TextView.java revision ef29bb5bc97490dda76c43c8984cbad3b388c1e4
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.content.ClipData; 25import android.content.ClipboardManager; 26import android.content.Context; 27import android.content.pm.PackageManager; 28import android.content.res.ColorStateList; 29import android.content.res.Resources; 30import android.content.res.TypedArray; 31import android.content.res.XmlResourceParser; 32import android.graphics.Canvas; 33import android.graphics.Paint; 34import android.graphics.Path; 35import android.graphics.Rect; 36import android.graphics.RectF; 37import android.graphics.Typeface; 38import android.graphics.drawable.Drawable; 39import android.inputmethodservice.ExtractEditText; 40import android.net.Uri; 41import android.os.Bundle; 42import android.os.Handler; 43import android.os.Message; 44import android.os.Parcel; 45import android.os.Parcelable; 46import android.os.ResultReceiver; 47import android.os.SystemClock; 48import android.text.BoringLayout; 49import android.text.DynamicLayout; 50import android.text.Editable; 51import android.text.GetChars; 52import android.text.GraphicsOperations; 53import android.text.InputFilter; 54import android.text.InputType; 55import android.text.Layout; 56import android.text.ParcelableSpan; 57import android.text.Selection; 58import android.text.SpanWatcher; 59import android.text.Spannable; 60import android.text.SpannableString; 61import android.text.Spanned; 62import android.text.SpannedString; 63import android.text.StaticLayout; 64import android.text.TextPaint; 65import android.text.TextUtils; 66import android.text.TextWatcher; 67import android.text.method.ArrowKeyMovementMethod; 68import android.text.method.DateKeyListener; 69import android.text.method.DateTimeKeyListener; 70import android.text.method.DialerKeyListener; 71import android.text.method.DigitsKeyListener; 72import android.text.method.KeyListener; 73import android.text.method.LinkMovementMethod; 74import android.text.method.MetaKeyKeyListener; 75import android.text.method.MovementMethod; 76import android.text.method.PasswordTransformationMethod; 77import android.text.method.SingleLineTransformationMethod; 78import android.text.method.TextKeyListener; 79import android.text.method.TimeKeyListener; 80import android.text.method.TransformationMethod; 81import android.text.style.ParagraphStyle; 82import android.text.style.URLSpan; 83import android.text.style.UpdateAppearance; 84import android.text.util.Linkify; 85import android.util.AttributeSet; 86import android.util.FloatMath; 87import android.util.Log; 88import android.util.TypedValue; 89import android.view.ActionMode; 90import android.view.ContextMenu; 91import android.view.Gravity; 92import android.view.HapticFeedbackConstants; 93import android.view.KeyEvent; 94import android.view.LayoutInflater; 95import android.view.Menu; 96import android.view.MenuItem; 97import android.view.MotionEvent; 98import android.view.View; 99import android.view.ViewDebug; 100import android.view.ViewGroup.LayoutParams; 101import android.view.ViewRoot; 102import android.view.ViewTreeObserver; 103import android.view.accessibility.AccessibilityEvent; 104import android.view.accessibility.AccessibilityManager; 105import android.view.animation.AnimationUtils; 106import android.view.inputmethod.BaseInputConnection; 107import android.view.inputmethod.CompletionInfo; 108import android.view.inputmethod.EditorInfo; 109import android.view.inputmethod.ExtractedText; 110import android.view.inputmethod.ExtractedTextRequest; 111import android.view.inputmethod.InputConnection; 112import android.view.inputmethod.InputMethodManager; 113import android.widget.RemoteViews.RemoteView; 114 115import java.io.IOException; 116import java.lang.ref.WeakReference; 117import java.util.ArrayList; 118 119/** 120 * Displays text to the user and optionally allows them to edit it. A TextView 121 * is a complete text editor, however the basic class is configured to not 122 * allow editing; see {@link EditText} for a subclass that configures the text 123 * view for editing. 124 * 125 * <p> 126 * <b>XML attributes</b> 127 * <p> 128 * See {@link android.R.styleable#TextView TextView Attributes}, 129 * {@link android.R.styleable#View View Attributes} 130 * 131 * @attr ref android.R.styleable#TextView_text 132 * @attr ref android.R.styleable#TextView_bufferType 133 * @attr ref android.R.styleable#TextView_hint 134 * @attr ref android.R.styleable#TextView_textColor 135 * @attr ref android.R.styleable#TextView_textColorHighlight 136 * @attr ref android.R.styleable#TextView_textColorHint 137 * @attr ref android.R.styleable#TextView_textAppearance 138 * @attr ref android.R.styleable#TextView_textColorLink 139 * @attr ref android.R.styleable#TextView_textSize 140 * @attr ref android.R.styleable#TextView_textScaleX 141 * @attr ref android.R.styleable#TextView_typeface 142 * @attr ref android.R.styleable#TextView_textStyle 143 * @attr ref android.R.styleable#TextView_cursorVisible 144 * @attr ref android.R.styleable#TextView_maxLines 145 * @attr ref android.R.styleable#TextView_maxHeight 146 * @attr ref android.R.styleable#TextView_lines 147 * @attr ref android.R.styleable#TextView_height 148 * @attr ref android.R.styleable#TextView_minLines 149 * @attr ref android.R.styleable#TextView_minHeight 150 * @attr ref android.R.styleable#TextView_maxEms 151 * @attr ref android.R.styleable#TextView_maxWidth 152 * @attr ref android.R.styleable#TextView_ems 153 * @attr ref android.R.styleable#TextView_width 154 * @attr ref android.R.styleable#TextView_minEms 155 * @attr ref android.R.styleable#TextView_minWidth 156 * @attr ref android.R.styleable#TextView_gravity 157 * @attr ref android.R.styleable#TextView_scrollHorizontally 158 * @attr ref android.R.styleable#TextView_password 159 * @attr ref android.R.styleable#TextView_singleLine 160 * @attr ref android.R.styleable#TextView_selectAllOnFocus 161 * @attr ref android.R.styleable#TextView_includeFontPadding 162 * @attr ref android.R.styleable#TextView_maxLength 163 * @attr ref android.R.styleable#TextView_shadowColor 164 * @attr ref android.R.styleable#TextView_shadowDx 165 * @attr ref android.R.styleable#TextView_shadowDy 166 * @attr ref android.R.styleable#TextView_shadowRadius 167 * @attr ref android.R.styleable#TextView_autoLink 168 * @attr ref android.R.styleable#TextView_linksClickable 169 * @attr ref android.R.styleable#TextView_numeric 170 * @attr ref android.R.styleable#TextView_digits 171 * @attr ref android.R.styleable#TextView_phoneNumber 172 * @attr ref android.R.styleable#TextView_inputMethod 173 * @attr ref android.R.styleable#TextView_capitalize 174 * @attr ref android.R.styleable#TextView_autoText 175 * @attr ref android.R.styleable#TextView_editable 176 * @attr ref android.R.styleable#TextView_freezesText 177 * @attr ref android.R.styleable#TextView_ellipsize 178 * @attr ref android.R.styleable#TextView_drawableTop 179 * @attr ref android.R.styleable#TextView_drawableBottom 180 * @attr ref android.R.styleable#TextView_drawableRight 181 * @attr ref android.R.styleable#TextView_drawableLeft 182 * @attr ref android.R.styleable#TextView_drawablePadding 183 * @attr ref android.R.styleable#TextView_lineSpacingExtra 184 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 185 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 186 * @attr ref android.R.styleable#TextView_inputType 187 * @attr ref android.R.styleable#TextView_imeOptions 188 * @attr ref android.R.styleable#TextView_privateImeOptions 189 * @attr ref android.R.styleable#TextView_imeActionLabel 190 * @attr ref android.R.styleable#TextView_imeActionId 191 * @attr ref android.R.styleable#TextView_editorExtras 192 */ 193@RemoteView 194public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 195 static final String LOG_TAG = "TextView"; 196 static final boolean DEBUG_EXTRACT = false; 197 198 private static final int PRIORITY = 100; 199 200 private int mCurrentAlpha = 255; 201 202 private final int[] mTempCoords = new int[2]; 203 204 private ColorStateList mTextColor; 205 private int mCurTextColor; 206 private ColorStateList mHintTextColor; 207 private ColorStateList mLinkTextColor; 208 private int mCurHintTextColor; 209 private boolean mFreezesText; 210 private boolean mFrozenWithFocus; 211 private boolean mTemporaryDetach; 212 private boolean mDispatchTemporaryDetach; 213 214 private boolean mEatTouchRelease = false; 215 private boolean mScrolled = false; 216 217 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 218 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 219 220 private float mShadowRadius, mShadowDx, mShadowDy; 221 222 private static final int PREDRAW_NOT_REGISTERED = 0; 223 private static final int PREDRAW_PENDING = 1; 224 private static final int PREDRAW_DONE = 2; 225 private int mPreDrawState = PREDRAW_NOT_REGISTERED; 226 227 private TextUtils.TruncateAt mEllipsize = null; 228 229 // Enum for the "typeface" XML parameter. 230 // TODO: How can we get this from the XML instead of hardcoding it here? 231 private static final int SANS = 1; 232 private static final int SERIF = 2; 233 private static final int MONOSPACE = 3; 234 235 // Bitfield for the "numeric" XML parameter. 236 // TODO: How can we get this from the XML instead of hardcoding it here? 237 private static final int SIGNED = 2; 238 private static final int DECIMAL = 4; 239 240 class Drawables { 241 final Rect mCompoundRect = new Rect(); 242 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight; 243 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight; 244 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight; 245 int mDrawablePadding; 246 } 247 private Drawables mDrawables; 248 249 private CharSequence mError; 250 private boolean mErrorWasChanged; 251 private ErrorPopup mPopup; 252 /** 253 * This flag is set if the TextView tries to display an error before it 254 * is attached to the window (so its position is still unknown). 255 * It causes the error to be shown later, when onAttachedToWindow() 256 * is called. 257 */ 258 private boolean mShowErrorAfterAttach; 259 260 private CharWrapper mCharWrapper = null; 261 262 private boolean mSelectionMoved = false; 263 private boolean mTouchFocusSelected = false; 264 265 private Marquee mMarquee; 266 private boolean mRestartMarquee; 267 268 private int mMarqueeRepeatLimit = 3; 269 270 class InputContentType { 271 int imeOptions = EditorInfo.IME_NULL; 272 String privateImeOptions; 273 CharSequence imeActionLabel; 274 int imeActionId; 275 Bundle extras; 276 OnEditorActionListener onEditorActionListener; 277 boolean enterDown; 278 } 279 InputContentType mInputContentType; 280 281 class InputMethodState { 282 Rect mCursorRectInWindow = new Rect(); 283 RectF mTmpRectF = new RectF(); 284 float[] mTmpOffset = new float[2]; 285 ExtractedTextRequest mExtracting; 286 final ExtractedText mTmpExtracted = new ExtractedText(); 287 int mBatchEditNesting; 288 boolean mCursorChanged; 289 boolean mSelectionModeChanged; 290 boolean mContentChanged; 291 int mChangedStart, mChangedEnd, mChangedDelta; 292 } 293 InputMethodState mInputMethodState; 294 295 private int mTextSelectHandleLeftRes; 296 private int mTextSelectHandleRightRes; 297 private int mTextSelectHandleRes; 298 299 /* 300 * Kick-start the font cache for the zygote process (to pay the cost of 301 * initializing freetype for our default font only once). 302 */ 303 static { 304 Paint p = new Paint(); 305 p.setAntiAlias(true); 306 // We don't care about the result, just the side-effect of measuring. 307 p.measureText("H"); 308 } 309 310 /** 311 * Interface definition for a callback to be invoked when an action is 312 * performed on the editor. 313 */ 314 public interface OnEditorActionListener { 315 /** 316 * Called when an action is being performed. 317 * 318 * @param v The view that was clicked. 319 * @param actionId Identifier of the action. This will be either the 320 * identifier you supplied, or {@link EditorInfo#IME_NULL 321 * EditorInfo.IME_NULL} if being called due to the enter key 322 * being pressed. 323 * @param event If triggered by an enter key, this is the event; 324 * otherwise, this is null. 325 * @return Return true if you have consumed the action, else false. 326 */ 327 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 328 } 329 330 public TextView(Context context) { 331 this(context, null); 332 } 333 334 public TextView(Context context, 335 AttributeSet attrs) { 336 this(context, attrs, com.android.internal.R.attr.textViewStyle); 337 } 338 339 @SuppressWarnings("deprecation") 340 public TextView(Context context, 341 AttributeSet attrs, 342 int defStyle) { 343 super(context, attrs, defStyle); 344 mText = ""; 345 346 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 347 mTextPaint.density = getResources().getDisplayMetrics().density; 348 mTextPaint.setCompatibilityScaling( 349 getResources().getCompatibilityInfo().applicationScale); 350 351 // If we get the paint from the skin, we should set it to left, since 352 // the layout always wants it to be left. 353 // mTextPaint.setTextAlign(Paint.Align.LEFT); 354 355 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 356 mHighlightPaint.setCompatibilityScaling( 357 getResources().getCompatibilityInfo().applicationScale); 358 359 mMovement = getDefaultMovementMethod(); 360 mTransformation = null; 361 362 TypedArray a = 363 context.obtainStyledAttributes( 364 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 365 366 int textColorHighlight = 0; 367 ColorStateList textColor = null; 368 ColorStateList textColorHint = null; 369 ColorStateList textColorLink = null; 370 int textSize = 15; 371 int typefaceIndex = -1; 372 int styleIndex = -1; 373 374 /* 375 * Look the appearance up without checking first if it exists because 376 * almost every TextView has one and it greatly simplifies the logic 377 * to be able to parse the appearance first and then let specific tags 378 * for this View override it. 379 */ 380 TypedArray appearance = null; 381 int ap = a.getResourceId(com.android.internal.R.styleable.TextView_textAppearance, -1); 382 if (ap != -1) { 383 appearance = context.obtainStyledAttributes(ap, 384 com.android.internal.R.styleable. 385 TextAppearance); 386 } 387 if (appearance != null) { 388 int n = appearance.getIndexCount(); 389 for (int i = 0; i < n; i++) { 390 int attr = appearance.getIndex(i); 391 392 switch (attr) { 393 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 394 textColorHighlight = appearance.getColor(attr, textColorHighlight); 395 break; 396 397 case com.android.internal.R.styleable.TextAppearance_textColor: 398 textColor = appearance.getColorStateList(attr); 399 break; 400 401 case com.android.internal.R.styleable.TextAppearance_textColorHint: 402 textColorHint = appearance.getColorStateList(attr); 403 break; 404 405 case com.android.internal.R.styleable.TextAppearance_textColorLink: 406 textColorLink = appearance.getColorStateList(attr); 407 break; 408 409 case com.android.internal.R.styleable.TextAppearance_textSize: 410 textSize = appearance.getDimensionPixelSize(attr, textSize); 411 break; 412 413 case com.android.internal.R.styleable.TextAppearance_typeface: 414 typefaceIndex = appearance.getInt(attr, -1); 415 break; 416 417 case com.android.internal.R.styleable.TextAppearance_textStyle: 418 styleIndex = appearance.getInt(attr, -1); 419 break; 420 } 421 } 422 423 appearance.recycle(); 424 } 425 426 boolean editable = getDefaultEditable(); 427 CharSequence inputMethod = null; 428 int numeric = 0; 429 CharSequence digits = null; 430 boolean phone = false; 431 boolean autotext = false; 432 int autocap = -1; 433 int buffertype = 0; 434 boolean selectallonfocus = false; 435 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 436 drawableBottom = null; 437 int drawablePadding = 0; 438 int ellipsize = -1; 439 boolean singleLine = false; 440 int maxlength = -1; 441 CharSequence text = ""; 442 CharSequence hint = null; 443 int shadowcolor = 0; 444 float dx = 0, dy = 0, r = 0; 445 boolean password = false; 446 int inputType = EditorInfo.TYPE_NULL; 447 448 int n = a.getIndexCount(); 449 for (int i = 0; i < n; i++) { 450 int attr = a.getIndex(i); 451 452 switch (attr) { 453 case com.android.internal.R.styleable.TextView_editable: 454 editable = a.getBoolean(attr, editable); 455 break; 456 457 case com.android.internal.R.styleable.TextView_inputMethod: 458 inputMethod = a.getText(attr); 459 break; 460 461 case com.android.internal.R.styleable.TextView_numeric: 462 numeric = a.getInt(attr, numeric); 463 break; 464 465 case com.android.internal.R.styleable.TextView_digits: 466 digits = a.getText(attr); 467 break; 468 469 case com.android.internal.R.styleable.TextView_phoneNumber: 470 phone = a.getBoolean(attr, phone); 471 break; 472 473 case com.android.internal.R.styleable.TextView_autoText: 474 autotext = a.getBoolean(attr, autotext); 475 break; 476 477 case com.android.internal.R.styleable.TextView_capitalize: 478 autocap = a.getInt(attr, autocap); 479 break; 480 481 case com.android.internal.R.styleable.TextView_bufferType: 482 buffertype = a.getInt(attr, buffertype); 483 break; 484 485 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 486 selectallonfocus = a.getBoolean(attr, selectallonfocus); 487 break; 488 489 case com.android.internal.R.styleable.TextView_autoLink: 490 mAutoLinkMask = a.getInt(attr, 0); 491 break; 492 493 case com.android.internal.R.styleable.TextView_linksClickable: 494 mLinksClickable = a.getBoolean(attr, true); 495 break; 496 497 case com.android.internal.R.styleable.TextView_drawableLeft: 498 drawableLeft = a.getDrawable(attr); 499 break; 500 501 case com.android.internal.R.styleable.TextView_drawableTop: 502 drawableTop = a.getDrawable(attr); 503 break; 504 505 case com.android.internal.R.styleable.TextView_drawableRight: 506 drawableRight = a.getDrawable(attr); 507 break; 508 509 case com.android.internal.R.styleable.TextView_drawableBottom: 510 drawableBottom = a.getDrawable(attr); 511 break; 512 513 case com.android.internal.R.styleable.TextView_drawablePadding: 514 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 515 break; 516 517 case com.android.internal.R.styleable.TextView_maxLines: 518 setMaxLines(a.getInt(attr, -1)); 519 break; 520 521 case com.android.internal.R.styleable.TextView_maxHeight: 522 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 523 break; 524 525 case com.android.internal.R.styleable.TextView_lines: 526 setLines(a.getInt(attr, -1)); 527 break; 528 529 case com.android.internal.R.styleable.TextView_height: 530 setHeight(a.getDimensionPixelSize(attr, -1)); 531 break; 532 533 case com.android.internal.R.styleable.TextView_minLines: 534 setMinLines(a.getInt(attr, -1)); 535 break; 536 537 case com.android.internal.R.styleable.TextView_minHeight: 538 setMinHeight(a.getDimensionPixelSize(attr, -1)); 539 break; 540 541 case com.android.internal.R.styleable.TextView_maxEms: 542 setMaxEms(a.getInt(attr, -1)); 543 break; 544 545 case com.android.internal.R.styleable.TextView_maxWidth: 546 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 547 break; 548 549 case com.android.internal.R.styleable.TextView_ems: 550 setEms(a.getInt(attr, -1)); 551 break; 552 553 case com.android.internal.R.styleable.TextView_width: 554 setWidth(a.getDimensionPixelSize(attr, -1)); 555 break; 556 557 case com.android.internal.R.styleable.TextView_minEms: 558 setMinEms(a.getInt(attr, -1)); 559 break; 560 561 case com.android.internal.R.styleable.TextView_minWidth: 562 setMinWidth(a.getDimensionPixelSize(attr, -1)); 563 break; 564 565 case com.android.internal.R.styleable.TextView_gravity: 566 setGravity(a.getInt(attr, -1)); 567 break; 568 569 case com.android.internal.R.styleable.TextView_hint: 570 hint = a.getText(attr); 571 break; 572 573 case com.android.internal.R.styleable.TextView_text: 574 text = a.getText(attr); 575 break; 576 577 case com.android.internal.R.styleable.TextView_scrollHorizontally: 578 if (a.getBoolean(attr, false)) { 579 setHorizontallyScrolling(true); 580 } 581 break; 582 583 case com.android.internal.R.styleable.TextView_singleLine: 584 singleLine = a.getBoolean(attr, singleLine); 585 break; 586 587 case com.android.internal.R.styleable.TextView_ellipsize: 588 ellipsize = a.getInt(attr, ellipsize); 589 break; 590 591 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 592 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 593 break; 594 595 case com.android.internal.R.styleable.TextView_includeFontPadding: 596 if (!a.getBoolean(attr, true)) { 597 setIncludeFontPadding(false); 598 } 599 break; 600 601 case com.android.internal.R.styleable.TextView_cursorVisible: 602 if (!a.getBoolean(attr, true)) { 603 setCursorVisible(false); 604 } 605 break; 606 607 case com.android.internal.R.styleable.TextView_maxLength: 608 maxlength = a.getInt(attr, -1); 609 break; 610 611 case com.android.internal.R.styleable.TextView_textScaleX: 612 setTextScaleX(a.getFloat(attr, 1.0f)); 613 break; 614 615 case com.android.internal.R.styleable.TextView_freezesText: 616 mFreezesText = a.getBoolean(attr, false); 617 break; 618 619 case com.android.internal.R.styleable.TextView_shadowColor: 620 shadowcolor = a.getInt(attr, 0); 621 break; 622 623 case com.android.internal.R.styleable.TextView_shadowDx: 624 dx = a.getFloat(attr, 0); 625 break; 626 627 case com.android.internal.R.styleable.TextView_shadowDy: 628 dy = a.getFloat(attr, 0); 629 break; 630 631 case com.android.internal.R.styleable.TextView_shadowRadius: 632 r = a.getFloat(attr, 0); 633 break; 634 635 case com.android.internal.R.styleable.TextView_enabled: 636 setEnabled(a.getBoolean(attr, isEnabled())); 637 break; 638 639 case com.android.internal.R.styleable.TextView_textColorHighlight: 640 textColorHighlight = a.getColor(attr, textColorHighlight); 641 break; 642 643 case com.android.internal.R.styleable.TextView_textColor: 644 textColor = a.getColorStateList(attr); 645 break; 646 647 case com.android.internal.R.styleable.TextView_textColorHint: 648 textColorHint = a.getColorStateList(attr); 649 break; 650 651 case com.android.internal.R.styleable.TextView_textColorLink: 652 textColorLink = a.getColorStateList(attr); 653 break; 654 655 case com.android.internal.R.styleable.TextView_textSize: 656 textSize = a.getDimensionPixelSize(attr, textSize); 657 break; 658 659 case com.android.internal.R.styleable.TextView_typeface: 660 typefaceIndex = a.getInt(attr, typefaceIndex); 661 break; 662 663 case com.android.internal.R.styleable.TextView_textStyle: 664 styleIndex = a.getInt(attr, styleIndex); 665 break; 666 667 case com.android.internal.R.styleable.TextView_password: 668 password = a.getBoolean(attr, password); 669 break; 670 671 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 672 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 673 break; 674 675 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 676 mSpacingMult = a.getFloat(attr, mSpacingMult); 677 break; 678 679 case com.android.internal.R.styleable.TextView_inputType: 680 inputType = a.getInt(attr, mInputType); 681 break; 682 683 case com.android.internal.R.styleable.TextView_imeOptions: 684 if (mInputContentType == null) { 685 mInputContentType = new InputContentType(); 686 } 687 mInputContentType.imeOptions = a.getInt(attr, 688 mInputContentType.imeOptions); 689 break; 690 691 case com.android.internal.R.styleable.TextView_imeActionLabel: 692 if (mInputContentType == null) { 693 mInputContentType = new InputContentType(); 694 } 695 mInputContentType.imeActionLabel = a.getText(attr); 696 break; 697 698 case com.android.internal.R.styleable.TextView_imeActionId: 699 if (mInputContentType == null) { 700 mInputContentType = new InputContentType(); 701 } 702 mInputContentType.imeActionId = a.getInt(attr, 703 mInputContentType.imeActionId); 704 break; 705 706 case com.android.internal.R.styleable.TextView_privateImeOptions: 707 setPrivateImeOptions(a.getString(attr)); 708 break; 709 710 case com.android.internal.R.styleable.TextView_editorExtras: 711 try { 712 setInputExtras(a.getResourceId(attr, 0)); 713 } catch (XmlPullParserException e) { 714 Log.w(LOG_TAG, "Failure reading input extras", e); 715 } catch (IOException e) { 716 Log.w(LOG_TAG, "Failure reading input extras", e); 717 } 718 break; 719 720 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 721 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 722 break; 723 724 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 725 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 726 break; 727 728 case com.android.internal.R.styleable.TextView_textSelectHandle: 729 mTextSelectHandleRes = a.getResourceId(attr, 0); 730 break; 731 } 732 } 733 a.recycle(); 734 735 BufferType bufferType = BufferType.EDITABLE; 736 737 if ((inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 738 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 739 password = true; 740 } 741 742 if (inputMethod != null) { 743 Class<?> c; 744 745 try { 746 c = Class.forName(inputMethod.toString()); 747 } catch (ClassNotFoundException ex) { 748 throw new RuntimeException(ex); 749 } 750 751 try { 752 mInput = (KeyListener) c.newInstance(); 753 } catch (InstantiationException ex) { 754 throw new RuntimeException(ex); 755 } catch (IllegalAccessException ex) { 756 throw new RuntimeException(ex); 757 } 758 try { 759 mInputType = inputType != EditorInfo.TYPE_NULL 760 ? inputType 761 : mInput.getInputType(); 762 } catch (IncompatibleClassChangeError e) { 763 mInputType = EditorInfo.TYPE_CLASS_TEXT; 764 } 765 } else if (digits != null) { 766 mInput = DigitsKeyListener.getInstance(digits.toString()); 767 // If no input type was specified, we will default to generic 768 // text, since we can't tell the IME about the set of digits 769 // that was selected. 770 mInputType = inputType != EditorInfo.TYPE_NULL 771 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 772 } else if (inputType != EditorInfo.TYPE_NULL) { 773 setInputType(inputType, true); 774 singleLine = (inputType&(EditorInfo.TYPE_MASK_CLASS 775 | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) != 776 (EditorInfo.TYPE_CLASS_TEXT 777 | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 778 } else if (phone) { 779 mInput = DialerKeyListener.getInstance(); 780 mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 781 } else if (numeric != 0) { 782 mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 783 (numeric & DECIMAL) != 0); 784 inputType = EditorInfo.TYPE_CLASS_NUMBER; 785 if ((numeric & SIGNED) != 0) { 786 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 787 } 788 if ((numeric & DECIMAL) != 0) { 789 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 790 } 791 mInputType = inputType; 792 } else if (autotext || autocap != -1) { 793 TextKeyListener.Capitalize cap; 794 795 inputType = EditorInfo.TYPE_CLASS_TEXT; 796 if (!singleLine) { 797 inputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 798 } 799 800 switch (autocap) { 801 case 1: 802 cap = TextKeyListener.Capitalize.SENTENCES; 803 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 804 break; 805 806 case 2: 807 cap = TextKeyListener.Capitalize.WORDS; 808 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 809 break; 810 811 case 3: 812 cap = TextKeyListener.Capitalize.CHARACTERS; 813 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 814 break; 815 816 default: 817 cap = TextKeyListener.Capitalize.NONE; 818 break; 819 } 820 821 mInput = TextKeyListener.getInstance(autotext, cap); 822 mInputType = inputType; 823 } else if (editable) { 824 mInput = TextKeyListener.getInstance(); 825 mInputType = EditorInfo.TYPE_CLASS_TEXT; 826 if (!singleLine) { 827 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 828 } 829 } else { 830 mInput = null; 831 832 switch (buffertype) { 833 case 0: 834 bufferType = BufferType.NORMAL; 835 break; 836 case 1: 837 bufferType = BufferType.SPANNABLE; 838 break; 839 case 2: 840 bufferType = BufferType.EDITABLE; 841 break; 842 } 843 } 844 845 if (password && (mInputType&EditorInfo.TYPE_MASK_CLASS) 846 == EditorInfo.TYPE_CLASS_TEXT) { 847 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 848 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 849 } 850 851 if (selectallonfocus) { 852 mSelectAllOnFocus = true; 853 854 if (bufferType == BufferType.NORMAL) 855 bufferType = BufferType.SPANNABLE; 856 } 857 858 setCompoundDrawablesWithIntrinsicBounds( 859 drawableLeft, drawableTop, drawableRight, drawableBottom); 860 setCompoundDrawablePadding(drawablePadding); 861 862 if (singleLine) { 863 setSingleLine(); 864 865 if (mInput == null && ellipsize < 0) { 866 ellipsize = 3; // END 867 } 868 } 869 870 switch (ellipsize) { 871 case 1: 872 setEllipsize(TextUtils.TruncateAt.START); 873 break; 874 case 2: 875 setEllipsize(TextUtils.TruncateAt.MIDDLE); 876 break; 877 case 3: 878 setEllipsize(TextUtils.TruncateAt.END); 879 break; 880 case 4: 881 setHorizontalFadingEdgeEnabled(true); 882 setEllipsize(TextUtils.TruncateAt.MARQUEE); 883 break; 884 } 885 886 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 887 setHintTextColor(textColorHint); 888 setLinkTextColor(textColorLink); 889 if (textColorHighlight != 0) { 890 setHighlightColor(textColorHighlight); 891 } 892 setRawTextSize(textSize); 893 894 if (password) { 895 setTransformationMethod(PasswordTransformationMethod.getInstance()); 896 typefaceIndex = MONOSPACE; 897 } else if ((mInputType&(EditorInfo.TYPE_MASK_CLASS 898 |EditorInfo.TYPE_MASK_VARIATION)) 899 == (EditorInfo.TYPE_CLASS_TEXT 900 |EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 901 typefaceIndex = MONOSPACE; 902 } 903 904 setTypefaceByIndex(typefaceIndex, styleIndex); 905 906 if (shadowcolor != 0) { 907 setShadowLayer(r, dx, dy, shadowcolor); 908 } 909 910 if (maxlength >= 0) { 911 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 912 } else { 913 setFilters(NO_FILTERS); 914 } 915 916 setText(text, bufferType); 917 if (hint != null) setHint(hint); 918 919 /* 920 * Views are not normally focusable unless specified to be. 921 * However, TextViews that have input or movement methods *are* 922 * focusable by default. 923 */ 924 a = context.obtainStyledAttributes(attrs, 925 com.android.internal.R.styleable.View, 926 defStyle, 0); 927 928 boolean focusable = mMovement != null || mInput != null; 929 boolean clickable = focusable; 930 boolean longClickable = focusable; 931 932 n = a.getIndexCount(); 933 for (int i = 0; i < n; i++) { 934 int attr = a.getIndex(i); 935 936 switch (attr) { 937 case com.android.internal.R.styleable.View_focusable: 938 focusable = a.getBoolean(attr, focusable); 939 break; 940 941 case com.android.internal.R.styleable.View_clickable: 942 clickable = a.getBoolean(attr, clickable); 943 break; 944 945 case com.android.internal.R.styleable.View_longClickable: 946 longClickable = a.getBoolean(attr, longClickable); 947 break; 948 } 949 } 950 a.recycle(); 951 952 setFocusable(focusable); 953 setClickable(clickable); 954 setLongClickable(longClickable); 955 956 prepareCursorControllers(); 957 } 958 959 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 960 Typeface tf = null; 961 switch (typefaceIndex) { 962 case SANS: 963 tf = Typeface.SANS_SERIF; 964 break; 965 966 case SERIF: 967 tf = Typeface.SERIF; 968 break; 969 970 case MONOSPACE: 971 tf = Typeface.MONOSPACE; 972 break; 973 } 974 975 setTypeface(tf, styleIndex); 976 } 977 978 /** 979 * Sets the typeface and style in which the text should be displayed, 980 * and turns on the fake bold and italic bits in the Paint if the 981 * Typeface that you provided does not have all the bits in the 982 * style that you specified. 983 * 984 * @attr ref android.R.styleable#TextView_typeface 985 * @attr ref android.R.styleable#TextView_textStyle 986 */ 987 public void setTypeface(Typeface tf, int style) { 988 if (style > 0) { 989 if (tf == null) { 990 tf = Typeface.defaultFromStyle(style); 991 } else { 992 tf = Typeface.create(tf, style); 993 } 994 995 setTypeface(tf); 996 // now compute what (if any) algorithmic styling is needed 997 int typefaceStyle = tf != null ? tf.getStyle() : 0; 998 int need = style & ~typefaceStyle; 999 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1000 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1001 } else { 1002 mTextPaint.setFakeBoldText(false); 1003 mTextPaint.setTextSkewX(0); 1004 setTypeface(tf); 1005 } 1006 } 1007 1008 /** 1009 * Subclasses override this to specify that they have a KeyListener 1010 * by default even if not specifically called for in the XML options. 1011 */ 1012 protected boolean getDefaultEditable() { 1013 return false; 1014 } 1015 1016 /** 1017 * Subclasses override this to specify a default movement method. 1018 */ 1019 protected MovementMethod getDefaultMovementMethod() { 1020 return null; 1021 } 1022 1023 /** 1024 * Return the text the TextView is displaying. If setText() was called with 1025 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1026 * the return value from this method to Spannable or Editable, respectively. 1027 * 1028 * Note: The content of the return value should not be modified. If you want 1029 * a modifiable one, you should make your own copy first. 1030 */ 1031 @ViewDebug.CapturedViewProperty 1032 public CharSequence getText() { 1033 return mText; 1034 } 1035 1036 /** 1037 * Returns the length, in characters, of the text managed by this TextView 1038 */ 1039 public int length() { 1040 return mText.length(); 1041 } 1042 1043 /** 1044 * Return the text the TextView is displaying as an Editable object. If 1045 * the text is not editable, null is returned. 1046 * 1047 * @see #getText 1048 */ 1049 public Editable getEditableText() { 1050 return (mText instanceof Editable) ? (Editable)mText : null; 1051 } 1052 1053 /** 1054 * @return the height of one standard line in pixels. Note that markup 1055 * within the text can cause individual lines to be taller or shorter 1056 * than this height, and the layout may contain additional first- 1057 * or last-line padding. 1058 */ 1059 public int getLineHeight() { 1060 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult 1061 + mSpacingAdd); 1062 } 1063 1064 /** 1065 * @return the Layout that is currently being used to display the text. 1066 * This can be null if the text or width has recently changes. 1067 */ 1068 public final Layout getLayout() { 1069 return mLayout; 1070 } 1071 1072 /** 1073 * @return the current key listener for this TextView. 1074 * This will frequently be null for non-EditText TextViews. 1075 */ 1076 public final KeyListener getKeyListener() { 1077 return mInput; 1078 } 1079 1080 /** 1081 * Sets the key listener to be used with this TextView. This can be null 1082 * to disallow user input. Note that this method has significant and 1083 * subtle interactions with soft keyboards and other input method: 1084 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1085 * for important details. Calling this method will replace the current 1086 * content type of the text view with the content type returned by the 1087 * key listener. 1088 * <p> 1089 * Be warned that if you want a TextView with a key listener or movement 1090 * method not to be focusable, or if you want a TextView without a 1091 * key listener or movement method to be focusable, you must call 1092 * {@link #setFocusable} again after calling this to get the focusability 1093 * back the way you want it. 1094 * 1095 * @attr ref android.R.styleable#TextView_numeric 1096 * @attr ref android.R.styleable#TextView_digits 1097 * @attr ref android.R.styleable#TextView_phoneNumber 1098 * @attr ref android.R.styleable#TextView_inputMethod 1099 * @attr ref android.R.styleable#TextView_capitalize 1100 * @attr ref android.R.styleable#TextView_autoText 1101 */ 1102 public void setKeyListener(KeyListener input) { 1103 setKeyListenerOnly(input); 1104 fixFocusableAndClickableSettings(); 1105 1106 if (input != null) { 1107 try { 1108 mInputType = mInput.getInputType(); 1109 } catch (IncompatibleClassChangeError e) { 1110 mInputType = EditorInfo.TYPE_CLASS_TEXT; 1111 } 1112 if ((mInputType&EditorInfo.TYPE_MASK_CLASS) 1113 == EditorInfo.TYPE_CLASS_TEXT) { 1114 if (mSingleLine) { 1115 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 1116 } else { 1117 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 1118 } 1119 } 1120 } else { 1121 mInputType = EditorInfo.TYPE_NULL; 1122 } 1123 1124 InputMethodManager imm = InputMethodManager.peekInstance(); 1125 if (imm != null) imm.restartInput(this); 1126 } 1127 1128 private void setKeyListenerOnly(KeyListener input) { 1129 mInput = input; 1130 if (mInput != null && !(mText instanceof Editable)) 1131 setText(mText); 1132 1133 setFilters((Editable) mText, mFilters); 1134 } 1135 1136 /** 1137 * @return the movement method being used for this TextView. 1138 * This will frequently be null for non-EditText TextViews. 1139 */ 1140 public final MovementMethod getMovementMethod() { 1141 return mMovement; 1142 } 1143 1144 /** 1145 * Sets the movement method (arrow key handler) to be used for 1146 * this TextView. This can be null to disallow using the arrow keys 1147 * to move the cursor or scroll the view. 1148 * <p> 1149 * Be warned that if you want a TextView with a key listener or movement 1150 * method not to be focusable, or if you want a TextView without a 1151 * key listener or movement method to be focusable, you must call 1152 * {@link #setFocusable} again after calling this to get the focusability 1153 * back the way you want it. 1154 */ 1155 public final void setMovementMethod(MovementMethod movement) { 1156 mMovement = movement; 1157 1158 if (mMovement != null && !(mText instanceof Spannable)) 1159 setText(mText); 1160 1161 fixFocusableAndClickableSettings(); 1162 1163 // SelectionModifierCursorController depends on canSelectText, which depends on mMovement 1164 prepareCursorControllers(); 1165 } 1166 1167 private void fixFocusableAndClickableSettings() { 1168 if ((mMovement != null) || mInput != null) { 1169 setFocusable(true); 1170 setClickable(true); 1171 setLongClickable(true); 1172 } else { 1173 setFocusable(false); 1174 setClickable(false); 1175 setLongClickable(false); 1176 } 1177 } 1178 1179 /** 1180 * @return the current transformation method for this TextView. 1181 * This will frequently be null except for single-line and password 1182 * fields. 1183 */ 1184 public final TransformationMethod getTransformationMethod() { 1185 return mTransformation; 1186 } 1187 1188 /** 1189 * Sets the transformation that is applied to the text that this 1190 * TextView is displaying. 1191 * 1192 * @attr ref android.R.styleable#TextView_password 1193 * @attr ref android.R.styleable#TextView_singleLine 1194 */ 1195 public final void setTransformationMethod(TransformationMethod method) { 1196 if (method == mTransformation) { 1197 // Avoid the setText() below if the transformation is 1198 // the same. 1199 return; 1200 } 1201 if (mTransformation != null) { 1202 if (mText instanceof Spannable) { 1203 ((Spannable) mText).removeSpan(mTransformation); 1204 } 1205 } 1206 1207 mTransformation = method; 1208 1209 setText(mText); 1210 } 1211 1212 /** 1213 * Returns the top padding of the view, plus space for the top 1214 * Drawable if any. 1215 */ 1216 public int getCompoundPaddingTop() { 1217 final Drawables dr = mDrawables; 1218 if (dr == null || dr.mDrawableTop == null) { 1219 return mPaddingTop; 1220 } else { 1221 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1222 } 1223 } 1224 1225 /** 1226 * Returns the bottom padding of the view, plus space for the bottom 1227 * Drawable if any. 1228 */ 1229 public int getCompoundPaddingBottom() { 1230 final Drawables dr = mDrawables; 1231 if (dr == null || dr.mDrawableBottom == null) { 1232 return mPaddingBottom; 1233 } else { 1234 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1235 } 1236 } 1237 1238 /** 1239 * Returns the left padding of the view, plus space for the left 1240 * Drawable if any. 1241 */ 1242 public int getCompoundPaddingLeft() { 1243 final Drawables dr = mDrawables; 1244 if (dr == null || dr.mDrawableLeft == null) { 1245 return mPaddingLeft; 1246 } else { 1247 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1248 } 1249 } 1250 1251 /** 1252 * Returns the right padding of the view, plus space for the right 1253 * Drawable if any. 1254 */ 1255 public int getCompoundPaddingRight() { 1256 final Drawables dr = mDrawables; 1257 if (dr == null || dr.mDrawableRight == null) { 1258 return mPaddingRight; 1259 } else { 1260 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1261 } 1262 } 1263 1264 /** 1265 * Returns the extended top padding of the view, including both the 1266 * top Drawable if any and any extra space to keep more than maxLines 1267 * of text from showing. It is only valid to call this after measuring. 1268 */ 1269 public int getExtendedPaddingTop() { 1270 if (mMaxMode != LINES) { 1271 return getCompoundPaddingTop(); 1272 } 1273 1274 if (mLayout.getLineCount() <= mMaximum) { 1275 return getCompoundPaddingTop(); 1276 } 1277 1278 int top = getCompoundPaddingTop(); 1279 int bottom = getCompoundPaddingBottom(); 1280 int viewht = getHeight() - top - bottom; 1281 int layoutht = mLayout.getLineTop(mMaximum); 1282 1283 if (layoutht >= viewht) { 1284 return top; 1285 } 1286 1287 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1288 if (gravity == Gravity.TOP) { 1289 return top; 1290 } else if (gravity == Gravity.BOTTOM) { 1291 return top + viewht - layoutht; 1292 } else { // (gravity == Gravity.CENTER_VERTICAL) 1293 return top + (viewht - layoutht) / 2; 1294 } 1295 } 1296 1297 /** 1298 * Returns the extended bottom padding of the view, including both the 1299 * bottom Drawable if any and any extra space to keep more than maxLines 1300 * of text from showing. It is only valid to call this after measuring. 1301 */ 1302 public int getExtendedPaddingBottom() { 1303 if (mMaxMode != LINES) { 1304 return getCompoundPaddingBottom(); 1305 } 1306 1307 if (mLayout.getLineCount() <= mMaximum) { 1308 return getCompoundPaddingBottom(); 1309 } 1310 1311 int top = getCompoundPaddingTop(); 1312 int bottom = getCompoundPaddingBottom(); 1313 int viewht = getHeight() - top - bottom; 1314 int layoutht = mLayout.getLineTop(mMaximum); 1315 1316 if (layoutht >= viewht) { 1317 return bottom; 1318 } 1319 1320 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1321 if (gravity == Gravity.TOP) { 1322 return bottom + viewht - layoutht; 1323 } else if (gravity == Gravity.BOTTOM) { 1324 return bottom; 1325 } else { // (gravity == Gravity.CENTER_VERTICAL) 1326 return bottom + (viewht - layoutht) / 2; 1327 } 1328 } 1329 1330 /** 1331 * Returns the total left padding of the view, including the left 1332 * Drawable if any. 1333 */ 1334 public int getTotalPaddingLeft() { 1335 return getCompoundPaddingLeft(); 1336 } 1337 1338 /** 1339 * Returns the total right padding of the view, including the right 1340 * Drawable if any. 1341 */ 1342 public int getTotalPaddingRight() { 1343 return getCompoundPaddingRight(); 1344 } 1345 1346 /** 1347 * Returns the total top padding of the view, including the top 1348 * Drawable if any, the extra space to keep more than maxLines 1349 * from showing, and the vertical offset for gravity, if any. 1350 */ 1351 public int getTotalPaddingTop() { 1352 return getExtendedPaddingTop() + getVerticalOffset(true); 1353 } 1354 1355 /** 1356 * Returns the total bottom padding of the view, including the bottom 1357 * Drawable if any, the extra space to keep more than maxLines 1358 * from showing, and the vertical offset for gravity, if any. 1359 */ 1360 public int getTotalPaddingBottom() { 1361 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1362 } 1363 1364 /** 1365 * Sets the Drawables (if any) to appear to the left of, above, 1366 * to the right of, and below the text. Use null if you do not 1367 * want a Drawable there. The Drawables must already have had 1368 * {@link Drawable#setBounds} called. 1369 * 1370 * @attr ref android.R.styleable#TextView_drawableLeft 1371 * @attr ref android.R.styleable#TextView_drawableTop 1372 * @attr ref android.R.styleable#TextView_drawableRight 1373 * @attr ref android.R.styleable#TextView_drawableBottom 1374 */ 1375 public void setCompoundDrawables(Drawable left, Drawable top, 1376 Drawable right, Drawable bottom) { 1377 Drawables dr = mDrawables; 1378 1379 final boolean drawables = left != null || top != null 1380 || right != null || bottom != null; 1381 1382 if (!drawables) { 1383 // Clearing drawables... can we free the data structure? 1384 if (dr != null) { 1385 if (dr.mDrawablePadding == 0) { 1386 mDrawables = null; 1387 } else { 1388 // We need to retain the last set padding, so just clear 1389 // out all of the fields in the existing structure. 1390 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1391 dr.mDrawableLeft = null; 1392 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1393 dr.mDrawableTop = null; 1394 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1395 dr.mDrawableRight = null; 1396 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1397 dr.mDrawableBottom = null; 1398 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1399 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1400 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1401 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1402 } 1403 } 1404 } else { 1405 if (dr == null) { 1406 mDrawables = dr = new Drawables(); 1407 } 1408 1409 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1410 dr.mDrawableLeft.setCallback(null); 1411 } 1412 dr.mDrawableLeft = left; 1413 1414 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1415 dr.mDrawableTop.setCallback(null); 1416 } 1417 dr.mDrawableTop = top; 1418 1419 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1420 dr.mDrawableRight.setCallback(null); 1421 } 1422 dr.mDrawableRight = right; 1423 1424 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1425 dr.mDrawableBottom.setCallback(null); 1426 } 1427 dr.mDrawableBottom = bottom; 1428 1429 final Rect compoundRect = dr.mCompoundRect; 1430 int[] state; 1431 1432 state = getDrawableState(); 1433 1434 if (left != null) { 1435 left.setState(state); 1436 left.copyBounds(compoundRect); 1437 left.setCallback(this); 1438 dr.mDrawableSizeLeft = compoundRect.width(); 1439 dr.mDrawableHeightLeft = compoundRect.height(); 1440 } else { 1441 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1442 } 1443 1444 if (right != null) { 1445 right.setState(state); 1446 right.copyBounds(compoundRect); 1447 right.setCallback(this); 1448 dr.mDrawableSizeRight = compoundRect.width(); 1449 dr.mDrawableHeightRight = compoundRect.height(); 1450 } else { 1451 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1452 } 1453 1454 if (top != null) { 1455 top.setState(state); 1456 top.copyBounds(compoundRect); 1457 top.setCallback(this); 1458 dr.mDrawableSizeTop = compoundRect.height(); 1459 dr.mDrawableWidthTop = compoundRect.width(); 1460 } else { 1461 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1462 } 1463 1464 if (bottom != null) { 1465 bottom.setState(state); 1466 bottom.copyBounds(compoundRect); 1467 bottom.setCallback(this); 1468 dr.mDrawableSizeBottom = compoundRect.height(); 1469 dr.mDrawableWidthBottom = compoundRect.width(); 1470 } else { 1471 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1472 } 1473 } 1474 1475 invalidate(); 1476 requestLayout(); 1477 } 1478 1479 /** 1480 * Sets the Drawables (if any) to appear to the left of, above, 1481 * to the right of, and below the text. Use 0 if you do not 1482 * want a Drawable there. The Drawables' bounds will be set to 1483 * their intrinsic bounds. 1484 * 1485 * @param left Resource identifier of the left Drawable. 1486 * @param top Resource identifier of the top Drawable. 1487 * @param right Resource identifier of the right Drawable. 1488 * @param bottom Resource identifier of the bottom Drawable. 1489 * 1490 * @attr ref android.R.styleable#TextView_drawableLeft 1491 * @attr ref android.R.styleable#TextView_drawableTop 1492 * @attr ref android.R.styleable#TextView_drawableRight 1493 * @attr ref android.R.styleable#TextView_drawableBottom 1494 */ 1495 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1496 final Resources resources = getContext().getResources(); 1497 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1498 top != 0 ? resources.getDrawable(top) : null, 1499 right != 0 ? resources.getDrawable(right) : null, 1500 bottom != 0 ? resources.getDrawable(bottom) : null); 1501 } 1502 1503 /** 1504 * Sets the Drawables (if any) to appear to the left of, above, 1505 * to the right of, and below the text. Use null if you do not 1506 * want a Drawable there. The Drawables' bounds will be set to 1507 * their intrinsic bounds. 1508 * 1509 * @attr ref android.R.styleable#TextView_drawableLeft 1510 * @attr ref android.R.styleable#TextView_drawableTop 1511 * @attr ref android.R.styleable#TextView_drawableRight 1512 * @attr ref android.R.styleable#TextView_drawableBottom 1513 */ 1514 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1515 Drawable right, Drawable bottom) { 1516 1517 if (left != null) { 1518 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1519 } 1520 if (right != null) { 1521 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1522 } 1523 if (top != null) { 1524 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1525 } 1526 if (bottom != null) { 1527 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1528 } 1529 setCompoundDrawables(left, top, right, bottom); 1530 } 1531 1532 /** 1533 * Returns drawables for the left, top, right, and bottom borders. 1534 */ 1535 public Drawable[] getCompoundDrawables() { 1536 final Drawables dr = mDrawables; 1537 if (dr != null) { 1538 return new Drawable[] { 1539 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 1540 }; 1541 } else { 1542 return new Drawable[] { null, null, null, null }; 1543 } 1544 } 1545 1546 /** 1547 * Sets the size of the padding between the compound drawables and 1548 * the text. 1549 * 1550 * @attr ref android.R.styleable#TextView_drawablePadding 1551 */ 1552 public void setCompoundDrawablePadding(int pad) { 1553 Drawables dr = mDrawables; 1554 if (pad == 0) { 1555 if (dr != null) { 1556 dr.mDrawablePadding = pad; 1557 } 1558 } else { 1559 if (dr == null) { 1560 mDrawables = dr = new Drawables(); 1561 } 1562 dr.mDrawablePadding = pad; 1563 } 1564 1565 invalidate(); 1566 requestLayout(); 1567 } 1568 1569 /** 1570 * Returns the padding between the compound drawables and the text. 1571 */ 1572 public int getCompoundDrawablePadding() { 1573 final Drawables dr = mDrawables; 1574 return dr != null ? dr.mDrawablePadding : 0; 1575 } 1576 1577 @Override 1578 public void setPadding(int left, int top, int right, int bottom) { 1579 if (left != mPaddingLeft || 1580 right != mPaddingRight || 1581 top != mPaddingTop || 1582 bottom != mPaddingBottom) { 1583 nullLayouts(); 1584 } 1585 1586 // the super call will requestLayout() 1587 super.setPadding(left, top, right, bottom); 1588 invalidate(); 1589 } 1590 1591 /** 1592 * Gets the autolink mask of the text. See {@link 1593 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1594 * possible values. 1595 * 1596 * @attr ref android.R.styleable#TextView_autoLink 1597 */ 1598 public final int getAutoLinkMask() { 1599 return mAutoLinkMask; 1600 } 1601 1602 /** 1603 * Sets the text color, size, style, hint color, and highlight color 1604 * from the specified TextAppearance resource. 1605 */ 1606 public void setTextAppearance(Context context, int resid) { 1607 TypedArray appearance = 1608 context.obtainStyledAttributes(resid, 1609 com.android.internal.R.styleable.TextAppearance); 1610 1611 int color; 1612 ColorStateList colors; 1613 int ts; 1614 1615 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 1616 if (color != 0) { 1617 setHighlightColor(color); 1618 } 1619 1620 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1621 TextAppearance_textColor); 1622 if (colors != null) { 1623 setTextColor(colors); 1624 } 1625 1626 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 1627 TextAppearance_textSize, 0); 1628 if (ts != 0) { 1629 setRawTextSize(ts); 1630 } 1631 1632 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1633 TextAppearance_textColorHint); 1634 if (colors != null) { 1635 setHintTextColor(colors); 1636 } 1637 1638 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1639 TextAppearance_textColorLink); 1640 if (colors != null) { 1641 setLinkTextColor(colors); 1642 } 1643 1644 int typefaceIndex, styleIndex; 1645 1646 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 1647 TextAppearance_typeface, -1); 1648 styleIndex = appearance.getInt(com.android.internal.R.styleable. 1649 TextAppearance_textStyle, -1); 1650 1651 setTypefaceByIndex(typefaceIndex, styleIndex); 1652 appearance.recycle(); 1653 } 1654 1655 /** 1656 * @return the size (in pixels) of the default text size in this TextView. 1657 */ 1658 public float getTextSize() { 1659 return mTextPaint.getTextSize(); 1660 } 1661 1662 /** 1663 * Set the default text size to the given value, interpreted as "scaled 1664 * pixel" units. This size is adjusted based on the current density and 1665 * user font size preference. 1666 * 1667 * @param size The scaled pixel size. 1668 * 1669 * @attr ref android.R.styleable#TextView_textSize 1670 */ 1671 @android.view.RemotableViewMethod 1672 public void setTextSize(float size) { 1673 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 1674 } 1675 1676 /** 1677 * Set the default text size to a given unit and value. See {@link 1678 * TypedValue} for the possible dimension units. 1679 * 1680 * @param unit The desired dimension unit. 1681 * @param size The desired size in the given units. 1682 * 1683 * @attr ref android.R.styleable#TextView_textSize 1684 */ 1685 public void setTextSize(int unit, float size) { 1686 Context c = getContext(); 1687 Resources r; 1688 1689 if (c == null) 1690 r = Resources.getSystem(); 1691 else 1692 r = c.getResources(); 1693 1694 setRawTextSize(TypedValue.applyDimension( 1695 unit, size, r.getDisplayMetrics())); 1696 } 1697 1698 private void setRawTextSize(float size) { 1699 if (size != mTextPaint.getTextSize()) { 1700 mTextPaint.setTextSize(size); 1701 1702 if (mLayout != null) { 1703 nullLayouts(); 1704 requestLayout(); 1705 invalidate(); 1706 } 1707 } 1708 } 1709 1710 /** 1711 * @return the extent by which text is currently being stretched 1712 * horizontally. This will usually be 1. 1713 */ 1714 public float getTextScaleX() { 1715 return mTextPaint.getTextScaleX(); 1716 } 1717 1718 /** 1719 * Sets the extent by which text should be stretched horizontally. 1720 * 1721 * @attr ref android.R.styleable#TextView_textScaleX 1722 */ 1723 @android.view.RemotableViewMethod 1724 public void setTextScaleX(float size) { 1725 if (size != mTextPaint.getTextScaleX()) { 1726 mUserSetTextScaleX = true; 1727 mTextPaint.setTextScaleX(size); 1728 1729 if (mLayout != null) { 1730 nullLayouts(); 1731 requestLayout(); 1732 invalidate(); 1733 } 1734 } 1735 } 1736 1737 /** 1738 * Sets the typeface and style in which the text should be displayed. 1739 * Note that not all Typeface families actually have bold and italic 1740 * variants, so you may need to use 1741 * {@link #setTypeface(Typeface, int)} to get the appearance 1742 * that you actually want. 1743 * 1744 * @attr ref android.R.styleable#TextView_typeface 1745 * @attr ref android.R.styleable#TextView_textStyle 1746 */ 1747 public void setTypeface(Typeface tf) { 1748 if (mTextPaint.getTypeface() != tf) { 1749 mTextPaint.setTypeface(tf); 1750 1751 if (mLayout != null) { 1752 nullLayouts(); 1753 requestLayout(); 1754 invalidate(); 1755 } 1756 } 1757 } 1758 1759 /** 1760 * @return the current typeface and style in which the text is being 1761 * displayed. 1762 */ 1763 public Typeface getTypeface() { 1764 return mTextPaint.getTypeface(); 1765 } 1766 1767 /** 1768 * Sets the text color for all the states (normal, selected, 1769 * focused) to be this color. 1770 * 1771 * @attr ref android.R.styleable#TextView_textColor 1772 */ 1773 @android.view.RemotableViewMethod 1774 public void setTextColor(int color) { 1775 mTextColor = ColorStateList.valueOf(color); 1776 updateTextColors(); 1777 } 1778 1779 /** 1780 * Sets the text color. 1781 * 1782 * @attr ref android.R.styleable#TextView_textColor 1783 */ 1784 public void setTextColor(ColorStateList colors) { 1785 if (colors == null) { 1786 throw new NullPointerException(); 1787 } 1788 1789 mTextColor = colors; 1790 updateTextColors(); 1791 } 1792 1793 /** 1794 * Return the set of text colors. 1795 * 1796 * @return Returns the set of text colors. 1797 */ 1798 public final ColorStateList getTextColors() { 1799 return mTextColor; 1800 } 1801 1802 /** 1803 * <p>Return the current color selected for normal text.</p> 1804 * 1805 * @return Returns the current text color. 1806 */ 1807 public final int getCurrentTextColor() { 1808 return mCurTextColor; 1809 } 1810 1811 /** 1812 * Sets the color used to display the selection highlight. 1813 * 1814 * @attr ref android.R.styleable#TextView_textColorHighlight 1815 */ 1816 @android.view.RemotableViewMethod 1817 public void setHighlightColor(int color) { 1818 if (mHighlightColor != color) { 1819 mHighlightColor = color; 1820 invalidate(); 1821 } 1822 } 1823 1824 /** 1825 * Gives the text a shadow of the specified radius and color, the specified 1826 * distance from its normal position. 1827 * 1828 * @attr ref android.R.styleable#TextView_shadowColor 1829 * @attr ref android.R.styleable#TextView_shadowDx 1830 * @attr ref android.R.styleable#TextView_shadowDy 1831 * @attr ref android.R.styleable#TextView_shadowRadius 1832 */ 1833 public void setShadowLayer(float radius, float dx, float dy, int color) { 1834 mTextPaint.setShadowLayer(radius, dx, dy, color); 1835 1836 mShadowRadius = radius; 1837 mShadowDx = dx; 1838 mShadowDy = dy; 1839 1840 invalidate(); 1841 } 1842 1843 /** 1844 * @return the base paint used for the text. Please use this only to 1845 * consult the Paint's properties and not to change them. 1846 */ 1847 public TextPaint getPaint() { 1848 return mTextPaint; 1849 } 1850 1851 /** 1852 * Sets the autolink mask of the text. See {@link 1853 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1854 * possible values. 1855 * 1856 * @attr ref android.R.styleable#TextView_autoLink 1857 */ 1858 @android.view.RemotableViewMethod 1859 public final void setAutoLinkMask(int mask) { 1860 mAutoLinkMask = mask; 1861 } 1862 1863 /** 1864 * Sets whether the movement method will automatically be set to 1865 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1866 * set to nonzero and links are detected in {@link #setText}. 1867 * The default is true. 1868 * 1869 * @attr ref android.R.styleable#TextView_linksClickable 1870 */ 1871 @android.view.RemotableViewMethod 1872 public final void setLinksClickable(boolean whether) { 1873 mLinksClickable = whether; 1874 } 1875 1876 /** 1877 * Returns whether the movement method will automatically be set to 1878 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1879 * set to nonzero and links are detected in {@link #setText}. 1880 * The default is true. 1881 * 1882 * @attr ref android.R.styleable#TextView_linksClickable 1883 */ 1884 public final boolean getLinksClickable() { 1885 return mLinksClickable; 1886 } 1887 1888 /** 1889 * Returns the list of URLSpans attached to the text 1890 * (by {@link Linkify} or otherwise) if any. You can call 1891 * {@link URLSpan#getURL} on them to find where they link to 1892 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 1893 * to find the region of the text they are attached to. 1894 */ 1895 public URLSpan[] getUrls() { 1896 if (mText instanceof Spanned) { 1897 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 1898 } else { 1899 return new URLSpan[0]; 1900 } 1901 } 1902 1903 /** 1904 * Sets the color of the hint text. 1905 * 1906 * @attr ref android.R.styleable#TextView_textColorHint 1907 */ 1908 @android.view.RemotableViewMethod 1909 public final void setHintTextColor(int color) { 1910 mHintTextColor = ColorStateList.valueOf(color); 1911 updateTextColors(); 1912 } 1913 1914 /** 1915 * Sets the color of the hint text. 1916 * 1917 * @attr ref android.R.styleable#TextView_textColorHint 1918 */ 1919 public final void setHintTextColor(ColorStateList colors) { 1920 mHintTextColor = colors; 1921 updateTextColors(); 1922 } 1923 1924 /** 1925 * <p>Return the color used to paint the hint text.</p> 1926 * 1927 * @return Returns the list of hint text colors. 1928 */ 1929 public final ColorStateList getHintTextColors() { 1930 return mHintTextColor; 1931 } 1932 1933 /** 1934 * <p>Return the current color selected to paint the hint text.</p> 1935 * 1936 * @return Returns the current hint text color. 1937 */ 1938 public final int getCurrentHintTextColor() { 1939 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 1940 } 1941 1942 /** 1943 * Sets the color of links in the text. 1944 * 1945 * @attr ref android.R.styleable#TextView_textColorLink 1946 */ 1947 @android.view.RemotableViewMethod 1948 public final void setLinkTextColor(int color) { 1949 mLinkTextColor = ColorStateList.valueOf(color); 1950 updateTextColors(); 1951 } 1952 1953 /** 1954 * Sets the color of links in the text. 1955 * 1956 * @attr ref android.R.styleable#TextView_textColorLink 1957 */ 1958 public final void setLinkTextColor(ColorStateList colors) { 1959 mLinkTextColor = colors; 1960 updateTextColors(); 1961 } 1962 1963 /** 1964 * <p>Returns the color used to paint links in the text.</p> 1965 * 1966 * @return Returns the list of link text colors. 1967 */ 1968 public final ColorStateList getLinkTextColors() { 1969 return mLinkTextColor; 1970 } 1971 1972 /** 1973 * Sets the horizontal alignment of the text and the 1974 * vertical gravity that will be used when there is extra space 1975 * in the TextView beyond what is required for the text itself. 1976 * 1977 * @see android.view.Gravity 1978 * @attr ref android.R.styleable#TextView_gravity 1979 */ 1980 public void setGravity(int gravity) { 1981 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == 0) { 1982 gravity |= Gravity.LEFT; 1983 } 1984 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 1985 gravity |= Gravity.TOP; 1986 } 1987 1988 boolean newLayout = false; 1989 1990 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) != 1991 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK)) { 1992 newLayout = true; 1993 } 1994 1995 if (gravity != mGravity) { 1996 invalidate(); 1997 } 1998 1999 mGravity = gravity; 2000 2001 if (mLayout != null && newLayout) { 2002 // XXX this is heavy-handed because no actual content changes. 2003 int want = mLayout.getWidth(); 2004 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2005 2006 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2007 mRight - mLeft - getCompoundPaddingLeft() - 2008 getCompoundPaddingRight(), true); 2009 } 2010 } 2011 2012 /** 2013 * Returns the horizontal and vertical alignment of this TextView. 2014 * 2015 * @see android.view.Gravity 2016 * @attr ref android.R.styleable#TextView_gravity 2017 */ 2018 public int getGravity() { 2019 return mGravity; 2020 } 2021 2022 /** 2023 * @return the flags on the Paint being used to display the text. 2024 * @see Paint#getFlags 2025 */ 2026 public int getPaintFlags() { 2027 return mTextPaint.getFlags(); 2028 } 2029 2030 /** 2031 * Sets flags on the Paint being used to display the text and 2032 * reflows the text if they are different from the old flags. 2033 * @see Paint#setFlags 2034 */ 2035 @android.view.RemotableViewMethod 2036 public void setPaintFlags(int flags) { 2037 if (mTextPaint.getFlags() != flags) { 2038 mTextPaint.setFlags(flags); 2039 2040 if (mLayout != null) { 2041 nullLayouts(); 2042 requestLayout(); 2043 invalidate(); 2044 } 2045 } 2046 } 2047 2048 /** 2049 * Sets whether the text should be allowed to be wider than the 2050 * View is. If false, it will be wrapped to the width of the View. 2051 * 2052 * @attr ref android.R.styleable#TextView_scrollHorizontally 2053 */ 2054 public void setHorizontallyScrolling(boolean whether) { 2055 mHorizontallyScrolling = whether; 2056 2057 if (mLayout != null) { 2058 nullLayouts(); 2059 requestLayout(); 2060 invalidate(); 2061 } 2062 } 2063 2064 /** 2065 * Makes the TextView at least this many lines tall 2066 * 2067 * @attr ref android.R.styleable#TextView_minLines 2068 */ 2069 @android.view.RemotableViewMethod 2070 public void setMinLines(int minlines) { 2071 mMinimum = minlines; 2072 mMinMode = LINES; 2073 2074 requestLayout(); 2075 invalidate(); 2076 } 2077 2078 /** 2079 * Makes the TextView at least this many pixels tall 2080 * 2081 * @attr ref android.R.styleable#TextView_minHeight 2082 */ 2083 @android.view.RemotableViewMethod 2084 public void setMinHeight(int minHeight) { 2085 mMinimum = minHeight; 2086 mMinMode = PIXELS; 2087 2088 requestLayout(); 2089 invalidate(); 2090 } 2091 2092 /** 2093 * Makes the TextView at most this many lines tall 2094 * 2095 * @attr ref android.R.styleable#TextView_maxLines 2096 */ 2097 @android.view.RemotableViewMethod 2098 public void setMaxLines(int maxlines) { 2099 mMaximum = maxlines; 2100 mMaxMode = LINES; 2101 2102 requestLayout(); 2103 invalidate(); 2104 } 2105 2106 /** 2107 * Makes the TextView at most this many pixels tall 2108 * 2109 * @attr ref android.R.styleable#TextView_maxHeight 2110 */ 2111 @android.view.RemotableViewMethod 2112 public void setMaxHeight(int maxHeight) { 2113 mMaximum = maxHeight; 2114 mMaxMode = PIXELS; 2115 2116 requestLayout(); 2117 invalidate(); 2118 } 2119 2120 /** 2121 * Makes the TextView exactly this many lines tall 2122 * 2123 * @attr ref android.R.styleable#TextView_lines 2124 */ 2125 @android.view.RemotableViewMethod 2126 public void setLines(int lines) { 2127 mMaximum = mMinimum = lines; 2128 mMaxMode = mMinMode = LINES; 2129 2130 requestLayout(); 2131 invalidate(); 2132 } 2133 2134 /** 2135 * Makes the TextView exactly this many pixels tall. 2136 * You could do the same thing by specifying this number in the 2137 * LayoutParams. 2138 * 2139 * @attr ref android.R.styleable#TextView_height 2140 */ 2141 @android.view.RemotableViewMethod 2142 public void setHeight(int pixels) { 2143 mMaximum = mMinimum = pixels; 2144 mMaxMode = mMinMode = PIXELS; 2145 2146 requestLayout(); 2147 invalidate(); 2148 } 2149 2150 /** 2151 * Makes the TextView at least this many ems wide 2152 * 2153 * @attr ref android.R.styleable#TextView_minEms 2154 */ 2155 @android.view.RemotableViewMethod 2156 public void setMinEms(int minems) { 2157 mMinWidth = minems; 2158 mMinWidthMode = EMS; 2159 2160 requestLayout(); 2161 invalidate(); 2162 } 2163 2164 /** 2165 * Makes the TextView at least this many pixels wide 2166 * 2167 * @attr ref android.R.styleable#TextView_minWidth 2168 */ 2169 @android.view.RemotableViewMethod 2170 public void setMinWidth(int minpixels) { 2171 mMinWidth = minpixels; 2172 mMinWidthMode = PIXELS; 2173 2174 requestLayout(); 2175 invalidate(); 2176 } 2177 2178 /** 2179 * Makes the TextView at most this many ems wide 2180 * 2181 * @attr ref android.R.styleable#TextView_maxEms 2182 */ 2183 @android.view.RemotableViewMethod 2184 public void setMaxEms(int maxems) { 2185 mMaxWidth = maxems; 2186 mMaxWidthMode = EMS; 2187 2188 requestLayout(); 2189 invalidate(); 2190 } 2191 2192 /** 2193 * Makes the TextView at most this many pixels wide 2194 * 2195 * @attr ref android.R.styleable#TextView_maxWidth 2196 */ 2197 @android.view.RemotableViewMethod 2198 public void setMaxWidth(int maxpixels) { 2199 mMaxWidth = maxpixels; 2200 mMaxWidthMode = PIXELS; 2201 2202 requestLayout(); 2203 invalidate(); 2204 } 2205 2206 /** 2207 * Makes the TextView exactly this many ems wide 2208 * 2209 * @attr ref android.R.styleable#TextView_ems 2210 */ 2211 @android.view.RemotableViewMethod 2212 public void setEms(int ems) { 2213 mMaxWidth = mMinWidth = ems; 2214 mMaxWidthMode = mMinWidthMode = EMS; 2215 2216 requestLayout(); 2217 invalidate(); 2218 } 2219 2220 /** 2221 * Makes the TextView exactly this many pixels wide. 2222 * You could do the same thing by specifying this number in the 2223 * LayoutParams. 2224 * 2225 * @attr ref android.R.styleable#TextView_width 2226 */ 2227 @android.view.RemotableViewMethod 2228 public void setWidth(int pixels) { 2229 mMaxWidth = mMinWidth = pixels; 2230 mMaxWidthMode = mMinWidthMode = PIXELS; 2231 2232 requestLayout(); 2233 invalidate(); 2234 } 2235 2236 2237 /** 2238 * Sets line spacing for this TextView. Each line will have its height 2239 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2240 * 2241 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2242 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2243 */ 2244 public void setLineSpacing(float add, float mult) { 2245 mSpacingMult = mult; 2246 mSpacingAdd = add; 2247 2248 if (mLayout != null) { 2249 nullLayouts(); 2250 requestLayout(); 2251 invalidate(); 2252 } 2253 } 2254 2255 /** 2256 * Convenience method: Append the specified text to the TextView's 2257 * display buffer, upgrading it to BufferType.EDITABLE if it was 2258 * not already editable. 2259 */ 2260 public final void append(CharSequence text) { 2261 append(text, 0, text.length()); 2262 } 2263 2264 /** 2265 * Convenience method: Append the specified text slice to the TextView's 2266 * display buffer, upgrading it to BufferType.EDITABLE if it was 2267 * not already editable. 2268 */ 2269 public void append(CharSequence text, int start, int end) { 2270 if (!(mText instanceof Editable)) { 2271 setText(mText, BufferType.EDITABLE); 2272 } 2273 2274 ((Editable) mText).append(text, start, end); 2275 } 2276 2277 private void updateTextColors() { 2278 boolean inval = false; 2279 int color = mTextColor.getColorForState(getDrawableState(), 0); 2280 if (color != mCurTextColor) { 2281 mCurTextColor = color; 2282 inval = true; 2283 } 2284 if (mLinkTextColor != null) { 2285 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2286 if (color != mTextPaint.linkColor) { 2287 mTextPaint.linkColor = color; 2288 inval = true; 2289 } 2290 } 2291 if (mHintTextColor != null) { 2292 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2293 if (color != mCurHintTextColor && mText.length() == 0) { 2294 mCurHintTextColor = color; 2295 inval = true; 2296 } 2297 } 2298 if (inval) { 2299 invalidate(); 2300 } 2301 } 2302 2303 @Override 2304 protected void drawableStateChanged() { 2305 super.drawableStateChanged(); 2306 if (mTextColor != null && mTextColor.isStateful() 2307 || (mHintTextColor != null && mHintTextColor.isStateful()) 2308 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2309 updateTextColors(); 2310 } 2311 2312 final Drawables dr = mDrawables; 2313 if (dr != null) { 2314 int[] state = getDrawableState(); 2315 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2316 dr.mDrawableTop.setState(state); 2317 } 2318 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2319 dr.mDrawableBottom.setState(state); 2320 } 2321 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2322 dr.mDrawableLeft.setState(state); 2323 } 2324 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2325 dr.mDrawableRight.setState(state); 2326 } 2327 } 2328 } 2329 2330 /** 2331 * User interface state that is stored by TextView for implementing 2332 * {@link View#onSaveInstanceState}. 2333 */ 2334 public static class SavedState extends BaseSavedState { 2335 int selStart; 2336 int selEnd; 2337 CharSequence text; 2338 boolean frozenWithFocus; 2339 CharSequence error; 2340 2341 SavedState(Parcelable superState) { 2342 super(superState); 2343 } 2344 2345 @Override 2346 public void writeToParcel(Parcel out, int flags) { 2347 super.writeToParcel(out, flags); 2348 out.writeInt(selStart); 2349 out.writeInt(selEnd); 2350 out.writeInt(frozenWithFocus ? 1 : 0); 2351 TextUtils.writeToParcel(text, out, flags); 2352 2353 if (error == null) { 2354 out.writeInt(0); 2355 } else { 2356 out.writeInt(1); 2357 TextUtils.writeToParcel(error, out, flags); 2358 } 2359 } 2360 2361 @Override 2362 public String toString() { 2363 String str = "TextView.SavedState{" 2364 + Integer.toHexString(System.identityHashCode(this)) 2365 + " start=" + selStart + " end=" + selEnd; 2366 if (text != null) { 2367 str += " text=" + text; 2368 } 2369 return str + "}"; 2370 } 2371 2372 @SuppressWarnings("hiding") 2373 public static final Parcelable.Creator<SavedState> CREATOR 2374 = new Parcelable.Creator<SavedState>() { 2375 public SavedState createFromParcel(Parcel in) { 2376 return new SavedState(in); 2377 } 2378 2379 public SavedState[] newArray(int size) { 2380 return new SavedState[size]; 2381 } 2382 }; 2383 2384 private SavedState(Parcel in) { 2385 super(in); 2386 selStart = in.readInt(); 2387 selEnd = in.readInt(); 2388 frozenWithFocus = (in.readInt() != 0); 2389 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2390 2391 if (in.readInt() != 0) { 2392 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2393 } 2394 } 2395 } 2396 2397 @Override 2398 public Parcelable onSaveInstanceState() { 2399 Parcelable superState = super.onSaveInstanceState(); 2400 2401 // Save state if we are forced to 2402 boolean save = mFreezesText; 2403 int start = 0; 2404 int end = 0; 2405 2406 if (mText != null) { 2407 start = getSelectionStart(); 2408 end = getSelectionEnd(); 2409 if (start >= 0 || end >= 0) { 2410 // Or save state if there is a selection 2411 save = true; 2412 } 2413 } 2414 2415 if (save) { 2416 SavedState ss = new SavedState(superState); 2417 // XXX Should also save the current scroll position! 2418 ss.selStart = start; 2419 ss.selEnd = end; 2420 2421 if (mText instanceof Spanned) { 2422 /* 2423 * Calling setText() strips off any ChangeWatchers; 2424 * strip them now to avoid leaking references. 2425 * But do it to a copy so that if there are any 2426 * further changes to the text of this view, it 2427 * won't get into an inconsistent state. 2428 */ 2429 2430 Spannable sp = new SpannableString(mText); 2431 2432 for (ChangeWatcher cw : 2433 sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2434 sp.removeSpan(cw); 2435 } 2436 2437 ss.text = sp; 2438 } else { 2439 ss.text = mText.toString(); 2440 } 2441 2442 if (isFocused() && start >= 0 && end >= 0) { 2443 ss.frozenWithFocus = true; 2444 } 2445 2446 ss.error = mError; 2447 2448 return ss; 2449 } 2450 2451 return superState; 2452 } 2453 2454 @Override 2455 public void onRestoreInstanceState(Parcelable state) { 2456 if (!(state instanceof SavedState)) { 2457 super.onRestoreInstanceState(state); 2458 return; 2459 } 2460 2461 SavedState ss = (SavedState)state; 2462 super.onRestoreInstanceState(ss.getSuperState()); 2463 2464 // XXX restore buffer type too, as well as lots of other stuff 2465 if (ss.text != null) { 2466 setText(ss.text); 2467 } 2468 2469 if (ss.selStart >= 0 && ss.selEnd >= 0) { 2470 if (mText instanceof Spannable) { 2471 int len = mText.length(); 2472 2473 if (ss.selStart > len || ss.selEnd > len) { 2474 String restored = ""; 2475 2476 if (ss.text != null) { 2477 restored = "(restored) "; 2478 } 2479 2480 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 2481 "/" + ss.selEnd + " out of range for " + restored + 2482 "text " + mText); 2483 } else { 2484 Selection.setSelection((Spannable) mText, ss.selStart, 2485 ss.selEnd); 2486 2487 if (ss.frozenWithFocus) { 2488 mFrozenWithFocus = true; 2489 } 2490 } 2491 } 2492 } 2493 2494 if (ss.error != null) { 2495 final CharSequence error = ss.error; 2496 // Display the error later, after the first layout pass 2497 post(new Runnable() { 2498 public void run() { 2499 setError(error); 2500 } 2501 }); 2502 } 2503 } 2504 2505 /** 2506 * Control whether this text view saves its entire text contents when 2507 * freezing to an icicle, in addition to dynamic state such as cursor 2508 * position. By default this is false, not saving the text. Set to true 2509 * if the text in the text view is not being saved somewhere else in 2510 * persistent storage (such as in a content provider) so that if the 2511 * view is later thawed the user will not lose their data. 2512 * 2513 * @param freezesText Controls whether a frozen icicle should include the 2514 * entire text data: true to include it, false to not. 2515 * 2516 * @attr ref android.R.styleable#TextView_freezesText 2517 */ 2518 @android.view.RemotableViewMethod 2519 public void setFreezesText(boolean freezesText) { 2520 mFreezesText = freezesText; 2521 } 2522 2523 /** 2524 * Return whether this text view is including its entire text contents 2525 * in frozen icicles. 2526 * 2527 * @return Returns true if text is included, false if it isn't. 2528 * 2529 * @see #setFreezesText 2530 */ 2531 public boolean getFreezesText() { 2532 return mFreezesText; 2533 } 2534 2535 /////////////////////////////////////////////////////////////////////////// 2536 2537 /** 2538 * Sets the Factory used to create new Editables. 2539 */ 2540 public final void setEditableFactory(Editable.Factory factory) { 2541 mEditableFactory = factory; 2542 setText(mText); 2543 } 2544 2545 /** 2546 * Sets the Factory used to create new Spannables. 2547 */ 2548 public final void setSpannableFactory(Spannable.Factory factory) { 2549 mSpannableFactory = factory; 2550 setText(mText); 2551 } 2552 2553 /** 2554 * Sets the string value of the TextView. TextView <em>does not</em> accept 2555 * HTML-like formatting, which you can do with text strings in XML resource files. 2556 * To style your strings, attach android.text.style.* objects to a 2557 * {@link android.text.SpannableString SpannableString}, or see the 2558 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 2559 * Available Resource Types</a> documentation for an example of setting 2560 * formatted text in the XML resource file. 2561 * 2562 * @attr ref android.R.styleable#TextView_text 2563 */ 2564 @android.view.RemotableViewMethod 2565 public final void setText(CharSequence text) { 2566 setText(text, mBufferType); 2567 } 2568 2569 /** 2570 * Like {@link #setText(CharSequence)}, 2571 * except that the cursor position (if any) is retained in the new text. 2572 * 2573 * @param text The new text to place in the text view. 2574 * 2575 * @see #setText(CharSequence) 2576 */ 2577 @android.view.RemotableViewMethod 2578 public final void setTextKeepState(CharSequence text) { 2579 setTextKeepState(text, mBufferType); 2580 } 2581 2582 /** 2583 * Sets the text that this TextView is to display (see 2584 * {@link #setText(CharSequence)}) and also sets whether it is stored 2585 * in a styleable/spannable buffer and whether it is editable. 2586 * 2587 * @attr ref android.R.styleable#TextView_text 2588 * @attr ref android.R.styleable#TextView_bufferType 2589 */ 2590 public void setText(CharSequence text, BufferType type) { 2591 setText(text, type, true, 0); 2592 2593 if (mCharWrapper != null) { 2594 mCharWrapper.mChars = null; 2595 } 2596 } 2597 2598 private void setText(CharSequence text, BufferType type, 2599 boolean notifyBefore, int oldlen) { 2600 if (text == null) { 2601 text = ""; 2602 } 2603 2604 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 2605 2606 if (text instanceof Spanned && 2607 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 2608 setHorizontalFadingEdgeEnabled(true); 2609 setEllipsize(TextUtils.TruncateAt.MARQUEE); 2610 } 2611 2612 int n = mFilters.length; 2613 for (int i = 0; i < n; i++) { 2614 CharSequence out = mFilters[i].filter(text, 0, text.length(), 2615 EMPTY_SPANNED, 0, 0); 2616 if (out != null) { 2617 text = out; 2618 } 2619 } 2620 2621 if (notifyBefore) { 2622 if (mText != null) { 2623 oldlen = mText.length(); 2624 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 2625 } else { 2626 sendBeforeTextChanged("", 0, 0, text.length()); 2627 } 2628 } 2629 2630 boolean needEditableForNotification = false; 2631 2632 if (mListeners != null && mListeners.size() != 0) { 2633 needEditableForNotification = true; 2634 } 2635 2636 if (type == BufferType.EDITABLE || mInput != null || 2637 needEditableForNotification) { 2638 Editable t = mEditableFactory.newEditable(text); 2639 text = t; 2640 setFilters(t, mFilters); 2641 InputMethodManager imm = InputMethodManager.peekInstance(); 2642 if (imm != null) imm.restartInput(this); 2643 } else if (type == BufferType.SPANNABLE || mMovement != null) { 2644 text = mSpannableFactory.newSpannable(text); 2645 } else if (!(text instanceof CharWrapper)) { 2646 text = TextUtils.stringOrSpannedString(text); 2647 } 2648 2649 if (mAutoLinkMask != 0) { 2650 Spannable s2; 2651 2652 if (type == BufferType.EDITABLE || text instanceof Spannable) { 2653 s2 = (Spannable) text; 2654 } else { 2655 s2 = mSpannableFactory.newSpannable(text); 2656 } 2657 2658 if (Linkify.addLinks(s2, mAutoLinkMask)) { 2659 text = s2; 2660 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 2661 2662 /* 2663 * We must go ahead and set the text before changing the 2664 * movement method, because setMovementMethod() may call 2665 * setText() again to try to upgrade the buffer type. 2666 */ 2667 mText = text; 2668 2669 if (mLinksClickable) { 2670 setMovementMethod(LinkMovementMethod.getInstance()); 2671 } 2672 } 2673 } 2674 2675 mBufferType = type; 2676 mText = text; 2677 2678 if (mTransformation == null) 2679 mTransformed = text; 2680 else 2681 mTransformed = mTransformation.getTransformation(text, this); 2682 2683 final int textLength = text.length(); 2684 2685 if (text instanceof Spannable) { 2686 Spannable sp = (Spannable) text; 2687 2688 // Remove any ChangeWatchers that might have come 2689 // from other TextViews. 2690 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 2691 final int count = watchers.length; 2692 for (int i = 0; i < count; i++) 2693 sp.removeSpan(watchers[i]); 2694 2695 if (mChangeWatcher == null) 2696 mChangeWatcher = new ChangeWatcher(); 2697 2698 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 2699 (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 2700 2701 if (mInput != null) { 2702 sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2703 } 2704 2705 if (mTransformation != null) { 2706 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2707 2708 } 2709 2710 if (mMovement != null) { 2711 mMovement.initialize(this, (Spannable) text); 2712 2713 /* 2714 * Initializing the movement method will have set the 2715 * selection, so reset mSelectionMoved to keep that from 2716 * interfering with the normal on-focus selection-setting. 2717 */ 2718 mSelectionMoved = false; 2719 } 2720 } 2721 2722 if (mLayout != null) { 2723 checkForRelayout(); 2724 } 2725 2726 sendOnTextChanged(text, 0, oldlen, textLength); 2727 onTextChanged(text, 0, oldlen, textLength); 2728 2729 if (needEditableForNotification) { 2730 sendAfterTextChanged((Editable) text); 2731 } 2732 2733 // SelectionModifierCursorController depends on canSelectText, which depends on text 2734 prepareCursorControllers(); 2735 } 2736 2737 /** 2738 * Sets the TextView to display the specified slice of the specified 2739 * char array. You must promise that you will not change the contents 2740 * of the array except for right before another call to setText(), 2741 * since the TextView has no way to know that the text 2742 * has changed and that it needs to invalidate and re-layout. 2743 */ 2744 public final void setText(char[] text, int start, int len) { 2745 int oldlen = 0; 2746 2747 if (start < 0 || len < 0 || start + len > text.length) { 2748 throw new IndexOutOfBoundsException(start + ", " + len); 2749 } 2750 2751 /* 2752 * We must do the before-notification here ourselves because if 2753 * the old text is a CharWrapper we destroy it before calling 2754 * into the normal path. 2755 */ 2756 if (mText != null) { 2757 oldlen = mText.length(); 2758 sendBeforeTextChanged(mText, 0, oldlen, len); 2759 } else { 2760 sendBeforeTextChanged("", 0, 0, len); 2761 } 2762 2763 if (mCharWrapper == null) { 2764 mCharWrapper = new CharWrapper(text, start, len); 2765 } else { 2766 mCharWrapper.set(text, start, len); 2767 } 2768 2769 setText(mCharWrapper, mBufferType, false, oldlen); 2770 } 2771 2772 private static class CharWrapper 2773 implements CharSequence, GetChars, GraphicsOperations { 2774 private char[] mChars; 2775 private int mStart, mLength; 2776 2777 public CharWrapper(char[] chars, int start, int len) { 2778 mChars = chars; 2779 mStart = start; 2780 mLength = len; 2781 } 2782 2783 /* package */ void set(char[] chars, int start, int len) { 2784 mChars = chars; 2785 mStart = start; 2786 mLength = len; 2787 } 2788 2789 public int length() { 2790 return mLength; 2791 } 2792 2793 public char charAt(int off) { 2794 return mChars[off + mStart]; 2795 } 2796 2797 @Override 2798 public String toString() { 2799 return new String(mChars, mStart, mLength); 2800 } 2801 2802 public CharSequence subSequence(int start, int end) { 2803 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2804 throw new IndexOutOfBoundsException(start + ", " + end); 2805 } 2806 2807 return new String(mChars, start + mStart, end - start); 2808 } 2809 2810 public void getChars(int start, int end, char[] buf, int off) { 2811 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2812 throw new IndexOutOfBoundsException(start + ", " + end); 2813 } 2814 2815 System.arraycopy(mChars, start + mStart, buf, off, end - start); 2816 } 2817 2818 public void drawText(Canvas c, int start, int end, 2819 float x, float y, Paint p) { 2820 c.drawText(mChars, start + mStart, end - start, x, y, p); 2821 } 2822 2823 public void drawTextRun(Canvas c, int start, int end, 2824 int contextStart, int contextEnd, float x, float y, int flags, Paint p) { 2825 int count = end - start; 2826 int contextCount = contextEnd - contextStart; 2827 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 2828 contextCount, x, y, flags, p); 2829 } 2830 2831 public float measureText(int start, int end, Paint p) { 2832 return p.measureText(mChars, start + mStart, end - start); 2833 } 2834 2835 public int getTextWidths(int start, int end, float[] widths, Paint p) { 2836 return p.getTextWidths(mChars, start + mStart, end - start, widths); 2837 } 2838 2839 public float getTextRunAdvances(int start, int end, int contextStart, 2840 int contextEnd, int flags, float[] advances, int advancesIndex, 2841 Paint p) { 2842 int count = end - start; 2843 int contextCount = contextEnd - contextStart; 2844 return p.getTextRunAdvances(mChars, start + mStart, count, 2845 contextStart + mStart, contextCount, flags, advances, 2846 advancesIndex); 2847 } 2848 2849 public int getTextRunCursor(int contextStart, int contextEnd, int flags, 2850 int offset, int cursorOpt, Paint p) { 2851 int contextCount = contextEnd - contextStart; 2852 return p.getTextRunCursor(mChars, contextStart + mStart, 2853 contextCount, flags, offset + mStart, cursorOpt); 2854 } 2855 } 2856 2857 /** 2858 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 2859 * except that the cursor position (if any) is retained in the new text. 2860 * 2861 * @see #setText(CharSequence, android.widget.TextView.BufferType) 2862 */ 2863 public final void setTextKeepState(CharSequence text, BufferType type) { 2864 int start = getSelectionStart(); 2865 int end = getSelectionEnd(); 2866 int len = text.length(); 2867 2868 setText(text, type); 2869 2870 if (start >= 0 || end >= 0) { 2871 if (mText instanceof Spannable) { 2872 Selection.setSelection((Spannable) mText, 2873 Math.max(0, Math.min(start, len)), 2874 Math.max(0, Math.min(end, len))); 2875 } 2876 } 2877 } 2878 2879 @android.view.RemotableViewMethod 2880 public final void setText(int resid) { 2881 setText(getContext().getResources().getText(resid)); 2882 } 2883 2884 public final void setText(int resid, BufferType type) { 2885 setText(getContext().getResources().getText(resid), type); 2886 } 2887 2888 /** 2889 * Sets the text to be displayed when the text of the TextView is empty. 2890 * Null means to use the normal empty text. The hint does not currently 2891 * participate in determining the size of the view. 2892 * 2893 * @attr ref android.R.styleable#TextView_hint 2894 */ 2895 @android.view.RemotableViewMethod 2896 public final void setHint(CharSequence hint) { 2897 mHint = TextUtils.stringOrSpannedString(hint); 2898 2899 if (mLayout != null) { 2900 checkForRelayout(); 2901 } 2902 2903 if (mText.length() == 0) { 2904 invalidate(); 2905 } 2906 } 2907 2908 /** 2909 * Sets the text to be displayed when the text of the TextView is empty, 2910 * from a resource. 2911 * 2912 * @attr ref android.R.styleable#TextView_hint 2913 */ 2914 @android.view.RemotableViewMethod 2915 public final void setHint(int resid) { 2916 setHint(getContext().getResources().getText(resid)); 2917 } 2918 2919 /** 2920 * Returns the hint that is displayed when the text of the TextView 2921 * is empty. 2922 * 2923 * @attr ref android.R.styleable#TextView_hint 2924 */ 2925 @ViewDebug.CapturedViewProperty 2926 public CharSequence getHint() { 2927 return mHint; 2928 } 2929 2930 /** 2931 * Set the type of the content with a constant as defined for 2932 * {@link EditorInfo#inputType}. This will take care of changing 2933 * the key listener, by calling {@link #setKeyListener(KeyListener)}, to 2934 * match the given content type. If the given content type is 2935 * {@link EditorInfo#TYPE_NULL} then a soft keyboard will 2936 * not be displayed for this text view. 2937 * 2938 * @see #getInputType() 2939 * @see #setRawInputType(int) 2940 * @see android.text.InputType 2941 * @attr ref android.R.styleable#TextView_inputType 2942 */ 2943 public void setInputType(int type) { 2944 final boolean wasPassword = isPasswordInputType(mInputType); 2945 final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType); 2946 setInputType(type, false); 2947 final boolean isPassword = isPasswordInputType(type); 2948 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 2949 boolean forceUpdate = false; 2950 if (isPassword) { 2951 setTransformationMethod(PasswordTransformationMethod.getInstance()); 2952 setTypefaceByIndex(MONOSPACE, 0); 2953 } else if (isVisiblePassword) { 2954 if (mTransformation == PasswordTransformationMethod.getInstance()) { 2955 forceUpdate = true; 2956 } 2957 setTypefaceByIndex(MONOSPACE, 0); 2958 } else if (wasPassword || wasVisiblePassword) { 2959 // not in password mode, clean up typeface and transformation 2960 setTypefaceByIndex(-1, -1); 2961 if (mTransformation == PasswordTransformationMethod.getInstance()) { 2962 forceUpdate = true; 2963 } 2964 } 2965 2966 boolean multiLine = (type&(EditorInfo.TYPE_MASK_CLASS 2967 | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 2968 (EditorInfo.TYPE_CLASS_TEXT 2969 | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 2970 2971 // We need to update the single line mode if it has changed or we 2972 // were previously in password mode. 2973 if (mSingleLine == multiLine || forceUpdate) { 2974 // Change single line mode, but only change the transformation if 2975 // we are not in password mode. 2976 applySingleLine(!multiLine, !isPassword); 2977 } 2978 2979 InputMethodManager imm = InputMethodManager.peekInstance(); 2980 if (imm != null) imm.restartInput(this); 2981 } 2982 2983 private boolean isPasswordInputType(int inputType) { 2984 final int variation = inputType & (EditorInfo.TYPE_MASK_CLASS 2985 | EditorInfo.TYPE_MASK_VARIATION); 2986 return variation 2987 == (EditorInfo.TYPE_CLASS_TEXT 2988 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 2989 } 2990 2991 private boolean isVisiblePasswordInputType(int inputType) { 2992 final int variation = inputType & (EditorInfo.TYPE_MASK_CLASS 2993 | EditorInfo.TYPE_MASK_VARIATION); 2994 return variation 2995 == (EditorInfo.TYPE_CLASS_TEXT 2996 | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 2997 } 2998 2999 /** 3000 * Directly change the content type integer of the text view, without 3001 * modifying any other state. 3002 * @see #setInputType(int) 3003 * @see android.text.InputType 3004 * @attr ref android.R.styleable#TextView_inputType 3005 */ 3006 public void setRawInputType(int type) { 3007 mInputType = type; 3008 } 3009 3010 private void setInputType(int type, boolean direct) { 3011 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 3012 KeyListener input; 3013 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 3014 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 3015 TextKeyListener.Capitalize cap; 3016 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 3017 cap = TextKeyListener.Capitalize.CHARACTERS; 3018 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 3019 cap = TextKeyListener.Capitalize.WORDS; 3020 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 3021 cap = TextKeyListener.Capitalize.SENTENCES; 3022 } else { 3023 cap = TextKeyListener.Capitalize.NONE; 3024 } 3025 input = TextKeyListener.getInstance(autotext, cap); 3026 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 3027 input = DigitsKeyListener.getInstance( 3028 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 3029 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 3030 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 3031 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 3032 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 3033 input = DateKeyListener.getInstance(); 3034 break; 3035 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 3036 input = TimeKeyListener.getInstance(); 3037 break; 3038 default: 3039 input = DateTimeKeyListener.getInstance(); 3040 break; 3041 } 3042 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 3043 input = DialerKeyListener.getInstance(); 3044 } else { 3045 input = TextKeyListener.getInstance(); 3046 } 3047 setRawInputType(type); 3048 if (direct) mInput = input; 3049 else { 3050 setKeyListenerOnly(input); 3051 } 3052 } 3053 3054 /** 3055 * Get the type of the content. 3056 * 3057 * @see #setInputType(int) 3058 * @see android.text.InputType 3059 */ 3060 public int getInputType() { 3061 return mInputType; 3062 } 3063 3064 /** 3065 * Change the editor type integer associated with the text view, which 3066 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3067 * has focus. 3068 * @see #getImeOptions 3069 * @see android.view.inputmethod.EditorInfo 3070 * @attr ref android.R.styleable#TextView_imeOptions 3071 */ 3072 public void setImeOptions(int imeOptions) { 3073 if (mInputContentType == null) { 3074 mInputContentType = new InputContentType(); 3075 } 3076 mInputContentType.imeOptions = imeOptions; 3077 } 3078 3079 /** 3080 * Get the type of the IME editor. 3081 * 3082 * @see #setImeOptions(int) 3083 * @see android.view.inputmethod.EditorInfo 3084 */ 3085 public int getImeOptions() { 3086 return mInputContentType != null 3087 ? mInputContentType.imeOptions : EditorInfo.IME_NULL; 3088 } 3089 3090 /** 3091 * Change the custom IME action associated with the text view, which 3092 * will be reported to an IME with {@link EditorInfo#actionLabel} 3093 * and {@link EditorInfo#actionId} when it has focus. 3094 * @see #getImeActionLabel 3095 * @see #getImeActionId 3096 * @see android.view.inputmethod.EditorInfo 3097 * @attr ref android.R.styleable#TextView_imeActionLabel 3098 * @attr ref android.R.styleable#TextView_imeActionId 3099 */ 3100 public void setImeActionLabel(CharSequence label, int actionId) { 3101 if (mInputContentType == null) { 3102 mInputContentType = new InputContentType(); 3103 } 3104 mInputContentType.imeActionLabel = label; 3105 mInputContentType.imeActionId = actionId; 3106 } 3107 3108 /** 3109 * Get the IME action label previous set with {@link #setImeActionLabel}. 3110 * 3111 * @see #setImeActionLabel 3112 * @see android.view.inputmethod.EditorInfo 3113 */ 3114 public CharSequence getImeActionLabel() { 3115 return mInputContentType != null 3116 ? mInputContentType.imeActionLabel : null; 3117 } 3118 3119 /** 3120 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3121 * 3122 * @see #setImeActionLabel 3123 * @see android.view.inputmethod.EditorInfo 3124 */ 3125 public int getImeActionId() { 3126 return mInputContentType != null 3127 ? mInputContentType.imeActionId : 0; 3128 } 3129 3130 /** 3131 * Set a special listener to be called when an action is performed 3132 * on the text view. This will be called when the enter key is pressed, 3133 * or when an action supplied to the IME is selected by the user. Setting 3134 * this means that the normal hard key event will not insert a newline 3135 * into the text view, even if it is multi-line; holding down the ALT 3136 * modifier will, however, allow the user to insert a newline character. 3137 */ 3138 public void setOnEditorActionListener(OnEditorActionListener l) { 3139 if (mInputContentType == null) { 3140 mInputContentType = new InputContentType(); 3141 } 3142 mInputContentType.onEditorActionListener = l; 3143 } 3144 3145 /** 3146 * Called when an attached input method calls 3147 * {@link InputConnection#performEditorAction(int) 3148 * InputConnection.performEditorAction()} 3149 * for this text view. The default implementation will call your action 3150 * listener supplied to {@link #setOnEditorActionListener}, or perform 3151 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3152 * EditorInfo.IME_ACTION_NEXT} or {@link EditorInfo#IME_ACTION_DONE 3153 * EditorInfo.IME_ACTION_DONE}. 3154 * 3155 * <p>For backwards compatibility, if no IME options have been set and the 3156 * text view would not normally advance focus on enter, then 3157 * the NEXT and DONE actions received here will be turned into an enter 3158 * key down/up pair to go through the normal key handling. 3159 * 3160 * @param actionCode The code of the action being performed. 3161 * 3162 * @see #setOnEditorActionListener 3163 */ 3164 public void onEditorAction(int actionCode) { 3165 final InputContentType ict = mInputContentType; 3166 if (ict != null) { 3167 if (ict.onEditorActionListener != null) { 3168 if (ict.onEditorActionListener.onEditorAction(this, 3169 actionCode, null)) { 3170 return; 3171 } 3172 } 3173 3174 // This is the handling for some default action. 3175 // Note that for backwards compatibility we don't do this 3176 // default handling if explicit ime options have not been given, 3177 // instead turning this into the normal enter key codes that an 3178 // app may be expecting. 3179 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3180 View v = focusSearch(FOCUS_DOWN); 3181 if (v != null) { 3182 if (!v.requestFocus(FOCUS_DOWN)) { 3183 throw new IllegalStateException("focus search returned a view " + 3184 "that wasn't able to take focus!"); 3185 } 3186 } 3187 return; 3188 3189 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3190 InputMethodManager imm = InputMethodManager.peekInstance(); 3191 if (imm != null) { 3192 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3193 } 3194 return; 3195 } 3196 } 3197 3198 Handler h = getHandler(); 3199 if (h != null) { 3200 long eventTime = SystemClock.uptimeMillis(); 3201 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3202 new KeyEvent(eventTime, eventTime, 3203 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 0, 0, 3204 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3205 | KeyEvent.FLAG_EDITOR_ACTION))); 3206 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3207 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3208 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 0, 0, 3209 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3210 | KeyEvent.FLAG_EDITOR_ACTION))); 3211 } 3212 } 3213 3214 /** 3215 * Set the private content type of the text, which is the 3216 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3217 * field that will be filled in when creating an input connection. 3218 * 3219 * @see #getPrivateImeOptions() 3220 * @see EditorInfo#privateImeOptions 3221 * @attr ref android.R.styleable#TextView_privateImeOptions 3222 */ 3223 public void setPrivateImeOptions(String type) { 3224 if (mInputContentType == null) mInputContentType = new InputContentType(); 3225 mInputContentType.privateImeOptions = type; 3226 } 3227 3228 /** 3229 * Get the private type of the content. 3230 * 3231 * @see #setPrivateImeOptions(String) 3232 * @see EditorInfo#privateImeOptions 3233 */ 3234 public String getPrivateImeOptions() { 3235 return mInputContentType != null 3236 ? mInputContentType.privateImeOptions : null; 3237 } 3238 3239 /** 3240 * Set the extra input data of the text, which is the 3241 * {@link EditorInfo#extras TextBoxAttribute.extras} 3242 * Bundle that will be filled in when creating an input connection. The 3243 * given integer is the resource ID of an XML resource holding an 3244 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3245 * 3246 * @see #getInputExtras(boolean) 3247 * @see EditorInfo#extras 3248 * @attr ref android.R.styleable#TextView_editorExtras 3249 */ 3250 public void setInputExtras(int xmlResId) 3251 throws XmlPullParserException, IOException { 3252 XmlResourceParser parser = getResources().getXml(xmlResId); 3253 if (mInputContentType == null) mInputContentType = new InputContentType(); 3254 mInputContentType.extras = new Bundle(); 3255 getResources().parseBundleExtras(parser, mInputContentType.extras); 3256 } 3257 3258 /** 3259 * Retrieve the input extras currently associated with the text view, which 3260 * can be viewed as well as modified. 3261 * 3262 * @param create If true, the extras will be created if they don't already 3263 * exist. Otherwise, null will be returned if none have been created. 3264 * @see #setInputExtras(int) 3265 * @see EditorInfo#extras 3266 * @attr ref android.R.styleable#TextView_editorExtras 3267 */ 3268 public Bundle getInputExtras(boolean create) { 3269 if (mInputContentType == null) { 3270 if (!create) return null; 3271 mInputContentType = new InputContentType(); 3272 } 3273 if (mInputContentType.extras == null) { 3274 if (!create) return null; 3275 mInputContentType.extras = new Bundle(); 3276 } 3277 return mInputContentType.extras; 3278 } 3279 3280 /** 3281 * Returns the error message that was set to be displayed with 3282 * {@link #setError}, or <code>null</code> if no error was set 3283 * or if it the error was cleared by the widget after user input. 3284 */ 3285 public CharSequence getError() { 3286 return mError; 3287 } 3288 3289 /** 3290 * Sets the right-hand compound drawable of the TextView to the "error" 3291 * icon and sets an error message that will be displayed in a popup when 3292 * the TextView has focus. The icon and error message will be reset to 3293 * null when any key events cause changes to the TextView's text. If the 3294 * <code>error</code> is <code>null</code>, the error message and icon 3295 * will be cleared. 3296 */ 3297 @android.view.RemotableViewMethod 3298 public void setError(CharSequence error) { 3299 if (error == null) { 3300 setError(null, null); 3301 } else { 3302 Drawable dr = getContext().getResources(). 3303 getDrawable(com.android.internal.R.drawable. 3304 indicator_input_error); 3305 3306 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3307 setError(error, dr); 3308 } 3309 } 3310 3311 /** 3312 * Sets the right-hand compound drawable of the TextView to the specified 3313 * icon and sets an error message that will be displayed in a popup when 3314 * the TextView has focus. The icon and error message will be reset to 3315 * null when any key events cause changes to the TextView's text. The 3316 * drawable must already have had {@link Drawable#setBounds} set on it. 3317 * If the <code>error</code> is <code>null</code>, the error message will 3318 * be cleared (and you should provide a <code>null</code> icon as well). 3319 */ 3320 public void setError(CharSequence error, Drawable icon) { 3321 error = TextUtils.stringOrSpannedString(error); 3322 3323 mError = error; 3324 mErrorWasChanged = true; 3325 final Drawables dr = mDrawables; 3326 if (dr != null) { 3327 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, 3328 icon, dr.mDrawableBottom); 3329 } else { 3330 setCompoundDrawables(null, null, icon, null); 3331 } 3332 3333 if (error == null) { 3334 if (mPopup != null) { 3335 if (mPopup.isShowing()) { 3336 mPopup.dismiss(); 3337 } 3338 3339 mPopup = null; 3340 } 3341 } else { 3342 if (isFocused()) { 3343 showError(); 3344 } 3345 } 3346 } 3347 3348 private void showError() { 3349 if (getWindowToken() == null) { 3350 mShowErrorAfterAttach = true; 3351 return; 3352 } 3353 3354 if (mPopup == null) { 3355 LayoutInflater inflater = LayoutInflater.from(getContext()); 3356 final TextView err = (TextView) inflater.inflate(com.android.internal.R.layout.textview_hint, 3357 null); 3358 3359 final float scale = getResources().getDisplayMetrics().density; 3360 mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), 3361 (int) (50 * scale + 0.5f)); 3362 mPopup.setFocusable(false); 3363 // The user is entering text, so the input method is needed. We 3364 // don't want the popup to be displayed on top of it. 3365 mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 3366 } 3367 3368 TextView tv = (TextView) mPopup.getContentView(); 3369 chooseSize(mPopup, mError, tv); 3370 tv.setText(mError); 3371 3372 mPopup.showAsDropDown(this, getErrorX(), getErrorY()); 3373 mPopup.fixDirection(mPopup.isAboveAnchor()); 3374 } 3375 3376 private static class ErrorPopup extends PopupWindow { 3377 private boolean mAbove = false; 3378 private final TextView mView; 3379 3380 ErrorPopup(TextView v, int width, int height) { 3381 super(v, width, height); 3382 mView = v; 3383 } 3384 3385 void fixDirection(boolean above) { 3386 mAbove = above; 3387 3388 if (above) { 3389 mView.setBackgroundResource(com.android.internal.R.drawable.popup_inline_error_above); 3390 } else { 3391 mView.setBackgroundResource(com.android.internal.R.drawable.popup_inline_error); 3392 } 3393 } 3394 3395 @Override 3396 public void update(int x, int y, int w, int h, boolean force) { 3397 super.update(x, y, w, h, force); 3398 3399 boolean above = isAboveAnchor(); 3400 if (above != mAbove) { 3401 fixDirection(above); 3402 } 3403 } 3404 } 3405 3406 /** 3407 * Returns the Y offset to make the pointy top of the error point 3408 * at the middle of the error icon. 3409 */ 3410 private int getErrorX() { 3411 /* 3412 * The "25" is the distance between the point and the right edge 3413 * of the background 3414 */ 3415 final float scale = getResources().getDisplayMetrics().density; 3416 3417 final Drawables dr = mDrawables; 3418 return getWidth() - mPopup.getWidth() 3419 - getPaddingRight() 3420 - (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 3421 } 3422 3423 /** 3424 * Returns the Y offset to make the pointy top of the error point 3425 * at the bottom of the error icon. 3426 */ 3427 private int getErrorY() { 3428 /* 3429 * Compound, not extended, because the icon is not clipped 3430 * if the text height is smaller. 3431 */ 3432 int vspace = mBottom - mTop - 3433 getCompoundPaddingBottom() - getCompoundPaddingTop(); 3434 3435 final Drawables dr = mDrawables; 3436 int icontop = getCompoundPaddingTop() 3437 + (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 3438 3439 /* 3440 * The "2" is the distance between the point and the top edge 3441 * of the background. 3442 */ 3443 3444 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) 3445 - getHeight() - 2; 3446 } 3447 3448 private void hideError() { 3449 if (mPopup != null) { 3450 if (mPopup.isShowing()) { 3451 mPopup.dismiss(); 3452 } 3453 } 3454 3455 mShowErrorAfterAttach = false; 3456 } 3457 3458 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 3459 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 3460 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 3461 3462 /* 3463 * Figure out how big the text would be if we laid it out to the 3464 * full width of this view minus the border. 3465 */ 3466 int cap = getWidth() - wid; 3467 if (cap < 0) { 3468 cap = 200; // We must not be measured yet -- setFrame() will fix it. 3469 } 3470 3471 Layout l = new StaticLayout(text, tv.getPaint(), cap, 3472 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 3473 float max = 0; 3474 for (int i = 0; i < l.getLineCount(); i++) { 3475 max = Math.max(max, l.getLineWidth(i)); 3476 } 3477 3478 /* 3479 * Now set the popup size to be big enough for the text plus the border. 3480 */ 3481 pop.setWidth(wid + (int) Math.ceil(max)); 3482 pop.setHeight(ht + l.getHeight()); 3483 } 3484 3485 3486 @Override 3487 protected boolean setFrame(int l, int t, int r, int b) { 3488 boolean result = super.setFrame(l, t, r, b); 3489 3490 if (mPopup != null) { 3491 TextView tv = (TextView) mPopup.getContentView(); 3492 chooseSize(mPopup, mError, tv); 3493 mPopup.update(this, getErrorX(), getErrorY(), 3494 mPopup.getWidth(), mPopup.getHeight()); 3495 } 3496 3497 restartMarqueeIfNeeded(); 3498 3499 return result; 3500 } 3501 3502 private void restartMarqueeIfNeeded() { 3503 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 3504 mRestartMarquee = false; 3505 startMarquee(); 3506 } 3507 } 3508 3509 /** 3510 * Sets the list of input filters that will be used if the buffer is 3511 * Editable. Has no effect otherwise. 3512 * 3513 * @attr ref android.R.styleable#TextView_maxLength 3514 */ 3515 public void setFilters(InputFilter[] filters) { 3516 if (filters == null) { 3517 throw new IllegalArgumentException(); 3518 } 3519 3520 mFilters = filters; 3521 3522 if (mText instanceof Editable) { 3523 setFilters((Editable) mText, filters); 3524 } 3525 } 3526 3527 /** 3528 * Sets the list of input filters on the specified Editable, 3529 * and includes mInput in the list if it is an InputFilter. 3530 */ 3531 private void setFilters(Editable e, InputFilter[] filters) { 3532 if (mInput instanceof InputFilter) { 3533 InputFilter[] nf = new InputFilter[filters.length + 1]; 3534 3535 System.arraycopy(filters, 0, nf, 0, filters.length); 3536 nf[filters.length] = (InputFilter) mInput; 3537 3538 e.setFilters(nf); 3539 } else { 3540 e.setFilters(filters); 3541 } 3542 } 3543 3544 /** 3545 * Returns the current list of input filters. 3546 */ 3547 public InputFilter[] getFilters() { 3548 return mFilters; 3549 } 3550 3551 ///////////////////////////////////////////////////////////////////////// 3552 3553 private int getVerticalOffset(boolean forceNormal) { 3554 int voffset = 0; 3555 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3556 3557 Layout l = mLayout; 3558 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3559 l = mHintLayout; 3560 } 3561 3562 if (gravity != Gravity.TOP) { 3563 int boxht; 3564 3565 if (l == mHintLayout) { 3566 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3567 getCompoundPaddingBottom(); 3568 } else { 3569 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3570 getExtendedPaddingBottom(); 3571 } 3572 int textht = l.getHeight(); 3573 3574 if (textht < boxht) { 3575 if (gravity == Gravity.BOTTOM) 3576 voffset = boxht - textht; 3577 else // (gravity == Gravity.CENTER_VERTICAL) 3578 voffset = (boxht - textht) >> 1; 3579 } 3580 } 3581 return voffset; 3582 } 3583 3584 private int getBottomVerticalOffset(boolean forceNormal) { 3585 int voffset = 0; 3586 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3587 3588 Layout l = mLayout; 3589 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3590 l = mHintLayout; 3591 } 3592 3593 if (gravity != Gravity.BOTTOM) { 3594 int boxht; 3595 3596 if (l == mHintLayout) { 3597 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3598 getCompoundPaddingBottom(); 3599 } else { 3600 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3601 getExtendedPaddingBottom(); 3602 } 3603 int textht = l.getHeight(); 3604 3605 if (textht < boxht) { 3606 if (gravity == Gravity.TOP) 3607 voffset = boxht - textht; 3608 else // (gravity == Gravity.CENTER_VERTICAL) 3609 voffset = (boxht - textht) >> 1; 3610 } 3611 } 3612 return voffset; 3613 } 3614 3615 private void invalidateCursorPath() { 3616 if (mHighlightPathBogus) { 3617 invalidateCursor(); 3618 } else { 3619 synchronized (sTempRect) { 3620 /* 3621 * The reason for this concern about the thickness of the 3622 * cursor and doing the floor/ceil on the coordinates is that 3623 * some EditTexts (notably textfields in the Browser) have 3624 * anti-aliased text where not all the characters are 3625 * necessarily at integer-multiple locations. This should 3626 * make sure the entire cursor gets invalidated instead of 3627 * sometimes missing half a pixel. 3628 */ 3629 3630 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 3631 if (thick < 1.0f) { 3632 thick = 1.0f; 3633 } 3634 3635 thick /= 2; 3636 3637 mHighlightPath.computeBounds(sTempRect, false); 3638 3639 int left = getCompoundPaddingLeft(); 3640 int top = getExtendedPaddingTop() + getVerticalOffset(true); 3641 3642 invalidate((int) FloatMath.floor(left + sTempRect.left - thick), 3643 (int) FloatMath.floor(top + sTempRect.top - thick), 3644 (int) FloatMath.ceil(left + sTempRect.right + thick), 3645 (int) FloatMath.ceil(top + sTempRect.bottom + thick)); 3646 } 3647 } 3648 } 3649 3650 private void invalidateCursor() { 3651 int where = getSelectionEnd(); 3652 3653 invalidateCursor(where, where, where); 3654 } 3655 3656 private void invalidateCursor(int a, int b, int c) { 3657 if (mLayout == null) { 3658 invalidate(); 3659 } else { 3660 if (a >= 0 || b >= 0 || c >= 0) { 3661 int first = Math.min(Math.min(a, b), c); 3662 int last = Math.max(Math.max(a, b), c); 3663 3664 int line = mLayout.getLineForOffset(first); 3665 int top = mLayout.getLineTop(line); 3666 3667 // This is ridiculous, but the descent from the line above 3668 // can hang down into the line we really want to redraw, 3669 // so we have to invalidate part of the line above to make 3670 // sure everything that needs to be redrawn really is. 3671 // (But not the whole line above, because that would cause 3672 // the same problem with the descenders on the line above it!) 3673 if (line > 0) { 3674 top -= mLayout.getLineDescent(line - 1); 3675 } 3676 3677 int line2; 3678 3679 if (first == last) 3680 line2 = line; 3681 else 3682 line2 = mLayout.getLineForOffset(last); 3683 3684 int bottom = mLayout.getLineTop(line2 + 1); 3685 int voffset = getVerticalOffset(true); 3686 3687 int left = getCompoundPaddingLeft() + mScrollX; 3688 invalidate(left, top + voffset + getExtendedPaddingTop(), 3689 left + getWidth() - getCompoundPaddingLeft() - 3690 getCompoundPaddingRight(), 3691 bottom + voffset + getExtendedPaddingTop()); 3692 } 3693 } 3694 } 3695 3696 private void registerForPreDraw() { 3697 final ViewTreeObserver observer = getViewTreeObserver(); 3698 if (observer == null) { 3699 return; 3700 } 3701 3702 if (mPreDrawState == PREDRAW_NOT_REGISTERED) { 3703 observer.addOnPreDrawListener(this); 3704 mPreDrawState = PREDRAW_PENDING; 3705 } else if (mPreDrawState == PREDRAW_DONE) { 3706 mPreDrawState = PREDRAW_PENDING; 3707 } 3708 3709 // else state is PREDRAW_PENDING, so keep waiting. 3710 } 3711 3712 /** 3713 * {@inheritDoc} 3714 */ 3715 public boolean onPreDraw() { 3716 if (mPreDrawState != PREDRAW_PENDING) { 3717 return true; 3718 } 3719 3720 if (mLayout == null) { 3721 assumeLayout(); 3722 } 3723 3724 boolean changed = false; 3725 3726 SelectionModifierCursorController selectionController = null; 3727 if (mSelectionModifierCursorController != null) { 3728 selectionController = (SelectionModifierCursorController) 3729 mSelectionModifierCursorController; 3730 } 3731 3732 3733 if (mMovement != null) { 3734 /* This code also provides auto-scrolling when a cursor is moved using a 3735 * CursorController (insertion point or selection limits). 3736 * For selection, ensure start or end is visible depending on controller's state. 3737 */ 3738 int curs = getSelectionEnd(); 3739 if (selectionController != null && selectionController.isSelectionStartDragged()) { 3740 curs = getSelectionStart(); 3741 } 3742 3743 /* 3744 * TODO: This should really only keep the end in view if 3745 * it already was before the text changed. I'm not sure 3746 * of a good way to tell from here if it was. 3747 */ 3748 if (curs < 0 && 3749 (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 3750 curs = mText.length(); 3751 } 3752 3753 if (curs >= 0) { 3754 changed = bringPointIntoView(curs); 3755 } 3756 } else { 3757 changed = bringTextIntoView(); 3758 } 3759 3760 // This has to be checked here since: 3761 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 3762 // a screen rotation) since layout is not yet initialized at that point. 3763 // - ExtractEditText does not call onFocus when it is displayed. Fixing this issue would 3764 // allow to test for hasSelection in onFocusChanged, which would trigger a 3765 // startTextSelectionMode here. TODO 3766 if (selectionController != null && hasSelection()) { 3767 startSelectionActionMode(); 3768 } 3769 3770 mPreDrawState = PREDRAW_DONE; 3771 return !changed; 3772 } 3773 3774 @Override 3775 protected void onAttachedToWindow() { 3776 super.onAttachedToWindow(); 3777 3778 mTemporaryDetach = false; 3779 3780 if (mShowErrorAfterAttach) { 3781 showError(); 3782 mShowErrorAfterAttach = false; 3783 } 3784 } 3785 3786 @Override 3787 protected void onDetachedFromWindow() { 3788 super.onDetachedFromWindow(); 3789 3790 if (mPreDrawState != PREDRAW_NOT_REGISTERED) { 3791 final ViewTreeObserver observer = getViewTreeObserver(); 3792 if (observer != null) { 3793 observer.removeOnPreDrawListener(this); 3794 mPreDrawState = PREDRAW_NOT_REGISTERED; 3795 } 3796 } 3797 3798 if (mError != null) { 3799 hideError(); 3800 } 3801 3802 hideControllers(); 3803 } 3804 3805 @Override 3806 protected boolean isPaddingOffsetRequired() { 3807 return mShadowRadius != 0 || mDrawables != null; 3808 } 3809 3810 @Override 3811 protected int getLeftPaddingOffset() { 3812 return getCompoundPaddingLeft() - mPaddingLeft + 3813 (int) Math.min(0, mShadowDx - mShadowRadius); 3814 } 3815 3816 @Override 3817 protected int getTopPaddingOffset() { 3818 return (int) Math.min(0, mShadowDy - mShadowRadius); 3819 } 3820 3821 @Override 3822 protected int getBottomPaddingOffset() { 3823 return (int) Math.max(0, mShadowDy + mShadowRadius); 3824 } 3825 3826 @Override 3827 protected int getRightPaddingOffset() { 3828 return -(getCompoundPaddingRight() - mPaddingRight) + 3829 (int) Math.max(0, mShadowDx + mShadowRadius); 3830 } 3831 3832 @Override 3833 protected boolean verifyDrawable(Drawable who) { 3834 final boolean verified = super.verifyDrawable(who); 3835 if (!verified && mDrawables != null) { 3836 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 3837 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom; 3838 } 3839 return verified; 3840 } 3841 3842 @Override 3843 public void invalidateDrawable(Drawable drawable) { 3844 if (verifyDrawable(drawable)) { 3845 final Rect dirty = drawable.getBounds(); 3846 int scrollX = mScrollX; 3847 int scrollY = mScrollY; 3848 3849 // IMPORTANT: The coordinates below are based on the coordinates computed 3850 // for each compound drawable in onDraw(). Make sure to update each section 3851 // accordingly. 3852 final TextView.Drawables drawables = mDrawables; 3853 if (drawables != null) { 3854 if (drawable == drawables.mDrawableLeft) { 3855 final int compoundPaddingTop = getCompoundPaddingTop(); 3856 final int compoundPaddingBottom = getCompoundPaddingBottom(); 3857 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 3858 3859 scrollX += mPaddingLeft; 3860 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 3861 } else if (drawable == drawables.mDrawableRight) { 3862 final int compoundPaddingTop = getCompoundPaddingTop(); 3863 final int compoundPaddingBottom = getCompoundPaddingBottom(); 3864 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 3865 3866 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 3867 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 3868 } else if (drawable == drawables.mDrawableTop) { 3869 final int compoundPaddingLeft = getCompoundPaddingLeft(); 3870 final int compoundPaddingRight = getCompoundPaddingRight(); 3871 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 3872 3873 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 3874 scrollY += mPaddingTop; 3875 } else if (drawable == drawables.mDrawableBottom) { 3876 final int compoundPaddingLeft = getCompoundPaddingLeft(); 3877 final int compoundPaddingRight = getCompoundPaddingRight(); 3878 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 3879 3880 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 3881 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 3882 } 3883 } 3884 3885 invalidate(dirty.left + scrollX, dirty.top + scrollY, 3886 dirty.right + scrollX, dirty.bottom + scrollY); 3887 } 3888 } 3889 3890 @Override 3891 protected boolean onSetAlpha(int alpha) { 3892 if (mMovement == null && getBackground() == null) { 3893 mCurrentAlpha = alpha; 3894 final Drawables dr = mDrawables; 3895 if (dr != null) { 3896 if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha); 3897 if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha); 3898 if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha); 3899 if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha); 3900 } 3901 return true; 3902 } 3903 return false; 3904 } 3905 3906 @Override 3907 protected void onDraw(Canvas canvas) { 3908 restartMarqueeIfNeeded(); 3909 3910 // Draw the background for this view 3911 super.onDraw(canvas); 3912 3913 final int compoundPaddingLeft = getCompoundPaddingLeft(); 3914 final int compoundPaddingTop = getCompoundPaddingTop(); 3915 final int compoundPaddingRight = getCompoundPaddingRight(); 3916 final int compoundPaddingBottom = getCompoundPaddingBottom(); 3917 final int scrollX = mScrollX; 3918 final int scrollY = mScrollY; 3919 final int right = mRight; 3920 final int left = mLeft; 3921 final int bottom = mBottom; 3922 final int top = mTop; 3923 3924 final Drawables dr = mDrawables; 3925 if (dr != null) { 3926 /* 3927 * Compound, not extended, because the icon is not clipped 3928 * if the text height is smaller. 3929 */ 3930 3931 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 3932 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 3933 3934 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 3935 // Make sure to update invalidateDrawable() when changing this code. 3936 if (dr.mDrawableLeft != null) { 3937 canvas.save(); 3938 canvas.translate(scrollX + mPaddingLeft, 3939 scrollY + compoundPaddingTop + 3940 (vspace - dr.mDrawableHeightLeft) / 2); 3941 dr.mDrawableLeft.draw(canvas); 3942 canvas.restore(); 3943 } 3944 3945 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 3946 // Make sure to update invalidateDrawable() when changing this code. 3947 if (dr.mDrawableRight != null) { 3948 canvas.save(); 3949 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 3950 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 3951 dr.mDrawableRight.draw(canvas); 3952 canvas.restore(); 3953 } 3954 3955 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 3956 // Make sure to update invalidateDrawable() when changing this code. 3957 if (dr.mDrawableTop != null) { 3958 canvas.save(); 3959 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 3960 scrollY + mPaddingTop); 3961 dr.mDrawableTop.draw(canvas); 3962 canvas.restore(); 3963 } 3964 3965 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 3966 // Make sure to update invalidateDrawable() when changing this code. 3967 if (dr.mDrawableBottom != null) { 3968 canvas.save(); 3969 canvas.translate(scrollX + compoundPaddingLeft + 3970 (hspace - dr.mDrawableWidthBottom) / 2, 3971 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 3972 dr.mDrawableBottom.draw(canvas); 3973 canvas.restore(); 3974 } 3975 } 3976 3977 if (mPreDrawState == PREDRAW_DONE) { 3978 final ViewTreeObserver observer = getViewTreeObserver(); 3979 if (observer != null) { 3980 observer.removeOnPreDrawListener(this); 3981 mPreDrawState = PREDRAW_NOT_REGISTERED; 3982 } 3983 } 3984 3985 int color = mCurTextColor; 3986 3987 if (mLayout == null) { 3988 assumeLayout(); 3989 } 3990 3991 Layout layout = mLayout; 3992 int cursorcolor = color; 3993 3994 if (mHint != null && mText.length() == 0) { 3995 if (mHintTextColor != null) { 3996 color = mCurHintTextColor; 3997 } 3998 3999 layout = mHintLayout; 4000 } 4001 4002 mTextPaint.setColor(color); 4003 mTextPaint.setAlpha(mCurrentAlpha); 4004 mTextPaint.drawableState = getDrawableState(); 4005 4006 canvas.save(); 4007 /* Would be faster if we didn't have to do this. Can we chop the 4008 (displayable) text so that we don't need to do this ever? 4009 */ 4010 4011 int extendedPaddingTop = getExtendedPaddingTop(); 4012 int extendedPaddingBottom = getExtendedPaddingBottom(); 4013 4014 float clipLeft = compoundPaddingLeft + scrollX; 4015 float clipTop = extendedPaddingTop + scrollY; 4016 float clipRight = right - left - compoundPaddingRight + scrollX; 4017 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 4018 4019 if (mShadowRadius != 0) { 4020 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4021 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4022 4023 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4024 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4025 } 4026 4027 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4028 4029 int voffsetText = 0; 4030 int voffsetCursor = 0; 4031 4032 // translate in by our padding 4033 { 4034 /* shortcircuit calling getVerticaOffset() */ 4035 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4036 voffsetText = getVerticalOffset(false); 4037 voffsetCursor = getVerticalOffset(true); 4038 } 4039 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4040 } 4041 4042 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4043 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4044 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4045 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4046 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4047 } 4048 4049 if (mMarquee != null && mMarquee.isRunning()) { 4050 canvas.translate(-mMarquee.mScroll, 0.0f); 4051 } 4052 } 4053 4054 Path highlight = null; 4055 int selStart = -1, selEnd = -1; 4056 4057 // If there is no movement method, then there can be no selection. 4058 // Check that first and attempt to skip everything having to do with 4059 // the cursor. 4060 // XXX This is not strictly true -- a program could set the 4061 // selection manually if it really wanted to. 4062 if (mMovement != null && (isFocused() || isPressed())) { 4063 selStart = getSelectionStart(); 4064 selEnd = getSelectionEnd(); 4065 4066 if (mCursorVisible && selStart >= 0 && isEnabled()) { 4067 if (mHighlightPath == null) 4068 mHighlightPath = new Path(); 4069 4070 if (selStart == selEnd) { 4071 if ((SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 4072 if (mHighlightPathBogus) { 4073 mHighlightPath.reset(); 4074 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4075 mHighlightPathBogus = false; 4076 } 4077 4078 // XXX should pass to skin instead of drawing directly 4079 mHighlightPaint.setColor(cursorcolor); 4080 mHighlightPaint.setStyle(Paint.Style.STROKE); 4081 4082 highlight = mHighlightPath; 4083 } 4084 } else { 4085 if (mHighlightPathBogus) { 4086 mHighlightPath.reset(); 4087 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4088 mHighlightPathBogus = false; 4089 } 4090 4091 // XXX should pass to skin instead of drawing directly 4092 mHighlightPaint.setColor(mHighlightColor); 4093 mHighlightPaint.setStyle(Paint.Style.FILL); 4094 4095 highlight = mHighlightPath; 4096 } 4097 } 4098 } 4099 4100 /* Comment out until we decide what to do about animations 4101 boolean isLinearTextOn = false; 4102 if (currentTransformation != null) { 4103 isLinearTextOn = mTextPaint.isLinearTextOn(); 4104 Matrix m = currentTransformation.getMatrix(); 4105 if (!m.isIdentity()) { 4106 // mTextPaint.setLinearTextOn(true); 4107 } 4108 } 4109 */ 4110 4111 final InputMethodState ims = mInputMethodState; 4112 if (ims != null && ims.mBatchEditNesting == 0) { 4113 InputMethodManager imm = InputMethodManager.peekInstance(); 4114 if (imm != null) { 4115 if (imm.isActive(this)) { 4116 boolean reported = false; 4117 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4118 // We are in extract mode and the content has changed 4119 // in some way... just report complete new text to the 4120 // input method. 4121 reported = reportExtractedText(); 4122 } 4123 if (!reported && highlight != null) { 4124 int candStart = -1; 4125 int candEnd = -1; 4126 if (mText instanceof Spannable) { 4127 Spannable sp = (Spannable)mText; 4128 candStart = EditableInputConnection.getComposingSpanStart(sp); 4129 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 4130 } 4131 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 4132 } 4133 } 4134 4135 if (imm.isWatchingCursor(this) && highlight != null) { 4136 highlight.computeBounds(ims.mTmpRectF, true); 4137 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 4138 4139 canvas.getMatrix().mapPoints(ims.mTmpOffset); 4140 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 4141 4142 ims.mTmpRectF.offset(0, voffsetCursor - voffsetText); 4143 4144 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 4145 (int)(ims.mTmpRectF.top + 0.5), 4146 (int)(ims.mTmpRectF.right + 0.5), 4147 (int)(ims.mTmpRectF.bottom + 0.5)); 4148 4149 imm.updateCursor(this, 4150 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 4151 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 4152 } 4153 } 4154 } 4155 4156 layout.draw(canvas, highlight, mHighlightPaint, voffsetCursor - voffsetText); 4157 4158 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 4159 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 4160 layout.draw(canvas, highlight, mHighlightPaint, voffsetCursor - voffsetText); 4161 } 4162 4163 /* Comment out until we decide what to do about animations 4164 if (currentTransformation != null) { 4165 mTextPaint.setLinearTextOn(isLinearTextOn); 4166 } 4167 */ 4168 4169 canvas.restore(); 4170 4171 if (mInsertionPointCursorController != null && 4172 mInsertionPointCursorController.isShowing()) { 4173 mInsertionPointCursorController.updatePosition(); 4174 } 4175 if (mSelectionModifierCursorController != null && 4176 mSelectionModifierCursorController.isShowing()) { 4177 mSelectionModifierCursorController.updatePosition(); 4178 } 4179 } 4180 4181 @Override 4182 public void getFocusedRect(Rect r) { 4183 if (mLayout == null) { 4184 super.getFocusedRect(r); 4185 return; 4186 } 4187 4188 int sel = getSelectionEnd(); 4189 if (sel < 0) { 4190 super.getFocusedRect(r); 4191 return; 4192 } 4193 4194 int line = mLayout.getLineForOffset(sel); 4195 r.top = mLayout.getLineTop(line); 4196 r.bottom = mLayout.getLineBottom(line); 4197 4198 r.left = (int) mLayout.getPrimaryHorizontal(sel); 4199 r.right = r.left + 1; 4200 4201 // Adjust for padding and gravity. 4202 int paddingLeft = getCompoundPaddingLeft(); 4203 int paddingTop = getExtendedPaddingTop(); 4204 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4205 paddingTop += getVerticalOffset(false); 4206 } 4207 r.offset(paddingLeft, paddingTop); 4208 } 4209 4210 /** 4211 * Return the number of lines of text, or 0 if the internal Layout has not 4212 * been built. 4213 */ 4214 public int getLineCount() { 4215 return mLayout != null ? mLayout.getLineCount() : 0; 4216 } 4217 4218 /** 4219 * Return the baseline for the specified line (0...getLineCount() - 1) 4220 * If bounds is not null, return the top, left, right, bottom extents 4221 * of the specified line in it. If the internal Layout has not been built, 4222 * return 0 and set bounds to (0, 0, 0, 0) 4223 * @param line which line to examine (0..getLineCount() - 1) 4224 * @param bounds Optional. If not null, it returns the extent of the line 4225 * @return the Y-coordinate of the baseline 4226 */ 4227 public int getLineBounds(int line, Rect bounds) { 4228 if (mLayout == null) { 4229 if (bounds != null) { 4230 bounds.set(0, 0, 0, 0); 4231 } 4232 return 0; 4233 } 4234 else { 4235 int baseline = mLayout.getLineBounds(line, bounds); 4236 4237 int voffset = getExtendedPaddingTop(); 4238 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4239 voffset += getVerticalOffset(true); 4240 } 4241 if (bounds != null) { 4242 bounds.offset(getCompoundPaddingLeft(), voffset); 4243 } 4244 return baseline + voffset; 4245 } 4246 } 4247 4248 @Override 4249 public int getBaseline() { 4250 if (mLayout == null) { 4251 return super.getBaseline(); 4252 } 4253 4254 int voffset = 0; 4255 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4256 voffset = getVerticalOffset(true); 4257 } 4258 4259 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 4260 } 4261 4262 @Override 4263 public boolean onKeyDown(int keyCode, KeyEvent event) { 4264 int which = doKeyDown(keyCode, event, null); 4265 if (which == 0) { 4266 // Go through default dispatching. 4267 return super.onKeyDown(keyCode, event); 4268 } 4269 4270 return true; 4271 } 4272 4273 @Override 4274 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 4275 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 4276 4277 int which = doKeyDown(keyCode, down, event); 4278 if (which == 0) { 4279 // Go through default dispatching. 4280 return super.onKeyMultiple(keyCode, repeatCount, event); 4281 } 4282 if (which == -1) { 4283 // Consumed the whole thing. 4284 return true; 4285 } 4286 4287 repeatCount--; 4288 4289 // We are going to dispatch the remaining events to either the input 4290 // or movement method. To do this, we will just send a repeated stream 4291 // of down and up events until we have done the complete repeatCount. 4292 // It would be nice if those interfaces had an onKeyMultiple() method, 4293 // but adding that is a more complicated change. 4294 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 4295 if (which == 1) { 4296 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4297 while (--repeatCount > 0) { 4298 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 4299 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4300 } 4301 if (mError != null && !mErrorWasChanged) { 4302 setError(null, null); 4303 } 4304 4305 } else if (which == 2) { 4306 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4307 while (--repeatCount > 0) { 4308 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 4309 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4310 } 4311 } 4312 4313 return true; 4314 } 4315 4316 /** 4317 * Returns true if pressing ENTER in this field advances focus instead 4318 * of inserting the character. This is true mostly in single-line fields, 4319 * but also in mail addresses and subjects which will display on multiple 4320 * lines but where it doesn't make sense to insert newlines. 4321 */ 4322 private boolean shouldAdvanceFocusOnEnter() { 4323 if (mInput == null) { 4324 return false; 4325 } 4326 4327 if (mSingleLine) { 4328 return true; 4329 } 4330 4331 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4332 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4333 4334 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 4335 variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 4336 return true; 4337 } 4338 } 4339 4340 return false; 4341 } 4342 4343 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 4344 if (!isEnabled()) { 4345 return 0; 4346 } 4347 4348 switch (keyCode) { 4349 case KeyEvent.KEYCODE_ENTER: 4350 // If ALT modifier is held, then we always insert a 4351 // newline character. 4352 if ((event.getMetaState()&KeyEvent.META_ALT_ON) == 0) { 4353 4354 // When mInputContentType is set, we know that we are 4355 // running in a "modern" cupcake environment, so don't need 4356 // to worry about the application trying to capture 4357 // enter key events. 4358 if (mInputContentType != null) { 4359 4360 // If there is an action listener, given them a 4361 // chance to consume the event. 4362 if (mInputContentType.onEditorActionListener != null && 4363 mInputContentType.onEditorActionListener.onEditorAction( 4364 this, EditorInfo.IME_NULL, event)) { 4365 mInputContentType.enterDown = true; 4366 // We are consuming the enter key for them. 4367 return -1; 4368 } 4369 } 4370 4371 // If our editor should move focus when enter is pressed, or 4372 // this is a generated event from an IME action button, then 4373 // don't let it be inserted into the text. 4374 if ((event.getFlags()&KeyEvent.FLAG_EDITOR_ACTION) != 0 4375 || shouldAdvanceFocusOnEnter()) { 4376 return -1; 4377 } 4378 } 4379 break; 4380 4381 case KeyEvent.KEYCODE_DPAD_CENTER: 4382 if (shouldAdvanceFocusOnEnter()) { 4383 return 0; 4384 } 4385 break; 4386 4387 // Has to be done on key down (and not on key up) to correctly be intercepted. 4388 case KeyEvent.KEYCODE_BACK: 4389 if (mSelectionActionMode != null) { 4390 stopSelectionActionMode(); 4391 return -1; 4392 } 4393 break; 4394 } 4395 4396 if (mInput != null) { 4397 /* 4398 * Keep track of what the error was before doing the input 4399 * so that if an input filter changed the error, we leave 4400 * that error showing. Otherwise, we take down whatever 4401 * error was showing when the user types something. 4402 */ 4403 mErrorWasChanged = false; 4404 4405 boolean doDown = true; 4406 if (otherEvent != null) { 4407 try { 4408 beginBatchEdit(); 4409 boolean handled = mInput.onKeyOther(this, (Editable) mText, 4410 otherEvent); 4411 if (mError != null && !mErrorWasChanged) { 4412 setError(null, null); 4413 } 4414 doDown = false; 4415 if (handled) { 4416 return -1; 4417 } 4418 } catch (AbstractMethodError e) { 4419 // onKeyOther was added after 1.0, so if it isn't 4420 // implemented we need to try to dispatch as a regular down. 4421 } finally { 4422 endBatchEdit(); 4423 } 4424 } 4425 4426 if (doDown) { 4427 beginBatchEdit(); 4428 if (mInput.onKeyDown(this, (Editable) mText, keyCode, event)) { 4429 endBatchEdit(); 4430 if (mError != null && !mErrorWasChanged) { 4431 setError(null, null); 4432 } 4433 return 1; 4434 } 4435 endBatchEdit(); 4436 } 4437 } 4438 4439 // bug 650865: sometimes we get a key event before a layout. 4440 // don't try to move around if we don't know the layout. 4441 4442 if (mMovement != null && mLayout != null) { 4443 boolean doDown = true; 4444 if (otherEvent != null) { 4445 try { 4446 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 4447 otherEvent); 4448 doDown = false; 4449 if (handled) { 4450 return -1; 4451 } 4452 } catch (AbstractMethodError e) { 4453 // onKeyOther was added after 1.0, so if it isn't 4454 // implemented we need to try to dispatch as a regular down. 4455 } 4456 } 4457 if (doDown) { 4458 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 4459 return 2; 4460 } 4461 } 4462 4463 return 0; 4464 } 4465 4466 @Override 4467 public boolean onKeyUp(int keyCode, KeyEvent event) { 4468 if (!isEnabled()) { 4469 return super.onKeyUp(keyCode, event); 4470 } 4471 4472 hideControllers(); 4473 4474 switch (keyCode) { 4475 case KeyEvent.KEYCODE_DPAD_CENTER: 4476 /* 4477 * If there is a click listener, just call through to 4478 * super, which will invoke it. 4479 * 4480 * If there isn't a click listener, try to show the soft 4481 * input method. (It will also 4482 * call performClick(), but that won't do anything in 4483 * this case.) 4484 */ 4485 if (mOnClickListener == null) { 4486 if (mMovement != null && mText instanceof Editable 4487 && mLayout != null && onCheckIsTextEditor()) { 4488 InputMethodManager imm = (InputMethodManager) 4489 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 4490 imm.showSoftInput(this, 0); 4491 } 4492 } 4493 return super.onKeyUp(keyCode, event); 4494 4495 case KeyEvent.KEYCODE_ENTER: 4496 if (mInputContentType != null 4497 && mInputContentType.onEditorActionListener != null 4498 && mInputContentType.enterDown) { 4499 mInputContentType.enterDown = false; 4500 if (mInputContentType.onEditorActionListener.onEditorAction( 4501 this, EditorInfo.IME_NULL, event)) { 4502 return true; 4503 } 4504 } 4505 4506 if ((event.getFlags()&KeyEvent.FLAG_EDITOR_ACTION) != 0 4507 || shouldAdvanceFocusOnEnter()) { 4508 /* 4509 * If there is a click listener, just call through to 4510 * super, which will invoke it. 4511 * 4512 * If there isn't a click listener, try to advance focus, 4513 * but still call through to super, which will reset the 4514 * pressed state and longpress state. (It will also 4515 * call performClick(), but that won't do anything in 4516 * this case.) 4517 */ 4518 if (mOnClickListener == null) { 4519 View v = focusSearch(FOCUS_DOWN); 4520 4521 if (v != null) { 4522 if (!v.requestFocus(FOCUS_DOWN)) { 4523 throw new IllegalStateException("focus search returned a view " + 4524 "that wasn't able to take focus!"); 4525 } 4526 4527 /* 4528 * Return true because we handled the key; super 4529 * will return false because there was no click 4530 * listener. 4531 */ 4532 super.onKeyUp(keyCode, event); 4533 return true; 4534 } else if ((event.getFlags() 4535 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 4536 // No target for next focus, but make sure the IME 4537 // if this came from it. 4538 InputMethodManager imm = InputMethodManager.peekInstance(); 4539 if (imm != null) { 4540 imm.hideSoftInputFromWindow(getWindowToken(), 0); 4541 } 4542 } 4543 } 4544 4545 return super.onKeyUp(keyCode, event); 4546 } 4547 break; 4548 } 4549 4550 if (mInput != null) 4551 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 4552 return true; 4553 4554 if (mMovement != null && mLayout != null) 4555 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 4556 return true; 4557 4558 return super.onKeyUp(keyCode, event); 4559 } 4560 4561 @Override public boolean onCheckIsTextEditor() { 4562 return mInputType != EditorInfo.TYPE_NULL; 4563 } 4564 4565 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4566 if (onCheckIsTextEditor()) { 4567 if (mInputMethodState == null) { 4568 mInputMethodState = new InputMethodState(); 4569 } 4570 outAttrs.inputType = mInputType; 4571 if (mInputContentType != null) { 4572 outAttrs.imeOptions = mInputContentType.imeOptions; 4573 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 4574 outAttrs.actionLabel = mInputContentType.imeActionLabel; 4575 outAttrs.actionId = mInputContentType.imeActionId; 4576 outAttrs.extras = mInputContentType.extras; 4577 } else { 4578 outAttrs.imeOptions = EditorInfo.IME_NULL; 4579 } 4580 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 4581 == EditorInfo.IME_ACTION_UNSPECIFIED) { 4582 if (focusSearch(FOCUS_DOWN) != null) { 4583 // An action has not been set, but the enter key will move to 4584 // the next focus, so set the action to that. 4585 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 4586 } else { 4587 // An action has not been set, and there is no focus to move 4588 // to, so let's just supply a "done" action. 4589 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 4590 } 4591 if (!shouldAdvanceFocusOnEnter()) { 4592 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 4593 } 4594 } 4595 if ((outAttrs.inputType & (InputType.TYPE_MASK_CLASS 4596 | InputType.TYPE_TEXT_FLAG_MULTI_LINE)) 4597 == (InputType.TYPE_CLASS_TEXT 4598 | InputType.TYPE_TEXT_FLAG_MULTI_LINE)) { 4599 // Multi-line text editors should always show an enter key. 4600 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 4601 } 4602 outAttrs.hintText = mHint; 4603 if (mText instanceof Editable) { 4604 InputConnection ic = new EditableInputConnection(this); 4605 outAttrs.initialSelStart = getSelectionStart(); 4606 outAttrs.initialSelEnd = getSelectionEnd(); 4607 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 4608 return ic; 4609 } 4610 } 4611 return null; 4612 } 4613 4614 /** 4615 * If this TextView contains editable content, extract a portion of it 4616 * based on the information in <var>request</var> in to <var>outText</var>. 4617 * @return Returns true if the text was successfully extracted, else false. 4618 */ 4619 public boolean extractText(ExtractedTextRequest request, 4620 ExtractedText outText) { 4621 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 4622 EXTRACT_UNKNOWN, outText); 4623 } 4624 4625 static final int EXTRACT_NOTHING = -2; 4626 static final int EXTRACT_UNKNOWN = -1; 4627 4628 boolean extractTextInternal(ExtractedTextRequest request, 4629 int partialStartOffset, int partialEndOffset, int delta, 4630 ExtractedText outText) { 4631 final CharSequence content = mText; 4632 if (content != null) { 4633 if (partialStartOffset != EXTRACT_NOTHING) { 4634 final int N = content.length(); 4635 if (partialStartOffset < 0) { 4636 outText.partialStartOffset = outText.partialEndOffset = -1; 4637 partialStartOffset = 0; 4638 partialEndOffset = N; 4639 } else { 4640 // Now use the delta to determine the actual amount of text 4641 // we need. 4642 partialEndOffset += delta; 4643 // Adjust offsets to ensure we contain full spans. 4644 if (content instanceof Spanned) { 4645 Spanned spanned = (Spanned)content; 4646 Object[] spans = spanned.getSpans(partialStartOffset, 4647 partialEndOffset, ParcelableSpan.class); 4648 int i = spans.length; 4649 while (i > 0) { 4650 i--; 4651 int j = spanned.getSpanStart(spans[i]); 4652 if (j < partialStartOffset) partialStartOffset = j; 4653 j = spanned.getSpanEnd(spans[i]); 4654 if (j > partialEndOffset) partialEndOffset = j; 4655 } 4656 } 4657 outText.partialStartOffset = partialStartOffset; 4658 outText.partialEndOffset = partialEndOffset - delta; 4659 4660 if (partialStartOffset > N) { 4661 partialStartOffset = N; 4662 } else if (partialStartOffset < 0) { 4663 partialStartOffset = 0; 4664 } 4665 if (partialEndOffset > N) { 4666 partialEndOffset = N; 4667 } else if (partialEndOffset < 0) { 4668 partialEndOffset = 0; 4669 } 4670 } 4671 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 4672 outText.text = content.subSequence(partialStartOffset, 4673 partialEndOffset); 4674 } else { 4675 outText.text = TextUtils.substring(content, partialStartOffset, 4676 partialEndOffset); 4677 } 4678 } else { 4679 outText.partialStartOffset = 0; 4680 outText.partialEndOffset = 0; 4681 outText.text = ""; 4682 } 4683 outText.flags = 0; 4684 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 4685 outText.flags |= ExtractedText.FLAG_SELECTING; 4686 } 4687 if (mSingleLine) { 4688 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 4689 } 4690 outText.startOffset = 0; 4691 outText.selectionStart = getSelectionStart(); 4692 outText.selectionEnd = getSelectionEnd(); 4693 return true; 4694 } 4695 return false; 4696 } 4697 4698 boolean reportExtractedText() { 4699 final InputMethodState ims = mInputMethodState; 4700 if (ims != null) { 4701 final boolean contentChanged = ims.mContentChanged; 4702 if (contentChanged || ims.mSelectionModeChanged) { 4703 ims.mContentChanged = false; 4704 ims.mSelectionModeChanged = false; 4705 final ExtractedTextRequest req = mInputMethodState.mExtracting; 4706 if (req != null) { 4707 InputMethodManager imm = InputMethodManager.peekInstance(); 4708 if (imm != null) { 4709 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 4710 + ims.mChangedStart + " end=" + ims.mChangedEnd 4711 + " delta=" + ims.mChangedDelta); 4712 if (ims.mChangedStart < 0 && !contentChanged) { 4713 ims.mChangedStart = EXTRACT_NOTHING; 4714 } 4715 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 4716 ims.mChangedDelta, ims.mTmpExtracted)) { 4717 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 4718 + ims.mTmpExtracted.partialStartOffset 4719 + " end=" + ims.mTmpExtracted.partialEndOffset 4720 + ": " + ims.mTmpExtracted.text); 4721 imm.updateExtractedText(this, req.token, 4722 mInputMethodState.mTmpExtracted); 4723 ims.mChangedStart = EXTRACT_UNKNOWN; 4724 ims.mChangedEnd = EXTRACT_UNKNOWN; 4725 ims.mChangedDelta = 0; 4726 ims.mContentChanged = false; 4727 return true; 4728 } 4729 } 4730 } 4731 } 4732 } 4733 return false; 4734 } 4735 4736 /** 4737 * This is used to remove all style-impacting spans from text before new 4738 * extracted text is being replaced into it, so that we don't have any 4739 * lingering spans applied during the replace. 4740 */ 4741 static void removeParcelableSpans(Spannable spannable, int start, int end) { 4742 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 4743 int i = spans.length; 4744 while (i > 0) { 4745 i--; 4746 spannable.removeSpan(spans[i]); 4747 } 4748 } 4749 4750 /** 4751 * Apply to this text view the given extracted text, as previously 4752 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 4753 */ 4754 public void setExtractedText(ExtractedText text) { 4755 Editable content = getEditableText(); 4756 if (text.text != null) { 4757 if (content == null) { 4758 setText(text.text, TextView.BufferType.EDITABLE); 4759 } else if (text.partialStartOffset < 0) { 4760 removeParcelableSpans(content, 0, content.length()); 4761 content.replace(0, content.length(), text.text); 4762 } else { 4763 final int N = content.length(); 4764 int start = text.partialStartOffset; 4765 if (start > N) start = N; 4766 int end = text.partialEndOffset; 4767 if (end > N) end = N; 4768 removeParcelableSpans(content, start, end); 4769 content.replace(start, end, text.text); 4770 } 4771 } 4772 4773 // Now set the selection position... make sure it is in range, to 4774 // avoid crashes. If this is a partial update, it is possible that 4775 // the underlying text may have changed, causing us problems here. 4776 // Also we just don't want to trust clients to do the right thing. 4777 Spannable sp = (Spannable)getText(); 4778 final int N = sp.length(); 4779 int start = text.selectionStart; 4780 if (start < 0) start = 0; 4781 else if (start > N) start = N; 4782 int end = text.selectionEnd; 4783 if (end < 0) end = 0; 4784 else if (end > N) end = N; 4785 Selection.setSelection(sp, start, end); 4786 4787 // Finally, update the selection mode. 4788 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 4789 MetaKeyKeyListener.startSelecting(this, sp); 4790 } else { 4791 MetaKeyKeyListener.stopSelecting(this, sp); 4792 } 4793 } 4794 4795 /** 4796 * @hide 4797 */ 4798 public void setExtracting(ExtractedTextRequest req) { 4799 if (mInputMethodState != null) { 4800 mInputMethodState.mExtracting = req; 4801 } 4802 hideControllers(); 4803 } 4804 4805 /** 4806 * Called by the framework in response to a text completion from 4807 * the current input method, provided by it calling 4808 * {@link InputConnection#commitCompletion 4809 * InputConnection.commitCompletion()}. The default implementation does 4810 * nothing; text views that are supporting auto-completion should override 4811 * this to do their desired behavior. 4812 * 4813 * @param text The auto complete text the user has selected. 4814 */ 4815 public void onCommitCompletion(CompletionInfo text) { 4816 } 4817 4818 public void beginBatchEdit() { 4819 final InputMethodState ims = mInputMethodState; 4820 if (ims != null) { 4821 int nesting = ++ims.mBatchEditNesting; 4822 if (nesting == 1) { 4823 ims.mCursorChanged = false; 4824 ims.mChangedDelta = 0; 4825 if (ims.mContentChanged) { 4826 // We already have a pending change from somewhere else, 4827 // so turn this into a full update. 4828 ims.mChangedStart = 0; 4829 ims.mChangedEnd = mText.length(); 4830 } else { 4831 ims.mChangedStart = EXTRACT_UNKNOWN; 4832 ims.mChangedEnd = EXTRACT_UNKNOWN; 4833 ims.mContentChanged = false; 4834 } 4835 onBeginBatchEdit(); 4836 } 4837 } 4838 } 4839 4840 public void endBatchEdit() { 4841 final InputMethodState ims = mInputMethodState; 4842 if (ims != null) { 4843 int nesting = --ims.mBatchEditNesting; 4844 if (nesting == 0) { 4845 finishBatchEdit(ims); 4846 } 4847 } 4848 } 4849 4850 void ensureEndedBatchEdit() { 4851 final InputMethodState ims = mInputMethodState; 4852 if (ims != null && ims.mBatchEditNesting != 0) { 4853 ims.mBatchEditNesting = 0; 4854 finishBatchEdit(ims); 4855 } 4856 } 4857 4858 void finishBatchEdit(final InputMethodState ims) { 4859 onEndBatchEdit(); 4860 4861 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4862 updateAfterEdit(); 4863 reportExtractedText(); 4864 } else if (ims.mCursorChanged) { 4865 // Cheezy way to get us to report the current cursor location. 4866 invalidateCursor(); 4867 } 4868 } 4869 4870 void updateAfterEdit() { 4871 invalidate(); 4872 int curs = getSelectionStart(); 4873 4874 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == 4875 Gravity.BOTTOM) { 4876 registerForPreDraw(); 4877 } 4878 4879 if (curs >= 0) { 4880 mHighlightPathBogus = true; 4881 4882 if (isFocused()) { 4883 mShowCursor = SystemClock.uptimeMillis(); 4884 makeBlink(); 4885 } 4886 } 4887 4888 checkForResize(); 4889 } 4890 4891 /** 4892 * Called by the framework in response to a request to begin a batch 4893 * of edit operations through a call to link {@link #beginBatchEdit()}. 4894 */ 4895 public void onBeginBatchEdit() { 4896 } 4897 4898 /** 4899 * Called by the framework in response to a request to end a batch 4900 * of edit operations through a call to link {@link #endBatchEdit}. 4901 */ 4902 public void onEndBatchEdit() { 4903 } 4904 4905 /** 4906 * Called by the framework in response to a private command from the 4907 * current method, provided by it calling 4908 * {@link InputConnection#performPrivateCommand 4909 * InputConnection.performPrivateCommand()}. 4910 * 4911 * @param action The action name of the command. 4912 * @param data Any additional data for the command. This may be null. 4913 * @return Return true if you handled the command, else false. 4914 */ 4915 public boolean onPrivateIMECommand(String action, Bundle data) { 4916 return false; 4917 } 4918 4919 private void nullLayouts() { 4920 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 4921 mSavedLayout = (BoringLayout) mLayout; 4922 } 4923 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 4924 mSavedHintLayout = (BoringLayout) mHintLayout; 4925 } 4926 4927 mLayout = mHintLayout = null; 4928 } 4929 4930 /** 4931 * Make a new Layout based on the already-measured size of the view, 4932 * on the assumption that it was measured correctly at some point. 4933 */ 4934 private void assumeLayout() { 4935 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 4936 4937 if (width < 1) { 4938 width = 0; 4939 } 4940 4941 int physicalWidth = width; 4942 4943 if (mHorizontallyScrolling) { 4944 width = VERY_WIDE; 4945 } 4946 4947 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 4948 physicalWidth, false); 4949 } 4950 4951 /** 4952 * The width passed in is now the desired layout width, 4953 * not the full view width with padding. 4954 * {@hide} 4955 */ 4956 protected void makeNewLayout(int w, int hintWidth, 4957 BoringLayout.Metrics boring, 4958 BoringLayout.Metrics hintBoring, 4959 int ellipsisWidth, boolean bringIntoView) { 4960 stopMarquee(); 4961 4962 mHighlightPathBogus = true; 4963 4964 if (w < 0) { 4965 w = 0; 4966 } 4967 if (hintWidth < 0) { 4968 hintWidth = 0; 4969 } 4970 4971 Layout.Alignment alignment; 4972 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 4973 case Gravity.CENTER_HORIZONTAL: 4974 alignment = Layout.Alignment.ALIGN_CENTER; 4975 break; 4976 4977 case Gravity.RIGHT: 4978 // Note, Layout resolves ALIGN_OPPOSITE to left or 4979 // right based on the paragraph direction. 4980 alignment = Layout.Alignment.ALIGN_OPPOSITE; 4981 break; 4982 4983 default: 4984 alignment = Layout.Alignment.ALIGN_NORMAL; 4985 } 4986 4987 boolean shouldEllipsize = mEllipsize != null && mInput == null; 4988 4989 if (mText instanceof Spannable) { 4990 mLayout = new DynamicLayout(mText, mTransformed, mTextPaint, w, 4991 alignment, mSpacingMult, 4992 mSpacingAdd, mIncludePad, mInput == null ? mEllipsize : null, 4993 ellipsisWidth); 4994 } else { 4995 if (boring == UNKNOWN_BORING) { 4996 boring = BoringLayout.isBoring(mTransformed, mTextPaint, 4997 mBoring); 4998 if (boring != null) { 4999 mBoring = boring; 5000 } 5001 } 5002 5003 if (boring != null) { 5004 if (boring.width <= w && 5005 (mEllipsize == null || boring.width <= ellipsisWidth)) { 5006 if (mSavedLayout != null) { 5007 mLayout = mSavedLayout. 5008 replaceOrMake(mTransformed, mTextPaint, 5009 w, alignment, mSpacingMult, mSpacingAdd, 5010 boring, mIncludePad); 5011 } else { 5012 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5013 w, alignment, mSpacingMult, mSpacingAdd, 5014 boring, mIncludePad); 5015 } 5016 5017 mSavedLayout = (BoringLayout) mLayout; 5018 } else if (shouldEllipsize && boring.width <= w) { 5019 if (mSavedLayout != null) { 5020 mLayout = mSavedLayout. 5021 replaceOrMake(mTransformed, mTextPaint, 5022 w, alignment, mSpacingMult, mSpacingAdd, 5023 boring, mIncludePad, mEllipsize, 5024 ellipsisWidth); 5025 } else { 5026 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5027 w, alignment, mSpacingMult, mSpacingAdd, 5028 boring, mIncludePad, mEllipsize, 5029 ellipsisWidth); 5030 } 5031 } else if (shouldEllipsize) { 5032 mLayout = new StaticLayout(mTransformed, 5033 0, mTransformed.length(), 5034 mTextPaint, w, alignment, mSpacingMult, 5035 mSpacingAdd, mIncludePad, mEllipsize, 5036 ellipsisWidth); 5037 } else { 5038 mLayout = new StaticLayout(mTransformed, mTextPaint, 5039 w, alignment, mSpacingMult, mSpacingAdd, 5040 mIncludePad); 5041 } 5042 } else if (shouldEllipsize) { 5043 mLayout = new StaticLayout(mTransformed, 5044 0, mTransformed.length(), 5045 mTextPaint, w, alignment, mSpacingMult, 5046 mSpacingAdd, mIncludePad, mEllipsize, 5047 ellipsisWidth); 5048 } else { 5049 mLayout = new StaticLayout(mTransformed, mTextPaint, 5050 w, alignment, mSpacingMult, mSpacingAdd, 5051 mIncludePad); 5052 } 5053 } 5054 5055 shouldEllipsize = mEllipsize != null; 5056 mHintLayout = null; 5057 5058 if (mHint != null) { 5059 if (shouldEllipsize) hintWidth = w; 5060 5061 if (hintBoring == UNKNOWN_BORING) { 5062 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, 5063 mHintBoring); 5064 if (hintBoring != null) { 5065 mHintBoring = hintBoring; 5066 } 5067 } 5068 5069 if (hintBoring != null) { 5070 if (hintBoring.width <= hintWidth && 5071 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 5072 if (mSavedHintLayout != null) { 5073 mHintLayout = mSavedHintLayout. 5074 replaceOrMake(mHint, mTextPaint, 5075 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5076 hintBoring, mIncludePad); 5077 } else { 5078 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5079 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5080 hintBoring, mIncludePad); 5081 } 5082 5083 mSavedHintLayout = (BoringLayout) mHintLayout; 5084 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 5085 if (mSavedHintLayout != null) { 5086 mHintLayout = mSavedHintLayout. 5087 replaceOrMake(mHint, mTextPaint, 5088 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5089 hintBoring, mIncludePad, mEllipsize, 5090 ellipsisWidth); 5091 } else { 5092 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5093 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5094 hintBoring, mIncludePad, mEllipsize, 5095 ellipsisWidth); 5096 } 5097 } else if (shouldEllipsize) { 5098 mHintLayout = new StaticLayout(mHint, 5099 0, mHint.length(), 5100 mTextPaint, hintWidth, alignment, mSpacingMult, 5101 mSpacingAdd, mIncludePad, mEllipsize, 5102 ellipsisWidth); 5103 } else { 5104 mHintLayout = new StaticLayout(mHint, mTextPaint, 5105 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5106 mIncludePad); 5107 } 5108 } else if (shouldEllipsize) { 5109 mHintLayout = new StaticLayout(mHint, 5110 0, mHint.length(), 5111 mTextPaint, hintWidth, alignment, mSpacingMult, 5112 mSpacingAdd, mIncludePad, mEllipsize, 5113 ellipsisWidth); 5114 } else { 5115 mHintLayout = new StaticLayout(mHint, mTextPaint, 5116 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5117 mIncludePad); 5118 } 5119 } 5120 5121 if (bringIntoView) { 5122 registerForPreDraw(); 5123 } 5124 5125 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 5126 if (!compressText(ellipsisWidth)) { 5127 final int height = mLayoutParams.height; 5128 // If the size of the view does not depend on the size of the text, try to 5129 // start the marquee immediately 5130 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 5131 startMarquee(); 5132 } else { 5133 // Defer the start of the marquee until we know our width (see setFrame()) 5134 mRestartMarquee = true; 5135 } 5136 } 5137 } 5138 5139 // CursorControllers need a non-null mLayout 5140 prepareCursorControllers(); 5141 } 5142 5143 private boolean compressText(float width) { 5144 if (isHardwareAccelerated()) return false; 5145 5146 // Only compress the text if it hasn't been compressed by the previous pass 5147 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 5148 mTextPaint.getTextScaleX() == 1.0f) { 5149 final float textWidth = mLayout.getLineWidth(0); 5150 final float overflow = (textWidth + 1.0f - width) / width; 5151 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 5152 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 5153 post(new Runnable() { 5154 public void run() { 5155 requestLayout(); 5156 } 5157 }); 5158 return true; 5159 } 5160 } 5161 5162 return false; 5163 } 5164 5165 private static int desired(Layout layout) { 5166 int n = layout.getLineCount(); 5167 CharSequence text = layout.getText(); 5168 float max = 0; 5169 5170 // if any line was wrapped, we can't use it. 5171 // but it's ok for the last line not to have a newline 5172 5173 for (int i = 0; i < n - 1; i++) { 5174 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 5175 return -1; 5176 } 5177 5178 for (int i = 0; i < n; i++) { 5179 max = Math.max(max, layout.getLineWidth(i)); 5180 } 5181 5182 return (int) FloatMath.ceil(max); 5183 } 5184 5185 /** 5186 * Set whether the TextView includes extra top and bottom padding to make 5187 * room for accents that go above the normal ascent and descent. 5188 * The default is true. 5189 * 5190 * @attr ref android.R.styleable#TextView_includeFontPadding 5191 */ 5192 public void setIncludeFontPadding(boolean includepad) { 5193 mIncludePad = includepad; 5194 5195 if (mLayout != null) { 5196 nullLayouts(); 5197 requestLayout(); 5198 invalidate(); 5199 } 5200 } 5201 5202 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 5203 5204 @Override 5205 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 5206 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 5207 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 5208 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 5209 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 5210 5211 int width; 5212 int height; 5213 5214 BoringLayout.Metrics boring = UNKNOWN_BORING; 5215 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 5216 5217 int des = -1; 5218 boolean fromexisting = false; 5219 5220 if (widthMode == MeasureSpec.EXACTLY) { 5221 // Parent has told us how big to be. So be it. 5222 width = widthSize; 5223 } else { 5224 if (mLayout != null && mEllipsize == null) { 5225 des = desired(mLayout); 5226 } 5227 5228 if (des < 0) { 5229 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mBoring); 5230 if (boring != null) { 5231 mBoring = boring; 5232 } 5233 } else { 5234 fromexisting = true; 5235 } 5236 5237 if (boring == null || boring == UNKNOWN_BORING) { 5238 if (des < 0) { 5239 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 5240 } 5241 5242 width = des; 5243 } else { 5244 width = boring.width; 5245 } 5246 5247 final Drawables dr = mDrawables; 5248 if (dr != null) { 5249 width = Math.max(width, dr.mDrawableWidthTop); 5250 width = Math.max(width, dr.mDrawableWidthBottom); 5251 } 5252 5253 if (mHint != null) { 5254 int hintDes = -1; 5255 int hintWidth; 5256 5257 if (mHintLayout != null && mEllipsize == null) { 5258 hintDes = desired(mHintLayout); 5259 } 5260 5261 if (hintDes < 0) { 5262 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 5263 if (hintBoring != null) { 5264 mHintBoring = hintBoring; 5265 } 5266 } 5267 5268 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 5269 if (hintDes < 0) { 5270 hintDes = (int) FloatMath.ceil( 5271 Layout.getDesiredWidth(mHint, mTextPaint)); 5272 } 5273 5274 hintWidth = hintDes; 5275 } else { 5276 hintWidth = hintBoring.width; 5277 } 5278 5279 if (hintWidth > width) { 5280 width = hintWidth; 5281 } 5282 } 5283 5284 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 5285 5286 if (mMaxWidthMode == EMS) { 5287 width = Math.min(width, mMaxWidth * getLineHeight()); 5288 } else { 5289 width = Math.min(width, mMaxWidth); 5290 } 5291 5292 if (mMinWidthMode == EMS) { 5293 width = Math.max(width, mMinWidth * getLineHeight()); 5294 } else { 5295 width = Math.max(width, mMinWidth); 5296 } 5297 5298 // Check against our minimum width 5299 width = Math.max(width, getSuggestedMinimumWidth()); 5300 5301 if (widthMode == MeasureSpec.AT_MOST) { 5302 width = Math.min(widthSize, width); 5303 } 5304 } 5305 5306 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5307 int unpaddedWidth = want; 5308 int hintWant = want; 5309 5310 if (mHorizontallyScrolling) 5311 want = VERY_WIDE; 5312 5313 int hintWidth = mHintLayout == null ? hintWant : mHintLayout.getWidth(); 5314 5315 if (mLayout == null) { 5316 makeNewLayout(want, hintWant, boring, hintBoring, 5317 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5318 } else if ((mLayout.getWidth() != want) || (hintWidth != hintWant) || 5319 (mLayout.getEllipsizedWidth() != 5320 width - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 5321 if (mHint == null && mEllipsize == null && 5322 want > mLayout.getWidth() && 5323 (mLayout instanceof BoringLayout || 5324 (fromexisting && des >= 0 && des <= want))) { 5325 mLayout.increaseWidthTo(want); 5326 } else { 5327 makeNewLayout(want, hintWant, boring, hintBoring, 5328 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5329 } 5330 } else { 5331 // Width has not changed. 5332 } 5333 5334 if (heightMode == MeasureSpec.EXACTLY) { 5335 // Parent has told us how big to be. So be it. 5336 height = heightSize; 5337 mDesiredHeightAtMeasure = -1; 5338 } else { 5339 int desired = getDesiredHeight(); 5340 5341 height = desired; 5342 mDesiredHeightAtMeasure = desired; 5343 5344 if (heightMode == MeasureSpec.AT_MOST) { 5345 height = Math.min(desired, heightSize); 5346 } 5347 } 5348 5349 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 5350 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 5351 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 5352 } 5353 5354 /* 5355 * We didn't let makeNewLayout() register to bring the cursor into view, 5356 * so do it here if there is any possibility that it is needed. 5357 */ 5358 if (mMovement != null || 5359 mLayout.getWidth() > unpaddedWidth || 5360 mLayout.getHeight() > unpaddedHeight) { 5361 registerForPreDraw(); 5362 } else { 5363 scrollTo(0, 0); 5364 } 5365 5366 setMeasuredDimension(width, height); 5367 } 5368 5369 private int getDesiredHeight() { 5370 return Math.max( 5371 getDesiredHeight(mLayout, true), 5372 getDesiredHeight(mHintLayout, mEllipsize != null)); 5373 } 5374 5375 private int getDesiredHeight(Layout layout, boolean cap) { 5376 if (layout == null) { 5377 return 0; 5378 } 5379 5380 int linecount = layout.getLineCount(); 5381 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 5382 int desired = layout.getLineTop(linecount); 5383 5384 final Drawables dr = mDrawables; 5385 if (dr != null) { 5386 desired = Math.max(desired, dr.mDrawableHeightLeft); 5387 desired = Math.max(desired, dr.mDrawableHeightRight); 5388 } 5389 5390 desired += pad; 5391 5392 if (mMaxMode == LINES) { 5393 /* 5394 * Don't cap the hint to a certain number of lines. 5395 * (Do cap it, though, if we have a maximum pixel height.) 5396 */ 5397 if (cap) { 5398 if (linecount > mMaximum) { 5399 desired = layout.getLineTop(mMaximum) + 5400 layout.getBottomPadding(); 5401 5402 if (dr != null) { 5403 desired = Math.max(desired, dr.mDrawableHeightLeft); 5404 desired = Math.max(desired, dr.mDrawableHeightRight); 5405 } 5406 5407 desired += pad; 5408 linecount = mMaximum; 5409 } 5410 } 5411 } else { 5412 desired = Math.min(desired, mMaximum); 5413 } 5414 5415 if (mMinMode == LINES) { 5416 if (linecount < mMinimum) { 5417 desired += getLineHeight() * (mMinimum - linecount); 5418 } 5419 } else { 5420 desired = Math.max(desired, mMinimum); 5421 } 5422 5423 // Check against our minimum height 5424 desired = Math.max(desired, getSuggestedMinimumHeight()); 5425 5426 return desired; 5427 } 5428 5429 /** 5430 * Check whether a change to the existing text layout requires a 5431 * new view layout. 5432 */ 5433 private void checkForResize() { 5434 boolean sizeChanged = false; 5435 5436 if (mLayout != null) { 5437 // Check if our width changed 5438 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 5439 sizeChanged = true; 5440 invalidate(); 5441 } 5442 5443 // Check if our height changed 5444 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 5445 int desiredHeight = getDesiredHeight(); 5446 5447 if (desiredHeight != this.getHeight()) { 5448 sizeChanged = true; 5449 } 5450 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 5451 if (mDesiredHeightAtMeasure >= 0) { 5452 int desiredHeight = getDesiredHeight(); 5453 5454 if (desiredHeight != mDesiredHeightAtMeasure) { 5455 sizeChanged = true; 5456 } 5457 } 5458 } 5459 } 5460 5461 if (sizeChanged) { 5462 requestLayout(); 5463 // caller will have already invalidated 5464 } 5465 } 5466 5467 /** 5468 * Check whether entirely new text requires a new view layout 5469 * or merely a new text layout. 5470 */ 5471 private void checkForRelayout() { 5472 // If we have a fixed width, we can just swap in a new text layout 5473 // if the text height stays the same or if the view height is fixed. 5474 5475 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 5476 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 5477 (mHint == null || mHintLayout != null) && 5478 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 5479 // Static width, so try making a new text layout. 5480 5481 int oldht = mLayout.getHeight(); 5482 int want = mLayout.getWidth(); 5483 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 5484 5485 /* 5486 * No need to bring the text into view, since the size is not 5487 * changing (unless we do the requestLayout(), in which case it 5488 * will happen at measure). 5489 */ 5490 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 5491 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 5492 false); 5493 5494 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 5495 // In a fixed-height view, so use our new text layout. 5496 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 5497 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 5498 invalidate(); 5499 return; 5500 } 5501 5502 // Dynamic height, but height has stayed the same, 5503 // so use our new text layout. 5504 if (mLayout.getHeight() == oldht && 5505 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 5506 invalidate(); 5507 return; 5508 } 5509 } 5510 5511 // We lose: the height has changed and we have a dynamic height. 5512 // Request a new view layout using our new text layout. 5513 requestLayout(); 5514 invalidate(); 5515 } else { 5516 // Dynamic width, so we have no choice but to request a new 5517 // view layout with a new text layout. 5518 5519 nullLayouts(); 5520 requestLayout(); 5521 invalidate(); 5522 } 5523 } 5524 5525 /** 5526 * Returns true if anything changed. 5527 */ 5528 private boolean bringTextIntoView() { 5529 int line = 0; 5530 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5531 line = mLayout.getLineCount() - 1; 5532 } 5533 5534 Layout.Alignment a = mLayout.getParagraphAlignment(line); 5535 int dir = mLayout.getParagraphDirection(line); 5536 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5537 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 5538 int ht = mLayout.getHeight(); 5539 5540 int scrollx, scrolly; 5541 5542 if (a == Layout.Alignment.ALIGN_CENTER) { 5543 /* 5544 * Keep centered if possible, or, if it is too wide to fit, 5545 * keep leading edge in view. 5546 */ 5547 5548 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5549 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5550 5551 if (right - left < hspace) { 5552 scrollx = (right + left) / 2 - hspace / 2; 5553 } else { 5554 if (dir < 0) { 5555 scrollx = right - hspace; 5556 } else { 5557 scrollx = left; 5558 } 5559 } 5560 } else if (a == Layout.Alignment.ALIGN_NORMAL) { 5561 /* 5562 * Keep leading edge in view. 5563 */ 5564 5565 if (dir < 0) { 5566 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5567 scrollx = right - hspace; 5568 } else { 5569 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5570 } 5571 } else /* a == Layout.Alignment.ALIGN_OPPOSITE */ { 5572 /* 5573 * Keep trailing edge in view. 5574 */ 5575 5576 if (dir < 0) { 5577 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5578 } else { 5579 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5580 scrollx = right - hspace; 5581 } 5582 } 5583 5584 if (ht < vspace) { 5585 scrolly = 0; 5586 } else { 5587 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5588 scrolly = ht - vspace; 5589 } else { 5590 scrolly = 0; 5591 } 5592 } 5593 5594 if (scrollx != mScrollX || scrolly != mScrollY) { 5595 scrollTo(scrollx, scrolly); 5596 return true; 5597 } else { 5598 return false; 5599 } 5600 } 5601 5602 /** 5603 * Move the point, specified by the offset, into the view if it is needed. 5604 * This has to be called after layout. Returns true if anything changed. 5605 */ 5606 public boolean bringPointIntoView(int offset) { 5607 boolean changed = false; 5608 5609 int line = mLayout.getLineForOffset(offset); 5610 5611 // FIXME: Is it okay to truncate this, or should we round? 5612 final int x = (int)mLayout.getPrimaryHorizontal(offset); 5613 final int top = mLayout.getLineTop(line); 5614 final int bottom = mLayout.getLineTop(line + 1); 5615 5616 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5617 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5618 int ht = mLayout.getHeight(); 5619 5620 int grav; 5621 5622 switch (mLayout.getParagraphAlignment(line)) { 5623 case ALIGN_NORMAL: 5624 grav = 1; 5625 break; 5626 5627 case ALIGN_OPPOSITE: 5628 grav = -1; 5629 break; 5630 5631 default: 5632 grav = 0; 5633 } 5634 5635 grav *= mLayout.getParagraphDirection(line); 5636 5637 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5638 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 5639 5640 int hslack = (bottom - top) / 2; 5641 int vslack = hslack; 5642 5643 if (vslack > vspace / 4) 5644 vslack = vspace / 4; 5645 if (hslack > hspace / 4) 5646 hslack = hspace / 4; 5647 5648 int hs = mScrollX; 5649 int vs = mScrollY; 5650 5651 if (top - vs < vslack) 5652 vs = top - vslack; 5653 if (bottom - vs > vspace - vslack) 5654 vs = bottom - (vspace - vslack); 5655 if (ht - vs < vspace) 5656 vs = ht - vspace; 5657 if (0 - vs > 0) 5658 vs = 0; 5659 5660 if (grav != 0) { 5661 if (x - hs < hslack) { 5662 hs = x - hslack; 5663 } 5664 if (x - hs > hspace - hslack) { 5665 hs = x - (hspace - hslack); 5666 } 5667 } 5668 5669 if (grav < 0) { 5670 if (left - hs > 0) 5671 hs = left; 5672 if (right - hs < hspace) 5673 hs = right - hspace; 5674 } else if (grav > 0) { 5675 if (right - hs < hspace) 5676 hs = right - hspace; 5677 if (left - hs > 0) 5678 hs = left; 5679 } else /* grav == 0 */ { 5680 if (right - left <= hspace) { 5681 /* 5682 * If the entire text fits, center it exactly. 5683 */ 5684 hs = left - (hspace - (right - left)) / 2; 5685 } else if (x > right - hslack) { 5686 /* 5687 * If we are near the right edge, keep the right edge 5688 * at the edge of the view. 5689 */ 5690 hs = right - hspace; 5691 } else if (x < left + hslack) { 5692 /* 5693 * If we are near the left edge, keep the left edge 5694 * at the edge of the view. 5695 */ 5696 hs = left; 5697 } else if (left > hs) { 5698 /* 5699 * Is there whitespace visible at the left? Fix it if so. 5700 */ 5701 hs = left; 5702 } else if (right < hs + hspace) { 5703 /* 5704 * Is there whitespace visible at the right? Fix it if so. 5705 */ 5706 hs = right - hspace; 5707 } else { 5708 /* 5709 * Otherwise, float as needed. 5710 */ 5711 if (x - hs < hslack) { 5712 hs = x - hslack; 5713 } 5714 if (x - hs > hspace - hslack) { 5715 hs = x - (hspace - hslack); 5716 } 5717 } 5718 } 5719 5720 if (hs != mScrollX || vs != mScrollY) { 5721 if (mScroller == null) { 5722 scrollTo(hs, vs); 5723 } else { 5724 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 5725 int dx = hs - mScrollX; 5726 int dy = vs - mScrollY; 5727 5728 if (duration > ANIMATED_SCROLL_GAP) { 5729 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 5730 awakenScrollBars(mScroller.getDuration()); 5731 invalidate(); 5732 } else { 5733 if (!mScroller.isFinished()) { 5734 mScroller.abortAnimation(); 5735 } 5736 5737 scrollBy(dx, dy); 5738 } 5739 5740 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 5741 } 5742 5743 changed = true; 5744 } 5745 5746 if (isFocused()) { 5747 // This offsets because getInterestingRect() is in terms of 5748 // viewport coordinates, but requestRectangleOnScreen() 5749 // is in terms of content coordinates. 5750 5751 Rect r = new Rect(x, top, x + 1, bottom); 5752 getInterestingRect(r, line); 5753 r.offset(mScrollX, mScrollY); 5754 5755 if (requestRectangleOnScreen(r)) { 5756 changed = true; 5757 } 5758 } 5759 5760 return changed; 5761 } 5762 5763 /** 5764 * Move the cursor, if needed, so that it is at an offset that is visible 5765 * to the user. This will not move the cursor if it represents more than 5766 * one character (a selection range). This will only work if the 5767 * TextView contains spannable text; otherwise it will do nothing. 5768 * 5769 * @return True if the cursor was actually moved, false otherwise. 5770 */ 5771 public boolean moveCursorToVisibleOffset() { 5772 if (!(mText instanceof Spannable)) { 5773 return false; 5774 } 5775 int start = getSelectionStart(); 5776 int end = getSelectionEnd(); 5777 if (start != end) { 5778 return false; 5779 } 5780 5781 // First: make sure the line is visible on screen: 5782 5783 int line = mLayout.getLineForOffset(start); 5784 5785 final int top = mLayout.getLineTop(line); 5786 final int bottom = mLayout.getLineTop(line + 1); 5787 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 5788 int vslack = (bottom - top) / 2; 5789 if (vslack > vspace / 4) 5790 vslack = vspace / 4; 5791 final int vs = mScrollY; 5792 5793 if (top < (vs+vslack)) { 5794 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 5795 } else if (bottom > (vspace+vs-vslack)) { 5796 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 5797 } 5798 5799 // Next: make sure the character is visible on screen: 5800 5801 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5802 final int hs = mScrollX; 5803 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 5804 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 5805 5806 // line might contain bidirectional text 5807 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 5808 final int highChar = leftChar > rightChar ? leftChar : rightChar; 5809 5810 int newStart = start; 5811 if (newStart < lowChar) { 5812 newStart = lowChar; 5813 } else if (newStart > highChar) { 5814 newStart = highChar; 5815 } 5816 5817 if (newStart != start) { 5818 Selection.setSelection((Spannable)mText, newStart); 5819 return true; 5820 } 5821 5822 return false; 5823 } 5824 5825 @Override 5826 public void computeScroll() { 5827 if (mScroller != null) { 5828 if (mScroller.computeScrollOffset()) { 5829 mScrollX = mScroller.getCurrX(); 5830 mScrollY = mScroller.getCurrY(); 5831 postInvalidate(); // So we draw again 5832 } 5833 } 5834 } 5835 5836 private void getInterestingRect(Rect r, int line) { 5837 convertFromViewportToContentCoordinates(r); 5838 5839 // Rectangle can can be expanded on first and last line to take 5840 // padding into account. 5841 // TODO Take left/right padding into account too? 5842 if (line == 0) r.top -= getExtendedPaddingTop(); 5843 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 5844 } 5845 5846 private void convertFromViewportToContentCoordinates(Rect r) { 5847 final int horizontalOffset = viewportToContentHorizontalOffset(); 5848 r.left += horizontalOffset; 5849 r.right += horizontalOffset; 5850 5851 final int verticalOffset = viewportToContentVerticalOffset(); 5852 r.top += verticalOffset; 5853 r.bottom += verticalOffset; 5854 } 5855 5856 private int viewportToContentHorizontalOffset() { 5857 return getCompoundPaddingLeft() - mScrollX; 5858 } 5859 5860 private int viewportToContentVerticalOffset() { 5861 int offset = getExtendedPaddingTop() - mScrollY; 5862 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5863 offset += getVerticalOffset(false); 5864 } 5865 return offset; 5866 } 5867 5868 @Override 5869 public void debug(int depth) { 5870 super.debug(depth); 5871 5872 String output = debugIndent(depth); 5873 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 5874 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 5875 + "} "; 5876 5877 if (mText != null) { 5878 5879 output += "mText=\"" + mText + "\" "; 5880 if (mLayout != null) { 5881 output += "mLayout width=" + mLayout.getWidth() 5882 + " height=" + mLayout.getHeight(); 5883 } 5884 } else { 5885 output += "mText=NULL"; 5886 } 5887 Log.d(VIEW_LOG_TAG, output); 5888 } 5889 5890 /** 5891 * Convenience for {@link Selection#getSelectionStart}. 5892 */ 5893 @ViewDebug.ExportedProperty(category = "text") 5894 public int getSelectionStart() { 5895 return Selection.getSelectionStart(getText()); 5896 } 5897 5898 /** 5899 * Convenience for {@link Selection#getSelectionEnd}. 5900 */ 5901 @ViewDebug.ExportedProperty(category = "text") 5902 public int getSelectionEnd() { 5903 return Selection.getSelectionEnd(getText()); 5904 } 5905 5906 /** 5907 * Return true iff there is a selection inside this text view. 5908 */ 5909 public boolean hasSelection() { 5910 final int selectionStart = getSelectionStart(); 5911 final int selectionEnd = getSelectionEnd(); 5912 5913 return selectionStart >= 0 && selectionStart != selectionEnd; 5914 } 5915 5916 /** 5917 * Sets the properties of this field (lines, horizontally scrolling, 5918 * transformation method) to be for a single-line input. 5919 * 5920 * @attr ref android.R.styleable#TextView_singleLine 5921 */ 5922 public void setSingleLine() { 5923 setSingleLine(true); 5924 } 5925 5926 /** 5927 * If true, sets the properties of this field (lines, horizontally 5928 * scrolling, transformation method) to be for a single-line input; 5929 * if false, restores these to the default conditions. 5930 * Note that calling this with false restores default conditions, 5931 * not necessarily those that were in effect prior to calling 5932 * it with true. 5933 * 5934 * @attr ref android.R.styleable#TextView_singleLine 5935 */ 5936 @android.view.RemotableViewMethod 5937 public void setSingleLine(boolean singleLine) { 5938 if ((mInputType&EditorInfo.TYPE_MASK_CLASS) 5939 == EditorInfo.TYPE_CLASS_TEXT) { 5940 if (singleLine) { 5941 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 5942 } else { 5943 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 5944 } 5945 } 5946 applySingleLine(singleLine, true); 5947 } 5948 5949 private void applySingleLine(boolean singleLine, boolean applyTransformation) { 5950 mSingleLine = singleLine; 5951 if (singleLine) { 5952 setLines(1); 5953 setHorizontallyScrolling(true); 5954 if (applyTransformation) { 5955 setTransformationMethod(SingleLineTransformationMethod. 5956 getInstance()); 5957 } 5958 } else { 5959 setMaxLines(Integer.MAX_VALUE); 5960 setHorizontallyScrolling(false); 5961 if (applyTransformation) { 5962 setTransformationMethod(null); 5963 } 5964 } 5965 } 5966 5967 /** 5968 * Causes words in the text that are longer than the view is wide 5969 * to be ellipsized instead of broken in the middle. You may also 5970 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 5971 * to constrain the text to a single line. Use <code>null</code> 5972 * to turn off ellipsizing. 5973 * 5974 * @attr ref android.R.styleable#TextView_ellipsize 5975 */ 5976 public void setEllipsize(TextUtils.TruncateAt where) { 5977 mEllipsize = where; 5978 5979 if (mLayout != null) { 5980 nullLayouts(); 5981 requestLayout(); 5982 invalidate(); 5983 } 5984 } 5985 5986 /** 5987 * Sets how many times to repeat the marquee animation. Only applied if the 5988 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 5989 * 5990 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 5991 */ 5992 public void setMarqueeRepeatLimit(int marqueeLimit) { 5993 mMarqueeRepeatLimit = marqueeLimit; 5994 } 5995 5996 /** 5997 * Returns where, if anywhere, words that are longer than the view 5998 * is wide should be ellipsized. 5999 */ 6000 @ViewDebug.ExportedProperty 6001 public TextUtils.TruncateAt getEllipsize() { 6002 return mEllipsize; 6003 } 6004 6005 /** 6006 * Set the TextView so that when it takes focus, all the text is 6007 * selected. 6008 * 6009 * @attr ref android.R.styleable#TextView_selectAllOnFocus 6010 */ 6011 @android.view.RemotableViewMethod 6012 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 6013 mSelectAllOnFocus = selectAllOnFocus; 6014 6015 if (selectAllOnFocus && !(mText instanceof Spannable)) { 6016 setText(mText, BufferType.SPANNABLE); 6017 } 6018 } 6019 6020 /** 6021 * Set whether the cursor is visible. The default is true. 6022 * 6023 * @attr ref android.R.styleable#TextView_cursorVisible 6024 */ 6025 @android.view.RemotableViewMethod 6026 public void setCursorVisible(boolean visible) { 6027 mCursorVisible = visible; 6028 invalidate(); 6029 6030 if (visible) { 6031 makeBlink(); 6032 } else if (mBlink != null) { 6033 mBlink.removeCallbacks(mBlink); 6034 } 6035 6036 // InsertionPointCursorController depends on mCursorVisible 6037 prepareCursorControllers(); 6038 } 6039 6040 private boolean canMarquee() { 6041 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6042 return width > 0 && mLayout.getLineWidth(0) > width; 6043 } 6044 6045 private void startMarquee() { 6046 // Do not ellipsize EditText 6047 if (mInput != null) return; 6048 6049 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 6050 return; 6051 } 6052 6053 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 6054 getLineCount() == 1 && canMarquee()) { 6055 6056 if (mMarquee == null) mMarquee = new Marquee(this); 6057 mMarquee.start(mMarqueeRepeatLimit); 6058 } 6059 } 6060 6061 private void stopMarquee() { 6062 if (mMarquee != null && !mMarquee.isStopped()) { 6063 mMarquee.stop(); 6064 } 6065 } 6066 6067 private void startStopMarquee(boolean start) { 6068 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6069 if (start) { 6070 startMarquee(); 6071 } else { 6072 stopMarquee(); 6073 } 6074 } 6075 } 6076 6077 private static final class Marquee extends Handler { 6078 // TODO: Add an option to configure this 6079 private static final float MARQUEE_DELTA_MAX = 0.07f; 6080 private static final int MARQUEE_DELAY = 1200; 6081 private static final int MARQUEE_RESTART_DELAY = 1200; 6082 private static final int MARQUEE_RESOLUTION = 1000 / 30; 6083 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 6084 6085 private static final byte MARQUEE_STOPPED = 0x0; 6086 private static final byte MARQUEE_STARTING = 0x1; 6087 private static final byte MARQUEE_RUNNING = 0x2; 6088 6089 private static final int MESSAGE_START = 0x1; 6090 private static final int MESSAGE_TICK = 0x2; 6091 private static final int MESSAGE_RESTART = 0x3; 6092 6093 private final WeakReference<TextView> mView; 6094 6095 private byte mStatus = MARQUEE_STOPPED; 6096 private final float mScrollUnit; 6097 private float mMaxScroll; 6098 float mMaxFadeScroll; 6099 private float mGhostStart; 6100 private float mGhostOffset; 6101 private float mFadeStop; 6102 private int mRepeatLimit; 6103 6104 float mScroll; 6105 6106 Marquee(TextView v) { 6107 final float density = v.getContext().getResources().getDisplayMetrics().density; 6108 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 6109 mView = new WeakReference<TextView>(v); 6110 } 6111 6112 @Override 6113 public void handleMessage(Message msg) { 6114 switch (msg.what) { 6115 case MESSAGE_START: 6116 mStatus = MARQUEE_RUNNING; 6117 tick(); 6118 break; 6119 case MESSAGE_TICK: 6120 tick(); 6121 break; 6122 case MESSAGE_RESTART: 6123 if (mStatus == MARQUEE_RUNNING) { 6124 if (mRepeatLimit >= 0) { 6125 mRepeatLimit--; 6126 } 6127 start(mRepeatLimit); 6128 } 6129 break; 6130 } 6131 } 6132 6133 void tick() { 6134 if (mStatus != MARQUEE_RUNNING) { 6135 return; 6136 } 6137 6138 removeMessages(MESSAGE_TICK); 6139 6140 final TextView textView = mView.get(); 6141 if (textView != null && (textView.isFocused() || textView.isSelected())) { 6142 mScroll += mScrollUnit; 6143 if (mScroll > mMaxScroll) { 6144 mScroll = mMaxScroll; 6145 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 6146 } else { 6147 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 6148 } 6149 textView.invalidate(); 6150 } 6151 } 6152 6153 void stop() { 6154 mStatus = MARQUEE_STOPPED; 6155 removeMessages(MESSAGE_START); 6156 removeMessages(MESSAGE_RESTART); 6157 removeMessages(MESSAGE_TICK); 6158 resetScroll(); 6159 } 6160 6161 private void resetScroll() { 6162 mScroll = 0.0f; 6163 final TextView textView = mView.get(); 6164 if (textView != null) textView.invalidate(); 6165 } 6166 6167 void start(int repeatLimit) { 6168 if (repeatLimit == 0) { 6169 stop(); 6170 return; 6171 } 6172 mRepeatLimit = repeatLimit; 6173 final TextView textView = mView.get(); 6174 if (textView != null && textView.mLayout != null) { 6175 mStatus = MARQUEE_STARTING; 6176 mScroll = 0.0f; 6177 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 6178 textView.getCompoundPaddingRight(); 6179 final float lineWidth = textView.mLayout.getLineWidth(0); 6180 final float gap = textWidth / 3.0f; 6181 mGhostStart = lineWidth - textWidth + gap; 6182 mMaxScroll = mGhostStart + textWidth; 6183 mGhostOffset = lineWidth + gap; 6184 mFadeStop = lineWidth + textWidth / 6.0f; 6185 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 6186 6187 textView.invalidate(); 6188 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 6189 } 6190 } 6191 6192 float getGhostOffset() { 6193 return mGhostOffset; 6194 } 6195 6196 boolean shouldDrawLeftFade() { 6197 return mScroll <= mFadeStop; 6198 } 6199 6200 boolean shouldDrawGhost() { 6201 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 6202 } 6203 6204 boolean isRunning() { 6205 return mStatus == MARQUEE_RUNNING; 6206 } 6207 6208 boolean isStopped() { 6209 return mStatus == MARQUEE_STOPPED; 6210 } 6211 } 6212 6213 /** 6214 * This method is called when the text is changed, in case any 6215 * subclasses would like to know. 6216 * 6217 * @param text The text the TextView is displaying. 6218 * @param start The offset of the start of the range of the text 6219 * that was modified. 6220 * @param before The offset of the former end of the range of the 6221 * text that was modified. If text was simply inserted, 6222 * this will be the same as <code>start</code>. 6223 * If text was replaced with new text or deleted, the 6224 * length of the old text was <code>before-start</code>. 6225 * @param after The offset of the end of the range of the text 6226 * that was modified. If text was simply deleted, 6227 * this will be the same as <code>start</code>. 6228 * If text was replaced with new text or inserted, 6229 * the length of the new text is <code>after-start</code>. 6230 */ 6231 protected void onTextChanged(CharSequence text, 6232 int start, int before, int after) { 6233 } 6234 6235 /** 6236 * This method is called when the selection has changed, in case any 6237 * subclasses would like to know. 6238 * 6239 * @param selStart The new selection start location. 6240 * @param selEnd The new selection end location. 6241 */ 6242 protected void onSelectionChanged(int selStart, int selEnd) { 6243 } 6244 6245 /** 6246 * Adds a TextWatcher to the list of those whose methods are called 6247 * whenever this TextView's text changes. 6248 * <p> 6249 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 6250 * not called after {@link #setText} calls. Now, doing {@link #setText} 6251 * if there are any text changed listeners forces the buffer type to 6252 * Editable if it would not otherwise be and does call this method. 6253 */ 6254 public void addTextChangedListener(TextWatcher watcher) { 6255 if (mListeners == null) { 6256 mListeners = new ArrayList<TextWatcher>(); 6257 } 6258 6259 mListeners.add(watcher); 6260 } 6261 6262 /** 6263 * Removes the specified TextWatcher from the list of those whose 6264 * methods are called 6265 * whenever this TextView's text changes. 6266 */ 6267 public void removeTextChangedListener(TextWatcher watcher) { 6268 if (mListeners != null) { 6269 int i = mListeners.indexOf(watcher); 6270 6271 if (i >= 0) { 6272 mListeners.remove(i); 6273 } 6274 } 6275 } 6276 6277 private void sendBeforeTextChanged(CharSequence text, int start, int before, 6278 int after) { 6279 if (mListeners != null) { 6280 final ArrayList<TextWatcher> list = mListeners; 6281 final int count = list.size(); 6282 for (int i = 0; i < count; i++) { 6283 list.get(i).beforeTextChanged(text, start, before, after); 6284 } 6285 } 6286 } 6287 6288 /** 6289 * Not private so it can be called from an inner class without going 6290 * through a thunk. 6291 */ 6292 void sendOnTextChanged(CharSequence text, int start, int before, 6293 int after) { 6294 if (mListeners != null) { 6295 final ArrayList<TextWatcher> list = mListeners; 6296 final int count = list.size(); 6297 for (int i = 0; i < count; i++) { 6298 list.get(i).onTextChanged(text, start, before, after); 6299 } 6300 } 6301 } 6302 6303 /** 6304 * Not private so it can be called from an inner class without going 6305 * through a thunk. 6306 */ 6307 void sendAfterTextChanged(Editable text) { 6308 if (mListeners != null) { 6309 final ArrayList<TextWatcher> list = mListeners; 6310 final int count = list.size(); 6311 for (int i = 0; i < count; i++) { 6312 list.get(i).afterTextChanged(text); 6313 } 6314 } 6315 } 6316 6317 /** 6318 * Not private so it can be called from an inner class without going 6319 * through a thunk. 6320 */ 6321 void handleTextChanged(CharSequence buffer, int start, 6322 int before, int after) { 6323 final InputMethodState ims = mInputMethodState; 6324 if (ims == null || ims.mBatchEditNesting == 0) { 6325 updateAfterEdit(); 6326 } 6327 if (ims != null) { 6328 ims.mContentChanged = true; 6329 if (ims.mChangedStart < 0) { 6330 ims.mChangedStart = start; 6331 ims.mChangedEnd = start+before; 6332 } else { 6333 ims.mChangedStart = Math.min(ims.mChangedStart, start); 6334 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 6335 } 6336 ims.mChangedDelta += after-before; 6337 } 6338 6339 sendOnTextChanged(buffer, start, before, after); 6340 onTextChanged(buffer, start, before, after); 6341 6342 // Hide the controller if the amount of content changed 6343 if (before != after) { 6344 hideControllers(); 6345 } 6346 } 6347 6348 /** 6349 * Not private so it can be called from an inner class without going 6350 * through a thunk. 6351 */ 6352 void spanChange(Spanned buf, Object what, int oldStart, int newStart, 6353 int oldEnd, int newEnd) { 6354 // XXX Make the start and end move together if this ends up 6355 // spending too much time invalidating. 6356 6357 boolean selChanged = false; 6358 int newSelStart=-1, newSelEnd=-1; 6359 6360 final InputMethodState ims = mInputMethodState; 6361 6362 if (what == Selection.SELECTION_END) { 6363 mHighlightPathBogus = true; 6364 selChanged = true; 6365 newSelEnd = newStart; 6366 6367 if (!isFocused()) { 6368 mSelectionMoved = true; 6369 } 6370 6371 if (oldStart >= 0 || newStart >= 0) { 6372 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 6373 registerForPreDraw(); 6374 6375 if (isFocused()) { 6376 mShowCursor = SystemClock.uptimeMillis(); 6377 makeBlink(); 6378 } 6379 } 6380 } 6381 6382 if (what == Selection.SELECTION_START) { 6383 mHighlightPathBogus = true; 6384 selChanged = true; 6385 newSelStart = newStart; 6386 6387 if (!isFocused()) { 6388 mSelectionMoved = true; 6389 } 6390 6391 if (oldStart >= 0 || newStart >= 0) { 6392 int end = Selection.getSelectionEnd(buf); 6393 invalidateCursor(end, oldStart, newStart); 6394 } 6395 } 6396 6397 if (selChanged) { 6398 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 6399 if (newSelStart < 0) { 6400 newSelStart = Selection.getSelectionStart(buf); 6401 } 6402 if (newSelEnd < 0) { 6403 newSelEnd = Selection.getSelectionEnd(buf); 6404 } 6405 onSelectionChanged(newSelStart, newSelEnd); 6406 } 6407 } 6408 6409 if (what instanceof UpdateAppearance || 6410 what instanceof ParagraphStyle) { 6411 if (ims == null || ims.mBatchEditNesting == 0) { 6412 invalidate(); 6413 mHighlightPathBogus = true; 6414 checkForResize(); 6415 } else { 6416 ims.mContentChanged = true; 6417 } 6418 } 6419 6420 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 6421 mHighlightPathBogus = true; 6422 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 6423 ims.mSelectionModeChanged = true; 6424 } 6425 6426 if (Selection.getSelectionStart(buf) >= 0) { 6427 if (ims == null || ims.mBatchEditNesting == 0) { 6428 invalidateCursor(); 6429 } else { 6430 ims.mCursorChanged = true; 6431 } 6432 } 6433 } 6434 6435 if (what instanceof ParcelableSpan) { 6436 // If this is a span that can be sent to a remote process, 6437 // the current extract editor would be interested in it. 6438 if (ims != null && ims.mExtracting != null) { 6439 if (ims.mBatchEditNesting != 0) { 6440 if (oldStart >= 0) { 6441 if (ims.mChangedStart > oldStart) { 6442 ims.mChangedStart = oldStart; 6443 } 6444 if (ims.mChangedStart > oldEnd) { 6445 ims.mChangedStart = oldEnd; 6446 } 6447 } 6448 if (newStart >= 0) { 6449 if (ims.mChangedStart > newStart) { 6450 ims.mChangedStart = newStart; 6451 } 6452 if (ims.mChangedStart > newEnd) { 6453 ims.mChangedStart = newEnd; 6454 } 6455 } 6456 } else { 6457 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 6458 + oldStart + "-" + oldEnd + "," 6459 + newStart + "-" + newEnd + what); 6460 ims.mContentChanged = true; 6461 } 6462 } 6463 } 6464 } 6465 6466 private class ChangeWatcher 6467 implements TextWatcher, SpanWatcher { 6468 6469 private CharSequence mBeforeText; 6470 6471 public void beforeTextChanged(CharSequence buffer, int start, 6472 int before, int after) { 6473 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 6474 + " before=" + before + " after=" + after + ": " + buffer); 6475 6476 if (AccessibilityManager.getInstance(mContext).isEnabled() 6477 && !isPasswordInputType(mInputType)) { 6478 mBeforeText = buffer.toString(); 6479 } 6480 6481 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 6482 } 6483 6484 public void onTextChanged(CharSequence buffer, int start, 6485 int before, int after) { 6486 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 6487 + " before=" + before + " after=" + after + ": " + buffer); 6488 TextView.this.handleTextChanged(buffer, start, before, after); 6489 6490 if (AccessibilityManager.getInstance(mContext).isEnabled() && 6491 (isFocused() || isSelected() && 6492 isShown())) { 6493 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 6494 mBeforeText = null; 6495 } 6496 } 6497 6498 public void afterTextChanged(Editable buffer) { 6499 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 6500 TextView.this.sendAfterTextChanged(buffer); 6501 6502 if (MetaKeyKeyListener.getMetaState(buffer, 6503 MetaKeyKeyListener.META_SELECTING) != 0) { 6504 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 6505 } 6506 } 6507 6508 public void onSpanChanged(Spannable buf, 6509 Object what, int s, int e, int st, int en) { 6510 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 6511 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 6512 TextView.this.spanChange(buf, what, s, st, e, en); 6513 } 6514 6515 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 6516 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 6517 + " what=" + what + ": " + buf); 6518 TextView.this.spanChange(buf, what, -1, s, -1, e); 6519 } 6520 6521 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 6522 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 6523 + " what=" + what + ": " + buf); 6524 TextView.this.spanChange(buf, what, s, -1, e, -1); 6525 } 6526 } 6527 6528 private void makeBlink() { 6529 if (!mCursorVisible) { 6530 if (mBlink != null) { 6531 mBlink.removeCallbacks(mBlink); 6532 } 6533 6534 return; 6535 } 6536 6537 if (mBlink == null) 6538 mBlink = new Blink(this); 6539 6540 mBlink.removeCallbacks(mBlink); 6541 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 6542 } 6543 6544 /** 6545 * @hide 6546 */ 6547 @Override 6548 public void dispatchFinishTemporaryDetach() { 6549 mDispatchTemporaryDetach = true; 6550 super.dispatchFinishTemporaryDetach(); 6551 mDispatchTemporaryDetach = false; 6552 } 6553 6554 @Override 6555 public void onStartTemporaryDetach() { 6556 super.onStartTemporaryDetach(); 6557 // Only track when onStartTemporaryDetach() is called directly, 6558 // usually because this instance is an editable field in a list 6559 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 6560 } 6561 6562 @Override 6563 public void onFinishTemporaryDetach() { 6564 super.onFinishTemporaryDetach(); 6565 // Only track when onStartTemporaryDetach() is called directly, 6566 // usually because this instance is an editable field in a list 6567 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 6568 } 6569 6570 @Override 6571 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 6572 if (mTemporaryDetach) { 6573 // If we are temporarily in the detach state, then do nothing. 6574 super.onFocusChanged(focused, direction, previouslyFocusedRect); 6575 return; 6576 } 6577 6578 mShowCursor = SystemClock.uptimeMillis(); 6579 6580 ensureEndedBatchEdit(); 6581 6582 if (focused) { 6583 int selStart = getSelectionStart(); 6584 int selEnd = getSelectionEnd(); 6585 6586 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 6587 // Has to be done before onTakeFocus, which can be overloaded. 6588 if (mLastTouchOffset >= 0) { 6589 // Can happen when a TextView is displayed after its content has been deleted. 6590 mLastTouchOffset = Math.min(mLastTouchOffset, mText.length()); 6591 Selection.setSelection((Spannable) mText, mLastTouchOffset); 6592 } 6593 6594 if (mMovement != null) { 6595 mMovement.onTakeFocus(this, (Spannable) mText, direction); 6596 } 6597 6598 if (mSelectAllOnFocus) { 6599 Selection.setSelection((Spannable) mText, 0, mText.length()); 6600 } 6601 6602 // The DecorView does not have focus when the 'Done' ExtractEditText button is 6603 // pressed. Since it is the ViewRoot's mView, it requests focus before 6604 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 6605 // This special case ensure that we keep current selection in that case. 6606 // It would be better to know why the DecorView does not have focus at that time. 6607 if (((this instanceof ExtractEditText) || mSelectionMoved) && 6608 selStart >= 0 && selEnd >= 0) { 6609 /* 6610 * Someone intentionally set the selection, so let them 6611 * do whatever it is that they wanted to do instead of 6612 * the default on-focus behavior. We reset the selection 6613 * here instead of just skipping the onTakeFocus() call 6614 * because some movement methods do something other than 6615 * just setting the selection in theirs and we still 6616 * need to go through that path. 6617 */ 6618 Selection.setSelection((Spannable) mText, selStart, selEnd); 6619 } 6620 mTouchFocusSelected = true; 6621 } 6622 6623 mFrozenWithFocus = false; 6624 mSelectionMoved = false; 6625 6626 if (mText instanceof Spannable) { 6627 Spannable sp = (Spannable) mText; 6628 MetaKeyKeyListener.resetMetaState(sp); 6629 } 6630 6631 makeBlink(); 6632 6633 if (mError != null) { 6634 showError(); 6635 } 6636 } else { 6637 if (mError != null) { 6638 hideError(); 6639 } 6640 // Don't leave us in the middle of a batch edit. 6641 onEndBatchEdit(); 6642 6643 hideInsertionPointCursorController(); 6644 if (this instanceof ExtractEditText) { 6645 // terminateTextSelectionMode removes selection, which we want to keep when 6646 // ExtractEditText goes out of focus. 6647 final int selStart = getSelectionStart(); 6648 final int selEnd = getSelectionEnd(); 6649 terminateSelectionActionMode(); 6650 Selection.setSelection((Spannable) mText, selStart, selEnd); 6651 } else { 6652 terminateSelectionActionMode(); 6653 } 6654 } 6655 6656 startStopMarquee(focused); 6657 6658 if (mTransformation != null) { 6659 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 6660 } 6661 6662 super.onFocusChanged(focused, direction, previouslyFocusedRect); 6663 } 6664 6665 @Override 6666 public void onWindowFocusChanged(boolean hasWindowFocus) { 6667 super.onWindowFocusChanged(hasWindowFocus); 6668 6669 if (hasWindowFocus) { 6670 if (mBlink != null) { 6671 mBlink.uncancel(); 6672 6673 if (isFocused()) { 6674 mShowCursor = SystemClock.uptimeMillis(); 6675 makeBlink(); 6676 } 6677 } 6678 } else { 6679 if (mBlink != null) { 6680 mBlink.cancel(); 6681 } 6682 // Don't leave us in the middle of a batch edit. 6683 onEndBatchEdit(); 6684 if (mInputContentType != null) { 6685 mInputContentType.enterDown = false; 6686 } 6687 hideControllers(); 6688 } 6689 6690 startStopMarquee(hasWindowFocus); 6691 } 6692 6693 @Override 6694 protected void onVisibilityChanged(View changedView, int visibility) { 6695 super.onVisibilityChanged(changedView, visibility); 6696 if (visibility != VISIBLE) { 6697 hideControllers(); 6698 } 6699 } 6700 6701 /** 6702 * Use {@link BaseInputConnection#removeComposingSpans 6703 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 6704 * state from this text view. 6705 */ 6706 public void clearComposingText() { 6707 if (mText instanceof Spannable) { 6708 BaseInputConnection.removeComposingSpans((Spannable)mText); 6709 } 6710 } 6711 6712 @Override 6713 public void setSelected(boolean selected) { 6714 boolean wasSelected = isSelected(); 6715 6716 super.setSelected(selected); 6717 6718 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6719 if (selected) { 6720 startMarquee(); 6721 } else { 6722 stopMarquee(); 6723 } 6724 } 6725 } 6726 6727 private void onTapUpEvent(int prevStart, int prevEnd) { 6728 final int start = getSelectionStart(); 6729 final int end = getSelectionEnd(); 6730 6731 if (start == end) { 6732 if (start >= prevStart && start < prevEnd) { 6733 // Restore previous selection 6734 Selection.setSelection((Spannable)mText, prevStart, prevEnd); 6735 // Tapping inside the selection displays the cut/copy/paste context menu. 6736 showContextMenu(); 6737 return; 6738 } else { 6739 // Tapping outside stops selection mode, if any 6740 stopSelectionActionMode(); 6741 6742 if (mInsertionPointCursorController != null) { 6743 mInsertionPointCursorController.show(); 6744 } 6745 } 6746 } 6747 } 6748 6749 class CommitSelectionReceiver extends ResultReceiver { 6750 private final int mPrevStart, mPrevEnd; 6751 6752 public CommitSelectionReceiver(int prevStart, int prevEnd) { 6753 super(getHandler()); 6754 mPrevStart = prevStart; 6755 mPrevEnd = prevEnd; 6756 } 6757 6758 @Override 6759 protected void onReceiveResult(int resultCode, Bundle resultData) { 6760 // If this tap was actually used to show the IMM, leave cursor or selection unchanged 6761 // by restoring its previous position. 6762 if (resultCode == InputMethodManager.RESULT_SHOWN) { 6763 final int len = mText.length(); 6764 int start = Math.min(len, mPrevStart); 6765 int end = Math.min(len, mPrevEnd); 6766 Selection.setSelection((Spannable)mText, start, end); 6767 6768 if (hasSelection()) { 6769 startSelectionActionMode(); 6770 } 6771 } 6772 } 6773 } 6774 6775 @Override 6776 public boolean onTouchEvent(MotionEvent event) { 6777 final int action = event.getActionMasked(); 6778 if (action == MotionEvent.ACTION_DOWN) { 6779 if (mInsertionPointCursorController != null) { 6780 mInsertionPointCursorController.onTouchEvent(event); 6781 } 6782 if (mSelectionModifierCursorController != null) { 6783 mSelectionModifierCursorController.onTouchEvent(event); 6784 } 6785 6786 // Reset this state; it will be re-set if super.onTouchEvent 6787 // causes focus to move to the view. 6788 mTouchFocusSelected = false; 6789 mScrolled = false; 6790 } 6791 6792 final boolean superResult = super.onTouchEvent(event); 6793 6794 /* 6795 * Don't handle the release after a long press, because it will 6796 * move the selection away from whatever the menu action was 6797 * trying to affect. 6798 */ 6799 if (mEatTouchRelease && action == MotionEvent.ACTION_UP) { 6800 mEatTouchRelease = false; 6801 return superResult; 6802 } 6803 6804 if ((mMovement != null || onCheckIsTextEditor()) && mText instanceof Spannable && mLayout != null) { 6805 if (mInsertionPointCursorController != null) { 6806 mInsertionPointCursorController.onTouchEvent(event); 6807 } 6808 if (mSelectionModifierCursorController != null) { 6809 mSelectionModifierCursorController.onTouchEvent(event); 6810 } 6811 6812 boolean handled = false; 6813 6814 // Save previous selection, in case this event is used to show the IME. 6815 int oldSelStart = getSelectionStart(); 6816 int oldSelEnd = getSelectionEnd(); 6817 6818 final int oldScrollX = mScrollX; 6819 final int oldScrollY = mScrollY; 6820 6821 if (mMovement != null) { 6822 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 6823 } 6824 6825 if (isTextEditable()) { 6826 if (mScrollX != oldScrollX || mScrollY != oldScrollY) { 6827 // Hide insertion anchor while scrolling. Leave selection. 6828 hideInsertionPointCursorController(); 6829 if (mSelectionModifierCursorController != null && 6830 mSelectionModifierCursorController.isShowing()) { 6831 mSelectionModifierCursorController.updatePosition(); 6832 } 6833 } 6834 if (action == MotionEvent.ACTION_UP && isFocused() && !mScrolled) { 6835 InputMethodManager imm = (InputMethodManager) 6836 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 6837 6838 CommitSelectionReceiver csr = null; 6839 if (getSelectionStart() != oldSelStart || getSelectionEnd() != oldSelEnd || 6840 didTouchFocusSelect()) { 6841 csr = new CommitSelectionReceiver(oldSelStart, oldSelEnd); 6842 } 6843 6844 handled |= imm.showSoftInput(this, 0, csr) && (csr != null); 6845 6846 // Cannot be done by CommitSelectionReceiver, which might not always be called, 6847 // for instance when dealing with an ExtractEditText. 6848 onTapUpEvent(oldSelStart, oldSelEnd); 6849 } 6850 } 6851 6852 if (handled) { 6853 return true; 6854 } 6855 } 6856 6857 return superResult; 6858 } 6859 6860 private void prepareCursorControllers() { 6861 // TODO Add an extra android:cursorController flag to disable the controller? 6862 if (mCursorVisible && mLayout != null) { 6863 if (mInsertionPointCursorController == null) { 6864 mInsertionPointCursorController = new InsertionPointCursorController(); 6865 } 6866 } else { 6867 mInsertionPointCursorController = null; 6868 } 6869 6870 if (canSelectText() && mLayout != null) { 6871 if (mSelectionModifierCursorController == null) { 6872 mSelectionModifierCursorController = new SelectionModifierCursorController(); 6873 } 6874 } else { 6875 // Stop selection mode if the controller becomes unavailable. 6876 stopSelectionActionMode(); 6877 mSelectionModifierCursorController = null; 6878 } 6879 } 6880 6881 /** 6882 * @return True iff this TextView contains a text that can be edited. 6883 */ 6884 private boolean isTextEditable() { 6885 return mText instanceof Editable && onCheckIsTextEditor(); 6886 } 6887 6888 /** 6889 * Returns true, only while processing a touch gesture, if the initial 6890 * touch down event caused focus to move to the text view and as a result 6891 * its selection changed. Only valid while processing the touch gesture 6892 * of interest. 6893 */ 6894 public boolean didTouchFocusSelect() { 6895 return mTouchFocusSelected; 6896 } 6897 6898 @Override 6899 public void cancelLongPress() { 6900 super.cancelLongPress(); 6901 mScrolled = true; 6902 } 6903 6904 @Override 6905 public boolean onTrackballEvent(MotionEvent event) { 6906 if (mMovement != null && mText instanceof Spannable && 6907 mLayout != null) { 6908 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 6909 return true; 6910 } 6911 } 6912 6913 return super.onTrackballEvent(event); 6914 } 6915 6916 public void setScroller(Scroller s) { 6917 mScroller = s; 6918 } 6919 6920 private static class Blink extends Handler implements Runnable { 6921 private final WeakReference<TextView> mView; 6922 private boolean mCancelled; 6923 6924 public Blink(TextView v) { 6925 mView = new WeakReference<TextView>(v); 6926 } 6927 6928 public void run() { 6929 if (mCancelled) { 6930 return; 6931 } 6932 6933 removeCallbacks(Blink.this); 6934 6935 TextView tv = mView.get(); 6936 6937 if (tv != null && tv.isFocused()) { 6938 int st = tv.getSelectionStart(); 6939 int en = tv.getSelectionEnd(); 6940 6941 if (st == en && st >= 0 && en >= 0) { 6942 if (tv.mLayout != null) { 6943 tv.invalidateCursorPath(); 6944 } 6945 6946 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 6947 } 6948 } 6949 } 6950 6951 void cancel() { 6952 if (!mCancelled) { 6953 removeCallbacks(Blink.this); 6954 mCancelled = true; 6955 } 6956 } 6957 6958 void uncancel() { 6959 mCancelled = false; 6960 } 6961 } 6962 6963 @Override 6964 protected float getLeftFadingEdgeStrength() { 6965 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6966 if (mMarquee != null && !mMarquee.isStopped()) { 6967 final Marquee marquee = mMarquee; 6968 if (marquee.shouldDrawLeftFade()) { 6969 return marquee.mScroll / getHorizontalFadingEdgeLength(); 6970 } else { 6971 return 0.0f; 6972 } 6973 } else if (getLineCount() == 1) { 6974 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 6975 case Gravity.LEFT: 6976 return 0.0f; 6977 case Gravity.RIGHT: 6978 return (mLayout.getLineRight(0) - (mRight - mLeft) - 6979 getCompoundPaddingLeft() - getCompoundPaddingRight() - 6980 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 6981 case Gravity.CENTER_HORIZONTAL: 6982 return 0.0f; 6983 } 6984 } 6985 } 6986 return super.getLeftFadingEdgeStrength(); 6987 } 6988 6989 @Override 6990 protected float getRightFadingEdgeStrength() { 6991 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6992 if (mMarquee != null && !mMarquee.isStopped()) { 6993 final Marquee marquee = mMarquee; 6994 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 6995 } else if (getLineCount() == 1) { 6996 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 6997 case Gravity.LEFT: 6998 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 6999 getCompoundPaddingRight(); 7000 final float lineWidth = mLayout.getLineWidth(0); 7001 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 7002 case Gravity.RIGHT: 7003 return 0.0f; 7004 case Gravity.CENTER_HORIZONTAL: 7005 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 7006 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 7007 getHorizontalFadingEdgeLength(); 7008 } 7009 } 7010 } 7011 return super.getRightFadingEdgeStrength(); 7012 } 7013 7014 @Override 7015 protected int computeHorizontalScrollRange() { 7016 if (mLayout != null) { 7017 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 7018 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 7019 } 7020 7021 return super.computeHorizontalScrollRange(); 7022 } 7023 7024 @Override 7025 protected int computeVerticalScrollRange() { 7026 if (mLayout != null) 7027 return mLayout.getHeight(); 7028 7029 return super.computeVerticalScrollRange(); 7030 } 7031 7032 @Override 7033 protected int computeVerticalScrollExtent() { 7034 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 7035 } 7036 7037 public enum BufferType { 7038 NORMAL, SPANNABLE, EDITABLE, 7039 } 7040 7041 /** 7042 * Returns the TextView_textColor attribute from the 7043 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 7044 * from the TextView_textAppearance attribute, if TextView_textColor 7045 * was not set directly. 7046 */ 7047 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 7048 ColorStateList colors; 7049 colors = attrs.getColorStateList(com.android.internal.R.styleable. 7050 TextView_textColor); 7051 7052 if (colors == null) { 7053 int ap = attrs.getResourceId(com.android.internal.R.styleable. 7054 TextView_textAppearance, -1); 7055 if (ap != -1) { 7056 TypedArray appearance; 7057 appearance = context.obtainStyledAttributes(ap, 7058 com.android.internal.R.styleable.TextAppearance); 7059 colors = appearance.getColorStateList(com.android.internal.R.styleable. 7060 TextAppearance_textColor); 7061 appearance.recycle(); 7062 } 7063 } 7064 7065 return colors; 7066 } 7067 7068 /** 7069 * Returns the default color from the TextView_textColor attribute 7070 * from the AttributeSet, if set, or the default color from the 7071 * TextAppearance_textColor from the TextView_textAppearance attribute, 7072 * if TextView_textColor was not set directly. 7073 */ 7074 public static int getTextColor(Context context, 7075 TypedArray attrs, 7076 int def) { 7077 ColorStateList colors = getTextColors(context, attrs); 7078 7079 if (colors == null) { 7080 return def; 7081 } else { 7082 return colors.getDefaultColor(); 7083 } 7084 } 7085 7086 @Override 7087 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 7088 switch (keyCode) { 7089 case KeyEvent.KEYCODE_A: 7090 if (canSelectAll()) { 7091 return onTextContextMenuItem(ID_SELECT_ALL); 7092 } 7093 7094 break; 7095 7096 case KeyEvent.KEYCODE_X: 7097 if (canCut()) { 7098 return onTextContextMenuItem(ID_CUT); 7099 } 7100 7101 break; 7102 7103 case KeyEvent.KEYCODE_C: 7104 if (canCopy()) { 7105 return onTextContextMenuItem(ID_COPY); 7106 } 7107 7108 break; 7109 7110 case KeyEvent.KEYCODE_V: 7111 if (canPaste()) { 7112 return onTextContextMenuItem(ID_PASTE); 7113 } 7114 7115 break; 7116 } 7117 7118 return super.onKeyShortcut(keyCode, event); 7119 } 7120 7121 private boolean canSelectAll() { 7122 return canSelectText() && mText.length() != 0; 7123 } 7124 7125 private boolean canSelectText() { 7126 // prepareCursorController() relies on this method. 7127 // If you change this condition, make sure prepareCursorController is called anywhere 7128 // the value of this condition might be changed. 7129 return (mText instanceof Spannable && 7130 mMovement != null && 7131 mMovement.canSelectArbitrarily()); 7132 } 7133 7134 private boolean canCut() { 7135 if (mTransformation instanceof PasswordTransformationMethod) { 7136 return false; 7137 } 7138 7139 if (mText.length() > 0 && hasSelection()) { 7140 if (mText instanceof Editable && mInput != null) { 7141 return true; 7142 } 7143 } 7144 7145 return false; 7146 } 7147 7148 private boolean canCopy() { 7149 if (mTransformation instanceof PasswordTransformationMethod) { 7150 return false; 7151 } 7152 7153 if (mText.length() > 0 && hasSelection()) { 7154 return true; 7155 } 7156 7157 return false; 7158 } 7159 7160 private boolean canPaste() { 7161 return (mText instanceof Editable && 7162 mInput != null && 7163 getSelectionStart() >= 0 && 7164 getSelectionEnd() >= 0 && 7165 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 7166 hasPrimaryClip()); 7167 } 7168 7169 /** 7170 * Returns the offsets delimiting the 'word' located at position offset. 7171 * 7172 * @param offset An offset in the text. 7173 * @return The offsets for the start and end of the word located at <code>offset</code>. 7174 * The two ints offsets are packed in a long, with the starting offset shifted by 32 bits. 7175 * Returns a negative value if no valid word was found. 7176 */ 7177 private long getWordLimitsAt(int offset) { 7178 /* 7179 * Quick return if the input type is one where adding words 7180 * to the dictionary doesn't make any sense. 7181 */ 7182 int klass = mInputType & InputType.TYPE_MASK_CLASS; 7183 if (klass == InputType.TYPE_CLASS_NUMBER || 7184 klass == InputType.TYPE_CLASS_PHONE || 7185 klass == InputType.TYPE_CLASS_DATETIME) { 7186 return -1; 7187 } 7188 7189 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 7190 if (variation == InputType.TYPE_TEXT_VARIATION_URI || 7191 variation == InputType.TYPE_TEXT_VARIATION_PASSWORD || 7192 variation == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD || 7193 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 7194 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 7195 return -1; 7196 } 7197 7198 int len = mText.length(); 7199 int end = Math.min(offset, len); 7200 7201 if (end < 0) { 7202 return -1; 7203 } 7204 7205 int start = end; 7206 7207 for (; start > 0; start--) { 7208 char c = mTransformed.charAt(start - 1); 7209 int type = Character.getType(c); 7210 7211 if (c != '\'' && 7212 type != Character.UPPERCASE_LETTER && 7213 type != Character.LOWERCASE_LETTER && 7214 type != Character.TITLECASE_LETTER && 7215 type != Character.MODIFIER_LETTER && 7216 type != Character.DECIMAL_DIGIT_NUMBER) { 7217 break; 7218 } 7219 } 7220 7221 for (; end < len; end++) { 7222 char c = mTransformed.charAt(end); 7223 int type = Character.getType(c); 7224 7225 if (c != '\'' && 7226 type != Character.UPPERCASE_LETTER && 7227 type != Character.LOWERCASE_LETTER && 7228 type != Character.TITLECASE_LETTER && 7229 type != Character.MODIFIER_LETTER && 7230 type != Character.DECIMAL_DIGIT_NUMBER) { 7231 break; 7232 } 7233 } 7234 7235 if (start == end) { 7236 return -1; 7237 } 7238 7239 if (end - start > 48) { 7240 return -1; 7241 } 7242 7243 boolean hasLetter = false; 7244 for (int i = start; i < end; i++) { 7245 if (Character.isLetter(mTransformed.charAt(i))) { 7246 hasLetter = true; 7247 break; 7248 } 7249 } 7250 7251 if (!hasLetter) { 7252 return -1; 7253 } 7254 7255 // Two ints packed in a long 7256 return (((long) start) << 32) | end; 7257 } 7258 7259 private void selectCurrentWord() { 7260 // In case selection mode is started after an orientation change or after a select all, 7261 // use the current selection instead of creating one 7262 if (hasSelection()) { 7263 return; 7264 } 7265 7266 int selectionStart, selectionEnd; 7267 7268 // selectionModifierCursorController is not null at that point 7269 SelectionModifierCursorController selectionModifierCursorController = 7270 ((SelectionModifierCursorController) mSelectionModifierCursorController); 7271 int minOffset = selectionModifierCursorController.getMinTouchOffset(); 7272 int maxOffset = selectionModifierCursorController.getMaxTouchOffset(); 7273 7274 if (minOffset == maxOffset) { 7275 int offset = Math.max(0, Math.min(minOffset, mTransformed.length())); 7276 7277 // Tolerance, number of charaters around tapped position 7278 final int range = 1; 7279 final int max = mTransformed.length() - 1; 7280 7281 // 'Smart' word selection: detect position between words 7282 for (int i = -range; i <= range; i++) { 7283 int index = offset + i; 7284 if (index >= 0 && index <= max) { 7285 if (Character.isSpaceChar(mTransformed.charAt(index))) { 7286 // Select current space 7287 selectionStart = index; 7288 selectionEnd = selectionStart + 1; 7289 7290 // Extend selection to maximum space range 7291 while (selectionStart > 0 && 7292 Character.isSpaceChar(mTransformed.charAt(selectionStart - 1))) { 7293 selectionStart--; 7294 } 7295 while (selectionEnd < max && 7296 Character.isSpaceChar(mTransformed.charAt(selectionEnd))) { 7297 selectionEnd++; 7298 } 7299 7300 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 7301 return; 7302 } 7303 } 7304 } 7305 7306 // 'Smart' word selection: detect position at beginning or end of text. 7307 if (offset <= range) { 7308 Selection.setSelection((Spannable) mText, 0, 0); 7309 return; 7310 } 7311 if (offset >= (max - range)) { 7312 Selection.setSelection((Spannable) mText, max + 1, max + 1); 7313 return; 7314 } 7315 } 7316 7317 long wordLimits = getWordLimitsAt(minOffset); 7318 if (wordLimits >= 0) { 7319 selectionStart = (int) (wordLimits >>> 32); 7320 } else { 7321 selectionStart = Math.max(minOffset - 5, 0); 7322 } 7323 7324 wordLimits = getWordLimitsAt(maxOffset); 7325 if (wordLimits >= 0) { 7326 selectionEnd = (int) (wordLimits & 0x00000000FFFFFFFFL); 7327 } else { 7328 selectionEnd = Math.min(maxOffset + 5, mText.length()); 7329 } 7330 7331 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 7332 } 7333 7334 @Override 7335 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 7336 if (!isShown()) { 7337 return false; 7338 } 7339 7340 final boolean isPassword = isPasswordInputType(mInputType); 7341 7342 if (!isPassword) { 7343 CharSequence text = getText(); 7344 if (TextUtils.isEmpty(text)) { 7345 text = getHint(); 7346 } 7347 if (!TextUtils.isEmpty(text)) { 7348 if (text.length() > AccessibilityEvent.MAX_TEXT_LENGTH) { 7349 text = text.subSequence(0, AccessibilityEvent.MAX_TEXT_LENGTH + 1); 7350 } 7351 event.getText().add(text); 7352 } 7353 } else { 7354 event.setPassword(isPassword); 7355 } 7356 return false; 7357 } 7358 7359 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 7360 int fromIndex, int removedCount, int addedCount) { 7361 AccessibilityEvent event = 7362 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 7363 event.setFromIndex(fromIndex); 7364 event.setRemovedCount(removedCount); 7365 event.setAddedCount(addedCount); 7366 event.setBeforeText(beforeText); 7367 sendAccessibilityEventUnchecked(event); 7368 } 7369 7370 @Override 7371 protected void onCreateContextMenu(ContextMenu menu) { 7372 super.onCreateContextMenu(menu); 7373 boolean added = false; 7374 7375 MenuHandler handler = new MenuHandler(); 7376 7377 if (mText instanceof Spanned) { 7378 int selStart = getSelectionStart(); 7379 int selEnd = getSelectionEnd(); 7380 7381 int min = Math.min(selStart, selEnd); 7382 int max = Math.max(selStart, selEnd); 7383 7384 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, 7385 URLSpan.class); 7386 if (urls.length == 1) { 7387 menu.add(0, ID_COPY_URL, 0, 7388 com.android.internal.R.string.copyUrl). 7389 setOnMenuItemClickListener(handler); 7390 7391 added = true; 7392 } 7393 } 7394 7395 // The context menu is not empty, which will prevent the selection mode from starting. 7396 // Add a entry to start it in the context menu. 7397 // TODO Does not handle the case where a subclass does not call super.thisMethod or 7398 // populates the menu AFTER this call. 7399 if (menu.size() > 0) { 7400 menu.add(0, ID_SELECTION_MODE, 0, com.android.internal.R.string.selectTextMode). 7401 setOnMenuItemClickListener(handler); 7402 added = true; 7403 } 7404 7405 if (added) { 7406 menu.setHeaderTitle(com.android.internal.R.string.editTextMenuTitle); 7407 } 7408 } 7409 7410 /** 7411 * Returns whether this text view is a current input method target. The 7412 * default implementation just checks with {@link InputMethodManager}. 7413 */ 7414 public boolean isInputMethodTarget() { 7415 InputMethodManager imm = InputMethodManager.peekInstance(); 7416 return imm != null && imm.isActive(this); 7417 } 7418 7419 // Selection context mode 7420 private static final int ID_SELECT_ALL = android.R.id.selectAll; 7421 private static final int ID_CUT = android.R.id.cut; 7422 private static final int ID_COPY = android.R.id.copy; 7423 private static final int ID_PASTE = android.R.id.paste; 7424 // Context menu entries 7425 private static final int ID_COPY_URL = android.R.id.copyUrl; 7426 private static final int ID_SELECTION_MODE = android.R.id.selectTextMode; 7427 7428 private class MenuHandler implements MenuItem.OnMenuItemClickListener { 7429 public boolean onMenuItemClick(MenuItem item) { 7430 return onTextContextMenuItem(item.getItemId()); 7431 } 7432 } 7433 7434 /** 7435 * Called when a context menu option for the text view is selected. Currently 7436 * this will be {@link android.R.id#copyUrl} or {@link android.R.id#selectTextMode}. 7437 */ 7438 public boolean onTextContextMenuItem(int id) { 7439 int min = 0; 7440 int max = mText.length(); 7441 7442 if (isFocused()) { 7443 final int selStart = getSelectionStart(); 7444 final int selEnd = getSelectionEnd(); 7445 7446 min = Math.max(0, Math.min(selStart, selEnd)); 7447 max = Math.max(0, Math.max(selStart, selEnd)); 7448 } 7449 7450 ClipboardManager clipboard = (ClipboardManager)getContext() 7451 .getSystemService(Context.CLIPBOARD_SERVICE); 7452 7453 switch (id) { 7454 case ID_COPY_URL: 7455 7456 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, URLSpan.class); 7457 if (urls.length >= 1) { 7458 ClipData clip = null; 7459 for (int i=0; i<urls.length; i++) { 7460 Uri uri = Uri.parse(urls[0].getURL()); 7461 if (clip == null) { 7462 clip = ClipData.newRawUri(null, null, uri); 7463 } else { 7464 clip.addItem(new ClipData.Item(uri)); 7465 } 7466 } 7467 if (clip != null) { 7468 clipboard.setPrimaryClip(clip); 7469 } 7470 } 7471 return true; 7472 7473 case ID_SELECTION_MODE: 7474 startSelectionActionMode(); 7475 return true; 7476 } 7477 7478 return false; 7479 } 7480 7481 @Override 7482 public boolean performLongClick() { 7483 if (super.performLongClick()) { 7484 mEatTouchRelease = true; 7485 return true; 7486 } 7487 7488 if (startSelectionActionMode()) { 7489 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 7490 mEatTouchRelease = true; 7491 return true; 7492 } 7493 7494 return false; 7495 } 7496 7497 private boolean touchPositionIsInSelection() { 7498 int selectionStart = getSelectionStart(); 7499 int selectionEnd = getSelectionEnd(); 7500 7501 if (selectionStart == selectionEnd) { 7502 return false; 7503 } 7504 7505 if (selectionStart > selectionEnd) { 7506 int tmp = selectionStart; 7507 selectionStart = selectionEnd; 7508 selectionEnd = tmp; 7509 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 7510 } 7511 7512 SelectionModifierCursorController selectionModifierCursorController = 7513 ((SelectionModifierCursorController) mSelectionModifierCursorController); 7514 int minOffset = selectionModifierCursorController.getMinTouchOffset(); 7515 int maxOffset = selectionModifierCursorController.getMaxTouchOffset(); 7516 7517 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 7518 } 7519 7520 /** 7521 * Provides the callback used to start a selection action mode. 7522 * 7523 * @return A callback instance that will be used to start selection mode, or null if selection 7524 * mode is not available. 7525 */ 7526 private ActionMode.Callback getActionModeCallback() { 7527 // Long press in the current selection. 7528 // Should initiate a drag. Return false, to rely on context menu for now. 7529 if (canSelectText() && !touchPositionIsInSelection()) { 7530 return new SelectionActionModeCallback(); 7531 } 7532 return null; 7533 } 7534 7535 /** 7536 * 7537 * @return true if the selection mode was actually started. 7538 */ 7539 private boolean startSelectionActionMode() { 7540 if (mSelectionActionMode != null) { 7541 // Selection action mode is already started 7542 return false; 7543 } 7544 7545 ActionMode.Callback actionModeCallback = getActionModeCallback(); 7546 if (actionModeCallback != null) { 7547 mSelectionActionMode = startActionMode(actionModeCallback); 7548 return mSelectionActionMode != null; 7549 } 7550 7551 return false; 7552 } 7553 7554 /** 7555 * Same as {@link #stopSelectionActionMode()}, except that there is no cursor controller 7556 * fade out animation. Needed since the drawable and their alpha values are shared by all 7557 * TextViews. Switching from one TextView to another would fade the cursor controllers in the 7558 * new one otherwise. 7559 */ 7560 private void terminateSelectionActionMode() { 7561 stopSelectionActionMode(); 7562 if (mSelectionModifierCursorController != null) { 7563 SelectionModifierCursorController selectionModifierCursorController = 7564 (SelectionModifierCursorController) mSelectionModifierCursorController; 7565 selectionModifierCursorController.cancelFadeOutAnimation(); 7566 } 7567 } 7568 7569 private void stopSelectionActionMode() { 7570 if (mSelectionActionMode != null) { 7571 mSelectionActionMode.finish(); 7572 } 7573 } 7574 7575 private class SelectionActionModeCallback implements ActionMode.Callback { 7576 7577 @Override 7578 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 7579 if (mSelectionModifierCursorController == null) { 7580 Log.w(LOG_TAG, "TextView has no selection controller. Action mode cancelled."); 7581 return false; 7582 } 7583 7584 if (!requestFocus()) { 7585 return false; 7586 } 7587 7588 mode.setTitle(mContext.getString(com.android.internal.R.string.textSelectionCABTitle)); 7589 mode.setSubtitle(null); 7590 7591 selectCurrentWord(); 7592 7593 boolean atLeastOne = false; 7594 7595 if (canSelectAll()) { 7596 menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 7597 setIcon(com.android.internal.R.drawable.ic_menu_select_all). 7598 setAlphabeticShortcut('a'); 7599 atLeastOne = true; 7600 } 7601 7602 if (canCut()) { 7603 menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut). 7604 setIcon(com.android.internal.R.drawable.ic_menu_cut). 7605 setAlphabeticShortcut('x'); 7606 atLeastOne = true; 7607 } 7608 7609 if (canCopy()) { 7610 menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy). 7611 setIcon(com.android.internal.R.drawable.ic_menu_copy). 7612 setAlphabeticShortcut('c'); 7613 atLeastOne = true; 7614 } 7615 7616 if (canPaste()) { 7617 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 7618 setIcon(com.android.internal.R.drawable.ic_menu_paste). 7619 setAlphabeticShortcut('v'); 7620 atLeastOne = true; 7621 } 7622 7623 if (atLeastOne) { 7624 mSelectionModifierCursorController.show(); 7625 return true; 7626 } else { 7627 return false; 7628 } 7629 } 7630 7631 @Override 7632 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 7633 return true; 7634 } 7635 7636 @Override 7637 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 7638 final int itemId = item.getItemId(); 7639 7640 if (itemId == ID_SELECT_ALL) { 7641 Selection.setSelection((Spannable) mText, 0, mText.length()); 7642 // Update controller positions after selection change. 7643 if (mSelectionModifierCursorController != null) { 7644 mSelectionModifierCursorController.show(); 7645 } 7646 return true; 7647 } 7648 7649 ClipboardManager clipboard = (ClipboardManager) getContext(). 7650 getSystemService(Context.CLIPBOARD_SERVICE); 7651 7652 int min = 0; 7653 int max = mText.length(); 7654 7655 if (isFocused()) { 7656 final int selStart = getSelectionStart(); 7657 final int selEnd = getSelectionEnd(); 7658 7659 min = Math.max(0, Math.min(selStart, selEnd)); 7660 max = Math.max(0, Math.max(selStart, selEnd)); 7661 } 7662 7663 switch (item.getItemId()) { 7664 case ID_PASTE: 7665 ClipData clip = clipboard.getPrimaryClip(); 7666 if (clip != null) { 7667 boolean didfirst = false; 7668 for (int i=0; i<clip.getItemCount(); i++) { 7669 CharSequence paste = clip.getItem(i).coerceToText(getContext()); 7670 if (paste != null) { 7671 if (!didfirst) { 7672 Selection.setSelection((Spannable) mText, max); 7673 ((Editable) mText).replace(min, max, paste); 7674 } else { 7675 ((Editable) mText).insert(getSelectionEnd(), "\n"); 7676 ((Editable) mText).insert(getSelectionEnd(), paste); 7677 } 7678 } 7679 } 7680 stopSelectionActionMode(); 7681 } 7682 7683 return true; 7684 7685 case ID_CUT: 7686 clipboard.setPrimaryClip(ClipData.newPlainText(null, null, 7687 mTransformed.subSequence(min, max))); 7688 ((Editable) mText).delete(min, max); 7689 stopSelectionActionMode(); 7690 return true; 7691 7692 case ID_COPY: 7693 clipboard.setPrimaryClip(ClipData.newPlainText(null, null, 7694 mTransformed.subSequence(min, max))); 7695 stopSelectionActionMode(); 7696 return true; 7697 } 7698 7699 return false; 7700 } 7701 7702 @Override 7703 public void onDestroyActionMode(ActionMode mode) { 7704 Selection.setSelection((Spannable) mText, getSelectionStart()); 7705 if (mSelectionModifierCursorController != null) { 7706 mSelectionModifierCursorController.hide(); 7707 } 7708 mSelectionActionMode = null; 7709 } 7710 } 7711 7712 /** 7713 * A CursorController instance can be used to control a cursor in the text. 7714 * It is not used outside of {@link TextView}. 7715 * @hide 7716 */ 7717 private interface CursorController { 7718 /** 7719 * Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}. 7720 * See also {@link #hide()}. 7721 */ 7722 public void show(); 7723 7724 /** 7725 * Hide the cursor controller from screen. 7726 * See also {@link #show()}. 7727 */ 7728 public void hide(); 7729 7730 /** 7731 * @return true if the CursorController is currently visible 7732 */ 7733 public boolean isShowing(); 7734 7735 /** 7736 * Update the controller's position. 7737 */ 7738 public void updatePosition(HandleView handle, int x, int y); 7739 7740 public void updatePosition(); 7741 7742 /** 7743 * This method is called by {@link #onTouchEvent(MotionEvent)} and gives the controller 7744 * a chance to become active and/or visible. 7745 * @param event The touch event 7746 */ 7747 public boolean onTouchEvent(MotionEvent event); 7748 } 7749 7750 private class HandleView extends View { 7751 private boolean mPositionOnTop = false; 7752 private Drawable mDrawable; 7753 private PopupWindow mContainer; 7754 private int mPositionX; 7755 private int mPositionY; 7756 private CursorController mController; 7757 private boolean mIsDragging; 7758 private float mOffsetX; 7759 private float mOffsetY; 7760 private float mHotspotX; 7761 private float mHotspotY; 7762 7763 public HandleView(CursorController controller, Drawable handle) { 7764 super(TextView.this.mContext); 7765 mController = controller; 7766 mDrawable = handle; 7767 mContainer = new PopupWindow(TextView.this.mContext, null, 7768 com.android.internal.R.attr.textSelectHandleWindowStyle); 7769 mContainer.setSplitTouchEnabled(true); 7770 mContainer.setClippingEnabled(false); 7771 mHotspotX = mDrawable.getIntrinsicWidth() * 0.5f; 7772 mHotspotY = -mDrawable.getIntrinsicHeight() * 0.2f; 7773 } 7774 7775 @Override 7776 public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 7777 setMeasuredDimension(mDrawable.getIntrinsicWidth(), 7778 mDrawable.getIntrinsicHeight()); 7779 } 7780 7781 public void show() { 7782 if (!isPositionInBounds()) { 7783 hide(); 7784 return; 7785 } 7786 mContainer.setContentView(this); 7787 final int[] coords = mTempCoords; 7788 TextView.this.getLocationInWindow(coords); 7789 coords[0] += mPositionX; 7790 coords[1] += mPositionY; 7791 mContainer.showAtLocation(TextView.this, 0, coords[0], coords[1]); 7792 } 7793 7794 public void hide() { 7795 mIsDragging = false; 7796 mContainer.dismiss(); 7797 } 7798 7799 public boolean isShowing() { 7800 return mContainer.isShowing(); 7801 } 7802 7803 private boolean isPositionInBounds() { 7804 final int extendedPaddingTop = getExtendedPaddingTop(); 7805 final int extendedPaddingBottom = getExtendedPaddingBottom(); 7806 final int compoundPaddingLeft = getCompoundPaddingLeft(); 7807 final int compoundPaddingRight = getCompoundPaddingRight(); 7808 7809 final TextView hostView = TextView.this; 7810 final int handleWidth = mDrawable.getIntrinsicWidth(); 7811 final int left = 0; 7812 final int right = hostView.getWidth(); 7813 final int top = 0; 7814 final int bottom = hostView.getHeight(); 7815 7816 final int clipLeft = left + compoundPaddingLeft - (int) (handleWidth * 0.75f); 7817 final int clipTop = top + extendedPaddingTop; 7818 final int clipRight = right - compoundPaddingRight + (int) (handleWidth * 0.25f); 7819 final int clipBottom = bottom - extendedPaddingBottom; 7820 7821 return mPositionX >= clipLeft && mPositionX <= clipRight && 7822 mPositionY >= clipTop && mPositionY <= clipBottom; 7823 } 7824 7825 private void moveTo(int x, int y) { 7826 mPositionX = x - TextView.this.mScrollX; 7827 mPositionY = y - TextView.this.mScrollY; 7828 if (isPositionInBounds()) { 7829 if (mContainer.isShowing()){ 7830 final int[] coords = mTempCoords; 7831 TextView.this.getLocationInWindow(coords); 7832 coords[0] += mPositionX; 7833 coords[1] += mPositionY; 7834 mContainer.update(coords[0], coords[1], mRight - mLeft, mBottom - mTop); 7835 } else { 7836 show(); 7837 } 7838 } else { 7839 hide(); 7840 } 7841 } 7842 7843 @Override 7844 public void onDraw(Canvas c) { 7845 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 7846 if (mPositionOnTop) { 7847 c.save(); 7848 c.rotate(180, (mRight - mLeft) / 2, (mBottom - mTop) / 2); 7849 mDrawable.draw(c); 7850 c.restore(); 7851 } else { 7852 mDrawable.draw(c); 7853 } 7854 } 7855 7856 @Override 7857 public boolean onTouchEvent(MotionEvent ev) { 7858 switch (ev.getActionMasked()) { 7859 case MotionEvent.ACTION_DOWN: { 7860 final float rawX = ev.getRawX(); 7861 final float rawY = ev.getRawY(); 7862 mOffsetX = rawX - mPositionX; 7863 mOffsetY = rawY - mPositionY; 7864 mIsDragging = true; 7865 break; 7866 } 7867 case MotionEvent.ACTION_MOVE: { 7868 final float rawX = ev.getRawX(); 7869 final float rawY = ev.getRawY(); 7870 final float newPosX = rawX - mOffsetX + mHotspotX; 7871 final float newPosY = rawY - mOffsetY + mHotspotY; 7872 7873 mController.updatePosition(this, (int) Math.round(newPosX), 7874 (int) Math.round(newPosY)); 7875 7876 break; 7877 } 7878 case MotionEvent.ACTION_UP: 7879 case MotionEvent.ACTION_CANCEL: 7880 mIsDragging = false; 7881 } 7882 return true; 7883 } 7884 7885 public boolean isDragging() { 7886 return mIsDragging; 7887 } 7888 7889 void positionAtCursor(final int offset, boolean bottom) { 7890 final int width = mDrawable.getIntrinsicWidth(); 7891 final int height = mDrawable.getIntrinsicHeight(); 7892 final int line = mLayout.getLineForOffset(offset); 7893 final int lineTop = mLayout.getLineTop(line); 7894 final int lineBottom = mLayout.getLineBottom(line); 7895 7896 final Rect bounds = sCursorControllerTempRect; 7897 bounds.left = (int) (mLayout.getPrimaryHorizontal(offset) - width / 2.0) 7898 + TextView.this.mScrollX; 7899 bounds.top = (bottom ? lineBottom : lineTop) + TextView.this.mScrollY; 7900 7901 bounds.right = bounds.left + width; 7902 bounds.bottom = bounds.top + height; 7903 7904 convertFromViewportToContentCoordinates(bounds); 7905 moveTo(bounds.left, bounds.top); 7906 } 7907 } 7908 7909 private class InsertionPointCursorController implements CursorController { 7910 private static final int DELAY_BEFORE_FADE_OUT = 4100; 7911 7912 // The cursor controller image 7913 private final HandleView mHandle; 7914 7915 private final Runnable mHider = new Runnable() { 7916 public void run() { 7917 hide(); 7918 } 7919 }; 7920 7921 InsertionPointCursorController() { 7922 Resources res = mContext.getResources(); 7923 mHandle = new HandleView(this, res.getDrawable(mTextSelectHandleRes)); 7924 } 7925 7926 public void show() { 7927 updatePosition(); 7928 mHandle.show(); 7929 hideDelayed(DELAY_BEFORE_FADE_OUT); 7930 } 7931 7932 public void hide() { 7933 mHandle.hide(); 7934 TextView.this.removeCallbacks(mHider); 7935 } 7936 7937 private void hideDelayed(int msec) { 7938 TextView.this.removeCallbacks(mHider); 7939 TextView.this.postDelayed(mHider, msec); 7940 } 7941 7942 public boolean isShowing() { 7943 return mHandle.isShowing(); 7944 } 7945 7946 public void updatePosition(HandleView handle, int x, int y) { 7947 final int previousOffset = getSelectionStart(); 7948 int offset = getHysteresisOffset(x, y, previousOffset); 7949 7950 if (offset != previousOffset) { 7951 Selection.setSelection((Spannable) mText, offset); 7952 updatePosition(); 7953 } 7954 hideDelayed(DELAY_BEFORE_FADE_OUT); 7955 } 7956 7957 public void updatePosition() { 7958 final int offset = getSelectionStart(); 7959 7960 if (offset < 0) { 7961 // Should never happen, safety check. 7962 Log.w(LOG_TAG, "Update cursor controller position called with no cursor"); 7963 hide(); 7964 return; 7965 } 7966 7967 mHandle.positionAtCursor(offset, true); 7968 } 7969 7970 public boolean onTouchEvent(MotionEvent ev) { 7971 return false; 7972 } 7973 } 7974 7975 private class SelectionModifierCursorController implements CursorController { 7976 // The cursor controller images 7977 private HandleView mStartHandle, mEndHandle; 7978 // The offsets of that last touch down event. Remembered to start selection there. 7979 private int mMinTouchOffset, mMaxTouchOffset; 7980 // Whether selection anchors are active 7981 private boolean mIsShowing; 7982 7983 SelectionModifierCursorController() { 7984 Resources res = mContext.getResources(); 7985 mStartHandle = new HandleView(this, res.getDrawable(mTextSelectHandleLeftRes)); 7986 mEndHandle = new HandleView(this, res.getDrawable(mTextSelectHandleRightRes)); 7987 } 7988 7989 public void show() { 7990 mIsShowing = true; 7991 updatePosition(); 7992 mStartHandle.show(); 7993 mEndHandle.show(); 7994 hideInsertionPointCursorController(); 7995 } 7996 7997 public void hide() { 7998 mStartHandle.hide(); 7999 mEndHandle.hide(); 8000 mIsShowing = false; 8001 } 8002 8003 public boolean isShowing() { 8004 return mIsShowing; 8005 } 8006 8007 public void cancelFadeOutAnimation() { 8008 hide(); 8009 } 8010 8011 public void updatePosition(HandleView handle, int x, int y) { 8012 int selectionStart = getSelectionStart(); 8013 int selectionEnd = getSelectionEnd(); 8014 8015 final int previousOffset = handle == mStartHandle ? selectionStart : selectionEnd; 8016 int offset = getHysteresisOffset(x, y, previousOffset); 8017 8018 // Handle the case where start and end are swapped, making sure start <= end 8019 if (handle == mStartHandle) { 8020 if (offset <= selectionEnd) { 8021 if (selectionStart == offset) { 8022 return; // no change, no need to redraw; 8023 } 8024 selectionStart = offset; 8025 } else { 8026 selectionStart = selectionEnd; 8027 selectionEnd = offset; 8028 HandleView temp = mStartHandle; 8029 mStartHandle = mEndHandle; 8030 mEndHandle = temp; 8031 } 8032 } else { 8033 if (offset >= selectionStart) { 8034 if (selectionEnd == offset) { 8035 return; // no change, no need to redraw; 8036 } 8037 selectionEnd = offset; 8038 } else { 8039 selectionEnd = selectionStart; 8040 selectionStart = offset; 8041 HandleView temp = mStartHandle; 8042 mStartHandle = mEndHandle; 8043 mEndHandle = temp; 8044 } 8045 } 8046 8047 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8048 updatePosition(); 8049 } 8050 8051 public void updatePosition() { 8052 final int selectionStart = getSelectionStart(); 8053 final int selectionEnd = getSelectionEnd(); 8054 8055 if ((selectionStart < 0) || (selectionEnd < 0)) { 8056 // Should never happen, safety check. 8057 Log.w(LOG_TAG, "Update selection controller position called with no cursor"); 8058 hide(); 8059 return; 8060 } 8061 8062 boolean oneLineSelection = mLayout.getLineForOffset(selectionStart) == 8063 mLayout.getLineForOffset(selectionEnd); 8064 mStartHandle.positionAtCursor(selectionStart, oneLineSelection); 8065 mEndHandle.positionAtCursor(selectionEnd, true); 8066 } 8067 8068 public boolean onTouchEvent(MotionEvent event) { 8069 if (isFocused() && isTextEditable()) { 8070 switch (event.getActionMasked()) { 8071 case MotionEvent.ACTION_DOWN: 8072 final int x = (int) event.getX(); 8073 final int y = (int) event.getY(); 8074 8075 // Remember finger down position, to be able to start selection from there 8076 mMinTouchOffset = mMaxTouchOffset = mLastTouchOffset = getOffset(x, y); 8077 8078 break; 8079 8080 case MotionEvent.ACTION_POINTER_DOWN: 8081 case MotionEvent.ACTION_POINTER_UP: 8082 // Handle multi-point gestures. Keep min and max offset positions. 8083 // Only activated for devices that correctly handle multi-touch. 8084 if (mContext.getPackageManager().hasSystemFeature( 8085 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 8086 updateMinAndMaxOffsets(event); 8087 } 8088 break; 8089 } 8090 } 8091 return false; 8092 } 8093 8094 /** 8095 * @param event 8096 */ 8097 private void updateMinAndMaxOffsets(MotionEvent event) { 8098 int pointerCount = event.getPointerCount(); 8099 for (int index = 0; index < pointerCount; index++) { 8100 final int x = (int) event.getX(index); 8101 final int y = (int) event.getY(index); 8102 int offset = getOffset(x, y); 8103 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 8104 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 8105 } 8106 } 8107 8108 public int getMinTouchOffset() { 8109 return mMinTouchOffset; 8110 } 8111 8112 public int getMaxTouchOffset() { 8113 return mMaxTouchOffset; 8114 } 8115 8116 /** 8117 * @return true iff this controller is currently used to move the selection start. 8118 */ 8119 public boolean isSelectionStartDragged() { 8120 return mStartHandle.isDragging(); 8121 } 8122 } 8123 8124 private void hideInsertionPointCursorController() { 8125 if (mInsertionPointCursorController != null) { 8126 mInsertionPointCursorController.hide(); 8127 } 8128 } 8129 8130 private void hideControllers() { 8131 hideInsertionPointCursorController(); 8132 stopSelectionActionMode(); 8133 } 8134 8135 private int getOffsetForHorizontal(int line, int x) { 8136 x -= getTotalPaddingLeft(); 8137 // Clamp the position to inside of the view. 8138 x = Math.max(0, x); 8139 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 8140 x += getScrollX(); 8141 return getLayout().getOffsetForHorizontal(line, x); 8142 } 8143 8144 /** 8145 * Get the offset character closest to the specified absolute position. 8146 * 8147 * @param x The horizontal absolute position of a point on screen 8148 * @param y The vertical absolute position of a point on screen 8149 * @return the character offset for the character whose position is closest to the specified 8150 * position. Returns -1 if there is no layout. 8151 * 8152 * @hide 8153 */ 8154 public int getOffset(int x, int y) { 8155 if (getLayout() == null) return -1; 8156 8157 y -= getTotalPaddingTop(); 8158 // Clamp the position to inside of the view. 8159 y = Math.max(0, y); 8160 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 8161 y += getScrollY(); 8162 8163 final int line = getLayout().getLineForVertical(y); 8164 final int offset = getOffsetForHorizontal(line, x); 8165 return offset; 8166 } 8167 8168 int getHysteresisOffset(int x, int y, int previousOffset) { 8169 final Layout layout = getLayout(); 8170 if (layout == null) return -1; 8171 8172 y -= getTotalPaddingTop(); 8173 // Clamp the position to inside of the view. 8174 y = Math.max(0, y); 8175 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 8176 y += getScrollY(); 8177 8178 int line = getLayout().getLineForVertical(y); 8179 8180 final int previousLine = layout.getLineForOffset(previousOffset); 8181 final int previousLineTop = layout.getLineTop(previousLine); 8182 final int previousLineBottom = layout.getLineBottom(previousLine); 8183 final int hysteresisThreshold = (previousLineBottom - previousLineTop) / 6; 8184 8185 // If new line is just before or after previous line and y position is less than 8186 // hysteresisThreshold away from previous line, keep cursor on previous line. 8187 if (((line == previousLine + 1) && ((y - previousLineBottom) < hysteresisThreshold)) || 8188 ((line == previousLine - 1) && ((previousLineTop - y) < hysteresisThreshold))) { 8189 line = previousLine; 8190 } 8191 8192 return getOffsetForHorizontal(line, x); 8193 } 8194 8195 8196 @ViewDebug.ExportedProperty(category = "text") 8197 private CharSequence mText; 8198 private CharSequence mTransformed; 8199 private BufferType mBufferType = BufferType.NORMAL; 8200 8201 private int mInputType = EditorInfo.TYPE_NULL; 8202 private CharSequence mHint; 8203 private Layout mHintLayout; 8204 8205 private KeyListener mInput; 8206 8207 private MovementMethod mMovement; 8208 private TransformationMethod mTransformation; 8209 private ChangeWatcher mChangeWatcher; 8210 8211 private ArrayList<TextWatcher> mListeners = null; 8212 8213 // display attributes 8214 private final TextPaint mTextPaint; 8215 private boolean mUserSetTextScaleX; 8216 private final Paint mHighlightPaint; 8217 private int mHighlightColor = 0xCC475925; 8218 private Layout mLayout; 8219 8220 private long mShowCursor; 8221 private Blink mBlink; 8222 private boolean mCursorVisible = true; 8223 8224 // Cursor Controllers. Null when disabled. 8225 private CursorController mInsertionPointCursorController; 8226 private CursorController mSelectionModifierCursorController; 8227 private ActionMode mSelectionActionMode; 8228 private int mLastTouchOffset = -1; 8229 // Created once and shared by different CursorController helper methods. 8230 // Only one cursor controller is active at any time which prevent race conditions. 8231 private static Rect sCursorControllerTempRect = new Rect(); 8232 8233 private boolean mSelectAllOnFocus = false; 8234 8235 private int mGravity = Gravity.TOP | Gravity.LEFT; 8236 private boolean mHorizontallyScrolling; 8237 8238 private int mAutoLinkMask; 8239 private boolean mLinksClickable = true; 8240 8241 private float mSpacingMult = 1; 8242 private float mSpacingAdd = 0; 8243 8244 private static final int LINES = 1; 8245 private static final int EMS = LINES; 8246 private static final int PIXELS = 2; 8247 8248 private int mMaximum = Integer.MAX_VALUE; 8249 private int mMaxMode = LINES; 8250 private int mMinimum = 0; 8251 private int mMinMode = LINES; 8252 8253 private int mMaxWidth = Integer.MAX_VALUE; 8254 private int mMaxWidthMode = PIXELS; 8255 private int mMinWidth = 0; 8256 private int mMinWidthMode = PIXELS; 8257 8258 private boolean mSingleLine; 8259 private int mDesiredHeightAtMeasure = -1; 8260 private boolean mIncludePad = true; 8261 8262 // tmp primitives, so we don't alloc them on each draw 8263 private Path mHighlightPath; 8264 private boolean mHighlightPathBogus = true; 8265 private static final RectF sTempRect = new RectF(); 8266 8267 // XXX should be much larger 8268 private static final int VERY_WIDE = 16384; 8269 8270 private static final int BLINK = 500; 8271 8272 private static final int ANIMATED_SCROLL_GAP = 250; 8273 private long mLastScroll; 8274 private Scroller mScroller = null; 8275 8276 private BoringLayout.Metrics mBoring; 8277 private BoringLayout.Metrics mHintBoring; 8278 8279 private BoringLayout mSavedLayout, mSavedHintLayout; 8280 8281 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 8282 private InputFilter[] mFilters = NO_FILTERS; 8283 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 8284} 8285