClickListener == null) { 4801 if (mMovement != null && mText instanceof Editable 4802 && mLayout != null && onCheckIsTextEditor()) { 4803 InputMethodManager imm = (InputMethodManager) 4804 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 4805 imm.showSoftInput(this, 0); 4806 } 4807 } 4808 } 4809 return super.onKeyUp(keyCode, event); 4810 4811 case KeyEvent.KEYCODE_ENTER: 4812 mEnterKeyIsDown = false; 4813 if (event.hasNoModifiers()) { 4814 if (mInputContentType != null 4815 && mInputContentType.onEditorActionListener != null 4816 && mInputContentType.enterDown) { 4817 mInputContentType.enterDown = false; 4818 if (mInputContentType.onEditorActionListener.onEditorAction( 4819 this, EditorInfo.IME_NULL, event)) { 4820 return true; 4821 } 4822 } 4823 4824 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 4825 || shouldAdvanceFocusOnEnter()) { 4826 /* 4827 * If there is a click listener, just call through to 4828 * super, which will invoke it. 4829 * 4830 * If there isn't a click listener, try to advance focus, 4831 * but still call through to super, which will reset the 4832 * pressed state and longpress state. (It will also 4833 * call performClick(), but that won't do anything in 4834 * this case.) 4835 */ 4836 if (mOnClickListener == null) { 4837 View v = focusSearch(FOCUS_DOWN); 4838 4839 if (v != null) { 4840 if (!v.requestFocus(FOCUS_DOWN)) { 4841 throw new IllegalStateException( 4842 "focus search returned a view " + 4843 "that wasn't able to take focus!"); 4844 } 4845 4846 /* 4847 * Return true because we handled the key; super 4848 * will return false because there was no click 4849 * listener. 4850 */ 4851 super.onKeyUp(keyCode, event); 4852 return true; 4853 } else if ((event.getFlags() 4854 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 4855 // No target for next focus, but make sure the IME 4856 // if this came from it. 4857 InputMethodManager imm = InputMethodManager.peekInstance(); 4858 if (imm != null) { 4859 imm.hideSoftInputFromWindow(getWindowToken(), 0); 4860 } 4861 } 4862 } 4863 } 4864 return super.onKeyUp(keyCode, event); 4865 } 4866 break; 4867 } 4868 4869 if (mInput != null) 4870 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 4871 return true; 4872 4873 if (mMovement != null && mLayout != null) 4874 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 4875 return true; 4876 4877 return super.onKeyUp(keyCode, event); 4878 } 4879 4880 @Override public boolean onCheckIsTextEditor() { 4881 return mInputType != EditorInfo.TYPE_NULL; 4882 } 4883 4884 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4885 if (onCheckIsTextEditor() && isEnabled()) { 4886 if (mInputMethodState == null) { 4887 mInputMethodState = new InputMethodState(); 4888 } 4889 outAttrs.inputType = mInputType; 4890 if (mInputContentType != null) { 4891 outAttrs.imeOptions = mInputContentType.imeOptions; 4892 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 4893 outAttrs.actionLabel = mInputContentType.imeActionLabel; 4894 outAttrs.actionId = mInputContentType.imeActionId; 4895 outAttrs.extras = mInputContentType.extras; 4896 } else { 4897 outAttrs.imeOptions = EditorInfo.IME_NULL; 4898 } 4899 if (focusSearch(FOCUS_DOWN) != null) { 4900 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 4901 } 4902 if (focusSearch(FOCUS_UP) != null) { 4903 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 4904 } 4905 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 4906 == EditorInfo.IME_ACTION_UNSPECIFIED) { 4907 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 4908 // An action has not been set, but the enter key will move to 4909 // the next focus, so set the action to that. 4910 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 4911 } else { 4912 // An action has not been set, and there is no focus to move 4913 // to, so let's just supply a "done" action. 4914 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 4915 } 4916 if (!shouldAdvanceFocusOnEnter()) { 4917 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 4918 } 4919 } 4920 if (isMultilineInputType(outAttrs.inputType)) { 4921 // Multi-line text editors should always show an enter key. 4922 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 4923 } 4924 outAttrs.hintText = mHint; 4925 if (mText instanceof Editable) { 4926 InputConnection ic = new EditableInputConnection(this); 4927 outAttrs.initialSelStart = getSelectionStart(); 4928 outAttrs.initialSelEnd = getSelectionEnd(); 4929 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 4930 return ic; 4931 } 4932 } 4933 return null; 4934 } 4935 4936 /** 4937 * If this TextView contains editable content, extract a portion of it 4938 * based on the information in <var>request</var> in to <var>outText</var>. 4939 * @return Returns true if the text was successfully extracted, else false. 4940 */ 4941 public boolean extractText(ExtractedTextRequest request, 4942 ExtractedText outText) { 4943 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 4944 EXTRACT_UNKNOWN, outText); 4945 } 4946 4947 static final int EXTRACT_NOTHING = -2; 4948 static final int EXTRACT_UNKNOWN = -1; 4949 4950 boolean extractTextInternal(ExtractedTextRequest request, 4951 int partialStartOffset, int partialEndOffset, int delta, 4952 ExtractedText outText) { 4953 final CharSequence content = mText; 4954 if (content != null) { 4955 if (partialStartOffset != EXTRACT_NOTHING) { 4956 final int N = content.length(); 4957 if (partialStartOffset < 0) { 4958 outText.partialStartOffset = outText.partialEndOffset = -1; 4959 partialStartOffset = 0; 4960 partialEndOffset = N; 4961 } else { 4962 // Now use the delta to determine the actual amount of text 4963 // we need. 4964 partialEndOffset += delta; 4965 // Adjust offsets to ensure we contain full spans. 4966 if (content instanceof Spanned) { 4967 Spanned spanned = (Spanned)content; 4968 Object[] spans = spanned.getSpans(partialStartOffset, 4969 partialEndOffset, ParcelableSpan.class); 4970 int i = spans.length; 4971 while (i > 0) { 4972 i--; 4973 int j = spanned.getSpanStart(spans[i]); 4974 if (j < partialStartOffset) partialStartOffset = j; 4975 j = spanned.getSpanEnd(spans[i]); 4976 if (j > partialEndOffset) partialEndOffset = j; 4977 } 4978 } 4979 outText.partialStartOffset = partialStartOffset; 4980 outText.partialEndOffset = partialEndOffset - delta; 4981 4982 if (partialStartOffset > N) { 4983 partialStartOffset = N; 4984 } else if (partialStartOffset < 0) { 4985 partialStartOffset = 0; 4986 } 4987 if (partialEndOffset > N) { 4988 partialEndOffset = N; 4989 } else if (partialEndOffset < 0) { 4990 partialEndOffset = 0; 4991 } 4992 } 4993 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 4994 outText.text = content.subSequence(partialStartOffset, 4995 partialEndOffset); 4996 } else { 4997 outText.text = TextUtils.substring(content, partialStartOffset, 4998 partialEndOffset); 4999 } 5000 } else { 5001 outText.partialStartOffset = 0; 5002 outText.partialEndOffset = 0; 5003 outText.text = ""; 5004 } 5005 outText.flags = 0; 5006 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 5007 outText.flags |= ExtractedText.FLAG_SELECTING; 5008 } 5009 if (mSingleLine) { 5010 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 5011 } 5012 outText.startOffset = 0; 5013 outText.selectionStart = getSelectionStart(); 5014 outText.selectionEnd = getSelectionEnd(); 5015 return true; 5016 } 5017 return false; 5018 } 5019 5020 boolean reportExtractedText() { 5021 final InputMethodState ims = mInputMethodState; 5022 if (ims != null) { 5023 final boolean contentChanged = ims.mContentChanged; 5024 if (contentChanged || ims.mSelectionModeChanged) { 5025 ims.mContentChanged = false; 5026 ims.mSelectionModeChanged = false; 5027 final ExtractedTextRequest req = mInputMethodState.mExtracting; 5028 if (req != null) { 5029 InputMethodManager imm = InputMethodManager.peekInstance(); 5030 if (imm != null) { 5031 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 5032 + ims.mChangedStart + " end=" + ims.mChangedEnd 5033 + " delta=" + ims.mChangedDelta); 5034 if (ims.mChangedStart < 0 && !contentChanged) { 5035 ims.mChangedStart = EXTRACT_NOTHING; 5036 } 5037 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 5038 ims.mChangedDelta, ims.mTmpExtracted)) { 5039 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 5040 + ims.mTmpExtracted.partialStartOffset 5041 + " end=" + ims.mTmpExtracted.partialEndOffset 5042 + ": " + ims.mTmpExtracted.text); 5043 imm.updateExtractedText(this, req.token, 5044 mInputMethodState.mTmpExtracted); 5045 ims.mChangedStart = EXTRACT_UNKNOWN; 5046 ims.mChangedEnd = EXTRACT_UNKNOWN; 5047 ims.mChangedDelta = 0; 5048 ims.mContentChanged = false; 5049 return true; 5050 } 5051 } 5052 } 5053 } 5054 } 5055 return false; 5056 } 5057 5058 /** 5059 * This is used to remove all style-impacting spans from text before new 5060 * extracted text is being replaced into it, so that we don't have any 5061 * lingering spans applied during the replace. 5062 */ 5063 static void removeParcelableSpans(Spannable spannable, int start, int end) { 5064 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 5065 int i = spans.length; 5066 while (i > 0) { 5067 i--; 5068 spannable.removeSpan(spans[i]); 5069 } 5070 } 5071 5072 /** 5073 * Apply to this text view the given extracted text, as previously 5074 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 5075 */ 5076 public void setExtractedText(ExtractedText text) { 5077 Editable content = getEditableText(); 5078 if (text.text != null) { 5079 if (content == null) { 5080 setText(text.text, TextView.BufferType.EDITABLE); 5081 } else if (text.partialStartOffset < 0) { 5082 removeParcelableSpans(content, 0, content.length()); 5083 content.replace(0, content.length(), text.text); 5084 } else { 5085 final int N = content.length(); 5086 int start = text.partialStartOffset; 5087 if (start > N) start = N; 5088 int end = text.partialEndOffset; 5089 if (end > N) end = N; 5090 removeParcelableSpans(content, start, end); 5091 content.replace(start, end, text.text); 5092 } 5093 } 5094 5095 // Now set the selection position... make sure it is in range, to 5096 // avoid crashes. If this is a partial update, it is possible that 5097 // the underlying text may have changed, causing us problems here. 5098 // Also we just don't want to trust clients to do the right thing. 5099 Spannable sp = (Spannable)getText(); 5100 final int N = sp.length(); 5101 int start = text.selectionStart; 5102 if (start < 0) start = 0; 5103 else if (start > N) start = N; 5104 int end = text.selectionEnd; 5105 if (end < 0) end = 0; 5106 else if (end > N) end = N; 5107 Selection.setSelection(sp, start, end); 5108 5109 // Finally, update the selection mode. 5110 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 5111 MetaKeyKeyListener.startSelecting(this, sp); 5112 } else { 5113 MetaKeyKeyListener.stopSelecting(this, sp); 5114 } 5115 } 5116 5117 /** 5118 * @hide 5119 */ 5120 public void setExtracting(ExtractedTextRequest req) { 5121 if (mInputMethodState != null) { 5122 mInputMethodState.mExtracting = req; 5123 } 5124 // This stops a possible text selection mode. Maybe not intended. 5125 hideControllers(); 5126 } 5127 5128 /** 5129 * Called by the framework in response to a text completion from 5130 * the current input method, provided by it calling 5131 * {@link InputConnection#commitCompletion 5132 * InputConnection.commitCompletion()}. The default implementation does 5133 * nothing; text views that are supporting auto-completion should override 5134 * this to do their desired behavior. 5135 * 5136 * @param text The auto complete text the user has selected. 5137 */ 5138 public void onCommitCompletion(CompletionInfo text) { 5139 } 5140 5141 /** 5142 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 5143 * a dictionnary) from the current input method, provided by it calling 5144 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 5145 * implementation flashes the background of the corrected word to provide feedback to the user. 5146 * 5147 * @param info The auto correct info about the text that was corrected. 5148 */ 5149 public void onCommitCorrection(CorrectionInfo info) { 5150 if (mCorrectionHighlighter == null) { 5151 mCorrectionHighlighter = new CorrectionHighlighter(); 5152 } else { 5153 mCorrectionHighlighter.invalidate(false); 5154 } 5155 5156 mCorrectionHighlighter.highlight(info); 5157 } 5158 5159 private class CorrectionHighlighter { 5160 private final Path mPath = new Path(); 5161 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 5162 private int mStart, mEnd; 5163 private long mFadingStartTime; 5164 private final static int FADE_OUT_DURATION = 400; 5165 5166 public CorrectionHighlighter() { 5167 mPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale); 5168 mPaint.setStyle(Paint.Style.FILL); 5169 } 5170 5171 public void highlight(CorrectionInfo info) { 5172 mStart = info.getOffset(); 5173 mEnd = mStart + info.getNewText().length(); 5174 mFadingStartTime = SystemClock.uptimeMillis(); 5175 5176 if (mStart < 0 || mEnd < 0) { 5177 stopAnimation(); 5178 } 5179 } 5180 5181 public void draw(Canvas canvas, int cursorOffsetVertical) { 5182 if (updatePath() && updatePaint()) { 5183 if (cursorOffsetVertical != 0) { 5184 canvas.translate(0, cursorOffsetVertical); 5185 } 5186 5187 canvas.drawPath(mPath, mPaint); 5188 5189 if (cursorOffsetVertical != 0) { 5190 canvas.translate(0, -cursorOffsetVertical); 5191 } 5192 invalidate(true); 5193 } else { 5194 stopAnimation(); 5195 invalidate(false); 5196 } 5197 } 5198 5199 private boolean updatePaint() { 5200 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 5201 if (duration > FADE_OUT_DURATION) return false; 5202 5203 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 5204 final int highlightColorAlpha = Color.alpha(mHighlightColor); 5205 final int color = (mHighlightColor & 0x00FFFFFF) + 5206 ((int) (highlightColorAlpha * coef) << 24); 5207 mPaint.setColor(color); 5208 return true; 5209 } 5210 5211 private boolean updatePath() { 5212 final Layout layout = TextView.this.mLayout; 5213 if (layout == null) return false; 5214 5215 // Update in case text is edited while the animation is run 5216 final int length = mText.length(); 5217 int start = Math.min(length, mStart); 5218 int end = Math.min(length, mEnd); 5219 5220 mPath.reset(); 5221 TextView.this.mLayout.getSelectionPath(start, end, mPath); 5222 return true; 5223 } 5224 5225 private void invalidate(boolean delayed) { 5226 if (TextView.this.mLayout == null) return; 5227 5228 synchronized (sTempRect) { 5229 mPath.computeBounds(sTempRect, false); 5230 5231 int left = getCompoundPaddingLeft(); 5232 int top = getExtendedPaddingTop() + getVerticalOffset(true); 5233 5234 if (delayed) { 5235 TextView.this.postInvalidateDelayed(16, // 60 Hz update 5236 left + (int) sTempRect.left, top + (int) sTempRect.top, 5237 left + (int) sTempRect.right, top + (int) sTempRect.bottom); 5238 } else { 5239 TextView.this.postInvalidate((int) sTempRect.left, (int) sTempRect.top, 5240 (int) sTempRect.right, (int) sTempRect.bottom); 5241 } 5242 } 5243 } 5244 5245 private void stopAnimation() { 5246 TextView.this.mCorrectionHighlighter = null; 5247 } 5248 } 5249 5250 public void beginBatchEdit() { 5251 mInBatchEditControllers = true; 5252 final InputMethodState ims = mInputMethodState; 5253 if (ims != null) { 5254 int nesting = ++ims.mBatchEditNesting; 5255 if (nesting == 1) { 5256 ims.mCursorChanged = false; 5257 ims.mChangedDelta = 0; 5258 if (ims.mContentChanged) { 5259 // We already have a pending change from somewhere else, 5260 // so turn this into a full update. 5261 ims.mChangedStart = 0; 5262 ims.mChangedEnd = mText.length(); 5263 } else { 5264 ims.mChangedStart = EXTRACT_UNKNOWN; 5265 ims.mChangedEnd = EXTRACT_UNKNOWN; 5266 ims.mContentChanged = false; 5267 } 5268 onBeginBatchEdit(); 5269 } 5270 } 5271 } 5272 5273 public void endBatchEdit() { 5274 mInBatchEditControllers = false; 5275 final InputMethodState ims = mInputMethodState; 5276 if (ims != null) { 5277 int nesting = --ims.mBatchEditNesting; 5278 if (nesting == 0) { 5279 finishBatchEdit(ims); 5280 } 5281 } 5282 } 5283 5284 void ensureEndedBatchEdit() { 5285 final InputMethodState ims = mInputMethodState; 5286 if (ims != null && ims.mBatchEditNesting != 0) { 5287 ims.mBatchEditNesting = 0; 5288 finishBatchEdit(ims); 5289 } 5290 } 5291 5292 void finishBatchEdit(final InputMethodState ims) { 5293 onEndBatchEdit(); 5294 5295 if (ims.mContentChanged || ims.mSelectionModeChanged) { 5296 updateAfterEdit(); 5297 reportExtractedText(); 5298 } else if (ims.mCursorChanged) { 5299 // Cheezy way to get us to report the current cursor location. 5300 invalidateCursor(); 5301 } 5302 } 5303 5304 void updateAfterEdit() { 5305 invalidate(); 5306 int curs = getSelectionStart(); 5307 5308 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == 5309 Gravity.BOTTOM) { 5310 registerForPreDraw(); 5311 } 5312 5313 if (curs >= 0) { 5314 mHighlightPathBogus = true; 5315 5316 if (isFocused()) { 5317 mShowCursor = SystemClock.uptimeMillis(); 5318 makeBlink(); 5319 } 5320 } 5321 5322 checkForResize(); 5323 } 5324 5325 /** 5326 * Called by the framework in response to a request to begin a batch 5327 * of edit operations through a call to link {@link #beginBatchEdit()}. 5328 */ 5329 public void onBeginBatchEdit() { 5330 } 5331 5332 /** 5333 * Called by the framework in response to a request to end a batch 5334 * of edit operations through a call to link {@link #endBatchEdit}. 5335 */ 5336 public void onEndBatchEdit() { 5337 } 5338 5339 /** 5340 * Called by the framework in response to a private command from the 5341 * current method, provided by it calling 5342 * {@link InputConnection#performPrivateCommand 5343 * InputConnection.performPrivateCommand()}. 5344 * 5345 * @param action The action name of the command. 5346 * @param data Any additional data for the command. This may be null. 5347 * @return Return true if you handled the command, else false. 5348 */ 5349 public boolean onPrivateIMECommand(String action, Bundle data) { 5350 return false; 5351 } 5352 5353 private void nullLayouts() { 5354 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 5355 mSavedLayout = (BoringLayout) mLayout; 5356 } 5357 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 5358 mSavedHintLayout = (BoringLayout) mHintLayout; 5359 } 5360 5361 mLayout = mHintLayout = null; 5362 5363 // Since it depends on the value of mLayout 5364 prepareCursorControllers(); 5365 } 5366 5367 /** 5368 * Make a new Layout based on the already-measured size of the view, 5369 * on the assumption that it was measured correctly at some point. 5370 */ 5371 private void assumeLayout() { 5372 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5373 5374 if (width < 1) { 5375 width = 0; 5376 } 5377 5378 int physicalWidth = width; 5379 5380 if (mHorizontallyScrolling) { 5381 width = VERY_WIDE; 5382 } 5383 5384 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 5385 physicalWidth, false); 5386 } 5387 5388 /** 5389 * The width passed in is now the desired layout width, 5390 * not the full view width with padding. 5391 * {@hide} 5392 */ 5393 protected void makeNewLayout(int w, int hintWidth, 5394 BoringLayout.Metrics boring, 5395 BoringLayout.Metrics hintBoring, 5396 int ellipsisWidth, boolean bringIntoView) { 5397 stopMarquee(); 5398 5399 mHighlightPathBogus = true; 5400 5401 if (w < 0) { 5402 w = 0; 5403 } 5404 if (hintWidth < 0) { 5405 hintWidth = 0; 5406 } 5407 5408 Layout.Alignment alignment; 5409 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 5410 case Gravity.CENTER_HORIZONTAL: 5411 alignment = Layout.Alignment.ALIGN_CENTER; 5412 break; 5413 5414 case Gravity.RIGHT: 5415 // Note, Layout resolves ALIGN_OPPOSITE to left or 5416 // right based on the paragraph direction. 5417 alignment = Layout.Alignment.ALIGN_OPPOSITE; 5418 break; 5419 5420 default: 5421 alignment = Layout.Alignment.ALIGN_NORMAL; 5422 } 5423 5424 boolean shouldEllipsize = mEllipsize != null && mInput == null; 5425 5426 if (mText instanceof Spannable) { 5427 mLayout = new DynamicLayout(mText, mTransformed, mTextPaint, w, 5428 alignment, mSpacingMult, 5429 mSpacingAdd, mIncludePad, mInput == null ? mEllipsize : null, 5430 ellipsisWidth); 5431 } else { 5432 if (boring == UNKNOWN_BORING) { 5433 boring = BoringLayout.isBoring(mTransformed, mTextPaint, 5434 mBoring); 5435 if (boring != null) { 5436 mBoring = boring; 5437 } 5438 } 5439 5440 if (boring != null) { 5441 if (boring.width <= w && 5442 (mEllipsize == null || boring.width <= ellipsisWidth)) { 5443 if (mSavedLayout != null) { 5444 mLayout = mSavedLayout. 5445 replaceOrMake(mTransformed, mTextPaint, 5446 w, alignment, mSpacingMult, mSpacingAdd, 5447 boring, mIncludePad); 5448 } else { 5449 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5450 w, alignment, mSpacingMult, mSpacingAdd, 5451 boring, mIncludePad); 5452 } 5453 5454 mSavedLayout = (BoringLayout) mLayout; 5455 } else if (shouldEllipsize && boring.width <= w) { 5456 if (mSavedLayout != null) { 5457 mLayout = mSavedLayout. 5458 replaceOrMake(mTransformed, mTextPaint, 5459 w, alignment, mSpacingMult, mSpacingAdd, 5460 boring, mIncludePad, mEllipsize, 5461 ellipsisWidth); 5462 } else { 5463 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5464 w, alignment, mSpacingMult, mSpacingAdd, 5465 boring, mIncludePad, mEllipsize, 5466 ellipsisWidth); 5467 } 5468 } else if (shouldEllipsize) { 5469 mLayout = new StaticLayout(mTransformed, 5470 0, mTransformed.length(), 5471 mTextPaint, w, alignment, mSpacingMult, 5472 mSpacingAdd, mIncludePad, mEllipsize, 5473 ellipsisWidth); 5474 } else { 5475 mLayout = new StaticLayout(mTransformed, mTextPaint, 5476 w, alignment, mSpacingMult, mSpacingAdd, 5477 mIncludePad); 5478 } 5479 } else if (shouldEllipsize) { 5480 mLayout = new StaticLayout(mTransformed, 5481 0, mTransformed.length(), 5482 mTextPaint, w, alignment, mSpacingMult, 5483 mSpacingAdd, mIncludePad, mEllipsize, 5484 ellipsisWidth); 5485 } else { 5486 mLayout = new StaticLayout(mTransformed, mTextPaint, 5487 w, alignment, mSpacingMult, mSpacingAdd, 5488 mIncludePad); 5489 } 5490 } 5491 5492 shouldEllipsize = mEllipsize != null; 5493 mHintLayout = null; 5494 5495 if (mHint != null) { 5496 if (shouldEllipsize) hintWidth = w; 5497 5498 if (hintBoring == UNKNOWN_BORING) { 5499 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, 5500 mHintBoring); 5501 if (hintBoring != null) { 5502 mHintBoring = hintBoring; 5503 } 5504 } 5505 5506 if (hintBoring != null) { 5507 if (hintBoring.width <= hintWidth && 5508 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 5509 if (mSavedHintLayout != null) { 5510 mHintLayout = mSavedHintLayout. 5511 replaceOrMake(mHint, mTextPaint, 5512 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5513 hintBoring, mIncludePad); 5514 } else { 5515 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5516 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5517 hintBoring, mIncludePad); 5518 } 5519 5520 mSavedHintLayout = (BoringLayout) mHintLayout; 5521 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 5522 if (mSavedHintLayout != null) { 5523 mHintLayout = mSavedHintLayout. 5524 replaceOrMake(mHint, mTextPaint, 5525 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5526 hintBoring, mIncludePad, mEllipsize, 5527 ellipsisWidth); 5528 } else { 5529 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5530 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5531 hintBoring, mIncludePad, mEllipsize, 5532 ellipsisWidth); 5533 } 5534 } else if (shouldEllipsize) { 5535 mHintLayout = new StaticLayout(mHint, 5536 0, mHint.length(), 5537 mTextPaint, hintWidth, alignment, mSpacingMult, 5538 mSpacingAdd, mIncludePad, mEllipsize, 5539 ellipsisWidth); 5540 } else { 5541 mHintLayout = new StaticLayout(mHint, mTextPaint, 5542 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5543 mIncludePad); 5544 } 5545 } else if (shouldEllipsize) { 5546 mHintLayout = new StaticLayout(mHint, 5547 0, mHint.length(), 5548 mTextPaint, hintWidth, alignment, mSpacingMult, 5549 mSpacingAdd, mIncludePad, mEllipsize, 5550 ellipsisWidth); 5551 } else { 5552 mHintLayout = new StaticLayout(mHint, mTextPaint, 5553 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5554 mIncludePad); 5555 } 5556 } 5557 5558 if (bringIntoView) { 5559 registerForPreDraw(); 5560 } 5561 5562 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 5563 if (!compressText(ellipsisWidth)) { 5564 final int height = mLayoutParams.height; 5565 // If the size of the view does not depend on the size of the text, try to 5566 // start the marquee immediately 5567 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 5568 startMarquee(); 5569 } else { 5570 // Defer the start of the marquee until we know our width (see setFrame()) 5571 mRestartMarquee = true; 5572 } 5573 } 5574 } 5575 5576 // CursorControllers need a non-null mLayout 5577 prepareCursorControllers(); 5578 } 5579 5580 private boolean compressText(float width) { 5581 if (isHardwareAccelerated()) return false; 5582 5583 // Only compress the text if it hasn't been compressed by the previous pass 5584 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 5585 mTextPaint.getTextScaleX() == 1.0f) { 5586 final float textWidth = mLayout.getLineWidth(0); 5587 final float overflow = (textWidth + 1.0f - width) / width; 5588 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 5589 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 5590 post(new Runnable() { 5591 public void run() { 5592 requestLayout(); 5593 } 5594 }); 5595 return true; 5596 } 5597 } 5598 5599 return false; 5600 } 5601 5602 private static int desired(Layout layout) { 5603 int n = layout.getLineCount(); 5604 CharSequence text = layout.getText(); 5605 float max = 0; 5606 5607 // if any line was wrapped, we can't use it. 5608 // but it's ok for the last line not to have a newline 5609 5610 for (int i = 0; i < n - 1; i++) { 5611 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 5612 return -1; 5613 } 5614 5615 for (int i = 0; i < n; i++) { 5616 max = Math.max(max, layout.getLineWidth(i)); 5617 } 5618 5619 return (int) FloatMath.ceil(max); 5620 } 5621 5622 /** 5623 * Set whether the TextView includes extra top and bottom padding to make 5624 * room for accents that go above the normal ascent and descent. 5625 * The default is true. 5626 * 5627 * @attr ref android.R.styleable#TextView_includeFontPadding 5628 */ 5629 public void setIncludeFontPadding(boolean includepad) { 5630 mIncludePad = includepad; 5631 5632 if (mLayout != null) { 5633 nullLayouts(); 5634 requestLayout(); 5635 invalidate(); 5636 } 5637 } 5638 5639 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 5640 5641 @Override 5642 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 5643 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 5644 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 5645 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 5646 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 5647 5648 int width; 5649 int height; 5650 5651 BoringLayout.Metrics boring = UNKNOWN_BORING; 5652 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 5653 5654 int des = -1; 5655 boolean fromexisting = false; 5656 5657 if (widthMode == MeasureSpec.EXACTLY) { 5658 // Parent has told us how big to be. So be it. 5659 width = widthSize; 5660 } else { 5661 if (mLayout != null && mEllipsize == null) { 5662 des = desired(mLayout); 5663 } 5664 5665 if (des < 0) { 5666 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mBoring); 5667 if (boring != null) { 5668 mBoring = boring; 5669 } 5670 } else { 5671 fromexisting = true; 5672 } 5673 5674 if (boring == null || boring == UNKNOWN_BORING) { 5675 if (des < 0) { 5676 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 5677 } 5678 5679 width = des; 5680 } else { 5681 width = boring.width; 5682 } 5683 5684 final Drawables dr = mDrawables; 5685 if (dr != null) { 5686 width = Math.max(width, dr.mDrawableWidthTop); 5687 width = Math.max(width, dr.mDrawableWidthBottom); 5688 } 5689 5690 if (mHint != null) { 5691 int hintDes = -1; 5692 int hintWidth; 5693 5694 if (mHintLayout != null && mEllipsize == null) { 5695 hintDes = desired(mHintLayout); 5696 } 5697 5698 if (hintDes < 0) { 5699 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 5700 if (hintBoring != null) { 5701 mHintBoring = hintBoring; 5702 } 5703 } 5704 5705 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 5706 if (hintDes < 0) { 5707 hintDes = (int) FloatMath.ceil( 5708 Layout.getDesiredWidth(mHint, mTextPaint)); 5709 } 5710 5711 hintWidth = hintDes; 5712 } else { 5713 hintWidth = hintBoring.width; 5714 } 5715 5716 if (hintWidth > width) { 5717 width = hintWidth; 5718 } 5719 } 5720 5721 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 5722 5723 if (mMaxWidthMode == EMS) { 5724 width = Math.min(width, mMaxWidth * getLineHeight()); 5725 } else { 5726 width = Math.min(width, mMaxWidth); 5727 } 5728 5729 if (mMinWidthMode == EMS) { 5730 width = Math.max(width, mMinWidth * getLineHeight()); 5731 } else { 5732 width = Math.max(width, mMinWidth); 5733 } 5734 5735 // Check against our minimum width 5736 width = Math.max(width, getSuggestedMinimumWidth()); 5737 5738 if (widthMode == MeasureSpec.AT_MOST) { 5739 width = Math.min(widthSize, width); 5740 } 5741 } 5742 5743 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5744 int unpaddedWidth = want; 5745 int hintWant = want; 5746 5747 if (mHorizontallyScrolling) 5748 want = VERY_WIDE; 5749 5750 int hintWidth = mHintLayout == null ? hintWant : mHintLayout.getWidth(); 5751 5752 if (mLayout == null) { 5753 makeNewLayout(want, hintWant, boring, hintBoring, 5754 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5755 } else if ((mLayout.getWidth() != want) || (hintWidth != hintWant) || 5756 (mLayout.getEllipsizedWidth() != 5757 width - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 5758 if (mHint == null && mEllipsize == null && 5759 want > mLayout.getWidth() && 5760 (mLayout instanceof BoringLayout || 5761 (fromexisting && des >= 0 && des <= want))) { 5762 mLayout.increaseWidthTo(want); 5763 } else { 5764 makeNewLayout(want, hintWant, boring, hintBoring, 5765 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5766 } 5767 } else { 5768 // Width has not changed. 5769 } 5770 5771 if (heightMode == MeasureSpec.EXACTLY) { 5772 // Parent has told us how big to be. So be it. 5773 height = heightSize; 5774 mDesiredHeightAtMeasure = -1; 5775 } else { 5776 int desired = getDesiredHeight(); 5777 5778 height = desired; 5779 mDesiredHeightAtMeasure = desired; 5780 5781 if (heightMode == MeasureSpec.AT_MOST) { 5782 height = Math.min(desired, heightSize); 5783 } 5784 } 5785 5786 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 5787 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 5788 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 5789 } 5790 5791 /* 5792 * We didn't let makeNewLayout() register to bring the cursor into view, 5793 * so do it here if there is any possibility that it is needed. 5794 */ 5795 if (mMovement != null || 5796 mLayout.getWidth() > unpaddedWidth || 5797 mLayout.getHeight() > unpaddedHeight) { 5798 registerForPreDraw(); 5799 } else { 5800 scrollTo(0, 0); 5801 } 5802 5803 setMeasuredDimension(width, height); 5804 } 5805 5806 private int getDesiredHeight() { 5807 return Math.max( 5808 getDesiredHeight(mLayout, true), 5809 getDesiredHeight(mHintLayout, mEllipsize != null)); 5810 } 5811 5812 private int getDesiredHeight(Layout layout, boolean cap) { 5813 if (layout == null) { 5814 return 0; 5815 } 5816 5817 int linecount = layout.getLineCount(); 5818 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 5819 int desired = layout.getLineTop(linecount); 5820 5821 final Drawables dr = mDrawables; 5822 if (dr != null) { 5823 desired = Math.max(desired, dr.mDrawableHeightLeft); 5824 desired = Math.max(desired, dr.mDrawableHeightRight); 5825 } 5826 5827 desired += pad; 5828 5829 if (mMaxMode == LINES) { 5830 /* 5831 * Don't cap the hint to a certain number of lines. 5832 * (Do cap it, though, if we have a maximum pixel height.) 5833 */ 5834 if (cap) { 5835 if (linecount > mMaximum) { 5836 desired = layout.getLineTop(mMaximum) + 5837 layout.getBottomPadding(); 5838 5839 if (dr != null) { 5840 desired = Math.max(desired, dr.mDrawableHeightLeft); 5841 desired = Math.max(desired, dr.mDrawableHeightRight); 5842 } 5843 5844 desired += pad; 5845 linecount = mMaximum; 5846 } 5847 } 5848 } else { 5849 desired = Math.min(desired, mMaximum); 5850 } 5851 5852 if (mMinMode == LINES) { 5853 if (linecount < mMinimum) { 5854 desired += getLineHeight() * (mMinimum - linecount); 5855 } 5856 } else { 5857 desired = Math.max(desired, mMinimum); 5858 } 5859 5860 // Check against our minimum height 5861 desired = Math.max(desired, getSuggestedMinimumHeight()); 5862 5863 return desired; 5864 } 5865 5866 /** 5867 * Check whether a change to the existing text layout requires a 5868 * new view layout. 5869 */ 5870 private void checkForResize() { 5871 boolean sizeChanged = false; 5872 5873 if (mLayout != null) { 5874 // Check if our width changed 5875 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 5876 sizeChanged = true; 5877 invalidate(); 5878 } 5879 5880 // Check if our height changed 5881 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 5882 int desiredHeight = getDesiredHeight(); 5883 5884 if (desiredHeight != this.getHeight()) { 5885 sizeChanged = true; 5886 } 5887 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 5888 if (mDesiredHeightAtMeasure >= 0) { 5889 int desiredHeight = getDesiredHeight(); 5890 5891 if (desiredHeight != mDesiredHeightAtMeasure) { 5892 sizeChanged = true; 5893 } 5894 } 5895 } 5896 } 5897 5898 if (sizeChanged) { 5899 requestLayout(); 5900 // caller will have already invalidated 5901 } 5902 } 5903 5904 /** 5905 * Check whether entirely new text requires a new view layout 5906 * or merely a new text layout. 5907 */ 5908 private void checkForRelayout() { 5909 // If we have a fixed width, we can just swap in a new text layout 5910 // if the text height stays the same or if the view height is fixed. 5911 5912 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 5913 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 5914 (mHint == null || mHintLayout != null) && 5915 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 5916 // Static width, so try making a new text layout. 5917 5918 int oldht = mLayout.getHeight(); 5919 int want = mLayout.getWidth(); 5920 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 5921 5922 /* 5923 * No need to bring the text into view, since the size is not 5924 * changing (unless we do the requestLayout(), in which case it 5925 * will happen at measure). 5926 */ 5927 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 5928 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 5929 false); 5930 5931 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 5932 // In a fixed-height view, so use our new text layout. 5933 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 5934 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 5935 invalidate(); 5936 return; 5937 } 5938 5939 // Dynamic height, but height has stayed the same, 5940 // so use our new text layout. 5941 if (mLayout.getHeight() == oldht && 5942 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 5943 invalidate(); 5944 return; 5945 } 5946 } 5947 5948 // We lose: the height has changed and we have a dynamic height. 5949 // Request a new view layout using our new text layout. 5950 requestLayout(); 5951 invalidate(); 5952 } else { 5953 // Dynamic width, so we have no choice but to request a new 5954 // view layout with a new text layout. 5955 5956 nullLayouts(); 5957 requestLayout(); 5958 invalidate(); 5959 } 5960 } 5961 5962 /** 5963 * Returns true if anything changed. 5964 */ 5965 private boolean bringTextIntoView() { 5966 int line = 0; 5967 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5968 line = mLayout.getLineCount() - 1; 5969 } 5970 5971 Layout.Alignment a = mLayout.getParagraphAlignment(line); 5972 int dir = mLayout.getParagraphDirection(line); 5973 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5974 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 5975 int ht = mLayout.getHeight(); 5976 5977 int scrollx, scrolly; 5978 5979 if (a == Layout.Alignment.ALIGN_CENTER) { 5980 /* 5981 * Keep centered if possible, or, if it is too wide to fit, 5982 * keep leading edge in view. 5983 */ 5984 5985 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5986 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5987 5988 if (right - left < hspace) { 5989 scrollx = (right + left) / 2 - hspace / 2; 5990 } else { 5991 if (dir < 0) { 5992 scrollx = right - hspace; 5993 } else { 5994 scrollx = left; 5995 } 5996 } 5997 } else if (a == Layout.Alignment.ALIGN_NORMAL) { 5998 /* 5999 * Keep leading edge in view. 6000 */ 6001 6002 if (dir < 0) { 6003 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6004 scrollx = right - hspace; 6005 } else { 6006 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6007 } 6008 } else /* a == Layout.Alignment.ALIGN_OPPOSITE */ { 6009 /* 6010 * Keep trailing edge in view. 6011 */ 6012 6013 if (dir < 0) { 6014 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6015 } else { 6016 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6017 scrollx = right - hspace; 6018 } 6019 } 6020 6021 if (ht < vspace) { 6022 scrolly = 0; 6023 } else { 6024 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6025 scrolly = ht - vspace; 6026 } else { 6027 scrolly = 0; 6028 } 6029 } 6030 6031 if (scrollx != mScrollX || scrolly != mScrollY) { 6032 scrollTo(scrollx, scrolly); 6033 return true; 6034 } else { 6035 return false; 6036 } 6037 } 6038 6039 /** 6040 * Move the point, specified by the offset, into the view if it is needed. 6041 * This has to be called after layout. Returns true if anything changed. 6042 */ 6043 public boolean bringPointIntoView(int offset) { 6044 boolean changed = false; 6045 6046 int line = mLayout.getLineForOffset(offset); 6047 6048 // FIXME: Is it okay to truncate this, or should we round? 6049 final int x = (int)mLayout.getPrimaryHorizontal(offset); 6050 final int top = mLayout.getLineTop(line); 6051 final int bottom = mLayout.getLineTop(line + 1); 6052 6053 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6054 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6055 int ht = mLayout.getHeight(); 6056 6057 int grav; 6058 6059 switch (mLayout.getParagraphAlignment(line)) { 6060 case ALIGN_NORMAL: 6061 grav = 1; 6062 break; 6063 6064 case ALIGN_OPPOSITE: 6065 grav = -1; 6066 break; 6067 6068 default: 6069 grav = 0; 6070 } 6071 6072 grav *= mLayout.getParagraphDirection(line); 6073 6074 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6075 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6076 6077 int hslack = (bottom - top) / 2; 6078 int vslack = hslack; 6079 6080 if (vslack > vspace / 4) 6081 vslack = vspace / 4; 6082 if (hslack > hspace / 4) 6083 hslack = hspace / 4; 6084 6085 int hs = mScrollX; 6086 int vs = mScrollY; 6087 6088 if (top - vs < vslack) 6089 vs = top - vslack; 6090 if (bottom - vs > vspace - vslack) 6091 vs = bottom - (vspace - vslack); 6092 if (ht - vs < vspace) 6093 vs = ht - vspace; 6094 if (0 - vs > 0) 6095 vs = 0; 6096 6097 if (grav != 0) { 6098 if (x - hs < hslack) { 6099 hs = x - hslack; 6100 } 6101 if (x - hs > hspace - hslack) { 6102 hs = x - (hspace - hslack); 6103 } 6104 } 6105 6106 if (grav < 0) { 6107 if (left - hs > 0) 6108 hs = left; 6109 if (right - hs < hspace) 6110 hs = right - hspace; 6111 } else if (grav > 0) { 6112 if (right - hs < hspace) 6113 hs = right - hspace; 6114 if (left - hs > 0) 6115 hs = left; 6116 } else /* grav == 0 */ { 6117 if (right - left <= hspace) { 6118 /* 6119 * If the entire text fits, center it exactly. 6120 */ 6121 hs = left - (hspace - (right - left)) / 2; 6122 } else if (x > right - hslack) { 6123 /* 6124 * If we are near the right edge, keep the right edge 6125 * at the edge of the view. 6126 */ 6127 hs = right - hspace; 6128 } else if (x < left + hslack) { 6129 /* 6130 * If we are near the left edge, keep the left edge 6131 * at the edge of the view. 6132 */ 6133 hs = left; 6134 } else if (left > hs) { 6135 /* 6136 * Is there whitespace visible at the left? Fix it if so. 6137 */ 6138 hs = left; 6139 } else if (right < hs + hspace) { 6140 /* 6141 * Is there whitespace visible at the right? Fix it if so. 6142 */ 6143 hs = right - hspace; 6144 } else { 6145 /* 6146 * Otherwise, float as needed. 6147 */ 6148 if (x - hs < hslack) { 6149 hs = x - hslack; 6150 } 6151 if (x - hs > hspace - hslack) { 6152 hs = x - (hspace - hslack); 6153 } 6154 } 6155 } 6156 6157 if (hs != mScrollX || vs != mScrollY) { 6158 if (mScroller == null) { 6159 scrollTo(hs, vs); 6160 } else { 6161 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 6162 int dx = hs - mScrollX; 6163 int dy = vs - mScrollY; 6164 6165 if (duration > ANIMATED_SCROLL_GAP) { 6166 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 6167 awakenScrollBars(mScroller.getDuration()); 6168 invalidate(); 6169 } else { 6170 if (!mScroller.isFinished()) { 6171 mScroller.abortAnimation(); 6172 } 6173 6174 scrollBy(dx, dy); 6175 } 6176 6177 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 6178 } 6179 6180 changed = true; 6181 } 6182 6183 if (isFocused()) { 6184 // This offsets because getInterestingRect() is in terms of 6185 // viewport coordinates, but requestRectangleOnScreen() 6186 // is in terms of content coordinates. 6187 6188 Rect r = new Rect(x, top, x + 1, bottom); 6189 getInterestingRect(r, line); 6190 r.offset(mScrollX, mScrollY); 6191 6192 if (requestRectangleOnScreen(r)) { 6193 changed = true; 6194 } 6195 } 6196 6197 return changed; 6198 } 6199 6200 /** 6201 * Move the cursor, if needed, so that it is at an offset that is visible 6202 * to the user. This will not move the cursor if it represents more than 6203 * one character (a selection range). This will only work if the 6204 * TextView contains spannable text; otherwise it will do nothing. 6205 * 6206 * @return True if the cursor was actually moved, false otherwise. 6207 */ 6208 public boolean moveCursorToVisibleOffset() { 6209 if (!(mText instanceof Spannable)) { 6210 return false; 6211 } 6212 int start = getSelectionStart(); 6213 int end = getSelectionEnd(); 6214 if (start != end) { 6215 return false; 6216 } 6217 6218 // First: make sure the line is visible on screen: 6219 6220 int line = mLayout.getLineForOffset(start); 6221 6222 final int top = mLayout.getLineTop(line); 6223 final int bottom = mLayout.getLineTop(line + 1); 6224 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6225 int vslack = (bottom - top) / 2; 6226 if (vslack > vspace / 4) 6227 vslack = vspace / 4; 6228 final int vs = mScrollY; 6229 6230 if (top < (vs+vslack)) { 6231 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 6232 } else if (bottom > (vspace+vs-vslack)) { 6233 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 6234 } 6235 6236 // Next: make sure the character is visible on screen: 6237 6238 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6239 final int hs = mScrollX; 6240 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 6241 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 6242 6243 // line might contain bidirectional text 6244 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 6245 final int highChar = leftChar > rightChar ? leftChar : rightChar; 6246 6247 int newStart = start; 6248 if (newStart < lowChar) { 6249 newStart = lowChar; 6250 } else if (newStart > highChar) { 6251 newStart = highChar; 6252 } 6253 6254 if (newStart != start) { 6255 Selection.setSelection((Spannable)mText, newStart); 6256 return true; 6257 } 6258 6259 return false; 6260 } 6261 6262 @Override 6263 public void computeScroll() { 6264 if (mScroller != null) { 6265 if (mScroller.computeScrollOffset()) { 6266 mScrollX = mScroller.getCurrX(); 6267 mScrollY = mScroller.getCurrY(); 6268 postInvalidate(); // So we draw again 6269 } 6270 } 6271 } 6272 6273 private void getInterestingRect(Rect r, int line) { 6274 convertFromViewportToContentCoordinates(r); 6275 6276 // Rectangle can can be expanded on first and last line to take 6277 // padding into account. 6278 // TODO Take left/right padding into account too? 6279 if (line == 0) r.top -= getExtendedPaddingTop(); 6280 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 6281 } 6282 6283 private void convertFromViewportToContentCoordinates(Rect r) { 6284 final int horizontalOffset = viewportToContentHorizontalOffset(); 6285 r.left += horizontalOffset; 6286 r.right += horizontalOffset; 6287 6288 final int verticalOffset = viewportToContentVerticalOffset(); 6289 r.top += verticalOffset; 6290 r.bottom += verticalOffset; 6291 } 6292 6293 private int viewportToContentHorizontalOffset() { 6294 return getCompoundPaddingLeft() - mScrollX; 6295 } 6296 6297 private int viewportToContentVerticalOffset() { 6298 int offset = getExtendedPaddingTop() - mScrollY; 6299 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 6300 offset += getVerticalOffset(false); 6301 } 6302 return offset; 6303 } 6304 6305 @Override 6306 public void debug(int depth) { 6307 super.debug(depth); 6308 6309 String output = debugIndent(depth); 6310 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 6311 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 6312 + "} "; 6313 6314 if (mText != null) { 6315 6316 output += "mText=\"" + mText + "\" "; 6317 if (mLayout != null) { 6318 output += "mLayout width=" + mLayout.getWidth() 6319 + " height=" + mLayout.getHeight(); 6320 } 6321 } else { 6322 output += "mText=NULL"; 6323 } 6324 Log.d(VIEW_LOG_TAG, output); 6325 } 6326 6327 /** 6328 * Convenience for {@link Selection#getSelectionStart}. 6329 */ 6330 @ViewDebug.ExportedProperty(category = "text") 6331 public int getSelectionStart() { 6332 return Selection.getSelectionStart(getText()); 6333 } 6334 6335 /** 6336 * Convenience for {@link Selection#getSelectionEnd}. 6337 */ 6338 @ViewDebug.ExportedProperty(category = "text") 6339 public int getSelectionEnd() { 6340 return Selection.getSelectionEnd(getText()); 6341 } 6342 6343 /** 6344 * Return true iff there is a selection inside this text view. 6345 */ 6346 public boolean hasSelection() { 6347 final int selectionStart = getSelectionStart(); 6348 final int selectionEnd = getSelectionEnd(); 6349 6350 return selectionStart >= 0 && selectionStart != selectionEnd; 6351 } 6352 6353 /** 6354 * Sets the properties of this field (lines, horizontally scrolling, 6355 * transformation method) to be for a single-line input. 6356 * 6357 * @attr ref android.R.styleable#TextView_singleLine 6358 */ 6359 public void setSingleLine() { 6360 setSingleLine(true); 6361 } 6362 6363 /** 6364 * If true, sets the properties of this field (number of lines, horizontally scrolling, 6365 * transformation method) to be for a single-line input; if false, restores these to the default 6366 * conditions. 6367 * 6368 * Note that the default conditions are not necessarily those that were in effect prior this 6369 * method, and you may want to reset these properties to your custom values. 6370 * 6371 * @attr ref android.R.styleable#TextView_singleLine 6372 */ 6373 @android.view.RemotableViewMethod 6374 public void setSingleLine(boolean singleLine) { 6375 // Could be used, but may break backward compatibility. 6376 // if (mSingleLine == singleLine) return; 6377 setInputTypeSingleLine(singleLine); 6378 applySingleLine(singleLine, true, true); 6379 } 6380 6381 /** 6382 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 6383 * @param singleLine 6384 */ 6385 private void setInputTypeSingleLine(boolean singleLine) { 6386 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 6387 if (singleLine) { 6388 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6389 } else { 6390 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6391 } 6392 } 6393 } 6394 6395 private void applySingleLine(boolean singleLine, boolean applyTransformation, 6396 boolean changeMaxLines) { 6397 mSingleLine = singleLine; 6398 if (singleLine) { 6399 setLines(1); 6400 setHorizontallyScrolling(true); 6401 if (applyTransformation) { 6402 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 6403 } 6404 // TODO setState 6405 } else { 6406 if (changeMaxLines) { 6407 setMaxLines(Integer.MAX_VALUE); 6408 } 6409 setHorizontallyScrolling(false); 6410 if (applyTransformation) { 6411 setTransformationMethod(null); 6412 } 6413 // TODO setState 6414 } 6415 } 6416 6417 /** 6418 * Causes words in the text that are longer than the view is wide 6419 * to be ellipsized instead of broken in the middle. You may also 6420 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 6421 * to constrain the text to a single line. Use <code>null</code> 6422 * to turn off ellipsizing. 6423 * 6424 * @attr ref android.R.styleable#TextView_ellipsize 6425 */ 6426 public void setEllipsize(TextUtils.TruncateAt where) { 6427 mEllipsize = where; 6428 6429 if (mLayout != null) { 6430 nullLayouts(); 6431 requestLayout(); 6432 invalidate(); 6433 } 6434 } 6435 6436 /** 6437 * Sets how many times to repeat the marquee animation. Only applied if the 6438 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 6439 * 6440 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 6441 */ 6442 public void setMarqueeRepeatLimit(int marqueeLimit) { 6443 mMarqueeRepeatLimit = marqueeLimit; 6444 } 6445 6446 /** 6447 * Returns where, if anywhere, words that are longer than the view 6448 * is wide should be ellipsized. 6449 */ 6450 @ViewDebug.ExportedProperty 6451 public TextUtils.TruncateAt getEllipsize() { 6452 return mEllipsize; 6453 } 6454 6455 /** 6456 * Set the TextView so that when it takes focus, all the text is 6457 * selected. 6458 * 6459 * @attr ref android.R.styleable#TextView_selectAllOnFocus 6460 */ 6461 @android.view.RemotableViewMethod 6462 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 6463 mSelectAllOnFocus = selectAllOnFocus; 6464 6465 if (selectAllOnFocus && !(mText instanceof Spannable)) { 6466 setText(mText, BufferType.SPANNABLE); 6467 } 6468 } 6469 6470 /** 6471 * Set whether the cursor is visible. The default is true. 6472 * 6473 * @attr ref android.R.styleable#TextView_cursorVisible 6474 */ 6475 @android.view.RemotableViewMethod 6476 public void setCursorVisible(boolean visible) { 6477 mCursorVisible = visible; 6478 invalidate(); 6479 6480 makeBlink(); 6481 6482 // InsertionPointCursorController depends on mCursorVisible 6483 prepareCursorControllers(); 6484 } 6485 6486 private boolean canMarquee() { 6487 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6488 return width > 0 && mLayout.getLineWidth(0) > width; 6489 } 6490 6491 private void startMarquee() { 6492 // Do not ellipsize EditText 6493 if (mInput != null) return; 6494 6495 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 6496 return; 6497 } 6498 6499 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 6500 getLineCount() == 1 && canMarquee()) { 6501 6502 if (mMarquee == null) mMarquee = new Marquee(this); 6503 mMarquee.start(mMarqueeRepeatLimit); 6504 } 6505 } 6506 6507 private void stopMarquee() { 6508 if (mMarquee != null && !mMarquee.isStopped()) { 6509 mMarquee.stop(); 6510 } 6511 } 6512 6513 private void startStopMarquee(boolean start) { 6514 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6515 if (start) { 6516 startMarquee(); 6517 } else { 6518 stopMarquee(); 6519 } 6520 } 6521 } 6522 6523 private static final class Marquee extends Handler { 6524 // TODO: Add an option to configure this 6525 private static final float MARQUEE_DELTA_MAX = 0.07f; 6526 private static final int MARQUEE_DELAY = 1200; 6527 private static final int MARQUEE_RESTART_DELAY = 1200; 6528 private static final int MARQUEE_RESOLUTION = 1000 / 30; 6529 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 6530 6531 private static final byte MARQUEE_STOPPED = 0x0; 6532 private static final byte MARQUEE_STARTING = 0x1; 6533 private static final byte MARQUEE_RUNNING = 0x2; 6534 6535 private static final int MESSAGE_START = 0x1; 6536 private static final int MESSAGE_TICK = 0x2; 6537 private static final int MESSAGE_RESTART = 0x3; 6538 6539 private final WeakReference<TextView> mView; 6540 6541 private byte mStatus = MARQUEE_STOPPED; 6542 private final float mScrollUnit; 6543 private float mMaxScroll; 6544 float mMaxFadeScroll; 6545 private float mGhostStart; 6546 private float mGhostOffset; 6547 private float mFadeStop; 6548 private int mRepeatLimit; 6549 6550 float mScroll; 6551 6552 Marquee(TextView v) { 6553 final float density = v.getContext().getResources().getDisplayMetrics().density; 6554 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 6555 mView = new WeakReference<TextView>(v); 6556 } 6557 6558 @Override 6559 public void handleMessage(Message msg) { 6560 switch (msg.what) { 6561 case MESSAGE_START: 6562 mStatus = MARQUEE_RUNNING; 6563 tick(); 6564 break; 6565 case MESSAGE_TICK: 6566 tick(); 6567 break; 6568 case MESSAGE_RESTART: 6569 if (mStatus == MARQUEE_RUNNING) { 6570 if (mRepeatLimit >= 0) { 6571 mRepeatLimit--; 6572 } 6573 start(mRepeatLimit); 6574 } 6575 break; 6576 } 6577 } 6578 6579 void tick() { 6580 if (mStatus != MARQUEE_RUNNING) { 6581 return; 6582 } 6583 6584 removeMessages(MESSAGE_TICK); 6585 6586 final TextView textView = mView.get(); 6587 if (textView != null && (textView.isFocused() || textView.isSelected())) { 6588 mScroll += mScrollUnit; 6589 if (mScroll > mMaxScroll) { 6590 mScroll = mMaxScroll; 6591 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 6592 } else { 6593 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 6594 } 6595 textView.invalidate(); 6596 } 6597 } 6598 6599 void stop() { 6600 mStatus = MARQUEE_STOPPED; 6601 removeMessages(MESSAGE_START); 6602 removeMessages(MESSAGE_RESTART); 6603 removeMessages(MESSAGE_TICK); 6604 resetScroll(); 6605 } 6606 6607 private void resetScroll() { 6608 mScroll = 0.0f; 6609 final TextView textView = mView.get(); 6610 if (textView != null) textView.invalidate(); 6611 } 6612 6613 void start(int repeatLimit) { 6614 if (repeatLimit == 0) { 6615 stop(); 6616 return; 6617 } 6618 mRepeatLimit = repeatLimit; 6619 final TextView textView = mView.get(); 6620 if (textView != null && textView.mLayout != null) { 6621 mStatus = MARQUEE_STARTING; 6622 mScroll = 0.0f; 6623 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 6624 textView.getCompoundPaddingRight(); 6625 final float lineWidth = textView.mLayout.getLineWidth(0); 6626 final float gap = textWidth / 3.0f; 6627 mGhostStart = lineWidth - textWidth + gap; 6628 mMaxScroll = mGhostStart + textWidth; 6629 mGhostOffset = lineWidth + gap; 6630 mFadeStop = lineWidth + textWidth / 6.0f; 6631 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 6632 6633 textView.invalidate(); 6634 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 6635 } 6636 } 6637 6638 float getGhostOffset() { 6639 return mGhostOffset; 6640 } 6641 6642 boolean shouldDrawLeftFade() { 6643 return mScroll <= mFadeStop; 6644 } 6645 6646 boolean shouldDrawGhost() { 6647 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 6648 } 6649 6650 boolean isRunning() { 6651 return mStatus == MARQUEE_RUNNING; 6652 } 6653 6654 boolean isStopped() { 6655 return mStatus == MARQUEE_STOPPED; 6656 } 6657 } 6658 6659 /** 6660 * This method is called when the text is changed, in case any 6661 * subclasses would like to know. 6662 * 6663 * @param text The text the TextView is displaying. 6664 * @param start The offset of the start of the range of the text 6665 * that was modified. 6666 * @param before The offset of the former end of the range of the 6667 * text that was modified. If text was simply inserted, 6668 * this will be the same as <code>start</code>. 6669 * If text was replaced with new text or deleted, the 6670 * length of the old text was <code>before-start</code>. 6671 * @param after The offset of the end of the range of the text 6672 * that was modified. If text was simply deleted, 6673 * this will be the same as <code>start</code>. 6674 * If text was replaced with new text or inserted, 6675 * the length of the new text is <code>after-start</code>. 6676 */ 6677 protected void onTextChanged(CharSequence text, 6678 int start, int before, int after) { 6679 } 6680 6681 /** 6682 * This method is called when the selection has changed, in case any 6683 * subclasses would like to know. 6684 * 6685 * @param selStart The new selection start location. 6686 * @param selEnd The new selection end location. 6687 */ 6688 protected void onSelectionChanged(int selStart, int selEnd) { 6689 } 6690 6691 /** 6692 * Adds a TextWatcher to the list of those whose methods are called 6693 * whenever this TextView's text changes. 6694 * <p> 6695 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 6696 * not called after {@link #setText} calls. Now, doing {@link #setText} 6697 * if there are any text changed listeners forces the buffer type to 6698 * Editable if it would not otherwise be and does call this method. 6699 */ 6700 public void addTextChangedListener(TextWatcher watcher) { 6701 if (mListeners == null) { 6702 mListeners = new ArrayList<TextWatcher>(); 6703 } 6704 6705 mListeners.add(watcher); 6706 } 6707 6708 /** 6709 * Removes the specified TextWatcher from the list of those whose 6710 * methods are called 6711 * whenever this TextView's text changes. 6712 */ 6713 public void removeTextChangedListener(TextWatcher watcher) { 6714 if (mListeners != null) { 6715 int i = mListeners.indexOf(watcher); 6716 6717 if (i >= 0) { 6718 mListeners.remove(i); 6719 } 6720 } 6721 } 6722 6723 private void sendBeforeTextChanged(CharSequence text, int start, int before, 6724 int after) { 6725 if (mListeners != null) { 6726 final ArrayList<TextWatcher> list = mListeners; 6727 final int count = list.size(); 6728 for (int i = 0; i < count; i++) { 6729 list.get(i).beforeTextChanged(text, start, before, after); 6730 } 6731 } 6732 } 6733 6734 /** 6735 * Not private so it can be called from an inner class without going 6736 * through a thunk. 6737 */ 6738 void sendOnTextChanged(CharSequence text, int start, int before, 6739 int after) { 6740 if (mListeners != null) { 6741 final ArrayList<TextWatcher> list = mListeners; 6742 final int count = list.size(); 6743 for (int i = 0; i < count; i++) { 6744 list.get(i).onTextChanged(text, start, before, after); 6745 } 6746 } 6747 } 6748 6749 /** 6750 * Not private so it can be called from an inner class without going 6751 * through a thunk. 6752 */ 6753 void sendAfterTextChanged(Editable text) { 6754 if (mListeners != null) { 6755 final ArrayList<TextWatcher> list = mListeners; 6756 final int count = list.size(); 6757 for (int i = 0; i < count; i++) { 6758 list.get(i).afterTextChanged(text); 6759 } 6760 } 6761 } 6762 6763 /** 6764 * Not private so it can be called from an inner class without going 6765 * through a thunk. 6766 */ 6767 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 6768 final InputMethodState ims = mInputMethodState; 6769 if (ims == null || ims.mBatchEditNesting == 0) { 6770 updateAfterEdit(); 6771 } 6772 if (ims != null) { 6773 ims.mContentChanged = true; 6774 if (ims.mChangedStart < 0) { 6775 ims.mChangedStart = start; 6776 ims.mChangedEnd = start+before; 6777 } else { 6778 ims.mChangedStart = Math.min(ims.mChangedStart, start); 6779 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 6780 } 6781 ims.mChangedDelta += after-before; 6782 } 6783 6784 sendOnTextChanged(buffer, start, before, after); 6785 onTextChanged(buffer, start, before, after); 6786 6787 // Hide the controllers if the amount of content changed 6788 if (before != after) { 6789 hideControllers(); 6790 } 6791 } 6792 6793 /** 6794 * Not private so it can be called from an inner class without going 6795 * through a thunk. 6796 */ 6797 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 6798 // XXX Make the start and end move together if this ends up 6799 // spending too much time invalidating. 6800 6801 boolean selChanged = false; 6802 int newSelStart=-1, newSelEnd=-1; 6803 6804 final InputMethodState ims = mInputMethodState; 6805 6806 if (what == Selection.SELECTION_END) { 6807 mHighlightPathBogus = true; 6808 selChanged = true; 6809 newSelEnd = newStart; 6810 6811 if (!isFocused()) { 6812 mSelectionMoved = true; 6813 } 6814 6815 if (oldStart >= 0 || newStart >= 0) { 6816 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 6817 registerForPreDraw(); 6818 6819 if (isFocused()) { 6820 mShowCursor = SystemClock.uptimeMillis(); 6821 makeBlink(); 6822 } 6823 } 6824 } 6825 6826 if (what == Selection.SELECTION_START) { 6827 mHighlightPathBogus = true; 6828 selChanged = true; 6829 newSelStart = newStart; 6830 6831 if (!isFocused()) { 6832 mSelectionMoved = true; 6833 } 6834 6835 if (oldStart >= 0 || newStart >= 0) { 6836 int end = Selection.getSelectionEnd(buf); 6837 invalidateCursor(end, oldStart, newStart); 6838 } 6839 } 6840 6841 if (selChanged) { 6842 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 6843 if (newSelStart < 0) { 6844 newSelStart = Selection.getSelectionStart(buf); 6845 } 6846 if (newSelEnd < 0) { 6847 newSelEnd = Selection.getSelectionEnd(buf); 6848 } 6849 onSelectionChanged(newSelStart, newSelEnd); 6850 } 6851 } 6852 6853 if (what instanceof UpdateAppearance || 6854 what instanceof ParagraphStyle) { 6855 if (ims == null || ims.mBatchEditNesting == 0) { 6856 invalidate(); 6857 mHighlightPathBogus = true; 6858 checkForResize(); 6859 } else { 6860 ims.mContentChanged = true; 6861 } 6862 } 6863 6864 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 6865 mHighlightPathBogus = true; 6866 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 6867 ims.mSelectionModeChanged = true; 6868 } 6869 6870 if (Selection.getSelectionStart(buf) >= 0) { 6871 if (ims == null || ims.mBatchEditNesting == 0) { 6872 invalidateCursor(); 6873 } else { 6874 ims.mCursorChanged = true; 6875 } 6876 } 6877 } 6878 6879 if (what instanceof ParcelableSpan) { 6880 // If this is a span that can be sent to a remote process, 6881 // the current extract editor would be interested in it. 6882 if (ims != null && ims.mExtracting != null) { 6883 if (ims.mBatchEditNesting != 0) { 6884 if (oldStart >= 0) { 6885 if (ims.mChangedStart > oldStart) { 6886 ims.mChangedStart = oldStart; 6887 } 6888 if (ims.mChangedStart > oldEnd) { 6889 ims.mChangedStart = oldEnd; 6890 } 6891 } 6892 if (newStart >= 0) { 6893 if (ims.mChangedStart > newStart) { 6894 ims.mChangedStart = newStart; 6895 } 6896 if (ims.mChangedStart > newEnd) { 6897 ims.mChangedStart = newEnd; 6898 } 6899 } 6900 } else { 6901 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 6902 + oldStart + "-" + oldEnd + "," 6903 + newStart + "-" + newEnd + what); 6904 ims.mContentChanged = true; 6905 } 6906 } 6907 } 6908 } 6909 6910 private class ChangeWatcher 6911 implements TextWatcher, SpanWatcher { 6912 6913 private CharSequence mBeforeText; 6914 6915 public void beforeTextChanged(CharSequence buffer, int start, 6916 int before, int after) { 6917 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 6918 + " before=" + before + " after=" + after + ": " + buffer); 6919 6920 if (AccessibilityManager.getInstance(mContext).isEnabled() 6921 && !isPasswordInputType(mInputType) 6922 && !hasPasswordTransformationMethod()) { 6923 mBeforeText = buffer.toString(); 6924 } 6925 6926 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 6927 } 6928 6929 public void onTextChanged(CharSequence buffer, int start, 6930 int before, int after) { 6931 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 6932 + " before=" + before + " after=" + after + ": " + buffer); 6933 TextView.this.handleTextChanged(buffer, start, before, after); 6934 6935 if (AccessibilityManager.getInstance(mContext).isEnabled() && 6936 (isFocused() || isSelected() && 6937 isShown())) { 6938 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 6939 mBeforeText = null; 6940 } 6941 } 6942 6943 public void afterTextChanged(Editable buffer) { 6944 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 6945 TextView.this.sendAfterTextChanged(buffer); 6946 6947 if (MetaKeyKeyListener.getMetaState(buffer, 6948 MetaKeyKeyListener.META_SELECTING) != 0) { 6949 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 6950 } 6951 } 6952 6953 public void onSpanChanged(Spannable buf, 6954 Object what, int s, int e, int st, int en) { 6955 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 6956 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 6957 TextView.this.spanChange(buf, what, s, st, e, en); 6958 } 6959 6960 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 6961 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 6962 + " what=" + what + ": " + buf); 6963 TextView.this.spanChange(buf, what, -1, s, -1, e); 6964 } 6965 6966 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 6967 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 6968 + " what=" + what + ": " + buf); 6969 TextView.this.spanChange(buf, what, s, -1, e, -1); 6970 } 6971 } 6972 6973 private void makeBlink() { 6974 if (!mCursorVisible || !isTextEditable()) { 6975 if (mBlink != null) { 6976 mBlink.removeCallbacks(mBlink); 6977 } 6978 6979 return; 6980 } 6981 6982 if (mBlink == null) 6983 mBlink = new Blink(this); 6984 6985 mBlink.removeCallbacks(mBlink); 6986 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 6987 } 6988 6989 /** 6990 * @hide 6991 */ 6992 @Override 6993 public void dispatchFinishTemporaryDetach() { 6994 mDispatchTemporaryDetach = true; 6995 super.dispatchFinishTemporaryDetach(); 6996 mDispatchTemporaryDetach = false; 6997 } 6998 6999 @Override 7000 public void onStartTemporaryDetach() { 7001 super.onStartTemporaryDetach(); 7002 // Only track when onStartTemporaryDetach() is called directly, 7003 // usually because this instance is an editable field in a list 7004 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 7005 } 7006 7007 @Override 7008 public void onFinishTemporaryDetach() { 7009 super.onFinishTemporaryDetach(); 7010 // Only track when onStartTemporaryDetach() is called directly, 7011 // usually because this instance is an editable field in a list 7012 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 7013 } 7014 7015 @Override 7016 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 7017 if (mTemporaryDetach) { 7018 // If we are temporarily in the detach state, then do nothing. 7019 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7020 return; 7021 } 7022 7023 mShowCursor = SystemClock.uptimeMillis(); 7024 7025 ensureEndedBatchEdit(); 7026 7027 if (focused) { 7028 int selStart = getSelectionStart(); 7029 int selEnd = getSelectionEnd(); 7030 7031 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 7032 // mode for these, unless there was a specific selection already started. 7033 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 7034 selEnd == mText.length(); 7035 mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted; 7036 7037 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 7038 // If a tap was used to give focus to that view, move cursor at tap position. 7039 // Has to be done before onTakeFocus, which can be overloaded. 7040 final int lastTapPosition = getLastTapPosition(); 7041 if (lastTapPosition >= 0) { 7042 Selection.setSelection((Spannable) mText, lastTapPosition); 7043 } 7044 7045 if (mMovement != null) { 7046 mMovement.onTakeFocus(this, (Spannable) mText, direction); 7047 } 7048 7049 // The DecorView does not have focus when the 'Done' ExtractEditText button is 7050 // pressed. Since it is the ViewRoot's mView, it requests focus before 7051 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 7052 // This special case ensure that we keep current selection in that case. 7053 // It would be better to know why the DecorView does not have focus at that time. 7054 if (((this instanceof ExtractEditText) || mSelectionMoved) && 7055 selStart >= 0 && selEnd >= 0) { 7056 /* 7057 * Someone intentionally set the selection, so let them 7058 * do whatever it is that they wanted to do instead of 7059 * the default on-focus behavior. We reset the selection 7060 * here instead of just skipping the onTakeFocus() call 7061 * because some movement methods do something other than 7062 * just setting the selection in theirs and we still 7063 * need to go through that path. 7064 */ 7065 Selection.setSelection((Spannable) mText, selStart, selEnd); 7066 } 7067 7068 if (mSelectAllOnFocus) { 7069 selectAll(); 7070 } 7071 7072 mTouchFocusSelected = true; 7073 } 7074 7075 mFrozenWithFocus = false; 7076 mSelectionMoved = false; 7077 7078 if (mText instanceof Spannable) { 7079 Spannable sp = (Spannable) mText; 7080 MetaKeyKeyListener.resetMetaState(sp); 7081 } 7082 7083 makeBlink(); 7084 7085 if (mError != null) { 7086 showError(); 7087 } 7088 } else { 7089 if (mError != null) { 7090 hideError(); 7091 } 7092 // Don't leave us in the middle of a batch edit. 7093 onEndBatchEdit(); 7094 7095 hideInsertionPointCursorController(); 7096 if (this instanceof ExtractEditText) { 7097 // terminateTextSelectionMode removes selection, which we want to keep when 7098 // ExtractEditText goes out of focus. 7099 final int selStart = getSelectionStart(); 7100 final int selEnd = getSelectionEnd(); 7101 terminateSelectionActionMode(); 7102 Selection.setSelection((Spannable) mText, selStart, selEnd); 7103 } else { 7104 terminateSelectionActionMode(); 7105 } 7106 7107 // No need to create the controller 7108 if (mSelectionModifierCursorController != null) { 7109 mSelectionModifierCursorController.resetTouchOffsets(); 7110 } 7111 } 7112 7113 startStopMarquee(focused); 7114 7115 if (mTransformation != null) { 7116 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 7117 } 7118 7119 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7120 } 7121 7122 private int getLastTapPosition() { 7123 // No need to create the controller at that point, no last tap position saved 7124 if (mSelectionModifierCursorController != null) { 7125 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 7126 if (lastTapPosition >= 0) { 7127 // Safety check, should not be possible. 7128 if (lastTapPosition > mText.length()) { 7129 Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs " 7130 + mText.length() + ")"); 7131 lastTapPosition = mText.length(); 7132 } 7133 return lastTapPosition; 7134 } 7135 } 7136 7137 return -1; 7138 } 7139 7140 @Override 7141 public void onWindowFocusChanged(boolean hasWindowFocus) { 7142 super.onWindowFocusChanged(hasWindowFocus); 7143 7144 if (hasWindowFocus) { 7145 if (mBlink != null) { 7146 mBlink.uncancel(); 7147 7148 if (isFocused()) { 7149 mShowCursor = SystemClock.uptimeMillis(); 7150 makeBlink(); 7151 } 7152 } 7153 } else { 7154 if (mBlink != null) { 7155 mBlink.cancel(); 7156 } 7157 // Don't leave us in the middle of a batch edit. 7158 onEndBatchEdit(); 7159 if (mInputContentType != null) { 7160 mInputContentType.enterDown = false; 7161 } 7162 hideControllers(); 7163 } 7164 7165 startStopMarquee(hasWindowFocus); 7166 } 7167 7168 @Override 7169 protected void onVisibilityChanged(View changedView, int visibility) { 7170 super.onVisibilityChanged(changedView, visibility); 7171 if (visibility != VISIBLE) { 7172 hideControllers(); 7173 } 7174 } 7175 7176 /** 7177 * Use {@link BaseInputConnection#removeComposingSpans 7178 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 7179 * state from this text view. 7180 */ 7181 public void clearComposingText() { 7182 if (mText instanceof Spannable) { 7183 BaseInputConnection.removeComposingSpans((Spannable)mText); 7184 } 7185 } 7186 7187 @Override 7188 public void setSelected(boolean selected) { 7189 boolean wasSelected = isSelected(); 7190 7191 super.setSelected(selected); 7192 7193 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7194 if (selected) { 7195 startMarquee(); 7196 } else { 7197 stopMarquee(); 7198 } 7199 } 7200 } 7201 7202 class CommitSelectionReceiver extends ResultReceiver { 7203 private final int mPrevStart, mPrevEnd; 7204 7205 public CommitSelectionReceiver(int prevStart, int prevEnd) { 7206 super(getHandler()); 7207 mPrevStart = prevStart; 7208 mPrevEnd = prevEnd; 7209 } 7210 7211 @Override 7212 protected void onReceiveResult(int resultCode, Bundle resultData) { 7213 // If this tap was actually used to show the IMM, leave cursor or selection unchanged 7214 // by restoring its previous position. 7215 if (resultCode == InputMethodManager.RESULT_SHOWN) { 7216 final int len = mText.length(); 7217 int start = Math.min(len, mPrevStart); 7218 int end = Math.min(len, mPrevEnd); 7219 Selection.setSelection((Spannable)mText, start, end); 7220 7221 boolean selectAllGotFocus = mSelectAllOnFocus && mTouchFocusSelected; 7222 if (hasSelection() && !selectAllGotFocus) { 7223 startSelectionActionMode(); 7224 } 7225 } 7226 } 7227 } 7228 7229 @Override 7230 public boolean onTouchEvent(MotionEvent event) { 7231 final int action = event.getActionMasked(); 7232 7233 if (hasInsertionController()) { 7234 getInsertionController().onTouchEvent(event); 7235 } 7236 if (hasSelectionController()) { 7237 getSelectionController().onTouchEvent(event); 7238 } 7239 7240 if (action == MotionEvent.ACTION_DOWN) { 7241 mLastDownPositionX = (int) event.getX(); 7242 mLastDownPositionY = (int) event.getY(); 7243 7244 // Reset this state; it will be re-set if super.onTouchEvent 7245 // causes focus to move to the view. 7246 mTouchFocusSelected = false; 7247 mIgnoreActionUpEvent = false; 7248 } 7249 7250 final boolean superResult = super.onTouchEvent(event); 7251 7252 /* 7253 * Don't handle the release after a long press, because it will 7254 * move the selection away from whatever the menu action was 7255 * trying to affect. 7256 */ 7257 if (mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 7258 mDiscardNextActionUp = false; 7259 return superResult; 7260 } 7261 7262 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 7263 && mText instanceof Spannable && mLayout != null) { 7264 boolean handled = false; 7265 7266 // Save previous selection, in case this event is used to show the IME. 7267 int oldSelStart = getSelectionStart(); 7268 int oldSelEnd = getSelectionEnd(); 7269 7270 final int oldScrollX = mScrollX; 7271 final int oldScrollY = mScrollY; 7272 7273 if (mMovement != null) { 7274 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 7275 } 7276 7277 if (mLinksClickable && mAutoLinkMask != 0 && mTextIsSelectable && 7278 action == MotionEvent.ACTION_UP && !mIgnoreActionUpEvent && isFocused()) { 7279 // The LinkMovementMethod which should handle taps on links has not been installed 7280 // to support text selection. We reproduce its behavior here to open links. 7281 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 7282 getSelectionEnd(), ClickableSpan.class); 7283 7284 if (links.length != 0) { 7285 links[0].onClick(this); 7286 handled = true; 7287 } 7288 } 7289 7290 if (isTextEditable() || mTextIsSelectable) { 7291 if (mScrollX != oldScrollX || mScrollY != oldScrollY) { 7292 // Hide insertion anchor while scrolling. Leave selection. 7293 hideInsertionPointCursorController(); 7294 // No need to create the controller, since there is nothing to update. 7295 if (mSelectionModifierCursorController != null && 7296 mSelectionModifierCursorController.isShowing()) { 7297 mSelectionModifierCursorController.updatePosition(); 7298 } 7299 } 7300 if (action == MotionEvent.ACTION_UP && !mIgnoreActionUpEvent && isFocused()) { 7301 InputMethodManager imm = (InputMethodManager) 7302 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 7303 7304 CommitSelectionReceiver csr = null; 7305 if (getSelectionStart() != oldSelStart || getSelectionEnd() != oldSelEnd || 7306 didTouchFocusSelect()) { 7307 csr = new CommitSelectionReceiver(oldSelStart, oldSelEnd); 7308 } 7309 7310 if (!mTextIsSelectable) { 7311 // Show the IME, except when selecting in read-only text. 7312 handled |= imm.showSoftInput(this, 0, csr) && (csr != null); 7313 } 7314 7315 stopSelectionActionMode(); 7316 boolean selectAllGotFocus = mSelectAllOnFocus && mTouchFocusSelected; 7317 if (hasInsertionController() && !selectAllGotFocus) { 7318 getInsertionController().show(); 7319 } 7320 } 7321 } 7322 7323 if (handled) { 7324 return true; 7325 } 7326 } 7327 7328 return superResult; 7329 } 7330 7331 private void prepareCursorControllers() { 7332 boolean windowSupportsHandles = false; 7333 7334 ViewGroup.LayoutParams params = getRootView().getLayoutParams(); 7335 if (params instanceof WindowManager.LayoutParams) { 7336 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 7337 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 7338 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 7339 } 7340 7341 mInsertionControllerEnabled = windowSupportsHandles && isTextEditable() && mCursorVisible && 7342 mLayout != null; 7343 mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() && 7344 mLayout != null; 7345 7346 if (!mInsertionControllerEnabled) { 7347 hideInsertionPointCursorController(); 7348 mInsertionPointCursorController = null; 7349 } 7350 7351 if (!mSelectionControllerEnabled) { 7352 stopSelectionActionMode(); 7353 mSelectionModifierCursorController = null; 7354 } 7355 } 7356 7357 /** 7358 * @return True iff this TextView contains a text that can be edited, or if this is 7359 * a selectable TextView. 7360 */ 7361 private boolean isTextEditable() { 7362 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 7363 } 7364 7365 /** 7366 * Returns true, only while processing a touch gesture, if the initial 7367 * touch down event caused focus to move to the text view and as a result 7368 * its selection changed. Only valid while processing the touch gesture 7369 * of interest. 7370 */ 7371 public boolean didTouchFocusSelect() { 7372 return mTouchFocusSelected; 7373 } 7374 7375 @Override 7376 public void cancelLongPress() { 7377 super.cancelLongPress(); 7378 mIgnoreActionUpEvent = true; 7379 } 7380 7381 @Override 7382 public boolean onTrackballEvent(MotionEvent event) { 7383 if (mMovement != null && mText instanceof Spannable && 7384 mLayout != null) { 7385 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 7386 return true; 7387 } 7388 } 7389 7390 return super.onTrackballEvent(event); 7391 } 7392 7393 public void setScroller(Scroller s) { 7394 mScroller = s; 7395 } 7396 7397 private static class Blink extends Handler implements Runnable { 7398 private final WeakReference<TextView> mView; 7399 private boolean mCancelled; 7400 7401 public Blink(TextView v) { 7402 mView = new WeakReference<TextView>(v); 7403 } 7404 7405 public void run() { 7406 if (mCancelled) { 7407 return; 7408 } 7409 7410 removeCallbacks(Blink.this); 7411 7412 TextView tv = mView.get(); 7413 7414 if (tv != null && tv.isFocused()) { 7415 int st = tv.getSelectionStart(); 7416 int en = tv.getSelectionEnd(); 7417 7418 if (st == en && st >= 0 && en >= 0) { 7419 if (tv.mLayout != null) { 7420 tv.invalidateCursorPath(); 7421 } 7422 7423 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 7424 } 7425 } 7426 } 7427 7428 void cancel() { 7429 if (!mCancelled) { 7430 removeCallbacks(Blink.this); 7431 mCancelled = true; 7432 } 7433 } 7434 7435 void uncancel() { 7436 mCancelled = false; 7437 } 7438 } 7439 7440 @Override 7441 protected float getLeftFadingEdgeStrength() { 7442 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7443 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7444 if (mMarquee != null && !mMarquee.isStopped()) { 7445 final Marquee marquee = mMarquee; 7446 if (marquee.shouldDrawLeftFade()) { 7447 return marquee.mScroll / getHorizontalFadingEdgeLength(); 7448 } else { 7449 return 0.0f; 7450 } 7451 } else if (getLineCount() == 1) { 7452 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7453 case Gravity.LEFT: 7454 return 0.0f; 7455 case Gravity.RIGHT: 7456 return (mLayout.getLineRight(0) - (mRight - mLeft) - 7457 getCompoundPaddingLeft() - getCompoundPaddingRight() - 7458 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 7459 case Gravity.CENTER_HORIZONTAL: 7460 return 0.0f; 7461 } 7462 } 7463 } 7464 return super.getLeftFadingEdgeStrength(); 7465 } 7466 7467 @Override 7468 protected float getRightFadingEdgeStrength() { 7469 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7470 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7471 if (mMarquee != null && !mMarquee.isStopped()) { 7472 final Marquee marquee = mMarquee; 7473 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 7474 } else if (getLineCount() == 1) { 7475 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7476 case Gravity.LEFT: 7477 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 7478 getCompoundPaddingRight(); 7479 final float lineWidth = mLayout.getLineWidth(0); 7480 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 7481 case Gravity.RIGHT: 7482 return 0.0f; 7483 case Gravity.CENTER_HORIZONTAL: 7484 case Gravity.FILL_HORIZONTAL: 7485 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 7486 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 7487 getHorizontalFadingEdgeLength(); 7488 } 7489 } 7490 } 7491 return super.getRightFadingEdgeStrength(); 7492 } 7493 7494 @Override 7495 protected int computeHorizontalScrollRange() { 7496 if (mLayout != null) { 7497 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 7498 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 7499 } 7500 7501 return super.computeHorizontalScrollRange(); 7502 } 7503 7504 @Override 7505 protected int computeVerticalScrollRange() { 7506 if (mLayout != null) 7507 return mLayout.getHeight(); 7508 7509 return super.computeVerticalScrollRange(); 7510 } 7511 7512 @Override 7513 protected int computeVerticalScrollExtent() { 7514 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 7515 } 7516 7517 public enum BufferType { 7518 NORMAL, SPANNABLE, EDITABLE, 7519 } 7520 7521 /** 7522 * Returns the TextView_textColor attribute from the 7523 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 7524 * from the TextView_textAppearance attribute, if TextView_textColor 7525 * was not set directly. 7526 */ 7527 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 7528 ColorStateList colors; 7529 colors = attrs.getColorStateList(com.android.internal.R.styleable. 7530 TextView_textColor); 7531 7532 if (colors == null) { 7533 int ap = attrs.getResourceId(com.android.internal.R.styleable. 7534 TextView_textAppearance, -1); 7535 if (ap != -1) { 7536 TypedArray appearance; 7537 appearance = context.obtainStyledAttributes(ap, 7538 com.android.internal.R.styleable.TextAppearance); 7539 colors = appearance.getColorStateList(com.android.internal.R.styleable. 7540 TextAppearance_textColor); 7541 appearance.recycle(); 7542 } 7543 } 7544 7545 return colors; 7546 } 7547 7548 /** 7549 * Returns the default color from the TextView_textColor attribute 7550 * from the AttributeSet, if set, or the default color from the 7551 * TextAppearance_textColor from the TextView_textAppearance attribute, 7552 * if TextView_textColor was not set directly. 7553 */ 7554 public static int getTextColor(Context context, 7555 TypedArray attrs, 7556 int def) { 7557 ColorStateList colors = getTextColors(context, attrs); 7558 7559 if (colors == null) { 7560 return def; 7561 } else { 7562 return colors.getDefaultColor(); 7563 } 7564 } 7565 7566 @Override 7567 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 7568 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 7569 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 7570 switch (keyCode) { 7571 case KeyEvent.KEYCODE_A: 7572 if (canSelectText()) { 7573 return onTextContextMenuItem(ID_SELECT_ALL); 7574 } 7575 break; 7576 case KeyEvent.KEYCODE_X: 7577 if (canCut()) { 7578 return onTextContextMenuItem(ID_CUT); 7579 } 7580 break; 7581 case KeyEvent.KEYCODE_C: 7582 if (canCopy()) { 7583 return onTextContextMenuItem(ID_COPY); 7584 } 7585 break; 7586 case KeyEvent.KEYCODE_V: 7587 if (canPaste()) { 7588 return onTextContextMenuItem(ID_PASTE); 7589 } 7590 break; 7591 } 7592 } 7593 return super.onKeyShortcut(keyCode, event); 7594 } 7595 7596 /** 7597 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 7598 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 7599 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 7600 */ 7601 private boolean canSelectText() { 7602 return hasSelectionController() && mText.length() != 0; 7603 } 7604 7605 /** 7606 * Test based on the <i>intrinsic</i> charateristics of the TextView. 7607 * The text must be spannable and the movement method must allow for arbitary selection. 7608 * 7609 * See also {@link #canSelectText()}. 7610 */ 7611 private boolean textCanBeSelected() { 7612 // prepareCursorController() relies on this method. 7613 // If you change this condition, make sure prepareCursorController is called anywhere 7614 // the value of this condition might be changed. 7615 return mText instanceof Spannable && mMovement != null && mMovement.canSelectArbitrarily(); 7616 } 7617 7618 private boolean canCut() { 7619 if (hasPasswordTransformationMethod()) { 7620 return false; 7621 } 7622 7623 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mInput != null) { 7624 return true; 7625 } 7626 7627 return false; 7628 } 7629 7630 private boolean canCopy() { 7631 if (hasPasswordTransformationMethod()) { 7632 return false; 7633 } 7634 7635 if (mText.length() > 0 && hasSelection()) { 7636 return true; 7637 } 7638 7639 return false; 7640 } 7641 7642 private boolean canPaste() { 7643 return (mText instanceof Editable && 7644 mInput != null && 7645 getSelectionStart() >= 0 && 7646 getSelectionEnd() >= 0 && 7647 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 7648 hasPrimaryClip()); 7649 } 7650 7651 private boolean isWordCharacter(int c, int type) { 7652 return (c == '\'' || c == '"' || 7653 type == Character.UPPERCASE_LETTER || 7654 type == Character.LOWERCASE_LETTER || 7655 type == Character.TITLECASE_LETTER || 7656 type == Character.MODIFIER_LETTER || 7657 type == Character.OTHER_LETTER || // Should handle asian characters 7658 type == Character.DECIMAL_DIGIT_NUMBER); 7659 } 7660 7661 /** 7662 * Returns the offsets delimiting the 'word' located at position offset. 7663 * 7664 * @param offset An offset in the text. 7665 * @return The offsets for the start and end of the word located at <code>offset</code>. 7666 * The two ints offsets are packed in a long using {@link #packRangeInLong(int, int)}. 7667 * Returns -1 if no valid word was found. 7668 */ 7669 private long getWordLimitsAt(int offset) { 7670 int klass = mInputType & InputType.TYPE_MASK_CLASS; 7671 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 7672 7673 // Text selection is not permitted in password fields 7674 if (hasPasswordTransformationMethod()) { 7675 return -1; 7676 } 7677 7678 final int len = mText.length(); 7679 7680 // Specific text fields: always select the entire text 7681 if (klass == InputType.TYPE_CLASS_NUMBER || 7682 klass == InputType.TYPE_CLASS_PHONE || 7683 klass == InputType.TYPE_CLASS_DATETIME || 7684 variation == InputType.TYPE_TEXT_VARIATION_URI || 7685 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 7686 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 7687 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 7688 return len > 0 ? packRangeInLong(0, len) : -1; 7689 } 7690 7691 int end = Math.min(offset, len); 7692 if (end < 0) { 7693 return -1; 7694 } 7695 7696 final int MAX_LENGTH = 48; 7697 int start = end; 7698 7699 for (; start > 0; start--) { 7700 final char c = mTransformed.charAt(start - 1); 7701 final int type = Character.getType(c); 7702 if (start == end && type == Character.OTHER_PUNCTUATION) { 7703 // Cases where the text ends with a '.' and we select from the end of the line 7704 // (right after the dot), or when we select from the space character in "aaa, bbb". 7705 continue; 7706 } 7707 if (type == Character.SURROGATE) { // Two Character codepoint 7708 end = start - 1; // Recheck as a pair when scanning forward 7709 continue; 7710 } 7711 if (!isWordCharacter(c, type)) break; 7712 if ((end - start) > MAX_LENGTH) return -1; 7713 } 7714 7715 for (; end < len; end++) { 7716 final int c = Character.codePointAt(mTransformed, end); 7717 final int type = Character.getType(c); 7718 if (!isWordCharacter(c, type)) break; 7719 if ((end - start) > MAX_LENGTH) return -1; 7720 if (c > 0xFFFF) { // Two Character codepoint 7721 end++; 7722 } 7723 } 7724 7725 if (start == end) { 7726 return -1; 7727 } 7728 7729 // Two ints packed in a long 7730 return packRangeInLong(start, end); 7731 } 7732 7733 private static long packRangeInLong(int start, int end) { 7734 return (((long) start) << 32) | end; 7735 } 7736 7737 private static int extractRangeStartFromLong(long range) { 7738 return (int) (range >>> 32); 7739 } 7740 7741 private static int extractRangeEndFromLong(long range) { 7742 return (int) (range & 0x00000000FFFFFFFFL); 7743 } 7744 7745 private void selectAll() { 7746 Selection.setSelection((Spannable) mText, 0, mText.length()); 7747 } 7748 7749 private void selectCurrentWord() { 7750 if (!canSelectText()) { 7751 return; 7752 } 7753 7754 if (hasPasswordTransformationMethod()) { 7755 // Always select all on a password field. 7756 // Cut/copy menu entries are not available for passwords, but being able to select all 7757 // is however useful to delete or paste to replace the entire content. 7758 selectAll(); 7759 return; 7760 } 7761 7762 long lastTouchOffsets = getLastTouchOffsets(); 7763 final int minOffset = extractRangeStartFromLong(lastTouchOffsets); 7764 final int maxOffset = extractRangeEndFromLong(lastTouchOffsets); 7765 7766 int selectionStart, selectionEnd; 7767 7768 // If a URLSpan (web address, email, phone...) is found at that position, select it. 7769 URLSpan[] urlSpans = ((Spanned) mText).getSpans(minOffset, maxOffset, URLSpan.class); 7770 if (urlSpans.length == 1) { 7771 URLSpan url = urlSpans[0]; 7772 selectionStart = ((Spanned) mText).getSpanStart(url); 7773 selectionEnd = ((Spanned) mText).getSpanEnd(url); 7774 } else { 7775 long wordLimits = getWordLimitsAt(minOffset); 7776 if (wordLimits >= 0) { 7777 selectionStart = extractRangeStartFromLong(wordLimits); 7778 } else { 7779 selectionStart = Math.max(minOffset - 5, 0); 7780 } 7781 7782 wordLimits = getWordLimitsAt(maxOffset); 7783 if (wordLimits >= 0) { 7784 selectionEnd = extractRangeEndFromLong(wordLimits); 7785 } else { 7786 selectionEnd = Math.min(maxOffset + 5, mText.length()); 7787 } 7788 } 7789 7790 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 7791 } 7792 7793 private long getLastTouchOffsets() { 7794 int minOffset, maxOffset; 7795 7796 if (mContextMenuTriggeredByKey) { 7797 minOffset = getSelectionStart(); 7798 maxOffset = getSelectionEnd(); 7799 } else { 7800 SelectionModifierCursorController selectionController = getSelectionController(); 7801 minOffset = selectionController.getMinTouchOffset(); 7802 maxOffset = selectionController.getMaxTouchOffset(); 7803 } 7804 7805 return packRangeInLong(minOffset, maxOffset); 7806 } 7807 7808 @Override 7809 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 7810 if (!isShown()) { 7811 return false; 7812 } 7813 7814 final boolean isPassword = hasPasswordTransformationMethod(); 7815 7816 if (!isPassword) { 7817 CharSequence text = getText(); 7818 if (TextUtils.isEmpty(text)) { 7819 text = getHint(); 7820 } 7821 if (!TextUtils.isEmpty(text)) { 7822 if (text.length() > AccessibilityEvent.MAX_TEXT_LENGTH) { 7823 text = text.subSequence(0, AccessibilityEvent.MAX_TEXT_LENGTH + 1); 7824 } 7825 event.getText().add(text); 7826 } 7827 } else { 7828 event.setPassword(isPassword); 7829 } 7830 return false; 7831 } 7832 7833 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 7834 int fromIndex, int removedCount, int addedCount) { 7835 AccessibilityEvent event = 7836 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 7837 event.setFromIndex(fromIndex); 7838 event.setRemovedCount(removedCount); 7839 event.setAddedCount(addedCount); 7840 event.setBeforeText(beforeText); 7841 sendAccessibilityEventUnchecked(event); 7842 } 7843 7844 @Override 7845 protected void onCreateContextMenu(ContextMenu menu) { 7846 super.onCreateContextMenu(menu); 7847 boolean added = false; 7848 mContextMenuTriggeredByKey = mDPadCenterIsDown || mEnterKeyIsDown; 7849 // Problem with context menu on long press: the menu appears while the key in down and when 7850 // the key is released, the view does not receive the key_up event. 7851 // We need two layers of flags: mDPadCenterIsDown and mEnterKeyIsDown are set in key down/up 7852 // events. We cannot simply clear these flags in onTextContextMenuItem since 7853 // it may not be called (if the user/ discards the context menu with the back key). 7854 // We clear these flags here and mContextMenuTriggeredByKey saves that state so that it is 7855 // available in onTextContextMenuItem. 7856 mDPadCenterIsDown = mEnterKeyIsDown = false; 7857 7858 MenuHandler handler = new MenuHandler(); 7859 7860 if (mText instanceof Spanned && hasSelectionController()) { 7861 long lastTouchOffset = getLastTouchOffsets(); 7862 final int selStart = extractRangeStartFromLong(lastTouchOffset); 7863 final int selEnd = extractRangeEndFromLong(lastTouchOffset); 7864 7865 URLSpan[] urls = ((Spanned) mText).getSpans(selStart, selEnd, URLSpan.class); 7866 if (urls.length > 0) { 7867 menu.add(0, ID_COPY_URL, 0, com.android.internal.R.string.copyUrl). 7868 setOnMenuItemClickListener(handler); 7869 7870 added = true; 7871 } 7872 } 7873 7874 // The context menu is not empty, which will prevent the selection mode from starting. 7875 // Add a entry to start it in the context menu. 7876 // TODO Does not handle the case where a subclass does not call super.thisMethod or 7877 // populates the menu AFTER this call. 7878 if (menu.size() > 0) { 7879 menu.add(0, ID_SELECTION_MODE, 0, com.android.internal.R.string.selectTextMode). 7880 setOnMenuItemClickListener(handler); 7881 added = true; 7882 } 7883 7884 if (added) { 7885 menu.setHeaderTitle(com.android.internal.R.string.editTextMenuTitle); 7886 } 7887 } 7888 7889 /** 7890 * Returns whether this text view is a current input method target. The 7891 * default implementation just checks with {@link InputMethodManager}. 7892 */ 7893 public boolean isInputMethodTarget() { 7894 InputMethodManager imm = InputMethodManager.peekInstance(); 7895 return imm != null && imm.isActive(this); 7896 } 7897 7898 // Selection context mode 7899 private static final int ID_SELECT_ALL = android.R.id.selectAll; 7900 private static final int ID_CUT = android.R.id.cut; 7901 private static final int ID_COPY = android.R.id.copy; 7902 private static final int ID_PASTE = android.R.id.paste; 7903 // Context menu entries 7904 private static final int ID_COPY_URL = android.R.id.copyUrl; 7905 private static final int ID_SELECTION_MODE = android.R.id.selectTextMode; 7906 7907 private class MenuHandler implements MenuItem.OnMenuItemClickListener { 7908 public boolean onMenuItemClick(MenuItem item) { 7909 return onTextContextMenuItem(item.getItemId()); 7910 } 7911 } 7912 7913 /** 7914 * Called when a context menu option for the text view is selected. Currently 7915 * this will be {@link android.R.id#copyUrl}, {@link android.R.id#selectTextMode}, 7916 * {@link android.R.id#selectAll}, {@link android.R.id#paste}, {@link android.R.id#cut} 7917 * or {@link android.R.id#copy}. 7918 */ 7919 public boolean onTextContextMenuItem(int id) { 7920 int min = 0; 7921 int max = mText.length(); 7922 7923 if (isFocused()) { 7924 final int selStart = getSelectionStart(); 7925 final int selEnd = getSelectionEnd(); 7926 7927 min = Math.max(0, Math.min(selStart, selEnd)); 7928 max = Math.max(0, Math.max(selStart, selEnd)); 7929 } 7930 7931 ClipboardManager clipboard = (ClipboardManager)getContext() 7932 .getSystemService(Context.CLIPBOARD_SERVICE); 7933 7934 switch (id) { 7935 case ID_COPY_URL: 7936 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, URLSpan.class); 7937 if (urls.length >= 1) { 7938 ClipData clip = null; 7939 for (int i=0; i<urls.length; i++) { 7940 Uri uri = Uri.parse(urls[0].getURL()); 7941 if (clip == null) { 7942 clip = ClipData.newRawUri(null, null, uri); 7943 } else { 7944 clip.addItem(new ClipData.Item(uri)); 7945 } 7946 } 7947 if (clip != null) { 7948 setPrimaryClip(clip); 7949 } 7950 } 7951 stopSelectionActionMode(); 7952 return true; 7953 7954 case ID_SELECTION_MODE: 7955 if (mSelectionActionMode != null) { 7956 // Selection mode is already started, simply change selected part. 7957 updateSelectedRegion(); 7958 } else { 7959 startSelectionActionMode(); 7960 } 7961 return true; 7962 7963 case ID_SELECT_ALL: 7964 selectAll(); 7965 // Update controller positions after selection change. 7966 if (hasSelectionController()) { 7967 getSelectionController().show(); 7968 } 7969 return true; 7970 7971 case ID_PASTE: 7972 paste(min, max); 7973 return true; 7974 7975 case ID_CUT: 7976 setPrimaryClip(ClipData.newPlainText(null, null, 7977 mTransformed.subSequence(min, max))); 7978 ((Editable) mText).delete(min, max); 7979 stopSelectionActionMode(); 7980 return true; 7981 7982 case ID_COPY: 7983 setPrimaryClip(ClipData.newPlainText(null, null, 7984 mTransformed.subSequence(min, max))); 7985 stopSelectionActionMode(); 7986 return true; 7987 } 7988 return false; 7989 } 7990 7991 /** 7992 * Prepare text so that there are not zero or two spaces at beginning and end of region defined 7993 * by [min, max] when replacing this region by paste. 7994 * Note that if there were two spaces (or more) at that position before, they are kept. We just 7995 * make sure we do not add an extra one from the paste content. 7996 */ 7997 private long prepareSpacesAroundPaste(int min, int max, CharSequence paste) { 7998 if (paste.length() > 0) { 7999 if (min > 0) { 8000 final char charBefore = mTransformed.charAt(min - 1); 8001 final char charAfter = paste.charAt(0); 8002 8003 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8004 // Two spaces at beginning of paste: remove one 8005 final int originalLength = mText.length(); 8006 ((Editable) mText).delete(min - 1, min); 8007 // Due to filters, there is no guarantee that exactly one character was 8008 // removed: count instead. 8009 final int delta = mText.length() - originalLength; 8010 min += delta; 8011 max += delta; 8012 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8013 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8014 // No space at beginning of paste: add one 8015 final int originalLength = mText.length(); 8016 ((Editable) mText).replace(min, min, " "); 8017 // Taking possible filters into account as above. 8018 final int delta = mText.length() - originalLength; 8019 min += delta; 8020 max += delta; 8021 } 8022 } 8023 8024 if (max < mText.length()) { 8025 final char charBefore = paste.charAt(paste.length() - 1); 8026 final char charAfter = mTransformed.charAt(max); 8027 8028 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8029 // Two spaces at end of paste: remove one 8030 ((Editable) mText).delete(max, max + 1); 8031 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8032 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8033 // No space at end of paste: add one 8034 ((Editable) mText).replace(max, max, " "); 8035 } 8036 } 8037 } 8038 8039 return packRangeInLong(min, max); 8040 } 8041 8042 private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { 8043 TextView shadowView = (TextView) inflate(mContext, 8044 com.android.internal.R.layout.text_drag_thumbnail, null); 8045 8046 if (shadowView == null) { 8047 throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); 8048 } 8049 8050 if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { 8051 text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); 8052 } 8053 shadowView.setText(text); 8054 shadowView.setTextColor(getTextColors()); 8055 8056 shadowView.setTextAppearance(mContext, R.styleable.Theme_textAppearanceLarge); 8057 shadowView.setGravity(Gravity.CENTER); 8058 8059 shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 8060 ViewGroup.LayoutParams.WRAP_CONTENT)); 8061 8062 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8063 shadowView.measure(size, size); 8064 8065 shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); 8066 shadowView.invalidate(); 8067 return new DragShadowBuilder(shadowView); 8068 } 8069 8070 private static class DragLocalState { 8071 public TextView sourceTextView; 8072 public int start, end; 8073 8074 public DragLocalState(TextView sourceTextView, int start, int end) { 8075 this.sourceTextView = sourceTextView; 8076 this.start = start; 8077 this.end = end; 8078 } 8079 } 8080 8081 @Override 8082 public boolean performLongClick() { 8083 if (super.performLongClick()) { 8084 mDiscardNextActionUp = true; 8085 return true; 8086 } 8087 8088 // Long press in empty space moves cursor and shows the Paste affordance if available. 8089 if (!isPositionOnText(mLastDownPositionX, mLastDownPositionY) && 8090 mInsertionControllerEnabled) { 8091 final int offset = getOffset(mLastDownPositionX, mLastDownPositionY); 8092 stopSelectionActionMode(); 8093 Selection.setSelection((Spannable)mText, offset); 8094 getInsertionController().show(0); 8095 mDiscardNextActionUp = true; 8096 return true; 8097 } 8098 8099 if (mSelectionActionMode != null) { 8100 if (touchPositionIsInSelection()) { 8101 // Start a drag 8102 final int start = getSelectionStart(); 8103 final int end = getSelectionEnd(); 8104 CharSequence selectedText = mTransformed.subSequence(start, end); 8105 ClipData data = ClipData.newPlainText(null, null, selectedText); 8106 DragLocalState localState = new DragLocalState(this, start, end); 8107 startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); 8108 stopSelectionActionMode(); 8109 } else { 8110 updateSelectedRegion(); 8111 } 8112 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 8113 mDiscardNextActionUp = true; 8114 return true; 8115 } 8116 8117 // Start a new selection 8118 if (startSelectionActionMode()) { 8119 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 8120 mDiscardNextActionUp = true; 8121 return true; 8122 } 8123 8124 return false; 8125 } 8126 8127 /** 8128 * When selection mode is already started, this method simply updates the selected part of text 8129 * to the text under the finger. 8130 */ 8131 private void updateSelectedRegion() { 8132 // Start a new selection at current position, keep selectionAction mode on 8133 selectCurrentWord(); 8134 // Updates handles' positions 8135 getSelectionController().show(); 8136 } 8137 8138 private boolean touchPositionIsInSelection() { 8139 int selectionStart = getSelectionStart(); 8140 int selectionEnd = getSelectionEnd(); 8141 8142 if (selectionStart == selectionEnd) { 8143 return false; 8144 } 8145 8146 if (selectionStart > selectionEnd) { 8147 int tmp = selectionStart; 8148 selectionStart = selectionEnd; 8149 selectionEnd = tmp; 8150 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8151 } 8152 8153 SelectionModifierCursorController selectionController = getSelectionController(); 8154 int minOffset = selectionController.getMinTouchOffset(); 8155 int maxOffset = selectionController.getMaxTouchOffset(); 8156 8157 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 8158 } 8159 8160 /** 8161 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 8162 * selection is initiated in this View. 8163 * 8164 * The standard implementation populates the menu with a subset of Select All, Cut, Copy and 8165 * Paste actions, depending on what this View supports. 8166 * 8167 * A custom implementation can add new entries in the default menu in its 8168 * {@link ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The default actions 8169 * can also be removed from the menu using {@link Menu#removeItem(int)} and passing 8170 * {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy} or 8171 * {@link android.R.id#paste} ids as parameters. 8172 * 8173 * Action click events should be handled by the custom implementation of 8174 * {@link ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}. 8175 * 8176 * Note that text selection mode is not started when a TextView receives focus and the 8177 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 8178 * that case, to allow for quick replacement. 8179 */ 8180 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 8181 mCustomSelectionActionModeCallback = actionModeCallback; 8182 } 8183 8184 /** 8185 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 8186 * 8187 * @return The current custom selection callback. 8188 */ 8189 public ActionMode.Callback getCustomSelectionActionModeCallback() { 8190 return mCustomSelectionActionModeCallback; 8191 } 8192 8193 /** 8194 * 8195 * @return true if the selection mode was actually started. 8196 */ 8197 private boolean startSelectionActionMode() { 8198 if (mSelectionActionMode != null) { 8199 // Selection action mode is already started 8200 return false; 8201 } 8202 8203 if (!canSelectText() || !requestFocus()) { 8204 Log.w(LOG_TAG, "TextView does not support text selection. Action mode cancelled."); 8205 return false; 8206 } 8207 8208 if (!hasSelection()) { 8209 // If selection mode is started after a device rotation, there is already a selection. 8210 selectCurrentWord(); 8211 } 8212 8213 if (!mTextIsSelectable) { 8214 // Show the IME, except when selection non editable text. 8215 final InputMethodManager imm = (InputMethodManager) 8216 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 8217 imm.showSoftInput(this, 0, null); 8218 } 8219 8220 ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); 8221 mSelectionActionMode = startActionMode(actionModeCallback); 8222 return mSelectionActionMode != null; 8223 } 8224 8225 /** 8226 * Same as {@link #stopSelectionActionMode()}, except that there is no cursor controller 8227 * fade out animation. Needed since the drawable and their alpha values are shared by all 8228 * TextViews. Switching from one TextView to another would fade the cursor controllers in the 8229 * new one otherwise. 8230 */ 8231 private void terminateSelectionActionMode() { 8232 stopSelectionActionMode(); 8233 8234 // No need to create the controller, nothing to cancel in that case. 8235 if (mSelectionModifierCursorController != null) { 8236 mSelectionModifierCursorController.cancelFadeOutAnimation(); 8237 } 8238 } 8239 8240 private void stopSelectionActionMode() { 8241 if (mSelectionActionMode != null) { 8242 // This will hide the mSelectionModifierCursorController 8243 mSelectionActionMode.finish(); 8244 } 8245 } 8246 8247 /** 8248 * Paste clipboard content between min and max positions. 8249 */ 8250 private void paste(int min, int max) { 8251 ClipboardManager clipboard = 8252 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 8253 ClipData clip = clipboard.getPrimaryClip(); 8254 if (clip != null) { 8255 boolean didfirst = false; 8256 for (int i=0; i<clip.getItemCount(); i++) { 8257 CharSequence paste = clip.getItem(i).coerceToText(getContext()); 8258 if (paste != null) { 8259 if (!didfirst) { 8260 long minMax = prepareSpacesAroundPaste(min, max, paste); 8261 min = extractRangeStartFromLong(minMax); 8262 max = extractRangeEndFromLong(minMax); 8263 Selection.setSelection((Spannable) mText, max); 8264 ((Editable) mText).replace(min, max, paste); 8265 } else { 8266 ((Editable) mText).insert(getSelectionEnd(), "\n"); 8267 ((Editable) mText).insert(getSelectionEnd(), paste); 8268 } 8269 } 8270 } 8271 stopSelectionActionMode(); 8272 sLastCutOrCopyTime = 0; 8273 } 8274 } 8275 8276 private void setPrimaryClip(ClipData clip) { 8277 ClipboardManager clipboard = (ClipboardManager) getContext(). 8278 getSystemService(Context.CLIPBOARD_SERVICE); 8279 clipboard.setPrimaryClip(clip); 8280 sLastCutOrCopyTime = SystemClock.uptimeMillis(); 8281 } 8282 8283 /** 8284 * An ActionMode Callback class that is used to provide actions while in text selection mode. 8285 * 8286 * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending 8287 * on which of these this TextView supports. 8288 */ 8289 private class SelectionActionModeCallback implements ActionMode.Callback { 8290 8291 @Override 8292 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 8293 TypedArray styledAttributes = mContext.obtainStyledAttributes(R.styleable.Theme); 8294 8295 mode.setTitle(mContext.getString(com.android.internal.R.string.textSelectionCABTitle)); 8296 mode.setSubtitle(null); 8297 8298 menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 8299 setAlphabeticShortcut('a'). 8300 setShowAsAction( 8301 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8302 8303 if (canCut()) { 8304 menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut). 8305 setIcon(styledAttributes.getResourceId( 8306 R.styleable.Theme_actionModeCutDrawable, 0)). 8307 setAlphabeticShortcut('x'). 8308 setShowAsAction( 8309 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8310 } 8311 8312 if (canCopy()) { 8313 menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy). 8314 setIcon(styledAttributes.getResourceId( 8315 R.styleable.Theme_actionModeCopyDrawable, 0)). 8316 setAlphabeticShortcut('c'). 8317 setShowAsAction( 8318 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8319 } 8320 8321 if (canPaste()) { 8322 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 8323 setIcon(styledAttributes.getResourceId( 8324 R.styleable.Theme_actionModePasteDrawable, 0)). 8325 setAlphabeticShortcut('v'). 8326 setShowAsAction( 8327 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8328 } 8329 8330 styledAttributes.recycle(); 8331 8332 if (mCustomSelectionActionModeCallback != null) { 8333 mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu); 8334 } 8335 8336 if (menu.hasVisibleItems() || mode.getCustomView() != null) { 8337 getSelectionController().show(); 8338 return true; 8339 } else { 8340 return false; 8341 } 8342 } 8343 8344 @Override 8345 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 8346 if (mCustomSelectionActionModeCallback != null) { 8347 return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); 8348 } 8349 return true; 8350 } 8351 8352 @Override 8353 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 8354 if (mCustomSelectionActionModeCallback != null && 8355 mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { 8356 return true; 8357 } 8358 return onTextContextMenuItem(item.getItemId()); 8359 } 8360 8361 @Override 8362 public void onDestroyActionMode(ActionMode mode) { 8363 if (mCustomSelectionActionModeCallback != null) { 8364 mCustomSelectionActionModeCallback.onDestroyActionMode(mode); 8365 } 8366 Selection.setSelection((Spannable) mText, getSelectionEnd()); 8367 8368 if (mSelectionModifierCursorController != null) { 8369 mSelectionModifierCursorController.hide(); 8370 } 8371 8372 mSelectionActionMode = null; 8373 } 8374 } 8375 8376 /** 8377 * A CursorController instance can be used to control a cursor in the text. 8378 * It is not used outside of {@link TextView}. 8379 * @hide 8380 */ 8381 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 8382 /** 8383 * Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}. 8384 * See also {@link #hide()}. 8385 */ 8386 public void show(); 8387 8388 /** 8389 * Hide the cursor controller from screen. 8390 * See also {@link #show()}. 8391 */ 8392 public void hide(); 8393 8394 /** 8395 * @return true if the CursorController is currently visible 8396 */ 8397 public boolean isShowing(); 8398 8399 /** 8400 * Update the controller's position. 8401 */ 8402 public void updatePosition(HandleView handle, int x, int y); 8403 8404 public void updatePosition(); 8405 8406 /** 8407 * This method is called by {@link #onTouchEvent(MotionEvent)} and gives the controller 8408 * a chance to become active and/or visible. 8409 * @param event The touch event 8410 */ 8411 public boolean onTouchEvent(MotionEvent event); 8412 8413 /** 8414 * Called when the view is detached from window. Perform house keeping task, such as 8415 * stopping Runnable thread that would otherwise keep a reference on the context, thus 8416 * preventing the activity to be recycled. 8417 */ 8418 public void onDetached(); 8419 } 8420 8421 private class PastePopupMenu implements OnClickListener { 8422 private PopupWindow mContainer; 8423 private int mPositionX; 8424 private int mPositionY; 8425 private View mPasteView, mNoPasteView; 8426 8427 public PastePopupMenu() { 8428 mContainer = new PopupWindow(TextView.this.mContext, null, 8429 com.android.internal.R.attr.textSelectHandleWindowStyle); 8430 mContainer.setSplitTouchEnabled(true); 8431 mContainer.setClippingEnabled(false); 8432 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8433 8434 mContainer.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 8435 mContainer.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 8436 } 8437 8438 private void updateContent() { 8439 View view = canPaste() ? mPasteView : mNoPasteView; 8440 8441 if (view == null) { 8442 final int layout = canPaste() ? mTextEditPasteWindowLayout : 8443 mTextEditNoPasteWindowLayout; 8444 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 8445 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 8446 if (inflater != null) { 8447 view = inflater.inflate(layout, null); 8448 } 8449 8450 if (view == null) { 8451 throw new IllegalArgumentException("Unable to inflate TextEdit paste window"); 8452 } 8453 8454 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8455 view.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 8456 ViewGroup.LayoutParams.WRAP_CONTENT)); 8457 view.measure(size, size); 8458 8459 view.setOnClickListener(this); 8460 8461 if (canPaste()) mPasteView = view; 8462 else mNoPasteView = view; 8463 } 8464 8465 mContainer.setContentView(view); 8466 } 8467 8468 public void show() { 8469 updateContent(); 8470 final int[] coords = mTempCoords; 8471 TextView.this.getLocationInWindow(coords); 8472 positionAtCursor(); 8473 coords[0] += mPositionX; 8474 coords[1] += mPositionY; 8475 coords[0] = Math.max(0, coords[0]); 8476 final int screenWidth = mContext.getResources().getDisplayMetrics().widthPixels; 8477 coords[0] = Math.min(screenWidth - mContainer.getContentView().getMeasuredWidth(), 8478 coords[0]); 8479 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, coords[0], coords[1]); 8480 } 8481 8482 public void hide() { 8483 mContainer.dismiss(); 8484 } 8485 8486 public boolean isShowing() { 8487 return mContainer.isShowing(); 8488 } 8489 8490 @Override 8491 public void onClick(View v) { 8492 if (canPaste()) { 8493 paste(getSelectionStart(), getSelectionEnd()); 8494 } 8495 hide(); 8496 } 8497 8498 void positionAtCursor() { 8499 final int offset = TextView.this.getSelectionStart(); 8500 View contentView = mContainer.getContentView(); 8501 final int width = contentView.getMeasuredWidth(); 8502 final int height = contentView.getMeasuredHeight(); 8503 final int line = mLayout.getLineForOffset(offset); 8504 final int lineTop = mLayout.getLineTop(line); 8505 8506 final Rect bounds = sCursorControllerTempRect; 8507 bounds.left = (int) (mLayout.getPrimaryHorizontal(offset) - width / 2.0f); 8508 bounds.top = lineTop - height; 8509 8510 bounds.right = bounds.left + width; 8511 bounds.bottom = bounds.top + height; 8512 8513 convertFromViewportToContentCoordinates(bounds); 8514 8515 mPositionX = bounds.left; 8516 mPositionY = bounds.top; 8517 } 8518 } 8519 8520 private class HandleView extends View { 8521 private boolean mPositionOnTop = false; 8522 private Drawable mDrawable; 8523 private PopupWindow mContainer; 8524 private int mPositionX; 8525 private int mPositionY; 8526 private CursorController mController; 8527 private boolean mIsDragging; 8528 private float mTouchToWindowOffsetX; 8529 private float mTouchToWindowOffsetY; 8530 private float mHotspotX; 8531 private float mHotspotY; 8532 private int mHeight; 8533 private float mTouchOffsetY; 8534 private int mLastParentX; 8535 private int mLastParentY; 8536 private float mDownPositionX, mDownPositionY; 8537 private int mContainerPositionX, mContainerPositionY; 8538 private long mTouchTimer; 8539 private boolean mIsInsertionHandle = false; 8540 private PastePopupMenu mPastePopupWindow; 8541 private Runnable mLongPressCallback; 8542 8543 public static final int LEFT = 0; 8544 public static final int CENTER = 1; 8545 public static final int RIGHT = 2; 8546 8547 public HandleView(CursorController controller, int pos) { 8548 super(TextView.this.mContext); 8549 mController = controller; 8550 mContainer = new PopupWindow(TextView.this.mContext, null, 8551 com.android.internal.R.attr.textSelectHandleWindowStyle); 8552 mContainer.setSplitTouchEnabled(true); 8553 mContainer.setClippingEnabled(false); 8554 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8555 8556 setOrientation(pos); 8557 } 8558 8559 public void setOrientation(int pos) { 8560 int handleWidth; 8561 switch (pos) { 8562 case LEFT: { 8563 if (mSelectHandleLeft == null) { 8564 mSelectHandleLeft = mContext.getResources().getDrawable( 8565 mTextSelectHandleLeftRes); 8566 } 8567 mDrawable = mSelectHandleLeft; 8568 handleWidth = mDrawable.getIntrinsicWidth(); 8569 mHotspotX = (handleWidth * 3) / 4; 8570 break; 8571 } 8572 8573 case RIGHT: { 8574 if (mSelectHandleRight == null) { 8575 mSelectHandleRight = mContext.getResources().getDrawable( 8576 mTextSelectHandleRightRes); 8577 } 8578 mDrawable = mSelectHandleRight; 8579 handleWidth = mDrawable.getIntrinsicWidth(); 8580 mHotspotX = handleWidth / 4; 8581 break; 8582 } 8583 8584 case CENTER: 8585 default: { 8586 if (mSelectHandleCenter == null) { 8587 mSelectHandleCenter = mContext.getResources().getDrawable( 8588 mTextSelectHandleRes); 8589 } 8590 mDrawable = mSelectHandleCenter; 8591 handleWidth = mDrawable.getIntrinsicWidth(); 8592 mHotspotX = handleWidth / 2; 8593 mIsInsertionHandle = true; 8594 break; 8595 } 8596 } 8597 8598 final int handleHeight = mDrawable.getIntrinsicHeight(); 8599 8600 mTouchOffsetY = -handleHeight * 0.3f; 8601 mHotspotY = 0; 8602 mHeight = handleHeight; 8603 invalidate(); 8604 } 8605 8606 @Override 8607 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 8608 setMeasuredDimension(mDrawable.getIntrinsicWidth(), 8609 mDrawable.getIntrinsicHeight()); 8610 } 8611 8612 public void show() { 8613 if (!isPositionVisible()) { 8614 hide(); 8615 return; 8616 } 8617 mContainer.setContentView(this); 8618 final int[] coords = mTempCoords; 8619 TextView.this.getLocationInWindow(coords); 8620 mContainerPositionX = coords[0] + mPositionX; 8621 mContainerPositionY = coords[1] + mPositionY; 8622 mContainer.showAtLocation(TextView.this, 0, mContainerPositionX, mContainerPositionY); 8623 8624 // Hide paste view when handle is moved on screen. 8625 if (mPastePopupWindow != null) { 8626 mPastePopupWindow.hide(); 8627 } 8628 } 8629 8630 public void hide() { 8631 mIsDragging = false; 8632 mContainer.dismiss(); 8633 if (mPastePopupWindow != null) { 8634 mPastePopupWindow.hide(); 8635 } 8636 } 8637 8638 public boolean isShowing() { 8639 return mContainer.isShowing(); 8640 } 8641 8642 private boolean isPositionVisible() { 8643 // Always show a dragging handle. 8644 if (mIsDragging) { 8645 return true; 8646 } 8647 8648 if (isInBatchEditMode()) { 8649 return false; 8650 } 8651 8652 final int extendedPaddingTop = getExtendedPaddingTop(); 8653 final int extendedPaddingBottom = getExtendedPaddingBottom(); 8654 final int compoundPaddingLeft = getCompoundPaddingLeft(); 8655 final int compoundPaddingRight = getCompoundPaddingRight(); 8656 8657 final TextView hostView = TextView.this; 8658 final int left = 0; 8659 final int right = hostView.getWidth(); 8660 final int top = 0; 8661 final int bottom = hostView.getHeight(); 8662 8663 if (mTempRect == null) { 8664 mTempRect = new Rect(); 8665 } 8666 final Rect clip = mTempRect; 8667 clip.left = left + compoundPaddingLeft; 8668 clip.top = top + extendedPaddingTop; 8669 clip.right = right - compoundPaddingRight; 8670 clip.bottom = bottom - extendedPaddingBottom; 8671 8672 final ViewParent parent = hostView.getParent(); 8673 if (parent == null || !parent.getChildVisibleRect(hostView, clip, null)) { 8674 return false; 8675 } 8676 8677 final int[] coords = mTempCoords; 8678 hostView.getLocationInWindow(coords); 8679 final int posX = coords[0] + mPositionX + (int) mHotspotX; 8680 final int posY = coords[1] + mPositionY + (int) mHotspotY; 8681 8682 return posX >= clip.left && posX <= clip.right && 8683 posY >= clip.top && posY <= clip.bottom; 8684 } 8685 8686 private void moveTo(int x, int y) { 8687 mPositionX = x - TextView.this.mScrollX; 8688 mPositionY = y - TextView.this.mScrollY; 8689 if (isPositionVisible()) { 8690 int[] coords = null; 8691 if (mContainer.isShowing()) { 8692 coords = mTempCoords; 8693 TextView.this.getLocationInWindow(coords); 8694 final int containerPositionX = coords[0] + mPositionX; 8695 final int containerPositionY = coords[1] + mPositionY; 8696 8697 if (containerPositionX != mContainerPositionX || 8698 containerPositionY != mContainerPositionY) { 8699 mContainerPositionX = containerPositionX; 8700 mContainerPositionY = containerPositionY; 8701 8702 mContainer.update(mContainerPositionX, mContainerPositionY, 8703 mRight - mLeft, mBottom - mTop); 8704 8705 // Hide paste popup window as soon as a scroll occurs. 8706 if (mPastePopupWindow != null) { 8707 mPastePopupWindow.hide(); 8708 } 8709 } 8710 } else { 8711 show(); 8712 } 8713 8714 if (mIsDragging) { 8715 if (coords == null) { 8716 coords = mTempCoords; 8717 TextView.this.getLocationInWindow(coords); 8718 } 8719 if (coords[0] != mLastParentX || coords[1] != mLastParentY) { 8720 mTouchToWindowOffsetX += coords[0] - mLastParentX; 8721 mTouchToWindowOffsetY += coords[1] - mLastParentY; 8722 mLastParentX = coords[0]; 8723 mLastParentY = coords[1]; 8724 } 8725 // Hide paste popup window as soon as the handle is dragged. 8726 if (mPastePopupWindow != null) { 8727 mPastePopupWindow.hide(); 8728 } 8729 } 8730 } else { 8731 hide(); 8732 } 8733 } 8734 8735 @Override 8736 protected void onDraw(Canvas c) { 8737 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 8738 if (mPositionOnTop) { 8739 c.save(); 8740 c.rotate(180, (mRight - mLeft) / 2, (mBottom - mTop) / 2); 8741 mDrawable.draw(c); 8742 c.restore(); 8743 } else { 8744 mDrawable.draw(c); 8745 } 8746 } 8747 8748 @Override 8749 public boolean onTouchEvent(MotionEvent ev) { 8750 switch (ev.getActionMasked()) { 8751 case MotionEvent.ACTION_DOWN: { 8752 mDownPositionX = ev.getRawX(); 8753 mDownPositionY = ev.getRawY(); 8754 mTouchToWindowOffsetX = mDownPositionX - mPositionX; 8755 mTouchToWindowOffsetY = mDownPositionY - mPositionY; 8756 final int[] coords = mTempCoords; 8757 TextView.this.getLocationInWindow(coords); 8758 mLastParentX = coords[0]; 8759 mLastParentY = coords[1]; 8760 mIsDragging = true; 8761 if (mIsInsertionHandle) { 8762 mTouchTimer = SystemClock.uptimeMillis(); 8763 if (mLongPressCallback == null) { 8764 mLongPressCallback = new Runnable() { 8765 public void run() { 8766 mController.hide(); 8767 startSelectionActionMode(); 8768 } 8769 }; 8770 } 8771 postDelayed(mLongPressCallback, ViewConfiguration.getLongPressTimeout()); 8772 } 8773 break; 8774 } 8775 8776 case MotionEvent.ACTION_MOVE: { 8777 final float rawX = ev.getRawX(); 8778 final float rawY = ev.getRawY(); 8779 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 8780 final float newPosY = rawY - mTouchToWindowOffsetY + mHotspotY + mTouchOffsetY; 8781 8782 mController.updatePosition(this, Math.round(newPosX), Math.round(newPosY)); 8783 8784 if (mIsInsertionHandle) { 8785 final float dx = rawX - mDownPositionX; 8786 final float dy = rawY - mDownPositionY; 8787 final float distanceSquared = dx * dx + dy * dy; 8788 if (distanceSquared >= mSquaredTouchSlopDistance) { 8789 removeLongPressCallback(); 8790 } 8791 } 8792 break; 8793 } 8794 8795 case MotionEvent.ACTION_UP: 8796 if (mIsInsertionHandle) { 8797 removeLongPressCallback(); 8798 long delay = SystemClock.uptimeMillis() - mTouchTimer; 8799 if (delay < ViewConfiguration.getTapTimeout()) { 8800 if (mPastePopupWindow != null && mPastePopupWindow.isShowing()) { 8801 // Tapping on the handle dismisses the displayed paste view, 8802 mPastePopupWindow.hide(); 8803 } else { 8804 ((InsertionPointCursorController) mController).show(0); 8805 } 8806 } 8807 } 8808 mIsDragging = false; 8809 break; 8810 8811 case MotionEvent.ACTION_CANCEL: 8812 if (mIsInsertionHandle) { 8813 removeLongPressCallback(); 8814 } 8815 mIsDragging = false; 8816 } 8817 return true; 8818 } 8819 8820 public boolean isDragging() { 8821 return mIsDragging; 8822 } 8823 8824 void positionAtCursor(final int offset, boolean bottom) { 8825 final int width = mDrawable.getIntrinsicWidth(); 8826 final int height = mDrawable.getIntrinsicHeight(); 8827 final int line = mLayout.getLineForOffset(offset); 8828 final int lineTop = mLayout.getLineTop(line); 8829 final int lineBottom = mLayout.getLineBottom(line); 8830 8831 final Rect bounds = sCursorControllerTempRect; 8832 bounds.left = (int) (mLayout.getPrimaryHorizontal(offset) - mHotspotX) 8833 + TextView.this.mScrollX; 8834 bounds.top = (bottom ? lineBottom : lineTop - mHeight) + TextView.this.mScrollY; 8835 8836 bounds.right = bounds.left + width; 8837 bounds.bottom = bounds.top + height; 8838 8839 convertFromViewportToContentCoordinates(bounds); 8840 moveTo(bounds.left, bounds.top); 8841 } 8842 8843 void showPastePopupWindow() { 8844 if (mIsInsertionHandle) { 8845 if (mPastePopupWindow == null) { 8846 // Lazy initialisation: create when actually shown only. 8847 mPastePopupWindow = new PastePopupMenu(); 8848 } 8849 mPastePopupWindow.show(); 8850 } 8851 } 8852 8853 private void removeLongPressCallback() { 8854 if (mLongPressCallback != null) { 8855 removeCallbacks(mLongPressCallback); 8856 } 8857 } 8858 8859 void onDetached() { 8860 removeLongPressCallback(); 8861 } 8862 } 8863 8864 private class InsertionPointCursorController implements CursorController { 8865 private static final int DELAY_BEFORE_FADE_OUT = 4100; 8866 private static final int DELAY_BEFORE_PASTE = 2000; 8867 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; 8868 8869 // The cursor controller image. Lazily created. 8870 private HandleView mHandle; 8871 private Runnable mHider; 8872 private Runnable mPastePopupShower; 8873 8874 public void show() { 8875 show(DELAY_BEFORE_PASTE); 8876 } 8877 8878 public void show(int delayBeforePaste) { 8879 updatePosition(); 8880 hideDelayed(); 8881 getHandle().show(); 8882 removePastePopupCallback(); 8883 if (canPaste()) { 8884 final long durationSinceCutOrCopy = SystemClock.uptimeMillis() - sLastCutOrCopyTime; 8885 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 8886 delayBeforePaste = 0; 8887 } 8888 if (mPastePopupShower == null) { 8889 mPastePopupShower = new Runnable() { 8890 public void run() { 8891 getHandle().showPastePopupWindow(); 8892 } 8893 }; 8894 } 8895 postDelayed(mPastePopupShower, delayBeforePaste); 8896 } 8897 } 8898 8899 private void removePastePopupCallback() { 8900 if (mPastePopupShower != null) { 8901 removeCallbacks(mPastePopupShower); 8902 } 8903 } 8904 8905 private void removeHiderCallback() { 8906 if (mHider != null) { 8907 removeCallbacks(mHider); 8908 } 8909 } 8910 8911 public void hide() { 8912 if (mHandle != null) { 8913 mHandle.hide(); 8914 } 8915 removeHiderCallback(); 8916 removePastePopupCallback(); 8917 } 8918 8919 private void hideDelayed() { 8920 removeHiderCallback(); 8921 if (mHider == null) { 8922 mHider = new Runnable() { 8923 public void run() { 8924 hide(); 8925 } 8926 }; 8927 } 8928 postDelayed(mHider, DELAY_BEFORE_FADE_OUT); 8929 } 8930 8931 public boolean isShowing() { 8932 return mHandle != null && mHandle.isShowing(); 8933 } 8934 8935 public void updatePosition(HandleView handle, int x, int y) { 8936 final int previousOffset = getSelectionStart(); 8937 int offset = getHysteresisOffset(x, y, previousOffset); 8938 8939 if (offset != previousOffset) { 8940 Selection.setSelection((Spannable) mText, offset); 8941 updatePosition(); 8942 } 8943 hideDelayed(); 8944 } 8945 8946 public void updatePosition() { 8947 final int offset = getSelectionStart(); 8948 8949 if (offset < 0) { 8950 // Should never happen, safety check. 8951 Log.w(LOG_TAG, "Update cursor controller position called with no cursor"); 8952 hide(); 8953 return; 8954 } 8955 8956 getHandle().positionAtCursor(offset, true); 8957 } 8958 8959 public boolean onTouchEvent(MotionEvent ev) { 8960 return false; 8961 } 8962 8963 public void onTouchModeChanged(boolean isInTouchMode) { 8964 if (!isInTouchMode) { 8965 hide(); 8966 } 8967 } 8968 8969 private HandleView getHandle() { 8970 if (mHandle == null) { 8971 mHandle = new HandleView(this, HandleView.CENTER); 8972 } 8973 return mHandle; 8974 } 8975 8976 @Override 8977 public void onDetached() { 8978 removeHiderCallback(); 8979 removePastePopupCallback(); 8980 if (mHandle != null) { 8981 mHandle.onDetached(); 8982 } 8983 } 8984 } 8985 8986 private class SelectionModifierCursorController implements CursorController { 8987 // The cursor controller images, lazily created when shown. 8988 private HandleView mStartHandle, mEndHandle; 8989 // The offsets of that last touch down event. Remembered to start selection there. 8990 private int mMinTouchOffset, mMaxTouchOffset; 8991 // Whether selection anchors are active 8992 private boolean mIsShowing; 8993 8994 // Double tap detection 8995 private long mPreviousTapUpTime = 0; 8996 private int mPreviousTapPositionX; 8997 private int mPreviousTapPositionY; 8998 8999 SelectionModifierCursorController() { 9000 resetTouchOffsets(); 9001 } 9002 9003 public void show() { 9004 if (isInBatchEditMode()) { 9005 return; 9006 } 9007 9008 // Lazy object creation has to be done before updatePosition() is called. 9009 if (mStartHandle == null) mStartHandle = new HandleView(this, HandleView.LEFT); 9010 if (mEndHandle == null) mEndHandle = new HandleView(this, HandleView.RIGHT); 9011 9012 mIsShowing = true; 9013 updatePosition(); 9014 9015 mStartHandle.show(); 9016 mEndHandle.show(); 9017 9018 hideInsertionPointCursorController(); 9019 } 9020 9021 public void hide() { 9022 if (mStartHandle != null) mStartHandle.hide(); 9023 if (mEndHandle != null) mEndHandle.hide(); 9024 mIsShowing = false; 9025 } 9026 9027 public boolean isShowing() { 9028 return mIsShowing; 9029 } 9030 9031 public void cancelFadeOutAnimation() { 9032 hide(); 9033 } 9034 9035 public void updatePosition(HandleView handle, int x, int y) { 9036 int selectionStart = getSelectionStart(); 9037 int selectionEnd = getSelectionEnd(); 9038 9039 final int previousOffset = handle == mStartHandle ? selectionStart : selectionEnd; 9040 int offset = getHysteresisOffset(x, y, previousOffset); 9041 9042 // Handle the case where start and end are swapped, making sure start <= end 9043 if (handle == mStartHandle) { 9044 if (selectionStart == offset || offset > selectionEnd) { 9045 return; // no change, no need to redraw; 9046 } 9047 // If the user "closes" the selection entirely they were probably trying to 9048 // select a single character. Help them out. 9049 if (offset == selectionEnd) { 9050 offset = selectionEnd - 1; 9051 } 9052 selectionStart = offset; 9053 } else { 9054 if (selectionEnd == offset || offset < selectionStart) { 9055 return; // no change, no need to redraw; 9056 } 9057 // If the user "closes" the selection entirely they were probably trying to 9058 // select a single character. Help them out. 9059 if (offset == selectionStart) { 9060 offset = selectionStart + 1; 9061 } 9062 selectionEnd = offset; 9063 } 9064 9065 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 9066 updatePosition(); 9067 } 9068 9069 public void updatePosition() { 9070 if (!isShowing()) { 9071 return; 9072 } 9073 9074 final int selectionStart = getSelectionStart(); 9075 final int selectionEnd = getSelectionEnd(); 9076 9077 if ((selectionStart < 0) || (selectionEnd < 0)) { 9078 // Should never happen, safety check. 9079 Log.w(LOG_TAG, "Update selection controller position called with no cursor"); 9080 hide(); 9081 return; 9082 } 9083 9084 // The handles have been created since the controller isShowing(). 9085 mStartHandle.positionAtCursor(selectionStart, true); 9086 mEndHandle.positionAtCursor(selectionEnd, true); 9087 } 9088 9089 public boolean onTouchEvent(MotionEvent event) { 9090 // This is done even when the View does not have focus, so that long presses can start 9091 // selection and tap can move cursor from this tap position. 9092 if (isTextEditable() || mTextIsSelectable) { 9093 switch (event.getActionMasked()) { 9094 case MotionEvent.ACTION_DOWN: 9095 final int x = (int) event.getX(); 9096 final int y = (int) event.getY(); 9097 9098 // Remember finger down position, to be able to start selection from there 9099 mMinTouchOffset = mMaxTouchOffset = getOffset(x, y); 9100 9101 // Double tap detection 9102 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 9103 if (duration <= ViewConfiguration.getDoubleTapTimeout() && 9104 isPositionOnText(x, y)) { 9105 final int deltaX = x - mPreviousTapPositionX; 9106 final int deltaY = y - mPreviousTapPositionY; 9107 final int distanceSquared = deltaX * deltaX + deltaY * deltaY; 9108 if (distanceSquared < mSquaredTouchSlopDistance) { 9109 startSelectionActionMode(); 9110 mDiscardNextActionUp = true; 9111 } 9112 } 9113 9114 mPreviousTapPositionX = x; 9115 mPreviousTapPositionY = y; 9116 9117 break; 9118 9119 case MotionEvent.ACTION_POINTER_DOWN: 9120 case MotionEvent.ACTION_POINTER_UP: 9121 // Handle multi-point gestures. Keep min and max offset positions. 9122 // Only activated for devices that correctly handle multi-touch. 9123 if (mContext.getPackageManager().hasSystemFeature( 9124 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 9125 updateMinAndMaxOffsets(event); 9126 } 9127 break; 9128 9129 case MotionEvent.ACTION_UP: 9130 mPreviousTapUpTime = SystemClock.uptimeMillis(); 9131 break; 9132 } 9133 } 9134 return false; 9135 } 9136 9137 /** 9138 * @param event 9139 */ 9140 private void updateMinAndMaxOffsets(MotionEvent event) { 9141 int pointerCount = event.getPointerCount(); 9142 for (int index = 0; index < pointerCount; index++) { 9143 final int x = (int) event.getX(index); 9144 final int y = (int) event.getY(index); 9145 int offset = getOffset(x, y); 9146 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 9147 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 9148 } 9149 } 9150 9151 public int getMinTouchOffset() { 9152 return mMinTouchOffset; 9153 } 9154 9155 public int getMaxTouchOffset() { 9156 return mMaxTouchOffset; 9157 } 9158 9159 public void resetTouchOffsets() { 9160 mMinTouchOffset = mMaxTouchOffset = -1; 9161 } 9162 9163 /** 9164 * @return true iff this controller is currently used to move the selection start. 9165 */ 9166 public boolean isSelectionStartDragged() { 9167 return mStartHandle != null && mStartHandle.isDragging(); 9168 } 9169 9170 public void onTouchModeChanged(boolean isInTouchMode) { 9171 if (!isInTouchMode) { 9172 hide(); 9173 } 9174 } 9175 9176 @Override 9177 public void onDetached() {} 9178 } 9179 9180 private void hideInsertionPointCursorController() { 9181 // No need to create the controller to hide it. 9182 if (mInsertionPointCursorController != null) { 9183 mInsertionPointCursorController.hide(); 9184 } 9185 } 9186 9187 /** 9188 * Hides the insertion controller and stops text selection mode, hiding the selection controller 9189 */ 9190 private void hideControllers() { 9191 hideInsertionPointCursorController(); 9192 stopSelectionActionMode(); 9193 } 9194 9195 /** 9196 * Get the offset character closest to the specified absolute position. 9197 * 9198 * @param x The horizontal absolute position of a point on screen 9199 * @param y The vertical absolute position of a point on screen 9200 * @return the character offset for the character whose position is closest to the specified 9201 * position. Returns -1 if there is no layout. 9202 * 9203 * @hide 9204 */ 9205 public int getOffset(int x, int y) { 9206 if (getLayout() == null) return -1; 9207 final int line = getLineAtCoordinate(y); 9208 final int offset = getOffsetAtCoordinate(line, x); 9209 return offset; 9210 } 9211 9212 int getHysteresisOffset(int x, int y, int previousOffset) { 9213 final Layout layout = getLayout(); 9214 if (layout == null) return -1; 9215 9216 int line = getLineAtCoordinate(y); 9217 final int previousLine = layout.getLineForOffset(previousOffset); 9218 final int previousLineTop = layout.getLineTop(previousLine); 9219 final int previousLineBottom = layout.getLineBottom(previousLine); 9220 final int hysteresisThreshold = (previousLineBottom - previousLineTop) / 8; 9221 9222 // If new line is just before or after previous line and y position is less than 9223 // hysteresisThreshold away from previous line, keep cursor on previous line. 9224 if (((line == previousLine + 1) && ((y - previousLineBottom) < hysteresisThreshold)) || 9225 ((line == previousLine - 1) && ((previousLineTop - y) < hysteresisThreshold))) { 9226 line = previousLine; 9227 } 9228 9229 return getOffsetAtCoordinate(line, x); 9230 } 9231 9232 private int convertToLocalHorizontalCoordinate(int x) { 9233 x -= getTotalPaddingLeft(); 9234 // Clamp the position to inside of the view. 9235 x = Math.max(0, x); 9236 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 9237 x += getScrollX(); 9238 return x; 9239 } 9240 9241 private int getLineAtCoordinate(int y) { 9242 y -= getTotalPaddingTop(); 9243 // Clamp the position to inside of the view. 9244 y = Math.max(0, y); 9245 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 9246 y += getScrollY(); 9247 return getLayout().getLineForVertical(y); 9248 } 9249 9250 private int getOffsetAtCoordinate(int line, int x) { 9251 x = convertToLocalHorizontalCoordinate(x); 9252 return getLayout().getOffsetForHorizontal(line, x); 9253 } 9254 9255 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 9256 * in the view. Returns false when the position is in the empty space of left/right of text. 9257 */ 9258 private boolean isPositionOnText(int x, int y) { 9259 if (getLayout() == null) return false; 9260 9261 final int line = getLineAtCoordinate(y); 9262 x = convertToLocalHorizontalCoordinate(x); 9263 9264 if (x < getLayout().getLineLeft(line)) return false; 9265 if (x > getLayout().getLineRight(line)) return false; 9266 return true; 9267 } 9268 9269 @Override 9270 public boolean onDragEvent(DragEvent event) { 9271 switch (event.getAction()) { 9272 case DragEvent.ACTION_DRAG_STARTED: 9273 return hasInsertionController(); 9274 9275 case DragEvent.ACTION_DRAG_ENTERED: 9276 TextView.this.requestFocus(); 9277 return true; 9278 9279 case DragEvent.ACTION_DRAG_LOCATION: 9280 final int offset = getOffset((int) event.getX(), (int) event.getY()); 9281 Selection.setSelection((Spannable)mText, offset); 9282 return true; 9283 9284 case DragEvent.ACTION_DROP: 9285 onDrop(event); 9286 return true; 9287 9288 case DragEvent.ACTION_DRAG_ENDED: 9289 case DragEvent.ACTION_DRAG_EXITED: 9290 default: 9291 return true; 9292 } 9293 } 9294 9295 private void onDrop(DragEvent event) { 9296 StringBuilder content = new StringBuilder(""); 9297 ClipData clipData = event.getClipData(); 9298 final int itemCount = clipData.getItemCount(); 9299 for (int i=0; i < itemCount; i++) { 9300 Item item = clipData.getItem(i); 9301 content.append(item.coerceToText(TextView.this.mContext)); 9302 } 9303 9304 final int offset = getOffset((int) event.getX(), (int) event.getY()); 9305 9306 Object localState = event.getLocalState(); 9307 DragLocalState dragLocalState = null; 9308 if (localState instanceof DragLocalState) { 9309 dragLocalState = (DragLocalState) localState; 9310 } 9311 boolean dragDropIntoItself = dragLocalState != null && 9312 dragLocalState.sourceTextView == this; 9313 9314 if (dragDropIntoItself) { 9315 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 9316 // A drop inside the original selection discards the drop. 9317 return; 9318 } 9319 } 9320 9321 final int originalLength = mText.length(); 9322 long minMax = prepareSpacesAroundPaste(offset, offset, content); 9323 int min = extractRangeStartFromLong(minMax); 9324 int max = extractRangeEndFromLong(minMax); 9325 9326 Selection.setSelection((Spannable) mText, max); 9327 ((Editable) mText).replace(min, max, content); 9328 9329 if (dragDropIntoItself) { 9330 int dragSourceStart = dragLocalState.start; 9331 int dragSourceEnd = dragLocalState.end; 9332 if (max <= dragSourceStart) { 9333 // Inserting text before selection has shifted positions 9334 final int shift = mText.length() - originalLength; 9335 dragSourceStart += shift; 9336 dragSourceEnd += shift; 9337 } 9338 9339 // Delete original selection 9340 ((Editable) mText).delete(dragSourceStart, dragSourceEnd); 9341 9342 // Make sure we do not leave two adjacent spaces. 9343 if ((dragSourceStart == 0 || 9344 Character.isSpaceChar(mTransformed.charAt(dragSourceStart - 1))) && 9345 (dragSourceStart == mText.length() || 9346 Character.isSpaceChar(mTransformed.charAt(dragSourceStart)))) { 9347 final int pos = dragSourceStart == mText.length() ? 9348 dragSourceStart - 1 : dragSourceStart; 9349 ((Editable) mText).delete(pos, pos + 1); 9350 } 9351 } 9352 } 9353 9354 /** 9355 * @return True if this view supports insertion handles. 9356 */ 9357 boolean hasInsertionController() { 9358 return mInsertionControllerEnabled; 9359 } 9360 9361 /** 9362 * @return True if this view supports selection handles. 9363 */ 9364 boolean hasSelectionController() { 9365 return mSelectionControllerEnabled; 9366 } 9367 9368 InsertionPointCursorController getInsertionController() { 9369 if (!mInsertionControllerEnabled) { 9370 return null; 9371 } 9372 9373 if (mInsertionPointCursorController == null) { 9374 mInsertionPointCursorController = new InsertionPointCursorController(); 9375 9376 final ViewTreeObserver observer = getViewTreeObserver(); 9377 if (observer != null) { 9378 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 9379 } 9380 } 9381 9382 return mInsertionPointCursorController; 9383 } 9384 9385 SelectionModifierCursorController getSelectionController() { 9386 if (!mSelectionControllerEnabled) { 9387 return null; 9388 } 9389 9390 if (mSelectionModifierCursorController == null) { 9391 mSelectionModifierCursorController = new SelectionModifierCursorController(); 9392 9393 final ViewTreeObserver observer = getViewTreeObserver(); 9394 if (observer != null) { 9395 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 9396 } 9397 } 9398 9399 return mSelectionModifierCursorController; 9400 } 9401 9402 boolean isInBatchEditMode() { 9403 final InputMethodState ims = mInputMethodState; 9404 if (ims != null) { 9405 return ims.mBatchEditNesting > 0; 9406 } 9407 return mInBatchEditControllers; 9408 } 9409 9410 @ViewDebug.ExportedProperty(category = "text") 9411 private CharSequence mText; 9412 private CharSequence mTransformed; 9413 private BufferType mBufferType = BufferType.NORMAL; 9414 9415 private int mInputType = EditorInfo.TYPE_NULL; 9416 private CharSequence mHint; 9417 private Layout mHintLayout; 9418 9419 private KeyListener mInput; 9420 9421 private MovementMethod mMovement; 9422 private TransformationMethod mTransformation; 9423 private ChangeWatcher mChangeWatcher; 9424 9425 private ArrayList<TextWatcher> mListeners = null; 9426 9427 // display attributes 9428 private final TextPaint mTextPaint; 9429 private boolean mUserSetTextScaleX; 9430 private final Paint mHighlightPaint; 9431 private int mHighlightColor = 0xCC475925; 9432 /** 9433 * This is temporarily visible to fix bug 3085564 in webView. Do not rely on 9434 * this field being protected. Will be restored as private when lineHeight 9435 * feature request 3215097 is implemented 9436 * @hide 9437 */ 9438 protected Layout mLayout; 9439 9440 private long mShowCursor; 9441 private Blink mBlink; 9442 private boolean mCursorVisible = true; 9443 9444 // Cursor Controllers. 9445 private InsertionPointCursorController mInsertionPointCursorController; 9446 private SelectionModifierCursorController mSelectionModifierCursorController; 9447 private ActionMode mSelectionActionMode; 9448 private boolean mInsertionControllerEnabled; 9449 private boolean mSelectionControllerEnabled; 9450 private boolean mInBatchEditControllers; 9451 9452 // These are needed to desambiguate a long click. If the long click comes from ones of these, we 9453 // select from the current cursor position. Otherwise, select from long pressed position. 9454 private boolean mDPadCenterIsDown = false; 9455 private boolean mEnterKeyIsDown = false; 9456 private boolean mContextMenuTriggeredByKey = false; 9457 // Created once and shared by different CursorController helper methods. 9458 // Only one cursor controller is active at any time which prevent race conditions. 9459 private static Rect sCursorControllerTempRect = new Rect(); 9460 9461 private boolean mSelectAllOnFocus = false; 9462 9463 private int mGravity = Gravity.TOP | Gravity.LEFT; 9464 private boolean mHorizontallyScrolling; 9465 9466 private int mAutoLinkMask; 9467 private boolean mLinksClickable = true; 9468 9469 private float mSpacingMult = 1; 9470 private float mSpacingAdd = 0; 9471 private boolean mTextIsSelectable = false; 9472 9473 private static final int LINES = 1; 9474 private static final int EMS = LINES; 9475 private static final int PIXELS = 2; 9476 9477 private int mMaximum = Integer.MAX_VALUE; 9478 private int mMaxMode = LINES; 9479 private int mMinimum = 0; 9480 private int mMinMode = LINES; 9481 9482 private int mMaxWidth = Integer.MAX_VALUE; 9483 private int mMaxWidthMode = PIXELS; 9484 private int mMinWidth = 0; 9485 private int mMinWidthMode = PIXELS; 9486 9487 private boolean mSingleLine; 9488 private int mDesiredHeightAtMeasure = -1; 9489 private boolean mIncludePad = true; 9490 9491 // tmp primitives, so we don't alloc them on each draw 9492 private Path mHighlightPath; 9493 private boolean mHighlightPathBogus = true; 9494 private static final RectF sTempRect = new RectF(); 9495 9496 // XXX should be much larger 9497 private static final int VERY_WIDE = 16384; 9498 9499 private static final int BLINK = 500; 9500 9501 private static final int ANIMATED_SCROLL_GAP = 250; 9502 private long mLastScroll; 9503 private Scroller mScroller = null; 9504 9505 private BoringLayout.Metrics mBoring; 9506 private BoringLayout.Metrics mHintBoring; 9507 9508 private BoringLayout mSavedLayout, mSavedHintLayout; 9509 9510 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 9511 private InputFilter[] mFilters = NO_FILTERS; 9512 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 9513 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 9514 // System wide time for last cut or copy action. 9515 private static long sLastCutOrCopyTime; 9516 // Used to highlight a word when it is corrected by the IME 9517 private CorrectionHighlighter mCorrectionHighlighter; 9518 // New state used to change background based on whether this TextView is multiline. 9519 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 9520} 9521