TextView.java revision 180bb1bf26f3061fdfd58106e62d5874f57f675b
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.widget; 18 19import com.android.internal.util.FastMath; 20import com.android.internal.widget.EditableInputConnection; 21 22import org.xmlpull.v1.XmlPullParserException; 23 24import android.R; 25import android.content.ClipData; 26import android.content.ClipData.Item; 27import android.content.ClipboardManager; 28import android.content.Context; 29import android.content.pm.PackageManager; 30import android.content.res.ColorStateList; 31import android.content.res.Resources; 32import android.content.res.TypedArray; 33import android.content.res.XmlResourceParser; 34import android.graphics.Canvas; 35import android.graphics.Color; 36import android.graphics.Paint; 37import android.graphics.Path; 38import android.graphics.Rect; 39import android.graphics.RectF; 40import android.graphics.Typeface; 41import android.graphics.drawable.Drawable; 42import android.inputmethodservice.ExtractEditText; 43import android.net.Uri; 44import android.os.Bundle; 45import android.os.Handler; 46import android.os.Message; 47import android.os.Parcel; 48import android.os.Parcelable; 49import android.os.SystemClock; 50import android.text.BoringLayout; 51import android.text.DynamicLayout; 52import android.text.Editable; 53import android.text.GetChars; 54import android.text.GraphicsOperations; 55import android.text.InputFilter; 56import android.text.InputType; 57import android.text.Layout; 58import android.text.ParcelableSpan; 59import android.text.Selection; 60import android.text.SpanWatcher; 61import android.text.Spannable; 62import android.text.SpannableString; 63import android.text.Spanned; 64import android.text.SpannedString; 65import android.text.StaticLayout; 66import android.text.TextPaint; 67import android.text.TextUtils; 68import android.text.TextWatcher; 69import android.text.method.ArrowKeyMovementMethod; 70import android.text.method.DateKeyListener; 71import android.text.method.DateTimeKeyListener; 72import android.text.method.DialerKeyListener; 73import android.text.method.DigitsKeyListener; 74import android.text.method.KeyListener; 75import android.text.method.LinkMovementMethod; 76import android.text.method.MetaKeyKeyListener; 77import android.text.method.MovementMethod; 78import android.text.method.PasswordTransformationMethod; 79import android.text.method.SingleLineTransformationMethod; 80import android.text.method.TextKeyListener; 81import android.text.method.TimeKeyListener; 82import android.text.method.TransformationMethod; 83import android.text.style.ClickableSpan; 84import android.text.style.ParagraphStyle; 85import android.text.style.URLSpan; 86import android.text.style.UpdateAppearance; 87import android.text.util.Linkify; 88import android.util.AttributeSet; 89import android.util.FloatMath; 90import android.util.Log; 91import android.util.TypedValue; 92import android.view.ActionMode; 93import android.view.ActionMode.Callback; 94import android.view.ContextMenu; 95import android.view.DragEvent; 96import android.view.Gravity; 97import android.view.HapticFeedbackConstants; 98import android.view.KeyCharacterMap; 99import android.view.KeyEvent; 100import android.view.LayoutInflater; 101import android.view.Menu; 102import android.view.MenuItem; 103import android.view.MotionEvent; 104import android.view.View; 105import android.view.ViewConfiguration; 106import android.view.ViewDebug; 107import android.view.ViewGroup; 108import android.view.ViewGroup.LayoutParams; 109import android.view.ViewParent; 110import android.view.ViewRoot; 111import android.view.ViewTreeObserver; 112import android.view.WindowManager; 113import android.view.accessibility.AccessibilityEvent; 114import android.view.accessibility.AccessibilityManager; 115import android.view.animation.AnimationUtils; 116import android.view.inputmethod.BaseInputConnection; 117import android.view.inputmethod.CompletionInfo; 118import android.view.inputmethod.CorrectionInfo; 119import android.view.inputmethod.EditorInfo; 120import android.view.inputmethod.ExtractedText; 121import android.view.inputmethod.ExtractedTextRequest; 122import android.view.inputmethod.InputConnection; 123import android.view.inputmethod.InputMethodManager; 124import android.widget.RemoteViews.RemoteView; 125 126import java.io.IOException; 127import java.lang.ref.WeakReference; 128import java.util.ArrayList; 129 130/** 131 * Displays text to the user and optionally allows them to edit it. A TextView 132 * is a complete text editor, however the basic class is configured to not 133 * allow editing; see {@link EditText} for a subclass that configures the text 134 * view for editing. 135 * 136 * <p> 137 * <b>XML attributes</b> 138 * <p> 139 * See {@link android.R.styleable#TextView TextView Attributes}, 140 * {@link android.R.styleable#View View Attributes} 141 * 142 * @attr ref android.R.styleable#TextView_text 143 * @attr ref android.R.styleable#TextView_bufferType 144 * @attr ref android.R.styleable#TextView_hint 145 * @attr ref android.R.styleable#TextView_textColor 146 * @attr ref android.R.styleable#TextView_textColorHighlight 147 * @attr ref android.R.styleable#TextView_textColorHint 148 * @attr ref android.R.styleable#TextView_textAppearance 149 * @attr ref android.R.styleable#TextView_textColorLink 150 * @attr ref android.R.styleable#TextView_textSize 151 * @attr ref android.R.styleable#TextView_textScaleX 152 * @attr ref android.R.styleable#TextView_typeface 153 * @attr ref android.R.styleable#TextView_textStyle 154 * @attr ref android.R.styleable#TextView_cursorVisible 155 * @attr ref android.R.styleable#TextView_maxLines 156 * @attr ref android.R.styleable#TextView_maxHeight 157 * @attr ref android.R.styleable#TextView_lines 158 * @attr ref android.R.styleable#TextView_height 159 * @attr ref android.R.styleable#TextView_minLines 160 * @attr ref android.R.styleable#TextView_minHeight 161 * @attr ref android.R.styleable#TextView_maxEms 162 * @attr ref android.R.styleable#TextView_maxWidth 163 * @attr ref android.R.styleable#TextView_ems 164 * @attr ref android.R.styleable#TextView_width 165 * @attr ref android.R.styleable#TextView_minEms 166 * @attr ref android.R.styleable#TextView_minWidth 167 * @attr ref android.R.styleable#TextView_gravity 168 * @attr ref android.R.styleable#TextView_scrollHorizontally 169 * @attr ref android.R.styleable#TextView_password 170 * @attr ref android.R.styleable#TextView_singleLine 171 * @attr ref android.R.styleable#TextView_selectAllOnFocus 172 * @attr ref android.R.styleable#TextView_includeFontPadding 173 * @attr ref android.R.styleable#TextView_maxLength 174 * @attr ref android.R.styleable#TextView_shadowColor 175 * @attr ref android.R.styleable#TextView_shadowDx 176 * @attr ref android.R.styleable#TextView_shadowDy 177 * @attr ref android.R.styleable#TextView_shadowRadius 178 * @attr ref android.R.styleable#TextView_autoLink 179 * @attr ref android.R.styleable#TextView_linksClickable 180 * @attr ref android.R.styleable#TextView_numeric 181 * @attr ref android.R.styleable#TextView_digits 182 * @attr ref android.R.styleable#TextView_phoneNumber 183 * @attr ref android.R.styleable#TextView_inputMethod 184 * @attr ref android.R.styleable#TextView_capitalize 185 * @attr ref android.R.styleable#TextView_autoText 186 * @attr ref android.R.styleable#TextView_editable 187 * @attr ref android.R.styleable#TextView_freezesText 188 * @attr ref android.R.styleable#TextView_ellipsize 189 * @attr ref android.R.styleable#TextView_drawableTop 190 * @attr ref android.R.styleable#TextView_drawableBottom 191 * @attr ref android.R.styleable#TextView_drawableRight 192 * @attr ref android.R.styleable#TextView_drawableLeft 193 * @attr ref android.R.styleable#TextView_drawablePadding 194 * @attr ref android.R.styleable#TextView_lineSpacingExtra 195 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 196 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 197 * @attr ref android.R.styleable#TextView_inputType 198 * @attr ref android.R.styleable#TextView_imeOptions 199 * @attr ref android.R.styleable#TextView_privateImeOptions 200 * @attr ref android.R.styleable#TextView_imeActionLabel 201 * @attr ref android.R.styleable#TextView_imeActionId 202 * @attr ref android.R.styleable#TextView_editorExtras 203 */ 204@RemoteView 205public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 206 static final String LOG_TAG = "TextView"; 207 static final boolean DEBUG_EXTRACT = false; 208 209 private static final int PRIORITY = 100; 210 private int mCurrentAlpha = 255; 211 212 final int[] mTempCoords = new int[2]; 213 Rect mTempRect; 214 215 private ColorStateList mTextColor; 216 private int mCurTextColor; 217 private ColorStateList mHintTextColor; 218 private ColorStateList mLinkTextColor; 219 private int mCurHintTextColor; 220 private boolean mFreezesText; 221 private boolean mFrozenWithFocus; 222 private boolean mTemporaryDetach; 223 private boolean mDispatchTemporaryDetach; 224 225 private boolean mDiscardNextActionUp = false; 226 private boolean mIgnoreActionUpEvent = false; 227 228 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 229 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 230 231 private float mShadowRadius, mShadowDx, mShadowDy; 232 233 private static final int PREDRAW_NOT_REGISTERED = 0; 234 private static final int PREDRAW_PENDING = 1; 235 private static final int PREDRAW_DONE = 2; 236 private int mPreDrawState = PREDRAW_NOT_REGISTERED; 237 238 private TextUtils.TruncateAt mEllipsize = null; 239 240 // Enum for the "typeface" XML parameter. 241 // TODO: How can we get this from the XML instead of hardcoding it here? 242 private static final int SANS = 1; 243 private static final int SERIF = 2; 244 private static final int MONOSPACE = 3; 245 246 // Bitfield for the "numeric" XML parameter. 247 // TODO: How can we get this from the XML instead of hardcoding it here? 248 private static final int SIGNED = 2; 249 private static final int DECIMAL = 4; 250 251 class Drawables { 252 final Rect mCompoundRect = new Rect(); 253 Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight; 254 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight; 255 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight; 256 int mDrawablePadding; 257 } 258 private Drawables mDrawables; 259 260 private CharSequence mError; 261 private boolean mErrorWasChanged; 262 private ErrorPopup mPopup; 263 /** 264 * This flag is set if the TextView tries to display an error before it 265 * is attached to the window (so its position is still unknown). 266 * It causes the error to be shown later, when onAttachedToWindow() 267 * is called. 268 */ 269 private boolean mShowErrorAfterAttach; 270 271 private CharWrapper mCharWrapper = null; 272 273 private boolean mSelectionMoved = false; 274 private boolean mTouchFocusSelected = false; 275 276 private Marquee mMarquee; 277 private boolean mRestartMarquee; 278 279 private int mMarqueeRepeatLimit = 3; 280 281 class InputContentType { 282 int imeOptions = EditorInfo.IME_NULL; 283 String privateImeOptions; 284 CharSequence imeActionLabel; 285 int imeActionId; 286 Bundle extras; 287 OnEditorActionListener onEditorActionListener; 288 boolean enterDown; 289 } 290 InputContentType mInputContentType; 291 292 class InputMethodState { 293 Rect mCursorRectInWindow = new Rect(); 294 RectF mTmpRectF = new RectF(); 295 float[] mTmpOffset = new float[2]; 296 ExtractedTextRequest mExtracting; 297 final ExtractedText mTmpExtracted = new ExtractedText(); 298 int mBatchEditNesting; 299 boolean mCursorChanged; 300 boolean mSelectionModeChanged; 301 boolean mContentChanged; 302 int mChangedStart, mChangedEnd, mChangedDelta; 303 } 304 InputMethodState mInputMethodState; 305 306 private int mTextSelectHandleLeftRes; 307 private int mTextSelectHandleRightRes; 308 private int mTextSelectHandleRes; 309 private int mTextEditPasteWindowLayout, mTextEditSidePasteWindowLayout; 310 private int mTextEditNoPasteWindowLayout, mTextEditSideNoPasteWindowLayout; 311 312 private int mCursorDrawableRes; 313 private final Drawable[] mCursorDrawable = new Drawable[2]; 314 private int mCursorCount; // Actual current number of used mCursorDrawable: 0, 1 or 2 315 316 private Drawable mSelectHandleLeft; 317 private Drawable mSelectHandleRight; 318 private Drawable mSelectHandleCenter; 319 320 private int mLastDownPositionX, mLastDownPositionY; 321 private Callback mCustomSelectionActionModeCallback; 322 323 private final int mSquaredTouchSlopDistance; 324 // Set when this TextView gained focus with some text selected. Will start selection mode. 325 private boolean mCreatedWithASelection = false; 326 327 /* 328 * Kick-start the font cache for the zygote process (to pay the cost of 329 * initializing freetype for our default font only once). 330 */ 331 static { 332 Paint p = new Paint(); 333 p.setAntiAlias(true); 334 // We don't care about the result, just the side-effect of measuring. 335 p.measureText("H"); 336 } 337 338 /** 339 * Interface definition for a callback to be invoked when an action is 340 * performed on the editor. 341 */ 342 public interface OnEditorActionListener { 343 /** 344 * Called when an action is being performed. 345 * 346 * @param v The view that was clicked. 347 * @param actionId Identifier of the action. This will be either the 348 * identifier you supplied, or {@link EditorInfo#IME_NULL 349 * EditorInfo.IME_NULL} if being called due to the enter key 350 * being pressed. 351 * @param event If triggered by an enter key, this is the event; 352 * otherwise, this is null. 353 * @return Return true if you have consumed the action, else false. 354 */ 355 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 356 } 357 358 public TextView(Context context) { 359 this(context, null); 360 } 361 362 public TextView(Context context, 363 AttributeSet attrs) { 364 this(context, attrs, com.android.internal.R.attr.textViewStyle); 365 } 366 367 @SuppressWarnings("deprecation") 368 public TextView(Context context, 369 AttributeSet attrs, 370 int defStyle) { 371 super(context, attrs, defStyle); 372 mText = ""; 373 374 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 375 mTextPaint.density = getResources().getDisplayMetrics().density; 376 mTextPaint.setCompatibilityScaling( 377 getResources().getCompatibilityInfo().applicationScale); 378 379 // If we get the paint from the skin, we should set it to left, since 380 // the layout always wants it to be left. 381 // mTextPaint.setTextAlign(Paint.Align.LEFT); 382 383 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 384 mHighlightPaint.setCompatibilityScaling( 385 getResources().getCompatibilityInfo().applicationScale); 386 387 mMovement = getDefaultMovementMethod(); 388 mTransformation = null; 389 390 TypedArray a = 391 context.obtainStyledAttributes( 392 attrs, com.android.internal.R.styleable.TextView, defStyle, 0); 393 394 int textColorHighlight = 0; 395 ColorStateList textColor = null; 396 ColorStateList textColorHint = null; 397 ColorStateList textColorLink = null; 398 int textSize = 15; 399 int typefaceIndex = -1; 400 int styleIndex = -1; 401 402 /* 403 * Look the appearance up without checking first if it exists because 404 * almost every TextView has one and it greatly simplifies the logic 405 * to be able to parse the appearance first and then let specific tags 406 * for this View override it. 407 */ 408 TypedArray appearance = null; 409 int ap = a.getResourceId(com.android.internal.R.styleable.TextView_textAppearance, -1); 410 if (ap != -1) { 411 appearance = context.obtainStyledAttributes(ap, 412 com.android.internal.R.styleable. 413 TextAppearance); 414 } 415 if (appearance != null) { 416 int n = appearance.getIndexCount(); 417 for (int i = 0; i < n; i++) { 418 int attr = appearance.getIndex(i); 419 420 switch (attr) { 421 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 422 textColorHighlight = appearance.getColor(attr, textColorHighlight); 423 break; 424 425 case com.android.internal.R.styleable.TextAppearance_textColor: 426 textColor = appearance.getColorStateList(attr); 427 break; 428 429 case com.android.internal.R.styleable.TextAppearance_textColorHint: 430 textColorHint = appearance.getColorStateList(attr); 431 break; 432 433 case com.android.internal.R.styleable.TextAppearance_textColorLink: 434 textColorLink = appearance.getColorStateList(attr); 435 break; 436 437 case com.android.internal.R.styleable.TextAppearance_textSize: 438 textSize = appearance.getDimensionPixelSize(attr, textSize); 439 break; 440 441 case com.android.internal.R.styleable.TextAppearance_typeface: 442 typefaceIndex = appearance.getInt(attr, -1); 443 break; 444 445 case com.android.internal.R.styleable.TextAppearance_textStyle: 446 styleIndex = appearance.getInt(attr, -1); 447 break; 448 } 449 } 450 451 appearance.recycle(); 452 } 453 454 boolean editable = getDefaultEditable(); 455 CharSequence inputMethod = null; 456 int numeric = 0; 457 CharSequence digits = null; 458 boolean phone = false; 459 boolean autotext = false; 460 int autocap = -1; 461 int buffertype = 0; 462 boolean selectallonfocus = false; 463 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 464 drawableBottom = null; 465 int drawablePadding = 0; 466 int ellipsize = -1; 467 boolean singleLine = false; 468 int maxlength = -1; 469 CharSequence text = ""; 470 CharSequence hint = null; 471 int shadowcolor = 0; 472 float dx = 0, dy = 0, r = 0; 473 boolean password = false; 474 int inputType = EditorInfo.TYPE_NULL; 475 476 int n = a.getIndexCount(); 477 for (int i = 0; i < n; i++) { 478 int attr = a.getIndex(i); 479 480 switch (attr) { 481 case com.android.internal.R.styleable.TextView_editable: 482 editable = a.getBoolean(attr, editable); 483 break; 484 485 case com.android.internal.R.styleable.TextView_inputMethod: 486 inputMethod = a.getText(attr); 487 break; 488 489 case com.android.internal.R.styleable.TextView_numeric: 490 numeric = a.getInt(attr, numeric); 491 break; 492 493 case com.android.internal.R.styleable.TextView_digits: 494 digits = a.getText(attr); 495 break; 496 497 case com.android.internal.R.styleable.TextView_phoneNumber: 498 phone = a.getBoolean(attr, phone); 499 break; 500 501 case com.android.internal.R.styleable.TextView_autoText: 502 autotext = a.getBoolean(attr, autotext); 503 break; 504 505 case com.android.internal.R.styleable.TextView_capitalize: 506 autocap = a.getInt(attr, autocap); 507 break; 508 509 case com.android.internal.R.styleable.TextView_bufferType: 510 buffertype = a.getInt(attr, buffertype); 511 break; 512 513 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 514 selectallonfocus = a.getBoolean(attr, selectallonfocus); 515 break; 516 517 case com.android.internal.R.styleable.TextView_autoLink: 518 mAutoLinkMask = a.getInt(attr, 0); 519 break; 520 521 case com.android.internal.R.styleable.TextView_linksClickable: 522 mLinksClickable = a.getBoolean(attr, true); 523 break; 524 525 case com.android.internal.R.styleable.TextView_drawableLeft: 526 drawableLeft = a.getDrawable(attr); 527 break; 528 529 case com.android.internal.R.styleable.TextView_drawableTop: 530 drawableTop = a.getDrawable(attr); 531 break; 532 533 case com.android.internal.R.styleable.TextView_drawableRight: 534 drawableRight = a.getDrawable(attr); 535 break; 536 537 case com.android.internal.R.styleable.TextView_drawableBottom: 538 drawableBottom = a.getDrawable(attr); 539 break; 540 541 case com.android.internal.R.styleable.TextView_drawablePadding: 542 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 543 break; 544 545 case com.android.internal.R.styleable.TextView_maxLines: 546 setMaxLines(a.getInt(attr, -1)); 547 break; 548 549 case com.android.internal.R.styleable.TextView_maxHeight: 550 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 551 break; 552 553 case com.android.internal.R.styleable.TextView_lines: 554 setLines(a.getInt(attr, -1)); 555 break; 556 557 case com.android.internal.R.styleable.TextView_height: 558 setHeight(a.getDimensionPixelSize(attr, -1)); 559 break; 560 561 case com.android.internal.R.styleable.TextView_minLines: 562 setMinLines(a.getInt(attr, -1)); 563 break; 564 565 case com.android.internal.R.styleable.TextView_minHeight: 566 setMinHeight(a.getDimensionPixelSize(attr, -1)); 567 break; 568 569 case com.android.internal.R.styleable.TextView_maxEms: 570 setMaxEms(a.getInt(attr, -1)); 571 break; 572 573 case com.android.internal.R.styleable.TextView_maxWidth: 574 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 575 break; 576 577 case com.android.internal.R.styleable.TextView_ems: 578 setEms(a.getInt(attr, -1)); 579 break; 580 581 case com.android.internal.R.styleable.TextView_width: 582 setWidth(a.getDimensionPixelSize(attr, -1)); 583 break; 584 585 case com.android.internal.R.styleable.TextView_minEms: 586 setMinEms(a.getInt(attr, -1)); 587 break; 588 589 case com.android.internal.R.styleable.TextView_minWidth: 590 setMinWidth(a.getDimensionPixelSize(attr, -1)); 591 break; 592 593 case com.android.internal.R.styleable.TextView_gravity: 594 setGravity(a.getInt(attr, -1)); 595 break; 596 597 case com.android.internal.R.styleable.TextView_hint: 598 hint = a.getText(attr); 599 break; 600 601 case com.android.internal.R.styleable.TextView_text: 602 text = a.getText(attr); 603 break; 604 605 case com.android.internal.R.styleable.TextView_scrollHorizontally: 606 if (a.getBoolean(attr, false)) { 607 setHorizontallyScrolling(true); 608 } 609 break; 610 611 case com.android.internal.R.styleable.TextView_singleLine: 612 singleLine = a.getBoolean(attr, singleLine); 613 break; 614 615 case com.android.internal.R.styleable.TextView_ellipsize: 616 ellipsize = a.getInt(attr, ellipsize); 617 break; 618 619 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 620 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 621 break; 622 623 case com.android.internal.R.styleable.TextView_includeFontPadding: 624 if (!a.getBoolean(attr, true)) { 625 setIncludeFontPadding(false); 626 } 627 break; 628 629 case com.android.internal.R.styleable.TextView_cursorVisible: 630 if (!a.getBoolean(attr, true)) { 631 setCursorVisible(false); 632 } 633 break; 634 635 case com.android.internal.R.styleable.TextView_maxLength: 636 maxlength = a.getInt(attr, -1); 637 break; 638 639 case com.android.internal.R.styleable.TextView_textScaleX: 640 setTextScaleX(a.getFloat(attr, 1.0f)); 641 break; 642 643 case com.android.internal.R.styleable.TextView_freezesText: 644 mFreezesText = a.getBoolean(attr, false); 645 break; 646 647 case com.android.internal.R.styleable.TextView_shadowColor: 648 shadowcolor = a.getInt(attr, 0); 649 break; 650 651 case com.android.internal.R.styleable.TextView_shadowDx: 652 dx = a.getFloat(attr, 0); 653 break; 654 655 case com.android.internal.R.styleable.TextView_shadowDy: 656 dy = a.getFloat(attr, 0); 657 break; 658 659 case com.android.internal.R.styleable.TextView_shadowRadius: 660 r = a.getFloat(attr, 0); 661 break; 662 663 case com.android.internal.R.styleable.TextView_enabled: 664 setEnabled(a.getBoolean(attr, isEnabled())); 665 break; 666 667 case com.android.internal.R.styleable.TextView_textColorHighlight: 668 textColorHighlight = a.getColor(attr, textColorHighlight); 669 break; 670 671 case com.android.internal.R.styleable.TextView_textColor: 672 textColor = a.getColorStateList(attr); 673 break; 674 675 case com.android.internal.R.styleable.TextView_textColorHint: 676 textColorHint = a.getColorStateList(attr); 677 break; 678 679 case com.android.internal.R.styleable.TextView_textColorLink: 680 textColorLink = a.getColorStateList(attr); 681 break; 682 683 case com.android.internal.R.styleable.TextView_textSize: 684 textSize = a.getDimensionPixelSize(attr, textSize); 685 break; 686 687 case com.android.internal.R.styleable.TextView_typeface: 688 typefaceIndex = a.getInt(attr, typefaceIndex); 689 break; 690 691 case com.android.internal.R.styleable.TextView_textStyle: 692 styleIndex = a.getInt(attr, styleIndex); 693 break; 694 695 case com.android.internal.R.styleable.TextView_password: 696 password = a.getBoolean(attr, password); 697 break; 698 699 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 700 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 701 break; 702 703 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 704 mSpacingMult = a.getFloat(attr, mSpacingMult); 705 break; 706 707 case com.android.internal.R.styleable.TextView_inputType: 708 inputType = a.getInt(attr, mInputType); 709 break; 710 711 case com.android.internal.R.styleable.TextView_imeOptions: 712 if (mInputContentType == null) { 713 mInputContentType = new InputContentType(); 714 } 715 mInputContentType.imeOptions = a.getInt(attr, 716 mInputContentType.imeOptions); 717 break; 718 719 case com.android.internal.R.styleable.TextView_imeActionLabel: 720 if (mInputContentType == null) { 721 mInputContentType = new InputContentType(); 722 } 723 mInputContentType.imeActionLabel = a.getText(attr); 724 break; 725 726 case com.android.internal.R.styleable.TextView_imeActionId: 727 if (mInputContentType == null) { 728 mInputContentType = new InputContentType(); 729 } 730 mInputContentType.imeActionId = a.getInt(attr, 731 mInputContentType.imeActionId); 732 break; 733 734 case com.android.internal.R.styleable.TextView_privateImeOptions: 735 setPrivateImeOptions(a.getString(attr)); 736 break; 737 738 case com.android.internal.R.styleable.TextView_editorExtras: 739 try { 740 setInputExtras(a.getResourceId(attr, 0)); 741 } catch (XmlPullParserException e) { 742 Log.w(LOG_TAG, "Failure reading input extras", e); 743 } catch (IOException e) { 744 Log.w(LOG_TAG, "Failure reading input extras", e); 745 } 746 break; 747 748 case com.android.internal.R.styleable.TextView_textCursorDrawable: 749 mCursorDrawableRes = a.getResourceId(attr, 0); 750 break; 751 752 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 753 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 754 break; 755 756 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 757 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 758 break; 759 760 case com.android.internal.R.styleable.TextView_textSelectHandle: 761 mTextSelectHandleRes = a.getResourceId(attr, 0); 762 break; 763 764 case com.android.internal.R.styleable.TextView_textEditPasteWindowLayout: 765 mTextEditPasteWindowLayout = a.getResourceId(attr, 0); 766 break; 767 768 case com.android.internal.R.styleable.TextView_textEditNoPasteWindowLayout: 769 mTextEditNoPasteWindowLayout = a.getResourceId(attr, 0); 770 break; 771 772 case com.android.internal.R.styleable.TextView_textEditSidePasteWindowLayout: 773 mTextEditSidePasteWindowLayout = a.getResourceId(attr, 0); 774 break; 775 776 case com.android.internal.R.styleable.TextView_textEditSideNoPasteWindowLayout: 777 mTextEditSideNoPasteWindowLayout = a.getResourceId(attr, 0); 778 break; 779 780 case com.android.internal.R.styleable.TextView_textIsSelectable: 781 mTextIsSelectable = a.getBoolean(attr, false); 782 break; 783 } 784 } 785 a.recycle(); 786 787 BufferType bufferType = BufferType.EDITABLE; 788 789 final int variation = 790 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 791 final boolean passwordInputType = variation 792 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 793 final boolean webPasswordInputType = variation 794 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 795 final boolean numberPasswordInputType = variation 796 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 797 798 if (inputMethod != null) { 799 Class<?> c; 800 801 try { 802 c = Class.forName(inputMethod.toString()); 803 } catch (ClassNotFoundException ex) { 804 throw new RuntimeException(ex); 805 } 806 807 try { 808 mInput = (KeyListener) c.newInstance(); 809 } catch (InstantiationException ex) { 810 throw new RuntimeException(ex); 811 } catch (IllegalAccessException ex) { 812 throw new RuntimeException(ex); 813 } 814 try { 815 mInputType = inputType != EditorInfo.TYPE_NULL 816 ? inputType 817 : mInput.getInputType(); 818 } catch (IncompatibleClassChangeError e) { 819 mInputType = EditorInfo.TYPE_CLASS_TEXT; 820 } 821 } else if (digits != null) { 822 mInput = DigitsKeyListener.getInstance(digits.toString()); 823 // If no input type was specified, we will default to generic 824 // text, since we can't tell the IME about the set of digits 825 // that was selected. 826 mInputType = inputType != EditorInfo.TYPE_NULL 827 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 828 } else if (inputType != EditorInfo.TYPE_NULL) { 829 setInputType(inputType, true); 830 // If set, the input type overrides what was set using the deprecated singleLine flag. 831 singleLine = !isMultilineInputType(inputType); 832 } else if (phone) { 833 mInput = DialerKeyListener.getInstance(); 834 mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 835 } else if (numeric != 0) { 836 mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0, 837 (numeric & DECIMAL) != 0); 838 inputType = EditorInfo.TYPE_CLASS_NUMBER; 839 if ((numeric & SIGNED) != 0) { 840 inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED; 841 } 842 if ((numeric & DECIMAL) != 0) { 843 inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL; 844 } 845 mInputType = inputType; 846 } else if (autotext || autocap != -1) { 847 TextKeyListener.Capitalize cap; 848 849 inputType = EditorInfo.TYPE_CLASS_TEXT; 850 851 switch (autocap) { 852 case 1: 853 cap = TextKeyListener.Capitalize.SENTENCES; 854 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 855 break; 856 857 case 2: 858 cap = TextKeyListener.Capitalize.WORDS; 859 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 860 break; 861 862 case 3: 863 cap = TextKeyListener.Capitalize.CHARACTERS; 864 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 865 break; 866 867 default: 868 cap = TextKeyListener.Capitalize.NONE; 869 break; 870 } 871 872 mInput = TextKeyListener.getInstance(autotext, cap); 873 mInputType = inputType; 874 } else if (mTextIsSelectable) { 875 // Prevent text changes from keyboard. 876 mInputType = EditorInfo.TYPE_NULL; 877 mInput = null; 878 bufferType = BufferType.SPANNABLE; 879 // Required to request focus while in touch mode. 880 setFocusableInTouchMode(true); 881 // So that selection can be changed using arrow keys and touch is handled. 882 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 883 } else if (editable) { 884 mInput = TextKeyListener.getInstance(); 885 mInputType = EditorInfo.TYPE_CLASS_TEXT; 886 } else { 887 mInput = null; 888 889 switch (buffertype) { 890 case 0: 891 bufferType = BufferType.NORMAL; 892 break; 893 case 1: 894 bufferType = BufferType.SPANNABLE; 895 break; 896 case 2: 897 bufferType = BufferType.EDITABLE; 898 break; 899 } 900 } 901 902 // mInputType has been set from inputType, possibly modified by mInputMethod. 903 // Specialize mInputType to [web]password if we have a text class and the original input 904 // type was a password. 905 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 906 if (password || passwordInputType) { 907 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 908 | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 909 } 910 if (webPasswordInputType) { 911 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 912 | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD; 913 } 914 } else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) { 915 if (numberPasswordInputType) { 916 mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION)) 917 | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 918 } 919 } 920 921 if (selectallonfocus) { 922 mSelectAllOnFocus = true; 923 924 if (bufferType == BufferType.NORMAL) 925 bufferType = BufferType.SPANNABLE; 926 } 927 928 setCompoundDrawablesWithIntrinsicBounds( 929 drawableLeft, drawableTop, drawableRight, drawableBottom); 930 setCompoundDrawablePadding(drawablePadding); 931 932 // Same as setSingleLine(), but make sure the transformation method and the maximum number 933 // of lines of height are unchanged for multi-line TextViews. 934 setInputTypeSingleLine(singleLine); 935 applySingleLine(singleLine, singleLine, singleLine); 936 937 if (singleLine && mInput == null && ellipsize < 0) { 938 ellipsize = 3; // END 939 } 940 941 switch (ellipsize) { 942 case 1: 943 setEllipsize(TextUtils.TruncateAt.START); 944 break; 945 case 2: 946 setEllipsize(TextUtils.TruncateAt.MIDDLE); 947 break; 948 case 3: 949 setEllipsize(TextUtils.TruncateAt.END); 950 break; 951 case 4: 952 setHorizontalFadingEdgeEnabled(true); 953 setEllipsize(TextUtils.TruncateAt.MARQUEE); 954 break; 955 } 956 957 setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000)); 958 setHintTextColor(textColorHint); 959 setLinkTextColor(textColorLink); 960 if (textColorHighlight != 0) { 961 setHighlightColor(textColorHighlight); 962 } 963 setRawTextSize(textSize); 964 965 if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) { 966 setTransformationMethod(PasswordTransformationMethod.getInstance()); 967 typefaceIndex = MONOSPACE; 968 } else if ((mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 969 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) { 970 typefaceIndex = MONOSPACE; 971 } 972 973 setTypefaceByIndex(typefaceIndex, styleIndex); 974 975 if (shadowcolor != 0) { 976 setShadowLayer(r, dx, dy, shadowcolor); 977 } 978 979 if (maxlength >= 0) { 980 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 981 } else { 982 setFilters(NO_FILTERS); 983 } 984 985 setText(text, bufferType); 986 if (hint != null) setHint(hint); 987 988 /* 989 * Views are not normally focusable unless specified to be. 990 * However, TextViews that have input or movement methods *are* 991 * focusable by default. 992 */ 993 a = context.obtainStyledAttributes(attrs, 994 com.android.internal.R.styleable.View, 995 defStyle, 0); 996 997 boolean focusable = mMovement != null || mInput != null; 998 boolean clickable = focusable; 999 boolean longClickable = focusable; 1000 1001 n = a.getIndexCount(); 1002 for (int i = 0; i < n; i++) { 1003 int attr = a.getIndex(i); 1004 1005 switch (attr) { 1006 case com.android.internal.R.styleable.View_focusable: 1007 focusable = a.getBoolean(attr, focusable); 1008 break; 1009 1010 case com.android.internal.R.styleable.View_clickable: 1011 clickable = a.getBoolean(attr, clickable); 1012 break; 1013 1014 case com.android.internal.R.styleable.View_longClickable: 1015 longClickable = a.getBoolean(attr, longClickable); 1016 break; 1017 } 1018 } 1019 a.recycle(); 1020 1021 setFocusable(focusable); 1022 setClickable(clickable); 1023 setLongClickable(longClickable); 1024 1025 prepareCursorControllers(); 1026 1027 final ViewConfiguration viewConfiguration = ViewConfiguration.get(context); 1028 final int touchSlop = viewConfiguration.getScaledTouchSlop(); 1029 mSquaredTouchSlopDistance = touchSlop * touchSlop; 1030 } 1031 1032 private void setTypefaceByIndex(int typefaceIndex, int styleIndex) { 1033 Typeface tf = null; 1034 switch (typefaceIndex) { 1035 case SANS: 1036 tf = Typeface.SANS_SERIF; 1037 break; 1038 1039 case SERIF: 1040 tf = Typeface.SERIF; 1041 break; 1042 1043 case MONOSPACE: 1044 tf = Typeface.MONOSPACE; 1045 break; 1046 } 1047 1048 setTypeface(tf, styleIndex); 1049 } 1050 1051 @Override 1052 public void setEnabled(boolean enabled) { 1053 if (enabled == isEnabled()) { 1054 return; 1055 } 1056 1057 if (!enabled) { 1058 // Hide the soft input if the currently active TextView is disabled 1059 InputMethodManager imm = InputMethodManager.peekInstance(); 1060 if (imm != null && imm.isActive(this)) { 1061 imm.hideSoftInputFromWindow(getWindowToken(), 0); 1062 } 1063 } 1064 super.setEnabled(enabled); 1065 } 1066 1067 /** 1068 * Sets the typeface and style in which the text should be displayed, 1069 * and turns on the fake bold and italic bits in the Paint if the 1070 * Typeface that you provided does not have all the bits in the 1071 * style that you specified. 1072 * 1073 * @attr ref android.R.styleable#TextView_typeface 1074 * @attr ref android.R.styleable#TextView_textStyle 1075 */ 1076 public void setTypeface(Typeface tf, int style) { 1077 if (style > 0) { 1078 if (tf == null) { 1079 tf = Typeface.defaultFromStyle(style); 1080 } else { 1081 tf = Typeface.create(tf, style); 1082 } 1083 1084 setTypeface(tf); 1085 // now compute what (if any) algorithmic styling is needed 1086 int typefaceStyle = tf != null ? tf.getStyle() : 0; 1087 int need = style & ~typefaceStyle; 1088 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 1089 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 1090 } else { 1091 mTextPaint.setFakeBoldText(false); 1092 mTextPaint.setTextSkewX(0); 1093 setTypeface(tf); 1094 } 1095 } 1096 1097 /** 1098 * Subclasses override this to specify that they have a KeyListener 1099 * by default even if not specifically called for in the XML options. 1100 */ 1101 protected boolean getDefaultEditable() { 1102 return false; 1103 } 1104 1105 /** 1106 * Subclasses override this to specify a default movement method. 1107 */ 1108 protected MovementMethod getDefaultMovementMethod() { 1109 return null; 1110 } 1111 1112 /** 1113 * Return the text the TextView is displaying. If setText() was called with 1114 * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast 1115 * the return value from this method to Spannable or Editable, respectively. 1116 * 1117 * Note: The content of the return value should not be modified. If you want 1118 * a modifiable one, you should make your own copy first. 1119 */ 1120 @ViewDebug.CapturedViewProperty 1121 public CharSequence getText() { 1122 return mText; 1123 } 1124 1125 /** 1126 * Returns the length, in characters, of the text managed by this TextView 1127 */ 1128 public int length() { 1129 return mText.length(); 1130 } 1131 1132 /** 1133 * Return the text the TextView is displaying as an Editable object. If 1134 * the text is not editable, null is returned. 1135 * 1136 * @see #getText 1137 */ 1138 public Editable getEditableText() { 1139 return (mText instanceof Editable) ? (Editable)mText : null; 1140 } 1141 1142 /** 1143 * @return the height of one standard line in pixels. Note that markup 1144 * within the text can cause individual lines to be taller or shorter 1145 * than this height, and the layout may contain additional first- 1146 * or last-line padding. 1147 */ 1148 public int getLineHeight() { 1149 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 1150 } 1151 1152 /** 1153 * @return the Layout that is currently being used to display the text. 1154 * This can be null if the text or width has recently changes. 1155 */ 1156 public final Layout getLayout() { 1157 return mLayout; 1158 } 1159 1160 /** 1161 * @return the current key listener for this TextView. 1162 * This will frequently be null for non-EditText TextViews. 1163 */ 1164 public final KeyListener getKeyListener() { 1165 return mInput; 1166 } 1167 1168 /** 1169 * Sets the key listener to be used with this TextView. This can be null 1170 * to disallow user input. Note that this method has significant and 1171 * subtle interactions with soft keyboards and other input method: 1172 * see {@link KeyListener#getInputType() KeyListener.getContentType()} 1173 * for important details. Calling this method will replace the current 1174 * content type of the text view with the content type returned by the 1175 * key listener. 1176 * <p> 1177 * Be warned that if you want a TextView with a key listener or movement 1178 * method not to be focusable, or if you want a TextView without a 1179 * key listener or movement method to be focusable, you must call 1180 * {@link #setFocusable} again after calling this to get the focusability 1181 * back the way you want it. 1182 * 1183 * @attr ref android.R.styleable#TextView_numeric 1184 * @attr ref android.R.styleable#TextView_digits 1185 * @attr ref android.R.styleable#TextView_phoneNumber 1186 * @attr ref android.R.styleable#TextView_inputMethod 1187 * @attr ref android.R.styleable#TextView_capitalize 1188 * @attr ref android.R.styleable#TextView_autoText 1189 */ 1190 public void setKeyListener(KeyListener input) { 1191 setKeyListenerOnly(input); 1192 fixFocusableAndClickableSettings(); 1193 1194 if (input != null) { 1195 try { 1196 mInputType = mInput.getInputType(); 1197 } catch (IncompatibleClassChangeError e) { 1198 mInputType = EditorInfo.TYPE_CLASS_TEXT; 1199 } 1200 // Change inputType, without affecting transformation. 1201 // No need to applySingleLine since mSingleLine is unchanged. 1202 setInputTypeSingleLine(mSingleLine); 1203 } else { 1204 mInputType = EditorInfo.TYPE_NULL; 1205 } 1206 1207 InputMethodManager imm = InputMethodManager.peekInstance(); 1208 if (imm != null) imm.restartInput(this); 1209 } 1210 1211 private void setKeyListenerOnly(KeyListener input) { 1212 mInput = input; 1213 if (mInput != null && !(mText instanceof Editable)) 1214 setText(mText); 1215 1216 setFilters((Editable) mText, mFilters); 1217 } 1218 1219 /** 1220 * @return the movement method being used for this TextView. 1221 * This will frequently be null for non-EditText TextViews. 1222 */ 1223 public final MovementMethod getMovementMethod() { 1224 return mMovement; 1225 } 1226 1227 /** 1228 * Sets the movement method (arrow key handler) to be used for 1229 * this TextView. This can be null to disallow using the arrow keys 1230 * to move the cursor or scroll the view. 1231 * <p> 1232 * Be warned that if you want a TextView with a key listener or movement 1233 * method not to be focusable, or if you want a TextView without a 1234 * key listener or movement method to be focusable, you must call 1235 * {@link #setFocusable} again after calling this to get the focusability 1236 * back the way you want it. 1237 */ 1238 public final void setMovementMethod(MovementMethod movement) { 1239 mMovement = movement; 1240 1241 if (mMovement != null && !(mText instanceof Spannable)) 1242 setText(mText); 1243 1244 fixFocusableAndClickableSettings(); 1245 1246 // SelectionModifierCursorController depends on textCanBeSelected, which depends on mMovement 1247 prepareCursorControllers(); 1248 } 1249 1250 private void fixFocusableAndClickableSettings() { 1251 if ((mMovement != null) || mInput != null) { 1252 setFocusable(true); 1253 setClickable(true); 1254 setLongClickable(true); 1255 } else { 1256 setFocusable(false); 1257 setClickable(false); 1258 setLongClickable(false); 1259 } 1260 } 1261 1262 /** 1263 * @return the current transformation method for this TextView. 1264 * This will frequently be null except for single-line and password 1265 * fields. 1266 */ 1267 public final TransformationMethod getTransformationMethod() { 1268 return mTransformation; 1269 } 1270 1271 /** 1272 * Sets the transformation that is applied to the text that this 1273 * TextView is displaying. 1274 * 1275 * @attr ref android.R.styleable#TextView_password 1276 * @attr ref android.R.styleable#TextView_singleLine 1277 */ 1278 public final void setTransformationMethod(TransformationMethod method) { 1279 if (method == mTransformation) { 1280 // Avoid the setText() below if the transformation is 1281 // the same. 1282 return; 1283 } 1284 if (mTransformation != null) { 1285 if (mText instanceof Spannable) { 1286 ((Spannable) mText).removeSpan(mTransformation); 1287 } 1288 } 1289 1290 mTransformation = method; 1291 1292 setText(mText); 1293 } 1294 1295 /** 1296 * Returns the top padding of the view, plus space for the top 1297 * Drawable if any. 1298 */ 1299 public int getCompoundPaddingTop() { 1300 final Drawables dr = mDrawables; 1301 if (dr == null || dr.mDrawableTop == null) { 1302 return mPaddingTop; 1303 } else { 1304 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 1305 } 1306 } 1307 1308 /** 1309 * Returns the bottom padding of the view, plus space for the bottom 1310 * Drawable if any. 1311 */ 1312 public int getCompoundPaddingBottom() { 1313 final Drawables dr = mDrawables; 1314 if (dr == null || dr.mDrawableBottom == null) { 1315 return mPaddingBottom; 1316 } else { 1317 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 1318 } 1319 } 1320 1321 /** 1322 * Returns the left padding of the view, plus space for the left 1323 * Drawable if any. 1324 */ 1325 public int getCompoundPaddingLeft() { 1326 final Drawables dr = mDrawables; 1327 if (dr == null || dr.mDrawableLeft == null) { 1328 return mPaddingLeft; 1329 } else { 1330 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 1331 } 1332 } 1333 1334 /** 1335 * Returns the right padding of the view, plus space for the right 1336 * Drawable if any. 1337 */ 1338 public int getCompoundPaddingRight() { 1339 final Drawables dr = mDrawables; 1340 if (dr == null || dr.mDrawableRight == null) { 1341 return mPaddingRight; 1342 } else { 1343 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 1344 } 1345 } 1346 1347 /** 1348 * Returns the extended top padding of the view, including both the 1349 * top Drawable if any and any extra space to keep more than maxLines 1350 * of text from showing. It is only valid to call this after measuring. 1351 */ 1352 public int getExtendedPaddingTop() { 1353 if (mMaxMode != LINES) { 1354 return getCompoundPaddingTop(); 1355 } 1356 1357 if (mLayout.getLineCount() <= mMaximum) { 1358 return getCompoundPaddingTop(); 1359 } 1360 1361 int top = getCompoundPaddingTop(); 1362 int bottom = getCompoundPaddingBottom(); 1363 int viewht = getHeight() - top - bottom; 1364 int layoutht = mLayout.getLineTop(mMaximum); 1365 1366 if (layoutht >= viewht) { 1367 return top; 1368 } 1369 1370 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1371 if (gravity == Gravity.TOP) { 1372 return top; 1373 } else if (gravity == Gravity.BOTTOM) { 1374 return top + viewht - layoutht; 1375 } else { // (gravity == Gravity.CENTER_VERTICAL) 1376 return top + (viewht - layoutht) / 2; 1377 } 1378 } 1379 1380 /** 1381 * Returns the extended bottom padding of the view, including both the 1382 * bottom Drawable if any and any extra space to keep more than maxLines 1383 * of text from showing. It is only valid to call this after measuring. 1384 */ 1385 public int getExtendedPaddingBottom() { 1386 if (mMaxMode != LINES) { 1387 return getCompoundPaddingBottom(); 1388 } 1389 1390 if (mLayout.getLineCount() <= mMaximum) { 1391 return getCompoundPaddingBottom(); 1392 } 1393 1394 int top = getCompoundPaddingTop(); 1395 int bottom = getCompoundPaddingBottom(); 1396 int viewht = getHeight() - top - bottom; 1397 int layoutht = mLayout.getLineTop(mMaximum); 1398 1399 if (layoutht >= viewht) { 1400 return bottom; 1401 } 1402 1403 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 1404 if (gravity == Gravity.TOP) { 1405 return bottom + viewht - layoutht; 1406 } else if (gravity == Gravity.BOTTOM) { 1407 return bottom; 1408 } else { // (gravity == Gravity.CENTER_VERTICAL) 1409 return bottom + (viewht - layoutht) / 2; 1410 } 1411 } 1412 1413 /** 1414 * Returns the total left padding of the view, including the left 1415 * Drawable if any. 1416 */ 1417 public int getTotalPaddingLeft() { 1418 return getCompoundPaddingLeft(); 1419 } 1420 1421 /** 1422 * Returns the total right padding of the view, including the right 1423 * Drawable if any. 1424 */ 1425 public int getTotalPaddingRight() { 1426 return getCompoundPaddingRight(); 1427 } 1428 1429 /** 1430 * Returns the total top padding of the view, including the top 1431 * Drawable if any, the extra space to keep more than maxLines 1432 * from showing, and the vertical offset for gravity, if any. 1433 */ 1434 public int getTotalPaddingTop() { 1435 return getExtendedPaddingTop() + getVerticalOffset(true); 1436 } 1437 1438 /** 1439 * Returns the total bottom padding of the view, including the bottom 1440 * Drawable if any, the extra space to keep more than maxLines 1441 * from showing, and the vertical offset for gravity, if any. 1442 */ 1443 public int getTotalPaddingBottom() { 1444 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 1445 } 1446 1447 /** 1448 * Sets the Drawables (if any) to appear to the left of, above, 1449 * to the right of, and below the text. Use null if you do not 1450 * want a Drawable there. The Drawables must already have had 1451 * {@link Drawable#setBounds} called. 1452 * 1453 * @attr ref android.R.styleable#TextView_drawableLeft 1454 * @attr ref android.R.styleable#TextView_drawableTop 1455 * @attr ref android.R.styleable#TextView_drawableRight 1456 * @attr ref android.R.styleable#TextView_drawableBottom 1457 */ 1458 public void setCompoundDrawables(Drawable left, Drawable top, 1459 Drawable right, Drawable bottom) { 1460 Drawables dr = mDrawables; 1461 1462 final boolean drawables = left != null || top != null 1463 || right != null || bottom != null; 1464 1465 if (!drawables) { 1466 // Clearing drawables... can we free the data structure? 1467 if (dr != null) { 1468 if (dr.mDrawablePadding == 0) { 1469 mDrawables = null; 1470 } else { 1471 // We need to retain the last set padding, so just clear 1472 // out all of the fields in the existing structure. 1473 if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null); 1474 dr.mDrawableLeft = null; 1475 if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null); 1476 dr.mDrawableTop = null; 1477 if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null); 1478 dr.mDrawableRight = null; 1479 if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null); 1480 dr.mDrawableBottom = null; 1481 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1482 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1483 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1484 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1485 } 1486 } 1487 } else { 1488 if (dr == null) { 1489 mDrawables = dr = new Drawables(); 1490 } 1491 1492 if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) { 1493 dr.mDrawableLeft.setCallback(null); 1494 } 1495 dr.mDrawableLeft = left; 1496 1497 if (dr.mDrawableTop != top && dr.mDrawableTop != null) { 1498 dr.mDrawableTop.setCallback(null); 1499 } 1500 dr.mDrawableTop = top; 1501 1502 if (dr.mDrawableRight != right && dr.mDrawableRight != null) { 1503 dr.mDrawableRight.setCallback(null); 1504 } 1505 dr.mDrawableRight = right; 1506 1507 if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) { 1508 dr.mDrawableBottom.setCallback(null); 1509 } 1510 dr.mDrawableBottom = bottom; 1511 1512 final Rect compoundRect = dr.mCompoundRect; 1513 int[] state; 1514 1515 state = getDrawableState(); 1516 1517 if (left != null) { 1518 left.setState(state); 1519 left.copyBounds(compoundRect); 1520 left.setCallback(this); 1521 dr.mDrawableSizeLeft = compoundRect.width(); 1522 dr.mDrawableHeightLeft = compoundRect.height(); 1523 } else { 1524 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 1525 } 1526 1527 if (right != null) { 1528 right.setState(state); 1529 right.copyBounds(compoundRect); 1530 right.setCallback(this); 1531 dr.mDrawableSizeRight = compoundRect.width(); 1532 dr.mDrawableHeightRight = compoundRect.height(); 1533 } else { 1534 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 1535 } 1536 1537 if (top != null) { 1538 top.setState(state); 1539 top.copyBounds(compoundRect); 1540 top.setCallback(this); 1541 dr.mDrawableSizeTop = compoundRect.height(); 1542 dr.mDrawableWidthTop = compoundRect.width(); 1543 } else { 1544 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 1545 } 1546 1547 if (bottom != null) { 1548 bottom.setState(state); 1549 bottom.copyBounds(compoundRect); 1550 bottom.setCallback(this); 1551 dr.mDrawableSizeBottom = compoundRect.height(); 1552 dr.mDrawableWidthBottom = compoundRect.width(); 1553 } else { 1554 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 1555 } 1556 } 1557 1558 invalidate(); 1559 requestLayout(); 1560 } 1561 1562 /** 1563 * Sets the Drawables (if any) to appear to the left of, above, 1564 * to the right of, and below the text. Use 0 if you do not 1565 * want a Drawable there. The Drawables' bounds will be set to 1566 * their intrinsic bounds. 1567 * 1568 * @param left Resource identifier of the left Drawable. 1569 * @param top Resource identifier of the top Drawable. 1570 * @param right Resource identifier of the right Drawable. 1571 * @param bottom Resource identifier of the bottom Drawable. 1572 * 1573 * @attr ref android.R.styleable#TextView_drawableLeft 1574 * @attr ref android.R.styleable#TextView_drawableTop 1575 * @attr ref android.R.styleable#TextView_drawableRight 1576 * @attr ref android.R.styleable#TextView_drawableBottom 1577 */ 1578 public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) { 1579 final Resources resources = getContext().getResources(); 1580 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null, 1581 top != 0 ? resources.getDrawable(top) : null, 1582 right != 0 ? resources.getDrawable(right) : null, 1583 bottom != 0 ? resources.getDrawable(bottom) : null); 1584 } 1585 1586 /** 1587 * Sets the Drawables (if any) to appear to the left of, above, 1588 * to the right of, and below the text. Use null if you do not 1589 * want a Drawable there. The Drawables' bounds will be set to 1590 * their intrinsic bounds. 1591 * 1592 * @attr ref android.R.styleable#TextView_drawableLeft 1593 * @attr ref android.R.styleable#TextView_drawableTop 1594 * @attr ref android.R.styleable#TextView_drawableRight 1595 * @attr ref android.R.styleable#TextView_drawableBottom 1596 */ 1597 public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top, 1598 Drawable right, Drawable bottom) { 1599 1600 if (left != null) { 1601 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 1602 } 1603 if (right != null) { 1604 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 1605 } 1606 if (top != null) { 1607 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 1608 } 1609 if (bottom != null) { 1610 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 1611 } 1612 setCompoundDrawables(left, top, right, bottom); 1613 } 1614 1615 /** 1616 * Returns drawables for the left, top, right, and bottom borders. 1617 */ 1618 public Drawable[] getCompoundDrawables() { 1619 final Drawables dr = mDrawables; 1620 if (dr != null) { 1621 return new Drawable[] { 1622 dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom 1623 }; 1624 } else { 1625 return new Drawable[] { null, null, null, null }; 1626 } 1627 } 1628 1629 /** 1630 * Sets the size of the padding between the compound drawables and 1631 * the text. 1632 * 1633 * @attr ref android.R.styleable#TextView_drawablePadding 1634 */ 1635 public void setCompoundDrawablePadding(int pad) { 1636 Drawables dr = mDrawables; 1637 if (pad == 0) { 1638 if (dr != null) { 1639 dr.mDrawablePadding = pad; 1640 } 1641 } else { 1642 if (dr == null) { 1643 mDrawables = dr = new Drawables(); 1644 } 1645 dr.mDrawablePadding = pad; 1646 } 1647 1648 invalidate(); 1649 requestLayout(); 1650 } 1651 1652 /** 1653 * Returns the padding between the compound drawables and the text. 1654 */ 1655 public int getCompoundDrawablePadding() { 1656 final Drawables dr = mDrawables; 1657 return dr != null ? dr.mDrawablePadding : 0; 1658 } 1659 1660 @Override 1661 public void setPadding(int left, int top, int right, int bottom) { 1662 if (left != mPaddingLeft || 1663 right != mPaddingRight || 1664 top != mPaddingTop || 1665 bottom != mPaddingBottom) { 1666 nullLayouts(); 1667 } 1668 1669 // the super call will requestLayout() 1670 super.setPadding(left, top, right, bottom); 1671 invalidate(); 1672 } 1673 1674 /** 1675 * Gets the autolink mask of the text. See {@link 1676 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1677 * possible values. 1678 * 1679 * @attr ref android.R.styleable#TextView_autoLink 1680 */ 1681 public final int getAutoLinkMask() { 1682 return mAutoLinkMask; 1683 } 1684 1685 /** 1686 * Sets the text color, size, style, hint color, and highlight color 1687 * from the specified TextAppearance resource. 1688 */ 1689 public void setTextAppearance(Context context, int resid) { 1690 TypedArray appearance = 1691 context.obtainStyledAttributes(resid, 1692 com.android.internal.R.styleable.TextAppearance); 1693 1694 int color; 1695 ColorStateList colors; 1696 int ts; 1697 1698 color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0); 1699 if (color != 0) { 1700 setHighlightColor(color); 1701 } 1702 1703 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1704 TextAppearance_textColor); 1705 if (colors != null) { 1706 setTextColor(colors); 1707 } 1708 1709 ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable. 1710 TextAppearance_textSize, 0); 1711 if (ts != 0) { 1712 setRawTextSize(ts); 1713 } 1714 1715 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1716 TextAppearance_textColorHint); 1717 if (colors != null) { 1718 setHintTextColor(colors); 1719 } 1720 1721 colors = appearance.getColorStateList(com.android.internal.R.styleable. 1722 TextAppearance_textColorLink); 1723 if (colors != null) { 1724 setLinkTextColor(colors); 1725 } 1726 1727 int typefaceIndex, styleIndex; 1728 1729 typefaceIndex = appearance.getInt(com.android.internal.R.styleable. 1730 TextAppearance_typeface, -1); 1731 styleIndex = appearance.getInt(com.android.internal.R.styleable. 1732 TextAppearance_textStyle, -1); 1733 1734 setTypefaceByIndex(typefaceIndex, styleIndex); 1735 1736 appearance.recycle(); 1737 } 1738 1739 /** 1740 * @return the size (in pixels) of the default text size in this TextView. 1741 */ 1742 public float getTextSize() { 1743 return mTextPaint.getTextSize(); 1744 } 1745 1746 /** 1747 * Set the default text size to the given value, interpreted as "scaled 1748 * pixel" units. This size is adjusted based on the current density and 1749 * user font size preference. 1750 * 1751 * @param size The scaled pixel size. 1752 * 1753 * @attr ref android.R.styleable#TextView_textSize 1754 */ 1755 @android.view.RemotableViewMethod 1756 public void setTextSize(float size) { 1757 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 1758 } 1759 1760 /** 1761 * Set the default text size to a given unit and value. See {@link 1762 * TypedValue} for the possible dimension units. 1763 * 1764 * @param unit The desired dimension unit. 1765 * @param size The desired size in the given units. 1766 * 1767 * @attr ref android.R.styleable#TextView_textSize 1768 */ 1769 public void setTextSize(int unit, float size) { 1770 Context c = getContext(); 1771 Resources r; 1772 1773 if (c == null) 1774 r = Resources.getSystem(); 1775 else 1776 r = c.getResources(); 1777 1778 setRawTextSize(TypedValue.applyDimension( 1779 unit, size, r.getDisplayMetrics())); 1780 } 1781 1782 private void setRawTextSize(float size) { 1783 if (size != mTextPaint.getTextSize()) { 1784 mTextPaint.setTextSize(size); 1785 1786 if (mLayout != null) { 1787 nullLayouts(); 1788 requestLayout(); 1789 invalidate(); 1790 } 1791 } 1792 } 1793 1794 /** 1795 * @return the extent by which text is currently being stretched 1796 * horizontally. This will usually be 1. 1797 */ 1798 public float getTextScaleX() { 1799 return mTextPaint.getTextScaleX(); 1800 } 1801 1802 /** 1803 * Sets the extent by which text should be stretched horizontally. 1804 * 1805 * @attr ref android.R.styleable#TextView_textScaleX 1806 */ 1807 @android.view.RemotableViewMethod 1808 public void setTextScaleX(float size) { 1809 if (size != mTextPaint.getTextScaleX()) { 1810 mUserSetTextScaleX = true; 1811 mTextPaint.setTextScaleX(size); 1812 1813 if (mLayout != null) { 1814 nullLayouts(); 1815 requestLayout(); 1816 invalidate(); 1817 } 1818 } 1819 } 1820 1821 /** 1822 * Sets the typeface and style in which the text should be displayed. 1823 * Note that not all Typeface families actually have bold and italic 1824 * variants, so you may need to use 1825 * {@link #setTypeface(Typeface, int)} to get the appearance 1826 * that you actually want. 1827 * 1828 * @attr ref android.R.styleable#TextView_typeface 1829 * @attr ref android.R.styleable#TextView_textStyle 1830 */ 1831 public void setTypeface(Typeface tf) { 1832 if (mTextPaint.getTypeface() != tf) { 1833 mTextPaint.setTypeface(tf); 1834 1835 if (mLayout != null) { 1836 nullLayouts(); 1837 requestLayout(); 1838 invalidate(); 1839 } 1840 } 1841 } 1842 1843 /** 1844 * @return the current typeface and style in which the text is being 1845 * displayed. 1846 */ 1847 public Typeface getTypeface() { 1848 return mTextPaint.getTypeface(); 1849 } 1850 1851 /** 1852 * Sets the text color for all the states (normal, selected, 1853 * focused) to be this color. 1854 * 1855 * @attr ref android.R.styleable#TextView_textColor 1856 */ 1857 @android.view.RemotableViewMethod 1858 public void setTextColor(int color) { 1859 mTextColor = ColorStateList.valueOf(color); 1860 updateTextColors(); 1861 } 1862 1863 /** 1864 * Sets the text color. 1865 * 1866 * @attr ref android.R.styleable#TextView_textColor 1867 */ 1868 public void setTextColor(ColorStateList colors) { 1869 if (colors == null) { 1870 throw new NullPointerException(); 1871 } 1872 1873 mTextColor = colors; 1874 updateTextColors(); 1875 } 1876 1877 /** 1878 * Return the set of text colors. 1879 * 1880 * @return Returns the set of text colors. 1881 */ 1882 public final ColorStateList getTextColors() { 1883 return mTextColor; 1884 } 1885 1886 /** 1887 * <p>Return the current color selected for normal text.</p> 1888 * 1889 * @return Returns the current text color. 1890 */ 1891 public final int getCurrentTextColor() { 1892 return mCurTextColor; 1893 } 1894 1895 /** 1896 * Sets the color used to display the selection highlight. 1897 * 1898 * @attr ref android.R.styleable#TextView_textColorHighlight 1899 */ 1900 @android.view.RemotableViewMethod 1901 public void setHighlightColor(int color) { 1902 if (mHighlightColor != color) { 1903 mHighlightColor = color; 1904 invalidate(); 1905 } 1906 } 1907 1908 /** 1909 * Gives the text a shadow of the specified radius and color, the specified 1910 * distance from its normal position. 1911 * 1912 * @attr ref android.R.styleable#TextView_shadowColor 1913 * @attr ref android.R.styleable#TextView_shadowDx 1914 * @attr ref android.R.styleable#TextView_shadowDy 1915 * @attr ref android.R.styleable#TextView_shadowRadius 1916 */ 1917 public void setShadowLayer(float radius, float dx, float dy, int color) { 1918 mTextPaint.setShadowLayer(radius, dx, dy, color); 1919 1920 mShadowRadius = radius; 1921 mShadowDx = dx; 1922 mShadowDy = dy; 1923 1924 invalidate(); 1925 } 1926 1927 /** 1928 * @return the base paint used for the text. Please use this only to 1929 * consult the Paint's properties and not to change them. 1930 */ 1931 public TextPaint getPaint() { 1932 return mTextPaint; 1933 } 1934 1935 /** 1936 * Sets the autolink mask of the text. See {@link 1937 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 1938 * possible values. 1939 * 1940 * @attr ref android.R.styleable#TextView_autoLink 1941 */ 1942 @android.view.RemotableViewMethod 1943 public final void setAutoLinkMask(int mask) { 1944 mAutoLinkMask = mask; 1945 } 1946 1947 /** 1948 * Sets whether the movement method will automatically be set to 1949 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1950 * set to nonzero and links are detected in {@link #setText}. 1951 * The default is true. 1952 * 1953 * @attr ref android.R.styleable#TextView_linksClickable 1954 */ 1955 @android.view.RemotableViewMethod 1956 public final void setLinksClickable(boolean whether) { 1957 mLinksClickable = whether; 1958 } 1959 1960 /** 1961 * Returns whether the movement method will automatically be set to 1962 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 1963 * set to nonzero and links are detected in {@link #setText}. 1964 * The default is true. 1965 * 1966 * @attr ref android.R.styleable#TextView_linksClickable 1967 */ 1968 public final boolean getLinksClickable() { 1969 return mLinksClickable; 1970 } 1971 1972 /** 1973 * Returns the list of URLSpans attached to the text 1974 * (by {@link Linkify} or otherwise) if any. You can call 1975 * {@link URLSpan#getURL} on them to find where they link to 1976 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 1977 * to find the region of the text they are attached to. 1978 */ 1979 public URLSpan[] getUrls() { 1980 if (mText instanceof Spanned) { 1981 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 1982 } else { 1983 return new URLSpan[0]; 1984 } 1985 } 1986 1987 /** 1988 * Sets the color of the hint text. 1989 * 1990 * @attr ref android.R.styleable#TextView_textColorHint 1991 */ 1992 @android.view.RemotableViewMethod 1993 public final void setHintTextColor(int color) { 1994 mHintTextColor = ColorStateList.valueOf(color); 1995 updateTextColors(); 1996 } 1997 1998 /** 1999 * Sets the color of the hint text. 2000 * 2001 * @attr ref android.R.styleable#TextView_textColorHint 2002 */ 2003 public final void setHintTextColor(ColorStateList colors) { 2004 mHintTextColor = colors; 2005 updateTextColors(); 2006 } 2007 2008 /** 2009 * <p>Return the color used to paint the hint text.</p> 2010 * 2011 * @return Returns the list of hint text colors. 2012 */ 2013 public final ColorStateList getHintTextColors() { 2014 return mHintTextColor; 2015 } 2016 2017 /** 2018 * <p>Return the current color selected to paint the hint text.</p> 2019 * 2020 * @return Returns the current hint text color. 2021 */ 2022 public final int getCurrentHintTextColor() { 2023 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 2024 } 2025 2026 /** 2027 * Sets the color of links in the text. 2028 * 2029 * @attr ref android.R.styleable#TextView_textColorLink 2030 */ 2031 @android.view.RemotableViewMethod 2032 public final void setLinkTextColor(int color) { 2033 mLinkTextColor = ColorStateList.valueOf(color); 2034 updateTextColors(); 2035 } 2036 2037 /** 2038 * Sets the color of links in the text. 2039 * 2040 * @attr ref android.R.styleable#TextView_textColorLink 2041 */ 2042 public final void setLinkTextColor(ColorStateList colors) { 2043 mLinkTextColor = colors; 2044 updateTextColors(); 2045 } 2046 2047 /** 2048 * <p>Returns the color used to paint links in the text.</p> 2049 * 2050 * @return Returns the list of link text colors. 2051 */ 2052 public final ColorStateList getLinkTextColors() { 2053 return mLinkTextColor; 2054 } 2055 2056 /** 2057 * Sets the horizontal alignment of the text and the 2058 * vertical gravity that will be used when there is extra space 2059 * in the TextView beyond what is required for the text itself. 2060 * 2061 * @see android.view.Gravity 2062 * @attr ref android.R.styleable#TextView_gravity 2063 */ 2064 public void setGravity(int gravity) { 2065 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == 0) { 2066 gravity |= Gravity.LEFT; 2067 } 2068 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 2069 gravity |= Gravity.TOP; 2070 } 2071 2072 boolean newLayout = false; 2073 2074 if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) != 2075 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK)) { 2076 newLayout = true; 2077 } 2078 2079 if (gravity != mGravity) { 2080 invalidate(); 2081 } 2082 2083 mGravity = gravity; 2084 2085 if (mLayout != null && newLayout) { 2086 // XXX this is heavy-handed because no actual content changes. 2087 int want = mLayout.getWidth(); 2088 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 2089 2090 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 2091 mRight - mLeft - getCompoundPaddingLeft() - 2092 getCompoundPaddingRight(), true); 2093 } 2094 } 2095 2096 /** 2097 * Returns the horizontal and vertical alignment of this TextView. 2098 * 2099 * @see android.view.Gravity 2100 * @attr ref android.R.styleable#TextView_gravity 2101 */ 2102 public int getGravity() { 2103 return mGravity; 2104 } 2105 2106 /** 2107 * @return the flags on the Paint being used to display the text. 2108 * @see Paint#getFlags 2109 */ 2110 public int getPaintFlags() { 2111 return mTextPaint.getFlags(); 2112 } 2113 2114 /** 2115 * Sets flags on the Paint being used to display the text and 2116 * reflows the text if they are different from the old flags. 2117 * @see Paint#setFlags 2118 */ 2119 @android.view.RemotableViewMethod 2120 public void setPaintFlags(int flags) { 2121 if (mTextPaint.getFlags() != flags) { 2122 mTextPaint.setFlags(flags); 2123 2124 if (mLayout != null) { 2125 nullLayouts(); 2126 requestLayout(); 2127 invalidate(); 2128 } 2129 } 2130 } 2131 2132 /** 2133 * Sets whether the text should be allowed to be wider than the 2134 * View is. If false, it will be wrapped to the width of the View. 2135 * 2136 * @attr ref android.R.styleable#TextView_scrollHorizontally 2137 */ 2138 public void setHorizontallyScrolling(boolean whether) { 2139 mHorizontallyScrolling = whether; 2140 2141 if (mLayout != null) { 2142 nullLayouts(); 2143 requestLayout(); 2144 invalidate(); 2145 } 2146 } 2147 2148 /** 2149 * Makes the TextView at least this many lines tall. 2150 * 2151 * Setting this value overrides any other (minimum) height setting. A single line TextView will 2152 * set this value to 1. 2153 * 2154 * @attr ref android.R.styleable#TextView_minLines 2155 */ 2156 @android.view.RemotableViewMethod 2157 public void setMinLines(int minlines) { 2158 mMinimum = minlines; 2159 mMinMode = LINES; 2160 2161 requestLayout(); 2162 invalidate(); 2163 } 2164 2165 /** 2166 * Makes the TextView at least this many pixels tall. 2167 * 2168 * Setting this value overrides any other (minimum) number of lines setting. 2169 * 2170 * @attr ref android.R.styleable#TextView_minHeight 2171 */ 2172 @android.view.RemotableViewMethod 2173 public void setMinHeight(int minHeight) { 2174 mMinimum = minHeight; 2175 mMinMode = PIXELS; 2176 2177 requestLayout(); 2178 invalidate(); 2179 } 2180 2181 /** 2182 * Makes the TextView at most this many lines tall. 2183 * 2184 * Setting this value overrides any other (maximum) height setting. 2185 * 2186 * @attr ref android.R.styleable#TextView_maxLines 2187 */ 2188 @android.view.RemotableViewMethod 2189 public void setMaxLines(int maxlines) { 2190 mMaximum = maxlines; 2191 mMaxMode = LINES; 2192 2193 requestLayout(); 2194 invalidate(); 2195 } 2196 2197 /** 2198 * Makes the TextView at most this many pixels tall. This option is mutually exclusive with the 2199 * {@link #setMaxLines(int)} method. 2200 * 2201 * Setting this value overrides any other (maximum) number of lines setting. 2202 * 2203 * @attr ref android.R.styleable#TextView_maxHeight 2204 */ 2205 @android.view.RemotableViewMethod 2206 public void setMaxHeight(int maxHeight) { 2207 mMaximum = maxHeight; 2208 mMaxMode = PIXELS; 2209 2210 requestLayout(); 2211 invalidate(); 2212 } 2213 2214 /** 2215 * Makes the TextView exactly this many lines tall. 2216 * 2217 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2218 * height setting. A single line TextView will set this value to 1. 2219 * 2220 * @attr ref android.R.styleable#TextView_lines 2221 */ 2222 @android.view.RemotableViewMethod 2223 public void setLines(int lines) { 2224 mMaximum = mMinimum = lines; 2225 mMaxMode = mMinMode = LINES; 2226 2227 requestLayout(); 2228 invalidate(); 2229 } 2230 2231 /** 2232 * Makes the TextView exactly this many pixels tall. 2233 * You could do the same thing by specifying this number in the 2234 * LayoutParams. 2235 * 2236 * Note that setting this value overrides any other (minimum / maximum) number of lines or 2237 * height setting. 2238 * 2239 * @attr ref android.R.styleable#TextView_height 2240 */ 2241 @android.view.RemotableViewMethod 2242 public void setHeight(int pixels) { 2243 mMaximum = mMinimum = pixels; 2244 mMaxMode = mMinMode = PIXELS; 2245 2246 requestLayout(); 2247 invalidate(); 2248 } 2249 2250 /** 2251 * Makes the TextView at least this many ems wide 2252 * 2253 * @attr ref android.R.styleable#TextView_minEms 2254 */ 2255 @android.view.RemotableViewMethod 2256 public void setMinEms(int minems) { 2257 mMinWidth = minems; 2258 mMinWidthMode = EMS; 2259 2260 requestLayout(); 2261 invalidate(); 2262 } 2263 2264 /** 2265 * Makes the TextView at least this many pixels wide 2266 * 2267 * @attr ref android.R.styleable#TextView_minWidth 2268 */ 2269 @android.view.RemotableViewMethod 2270 public void setMinWidth(int minpixels) { 2271 mMinWidth = minpixels; 2272 mMinWidthMode = PIXELS; 2273 2274 requestLayout(); 2275 invalidate(); 2276 } 2277 2278 /** 2279 * Makes the TextView at most this many ems wide 2280 * 2281 * @attr ref android.R.styleable#TextView_maxEms 2282 */ 2283 @android.view.RemotableViewMethod 2284 public void setMaxEms(int maxems) { 2285 mMaxWidth = maxems; 2286 mMaxWidthMode = EMS; 2287 2288 requestLayout(); 2289 invalidate(); 2290 } 2291 2292 /** 2293 * Makes the TextView at most this many pixels wide 2294 * 2295 * @attr ref android.R.styleable#TextView_maxWidth 2296 */ 2297 @android.view.RemotableViewMethod 2298 public void setMaxWidth(int maxpixels) { 2299 mMaxWidth = maxpixels; 2300 mMaxWidthMode = PIXELS; 2301 2302 requestLayout(); 2303 invalidate(); 2304 } 2305 2306 /** 2307 * Makes the TextView exactly this many ems wide 2308 * 2309 * @attr ref android.R.styleable#TextView_ems 2310 */ 2311 @android.view.RemotableViewMethod 2312 public void setEms(int ems) { 2313 mMaxWidth = mMinWidth = ems; 2314 mMaxWidthMode = mMinWidthMode = EMS; 2315 2316 requestLayout(); 2317 invalidate(); 2318 } 2319 2320 /** 2321 * Makes the TextView exactly this many pixels wide. 2322 * You could do the same thing by specifying this number in the 2323 * LayoutParams. 2324 * 2325 * @attr ref android.R.styleable#TextView_width 2326 */ 2327 @android.view.RemotableViewMethod 2328 public void setWidth(int pixels) { 2329 mMaxWidth = mMinWidth = pixels; 2330 mMaxWidthMode = mMinWidthMode = PIXELS; 2331 2332 requestLayout(); 2333 invalidate(); 2334 } 2335 2336 2337 /** 2338 * Sets line spacing for this TextView. Each line will have its height 2339 * multiplied by <code>mult</code> and have <code>add</code> added to it. 2340 * 2341 * @attr ref android.R.styleable#TextView_lineSpacingExtra 2342 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 2343 */ 2344 public void setLineSpacing(float add, float mult) { 2345 mSpacingMult = mult; 2346 mSpacingAdd = add; 2347 2348 if (mLayout != null) { 2349 nullLayouts(); 2350 requestLayout(); 2351 invalidate(); 2352 } 2353 } 2354 2355 /** 2356 * Convenience method: Append the specified text to the TextView's 2357 * display buffer, upgrading it to BufferType.EDITABLE if it was 2358 * not already editable. 2359 */ 2360 public final void append(CharSequence text) { 2361 append(text, 0, text.length()); 2362 } 2363 2364 /** 2365 * Convenience method: Append the specified text slice to the TextView's 2366 * display buffer, upgrading it to BufferType.EDITABLE if it was 2367 * not already editable. 2368 */ 2369 public void append(CharSequence text, int start, int end) { 2370 if (!(mText instanceof Editable)) { 2371 setText(mText, BufferType.EDITABLE); 2372 } 2373 2374 ((Editable) mText).append(text, start, end); 2375 } 2376 2377 private void updateTextColors() { 2378 boolean inval = false; 2379 int color = mTextColor.getColorForState(getDrawableState(), 0); 2380 if (color != mCurTextColor) { 2381 mCurTextColor = color; 2382 inval = true; 2383 } 2384 if (mLinkTextColor != null) { 2385 color = mLinkTextColor.getColorForState(getDrawableState(), 0); 2386 if (color != mTextPaint.linkColor) { 2387 mTextPaint.linkColor = color; 2388 inval = true; 2389 } 2390 } 2391 if (mHintTextColor != null) { 2392 color = mHintTextColor.getColorForState(getDrawableState(), 0); 2393 if (color != mCurHintTextColor && mText.length() == 0) { 2394 mCurHintTextColor = color; 2395 inval = true; 2396 } 2397 } 2398 if (inval) { 2399 invalidate(); 2400 } 2401 } 2402 2403 @Override 2404 protected void drawableStateChanged() { 2405 super.drawableStateChanged(); 2406 if (mTextColor != null && mTextColor.isStateful() 2407 || (mHintTextColor != null && mHintTextColor.isStateful()) 2408 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 2409 updateTextColors(); 2410 } 2411 2412 final Drawables dr = mDrawables; 2413 if (dr != null) { 2414 int[] state = getDrawableState(); 2415 if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) { 2416 dr.mDrawableTop.setState(state); 2417 } 2418 if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) { 2419 dr.mDrawableBottom.setState(state); 2420 } 2421 if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) { 2422 dr.mDrawableLeft.setState(state); 2423 } 2424 if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) { 2425 dr.mDrawableRight.setState(state); 2426 } 2427 } 2428 } 2429 2430 /** 2431 * User interface state that is stored by TextView for implementing 2432 * {@link View#onSaveInstanceState}. 2433 */ 2434 public static class SavedState extends BaseSavedState { 2435 int selStart; 2436 int selEnd; 2437 CharSequence text; 2438 boolean frozenWithFocus; 2439 CharSequence error; 2440 2441 SavedState(Parcelable superState) { 2442 super(superState); 2443 } 2444 2445 @Override 2446 public void writeToParcel(Parcel out, int flags) { 2447 super.writeToParcel(out, flags); 2448 out.writeInt(selStart); 2449 out.writeInt(selEnd); 2450 out.writeInt(frozenWithFocus ? 1 : 0); 2451 TextUtils.writeToParcel(text, out, flags); 2452 2453 if (error == null) { 2454 out.writeInt(0); 2455 } else { 2456 out.writeInt(1); 2457 TextUtils.writeToParcel(error, out, flags); 2458 } 2459 } 2460 2461 @Override 2462 public String toString() { 2463 String str = "TextView.SavedState{" 2464 + Integer.toHexString(System.identityHashCode(this)) 2465 + " start=" + selStart + " end=" + selEnd; 2466 if (text != null) { 2467 str += " text=" + text; 2468 } 2469 return str + "}"; 2470 } 2471 2472 @SuppressWarnings("hiding") 2473 public static final Parcelable.Creator<SavedState> CREATOR 2474 = new Parcelable.Creator<SavedState>() { 2475 public SavedState createFromParcel(Parcel in) { 2476 return new SavedState(in); 2477 } 2478 2479 public SavedState[] newArray(int size) { 2480 return new SavedState[size]; 2481 } 2482 }; 2483 2484 private SavedState(Parcel in) { 2485 super(in); 2486 selStart = in.readInt(); 2487 selEnd = in.readInt(); 2488 frozenWithFocus = (in.readInt() != 0); 2489 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2490 2491 if (in.readInt() != 0) { 2492 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 2493 } 2494 } 2495 } 2496 2497 @Override 2498 public Parcelable onSaveInstanceState() { 2499 Parcelable superState = super.onSaveInstanceState(); 2500 2501 // Save state if we are forced to 2502 boolean save = mFreezesText; 2503 int start = 0; 2504 int end = 0; 2505 2506 if (mText != null) { 2507 start = getSelectionStart(); 2508 end = getSelectionEnd(); 2509 if (start >= 0 || end >= 0) { 2510 // Or save state if there is a selection 2511 save = true; 2512 } 2513 } 2514 2515 if (save) { 2516 SavedState ss = new SavedState(superState); 2517 // XXX Should also save the current scroll position! 2518 ss.selStart = start; 2519 ss.selEnd = end; 2520 2521 if (mText instanceof Spanned) { 2522 /* 2523 * Calling setText() strips off any ChangeWatchers; 2524 * strip them now to avoid leaking references. 2525 * But do it to a copy so that if there are any 2526 * further changes to the text of this view, it 2527 * won't get into an inconsistent state. 2528 */ 2529 2530 Spannable sp = new SpannableString(mText); 2531 2532 for (ChangeWatcher cw : 2533 sp.getSpans(0, sp.length(), ChangeWatcher.class)) { 2534 sp.removeSpan(cw); 2535 } 2536 2537 ss.text = sp; 2538 } else { 2539 ss.text = mText.toString(); 2540 } 2541 2542 if (isFocused() && start >= 0 && end >= 0) { 2543 ss.frozenWithFocus = true; 2544 } 2545 2546 ss.error = mError; 2547 2548 return ss; 2549 } 2550 2551 return superState; 2552 } 2553 2554 @Override 2555 public void onRestoreInstanceState(Parcelable state) { 2556 if (!(state instanceof SavedState)) { 2557 super.onRestoreInstanceState(state); 2558 return; 2559 } 2560 2561 SavedState ss = (SavedState)state; 2562 super.onRestoreInstanceState(ss.getSuperState()); 2563 2564 // XXX restore buffer type too, as well as lots of other stuff 2565 if (ss.text != null) { 2566 setText(ss.text); 2567 } 2568 2569 if (ss.selStart >= 0 && ss.selEnd >= 0) { 2570 if (mText instanceof Spannable) { 2571 int len = mText.length(); 2572 2573 if (ss.selStart > len || ss.selEnd > len) { 2574 String restored = ""; 2575 2576 if (ss.text != null) { 2577 restored = "(restored) "; 2578 } 2579 2580 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + 2581 "/" + ss.selEnd + " out of range for " + restored + 2582 "text " + mText); 2583 } else { 2584 Selection.setSelection((Spannable) mText, ss.selStart, 2585 ss.selEnd); 2586 2587 if (ss.frozenWithFocus) { 2588 mFrozenWithFocus = true; 2589 } 2590 } 2591 } 2592 } 2593 2594 if (ss.error != null) { 2595 final CharSequence error = ss.error; 2596 // Display the error later, after the first layout pass 2597 post(new Runnable() { 2598 public void run() { 2599 setError(error); 2600 } 2601 }); 2602 } 2603 } 2604 2605 /** 2606 * Control whether this text view saves its entire text contents when 2607 * freezing to an icicle, in addition to dynamic state such as cursor 2608 * position. By default this is false, not saving the text. Set to true 2609 * if the text in the text view is not being saved somewhere else in 2610 * persistent storage (such as in a content provider) so that if the 2611 * view is later thawed the user will not lose their data. 2612 * 2613 * @param freezesText Controls whether a frozen icicle should include the 2614 * entire text data: true to include it, false to not. 2615 * 2616 * @attr ref android.R.styleable#TextView_freezesText 2617 */ 2618 @android.view.RemotableViewMethod 2619 public void setFreezesText(boolean freezesText) { 2620 mFreezesText = freezesText; 2621 } 2622 2623 /** 2624 * Return whether this text view is including its entire text contents 2625 * in frozen icicles. 2626 * 2627 * @return Returns true if text is included, false if it isn't. 2628 * 2629 * @see #setFreezesText 2630 */ 2631 public boolean getFreezesText() { 2632 return mFreezesText; 2633 } 2634 2635 /////////////////////////////////////////////////////////////////////////// 2636 2637 /** 2638 * Sets the Factory used to create new Editables. 2639 */ 2640 public final void setEditableFactory(Editable.Factory factory) { 2641 mEditableFactory = factory; 2642 setText(mText); 2643 } 2644 2645 /** 2646 * Sets the Factory used to create new Spannables. 2647 */ 2648 public final void setSpannableFactory(Spannable.Factory factory) { 2649 mSpannableFactory = factory; 2650 setText(mText); 2651 } 2652 2653 /** 2654 * Sets the string value of the TextView. TextView <em>does not</em> accept 2655 * HTML-like formatting, which you can do with text strings in XML resource files. 2656 * To style your strings, attach android.text.style.* objects to a 2657 * {@link android.text.SpannableString SpannableString}, or see the 2658 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 2659 * Available Resource Types</a> documentation for an example of setting 2660 * formatted text in the XML resource file. 2661 * 2662 * @attr ref android.R.styleable#TextView_text 2663 */ 2664 @android.view.RemotableViewMethod 2665 public final void setText(CharSequence text) { 2666 setText(text, mBufferType); 2667 } 2668 2669 /** 2670 * Like {@link #setText(CharSequence)}, 2671 * except that the cursor position (if any) is retained in the new text. 2672 * 2673 * @param text The new text to place in the text view. 2674 * 2675 * @see #setText(CharSequence) 2676 */ 2677 @android.view.RemotableViewMethod 2678 public final void setTextKeepState(CharSequence text) { 2679 setTextKeepState(text, mBufferType); 2680 } 2681 2682 /** 2683 * Sets the text that this TextView is to display (see 2684 * {@link #setText(CharSequence)}) and also sets whether it is stored 2685 * in a styleable/spannable buffer and whether it is editable. 2686 * 2687 * @attr ref android.R.styleable#TextView_text 2688 * @attr ref android.R.styleable#TextView_bufferType 2689 */ 2690 public void setText(CharSequence text, BufferType type) { 2691 setText(text, type, true, 0); 2692 2693 if (mCharWrapper != null) { 2694 mCharWrapper.mChars = null; 2695 } 2696 } 2697 2698 private void setText(CharSequence text, BufferType type, 2699 boolean notifyBefore, int oldlen) { 2700 if (text == null) { 2701 text = ""; 2702 } 2703 2704 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 2705 2706 if (text instanceof Spanned && 2707 ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 2708 setHorizontalFadingEdgeEnabled(true); 2709 setEllipsize(TextUtils.TruncateAt.MARQUEE); 2710 } 2711 2712 int n = mFilters.length; 2713 for (int i = 0; i < n; i++) { 2714 CharSequence out = mFilters[i].filter(text, 0, text.length(), 2715 EMPTY_SPANNED, 0, 0); 2716 if (out != null) { 2717 text = out; 2718 } 2719 } 2720 2721 if (notifyBefore) { 2722 if (mText != null) { 2723 oldlen = mText.length(); 2724 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 2725 } else { 2726 sendBeforeTextChanged("", 0, 0, text.length()); 2727 } 2728 } 2729 2730 boolean needEditableForNotification = false; 2731 2732 if (mListeners != null && mListeners.size() != 0) { 2733 needEditableForNotification = true; 2734 } 2735 2736 if (type == BufferType.EDITABLE || mInput != null || 2737 needEditableForNotification) { 2738 Editable t = mEditableFactory.newEditable(text); 2739 text = t; 2740 setFilters(t, mFilters); 2741 InputMethodManager imm = InputMethodManager.peekInstance(); 2742 if (imm != null) imm.restartInput(this); 2743 } else if (type == BufferType.SPANNABLE || mMovement != null) { 2744 text = mSpannableFactory.newSpannable(text); 2745 } else if (!(text instanceof CharWrapper)) { 2746 text = TextUtils.stringOrSpannedString(text); 2747 } 2748 2749 if (mAutoLinkMask != 0) { 2750 Spannable s2; 2751 2752 if (type == BufferType.EDITABLE || text instanceof Spannable) { 2753 s2 = (Spannable) text; 2754 } else { 2755 s2 = mSpannableFactory.newSpannable(text); 2756 } 2757 2758 if (Linkify.addLinks(s2, mAutoLinkMask)) { 2759 text = s2; 2760 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 2761 2762 /* 2763 * We must go ahead and set the text before changing the 2764 * movement method, because setMovementMethod() may call 2765 * setText() again to try to upgrade the buffer type. 2766 */ 2767 mText = text; 2768 2769 // Do not change the movement method for text that support text selection as it 2770 // would prevent an arbitrary cursor displacement. 2771 final boolean hasTextSelection = this instanceof EditText || mTextIsSelectable; 2772 if (mLinksClickable && !hasTextSelection) { 2773 setMovementMethod(LinkMovementMethod.getInstance()); 2774 } 2775 } 2776 } 2777 2778 mBufferType = type; 2779 mText = text; 2780 2781 if (mTransformation == null) 2782 mTransformed = text; 2783 else 2784 mTransformed = mTransformation.getTransformation(text, this); 2785 2786 final int textLength = text.length(); 2787 2788 if (text instanceof Spannable) { 2789 Spannable sp = (Spannable) text; 2790 2791 // Remove any ChangeWatchers that might have come 2792 // from other TextViews. 2793 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 2794 final int count = watchers.length; 2795 for (int i = 0; i < count; i++) 2796 sp.removeSpan(watchers[i]); 2797 2798 if (mChangeWatcher == null) 2799 mChangeWatcher = new ChangeWatcher(); 2800 2801 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE | 2802 (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 2803 2804 if (mInput != null) { 2805 sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2806 } 2807 2808 if (mTransformation != null) { 2809 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 2810 2811 } 2812 2813 if (mMovement != null) { 2814 mMovement.initialize(this, (Spannable) text); 2815 2816 /* 2817 * Initializing the movement method will have set the 2818 * selection, so reset mSelectionMoved to keep that from 2819 * interfering with the normal on-focus selection-setting. 2820 */ 2821 mSelectionMoved = false; 2822 } 2823 } 2824 2825 if (mLayout != null) { 2826 checkForRelayout(); 2827 } 2828 2829 sendOnTextChanged(text, 0, oldlen, textLength); 2830 onTextChanged(text, 0, oldlen, textLength); 2831 2832 if (needEditableForNotification) { 2833 sendAfterTextChanged((Editable) text); 2834 } 2835 2836 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 2837 prepareCursorControllers(); 2838 } 2839 2840 /** 2841 * Sets the TextView to display the specified slice of the specified 2842 * char array. You must promise that you will not change the contents 2843 * of the array except for right before another call to setText(), 2844 * since the TextView has no way to know that the text 2845 * has changed and that it needs to invalidate and re-layout. 2846 */ 2847 public final void setText(char[] text, int start, int len) { 2848 int oldlen = 0; 2849 2850 if (start < 0 || len < 0 || start + len > text.length) { 2851 throw new IndexOutOfBoundsException(start + ", " + len); 2852 } 2853 2854 /* 2855 * We must do the before-notification here ourselves because if 2856 * the old text is a CharWrapper we destroy it before calling 2857 * into the normal path. 2858 */ 2859 if (mText != null) { 2860 oldlen = mText.length(); 2861 sendBeforeTextChanged(mText, 0, oldlen, len); 2862 } else { 2863 sendBeforeTextChanged("", 0, 0, len); 2864 } 2865 2866 if (mCharWrapper == null) { 2867 mCharWrapper = new CharWrapper(text, start, len); 2868 } else { 2869 mCharWrapper.set(text, start, len); 2870 } 2871 2872 setText(mCharWrapper, mBufferType, false, oldlen); 2873 } 2874 2875 private static class CharWrapper 2876 implements CharSequence, GetChars, GraphicsOperations { 2877 private char[] mChars; 2878 private int mStart, mLength; 2879 2880 public CharWrapper(char[] chars, int start, int len) { 2881 mChars = chars; 2882 mStart = start; 2883 mLength = len; 2884 } 2885 2886 /* package */ void set(char[] chars, int start, int len) { 2887 mChars = chars; 2888 mStart = start; 2889 mLength = len; 2890 } 2891 2892 public int length() { 2893 return mLength; 2894 } 2895 2896 public char charAt(int off) { 2897 return mChars[off + mStart]; 2898 } 2899 2900 @Override 2901 public String toString() { 2902 return new String(mChars, mStart, mLength); 2903 } 2904 2905 public CharSequence subSequence(int start, int end) { 2906 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2907 throw new IndexOutOfBoundsException(start + ", " + end); 2908 } 2909 2910 return new String(mChars, start + mStart, end - start); 2911 } 2912 2913 public void getChars(int start, int end, char[] buf, int off) { 2914 if (start < 0 || end < 0 || start > mLength || end > mLength) { 2915 throw new IndexOutOfBoundsException(start + ", " + end); 2916 } 2917 2918 System.arraycopy(mChars, start + mStart, buf, off, end - start); 2919 } 2920 2921 public void drawText(Canvas c, int start, int end, 2922 float x, float y, Paint p) { 2923 c.drawText(mChars, start + mStart, end - start, x, y, p); 2924 } 2925 2926 public void drawTextRun(Canvas c, int start, int end, 2927 int contextStart, int contextEnd, float x, float y, int flags, Paint p) { 2928 int count = end - start; 2929 int contextCount = contextEnd - contextStart; 2930 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 2931 contextCount, x, y, flags, p); 2932 } 2933 2934 public float measureText(int start, int end, Paint p) { 2935 return p.measureText(mChars, start + mStart, end - start); 2936 } 2937 2938 public int getTextWidths(int start, int end, float[] widths, Paint p) { 2939 return p.getTextWidths(mChars, start + mStart, end - start, widths); 2940 } 2941 2942 public float getTextRunAdvances(int start, int end, int contextStart, 2943 int contextEnd, int flags, float[] advances, int advancesIndex, 2944 Paint p) { 2945 int count = end - start; 2946 int contextCount = contextEnd - contextStart; 2947 return p.getTextRunAdvances(mChars, start + mStart, count, 2948 contextStart + mStart, contextCount, flags, advances, 2949 advancesIndex); 2950 } 2951 2952 public int getTextRunCursor(int contextStart, int contextEnd, int flags, 2953 int offset, int cursorOpt, Paint p) { 2954 int contextCount = contextEnd - contextStart; 2955 return p.getTextRunCursor(mChars, contextStart + mStart, 2956 contextCount, flags, offset + mStart, cursorOpt); 2957 } 2958 } 2959 2960 /** 2961 * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)}, 2962 * except that the cursor position (if any) is retained in the new text. 2963 * 2964 * @see #setText(CharSequence, android.widget.TextView.BufferType) 2965 */ 2966 public final void setTextKeepState(CharSequence text, BufferType type) { 2967 int start = getSelectionStart(); 2968 int end = getSelectionEnd(); 2969 int len = text.length(); 2970 2971 setText(text, type); 2972 2973 if (start >= 0 || end >= 0) { 2974 if (mText instanceof Spannable) { 2975 Selection.setSelection((Spannable) mText, 2976 Math.max(0, Math.min(start, len)), 2977 Math.max(0, Math.min(end, len))); 2978 } 2979 } 2980 } 2981 2982 @android.view.RemotableViewMethod 2983 public final void setText(int resid) { 2984 setText(getContext().getResources().getText(resid)); 2985 } 2986 2987 public final void setText(int resid, BufferType type) { 2988 setText(getContext().getResources().getText(resid), type); 2989 } 2990 2991 /** 2992 * Sets the text to be displayed when the text of the TextView is empty. 2993 * Null means to use the normal empty text. The hint does not currently 2994 * participate in determining the size of the view. 2995 * 2996 * @attr ref android.R.styleable#TextView_hint 2997 */ 2998 @android.view.RemotableViewMethod 2999 public final void setHint(CharSequence hint) { 3000 mHint = TextUtils.stringOrSpannedString(hint); 3001 3002 if (mLayout != null) { 3003 checkForRelayout(); 3004 } 3005 3006 if (mText.length() == 0) { 3007 invalidate(); 3008 } 3009 } 3010 3011 /** 3012 * Sets the text to be displayed when the text of the TextView is empty, 3013 * from a resource. 3014 * 3015 * @attr ref android.R.styleable#TextView_hint 3016 */ 3017 @android.view.RemotableViewMethod 3018 public final void setHint(int resid) { 3019 setHint(getContext().getResources().getText(resid)); 3020 } 3021 3022 /** 3023 * Returns the hint that is displayed when the text of the TextView 3024 * is empty. 3025 * 3026 * @attr ref android.R.styleable#TextView_hint 3027 */ 3028 @ViewDebug.CapturedViewProperty 3029 public CharSequence getHint() { 3030 return mHint; 3031 } 3032 3033 private boolean isMultilineInputType(int type) { 3034 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) == 3035 (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 3036 } 3037 3038 /** 3039 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 3040 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 3041 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 3042 * then a soft keyboard will not be displayed for this text view. 3043 * 3044 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 3045 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 3046 * type. 3047 * 3048 * @see #getInputType() 3049 * @see #setRawInputType(int) 3050 * @see android.text.InputType 3051 * @attr ref android.R.styleable#TextView_inputType 3052 */ 3053 public void setInputType(int type) { 3054 final boolean wasPassword = isPasswordInputType(mInputType); 3055 final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType); 3056 setInputType(type, false); 3057 final boolean isPassword = isPasswordInputType(type); 3058 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 3059 boolean forceUpdate = false; 3060 if (isPassword) { 3061 setTransformationMethod(PasswordTransformationMethod.getInstance()); 3062 setTypefaceByIndex(MONOSPACE, 0); 3063 } else if (isVisiblePassword) { 3064 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3065 forceUpdate = true; 3066 } 3067 setTypefaceByIndex(MONOSPACE, 0); 3068 } else if (wasPassword || wasVisiblePassword) { 3069 // not in password mode, clean up typeface and transformation 3070 setTypefaceByIndex(-1, -1); 3071 if (mTransformation == PasswordTransformationMethod.getInstance()) { 3072 forceUpdate = true; 3073 } 3074 } 3075 3076 boolean singleLine = !isMultilineInputType(type); 3077 3078 // We need to update the single line mode if it has changed or we 3079 // were previously in password mode. 3080 if (mSingleLine != singleLine || forceUpdate) { 3081 // Change single line mode, but only change the transformation if 3082 // we are not in password mode. 3083 applySingleLine(singleLine, !isPassword, true); 3084 } 3085 3086 InputMethodManager imm = InputMethodManager.peekInstance(); 3087 if (imm != null) imm.restartInput(this); 3088 } 3089 3090 /** 3091 * It would be better to rely on the input type for everything. A password inputType should have 3092 * a password transformation. We should hence use isPasswordInputType instead of this method. 3093 * 3094 * We should: 3095 * - Call setInputType in setKeyListener instead of changing the input type directly (which 3096 * would install the correct transformation). 3097 * - Refuse the installation of a non-password transformation in setTransformation if the input 3098 * type is password. 3099 * 3100 * However, this is like this for legacy reasons and we cannot break existing apps. This method 3101 * is useful since it matches what the user can see (obfuscated text or not). 3102 * 3103 * @return true if the current transformation method is of the password type. 3104 */ 3105 private boolean hasPasswordTransformationMethod() { 3106 return mTransformation instanceof PasswordTransformationMethod; 3107 } 3108 3109 private boolean isPasswordInputType(int inputType) { 3110 final int variation = 3111 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3112 return variation 3113 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 3114 || variation 3115 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 3116 || variation 3117 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 3118 } 3119 3120 private boolean isVisiblePasswordInputType(int inputType) { 3121 final int variation = 3122 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 3123 return variation 3124 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 3125 } 3126 3127 /** 3128 * Directly change the content type integer of the text view, without 3129 * modifying any other state. 3130 * @see #setInputType(int) 3131 * @see android.text.InputType 3132 * @attr ref android.R.styleable#TextView_inputType 3133 */ 3134 public void setRawInputType(int type) { 3135 mInputType = type; 3136 } 3137 3138 private void setInputType(int type, boolean direct) { 3139 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 3140 KeyListener input; 3141 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 3142 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 3143 TextKeyListener.Capitalize cap; 3144 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 3145 cap = TextKeyListener.Capitalize.CHARACTERS; 3146 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 3147 cap = TextKeyListener.Capitalize.WORDS; 3148 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 3149 cap = TextKeyListener.Capitalize.SENTENCES; 3150 } else { 3151 cap = TextKeyListener.Capitalize.NONE; 3152 } 3153 input = TextKeyListener.getInstance(autotext, cap); 3154 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 3155 input = DigitsKeyListener.getInstance( 3156 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 3157 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 3158 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 3159 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 3160 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 3161 input = DateKeyListener.getInstance(); 3162 break; 3163 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 3164 input = TimeKeyListener.getInstance(); 3165 break; 3166 default: 3167 input = DateTimeKeyListener.getInstance(); 3168 break; 3169 } 3170 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 3171 input = DialerKeyListener.getInstance(); 3172 } else { 3173 input = TextKeyListener.getInstance(); 3174 } 3175 setRawInputType(type); 3176 if (direct) mInput = input; 3177 else { 3178 setKeyListenerOnly(input); 3179 } 3180 } 3181 3182 /** 3183 * Get the type of the content. 3184 * 3185 * @see #setInputType(int) 3186 * @see android.text.InputType 3187 */ 3188 public int getInputType() { 3189 return mInputType; 3190 } 3191 3192 /** 3193 * Change the editor type integer associated with the text view, which 3194 * will be reported to an IME with {@link EditorInfo#imeOptions} when it 3195 * has focus. 3196 * @see #getImeOptions 3197 * @see android.view.inputmethod.EditorInfo 3198 * @attr ref android.R.styleable#TextView_imeOptions 3199 */ 3200 public void setImeOptions(int imeOptions) { 3201 if (mInputContentType == null) { 3202 mInputContentType = new InputContentType(); 3203 } 3204 mInputContentType.imeOptions = imeOptions; 3205 } 3206 3207 /** 3208 * Get the type of the IME editor. 3209 * 3210 * @see #setImeOptions(int) 3211 * @see android.view.inputmethod.EditorInfo 3212 */ 3213 public int getImeOptions() { 3214 return mInputContentType != null 3215 ? mInputContentType.imeOptions : EditorInfo.IME_NULL; 3216 } 3217 3218 /** 3219 * Change the custom IME action associated with the text view, which 3220 * will be reported to an IME with {@link EditorInfo#actionLabel} 3221 * and {@link EditorInfo#actionId} when it has focus. 3222 * @see #getImeActionLabel 3223 * @see #getImeActionId 3224 * @see android.view.inputmethod.EditorInfo 3225 * @attr ref android.R.styleable#TextView_imeActionLabel 3226 * @attr ref android.R.styleable#TextView_imeActionId 3227 */ 3228 public void setImeActionLabel(CharSequence label, int actionId) { 3229 if (mInputContentType == null) { 3230 mInputContentType = new InputContentType(); 3231 } 3232 mInputContentType.imeActionLabel = label; 3233 mInputContentType.imeActionId = actionId; 3234 } 3235 3236 /** 3237 * Get the IME action label previous set with {@link #setImeActionLabel}. 3238 * 3239 * @see #setImeActionLabel 3240 * @see android.view.inputmethod.EditorInfo 3241 */ 3242 public CharSequence getImeActionLabel() { 3243 return mInputContentType != null 3244 ? mInputContentType.imeActionLabel : null; 3245 } 3246 3247 /** 3248 * Get the IME action ID previous set with {@link #setImeActionLabel}. 3249 * 3250 * @see #setImeActionLabel 3251 * @see android.view.inputmethod.EditorInfo 3252 */ 3253 public int getImeActionId() { 3254 return mInputContentType != null 3255 ? mInputContentType.imeActionId : 0; 3256 } 3257 3258 /** 3259 * Set a special listener to be called when an action is performed 3260 * on the text view. This will be called when the enter key is pressed, 3261 * or when an action supplied to the IME is selected by the user. Setting 3262 * this means that the normal hard key event will not insert a newline 3263 * into the text view, even if it is multi-line; holding down the ALT 3264 * modifier will, however, allow the user to insert a newline character. 3265 */ 3266 public void setOnEditorActionListener(OnEditorActionListener l) { 3267 if (mInputContentType == null) { 3268 mInputContentType = new InputContentType(); 3269 } 3270 mInputContentType.onEditorActionListener = l; 3271 } 3272 3273 /** 3274 * Called when an attached input method calls 3275 * {@link InputConnection#performEditorAction(int) 3276 * InputConnection.performEditorAction()} 3277 * for this text view. The default implementation will call your action 3278 * listener supplied to {@link #setOnEditorActionListener}, or perform 3279 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 3280 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 3281 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 3282 * EditorInfo.IME_ACTION_DONE}. 3283 * 3284 * <p>For backwards compatibility, if no IME options have been set and the 3285 * text view would not normally advance focus on enter, then 3286 * the NEXT and DONE actions received here will be turned into an enter 3287 * key down/up pair to go through the normal key handling. 3288 * 3289 * @param actionCode The code of the action being performed. 3290 * 3291 * @see #setOnEditorActionListener 3292 */ 3293 public void onEditorAction(int actionCode) { 3294 final InputContentType ict = mInputContentType; 3295 if (ict != null) { 3296 if (ict.onEditorActionListener != null) { 3297 if (ict.onEditorActionListener.onEditorAction(this, 3298 actionCode, null)) { 3299 return; 3300 } 3301 } 3302 3303 // This is the handling for some default action. 3304 // Note that for backwards compatibility we don't do this 3305 // default handling if explicit ime options have not been given, 3306 // instead turning this into the normal enter key codes that an 3307 // app may be expecting. 3308 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 3309 View v = focusSearch(FOCUS_DOWN); 3310 if (v != null) { 3311 if (!v.requestFocus(FOCUS_DOWN)) { 3312 throw new IllegalStateException("focus search returned a view " + 3313 "that wasn't able to take focus!"); 3314 } 3315 } 3316 return; 3317 3318 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 3319 View v = focusSearch(FOCUS_UP); 3320 if (v != null) { 3321 if (!v.requestFocus(FOCUS_UP)) { 3322 throw new IllegalStateException("focus search returned a view " + 3323 "that wasn't able to take focus!"); 3324 } 3325 } 3326 return; 3327 3328 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 3329 InputMethodManager imm = InputMethodManager.peekInstance(); 3330 if (imm != null && imm.isActive(this)) { 3331 imm.hideSoftInputFromWindow(getWindowToken(), 0); 3332 } 3333 return; 3334 } 3335 } 3336 3337 Handler h = getHandler(); 3338 if (h != null) { 3339 long eventTime = SystemClock.uptimeMillis(); 3340 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3341 new KeyEvent(eventTime, eventTime, 3342 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 3343 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3344 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3345 | KeyEvent.FLAG_EDITOR_ACTION))); 3346 h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME, 3347 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 3348 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 3349 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 3350 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 3351 | KeyEvent.FLAG_EDITOR_ACTION))); 3352 } 3353 } 3354 3355 /** 3356 * Set the private content type of the text, which is the 3357 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 3358 * field that will be filled in when creating an input connection. 3359 * 3360 * @see #getPrivateImeOptions() 3361 * @see EditorInfo#privateImeOptions 3362 * @attr ref android.R.styleable#TextView_privateImeOptions 3363 */ 3364 public void setPrivateImeOptions(String type) { 3365 if (mInputContentType == null) mInputContentType = new InputContentType(); 3366 mInputContentType.privateImeOptions = type; 3367 } 3368 3369 /** 3370 * Get the private type of the content. 3371 * 3372 * @see #setPrivateImeOptions(String) 3373 * @see EditorInfo#privateImeOptions 3374 */ 3375 public String getPrivateImeOptions() { 3376 return mInputContentType != null 3377 ? mInputContentType.privateImeOptions : null; 3378 } 3379 3380 /** 3381 * Set the extra input data of the text, which is the 3382 * {@link EditorInfo#extras TextBoxAttribute.extras} 3383 * Bundle that will be filled in when creating an input connection. The 3384 * given integer is the resource ID of an XML resource holding an 3385 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 3386 * 3387 * @see #getInputExtras(boolean) 3388 * @see EditorInfo#extras 3389 * @attr ref android.R.styleable#TextView_editorExtras 3390 */ 3391 public void setInputExtras(int xmlResId) 3392 throws XmlPullParserException, IOException { 3393 XmlResourceParser parser = getResources().getXml(xmlResId); 3394 if (mInputContentType == null) mInputContentType = new InputContentType(); 3395 mInputContentType.extras = new Bundle(); 3396 getResources().parseBundleExtras(parser, mInputContentType.extras); 3397 } 3398 3399 /** 3400 * Retrieve the input extras currently associated with the text view, which 3401 * can be viewed as well as modified. 3402 * 3403 * @param create If true, the extras will be created if they don't already 3404 * exist. Otherwise, null will be returned if none have been created. 3405 * @see #setInputExtras(int) 3406 * @see EditorInfo#extras 3407 * @attr ref android.R.styleable#TextView_editorExtras 3408 */ 3409 public Bundle getInputExtras(boolean create) { 3410 if (mInputContentType == null) { 3411 if (!create) return null; 3412 mInputContentType = new InputContentType(); 3413 } 3414 if (mInputContentType.extras == null) { 3415 if (!create) return null; 3416 mInputContentType.extras = new Bundle(); 3417 } 3418 return mInputContentType.extras; 3419 } 3420 3421 /** 3422 * Returns the error message that was set to be displayed with 3423 * {@link #setError}, or <code>null</code> if no error was set 3424 * or if it the error was cleared by the widget after user input. 3425 */ 3426 public CharSequence getError() { 3427 return mError; 3428 } 3429 3430 /** 3431 * Sets the right-hand compound drawable of the TextView to the "error" 3432 * icon and sets an error message that will be displayed in a popup when 3433 * the TextView has focus. The icon and error message will be reset to 3434 * null when any key events cause changes to the TextView's text. If the 3435 * <code>error</code> is <code>null</code>, the error message and icon 3436 * will be cleared. 3437 */ 3438 @android.view.RemotableViewMethod 3439 public void setError(CharSequence error) { 3440 if (error == null) { 3441 setError(null, null); 3442 } else { 3443 Drawable dr = getContext().getResources(). 3444 getDrawable(com.android.internal.R.drawable.indicator_input_error); 3445 3446 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 3447 setError(error, dr); 3448 } 3449 } 3450 3451 /** 3452 * Sets the right-hand compound drawable of the TextView to the specified 3453 * icon and sets an error message that will be displayed in a popup when 3454 * the TextView has focus. The icon and error message will be reset to 3455 * null when any key events cause changes to the TextView's text. The 3456 * drawable must already have had {@link Drawable#setBounds} set on it. 3457 * If the <code>error</code> is <code>null</code>, the error message will 3458 * be cleared (and you should provide a <code>null</code> icon as well). 3459 */ 3460 public void setError(CharSequence error, Drawable icon) { 3461 error = TextUtils.stringOrSpannedString(error); 3462 3463 mError = error; 3464 mErrorWasChanged = true; 3465 final Drawables dr = mDrawables; 3466 if (dr != null) { 3467 setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, icon, dr.mDrawableBottom); 3468 } else { 3469 setCompoundDrawables(null, null, icon, null); 3470 } 3471 3472 if (error == null) { 3473 if (mPopup != null) { 3474 if (mPopup.isShowing()) { 3475 mPopup.dismiss(); 3476 } 3477 3478 mPopup = null; 3479 } 3480 } else { 3481 if (isFocused()) { 3482 showError(); 3483 } 3484 } 3485 } 3486 3487 private void showError() { 3488 if (getWindowToken() == null) { 3489 mShowErrorAfterAttach = true; 3490 return; 3491 } 3492 3493 if (mPopup == null) { 3494 LayoutInflater inflater = LayoutInflater.from(getContext()); 3495 final TextView err = (TextView) inflater.inflate( 3496 com.android.internal.R.layout.textview_hint, null); 3497 3498 final float scale = getResources().getDisplayMetrics().density; 3499 mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), (int) (50 * scale + 0.5f)); 3500 mPopup.setFocusable(false); 3501 // The user is entering text, so the input method is needed. We 3502 // don't want the popup to be displayed on top of it. 3503 mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED); 3504 } 3505 3506 TextView tv = (TextView) mPopup.getContentView(); 3507 chooseSize(mPopup, mError, tv); 3508 tv.setText(mError); 3509 3510 mPopup.showAsDropDown(this, getErrorX(), getErrorY()); 3511 mPopup.fixDirection(mPopup.isAboveAnchor()); 3512 } 3513 3514 private static class ErrorPopup extends PopupWindow { 3515 private boolean mAbove = false; 3516 private final TextView mView; 3517 private int mPopupInlineErrorBackgroundId = 0; 3518 private int mPopupInlineErrorAboveBackgroundId = 0; 3519 3520 ErrorPopup(TextView v, int width, int height) { 3521 super(v, width, height); 3522 mView = v; 3523 // Make sure the TextView has a background set as it will be used the first time it is 3524 // shown and positionned. Initialized with below background, which should have 3525 // dimensions identical to the above version for this to work (and is more likely). 3526 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3527 com.android.internal.R.styleable.Theme_errorMessageBackground); 3528 mView.setBackgroundResource(mPopupInlineErrorBackgroundId); 3529 } 3530 3531 void fixDirection(boolean above) { 3532 mAbove = above; 3533 3534 if (above) { 3535 mPopupInlineErrorAboveBackgroundId = 3536 getResourceId(mPopupInlineErrorAboveBackgroundId, 3537 com.android.internal.R.styleable.Theme_errorMessageAboveBackground); 3538 } else { 3539 mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId, 3540 com.android.internal.R.styleable.Theme_errorMessageBackground); 3541 } 3542 3543 mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId : 3544 mPopupInlineErrorBackgroundId); 3545 } 3546 3547 private int getResourceId(int currentId, int index) { 3548 if (currentId == 0) { 3549 TypedArray styledAttributes = mView.getContext().obtainStyledAttributes( 3550 R.styleable.Theme); 3551 currentId = styledAttributes.getResourceId(index, 0); 3552 styledAttributes.recycle(); 3553 } 3554 return currentId; 3555 } 3556 3557 @Override 3558 public void update(int x, int y, int w, int h, boolean force) { 3559 super.update(x, y, w, h, force); 3560 3561 boolean above = isAboveAnchor(); 3562 if (above != mAbove) { 3563 fixDirection(above); 3564 } 3565 } 3566 } 3567 3568 /** 3569 * Returns the Y offset to make the pointy top of the error point 3570 * at the middle of the error icon. 3571 */ 3572 private int getErrorX() { 3573 /* 3574 * The "25" is the distance between the point and the right edge 3575 * of the background 3576 */ 3577 final float scale = getResources().getDisplayMetrics().density; 3578 3579 final Drawables dr = mDrawables; 3580 return getWidth() - mPopup.getWidth() - getPaddingRight() - 3581 (dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f); 3582 } 3583 3584 /** 3585 * Returns the Y offset to make the pointy top of the error point 3586 * at the bottom of the error icon. 3587 */ 3588 private int getErrorY() { 3589 /* 3590 * Compound, not extended, because the icon is not clipped 3591 * if the text height is smaller. 3592 */ 3593 final int compoundPaddingTop = getCompoundPaddingTop(); 3594 int vspace = mBottom - mTop - getCompoundPaddingBottom() - compoundPaddingTop; 3595 3596 final Drawables dr = mDrawables; 3597 int icontop = compoundPaddingTop + 3598 (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2; 3599 3600 /* 3601 * The "2" is the distance between the point and the top edge 3602 * of the background. 3603 */ 3604 final float scale = getResources().getDisplayMetrics().density; 3605 return icontop + (dr != null ? dr.mDrawableHeightRight : 0) - getHeight() - 3606 (int) (2 * scale + 0.5f); 3607 } 3608 3609 private void hideError() { 3610 if (mPopup != null) { 3611 if (mPopup.isShowing()) { 3612 mPopup.dismiss(); 3613 } 3614 } 3615 3616 mShowErrorAfterAttach = false; 3617 } 3618 3619 private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) { 3620 int wid = tv.getPaddingLeft() + tv.getPaddingRight(); 3621 int ht = tv.getPaddingTop() + tv.getPaddingBottom(); 3622 3623 /* 3624 * Figure out how big the text would be if we laid it out to the 3625 * full width of this view minus the border. 3626 */ 3627 int cap = getWidth() - wid; 3628 if (cap < 0) { 3629 cap = 200; // We must not be measured yet -- setFrame() will fix it. 3630 } 3631 3632 Layout l = new StaticLayout(text, tv.getPaint(), cap, 3633 Layout.Alignment.ALIGN_NORMAL, 1, 0, true); 3634 float max = 0; 3635 for (int i = 0; i < l.getLineCount(); i++) { 3636 max = Math.max(max, l.getLineWidth(i)); 3637 } 3638 3639 /* 3640 * Now set the popup size to be big enough for the text plus the border. 3641 */ 3642 pop.setWidth(wid + (int) Math.ceil(max)); 3643 pop.setHeight(ht + l.getHeight()); 3644 } 3645 3646 3647 @Override 3648 protected boolean setFrame(int l, int t, int r, int b) { 3649 boolean result = super.setFrame(l, t, r, b); 3650 3651 if (mPopup != null) { 3652 TextView tv = (TextView) mPopup.getContentView(); 3653 chooseSize(mPopup, mError, tv); 3654 mPopup.update(this, getErrorX(), getErrorY(), 3655 mPopup.getWidth(), mPopup.getHeight()); 3656 } 3657 3658 restartMarqueeIfNeeded(); 3659 3660 return result; 3661 } 3662 3663 private void restartMarqueeIfNeeded() { 3664 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 3665 mRestartMarquee = false; 3666 startMarquee(); 3667 } 3668 } 3669 3670 /** 3671 * Sets the list of input filters that will be used if the buffer is 3672 * Editable. Has no effect otherwise. 3673 * 3674 * @attr ref android.R.styleable#TextView_maxLength 3675 */ 3676 public void setFilters(InputFilter[] filters) { 3677 if (filters == null) { 3678 throw new IllegalArgumentException(); 3679 } 3680 3681 mFilters = filters; 3682 3683 if (mText instanceof Editable) { 3684 setFilters((Editable) mText, filters); 3685 } 3686 } 3687 3688 /** 3689 * Sets the list of input filters on the specified Editable, 3690 * and includes mInput in the list if it is an InputFilter. 3691 */ 3692 private void setFilters(Editable e, InputFilter[] filters) { 3693 if (mInput instanceof InputFilter) { 3694 InputFilter[] nf = new InputFilter[filters.length + 1]; 3695 3696 System.arraycopy(filters, 0, nf, 0, filters.length); 3697 nf[filters.length] = (InputFilter) mInput; 3698 3699 e.setFilters(nf); 3700 } else { 3701 e.setFilters(filters); 3702 } 3703 } 3704 3705 /** 3706 * Returns the current list of input filters. 3707 */ 3708 public InputFilter[] getFilters() { 3709 return mFilters; 3710 } 3711 3712 ///////////////////////////////////////////////////////////////////////// 3713 3714 private int getVerticalOffset(boolean forceNormal) { 3715 int voffset = 0; 3716 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3717 3718 Layout l = mLayout; 3719 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3720 l = mHintLayout; 3721 } 3722 3723 if (gravity != Gravity.TOP) { 3724 int boxht; 3725 3726 if (l == mHintLayout) { 3727 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3728 getCompoundPaddingBottom(); 3729 } else { 3730 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3731 getExtendedPaddingBottom(); 3732 } 3733 int textht = l.getHeight(); 3734 3735 if (textht < boxht) { 3736 if (gravity == Gravity.BOTTOM) 3737 voffset = boxht - textht; 3738 else // (gravity == Gravity.CENTER_VERTICAL) 3739 voffset = (boxht - textht) >> 1; 3740 } 3741 } 3742 return voffset; 3743 } 3744 3745 private int getBottomVerticalOffset(boolean forceNormal) { 3746 int voffset = 0; 3747 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 3748 3749 Layout l = mLayout; 3750 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 3751 l = mHintLayout; 3752 } 3753 3754 if (gravity != Gravity.BOTTOM) { 3755 int boxht; 3756 3757 if (l == mHintLayout) { 3758 boxht = getMeasuredHeight() - getCompoundPaddingTop() - 3759 getCompoundPaddingBottom(); 3760 } else { 3761 boxht = getMeasuredHeight() - getExtendedPaddingTop() - 3762 getExtendedPaddingBottom(); 3763 } 3764 int textht = l.getHeight(); 3765 3766 if (textht < boxht) { 3767 if (gravity == Gravity.TOP) 3768 voffset = boxht - textht; 3769 else // (gravity == Gravity.CENTER_VERTICAL) 3770 voffset = (boxht - textht) >> 1; 3771 } 3772 } 3773 return voffset; 3774 } 3775 3776 private void invalidateCursorPath() { 3777 if (mHighlightPathBogus) { 3778 invalidateCursor(); 3779 } else { 3780 final int horizontalPadding = getCompoundPaddingLeft(); 3781 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 3782 3783 if (mCursorCount == 0) { 3784 synchronized (sTempRect) { 3785 /* 3786 * The reason for this concern about the thickness of the 3787 * cursor and doing the floor/ceil on the coordinates is that 3788 * some EditTexts (notably textfields in the Browser) have 3789 * anti-aliased text where not all the characters are 3790 * necessarily at integer-multiple locations. This should 3791 * make sure the entire cursor gets invalidated instead of 3792 * sometimes missing half a pixel. 3793 */ 3794 float thick = FloatMath.ceil(mTextPaint.getStrokeWidth()); 3795 if (thick < 1.0f) { 3796 thick = 1.0f; 3797 } 3798 3799 thick /= 2.0f; 3800 3801 mHighlightPath.computeBounds(sTempRect, false); 3802 3803 invalidate((int) FloatMath.floor(horizontalPadding + sTempRect.left - thick), 3804 (int) FloatMath.floor(verticalPadding + sTempRect.top - thick), 3805 (int) FloatMath.ceil(horizontalPadding + sTempRect.right + thick), 3806 (int) FloatMath.ceil(verticalPadding + sTempRect.bottom + thick)); 3807 } 3808 } else { 3809 for (int i = 0; i < mCursorCount; i++) { 3810 Rect bounds = mCursorDrawable[i].getBounds(); 3811 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 3812 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 3813 } 3814 } 3815 } 3816 } 3817 3818 private void invalidateCursor() { 3819 int where = getSelectionEnd(); 3820 3821 invalidateCursor(where, where, where); 3822 } 3823 3824 private void invalidateCursor(int a, int b, int c) { 3825 if (mLayout == null) { 3826 invalidate(); 3827 } else { 3828 if (a >= 0 || b >= 0 || c >= 0) { 3829 int first = Math.min(Math.min(a, b), c); 3830 int last = Math.max(Math.max(a, b), c); 3831 3832 int line = mLayout.getLineForOffset(first); 3833 int top = mLayout.getLineTop(line); 3834 3835 // This is ridiculous, but the descent from the line above 3836 // can hang down into the line we really want to redraw, 3837 // so we have to invalidate part of the line above to make 3838 // sure everything that needs to be redrawn really is. 3839 // (But not the whole line above, because that would cause 3840 // the same problem with the descenders on the line above it!) 3841 if (line > 0) { 3842 top -= mLayout.getLineDescent(line - 1); 3843 } 3844 3845 int line2; 3846 3847 if (first == last) 3848 line2 = line; 3849 else 3850 line2 = mLayout.getLineForOffset(last); 3851 3852 int bottom = mLayout.getLineTop(line2 + 1); 3853 3854 final int horizontalPadding = getCompoundPaddingLeft(); 3855 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 3856 3857 // If used, the cursor drawables can have an arbitrary dimension that can go beyond 3858 // the invalidated lines specified above. 3859 for (int i = 0; i < mCursorCount; i++) { 3860 Rect bounds = mCursorDrawable[i].getBounds(); 3861 top = Math.min(top, bounds.top); 3862 bottom = Math.max(bottom, bounds.bottom); 3863 // Horizontal bounds are already full width, no need to update 3864 } 3865 3866 invalidate(horizontalPadding + mScrollX, top + verticalPadding, 3867 horizontalPadding + mScrollX + getWidth() - 3868 getCompoundPaddingLeft() - getCompoundPaddingRight(), 3869 bottom + verticalPadding); 3870 } 3871 } 3872 } 3873 3874 private void registerForPreDraw() { 3875 final ViewTreeObserver observer = getViewTreeObserver(); 3876 3877 if (mPreDrawState == PREDRAW_NOT_REGISTERED) { 3878 observer.addOnPreDrawListener(this); 3879 mPreDrawState = PREDRAW_PENDING; 3880 } else if (mPreDrawState == PREDRAW_DONE) { 3881 mPreDrawState = PREDRAW_PENDING; 3882 } 3883 3884 // else state is PREDRAW_PENDING, so keep waiting. 3885 } 3886 3887 /** 3888 * {@inheritDoc} 3889 */ 3890 public boolean onPreDraw() { 3891 if (mPreDrawState != PREDRAW_PENDING) { 3892 return true; 3893 } 3894 3895 if (mLayout == null) { 3896 assumeLayout(); 3897 } 3898 3899 boolean changed = false; 3900 3901 if (mMovement != null) { 3902 /* This code also provides auto-scrolling when a cursor is moved using a 3903 * CursorController (insertion point or selection limits). 3904 * For selection, ensure start or end is visible depending on controller's state. 3905 */ 3906 int curs = getSelectionEnd(); 3907 // Do not create the controller if it is not already created. 3908 if (mSelectionModifierCursorController != null && 3909 mSelectionModifierCursorController.isSelectionStartDragged()) { 3910 curs = getSelectionStart(); 3911 } 3912 3913 /* 3914 * TODO: This should really only keep the end in view if 3915 * it already was before the text changed. I'm not sure 3916 * of a good way to tell from here if it was. 3917 */ 3918 if (curs < 0 && 3919 (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 3920 curs = mText.length(); 3921 } 3922 3923 if (curs >= 0) { 3924 changed = bringPointIntoView(curs); 3925 } 3926 } else { 3927 changed = bringTextIntoView(); 3928 } 3929 3930 // This has to be checked here since: 3931 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 3932 // a screen rotation) since layout is not yet initialized at that point. 3933 if (mCreatedWithASelection) { 3934 startSelectionActionMode(); 3935 mCreatedWithASelection = false; 3936 } 3937 3938 // Phone specific code (there is no ExtractEditText on tablets). 3939 // ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can 3940 // not be set. Do the test here instead. 3941 if (this instanceof ExtractEditText && hasSelection()) { 3942 startSelectionActionMode(); 3943 } 3944 3945 mPreDrawState = PREDRAW_DONE; 3946 return !changed; 3947 } 3948 3949 @Override 3950 protected void onAttachedToWindow() { 3951 super.onAttachedToWindow(); 3952 3953 mTemporaryDetach = false; 3954 3955 if (mShowErrorAfterAttach) { 3956 showError(); 3957 mShowErrorAfterAttach = false; 3958 } 3959 3960 final ViewTreeObserver observer = getViewTreeObserver(); 3961 // No need to create the controller. 3962 // The get method will add the listener on controller creation. 3963 if (mInsertionPointCursorController != null) { 3964 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 3965 } 3966 if (mSelectionModifierCursorController != null) { 3967 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 3968 } 3969 } 3970 3971 @Override 3972 protected void onDetachedFromWindow() { 3973 super.onDetachedFromWindow(); 3974 3975 final ViewTreeObserver observer = getViewTreeObserver(); 3976 if (mPreDrawState != PREDRAW_NOT_REGISTERED) { 3977 observer.removeOnPreDrawListener(this); 3978 mPreDrawState = PREDRAW_NOT_REGISTERED; 3979 } 3980 // No need to create the controller, as getXXController would. 3981 if (mInsertionPointCursorController != null) { 3982 observer.removeOnTouchModeChangeListener(mInsertionPointCursorController); 3983 } 3984 if (mSelectionModifierCursorController != null) { 3985 observer.removeOnTouchModeChangeListener(mSelectionModifierCursorController); 3986 } 3987 3988 if (mError != null) { 3989 hideError(); 3990 } 3991 3992 if (mBlink != null) { 3993 mBlink.removeCallbacks(mBlink); 3994 } 3995 3996 if (mInsertionPointCursorController != null) { 3997 mInsertionPointCursorController.onDetached(); 3998 } 3999 4000 if (mSelectionModifierCursorController != null) { 4001 mSelectionModifierCursorController.onDetached(); 4002 } 4003 4004 hideControllers(); 4005 } 4006 4007 @Override 4008 protected boolean isPaddingOffsetRequired() { 4009 return mShadowRadius != 0 || mDrawables != null; 4010 } 4011 4012 @Override 4013 protected int getLeftPaddingOffset() { 4014 return getCompoundPaddingLeft() - mPaddingLeft + 4015 (int) Math.min(0, mShadowDx - mShadowRadius); 4016 } 4017 4018 @Override 4019 protected int getTopPaddingOffset() { 4020 return (int) Math.min(0, mShadowDy - mShadowRadius); 4021 } 4022 4023 @Override 4024 protected int getBottomPaddingOffset() { 4025 return (int) Math.max(0, mShadowDy + mShadowRadius); 4026 } 4027 4028 @Override 4029 protected int getRightPaddingOffset() { 4030 return -(getCompoundPaddingRight() - mPaddingRight) + 4031 (int) Math.max(0, mShadowDx + mShadowRadius); 4032 } 4033 4034 @Override 4035 protected boolean verifyDrawable(Drawable who) { 4036 final boolean verified = super.verifyDrawable(who); 4037 if (!verified && mDrawables != null) { 4038 return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop || 4039 who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom; 4040 } 4041 return verified; 4042 } 4043 4044 @Override 4045 public void jumpDrawablesToCurrentState() { 4046 super.jumpDrawablesToCurrentState(); 4047 if (mDrawables != null) { 4048 if (mDrawables.mDrawableLeft != null) { 4049 mDrawables.mDrawableLeft.jumpToCurrentState(); 4050 } 4051 if (mDrawables.mDrawableTop != null) { 4052 mDrawables.mDrawableTop.jumpToCurrentState(); 4053 } 4054 if (mDrawables.mDrawableRight != null) { 4055 mDrawables.mDrawableRight.jumpToCurrentState(); 4056 } 4057 if (mDrawables.mDrawableBottom != null) { 4058 mDrawables.mDrawableBottom.jumpToCurrentState(); 4059 } 4060 } 4061 } 4062 4063 @Override 4064 public void invalidateDrawable(Drawable drawable) { 4065 if (verifyDrawable(drawable)) { 4066 final Rect dirty = drawable.getBounds(); 4067 int scrollX = mScrollX; 4068 int scrollY = mScrollY; 4069 4070 // IMPORTANT: The coordinates below are based on the coordinates computed 4071 // for each compound drawable in onDraw(). Make sure to update each section 4072 // accordingly. 4073 final TextView.Drawables drawables = mDrawables; 4074 if (drawables != null) { 4075 if (drawable == drawables.mDrawableLeft) { 4076 final int compoundPaddingTop = getCompoundPaddingTop(); 4077 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4078 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4079 4080 scrollX += mPaddingLeft; 4081 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 4082 } else if (drawable == drawables.mDrawableRight) { 4083 final int compoundPaddingTop = getCompoundPaddingTop(); 4084 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4085 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 4086 4087 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 4088 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 4089 } else if (drawable == drawables.mDrawableTop) { 4090 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4091 final int compoundPaddingRight = getCompoundPaddingRight(); 4092 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4093 4094 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 4095 scrollY += mPaddingTop; 4096 } else if (drawable == drawables.mDrawableBottom) { 4097 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4098 final int compoundPaddingRight = getCompoundPaddingRight(); 4099 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 4100 4101 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 4102 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 4103 } 4104 } 4105 4106 invalidate(dirty.left + scrollX, dirty.top + scrollY, 4107 dirty.right + scrollX, dirty.bottom + scrollY); 4108 } 4109 } 4110 4111 @Override 4112 protected boolean onSetAlpha(int alpha) { 4113 // Alpha is supported if and only if the drawing can be done in one pass. 4114 // TODO text with spans with a background color currently do not respect this alpha. 4115 if (getBackground() == null) { 4116 mCurrentAlpha = alpha; 4117 final Drawables dr = mDrawables; 4118 if (dr != null) { 4119 if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha); 4120 if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha); 4121 if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha); 4122 if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha); 4123 } 4124 return true; 4125 } 4126 4127 mCurrentAlpha = 255; 4128 return false; 4129 } 4130 4131 /** 4132 * When a TextView is used to display a useful piece of information to the user (such as a 4133 * contact's address), it should be made selectable, so that the user can select and copy this 4134 * content. 4135 * 4136 * Use {@link #setTextIsSelectable(boolean)} or the 4137 * {@link android.R.styleable#TextView_textIsSelectable} XML attribute to make this TextView 4138 * selectable (text is not selectable by default). 4139 * 4140 * Note that the content of an EditText is always selectable. 4141 * 4142 * @return True if the text displayed in this TextView can be selected by the user. 4143 * 4144 * @attr ref android.R.styleable#TextView_textIsSelectable 4145 */ 4146 public boolean isTextSelectable() { 4147 return mTextIsSelectable; 4148 } 4149 4150 /** 4151 * Sets whether or not (default) the content of this view is selectable by the user. 4152 * 4153 * Note that this methods affect the {@link #setFocusable(boolean)}, 4154 * {@link #setFocusableInTouchMode(boolean)} {@link #setClickable(boolean)} and 4155 * {@link #setLongClickable(boolean)} states and you may want to restore these if they were 4156 * customized. 4157 * 4158 * See {@link #isTextSelectable} for details. 4159 * 4160 * @param selectable Whether or not the content of this TextView should be selectable. 4161 */ 4162 public void setTextIsSelectable(boolean selectable) { 4163 if (mTextIsSelectable == selectable) return; 4164 4165 mTextIsSelectable = selectable; 4166 4167 setFocusableInTouchMode(selectable); 4168 setFocusable(selectable); 4169 setClickable(selectable); 4170 setLongClickable(selectable); 4171 4172 // mInputType is already EditorInfo.TYPE_NULL and mInput is null; 4173 4174 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 4175 setText(getText(), selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 4176 4177 // Called by setText above, but safer in case of future code changes 4178 prepareCursorControllers(); 4179 } 4180 4181 @Override 4182 protected int[] onCreateDrawableState(int extraSpace) { 4183 final int[] drawableState; 4184 4185 if (mSingleLine) { 4186 drawableState = super.onCreateDrawableState(extraSpace); 4187 } else { 4188 drawableState = super.onCreateDrawableState(extraSpace + 1); 4189 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 4190 } 4191 4192 if (mTextIsSelectable) { 4193 // Disable pressed state, which was introduced when TextView was made clickable. 4194 // Prevents text color change. 4195 // setClickable(false) would have a similar effect, but it also disables focus changes 4196 // and long press actions, which are both needed by text selection. 4197 final int length = drawableState.length; 4198 for (int i = 0; i < length; i++) { 4199 if (drawableState[i] == R.attr.state_pressed) { 4200 final int[] nonPressedState = new int[length - 1]; 4201 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 4202 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 4203 return nonPressedState; 4204 } 4205 } 4206 } 4207 4208 return drawableState; 4209 } 4210 4211 @Override 4212 protected void onDraw(Canvas canvas) { 4213 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return; 4214 4215 restartMarqueeIfNeeded(); 4216 4217 // Draw the background for this view 4218 super.onDraw(canvas); 4219 4220 final int compoundPaddingLeft = getCompoundPaddingLeft(); 4221 final int compoundPaddingTop = getCompoundPaddingTop(); 4222 final int compoundPaddingRight = getCompoundPaddingRight(); 4223 final int compoundPaddingBottom = getCompoundPaddingBottom(); 4224 final int scrollX = mScrollX; 4225 final int scrollY = mScrollY; 4226 final int right = mRight; 4227 final int left = mLeft; 4228 final int bottom = mBottom; 4229 final int top = mTop; 4230 4231 final Drawables dr = mDrawables; 4232 if (dr != null) { 4233 /* 4234 * Compound, not extended, because the icon is not clipped 4235 * if the text height is smaller. 4236 */ 4237 4238 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 4239 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 4240 4241 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4242 // Make sure to update invalidateDrawable() when changing this code. 4243 if (dr.mDrawableLeft != null) { 4244 canvas.save(); 4245 canvas.translate(scrollX + mPaddingLeft, 4246 scrollY + compoundPaddingTop + 4247 (vspace - dr.mDrawableHeightLeft) / 2); 4248 dr.mDrawableLeft.draw(canvas); 4249 canvas.restore(); 4250 } 4251 4252 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4253 // Make sure to update invalidateDrawable() when changing this code. 4254 if (dr.mDrawableRight != null) { 4255 canvas.save(); 4256 canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight, 4257 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 4258 dr.mDrawableRight.draw(canvas); 4259 canvas.restore(); 4260 } 4261 4262 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4263 // Make sure to update invalidateDrawable() when changing this code. 4264 if (dr.mDrawableTop != null) { 4265 canvas.save(); 4266 canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2, 4267 scrollY + mPaddingTop); 4268 dr.mDrawableTop.draw(canvas); 4269 canvas.restore(); 4270 } 4271 4272 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 4273 // Make sure to update invalidateDrawable() when changing this code. 4274 if (dr.mDrawableBottom != null) { 4275 canvas.save(); 4276 canvas.translate(scrollX + compoundPaddingLeft + 4277 (hspace - dr.mDrawableWidthBottom) / 2, 4278 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 4279 dr.mDrawableBottom.draw(canvas); 4280 canvas.restore(); 4281 } 4282 } 4283 4284 if (mPreDrawState == PREDRAW_DONE) { 4285 final ViewTreeObserver observer = getViewTreeObserver(); 4286 observer.removeOnPreDrawListener(this); 4287 mPreDrawState = PREDRAW_NOT_REGISTERED; 4288 } 4289 4290 int color = mCurTextColor; 4291 4292 if (mLayout == null) { 4293 assumeLayout(); 4294 } 4295 4296 Layout layout = mLayout; 4297 int cursorcolor = color; 4298 4299 if (mHint != null && mText.length() == 0) { 4300 if (mHintTextColor != null) { 4301 color = mCurHintTextColor; 4302 } 4303 4304 layout = mHintLayout; 4305 } 4306 4307 mTextPaint.setColor(color); 4308 if (mCurrentAlpha != 255) { 4309 // If set, the alpha will override the color's alpha. Multiply the alphas. 4310 mTextPaint.setAlpha((mCurrentAlpha * Color.alpha(color)) / 255); 4311 } 4312 mTextPaint.drawableState = getDrawableState(); 4313 4314 canvas.save(); 4315 /* Would be faster if we didn't have to do this. Can we chop the 4316 (displayable) text so that we don't need to do this ever? 4317 */ 4318 4319 int extendedPaddingTop = getExtendedPaddingTop(); 4320 int extendedPaddingBottom = getExtendedPaddingBottom(); 4321 4322 float clipLeft = compoundPaddingLeft + scrollX; 4323 float clipTop = extendedPaddingTop + scrollY; 4324 float clipRight = right - left - compoundPaddingRight + scrollX; 4325 float clipBottom = bottom - top - extendedPaddingBottom + scrollY; 4326 4327 if (mShadowRadius != 0) { 4328 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 4329 clipRight += Math.max(0, mShadowDx + mShadowRadius); 4330 4331 clipTop += Math.min(0, mShadowDy - mShadowRadius); 4332 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 4333 } 4334 4335 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 4336 4337 int voffsetText = 0; 4338 int voffsetCursor = 0; 4339 4340 // translate in by our padding 4341 { 4342 /* shortcircuit calling getVerticaOffset() */ 4343 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4344 voffsetText = getVerticalOffset(false); 4345 voffsetCursor = getVerticalOffset(true); 4346 } 4347 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 4348 } 4349 4350 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 4351 if (!mSingleLine && getLineCount() == 1 && canMarquee() && 4352 (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 4353 canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft - 4354 getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f); 4355 } 4356 4357 if (mMarquee != null && mMarquee.isRunning()) { 4358 canvas.translate(-mMarquee.mScroll, 0.0f); 4359 } 4360 } 4361 4362 Path highlight = null; 4363 int selStart = -1, selEnd = -1; 4364 boolean drawCursor = false; 4365 4366 // If there is no movement method, then there can be no selection. 4367 // Check that first and attempt to skip everything having to do with 4368 // the cursor. 4369 // XXX This is not strictly true -- a program could set the 4370 // selection manually if it really wanted to. 4371 if (mMovement != null && (isFocused() || isPressed())) { 4372 selStart = getSelectionStart(); 4373 selEnd = getSelectionEnd(); 4374 4375 if ((isCursorVisible() || mTextIsSelectable) && selStart >= 0 && isEnabled()) { 4376 if (mHighlightPath == null) 4377 mHighlightPath = new Path(); 4378 4379 if (selStart == selEnd) { 4380 if (!mTextIsSelectable && 4381 (SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) { 4382 if (mHighlightPathBogus) { 4383 mHighlightPath.reset(); 4384 mLayout.getCursorPath(selStart, mHighlightPath, mText); 4385 updateCursorsPositions(); 4386 mHighlightPathBogus = false; 4387 } 4388 4389 // XXX should pass to skin instead of drawing directly 4390 mHighlightPaint.setColor(cursorcolor); 4391 if (mCurrentAlpha != 255) { 4392 mHighlightPaint.setAlpha( 4393 (mCurrentAlpha * Color.alpha(cursorcolor)) / 255); 4394 } 4395 mHighlightPaint.setStyle(Paint.Style.STROKE); 4396 highlight = mHighlightPath; 4397 drawCursor = mCursorCount > 0; 4398 } 4399 } else { 4400 if (mHighlightPathBogus) { 4401 mHighlightPath.reset(); 4402 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 4403 mHighlightPathBogus = false; 4404 } 4405 4406 // XXX should pass to skin instead of drawing directly 4407 mHighlightPaint.setColor(mHighlightColor); 4408 if (mCurrentAlpha != 255) { 4409 mHighlightPaint.setAlpha( 4410 (mCurrentAlpha * Color.alpha(mHighlightColor)) / 255); 4411 } 4412 mHighlightPaint.setStyle(Paint.Style.FILL); 4413 4414 highlight = mHighlightPath; 4415 } 4416 } 4417 } 4418 4419 /* Comment out until we decide what to do about animations 4420 boolean isLinearTextOn = false; 4421 if (currentTransformation != null) { 4422 isLinearTextOn = mTextPaint.isLinearTextOn(); 4423 Matrix m = currentTransformation.getMatrix(); 4424 if (!m.isIdentity()) { 4425 // mTextPaint.setLinearTextOn(true); 4426 } 4427 } 4428 */ 4429 4430 final InputMethodState ims = mInputMethodState; 4431 final int cursorOffsetVertical = voffsetCursor - voffsetText; 4432 if (ims != null && ims.mBatchEditNesting == 0) { 4433 InputMethodManager imm = InputMethodManager.peekInstance(); 4434 if (imm != null) { 4435 if (imm.isActive(this)) { 4436 boolean reported = false; 4437 if (ims.mContentChanged || ims.mSelectionModeChanged) { 4438 // We are in extract mode and the content has changed 4439 // in some way... just report complete new text to the 4440 // input method. 4441 reported = reportExtractedText(); 4442 } 4443 if (!reported && highlight != null) { 4444 int candStart = -1; 4445 int candEnd = -1; 4446 if (mText instanceof Spannable) { 4447 Spannable sp = (Spannable)mText; 4448 candStart = EditableInputConnection.getComposingSpanStart(sp); 4449 candEnd = EditableInputConnection.getComposingSpanEnd(sp); 4450 } 4451 imm.updateSelection(this, selStart, selEnd, candStart, candEnd); 4452 } 4453 } 4454 4455 if (imm.isWatchingCursor(this) && highlight != null) { 4456 highlight.computeBounds(ims.mTmpRectF, true); 4457 ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0; 4458 4459 canvas.getMatrix().mapPoints(ims.mTmpOffset); 4460 ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]); 4461 4462 ims.mTmpRectF.offset(0, cursorOffsetVertical); 4463 4464 ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5), 4465 (int)(ims.mTmpRectF.top + 0.5), 4466 (int)(ims.mTmpRectF.right + 0.5), 4467 (int)(ims.mTmpRectF.bottom + 0.5)); 4468 4469 imm.updateCursor(this, 4470 ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top, 4471 ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom); 4472 } 4473 } 4474 } 4475 4476 if (mCorrectionHighlighter != null) { 4477 mCorrectionHighlighter.draw(canvas, cursorOffsetVertical); 4478 } 4479 4480 if (drawCursor) { 4481 drawCursor(canvas, cursorOffsetVertical); 4482 // Rely on the drawable entirely, do not draw the cursor line. 4483 // Has to be done after the IMM related code above which relies on the highlight. 4484 highlight = null; 4485 } 4486 4487 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4488 4489 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 4490 canvas.translate((int) mMarquee.getGhostOffset(), 0.0f); 4491 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 4492 } 4493 4494 /* Comment out until we decide what to do about animations 4495 if (currentTransformation != null) { 4496 mTextPaint.setLinearTextOn(isLinearTextOn); 4497 } 4498 */ 4499 4500 canvas.restore(); 4501 } 4502 4503 private void updateCursorsPositions() { 4504 if (mCursorDrawableRes == 0) { 4505 mCursorCount = 0; 4506 return; 4507 } 4508 4509 final int offset = getSelectionStart(); 4510 final int line = mLayout.getLineForOffset(offset); 4511 final int top = mLayout.getLineTop(line); 4512 final int bottom = mLayout.getLineTop(line + 1); 4513 4514 mCursorCount = mLayout.isLevelBoundary(offset) ? 2 : 1; 4515 4516 int middle = bottom; 4517 if (mCursorCount == 2) { 4518 // Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)} 4519 middle = (top + bottom) >> 1; 4520 } 4521 4522 updateCursorPosition(0, top, middle, mLayout.getPrimaryHorizontal(offset)); 4523 4524 if (mCursorCount == 2) { 4525 updateCursorPosition(1, middle, bottom, mLayout.getSecondaryHorizontal(offset)); 4526 } 4527 } 4528 4529 private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) { 4530 if (mCursorDrawable[cursorIndex] == null) 4531 mCursorDrawable[cursorIndex] = mContext.getResources().getDrawable(mCursorDrawableRes); 4532 4533 if (mTempRect == null) mTempRect = new Rect(); 4534 4535 mCursorDrawable[cursorIndex].getPadding(mTempRect); 4536 final int width = mCursorDrawable[cursorIndex].getIntrinsicWidth(); 4537 horizontal = Math.max(0.5f, horizontal - 0.5f); 4538 final int left = (int) (horizontal) - mTempRect.left; 4539 mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width, 4540 bottom + mTempRect.bottom); 4541 } 4542 4543 private void drawCursor(Canvas canvas, int cursorOffsetVertical) { 4544 final boolean translate = cursorOffsetVertical != 0; 4545 if (translate) canvas.translate(0, cursorOffsetVertical); 4546 for (int i = 0; i < mCursorCount; i++) { 4547 mCursorDrawable[i].draw(canvas); 4548 } 4549 if (translate) canvas.translate(0, -cursorOffsetVertical); 4550 } 4551 4552 /** 4553 * Update the positions of the CursorControllers. Needed by WebTextView, 4554 * which does not draw. 4555 * @hide 4556 */ 4557 protected void updateCursorControllerPositions() { 4558 // TODO remove 4559 } 4560 4561 @Override 4562 public void getFocusedRect(Rect r) { 4563 if (mLayout == null) { 4564 super.getFocusedRect(r); 4565 return; 4566 } 4567 4568 int sel = getSelectionEnd(); 4569 if (sel < 0) { 4570 super.getFocusedRect(r); 4571 return; 4572 } 4573 4574 int line = mLayout.getLineForOffset(sel); 4575 r.top = mLayout.getLineTop(line); 4576 r.bottom = mLayout.getLineBottom(line); 4577 4578 r.left = (int) mLayout.getPrimaryHorizontal(sel); 4579 r.right = r.left + 1; 4580 4581 // Adjust for padding and gravity. 4582 int paddingLeft = getCompoundPaddingLeft(); 4583 int paddingTop = getExtendedPaddingTop(); 4584 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4585 paddingTop += getVerticalOffset(false); 4586 } 4587 r.offset(paddingLeft, paddingTop); 4588 } 4589 4590 /** 4591 * Return the number of lines of text, or 0 if the internal Layout has not 4592 * been built. 4593 */ 4594 public int getLineCount() { 4595 return mLayout != null ? mLayout.getLineCount() : 0; 4596 } 4597 4598 /** 4599 * Return the baseline for the specified line (0...getLineCount() - 1) 4600 * If bounds is not null, return the top, left, right, bottom extents 4601 * of the specified line in it. If the internal Layout has not been built, 4602 * return 0 and set bounds to (0, 0, 0, 0) 4603 * @param line which line to examine (0..getLineCount() - 1) 4604 * @param bounds Optional. If not null, it returns the extent of the line 4605 * @return the Y-coordinate of the baseline 4606 */ 4607 public int getLineBounds(int line, Rect bounds) { 4608 if (mLayout == null) { 4609 if (bounds != null) { 4610 bounds.set(0, 0, 0, 0); 4611 } 4612 return 0; 4613 } 4614 else { 4615 int baseline = mLayout.getLineBounds(line, bounds); 4616 4617 int voffset = getExtendedPaddingTop(); 4618 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4619 voffset += getVerticalOffset(true); 4620 } 4621 if (bounds != null) { 4622 bounds.offset(getCompoundPaddingLeft(), voffset); 4623 } 4624 return baseline + voffset; 4625 } 4626 } 4627 4628 @Override 4629 public int getBaseline() { 4630 if (mLayout == null) { 4631 return super.getBaseline(); 4632 } 4633 4634 int voffset = 0; 4635 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 4636 voffset = getVerticalOffset(true); 4637 } 4638 4639 return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0); 4640 } 4641 4642 @Override 4643 public boolean onKeyDown(int keyCode, KeyEvent event) { 4644 int which = doKeyDown(keyCode, event, null); 4645 if (which == 0) { 4646 // Go through default dispatching. 4647 return super.onKeyDown(keyCode, event); 4648 } 4649 4650 return true; 4651 } 4652 4653 @Override 4654 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 4655 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 4656 4657 int which = doKeyDown(keyCode, down, event); 4658 if (which == 0) { 4659 // Go through default dispatching. 4660 return super.onKeyMultiple(keyCode, repeatCount, event); 4661 } 4662 if (which == -1) { 4663 // Consumed the whole thing. 4664 return true; 4665 } 4666 4667 repeatCount--; 4668 4669 // We are going to dispatch the remaining events to either the input 4670 // or movement method. To do this, we will just send a repeated stream 4671 // of down and up events until we have done the complete repeatCount. 4672 // It would be nice if those interfaces had an onKeyMultiple() method, 4673 // but adding that is a more complicated change. 4674 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 4675 if (which == 1) { 4676 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4677 while (--repeatCount > 0) { 4678 mInput.onKeyDown(this, (Editable)mText, keyCode, down); 4679 mInput.onKeyUp(this, (Editable)mText, keyCode, up); 4680 } 4681 hideErrorIfUnchanged(); 4682 4683 } else if (which == 2) { 4684 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4685 while (--repeatCount > 0) { 4686 mMovement.onKeyDown(this, (Spannable)mText, keyCode, down); 4687 mMovement.onKeyUp(this, (Spannable)mText, keyCode, up); 4688 } 4689 } 4690 4691 return true; 4692 } 4693 4694 /** 4695 * Returns true if pressing ENTER in this field advances focus instead 4696 * of inserting the character. This is true mostly in single-line fields, 4697 * but also in mail addresses and subjects which will display on multiple 4698 * lines but where it doesn't make sense to insert newlines. 4699 */ 4700 private boolean shouldAdvanceFocusOnEnter() { 4701 if (mInput == null) { 4702 return false; 4703 } 4704 4705 if (mSingleLine) { 4706 return true; 4707 } 4708 4709 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4710 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4711 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 4712 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 4713 return true; 4714 } 4715 } 4716 4717 return false; 4718 } 4719 4720 /** 4721 * Returns true if pressing TAB in this field advances focus instead 4722 * of inserting the character. Insert tabs only in multi-line editors. 4723 */ 4724 private boolean shouldAdvanceFocusOnTab() { 4725 if (mInput != null && !mSingleLine) { 4726 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 4727 int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION; 4728 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 4729 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 4730 return false; 4731 } 4732 } 4733 } 4734 return true; 4735 } 4736 4737 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 4738 if (!isEnabled()) { 4739 return 0; 4740 } 4741 4742 switch (keyCode) { 4743 case KeyEvent.KEYCODE_ENTER: 4744 mEnterKeyIsDown = true; 4745 if (event.hasNoModifiers()) { 4746 // When mInputContentType is set, we know that we are 4747 // running in a "modern" cupcake environment, so don't need 4748 // to worry about the application trying to capture 4749 // enter key events. 4750 if (mInputContentType != null) { 4751 // If there is an action listener, given them a 4752 // chance to consume the event. 4753 if (mInputContentType.onEditorActionListener != null && 4754 mInputContentType.onEditorActionListener.onEditorAction( 4755 this, EditorInfo.IME_NULL, event)) { 4756 mInputContentType.enterDown = true; 4757 // We are consuming the enter key for them. 4758 return -1; 4759 } 4760 } 4761 4762 // If our editor should move focus when enter is pressed, or 4763 // this is a generated event from an IME action button, then 4764 // don't let it be inserted into the text. 4765 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 4766 || shouldAdvanceFocusOnEnter()) { 4767 if (mOnClickListener != null) { 4768 return 0; 4769 } 4770 return -1; 4771 } 4772 } 4773 break; 4774 4775 case KeyEvent.KEYCODE_DPAD_CENTER: 4776 mDPadCenterIsDown = true; 4777 if (event.hasNoModifiers()) { 4778 if (shouldAdvanceFocusOnEnter()) { 4779 return 0; 4780 } 4781 } 4782 break; 4783 4784 case KeyEvent.KEYCODE_TAB: 4785 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 4786 if (shouldAdvanceFocusOnTab()) { 4787 return 0; 4788 } 4789 } 4790 break; 4791 4792 // Has to be done on key down (and not on key up) to correctly be intercepted. 4793 case KeyEvent.KEYCODE_BACK: 4794 if (mSelectionActionMode != null) { 4795 stopSelectionActionMode(); 4796 return -1; 4797 } 4798 break; 4799 } 4800 4801 if (mInput != null) { 4802 resetErrorChangedFlag(); 4803 4804 boolean doDown = true; 4805 if (otherEvent != null) { 4806 try { 4807 beginBatchEdit(); 4808 final boolean handled = mInput.onKeyOther(this, (Editable) mText, otherEvent); 4809 hideErrorIfUnchanged(); 4810 doDown = false; 4811 if (handled) { 4812 return -1; 4813 } 4814 } catch (AbstractMethodError e) { 4815 // onKeyOther was added after 1.0, so if it isn't 4816 // implemented we need to try to dispatch as a regular down. 4817 } finally { 4818 endBatchEdit(); 4819 } 4820 } 4821 4822 if (doDown) { 4823 beginBatchEdit(); 4824 final boolean handled = mInput.onKeyDown(this, (Editable) mText, keyCode, event); 4825 endBatchEdit(); 4826 hideErrorIfUnchanged(); 4827 if (handled) return 1; 4828 } 4829 } 4830 4831 // bug 650865: sometimes we get a key event before a layout. 4832 // don't try to move around if we don't know the layout. 4833 4834 if (mMovement != null && mLayout != null) { 4835 boolean doDown = true; 4836 if (otherEvent != null) { 4837 try { 4838 boolean handled = mMovement.onKeyOther(this, (Spannable) mText, 4839 otherEvent); 4840 doDown = false; 4841 if (handled) { 4842 return -1; 4843 } 4844 } catch (AbstractMethodError e) { 4845 // onKeyOther was added after 1.0, so if it isn't 4846 // implemented we need to try to dispatch as a regular down. 4847 } 4848 } 4849 if (doDown) { 4850 if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event)) 4851 return 2; 4852 } 4853 } 4854 4855 return 0; 4856 } 4857 4858 /** 4859 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 4860 * can be recorded. 4861 * @hide 4862 */ 4863 public void resetErrorChangedFlag() { 4864 /* 4865 * Keep track of what the error was before doing the input 4866 * so that if an input filter changed the error, we leave 4867 * that error showing. Otherwise, we take down whatever 4868 * error was showing when the user types something. 4869 */ 4870 mErrorWasChanged = false; 4871 } 4872 4873 /** 4874 * @hide 4875 */ 4876 public void hideErrorIfUnchanged() { 4877 if (mError != null && !mErrorWasChanged) { 4878 setError(null, null); 4879 } 4880 } 4881 4882 @Override 4883 public boolean onKeyUp(int keyCode, KeyEvent event) { 4884 if (!isEnabled()) { 4885 return super.onKeyUp(keyCode, event); 4886 } 4887 4888 switch (keyCode) { 4889 case KeyEvent.KEYCODE_DPAD_CENTER: 4890 mDPadCenterIsDown = false; 4891 if (event.hasNoModifiers()) { 4892 /* 4893 * If there is a click listener, just call through to 4894 * super, which will invoke it. 4895 * 4896 * If there isn't a click listener, try to show the soft 4897 * input method. (It will also 4898 * call performClick(), but that won't do anything in 4899 * this case.) 4900 */ 4901 if (mOnClickListener == null) { 4902 if (mMovement != null && mText instanceof Editable 4903 && mLayout != null && onCheckIsTextEditor()) { 4904 InputMethodManager imm = InputMethodManager.peekInstance(); 4905 if (imm != null) imm.showSoftInput(this, 0); 4906 } 4907 } 4908 } 4909 return super.onKeyUp(keyCode, event); 4910 4911 case KeyEvent.KEYCODE_ENTER: 4912 mEnterKeyIsDown = false; 4913 if (event.hasNoModifiers()) { 4914 if (mInputContentType != null 4915 && mInputContentType.onEditorActionListener != null 4916 && mInputContentType.enterDown) { 4917 mInputContentType.enterDown = false; 4918 if (mInputContentType.onEditorActionListener.onEditorAction( 4919 this, EditorInfo.IME_NULL, event)) { 4920 return true; 4921 } 4922 } 4923 4924 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 4925 || shouldAdvanceFocusOnEnter()) { 4926 /* 4927 * If there is a click listener, just call through to 4928 * super, which will invoke it. 4929 * 4930 * If there isn't a click listener, try to advance focus, 4931 * but still call through to super, which will reset the 4932 * pressed state and longpress state. (It will also 4933 * call performClick(), but that won't do anything in 4934 * this case.) 4935 */ 4936 if (mOnClickListener == null) { 4937 View v = focusSearch(FOCUS_DOWN); 4938 4939 if (v != null) { 4940 if (!v.requestFocus(FOCUS_DOWN)) { 4941 throw new IllegalStateException( 4942 "focus search returned a view " + 4943 "that wasn't able to take focus!"); 4944 } 4945 4946 /* 4947 * Return true because we handled the key; super 4948 * will return false because there was no click 4949 * listener. 4950 */ 4951 super.onKeyUp(keyCode, event); 4952 return true; 4953 } else if ((event.getFlags() 4954 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 4955 // No target for next focus, but make sure the IME 4956 // if this came from it. 4957 InputMethodManager imm = InputMethodManager.peekInstance(); 4958 if (imm != null && imm.isActive(this)) { 4959 imm.hideSoftInputFromWindow(getWindowToken(), 0); 4960 } 4961 } 4962 } 4963 } 4964 return super.onKeyUp(keyCode, event); 4965 } 4966 break; 4967 } 4968 4969 if (mInput != null) 4970 if (mInput.onKeyUp(this, (Editable) mText, keyCode, event)) 4971 return true; 4972 4973 if (mMovement != null && mLayout != null) 4974 if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event)) 4975 return true; 4976 4977 return super.onKeyUp(keyCode, event); 4978 } 4979 4980 @Override public boolean onCheckIsTextEditor() { 4981 return mInputType != EditorInfo.TYPE_NULL; 4982 } 4983 4984 @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4985 if (onCheckIsTextEditor() && isEnabled()) { 4986 if (mInputMethodState == null) { 4987 mInputMethodState = new InputMethodState(); 4988 } 4989 outAttrs.inputType = mInputType; 4990 if (mInputContentType != null) { 4991 outAttrs.imeOptions = mInputContentType.imeOptions; 4992 outAttrs.privateImeOptions = mInputContentType.privateImeOptions; 4993 outAttrs.actionLabel = mInputContentType.imeActionLabel; 4994 outAttrs.actionId = mInputContentType.imeActionId; 4995 outAttrs.extras = mInputContentType.extras; 4996 } else { 4997 outAttrs.imeOptions = EditorInfo.IME_NULL; 4998 } 4999 if (focusSearch(FOCUS_DOWN) != null) { 5000 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 5001 } 5002 if (focusSearch(FOCUS_UP) != null) { 5003 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 5004 } 5005 if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION) 5006 == EditorInfo.IME_ACTION_UNSPECIFIED) { 5007 if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 5008 // An action has not been set, but the enter key will move to 5009 // the next focus, so set the action to that. 5010 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 5011 } else { 5012 // An action has not been set, and there is no focus to move 5013 // to, so let's just supply a "done" action. 5014 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 5015 } 5016 if (!shouldAdvanceFocusOnEnter()) { 5017 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5018 } 5019 } 5020 if (isMultilineInputType(outAttrs.inputType)) { 5021 // Multi-line text editors should always show an enter key. 5022 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 5023 } 5024 outAttrs.hintText = mHint; 5025 if (mText instanceof Editable) { 5026 InputConnection ic = new EditableInputConnection(this); 5027 outAttrs.initialSelStart = getSelectionStart(); 5028 outAttrs.initialSelEnd = getSelectionEnd(); 5029 outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType); 5030 return ic; 5031 } 5032 } 5033 return null; 5034 } 5035 5036 /** 5037 * If this TextView contains editable content, extract a portion of it 5038 * based on the information in <var>request</var> in to <var>outText</var>. 5039 * @return Returns true if the text was successfully extracted, else false. 5040 */ 5041 public boolean extractText(ExtractedTextRequest request, 5042 ExtractedText outText) { 5043 return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN, 5044 EXTRACT_UNKNOWN, outText); 5045 } 5046 5047 static final int EXTRACT_NOTHING = -2; 5048 static final int EXTRACT_UNKNOWN = -1; 5049 5050 boolean extractTextInternal(ExtractedTextRequest request, 5051 int partialStartOffset, int partialEndOffset, int delta, 5052 ExtractedText outText) { 5053 final CharSequence content = mText; 5054 if (content != null) { 5055 if (partialStartOffset != EXTRACT_NOTHING) { 5056 final int N = content.length(); 5057 if (partialStartOffset < 0) { 5058 outText.partialStartOffset = outText.partialEndOffset = -1; 5059 partialStartOffset = 0; 5060 partialEndOffset = N; 5061 } else { 5062 // Now use the delta to determine the actual amount of text 5063 // we need. 5064 partialEndOffset += delta; 5065 // Adjust offsets to ensure we contain full spans. 5066 if (content instanceof Spanned) { 5067 Spanned spanned = (Spanned)content; 5068 Object[] spans = spanned.getSpans(partialStartOffset, 5069 partialEndOffset, ParcelableSpan.class); 5070 int i = spans.length; 5071 while (i > 0) { 5072 i--; 5073 int j = spanned.getSpanStart(spans[i]); 5074 if (j < partialStartOffset) partialStartOffset = j; 5075 j = spanned.getSpanEnd(spans[i]); 5076 if (j > partialEndOffset) partialEndOffset = j; 5077 } 5078 } 5079 outText.partialStartOffset = partialStartOffset; 5080 outText.partialEndOffset = partialEndOffset - delta; 5081 5082 if (partialStartOffset > N) { 5083 partialStartOffset = N; 5084 } else if (partialStartOffset < 0) { 5085 partialStartOffset = 0; 5086 } 5087 if (partialEndOffset > N) { 5088 partialEndOffset = N; 5089 } else if (partialEndOffset < 0) { 5090 partialEndOffset = 0; 5091 } 5092 } 5093 if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) { 5094 outText.text = content.subSequence(partialStartOffset, 5095 partialEndOffset); 5096 } else { 5097 outText.text = TextUtils.substring(content, partialStartOffset, 5098 partialEndOffset); 5099 } 5100 } else { 5101 outText.partialStartOffset = 0; 5102 outText.partialEndOffset = 0; 5103 outText.text = ""; 5104 } 5105 outText.flags = 0; 5106 if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) { 5107 outText.flags |= ExtractedText.FLAG_SELECTING; 5108 } 5109 if (mSingleLine) { 5110 outText.flags |= ExtractedText.FLAG_SINGLE_LINE; 5111 } 5112 outText.startOffset = 0; 5113 outText.selectionStart = getSelectionStart(); 5114 outText.selectionEnd = getSelectionEnd(); 5115 return true; 5116 } 5117 return false; 5118 } 5119 5120 boolean reportExtractedText() { 5121 final InputMethodState ims = mInputMethodState; 5122 if (ims != null) { 5123 final boolean contentChanged = ims.mContentChanged; 5124 if (contentChanged || ims.mSelectionModeChanged) { 5125 ims.mContentChanged = false; 5126 ims.mSelectionModeChanged = false; 5127 final ExtractedTextRequest req = mInputMethodState.mExtracting; 5128 if (req != null) { 5129 InputMethodManager imm = InputMethodManager.peekInstance(); 5130 if (imm != null) { 5131 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start=" 5132 + ims.mChangedStart + " end=" + ims.mChangedEnd 5133 + " delta=" + ims.mChangedDelta); 5134 if (ims.mChangedStart < 0 && !contentChanged) { 5135 ims.mChangedStart = EXTRACT_NOTHING; 5136 } 5137 if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd, 5138 ims.mChangedDelta, ims.mTmpExtracted)) { 5139 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start=" 5140 + ims.mTmpExtracted.partialStartOffset 5141 + " end=" + ims.mTmpExtracted.partialEndOffset 5142 + ": " + ims.mTmpExtracted.text); 5143 imm.updateExtractedText(this, req.token, 5144 mInputMethodState.mTmpExtracted); 5145 ims.mChangedStart = EXTRACT_UNKNOWN; 5146 ims.mChangedEnd = EXTRACT_UNKNOWN; 5147 ims.mChangedDelta = 0; 5148 ims.mContentChanged = false; 5149 return true; 5150 } 5151 } 5152 } 5153 } 5154 } 5155 return false; 5156 } 5157 5158 /** 5159 * This is used to remove all style-impacting spans from text before new 5160 * extracted text is being replaced into it, so that we don't have any 5161 * lingering spans applied during the replace. 5162 */ 5163 static void removeParcelableSpans(Spannable spannable, int start, int end) { 5164 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 5165 int i = spans.length; 5166 while (i > 0) { 5167 i--; 5168 spannable.removeSpan(spans[i]); 5169 } 5170 } 5171 5172 /** 5173 * Apply to this text view the given extracted text, as previously 5174 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 5175 */ 5176 public void setExtractedText(ExtractedText text) { 5177 Editable content = getEditableText(); 5178 if (text.text != null) { 5179 if (content == null) { 5180 setText(text.text, TextView.BufferType.EDITABLE); 5181 } else if (text.partialStartOffset < 0) { 5182 removeParcelableSpans(content, 0, content.length()); 5183 content.replace(0, content.length(), text.text); 5184 } else { 5185 final int N = content.length(); 5186 int start = text.partialStartOffset; 5187 if (start > N) start = N; 5188 int end = text.partialEndOffset; 5189 if (end > N) end = N; 5190 removeParcelableSpans(content, start, end); 5191 content.replace(start, end, text.text); 5192 } 5193 } 5194 5195 // Now set the selection position... make sure it is in range, to 5196 // avoid crashes. If this is a partial update, it is possible that 5197 // the underlying text may have changed, causing us problems here. 5198 // Also we just don't want to trust clients to do the right thing. 5199 Spannable sp = (Spannable)getText(); 5200 final int N = sp.length(); 5201 int start = text.selectionStart; 5202 if (start < 0) start = 0; 5203 else if (start > N) start = N; 5204 int end = text.selectionEnd; 5205 if (end < 0) end = 0; 5206 else if (end > N) end = N; 5207 Selection.setSelection(sp, start, end); 5208 5209 // Finally, update the selection mode. 5210 if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) { 5211 MetaKeyKeyListener.startSelecting(this, sp); 5212 } else { 5213 MetaKeyKeyListener.stopSelecting(this, sp); 5214 } 5215 } 5216 5217 /** 5218 * @hide 5219 */ 5220 public void setExtracting(ExtractedTextRequest req) { 5221 if (mInputMethodState != null) { 5222 mInputMethodState.mExtracting = req; 5223 } 5224 // This stops a possible text selection mode. Maybe not intended. 5225 hideControllers(); 5226 } 5227 5228 /** 5229 * Called by the framework in response to a text completion from 5230 * the current input method, provided by it calling 5231 * {@link InputConnection#commitCompletion 5232 * InputConnection.commitCompletion()}. The default implementation does 5233 * nothing; text views that are supporting auto-completion should override 5234 * this to do their desired behavior. 5235 * 5236 * @param text The auto complete text the user has selected. 5237 */ 5238 public void onCommitCompletion(CompletionInfo text) { 5239 } 5240 5241 /** 5242 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 5243 * a dictionnary) from the current input method, provided by it calling 5244 * {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default 5245 * implementation flashes the background of the corrected word to provide feedback to the user. 5246 * 5247 * @param info The auto correct info about the text that was corrected. 5248 */ 5249 public void onCommitCorrection(CorrectionInfo info) { 5250 if (mCorrectionHighlighter == null) { 5251 mCorrectionHighlighter = new CorrectionHighlighter(); 5252 } else { 5253 mCorrectionHighlighter.invalidate(false); 5254 } 5255 5256 mCorrectionHighlighter.highlight(info); 5257 } 5258 5259 private class CorrectionHighlighter { 5260 private final Path mPath = new Path(); 5261 private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 5262 private int mStart, mEnd; 5263 private long mFadingStartTime; 5264 private final static int FADE_OUT_DURATION = 400; 5265 5266 public CorrectionHighlighter() { 5267 mPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale); 5268 mPaint.setStyle(Paint.Style.FILL); 5269 } 5270 5271 public void highlight(CorrectionInfo info) { 5272 mStart = info.getOffset(); 5273 mEnd = mStart + info.getNewText().length(); 5274 mFadingStartTime = SystemClock.uptimeMillis(); 5275 5276 if (mStart < 0 || mEnd < 0) { 5277 stopAnimation(); 5278 } 5279 } 5280 5281 public void draw(Canvas canvas, int cursorOffsetVertical) { 5282 if (updatePath() && updatePaint()) { 5283 if (cursorOffsetVertical != 0) { 5284 canvas.translate(0, cursorOffsetVertical); 5285 } 5286 5287 canvas.drawPath(mPath, mPaint); 5288 5289 if (cursorOffsetVertical != 0) { 5290 canvas.translate(0, -cursorOffsetVertical); 5291 } 5292 invalidate(true); 5293 } else { 5294 stopAnimation(); 5295 invalidate(false); 5296 } 5297 } 5298 5299 private boolean updatePaint() { 5300 final long duration = SystemClock.uptimeMillis() - mFadingStartTime; 5301 if (duration > FADE_OUT_DURATION) return false; 5302 5303 final float coef = 1.0f - (float) duration / FADE_OUT_DURATION; 5304 final int highlightColorAlpha = Color.alpha(mHighlightColor); 5305 final int color = (mHighlightColor & 0x00FFFFFF) + 5306 ((int) (highlightColorAlpha * coef) << 24); 5307 mPaint.setColor(color); 5308 return true; 5309 } 5310 5311 private boolean updatePath() { 5312 final Layout layout = TextView.this.mLayout; 5313 if (layout == null) return false; 5314 5315 // Update in case text is edited while the animation is run 5316 final int length = mText.length(); 5317 int start = Math.min(length, mStart); 5318 int end = Math.min(length, mEnd); 5319 5320 mPath.reset(); 5321 TextView.this.mLayout.getSelectionPath(start, end, mPath); 5322 return true; 5323 } 5324 5325 private void invalidate(boolean delayed) { 5326 if (TextView.this.mLayout == null) return; 5327 5328 synchronized (sTempRect) { 5329 mPath.computeBounds(sTempRect, false); 5330 5331 int left = getCompoundPaddingLeft(); 5332 int top = getExtendedPaddingTop() + getVerticalOffset(true); 5333 5334 if (delayed) { 5335 TextView.this.postInvalidateDelayed(16, // 60 Hz update 5336 left + (int) sTempRect.left, top + (int) sTempRect.top, 5337 left + (int) sTempRect.right, top + (int) sTempRect.bottom); 5338 } else { 5339 TextView.this.postInvalidate((int) sTempRect.left, (int) sTempRect.top, 5340 (int) sTempRect.right, (int) sTempRect.bottom); 5341 } 5342 } 5343 } 5344 5345 private void stopAnimation() { 5346 TextView.this.mCorrectionHighlighter = null; 5347 } 5348 } 5349 5350 public void beginBatchEdit() { 5351 mInBatchEditControllers = true; 5352 final InputMethodState ims = mInputMethodState; 5353 if (ims != null) { 5354 int nesting = ++ims.mBatchEditNesting; 5355 if (nesting == 1) { 5356 ims.mCursorChanged = false; 5357 ims.mChangedDelta = 0; 5358 if (ims.mContentChanged) { 5359 // We already have a pending change from somewhere else, 5360 // so turn this into a full update. 5361 ims.mChangedStart = 0; 5362 ims.mChangedEnd = mText.length(); 5363 } else { 5364 ims.mChangedStart = EXTRACT_UNKNOWN; 5365 ims.mChangedEnd = EXTRACT_UNKNOWN; 5366 ims.mContentChanged = false; 5367 } 5368 onBeginBatchEdit(); 5369 } 5370 } 5371 } 5372 5373 public void endBatchEdit() { 5374 mInBatchEditControllers = false; 5375 final InputMethodState ims = mInputMethodState; 5376 if (ims != null) { 5377 int nesting = --ims.mBatchEditNesting; 5378 if (nesting == 0) { 5379 finishBatchEdit(ims); 5380 } 5381 } 5382 } 5383 5384 void ensureEndedBatchEdit() { 5385 final InputMethodState ims = mInputMethodState; 5386 if (ims != null && ims.mBatchEditNesting != 0) { 5387 ims.mBatchEditNesting = 0; 5388 finishBatchEdit(ims); 5389 } 5390 } 5391 5392 void finishBatchEdit(final InputMethodState ims) { 5393 onEndBatchEdit(); 5394 5395 if (ims.mContentChanged || ims.mSelectionModeChanged) { 5396 updateAfterEdit(); 5397 reportExtractedText(); 5398 } else if (ims.mCursorChanged) { 5399 // Cheezy way to get us to report the current cursor location. 5400 invalidateCursor(); 5401 } 5402 } 5403 5404 void updateAfterEdit() { 5405 invalidate(); 5406 int curs = getSelectionStart(); 5407 5408 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 5409 registerForPreDraw(); 5410 } 5411 5412 if (curs >= 0) { 5413 mHighlightPathBogus = true; 5414 makeBlink(); 5415 } 5416 5417 checkForResize(); 5418 } 5419 5420 /** 5421 * Called by the framework in response to a request to begin a batch 5422 * of edit operations through a call to link {@link #beginBatchEdit()}. 5423 */ 5424 public void onBeginBatchEdit() { 5425 } 5426 5427 /** 5428 * Called by the framework in response to a request to end a batch 5429 * of edit operations through a call to link {@link #endBatchEdit}. 5430 */ 5431 public void onEndBatchEdit() { 5432 } 5433 5434 /** 5435 * Called by the framework in response to a private command from the 5436 * current method, provided by it calling 5437 * {@link InputConnection#performPrivateCommand 5438 * InputConnection.performPrivateCommand()}. 5439 * 5440 * @param action The action name of the command. 5441 * @param data Any additional data for the command. This may be null. 5442 * @return Return true if you handled the command, else false. 5443 */ 5444 public boolean onPrivateIMECommand(String action, Bundle data) { 5445 return false; 5446 } 5447 5448 private void nullLayouts() { 5449 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 5450 mSavedLayout = (BoringLayout) mLayout; 5451 } 5452 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 5453 mSavedHintLayout = (BoringLayout) mHintLayout; 5454 } 5455 5456 mLayout = mHintLayout = null; 5457 5458 // Since it depends on the value of mLayout 5459 prepareCursorControllers(); 5460 } 5461 5462 /** 5463 * Make a new Layout based on the already-measured size of the view, 5464 * on the assumption that it was measured correctly at some point. 5465 */ 5466 private void assumeLayout() { 5467 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5468 5469 if (width < 1) { 5470 width = 0; 5471 } 5472 5473 int physicalWidth = width; 5474 5475 if (mHorizontallyScrolling) { 5476 width = VERY_WIDE; 5477 } 5478 5479 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 5480 physicalWidth, false); 5481 } 5482 5483 /** 5484 * The width passed in is now the desired layout width, 5485 * not the full view width with padding. 5486 * {@hide} 5487 */ 5488 protected void makeNewLayout(int w, int hintWidth, 5489 BoringLayout.Metrics boring, 5490 BoringLayout.Metrics hintBoring, 5491 int ellipsisWidth, boolean bringIntoView) { 5492 stopMarquee(); 5493 5494 mHighlightPathBogus = true; 5495 5496 if (w < 0) { 5497 w = 0; 5498 } 5499 if (hintWidth < 0) { 5500 hintWidth = 0; 5501 } 5502 5503 Layout.Alignment alignment; 5504 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 5505 case Gravity.CENTER_HORIZONTAL: 5506 alignment = Layout.Alignment.ALIGN_CENTER; 5507 break; 5508 5509 case Gravity.RIGHT: 5510 // Note, Layout resolves ALIGN_OPPOSITE to left or 5511 // right based on the paragraph direction. 5512 alignment = Layout.Alignment.ALIGN_OPPOSITE; 5513 break; 5514 5515 default: 5516 alignment = Layout.Alignment.ALIGN_NORMAL; 5517 } 5518 5519 boolean shouldEllipsize = mEllipsize != null && mInput == null; 5520 5521 if (mText instanceof Spannable) { 5522 mLayout = new DynamicLayout(mText, mTransformed, mTextPaint, w, 5523 alignment, mSpacingMult, 5524 mSpacingAdd, mIncludePad, mInput == null ? mEllipsize : null, 5525 ellipsisWidth); 5526 } else { 5527 if (boring == UNKNOWN_BORING) { 5528 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mBoring); 5529 if (boring != null) { 5530 mBoring = boring; 5531 } 5532 } 5533 5534 if (boring != null) { 5535 if (boring.width <= w && 5536 (mEllipsize == null || boring.width <= ellipsisWidth)) { 5537 if (mSavedLayout != null) { 5538 mLayout = mSavedLayout. 5539 replaceOrMake(mTransformed, mTextPaint, 5540 w, alignment, mSpacingMult, mSpacingAdd, 5541 boring, mIncludePad); 5542 } else { 5543 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5544 w, alignment, mSpacingMult, mSpacingAdd, 5545 boring, mIncludePad); 5546 } 5547 5548 mSavedLayout = (BoringLayout) mLayout; 5549 } else if (shouldEllipsize && boring.width <= w) { 5550 if (mSavedLayout != null) { 5551 mLayout = mSavedLayout. 5552 replaceOrMake(mTransformed, mTextPaint, 5553 w, alignment, mSpacingMult, mSpacingAdd, 5554 boring, mIncludePad, mEllipsize, 5555 ellipsisWidth); 5556 } else { 5557 mLayout = BoringLayout.make(mTransformed, mTextPaint, 5558 w, alignment, mSpacingMult, mSpacingAdd, 5559 boring, mIncludePad, mEllipsize, 5560 ellipsisWidth); 5561 } 5562 } else if (shouldEllipsize) { 5563 mLayout = new StaticLayout(mTransformed, 5564 0, mTransformed.length(), 5565 mTextPaint, w, alignment, mSpacingMult, 5566 mSpacingAdd, mIncludePad, mEllipsize, 5567 ellipsisWidth); 5568 } else { 5569 mLayout = new StaticLayout(mTransformed, mTextPaint, 5570 w, alignment, mSpacingMult, mSpacingAdd, 5571 mIncludePad); 5572 } 5573 } else if (shouldEllipsize) { 5574 mLayout = new StaticLayout(mTransformed, 5575 0, mTransformed.length(), 5576 mTextPaint, w, alignment, mSpacingMult, 5577 mSpacingAdd, mIncludePad, mEllipsize, 5578 ellipsisWidth); 5579 } else { 5580 mLayout = new StaticLayout(mTransformed, mTextPaint, 5581 w, alignment, mSpacingMult, mSpacingAdd, 5582 mIncludePad); 5583 } 5584 } 5585 5586 shouldEllipsize = mEllipsize != null; 5587 mHintLayout = null; 5588 5589 if (mHint != null) { 5590 if (shouldEllipsize) hintWidth = w; 5591 5592 if (hintBoring == UNKNOWN_BORING) { 5593 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, 5594 mHintBoring); 5595 if (hintBoring != null) { 5596 mHintBoring = hintBoring; 5597 } 5598 } 5599 5600 if (hintBoring != null) { 5601 if (hintBoring.width <= hintWidth && 5602 (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 5603 if (mSavedHintLayout != null) { 5604 mHintLayout = mSavedHintLayout. 5605 replaceOrMake(mHint, mTextPaint, 5606 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5607 hintBoring, mIncludePad); 5608 } else { 5609 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5610 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5611 hintBoring, mIncludePad); 5612 } 5613 5614 mSavedHintLayout = (BoringLayout) mHintLayout; 5615 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 5616 if (mSavedHintLayout != null) { 5617 mHintLayout = mSavedHintLayout. 5618 replaceOrMake(mHint, mTextPaint, 5619 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5620 hintBoring, mIncludePad, mEllipsize, 5621 ellipsisWidth); 5622 } else { 5623 mHintLayout = BoringLayout.make(mHint, mTextPaint, 5624 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5625 hintBoring, mIncludePad, mEllipsize, 5626 ellipsisWidth); 5627 } 5628 } else if (shouldEllipsize) { 5629 mHintLayout = new StaticLayout(mHint, 5630 0, mHint.length(), 5631 mTextPaint, hintWidth, alignment, mSpacingMult, 5632 mSpacingAdd, mIncludePad, mEllipsize, 5633 ellipsisWidth); 5634 } else { 5635 mHintLayout = new StaticLayout(mHint, mTextPaint, 5636 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5637 mIncludePad); 5638 } 5639 } else if (shouldEllipsize) { 5640 mHintLayout = new StaticLayout(mHint, 5641 0, mHint.length(), 5642 mTextPaint, hintWidth, alignment, mSpacingMult, 5643 mSpacingAdd, mIncludePad, mEllipsize, 5644 ellipsisWidth); 5645 } else { 5646 mHintLayout = new StaticLayout(mHint, mTextPaint, 5647 hintWidth, alignment, mSpacingMult, mSpacingAdd, 5648 mIncludePad); 5649 } 5650 } 5651 5652 if (bringIntoView) { 5653 registerForPreDraw(); 5654 } 5655 5656 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 5657 if (!compressText(ellipsisWidth)) { 5658 final int height = mLayoutParams.height; 5659 // If the size of the view does not depend on the size of the text, try to 5660 // start the marquee immediately 5661 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 5662 startMarquee(); 5663 } else { 5664 // Defer the start of the marquee until we know our width (see setFrame()) 5665 mRestartMarquee = true; 5666 } 5667 } 5668 } 5669 5670 // CursorControllers need a non-null mLayout 5671 prepareCursorControllers(); 5672 } 5673 5674 private boolean compressText(float width) { 5675 if (isHardwareAccelerated()) return false; 5676 5677 // Only compress the text if it hasn't been compressed by the previous pass 5678 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX && 5679 mTextPaint.getTextScaleX() == 1.0f) { 5680 final float textWidth = mLayout.getLineWidth(0); 5681 final float overflow = (textWidth + 1.0f - width) / width; 5682 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 5683 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 5684 post(new Runnable() { 5685 public void run() { 5686 requestLayout(); 5687 } 5688 }); 5689 return true; 5690 } 5691 } 5692 5693 return false; 5694 } 5695 5696 private static int desired(Layout layout) { 5697 int n = layout.getLineCount(); 5698 CharSequence text = layout.getText(); 5699 float max = 0; 5700 5701 // if any line was wrapped, we can't use it. 5702 // but it's ok for the last line not to have a newline 5703 5704 for (int i = 0; i < n - 1; i++) { 5705 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') 5706 return -1; 5707 } 5708 5709 for (int i = 0; i < n; i++) { 5710 max = Math.max(max, layout.getLineWidth(i)); 5711 } 5712 5713 return (int) FloatMath.ceil(max); 5714 } 5715 5716 /** 5717 * Set whether the TextView includes extra top and bottom padding to make 5718 * room for accents that go above the normal ascent and descent. 5719 * The default is true. 5720 * 5721 * @attr ref android.R.styleable#TextView_includeFontPadding 5722 */ 5723 public void setIncludeFontPadding(boolean includepad) { 5724 mIncludePad = includepad; 5725 5726 if (mLayout != null) { 5727 nullLayouts(); 5728 requestLayout(); 5729 invalidate(); 5730 } 5731 } 5732 5733 private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 5734 5735 @Override 5736 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 5737 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 5738 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 5739 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 5740 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 5741 5742 int width; 5743 int height; 5744 5745 BoringLayout.Metrics boring = UNKNOWN_BORING; 5746 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 5747 5748 int des = -1; 5749 boolean fromexisting = false; 5750 5751 if (widthMode == MeasureSpec.EXACTLY) { 5752 // Parent has told us how big to be. So be it. 5753 width = widthSize; 5754 } else { 5755 if (mLayout != null && mEllipsize == null) { 5756 des = desired(mLayout); 5757 } 5758 5759 if (des < 0) { 5760 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mBoring); 5761 if (boring != null) { 5762 mBoring = boring; 5763 } 5764 } else { 5765 fromexisting = true; 5766 } 5767 5768 if (boring == null || boring == UNKNOWN_BORING) { 5769 if (des < 0) { 5770 des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint)); 5771 } 5772 5773 width = des; 5774 } else { 5775 width = boring.width; 5776 } 5777 5778 final Drawables dr = mDrawables; 5779 if (dr != null) { 5780 width = Math.max(width, dr.mDrawableWidthTop); 5781 width = Math.max(width, dr.mDrawableWidthBottom); 5782 } 5783 5784 if (mHint != null) { 5785 int hintDes = -1; 5786 int hintWidth; 5787 5788 if (mHintLayout != null && mEllipsize == null) { 5789 hintDes = desired(mHintLayout); 5790 } 5791 5792 if (hintDes < 0) { 5793 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring); 5794 if (hintBoring != null) { 5795 mHintBoring = hintBoring; 5796 } 5797 } 5798 5799 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 5800 if (hintDes < 0) { 5801 hintDes = (int) FloatMath.ceil( 5802 Layout.getDesiredWidth(mHint, mTextPaint)); 5803 } 5804 5805 hintWidth = hintDes; 5806 } else { 5807 hintWidth = hintBoring.width; 5808 } 5809 5810 if (hintWidth > width) { 5811 width = hintWidth; 5812 } 5813 } 5814 5815 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 5816 5817 if (mMaxWidthMode == EMS) { 5818 width = Math.min(width, mMaxWidth * getLineHeight()); 5819 } else { 5820 width = Math.min(width, mMaxWidth); 5821 } 5822 5823 if (mMinWidthMode == EMS) { 5824 width = Math.max(width, mMinWidth * getLineHeight()); 5825 } else { 5826 width = Math.max(width, mMinWidth); 5827 } 5828 5829 // Check against our minimum width 5830 width = Math.max(width, getSuggestedMinimumWidth()); 5831 5832 if (widthMode == MeasureSpec.AT_MOST) { 5833 width = Math.min(widthSize, width); 5834 } 5835 } 5836 5837 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 5838 int unpaddedWidth = want; 5839 5840 if (mHorizontallyScrolling) want = VERY_WIDE; 5841 5842 int hintWant = want; 5843 int hintWidth = mHintLayout == null ? hintWant : mHintLayout.getWidth(); 5844 5845 if (mLayout == null) { 5846 makeNewLayout(want, hintWant, boring, hintBoring, 5847 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5848 } else if ((mLayout.getWidth() != want) || (hintWidth != hintWant) || 5849 (mLayout.getEllipsizedWidth() != 5850 width - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 5851 if (mHint == null && mEllipsize == null && 5852 want > mLayout.getWidth() && 5853 (mLayout instanceof BoringLayout || 5854 (fromexisting && des >= 0 && des <= want))) { 5855 mLayout.increaseWidthTo(want); 5856 } else { 5857 makeNewLayout(want, hintWant, boring, hintBoring, 5858 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 5859 } 5860 } else { 5861 // Width has not changed. 5862 } 5863 5864 if (heightMode == MeasureSpec.EXACTLY) { 5865 // Parent has told us how big to be. So be it. 5866 height = heightSize; 5867 mDesiredHeightAtMeasure = -1; 5868 } else { 5869 int desired = getDesiredHeight(); 5870 5871 height = desired; 5872 mDesiredHeightAtMeasure = desired; 5873 5874 if (heightMode == MeasureSpec.AT_MOST) { 5875 height = Math.min(desired, heightSize); 5876 } 5877 } 5878 5879 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 5880 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 5881 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 5882 } 5883 5884 /* 5885 * We didn't let makeNewLayout() register to bring the cursor into view, 5886 * so do it here if there is any possibility that it is needed. 5887 */ 5888 if (mMovement != null || 5889 mLayout.getWidth() > unpaddedWidth || 5890 mLayout.getHeight() > unpaddedHeight) { 5891 registerForPreDraw(); 5892 } else { 5893 scrollTo(0, 0); 5894 } 5895 5896 setMeasuredDimension(width, height); 5897 } 5898 5899 private int getDesiredHeight() { 5900 return Math.max( 5901 getDesiredHeight(mLayout, true), 5902 getDesiredHeight(mHintLayout, mEllipsize != null)); 5903 } 5904 5905 private int getDesiredHeight(Layout layout, boolean cap) { 5906 if (layout == null) { 5907 return 0; 5908 } 5909 5910 int linecount = layout.getLineCount(); 5911 int pad = getCompoundPaddingTop() + getCompoundPaddingBottom(); 5912 int desired = layout.getLineTop(linecount); 5913 5914 final Drawables dr = mDrawables; 5915 if (dr != null) { 5916 desired = Math.max(desired, dr.mDrawableHeightLeft); 5917 desired = Math.max(desired, dr.mDrawableHeightRight); 5918 } 5919 5920 desired += pad; 5921 layout.setMaximumVisibleLineCount(0); 5922 5923 if (mMaxMode == LINES) { 5924 /* 5925 * Don't cap the hint to a certain number of lines. 5926 * (Do cap it, though, if we have a maximum pixel height.) 5927 */ 5928 if (cap) { 5929 if (linecount > mMaximum) { 5930 layout.setMaximumVisibleLineCount(mMaximum); 5931 desired = layout.getLineTop(mMaximum); 5932 5933 if (dr != null) { 5934 desired = Math.max(desired, dr.mDrawableHeightLeft); 5935 desired = Math.max(desired, dr.mDrawableHeightRight); 5936 } 5937 5938 desired += pad; 5939 linecount = mMaximum; 5940 } 5941 } 5942 } else { 5943 desired = Math.min(desired, mMaximum); 5944 } 5945 5946 if (mMinMode == LINES) { 5947 if (linecount < mMinimum) { 5948 desired += getLineHeight() * (mMinimum - linecount); 5949 } 5950 } else { 5951 desired = Math.max(desired, mMinimum); 5952 } 5953 5954 // Check against our minimum height 5955 desired = Math.max(desired, getSuggestedMinimumHeight()); 5956 5957 return desired; 5958 } 5959 5960 /** 5961 * Check whether a change to the existing text layout requires a 5962 * new view layout. 5963 */ 5964 private void checkForResize() { 5965 boolean sizeChanged = false; 5966 5967 if (mLayout != null) { 5968 // Check if our width changed 5969 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 5970 sizeChanged = true; 5971 invalidate(); 5972 } 5973 5974 // Check if our height changed 5975 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 5976 int desiredHeight = getDesiredHeight(); 5977 5978 if (desiredHeight != this.getHeight()) { 5979 sizeChanged = true; 5980 } 5981 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 5982 if (mDesiredHeightAtMeasure >= 0) { 5983 int desiredHeight = getDesiredHeight(); 5984 5985 if (desiredHeight != mDesiredHeightAtMeasure) { 5986 sizeChanged = true; 5987 } 5988 } 5989 } 5990 } 5991 5992 if (sizeChanged) { 5993 requestLayout(); 5994 // caller will have already invalidated 5995 } 5996 } 5997 5998 /** 5999 * Check whether entirely new text requires a new view layout 6000 * or merely a new text layout. 6001 */ 6002 private void checkForRelayout() { 6003 // If we have a fixed width, we can just swap in a new text layout 6004 // if the text height stays the same or if the view height is fixed. 6005 6006 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT || 6007 (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) && 6008 (mHint == null || mHintLayout != null) && 6009 (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 6010 // Static width, so try making a new text layout. 6011 6012 int oldht = mLayout.getHeight(); 6013 int want = mLayout.getWidth(); 6014 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 6015 6016 /* 6017 * No need to bring the text into view, since the size is not 6018 * changing (unless we do the requestLayout(), in which case it 6019 * will happen at measure). 6020 */ 6021 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 6022 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 6023 false); 6024 6025 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 6026 // In a fixed-height view, so use our new text layout. 6027 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT && 6028 mLayoutParams.height != LayoutParams.MATCH_PARENT) { 6029 invalidate(); 6030 return; 6031 } 6032 6033 // Dynamic height, but height has stayed the same, 6034 // so use our new text layout. 6035 if (mLayout.getHeight() == oldht && 6036 (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 6037 invalidate(); 6038 return; 6039 } 6040 } 6041 6042 // We lose: the height has changed and we have a dynamic height. 6043 // Request a new view layout using our new text layout. 6044 requestLayout(); 6045 invalidate(); 6046 } else { 6047 // Dynamic width, so we have no choice but to request a new 6048 // view layout with a new text layout. 6049 6050 nullLayouts(); 6051 requestLayout(); 6052 invalidate(); 6053 } 6054 } 6055 6056 /** 6057 * Returns true if anything changed. 6058 */ 6059 private boolean bringTextIntoView() { 6060 int line = 0; 6061 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6062 line = mLayout.getLineCount() - 1; 6063 } 6064 6065 Layout.Alignment a = mLayout.getParagraphAlignment(line); 6066 int dir = mLayout.getParagraphDirection(line); 6067 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6068 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6069 int ht = mLayout.getHeight(); 6070 6071 int scrollx, scrolly; 6072 6073 if (a == Layout.Alignment.ALIGN_CENTER) { 6074 /* 6075 * Keep centered if possible, or, if it is too wide to fit, 6076 * keep leading edge in view. 6077 */ 6078 6079 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6080 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6081 6082 if (right - left < hspace) { 6083 scrollx = (right + left) / 2 - hspace / 2; 6084 } else { 6085 if (dir < 0) { 6086 scrollx = right - hspace; 6087 } else { 6088 scrollx = left; 6089 } 6090 } 6091 } else if (a == Layout.Alignment.ALIGN_NORMAL) { 6092 /* 6093 * Keep leading edge in view. 6094 */ 6095 6096 if (dir < 0) { 6097 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6098 scrollx = right - hspace; 6099 } else { 6100 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6101 } 6102 } else /* a == Layout.Alignment.ALIGN_OPPOSITE */ { 6103 /* 6104 * Keep trailing edge in view. 6105 */ 6106 6107 if (dir < 0) { 6108 scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6109 } else { 6110 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6111 scrollx = right - hspace; 6112 } 6113 } 6114 6115 if (ht < vspace) { 6116 scrolly = 0; 6117 } else { 6118 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6119 scrolly = ht - vspace; 6120 } else { 6121 scrolly = 0; 6122 } 6123 } 6124 6125 if (scrollx != mScrollX || scrolly != mScrollY) { 6126 scrollTo(scrollx, scrolly); 6127 return true; 6128 } else { 6129 return false; 6130 } 6131 } 6132 6133 /** 6134 * Move the point, specified by the offset, into the view if it is needed. 6135 * This has to be called after layout. Returns true if anything changed. 6136 */ 6137 public boolean bringPointIntoView(int offset) { 6138 boolean changed = false; 6139 6140 int line = mLayout.getLineForOffset(offset); 6141 6142 // FIXME: Is it okay to truncate this, or should we round? 6143 final int x = (int)mLayout.getPrimaryHorizontal(offset); 6144 final int top = mLayout.getLineTop(line); 6145 final int bottom = mLayout.getLineTop(line + 1); 6146 6147 int left = (int) FloatMath.floor(mLayout.getLineLeft(line)); 6148 int right = (int) FloatMath.ceil(mLayout.getLineRight(line)); 6149 int ht = mLayout.getHeight(); 6150 6151 int grav; 6152 6153 switch (mLayout.getParagraphAlignment(line)) { 6154 case ALIGN_NORMAL: 6155 grav = 1; 6156 break; 6157 6158 case ALIGN_OPPOSITE: 6159 grav = -1; 6160 break; 6161 6162 default: 6163 grav = 0; 6164 } 6165 6166 grav *= mLayout.getParagraphDirection(line); 6167 6168 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6169 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6170 6171 int hslack = (bottom - top) / 2; 6172 int vslack = hslack; 6173 6174 if (vslack > vspace / 4) 6175 vslack = vspace / 4; 6176 if (hslack > hspace / 4) 6177 hslack = hspace / 4; 6178 6179 int hs = mScrollX; 6180 int vs = mScrollY; 6181 6182 if (top - vs < vslack) 6183 vs = top - vslack; 6184 if (bottom - vs > vspace - vslack) 6185 vs = bottom - (vspace - vslack); 6186 if (ht - vs < vspace) 6187 vs = ht - vspace; 6188 if (0 - vs > 0) 6189 vs = 0; 6190 6191 if (grav != 0) { 6192 if (x - hs < hslack) { 6193 hs = x - hslack; 6194 } 6195 if (x - hs > hspace - hslack) { 6196 hs = x - (hspace - hslack); 6197 } 6198 } 6199 6200 if (grav < 0) { 6201 if (left - hs > 0) 6202 hs = left; 6203 if (right - hs < hspace) 6204 hs = right - hspace; 6205 } else if (grav > 0) { 6206 if (right - hs < hspace) 6207 hs = right - hspace; 6208 if (left - hs > 0) 6209 hs = left; 6210 } else /* grav == 0 */ { 6211 if (right - left <= hspace) { 6212 /* 6213 * If the entire text fits, center it exactly. 6214 */ 6215 hs = left - (hspace - (right - left)) / 2; 6216 } else if (x > right - hslack) { 6217 /* 6218 * If we are near the right edge, keep the right edge 6219 * at the edge of the view. 6220 */ 6221 hs = right - hspace; 6222 } else if (x < left + hslack) { 6223 /* 6224 * If we are near the left edge, keep the left edge 6225 * at the edge of the view. 6226 */ 6227 hs = left; 6228 } else if (left > hs) { 6229 /* 6230 * Is there whitespace visible at the left? Fix it if so. 6231 */ 6232 hs = left; 6233 } else if (right < hs + hspace) { 6234 /* 6235 * Is there whitespace visible at the right? Fix it if so. 6236 */ 6237 hs = right - hspace; 6238 } else { 6239 /* 6240 * Otherwise, float as needed. 6241 */ 6242 if (x - hs < hslack) { 6243 hs = x - hslack; 6244 } 6245 if (x - hs > hspace - hslack) { 6246 hs = x - (hspace - hslack); 6247 } 6248 } 6249 } 6250 6251 if (hs != mScrollX || vs != mScrollY) { 6252 if (mScroller == null) { 6253 scrollTo(hs, vs); 6254 } else { 6255 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 6256 int dx = hs - mScrollX; 6257 int dy = vs - mScrollY; 6258 6259 if (duration > ANIMATED_SCROLL_GAP) { 6260 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 6261 awakenScrollBars(mScroller.getDuration()); 6262 invalidate(); 6263 } else { 6264 if (!mScroller.isFinished()) { 6265 mScroller.abortAnimation(); 6266 } 6267 6268 scrollBy(dx, dy); 6269 } 6270 6271 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 6272 } 6273 6274 changed = true; 6275 } 6276 6277 if (isFocused()) { 6278 // This offsets because getInterestingRect() is in terms of viewport coordinates, but 6279 // requestRectangleOnScreen() is in terms of content coordinates. 6280 6281 if (mTempRect == null) mTempRect = new Rect(); 6282 mTempRect.set(x, top, x + 1, bottom); 6283 getInterestingRect(mTempRect, line); 6284 mTempRect.offset(mScrollX, mScrollY); 6285 6286 if (requestRectangleOnScreen(mTempRect)) { 6287 changed = true; 6288 } 6289 } 6290 6291 return changed; 6292 } 6293 6294 /** 6295 * Move the cursor, if needed, so that it is at an offset that is visible 6296 * to the user. This will not move the cursor if it represents more than 6297 * one character (a selection range). This will only work if the 6298 * TextView contains spannable text; otherwise it will do nothing. 6299 * 6300 * @return True if the cursor was actually moved, false otherwise. 6301 */ 6302 public boolean moveCursorToVisibleOffset() { 6303 if (!(mText instanceof Spannable)) { 6304 return false; 6305 } 6306 int start = getSelectionStart(); 6307 int end = getSelectionEnd(); 6308 if (start != end) { 6309 return false; 6310 } 6311 6312 // First: make sure the line is visible on screen: 6313 6314 int line = mLayout.getLineForOffset(start); 6315 6316 final int top = mLayout.getLineTop(line); 6317 final int bottom = mLayout.getLineTop(line + 1); 6318 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 6319 int vslack = (bottom - top) / 2; 6320 if (vslack > vspace / 4) 6321 vslack = vspace / 4; 6322 final int vs = mScrollY; 6323 6324 if (top < (vs+vslack)) { 6325 line = mLayout.getLineForVertical(vs+vslack+(bottom-top)); 6326 } else if (bottom > (vspace+vs-vslack)) { 6327 line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top)); 6328 } 6329 6330 // Next: make sure the character is visible on screen: 6331 6332 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 6333 final int hs = mScrollX; 6334 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 6335 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs); 6336 6337 // line might contain bidirectional text 6338 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 6339 final int highChar = leftChar > rightChar ? leftChar : rightChar; 6340 6341 int newStart = start; 6342 if (newStart < lowChar) { 6343 newStart = lowChar; 6344 } else if (newStart > highChar) { 6345 newStart = highChar; 6346 } 6347 6348 if (newStart != start) { 6349 Selection.setSelection((Spannable)mText, newStart); 6350 return true; 6351 } 6352 6353 return false; 6354 } 6355 6356 @Override 6357 public void computeScroll() { 6358 if (mScroller != null) { 6359 if (mScroller.computeScrollOffset()) { 6360 mScrollX = mScroller.getCurrX(); 6361 mScrollY = mScroller.getCurrY(); 6362 invalidateParentCaches(); 6363 postInvalidate(); // So we draw again 6364 } 6365 } 6366 } 6367 6368 private void getInterestingRect(Rect r, int line) { 6369 convertFromViewportToContentCoordinates(r); 6370 6371 // Rectangle can can be expanded on first and last line to take 6372 // padding into account. 6373 // TODO Take left/right padding into account too? 6374 if (line == 0) r.top -= getExtendedPaddingTop(); 6375 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 6376 } 6377 6378 private void convertFromViewportToContentCoordinates(Rect r) { 6379 final int horizontalOffset = viewportToContentHorizontalOffset(); 6380 r.left += horizontalOffset; 6381 r.right += horizontalOffset; 6382 6383 final int verticalOffset = viewportToContentVerticalOffset(); 6384 r.top += verticalOffset; 6385 r.bottom += verticalOffset; 6386 } 6387 6388 private int viewportToContentHorizontalOffset() { 6389 return getCompoundPaddingLeft() - mScrollX; 6390 } 6391 6392 private int viewportToContentVerticalOffset() { 6393 int offset = getExtendedPaddingTop() - mScrollY; 6394 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 6395 offset += getVerticalOffset(false); 6396 } 6397 return offset; 6398 } 6399 6400 @Override 6401 public void debug(int depth) { 6402 super.debug(depth); 6403 6404 String output = debugIndent(depth); 6405 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 6406 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 6407 + "} "; 6408 6409 if (mText != null) { 6410 6411 output += "mText=\"" + mText + "\" "; 6412 if (mLayout != null) { 6413 output += "mLayout width=" + mLayout.getWidth() 6414 + " height=" + mLayout.getHeight(); 6415 } 6416 } else { 6417 output += "mText=NULL"; 6418 } 6419 Log.d(VIEW_LOG_TAG, output); 6420 } 6421 6422 /** 6423 * Convenience for {@link Selection#getSelectionStart}. 6424 */ 6425 @ViewDebug.ExportedProperty(category = "text") 6426 public int getSelectionStart() { 6427 return Selection.getSelectionStart(getText()); 6428 } 6429 6430 /** 6431 * Convenience for {@link Selection#getSelectionEnd}. 6432 */ 6433 @ViewDebug.ExportedProperty(category = "text") 6434 public int getSelectionEnd() { 6435 return Selection.getSelectionEnd(getText()); 6436 } 6437 6438 /** 6439 * Return true iff there is a selection inside this text view. 6440 */ 6441 public boolean hasSelection() { 6442 final int selectionStart = getSelectionStart(); 6443 final int selectionEnd = getSelectionEnd(); 6444 6445 return selectionStart >= 0 && selectionStart != selectionEnd; 6446 } 6447 6448 /** 6449 * Sets the properties of this field (lines, horizontally scrolling, 6450 * transformation method) to be for a single-line input. 6451 * 6452 * @attr ref android.R.styleable#TextView_singleLine 6453 */ 6454 public void setSingleLine() { 6455 setSingleLine(true); 6456 } 6457 6458 /** 6459 * If true, sets the properties of this field (number of lines, horizontally scrolling, 6460 * transformation method) to be for a single-line input; if false, restores these to the default 6461 * conditions. 6462 * 6463 * Note that the default conditions are not necessarily those that were in effect prior this 6464 * method, and you may want to reset these properties to your custom values. 6465 * 6466 * @attr ref android.R.styleable#TextView_singleLine 6467 */ 6468 @android.view.RemotableViewMethod 6469 public void setSingleLine(boolean singleLine) { 6470 // Could be used, but may break backward compatibility. 6471 // if (mSingleLine == singleLine) return; 6472 setInputTypeSingleLine(singleLine); 6473 applySingleLine(singleLine, true, true); 6474 } 6475 6476 /** 6477 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 6478 * @param singleLine 6479 */ 6480 private void setInputTypeSingleLine(boolean singleLine) { 6481 if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) { 6482 if (singleLine) { 6483 mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6484 } else { 6485 mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 6486 } 6487 } 6488 } 6489 6490 private void applySingleLine(boolean singleLine, boolean applyTransformation, 6491 boolean changeMaxLines) { 6492 mSingleLine = singleLine; 6493 if (singleLine) { 6494 setLines(1); 6495 setHorizontallyScrolling(true); 6496 if (applyTransformation) { 6497 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 6498 } 6499 } else { 6500 if (changeMaxLines) { 6501 setMaxLines(Integer.MAX_VALUE); 6502 } 6503 setHorizontallyScrolling(false); 6504 if (applyTransformation) { 6505 setTransformationMethod(null); 6506 } 6507 } 6508 } 6509 6510 /** 6511 * Causes words in the text that are longer than the view is wide 6512 * to be ellipsized instead of broken in the middle. You may also 6513 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 6514 * to constrain the text to a single line. Use <code>null</code> 6515 * to turn off ellipsizing. 6516 * 6517 * @attr ref android.R.styleable#TextView_ellipsize 6518 */ 6519 public void setEllipsize(TextUtils.TruncateAt where) { 6520 mEllipsize = where; 6521 6522 if (mLayout != null) { 6523 nullLayouts(); 6524 requestLayout(); 6525 invalidate(); 6526 } 6527 } 6528 6529 /** 6530 * Sets how many times to repeat the marquee animation. Only applied if the 6531 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 6532 * 6533 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 6534 */ 6535 public void setMarqueeRepeatLimit(int marqueeLimit) { 6536 mMarqueeRepeatLimit = marqueeLimit; 6537 } 6538 6539 /** 6540 * Returns where, if anywhere, words that are longer than the view 6541 * is wide should be ellipsized. 6542 */ 6543 @ViewDebug.ExportedProperty 6544 public TextUtils.TruncateAt getEllipsize() { 6545 return mEllipsize; 6546 } 6547 6548 /** 6549 * Set the TextView so that when it takes focus, all the text is 6550 * selected. 6551 * 6552 * @attr ref android.R.styleable#TextView_selectAllOnFocus 6553 */ 6554 @android.view.RemotableViewMethod 6555 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 6556 mSelectAllOnFocus = selectAllOnFocus; 6557 6558 if (selectAllOnFocus && !(mText instanceof Spannable)) { 6559 setText(mText, BufferType.SPANNABLE); 6560 } 6561 } 6562 6563 /** 6564 * Set whether the cursor is visible. The default is true. 6565 * 6566 * @attr ref android.R.styleable#TextView_cursorVisible 6567 */ 6568 @android.view.RemotableViewMethod 6569 public void setCursorVisible(boolean visible) { 6570 if (mCursorVisible != visible) { 6571 mCursorVisible = visible; 6572 invalidate(); 6573 6574 makeBlink(); 6575 6576 // InsertionPointCursorController depends on mCursorVisible 6577 prepareCursorControllers(); 6578 } 6579 } 6580 6581 private boolean isCursorVisible() { 6582 return mCursorVisible && isTextEditable(); 6583 } 6584 6585 private boolean canMarquee() { 6586 int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight()); 6587 return width > 0 && mLayout.getLineWidth(0) > width; 6588 } 6589 6590 private void startMarquee() { 6591 // Do not ellipsize EditText 6592 if (mInput != null) return; 6593 6594 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 6595 return; 6596 } 6597 6598 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) && 6599 getLineCount() == 1 && canMarquee()) { 6600 6601 if (mMarquee == null) mMarquee = new Marquee(this); 6602 mMarquee.start(mMarqueeRepeatLimit); 6603 } 6604 } 6605 6606 private void stopMarquee() { 6607 if (mMarquee != null && !mMarquee.isStopped()) { 6608 mMarquee.stop(); 6609 } 6610 } 6611 6612 private void startStopMarquee(boolean start) { 6613 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6614 if (start) { 6615 startMarquee(); 6616 } else { 6617 stopMarquee(); 6618 } 6619 } 6620 } 6621 6622 private static final class Marquee extends Handler { 6623 // TODO: Add an option to configure this 6624 private static final float MARQUEE_DELTA_MAX = 0.07f; 6625 private static final int MARQUEE_DELAY = 1200; 6626 private static final int MARQUEE_RESTART_DELAY = 1200; 6627 private static final int MARQUEE_RESOLUTION = 1000 / 30; 6628 private static final int MARQUEE_PIXELS_PER_SECOND = 30; 6629 6630 private static final byte MARQUEE_STOPPED = 0x0; 6631 private static final byte MARQUEE_STARTING = 0x1; 6632 private static final byte MARQUEE_RUNNING = 0x2; 6633 6634 private static final int MESSAGE_START = 0x1; 6635 private static final int MESSAGE_TICK = 0x2; 6636 private static final int MESSAGE_RESTART = 0x3; 6637 6638 private final WeakReference<TextView> mView; 6639 6640 private byte mStatus = MARQUEE_STOPPED; 6641 private final float mScrollUnit; 6642 private float mMaxScroll; 6643 float mMaxFadeScroll; 6644 private float mGhostStart; 6645 private float mGhostOffset; 6646 private float mFadeStop; 6647 private int mRepeatLimit; 6648 6649 float mScroll; 6650 6651 Marquee(TextView v) { 6652 final float density = v.getContext().getResources().getDisplayMetrics().density; 6653 mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION; 6654 mView = new WeakReference<TextView>(v); 6655 } 6656 6657 @Override 6658 public void handleMessage(Message msg) { 6659 switch (msg.what) { 6660 case MESSAGE_START: 6661 mStatus = MARQUEE_RUNNING; 6662 tick(); 6663 break; 6664 case MESSAGE_TICK: 6665 tick(); 6666 break; 6667 case MESSAGE_RESTART: 6668 if (mStatus == MARQUEE_RUNNING) { 6669 if (mRepeatLimit >= 0) { 6670 mRepeatLimit--; 6671 } 6672 start(mRepeatLimit); 6673 } 6674 break; 6675 } 6676 } 6677 6678 void tick() { 6679 if (mStatus != MARQUEE_RUNNING) { 6680 return; 6681 } 6682 6683 removeMessages(MESSAGE_TICK); 6684 6685 final TextView textView = mView.get(); 6686 if (textView != null && (textView.isFocused() || textView.isSelected())) { 6687 mScroll += mScrollUnit; 6688 if (mScroll > mMaxScroll) { 6689 mScroll = mMaxScroll; 6690 sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY); 6691 } else { 6692 sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION); 6693 } 6694 textView.invalidate(); 6695 } 6696 } 6697 6698 void stop() { 6699 mStatus = MARQUEE_STOPPED; 6700 removeMessages(MESSAGE_START); 6701 removeMessages(MESSAGE_RESTART); 6702 removeMessages(MESSAGE_TICK); 6703 resetScroll(); 6704 } 6705 6706 private void resetScroll() { 6707 mScroll = 0.0f; 6708 final TextView textView = mView.get(); 6709 if (textView != null) textView.invalidate(); 6710 } 6711 6712 void start(int repeatLimit) { 6713 if (repeatLimit == 0) { 6714 stop(); 6715 return; 6716 } 6717 mRepeatLimit = repeatLimit; 6718 final TextView textView = mView.get(); 6719 if (textView != null && textView.mLayout != null) { 6720 mStatus = MARQUEE_STARTING; 6721 mScroll = 0.0f; 6722 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() - 6723 textView.getCompoundPaddingRight(); 6724 final float lineWidth = textView.mLayout.getLineWidth(0); 6725 final float gap = textWidth / 3.0f; 6726 mGhostStart = lineWidth - textWidth + gap; 6727 mMaxScroll = mGhostStart + textWidth; 6728 mGhostOffset = lineWidth + gap; 6729 mFadeStop = lineWidth + textWidth / 6.0f; 6730 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 6731 6732 textView.invalidate(); 6733 sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY); 6734 } 6735 } 6736 6737 float getGhostOffset() { 6738 return mGhostOffset; 6739 } 6740 6741 boolean shouldDrawLeftFade() { 6742 return mScroll <= mFadeStop; 6743 } 6744 6745 boolean shouldDrawGhost() { 6746 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 6747 } 6748 6749 boolean isRunning() { 6750 return mStatus == MARQUEE_RUNNING; 6751 } 6752 6753 boolean isStopped() { 6754 return mStatus == MARQUEE_STOPPED; 6755 } 6756 } 6757 6758 /** 6759 * This method is called when the text is changed, in case any subclasses 6760 * would like to know. 6761 * 6762 * Within <code>text</code>, the <code>lengthAfter</code> characters 6763 * beginning at <code>start</code> have just replaced old text that had 6764 * length <code>lengthBefore</code>. It is an error to attempt to make 6765 * changes to <code>text</code> from this callback. 6766 * 6767 * @param text The text the TextView is displaying 6768 * @param start The offset of the start of the range of the text that was 6769 * modified 6770 * @param lengthBefore The length of the former text that has been replaced 6771 * @param lengthAfter The length of the replacement modified text 6772 */ 6773 protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { 6774 } 6775 6776 /** 6777 * This method is called when the selection has changed, in case any 6778 * subclasses would like to know. 6779 * 6780 * @param selStart The new selection start location. 6781 * @param selEnd The new selection end location. 6782 */ 6783 protected void onSelectionChanged(int selStart, int selEnd) { 6784 } 6785 6786 /** 6787 * Adds a TextWatcher to the list of those whose methods are called 6788 * whenever this TextView's text changes. 6789 * <p> 6790 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 6791 * not called after {@link #setText} calls. Now, doing {@link #setText} 6792 * if there are any text changed listeners forces the buffer type to 6793 * Editable if it would not otherwise be and does call this method. 6794 */ 6795 public void addTextChangedListener(TextWatcher watcher) { 6796 if (mListeners == null) { 6797 mListeners = new ArrayList<TextWatcher>(); 6798 } 6799 6800 mListeners.add(watcher); 6801 } 6802 6803 /** 6804 * Removes the specified TextWatcher from the list of those whose 6805 * methods are called 6806 * whenever this TextView's text changes. 6807 */ 6808 public void removeTextChangedListener(TextWatcher watcher) { 6809 if (mListeners != null) { 6810 int i = mListeners.indexOf(watcher); 6811 6812 if (i >= 0) { 6813 mListeners.remove(i); 6814 } 6815 } 6816 } 6817 6818 private void sendBeforeTextChanged(CharSequence text, int start, int before, 6819 int after) { 6820 if (mListeners != null) { 6821 final ArrayList<TextWatcher> list = mListeners; 6822 final int count = list.size(); 6823 for (int i = 0; i < count; i++) { 6824 list.get(i).beforeTextChanged(text, start, before, after); 6825 } 6826 } 6827 } 6828 6829 /** 6830 * Not private so it can be called from an inner class without going 6831 * through a thunk. 6832 */ 6833 void sendOnTextChanged(CharSequence text, int start, int before, 6834 int after) { 6835 if (mListeners != null) { 6836 final ArrayList<TextWatcher> list = mListeners; 6837 final int count = list.size(); 6838 for (int i = 0; i < count; i++) { 6839 list.get(i).onTextChanged(text, start, before, after); 6840 } 6841 } 6842 } 6843 6844 /** 6845 * Not private so it can be called from an inner class without going 6846 * through a thunk. 6847 */ 6848 void sendAfterTextChanged(Editable text) { 6849 if (mListeners != null) { 6850 final ArrayList<TextWatcher> list = mListeners; 6851 final int count = list.size(); 6852 for (int i = 0; i < count; i++) { 6853 list.get(i).afterTextChanged(text); 6854 } 6855 } 6856 } 6857 6858 /** 6859 * Not private so it can be called from an inner class without going 6860 * through a thunk. 6861 */ 6862 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 6863 final InputMethodState ims = mInputMethodState; 6864 if (ims == null || ims.mBatchEditNesting == 0) { 6865 updateAfterEdit(); 6866 } 6867 if (ims != null) { 6868 ims.mContentChanged = true; 6869 if (ims.mChangedStart < 0) { 6870 ims.mChangedStart = start; 6871 ims.mChangedEnd = start+before; 6872 } else { 6873 ims.mChangedStart = Math.min(ims.mChangedStart, start); 6874 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 6875 } 6876 ims.mChangedDelta += after-before; 6877 } 6878 6879 sendOnTextChanged(buffer, start, before, after); 6880 onTextChanged(buffer, start, before, after); 6881 6882 // Hide the controllers if the amount of content changed 6883 if (before != after) { 6884 hideControllers(); 6885 } 6886 } 6887 6888 /** 6889 * Not private so it can be called from an inner class without going 6890 * through a thunk. 6891 */ 6892 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 6893 // XXX Make the start and end move together if this ends up 6894 // spending too much time invalidating. 6895 6896 boolean selChanged = false; 6897 int newSelStart=-1, newSelEnd=-1; 6898 6899 final InputMethodState ims = mInputMethodState; 6900 6901 if (what == Selection.SELECTION_END) { 6902 mHighlightPathBogus = true; 6903 selChanged = true; 6904 newSelEnd = newStart; 6905 6906 if (!isFocused()) { 6907 mSelectionMoved = true; 6908 } 6909 6910 if (oldStart >= 0 || newStart >= 0) { 6911 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 6912 registerForPreDraw(); 6913 makeBlink(); 6914 } 6915 } 6916 6917 if (what == Selection.SELECTION_START) { 6918 mHighlightPathBogus = true; 6919 selChanged = true; 6920 newSelStart = newStart; 6921 6922 if (!isFocused()) { 6923 mSelectionMoved = true; 6924 } 6925 6926 if (oldStart >= 0 || newStart >= 0) { 6927 int end = Selection.getSelectionEnd(buf); 6928 invalidateCursor(end, oldStart, newStart); 6929 } 6930 } 6931 6932 if (selChanged) { 6933 if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) { 6934 if (newSelStart < 0) { 6935 newSelStart = Selection.getSelectionStart(buf); 6936 } 6937 if (newSelEnd < 0) { 6938 newSelEnd = Selection.getSelectionEnd(buf); 6939 } 6940 onSelectionChanged(newSelStart, newSelEnd); 6941 } 6942 } 6943 6944 if (what instanceof UpdateAppearance || 6945 what instanceof ParagraphStyle) { 6946 if (ims == null || ims.mBatchEditNesting == 0) { 6947 invalidate(); 6948 mHighlightPathBogus = true; 6949 checkForResize(); 6950 } else { 6951 ims.mContentChanged = true; 6952 } 6953 } 6954 6955 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 6956 mHighlightPathBogus = true; 6957 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 6958 ims.mSelectionModeChanged = true; 6959 } 6960 6961 if (Selection.getSelectionStart(buf) >= 0) { 6962 if (ims == null || ims.mBatchEditNesting == 0) { 6963 invalidateCursor(); 6964 } else { 6965 ims.mCursorChanged = true; 6966 } 6967 } 6968 } 6969 6970 if (what instanceof ParcelableSpan) { 6971 // If this is a span that can be sent to a remote process, 6972 // the current extract editor would be interested in it. 6973 if (ims != null && ims.mExtracting != null) { 6974 if (ims.mBatchEditNesting != 0) { 6975 if (oldStart >= 0) { 6976 if (ims.mChangedStart > oldStart) { 6977 ims.mChangedStart = oldStart; 6978 } 6979 if (ims.mChangedStart > oldEnd) { 6980 ims.mChangedStart = oldEnd; 6981 } 6982 } 6983 if (newStart >= 0) { 6984 if (ims.mChangedStart > newStart) { 6985 ims.mChangedStart = newStart; 6986 } 6987 if (ims.mChangedStart > newEnd) { 6988 ims.mChangedStart = newEnd; 6989 } 6990 } 6991 } else { 6992 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: " 6993 + oldStart + "-" + oldEnd + "," 6994 + newStart + "-" + newEnd + what); 6995 ims.mContentChanged = true; 6996 } 6997 } 6998 } 6999 } 7000 7001 private class ChangeWatcher 7002 implements TextWatcher, SpanWatcher { 7003 7004 private CharSequence mBeforeText; 7005 7006 public void beforeTextChanged(CharSequence buffer, int start, 7007 int before, int after) { 7008 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start 7009 + " before=" + before + " after=" + after + ": " + buffer); 7010 7011 if (AccessibilityManager.getInstance(mContext).isEnabled() 7012 && !isPasswordInputType(mInputType) 7013 && !hasPasswordTransformationMethod()) { 7014 mBeforeText = buffer.toString(); 7015 } 7016 7017 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 7018 } 7019 7020 public void onTextChanged(CharSequence buffer, int start, 7021 int before, int after) { 7022 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start 7023 + " before=" + before + " after=" + after + ": " + buffer); 7024 TextView.this.handleTextChanged(buffer, start, before, after); 7025 7026 if (AccessibilityManager.getInstance(mContext).isEnabled() && 7027 (isFocused() || isSelected() && 7028 isShown())) { 7029 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 7030 mBeforeText = null; 7031 } 7032 } 7033 7034 public void afterTextChanged(Editable buffer) { 7035 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer); 7036 TextView.this.sendAfterTextChanged(buffer); 7037 7038 if (MetaKeyKeyListener.getMetaState(buffer, 7039 MetaKeyKeyListener.META_SELECTING) != 0) { 7040 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 7041 } 7042 } 7043 7044 public void onSpanChanged(Spannable buf, 7045 Object what, int s, int e, int st, int en) { 7046 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 7047 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 7048 TextView.this.spanChange(buf, what, s, st, e, en); 7049 } 7050 7051 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 7052 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e 7053 + " what=" + what + ": " + buf); 7054 TextView.this.spanChange(buf, what, -1, s, -1, e); 7055 } 7056 7057 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 7058 if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e 7059 + " what=" + what + ": " + buf); 7060 TextView.this.spanChange(buf, what, s, -1, e, -1); 7061 } 7062 } 7063 7064 /** 7065 * @hide 7066 */ 7067 @Override 7068 public void dispatchFinishTemporaryDetach() { 7069 mDispatchTemporaryDetach = true; 7070 super.dispatchFinishTemporaryDetach(); 7071 mDispatchTemporaryDetach = false; 7072 } 7073 7074 @Override 7075 public void onStartTemporaryDetach() { 7076 super.onStartTemporaryDetach(); 7077 // Only track when onStartTemporaryDetach() is called directly, 7078 // usually because this instance is an editable field in a list 7079 if (!mDispatchTemporaryDetach) mTemporaryDetach = true; 7080 7081 // Because of View recycling in ListView, there is no easy way to know when a TextView with 7082 // selection becomes visible again. Until a better solution is found, stop text selection 7083 // mode (if any) as soon as this TextView is recycled. 7084 stopSelectionActionMode(); 7085 } 7086 7087 @Override 7088 public void onFinishTemporaryDetach() { 7089 super.onFinishTemporaryDetach(); 7090 // Only track when onStartTemporaryDetach() is called directly, 7091 // usually because this instance is an editable field in a list 7092 if (!mDispatchTemporaryDetach) mTemporaryDetach = false; 7093 } 7094 7095 @Override 7096 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 7097 if (mTemporaryDetach) { 7098 // If we are temporarily in the detach state, then do nothing. 7099 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7100 return; 7101 } 7102 7103 mShowCursor = SystemClock.uptimeMillis(); 7104 7105 ensureEndedBatchEdit(); 7106 7107 if (focused) { 7108 int selStart = getSelectionStart(); 7109 int selEnd = getSelectionEnd(); 7110 7111 // SelectAllOnFocus fields are highlighted and not selected. Do not start text selection 7112 // mode for these, unless there was a specific selection already started. 7113 final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 && 7114 selEnd == mText.length(); 7115 mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted; 7116 7117 if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) { 7118 // If a tap was used to give focus to that view, move cursor at tap position. 7119 // Has to be done before onTakeFocus, which can be overloaded. 7120 final int lastTapPosition = getLastTapPosition(); 7121 if (lastTapPosition >= 0) { 7122 Selection.setSelection((Spannable) mText, lastTapPosition); 7123 } 7124 7125 if (mMovement != null) { 7126 mMovement.onTakeFocus(this, (Spannable) mText, direction); 7127 } 7128 7129 // The DecorView does not have focus when the 'Done' ExtractEditText button is 7130 // pressed. Since it is the ViewRoot's mView, it requests focus before 7131 // ExtractEditText clears focus, which gives focus to the ExtractEditText. 7132 // This special case ensure that we keep current selection in that case. 7133 // It would be better to know why the DecorView does not have focus at that time. 7134 if (((this instanceof ExtractEditText) || mSelectionMoved) && 7135 selStart >= 0 && selEnd >= 0) { 7136 /* 7137 * Someone intentionally set the selection, so let them 7138 * do whatever it is that they wanted to do instead of 7139 * the default on-focus behavior. We reset the selection 7140 * here instead of just skipping the onTakeFocus() call 7141 * because some movement methods do something other than 7142 * just setting the selection in theirs and we still 7143 * need to go through that path. 7144 */ 7145 Selection.setSelection((Spannable) mText, selStart, selEnd); 7146 } 7147 7148 if (mSelectAllOnFocus) { 7149 selectAll(); 7150 } 7151 7152 mTouchFocusSelected = true; 7153 } 7154 7155 mFrozenWithFocus = false; 7156 mSelectionMoved = false; 7157 7158 if (mText instanceof Spannable) { 7159 Spannable sp = (Spannable) mText; 7160 MetaKeyKeyListener.resetMetaState(sp); 7161 } 7162 7163 makeBlink(); 7164 7165 if (mError != null) { 7166 showError(); 7167 } 7168 } else { 7169 if (mError != null) { 7170 hideError(); 7171 } 7172 // Don't leave us in the middle of a batch edit. 7173 onEndBatchEdit(); 7174 7175 if (this instanceof ExtractEditText) { 7176 // terminateTextSelectionMode removes selection, which we want to keep when 7177 // ExtractEditText goes out of focus. 7178 final int selStart = getSelectionStart(); 7179 final int selEnd = getSelectionEnd(); 7180 hideControllers(); 7181 Selection.setSelection((Spannable) mText, selStart, selEnd); 7182 } else { 7183 hideControllers(); 7184 } 7185 7186 // No need to create the controller 7187 if (mSelectionModifierCursorController != null) { 7188 mSelectionModifierCursorController.resetTouchOffsets(); 7189 } 7190 } 7191 7192 startStopMarquee(focused); 7193 7194 if (mTransformation != null) { 7195 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 7196 } 7197 7198 super.onFocusChanged(focused, direction, previouslyFocusedRect); 7199 7200 // Performed after super.onFocusChanged so that this TextView is registered and can ask for 7201 // the IME. Showing the IME while focus is moved using the D-Pad is a bad idea, however this 7202 // does not happen in that case (using the arrows on a bluetooth keyboard). 7203 if (focused && isTextEditable()) { 7204 final InputMethodManager imm = InputMethodManager.peekInstance(); 7205 if (imm != null) imm.showSoftInput(this, 0); 7206 } 7207 } 7208 7209 private int getLastTapPosition() { 7210 // No need to create the controller at that point, no last tap position saved 7211 if (mSelectionModifierCursorController != null) { 7212 int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset(); 7213 if (lastTapPosition >= 0) { 7214 // Safety check, should not be possible. 7215 if (lastTapPosition > mText.length()) { 7216 Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs " 7217 + mText.length() + ")"); 7218 lastTapPosition = mText.length(); 7219 } 7220 return lastTapPosition; 7221 } 7222 } 7223 7224 return -1; 7225 } 7226 7227 @Override 7228 public void onWindowFocusChanged(boolean hasWindowFocus) { 7229 super.onWindowFocusChanged(hasWindowFocus); 7230 7231 if (hasWindowFocus) { 7232 if (mBlink != null) { 7233 mBlink.uncancel(); 7234 makeBlink(); 7235 } 7236 } else { 7237 if (mBlink != null) { 7238 mBlink.cancel(); 7239 } 7240 // Don't leave us in the middle of a batch edit. 7241 onEndBatchEdit(); 7242 if (mInputContentType != null) { 7243 mInputContentType.enterDown = false; 7244 } 7245 hideControllers(); 7246 } 7247 7248 startStopMarquee(hasWindowFocus); 7249 } 7250 7251 @Override 7252 protected void onVisibilityChanged(View changedView, int visibility) { 7253 super.onVisibilityChanged(changedView, visibility); 7254 if (visibility != VISIBLE) { 7255 hideControllers(); 7256 } 7257 } 7258 7259 /** 7260 * Use {@link BaseInputConnection#removeComposingSpans 7261 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 7262 * state from this text view. 7263 */ 7264 public void clearComposingText() { 7265 if (mText instanceof Spannable) { 7266 BaseInputConnection.removeComposingSpans((Spannable)mText); 7267 } 7268 } 7269 7270 @Override 7271 public void setSelected(boolean selected) { 7272 boolean wasSelected = isSelected(); 7273 7274 super.setSelected(selected); 7275 7276 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7277 if (selected) { 7278 startMarquee(); 7279 } else { 7280 stopMarquee(); 7281 } 7282 } 7283 } 7284 7285 @Override 7286 public boolean onTouchEvent(MotionEvent event) { 7287 final int action = event.getActionMasked(); 7288 7289 if (hasInsertionController()) { 7290 getInsertionController().onTouchEvent(event); 7291 } 7292 if (hasSelectionController()) { 7293 getSelectionController().onTouchEvent(event); 7294 } 7295 7296 if (action == MotionEvent.ACTION_DOWN) { 7297 mLastDownPositionX = (int) event.getX(); 7298 mLastDownPositionY = (int) event.getY(); 7299 7300 // Reset this state; it will be re-set if super.onTouchEvent 7301 // causes focus to move to the view. 7302 mTouchFocusSelected = false; 7303 mIgnoreActionUpEvent = false; 7304 } 7305 7306 final boolean superResult = super.onTouchEvent(event); 7307 7308 /* 7309 * Don't handle the release after a long press, because it will 7310 * move the selection away from whatever the menu action was 7311 * trying to affect. 7312 */ 7313 if (mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 7314 mDiscardNextActionUp = false; 7315 return superResult; 7316 } 7317 7318 final boolean touchIsFinished = action == MotionEvent.ACTION_UP && !mIgnoreActionUpEvent && 7319 isFocused(); 7320 7321 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 7322 && mText instanceof Spannable && mLayout != null) { 7323 boolean handled = false; 7324 7325 if (mMovement != null) { 7326 handled |= mMovement.onTouchEvent(this, (Spannable) mText, event); 7327 } 7328 7329 if (mLinksClickable && mAutoLinkMask != 0 && mTextIsSelectable && touchIsFinished) { 7330 // The LinkMovementMethod which should handle taps on links has not been installed 7331 // to support text selection. We reproduce its behavior here to open links. 7332 ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(), 7333 getSelectionEnd(), ClickableSpan.class); 7334 7335 if (links.length != 0) { 7336 links[0].onClick(this); 7337 handled = true; 7338 } 7339 } 7340 7341 if ((isTextEditable() || mTextIsSelectable) && touchIsFinished) { 7342 // Show the IME, except when selecting in read-only text. 7343 if (!mTextIsSelectable) { 7344 final InputMethodManager imm = InputMethodManager.peekInstance(); 7345 handled |= imm != null && imm.showSoftInput(this, 0); 7346 } 7347 7348 boolean selectAllGotFocus = mSelectAllOnFocus && didTouchFocusSelect(); 7349 if (!selectAllGotFocus && hasSelection()) { 7350 startSelectionActionMode(); 7351 } else { 7352 stopSelectionActionMode(); 7353 if (hasInsertionController() && !selectAllGotFocus && mText.length() > 0) { 7354 getInsertionController().show(); 7355 } 7356 } 7357 } 7358 7359 if (handled) { 7360 return true; 7361 } 7362 } 7363 7364 return superResult; 7365 } 7366 7367 @Override 7368 public boolean onGenericMotionEvent(MotionEvent event) { 7369 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 7370 try { 7371 if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) { 7372 return true; 7373 } 7374 } catch (AbstractMethodError ex) { 7375 // onGenericMotionEvent was added to the MovementMethod interface in API 12. 7376 // Ignore its absence in case third party applications implemented the 7377 // interface directly. 7378 } 7379 } 7380 return super.onGenericMotionEvent(event); 7381 } 7382 7383 private void prepareCursorControllers() { 7384 boolean windowSupportsHandles = false; 7385 7386 ViewGroup.LayoutParams params = getRootView().getLayoutParams(); 7387 if (params instanceof WindowManager.LayoutParams) { 7388 WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params; 7389 windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW 7390 || windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW; 7391 } 7392 7393 mInsertionControllerEnabled = windowSupportsHandles && isCursorVisible() && mLayout != null; 7394 mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() && 7395 mLayout != null; 7396 7397 if (!mInsertionControllerEnabled) { 7398 hideInsertionPointCursorController(); 7399 if (mInsertionPointCursorController != null) { 7400 mInsertionPointCursorController.onDetached(); 7401 mInsertionPointCursorController = null; 7402 } 7403 } 7404 7405 if (!mSelectionControllerEnabled) { 7406 stopSelectionActionMode(); 7407 if (mSelectionModifierCursorController != null) { 7408 mSelectionModifierCursorController.onDetached(); 7409 mSelectionModifierCursorController = null; 7410 } 7411 } 7412 } 7413 7414 /** 7415 * @return True iff this TextView contains a text that can be edited, or if this is 7416 * a selectable TextView. 7417 */ 7418 private boolean isTextEditable() { 7419 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 7420 } 7421 7422 /** 7423 * Returns true, only while processing a touch gesture, if the initial 7424 * touch down event caused focus to move to the text view and as a result 7425 * its selection changed. Only valid while processing the touch gesture 7426 * of interest. 7427 */ 7428 public boolean didTouchFocusSelect() { 7429 return mTouchFocusSelected; 7430 } 7431 7432 @Override 7433 public void cancelLongPress() { 7434 super.cancelLongPress(); 7435 mIgnoreActionUpEvent = true; 7436 } 7437 7438 @Override 7439 public boolean onTrackballEvent(MotionEvent event) { 7440 if (mMovement != null && mText instanceof Spannable && 7441 mLayout != null) { 7442 if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) { 7443 return true; 7444 } 7445 } 7446 7447 return super.onTrackballEvent(event); 7448 } 7449 7450 public void setScroller(Scroller s) { 7451 mScroller = s; 7452 } 7453 7454 private static class Blink extends Handler implements Runnable { 7455 private final WeakReference<TextView> mView; 7456 private boolean mCancelled; 7457 7458 public Blink(TextView v) { 7459 mView = new WeakReference<TextView>(v); 7460 } 7461 7462 public void run() { 7463 if (mCancelled) { 7464 return; 7465 } 7466 7467 removeCallbacks(Blink.this); 7468 7469 TextView tv = mView.get(); 7470 7471 if (tv != null && tv.shouldBlink()) { 7472 if (tv.mLayout != null) { 7473 tv.invalidateCursorPath(); 7474 } 7475 7476 postAtTime(this, SystemClock.uptimeMillis() + BLINK); 7477 } 7478 } 7479 7480 void cancel() { 7481 if (!mCancelled) { 7482 removeCallbacks(Blink.this); 7483 mCancelled = true; 7484 } 7485 } 7486 7487 void uncancel() { 7488 mCancelled = false; 7489 } 7490 } 7491 7492 /** 7493 * @return True when the TextView isFocused and has a valid zero-length selection (cursor). 7494 */ 7495 private boolean shouldBlink() { 7496 if (!isFocused()) return false; 7497 7498 final int start = getSelectionStart(); 7499 if (start < 0) return false; 7500 7501 final int end = getSelectionEnd(); 7502 if (end < 0) return false; 7503 7504 return start == end; 7505 } 7506 7507 private void makeBlink() { 7508 if (isCursorVisible()) { 7509 if (shouldBlink()) { 7510 mShowCursor = SystemClock.uptimeMillis(); 7511 if (mBlink == null) mBlink = new Blink(this); 7512 mBlink.removeCallbacks(mBlink); 7513 mBlink.postAtTime(mBlink, mShowCursor + BLINK); 7514 } 7515 } else { 7516 if (mBlink != null) mBlink.removeCallbacks(mBlink); 7517 } 7518 } 7519 7520 @Override 7521 protected float getLeftFadingEdgeStrength() { 7522 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7523 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7524 if (mMarquee != null && !mMarquee.isStopped()) { 7525 final Marquee marquee = mMarquee; 7526 if (marquee.shouldDrawLeftFade()) { 7527 return marquee.mScroll / getHorizontalFadingEdgeLength(); 7528 } else { 7529 return 0.0f; 7530 } 7531 } else if (getLineCount() == 1) { 7532 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7533 case Gravity.LEFT: 7534 return 0.0f; 7535 case Gravity.RIGHT: 7536 return (mLayout.getLineRight(0) - (mRight - mLeft) - 7537 getCompoundPaddingLeft() - getCompoundPaddingRight() - 7538 mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength(); 7539 case Gravity.CENTER_HORIZONTAL: 7540 return 0.0f; 7541 } 7542 } 7543 } 7544 return super.getLeftFadingEdgeStrength(); 7545 } 7546 7547 @Override 7548 protected float getRightFadingEdgeStrength() { 7549 if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f; 7550 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 7551 if (mMarquee != null && !mMarquee.isStopped()) { 7552 final Marquee marquee = mMarquee; 7553 return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength(); 7554 } else if (getLineCount() == 1) { 7555 switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { 7556 case Gravity.LEFT: 7557 final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() - 7558 getCompoundPaddingRight(); 7559 final float lineWidth = mLayout.getLineWidth(0); 7560 return (lineWidth - textWidth) / getHorizontalFadingEdgeLength(); 7561 case Gravity.RIGHT: 7562 return 0.0f; 7563 case Gravity.CENTER_HORIZONTAL: 7564 case Gravity.FILL_HORIZONTAL: 7565 return (mLayout.getLineWidth(0) - ((mRight - mLeft) - 7566 getCompoundPaddingLeft() - getCompoundPaddingRight())) / 7567 getHorizontalFadingEdgeLength(); 7568 } 7569 } 7570 } 7571 return super.getRightFadingEdgeStrength(); 7572 } 7573 7574 @Override 7575 protected int computeHorizontalScrollRange() { 7576 if (mLayout != null) { 7577 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ? 7578 (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 7579 } 7580 7581 return super.computeHorizontalScrollRange(); 7582 } 7583 7584 @Override 7585 protected int computeVerticalScrollRange() { 7586 if (mLayout != null) 7587 return mLayout.getHeight(); 7588 7589 return super.computeVerticalScrollRange(); 7590 } 7591 7592 @Override 7593 protected int computeVerticalScrollExtent() { 7594 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 7595 } 7596 7597 public enum BufferType { 7598 NORMAL, SPANNABLE, EDITABLE, 7599 } 7600 7601 /** 7602 * Returns the TextView_textColor attribute from the 7603 * Resources.StyledAttributes, if set, or the TextAppearance_textColor 7604 * from the TextView_textAppearance attribute, if TextView_textColor 7605 * was not set directly. 7606 */ 7607 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 7608 ColorStateList colors; 7609 colors = attrs.getColorStateList(com.android.internal.R.styleable. 7610 TextView_textColor); 7611 7612 if (colors == null) { 7613 int ap = attrs.getResourceId(com.android.internal.R.styleable. 7614 TextView_textAppearance, -1); 7615 if (ap != -1) { 7616 TypedArray appearance; 7617 appearance = context.obtainStyledAttributes(ap, 7618 com.android.internal.R.styleable.TextAppearance); 7619 colors = appearance.getColorStateList(com.android.internal.R.styleable. 7620 TextAppearance_textColor); 7621 appearance.recycle(); 7622 } 7623 } 7624 7625 return colors; 7626 } 7627 7628 /** 7629 * Returns the default color from the TextView_textColor attribute 7630 * from the AttributeSet, if set, or the default color from the 7631 * TextAppearance_textColor from the TextView_textAppearance attribute, 7632 * if TextView_textColor was not set directly. 7633 */ 7634 public static int getTextColor(Context context, 7635 TypedArray attrs, 7636 int def) { 7637 ColorStateList colors = getTextColors(context, attrs); 7638 7639 if (colors == null) { 7640 return def; 7641 } else { 7642 return colors.getDefaultColor(); 7643 } 7644 } 7645 7646 @Override 7647 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 7648 final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK; 7649 if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) { 7650 switch (keyCode) { 7651 case KeyEvent.KEYCODE_A: 7652 if (canSelectText()) { 7653 return onTextContextMenuItem(ID_SELECT_ALL); 7654 } 7655 break; 7656 case KeyEvent.KEYCODE_X: 7657 if (canCut()) { 7658 return onTextContextMenuItem(ID_CUT); 7659 } 7660 break; 7661 case KeyEvent.KEYCODE_C: 7662 if (canCopy()) { 7663 return onTextContextMenuItem(ID_COPY); 7664 } 7665 break; 7666 case KeyEvent.KEYCODE_V: 7667 if (canPaste()) { 7668 return onTextContextMenuItem(ID_PASTE); 7669 } 7670 break; 7671 } 7672 } 7673 return super.onKeyShortcut(keyCode, event); 7674 } 7675 7676 /** 7677 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 7678 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 7679 * a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient. 7680 */ 7681 private boolean canSelectText() { 7682 return hasSelectionController() && mText.length() != 0; 7683 } 7684 7685 /** 7686 * Test based on the <i>intrinsic</i> charateristics of the TextView. 7687 * The text must be spannable and the movement method must allow for arbitary selection. 7688 * 7689 * See also {@link #canSelectText()}. 7690 */ 7691 private boolean textCanBeSelected() { 7692 // prepareCursorController() relies on this method. 7693 // If you change this condition, make sure prepareCursorController is called anywhere 7694 // the value of this condition might be changed. 7695 return mText instanceof Spannable && mMovement != null && mMovement.canSelectArbitrarily(); 7696 } 7697 7698 private boolean canCut() { 7699 if (hasPasswordTransformationMethod()) { 7700 return false; 7701 } 7702 7703 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mInput != null) { 7704 return true; 7705 } 7706 7707 return false; 7708 } 7709 7710 private boolean canCopy() { 7711 if (hasPasswordTransformationMethod()) { 7712 return false; 7713 } 7714 7715 if (mText.length() > 0 && hasSelection()) { 7716 return true; 7717 } 7718 7719 return false; 7720 } 7721 7722 private boolean canPaste() { 7723 return (mText instanceof Editable && 7724 mInput != null && 7725 getSelectionStart() >= 0 && 7726 getSelectionEnd() >= 0 && 7727 ((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)). 7728 hasPrimaryClip()); 7729 } 7730 7731 private boolean isWordCharacter(int c, int type) { 7732 return (c == '\'' || c == '"' || 7733 type == Character.UPPERCASE_LETTER || 7734 type == Character.LOWERCASE_LETTER || 7735 type == Character.TITLECASE_LETTER || 7736 type == Character.MODIFIER_LETTER || 7737 type == Character.OTHER_LETTER || // Should handle asian characters 7738 type == Character.DECIMAL_DIGIT_NUMBER); 7739 } 7740 7741 /** 7742 * Returns the offsets delimiting the 'word' located at position offset. 7743 * 7744 * @param offset An offset in the text. 7745 * @return The offsets for the start and end of the word located at <code>offset</code>. 7746 * The two ints offsets are packed in a long using {@link #packRangeInLong(int, int)}. 7747 * Returns -1 if no valid word was found. 7748 */ 7749 private long getWordLimitsAt(int offset) { 7750 int klass = mInputType & InputType.TYPE_MASK_CLASS; 7751 int variation = mInputType & InputType.TYPE_MASK_VARIATION; 7752 7753 // Text selection is not permitted in password fields 7754 if (hasPasswordTransformationMethod()) { 7755 return -1; 7756 } 7757 7758 final int len = mText.length(); 7759 7760 // Specific text fields: always select the entire text 7761 if (klass == InputType.TYPE_CLASS_NUMBER || 7762 klass == InputType.TYPE_CLASS_PHONE || 7763 klass == InputType.TYPE_CLASS_DATETIME || 7764 variation == InputType.TYPE_TEXT_VARIATION_URI || 7765 variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS || 7766 variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS || 7767 variation == InputType.TYPE_TEXT_VARIATION_FILTER) { 7768 return len > 0 ? packRangeInLong(0, len) : -1; 7769 } 7770 7771 int end = Math.min(offset, len); 7772 if (end < 0) { 7773 return -1; 7774 } 7775 7776 final int MAX_LENGTH = 48; 7777 int start = end; 7778 7779 for (; start > 0; start--) { 7780 final char c = mTransformed.charAt(start - 1); 7781 final int type = Character.getType(c); 7782 if (start == end && type == Character.OTHER_PUNCTUATION) { 7783 // Cases where the text ends with a '.' and we select from the end of the line 7784 // (right after the dot), or when we select from the space character in "aaa, bbb". 7785 continue; 7786 } 7787 if (type == Character.SURROGATE) { // Two Character codepoint 7788 end = start - 1; // Recheck as a pair when scanning forward 7789 continue; 7790 } 7791 if (!isWordCharacter(c, type)) break; 7792 if ((end - start) > MAX_LENGTH) return -1; 7793 } 7794 7795 for (; end < len; end++) { 7796 final int c = Character.codePointAt(mTransformed, end); 7797 final int type = Character.getType(c); 7798 if (!isWordCharacter(c, type)) break; 7799 if ((end - start) > MAX_LENGTH) return -1; 7800 if (c > 0xFFFF) { // Two Character codepoint 7801 end++; 7802 } 7803 } 7804 7805 if (start == end) { 7806 return -1; 7807 } 7808 7809 // Two ints packed in a long 7810 return packRangeInLong(start, end); 7811 } 7812 7813 private static long packRangeInLong(int start, int end) { 7814 return (((long) start) << 32) | end; 7815 } 7816 7817 private static int extractRangeStartFromLong(long range) { 7818 return (int) (range >>> 32); 7819 } 7820 7821 private static int extractRangeEndFromLong(long range) { 7822 return (int) (range & 0x00000000FFFFFFFFL); 7823 } 7824 7825 private void selectAll() { 7826 Selection.setSelection((Spannable) mText, 0, mText.length()); 7827 } 7828 7829 private void selectCurrentWord() { 7830 if (!canSelectText()) { 7831 return; 7832 } 7833 7834 if (hasPasswordTransformationMethod()) { 7835 // Always select all on a password field. 7836 // Cut/copy menu entries are not available for passwords, but being able to select all 7837 // is however useful to delete or paste to replace the entire content. 7838 selectAll(); 7839 return; 7840 } 7841 7842 long lastTouchOffsets = getLastTouchOffsets(); 7843 final int minOffset = extractRangeStartFromLong(lastTouchOffsets); 7844 final int maxOffset = extractRangeEndFromLong(lastTouchOffsets); 7845 7846 int selectionStart, selectionEnd; 7847 7848 // If a URLSpan (web address, email, phone...) is found at that position, select it. 7849 URLSpan[] urlSpans = ((Spanned) mText).getSpans(minOffset, maxOffset, URLSpan.class); 7850 if (urlSpans.length == 1) { 7851 URLSpan url = urlSpans[0]; 7852 selectionStart = ((Spanned) mText).getSpanStart(url); 7853 selectionEnd = ((Spanned) mText).getSpanEnd(url); 7854 } else { 7855 long wordLimits = getWordLimitsAt(minOffset); 7856 if (wordLimits >= 0) { 7857 selectionStart = extractRangeStartFromLong(wordLimits); 7858 } else { 7859 selectionStart = Math.max(minOffset - 5, 0); 7860 } 7861 7862 wordLimits = getWordLimitsAt(maxOffset); 7863 if (wordLimits >= 0) { 7864 selectionEnd = extractRangeEndFromLong(wordLimits); 7865 } else { 7866 selectionEnd = Math.min(maxOffset + 5, mText.length()); 7867 } 7868 } 7869 7870 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 7871 } 7872 7873 private long getLastTouchOffsets() { 7874 int minOffset, maxOffset; 7875 7876 if (mContextMenuTriggeredByKey) { 7877 minOffset = getSelectionStart(); 7878 maxOffset = getSelectionEnd(); 7879 } else { 7880 SelectionModifierCursorController selectionController = getSelectionController(); 7881 minOffset = selectionController.getMinTouchOffset(); 7882 maxOffset = selectionController.getMaxTouchOffset(); 7883 } 7884 7885 return packRangeInLong(minOffset, maxOffset); 7886 } 7887 7888 @Override 7889 public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 7890 if (!isShown()) { 7891 return false; 7892 } 7893 7894 final boolean isPassword = hasPasswordTransformationMethod(); 7895 7896 if (!isPassword) { 7897 CharSequence text = getText(); 7898 if (TextUtils.isEmpty(text)) { 7899 text = getHint(); 7900 } 7901 if (!TextUtils.isEmpty(text)) { 7902 if (text.length() > AccessibilityEvent.MAX_TEXT_LENGTH) { 7903 text = text.subSequence(0, AccessibilityEvent.MAX_TEXT_LENGTH + 1); 7904 } 7905 event.getText().add(text); 7906 } 7907 } else { 7908 event.setPassword(isPassword); 7909 } 7910 return false; 7911 } 7912 7913 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 7914 int fromIndex, int removedCount, int addedCount) { 7915 AccessibilityEvent event = 7916 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 7917 event.setFromIndex(fromIndex); 7918 event.setRemovedCount(removedCount); 7919 event.setAddedCount(addedCount); 7920 event.setBeforeText(beforeText); 7921 sendAccessibilityEventUnchecked(event); 7922 } 7923 7924 @Override 7925 protected void onCreateContextMenu(ContextMenu menu) { 7926 super.onCreateContextMenu(menu); 7927 boolean added = false; 7928 mContextMenuTriggeredByKey = mDPadCenterIsDown || mEnterKeyIsDown; 7929 // Problem with context menu on long press: the menu appears while the key in down and when 7930 // the key is released, the view does not receive the key_up event. 7931 // We need two layers of flags: mDPadCenterIsDown and mEnterKeyIsDown are set in key down/up 7932 // events. We cannot simply clear these flags in onTextContextMenuItem since 7933 // it may not be called (if the user/ discards the context menu with the back key). 7934 // We clear these flags here and mContextMenuTriggeredByKey saves that state so that it is 7935 // available in onTextContextMenuItem. 7936 mDPadCenterIsDown = mEnterKeyIsDown = false; 7937 7938 MenuHandler handler = new MenuHandler(); 7939 7940 if (mText instanceof Spanned && hasSelectionController()) { 7941 long lastTouchOffset = getLastTouchOffsets(); 7942 final int selStart = extractRangeStartFromLong(lastTouchOffset); 7943 final int selEnd = extractRangeEndFromLong(lastTouchOffset); 7944 7945 URLSpan[] urls = ((Spanned) mText).getSpans(selStart, selEnd, URLSpan.class); 7946 if (urls.length > 0) { 7947 menu.add(0, ID_COPY_URL, 0, com.android.internal.R.string.copyUrl). 7948 setOnMenuItemClickListener(handler); 7949 7950 added = true; 7951 } 7952 } 7953 7954 // The context menu is not empty, which will prevent the selection mode from starting. 7955 // Add a entry to start it in the context menu. 7956 // TODO Does not handle the case where a subclass does not call super.thisMethod or 7957 // populates the menu AFTER this call. 7958 if (menu.size() > 0) { 7959 menu.add(0, ID_SELECTION_MODE, 0, com.android.internal.R.string.selectTextMode). 7960 setOnMenuItemClickListener(handler); 7961 added = true; 7962 } 7963 7964 if (added) { 7965 menu.setHeaderTitle(com.android.internal.R.string.editTextMenuTitle); 7966 } 7967 } 7968 7969 /** 7970 * Returns whether this text view is a current input method target. The 7971 * default implementation just checks with {@link InputMethodManager}. 7972 */ 7973 public boolean isInputMethodTarget() { 7974 InputMethodManager imm = InputMethodManager.peekInstance(); 7975 return imm != null && imm.isActive(this); 7976 } 7977 7978 // Selection context mode 7979 private static final int ID_SELECT_ALL = android.R.id.selectAll; 7980 private static final int ID_CUT = android.R.id.cut; 7981 private static final int ID_COPY = android.R.id.copy; 7982 private static final int ID_PASTE = android.R.id.paste; 7983 // Context menu entries 7984 private static final int ID_COPY_URL = android.R.id.copyUrl; 7985 private static final int ID_SELECTION_MODE = android.R.id.selectTextMode; 7986 7987 private class MenuHandler implements MenuItem.OnMenuItemClickListener { 7988 public boolean onMenuItemClick(MenuItem item) { 7989 return onTextContextMenuItem(item.getItemId()); 7990 } 7991 } 7992 7993 /** 7994 * Called when a context menu option for the text view is selected. Currently 7995 * this will be {@link android.R.id#copyUrl}, {@link android.R.id#selectTextMode}, 7996 * {@link android.R.id#selectAll}, {@link android.R.id#paste}, {@link android.R.id#cut} 7997 * or {@link android.R.id#copy}. 7998 */ 7999 public boolean onTextContextMenuItem(int id) { 8000 int min = 0; 8001 int max = mText.length(); 8002 8003 if (isFocused()) { 8004 final int selStart = getSelectionStart(); 8005 final int selEnd = getSelectionEnd(); 8006 8007 min = Math.max(0, Math.min(selStart, selEnd)); 8008 max = Math.max(0, Math.max(selStart, selEnd)); 8009 } 8010 8011 switch (id) { 8012 case ID_COPY_URL: 8013 URLSpan[] urls = ((Spanned) mText).getSpans(min, max, URLSpan.class); 8014 if (urls.length >= 1) { 8015 ClipData clip = null; 8016 for (int i=0; i<urls.length; i++) { 8017 Uri uri = Uri.parse(urls[0].getURL()); 8018 if (clip == null) { 8019 clip = ClipData.newRawUri(null, uri); 8020 } else { 8021 clip.addItem(new ClipData.Item(uri)); 8022 } 8023 } 8024 if (clip != null) { 8025 setPrimaryClip(clip); 8026 } 8027 } 8028 stopSelectionActionMode(); 8029 return true; 8030 8031 case ID_SELECTION_MODE: 8032 if (mSelectionActionMode != null) { 8033 // Selection mode is already started, simply change selected part. 8034 updateSelectedRegion(); 8035 } else { 8036 startSelectionActionMode(); 8037 } 8038 return true; 8039 8040 case ID_SELECT_ALL: 8041 // This does not enter text selection mode. Text is highlighted, so that it can be 8042 // bulk edited, like selectAllOnFocus does. 8043 selectAll(); 8044 return true; 8045 8046 case ID_PASTE: 8047 paste(min, max); 8048 return true; 8049 8050 case ID_CUT: 8051 setPrimaryClip(ClipData.newPlainText(null, mTransformed.subSequence(min, max))); 8052 ((Editable) mText).delete(min, max); 8053 stopSelectionActionMode(); 8054 return true; 8055 8056 case ID_COPY: 8057 setPrimaryClip(ClipData.newPlainText(null, mTransformed.subSequence(min, max))); 8058 stopSelectionActionMode(); 8059 return true; 8060 } 8061 return false; 8062 } 8063 8064 /** 8065 * Prepare text so that there are not zero or two spaces at beginning and end of region defined 8066 * by [min, max] when replacing this region by paste. 8067 * Note that if there were two spaces (or more) at that position before, they are kept. We just 8068 * make sure we do not add an extra one from the paste content. 8069 */ 8070 private long prepareSpacesAroundPaste(int min, int max, CharSequence paste) { 8071 if (paste.length() > 0) { 8072 if (min > 0) { 8073 final char charBefore = mTransformed.charAt(min - 1); 8074 final char charAfter = paste.charAt(0); 8075 8076 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8077 // Two spaces at beginning of paste: remove one 8078 final int originalLength = mText.length(); 8079 ((Editable) mText).delete(min - 1, min); 8080 // Due to filters, there is no guarantee that exactly one character was 8081 // removed: count instead. 8082 final int delta = mText.length() - originalLength; 8083 min += delta; 8084 max += delta; 8085 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8086 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8087 // No space at beginning of paste: add one 8088 final int originalLength = mText.length(); 8089 ((Editable) mText).replace(min, min, " "); 8090 // Taking possible filters into account as above. 8091 final int delta = mText.length() - originalLength; 8092 min += delta; 8093 max += delta; 8094 } 8095 } 8096 8097 if (max < mText.length()) { 8098 final char charBefore = paste.charAt(paste.length() - 1); 8099 final char charAfter = mTransformed.charAt(max); 8100 8101 if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) { 8102 // Two spaces at end of paste: remove one 8103 ((Editable) mText).delete(max, max + 1); 8104 } else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' && 8105 !Character.isSpaceChar(charAfter) && charAfter != '\n') { 8106 // No space at end of paste: add one 8107 ((Editable) mText).replace(max, max, " "); 8108 } 8109 } 8110 } 8111 8112 return packRangeInLong(min, max); 8113 } 8114 8115 private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) { 8116 TextView shadowView = (TextView) inflate(mContext, 8117 com.android.internal.R.layout.text_drag_thumbnail, null); 8118 8119 if (shadowView == null) { 8120 throw new IllegalArgumentException("Unable to inflate text drag thumbnail"); 8121 } 8122 8123 if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) { 8124 text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH); 8125 } 8126 shadowView.setText(text); 8127 shadowView.setTextColor(getTextColors()); 8128 8129 shadowView.setTextAppearance(mContext, R.styleable.Theme_textAppearanceLarge); 8130 shadowView.setGravity(Gravity.CENTER); 8131 8132 shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 8133 ViewGroup.LayoutParams.WRAP_CONTENT)); 8134 8135 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8136 shadowView.measure(size, size); 8137 8138 shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight()); 8139 shadowView.invalidate(); 8140 return new DragShadowBuilder(shadowView); 8141 } 8142 8143 private static class DragLocalState { 8144 public TextView sourceTextView; 8145 public int start, end; 8146 8147 public DragLocalState(TextView sourceTextView, int start, int end) { 8148 this.sourceTextView = sourceTextView; 8149 this.start = start; 8150 this.end = end; 8151 } 8152 } 8153 8154 @Override 8155 public boolean performLongClick() { 8156 if (super.performLongClick()) { 8157 mDiscardNextActionUp = true; 8158 return true; 8159 } 8160 8161 boolean handled = false; 8162 8163 // Long press in empty space moves cursor and shows the Paste affordance if available. 8164 if (!isPositionOnText(mLastDownPositionX, mLastDownPositionY) && 8165 mInsertionControllerEnabled) { 8166 final int offset = getOffset(mLastDownPositionX, mLastDownPositionY); 8167 stopSelectionActionMode(); 8168 Selection.setSelection((Spannable)mText, offset); 8169 getInsertionController().showWithPaste(); 8170 handled = true; 8171 } 8172 8173 if (!handled && mSelectionActionMode != null) { 8174 if (touchPositionIsInSelection()) { 8175 // Start a drag 8176 final int start = getSelectionStart(); 8177 final int end = getSelectionEnd(); 8178 CharSequence selectedText = mTransformed.subSequence(start, end); 8179 ClipData data = ClipData.newPlainText(null, selectedText); 8180 DragLocalState localState = new DragLocalState(this, start, end); 8181 startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0); 8182 stopSelectionActionMode(); 8183 } else { 8184 // New selection at touch position 8185 updateSelectedRegion(); 8186 } 8187 handled = true; 8188 } 8189 8190 // Start a new selection 8191 handled |= !handled && startSelectionActionMode(); 8192 8193 if (handled) { 8194 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 8195 mDiscardNextActionUp = true; 8196 } 8197 8198 return handled; 8199 } 8200 8201 /** 8202 * When selection mode is already started, this method simply updates the selected part of text 8203 * to the text under the finger. 8204 */ 8205 private void updateSelectedRegion() { 8206 // Start a new selection at current position, keep selectionAction mode on 8207 selectCurrentWord(); 8208 // Updates handles' positions 8209 getSelectionController().show(); 8210 } 8211 8212 private boolean touchPositionIsInSelection() { 8213 int selectionStart = getSelectionStart(); 8214 int selectionEnd = getSelectionEnd(); 8215 8216 if (selectionStart == selectionEnd) { 8217 return false; 8218 } 8219 8220 if (selectionStart > selectionEnd) { 8221 int tmp = selectionStart; 8222 selectionStart = selectionEnd; 8223 selectionEnd = tmp; 8224 Selection.setSelection((Spannable) mText, selectionStart, selectionEnd); 8225 } 8226 8227 SelectionModifierCursorController selectionController = getSelectionController(); 8228 int minOffset = selectionController.getMinTouchOffset(); 8229 int maxOffset = selectionController.getMaxTouchOffset(); 8230 8231 return ((minOffset >= selectionStart) && (maxOffset < selectionEnd)); 8232 } 8233 8234 /** 8235 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 8236 * selection is initiated in this View. 8237 * 8238 * The standard implementation populates the menu with a subset of Select All, Cut, Copy and 8239 * Paste actions, depending on what this View supports. 8240 * 8241 * A custom implementation can add new entries in the default menu in its 8242 * {@link ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The default actions 8243 * can also be removed from the menu using {@link Menu#removeItem(int)} and passing 8244 * {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy} or 8245 * {@link android.R.id#paste} ids as parameters. 8246 * 8247 * Returning false from {@link ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will 8248 * prevent the action mode from being started. 8249 * 8250 * Action click events should be handled by the custom implementation of 8251 * {@link ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}. 8252 * 8253 * Note that text selection mode is not started when a TextView receives focus and the 8254 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 8255 * that case, to allow for quick replacement. 8256 */ 8257 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 8258 mCustomSelectionActionModeCallback = actionModeCallback; 8259 } 8260 8261 /** 8262 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 8263 * 8264 * @return The current custom selection callback. 8265 */ 8266 public ActionMode.Callback getCustomSelectionActionModeCallback() { 8267 return mCustomSelectionActionModeCallback; 8268 } 8269 8270 /** 8271 * 8272 * @return true if the selection mode was actually started. 8273 */ 8274 private boolean startSelectionActionMode() { 8275 if (mSelectionActionMode != null) { 8276 // Selection action mode is already started 8277 return false; 8278 } 8279 8280 if (!canSelectText() || !requestFocus()) { 8281 Log.w(LOG_TAG, "TextView does not support text selection. Action mode cancelled."); 8282 return false; 8283 } 8284 8285 if (!hasSelection()) { 8286 // If selection mode is started after a device rotation, there is already a selection. 8287 selectCurrentWord(); 8288 } 8289 8290 ActionMode.Callback actionModeCallback = new SelectionActionModeCallback(); 8291 mSelectionActionMode = startActionMode(actionModeCallback); 8292 final boolean selectionStarted = mSelectionActionMode != null; 8293 8294 if (selectionStarted && !mTextIsSelectable) { 8295 // Show the IME to be able to replace text, except when selecting non editable text. 8296 final InputMethodManager imm = InputMethodManager.peekInstance(); 8297 if (imm != null) imm.showSoftInput(this, 0, null); 8298 } 8299 8300 return selectionStarted; 8301 } 8302 8303 private void stopSelectionActionMode() { 8304 if (mSelectionActionMode != null) { 8305 // This will hide the mSelectionModifierCursorController 8306 mSelectionActionMode.finish(); 8307 } 8308 } 8309 8310 /** 8311 * Paste clipboard content between min and max positions. 8312 */ 8313 private void paste(int min, int max) { 8314 ClipboardManager clipboard = 8315 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 8316 ClipData clip = clipboard.getPrimaryClip(); 8317 if (clip != null) { 8318 boolean didfirst = false; 8319 for (int i=0; i<clip.getItemCount(); i++) { 8320 CharSequence paste = clip.getItemAt(i).coerceToText(getContext()); 8321 if (paste != null) { 8322 if (!didfirst) { 8323 long minMax = prepareSpacesAroundPaste(min, max, paste); 8324 min = extractRangeStartFromLong(minMax); 8325 max = extractRangeEndFromLong(minMax); 8326 Selection.setSelection((Spannable) mText, max); 8327 ((Editable) mText).replace(min, max, paste); 8328 } else { 8329 ((Editable) mText).insert(getSelectionEnd(), "\n"); 8330 ((Editable) mText).insert(getSelectionEnd(), paste); 8331 } 8332 } 8333 } 8334 stopSelectionActionMode(); 8335 sLastCutOrCopyTime = 0; 8336 } 8337 } 8338 8339 private void setPrimaryClip(ClipData clip) { 8340 ClipboardManager clipboard = (ClipboardManager) getContext(). 8341 getSystemService(Context.CLIPBOARD_SERVICE); 8342 clipboard.setPrimaryClip(clip); 8343 sLastCutOrCopyTime = SystemClock.uptimeMillis(); 8344 } 8345 8346 /** 8347 * An ActionMode Callback class that is used to provide actions while in text selection mode. 8348 * 8349 * The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending 8350 * on which of these this TextView supports. 8351 */ 8352 private class SelectionActionModeCallback implements ActionMode.Callback { 8353 8354 @Override 8355 public boolean onCreateActionMode(ActionMode mode, Menu menu) { 8356 TypedArray styledAttributes = mContext.obtainStyledAttributes(R.styleable.Theme); 8357 8358 mode.setTitle(mContext.getString(com.android.internal.R.string.textSelectionCABTitle)); 8359 mode.setSubtitle(null); 8360 8361 menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll). 8362 setAlphabeticShortcut('a'). 8363 setShowAsAction( 8364 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8365 8366 if (canCut()) { 8367 menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut). 8368 setIcon(styledAttributes.getResourceId( 8369 R.styleable.Theme_actionModeCutDrawable, 0)). 8370 setAlphabeticShortcut('x'). 8371 setShowAsAction( 8372 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8373 } 8374 8375 if (canCopy()) { 8376 menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy). 8377 setIcon(styledAttributes.getResourceId( 8378 R.styleable.Theme_actionModeCopyDrawable, 0)). 8379 setAlphabeticShortcut('c'). 8380 setShowAsAction( 8381 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8382 } 8383 8384 if (canPaste()) { 8385 menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste). 8386 setIcon(styledAttributes.getResourceId( 8387 R.styleable.Theme_actionModePasteDrawable, 0)). 8388 setAlphabeticShortcut('v'). 8389 setShowAsAction( 8390 MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 8391 } 8392 8393 styledAttributes.recycle(); 8394 8395 if (mCustomSelectionActionModeCallback != null) { 8396 if (!mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) { 8397 // The custom mode can choose to cancel the action mode 8398 return false; 8399 } 8400 } 8401 8402 if (menu.hasVisibleItems() || mode.getCustomView() != null) { 8403 getSelectionController().show(); 8404 return true; 8405 } else { 8406 return false; 8407 } 8408 } 8409 8410 @Override 8411 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 8412 if (mCustomSelectionActionModeCallback != null) { 8413 return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu); 8414 } 8415 return true; 8416 } 8417 8418 @Override 8419 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 8420 if (mCustomSelectionActionModeCallback != null && 8421 mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) { 8422 return true; 8423 } 8424 return onTextContextMenuItem(item.getItemId()); 8425 } 8426 8427 @Override 8428 public void onDestroyActionMode(ActionMode mode) { 8429 if (mCustomSelectionActionModeCallback != null) { 8430 mCustomSelectionActionModeCallback.onDestroyActionMode(mode); 8431 } 8432 Selection.setSelection((Spannable) mText, getSelectionEnd()); 8433 8434 if (mSelectionModifierCursorController != null) { 8435 mSelectionModifierCursorController.hide(); 8436 } 8437 8438 mSelectionActionMode = null; 8439 } 8440 } 8441 8442 private class PastePopupMenu implements OnClickListener { 8443 private final PopupWindow mContainer; 8444 private int mPositionX; 8445 private int mPositionY; 8446 private final View[] mPasteViews = new View[4]; 8447 private final int[] mPasteViewLayouts = new int[] { 8448 mTextEditPasteWindowLayout, mTextEditNoPasteWindowLayout, 8449 mTextEditSidePasteWindowLayout, mTextEditSideNoPasteWindowLayout }; 8450 8451 public PastePopupMenu() { 8452 mContainer = new PopupWindow(TextView.this.mContext, null, 8453 com.android.internal.R.attr.textSelectHandleWindowStyle); 8454 mContainer.setSplitTouchEnabled(true); 8455 mContainer.setClippingEnabled(false); 8456 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8457 8458 mContainer.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT); 8459 mContainer.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); 8460 } 8461 8462 private int viewIndex(boolean onTop) { 8463 return (onTop ? 0 : 1<<1) + (canPaste() ? 0 : 1<<0); 8464 } 8465 8466 private void updateContent(boolean onTop) { 8467 final int viewIndex = viewIndex(onTop); 8468 View view = mPasteViews[viewIndex]; 8469 8470 if (view == null) { 8471 final int layout = mPasteViewLayouts[viewIndex]; 8472 LayoutInflater inflater = (LayoutInflater)TextView.this.mContext. 8473 getSystemService(Context.LAYOUT_INFLATER_SERVICE); 8474 if (inflater != null) { 8475 view = inflater.inflate(layout, null); 8476 } 8477 8478 if (view == null) { 8479 throw new IllegalArgumentException("Unable to inflate TextEdit paste window"); 8480 } 8481 8482 final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); 8483 view.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 8484 ViewGroup.LayoutParams.WRAP_CONTENT)); 8485 view.measure(size, size); 8486 8487 view.setOnClickListener(this); 8488 8489 mPasteViews[viewIndex] = view; 8490 } 8491 8492 mContainer.setContentView(view); 8493 } 8494 8495 public void show() { 8496 updateContent(true); 8497 positionAtCursor(); 8498 } 8499 8500 public void hide() { 8501 mContainer.dismiss(); 8502 } 8503 8504 public boolean isShowing() { 8505 return mContainer.isShowing(); 8506 } 8507 8508 @Override 8509 public void onClick(View v) { 8510 if (canPaste()) { 8511 paste(getSelectionStart(), getSelectionEnd()); 8512 } 8513 hide(); 8514 } 8515 8516 void positionAtCursor() { 8517 View contentView = mContainer.getContentView(); 8518 int width = contentView.getMeasuredWidth(); 8519 int height = contentView.getMeasuredHeight(); 8520 final int offset = TextView.this.getSelectionStart(); 8521 final int line = mLayout.getLineForOffset(offset); 8522 final int lineTop = mLayout.getLineTop(line); 8523 float primaryHorizontal = mLayout.getPrimaryHorizontal(offset); 8524 8525 final Rect bounds = sCursorControllerTempRect; 8526 bounds.left = (int) (primaryHorizontal - width / 2.0f); 8527 bounds.top = lineTop - height; 8528 8529 bounds.right = bounds.left + width; 8530 bounds.bottom = bounds.top + height; 8531 8532 convertFromViewportToContentCoordinates(bounds); 8533 8534 mPositionX = bounds.left; 8535 mPositionY = bounds.top; 8536 8537 8538 final int[] coords = mTempCoords; 8539 TextView.this.getLocationInWindow(coords); 8540 coords[0] += mPositionX; 8541 coords[1] += mPositionY; 8542 8543 final int screenWidth = mContext.getResources().getDisplayMetrics().widthPixels; 8544 if (coords[1] < 0) { 8545 updateContent(false); 8546 // Update dimensions from new view 8547 contentView = mContainer.getContentView(); 8548 width = contentView.getMeasuredWidth(); 8549 height = contentView.getMeasuredHeight(); 8550 8551 // Vertical clipping, move under edited line and to the side of insertion cursor 8552 // TODO bottom clipping in case there is no system bar 8553 coords[1] += height; 8554 final int lineBottom = mLayout.getLineBottom(line); 8555 final int lineHeight = lineBottom - lineTop; 8556 coords[1] += lineHeight; 8557 8558 // Move to right hand side of insertion cursor by default. TODO RTL text. 8559 final Drawable handle = mContext.getResources().getDrawable(mTextSelectHandleRes); 8560 final int handleHalfWidth = handle.getIntrinsicWidth() / 2; 8561 8562 if (primaryHorizontal + handleHalfWidth + width < screenWidth) { 8563 coords[0] += handleHalfWidth + width / 2; 8564 } else { 8565 coords[0] -= handleHalfWidth + width / 2; 8566 } 8567 } else { 8568 // Horizontal clipping 8569 coords[0] = Math.max(0, coords[0]); 8570 coords[0] = Math.min(screenWidth - width, coords[0]); 8571 } 8572 8573 mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY, coords[0], coords[1]); 8574 } 8575 } 8576 8577 private abstract class HandleView extends View implements ViewTreeObserver.OnPreDrawListener { 8578 protected Drawable mDrawable; 8579 private final PopupWindow mContainer; 8580 // Position with respect to the parent TextView 8581 private int mPositionX, mPositionY; 8582 private boolean mIsDragging; 8583 // Offset from touch position to mPosition 8584 private float mTouchToWindowOffsetX, mTouchToWindowOffsetY; 8585 protected float mHotspotX; 8586 // Offsets the hotspot point up, so that cursor is not hidden by the finger when moving up 8587 private float mTouchOffsetY; 8588 // Where the touch position should be on the handle to ensure a maximum cursor visibility 8589 private float mIdealVerticalOffset; 8590 // Parent's (TextView) position in window 8591 private int mLastParentX, mLastParentY; 8592 // PopupWindow container absolute position with respect to the enclosing window 8593 private int mContainerPositionX, mContainerPositionY; 8594 // Visible or not (scrolled off screen), whether or not this handle should be visible 8595 private boolean mIsActive = false; 8596 8597 public HandleView() { 8598 super(TextView.this.mContext); 8599 mContainer = new PopupWindow(TextView.this.mContext, null, 8600 com.android.internal.R.attr.textSelectHandleWindowStyle); 8601 mContainer.setSplitTouchEnabled(true); 8602 mContainer.setClippingEnabled(false); 8603 mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL); 8604 mContainer.setContentView(this); 8605 8606 initDrawable(); 8607 8608 final int handleHeight = mDrawable.getIntrinsicHeight(); 8609 mTouchOffsetY = -0.3f * handleHeight; 8610 mIdealVerticalOffset = 0.7f * handleHeight; 8611 } 8612 8613 protected abstract void initDrawable(); 8614 8615 // Touch-up filter: number of previous positions remembered 8616 private static final int HISTORY_SIZE = 5; 8617 private static final int TOUCH_UP_FILTER_DELAY_AFTER = 150; 8618 private static final int TOUCH_UP_FILTER_DELAY_BEFORE = 350; 8619 private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE]; 8620 private final int[] mPreviousOffsets = new int[HISTORY_SIZE]; 8621 private int mPreviousOffsetIndex = 0; 8622 private int mNumberPreviousOffsets = 0; 8623 8624 private void startTouchUpFilter(int offset) { 8625 mNumberPreviousOffsets = 0; 8626 addPositionToTouchUpFilter(offset); 8627 } 8628 8629 private void addPositionToTouchUpFilter(int offset) { 8630 if (mNumberPreviousOffsets > 0 && 8631 mPreviousOffsets[mPreviousOffsetIndex] == offset) { 8632 // Make sure only actual changes of position are recorded. 8633 return; 8634 } 8635 8636 mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE; 8637 mPreviousOffsets[mPreviousOffsetIndex] = offset; 8638 mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis(); 8639 mNumberPreviousOffsets++; 8640 } 8641 8642 private void filterOnTouchUp() { 8643 final long now = SystemClock.uptimeMillis(); 8644 int i = 0; 8645 int index = mPreviousOffsetIndex; 8646 final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE); 8647 while (i < iMax && (now - mPreviousOffsetsTimes[index]) < TOUCH_UP_FILTER_DELAY_AFTER) { 8648 i++; 8649 index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE; 8650 } 8651 8652 if (i > 0 && i < iMax && 8653 (now - mPreviousOffsetsTimes[index]) > TOUCH_UP_FILTER_DELAY_BEFORE) { 8654 updateOffset(mPreviousOffsets[index]); 8655 } 8656 } 8657 8658 @Override 8659 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 8660 setMeasuredDimension(mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight()); 8661 } 8662 8663 public void show() { 8664 updateContainerPosition(); 8665 if (isShowing()) { 8666 mContainer.update(mContainerPositionX, mContainerPositionY, 8667 mRight - mLeft, mBottom - mTop); 8668 8669 hideAssociatedPopupWindow(); 8670 } else { 8671 mContainer.showAtLocation(TextView.this, 0, 8672 mContainerPositionX, mContainerPositionY); 8673 8674 mIsActive = true; 8675 8676 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 8677 vto.addOnPreDrawListener(this); 8678 } 8679 } 8680 8681 protected void dismiss() { 8682 mIsDragging = false; 8683 mContainer.dismiss(); 8684 hideAssociatedPopupWindow(); 8685 } 8686 8687 public void hide() { 8688 dismiss(); 8689 8690 mIsActive = false; 8691 8692 ViewTreeObserver vto = TextView.this.getViewTreeObserver(); 8693 vto.removeOnPreDrawListener(this); 8694 } 8695 8696 public boolean isShowing() { 8697 return mContainer.isShowing(); 8698 } 8699 8700 private boolean isPositionVisible() { 8701 // Always show a dragging handle. 8702 if (mIsDragging) { 8703 return true; 8704 } 8705 8706 if (isInBatchEditMode()) { 8707 return false; 8708 } 8709 8710 final int extendedPaddingTop = getExtendedPaddingTop(); 8711 final int extendedPaddingBottom = getExtendedPaddingBottom(); 8712 final int compoundPaddingLeft = getCompoundPaddingLeft(); 8713 final int compoundPaddingRight = getCompoundPaddingRight(); 8714 8715 final TextView hostView = TextView.this; 8716 8717 if (mTempRect == null) mTempRect = new Rect(); 8718 final Rect clip = mTempRect; 8719 clip.left = compoundPaddingLeft; 8720 clip.top = extendedPaddingTop; 8721 clip.right = hostView.getWidth() - compoundPaddingRight; 8722 clip.bottom = hostView.getHeight() - extendedPaddingBottom; 8723 8724 final ViewParent parent = hostView.getParent(); 8725 if (parent == null || !parent.getChildVisibleRect(hostView, clip, null)) { 8726 return false; 8727 } 8728 8729 final int[] coords = mTempCoords; 8730 hostView.getLocationInWindow(coords); 8731 final int posX = coords[0] + mPositionX + (int) mHotspotX; 8732 final int posY = coords[1] + mPositionY; 8733 8734 // Offset by 1 to take into account 0.5 and int rounding around getPrimaryHorizontal. 8735 return posX >= clip.left - 1 && posX <= clip.right + 1 && 8736 posY >= clip.top && posY <= clip.bottom; 8737 } 8738 8739 private void moveTo(int x, int y) { 8740 mPositionX = x - TextView.this.mScrollX; 8741 mPositionY = y - TextView.this.mScrollY; 8742 8743 if (mIsDragging) { 8744 TextView.this.getLocationInWindow(mTempCoords); 8745 if (mTempCoords[0] != mLastParentX || mTempCoords[1] != mLastParentY) { 8746 mTouchToWindowOffsetX += mTempCoords[0] - mLastParentX; 8747 mTouchToWindowOffsetY += mTempCoords[1] - mLastParentY; 8748 mLastParentX = mTempCoords[0]; 8749 mLastParentY = mTempCoords[1]; 8750 } 8751 8752 hideAssociatedPopupWindow(); 8753 } 8754 } 8755 8756 public abstract int getCurrentCursorOffset(); 8757 8758 public abstract void updateOffset(int offset); 8759 8760 public abstract void updatePosition(int x, int y); 8761 8762 protected void positionAtCursorOffset(int offset) { 8763 addPositionToTouchUpFilter(offset); 8764 final int width = mDrawable.getIntrinsicWidth(); 8765 final int height = mDrawable.getIntrinsicHeight(); 8766 final int line = mLayout.getLineForOffset(offset); 8767 final int lineBottom = mLayout.getLineBottom(line); 8768 8769 final Rect bounds = sCursorControllerTempRect; 8770 bounds.left = (int) (mLayout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX) + 8771 TextView.this.mScrollX; 8772 bounds.top = lineBottom + TextView.this.mScrollY; 8773 8774 bounds.right = bounds.left + width; 8775 bounds.bottom = bounds.top + height; 8776 8777 convertFromViewportToContentCoordinates(bounds); 8778 moveTo(bounds.left, bounds.top); 8779 } 8780 8781 /** 8782 * Updates the global container's position. 8783 * @return whether or not the position has actually changed 8784 */ 8785 private boolean updateContainerPosition() { 8786 positionAtCursorOffset(getCurrentCursorOffset()); 8787 TextView.this.getLocationInWindow(mTempCoords); 8788 final int containerPositionX = mTempCoords[0] + mPositionX; 8789 final int containerPositionY = mTempCoords[1] + mPositionY; 8790 8791 if (containerPositionX != mContainerPositionX || 8792 containerPositionY != mContainerPositionY) { 8793 mContainerPositionX = containerPositionX; 8794 mContainerPositionY = containerPositionY; 8795 return true; 8796 } 8797 return false; 8798 } 8799 8800 public boolean onPreDraw() { 8801 if (updateContainerPosition()) { 8802 if (isPositionVisible()) { 8803 mContainer.update(mContainerPositionX, mContainerPositionY, 8804 mRight - mLeft, mBottom - mTop); 8805 8806 if (mIsActive && !isShowing()) { 8807 show(); 8808 } 8809 } else { 8810 if (isShowing()) { 8811 dismiss(); 8812 } 8813 } 8814 8815 // Hide paste popup as soon as the view is scrolled or moved 8816 hideAssociatedPopupWindow(); 8817 } 8818 return true; 8819 } 8820 8821 @Override 8822 protected void onDraw(Canvas c) { 8823 mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop); 8824 mDrawable.draw(c); 8825 } 8826 8827 @Override 8828 public boolean onTouchEvent(MotionEvent ev) { 8829 switch (ev.getActionMasked()) { 8830 case MotionEvent.ACTION_DOWN: { 8831 startTouchUpFilter(getCurrentCursorOffset()); 8832 mTouchToWindowOffsetX = ev.getRawX() - mPositionX; 8833 mTouchToWindowOffsetY = ev.getRawY() - mPositionY; 8834 8835 final int[] coords = mTempCoords; 8836 TextView.this.getLocationInWindow(coords); 8837 mLastParentX = coords[0]; 8838 mLastParentY = coords[1]; 8839 mIsDragging = true; 8840 break; 8841 } 8842 8843 case MotionEvent.ACTION_MOVE: { 8844 final float rawX = ev.getRawX(); 8845 final float rawY = ev.getRawY(); 8846 8847 // Vertical hysteresis: vertical down movement tends to snap to ideal offset 8848 final float previousVerticalOffset = mTouchToWindowOffsetY - mLastParentY; 8849 final float currentVerticalOffset = rawY - mPositionY - mLastParentY; 8850 float newVerticalOffset; 8851 if (previousVerticalOffset < mIdealVerticalOffset) { 8852 newVerticalOffset = Math.min(currentVerticalOffset, mIdealVerticalOffset); 8853 newVerticalOffset = Math.max(newVerticalOffset, previousVerticalOffset); 8854 } else { 8855 newVerticalOffset = Math.max(currentVerticalOffset, mIdealVerticalOffset); 8856 newVerticalOffset = Math.min(newVerticalOffset, previousVerticalOffset); 8857 } 8858 mTouchToWindowOffsetY = newVerticalOffset + mLastParentY; 8859 8860 final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX; 8861 final float newPosY = rawY - mTouchToWindowOffsetY + mTouchOffsetY; 8862 8863 updatePosition(Math.round(newPosX), Math.round(newPosY)); 8864 break; 8865 } 8866 8867 case MotionEvent.ACTION_UP: 8868 filterOnTouchUp(); 8869 mIsDragging = false; 8870 break; 8871 8872 case MotionEvent.ACTION_CANCEL: 8873 mIsDragging = false; 8874 break; 8875 } 8876 return true; 8877 } 8878 8879 public boolean isDragging() { 8880 return mIsDragging; 8881 } 8882 8883 void hideAssociatedPopupWindow() { 8884 // No associated popup window by default 8885 } 8886 8887 public void onDetached() { 8888 // Should be overriden to clean possible Runnable 8889 } 8890 } 8891 8892 private class InsertionHandleView extends HandleView { 8893 private static final int DELAY_BEFORE_FADE_OUT = 4000; 8894 private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds 8895 8896 // Used to detect taps on the insertion handle, which will affect the PastePopupMenu 8897 private long mTouchTimer; 8898 private float mDownPositionX, mDownPositionY; 8899 private PastePopupMenu mPastePopupWindow; 8900 private Runnable mHider; 8901 private Runnable mPastePopupShower; 8902 8903 public InsertionHandleView() { 8904 super(); 8905 } 8906 8907 @Override 8908 public void show() { 8909 super.show(); 8910 hideDelayed(); 8911 removePastePopupCallback(); 8912 } 8913 8914 public void show(int delayBeforePaste) { 8915 show(); 8916 8917 final long durationSinceCutOrCopy = SystemClock.uptimeMillis() - sLastCutOrCopyTime; 8918 if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) { 8919 delayBeforePaste = 0; 8920 } 8921 if (delayBeforePaste == 0 || canPaste()) { 8922 if (mPastePopupShower == null) { 8923 mPastePopupShower = new Runnable() { 8924 public void run() { 8925 showAssociatedPopupWindow(); 8926 } 8927 }; 8928 } 8929 postDelayed(mPastePopupShower, delayBeforePaste); 8930 } 8931 } 8932 8933 @Override 8934 protected void dismiss() { 8935 super.dismiss(); 8936 onDetached(); 8937 } 8938 8939 @Override 8940 public void hide() { 8941 super.hide(); 8942 } 8943 8944 private void hideDelayed() { 8945 removeHiderCallback(); 8946 if (mHider == null) { 8947 mHider = new Runnable() { 8948 public void run() { 8949 hide(); 8950 } 8951 }; 8952 } 8953 postDelayed(mHider, DELAY_BEFORE_FADE_OUT); 8954 } 8955 8956 private void removePastePopupCallback() { 8957 if (mPastePopupShower != null) { 8958 removeCallbacks(mPastePopupShower); 8959 } 8960 } 8961 8962 private void removeHiderCallback() { 8963 if (mHider != null) { 8964 removeCallbacks(mHider); 8965 } 8966 } 8967 8968 @Override 8969 protected void initDrawable() { 8970 if (mSelectHandleCenter == null) { 8971 mSelectHandleCenter = mContext.getResources().getDrawable( 8972 mTextSelectHandleRes); 8973 } 8974 mDrawable = mSelectHandleCenter; 8975 mHotspotX = mDrawable.getIntrinsicWidth() / 2.0f; 8976 } 8977 8978 @Override 8979 public boolean onTouchEvent(MotionEvent ev) { 8980 final boolean result = super.onTouchEvent(ev); 8981 8982 switch (ev.getActionMasked()) { 8983 case MotionEvent.ACTION_DOWN: 8984 mDownPositionX = ev.getRawX(); 8985 mDownPositionY = ev.getRawY(); 8986 mTouchTimer = SystemClock.uptimeMillis(); 8987 break; 8988 8989 case MotionEvent.ACTION_UP: 8990 long delay = SystemClock.uptimeMillis() - mTouchTimer; 8991 if (delay < ViewConfiguration.getTapTimeout()) { 8992 final float deltaX = mDownPositionX - ev.getRawX(); 8993 final float deltaY = mDownPositionY - ev.getRawY(); 8994 final float distanceSquared = deltaX * deltaX + deltaY * deltaY; 8995 if (distanceSquared < mSquaredTouchSlopDistance) { 8996 if (mPastePopupWindow != null && mPastePopupWindow.isShowing()) { 8997 // Tapping on the handle dismisses the displayed paste view, 8998 mPastePopupWindow.hide(); 8999 } else { 9000 show(0); 9001 } 9002 } 9003 } 9004 break; 9005 9006 default: 9007 break; 9008 } 9009 9010 return result; 9011 } 9012 9013 @Override 9014 public int getCurrentCursorOffset() { 9015 return TextView.this.getSelectionStart(); 9016 } 9017 9018 @Override 9019 public void updateOffset(int offset) { 9020 Selection.setSelection((Spannable) mText, offset); 9021 positionAtCursorOffset(offset); 9022 } 9023 9024 @Override 9025 public void updatePosition(int x, int y) { 9026 final int previousOffset = getCurrentCursorOffset(); 9027 final int newOffset = getOffset(x, y); 9028 9029 if (newOffset != previousOffset) { 9030 updateOffset(newOffset); 9031 removePastePopupCallback(); 9032 } 9033 hideDelayed(); 9034 } 9035 9036 void showAssociatedPopupWindow() { 9037 if (mPastePopupWindow == null) { 9038 // Lazy initialisation: create when actually shown only. 9039 mPastePopupWindow = new PastePopupMenu(); 9040 } 9041 mPastePopupWindow.show(); 9042 } 9043 9044 @Override 9045 void hideAssociatedPopupWindow() { 9046 if (mPastePopupWindow != null) { 9047 mPastePopupWindow.hide(); 9048 } 9049 } 9050 9051 @Override 9052 public void onDetached() { 9053 removeHiderCallback(); 9054 removePastePopupCallback(); 9055 } 9056 } 9057 9058 private class SelectionStartHandleView extends HandleView { 9059 public SelectionStartHandleView() { 9060 super(); 9061 } 9062 9063 @Override 9064 protected void initDrawable() { 9065 if (mSelectHandleLeft == null) { 9066 mSelectHandleLeft = mContext.getResources().getDrawable( 9067 mTextSelectHandleLeftRes); 9068 } 9069 mDrawable = mSelectHandleLeft; 9070 mHotspotX = mDrawable.getIntrinsicWidth() * 3.0f / 4.0f; 9071 } 9072 9073 @Override 9074 public int getCurrentCursorOffset() { 9075 return TextView.this.getSelectionStart(); 9076 } 9077 9078 @Override 9079 public void updateOffset(int offset) { 9080 Selection.setSelection((Spannable) mText, offset, getSelectionEnd()); 9081 positionAtCursorOffset(offset); 9082 } 9083 9084 @Override 9085 public void updatePosition(int x, int y) { 9086 final int selectionStart = getSelectionStart(); 9087 final int selectionEnd = getSelectionEnd(); 9088 9089 int offset = getOffset(x, y); 9090 9091 // No need to redraw when the offset is unchanged 9092 if (offset == selectionStart) return; 9093 // Handles can not cross and selection is at least one character 9094 if (offset >= selectionEnd) offset = selectionEnd - 1; 9095 9096 Selection.setSelection((Spannable) mText, offset, selectionEnd); 9097 positionAtCursorOffset(offset); 9098 } 9099 } 9100 9101 private class SelectionEndHandleView extends HandleView { 9102 public SelectionEndHandleView() { 9103 super(); 9104 } 9105 9106 @Override 9107 protected void initDrawable() { 9108 if (mSelectHandleRight == null) { 9109 mSelectHandleRight = mContext.getResources().getDrawable( 9110 mTextSelectHandleRightRes); 9111 } 9112 mDrawable = mSelectHandleRight; 9113 mHotspotX = mDrawable.getIntrinsicWidth() / 4.0f; 9114 } 9115 9116 @Override 9117 public int getCurrentCursorOffset() { 9118 return TextView.this.getSelectionEnd(); 9119 } 9120 9121 @Override 9122 public void updateOffset(int offset) { 9123 Selection.setSelection((Spannable) mText, getSelectionStart(), offset); 9124 positionAtCursorOffset(offset); 9125 } 9126 9127 @Override 9128 public void updatePosition(int x, int y) { 9129 final int selectionStart = getSelectionStart(); 9130 final int selectionEnd = getSelectionEnd(); 9131 9132 int offset = getOffset(x, y); 9133 9134 // No need to redraw when the offset is unchanged 9135 if (offset == selectionEnd) return; 9136 // Handles can not cross and selection is at least one character 9137 if (offset <= selectionStart) offset = selectionStart + 1; 9138 9139 Selection.setSelection((Spannable) mText, selectionStart, offset); 9140 positionAtCursorOffset(offset); 9141 } 9142 } 9143 9144 /** 9145 * A CursorController instance can be used to control a cursor in the text. 9146 * It is not used outside of {@link TextView}. 9147 * @hide 9148 */ 9149 private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener { 9150 /** 9151 * Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}. 9152 * See also {@link #hide()}. 9153 */ 9154 public void show(); 9155 9156 /** 9157 * Hide the cursor controller from screen. 9158 * See also {@link #show()}. 9159 */ 9160 public void hide(); 9161 9162 /** 9163 * This method is called by {@link #onTouchEvent(MotionEvent)} and gives the controller 9164 * a chance to become active and/or visible. 9165 * @param event The touch event 9166 */ 9167 public boolean onTouchEvent(MotionEvent event); 9168 9169 /** 9170 * Called when the view is detached from window. Perform house keeping task, such as 9171 * stopping Runnable thread that would otherwise keep a reference on the context, thus 9172 * preventing the activity from being recycled. 9173 */ 9174 public void onDetached(); 9175 } 9176 9177 private class InsertionPointCursorController implements CursorController { 9178 private static final int DELAY_BEFORE_PASTE = 2000; 9179 9180 private InsertionHandleView mHandle; 9181 9182 public void show() { 9183 ((InsertionHandleView) getHandle()).show(DELAY_BEFORE_PASTE); 9184 } 9185 9186 public void showWithPaste() { 9187 ((InsertionHandleView) getHandle()).show(0); 9188 } 9189 9190 public void hide() { 9191 if (mHandle != null) { 9192 mHandle.hide(); 9193 } 9194 } 9195 9196 public boolean onTouchEvent(MotionEvent ev) { 9197 return false; 9198 } 9199 9200 public void onTouchModeChanged(boolean isInTouchMode) { 9201 if (!isInTouchMode) { 9202 hide(); 9203 } 9204 } 9205 9206 private HandleView getHandle() { 9207 if (mHandle == null) { 9208 mHandle = new InsertionHandleView(); 9209 } 9210 return mHandle; 9211 } 9212 9213 @Override 9214 public void onDetached() { 9215 if (mHandle == null) mHandle.onDetached(); 9216 } 9217 } 9218 9219 private class SelectionModifierCursorController implements CursorController { 9220 // The cursor controller handles, lazily created when shown. 9221 private SelectionStartHandleView mStartHandle; 9222 private SelectionEndHandleView mEndHandle; 9223 // The offsets of that last touch down event. Remembered to start selection there. 9224 private int mMinTouchOffset, mMaxTouchOffset; 9225 9226 // Double tap detection 9227 private long mPreviousTapUpTime = 0; 9228 private int mPreviousTapPositionX, mPreviousTapPositionY; 9229 9230 SelectionModifierCursorController() { 9231 resetTouchOffsets(); 9232 } 9233 9234 public void show() { 9235 if (isInBatchEditMode()) { 9236 return; 9237 } 9238 9239 // Lazy object creation has to be done before updatePosition() is called. 9240 if (mStartHandle == null) mStartHandle = new SelectionStartHandleView(); 9241 if (mEndHandle == null) mEndHandle = new SelectionEndHandleView(); 9242 9243 mStartHandle.show(); 9244 mEndHandle.show(); 9245 9246 hideInsertionPointCursorController(); 9247 } 9248 9249 public void hide() { 9250 if (mStartHandle != null) mStartHandle.hide(); 9251 if (mEndHandle != null) mEndHandle.hide(); 9252 } 9253 9254 public boolean onTouchEvent(MotionEvent event) { 9255 // This is done even when the View does not have focus, so that long presses can start 9256 // selection and tap can move cursor from this tap position. 9257 if (isTextEditable() || mTextIsSelectable) { 9258 switch (event.getActionMasked()) { 9259 case MotionEvent.ACTION_DOWN: 9260 final int x = (int) event.getX(); 9261 final int y = (int) event.getY(); 9262 9263 // Remember finger down position, to be able to start selection from there 9264 mMinTouchOffset = mMaxTouchOffset = getOffset(x, y); 9265 9266 // Double tap detection 9267 long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime; 9268 if (duration <= ViewConfiguration.getDoubleTapTimeout() && 9269 isPositionOnText(x, y)) { 9270 final int deltaX = x - mPreviousTapPositionX; 9271 final int deltaY = y - mPreviousTapPositionY; 9272 final int distanceSquared = deltaX * deltaX + deltaY * deltaY; 9273 if (distanceSquared < mSquaredTouchSlopDistance) { 9274 startSelectionActionMode(); 9275 mDiscardNextActionUp = true; 9276 } 9277 } 9278 9279 mPreviousTapPositionX = x; 9280 mPreviousTapPositionY = y; 9281 9282 break; 9283 9284 case MotionEvent.ACTION_POINTER_DOWN: 9285 case MotionEvent.ACTION_POINTER_UP: 9286 // Handle multi-point gestures. Keep min and max offset positions. 9287 // Only activated for devices that correctly handle multi-touch. 9288 if (mContext.getPackageManager().hasSystemFeature( 9289 PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) { 9290 updateMinAndMaxOffsets(event); 9291 } 9292 break; 9293 9294 case MotionEvent.ACTION_UP: 9295 mPreviousTapUpTime = SystemClock.uptimeMillis(); 9296 break; 9297 } 9298 } 9299 return false; 9300 } 9301 9302 /** 9303 * @param event 9304 */ 9305 private void updateMinAndMaxOffsets(MotionEvent event) { 9306 int pointerCount = event.getPointerCount(); 9307 for (int index = 0; index < pointerCount; index++) { 9308 final int x = (int) event.getX(index); 9309 final int y = (int) event.getY(index); 9310 int offset = getOffset(x, y); 9311 if (offset < mMinTouchOffset) mMinTouchOffset = offset; 9312 if (offset > mMaxTouchOffset) mMaxTouchOffset = offset; 9313 } 9314 } 9315 9316 public int getMinTouchOffset() { 9317 return mMinTouchOffset; 9318 } 9319 9320 public int getMaxTouchOffset() { 9321 return mMaxTouchOffset; 9322 } 9323 9324 public void resetTouchOffsets() { 9325 mMinTouchOffset = mMaxTouchOffset = -1; 9326 } 9327 9328 /** 9329 * @return true iff this controller is currently used to move the selection start. 9330 */ 9331 public boolean isSelectionStartDragged() { 9332 return mStartHandle != null && mStartHandle.isDragging(); 9333 } 9334 9335 public void onTouchModeChanged(boolean isInTouchMode) { 9336 if (!isInTouchMode) { 9337 hide(); 9338 } 9339 } 9340 9341 @Override 9342 public void onDetached() { 9343 if (mStartHandle != null) mStartHandle.onDetached(); 9344 if (mEndHandle != null) mEndHandle.onDetached(); 9345 } 9346 } 9347 9348 private void hideInsertionPointCursorController() { 9349 // No need to create the controller to hide it. 9350 if (mInsertionPointCursorController != null) { 9351 mInsertionPointCursorController.hide(); 9352 } 9353 } 9354 9355 /** 9356 * Hides the insertion controller and stops text selection mode, hiding the selection controller 9357 */ 9358 private void hideControllers() { 9359 hideInsertionPointCursorController(); 9360 stopSelectionActionMode(); 9361 } 9362 9363 /** 9364 * Get the offset character closest to the specified absolute position. 9365 * 9366 * @param x The horizontal absolute position of a point on screen 9367 * @param y The vertical absolute position of a point on screen 9368 * @return the character offset for the character whose position is closest to the specified 9369 * position. Returns -1 if there is no layout. 9370 * 9371 * @hide 9372 */ 9373 public int getOffset(int x, int y) { 9374 if (getLayout() == null) return -1; 9375 final int line = getLineAtCoordinate(y); 9376 final int offset = getOffsetAtCoordinate(line, x); 9377 return offset; 9378 } 9379 9380 private int convertToLocalHorizontalCoordinate(int x) { 9381 x -= getTotalPaddingLeft(); 9382 // Clamp the position to inside of the view. 9383 x = Math.max(0, x); 9384 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 9385 x += getScrollX(); 9386 return x; 9387 } 9388 9389 private int getLineAtCoordinate(int y) { 9390 y -= getTotalPaddingTop(); 9391 // Clamp the position to inside of the view. 9392 y = Math.max(0, y); 9393 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 9394 y += getScrollY(); 9395 return getLayout().getLineForVertical(y); 9396 } 9397 9398 private int getOffsetAtCoordinate(int line, int x) { 9399 x = convertToLocalHorizontalCoordinate(x); 9400 return getLayout().getOffsetForHorizontal(line, x); 9401 } 9402 9403 /** Returns true if the screen coordinates position (x,y) corresponds to a character displayed 9404 * in the view. Returns false when the position is in the empty space of left/right of text. 9405 */ 9406 private boolean isPositionOnText(int x, int y) { 9407 if (getLayout() == null) return false; 9408 9409 final int line = getLineAtCoordinate(y); 9410 x = convertToLocalHorizontalCoordinate(x); 9411 9412 if (x < getLayout().getLineLeft(line)) return false; 9413 if (x > getLayout().getLineRight(line)) return false; 9414 return true; 9415 } 9416 9417 @Override 9418 public boolean onDragEvent(DragEvent event) { 9419 switch (event.getAction()) { 9420 case DragEvent.ACTION_DRAG_STARTED: 9421 return hasInsertionController(); 9422 9423 case DragEvent.ACTION_DRAG_ENTERED: 9424 TextView.this.requestFocus(); 9425 return true; 9426 9427 case DragEvent.ACTION_DRAG_LOCATION: 9428 final int offset = getOffset((int) event.getX(), (int) event.getY()); 9429 Selection.setSelection((Spannable)mText, offset); 9430 return true; 9431 9432 case DragEvent.ACTION_DROP: 9433 onDrop(event); 9434 return true; 9435 9436 case DragEvent.ACTION_DRAG_ENDED: 9437 case DragEvent.ACTION_DRAG_EXITED: 9438 default: 9439 return true; 9440 } 9441 } 9442 9443 private void onDrop(DragEvent event) { 9444 StringBuilder content = new StringBuilder(""); 9445 ClipData clipData = event.getClipData(); 9446 final int itemCount = clipData.getItemCount(); 9447 for (int i=0; i < itemCount; i++) { 9448 Item item = clipData.getItemAt(i); 9449 content.append(item.coerceToText(TextView.this.mContext)); 9450 } 9451 9452 final int offset = getOffset((int) event.getX(), (int) event.getY()); 9453 9454 Object localState = event.getLocalState(); 9455 DragLocalState dragLocalState = null; 9456 if (localState instanceof DragLocalState) { 9457 dragLocalState = (DragLocalState) localState; 9458 } 9459 boolean dragDropIntoItself = dragLocalState != null && 9460 dragLocalState.sourceTextView == this; 9461 9462 if (dragDropIntoItself) { 9463 if (offset >= dragLocalState.start && offset < dragLocalState.end) { 9464 // A drop inside the original selection discards the drop. 9465 return; 9466 } 9467 } 9468 9469 final int originalLength = mText.length(); 9470 long minMax = prepareSpacesAroundPaste(offset, offset, content); 9471 int min = extractRangeStartFromLong(minMax); 9472 int max = extractRangeEndFromLong(minMax); 9473 9474 Selection.setSelection((Spannable) mText, max); 9475 ((Editable) mText).replace(min, max, content); 9476 9477 if (dragDropIntoItself) { 9478 int dragSourceStart = dragLocalState.start; 9479 int dragSourceEnd = dragLocalState.end; 9480 if (max <= dragSourceStart) { 9481 // Inserting text before selection has shifted positions 9482 final int shift = mText.length() - originalLength; 9483 dragSourceStart += shift; 9484 dragSourceEnd += shift; 9485 } 9486 9487 // Delete original selection 9488 ((Editable) mText).delete(dragSourceStart, dragSourceEnd); 9489 9490 // Make sure we do not leave two adjacent spaces. 9491 if ((dragSourceStart == 0 || 9492 Character.isSpaceChar(mTransformed.charAt(dragSourceStart - 1))) && 9493 (dragSourceStart == mText.length() || 9494 Character.isSpaceChar(mTransformed.charAt(dragSourceStart)))) { 9495 final int pos = dragSourceStart == mText.length() ? 9496 dragSourceStart - 1 : dragSourceStart; 9497 ((Editable) mText).delete(pos, pos + 1); 9498 } 9499 } 9500 } 9501 9502 /** 9503 * @return True if this view supports insertion handles. 9504 */ 9505 boolean hasInsertionController() { 9506 return mInsertionControllerEnabled; 9507 } 9508 9509 /** 9510 * @return True if this view supports selection handles. 9511 */ 9512 boolean hasSelectionController() { 9513 return mSelectionControllerEnabled; 9514 } 9515 9516 InsertionPointCursorController getInsertionController() { 9517 if (!mInsertionControllerEnabled) { 9518 return null; 9519 } 9520 9521 if (mInsertionPointCursorController == null) { 9522 mInsertionPointCursorController = new InsertionPointCursorController(); 9523 9524 final ViewTreeObserver observer = getViewTreeObserver(); 9525 observer.addOnTouchModeChangeListener(mInsertionPointCursorController); 9526 } 9527 9528 return mInsertionPointCursorController; 9529 } 9530 9531 SelectionModifierCursorController getSelectionController() { 9532 if (!mSelectionControllerEnabled) { 9533 return null; 9534 } 9535 9536 if (mSelectionModifierCursorController == null) { 9537 mSelectionModifierCursorController = new SelectionModifierCursorController(); 9538 9539 final ViewTreeObserver observer = getViewTreeObserver(); 9540 observer.addOnTouchModeChangeListener(mSelectionModifierCursorController); 9541 } 9542 9543 return mSelectionModifierCursorController; 9544 } 9545 9546 boolean isInBatchEditMode() { 9547 final InputMethodState ims = mInputMethodState; 9548 if (ims != null) { 9549 return ims.mBatchEditNesting > 0; 9550 } 9551 return mInBatchEditControllers; 9552 } 9553 9554 @ViewDebug.ExportedProperty(category = "text") 9555 private CharSequence mText; 9556 private CharSequence mTransformed; 9557 private BufferType mBufferType = BufferType.NORMAL; 9558 9559 private int mInputType = EditorInfo.TYPE_NULL; 9560 private CharSequence mHint; 9561 private Layout mHintLayout; 9562 9563 private KeyListener mInput; 9564 9565 private MovementMethod mMovement; 9566 private TransformationMethod mTransformation; 9567 private ChangeWatcher mChangeWatcher; 9568 9569 private ArrayList<TextWatcher> mListeners = null; 9570 9571 // display attributes 9572 private final TextPaint mTextPaint; 9573 private boolean mUserSetTextScaleX; 9574 private final Paint mHighlightPaint; 9575 private int mHighlightColor = 0xCC475925; 9576 /** 9577 * This is temporarily visible to fix bug 3085564 in webView. Do not rely on 9578 * this field being protected. Will be restored as private when lineHeight 9579 * feature request 3215097 is implemented 9580 * @hide 9581 */ 9582 protected Layout mLayout; 9583 9584 private long mShowCursor; 9585 private Blink mBlink; 9586 private boolean mCursorVisible = true; 9587 9588 // Cursor Controllers. 9589 private InsertionPointCursorController mInsertionPointCursorController; 9590 private SelectionModifierCursorController mSelectionModifierCursorController; 9591 private ActionMode mSelectionActionMode; 9592 private boolean mInsertionControllerEnabled; 9593 private boolean mSelectionControllerEnabled; 9594 private boolean mInBatchEditControllers; 9595 9596 // These are needed to desambiguate a long click. If the long click comes from ones of these, we 9597 // select from the current cursor position. Otherwise, select from long pressed position. 9598 private boolean mDPadCenterIsDown = false; 9599 private boolean mEnterKeyIsDown = false; 9600 private boolean mContextMenuTriggeredByKey = false; 9601 // Created once and shared by different CursorController helper methods. 9602 // Only one cursor controller is active at any time which prevent race conditions. 9603 private static Rect sCursorControllerTempRect = new Rect(); 9604 9605 private boolean mSelectAllOnFocus = false; 9606 9607 private int mGravity = Gravity.TOP | Gravity.LEFT; 9608 private boolean mHorizontallyScrolling; 9609 9610 private int mAutoLinkMask; 9611 private boolean mLinksClickable = true; 9612 9613 private float mSpacingMult = 1; 9614 private float mSpacingAdd = 0; 9615 private boolean mTextIsSelectable = false; 9616 9617 private static final int LINES = 1; 9618 private static final int EMS = LINES; 9619 private static final int PIXELS = 2; 9620 9621 private int mMaximum = Integer.MAX_VALUE; 9622 private int mMaxMode = LINES; 9623 private int mMinimum = 0; 9624 private int mMinMode = LINES; 9625 9626 private int mMaxWidth = Integer.MAX_VALUE; 9627 private int mMaxWidthMode = PIXELS; 9628 private int mMinWidth = 0; 9629 private int mMinWidthMode = PIXELS; 9630 9631 private boolean mSingleLine; 9632 private int mDesiredHeightAtMeasure = -1; 9633 private boolean mIncludePad = true; 9634 9635 // tmp primitives, so we don't alloc them on each draw 9636 private Path mHighlightPath; 9637 private boolean mHighlightPathBogus = true; 9638 private static final RectF sTempRect = new RectF(); 9639 9640 // XXX should be much larger 9641 private static final int VERY_WIDE = 16384; 9642 9643 private static final int BLINK = 500; 9644 9645 private static final int ANIMATED_SCROLL_GAP = 250; 9646 private long mLastScroll; 9647 private Scroller mScroller = null; 9648 9649 private BoringLayout.Metrics mBoring; 9650 private BoringLayout.Metrics mHintBoring; 9651 9652 private BoringLayout mSavedLayout, mSavedHintLayout; 9653 9654 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 9655 private InputFilter[] mFilters = NO_FILTERS; 9656 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 9657 private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20; 9658 // System wide time for last cut or copy action. 9659 private static long sLastCutOrCopyTime; 9660 // Used to highlight a word when it is corrected by the IME 9661 private CorrectionHighlighter mCorrectionHighlighter; 9662 // New state used to change background based on whether this TextView is multiline. 9663 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 9664} 9665