TextView.java revision ad8484b3799ba7046e57388e34ba9a4c0a971b42
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.widget; 18 19import com.android.internal.util.FastMath; 20import com.android.internal.widget.EditableInputConnection; 21 22import org.xmlpull.v1.XmlPullParserException; 23 24import android.R; 25import android.content.ClipData; 26import android.content.ClipData.Item; 27import android.content.ClipboardManager; 28import android.content.Context; 29import android.content.pm.PackageManager; 30import android.content.res.ColorStateList; 31import android.content.res.Resources; 32import android.content.res.TypedArray; 33import android.content.res.XmlResourceParser; 34import android.graphics.Canvas; 35import android.graphics.Color; 36import android.graphics.Paint; 37import android.graphics.Path; 38import android.graphics.Rect; 39import android.graphics.RectF; 40import android.graphics.Typeface; 41import android.graphics.drawable.Drawable; 42import android.inputmethodservice.ExtractEditText; 43import android.net.Uri; 44import android.os.Bundle; 45import android.os.Handler; 46import android.os.Message; 47import android.os.Parcel; 48import android.os.Parcelable; 49import android.os.SystemClock; 50import android.text.BoringLayout; 51import android.text.DynamicLayout; 52import android.text.Editable; 53import android.text.GetChars; 54import android.text.GraphicsOperations; 55import android.text.InputFilter; 56import android.text.InputType; 57import android.text.Layout; 58import android.text.ParcelableSpan; 59import android.text.Selection; 60import android.text.SpanWatcher; 61import android.text.Spannable; 62import android.text.SpannableString; 63import android.text.Spanned; 64import android.text.SpannedString; 65import android.text.StaticLayout; 66import android.text.TextPaint; 67import android.text.TextUtils; 68import android.text.TextWatcher; 69import android.text.method.ArrowKeyMovementMethod; 70import android.text.method.DateKeyListener; 71import android.text.method.DateTimeKeyListener; 72import android.text.method.DialerKeyListener; 73import android.text.method.DigitsKeyListener; 74import android.text.method.KeyListener; 75import android.text.method.LinkMovementMethod; 76import android.text.method.MetaKeyKeyListener; 77import android.text.method.MovementMethod; 78import android.text.method.PasswordTransformationMethod; 79import android.text.method.SingleLineTransformationMethod; 80import android.text.method.TextKeyListener; 81import android.text.method.TimeKeyListener; 82import android.text.method.TransformationMethod; 83import android.text.style.ClickableSpan; 84import android.text.style.ParagraphStyle; 85import android.text.style.URLSpan; 86import android.text.style.UpdateAppearance; 87import android.text.util.Linkify; 88import android.util.AttributeSet; 89import android.util.FloatMath; 90import android.util.Log; 91import android.util.TypedValue; 92import android.view.ActionMode; 93import android.view.ActionMode.Callback; 94import android.view.ContextMenu; 95import android.view.DragEvent; 96import android.view.Gravity; 97import android.view.HapticFeedbackConstants; 98import android.view.KeyCharacterMap; 99import android.view.KeyEvent; 100import android.view.LayoutInflater; 101import android.view.Menu; 102import android.view.MenuItem; 103import android.view.MotionEvent; 104import android.view.View; 105import android.view.ViewConfiguration; 106import android.view.ViewDebug; 107import android.view.ViewGroup; 108import android.view.ViewGroup.LayoutParams; 109import android.view.ViewParent; 110import android.view.ViewRoot; 111import android.view.ViewTreeObserver; 112import android.view.WindowManager; 113import android.view.accessibility.AccessibilityEvent; 114import android.view.accessibility.AccessibilityManager; 115import android.view.animation.AnimationUtils; 116import android.view.inputmethod.BaseInputConnection; 117import android.view.inputmethod.CompletionInfo; 118import android.view.inputmethod.CorrectionInfo; 119import android.view.inputmethod.EditorInfo; 120import android.view.inputmethod.ExtractedText; 121import android.view.inputmethod.ExtractedTextRequest; 122import android.view.inputmethod.InputConnection; 123import android.view.inputmethod.InputMethodManager; 124import android.widget.RemoteViews.RemoteView; 125 126import java.io.IOException; 127import java.lang.ref.WeakReference; 128import java.util.ArrayList; 129 130/** 131 * Displays text to the user and optionally allows them to edit it. A TextView 132 * is a complete text editor, however the basic class is configured to not 133 * allow editing; see {@link EditText} for a subclass that configures the text 134 * view for editing. 135 * 136 * <p> 137 * <b>XML attributes</b> 138 * <p> 139 * See {@link android.R.styleable#TextView TextView Attributes}, 140 * {@link android.R.styleable#View View Attributes} 141 * 142 * @attr ref android.R.styleable#TextView_text 143 * @attr ref android.R.styleable#TextView_bufferType 144 * @attr ref android.R.styleable#TextView_hint 145 * @attr ref android.R.styleable#TextView_textColor 146 * @attr ref android.R.styleable#TextView_textColorHighlight 147 * @attr ref android.R.styleable#TextView_textColorHint 148 * @attr ref android.R.styleable#TextView_textAppearance 149 * @attr ref android.R.styleable#TextView_textColorLink 150 * @attr ref android.R.styleable#TextView_textSize 151 * @attr ref android.R.styleable#TextView_textScaleX 152 * @attr ref android.R.styleable#TextView_typeface 153 * @attr ref android.R.styleable#TextView_textStyle 154 * @attr ref android.R.styleable#TextView_cursorVisible 155 * @attr ref android.R.styleable#TextView_maxLines 156 * @attr ref android.R.styleable#TextView_maxHeight 157 * @attr ref android.R.styleable#TextView_lines 158 * @attr ref android.R.styleable#TextView_height 159 * @attr ref android.R.styleable#TextView_minLines 160 * @attr ref android.R.styleable#TextView_minHeight 161 * @attr ref android.R.styleable#TextView_maxEms 162 * @attr ref android.R.styleable#TextView_maxWidth 163 * @attr ref android.R.styleable#TextView_ems 164 * @attr ref android.R.styleable#TextView_width 165 * @attr ref android.R.styleable#TextView_minEms 166 * @attr ref android.R.styleable#TextView_minWidth 167 * @attr ref android.R.styleable#TextView_gravity 168 * @attr ref android.R.styleable#TextView_scrollHorizontally 169 * @attr ref android.R.styleable#TextView_password 170 * @attr ref android.R.styleable#TextView_singleLine 171 * @attr ref android.R.styleable#TextView_selectAllOnFocus 172 * @attr ref android.R.styleable#TextView_includeFontPadding 173 * @attr ref android.R.styleable#TextView_maxLength 174 * @attr ref android.R.styleable#TextView_shadowColor 175 * @attr ref android.R.styleable#TextView_shadowDx 176 * @attr ref android.R.styleable#TextView_shadowDy 177 * @attr ref android.R.styleable#TextView_shadowRadius 178 * @attr ref android.R.styleable#TextView_autoLink 179 * @attr ref android.R.styleable#TextView_linksClickable 180 * @attr ref android.R.styleable#TextView_numeric 181 * @attr ref android.R.styleable#TextView_digits 182 * @attr ref android.R.styleable#TextView_phoneNumber 183 * @attr ref android.R.styleable#TextView_inputMethod 184 * @attr ref android.R.styleable#TextView_capitalize 185 * @attr ref android.R.styleable#TextView_autoText 186 * @attr ref android.R.styleable#TextView_editable 187 * @attr ref android.R.styleable#TextView_freezesText 188 * @attr ref android.R.styleable#TextView_ellipsize 189 * @attr ref android.R.styleable#TextView_drawableTop 190 * @attr ref android.R.styleable#TextView_drawableBottom 191 * @attr ref android.R.styleable#TextView_drawableRight 192 * @attr ref android.R.styleable#TextView_drawableLeft 193 * @attr ref android.R.styleable#TextView_drawablePadding 194 * @attr ref android.R.styleable#TextView_lineSpacingExtra 195 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 196 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 197 * @attr ref android.R.styleable#TextView_inputType 198 * @attr ref android.R.styleable#TextView_imeOptions 199 * @attr ref android.R.styleable#TextView_privateImeOptions 200 * @attr ref android.R.styleable#TextView_imeActionLabel 201 * @attr ref android.R.styleable#TextView_imeActionId 202 * @attr ref android.R.styleable#TextView_editorExtras 203 */ 204@RemoteView 205public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 206 static final String LOG_TAG = "TextView"; 207 static final boolean DEBUG_EXTRACT = false; 208 209 private static final int PRIORITY = 100; 210 private int mCurrentAlpha = 255; 211 212 final int[] mTempCoords = new int[2]; 213 Rect mTempRect; 214 215 private ColorStateList mTextColor; 216 private int mCurTextColor; 217 private ColorStateList mHintTextColor; 218 private ColorStateList mLinkTextColor; 219 private int mCurHintTextColor; 220 private boolean mFreezesText; 221 private boolean mFrozenWithFocus; 222 private boolean mTemporaryDetach; 223 private boolean mDispatchTemporaryDetach; 224 225 private boolean mDiscardNextActionUp = false; 226 private boolean mIgnoreActionUpEvent = false; 227 228 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 229 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 230 231 private float mShadowRadius, mShadowDx, mShadowDy; 232 233 private static final int PREDRAW_NOT_REGISTERED = 0; 234 private static final int PREDRAW_PENDING = 1; 235 private static final int PREDRAW_DONE = 2; 236 private int mPreDrawState = PREDRAW_NOT_REGISTERED; 237 238 private TextUtils.TruncateAt mEllipsize = null; 239 240 // Enum for the "typeface" XML parameter. 241 // TODO: How can we get this from the XML instead of hardcoding it here? 242 private static final int SANS = 1; 243 private static final int SERIF = 2; 244 private static final int MONOSPACE = 3; 245 246 // Bitfield for the "numeric" XML parameter. 247 // TODO: How can we get this from the XML instead of hardcoding it here? 248 private static final int SIGNED = 2; 249 private static final int DECIMAL = 4; 250 251 class Drawables { 252 final Rect mCompoundRect = new Rect(); 253 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight; 254 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight; 255 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight; 256 int mDrawablePadding; 257 } 258 private Drawables mDrawables; 259 260 private CharSequence mError; 261 private boolean mErrorWasChanged; 262 private ErrorPopup mPopup; 263 /** 264 * This flag is set if the TextView tries to display an error before it 265 * is attached to the window (so its position is still unknown). 266 * It causes the error to be shown later, when onAttachedToWindow() 267 * is called. 268 */ 269 private boolean mShowErrorAfterAttach; 270 271 private CharWrapper mCharWrapper = null; 272 273 private boolean mSelectionMoved = false; 274 private boolean mTouchFocusSelected = false; 275 276 private Marquee mMarquee; 277 private boolean mRestartMarquee; 278 279 private int mMarqueeRepeatLimit = 3; 280 281 class InputContentType { 282 int imeOptions = EditorInfo.IME_NULL; 283 String privateImeOptions; 284 CharSequence imeActionLabel; 285 int imeActionId; 286 Bundle extras; 287 OnEditorActionListener onEditorActionListener; 288 boolean enterDown; 289 } 290 InputContentType mInputContentType; 291 292 class InputMethodState { 293 Rect mCursorRectInWindow = new Rect(); 294 RectF mTmpRectF = new RectF(); 295 float[] mTmpOffset = new float[2]; 296 ExtractedTextRequest mExtracting; 297 final ExtractedText mTmpExtracted = new ExtractedText(); 298 int mBatchEditNesting; 299 boolean mCursorChanged; 300 boolean mSelectionModeChanged; 301 boolean mContentChanged; 302 int mChangedStart, mChangedEnd, mChangedDelta; 303 } 304 InputMethodState mInputMethodState; 305 306 private int mTextSelectHandleLeftRes; 307 private int mTextSelectHandleRightRes; 308 private int mTextSelectHandleRes; 309 private int mTextEditPasteWindowLayout, mTextEditSidePasteWindowLayout; 310 private int mTextEditNoPasteWindowLayout, mTextEditSideNoPasteWindowLayout; 311 312 private int mCursorDrawableRes; 313 private final Drawable[] mCursorDrawable = new Drawable[2]; 314 private int mCursorCount; // Actual current number of used mCursorDrawable: 0, 1 or 2 315 316 private Drawable mSelectHandleLeft; 317 private Drawable mSelectHandleRight; 318 private Drawable mSelectHandleCenter; 319 320 private int mLastDownPositionX, mLastDownPositionY; 321 private Callback mCustomSelectionActionModeCallback; 322 323 private final int mSquaredTouchSlopDistance; 324 // Set when this TextView gained focus with some text selected. Will start selection mode. 325 private boolean mCreatedWithASelection = false; 326 327 /* 328 * Kick-start the font cache for the zygote process (to pay the cost of 329 * initializing freetype for our default font only once). 330 */ 331 static { 332 Paint p = new Paint(); 333 p.setAntiAlias(true); 334 // We don't care about the result, just the side-effect of measuring. 335 p.measureText("H"); 336 } 337 338 /** 339 * Interface definition for a callback to be invoked when an action is 340 * performed on the editor. 341 */ 342 public interface OnEditorActionListener { 343 /** 344 * Called when an action is being performed. 345 * 346 * @param v The view that was clicked. 347 * @param actionId Identifier of the action. This will be either the 348 * identifier you supplied, or {@link EditorInfo#IME_NULL 349 * EditorInfo.IME_NULL} if being called due to the enter key 350 * being pressed. 351 * @param event If triggered by an enter key, this is the event; 352 * otherwise, this is null. 353 * @return Return true if you have consumed the action, else false. 354 */ 355 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 356 } 357 358 public TextView(Context context) { 359 this(context, null); 360 } 361 362 public TextView(Context context, 363 AttributeSet attrs) { 364 this(context, attrs, com.android.internal.R.attr.textViewStyle); 365 } 366 367 @SuppressWarnings("deprecation") 368 public TextView(Context context, 369 AttributeSet attrs, 370 int defStyle) { 371 super(context, attrs, defStyle); 372 mText = ""; 373 374 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 375 mTextPaint.density = getResources().getDisplayMetrics().density; 376 mTextPaint.setCompatibilityScaling( 377 getResources().getCompatibilityInfo().applicationScale); 378 379 // If we get the paint from the skin, we should set it to left, since 380 // the layout always wants it to be left. 381 // mTextPaint.setTextAlign(Paint.Align.LEFT); 382 383 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 384 mHighlightPaint.setCompatibilityScaling( 385 getResources().getCompatibilityInfo().applicationScale); 386 387 mMovement = getDefaultMovementMethod(); 388 mTransformation = null; 389 390 TypedArray a = 391 context.obtainStyledAttributes( 392 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 393 394 int textColorHighlight = 0; 395 ColorStateList textColor = null; 396 ColorStateList textColorHint = null; 397 ColorStateList textColorLink = null; 398 int textSize = 15; 399 int typefaceIndex = -1; 400 int styleIndex = -1; 401 402 /* 403 * Look the appearance up without checking first if it exists because 404 * almost every TextView has one and it greatly simplifies the logic 405 * to be able to parse the appearance first and then let specific tags 406 * for this View override it. 407 */ 408 TypedArray appearance = null; 409 int ap = a.getResourceId(com.android.internal.R.styleable.TextView_textAppearance, -1); 410 if (ap != -1) { 411 appearance = context.obtainStyledAttributes(ap, 412 com.android.internal.R.styleable. 413 TextAppearance); 414 } 415 if (appearance != null) { 416 int n = appearance.getIndexCount(); 417 for (int i = 0; i < n; i++) { 418 int attr = appearance.getIndex(i); 419 420 switch (attr) { 421 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 422 textColorHighlight = appearance.getColor(attr, textColorHighlight); 423 break; 424 425 case com.android.internal.R.styleable.TextAppearance_textColor: 426 textColor = appearance.getColorStateList(attr); 427 break; 428 429 case com.android.internal.R.styleable.TextAppearance_textColorHint: 430 textColorHint = appearance.getColorStateList(attr); 431 break; 432 433 case com.android.internal.R.styleable.TextAppearance_textColorLink: 434 textColorLink = appearance.getColorStateList(attr); 435 break; 436 437 case com.android.internal.R.styleable.TextAppearance_textSize: 438 textSize = appearance.getDimensionPixelSize(attr, textSize); 439 break; 440 441 case com.android.internal.R.styleable.TextAppearance_typeface: 442 typefaceIndex = appearance.getInt(attr, -1); 443 break; 444 445 case com.android.internal.R.styleable.TextAppearance_textStyle: 446 styleIndex = appearance.getInt(attr, -1); 447 break; 448 } 449 } 450 451 appearance.recycle(); 452 } 453 454 boolean editable = getDefaultEditable(); 455 CharSequence inputMethod = null; 456 int numeric = 0; 457 CharSequence digits = null; 458 boolean phone = false; 459 boolean autotext = false; 460 int autocap = -1; 461 int buffertype = 0; 462 boolean selectallonfocus = false; 463 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 464 drawableBottom = null; 465 int drawablePadding = 0; 466 int ellipsize = -1; 467 boolean singleLine = false; 468 int maxlength = -1; 469 CharSequence text = ""; 470 CharSequence hint = null; 471 int shadowcolor = 0; 472 float dx = 0, dy = 0, r = 0; 473 boolean password = false; 474 int inputType = EditorInfo.TYPE_NULL; 475 476 int n = a.getIndexCount(); 477 for (int i = 0; i < n; i++) { 478 int attr = a.getIndex(i); 479 480 switch (attr) { 481 case com.android.internal.R.styleable.TextView_editable: 482 editable = a.getBoolean(attr, editable); 483 break; 484 485 case com.android.internal.R.styleable.TextView_inputMethod: 486 inputMethod = a.getText(attr); 487 break; 488 489 case com.android.internal.R.styleable.TextView_numeric: 490 numeric = a.getInt(attr, numeric); 491 break; 492 493 case com.android.internal.R.styleable.TextView_digits: 494 digits = a.getText(attr); 495 break; 496 497 case com.android.internal.R.styleable.TextView_phoneNumber: 498 phone = a.getBoolean(attr, phone); 499 break; 500 501 case com.android.internal.R.styleable.TextView_autoText: 502 autotext = a.getBoolean(attr, autotext); 503 break; 504 505 case com.android.internal.R.styleable.TextView_capitalize: 506 autocap = a.getInt(attr, autocap); 507 break; 508 509 case com.android.internal.R.styleable.TextView_bufferType: 510 buffertype = a.getInt(attr, buffertype); 511 break; 512 513 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 514 selectallonfocus = a.getBoolean(attr, selectallonfocus); 515 break; 516 517 case com.android.internal.R.styleable.TextView_autoLink: 518 mAutoLinkMask = a.getInt(attr, 0); 519 break; 520 521 case com.android.internal.R.styleable.TextView_linksClickable: 522 mLinksClickable = a.getBoolean(attr, true); 523 break; 524 525 case com.android.internal.R.styleable.TextView_drawableLeft: 526 drawableLeft = a.getDrawable(attr); 527 break; 528 529 case com.android.internal.R.styleable.TextView_drawableTop: 530 drawableTop = a.getDrawable(attr); 531 break; 532 533 case com.android.internal.R.styleable.TextView_drawableRight: 534 drawableRight = a.getDrawable(attr); 535 break; 536 537 case com.android.internal.R.styleable.TextView_drawableBottom: 538 drawableBottom = a.getDrawable(attr); 539 break; 540 541 case com.android.internal.R.styleable.TextView_drawablePadding: 542 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 543 break; 544 545 case com.android.internal.R.styleable.TextView_maxLines: 546 setMaxLines(a.getInt(attr, -1)); 547 break; 548 549 case com.android.internal.R.styleable.TextView_maxHeight: 550 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 551 break; 552 553 case com.android.internal.R.styleable.TextView_lines: 554 setLines(a.getInt(attr, -1)); 555 break; 556 557 case com.android.internal.R.styleable.TextView_height: 558 setHeight(a.getDimensionPixelSize(attr, -1)); 559 break; 560 561 case com.android.internal.R.styleable.TextView_minLines: 562 setMinLines(a.getInt(attr, -1)); 563 break; 564 565 case com.android.internal.R.styleable.TextView_minHeight: 566 setMinHeight(a.getDimensionPixelSize(attr, -1)); 567 break; 568 569 case com.android.internal.R.styleable.TextView_maxEms: 570 setMaxEms(a.getInt(attr, -1)); 571 break; 572 573 case com.android.internal.R.styleable.TextView_maxWidth: 574 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 575 break; 576 577 case com.android.internal.R.styleable.TextView_ems: 578 setEms(a.getInt(attr, -1)); 579 break; 580 581 case com.android.internal.R.styleable.TextView_width: 582 setWidth(a.getDimensionPixelSize(attr, -1)); 583 break; 584 585 case com.android.internal.R.styleable.TextView_minEms: 586 setMinEms(a.getInt(attr, -1)); 587 break; 588 589 case com.android.internal.R.styleable.TextView_minWidth: 590 setMinWidth(a.getDimensionPixelSize(attr, -1)); 591 break; 592 593 case com.android.internal.R.styleable.TextView_gravity: 594 setGravity(a.getInt(attr, -1)); 595 break; 596 597 case com.android.internal.R.styleable.TextView_hint: 598 hint = a.getText(attr); 599 break; 600 601 case com.android.internal.R.styleable.TextView_text: 602 text = a.getText(attr); 603 break; 604 605 case com.android.internal.R.styleable.TextView_scrollHorizontally: 606 if (a.getBoolean(attr, false)) { 607 setHorizontallyScrolling(true); 608 } 609 break; 610 611 case com.android.internal.R.styleable.TextView_singleLine: 612 singleLine = a.getBoolean(attr, singleLine); 613 break; 614 615 case com.android.internal.R.styleable.TextView_ellipsize: 616 ellipsize = a.getInt(attr, ellipsize); 617 break; 618 619 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 620 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 621 break; 622 623 case com.android.internal.R.styleable.TextView_includeFontPadding: 624 if (!a.getBoolean(attr, true)) { 625 setIncludeFontPadding(false); 626 } 627 break; 628 629 case com.android.internal.R.styleable.TextView_cursorVisible: 630 if (!a.getBoolean(attr, true)) { 631 setCursorVisible(false); 632 } 633 break; 634 635 case com.android.internal.R.styleable.TextView_maxLength: 636 maxlength = a.getInt(attr, -1); 637 break; 638 639 case com.android.internal.R.styleable.TextView_textScaleX: 640 setTextScaleX(a.getFloat(attr, 1.0f)); 641 break; 642 643 case com.android.internal.R.styleable.TextView_freezesText: 644 mFreezesText = a.getBoolean(attr, false); 645 break; 646 647 case com.android.internal.R.styleable.TextView_shadowColor: 648 shadowcolor = a.getInt(attr, 0); 649 break; 650 651 case com.android.internal.R.styleable.TextView_shadowDx: 652 dx = a.getFloat(attr, 0); 653 break; 654 655 case com.android.internal.R.styleable.TextView_shadowDy: 656 dy = a.getFloat(attr, 0); 657 break; 658 659 case com.android.internal.R.styleable.TextView_shadowRadius: 660 r = a.getFloat(attr, 0); 661 break; 662 663 case com.android.internal.R.styleable.TextView_enabled: 664 setEnabled(a.getBoolean(attr, isEnabled())); 665 break; 666 667 case com.android.internal.R.styleable.TextView_textColorHighlight: 668 textColorHighlight = a.getColor(attr, textColorHighlight); 669 break; 670 671 case com.android.internal.R.styleable.TextView_textColor: 672 textColor = a.getColorStateList(attr); 673 break; 674 675 case com.android.internal.R.styleable.TextView_textColorHint: 676 textColorHint = a.getColorStateList(attr); 677 break; 678 679 case com.android.internal.R.styleable.TextView_textColorLink: 680 textColorLink = a.getColorStateList(attr); 681 break; 682 683 case com.android.internal.R.styleable.TextView_textSize: 684 textSize = a.getDimensionPixelSize(attr, textSize); 685 break; 686 687 case com.android.internal.R.styleable.TextView_typeface: 688 typefaceIndex = a.getInt(attr, typefaceIndex); 689 break; 690 691 case com.android.internal.R.styleable.TextView_textStyle: 692 styleIndex = a.getInt(attr, styleIndex); 693 break; 694 695 case com.android.internal.R.styleable.TextView_password: 696 password = a.getBoolean(attr, password); 697 break; 698 699 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 700 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 701 break; 702 703 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 704 mSpacingMult = a.getFloat(attr, mSpacingMult); 705 break; 706 707 case com.android.internal.R.styleable.TextView_inputType: 708 inputType = a.getInt(attr, mInputType); 709 break; 710 711 case com.android.internal.R.styleable.TextView_imeOptions: 712 if (mInputContentType == null) { 713 mInputContentType = new InputContentType(); 714 } 715 mInputContentType.imeOptions = a.getInt(attr, 716 mInputContentType.imeOptions); 717 break; 718 719 case com.android.internal.R.styleable.TextView_imeActionLabel: 720 if (mInputContentType == null) { 721 mInputContentType = new InputContentType(); 722 } 723 mInputContentType.imeActionLabel = a.getText(attr); 724 break; 725 726 case com.android.internal.R.styleable.TextView_imeActionId: 727 if (mInputContentType == null) { 728 mInputContentType = new InputContentType(); 729 } 730 mInputContentType.imeActionId = a.getInt(attr, 731 mInputContentType.imeActionId); 732 break; 733 734 case com.android.internal.R.styleable.TextView_privateImeOptions: 735 setPrivateImeOptions(a.getString(attr)); 736 break; 737 738 case com.android.internal.R.styleable.TextView_editorExtras: 739 try { 740 setInputExtras(a.getResourceId(attr, 0)); 741 } catch (XmlPullParserException e) { 742 Log.w(LOG_TAG, "Failure reading input extras", e); 743 } catch (IOException e) { 744 Log.w(LOG_TAG, "Failure reading input extras", e); 745 } 746 break; 747 748 case com.android.internal.R.styleable.TextView_textCursorDrawable: 749 mCursorDrawableRes = a.getResourceId(attr, 0); 750 break; 751 752 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 753 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 754 break; 755 756 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 757 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 758 break; 759 760 case com.android.internal.R.styleable.TextView_textSelectHandle: 761 mTextSelectHandleRes = a.getResourceId(attr, 0); 762 break; 763 764 case com.android.internal.R.styleable.TextView_textEditPasteWindowLayout: 765 mTextEditPasteWindowLayout = a.getResourceId(attr, 0); 766 break; 767 768 case com.android.internal.R.styleable.TextView_textEditNoPasteWindowLayout: 769 mTextEditNoPasteWindowLayout = a.getResourceId(attr, 0); 770 break; 771 772 case com.android.internal.R.styleable.TextView_textEditSidePasteWindowLayout: 773 mTextEditSidePasteWindowLayout = a.getResourceId(attr, 0); 774 break; 775 776 case com.android.internal.R.styleable.TextView_textEditSideNoPasteWindowLayout: 777 mTextEditSideNoPasteWindowLayout = a.getResourceId(attr, 0); 778 break; 779 780 case com.android.internal.R.styleable.TextView_textIsSelectable: 781 mTextIsSelectable = a.getBoolean(attr, false); 782 break; 783 } 784 } 785 a.recycle(); 786 787 BufferType bufferType = BufferType.EDITABLE; 788 789 final int variation = 790 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 791 final boolean passwordInputType = variation 792 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 793 final boolean webPasswordInputType = variation 794 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 795 final boolean numberPasswordInputType = variation 796 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 797 798 if (inputMethod != null) { 799 Class<?> c; 800 801 try { 802 c = Class.forName(inputMethod.toString()); 803 } catch (ClassNotFoundException ex) { 804 throw new RuntimeException(ex); 805 } 806 807 try { 808 mInput = (KeyListener) c.newInstance(); 809 } catch (InstantiationException ex) { 810 throw new RuntimeException(ex); 811 } catch (IllegalAccessException ex) { 812 throw new RuntimeException(ex); 813 } 814 try { 815 mInputType = inputType != EditorInfo.TYPE_NULL 816 ? inputType 817 : mInput.getInputType(); 818 } catch (IncompatibleClassChangeError e) { 819 mInputType = EditorInfo.TYPE_CLASS_TEXT; 820 } 821 } else if (digits != null) { 822 mInput = DigitsKeyListener.getInstance(digits.toString()); 823 // If no input type was specified, we will default to generic 824 // text, since we can't tell the IME about the set of digits 825 // that was selected. 826 mInputType = inputType != EditorInfo.TYPE_NULL 827 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 828 } else if (inputType != EditorInfo.TYPE_NULL) { 829 setInputType(inputType, true); 830 // If set, the input type overrides what was set using the deprecated singleLine flag. 831 singleLine = !isMultilineInputType(inputType); 832 } else if (phone) { 833 mInput = DialerKeyListener.getInstance(); 834 mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 835 } else if (numeric != 0) { 836 mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 837 (numeric & DECIMAL) != 0); 838 inputType = EditorInfo.TYPE_CLASS_NUMBER; 839 if ((numeric & SIGNED) != 0) { 840 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 841 } 842 if ((numeric & DECIMAL) != 0) { 843 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 844 } 845 mInputType = inputType; 846 } else if (autotext || autocap != -1) { 847 TextKeyListener.Capitalize cap; 848 849 inputType = EditorInfo.TYPE_CLASS_TEXT; 850 851 switch (autocap) { 852 case 1: 853 cap = TextKeyListener.Capitalize.SENTENCES; 854 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 855 break; 856 857 case 2: 858 cap = TextKeyListener.Capitalize.WORDS; 859 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 860 break; 861 862 case 3: 863 cap = TextKeyListener.Capitalize.CHARACTERS; 864 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 865 break; 866 867 default: 868 cap = TextKeyListener.Capitalize.NONE; 869 break; 870 } 871 872 mInput = TextKeyListener.getInstance(autotext, cap); 873 mInputType = inputType; 874 } else if (mTextIsSelectable) { 875 // Prevent text changes from keyboard. 876 mInputType = EditorInfo.TYPE_NULL; 877 mInput = null; 878 bufferType = BufferType.SPANNABLE; 879 // Required to request focus while in touch mode. 880 setFocusableInTouchMode(true); 881 // So that selection can be changed using arrow keys and touch is handled. 882 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 883 } else if (editable) { 884 mInput = TextKeyListener.getInstance(); 885 mInputType = EditorInfo.TYPE_CLASS_TEXT; 886 } else { 887 mInput = null; 888 889 switch (buffertype) { 890 case 0: 891 bufferType = BufferType.NORMAL; 892 break; 893 case 1: 894 bufferType = BufferType.SPANNABLE; 895 break; 896 case 2: 897 bufferType = BufferType.EDITABLE; 898 break; 899 } 900 } 901 902 // mInputType has been set from inputType, possibly modified by mInputMethod. 903 // Specialize mInputType to [web]password if we have a text class and the original input 904 // type was a password. 905 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 906 if (password || passwordInputType) { 907 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 908 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 909 } 910 if (webPasswordInputType) { 911 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 912 | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 913 } 914 } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { 915 if (numberPasswordInputType) { 916 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 917 | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 918 } 919 } 920 921 if (selectallonfocus) { 922 mSelectAllOnFocus = true; 923 924 if (bufferType == BufferType.NORMAL) 925 bufferType = BufferType.SPANNABLE; 926 } 927 928 setCompoundDrawablesWithIntrinsicBounds( 929 drawableLeft, drawableTop, drawableRight, drawableBottom); 930 setCompoundDrawablePadding(drawablePadding); 931 932 // Same as setSingleLine(), but make sure the transformation method and the maximum number 933 // of lines of height are unchanged for multi-line TextViews. 934 setInputTypeSingleLine(singleLine); 935 applySingleLine(singleLine, singleLine, singleLine); 936 937 if (singleLine && mInput == null && ellipsize < 0) { 938 ellipsize = 3; // END 939 } 940 941 switch (ellipsize) { 942 case 1: 943 setEllipsize(TextUtils.TruncateAt.START); 944 break; 945 case 2: 946 setEllipsize(TextUtils.TruncateAt.MIDDLE); 947 break; 948 case 3: 949 setEllipsize(TextUtils.TruncateAt.END); 950 break; 951 case 4: 952 setHorizontalFadingEdgeEnabled(true); 953 setEllipsize(TextUtils.TruncateAt.MARQUEE); 954 break; 955 } 956 957 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 958 setHintTextColor(textColorHint); 959 setLinkTextColor(textColorLink); 960 if (textColorHighlight != 0) { 961 setHighlightColor(textColorHighlight); 962 } 963 setRawTextSize(textSize); 964 965 if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) { 966 setTransformationMethod(PasswordTransformationMethod.getInstance()); 967 typefaceIndex = MONOSPACE; 968 } else if ((mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 969 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 970 typefaceIndex = MONOSPACE; 971 } 972 973 setTypefaceByIndex(typefaceIndex, styleIndex); 974 975 if (shadowcolor != 0) { 976 setShadowLayer(r, dx, dy, shadowcolor); 977 } 978 979 if (maxlength >= 0) { 980 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 981 } else { 982 setFilters(NO_FILTERS); 983 } 984 985 setText(text, bufferType); 986 if (hint != null) setHint(hint); 987 988 /* 989 * Views are not normally focusable unless specified to be. 990 * However, TextViews that have input or movement methods *are* 991 * focusable by default. 992 */ 993 a = context.obtainStyledAttributes(attrs, 994 com.android.internal.R.styleable.View, 995 defStyle, 0); 996 997 boolean focusable = mMovement != null || mInput != null; 998 boolean clickable = focusable; 999 boolean longClickable = focusable; 1000 1001 n = a.getIndexCount(); 1002 for (int i = 0; i < n; i++) { 1003 int attr = a.getIndex(i); 1004 1005 switch (attr) { 1006 case com.android.internal.R.styleable.View_focusable: 1007 focusable = a.getBoolean(attr, focusable); 1008 break; 1009 1010 case com.android.internal.R.styleable.View_clickable: 1011 clickable = a.getBoolean(attr, clickable); 1012 break; 1013 1014 case com.android.internal.R.styleable.View_longClickable: 1015 longClickable = a.getBoolean(attr, longClickable); 1016 break; 1017 } 1018 } 1019 a.recycle(); 1020 1021 setFocusable(focusable); 1022 setClickable(clickable); 1023 setLongClickable(longClickable); 1024 1025 prepareCursorControllers(); 1026 1027 final ViewConfiguration viewConfiguration = ViewConfiguration.get(context); 1028 final int touchSlop = viewConfiguration.getScaledTouchSlop(); 1029 mSquaredTouchSlopDistance = touchSlop * touchSlop; 1030 } 1031 1032 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 1033 Typeface tf = null; 1034 switch (typefaceIndex) { 1035 case SANS: 1036 tf = Typeface.SANS_SERIF; 1037 break; 1038 1039 case SERIF: 1040 tf = Typeface.SERIF; 1041 break; 1042 1043 case MONOSPACE: 1044 tf = Typeface.MONOSPACE; 1045 break; 1046 } 1047 1048 setTypeface(tf, styleIndex); 1049 } 1050 1051 @Override 1052 public void setEnabled(boolean enabled) { 1053 if (enabled == isEnabled()) { 1054 return; 1055 } 1056 1057 if (!enabled) { 1058 // Hide the soft input if the currently active TextView is disabled 1059 InputMethodManager imm = InputMethodManager.peekInstance(); 1060 if (imm != null && imm.isActive(this)) { 1061 imm.hideSoftInputFromWindow(getWindowToken(), 0); 1062 } 1063 } 1064 super.setEnabled(enabled); 1065 } 1066 1067 /** 1068 * Sets the typeface and style in which the text should be displayed, 1069 * and turns on the fake bold and italic bits in the Paint if the 1070 * Typeface that you provided does not have all the bits in the 1071 * style that you specified. 1072 * 1073 * @attr ref android.R.styleable#TextView_typeface 1074 * @attr ref android.R.styleable#TextView_textStyle 1075 */ 1076 public void setTypeface(Typeface tf, int style) { 1077 if (style > 0) { 1078 if (tf == null) { 1079 tf = Typeface.defaultFromStyle(style); 1080 } else { 1081 tf = Typeface.create(tf, style); 1082 } 1083 1084 setTypeface(tf); 1085 // now compute what (if any) algorithmic styling is needed 1086 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1087 int need = style & ~typefaceStyle; 1088 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1089 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1090 } else { 1091 mTextPaint.setFakeBoldText(false); 1092 mTextPaint.setTextSkewX(0); 1093 setTypeface(tf); 1094 } 1095 } 1096 1097 /** 1098 * Subclasses override this to specify that they have a KeyListener 1099 * by default even if not specifically called for in the XML options. 1100 */ 1101 protected boolean getDefaultEditable() { 1102 return false; 1103 } 1104 1105 /** 1106 * Subclasses override this to specify a default movement method. 1107 */ 1108 protected MovementMethod getDefaultMovementMethod() { 1109 return null; 1110 } 1111 1112 /** 1113 * Return the text the TextView is displaying. If setText() was called with 1114 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1115 * the return value from this method to Spannable or Editable, respectively. 1116 * 1117 * Note: The content of the return value should not be modified. If you want 1118 * a modifiable one, you should make your own copy first. 1119 */ 1120 @ViewDebug.CapturedViewProperty 1121 public CharSequence getText() { 1122 return mText; 1123 } 1124 1125 /** 1126 * Returns the length, in characters, of the text managed by this TextView 1127 */ 1128 public int length() { 1129 return mText.length(); 1130 } 1131 1132 /** 1133 * Return the text the TextView is displaying as an Editable object. If 1134 * the text is not editable, null is returned. 1135 * 1136 * @see #getText 1137 */ 1138 public Editable getEditableText() { 1139 return (mText instanceof Editable) ? (Editable)mText : null; 1140 } 1141 1142 /** 1143 * @return the height of one standard line in pixels. Note that markup 1144 * within the text can cause individual lines to be taller or shorter 1145 * than this height, and the layout may contain additional first- 1146 * or last-line padding. 1147 */ 1148 public int getLineHeight() { 1149 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 1150 } 1151 1152 /** 1153 * @return the Layout that is currently being used to display the text. 1154 * This can be null if the text or width has recently changes. 1155 */ 1156 public final Layout getLayout() { 1157 return mLayout; 1158 } 1159 1160 /** 1161 * @return the current key listener for this TextView. 1162 * This will frequently be null for non-EditText TextViews. 1163 */ 1164 public final KeyListener getKeyListener() { 1165 return mInput; 1166 } 1167 1168 /** 1169 * Sets the key listener to be used with this TextView. This can be null 1170 * to disallow user input. Note that this method has significant and 1171 * subtle interactions with soft keyboards and other input method: 1172 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1173 * for important details. Calling this method will replace the current 1174 * content type of the text view with the content type returned by the 1175 * key listener. 1176 * <p> 1177 * Be warned that if you want a TextView with a key listener or movement 1178 * method not to be focusable, or if you want a TextView without a 1179 * key listener or movement method to be focusable, you must call 1180 * {@link #setFocusable} again after calling this to get the focusability 1181 * back the way you want it. 1182 * 1183 * @attr ref android.R.styleable#TextView_numeric 1184 * @attr ref android.R.styleable#TextView_digits 1185 * @attr ref android.R.styleable#TextView_phoneNumber 1186 * @attr ref android.R.styleable#TextView_inputMethod 1187 * @attr ref android.R.styleable#TextView_capitalize 1188 * @attr ref android.R.styleable#TextView_autoText 1189 */ 1190 public void setKeyListener(KeyListener input) { 1191 setKeyListenerOnly(input); 1192 fixFocusableAndClickableSettings(); 1193 1194 if (input != null) { 1195 try { 1196 mInputType = mInput.getInputType(); 1197 } catch (IncompatibleClassChangeError e) { 1198 mInputType = EditorInfo.TYPE_CLASS_TEXT; 1199 } 1200 // Change inputType, without affecting transformation. 1201 // No need to applySingleLine since mSingleLine is unchanged. 1202 setInputTypeSingleLine(mSingleLine); 1203 } else { 1204 mInputType = EditorInfo.TYPE_NULL; 1205 } 1206 1207 InputMethodManager imm = InputMethodManager.peekInstance(); 1208 if (imm != null) imm.restartInput(this); 1209 } 1210 1211 private void setKeyListenerOnly(KeyListener input) { 1212 mInput = input; 1213 if (mInput != null && !(mText instanceof Editable)) 1214 setText(mText); 1215 1216 setFilters((Editable) mText, mFilters); 1217 } 1218 1219 /** 1220 * @return the movement method being used for this TextView. 1221 * This will frequently be null for non-EditText TextViews. 1222 */ 1223 public final MovementMethod getMovementMethod() { 1224 return mMovement; 1225 } 1226 1227 /** 1228 * Sets the movement method (arrow key handler) to be used for 1229 * this TextView. This can be null to disallow using the arrow keys 1230 * to move the cursor or scroll the view. 1231 * <p> 1232 * Be warned that if you want a TextView with a key listener or movement 1233 * method not to be focusable, or if you want a TextView without a 1234 * key listener or movement method to be focusable, you must call 1235 * {@link #setFocusable} again after calling this to get the focusability 1236 * back the way you want it. 1237 */ 1238 public final void setMovementMethod(MovementMethod movement) { 1239 mMovement = movement; 1240 1241 if (mMovement != null && !(mText instanceof Spannable)) 1242 setText(mText); 1243 1244 fixFocusableAndClickableSettings(); 1245 1246 // SelectionModifierCursorController depends on textCanBeSelected, which depends on mMovement 1247 prepareCursorControllers(); 1248 } 1249 1250 private void fixFocusableAndClickableSettings() { 1251 if ((mMovement != null) || mInput != null) { 1252 setFocusable(true); 1253 setClickable(true); 1254 setLongClickable(true); 1255 } else { 1256 setFocusable(false); 1257 setClickable(false); 1258 setLongClickable(false); 1259 } 1260 } 1261 1262 /** 1263 * @return the current transformation method for this TextView. 1264 * This will frequently be null except for single-line and password 1265 * fields. 1266 */ 1267 public final TransformationMethod getTransformationMethod() { 1268 return mTransformation; 1269 } 1270 1271 /** 1272 * Sets the transformation that is applied to the text that this 1273 * TextView is displaying. 1274 * 1275 * @attr ref android.R.styleable#TextView_password 1276 * @attr ref android.R.styleable#TextView_singleLine 1277 */ 1278 public final void setTransformationMethod(TransformationMethod method) { 1279 if (method == mTransformation) { 1280 // Avoid the setText() below if the transformation is 1281 // the same. 1282 return; 1283 } 1284 if (mTransformation != null) { 1285 if (mText instanceof Spannable) { 1286 ((Spannable) mText).removeSpan(mTransformation); 1287 } 1288 } 1289 1290 mTransformation = method; 1291 1292 setText(mText); 1293 } 1294 1295 /** 1296 * Returns the top padding of the view, plus space for the top 1297 * Drawable if any. 1298 */ 1299 public int getCompoundPaddingTop() { 1300 final Drawables dr = mDrawables; 1301 if (dr == null || dr.mDrawableTop == null) { 1302 return mPaddingTop; 1303 } else { 1304 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1305 } 1306 } 1307 1308 /** 1309 * Returns the bottom padding of the view, plus space for the bottom 1310 * Drawable if any. 1311 */ 1312 public int getCompoundPaddingBottom() { 1313 final Drawables dr = mDrawables; 1314 if (dr == null || dr.mDrawableBottom == null) { 1315 return mPaddingBottom; 1316 } else { 1317 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1318 } 1319 } 1320 1321 /** 1322 * Returns the left padding of the view, plus space for the left 1323 * Drawable if any. 1324 */ 1325 public int getCompoundPaddingLeft() { 1326 final Drawables dr = mDrawables; 1327 if (dr == null || dr.mDrawableLeft == null) { 1328 return mPaddingLeft; 1329 } else { 1330 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1331 } 1332 } 1333 1334 /** 1335 * Returns the right padding of the view, plus space for the right 1336 * Drawable if any. 1337 */ 1338 public int getCompoundPaddingRight() { 1339 final Drawables dr = mDrawables; 1340 if (dr == null || dr.mDrawableRight == null) { 1341 return mPaddingRight; 1342 } else { 1343 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1344 } 1345 } 1346 1347 /** 1348 * Returns the extended top padding of the view, including both the 1349 * top Drawable if any and any extra space to keep more than maxLines 1350 * of text from showing. It is only valid to call this after measuring. 1351 */ 1352 public int getExtendedPaddingTop() { 1353 if (mMaxMode != LINES) { 1354 return getCompoundPaddingTop(); 1355 } 1356 1357 if (mLayout.getLineCount() <= mMaximum) { 1358 return getCompoundPaddingTop(); 1359 } 1360 1361 int top = getCompoundPaddingTop(); 1362 int bottom = getCompoundPaddingBottom(); 1363 int viewht = getHeight() - top - bottom; 1364 int layoutht = mLayout.getLineTop(mMaximum); 1365 1366 if (layoutht >= viewht) { 1367 return top; 1368 } 1369 1370 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1371 if (gravity == Gravity.TOP) { 1372 return top; 1373 } else if (gravity == Gravity.BOTTOM) { 1374 return top + viewht - layoutht; 1375 } else { // (gravity == Gravity.CENTER_VERTICAL) 1376 return top + (viewht - layoutht) / 2; 1377 } 1378 } 1379 1380 /** 1381 * Returns the extended bottom padding of the view, including both the 1382 * bottom Drawable if any and any extra space to keep more than maxLines 1383 * of text from showing. It is only valid to call this after measuring. 1384 */ 1385 public int getExtendedPaddingBottom() { 1386 if (mMaxMode != LINES) { 1387 return getCompoundPaddingBottom(); 1388 } 1389 1390 if (mLayout.getLineCount() <= mMaximum) { 1391 return getCompoundPaddingBottom(); 1392 } 1393 1394 int top = getCompoundPaddingTop(); 1395 int bottom = getCompoundPaddingBottom(); 1396 int viewht = getHeight() - top - bottom; 1397 int layoutht = mLayout.getLineTop(mMaximum); 1398 1399 if (layoutht >= viewht) { 1400 return bottom; 1401 } 1402 1403 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1404 if (gravity == Gravity.TOP) { 1405 return bottom + viewht - layoutht; 1406 } else if (gravity == Gravity.BOTTOM) { 1407 return bottom; 1408 } else { // (gravity == Gravity.CENTER_VERTICAL) 1409 return bottom + (viewht - layoutht) / 2; 1410 } 1411 } 1412 1413 /** 1414 * Returns the total left padding of the view, including the left 1415 * Drawable if any. 1416 */ 1417 public int getTotalPaddingLeft() { 1418 return getCompoundPaddingLeft(); 1419 } 1420 1421 /** 1422 * Returns the total right padding of the view, including the right 1423 * Drawable if any. 1424 */ 1425 public int getTotalPaddingRight() { 1426 return getCompoundPaddingRight(); 1427 } 1428 1429 /** 1430 * Returns the total top padding of the view, including the top 1431 * Drawable if any, the extra space to keep more than maxLines 1432 * from showing, and the vertical offset for gravity, if any. 1433 */ 1434 public int getTotalPaddingTop() { 1435 return getExtendedPaddingTop() + getVerticalOffset(true); 1436 } 1437 1438 /** 1439 * Returns the total bottom padding of the view, including the bottom 1440 * Drawable if any, the extra space to keep more than maxLines 1441 * from showing, and the vertical offset for gravity, if any. 1442 */ 1443 public int getTotalPaddingBottom() { 1444 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1445 } 1446 1447 /** 1448 * Sets the Drawables (if any) to appear to the left of, above, 1449 * to the right of, and below the text. Use null if you do not 1450 * want a Drawable there. The Drawables must already have had 1451 * {@link Drawable#setBounds} called. 1452 * 1453 * @attr ref android.R.styleable#TextView_drawableLeft 1454 * @attr ref android.R.styleable#TextView_drawableTop 1455 * @attr ref android.R.styleable#TextView_drawableRight 1456 * @attr ref android.R.styleable#TextView_drawableBottom 1457 */ 1458 public void setCompoundDrawables(Drawable left, Drawable top, 1459 Drawable right, Drawable bottom) { 1460 Drawables dr = mDrawables; 1461 1462 final boolean drawables = left != null || top != null 1463 || right != null || bottom != null; 1464 1465 if (!drawables) { 1466 // Clearing drawables... can we free the data structure? 1467 if (dr != null) { 1468 if (dr.mDrawablePadding == 0) { 1469 mDrawables = null; 1470 } else { 1471 // We need to retain the last set padding, so just clear 1472 // out all of the fields in the existing structure. 1473 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1474 dr.mDrawableLeft = null; 1475 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1476 dr.mDrawableTop = null; 1477 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1478 dr.mDrawableRight = null; 1479 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1480 dr.mDrawableBottom = null; 1481 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1482 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1483 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1484 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1485 } 1486 } 1487 } else { 1488 if (dr == null) { 1489 mDrawables = dr = new Drawables(); 1490 } 1491 1492 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1493 dr.mDrawableLeft.setCallback(null); 1494 } 1495 dr.mDrawableLeft = left; 1496 1497 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1498 dr.mDrawableTop.setCallback(null); 1499 } 1500 dr.mDrawableTop = top; 1501 1502 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1503 dr.mDrawableRight.setCallback(null); 1504 } 1505 dr.mDrawableRight = right; 1506 1507 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1508 dr.mDrawableBottom.setCallback(null); 1509 } 1510 dr.mDrawableBottom = bottom; 1511 1512 final Rect compoundRect = dr.mCompoundRect; 1513 int[] state; 1514 1515 state = getDrawableState(); 1516 1517 if (left != null) { 1518 left.setState(state); 1519 left.copyBounds(compoundRect); 1520 left.setCallback(this); 1521 dr.mDrawableSizeLeft = compoundRect.width(); 1522 dr.mDrawableHeightLeft = compoundRect.height(); 1523 } else { 1524 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1525 } 1526 1527 if (right != null) { 1528 right.setState(state); 1529 right.copyBounds(compoundRect); 1530 right.setCallback(this); 1531 dr.mDrawableSizeRight = compoundRect.width(); 1532 dr.mDrawableHeightRight = compoundRect.height(); 1533 } else { 1534 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1535 } 1536 1537 if (top != null) { 1538 top.setState(state); 1539 top.copyBounds(compoundRect); 1540 top.setCallback(this); 1541 dr.mDrawableSizeTop = compoundRect.height(); 1542 dr.mDrawableWidthTop = compoundRect.width(); 1543 } else { 1544 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1545 } 1546 1547 if (bottom != null) { 1548 bottom.setState(state); 1549 bottom.copyBounds(compoundRect); 1550 bottom.setCallback(this); 1551 dr.mDrawableSizeBottom = compoundRect.height(); 1552 dr.mDrawableWidthBottom = compoundRect.width(); 1553 } else { 1554 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1555 } 1556 } 1557 1558 invalidate(); 1559 requestLayout(); 1560 } 1561 1562 /** 1563 * Sets the Drawables (if any) to appear to the left of, above, 1564 * to the right of, and below the text. Use 0 if you do not 1565 * want a Drawable there. The Drawables' bounds will be set to 1566 * their intrinsic bounds. 1567 * 1568 * @param left Resource identifier of the left Drawable. 1569 * @param top Resource identifier of the top Drawable. 1570 * @param right Resource identifier of the right Drawable. 1571 * @param bottom Resource identifier of the bottom Drawable. 1572 * 1573 * @attr ref android.R.styleable#TextView_drawableLeft 1574 * @attr ref android.R.styleable#TextView_drawableTop 1575 * @attr ref android.R.styleable#TextView_drawableRight 1576 * @attr ref android.R.styleable#TextView_drawableBottom 1577 */ 1578 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1579 final Resources resources = getContext().getResources(); 1580 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1581 top != 0 ? resources.getDrawable(top) : null, 1582 right != 0 ? resources.getDrawable(right) : null, 1583 bottom != 0 ? resources.getDrawable(bottom) : null); 1584 } 1585 1586 /** 1587 * Sets the Drawables (if any) to appear to the left of, above, 1588 * to the right of, and below the text. Use null if you do not 1589 * want a Drawable there. The Drawables' bounds will be set to 1590 * their intrinsic bounds. 1591 * 1592 * @attr ref android.R.styleable#TextView_drawableLeft 1593 * @attr ref android.R.styleable#TextView_drawableTop 1594 * @attr ref android.R.styleable#TextView_drawableRight 1595 * @attr ref android.R.styleable#TextView_drawableBottom 1596 */ 1597 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1598 Drawable right, Drawable bottom) { 1599 1600 if (left != null) { 1601 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1602 } 1603 if (right != null) { 1604 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1605 } 1606 if (top != null) { 1607 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1608 } 1609 if (bottom != null) { 1610 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1611 } 1612 setCompoundDrawables(left, top, right, bottom); 1613 } 1614 1615 /** 1616 * Returns drawables for the left, top, right, and bottom borders. 1617 */ 1618 public Drawable[] getCompoundDrawables() { 1619 final Drawables dr = mDrawables; 1620 if (dr != null) { 1621 return new Drawable[] { 1622 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 1623 }; 1624 } else { 1625 return new Drawable[] { null, null, null, null }; 1626 } 1627 } 1628 1629 /** 1630 * Sets the size of the padding between the compound drawables and 1631 * the text. 1632 * 1633 * @attr ref android.R.styleable#TextView_drawablePadding 1634 */ 1635 public void setCompoundDrawablePadding(int pad) { 1636 Drawables dr = mDrawables; 1637 if (pad == 0) { 1638 if (dr != null) { 1639 dr.mDrawablePadding = pad; 1640 } 1641 } else { 1642 if (dr == null) { 1643 mDrawables = dr = new Drawables(); 1644 } 1645 dr.mDrawablePadding = pad; 1646 } 1647 1648 invalidate(); 1649 requestLayout(); 1650 } 1651 1652 /** 1653 * Returns the padding between the compound drawables and the text. 1654 */ 1655 public int getCompoundDrawablePadding() { 1656 final Drawables dr = mDrawables; 1657 return dr != null ? dr.mDrawablePadding : 0; 1658 } 1659 1660 @Override 1661 public void setPadding(int left, int top, int right, int bottom) { 1662 if (left != mPaddingLeft || 1663 right != mPaddingRight || 1664 top != mPaddingTop || 1665 bottom != mPaddingBottom) { 1666 nullLayouts(); 1667 } 1668 1669 // the super call will requestLayout() 1670 super.setPadding(left, top, right, bottom); 1671 invalidate(); 1672 } 1673 1674 /** 1675 * Gets the autolink mask of the text. See {@link 1676 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1677 * possible values. 1678 * 1679 * @attr ref android.R.styleable#TextView_autoLink 1680 */ 1681 public final int getAutoLinkMask() { 1682 return mAutoLinkMask; 1683 } 1684 1685 /** 1686 * Sets the text color, size, style, hint color, and highlight color 1687 * from the specified TextAppearance resource. 1688 */ 1689 public void setTextAppearance(Context context, int resid) { 1690 TypedArray appearance = 1691 context.obtainStyledAttributes(resid, 1692 com.android.internal.R.styleable.TextAppearance); 1693 1694 int color; 1695 ColorStateList colors; 1696 int ts; 1697 1698 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 1699 if (color != 0) { 1700 setHighlightColor(color); 1701 } 1702 1703 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1704 TextAppearance_textColor); 1705 if (colors != null) { 1706 setTextColor(colors); 1707 } 1708 1709 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 1710 TextAppearance_textSize, 0); 1711 if (ts != 0) { 1712 setRawTextSize(ts); 1713 } 1714 1715 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1716 TextAppearance_textColorHint); 1717 if (colors != null) { 1718 setHintTextColor(colors); 1719 } 1720 1721 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1722 TextAppearance_textColorLink); 1723 if (colors != null) { 1724 setLinkTextColor(colors); 1725 } 1726 1727 int typefaceIndex, styleIndex; 1728 1729 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 1730 TextAppearance_typeface, -1); 1731 styleIndex = appearance.getInt(com.android.internal.R.styleable. 1732 TextAppearance_textStyle, -1); 1733 1734 setTypefaceByIndex(typefaceIndex, styleIndex); 1735 1736 appearance.recycle(); 1737 } 1738 1739 /** 1740 * @return the size (in pixels) of the default text size in this TextView. 1741 */ 1742 public float getTextSize() { 1743 return mTextPaint.getTextSize(); 1744 } 1745 1746 /** 1747 * Set the default text size to the given value, interpreted as "scaled 1748 * pixel" units. This size is adjusted based on the current density and 1749 * user font size preference. 1750 * 1751 * @param size The scaled pixel size. 1752 * 1753 * @attr ref android.R.styleable#TextView_textSize 1754 */ 1755 @android.view.RemotableViewMethod 1756 public void setTextSize(float size) { 1757 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 1758 } 1759 1760 /** 1761 * Set the default text size to a given unit and value. See {@link 1762 * TypedValue} for the possible dimension units. 1763 * 1764 * @param unit The desired dimension unit. 1765 * @param size The desired size in the given units. 1766 * 1767 * @attr ref android.R.styleable#TextView_textSize 1768 */ 1769 public void setTextSize(int unit, float size) { 1770 Context c = getContext(); 1771 Resources r; 1772 1773 if (c == null) 1774 r = Resources.getSystem(); 1775 else 1776 r = c.getResources(); 1777 1778 setRawTextSize(TypedValue.applyDimension( 1779 unit, size, r.getDisplayMetrics())); 1780 } 1781 1782 private void setRawTextSize(float size) { 1783 if (size != mTextPaint.getTextSize()) { 1784 mTextPaint.setTextSize(size); 1785 1786 if (mLayout != null) { 1787 nullLayouts(); 1788 requestLayout(); 1789 invalidate(); 1790 } 1791 } 1792 } 1793 1794 /** 1795 * @return the extent by which text is currently being stretched 1796 * horizontally. This will usually be 1. 1797 */ 1798 public float getTextScaleX() { 1799 return mTextPaint.getTextScaleX(); 1800 } 1801 1802 /** 1803 * Sets the extent by which text should be stretched horizontally. 1804 * 1805 * @attr ref android.R.styleable#TextView_textScaleX 1806 */ 1807 @android.view.RemotableViewMethod 1808 public void setTextScaleX(float size) { 1809 if (size != mTextPaint.getTextScaleX()) { 1810 mUserSetTextScaleX = true; 1811 mTextPaint.setTextScaleX(size); 1812 1813 if (mLayout != null) { 1814 nullLayouts(); 1815 requestLayout(); 1816 invalidate(); 1817 } 1818 } 1819 } 1820 1821 /** 1822 * Sets the typeface and style in which the text should be displayed. 1823 * Note that not all Typeface families actually have bold and italic 1824 * variants, so you may need to use 1825 * {@link #setTypeface(Typeface, int)} to get the appearance 1826 * that you actually want. 1827 * 1828 * @attr ref android.R.styleable#TextView_typeface 1829 * @attr ref android.R.styleable#TextView_textStyle 1830 */ 1831 public void setTypeface(Typeface tf) { 1832 if (mTextPaint.getTypeface() != tf) { 1833 mTextPaint.setTypeface(tf); 1834 1835 if (mLayout != null) { 1836 nullLayouts(); 1837 requestLayout(); 1838 invalidate(); 1839 } 1840 } 1841 } 1842 1843 /** 1844 * @return the current typeface and style in which the text is being 1845 * displayed. 1846 */ 1847 public Typeface getTypeface() { 1848 return mTextPaint.getTypeface(); 1849 } 1850 1851 /** 1852 * Sets the text color for all the states (normal, selected, 1853 * focused) to be this color. 1854 * 1855 * @attr ref android.R.styleable#TextView_textColor 1856 */ 1857 @android.view.RemotableViewMethod 1858 public void setTextColor(int color) { 1859 mTextColor = ColorStateList.valueOf(color); 1860 updateTextColors(); 1861 } 1862 1863 /** 1864 * Sets the text color. 1865 * 1866 * @attr ref android.R.styleable#TextView_textColor 1867 */ 1868 public void setTextColor(ColorStateList colors) { 1869 if (colors == null) { 1870 throw new NullPointerException(); 1871 } 1872 1873 mTextColor = colors; 1874 updateTextColors(); 1875 } 1876 1877 /** 1878 * Return the set of text colors. 1879 * 1880 * @return Returns the set of text colors. 1881 */ 1882 public final ColorStateList getTextColors() { 1883 return mTextColor; 1884 } 1885 1886 /** 1887 * <p>Return the current color selected for normal text.</p> 1888 * 1889 * @return Returns the current text color. 1890 */ 1891 public final int getCurrentTextColor() { 1892 return mCurTextColor; 1893 } 1894 1895 /** 1896 * Sets the color used to display the selection highlight. 1897 * 1898 * @attr ref android.R.styleable#TextView_textColorHighlight 1899 */ 1900 @android.view.RemotableViewMethod 1901 public void setHighlightColor(int color) { 1902 if (mHighlightColor != color) { 1903 mHighlightColor = color; 1904 invalidate(); 1905 } 1906 } 1907 1908 /** 1909 * Gives the text a shadow of the specified radius and color, the specified 1910 * distance from its normal position. 1911 * 1912 * @attr ref android.R.styleable#TextView_shadowColor 1913 * @attr ref android.R.styleable#TextView_shadowDx 1914 * @attr ref android.R.styleable#TextView_shadowDy 1915 * @attr ref android.R.styleable#TextView_shadowRadius 1916 */ 1917 public void setShadowLayer(float radius, float dx, float dy, int color) { 1918 mTextPaint.setShadowLayer(radius, dx, dy, color); 1919 1920 mShadowRadius = radius; 1921 mShadowDx = dx; 1922 mShadowDy = dy; 1923 1924 invalidate(); 1925 } 1926 1927 /** 1928 * @return the base paint used for the text. Please use this only to 1929 * consult the Paint's properties and not to change them. 1930 */ 1931 public TextPaint getPaint() { 1932 return mTextPaint; 1933 } 1934 1935 /** 1936 * Sets the autolink mask of the text. See {@link 1937 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1938 * possible values. 1939 * 1940 * @attr ref android.R.styleable#TextView_autoLink 1941 */ 1942 @android.view.RemotableViewMethod 1943 public final void setAutoLinkMask(int mask) { 1944 mAutoLinkMask = mask; 1945 } 1946 1947 /** 1948 * Sets whether the movement method will automatically be set to 1949 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1950 * set to nonzero and links are detected in {@link #setText}. 1951 * The default is true. 1952 * 1953 * @attr ref android.R.styleable#TextView_linksClickable 1954 */ 1955 @android.view.RemotableViewMethod 1956 public final void setLinksClickable(boolean whether) { 1957 mLinksClickable = whether; 1958 } 1959 1960 /** 1961 * Returns whether the movement method will automatically be set to 1962 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1963 * set to nonzero and links are detected in {@link #setText}. 1964 * The default is true. 1965 * 1966 * @attr ref android.R.styleable#TextView_linksClickable 1967 */ 1968 public final boolean getLinksClickable() { 1969 return mLinksClickable; 1970 } 1971 1972 /** 1973 * Returns the list of URLSpans attached to the text 1974 * (by {@link Linkify} or otherwise) if any. You can call 1975 * {@link URLSpan#getURL} on them to find where they link to 1976 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 1977 * to find the region of the text they are attached to. 1978 */ 1979 public URLSpan[] getUrls() { 1980 if (mText instanceof Spanned) { 1981 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 1982 } else { 1983 return new URLSpan[0]; 1984 } 1985 } 1986 1987 /** 1988 * Sets the color of the hint text. 1989 * 1990 * @attr ref android.R.styleable#TextView_textColorHint 1991 */ 1992 @android.view.RemotableViewMethod 1993 public final void setHintTextColor(int color) { 1994 mHintTextColor = ColorStateList.valueOf(color); 1995 updateTextColors(); 1996 } 1997 1998 /** 1999 * Sets the color of the hint text. 2000 * 2001 * @attr ref android.R.styleable#TextView_textColorHint 2002 */ 2003 public final void setHintTextColor(ColorStateList colors) { 2004 mHintTextColor = colors; 2005 updateTextColors(); 2006 } 2007 2008 /** 2009 * <p>Return the color used to paint the hint text.</p> 2010 * 2011 * @return Returns the list of hint text colors. 2012 */ 2013 public final ColorStateList getHintTextColors() { 2014 return mHintTextColor; 2015 } 2016 2017 /** 2018 * <p>Return the current color selected to paint the hint text.</p> 2019 * 2020 * @return Returns the current hint text color. 2021 */ 2022 public final int getCurrentHintTextColor() { 2023 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 2024 } 2025 2026 /** 2027 * Sets the color of links in the text. 2028 * 2029 * @attr ref android.R.styleable#TextView_textColorLink 2030 */ 2031 @android.view.RemotableViewMethod 2032 public final void setLinkTextColor(int color) { 2033 mLinkTextColor = ColorStateList.valueOf(color); 2034 updateTextColors(); 2035 } 2036 2037 /** 2038 * Sets the color of links in the text. 2039 * 2040 * @attr ref android.R.styleable#TextView_textColorLink 2041 */ 2042 public final void setLinkTextColor(ColorStateList colors) { 2043 mLinkTextColor = colors; 2044 updateTextColors(); 2045 } 2046 2047 /** 2048 * <p>Returns the color used to paint links in the text.</p> 2049 * 2050 * @return Returns the list of link text colors. 2051 */ 2052 public final ColorStateList getLinkTextColors() { 2053 return mLinkTextColor; 2054 } 2055 2056 /** 2057 * Sets the horizontal alignment of the text and the 2058 * vertical gravity that will be used when there is extra space 2059 * in the TextView beyond what is required for the text itself. 2060 * 2061 * @see android.view.Gravity 2062 * @attr ref android.R.styleable#TextView_gravity 2063 */ 2064 public void setGravity(int gravity) { 2065 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == 0) { 2066 gravity |= Gravity.LEFT; 2067 } 2068 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2069 gravity |= Gravity.TOP; 2070 } 2071 2072 boolean newLayout = false; 2073 2074 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) != 2075 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK)) { 2076 newLayout = true; 2077 } 2078 2079 if (gravity != mGravity) { 2080 invalidate(); 2081 } 2082 2083 mGravity = gravity; 2084 2085 if (mLayout != null && newLayout) { 2086 // XXX this is heavy-handed because no actual content changes. 2087 int want = mLayout.getWidth(); 2088 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2089 2090 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2091 mRight - mLeft - getCompoundPaddingLeft() - 2092 getCompoundPaddingRight(), true); 2093 } 2094 } 2095 2096 /** 2097 * Returns the horizontal and vertical alignment of this TextView. 2098 * 2099 * @see android.view.Gravity 2100 * @attr ref android.R.styleable#TextView_gravity 2101 */ 2102 public int getGravity() { 2103 return mGravity; 2104 } 2105 2106 /** 2107 * @return the flags on the Paint being used to display the text. 2108 * @see Paint#getFlags 2109 */ 2110 public int getPaintFlags() { 2111 return mTextPaint.getFlags(); 2112 } 2113 2114 /** 2115 * Sets flags on the Paint being used to display the text and 2116 * reflows the text if they are different from the old flags. 2117 * @see Paint#setFlags 2118 */ 2119 @android.view.RemotableViewMethod 2120 public void setPaintFlags(int flags) { 2121 if (mTextPaint.getFlags() != flags) { 2122 mTextPaint.setFlags(flags); 2123 2124 if (mLayout != null) { 2125 nullLayouts(); 2126 requestLayout(); 2127 invalidate(); 2128 } 2129 } 2130 } 2131 2132 /** 2133 * Sets whether the text should be allowed to be wider than the 2134 * View is. If false, it will be wrapped to the width of the View. 2135 * 2136 * @attr ref android.R.styleable#TextView_scrollHorizontally 2137 */ 2138 public void setHorizontallyScrolling(boolean whether) { 2139 mHorizontallyScrolling = whether; 2140 2141 if (mLayout != null) { 2142 nullLayouts(); 2143 requestLayout(); 2144 invalidate(); 2145 } 2146 } 2147 2148 /** 2149 * Makes the TextView at least this many lines tall. 2150 * 2151 * Setting this value overrides any other (minimum) height setting. A single line TextView will 2152 * set this value to 1. 2153 * 2154 * @attr ref android.R.styleable#TextView_minLines 2155 */ 2156 @android.view.RemotableViewMethod 2157 public void setMinLines(int minlines) { 2158 mMinimum = minlines; 2159 mMinMode = LINES; 2160 2161 requestLayout(); 2162 invalidate(); 2163 } 2164 2165 /** 2166 * Makes the TextView at least this many pixels tall. 2167 * 2168 * Setting this value overrides any other (minimum) number of lines setting. 2169 * 2170 * @attr ref android.R.styleable#TextView_minHeight 2171 */ 2172 @android.view.RemotableViewMethod 2173 public void setMinHeight(int minHeight) { 2174 mMinimum = minHeight; 2175 mMinMode = PIXELS; 2176 2177 requestLayout(); 2178 invalidate(); 2179 } 2180 2181 /** 2182 * Makes the TextView at most this many lines tall. 2183 * 2184 * Setting this value overrides any other (maximum) height setting. 2185 * 2186 * @attr ref android.R.styleable#TextView_maxLines 2187 */ 2188 @android.view.RemotableViewMethod 2189 public void setMaxLines(int maxlines) { 2190 mMaximum = maxlines; 2191 mMaxMode = LINES; 2192 2193 requestLayout(); 2194 invalidate(); 2195 } 2196 2197 /** 2198 * Makes the TextView at most this many pixels tall. This option is mutually exclusive with the 2199 * {@link #setMaxLines(int)} method. 2200 * 2201 * Setting this value overrides any other (maximum) number of lines setting. 2202 * 2203 * @attr ref android.R.styleable#TextView_maxHeight 2204 */ 2205 @android.view.RemotableViewMethod 2206 public void setMaxHeight(int maxHeight) { 2207 mMaximum = maxHeight; 2208 mMaxMode = PIXELS; 2209 2210 requestLayout(); 2211 invalidate(); 2212 } 2213 2214 /** 2215 * Makes the TextView exactly this many lines tall. 2216 * 2217 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2218 * height setting. A single line TextView will set this value to 1. 2219 * 2220 * @attr ref android.R.styleable#TextView_lines 2221 */ 2222 @android.view.RemotableViewMethod 2223 public void setLines(int lines) { 2224 mMaximum = mMinimum = lines; 2225 mMaxMode = mMinMode = LINES; 2226 2227 requestLayout(); 2228 invalidate(); 2229 } 2230 2231 /** 2232 * Makes the TextView exactly this many pixels tall. 2233 * You could do the same thing by specifying this number in the 2234 * LayoutParams. 2235 * 2236 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2237 * height setting. 2238 * 2239 * @attr ref android.R.styleable#TextView_height 2240 */ 2241 @android.view.RemotableViewMethod 2242 public void setHeight(int pixels) { 2243 mMaximum = mMinimum = pixels; 2244 mMaxMode = mMinMode = PIXELS; 2245 2246 requestLayout(); 2247 invalidate(); 2248 } 2249 2250 /** 2251 * Makes the TextView at least this many ems wide 2252 * 2253 * @attr ref android.R.styleable#TextView_minEms 2254 */ 2255 @android.view.RemotableViewMethod 2256 public void setMinEms(int minems) { 2257 mMinWidth = minems; 2258 mMinWidthMode = EMS; 2259 2260 requestLayout(); 2261 invalidate(); 2262 } 2263 2264 /** 2265 * Makes the TextView at least this many pixels wide 2266 * 2267 * @attr ref android.R.styleable#TextView_minWidth 2268 */ 2269 @android.view.RemotableViewMethod 2270 public void setMinWidth(int minpixels) { 2271 mMinWidth = minpixels; 2272 mMinWidthMode = PIXELS; 2273 2274 requestLayout(); 2275 invalidate(); 2276 } 2277 2278 /** 2279 * Makes the TextView at most this many ems wide 2280 * 2281 * @attr ref android.R.styleable#TextView_maxEms 2282 */ 2283 @android.view.RemotableViewMethod 2284 public void setMaxEms(int maxems) { 2285 mMaxWidth = maxems; 2286 mMaxWidthMode = EMS; 2287 2288 requestLayout(); 2289 invalidate(); 2290 } 2291 2292 /** 2293 * Makes the TextView at most this many pixels wide 2294 * 2295 * @attr ref android.R.styleable#TextView_maxWidth 2296 */ 2297 @android.view.RemotableViewMethod 2298 public void setMaxWidth(int maxpixels) { 2299 mMaxWidth = maxpixels; 2300 mMaxWidthMode = PIXELS; 2301 2302 requestLayout(); 2303 invalidate(); 2304 } 2305 2306 /** 2307 * Makes the TextView exactly this many ems wide 2308 * 2309 * @attr ref android.R.styleable#TextView_ems 2310 */ 2311 @android.view.RemotableViewMethod 2312 public void setEms(int ems) { 2313 mMaxWidth = mMinWidth = ems; 2314 mMaxWidthMode = mMinWidthMode = EMS; 2315 2316 requestLayout(); 2317 invalidate(); 2318 } 2319 2320 /** 2321 * Makes the TextView exactly this many pixels wide. 2322 * You could do the same thing by specifying this number in the 2323 * LayoutParams. 2324 * 2325 * @attr ref android.R.styleable#TextView_width 2326 */ 2327 @android.view.RemotableViewMethod 2328 public void setWidth(int pixels) { 2329 mMaxWidth = mMinWidth = pixels; 2330 mMaxWidthMode = mMinWidthMode = PIXELS; 2331 2332 requestLayout(); 2333 invalidate(); 2334 } 2335 2336 2337 /** 2338 * Sets line spacing for this TextView. Each line will have its height 2339 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2340 * 2341 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2342 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2343 */ 2344 public void setLineSpacing(float add, float mult) { 2345 mSpacingMult = mult; 2346 mSpacingAdd = add; 2347 2348 if (mLayout != null) { 2349 nullLayouts(); 2350 requestLayout(); 2351 invalidate(); 2352 } 2353 } 2354 2355 /** 2356 * Convenience method: Append the specified text to the TextView's 2357 * display buffer, upgrading it to BufferType.EDITABLE if it was 2358 * not already editable. 2359 */ 2360 public final void append(CharSequence text) { 2361 append(text, 0, text.length()); 2362 } 2363 2364 /** 2365 * Convenience method: Append the specified text slice to the TextView's 2366 * display buffer, upgrading it to BufferType.EDITABLE if it was 2367 * not already editable. 2368 */ 2369 public void append(CharSequence text, int start, int end) { 2370 if (!(mText instanceof Editable)) { 2371 setText(mText, BufferType.EDITABLE); 2372 } 2373 2374 ((Editable) mText).append(text, start, end); 2375 } 2376 2377 private void updateTextColors() { 2378 boolean inval = false; 2379 int color = mTextColor.getColorForState(getDrawableState(), 0); 2380 if (color != mCurTextColor) { 2381 mCurTextColor = color; 2382 inval = true; 2383 } 2384 if (mLinkTextColor != null) { 2385 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2386 if (color != mTextPaint.linkColor) { 2387 mTextPaint.linkColor = color; 2388 inval = true; 2389 } 2390 } 2391 if (mHintTextColor != null) { 2392 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2393 if (color != mCurHintTextColor && mText.length() == 0) { 2394 mCurHintTextColor = color; 2395 inval = true; 2396 } 2397 } 2398 if (inval) { 2399 invalidate(); 2400 } 2401 } 2402 2403 @Override 2404 protected void drawableStateChanged() { 2405 super.drawableStateChanged(); 2406 if (mTextColor != null && mTextColor.isStateful() 2407 || (mHintTextColor != null && mHintTextColor.isStateful()) 2408 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2409 updateTextColors(); 2410 } 2411 2412 final Drawables dr = mDrawables; 2413 if (dr != null) { 2414 int[] state = getDrawableState(); 2415 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2416 dr.mDrawableTop.setState(state); 2417 } 2418 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2419 dr.mDrawableBottom.setState(state); 2420 } 2421 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2422 dr.mDrawableLeft.setState(state); 2423 } 2424 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2425 dr.mDrawableRight.setState(state); 2426 } 2427 } 2428 } 2429 2430 /** 2431 * User interface state that is stored by TextView for implementing 2432 * {@link View#onSaveInstanceState}. 2433 */ 2434 public static class SavedState extends BaseSavedState { 2435 int selStart; 2436 int selEnd; 2437 CharSequence text; 2438 boolean frozenWithFocus; 2439 CharSequence error; 2440 2441 SavedState(Parcelable superState) { 2442 super(superState); 2443 } 2444 2445 @Override 2446 public void writeToParcel(Parcel out, int flags) { 2447 super.writeToParcel(out, flags); 2448 out.writeInt(selStart); 2449 out.writeInt(selEnd); 2450 out.writeInt(frozenWithFocus ? 1 : 0); 2451 TextUtils.writeToParcel(text, out, flags); 2452 2453 if (error == null) { 2454 out.writeInt(0); 2455 } else { 2456 out.writeInt(1); 2457 TextUtils.writeToParcel(error, out, flags); 2458 } 2459 } 2460 2461 @Override 2462 public String toString() { 2463 String str = "TextView.SavedState{" 2464 + Integer.toHexString(System.identityHashCode(this)) 2465 + " start=" + selStart + " end=" + selEnd; 2466 if (text != null) { 2467 str += " text=" + text; 2468 } 2469 return str + "}"; 2470 } 2471 2472 @SuppressWarnings("hiding") 2473 public static final Parcelable.Creator<SavedState> CREATOR 2474 = new Parcelable.Creator<SavedState>() { 2475 public SavedState createFromParcel(Parcel in) { 2476 return new SavedState(in); 2477 } 2478 2479 public SavedState[] newArray(int size) { 2480 return new SavedState[size]; 2481 } 2482 }; 2483 2484 private SavedState(Parcel in) { 2485 super(in); 2486 selStart = in.readInt(); 2487 selEnd = in.readInt(); 2488 frozenWithFocus = (in.readInt() != 0); 2489 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2490 2491 if (in.readInt() != 0) { 2492 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2493 } 2494 } 2495 } 2496 2497 @Override 2498 public Parcelable onSaveInstanceState() { 2499 Parcelable superState = super.onSaveInstanceState(); 2500 2501 // Save state if we are forced to 2502 boolean save = mFreezesText; 2503 int start = 0; 2504 int end = 0; 2505 2506 if (mText != null) { 2507 start = getSelectionStart(); 2508 end = getSelectionEnd(); 2509 if (start >= 0 || end >= 0) { 2510 // Or save state if there is a selection 2511 save = true; 2512 } 2513 } 2514 2515 if (save) { 2516 SavedState ss = new SavedState(superState); 2517 // XXX Should also save the current scroll position! 2518 ss.selStart = start; 2519 ss.selEnd = end; 2520 2521 if (mText instanceof Spanned) { 2522 /* 2523 * Calling setText() strips off any ChangeWatchers; 2524 * strip them now to avoid leaking references. 2525 * But do it to a copy so that if there are any 2526 * further changes to the text of this view, it 2527 * won't get into an inconsistent state. 2528 */ 2529 2530 Spannable sp = new SpannableString(mText); 2531 2532 for (ChangeWatcher cw : 2533 sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2534 sp.removeSpan(cw); 2535 } 2536 2537 ss.text = sp; 2538 } else { 2539 ss.text = mText.toString(); 2540 } 2541 2542 if (isFocused() && start >= 0 && end >= 0) { 2543 ss.frozenWithFocus = true; 2544 } 2545 2546 ss.error = mError; 2547 2548 return ss; 2549 } 2550 2551 return superState; 2552 } 2553 2554 @Override 2555 public void onRestoreInstanceState(Parcelable state) { 2556 if (!(state instanceof SavedState)) { 2557 super.onRestoreInstanceState(state); 2558 return; 2559 } 2560 2561 SavedState ss = (SavedState)state; 2562 super.onRestoreInstanceState(ss.getSuperState()); 2563 2564 // XXX restore buffer type too, as well as lots of other stuff 2565 if (ss.text != null) { 2566 setText(ss.text); 2567 } 2568 2569 if (ss.selStart >= 0 && ss.selEnd >= 0) { 2570 if (mText instanceof Spannable) { 2571 int len = mText.length(); 2572 2573 if (ss.selStart > len || ss.selEnd > len) { 2574 String restored = ""; 2575 2576 if (ss.text != null) { 2577 restored = "(restored) "; 2578 } 2579 2580 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 2581 "/" + ss.selEnd + " out of range for " + restored + 2582 "text " + mText); 2583 } else { 2584 Selection.setSelection((Spannable) mText, ss.selStart, 2585 ss.selEnd); 2586 2587 if (ss.frozenWithFocus) { 2588 mFrozenWithFocus = true; 2589 } 2590 } 2591 } 2592 } 2593 2594 if (ss.error != null) { 2595 final CharSequence error = ss.error; 2596 // Display the error later, after the first layout pass 2597 post(new Runnable() { 2598 public void run() { 2599 setError(error); 2600 } 2601 }); 2602 } 2603 } 2604 2605 /** 2606 * Control whether this text view saves its entire text contents when 2607 * freezing to an icicle, in addition to dynamic state such as cursor 2608 * position. By default this is false, not saving the text. Set to true 2609 * if the text in the text view is not being saved somewhere else in 2610 * persistent storage (such as in a content provider) so that if the 2611 * view is later thawed the user will not lose their data. 2612 * 2613 * @param freezesText Controls whether a frozen icicle should include the 2614 * entire text data: true to include it, false to not. 2615 * 2616 * @attr ref android.R.styleable#TextView_freezesText 2617 */ 2618 @android.view.RemotableViewMethod 2619 public void setFreezesText(boolean freezesText) { 2620 mFreezesText = freezesText; 2621 } 2622 2623 /** 2624 * Return whether this text view is including its entire text contents 2625 * in frozen icicles. 2626 * 2627 * @return Returns true if text is included, false if it isn't. 2628 * 2629 * @see #setFreezesText 2630 */ 2631 public boolean getFreezesText() { 2632 return mFreezesText; 2633 } 2634 2635 /////////////////////////////////////////////////////////////////////////// 2636 2637 /** 2638 * Sets the Factory used to create new Editables. 2639 */ 2640 public final void setEditableFactory(Editable.Factory factory) { 2641 mEditableFactory = factory; 2642 setText(mText); 2643 } 2644 2645 /** 2646 * Sets the Factory used to create new Spannables. 2647 */ 2648 public final void setSpannableFactory(Spannable.Factory factory) { 2649 mSpannableFactory = factory; 2650 setText(mText); 2651 } 2652 2653 /** 2654 * Sets the string value of the TextView. TextView <em>does not</em> accept 2655 * HTML-like formatting, which you can do with text strings in XML resource files. 2656 * To style your strings, attach android.text.style.* objects to a 2657 * {@link android.text.SpannableString SpannableString}, or see the 2658 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 2659 * Available Resource Types</a> documentation for an example of setting 2660 * formatted text in the XML resource file. 2661 * 2662 * @attr ref android.R.styleable#TextView_text 2663 */ 2664 @android.view.RemotableViewMethod 2665 public final void setText(CharSequence text) { 2666 setText(text, mBufferType); 2667 } 2668 2669 /** 2670 * Like {@link #setText(CharSequence)}, 2671 * except that the cursor position (if any) is retained in the new text. 2672 * 2673 * @param text The new text to place in the text view. 2674 * 2675 * @see #setText(CharSequence) 2676 */ 2677 @android.view.RemotableViewMethod 2678 public final void setTextKeepState(CharSequence text) { 2679 setTextKeepState(text, mBufferType); 2680 } 2681 2682 /** 2683 * Sets the text that this TextView is to display (see 2684 * {@link #setText(CharSequence)}) and also sets whether it is stored 2685 * in a styleable/spannable buffer and whether it is editable. 2686 * 2687 * @attr ref android.R.styleable#TextView_text 2688 * @attr ref android.R.styleable#TextView_bufferType 2689 */ 2690 public void setText(CharSequence text, BufferType type) { 2691 setText(text, type, true, 0); 2692 2693 if (mCharWrapper != null) { 2694 mCharWrapper.mChars = null; 2695 } 2696 } 2697 2698 private void setText(CharSequence text, BufferType type, 2699 boolean notifyBefore, int oldlen) { 2700 if (text == null) { 2701 text = ""; 2702 } 2703 2704 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 2705 2706 if (text instanceof Spanned && 2707 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 2708 setHorizontalFadingEdgeEnabled(true); 2709 setEllipsize(TextUtils.TruncateAt.MARQUEE); 2710 } 2711 2712 int n = mFilters.length; 2713 for (int i = 0; i < n; i++) { 2714 CharSequence out = mFilters[i].filter(text, 0, text.length(), 2715 EMPTY_SPANNED, 0, 0); 2716 if (out != null) { 2717 text = out; 2718 } 2719 } 2720 2721 if (notifyBefore) { 2722 if (mText != null) { 2723 oldlen = mText.length(); 2724 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 2725 } else { 2726 sendBeforeTextChanged("", 0, 0, text.length()); 2727 } 2728 } 2729 2730 boolean needEditableForNotification = false; 2731 2732 if (mListeners != null && mListeners.size() != 0) { 2733 needEditableForNotification = true; 2734 } 2735 2736 if (type == BufferType.EDITABLE || mInput != null || 2737 needEditableForNotification) { 2738 Editable t = mEditableFactory.newEditable(text); 2739 text = t; 2740 setFilters(t, mFilters); 2741 InputMethodManager imm = InputMethodManager.peekInstance(); 2742 if (imm != null) imm.restartInput(this); 2743 } else if (type == BufferType.SPANNABLE || mMovement != null) { 2744 text = mSpannableFactory.newSpannable(text); 2745 } else if (!(text instanceof CharWrapper)) { 2746 text = TextUtils.stringOrSpannedString(text); 2747 } 2748 2749 if (mAutoLinkMask != 0) { 2750 Spannable s2; 2751 2752 if (type == BufferType.EDITABLE || text instanceof Spannable) { 2753 s2 = (Spannable) text; 2754 } else { 2755 s2 = mSpannableFactory.newSpannable(text); 2756 } 2757 2758 if (Linkify.addLinks(s2, mAutoLinkMask)) { 2759 text = s2; 2760 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 2761 2762 /* 2763 * We must go ahead and set the text before changing the 2764 * movement method, because setMovementMethod() may call 2765 * setText() again to try to upgrade the buffer type. 2766 */ 2767 mText = text; 2768 2769 // Do not change the movement method for text that support text selection as it 2770 // would prevent an arbitrary cursor displacement. 2771 final boolean hasTextSelection = this instanceof EditText || mTextIsSelectable; 2772 if (mLinksClickable && !hasTextSelection) { 2773 setMovementMethod(LinkMovementMethod.getInstance()); 2774 } 2775 } 2776 } 2777 2778 mBufferType = type; 2779 mText = text; 2780 2781 if (mTransformation == null) 2782 mTransformed = text; 2783 else 2784 mTransformed = mTransformation.getTransformation(text, this); 2785 2786 final int textLength = text.length(); 2787 2788 if (text instanceof Spannable) { 2789 Spannable sp = (Spannable) text; 2790 2791 // Remove any ChangeWatchers that might have come 2792 // from other TextViews. 2793 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 2794 final int count = watchers.length; 2795 for (int i = 0; i < count; i++) 2796 sp.removeSpan(watchers[i]); 2797 2798 if (mChangeWatcher == null) 2799 mChangeWatcher = new ChangeWatcher(); 2800 2801 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 2802 (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 2803 2804 if (mInput != null) { 2805 sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2806 } 2807 2808 if (mTransformation != null) { 2809 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2810 2811 } 2812 2813 if (mMovement != null) { 2814 mMovement.initialize(this, (Spannable) text); 2815 2816 /* 2817 * Initializing the movement method will have set the 2818 * selection, so reset mSelectionMoved to keep that from 2819 * interfering with the normal on-focus selection-setting. 2820 */ 2821 mSelectionMoved = false; 2822 } 2823 } 2824 2825 if (mLayout != null) { 2826 checkForRelayout(); 2827 } 2828 2829 sendOnTextChanged(text, 0, oldlen, textLength); 2830 onTextChanged(text, 0, oldlen, textLength); 2831 2832 if (needEditableForNotification) { 2833 sendAfterTextChanged((Editable) text); 2834 } 2835 2836 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 2837 prepareCursorControllers(); 2838 } 2839 2840 /** 2841 * Sets the TextView to display the specified slice of the specified 2842 * char array. You must promise that you will not change the contents 2843 * of the array except for right before another call to setText(), 2844 * since the TextView has no way to know that the text 2845 * has changed and that it needs to invalidate and re-layout. 2846 */ 2847 public final void setText(char[] text, int start, int len) { 2848 int oldlen = 0; 2849 2850 if (start < 0 || len < 0 || start + len > text.length) { 2851 throw new IndexOutOfBoundsException(start + ", " + len); 2852 } 2853 2854 /* 2855 * We must do the before-notification here ourselves because if 2856 * the old text is a CharWrapper we destroy it before calling 2857 * into the normal path. 2858 */ 2859 if (mText != null) { 2860 oldlen = mText.length(); 2861 sendBeforeTextChanged(mText, 0, oldlen, len); 2862 } else { 2863 sendBeforeTextChanged("", 0, 0, len); 2864 } 2865 2866 if (mCharWrapper == null) { 2867 mCharWrapper = new CharWrapper(text, start, len); 2868 } else { 2869 mCharWrapper.set(text, start, len); 2870 } 2871 2872 setText(mCharWrapper, mBufferType, false, oldlen); 2873 } 2874 2875 private static class CharWrapper 2876 implements CharSequence, GetChars, GraphicsOperations { 2877 private char[] mChars; 2878 private int mStart, mLength; 2879 2880 public CharWrapper(char[] chars, int start, int len) { 2881 mChars = chars; 2882 mStart = start; 2883 mLength = len; 2884 } 2885 2886 /* package */ void set(char[] chars, int start, int len) { 2887 mChars = chars; 2888 mStart = start; 2889 mLength = len; 2890 } 2891 2892 public int length() { 2893 return mLength; 2894 } 2895 2896 public char charAt(int off) { 2897 return mChars[off + mStart]; 2898 } 2899 2900 @Override 2901 public String toString() { 2902 return new String(mChars, mStart, mLength); 2903 } 2904 2905 public CharSequence subSequence(int start, int end) { 2906 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2907 throw new IndexOutOfBoundsException(start + ", " + end); 2908 } 2909 2910 return new String(mChars, start + mStart, end - start); 2911 } 2912 2913 public void getChars(int start, int end, char[] buf, int off) { 2914 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2915 throw new IndexOutOfBoundsException(start + ", " + end); 2916 } 2917 2918 System.arraycopy(mChars, start + mStart, buf, off, end - start); 2919 } 2920 2921 public void drawText(Canvas c, int start, int end, 2922 float x, float y, Paint p) { 2923 c.drawText(mChars, start + mStart, end - start, x, y, p); 2924 } 2925 2926 public void drawTextRun(Canvas c, int start, int end, 2927 int contextStart, int contextEnd, float x, float y, int flags, Paint p) { 2928 int count = end - start; 2929 int contextCount = contextEnd - contextStart; 2930 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 2931 contextCount, x, y, flags, p); 2932 } 2933 2934 public float measureText(int start, int end, Paint p) { 2935 return p.measureText(mChars, start + mStart, end - start); 2936 } 2937 2938 public int getTextWidths(int start, int end, float[] widths, Paint p) { 2939 return p.getTextWidths(mChars, start + mStart, end - start, widths); 2940 } 2941 2942 public float getTextRunAdvances(int start, int end, int contextStart, 2943 int contextEnd, int flags, float[] advances, int advancesIndex, 2944 Paint p) { 2945 int count = end - start; 2946 int contextCount = contextEnd - contextStart; 2947 return p.getTextRunAdvances(mChars, start + mStart, count, 2948 contextStart + mStart, contextCount, flags, advances, 2949 advancesIndex); 2950 } 2951 2952 public int getTextRunCursor(int contextStart, int contextEnd, int flags, 2953 int offset, int cursorOpt, Paint p) { 2954 int contextCount = contextEnd - contextStart; 2955 return p.getTextRunCursor(mChars, contextStart + mStart, 2956 contextCount, flags, offset + mStart, cursorOpt); 2957 } 2958 } 2959 2960 /** 2961 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 2962 * except that the cursor position (if any) is retained in the new text. 2963 * 2964 * @see #setText(CharSequence, android.widget.TextView.BufferType) 2965 */ 2966 public final void setTextKeepState(CharSequence text, BufferType type) { 2967 int start = getSelectionStart(); 2968 int end = getSelectionEnd(); 2969 int len = text.length(); 2970 2971 setText(text, type); 2972 2973 if (start >= 0 || end >= 0) { 2974 if (mText instanceof Spannable) { 2975 Selection.setSelection((Spannable) mText, 2976 Math.max(0, Math.min(start, len)), 2977 Math.max(0, Math.min(end, len))); 2978 } 2979 } 2980 } 2981 2982 @android.view.RemotableViewMethod 2983 public final void setText(int resid) { 2984 setText(getContext().getResources().getText(resid)); 2985 } 2986 2987 public final void setText(int resid, BufferType type) { 2988 setText(getContext().getResources().getText(resid), type); 2989 } 2990 2991 /** 2992 * Sets the text to be displayed when the text of the TextView is empty. 2993 * Null means to use the normal empty text. The hint does not currently 2994 * participate in determining the size of the view. 2995 * 2996 * @attr ref android.R.styleable#TextView_hint 2997 */ 2998 @android.view.RemotableViewMethod 2999 public final void setHint(CharSequence hint) { 3000 mHint = TextUtils.stringOrSpannedString(hint); 3001 3002 if (mLayout != null) { 3003 checkForRelayout(); 3004 } 3005 3006 if (mText.length() == 0) { 3007 invalidate(); 3008 } 3009 } 3010 3011 /** 3012 * Sets the text to be displayed when the text of the TextView is empty, 3013 * from a resource. 3014 * 3015 * @attr ref android.R.styleable#TextView_hint 3016 */ 3017 @android.view.RemotableViewMethod 3018 public final void setHint(int resid) { 3019 setHint(getContext().getResources().getText(resid)); 3020 } 3021 3022 /** 3023 * Returns the hint that is displayed when the text of the TextView 3024 * is empty. 3025 * 3026 * @attr ref android.R.styleable#TextView_hint 3027 */ 3028 @ViewDebug.CapturedViewProperty 3029 public CharSequence getHint() { 3030 return mHint; 3031 } 3032 3033 private boolean isMultilineInputType(int type) { 3034 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 3035 (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 3036 } 3037 3038 /** 3039 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 3040 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 3041 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 3042 * then a soft keyboard will not be displayed for this text view. 3043 * 3044 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 3045 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 3046 * type. 3047 * 3048 * @see #getInputType() 3049 * @see #setRawInputType(int) 3050 * @see android.text.InputType 3051 * @attr ref android.R.styleable#TextView_inputType 3052 */ 3053 public void setInputType(int type) { 3054 final boolean wasPassword = isPasswordInputType(mInputType); 3055 final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType); 3056 setInputType(type, false); 3057 final boolean isPassword = isPasswordInputType(type); 3058 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 3059 boolean forceUpdate = false; 3060 if (isPassword) { 3061 setTransformationMethod(PasswordTransformationMethod.getInstance()); 3062 setTypefaceByIndex(MONOSPACE, 0); 3063 } else if (isVisiblePassword) { 3064 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3065 forceUpdate = true; 3066 } 3067 setTypefaceByIndex(MONOSPACE, 0); 3068 } else if (wasPassword || wasVisiblePassword) { 3069 // not in password mode, clean up typeface and transformation 3070 setTypefaceByIndex(-1, -1); 3071 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3072 forceUpdate = true; 3073 } 3074 } 3075 3076 boolean singleLine = !isMultilineInputType(type); 3077 3078 // We need to update the single line mode if it has changed or we 3079 // were previously in password mode. 3080 if (mSingleLine != singleLine || forceUpdate) { 3081 // Change single line mode, but only change the transformation if 3082 // we are not in password mode. 3083 applySingleLine(singleLine, !isPassword, true); 3084 } 3085 3086 InputMethodManager imm = InputMethodManager.peekInstance(); 3087 if (imm != null) imm.restartInput(this); 3088 } 3089 3090 /** 3091 * It would be better to rely on the input type for everything. A password inputType should have 3092 * a password transformation. We should hence use isPasswordInputType instead of this method. 3093 * 3094 * We should: 3095 * - Call setInputType in setKeyListener instead of changing the input type directly (which 3096 * would install the correct transformation). 3097 * - Refuse the installation of a non-password transformation in setTransformation if the input 3098 * type is password. 3099 * 3100 * However, this is like this for legacy reasons and we cannot break existing apps. This method 3101 * is useful since it matches what the user can see (obfuscated text or not). 3102 * 3103 * @return true if the current transformation method is of the password type. 3104 */ 3105 private boolean hasPasswordTransformationMethod() { 3106 return mTransformation instanceof PasswordTransformationMethod; 3107 } 3108 3109 private boolean isPasswordInputType(int inputType) { 3110 final int variation = 3111 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3112 return variation 3113 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 3114 || variation 3115 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 3116 || variation 3117 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 3118 } 3119 3120 private boolean isVisiblePasswordInputType(int inputType) { 3121 final int variation = 3122 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3123 return variation 3124 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 3125 } 3126 3127 /** 3128 * Directly change the content type integer of the text view, without 3129 * modifying any other state. 3130 * @see #setInputType(int) 3131 * @see android.text.InputType 3132 * @attr ref android.R.styleable#TextView_inputType 3133 */ 3134 public void setRawInputType(int type) { 3135 mInputType = type; 3136 } 3137 3138 private void setInputType(int type, boolean direct) { 3139 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 3140 KeyListener input; 3141 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 3142 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 3143 TextKeyListener.Capitalize cap; 3144 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 3145 cap = TextKeyListener.Capitalize.CHARACTERS; 3146 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 3147 cap = TextKeyListener.Capitalize.WORDS; 3148 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 3149 cap = TextKeyListener.Capitalize.SENTENCES; 3150 } else { 3151 cap = TextKeyListener.Capitalize.NONE; 3152 } 3153 input = TextKeyListener.getInstance(autotext, cap); 3154 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 3155 input = DigitsKeyListener.getInstance( 3156 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 3157 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 3158 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 3159 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 3160 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 3161 input = DateKeyListener.getInstance(); 3162 break; 3163 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 3164 input = TimeKeyListener.getInstance(); 3165 break; 3166 default: 3167 input = DateTimeKeyListener.getInstance(); 3168 break; 3169 } 3170 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 3171 input = DialerKeyListener.getInstance(); 3172 } else { 3173 input = TextKeyListener.getInstance(); 3174 } 3175 setRawInputType(type); 3176 if (direct) mInput = input; 3177 else { 3178 setKeyListenerOnly(input); 3179 } 3180 } 3181 3182 /** 3183 * Get the type of the content. 3184 * 3185 * @see #setInputType(int) 3186 * @see android.text.InputType 3187 */ 3188 public int getInputType() { 3189 return mInputType; 3190 } 3191 3192 /** 3193 * Change the editor type integer associated with the text view, which 3194 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3195 * has focus. 3196 * @see #getImeOptions 3197 * @see android.view.inputmethod.EditorInfo 3198 * @attr ref android.R.styleable#TextView_imeOptions 3199 */ 3200 public void setImeOptions(int imeOptions) { 3201 if (mInputContentType == null) { 3202 mInputContentType = new InputContentType(); 3203 } 3204 mInputContentType.imeOptions = imeOptions; 3205 } 3206 3207 /** 3208 * Get the type of the IME editor. 3209 * 3210 * @see #setImeOptions(int) 3211 * @see android.view.inputmethod.EditorInfo 3212 */ 3213 public int getImeOptions() { 3214 return mInputContentType != null 3215 ? mInputContentType.imeOptions : EditorInfo.IME_NULL; 3216 } 3217 3218 /** 3219 * Change the custom IME action associated with the text view, which 3220 * will be reported to an IME with {@link EditorInfo#actionLabel} 3221 * and {@link EditorInfo#actionId} when it has focus. 3222 * @see #getImeActionLabel 3223 * @see #getImeActionId 3224 * @see android.view.inputmethod.EditorInfo 3225 * @attr ref android.R.styleable#TextView_imeActionLabel 3226 * @attr ref android.R.styleable#TextView_imeActionId 3227 */ 3228 public void setImeActionLabel(CharSequence label, int actionId) { 3229 if (mInputContentType == null) { 3230 mInputContentType = new InputContentType(); 3231 } 3232 mInputContentType.imeActionLabel = label; 3233 mInputContentType.imeActionId = actionId; 3234 } 3235 3236 /** 3237 * Get the IME action label previous set with {@link #setImeActionLabel}. 3238 * 3239 * @see #setImeActionLabel 3240 * @see android.view.inputmethod.EditorInfo 3241 */ 3242 public CharSequence getImeActionLabel() { 3243 return mInputContentType != null 3244 ? mInputContentType.imeActionLabel : null; 3245 } 3246 3247 /** 3248 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3249 * 3250 * @see #setImeActionLabel 3251 * @see android.view.inputmethod.EditorInfo 3252 */ 3253 public int getImeActionId() { 3254 return mInputContentType != null 3255 ? mInputContentType.imeActionId : 0; 3256 } 3257 3258 /** 3259 * Set a special listener to be called when an action is performed 3260 * on the text view. This will be called when the enter key is pressed, 3261 * or when an action supplied to the IME is selected by the user. Setting 3262 * this means that the normal hard key event will not insert a newline 3263 * into the text view, even if it is multi-line; holding down the ALT 3264 * modifier will, however, allow the user to insert a newline character. 3265 */ 3266 public void setOnEditorActionListener(OnEditorActionListener l) { 3267 if (mInputContentType == null) { 3268 mInputContentType = new InputContentType(); 3269 } 3270 mInputContentType.onEditorActionListener = l; 3271 } 3272 3273 /** 3274 * Called when an attached input method calls 3275 * {@link InputConnection#performEditorAction(int) 3276 * InputConnection.performEditorAction()} 3277 * for this text view. The default implementation will call your action 3278 * listener supplied to {@link #setOnEditorActionListener}, or perform 3279 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3280 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 3281 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 3282 * EditorInfo.IME_ACTION_DONE}. 3283 * 3284 * <p>For backwards compatibility, if no IME options have been set and the 3285 * text view would not normally advance focus on enter, then 3286 * the NEXT and DONE actions received here will be turned into an enter 3287 * key down/up pair to go through the normal key handling. 3288 * 3289 * @param actionCode The code of the action being performed. 3290 * 3291 * @see #setOnEditorActionListener 3292 */ 3293 public void onEditorAction(int actionCode) { 3294 final InputContentType ict = mInputContentType; 3295 if (ict != null) { 3296 if (ict.onEditorActionListener != null) { 3297 if (ict.onEditorActionListener.onEditorAction(this, 3298 actionCode, null)) { 3299 return; 3300 } 3301 } 3302 3303 // This is the handling for some default action. 3304 // Note that for backwards compatibility we don't do this 3305 // default handling if explicit ime options have not been given, 3306 // instead turning this into the normal enter key codes that an 3307 // app may be expecting. 3308 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3309 View v = focusSearch(FOCUS_DOWN); 3310 if (v != null) { 3311 if (!v.requestFocus(FOCUS_DOWN)) { 3312 throw new IllegalStateException("focus search returned a view " + 3313 "that wasn't able to take focus!"); 3314 } 3315 } 3316 return; 3317 3318 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 3319 View v = focusSearch(FOCUS_UP); 3320 if (v != null) { 3321 if (!v.requestFocus(FOCUS_UP)) { 3322 throw new IllegalStateException("focus search returned a view " + 3323 "that wasn't able to take focus!"); 3324 } 3325 } 3326 return; 3327 3328 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3329 InputMethodManager imm = InputMethodManager.peekInstance(); 3330 if (imm != null && imm.isActive(this)) { 3331 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3332 } 3333 return; 3334 } 3335 } 3336 3337 Handler h = getHandler(); 3338 if (h != null) { 3339 long eventTime = SystemClock.uptimeMillis(); 3340 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3341 new KeyEvent(eventTime, eventTime, 3342 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 3343 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3344 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3345 | KeyEvent.FLAG_EDITOR_ACTION))); 3346 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3347 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3348 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 3349 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3350 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3351 | KeyEvent.FLAG_EDITOR_ACTION))); 3352 } 3353 } 3354 3355 /** 3356 * Set the private content type of the text, which is the 3357 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3358 * field that will be filled in when creating an input connection. 3359 * 3360 * @see #getPrivateImeOptions() 3361 * @see EditorInfo#privateImeOptions 3362 * @attr ref android.R.styleable#TextView_privateImeOptions 3363 */ 3364 public void setPrivateImeOptions(String type) { 3365 if (mInputContentType == null) mInputContentType = new InputContentType(); 3366 mInputContentType.privateImeOptions = type; 3367 } 3368 3369 /** 3370 * Get the private type of the content. 3371 * 3372 * @see #setPrivateImeOptions(String) 3373 * @see EditorInfo#privateImeOptions 3374 */ 3375 public String getPrivateImeOptions() { 3376 return mInputContentType != null 3377 ? mInputContentType.privateImeOptions : null; 3378 } 3379 3380 /** 3381 * Set the extra input data of the text, which is the 3382 * {@link EditorInfo#extras TextBoxAttribute.extras} 3383 * Bundle that will be filled in when creating an input connection. The 3384 * given integer is the resource ID of an XML resource holding an 3385 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3386 * 3387 * @see #getInputExtras(boolean) 3388 * @see EditorInfo#extras 3389 * @attr ref android.R.styleable#TextView_editorExtras 3390 */ 3391 public void setInputExtras(int xmlResId) 3392 throws XmlPullParserException, IOException { 3393 XmlResourceParser parser = getResources().getXml(xmlResId); 3394 if (mInputContentType == null) mInputContentType = new InputContentType(); 3395 mInputContentType.extras = new Bundle(); 3396 getResources().parseBundleExtras(parser, mInputContentType.extras); 3397 } 3398 3399 /** 3400 * Retrieve the input extras currently associated with the text view, which 3401 * can be viewed as well as modified. 3402 * 3403 * @param create If true, the extras will be created if they don't already 3404 * exist. Otherwise, null will be returned if none have been created. 3405 * @see #setInputExtras(int) 3406 * @see EditorInfo#extras 3407 * @attr ref android.R.styleable#TextView_editorExtras 3408 */ 3409 public Bundle getInputExtras(boolean create) { 3410 if (mInputContentType == null) { 3411 if (!create) return null; 3412 mInputContentType = new InputContentType(); 3413 } 3414 if (mInputContentType.extras == null) { 3415 if (!create) return null; 3416 mInputContentType.extras = new Bundle(); 3417 } 3418 return mInputContentType.extras; 3419 } 3420 3421 /** 3422 * Returns the error message that was set to be displayed with 3423 * {@link #setError}, or <code>null</code> if no error was set 3424 * or if it the error was cleared by the widget after user input. 3425 */ 3426 public CharSequence getError() { 3427 return mError; 3428 } 3429 3430 /** 3431 * Sets the right-hand compound drawable of the TextView to the "error" 3432 * icon and sets an error message that will be displayed in a popup when 3433 * the TextView has focus. The icon and error message will be reset to 3434 * null when any key events cause changes to the TextView's text. If the 3435 * <code>error</code> is <code>null</code>, the error message and icon 3436 * will be cleared. 3437 */ 3438 @android.view.RemotableViewMethod 3439 public void setError(CharSequence error) { 3440 if (error == null) { 3441 setError(null, null); 3442 } else { 3443 Drawable dr = getContext().getResources(). 3444 getDrawable(com.android.internal.R.drawable.indicator_input_error); 3445 3446 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3447 setError(error, dr); 3448 } 3449 } 3450 3451 /** 3452 * Sets the right-hand compound drawable of the TextView to the specified 3453 * icon and sets an error message that will be displayed in a popup when 3454 * the TextView has focus. The icon and error message will be reset to 3455 * null when any key events cause changes to the TextView's text. The 3456 * drawable must already have had {@link Drawable#setBounds} set on it. 3457 * If the <code>error</code> is <code>null</code>, the error message will 3458 * be cleared (and you should provide a <code>null</code> icon as well). 3459 */ 3460 public void setError(CharSequence error, Drawable icon) { 3461 error = TextUtils.stringOrSpannedString(error); 3462 3463 mError = error; 3464 mErrorWasChanged = true; 3465 final Drawables dr = mDrawables; 3466 if (dr != null) { 3467 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, icon, dr.mDrawableBottom); 3468 } else { 3469 setCompoundDrawables(null, null, icon, null); 3470 } 3471 3472 if (error == null) { 3473 if (mPopup != null) { 3474 if (mPopup.isShowing()) { 3475 mPopup.dismiss(); 3476 } 3477 3478 mPopup = null; 3479 } 3480 } else { 3481 if (isFocused()) { 3482 showError(); 3483 } 3484 } 3485 } 3486 3487 private void showError() { 3488 if (getWindowToken() == null) { 3489 mShowErrorAfterAttach = true; 3490 return; 3491 } 3492 3493 if (mPopup == null) { 3494 LayoutInflater inflater = LayoutInflater.from(getContext()); 3495 final TextView err = (TextView) inflater.inflate( 3496 com.android.internal.R.layout.textview_hint, null); 3497 3498 final float scale = getResources().getDisplayMetrics().density; 3499 mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), (int) (50 * scale + 0.5f)); 3500 mPopup.setFocusable(false); 3501 // The user is entering text, so the input method is needed. We 3502 // don't want the popup to be displayed on top of it. 3503 mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 3504 } 3505 3506 TextView tv = (TextView) mPopup.getContentView(); 3507 chooseSize(mPopup, mError, tv); 3508 tv.setText(mError); 3509 3510 mPopup.showAsDropDown(this, getErrorX(), getErrorY()); 3511 mPopup.fixDirection(mPopup.isAboveAnchor()); 3512 } 3513 3514 private static class ErrorPopup extends PopupWindow { 3515 private boolean mAbove = false; 3516 private final TextView mView; 3517 private int mPopupInlineErrorBackgroundId = 0; 3518 private int mPopupInlineErrorAboveBackgroundId = 0; 3519 3520 ErrorPopup(TextView v, int width, int height) { 3521 super(v, width, height); 3522 mView = v; 3523 // Make sure the TextView has a background set as it will be used the first time it is 3524 // shown and positionned. Initialized with below background, which should have 3525 // dimensions identical to the above version for this to work (and is more likely). 3526 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3527 com.android.internal.R.styleable.Theme_errorMessageBackground); 3528 mView.setBackgroundResource(mPopupInlineErrorBackgroundId); 3529 } 3530 3531 void fixDirection(boolean above) { 3532 mAbove = above; 3533 3534 if (above) { 3535 mPopupInlineErrorAboveBackgroundId = 3536 getResourceId(mPopupInlineErrorAboveBackgroundId, 3537 com.android.internal.R.styleable.Theme_errorMessageAboveBackground); 3538 } else { 3539 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3540 com.android.internal.R.styleable.Theme_errorMessageBackground); 3541 } 3542 3543 mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId : 3544 mPopupInlineErrorBackgroundId); 3545 } 3546 3547 private int getResourceId(int currentId, int index) { 3548 if (currentId == 0) { 3549 TypedArray styledAttributes = mView.getContext().obtainStyledAttributes( 3550 R.styleable.Theme); 3551 currentId = styledAttributes.getResourceId(index, 0); 3552 styledAttributes.recycle(); 3553 } 3554 return currentId; 3555 } 3556 3557 @Override 3558 public void update(int x, int y, int w, int h, boolean force) { 3559 super.update(x, y, w, h, force); 3560 3561 boolean above = isAboveAnchor(); 3562 if (above != mAbove) { 3563 fixDirection(above); 3564 } 3565 } 3566 } 3567 3568 /** 3569 * Returns the Y offset to make the pointy top of the error point 3570 * at the middle of the error icon. 3571 */ 3572 private int getErrorX() { 3573 /* 3574 * The "25" is the distance between the point and the right edge 3575 * of the background 3576 */ 3577 final float scale = getResources().getDisplayMetrics().density; 3578 3579 final Drawables dr = mDrawables; 3580 return getWidth() - mPopup.getWidth() - getPaddingRight() - 3581 (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 3582 } 3583 3584 /** 3585 * Returns the Y offset to make the pointy top of the error point 3586 * at the bottom of the error icon. 3587 */ 3588 private int getErrorY() { 3589 /* 3590 * Compound, not extended, because the icon is not clipped 3591 * if the text height is smaller. 3592 */ 3593 final int compoundPaddingTop = getCompoundPaddingTop(); 3594 int vspace = mBottom - mTop - getCompoundPaddingBottom() - compoundPaddingTop; 3595 3596 final Drawables dr = mDrawables; 3597 int icontop = compoundPaddingTop + 3598 (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 3599 3600 /* 3601 * The "2" is the distance between the point and the top edge 3602 * of the background. 3603 */ 3604 final float scale = getResources().getDisplayMetrics().density; 3605 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) - getHeight() - 3606 (int) (2 * scale + 0.5f); 3607 } 3608 3609 private void hideError() { 3610 if (mPopup != null) { 3611 if (mPopup.isShowing()) { 3612 mPopup.dismiss(); 3613 } 3614 } 3615 3616 mShowErrorAfterAttach = false; 3617 } 3618 3619 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 3620 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 3621 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 3622 3623 /* 3624 * Figure out how big the text would be if we laid it out to the 3625 * full width of this view minus the border. 3626 */ 3627 int cap = getWidth() - wid; 3628 if (cap < 0) { 3629 cap = 200; // We must not be measured yet -- setFrame() will fix it. 3630 } 3631 3632 Layout l = new StaticLayout(text, tv.getPaint(), cap, 3633 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 3634 float max = 0; 3635 for (int i = 0; i < l.getLineCount(); i++) { 3636 max = Math.max(max, l.getLineWidth(i)); 3637 } 3638 3639 /* 3640 * Now set the popup size to be big enough for the text plus the border. 3641 */ 3642 pop.setWidth(wid + (int) Math.ceil(max)); 3643 pop.setHeight(ht + l.getHeight()); 3644 } 3645 3646 3647 @Override 3648 protected boolean setFrame(int l, int t, int r, int b) { 3649 boolean result = super.setFrame(l, t, r, b); 3650 3651 if (mPopup != null) { 3652 TextView tv = (TextView) mPopup.getContentView(); 3653 chooseSize(mPopup, mError, tv); 3654 mPopup.update(this, getErrorX(), getErrorY(), 3655 mPopup.getWidth(), mPopup.getHeight()); 3656 } 3657 3658 restartMarqueeIfNeeded(); 3659 3660 return result; 3661 } 3662 3663 private void restartMarqueeIfNeeded() { 3664 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 3665 mRestartMarquee = false; 3666 startMarquee(); 3667 } 3668 } 3669 3670 /** 3671 * Sets the list of input filters that will be used if the buffer is 3672 * Editable. Has no effect otherwise. 3673 * 3674 * @attr ref android.R.styleable#TextView_maxLength 3675 */ 3676 public void setFilters(InputFilter[] filters) { 3677 if (filters == null) { 3678 throw new IllegalArgumentException(); 3679 } 3680 3681 mFilters = filters; 3682 3683 if (mText instanceof Editable) { 3684 setFilters((Editable) mText, filters); 3685 } 3686 } 3687 3688 /** 3689 * Sets the list of input filters on the specified Editable, 3690 * and includes mInput in the list if it is an InputFilter. 3691 */ 3692 private void setFilters(Editable e, InputFilter[] filters) { 3693 if (mInput instanceof InputFilter) { 3694 InputFilter[] nf = new InputFilter[filters.length + 1]; 3695 3696 System.arraycopy(filters, 0, nf, 0, filters.length); 3697 nf[filters.length] = (InputFilter) mInput; 3698 3699 e.setFilters(nf); 3700 } else { 3701 e.setFilters(filters); 3702 } 3703 } 3704 3705 /** 3706 * Returns the current list of input filters. 3707 */ 3708 public InputFilter[] getFilters() { 3709 return mFilters; 3710 } 3711 3712 ///////////////////////////////////////////////////////////////////////// 3713 3714 private int getVerticalOffset(boolean forceNormal) { 3715 int voffset = 0; 3716 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3717 3718 Layout l = mLayout; 3719 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3720 l = mHintLayout; 3721 } 3722 3723 if (gravity != Gravity.TOP) { 3724 int boxht; 3725 3726 if (l == mHintLayout) { 3727 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3728 getCompoundPaddingBottom(); 3729 } else { 3730 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3731 getExtendedPaddingBottom(); 3732 } 3733 int textht = l.getHeight(); 3734 3735 if (textht < boxht) { 3736 if (gravity == Gravity.BOTTOM) 3737 voffset = boxht - textht; 3738 else // (gravity == Gravity.CENTER_VERTICAL) 3739 voffset = (boxht - textht) >> 1; 3740 } 3741 } 3742 return voffset; 3743 } 3744 3745 private int getBottomVerticalOffset(boolean forceNormal) { 3746 int voffset = 0; 3747 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3748 3749 Layout l = mLayout; 3750 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3751 l = mHintLayout; 3752 } 3753 3754 if (gravity != Gravity.BOTTOM) { 3755 int boxht; 3756 3757 if (l == mHintLayout) { 3758 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3759 getCompoundPaddingBottom(); 3760 } else { 3761 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3762 getExtendedPaddingBottom(); 3763 } 3764 int textht = l.getHeight(); 3765 3766 if (textht < boxht) { 3767 if (gravity == Gravity.TOP) 3768 voffset = boxht - textht; 3769 else // (gravity == Gravity.CENTER_VERTICAL) 3770 voffset = (boxht - textht) >> 1; 3771 } 3772 } 3773 return voffset; 3774 } 3775 3776 private void invalidateCursorPath() { 3777 if (mHighlightPathBogus) { 3778 invalidateCursor(); 3779 } else { 3780 final int horizontalPadding = getCompoundPaddingLeft(); 3781 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 3782 3783 if (mCursorCount == 0) { 3784 synchronized (sTempRect) { 3785 /* 3786 * The reason for this concern about the thickness of the 3787 * cursor and doing the floor/ceil on the coordinates is that 3788 * some EditTexts (notably textfields in the Browser) have 3789 * anti-aliased text where not all the characters are 3790 * necessarily at integer-multiple locations. This should 3791 * make sure the entire cursor gets invalidated instead of 3792 * sometimes missing half a pixel. 3793 */ 3794 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 3795 if (thick < 1.0f) { 3796 thick = 1.0f; 3797 } 3798 3799 thick /= 2.0f; 3800 3801 mHighlightPath.computeBounds(sTempRect, false); 3802 3803 invalidate((int) FloatMath.floor(horizontalPadding + sTempRect.left - thick), 3804 (int) FloatMath.floor(verticalPadding + sTempRect.top - thick), 3805 (int) FloatMath.ceil(horizontalPadding + sTempRect.right + thick), 3806 (int) FloatMath.ceil(verticalPadding + sTempRect.bottom + thick)); 3807 } 3808 } else { 3809 for (int i = 0; i < mCursorCount; i++) { 3810 Rect bounds = mCursorDrawable[i].getBounds(); 3811 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 3812 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 3813 } 3814 } 3815 } 3816 } 3817 3818 private void invalidateCursor() { 3819 int where = getSelectionEnd(); 3820 3821 invalidateCursor(where, where, where); 3822 } 3823 3824 private void invalidateCursor(int a, int b, int c) { 3825 if (mLayout == null) { 3826 invalidate(); 3827 } else { 3828 if (a >= 0 || b >= 0 || c >= 0) { 3829 int first = Math.min(Math.min(a, b), c); 3830 int last = Math.max(Math.max(a, b), c); 3831 3832 int line = mLayout.getLineForOffset(first); 3833 int top = mLayout.getLineTop(line); 3834 3835 // This is ridiculous, but the descent from the line above 3836 // can hang down into the line we really want to redraw, 3837 // so we have to invalidate part of the line above to make 3838 // sure everything that needs to be redrawn really is. 3839 // (But not the whole line above, because that would cause 3840 // the same problem with the descenders on the line above it!) 3841 if (line > 0) { 3842 top -= mLayout.getLineDescent(line - 1); 3843 } 3844 3845 int line2; 3846 3847 if (first == last) 3848 line2 = line; 3849 else 3850 line2 = mLayout.getLineForOffset(last); 3851 3852 int bottom = mLayout.getLineTop(line2 + 1); 3853 3854 final int horizontalPadding = getCompoundPaddingLeft(); 3855 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 3856 3857 // If used, the cursor drawables can have an arbitrary dimension that can go beyond 3858 // the invalidated lines specified above. 3859 for (int i = 0; i < mCursorCount; i++) { 3860 Rect bounds = mCursorDrawable[i].getBounds(); 3861 top = Math.min(top, bounds.top); 3862 bottom = Math.max(bottom, bounds.bottom); 3863 // Horizontal bounds are already full width, no need to update 3864 } 3865 3866 invalidate(horizontalPadding + mScrollX, top + verticalPadding, 3867 horizontalPadding + mScrollX + getWidth() - 3868 getCompoundPaddingLeft() - getCompoundPaddingRight(), 3869 bottom + verticalPadding); 3870 } 3871 } 3872 } 3873 3874 private void registerForPreDraw() { 3875 final ViewTreeObserver observer = getViewTreeObserver(); 3876 if (observer == null) { 3877 return; 3878 } 3879 3880 if (mPreDrawState == PREDRAW_NOT_REGISTERED) { 3881 observer.addOnPreDrawListener(this); 3882 mPreDrawState = PREDRAW_PENDING; 3883 } else if (mPreDrawState == PREDRAW_DONE) { 3884 mPreDrawState = PREDRAW_PENDING; 3885 } 3886 3887 // else state is PREDRAW_PENDING, so keep waiting. 3888 } 3889 3890 /** 3891 * {@inheritDoc} 3892 */ 3893 public boolean onPreDraw() { 3894 if (mPreDrawState != PREDRAW_PENDING) { 3895 return true; 3896 } 3897 3898 if (mLayout == null) { 3899 assumeLayout(); 3900 } 3901 3902 boolean changed = false; 3903 3904 if (mMovement != null) { 3905 /* This code also provides auto-scrolling when a cursor is moved using a 3906 * CursorController (insertion point or selection limits). 3907 * For selection, ensure start or end is visible depending on controller's state. 3908 */ 3909 int curs = getSelectionEnd(); 3910 // Do not create the controller if it is not already created. 3911 if (mSelectionModifierCursorController != null && 3912 mSelectionModifierCursorController.isSelectionStartDragged()) { 3913 curs = getSelectionStart(); 3914 } 3915 3916 /* 3917 * TODO: This should really only keep the end in view if 3918 * it already was before the text changed. I'm not sure 3919 * of a good way to tell from here if it was. 3920 */ 3921 if (curs < 0 && 3922 (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 3923 curs = mText.length(); 3924 } 3925 3926 if (curs >= 0) { 3927 changed = bringPointIntoView(curs); 3928 } 3929 } else { 3930 changed = bringTextIntoView(); 3931 } 3932 3933 // This has to be checked here since: 3934 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 3935 // a screen rotation) since layout is not yet initialized at that point. 3936 if (mCreatedWithASelection) { 3937 startSelectionActionMode(); 3938 mCreatedWithASelection = false; 3939 } 3940 3941 // Phone specific code (there is no ExtractEditText on tablets). 3942 // ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can 3943 // not be set. Do the test here instead. 3944 if (this instanceof ExtractEditText && hasSelection()) { 3945 startSelectionActionMode(); 3946 } 3947 3948 mPreDrawState = PREDRAW_DONE; 3949 return !changed; 3950 } 3951 3952 @Override 3953 protected void onAttachedToWindow() { 3954 super.onAttachedToWindow(); 3955 3956 mTemporaryDetach = false; 3957 3958 if (mShowErrorAfterAttach) { 3959 showError(); 3960 mShowErrorAfterAttach = false; 3961 } 3962 3963 final ViewTreeObserver observer = getViewTreeObserver(); 3964 if (observer != null) { 3965 // No need to create the controller. 3966 // The get method will add the listener on controller creation. 3967 if (mInsertionPointCursorController != null) { 3968 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 3969 } 3970 if (mSelectionModifierCursorController != null) { 3971 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 3972 } 3973 } 3974 } 3975 3976 @Override 3977 protected void onDetachedFromWindow() { 3978 super.onDetachedFromWindow(); 3979 3980 final ViewTreeObserver observer = getViewTreeObserver(); 3981 if (observer != null) { 3982 if (mPreDrawState != PREDRAW_NOT_REGISTERED) { 3983 observer.removeOnPreDrawListener(this); 3984 mPreDrawState = PREDRAW_NOT_REGISTERED; 3985 } 3986 // No need to create the controller, as getXXController would. 3987 if (mInsertionPointCursorController != null) { 3988 observer.removeOnTouchModeChangeListener(mInsertionPointCursorController); 3989 } 3990 if (mSelectionModifierCursorController != null) { 3991 observer.removeOnTouchModeChangeListener(mSelectionModifierCursorController); 3992 } 3993 } 3994 3995 if (mError != null) { 3996 hideError(); 3997 } 3998 3999 if (mBlink != null) { 4000 mBlink.cancel(); 4001 } 4002 4003 if (mInsertionPointCursorController != null) { 4004 mInsertionPointCursorController.onDetached(); 4005 } 4006 4007 if (mSelectionModifierCursorController != null) { 4008 mSelectionModifierCursorController.onDetached(); 4009 } 4010 4011 hideControllers(); 4012 } 4013 4014 @Override 4015 protected boolean isPaddingOffsetRequired() { 4016 return mShadowRadius != 0 || mDrawables != null; 4017 } 4018 4019 @Override 4020 protected int getLeftPaddingOffset() { 4021 return getCompoundPaddingLeft() - mPaddingLeft + 4022 (int) Math.min(0, mShadowDx - mShadowRadius); 4023 } 4024 4025 @Override 4026 protected int getTopPaddingOffset() { 4027 return (int) Math.min(0, mShadowDy - mShadowRadius); 4028 } 4029 4030 @Override 4031 protected int getBottomPaddingOffset() { 4032 return (int) Math.max(0, mShadowDy + mShadowRadius); 4033 } 4034 4035 @Override 4036 protected int getRightPaddingOffset() { 4037 return -(getCompoundPaddingRight() - mPaddingRight) + 4038 (int) Math.max(0, mShadowDx + mShadowRadius); 4039 } 4040 4041 @Override 4042 protected boolean verifyDrawable(Drawable who) { 4043 final boolean verified = super.verifyDrawable(who); 4044 if (!verified && mDrawables != null) { 4045 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 4046 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom; 4047 } 4048 return verified; 4049 } 4050 4051 @Override 4052 public void jumpDrawablesToCurrentState() { 4053 super.jumpDrawablesToCurrentState(); 4054 if (mDrawables != null) { 4055 if (mDrawables.mDrawableLeft != null) { 4056 mDrawables.mDrawableLeft.jumpToCurrentState(); 4057 } 4058 if (mDrawables.mDrawableTop != null) { 4059 mDrawables.mDrawableTop.jumpToCurrentState(); 4060 } 4061 if (mDrawables.mDrawableRight != null) { 4062 mDrawables.mDrawableRight.jumpToCurrentState(); 4063 } 4064 if (mDrawables.mDrawableBottom != null) { 4065 mDrawables.mDrawableBottom.jumpToCurrentState(); 4066 } 4067 } 4068 } 4069 4070 @Override 4071 public void invalidateDrawable(Drawable drawable) { 4072 if (verifyDrawable(drawable)) { 4073 final Rect dirty = drawable.getBounds(); 4074 int scrollX = mScrollX; 4075 int scrollY = mScrollY; 4076 4077 // IMPORTANT: The coordinates below are based on the coordinates computed 4078 // for each compound drawable in onDraw(). Make sure to update each section 4079 // accordingly. 4080 final TextView.Drawables drawables = mDrawables; 4081 if (drawables != null) { 4082 if (drawable == drawables.mDrawableLeft) { 4083 final int compoundPaddingTop = getCompoundPaddingTop(); 4084 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4085 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4086 4087 scrollX += mPaddingLeft; 4088 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 4089 } else if (drawable == drawables.mDrawableRight) { 4090 final int compoundPaddingTop = getCompoundPaddingTop(); 4091 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4092 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4093 4094 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 4095 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 4096 } else if (drawable == drawables.mDrawableTop) { 4097 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4098 final int compoundPaddingRight = getCompoundPaddingRight(); 4099 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4100 4101 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 4102 scrollY += mPaddingTop; 4103 } else if (drawable == drawables.mDrawableBottom) { 4104 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4105 final int compoundPaddingRight = getCompoundPaddingRight(); 4106 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4107 4108 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 4109 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 4110 } 4111 } 4112 4113 invalidate(dirty.left + scrollX, dirty.top + scrollY, 4114 dirty.right + scrollX, dirty.bottom + scrollY); 4115 } 4116 } 4117 4118 @Override 4119 protected boolean onSetAlpha(int alpha) { 4120 // Alpha is supported if and only if the drawing can be done in one pass. 4121 // TODO text with spans with a background color currently do not respect this alpha. 4122 if (getBackground() == null) { 4123 mCurrentAlpha = alpha; 4124 final Drawables dr = mDrawables; 4125 if (dr != null) { 4126 if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha); 4127 if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha); 4128 if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha); 4129 if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha); 4130 } 4131 return true; 4132 } 4133 4134 mCurrentAlpha = 255; 4135 return false; 4136 } 4137 4138 /** 4139 * When a TextView is used to display a useful piece of information to the user (such as a 4140 * contact's address), it should be made selectable, so that the user can select and copy this 4141 * content. 4142 * 4143 * Use {@link #setTextIsSelectable(boolean)} or the 4144 * {@link android.R.styleable#TextView_textIsSelectable} XML attribute to make this TextView 4145 * selectable (text is not selectable by default). 4146 * 4147 * Note that the content of an EditText is always selectable. 4148 * 4149 * @return True if the text displayed in this TextView can be selected by the user. 4150 * 4151 * @attr ref android.R.styleable#TextView_textIsSelectable 4152 */ 4153 public boolean isTextSelectable() { 4154 return mTextIsSelectable; 4155 } 4156 4157 /** 4158 * Sets whether or not (default) the content of this view is selectable by the user. 4159 * 4160 * Note that this methods affect the {@link #setFocusable(boolean)}, 4161 * {@link #setFocusableInTouchMode(boolean)} {@link #setClickable(boolean)} and 4162 * {@link #setLongClickable(boolean)} states and you may want to restore these if they were 4163 * customized. 4164 * 4165 * See {@link #isTextSelectable} for details. 4166 * 4167 * @param selectable Whether or not the content of this TextView should be selectable. 4168 */ 4169 public void setTextIsSelectable(boolean selectable) { 4170 if (mTextIsSelectable == selectable) return; 4171 4172 mTextIsSelectable = selectable; 4173 4174 setFocusableInTouchMode(selectable); 4175 setFocusable(selectable); 4176 setClickable(selectable); 4177 setLongClickable(selectable); 4178 4179 // mInputType is already EditorInfo.TYPE_NULL and mInput is null; 4180 4181 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 4182 setText(getText(), selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 4183 4184 // Called by setText above, but safer in case of future code changes 4185 prepareCursorControllers(); 4186 } 4187 4188 @Override 4189 protected int[] onCreateDrawableState(int extraSpace) { 4190 final int[] drawableState; 4191 4192 if (mSingleLine) { 4193 drawableState = super.onCreateDrawableState(extraSpace); 4194 } else { 4195 drawableState = super.onCreateDrawableState(extraSpace + 1); 4196 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 4197 } 4198 4199 if (mTextIsSelectable) { 4200 // Disable pressed state, which was introduced when TextView was made clickable. 4201 // Prevents text color change. 4202 // setClickable(false) would have a similar effect, but it also disables focus changes 4203 // and long press actions, which are both needed by text selection. 4204 final int length = drawableState.length; 4205 for (int i = 0; i < length; i++) { 4206 if (drawableState[i] == R.attr.state_pressed) { 4207 final int[] nonPressedState = new int[length - 1]; 4208 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 4209 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 4210 return nonPressedState; 4211 } 4212 } 4213 } 4214 4215 return drawableState; 4216 } 4217 4218 @Override 4219 protected void onDraw(Canvas canvas) { 4220 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return; 4221 4222 restartMarqueeIfNeeded(); 4223 4224 // Draw the background for this view 4225 super.onDraw(canvas); 4226 4227 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4228 final int compoundPaddingTop = getCompoundPaddingTop(); 4229 final int compoundPaddingRight = getCompoundPaddingRight(); 4230 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4231 final int scrollX = mScrollX; 4232 final int scrollY = mScrollY; 4233 final int right = mRight; 4234 final int left = mLeft; 4235 final int bottom = mBottom; 4236 final int top = mTop; 4237 4238 final Drawables dr = mDrawables; 4239 if (dr != null) { 4240 /* 4241 * Compound, not extended, because the icon is not clipped 4242 * if the text height is smaller. 4243 */ 4244 4245 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 4246 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 4247 4248 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4249 // Make sure to update invalidateDrawable() when changing this code. 4250 if (dr.mDrawableLeft != null) { 4251 canvas.save(); 4252 canvas.translate(scrollX + mPaddingLeft, 4253 scrollY + compoundPaddingTop + 4254 (vspace - dr.mDrawableHeightLeft) / 2); 4255 dr.mDrawableLeft.draw(canvas); 4256 canvas.restore(); 4257 } 4258 4259 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4260 // Make sure to update invalidateDrawable() when changing this code. 4261 if (dr.mDrawableRight != null) { 4262 canvas.save(); 4263 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 4264 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 4265 dr.mDrawableRight.draw(canvas); 4266 canvas.restore(); 4267 } 4268 4269 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4270 // Make sure to update invalidateDrawable() when changing this code. 4271 if (dr.mDrawableTop != null) { 4272 canvas.save(); 4273 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 4274 scrollY + mPaddingTop); 4275 dr.mDrawableTop.draw(canvas); 4276 canvas.restore(); 4277 } 4278 4279 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4280 // Make sure to update invalidateDrawable() when changing this code. 4281 if (dr.mDrawableBottom != null) { 4282 canvas.save(); 4283 canvas.translate(scrollX + compoundPaddingLeft + 4284 (hspace - dr.mDrawableWidthBottom) / 2, 4285 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 4286 dr.mDrawableBottom.draw(canvas); 4287 canvas.restore(); 4288 } 4289 } 4290 4291 if (mPreDrawState == PREDRAW_DONE) { 4292 final ViewTreeObserver observer = getViewTreeObserver(); 4293 if (observer != null) { 4294 observer.removeOnPreDrawListener(this); 4295 mPreDrawState = PREDRAW_NOT_REGISTERED; 4296 } 4297 } 4298 4299 int color = mCurTextColor; 4300 4301 if (mLayout == null) { 4302 assumeLayout(); 4303 } 4304 4305 Layout layout = mLayout; 4306 int cursorcolor = color; 4307 4308 if (mHint != null && mText.length() == 0) { 4309 if (mHintTextColor != null) { 4310 color = mCurHintTextColor; 4311 } 4312 4313 layout = mHintLayout; 4314 } 4315 4316 mTextPaint.setColor(color); 4317 if (mCurrentAlpha != 255) { 4318 // If set, the alpha will override the color's alpha. Multiply the alphas. 4319 mTextPaint.setAlpha((mCurrentAlpha * Color.alpha(color)) / 255); 4320 } 4321 mTextPaint.drawableState = getDrawableState(); 4322 4323 canvas.save(); 4324 /* Would be faster if we didn't have to do this. Can we chop the 4325 (displayable) text so that we don't need to do this ever? 4326 */ 4327 4328 int extendedPaddingTop = getExtendedPaddingTop(); 4329 int extendedPaddingBottom = getExtendedPaddingBottom(); 4330 4331 float clipLeft = compoundPaddingLeft + scrollX; 4332 float clipTop = extendedPaddingTop + scrollY; 4333 float clipRight = right - left - compoundPaddingRight + scrollX; 4334 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 4335 4336 if (mShadowRadius != 0) { 4337 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4338 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4339 4340 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4341 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4342 } 4343 4344 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4345 4346 int voffsetText = 0; 4347 int voffsetCursor = 0; 4348 4349 // translate in by our padding 4350 { 4351 /* shortcircuit calling getVerticaOffset() */ 4352 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4353 voffsetText = getVerticalOffset(false); 4354 voffsetCursor = getVerticalOffset(true); 4355 } 4356 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4357 } 4358 4359 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4360 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4361 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4362 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4363 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4364 } 4365 4366 if (mMarquee != null && mMarquee.isRunning()) { 4367 canvas.translate(-mMarquee.mScroll, 0.0f); 4368 } 4369 } 4370 4371 Path highlight = null; 4372 int selStart = -1, selEnd = -1; 4373 boolean drawCursor = false; 4374 4375 // If there is no movement method, then there can be no selection. 4376 // Check that first and attempt to skip everything having to do with 4377 // the cursor. 4378 // XXX This is not strictly true -- a program could set the 4379 // selection manually if it really wanted to. 4380 if (mMovement != null && (isFocused() || isPressed())) { 4381 selStart = getSelectionStart(); 4382 selEnd = getSelectionEnd(); 4383 4384 if ((isCursorVisible() || mTextIsSelectable) && selStart >= 0 && isEnabled()) { 4385 if (mHighlightPath == null) 4386 mHighlightPath = new Path(); 4387 4388 if (selStart == selEnd) { 4389 if (!mTextIsSelectable && 4390 (SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 4391 if (mHighlightPathBogus) { 4392 mHighlightPath.reset(); 4393 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4394 updateCursorsPositions(); 4395 mHighlightPathBogus = false; 4396 } 4397 4398 // XXX should pass to skin instead of drawing directly 4399 mHighlightPaint.setColor(cursorcolor); 4400 if (mCurrentAlpha != 255) { 4401 mHighlightPaint.setAlpha( 4402 (mCurrentAlpha * Color.alpha(cursorcolor)) / 255); 4403 } 4404 mHighlightPaint.setStyle(Paint.Style.STROKE); 4405 4406 if (mCursorCount > 0) { 4407 drawCursor = true; 4408 } else { 4409 highlight = mHighlightPath; 4410 } 4411 } 4412 } else { 4413 if (mHighlightPathBogus) { 4414 mHighlightPath.reset(); 4415 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4416 mHighlightPathBogus = false; 4417 } 4418 4419 // XXX should pass to skin instead of drawing directly 4420 mHighlightPaint.setColor(mHighlightColor); 4421 if (mCurrentAlpha != 255) { 4422 mHighlightPaint.setAlpha( 4423 (mCurrentAlpha * Color.alpha(mHighlightColor)) / 255); 4424 } 4425 mHighlightPaint.setStyle(Paint.Style.FILL); 4426 4427 highlight = mHighlightPath; 4428 } 4429 } 4430 } 4431 4432 /* Comment out until we decide what to do about animations 4433 boolean isLinearTextOn = false; 4434 if (currentTransformation != null) { 4435 isLinearTextOn = mTextPaint.isLinearTextOn(); 4436 Matrix m = currentTransformation.getMatrix(); 4437 if (!m.isIdentity()) { 4438 // mTextPaint.setLinearTextOn(true); 4439 } 4440 } 4441 */ 4442 4443 final InputMethodState ims = mInputMethodState; 4444 final int cursorOffsetVertical = voffsetCursor - voffsetText; 4445 if (ims != null && ims.mBatchEditNesting == 0) { 4446 InputMethodManager imm = InputMethodManager.peekInstance(); 4447 if (imm != null) { 4448 if (imm.isActive(this)) { 4449 boolean reported = false; 4450 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4451 // We are in extract mode and the content has changed 4452 // in some way... just report complete new text to the 4453 // input method. 4454 reported = reportExtractedText(); 4455 } 4456 if (!reported && highlight != null) { 4457 int candStart = -1; 4458 int candEnd = -1; 4459 if (mText instanceof Spannable) { 4460 Spannable sp = (Spannable)mText; 4461 candStart = EditableInputConnection.getComposingSpanStart(sp); 4462 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 4463 } 4464 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 4465 } 4466 } 4467 4468 if (imm.isWatchingCursor(this) && highlight != null) { 4469 highlight.computeBounds(ims.mTmpRectF, true); 4470 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 4471 4472 canvas.getMatrix().mapPoints(ims.mTmpOffset); 4473 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 4474 4475 ims.mTmpRectF.offset(0, cursorOffsetVertical); 4476 4477 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 4478 (int)(ims.mTmpRectF.top + 0.5), 4479 (int)(ims.mTmpRectF.right + 0.5), 4480 (int)(ims.mTmpRectF.bottom + 0.5)); 4481 4482 imm.updateCursor(this, 4483 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 4484 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 4485 } 4486 } 4487 } 4488 4489 if (mCorrectionHighlighter != null) { 4490 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 4491 } 4492 4493 if (drawCursor) drawCursor(canvas, cursorOffsetVertical); 4494 4495 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4496 4497 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 4498 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 4499 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4500 } 4501 4502 /* Comment out until we decide what to do about animations 4503 if (currentTransformation != null) { 4504 mTextPaint.setLinearTextOn(isLinearTextOn); 4505 } 4506 */ 4507 4508 canvas.restore(); 4509 4510 updateCursorControllerPositions(); 4511 } 4512 4513 private void updateCursorsPositions() { 4514 if (mCursorDrawableRes == 0) return; 4515 4516 final int offset = getSelectionStart(); 4517 final int line = mLayout.getLineForOffset(offset); 4518 final int top = mLayout.getLineTop(line); 4519 final int bottom = mLayout.getLineTop(line + 1); 4520 4521 mCursorCount = mLayout.isLevelBoundary(offset) ? 2 : 1; 4522 4523 int middle = bottom; 4524 if (mCursorCount == 2) { 4525 // Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)} 4526 middle = (top + bottom) >> 1; 4527 } 4528 4529 updateCursorPosition(0, top, middle, mLayout.getPrimaryHorizontal(offset)); 4530 4531 if (mCursorCount == 2) { 4532 updateCursorPosition(1, middle, bottom, mLayout.getSecondaryHorizontal(offset)); 4533 } 4534 } 4535 4536 private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) { 4537 if (mCursorDrawable[cursorIndex] == null) 4538 mCursorDrawable[cursorIndex] = mContext.getResources().getDrawable(mCursorDrawableRes); 4539 4540 if (mTempRect == null) mTempRect = new Rect(); 4541 4542 mCursorDrawable[cursorIndex].getPadding(mTempRect); 4543 final int width = mCursorDrawable[cursorIndex].getIntrinsicWidth(); 4544 horizontal = Math.max(0.5f, horizontal - 0.5f); 4545 final int left = (int) (horizontal) - mTempRect.left; 4546 mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width, 4547 bottom + mTempRect.bottom); 4548 } 4549 4550 private void drawCursor(Canvas canvas, int cursorOffsetVertical) { 4551 final boolean translate = cursorOffsetVertical != 0; 4552 if (translate) canvas.translate(0, cursorOffsetVertical); 4553 for (int i = 0; i < mCursorCount; i++) { 4554 mCursorDrawable[i].draw(canvas); 4555 } 4556 if (translate) canvas.translate(0, -cursorOffsetVertical); 4557 } 4558 4559 /** 4560 * Update the positions of the CursorControllers. Needed by WebTextView, 4561 * which does not draw. 4562 * @hide 4563 */ 4564 protected void updateCursorControllerPositions() { 4565 // No need to create the controllers if they were not already 4566 if (mInsertionPointCursorController != null && 4567 mInsertionPointCursorController.isShowing()) { 4568 mInsertionPointCursorController.updatePosition(); 4569 } 4570 if (mSelectionModifierCursorController != null && 4571 mSelectionModifierCursorController.isShowing()) { 4572 mSelectionModifierCursorController.updatePosition(); 4573 } 4574 } 4575 4576 @Override 4577 public void getFocusedRect(Rect r) { 4578 if (mLayout == null) { 4579 super.getFocusedRect(r); 4580 return; 4581 } 4582 4583 int sel = getSelectionEnd(); 4584 if (sel < 0) { 4585 super.getFocusedRect(r); 4586 return; 4587 } 4588 4589 int line = mLayout.getLineForOffset(sel); 4590 r.top = mLayout.getLineTop(line); 4591 r.bottom = mLayout.getLineBottom(line); 4592 4593 r.left = (int) mLayout.getPrimaryHorizontal(sel); 4594 r.right = r.left + 1; 4595 4596 // Adjust for padding and gravity. 4597 int paddingLeft = getCompoundPaddingLeft(); 4598 int paddingTop = getExtendedPaddingTop(); 4599 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4600 paddingTop += getVerticalOffset(false); 4601 } 4602 r.offset(paddingLeft, paddingTop); 4603 } 4604 4605 /** 4606 * Return the number of lines of text, or 0 if the internal Layout has not 4607 * been built. 4608 */ 4609 public int getLineCount() { 4610 return mLayout != null ? mLayout.getLineCount() : 0; 4611 } 4612 4613 /** 4614 * Return the baseline for the specified line (0...getLineCount() - 1) 4615 * If bounds is not null, return the top, left, right, bottom extents 4616 * of the specified line in it. If the internal Layout has not been built, 4617 * return 0 and set bounds to (0, 0, 0, 0) 4618 * @param line which line to examine (0..getLineCount() - 1) 4619 * @param bounds Optional. If not null, it returns the extent of the line 4620 * @return the Y-coordinate of the baseline 4621 */ 4622 public int getLineBounds(int line, Rect bounds) { 4623 if (mLayout == null) { 4624 if (bounds != null) { 4625 bounds.set(0, 0, 0, 0); 4626 } 4627 return 0; 4628 } 4629 else { 4630 int baseline = mLayout.getLineBounds(line, bounds); 4631 4632 int voffset = getExtendedPaddingTop(); 4633 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4634 voffset += getVerticalOffset(true); 4635 } 4636 if (bounds != null) { 4637 bounds.offset(getCompoundPaddingLeft(), voffset); 4638 } 4639 return baseline + voffset; 4640 } 4641 } 4642 4643 @Override 4644 public int getBaseline() { 4645 if (mLayout == null) { 4646 return super.getBaseline(); 4647 } 4648 4649 int voffset = 0; 4650 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4651 voffset = getVerticalOffset(true); 4652 } 4653 4654 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 4655 } 4656 4657 @Override 4658 public boolean onKeyDown(int keyCode, KeyEvent event) { 4659 int which = doKeyDown(keyCode, event, null); 4660 if (which == 0) { 4661 // Go through default dispatching. 4662 return super.onKeyDown(keyCode, event); 4663 } 4664 4665 return true; 4666 } 4667 4668 @Override 4669 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 4670 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 4671 4672 int which = doKeyDown(keyCode, down, event); 4673 if (which == 0) { 4674 // Go through default dispatching. 4675 return super.onKeyMultiple(keyCode, repeatCount, event); 4676 } 4677 if (which == -1) { 4678 // Consumed the whole thing. 4679 return true; 4680 } 4681 4682 repeatCount--; 4683 4684 // We are going to dispatch the remaining events to either the input 4685 // or movement method. To do this, we will just send a repeated stream 4686 // of down and up events until we have done the complete repeatCount. 4687 // It would be nice if those interfaces had an onKeyMultiple() method, 4688 // but adding that is a more complicated change. 4689 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 4690 if (which == 1) { 4691 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4692 while (--repeatCount > 0) { 4693 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 4694 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4695 } 4696 hideErrorIfUnchanged(); 4697 4698 } else if (which == 2) { 4699 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4700 while (--repeatCount > 0) { 4701 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 4702 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4703 } 4704 } 4705 4706 return true; 4707 } 4708 4709 /** 4710 * Returns true if pressing ENTER in this field advances focus instead 4711 * of inserting the character. This is true mostly in single-line fields, 4712 * but also in mail addresses and subjects which will display on multiple 4713 * lines but where it doesn't make sense to insert newlines. 4714 */ 4715 private boolean shouldAdvanceFocusOnEnter() { 4716 if (mInput == null) { 4717 return false; 4718 } 4719 4720 if (mSingleLine) { 4721 return true; 4722 } 4723 4724 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4725 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4726 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 4727 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 4728 return true; 4729 } 4730 } 4731 4732 return false; 4733 } 4734 4735 /** 4736 * Returns true if pressing TAB in this field advances focus instead 4737 * of inserting the character. Insert tabs only in multi-line editors. 4738 */ 4739 private boolean shouldAdvanceFocusOnTab() { 4740 if (mInput != null && !mSingleLine) { 4741 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4742 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4743 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 4744 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 4745 return false; 4746 } 4747 } 4748 } 4749 return true; 4750 } 4751 4752 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 4753 if (!isEnabled()) { 4754 return 0; 4755 } 4756 4757 switch (keyCode) { 4758 case KeyEvent.KEYCODE_ENTER: 4759 mEnterKeyIsDown = true; 4760 if (event.hasNoModifiers()) { 4761 // When mInputContentType is set, we know that we are 4762 // running in a "modern" cupcake environment, so don't need 4763 // to worry about the application trying to capture 4764 // enter key events. 4765 if (mInputContentType != null) { 4766 // If there is an action listener, given them a 4767 // chance to consume the event. 4768 if (mInputContentType.onEditorActionListener != null && 4769 mInputContentType.onEditorActionListener.onEditorAction( 4770 this, EditorInfo.IME_NULL, event)) { 4771 mInputContentType.enterDown = true; 4772 // We are consuming the enter key for them. 4773 return -1; 4774 } 4775 } 4776 4777 // If our editor should move focus when enter is pressed, or 4778 // this is a generated event from an IME action button, then 4779 // don't let it be inserted into the text. 4780 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 4781 || shouldAdvanceFocusOnEnter()) { 4782 if (mOnClickListener != null) { 4783 return 0; 4784 } 4785 return -1; 4786 } 4787 } 4788 break; 4789 4790 case KeyEvent.KEYCODE_DPAD_CENTER: 4791 mDPadCenterIsDown = true; 4792 if (event.hasNoModifiers()) { 4793 if (shouldAdvanceFocusOnEnter()) { 4794 return 0; 4795 } 4796 } 4797 break; 4798 4799 case KeyEvent.KEYCODE_TAB: 4800 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 4801 if (shouldAdvanceFocusOnTab()) { 4802 return 0; 4803 } 4804 } 4805 break; 4806 4807 // Has to be done on key down (and not on key up) to correctly be intercepted. 4808 case KeyEvent.KEYCODE_BACK: 4809 if (mSelectionActionMode != null) { 4810 stopSelectionActionMode(); 4811 return -1; 4812 } 4813 break; 4814 } 4815 4816 if (mInput != null) { 4817 resetErrorChangedFlag(); 4818 4819 boolean doDown = true; 4820 if (otherEvent != null) { 4821 try { 4822 beginBatchEdit(); 4823 final boolean handled = mInput.onKeyOther(this, (Editable) mText, otherEvent); 4824 hideErrorIfUnchanged(); 4825 doDown = false; 4826 if (handled) { 4827 return -1; 4828 } 4829 } catch (AbstractMethodError e) { 4830 // onKeyOther was added after 1.0, so if it isn't 4831 // implemented we need to try to dispatch as a regular down. 4832 } finally { 4833 endBatchEdit(); 4834 } 4835 } 4836 4837 if (doDown) { 4838 beginBatchEdit(); 4839 final boolean handled = mInput.onKeyDown(this, (Editable) mText, keyCode, event); 4840 endBatchEdit(); 4841 hideErrorIfUnchanged(); 4842 if (handled) return 1; 4843 } 4844 } 4845 4846 // bug 650865: sometimes we get a key event before a layout. 4847 // don't try to move around if we don't know the layout. 4848 4849 if (mMovement != null && mLayout != null) { 4850 boolean doDown = true; 4851 if (otherEvent != null) { 4852 try { 4853 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 4854 otherEvent); 4855 doDown = false; 4856 if (handled) { 4857 return -1; 4858 } 4859 } catch (AbstractMethodError e) { 4860 // onKeyOther was added after 1.0, so if it isn't 4861 // implemented we need to try to dispatch as a regular down. 4862 } 4863 } 4864 if (doDown) { 4865 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 4866 return 2; 4867 } 4868 } 4869 4870 return 0; 4871 } 4872 4873 /** 4874 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 4875 * can be recorded. 4876 * @hide 4877 */ 4878 public void resetErrorChangedFlag() { 4879 /* 4880 * Keep track of what the error was before doing the input 4881 * so that if an input filter changed the error, we leave 4882 * that error showing. Otherwise, we take down whatever 4883 * error was showing when the user types something. 4884 */ 4885 mErrorWasChanged = false; 4886 } 4887 4888 /** 4889 * @hide 4890 */ 4891 public void hideErrorIfUnchanged() { 4892 if (mError != null && !mErrorWasChanged) { 4893 setError(null, null); 4894 } 4895 } 4896 4897 @Override 4898 public boolean onKeyUp(int keyCode, KeyEvent event) { 4899 if (!isEnabled()) { 4900 return super.onKeyUp(keyCode, event); 4901 } 4902 4903 switch (keyCode) { 4904 case KeyEvent.KEYCODE_DPAD_CENTER: 4905 mDPadCenterIsDown = false; 4906 if (event.hasNoModifiers()) { 4907 /* 4908 * If there is a click listener, just call through to 4909 * super, which will invoke it. 4910 * 4911 * If there isn't a click listener, try to show the soft 4912 * input method. (It will also 4913 * call performClick(), but that won't do anything in 4914 * this case.) 4915 */ 4916 if (mOnClickListener == null) { 4917 if (mMovement != null && mText instanceof Editable 4918 && mLayout != null && onCheckIsTextEditor()) { 4919 InputMethodManager imm = InputMethodManager.peekInstance(); 4920 if (imm != null) imm.showSoftInput(this, 0); 4921 } 4922 } 4923 } 4924 return super.onKeyUp(keyCode, event); 4925 4926 case KeyEvent.KEYCODE_ENTER: 4927 mEnterKeyIsDown = false; 4928 if (event.hasNoModifiers()) { 4929 if (mInputContentType != null 4930 && mInputContentType.onEditorActionListener != null 4931 && mInputContentType.enterDown) { 4932 mInputContentType.enterDown = false; 4933 if (mInputContentType.onEditorActionListener.onEditorAction( 4934 this, EditorInfo.IME_NULL, event)) { 4935 return true; 4936 } 4937 } 4938 4939 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 4940 || shouldAdvanceFocusOnEnter()) { 4941 /* 4942 * If there is a click listener, just call through to 4943 * super, which will invoke it. 4944 * 4945 * If there isn't a click listener, try to advance focus, 4946 * but still call through to super, which will reset the 4947 * pressed state and longpress state. (It will also 4948 * call performClick(), but that won't do anything in 4949 * this case.) 4950 */ 4951 if (mOnClickListener == null) { 4952 View v = focusSearch(FOCUS_DOWN); 4953 4954 if (v != null) { 4955 if (!v.requestFocus(FOCUS_DOWN)) { 4956 throw new IllegalStateException( 4957 "focus search returned a view " + 4958 "that wasn't able to take focus!"); 4959 } 4960 4961 /* 4962 * Return true because we handled the key; super 4963 * will return false because there was no click 4964 * listener. 4965 */ 4966 super.onKeyUp(keyCode, event); 4967 return true; 4968 } else if ((event.getFlags() 4969 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 4970 // No target for next focus, but make sure the IME 4971 // if this came from it. 4972 InputMethodManager imm = InputMethodManager.peekInstance(); 4973 if (imm != null && imm.isActive(this)) { 4974 imm.hideSoftInputFromWindow(getWindowToken(), 0); 4975 } 4976 } 4977 } 4978 } 4979 return super.onKeyUp(keyCode, event); 4980 } 4981 break; 4982 } 4983 4984 if (mInput != null) 4985 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 4986 return true; 4987 4988 if (mMovement != null && mLayout != null) 4989 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 4990 return true; 4991 4992 return super.onKeyUp(keyCode, event); 4993 } 4994 4995 @Override public boolean onCheckIsTextEditor() { 4996 return mInputType != EditorInfo.TYPE_NULL; 4997 } 4998 4999 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5000 if (onCheckIsTextEditor() && isEnabled()) { 5001 if (mInputMethodState == null) { 5002 mInputMethodState = new InputMethodState(); 5003 } 5004 outAttrs.inputType = mInputType; 5005 if (mInputContentType != null) { 5006 outAttrs.imeOptions = mInputContentType.imeOptions; 5007 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 5008 outAttrs.actionLabel = mInputContentType.imeActionLabel; 5009 outAttrs.actionId = mInputContentType.imeActionId; 5010 outAttrs.extras = mInputContentType.extras; 5011 } else { 5012 outAttrs.imeOptions = EditorInfo.IME_NULL; 5013 } 5014 if (focusSearch(FOCUS_DOWN) != null) { 5015 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 5016 } 5017 if (focusSearch(FOCUS_UP) != null) { 5018 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 5019 } 5020 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 5021 == EditorInfo.IME_ACTION_UNSPECIFIED) { 5022 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 5023 // An action has not been set, but the enter key will move to 5024 // the next focus, so set the action to that. 5025 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 5026 } else { 5027 // An action has not been set, and there is no focus to move 5028 // to, so let's just supply a "done" action. 5029 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 5030 } 5031 if (!shouldAdvanceFocusOnEnter()) { 5032 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5033 } 5034 } 5035 if (isMultilineInputType(outAttrs.inputType)) { 5036 // Multi-line text editors should always show an enter key. 5037 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5038 } 5039 outAttrs.hintText = mHint; 5040 if (mText instanceof Editable) { 5041 InputConnection ic = new EditableInputConnection(this); 5042 outAttrs.initialSelStart = getSelectionStart(); 5043 outAttrs.initialSelEnd = getSelectionEnd(); 5044 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 5045 return ic; 5046 } 5047 } 5048 return null; 5049 } 5050 5051 /** 5052 * If this TextView contains editable content, extract a portion of it 5053 * based on the information in <var>request</var> in to <var>outText</var>. 5054 * @return Returns true if the text was successfully extracted, else false. 5055 */ 5056 public boolean extractText(ExtractedTextRequest request, 5057 ExtractedText outText) { 5058 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 5059 EXTRACT_UNKNOWN, outText); 5060 } 5061 5062 static final int EXTRACT_NOTHING = -2; 5063 static final int EXTRACT_UNKNOWN = -1; 5064 5065 boolean extractTextInternal(ExtractedTextRequest request, 5066 int partialStartOffset, int partialEndOffset, int delta, 5067 ExtractedText outText) { 5068 final CharSequence content = mText; 5069 if (content != null) { 5070 if (partialStartOffset != EXTRACT_NOTHING) { 5071 final int N = content.length(); 5072 if (partialStartOffset < 0) { 5073 outText.partialStartOffset = outText.partialEndOffset = -1; 5074 partialStartOffset = 0; 5075 partialEndOffset = N; 5076 } else { 5077 // Now use the delta to determine the actual amount of text 5078 // we need. 5079 partialEndOffset += delta; 5080 // Adjust offsets to ensure we contain full spans. 5081 if (content instanceof Spanned) { 5082 Spanned spanned = (Spanned)content; 5083 Object[] spans = spanned.getSpans(partialStartOffset, 5084 partialEndOffset, ParcelableSpan.class); 5085 int i = spans.length; 5086 while (i > 0) { 5087 i--; 5088 int j = spanned.getSpanStart(spans[i]); 5089 if (j < partialStartOffset) partialStartOffset = j; 5090 j = spanned.getSpanEnd(spans[i]); 5091 if (j > partialEndOffset) partialEndOffset = j; 5092 } 5093 } 5094 outText.partialStartOffset = partialStartOffset; 5095 outText.partialEndOffset = partialEndOffset - delta; 5096 5097 if (partialStartOffset > N) { 5098 partialStartOffset = N; 5099 } else if (partialStartOffset < 0) { 5100 partialStartOffset = 0; 5101 } 5102 if (partialEndOffset > N) { 5103 partialEndOffset = N; 5104 } else if (partialEndOffset < 0) { 5105 partialEndOffset = 0; 5106 } 5107 } 5108 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 5109 outText.text = content.subSequence(partialStartOffset, 5110 partialEndOffset); 5111 } else { 5112 outText.text = TextUtils.substring(content, partialStartOffset, 5113 partialEndOffset); 5114 } 5115 } else { 5116 outText.partialStartOffset = 0; 5117 outText.partialEndOffset = 0; 5118 outText.text = ""; 5119 } 5120 outText.flags = 0; 5121 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 5122 outText.flags |= ExtractedText.FLAG_SELECTING; 5123 } 5124 if (mSingleLine) { 5125 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 5126 } 5127 outText.startOffset = 0; 5128 outText.selectionStart = getSelectionStart(); 5129 outText.selectionEnd = getSelectionEnd(); 5130 return true; 5131 } 5132 return false; 5133 } 5134 5135 boolean reportExtractedText() { 5136 final InputMethodState ims = mInputMethodState; 5137 if (ims != null) { 5138 final boolean contentChanged = ims.mContentChanged; 5139 if (contentChanged || ims.mSelectionModeChanged) { 5140 ims.mContentChanged = false; 5141 ims.mSelectionModeChanged = false; 5142 final ExtractedTextRequest req = mInputMethodState.mExtracting; 5143 if (req != null) { 5144 InputMethodManager imm = InputMethodManager.peekInstance(); 5145 if (imm != null) { 5146 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 5147 + ims.mChangedStart + " end=" + ims.mChangedEnd 5148 + " delta=" + ims.mChangedDelta); 5149 if (ims.mChangedStart < 0 && !contentChanged) { 5150 ims.mChangedStart = EXTRACT_NOTHING; 5151 } 5152 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 5153 ims.mChangedDelta, ims.mTmpExtracted)) { 5154 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 5155 + ims.mTmpExtracted.partialStartOffset 5156 + " end=" + ims.mTmpExtracted.partialEndOffset 5157 + ": " + ims.mTmpExtracted.text); 5158 imm.updateExtractedText(this, req.token, 5159 mInputMethodState.mTmpExtracted); 5160 ims.mChangedStart = EXTRACT_UNKNOWN; 5161 ims.mChangedEnd = EXTRACT_UNKNOWN; 5162 ims.mChangedDelta = 0; 5163 ims.mContentChanged = false; 5164 return true; 5165 } 5166 } 5167 } 5168 } 5169 } 5170 return false; 5171 } 5172 5173 /** 5174 * This is used to remove all style-impacting spans from text before new 5175 * extracted text is being replaced into it, so that we don't have any 5176 * lingering spans applied during the replace. 5177 */ 5178 static void removeParcelableSpans(Spannable spannable, int start, int end) { 5179 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 5180 int i = spans.length; 5181 while (i > 0) { 5182 i--; 5183 spannable.removeSpan(spans[i]); 5184 } 5185 } 5186 5187 /** 5188 * Apply to this text view the given extracted text, as previously 5189 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 5190 */ 5191 public void setExtractedText(ExtractedText text) { 5192 Editable content = getEditableText(); 5193 if (text.text != null) { 5194 if (content == null) { 5195 setText(text.text, TextView.BufferType.EDITABLE); 5196 } else if (text.partialStartOffset < 0) { 5197 removeParcelableSpans(content, 0, content.length()); 5198 content.replace(0, content.length(), text.text); 5199 } else { 5200 final int N = content.length(); 5201 int start = text.partialStartOffset; 5202 if (start > N) start = N; 5203 int end = text.partialEndOffset; 5204 if (end > N) end = N; 5205 removeParcelableSpans(content, start, end); 5206 content.replace(start, end, text.text); 5207 } 5208 } 5209 5210 // Now set the selection position... make sure it is in range, to 5211 // avoid crashes. If this is a partial update, it is possible that 5212 // the underlying text may have changed, causing us problems here. 5213 // Also we just don't want to trust clients to do the right thing. 5214 Spannable sp = (Spannable)getText(); 5215 final int N = sp.length(); 5216 int start = text.selectionStart; 5217 if (start < 0) start = 0; 5218 else if (start > N) start = N; 5219 int end = text.selectionEnd; 5220 if (end < 0) end = 0; 5221 else if (end > N) end = N; 5222 Selection.setSelection(sp, start, end); 5223 5224 // Finally, update the selection mode. 5225 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 5226 MetaKeyKeyListener.startSelecting(this, sp); 5227 } else { 5228 MetaKeyKeyListener.stopSelecting(this, sp); 5229 } 5230 } 5231 5232 /** 5233 * @hide 5234 */ 5235 public void setExtracting(ExtractedTextRequest req) { 5236 if (mInputMethodState != null) { 5237 mInputMethodState.mExtracting = req; 5238 } 5239 // This stops a possible text selection mode. Maybe not intended. 5240 hideControllers(); 5241 } 5242 5243 /** 5244 * Called by the framework in response to a text completion from 5245 * the current input method, provided by it calling 5246 * {@link InputConnection#commitCompletion 5247 * InputConnection.commitCompletion()}. The default implementation does 5248 * nothing; text views that are supporting auto-completion should override 5249 * this to do their desired behavior. 5250 * 5251 * @param text The auto complete text the user has selected. 5252 */ 5253 public void onCommitCompletion(CompletionInfo text) { 5254 } 5255 5256 /** 5257 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 5258 * a dictionnary) from the current input method, provided by it calling 5259 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 5260 * implementation flashes the background of the corrected word to provide feedback to the user. 5261 * 5262 * @param info The auto correct info about the text that was corrected. 5263 */ 5264 public void onCommitCorrection(CorrectionInfo info) { 5265 if (mCorrectionHighlighter == null) { 5266 mCorrectionHighlighter = new CorrectionHighlighter(); 5267 } else { 5268 mCorrectionHighlighter.invalidate(false); 5269 } 5270 5271 mCorrectionHighlighter.highlight(info); 5272 } 5273 5274 private class CorrectionHighlighter { 5275 private final Path mPath = new Path(); 5276 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 5277 private int mStart, mEnd; 5278 private long mFadingStartTime; 5279 private final static int FADE_OUT_DURATION = 400; 5280 5281 public CorrectionHighlighter() { 5282 mPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale); 5283 mPaint.setStyle(Paint.Style.FILL); 5284 } 5285 5286 public void highlight(CorrectionInfo info) { 5287 mStart = info.getOffset(); 5288 mEnd = mStart + info.getNewText().length(); 5289 mFadingStartTime = SystemClock.uptimeMillis(); 5290 5291 if (mStart < 0 || mEnd < 0) { 5292 stopAnimation(); 5293 } 5294 } 5295 5296 public void draw(Canvas canvas, int cursorOffsetVertical) { 5297 if (updatePath() && updatePaint()) { 5298 if (cursorOffsetVertical != 0) { 5299 canvas.translate(0, cursorOffsetVertical); 5300 } 5301 5302 canvas.drawPath(mPath, mPaint); 5303 5304 if (cursorOffsetVertical != 0) { 5305 canvas.translate(0, -cursorOffsetVertical); 5306 } 5307 invalidate(true); 5308 } else { 5309 stopAnimation(); 5310 invalidate(false); 5311 } 5312 } 5313 5314 private boolean updatePaint() { 5315 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 5316 if (duration > FADE_OUT_DURATION) return false; 5317 5318 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 5319 final int highlightColorAlpha = Color.alpha(mHighlightColor); 5320 final int color = (mHighlightColor & 0x00FFFFFF) + 5321 ((int) (highlightColorAlpha * coef) << 24); 5322 mPaint.setColor(color); 5323 return true; 5324 } 5325 5326 private boolean updatePath() { 5327 final Layout layout = TextView.this.mLayout; 5328 if (layout == null) return false; 5329 5330 // Update in case text is edited while the animation is run 5331 final int length = mText.length(); 5332 int start = Math.min(length, mStart); 5333 int end = Math.min(length, mEnd); 5334 5335 mPath.reset(); 5336 TextView.this.mLayout.getSelectionPath(start, end, mPath); 5337 return true; 5338 } 5339 5340 private void invalidate(boolean delayed) { 5341 if (TextView.this.mLayout == null) return; 5342 5343 synchronized (sTempRect) { 5344 mPath.computeBounds(sTempRect, false); 5345 5346 int left = getCompoundPaddingLeft(); 5347 int top = getExtendedPaddingTop() + getVerticalOffset(true); 5348 5349 if (delayed) { 5350 TextView.this.postInvalidateDelayed(16, // 60 Hz update 5351 left + (int) sTempRect.left, top + (int) sTempRect.top, 5352 left + (int) sTempRect.right, top + (int) sTempRect.bottom); 5353 } else { 5354 TextView.this.postInvalidate((int) sTempRect.left, (int) sTempRect.top, 5355 (int) sTempRect.right, (int) sTempRect.bottom); 5356 } 5357 } 5358 } 5359 5360 private void stopAnimation() { 5361 TextView.this.mCorrectionHighlighter = null; 5362 } 5363 } 5364 5365 public void beginBatchEdit() { 5366 mInBatchEditControllers = true; 5367 final InputMethodState ims = mInputMethodState; 5368 if (ims != null) { 5369 int nesting = ++ims.mBatchEditNesting; 5370 if (nesting == 1) { 5371 ims.mCursorChanged = false; 5372 ims.mChangedDelta = 0; 5373 if (ims.mContentChanged) { 5374 // We already have a pending change from somewhere else, 5375 // so turn this into a full update. 5376 ims.mChangedStart = 0; 5377 ims.mChangedEnd = mText.length(); 5378 } else { 5379 ims.mChangedStart = EXTRACT_UNKNOWN; 5380 ims.mChangedEnd = EXTRACT_UNKNOWN; 5381 ims.mContentChanged = false; 5382 } 5383 onBeginBatchEdit(); 5384 } 5385 } 5386 } 5387 5388 public void endBatchEdit() { 5389 mInBatchEditControllers = false; 5390 final InputMethodState ims = mInputMethodState; 5391 if (ims != null) { 5392 int nesting = --ims.mBatchEditNesting; 5393 if (nesting == 0) { 5394 finishBatchEdit(ims); 5395 } 5396 } 5397 } 5398 5399 void ensureEndedBatchEdit() { 5400 final InputMethodState ims = mInputMethodState; 5401 if (ims != null && ims.mBatchEditNesting != 0) { 5402 ims.mBatchEditNesting = 0; 5403 finishBatchEdit(ims); 5404 } 5405 } 5406 5407 void finishBatchEdit(final InputMethodState ims) { 5408 onEndBatchEdit(); 5409 5410 if (ims.mContentChanged || ims.mSelectionModeChanged) { 5411 updateAfterEdit(); 5412 reportExtractedText(); 5413 } else if (ims.mCursorChanged) { 5414 // Cheezy way to get us to report the current cursor location. 5415 invalidateCursor(); 5416 } 5417 } 5418 5419 void updateAfterEdit() { 5420 invalidate(); 5421 int curs = getSelectionStart(); 5422 5423 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == 5424 Gravity.BOTTOM) { 5425 registerForPreDraw(); 5426 } 5427 5428 if (curs >= 0) { 5429 mHighlightPathBogus = true; 5430 5431 if (isFocused()) { 5432 mShowCursor = SystemClock.uptimeMillis(); 5433 makeBlink(); 5434 } 5435 } 5436 5437 checkForResize(); 5438 } 5439 5440 /** 5441 * Called by the framework in response to a request to begin a batch 5442 * of edit operations through a call to link {@link #beginBatchEdit()}. 5443 */ 5444 public void onBeginBatchEdit() { 5445 } 5446 5447 /** 5448 * Called by the framework in response to a request to end a batch 5449 * of edit operations through a call to link {@link #endBatchEdit}. 5450 */ 5451 public void onEndBatchEdit() { 5452 } 5453 5454 /** 5455 * Called by the framework in response to a private command from the 5456 * current method, provided by it calling 5457 * {@link InputConnection#performPrivateCommand 5458 * InputConnection.performPrivateCommand()}. 5459 * 5460 * @param action The action name of the command. 5461 * @param data Any additional data for the command. This may be null. 5462 * @return Return true if you handled the command, else false. 5463 */ 5464 public boolean onPrivateIMECommand(String action, Bundle data) { 5465 return false; 5466 } 5467 5468 private void nullLayouts() { 5469 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 5470 mSavedLayout = (BoringLayout) mLayout; 5471 } 5472 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 5473 mSavedHintLayout = (BoringLayout) mHintLayout; 5474 } 5475 5476 mLayout = mHintLayout = null; 5477 5478 // Since it depends on the value of mLayout 5479 prepareCursorControllers(); 5480 } 5481 5482 /** 5483 * Make a new Layout based on the already-measured size of the view, 5484 * on the assumption that it was measured correctly at some point. 5485 */ 5486 private void assumeLayout() { 5487 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5488 5489 if (width < 1) { 5490 width = 0; 5491 } 5492 5493 int physicalWidth = width; 5494 5495 if (mHorizontallyScrolling) { 5496 width = VERY_WIDE; 5497 } 5498 5499 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 5500 physicalWidth, false); 5501 } 5502 5503 /** 5504 * The width passed in is now the desired layout width, 5505 * not the full view width with padding. 5506 * {@hide} 5507 */ 5508 protected void makeNewLayout(int w, int hintWidth, 5509 BoringLayout.Metrics boring, 5510 BoringLayout.Metrics hintBoring, 5511 int ellipsisWidth, boolean bringIntoView) { 5512 stopMarquee(); 5513 5514 mHighlightPathBogus = true; 5515 5516 if (w < 0) { 5517 w = 0; 5518 } 5519 if (hintWidth < 0) { 5520 hintWidth = 0; 5521 } 5522 5523 Layout.Alignment alignment; 5524 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 5525 case Gravity.CENTER_HORIZONTAL: 5526 alignment = Layout.Alignment.ALIGN_CENTER; 5527 break; 5528 5529 case Gravity.RIGHT: 5530 // Note, Layout resolves ALIGN_OPPOSITE to left or 5531 // right based on the paragraph direction. 5532 alignment = Layout.Alignment.ALIGN_OPPOSITE; 5533 break; 5534 5535 default: 5536 alignment = Layout.Alignment.ALIGN_NORMAL; 5537 } 5538 5539 boolean shouldEllipsize = mEllipsize != null && mInput == null; 5540 5541 if (mText instanceof Spannable) { 5542 mLayout = new DynamicLayout(mText, mTransformed, mTextPaint, w, 5543 alignment, mSpacingMult, 5544 mSpacingAdd, mIncludePad, mInput == null ? mEllipsize : null, 5545 ellipsisWidth); 5546 } else { 5547 if (boring == UNKNOWN_BORING) { 5548 boring = BoringLayout.isBoring(mTransformed, mTextPaint, 5549 mBoring); 5550 if (boring != null) { 5551 mBoring = boring; 5552 } 5553 } 5554 5555 if (boring != null) { 5556 if (boring.width <= w && 5557 (mEllipsize == null || boring.width <= ellipsisWidth)) { 5558 if (mSavedLayout != null) { 5559 mLayout = mSavedLayout. 5560 replaceOrMake(mTransformed, mTextPaint, 5561 w, alignment, mSpacingMult, mSpacingAdd, 5562 boring, mIncludePad); 5563 } else { 5564 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5565 w, alignment, mSpacingMult, mSpacingAdd, 5566 boring, mIncludePad); 5567 } 5568 5569 mSavedLayout = (BoringLayout) mLayout; 5570 } else if (shouldEllipsize && boring.width <= w) { 5571 if (mSavedLayout != null) { 5572 mLayout = mSavedLayout. 5573 replaceOrMake(mTransformed, mTextPaint, 5574 w, alignment, mSpacingMult, mSpacingAdd, 5575 boring, mIncludePad, mEllipsize, 5576 ellipsisWidth); 5577 } else { 5578 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5579 w, alignment, mSpacingMult, mSpacingAdd, 5580 boring, mIncludePad, mEllipsize, 5581 ellipsisWidth); 5582 } 5583 } else if (shouldEllipsize) { 5584 mLayout = new StaticLayout(mTransformed, 5585 0, mTransformed.length(), 5586 mTextPaint, w, alignment, mSpacingMult, 5587 mSpacingAdd, mIncludePad, mEllipsize, 5588 ellipsisWidth); 5589 } else { 5590 mLayout = new StaticLayout(mTransformed, mTextPaint, 5591 w, alignment, mSpacingMult, mSpacingAdd, 5592 mIncludePad); 5593 } 5594 } else if (shouldEllipsize) { 5595 mLayout = new StaticLayout(mTransformed, 5596 0, mTransformed.length(), 5597 mTextPaint, w, alignment, mSpacingMult, 5598 mSpacingAdd, mIncludePad, mEllipsize, 5599 ellipsisWidth); 5600 } else { 5601 mLayout = new StaticLayout(mTransformed, mTextPaint, 5602 w, alignment, mSpacingMult, mSpacingAdd, 5603 mIncludePad); 5604 } 5605 } 5606 5607 shouldEllipsize = mEllipsize != null; 5608 mHintLayout = null; 5609 5610 if (mHint != null) { 5611 if (shouldEllipsize) hintWidth = w; 5612 5613 if (hintBoring == UNKNOWN_BORING) { 5614 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, 5615 mHintBoring); 5616 if (hintBoring != null) { 5617 mHintBoring = hintBoring; 5618 } 5619 } 5620 5621 if (hintBoring != null) { 5622 if (hintBoring.width <= hintWidth && 5623 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 5624 if (mSavedHintLayout != null) { 5625 mHintLayout = mSavedHintLayout. 5626 replaceOrMake(mHint, mTextPaint, 5627 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5628 hintBoring, mIncludePad); 5629 } else { 5630 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5631 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5632 hintBoring, mIncludePad); 5633 } 5634 5635 mSavedHintLayout = (BoringLayout) mHintLayout; 5636 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 5637 if (mSavedHintLayout != null) { 5638 mHintLayout = mSavedHintLayout. 5639 replaceOrMake(mHint, mTextPaint, 5640 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5641 hintBoring, mIncludePad, mEllipsize, 5642 ellipsisWidth); 5643 } else { 5644 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5645 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5646 hintBoring, mIncludePad, mEllipsize, 5647 ellipsisWidth); 5648 } 5649 } else if (shouldEllipsize) { 5650 mHintLayout = new StaticLayout(mHint, 5651 0, mHint.length(), 5652 mTextPaint, hintWidth, alignment, mSpacingMult, 5653 mSpacingAdd, mIncludePad, mEllipsize, 5654 ellipsisWidth); 5655 } else { 5656 mHintLayout = new StaticLayout(mHint, mTextPaint, 5657 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5658 mIncludePad); 5659 } 5660 } else if (shouldEllipsize) { 5661 mHintLayout = new StaticLayout(mHint, 5662 0, mHint.length(), 5663 mTextPaint, hintWidth, alignment, mSpacingMult, 5664 mSpacingAdd, mIncludePad, mEllipsize, 5665 ellipsisWidth); 5666 } else { 5667 mHintLayout = new StaticLayout(mHint, mTextPaint, 5668 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5669 mIncludePad); 5670 } 5671 } 5672 5673 if (bringIntoView) { 5674 registerForPreDraw(); 5675 } 5676 5677 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 5678 if (!compressText(ellipsisWidth)) { 5679 final int height = mLayoutParams.height; 5680 // If the size of the view does not depend on the size of the text, try to 5681 // start the marquee immediately 5682 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 5683 startMarquee(); 5684 } else { 5685 // Defer the start of the marquee until we know our width (see setFrame()) 5686 mRestartMarquee = true; 5687 } 5688 } 5689 } 5690 5691 // CursorControllers need a non-null mLayout 5692 prepareCursorControllers(); 5693 } 5694 5695 private boolean compressText(float width) { 5696 if (isHardwareAccelerated()) return false; 5697 5698 // Only compress the text if it hasn't been compressed by the previous pass 5699 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 5700 mTextPaint.getTextScaleX() == 1.0f) { 5701 final float textWidth = mLayout.getLineWidth(0); 5702 final float overflow = (textWidth + 1.0f - width) / width; 5703 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 5704 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 5705 post(new Runnable() { 5706 public void run() { 5707 requestLayout(); 5708 } 5709 }); 5710 return true; 5711 } 5712 } 5713 5714 return false; 5715 } 5716 5717 private static int desired(Layout layout) { 5718 int n = layout.getLineCount(); 5719 CharSequence text = layout.getText(); 5720 float max = 0; 5721 5722 // if any line was wrapped, we can't use it. 5723 // but it's ok for the last line not to have a newline 5724 5725 for (int i = 0; i < n - 1; i++) { 5726 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 5727 return -1; 5728 } 5729 5730 for (int i = 0; i < n; i++) { 5731 max = Math.max(max, layout.getLineWidth(i)); 5732 } 5733 5734 return (int) FloatMath.ceil(max); 5735 } 5736 5737 /** 5738 * Set whether the TextView includes extra top and bottom padding to make 5739 * room for accents that go above the normal ascent and descent. 5740 * The default is true. 5741 * 5742 * @attr ref android.R.styleable#TextView_includeFontPadding 5743 */ 5744 public void setIncludeFontPadding(boolean includepad) { 5745 mIncludePad = includepad; 5746 5747 if (mLayout != null) { 5748 nullLayouts(); 5749 requestLayout(); 5750 invalidate(); 5751 } 5752 } 5753 5754 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 5755 5756 @Override 5757 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 5758 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 5759 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 5760 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 5761 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 5762 5763 int width; 5764 int height; 5765 5766 BoringLayout.Metrics boring = UNKNOWN_BORING; 5767 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 5768 5769 int des = -1; 5770 boolean fromexisting = false; 5771 5772 if (widthMode == MeasureSpec.EXACTLY) { 5773 // Parent has told us how big to be. So be it. 5774 width = widthSize; 5775 } else { 5776 if (mLayout != null && mEllipsize == null) { 5777 des = desired(mLayout); 5778 } 5779 5780 if (des < 0) { 5781 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mBoring); 5782 if (boring != null) { 5783 mBoring = boring; 5784 } 5785 } else { 5786 fromexisting = true; 5787 } 5788 5789 if (boring == null || boring == UNKNOWN_BORING) { 5790 if (des < 0) { 5791 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 5792 } 5793 5794 width = des; 5795 } else { 5796 width = boring.width; 5797 } 5798 5799 final Drawables dr = mDrawables; 5800 if (dr != null) { 5801 width = Math.max(width, dr.mDrawableWidthTop); 5802 width = Math.max(width, dr.mDrawableWidthBottom); 5803 } 5804 5805 if (mHint != null) { 5806 int hintDes = -1; 5807 int hintWidth; 5808 5809 if (mHintLayout != null && mEllipsize == null) { 5810 hintDes = desired(mHintLayout); 5811 } 5812 5813 if (hintDes < 0) { 5814 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 5815 if (hintBoring != null) { 5816 mHintBoring = hintBoring; 5817 } 5818 } 5819 5820 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 5821 if (hintDes < 0) { 5822 hintDes = (int) FloatMath.ceil( 5823 Layout.getDesiredWidth(mHint, mTextPaint)); 5824 } 5825 5826 hintWidth = hintDes; 5827 } else { 5828 hintWidth = hintBoring.width; 5829 } 5830 5831 if (hintWidth > width) { 5832 width = hintWidth; 5833 } 5834 } 5835 5836 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 5837 5838 if (mMaxWidthMode == EMS) { 5839 width = Math.min(width, mMaxWidth * getLineHeight()); 5840 } else { 5841 width = Math.min(width, mMaxWidth); 5842 } 5843 5844 if (mMinWidthMode == EMS) { 5845 width = Math.max(width, mMinWidth * getLineHeight()); 5846 } else { 5847 width = Math.max(width, mMinWidth); 5848 } 5849 5850 // Check against our minimum width 5851 width = Math.max(width, getSuggestedMinimumWidth()); 5852 5853 if (widthMode == MeasureSpec.AT_MOST) { 5854 width = Math.min(widthSize, width); 5855 } 5856 } 5857 5858 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5859 int unpaddedWidth = want; 5860 5861 if (mHorizontallyScrolling) want = VERY_WIDE; 5862 5863 int hintWant = want; 5864 int hintWidth = mHintLayout == null ? hintWant : mHintLayout.getWidth(); 5865 5866 if (mLayout == null) { 5867 makeNewLayout(want, hintWant, boring, hintBoring, 5868 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5869 } else if ((mLayout.getWidth() != want) || (hintWidth != hintWant) || 5870 (mLayout.getEllipsizedWidth() != 5871 width - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 5872 if (mHint == null && mEllipsize == null && 5873 want > mLayout.getWidth() && 5874 (mLayout instanceof BoringLayout || 5875 (fromexisting && des >= 0 && des <= want))) { 5876 mLayout.increaseWidthTo(want); 5877 } else { 5878 makeNewLayout(want, hintWant, boring, hintBoring, 5879 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5880 } 5881 } else { 5882 // Width has not changed. 5883 } 5884 5885 if (heightMode == MeasureSpec.EXACTLY) { 5886 // Parent has told us how big to be. So be it. 5887 height = heightSize; 5888 mDesiredHeightAtMeasure = -1; 5889 } else { 5890 int desired = getDesiredHeight(); 5891 5892 height = desired; 5893 mDesiredHeightAtMeasure = desired; 5894 5895 if (heightMode == MeasureSpec.AT_MOST) { 5896 height = Math.min(desired, heightSize); 5897 } 5898 } 5899 5900 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 5901 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 5902 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 5903 } 5904 5905 /* 5906 * We didn't let makeNewLayout() register to bring the cursor into view, 5907 * so do it here if there is any possibility that it is needed. 5908 */ 5909 if (mMovement != null || 5910 mLayout.getWidth() > unpaddedWidth || 5911 mLayout.getHeight() > unpaddedHeight) { 5912 registerForPreDraw(); 5913 } else { 5914 scrollTo(0, 0); 5915 } 5916 5917 setMeasuredDimension(width, height); 5918 } 5919 5920 private int getDesiredHeight() { 5921 return Math.max( 5922 getDesiredHeight(mLayout, true), 5923 getDesiredHeight(mHintLayout, mEllipsize != null)); 5924 } 5925 5926 private int getDesiredHeight(Layout layout, boolean cap) { 5927 if (layout == null) { 5928 return 0; 5929 } 5930 5931 int linecount = layout.getLineCount(); 5932 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 5933 int desired = layout.getLineTop(linecount); 5934 5935 final Drawables dr = mDrawables; 5936 if (dr != null) { 5937 desired = Math.max(desired, dr.mDrawableHeightLeft); 5938 desired = Math.max(desired, dr.mDrawableHeightRight); 5939 } 5940 5941 desired += pad; 5942 layout.setMaximumVisibleLineCount(0); 5943 5944 if (mMaxMode == LINES) { 5945 /* 5946 * Don't cap the hint to a certain number of lines. 5947 * (Do cap it, though, if we have a maximum pixel height.) 5948 */ 5949 if (cap) { 5950 if (linecount > mMaximum) { 5951 layout.setMaximumVisibleLineCount(mMaximum); 5952 desired = layout.getLineTop(mMaximum); 5953 5954 if (dr != null) { 5955 desired = Math.max(desired, dr.mDrawableHeightLeft); 5956 desired = Math.max(desired, dr.mDrawableHeightRight); 5957 } 5958 5959 desired += pad; 5960 linecount = mMaximum; 5961 } 5962 } 5963 } else { 5964 desired = Math.min(desired, mMaximum); 5965 } 5966 5967 if (mMinMode == LINES) { 5968 if (linecount < mMinimum) { 5969 desired += getLineHeight() * (mMinimum - linecount); 5970 } 5971 } else { 5972 desired = Math.max(desired, mMinimum); 5973 } 5974 5975 // Check against our minimum height 5976 desired = Math.max(desired, getSuggestedMinimumHeight()); 5977 5978 return desired; 5979 } 5980 5981 /** 5982 * Check whether a change to the existing text layout requires a 5983 * new view layout. 5984 */ 5985 private void checkForResize() { 5986 boolean sizeChanged = false; 5987 5988 if (mLayout != null) { 5989 // Check if our width changed 5990 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 5991 sizeChanged = true; 5992 invalidate(); 5993 } 5994 5995 // Check if our height changed 5996 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 5997 int desiredHeight = getDesiredHeight(); 5998 5999 if (desiredHeight != this.getHeight()) { 6000 sizeChanged = true; 6001 } 6002 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 6003 if (mDesiredHeightAtMeasure >= 0) { 6004 int desiredHeight = getDesiredHeight(); 6005 6006 if (desiredHeight != mDesiredHeightAtMeasure) { 6007 sizeChanged = true; 6008 } 6009 } 6010 } 6011 } 6012 6013 if (sizeChanged) { 6014 requestLayout(); 6015 // caller will have already invalidated 6016 } 6017 } 6018 6019 /** 6020 * Check whether entirely new text requires a new view layout 6021 * or merely a new text layout. 6022 */ 6023 private void checkForRelayout() { 6024 // If we have a fixed width, we can just swap in a new text layout 6025 // if the text height stays the same or if the view height is fixed. 6026 6027 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 6028 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 6029 (mHint == null || mHintLayout != null) && 6030 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 6031 // Static width, so try making a new text layout. 6032 6033 int oldht = mLayout.getHeight(); 6034 int want = mLayout.getWidth(); 6035 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 6036 6037 /* 6038 * No need to bring the text into view, since the size is not 6039 * changing (unless we do the requestLayout(), in which case it 6040 * will happen at measure). 6041 */ 6042 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 6043 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 6044 false); 6045 6046 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 6047 // In a fixed-height view, so use our new text layout. 6048 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 6049 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 6050 invalidate(); 6051 return; 6052 } 6053 6054 // Dynamic height, but height has stayed the same, 6055 // so use our new text layout. 6056 if (mLayout.getHeight() == oldht && 6057 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 6058 invalidate(); 6059 return; 6060 } 6061 } 6062 6063 // We lose: the height has changed and we have a dynamic height. 6064 // Request a new view layout using our new text layout. 6065 requestLayout(); 6066 invalidate(); 6067 } else { 6068 // Dynamic width, so we have no choice but to request a new 6069 // view layout with a new text layout. 6070 6071 nullLayouts(); 6072 requestLayout(); 6073 invalidate(); 6074 } 6075 } 6076 6077 /** 6078 * Returns true if anything changed. 6079 */ 6080 private boolean bringTextIntoView() { 6081 int line = 0; 6082 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6083 line = mLayout.getLineCount() - 1; 6084 } 6085 6086 Layout.Alignment a = mLayout.getParagraphAlignment(line); 6087 int dir = mLayout.getParagraphDirection(line); 6088 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6089 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6090 int ht = mLayout.getHeight(); 6091 6092 int scrollx, scrolly; 6093 6094 if (a == Layout.Alignment.ALIGN_CENTER) { 6095 /* 6096 * Keep centered if possible, or, if it is too wide to fit, 6097 * keep leading edge in view. 6098 */ 6099 6100 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6101 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6102 6103 if (right - left < hspace) { 6104 scrollx = (right + left) / 2 - hspace / 2; 6105 } else { 6106 if (dir < 0) { 6107 scrollx = right - hspace; 6108 } else { 6109 scrollx = left; 6110 } 6111 } 6112 } else if (a == Layout.Alignment.ALIGN_NORMAL) { 6113 /* 6114 * Keep leading edge in view. 6115 */ 6116 6117 if (dir < 0) { 6118 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6119 scrollx = right - hspace; 6120 } else { 6121 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6122 } 6123 } else /* a == Layout.Alignment.ALIGN_OPPOSITE */ { 6124 /* 6125 * Keep trailing edge in view. 6126 */ 6127 6128 if (dir < 0) { 6129 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6130 } else { 6131 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6132 scrollx = right - hspace; 6133 } 6134 } 6135 6136 if (ht < vspace) { 6137 scrolly = 0; 6138 } else { 6139 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6140 scrolly = ht - vspace; 6141 } else { 6142 scrolly = 0; 6143 } 6144 } 6145 6146 if (scrollx != mScrollX || scrolly != mScrollY) { 6147 scrollTo(scrollx, scrolly); 6148 return true; 6149 } else { 6150 return false; 6151 } 6152 } 6153 6154 /** 6155 * Move the point, specified by the offset, into the view if it is needed. 6156 * This has to be called after layout. Returns true if anything changed. 6157 */ 6158 public boolean bringPointIntoView(int offset) { 6159 boolean changed = false; 6160 6161 int line = mLayout.getLineForOffset(offset); 6162 6163 // FIXME: Is it okay to truncate this, or should we round? 6164 final int x = (int)mLayout.getPrimaryHorizontal(offset); 6165 final int top = mLayout.getLineTop(line); 6166 final int bottom = mLayout.getLineTop(line + 1); 6167 6168 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6169 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6170 int ht = mLayout.getHeight(); 6171 6172 int grav; 6173 6174 switch (mLayout.getParagraphAlignment(line)) { 6175 case ALIGN_NORMAL: 6176 grav = 1; 6177 break; 6178 6179 case ALIGN_OPPOSITE: 6180 grav = -1; 6181 break; 6182 6183 default: 6184 grav = 0; 6185 } 6186 6187 grav *= mLayout.getParagraphDirection(line); 6188 6189 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6190 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6191 6192 int hslack = (bottom - top) / 2; 6193 int vslack = hslack; 6194 6195 if (vslack > vspace / 4) 6196 vslack = vspace / 4; 6197 if (hslack > hspace / 4) 6198 hslack = hspace / 4; 6199 6200 int hs = mScrollX; 6201 int vs = mScrollY; 6202 6203 if (top - vs < vslack) 6204 vs = top - vslack; 6205 if (bottom - vs > vspace - vslack) 6206 vs = bottom - (vspace - vslack); 6207 if (ht - vs < vspace) 6208 vs = ht - vspace; 6209 if (0 - vs > 0) 6210 vs = 0; 6211 6212 if (grav != 0) { 6213 if (x - hs < hslack) { 6214 hs = x - hslack; 6215 } 6216 if (x - hs > hspace - hslack) { 6217 hs = x - (hspace - hslack); 6218 } 6219 } 6220 6221 if (grav < 0) { 6222 if (left - hs > 0) 6223 hs = left; 6224 if (right - hs < hspace) 6225 hs = right - hspace; 6226 } else if (grav > 0) { 6227 if (right - hs < hspace) 6228 hs = right - hspace; 6229 if (left - hs > 0) 6230 hs = left; 6231 } else /* grav == 0 */ { 6232 if (right - left <= hspace) { 6233 /* 6234 * If the entire text fits, center it exactly. 6235 */ 6236 hs = left - (hspace - (right - left)) / 2; 6237 } else if (x > right - hslack) { 6238 /* 6239 * If we are near the right edge, keep the right edge 6240 * at the edge of the view. 6241 */ 6242 hs = right - hspace; 6243 } else if (x < left + hslack) { 6244 /* 6245 * If we are near the left edge, keep the left edge 6246 * at the edge of the view. 6247 */ 6248 hs = left; 6249 } else if (left > hs) { 6250 /* 6251 * Is there whitespace visible at the left? Fix it if so. 6252 */ 6253 hs = left; 6254 } else if (right < hs + hspace) { 6255 /* 6256 * Is there whitespace visible at the right? Fix it if so. 6257 */ 6258 hs = right - hspace; 6259 } else { 6260 /* 6261 * Otherwise, float as needed. 6262 */ 6263 if (x - hs < hslack) { 6264 hs = x - hslack; 6265 } 6266 if (x - hs > hspace - hslack) { 6267 hs = x - (hspace - hslack); 6268 } 6269 } 6270 } 6271 6272 if (hs != mScrollX || vs != mScrollY) { 6273 if (mScroller == null) { 6274 scrollTo(hs, vs); 6275 } else { 6276 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 6277 int dx = hs - mScrollX; 6278 int dy = vs - mScrollY; 6279 6280 if (duration > ANIMATED_SCROLL_GAP) { 6281 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 6282 awakenScrollBars(mScroller.getDuration()); 6283 invalidate(); 6284 } else { 6285 if (!mScroller.isFinished()) { 6286 mScroller.abortAnimation(); 6287 } 6288 6289 scrollBy(dx, dy); 6290 } 6291 6292 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 6293 } 6294 6295 changed = true; 6296 } 6297 6298 if (isFocused()) { 6299 // This offsets because getInterestingRect() is in terms of 6300 // viewport coordinates, but requestRectangleOnScreen() 6301 // is in terms of content coordinates. 6302 6303 Rect r = new Rect(x, top, x + 1, bottom); 6304 getInterestingRect(r, line); 6305 r.offset(mScrollX, mScrollY); 6306 6307 if (requestRectangleOnScreen(r)) { 6308 changed = true; 6309 } 6310 } 6311 6312 return changed; 6313 } 6314 6315 /** 6316 * Move the cursor, if needed, so that it is at an offset that is visible 6317 * to the user. This will not move the cursor if it represents more than 6318 * one character (a selection range). This will only work if the 6319 * TextView contains spannable text; otherwise it will do nothing. 6320 * 6321 * @return True if the cursor was actually moved, false otherwise. 6322 */ 6323 public boolean moveCursorToVisibleOffset() { 6324 if (!(mText instanceof Spannable)) { 6325 return false; 6326 } 6327 int start = getSelectionStart(); 6328 int end = getSelectionEnd(); 6329 if (start != end) { 6330 return false; 6331 } 6332 6333 // First: make sure the line is visible on screen: 6334 6335 int line = mLayout.getLineForOffset(start); 6336 6337 final int top = mLayout.getLineTop(line); 6338 final int bottom = mLayout.getLineTop(line + 1); 6339 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6340 int vslack = (bottom - top) / 2; 6341 if (vslack > vspace / 4) 6342 vslack = vspace / 4; 6343 final int vs = mScrollY; 6344 6345 if (top < (vs+vslack)) { 6346 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 6347 } else if (bottom > (vspace+vs-vslack)) { 6348 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 6349 } 6350 6351 // Next: make sure the character is visible on screen: 6352 6353 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6354 final int hs = mScrollX; 6355 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 6356 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 6357 6358 // line might contain bidirectional text 6359 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 6360 final int highChar = leftChar > rightChar ? leftChar : rightChar; 6361 6362 int newStart = start; 6363 if (newStart < lowChar) { 6364 newStart = lowChar; 6365 } else if (newStart > highChar) { 6366 newStart = highChar; 6367 } 6368 6369 if (newStart != start) { 6370 Selection.setSelection((Spannable)mText, newStart); 6371 return true; 6372 } 6373 6374 return false; 6375 } 6376 6377 @Override 6378 public void computeScroll() { 6379 if (mScroller != null) { 6380 if (mScroller.computeScrollOffset()) { 6381 mScrollX = mScroller.getCurrX(); 6382 mScrollY = mScroller.getCurrY(); 6383 invalidateParentCaches(); 6384 postInvalidate(); // So we draw again 6385 } 6386 } 6387 } 6388 6389 private void getInterestingRect(Rect r, int line) { 6390 convertFromViewportToContentCoordinates(r); 6391 6392 // Rectangle can can be expanded on first and last line to take 6393 // padding into account. 6394 // TODO Take left/right padding into account too? 6395 if (line == 0) r.top -= getExtendedPaddingTop(); 6396 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 6397 } 6398 6399 private void convertFromViewportToContentCoordinates(Rect r) { 6400 final int horizontalOffset = viewportToContentHorizontalOffset(); 6401 r.left += horizontalOffset; 6402 r.right += horizontalOffset; 6403 6404 final int verticalOffset = viewportToContentVerticalOffset(); 6405 r.top += verticalOffset; 6406 r.bottom += verticalOffset; 6407 } 6408 6409 private int viewportToContentHorizontalOffset() { 6410 return getCompoundPaddingLeft() - mScrollX; 6411 } 6412 6413 private int viewportToContentVerticalOffset() { 6414 int offset = getExtendedPaddingTop() - mScrollY; 6415 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 6416 offset += getVerticalOffset(false); 6417 } 6418 return offset; 6419 } 6420 6421 @Override 6422 public void debug(int depth) { 6423 super.debug(depth); 6424 6425 String output = debugIndent(depth); 6426 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 6427 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 6428 + "} "; 6429 6430 if (mText != null) { 6431 6432 output += "mText=\"" + mText + "\" "; 6433 if (mLayout != null) { 6434 output += "mLayout width=" + mLayout.getWidth() 6435 + " height=" + mLayout.getHeight(); 6436 } 6437 } else { 6438 output += "mText=NULL"; 6439 } 6440 Log.d(VIEW_LOG_TAG, output); 6441 } 6442 6443 /** 6444 * Convenience for {@link Selection#getSelectionStart}. 6445 */ 6446 @ViewDebug.ExportedProperty(category = "text") 6447 public int getSelectionStart() { 6448 return Selection.getSelectionStart(getText()); 6449 } 6450 6451 /** 6452 * Convenience for {@link Selection#getSelectionEnd}. 6453 */ 6454 @ViewDebug.ExportedProperty(category = "text") 6455 public int getSelectionEnd() { 6456 return Selection.getSelectionEnd(getText()); 6457 } 6458 6459 /** 6460 * Return true iff there is a selection inside this text view. 6461 */ 6462 public boolean hasSelection() { 6463 final int selectionStart = getSelectionStart(); 6464 final int selectionEnd = getSelectionEnd(); 6465 6466 return selectionStart >= 0 && selectionStart != selectionEnd; 6467 } 6468 6469 /** 6470 * Sets the properties of this field (lines, horizontally scrolling, 6471 * transformation method) to be for a single-line input. 6472 * 6473 * @attr ref android.R.styleable#TextView_singleLine 6474 */ 6475 public void setSingleLine() { 6476 setSingleLine(true); 6477 } 6478 6479 /** 6480 * If true, sets the properties of this field (number of lines, horizontally scrolling, 6481 * transformation method) to be for a single-line input; if false, restores these to the default 6482 * conditions. 6483 * 6484 * Note that the default conditions are not necessarily those that were in effect prior this 6485 * method, and you may want to reset these properties to your custom values. 6486 * 6487 * @attr ref android.R.styleable#TextView_singleLine 6488 */ 6489 @android.view.RemotableViewMethod 6490 public void setSingleLine(boolean singleLine) { 6491 // Could be used, but may break backward compatibility. 6492 // if (mSingleLine == singleLine) return; 6493 setInputTypeSingleLine(singleLine); 6494 applySingleLine(singleLine, true, true); 6495 } 6496 6497 /** 6498 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 6499 * @param singleLine 6500 */ 6501 private void setInputTypeSingleLine(boolean singleLine) { 6502 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 6503 if (singleLine) { 6504 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6505 } else { 6506 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6507 } 6508 } 6509 } 6510 6511 private void applySingleLine(boolean singleLine, boolean applyTransformation, 6512 boolean changeMaxLines) { 6513 mSingleLine = singleLine; 6514 if (singleLine) { 6515 setLines(1); 6516 setHorizontallyScrolling(true); 6517 if (applyTransformation) { 6518 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 6519 } 6520 } else { 6521 if (changeMaxLines) { 6522 setMaxLines(Integer.MAX_VALUE); 6523 } 6524 setHorizontallyScrolling(false); 6525 if (applyTransformation) { 6526 setTransformationMethod(null); 6527 } 6528 } 6529 } 6530 6531 /** 6532 * Causes words in the text that are longer than the view is wide 6533 * to be ellipsized instead of broken in the middle. You may also 6534 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 6535 * to constrain the text to a single line. Use <code>null</code> 6536 * to turn off ellipsizing. 6537 * 6538 * @attr ref android.R.styleable#TextView_ellipsize 6539 */ 6540 public void setEllipsize(TextUtils.TruncateAt where) { 6541 mEllipsize = where; 6542 6543 if (mLayout != null) { 6544 nullLayouts(); 6545 requestLayout(); 6546 invalidate(); 6547 } 6548 } 6549 6550 /** 6551 * Sets how many times to repeat the marquee animation. Only applied if the 6552 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 6553 * 6554 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 6555 */ 6556 public void setMarqueeRepeatLimit(int marqueeLimit) { 6557 mMarqueeRepeatLimit = marqueeLimit; 6558 } 6559 6560 /** 6561 * Returns where, if anywhere, words that are longer than the view 6562 * is wide should be ellipsized. 6563 */ 6564 @ViewDebug.ExportedProperty 6565 public TextUtils.TruncateAt getEllipsize() { 6566 return mEllipsize; 6567 } 6568 6569 /** 6570 * Set the TextView so that when it takes focus, all the text is 6571 * selected. 6572 * 6573 * @attr ref android.R.styleable#TextView_selectAllOnFocus 6574 */ 6575 @android.view.RemotableViewMethod 6576 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 6577 mSelectAllOnFocus = selectAllOnFocus; 6578 6579 if (selectAllOnFocus && !(mText instanceof Spannable)) { 6580 setText(mText, BufferType.SPANNABLE); 6581 } 6582 } 6583 6584 /** 6585 * Set whether the cursor is visible. The default is true. 6586 * 6587 * @attr ref android.R.styleable#TextView_cursorVisible 6588 */ 6589 @android.view.RemotableViewMethod 6590 public void setCursorVisible(boolean visible) { 6591 mCursorVisible = visible; 6592 invalidate(); 6593 6594 makeBlink(); 6595 6596 // InsertionPointCursorController depends on mCursorVisible 6597 prepareCursorControllers(); 6598 } 6599 6600 private boolean isCursorVisible() { 6601 return mCursorVisible && isTextEditable(); 6602 } 6603 6604 private boolean canMarquee() { 6605 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6606 return width > 0 && mLayout.getLineWidth(0) > width; 6607 } 6608 6609 private void startMarquee() { 6610 // Do not ellipsize EditText 6611 if (mInput != null) return; 6612 6613 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 6614 return; 6615 } 6616 6617 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 6618 getLineCount() == 1 && canMarquee()) { 6619 6620 if (mMarquee == null) mMarquee = new Marquee(this); 6621 mMarquee.start(mMarqueeRepeatLimit); 6622 } 6623 } 6624 6625 private void stopMarquee() { 6626 if (mMarquee != null && !mMarquee.isStopped()) { 6627 mMarquee.stop(); 6628 } 6629 } 6630 6631 private void startStopMarquee(boolean start) { 6632 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6633 if (start) { 6634 startMarquee(); 6635 } else { 6636 stopMarquee(); 6637 } 6638 } 6639 } 6640 6641 private static final class Marquee extends Handler { 6642 // TODO: Add an option to configure this 6643 private static final float MARQUEE_DELTA_MAX = 0.07f; 6644 private static final int MARQUEE_DELAY = 1200; 6645 private static final int MARQUEE_RESTART_DELAY = 1200; 6646 private static final int MARQUEE_RESOLUTION = 1000 / 30; 6647 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 6648 6649 private static final byte MARQUEE_STOPPED = 0x0; 6650 private static final byte MARQUEE_STARTING = 0x1; 6651 private static final byte MARQUEE_RUNNING = 0x2; 6652 6653 private static final int MESSAGE_START = 0x1; 6654 private static final int MESSAGE_TICK = 0x2; 6655 private static final int MESSAGE_RESTART = 0x3; 6656 6657 private final WeakReference<TextView> mView; 6658 6659 private byte mStatus = MARQUEE_STOPPED; 6660 private final float mScrollUnit; 6661 private float mMaxScroll; 6662 float mMaxFadeScroll; 6663 private float mGhostStart; 6664 private float mGhostOffset; 6665 private float mFadeStop; 6666 private int mRepeatLimit; 6667 6668 float mScroll; 6669 6670 Marquee(TextView v) { 6671 final float density = v.getContext().getResources().getDisplayMetrics().density; 6672 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 6673 mView = new WeakReference<TextView>(v); 6674 } 6675 6676 @Override 6677 public void handleMessage(Message msg) { 6678 switch (msg.what) { 6679 case MESSAGE_START: 6680 mStatus = MARQUEE_RUNNING; 6681 tick(); 6682 break; 6683 case MESSAGE_TICK: 6684 tick(); 6685 break; 6686 case MESSAGE_RESTART: 6687 if (mStatus == MARQUEE_RUNNING) { 6688 if (mRepeatLimit >= 0) { 6689 mRepeatLimit--; 6690 } 6691 start(mRepeatLimit); 6692 } 6693 break; 6694 } 6695 } 6696 6697 void tick() { 6698 if (mStatus != MARQUEE_RUNNING) { 6699 return; 6700 } 6701 6702 removeMessages(MESSAGE_TICK); 6703 6704 final TextView textView = mView.get(); 6705 if (textView != null && (textView.isFocused() || textView.isSelected())) { 6706 mScroll += mScrollUnit; 6707 if (mScroll > mMaxScroll) { 6708 mScroll = mMaxScroll; 6709 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 6710 } else { 6711 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 6712 } 6713 textView.invalidate(); 6714 } 6715 } 6716 6717 void stop() { 6718 mStatus = MARQUEE_STOPPED; 6719 removeMessages(MESSAGE_START); 6720 removeMessages(MESSAGE_RESTART); 6721 removeMessages(MESSAGE_TICK); 6722 resetScroll(); 6723 } 6724 6725 private void resetScroll() { 6726 mScroll = 0.0f; 6727 final TextView textView = mView.get(); 6728 if (textView != null) textView.invalidate(); 6729 } 6730 6731 void start(int repeatLimit) { 6732 if (repeatLimit == 0) { 6733 stop(); 6734 return; 6735 } 6736 mRepeatLimit = repeatLimit; 6737 final TextView textView = mView.get(); 6738 if (textView != null && textView.mLayout != null) { 6739 mStatus = MARQUEE_STARTING; 6740 mScroll = 0.0f; 6741 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 6742 textView.getCompoundPaddingRight(); 6743 final float lineWidth = textView.mLayout.getLineWidth(0); 6744 final float gap = textWidth / 3.0f; 6745 mGhostStart = lineWidth - textWidth + gap; 6746 mMaxScroll = mGhostStart + textWidth; 6747 mGhostOffset = lineWidth + gap; 6748 mFadeStop = lineWidth + textWidth / 6.0f; 6749 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 6750 6751 textView.invalidate(); 6752 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 6753 } 6754 } 6755 6756 float getGhostOffset() { 6757 return mGhostOffset; 6758 } 6759 6760 boolean shouldDrawLeftFade() { 6761 return mScroll <= mFadeStop; 6762 } 6763 6764 boolean shouldDrawGhost() { 6765 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 6766 } 6767 6768 boolean isRunning() { 6769 return mStatus == MARQUEE_RUNNING; 6770 } 6771 6772 boolean isStopped() { 6773 return mStatus == MARQUEE_STOPPED; 6774 } 6775 } 6776 6777 /** 6778 * This method is called when the text is changed, in case any 6779 * subclasses would like to know. 6780 * 6781 * @param text The text the TextView is displaying. 6782 * @param start The offset of the start of the range of the text 6783 * that was modified. 6784 * @param before The offset of the former end of the range of the 6785 * text that was modified. If text was simply inserted, 6786 * this will be the same as <code>start</code>. 6787 * If text was replaced with new text or deleted, the 6788 * length of the old text was <code>before-start</code>. 6789 * @param after The offset of the end of the range of the text 6790 * that was modified. If text was simply deleted, 6791 * this will be the same as <code>start</code>. 6792 * If text was replaced with new text or inserted, 6793 * the length of the new text is <code>after-start</code>. 6794 */ 6795 protected void onTextChanged(CharSequence text, 6796 int start, int before, int after) { 6797 } 6798 6799 /** 6800 * This method is called when the selection has changed, in case any 6801 * subclasses would like to know. 6802 * 6803 * @param selStart The new selection start location. 6804 * @param selEnd The new selection end location. 6805 */ 6806 protected void onSelectionChanged(int selStart, int selEnd) { 6807 } 6808 6809 /** 6810 * Adds a TextWatcher to the list of those whose methods are called 6811 * whenever this TextView's text changes. 6812 * <p> 6813 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 6814 * not called after {@link #setText} calls. Now, doing {@link #setText} 6815 * if there are any text changed listeners forces the buffer type to 6816 * Editable if it would not otherwise be and does call this method. 6817 */ 6818 public void addTextChangedListener(TextWatcher watcher) { 6819 if (mListeners == null) { 6820 mListeners = new ArrayList<TextWatcher>(); 6821 } 6822 6823 mListeners.add(watcher); 6824 } 6825 6826 /** 6827 * Removes the specified TextWatcher from the list of those whose 6828 * methods are called 6829 * whenever this TextView's text changes. 6830 */ 6831 public void removeTextChangedListener(TextWatcher watcher) { 6832 if (mListeners != null) { 6833 int i = mListeners.indexOf(watcher); 6834 6835 if (i >= 0) { 6836 mListeners.remove(i); 6837 } 6838 } 6839 } 6840 6841 private void sendBeforeTextChanged(CharSequence text, int start, int before, 6842 int after) { 6843 if (mListeners != null) { 6844 final ArrayList<TextWatcher> list = mListeners; 6845 final int count = list.size(); 6846 for (int i = 0; i < count; i++) { 6847 list.get(i).beforeTextChanged(text, start, before, after); 6848 } 6849 } 6850 } 6851 6852 /** 6853 * Not private so it can be called from an inner class without going 6854 * through a thunk. 6855 */ 6856 void sendOnTextChanged(CharSequence text, int start, int before, 6857 int after) { 6858 if (mListeners != null) { 6859 final ArrayList<TextWatcher> list = mListeners; 6860 final int count = list.size(); 6861 for (int i = 0; i < count; i++) { 6862 list.get(i).onTextChanged(text, start, before, after); 6863 } 6864 } 6865 } 6866 6867 /** 6868 * Not private so it can be called from an inner class without going 6869 * through a thunk. 6870 */ 6871 void sendAfterTextChanged(Editable text) { 6872 if (mListeners != null) { 6873 final ArrayList<TextWatcher> list = mListeners; 6874 final int count = list.size(); 6875 for (int i = 0; i < count; i++) { 6876 list.get(i).afterTextChanged(text); 6877 } 6878 } 6879 } 6880 6881 /** 6882 * Not private so it can be called from an inner class without going 6883 * through a thunk. 6884 */ 6885 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 6886 final InputMethodState ims = mInputMethodState; 6887 if (ims == null || ims.mBatchEditNesting == 0) { 6888 updateAfterEdit(); 6889 } 6890 if (ims != null) { 6891 ims.mContentChanged = true; 6892 if (ims.mChangedStart < 0) { 6893 ims.mChangedStart = start; 6894 ims.mChangedEnd = start+before; 6895 } else { 6896 ims.mChangedStart = Math.min(ims.mChangedStart, start); 6897 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 6898 } 6899 ims.mChangedDelta += after-before; 6900 } 6901 6902 sendOnTextChanged(buffer, start, before, after); 6903 onTextChanged(buffer, start, before, after); 6904 6905 // Hide the controllers if the amount of content changed 6906 if (before != after) { 6907 hideControllers(); 6908 } 6909 } 6910 6911 /** 6912 * Not private so it can be called from an inner class without going 6913 * through a thunk. 6914 */ 6915 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 6916 // XXX Make the start and end move together if this ends up 6917 // spending too much time invalidating. 6918 6919 boolean selChanged = false; 6920 int newSelStart=-1, newSelEnd=-1; 6921 6922 final InputMethodState ims = mInputMethodState; 6923 6924 if (what == Selection.SELECTION_END) { 6925 mHighlightPathBogus = true; 6926 selChanged = true; 6927 newSelEnd = newStart; 6928 6929 if (!isFocused()) { 6930 mSelectionMoved = true; 6931 } 6932 6933 if (oldStart >= 0 || newStart >= 0) { 6934 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 6935 registerForPreDraw(); 6936 6937 if (isFocused()) { 6938 mShowCursor = SystemClock.uptimeMillis(); 6939 makeBlink(); 6940 } 6941 } 6942 } 6943 6944 if (what == Selection.SELECTION_START) { 6945 mHighlightPathBogus = true; 6946 selChanged = true; 6947 newSelStart = newStart; 6948 6949 if (!isFocused()) { 6950 mSelectionMoved = true; 6951 } 6952 6953 if (oldStart >= 0 || newStart >= 0) { 6954 int end = Selection.getSelectionEnd(buf); 6955 invalidateCursor(end, oldStart, newStart); 6956 } 6957 } 6958 6959 if (selChanged) { 6960 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 6961 if (newSelStart < 0) { 6962 newSelStart = Selection.getSelectionStart(buf); 6963 } 6964 if (newSelEnd < 0) { 6965 newSelEnd = Selection.getSelectionEnd(buf); 6966 } 6967 onSelectionChanged(newSelStart, newSelEnd); 6968 } 6969 } 6970 6971 if (what instanceof UpdateAppearance || 6972 what instanceof ParagraphStyle) { 6973 if (ims == null || ims.mBatchEditNesting == 0) { 6974 invalidate(); 6975 mHighlightPathBogus = true; 6976 checkForResize(); 6977 } else { 6978 ims.mContentChanged = true; 6979 } 6980 } 6981 6982 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 6983 mHighlightPathBogus = true; 6984 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 6985 ims.mSelectionModeChanged = true; 6986 } 6987 6988 if (Selection.getSelectionStart(buf) >= 0) { 6989 if (ims == null || ims.mBatchEditNesting == 0) { 6990 invalidateCursor(); 6991 } else { 6992 ims.mCursorChanged = true; 6993 } 6994 } 6995 } 6996 6997 if (what instanceof ParcelableSpan) { 6998 // If this is a span that can be sent to a remote process, 6999 // the current extract editor would be interested in it. 7000 if (ims != null && ims.mExtracting != null) { 7001 if (ims.mBatchEditNesting != 0) { 7002 if (oldStart >= 0) { 7003 if (ims.mChangedStart > oldStart) { 7004 ims.mChangedStart = oldStart; 7005 } 7006 if (ims.mChangedStart > oldEnd) { 7007 ims.mChangedStart = oldEnd; 7008 } 7009 } 7010 if (newStart >= 0) { 7011 if (ims.mChangedStart > newStart) { 7012 ims.mChangedStart = newStart; 7013 } 7014 if (ims.mChangedStart > newEnd) { 7015 ims.mChangedStart = newEnd; 7016 } 7017 } 7018 } else { 7019 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 7020 + oldStart + "-" + oldEnd + "," 7021 + newStart + "-" + newEnd + what); 7022 ims.mContentChanged = true; 7023 } 7024 } 7025 } 7026 } 7027 7028 private class ChangeWatcher 7029 implements TextWatcher, SpanWatcher { 7030 7031 private CharSequence mBeforeText; 7032 7033 public void beforeTextChanged(CharSequence buffer, int start, 7034 int before, int after) { 7035 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 7036 + " before=" + before + " after=" + after + ": " + buffer); 7037 7038 if (AccessibilityManager.getInstance(mContext).isEnabled() 7039 && !isPasswordInputType(mInputType) 7040 && !hasPasswordTransformationMethod()) { 7041 mBeforeText = buffer.toString(); 7042 } 7043 7044 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 7045 } 7046 7047 public void onTextChanged(CharSequence buffer, int start, 7048 int before, int after) { 7049 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 7050 + " before=" + before + " after=" + after + ": " + buffer); 7051 TextView.this.handleTextChanged(buffer, start, before, after); 7052 7053 if (AccessibilityManager.getInstance(mContext).isEnabled() && 7054 (isFocused() || isSelected() && 7055 isShown())) { 7056 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 7057 mBeforeText = null; 7058 } 7059 } 7060 7061 public void afterTextChanged(Editable buffer) { 7062 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 7063 TextView.this.sendAfterTextChanged(buffer); 7064 7065 if (MetaKeyKeyListener.getMetaState(buffer, 7066 MetaKeyKeyListener.META_SELECTING) != 0) { 7067 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 7068 } 7069 } 7070 7071 public void onSpanChanged(Spannable buf, 7072 Object what, int s, int e, int st, int en) { 7073 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 7074 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 7075 TextView.this.spanChange(buf, what, s, st, e, en); 7076 } 7077 7078 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 7079 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 7080 + " what=" + what + ": " + buf); 7081 TextView.this.spanChange(buf, what, -1, s, -1, e); 7082 } 7083 7084 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 7085 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 7086 + " what=" + what + ": " + buf); 7087 TextView.this.spanChange(buf, what, s, -1, e, -1); 7088 } 7089 } 7090 7091 private void makeBlink() { 7092 if (!isCursorVisible()) { 7093 if (mBlink != null) { 7094 mBlink.removeCallbacks(mBlink); 7095 } 7096 7097 return; 7098 } 7099 7100 if (mBlink == null) 7101 mBlink = new Blink(this); 7102 7103 mBlink.removeCallbacks(mBlink); 7104 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 7105 } 7106 7107 /** 7108 * @hide 7109 */ 7110 @Override 7111 public void dispatchFinishTemporaryDetach() { 7112 mDispatchTemporaryDetach = true; 7113 super.dispatchFinishTemporaryDetach(); 7114 mDispatchTemporaryDetach = false; 7115 } 7116 7117 @Override 7118 public void onStartTemporaryDetach() { 7119 super.onStartTemporaryDetach(); 7120 // Only track when onStartTemporaryDetach() is called directly, 7121 // usually because this instance is an editable field in a list 7122 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 7123 } 7124 7125 @Override 7126 public void onFinishTemporaryDetach() { 7127 super.onFinishTemporaryDetach(); 7128 // Only track when onStartTemporaryDetach() is called directly, 7129 // usually because this instance is an editable field in a list 7130 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 7131 } 7132 7133 @Override 7134 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 7135 if (mTemporaryDetach) { 7136 // If we are temporarily in the detach state, then do nothing. 7137 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7138 return; 7139 } 7140 7141 mShowCursor = SystemClock.uptimeMillis(); 7142 7143 ensureEndedBatchEdit(); 7144 7145 if (focused) { 7146 int selStart = getSelectionStart(); 7147 int selEnd = getSelectionEnd(); 7148 7149 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 7150 // mode for these, unless there was a specific selection already started. 7151 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 7152 selEnd == mText.length(); 7153 mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted; 7154 7155 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 7156 // If a tap was used to give focus to that view, move cursor at tap position. 7157 // Has to be done before onTakeFocus, which can be overloaded. 7158 final int lastTapPosition = getLastTapPosition(); 7159 if (lastTapPosition >= 0) { 7160 Selection.setSelection((Spannable) mText, lastTapPosition); 7161 } 7162 7163 if (mMovement != null) { 7164 mMovement.onTakeFocus(this, (Spannable) mText, direction); 7165 } 7166 7167 // The DecorView does not have focus when the 'Done' ExtractEditText button is 7168 // pressed. Since it is the ViewRoot's mView, it requests focus before 7169 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 7170 // This special case ensure that we keep current selection in that case. 7171 // It would be better to know why the DecorView does not have focus at that time. 7172 if (((this instanceof ExtractEditText) || mSelectionMoved) && 7173 selStart >= 0 && selEnd >= 0) { 7174 /* 7175 * Someone intentionally set the selection, so let them 7176 * do whatever it is that they wanted to do instead of 7177 * the default on-focus behavior. We reset the selection 7178 * here instead of just skipping the onTakeFocus() call 7179 * because some movement methods do something other than 7180 * just setting the selection in theirs and we still 7181 * need to go through that path. 7182 */ 7183 Selection.setSelection((Spannable) mText, selStart, selEnd); 7184 } 7185 7186 if (mSelectAllOnFocus) { 7187 selectAll(); 7188 } 7189 7190 mTouchFocusSelected = true; 7191 } 7192 7193 mFrozenWithFocus = false; 7194 mSelectionMoved = false; 7195 7196 if (mText instanceof Spannable) { 7197 Spannable sp = (Spannable) mText; 7198 MetaKeyKeyListener.resetMetaState(sp); 7199 } 7200 7201 makeBlink(); 7202 7203 if (mError != null) { 7204 showError(); 7205 } 7206 } else { 7207 if (mError != null) { 7208 hideError(); 7209 } 7210 // Don't leave us in the middle of a batch edit. 7211 onEndBatchEdit(); 7212 7213 hideInsertionPointCursorController(); 7214 if (this instanceof ExtractEditText) { 7215 // terminateTextSelectionMode removes selection, which we want to keep when 7216 // ExtractEditText goes out of focus. 7217 final int selStart = getSelectionStart(); 7218 final int selEnd = getSelectionEnd(); 7219 terminateSelectionActionMode(); 7220 Selection.setSelection((Spannable) mText, selStart, selEnd); 7221 } else { 7222 terminateSelectionActionMode(); 7223 } 7224 7225 // No need to create the controller 7226 if (mSelectionModifierCursorController != null) { 7227 mSelectionModifierCursorController.resetTouchOffsets(); 7228 } 7229 } 7230 7231 startStopMarquee(focused); 7232 7233 if (mTransformation != null) { 7234 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 7235 } 7236 7237 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7238 7239 // Performed after super.onFocusChanged so that this TextView is registered and can ask for 7240 // the IME. Showing the IME while focus is moved using the D-Pad is a bad idea, however this 7241 // does not happen in that case (using the arrows on a bluetooth keyboard). 7242 if (focused && isTextEditable()) { 7243 final InputMethodManager imm = InputMethodManager.peekInstance(); 7244 if (imm != null) imm.showSoftInput(this, 0); 7245 } 7246 } 7247 7248 private int getLastTapPosition() { 7249 // No need to create the controller at that point, no last tap position saved 7250 if (mSelectionModifierCursorController != null) { 7251 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 7252 if (lastTapPosition >= 0) { 7253 // Safety check, should not be possible. 7254 if (lastTapPosition > mText.length()) { 7255 Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs " 7256 + mText.length() + ")"); 7257 lastTapPosition = mText.length(); 7258 } 7259 return lastTapPosition; 7260 } 7261 } 7262 7263 return -1; 7264 } 7265 7266 @Override 7267 public void onWindowFocusChanged(boolean hasWindowFocus) { 7268 super.onWindowFocusChanged(hasWindowFocus); 7269 7270 if (hasWindowFocus) { 7271 if (mBlink != null) { 7272 mBlink.uncancel(); 7273 7274 if (isFocused()) { 7275 mShowCursor = SystemClock.uptimeMillis(); 7276 makeBlink(); 7277 } 7278 } 7279 } else { 7280 if (mBlink != null) { 7281 mBlink.cancel(); 7282 } 7283 // Don't leave us in the middle of a batch edit. 7284 onEndBatchEdit(); 7285 if (mInputContentType != null) { 7286 mInputContentType.enterDown = false; 7287 } 7288 hideControllers(); 7289 } 7290 7291 startStopMarquee(hasWindowFocus); 7292 } 7293 7294 @Override 7295 protected void onVisibilityChanged(View changedView, int visibility) { 7296 super.onVisibilityChanged(changedView, visibility); 7297 if (visibility != VISIBLE) { 7298 hideControllers(); 7299 } 7300 } 7301 7302 /** 7303 * Use {@link BaseInputConnection#removeComposingSpans 7304 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 7305 * state from this text view. 7306 */ 7307 public void clearComposingText() { 7308 if (mText instanceof Spannable) { 7309 BaseInputConnection.removeComposingSpans((Spannable)mText); 7310 } 7311 } 7312 7313 @Override 7314 public void setSelected(boolean selected) { 7315 boolean wasSelected = isSelected(); 7316 7317 super.setSelected(selected); 7318 7319 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7320 if (selected) { 7321 startMarquee(); 7322 } else { 7323 stopMarquee(); 7324 } 7325 } 7326 } 7327 7328 @Override 7329 public boolean onTouchEvent(MotionEvent event) { 7330 final int action = event.getActionMasked(); 7331 7332 if (hasInsertionController()) { 7333 getInsertionController().onTouchEvent(event); 7334 } 7335 if (hasSelectionController()) { 7336 getSelectionController().onTouchEvent(event); 7337 } 7338 7339 if (action == MotionEvent.ACTION_DOWN) { 7340 mLastDownPositionX = (int) event.getX(); 7341 mLastDownPositionY = (int) event.getY(); 7342 7343 // Reset this state; it will be re-set if super.onTouchEvent 7344 // causes focus to move to the view. 7345 mTouchFocusSelected = false; 7346 mIgnoreActionUpEvent = false; 7347 } 7348 7349 final boolean superResult = super.onTouchEvent(event); 7350 7351 /* 7352 * Don't handle the release after a long press, because it will 7353 * move the selection away from whatever the menu action was 7354 * trying to affect. 7355 */ 7356 if (mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 7357 mDiscardNextActionUp = false; 7358 return superResult; 7359 } 7360 7361 final boolean touchIsFinished = action == MotionEvent.ACTION_UP && !mIgnoreActionUpEvent && 7362 isFocused(); 7363 7364 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 7365 && mText instanceof Spannable && mLayout != null) { 7366 boolean handled = false; 7367 7368 final int oldScrollX = mScrollX; 7369 final int oldScrollY = mScrollY; 7370 7371 if (mMovement != null) { 7372 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 7373 } 7374 7375 if (mLinksClickable && mAutoLinkMask != 0 && mTextIsSelectable && touchIsFinished) { 7376 // The LinkMovementMethod which should handle taps on links has not been installed 7377 // to support text selection. We reproduce its behavior here to open links. 7378 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 7379 getSelectionEnd(), ClickableSpan.class); 7380 7381 if (links.length != 0) { 7382 links[0].onClick(this); 7383 handled = true; 7384 } 7385 } 7386 7387 if (isTextEditable() || mTextIsSelectable) { 7388 if (mScrollX != oldScrollX || mScrollY != oldScrollY) { 7389 // Hide insertion anchor while scrolling. Leave selection. 7390 hideInsertionPointCursorController(); 7391 // No need to create the controller, since there is nothing to update. 7392 if (mSelectionModifierCursorController != null && 7393 mSelectionModifierCursorController.isShowing()) { 7394 mSelectionModifierCursorController.updatePosition(); 7395 } 7396 } 7397 7398 if (touchIsFinished) { 7399 // Show the IME, except when selecting in read-only text. 7400 if (!mTextIsSelectable) { 7401 final InputMethodManager imm = InputMethodManager.peekInstance(); 7402 handled |= imm != null && imm.showSoftInput(this, 0); 7403 } 7404 7405 7406 boolean selectAllGotFocus = mSelectAllOnFocus && didTouchFocusSelect(); 7407 if (!selectAllGotFocus && hasSelection()) { 7408 startSelectionActionMode(); 7409 } else { 7410 stopSelectionActionMode(); 7411 if (hasInsertionController() && !selectAllGotFocus && mText.length() > 0) { 7412 getInsertionController().show(); 7413 } 7414 } 7415 } 7416 } 7417 7418 if (handled) { 7419 return true; 7420 } 7421 } 7422 7423 return superResult; 7424 } 7425 7426 private void prepareCursorControllers() { 7427 boolean windowSupportsHandles = false; 7428 7429 ViewGroup.LayoutParams params = getRootView().getLayoutParams(); 7430 if (params instanceof WindowManager.LayoutParams) { 7431 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 7432 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 7433 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 7434 } 7435 7436 mInsertionControllerEnabled = windowSupportsHandles && isCursorVisible() && mLayout != null; 7437 mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() && 7438 mLayout != null; 7439 7440 if (!mInsertionControllerEnabled) { 7441 hideInsertionPointCursorController(); 7442 if (mInsertionPointCursorController != null) { 7443 mInsertionPointCursorController.onDetached(); 7444 mInsertionPointCursorController = null; 7445 } 7446 } 7447 7448 if (!mSelectionControllerEnabled) { 7449 stopSelectionActionMode(); 7450 if (mSelectionModifierCursorController != null) { 7451 mSelectionModifierCursorController.onDetached(); 7452 mSelectionModifierCursorController = null; 7453 } 7454 } 7455 } 7456 7457 /** 7458 * @return True iff this TextView contains a text that can be edited, or if this is 7459 * a selectable TextView. 7460 */ 7461 private boolean isTextEditable() { 7462 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 7463 } 7464 7465 /** 7466 * Returns true, only while processing a touch gesture, if the initial 7467 * touch down event caused focus to move to the text view and as a result 7468 * its selection changed. Only valid while processing the touch gesture 7469 * of interest. 7470 */ 7471 public boolean didTouchFocusSelect() { 7472 return mTouchFocusSelected; 7473 } 7474 7475 @Override 7476 public void cancelLongPress() { 7477 super.cancelLongPress(); 7478 mIgnoreActionUpEvent = true; 7479 } 7480 7481 @Override 7482 public boolean onTrackballEvent(MotionEvent event) { 7483 if (mMovement != null && mText instanceof Spannable && 7484 mLayout != null) { 7485 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 7486 return true; 7487 } 7488 } 7489 7490 return super.onTrackballEvent(event); 7491 } 7492 7493 public void setScroller(Scroller s) { 7494 mScroller = s; 7495 } 7496 7497 private static class Blink extends Handler implements Runnable { 7498 private final WeakReference<TextView> mView; 7499 private boolean mCancelled; 7500 7501 public Blink(TextView v) { 7502 mView = new WeakReference<TextView>(v); 7503 } 7504 7505 public void run() { 7506 if (mCancelled) { 7507 return; 7508 } 7509 7510 removeCallbacks(Blink.this); 7511 7512 TextView tv = mView.get(); 7513 7514 if (tv != null && tv.isFocused()) { 7515 int st = tv.getSelectionStart(); 7516 int en = tv.getSelectionEnd(); 7517 7518 if (st == en && st >= 0 && en >= 0) { 7519 if (tv.mLayout != null) { 7520 tv.invalidateCursorPath(); 7521 } 7522 7523 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 7524 } 7525 } 7526 } 7527 7528 void cancel() { 7529 if (!mCancelled) { 7530 removeCallbacks(Blink.this); 7531 mCancelled = true; 7532 } 7533 } 7534 7535 void uncancel() { 7536 mCancelled = false; 7537 } 7538 } 7539 7540 @Override 7541 protected float getLeftFadingEdgeStrength() { 7542 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7543 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7544 if (mMarquee != null && !mMarquee.isStopped()) { 7545 final Marquee marquee = mMarquee; 7546 if (marquee.shouldDrawLeftFade()) { 7547 return marquee.mScroll / getHorizontalFadingEdgeLength(); 7548 } else { 7549 return 0.0f; 7550 } 7551 } else if (getLineCount() == 1) { 7552 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7553 case Gravity.LEFT: 7554 return 0.0f; 7555 case Gravity.RIGHT: 7556 return (mLayout.getLineRight(0) - (mRight - mLeft) - 7557 getCompoundPaddingLeft() - getCompoundPaddingRight() - 7558 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 7559 case Gravity.CENTER_HORIZONTAL: 7560 return 0.0f; 7561 } 7562 } 7563 } 7564 return super.getLeftFadingEdgeStrength(); 7565 } 7566 7567 @Override 7568 protected float getRightFadingEdgeStrength() { 7569 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7570 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7571 if (mMarquee != null && !mMarquee.isStopped()) { 7572 final Marquee marquee = mMarquee; 7573 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 7574 } else if (getLineCount() == 1) { 7575 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7576 case Gravity.LEFT: 7577 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 7578 getCompoundPaddingRight(); 7579 final float lineWidth = mLayout.getLineWidth(0); 7580 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 7581 case Gravity.RIGHT: 7582 return 0.0f; 7583 case Gravity.CENTER_HORIZONTAL: 7584 case Gravity.FILL_HORIZONTAL: 7585 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 7586 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 7587 getHorizontalFadingEdgeLength(); 7588 } 7589 } 7590 } 7591 return super.getRightFadingEdgeStrength(); 7592 } 7593 7594 @Override 7595 protected int computeHorizontalScrollRange() { 7596 if (mLayout != null) { 7597 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 7598 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 7599 } 7600 7601 return super.computeHorizontalScrollRange(); 7602 } 7603 7604 @Override 7605 protected int computeVerticalScrollRange() { 7606 if (mLayout != null) 7607 return mLayout.getHeight(); 7608 7609 return super.computeVerticalScrollRange(); 7610 } 7611 7612 @Override 7613 protected int computeVerticalScrollExtent() { 7614 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 7615 } 7616 7617 public enum BufferType { 7618 NORMAL, SPANNABLE, EDITABLE, 7619 } 7620 7621 /** 7622 * Returns the TextView_textColor attribute from the 7623 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 7624 * from the TextView_textAppearance attribute, if TextView_textColor 7625 * was not set directly. 7626 */ 7627 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 7628 ColorStateList colors; 7629 colors = attrs.getColorStateList(com.android.internal.R.styleable. 7630 TextView_textColor); 7631 7632 if (colors == null) { 7633 int ap = attrs.getResourceId(com.android.internal.R.styleable. 7634 TextView_textAppearance, -1); 7635 if (ap != -1) { 7636 TypedArray appearance; 7637 appearance = context.obtainStyledAttributes(ap, 7638 com.android.internal.R.styleable.TextAppearance); 7639 colors = appearance.getColorStateList(com.android.internal.R.styleable. 7640 TextAppearance_textColor); 7641 appearance.recycle(); 7642 } 7643 } 7644 7645 return colors; 7646 } 7647 7648 /** 7649 * Returns the default color from the TextView_textColor attribute 7650 * from the AttributeSet, if set, or the default color from the 7651 * TextAppearance_textColor from the TextView_textAppearance attribute, 7652 * if TextView_textColor was not set directly. 7653 */ 7654 public static int getTextColor(Context context, 7655 TypedArray attrs, 7656 int def) { 7657 ColorStateList colors = getTextColors(context, attrs); 7658 7659 if (colors == null) { 7660 return def; 7661 } else { 7662 return colors.getDefaultColor(); 7663 } 7664 } 7665 7666 @Override 7667 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 7668 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 7669 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 7670 switch (keyCode) { 7671 case KeyEvent.KEYCODE_A: 7672 if (canSelectText()) { 7673 return onTextContextMenuItem(ID_SELECT_ALL); 7674 } 7675 break; 7676 case KeyEvent.KEYCODE_X: 7677 if (canCut()) { 7678 return onTextContextMenuItem(ID_CUT); 7679 } 7680 break; 7681 case KeyEvent.KEYCODE_C: 7682 if (canCopy()) { 7683 return onTextContextMenuItem(ID_COPY); 7684 } 7685 break; 7686 case KeyEvent.KEYCODE_V: 7687 if (canPaste()) { 7688 return onTextContextMenuItem(ID_PASTE); 7689 } 7690 break; 7691 } 7692 } 7693 return super.onKeyShortcut(keyCode, event); 7694 } 7695 7696 /** 7697 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 7698 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 7699 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 7700 */ 7701 private boolean canSelectText() { 7702 return hasSelectionController() && mText.length() != 0; 7703 } 7704 7705 /** 7706 * Test based on the <i>intrinsic</i> charateristics of the TextView. 7707 * The text must be spannable and the movement method must allow for arbitary selection. 7708 * 7709 * See also {@link #canSelectText()}. 7710 */ 7711 private boolean textCanBeSelected() { 7712 // prepareCursorController() relies on this method. 7713 // If you change this condition, make sure prepareCursorController is called anywhere 7714 // the value of this condition might be changed. 7715 return mText instanceof Spannable && mMovement != null && mMovement.canSelectArbitrarily(); 7716 } 7717 7718 private boolean canCut() { 7719 if (hasPasswordTransformationMethod()) { 7720 return false; 7721 } 7722 7723 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mInput != null) { 7724 return true; 7725 } 7726 7727 return false; 7728 } 7729 7730 private boolean canCopy() { 7731 if (hasPasswordTransformationMethod()) { 7732 return false; 7733 } 7734 7735 if (mText.length() > 0 && hasSelection()) { 7736 return true; 7737 } 7738 7739 return false; 7740 } 7741 7742 private boolean canPaste() { 7743 return (mText instanceof Editable && 7744 mInput != null && 7745 getSelectionStart() >= 0 && 7746 getSelectionEnd() >= 0 && 7747 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 7748 hasPrimaryClip()); 7749 } 7750 7751 private boolean isWordCharacter(int c, int type) { 7752 return (c == '\'' || c == '"' || 7753 type == Character.UPPERCASE_LETTER || 7754 type == Character.LOWERCASE_LETTER || 7755 type == Character.TITLECASE_LETTER || 7756 type == Character.MODIFIER_LETTER || 7757 type == Character.OTHER_LETTER || // Should handle asian characters 7758 type == Character.DECIMAL_DIGIT_NUMBER); 7759 } 7760 7761 /** 7762 * Returns the offsets delimiting the 'word' located at position offset. 7763 * 7764 * @param offset An offset in the text. 7765 * @return The offsets for the start and end of the word located at <code>offset</code>. 7766 * The two ints offsets are packed in a long using {@link #packRangeInLong(int, int)}. 7767 * Returns -1 if no valid word was found. 7768 */ 7769 private long getWordLimitsAt(int offset) { 7770 int klass = mInputType & InputType.TYPE_MASK_CLASS; 7771 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 7772 7773 // Text selection is not permitted in password fields 7774 if (hasPasswordTransformationMethod()) { 7775 return -1; 7776 } 7777 7778 final int len = mText.length(); 7779 7780 // Specific text fields: always select the entire text 7781 if (klass == InputType.TYPE_CLASS_NUMBER || 7782 klass == InputType.TYPE_CLASS_PHONE || 7783 klass == InputType.TYPE_CLASS_DATETIME || 7784 variation == InputType.TYPE_TEXT_VARIATION_URI || 7785 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 7786 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 7787 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 7788 return len > 0 ? packRangeInLong(0, len) : -1; 7789 } 7790 7791 int end = Math.min(offset, len); 7792 if (end < 0) { 7793 return -1; 7794 } 7795 7796 final int MAX_LENGTH = 48; 7797 int start = end; 7798 7799 for (; start > 0; start--) { 7800 final char c = mTransformed.charAt(start - 1); 7801 final int type = Character.getType(c); 7802 if (start == end && type == Character.OTHER_PUNCTUATION) { 7803 // Cases where the text ends with a '.' and we select from the end of the line 7804 // (right after the dot), or when we select from the space character in "aaa, bbb". 7805 continue; 7806 } 7807 if (type == Character.SURROGATE) { // Two Character codepoint 7808 end = start - 1; // Recheck as a pair when scanning forward 7809 continue; 7810 } 7811 if (!isWordCharacter(c, type)) break; 7812 if ((end - start) > MAX_LENGTH) return -1; 7813 } 7814 7815 for (; end < len; end++) { 7816 final int c = Character.codePointAt(mTransformed, end); 7817 final int type = Character.getType(c); 7818 if (!isWordCharacter(c, type)) break; 7819 if ((end - start) > MAX_LENGTH) return -1; 7820 if (c > 0xFFFF) { // Two Character codepoint 7821 end++; 7822 } 7823 } 7824 7825 if (start == end) { 7826 return -1; 7827 } 7828 7829 // Two ints packed in a long 7830 return packRangeInLong(start, end); 7831 } 7832 7833 private static long packRangeInLong(int start, int end) { 7834 return (((long) start) << 32) | end; 7835 } 7836 7837 private static int extractRangeStartFromLong(long range) { 7838 return (int) (range >>> 32); 7839 } 7840 7841 private static int extractRangeEndFromLong(long range) { 7842 return (int) (range & 0x00000000FFFFFFFFL); 7843 } 7844 7845 private void selectAll() { 7846 Selection.setSelection((Spannable) mText, 0, mText.length()); 7847 } 7848 7849 private void selectCurrentWord() { 7850 if (!canSelectText()) { 7851 return; 7852 } 7853 7854 if (hasPasswordTransformationMethod()) { 7855 // Always select all on a password field. 7856 // Cut/copy menu entries are not available for passwords, but being able to select all 7857 // is however useful to delete or paste to replace the entire content. 7858 selectAll(); 7859 return; 7860 } 7861 7862 long lastTouchOffsets = getLastTouchOffsets(); 7863 final int minOffset = extractRangeStartFromLong(lastTouchOffsets); 7864 final int maxOffset = extractRangeEndFromLong(lastTouchOffsets); 7865 7866 int selectionStart, selectionEnd; 7867 7868 // If a URLSpan (web address, email, phone...) is found at that position, select it. 7869 URLSpan[] urlSpans = ((Spanned) mText).getSpans(minOffset, maxOffset, URLSpan.class); 7870 if (urlSpans.length == 1) { 7871 URLSpan url = urlSpans[0]; 7872 selectionStart = ((Spanned) mText).getSpanStart(url); 7873 selectionEnd = ((Spanned) mText).getSpanEnd(url); 7874 } else { 7875 long wordLimits = getWordLimitsAt(minOffset); 7876 if (wordLimits >= 0) { 7877 selectionStart = extractRangeStartFromLong(wordLimits); 7878 } else { 7879 selectionStart = Math.max(minOffset - 5, 0); 7880 } 7881 7882 wordLimits = getWordLimitsAt(maxOffset); 7883 if (wordLimits >= 0) { 7884 selectionEnd = extractRangeEndFromLong(wordLimits); 7885 } else { 7886 selectionEnd = Math.min(maxOffset + 5, mText.length()); 7887 } 7888 } 7889 7890 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 7891 } 7892 7893 private long getLastTouchOffsets() { 7894 int minOffset, maxOffset; 7895 7896 if (mContextMenuTriggeredByKey) { 7897 minOffset = getSelectionStart(); 7898 maxOffset = getSelectionEnd(); 7899 } else { 7900 SelectionModifierCursorController selectionController = getSelectionController(); 7901 minOffset = selectionController.getMinTouchOffset(); 7902 maxOffset = selectionController.getMaxTouchOffset(); 7903 } 7904 7905 return packRangeInLong(minOffset, maxOffset); 7906 } 7907 7908 @Override 7909 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 7910 if (!isShown()) { 7911 return false; 7912 } 7913 7914 final boolean isPassword = hasPasswordTransformationMethod(); 7915 7916 if (!isPassword) { 7917 CharSequence text = getText(); 7918 if (TextUtils.isEmpty(text)) { 7919 text = getHint(); 7920 } 7921 if (!TextUtils.isEmpty(text)) { 7922 if (text.length() > AccessibilityEvent.MAX_TEXT_LENGTH) { 7923 text = text.subSequence(0, AccessibilityEvent.MAX_TEXT_LENGTH + 1); 7924 } 7925 event.getText().add(text); 7926 } 7927 } else { 7928 event.setPassword(isPassword); 7929 } 7930 return false; 7931 } 7932 7933 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 7934 int fromIndex, int removedCount, int addedCount) { 7935 AccessibilityEvent event = 7936 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 7937 event.setFromIndex(fromIndex); 7938 event.setRemovedCount(removedCount); 7939 event.setAddedCount(addedCount); 7940 event.setBeforeText(beforeText); 7941 sendAccessibilityEventUnchecked(event); 7942 } 7943 7944 @Override 7945 protected void onCreateContextMenu(ContextMenu menu) { 7946 super.onCreateContextMenu(menu); 7947 boolean added = false; 7948 mContextMenuTriggeredByKey = mDPadCenterIsDown || mEnterKeyIsDown; 7949 // Problem with context menu on long press: the menu appears while the key in down and when 7950 // the key is released, the view does not receive the key_up event. 7951 // We need two layers of flags: mDPadCenterIsDown and mEnterKeyIsDown are set in key down/up 7952 // events. We cannot simply clear these flags in onTextContextMenuItem since 7953 // it may not be called (if the user/ discards the context menu with the back key). 7954 // We clear these flags here and mContextMenuTriggeredByKey saves that state so that it is 7955 // available in onTextContextMenuItem. 7956 mDPadCenterIsDown = mEnterKeyIsDown = false; 7957 7958 MenuHandler handler = new MenuHandler(); 7959 7960 if (mText instanceof Spanned && hasSelectionController()) { 7961 long lastTouchOffset = getLastTouchOffsets(); 7962 final int selStart = extractRangeStartFromLong(lastTouchOffset); 7963 final int selEnd = extractRangeEndFromLong(lastTouchOffset); 7964 7965 URLSpan[] urls = ((Spanned) mText).getSpans(selStart, selEnd, URLSpan.class); 7966 if (urls.length > 0) { 7967 menu.add(0, ID_COPY_URL, 0, com.android.internal.R.string.copyUrl). 7968 setOnMenuItemClickListener(handler); 7969 7970 added = true; 7971 } 7972 } 7973 7974 // The context menu is not empty, which will prevent the selection mode from starting. 7975 // Add a entry to start it in the context menu. 7976 // TODO Does not handle the case where a subclass does not call super.thisMethod or 7977 // populates the menu AFTER this call. 7978 if (menu.size() > 0) { 7979 menu.add(0, ID_SELECTION_MODE, 0, com.android.internal.R.string.selectTextMode). 7980 setOnMenuItemClickListener(handler); 7981 added = true; 7982 } 7983 7984 if (added) { 7985 menu.setHeaderTitle(com.android.internal.R.string.editTextMenuTitle); 7986 } 7987 } 7988 7989 /** 7990 * Returns whether this text view is a current input method target. The 7991 * default implementation just checks with {@link InputMethodManager}. 7992 */ 7993 public boolean isInputMethodTarget() { 7994 InputMethodManager imm = InputMethodManager.peekInstance(); 7995 return imm != null && imm.isActive(this); 7996 } 7997 7998 // Selection context mode 7999 private static final int ID_SELECT_ALL = android.R.id.selectAll; 8000 private static final int ID_CUT = android.R.id.cut; 8001 private static final int ID_COPY = android.R.id.copy; 8002 private static final int ID_PASTE = android.R.id.paste; 8003 // Context menu entries 8004 private static final int ID_COPY_URL = android.R.id.copyUrl; 8005 private static final int ID_SELECTION_MODE = android.R.id.selectTextMode; 8006 8007 private class MenuHandler implements MenuItem.OnMenuItemClickListener { 8008 public boolean onMenuItemClick(MenuItem item) { 8009 return onTextContextMenuItem(item.getItemId()); 8010 } 8011 } 8012 8013 /** 8014 * Called when a context menu option for the text view is selected. Currently 8015 * this will be {@link android.R.id#copyUrl}, {@link android.R.id#selectTextMode}, 8016 * {@link android.R.id#selectAll}, {@link android.R.id#paste}, {@link android.R.id#cut} 8017 * or {@link android.R.id#copy}. 8018 */ 8019 public boolean onTextContextMenuItem(int id) { 8020 int min = 0; 8021 int max = mText.length(); 8022 8023 if (isFocused()) { 8024 final int selStart = getSelectionStart(); 8025 final int selEnd = getSelectionEnd(); 8026 8027 min = Math.max(0, Math.min(selStart, selEnd)); 8028 max = Math.max(0, Math.max(selStart, selEnd)); 8029 } 8030 8031 switch (id) { 8032 case ID_COPY_URL: 8033 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, URLSpan.class); 8034 if (urls.length >= 1) { 8035 ClipData clip = null; 8036 for (int i=0; i<urls.length; i++) { 8037 Uri uri = Uri.parse(urls[0].getURL()); 8038 if (clip == null) { 8039 clip = ClipData.newRawUri(null, uri); 8040 } else { 8041 clip.addItem(new ClipData.Item(uri)); 8042 } 8043 } 8044 if (clip != null) { 8045 setPrimaryClip(clip); 8046 } 8047 } 8048 stopSelectionActionMode(); 8049 return true; 8050 8051 case ID_SELECTION_MODE: 8052 if (mSelectionActionMode != null) { 8053 // Selection mode is already started, simply change selected part. 8054 updateSelectedRegion(); 8055 } else { 8056 startSelectionActionMode(); 8057 } 8058 return true; 8059 8060 case ID_SELECT_ALL: 8061 // This does not enter text selection mode. Text is highlighted, so that it can be 8062 // bulk edited, like selectAllOnFocus does. 8063 selectAll(); 8064 return true; 8065 8066 case ID_PASTE: 8067 paste(min, max); 8068 return true; 8069 8070 case ID_CUT: 8071 setPrimaryClip(ClipData.newPlainText(null, mTransformed.subSequence(min, max))); 8072 ((Editable) mText).delete(min, max); 8073 stopSelectionActionMode(); 8074 return true; 8075 8076 case ID_COPY: 8077 setPrimaryClip(ClipData.newPlainText(null, mTransformed.subSequence(min, max))); 8078 stopSelectionActionMode(); 8079 return true; 8080 } 8081 return false; 8082 } 8083 8084 /** 8085 * Prepare text so that there are not zero or two spaces at beginning and end of region defined 8086 * by [min, max] when replacing this region by paste. 8087 * Note that if there were two spaces (or more) at that position before, they are kept. We just 8088 * make sure we do not add an extra one from the paste content. 8089 */ 8090 private long prepareSpacesAroundPaste(int min, int max, CharSequence paste) { 8091 if (paste.length() > 0) { 8092 if (min > 0) { 8093 final char charBefore = mTransformed.charAt(min - 1); 8094 final char charAfter = paste.charAt(0); 8095 8096 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8097 // Two spaces at beginning of paste: remove one 8098 final int originalLength = mText.length(); 8099 ((Editable) mText).delete(min - 1, min); 8100 // Due to filters, there is no guarantee that exactly one character was 8101 // removed: count instead. 8102 final int delta = mText.length() - originalLength; 8103 min += delta; 8104 max += delta; 8105 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8106 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8107 // No space at beginning of paste: add one 8108 final int originalLength = mText.length(); 8109 ((Editable) mText).replace(min, min, " "); 8110 // Taking possible filters into account as above. 8111 final int delta = mText.length() - originalLength; 8112 min += delta; 8113 max += delta; 8114 } 8115 } 8116 8117 if (max < mText.length()) { 8118 final char charBefore = paste.charAt(paste.length() - 1); 8119 final char charAfter = mTransformed.charAt(max); 8120 8121 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8122 // Two spaces at end of paste: remove one 8123 ((Editable) mText).delete(max, max + 1); 8124 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8125 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8126 // No space at end of paste: add one 8127 ((Editable) mText).replace(max, max, " "); 8128 } 8129 } 8130 } 8131 8132 return packRangeInLong(min, max); 8133 } 8134 8135 private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { 8136 TextView shadowView = (TextView) inflate(mContext, 8137 com.android.internal.R.layout.text_drag_thumbnail, null); 8138 8139 if (shadowView == null) { 8140 throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); 8141 } 8142 8143 if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { 8144 text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); 8145 } 8146 shadowView.setText(text); 8147 shadowView.setTextColor(getTextColors()); 8148 8149 shadowView.setTextAppearance(mContext, R.styleable.Theme_textAppearanceLarge); 8150 shadowView.setGravity(Gravity.CENTER); 8151 8152 shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 8153 ViewGroup.LayoutParams.WRAP_CONTENT)); 8154 8155 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8156 shadowView.measure(size, size); 8157 8158 shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); 8159 shadowView.invalidate(); 8160 return new DragShadowBuilder(shadowView); 8161 } 8162 8163 private static class DragLocalState { 8164 public TextView sourceTextView; 8165 public int start, end; 8166 8167 public DragLocalState(TextView sourceTextView, int start, int end) { 8168 this.sourceTextView = sourceTextView; 8169 this.start = start; 8170 this.end = end; 8171 } 8172 } 8173 8174 @Override 8175 public boolean performLongClick() { 8176 if (super.performLongClick()) { 8177 mDiscardNextActionUp = true; 8178 return true; 8179 } 8180 8181 boolean handled = false; 8182 8183 // Long press in empty space moves cursor and shows the Paste affordance if available. 8184 if (!isPositionOnText(mLastDownPositionX, mLastDownPositionY) && 8185 mInsertionControllerEnabled) { 8186 final int offset = getOffset(mLastDownPositionX, mLastDownPositionY); 8187 stopSelectionActionMode(); 8188 Selection.setSelection((Spannable)mText, offset); 8189 getInsertionController().show(0); 8190 handled = true; 8191 } 8192 8193 if (!handled && mSelectionActionMode != null) { 8194 if (touchPositionIsInSelection()) { 8195 // Start a drag 8196 final int start = getSelectionStart(); 8197 final int end = getSelectionEnd(); 8198 CharSequence selectedText = mTransformed.subSequence(start, end); 8199 ClipData data = ClipData.newPlainText(null, selectedText); 8200 DragLocalState localState = new DragLocalState(this, start, end); 8201 startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); 8202 stopSelectionActionMode(); 8203 } else { 8204 // New selection at touch position 8205 updateSelectedRegion(); 8206 } 8207 handled = true; 8208 } 8209 8210 // Start a new selection 8211 handled |= !handled && startSelectionActionMode(); 8212 8213 if (handled) { 8214 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 8215 mDiscardNextActionUp = true; 8216 } 8217 8218 return handled; 8219 } 8220 8221 /** 8222 * When selection mode is already started, this method simply updates the selected part of text 8223 * to the text under the finger. 8224 */ 8225 private void updateSelectedRegion() { 8226 // Start a new selection at current position, keep selectionAction mode on 8227 selectCurrentWord(); 8228 // Updates handles' positions 8229 getSelectionController().show(); 8230 } 8231 8232 private boolean touchPositionIsInSelection() { 8233 int selectionStart = getSelectionStart(); 8234 int selectionEnd = getSelectionEnd(); 8235 8236 if (selectionStart == selectionEnd) { 8237 return false; 8238 } 8239 8240 if (selectionStart > selectionEnd) { 8241 int tmp = selectionStart; 8242 selectionStart = selectionEnd; 8243 selectionEnd = tmp; 8244 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8245 } 8246 8247 SelectionModifierCursorController selectionController = getSelectionController(); 8248 int minOffset = selectionController.getMinTouchOffset(); 8249 int maxOffset = selectionController.getMaxTouchOffset(); 8250 8251 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 8252 } 8253 8254 /** 8255 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 8256 * selection is initiated in this View. 8257 * 8258 * The standard implementation populates the menu with a subset of Select All, Cut, Copy and 8259 * Paste actions, depending on what this View supports. 8260 * 8261 * A custom implementation can add new entries in the default menu in its 8262 * {@link ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The default actions 8263 * can also be removed from the menu using {@link Menu#removeItem(int)} and passing 8264 * {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy} or 8265 * {@link android.R.id#paste} ids as parameters. 8266 * 8267 * Returning false from {@link ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will 8268 * prevent the action mode from being started. 8269 * 8270 * Action click events should be handled by the custom implementation of 8271 * {@link ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}. 8272 * 8273 * Note that text selection mode is not started when a TextView receives focus and the 8274 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 8275 * that case, to allow for quick replacement. 8276 */ 8277 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 8278 mCustomSelectionActionModeCallback = actionModeCallback; 8279 } 8280 8281 /** 8282 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 8283 * 8284 * @return The current custom selection callback. 8285 */ 8286 public ActionMode.Callback getCustomSelectionActionModeCallback() { 8287 return mCustomSelectionActionModeCallback; 8288 } 8289 8290 /** 8291 * 8292 * @return true if the selection mode was actually started. 8293 */ 8294 private boolean startSelectionActionMode() { 8295 if (mSelectionActionMode != null) { 8296 // Selection action mode is already started 8297 return false; 8298 } 8299 8300 if (!canSelectText() || !requestFocus()) { 8301 Log.w(LOG_TAG, "TextView does not support text selection. Action mode cancelled."); 8302 return false; 8303 } 8304 8305 if (!hasSelection()) { 8306 // If selection mode is started after a device rotation, there is already a selection. 8307 selectCurrentWord(); 8308 } 8309 8310 ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); 8311 mSelectionActionMode = startActionMode(actionModeCallback); 8312 final boolean selectionStarted = mSelectionActionMode != null; 8313 8314 if (selectionStarted && !mTextIsSelectable) { 8315 // Show the IME to be able to replace text, except when selecting non editable text. 8316 final InputMethodManager imm = InputMethodManager.peekInstance(); 8317 if (imm != null) imm.showSoftInput(this, 0, null); 8318 } 8319 8320 return selectionStarted; 8321 } 8322 8323 /** 8324 * Same as {@link #stopSelectionActionMode()}, except that there is no cursor controller 8325 * fade out animation. Needed since the drawable and their alpha values are shared by all 8326 * TextViews. Switching from one TextView to another would fade the cursor controllers in the 8327 * new one otherwise. 8328 */ 8329 private void terminateSelectionActionMode() { 8330 stopSelectionActionMode(); 8331 8332 // No need to create the controller, nothing to cancel in that case. 8333 if (mSelectionModifierCursorController != null) { 8334 mSelectionModifierCursorController.cancelFadeOutAnimation(); 8335 } 8336 } 8337 8338 private void stopSelectionActionMode() { 8339 if (mSelectionActionMode != null) { 8340 // This will hide the mSelectionModifierCursorController 8341 mSelectionActionMode.finish(); 8342 } 8343 } 8344 8345 /** 8346 * Paste clipboard content between min and max positions. 8347 */ 8348 private void paste(int min, int max) { 8349 ClipboardManager clipboard = 8350 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 8351 ClipData clip = clipboard.getPrimaryClip(); 8352 if (clip != null) { 8353 boolean didfirst = false; 8354 for (int i=0; i<clip.getItemCount(); i++) { 8355 CharSequence paste = clip.getItemAt(i).coerceToText(getContext()); 8356 if (paste != null) { 8357 if (!didfirst) { 8358 long minMax = prepareSpacesAroundPaste(min, max, paste); 8359 min = extractRangeStartFromLong(minMax); 8360 max = extractRangeEndFromLong(minMax); 8361 Selection.setSelection((Spannable) mText, max); 8362 ((Editable) mText).replace(min, max, paste); 8363 } else { 8364 ((Editable) mText).insert(getSelectionEnd(), "\n"); 8365 ((Editable) mText).insert(getSelectionEnd(), paste); 8366 } 8367 } 8368 } 8369 stopSelectionActionMode(); 8370 sLastCutOrCopyTime = 0; 8371 } 8372 } 8373 8374 private void setPrimaryClip(ClipData clip) { 8375 ClipboardManager clipboard = (ClipboardManager) getContext(). 8376 getSystemService(Context.CLIPBOARD_SERVICE); 8377 clipboard.setPrimaryClip(clip); 8378 sLastCutOrCopyTime = SystemClock.uptimeMillis(); 8379 } 8380 8381 /** 8382 * An ActionMode Callback class that is used to provide actions while in text selection mode. 8383 * 8384 * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending 8385 * on which of these this TextView supports. 8386 */ 8387 private class SelectionActionModeCallback implements ActionMode.Callback { 8388 8389 @Override 8390 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 8391 TypedArray styledAttributes = mContext.obtainStyledAttributes(R.styleable.Theme); 8392 8393 mode.setTitle(mContext.getString(com.android.internal.R.string.textSelectionCABTitle)); 8394 mode.setSubtitle(null); 8395 8396 menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 8397 setAlphabeticShortcut('a'). 8398 setShowAsAction( 8399 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8400 8401 if (canCut()) { 8402 menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut). 8403 setIcon(styledAttributes.getResourceId( 8404 R.styleable.Theme_actionModeCutDrawable, 0)). 8405 setAlphabeticShortcut('x'). 8406 setShowAsAction( 8407 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8408 } 8409 8410 if (canCopy()) { 8411 menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy). 8412 setIcon(styledAttributes.getResourceId( 8413 R.styleable.Theme_actionModeCopyDrawable, 0)). 8414 setAlphabeticShortcut('c'). 8415 setShowAsAction( 8416 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8417 } 8418 8419 if (canPaste()) { 8420 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 8421 setIcon(styledAttributes.getResourceId( 8422 R.styleable.Theme_actionModePasteDrawable, 0)). 8423 setAlphabeticShortcut('v'). 8424 setShowAsAction( 8425 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8426 } 8427 8428 styledAttributes.recycle(); 8429 8430 if (mCustomSelectionActionModeCallback != null) { 8431 if (!mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) { 8432 // The custom mode can choose to cancel the action mode 8433 return false; 8434 } 8435 } 8436 8437 if (menu.hasVisibleItems() || mode.getCustomView() != null) { 8438 getSelectionController().show(); 8439 return true; 8440 } else { 8441 return false; 8442 } 8443 } 8444 8445 @Override 8446 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 8447 if (mCustomSelectionActionModeCallback != null) { 8448 return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); 8449 } 8450 return true; 8451 } 8452 8453 @Override 8454 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 8455 if (mCustomSelectionActionModeCallback != null && 8456 mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { 8457 return true; 8458 } 8459 return onTextContextMenuItem(item.getItemId()); 8460 } 8461 8462 @Override 8463 public void onDestroyActionMode(ActionMode mode) { 8464 if (mCustomSelectionActionModeCallback != null) { 8465 mCustomSelectionActionModeCallback.onDestroyActionMode(mode); 8466 } 8467 Selection.setSelection((Spannable) mText, getSelectionEnd()); 8468 8469 if (mSelectionModifierCursorController != null) { 8470 mSelectionModifierCursorController.hide(); 8471 } 8472 8473 mSelectionActionMode = null; 8474 } 8475 } 8476 8477 /** 8478 * A CursorController instance can be used to control a cursor in the text. 8479 * It is not used outside of {@link TextView}. 8480 * @hide 8481 */ 8482 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 8483 /** 8484 * Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}. 8485 * See also {@link #hide()}. 8486 */ 8487 public void show(); 8488 8489 /** 8490 * Hide the cursor controller from screen. 8491 * See also {@link #show()}. 8492 */ 8493 public void hide(); 8494 8495 /** 8496 * @return true if the CursorController is currently visible 8497 */ 8498 public boolean isShowing(); 8499 8500 /** 8501 * Update the controller's position. 8502 */ 8503 public void updatePosition(HandleView handle, int x, int y); 8504 8505 public void updateOffset(HandleView handle, int offset); 8506 8507 public void updatePosition(); 8508 8509 public int getCurrentOffset(HandleView handle); 8510 8511 /** 8512 * This method is called by {@link #onTouchEvent(MotionEvent)} and gives the controller 8513 * a chance to become active and/or visible. 8514 * @param event The touch event 8515 */ 8516 public boolean onTouchEvent(MotionEvent event); 8517 8518 /** 8519 * Called when the view is detached from window. Perform house keeping task, such as 8520 * stopping Runnable thread that would otherwise keep a reference on the context, thus 8521 * preventing the activity to be recycled. 8522 */ 8523 public void onDetached(); 8524 } 8525 8526 private class PastePopupMenu implements OnClickListener { 8527 private final PopupWindow mContainer; 8528 private int mPositionX; 8529 private int mPositionY; 8530 private final View[] mPasteViews = new View[4]; 8531 private final int[] mPasteViewLayouts = new int[] { 8532 mTextEditPasteWindowLayout, mTextEditNoPasteWindowLayout, 8533 mTextEditSidePasteWindowLayout, mTextEditSideNoPasteWindowLayout }; 8534 8535 public PastePopupMenu() { 8536 mContainer = new PopupWindow(TextView.this.mContext, null, 8537 com.android.internal.R.attr.textSelectHandleWindowStyle); 8538 mContainer.setSplitTouchEnabled(true); 8539 mContainer.setClippingEnabled(false); 8540 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8541 8542 mContainer.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 8543 mContainer.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 8544 } 8545 8546 private int viewIndex(boolean onTop) { 8547 return (onTop ? 0 : 1<<1) + (canPaste() ? 0 : 1<<0); 8548 } 8549 8550 private void updateContent(boolean onTop) { 8551 final int viewIndex = viewIndex(onTop); 8552 View view = mPasteViews[viewIndex]; 8553 8554 if (view == null) { 8555 final int layout = mPasteViewLayouts[viewIndex]; 8556 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 8557 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 8558 if (inflater != null) { 8559 view = inflater.inflate(layout, null); 8560 } 8561 8562 if (view == null) { 8563 throw new IllegalArgumentException("Unable to inflate TextEdit paste window"); 8564 } 8565 8566 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8567 view.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 8568 ViewGroup.LayoutParams.WRAP_CONTENT)); 8569 view.measure(size, size); 8570 8571 view.setOnClickListener(this); 8572 8573 mPasteViews[viewIndex] = view; 8574 } 8575 8576 mContainer.setContentView(view); 8577 } 8578 8579 public void show() { 8580 updateContent(true); 8581 positionAtCursor(); 8582 } 8583 8584 public void hide() { 8585 mContainer.dismiss(); 8586 } 8587 8588 public boolean isShowing() { 8589 return mContainer.isShowing(); 8590 } 8591 8592 @Override 8593 public void onClick(View v) { 8594 if (canPaste()) { 8595 paste(getSelectionStart(), getSelectionEnd()); 8596 } 8597 hide(); 8598 } 8599 8600 void positionAtCursor() { 8601 View contentView = mContainer.getContentView(); 8602 int width = contentView.getMeasuredWidth(); 8603 int height = contentView.getMeasuredHeight(); 8604 final int offset = TextView.this.getSelectionStart(); 8605 final int line = mLayout.getLineForOffset(offset); 8606 final int lineTop = mLayout.getLineTop(line); 8607 float primaryHorizontal = mLayout.getPrimaryHorizontal(offset); 8608 8609 final Rect bounds = sCursorControllerTempRect; 8610 bounds.left = (int) (primaryHorizontal - width / 2.0f); 8611 bounds.top = lineTop - height; 8612 8613 bounds.right = bounds.left + width; 8614 bounds.bottom = bounds.top + height; 8615 8616 convertFromViewportToContentCoordinates(bounds); 8617 8618 mPositionX = bounds.left; 8619 mPositionY = bounds.top; 8620 8621 8622 final int[] coords = mTempCoords; 8623 TextView.this.getLocationInWindow(coords); 8624 coords[0] += mPositionX; 8625 coords[1] += mPositionY; 8626 8627 final int screenWidth = mContext.getResources().getDisplayMetrics().widthPixels; 8628 if (coords[1] < 0) { 8629 updateContent(false); 8630 // Update dimensions from new view 8631 contentView = mContainer.getContentView(); 8632 width = contentView.getMeasuredWidth(); 8633 height = contentView.getMeasuredHeight(); 8634 8635 // Vertical clipping, move under edited line and to the side of insertion cursor 8636 // TODO bottom clipping in case there is no system bar 8637 coords[1] += height; 8638 final int lineBottom = mLayout.getLineBottom(line); 8639 final int lineHeight = lineBottom - lineTop; 8640 coords[1] += lineHeight; 8641 8642 // Move to right hand side of insertion cursor by default. TODO RTL text. 8643 final Drawable handle = mContext.getResources().getDrawable(mTextSelectHandleRes); 8644 final int handleHalfWidth = handle.getIntrinsicWidth() / 2; 8645 8646 if (primaryHorizontal + handleHalfWidth + width < screenWidth) { 8647 coords[0] += handleHalfWidth + width / 2; 8648 } else { 8649 coords[0] -= handleHalfWidth + width / 2; 8650 } 8651 } else { 8652 // Horizontal clipping 8653 coords[0] = Math.max(0, coords[0]); 8654 coords[0] = Math.min(screenWidth - width, coords[0]); 8655 } 8656 8657 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, coords[0], coords[1]); 8658 } 8659 } 8660 8661 private class HandleView extends View { 8662 private Drawable mDrawable; 8663 private final PopupWindow mContainer; 8664 private int mPositionX; 8665 private int mPositionY; 8666 private final CursorController mController; 8667 private boolean mIsDragging; 8668 private float mTouchToWindowOffsetX; 8669 private float mTouchToWindowOffsetY; 8670 private float mHotspotX; 8671 private float mHotspotY; 8672 private int mHeight; 8673 private float mTouchOffsetY; 8674 private int mLastParentX; 8675 private int mLastParentY; 8676 private float mDownPositionX, mDownPositionY; 8677 private int mContainerPositionX, mContainerPositionY; 8678 private long mTouchTimer; 8679 private boolean mIsInsertionHandle = false; 8680 private PastePopupMenu mPastePopupWindow; 8681 8682 // Touch-up filter: number of previous positions remembered 8683 private static final int HISTORY_SIZE = 5; 8684 private static final int TOUCH_UP_FILTER_DELAY = 150; 8685 private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; 8686 private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; 8687 private int mPreviousOffsetIndex = 0; 8688 private int mNumberPreviousOffsets = 0; 8689 8690 public void startTouchUpFilter(int offset) { 8691 mNumberPreviousOffsets = 0; 8692 addPositionToTouchUpFilter(offset); 8693 } 8694 8695 public void addPositionToTouchUpFilter(int offset) { 8696 if (mNumberPreviousOffsets > 0 && 8697 mPreviousOffsets[mPreviousOffsetIndex] == offset) { 8698 // Make sure only actual changes of position are recorded. 8699 return; 8700 } 8701 8702 mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; 8703 mPreviousOffsets[mPreviousOffsetIndex] = offset; 8704 mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); 8705 mNumberPreviousOffsets++; 8706 } 8707 8708 public void filterOnTouchUp() { 8709 final long now = SystemClock.uptimeMillis(); 8710 int i = 0; 8711 int index = 0; 8712 final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); 8713 while (i < iMax) { 8714 index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; 8715 if ((now - mPreviousOffsetsTimes[index]) >= TOUCH_UP_FILTER_DELAY) break; 8716 i++; 8717 } 8718 8719 mController.updateOffset(this, mPreviousOffsets[index]); 8720 } 8721 8722 public static final int LEFT = 0; 8723 public static final int CENTER = 1; 8724 public static final int RIGHT = 2; 8725 8726 public HandleView(CursorController controller, int pos) { 8727 super(TextView.this.mContext); 8728 mController = controller; 8729 mContainer = new PopupWindow(TextView.this.mContext, null, 8730 com.android.internal.R.attr.textSelectHandleWindowStyle); 8731 mContainer.setSplitTouchEnabled(true); 8732 mContainer.setClippingEnabled(false); 8733 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8734 8735 setOrientation(pos); 8736 } 8737 8738 public void setOrientation(int pos) { 8739 int handleWidth; 8740 switch (pos) { 8741 case LEFT: { 8742 if (mSelectHandleLeft == null) { 8743 mSelectHandleLeft = mContext.getResources().getDrawable( 8744 mTextSelectHandleLeftRes); 8745 } 8746 mDrawable = mSelectHandleLeft; 8747 handleWidth = mDrawable.getIntrinsicWidth(); 8748 mHotspotX = handleWidth * 3.0f / 4.0f; 8749 break; 8750 } 8751 8752 case RIGHT: { 8753 if (mSelectHandleRight == null) { 8754 mSelectHandleRight = mContext.getResources().getDrawable( 8755 mTextSelectHandleRightRes); 8756 } 8757 mDrawable = mSelectHandleRight; 8758 handleWidth = mDrawable.getIntrinsicWidth(); 8759 mHotspotX = handleWidth / 4.0f; 8760 break; 8761 } 8762 8763 case CENTER: 8764 default: { 8765 if (mSelectHandleCenter == null) { 8766 mSelectHandleCenter = mContext.getResources().getDrawable( 8767 mTextSelectHandleRes); 8768 } 8769 mDrawable = mSelectHandleCenter; 8770 handleWidth = mDrawable.getIntrinsicWidth(); 8771 mHotspotX = handleWidth / 2.0f; 8772 mIsInsertionHandle = true; 8773 break; 8774 } 8775 } 8776 8777 final int handleHeight = mDrawable.getIntrinsicHeight(); 8778 8779 mTouchOffsetY = -handleHeight * 0.3f; 8780 mHotspotY = 0; 8781 mHeight = handleHeight; 8782 invalidate(); 8783 } 8784 8785 @Override 8786 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 8787 setMeasuredDimension(mDrawable.getIntrinsicWidth(), 8788 mDrawable.getIntrinsicHeight()); 8789 } 8790 8791 public void show() { 8792 if (!isPositionVisible()) { 8793 hide(); 8794 return; 8795 } 8796 mContainer.setContentView(this); 8797 final int[] coords = mTempCoords; 8798 TextView.this.getLocationInWindow(coords); 8799 mContainerPositionX = coords[0] + mPositionX; 8800 mContainerPositionY = coords[1] + mPositionY; 8801 mContainer.showAtLocation(TextView.this, 0, mContainerPositionX, mContainerPositionY); 8802 8803 // Hide paste view when handle is moved on screen. 8804 if (mPastePopupWindow != null) { 8805 mPastePopupWindow.hide(); 8806 } 8807 } 8808 8809 public void hide() { 8810 mIsDragging = false; 8811 mContainer.dismiss(); 8812 if (mPastePopupWindow != null) { 8813 mPastePopupWindow.hide(); 8814 } 8815 } 8816 8817 public boolean isShowing() { 8818 return mContainer.isShowing(); 8819 } 8820 8821 private boolean isPositionVisible() { 8822 // Always show a dragging handle. 8823 if (mIsDragging) { 8824 return true; 8825 } 8826 8827 if (isInBatchEditMode()) { 8828 return false; 8829 } 8830 8831 final int extendedPaddingTop = getExtendedPaddingTop(); 8832 final int extendedPaddingBottom = getExtendedPaddingBottom(); 8833 final int compoundPaddingLeft = getCompoundPaddingLeft(); 8834 final int compoundPaddingRight = getCompoundPaddingRight(); 8835 8836 final TextView hostView = TextView.this; 8837 final int left = 0; 8838 final int right = hostView.getWidth(); 8839 final int top = 0; 8840 final int bottom = hostView.getHeight(); 8841 8842 if (mTempRect == null) { 8843 mTempRect = new Rect(); 8844 } 8845 final Rect clip = mTempRect; 8846 clip.left = left + compoundPaddingLeft; 8847 clip.top = top + extendedPaddingTop; 8848 clip.right = right - compoundPaddingRight; 8849 clip.bottom = bottom - extendedPaddingBottom; 8850 8851 final ViewParent parent = hostView.getParent(); 8852 if (parent == null || !parent.getChildVisibleRect(hostView, clip, null)) { 8853 return false; 8854 } 8855 8856 final int[] coords = mTempCoords; 8857 hostView.getLocationInWindow(coords); 8858 final int posX = coords[0] + mPositionX + (int) mHotspotX; 8859 final int posY = coords[1] + mPositionY + (int) mHotspotY; 8860 8861 return posX >= clip.left && posX <= clip.right && 8862 posY >= clip.top && posY <= clip.bottom; 8863 } 8864 8865 private void moveTo(int x, int y) { 8866 mPositionX = x - TextView.this.mScrollX; 8867 mPositionY = y - TextView.this.mScrollY; 8868 if (isPositionVisible()) { 8869 int[] coords = null; 8870 if (mContainer.isShowing()) { 8871 coords = mTempCoords; 8872 TextView.this.getLocationInWindow(coords); 8873 final int containerPositionX = coords[0] + mPositionX; 8874 final int containerPositionY = coords[1] + mPositionY; 8875 8876 if (containerPositionX != mContainerPositionX || 8877 containerPositionY != mContainerPositionY) { 8878 mContainerPositionX = containerPositionX; 8879 mContainerPositionY = containerPositionY; 8880 8881 mContainer.update(mContainerPositionX, mContainerPositionY, 8882 mRight - mLeft, mBottom - mTop); 8883 8884 // Hide paste popup window as soon as a scroll occurs. 8885 if (mPastePopupWindow != null) { 8886 mPastePopupWindow.hide(); 8887 } 8888 } 8889 } else { 8890 show(); 8891 } 8892 8893 if (mIsDragging) { 8894 if (coords == null) { 8895 coords = mTempCoords; 8896 TextView.this.getLocationInWindow(coords); 8897 } 8898 if (coords[0] != mLastParentX || coords[1] != mLastParentY) { 8899 mTouchToWindowOffsetX += coords[0] - mLastParentX; 8900 mTouchToWindowOffsetY += coords[1] - mLastParentY; 8901 mLastParentX = coords[0]; 8902 mLastParentY = coords[1]; 8903 } 8904 // Hide paste popup window as soon as the handle is dragged. 8905 if (mPastePopupWindow != null) { 8906 mPastePopupWindow.hide(); 8907 } 8908 } 8909 } else { 8910 hide(); 8911 } 8912 } 8913 8914 @Override 8915 protected void onDraw(Canvas c) { 8916 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 8917 mDrawable.draw(c); 8918 } 8919 8920 @Override 8921 public boolean onTouchEvent(MotionEvent ev) { 8922 switch (ev.getActionMasked()) { 8923 case MotionEvent.ACTION_DOWN: { 8924 startTouchUpFilter(mController.getCurrentOffset(this)); 8925 mDownPositionX = ev.getRawX(); 8926 mDownPositionY = ev.getRawY(); 8927 mTouchToWindowOffsetX = mDownPositionX - mPositionX; 8928 mTouchToWindowOffsetY = mDownPositionY - mPositionY; 8929 final int[] coords = mTempCoords; 8930 TextView.this.getLocationInWindow(coords); 8931 mLastParentX = coords[0]; 8932 mLastParentY = coords[1]; 8933 mIsDragging = true; 8934 if (mIsInsertionHandle) { 8935 mTouchTimer = SystemClock.uptimeMillis(); 8936 } 8937 break; 8938 } 8939 8940 case MotionEvent.ACTION_MOVE: { 8941 final float rawX = ev.getRawX(); 8942 final float rawY = ev.getRawY(); 8943 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 8944 final float newPosY = rawY - mTouchToWindowOffsetY + mHotspotY + mTouchOffsetY; 8945 8946 mController.updatePosition(this, Math.round(newPosX), Math.round(newPosY)); 8947 break; 8948 } 8949 8950 case MotionEvent.ACTION_UP: 8951 if (mIsInsertionHandle) { 8952 long delay = SystemClock.uptimeMillis() - mTouchTimer; 8953 if (delay < ViewConfiguration.getTapTimeout()) { 8954 if (mPastePopupWindow != null && mPastePopupWindow.isShowing()) { 8955 // Tapping on the handle dismisses the displayed paste view, 8956 mPastePopupWindow.hide(); 8957 } else { 8958 ((InsertionPointCursorController) mController).show(0); 8959 } 8960 } 8961 } 8962 filterOnTouchUp(); 8963 mIsDragging = false; 8964 break; 8965 8966 case MotionEvent.ACTION_CANCEL: 8967 mIsDragging = false; 8968 break; 8969 } 8970 return true; 8971 } 8972 8973 public boolean isDragging() { 8974 return mIsDragging; 8975 } 8976 8977 void positionAtCursor(final int offset, boolean bottom) { 8978 addPositionToTouchUpFilter(offset); 8979 final int width = mDrawable.getIntrinsicWidth(); 8980 final int height = mDrawable.getIntrinsicHeight(); 8981 final int line = mLayout.getLineForOffset(offset); 8982 final int lineTop = mLayout.getLineTop(line); 8983 final int lineBottom = mLayout.getLineBottom(line); 8984 8985 final Rect bounds = sCursorControllerTempRect; 8986 bounds.left = (int) (mLayout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX) + 8987 TextView.this.mScrollX; 8988 bounds.top = (bottom ? lineBottom : lineTop - mHeight) + TextView.this.mScrollY; 8989 8990 bounds.right = bounds.left + width; 8991 bounds.bottom = bounds.top + height; 8992 8993 convertFromViewportToContentCoordinates(bounds); 8994 moveTo(bounds.left, bounds.top); 8995 } 8996 8997 void showPastePopupWindow() { 8998 if (mIsInsertionHandle) { 8999 if (mPastePopupWindow == null) { 9000 // Lazy initialisation: create when actually shown only. 9001 mPastePopupWindow = new PastePopupMenu(); 9002 } 9003 mPastePopupWindow.show(); 9004 } 9005 } 9006 } 9007 9008 private class InsertionPointCursorController implements CursorController { 9009 private static final int DELAY_BEFORE_FADE_OUT = 4100; 9010 private static final int DELAY_BEFORE_PASTE = 2000; 9011 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; 9012 9013 // The cursor controller image. Lazily created. 9014 private HandleView mHandle; 9015 private Runnable mHider; 9016 private Runnable mPastePopupShower; 9017 9018 public void show() { 9019 show(DELAY_BEFORE_PASTE); 9020 } 9021 9022 public void show(int delayBeforePaste) { 9023 updatePosition(); 9024 hideDelayed(); 9025 getHandle().show(); 9026 removePastePopupCallback(); 9027 final long durationSinceCutOrCopy = SystemClock.uptimeMillis() - sLastCutOrCopyTime; 9028 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 9029 delayBeforePaste = 0; 9030 } 9031 if (delayBeforePaste == 0 || canPaste()) { 9032 if (mPastePopupShower == null) { 9033 mPastePopupShower = new Runnable() { 9034 public void run() { 9035 getHandle().showPastePopupWindow(); 9036 } 9037 }; 9038 } 9039 postDelayed(mPastePopupShower, delayBeforePaste); 9040 } 9041 } 9042 9043 private void removePastePopupCallback() { 9044 if (mPastePopupShower != null) { 9045 removeCallbacks(mPastePopupShower); 9046 } 9047 } 9048 9049 private void removeHiderCallback() { 9050 if (mHider != null) { 9051 removeCallbacks(mHider); 9052 } 9053 } 9054 9055 public void hide() { 9056 if (mHandle != null) { 9057 mHandle.hide(); 9058 } 9059 removeHiderCallback(); 9060 removePastePopupCallback(); 9061 } 9062 9063 private void hideDelayed() { 9064 removeHiderCallback(); 9065 if (mHider == null) { 9066 mHider = new Runnable() { 9067 public void run() { 9068 hide(); 9069 } 9070 }; 9071 } 9072 postDelayed(mHider, DELAY_BEFORE_FADE_OUT); 9073 } 9074 9075 public boolean isShowing() { 9076 return mHandle != null && mHandle.isShowing(); 9077 } 9078 9079 public void updatePosition(HandleView handle, int x, int y) { 9080 final int previousOffset = getSelectionStart(); 9081 int offset = getHysteresisOffset(x, y, previousOffset); 9082 9083 if (offset != previousOffset) { 9084 updateOffset(handle, offset); 9085 removePastePopupCallback(); 9086 } 9087 hideDelayed(); 9088 } 9089 9090 public void updateOffset(HandleView handle, int offset) { 9091 Selection.setSelection((Spannable) mText, offset); 9092 updatePosition(); 9093 } 9094 9095 public void updatePosition() { 9096 final int offset = getSelectionStart(); 9097 9098 if (offset < 0) { 9099 // Should never happen, safety check. 9100 Log.w(LOG_TAG, "Update cursor controller position called with no cursor"); 9101 hide(); 9102 return; 9103 } 9104 9105 getHandle().positionAtCursor(offset, true); 9106 } 9107 9108 public int getCurrentOffset(HandleView handle) { 9109 return getSelectionStart(); 9110 } 9111 9112 public boolean onTouchEvent(MotionEvent ev) { 9113 return false; 9114 } 9115 9116 public void onTouchModeChanged(boolean isInTouchMode) { 9117 if (!isInTouchMode) { 9118 hide(); 9119 } 9120 } 9121 9122 private HandleView getHandle() { 9123 if (mHandle == null) { 9124 mHandle = new HandleView(this, HandleView.CENTER); 9125 } 9126 return mHandle; 9127 } 9128 9129 @Override 9130 public void onDetached() { 9131 removeHiderCallback(); 9132 removePastePopupCallback(); 9133 } 9134 } 9135 9136 private class SelectionModifierCursorController implements CursorController { 9137 // The cursor controller images, lazily created when shown. 9138 private HandleView mStartHandle, mEndHandle; 9139 // The offsets of that last touch down event. Remembered to start selection there. 9140 private int mMinTouchOffset, mMaxTouchOffset; 9141 // Whether selection anchors are active 9142 private boolean mIsShowing; 9143 9144 // Double tap detection 9145 private long mPreviousTapUpTime = 0; 9146 private int mPreviousTapPositionX; 9147 private int mPreviousTapPositionY; 9148 9149 SelectionModifierCursorController() { 9150 resetTouchOffsets(); 9151 } 9152 9153 public void show() { 9154 if (isInBatchEditMode()) { 9155 return; 9156 } 9157 9158 // Lazy object creation has to be done before updatePosition() is called. 9159 if (mStartHandle == null) mStartHandle = new HandleView(this, HandleView.LEFT); 9160 if (mEndHandle == null) mEndHandle = new HandleView(this, HandleView.RIGHT); 9161 9162 mIsShowing = true; 9163 updatePosition(); 9164 9165 mStartHandle.show(); 9166 mEndHandle.show(); 9167 9168 hideInsertionPointCursorController(); 9169 } 9170 9171 public void hide() { 9172 if (mStartHandle != null) mStartHandle.hide(); 9173 if (mEndHandle != null) mEndHandle.hide(); 9174 mIsShowing = false; 9175 } 9176 9177 public boolean isShowing() { 9178 return mIsShowing; 9179 } 9180 9181 public void cancelFadeOutAnimation() { 9182 hide(); 9183 } 9184 9185 public void updatePosition(HandleView handle, int x, int y) { 9186 int selectionStart = getSelectionStart(); 9187 int selectionEnd = getSelectionEnd(); 9188 9189 final int previousOffset = handle == mStartHandle ? selectionStart : selectionEnd; 9190 int offset = getHysteresisOffset(x, y, previousOffset); 9191 9192 // Handle the case where start and end are swapped, making sure start <= end 9193 if (handle == mStartHandle) { 9194 if (selectionStart == offset || offset > selectionEnd) { 9195 return; // no change, no need to redraw; 9196 } 9197 // If the user "closes" the selection entirely they were probably trying to 9198 // select a single character. Help them out. 9199 if (offset == selectionEnd) { 9200 offset = selectionEnd - 1; 9201 } 9202 selectionStart = offset; 9203 } else { 9204 if (selectionEnd == offset || offset < selectionStart) { 9205 return; // no change, no need to redraw; 9206 } 9207 // If the user "closes" the selection entirely they were probably trying to 9208 // select a single character. Help them out. 9209 if (offset == selectionStart) { 9210 offset = selectionStart + 1; 9211 } 9212 selectionEnd = offset; 9213 } 9214 9215 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 9216 updatePosition(); 9217 } 9218 9219 public void updateOffset(HandleView handle, int offset) { 9220 int start = getSelectionStart(); 9221 int end = getSelectionEnd(); 9222 9223 if (mStartHandle == handle) { 9224 start = offset; 9225 } else { 9226 end = offset; 9227 } 9228 9229 Selection.setSelection((Spannable) mText, start, end); 9230 updatePosition(); 9231 } 9232 9233 public void updatePosition() { 9234 if (!isShowing()) { 9235 return; 9236 } 9237 9238 final int selectionStart = getSelectionStart(); 9239 final int selectionEnd = getSelectionEnd(); 9240 9241 if ((selectionStart < 0) || (selectionEnd < 0)) { 9242 // Should never happen, safety check. 9243 Log.w(LOG_TAG, "Update selection controller position called with no cursor"); 9244 hide(); 9245 return; 9246 } 9247 9248 // The handles have been created since the controller isShowing(). 9249 mStartHandle.positionAtCursor(selectionStart, true); 9250 mEndHandle.positionAtCursor(selectionEnd, true); 9251 } 9252 9253 public int getCurrentOffset(HandleView handle) { 9254 return mStartHandle == handle ? getSelectionStart() : getSelectionEnd(); 9255 } 9256 9257 public boolean onTouchEvent(MotionEvent event) { 9258 // This is done even when the View does not have focus, so that long presses can start 9259 // selection and tap can move cursor from this tap position. 9260 if (isTextEditable() || mTextIsSelectable) { 9261 switch (event.getActionMasked()) { 9262 case MotionEvent.ACTION_DOWN: 9263 final int x = (int) event.getX(); 9264 final int y = (int) event.getY(); 9265 9266 // Remember finger down position, to be able to start selection from there 9267 mMinTouchOffset = mMaxTouchOffset = getOffset(x, y); 9268 9269 // Double tap detection 9270 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 9271 if (duration <= ViewConfiguration.getDoubleTapTimeout() && 9272 isPositionOnText(x, y)) { 9273 final int deltaX = x - mPreviousTapPositionX; 9274 final int deltaY = y - mPreviousTapPositionY; 9275 final int distanceSquared = deltaX * deltaX + deltaY * deltaY; 9276 if (distanceSquared < mSquaredTouchSlopDistance) { 9277 startSelectionActionMode(); 9278 mDiscardNextActionUp = true; 9279 } 9280 } 9281 9282 mPreviousTapPositionX = x; 9283 mPreviousTapPositionY = y; 9284 9285 break; 9286 9287 case MotionEvent.ACTION_POINTER_DOWN: 9288 case MotionEvent.ACTION_POINTER_UP: 9289 // Handle multi-point gestures. Keep min and max offset positions. 9290 // Only activated for devices that correctly handle multi-touch. 9291 if (mContext.getPackageManager().hasSystemFeature( 9292 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 9293 updateMinAndMaxOffsets(event); 9294 } 9295 break; 9296 9297 case MotionEvent.ACTION_UP: 9298 mPreviousTapUpTime = SystemClock.uptimeMillis(); 9299 break; 9300 } 9301 } 9302 return false; 9303 } 9304 9305 /** 9306 * @param event 9307 */ 9308 private void updateMinAndMaxOffsets(MotionEvent event) { 9309 int pointerCount = event.getPointerCount(); 9310 for (int index = 0; index < pointerCount; index++) { 9311 final int x = (int) event.getX(index); 9312 final int y = (int) event.getY(index); 9313 int offset = getOffset(x, y); 9314 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 9315 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 9316 } 9317 } 9318 9319 public int getMinTouchOffset() { 9320 return mMinTouchOffset; 9321 } 9322 9323 public int getMaxTouchOffset() { 9324 return mMaxTouchOffset; 9325 } 9326 9327 public void resetTouchOffsets() { 9328 mMinTouchOffset = mMaxTouchOffset = -1; 9329 } 9330 9331 /** 9332 * @return true iff this controller is currently used to move the selection start. 9333 */ 9334 public boolean isSelectionStartDragged() { 9335 return mStartHandle != null && mStartHandle.isDragging(); 9336 } 9337 9338 public void onTouchModeChanged(boolean isInTouchMode) { 9339 if (!isInTouchMode) { 9340 hide(); 9341 } 9342 } 9343 9344 @Override 9345 public void onDetached() {} 9346 } 9347 9348 private void hideInsertionPointCursorController() { 9349 // No need to create the controller to hide it. 9350 if (mInsertionPointCursorController != null) { 9351 mInsertionPointCursorController.hide(); 9352 } 9353 } 9354 9355 /** 9356 * Hides the insertion controller and stops text selection mode, hiding the selection controller 9357 */ 9358 private void hideControllers() { 9359 hideInsertionPointCursorController(); 9360 stopSelectionActionMode(); 9361 } 9362 9363 /** 9364 * Get the offset character closest to the specified absolute position. 9365 * 9366 * @param x The horizontal absolute position of a point on screen 9367 * @param y The vertical absolute position of a point on screen 9368 * @return the character offset for the character whose position is closest to the specified 9369 * position. Returns -1 if there is no layout. 9370 * 9371 * @hide 9372 */ 9373 public int getOffset(int x, int y) { 9374 if (getLayout() == null) return -1; 9375 final int line = getLineAtCoordinate(y); 9376 final int offset = getOffsetAtCoordinate(line, x); 9377 return offset; 9378 } 9379 9380 int getHysteresisOffset(int x, int y, int previousOffset) { 9381 final Layout layout = getLayout(); 9382 if (layout == null) return -1; 9383 9384 int line = getLineAtCoordinate(y); 9385 final int previousLine = layout.getLineForOffset(previousOffset); 9386 final int previousLineTop = layout.getLineTop(previousLine); 9387 final int previousLineBottom = layout.getLineBottom(previousLine); 9388 final int hysteresisThreshold = (previousLineBottom - previousLineTop) / 8; 9389 9390 // If new line is just before or after previous line and y position is less than 9391 // hysteresisThreshold away from previous line, keep cursor on previous line. 9392 if (((line == previousLine + 1) && ((y - previousLineBottom) < hysteresisThreshold)) || 9393 ((line == previousLine - 1) && ((previousLineTop - y) < hysteresisThreshold))) { 9394 line = previousLine; 9395 } 9396 9397 return getOffsetAtCoordinate(line, x); 9398 } 9399 9400 private int convertToLocalHorizontalCoordinate(int x) { 9401 x -= getTotalPaddingLeft(); 9402 // Clamp the position to inside of the view. 9403 x = Math.max(0, x); 9404 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 9405 x += getScrollX(); 9406 return x; 9407 } 9408 9409 private int getLineAtCoordinate(int y) { 9410 y -= getTotalPaddingTop(); 9411 // Clamp the position to inside of the view. 9412 y = Math.max(0, y); 9413 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 9414 y += getScrollY(); 9415 return getLayout().getLineForVertical(y); 9416 } 9417 9418 private int getOffsetAtCoordinate(int line, int x) { 9419 x = convertToLocalHorizontalCoordinate(x); 9420 return getLayout().getOffsetForHorizontal(line, x); 9421 } 9422 9423 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 9424 * in the view. Returns false when the position is in the empty space of left/right of text. 9425 */ 9426 private boolean isPositionOnText(int x, int y) { 9427 if (getLayout() == null) return false; 9428 9429 final int line = getLineAtCoordinate(y); 9430 x = convertToLocalHorizontalCoordinate(x); 9431 9432 if (x < getLayout().getLineLeft(line)) return false; 9433 if (x > getLayout().getLineRight(line)) return false; 9434 return true; 9435 } 9436 9437 @Override 9438 public boolean onDragEvent(DragEvent event) { 9439 switch (event.getAction()) { 9440 case DragEvent.ACTION_DRAG_STARTED: 9441 return hasInsertionController(); 9442 9443 case DragEvent.ACTION_DRAG_ENTERED: 9444 TextView.this.requestFocus(); 9445 return true; 9446 9447 case DragEvent.ACTION_DRAG_LOCATION: 9448 final int offset = getOffset((int) event.getX(), (int) event.getY()); 9449 Selection.setSelection((Spannable)mText, offset); 9450 return true; 9451 9452 case DragEvent.ACTION_DROP: 9453 onDrop(event); 9454 return true; 9455 9456 case DragEvent.ACTION_DRAG_ENDED: 9457 case DragEvent.ACTION_DRAG_EXITED: 9458 default: 9459 return true; 9460 } 9461 } 9462 9463 private void onDrop(DragEvent event) { 9464 StringBuilder content = new StringBuilder(""); 9465 ClipData clipData = event.getClipData(); 9466 final int itemCount = clipData.getItemCount(); 9467 for (int i=0; i < itemCount; i++) { 9468 Item item = clipData.getItemAt(i); 9469 content.append(item.coerceToText(TextView.this.mContext)); 9470 } 9471 9472 final int offset = getOffset((int) event.getX(), (int) event.getY()); 9473 9474 Object localState = event.getLocalState(); 9475 DragLocalState dragLocalState = null; 9476 if (localState instanceof DragLocalState) { 9477 dragLocalState = (DragLocalState) localState; 9478 } 9479 boolean dragDropIntoItself = dragLocalState != null && 9480 dragLocalState.sourceTextView == this; 9481 9482 if (dragDropIntoItself) { 9483 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 9484 // A drop inside the original selection discards the drop. 9485 return; 9486 } 9487 } 9488 9489 final int originalLength = mText.length(); 9490 long minMax = prepareSpacesAroundPaste(offset, offset, content); 9491 int min = extractRangeStartFromLong(minMax); 9492 int max = extractRangeEndFromLong(minMax); 9493 9494 Selection.setSelection((Spannable) mText, max); 9495 ((Editable) mText).replace(min, max, content); 9496 9497 if (dragDropIntoItself) { 9498 int dragSourceStart = dragLocalState.start; 9499 int dragSourceEnd = dragLocalState.end; 9500 if (max <= dragSourceStart) { 9501 // Inserting text before selection has shifted positions 9502 final int shift = mText.length() - originalLength; 9503 dragSourceStart += shift; 9504 dragSourceEnd += shift; 9505 } 9506 9507 // Delete original selection 9508 ((Editable) mText).delete(dragSourceStart, dragSourceEnd); 9509 9510 // Make sure we do not leave two adjacent spaces. 9511 if ((dragSourceStart == 0 || 9512 Character.isSpaceChar(mTransformed.charAt(dragSourceStart - 1))) && 9513 (dragSourceStart == mText.length() || 9514 Character.isSpaceChar(mTransformed.charAt(dragSourceStart)))) { 9515 final int pos = dragSourceStart == mText.length() ? 9516 dragSourceStart - 1 : dragSourceStart; 9517 ((Editable) mText).delete(pos, pos + 1); 9518 } 9519 } 9520 } 9521 9522 /** 9523 * @return True if this view supports insertion handles. 9524 */ 9525 boolean hasInsertionController() { 9526 return mInsertionControllerEnabled; 9527 } 9528 9529 /** 9530 * @return True if this view supports selection handles. 9531 */ 9532 boolean hasSelectionController() { 9533 return mSelectionControllerEnabled; 9534 } 9535 9536 InsertionPointCursorController getInsertionController() { 9537 if (!mInsertionControllerEnabled) { 9538 return null; 9539 } 9540 9541 if (mInsertionPointCursorController == null) { 9542 mInsertionPointCursorController = new InsertionPointCursorController(); 9543 9544 final ViewTreeObserver observer = getViewTreeObserver(); 9545 if (observer != null) { 9546 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 9547 } 9548 } 9549 9550 return mInsertionPointCursorController; 9551 } 9552 9553 SelectionModifierCursorController getSelectionController() { 9554 if (!mSelectionControllerEnabled) { 9555 return null; 9556 } 9557 9558 if (mSelectionModifierCursorController == null) { 9559 mSelectionModifierCursorController = new SelectionModifierCursorController(); 9560 9561 final ViewTreeObserver observer = getViewTreeObserver(); 9562 if (observer != null) { 9563 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 9564 } 9565 } 9566 9567 return mSelectionModifierCursorController; 9568 } 9569 9570 boolean isInBatchEditMode() { 9571 final InputMethodState ims = mInputMethodState; 9572 if (ims != null) { 9573 return ims.mBatchEditNesting > 0; 9574 } 9575 return mInBatchEditControllers; 9576 } 9577 9578 @ViewDebug.ExportedProperty(category = "text") 9579 private CharSequence mText; 9580 private CharSequence mTransformed; 9581 private BufferType mBufferType = BufferType.NORMAL; 9582 9583 private int mInputType = EditorInfo.TYPE_NULL; 9584 private CharSequence mHint; 9585 private Layout mHintLayout; 9586 9587 private KeyListener mInput; 9588 9589 private MovementMethod mMovement; 9590 private TransformationMethod mTransformation; 9591 private ChangeWatcher mChangeWatcher; 9592 9593 private ArrayList<TextWatcher> mListeners = null; 9594 9595 // display attributes 9596 private final TextPaint mTextPaint; 9597 private boolean mUserSetTextScaleX; 9598 private final Paint mHighlightPaint; 9599 private int mHighlightColor = 0xCC475925; 9600 /** 9601 * This is temporarily visible to fix bug 3085564 in webView. Do not rely on 9602 * this field being protected. Will be restored as private when lineHeight 9603 * feature request 3215097 is implemented 9604 * @hide 9605 */ 9606 protected Layout mLayout; 9607 9608 private long mShowCursor; 9609 private Blink mBlink; 9610 private boolean mCursorVisible = true; 9611 9612 // Cursor Controllers. 9613 private InsertionPointCursorController mInsertionPointCursorController; 9614 private SelectionModifierCursorController mSelectionModifierCursorController; 9615 private ActionMode mSelectionActionMode; 9616 private boolean mInsertionControllerEnabled; 9617 private boolean mSelectionControllerEnabled; 9618 private boolean mInBatchEditControllers; 9619 9620 // These are needed to desambiguate a long click. If the long click comes from ones of these, we 9621 // select from the current cursor position. Otherwise, select from long pressed position. 9622 private boolean mDPadCenterIsDown = false; 9623 private boolean mEnterKeyIsDown = false; 9624 private boolean mContextMenuTriggeredByKey = false; 9625 // Created once and shared by different CursorController helper methods. 9626 // Only one cursor controller is active at any time which prevent race conditions. 9627 private static Rect sCursorControllerTempRect = new Rect(); 9628 9629 private boolean mSelectAllOnFocus = false; 9630 9631 private int mGravity = Gravity.TOP | Gravity.LEFT; 9632 private boolean mHorizontallyScrolling; 9633 9634 private int mAutoLinkMask; 9635 private boolean mLinksClickable = true; 9636 9637 private float mSpacingMult = 1; 9638 private float mSpacingAdd = 0; 9639 private boolean mTextIsSelectable = false; 9640 9641 private static final int LINES = 1; 9642 private static final int EMS = LINES; 9643 private static final int PIXELS = 2; 9644 9645 private int mMaximum = Integer.MAX_VALUE; 9646 private int mMaxMode = LINES; 9647 private int mMinimum = 0; 9648 private int mMinMode = LINES; 9649 9650 private int mMaxWidth = Integer.MAX_VALUE; 9651 private int mMaxWidthMode = PIXELS; 9652 private int mMinWidth = 0; 9653 private int mMinWidthMode = PIXELS; 9654 9655 private boolean mSingleLine; 9656 private int mDesiredHeightAtMeasure = -1; 9657 private boolean mIncludePad = true; 9658 9659 // tmp primitives, so we don't alloc them on each draw 9660 private Path mHighlightPath; 9661 private boolean mHighlightPathBogus = true; 9662 private static final RectF sTempRect = new RectF(); 9663 9664 // XXX should be much larger 9665 private static final int VERY_WIDE = 16384; 9666 9667 private static final int BLINK = 500; 9668 9669 private static final int ANIMATED_SCROLL_GAP = 250; 9670 private long mLastScroll; 9671 private Scroller mScroller = null; 9672 9673 private BoringLayout.Metrics mBoring; 9674 private BoringLayout.Metrics mHintBoring; 9675 9676 private BoringLayout mSavedLayout, mSavedHintLayout; 9677 9678 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 9679 private InputFilter[] mFilters = NO_FILTERS; 9680 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 9681 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 9682 // System wide time for last cut or copy action. 9683 private static long sLastCutOrCopyTime; 9684 // Used to highlight a word when it is corrected by the IME 9685 private CorrectionHighlighter mCorrectionHighlighter; 9686 // New state used to change background based on whether this TextView is multiline. 9687 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 9688} 9689