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 17 package android.widget; 18 19 import com.android.internal.util.FastMath; 20 import com.android.internal.widget.EditableInputConnection; 21 22 import org.xmlpull.v1.XmlPullParserException; 23 24 import android.content.Context; 25 import android.content.Intent; 26 import android.content.res.ColorStateList; 27 import android.content.res.Resources; 28 import android.content.res.TypedArray; 29 import android.content.res.XmlResourceParser; 30 import android.graphics.Canvas; 31 import android.graphics.Paint; 32 import android.graphics.Path; 33 import android.graphics.Rect; 34 import android.graphics.RectF; 35 import android.graphics.Typeface; 36 import android.graphics.drawable.Drawable; 37 import android.os.Bundle; 38 import android.os.Handler; 39 import android.os.Message; 40 import android.os.Parcel; 41 import android.os.Parcelable; 42 import android.os.ResultReceiver; 43 import android.os.SystemClock; 44 import android.text.BoringLayout; 45 import android.text.ClipboardManager; 46 import android.text.DynamicLayout; 47 import android.text.Editable; 48 import android.text.GetChars; 49 import android.text.GraphicsOperations; 50 import android.text.InputFilter; 51 import android.text.InputType; 52 import android.text.Layout; 53 import android.text.ParcelableSpan; 54 import android.text.Selection; 55 import android.text.SpanWatcher; 56 import android.text.Spannable; 57 import android.text.SpannableString; 58 import android.text.Spanned; 59 import android.text.SpannedString; 60 import android.text.StaticLayout; 61 import android.text.TextPaint; 62 import android.text.TextUtils; 63 import android.text.TextWatcher; 64 import android.text.method.DateKeyListener; 65 import android.text.method.DateTimeKeyListener; 66 import android.text.method.DialerKeyListener; 67 import android.text.method.DigitsKeyListener; 68 import android.text.method.KeyListener; 69 import android.text.method.LinkMovementMethod; 70 import android.text.method.MetaKeyKeyListener; 71 import android.text.method.MovementMethod; 72 import android.text.method.PasswordTransformationMethod; 73 import android.text.method.SingleLineTransformationMethod; 74 import android.text.method.TextKeyListener; 75 import android.text.method.TimeKeyListener; 76 import android.text.method.TransformationMethod; 77 import android.text.style.ParagraphStyle; 78 import android.text.style.URLSpan; 79 import android.text.style.UpdateAppearance; 80 import android.text.util.Linkify; 81 import android.util.AttributeSet; 82 import android.util.FloatMath; 83 import android.util.Log; 84 import android.util.TypedValue; 85 import android.view.ContextMenu; 86 import android.view.Gravity; 87 import android.view.KeyEvent; 88 import android.view.LayoutInflater; 89 import android.view.MenuItem; 90 import android.view.MotionEvent; 91 import android.view.View; 92 import android.view.ViewDebug; 93 import android.view.ViewRoot; 94 import android.view.ViewTreeObserver; 95 import android.view.ViewGroup.LayoutParams; 96 import android.view.accessibility.AccessibilityEvent; 97 import android.view.accessibility.AccessibilityManager; 98 import android.view.animation.AnimationUtils; 99 import android.view.inputmethod.BaseInputConnection; 100 import android.view.inputmethod.CompletionInfo; 101 import android.view.inputmethod.EditorInfo; 102 import android.view.inputmethod.ExtractedText; 103 import android.view.inputmethod.ExtractedTextRequest; 104 import android.view.inputmethod.InputConnection; 105 import android.view.inputmethod.InputMethodManager; 106 import android.widget.RemoteViews.RemoteView; 107 108 import java.io.IOException; 109 import java.lang.ref.WeakReference; 110 import java.util.ArrayList; 111 112 /** 113 * Displays text to the user and optionally allows them to edit it. A TextView 114 * is a complete text editor, however the basic class is configured to not 115 * allow editing; see {@link EditText} for a subclass that configures the text 116 * view for editing. 117 * 118 * <p> 119 * <b>XML attributes</b> 120 * <p> 121 * See {@link android.R.styleable#TextView TextView Attributes}, 122 * {@link android.R.styleable#View View Attributes} 123 * 124 * @attr ref android.R.styleable#TextView_text 125 * @attr ref android.R.styleable#TextView_bufferType 126 * @attr ref android.R.styleable#TextView_hint 127 * @attr ref android.R.styleable#TextView_textColor 128 * @attr ref android.R.styleable#TextView_textColorHighlight 129 * @attr ref android.R.styleable#TextView_textColorHint 130 * @attr ref android.R.styleable#TextView_textAppearance 131 * @attr ref android.R.styleable#TextView_textColorLink 132 * @attr ref android.R.styleable#TextView_textSize 133 * @attr ref android.R.styleable#TextView_textScaleX 134 * @attr ref android.R.styleable#TextView_typeface 135 * @attr ref android.R.styleable#TextView_textStyle 136 * @attr ref android.R.styleable#TextView_cursorVisible 137 * @attr ref android.R.styleable#TextView_maxLines 138 * @attr ref android.R.styleable#TextView_maxHeight 139 * @attr ref android.R.styleable#TextView_lines 140 * @attr ref android.R.styleable#TextView_height 141 * @attr ref android.R.styleable#TextView_minLines 142 * @attr ref android.R.styleable#TextView_minHeight 143 * @attr ref android.R.styleable#TextView_maxEms 144 * @attr ref android.R.styleable#TextView_maxWidth 145 * @attr ref android.R.styleable#TextView_ems 146 * @attr ref android.R.styleable#TextView_width 147 * @attr ref android.R.styleable#TextView_minEms 148 * @attr ref android.R.styleable#TextView_minWidth 149 * @attr ref android.R.styleable#TextView_gravity 150 * @attr ref android.R.styleable#TextView_scrollHorizontally 151 * @attr ref android.R.styleable#TextView_password 152 * @attr ref android.R.styleable#TextView_singleLine 153 * @attr ref android.R.styleable#TextView_selectAllOnFocus 154 * @attr ref android.R.styleable#TextView_includeFontPadding 155 * @attr ref android.R.styleable#TextView_maxLength 156 * @attr ref android.R.styleable#TextView_shadowColor 157 * @attr ref android.R.styleable#TextView_shadowDx 158 * @attr ref android.R.styleable#TextView_shadowDy 159 * @attr ref android.R.styleable#TextView_shadowRadius 160 * @attr ref android.R.styleable#TextView_autoLink 161 * @attr ref android.R.styleable#TextView_linksClickable 162 * @attr ref android.R.styleable#TextView_numeric 163 * @attr ref android.R.styleable#TextView_digits 164 * @attr ref android.R.styleable#TextView_phoneNumber 165 * @attr ref android.R.styleable#TextView_inputMethod 166 * @attr ref android.R.styleable#TextView_capitalize 167 * @attr ref android.R.styleable#TextView_autoText 168 * @attr ref android.R.styleable#TextView_editable 169 * @attr ref android.R.styleable#TextView_freezesText 170 * @attr ref android.R.styleable#TextView_ellipsize 171 * @attr ref android.R.styleable#TextView_drawableTop 172 * @attr ref android.R.styleable#TextView_drawableBottom 173 * @attr ref android.R.styleable#TextView_drawableRight 174 * @attr ref android.R.styleable#TextView_drawableLeft 175 * @attr ref android.R.styleable#TextView_drawablePadding 176 * @attr ref android.R.styleable#TextView_lineSpacingExtra 177 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 178 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 179 * @attr ref android.R.styleable#TextView_inputType 180 * @attr ref android.R.styleable#TextView_imeOptions 181 * @attr ref android.R.styleable#TextView_privateImeOptions 182 * @attr ref android.R.styleable#TextView_imeActionLabel 183 * @attr ref android.R.styleable#TextView_imeActionId 184 * @attr ref android.R.styleable#TextView_editorExtras 185 */ 186 @RemoteView 187 public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 188 static final String TAG = "TextView"; 189 static final boolean DEBUG_EXTRACT = false; 190 191 private static int PRIORITY = 100; 192 193 private ColorStateList mTextColor; 194 private int mCurTextColor; 195 private ColorStateList mHintTextColor; 196 private ColorStateList mLinkTextColor; 197 private int mCurHintTextColor; 198 private boolean mFreezesText; 199 private boolean mFrozenWithFocus; 200 private boolean mTemporaryDetach; 201 private boolean mDispatchTemporaryDetach; 202 203 private boolean mEatTouchRelease = false; 204 private boolean mScrolled = false; 205 206 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 207 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 208 209 private float mShadowRadius, mShadowDx, mShadowDy; 210 211 private static final int PREDRAW_NOT_REGISTERED = 0; 212 private static final int PREDRAW_PENDING = 1; 213 private static final int PREDRAW_DONE = 2; 214 private int mPreDrawState = PREDRAW_NOT_REGISTERED; 215 216 private TextUtils.TruncateAt mEllipsize = null; 217 218 // Enum for the "typeface" XML parameter. 219 // TODO: How can we get this from the XML instead of hardcoding it here? 220 private static final int SANS = 1; 221 private static final int SERIF = 2; 222 private static final int MONOSPACE = 3; 223 224 // Bitfield for the "numeric" XML parameter. 225 // TODO: How can we get this from the XML instead of hardcoding it here? 226 private static final int SIGNED = 2; 227 private static final int DECIMAL = 4; 228 229 class Drawables { 230 final Rect mCompoundRect = new Rect(); 231 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight; 232 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight; 233 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight; 234 int mDrawablePadding; 235 } 236 private Drawables mDrawables; 237 238 private CharSequence mError; 239 private boolean mErrorWasChanged; 240 private ErrorPopup mPopup; 241 /** 242 * This flag is set if the TextView tries to display an error before it 243 * is attached to the window (so its position is still unknown). 244 * It causes the error to be shown later, when onAttachedToWindow() 245 * is called. 246 */ 247 private boolean mShowErrorAfterAttach; 248 249 private CharWrapper mCharWrapper = null; 250 251 private boolean mSelectionMoved = false; 252 private boolean mTouchFocusSelected = false; 253 254 private Marquee mMarquee; 255 private boolean mRestartMarquee; 256 257 private int mMarqueeRepeatLimit = 3; 258 259 class InputContentType { 260 int imeOptions = EditorInfo.IME_NULL; 261 String privateImeOptions; 262 CharSequence imeActionLabel; 263 int imeActionId; 264 Bundle extras; 265 OnEditorActionListener onEditorActionListener; 266 boolean enterDown; 267 } 268 InputContentType mInputContentType; 269 270 class InputMethodState { 271 Rect mCursorRectInWindow = new Rect(); 272 RectF mTmpRectF = new RectF(); 273 float[] mTmpOffset = new float[2]; 274 ExtractedTextRequest mExtracting; 275 final ExtractedText mTmpExtracted = new ExtractedText(); 276 int mBatchEditNesting; 277 boolean mCursorChanged; 278 boolean mSelectionModeChanged; 279 boolean mContentChanged; 280 int mChangedStart, mChangedEnd, mChangedDelta; 281 } 282 InputMethodState mInputMethodState; 283 284 /* 285 * Kick-start the font cache for the zygote process (to pay the cost of 286 * initializing freetype for our default font only once). 287 */ 288 static { 289 Paint p = new Paint(); 290 p.setAntiAlias(true); 291 // We don't care about the result, just the side-effect of measuring. 292 p.measureText("H"); 293 } 294 295 /** 296 * Interface definition for a callback to be invoked when an action is 297 * performed on the editor. 298 */ 299 public interface OnEditorActionListener { 300 /** 301 * Called when an action is being performed. 302 * 303 * @param v The view that was clicked. 304 * @param actionId Identifier of the action. This will be either the 305 * identifier you supplied, or {@link EditorInfo#IME_NULL 306 * EditorInfo.IME_NULL} if being called due to the enter key 307 * being pressed. 308 * @param event If triggered by an enter key, this is the event; 309 * otherwise, this is null. 310 * @return Return true if you have consumed the action, else false. 311 */ 312 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 313 } 314 315 public TextView(Context context) { 316 this(context, null); 317 } 318 319 public TextView(Context context, 320 AttributeSet attrs) { 321 this(context, attrs, com.android.internal.R.attr.textViewStyle); 322 } 323 324 public TextView(Context context, 325 AttributeSet attrs, 326 int defStyle) { 327 super(context, attrs, defStyle); 328 mText = ""; 329 330 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 331 mTextPaint.density = getResources().getDisplayMetrics().density; 332 mTextPaint.setCompatibilityScaling( 333 getResources().getCompatibilityInfo().applicationScale); 334 335 // If we get the paint from the skin, we should set it to left, since 336 // the layout always wants it to be left. 337 // mTextPaint.setTextAlign(Paint.Align.LEFT); 338 339 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 340 mHighlightPaint.setCompatibilityScaling( 341 getResources().getCompatibilityInfo().applicationScale); 342 343 mMovement = getDefaultMovementMethod(); 344 mTransformation = null; 345 346 TypedArray a = 347 context.obtainStyledAttributes( 348 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 349 350 int textColorHighlight = 0; 351 ColorStateList textColor = null; 352 ColorStateList textColorHint = null; 353 ColorStateList textColorLink = null; 354 int textSize = 15; 355 int typefaceIndex = -1; 356 int styleIndex = -1; 357 358 /* 359 * Look the appearance up without checking first if it exists because 360 * almost every TextView has one and it greatly simplifies the logic 361 * to be able to parse the appearance first and then let specific tags 362 * for this View override it. 363 */ 364 TypedArray appearance = null; 365 int ap = a.getResourceId(com.android.internal.R.styleable.TextView_textAppearance, -1); 366 if (ap != -1) { 367 appearance = context.obtainStyledAttributes(ap, 368 com.android.internal.R.styleable. 369 TextAppearance); 370 } 371 if (appearance != null) { 372 int n = appearance.getIndexCount(); 373 for (int i = 0; i < n; i++) { 374 int attr = appearance.getIndex(i); 375 376 switch (attr) { 377 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 378 textColorHighlight = appearance.getColor(attr, textColorHighlight); 379 break; 380 381 case com.android.internal.R.styleable.TextAppearance_textColor: 382 textColor = appearance.getColorStateList(attr); 383 break; 384 385 case com.android.internal.R.styleable.TextAppearance_textColorHint: 386 textColorHint = appearance.getColorStateList(attr); 387 break; 388 389 case com.android.internal.R.styleable.TextAppearance_textColorLink: 390 textColorLink = appearance.getColorStateList(attr); 391 break; 392 393 case com.android.internal.R.styleable.TextAppearance_textSize: 394 textSize = appearance.getDimensionPixelSize(attr, textSize); 395 break; 396 397 case com.android.internal.R.styleable.TextAppearance_typeface: 398 typefaceIndex = appearance.getInt(attr, -1); 399 break; 400 401 case com.android.internal.R.styleable.TextAppearance_textStyle: 402 styleIndex = appearance.getInt(attr, -1); 403 break; 404 } 405 } 406 407 appearance.recycle(); 408 } 409 410 boolean editable = getDefaultEditable(); 411 CharSequence inputMethod = null; 412 int numeric = 0; 413 CharSequence digits = null; 414 boolean phone = false; 415 boolean autotext = false; 416 int autocap = -1; 417 int buffertype = 0; 418 boolean selectallonfocus = false; 419 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 420 drawableBottom = null; 421 int drawablePadding = 0; 422 int ellipsize = -1; 423 boolean singleLine = false; 424 int maxlength = -1; 425 CharSequence text = ""; 426 CharSequence hint = null; 427 int shadowcolor = 0; 428 float dx = 0, dy = 0, r = 0; 429 boolean password = false; 430 int inputType = EditorInfo.TYPE_NULL; 431 432 int n = a.getIndexCount(); 433 for (int i = 0; i < n; i++) { 434 int attr = a.getIndex(i); 435 436 switch (attr) { 437 case com.android.internal.R.styleable.TextView_editable: 438 editable = a.getBoolean(attr, editable); 439 break; 440 441 case com.android.internal.R.styleable.TextView_inputMethod: 442 inputMethod = a.getText(attr); 443 break; 444 445 case com.android.internal.R.styleable.TextView_numeric: 446 numeric = a.getInt(attr, numeric); 447 break; 448 449 case com.android.internal.R.styleable.TextView_digits: 450 digits = a.getText(attr); 451 break; 452 453 case com.android.internal.R.styleable.TextView_phoneNumber: 454 phone = a.getBoolean(attr, phone); 455 break; 456 457 case com.android.internal.R.styleable.TextView_autoText: 458 autotext = a.getBoolean(attr, autotext); 459 break; 460 461 case com.android.internal.R.styleable.TextView_capitalize: 462 autocap = a.getInt(attr, autocap); 463 break; 464 465 case com.android.internal.R.styleable.TextView_bufferType: 466 buffertype = a.getInt(attr, buffertype); 467 break; 468 469 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 470 selectallonfocus = a.getBoolean(attr, selectallonfocus); 471 break; 472 473 case com.android.internal.R.styleable.TextView_autoLink: 474 mAutoLinkMask = a.getInt(attr, 0); 475 break; 476 477 case com.android.internal.R.styleable.TextView_linksClickable: 478 mLinksClickable = a.getBoolean(attr, true); 479 break; 480 481 case com.android.internal.R.styleable.TextView_drawableLeft: 482 drawableLeft = a.getDrawable(attr); 483 break; 484 485 case com.android.internal.R.styleable.TextView_drawableTop: 486 drawableTop = a.getDrawable(attr); 487 break; 488 489 case com.android.internal.R.styleable.TextView_drawableRight: 490 drawableRight = a.getDrawable(attr); 491 break; 492 493 case com.android.internal.R.styleable.TextView_drawableBottom: 494 drawableBottom = a.getDrawable(attr); 495 break; 496 497 case com.android.internal.R.styleable.TextView_drawablePadding: 498 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 499 break; 500 501 case com.android.internal.R.styleable.TextView_maxLines: 502 setMaxLines(a.getInt(attr, -1)); 503 break; 504 505 case com.android.internal.R.styleable.TextView_maxHeight: 506 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 507 break; 508 509 case com.android.internal.R.styleable.TextView_lines: 510 setLines(a.getInt(attr, -1)); 511 break; 512 513 case com.android.internal.R.styleable.TextView_height: 514 setHeight(a.getDimensionPixelSize(attr, -1)); 515 break; 516 517 case com.android.internal.R.styleable.TextView_minLines: 518 setMinLines(a.getInt(attr, -1)); 519 break; 520 521 case com.android.internal.R.styleable.TextView_minHeight: 522 setMinHeight(a.getDimensionPixelSize(attr, -1)); 523 break; 524 525 case com.android.internal.R.styleable.TextView_maxEms: 526 setMaxEms(a.getInt(attr, -1)); 527 break; 528 529 case com.android.internal.R.styleable.TextView_maxWidth: 530 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 531 break; 532 533 case com.android.internal.R.styleable.TextView_ems: 534 setEms(a.getInt(attr, -1)); 535 break; 536 537 case com.android.internal.R.styleable.TextView_width: 538 setWidth(a.getDimensionPixelSize(attr, -1)); 539 break; 540 541 case com.android.internal.R.styleable.TextView_minEms: 542 setMinEms(a.getInt(attr, -1)); 543 break; 544 545 case com.android.internal.R.styleable.TextView_minWidth: 546 setMinWidth(a.getDimensionPixelSize(attr, -1)); 547 break; 548 549 case com.android.internal.R.styleable.TextView_gravity: 550 setGravity(a.getInt(attr, -1)); 551 break; 552 553 case com.android.internal.R.styleable.TextView_hint: 554 hint = a.getText(attr); 555 break; 556 557 case com.android.internal.R.styleable.TextView_text: 558 text = a.getText(attr); 559 break; 560 561 case com.android.internal.R.styleable.TextView_scrollHorizontally: 562 if (a.getBoolean(attr, false)) { 563 setHorizontallyScrolling(true); 564 } 565 break; 566 567 case com.android.internal.R.styleable.TextView_singleLine: 568 singleLine = a.getBoolean(attr, singleLine); 569 break; 570 571 case com.android.internal.R.styleable.TextView_ellipsize: 572 ellipsize = a.getInt(attr, ellipsize); 573 break; 574 575 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 576 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 577 break; 578 579 case com.android.internal.R.styleable.TextView_includeFontPadding: 580 if (!a.getBoolean(attr, true)) { 581 setIncludeFontPadding(false); 582 } 583 break; 584 585 case com.android.internal.R.styleable.TextView_cursorVisible: 586 if (!a.getBoolean(attr, true)) { 587 setCursorVisible(false); 588 } 589 break; 590 591 case com.android.internal.R.styleable.TextView_maxLength: 592 maxlength = a.getInt(attr, -1); 593 break; 594 595 case com.android.internal.R.styleable.TextView_textScaleX: 596 setTextScaleX(a.getFloat(attr, 1.0f)); 597 break; 598 599 case com.android.internal.R.styleable.TextView_freezesText: 600 mFreezesText = a.getBoolean(attr, false); 601 break; 602 603 case com.android.internal.R.styleable.TextView_shadowColor: 604 shadowcolor = a.getInt(attr, 0); 605 break; 606 607 case com.android.internal.R.styleable.TextView_shadowDx: 608 dx = a.getFloat(attr, 0); 609 break; 610 611 case com.android.internal.R.styleable.TextView_shadowDy: 612 dy = a.getFloat(attr, 0); 613 break; 614 615 case com.android.internal.R.styleable.TextView_shadowRadius: 616 r = a.getFloat(attr, 0); 617 break; 618 619 case com.android.internal.R.styleable.TextView_enabled: 620 setEnabled(a.getBoolean(attr, isEnabled())); 621 break; 622 623 case com.android.internal.R.styleable.TextView_textColorHighlight: 624 textColorHighlight = a.getColor(attr, textColorHighlight); 625 break; 626 627 case com.android.internal.R.styleable.TextView_textColor: 628 textColor = a.getColorStateList(attr); 629 break; 630 631 case com.android.internal.R.styleable.TextView_textColorHint: 632 textColorHint = a.getColorStateList(attr); 633 break; 634 635 case com.android.internal.R.styleable.TextView_textColorLink: 636 textColorLink = a.getColorStateList(attr); 637 break; 638 639 case com.android.internal.R.styleable.TextView_textSize: 640 textSize = a.getDimensionPixelSize(attr, textSize); 641 break; 642 643 case com.android.internal.R.styleable.TextView_typeface: 644 typefaceIndex = a.getInt(attr, typefaceIndex); 645 break; 646 647 case com.android.internal.R.styleable.TextView_textStyle: 648 styleIndex = a.getInt(attr, styleIndex); 649 break; 650 651 case com.android.internal.R.styleable.TextView_password: 652 password = a.getBoolean(attr, password); 653 break; 654 655 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 656 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 657 break; 658 659 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 660 mSpacingMult = a.getFloat(attr, mSpacingMult); 661 break; 662 663 case com.android.internal.R.styleable.TextView_inputType: 664 inputType = a.getInt(attr, mInputType); 665 break; 666 667 case com.android.internal.R.styleable.TextView_imeOptions: 668 if (mInputContentType == null) { 669 mInputContentType = new InputContentType(); 670 } 671 mInputContentType.imeOptions = a.getInt(attr, 672 mInputContentType.imeOptions); 673 break; 674 675 case com.android.internal.R.styleable.TextView_imeActionLabel: 676 if (mInputContentType == null) { 677 mInputContentType = new InputContentType(); 678 } 679 mInputContentType.imeActionLabel = a.getText(attr); 680 break; 681 682 case com.android.internal.R.styleable.TextView_imeActionId: 683 if (mInputContentType == null) { 684 mInputContentType = new InputContentType(); 685 } 686 mInputContentType.imeActionId = a.getInt(attr, 687 mInputContentType.imeActionId); 688 break; 689 690 case com.android.internal.R.styleable.TextView_privateImeOptions: 691 setPrivateImeOptions(a.getString(attr)); 692 break; 693 694 case com.android.internal.R.styleable.TextView_editorExtras: 695 try { 696 setInputExtras(a.getResourceId(attr, 0)); 697 } catch (XmlPullParserException e) { 698 Log.w("TextView", "Failure reading input extras", e); 699 } catch (IOException e) { 700 Log.w("TextView", "Failure reading input extras", e); 701 } 702 break; 703 } 704 } 705 a.recycle(); 706 707 BufferType bufferType = BufferType.EDITABLE; 708 709 if ((inputType&(EditorInfo.TYPE_MASK_CLASS 710 |EditorInfo.TYPE_MASK_VARIATION)) 711 == (EditorInfo.TYPE_CLASS_TEXT 712 |EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 713 password = true; 714 } 715 716 if (inputMethod != null) { 717 Class c; 718 719 try { 720 c = Class.forName(inputMethod.toString()); 721 } catch (ClassNotFoundException ex) { 722 throw new RuntimeException(ex); 723 } 724 725 try { 726 mInput = (KeyListener) c.newInstance(); 727 } catch (InstantiationException ex) { 728 throw new RuntimeException(ex); 729 } catch (IllegalAccessException ex) { 730 throw new RuntimeException(ex); 731 } 732 try { 733 mInputType = inputType != EditorInfo.TYPE_NULL 734 ? inputType 735 : mInput.getInputType(); 736 } catch (IncompatibleClassChangeError e) { 737 mInputType = EditorInfo.TYPE_CLASS_TEXT; 738 } 739 } else if (digits != null) { 740 mInput = DigitsKeyListener.getInstance(digits.toString()); 741 // If no input type was specified, we will default to generic 742 // text, since we can't tell the IME about the set of digits 743 // that was selected. 744 mInputType = inputType != EditorInfo.TYPE_NULL 745 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 746 } else if (inputType != EditorInfo.TYPE_NULL) { 747 setInputType(inputType, true); 748 singleLine = (inputType&(EditorInfo.TYPE_MASK_CLASS 749 | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) != 750 (EditorInfo.TYPE_CLASS_TEXT 751 | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 752 } else if (phone) { 753 mInput = DialerKeyListener.getInstance(); 754 mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 755 } else if (numeric != 0) { 756 mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 757 (numeric & DECIMAL) != 0); 758 inputType = EditorInfo.TYPE_CLASS_NUMBER; 759 if ((numeric & SIGNED) != 0) { 760 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 761 } 762 if ((numeric & DECIMAL) != 0) { 763 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 764 } 765 mInputType = inputType; 766 } else if (autotext || autocap != -1) { 767 TextKeyListener.Capitalize cap; 768 769 inputType = EditorInfo.TYPE_CLASS_TEXT; 770 if (!singleLine) { 771 inputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 772 } 773 774 switch (autocap) { 775 case 1: 776 cap = TextKeyListener.Capitalize.SENTENCES; 777 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 778 break; 779 780 case 2: 781 cap = TextKeyListener.Capitalize.WORDS; 782 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 783 break; 784 785 case 3: 786 cap = TextKeyListener.Capitalize.CHARACTERS; 787 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 788 break; 789 790 default: 791 cap = TextKeyListener.Capitalize.NONE; 792 break; 793 } 794 795 mInput = TextKeyListener.getInstance(autotext, cap); 796 mInputType = inputType; 797 } else if (editable) { 798 mInput = TextKeyListener.getInstance(); 799 mInputType = EditorInfo.TYPE_CLASS_TEXT; 800 } else { 801 mInput = null; 802 803 switch (buffertype) { 804 case 0: 805 bufferType = BufferType.NORMAL; 806 break; 807 case 1: 808 bufferType = BufferType.SPANNABLE; 809 break; 810 case 2: 811 bufferType = BufferType.EDITABLE; 812 break; 813 } 814 } 815 816 if (password && (mInputType&EditorInfo.TYPE_MASK_CLASS) 817 == EditorInfo.TYPE_CLASS_TEXT) { 818 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 819 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 820 } 821 822 if (selectallonfocus) { 823 mSelectAllOnFocus = true; 824 825 if (bufferType == BufferType.NORMAL) 826 bufferType = BufferType.SPANNABLE; 827 } 828 829 setCompoundDrawablesWithIntrinsicBounds( 830 drawableLeft, drawableTop, drawableRight, drawableBottom); 831 setCompoundDrawablePadding(drawablePadding); 832 833 if (singleLine) { 834 setSingleLine(); 835 836 if (mInput == null && ellipsize < 0) { 837 ellipsize = 3; // END 838 } 839 } 840 841 switch (ellipsize) { 842 case 1: 843 setEllipsize(TextUtils.TruncateAt.START); 844 break; 845 case 2: 846 setEllipsize(TextUtils.TruncateAt.MIDDLE); 847 break; 848 case 3: 849 setEllipsize(TextUtils.TruncateAt.END); 850 break; 851 case 4: 852 setHorizontalFadingEdgeEnabled(true); 853 setEllipsize(TextUtils.TruncateAt.MARQUEE); 854 break; 855 } 856 857 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 858 setHintTextColor(textColorHint); 859 setLinkTextColor(textColorLink); 860 if (textColorHighlight != 0) { 861 setHighlightColor(textColorHighlight); 862 } 863 setRawTextSize(textSize); 864 865 if (password) { 866 setTransformationMethod(PasswordTransformationMethod.getInstance()); 867 typefaceIndex = MONOSPACE; 868 } else if ((mInputType&(EditorInfo.TYPE_MASK_CLASS 869 |EditorInfo.TYPE_MASK_VARIATION)) 870 == (EditorInfo.TYPE_CLASS_TEXT 871 |EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 872 typefaceIndex = MONOSPACE; 873 } 874 875 setTypefaceByIndex(typefaceIndex, styleIndex); 876 877 if (shadowcolor != 0) { 878 setShadowLayer(r, dx, dy, shadowcolor); 879 } 880 881 if (maxlength >= 0) { 882 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 883 } else { 884 setFilters(NO_FILTERS); 885 } 886 887 setText(text, bufferType); 888 if (hint != null) setHint(hint); 889 890 /* 891 * Views are not normally focusable unless specified to be. 892 * However, TextViews that have input or movement methods *are* 893 * focusable by default. 894 */ 895 a = context.obtainStyledAttributes(attrs, 896 com.android.internal.R.styleable.View, 897 defStyle, 0); 898 899 boolean focusable = mMovement != null || mInput != null; 900 boolean clickable = focusable; 901 boolean longClickable = focusable; 902 903 n = a.getIndexCount(); 904 for (int i = 0; i < n; i++) { 905 int attr = a.getIndex(i); 906 907 switch (attr) { 908 case com.android.internal.R.styleable.View_focusable: 909 focusable = a.getBoolean(attr, focusable); 910 break; 911 912 case com.android.internal.R.styleable.View_clickable: 913 clickable = a.getBoolean(attr, clickable); 914 break; 915 916 case com.android.internal.R.styleable.View_longClickable: 917 longClickable = a.getBoolean(attr, longClickable); 918 break; 919 } 920 } 921 a.recycle(); 922 923 setFocusable(focusable); 924 setClickable(clickable); 925 setLongClickable(longClickable); 926 } 927 928 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 929 Typeface tf = null; 930 switch (typefaceIndex) { 931 case SANS: 932 tf = Typeface.SANS_SERIF; 933 break; 934 935 case SERIF: 936 tf = Typeface.SERIF; 937 break; 938 939 case MONOSPACE: 940 tf = Typeface.MONOSPACE; 941 break; 942 } 943 944 setTypeface(tf, styleIndex); 945 } 946 947 /** 948 * Sets the typeface and style in which the text should be displayed, 949 * and turns on the fake bold and italic bits in the Paint if the 950 * Typeface that you provided does not have all the bits in the 951 * style that you specified. 952 * 953 * @attr ref android.R.styleable#TextView_typeface 954 * @attr ref android.R.styleable#TextView_textStyle 955 */ 956 public void setTypeface(Typeface tf, int style) { 957 if (style > 0) { 958 if (tf == null) { 959 tf = Typeface.defaultFromStyle(style); 960 } else { 961 tf = Typeface.create(tf, style); 962 } 963 964 setTypeface(tf); 965 // now compute what (if any) algorithmic styling is needed 966 int typefaceStyle = tf != null ? tf.getStyle() : 0; 967 int need = style & ~typefaceStyle; 968 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 969 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 970 } else { 971 mTextPaint.setFakeBoldText(false); 972 mTextPaint.setTextSkewX(0); 973 setTypeface(tf); 974 } 975 } 976 977 /** 978 * Subclasses override this to specify that they have a KeyListener 979 * by default even if not specifically called for in the XML options. 980 */ 981 protected boolean getDefaultEditable() { 982 return false; 983 } 984 985 /** 986 * Subclasses override this to specify a default movement method. 987 */ 988 protected MovementMethod getDefaultMovementMethod() { 989 return null; 990 } 991 992 /** 993 * Return the text the TextView is displaying. If setText() was called with 994 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 995 * the return value from this method to Spannable or Editable, respectively. 996 * 997 * Note: The content of the return value should not be modified. If you want 998 * a modifiable one, you should make your own copy first. 999 */ 1000 @ViewDebug.CapturedViewProperty 1001 public CharSequence getText() { 1002 return mText; 1003 } 1004 1005 /** 1006 * Returns the length, in characters, of the text managed by this TextView 1007 */ 1008 public int length() { 1009 return mText.length(); 1010 } 1011 1012 /** 1013 * Return the text the TextView is displaying as an Editable object. If 1014 * the text is not editable, null is returned. 1015 * 1016 * @see #getText 1017 */ 1018 public Editable getEditableText() { 1019 return (mText instanceof Editable) ? (Editable)mText : null; 1020 } 1021 1022 /** 1023 * @return the height of one standard line in pixels. Note that markup 1024 * within the text can cause individual lines to be taller or shorter 1025 * than this height, and the layout may contain additional first- 1026 * or last-line padding. 1027 */ 1028 public int getLineHeight() { 1029 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult 1030 + mSpacingAdd); 1031 } 1032 1033 /** 1034 * @return the Layout that is currently being used to display the text. 1035 * This can be null if the text or width has recently changes. 1036 */ 1037 public final Layout getLayout() { 1038 return mLayout; 1039 } 1040 1041 /** 1042 * @return the current key listener for this TextView. 1043 * This will frequently be null for non-EditText TextViews. 1044 */ 1045 public final KeyListener getKeyListener() { 1046 return mInput; 1047 } 1048 1049 /** 1050 * Sets the key listener to be used with this TextView. This can be null 1051 * to disallow user input. Note that this method has significant and 1052 * subtle interactions with soft keyboards and other input method: 1053 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1054 * for important details. Calling this method will replace the current 1055 * content type of the text view with the content type returned by the 1056 * key listener. 1057 * <p> 1058 * Be warned that if you want a TextView with a key listener or movement 1059 * method not to be focusable, or if you want a TextView without a 1060 * key listener or movement method to be focusable, you must call 1061 * {@link #setFocusable} again after calling this to get the focusability 1062 * back the way you want it. 1063 * 1064 * @attr ref android.R.styleable#TextView_numeric 1065 * @attr ref android.R.styleable#TextView_digits 1066 * @attr ref android.R.styleable#TextView_phoneNumber 1067 * @attr ref android.R.styleable#TextView_inputMethod 1068 * @attr ref android.R.styleable#TextView_capitalize 1069 * @attr ref android.R.styleable#TextView_autoText 1070 */ 1071 public void setKeyListener(KeyListener input) { 1072 setKeyListenerOnly(input); 1073 fixFocusableAndClickableSettings(); 1074 1075 if (input != null) { 1076 try { 1077 mInputType = mInput.getInputType(); 1078 } catch (IncompatibleClassChangeError e) { 1079 mInputType = EditorInfo.TYPE_CLASS_TEXT; 1080 } 1081 if ((mInputType&EditorInfo.TYPE_MASK_CLASS) 1082 == EditorInfo.TYPE_CLASS_TEXT) { 1083 if (mSingleLine) { 1084 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 1085 } else { 1086 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 1087 } 1088 } 1089 } else { 1090 mInputType = EditorInfo.TYPE_NULL; 1091 } 1092 1093 InputMethodManager imm = InputMethodManager.peekInstance(); 1094 if (imm != null) imm.restartInput(this); 1095 } 1096 1097 private void setKeyListenerOnly(KeyListener input) { 1098 mInput = input; 1099 if (mInput != null && !(mText instanceof Editable)) 1100 setText(mText); 1101 1102 setFilters((Editable) mText, mFilters); 1103 } 1104 1105 /** 1106 * @return the movement method being used for this TextView. 1107 * This will frequently be null for non-EditText TextViews. 1108 */ 1109 public final MovementMethod getMovementMethod() { 1110 return mMovement; 1111 } 1112 1113 /** 1114 * Sets the movement method (arrow key handler) to be used for 1115 * this TextView. This can be null to disallow using the arrow keys 1116 * to move the cursor or scroll the view. 1117 * <p> 1118 * Be warned that if you want a TextView with a key listener or movement 1119 * method not to be focusable, or if you want a TextView without a 1120 * key listener or movement method to be focusable, you must call 1121 * {@link #setFocusable} again after calling this to get the focusability 1122 * back the way you want it. 1123 */ 1124 public final void setMovementMethod(MovementMethod movement) { 1125 mMovement = movement; 1126 1127 if (mMovement != null && !(mText instanceof Spannable)) 1128 setText(mText); 1129 1130 fixFocusableAndClickableSettings(); 1131 } 1132 1133 private void fixFocusableAndClickableSettings() { 1134 if ((mMovement != null) || mInput != null) { 1135 setFocusable(true); 1136 setClickable(true); 1137 setLongClickable(true); 1138 } else { 1139 setFocusable(false); 1140 setClickable(false); 1141 setLongClickable(false); 1142 } 1143 } 1144 1145 /** 1146 * @return the current transformation method for this TextView. 1147 * This will frequently be null except for single-line and password 1148 * fields. 1149 */ 1150 public final TransformationMethod getTransformationMethod() { 1151 return mTransformation; 1152 } 1153 1154 /** 1155 * Sets the transformation that is applied to the text that this 1156 * TextView is displaying. 1157 * 1158 * @attr ref android.R.styleable#TextView_password 1159 * @attr ref android.R.styleable#TextView_singleLine 1160 */ 1161 public final void setTransformationMethod(TransformationMethod method) { 1162 if (method == mTransformation) { 1163 // Avoid the setText() below if the transformation is 1164 // the same. 1165 return; 1166 } 1167 if (mTransformation != null) { 1168 if (mText instanceof Spannable) { 1169 ((Spannable) mText).removeSpan(mTransformation); 1170 } 1171 } 1172 1173 mTransformation = method; 1174 1175 setText(mText); 1176 } 1177 1178 /** 1179 * Returns the top padding of the view, plus space for the top 1180 * Drawable if any. 1181 */ 1182 public int getCompoundPaddingTop() { 1183 final Drawables dr = mDrawables; 1184 if (dr == null || dr.mDrawableTop == null) { 1185 return mPaddingTop; 1186 } else { 1187 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1188 } 1189 } 1190 1191 /** 1192 * Returns the bottom padding of the view, plus space for the bottom 1193 * Drawable if any. 1194 */ 1195 public int getCompoundPaddingBottom() { 1196 final Drawables dr = mDrawables; 1197 if (dr == null || dr.mDrawableBottom == null) { 1198 return mPaddingBottom; 1199 } else { 1200 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1201 } 1202 } 1203 1204 /** 1205 * Returns the left padding of the view, plus space for the left 1206 * Drawable if any. 1207 */ 1208 public int getCompoundPaddingLeft() { 1209 final Drawables dr = mDrawables; 1210 if (dr == null || dr.mDrawableLeft == null) { 1211 return mPaddingLeft; 1212 } else { 1213 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1214 } 1215 } 1216 1217 /** 1218 * Returns the right padding of the view, plus space for the right 1219 * Drawable if any. 1220 */ 1221 public int getCompoundPaddingRight() { 1222 final Drawables dr = mDrawables; 1223 if (dr == null || dr.mDrawableRight == null) { 1224 return mPaddingRight; 1225 } else { 1226 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1227 } 1228 } 1229 1230 /** 1231 * Returns the extended top padding of the view, including both the 1232 * top Drawable if any and any extra space to keep more than maxLines 1233 * of text from showing. It is only valid to call this after measuring. 1234 */ 1235 public int getExtendedPaddingTop() { 1236 if (mMaxMode != LINES) { 1237 return getCompoundPaddingTop(); 1238 } 1239 1240 if (mLayout.getLineCount() <= mMaximum) { 1241 return getCompoundPaddingTop(); 1242 } 1243 1244 int top = getCompoundPaddingTop(); 1245 int bottom = getCompoundPaddingBottom(); 1246 int viewht = getHeight() - top - bottom; 1247 int layoutht = mLayout.getLineTop(mMaximum); 1248 1249 if (layoutht >= viewht) { 1250 return top; 1251 } 1252 1253 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1254 if (gravity == Gravity.TOP) { 1255 return top; 1256 } else if (gravity == Gravity.BOTTOM) { 1257 return top + viewht - layoutht; 1258 } else { // (gravity == Gravity.CENTER_VERTICAL) 1259 return top + (viewht - layoutht) / 2; 1260 } 1261 } 1262 1263 /** 1264 * Returns the extended bottom padding of the view, including both the 1265 * bottom Drawable if any and any extra space to keep more than maxLines 1266 * of text from showing. It is only valid to call this after measuring. 1267 */ 1268 public int getExtendedPaddingBottom() { 1269 if (mMaxMode != LINES) { 1270 return getCompoundPaddingBottom(); 1271 } 1272 1273 if (mLayout.getLineCount() <= mMaximum) { 1274 return getCompoundPaddingBottom(); 1275 } 1276 1277 int top = getCompoundPaddingTop(); 1278 int bottom = getCompoundPaddingBottom(); 1279 int viewht = getHeight() - top - bottom; 1280 int layoutht = mLayout.getLineTop(mMaximum); 1281 1282 if (layoutht >= viewht) { 1283 return bottom; 1284 } 1285 1286 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1287 if (gravity == Gravity.TOP) { 1288 return bottom + viewht - layoutht; 1289 } else if (gravity == Gravity.BOTTOM) { 1290 return bottom; 1291 } else { // (gravity == Gravity.CENTER_VERTICAL) 1292 return bottom + (viewht - layoutht) / 2; 1293 } 1294 } 1295 1296 /** 1297 * Returns the total left padding of the view, including the left 1298 * Drawable if any. 1299 */ 1300 public int getTotalPaddingLeft() { 1301 return getCompoundPaddingLeft(); 1302 } 1303 1304 /** 1305 * Returns the total right padding of the view, including the right 1306 * Drawable if any. 1307 */ 1308 public int getTotalPaddingRight() { 1309 return getCompoundPaddingRight(); 1310 } 1311 1312 /** 1313 * Returns the total top padding of the view, including the top 1314 * Drawable if any, the extra space to keep more than maxLines 1315 * from showing, and the vertical offset for gravity, if any. 1316 */ 1317 public int getTotalPaddingTop() { 1318 return getExtendedPaddingTop() + getVerticalOffset(true); 1319 } 1320 1321 /** 1322 * Returns the total bottom padding of the view, including the bottom 1323 * Drawable if any, the extra space to keep more than maxLines 1324 * from showing, and the vertical offset for gravity, if any. 1325 */ 1326 public int getTotalPaddingBottom() { 1327 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1328 } 1329 1330 /** 1331 * Sets the Drawables (if any) to appear to the left of, above, 1332 * to the right of, and below the text. Use null if you do not 1333 * want a Drawable there. The Drawables must already have had 1334 * {@link Drawable#setBounds} called. 1335 * 1336 * @attr ref android.R.styleable#TextView_drawableLeft 1337 * @attr ref android.R.styleable#TextView_drawableTop 1338 * @attr ref android.R.styleable#TextView_drawableRight 1339 * @attr ref android.R.styleable#TextView_drawableBottom 1340 */ 1341 public void setCompoundDrawables(Drawable left, Drawable top, 1342 Drawable right, Drawable bottom) { 1343 Drawables dr = mDrawables; 1344 1345 final boolean drawables = left != null || top != null 1346 || right != null || bottom != null; 1347 1348 if (!drawables) { 1349 // Clearing drawables... can we free the data structure? 1350 if (dr != null) { 1351 if (dr.mDrawablePadding == 0) { 1352 mDrawables = null; 1353 } else { 1354 // We need to retain the last set padding, so just clear 1355 // out all of the fields in the existing structure. 1356 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1357 dr.mDrawableLeft = null; 1358 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1359 dr.mDrawableTop = null; 1360 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1361 dr.mDrawableRight = null; 1362 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1363 dr.mDrawableBottom = null; 1364 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1365 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1366 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1367 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1368 } 1369 } 1370 } else { 1371 if (dr == null) { 1372 mDrawables = dr = new Drawables(); 1373 } 1374 1375 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1376 dr.mDrawableLeft.setCallback(null); 1377 } 1378 dr.mDrawableLeft = left; 1379 1380 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1381 dr.mDrawableTop.setCallback(null); 1382 } 1383 dr.mDrawableTop = top; 1384 1385 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1386 dr.mDrawableRight.setCallback(null); 1387 } 1388 dr.mDrawableRight = right; 1389 1390 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1391 dr.mDrawableBottom.setCallback(null); 1392 } 1393 dr.mDrawableBottom = bottom; 1394 1395 final Rect compoundRect = dr.mCompoundRect; 1396 int[] state; 1397 1398 state = getDrawableState(); 1399 1400 if (left != null) { 1401 left.setState(state); 1402 left.copyBounds(compoundRect); 1403 left.setCallback(this); 1404 dr.mDrawableSizeLeft = compoundRect.width(); 1405 dr.mDrawableHeightLeft = compoundRect.height(); 1406 } else { 1407 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1408 } 1409 1410 if (right != null) { 1411 right.setState(state); 1412 right.copyBounds(compoundRect); 1413 right.setCallback(this); 1414 dr.mDrawableSizeRight = compoundRect.width(); 1415 dr.mDrawableHeightRight = compoundRect.height(); 1416 } else { 1417 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1418 } 1419 1420 if (top != null) { 1421 top.setState(state); 1422 top.copyBounds(compoundRect); 1423 top.setCallback(this); 1424 dr.mDrawableSizeTop = compoundRect.height(); 1425 dr.mDrawableWidthTop = compoundRect.width(); 1426 } else { 1427 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1428 } 1429 1430 if (bottom != null) { 1431 bottom.setState(state); 1432 bottom.copyBounds(compoundRect); 1433 bottom.setCallback(this); 1434 dr.mDrawableSizeBottom = compoundRect.height(); 1435 dr.mDrawableWidthBottom = compoundRect.width(); 1436 } else { 1437 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1438 } 1439 } 1440 1441 invalidate(); 1442 requestLayout(); 1443 } 1444 1445 /** 1446 * Sets the Drawables (if any) to appear to the left of, above, 1447 * to the right of, and below the text. Use 0 if you do not 1448 * want a Drawable there. The Drawables' bounds will be set to 1449 * their intrinsic bounds. 1450 * 1451 * @param left Resource identifier of the left Drawable. 1452 * @param top Resource identifier of the top Drawable. 1453 * @param right Resource identifier of the right Drawable. 1454 * @param bottom Resource identifier of the bottom Drawable. 1455 * 1456 * @attr ref android.R.styleable#TextView_drawableLeft 1457 * @attr ref android.R.styleable#TextView_drawableTop 1458 * @attr ref android.R.styleable#TextView_drawableRight 1459 * @attr ref android.R.styleable#TextView_drawableBottom 1460 */ 1461 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1462 final Resources resources = getContext().getResources(); 1463 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1464 top != 0 ? resources.getDrawable(top) : null, 1465 right != 0 ? resources.getDrawable(right) : null, 1466 bottom != 0 ? resources.getDrawable(bottom) : null); 1467 } 1468 1469 /** 1470 * Sets the Drawables (if any) to appear to the left of, above, 1471 * to the right of, and below the text. Use null if you do not 1472 * want a Drawable there. The Drawables' bounds will be set to 1473 * their intrinsic bounds. 1474 * 1475 * @attr ref android.R.styleable#TextView_drawableLeft 1476 * @attr ref android.R.styleable#TextView_drawableTop 1477 * @attr ref android.R.styleable#TextView_drawableRight 1478 * @attr ref android.R.styleable#TextView_drawableBottom 1479 */ 1480 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1481 Drawable right, Drawable bottom) { 1482 1483 if (left != null) { 1484 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1485 } 1486 if (right != null) { 1487 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1488 } 1489 if (top != null) { 1490 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1491 } 1492 if (bottom != null) { 1493 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1494 } 1495 setCompoundDrawables(left, top, right, bottom); 1496 } 1497 1498 /** 1499 * Returns drawables for the left, top, right, and bottom borders. 1500 */ 1501 public Drawable[] getCompoundDrawables() { 1502 final Drawables dr = mDrawables; 1503 if (dr != null) { 1504 return new Drawable[] { 1505 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 1506 }; 1507 } else { 1508 return new Drawable[] { null, null, null, null }; 1509 } 1510 } 1511 1512 /** 1513 * Sets the size of the padding between the compound drawables and 1514 * the text. 1515 * 1516 * @attr ref android.R.styleable#TextView_drawablePadding 1517 */ 1518 public void setCompoundDrawablePadding(int pad) { 1519 Drawables dr = mDrawables; 1520 if (pad == 0) { 1521 if (dr != null) { 1522 dr.mDrawablePadding = pad; 1523 } 1524 } else { 1525 if (dr == null) { 1526 mDrawables = dr = new Drawables(); 1527 } 1528 dr.mDrawablePadding = pad; 1529 } 1530 1531 invalidate(); 1532 requestLayout(); 1533 } 1534 1535 /** 1536 * Returns the padding between the compound drawables and the text. 1537 */ 1538 public int getCompoundDrawablePadding() { 1539 final Drawables dr = mDrawables; 1540 return dr != null ? dr.mDrawablePadding : 0; 1541 } 1542 1543 @Override 1544 public void setPadding(int left, int top, int right, int bottom) { 1545 if (left != mPaddingLeft || 1546 right != mPaddingRight || 1547 top != mPaddingTop || 1548 bottom != mPaddingBottom) { 1549 nullLayouts(); 1550 } 1551 1552 // the super call will requestLayout() 1553 super.setPadding(left, top, right, bottom); 1554 invalidate(); 1555 } 1556 1557 /** 1558 * Gets the autolink mask of the text. See {@link 1559 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1560 * possible values. 1561 * 1562 * @attr ref android.R.styleable#TextView_autoLink 1563 */ 1564 public final int getAutoLinkMask() { 1565 return mAutoLinkMask; 1566 } 1567 1568 /** 1569 * Sets the text color, size, style, hint color, and highlight color 1570 * from the specified TextAppearance resource. 1571 */ 1572 public void setTextAppearance(Context context, int resid) { 1573 TypedArray appearance = 1574 context.obtainStyledAttributes(resid, 1575 com.android.internal.R.styleable.TextAppearance); 1576 1577 int color; 1578 ColorStateList colors; 1579 int ts; 1580 1581 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 1582 if (color != 0) { 1583 setHighlightColor(color); 1584 } 1585 1586 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1587 TextAppearance_textColor); 1588 if (colors != null) { 1589 setTextColor(colors); 1590 } 1591 1592 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 1593 TextAppearance_textSize, 0); 1594 if (ts != 0) { 1595 setRawTextSize(ts); 1596 } 1597 1598 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1599 TextAppearance_textColorHint); 1600 if (colors != null) { 1601 setHintTextColor(colors); 1602 } 1603 1604 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1605 TextAppearance_textColorLink); 1606 if (colors != null) { 1607 setLinkTextColor(colors); 1608 } 1609 1610 int typefaceIndex, styleIndex; 1611 1612 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 1613 TextAppearance_typeface, -1); 1614 styleIndex = appearance.getInt(com.android.internal.R.styleable. 1615 TextAppearance_textStyle, -1); 1616 1617 setTypefaceByIndex(typefaceIndex, styleIndex); 1618 appearance.recycle(); 1619 } 1620 1621 /** 1622 * @return the size (in pixels) of the default text size in this TextView. 1623 */ 1624 public float getTextSize() { 1625 return mTextPaint.getTextSize(); 1626 } 1627 1628 /** 1629 * Set the default text size to the given value, interpreted as "scaled 1630 * pixel" units. This size is adjusted based on the current density and 1631 * user font size preference. 1632 * 1633 * @param size The scaled pixel size. 1634 * 1635 * @attr ref android.R.styleable#TextView_textSize 1636 */ 1637 @android.view.RemotableViewMethod 1638 public void setTextSize(float size) { 1639 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 1640 } 1641 1642 /** 1643 * Set the default text size to a given unit and value. See {@link 1644 * TypedValue} for the possible dimension units. 1645 * 1646 * @param unit The desired dimension unit. 1647 * @param size The desired size in the given units. 1648 * 1649 * @attr ref android.R.styleable#TextView_textSize 1650 */ 1651 public void setTextSize(int unit, float size) { 1652 Context c = getContext(); 1653 Resources r; 1654 1655 if (c == null) 1656 r = Resources.getSystem(); 1657 else 1658 r = c.getResources(); 1659 1660 setRawTextSize(TypedValue.applyDimension( 1661 unit, size, r.getDisplayMetrics())); 1662 } 1663 1664 private void setRawTextSize(float size) { 1665 if (size != mTextPaint.getTextSize()) { 1666 mTextPaint.setTextSize(size); 1667 1668 if (mLayout != null) { 1669 nullLayouts(); 1670 requestLayout(); 1671 invalidate(); 1672 } 1673 } 1674 } 1675 1676 /** 1677 * @return the extent by which text is currently being stretched 1678 * horizontally. This will usually be 1. 1679 */ 1680 public float getTextScaleX() { 1681 return mTextPaint.getTextScaleX(); 1682 } 1683 1684 /** 1685 * Sets the extent by which text should be stretched horizontally. 1686 * 1687 * @attr ref android.R.styleable#TextView_textScaleX 1688 */ 1689 @android.view.RemotableViewMethod 1690 public void setTextScaleX(float size) { 1691 if (size != mTextPaint.getTextScaleX()) { 1692 mUserSetTextScaleX = true; 1693 mTextPaint.setTextScaleX(size); 1694 1695 if (mLayout != null) { 1696 nullLayouts(); 1697 requestLayout(); 1698 invalidate(); 1699 } 1700 } 1701 } 1702 1703 /** 1704 * Sets the typeface and style in which the text should be displayed. 1705 * Note that not all Typeface families actually have bold and italic 1706 * variants, so you may need to use 1707 * {@link #setTypeface(Typeface, int)} to get the appearance 1708 * that you actually want. 1709 * 1710 * @attr ref android.R.styleable#TextView_typeface 1711 * @attr ref android.R.styleable#TextView_textStyle 1712 */ 1713 public void setTypeface(Typeface tf) { 1714 if (mTextPaint.getTypeface() != tf) { 1715 mTextPaint.setTypeface(tf); 1716 1717 if (mLayout != null) { 1718 nullLayouts(); 1719 requestLayout(); 1720 invalidate(); 1721 } 1722 } 1723 } 1724 1725 /** 1726 * @return the current typeface and style in which the text is being 1727 * displayed. 1728 */ 1729 public Typeface getTypeface() { 1730 return mTextPaint.getTypeface(); 1731 } 1732 1733 /** 1734 * Sets the text color for all the states (normal, selected, 1735 * focused) to be this color. 1736 * 1737 * @attr ref android.R.styleable#TextView_textColor 1738 */ 1739 @android.view.RemotableViewMethod 1740 public void setTextColor(int color) { 1741 mTextColor = ColorStateList.valueOf(color); 1742 updateTextColors(); 1743 } 1744 1745 /** 1746 * Sets the text color. 1747 * 1748 * @attr ref android.R.styleable#TextView_textColor 1749 */ 1750 public void setTextColor(ColorStateList colors) { 1751 if (colors == null) { 1752 throw new NullPointerException(); 1753 } 1754 1755 mTextColor = colors; 1756 updateTextColors(); 1757 } 1758 1759 /** 1760 * Return the set of text colors. 1761 * 1762 * @return Returns the set of text colors. 1763 */ 1764 public final ColorStateList getTextColors() { 1765 return mTextColor; 1766 } 1767 1768 /** 1769 * <p>Return the current color selected for normal text.</p> 1770 * 1771 * @return Returns the current text color. 1772 */ 1773 public final int getCurrentTextColor() { 1774 return mCurTextColor; 1775 } 1776 1777 /** 1778 * Sets the color used to display the selection highlight. 1779 * 1780 * @attr ref android.R.styleable#TextView_textColorHighlight 1781 */ 1782 @android.view.RemotableViewMethod 1783 public void setHighlightColor(int color) { 1784 if (mHighlightColor != color) { 1785 mHighlightColor = color; 1786 invalidate(); 1787 } 1788 } 1789 1790 /** 1791 * Gives the text a shadow of the specified radius and color, the specified 1792 * distance from its normal position. 1793 * 1794 * @attr ref android.R.styleable#TextView_shadowColor 1795 * @attr ref android.R.styleable#TextView_shadowDx 1796 * @attr ref android.R.styleable#TextView_shadowDy 1797 * @attr ref android.R.styleable#TextView_shadowRadius 1798 */ 1799 public void setShadowLayer(float radius, float dx, float dy, int color) { 1800 mTextPaint.setShadowLayer(radius, dx, dy, color); 1801 1802 mShadowRadius = radius; 1803 mShadowDx = dx; 1804 mShadowDy = dy; 1805 1806 invalidate(); 1807 } 1808 1809 /** 1810 * @return the base paint used for the text. Please use this only to 1811 * consult the Paint's properties and not to change them. 1812 */ 1813 public TextPaint getPaint() { 1814 return mTextPaint; 1815 } 1816 1817 /** 1818 * Sets the autolink mask of the text. See {@link 1819 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1820 * possible values. 1821 * 1822 * @attr ref android.R.styleable#TextView_autoLink 1823 */ 1824 @android.view.RemotableViewMethod 1825 public final void setAutoLinkMask(int mask) { 1826 mAutoLinkMask = mask; 1827 } 1828 1829 /** 1830 * Sets whether the movement method will automatically be set to 1831 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1832 * set to nonzero and links are detected in {@link #setText}. 1833 * The default is true. 1834 * 1835 * @attr ref android.R.styleable#TextView_linksClickable 1836 */ 1837 @android.view.RemotableViewMethod 1838 public final void setLinksClickable(boolean whether) { 1839 mLinksClickable = whether; 1840 } 1841 1842 /** 1843 * Returns whether the movement method will automatically be set to 1844 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1845 * set to nonzero and links are detected in {@link #setText}. 1846 * The default is true. 1847 * 1848 * @attr ref android.R.styleable#TextView_linksClickable 1849 */ 1850 public final boolean getLinksClickable() { 1851 return mLinksClickable; 1852 } 1853 1854 /** 1855 * Returns the list of URLSpans attached to the text 1856 * (by {@link Linkify} or otherwise) if any. You can call 1857 * {@link URLSpan#getURL} on them to find where they link to 1858 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 1859 * to find the region of the text they are attached to. 1860 */ 1861 public URLSpan[] getUrls() { 1862 if (mText instanceof Spanned) { 1863 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 1864 } else { 1865 return new URLSpan[0]; 1866 } 1867 } 1868 1869 /** 1870 * Sets the color of the hint text. 1871 * 1872 * @attr ref android.R.styleable#TextView_textColorHint 1873 */ 1874 @android.view.RemotableViewMethod 1875 public final void setHintTextColor(int color) { 1876 mHintTextColor = ColorStateList.valueOf(color); 1877 updateTextColors(); 1878 } 1879 1880 /** 1881 * Sets the color of the hint text. 1882 * 1883 * @attr ref android.R.styleable#TextView_textColorHint 1884 */ 1885 public final void setHintTextColor(ColorStateList colors) { 1886 mHintTextColor = colors; 1887 updateTextColors(); 1888 } 1889 1890 /** 1891 * <p>Return the color used to paint the hint text.</p> 1892 * 1893 * @return Returns the list of hint text colors. 1894 */ 1895 public final ColorStateList getHintTextColors() { 1896 return mHintTextColor; 1897 } 1898 1899 /** 1900 * <p>Return the current color selected to paint the hint text.</p> 1901 * 1902 * @return Returns the current hint text color. 1903 */ 1904 public final int getCurrentHintTextColor() { 1905 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 1906 } 1907 1908 /** 1909 * Sets the color of links in the text. 1910 * 1911 * @attr ref android.R.styleable#TextView_textColorLink 1912 */ 1913 @android.view.RemotableViewMethod 1914 public final void setLinkTextColor(int color) { 1915 mLinkTextColor = ColorStateList.valueOf(color); 1916 updateTextColors(); 1917 } 1918 1919 /** 1920 * Sets the color of links in the text. 1921 * 1922 * @attr ref android.R.styleable#TextView_textColorLink 1923 */ 1924 public final void setLinkTextColor(ColorStateList colors) { 1925 mLinkTextColor = colors; 1926 updateTextColors(); 1927 } 1928 1929 /** 1930 * <p>Returns the color used to paint links in the text.</p> 1931 * 1932 * @return Returns the list of link text colors. 1933 */ 1934 public final ColorStateList getLinkTextColors() { 1935 return mLinkTextColor; 1936 } 1937 1938 /** 1939 * Sets the horizontal alignment of the text and the 1940 * vertical gravity that will be used when there is extra space 1941 * in the TextView beyond what is required for the text itself. 1942 * 1943 * @see android.view.Gravity 1944 * @attr ref android.R.styleable#TextView_gravity 1945 */ 1946 public void setGravity(int gravity) { 1947 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == 0) { 1948 gravity |= Gravity.LEFT; 1949 } 1950 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 1951 gravity |= Gravity.TOP; 1952 } 1953 1954 boolean newLayout = false; 1955 1956 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) != 1957 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK)) { 1958 newLayout = true; 1959 } 1960 1961 if (gravity != mGravity) { 1962 invalidate(); 1963 } 1964 1965 mGravity = gravity; 1966 1967 if (mLayout != null && newLayout) { 1968 // XXX this is heavy-handed because no actual content changes. 1969 int want = mLayout.getWidth(); 1970 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 1971 1972 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 1973 mRight - mLeft - getCompoundPaddingLeft() - 1974 getCompoundPaddingRight(), true); 1975 } 1976 } 1977 1978 /** 1979 * Returns the horizontal and vertical alignment of this TextView. 1980 * 1981 * @see android.view.Gravity 1982 * @attr ref android.R.styleable#TextView_gravity 1983 */ 1984 public int getGravity() { 1985 return mGravity; 1986 } 1987 1988 /** 1989 * @return the flags on the Paint being used to display the text. 1990 * @see Paint#getFlags 1991 */ 1992 public int getPaintFlags() { 1993 return mTextPaint.getFlags(); 1994 } 1995 1996 /** 1997 * Sets flags on the Paint being used to display the text and 1998 * reflows the text if they are different from the old flags. 1999 * @see Paint#setFlags 2000 */ 2001 @android.view.RemotableViewMethod 2002 public void setPaintFlags(int flags) { 2003 if (mTextPaint.getFlags() != flags) { 2004 mTextPaint.setFlags(flags); 2005 2006 if (mLayout != null) { 2007 nullLayouts(); 2008 requestLayout(); 2009 invalidate(); 2010 } 2011 } 2012 } 2013 2014 /** 2015 * Sets whether the text should be allowed to be wider than the 2016 * View is. If false, it will be wrapped to the width of the View. 2017 * 2018 * @attr ref android.R.styleable#TextView_scrollHorizontally 2019 */ 2020 public void setHorizontallyScrolling(boolean whether) { 2021 mHorizontallyScrolling = whether; 2022 2023 if (mLayout != null) { 2024 nullLayouts(); 2025 requestLayout(); 2026 invalidate(); 2027 } 2028 } 2029 2030 /** 2031 * Makes the TextView at least this many lines tall 2032 * 2033 * @attr ref android.R.styleable#TextView_minLines 2034 */ 2035 @android.view.RemotableViewMethod 2036 public void setMinLines(int minlines) { 2037 mMinimum = minlines; 2038 mMinMode = LINES; 2039 2040 requestLayout(); 2041 invalidate(); 2042 } 2043 2044 /** 2045 * Makes the TextView at least this many pixels tall 2046 * 2047 * @attr ref android.R.styleable#TextView_minHeight 2048 */ 2049 @android.view.RemotableViewMethod 2050 public void setMinHeight(int minHeight) { 2051 mMinimum = minHeight; 2052 mMinMode = PIXELS; 2053 2054 requestLayout(); 2055 invalidate(); 2056 } 2057 2058 /** 2059 * Makes the TextView at most this many lines tall 2060 * 2061 * @attr ref android.R.styleable#TextView_maxLines 2062 */ 2063 @android.view.RemotableViewMethod 2064 public void setMaxLines(int maxlines) { 2065 mMaximum = maxlines; 2066 mMaxMode = LINES; 2067 2068 requestLayout(); 2069 invalidate(); 2070 } 2071 2072 /** 2073 * Makes the TextView at most this many pixels tall 2074 * 2075 * @attr ref android.R.styleable#TextView_maxHeight 2076 */ 2077 @android.view.RemotableViewMethod 2078 public void setMaxHeight(int maxHeight) { 2079 mMaximum = maxHeight; 2080 mMaxMode = PIXELS; 2081 2082 requestLayout(); 2083 invalidate(); 2084 } 2085 2086 /** 2087 * Makes the TextView exactly this many lines tall 2088 * 2089 * @attr ref android.R.styleable#TextView_lines 2090 */ 2091 @android.view.RemotableViewMethod 2092 public void setLines(int lines) { 2093 mMaximum = mMinimum = lines; 2094 mMaxMode = mMinMode = LINES; 2095 2096 requestLayout(); 2097 invalidate(); 2098 } 2099 2100 /** 2101 * Makes the TextView exactly this many pixels tall. 2102 * You could do the same thing by specifying this number in the 2103 * LayoutParams. 2104 * 2105 * @attr ref android.R.styleable#TextView_height 2106 */ 2107 @android.view.RemotableViewMethod 2108 public void setHeight(int pixels) { 2109 mMaximum = mMinimum = pixels; 2110 mMaxMode = mMinMode = PIXELS; 2111 2112 requestLayout(); 2113 invalidate(); 2114 } 2115 2116 /** 2117 * Makes the TextView at least this many ems wide 2118 * 2119 * @attr ref android.R.styleable#TextView_minEms 2120 */ 2121 @android.view.RemotableViewMethod 2122 public void setMinEms(int minems) { 2123 mMinWidth = minems; 2124 mMinWidthMode = EMS; 2125 2126 requestLayout(); 2127 invalidate(); 2128 } 2129 2130 /** 2131 * Makes the TextView at least this many pixels wide 2132 * 2133 * @attr ref android.R.styleable#TextView_minWidth 2134 */ 2135 @android.view.RemotableViewMethod 2136 public void setMinWidth(int minpixels) { 2137 mMinWidth = minpixels; 2138 mMinWidthMode = PIXELS; 2139 2140 requestLayout(); 2141 invalidate(); 2142 } 2143 2144 /** 2145 * Makes the TextView at most this many ems wide 2146 * 2147 * @attr ref android.R.styleable#TextView_maxEms 2148 */ 2149 @android.view.RemotableViewMethod 2150 public void setMaxEms(int maxems) { 2151 mMaxWidth = maxems; 2152 mMaxWidthMode = EMS; 2153 2154 requestLayout(); 2155 invalidate(); 2156 } 2157 2158 /** 2159 * Makes the TextView at most this many pixels wide 2160 * 2161 * @attr ref android.R.styleable#TextView_maxWidth 2162 */ 2163 @android.view.RemotableViewMethod 2164 public void setMaxWidth(int maxpixels) { 2165 mMaxWidth = maxpixels; 2166 mMaxWidthMode = PIXELS; 2167 2168 requestLayout(); 2169 invalidate(); 2170 } 2171 2172 /** 2173 * Makes the TextView exactly this many ems wide 2174 * 2175 * @attr ref android.R.styleable#TextView_ems 2176 */ 2177 @android.view.RemotableViewMethod 2178 public void setEms(int ems) { 2179 mMaxWidth = mMinWidth = ems; 2180 mMaxWidthMode = mMinWidthMode = EMS; 2181 2182 requestLayout(); 2183 invalidate(); 2184 } 2185 2186 /** 2187 * Makes the TextView exactly this many pixels wide. 2188 * You could do the same thing by specifying this number in the 2189 * LayoutParams. 2190 * 2191 * @attr ref android.R.styleable#TextView_width 2192 */ 2193 @android.view.RemotableViewMethod 2194 public void setWidth(int pixels) { 2195 mMaxWidth = mMinWidth = pixels; 2196 mMaxWidthMode = mMinWidthMode = PIXELS; 2197 2198 requestLayout(); 2199 invalidate(); 2200 } 2201 2202 2203 /** 2204 * Sets line spacing for this TextView. Each line will have its height 2205 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2206 * 2207 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2208 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2209 */ 2210 public void setLineSpacing(float add, float mult) { 2211 mSpacingMult = mult; 2212 mSpacingAdd = add; 2213 2214 if (mLayout != null) { 2215 nullLayouts(); 2216 requestLayout(); 2217 invalidate(); 2218 } 2219 } 2220 2221 /** 2222 * Convenience method: Append the specified text to the TextView's 2223 * display buffer, upgrading it to BufferType.EDITABLE if it was 2224 * not already editable. 2225 */ 2226 public final void append(CharSequence text) { 2227 append(text, 0, text.length()); 2228 } 2229 2230 /** 2231 * Convenience method: Append the specified text slice to the TextView's 2232 * display buffer, upgrading it to BufferType.EDITABLE if it was 2233 * not already editable. 2234 */ 2235 public void append(CharSequence text, int start, int end) { 2236 if (!(mText instanceof Editable)) { 2237 setText(mText, BufferType.EDITABLE); 2238 } 2239 2240 ((Editable) mText).append(text, start, end); 2241 } 2242 2243 private void updateTextColors() { 2244 boolean inval = false; 2245 int color = mTextColor.getColorForState(getDrawableState(), 0); 2246 if (color != mCurTextColor) { 2247 mCurTextColor = color; 2248 inval = true; 2249 } 2250 if (mLinkTextColor != null) { 2251 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2252 if (color != mTextPaint.linkColor) { 2253 mTextPaint.linkColor = color; 2254 inval = true; 2255 } 2256 } 2257 if (mHintTextColor != null) { 2258 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2259 if (color != mCurHintTextColor && mText.length() == 0) { 2260 mCurHintTextColor = color; 2261 inval = true; 2262 } 2263 } 2264 if (inval) { 2265 invalidate(); 2266 } 2267 } 2268 2269 @Override 2270 protected void drawableStateChanged() { 2271 super.drawableStateChanged(); 2272 if (mTextColor != null && mTextColor.isStateful() 2273 || (mHintTextColor != null && mHintTextColor.isStateful()) 2274 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2275 updateTextColors(); 2276 } 2277 2278 final Drawables dr = mDrawables; 2279 if (dr != null) { 2280 int[] state = getDrawableState(); 2281 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2282 dr.mDrawableTop.setState(state); 2283 } 2284 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2285 dr.mDrawableBottom.setState(state); 2286 } 2287 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2288 dr.mDrawableLeft.setState(state); 2289 } 2290 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2291 dr.mDrawableRight.setState(state); 2292 } 2293 } 2294 } 2295 2296 /** 2297 * User interface state that is stored by TextView for implementing 2298 * {@link View#onSaveInstanceState}. 2299 */ 2300 public static class SavedState extends BaseSavedState { 2301 int selStart; 2302 int selEnd; 2303 CharSequence text; 2304 boolean frozenWithFocus; 2305 CharSequence error; 2306 2307 SavedState(Parcelable superState) { 2308 super(superState); 2309 } 2310 2311 @Override 2312 public void writeToParcel(Parcel out, int flags) { 2313 super.writeToParcel(out, flags); 2314 out.writeInt(selStart); 2315 out.writeInt(selEnd); 2316 out.writeInt(frozenWithFocus ? 1 : 0); 2317 TextUtils.writeToParcel(text, out, flags); 2318 2319 if (error == null) { 2320 out.writeInt(0); 2321 } else { 2322 out.writeInt(1); 2323 TextUtils.writeToParcel(error, out, flags); 2324 } 2325 } 2326 2327 @Override 2328 public String toString() { 2329 String str = "TextView.SavedState{" 2330 + Integer.toHexString(System.identityHashCode(this)) 2331 + " start=" + selStart + " end=" + selEnd; 2332 if (text != null) { 2333 str += " text=" + text; 2334 } 2335 return str + "}"; 2336 } 2337 2338 public static final Parcelable.Creator<SavedState> CREATOR 2339 = new Parcelable.Creator<SavedState>() { 2340 public SavedState createFromParcel(Parcel in) { 2341 return new SavedState(in); 2342 } 2343 2344 public SavedState[] newArray(int size) { 2345 return new SavedState[size]; 2346 } 2347 }; 2348 2349 private SavedState(Parcel in) { 2350 super(in); 2351 selStart = in.readInt(); 2352 selEnd = in.readInt(); 2353 frozenWithFocus = (in.readInt() != 0); 2354 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2355 2356 if (in.readInt() != 0) { 2357 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2358 } 2359 } 2360 } 2361 2362 @Override 2363 public Parcelable onSaveInstanceState() { 2364 Parcelable superState = super.onSaveInstanceState(); 2365 2366 // Save state if we are forced to 2367 boolean save = mFreezesText; 2368 int start = 0; 2369 int end = 0; 2370 2371 if (mText != null) { 2372 start = Selection.getSelectionStart(mText); 2373 end = Selection.getSelectionEnd(mText); 2374 if (start >= 0 || end >= 0) { 2375 // Or save state if there is a selection 2376 save = true; 2377 } 2378 } 2379 2380 if (save) { 2381 SavedState ss = new SavedState(superState); 2382 // XXX Should also save the current scroll position! 2383 ss.selStart = start; 2384 ss.selEnd = end; 2385 2386 if (mText instanceof Spanned) { 2387 /* 2388 * Calling setText() strips off any ChangeWatchers; 2389 * strip them now to avoid leaking references. 2390 * But do it to a copy so that if there are any 2391 * further changes to the text of this view, it 2392 * won't get into an inconsistent state. 2393 */ 2394 2395 Spannable sp = new SpannableString(mText); 2396 2397 for (ChangeWatcher cw : 2398 sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2399 sp.removeSpan(cw); 2400 } 2401 2402 ss.text = sp; 2403 } else { 2404 ss.text = mText.toString(); 2405 } 2406 2407 if (isFocused() && start >= 0 && end >= 0) { 2408 ss.frozenWithFocus = true; 2409 } 2410 2411 ss.error = mError; 2412 2413 return ss; 2414 } 2415 2416 return superState; 2417 } 2418 2419 @Override 2420 public void onRestoreInstanceState(Parcelable state) { 2421 if (!(state instanceof SavedState)) { 2422 super.onRestoreInstanceState(state); 2423 return; 2424 } 2425 2426 SavedState ss = (SavedState)state; 2427 super.onRestoreInstanceState(ss.getSuperState()); 2428 2429 // XXX restore buffer type too, as well as lots of other stuff 2430 if (ss.text != null) { 2431 setText(ss.text); 2432 } 2433 2434 if (ss.selStart >= 0 && ss.selEnd >= 0) { 2435 if (mText instanceof Spannable) { 2436 int len = mText.length(); 2437 2438 if (ss.selStart > len || ss.selEnd > len) { 2439 String restored = ""; 2440 2441 if (ss.text != null) { 2442 restored = "(restored) "; 2443 } 2444 2445 Log.e("TextView", "Saved cursor position " + ss.selStart + 2446 "/" + ss.selEnd + " out of range for " + restored + 2447 "text " + mText); 2448 } else { 2449 Selection.setSelection((Spannable) mText, ss.selStart, 2450 ss.selEnd); 2451 2452 if (ss.frozenWithFocus) { 2453 mFrozenWithFocus = true; 2454 } 2455 } 2456 } 2457 } 2458 2459 if (ss.error != null) { 2460 final CharSequence error = ss.error; 2461 // Display the error later, after the first layout pass 2462 post(new Runnable() { 2463 public void run() { 2464 setError(error); 2465 } 2466 }); 2467 } 2468 } 2469 2470 /** 2471 * Control whether this text view saves its entire text contents when 2472 * freezing to an icicle, in addition to dynamic state such as cursor 2473 * position. By default this is false, not saving the text. Set to true 2474 * if the text in the text view is not being saved somewhere else in 2475 * persistent storage (such as in a content provider) so that if the 2476 * view is later thawed the user will not lose their data. 2477 * 2478 * @param freezesText Controls whether a frozen icicle should include the 2479 * entire text data: true to include it, false to not. 2480 * 2481 * @attr ref android.R.styleable#TextView_freezesText 2482 */ 2483 @android.view.RemotableViewMethod 2484 public void setFreezesText(boolean freezesText) { 2485 mFreezesText = freezesText; 2486 } 2487 2488 /** 2489 * Return whether this text view is including its entire text contents 2490 * in frozen icicles. 2491 * 2492 * @return Returns true if text is included, false if it isn't. 2493 * 2494 * @see #setFreezesText 2495 */ 2496 public boolean getFreezesText() { 2497 return mFreezesText; 2498 } 2499 2500 /////////////////////////////////////////////////////////////////////////// 2501 2502 /** 2503 * Sets the Factory used to create new Editables. 2504 */ 2505 public final void setEditableFactory(Editable.Factory factory) { 2506 mEditableFactory = factory; 2507 setText(mText); 2508 } 2509 2510 /** 2511 * Sets the Factory used to create new Spannables. 2512 */ 2513 public final void setSpannableFactory(Spannable.Factory factory) { 2514 mSpannableFactory = factory; 2515 setText(mText); 2516 } 2517 2518 /** 2519 * Sets the string value of the TextView. TextView <em>does not</em> accept 2520 * HTML-like formatting, which you can do with text strings in XML resource files. 2521 * To style your strings, attach android.text.style.* objects to a 2522 * {@link android.text.SpannableString SpannableString}, or see the 2523 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 2524 * Available Resource Types</a> documentation for an example of setting 2525 * formatted text in the XML resource file. 2526 * 2527 * @attr ref android.R.styleable#TextView_text 2528 */ 2529 @android.view.RemotableViewMethod 2530 public final void setText(CharSequence text) { 2531 setText(text, mBufferType); 2532 } 2533 2534 /** 2535 * Like {@link #setText(CharSequence)}, 2536 * except that the cursor position (if any) is retained in the new text. 2537 * 2538 * @param text The new text to place in the text view. 2539 * 2540 * @see #setText(CharSequence) 2541 */ 2542 @android.view.RemotableViewMethod 2543 public final void setTextKeepState(CharSequence text) { 2544 setTextKeepState(text, mBufferType); 2545 } 2546 2547 /** 2548 * Sets the text that this TextView is to display (see 2549 * {@link #setText(CharSequence)}) and also sets whether it is stored 2550 * in a styleable/spannable buffer and whether it is editable. 2551 * 2552 * @attr ref android.R.styleable#TextView_text 2553 * @attr ref android.R.styleable#TextView_bufferType 2554 */ 2555 public void setText(CharSequence text, BufferType type) { 2556 setText(text, type, true, 0); 2557 2558 if (mCharWrapper != null) { 2559 mCharWrapper.mChars = null; 2560 } 2561 } 2562 2563 private void setText(CharSequence text, BufferType type, 2564 boolean notifyBefore, int oldlen) { 2565 if (text == null) { 2566 text = ""; 2567 } 2568 2569 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 2570 2571 if (text instanceof Spanned && 2572 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 2573 setHorizontalFadingEdgeEnabled(true); 2574 setEllipsize(TextUtils.TruncateAt.MARQUEE); 2575 } 2576 2577 int n = mFilters.length; 2578 for (int i = 0; i < n; i++) { 2579 CharSequence out = mFilters[i].filter(text, 0, text.length(), 2580 EMPTY_SPANNED, 0, 0); 2581 if (out != null) { 2582 text = out; 2583 } 2584 } 2585 2586 if (notifyBefore) { 2587 if (mText != null) { 2588 oldlen = mText.length(); 2589 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 2590 } else { 2591 sendBeforeTextChanged("", 0, 0, text.length()); 2592 } 2593 } 2594 2595 boolean needEditableForNotification = false; 2596 2597 if (mListeners != null && mListeners.size() != 0) { 2598 needEditableForNotification = true; 2599 } 2600 2601 if (type == BufferType.EDITABLE || mInput != null || 2602 needEditableForNotification) { 2603 Editable t = mEditableFactory.newEditable(text); 2604 text = t; 2605 setFilters(t, mFilters); 2606 InputMethodManager imm = InputMethodManager.peekInstance(); 2607 if (imm != null) imm.restartInput(this); 2608 } else if (type == BufferType.SPANNABLE || mMovement != null) { 2609 text = mSpannableFactory.newSpannable(text); 2610 } else if (!(text instanceof CharWrapper)) { 2611 text = TextUtils.stringOrSpannedString(text); 2612 } 2613 2614 if (mAutoLinkMask != 0) { 2615 Spannable s2; 2616 2617 if (type == BufferType.EDITABLE || text instanceof Spannable) { 2618 s2 = (Spannable) text; 2619 } else { 2620 s2 = mSpannableFactory.newSpannable(text); 2621 } 2622 2623 if (Linkify.addLinks(s2, mAutoLinkMask)) { 2624 text = s2; 2625 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 2626 2627 /* 2628 * We must go ahead and set the text before changing the 2629 * movement method, because setMovementMethod() may call 2630 * setText() again to try to upgrade the buffer type. 2631 */ 2632 mText = text; 2633 2634 if (mLinksClickable) { 2635 setMovementMethod(LinkMovementMethod.getInstance()); 2636 } 2637 } 2638 } 2639 2640 mBufferType = type; 2641 mText = text; 2642 2643 if (mTransformation == null) 2644 mTransformed = text; 2645 else 2646 mTransformed = mTransformation.getTransformation(text, this); 2647 2648 final int textLength = text.length(); 2649 2650 if (text instanceof Spannable) { 2651 Spannable sp = (Spannable) text; 2652 2653 // Remove any ChangeWatchers that might have come 2654 // from other TextViews. 2655 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 2656 final int count = watchers.length; 2657 for (int i = 0; i < count; i++) 2658 sp.removeSpan(watchers[i]); 2659 2660 if (mChangeWatcher == null) 2661 mChangeWatcher = new ChangeWatcher(); 2662 2663 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 2664 (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 2665 2666 if (mInput != null) { 2667 sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2668 } 2669 2670 if (mTransformation != null) { 2671 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2672 2673 } 2674 2675 if (mMovement != null) { 2676 mMovement.initialize(this, (Spannable) text); 2677 2678 /* 2679 * Initializing the movement method will have set the 2680 * selection, so reset mSelectionMoved to keep that from 2681 * interfering with the normal on-focus selection-setting. 2682 */ 2683 mSelectionMoved = false; 2684 } 2685 } 2686 2687 if (mLayout != null) { 2688 checkForRelayout(); 2689 } 2690 2691 sendOnTextChanged(text, 0, oldlen, textLength); 2692 onTextChanged(text, 0, oldlen, textLength); 2693 2694 if (needEditableForNotification) { 2695 sendAfterTextChanged((Editable) text); 2696 } 2697 } 2698 2699 /** 2700 * Sets the TextView to display the specified slice of the specified 2701 * char array. You must promise that you will not change the contents 2702 * of the array except for right before another call to setText(), 2703 * since the TextView has no way to know that the text 2704 * has changed and that it needs to invalidate and re-layout. 2705 */ 2706 public final void setText(char[] text, int start, int len) { 2707 int oldlen = 0; 2708 2709 if (start < 0 || len < 0 || start + len > text.length) { 2710 throw new IndexOutOfBoundsException(start + ", " + len); 2711 } 2712 2713 /* 2714 * We must do the before-notification here ourselves because if 2715 * the old text is a CharWrapper we destroy it before calling 2716 * into the normal path. 2717 */ 2718 if (mText != null) { 2719 oldlen = mText.length(); 2720 sendBeforeTextChanged(mText, 0, oldlen, len); 2721 } else { 2722 sendBeforeTextChanged("", 0, 0, len); 2723 } 2724 2725 if (mCharWrapper == null) { 2726 mCharWrapper = new CharWrapper(text, start, len); 2727 } else { 2728 mCharWrapper.set(text, start, len); 2729 } 2730 2731 setText(mCharWrapper, mBufferType, false, oldlen); 2732 } 2733 2734 private static class CharWrapper 2735 implements CharSequence, GetChars, GraphicsOperations { 2736 private char[] mChars; 2737 private int mStart, mLength; 2738 2739 public CharWrapper(char[] chars, int start, int len) { 2740 mChars = chars; 2741 mStart = start; 2742 mLength = len; 2743 } 2744 2745 /* package */ void set(char[] chars, int start, int len) { 2746 mChars = chars; 2747 mStart = start; 2748 mLength = len; 2749 } 2750 2751 public int length() { 2752 return mLength; 2753 } 2754 2755 public char charAt(int off) { 2756 return mChars[off + mStart]; 2757 } 2758 2759 public String toString() { 2760 return new String(mChars, mStart, mLength); 2761 } 2762 2763 public CharSequence subSequence(int start, int end) { 2764 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2765 throw new IndexOutOfBoundsException(start + ", " + end); 2766 } 2767 2768 return new String(mChars, start + mStart, end - start); 2769 } 2770 2771 public void getChars(int start, int end, char[] buf, int off) { 2772 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2773 throw new IndexOutOfBoundsException(start + ", " + end); 2774 } 2775 2776 System.arraycopy(mChars, start + mStart, buf, off, end - start); 2777 } 2778 2779 public void drawText(Canvas c, int start, int end, 2780 float x, float y, Paint p) { 2781 c.drawText(mChars, start + mStart, end - start, x, y, p); 2782 } 2783 2784 public float measureText(int start, int end, Paint p) { 2785 return p.measureText(mChars, start + mStart, end - start); 2786 } 2787 2788 public int getTextWidths(int start, int end, float[] widths, Paint p) { 2789 return p.getTextWidths(mChars, start + mStart, end - start, widths); 2790 } 2791 } 2792 2793 /** 2794 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 2795 * except that the cursor position (if any) is retained in the new text. 2796 * 2797 * @see #setText(CharSequence, android.widget.TextView.BufferType) 2798 */ 2799 public final void setTextKeepState(CharSequence text, BufferType type) { 2800 int start = getSelectionStart(); 2801 int end = getSelectionEnd(); 2802 int len = text.length(); 2803 2804 setText(text, type); 2805 2806 if (start >= 0 || end >= 0) { 2807 if (mText instanceof Spannable) { 2808 Selection.setSelection((Spannable) mText, 2809 Math.max(0, Math.min(start, len)), 2810 Math.max(0, Math.min(end, len))); 2811 } 2812 } 2813 } 2814 2815 @android.view.RemotableViewMethod 2816 public final void setText(int resid) { 2817 setText(getContext().getResources().getText(resid)); 2818 } 2819 2820 public final void setText(int resid, BufferType type) { 2821 setText(getContext().getResources().getText(resid), type); 2822 } 2823 2824 /** 2825 * Sets the text to be displayed when the text of the TextView is empty. 2826 * Null means to use the normal empty text. The hint does not currently 2827 * participate in determining the size of the view. 2828 * 2829 * @attr ref android.R.styleable#TextView_hint 2830 */ 2831 @android.view.RemotableViewMethod 2832 public final void setHint(CharSequence hint) { 2833 mHint = TextUtils.stringOrSpannedString(hint); 2834 2835 if (mLayout != null) { 2836 checkForRelayout(); 2837 } 2838 2839 if (mText.length() == 0) { 2840 invalidate(); 2841 } 2842 } 2843 2844 /** 2845 * Sets the text to be displayed when the text of the TextView is empty, 2846 * from a resource. 2847 * 2848 * @attr ref android.R.styleable#TextView_hint 2849 */ 2850 @android.view.RemotableViewMethod 2851 public final void setHint(int resid) { 2852 setHint(getContext().getResources().getText(resid)); 2853 } 2854 2855 /** 2856 * Returns the hint that is displayed when the text of the TextView 2857 * is empty. 2858 * 2859 * @attr ref android.R.styleable#TextView_hint 2860 */ 2861 @ViewDebug.CapturedViewProperty 2862 public CharSequence getHint() { 2863 return mHint; 2864 } 2865 2866 /** 2867 * Set the type of the content with a constant as defined for 2868 * {@link EditorInfo#inputType}. This will take care of changing 2869 * the key listener, by calling {@link #setKeyListener(KeyListener)}, to 2870 * match the given content type. If the given content type is 2871 * {@link EditorInfo#TYPE_NULL} then a soft keyboard will 2872 * not be displayed for this text view. 2873 * 2874 * @see #getInputType() 2875 * @see #setRawInputType(int) 2876 * @see android.text.InputType 2877 * @attr ref android.R.styleable#TextView_inputType 2878 */ 2879 public void setInputType(int type) { 2880 final boolean wasPassword = isPasswordInputType(mInputType); 2881 final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType); 2882 setInputType(type, false); 2883 final boolean isPassword = isPasswordInputType(type); 2884 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 2885 boolean forceUpdate = false; 2886 if (isPassword) { 2887 setTransformationMethod(PasswordTransformationMethod.getInstance()); 2888 setTypefaceByIndex(MONOSPACE, 0); 2889 } else if (isVisiblePassword) { 2890 if (mTransformation == PasswordTransformationMethod.getInstance()) { 2891 forceUpdate = true; 2892 } 2893 setTypefaceByIndex(MONOSPACE, 0); 2894 } else if (wasPassword || wasVisiblePassword) { 2895 // not in password mode, clean up typeface and transformation 2896 setTypefaceByIndex(-1, -1); 2897 if (mTransformation == PasswordTransformationMethod.getInstance()) { 2898 forceUpdate = true; 2899 } 2900 } 2901 2902 boolean multiLine = (type&(EditorInfo.TYPE_MASK_CLASS 2903 | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 2904 (EditorInfo.TYPE_CLASS_TEXT 2905 | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 2906 2907 // We need to update the single line mode if it has changed or we 2908 // were previously in password mode. 2909 if (mSingleLine == multiLine || forceUpdate) { 2910 // Change single line mode, but only change the transformation if 2911 // we are not in password mode. 2912 applySingleLine(!multiLine, !isPassword); 2913 } 2914 2915 InputMethodManager imm = InputMethodManager.peekInstance(); 2916 if (imm != null) imm.restartInput(this); 2917 } 2918 2919 private boolean isPasswordInputType(int inputType) { 2920 final int variation = inputType & (EditorInfo.TYPE_MASK_CLASS 2921 | EditorInfo.TYPE_MASK_VARIATION); 2922 return variation 2923 == (EditorInfo.TYPE_CLASS_TEXT 2924 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 2925 } 2926 2927 private boolean isVisiblePasswordInputType(int inputType) { 2928 final int variation = inputType & (EditorInfo.TYPE_MASK_CLASS 2929 | EditorInfo.TYPE_MASK_VARIATION); 2930 return variation 2931 == (EditorInfo.TYPE_CLASS_TEXT 2932 | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 2933 } 2934 2935 /** 2936 * Directly change the content type integer of the text view, without 2937 * modifying any other state. 2938 * @see #setInputType(int) 2939 * @see android.text.InputType 2940 * @attr ref android.R.styleable#TextView_inputType 2941 */ 2942 public void setRawInputType(int type) { 2943 mInputType = type; 2944 } 2945 2946 private void setInputType(int type, boolean direct) { 2947 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 2948 KeyListener input; 2949 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 2950 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) 2951 != 0; 2952 TextKeyListener.Capitalize cap; 2953 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 2954 cap = TextKeyListener.Capitalize.CHARACTERS; 2955 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 2956 cap = TextKeyListener.Capitalize.WORDS; 2957 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 2958 cap = TextKeyListener.Capitalize.SENTENCES; 2959 } else { 2960 cap = TextKeyListener.Capitalize.NONE; 2961 } 2962 input = TextKeyListener.getInstance(autotext, cap); 2963 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 2964 input = DigitsKeyListener.getInstance( 2965 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 2966 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 2967 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 2968 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 2969 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 2970 input = DateKeyListener.getInstance(); 2971 break; 2972 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 2973 input = TimeKeyListener.getInstance(); 2974 break; 2975 default: 2976 input = DateTimeKeyListener.getInstance(); 2977 break; 2978 } 2979 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 2980 input = DialerKeyListener.getInstance(); 2981 } else { 2982 input = TextKeyListener.getInstance(); 2983 } 2984 mInputType = type; 2985 if (direct) mInput = input; 2986 else { 2987 setKeyListenerOnly(input); 2988 } 2989 } 2990 2991 /** 2992 * Get the type of the content. 2993 * 2994 * @see #setInputType(int) 2995 * @see android.text.InputType 2996 */ 2997 public int getInputType() { 2998 return mInputType; 2999 } 3000 3001 /** 3002 * Change the editor type integer associated with the text view, which 3003 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3004 * has focus. 3005 * @see #getImeOptions 3006 * @see android.view.inputmethod.EditorInfo 3007 * @attr ref android.R.styleable#TextView_imeOptions 3008 */ 3009 public void setImeOptions(int imeOptions) { 3010 if (mInputContentType == null) { 3011 mInputContentType = new InputContentType(); 3012 } 3013 mInputContentType.imeOptions = imeOptions; 3014 } 3015 3016 /** 3017 * Get the type of the IME editor. 3018 * 3019 * @see #setImeOptions(int) 3020 * @see android.view.inputmethod.EditorInfo 3021 */ 3022 public int getImeOptions() { 3023 return mInputContentType != null 3024 ? mInputContentType.imeOptions : EditorInfo.IME_NULL; 3025 } 3026 3027 /** 3028 * Change the custom IME action associated with the text view, which 3029 * will be reported to an IME with {@link EditorInfo#actionLabel} 3030 * and {@link EditorInfo#actionId} when it has focus. 3031 * @see #getImeActionLabel 3032 * @see #getImeActionId 3033 * @see android.view.inputmethod.EditorInfo 3034 * @attr ref android.R.styleable#TextView_imeActionLabel 3035 * @attr ref android.R.styleable#TextView_imeActionId 3036 */ 3037 public void setImeActionLabel(CharSequence label, int actionId) { 3038 if (mInputContentType == null) { 3039 mInputContentType = new InputContentType(); 3040 } 3041 mInputContentType.imeActionLabel = label; 3042 mInputContentType.imeActionId = actionId; 3043 } 3044 3045 /** 3046 * Get the IME action label previous set with {@link #setImeActionLabel}. 3047 * 3048 * @see #setImeActionLabel 3049 * @see android.view.inputmethod.EditorInfo 3050 */ 3051 public CharSequence getImeActionLabel() { 3052 return mInputContentType != null 3053 ? mInputContentType.imeActionLabel : null; 3054 } 3055 3056 /** 3057 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3058 * 3059 * @see #setImeActionLabel 3060 * @see android.view.inputmethod.EditorInfo 3061 */ 3062 public int getImeActionId() { 3063 return mInputContentType != null 3064 ? mInputContentType.imeActionId : 0; 3065 } 3066 3067 /** 3068 * Set a special listener to be called when an action is performed 3069 * on the text view. This will be called when the enter key is pressed, 3070 * or when an action supplied to the IME is selected by the user. Setting 3071 * this means that the normal hard key event will not insert a newline 3072 * into the text view, even if it is multi-line; holding down the ALT 3073 * modifier will, however, allow the user to insert a newline character. 3074 */ 3075 public void setOnEditorActionListener(OnEditorActionListener l) { 3076 if (mInputContentType == null) { 3077 mInputContentType = new InputContentType(); 3078 } 3079 mInputContentType.onEditorActionListener = l; 3080 } 3081 3082 /** 3083 * Called when an attached input method calls 3084 * {@link InputConnection#performEditorAction(int) 3085 * InputConnection.performEditorAction()} 3086 * for this text view. The default implementation will call your action 3087 * listener supplied to {@link #setOnEditorActionListener}, or perform 3088 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3089 * EditorInfo.IME_ACTION_NEXT} or {@link EditorInfo#IME_ACTION_DONE 3090 * EditorInfo.IME_ACTION_DONE}. 3091 * 3092 * <p>For backwards compatibility, if no IME options have been set and the 3093 * text view would not normally advance focus on enter, then 3094 * the NEXT and DONE actions received here will be turned into an enter 3095 * key down/up pair to go through the normal key handling. 3096 * 3097 * @param actionCode The code of the action being performed. 3098 * 3099 * @see #setOnEditorActionListener 3100 */ 3101 public void onEditorAction(int actionCode) { 3102 final InputContentType ict = mInputContentType; 3103 if (ict != null) { 3104 if (ict.onEditorActionListener != null) { 3105 if (ict.onEditorActionListener.onEditorAction(this, 3106 actionCode, null)) { 3107 return; 3108 } 3109 } 3110 3111 // This is the handling for some default action. 3112 // Note that for backwards compatibility we don't do this 3113 // default handling if explicit ime options have not been given, 3114 // instead turning this into the normal enter key codes that an 3115 // app may be expecting. 3116 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3117 View v = focusSearch(FOCUS_DOWN); 3118 if (v != null) { 3119 if (!v.requestFocus(FOCUS_DOWN)) { 3120 throw new IllegalStateException("focus search returned a view " + 3121 "that wasn't able to take focus!"); 3122 } 3123 } 3124 return; 3125 3126 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3127 InputMethodManager imm = InputMethodManager.peekInstance(); 3128 if (imm != null) { 3129 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3130 } 3131 return; 3132 } 3133 } 3134 3135 Handler h = getHandler(); 3136 if (h != null) { 3137 long eventTime = SystemClock.uptimeMillis(); 3138 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3139 new KeyEvent(eventTime, eventTime, 3140 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 0, 0, 3141 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3142 | KeyEvent.FLAG_EDITOR_ACTION))); 3143 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3144 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3145 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 0, 0, 3146 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3147 | KeyEvent.FLAG_EDITOR_ACTION))); 3148 } 3149 } 3150 3151 /** 3152 * Set the private content type of the text, which is the 3153 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3154 * field that will be filled in when creating an input connection. 3155 * 3156 * @see #getPrivateImeOptions() 3157 * @see EditorInfo#privateImeOptions 3158 * @attr ref android.R.styleable#TextView_privateImeOptions 3159 */ 3160 public void setPrivateImeOptions(String type) { 3161 if (mInputContentType == null) mInputContentType = new InputContentType(); 3162 mInputContentType.privateImeOptions = type; 3163 } 3164 3165 /** 3166 * Get the private type of the content. 3167 * 3168 * @see #setPrivateImeOptions(String) 3169 * @see EditorInfo#privateImeOptions 3170 */ 3171 public String getPrivateImeOptions() { 3172 return mInputContentType != null 3173 ? mInputContentType.privateImeOptions : null; 3174 } 3175 3176 /** 3177 * Set the extra input data of the text, which is the 3178 * {@link EditorInfo#extras TextBoxAttribute.extras} 3179 * Bundle that will be filled in when creating an input connection. The 3180 * given integer is the resource ID of an XML resource holding an 3181 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3182 * 3183 * @see #getInputExtras(boolean) 3184 * @see EditorInfo#extras 3185 * @attr ref android.R.styleable#TextView_editorExtras 3186 */ 3187 public void setInputExtras(int xmlResId) 3188 throws XmlPullParserException, IOException { 3189 XmlResourceParser parser = getResources().getXml(xmlResId); 3190 if (mInputContentType == null) mInputContentType = new InputContentType(); 3191 mInputContentType.extras = new Bundle(); 3192 getResources().parseBundleExtras(parser, mInputContentType.extras); 3193 } 3194 3195 /** 3196 * Retrieve the input extras currently associated with the text view, which 3197 * can be viewed as well as modified. 3198 * 3199 * @param create If true, the extras will be created if they don't already 3200 * exist. Otherwise, null will be returned if none have been created. 3201 * @see #setInputExtras(int)View 3202 * @see EditorInfo#extras 3203 * @attr ref android.R.styleable#TextView_editorExtras 3204 */ 3205 public Bundle getInputExtras(boolean create) { 3206 if (mInputContentType == null) { 3207 if (!create) return null; 3208 mInputContentType = new InputContentType(); 3209 } 3210 if (mInputContentType.extras == null) { 3211 if (!create) return null; 3212 mInputContentType.extras = new Bundle(); 3213 } 3214 return mInputContentType.extras; 3215 } 3216 3217 /** 3218 * Returns the error message that was set to be displayed with 3219 * {@link #setError}, or <code>null</code> if no error was set 3220 * or if it the error was cleared by the widget after user input. 3221 */ 3222 public CharSequence getError() { 3223 return mError; 3224 } 3225 3226 /** 3227 * Sets the right-hand compound drawable of the TextView to the "error" 3228 * icon and sets an error message that will be displayed in a popup when 3229 * the TextView has focus. The icon and error message will be reset to 3230 * null when any key events cause changes to the TextView's text. If the 3231 * <code>error</code> is <code>null</code>, the error message and icon 3232 * will be cleared. 3233 */ 3234 @android.view.RemotableViewMethod 3235 public void setError(CharSequence error) { 3236 if (error == null) { 3237 setError(null, null); 3238 } else { 3239 Drawable dr = getContext().getResources(). 3240 getDrawable(com.android.internal.R.drawable. 3241 indicator_input_error); 3242 3243 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3244 setError(error, dr); 3245 } 3246 } 3247 3248 /** 3249 * Sets the right-hand compound drawable of the TextView to the specified 3250 * icon and sets an error message that will be displayed in a popup when 3251 * the TextView has focus. The icon and error message will be reset to 3252 * null when any key events cause changes to the TextView's text. The 3253 * drawable must already have had {@link Drawable#setBounds} set on it. 3254 * If the <code>error</code> is <code>null</code>, the error message will 3255 * be cleared (and you should provide a <code>null</code> icon as well). 3256 */ 3257 public void setError(CharSequence error, Drawable icon) { 3258 error = TextUtils.stringOrSpannedString(error); 3259 3260 mError = error; 3261 mErrorWasChanged = true; 3262 final Drawables dr = mDrawables; 3263 if (dr != null) { 3264 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, 3265 icon, dr.mDrawableBottom); 3266 } else { 3267 setCompoundDrawables(null, null, icon, null); 3268 } 3269 3270 if (error == null) { 3271 if (mPopup != null) { 3272 if (mPopup.isShowing()) { 3273 mPopup.dismiss(); 3274 } 3275 3276 mPopup = null; 3277 } 3278 } else { 3279 if (isFocused()) { 3280 showError(); 3281 } 3282 } 3283 } 3284 3285 private void showError() { 3286 if (getWindowToken() == null) { 3287 mShowErrorAfterAttach = true; 3288 return; 3289 } 3290 3291 if (mPopup == null) { 3292 LayoutInflater inflater = LayoutInflater.from(getContext()); 3293 final TextView err = (TextView) inflater.inflate(com.android.internal.R.layout.textview_hint, 3294 null); 3295 3296 final float scale = getResources().getDisplayMetrics().density; 3297 mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), 3298 (int) (50 * scale + 0.5f)); 3299 mPopup.setFocusable(false); 3300 // The user is entering text, so the input method is needed. We 3301 // don't want the popup to be displayed on top of it. 3302 mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 3303 } 3304 3305 TextView tv = (TextView) mPopup.getContentView(); 3306 chooseSize(mPopup, mError, tv); 3307 tv.setText(mError); 3308 3309 mPopup.showAsDropDown(this, getErrorX(), getErrorY()); 3310 mPopup.fixDirection(mPopup.isAboveAnchor()); 3311 } 3312 3313 private static class ErrorPopup extends PopupWindow { 3314 private boolean mAbove = false; 3315 private TextView mView; 3316 3317 ErrorPopup(TextView v, int width, int height) { 3318 super(v, width, height); 3319 mView = v; 3320 } 3321 3322 void fixDirection(boolean above) { 3323 mAbove = above; 3324 3325 if (above) { 3326 mView.setBackgroundResource(com.android.internal.R.drawable.popup_inline_error_above); 3327 } else { 3328 mView.setBackgroundResource(com.android.internal.R.drawable.popup_inline_error); 3329 } 3330 } 3331 3332 @Override 3333 public void update(int x, int y, int w, int h, boolean force) { 3334 super.update(x, y, w, h, force); 3335 3336 boolean above = isAboveAnchor(); 3337 if (above != mAbove) { 3338 fixDirection(above); 3339 } 3340 } 3341 } 3342 3343 /** 3344 * Returns the Y offset to make the pointy top of the error point 3345 * at the middle of the error icon. 3346 */ 3347 private int getErrorX() { 3348 /* 3349 * The "25" is the distance between the point and the right edge 3350 * of the background 3351 */ 3352 final float scale = getResources().getDisplayMetrics().density; 3353 3354 final Drawables dr = mDrawables; 3355 return getWidth() - mPopup.getWidth() 3356 - getPaddingRight() 3357 - (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 3358 } 3359 3360 /** 3361 * Returns the Y offset to make the pointy top of the error point 3362 * at the bottom of the error icon. 3363 */ 3364 private int getErrorY() { 3365 /* 3366 * Compound, not extended, because the icon is not clipped 3367 * if the text height is smaller. 3368 */ 3369 int vspace = mBottom - mTop - 3370 getCompoundPaddingBottom() - getCompoundPaddingTop(); 3371 3372 final Drawables dr = mDrawables; 3373 int icontop = getCompoundPaddingTop() 3374 + (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 3375 3376 /* 3377 * The "2" is the distance between the point and the top edge 3378 * of the background. 3379 */ 3380 3381 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) 3382 - getHeight() - 2; 3383 } 3384 3385 private void hideError() { 3386 if (mPopup != null) { 3387 if (mPopup.isShowing()) { 3388 mPopup.dismiss(); 3389 } 3390 } 3391 3392 mShowErrorAfterAttach = false; 3393 } 3394 3395 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 3396 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 3397 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 3398 3399 /* 3400 * Figure out how big the text would be if we laid it out to the 3401 * full width of this view minus the border. 3402 */ 3403 int cap = getWidth() - wid; 3404 if (cap < 0) { 3405 cap = 200; // We must not be measured yet -- setFrame() will fix it. 3406 } 3407 3408 Layout l = new StaticLayout(text, tv.getPaint(), cap, 3409 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 3410 float max = 0; 3411 for (int i = 0; i < l.getLineCount(); i++) { 3412 max = Math.max(max, l.getLineWidth(i)); 3413 } 3414 3415 /* 3416 * Now set the popup size to be big enough for the text plus the border. 3417 */ 3418 pop.setWidth(wid + (int) Math.ceil(max)); 3419 pop.setHeight(ht + l.getHeight()); 3420 } 3421 3422 3423 @Override 3424 protected boolean setFrame(int l, int t, int r, int b) { 3425 boolean result = super.setFrame(l, t, r, b); 3426 3427 if (mPopup != null) { 3428 TextView tv = (TextView) mPopup.getContentView(); 3429 chooseSize(mPopup, mError, tv); 3430 mPopup.update(this, getErrorX(), getErrorY(), 3431 mPopup.getWidth(), mPopup.getHeight()); 3432 } 3433 3434 restartMarqueeIfNeeded(); 3435 3436 return result; 3437 } 3438 3439 private void restartMarqueeIfNeeded() { 3440 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 3441 mRestartMarquee = false; 3442 startMarquee(); 3443 } 3444 } 3445 3446 /** 3447 * Sets the list of input filters that will be used if the buffer is 3448 * Editable. Has no effect otherwise. 3449 * 3450 * @attr ref android.R.styleable#TextView_maxLength 3451 */ 3452 public void setFilters(InputFilter[] filters) { 3453 if (filters == null) { 3454 throw new IllegalArgumentException(); 3455 } 3456 3457 mFilters = filters; 3458 3459 if (mText instanceof Editable) { 3460 setFilters((Editable) mText, filters); 3461 } 3462 } 3463 3464 /** 3465 * Sets the list of input filters on the specified Editable, 3466 * and includes mInput in the list if it is an InputFilter. 3467 */ 3468 private void setFilters(Editable e, InputFilter[] filters) { 3469 if (mInput instanceof InputFilter) { 3470 InputFilter[] nf = new InputFilter[filters.length + 1]; 3471 3472 System.arraycopy(filters, 0, nf, 0, filters.length); 3473 nf[filters.length] = (InputFilter) mInput; 3474 3475 e.setFilters(nf); 3476 } else { 3477 e.setFilters(filters); 3478 } 3479 } 3480 3481 /** 3482 * Returns the current list of input filters. 3483 */ 3484 public InputFilter[] getFilters() { 3485 return mFilters; 3486 } 3487 3488 ///////////////////////////////////////////////////////////////////////// 3489 3490 private int getVerticalOffset(boolean forceNormal) { 3491 int voffset = 0; 3492 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3493 3494 Layout l = mLayout; 3495 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3496 l = mHintLayout; 3497 } 3498 3499 if (gravity != Gravity.TOP) { 3500 int boxht; 3501 3502 if (l == mHintLayout) { 3503 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3504 getCompoundPaddingBottom(); 3505 } else { 3506 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3507 getExtendedPaddingBottom(); 3508 } 3509 int textht = l.getHeight(); 3510 3511 if (textht < boxht) { 3512 if (gravity == Gravity.BOTTOM) 3513 voffset = boxht - textht; 3514 else // (gravity == Gravity.CENTER_VERTICAL) 3515 voffset = (boxht - textht) >> 1; 3516 } 3517 } 3518 return voffset; 3519 } 3520 3521 private int getBottomVerticalOffset(boolean forceNormal) { 3522 int voffset = 0; 3523 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3524 3525 Layout l = mLayout; 3526 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3527 l = mHintLayout; 3528 } 3529 3530 if (gravity != Gravity.BOTTOM) { 3531 int boxht; 3532 3533 if (l == mHintLayout) { 3534 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3535 getCompoundPaddingBottom(); 3536 } else { 3537 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3538 getExtendedPaddingBottom(); 3539 } 3540 int textht = l.getHeight(); 3541 3542 if (textht < boxht) { 3543 if (gravity == Gravity.TOP) 3544 voffset = boxht - textht; 3545 else // (gravity == Gravity.CENTER_VERTICAL) 3546 voffset = (boxht - textht) >> 1; 3547 } 3548 } 3549 return voffset; 3550 } 3551 3552 private void invalidateCursorPath() { 3553 if (mHighlightPathBogus) { 3554 invalidateCursor(); 3555 } else { 3556 synchronized (sTempRect) { 3557 /* 3558 * The reason for this concern about the thickness of the 3559 * cursor and doing the floor/ceil on the coordinates is that 3560 * some EditTexts (notably textfields in the Browser) have 3561 * anti-aliased text where not all the characters are 3562 * necessarily at integer-multiple locations. This should 3563 * make sure the entire cursor gets invalidated instead of 3564 * sometimes missing half a pixel. 3565 */ 3566 3567 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 3568 if (thick < 1.0f) { 3569 thick = 1.0f; 3570 } 3571 3572 thick /= 2; 3573 3574 mHighlightPath.computeBounds(sTempRect, false); 3575 3576 int left = getCompoundPaddingLeft(); 3577 int top = getExtendedPaddingTop() + getVerticalOffset(true); 3578 3579 invalidate((int) FloatMath.floor(left + sTempRect.left - thick), 3580 (int) FloatMath.floor(top + sTempRect.top - thick), 3581 (int) FloatMath.ceil(left + sTempRect.right + thick), 3582 (int) FloatMath.ceil(top + sTempRect.bottom + thick)); 3583 } 3584 } 3585 } 3586 3587 private void invalidateCursor() { 3588 int where = Selection.getSelectionEnd(mText); 3589 3590 invalidateCursor(where, where, where); 3591 } 3592 3593 private void invalidateCursor(int a, int b, int c) { 3594 if (mLayout == null) { 3595 invalidate(); 3596 } else { 3597 if (a >= 0 || b >= 0 || c >= 0) { 3598 int first = Math.min(Math.min(a, b), c); 3599 int last = Math.max(Math.max(a, b), c); 3600 3601 int line = mLayout.getLineForOffset(first); 3602 int top = mLayout.getLineTop(line); 3603 3604 // This is ridiculous, but the descent from the line above 3605 // can hang down into the line we really want to redraw, 3606 // so we have to invalidate part of the line above to make 3607 // sure everything that needs to be redrawn really is. 3608 // (But not the whole line above, because that would cause 3609 // the same problem with the descenders on the line above it!) 3610 if (line > 0) { 3611 top -= mLayout.getLineDescent(line - 1); 3612 } 3613 3614 int line2; 3615 3616 if (first == last) 3617 line2 = line; 3618 else 3619 line2 = mLayout.getLineForOffset(last); 3620 3621 int bottom = mLayout.getLineTop(line2 + 1); 3622 int voffset = getVerticalOffset(true); 3623 3624 int left = getCompoundPaddingLeft() + mScrollX; 3625 invalidate(left, top + voffset + getExtendedPaddingTop(), 3626 left + getWidth() - getCompoundPaddingLeft() - 3627 getCompoundPaddingRight(), 3628 bottom + voffset + getExtendedPaddingTop()); 3629 } 3630 } 3631 } 3632 3633 private void registerForPreDraw() { 3634 final ViewTreeObserver observer = getViewTreeObserver(); 3635 if (observer == null) { 3636 return; 3637 } 3638 3639 if (mPreDrawState == PREDRAW_NOT_REGISTERED) { 3640 observer.addOnPreDrawListener(this); 3641 mPreDrawState = PREDRAW_PENDING; 3642 } else if (mPreDrawState == PREDRAW_DONE) { 3643 mPreDrawState = PREDRAW_PENDING; 3644 } 3645 3646 // else state is PREDRAW_PENDING, so keep waiting. 3647 } 3648 3649 /** 3650 * {@inheritDoc} 3651 */ 3652 public boolean onPreDraw() { 3653 if (mPreDrawState != PREDRAW_PENDING) { 3654 return true; 3655 } 3656 3657 if (mLayout == null) { 3658 assumeLayout(); 3659 } 3660 3661 boolean changed = false; 3662 3663 if (mMovement != null) { 3664 int curs = Selection.getSelectionEnd(mText); 3665 3666 /* 3667 * TODO: This should really only keep the end in view if 3668 * it already was before the text changed. I'm not sure 3669 * of a good way to tell from here if it was. 3670 */ 3671 if (curs < 0 && 3672 (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 3673 curs = mText.length(); 3674 } 3675 3676 if (curs >= 0) { 3677 changed = bringPointIntoView(curs); 3678 } 3679 } else { 3680 changed = bringTextIntoView(); 3681 } 3682 3683 mPreDrawState = PREDRAW_DONE; 3684 return !changed; 3685 } 3686 3687 @Override 3688 protected void onAttachedToWindow() { 3689 super.onAttachedToWindow(); 3690 3691 mTemporaryDetach = false; 3692 3693 if (mShowErrorAfterAttach) { 3694 showError(); 3695 mShowErrorAfterAttach = false; 3696 } 3697 } 3698 3699 @Override 3700 protected void onDetachedFromWindow() { 3701 super.onDetachedFromWindow(); 3702 3703 if (mPreDrawState != PREDRAW_NOT_REGISTERED) { 3704 final ViewTreeObserver observer = getViewTreeObserver(); 3705 if (observer != null) { 3706 observer.removeOnPreDrawListener(this); 3707 mPreDrawState = PREDRAW_NOT_REGISTERED; 3708 } 3709 } 3710 3711 if (mError != null) { 3712 hideError(); 3713 } 3714 } 3715 3716 @Override 3717 protected boolean isPaddingOffsetRequired() { 3718 return mShadowRadius != 0 || mDrawables != null; 3719 } 3720 3721 @Override 3722 protected int getLeftPaddingOffset() { 3723 return getCompoundPaddingLeft() - mPaddingLeft + 3724 (int) Math.min(0, mShadowDx - mShadowRadius); 3725 } 3726 3727 @Override 3728 protected int getTopPaddingOffset() { 3729 return (int) Math.min(0, mShadowDy - mShadowRadius); 3730 } 3731 3732 @Override 3733 protected int getBottomPaddingOffset() { 3734 return (int) Math.max(0, mShadowDy + mShadowRadius); 3735 } 3736 3737 @Override 3738 protected int getRightPaddingOffset() { 3739 return -(getCompoundPaddingRight() - mPaddingRight) + 3740 (int) Math.max(0, mShadowDx + mShadowRadius); 3741 } 3742 3743 @Override 3744 protected boolean verifyDrawable(Drawable who) { 3745 final boolean verified = super.verifyDrawable(who); 3746 if (!verified && mDrawables != null) { 3747 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 3748 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom; 3749 } 3750 return verified; 3751 } 3752 3753 @Override 3754 public void invalidateDrawable(Drawable drawable) { 3755 if (verifyDrawable(drawable)) { 3756 final Rect dirty = drawable.getBounds(); 3757 int scrollX = mScrollX; 3758 int scrollY = mScrollY; 3759 3760 // IMPORTANT: The coordinates below are based on the coordinates computed 3761 // for each compound drawable in onDraw(). Make sure to update each section 3762 // accordingly. 3763 final TextView.Drawables drawables = mDrawables; 3764 if (drawables != null) { 3765 if (drawable == drawables.mDrawableLeft) { 3766 final int compoundPaddingTop = getCompoundPaddingTop(); 3767 final int compoundPaddingBottom = getCompoundPaddingBottom(); 3768 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 3769 3770 scrollX += mPaddingLeft; 3771 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 3772 } else if (drawable == drawables.mDrawableRight) { 3773 final int compoundPaddingTop = getCompoundPaddingTop(); 3774 final int compoundPaddingBottom = getCompoundPaddingBottom(); 3775 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 3776 3777 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 3778 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 3779 } else if (drawable == drawables.mDrawableTop) { 3780 final int compoundPaddingLeft = getCompoundPaddingLeft(); 3781 final int compoundPaddingRight = getCompoundPaddingRight(); 3782 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 3783 3784 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 3785 scrollY += mPaddingTop; 3786 } else if (drawable == drawables.mDrawableBottom) { 3787 final int compoundPaddingLeft = getCompoundPaddingLeft(); 3788 final int compoundPaddingRight = getCompoundPaddingRight(); 3789 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 3790 3791 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 3792 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 3793 } 3794 } 3795 3796 invalidate(dirty.left + scrollX, dirty.top + scrollY, 3797 dirty.right + scrollX, dirty.bottom + scrollY); 3798 } 3799 } 3800 3801 @Override 3802 protected void onDraw(Canvas canvas) { 3803 restartMarqueeIfNeeded(); 3804 3805 // Draw the background for this view 3806 super.onDraw(canvas); 3807 3808 final int compoundPaddingLeft = getCompoundPaddingLeft(); 3809 final int compoundPaddingTop = getCompoundPaddingTop(); 3810 final int compoundPaddingRight = getCompoundPaddingRight(); 3811 final int compoundPaddingBottom = getCompoundPaddingBottom(); 3812 final int scrollX = mScrollX; 3813 final int scrollY = mScrollY; 3814 final int right = mRight; 3815 final int left = mLeft; 3816 final int bottom = mBottom; 3817 final int top = mTop; 3818 3819 final Drawables dr = mDrawables; 3820 if (dr != null) { 3821 /* 3822 * Compound, not extended, because the icon is not clipped 3823 * if the text height is smaller. 3824 */ 3825 3826 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 3827 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 3828 3829 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 3830 // Make sure to update invalidateDrawable() when changing this code. 3831 if (dr.mDrawableLeft != null) { 3832 canvas.save(); 3833 canvas.translate(scrollX + mPaddingLeft, 3834 scrollY + compoundPaddingTop + 3835 (vspace - dr.mDrawableHeightLeft) / 2); 3836 dr.mDrawableLeft.draw(canvas); 3837 canvas.restore(); 3838 } 3839 3840 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 3841 // Make sure to update invalidateDrawable() when changing this code. 3842 if (dr.mDrawableRight != null) { 3843 canvas.save(); 3844 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 3845 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 3846 dr.mDrawableRight.draw(canvas); 3847 canvas.restore(); 3848 } 3849 3850 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 3851 // Make sure to update invalidateDrawable() when changing this code. 3852 if (dr.mDrawableTop != null) { 3853 canvas.save(); 3854 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 3855 scrollY + mPaddingTop); 3856 dr.mDrawableTop.draw(canvas); 3857 canvas.restore(); 3858 } 3859 3860 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 3861 // Make sure to update invalidateDrawable() when changing this code. 3862 if (dr.mDrawableBottom != null) { 3863 canvas.save(); 3864 canvas.translate(scrollX + compoundPaddingLeft + 3865 (hspace - dr.mDrawableWidthBottom) / 2, 3866 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 3867 dr.mDrawableBottom.draw(canvas); 3868 canvas.restore(); 3869 } 3870 } 3871 3872 if (mPreDrawState == PREDRAW_DONE) { 3873 final ViewTreeObserver observer = getViewTreeObserver(); 3874 if (observer != null) { 3875 observer.removeOnPreDrawListener(this); 3876 mPreDrawState = PREDRAW_NOT_REGISTERED; 3877 } 3878 } 3879 3880 int color = mCurTextColor; 3881 3882 if (mLayout == null) { 3883 assumeLayout(); 3884 } 3885 3886 Layout layout = mLayout; 3887 int cursorcolor = color; 3888 3889 if (mHint != null && mText.length() == 0) { 3890 if (mHintTextColor != null) { 3891 color = mCurHintTextColor; 3892 } 3893 3894 layout = mHintLayout; 3895 } 3896 3897 mTextPaint.setColor(color); 3898 mTextPaint.drawableState = getDrawableState(); 3899 3900 canvas.save(); 3901 /* Would be faster if we didn't have to do this. Can we chop the 3902 (displayable) text so that we don't need to do this ever? 3903 */ 3904 3905 int extendedPaddingTop = getExtendedPaddingTop(); 3906 int extendedPaddingBottom = getExtendedPaddingBottom(); 3907 3908 float clipLeft = compoundPaddingLeft + scrollX; 3909 float clipTop = extendedPaddingTop + scrollY; 3910 float clipRight = right - left - compoundPaddingRight + scrollX; 3911 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 3912 3913 if (mShadowRadius != 0) { 3914 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 3915 clipRight += Math.max(0, mShadowDx + mShadowRadius); 3916 3917 clipTop += Math.min(0, mShadowDy - mShadowRadius); 3918 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 3919 } 3920 3921 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 3922 3923 int voffsetText = 0; 3924 int voffsetCursor = 0; 3925 3926 // translate in by our padding 3927 { 3928 /* shortcircuit calling getVerticaOffset() */ 3929 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 3930 voffsetText = getVerticalOffset(false); 3931 voffsetCursor = getVerticalOffset(true); 3932 } 3933 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 3934 } 3935 3936 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 3937 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 3938 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 3939 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 3940 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 3941 } 3942 3943 if (mMarquee != null && mMarquee.isRunning()) { 3944 canvas.translate(-mMarquee.mScroll, 0.0f); 3945 } 3946 } 3947 3948 Path highlight = null; 3949 int selStart = -1, selEnd = -1; 3950 3951 // If there is no movement method, then there can be no selection. 3952 // Check that first and attempt to skip everything having to do with 3953 // the cursor. 3954 // XXX This is not strictly true -- a program could set the 3955 // selection manually if it really wanted to. 3956 if (mMovement != null && (isFocused() || isPressed())) { 3957 selStart = Selection.getSelectionStart(mText); 3958 selEnd = Selection.getSelectionEnd(mText); 3959 3960 if (mCursorVisible && selStart >= 0 && isEnabled()) { 3961 if (mHighlightPath == null) 3962 mHighlightPath = new Path(); 3963 3964 if (selStart == selEnd) { 3965 if ((SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 3966 if (mHighlightPathBogus) { 3967 mHighlightPath.reset(); 3968 mLayout.getCursorPath(selStart, mHighlightPath, mText); 3969 mHighlightPathBogus = false; 3970 } 3971 3972 // XXX should pass to skin instead of drawing directly 3973 mHighlightPaint.setColor(cursorcolor); 3974 mHighlightPaint.setStyle(Paint.Style.STROKE); 3975 3976 highlight = mHighlightPath; 3977 } 3978 } else { 3979 if (mHighlightPathBogus) { 3980 mHighlightPath.reset(); 3981 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 3982 mHighlightPathBogus = false; 3983 } 3984 3985 // XXX should pass to skin instead of drawing directly 3986 mHighlightPaint.setColor(mHighlightColor); 3987 mHighlightPaint.setStyle(Paint.Style.FILL); 3988 3989 highlight = mHighlightPath; 3990 } 3991 } 3992 } 3993 3994 /* Comment out until we decide what to do about animations 3995 boolean isLinearTextOn = false; 3996 if (currentTransformation != null) { 3997 isLinearTextOn = mTextPaint.isLinearTextOn(); 3998 Matrix m = currentTransformation.getMatrix(); 3999 if (!m.isIdentity()) { 4000 // mTextPaint.setLinearTextOn(true); 4001 } 4002 } 4003 */ 4004 4005 final InputMethodState ims = mInputMethodState; 4006 if (ims != null && ims.mBatchEditNesting == 0) { 4007 InputMethodManager imm = InputMethodManager.peekInstance(); 4008 if (imm != null) { 4009 if (imm.isActive(this)) { 4010 boolean reported = false; 4011 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4012 // We are in extract mode and the content has changed 4013 // in some way... just report complete new text to the 4014 // input method. 4015 reported = reportExtractedText(); 4016 } 4017 if (!reported && highlight != null) { 4018 int candStart = -1; 4019 int candEnd = -1; 4020 if (mText instanceof Spannable) { 4021 Spannable sp = (Spannable)mText; 4022 candStart = EditableInputConnection.getComposingSpanStart(sp); 4023 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 4024 } 4025 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 4026 } 4027 } 4028 4029 if (imm.isWatchingCursor(this) && highlight != null) { 4030 highlight.computeBounds(ims.mTmpRectF, true); 4031 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 4032 4033 canvas.getMatrix().mapPoints(ims.mTmpOffset); 4034 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 4035 4036 ims.mTmpRectF.offset(0, voffsetCursor - voffsetText); 4037 4038 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 4039 (int)(ims.mTmpRectF.top + 0.5), 4040 (int)(ims.mTmpRectF.right + 0.5), 4041 (int)(ims.mTmpRectF.bottom + 0.5)); 4042 4043 imm.updateCursor(this, 4044 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 4045 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 4046 } 4047 } 4048 } 4049 4050 layout.draw(canvas, highlight, mHighlightPaint, voffsetCursor - voffsetText); 4051 4052 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 4053 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 4054 layout.draw(canvas, highlight, mHighlightPaint, voffsetCursor - voffsetText); 4055 } 4056 4057 /* Comment out until we decide what to do about animations 4058 if (currentTransformation != null) { 4059 mTextPaint.setLinearTextOn(isLinearTextOn); 4060 } 4061 */ 4062 4063 canvas.restore(); 4064 } 4065 4066 @Override 4067 public void getFocusedRect(Rect r) { 4068 if (mLayout == null) { 4069 super.getFocusedRect(r); 4070 return; 4071 } 4072 4073 int sel = getSelectionEnd(); 4074 if (sel < 0) { 4075 super.getFocusedRect(r); 4076 return; 4077 } 4078 4079 int line = mLayout.getLineForOffset(sel); 4080 r.top = mLayout.getLineTop(line); 4081 r.bottom = mLayout.getLineBottom(line); 4082 4083 r.left = (int) mLayout.getPrimaryHorizontal(sel); 4084 r.right = r.left + 1; 4085 4086 // Adjust for padding and gravity. 4087 int paddingLeft = getCompoundPaddingLeft(); 4088 int paddingTop = getExtendedPaddingTop(); 4089 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4090 paddingTop += getVerticalOffset(false); 4091 } 4092 r.offset(paddingLeft, paddingTop); 4093 } 4094 4095 /** 4096 * Return the number of lines of text, or 0 if the internal Layout has not 4097 * been built. 4098 */ 4099 public int getLineCount() { 4100 return mLayout != null ? mLayout.getLineCount() : 0; 4101 } 4102 4103 /** 4104 * Return the baseline for the specified line (0...getLineCount() - 1) 4105 * If bounds is not null, return the top, left, right, bottom extents 4106 * of the specified line in it. If the internal Layout has not been built, 4107 * return 0 and set bounds to (0, 0, 0, 0) 4108 * @param line which line to examine (0..getLineCount() - 1) 4109 * @param bounds Optional. If not null, it returns the extent of the line 4110 * @return the Y-coordinate of the baseline 4111 */ 4112 public int getLineBounds(int line, Rect bounds) { 4113 if (mLayout == null) { 4114 if (bounds != null) { 4115 bounds.set(0, 0, 0, 0); 4116 } 4117 return 0; 4118 } 4119 else { 4120 int baseline = mLayout.getLineBounds(line, bounds); 4121 4122 int voffset = getExtendedPaddingTop(); 4123 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4124 voffset += getVerticalOffset(true); 4125 } 4126 if (bounds != null) { 4127 bounds.offset(getCompoundPaddingLeft(), voffset); 4128 } 4129 return baseline + voffset; 4130 } 4131 } 4132 4133 @Override 4134 public int getBaseline() { 4135 if (mLayout == null) { 4136 return super.getBaseline(); 4137 } 4138 4139 int voffset = 0; 4140 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4141 voffset = getVerticalOffset(true); 4142 } 4143 4144 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 4145 } 4146 4147 @Override 4148 public boolean onKeyDown(int keyCode, KeyEvent event) { 4149 int which = doKeyDown(keyCode, event, null); 4150 if (which == 0) { 4151 // Go through default dispatching. 4152 return super.onKeyDown(keyCode, event); 4153 } 4154 4155 return true; 4156 } 4157 4158 @Override 4159 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 4160 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 4161 4162 int which = doKeyDown(keyCode, down, event); 4163 if (which == 0) { 4164 // Go through default dispatching. 4165 return super.onKeyMultiple(keyCode, repeatCount, event); 4166 } 4167 if (which == -1) { 4168 // Consumed the whole thing. 4169 return true; 4170 } 4171 4172 repeatCount--; 4173 4174 // We are going to dispatch the remaining events to either the input 4175 // or movement method. To do this, we will just send a repeated stream 4176 // of down and up events until we have done the complete repeatCount. 4177 // It would be nice if those interfaces had an onKeyMultiple() method, 4178 // but adding that is a more complicated change. 4179 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 4180 if (which == 1) { 4181 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4182 while (--repeatCount > 0) { 4183 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 4184 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4185 } 4186 if (mError != null && !mErrorWasChanged) { 4187 setError(null, null); 4188 } 4189 4190 } else if (which == 2) { 4191 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4192 while (--repeatCount > 0) { 4193 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 4194 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4195 } 4196 } 4197 4198 return true; 4199 } 4200 4201 /** 4202 * Returns true if pressing ENTER in this field advances focus instead 4203 * of inserting the character. This is true mostly in single-line fields, 4204 * but also in mail addresses and subjects which will display on multiple 4205 * lines but where it doesn't make sense to insert newlines. 4206 */ 4207 private boolean shouldAdvanceFocusOnEnter() { 4208 if (mInput == null) { 4209 return false; 4210 } 4211 4212 if (mSingleLine) { 4213 return true; 4214 } 4215 4216 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4217 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4218 4219 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 4220 variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 4221 return true; 4222 } 4223 } 4224 4225 return false; 4226 } 4227 4228 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 4229 if (!isEnabled()) { 4230 return 0; 4231 } 4232 4233 switch (keyCode) { 4234 case KeyEvent.KEYCODE_ENTER: 4235 // If ALT modifier is held, then we always insert a 4236 // newline character. 4237 if ((event.getMetaState()&KeyEvent.META_ALT_ON) == 0) { 4238 4239 // When mInputContentType is set, we know that we are 4240 // running in a "modern" cupcake environment, so don't need 4241 // to worry about the application trying to capture 4242 // enter key events. 4243 if (mInputContentType != null) { 4244 4245 // If there is an action listener, given them a 4246 // chance to consume the event. 4247 if (mInputContentType.onEditorActionListener != null && 4248 mInputContentType.onEditorActionListener.onEditorAction( 4249 this, EditorInfo.IME_NULL, event)) { 4250 mInputContentType.enterDown = true; 4251 // We are consuming the enter key for them. 4252 return -1; 4253 } 4254 } 4255 4256 // If our editor should move focus when enter is pressed, or 4257 // this is a generated event from an IME action button, then 4258 // don't let it be inserted into the text. 4259 if ((event.getFlags()&KeyEvent.FLAG_EDITOR_ACTION) != 0 4260 || shouldAdvanceFocusOnEnter()) { 4261 return -1; 4262 } 4263 } 4264 break; 4265 4266 case KeyEvent.KEYCODE_DPAD_CENTER: 4267 if (shouldAdvanceFocusOnEnter()) { 4268 return 0; 4269 } 4270 } 4271 4272 if (mInput != null) { 4273 /* 4274 * Keep track of what the error was before doing the input 4275 * so that if an input filter changed the error, we leave 4276 * that error showing. Otherwise, we take down whatever 4277 * error was showing when the user types something. 4278 */ 4279 mErrorWasChanged = false; 4280 4281 boolean doDown = true; 4282 if (otherEvent != null) { 4283 try { 4284 beginBatchEdit(); 4285 boolean handled = mInput.onKeyOther(this, (Editable) mText, 4286 otherEvent); 4287 if (mError != null && !mErrorWasChanged) { 4288 setError(null, null); 4289 } 4290 doDown = false; 4291 if (handled) { 4292 return -1; 4293 } 4294 } catch (AbstractMethodError e) { 4295 // onKeyOther was added after 1.0, so if it isn't 4296 // implemented we need to try to dispatch as a regular down. 4297 } finally { 4298 endBatchEdit(); 4299 } 4300 } 4301 4302 if (doDown) { 4303 beginBatchEdit(); 4304 if (mInput.onKeyDown(this, (Editable) mText, keyCode, event)) { 4305 endBatchEdit(); 4306 if (mError != null && !mErrorWasChanged) { 4307 setError(null, null); 4308 } 4309 return 1; 4310 } 4311 endBatchEdit(); 4312 } 4313 } 4314 4315 // bug 650865: sometimes we get a key event before a layout. 4316 // don't try to move around if we don't know the layout. 4317 4318 if (mMovement != null && mLayout != null) { 4319 boolean doDown = true; 4320 if (otherEvent != null) { 4321 try { 4322 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 4323 otherEvent); 4324 doDown = false; 4325 if (handled) { 4326 return -1; 4327 } 4328 } catch (AbstractMethodError e) { 4329 // onKeyOther was added after 1.0, so if it isn't 4330 // implemented we need to try to dispatch as a regular down. 4331 } 4332 } 4333 if (doDown) { 4334 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 4335 return 2; 4336 } 4337 } 4338 4339 return 0; 4340 } 4341 4342 @Override 4343 public boolean onKeyUp(int keyCode, KeyEvent event) { 4344 if (!isEnabled()) { 4345 return super.onKeyUp(keyCode, event); 4346 } 4347 4348 switch (keyCode) { 4349 case KeyEvent.KEYCODE_DPAD_CENTER: 4350 /* 4351 * If there is a click listener, just call through to 4352 * super, which will invoke it. 4353 * 4354 * If there isn't a click listener, try to show the soft 4355 * input method. (It will also 4356 * call performClick(), but that won't do anything in 4357 * this case.) 4358 */ 4359 if (mOnClickListener == null) { 4360 if (mMovement != null && mText instanceof Editable 4361 && mLayout != null && onCheckIsTextEditor()) { 4362 InputMethodManager imm = (InputMethodManager) 4363 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 4364 imm.showSoftInput(this, 0); 4365 } 4366 } 4367 return super.onKeyUp(keyCode, event); 4368 4369 case KeyEvent.KEYCODE_ENTER: 4370 if (mInputContentType != null 4371 && mInputContentType.onEditorActionListener != null 4372 && mInputContentType.enterDown) { 4373 mInputContentType.enterDown = false; 4374 if (mInputContentType.onEditorActionListener.onEditorAction( 4375 this, EditorInfo.IME_NULL, event)) { 4376 return true; 4377 } 4378 } 4379 4380 if ((event.getFlags()&KeyEvent.FLAG_EDITOR_ACTION) != 0 4381 || shouldAdvanceFocusOnEnter()) { 4382 /* 4383 * If there is a click listener, just call through to 4384 * super, which will invoke it. 4385 * 4386 * If there isn't a click listener, try to advance focus, 4387 * but still call through to super, which will reset the 4388 * pressed state and longpress state. (It will also 4389 * call performClick(), but that won't do anything in 4390 * this case.) 4391 */ 4392 if (mOnClickListener == null) { 4393 View v = focusSearch(FOCUS_DOWN); 4394 4395 if (v != null) { 4396 if (!v.requestFocus(FOCUS_DOWN)) { 4397 throw new IllegalStateException("focus search returned a view " + 4398 "that wasn't able to take focus!"); 4399 } 4400 4401 /* 4402 * Return true because we handled the key; super 4403 * will return false because there was no click 4404 * listener. 4405 */ 4406 super.onKeyUp(keyCode, event); 4407 return true; 4408 } else if ((event.getFlags() 4409 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 4410 // No target for next focus, but make sure the IME 4411 // if this came from it. 4412 InputMethodManager imm = InputMethodManager.peekInstance(); 4413 if (imm != null) { 4414 imm.hideSoftInputFromWindow(getWindowToken(), 0); 4415 } 4416 } 4417 } 4418 4419 return super.onKeyUp(keyCode, event); 4420 } 4421 } 4422 4423 if (mInput != null) 4424 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 4425 return true; 4426 4427 if (mMovement != null && mLayout != null) 4428 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 4429 return true; 4430 4431 return super.onKeyUp(keyCode, event); 4432 } 4433 4434 @Override public boolean onCheckIsTextEditor() { 4435 return mInputType != EditorInfo.TYPE_NULL; 4436 } 4437 4438 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4439 if (onCheckIsTextEditor()) { 4440 if (mInputMethodState == null) { 4441 mInputMethodState = new InputMethodState(); 4442 } 4443 outAttrs.inputType = mInputType; 4444 if (mInputContentType != null) { 4445 outAttrs.imeOptions = mInputContentType.imeOptions; 4446 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 4447 outAttrs.actionLabel = mInputContentType.imeActionLabel; 4448 outAttrs.actionId = mInputContentType.imeActionId; 4449 outAttrs.extras = mInputContentType.extras; 4450 } else { 4451 outAttrs.imeOptions = EditorInfo.IME_NULL; 4452 } 4453 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 4454 == EditorInfo.IME_ACTION_UNSPECIFIED) { 4455 if (focusSearch(FOCUS_DOWN) != null) { 4456 // An action has not been set, but the enter key will move to 4457 // the next focus, so set the action to that. 4458 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 4459 } else { 4460 // An action has not been set, and there is no focus to move 4461 // to, so let's just supply a "done" action. 4462 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 4463 } 4464 if (!shouldAdvanceFocusOnEnter()) { 4465 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 4466 } 4467 } 4468 if ((outAttrs.inputType & (InputType.TYPE_MASK_CLASS 4469 | InputType.TYPE_TEXT_FLAG_MULTI_LINE)) 4470 == (InputType.TYPE_CLASS_TEXT 4471 | InputType.TYPE_TEXT_FLAG_MULTI_LINE)) { 4472 // Multi-line text editors should always show an enter key. 4473 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 4474 } 4475 outAttrs.hintText = mHint; 4476 if (mText instanceof Editable) { 4477 InputConnection ic = new EditableInputConnection(this); 4478 outAttrs.initialSelStart = Selection.getSelectionStart(mText); 4479 outAttrs.initialSelEnd = Selection.getSelectionEnd(mText); 4480 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 4481 return ic; 4482 } 4483 } 4484 return null; 4485 } 4486 4487 /** 4488 * If this TextView contains editable content, extract a portion of it 4489 * based on the information in <var>request</var> in to <var>outText</var>. 4490 * @return Returns true if the text was successfully extracted, else false. 4491 */ 4492 public boolean extractText(ExtractedTextRequest request, 4493 ExtractedText outText) { 4494 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 4495 EXTRACT_UNKNOWN, outText); 4496 } 4497 4498 static final int EXTRACT_NOTHING = -2; 4499 static final int EXTRACT_UNKNOWN = -1; 4500 4501 boolean extractTextInternal(ExtractedTextRequest request, 4502 int partialStartOffset, int partialEndOffset, int delta, 4503 ExtractedText outText) { 4504 final CharSequence content = mText; 4505 if (content != null) { 4506 if (partialStartOffset != EXTRACT_NOTHING) { 4507 final int N = content.length(); 4508 if (partialStartOffset < 0) { 4509 outText.partialStartOffset = outText.partialEndOffset = -1; 4510 partialStartOffset = 0; 4511 partialEndOffset = N; 4512 } else { 4513 // Adjust offsets to ensure we contain full spans. 4514 if (content instanceof Spanned) { 4515 Spanned spanned = (Spanned)content; 4516 Object[] spans = spanned.getSpans(partialStartOffset, 4517 partialEndOffset, ParcelableSpan.class); 4518 int i = spans.length; 4519 while (i > 0) { 4520 i--; 4521 int j = spanned.getSpanStart(spans[i]); 4522 if (j < partialStartOffset) partialStartOffset = j; 4523 j = spanned.getSpanEnd(spans[i]); 4524 if (j > partialEndOffset) partialEndOffset = j; 4525 } 4526 } 4527 outText.partialStartOffset = partialStartOffset; 4528 outText.partialEndOffset = partialEndOffset; 4529 // Now use the delta to determine the actual amount of text 4530 // we need. 4531 partialEndOffset += delta; 4532 if (partialStartOffset > N) { 4533 partialStartOffset = N; 4534 } else if (partialStartOffset < 0) { 4535 partialStartOffset = 0; 4536 } 4537 if (partialEndOffset > N) { 4538 partialEndOffset = N; 4539 } else if (partialEndOffset < 0) { 4540 partialEndOffset = 0; 4541 } 4542 } 4543 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 4544 outText.text = content.subSequence(partialStartOffset, 4545 partialEndOffset); 4546 } else { 4547 outText.text = TextUtils.substring(content, partialStartOffset, 4548 partialEndOffset); 4549 } 4550 } 4551 outText.flags = 0; 4552 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 4553 outText.flags |= ExtractedText.FLAG_SELECTING; 4554 } 4555 if (mSingleLine) { 4556 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 4557 } 4558 outText.startOffset = 0; 4559 outText.selectionStart = Selection.getSelectionStart(content); 4560 outText.selectionEnd = Selection.getSelectionEnd(content); 4561 return true; 4562 } 4563 return false; 4564 } 4565 4566 boolean reportExtractedText() { 4567 final InputMethodState ims = mInputMethodState; 4568 if (ims != null) { 4569 final boolean contentChanged = ims.mContentChanged; 4570 if (contentChanged || ims.mSelectionModeChanged) { 4571 ims.mContentChanged = false; 4572 ims.mSelectionModeChanged = false; 4573 final ExtractedTextRequest req = mInputMethodState.mExtracting; 4574 if (req != null) { 4575 InputMethodManager imm = InputMethodManager.peekInstance(); 4576 if (imm != null) { 4577 if (DEBUG_EXTRACT) Log.v(TAG, "Retrieving extracted start=" 4578 + ims.mChangedStart + " end=" + ims.mChangedEnd 4579 + " delta=" + ims.mChangedDelta); 4580 if (ims.mChangedStart < 0 && !contentChanged) { 4581 ims.mChangedStart = EXTRACT_NOTHING; 4582 } 4583 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 4584 ims.mChangedDelta, ims.mTmpExtracted)) { 4585 if (DEBUG_EXTRACT) Log.v(TAG, "Reporting extracted start=" 4586 + ims.mTmpExtracted.partialStartOffset 4587 + " end=" + ims.mTmpExtracted.partialEndOffset 4588 + ": " + ims.mTmpExtracted.text); 4589 imm.updateExtractedText(this, req.token, 4590 mInputMethodState.mTmpExtracted); 4591 return true; 4592 } 4593 } 4594 } 4595 } 4596 } 4597 return false; 4598 } 4599 4600 /** 4601 * This is used to remove all style-impacting spans from text before new 4602 * extracted text is being replaced into it, so that we don't have any 4603 * lingering spans applied during the replace. 4604 */ 4605 static void removeParcelableSpans(Spannable spannable, int start, int end) { 4606 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 4607 int i = spans.length; 4608 while (i > 0) { 4609 i--; 4610 spannable.removeSpan(spans[i]); 4611 } 4612 } 4613 4614 /** 4615 * Apply to this text view the given extracted text, as previously 4616 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 4617 */ 4618 public void setExtractedText(ExtractedText text) { 4619 Editable content = getEditableText(); 4620 if (text.text != null) { 4621 if (content == null) { 4622 setText(text.text, TextView.BufferType.EDITABLE); 4623 } else if (text.partialStartOffset < 0) { 4624 removeParcelableSpans(content, 0, content.length()); 4625 content.replace(0, content.length(), text.text); 4626 } else { 4627 final int N = content.length(); 4628 int start = text.partialStartOffset; 4629 if (start > N) start = N; 4630 int end = text.partialEndOffset; 4631 if (end > N) end = N; 4632 removeParcelableSpans(content, start, end); 4633 content.replace(start, end, text.text); 4634 } 4635 } 4636 4637 // Now set the selection position... make sure it is in range, to 4638 // avoid crashes. If this is a partial update, it is possible that 4639 // the underlying text may have changed, causing us problems here. 4640 // Also we just don't want to trust clients to do the right thing. 4641 Spannable sp = (Spannable)getText(); 4642 final int N = sp.length(); 4643 int start = text.selectionStart; 4644 if (start < 0) start = 0; 4645 else if (start > N) start = N; 4646 int end = text.selectionEnd; 4647 if (end < 0) end = 0; 4648 else if (end > N) end = N; 4649 Selection.setSelection(sp, start, end); 4650 4651 // Finally, update the selection mode. 4652 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 4653 MetaKeyKeyListener.startSelecting(this, sp); 4654 } else { 4655 MetaKeyKeyListener.stopSelecting(this, sp); 4656 } 4657 } 4658 4659 /** 4660 * @hide 4661 */ 4662 public void setExtracting(ExtractedTextRequest req) { 4663 if (mInputMethodState != null) { 4664 mInputMethodState.mExtracting = req; 4665 } 4666 } 4667 4668 /** 4669 * Called by the framework in response to a text completion from 4670 * the current input method, provided by it calling 4671 * {@link InputConnection#commitCompletion 4672 * InputConnection.commitCompletion()}. The default implementation does 4673 * nothing; text views that are supporting auto-completion should override 4674 * this to do their desired behavior. 4675 * 4676 * @param text The auto complete text the user has selected. 4677 */ 4678 public void onCommitCompletion(CompletionInfo text) { 4679 } 4680 4681 public void beginBatchEdit() { 4682 final InputMethodState ims = mInputMethodState; 4683 if (ims != null) { 4684 int nesting = ++ims.mBatchEditNesting; 4685 if (nesting == 1) { 4686 ims.mCursorChanged = false; 4687 ims.mChangedDelta = 0; 4688 if (ims.mContentChanged) { 4689 // We already have a pending change from somewhere else, 4690 // so turn this into a full update. 4691 ims.mChangedStart = 0; 4692 ims.mChangedEnd = mText.length(); 4693 } else { 4694 ims.mChangedStart = EXTRACT_UNKNOWN; 4695 ims.mChangedEnd = EXTRACT_UNKNOWN; 4696 ims.mContentChanged = false; 4697 } 4698 onBeginBatchEdit(); 4699 } 4700 } 4701 } 4702 4703 public void endBatchEdit() { 4704 final InputMethodState ims = mInputMethodState; 4705 if (ims != null) { 4706 int nesting = --ims.mBatchEditNesting; 4707 if (nesting == 0) { 4708 finishBatchEdit(ims); 4709 } 4710 } 4711 } 4712 4713 void ensureEndedBatchEdit() { 4714 final InputMethodState ims = mInputMethodState; 4715 if (ims != null && ims.mBatchEditNesting != 0) { 4716 ims.mBatchEditNesting = 0; 4717 finishBatchEdit(ims); 4718 } 4719 } 4720 4721 void finishBatchEdit(final InputMethodState ims) { 4722 onEndBatchEdit(); 4723 4724 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4725 updateAfterEdit(); 4726 reportExtractedText(); 4727 } else if (ims.mCursorChanged) { 4728 // Cheezy way to get us to report the current cursor location. 4729 invalidateCursor(); 4730 } 4731 } 4732 4733 void updateAfterEdit() { 4734 invalidate(); 4735 int curs = Selection.getSelectionStart(mText); 4736 4737 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == 4738 Gravity.BOTTOM) { 4739 registerForPreDraw(); 4740 } 4741 4742 if (curs >= 0) { 4743 mHighlightPathBogus = true; 4744 4745 if (isFocused()) { 4746 mShowCursor = SystemClock.uptimeMillis(); 4747 makeBlink(); 4748 } 4749 } 4750 4751 checkForResize(); 4752 } 4753 4754 /** 4755 * Called by the framework in response to a request to begin a batch 4756 * of edit operations through a call to link {@link #beginBatchEdit()}. 4757 */ 4758 public void onBeginBatchEdit() { 4759 } 4760 4761 /** 4762 * Called by the framework in response to a request to end a batch 4763 * of edit operations through a call to link {@link #endBatchEdit}. 4764 */ 4765 public void onEndBatchEdit() { 4766 } 4767 4768 /** 4769 * Called by the framework in response to a private command from the 4770 * current method, provided by it calling 4771 * {@link InputConnection#performPrivateCommand 4772 * InputConnection.performPrivateCommand()}. 4773 * 4774 * @param action The action name of the command. 4775 * @param data Any additional data for the command. This may be null. 4776 * @return Return true if you handled the command, else false. 4777 */ 4778 public boolean onPrivateIMECommand(String action, Bundle data) { 4779 return false; 4780 } 4781 4782 private void nullLayouts() { 4783 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 4784 mSavedLayout = (BoringLayout) mLayout; 4785 } 4786 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 4787 mSavedHintLayout = (BoringLayout) mHintLayout; 4788 } 4789 4790 mLayout = mHintLayout = null; 4791 } 4792 4793 /** 4794 * Make a new Layout based on the already-measured size of the view, 4795 * on the assumption that it was measured correctly at some point. 4796 */ 4797 private void assumeLayout() { 4798 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 4799 4800 if (width < 1) { 4801 width = 0; 4802 } 4803 4804 int physicalWidth = width; 4805 4806 if (mHorizontallyScrolling) { 4807 width = VERY_WIDE; 4808 } 4809 4810 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 4811 physicalWidth, false); 4812 } 4813 4814 /** 4815 * The width passed in is now the desired layout width, 4816 * not the full view width with padding. 4817 * {@hide} 4818 */ 4819 protected void makeNewLayout(int w, int hintWidth, 4820 BoringLayout.Metrics boring, 4821 BoringLayout.Metrics hintBoring, 4822 int ellipsisWidth, boolean bringIntoView) { 4823 stopMarquee(); 4824 4825 mHighlightPathBogus = true; 4826 4827 if (w < 0) { 4828 w = 0; 4829 } 4830 if (hintWidth < 0) { 4831 hintWidth = 0; 4832 } 4833 4834 Layout.Alignment alignment; 4835 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 4836 case Gravity.CENTER_HORIZONTAL: 4837 alignment = Layout.Alignment.ALIGN_CENTER; 4838 break; 4839 4840 case Gravity.RIGHT: 4841 alignment = Layout.Alignment.ALIGN_OPPOSITE; 4842 break; 4843 4844 default: 4845 alignment = Layout.Alignment.ALIGN_NORMAL; 4846 } 4847 4848 boolean shouldEllipsize = mEllipsize != null && mInput == null; 4849 4850 if (mText instanceof Spannable) { 4851 mLayout = new DynamicLayout(mText, mTransformed, mTextPaint, w, 4852 alignment, mSpacingMult, 4853 mSpacingAdd, mIncludePad, mInput == null ? mEllipsize : null, 4854 ellipsisWidth); 4855 } else { 4856 if (boring == UNKNOWN_BORING) { 4857 boring = BoringLayout.isBoring(mTransformed, mTextPaint, 4858 mBoring); 4859 if (boring != null) { 4860 mBoring = boring; 4861 } 4862 } 4863 4864 if (boring != null) { 4865 if (boring.width <= w && 4866 (mEllipsize == null || boring.width <= ellipsisWidth)) { 4867 if (mSavedLayout != null) { 4868 mLayout = mSavedLayout. 4869 replaceOrMake(mTransformed, mTextPaint, 4870 w, alignment, mSpacingMult, mSpacingAdd, 4871 boring, mIncludePad); 4872 } else { 4873 mLayout = BoringLayout.make(mTransformed, mTextPaint, 4874 w, alignment, mSpacingMult, mSpacingAdd, 4875 boring, mIncludePad); 4876 } 4877 // Log.e("aaa", "Boring: " + mTransformed); 4878 4879 mSavedLayout = (BoringLayout) mLayout; 4880 } else if (shouldEllipsize && boring.width <= w) { 4881 if (mSavedLayout != null) { 4882 mLayout = mSavedLayout. 4883 replaceOrMake(mTransformed, mTextPaint, 4884 w, alignment, mSpacingMult, mSpacingAdd, 4885 boring, mIncludePad, mEllipsize, 4886 ellipsisWidth); 4887 } else { 4888 mLayout = BoringLayout.make(mTransformed, mTextPaint, 4889 w, alignment, mSpacingMult, mSpacingAdd, 4890 boring, mIncludePad, mEllipsize, 4891 ellipsisWidth); 4892 } 4893 } else if (shouldEllipsize) { 4894 mLayout = new StaticLayout(mTransformed, 4895 0, mTransformed.length(), 4896 mTextPaint, w, alignment, mSpacingMult, 4897 mSpacingAdd, mIncludePad, mEllipsize, 4898 ellipsisWidth); 4899 } else { 4900 mLayout = new StaticLayout(mTransformed, mTextPaint, 4901 w, alignment, mSpacingMult, mSpacingAdd, 4902 mIncludePad); 4903 // Log.e("aaa", "Boring but wide: " + mTransformed); 4904 } 4905 } else if (shouldEllipsize) { 4906 mLayout = new StaticLayout(mTransformed, 4907 0, mTransformed.length(), 4908 mTextPaint, w, alignment, mSpacingMult, 4909 mSpacingAdd, mIncludePad, mEllipsize, 4910 ellipsisWidth); 4911 } else { 4912 mLayout = new StaticLayout(mTransformed, mTextPaint, 4913 w, alignment, mSpacingMult, mSpacingAdd, 4914 mIncludePad); 4915 } 4916 } 4917 4918 shouldEllipsize = mEllipsize != null; 4919 mHintLayout = null; 4920 4921 if (mHint != null) { 4922 if (shouldEllipsize) hintWidth = w; 4923 4924 if (hintBoring == UNKNOWN_BORING) { 4925 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, 4926 mHintBoring); 4927 if (hintBoring != null) { 4928 mHintBoring = hintBoring; 4929 } 4930 } 4931 4932 if (hintBoring != null) { 4933 if (hintBoring.width <= hintWidth && 4934 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 4935 if (mSavedHintLayout != null) { 4936 mHintLayout = mSavedHintLayout. 4937 replaceOrMake(mHint, mTextPaint, 4938 hintWidth, alignment, mSpacingMult, mSpacingAdd, 4939 hintBoring, mIncludePad); 4940 } else { 4941 mHintLayout = BoringLayout.make(mHint, mTextPaint, 4942 hintWidth, alignment, mSpacingMult, mSpacingAdd, 4943 hintBoring, mIncludePad); 4944 } 4945 4946 mSavedHintLayout = (BoringLayout) mHintLayout; 4947 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 4948 if (mSavedHintLayout != null) { 4949 mHintLayout = mSavedHintLayout. 4950 replaceOrMake(mHint, mTextPaint, 4951 hintWidth, alignment, mSpacingMult, mSpacingAdd, 4952 hintBoring, mIncludePad, mEllipsize, 4953 ellipsisWidth); 4954 } else { 4955 mHintLayout = BoringLayout.make(mHint, mTextPaint, 4956 hintWidth, alignment, mSpacingMult, mSpacingAdd, 4957 hintBoring, mIncludePad, mEllipsize, 4958 ellipsisWidth); 4959 } 4960 } else if (shouldEllipsize) { 4961 mHintLayout = new StaticLayout(mHint, 4962 0, mHint.length(), 4963 mTextPaint, hintWidth, alignment, mSpacingMult, 4964 mSpacingAdd, mIncludePad, mEllipsize, 4965 ellipsisWidth); 4966 } else { 4967 mHintLayout = new StaticLayout(mHint, mTextPaint, 4968 hintWidth, alignment, mSpacingMult, mSpacingAdd, 4969 mIncludePad); 4970 } 4971 } else if (shouldEllipsize) { 4972 mHintLayout = new StaticLayout(mHint, 4973 0, mHint.length(), 4974 mTextPaint, hintWidth, alignment, mSpacingMult, 4975 mSpacingAdd, mIncludePad, mEllipsize, 4976 ellipsisWidth); 4977 } else { 4978 mHintLayout = new StaticLayout(mHint, mTextPaint, 4979 hintWidth, alignment, mSpacingMult, mSpacingAdd, 4980 mIncludePad); 4981 } 4982 } 4983 4984 if (bringIntoView) { 4985 registerForPreDraw(); 4986 } 4987 4988 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4989 if (!compressText(ellipsisWidth)) { 4990 final int height = mLayoutParams.height; 4991 // If the size of the view does not depend on the size of the text, try to 4992 // start the marquee immediately 4993 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 4994 startMarquee(); 4995 } else { 4996 // Defer the start of the marquee until we know our width (see setFrame()) 4997 mRestartMarquee = true; 4998 } 4999 } 5000 } 5001 } 5002 5003 private boolean compressText(float width) { 5004 // Only compress the text if it hasn't been compressed by the previous pass 5005 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 5006 mTextPaint.getTextScaleX() == 1.0f) { 5007 final float textWidth = mLayout.getLineWidth(0); 5008 final float overflow = (textWidth + 1.0f - width) / width; 5009 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 5010 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 5011 post(new Runnable() { 5012 public void run() { 5013 requestLayout(); 5014 } 5015 }); 5016 return true; 5017 } 5018 } 5019 5020 return false; 5021 } 5022 5023 private static int desired(Layout layout) { 5024 int n = layout.getLineCount(); 5025 CharSequence text = layout.getText(); 5026 float max = 0; 5027 5028 // if any line was wrapped, we can't use it. 5029 // but it's ok for the last line not to have a newline 5030 5031 for (int i = 0; i < n - 1; i++) { 5032 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 5033 return -1; 5034 } 5035 5036 for (int i = 0; i < n; i++) { 5037 max = Math.max(max, layout.getLineWidth(i)); 5038 } 5039 5040 return (int) FloatMath.ceil(max); 5041 } 5042 5043 /** 5044 * Set whether the TextView includes extra top and bottom padding to make 5045 * room for accents that go above the normal ascent and descent. 5046 * The default is true. 5047 * 5048 * @attr ref android.R.styleable#TextView_includeFontPadding 5049 */ 5050 public void setIncludeFontPadding(boolean includepad) { 5051 mIncludePad = includepad; 5052 5053 if (mLayout != null) { 5054 nullLayouts(); 5055 requestLayout(); 5056 invalidate(); 5057 } 5058 } 5059 5060 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 5061 5062 @Override 5063 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 5064 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 5065 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 5066 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 5067 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 5068 5069 int width; 5070 int height; 5071 5072 BoringLayout.Metrics boring = UNKNOWN_BORING; 5073 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 5074 5075 int des = -1; 5076 boolean fromexisting = false; 5077 5078 if (widthMode == MeasureSpec.EXACTLY) { 5079 // Parent has told us how big to be. So be it. 5080 width = widthSize; 5081 } else { 5082 if (mLayout != null && mEllipsize == null) { 5083 des = desired(mLayout); 5084 } 5085 5086 if (des < 0) { 5087 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mBoring); 5088 if (boring != null) { 5089 mBoring = boring; 5090 } 5091 } else { 5092 fromexisting = true; 5093 } 5094 5095 if (boring == null || boring == UNKNOWN_BORING) { 5096 if (des < 0) { 5097 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 5098 } 5099 5100 width = des; 5101 } else { 5102 width = boring.width; 5103 } 5104 5105 final Drawables dr = mDrawables; 5106 if (dr != null) { 5107 width = Math.max(width, dr.mDrawableWidthTop); 5108 width = Math.max(width, dr.mDrawableWidthBottom); 5109 } 5110 5111 if (mHint != null) { 5112 int hintDes = -1; 5113 int hintWidth; 5114 5115 if (mHintLayout != null && mEllipsize == null) { 5116 hintDes = desired(mHintLayout); 5117 } 5118 5119 if (hintDes < 0) { 5120 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 5121 if (hintBoring != null) { 5122 mHintBoring = hintBoring; 5123 } 5124 } 5125 5126 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 5127 if (hintDes < 0) { 5128 hintDes = (int) FloatMath.ceil( 5129 Layout.getDesiredWidth(mHint, mTextPaint)); 5130 } 5131 5132 hintWidth = hintDes; 5133 } else { 5134 hintWidth = hintBoring.width; 5135 } 5136 5137 if (hintWidth > width) { 5138 width = hintWidth; 5139 } 5140 } 5141 5142 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 5143 5144 if (mMaxWidthMode == EMS) { 5145 width = Math.min(width, mMaxWidth * getLineHeight()); 5146 } else { 5147 width = Math.min(width, mMaxWidth); 5148 } 5149 5150 if (mMinWidthMode == EMS) { 5151 width = Math.max(width, mMinWidth * getLineHeight()); 5152 } else { 5153 width = Math.max(width, mMinWidth); 5154 } 5155 5156 // Check against our minimum width 5157 width = Math.max(width, getSuggestedMinimumWidth()); 5158 5159 if (widthMode == MeasureSpec.AT_MOST) { 5160 width = Math.min(widthSize, width); 5161 } 5162 } 5163 5164 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5165 int unpaddedWidth = want; 5166 int hintWant = want; 5167 5168 if (mHorizontallyScrolling) 5169 want = VERY_WIDE; 5170 5171 int hintWidth = mHintLayout == null ? hintWant : mHintLayout.getWidth(); 5172 5173 if (mLayout == null) { 5174 makeNewLayout(want, hintWant, boring, hintBoring, 5175 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5176 } else if ((mLayout.getWidth() != want) || (hintWidth != hintWant) || 5177 (mLayout.getEllipsizedWidth() != 5178 width - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 5179 if (mHint == null && mEllipsize == null && 5180 want > mLayout.getWidth() && 5181 (mLayout instanceof BoringLayout || 5182 (fromexisting && des >= 0 && des <= want))) { 5183 mLayout.increaseWidthTo(want); 5184 } else { 5185 makeNewLayout(want, hintWant, boring, hintBoring, 5186 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5187 } 5188 } else { 5189 // Width has not changed. 5190 } 5191 5192 if (heightMode == MeasureSpec.EXACTLY) { 5193 // Parent has told us how big to be. So be it. 5194 height = heightSize; 5195 mDesiredHeightAtMeasure = -1; 5196 } else { 5197 int desired = getDesiredHeight(); 5198 5199 height = desired; 5200 mDesiredHeightAtMeasure = desired; 5201 5202 if (heightMode == MeasureSpec.AT_MOST) { 5203 height = Math.min(desired, heightSize); 5204 } 5205 } 5206 5207 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 5208 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 5209 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 5210 } 5211 5212 /* 5213 * We didn't let makeNewLayout() register to bring the cursor into view, 5214 * so do it here if there is any possibility that it is needed. 5215 */ 5216 if (mMovement != null || 5217 mLayout.getWidth() > unpaddedWidth || 5218 mLayout.getHeight() > unpaddedHeight) { 5219 registerForPreDraw(); 5220 } else { 5221 scrollTo(0, 0); 5222 } 5223 5224 setMeasuredDimension(width, height); 5225 } 5226 5227 private int getDesiredHeight() { 5228 return Math.max( 5229 getDesiredHeight(mLayout, true), 5230 getDesiredHeight(mHintLayout, mEllipsize != null)); 5231 } 5232 5233 private int getDesiredHeight(Layout layout, boolean cap) { 5234 if (layout == null) { 5235 return 0; 5236 } 5237 5238 int linecount = layout.getLineCount(); 5239 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 5240 int desired = layout.getLineTop(linecount); 5241 5242 final Drawables dr = mDrawables; 5243 if (dr != null) { 5244 desired = Math.max(desired, dr.mDrawableHeightLeft); 5245 desired = Math.max(desired, dr.mDrawableHeightRight); 5246 } 5247 5248 desired += pad; 5249 5250 if (mMaxMode == LINES) { 5251 /* 5252 * Don't cap the hint to a certain number of lines. 5253 * (Do cap it, though, if we have a maximum pixel height.) 5254 */ 5255 if (cap) { 5256 if (linecount > mMaximum) { 5257 desired = layout.getLineTop(mMaximum) + 5258 layout.getBottomPadding(); 5259 5260 if (dr != null) { 5261 desired = Math.max(desired, dr.mDrawableHeightLeft); 5262 desired = Math.max(desired, dr.mDrawableHeightRight); 5263 } 5264 5265 desired += pad; 5266 linecount = mMaximum; 5267 } 5268 } 5269 } else { 5270 desired = Math.min(desired, mMaximum); 5271 } 5272 5273 if (mMinMode == LINES) { 5274 if (linecount < mMinimum) { 5275 desired += getLineHeight() * (mMinimum - linecount); 5276 } 5277 } else { 5278 desired = Math.max(desired, mMinimum); 5279 } 5280 5281 // Check against our minimum height 5282 desired = Math.max(desired, getSuggestedMinimumHeight()); 5283 5284 return desired; 5285 } 5286 5287 /** 5288 * Check whether a change to the existing text layout requires a 5289 * new view layout. 5290 */ 5291 private void checkForResize() { 5292 boolean sizeChanged = false; 5293 5294 if (mLayout != null) { 5295 // Check if our width changed 5296 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 5297 sizeChanged = true; 5298 invalidate(); 5299 } 5300 5301 // Check if our height changed 5302 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 5303 int desiredHeight = getDesiredHeight(); 5304 5305 if (desiredHeight != this.getHeight()) { 5306 sizeChanged = true; 5307 } 5308 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 5309 if (mDesiredHeightAtMeasure >= 0) { 5310 int desiredHeight = getDesiredHeight(); 5311 5312 if (desiredHeight != mDesiredHeightAtMeasure) { 5313 sizeChanged = true; 5314 } 5315 } 5316 } 5317 } 5318 5319 if (sizeChanged) { 5320 requestLayout(); 5321 // caller will have already invalidated 5322 } 5323 } 5324 5325 /** 5326 * Check whether entirely new text requires a new view layout 5327 * or merely a new text layout. 5328 */ 5329 private void checkForRelayout() { 5330 // If we have a fixed width, we can just swap in a new text layout 5331 // if the text height stays the same or if the view height is fixed. 5332 5333 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 5334 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 5335 (mHint == null || mHintLayout != null) && 5336 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 5337 // Static width, so try making a new text layout. 5338 5339 int oldht = mLayout.getHeight(); 5340 int want = mLayout.getWidth(); 5341 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 5342 5343 /* 5344 * No need to bring the text into view, since the size is not 5345 * changing (unless we do the requestLayout(), in which case it 5346 * will happen at measure). 5347 */ 5348 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 5349 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 5350 false); 5351 5352 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 5353 // In a fixed-height view, so use our new text layout. 5354 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 5355 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 5356 invalidate(); 5357 return; 5358 } 5359 5360 // Dynamic height, but height has stayed the same, 5361 // so use our new text layout. 5362 if (mLayout.getHeight() == oldht && 5363 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 5364 invalidate(); 5365 return; 5366 } 5367 } 5368 5369 // We lose: the height has changed and we have a dynamic height. 5370 // Request a new view layout using our new text layout. 5371 requestLayout(); 5372 invalidate(); 5373 } else { 5374 // Dynamic width, so we have no choice but to request a new 5375 // view layout with a new text layout. 5376 5377 nullLayouts(); 5378 requestLayout(); 5379 invalidate(); 5380 } 5381 } 5382 5383 /** 5384 * Returns true if anything changed. 5385 */ 5386 private boolean bringTextIntoView() { 5387 int line = 0; 5388 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5389 line = mLayout.getLineCount() - 1; 5390 } 5391 5392 Layout.Alignment a = mLayout.getParagraphAlignment(line); 5393 int dir = mLayout.getParagraphDirection(line); 5394 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5395 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 5396 int ht = mLayout.getHeight(); 5397 5398 int scrollx, scrolly; 5399 5400 if (a == Layout.Alignment.ALIGN_CENTER) { 5401 /* 5402 * Keep centered if possible, or, if it is too wide to fit, 5403 * keep leading edge in view. 5404 */ 5405 5406 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5407 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5408 5409 if (right - left < hspace) { 5410 scrollx = (right + left) / 2 - hspace / 2; 5411 } else { 5412 if (dir < 0) { 5413 scrollx = right - hspace; 5414 } else { 5415 scrollx = left; 5416 } 5417 } 5418 } else if (a == Layout.Alignment.ALIGN_NORMAL) { 5419 /* 5420 * Keep leading edge in view. 5421 */ 5422 5423 if (dir < 0) { 5424 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5425 scrollx = right - hspace; 5426 } else { 5427 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5428 } 5429 } else /* a == Layout.Alignment.ALIGN_OPPOSITE */ { 5430 /* 5431 * Keep trailing edge in view. 5432 */ 5433 5434 if (dir < 0) { 5435 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5436 } else { 5437 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5438 scrollx = right - hspace; 5439 } 5440 } 5441 5442 if (ht < vspace) { 5443 scrolly = 0; 5444 } else { 5445 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5446 scrolly = ht - vspace; 5447 } else { 5448 scrolly = 0; 5449 } 5450 } 5451 5452 if (scrollx != mScrollX || scrolly != mScrollY) { 5453 scrollTo(scrollx, scrolly); 5454 return true; 5455 } else { 5456 return false; 5457 } 5458 } 5459 5460 /** 5461 * Move the point, specified by the offset, into the view if it is needed. 5462 * This has to be called after layout. Returns true if anything changed. 5463 */ 5464 public boolean bringPointIntoView(int offset) { 5465 boolean changed = false; 5466 5467 int line = mLayout.getLineForOffset(offset); 5468 5469 // FIXME: Is it okay to truncate this, or should we round? 5470 final int x = (int)mLayout.getPrimaryHorizontal(offset); 5471 final int top = mLayout.getLineTop(line); 5472 final int bottom = mLayout.getLineTop(line+1); 5473 5474 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 5475 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 5476 int ht = mLayout.getHeight(); 5477 5478 int grav; 5479 5480 switch (mLayout.getParagraphAlignment(line)) { 5481 case ALIGN_NORMAL: 5482 grav = 1; 5483 break; 5484 5485 case ALIGN_OPPOSITE: 5486 grav = -1; 5487 break; 5488 5489 default: 5490 grav = 0; 5491 } 5492 5493 grav *= mLayout.getParagraphDirection(line); 5494 5495 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5496 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 5497 5498 int hslack = (bottom - top) / 2; 5499 int vslack = hslack; 5500 5501 if (vslack > vspace / 4) 5502 vslack = vspace / 4; 5503 if (hslack > hspace / 4) 5504 hslack = hspace / 4; 5505 5506 int hs = mScrollX; 5507 int vs = mScrollY; 5508 5509 if (top - vs < vslack) 5510 vs = top - vslack; 5511 if (bottom - vs > vspace - vslack) 5512 vs = bottom - (vspace - vslack); 5513 if (ht - vs < vspace) 5514 vs = ht - vspace; 5515 if (0 - vs > 0) 5516 vs = 0; 5517 5518 if (grav != 0) { 5519 if (x - hs < hslack) { 5520 hs = x - hslack; 5521 } 5522 if (x - hs > hspace - hslack) { 5523 hs = x - (hspace - hslack); 5524 } 5525 } 5526 5527 if (grav < 0) { 5528 if (left - hs > 0) 5529 hs = left; 5530 if (right - hs < hspace) 5531 hs = right - hspace; 5532 } else if (grav > 0) { 5533 if (right - hs < hspace) 5534 hs = right - hspace; 5535 if (left - hs > 0) 5536 hs = left; 5537 } else /* grav == 0 */ { 5538 if (right - left <= hspace) { 5539 /* 5540 * If the entire text fits, center it exactly. 5541 */ 5542 hs = left - (hspace - (right - left)) / 2; 5543 } else if (x > right - hslack) { 5544 /* 5545 * If we are near the right edge, keep the right edge 5546 * at the edge of the view. 5547 */ 5548 hs = right - hspace; 5549 } else if (x < left + hslack) { 5550 /* 5551 * If we are near the left edge, keep the left edge 5552 * at the edge of the view. 5553 */ 5554 hs = left; 5555 } else if (left > hs) { 5556 /* 5557 * Is there whitespace visible at the left? Fix it if so. 5558 */ 5559 hs = left; 5560 } else if (right < hs + hspace) { 5561 /* 5562 * Is there whitespace visible at the right? Fix it if so. 5563 */ 5564 hs = right - hspace; 5565 } else { 5566 /* 5567 * Otherwise, float as needed. 5568 */ 5569 if (x - hs < hslack) { 5570 hs = x - hslack; 5571 } 5572 if (x - hs > hspace - hslack) { 5573 hs = x - (hspace - hslack); 5574 } 5575 } 5576 } 5577 5578 if (hs != mScrollX || vs != mScrollY) { 5579 if (mScroller == null) { 5580 scrollTo(hs, vs); 5581 } else { 5582 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 5583 int dx = hs - mScrollX; 5584 int dy = vs - mScrollY; 5585 5586 if (duration > ANIMATED_SCROLL_GAP) { 5587 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 5588 awakenScrollBars(mScroller.getDuration()); 5589 invalidate(); 5590 } else { 5591 if (!mScroller.isFinished()) { 5592 mScroller.abortAnimation(); 5593 } 5594 5595 scrollBy(dx, dy); 5596 } 5597 5598 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 5599 } 5600 5601 changed = true; 5602 } 5603 5604 if (isFocused()) { 5605 // This offsets because getInterestingRect() is in terms of 5606 // viewport coordinates, but requestRectangleOnScreen() 5607 // is in terms of content coordinates. 5608 5609 Rect r = new Rect(); 5610 getInterestingRect(r, x, top, bottom, line); 5611 r.offset(mScrollX, mScrollY); 5612 5613 if (requestRectangleOnScreen(r)) { 5614 changed = true; 5615 } 5616 } 5617 5618 return changed; 5619 } 5620 5621 /** 5622 * Move the cursor, if needed, so that it is at an offset that is visible 5623 * to the user. This will not move the cursor if it represents more than 5624 * one character (a selection range). This will only work if the 5625 * TextView contains spannable text; otherwise it will do nothing. 5626 */ 5627 public boolean moveCursorToVisibleOffset() { 5628 if (!(mText instanceof Spannable)) { 5629 return false; 5630 } 5631 int start = Selection.getSelectionStart(mText); 5632 int end = Selection.getSelectionEnd(mText); 5633 if (start != end) { 5634 return false; 5635 } 5636 5637 // First: make sure the line is visible on screen: 5638 5639 int line = mLayout.getLineForOffset(start); 5640 5641 final int top = mLayout.getLineTop(line); 5642 final int bottom = mLayout.getLineTop(line+1); 5643 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 5644 int vslack = (bottom - top) / 2; 5645 if (vslack > vspace / 4) 5646 vslack = vspace / 4; 5647 final int vs = mScrollY; 5648 5649 if (top < (vs+vslack)) { 5650 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 5651 } else if (bottom > (vspace+vs-vslack)) { 5652 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 5653 } 5654 5655 // Next: make sure the character is visible on screen: 5656 5657 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5658 final int hs = mScrollX; 5659 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 5660 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 5661 5662 int newStart = start; 5663 if (newStart < leftChar) { 5664 newStart = leftChar; 5665 } else if (newStart > rightChar) { 5666 newStart = rightChar; 5667 } 5668 5669 if (newStart != start) { 5670 Selection.setSelection((Spannable)mText, newStart); 5671 return true; 5672 } 5673 5674 return false; 5675 } 5676 5677 @Override 5678 public void computeScroll() { 5679 if (mScroller != null) { 5680 if (mScroller.computeScrollOffset()) { 5681 mScrollX = mScroller.getCurrX(); 5682 mScrollY = mScroller.getCurrY(); 5683 postInvalidate(); // So we draw again 5684 } 5685 } 5686 } 5687 5688 private void getInterestingRect(Rect r, int h, int top, int bottom, 5689 int line) { 5690 int paddingTop = getExtendedPaddingTop(); 5691 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 5692 paddingTop += getVerticalOffset(false); 5693 } 5694 top += paddingTop; 5695 bottom += paddingTop; 5696 h += getCompoundPaddingLeft(); 5697 5698 if (line == 0) 5699 top -= getExtendedPaddingTop(); 5700 if (line == mLayout.getLineCount() - 1) 5701 bottom += getExtendedPaddingBottom(); 5702 5703 r.set(h, top, h+1, bottom); 5704 r.offset(-mScrollX, -mScrollY); 5705 } 5706 5707 @Override 5708 public void debug(int depth) { 5709 super.debug(depth); 5710 5711 String output = debugIndent(depth); 5712 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 5713 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 5714 + "} "; 5715 5716 if (mText != null) { 5717 5718 output += "mText=\"" + mText + "\" "; 5719 if (mLayout != null) { 5720 output += "mLayout width=" + mLayout.getWidth() 5721 + " height=" + mLayout.getHeight(); 5722 } 5723 } else { 5724 output += "mText=NULL"; 5725 } 5726 Log.d(VIEW_LOG_TAG, output); 5727 } 5728 5729 /** 5730 * Convenience for {@link Selection#getSelectionStart}. 5731 */ 5732 @ViewDebug.ExportedProperty 5733 public int getSelectionStart() { 5734 return Selection.getSelectionStart(getText()); 5735 } 5736 5737 /** 5738 * Convenience for {@link Selection#getSelectionEnd}. 5739 */ 5740 @ViewDebug.ExportedProperty 5741 public int getSelectionEnd() { 5742 return Selection.getSelectionEnd(getText()); 5743 } 5744 5745 /** 5746 * Return true iff there is a selection inside this text view. 5747 */ 5748 public boolean hasSelection() { 5749 return getSelectionStart() != getSelectionEnd(); 5750 } 5751 5752 /** 5753 * Sets the properties of this field (lines, horizontally scrolling, 5754 * transformation method) to be for a single-line input. 5755 * 5756 * @attr ref android.R.styleable#TextView_singleLine 5757 */ 5758 public void setSingleLine() { 5759 setSingleLine(true); 5760 } 5761 5762 /** 5763 * If true, sets the properties of this field (lines, horizontally 5764 * scrolling, transformation method) to be for a single-line input; 5765 * if false, restores these to the default conditions. 5766 * Note that calling this with false restores default conditions, 5767 * not necessarily those that were in effect prior to calling 5768 * it with true. 5769 * 5770 * @attr ref android.R.styleable#TextView_singleLine 5771 */ 5772 @android.view.RemotableViewMethod 5773 public void setSingleLine(boolean singleLine) { 5774 if ((mInputType&EditorInfo.TYPE_MASK_CLASS) 5775 == EditorInfo.TYPE_CLASS_TEXT) { 5776 if (singleLine) { 5777 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 5778 } else { 5779 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 5780 } 5781 } 5782 applySingleLine(singleLine, true); 5783 } 5784 5785 private void applySingleLine(boolean singleLine, boolean applyTransformation) { 5786 mSingleLine = singleLine; 5787 if (singleLine) { 5788 setLines(1); 5789 setHorizontallyScrolling(true); 5790 if (applyTransformation) { 5791 setTransformationMethod(SingleLineTransformationMethod. 5792 getInstance()); 5793 } 5794 } else { 5795 setMaxLines(Integer.MAX_VALUE); 5796 setHorizontallyScrolling(false); 5797 if (applyTransformation) { 5798 setTransformationMethod(null); 5799 } 5800 } 5801 } 5802 5803 /** 5804 * Causes words in the text that are longer than the view is wide 5805 * to be ellipsized instead of broken in the middle. You may also 5806 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 5807 * to constrain the text to a single line. Use <code>null</code> 5808 * to turn off ellipsizing. 5809 * 5810 * @attr ref android.R.styleable#TextView_ellipsize 5811 */ 5812 public void setEllipsize(TextUtils.TruncateAt where) { 5813 mEllipsize = where; 5814 5815 if (mLayout != null) { 5816 nullLayouts(); 5817 requestLayout(); 5818 invalidate(); 5819 } 5820 } 5821 5822 /** 5823 * Sets how many times to repeat the marquee animation. Only applied if the 5824 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 5825 * 5826 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 5827 */ 5828 public void setMarqueeRepeatLimit(int marqueeLimit) { 5829 mMarqueeRepeatLimit = marqueeLimit; 5830 } 5831 5832 /** 5833 * Returns where, if anywhere, words that are longer than the view 5834 * is wide should be ellipsized. 5835 */ 5836 @ViewDebug.ExportedProperty 5837 public TextUtils.TruncateAt getEllipsize() { 5838 return mEllipsize; 5839 } 5840 5841 /** 5842 * Set the TextView so that when it takes focus, all the text is 5843 * selected. 5844 * 5845 * @attr ref android.R.styleable#TextView_selectAllOnFocus 5846 */ 5847 @android.view.RemotableViewMethod 5848 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 5849 mSelectAllOnFocus = selectAllOnFocus; 5850 5851 if (selectAllOnFocus && !(mText instanceof Spannable)) { 5852 setText(mText, BufferType.SPANNABLE); 5853 } 5854 } 5855 5856 /** 5857 * Set whether the cursor is visible. The default is true. 5858 * 5859 * @attr ref android.R.styleable#TextView_cursorVisible 5860 */ 5861 @android.view.RemotableViewMethod 5862 public void setCursorVisible(boolean visible) { 5863 mCursorVisible = visible; 5864 invalidate(); 5865 5866 if (visible) { 5867 makeBlink(); 5868 } else if (mBlink != null) { 5869 mBlink.removeCallbacks(mBlink); 5870 } 5871 } 5872 5873 private boolean canMarquee() { 5874 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 5875 return width > 0 && mLayout.getLineWidth(0) > width; 5876 } 5877 5878 private void startMarquee() { 5879 // Do not ellipsize EditText 5880 if (mInput != null) return; 5881 5882 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 5883 return; 5884 } 5885 5886 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 5887 getLineCount() == 1 && canMarquee()) { 5888 5889 if (mMarquee == null) mMarquee = new Marquee(this); 5890 mMarquee.start(mMarqueeRepeatLimit); 5891 } 5892 } 5893 5894 private void stopMarquee() { 5895 if (mMarquee != null && !mMarquee.isStopped()) { 5896 mMarquee.stop(); 5897 } 5898 } 5899 5900 private void startStopMarquee(boolean start) { 5901 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 5902 if (start) { 5903 startMarquee(); 5904 } else { 5905 stopMarquee(); 5906 } 5907 } 5908 } 5909 5910 private static final class Marquee extends Handler { 5911 // TODO: Add an option to configure this 5912 private static final float MARQUEE_DELTA_MAX = 0.07f; 5913 private static final int MARQUEE_DELAY = 1200; 5914 private static final int MARQUEE_RESTART_DELAY = 1200; 5915 private static final int MARQUEE_RESOLUTION = 1000 / 30; 5916 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 5917 5918 private static final byte MARQUEE_STOPPED = 0x0; 5919 private static final byte MARQUEE_STARTING = 0x1; 5920 private static final byte MARQUEE_RUNNING = 0x2; 5921 5922 private static final int MESSAGE_START = 0x1; 5923 private static final int MESSAGE_TICK = 0x2; 5924 private static final int MESSAGE_RESTART = 0x3; 5925 5926 private final WeakReference<TextView> mView; 5927 5928 private byte mStatus = MARQUEE_STOPPED; 5929 private float mScrollUnit; 5930 private float mMaxScroll; 5931 float mMaxFadeScroll; 5932 private float mGhostStart; 5933 private float mGhostOffset; 5934 private float mFadeStop; 5935 private int mRepeatLimit; 5936 5937 float mScroll; 5938 5939 Marquee(TextView v) { 5940 final float density = v.getContext().getResources().getDisplayMetrics().density; 5941 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / (float) MARQUEE_RESOLUTION; 5942 mView = new WeakReference<TextView>(v); 5943 } 5944 5945 @Override 5946 public void handleMessage(Message msg) { 5947 switch (msg.what) { 5948 case MESSAGE_START: 5949 mStatus = MARQUEE_RUNNING; 5950 tick(); 5951 break; 5952 case MESSAGE_TICK: 5953 tick(); 5954 break; 5955 case MESSAGE_RESTART: 5956 if (mStatus == MARQUEE_RUNNING) { 5957 if (mRepeatLimit >= 0) { 5958 mRepeatLimit--; 5959 } 5960 start(mRepeatLimit); 5961 } 5962 break; 5963 } 5964 } 5965 5966 void tick() { 5967 if (mStatus != MARQUEE_RUNNING) { 5968 return; 5969 } 5970 5971 removeMessages(MESSAGE_TICK); 5972 5973 final TextView textView = mView.get(); 5974 if (textView != null && (textView.isFocused() || textView.isSelected())) { 5975 mScroll += mScrollUnit; 5976 if (mScroll > mMaxScroll) { 5977 mScroll = mMaxScroll; 5978 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 5979 } else { 5980 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 5981 } 5982 textView.invalidate(); 5983 } 5984 } 5985 5986 void stop() { 5987 mStatus = MARQUEE_STOPPED; 5988 removeMessages(MESSAGE_START); 5989 removeMessages(MESSAGE_RESTART); 5990 removeMessages(MESSAGE_TICK); 5991 resetScroll(); 5992 } 5993 5994 private void resetScroll() { 5995 mScroll = 0.0f; 5996 final TextView textView = mView.get(); 5997 if (textView != null) textView.invalidate(); 5998 } 5999 6000 void start(int repeatLimit) { 6001 if (repeatLimit == 0) { 6002 stop(); 6003 return; 6004 } 6005 mRepeatLimit = repeatLimit; 6006 final TextView textView = mView.get(); 6007 if (textView != null && textView.mLayout != null) { 6008 mStatus = MARQUEE_STARTING; 6009 mScroll = 0.0f; 6010 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 6011 textView.getCompoundPaddingRight(); 6012 final float lineWidth = textView.mLayout.getLineWidth(0); 6013 final float gap = textWidth / 3.0f; 6014 mGhostStart = lineWidth - textWidth + gap; 6015 mMaxScroll = mGhostStart + textWidth; 6016 mGhostOffset = lineWidth + gap; 6017 mFadeStop = lineWidth + textWidth / 6.0f; 6018 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 6019 6020 textView.invalidate(); 6021 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 6022 } 6023 } 6024 6025 float getGhostOffset() { 6026 return mGhostOffset; 6027 } 6028 6029 boolean shouldDrawLeftFade() { 6030 return mScroll <= mFadeStop; 6031 } 6032 6033 boolean shouldDrawGhost() { 6034 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 6035 } 6036 6037 boolean isRunning() { 6038 return mStatus == MARQUEE_RUNNING; 6039 } 6040 6041 boolean isStopped() { 6042 return mStatus == MARQUEE_STOPPED; 6043 } 6044 } 6045 6046 /** 6047 * This method is called when the text is changed, in case any 6048 * subclasses would like to know. 6049 * 6050 * @param text The text the TextView is displaying. 6051 * @param start The offset of the start of the range of the text 6052 * that was modified. 6053 * @param before The offset of the former end of the range of the 6054 * text that was modified. If text was simply inserted, 6055 * this will be the same as <code>start</code>. 6056 * If text was replaced with new text or deleted, the 6057 * length of the old text was <code>before-start</code>. 6058 * @param after The offset of the end of the range of the text 6059 * that was modified. If text was simply deleted, 6060 * this will be the same as <code>start</code>. 6061 * If text was replaced with new text or inserted, 6062 * the length of the new text is <code>after-start</code>. 6063 */ 6064 protected void onTextChanged(CharSequence text, 6065 int start, int before, int after) { 6066 } 6067 6068 /** 6069 * This method is called when the selection has changed, in case any 6070 * subclasses would like to know. 6071 * 6072 * @param selStart The new selection start location. 6073 * @param selEnd The new selection end location. 6074 */ 6075 protected void onSelectionChanged(int selStart, int selEnd) { 6076 } 6077 6078 /** 6079 * Adds a TextWatcher to the list of those whose methods are called 6080 * whenever this TextView's text changes. 6081 * <p> 6082 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 6083 * not called after {@link #setText} calls. Now, doing {@link #setText} 6084 * if there are any text changed listeners forces the buffer type to 6085 * Editable if it would not otherwise be and does call this method. 6086 */ 6087 public void addTextChangedListener(TextWatcher watcher) { 6088 if (mListeners == null) { 6089 mListeners = new ArrayList<TextWatcher>(); 6090 } 6091 6092 mListeners.add(watcher); 6093 } 6094 6095 /** 6096 * Removes the specified TextWatcher from the list of those whose 6097 * methods are called 6098 * whenever this TextView's text changes. 6099 */ 6100 public void removeTextChangedListener(TextWatcher watcher) { 6101 if (mListeners != null) { 6102 int i = mListeners.indexOf(watcher); 6103 6104 if (i >= 0) { 6105 mListeners.remove(i); 6106 } 6107 } 6108 } 6109 6110 private void sendBeforeTextChanged(CharSequence text, int start, int before, 6111 int after) { 6112 if (mListeners != null) { 6113 final ArrayList<TextWatcher> list = mListeners; 6114 final int count = list.size(); 6115 for (int i = 0; i < count; i++) { 6116 list.get(i).beforeTextChanged(text, start, before, after); 6117 } 6118 } 6119 } 6120 6121 /** 6122 * Not private so it can be called from an inner class without going 6123 * through a thunk. 6124 */ 6125 void sendOnTextChanged(CharSequence text, int start, int before, 6126 int after) { 6127 if (mListeners != null) { 6128 final ArrayList<TextWatcher> list = mListeners; 6129 final int count = list.size(); 6130 for (int i = 0; i < count; i++) { 6131 list.get(i).onTextChanged(text, start, before, after); 6132 } 6133 } 6134 } 6135 6136 /** 6137 * Not private so it can be called from an inner class without going 6138 * through a thunk. 6139 */ 6140 void sendAfterTextChanged(Editable text) { 6141 if (mListeners != null) { 6142 final ArrayList<TextWatcher> list = mListeners; 6143 final int count = list.size(); 6144 for (int i = 0; i < count; i++) { 6145 list.get(i).afterTextChanged(text); 6146 } 6147 } 6148 } 6149 6150 /** 6151 * Not private so it can be called from an inner class without going 6152 * through a thunk. 6153 */ 6154 void handleTextChanged(CharSequence buffer, int start, 6155 int before, int after) { 6156 final InputMethodState ims = mInputMethodState; 6157 if (ims == null || ims.mBatchEditNesting == 0) { 6158 updateAfterEdit(); 6159 } 6160 if (ims != null) { 6161 ims.mContentChanged = true; 6162 if (ims.mChangedStart < 0) { 6163 ims.mChangedStart = start; 6164 ims.mChangedEnd = start+before; 6165 } else { 6166 if (ims.mChangedStart > start) ims.mChangedStart = start; 6167 if (ims.mChangedEnd < (start+before)) ims.mChangedEnd = start+before; 6168 } 6169 ims.mChangedDelta += after-before; 6170 } 6171 6172 sendOnTextChanged(buffer, start, before, after); 6173 onTextChanged(buffer, start, before, after); 6174 } 6175 6176 /** 6177 * Not private so it can be called from an inner class without going 6178 * through a thunk. 6179 */ 6180 void spanChange(Spanned buf, Object what, int oldStart, int newStart, 6181 int oldEnd, int newEnd) { 6182 // XXX Make the start and end move together if this ends up 6183 // spending too much time invalidating. 6184 6185 boolean selChanged = false; 6186 int newSelStart=-1, newSelEnd=-1; 6187 6188 final InputMethodState ims = mInputMethodState; 6189 6190 if (what == Selection.SELECTION_END) { 6191 mHighlightPathBogus = true; 6192 selChanged = true; 6193 newSelEnd = newStart; 6194 6195 if (!isFocused()) { 6196 mSelectionMoved = true; 6197 } 6198 6199 if (oldStart >= 0 || newStart >= 0) { 6200 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 6201 registerForPreDraw(); 6202 6203 if (isFocused()) { 6204 mShowCursor = SystemClock.uptimeMillis(); 6205 makeBlink(); 6206 } 6207 } 6208 } 6209 6210 if (what == Selection.SELECTION_START) { 6211 mHighlightPathBogus = true; 6212 selChanged = true; 6213 newSelStart = newStart; 6214 6215 if (!isFocused()) { 6216 mSelectionMoved = true; 6217 } 6218 6219 if (oldStart >= 0 || newStart >= 0) { 6220 int end = Selection.getSelectionEnd(buf); 6221 invalidateCursor(end, oldStart, newStart); 6222 } 6223 } 6224 6225 if (selChanged) { 6226 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 6227 if (newSelStart < 0) { 6228 newSelStart = Selection.getSelectionStart(buf); 6229 } 6230 if (newSelEnd < 0) { 6231 newSelEnd = Selection.getSelectionEnd(buf); 6232 } 6233 onSelectionChanged(newSelStart, newSelEnd); 6234 } 6235 } 6236 6237 if (what instanceof UpdateAppearance || 6238 what instanceof ParagraphStyle) { 6239 if (ims == null || ims.mBatchEditNesting == 0) { 6240 invalidate(); 6241 mHighlightPathBogus = true; 6242 checkForResize(); 6243 } else { 6244 ims.mContentChanged = true; 6245 } 6246 } 6247 6248 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 6249 mHighlightPathBogus = true; 6250 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 6251 ims.mSelectionModeChanged = true; 6252 } 6253 6254 if (Selection.getSelectionStart(buf) >= 0) { 6255 if (ims == null || ims.mBatchEditNesting == 0) { 6256 invalidateCursor(); 6257 } else { 6258 ims.mCursorChanged = true; 6259 } 6260 } 6261 } 6262 6263 if (what instanceof ParcelableSpan) { 6264 // If this is a span that can be sent to a remote process, 6265 // the current extract editor would be interested in it. 6266 if (ims != null && ims.mExtracting != null) { 6267 if (ims.mBatchEditNesting != 0) { 6268 if (oldStart >= 0) { 6269 if (ims.mChangedStart > oldStart) { 6270 ims.mChangedStart = oldStart; 6271 } 6272 if (ims.mChangedStart > oldEnd) { 6273 ims.mChangedStart = oldEnd; 6274 } 6275 } 6276 if (newStart >= 0) { 6277 if (ims.mChangedStart > newStart) { 6278 ims.mChangedStart = newStart; 6279 } 6280 if (ims.mChangedStart > newEnd) { 6281 ims.mChangedStart = newEnd; 6282 } 6283 } 6284 } else { 6285 if (DEBUG_EXTRACT) Log.v(TAG, "Span change outside of batch: " 6286 + oldStart + "-" + oldEnd + "," 6287 + newStart + "-" + newEnd + what); 6288 ims.mContentChanged = true; 6289 } 6290 } 6291 } 6292 } 6293 6294 private class ChangeWatcher 6295 implements TextWatcher, SpanWatcher { 6296 6297 private CharSequence mBeforeText; 6298 6299 public void beforeTextChanged(CharSequence buffer, int start, 6300 int before, int after) { 6301 if (DEBUG_EXTRACT) Log.v(TAG, "beforeTextChanged start=" + start 6302 + " before=" + before + " after=" + after + ": " + buffer); 6303 6304 if (AccessibilityManager.getInstance(mContext).isEnabled() 6305 && !isPasswordInputType(mInputType)) { 6306 mBeforeText = buffer.toString(); 6307 } 6308 6309 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 6310 } 6311 6312 public void onTextChanged(CharSequence buffer, int start, 6313 int before, int after) { 6314 if (DEBUG_EXTRACT) Log.v(TAG, "onTextChanged start=" + start 6315 + " before=" + before + " after=" + after + ": " + buffer); 6316 TextView.this.handleTextChanged(buffer, start, before, after); 6317 6318 if (AccessibilityManager.getInstance(mContext).isEnabled() && 6319 (isFocused() || isSelected() && 6320 isShown())) { 6321 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 6322 mBeforeText = null; 6323 } 6324 } 6325 6326 public void afterTextChanged(Editable buffer) { 6327 if (DEBUG_EXTRACT) Log.v(TAG, "afterTextChanged: " + buffer); 6328 TextView.this.sendAfterTextChanged(buffer); 6329 6330 if (MetaKeyKeyListener.getMetaState(buffer, 6331 MetaKeyKeyListener.META_SELECTING) != 0) { 6332 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 6333 } 6334 } 6335 6336 public void onSpanChanged(Spannable buf, 6337 Object what, int s, int e, int st, int en) { 6338 if (DEBUG_EXTRACT) Log.v(TAG, "onSpanChanged s=" + s + " e=" + e 6339 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 6340 TextView.this.spanChange(buf, what, s, st, e, en); 6341 } 6342 6343 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 6344 if (DEBUG_EXTRACT) Log.v(TAG, "onSpanAdded s=" + s + " e=" + e 6345 + " what=" + what + ": " + buf); 6346 TextView.this.spanChange(buf, what, -1, s, -1, e); 6347 } 6348 6349 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 6350 if (DEBUG_EXTRACT) Log.v(TAG, "onSpanRemoved s=" + s + " e=" + e 6351 + " what=" + what + ": " + buf); 6352 TextView.this.spanChange(buf, what, s, -1, e, -1); 6353 } 6354 } 6355 6356 private void makeBlink() { 6357 if (!mCursorVisible) { 6358 if (mBlink != null) { 6359 mBlink.removeCallbacks(mBlink); 6360 } 6361 6362 return; 6363 } 6364 6365 if (mBlink == null) 6366 mBlink = new Blink(this); 6367 6368 mBlink.removeCallbacks(mBlink); 6369 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 6370 } 6371 6372 /** 6373 * @hide 6374 */ 6375 @Override 6376 public void dispatchFinishTemporaryDetach() { 6377 mDispatchTemporaryDetach = true; 6378 super.dispatchFinishTemporaryDetach(); 6379 mDispatchTemporaryDetach = false; 6380 } 6381 6382 @Override 6383 public void onStartTemporaryDetach() { 6384 super.onStartTemporaryDetach(); 6385 // Only track when onStartTemporaryDetach() is called directly, 6386 // usually because this instance is an editable field in a list 6387 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 6388 } 6389 6390 @Override 6391 public void onFinishTemporaryDetach() { 6392 super.onFinishTemporaryDetach(); 6393 // Only track when onStartTemporaryDetach() is called directly, 6394 // usually because this instance is an editable field in a list 6395 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 6396 } 6397 6398 @Override 6399 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 6400 if (mTemporaryDetach) { 6401 // If we are temporarily in the detach state, then do nothing. 6402 super.onFocusChanged(focused, direction, previouslyFocusedRect); 6403 return; 6404 } 6405 6406 mShowCursor = SystemClock.uptimeMillis(); 6407 6408 ensureEndedBatchEdit(); 6409 6410 if (focused) { 6411 int selStart = getSelectionStart(); 6412 int selEnd = getSelectionEnd(); 6413 6414 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 6415 boolean selMoved = mSelectionMoved; 6416 6417 if (mMovement != null) { 6418 mMovement.onTakeFocus(this, (Spannable) mText, direction); 6419 } 6420 6421 if (mSelectAllOnFocus) { 6422 Selection.setSelection((Spannable) mText, 0, mText.length()); 6423 } 6424 6425 if (selMoved && selStart >= 0 && selEnd >= 0) { 6426 /* 6427 * Someone intentionally set the selection, so let them 6428 * do whatever it is that they wanted to do instead of 6429 * the default on-focus behavior. We reset the selection 6430 * here instead of just skipping the onTakeFocus() call 6431 * because some movement methods do something other than 6432 * just setting the selection in theirs and we still 6433 * need to go through that path. 6434 */ 6435 6436 Selection.setSelection((Spannable) mText, selStart, selEnd); 6437 } 6438 mTouchFocusSelected = true; 6439 } 6440 6441 mFrozenWithFocus = false; 6442 mSelectionMoved = false; 6443 6444 if (mText instanceof Spannable) { 6445 Spannable sp = (Spannable) mText; 6446 MetaKeyKeyListener.resetMetaState(sp); 6447 } 6448 6449 makeBlink(); 6450 6451 if (mError != null) { 6452 showError(); 6453 } 6454 } else { 6455 if (mError != null) { 6456 hideError(); 6457 } 6458 // Don't leave us in the middle of a batch edit. 6459 onEndBatchEdit(); 6460 } 6461 6462 startStopMarquee(focused); 6463 6464 if (mTransformation != null) { 6465 mTransformation.onFocusChanged(this, mText, focused, direction, 6466 previouslyFocusedRect); 6467 } 6468 6469 super.onFocusChanged(focused, direction, previouslyFocusedRect); 6470 } 6471 6472 @Override 6473 public void onWindowFocusChanged(boolean hasWindowFocus) { 6474 super.onWindowFocusChanged(hasWindowFocus); 6475 6476 if (hasWindowFocus) { 6477 if (mBlink != null) { 6478 mBlink.uncancel(); 6479 6480 if (isFocused()) { 6481 mShowCursor = SystemClock.uptimeMillis(); 6482 makeBlink(); 6483 } 6484 } 6485 } else { 6486 if (mBlink != null) { 6487 mBlink.cancel(); 6488 } 6489 // Don't leave us in the middle of a batch edit. 6490 onEndBatchEdit(); 6491 if (mInputContentType != null) { 6492 mInputContentType.enterDown = false; 6493 } 6494 } 6495 6496 startStopMarquee(hasWindowFocus); 6497 } 6498 6499 /** 6500 * Use {@link BaseInputConnection#removeComposingSpans 6501 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 6502 * state from this text view. 6503 */ 6504 public void clearComposingText() { 6505 if (mText instanceof Spannable) { 6506 BaseInputConnection.removeComposingSpans((Spannable)mText); 6507 } 6508 } 6509 6510 @Override 6511 public void setSelected(boolean selected) { 6512 boolean wasSelected = isSelected(); 6513 6514 super.setSelected(selected); 6515 6516 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6517 if (selected) { 6518 startMarquee(); 6519 } else { 6520 stopMarquee(); 6521 } 6522 } 6523 } 6524 6525 class CommitSelectionReceiver extends ResultReceiver { 6526 int mNewStart; 6527 int mNewEnd; 6528 6529 CommitSelectionReceiver() { 6530 super(getHandler()); 6531 } 6532 6533 protected void onReceiveResult(int resultCode, Bundle resultData) { 6534 if (resultCode != InputMethodManager.RESULT_SHOWN) { 6535 final int len = mText.length(); 6536 if (mNewStart > len) { 6537 mNewStart = len; 6538 } 6539 if (mNewEnd > len) { 6540 mNewEnd = len; 6541 } 6542 Selection.setSelection((Spannable)mText, mNewStart, mNewEnd); 6543 } 6544 } 6545 } 6546 6547 @Override 6548 public boolean onTouchEvent(MotionEvent event) { 6549 final int action = event.getAction(); 6550 if (action == MotionEvent.ACTION_DOWN) { 6551 // Reset this state; it will be re-set if super.onTouchEvent 6552 // causes focus to move to the view. 6553 mTouchFocusSelected = false; 6554 mScrolled = false; 6555 } 6556 6557 final boolean superResult = super.onTouchEvent(event); 6558 6559 /* 6560 * Don't handle the release after a long press, because it will 6561 * move the selection away from whatever the menu action was 6562 * trying to affect. 6563 */ 6564 if (mEatTouchRelease && action == MotionEvent.ACTION_UP) { 6565 mEatTouchRelease = false; 6566 return superResult; 6567 } 6568 6569 if ((mMovement != null || onCheckIsTextEditor()) && mText instanceof Spannable && mLayout != null) { 6570 6571 boolean handled = false; 6572 6573 int oldSelStart = Selection.getSelectionStart(mText); 6574 int oldSelEnd = Selection.getSelectionEnd(mText); 6575 6576 if (mMovement != null) { 6577 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 6578 } 6579 6580 if (mText instanceof Editable && onCheckIsTextEditor()) { 6581 if (action == MotionEvent.ACTION_UP && isFocused() && !mScrolled) { 6582 InputMethodManager imm = (InputMethodManager) 6583 getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 6584 6585 // This is going to be gross... if tapping on the text view 6586 // causes the IME to be displayed, we don't want the selection 6587 // to change. But the selection has already changed, and 6588 // we won't know right away whether the IME is getting 6589 // displayed, so... 6590 6591 int newSelStart = Selection.getSelectionStart(mText); 6592 int newSelEnd = Selection.getSelectionEnd(mText); 6593 CommitSelectionReceiver csr = null; 6594 if (newSelStart != oldSelStart || newSelEnd != oldSelEnd) { 6595 csr = new CommitSelectionReceiver(); 6596 csr.mNewStart = newSelStart; 6597 csr.mNewEnd = newSelEnd; 6598 } 6599 6600 if (imm.showSoftInput(this, 0, csr) && csr != null) { 6601 // The IME might get shown -- revert to the old 6602 // selection, and change to the new when we finally 6603 // find out of it is okay. 6604 Selection.setSelection((Spannable)mText, oldSelStart, oldSelEnd); 6605 handled = true; 6606 } 6607 } 6608 } 6609 6610 if (handled) { 6611 return true; 6612 } 6613 } 6614 6615 return superResult; 6616 } 6617 6618 /** 6619 * Returns true, only while processing a touch gesture, if the initial 6620 * touch down event caused focus to move to the text view and as a result 6621 * its selection changed. Only valid while processing the touch gesture 6622 * of interest. 6623 */ 6624 public boolean didTouchFocusSelect() { 6625 return mTouchFocusSelected; 6626 } 6627 6628 @Override 6629 public void cancelLongPress() { 6630 super.cancelLongPress(); 6631 mScrolled = true; 6632 } 6633 6634 @Override 6635 public boolean onTrackballEvent(MotionEvent event) { 6636 if (mMovement != null && mText instanceof Spannable && 6637 mLayout != null) { 6638 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 6639 return true; 6640 } 6641 } 6642 6643 return super.onTrackballEvent(event); 6644 } 6645 6646 public void setScroller(Scroller s) { 6647 mScroller = s; 6648 } 6649 6650 private static class Blink extends Handler implements Runnable { 6651 private WeakReference<TextView> mView; 6652 private boolean mCancelled; 6653 6654 public Blink(TextView v) { 6655 mView = new WeakReference<TextView>(v); 6656 } 6657 6658 public void run() { 6659 if (mCancelled) { 6660 return; 6661 } 6662 6663 removeCallbacks(Blink.this); 6664 6665 TextView tv = mView.get(); 6666 6667 if (tv != null && tv.isFocused()) { 6668 int st = Selection.getSelectionStart(tv.mText); 6669 int en = Selection.getSelectionEnd(tv.mText); 6670 6671 if (st == en && st >= 0 && en >= 0) { 6672 if (tv.mLayout != null) { 6673 tv.invalidateCursorPath(); 6674 } 6675 6676 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 6677 } 6678 } 6679 } 6680 6681 void cancel() { 6682 if (!mCancelled) { 6683 removeCallbacks(Blink.this); 6684 mCancelled = true; 6685 } 6686 } 6687 6688 void uncancel() { 6689 mCancelled = false; 6690 } 6691 } 6692 6693 @Override 6694 protected float getLeftFadingEdgeStrength() { 6695 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6696 if (mMarquee != null && !mMarquee.isStopped()) { 6697 final Marquee marquee = mMarquee; 6698 if (marquee.shouldDrawLeftFade()) { 6699 return marquee.mScroll / getHorizontalFadingEdgeLength(); 6700 } else { 6701 return 0.0f; 6702 } 6703 } else if (getLineCount() == 1) { 6704 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 6705 case Gravity.LEFT: 6706 return 0.0f; 6707 case Gravity.RIGHT: 6708 return (mLayout.getLineRight(0) - (mRight - mLeft) - 6709 getCompoundPaddingLeft() - getCompoundPaddingRight() - 6710 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 6711 case Gravity.CENTER_HORIZONTAL: 6712 return 0.0f; 6713 } 6714 } 6715 } 6716 return super.getLeftFadingEdgeStrength(); 6717 } 6718 6719 @Override 6720 protected float getRightFadingEdgeStrength() { 6721 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6722 if (mMarquee != null && !mMarquee.isStopped()) { 6723 final Marquee marquee = mMarquee; 6724 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 6725 } else if (getLineCount() == 1) { 6726 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 6727 case Gravity.LEFT: 6728 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 6729 getCompoundPaddingRight(); 6730 final float lineWidth = mLayout.getLineWidth(0); 6731 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 6732 case Gravity.RIGHT: 6733 return 0.0f; 6734 case Gravity.CENTER_HORIZONTAL: 6735 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 6736 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 6737 getHorizontalFadingEdgeLength(); 6738 } 6739 } 6740 } 6741 return super.getRightFadingEdgeStrength(); 6742 } 6743 6744 @Override 6745 protected int computeHorizontalScrollRange() { 6746 if (mLayout != null) 6747 return mLayout.getWidth(); 6748 6749 return super.computeHorizontalScrollRange(); 6750 } 6751 6752 @Override 6753 protected int computeVerticalScrollRange() { 6754 if (mLayout != null) 6755 return mLayout.getHeight(); 6756 6757 return super.computeVerticalScrollRange(); 6758 } 6759 6760 @Override 6761 protected int computeVerticalScrollExtent() { 6762 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 6763 } 6764 6765 public enum BufferType { 6766 NORMAL, SPANNABLE, EDITABLE, 6767 } 6768 6769 /** 6770 * Returns the TextView_textColor attribute from the 6771 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 6772 * from the TextView_textAppearance attribute, if TextView_textColor 6773 * was not set directly. 6774 */ 6775 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 6776 ColorStateList colors; 6777 colors = attrs.getColorStateList(com.android.internal.R.styleable. 6778 TextView_textColor); 6779 6780 if (colors == null) { 6781 int ap = attrs.getResourceId(com.android.internal.R.styleable. 6782 TextView_textAppearance, -1); 6783 if (ap != -1) { 6784 TypedArray appearance; 6785 appearance = context.obtainStyledAttributes(ap, 6786 com.android.internal.R.styleable.TextAppearance); 6787 colors = appearance.getColorStateList(com.android.internal.R.styleable. 6788 TextAppearance_textColor); 6789 appearance.recycle(); 6790 } 6791 } 6792 6793 return colors; 6794 } 6795 6796 /** 6797 * Returns the default color from the TextView_textColor attribute 6798 * from the AttributeSet, if set, or the default color from the 6799 * TextAppearance_textColor from the TextView_textAppearance attribute, 6800 * if TextView_textColor was not set directly. 6801 */ 6802 public static int getTextColor(Context context, 6803 TypedArray attrs, 6804 int def) { 6805 ColorStateList colors = getTextColors(context, attrs); 6806 6807 if (colors == null) { 6808 return def; 6809 } else { 6810 return colors.getDefaultColor(); 6811 } 6812 } 6813 6814 @Override 6815 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 6816 switch (keyCode) { 6817 case KeyEvent.KEYCODE_A: 6818 if (canSelectAll()) { 6819 return onTextContextMenuItem(ID_SELECT_ALL); 6820 } 6821 6822 break; 6823 6824 case KeyEvent.KEYCODE_X: 6825 if (canCut()) { 6826 return onTextContextMenuItem(ID_CUT); 6827 } 6828 6829 break; 6830 6831 case KeyEvent.KEYCODE_C: 6832 if (canCopy()) { 6833 return onTextContextMenuItem(ID_COPY); 6834 } 6835 6836 break; 6837 6838 case KeyEvent.KEYCODE_V: 6839 if (canPaste()) { 6840 return onTextContextMenuItem(ID_PASTE); 6841 } 6842 6843 break; 6844 } 6845 6846 return super.onKeyShortcut(keyCode, event); 6847 } 6848 6849 private boolean canSelectAll() { 6850 if (mText instanceof Spannable && mText.length() != 0 && 6851 mMovement != null && mMovement.canSelectArbitrarily()) { 6852 return true; 6853 } 6854 6855 return false; 6856 } 6857 6858 private boolean canSelectText() { 6859 if (mText instanceof Spannable && mText.length() != 0 && 6860 mMovement != null && mMovement.canSelectArbitrarily()) { 6861 return true; 6862 } 6863 6864 return false; 6865 } 6866 6867 private boolean canCut() { 6868 if (mTransformation instanceof PasswordTransformationMethod) { 6869 return false; 6870 } 6871 6872 if (mText.length() > 0 && getSelectionStart() >= 0) { 6873 if (mText instanceof Editable && mInput != null) { 6874 return true; 6875 } 6876 } 6877 6878 return false; 6879 } 6880 6881 private boolean canCopy() { 6882 if (mTransformation instanceof PasswordTransformationMethod) { 6883 return false; 6884 } 6885 6886 if (mText.length() > 0 && getSelectionStart() >= 0) { 6887 return true; 6888 } 6889 6890 return false; 6891 } 6892 6893 private boolean canPaste() { 6894 if (mText instanceof Editable && mInput != null && 6895 getSelectionStart() >= 0 && getSelectionEnd() >= 0) { 6896 ClipboardManager clip = (ClipboardManager)getContext() 6897 .getSystemService(Context.CLIPBOARD_SERVICE); 6898 if (clip.hasText()) { 6899 return true; 6900 } 6901 } 6902 6903 return false; 6904 } 6905 6906 /** 6907 * Returns a word to add to the dictionary from the context menu, 6908 * or null if there is no cursor or no word at the cursor. 6909 */ 6910 private String getWordForDictionary() { 6911 /* 6912 * Quick return if the input type is one where adding words 6913 * to the dictionary doesn't make any sense. 6914 */ 6915 int klass = mInputType & InputType.TYPE_MASK_CLASS; 6916 if (klass == InputType.TYPE_CLASS_NUMBER || 6917 klass == InputType.TYPE_CLASS_PHONE || 6918 klass == InputType.TYPE_CLASS_DATETIME) { 6919 return null; 6920 } 6921 6922 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 6923 if (variation == InputType.TYPE_TEXT_VARIATION_URI || 6924 variation == InputType.TYPE_TEXT_VARIATION_PASSWORD || 6925 variation == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD || 6926 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 6927 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 6928 return null; 6929 } 6930 6931 int end = getSelectionEnd(); 6932 6933 if (end < 0) { 6934 return null; 6935 } 6936 6937 int start = end; 6938 int len = mText.length(); 6939 6940 for (; start > 0; start--) { 6941 char c = mTransformed.charAt(start - 1); 6942 int type = Character.getType(c); 6943 6944 if (c != '\'' && 6945 type != Character.UPPERCASE_LETTER && 6946 type != Character.LOWERCASE_LETTER && 6947 type != Character.TITLECASE_LETTER && 6948 type != Character.MODIFIER_LETTER && 6949 type != Character.DECIMAL_DIGIT_NUMBER) { 6950 break; 6951 } 6952 } 6953 6954 for (; end < len; end++) { 6955 char c = mTransformed.charAt(end); 6956 int type = Character.getType(c); 6957 6958 if (c != '\'' && 6959 type != Character.UPPERCASE_LETTER && 6960 type != Character.LOWERCASE_LETTER && 6961 type != Character.TITLECASE_LETTER && 6962 type != Character.MODIFIER_LETTER && 6963 type != Character.DECIMAL_DIGIT_NUMBER) { 6964 break; 6965 } 6966 } 6967 6968 boolean hasLetter = false; 6969 for (int i = start; i < end; i++) { 6970 if (Character.isLetter(mTransformed.charAt(i))) { 6971 hasLetter = true; 6972 break; 6973 } 6974 } 6975 if (!hasLetter) { 6976 return null; 6977 } 6978 6979 if (start == end) { 6980 return null; 6981 } 6982 6983 if (end - start > 48) { 6984 return null; 6985 } 6986 6987 return TextUtils.substring(mTransformed, start, end); 6988 } 6989 6990 @Override 6991 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 6992 if (!isShown()) { 6993 return false; 6994 } 6995 6996 final boolean isPassword = isPasswordInputType(mInputType); 6997 6998 if (!isPassword) { 6999 CharSequence text = getText(); 7000 if (TextUtils.isEmpty(text)) { 7001 text = getHint(); 7002 } 7003 if (!TextUtils.isEmpty(text)) { 7004 if (text.length() > AccessibilityEvent.MAX_TEXT_LENGTH) { 7005 text = text.subSequence(0, AccessibilityEvent.MAX_TEXT_LENGTH + 1); 7006 } 7007 event.getText().add(text); 7008 } 7009 } else { 7010 event.setPassword(isPassword); 7011 } 7012 return false; 7013 } 7014 7015 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 7016 int fromIndex, int removedCount, int addedCount) { 7017 AccessibilityEvent event = 7018 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 7019 event.setFromIndex(fromIndex); 7020 event.setRemovedCount(removedCount); 7021 event.setAddedCount(addedCount); 7022 event.setBeforeText(beforeText); 7023 sendAccessibilityEventUnchecked(event); 7024 } 7025 7026 @Override 7027 protected void onCreateContextMenu(ContextMenu menu) { 7028 super.onCreateContextMenu(menu); 7029 boolean added = false; 7030 7031 if (!isFocused()) { 7032 if (isFocusable() && mInput != null) { 7033 if (canCopy()) { 7034 MenuHandler handler = new MenuHandler(); 7035 int name = com.android.internal.R.string.copyAll; 7036 7037 menu.add(0, ID_COPY, 0, name). 7038 setOnMenuItemClickListener(handler). 7039 setAlphabeticShortcut('c'); 7040 menu.setHeaderTitle(com.android.internal.R.string. 7041 editTextMenuTitle); 7042 } 7043 } 7044 7045 return; 7046 } 7047 7048 MenuHandler handler = new MenuHandler(); 7049 7050 if (canSelectAll()) { 7051 menu.add(0, ID_SELECT_ALL, 0, 7052 com.android.internal.R.string.selectAll). 7053 setOnMenuItemClickListener(handler). 7054 setAlphabeticShortcut('a'); 7055 added = true; 7056 } 7057 7058 boolean selection = getSelectionStart() != getSelectionEnd(); 7059 7060 if (canSelectText()) { 7061 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 7062 menu.add(0, ID_STOP_SELECTING_TEXT, 0, 7063 com.android.internal.R.string.stopSelectingText). 7064 setOnMenuItemClickListener(handler); 7065 added = true; 7066 } else { 7067 menu.add(0, ID_START_SELECTING_TEXT, 0, 7068 com.android.internal.R.string.selectText). 7069 setOnMenuItemClickListener(handler); 7070 added = true; 7071 } 7072 } 7073 7074 if (canCut()) { 7075 int name; 7076 if (selection) { 7077 name = com.android.internal.R.string.cut; 7078 } else { 7079 name = com.android.internal.R.string.cutAll; 7080 } 7081 7082 menu.add(0, ID_CUT, 0, name). 7083 setOnMenuItemClickListener(handler). 7084 setAlphabeticShortcut('x'); 7085 added = true; 7086 } 7087 7088 if (canCopy()) { 7089 int name; 7090 if (selection) { 7091 name = com.android.internal.R.string.copy; 7092 } else { 7093 name = com.android.internal.R.string.copyAll; 7094 } 7095 7096 menu.add(0, ID_COPY, 0, name). 7097 setOnMenuItemClickListener(handler). 7098 setAlphabeticShortcut('c'); 7099 added = true; 7100 } 7101 7102 if (canPaste()) { 7103 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 7104 setOnMenuItemClickListener(handler). 7105 setAlphabeticShortcut('v'); 7106 added = true; 7107 } 7108 7109 if (mText instanceof Spanned) { 7110 int selStart = getSelectionStart(); 7111 int selEnd = getSelectionEnd(); 7112 7113 int min = Math.min(selStart, selEnd); 7114 int max = Math.max(selStart, selEnd); 7115 7116 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, 7117 URLSpan.class); 7118 if (urls.length == 1) { 7119 menu.add(0, ID_COPY_URL, 0, 7120 com.android.internal.R.string.copyUrl). 7121 setOnMenuItemClickListener(handler); 7122 added = true; 7123 } 7124 } 7125 7126 if (isInputMethodTarget()) { 7127 menu.add(1, ID_SWITCH_INPUT_METHOD, 0, com.android.internal.R.string.inputMethod). 7128 setOnMenuItemClickListener(handler); 7129 added = true; 7130 } 7131 7132 String word = getWordForDictionary(); 7133 if (word != null) { 7134 menu.add(1, ID_ADD_TO_DICTIONARY, 0, 7135 getContext().getString(com.android.internal.R.string.addToDictionary, word)). 7136 setOnMenuItemClickListener(handler); 7137 added = true; 7138 7139 } 7140 7141 if (added) { 7142 menu.setHeaderTitle(com.android.internal.R.string.editTextMenuTitle); 7143 } 7144 } 7145 7146 /** 7147 * Returns whether this text view is a current input method target. The 7148 * default implementation just checks with {@link InputMethodManager}. 7149 */ 7150 public boolean isInputMethodTarget() { 7151 InputMethodManager imm = InputMethodManager.peekInstance(); 7152 return imm != null && imm.isActive(this); 7153 } 7154 7155 private static final int ID_SELECT_ALL = android.R.id.selectAll; 7156 private static final int ID_START_SELECTING_TEXT = android.R.id.startSelectingText; 7157 private static final int ID_STOP_SELECTING_TEXT = android.R.id.stopSelectingText; 7158 private static final int ID_CUT = android.R.id.cut; 7159 private static final int ID_COPY = android.R.id.copy; 7160 private static final int ID_PASTE = android.R.id.paste; 7161 private static final int ID_COPY_URL = android.R.id.copyUrl; 7162 private static final int ID_SWITCH_INPUT_METHOD = android.R.id.switchInputMethod; 7163 private static final int ID_ADD_TO_DICTIONARY = android.R.id.addToDictionary; 7164 7165 private class MenuHandler implements MenuItem.OnMenuItemClickListener { 7166 public boolean onMenuItemClick(MenuItem item) { 7167 return onTextContextMenuItem(item.getItemId()); 7168 } 7169 } 7170 7171 /** 7172 * Called when a context menu option for the text view is selected. Currently 7173 * this will be one of: {@link android.R.id#selectAll}, 7174 * {@link android.R.id#startSelectingText}, {@link android.R.id#stopSelectingText}, 7175 * {@link android.R.id#cut}, {@link android.R.id#copy}, 7176 * {@link android.R.id#paste}, {@link android.R.id#copyUrl}, 7177 * or {@link android.R.id#switchInputMethod}. 7178 */ 7179 public boolean onTextContextMenuItem(int id) { 7180 int selStart = getSelectionStart(); 7181 int selEnd = getSelectionEnd(); 7182 7183 if (!isFocused()) { 7184 selStart = 0; 7185 selEnd = mText.length(); 7186 } 7187 7188 int min = Math.min(selStart, selEnd); 7189 int max = Math.max(selStart, selEnd); 7190 7191 if (min < 0) { 7192 min = 0; 7193 } 7194 if (max < 0) { 7195 max = 0; 7196 } 7197 7198 ClipboardManager clip = (ClipboardManager)getContext() 7199 .getSystemService(Context.CLIPBOARD_SERVICE); 7200 7201 switch (id) { 7202 case ID_SELECT_ALL: 7203 Selection.setSelection((Spannable) mText, 0, 7204 mText.length()); 7205 return true; 7206 7207 case ID_START_SELECTING_TEXT: 7208 MetaKeyKeyListener.startSelecting(this, (Spannable) mText); 7209 return true; 7210 7211 case ID_STOP_SELECTING_TEXT: 7212 MetaKeyKeyListener.stopSelecting(this, (Spannable) mText); 7213 Selection.setSelection((Spannable) mText, getSelectionEnd()); 7214 return true; 7215 7216 case ID_CUT: 7217 MetaKeyKeyListener.stopSelecting(this, (Spannable) mText); 7218 7219 if (min == max) { 7220 min = 0; 7221 max = mText.length(); 7222 } 7223 7224 clip.setText(mTransformed.subSequence(min, max)); 7225 ((Editable) mText).delete(min, max); 7226 return true; 7227 7228 case ID_COPY: 7229 MetaKeyKeyListener.stopSelecting(this, (Spannable) mText); 7230 7231 if (min == max) { 7232 min = 0; 7233 max = mText.length(); 7234 } 7235 7236 clip.setText(mTransformed.subSequence(min, max)); 7237 return true; 7238 7239 case ID_PASTE: 7240 MetaKeyKeyListener.stopSelecting(this, (Spannable) mText); 7241 7242 CharSequence paste = clip.getText(); 7243 7244 if (paste != null) { 7245 Selection.setSelection((Spannable) mText, max); 7246 ((Editable) mText).replace(min, max, paste); 7247 } 7248 7249 return true; 7250 7251 case ID_COPY_URL: 7252 MetaKeyKeyListener.stopSelecting(this, (Spannable) mText); 7253 7254 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, 7255 URLSpan.class); 7256 if (urls.length == 1) { 7257 clip.setText(urls[0].getURL()); 7258 } 7259 7260 return true; 7261 7262 case ID_SWITCH_INPUT_METHOD: 7263 InputMethodManager imm = InputMethodManager.peekInstance(); 7264 if (imm != null) { 7265 imm.showInputMethodPicker(); 7266 } 7267 return true; 7268 7269 case ID_ADD_TO_DICTIONARY: 7270 String word = getWordForDictionary(); 7271 7272 if (word != null) { 7273 Intent i = new Intent("com.android.settings.USER_DICTIONARY_INSERT"); 7274 i.putExtra("word", word); 7275 i.setFlags(i.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK); 7276 getContext().startActivity(i); 7277 } 7278 7279 return true; 7280 } 7281 7282 return false; 7283 } 7284 7285 public boolean performLongClick() { 7286 if (super.performLongClick()) { 7287 mEatTouchRelease = true; 7288 return true; 7289 } 7290 7291 return false; 7292 } 7293 7294 @ViewDebug.ExportedProperty 7295 private CharSequence mText; 7296 private CharSequence mTransformed; 7297 private BufferType mBufferType = BufferType.NORMAL; 7298 7299 private int mInputType = EditorInfo.TYPE_NULL; 7300 private CharSequence mHint; 7301 private Layout mHintLayout; 7302 7303 private KeyListener mInput; 7304 7305 private MovementMethod mMovement; 7306 private TransformationMethod mTransformation; 7307 private ChangeWatcher mChangeWatcher; 7308 7309 private ArrayList<TextWatcher> mListeners = null; 7310 7311 // display attributes 7312 private TextPaint mTextPaint; 7313 private boolean mUserSetTextScaleX; 7314 private Paint mHighlightPaint; 7315 private int mHighlightColor = 0xFFBBDDFF; 7316 private Layout mLayout; 7317 7318 private long mShowCursor; 7319 private Blink mBlink; 7320 private boolean mCursorVisible = true; 7321 7322 private boolean mSelectAllOnFocus = false; 7323 7324 private int mGravity = Gravity.TOP | Gravity.LEFT; 7325 private boolean mHorizontallyScrolling; 7326 7327 private int mAutoLinkMask; 7328 private boolean mLinksClickable = true; 7329 7330 private float mSpacingMult = 1; 7331 private float mSpacingAdd = 0; 7332 7333 private static final int LINES = 1; 7334 private static final int EMS = LINES; 7335 private static final int PIXELS = 2; 7336 7337 private int mMaximum = Integer.MAX_VALUE; 7338 private int mMaxMode = LINES; 7339 private int mMinimum = 0; 7340 private int mMinMode = LINES; 7341 7342 private int mMaxWidth = Integer.MAX_VALUE; 7343 private int mMaxWidthMode = PIXELS; 7344 private int mMinWidth = 0; 7345 private int mMinWidthMode = PIXELS; 7346 7347 private boolean mSingleLine; 7348 private int mDesiredHeightAtMeasure = -1; 7349 private boolean mIncludePad = true; 7350 7351 // tmp primitives, so we don't alloc them on each draw 7352 private Path mHighlightPath; 7353 private boolean mHighlightPathBogus = true; 7354 private static final RectF sTempRect = new RectF(); 7355 7356 // XXX should be much larger 7357 private static final int VERY_WIDE = 16384; 7358 7359 private static final int BLINK = 500; 7360 7361 private static final int ANIMATED_SCROLL_GAP = 250; 7362 private long mLastScroll; 7363 private Scroller mScroller = null; 7364 7365 private BoringLayout.Metrics mBoring; 7366 private BoringLayout.Metrics mHintBoring; 7367 7368 private BoringLayout mSavedLayout, mSavedHintLayout; 7369 7370 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 7371 private InputFilter[] mFilters = NO_FILTERS; 7372 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 7373 } 7374
