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