TextView.java revision aa8d73bfc32eae0340ba5236f3580d88558359ab
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; 4139 4140 if (mSingleLine) { 4141 drawableState = super.onCreateDrawableState(extraSpace); 4142 } else { 4143 drawableState = super.onCreateDrawableState(extraSpace + 1); 4144 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 4145 } 4146 4147 if (mTextIsSelectable) { 4148 // Disable pressed state, which was introduced when TextView was made clickable. 4149 // Prevents text color change. 4150 // setClickable(false) would have a similar effect, but it also disables focus changes 4151 // and long press actions, which are both needed by text selection. 4152 final int length = drawableState.length; 4153 for (int i = 0; i < length; i++) { 4154 if (drawableState[i] == R.attr.state_pressed) { 4155 final int[] nonPressedState = new int[length - 1]; 4156 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 4157 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 4158 return nonPressedState; 4159 } 4160 } 4161 } 4162 4163 return drawableState; 4164 } 4165 4166 @Override 4167 protected void onDraw(Canvas canvas) { 4168 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return; 4169 4170 restartMarqueeIfNeeded(); 4171 4172 // Draw the background for this view 4173 super.onDraw(canvas); 4174 4175 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4176 final int compoundPaddingTop = getCompoundPaddingTop(); 4177 final int compoundPaddingRight = getCompoundPaddingRight(); 4178 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4179 final int scrollX = mScrollX; 4180 final int scrollY = mScrollY; 4181 final int right = mRight; 4182 final int left = mLeft; 4183 final int bottom = mBottom; 4184 final int top = mTop; 4185 4186 final Drawables dr = mDrawables; 4187 if (dr != null) { 4188 /* 4189 * Compound, not extended, because the icon is not clipped 4190 * if the text height is smaller. 4191 */ 4192 4193 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 4194 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 4195 4196 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4197 // Make sure to update invalidateDrawable() when changing this code. 4198 if (dr.mDrawableLeft != null) { 4199 canvas.save(); 4200 canvas.translate(scrollX + mPaddingLeft, 4201 scrollY + compoundPaddingTop + 4202 (vspace - dr.mDrawableHeightLeft) / 2); 4203 dr.mDrawableLeft.draw(canvas); 4204 canvas.restore(); 4205 } 4206 4207 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4208 // Make sure to update invalidateDrawable() when changing this code. 4209 if (dr.mDrawableRight != null) { 4210 canvas.save(); 4211 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 4212 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 4213 dr.mDrawableRight.draw(canvas); 4214 canvas.restore(); 4215 } 4216 4217 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4218 // Make sure to update invalidateDrawable() when changing this code. 4219 if (dr.mDrawableTop != null) { 4220 canvas.save(); 4221 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 4222 scrollY + mPaddingTop); 4223 dr.mDrawableTop.draw(canvas); 4224 canvas.restore(); 4225 } 4226 4227 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4228 // Make sure to update invalidateDrawable() when changing this code. 4229 if (dr.mDrawableBottom != null) { 4230 canvas.save(); 4231 canvas.translate(scrollX + compoundPaddingLeft + 4232 (hspace - dr.mDrawableWidthBottom) / 2, 4233 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 4234 dr.mDrawableBottom.draw(canvas); 4235 canvas.restore(); 4236 } 4237 } 4238 4239 if (mPreDrawState == PREDRAW_DONE) { 4240 final ViewTreeObserver observer = getViewTreeObserver(); 4241 if (observer != null) { 4242 observer.removeOnPreDrawListener(this); 4243 mPreDrawState = PREDRAW_NOT_REGISTERED; 4244 } 4245 } 4246 4247 int color = mCurTextColor; 4248 4249 if (mLayout == null) { 4250 assumeLayout(); 4251 } 4252 4253 Layout layout = mLayout; 4254 int cursorcolor = color; 4255 4256 if (mHint != null && mText.length() == 0) { 4257 if (mHintTextColor != null) { 4258 color = mCurHintTextColor; 4259 } 4260 4261 layout = mHintLayout; 4262 } 4263 4264 mTextPaint.setColor(color); 4265 if (mCurrentAlpha != 255) { 4266 // If set, the alpha will override the color's alpha. Multiply the alphas. 4267 mTextPaint.setAlpha((mCurrentAlpha * Color.alpha(color)) / 255); 4268 } 4269 mTextPaint.drawableState = getDrawableState(); 4270 4271 canvas.save(); 4272 /* Would be faster if we didn't have to do this. Can we chop the 4273 (displayable) text so that we don't need to do this ever? 4274 */ 4275 4276 int extendedPaddingTop = getExtendedPaddingTop(); 4277 int extendedPaddingBottom = getExtendedPaddingBottom(); 4278 4279 float clipLeft = compoundPaddingLeft + scrollX; 4280 float clipTop = extendedPaddingTop + scrollY; 4281 float clipRight = right - left - compoundPaddingRight + scrollX; 4282 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 4283 4284 if (mShadowRadius != 0) { 4285 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4286 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4287 4288 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4289 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4290 } 4291 4292 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4293 4294 int voffsetText = 0; 4295 int voffsetCursor = 0; 4296 4297 // translate in by our padding 4298 { 4299 /* shortcircuit calling getVerticaOffset() */ 4300 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4301 voffsetText = getVerticalOffset(false); 4302 voffsetCursor = getVerticalOffset(true); 4303 } 4304 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4305 } 4306 4307 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4308 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4309 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4310 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4311 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4312 } 4313 4314 if (mMarquee != null && mMarquee.isRunning()) { 4315 canvas.translate(-mMarquee.mScroll, 0.0f); 4316 } 4317 } 4318 4319 Path highlight = null; 4320 int selStart = -1, selEnd = -1; 4321 4322 // If there is no movement method, then there can be no selection. 4323 // Check that first and attempt to skip everything having to do with 4324 // the cursor. 4325 // XXX This is not strictly true -- a program could set the 4326 // selection manually if it really wanted to. 4327 if (mMovement != null && (isFocused() || isPressed())) { 4328 selStart = getSelectionStart(); 4329 selEnd = getSelectionEnd(); 4330 4331 if ((mCursorVisible || mTextIsSelectable) && selStart >= 0 && isEnabled()) { 4332 if (mHighlightPath == null) 4333 mHighlightPath = new Path(); 4334 4335 if (selStart == selEnd) { 4336 if (!mTextIsSelectable && 4337 (SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 4338 if (mHighlightPathBogus) { 4339 mHighlightPath.reset(); 4340 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4341 mHighlightPathBogus = false; 4342 } 4343 4344 // XXX should pass to skin instead of drawing directly 4345 mHighlightPaint.setColor(cursorcolor); 4346 if (mCurrentAlpha != 255) { 4347 mHighlightPaint.setAlpha( 4348 (mCurrentAlpha * Color.alpha(cursorcolor)) / 255); 4349 } 4350 mHighlightPaint.setStyle(Paint.Style.STROKE); 4351 4352 highlight = mHighlightPath; 4353 } 4354 } else { 4355 if (mHighlightPathBogus) { 4356 mHighlightPath.reset(); 4357 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4358 mHighlightPathBogus = false; 4359 } 4360 4361 // XXX should pass to skin instead of drawing directly 4362 mHighlightPaint.setColor(mHighlightColor); 4363 if (mCurrentAlpha != 255) { 4364 mHighlightPaint.setAlpha( 4365 (mCurrentAlpha * Color.alpha(mHighlightColor)) / 255); 4366 } 4367 mHighlightPaint.setStyle(Paint.Style.FILL); 4368 4369 highlight = mHighlightPath; 4370 } 4371 } 4372 } 4373 4374 /* Comment out until we decide what to do about animations 4375 boolean isLinearTextOn = false; 4376 if (currentTransformation != null) { 4377 isLinearTextOn = mTextPaint.isLinearTextOn(); 4378 Matrix m = currentTransformation.getMatrix(); 4379 if (!m.isIdentity()) { 4380 // mTextPaint.setLinearTextOn(true); 4381 } 4382 } 4383 */ 4384 4385 final InputMethodState ims = mInputMethodState; 4386 final int cursorOffsetVertical = voffsetCursor - voffsetText; 4387 if (ims != null && ims.mBatchEditNesting == 0) { 4388 InputMethodManager imm = InputMethodManager.peekInstance(); 4389 if (imm != null) { 4390 if (imm.isActive(this)) { 4391 boolean reported = false; 4392 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4393 // We are in extract mode and the content has changed 4394 // in some way... just report complete new text to the 4395 // input method. 4396 reported = reportExtractedText(); 4397 } 4398 if (!reported && highlight != null) { 4399 int candStart = -1; 4400 int candEnd = -1; 4401 if (mText instanceof Spannable) { 4402 Spannable sp = (Spannable)mText; 4403 candStart = EditableInputConnection.getComposingSpanStart(sp); 4404 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 4405 } 4406 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 4407 } 4408 } 4409 4410 if (imm.isWatchingCursor(this) && highlight != null) { 4411 highlight.computeBounds(ims.mTmpRectF, true); 4412 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 4413 4414 canvas.getMatrix().mapPoints(ims.mTmpOffset); 4415 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 4416 4417 ims.mTmpRectF.offset(0, cursorOffsetVertical); 4418 4419 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 4420 (int)(ims.mTmpRectF.top + 0.5), 4421 (int)(ims.mTmpRectF.right + 0.5), 4422 (int)(ims.mTmpRectF.bottom + 0.5)); 4423 4424 imm.updateCursor(this, 4425 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 4426 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 4427 } 4428 } 4429 } 4430 4431 if (mCorrectionHighlighter != null) { 4432 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 4433 } 4434 4435 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4436 4437 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 4438 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 4439 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4440 } 4441 4442 /* Comment out until we decide what to do about animations 4443 if (currentTransformation != null) { 4444 mTextPaint.setLinearTextOn(isLinearTextOn); 4445 } 4446 */ 4447 4448 canvas.restore(); 4449 4450 updateCursorControllerPositions(); 4451 } 4452 4453 /** 4454 * Update the positions of the CursorControllers. Needed by WebTextView, 4455 * which does not draw. 4456 * @hide 4457 */ 4458 protected void updateCursorControllerPositions() { 4459 // No need to create the controllers if they were not already 4460 if (mInsertionPointCursorController != null && 4461 mInsertionPointCursorController.isShowing()) { 4462 mInsertionPointCursorController.updatePosition(); 4463 } 4464 if (mSelectionModifierCursorController != null && 4465 mSelectionModifierCursorController.isShowing()) { 4466 mSelectionModifierCursorController.updatePosition(); 4467 } 4468 } 4469 4470 @Override 4471 public void getFocusedRect(Rect r) { 4472 if (mLayout == null) { 4473 super.getFocusedRect(r); 4474 return; 4475 } 4476 4477 int sel = getSelectionEnd(); 4478 if (sel < 0) { 4479 super.getFocusedRect(r); 4480 return; 4481 } 4482 4483 int line = mLayout.getLineForOffset(sel); 4484 r.top = mLayout.getLineTop(line); 4485 r.bottom = mLayout.getLineBottom(line); 4486 4487 r.left = (int) mLayout.getPrimaryHorizontal(sel); 4488 r.right = r.left + 1; 4489 4490 // Adjust for padding and gravity. 4491 int paddingLeft = getCompoundPaddingLeft(); 4492 int paddingTop = getExtendedPaddingTop(); 4493 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4494 paddingTop += getVerticalOffset(false); 4495 } 4496 r.offset(paddingLeft, paddingTop); 4497 } 4498 4499 /** 4500 * Return the number of lines of text, or 0 if the internal Layout has not 4501 * been built. 4502 */ 4503 public int getLineCount() { 4504 return mLayout != null ? mLayout.getLineCount() : 0; 4505 } 4506 4507 /** 4508 * Return the baseline for the specified line (0...getLineCount() - 1) 4509 * If bounds is not null, return the top, left, right, bottom extents 4510 * of the specified line in it. If the internal Layout has not been built, 4511 * return 0 and set bounds to (0, 0, 0, 0) 4512 * @param line which line to examine (0..getLineCount() - 1) 4513 * @param bounds Optional. If not null, it returns the extent of the line 4514 * @return the Y-coordinate of the baseline 4515 */ 4516 public int getLineBounds(int line, Rect bounds) { 4517 if (mLayout == null) { 4518 if (bounds != null) { 4519 bounds.set(0, 0, 0, 0); 4520 } 4521 return 0; 4522 } 4523 else { 4524 int baseline = mLayout.getLineBounds(line, bounds); 4525 4526 int voffset = getExtendedPaddingTop(); 4527 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4528 voffset += getVerticalOffset(true); 4529 } 4530 if (bounds != null) { 4531 bounds.offset(getCompoundPaddingLeft(), voffset); 4532 } 4533 return baseline + voffset; 4534 } 4535 } 4536 4537 @Override 4538 public int getBaseline() { 4539 if (mLayout == null) { 4540 return super.getBaseline(); 4541 } 4542 4543 int voffset = 0; 4544 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4545 voffset = getVerticalOffset(true); 4546 } 4547 4548 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 4549 } 4550 4551 @Override 4552 public boolean onKeyDown(int keyCode, KeyEvent event) { 4553 int which = doKeyDown(keyCode, event, null); 4554 if (which == 0) { 4555 // Go through default dispatching. 4556 return super.onKeyDown(keyCode, event); 4557 } 4558 4559 return true; 4560 } 4561 4562 @Override 4563 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 4564 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 4565 4566 int which = doKeyDown(keyCode, down, event); 4567 if (which == 0) { 4568 // Go through default dispatching. 4569 return super.onKeyMultiple(keyCode, repeatCount, event); 4570 } 4571 if (which == -1) { 4572 // Consumed the whole thing. 4573 return true; 4574 } 4575 4576 repeatCount--; 4577 4578 // We are going to dispatch the remaining events to either the input 4579 // or movement method. To do this, we will just send a repeated stream 4580 // of down and up events until we have done the complete repeatCount. 4581 // It would be nice if those interfaces had an onKeyMultiple() method, 4582 // but adding that is a more complicated change. 4583 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 4584 if (which == 1) { 4585 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4586 while (--repeatCount > 0) { 4587 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 4588 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4589 } 4590 if (mError != null && !mErrorWasChanged) { 4591 setError(null, null); 4592 } 4593 4594 } else if (which == 2) { 4595 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4596 while (--repeatCount > 0) { 4597 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 4598 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4599 } 4600 } 4601 4602 return true; 4603 } 4604 4605 /** 4606 * Returns true if pressing ENTER in this field advances focus instead 4607 * of inserting the character. This is true mostly in single-line fields, 4608 * but also in mail addresses and subjects which will display on multiple 4609 * lines but where it doesn't make sense to insert newlines. 4610 */ 4611 private boolean shouldAdvanceFocusOnEnter() { 4612 if (mInput == null) { 4613 return false; 4614 } 4615 4616 if (mSingleLine) { 4617 return true; 4618 } 4619 4620 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4621 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4622 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 4623 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 4624 return true; 4625 } 4626 } 4627 4628 return false; 4629 } 4630 4631 /** 4632 * Returns true if pressing TAB in this field advances focus instead 4633 * of inserting the character. Insert tabs only in multi-line editors. 4634 */ 4635 private boolean shouldAdvanceFocusOnTab() { 4636 if (mInput != null && !mSingleLine) { 4637 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4638 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4639 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 4640 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 4641 return false; 4642 } 4643 } 4644 } 4645 return true; 4646 } 4647 4648 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 4649 if (!isEnabled()) { 4650 return 0; 4651 } 4652 4653 switch (keyCode) { 4654 case KeyEvent.KEYCODE_ENTER: 4655 mEnterKeyIsDown = true; 4656 if (event.hasNoModifiers()) { 4657 // When mInputContentType is set, we know that we are 4658 // running in a "modern" cupcake environment, so don't need 4659 // to worry about the application trying to capture 4660 // enter key events. 4661 if (mInputContentType != null) { 4662 // If there is an action listener, given them a 4663 // chance to consume the event. 4664 if (mInputContentType.onEditorActionListener != null && 4665 mInputContentType.onEditorActionListener.onEditorAction( 4666 this, EditorInfo.IME_NULL, event)) { 4667 mInputContentType.enterDown = true; 4668 // We are consuming the enter key for them. 4669 return -1; 4670 } 4671 } 4672 4673 // If our editor should move focus when enter is pressed, or 4674 // this is a generated event from an IME action button, then 4675 // don't let it be inserted into the text. 4676 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 4677 || shouldAdvanceFocusOnEnter()) { 4678 if (mOnClickListener != null) { 4679 return 0; 4680 } 4681 return -1; 4682 } 4683 } 4684 break; 4685 4686 case KeyEvent.KEYCODE_DPAD_CENTER: 4687 mDPadCenterIsDown = true; 4688 if (event.hasNoModifiers()) { 4689 if (shouldAdvanceFocusOnEnter()) { 4690 return 0; 4691 } 4692 } 4693 break; 4694 4695 case KeyEvent.KEYCODE_TAB: 4696 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 4697 if (shouldAdvanceFocusOnTab()) { 4698 return 0; 4699 } 4700 } 4701 break; 4702 4703 // Has to be done on key down (and not on key up) to correctly be intercepted. 4704 case KeyEvent.KEYCODE_BACK: 4705 if (mSelectionActionMode != null) { 4706 stopSelectionActionMode(); 4707 return -1; 4708 } 4709 break; 4710 } 4711 4712 if (mInput != null) { 4713 /* 4714 * Keep track of what the error was before doing the input 4715 * so that if an input filter changed the error, we leave 4716 * that error showing. Otherwise, we take down whatever 4717 * error was showing when the user types something. 4718 */ 4719 mErrorWasChanged = false; 4720 4721 boolean doDown = true; 4722 if (otherEvent != null) { 4723 try { 4724 beginBatchEdit(); 4725 boolean handled = mInput.onKeyOther(this, (Editable) mText, 4726 otherEvent); 4727 if (mError != null && !mErrorWasChanged) { 4728 setError(null, null); 4729 } 4730 doDown = false; 4731 if (handled) { 4732 return -1; 4733 } 4734 } catch (AbstractMethodError e) { 4735 // onKeyOther was added after 1.0, so if it isn't 4736 // implemented we need to try to dispatch as a regular down. 4737 } finally { 4738 endBatchEdit(); 4739 } 4740 } 4741 4742 if (doDown) { 4743 beginBatchEdit(); 4744 if (mInput.onKeyDown(this, (Editable) mText, keyCode, event)) { 4745 endBatchEdit(); 4746 if (mError != null && !mErrorWasChanged) { 4747 setError(null, null); 4748 } 4749 return 1; 4750 } 4751 endBatchEdit(); 4752 } 4753 } 4754 4755 // bug 650865: sometimes we get a key event before a layout. 4756 // don't try to move around if we don't know the layout. 4757 4758 if (mMovement != null && mLayout != null) { 4759 boolean doDown = true; 4760 if (otherEvent != null) { 4761 try { 4762 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 4763 otherEvent); 4764 doDown = false; 4765 if (handled) { 4766 return -1; 4767 } 4768 } catch (AbstractMethodError e) { 4769 // onKeyOther was added after 1.0, so if it isn't 4770 // implemented we need to try to dispatch as a regular down. 4771 } 4772 } 4773 if (doDown) { 4774 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 4775 return 2; 4776 } 4777 } 4778 4779 return 0; 4780 } 4781 4782 @Override 4783 public boolean onKeyUp(int keyCode, KeyEvent event) { 4784 if (!isEnabled()) { 4785 return super.onKeyUp(keyCode, event); 4786 } 4787 4788 hideControllers(); 4789 4790 switch (keyCode) { 4791 case KeyEvent.KEYCODE_DPAD_CENTER: 4792 mDPadCenterIsDown = false; 4793 if (event.hasNoModifiers()) { 4794 /* 4795 * If there is a click listener, just call through to 4796 * super, which will invoke it. 4797 * 4798 * If there isn't a click listener, try to show the soft 4799 * input method. (It will also 4800 * call performClick(), but that won't do anything in 4801 * this case.) 4802 */ 4803 if (mOnClickListener == null) { 4804 if (mMovement != null && mText instanceof Editable 4805 && mLayout != null && onCheckIsTextEditor()) { 4806 InputMethodManager imm = (InputMethodManager) 4807 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 4808 imm.showSoftInput(this, 0); 4809 } 4810 } 4811 } 4812 return super.onKeyUp(keyCode, event); 4813 4814 case KeyEvent.KEYCODE_ENTER: 4815 mEnterKeyIsDown = false; 4816 if (event.hasNoModifiers()) { 4817 if (mInputContentType != null 4818 && mInputContentType.onEditorActionListener != null 4819 && mInputContentType.enterDown) { 4820 mInputContentType.enterDown = false; 4821 if (mInputContentType.onEditorActionListener.onEditorAction( 4822 this, EditorInfo.IME_NULL, event)) { 4823 return true; 4824 } 4825 } 4826 4827 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 4828 || shouldAdvanceFocusOnEnter()) { 4829 /* 4830 * If there is a click listener, just call through to 4831 * super, which will invoke it. 4832 * 4833 * If there isn't a click listener, try to advance focus, 4834 * but still call through to super, which will reset the 4835 * pressed state and longpress state. (It will also 4836 * call performClick(), but that won't do anything in 4837 * this case.) 4838 */ 4839 if (mOnClickListener == null) { 4840 View v = focusSearch(FOCUS_DOWN); 4841 4842 if (v != null) { 4843 if (!v.requestFocus(FOCUS_DOWN)) { 4844 throw new IllegalStateException( 4845 "focus search returned a view " + 4846 "that wasn't able to take focus!"); 4847 } 4848 4849 /* 4850 * Return true because we handled the key; super 4851 * will return false because there was no click 4852 * listener. 4853 */ 4854 super.onKeyUp(keyCode, event); 4855 return true; 4856 } else if ((event.getFlags() 4857 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 4858 // No target for next focus, but make sure the IME 4859 // if this came from it. 4860 InputMethodManager imm = InputMethodManager.peekInstance(); 4861 if (imm != null) { 4862 imm.hideSoftInputFromWindow(getWindowToken(), 0); 4863 } 4864 } 4865 } 4866 } 4867 return super.onKeyUp(keyCode, event); 4868 } 4869 break; 4870 } 4871 4872 if (mInput != null) 4873 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 4874 return true; 4875 4876 if (mMovement != null && mLayout != null) 4877 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 4878 return true; 4879 4880 return super.onKeyUp(keyCode, event); 4881 } 4882 4883 @Override public boolean onCheckIsTextEditor() { 4884 return mInputType != EditorInfo.TYPE_NULL; 4885 } 4886 4887 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4888 if (onCheckIsTextEditor() && isEnabled()) { 4889 if (mInputMethodState == null) { 4890 mInputMethodState = new InputMethodState(); 4891 } 4892 outAttrs.inputType = mInputType; 4893 if (mInputContentType != null) { 4894 outAttrs.imeOptions = mInputContentType.imeOptions; 4895 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 4896 outAttrs.actionLabel = mInputContentType.imeActionLabel; 4897 outAttrs.actionId = mInputContentType.imeActionId; 4898 outAttrs.extras = mInputContentType.extras; 4899 } else { 4900 outAttrs.imeOptions = EditorInfo.IME_NULL; 4901 } 4902 if (focusSearch(FOCUS_DOWN) != null) { 4903 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 4904 } 4905 if (focusSearch(FOCUS_UP) != null) { 4906 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 4907 } 4908 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 4909 == EditorInfo.IME_ACTION_UNSPECIFIED) { 4910 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 4911 // An action has not been set, but the enter key will move to 4912 // the next focus, so set the action to that. 4913 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 4914 } else { 4915 // An action has not been set, and there is no focus to move 4916 // to, so let's just supply a "done" action. 4917 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 4918 } 4919 if (!shouldAdvanceFocusOnEnter()) { 4920 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 4921 } 4922 } 4923 if (isMultilineInputType(outAttrs.inputType)) { 4924 // Multi-line text editors should always show an enter key. 4925 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 4926 } 4927 outAttrs.hintText = mHint; 4928 if (mText instanceof Editable) { 4929 InputConnection ic = new EditableInputConnection(this); 4930 outAttrs.initialSelStart = getSelectionStart(); 4931 outAttrs.initialSelEnd = getSelectionEnd(); 4932 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 4933 return ic; 4934 } 4935 } 4936 return null; 4937 } 4938 4939 /** 4940 * If this TextView contains editable content, extract a portion of it 4941 * based on the information in <var>request</var> in to <var>outText</var>. 4942 * @return Returns true if the text was successfully extracted, else false. 4943 */ 4944 public boolean extractText(ExtractedTextRequest request, 4945 ExtractedText outText) { 4946 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 4947 EXTRACT_UNKNOWN, outText); 4948 } 4949 4950 static final int EXTRACT_NOTHING = -2; 4951 static final int EXTRACT_UNKNOWN = -1; 4952 4953 boolean extractTextInternal(ExtractedTextRequest request, 4954 int partialStartOffset, int partialEndOffset, int delta, 4955 ExtractedText outText) { 4956 final CharSequence content = mText; 4957 if (content != null) { 4958 if (partialStartOffset != EXTRACT_NOTHING) { 4959 final int N = content.length(); 4960 if (partialStartOffset < 0) { 4961 outText.partialStartOffset = outText.partialEndOffset = -1; 4962 partialStartOffset = 0; 4963 partialEndOffset = N; 4964 } else { 4965 // Now use the delta to determine the actual amount of text 4966 // we need. 4967 partialEndOffset += delta; 4968 // Adjust offsets to ensure we contain full spans. 4969 if (content instanceof Spanned) { 4970 Spanned spanned = (Spanned)content; 4971 Object[] spans = spanned.getSpans(partialStartOffset, 4972 partialEndOffset, ParcelableSpan.class); 4973 int i = spans.length; 4974 while (i > 0) { 4975 i--; 4976 int j = spanned.getSpanStart(spans[i]); 4977 if (j < partialStartOffset) partialStartOffset = j; 4978 j = spanned.getSpanEnd(spans[i]); 4979 if (j > partialEndOffset) partialEndOffset = j; 4980 } 4981 } 4982 outText.partialStartOffset = partialStartOffset; 4983 outText.partialEndOffset = partialEndOffset - delta; 4984 4985 if (partialStartOffset > N) { 4986 partialStartOffset = N; 4987 } else if (partialStartOffset < 0) { 4988 partialStartOffset = 0; 4989 } 4990 if (partialEndOffset > N) { 4991 partialEndOffset = N; 4992 } else if (partialEndOffset < 0) { 4993 partialEndOffset = 0; 4994 } 4995 } 4996 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 4997 outText.text = content.subSequence(partialStartOffset, 4998 partialEndOffset); 4999 } else { 5000 outText.text = TextUtils.substring(content, partialStartOffset, 5001 partialEndOffset); 5002 } 5003 } else { 5004 outText.partialStartOffset = 0; 5005 outText.partialEndOffset = 0; 5006 outText.text = ""; 5007 } 5008 outText.flags = 0; 5009 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 5010 outText.flags |= ExtractedText.FLAG_SELECTING; 5011 } 5012 if (mSingleLine) { 5013 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 5014 } 5015 outText.startOffset = 0; 5016 outText.selectionStart = getSelectionStart(); 5017 outText.selectionEnd = getSelectionEnd(); 5018 return true; 5019 } 5020 return false; 5021 } 5022 5023 boolean reportExtractedText() { 5024 final InputMethodState ims = mInputMethodState; 5025 if (ims != null) { 5026 final boolean contentChanged = ims.mContentChanged; 5027 if (contentChanged || ims.mSelectionModeChanged) { 5028 ims.mContentChanged = false; 5029 ims.mSelectionModeChanged = false; 5030 final ExtractedTextRequest req = mInputMethodState.mExtracting; 5031 if (req != null) { 5032 InputMethodManager imm = InputMethodManager.peekInstance(); 5033 if (imm != null) { 5034 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 5035 + ims.mChangedStart + " end=" + ims.mChangedEnd 5036 + " delta=" + ims.mChangedDelta); 5037 if (ims.mChangedStart < 0 && !contentChanged) { 5038 ims.mChangedStart = EXTRACT_NOTHING; 5039 } 5040 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 5041 ims.mChangedDelta, ims.mTmpExtracted)) { 5042 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 5043 + ims.mTmpExtracted.partialStartOffset 5044 + " end=" + ims.mTmpExtracted.partialEndOffset 5045 + ": " + ims.mTmpExtracted.text); 5046 imm.updateExtractedText(this, req.token, 5047 mInputMethodState.mTmpExtracted); 5048 ims.mChangedStart = EXTRACT_UNKNOWN; 5049 ims.mChangedEnd = EXTRACT_UNKNOWN; 5050 ims.mChangedDelta = 0; 5051 ims.mContentChanged = false; 5052 return true; 5053 } 5054 } 5055 } 5056 } 5057 } 5058 return false; 5059 } 5060 5061 /** 5062 * This is used to remove all style-impacting spans from text before new 5063 * extracted text is being replaced into it, so that we don't have any 5064 * lingering spans applied during the replace. 5065 */ 5066 static void removeParcelableSpans(Spannable spannable, int start, int end) { 5067 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 5068 int i = spans.length; 5069 while (i > 0) { 5070 i--; 5071 spannable.removeSpan(spans[i]); 5072 } 5073 } 5074 5075 /** 5076 * Apply to this text view the given extracted text, as previously 5077 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 5078 */ 5079 public void setExtractedText(ExtractedText text) { 5080 Editable content = getEditableText(); 5081 if (text.text != null) { 5082 if (content == null) { 5083 setText(text.text, TextView.BufferType.EDITABLE); 5084 } else if (text.partialStartOffset < 0) { 5085 removeParcelableSpans(content, 0, content.length()); 5086 content.replace(0, content.length(), text.text); 5087 } else { 5088 final int N = content.length(); 5089 int start = text.partialStartOffset; 5090 if (start > N) start = N; 5091 int end = text.partialEndOffset; 5092 if (end > N) end = N; 5093 removeParcelableSpans(content, start, end); 5094 content.replace(start, end, text.text); 5095 } 5096 } 5097 5098 // Now set the selection position... make sure it is in range, to 5099 // avoid crashes. If this is a partial update, it is possible that 5100 // the underlying text may have changed, causing us problems here. 5101 // Also we just don't want to trust clients to do the right thing. 5102 Spannable sp = (Spannable)getText(); 5103 final int N = sp.length(); 5104 int start = text.selectionStart; 5105 if (start < 0) start = 0; 5106 else if (start > N) start = N; 5107 int end = text.selectionEnd; 5108 if (end < 0) end = 0; 5109 else if (end > N) end = N; 5110 Selection.setSelection(sp, start, end); 5111 5112 // Finally, update the selection mode. 5113 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 5114 MetaKeyKeyListener.startSelecting(this, sp); 5115 } else { 5116 MetaKeyKeyListener.stopSelecting(this, sp); 5117 } 5118 } 5119 5120 /** 5121 * @hide 5122 */ 5123 public void setExtracting(ExtractedTextRequest req) { 5124 if (mInputMethodState != null) { 5125 mInputMethodState.mExtracting = req; 5126 } 5127 // This stops a possible text selection mode. Maybe not intended. 5128 hideControllers(); 5129 } 5130 5131 /** 5132 * Called by the framework in response to a text completion from 5133 * the current input method, provided by it calling 5134 * {@link InputConnection#commitCompletion 5135 * InputConnection.commitCompletion()}. The default implementation does 5136 * nothing; text views that are supporting auto-completion should override 5137 * this to do their desired behavior. 5138 * 5139 * @param text The auto complete text the user has selected. 5140 */ 5141 public void onCommitCompletion(CompletionInfo text) { 5142 } 5143 5144 /** 5145 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 5146 * a dictionnary) from the current input method, provided by it calling 5147 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 5148 * implementation flashes the background of the corrected word to provide feedback to the user. 5149 * 5150 * @param info The auto correct info about the text that was corrected. 5151 */ 5152 public void onCommitCorrection(CorrectionInfo info) { 5153 if (mCorrectionHighlighter == null) { 5154 mCorrectionHighlighter = new CorrectionHighlighter(); 5155 } else { 5156 mCorrectionHighlighter.invalidate(false); 5157 } 5158 5159 mCorrectionHighlighter.highlight(info); 5160 } 5161 5162 private class CorrectionHighlighter { 5163 private final Path mPath = new Path(); 5164 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 5165 private int mStart, mEnd; 5166 private long mFadingStartTime; 5167 private final static int FADE_OUT_DURATION = 400; 5168 5169 public CorrectionHighlighter() { 5170 mPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale); 5171 mPaint.setStyle(Paint.Style.FILL); 5172 } 5173 5174 public void highlight(CorrectionInfo info) { 5175 mStart = info.getOffset(); 5176 mEnd = mStart + info.getNewText().length(); 5177 mFadingStartTime = SystemClock.uptimeMillis(); 5178 5179 if (mStart < 0 || mEnd < 0) { 5180 stopAnimation(); 5181 } 5182 } 5183 5184 public void draw(Canvas canvas, int cursorOffsetVertical) { 5185 if (updatePath() && updatePaint()) { 5186 if (cursorOffsetVertical != 0) { 5187 canvas.translate(0, cursorOffsetVertical); 5188 } 5189 5190 canvas.drawPath(mPath, mPaint); 5191 5192 if (cursorOffsetVertical != 0) { 5193 canvas.translate(0, -cursorOffsetVertical); 5194 } 5195 invalidate(true); 5196 } else { 5197 stopAnimation(); 5198 invalidate(false); 5199 } 5200 } 5201 5202 private boolean updatePaint() { 5203 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 5204 if (duration > FADE_OUT_DURATION) return false; 5205 5206 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 5207 final int highlightColorAlpha = Color.alpha(mHighlightColor); 5208 final int color = (mHighlightColor & 0x00FFFFFF) + 5209 ((int) (highlightColorAlpha * coef) << 24); 5210 mPaint.setColor(color); 5211 return true; 5212 } 5213 5214 private boolean updatePath() { 5215 final Layout layout = TextView.this.mLayout; 5216 if (layout == null) return false; 5217 5218 // Update in case text is edited while the animation is run 5219 final int length = mText.length(); 5220 int start = Math.min(length, mStart); 5221 int end = Math.min(length, mEnd); 5222 5223 mPath.reset(); 5224 TextView.this.mLayout.getSelectionPath(start, end, mPath); 5225 return true; 5226 } 5227 5228 private void invalidate(boolean delayed) { 5229 if (TextView.this.mLayout == null) return; 5230 5231 synchronized (sTempRect) { 5232 mPath.computeBounds(sTempRect, false); 5233 5234 int left = getCompoundPaddingLeft(); 5235 int top = getExtendedPaddingTop() + getVerticalOffset(true); 5236 5237 if (delayed) { 5238 TextView.this.postInvalidateDelayed(16, // 60 Hz update 5239 left + (int) sTempRect.left, top + (int) sTempRect.top, 5240 left + (int) sTempRect.right, top + (int) sTempRect.bottom); 5241 } else { 5242 TextView.this.postInvalidate((int) sTempRect.left, (int) sTempRect.top, 5243 (int) sTempRect.right, (int) sTempRect.bottom); 5244 } 5245 } 5246 } 5247 5248 private void stopAnimation() { 5249 TextView.this.mCorrectionHighlighter = null; 5250 } 5251 } 5252 5253 public void beginBatchEdit() { 5254 mInBatchEditControllers = true; 5255 final InputMethodState ims = mInputMethodState; 5256 if (ims != null) { 5257 int nesting = ++ims.mBatchEditNesting; 5258 if (nesting == 1) { 5259 ims.mCursorChanged = false; 5260 ims.mChangedDelta = 0; 5261 if (ims.mContentChanged) { 5262 // We already have a pending change from somewhere else, 5263 // so turn this into a full update. 5264 ims.mChangedStart = 0; 5265 ims.mChangedEnd = mText.length(); 5266 } else { 5267 ims.mChangedStart = EXTRACT_UNKNOWN; 5268 ims.mChangedEnd = EXTRACT_UNKNOWN; 5269 ims.mContentChanged = false; 5270 } 5271 onBeginBatchEdit(); 5272 } 5273 } 5274 } 5275 5276 public void endBatchEdit() { 5277 mInBatchEditControllers = false; 5278 final InputMethodState ims = mInputMethodState; 5279 if (ims != null) { 5280 int nesting = --ims.mBatchEditNesting; 5281 if (nesting == 0) { 5282 finishBatchEdit(ims); 5283 } 5284 } 5285 } 5286 5287 void ensureEndedBatchEdit() { 5288 final InputMethodState ims = mInputMethodState; 5289 if (ims != null && ims.mBatchEditNesting != 0) { 5290 ims.mBatchEditNesting = 0; 5291 finishBatchEdit(ims); 5292 } 5293 } 5294 5295 void finishBatchEdit(final InputMethodState ims) { 5296 onEndBatchEdit(); 5297 5298 if (ims.mContentChanged || ims.mSelectionModeChanged) { 5299 updateAfterEdit(); 5300 reportExtractedText(); 5301 } else if (ims.mCursorChanged) { 5302 // Cheezy way to get us to report the current cursor location. 5303 invalidateCursor(); 5304 } 5305 } 5306 5307 void updateAfterEdit() { 5308 invalidate(); 5309 int curs = getSelectionStart(); 5310 5311 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == 5312 Gravity.BOTTOM) { 5313 registerForPreDraw(); 5314 } 5315 5316 if (curs >= 0) { 5317 mHighlightPathBogus = true; 5318 5319 if (isFocused()) { 5320 mShowCursor = SystemClock.uptimeMillis(); 5321 makeBlink(); 5322 } 5323 } 5324 5325 checkForResize(); 5326 } 5327 5328 /** 5329 * Called by the framework in response to a request to begin a batch 5330 * of edit operations through a call to link {@link #beginBatchEdit()}. 5331 */ 5332 public void onBeginBatchEdit() { 5333 } 5334 5335 /** 5336 * Called by the framework in response to a request to end a batch 5337 * of edit operations through a call to link {@link #endBatchEdit}. 5338 */ 5339 public void onEndBatchEdit() { 5340 } 5341 5342 /** 5343 * Called by the framework in response to a private command from the 5344 * current method, provided by it calling 5345 * {@link InputConnection#performPrivateCommand 5346 * InputConnection.performPrivateCommand()}. 5347 * 5348 * @param action The action name of the command. 5349 * @param data Any additional data for the command. This may be null. 5350 * @return Return true if you handled the command, else false. 5351 */ 5352 public boolean onPrivateIMECommand(String action, Bundle data) { 5353 return false; 5354 } 5355 5356 private void nullLayouts() { 5357 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 5358 mSavedLayout = (BoringLayout) mLayout; 5359 } 5360 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 5361 mSavedHintLayout = (BoringLayout) mHintLayout; 5362 } 5363 5364 mLayout = mHintLayout = null; 5365 5366 // Since it depends on the value of mLayout 5367 prepareCursorControllers(); 5368 } 5369 5370 /** 5371 * Make a new Layout based on the already-measured size of the view, 5372 * on the assumption that it was measured correctly at some point. 5373 */ 5374 private void assumeLayout() { 5375 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5376 5377 if (width < 1) { 5378 width = 0; 5379 } 5380 5381 int physicalWidth = width; 5382 5383 if (mHorizontallyScrolling) { 5384 width = VERY_WIDE; 5385 } 5386 5387 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 5388 physicalWidth, false); 5389 } 5390 5391 /** 5392 * The width passed in is now the desired layout width, 5393 * not the full view width with padding. 5394 * {@hide} 5395 */ 5396 protected void makeNewLayout(int w, int hintWidth, 5397 BoringLayout.Metrics boring, 5398 BoringLayout.Metrics hintBoring, 5399 int ellipsisWidth, boolean bringIntoView) { 5400 stopMarquee(); 5401 5402 mHighlightPathBogus = true; 5403 5404 if (w < 0) { 5405 w = 0; 5406 } 5407 if (hintWidth < 0) { 5408 hintWidth = 0; 5409 } 5410 5411 Layout.Alignment alignment; 5412 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 5413 case Gravity.CENTER_HORIZONTAL: 5414 alignment = Layout.Alignment.ALIGN_CENTER; 5415 break; 5416 5417 case Gravity.RIGHT: 5418 // Note, Layout resolves ALIGN_OPPOSITE to left or 5419 // right based on the paragraph direction. 5420 alignment = Layout.Alignment.ALIGN_OPPOSITE; 5421 break; 5422 5423 default: 5424 alignment = Layout.Alignment.ALIGN_NORMAL; 5425 } 5426 5427 boolean shouldEllipsize = mEllipsize != null && mInput == null; 5428 5429 if (mText instanceof Spannable) { 5430 mLayout = new DynamicLayout(mText, mTransformed, mTextPaint, w, 5431 alignment, mSpacingMult, 5432 mSpacingAdd, mIncludePad, mInput == null ? mEllipsize : null, 5433 ellipsisWidth); 5434 } else { 5435 if (boring == UNKNOWN_BORING) { 5436 boring = BoringLayout.isBoring(mTransformed, mTextPaint, 5437 mBoring); 5438 if (boring != null) { 5439 mBoring = boring; 5440 } 5441 } 5442 5443 if (boring != null) { 5444 if (boring.width <= w && 5445 (mEllipsize == null || boring.width <= ellipsisWidth)) { 5446 if (mSavedLayout != null) { 5447 mLayout = mSavedLayout. 5448 replaceOrMake(mTransformed, mTextPaint, 5449 w, alignment, mSpacingMult, mSpacingAdd, 5450 boring, mIncludePad); 5451 } else { 5452 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5453 w, alignment, mSpacingMult, mSpacingAdd, 5454 boring, mIncludePad); 5455 } 5456 5457 mSavedLayout = (BoringLayout) mLayout; 5458 } else if (shouldEllipsize && boring.width <= w) { 5459 if (mSavedLayout != null) { 5460 mLayout = mSavedLayout. 5461 replaceOrMake(mTransformed, mTextPaint, 5462 w, alignment, mSpacingMult, mSpacingAdd, 5463 boring, mIncludePad, mEllipsize, 5464 ellipsisWidth); 5465 } else { 5466 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5467 w, alignment, mSpacingMult, mSpacingAdd, 5468 boring, mIncludePad, mEllipsize, 5469 ellipsisWidth); 5470 } 5471 } else if (shouldEllipsize) { 5472 mLayout = new StaticLayout(mTransformed, 5473 0, mTransformed.length(), 5474 mTextPaint, w, alignment, mSpacingMult, 5475 mSpacingAdd, mIncludePad, mEllipsize, 5476 ellipsisWidth); 5477 } else { 5478 mLayout = new StaticLayout(mTransformed, mTextPaint, 5479 w, alignment, mSpacingMult, mSpacingAdd, 5480 mIncludePad); 5481 } 5482 } else if (shouldEllipsize) { 5483 mLayout = new StaticLayout(mTransformed, 5484 0, mTransformed.length(), 5485 mTextPaint, w, alignment, mSpacingMult, 5486 mSpacingAdd, mIncludePad, mEllipsize, 5487 ellipsisWidth); 5488 } else { 5489 mLayout = new StaticLayout(mTransformed, mTextPaint, 5490 w, alignment, mSpacingMult, mSpacingAdd, 5491 mIncludePad); 5492 } 5493 } 5494 5495 shouldEllipsize = mEllipsize != null; 5496 mHintLayout = null; 5497 5498 if (mHint != null) { 5499 if (shouldEllipsize) hintWidth = w; 5500 5501 if (hintBoring == UNKNOWN_BORING) { 5502 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, 5503 mHintBoring); 5504 if (hintBoring != null) { 5505 mHintBoring = hintBoring; 5506 } 5507 } 5508 5509 if (hintBoring != null) { 5510 if (hintBoring.width <= hintWidth && 5511 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 5512 if (mSavedHintLayout != null) { 5513 mHintLayout = mSavedHintLayout. 5514 replaceOrMake(mHint, mTextPaint, 5515 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5516 hintBoring, mIncludePad); 5517 } else { 5518 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5519 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5520 hintBoring, mIncludePad); 5521 } 5522 5523 mSavedHintLayout = (BoringLayout) mHintLayout; 5524 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 5525 if (mSavedHintLayout != null) { 5526 mHintLayout = mSavedHintLayout. 5527 replaceOrMake(mHint, mTextPaint, 5528 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5529 hintBoring, mIncludePad, mEllipsize, 5530 ellipsisWidth); 5531 } else { 5532 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5533 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5534 hintBoring, mIncludePad, mEllipsize, 5535 ellipsisWidth); 5536 } 5537 } else if (shouldEllipsize) { 5538 mHintLayout = new StaticLayout(mHint, 5539 0, mHint.length(), 5540 mTextPaint, hintWidth, alignment, mSpacingMult, 5541 mSpacingAdd, mIncludePad, mEllipsize, 5542 ellipsisWidth); 5543 } else { 5544 mHintLayout = new StaticLayout(mHint, mTextPaint, 5545 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5546 mIncludePad); 5547 } 5548 } else if (shouldEllipsize) { 5549 mHintLayout = new StaticLayout(mHint, 5550 0, mHint.length(), 5551 mTextPaint, hintWidth, alignment, mSpacingMult, 5552 mSpacingAdd, mIncludePad, mEllipsize, 5553 ellipsisWidth); 5554 } else { 5555 mHintLayout = new StaticLayout(mHint, mTextPaint, 5556 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5557 mIncludePad); 5558 } 5559 } 5560 5561 if (bringIntoView) { 5562 registerForPreDraw(); 5563 } 5564 5565 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 5566 if (!compressText(ellipsisWidth)) { 5567 final int height = mLayoutParams.height; 5568 // If the size of the view does not depend on the size of the text, try to 5569 // start the marquee immediately 5570 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 5571 startMarquee(); 5572 } else { 5573 // Defer the start of the marquee until we know our width (see setFrame()) 5574 mRestartMarquee = true; 5575 } 5576 } 5577 } 5578 5579 // CursorControllers need a non-null mLayout 5580 prepareCursorControllers(); 5581 } 5582 5583 private boolean compressText(float width) { 5584 if (isHardwareAccelerated()) return false; 5585 5586 // Only compress the text if it hasn't been compressed by the previous pass 5587 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 5588 mTextPaint.getTextScaleX() == 1.0f) { 5589 final float textWidth = mLayout.getLineWidth(0); 5590 final float overflow = (textWidth + 1.0f - width) / width; 5591 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 5592 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 5593 post(new Runnable() { 5594 public void run() { 5595 requestLayout(); 5596 } 5597 }); 5598 return true; 5599 } 5600 } 5601 5602 return false; 5603 } 5604 5605 private static int desired(Layout layout) { 5606 int n = layout.getLineCount(); 5607 CharSequence text = layout.getText(); 5608 float max = 0; 5609 5610 // if any line was wrapped, we can't use it. 5611 // but it's ok for the last line not to have a newline 5612 5613 for (int i = 0; i < n - 1; i++) { 5614 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 5615 return -1; 5616 } 5617 5618 for (int i = 0; i < n; i++) { 5619 max = Math.max(max, layout.getLineWidth(i)); 5620 } 5621 5622 return (int) FloatMath.ceil(max); 5623 } 5624 5625 /** 5626 * Set whether the TextView includes extra top and bottom padding to make 5627 * room for accents that go above the normal ascent and descent. 5628 * The default is true. 5629 * 5630 * @attr ref android.R.styleable#TextView_includeFontPadding 5631 */ 5632 public void setIncludeFontPadding(boolean includepad) { 5633 mIncludePad = includepad; 5634 5635 if (mLayout != null) { 5636 nullLayouts(); 5637 requestLayout(); 5638 invalidate(); 5639 } 5640 } 5641 5642 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 5643 5644 @Override 5645 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 5646 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 5647 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 5648 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 5649 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 5650 5651 int width; 5652 int height; 5653 5654 BoringLayout.Metrics boring = UNKNOWN_BORING; 5655 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 5656 5657 int des = -1; 5658 boolean fromexisting = false; 5659 5660 if (widthMode == MeasureSpec.EXACTLY) { 5661 // Parent has told us how big to be. So be it. 5662 width = widthSize; 5663 } else { 5664 if (mLayout != null && mEllipsize == null) { 5665 des = desired(mLayout); 5666 } 5667 5668 if (des < 0) { 5669 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mBoring); 5670 if (boring != null) { 5671 mBoring = boring; 5672 } 5673 } else { 5674 fromexisting = true; 5675 } 5676 5677 if (boring == null || boring == UNKNOWN_BORING) { 5678 if (des < 0) { 5679 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 5680 } 5681 5682 width = des; 5683 } else { 5684 width = boring.width; 5685 } 5686 5687 final Drawables dr = mDrawables; 5688 if (dr != null) { 5689 width = Math.max(width, dr.mDrawableWidthTop); 5690 width = Math.max(width, dr.mDrawableWidthBottom); 5691 } 5692 5693 if (mHint != null) { 5694 int hintDes = -1; 5695 int hintWidth; 5696 5697 if (mHintLayout != null && mEllipsize == null) { 5698 hintDes = desired(mHintLayout); 5699 } 5700 5701 if (hintDes < 0) { 5702 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 5703 if (hintBoring != null) { 5704 mHintBoring = hintBoring; 5705 } 5706 } 5707 5708 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 5709 if (hintDes < 0) { 5710 hintDes = (int) FloatMath.ceil( 5711 Layout.getDesiredWidth(mHint, mTextPaint)); 5712 } 5713 5714 hintWidth = hintDes; 5715 } else { 5716 hintWidth = hintBoring.width; 5717 } 5718 5719 if (hintWidth > width) { 5720 width = hintWidth; 5721 } 5722 } 5723 5724 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 5725 5726 if (mMaxWidthMode == EMS) { 5727 width = Math.min(width, mMaxWidth * getLineHeight()); 5728 } else { 5729 width = Math.min(width, mMaxWidth); 5730 } 5731 5732 if (mMinWidthMode == EMS) { 5733 width = Math.max(width, mMinWidth * getLineHeight()); 5734 } else { 5735 width = Math.max(width, mMinWidth); 5736 } 5737 5738 // Check against our minimum width 5739 width = Math.max(width, getSuggestedMinimumWidth()); 5740 5741 if (widthMode == MeasureSpec.AT_MOST) { 5742 width = Math.min(widthSize, width); 5743 } 5744 } 5745 5746 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5747 int unpaddedWidth = want; 5748 int hintWant = want; 5749 5750 if (mHorizontallyScrolling) 5751 want = VERY_WIDE; 5752 5753 int hintWidth = mHintLayout == null ? hintWant : mHintLayout.getWidth(); 5754 5755 if (mLayout == null) { 5756 makeNewLayout(want, hintWant, boring, hintBoring, 5757 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5758 } else if ((mLayout.getWidth() != want) || (hintWidth != hintWant) || 5759 (mLayout.getEllipsizedWidth() != 5760 width - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 5761 if (mHint == null && mEllipsize == null && 5762 want > mLayout.getWidth() && 5763 (mLayout instanceof BoringLayout || 5764 (fromexisting && des >= 0 && des <= want))) { 5765 mLayout.increaseWidthTo(want); 5766 } else { 5767 makeNewLayout(want, hintWant, boring, hintBoring, 5768 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5769 } 5770 } else { 5771 // Width has not changed. 5772 } 5773 5774 if (heightMode == MeasureSpec.EXACTLY) { 5775 // Parent has told us how big to be. So be it. 5776 height = heightSize; 5777 mDesiredHeightAtMeasure = -1; 5778 } else { 5779 int desired = getDesiredHeight(); 5780 5781 height = desired; 5782 mDesiredHeightAtMeasure = desired; 5783 5784 if (heightMode == MeasureSpec.AT_MOST) { 5785 height = Math.min(desired, heightSize); 5786 } 5787 } 5788 5789 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 5790 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 5791 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 5792 } 5793 5794 /* 5795 * We didn't let makeNewLayout() register to bring the cursor into view, 5796 * so do it here if there is any possibility that it is needed. 5797 */ 5798 if (mMovement != null || 5799 mLayout.getWidth() > unpaddedWidth || 5800 mLayout.getHeight() > unpaddedHeight) { 5801 registerForPreDraw(); 5802 } else { 5803 scrollTo(0, 0); 5804 } 5805 5806 setMeasuredDimension(width, height); 5807 } 5808 5809 private int getDesiredHeight() { 5810 return Math.max( 5811 getDesiredHeight(mLayout, true), 5812 getDesiredHeight(mHintLayout, mEllipsize != null)); 5813 } 5814 5815 private int getDesiredHeight(Layout layout, boolean cap) { 5816 if (layout == null) { 5817 return 0; 5818 } 5819 5820 int linecount = layout.getLineCount(); 5821 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 5822 int desired = layout.getLineTop(linecount); 5823 5824 final Drawables dr = mDrawables; 5825 if (dr != null) { 5826 desired = Math.max(desired, dr.mDrawableHeightLeft); 5827 desired = Math.max(desired, dr.mDrawableHeightRight); 5828 } 5829 5830 desired += pad; 5831 5832 if (mMaxMode == LINES) { 5833 /* 5834 * Don't cap the hint to a certain number of lines. 5835 * (Do cap it, though, if we have a maximum pixel height.) 5836 */ 5837 if (cap) { 5838 if (linecount > mMaximum) { 5839 desired = layout.getLineTop(mMaximum) + 5840 layout.getBottomPadding(); 5841 5842 if (dr != null) { 5843 desired = Math.max(desired, dr.mDrawableHeightLeft); 5844 desired = Math.max(desired, dr.mDrawableHeightRight); 5845 } 5846 5847 desired += pad; 5848 linecount = mMaximum; 5849 } 5850 } 5851 } else { 5852 desired = Math.min(desired, mMaximum); 5853 } 5854 5855 if (mMinMode == LINES) { 5856 if (linecount < mMinimum) { 5857 desired += getLineHeight() * (mMinimum - linecount); 5858 } 5859 } else { 5860 desired = Math.max(desired, mMinimum); 5861 } 5862 5863 // Check against our minimum height 5864 desired = Math.max(desired, getSuggestedMinimumHeight()); 5865 5866 return desired; 5867 } 5868 5869 /** 5870 * Check whether a change to the existing text layout requires a 5871 * new view layout. 5872 */ 5873 private void checkForResize() { 5874 boolean sizeChanged = false; 5875 5876 if (mLayout != null) { 5877 // Check if our width changed 5878 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 5879 sizeChanged = true; 5880 invalidate(); 5881 } 5882 5883 // Check if our height changed 5884 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 5885 int desiredHeight = getDesiredHeight(); 5886 5887 if (desiredHeight != this.getHeight()) { 5888 sizeChanged = true; 5889 } 5890 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 5891 if (mDesiredHeightAtMeasure >= 0) { 5892 int desiredHeight = getDesiredHeight(); 5893 5894 if (desiredHeight != mDesiredHeightAtMeasure) { 5895 sizeChanged = true; 5896 } 5897 } 5898 } 5899 } 5900 5901 if (sizeChanged) { 5902 requestLayout(); 5903 // caller will have already invalidated 5904 } 5905 } 5906 5907 /** 5908 * Check whether entirely new text requires a new view layout 5909 * or merely a new text layout. 5910 */ 5911 private void checkForRelayout() { 5912 // If we have a fixed width, we can just swap in a new text layout 5913 // if the text height stays the same or if the view height is fixed. 5914 5915 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 5916 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 5917 (mHint == null || mHintLayout != null) && 5918 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 5919 // Static width, so try making a new text layout. 5920 5921 int oldht = mLayout.getHeight(); 5922 int want = mLayout.getWidth(); 5923 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 5924 5925 /* 5926 * No need to bring the text into view, since the size is not 5927 * changing (unless we do the requestLayout(), in which case it 5928 * will happen at measure). 5929 */ 5930 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 5931 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 5932 false); 5933 5934 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 5935 // In a fixed-height view, so use our new text layout. 5936 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 5937 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 5938 invalidate(); 5939 return; 5940 } 5941 5942 // Dynamic height, but height has stayed the same, 5943 // so use our new text layout. 5944 if (mLayout.getHeight() == oldht && 5945 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 5946 invalidate(); 5947 return; 5948 } 5949 } 5950 5951 // We lose: the height has changed and we have a dynamic height. 5952 // Request a new view layout using our new text layout. 5953 requestLayout(); 5954 invalidate(); 5955 } else { 5956 // Dynamic width, so we have no choice but to request a new 5957 // view layout with a new text layout. 5958 5959 nullLayouts(); 5960 requestLayout(); 5961 invalidate(); 5962 } 5963 } 5964 5965 /** 5966 * Returns true if anything changed. 5967 */ 5968 private boolean bringTextIntoView() { 5969 int line = 0; 5970 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5971 line = mLayout.getLineCount() - 1; 5972 } 5973 5974 Layout.Alignment a = mLayout.getParagraphAlignment(line); 5975 int dir = mLayout.getParagraphDirection(line); 5976 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5977 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 5978 int ht = mLayout.getHeight(); 5979 5980 int scrollx, scrolly; 5981 5982 if (a == Layout.Alignment.ALIGN_CENTER) { 5983 /* 5984 * Keep centered if possible, or, if it is too wide to fit, 5985 * keep leading edge in view. 5986 */ 5987 5988 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5989 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5990 5991 if (right - left < hspace) { 5992 scrollx = (right + left) / 2 - hspace / 2; 5993 } else { 5994 if (dir < 0) { 5995 scrollx = right - hspace; 5996 } else { 5997 scrollx = left; 5998 } 5999 } 6000 } else if (a == Layout.Alignment.ALIGN_NORMAL) { 6001 /* 6002 * Keep leading edge in view. 6003 */ 6004 6005 if (dir < 0) { 6006 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6007 scrollx = right - hspace; 6008 } else { 6009 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6010 } 6011 } else /* a == Layout.Alignment.ALIGN_OPPOSITE */ { 6012 /* 6013 * Keep trailing edge in view. 6014 */ 6015 6016 if (dir < 0) { 6017 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6018 } else { 6019 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6020 scrollx = right - hspace; 6021 } 6022 } 6023 6024 if (ht < vspace) { 6025 scrolly = 0; 6026 } else { 6027 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6028 scrolly = ht - vspace; 6029 } else { 6030 scrolly = 0; 6031 } 6032 } 6033 6034 if (scrollx != mScrollX || scrolly != mScrollY) { 6035 scrollTo(scrollx, scrolly); 6036 return true; 6037 } else { 6038 return false; 6039 } 6040 } 6041 6042 /** 6043 * Move the point, specified by the offset, into the view if it is needed. 6044 * This has to be called after layout. Returns true if anything changed. 6045 */ 6046 public boolean bringPointIntoView(int offset) { 6047 boolean changed = false; 6048 6049 int line = mLayout.getLineForOffset(offset); 6050 6051 // FIXME: Is it okay to truncate this, or should we round? 6052 final int x = (int)mLayout.getPrimaryHorizontal(offset); 6053 final int top = mLayout.getLineTop(line); 6054 final int bottom = mLayout.getLineTop(line + 1); 6055 6056 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6057 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6058 int ht = mLayout.getHeight(); 6059 6060 int grav; 6061 6062 switch (mLayout.getParagraphAlignment(line)) { 6063 case ALIGN_NORMAL: 6064 grav = 1; 6065 break; 6066 6067 case ALIGN_OPPOSITE: 6068 grav = -1; 6069 break; 6070 6071 default: 6072 grav = 0; 6073 } 6074 6075 grav *= mLayout.getParagraphDirection(line); 6076 6077 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6078 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6079 6080 int hslack = (bottom - top) / 2; 6081 int vslack = hslack; 6082 6083 if (vslack > vspace / 4) 6084 vslack = vspace / 4; 6085 if (hslack > hspace / 4) 6086 hslack = hspace / 4; 6087 6088 int hs = mScrollX; 6089 int vs = mScrollY; 6090 6091 if (top - vs < vslack) 6092 vs = top - vslack; 6093 if (bottom - vs > vspace - vslack) 6094 vs = bottom - (vspace - vslack); 6095 if (ht - vs < vspace) 6096 vs = ht - vspace; 6097 if (0 - vs > 0) 6098 vs = 0; 6099 6100 if (grav != 0) { 6101 if (x - hs < hslack) { 6102 hs = x - hslack; 6103 } 6104 if (x - hs > hspace - hslack) { 6105 hs = x - (hspace - hslack); 6106 } 6107 } 6108 6109 if (grav < 0) { 6110 if (left - hs > 0) 6111 hs = left; 6112 if (right - hs < hspace) 6113 hs = right - hspace; 6114 } else if (grav > 0) { 6115 if (right - hs < hspace) 6116 hs = right - hspace; 6117 if (left - hs > 0) 6118 hs = left; 6119 } else /* grav == 0 */ { 6120 if (right - left <= hspace) { 6121 /* 6122 * If the entire text fits, center it exactly. 6123 */ 6124 hs = left - (hspace - (right - left)) / 2; 6125 } else if (x > right - hslack) { 6126 /* 6127 * If we are near the right edge, keep the right edge 6128 * at the edge of the view. 6129 */ 6130 hs = right - hspace; 6131 } else if (x < left + hslack) { 6132 /* 6133 * If we are near the left edge, keep the left edge 6134 * at the edge of the view. 6135 */ 6136 hs = left; 6137 } else if (left > hs) { 6138 /* 6139 * Is there whitespace visible at the left? Fix it if so. 6140 */ 6141 hs = left; 6142 } else if (right < hs + hspace) { 6143 /* 6144 * Is there whitespace visible at the right? Fix it if so. 6145 */ 6146 hs = right - hspace; 6147 } else { 6148 /* 6149 * Otherwise, float as needed. 6150 */ 6151 if (x - hs < hslack) { 6152 hs = x - hslack; 6153 } 6154 if (x - hs > hspace - hslack) { 6155 hs = x - (hspace - hslack); 6156 } 6157 } 6158 } 6159 6160 if (hs != mScrollX || vs != mScrollY) { 6161 if (mScroller == null) { 6162 scrollTo(hs, vs); 6163 } else { 6164 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 6165 int dx = hs - mScrollX; 6166 int dy = vs - mScrollY; 6167 6168 if (duration > ANIMATED_SCROLL_GAP) { 6169 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 6170 awakenScrollBars(mScroller.getDuration()); 6171 invalidate(); 6172 } else { 6173 if (!mScroller.isFinished()) { 6174 mScroller.abortAnimation(); 6175 } 6176 6177 scrollBy(dx, dy); 6178 } 6179 6180 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 6181 } 6182 6183 changed = true; 6184 } 6185 6186 if (isFocused()) { 6187 // This offsets because getInterestingRect() is in terms of 6188 // viewport coordinates, but requestRectangleOnScreen() 6189 // is in terms of content coordinates. 6190 6191 Rect r = new Rect(x, top, x + 1, bottom); 6192 getInterestingRect(r, line); 6193 r.offset(mScrollX, mScrollY); 6194 6195 if (requestRectangleOnScreen(r)) { 6196 changed = true; 6197 } 6198 } 6199 6200 return changed; 6201 } 6202 6203 /** 6204 * Move the cursor, if needed, so that it is at an offset that is visible 6205 * to the user. This will not move the cursor if it represents more than 6206 * one character (a selection range). This will only work if the 6207 * TextView contains spannable text; otherwise it will do nothing. 6208 * 6209 * @return True if the cursor was actually moved, false otherwise. 6210 */ 6211 public boolean moveCursorToVisibleOffset() { 6212 if (!(mText instanceof Spannable)) { 6213 return false; 6214 } 6215 int start = getSelectionStart(); 6216 int end = getSelectionEnd(); 6217 if (start != end) { 6218 return false; 6219 } 6220 6221 // First: make sure the line is visible on screen: 6222 6223 int line = mLayout.getLineForOffset(start); 6224 6225 final int top = mLayout.getLineTop(line); 6226 final int bottom = mLayout.getLineTop(line + 1); 6227 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6228 int vslack = (bottom - top) / 2; 6229 if (vslack > vspace / 4) 6230 vslack = vspace / 4; 6231 final int vs = mScrollY; 6232 6233 if (top < (vs+vslack)) { 6234 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 6235 } else if (bottom > (vspace+vs-vslack)) { 6236 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 6237 } 6238 6239 // Next: make sure the character is visible on screen: 6240 6241 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6242 final int hs = mScrollX; 6243 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 6244 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 6245 6246 // line might contain bidirectional text 6247 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 6248 final int highChar = leftChar > rightChar ? leftChar : rightChar; 6249 6250 int newStart = start; 6251 if (newStart < lowChar) { 6252 newStart = lowChar; 6253 } else if (newStart > highChar) { 6254 newStart = highChar; 6255 } 6256 6257 if (newStart != start) { 6258 Selection.setSelection((Spannable)mText, newStart); 6259 return true; 6260 } 6261 6262 return false; 6263 } 6264 6265 @Override 6266 public void computeScroll() { 6267 if (mScroller != null) { 6268 if (mScroller.computeScrollOffset()) { 6269 mScrollX = mScroller.getCurrX(); 6270 mScrollY = mScroller.getCurrY(); 6271 postInvalidate(); // So we draw again 6272 } 6273 } 6274 } 6275 6276 private void getInterestingRect(Rect r, int line) { 6277 convertFromViewportToContentCoordinates(r); 6278 6279 // Rectangle can can be expanded on first and last line to take 6280 // padding into account. 6281 // TODO Take left/right padding into account too? 6282 if (line == 0) r.top -= getExtendedPaddingTop(); 6283 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 6284 } 6285 6286 private void convertFromViewportToContentCoordinates(Rect r) { 6287 final int horizontalOffset = viewportToContentHorizontalOffset(); 6288 r.left += horizontalOffset; 6289 r.right += horizontalOffset; 6290 6291 final int verticalOffset = viewportToContentVerticalOffset(); 6292 r.top += verticalOffset; 6293 r.bottom += verticalOffset; 6294 } 6295 6296 private int viewportToContentHorizontalOffset() { 6297 return getCompoundPaddingLeft() - mScrollX; 6298 } 6299 6300 private int viewportToContentVerticalOffset() { 6301 int offset = getExtendedPaddingTop() - mScrollY; 6302 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 6303 offset += getVerticalOffset(false); 6304 } 6305 return offset; 6306 } 6307 6308 @Override 6309 public void debug(int depth) { 6310 super.debug(depth); 6311 6312 String output = debugIndent(depth); 6313 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 6314 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 6315 + "} "; 6316 6317 if (mText != null) { 6318 6319 output += "mText=\"" + mText + "\" "; 6320 if (mLayout != null) { 6321 output += "mLayout width=" + mLayout.getWidth() 6322 + " height=" + mLayout.getHeight(); 6323 } 6324 } else { 6325 output += "mText=NULL"; 6326 } 6327 Log.d(VIEW_LOG_TAG, output); 6328 } 6329 6330 /** 6331 * Convenience for {@link Selection#getSelectionStart}. 6332 */ 6333 @ViewDebug.ExportedProperty(category = "text") 6334 public int getSelectionStart() { 6335 return Selection.getSelectionStart(getText()); 6336 } 6337 6338 /** 6339 * Convenience for {@link Selection#getSelectionEnd}. 6340 */ 6341 @ViewDebug.ExportedProperty(category = "text") 6342 public int getSelectionEnd() { 6343 return Selection.getSelectionEnd(getText()); 6344 } 6345 6346 /** 6347 * Return true iff there is a selection inside this text view. 6348 */ 6349 public boolean hasSelection() { 6350 final int selectionStart = getSelectionStart(); 6351 final int selectionEnd = getSelectionEnd(); 6352 6353 return selectionStart >= 0 && selectionStart != selectionEnd; 6354 } 6355 6356 /** 6357 * Sets the properties of this field (lines, horizontally scrolling, 6358 * transformation method) to be for a single-line input. 6359 * 6360 * @attr ref android.R.styleable#TextView_singleLine 6361 */ 6362 public void setSingleLine() { 6363 setSingleLine(true); 6364 } 6365 6366 /** 6367 * If true, sets the properties of this field (number of lines, horizontally scrolling, 6368 * transformation method) to be for a single-line input; if false, restores these to the default 6369 * conditions. 6370 * 6371 * Note that the default conditions are not necessarily those that were in effect prior this 6372 * method, and you may want to reset these properties to your custom values. 6373 * 6374 * @attr ref android.R.styleable#TextView_singleLine 6375 */ 6376 @android.view.RemotableViewMethod 6377 public void setSingleLine(boolean singleLine) { 6378 // Could be used, but may break backward compatibility. 6379 // if (mSingleLine == singleLine) return; 6380 setInputTypeSingleLine(singleLine); 6381 applySingleLine(singleLine, true, true); 6382 } 6383 6384 /** 6385 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 6386 * @param singleLine 6387 */ 6388 private void setInputTypeSingleLine(boolean singleLine) { 6389 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 6390 if (singleLine) { 6391 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6392 } else { 6393 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6394 } 6395 } 6396 } 6397 6398 private void applySingleLine(boolean singleLine, boolean applyTransformation, 6399 boolean changeMaxLines) { 6400 mSingleLine = singleLine; 6401 if (singleLine) { 6402 setLines(1); 6403 setHorizontallyScrolling(true); 6404 if (applyTransformation) { 6405 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 6406 } 6407 // TODO setState 6408 } else { 6409 if (changeMaxLines) { 6410 setMaxLines(Integer.MAX_VALUE); 6411 } 6412 setHorizontallyScrolling(false); 6413 if (applyTransformation) { 6414 setTransformationMethod(null); 6415 } 6416 // TODO setState 6417 } 6418 } 6419 6420 /** 6421 * Causes words in the text that are longer than the view is wide 6422 * to be ellipsized instead of broken in the middle. You may also 6423 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 6424 * to constrain the text to a single line. Use <code>null</code> 6425 * to turn off ellipsizing. 6426 * 6427 * @attr ref android.R.styleable#TextView_ellipsize 6428 */ 6429 public void setEllipsize(TextUtils.TruncateAt where) { 6430 mEllipsize = where; 6431 6432 if (mLayout != null) { 6433 nullLayouts(); 6434 requestLayout(); 6435 invalidate(); 6436 } 6437 } 6438 6439 /** 6440 * Sets how many times to repeat the marquee animation. Only applied if the 6441 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 6442 * 6443 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 6444 */ 6445 public void setMarqueeRepeatLimit(int marqueeLimit) { 6446 mMarqueeRepeatLimit = marqueeLimit; 6447 } 6448 6449 /** 6450 * Returns where, if anywhere, words that are longer than the view 6451 * is wide should be ellipsized. 6452 */ 6453 @ViewDebug.ExportedProperty 6454 public TextUtils.TruncateAt getEllipsize() { 6455 return mEllipsize; 6456 } 6457 6458 /** 6459 * Set the TextView so that when it takes focus, all the text is 6460 * selected. 6461 * 6462 * @attr ref android.R.styleable#TextView_selectAllOnFocus 6463 */ 6464 @android.view.RemotableViewMethod 6465 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 6466 mSelectAllOnFocus = selectAllOnFocus; 6467 6468 if (selectAllOnFocus && !(mText instanceof Spannable)) { 6469 setText(mText, BufferType.SPANNABLE); 6470 } 6471 } 6472 6473 /** 6474 * Set whether the cursor is visible. The default is true. 6475 * 6476 * @attr ref android.R.styleable#TextView_cursorVisible 6477 */ 6478 @android.view.RemotableViewMethod 6479 public void setCursorVisible(boolean visible) { 6480 mCursorVisible = visible; 6481 invalidate(); 6482 6483 makeBlink(); 6484 6485 // InsertionPointCursorController depends on mCursorVisible 6486 prepareCursorControllers(); 6487 } 6488 6489 private boolean canMarquee() { 6490 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6491 return width > 0 && mLayout.getLineWidth(0) > width; 6492 } 6493 6494 private void startMarquee() { 6495 // Do not ellipsize EditText 6496 if (mInput != null) return; 6497 6498 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 6499 return; 6500 } 6501 6502 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 6503 getLineCount() == 1 && canMarquee()) { 6504 6505 if (mMarquee == null) mMarquee = new Marquee(this); 6506 mMarquee.start(mMarqueeRepeatLimit); 6507 } 6508 } 6509 6510 private void stopMarquee() { 6511 if (mMarquee != null && !mMarquee.isStopped()) { 6512 mMarquee.stop(); 6513 } 6514 } 6515 6516 private void startStopMarquee(boolean start) { 6517 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6518 if (start) { 6519 startMarquee(); 6520 } else { 6521 stopMarquee(); 6522 } 6523 } 6524 } 6525 6526 private static final class Marquee extends Handler { 6527 // TODO: Add an option to configure this 6528 private static final float MARQUEE_DELTA_MAX = 0.07f; 6529 private static final int MARQUEE_DELAY = 1200; 6530 private static final int MARQUEE_RESTART_DELAY = 1200; 6531 private static final int MARQUEE_RESOLUTION = 1000 / 30; 6532 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 6533 6534 private static final byte MARQUEE_STOPPED = 0x0; 6535 private static final byte MARQUEE_STARTING = 0x1; 6536 private static final byte MARQUEE_RUNNING = 0x2; 6537 6538 private static final int MESSAGE_START = 0x1; 6539 private static final int MESSAGE_TICK = 0x2; 6540 private static final int MESSAGE_RESTART = 0x3; 6541 6542 private final WeakReference<TextView> mView; 6543 6544 private byte mStatus = MARQUEE_STOPPED; 6545 private final float mScrollUnit; 6546 private float mMaxScroll; 6547 float mMaxFadeScroll; 6548 private float mGhostStart; 6549 private float mGhostOffset; 6550 private float mFadeStop; 6551 private int mRepeatLimit; 6552 6553 float mScroll; 6554 6555 Marquee(TextView v) { 6556 final float density = v.getContext().getResources().getDisplayMetrics().density; 6557 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 6558 mView = new WeakReference<TextView>(v); 6559 } 6560 6561 @Override 6562 public void handleMessage(Message msg) { 6563 switch (msg.what) { 6564 case MESSAGE_START: 6565 mStatus = MARQUEE_RUNNING; 6566 tick(); 6567 break; 6568 case MESSAGE_TICK: 6569 tick(); 6570 break; 6571 case MESSAGE_RESTART: 6572 if (mStatus == MARQUEE_RUNNING) { 6573 if (mRepeatLimit >= 0) { 6574 mRepeatLimit--; 6575 } 6576 start(mRepeatLimit); 6577 } 6578 break; 6579 } 6580 } 6581 6582 void tick() { 6583 if (mStatus != MARQUEE_RUNNING) { 6584 return; 6585 } 6586 6587 removeMessages(MESSAGE_TICK); 6588 6589 final TextView textView = mView.get(); 6590 if (textView != null && (textView.isFocused() || textView.isSelected())) { 6591 mScroll += mScrollUnit; 6592 if (mScroll > mMaxScroll) { 6593 mScroll = mMaxScroll; 6594 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 6595 } else { 6596 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 6597 } 6598 textView.invalidate(); 6599 } 6600 } 6601 6602 void stop() { 6603 mStatus = MARQUEE_STOPPED; 6604 removeMessages(MESSAGE_START); 6605 removeMessages(MESSAGE_RESTART); 6606 removeMessages(MESSAGE_TICK); 6607 resetScroll(); 6608 } 6609 6610 private void resetScroll() { 6611 mScroll = 0.0f; 6612 final TextView textView = mView.get(); 6613 if (textView != null) textView.invalidate(); 6614 } 6615 6616 void start(int repeatLimit) { 6617 if (repeatLimit == 0) { 6618 stop(); 6619 return; 6620 } 6621 mRepeatLimit = repeatLimit; 6622 final TextView textView = mView.get(); 6623 if (textView != null && textView.mLayout != null) { 6624 mStatus = MARQUEE_STARTING; 6625 mScroll = 0.0f; 6626 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 6627 textView.getCompoundPaddingRight(); 6628 final float lineWidth = textView.mLayout.getLineWidth(0); 6629 final float gap = textWidth / 3.0f; 6630 mGhostStart = lineWidth - textWidth + gap; 6631 mMaxScroll = mGhostStart + textWidth; 6632 mGhostOffset = lineWidth + gap; 6633 mFadeStop = lineWidth + textWidth / 6.0f; 6634 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 6635 6636 textView.invalidate(); 6637 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 6638 } 6639 } 6640 6641 float getGhostOffset() { 6642 return mGhostOffset; 6643 } 6644 6645 boolean shouldDrawLeftFade() { 6646 return mScroll <= mFadeStop; 6647 } 6648 6649 boolean shouldDrawGhost() { 6650 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 6651 } 6652 6653 boolean isRunning() { 6654 return mStatus == MARQUEE_RUNNING; 6655 } 6656 6657 boolean isStopped() { 6658 return mStatus == MARQUEE_STOPPED; 6659 } 6660 } 6661 6662 /** 6663 * This method is called when the text is changed, in case any 6664 * subclasses would like to know. 6665 * 6666 * @param text The text the TextView is displaying. 6667 * @param start The offset of the start of the range of the text 6668 * that was modified. 6669 * @param before The offset of the former end of the range of the 6670 * text that was modified. If text was simply inserted, 6671 * this will be the same as <code>start</code>. 6672 * If text was replaced with new text or deleted, the 6673 * length of the old text was <code>before-start</code>. 6674 * @param after The offset of the end of the range of the text 6675 * that was modified. If text was simply deleted, 6676 * this will be the same as <code>start</code>. 6677 * If text was replaced with new text or inserted, 6678 * the length of the new text is <code>after-start</code>. 6679 */ 6680 protected void onTextChanged(CharSequence text, 6681 int start, int before, int after) { 6682 } 6683 6684 /** 6685 * This method is called when the selection has changed, in case any 6686 * subclasses would like to know. 6687 * 6688 * @param selStart The new selection start location. 6689 * @param selEnd The new selection end location. 6690 */ 6691 protected void onSelectionChanged(int selStart, int selEnd) { 6692 } 6693 6694 /** 6695 * Adds a TextWatcher to the list of those whose methods are called 6696 * whenever this TextView's text changes. 6697 * <p> 6698 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 6699 * not called after {@link #setText} calls. Now, doing {@link #setText} 6700 * if there are any text changed listeners forces the buffer type to 6701 * Editable if it would not otherwise be and does call this method. 6702 */ 6703 public void addTextChangedListener(TextWatcher watcher) { 6704 if (mListeners == null) { 6705 mListeners = new ArrayList<TextWatcher>(); 6706 } 6707 6708 mListeners.add(watcher); 6709 } 6710 6711 /** 6712 * Removes the specified TextWatcher from the list of those whose 6713 * methods are called 6714 * whenever this TextView's text changes. 6715 */ 6716 public void removeTextChangedListener(TextWatcher watcher) { 6717 if (mListeners != null) { 6718 int i = mListeners.indexOf(watcher); 6719 6720 if (i >= 0) { 6721 mListeners.remove(i); 6722 } 6723 } 6724 } 6725 6726 private void sendBeforeTextChanged(CharSequence text, int start, int before, 6727 int after) { 6728 if (mListeners != null) { 6729 final ArrayList<TextWatcher> list = mListeners; 6730 final int count = list.size(); 6731 for (int i = 0; i < count; i++) { 6732 list.get(i).beforeTextChanged(text, start, before, after); 6733 } 6734 } 6735 } 6736 6737 /** 6738 * Not private so it can be called from an inner class without going 6739 * through a thunk. 6740 */ 6741 void sendOnTextChanged(CharSequence text, int start, int before, 6742 int after) { 6743 if (mListeners != null) { 6744 final ArrayList<TextWatcher> list = mListeners; 6745 final int count = list.size(); 6746 for (int i = 0; i < count; i++) { 6747 list.get(i).onTextChanged(text, start, before, after); 6748 } 6749 } 6750 } 6751 6752 /** 6753 * Not private so it can be called from an inner class without going 6754 * through a thunk. 6755 */ 6756 void sendAfterTextChanged(Editable text) { 6757 if (mListeners != null) { 6758 final ArrayList<TextWatcher> list = mListeners; 6759 final int count = list.size(); 6760 for (int i = 0; i < count; i++) { 6761 list.get(i).afterTextChanged(text); 6762 } 6763 } 6764 } 6765 6766 /** 6767 * Not private so it can be called from an inner class without going 6768 * through a thunk. 6769 */ 6770 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 6771 final InputMethodState ims = mInputMethodState; 6772 if (ims == null || ims.mBatchEditNesting == 0) { 6773 updateAfterEdit(); 6774 } 6775 if (ims != null) { 6776 ims.mContentChanged = true; 6777 if (ims.mChangedStart < 0) { 6778 ims.mChangedStart = start; 6779 ims.mChangedEnd = start+before; 6780 } else { 6781 ims.mChangedStart = Math.min(ims.mChangedStart, start); 6782 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 6783 } 6784 ims.mChangedDelta += after-before; 6785 } 6786 6787 sendOnTextChanged(buffer, start, before, after); 6788 onTextChanged(buffer, start, before, after); 6789 6790 // Hide the controllers if the amount of content changed 6791 if (before != after) { 6792 hideControllers(); 6793 } 6794 } 6795 6796 /** 6797 * Not private so it can be called from an inner class without going 6798 * through a thunk. 6799 */ 6800 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 6801 // XXX Make the start and end move together if this ends up 6802 // spending too much time invalidating. 6803 6804 boolean selChanged = false; 6805 int newSelStart=-1, newSelEnd=-1; 6806 6807 final InputMethodState ims = mInputMethodState; 6808 6809 if (what == Selection.SELECTION_END) { 6810 mHighlightPathBogus = true; 6811 selChanged = true; 6812 newSelEnd = newStart; 6813 6814 if (!isFocused()) { 6815 mSelectionMoved = true; 6816 } 6817 6818 if (oldStart >= 0 || newStart >= 0) { 6819 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 6820 registerForPreDraw(); 6821 6822 if (isFocused()) { 6823 mShowCursor = SystemClock.uptimeMillis(); 6824 makeBlink(); 6825 } 6826 } 6827 } 6828 6829 if (what == Selection.SELECTION_START) { 6830 mHighlightPathBogus = true; 6831 selChanged = true; 6832 newSelStart = newStart; 6833 6834 if (!isFocused()) { 6835 mSelectionMoved = true; 6836 } 6837 6838 if (oldStart >= 0 || newStart >= 0) { 6839 int end = Selection.getSelectionEnd(buf); 6840 invalidateCursor(end, oldStart, newStart); 6841 } 6842 } 6843 6844 if (selChanged) { 6845 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 6846 if (newSelStart < 0) { 6847 newSelStart = Selection.getSelectionStart(buf); 6848 } 6849 if (newSelEnd < 0) { 6850 newSelEnd = Selection.getSelectionEnd(buf); 6851 } 6852 onSelectionChanged(newSelStart, newSelEnd); 6853 } 6854 } 6855 6856 if (what instanceof UpdateAppearance || 6857 what instanceof ParagraphStyle) { 6858 if (ims == null || ims.mBatchEditNesting == 0) { 6859 invalidate(); 6860 mHighlightPathBogus = true; 6861 checkForResize(); 6862 } else { 6863 ims.mContentChanged = true; 6864 } 6865 } 6866 6867 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 6868 mHighlightPathBogus = true; 6869 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 6870 ims.mSelectionModeChanged = true; 6871 } 6872 6873 if (Selection.getSelectionStart(buf) >= 0) { 6874 if (ims == null || ims.mBatchEditNesting == 0) { 6875 invalidateCursor(); 6876 } else { 6877 ims.mCursorChanged = true; 6878 } 6879 } 6880 } 6881 6882 if (what instanceof ParcelableSpan) { 6883 // If this is a span that can be sent to a remote process, 6884 // the current extract editor would be interested in it. 6885 if (ims != null && ims.mExtracting != null) { 6886 if (ims.mBatchEditNesting != 0) { 6887 if (oldStart >= 0) { 6888 if (ims.mChangedStart > oldStart) { 6889 ims.mChangedStart = oldStart; 6890 } 6891 if (ims.mChangedStart > oldEnd) { 6892 ims.mChangedStart = oldEnd; 6893 } 6894 } 6895 if (newStart >= 0) { 6896 if (ims.mChangedStart > newStart) { 6897 ims.mChangedStart = newStart; 6898 } 6899 if (ims.mChangedStart > newEnd) { 6900 ims.mChangedStart = newEnd; 6901 } 6902 } 6903 } else { 6904 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 6905 + oldStart + "-" + oldEnd + "," 6906 + newStart + "-" + newEnd + what); 6907 ims.mContentChanged = true; 6908 } 6909 } 6910 } 6911 } 6912 6913 private class ChangeWatcher 6914 implements TextWatcher, SpanWatcher { 6915 6916 private CharSequence mBeforeText; 6917 6918 public void beforeTextChanged(CharSequence buffer, int start, 6919 int before, int after) { 6920 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 6921 + " before=" + before + " after=" + after + ": " + buffer); 6922 6923 if (AccessibilityManager.getInstance(mContext).isEnabled() 6924 && !isPasswordInputType(mInputType) 6925 && !hasPasswordTransformationMethod()) { 6926 mBeforeText = buffer.toString(); 6927 } 6928 6929 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 6930 } 6931 6932 public void onTextChanged(CharSequence buffer, int start, 6933 int before, int after) { 6934 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 6935 + " before=" + before + " after=" + after + ": " + buffer); 6936 TextView.this.handleTextChanged(buffer, start, before, after); 6937 6938 if (AccessibilityManager.getInstance(mContext).isEnabled() && 6939 (isFocused() || isSelected() && 6940 isShown())) { 6941 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 6942 mBeforeText = null; 6943 } 6944 } 6945 6946 public void afterTextChanged(Editable buffer) { 6947 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 6948 TextView.this.sendAfterTextChanged(buffer); 6949 6950 if (MetaKeyKeyListener.getMetaState(buffer, 6951 MetaKeyKeyListener.META_SELECTING) != 0) { 6952 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 6953 } 6954 } 6955 6956 public void onSpanChanged(Spannable buf, 6957 Object what, int s, int e, int st, int en) { 6958 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 6959 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 6960 TextView.this.spanChange(buf, what, s, st, e, en); 6961 } 6962 6963 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 6964 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 6965 + " what=" + what + ": " + buf); 6966 TextView.this.spanChange(buf, what, -1, s, -1, e); 6967 } 6968 6969 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 6970 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 6971 + " what=" + what + ": " + buf); 6972 TextView.this.spanChange(buf, what, s, -1, e, -1); 6973 } 6974 } 6975 6976 private void makeBlink() { 6977 if (!mCursorVisible || !isTextEditable()) { 6978 if (mBlink != null) { 6979 mBlink.removeCallbacks(mBlink); 6980 } 6981 6982 return; 6983 } 6984 6985 if (mBlink == null) 6986 mBlink = new Blink(this); 6987 6988 mBlink.removeCallbacks(mBlink); 6989 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 6990 } 6991 6992 /** 6993 * @hide 6994 */ 6995 @Override 6996 public void dispatchFinishTemporaryDetach() { 6997 mDispatchTemporaryDetach = true; 6998 super.dispatchFinishTemporaryDetach(); 6999 mDispatchTemporaryDetach = false; 7000 } 7001 7002 @Override 7003 public void onStartTemporaryDetach() { 7004 super.onStartTemporaryDetach(); 7005 // Only track when onStartTemporaryDetach() is called directly, 7006 // usually because this instance is an editable field in a list 7007 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 7008 } 7009 7010 @Override 7011 public void onFinishTemporaryDetach() { 7012 super.onFinishTemporaryDetach(); 7013 // Only track when onStartTemporaryDetach() is called directly, 7014 // usually because this instance is an editable field in a list 7015 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 7016 } 7017 7018 @Override 7019 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 7020 if (mTemporaryDetach) { 7021 // If we are temporarily in the detach state, then do nothing. 7022 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7023 return; 7024 } 7025 7026 mShowCursor = SystemClock.uptimeMillis(); 7027 7028 ensureEndedBatchEdit(); 7029 7030 if (focused) { 7031 int selStart = getSelectionStart(); 7032 int selEnd = getSelectionEnd(); 7033 7034 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 7035 // mode for these, unless there was a specific selection already started. 7036 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 7037 selEnd == mText.length(); 7038 mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted; 7039 7040 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 7041 // If a tap was used to give focus to that view, move cursor at tap position. 7042 // Has to be done before onTakeFocus, which can be overloaded. 7043 final int lastTapPosition = getLastTapPosition(); 7044 if (lastTapPosition >= 0) { 7045 Selection.setSelection((Spannable) mText, lastTapPosition); 7046 } 7047 7048 if (mMovement != null) { 7049 mMovement.onTakeFocus(this, (Spannable) mText, direction); 7050 } 7051 7052 // The DecorView does not have focus when the 'Done' ExtractEditText button is 7053 // pressed. Since it is the ViewRoot's mView, it requests focus before 7054 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 7055 // This special case ensure that we keep current selection in that case. 7056 // It would be better to know why the DecorView does not have focus at that time. 7057 if (((this instanceof ExtractEditText) || mSelectionMoved) && 7058 selStart >= 0 && selEnd >= 0) { 7059 /* 7060 * Someone intentionally set the selection, so let them 7061 * do whatever it is that they wanted to do instead of 7062 * the default on-focus behavior. We reset the selection 7063 * here instead of just skipping the onTakeFocus() call 7064 * because some movement methods do something other than 7065 * just setting the selection in theirs and we still 7066 * need to go through that path. 7067 */ 7068 Selection.setSelection((Spannable) mText, selStart, selEnd); 7069 } 7070 7071 if (mSelectAllOnFocus) { 7072 selectAll(); 7073 } 7074 7075 mTouchFocusSelected = true; 7076 } 7077 7078 mFrozenWithFocus = false; 7079 mSelectionMoved = false; 7080 7081 if (mText instanceof Spannable) { 7082 Spannable sp = (Spannable) mText; 7083 MetaKeyKeyListener.resetMetaState(sp); 7084 } 7085 7086 makeBlink(); 7087 7088 if (mError != null) { 7089 showError(); 7090 } 7091 } else { 7092 if (mError != null) { 7093 hideError(); 7094 } 7095 // Don't leave us in the middle of a batch edit. 7096 onEndBatchEdit(); 7097 7098 hideInsertionPointCursorController(); 7099 if (this instanceof ExtractEditText) { 7100 // terminateTextSelectionMode removes selection, which we want to keep when 7101 // ExtractEditText goes out of focus. 7102 final int selStart = getSelectionStart(); 7103 final int selEnd = getSelectionEnd(); 7104 terminateSelectionActionMode(); 7105 Selection.setSelection((Spannable) mText, selStart, selEnd); 7106 } else { 7107 terminateSelectionActionMode(); 7108 } 7109 7110 // No need to create the controller 7111 if (mSelectionModifierCursorController != null) { 7112 mSelectionModifierCursorController.resetTouchOffsets(); 7113 } 7114 } 7115 7116 startStopMarquee(focused); 7117 7118 if (mTransformation != null) { 7119 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 7120 } 7121 7122 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7123 } 7124 7125 private int getLastTapPosition() { 7126 // No need to create the controller at that point, no last tap position saved 7127 if (mSelectionModifierCursorController != null) { 7128 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 7129 if (lastTapPosition >= 0) { 7130 // Safety check, should not be possible. 7131 if (lastTapPosition > mText.length()) { 7132 Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs " 7133 + mText.length() + ")"); 7134 lastTapPosition = mText.length(); 7135 } 7136 return lastTapPosition; 7137 } 7138 } 7139 7140 return -1; 7141 } 7142 7143 @Override 7144 public void onWindowFocusChanged(boolean hasWindowFocus) { 7145 super.onWindowFocusChanged(hasWindowFocus); 7146 7147 if (hasWindowFocus) { 7148 if (mBlink != null) { 7149 mBlink.uncancel(); 7150 7151 if (isFocused()) { 7152 mShowCursor = SystemClock.uptimeMillis(); 7153 makeBlink(); 7154 } 7155 } 7156 } else { 7157 if (mBlink != null) { 7158 mBlink.cancel(); 7159 } 7160 // Don't leave us in the middle of a batch edit. 7161 onEndBatchEdit(); 7162 if (mInputContentType != null) { 7163 mInputContentType.enterDown = false; 7164 } 7165 hideControllers(); 7166 } 7167 7168 startStopMarquee(hasWindowFocus); 7169 } 7170 7171 @Override 7172 protected void onVisibilityChanged(View changedView, int visibility) { 7173 super.onVisibilityChanged(changedView, visibility); 7174 if (visibility != VISIBLE) { 7175 hideControllers(); 7176 } 7177 } 7178 7179 /** 7180 * Use {@link BaseInputConnection#removeComposingSpans 7181 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 7182 * state from this text view. 7183 */ 7184 public void clearComposingText() { 7185 if (mText instanceof Spannable) { 7186 BaseInputConnection.removeComposingSpans((Spannable)mText); 7187 } 7188 } 7189 7190 @Override 7191 public void setSelected(boolean selected) { 7192 boolean wasSelected = isSelected(); 7193 7194 super.setSelected(selected); 7195 7196 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7197 if (selected) { 7198 startMarquee(); 7199 } else { 7200 stopMarquee(); 7201 } 7202 } 7203 } 7204 7205 class CommitSelectionReceiver extends ResultReceiver { 7206 private final int mPrevStart, mPrevEnd; 7207 7208 public CommitSelectionReceiver(int prevStart, int prevEnd) { 7209 super(getHandler()); 7210 mPrevStart = prevStart; 7211 mPrevEnd = prevEnd; 7212 } 7213 7214 @Override 7215 protected void onReceiveResult(int resultCode, Bundle resultData) { 7216 // If this tap was actually used to show the IMM, leave cursor or selection unchanged 7217 // by restoring its previous position. 7218 if (resultCode == InputMethodManager.RESULT_SHOWN) { 7219 final int len = mText.length(); 7220 int start = Math.min(len, mPrevStart); 7221 int end = Math.min(len, mPrevEnd); 7222 Selection.setSelection((Spannable)mText, start, end); 7223 7224 boolean selectAllGotFocus = mSelectAllOnFocus && mTouchFocusSelected; 7225 if (hasSelection() && !selectAllGotFocus) { 7226 startSelectionActionMode(); 7227 } 7228 } 7229 } 7230 } 7231 7232 @Override 7233 public boolean onTouchEvent(MotionEvent event) { 7234 final int action = event.getActionMasked(); 7235 7236 if (hasInsertionController()) { 7237 getInsertionController().onTouchEvent(event); 7238 } 7239 if (hasSelectionController()) { 7240 getSelectionController().onTouchEvent(event); 7241 } 7242 7243 if (action == MotionEvent.ACTION_DOWN) { 7244 mLastDownPositionX = (int) event.getX(); 7245 mLastDownPositionY = (int) event.getY(); 7246 7247 // Reset this state; it will be re-set if super.onTouchEvent 7248 // causes focus to move to the view. 7249 mTouchFocusSelected = false; 7250 mIgnoreActionUpEvent = false; 7251 } 7252 7253 final boolean superResult = super.onTouchEvent(event); 7254 7255 /* 7256 * Don't handle the release after a long press, because it will 7257 * move the selection away from whatever the menu action was 7258 * trying to affect. 7259 */ 7260 if (mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 7261 mDiscardNextActionUp = false; 7262 return superResult; 7263 } 7264 7265 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 7266 && mText instanceof Spannable && mLayout != null) { 7267 boolean handled = false; 7268 7269 // Save previous selection, in case this event is used to show the IME. 7270 int oldSelStart = getSelectionStart(); 7271 int oldSelEnd = getSelectionEnd(); 7272 7273 final int oldScrollX = mScrollX; 7274 final int oldScrollY = mScrollY; 7275 7276 if (mMovement != null) { 7277 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 7278 } 7279 7280 if (mLinksClickable && mAutoLinkMask != 0 && mTextIsSelectable && 7281 action == MotionEvent.ACTION_UP && !mIgnoreActionUpEvent && isFocused()) { 7282 // The LinkMovementMethod which should handle taps on links has not been installed 7283 // to support text selection. We reproduce its behavior here to open links. 7284 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 7285 getSelectionEnd(), ClickableSpan.class); 7286 7287 if (links.length != 0) { 7288 links[0].onClick(this); 7289 handled = true; 7290 } 7291 } 7292 7293 if (isTextEditable() || mTextIsSelectable) { 7294 if (mScrollX != oldScrollX || mScrollY != oldScrollY) { 7295 // Hide insertion anchor while scrolling. Leave selection. 7296 hideInsertionPointCursorController(); 7297 // No need to create the controller, since there is nothing to update. 7298 if (mSelectionModifierCursorController != null && 7299 mSelectionModifierCursorController.isShowing()) { 7300 mSelectionModifierCursorController.updatePosition(); 7301 } 7302 } 7303 if (action == MotionEvent.ACTION_UP && !mIgnoreActionUpEvent && isFocused()) { 7304 InputMethodManager imm = (InputMethodManager) 7305 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 7306 7307 CommitSelectionReceiver csr = null; 7308 if (getSelectionStart() != oldSelStart || getSelectionEnd() != oldSelEnd || 7309 didTouchFocusSelect()) { 7310 csr = new CommitSelectionReceiver(oldSelStart, oldSelEnd); 7311 } 7312 7313 if (!mTextIsSelectable) { 7314 // Show the IME, except when selecting in read-only text. 7315 handled |= imm.showSoftInput(this, 0, csr) && (csr != null); 7316 } 7317 7318 stopSelectionActionMode(); 7319 boolean selectAllGotFocus = mSelectAllOnFocus && mTouchFocusSelected; 7320 if (hasInsertionController() && !selectAllGotFocus) { 7321 getInsertionController().show(); 7322 } 7323 } 7324 } 7325 7326 if (handled) { 7327 return true; 7328 } 7329 } 7330 7331 return superResult; 7332 } 7333 7334 private void prepareCursorControllers() { 7335 boolean windowSupportsHandles = false; 7336 7337 ViewGroup.LayoutParams params = getRootView().getLayoutParams(); 7338 if (params instanceof WindowManager.LayoutParams) { 7339 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 7340 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 7341 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 7342 } 7343 7344 mInsertionControllerEnabled = windowSupportsHandles && isTextEditable() && mCursorVisible && 7345 mLayout != null; 7346 mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() && 7347 mLayout != null; 7348 7349 if (!mInsertionControllerEnabled) { 7350 hideInsertionPointCursorController(); 7351 mInsertionPointCursorController = null; 7352 } 7353 7354 if (!mSelectionControllerEnabled) { 7355 stopSelectionActionMode(); 7356 mSelectionModifierCursorController = null; 7357 } 7358 } 7359 7360 /** 7361 * @return True iff this TextView contains a text that can be edited, or if this is 7362 * a selectable TextView. 7363 */ 7364 private boolean isTextEditable() { 7365 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 7366 } 7367 7368 /** 7369 * Returns true, only while processing a touch gesture, if the initial 7370 * touch down event caused focus to move to the text view and as a result 7371 * its selection changed. Only valid while processing the touch gesture 7372 * of interest. 7373 */ 7374 public boolean didTouchFocusSelect() { 7375 return mTouchFocusSelected; 7376 } 7377 7378 @Override 7379 public void cancelLongPress() { 7380 super.cancelLongPress(); 7381 mIgnoreActionUpEvent = true; 7382 } 7383 7384 @Override 7385 public boolean onTrackballEvent(MotionEvent event) { 7386 if (mMovement != null && mText instanceof Spannable && 7387 mLayout != null) { 7388 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 7389 return true; 7390 } 7391 } 7392 7393 return super.onTrackballEvent(event); 7394 } 7395 7396 public void setScroller(Scroller s) { 7397 mScroller = s; 7398 } 7399 7400 private static class Blink extends Handler implements Runnable { 7401 private final WeakReference<TextView> mView; 7402 private boolean mCancelled; 7403 7404 public Blink(TextView v) { 7405 mView = new WeakReference<TextView>(v); 7406 } 7407 7408 public void run() { 7409 if (mCancelled) { 7410 return; 7411 } 7412 7413 removeCallbacks(Blink.this); 7414 7415 TextView tv = mView.get(); 7416 7417 if (tv != null && tv.isFocused()) { 7418 int st = tv.getSelectionStart(); 7419 int en = tv.getSelectionEnd(); 7420 7421 if (st == en && st >= 0 && en >= 0) { 7422 if (tv.mLayout != null) { 7423 tv.invalidateCursorPath(); 7424 } 7425 7426 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 7427 } 7428 } 7429 } 7430 7431 void cancel() { 7432 if (!mCancelled) { 7433 removeCallbacks(Blink.this); 7434 mCancelled = true; 7435 } 7436 } 7437 7438 void uncancel() { 7439 mCancelled = false; 7440 } 7441 } 7442 7443 @Override 7444 protected float getLeftFadingEdgeStrength() { 7445 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7446 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7447 if (mMarquee != null && !mMarquee.isStopped()) { 7448 final Marquee marquee = mMarquee; 7449 if (marquee.shouldDrawLeftFade()) { 7450 return marquee.mScroll / getHorizontalFadingEdgeLength(); 7451 } else { 7452 return 0.0f; 7453 } 7454 } else if (getLineCount() == 1) { 7455 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7456 case Gravity.LEFT: 7457 return 0.0f; 7458 case Gravity.RIGHT: 7459 return (mLayout.getLineRight(0) - (mRight - mLeft) - 7460 getCompoundPaddingLeft() - getCompoundPaddingRight() - 7461 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 7462 case Gravity.CENTER_HORIZONTAL: 7463 return 0.0f; 7464 } 7465 } 7466 } 7467 return super.getLeftFadingEdgeStrength(); 7468 } 7469 7470 @Override 7471 protected float getRightFadingEdgeStrength() { 7472 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7473 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7474 if (mMarquee != null && !mMarquee.isStopped()) { 7475 final Marquee marquee = mMarquee; 7476 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 7477 } else if (getLineCount() == 1) { 7478 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7479 case Gravity.LEFT: 7480 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 7481 getCompoundPaddingRight(); 7482 final float lineWidth = mLayout.getLineWidth(0); 7483 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 7484 case Gravity.RIGHT: 7485 return 0.0f; 7486 case Gravity.CENTER_HORIZONTAL: 7487 case Gravity.FILL_HORIZONTAL: 7488 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 7489 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 7490 getHorizontalFadingEdgeLength(); 7491 } 7492 } 7493 } 7494 return super.getRightFadingEdgeStrength(); 7495 } 7496 7497 @Override 7498 protected int computeHorizontalScrollRange() { 7499 if (mLayout != null) { 7500 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 7501 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 7502 } 7503 7504 return super.computeHorizontalScrollRange(); 7505 } 7506 7507 @Override 7508 protected int computeVerticalScrollRange() { 7509 if (mLayout != null) 7510 return mLayout.getHeight(); 7511 7512 return super.computeVerticalScrollRange(); 7513 } 7514 7515 @Override 7516 protected int computeVerticalScrollExtent() { 7517 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 7518 } 7519 7520 public enum BufferType { 7521 NORMAL, SPANNABLE, EDITABLE, 7522 } 7523 7524 /** 7525 * Returns the TextView_textColor attribute from the 7526 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 7527 * from the TextView_textAppearance attribute, if TextView_textColor 7528 * was not set directly. 7529 */ 7530 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 7531 ColorStateList colors; 7532 colors = attrs.getColorStateList(com.android.internal.R.styleable. 7533 TextView_textColor); 7534 7535 if (colors == null) { 7536 int ap = attrs.getResourceId(com.android.internal.R.styleable. 7537 TextView_textAppearance, -1); 7538 if (ap != -1) { 7539 TypedArray appearance; 7540 appearance = context.obtainStyledAttributes(ap, 7541 com.android.internal.R.styleable.TextAppearance); 7542 colors = appearance.getColorStateList(com.android.internal.R.styleable. 7543 TextAppearance_textColor); 7544 appearance.recycle(); 7545 } 7546 } 7547 7548 return colors; 7549 } 7550 7551 /** 7552 * Returns the default color from the TextView_textColor attribute 7553 * from the AttributeSet, if set, or the default color from the 7554 * TextAppearance_textColor from the TextView_textAppearance attribute, 7555 * if TextView_textColor was not set directly. 7556 */ 7557 public static int getTextColor(Context context, 7558 TypedArray attrs, 7559 int def) { 7560 ColorStateList colors = getTextColors(context, attrs); 7561 7562 if (colors == null) { 7563 return def; 7564 } else { 7565 return colors.getDefaultColor(); 7566 } 7567 } 7568 7569 @Override 7570 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 7571 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 7572 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 7573 switch (keyCode) { 7574 case KeyEvent.KEYCODE_A: 7575 if (canSelectText()) { 7576 return onTextContextMenuItem(ID_SELECT_ALL); 7577 } 7578 break; 7579 case KeyEvent.KEYCODE_X: 7580 if (canCut()) { 7581 return onTextContextMenuItem(ID_CUT); 7582 } 7583 break; 7584 case KeyEvent.KEYCODE_C: 7585 if (canCopy()) { 7586 return onTextContextMenuItem(ID_COPY); 7587 } 7588 break; 7589 case KeyEvent.KEYCODE_V: 7590 if (canPaste()) { 7591 return onTextContextMenuItem(ID_PASTE); 7592 } 7593 break; 7594 } 7595 } 7596 return super.onKeyShortcut(keyCode, event); 7597 } 7598 7599 /** 7600 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 7601 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 7602 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 7603 */ 7604 private boolean canSelectText() { 7605 return hasSelectionController() && mText.length() != 0; 7606 } 7607 7608 /** 7609 * Test based on the <i>intrinsic</i> charateristics of the TextView. 7610 * The text must be spannable and the movement method must allow for arbitary selection. 7611 * 7612 * See also {@link #canSelectText()}. 7613 */ 7614 private boolean textCanBeSelected() { 7615 // prepareCursorController() relies on this method. 7616 // If you change this condition, make sure prepareCursorController is called anywhere 7617 // the value of this condition might be changed. 7618 return mText instanceof Spannable && mMovement != null && mMovement.canSelectArbitrarily(); 7619 } 7620 7621 private boolean canCut() { 7622 if (hasPasswordTransformationMethod()) { 7623 return false; 7624 } 7625 7626 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mInput != null) { 7627 return true; 7628 } 7629 7630 return false; 7631 } 7632 7633 private boolean canCopy() { 7634 if (hasPasswordTransformationMethod()) { 7635 return false; 7636 } 7637 7638 if (mText.length() > 0 && hasSelection()) { 7639 return true; 7640 } 7641 7642 return false; 7643 } 7644 7645 private boolean canPaste() { 7646 return (mText instanceof Editable && 7647 mInput != null && 7648 getSelectionStart() >= 0 && 7649 getSelectionEnd() >= 0 && 7650 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 7651 hasPrimaryClip()); 7652 } 7653 7654 private boolean isWordCharacter(int c, int type) { 7655 return (c == '\'' || c == '"' || 7656 type == Character.UPPERCASE_LETTER || 7657 type == Character.LOWERCASE_LETTER || 7658 type == Character.TITLECASE_LETTER || 7659 type == Character.MODIFIER_LETTER || 7660 type == Character.OTHER_LETTER || // Should handle asian characters 7661 type == Character.DECIMAL_DIGIT_NUMBER); 7662 } 7663 7664 /** 7665 * Returns the offsets delimiting the 'word' located at position offset. 7666 * 7667 * @param offset An offset in the text. 7668 * @return The offsets for the start and end of the word located at <code>offset</code>. 7669 * The two ints offsets are packed in a long using {@link #packRangeInLong(int, int)}. 7670 * Returns -1 if no valid word was found. 7671 */ 7672 private long getWordLimitsAt(int offset) { 7673 int klass = mInputType & InputType.TYPE_MASK_CLASS; 7674 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 7675 7676 // Text selection is not permitted in password fields 7677 if (hasPasswordTransformationMethod()) { 7678 return -1; 7679 } 7680 7681 final int len = mText.length(); 7682 7683 // Specific text fields: always select the entire text 7684 if (klass == InputType.TYPE_CLASS_NUMBER || 7685 klass == InputType.TYPE_CLASS_PHONE || 7686 klass == InputType.TYPE_CLASS_DATETIME || 7687 variation == InputType.TYPE_TEXT_VARIATION_URI || 7688 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 7689 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 7690 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 7691 return len > 0 ? packRangeInLong(0, len) : -1; 7692 } 7693 7694 int end = Math.min(offset, len); 7695 if (end < 0) { 7696 return -1; 7697 } 7698 7699 final int MAX_LENGTH = 48; 7700 int start = end; 7701 7702 for (; start > 0; start--) { 7703 final char c = mTransformed.charAt(start - 1); 7704 final int type = Character.getType(c); 7705 if (start == end && type == Character.OTHER_PUNCTUATION) { 7706 // Cases where the text ends with a '.' and we select from the end of the line 7707 // (right after the dot), or when we select from the space character in "aaa, bbb". 7708 continue; 7709 } 7710 if (type == Character.SURROGATE) { // Two Character codepoint 7711 end = start - 1; // Recheck as a pair when scanning forward 7712 continue; 7713 } 7714 if (!isWordCharacter(c, type)) break; 7715 if ((end - start) > MAX_LENGTH) return -1; 7716 } 7717 7718 for (; end < len; end++) { 7719 final int c = Character.codePointAt(mTransformed, end); 7720 final int type = Character.getType(c); 7721 if (!isWordCharacter(c, type)) break; 7722 if ((end - start) > MAX_LENGTH) return -1; 7723 if (c > 0xFFFF) { // Two Character codepoint 7724 end++; 7725 } 7726 } 7727 7728 if (start == end) { 7729 return -1; 7730 } 7731 7732 // Two ints packed in a long 7733 return packRangeInLong(start, end); 7734 } 7735 7736 private static long packRangeInLong(int start, int end) { 7737 return (((long) start) << 32) | end; 7738 } 7739 7740 private static int extractRangeStartFromLong(long range) { 7741 return (int) (range >>> 32); 7742 } 7743 7744 private static int extractRangeEndFromLong(long range) { 7745 return (int) (range & 0x00000000FFFFFFFFL); 7746 } 7747 7748 private void selectAll() { 7749 Selection.setSelection((Spannable) mText, 0, mText.length()); 7750 } 7751 7752 private void selectCurrentWord() { 7753 if (!canSelectText()) { 7754 return; 7755 } 7756 7757 if (hasPasswordTransformationMethod()) { 7758 // Always select all on a password field. 7759 // Cut/copy menu entries are not available for passwords, but being able to select all 7760 // is however useful to delete or paste to replace the entire content. 7761 selectAll(); 7762 return; 7763 } 7764 7765 long lastTouchOffsets = getLastTouchOffsets(); 7766 final int minOffset = extractRangeStartFromLong(lastTouchOffsets); 7767 final int maxOffset = extractRangeEndFromLong(lastTouchOffsets); 7768 7769 int selectionStart, selectionEnd; 7770 7771 // If a URLSpan (web address, email, phone...) is found at that position, select it. 7772 URLSpan[] urlSpans = ((Spanned) mText).getSpans(minOffset, maxOffset, URLSpan.class); 7773 if (urlSpans.length == 1) { 7774 URLSpan url = urlSpans[0]; 7775 selectionStart = ((Spanned) mText).getSpanStart(url); 7776 selectionEnd = ((Spanned) mText).getSpanEnd(url); 7777 } else { 7778 long wordLimits = getWordLimitsAt(minOffset); 7779 if (wordLimits >= 0) { 7780 selectionStart = extractRangeStartFromLong(wordLimits); 7781 } else { 7782 selectionStart = Math.max(minOffset - 5, 0); 7783 } 7784 7785 wordLimits = getWordLimitsAt(maxOffset); 7786 if (wordLimits >= 0) { 7787 selectionEnd = extractRangeEndFromLong(wordLimits); 7788 } else { 7789 selectionEnd = Math.min(maxOffset + 5, mText.length()); 7790 } 7791 } 7792 7793 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 7794 } 7795 7796 private long getLastTouchOffsets() { 7797 int minOffset, maxOffset; 7798 7799 if (mContextMenuTriggeredByKey) { 7800 minOffset = getSelectionStart(); 7801 maxOffset = getSelectionEnd(); 7802 } else { 7803 SelectionModifierCursorController selectionController = getSelectionController(); 7804 minOffset = selectionController.getMinTouchOffset(); 7805 maxOffset = selectionController.getMaxTouchOffset(); 7806 } 7807 7808 return packRangeInLong(minOffset, maxOffset); 7809 } 7810 7811 @Override 7812 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 7813 if (!isShown()) { 7814 return false; 7815 } 7816 7817 final boolean isPassword = hasPasswordTransformationMethod(); 7818 7819 if (!isPassword) { 7820 CharSequence text = getText(); 7821 if (TextUtils.isEmpty(text)) { 7822 text = getHint(); 7823 } 7824 if (!TextUtils.isEmpty(text)) { 7825 if (text.length() > AccessibilityEvent.MAX_TEXT_LENGTH) { 7826 text = text.subSequence(0, AccessibilityEvent.MAX_TEXT_LENGTH + 1); 7827 } 7828 event.getText().add(text); 7829 } 7830 } else { 7831 event.setPassword(isPassword); 7832 } 7833 return false; 7834 } 7835 7836 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 7837 int fromIndex, int removedCount, int addedCount) { 7838 AccessibilityEvent event = 7839 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 7840 event.setFromIndex(fromIndex); 7841 event.setRemovedCount(removedCount); 7842 event.setAddedCount(addedCount); 7843 event.setBeforeText(beforeText); 7844 sendAccessibilityEventUnchecked(event); 7845 } 7846 7847 @Override 7848 protected void onCreateContextMenu(ContextMenu menu) { 7849 super.onCreateContextMenu(menu); 7850 boolean added = false; 7851 mContextMenuTriggeredByKey = mDPadCenterIsDown || mEnterKeyIsDown; 7852 // Problem with context menu on long press: the menu appears while the key in down and when 7853 // the key is released, the view does not receive the key_up event. 7854 // We need two layers of flags: mDPadCenterIsDown and mEnterKeyIsDown are set in key down/up 7855 // events. We cannot simply clear these flags in onTextContextMenuItem since 7856 // it may not be called (if the user/ discards the context menu with the back key). 7857 // We clear these flags here and mContextMenuTriggeredByKey saves that state so that it is 7858 // available in onTextContextMenuItem. 7859 mDPadCenterIsDown = mEnterKeyIsDown = false; 7860 7861 MenuHandler handler = new MenuHandler(); 7862 7863 if (mText instanceof Spanned && hasSelectionController()) { 7864 long lastTouchOffset = getLastTouchOffsets(); 7865 final int selStart = extractRangeStartFromLong(lastTouchOffset); 7866 final int selEnd = extractRangeEndFromLong(lastTouchOffset); 7867 7868 URLSpan[] urls = ((Spanned) mText).getSpans(selStart, selEnd, URLSpan.class); 7869 if (urls.length > 0) { 7870 menu.add(0, ID_COPY_URL, 0, com.android.internal.R.string.copyUrl). 7871 setOnMenuItemClickListener(handler); 7872 7873 added = true; 7874 } 7875 } 7876 7877 // The context menu is not empty, which will prevent the selection mode from starting. 7878 // Add a entry to start it in the context menu. 7879 // TODO Does not handle the case where a subclass does not call super.thisMethod or 7880 // populates the menu AFTER this call. 7881 if (menu.size() > 0) { 7882 menu.add(0, ID_SELECTION_MODE, 0, com.android.internal.R.string.selectTextMode). 7883 setOnMenuItemClickListener(handler); 7884 added = true; 7885 } 7886 7887 if (added) { 7888 menu.setHeaderTitle(com.android.internal.R.string.editTextMenuTitle); 7889 } 7890 } 7891 7892 /** 7893 * Returns whether this text view is a current input method target. The 7894 * default implementation just checks with {@link InputMethodManager}. 7895 */ 7896 public boolean isInputMethodTarget() { 7897 InputMethodManager imm = InputMethodManager.peekInstance(); 7898 return imm != null && imm.isActive(this); 7899 } 7900 7901 // Selection context mode 7902 private static final int ID_SELECT_ALL = android.R.id.selectAll; 7903 private static final int ID_CUT = android.R.id.cut; 7904 private static final int ID_COPY = android.R.id.copy; 7905 private static final int ID_PASTE = android.R.id.paste; 7906 // Context menu entries 7907 private static final int ID_COPY_URL = android.R.id.copyUrl; 7908 private static final int ID_SELECTION_MODE = android.R.id.selectTextMode; 7909 7910 private class MenuHandler implements MenuItem.OnMenuItemClickListener { 7911 public boolean onMenuItemClick(MenuItem item) { 7912 return onTextContextMenuItem(item.getItemId()); 7913 } 7914 } 7915 7916 /** 7917 * Called when a context menu option for the text view is selected. Currently 7918 * this will be {@link android.R.id#copyUrl}, {@link android.R.id#selectTextMode}, 7919 * {@link android.R.id#selectAll}, {@link android.R.id#paste}, {@link android.R.id#cut} 7920 * or {@link android.R.id#copy}. 7921 */ 7922 public boolean onTextContextMenuItem(int id) { 7923 int min = 0; 7924 int max = mText.length(); 7925 7926 if (isFocused()) { 7927 final int selStart = getSelectionStart(); 7928 final int selEnd = getSelectionEnd(); 7929 7930 min = Math.max(0, Math.min(selStart, selEnd)); 7931 max = Math.max(0, Math.max(selStart, selEnd)); 7932 } 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 updateOffset(HandleView handle, int offset); 8405 8406 public void updatePosition(); 8407 8408 public int getCurrentOffset(HandleView handle); 8409 8410 /** 8411 * This method is called by {@link #onTouchEvent(MotionEvent)} and gives the controller 8412 * a chance to become active and/or visible. 8413 * @param event The touch event 8414 */ 8415 public boolean onTouchEvent(MotionEvent event); 8416 8417 /** 8418 * Called when the view is detached from window. Perform house keeping task, such as 8419 * stopping Runnable thread that would otherwise keep a reference on the context, thus 8420 * preventing the activity to be recycled. 8421 */ 8422 public void onDetached(); 8423 } 8424 8425 private class PastePopupMenu implements OnClickListener { 8426 private final PopupWindow mContainer; 8427 private int mPositionX; 8428 private int mPositionY; 8429 private View mPasteView, mNoPasteView; 8430 8431 public PastePopupMenu() { 8432 mContainer = new PopupWindow(TextView.this.mContext, null, 8433 com.android.internal.R.attr.textSelectHandleWindowStyle); 8434 mContainer.setSplitTouchEnabled(true); 8435 mContainer.setClippingEnabled(false); 8436 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8437 8438 mContainer.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 8439 mContainer.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 8440 } 8441 8442 private void updateContent() { 8443 View view = canPaste() ? mPasteView : mNoPasteView; 8444 8445 if (view == null) { 8446 final int layout = canPaste() ? mTextEditPasteWindowLayout : 8447 mTextEditNoPasteWindowLayout; 8448 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 8449 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 8450 if (inflater != null) { 8451 view = inflater.inflate(layout, null); 8452 } 8453 8454 if (view == null) { 8455 throw new IllegalArgumentException("Unable to inflate TextEdit paste window"); 8456 } 8457 8458 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8459 view.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 8460 ViewGroup.LayoutParams.WRAP_CONTENT)); 8461 view.measure(size, size); 8462 8463 view.setOnClickListener(this); 8464 8465 if (canPaste()) mPasteView = view; 8466 else mNoPasteView = view; 8467 } 8468 8469 mContainer.setContentView(view); 8470 } 8471 8472 public void show() { 8473 updateContent(); 8474 final int[] coords = mTempCoords; 8475 TextView.this.getLocationInWindow(coords); 8476 positionAtCursor(); 8477 coords[0] += mPositionX; 8478 coords[1] += mPositionY; 8479 coords[0] = Math.max(0, coords[0]); 8480 final int screenWidth = mContext.getResources().getDisplayMetrics().widthPixels; 8481 coords[0] = Math.min(screenWidth - mContainer.getContentView().getMeasuredWidth(), 8482 coords[0]); 8483 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, coords[0], coords[1]); 8484 } 8485 8486 public void hide() { 8487 mContainer.dismiss(); 8488 } 8489 8490 public boolean isShowing() { 8491 return mContainer.isShowing(); 8492 } 8493 8494 @Override 8495 public void onClick(View v) { 8496 if (canPaste()) { 8497 paste(getSelectionStart(), getSelectionEnd()); 8498 } 8499 hide(); 8500 } 8501 8502 void positionAtCursor() { 8503 final int offset = TextView.this.getSelectionStart(); 8504 View contentView = mContainer.getContentView(); 8505 final int width = contentView.getMeasuredWidth(); 8506 final int height = contentView.getMeasuredHeight(); 8507 final int line = mLayout.getLineForOffset(offset); 8508 final int lineTop = mLayout.getLineTop(line); 8509 8510 final Rect bounds = sCursorControllerTempRect; 8511 bounds.left = (int) (mLayout.getPrimaryHorizontal(offset) - width / 2.0f); 8512 bounds.top = lineTop - height; 8513 8514 bounds.right = bounds.left + width; 8515 bounds.bottom = bounds.top + height; 8516 8517 convertFromViewportToContentCoordinates(bounds); 8518 8519 mPositionX = bounds.left; 8520 mPositionY = bounds.top; 8521 } 8522 } 8523 8524 private class HandleView extends View { 8525 private Drawable mDrawable; 8526 private final PopupWindow mContainer; 8527 private int mPositionX; 8528 private int mPositionY; 8529 private final CursorController mController; 8530 private boolean mIsDragging; 8531 private float mTouchToWindowOffsetX; 8532 private float mTouchToWindowOffsetY; 8533 private float mHotspotX; 8534 private float mHotspotY; 8535 private int mHeight; 8536 private float mTouchOffsetY; 8537 private int mLastParentX; 8538 private int mLastParentY; 8539 private float mDownPositionX, mDownPositionY; 8540 private int mContainerPositionX, mContainerPositionY; 8541 private long mTouchTimer; 8542 private boolean mIsInsertionHandle = false; 8543 private PastePopupMenu mPastePopupWindow; 8544 private Runnable mLongPressCallback; 8545 8546 // Touch-up filter: number of previous positions remembered 8547 private static final int HISTORY_SIZE = 5; 8548 private static final int TOUCH_UP_FILTER_DELAY = 150; 8549 private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; 8550 private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; 8551 private int mPreviousOffsetIndex = 0; 8552 private int mNumberPreviousOffsets = 0; 8553 8554 public void startTouchUpFilter(int offset) { 8555 mNumberPreviousOffsets = 0; 8556 addPositionToTouchUpFilter(offset); 8557 } 8558 8559 public void addPositionToTouchUpFilter(int offset) { 8560 if (mNumberPreviousOffsets > 0 && 8561 mPreviousOffsets[mPreviousOffsetIndex] == offset) { 8562 // Make sure only actual changes of position are recorded. 8563 return; 8564 } 8565 8566 mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; 8567 mPreviousOffsets[mPreviousOffsetIndex] = offset; 8568 mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); 8569 mNumberPreviousOffsets++; 8570 } 8571 8572 public void filterOnTouchUp() { 8573 final long now = SystemClock.uptimeMillis(); 8574 int i = 0; 8575 int index = 0; 8576 final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); 8577 while (i < iMax) { 8578 index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; 8579 if ((now - mPreviousOffsetsTimes[index]) >= TOUCH_UP_FILTER_DELAY) break; 8580 i++; 8581 } 8582 8583 mController.updateOffset(this, mPreviousOffsets[index]); 8584 } 8585 8586 public static final int LEFT = 0; 8587 public static final int CENTER = 1; 8588 public static final int RIGHT = 2; 8589 8590 public HandleView(CursorController controller, int pos) { 8591 super(TextView.this.mContext); 8592 mController = controller; 8593 mContainer = new PopupWindow(TextView.this.mContext, null, 8594 com.android.internal.R.attr.textSelectHandleWindowStyle); 8595 mContainer.setSplitTouchEnabled(true); 8596 mContainer.setClippingEnabled(false); 8597 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8598 8599 setOrientation(pos); 8600 } 8601 8602 public void setOrientation(int pos) { 8603 int handleWidth; 8604 switch (pos) { 8605 case LEFT: { 8606 if (mSelectHandleLeft == null) { 8607 mSelectHandleLeft = mContext.getResources().getDrawable( 8608 mTextSelectHandleLeftRes); 8609 } 8610 mDrawable = mSelectHandleLeft; 8611 handleWidth = mDrawable.getIntrinsicWidth(); 8612 mHotspotX = (handleWidth * 3) / 4; 8613 break; 8614 } 8615 8616 case RIGHT: { 8617 if (mSelectHandleRight == null) { 8618 mSelectHandleRight = mContext.getResources().getDrawable( 8619 mTextSelectHandleRightRes); 8620 } 8621 mDrawable = mSelectHandleRight; 8622 handleWidth = mDrawable.getIntrinsicWidth(); 8623 mHotspotX = handleWidth / 4; 8624 break; 8625 } 8626 8627 case CENTER: 8628 default: { 8629 if (mSelectHandleCenter == null) { 8630 mSelectHandleCenter = mContext.getResources().getDrawable( 8631 mTextSelectHandleRes); 8632 } 8633 mDrawable = mSelectHandleCenter; 8634 handleWidth = mDrawable.getIntrinsicWidth(); 8635 mHotspotX = handleWidth / 2; 8636 mIsInsertionHandle = true; 8637 break; 8638 } 8639 } 8640 8641 final int handleHeight = mDrawable.getIntrinsicHeight(); 8642 8643 mTouchOffsetY = -handleHeight * 0.3f; 8644 mHotspotY = 0; 8645 mHeight = handleHeight; 8646 invalidate(); 8647 } 8648 8649 @Override 8650 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 8651 setMeasuredDimension(mDrawable.getIntrinsicWidth(), 8652 mDrawable.getIntrinsicHeight()); 8653 } 8654 8655 public void show() { 8656 if (!isPositionVisible()) { 8657 hide(); 8658 return; 8659 } 8660 mContainer.setContentView(this); 8661 final int[] coords = mTempCoords; 8662 TextView.this.getLocationInWindow(coords); 8663 mContainerPositionX = coords[0] + mPositionX; 8664 mContainerPositionY = coords[1] + mPositionY; 8665 mContainer.showAtLocation(TextView.this, 0, mContainerPositionX, mContainerPositionY); 8666 8667 // Hide paste view when handle is moved on screen. 8668 if (mPastePopupWindow != null) { 8669 mPastePopupWindow.hide(); 8670 } 8671 } 8672 8673 public void hide() { 8674 mIsDragging = false; 8675 mContainer.dismiss(); 8676 if (mPastePopupWindow != null) { 8677 mPastePopupWindow.hide(); 8678 } 8679 } 8680 8681 public boolean isShowing() { 8682 return mContainer.isShowing(); 8683 } 8684 8685 private boolean isPositionVisible() { 8686 // Always show a dragging handle. 8687 if (mIsDragging) { 8688 return true; 8689 } 8690 8691 if (isInBatchEditMode()) { 8692 return false; 8693 } 8694 8695 final int extendedPaddingTop = getExtendedPaddingTop(); 8696 final int extendedPaddingBottom = getExtendedPaddingBottom(); 8697 final int compoundPaddingLeft = getCompoundPaddingLeft(); 8698 final int compoundPaddingRight = getCompoundPaddingRight(); 8699 8700 final TextView hostView = TextView.this; 8701 final int left = 0; 8702 final int right = hostView.getWidth(); 8703 final int top = 0; 8704 final int bottom = hostView.getHeight(); 8705 8706 if (mTempRect == null) { 8707 mTempRect = new Rect(); 8708 } 8709 final Rect clip = mTempRect; 8710 clip.left = left + compoundPaddingLeft; 8711 clip.top = top + extendedPaddingTop; 8712 clip.right = right - compoundPaddingRight; 8713 clip.bottom = bottom - extendedPaddingBottom; 8714 8715 final ViewParent parent = hostView.getParent(); 8716 if (parent == null || !parent.getChildVisibleRect(hostView, clip, null)) { 8717 return false; 8718 } 8719 8720 final int[] coords = mTempCoords; 8721 hostView.getLocationInWindow(coords); 8722 final int posX = coords[0] + mPositionX + (int) mHotspotX; 8723 final int posY = coords[1] + mPositionY + (int) mHotspotY; 8724 8725 return posX >= clip.left && posX <= clip.right && 8726 posY >= clip.top && posY <= clip.bottom; 8727 } 8728 8729 private void moveTo(int x, int y) { 8730 mPositionX = x - TextView.this.mScrollX; 8731 mPositionY = y - TextView.this.mScrollY; 8732 if (isPositionVisible()) { 8733 int[] coords = null; 8734 if (mContainer.isShowing()) { 8735 coords = mTempCoords; 8736 TextView.this.getLocationInWindow(coords); 8737 final int containerPositionX = coords[0] + mPositionX; 8738 final int containerPositionY = coords[1] + mPositionY; 8739 8740 if (containerPositionX != mContainerPositionX || 8741 containerPositionY != mContainerPositionY) { 8742 mContainerPositionX = containerPositionX; 8743 mContainerPositionY = containerPositionY; 8744 8745 mContainer.update(mContainerPositionX, mContainerPositionY, 8746 mRight - mLeft, mBottom - mTop); 8747 8748 // Hide paste popup window as soon as a scroll occurs. 8749 if (mPastePopupWindow != null) { 8750 mPastePopupWindow.hide(); 8751 } 8752 } 8753 } else { 8754 show(); 8755 } 8756 8757 if (mIsDragging) { 8758 if (coords == null) { 8759 coords = mTempCoords; 8760 TextView.this.getLocationInWindow(coords); 8761 } 8762 if (coords[0] != mLastParentX || coords[1] != mLastParentY) { 8763 mTouchToWindowOffsetX += coords[0] - mLastParentX; 8764 mTouchToWindowOffsetY += coords[1] - mLastParentY; 8765 mLastParentX = coords[0]; 8766 mLastParentY = coords[1]; 8767 } 8768 // Hide paste popup window as soon as the handle is dragged. 8769 if (mPastePopupWindow != null) { 8770 mPastePopupWindow.hide(); 8771 } 8772 } 8773 } else { 8774 hide(); 8775 } 8776 } 8777 8778 @Override 8779 protected void onDraw(Canvas c) { 8780 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 8781 mDrawable.draw(c); 8782 } 8783 8784 @Override 8785 public boolean onTouchEvent(MotionEvent ev) { 8786 switch (ev.getActionMasked()) { 8787 case MotionEvent.ACTION_DOWN: { 8788 startTouchUpFilter(mController.getCurrentOffset(this)); 8789 mDownPositionX = ev.getRawX(); 8790 mDownPositionY = ev.getRawY(); 8791 mTouchToWindowOffsetX = mDownPositionX - mPositionX; 8792 mTouchToWindowOffsetY = mDownPositionY - mPositionY; 8793 final int[] coords = mTempCoords; 8794 TextView.this.getLocationInWindow(coords); 8795 mLastParentX = coords[0]; 8796 mLastParentY = coords[1]; 8797 mIsDragging = true; 8798 if (mIsInsertionHandle) { 8799 mTouchTimer = SystemClock.uptimeMillis(); 8800 if (mLongPressCallback == null) { 8801 mLongPressCallback = new Runnable() { 8802 public void run() { 8803 mController.hide(); 8804 startSelectionActionMode(); 8805 } 8806 }; 8807 } 8808 postDelayed(mLongPressCallback, ViewConfiguration.getLongPressTimeout()); 8809 } 8810 break; 8811 } 8812 8813 case MotionEvent.ACTION_MOVE: { 8814 final float rawX = ev.getRawX(); 8815 final float rawY = ev.getRawY(); 8816 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 8817 final float newPosY = rawY - mTouchToWindowOffsetY + mHotspotY + mTouchOffsetY; 8818 8819 mController.updatePosition(this, Math.round(newPosX), Math.round(newPosY)); 8820 8821 if (mIsInsertionHandle) { 8822 final float dx = rawX - mDownPositionX; 8823 final float dy = rawY - mDownPositionY; 8824 final float distanceSquared = dx * dx + dy * dy; 8825 if (distanceSquared >= mSquaredTouchSlopDistance) { 8826 removeLongPressCallback(); 8827 } 8828 } 8829 break; 8830 } 8831 8832 case MotionEvent.ACTION_UP: 8833 if (mIsInsertionHandle) { 8834 removeLongPressCallback(); 8835 long delay = SystemClock.uptimeMillis() - mTouchTimer; 8836 if (delay < ViewConfiguration.getTapTimeout()) { 8837 if (mPastePopupWindow != null && mPastePopupWindow.isShowing()) { 8838 // Tapping on the handle dismisses the displayed paste view, 8839 mPastePopupWindow.hide(); 8840 } else { 8841 ((InsertionPointCursorController) mController).show(0); 8842 } 8843 } 8844 } 8845 filterOnTouchUp(); 8846 mIsDragging = false; 8847 break; 8848 8849 case MotionEvent.ACTION_CANCEL: 8850 if (mIsInsertionHandle) { 8851 removeLongPressCallback(); 8852 } 8853 mIsDragging = false; 8854 } 8855 return true; 8856 } 8857 8858 public boolean isDragging() { 8859 return mIsDragging; 8860 } 8861 8862 void positionAtCursor(final int offset, boolean bottom) { 8863 addPositionToTouchUpFilter(offset); 8864 final int width = mDrawable.getIntrinsicWidth(); 8865 final int height = mDrawable.getIntrinsicHeight(); 8866 final int line = mLayout.getLineForOffset(offset); 8867 final int lineTop = mLayout.getLineTop(line); 8868 final int lineBottom = mLayout.getLineBottom(line); 8869 8870 final Rect bounds = sCursorControllerTempRect; 8871 bounds.left = (int) (mLayout.getPrimaryHorizontal(offset) - mHotspotX) 8872 + TextView.this.mScrollX; 8873 bounds.top = (bottom ? lineBottom : lineTop - mHeight) + TextView.this.mScrollY; 8874 8875 bounds.right = bounds.left + width; 8876 bounds.bottom = bounds.top + height; 8877 8878 convertFromViewportToContentCoordinates(bounds); 8879 moveTo(bounds.left, bounds.top); 8880 } 8881 8882 void showPastePopupWindow() { 8883 if (mIsInsertionHandle) { 8884 if (mPastePopupWindow == null) { 8885 // Lazy initialisation: create when actually shown only. 8886 mPastePopupWindow = new PastePopupMenu(); 8887 } 8888 mPastePopupWindow.show(); 8889 } 8890 } 8891 8892 private void removeLongPressCallback() { 8893 if (mLongPressCallback != null) { 8894 removeCallbacks(mLongPressCallback); 8895 } 8896 } 8897 8898 void onDetached() { 8899 removeLongPressCallback(); 8900 } 8901 } 8902 8903 private class InsertionPointCursorController implements CursorController { 8904 private static final int DELAY_BEFORE_FADE_OUT = 4100; 8905 private static final int DELAY_BEFORE_PASTE = 2000; 8906 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; 8907 8908 // The cursor controller image. Lazily created. 8909 private HandleView mHandle; 8910 private Runnable mHider; 8911 private Runnable mPastePopupShower; 8912 8913 public void show() { 8914 show(DELAY_BEFORE_PASTE); 8915 } 8916 8917 public void show(int delayBeforePaste) { 8918 updatePosition(); 8919 hideDelayed(); 8920 getHandle().show(); 8921 removePastePopupCallback(); 8922 if (canPaste()) { 8923 final long durationSinceCutOrCopy = SystemClock.uptimeMillis() - sLastCutOrCopyTime; 8924 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 8925 delayBeforePaste = 0; 8926 } 8927 if (mPastePopupShower == null) { 8928 mPastePopupShower = new Runnable() { 8929 public void run() { 8930 getHandle().showPastePopupWindow(); 8931 } 8932 }; 8933 } 8934 postDelayed(mPastePopupShower, delayBeforePaste); 8935 } 8936 } 8937 8938 private void removePastePopupCallback() { 8939 if (mPastePopupShower != null) { 8940 removeCallbacks(mPastePopupShower); 8941 } 8942 } 8943 8944 private void removeHiderCallback() { 8945 if (mHider != null) { 8946 removeCallbacks(mHider); 8947 } 8948 } 8949 8950 public void hide() { 8951 if (mHandle != null) { 8952 mHandle.hide(); 8953 } 8954 removeHiderCallback(); 8955 removePastePopupCallback(); 8956 } 8957 8958 private void hideDelayed() { 8959 removeHiderCallback(); 8960 if (mHider == null) { 8961 mHider = new Runnable() { 8962 public void run() { 8963 hide(); 8964 } 8965 }; 8966 } 8967 postDelayed(mHider, DELAY_BEFORE_FADE_OUT); 8968 } 8969 8970 public boolean isShowing() { 8971 return mHandle != null && mHandle.isShowing(); 8972 } 8973 8974 public void updatePosition(HandleView handle, int x, int y) { 8975 final int previousOffset = getSelectionStart(); 8976 int offset = getHysteresisOffset(x, y, previousOffset); 8977 8978 if (offset != previousOffset) { 8979 updateOffset(handle, offset); 8980 } 8981 hideDelayed(); 8982 } 8983 8984 public void updateOffset(HandleView handle, int offset) { 8985 Selection.setSelection((Spannable) mText, offset); 8986 updatePosition(); 8987 } 8988 8989 public void updatePosition() { 8990 final int offset = getSelectionStart(); 8991 8992 if (offset < 0) { 8993 // Should never happen, safety check. 8994 Log.w(LOG_TAG, "Update cursor controller position called with no cursor"); 8995 hide(); 8996 return; 8997 } 8998 8999 getHandle().positionAtCursor(offset, true); 9000 } 9001 9002 public int getCurrentOffset(HandleView handle) { 9003 return getSelectionStart(); 9004 } 9005 9006 public boolean onTouchEvent(MotionEvent ev) { 9007 return false; 9008 } 9009 9010 public void onTouchModeChanged(boolean isInTouchMode) { 9011 if (!isInTouchMode) { 9012 hide(); 9013 } 9014 } 9015 9016 private HandleView getHandle() { 9017 if (mHandle == null) { 9018 mHandle = new HandleView(this, HandleView.CENTER); 9019 } 9020 return mHandle; 9021 } 9022 9023 @Override 9024 public void onDetached() { 9025 removeHiderCallback(); 9026 removePastePopupCallback(); 9027 if (mHandle != null) { 9028 mHandle.onDetached(); 9029 } 9030 } 9031 } 9032 9033 private class SelectionModifierCursorController implements CursorController { 9034 // The cursor controller images, lazily created when shown. 9035 private HandleView mStartHandle, mEndHandle; 9036 // The offsets of that last touch down event. Remembered to start selection there. 9037 private int mMinTouchOffset, mMaxTouchOffset; 9038 // Whether selection anchors are active 9039 private boolean mIsShowing; 9040 9041 // Double tap detection 9042 private long mPreviousTapUpTime = 0; 9043 private int mPreviousTapPositionX; 9044 private int mPreviousTapPositionY; 9045 9046 SelectionModifierCursorController() { 9047 resetTouchOffsets(); 9048 } 9049 9050 public void show() { 9051 if (isInBatchEditMode()) { 9052 return; 9053 } 9054 9055 // Lazy object creation has to be done before updatePosition() is called. 9056 if (mStartHandle == null) mStartHandle = new HandleView(this, HandleView.LEFT); 9057 if (mEndHandle == null) mEndHandle = new HandleView(this, HandleView.RIGHT); 9058 9059 mIsShowing = true; 9060 updatePosition(); 9061 9062 mStartHandle.show(); 9063 mEndHandle.show(); 9064 9065 hideInsertionPointCursorController(); 9066 } 9067 9068 public void hide() { 9069 if (mStartHandle != null) mStartHandle.hide(); 9070 if (mEndHandle != null) mEndHandle.hide(); 9071 mIsShowing = false; 9072 } 9073 9074 public boolean isShowing() { 9075 return mIsShowing; 9076 } 9077 9078 public void cancelFadeOutAnimation() { 9079 hide(); 9080 } 9081 9082 public void updatePosition(HandleView handle, int x, int y) { 9083 int selectionStart = getSelectionStart(); 9084 int selectionEnd = getSelectionEnd(); 9085 9086 final int previousOffset = handle == mStartHandle ? selectionStart : selectionEnd; 9087 int offset = getHysteresisOffset(x, y, previousOffset); 9088 9089 // Handle the case where start and end are swapped, making sure start <= end 9090 if (handle == mStartHandle) { 9091 if (selectionStart == offset || offset > selectionEnd) { 9092 return; // no change, no need to redraw; 9093 } 9094 // If the user "closes" the selection entirely they were probably trying to 9095 // select a single character. Help them out. 9096 if (offset == selectionEnd) { 9097 offset = selectionEnd - 1; 9098 } 9099 selectionStart = offset; 9100 } else { 9101 if (selectionEnd == offset || offset < selectionStart) { 9102 return; // no change, no need to redraw; 9103 } 9104 // If the user "closes" the selection entirely they were probably trying to 9105 // select a single character. Help them out. 9106 if (offset == selectionStart) { 9107 offset = selectionStart + 1; 9108 } 9109 selectionEnd = offset; 9110 } 9111 9112 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 9113 updatePosition(); 9114 } 9115 9116 public void updateOffset(HandleView handle, int offset) { 9117 int start = getSelectionStart(); 9118 int end = getSelectionEnd(); 9119 9120 if (mStartHandle == handle) { 9121 start = offset; 9122 } else { 9123 end = offset; 9124 } 9125 9126 Selection.setSelection((Spannable) mText, start, end); 9127 updatePosition(); 9128 } 9129 9130 public void updatePosition() { 9131 if (!isShowing()) { 9132 return; 9133 } 9134 9135 final int selectionStart = getSelectionStart(); 9136 final int selectionEnd = getSelectionEnd(); 9137 9138 if ((selectionStart < 0) || (selectionEnd < 0)) { 9139 // Should never happen, safety check. 9140 Log.w(LOG_TAG, "Update selection controller position called with no cursor"); 9141 hide(); 9142 return; 9143 } 9144 9145 // The handles have been created since the controller isShowing(). 9146 mStartHandle.positionAtCursor(selectionStart, true); 9147 mEndHandle.positionAtCursor(selectionEnd, true); 9148 } 9149 9150 public int getCurrentOffset(HandleView handle) { 9151 return mStartHandle == handle ? getSelectionStart() : getSelectionEnd(); 9152 } 9153 9154 public boolean onTouchEvent(MotionEvent event) { 9155 // This is done even when the View does not have focus, so that long presses can start 9156 // selection and tap can move cursor from this tap position. 9157 if (isTextEditable() || mTextIsSelectable) { 9158 switch (event.getActionMasked()) { 9159 case MotionEvent.ACTION_DOWN: 9160 final int x = (int) event.getX(); 9161 final int y = (int) event.getY(); 9162 9163 // Remember finger down position, to be able to start selection from there 9164 mMinTouchOffset = mMaxTouchOffset = getOffset(x, y); 9165 9166 // Double tap detection 9167 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 9168 if (duration <= ViewConfiguration.getDoubleTapTimeout() && 9169 isPositionOnText(x, y)) { 9170 final int deltaX = x - mPreviousTapPositionX; 9171 final int deltaY = y - mPreviousTapPositionY; 9172 final int distanceSquared = deltaX * deltaX + deltaY * deltaY; 9173 if (distanceSquared < mSquaredTouchSlopDistance) { 9174 startSelectionActionMode(); 9175 mDiscardNextActionUp = true; 9176 } 9177 } 9178 9179 mPreviousTapPositionX = x; 9180 mPreviousTapPositionY = y; 9181 9182 break; 9183 9184 case MotionEvent.ACTION_POINTER_DOWN: 9185 case MotionEvent.ACTION_POINTER_UP: 9186 // Handle multi-point gestures. Keep min and max offset positions. 9187 // Only activated for devices that correctly handle multi-touch. 9188 if (mContext.getPackageManager().hasSystemFeature( 9189 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 9190 updateMinAndMaxOffsets(event); 9191 } 9192 break; 9193 9194 case MotionEvent.ACTION_UP: 9195 mPreviousTapUpTime = SystemClock.uptimeMillis(); 9196 break; 9197 } 9198 } 9199 return false; 9200 } 9201 9202 /** 9203 * @param event 9204 */ 9205 private void updateMinAndMaxOffsets(MotionEvent event) { 9206 int pointerCount = event.getPointerCount(); 9207 for (int index = 0; index < pointerCount; index++) { 9208 final int x = (int) event.getX(index); 9209 final int y = (int) event.getY(index); 9210 int offset = getOffset(x, y); 9211 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 9212 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 9213 } 9214 } 9215 9216 public int getMinTouchOffset() { 9217 return mMinTouchOffset; 9218 } 9219 9220 public int getMaxTouchOffset() { 9221 return mMaxTouchOffset; 9222 } 9223 9224 public void resetTouchOffsets() { 9225 mMinTouchOffset = mMaxTouchOffset = -1; 9226 } 9227 9228 /** 9229 * @return true iff this controller is currently used to move the selection start. 9230 */ 9231 public boolean isSelectionStartDragged() { 9232 return mStartHandle != null && mStartHandle.isDragging(); 9233 } 9234 9235 public void onTouchModeChanged(boolean isInTouchMode) { 9236 if (!isInTouchMode) { 9237 hide(); 9238 } 9239 } 9240 9241 @Override 9242 public void onDetached() {} 9243 } 9244 9245 private void hideInsertionPointCursorController() { 9246 // No need to create the controller to hide it. 9247 if (mInsertionPointCursorController != null) { 9248 mInsertionPointCursorController.hide(); 9249 } 9250 } 9251 9252 /** 9253 * Hides the insertion controller and stops text selection mode, hiding the selection controller 9254 */ 9255 private void hideControllers() { 9256 hideInsertionPointCursorController(); 9257 stopSelectionActionMode(); 9258 } 9259 9260 /** 9261 * Get the offset character closest to the specified absolute position. 9262 * 9263 * @param x The horizontal absolute position of a point on screen 9264 * @param y The vertical absolute position of a point on screen 9265 * @return the character offset for the character whose position is closest to the specified 9266 * position. Returns -1 if there is no layout. 9267 * 9268 * @hide 9269 */ 9270 public int getOffset(int x, int y) { 9271 if (getLayout() == null) return -1; 9272 final int line = getLineAtCoordinate(y); 9273 final int offset = getOffsetAtCoordinate(line, x); 9274 return offset; 9275 } 9276 9277 int getHysteresisOffset(int x, int y, int previousOffset) { 9278 final Layout layout = getLayout(); 9279 if (layout == null) return -1; 9280 9281 int line = getLineAtCoordinate(y); 9282 final int previousLine = layout.getLineForOffset(previousOffset); 9283 final int previousLineTop = layout.getLineTop(previousLine); 9284 final int previousLineBottom = layout.getLineBottom(previousLine); 9285 final int hysteresisThreshold = (previousLineBottom - previousLineTop) / 8; 9286 9287 // If new line is just before or after previous line and y position is less than 9288 // hysteresisThreshold away from previous line, keep cursor on previous line. 9289 if (((line == previousLine + 1) && ((y - previousLineBottom) < hysteresisThreshold)) || 9290 ((line == previousLine - 1) && ((previousLineTop - y) < hysteresisThreshold))) { 9291 line = previousLine; 9292 } 9293 9294 return getOffsetAtCoordinate(line, x); 9295 } 9296 9297 private int convertToLocalHorizontalCoordinate(int x) { 9298 x -= getTotalPaddingLeft(); 9299 // Clamp the position to inside of the view. 9300 x = Math.max(0, x); 9301 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 9302 x += getScrollX(); 9303 return x; 9304 } 9305 9306 private int getLineAtCoordinate(int y) { 9307 y -= getTotalPaddingTop(); 9308 // Clamp the position to inside of the view. 9309 y = Math.max(0, y); 9310 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 9311 y += getScrollY(); 9312 return getLayout().getLineForVertical(y); 9313 } 9314 9315 private int getOffsetAtCoordinate(int line, int x) { 9316 x = convertToLocalHorizontalCoordinate(x); 9317 return getLayout().getOffsetForHorizontal(line, x); 9318 } 9319 9320 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 9321 * in the view. Returns false when the position is in the empty space of left/right of text. 9322 */ 9323 private boolean isPositionOnText(int x, int y) { 9324 if (getLayout() == null) return false; 9325 9326 final int line = getLineAtCoordinate(y); 9327 x = convertToLocalHorizontalCoordinate(x); 9328 9329 if (x < getLayout().getLineLeft(line)) return false; 9330 if (x > getLayout().getLineRight(line)) return false; 9331 return true; 9332 } 9333 9334 @Override 9335 public boolean onDragEvent(DragEvent event) { 9336 switch (event.getAction()) { 9337 case DragEvent.ACTION_DRAG_STARTED: 9338 return hasInsertionController(); 9339 9340 case DragEvent.ACTION_DRAG_ENTERED: 9341 TextView.this.requestFocus(); 9342 return true; 9343 9344 case DragEvent.ACTION_DRAG_LOCATION: 9345 final int offset = getOffset((int) event.getX(), (int) event.getY()); 9346 Selection.setSelection((Spannable)mText, offset); 9347 return true; 9348 9349 case DragEvent.ACTION_DROP: 9350 onDrop(event); 9351 return true; 9352 9353 case DragEvent.ACTION_DRAG_ENDED: 9354 case DragEvent.ACTION_DRAG_EXITED: 9355 default: 9356 return true; 9357 } 9358 } 9359 9360 private void onDrop(DragEvent event) { 9361 StringBuilder content = new StringBuilder(""); 9362 ClipData clipData = event.getClipData(); 9363 final int itemCount = clipData.getItemCount(); 9364 for (int i=0; i < itemCount; i++) { 9365 Item item = clipData.getItem(i); 9366 content.append(item.coerceToText(TextView.this.mContext)); 9367 } 9368 9369 final int offset = getOffset((int) event.getX(), (int) event.getY()); 9370 9371 Object localState = event.getLocalState(); 9372 DragLocalState dragLocalState = null; 9373 if (localState instanceof DragLocalState) { 9374 dragLocalState = (DragLocalState) localState; 9375 } 9376 boolean dragDropIntoItself = dragLocalState != null && 9377 dragLocalState.sourceTextView == this; 9378 9379 if (dragDropIntoItself) { 9380 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 9381 // A drop inside the original selection discards the drop. 9382 return; 9383 } 9384 } 9385 9386 final int originalLength = mText.length(); 9387 long minMax = prepareSpacesAroundPaste(offset, offset, content); 9388 int min = extractRangeStartFromLong(minMax); 9389 int max = extractRangeEndFromLong(minMax); 9390 9391 Selection.setSelection((Spannable) mText, max); 9392 ((Editable) mText).replace(min, max, content); 9393 9394 if (dragDropIntoItself) { 9395 int dragSourceStart = dragLocalState.start; 9396 int dragSourceEnd = dragLocalState.end; 9397 if (max <= dragSourceStart) { 9398 // Inserting text before selection has shifted positions 9399 final int shift = mText.length() - originalLength; 9400 dragSourceStart += shift; 9401 dragSourceEnd += shift; 9402 } 9403 9404 // Delete original selection 9405 ((Editable) mText).delete(dragSourceStart, dragSourceEnd); 9406 9407 // Make sure we do not leave two adjacent spaces. 9408 if ((dragSourceStart == 0 || 9409 Character.isSpaceChar(mTransformed.charAt(dragSourceStart - 1))) && 9410 (dragSourceStart == mText.length() || 9411 Character.isSpaceChar(mTransformed.charAt(dragSourceStart)))) { 9412 final int pos = dragSourceStart == mText.length() ? 9413 dragSourceStart - 1 : dragSourceStart; 9414 ((Editable) mText).delete(pos, pos + 1); 9415 } 9416 } 9417 } 9418 9419 /** 9420 * @return True if this view supports insertion handles. 9421 */ 9422 boolean hasInsertionController() { 9423 return mInsertionControllerEnabled; 9424 } 9425 9426 /** 9427 * @return True if this view supports selection handles. 9428 */ 9429 boolean hasSelectionController() { 9430 return mSelectionControllerEnabled; 9431 } 9432 9433 InsertionPointCursorController getInsertionController() { 9434 if (!mInsertionControllerEnabled) { 9435 return null; 9436 } 9437 9438 if (mInsertionPointCursorController == null) { 9439 mInsertionPointCursorController = new InsertionPointCursorController(); 9440 9441 final ViewTreeObserver observer = getViewTreeObserver(); 9442 if (observer != null) { 9443 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 9444 } 9445 } 9446 9447 return mInsertionPointCursorController; 9448 } 9449 9450 SelectionModifierCursorController getSelectionController() { 9451 if (!mSelectionControllerEnabled) { 9452 return null; 9453 } 9454 9455 if (mSelectionModifierCursorController == null) { 9456 mSelectionModifierCursorController = new SelectionModifierCursorController(); 9457 9458 final ViewTreeObserver observer = getViewTreeObserver(); 9459 if (observer != null) { 9460 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 9461 } 9462 } 9463 9464 return mSelectionModifierCursorController; 9465 } 9466 9467 boolean isInBatchEditMode() { 9468 final InputMethodState ims = mInputMethodState; 9469 if (ims != null) { 9470 return ims.mBatchEditNesting > 0; 9471 } 9472 return mInBatchEditControllers; 9473 } 9474 9475 @ViewDebug.ExportedProperty(category = "text") 9476 private CharSequence mText; 9477 private CharSequence mTransformed; 9478 private BufferType mBufferType = BufferType.NORMAL; 9479 9480 private int mInputType = EditorInfo.TYPE_NULL; 9481 private CharSequence mHint; 9482 private Layout mHintLayout; 9483 9484 private KeyListener mInput; 9485 9486 private MovementMethod mMovement; 9487 private TransformationMethod mTransformation; 9488 private ChangeWatcher mChangeWatcher; 9489 9490 private ArrayList<TextWatcher> mListeners = null; 9491 9492 // display attributes 9493 private final TextPaint mTextPaint; 9494 private boolean mUserSetTextScaleX; 9495 private final Paint mHighlightPaint; 9496 private int mHighlightColor = 0xCC475925; 9497 /** 9498 * This is temporarily visible to fix bug 3085564 in webView. Do not rely on 9499 * this field being protected. Will be restored as private when lineHeight 9500 * feature request 3215097 is implemented 9501 * @hide 9502 */ 9503 protected Layout mLayout; 9504 9505 private long mShowCursor; 9506 private Blink mBlink; 9507 private boolean mCursorVisible = true; 9508 9509 // Cursor Controllers. 9510 private InsertionPointCursorController mInsertionPointCursorController; 9511 private SelectionModifierCursorController mSelectionModifierCursorController; 9512 private ActionMode mSelectionActionMode; 9513 private boolean mInsertionControllerEnabled; 9514 private boolean mSelectionControllerEnabled; 9515 private boolean mInBatchEditControllers; 9516 9517 // These are needed to desambiguate a long click. If the long click comes from ones of these, we 9518 // select from the current cursor position. Otherwise, select from long pressed position. 9519 private boolean mDPadCenterIsDown = false; 9520 private boolean mEnterKeyIsDown = false; 9521 private boolean mContextMenuTriggeredByKey = false; 9522 // Created once and shared by different CursorController helper methods. 9523 // Only one cursor controller is active at any time which prevent race conditions. 9524 private static Rect sCursorControllerTempRect = new Rect(); 9525 9526 private boolean mSelectAllOnFocus = false; 9527 9528 private int mGravity = Gravity.TOP | Gravity.LEFT; 9529 private boolean mHorizontallyScrolling; 9530 9531 private int mAutoLinkMask; 9532 private boolean mLinksClickable = true; 9533 9534 private float mSpacingMult = 1; 9535 private float mSpacingAdd = 0; 9536 private boolean mTextIsSelectable = false; 9537 9538 private static final int LINES = 1; 9539 private static final int EMS = LINES; 9540 private static final int PIXELS = 2; 9541 9542 private int mMaximum = Integer.MAX_VALUE; 9543 private int mMaxMode = LINES; 9544 private int mMinimum = 0; 9545 private int mMinMode = LINES; 9546 9547 private int mMaxWidth = Integer.MAX_VALUE; 9548 private int mMaxWidthMode = PIXELS; 9549 private int mMinWidth = 0; 9550 private int mMinWidthMode = PIXELS; 9551 9552 private boolean mSingleLine; 9553 private int mDesiredHeightAtMeasure = -1; 9554 private boolean mIncludePad = true; 9555 9556 // tmp primitives, so we don't alloc them on each draw 9557 private Path mHighlightPath; 9558 private boolean mHighlightPathBogus = true; 9559 private static final RectF sTempRect = new RectF(); 9560 9561 // XXX should be much larger 9562 private static final int VERY_WIDE = 16384; 9563 9564 private static final int BLINK = 500; 9565 9566 private static final int ANIMATED_SCROLL_GAP = 250; 9567 private long mLastScroll; 9568 private Scroller mScroller = null; 9569 9570 private BoringLayout.Metrics mBoring; 9571 private BoringLayout.Metrics mHintBoring; 9572 9573 private BoringLayout mSavedLayout, mSavedHintLayout; 9574 9575 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 9576 private InputFilter[] mFilters = NO_FILTERS; 9577 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 9578 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 9579 // System wide time for last cut or copy action. 9580 private static long sLastCutOrCopyTime; 9581 // Used to highlight a word when it is corrected by the IME 9582 private CorrectionHighlighter mCorrectionHighlighter; 9583 // New state used to change background based on whether this TextView is multiline. 9584 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 9585} 9586