TextView.java revision 48540eb8537b501b70ff96858b77b37c3f930603 
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.widget;
18
19import com.android.internal.util.FastMath;
20import com.android.internal.widget.EditableInputConnection;
21
22import org.xmlpull.v1.XmlPullParserException;
23
24import android.content.Context;
25import android.content.Intent;
26import android.content.res.ColorStateList;
27import android.content.res.Resources;
28import android.content.res.TypedArray;
29import android.content.res.XmlResourceParser;
30import android.graphics.Canvas;
31import android.graphics.Paint;
32import android.graphics.Path;
33import android.graphics.Rect;
34import android.graphics.RectF;
35import android.graphics.Typeface;
36import android.graphics.drawable.Drawable;
37import android.os.Bundle;
38import android.os.Handler;
39import android.os.Message;
40import android.os.Parcel;
41import android.os.Parcelable;
42import android.os.ResultReceiver;
43import android.os.SystemClock;
44import android.text.BoringLayout;
45import android.text.ClipboardManager;
46import android.text.DynamicLayout;
47import android.text.Editable;
48import android.text.GetChars;
49import android.text.GraphicsOperations;
50import android.text.InputFilter;
51import android.text.InputType;
52import android.text.Layout;
53import android.text.ParcelableSpan;
54import android.text.Selection;
55import android.text.SpanWatcher;
56import android.text.Spannable;
57import android.text.SpannableString;
58import android.text.Spanned;
59import android.text.SpannedString;
60import android.text.StaticLayout;
61import android.text.TextPaint;
62import android.text.TextUtils;
63import android.text.TextWatcher;
64import android.text.method.DateKeyListener;
65import android.text.method.DateTimeKeyListener;
66import android.text.method.DialerKeyListener;
67import android.text.method.DigitsKeyListener;
68import android.text.method.KeyListener;
69import android.text.method.LinkMovementMethod;
70import android.text.method.MetaKeyKeyListener;
71import android.text.method.MovementMethod;
72import android.text.method.PasswordTransformationMethod;
73import android.text.method.SingleLineTransformationMethod;
74import android.text.method.TextKeyListener;
75import android.text.method.TimeKeyListener;
76import android.text.method.TransformationMethod;
77import android.text.style.ParagraphStyle;
78import android.text.style.URLSpan;
79import android.text.style.UpdateAppearance;
80import android.text.util.Linkify;
81import android.util.AttributeSet;
82import android.util.FloatMath;
83import android.util.Log;
84import android.util.TypedValue;
85import android.view.ContextMenu;
86import android.view.Gravity;
87import android.view.KeyEvent;
88import android.view.LayoutInflater;
89import android.view.MenuItem;
90import android.view.MotionEvent;
91import android.view.View;
92import android.view.ViewDebug;
93import android.view.ViewRoot;
94import android.view.ViewTreeObserver;
95import android.view.ViewGroup.LayoutParams;
96import android.view.accessibility.AccessibilityEvent;
97import android.view.accessibility.AccessibilityManager;
98import android.view.animation.AnimationUtils;
99import android.view.inputmethod.BaseInputConnection;
100import android.view.inputmethod.CompletionInfo;
101import android.view.inputmethod.EditorInfo;
102import android.view.inputmethod.ExtractedText;
103import android.view.inputmethod.ExtractedTextRequest;
104import android.view.inputmethod.InputConnection;
105import android.view.inputmethod.InputMethodManager;
106import android.widget.RemoteViews.RemoteView;
107
108import java.io.IOException;
109import java.lang.ref.WeakReference;
110import java.util.ArrayList;
111
112/**
113 * Displays text to the user and optionally allows them to edit it.  A TextView
114 * is a complete text editor, however the basic class is configured to not
115 * allow editing; see {@link EditText} for a subclass that configures the text
116 * view for editing.
117 *
118 * <p>
119 * <b>XML attributes</b>
120 * <p>
121 * See {@link android.R.styleable#TextView TextView Attributes},
122 * {@link android.R.styleable#View View Attributes}
123 *
124 * @attr ref android.R.styleable#TextView_text
125 * @attr ref android.R.styleable#TextView_bufferType
126 * @attr ref android.R.styleable#TextView_hint
127 * @attr ref android.R.styleable#TextView_textColor
128 * @attr ref android.R.styleable#TextView_textColorHighlight
129 * @attr ref android.R.styleable#TextView_textColorHint
130 * @attr ref android.R.styleable#TextView_textSize
131 * @attr ref android.R.styleable#TextView_textScaleX
132 * @attr ref android.R.styleable#TextView_typeface
133 * @attr ref android.R.styleable#TextView_textStyle
134 * @attr ref android.R.styleable#TextView_cursorVisible
135 * @attr ref android.R.styleable#TextView_maxLines
136 * @attr ref android.R.styleable#TextView_maxHeight
137 * @attr ref android.R.styleable#TextView_lines
138 * @attr ref android.R.styleable#TextView_height
139 * @attr ref android.R.styleable#TextView_minLines
140 * @attr ref android.R.styleable#TextView_minHeight
141 * @attr ref android.R.styleable#TextView_maxEms
142 * @attr ref android.R.styleable#TextView_maxWidth
143 * @attr ref android.R.styleable#TextView_ems
144 * @attr ref android.R.styleable#TextView_width
145 * @attr ref android.R.styleable#TextView_minEms
146 * @attr ref android.R.styleable#TextView_minWidth
147 * @attr ref android.R.styleable#TextView_gravity
148 * @attr ref android.R.styleable#TextView_scrollHorizontally
149 * @attr ref android.R.styleable#TextView_password
150 * @attr ref android.R.styleable#TextView_singleLine
151 * @attr ref android.R.styleable#TextView_selectAllOnFocus
152 * @attr ref android.R.styleable#TextView_includeFontPadding
153 * @attr ref android.R.styleable#TextView_maxLength
154 * @attr ref android.R.styleable#TextView_shadowColor
155 * @attr ref android.R.styleable#TextView_shadowDx
156 * @attr ref android.R.styleable#TextView_shadowDy
157 * @attr ref android.R.styleable#TextView_shadowRadius
158 * @attr ref android.R.styleable#TextView_autoLink
159 * @attr ref android.R.styleable#TextView_linksClickable
160 * @attr ref android.R.styleable#TextView_numeric
161 * @attr ref android.R.styleable#TextView_digits
162 * @attr ref android.R.styleable#TextView_phoneNumber
163 * @attr ref android.R.styleable#TextView_inputMethod
164 * @attr ref android.R.styleable#TextView_capitalize
165 * @attr ref android.R.styleable#TextView_autoText
166 * @attr ref android.R.styleable#TextView_editable
167 * @attr ref android.R.styleable#TextView_drawableTop
168 * @attr ref android.R.styleable#TextView_drawableBottom
169 * @attr ref android.R.styleable#TextView_drawableRight
170 * @attr ref android.R.styleable#TextView_drawableLeft
171 * @attr ref android.R.styleable#TextView_lineSpacingExtra
172 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier
173 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit
174 */
175@RemoteView
176public class TextView extends View implements ViewTreeObserver.OnPreDrawListener {
177    static final String TAG = "TextView";
178    static final boolean DEBUG_EXTRACT = false;
179
180    private static int PRIORITY = 100;
181
182    private ColorStateList mTextColor;
183    private int mCurTextColor;
184    private ColorStateList mHintTextColor;
185    private ColorStateList mLinkTextColor;
186    private int mCurHintTextColor;
187    private boolean mFreezesText;
188    private boolean mFrozenWithFocus;
189    private boolean mTemporaryDetach;
190
191    private boolean mEatTouchRelease = false;
192    private boolean mScrolled = false;
193
194    private Editable.Factory mEditableFactory = Editable.Factory.getInstance();
195    private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance();
196
197    private float mShadowRadius, mShadowDx, mShadowDy;
198
199    private static final int PREDRAW_NOT_REGISTERED = 0;
200    private static final int PREDRAW_PENDING = 1;
201    private static final int PREDRAW_DONE = 2;
202    private int mPreDrawState = PREDRAW_NOT_REGISTERED;
203
204    private TextUtils.TruncateAt mEllipsize = null;
205
206    // Enum for the "typeface" XML parameter.
207    // TODO: How can we get this from the XML instead of hardcoding it here?
208    private static final int SANS = 1;
209    private static final int SERIF = 2;
210    private static final int MONOSPACE = 3;
211
212    // Bitfield for the "numeric" XML parameter.
213    // TODO: How can we get this from the XML instead of hardcoding it here?
214    private static final int SIGNED = 2;
215    private static final int DECIMAL = 4;
216
217    class Drawables {
218        final Rect mCompoundRect = new Rect();
219        Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight;
220        int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight;
221        int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight;
222        int mDrawablePadding;
223    }
224    private Drawables mDrawables;
225
226    private CharSequence mError;
227    private boolean mErrorWasChanged;
228    private ErrorPopup mPopup;
229    /**
230     * This flag is set if the TextView tries to display an error before it
231     * is attached to the window (so its position is still unknown).
232     * It causes the error to be shown later, when onAttachedToWindow()
233     * is called.
234     */
235    private boolean mShowErrorAfterAttach;
236
237    private CharWrapper mCharWrapper = null;
238
239    private boolean mSelectionMoved = false;
240    private boolean mTouchFocusSelected = false;
241
242    private Marquee mMarquee;
243    private boolean mRestartMarquee;
244
245    private int mMarqueeRepeatLimit = 3;
246
247    class InputContentType {
248        int imeOptions = EditorInfo.IME_NULL;
249        String privateImeOptions;
250        CharSequence imeActionLabel;
251        int imeActionId;
252        Bundle extras;
253        OnEditorActionListener onEditorActionListener;
254        boolean enterDown;
255    }
256    InputContentType mInputContentType;
257
258    class InputMethodState {
259        Rect mCursorRectInWindow = new Rect();
260        RectF mTmpRectF = new RectF();
261        float[] mTmpOffset = new float[2];
262        ExtractedTextRequest mExtracting;
263        final ExtractedText mTmpExtracted = new ExtractedText();
264        int mBatchEditNesting;
265        boolean mCursorChanged;
266        boolean mSelectionModeChanged;
267        boolean mContentChanged;
268        int mChangedStart, mChangedEnd, mChangedDelta;
269    }
270    InputMethodState mInputMethodState;
271
272    /*
273     * Kick-start the font cache for the zygote process (to pay the cost of
274     * initializing freetype for our default font only once).
275     */
276    static {
277        Paint p = new Paint();
278        p.setAntiAlias(true);
279        // We don't care about the result, just the side-effect of measuring.
280        p.measureText("H");
281    }
282
283    /**
284     * Interface definition for a callback to be invoked when an action is
285     * performed on the editor.
286     */
287    public interface OnEditorActionListener {
288        /**
289         * Called when an action is being performed.
290         *
291         * @param v The view that was clicked.
292         * @param actionId Identifier of the action.  This will be either the
293         * identifier you supplied, or {@link EditorInfo#IME_NULL
294         * EditorInfo.IME_NULL} if being called due to the enter key
295         * being pressed.
296         * @param event If triggered by an enter key, this is the event;
297         * otherwise, this is null.
298         * @return Return true if you have consumed the action, else false.
299         */
300        boolean onEditorAction(TextView v, int actionId, KeyEvent event);
301    }
302
303    public TextView(Context context) {
304        this(context, null);
305    }
306
307    public TextView(Context context,
308                    AttributeSet attrs) {
309        this(context, attrs, com.android.internal.R.attr.textViewStyle);
310    }
311
312    public TextView(Context context,
313                    AttributeSet attrs,
314                    int defStyle) {
315        super(context, attrs, defStyle);
316        mText = "";
317
318        mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
319        // If we get the paint from the skin, we should set it to left, since
320        // the layout always wants it to be left.
321        // mTextPaint.setTextAlign(Paint.Align.LEFT);
322
323        mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
324
325        mMovement = getDefaultMovementMethod();
326        mTransformation = null;
327
328        TypedArray a =
329            context.obtainStyledAttributes(
330                attrs, com.android.internal.R.styleable.TextView, defStyle, 0);
331
332        int textColorHighlight = 0;
333        ColorStateList textColor = null;
334        ColorStateList textColorHint = null;
335        ColorStateList textColorLink = null;
336        int textSize = 15;
337        int typefaceIndex = -1;
338        int styleIndex = -1;
339
340        /*
341         * Look the appearance up without checking first if it exists because
342         * almost every TextView has one and it greatly simplifies the logic
343         * to be able to parse the appearance first and then let specific tags
344         * for this View override it.
345         */
346        TypedArray appearance = null;
347        int ap = a.getResourceId(com.android.internal.R.styleable.TextView_textAppearance, -1);
348        if (ap != -1) {
349            appearance = context.obtainStyledAttributes(ap,
350                                com.android.internal.R.styleable.
351                                TextAppearance);
352        }
353        if (appearance != null) {
354            int n = appearance.getIndexCount();
355            for (int i = 0; i < n; i++) {
356                int attr = appearance.getIndex(i);
357
358                switch (attr) {
359                case com.android.internal.R.styleable.TextAppearance_textColorHighlight:
360                    textColorHighlight = appearance.getColor(attr, textColorHighlight);
361                    break;
362
363                case com.android.internal.R.styleable.TextAppearance_textColor:
364                    textColor = appearance.getColorStateList(attr);
365                    break;
366
367                case com.android.internal.R.styleable.TextAppearance_textColorHint:
368                    textColorHint = appearance.getColorStateList(attr);
369                    break;
370
371                case com.android.internal.R.styleable.TextAppearance_textColorLink:
372                    textColorLink = appearance.getColorStateList(attr);
373                    break;
374
375                case com.android.internal.R.styleable.TextAppearance_textSize:
376                    textSize = appearance.getDimensionPixelSize(attr, textSize);
377                    break;
378
379                case com.android.internal.R.styleable.TextAppearance_typeface:
380                    typefaceIndex = appearance.getInt(attr, -1);
381                    break;
382
383                case com.android.internal.R.styleable.TextAppearance_textStyle:
384                    styleIndex = appearance.getInt(attr, -1);
385                    break;
386                }
387            }
388
389            appearance.recycle();
390        }
391
392        boolean editable = getDefaultEditable();
393        CharSequence inputMethod = null;
394        int numeric = 0;
395        CharSequence digits = null;
396        boolean phone = false;
397        boolean autotext = false;
398        int autocap = -1;
399        int buffertype = 0;
400        boolean selectallonfocus = false;
401        Drawable drawableLeft = null, drawableTop = null, drawableRight = null,
402            drawableBottom = null;
403        int drawablePadding = 0;
404        int ellipsize = -1;
405        boolean singleLine = false;
406        int maxlength = -1;
407        CharSequence text = "";
408        int shadowcolor = 0;
409        float dx = 0, dy = 0, r = 0;
410        boolean password = false;
411        int inputType = EditorInfo.TYPE_NULL;
412
413        int n = a.getIndexCount();
414        for (int i = 0; i < n; i++) {
415            int attr = a.getIndex(i);
416
417            switch (attr) {
418            case com.android.internal.R.styleable.TextView_editable:
419                editable = a.getBoolean(attr, editable);
420                break;
421
422            case com.android.internal.R.styleable.TextView_inputMethod:
423                inputMethod = a.getText(attr);
424                break;
425
426            case com.android.internal.R.styleable.TextView_numeric:
427                numeric = a.getInt(attr, numeric);
428                break;
429
430            case com.android.internal.R.styleable.TextView_digits:
431                digits = a.getText(attr);
432                break;
433
434            case com.android.internal.R.styleable.TextView_phoneNumber:
435                phone = a.getBoolean(attr, phone);
436                break;
437
438            case com.android.internal.R.styleable.TextView_autoText:
439                autotext = a.getBoolean(attr, autotext);
440                break;
441
442            case com.android.internal.R.styleable.TextView_capitalize:
443                autocap = a.getInt(attr, autocap);
444                break;
445
446            case com.android.internal.R.styleable.TextView_bufferType:
447                buffertype = a.getInt(attr, buffertype);
448                break;
449
450            case com.android.internal.R.styleable.TextView_selectAllOnFocus:
451                selectallonfocus = a.getBoolean(attr, selectallonfocus);
452                break;
453
454            case com.android.internal.R.styleable.TextView_autoLink:
455                mAutoLinkMask = a.getInt(attr, 0);
456                break;
457
458            case com.android.internal.R.styleable.TextView_linksClickable:
459                mLinksClickable = a.getBoolean(attr, true);
460                break;
461
462            case com.android.internal.R.styleable.TextView_drawableLeft:
463                drawableLeft = a.getDrawable(attr);
464                break;
465
466            case com.android.internal.R.styleable.TextView_drawableTop:
467                drawableTop = a.getDrawable(attr);
468                break;
469
470            case com.android.internal.R.styleable.TextView_drawableRight:
471                drawableRight = a.getDrawable(attr);
472                break;
473
474            case com.android.internal.R.styleable.TextView_drawableBottom:
475                drawableBottom = a.getDrawable(attr);
476                break;
477
478            case com.android.internal.R.styleable.TextView_drawablePadding:
479                drawablePadding = a.getDimensionPixelSize(attr, drawablePadding);
480                break;
481
482            case com.android.internal.R.styleable.TextView_maxLines:
483                setMaxLines(a.getInt(attr, -1));
484                break;
485
486            case com.android.internal.R.styleable.TextView_maxHeight:
487                setMaxHeight(a.getDimensionPixelSize(attr, -1));
488                break;
489
490            case com.android.internal.R.styleable.TextView_lines:
491                setLines(a.getInt(attr, -1));
492                break;
493
494            case com.android.internal.R.styleable.TextView_height:
495                setHeight(a.getDimensionPixelSize(attr, -1));
496                break;
497
498            case com.android.internal.R.styleable.TextView_minLines:
499                setMinLines(a.getInt(attr, -1));
500                break;
501
502            case com.android.internal.R.styleable.TextView_minHeight:
503                setMinHeight(a.getDimensionPixelSize(attr, -1));
504                break;
505
506            case com.android.internal.R.styleable.TextView_maxEms:
507                setMaxEms(a.getInt(attr, -1));
508                break;
509
510            case com.android.internal.R.styleable.TextView_maxWidth:
511                setMaxWidth(a.getDimensionPixelSize(attr, -1));
512                break;
513
514            case com.android.internal.R.styleable.TextView_ems:
515                setEms(a.getInt(attr, -1));
516                break;
517
518            case com.android.internal.R.styleable.TextView_width:
519                setWidth(a.getDimensionPixelSize(attr, -1));
520                break;
521
522            case com.android.internal.R.styleable.TextView_minEms:
523                setMinEms(a.getInt(attr, -1));
524                break;
525
526            case com.android.internal.R.styleable.TextView_minWidth:
527                setMinWidth(a.getDimensionPixelSize(attr, -1));
528                break;
529
530            case com.android.internal.R.styleable.TextView_gravity:
531                setGravity(a.getInt(attr, -1));
532                break;
533
534            case com.android.internal.R.styleable.TextView_hint:
535                setHint(a.getText(attr));
536                break;
537
538            case com.android.internal.R.styleable.TextView_text:
539                text = a.getText(attr);
540                break;
541
542            case com.android.internal.R.styleable.TextView_scrollHorizontally:
543                if (a.getBoolean(attr, false)) {
544                    setHorizontallyScrolling(true);
545                }
546                break;
547
548            case com.android.internal.R.styleable.TextView_singleLine:
549                singleLine = a.getBoolean(attr, singleLine);
550                break;
551
552            case com.android.internal.R.styleable.TextView_ellipsize:
553                ellipsize = a.getInt(attr, ellipsize);
554                break;
555
556            case com.android.internal.R.styleable.TextView_marqueeRepeatLimit:
557                setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit));
558                break;
559
560            case com.android.internal.R.styleable.TextView_includeFontPadding:
561                if (!a.getBoolean(attr, true)) {
562                    setIncludeFontPadding(false);
563                }
564                break;
565
566            case com.android.internal.R.styleable.TextView_cursorVisible:
567                if (!a.getBoolean(attr, true)) {
568                    setCursorVisible(false);
569                }
570                break;
571
572            case com.android.internal.R.styleable.TextView_maxLength:
573                maxlength = a.getInt(attr, -1);
574                break;
575
576            case com.android.internal.R.styleable.TextView_textScaleX:
577                setTextScaleX(a.getFloat(attr, 1.0f));
578                break;
579
580            case com.android.internal.R.styleable.TextView_freezesText:
581                mFreezesText = a.getBoolean(attr, false);
582                break;
583
584            case com.android.internal.R.styleable.TextView_shadowColor:
585                shadowcolor = a.getInt(attr, 0);
586                break;
587
588            case com.android.internal.R.styleable.TextView_shadowDx:
589                dx = a.getFloat(attr, 0);
590                break;
591
592            case com.android.internal.R.styleable.TextView_shadowDy:
593                dy = a.getFloat(attr, 0);
594                break;
595
596            case com.android.internal.R.styleable.TextView_shadowRadius:
597                r = a.getFloat(attr, 0);
598                break;
599
600            case com.android.internal.R.styleable.TextView_enabled:
601                setEnabled(a.getBoolean(attr, isEnabled()));
602                break;
603
604            case com.android.internal.R.styleable.TextView_textColorHighlight:
605                textColorHighlight = a.getColor(attr, textColorHighlight);
606                break;
607
608            case com.android.internal.R.styleable.TextView_textColor:
609                textColor = a.getColorStateList(attr);
610                break;
611
612            case com.android.internal.R.styleable.TextView_textColorHint:
613                textColorHint = a.getColorStateList(attr);
614                break;
615
616            case com.android.internal.R.styleable.TextView_textColorLink:
617                textColorLink = a.getColorStateList(attr);
618                break;
619
620            case com.android.internal.R.styleable.TextView_textSize:
621                textSize = a.getDimensionPixelSize(attr, textSize);
622                break;
623
624            case com.android.internal.R.styleable.TextView_typeface:
625                typefaceIndex = a.getInt(attr, typefaceIndex);
626                break;
627
628            case com.android.internal.R.styleable.TextView_textStyle:
629                styleIndex = a.getInt(attr, styleIndex);
630                break;
631
632            case com.android.internal.R.styleable.TextView_password:
633                password = a.getBoolean(attr, password);
634                break;
635
636            case com.android.internal.R.styleable.TextView_lineSpacingExtra:
637                mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd);
638                break;
639
640            case com.android.internal.R.styleable.TextView_lineSpacingMultiplier:
641                mSpacingMult = a.getFloat(attr, mSpacingMult);
642                break;
643
644            case com.android.internal.R.styleable.TextView_inputType:
645                inputType = a.getInt(attr, mInputType);
646                break;
647
648            case com.android.internal.R.styleable.TextView_imeOptions:
649                if (mInputContentType == null) {
650                    mInputContentType = new InputContentType();
651                }
652                mInputContentType.imeOptions = a.getInt(attr,
653                        mInputContentType.imeOptions);
654                break;
655
656            case com.android.internal.R.styleable.TextView_imeActionLabel:
657                if (mInputContentType == null) {
658                    mInputContentType = new InputContentType();
659                }
660                mInputContentType.imeActionLabel = a.getText(attr);
661                break;
662
663            case com.android.internal.R.styleable.TextView_imeActionId:
664                if (mInputContentType == null) {
665                    mInputContentType = new InputContentType();
666                }
667                mInputContentType.imeActionId = a.getInt(attr,
668                        mInputContentType.imeActionId);
669                break;
670
671            case com.android.internal.R.styleable.TextView_privateImeOptions:
672                setPrivateImeOptions(a.getString(attr));
673                break;
674
675            case com.android.internal.R.styleable.TextView_editorExtras:
676                try {
677                    setInputExtras(a.getResourceId(attr, 0));
678                } catch (XmlPullParserException e) {
679                    Log.w("TextView", "Failure reading input extras", e);
680                } catch (IOException e) {
681                    Log.w("TextView", "Failure reading input extras", e);
682                }
683                break;
684            }
685        }
686        a.recycle();
687
688        BufferType bufferType = BufferType.EDITABLE;
689
690        if ((inputType&(EditorInfo.TYPE_MASK_CLASS
691                |EditorInfo.TYPE_MASK_VARIATION))
692                == (EditorInfo.TYPE_CLASS_TEXT
693                        |EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) {
694            password = true;
695        }
696
697        if (inputMethod != null) {
698            Class c;
699
700            try {
701                c = Class.forName(inputMethod.toString());
702            } catch (ClassNotFoundException ex) {
703                throw new RuntimeException(ex);
704            }
705
706            try {
707                mInput = (KeyListener) c.newInstance();
708            } catch (InstantiationException ex) {
709                throw new RuntimeException(ex);
710            } catch (IllegalAccessException ex) {
711                throw new RuntimeException(ex);
712            }
713            try {
714                mInputType = inputType != EditorInfo.TYPE_NULL
715                        ? inputType
716                        : mInput.getInputType();
717            } catch (IncompatibleClassChangeError e) {
718                mInputType = EditorInfo.TYPE_CLASS_TEXT;
719            }
720        } else if (digits != null) {
721            mInput = DigitsKeyListener.getInstance(digits.toString());
722            mInputType = inputType;
723        } else if (inputType != EditorInfo.TYPE_NULL) {
724            setInputType(inputType, true);
725            singleLine = (inputType&(EditorInfo.TYPE_MASK_CLASS
726                            | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) !=
727                    (EditorInfo.TYPE_CLASS_TEXT
728                            | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE);
729        } else if (phone) {
730            mInput = DialerKeyListener.getInstance();
731            mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE;
732        } else if (numeric != 0) {
733            mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0,
734                                                   (numeric & DECIMAL) != 0);
735            inputType = EditorInfo.TYPE_CLASS_NUMBER;
736            if ((numeric & SIGNED) != 0) {
737                inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED;
738            }
739            if ((numeric & DECIMAL) != 0) {
740                inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL;
741            }
742            mInputType = inputType;
743        } else if (autotext || autocap != -1) {
744            TextKeyListener.Capitalize cap;
745
746            inputType = EditorInfo.TYPE_CLASS_TEXT;
747            if (!singleLine) {
748                inputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE;
749            }
750
751            switch (autocap) {
752            case 1:
753                cap = TextKeyListener.Capitalize.SENTENCES;
754                inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES;
755                break;
756
757            case 2:
758                cap = TextKeyListener.Capitalize.WORDS;
759                inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS;
760                break;
761
762            case 3:
763                cap = TextKeyListener.Capitalize.CHARACTERS;
764                inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS;
765                break;
766
767            default:
768                cap = TextKeyListener.Capitalize.NONE;
769                break;
770            }
771
772            mInput = TextKeyListener.getInstance(autotext, cap);
773            mInputType = inputType;
774        } else if (editable) {
775            mInput = TextKeyListener.getInstance();
776            mInputType = EditorInfo.TYPE_CLASS_TEXT;
777        } else {
778            mInput = null;
779
780            switch (buffertype) {
781                case 0:
782                    bufferType = BufferType.NORMAL;
783                    break;
784                case 1:
785                    bufferType = BufferType.SPANNABLE;
786                    break;
787                case 2:
788                    bufferType = BufferType.EDITABLE;
789                    break;
790            }
791        }
792
793        if (password && (mInputType&EditorInfo.TYPE_MASK_CLASS)
794                == EditorInfo.TYPE_CLASS_TEXT) {
795            mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION))
796                | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD;
797        }
798
799        if (selectallonfocus) {
800            mSelectAllOnFocus = true;
801
802            if (bufferType == BufferType.NORMAL)
803                bufferType = BufferType.SPANNABLE;
804        }
805
806        setCompoundDrawablesWithIntrinsicBounds(
807            drawableLeft, drawableTop, drawableRight, drawableBottom);
808        setCompoundDrawablePadding(drawablePadding);
809
810        if (singleLine) {
811            setSingleLine();
812
813            if (mInput == null && ellipsize < 0) {
814                ellipsize = 3; // END
815            }
816        }
817
818        switch (ellipsize) {
819            case 1:
820                setEllipsize(TextUtils.TruncateAt.START);
821                break;
822            case 2:
823                setEllipsize(TextUtils.TruncateAt.MIDDLE);
824                break;
825            case 3:
826                setEllipsize(TextUtils.TruncateAt.END);
827                break;
828            case 4:
829                setHorizontalFadingEdgeEnabled(true);
830                setEllipsize(TextUtils.TruncateAt.MARQUEE);
831                break;
832        }
833
834        setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000));
835        setHintTextColor(textColorHint);
836        setLinkTextColor(textColorLink);
837        if (textColorHighlight != 0) {
838            setHighlightColor(textColorHighlight);
839        }
840        setRawTextSize(textSize);
841
842        if (password) {
843            setTransformationMethod(PasswordTransformationMethod.getInstance());
844            typefaceIndex = MONOSPACE;
845        } else if ((mInputType&(EditorInfo.TYPE_MASK_CLASS
846                |EditorInfo.TYPE_MASK_VARIATION))
847                == (EditorInfo.TYPE_CLASS_TEXT
848                        |EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) {
849            typefaceIndex = MONOSPACE;
850        }
851
852        setTypefaceByIndex(typefaceIndex, styleIndex);
853
854        if (shadowcolor != 0) {
855            setShadowLayer(r, dx, dy, shadowcolor);
856        }
857
858        if (maxlength >= 0) {
859            setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) });
860        } else {
861            setFilters(NO_FILTERS);
862        }
863
864        setText(text, bufferType);
865
866        /*
867         * Views are not normally focusable unless specified to be.
868         * However, TextViews that have input or movement methods *are*
869         * focusable by default.
870         */
871        a = context.obtainStyledAttributes(attrs,
872                                           com.android.internal.R.styleable.View,
873                                           defStyle, 0);
874
875        boolean focusable = mMovement != null || mInput != null;
876        boolean clickable = focusable;
877        boolean longClickable = focusable;
878
879        n = a.getIndexCount();
880        for (int i = 0; i < n; i++) {
881            int attr = a.getIndex(i);
882
883            switch (attr) {
884            case com.android.internal.R.styleable.View_focusable:
885                focusable = a.getBoolean(attr, focusable);
886                break;
887
888            case com.android.internal.R.styleable.View_clickable:
889                clickable = a.getBoolean(attr, clickable);
890                break;
891
892            case com.android.internal.R.styleable.View_longClickable:
893                longClickable = a.getBoolean(attr, longClickable);
894                break;
895            }
896        }
897        a.recycle();
898
899        setFocusable(focusable);
900        setClickable(clickable);
901        setLongClickable(longClickable);
902    }
903
904    private void setTypefaceByIndex(int typefaceIndex, int styleIndex) {
905        Typeface tf = null;
906        switch (typefaceIndex) {
907            case SANS:
908                tf = Typeface.SANS_SERIF;
909                break;
910
911            case SERIF:
912                tf = Typeface.SERIF;
913                break;
914
915            case MONOSPACE:
916                tf = Typeface.MONOSPACE;
917                break;
918        }
919
920        setTypeface(tf, styleIndex);
921    }
922
923    /**
924     * Sets the typeface and style in which the text should be displayed,
925     * and turns on the fake bold and italic bits in the Paint if the
926     * Typeface that you provided does not have all the bits in the
927     * style that you specified.
928     *
929     * @attr ref android.R.styleable#TextView_typeface
930     * @attr ref android.R.styleable#TextView_textStyle
931     */
932    public void setTypeface(Typeface tf, int style) {
933        if (style > 0) {
934            if (tf == null) {
935                tf = Typeface.defaultFromStyle(style);
936            } else {
937                tf = Typeface.create(tf, style);
938            }
939
940            setTypeface(tf);
941            // now compute what (if any) algorithmic styling is needed
942            int typefaceStyle = tf != null ? tf.getStyle() : 0;
943            int need = style & ~typefaceStyle;
944            mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0);
945            mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0);
946        } else {
947            mTextPaint.setFakeBoldText(false);
948            mTextPaint.setTextSkewX(0);
949            setTypeface(tf);
950        }
951    }
952
953    /**
954     * Subclasses override this to specify that they have a KeyListener
955     * by default even if not specifically called for in the XML options.
956     */
957    protected boolean getDefaultEditable() {
958        return false;
959    }
960
961    /**
962     * Subclasses override this to specify a default movement method.
963     */
964    protected MovementMethod getDefaultMovementMethod() {
965        return null;
966    }
967
968    /**
969     * Return the text the TextView is displaying. If setText() was called with
970     * an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast
971     * the return value from this method to Spannable or Editable, respectively.
972     *
973     * Note: The content of the return value should not be modified. If you want
974     * a modifiable one, you should make your own copy first.
975     */
976    @ViewDebug.CapturedViewProperty
977    public CharSequence getText() {
978        return mText;
979    }
980
981    /**
982     * Returns the length, in characters, of the text managed by this TextView
983     */
984    public int length() {
985        return mText.length();
986    }
987
988    /**
989     * Return the text the TextView is displaying as an Editable object.  If
990     * the text is not editable, null is returned.
991     *
992     * @see #getText
993     */
994    public Editable getEditableText() {
995        return (mText instanceof Editable) ? (Editable)mText : null;
996    }
997
998    /**
999     * @return the height of one standard line in pixels.  Note that markup
1000     * within the text can cause individual lines to be taller or shorter
1001     * than this height, and the layout may contain additional first-
1002     * or last-line padding.
1003     */
1004    public int getLineHeight() {
1005        return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult
1006                          + mSpacingAdd);
1007    }
1008
1009    /**
1010     * @return the Layout that is currently being used to display the text.
1011     * This can be null if the text or width has recently changes.
1012     */
1013    public final Layout getLayout() {
1014        return mLayout;
1015    }
1016
1017    /**
1018     * @return the current key listener for this TextView.
1019     * This will frequently be null for non-EditText TextViews.
1020     */
1021    public final KeyListener getKeyListener() {
1022        return mInput;
1023    }
1024
1025    /**
1026     * Sets the key listener to be used with this TextView.  This can be null
1027     * to disallow user input.  Note that this method has significant and
1028     * subtle interactions with soft keyboards and other input method:
1029     * see {@link KeyListener#getInputType() KeyListener.getContentType()}
1030     * for important details.  Calling this method will replace the current
1031     * content type of the text view with the content type returned by the
1032     * key listener.
1033     * <p>
1034     * Be warned that if you want a TextView with a key listener or movement
1035     * method not to be focusable, or if you want a TextView without a
1036     * key listener or movement method to be focusable, you must call
1037     * {@link #setFocusable} again after calling this to get the focusability
1038     * back the way you want it.
1039     *
1040     * @attr ref android.R.styleable#TextView_numeric
1041     * @attr ref android.R.styleable#TextView_digits
1042     * @attr ref android.R.styleable#TextView_phoneNumber
1043     * @attr ref android.R.styleable#TextView_inputMethod
1044     * @attr ref android.R.styleable#TextView_capitalize
1045     * @attr ref android.R.styleable#TextView_autoText
1046     */
1047    public void setKeyListener(KeyListener input) {
1048        setKeyListenerOnly(input);
1049        fixFocusableAndClickableSettings();
1050
1051        if (input != null) {
1052            try {
1053                mInputType = mInput.getInputType();
1054            } catch (IncompatibleClassChangeError e) {
1055                mInputType = EditorInfo.TYPE_CLASS_TEXT;
1056            }
1057            if ((mInputType&EditorInfo.TYPE_MASK_CLASS)
1058                    == EditorInfo.TYPE_CLASS_TEXT) {
1059                if (mSingleLine) {
1060                    mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE;
1061                } else {
1062                    mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE;
1063                }
1064            }
1065        } else {
1066            mInputType = EditorInfo.TYPE_NULL;
1067        }
1068
1069        InputMethodManager imm = InputMethodManager.peekInstance();
1070        if (imm != null) imm.restartInput(this);
1071    }
1072
1073    private void setKeyListenerOnly(KeyListener input) {
1074        mInput = input;
1075        if (mInput != null && !(mText instanceof Editable))
1076            setText(mText);
1077
1078        setFilters((Editable) mText, mFilters);
1079    }
1080
1081    /**
1082     * @return the movement method being used for this TextView.
1083     * This will frequently be null for non-EditText TextViews.
1084     */
1085    public final MovementMethod getMovementMethod() {
1086        return mMovement;
1087    }
1088
1089    /**
1090     * Sets the movement method (arrow key handler) to be used for
1091     * this TextView.  This can be null to disallow using the arrow keys
1092     * to move the cursor or scroll the view.
1093     * <p>
1094     * Be warned that if you want a TextView with a key listener or movement
1095     * method not to be focusable, or if you want a TextView without a
1096     * key listener or movement method to be focusable, you must call
1097     * {@link #setFocusable} again after calling this to get the focusability
1098     * back the way you want it.
1099     */
1100    public final void setMovementMethod(MovementMethod movement) {
1101        mMovement = movement;
1102
1103        if (mMovement != null && !(mText instanceof Spannable))
1104            setText(mText);
1105
1106        fixFocusableAndClickableSettings();
1107    }
1108
1109    private void fixFocusableAndClickableSettings() {
1110        if ((mMovement != null) || mInput != null) {
1111            setFocusable(true);
1112            setClickable(true);
1113            setLongClickable(true);
1114        } else {
1115            setFocusable(false);
1116            setClickable(false);
1117            setLongClickable(false);
1118        }
1119    }
1120
1121    /**
1122     * @return the current transformation method for this TextView.
1123     * This will frequently be null except for single-line and password
1124     * fields.
1125     */
1126    public final TransformationMethod getTransformationMethod() {
1127        return mTransformation;
1128    }
1129
1130    /**
1131     * Sets the transformation that is applied to the text that this
1132     * TextView is displaying.
1133     *
1134     * @attr ref android.R.styleable#TextView_password
1135     * @attr ref android.R.styleable#TextView_singleLine
1136     */
1137    public final void setTransformationMethod(TransformationMethod method) {
1138        if (method == mTransformation) {
1139            // Avoid the setText() below if the transformation is
1140            // the same.
1141            return;
1142        }
1143        if (mTransformation != null) {
1144            if (mText instanceof Spannable) {
1145                ((Spannable) mText).removeSpan(mTransformation);
1146            }
1147        }
1148
1149        mTransformation = method;
1150
1151        setText(mText);
1152    }
1153
1154    /**
1155     * Returns the top padding of the view, plus space for the top
1156     * Drawable if any.
1157     */
1158    public int getCompoundPaddingTop() {
1159        final Drawables dr = mDrawables;
1160        if (dr == null || dr.mDrawableTop == null) {
1161            return mPaddingTop;
1162        } else {
1163            return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop;
1164        }
1165    }
1166
1167    /**
1168     * Returns the bottom padding of the view, plus space for the bottom
1169     * Drawable if any.
1170     */
1171    public int getCompoundPaddingBottom() {
1172        final Drawables dr = mDrawables;
1173        if (dr == null || dr.mDrawableBottom == null) {
1174            return mPaddingBottom;
1175        } else {
1176            return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom;
1177        }
1178    }
1179
1180    /**
1181     * Returns the left padding of the view, plus space for the left
1182     * Drawable if any.
1183     */
1184    public int getCompoundPaddingLeft() {
1185        final Drawables dr = mDrawables;
1186        if (dr == null || dr.mDrawableLeft == null) {
1187            return mPaddingLeft;
1188        } else {
1189            return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft;
1190        }
1191    }
1192
1193    /**
1194     * Returns the right padding of the view, plus space for the right
1195     * Drawable if any.
1196     */
1197    public int getCompoundPaddingRight() {
1198        final Drawables dr = mDrawables;
1199        if (dr == null || dr.mDrawableRight == null) {
1200            return mPaddingRight;
1201        } else {
1202            return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight;
1203        }
1204    }
1205
1206    /**
1207     * Returns the extended top padding of the view, including both the
1208     * top Drawable if any and any extra space to keep more than maxLines
1209     * of text from showing.  It is only valid to call this after measuring.
1210     */
1211    public int getExtendedPaddingTop() {
1212        if (mMaxMode != LINES) {
1213            return getCompoundPaddingTop();
1214        }
1215
1216        if (mLayout.getLineCount() <= mMaximum) {
1217            return getCompoundPaddingTop();
1218        }
1219
1220        int top = getCompoundPaddingTop();
1221        int bottom = getCompoundPaddingBottom();
1222        int viewht = getHeight() - top - bottom;
1223        int layoutht = mLayout.getLineTop(mMaximum);
1224
1225        if (layoutht >= viewht) {
1226            return top;
1227        }
1228
1229        final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
1230        if (gravity == Gravity.TOP) {
1231            return top;
1232        } else if (gravity == Gravity.BOTTOM) {
1233            return top + viewht - layoutht;
1234        } else { // (gravity == Gravity.CENTER_VERTICAL)
1235            return top + (viewht - layoutht) / 2;
1236        }
1237    }
1238
1239    /**
1240     * Returns the extended bottom padding of the view, including both the
1241     * bottom Drawable if any and any extra space to keep more than maxLines
1242     * of text from showing.  It is only valid to call this after measuring.
1243     */
1244    public int getExtendedPaddingBottom() {
1245        if (mMaxMode != LINES) {
1246            return getCompoundPaddingBottom();
1247        }
1248
1249        if (mLayout.getLineCount() <= mMaximum) {
1250            return getCompoundPaddingBottom();
1251        }
1252
1253        int top = getCompoundPaddingTop();
1254        int bottom = getCompoundPaddingBottom();
1255        int viewht = getHeight() - top - bottom;
1256        int layoutht = mLayout.getLineTop(mMaximum);
1257
1258        if (layoutht >= viewht) {
1259            return bottom;
1260        }
1261
1262        final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
1263        if (gravity == Gravity.TOP) {
1264            return bottom + viewht - layoutht;
1265        } else if (gravity == Gravity.BOTTOM) {
1266            return bottom;
1267        } else { // (gravity == Gravity.CENTER_VERTICAL)
1268            return bottom + (viewht - layoutht) / 2;
1269        }
1270    }
1271
1272    /**
1273     * Returns the total left padding of the view, including the left
1274     * Drawable if any.
1275     */
1276    public int getTotalPaddingLeft() {
1277        return getCompoundPaddingLeft();
1278    }
1279
1280    /**
1281     * Returns the total right padding of the view, including the right
1282     * Drawable if any.
1283     */
1284    public int getTotalPaddingRight() {
1285        return getCompoundPaddingRight();
1286    }
1287
1288    /**
1289     * Returns the total top padding of the view, including the top
1290     * Drawable if any, the extra space to keep more than maxLines
1291     * from showing, and the vertical offset for gravity, if any.
1292     */
1293    public int getTotalPaddingTop() {
1294        return getExtendedPaddingTop() + getVerticalOffset(true);
1295    }
1296
1297    /**
1298     * Returns the total bottom padding of the view, including the bottom
1299     * Drawable if any, the extra space to keep more than maxLines
1300     * from showing, and the vertical offset for gravity, if any.
1301     */
1302    public int getTotalPaddingBottom() {
1303        return getExtendedPaddingBottom() + getBottomVerticalOffset(true);
1304    }
1305
1306    /**
1307     * Sets the Drawables (if any) to appear to the left of, above,
1308     * to the right of, and below the text.  Use null if you do not
1309     * want a Drawable there.  The Drawables must already have had
1310     * {@link Drawable#setBounds} called.
1311     *
1312     * @attr ref android.R.styleable#TextView_drawableLeft
1313     * @attr ref android.R.styleable#TextView_drawableTop
1314     * @attr ref android.R.styleable#TextView_drawableRight
1315     * @attr ref android.R.styleable#TextView_drawableBottom
1316     */
1317    public void setCompoundDrawables(Drawable left, Drawable top,
1318                                     Drawable right, Drawable bottom) {
1319        Drawables dr = mDrawables;
1320
1321        final boolean drawables = left != null || top != null
1322                || right != null || bottom != null;
1323
1324        if (!drawables) {
1325            // Clearing drawables...  can we free the data structure?
1326            if (dr != null) {
1327                if (dr.mDrawablePadding == 0) {
1328                    mDrawables = null;
1329                } else {
1330                    // We need to retain the last set padding, so just clear
1331                    // out all of the fields in the existing structure.
1332                    if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null);
1333                    dr.mDrawableLeft = null;
1334                    if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null);
1335                    dr.mDrawableTop = null;
1336                    if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null);
1337                    dr.mDrawableRight = null;
1338                    if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null);
1339                    dr.mDrawableBottom = null;
1340                    dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0;
1341                    dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0;
1342                    dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0;
1343                    dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0;
1344                }
1345            }
1346        } else {
1347            if (dr == null) {
1348                mDrawables = dr = new Drawables();
1349            }
1350
1351            if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) {
1352                dr.mDrawableLeft.setCallback(null);
1353            }
1354            dr.mDrawableLeft = left;
1355            if (dr.mDrawableTop != left && dr.mDrawableTop != null) {
1356                dr.mDrawableTop.setCallback(null);
1357            }
1358            dr.mDrawableTop = top;
1359            if (dr.mDrawableRight != left && dr.mDrawableRight != null) {
1360                dr.mDrawableRight.setCallback(null);
1361            }
1362            dr.mDrawableRight = right;
1363            if (dr.mDrawableBottom != left && dr.mDrawableBottom != null) {
1364                dr.mDrawableBottom.setCallback(null);
1365            }
1366            dr.mDrawableBottom = bottom;
1367
1368            final Rect compoundRect = dr.mCompoundRect;
1369            int[] state;
1370
1371            state = getDrawableState();
1372
1373            if (left != null) {
1374                left.setState(state);
1375                left.copyBounds(compoundRect);
1376                left.setCallback(this);
1377                dr.mDrawableSizeLeft = compoundRect.width();
1378                dr.mDrawableHeightLeft = compoundRect.height();
1379            } else {
1380                dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0;
1381            }
1382
1383            if (right != null) {
1384                right.setState(state);
1385                right.copyBounds(compoundRect);
1386                right.setCallback(this);
1387                dr.mDrawableSizeRight = compoundRect.width();
1388                dr.mDrawableHeightRight = compoundRect.height();
1389            } else {
1390                dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0;
1391            }
1392
1393            if (top != null) {
1394                top.setState(state);
1395                top.copyBounds(compoundRect);
1396                top.setCallback(this);
1397                dr.mDrawableSizeTop = compoundRect.height();
1398                dr.mDrawableWidthTop = compoundRect.width();
1399            } else {
1400                dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0;
1401            }
1402
1403            if (bottom != null) {
1404                bottom.setState(state);
1405                bottom.copyBounds(compoundRect);
1406                bottom.setCallback(this);
1407                dr.mDrawableSizeBottom = compoundRect.height();
1408                dr.mDrawableWidthBottom = compoundRect.width();
1409            } else {
1410                dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0;
1411            }
1412        }
1413
1414        invalidate();
1415        requestLayout();
1416    }
1417
1418    /**
1419     * Sets the Drawables (if any) to appear to the left of, above,
1420     * to the right of, and below the text.  Use 0 if you do not
1421     * want a Drawable there. The Drawables' bounds will be set to
1422     * their intrinsic bounds.
1423     *
1424     * @param left Resource identifier of the left Drawable.
1425     * @param top Resource identifier of the top Drawable.
1426     * @param right Resource identifier of the right Drawable.
1427     * @param bottom Resource identifier of the bottom Drawable.
1428     *
1429     * @attr ref android.R.styleable#TextView_drawableLeft
1430     * @attr ref android.R.styleable#TextView_drawableTop
1431     * @attr ref android.R.styleable#TextView_drawableRight
1432     * @attr ref android.R.styleable#TextView_drawableBottom
1433     */
1434    public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) {
1435        final Resources resources = getContext().getResources();
1436        setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null,
1437                top != 0 ? resources.getDrawable(top) : null,
1438                right != 0 ? resources.getDrawable(right) : null,
1439                bottom != 0 ? resources.getDrawable(bottom) : null);
1440    }
1441
1442    /**
1443     * Sets the Drawables (if any) to appear to the left of, above,
1444     * to the right of, and below the text.  Use null if you do not
1445     * want a Drawable there. The Drawables' bounds will be set to
1446     * their intrinsic bounds.
1447     *
1448     * @attr ref android.R.styleable#TextView_drawableLeft
1449     * @attr ref android.R.styleable#TextView_drawableTop
1450     * @attr ref android.R.styleable#TextView_drawableRight
1451     * @attr ref android.R.styleable#TextView_drawableBottom
1452     */
1453    public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top,
1454            Drawable right, Drawable bottom) {
1455
1456        if (left != null) {
1457            left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight());
1458        }
1459        if (right != null) {
1460            right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight());
1461        }
1462        if (top != null) {
1463            top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight());
1464        }
1465        if (bottom != null) {
1466            bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight());
1467        }
1468        setCompoundDrawables(left, top, right, bottom);
1469    }
1470
1471    /**
1472     * Returns drawables for the left, top, right, and bottom borders.
1473     */
1474    public Drawable[] getCompoundDrawables() {
1475        final Drawables dr = mDrawables;
1476        if (dr != null) {
1477            return new Drawable[] {
1478                dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom
1479            };
1480        } else {
1481            return new Drawable[] { null, null, null, null };
1482        }
1483    }
1484
1485    /**
1486     * Sets the size of the padding between the compound drawables and
1487     * the text.
1488     *
1489     * @attr ref android.R.styleable#TextView_drawablePadding
1490     */
1491    public void setCompoundDrawablePadding(int pad) {
1492        Drawables dr = mDrawables;
1493        if (pad == 0) {
1494            if (dr != null) {
1495                dr.mDrawablePadding = pad;
1496            }
1497        } else {
1498            if (dr == null) {
1499                mDrawables = dr = new Drawables();
1500            }
1501            dr.mDrawablePadding = pad;
1502        }
1503
1504        invalidate();
1505        requestLayout();
1506    }
1507
1508    /**
1509     * Returns the padding between the compound drawables and the text.
1510     */
1511    public int getCompoundDrawablePadding() {
1512        final Drawables dr = mDrawables;
1513        return dr != null ? dr.mDrawablePadding : 0;
1514    }
1515
1516    @Override
1517    public void setPadding(int left, int top, int right, int bottom) {
1518        if (left != mPaddingLeft ||
1519            right != mPaddingRight ||
1520            top != mPaddingTop ||
1521            bottom != mPaddingBottom) {
1522            nullLayouts();
1523        }
1524
1525        // the super call will requestLayout()
1526        super.setPadding(left, top, right, bottom);
1527        invalidate();
1528    }
1529
1530    /**
1531     * Gets the autolink mask of the text.  See {@link
1532     * android.text.util.Linkify#ALL Linkify.ALL} and peers for
1533     * possible values.
1534     *
1535     * @attr ref android.R.styleable#TextView_autoLink
1536     */
1537    public final int getAutoLinkMask() {
1538        return mAutoLinkMask;
1539    }
1540
1541    /**
1542     * Sets the text color, size, style, hint color, and highlight color
1543     * from the specified TextAppearance resource.
1544     */
1545    public void setTextAppearance(Context context, int resid) {
1546        TypedArray appearance =
1547            context.obtainStyledAttributes(resid,
1548                                           com.android.internal.R.styleable.TextAppearance);
1549
1550        int color;
1551        ColorStateList colors;
1552        int ts;
1553
1554        color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0);
1555        if (color != 0) {
1556            setHighlightColor(color);
1557        }
1558
1559        colors = appearance.getColorStateList(com.android.internal.R.styleable.
1560                                              TextAppearance_textColor);
1561        if (colors != null) {
1562            setTextColor(colors);
1563        }
1564
1565        ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable.
1566                                              TextAppearance_textSize, 0);
1567        if (ts != 0) {
1568            setRawTextSize(ts);
1569        }
1570
1571        colors = appearance.getColorStateList(com.android.internal.R.styleable.
1572                                              TextAppearance_textColorHint);
1573        if (colors != null) {
1574            setHintTextColor(colors);
1575        }
1576
1577        colors = appearance.getColorStateList(com.android.internal.R.styleable.
1578                                              TextAppearance_textColorLink);
1579        if (colors != null) {
1580            setLinkTextColor(colors);
1581        }
1582
1583        int typefaceIndex, styleIndex;
1584
1585        typefaceIndex = appearance.getInt(com.android.internal.R.styleable.
1586                                          TextAppearance_typeface, -1);
1587        styleIndex = appearance.getInt(com.android.internal.R.styleable.
1588                                       TextAppearance_textStyle, -1);
1589
1590        setTypefaceByIndex(typefaceIndex, styleIndex);
1591        appearance.recycle();
1592    }
1593
1594    /**
1595     * @return the size (in pixels) of the default text size in this TextView.
1596     */
1597    public float getTextSize() {
1598        return mTextPaint.getTextSize();
1599    }
1600
1601    /**
1602     * Set the default text size to the given value, interpreted as "scaled
1603     * pixel" units.  This size is adjusted based on the current density and
1604     * user font size preference.
1605     *
1606     * @param size The scaled pixel size.
1607     *
1608     * @attr ref android.R.styleable#TextView_textSize
1609     */
1610    @android.view.RemotableViewMethod
1611    public void setTextSize(float size) {
1612        setTextSize(TypedValue.COMPLEX_UNIT_SP, size);
1613    }
1614
1615    /**
1616     * Set the default text size to a given unit and value.  See {@link
1617     * TypedValue} for the possible dimension units.
1618     *
1619     * @param unit The desired dimension unit.
1620     * @param size The desired size in the given units.
1621     *
1622     * @attr ref android.R.styleable#TextView_textSize
1623     */
1624    public void setTextSize(int unit, float size) {
1625        Context c = getContext();
1626        Resources r;
1627
1628        if (c == null)
1629            r = Resources.getSystem();
1630        else
1631            r = c.getResources();
1632
1633        setRawTextSize(TypedValue.applyDimension(
1634            unit, size, r.getDisplayMetrics()));
1635    }
1636
1637    private void setRawTextSize(float size) {
1638        if (size != mTextPaint.getTextSize()) {
1639            mTextPaint.setTextSize(size);
1640
1641            if (mLayout != null) {
1642                nullLayouts();
1643                requestLayout();
1644                invalidate();
1645            }
1646        }
1647    }
1648
1649    /**
1650     * @return the extent by which text is currently being stretched
1651     * horizontally.  This will usually be 1.
1652     */
1653    public float getTextScaleX() {
1654        return mTextPaint.getTextScaleX();
1655    }
1656
1657    /**
1658     * Sets the extent by which text should be stretched horizontally.
1659     *
1660     * @attr ref android.R.styleable#TextView_textScaleX
1661     */
1662    @android.view.RemotableViewMethod
1663    public void setTextScaleX(float size) {
1664        if (size != mTextPaint.getTextScaleX()) {
1665            mUserSetTextScaleX = true;
1666            mTextPaint.setTextScaleX(size);
1667
1668            if (mLayout != null) {
1669                nullLayouts();
1670                requestLayout();
1671                invalidate();
1672            }
1673        }
1674    }
1675
1676    /**
1677     * Sets the typeface and style in which the text should be displayed.
1678     * Note that not all Typeface families actually have bold and italic
1679     * variants, so you may need to use
1680     * {@link #setTypeface(Typeface, int)} to get the appearance
1681     * that you actually want.
1682     *
1683     * @attr ref android.R.styleable#TextView_typeface
1684     * @attr ref android.R.styleable#TextView_textStyle
1685     */
1686    public void setTypeface(Typeface tf) {
1687        if (mTextPaint.getTypeface() != tf) {
1688            mTextPaint.setTypeface(tf);
1689
1690            if (mLayout != null) {
1691                nullLayouts();
1692                requestLayout();
1693                invalidate();
1694            }
1695        }
1696    }
1697
1698    /**
1699     * @return the current typeface and style in which the text is being
1700     * displayed.
1701     */
1702    public Typeface getTypeface() {
1703        return mTextPaint.getTypeface();
1704    }
1705
1706    /**
1707     * Sets the text color for all the states (normal, selected,
1708     * focused) to be this color.
1709     *
1710     * @attr ref android.R.styleable#TextView_textColor
1711     */
1712    @android.view.RemotableViewMethod
1713    public void setTextColor(int color) {
1714        mTextColor = ColorStateList.valueOf(color);
1715        updateTextColors();
1716    }
1717
1718    /**
1719     * Sets the text color.
1720     *
1721     * @attr ref android.R.styleable#TextView_textColor
1722     */
1723    public void setTextColor(ColorStateList colors) {
1724        if (colors == null) {
1725            throw new NullPointerException();
1726        }
1727
1728        mTextColor = colors;
1729        updateTextColors();
1730    }
1731
1732    /**
1733     * Return the set of text colors.
1734     *
1735     * @return Returns the set of text colors.
1736     */
1737    public final ColorStateList getTextColors() {
1738        return mTextColor;
1739    }
1740
1741    /**
1742     * <p>Return the current color selected for normal text.</p>
1743     *
1744     * @return Returns the current text color.
1745     */
1746    public final int getCurrentTextColor() {
1747        return mCurTextColor;
1748    }
1749
1750    /**
1751     * Sets the color used to display the selection highlight.
1752     *
1753     * @attr ref android.R.styleable#TextView_textColorHighlight
1754     */
1755    @android.view.RemotableViewMethod
1756    public void setHighlightColor(int color) {
1757        if (mHighlightColor != color) {
1758            mHighlightColor = color;
1759            invalidate();
1760        }
1761    }
1762
1763    /**
1764     * Gives the text a shadow of the specified radius and color, the specified
1765     * distance from its normal position.
1766     *
1767     * @attr ref android.R.styleable#TextView_shadowColor
1768     * @attr ref android.R.styleable#TextView_shadowDx
1769     * @attr ref android.R.styleable#TextView_shadowDy
1770     * @attr ref android.R.styleable#TextView_shadowRadius
1771     */
1772    public void setShadowLayer(float radius, float dx, float dy, int color) {
1773        mTextPaint.setShadowLayer(radius, dx, dy, color);
1774
1775        mShadowRadius = radius;
1776        mShadowDx = dx;
1777        mShadowDy = dy;
1778
1779        invalidate();
1780    }
1781
1782    /**
1783     * @return the base paint used for the text.  Please use this only to
1784     * consult the Paint's properties and not to change them.
1785     */
1786    public TextPaint getPaint() {
1787        return mTextPaint;
1788    }
1789
1790    /**
1791     * Sets the autolink mask of the text.  See {@link
1792     * android.text.util.Linkify#ALL Linkify.ALL} and peers for
1793     * possible values.
1794     *
1795     * @attr ref android.R.styleable#TextView_autoLink
1796     */
1797    @android.view.RemotableViewMethod
1798    public final void setAutoLinkMask(int mask) {
1799        mAutoLinkMask = mask;
1800    }
1801
1802    /**
1803     * Sets whether the movement method will automatically be set to
1804     * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been
1805     * set to nonzero and links are detected in {@link #setText}.
1806     * The default is true.
1807     *
1808     * @attr ref android.R.styleable#TextView_linksClickable
1809     */
1810    @android.view.RemotableViewMethod
1811    public final void setLinksClickable(boolean whether) {
1812        mLinksClickable = whether;
1813    }
1814
1815    /**
1816     * Returns whether the movement method will automatically be set to
1817     * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been
1818     * set to nonzero and links are detected in {@link #setText}.
1819     * The default is true.
1820     *
1821     * @attr ref android.R.styleable#TextView_linksClickable
1822     */
1823    public final boolean getLinksClickable() {
1824        return mLinksClickable;
1825    }
1826
1827    /**
1828     * Returns the list of URLSpans attached to the text
1829     * (by {@link Linkify} or otherwise) if any.  You can call
1830     * {@link URLSpan#getURL} on them to find where they link to
1831     * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd}
1832     * to find the region of the text they are attached to.
1833     */
1834    public URLSpan[] getUrls() {
1835        if (mText instanceof Spanned) {
1836            return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class);
1837        } else {
1838            return new URLSpan[0];
1839        }
1840    }
1841
1842    /**
1843     * Sets the color of the hint text.
1844     *
1845     * @attr ref android.R.styleable#TextView_textColorHint
1846     */
1847    @android.view.RemotableViewMethod
1848    public final void setHintTextColor(int color) {
1849        mHintTextColor = ColorStateList.valueOf(color);
1850        updateTextColors();
1851    }
1852
1853    /**
1854     * Sets the color of the hint text.
1855     *
1856     * @attr ref android.R.styleable#TextView_textColorHint
1857     */
1858    public final void setHintTextColor(ColorStateList colors) {
1859        mHintTextColor = colors;
1860        updateTextColors();
1861    }
1862
1863    /**
1864     * <p>Return the color used to paint the hint text.</p>
1865     *
1866     * @return Returns the list of hint text colors.
1867     */
1868    public final ColorStateList getHintTextColors() {
1869        return mHintTextColor;
1870    }
1871
1872    /**
1873     * <p>Return the current color selected to paint the hint text.</p>
1874     *
1875     * @return Returns the current hint text color.
1876     */
1877    public final int getCurrentHintTextColor() {
1878        return mHintTextColor != null ? mCurHintTextColor : mCurTextColor;
1879    }
1880
1881    /**
1882     * Sets the color of links in the text.
1883     *
1884     * @attr ref android.R.styleable#TextView_textColorLink
1885     */
1886    @android.view.RemotableViewMethod
1887    public final void setLinkTextColor(int color) {
1888        mLinkTextColor = ColorStateList.valueOf(color);
1889        updateTextColors();
1890    }
1891
1892    /**
1893     * Sets the color of links in the text.
1894     *
1895     * @attr ref android.R.styleable#TextView_textColorLink
1896     */
1897    public final void setLinkTextColor(ColorStateList colors) {
1898        mLinkTextColor = colors;
1899        updateTextColors();
1900    }
1901
1902    /**
1903     * <p>Returns the color used to paint links in the text.</p>
1904     *
1905     * @return Returns the list of link text colors.
1906     */
1907    public final ColorStateList getLinkTextColors() {
1908        return mLinkTextColor;
1909    }
1910
1911    /**
1912     * Sets the horizontal alignment of the text and the
1913     * vertical gravity that will be used when there is extra space
1914     * in the TextView beyond what is required for the text itself.
1915     *
1916     * @see android.view.Gravity
1917     * @attr ref android.R.styleable#TextView_gravity
1918     */
1919    public void setGravity(int gravity) {
1920        if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == 0) {
1921            gravity |= Gravity.LEFT;
1922        }
1923        if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) {
1924            gravity |= Gravity.TOP;
1925        }
1926
1927        boolean newLayout = false;
1928
1929        if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) !=
1930            (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK)) {
1931            newLayout = true;
1932        }
1933
1934        if (gravity != mGravity) {
1935            invalidate();
1936        }
1937
1938        mGravity = gravity;
1939
1940        if (mLayout != null && newLayout) {
1941            // XXX this is heavy-handed because no actual content changes.
1942            int want = mLayout.getWidth();
1943            int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth();
1944
1945            makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING,
1946                          mRight - mLeft - getCompoundPaddingLeft() -
1947                          getCompoundPaddingRight(), true);
1948        }
1949    }
1950
1951    /**
1952     * Returns the horizontal and vertical alignment of this TextView.
1953     *
1954     * @see android.view.Gravity
1955     * @attr ref android.R.styleable#TextView_gravity
1956     */
1957    public int getGravity() {
1958        return mGravity;
1959    }
1960
1961    /**
1962     * @return the flags on the Paint being used to display the text.
1963     * @see Paint#getFlags
1964     */
1965    public int getPaintFlags() {
1966        return mTextPaint.getFlags();
1967    }
1968
1969    /**
1970     * Sets flags on the Paint being used to display the text and
1971     * reflows the text if they are different from the old flags.
1972     * @see Paint#setFlags
1973     */
1974    @android.view.RemotableViewMethod
1975    public void setPaintFlags(int flags) {
1976        if (mTextPaint.getFlags() != flags) {
1977            mTextPaint.setFlags(flags);
1978
1979            if (mLayout != null) {
1980                nullLayouts();
1981                requestLayout();
1982                invalidate();
1983            }
1984        }
1985    }
1986
1987    /**
1988     * Sets whether the text should be allowed to be wider than the
1989     * View is.  If false, it will be wrapped to the width of the View.
1990     *
1991     * @attr ref android.R.styleable#TextView_scrollHorizontally
1992     */
1993    public void setHorizontallyScrolling(boolean whether) {
1994        mHorizontallyScrolling = whether;
1995
1996        if (mLayout != null) {
1997            nullLayouts();
1998            requestLayout();
1999            invalidate();
2000        }
2001    }
2002
2003    /**
2004     * Makes the TextView at least this many lines tall
2005     *
2006     * @attr ref android.R.styleable#TextView_minLines
2007     */
2008    @android.view.RemotableViewMethod
2009    public void setMinLines(int minlines) {
2010        mMinimum = minlines;
2011        mMinMode = LINES;
2012
2013        requestLayout();
2014        invalidate();
2015    }
2016
2017    /**
2018     * Makes the TextView at least this many pixels tall
2019     *
2020     * @attr ref android.R.styleable#TextView_minHeight
2021     */
2022    @android.view.RemotableViewMethod
2023    public void setMinHeight(int minHeight) {
2024        mMinimum = minHeight;
2025        mMinMode = PIXELS;
2026
2027        requestLayout();
2028        invalidate();
2029    }
2030
2031    /**
2032     * Makes the TextView at most this many lines tall
2033     *
2034     * @attr ref android.R.styleable#TextView_maxLines
2035     */
2036    @android.view.RemotableViewMethod
2037    public void setMaxLines(int maxlines) {
2038        mMaximum = maxlines;
2039        mMaxMode = LINES;
2040
2041        requestLayout();
2042        invalidate();
2043    }
2044
2045    /**
2046     * Makes the TextView at most this many pixels tall
2047     *
2048     * @attr ref android.R.styleable#TextView_maxHeight
2049     */
2050    @android.view.RemotableViewMethod
2051    public void setMaxHeight(int maxHeight) {
2052        mMaximum = maxHeight;
2053        mMaxMode = PIXELS;
2054
2055        requestLayout();
2056        invalidate();
2057    }
2058
2059    /**
2060     * Makes the TextView exactly this many lines tall
2061     *
2062     * @attr ref android.R.styleable#TextView_lines
2063     */
2064    @android.view.RemotableViewMethod
2065    public void setLines(int lines) {
2066        mMaximum = mMinimum = lines;
2067        mMaxMode = mMinMode = LINES;
2068
2069        requestLayout();
2070        invalidate();
2071    }
2072
2073    /**
2074     * Makes the TextView exactly this many pixels tall.
2075     * You could do the same thing by specifying this number in the
2076     * LayoutParams.
2077     *
2078     * @attr ref android.R.styleable#TextView_height
2079     */
2080    @android.view.RemotableViewMethod
2081    public void setHeight(int pixels) {
2082        mMaximum = mMinimum = pixels;
2083        mMaxMode = mMinMode = PIXELS;
2084
2085        requestLayout();
2086        invalidate();
2087    }
2088
2089    /**
2090     * Makes the TextView at least this many ems wide
2091     *
2092     * @attr ref android.R.styleable#TextView_minEms
2093     */
2094    @android.view.RemotableViewMethod
2095    public void setMinEms(int minems) {
2096        mMinWidth = minems;
2097        mMinWidthMode = EMS;
2098
2099        requestLayout();
2100        invalidate();
2101    }
2102
2103    /**
2104     * Makes the TextView at least this many pixels wide
2105     *
2106     * @attr ref android.R.styleable#TextView_minWidth
2107     */
2108    @android.view.RemotableViewMethod
2109    public void setMinWidth(int minpixels) {
2110        mMinWidth = minpixels;
2111        mMinWidthMode = PIXELS;
2112
2113        requestLayout();
2114        invalidate();
2115    }
2116
2117    /**
2118     * Makes the TextView at most this many ems wide
2119     *
2120     * @attr ref android.R.styleable#TextView_maxEms
2121     */
2122    @android.view.RemotableViewMethod
2123    public void setMaxEms(int maxems) {
2124        mMaxWidth = maxems;
2125        mMaxWidthMode = EMS;
2126
2127        requestLayout();
2128        invalidate();
2129    }
2130
2131    /**
2132     * Makes the TextView at most this many pixels wide
2133     *
2134     * @attr ref android.R.styleable#TextView_maxWidth
2135     */
2136    @android.view.RemotableViewMethod
2137    public void setMaxWidth(int maxpixels) {
2138        mMaxWidth = maxpixels;
2139        mMaxWidthMode = PIXELS;
2140
2141        requestLayout();
2142        invalidate();
2143    }
2144
2145    /**
2146     * Makes the TextView exactly this many ems wide
2147     *
2148     * @attr ref android.R.styleable#TextView_ems
2149     */
2150    @android.view.RemotableViewMethod
2151    public void setEms(int ems) {
2152        mMaxWidth = mMinWidth = ems;
2153        mMaxWidthMode = mMinWidthMode = EMS;
2154
2155        requestLayout();
2156        invalidate();
2157    }
2158
2159    /**
2160     * Makes the TextView exactly this many pixels wide.
2161     * You could do the same thing by specifying this number in the
2162     * LayoutParams.
2163     *
2164     * @attr ref android.R.styleable#TextView_width
2165     */
2166    @android.view.RemotableViewMethod
2167    public void setWidth(int pixels) {
2168        mMaxWidth = mMinWidth = pixels;
2169        mMaxWidthMode = mMinWidthMode = PIXELS;
2170
2171        requestLayout();
2172        invalidate();
2173    }
2174
2175
2176    /**
2177     * Sets line spacing for this TextView.  Each line will have its height
2178     * multiplied by <code>mult</code> and have <code>add</code> added to it.
2179     *
2180     * @attr ref android.R.styleable#TextView_lineSpacingExtra
2181     * @attr ref android.R.styleable#TextView_lineSpacingMultiplier
2182     */
2183    public void setLineSpacing(float add, float mult) {
2184        mSpacingMult = mult;
2185        mSpacingAdd = add;
2186
2187        if (mLayout != null) {
2188            nullLayouts();
2189            requestLayout();
2190            invalidate();
2191        }
2192    }
2193
2194    /**
2195     * Convenience method: Append the specified text to the TextView's
2196     * display buffer, upgrading it to BufferType.EDITABLE if it was
2197     * not already editable.
2198     */
2199    public final void append(CharSequence text) {
2200        append(text, 0, text.length());
2201    }
2202
2203    /**
2204     * Convenience method: Append the specified text slice to the TextView's
2205     * display buffer, upgrading it to BufferType.EDITABLE if it was
2206     * not already editable.
2207     */
2208    public void append(CharSequence text, int start, int end) {
2209        if (!(mText instanceof Editable)) {
2210            setText(mText, BufferType.EDITABLE);
2211        }
2212
2213        ((Editable) mText).append(text, start, end);
2214    }
2215
2216    private void updateTextColors() {
2217        boolean inval = false;
2218        int color = mTextColor.getColorForState(getDrawableState(), 0);
2219        if (color != mCurTextColor) {
2220            mCurTextColor = color;
2221            inval = true;
2222        }
2223        if (mLinkTextColor != null) {
2224            color = mLinkTextColor.getColorForState(getDrawableState(), 0);
2225            if (color != mTextPaint.linkColor) {
2226                mTextPaint.linkColor = color;
2227                inval = true;
2228            }
2229        }
2230        if (mHintTextColor != null) {
2231            color = mHintTextColor.getColorForState(getDrawableState(), 0);
2232            if (color != mCurHintTextColor && mText.length() == 0) {
2233                mCurHintTextColor = color;
2234                inval = true;
2235            }
2236        }
2237        if (inval) {
2238            invalidate();
2239        }
2240    }
2241
2242    @Override
2243    protected void drawableStateChanged() {
2244        super.drawableStateChanged();
2245        if (mTextColor != null && mTextColor.isStateful()
2246                || (mHintTextColor != null && mHintTextColor.isStateful())
2247                || (mLinkTextColor != null && mLinkTextColor.isStateful())) {
2248            updateTextColors();
2249        }
2250
2251        final Drawables dr = mDrawables;
2252        if (dr != null) {
2253            int[] state = getDrawableState();
2254            if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) {
2255                dr.mDrawableTop.setState(state);
2256            }
2257            if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) {
2258                dr.mDrawableBottom.setState(state);
2259            }
2260            if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) {
2261                dr.mDrawableLeft.setState(state);
2262            }
2263            if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) {
2264                dr.mDrawableRight.setState(state);
2265            }
2266        }
2267    }
2268
2269    /**
2270     * User interface state that is stored by TextView for implementing
2271     * {@link View#onSaveInstanceState}.
2272     */
2273    public static class SavedState extends BaseSavedState {
2274        int selStart;
2275        int selEnd;
2276        CharSequence text;
2277        boolean frozenWithFocus;
2278        CharSequence error;
2279
2280        SavedState(Parcelable superState) {
2281            super(superState);
2282        }
2283
2284        @Override
2285        public void writeToParcel(Parcel out, int flags) {
2286            super.writeToParcel(out, flags);
2287            out.writeInt(selStart);
2288            out.writeInt(selEnd);
2289            out.writeInt(frozenWithFocus ? 1 : 0);
2290            TextUtils.writeToParcel(text, out, flags);
2291
2292            if (error == null) {
2293                out.writeInt(0);
2294            } else {
2295                out.writeInt(1);
2296                TextUtils.writeToParcel(error, out, flags);
2297            }
2298        }
2299
2300        @Override
2301        public String toString() {
2302            String str = "TextView.SavedState{"
2303                    + Integer.toHexString(System.identityHashCode(this))
2304                    + " start=" + selStart + " end=" + selEnd;
2305            if (text != null) {
2306                str += " text=" + text;
2307            }
2308            return str + "}";
2309        }
2310
2311        public static final Parcelable.Creator<SavedState> CREATOR
2312                = new Parcelable.Creator<SavedState>() {
2313            public SavedState createFromParcel(Parcel in) {
2314                return new SavedState(in);
2315            }
2316
2317            public SavedState[] newArray(int size) {
2318                return new SavedState[size];
2319            }
2320        };
2321
2322        private SavedState(Parcel in) {
2323            super(in);
2324            selStart = in.readInt();
2325            selEnd = in.readInt();
2326            frozenWithFocus = (in.readInt() != 0);
2327            text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
2328
2329            if (in.readInt() != 0) {
2330                error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
2331            }
2332        }
2333    }
2334
2335    @Override
2336    public Parcelable onSaveInstanceState() {
2337        Parcelable superState = super.onSaveInstanceState();
2338
2339        // Save state if we are forced to
2340        boolean save = mFreezesText;
2341        int start = 0;
2342        int end = 0;
2343
2344        if (mText != null) {
2345            start = Selection.getSelectionStart(mText);
2346            end = Selection.getSelectionEnd(mText);
2347            if (start >= 0 || end >= 0) {
2348                // Or save state if there is a selection
2349                save = true;
2350            }
2351        }
2352
2353        if (save) {
2354            SavedState ss = new SavedState(superState);
2355            // XXX Should also save the current scroll position!
2356            ss.selStart = start;
2357            ss.selEnd = end;
2358
2359            if (mText instanceof Spanned) {
2360                /*
2361                 * Calling setText() strips off any ChangeWatchers;
2362                 * strip them now to avoid leaking references.
2363                 * But do it to a copy so that if there are any
2364                 * further changes to the text of this view, it
2365                 * won't get into an inconsistent state.
2366                 */
2367
2368                Spannable sp = new SpannableString(mText);
2369
2370                for (ChangeWatcher cw :
2371                     sp.getSpans(0, sp.length(), ChangeWatcher.class)) {
2372                    sp.removeSpan(cw);
2373                }
2374
2375                ss.text = sp;
2376            } else {
2377                ss.text = mText.toString();
2378            }
2379
2380            if (isFocused() && start >= 0 && end >= 0) {
2381                ss.frozenWithFocus = true;
2382            }
2383
2384            ss.error = mError;
2385
2386            return ss;
2387        }
2388
2389        return superState;
2390    }
2391
2392    @Override
2393    public void onRestoreInstanceState(Parcelable state) {
2394        if (!(state instanceof SavedState)) {
2395            super.onRestoreInstanceState(state);
2396            return;
2397        }
2398
2399        SavedState ss = (SavedState)state;
2400        super.onRestoreInstanceState(ss.getSuperState());
2401
2402        // XXX restore buffer type too, as well as lots of other stuff
2403        if (ss.text != null) {
2404            setText(ss.text);
2405        }
2406
2407        if (ss.selStart >= 0 && ss.selEnd >= 0) {
2408            if (mText instanceof Spannable) {
2409                int len = mText.length();
2410
2411                if (ss.selStart > len || ss.selEnd > len) {
2412                    String restored = "";
2413
2414                    if (ss.text != null) {
2415                        restored = "(restored) ";
2416                    }
2417
2418                    Log.e("TextView", "Saved cursor position " + ss.selStart +
2419                          "/" + ss.selEnd + " out of range for " + restored +
2420                          "text " + mText);
2421                } else {
2422                    Selection.setSelection((Spannable) mText, ss.selStart,
2423                                           ss.selEnd);
2424
2425                    if (ss.frozenWithFocus) {
2426                        mFrozenWithFocus = true;
2427                    }
2428                }
2429            }
2430        }
2431
2432        if (ss.error != null) {
2433            setError(ss.error);
2434        }
2435    }
2436
2437    /**
2438     * Control whether this text view saves its entire text contents when
2439     * freezing to an icicle, in addition to dynamic state such as cursor
2440     * position.  By default this is false, not saving the text.  Set to true
2441     * if the text in the text view is not being saved somewhere else in
2442     * persistent storage (such as in a content provider) so that if the
2443     * view is later thawed the user will not lose their data.
2444     *
2445     * @param freezesText Controls whether a frozen icicle should include the
2446     * entire text data: true to include it, false to not.
2447     *
2448     * @attr ref android.R.styleable#TextView_freezesText
2449     */
2450    @android.view.RemotableViewMethod
2451    public void setFreezesText(boolean freezesText) {
2452        mFreezesText = freezesText;
2453    }
2454
2455    /**
2456     * Return whether this text view is including its entire text contents
2457     * in frozen icicles.
2458     *
2459     * @return Returns true if text is included, false if it isn't.
2460     *
2461     * @see #setFreezesText
2462     */
2463    public boolean getFreezesText() {
2464        return mFreezesText;
2465    }
2466
2467    ///////////////////////////////////////////////////////////////////////////
2468
2469    /**
2470     * Sets the Factory used to create new Editables.
2471     */
2472    public final void setEditableFactory(Editable.Factory factory) {
2473        mEditableFactory = factory;
2474        setText(mText);
2475    }
2476
2477    /**
2478     * Sets the Factory used to create new Spannables.
2479     */
2480    public final void setSpannableFactory(Spannable.Factory factory) {
2481        mSpannableFactory = factory;
2482        setText(mText);
2483    }
2484
2485    /**
2486     * Sets the string value of the TextView. TextView <em>does not</em> accept
2487     * HTML-like formatting, which you can do with text strings in XML resource files.
2488     * To style your strings, attach android.text.style.* objects to a
2489     * {@link android.text.SpannableString SpannableString}, or see the
2490     * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources">
2491     * Available Resource Types</a> documentation for an example of setting
2492     * formatted text in the XML resource file.
2493     *
2494     * @attr ref android.R.styleable#TextView_text
2495     */
2496    @android.view.RemotableViewMethod
2497    public final void setText(CharSequence text) {
2498        setText(text, mBufferType);
2499    }
2500
2501    /**
2502     * Like {@link #setText(CharSequence)},
2503     * except that the cursor position (if any) is retained in the new text.
2504     *
2505     * @param text The new text to place in the text view.
2506     *
2507     * @see #setText(CharSequence)
2508     */
2509    @android.view.RemotableViewMethod
2510    public final void setTextKeepState(CharSequence text) {
2511        setTextKeepState(text, mBufferType);
2512    }
2513
2514    /**
2515     * Sets the text that this TextView is to display (see
2516     * {@link #setText(CharSequence)}) and also sets whether it is stored
2517     * in a styleable/spannable buffer and whether it is editable.
2518     *
2519     * @attr ref android.R.styleable#TextView_text
2520     * @attr ref android.R.styleable#TextView_bufferType
2521     */
2522    public void setText(CharSequence text, BufferType type) {
2523        setText(text, type, true, 0);
2524
2525        if (mCharWrapper != null) {
2526            mCharWrapper.mChars = null;
2527        }
2528    }
2529
2530    private void setText(CharSequence text, BufferType type,
2531                         boolean notifyBefore, int oldlen) {
2532        if (text == null) {
2533            text = "";
2534        }
2535
2536        if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f);
2537
2538        if (text instanceof Spanned &&
2539            ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) {
2540            setHorizontalFadingEdgeEnabled(true);
2541            setEllipsize(TextUtils.TruncateAt.MARQUEE);
2542        }
2543
2544        int n = mFilters.length;
2545        for (int i = 0; i < n; i++) {
2546            CharSequence out = mFilters[i].filter(text, 0, text.length(),
2547                                                  EMPTY_SPANNED, 0, 0);
2548            if (out != null) {
2549                text = out;
2550            }
2551        }
2552
2553        if (notifyBefore) {
2554            if (mText != null) {
2555                oldlen = mText.length();
2556                sendBeforeTextChanged(mText, 0, oldlen, text.length());
2557            } else {
2558                sendBeforeTextChanged("", 0, 0, text.length());
2559            }
2560        }
2561
2562        boolean needEditableForNotification = false;
2563
2564        if (mListeners != null && mListeners.size() != 0) {
2565            needEditableForNotification = true;
2566        }
2567
2568        if (type == BufferType.EDITABLE || mInput != null ||
2569            needEditableForNotification) {
2570            Editable t = mEditableFactory.newEditable(text);
2571            text = t;
2572            setFilters(t, mFilters);
2573            InputMethodManager imm = InputMethodManager.peekInstance();
2574            if (imm != null) imm.restartInput(this);
2575        } else if (type == BufferType.SPANNABLE || mMovement != null) {
2576            text = mSpannableFactory.newSpannable(text);
2577        } else if (!(text instanceof CharWrapper)) {
2578            text = TextUtils.stringOrSpannedString(text);
2579        }
2580
2581        if (mAutoLinkMask != 0) {
2582            Spannable s2;
2583
2584            if (type == BufferType.EDITABLE || text instanceof Spannable) {
2585                s2 = (Spannable) text;
2586            } else {
2587                s2 = mSpannableFactory.newSpannable(text);
2588            }
2589
2590            if (Linkify.addLinks(s2, mAutoLinkMask)) {
2591                text = s2;
2592                type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE;
2593
2594                /*
2595                 * We must go ahead and set the text before changing the
2596                 * movement method, because setMovementMethod() may call
2597                 * setText() again to try to upgrade the buffer type.
2598                 */
2599                mText = text;
2600
2601                if (mLinksClickable) {
2602                    setMovementMethod(LinkMovementMethod.getInstance());
2603                }
2604            }
2605        }
2606
2607        mBufferType = type;
2608        mText = text;
2609
2610        if (mTransformation == null)
2611            mTransformed = text;
2612        else
2613            mTransformed = mTransformation.getTransformation(text, this);
2614
2615        final int textLength = text.length();
2616
2617        if (text instanceof Spannable) {
2618            Spannable sp = (Spannable) text;
2619
2620            // Remove any ChangeWatchers that might have come
2621            // from other TextViews.
2622            final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class);
2623            final int count = watchers.length;
2624            for (int i = 0; i < count; i++)
2625                sp.removeSpan(watchers[i]);
2626
2627            if (mChangeWatcher == null)
2628                mChangeWatcher = new ChangeWatcher();
2629
2630            sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE |
2631                       (PRIORITY << Spanned.SPAN_PRIORITY_SHIFT));
2632
2633            if (mInput != null) {
2634                sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
2635            }
2636
2637            if (mTransformation != null) {
2638                sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
2639
2640            }
2641
2642            if (mMovement != null) {
2643                mMovement.initialize(this, (Spannable) text);
2644
2645                /*
2646                 * Initializing the movement method will have set the
2647                 * selection, so reset mSelectionMoved to keep that from
2648                 * interfering with the normal on-focus selection-setting.
2649                 */
2650                mSelectionMoved = false;
2651            }
2652        }
2653
2654        if (mLayout != null) {
2655            checkForRelayout();
2656        }
2657
2658        sendOnTextChanged(text, 0, oldlen, textLength);
2659        onTextChanged(text, 0, oldlen, textLength);
2660
2661        if (needEditableForNotification) {
2662            sendAfterTextChanged((Editable) text);
2663        }
2664    }
2665
2666    /**
2667     * Sets the TextView to display the specified slice of the specified
2668     * char array.  You must promise that you will not change the contents
2669     * of the array except for right before another call to setText(),
2670     * since the TextView has no way to know that the text
2671     * has changed and that it needs to invalidate and re-layout.
2672     */
2673    public final void setText(char[] text, int start, int len) {
2674        int oldlen = 0;
2675
2676        if (start < 0 || len < 0 || start + len > text.length) {
2677            throw new IndexOutOfBoundsException(start + ", " + len);
2678        }
2679
2680        /*
2681         * We must do the before-notification here ourselves because if
2682         * the old text is a CharWrapper we destroy it before calling
2683         * into the normal path.
2684         */
2685        if (mText != null) {
2686            oldlen = mText.length();
2687            sendBeforeTextChanged(mText, 0, oldlen, len);
2688        } else {
2689            sendBeforeTextChanged("", 0, 0, len);
2690        }
2691
2692        if (mCharWrapper == null) {
2693            mCharWrapper = new CharWrapper(text, start, len);
2694        } else {
2695            mCharWrapper.set(text, start, len);
2696        }
2697
2698        setText(mCharWrapper, mBufferType, false, oldlen);
2699    }
2700
2701    private static class CharWrapper
2702            implements CharSequence, GetChars, GraphicsOperations {
2703        private char[] mChars;
2704        private int mStart, mLength;
2705
2706        public CharWrapper(char[] chars, int start, int len) {
2707            mChars = chars;
2708            mStart = start;
2709            mLength = len;
2710        }
2711
2712        /* package */ void set(char[] chars, int start, int len) {
2713            mChars = chars;
2714            mStart = start;
2715            mLength = len;
2716        }
2717
2718        public int length() {
2719            return mLength;
2720        }
2721
2722        public char charAt(int off) {
2723            return mChars[off + mStart];
2724        }
2725
2726        public String toString() {
2727            return new String(mChars, mStart, mLength);
2728        }
2729
2730        public CharSequence subSequence(int start, int end) {
2731            if (start < 0 || end < 0 || start > mLength || end > mLength) {
2732                throw new IndexOutOfBoundsException(start + ", " + end);
2733            }
2734
2735            return new String(mChars, start + mStart, end - start);
2736        }
2737
2738        public void getChars(int start, int end, char[] buf, int off) {
2739            if (start < 0 || end < 0 || start > mLength || end > mLength) {
2740                throw new IndexOutOfBoundsException(start + ", " + end);
2741            }
2742
2743            System.arraycopy(mChars, start + mStart, buf, off, end - start);
2744        }
2745
2746        public void drawText(Canvas c, int start, int end,
2747                             float x, float y, Paint p) {
2748            c.drawText(mChars, start + mStart, end - start, x, y, p);
2749        }
2750
2751        public float measureText(int start, int end, Paint p) {
2752            return p.measureText(mChars, start + mStart, end - start);
2753        }
2754
2755        public int getTextWidths(int start, int end, float[] widths, Paint p) {
2756            return p.getTextWidths(mChars, start + mStart, end - start, widths);
2757        }
2758    }
2759
2760    /**
2761     * Like {@link #setText(CharSequence, android.widget.TextView.BufferType)},
2762     * except that the cursor position (if any) is retained in the new text.
2763     *
2764     * @see #setText(CharSequence, android.widget.TextView.BufferType)
2765     */
2766    public final void setTextKeepState(CharSequence text, BufferType type) {
2767        int start = getSelectionStart();
2768        int end = getSelectionEnd();
2769        int len = text.length();
2770
2771        setText(text, type);
2772
2773        if (start >= 0 || end >= 0) {
2774            if (mText instanceof Spannable) {
2775                Selection.setSelection((Spannable) mText,
2776                                       Math.max(0, Math.min(start, len)),
2777                                       Math.max(0, Math.min(end, len)));
2778            }
2779        }
2780    }
2781
2782    @android.view.RemotableViewMethod
2783    public final void setText(int resid) {
2784        setText(getContext().getResources().getText(resid));
2785    }
2786
2787    public final void setText(int resid, BufferType type) {
2788        setText(getContext().getResources().getText(resid), type);
2789    }
2790
2791    /**
2792     * Sets the text to be displayed when the text of the TextView is empty.
2793     * Null means to use the normal empty text. The hint does not currently
2794     * participate in determining the size of the view.
2795     *
2796     * This method is deprecated. Use {link #setHint(int, String)} or
2797     * {link #setHint(CharSequence, String)} instead.
2798     *
2799     * @attr ref android.R.styleable#TextView_hint
2800     */
2801    @android.view.RemotableViewMethod
2802    public final void setHint(CharSequence hint) {
2803        mHint = TextUtils.stringOrSpannedString(hint);
2804
2805        if (mLayout != null) {
2806            checkForRelayout();
2807        }
2808
2809        if (mText.length() == 0)
2810            invalidate();
2811    }
2812
2813    /**
2814     * Sets the text to be displayed when the text of the TextView is empty,
2815     * from a resource.
2816     *
2817     * This method is deprecated. Use {link #setHint(int, String)} or
2818     * {link #setHint(CharSequence, String)} instead.
2819     *
2820     * @attr ref android.R.styleable#TextView_hint
2821     */
2822    @android.view.RemotableViewMethod
2823    public final void setHint(int resid) {
2824        setHint(getContext().getResources().getText(resid));
2825    }
2826
2827    /**
2828     * Returns the hint that is displayed when the text of the TextView
2829     * is empty.
2830     *
2831     * @attr ref android.R.styleable#TextView_hint
2832     */
2833    @ViewDebug.CapturedViewProperty
2834    public CharSequence getHint() {
2835        return mHint;
2836    }
2837
2838    /**
2839     * Set the type of the content with a constant as defined for
2840     * {@link EditorInfo#inputType}.  This will take care of changing
2841     * the key listener, by calling {@link #setKeyListener(KeyListener)}, to
2842     * match the given content type.  If the given content type is
2843     * {@link EditorInfo#TYPE_NULL} then a soft keyboard will
2844     * not be displayed for this text view.
2845     *
2846     * @see #getInputType()
2847     * @see #setRawInputType(int)
2848     * @see android.text.InputType
2849     * @attr ref android.R.styleable#TextView_inputType
2850     */
2851    public void setInputType(int type) {
2852        setInputType(type, false);
2853        final int variation = type&(EditorInfo.TYPE_MASK_CLASS
2854                |EditorInfo.TYPE_MASK_VARIATION);
2855        final boolean isPassword = variation
2856                == (EditorInfo.TYPE_CLASS_TEXT
2857                        |EditorInfo.TYPE_TEXT_VARIATION_PASSWORD);
2858        boolean forceUpdate = false;
2859        if (isPassword) {
2860            setTransformationMethod(PasswordTransformationMethod.getInstance());
2861            setTypefaceByIndex(MONOSPACE, 0);
2862        } else if (mTransformation == PasswordTransformationMethod.getInstance()) {
2863            // We need to clean up if we were previously in password mode.
2864            if (variation != (EditorInfo.TYPE_CLASS_TEXT
2865                        |EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD)) {
2866                setTypefaceByIndex(-1, -1);
2867            }
2868            forceUpdate = true;
2869        } else if (variation == (EditorInfo.TYPE_CLASS_TEXT
2870                        |EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD)) {
2871            setTypefaceByIndex(MONOSPACE, 0);
2872        }
2873
2874        boolean multiLine = (type&(EditorInfo.TYPE_MASK_CLASS
2875                        | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) ==
2876                (EditorInfo.TYPE_CLASS_TEXT
2877                        | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE);
2878
2879        // We need to update the single line mode if it has changed or we
2880        // were previously in password mode.
2881        if (mSingleLine == multiLine || forceUpdate) {
2882            // Change single line mode, but only change the transformation if
2883            // we are not in password mode.
2884            applySingleLine(!multiLine, !isPassword);
2885        }
2886
2887        InputMethodManager imm = InputMethodManager.peekInstance();
2888        if (imm != null) imm.restartInput(this);
2889    }
2890
2891    /**
2892     * Directly change the content type integer of the text view, without
2893     * modifying any other state.
2894     * @see #setInputType(int)
2895     * @see android.text.InputType
2896     * @attr ref android.R.styleable#TextView_inputType
2897     */
2898    public void setRawInputType(int type) {
2899        mInputType = type;
2900    }
2901
2902    private void setInputType(int type, boolean direct) {
2903        final int cls = type & EditorInfo.TYPE_MASK_CLASS;
2904        KeyListener input;
2905        if (cls == EditorInfo.TYPE_CLASS_TEXT) {
2906            boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT)
2907                    != 0;
2908            TextKeyListener.Capitalize cap;
2909            if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) {
2910                cap = TextKeyListener.Capitalize.CHARACTERS;
2911            } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) {
2912                cap = TextKeyListener.Capitalize.WORDS;
2913            } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) {
2914                cap = TextKeyListener.Capitalize.SENTENCES;
2915            } else {
2916                cap = TextKeyListener.Capitalize.NONE;
2917            }
2918            input = TextKeyListener.getInstance(autotext, cap);
2919        } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) {
2920            input = DigitsKeyListener.getInstance(
2921                    (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0,
2922                    (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0);
2923        } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) {
2924            switch (type & EditorInfo.TYPE_MASK_VARIATION) {
2925                case EditorInfo.TYPE_DATETIME_VARIATION_DATE:
2926                    input = DateKeyListener.getInstance();
2927                    break;
2928                case EditorInfo.TYPE_DATETIME_VARIATION_TIME:
2929                    input = TimeKeyListener.getInstance();
2930                    break;
2931                default:
2932                    input = DateTimeKeyListener.getInstance();
2933                    break;
2934            }
2935        } else if (cls == EditorInfo.TYPE_CLASS_PHONE) {
2936            input = DialerKeyListener.getInstance();
2937        } else {
2938            input = TextKeyListener.getInstance();
2939        }
2940        mInputType = type;
2941        if (direct) mInput = input;
2942        else {
2943            setKeyListenerOnly(input);
2944        }
2945    }
2946
2947    /**
2948     * Get the type of the content.
2949     *
2950     * @see #setInputType(int)
2951     * @see android.text.InputType
2952     */
2953    public int getInputType() {
2954        return mInputType;
2955    }
2956
2957    /**
2958     * Change the editor type integer associated with the text view, which
2959     * will be reported to an IME with {@link EditorInfo#imeOptions} when it
2960     * has focus.
2961     * @see #getImeOptions
2962     * @see android.view.inputmethod.EditorInfo
2963     * @attr ref android.R.styleable#TextView_imeOptions
2964     */
2965    public void setImeOptions(int imeOptions) {
2966        if (mInputContentType == null) {
2967            mInputContentType = new InputContentType();
2968        }
2969        mInputContentType.imeOptions = imeOptions;
2970    }
2971
2972    /**
2973     * Get the type of the IME editor.
2974     *
2975     * @see #setImeOptions(int)
2976     * @see android.view.inputmethod.EditorInfo
2977     */
2978    public int getImeOptions() {
2979        return mInputContentType != null
2980                ? mInputContentType.imeOptions : EditorInfo.IME_NULL;
2981    }
2982
2983    /**
2984     * Change the custom IME action associated with the text view, which
2985     * will be reported to an IME with {@link EditorInfo#actionLabel}
2986     * and {@link EditorInfo#actionId} when it has focus.
2987     * @see #getImeActionLabel
2988     * @see #getImeActionId
2989     * @see android.view.inputmethod.EditorInfo
2990     * @attr ref android.R.styleable#TextView_imeActionLabel
2991     * @attr ref android.R.styleable#TextView_imeActionId
2992     */
2993    public void setImeActionLabel(CharSequence label, int actionId) {
2994        if (mInputContentType == null) {
2995            mInputContentType = new InputContentType();
2996        }
2997        mInputContentType.imeActionLabel = label;
2998        mInputContentType.imeActionId = actionId;
2999    }
3000
3001    /**
3002     * Get the IME action label previous set with {@link #setImeActionLabel}.
3003     *
3004     * @see #setImeActionLabel
3005     * @see android.view.inputmethod.EditorInfo
3006     */
3007    public CharSequence getImeActionLabel() {
3008        return mInputContentType != null
3009                ? mInputContentType.imeActionLabel : null;
3010    }
3011
3012    /**
3013     * Get the IME action ID previous set with {@link #setImeActionLabel}.
3014     *
3015     * @see #setImeActionLabel
3016     * @see android.view.inputmethod.EditorInfo
3017     */
3018    public int getImeActionId() {
3019        return mInputContentType != null
3020                ? mInputContentType.imeActionId : 0;
3021    }
3022
3023    /**
3024     * Set a special listener to be called when an action is performed
3025     * on the text view.  This will be called when the enter key is pressed,
3026     * or when an action supplied to the IME is selected by the user.  Setting
3027     * this means that the normal hard key event will not insert a newline
3028     * into the text view, even if it is multi-line; holding down the ALT
3029     * modifier will, however, allow the user to insert a newline character.
3030     */
3031    public void setOnEditorActionListener(OnEditorActionListener l) {
3032        if (mInputContentType == null) {
3033            mInputContentType = new InputContentType();
3034        }
3035        mInputContentType.onEditorActionListener = l;
3036    }
3037
3038    /**
3039     * Called when an attached input method calls
3040     * {@link InputConnection#performEditorAction(int)
3041     * InputConnection.performEditorAction()}
3042     * for this text view.  The default implementation will call your action
3043     * listener supplied to {@link #setOnEditorActionListener}, or perform
3044     * a standard operation for {@link EditorInfo#IME_ACTION_NEXT
3045     * EditorInfo.IME_ACTION_NEXT} or {@link EditorInfo#IME_ACTION_DONE
3046     * EditorInfo.IME_ACTION_DONE}.
3047     *
3048     * <p>For backwards compatibility, if no IME options have been set and the
3049     * text view would not normally advance focus on enter, then
3050     * the NEXT and DONE actions received here will be turned into an enter
3051     * key down/up pair to go through the normal key handling.
3052     *
3053     * @param actionCode The code of the action being performed.
3054     *
3055     * @see #setOnEditorActionListener
3056     */
3057    public void onEditorAction(int actionCode) {
3058        final InputContentType ict = mInputContentType;
3059        if (ict != null) {
3060            if (ict.onEditorActionListener != null) {
3061                if (ict.onEditorActionListener.onEditorAction(this,
3062                        actionCode, null)) {
3063                    return;
3064                }
3065            }
3066
3067            // This is the handling for some default action.
3068            // Note that for backwards compatibility we don't do this
3069            // default handling if explicit ime options have not been given,
3070            // instead turning this into the normal enter key codes that an
3071            // app may be expecting.
3072            if (actionCode == EditorInfo.IME_ACTION_NEXT) {
3073                View v = focusSearch(FOCUS_DOWN);
3074                if (v != null) {
3075                    if (!v.requestFocus(FOCUS_DOWN)) {
3076                        throw new IllegalStateException("focus search returned a view " +
3077                                "that wasn't able to take focus!");
3078                    }
3079                }
3080                return;
3081
3082            } else if (actionCode == EditorInfo.IME_ACTION_DONE) {
3083                InputMethodManager imm = InputMethodManager.peekInstance();
3084                if (imm != null) {
3085                    imm.hideSoftInputFromWindow(getWindowToken(), 0);
3086                }
3087                return;
3088            }
3089        }
3090
3091        Handler h = getHandler();
3092        if (h != null) {
3093            long eventTime = SystemClock.uptimeMillis();
3094            h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME,
3095                    new KeyEvent(eventTime, eventTime,
3096                    KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 0, 0,
3097                    KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE
3098                    | KeyEvent.FLAG_EDITOR_ACTION)));
3099            h.sendMessage(h.obtainMessage(ViewRoot.DISPATCH_KEY_FROM_IME,
3100                    new KeyEvent(SystemClock.uptimeMillis(), eventTime,
3101                    KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 0, 0,
3102                    KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE
3103                    | KeyEvent.FLAG_EDITOR_ACTION)));
3104        }
3105    }
3106
3107    /**
3108     * Set the private content type of the text, which is the
3109     * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions}
3110     * field that will be filled in when creating an input connection.
3111     *
3112     * @see #getPrivateImeOptions()
3113     * @see EditorInfo#privateImeOptions
3114     * @attr ref android.R.styleable#TextView_privateImeOptions
3115     */
3116    public void setPrivateImeOptions(String type) {
3117        if (mInputContentType == null) mInputContentType = new InputContentType();
3118        mInputContentType.privateImeOptions = type;
3119    }
3120
3121    /**
3122     * Get the private type of the content.
3123     *
3124     * @see #setPrivateImeOptions(String)
3125     * @see EditorInfo#privateImeOptions
3126     */
3127    public String getPrivateImeOptions() {
3128        return mInputContentType != null
3129                ? mInputContentType.privateImeOptions : null;
3130    }
3131
3132    /**
3133     * Set the extra input data of the text, which is the
3134     * {@link EditorInfo#extras TextBoxAttribute.extras}
3135     * Bundle that will be filled in when creating an input connection.  The
3136     * given integer is the resource ID of an XML resource holding an
3137     * {@link android.R.styleable#InputExtras &lt;input-extras&gt;} XML tree.
3138     *
3139     * @see #getInputExtras(boolean)
3140     * @see EditorInfo#extras
3141     * @attr ref android.R.styleable#TextView_editorExtras
3142     */
3143    public void setInputExtras(int xmlResId)
3144            throws XmlPullParserException, IOException {
3145        XmlResourceParser parser = getResources().getXml(xmlResId);
3146        if (mInputContentType == null) mInputContentType = new InputContentType();
3147        mInputContentType.extras = new Bundle();
3148        getResources().parseBundleExtras(parser, mInputContentType.extras);
3149    }
3150
3151    /**
3152     * Retrieve the input extras currently associated with the text view, which
3153     * can be viewed as well as modified.
3154     *
3155     * @param create If true, the extras will be created if they don't already
3156     * exist.  Otherwise, null will be returned if none have been created.
3157     * @see #setInputExtras(int)View
3158     * @see EditorInfo#extras
3159     * @attr ref android.R.styleable#TextView_editorExtras
3160     */
3161    public Bundle getInputExtras(boolean create) {
3162        if (mInputContentType == null) {
3163            if (!create) return null;
3164            mInputContentType = new InputContentType();
3165        }
3166        if (mInputContentType.extras == null) {
3167            if (!create) return null;
3168            mInputContentType.extras = new Bundle();
3169        }
3170        return mInputContentType.extras;
3171    }
3172
3173    /**
3174     * Returns the error message that was set to be displayed with
3175     * {@link #setError}, or <code>null</code> if no error was set
3176     * or if it the error was cleared by the widget after user input.
3177     */
3178    public CharSequence getError() {
3179        return mError;
3180    }
3181
3182    /**
3183     * Sets the right-hand compound drawable of the TextView to the "error"
3184     * icon and sets an error message that will be displayed in a popup when
3185     * the TextView has focus.  The icon and error message will be reset to
3186     * null when any key events cause changes to the TextView's text.  If the
3187     * <code>error</code> is <code>null</code>, the error message and icon
3188     * will be cleared.
3189     */
3190    @android.view.RemotableViewMethod
3191    public void setError(CharSequence error) {
3192        if (error == null) {
3193            setError(null, null);
3194        } else {
3195            Drawable dr = getContext().getResources().
3196                getDrawable(com.android.internal.R.drawable.
3197                            indicator_input_error);
3198
3199            dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight());
3200            setError(error, dr);
3201        }
3202    }
3203
3204    /**
3205     * Sets the right-hand compound drawable of the TextView to the specified
3206     * icon and sets an error message that will be displayed in a popup when
3207     * the TextView has focus.  The icon and error message will be reset to
3208     * null when any key events cause changes to the TextView's text.  The
3209     * drawable must already have had {@link Drawable#setBounds} set on it.
3210     * If the <code>error</code> is <code>null</code>, the error message will
3211     * be cleared (and you should provide a <code>null</code> icon as well).
3212     */
3213    public void setError(CharSequence error, Drawable icon) {
3214        error = TextUtils.stringOrSpannedString(error);
3215
3216        mError = error;
3217        mErrorWasChanged = true;
3218        final Drawables dr = mDrawables;
3219        if (dr != null) {
3220            setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop,
3221                                 icon, dr.mDrawableBottom);
3222        } else {
3223            setCompoundDrawables(null, null, icon, null);
3224        }
3225
3226        if (error == null) {
3227            if (mPopup != null) {
3228                if (mPopup.isShowing()) {
3229                    mPopup.dismiss();
3230                }
3231
3232                mPopup = null;
3233            }
3234        } else {
3235            if (isFocused()) {
3236                showError();
3237            }
3238        }
3239    }
3240
3241    private void showError() {
3242        if (getWindowToken() == null) {
3243            mShowErrorAfterAttach = true;
3244            return;
3245        }
3246
3247        if (mPopup == null) {
3248            LayoutInflater inflater = LayoutInflater.from(getContext());
3249            final TextView err = (TextView) inflater.inflate(com.android.internal.R.layout.textview_hint,
3250                    null);
3251
3252            mPopup = new ErrorPopup(err, 200, 50);
3253            mPopup.setFocusable(false);
3254            // The user is entering text, so the input method is needed.  We
3255            // don't want the popup to be displayed on top of it.
3256            mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED);
3257        }
3258
3259        TextView tv = (TextView) mPopup.getContentView();
3260        chooseSize(mPopup, mError, tv);
3261        tv.setText(mError);
3262
3263        mPopup.showAsDropDown(this, getErrorX(), getErrorY());
3264        mPopup.fixDirection(mPopup.isAboveAnchor());
3265    }
3266
3267    private static class ErrorPopup extends PopupWindow {
3268        private boolean mAbove = false;
3269        private TextView mView;
3270
3271        ErrorPopup(TextView v, int width, int height) {
3272            super(v, width, height);
3273            mView = v;
3274        }
3275
3276        void fixDirection(boolean above) {
3277            mAbove = above;
3278
3279            if (above) {
3280                mView.setBackgroundResource(com.android.internal.R.drawable.popup_inline_error_above);
3281            } else {
3282                mView.setBackgroundResource(com.android.internal.R.drawable.popup_inline_error);
3283            }
3284        }
3285
3286        @Override
3287        public void update(int x, int y, int w, int h, boolean force) {
3288            super.update(x, y, w, h, force);
3289
3290            boolean above = isAboveAnchor();
3291            if (above != mAbove) {
3292                fixDirection(above);
3293            }
3294        }
3295    }
3296
3297    /**
3298     * Returns the Y offset to make the pointy top of the error point
3299     * at the middle of the error icon.
3300     */
3301    private int getErrorX() {
3302        /*
3303         * The "25" is the distance between the point and the right edge
3304         * of the background
3305         */
3306
3307        final Drawables dr = mDrawables;
3308        return getWidth() - mPopup.getWidth()
3309                - getPaddingRight()
3310                - (dr != null ? dr.mDrawableSizeRight : 0) / 2 + 25;
3311    }
3312
3313    /**
3314     * Returns the Y offset to make the pointy top of the error point
3315     * at the bottom of the error icon.
3316     */
3317    private int getErrorY() {
3318        /*
3319         * Compound, not extended, because the icon is not clipped
3320         * if the text height is smaller.
3321         */
3322        int vspace = mBottom - mTop -
3323                     getCompoundPaddingBottom() - getCompoundPaddingTop();
3324
3325        final Drawables dr = mDrawables;
3326        int icontop = getCompoundPaddingTop()
3327                + (vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2;
3328
3329        /*
3330         * The "2" is the distance between the point and the top edge
3331         * of the background.
3332         */
3333
3334        return icontop + (dr != null ? dr.mDrawableHeightRight : 0)
3335                - getHeight() - 2;
3336    }
3337
3338    private void hideError() {
3339        if (mPopup != null) {
3340            if (mPopup.isShowing()) {
3341                mPopup.dismiss();
3342            }
3343        }
3344
3345        mShowErrorAfterAttach = false;
3346    }
3347
3348    private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) {
3349        int wid = tv.getPaddingLeft() + tv.getPaddingRight();
3350        int ht = tv.getPaddingTop() + tv.getPaddingBottom();
3351
3352        /*
3353         * Figure out how big the text would be if we laid it out to the
3354         * full width of this view minus the border.
3355         */
3356        int cap = getWidth() - wid;
3357        if (cap < 0) {
3358            cap = 200; // We must not be measured yet -- setFrame() will fix it.
3359        }
3360
3361        Layout l = new StaticLayout(text, tv.getPaint(), cap,
3362                                    Layout.Alignment.ALIGN_NORMAL, 1, 0, true);
3363        float max = 0;
3364        for (int i = 0; i < l.getLineCount(); i++) {
3365            max = Math.max(max, l.getLineWidth(i));
3366        }
3367
3368        /*
3369         * Now set the popup size to be big enough for the text plus the border.
3370         */
3371        pop.setWidth(wid + (int) Math.ceil(max));
3372        pop.setHeight(ht + l.getHeight());
3373    }
3374
3375
3376    @Override
3377    protected boolean setFrame(int l, int t, int r, int b) {
3378        boolean result = super.setFrame(l, t, r, b);
3379
3380        if (mPopup != null) {
3381            TextView tv = (TextView) mPopup.getContentView();
3382            chooseSize(mPopup, mError, tv);
3383            mPopup.update(this, getErrorX(), getErrorY(), -1, -1);
3384        }
3385
3386        restartMarqueeIfNeeded();
3387
3388        return result;
3389    }
3390
3391    private void restartMarqueeIfNeeded() {
3392        if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) {
3393            mRestartMarquee = false;
3394            startMarquee();
3395        }
3396    }
3397
3398    /**
3399     * Sets the list of input filters that will be used if the buffer is
3400     * Editable.  Has no effect otherwise.
3401     *
3402     * @attr ref android.R.styleable#TextView_maxLength
3403     */
3404    public void setFilters(InputFilter[] filters) {
3405        if (filters == null) {
3406            throw new IllegalArgumentException();
3407        }
3408
3409        mFilters = filters;
3410
3411        if (mText instanceof Editable) {
3412            setFilters((Editable) mText, filters);
3413        }
3414    }
3415
3416    /**
3417     * Sets the list of input filters on the specified Editable,
3418     * and includes mInput in the list if it is an InputFilter.
3419     */
3420    private void setFilters(Editable e, InputFilter[] filters) {
3421        if (mInput instanceof InputFilter) {
3422            InputFilter[] nf = new InputFilter[filters.length + 1];
3423
3424            System.arraycopy(filters, 0, nf, 0, filters.length);
3425            nf[filters.length] = (InputFilter) mInput;
3426
3427            e.setFilters(nf);
3428        } else {
3429            e.setFilters(filters);
3430        }
3431    }
3432
3433    /**
3434     * Returns the current list of input filters.
3435     */
3436    public InputFilter[] getFilters() {
3437        return mFilters;
3438    }
3439
3440    /////////////////////////////////////////////////////////////////////////
3441
3442    private int getVerticalOffset(boolean forceNormal) {
3443        int voffset = 0;
3444        final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
3445
3446        Layout l = mLayout;
3447        if (!forceNormal && mText.length() == 0 && mHintLayout != null) {
3448            l = mHintLayout;
3449        }
3450
3451        if (gravity != Gravity.TOP) {
3452            int boxht;
3453
3454            if (l == mHintLayout) {
3455                boxht = getMeasuredHeight() - getCompoundPaddingTop() -
3456                        getCompoundPaddingBottom();
3457            } else {
3458                boxht = getMeasuredHeight() - getExtendedPaddingTop() -
3459                        getExtendedPaddingBottom();
3460            }
3461            int textht = l.getHeight();
3462
3463            if (textht < boxht) {
3464                if (gravity == Gravity.BOTTOM)
3465                    voffset = boxht - textht;
3466                else // (gravity == Gravity.CENTER_VERTICAL)
3467                    voffset = (boxht - textht) >> 1;
3468            }
3469        }
3470        return voffset;
3471    }
3472
3473    private int getBottomVerticalOffset(boolean forceNormal) {
3474        int voffset = 0;
3475        final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
3476
3477        Layout l = mLayout;
3478        if (!forceNormal && mText.length() == 0 && mHintLayout != null) {
3479            l = mHintLayout;
3480        }
3481
3482        if (gravity != Gravity.BOTTOM) {
3483            int boxht;
3484
3485            if (l == mHintLayout) {
3486                boxht = getMeasuredHeight() - getCompoundPaddingTop() -
3487                        getCompoundPaddingBottom();
3488            } else {
3489                boxht = getMeasuredHeight() - getExtendedPaddingTop() -
3490                        getExtendedPaddingBottom();
3491            }
3492            int textht = l.getHeight();
3493
3494            if (textht < boxht) {
3495                if (gravity == Gravity.TOP)
3496                    voffset = boxht - textht;
3497                else // (gravity == Gravity.CENTER_VERTICAL)
3498                    voffset = (boxht - textht) >> 1;
3499            }
3500        }
3501        return voffset;
3502    }
3503
3504    private void invalidateCursorPath() {
3505        if (mHighlightPathBogus) {
3506            invalidateCursor();
3507        } else {
3508            synchronized (sTempRect) {
3509                /*
3510                 * The reason for this concern about the thickness of the
3511                 * cursor and doing the floor/ceil on the coordinates is that
3512                 * some EditTexts (notably textfields in the Browser) have
3513                 * anti-aliased text where not all the characters are
3514                 * necessarily at integer-multiple locations.  This should
3515                 * make sure the entire cursor gets invalidated instead of
3516                 * sometimes missing half a pixel.
3517                 */
3518
3519                float thick = FloatMath.ceil(mTextPaint.getStrokeWidth());
3520                if (thick < 1.0f) {
3521                    thick = 1.0f;
3522                }
3523
3524                thick /= 2;
3525
3526                mHighlightPath.computeBounds(sTempRect, false);
3527
3528                int left = getCompoundPaddingLeft();
3529                int top = getExtendedPaddingTop() + getVerticalOffset(true);
3530
3531                invalidate((int) FloatMath.floor(left + sTempRect.left - thick),
3532                           (int) FloatMath.floor(top + sTempRect.top - thick),
3533                           (int) FloatMath.ceil(left + sTempRect.right + thick),
3534                           (int) FloatMath.ceil(top + sTempRect.bottom + thick));
3535            }
3536        }
3537    }
3538
3539    private void invalidateCursor() {
3540        int where = Selection.getSelectionEnd(mText);
3541
3542        invalidateCursor(where, where, where);
3543    }
3544
3545    private void invalidateCursor(int a, int b, int c) {
3546        if (mLayout == null) {
3547            invalidate();
3548        } else {
3549            if (a >= 0 || b >= 0 || c >= 0) {
3550                int first = Math.min(Math.min(a, b), c);
3551                int last = Math.max(Math.max(a, b), c);
3552
3553                int line = mLayout.getLineForOffset(first);
3554                int top = mLayout.getLineTop(line);
3555
3556                // This is ridiculous, but the descent from the line above
3557                // can hang down into the line we really want to redraw,
3558                // so we have to invalidate part of the line above to make
3559                // sure everything that needs to be redrawn really is.
3560                // (But not the whole line above, because that would cause
3561                // the same problem with the descenders on the line above it!)
3562                if (line > 0) {
3563                    top -= mLayout.getLineDescent(line - 1);
3564                }
3565
3566                int line2;
3567
3568                if (first == last)
3569                    line2 = line;
3570                else
3571                    line2 = mLayout.getLineForOffset(last);
3572
3573                int bottom = mLayout.getLineTop(line2 + 1);
3574                int voffset = getVerticalOffset(true);
3575
3576                int left = getCompoundPaddingLeft() + mScrollX;
3577                invalidate(left, top + voffset + getExtendedPaddingTop(),
3578                           left + getWidth() - getCompoundPaddingLeft() -
3579                           getCompoundPaddingRight(),
3580                           bottom + voffset + getExtendedPaddingTop());
3581            }
3582        }
3583    }
3584
3585    private void registerForPreDraw() {
3586        final ViewTreeObserver observer = getViewTreeObserver();
3587        if (observer == null) {
3588            return;
3589        }
3590
3591        if (mPreDrawState == PREDRAW_NOT_REGISTERED) {
3592            observer.addOnPreDrawListener(this);
3593            mPreDrawState = PREDRAW_PENDING;
3594        } else if (mPreDrawState == PREDRAW_DONE) {
3595            mPreDrawState = PREDRAW_PENDING;
3596        }
3597
3598        // else state is PREDRAW_PENDING, so keep waiting.
3599    }
3600
3601    /**
3602     * {@inheritDoc}
3603     */
3604    public boolean onPreDraw() {
3605        if (mPreDrawState != PREDRAW_PENDING) {
3606            return true;
3607        }
3608
3609        if (mLayout == null) {
3610            assumeLayout();
3611        }
3612
3613        boolean changed = false;
3614
3615        if (mMovement != null) {
3616            int curs = Selection.getSelectionEnd(mText);
3617
3618            /*
3619             * TODO: This should really only keep the end in view if
3620             * it already was before the text changed.  I'm not sure
3621             * of a good way to tell from here if it was.
3622             */
3623            if (curs < 0 &&
3624                  (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
3625                curs = mText.length();
3626            }
3627
3628            if (curs >= 0) {
3629                changed = bringPointIntoView(curs);
3630            }
3631        } else {
3632            changed = bringTextIntoView();
3633        }
3634
3635        mPreDrawState = PREDRAW_DONE;
3636        return !changed;
3637    }
3638
3639    @Override
3640    protected void onAttachedToWindow() {
3641        super.onAttachedToWindow();
3642
3643        mTemporaryDetach = false;
3644
3645        if (mShowErrorAfterAttach) {
3646            showError();
3647            mShowErrorAfterAttach = false;
3648        }
3649    }
3650
3651    @Override
3652    protected void onDetachedFromWindow() {
3653        super.onDetachedFromWindow();
3654
3655        if (mPreDrawState != PREDRAW_NOT_REGISTERED) {
3656            final ViewTreeObserver observer = getViewTreeObserver();
3657            if (observer != null) {
3658                observer.removeOnPreDrawListener(this);
3659                mPreDrawState = PREDRAW_NOT_REGISTERED;
3660            }
3661        }
3662
3663        if (mError != null) {
3664            hideError();
3665        }
3666    }
3667
3668    @Override
3669    protected boolean isPaddingOffsetRequired() {
3670        return mShadowRadius != 0;
3671    }
3672
3673    @Override
3674    protected int getLeftPaddingOffset() {
3675        return (int) Math.min(0, mShadowDx - mShadowRadius);
3676    }
3677
3678    @Override
3679    protected int getTopPaddingOffset() {
3680        return (int) Math.min(0, mShadowDy - mShadowRadius);
3681    }
3682
3683    @Override
3684    protected int getBottomPaddingOffset() {
3685        return (int) Math.max(0, mShadowDy + mShadowRadius);
3686    }
3687
3688    @Override
3689    protected int getRightPaddingOffset() {
3690        return (int) Math.max(0, mShadowDx + mShadowRadius);
3691    }
3692
3693    @Override
3694    protected boolean verifyDrawable(Drawable who) {
3695        final boolean verified = super.verifyDrawable(who);
3696        if (!verified && mDrawables != null) {
3697            return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop ||
3698                    who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom;
3699        }
3700        return verified;
3701    }
3702
3703    @Override
3704    protected void onDraw(Canvas canvas) {
3705        restartMarqueeIfNeeded();
3706
3707        // Draw the background for this view
3708        super.onDraw(canvas);
3709
3710        final int compoundPaddingLeft = getCompoundPaddingLeft();
3711        final int compoundPaddingTop = getCompoundPaddingTop();
3712        final int compoundPaddingRight = getCompoundPaddingRight();
3713        final int compoundPaddingBottom = getCompoundPaddingBottom();
3714        final int scrollX = mScrollX;
3715        final int scrollY = mScrollY;
3716        final int right = mRight;
3717        final int left = mLeft;
3718        final int bottom = mBottom;
3719        final int top = mTop;
3720
3721        final Drawables dr = mDrawables;
3722        if (dr != null) {
3723            /*
3724             * Compound, not extended, because the icon is not clipped
3725             * if the text height is smaller.
3726             */
3727
3728            int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop;
3729            int hspace = right - left - compoundPaddingRight - compoundPaddingLeft;
3730
3731            if (dr.mDrawableLeft != null) {
3732                canvas.save();
3733                canvas.translate(scrollX + mPaddingLeft,
3734                                 scrollY + compoundPaddingTop +
3735                                 (vspace - dr.mDrawableHeightLeft) / 2);
3736                dr.mDrawableLeft.draw(canvas);
3737                canvas.restore();
3738            }
3739
3740            if (dr.mDrawableRight != null) {
3741                canvas.save();
3742                canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight,
3743                         scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2);
3744                dr.mDrawableRight.draw(canvas);
3745                canvas.restore();
3746            }
3747
3748            if (dr.mDrawableTop != null) {
3749                canvas.save();
3750                canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2,
3751                        scrollY + mPaddingTop);
3752                dr.mDrawableTop.draw(canvas);
3753                canvas.restore();
3754            }
3755
3756            if (dr.mDrawableBottom != null) {
3757                canvas.save();
3758                canvas.translate(scrollX + compoundPaddingLeft +
3759                        (hspace - dr.mDrawableWidthBottom) / 2,
3760                         scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom);
3761                dr.mDrawableBottom.draw(canvas);
3762                canvas.restore();
3763            }
3764        }
3765
3766        if (mPreDrawState == PREDRAW_DONE) {
3767            final ViewTreeObserver observer = getViewTreeObserver();
3768            if (observer != null) {
3769                observer.removeOnPreDrawListener(this);
3770                mPreDrawState = PREDRAW_NOT_REGISTERED;
3771            }
3772        }
3773
3774        int color = mCurTextColor;
3775
3776        if (mLayout == null) {
3777            assumeLayout();
3778        }
3779
3780        Layout layout = mLayout;
3781        int cursorcolor = color;
3782
3783        if (mHint != null && mText.length() == 0) {
3784            if (mHintTextColor != null) {
3785                color = mCurHintTextColor;
3786            }
3787
3788            layout = mHintLayout;
3789        }
3790
3791        mTextPaint.setColor(color);
3792        mTextPaint.drawableState = getDrawableState();
3793
3794        canvas.save();
3795        /*  Would be faster if we didn't have to do this. Can we chop the
3796            (displayable) text so that we don't need to do this ever?
3797        */
3798
3799        int extendedPaddingTop = getExtendedPaddingTop();
3800        int extendedPaddingBottom = getExtendedPaddingBottom();
3801
3802        float clipLeft = compoundPaddingLeft + scrollX;
3803        float clipTop = extendedPaddingTop + scrollY;
3804        float clipRight = right - left - compoundPaddingRight + scrollX;
3805        float clipBottom = bottom - top - extendedPaddingBottom + scrollY;
3806
3807        if (mShadowRadius != 0) {
3808            clipLeft += Math.min(0, mShadowDx - mShadowRadius);
3809            clipRight += Math.max(0, mShadowDx + mShadowRadius);
3810
3811            clipTop += Math.min(0, mShadowDy - mShadowRadius);
3812            clipBottom += Math.max(0, mShadowDy + mShadowRadius);
3813        }
3814
3815        canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom);
3816
3817        int voffsetText = 0;
3818        int voffsetCursor = 0;
3819
3820        // translate in by our padding
3821        {
3822            /* shortcircuit calling getVerticaOffset() */
3823            if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
3824                voffsetText = getVerticalOffset(false);
3825                voffsetCursor = getVerticalOffset(true);
3826            }
3827            canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText);
3828        }
3829
3830        if (mEllipsize == TextUtils.TruncateAt.MARQUEE) {
3831            if (!mSingleLine && getLineCount() == 1 && canMarquee() &&
3832                    (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) {
3833                canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft -
3834                        getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f);
3835            }
3836
3837            if (mMarquee != null && mMarquee.isRunning()) {
3838                canvas.translate(-mMarquee.mScroll, 0.0f);
3839            }
3840        }
3841
3842        Path highlight = null;
3843        int selStart = -1, selEnd = -1;
3844
3845        //  If there is no movement method, then there can be no selection.
3846        //  Check that first and attempt to skip everything having to do with
3847        //  the cursor.
3848        //  XXX This is not strictly true -- a program could set the
3849        //  selection manually if it really wanted to.
3850        if (mMovement != null && (isFocused() || isPressed())) {
3851            selStart = Selection.getSelectionStart(mText);
3852            selEnd = Selection.getSelectionEnd(mText);
3853
3854            if (mCursorVisible && selStart >= 0 && isEnabled()) {
3855                if (mHighlightPath == null)
3856                    mHighlightPath = new Path();
3857
3858                if (selStart == selEnd) {
3859                    if ((SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK)
3860                        < BLINK) {
3861                        if (mHighlightPathBogus) {
3862                            mHighlightPath.reset();
3863                            mLayout.getCursorPath(selStart, mHighlightPath, mText);
3864                            mHighlightPathBogus = false;
3865                        }
3866
3867                        // XXX should pass to skin instead of drawing directly
3868                        mHighlightPaint.setColor(cursorcolor);
3869                        mHighlightPaint.setStyle(Paint.Style.STROKE);
3870
3871                        highlight = mHighlightPath;
3872                    }
3873                } else {
3874                    if (mHighlightPathBogus) {
3875                        mHighlightPath.reset();
3876                        mLayout.getSelectionPath(selStart, selEnd, mHighlightPath);
3877                        mHighlightPathBogus = false;
3878                    }
3879
3880                    // XXX should pass to skin instead of drawing directly
3881                    mHighlightPaint.setColor(mHighlightColor);
3882                    mHighlightPaint.setStyle(Paint.Style.FILL);
3883
3884                    highlight = mHighlightPath;
3885                }
3886            }
3887        }
3888
3889        /*  Comment out until we decide what to do about animations
3890        boolean isLinearTextOn = false;
3891        if (currentTransformation != null) {
3892            isLinearTextOn = mTextPaint.isLinearTextOn();
3893            Matrix m = currentTransformation.getMatrix();
3894            if (!m.isIdentity()) {
3895                // mTextPaint.setLinearTextOn(true);
3896            }
3897        }
3898        */
3899
3900        final InputMethodState ims = mInputMethodState;
3901        if (ims != null && ims.mBatchEditNesting == 0) {
3902            InputMethodManager imm = InputMethodManager.peekInstance();
3903            if (imm != null) {
3904                if (imm.isActive(this)) {
3905                    boolean reported = false;
3906                    if (ims.mContentChanged || ims.mSelectionModeChanged) {
3907                        // We are in extract mode and the content has changed
3908                        // in some way... just report complete new text to the
3909                        // input method.
3910                        reported = reportExtractedText();
3911                    }
3912                    if (!reported && highlight != null) {
3913                        int candStart = -1;
3914                        int candEnd = -1;
3915                        if (mText instanceof Spannable) {
3916                            Spannable sp = (Spannable)mText;
3917                            candStart = EditableInputConnection.getComposingSpanStart(sp);
3918                            candEnd = EditableInputConnection.getComposingSpanEnd(sp);
3919                        }
3920                        imm.updateSelection(this, selStart, selEnd, candStart, candEnd);
3921                    }
3922                }
3923
3924                if (imm.isWatchingCursor(this) && highlight != null) {
3925                    highlight.computeBounds(ims.mTmpRectF, true);
3926                    ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0;
3927
3928                    canvas.getMatrix().mapPoints(ims.mTmpOffset);
3929                    ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]);
3930
3931                    ims.mTmpRectF.offset(0, voffsetCursor - voffsetText);
3932
3933                    ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5),
3934                            (int)(ims.mTmpRectF.top + 0.5),
3935                            (int)(ims.mTmpRectF.right + 0.5),
3936                            (int)(ims.mTmpRectF.bottom + 0.5));
3937
3938                    imm.updateCursor(this,
3939                            ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top,
3940                            ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom);
3941                }
3942            }
3943        }
3944
3945        layout.draw(canvas, highlight, mHighlightPaint, voffsetCursor - voffsetText);
3946
3947        if (mMarquee != null && mMarquee.shouldDrawGhost()) {
3948            canvas.translate((int) mMarquee.getGhostOffset(), 0.0f);
3949            layout.draw(canvas, highlight, mHighlightPaint, voffsetCursor - voffsetText);
3950        }
3951
3952        /*  Comment out until we decide what to do about animations
3953        if (currentTransformation != null) {
3954            mTextPaint.setLinearTextOn(isLinearTextOn);
3955        }
3956        */
3957
3958        canvas.restore();
3959    }
3960
3961    @Override
3962    public void getFocusedRect(Rect r) {
3963        if (mLayout == null) {
3964            super.getFocusedRect(r);
3965            return;
3966        }
3967
3968        int sel = getSelectionEnd();
3969        if (sel < 0) {
3970            super.getFocusedRect(r);
3971            return;
3972        }
3973
3974        int line = mLayout.getLineForOffset(sel);
3975        r.top = mLayout.getLineTop(line);
3976        r.bottom = mLayout.getLineBottom(line);
3977
3978        r.left = (int) mLayout.getPrimaryHorizontal(sel);
3979        r.right = r.left + 1;
3980
3981        // Adjust for padding and gravity.
3982        int paddingLeft = getCompoundPaddingLeft();
3983        int paddingTop = getExtendedPaddingTop();
3984        if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
3985            paddingTop += getVerticalOffset(false);
3986        }
3987        r.offset(paddingLeft, paddingTop);
3988    }
3989
3990    /**
3991     * Return the number of lines of text, or 0 if the internal Layout has not
3992     * been built.
3993     */
3994    public int getLineCount() {
3995        return mLayout != null ? mLayout.getLineCount() : 0;
3996    }
3997
3998    /**
3999     * Return the baseline for the specified line (0...getLineCount() - 1)
4000     * If bounds is not null, return the top, left, right, bottom extents
4001     * of the specified line in it. If the internal Layout has not been built,
4002     * return 0 and set bounds to (0, 0, 0, 0)
4003     * @param line which line to examine (0..getLineCount() - 1)
4004     * @param bounds Optional. If not null, it returns the extent of the line
4005     * @return the Y-coordinate of the baseline
4006     */
4007    public int getLineBounds(int line, Rect bounds) {
4008        if (mLayout == null) {
4009            if (bounds != null) {
4010                bounds.set(0, 0, 0, 0);
4011            }
4012            return 0;
4013        }
4014        else {
4015            int baseline = mLayout.getLineBounds(line, bounds);
4016
4017            int voffset = getExtendedPaddingTop();
4018            if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
4019                voffset += getVerticalOffset(true);
4020            }
4021            if (bounds != null) {
4022                bounds.offset(getCompoundPaddingLeft(), voffset);
4023            }
4024            return baseline + voffset;
4025        }
4026    }
4027
4028    @Override
4029    public int getBaseline() {
4030        if (mLayout == null) {
4031            return super.getBaseline();
4032        }
4033
4034        int voffset = 0;
4035        if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
4036            voffset = getVerticalOffset(true);
4037        }
4038
4039        return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0);
4040    }
4041
4042    @Override
4043    public boolean onKeyDown(int keyCode, KeyEvent event) {
4044        int which = doKeyDown(keyCode, event, null);
4045        if (which == 0) {
4046            // Go through default dispatching.
4047            return super.onKeyDown(keyCode, event);
4048        }
4049
4050        return true;
4051    }
4052
4053    @Override
4054    public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) {
4055        KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN);
4056
4057        int which = doKeyDown(keyCode, down, event);
4058        if (which == 0) {
4059            // Go through default dispatching.
4060            return super.onKeyMultiple(keyCode, repeatCount, event);
4061        }
4062        if (which == -1) {
4063            // Consumed the whole thing.
4064            return true;
4065        }
4066
4067        repeatCount--;
4068
4069        // We are going to dispatch the remaining events to either the input
4070        // or movement method.  To do this, we will just send a repeated stream
4071        // of down and up events until we have done the complete repeatCount.
4072        // It would be nice if those interfaces had an onKeyMultiple() method,
4073        // but adding that is a more complicated change.
4074        KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP);
4075        if (which == 1) {
4076            mInput.onKeyUp(this, (Editable)mText, keyCode, up);
4077            while (--repeatCount > 0) {
4078                mInput.onKeyDown(this, (Editable)mText, keyCode, down);
4079                mInput.onKeyUp(this, (Editable)mText, keyCode, up);
4080            }
4081            if (mError != null && !mErrorWasChanged) {
4082                setError(null, null);
4083            }
4084
4085        } else if (which == 2) {
4086            mMovement.onKeyUp(this, (Spannable)mText, keyCode, up);
4087            while (--repeatCount > 0) {
4088                mMovement.onKeyDown(this, (Spannable)mText, keyCode, down);
4089                mMovement.onKeyUp(this, (Spannable)mText, keyCode, up);
4090            }
4091        }
4092
4093        return true;
4094    }
4095
4096    /**
4097     * Returns true if pressing ENTER in this field advances focus instead
4098     * of inserting the character.  This is true mostly in single-line fields,
4099     * but also in mail addresses and subjects which will display on multiple
4100     * lines but where it doesn't make sense to insert newlines.
4101     */
4102    private boolean shouldAdvanceFocusOnEnter() {
4103        if (mInput == null) {
4104            return false;
4105        }
4106
4107        if (mSingleLine) {
4108            return true;
4109        }
4110
4111        if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) {
4112            int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION;
4113
4114            if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS ||
4115                variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) {
4116                return true;
4117            }
4118        }
4119
4120        return false;
4121    }
4122
4123    private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) {
4124        if (!isEnabled()) {
4125            return 0;
4126        }
4127
4128        switch (keyCode) {
4129            case KeyEvent.KEYCODE_ENTER:
4130                // If ALT modifier is held, then we always insert a
4131                // newline character.
4132                if ((event.getMetaState()&KeyEvent.META_ALT_ON) == 0) {
4133
4134                    // When mInputContentType is set, we know that we are
4135                    // running in a "modern" cupcake environment, so don't need
4136                    // to worry about the application trying to capture
4137                    // enter key events.
4138                    if (mInputContentType != null) {
4139
4140                        // If there is an action listener, given them a
4141                        // chance to consume the event.
4142                        if (mInputContentType.onEditorActionListener != null &&
4143                                mInputContentType.onEditorActionListener.onEditorAction(
4144                                this, EditorInfo.IME_NULL, event)) {
4145                            mInputContentType.enterDown = true;
4146                            // We are consuming the enter key for them.
4147                            return -1;
4148                        }
4149                    }
4150
4151                    // If our editor should move focus when enter is pressed, or
4152                    // this is a generated event from an IME action button, then
4153                    // don't let it be inserted into the text.
4154                    if ((event.getFlags()&KeyEvent.FLAG_EDITOR_ACTION) != 0
4155                            || shouldAdvanceFocusOnEnter()) {
4156                        return -1;
4157                    }
4158                }
4159                break;
4160
4161            case KeyEvent.KEYCODE_DPAD_CENTER:
4162                if (shouldAdvanceFocusOnEnter()) {
4163                    return 0;
4164                }
4165        }
4166
4167        if (mInput != null) {
4168            /*
4169             * Keep track of what the error was before doing the input
4170             * so that if an input filter changed the error, we leave
4171             * that error showing.  Otherwise, we take down whatever
4172             * error was showing when the user types something.
4173             */
4174            mErrorWasChanged = false;
4175
4176            boolean doDown = true;
4177            if (otherEvent != null) {
4178                try {
4179                    beginBatchEdit();
4180                    boolean handled = mInput.onKeyOther(this, (Editable) mText,
4181                            otherEvent);
4182                    if (mError != null && !mErrorWasChanged) {
4183                        setError(null, null);
4184                    }
4185                    doDown = false;
4186                    if (handled) {
4187                        return -1;
4188                    }
4189                } catch (AbstractMethodError e) {
4190                    // onKeyOther was added after 1.0, so if it isn't
4191                    // implemented we need to try to dispatch as a regular down.
4192                } finally {
4193                    endBatchEdit();
4194                }
4195            }
4196
4197            if (doDown) {
4198                beginBatchEdit();
4199                if (mInput.onKeyDown(this, (Editable) mText, keyCode, event)) {
4200                    endBatchEdit();
4201                    if (mError != null && !mErrorWasChanged) {
4202                        setError(null, null);
4203                    }
4204                    return 1;
4205                }
4206                endBatchEdit();
4207            }
4208        }
4209
4210        // bug 650865: sometimes we get a key event before a layout.
4211        // don't try to move around if we don't know the layout.
4212
4213        if (mMovement != null && mLayout != null) {
4214            boolean doDown = true;
4215            if (otherEvent != null) {
4216                try {
4217                    boolean handled = mMovement.onKeyOther(this, (Spannable) mText,
4218                            otherEvent);
4219                    doDown = false;
4220                    if (handled) {
4221                        return -1;
4222                    }
4223                } catch (AbstractMethodError e) {
4224                    // onKeyOther was added after 1.0, so if it isn't
4225                    // implemented we need to try to dispatch as a regular down.
4226                }
4227            }
4228            if (doDown) {
4229                if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event))
4230                    return 2;
4231            }
4232        }
4233
4234        return 0;
4235    }
4236
4237    @Override
4238    public boolean onKeyUp(int keyCode, KeyEvent event) {
4239        if (!isEnabled()) {
4240            return super.onKeyUp(keyCode, event);
4241        }
4242
4243        switch (keyCode) {
4244            case KeyEvent.KEYCODE_DPAD_CENTER:
4245                /*
4246                 * If there is a click listener, just call through to
4247                 * super, which will invoke it.
4248                 *
4249                 * If there isn't a click listener, try to show the soft
4250                 * input method.  (It will also
4251                 * call performClick(), but that won't do anything in
4252                 * this case.)
4253                 */
4254                if (mOnClickListener == null) {
4255                    if (mMovement != null && mText instanceof Editable
4256                            && mLayout != null && onCheckIsTextEditor()) {
4257                        InputMethodManager imm = (InputMethodManager)
4258                                getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
4259                        imm.showSoftInput(this, 0);
4260                    }
4261                }
4262                return super.onKeyUp(keyCode, event);
4263
4264            case KeyEvent.KEYCODE_ENTER:
4265                if (mInputContentType != null
4266                        && mInputContentType.onEditorActionListener != null
4267                        && mInputContentType.enterDown) {
4268                    mInputContentType.enterDown = false;
4269                    if (mInputContentType.onEditorActionListener.onEditorAction(
4270                            this, EditorInfo.IME_NULL, event)) {
4271                        return true;
4272                    }
4273                }
4274
4275                if ((event.getFlags()&KeyEvent.FLAG_EDITOR_ACTION) != 0
4276                        || shouldAdvanceFocusOnEnter()) {
4277                    /*
4278                     * If there is a click listener, just call through to
4279                     * super, which will invoke it.
4280                     *
4281                     * If there isn't a click listener, try to advance focus,
4282                     * but still call through to super, which will reset the
4283                     * pressed state and longpress state.  (It will also
4284                     * call performClick(), but that won't do anything in
4285                     * this case.)
4286                     */
4287                    if (mOnClickListener == null) {
4288                        View v = focusSearch(FOCUS_DOWN);
4289
4290                        if (v != null) {
4291                            if (!v.requestFocus(FOCUS_DOWN)) {
4292                                throw new IllegalStateException("focus search returned a view " +
4293                                        "that wasn't able to take focus!");
4294                            }
4295
4296                            /*
4297                             * Return true because we handled the key; super
4298                             * will return false because there was no click
4299                             * listener.
4300                             */
4301                            super.onKeyUp(keyCode, event);
4302                            return true;
4303                        } else if ((event.getFlags()
4304                                & KeyEvent.FLAG_EDITOR_ACTION) != 0) {
4305                            // No target for next focus, but make sure the IME
4306                            // if this came from it.
4307                            InputMethodManager imm = InputMethodManager.peekInstance();
4308                            if (imm != null) {
4309                                imm.hideSoftInputFromWindow(getWindowToken(), 0);
4310                            }
4311                        }
4312                    }
4313
4314                    return super.onKeyUp(keyCode, event);
4315                }
4316        }
4317
4318        if (mInput != null)
4319            if (mInput.onKeyUp(this, (Editable) mText, keyCode, event))
4320                return true;
4321
4322        if (mMovement != null && mLayout != null)
4323            if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event))
4324                return true;
4325
4326        return super.onKeyUp(keyCode, event);
4327    }
4328
4329    @Override public boolean onCheckIsTextEditor() {
4330        return mInputType != EditorInfo.TYPE_NULL;
4331    }
4332
4333    @Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
4334        if (onCheckIsTextEditor()) {
4335            if (mInputMethodState == null) {
4336                mInputMethodState = new InputMethodState();
4337            }
4338            outAttrs.inputType = mInputType;
4339            if (mInputContentType != null) {
4340                outAttrs.imeOptions = mInputContentType.imeOptions;
4341                outAttrs.privateImeOptions = mInputContentType.privateImeOptions;
4342                outAttrs.actionLabel = mInputContentType.imeActionLabel;
4343                outAttrs.actionId = mInputContentType.imeActionId;
4344                outAttrs.extras = mInputContentType.extras;
4345            } else {
4346                outAttrs.imeOptions = EditorInfo.IME_NULL;
4347            }
4348            if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION)
4349                    == EditorInfo.IME_ACTION_UNSPECIFIED) {
4350                if (focusSearch(FOCUS_DOWN) != null) {
4351                    // An action has not been set, but the enter key will move to
4352                    // the next focus, so set the action to that.
4353                    outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT;
4354                } else {
4355                    // An action has not been set, and there is no focus to move
4356                    // to, so let's just supply a "done" action.
4357                    outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE;
4358                }
4359                if (!shouldAdvanceFocusOnEnter()) {
4360                    outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION;
4361                }
4362            }
4363            if ((outAttrs.inputType & (InputType.TYPE_MASK_CLASS
4364                    | InputType.TYPE_TEXT_FLAG_MULTI_LINE))
4365                    == (InputType.TYPE_CLASS_TEXT
4366                            | InputType.TYPE_TEXT_FLAG_MULTI_LINE)) {
4367                // Multi-line text editors should always show an enter key.
4368                outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION;
4369            }
4370            outAttrs.hintText = mHint;
4371            if (mText instanceof Editable) {
4372                InputConnection ic = new EditableInputConnection(this);
4373                outAttrs.initialSelStart = Selection.getSelectionStart(mText);
4374                outAttrs.initialSelEnd = Selection.getSelectionEnd(mText);
4375                outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType);
4376                return ic;
4377            }
4378        }
4379        return null;
4380    }
4381
4382    /**
4383     * If this TextView contains editable content, extract a portion of it
4384     * based on the information in <var>request</var> in to <var>outText</var>.
4385     * @return Returns true if the text was successfully extracted, else false.
4386     */
4387    public boolean extractText(ExtractedTextRequest request,
4388            ExtractedText outText) {
4389        return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN,
4390                EXTRACT_UNKNOWN, outText);
4391    }
4392
4393    static final int EXTRACT_NOTHING = -2;
4394    static final int EXTRACT_UNKNOWN = -1;
4395
4396    boolean extractTextInternal(ExtractedTextRequest request,
4397            int partialStartOffset, int partialEndOffset, int delta,
4398            ExtractedText outText) {
4399        final CharSequence content = mText;
4400        if (content != null) {
4401            if (partialStartOffset != EXTRACT_NOTHING) {
4402                final int N = content.length();
4403                if (partialStartOffset < 0) {
4404                    outText.partialStartOffset = outText.partialEndOffset = -1;
4405                    partialStartOffset = 0;
4406                    partialEndOffset = N;
4407                } else {
4408                    // Adjust offsets to ensure we contain full spans.
4409                    if (content instanceof Spanned) {
4410                        Spanned spanned = (Spanned)content;
4411                        Object[] spans = spanned.getSpans(partialStartOffset,
4412                                partialEndOffset, ParcelableSpan.class);
4413                        int i = spans.length;
4414                        while (i > 0) {
4415                            i--;
4416                            int j = spanned.getSpanStart(spans[i]);
4417                            if (j < partialStartOffset) partialStartOffset = j;
4418                            j = spanned.getSpanEnd(spans[i]);
4419                            if (j > partialEndOffset) partialEndOffset = j;
4420                        }
4421                    }
4422                    outText.partialStartOffset = partialStartOffset;
4423                    outText.partialEndOffset = partialEndOffset;
4424                    // Now use the delta to determine the actual amount of text
4425                    // we need.
4426                    partialEndOffset += delta;
4427                    if (partialEndOffset > N) {
4428                        partialEndOffset = N;
4429                    } else if (partialEndOffset < 0) {
4430                        partialEndOffset = 0;
4431                    }
4432                }
4433                if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) {
4434                    outText.text = content.subSequence(partialStartOffset,
4435                            partialEndOffset);
4436                } else {
4437                    outText.text = TextUtils.substring(content, partialStartOffset,
4438                            partialEndOffset);
4439                }
4440            }
4441            outText.flags = 0;
4442            if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) {
4443                outText.flags |= ExtractedText.FLAG_SELECTING;
4444            }
4445            if (mSingleLine) {
4446                outText.flags |= ExtractedText.FLAG_SINGLE_LINE;
4447            }
4448            outText.startOffset = 0;
4449            outText.selectionStart = Selection.getSelectionStart(content);
4450            outText.selectionEnd = Selection.getSelectionEnd(content);
4451            return true;
4452        }
4453        return false;
4454    }
4455
4456    boolean reportExtractedText() {
4457        final InputMethodState ims = mInputMethodState;
4458        if (ims != null) {
4459            final boolean contentChanged = ims.mContentChanged;
4460            if (contentChanged || ims.mSelectionModeChanged) {
4461                ims.mContentChanged = false;
4462                ims.mSelectionModeChanged = false;
4463                final ExtractedTextRequest req = mInputMethodState.mExtracting;
4464                if (req != null) {
4465                    InputMethodManager imm = InputMethodManager.peekInstance();
4466                    if (imm != null) {
4467                        if (DEBUG_EXTRACT) Log.v(TAG, "Retrieving extracted start="
4468                                + ims.mChangedStart + " end=" + ims.mChangedEnd
4469                                + " delta=" + ims.mChangedDelta);
4470                        if (ims.mChangedStart < 0 && !contentChanged) {
4471                            ims.mChangedStart = EXTRACT_NOTHING;
4472                        }
4473                        if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd,
4474                                ims.mChangedDelta, ims.mTmpExtracted)) {
4475                            if (DEBUG_EXTRACT) Log.v(TAG, "Reporting extracted start="
4476                                    + ims.mTmpExtracted.partialStartOffset
4477                                    + " end=" + ims.mTmpExtracted.partialEndOffset
4478                                    + ": " + ims.mTmpExtracted.text);
4479                            imm.updateExtractedText(this, req.token,
4480                                    mInputMethodState.mTmpExtracted);
4481                            return true;
4482                        }
4483                    }
4484                }
4485            }
4486        }
4487        return false;
4488    }
4489
4490    /**
4491     * This is used to remove all style-impacting spans from text before new
4492     * extracted text is being replaced into it, so that we don't have any
4493     * lingering spans applied during the replace.
4494     */
4495    static void removeParcelableSpans(Spannable spannable, int start, int end) {
4496        Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class);
4497        int i = spans.length;
4498        while (i > 0) {
4499            i--;
4500            spannable.removeSpan(spans[i]);
4501        }
4502    }
4503
4504    /**
4505     * Apply to this text view the given extracted text, as previously
4506     * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}.
4507     */
4508    public void setExtractedText(ExtractedText text) {
4509        Editable content = getEditableText();
4510        if (text.text != null) {
4511            if (content == null) {
4512                setText(text.text, TextView.BufferType.EDITABLE);
4513            } else if (text.partialStartOffset < 0) {
4514                removeParcelableSpans(content, 0, content.length());
4515                content.replace(0, content.length(), text.text);
4516            } else {
4517                final int N = content.length();
4518                int start = text.partialStartOffset;
4519                if (start > N) start = N;
4520                int end = text.partialEndOffset;
4521                if (end > N) end = N;
4522                removeParcelableSpans(content, start, end);
4523                content.replace(start, end, text.text);
4524            }
4525        }
4526
4527        // Now set the selection position...  make sure it is in range, to
4528        // avoid crashes.  If this is a partial update, it is possible that
4529        // the underlying text may have changed, causing us problems here.
4530        // Also we just don't want to trust clients to do the right thing.
4531        Spannable sp = (Spannable)getText();
4532        final int N = sp.length();
4533        int start = text.selectionStart;
4534        if (start < 0) start = 0;
4535        else if (start > N) start = N;
4536        int end = text.selectionEnd;
4537        if (end < 0) end = 0;
4538        else if (end > N) end = N;
4539        Selection.setSelection(sp, start, end);
4540
4541        // Finally, update the selection mode.
4542        if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) {
4543            MetaKeyKeyListener.startSelecting(this, sp);
4544        } else {
4545            MetaKeyKeyListener.stopSelecting(this, sp);
4546        }
4547    }
4548
4549    /**
4550     * @hide
4551     */
4552    public void setExtracting(ExtractedTextRequest req) {
4553        if (mInputMethodState != null) {
4554            mInputMethodState.mExtracting = req;
4555        }
4556    }
4557
4558    /**
4559     * Called by the framework in response to a text completion from
4560     * the current input method, provided by it calling
4561     * {@link InputConnection#commitCompletion
4562     * InputConnection.commitCompletion()}.  The default implementation does
4563     * nothing; text views that are supporting auto-completion should override
4564     * this to do their desired behavior.
4565     *
4566     * @param text The auto complete text the user has selected.
4567     */
4568    public void onCommitCompletion(CompletionInfo text) {
4569    }
4570
4571    public void beginBatchEdit() {
4572        final InputMethodState ims = mInputMethodState;
4573        if (ims != null) {
4574            int nesting = ++ims.mBatchEditNesting;
4575            if (nesting == 1) {
4576                ims.mCursorChanged = false;
4577                ims.mChangedDelta = 0;
4578                if (ims.mContentChanged) {
4579                    // We already have a pending change from somewhere else,
4580                    // so turn this into a full update.
4581                    ims.mChangedStart = 0;
4582                    ims.mChangedEnd = mText.length();
4583                } else {
4584                    ims.mChangedStart = EXTRACT_UNKNOWN;
4585                    ims.mChangedEnd = EXTRACT_UNKNOWN;
4586                    ims.mContentChanged = false;
4587                }
4588                onBeginBatchEdit();
4589            }
4590        }
4591    }
4592
4593    public void endBatchEdit() {
4594        final InputMethodState ims = mInputMethodState;
4595        if (ims != null) {
4596            int nesting = --ims.mBatchEditNesting;
4597            if (nesting == 0) {
4598                finishBatchEdit(ims);
4599            }
4600        }
4601    }
4602
4603    void ensureEndedBatchEdit() {
4604        final InputMethodState ims = mInputMethodState;
4605        if (ims != null && ims.mBatchEditNesting != 0) {
4606            ims.mBatchEditNesting = 0;
4607            finishBatchEdit(ims);
4608        }
4609    }
4610
4611    void finishBatchEdit(final InputMethodState ims) {
4612        onEndBatchEdit();
4613
4614        if (ims.mContentChanged || ims.mSelectionModeChanged) {
4615            updateAfterEdit();
4616            reportExtractedText();
4617        } else if (ims.mCursorChanged) {
4618            // Cheezy way to get us to report the current cursor location.
4619            invalidateCursor();
4620        }
4621    }
4622
4623    void updateAfterEdit() {
4624        invalidate();
4625        int curs = Selection.getSelectionStart(mText);
4626
4627        if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) ==
4628                             Gravity.BOTTOM) {
4629            registerForPreDraw();
4630        }
4631
4632        if (curs >= 0) {
4633            mHighlightPathBogus = true;
4634
4635            if (isFocused()) {
4636                mShowCursor = SystemClock.uptimeMillis();
4637                makeBlink();
4638            }
4639        }
4640
4641        checkForResize();
4642    }
4643
4644    /**
4645     * Called by the framework in response to a request to begin a batch
4646     * of edit operations through a call to link {@link #beginBatchEdit()}.
4647     */
4648    public void onBeginBatchEdit() {
4649    }
4650
4651    /**
4652     * Called by the framework in response to a request to end a batch
4653     * of edit operations through a call to link {@link #endBatchEdit}.
4654     */
4655    public void onEndBatchEdit() {
4656    }
4657
4658    /**
4659     * Called by the framework in response to a private command from the
4660     * current method, provided by it calling
4661     * {@link InputConnection#performPrivateCommand
4662     * InputConnection.performPrivateCommand()}.
4663     *
4664     * @param action The action name of the command.
4665     * @param data Any additional data for the command.  This may be null.
4666     * @return Return true if you handled the command, else false.
4667     */
4668    public boolean onPrivateIMECommand(String action, Bundle data) {
4669        return false;
4670    }
4671
4672    private void nullLayouts() {
4673        if (mLayout instanceof BoringLayout && mSavedLayout == null) {
4674            mSavedLayout = (BoringLayout) mLayout;
4675        }
4676        if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) {
4677            mSavedHintLayout = (BoringLayout) mHintLayout;
4678        }
4679
4680        mLayout = mHintLayout = null;
4681    }
4682
4683    /**
4684     * Make a new Layout based on the already-measured size of the view,
4685     * on the assumption that it was measured correctly at some point.
4686     */
4687    private void assumeLayout() {
4688        int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight();
4689
4690        if (width < 1) {
4691            width = 0;
4692        }
4693
4694        int physicalWidth = width;
4695
4696        if (mHorizontallyScrolling) {
4697            width = VERY_WIDE;
4698        }
4699
4700        makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING,
4701                      physicalWidth, false);
4702    }
4703
4704    /**
4705     * The width passed in is now the desired layout width,
4706     * not the full view width with padding.
4707     * {@hide}
4708     */
4709    protected void makeNewLayout(int w, int hintWidth,
4710                                 BoringLayout.Metrics boring,
4711                                 BoringLayout.Metrics hintBoring,
4712                                 int ellipsisWidth, boolean bringIntoView) {
4713        stopMarquee();
4714
4715        mHighlightPathBogus = true;
4716
4717        if (w < 0) {
4718            w = 0;
4719        }
4720        if (hintWidth < 0) {
4721            hintWidth = 0;
4722        }
4723
4724        Layout.Alignment alignment;
4725        switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
4726            case Gravity.CENTER_HORIZONTAL:
4727                alignment = Layout.Alignment.ALIGN_CENTER;
4728                break;
4729
4730            case Gravity.RIGHT:
4731                alignment = Layout.Alignment.ALIGN_OPPOSITE;
4732                break;
4733
4734            default:
4735                alignment = Layout.Alignment.ALIGN_NORMAL;
4736        }
4737
4738        if (mText instanceof Spannable) {
4739            mLayout = new DynamicLayout(mText, mTransformed, mTextPaint, w,
4740                    alignment, mSpacingMult,
4741                    mSpacingAdd, mIncludePad, mEllipsize,
4742                    ellipsisWidth);
4743        } else {
4744            if (boring == UNKNOWN_BORING) {
4745                boring = BoringLayout.isBoring(mTransformed, mTextPaint,
4746                                               mBoring);
4747                if (boring != null) {
4748                    mBoring = boring;
4749                }
4750            }
4751
4752            if (boring != null) {
4753                if (boring.width <= w &&
4754                    (mEllipsize == null || boring.width <= ellipsisWidth)) {
4755                    if (mSavedLayout != null) {
4756                        mLayout = mSavedLayout.
4757                                replaceOrMake(mTransformed, mTextPaint,
4758                                w, alignment, mSpacingMult, mSpacingAdd,
4759                                boring, mIncludePad);
4760                    } else {
4761                        mLayout = BoringLayout.make(mTransformed, mTextPaint,
4762                                w, alignment, mSpacingMult, mSpacingAdd,
4763                                boring, mIncludePad);
4764                    }
4765                    // Log.e("aaa", "Boring: " + mTransformed);
4766
4767                    mSavedLayout = (BoringLayout) mLayout;
4768                } else if (mEllipsize != null && boring.width <= w) {
4769                    if (mSavedLayout != null) {
4770                        mLayout = mSavedLayout.
4771                                replaceOrMake(mTransformed, mTextPaint,
4772                                w, alignment, mSpacingMult, mSpacingAdd,
4773                                boring, mIncludePad, mEllipsize,
4774                                ellipsisWidth);
4775                    } else {
4776                        mLayout = BoringLayout.make(mTransformed, mTextPaint,
4777                                w, alignment, mSpacingMult, mSpacingAdd,
4778                                boring, mIncludePad, mEllipsize,
4779                                ellipsisWidth);
4780                    }
4781                } else if (mEllipsize != null) {
4782                    mLayout = new StaticLayout(mTransformed,
4783                                0, mTransformed.length(),
4784                                mTextPaint, w, alignment, mSpacingMult,
4785                                mSpacingAdd, mIncludePad, mEllipsize,
4786                                ellipsisWidth);
4787                } else {
4788                    mLayout = new StaticLayout(mTransformed, mTextPaint,
4789                            w, alignment, mSpacingMult, mSpacingAdd,
4790                            mIncludePad);
4791                    // Log.e("aaa", "Boring but wide: " + mTransformed);
4792                }
4793            } else if (mEllipsize != null) {
4794                mLayout = new StaticLayout(mTransformed,
4795                            0, mTransformed.length(),
4796                            mTextPaint, w, alignment, mSpacingMult,
4797                            mSpacingAdd, mIncludePad, mEllipsize,
4798                            ellipsisWidth);
4799            } else {
4800                mLayout = new StaticLayout(mTransformed, mTextPaint,
4801                        w, alignment, mSpacingMult, mSpacingAdd,
4802                        mIncludePad);
4803            }
4804        }
4805
4806        mHintLayout = null;
4807
4808        if (mHint != null) {
4809            if (hintBoring == UNKNOWN_BORING) {
4810                hintBoring = BoringLayout.isBoring(mHint, mTextPaint,
4811                                                   mHintBoring);
4812                if (hintBoring != null) {
4813                    mHintBoring = hintBoring;
4814                }
4815            }
4816
4817            if (hintBoring != null) {
4818                if (hintBoring.width <= hintWidth) {
4819                    if (mSavedHintLayout != null) {
4820                        mHintLayout = mSavedHintLayout.
4821                                replaceOrMake(mHint, mTextPaint,
4822                                hintWidth, alignment, mSpacingMult,
4823                                mSpacingAdd, hintBoring, mIncludePad);
4824                    } else {
4825                        mHintLayout = BoringLayout.make(mHint, mTextPaint,
4826                                hintWidth, alignment, mSpacingMult,
4827                                mSpacingAdd, hintBoring, mIncludePad);
4828                    }
4829
4830                    mSavedHintLayout = (BoringLayout) mHintLayout;
4831                } else {
4832                    mHintLayout = new StaticLayout(mHint, mTextPaint,
4833                            hintWidth, alignment, mSpacingMult, mSpacingAdd,
4834                            mIncludePad);
4835                }
4836            } else {
4837                mHintLayout = new StaticLayout(mHint, mTextPaint,
4838                        hintWidth, alignment, mSpacingMult, mSpacingAdd,
4839                        mIncludePad);
4840            }
4841        }
4842
4843        if (bringIntoView) {
4844            registerForPreDraw();
4845        }
4846
4847        if (mEllipsize == TextUtils.TruncateAt.MARQUEE) {
4848            if (!compressText(ellipsisWidth)) {
4849                final int height = mLayoutParams.height;
4850                // If the size of the view does not depend on the size of the text, try to
4851                // start the marquee immediately
4852                if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.FILL_PARENT) {
4853                    startMarquee();
4854                } else {
4855                    // Defer the start of the marquee until we know our width (see setFrame())
4856                    mRestartMarquee = true;
4857                }
4858            }
4859        }
4860    }
4861
4862    private boolean compressText(float width) {
4863        // Only compress the text if it hasn't been compressed by the previous pass
4864        if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX &&
4865                mTextPaint.getTextScaleX() == 1.0f) {
4866            final float textWidth = mLayout.getLineWidth(0);
4867            final float overflow = (textWidth + 1.0f - width) / width;
4868            if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) {
4869                mTextPaint.setTextScaleX(1.0f - overflow - 0.005f);
4870                post(new Runnable() {
4871                    public void run() {
4872                        requestLayout();
4873                    }
4874                });
4875                return true;
4876            }
4877        }
4878
4879        return false;
4880    }
4881
4882    private static int desired(Layout layout) {
4883        int n = layout.getLineCount();
4884        CharSequence text = layout.getText();
4885        float max = 0;
4886
4887        // if any line was wrapped, we can't use it.
4888        // but it's ok for the last line not to have a newline
4889
4890        for (int i = 0; i < n - 1; i++) {
4891            if (text.charAt(layout.getLineEnd(i) - 1) != '\n')
4892                return -1;
4893        }
4894
4895        for (int i = 0; i < n; i++) {
4896            max = Math.max(max, layout.getLineWidth(i));
4897        }
4898
4899        return (int) FloatMath.ceil(max);
4900    }
4901
4902    /**
4903     * Set whether the TextView includes extra top and bottom padding to make
4904     * room for accents that go above the normal ascent and descent.
4905     * The default is true.
4906     *
4907     * @attr ref android.R.styleable#TextView_includeFontPadding
4908     */
4909    public void setIncludeFontPadding(boolean includepad) {
4910        mIncludePad = includepad;
4911
4912        if (mLayout != null) {
4913            nullLayouts();
4914            requestLayout();
4915            invalidate();
4916        }
4917    }
4918
4919    private static final BoringLayout.Metrics UNKNOWN_BORING =
4920                                                new BoringLayout.Metrics();
4921
4922    @Override
4923    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
4924        int widthMode = MeasureSpec.getMode(widthMeasureSpec);
4925        int heightMode = MeasureSpec.getMode(heightMeasureSpec);
4926        int widthSize = MeasureSpec.getSize(widthMeasureSpec);
4927        int heightSize = MeasureSpec.getSize(heightMeasureSpec);
4928
4929        int width;
4930        int height;
4931
4932        BoringLayout.Metrics boring = UNKNOWN_BORING;
4933        BoringLayout.Metrics hintBoring = UNKNOWN_BORING;
4934
4935        int des = -1;
4936        boolean fromexisting = false;
4937
4938        if (widthMode == MeasureSpec.EXACTLY) {
4939            // Parent has told us how big to be. So be it.
4940            width = widthSize;
4941        } else {
4942            if (mLayout != null && mEllipsize == null) {
4943                des = desired(mLayout);
4944            }
4945
4946            if (des < 0) {
4947                boring = BoringLayout.isBoring(mTransformed, mTextPaint,
4948                                               mBoring);
4949                if (boring != null) {
4950                    mBoring = boring;
4951                }
4952            } else {
4953                fromexisting = true;
4954            }
4955
4956            if (boring == null || boring == UNKNOWN_BORING) {
4957                if (des < 0) {
4958                    des = (int) FloatMath.ceil(Layout.
4959                                    getDesiredWidth(mTransformed, mTextPaint));
4960                }
4961
4962                width = des;
4963            } else {
4964                width = boring.width;
4965            }
4966
4967            final Drawables dr = mDrawables;
4968            if (dr != null) {
4969                width = Math.max(width, dr.mDrawableWidthTop);
4970                width = Math.max(width, dr.mDrawableWidthBottom);
4971            }
4972
4973            if (mHint != null) {
4974                int hintDes = -1;
4975                int hintWidth;
4976
4977                if (mHintLayout != null) {
4978                    hintDes = desired(mHintLayout);
4979                }
4980
4981                if (hintDes < 0) {
4982                    hintBoring = BoringLayout.isBoring(mHint, mTextPaint,
4983                                                       mHintBoring);
4984                    if (hintBoring != null) {
4985                        mHintBoring = hintBoring;
4986                    }
4987                }
4988
4989                if (hintBoring == null || hintBoring == UNKNOWN_BORING) {
4990                    if (hintDes < 0) {
4991                        hintDes = (int) FloatMath.ceil(Layout.
4992                                        getDesiredWidth(mHint, mTextPaint));
4993                    }
4994
4995                    hintWidth = hintDes;
4996                } else {
4997                    hintWidth = hintBoring.width;
4998                }
4999
5000                if (hintWidth > width) {
5001                    width = hintWidth;
5002                }
5003            }
5004
5005            width += getCompoundPaddingLeft() + getCompoundPaddingRight();
5006
5007            if (mMaxWidthMode == EMS) {
5008                width = Math.min(width, mMaxWidth * getLineHeight());
5009            } else {
5010                width = Math.min(width, mMaxWidth);
5011            }
5012
5013            if (mMinWidthMode == EMS) {
5014                width = Math.max(width, mMinWidth * getLineHeight());
5015            } else {
5016                width = Math.max(width, mMinWidth);
5017            }
5018
5019            // Check against our minimum width
5020            width = Math.max(width, getSuggestedMinimumWidth());
5021
5022            if (widthMode == MeasureSpec.AT_MOST) {
5023                width = Math.min(widthSize, width);
5024            }
5025        }
5026
5027        int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight();
5028        int unpaddedWidth = want;
5029        int hintWant = want;
5030
5031        if (mHorizontallyScrolling)
5032            want = VERY_WIDE;
5033
5034        int hintWidth = mHintLayout == null ? hintWant : mHintLayout.getWidth();
5035
5036        if (mLayout == null) {
5037            makeNewLayout(want, hintWant, boring, hintBoring,
5038                          width - getCompoundPaddingLeft() - getCompoundPaddingRight(),
5039                          false);
5040        } else if ((mLayout.getWidth() != want) || (hintWidth != hintWant) ||
5041                   (mLayout.getEllipsizedWidth() !=
5042                        width - getCompoundPaddingLeft() - getCompoundPaddingRight())) {
5043            if (mHint == null && mEllipsize == null &&
5044                    want > mLayout.getWidth() &&
5045                    (mLayout instanceof BoringLayout ||
5046                        (fromexisting && des >= 0 && des <= want))) {
5047                mLayout.increaseWidthTo(want);
5048            } else {
5049                makeNewLayout(want, hintWant, boring, hintBoring,
5050                              width - getCompoundPaddingLeft() - getCompoundPaddingRight(),
5051                              false);
5052            }
5053        } else {
5054            // Width has not changed.
5055        }
5056
5057        if (heightMode == MeasureSpec.EXACTLY) {
5058            // Parent has told us how big to be. So be it.
5059            height = heightSize;
5060            mDesiredHeightAtMeasure = -1;
5061        } else {
5062            int desired = getDesiredHeight();
5063
5064            height = desired;
5065            mDesiredHeightAtMeasure = desired;
5066
5067            if (heightMode == MeasureSpec.AT_MOST) {
5068                height = Math.min(desired, height);
5069            }
5070        }
5071
5072        int unpaddedHeight = height - getCompoundPaddingTop() -
5073                                getCompoundPaddingBottom();
5074        if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) {
5075            unpaddedHeight = Math.min(unpaddedHeight,
5076                                      mLayout.getLineTop(mMaximum));
5077        }
5078
5079        /*
5080         * We didn't let makeNewLayout() register to bring the cursor into view,
5081         * so do it here if there is any possibility that it is needed.
5082         */
5083        if (mMovement != null ||
5084            mLayout.getWidth() > unpaddedWidth ||
5085            mLayout.getHeight() > unpaddedHeight) {
5086            registerForPreDraw();
5087        } else {
5088            scrollTo(0, 0);
5089        }
5090
5091        setMeasuredDimension(width, height);
5092    }
5093
5094    private int getDesiredHeight() {
5095        return Math.max(getDesiredHeight(mLayout, true),
5096                        getDesiredHeight(mHintLayout, false));
5097    }
5098
5099    private int getDesiredHeight(Layout layout, boolean cap) {
5100        if (layout == null) {
5101            return 0;
5102        }
5103
5104        int linecount = layout.getLineCount();
5105        int pad = getCompoundPaddingTop() + getCompoundPaddingBottom();
5106        int desired = layout.getLineTop(linecount);
5107
5108        final Drawables dr = mDrawables;
5109        if (dr != null) {
5110            desired = Math.max(desired, dr.mDrawableHeightLeft);
5111            desired = Math.max(desired, dr.mDrawableHeightRight);
5112        }
5113
5114        desired += pad;
5115
5116        if (mMaxMode == LINES) {
5117            /*
5118             * Don't cap the hint to a certain number of lines.
5119             * (Do cap it, though, if we have a maximum pixel height.)
5120             */
5121            if (cap) {
5122                if (linecount > mMaximum) {
5123                    desired = layout.getLineTop(mMaximum) +
5124                              layout.getBottomPadding();
5125
5126                    if (dr != null) {
5127                        desired = Math.max(desired, dr.mDrawableHeightLeft);
5128                        desired = Math.max(desired, dr.mDrawableHeightRight);
5129                    }
5130
5131                    desired += pad;
5132                    linecount = mMaximum;
5133                }
5134            }
5135        } else {
5136            desired = Math.min(desired, mMaximum);
5137        }
5138
5139        if (mMinMode == LINES) {
5140            if (linecount < mMinimum) {
5141                desired += getLineHeight() * (mMinimum - linecount);
5142            }
5143        } else {
5144            desired = Math.max(desired, mMinimum);
5145        }
5146
5147        // Check against our minimum height
5148        desired = Math.max(desired, getSuggestedMinimumHeight());
5149
5150        return desired;
5151    }
5152
5153    /**
5154     * Check whether a change to the existing text layout requires a
5155     * new view layout.
5156     */
5157    private void checkForResize() {
5158        boolean sizeChanged = false;
5159
5160        if (mLayout != null) {
5161            // Check if our width changed
5162            if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) {
5163                sizeChanged = true;
5164                invalidate();
5165            }
5166
5167            // Check if our height changed
5168            if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) {
5169                int desiredHeight = getDesiredHeight();
5170
5171                if (desiredHeight != this.getHeight()) {
5172                    sizeChanged = true;
5173                }
5174            } else if (mLayoutParams.height == LayoutParams.FILL_PARENT) {
5175                if (mDesiredHeightAtMeasure >= 0) {
5176                    int desiredHeight = getDesiredHeight();
5177
5178                    if (desiredHeight != mDesiredHeightAtMeasure) {
5179                        sizeChanged = true;
5180                    }
5181                }
5182            }
5183        }
5184
5185        if (sizeChanged) {
5186            requestLayout();
5187            // caller will have already invalidated
5188        }
5189    }
5190
5191    /**
5192     * Check whether entirely new text requires a new view layout
5193     * or merely a new text layout.
5194     */
5195    private void checkForRelayout() {
5196        // If we have a fixed width, we can just swap in a new text layout
5197        // if the text height stays the same or if the view height is fixed.
5198
5199        if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT ||
5200                (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) &&
5201                (mHint == null || mHintLayout != null) &&
5202                (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) {
5203            // Static width, so try making a new text layout.
5204
5205            int oldht = mLayout.getHeight();
5206            int want = mLayout.getWidth();
5207            int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth();
5208
5209            /*
5210             * No need to bring the text into view, since the size is not
5211             * changing (unless we do the requestLayout(), in which case it
5212             * will happen at measure).
5213             */
5214            makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING,
5215                          mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), false);
5216
5217            // In a fixed-height view, so use our new text layout.
5218            if (mLayoutParams.height != LayoutParams.WRAP_CONTENT &&
5219                mLayoutParams.height != LayoutParams.FILL_PARENT) {
5220                invalidate();
5221                return;
5222            }
5223
5224            // Dynamic height, but height has stayed the same,
5225            // so use our new text layout.
5226            if (mLayout.getHeight() == oldht &&
5227                (mHintLayout == null || mHintLayout.getHeight() == oldht)) {
5228                invalidate();
5229                return;
5230            }
5231
5232            // We lose: the height has changed and we have a dynamic height.
5233            // Request a new view layout using our new text layout.
5234            requestLayout();
5235            invalidate();
5236        } else {
5237            // Dynamic width, so we have no choice but to request a new
5238            // view layout with a new text layout.
5239
5240            nullLayouts();
5241            requestLayout();
5242            invalidate();
5243        }
5244    }
5245
5246    /**
5247     * Returns true if anything changed.
5248     */
5249    private boolean bringTextIntoView() {
5250        int line = 0;
5251        if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
5252            line = mLayout.getLineCount() - 1;
5253        }
5254
5255        Layout.Alignment a = mLayout.getParagraphAlignment(line);
5256        int dir = mLayout.getParagraphDirection(line);
5257        int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight();
5258        int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom();
5259        int ht = mLayout.getHeight();
5260
5261        int scrollx, scrolly;
5262
5263        if (a == Layout.Alignment.ALIGN_CENTER) {
5264            /*
5265             * Keep centered if possible, or, if it is too wide to fit,
5266             * keep leading edge in view.
5267             */
5268
5269            int left = (int) FloatMath.floor(mLayout.getLineLeft(line));
5270            int right = (int) FloatMath.ceil(mLayout.getLineRight(line));
5271
5272            if (right - left < hspace) {
5273                scrollx = (right + left) / 2 - hspace / 2;
5274            } else {
5275                if (dir < 0) {
5276                    scrollx = right - hspace;
5277                } else {
5278                    scrollx = left;
5279                }
5280            }
5281        } else if (a == Layout.Alignment.ALIGN_NORMAL) {
5282            /*
5283             * Keep leading edge in view.
5284             */
5285
5286            if (dir < 0) {
5287                int right = (int) FloatMath.ceil(mLayout.getLineRight(line));
5288                scrollx = right - hspace;
5289            } else {
5290                scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line));
5291            }
5292        } else /* a == Layout.Alignment.ALIGN_OPPOSITE */ {
5293            /*
5294             * Keep trailing edge in view.
5295             */
5296
5297            if (dir < 0) {
5298                scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line));
5299            } else {
5300                int right = (int) FloatMath.ceil(mLayout.getLineRight(line));
5301                scrollx = right - hspace;
5302            }
5303        }
5304
5305        if (ht < vspace) {
5306            scrolly = 0;
5307        } else {
5308            if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
5309                scrolly = ht - vspace;
5310            } else {
5311                scrolly = 0;
5312            }
5313        }
5314
5315        if (scrollx != mScrollX || scrolly != mScrollY) {
5316            scrollTo(scrollx, scrolly);
5317            return true;
5318        } else {
5319            return false;
5320        }
5321    }
5322
5323    /**
5324     * Move the point, specified by the offset, into the view if it is needed.
5325     * This has to be called after layout. Returns true if anything changed.
5326     */
5327    public boolean bringPointIntoView(int offset) {
5328        boolean changed = false;
5329
5330        int line = mLayout.getLineForOffset(offset);
5331
5332        // FIXME: Is it okay to truncate this, or should we round?
5333        final int x = (int)mLayout.getPrimaryHorizontal(offset);
5334        final int top = mLayout.getLineTop(line);
5335        final int bottom = mLayout.getLineTop(line+1);
5336
5337        int left = (int) FloatMath.floor(mLayout.getLineLeft(line));
5338        int right = (int) FloatMath.ceil(mLayout.getLineRight(line));
5339        int ht = mLayout.getHeight();
5340
5341        int grav;
5342
5343        switch (mLayout.getParagraphAlignment(line)) {
5344            case ALIGN_NORMAL:
5345                grav = 1;
5346                break;
5347
5348            case ALIGN_OPPOSITE:
5349                grav = -1;
5350                break;
5351
5352            default:
5353                grav = 0;
5354        }
5355
5356        grav *= mLayout.getParagraphDirection(line);
5357
5358        int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight();
5359        int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom();
5360
5361        int hslack = (bottom - top) / 2;
5362        int vslack = hslack;
5363
5364        if (vslack > vspace / 4)
5365            vslack = vspace / 4;
5366        if (hslack > hspace / 4)
5367            hslack = hspace / 4;
5368
5369        int hs = mScrollX;
5370        int vs = mScrollY;
5371
5372        if (top - vs < vslack)
5373            vs = top - vslack;
5374        if (bottom - vs > vspace - vslack)
5375            vs = bottom - (vspace - vslack);
5376        if (ht - vs < vspace)
5377            vs = ht - vspace;
5378        if (0 - vs > 0)
5379            vs = 0;
5380
5381        if (grav != 0) {
5382            if (x - hs < hslack) {
5383                hs = x - hslack;
5384            }
5385            if (x - hs > hspace - hslack) {
5386                hs = x - (hspace - hslack);
5387            }
5388        }
5389
5390        if (grav < 0) {
5391            if (left - hs > 0)
5392                hs = left;
5393            if (right - hs < hspace)
5394                hs = right - hspace;
5395        } else if (grav > 0) {
5396            if (right - hs < hspace)
5397                hs = right - hspace;
5398            if (left - hs > 0)
5399                hs = left;
5400        } else /* grav == 0 */ {
5401            if (right - left <= hspace) {
5402                /*
5403                 * If the entire text fits, center it exactly.
5404                 */
5405                hs = left - (hspace - (right - left)) / 2;
5406            } else if (x > right - hslack) {
5407                /*
5408                 * If we are near the right edge, keep the right edge
5409                 * at the edge of the view.
5410                 */
5411                hs = right - hspace;
5412            } else if (x < left + hslack) {
5413                /*
5414                 * If we are near the left edge, keep the left edge
5415                 * at the edge of the view.
5416                 */
5417                hs = left;
5418            } else if (left > hs) {
5419                /*
5420                 * Is there whitespace visible at the left?  Fix it if so.
5421                 */
5422                hs = left;
5423            } else if (right < hs + hspace) {
5424                /*
5425                 * Is there whitespace visible at the right?  Fix it if so.
5426                 */
5427                hs = right - hspace;
5428            } else {
5429                /*
5430                 * Otherwise, float as needed.
5431                 */
5432                if (x - hs < hslack) {
5433                    hs = x - hslack;
5434                }
5435                if (x - hs > hspace - hslack) {
5436                    hs = x - (hspace - hslack);
5437                }
5438            }
5439        }
5440
5441        if (hs != mScrollX || vs != mScrollY) {
5442            if (mScroller == null) {
5443                scrollTo(hs, vs);
5444            } else {
5445                long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll;
5446                int dx = hs - mScrollX;
5447                int dy = vs - mScrollY;
5448
5449                if (duration > ANIMATED_SCROLL_GAP) {
5450                    mScroller.startScroll(mScrollX, mScrollY, dx, dy);
5451                    invalidate();
5452                } else {
5453                    if (!mScroller.isFinished()) {
5454                        mScroller.abortAnimation();
5455                    }
5456
5457                    scrollBy(dx, dy);
5458                }
5459
5460                mLastScroll = AnimationUtils.currentAnimationTimeMillis();
5461            }
5462
5463            changed = true;
5464        }
5465
5466        if (isFocused()) {
5467            // This offsets because getInterestingRect() is in terms of
5468            // viewport coordinates, but requestRectangleOnScreen()
5469            // is in terms of content coordinates.
5470
5471            Rect r = new Rect();
5472            getInterestingRect(r, x, top, bottom, line);
5473            r.offset(mScrollX, mScrollY);
5474
5475            if (requestRectangleOnScreen(r)) {
5476                changed = true;
5477            }
5478        }
5479
5480        return changed;
5481    }
5482
5483    /**
5484     * Move the cursor, if needed, so that it is at an offset that is visible
5485     * to the user.  This will not move the cursor if it represents more than
5486     * one character (a selection range).  This will only work if the
5487     * TextView contains spannable text; otherwise it will do nothing.
5488     */
5489    public boolean moveCursorToVisibleOffset() {
5490        if (!(mText instanceof Spannable)) {
5491            return false;
5492        }
5493        int start = Selection.getSelectionStart(mText);
5494        int end = Selection.getSelectionEnd(mText);
5495        if (start != end) {
5496            return false;
5497        }
5498
5499        // First: make sure the line is visible on screen:
5500
5501        int line = mLayout.getLineForOffset(start);
5502
5503        final int top = mLayout.getLineTop(line);
5504        final int bottom = mLayout.getLineTop(line+1);
5505        final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom();
5506        int vslack = (bottom - top) / 2;
5507        if (vslack > vspace / 4)
5508            vslack = vspace / 4;
5509        final int vs = mScrollY;
5510
5511        if (top < (vs+vslack)) {
5512            line = mLayout.getLineForVertical(vs+vslack+(bottom-top));
5513        } else if (bottom > (vspace+vs-vslack)) {
5514            line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top));
5515        }
5516
5517        // Next: make sure the character is visible on screen:
5518
5519        final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight();
5520        final int hs = mScrollX;
5521        final int leftChar = mLayout.getOffsetForHorizontal(line, hs);
5522        final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs);
5523
5524        int newStart = start;
5525        if (newStart < leftChar) {
5526            newStart = leftChar;
5527        } else if (newStart > rightChar) {
5528            newStart = rightChar;
5529        }
5530
5531        if (newStart != start) {
5532            Selection.setSelection((Spannable)mText, newStart);
5533            return true;
5534        }
5535
5536        return false;
5537    }
5538
5539    @Override
5540    public void computeScroll() {
5541        if (mScroller != null) {
5542            if (mScroller.computeScrollOffset()) {
5543                mScrollX = mScroller.getCurrX();
5544                mScrollY = mScroller.getCurrY();
5545                postInvalidate();  // So we draw again
5546            }
5547        }
5548    }
5549
5550    private void getInterestingRect(Rect r, int h, int top, int bottom,
5551                                    int line) {
5552        int paddingTop = getExtendedPaddingTop();
5553        if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
5554            paddingTop += getVerticalOffset(false);
5555        }
5556        top += paddingTop;
5557        bottom += paddingTop;
5558        h += getCompoundPaddingLeft();
5559
5560        if (line == 0)
5561            top -= getExtendedPaddingTop();
5562        if (line == mLayout.getLineCount() - 1)
5563            bottom += getExtendedPaddingBottom();
5564
5565        r.set(h, top, h+1, bottom);
5566        r.offset(-mScrollX, -mScrollY);
5567    }
5568
5569    @Override
5570    public void debug(int depth) {
5571        super.debug(depth);
5572
5573        String output = debugIndent(depth);
5574        output += "frame={" + mLeft + ", " + mTop + ", " + mRight
5575                + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY
5576                + "} ";
5577
5578        if (mText != null) {
5579
5580            output += "mText=\"" + mText + "\" ";
5581            if (mLayout != null) {
5582                output += "mLayout width=" + mLayout.getWidth()
5583                        + " height=" + mLayout.getHeight();
5584            }
5585        } else {
5586            output += "mText=NULL";
5587        }
5588        Log.d(VIEW_LOG_TAG, output);
5589    }
5590
5591    /**
5592     * Convenience for {@link Selection#getSelectionStart}.
5593     */
5594    public int getSelectionStart() {
5595        return Selection.getSelectionStart(getText());
5596    }
5597
5598    /**
5599     * Convenience for {@link Selection#getSelectionEnd}.
5600     */
5601    public int getSelectionEnd() {
5602        return Selection.getSelectionEnd(getText());
5603    }
5604
5605    /**
5606     * Return true iff there is a selection inside this text view.
5607     */
5608    public boolean hasSelection() {
5609        return getSelectionStart() != getSelectionEnd();
5610    }
5611
5612    /**
5613     * Sets the properties of this field (lines, horizontally scrolling,
5614     * transformation method) to be for a single-line input.
5615     *
5616     * @attr ref android.R.styleable#TextView_singleLine
5617     */
5618    public void setSingleLine() {
5619        setSingleLine(true);
5620    }
5621
5622    /**
5623     * If true, sets the properties of this field (lines, horizontally
5624     * scrolling, transformation method) to be for a single-line input;
5625     * if false, restores these to the default conditions.
5626     * Note that calling this with false restores default conditions,
5627     * not necessarily those that were in effect prior to calling
5628     * it with true.
5629     *
5630     * @attr ref android.R.styleable#TextView_singleLine
5631     */
5632    @android.view.RemotableViewMethod
5633    public void setSingleLine(boolean singleLine) {
5634        if ((mInputType&EditorInfo.TYPE_MASK_CLASS)
5635                == EditorInfo.TYPE_CLASS_TEXT) {
5636            if (singleLine) {
5637                mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE;
5638            } else {
5639                mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE;
5640            }
5641        }
5642        applySingleLine(singleLine, true);
5643    }
5644
5645    private void applySingleLine(boolean singleLine, boolean applyTransformation) {
5646        mSingleLine = singleLine;
5647        if (singleLine) {
5648            setLines(1);
5649            setHorizontallyScrolling(true);
5650            if (applyTransformation) {
5651                setTransformationMethod(SingleLineTransformationMethod.
5652                                        getInstance());
5653            }
5654        } else {
5655            setMaxLines(Integer.MAX_VALUE);
5656            setHorizontallyScrolling(false);
5657            if (applyTransformation) {
5658                setTransformationMethod(null);
5659            }
5660        }
5661    }
5662
5663    /**
5664     * Causes words in the text that are longer than the view is wide
5665     * to be ellipsized instead of broken in the middle.  You may also
5666     * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling}
5667     * to constrain the text toa single line.  Use <code>null</code>
5668     * to turn off ellipsizing.
5669     *
5670     * @attr ref android.R.styleable#TextView_ellipsize
5671     */
5672    public void setEllipsize(TextUtils.TruncateAt where) {
5673        mEllipsize = where;
5674
5675        if (mLayout != null) {
5676            nullLayouts();
5677            requestLayout();
5678            invalidate();
5679        }
5680    }
5681
5682    /**
5683     * Sets how many times to repeat the marquee animation. Only applied if the
5684     * TextView has marquee enabled. Set to -1 to repeat indefinitely.
5685     *
5686     * @attr ref android.R.styleable#TextView_marqueeRepeatLimit
5687     */
5688    public void setMarqueeRepeatLimit(int marqueeLimit) {
5689        mMarqueeRepeatLimit = marqueeLimit;
5690    }
5691
5692    /**
5693     * Returns where, if anywhere, words that are longer than the view
5694     * is wide should be ellipsized.
5695     */
5696    @ViewDebug.ExportedProperty
5697    public TextUtils.TruncateAt getEllipsize() {
5698        return mEllipsize;
5699    }
5700
5701    /**
5702     * Set the TextView so that when it takes focus, all the text is
5703     * selected.
5704     *
5705     * @attr ref android.R.styleable#TextView_selectAllOnFocus
5706     */
5707    @android.view.RemotableViewMethod
5708    public void setSelectAllOnFocus(boolean selectAllOnFocus) {
5709        mSelectAllOnFocus = selectAllOnFocus;
5710
5711        if (selectAllOnFocus && !(mText instanceof Spannable)) {
5712            setText(mText, BufferType.SPANNABLE);
5713        }
5714    }
5715
5716    /**
5717     * Set whether the cursor is visible.  The default is true.
5718     *
5719     * @attr ref android.R.styleable#TextView_cursorVisible
5720     */
5721    @android.view.RemotableViewMethod
5722    public void setCursorVisible(boolean visible) {
5723        mCursorVisible = visible;
5724        invalidate();
5725
5726        if (visible) {
5727            makeBlink();
5728        } else if (mBlink != null) {
5729            mBlink.removeCallbacks(mBlink);
5730        }
5731    }
5732
5733    private boolean canMarquee() {
5734        int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight());
5735        return width > 0 && mLayout.getLineWidth(0) > width;
5736    }
5737
5738    private void startMarquee() {
5739        if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) {
5740            return;
5741        }
5742
5743        if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) &&
5744                getLineCount() == 1 && canMarquee()) {
5745
5746            if (mMarquee == null) mMarquee = new Marquee(this);
5747            mMarquee.start(mMarqueeRepeatLimit);
5748        }
5749    }
5750
5751    private void stopMarquee() {
5752        if (mMarquee != null && !mMarquee.isStopped()) {
5753            mMarquee.stop();
5754        }
5755    }
5756
5757    private void startStopMarquee(boolean start) {
5758        if (mEllipsize == TextUtils.TruncateAt.MARQUEE) {
5759            if (start) {
5760                startMarquee();
5761            } else {
5762                stopMarquee();
5763            }
5764        }
5765    }
5766
5767    private static final class Marquee extends Handler {
5768        // TODO: Add an option to configure this
5769        private static final float MARQUEE_DELTA_MAX = 0.07f;
5770        private static final int MARQUEE_DELAY = 1200;
5771        private static final int MARQUEE_RESTART_DELAY = 1200;
5772        private static final int MARQUEE_RESOLUTION = 1000 / 30;
5773        private static final int MARQUEE_PIXELS_PER_SECOND = 30;
5774
5775        private static final byte MARQUEE_STOPPED = 0x0;
5776        private static final byte MARQUEE_STARTING = 0x1;
5777        private static final byte MARQUEE_RUNNING = 0x2;
5778
5779        private static final int MESSAGE_START = 0x1;
5780        private static final int MESSAGE_TICK = 0x2;
5781        private static final int MESSAGE_RESTART = 0x3;
5782
5783        private final WeakReference<TextView> mView;
5784
5785        private byte mStatus = MARQUEE_STOPPED;
5786        private float mScrollUnit;
5787        private float mMaxScroll;
5788        float mMaxFadeScroll;
5789        private float mGhostStart;
5790        private float mGhostOffset;
5791        private float mFadeStop;
5792        private int mRepeatLimit;
5793
5794        float mScroll;
5795
5796        Marquee(TextView v) {
5797            final float density = v.getContext().getResources().getDisplayMetrics().density;
5798            mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / (float) MARQUEE_RESOLUTION;
5799            mView = new WeakReference<TextView>(v);
5800        }
5801
5802        @Override
5803        public void handleMessage(Message msg) {
5804            switch (msg.what) {
5805                case MESSAGE_START:
5806                    mStatus = MARQUEE_RUNNING;
5807                    tick();
5808                    break;
5809                case MESSAGE_TICK:
5810                    tick();
5811                    break;
5812                case MESSAGE_RESTART:
5813                    if (mStatus == MARQUEE_RUNNING) {
5814                        if (mRepeatLimit >= 0) {
5815                            mRepeatLimit--;
5816                        }
5817                        start(mRepeatLimit);
5818                    }
5819                    break;
5820            }
5821        }
5822
5823        void tick() {
5824            if (mStatus != MARQUEE_RUNNING) {
5825                return;
5826            }
5827
5828            removeMessages(MESSAGE_TICK);
5829
5830            final TextView textView = mView.get();
5831            if (textView != null && (textView.isFocused() || textView.isSelected())) {
5832                mScroll += mScrollUnit;
5833                if (mScroll > mMaxScroll) {
5834                    mScroll = mMaxScroll;
5835                    sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY);
5836                } else {
5837                    sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION);
5838                }
5839                textView.invalidate();
5840            }
5841        }
5842
5843        void stop() {
5844            mStatus = MARQUEE_STOPPED;
5845            removeMessages(MESSAGE_START);
5846            removeMessages(MESSAGE_RESTART);
5847            removeMessages(MESSAGE_TICK);
5848            resetScroll();
5849        }
5850
5851        private void resetScroll() {
5852            mScroll = 0.0f;
5853            final TextView textView = mView.get();
5854            if (textView != null) textView.invalidate();
5855        }
5856
5857        void start(int repeatLimit) {
5858            if (repeatLimit == 0) {
5859                stop();
5860                return;
5861            }
5862            mRepeatLimit = repeatLimit;
5863            final TextView textView = mView.get();
5864            if (textView != null && textView.mLayout != null) {
5865                mStatus = MARQUEE_STARTING;
5866                mScroll = 0.0f;
5867                final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() -
5868                        textView.getCompoundPaddingRight();
5869                final float lineWidth = textView.mLayout.getLineWidth(0);
5870                final float gap = textWidth / 3.0f;
5871                mGhostStart = lineWidth - textWidth + gap;
5872                mMaxScroll = mGhostStart + textWidth;
5873                mGhostOffset = lineWidth + gap;
5874                mFadeStop = lineWidth + textWidth / 6.0f;
5875                mMaxFadeScroll = mGhostStart + lineWidth + lineWidth;
5876
5877                textView.invalidate();
5878                sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY);
5879            }
5880        }
5881
5882        float getGhostOffset() {
5883            return mGhostOffset;
5884        }
5885
5886        boolean shouldDrawLeftFade() {
5887            return mScroll <= mFadeStop;
5888        }
5889
5890        boolean shouldDrawGhost() {
5891            return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart;
5892        }
5893
5894        boolean isRunning() {
5895            return mStatus == MARQUEE_RUNNING;
5896        }
5897
5898        boolean isStopped() {
5899            return mStatus == MARQUEE_STOPPED;
5900        }
5901    }
5902
5903    /**
5904     * This method is called when the text is changed, in case any
5905     * subclasses would like to know.
5906     *
5907     * @param text The text the TextView is displaying.
5908     * @param start The offset of the start of the range of the text
5909     *              that was modified.
5910     * @param before The offset of the former end of the range of the
5911     *               text that was modified.  If text was simply inserted,
5912     *               this will be the same as <code>start</code>.
5913     *               If text was replaced with new text or deleted, the
5914     *               length of the old text was <code>before-start</code>.
5915     * @param after The offset of the end of the range of the text
5916     *              that was modified.  If text was simply deleted,
5917     *              this will be the same as <code>start</code>.
5918     *              If text was replaced with new text or inserted,
5919     *              the length of the new text is <code>after-start</code>.
5920     */
5921    protected void onTextChanged(CharSequence text,
5922                                 int start, int before, int after) {
5923    }
5924
5925    /**
5926     * This method is called when the selection has changed, in case any
5927     * subclasses would like to know.
5928     *
5929     * @param selStart The new selection start location.
5930     * @param selEnd The new selection end location.
5931     */
5932    protected void onSelectionChanged(int selStart, int selEnd) {
5933    }
5934
5935    /**
5936     * Adds a TextWatcher to the list of those whose methods are called
5937     * whenever this TextView's text changes.
5938     * <p>
5939     * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously
5940     * not called after {@link #setText} calls.  Now, doing {@link #setText}
5941     * if there are any text changed listeners forces the buffer type to
5942     * Editable if it would not otherwise be and does call this method.
5943     */
5944    public void addTextChangedListener(TextWatcher watcher) {
5945        if (mListeners == null) {
5946            mListeners = new ArrayList<TextWatcher>();
5947        }
5948
5949        mListeners.add(watcher);
5950    }
5951
5952    /**
5953     * Removes the specified TextWatcher from the list of those whose
5954     * methods are called
5955     * whenever this TextView's text changes.
5956     */
5957    public void removeTextChangedListener(TextWatcher watcher) {
5958        if (mListeners != null) {
5959            int i = mListeners.indexOf(watcher);
5960
5961            if (i >= 0) {
5962                mListeners.remove(i);
5963            }
5964        }
5965    }
5966
5967    private void sendBeforeTextChanged(CharSequence text, int start, int before,
5968                                   int after) {
5969        if (mListeners != null) {
5970            final ArrayList<TextWatcher> list = mListeners;
5971            final int count = list.size();
5972            for (int i = 0; i < count; i++) {
5973                list.get(i).beforeTextChanged(text, start, before, after);
5974            }
5975        }
5976    }
5977
5978    /**
5979     * Not private so it can be called from an inner class without going
5980     * through a thunk.
5981     */
5982    void sendOnTextChanged(CharSequence text, int start, int before,
5983                                   int after) {
5984        if (mListeners != null) {
5985            final ArrayList<TextWatcher> list = mListeners;
5986            final int count = list.size();
5987            for (int i = 0; i < count; i++) {
5988                list.get(i).onTextChanged(text, start, before, after);
5989            }
5990        }
5991    }
5992
5993    /**
5994     * Not private so it can be called from an inner class without going
5995     * through a thunk.
5996     */
5997    void sendAfterTextChanged(Editable text) {
5998        if (mListeners != null) {
5999            final ArrayList<TextWatcher> list = mListeners;
6000            final int count = list.size();
6001            for (int i = 0; i < count; i++) {
6002                list.get(i).afterTextChanged(text);
6003            }
6004        }
6005    }
6006
6007    /**
6008     * Not private so it can be called from an inner class without going
6009     * through a thunk.
6010     */
6011    void handleTextChanged(CharSequence buffer, int start,
6012            int before, int after) {
6013        final InputMethodState ims = mInputMethodState;
6014        if (ims == null || ims.mBatchEditNesting == 0) {
6015            updateAfterEdit();
6016        }
6017        if (ims != null) {
6018            ims.mContentChanged = true;
6019            if (ims.mChangedStart < 0) {
6020                ims.mChangedStart = start;
6021                ims.mChangedEnd = start+before;
6022            } else {
6023                if (ims.mChangedStart > start) ims.mChangedStart = start;
6024                if (ims.mChangedEnd < (start+before)) ims.mChangedEnd = start+before;
6025            }
6026            ims.mChangedDelta += after-before;
6027        }
6028
6029        sendOnTextChanged(buffer, start, before, after);
6030        onTextChanged(buffer, start, before, after);
6031    }
6032
6033    /**
6034     * Not private so it can be called from an inner class without going
6035     * through a thunk.
6036     */
6037    void spanChange(Spanned buf, Object what, int oldStart, int newStart,
6038            int oldEnd, int newEnd) {
6039        // XXX Make the start and end move together if this ends up
6040        // spending too much time invalidating.
6041
6042        boolean selChanged = false;
6043        int newSelStart=-1, newSelEnd=-1;
6044
6045        final InputMethodState ims = mInputMethodState;
6046
6047        if (what == Selection.SELECTION_END) {
6048            mHighlightPathBogus = true;
6049            selChanged = true;
6050            newSelEnd = newStart;
6051
6052            if (!isFocused()) {
6053                mSelectionMoved = true;
6054            }
6055
6056            if (oldStart >= 0 || newStart >= 0) {
6057                invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart);
6058                registerForPreDraw();
6059
6060                if (isFocused()) {
6061                    mShowCursor = SystemClock.uptimeMillis();
6062                    makeBlink();
6063                }
6064            }
6065        }
6066
6067        if (what == Selection.SELECTION_START) {
6068            mHighlightPathBogus = true;
6069            selChanged = true;
6070            newSelStart = newStart;
6071
6072            if (!isFocused()) {
6073                mSelectionMoved = true;
6074            }
6075
6076            if (oldStart >= 0 || newStart >= 0) {
6077                int end = Selection.getSelectionEnd(buf);
6078                invalidateCursor(end, oldStart, newStart);
6079            }
6080        }
6081
6082        if (selChanged) {
6083            if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) {
6084                if (newSelStart < 0) {
6085                    newSelStart = Selection.getSelectionStart(buf);
6086                }
6087                if (newSelEnd < 0) {
6088                    newSelEnd = Selection.getSelectionEnd(buf);
6089                }
6090                onSelectionChanged(newSelStart, newSelEnd);
6091            }
6092        }
6093
6094        if (what instanceof UpdateAppearance ||
6095            what instanceof ParagraphStyle) {
6096            if (ims == null || ims.mBatchEditNesting == 0) {
6097                invalidate();
6098                mHighlightPathBogus = true;
6099                checkForResize();
6100            } else {
6101                ims.mContentChanged = true;
6102            }
6103        }
6104
6105        if (MetaKeyKeyListener.isMetaTracker(buf, what)) {
6106            mHighlightPathBogus = true;
6107            if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) {
6108                ims.mSelectionModeChanged = true;
6109            }
6110
6111            if (Selection.getSelectionStart(buf) >= 0) {
6112                if (ims == null || ims.mBatchEditNesting == 0) {
6113                    invalidateCursor();
6114                } else {
6115                    ims.mCursorChanged = true;
6116                }
6117            }
6118        }
6119
6120        if (what instanceof ParcelableSpan) {
6121            // If this is a span that can be sent to a remote process,
6122            // the current extract editor would be interested in it.
6123            if (ims != null && ims.mExtracting != null) {
6124                if (ims.mBatchEditNesting != 0) {
6125                    if (oldStart >= 0) {
6126                        if (ims.mChangedStart > oldStart) {
6127                            ims.mChangedStart = oldStart;
6128                        }
6129                        if (ims.mChangedStart > oldEnd) {
6130                            ims.mChangedStart = oldEnd;
6131                        }
6132                    }
6133                    if (newStart >= 0) {
6134                        if (ims.mChangedStart > newStart) {
6135                            ims.mChangedStart = newStart;
6136                        }
6137                        if (ims.mChangedStart > newEnd) {
6138                            ims.mChangedStart = newEnd;
6139                        }
6140                    }
6141                } else {
6142                    if (DEBUG_EXTRACT) Log.v(TAG, "Span change outside of batch: "
6143                            + oldStart + "-" + oldEnd + ","
6144                            + newStart + "-" + newEnd + what);
6145                    ims.mContentChanged = true;
6146                }
6147            }
6148        }
6149    }
6150
6151    private class ChangeWatcher
6152    implements TextWatcher, SpanWatcher {
6153
6154        private CharSequence mBeforeText;
6155
6156        public void beforeTextChanged(CharSequence buffer, int start,
6157                                      int before, int after) {
6158            if (DEBUG_EXTRACT) Log.v(TAG, "beforeTextChanged start=" + start
6159                    + " before=" + before + " after=" + after + ": " + buffer);
6160
6161            if (AccessibilityManager.getInstance(mContext).isEnabled()) {
6162                mBeforeText = buffer.toString();
6163            }
6164
6165            TextView.this.sendBeforeTextChanged(buffer, start, before, after);
6166        }
6167
6168        public void onTextChanged(CharSequence buffer, int start,
6169                                  int before, int after) {
6170            if (DEBUG_EXTRACT) Log.v(TAG, "onTextChanged start=" + start
6171                    + " before=" + before + " after=" + after + ": " + buffer);
6172            TextView.this.handleTextChanged(buffer, start, before, after);
6173
6174            if (AccessibilityManager.getInstance(mContext).isEnabled() &&
6175                    (isFocused() || isSelected() &&
6176                    isShown())) {
6177                sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after);
6178                mBeforeText = null;
6179            }
6180        }
6181
6182        public void afterTextChanged(Editable buffer) {
6183            if (DEBUG_EXTRACT) Log.v(TAG, "afterTextChanged: " + buffer);
6184            TextView.this.sendAfterTextChanged(buffer);
6185
6186            if (MetaKeyKeyListener.getMetaState(buffer,
6187                                 MetaKeyKeyListener.META_SELECTING) != 0) {
6188                MetaKeyKeyListener.stopSelecting(TextView.this, buffer);
6189            }
6190        }
6191
6192        public void onSpanChanged(Spannable buf,
6193                                  Object what, int s, int e, int st, int en) {
6194            if (DEBUG_EXTRACT) Log.v(TAG, "onSpanChanged s=" + s + " e=" + e
6195                    + " st=" + st + " en=" + en + " what=" + what + ": " + buf);
6196            TextView.this.spanChange(buf, what, s, st, e, en);
6197        }
6198
6199        public void onSpanAdded(Spannable buf, Object what, int s, int e) {
6200            if (DEBUG_EXTRACT) Log.v(TAG, "onSpanAdded s=" + s + " e=" + e
6201                    + " what=" + what + ": " + buf);
6202            TextView.this.spanChange(buf, what, -1, s, -1, e);
6203        }
6204
6205        public void onSpanRemoved(Spannable buf, Object what, int s, int e) {
6206            if (DEBUG_EXTRACT) Log.v(TAG, "onSpanRemoved s=" + s + " e=" + e
6207                    + " what=" + what + ": " + buf);
6208            TextView.this.spanChange(buf, what, s, -1, e, -1);
6209        }
6210    }
6211
6212    private void makeBlink() {
6213        if (!mCursorVisible) {
6214            if (mBlink != null) {
6215                mBlink.removeCallbacks(mBlink);
6216            }
6217
6218            return;
6219        }
6220
6221        if (mBlink == null)
6222            mBlink = new Blink(this);
6223
6224        mBlink.removeCallbacks(mBlink);
6225        mBlink.postAtTime(mBlink, mShowCursor + BLINK);
6226    }
6227
6228    @Override
6229    public void onStartTemporaryDetach() {
6230        mTemporaryDetach = true;
6231    }
6232
6233    @Override
6234    public void onFinishTemporaryDetach() {
6235        mTemporaryDetach = false;
6236    }
6237
6238    @Override
6239    protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
6240        if (mTemporaryDetach) {
6241            // If we are temporarily in the detach state, then do nothing.
6242            super.onFocusChanged(focused, direction, previouslyFocusedRect);
6243            return;
6244        }
6245
6246        mShowCursor = SystemClock.uptimeMillis();
6247
6248        ensureEndedBatchEdit();
6249
6250        if (focused) {
6251            int selStart = getSelectionStart();
6252            int selEnd = getSelectionEnd();
6253
6254            if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) {
6255                boolean selMoved = mSelectionMoved;
6256
6257                if (mMovement != null) {
6258                    mMovement.onTakeFocus(this, (Spannable) mText, direction);
6259                }
6260
6261                if (mSelectAllOnFocus) {
6262                    Selection.setSelection((Spannable) mText, 0, mText.length());
6263                }
6264
6265                if (selMoved && selStart >= 0 && selEnd >= 0) {
6266                    /*
6267                     * Someone intentionally set the selection, so let them
6268                     * do whatever it is that they wanted to do instead of
6269                     * the default on-focus behavior.  We reset the selection
6270                     * here instead of just skipping the onTakeFocus() call
6271                     * because some movement methods do something other than
6272                     * just setting the selection in theirs and we still
6273                     * need to go through that path.
6274                     */
6275
6276                    Selection.setSelection((Spannable) mText, selStart, selEnd);
6277                }
6278                mTouchFocusSelected = true;
6279            }
6280
6281            mFrozenWithFocus = false;
6282            mSelectionMoved = false;
6283
6284            if (mText instanceof Spannable) {
6285                Spannable sp = (Spannable) mText;
6286                MetaKeyKeyListener.resetMetaState(sp);
6287            }
6288
6289            makeBlink();
6290
6291            if (mError != null) {
6292                showError();
6293            }
6294        } else {
6295            if (mError != null) {
6296                hideError();
6297            }
6298            // Don't leave us in the middle of a batch edit.
6299            onEndBatchEdit();
6300        }
6301
6302        startStopMarquee(focused);
6303
6304        if (mTransformation != null) {
6305            mTransformation.onFocusChanged(this, mText, focused, direction,
6306                                           previouslyFocusedRect);
6307        }
6308
6309        super.onFocusChanged(focused, direction, previouslyFocusedRect);
6310    }
6311
6312    @Override
6313    public void onWindowFocusChanged(boolean hasWindowFocus) {
6314        super.onWindowFocusChanged(hasWindowFocus);
6315
6316        if (hasWindowFocus) {
6317            if (mBlink != null) {
6318                mBlink.uncancel();
6319
6320                if (isFocused()) {
6321                    mShowCursor = SystemClock.uptimeMillis();
6322                    makeBlink();
6323                }
6324            }
6325        } else {
6326            if (mBlink != null) {
6327                mBlink.cancel();
6328            }
6329            // Don't leave us in the middle of a batch edit.
6330            onEndBatchEdit();
6331            if (mInputContentType != null) {
6332                mInputContentType.enterDown = false;
6333            }
6334        }
6335
6336        startStopMarquee(hasWindowFocus);
6337    }
6338
6339    /**
6340     * Use {@link BaseInputConnection#removeComposingSpans
6341     * BaseInputConnection.removeComposingSpans()} to remove any IME composing
6342     * state from this text view.
6343     */
6344    public void clearComposingText() {
6345        if (mText instanceof Spannable) {
6346            BaseInputConnection.removeComposingSpans((Spannable)mText);
6347        }
6348    }
6349
6350    @Override
6351    public void setSelected(boolean selected) {
6352        boolean wasSelected = isSelected();
6353
6354        super.setSelected(selected);
6355
6356        if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) {
6357            if (selected) {
6358                startMarquee();
6359            } else {
6360                stopMarquee();
6361            }
6362        }
6363    }
6364
6365    class CommitSelectionReceiver extends ResultReceiver {
6366        int mNewStart;
6367        int mNewEnd;
6368
6369        CommitSelectionReceiver() {
6370            super(getHandler());
6371        }
6372
6373        protected void onReceiveResult(int resultCode, Bundle resultData) {
6374            if (resultCode != InputMethodManager.RESULT_SHOWN) {
6375                Selection.setSelection((Spannable)mText, mNewStart, mNewEnd);
6376            }
6377        }
6378    }
6379
6380    @Override
6381    public boolean onTouchEvent(MotionEvent event) {
6382        final int action = event.getAction();
6383        if (action == MotionEvent.ACTION_DOWN) {
6384            // Reset this state; it will be re-set if super.onTouchEvent
6385            // causes focus to move to the view.
6386            mTouchFocusSelected = false;
6387        }
6388
6389        final boolean superResult = super.onTouchEvent(event);
6390
6391        /*
6392         * Don't handle the release after a long press, because it will
6393         * move the selection away from whatever the menu action was
6394         * trying to affect.
6395         */
6396        if (mEatTouchRelease && action == MotionEvent.ACTION_UP) {
6397            mEatTouchRelease = false;
6398            return superResult;
6399        }
6400
6401        if ((mMovement != null || onCheckIsTextEditor()) && mText instanceof Spannable && mLayout != null) {
6402
6403            if (action == MotionEvent.ACTION_DOWN) {
6404                mScrolled = false;
6405            }
6406
6407            boolean handled = false;
6408
6409            int oldSelStart = Selection.getSelectionStart(mText);
6410            int oldSelEnd = Selection.getSelectionEnd(mText);
6411
6412            if (mMovement != null) {
6413                handled |= mMovement.onTouchEvent(this, (Spannable) mText, event);
6414            }
6415
6416            if (mText instanceof Editable && onCheckIsTextEditor()) {
6417                if (action == MotionEvent.ACTION_UP && isFocused() && !mScrolled) {
6418                    InputMethodManager imm = (InputMethodManager)
6419                            getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
6420
6421                    // This is going to be gross...  if tapping on the text view
6422                    // causes the IME to be displayed, we don't want the selection
6423                    // to change.  But the selection has already changed, and
6424                    // we won't know right away whether the IME is getting
6425                    // displayed, so...
6426
6427                    int newSelStart = Selection.getSelectionStart(mText);
6428                    int newSelEnd = Selection.getSelectionEnd(mText);
6429                    CommitSelectionReceiver csr = null;
6430                    if (newSelStart != oldSelStart || newSelEnd != oldSelEnd) {
6431                        csr = new CommitSelectionReceiver();
6432                        csr.mNewStart = newSelStart;
6433                        csr.mNewEnd = newSelEnd;
6434                    }
6435
6436                    if (imm.showSoftInput(this, 0, csr) && csr != null) {
6437                        // The IME might get shown -- revert to the old
6438                        // selection, and change to the new when we finally
6439                        // find out of it is okay.
6440                        Selection.setSelection((Spannable)mText, oldSelStart, oldSelEnd);
6441                        handled = true;
6442                    }
6443                }
6444            }
6445
6446            if (handled) {
6447                return true;
6448            }
6449        }
6450
6451        return superResult;
6452    }
6453
6454    /**
6455     * Returns true, only while processing a touch gesture, if the initial
6456     * touch down event caused focus to move to the text view and as a result
6457     * its selection changed.  Only valid while processing the touch gesture
6458     * of interest.
6459     */
6460    public boolean didTouchFocusSelect() {
6461        return mTouchFocusSelected;
6462    }
6463
6464    @Override
6465    public void cancelLongPress() {
6466        super.cancelLongPress();
6467        mScrolled = true;
6468    }
6469
6470    @Override
6471    public boolean onTrackballEvent(MotionEvent event) {
6472        if (mMovement != null && mText instanceof Spannable &&
6473            mLayout != null) {
6474            if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) {
6475                return true;
6476            }
6477        }
6478
6479        return super.onTrackballEvent(event);
6480    }
6481
6482    public void setScroller(Scroller s) {
6483        mScroller = s;
6484    }
6485
6486    private static class Blink extends Handler implements Runnable {
6487        private WeakReference<TextView> mView;
6488        private boolean mCancelled;
6489
6490        public Blink(TextView v) {
6491            mView = new WeakReference<TextView>(v);
6492        }
6493
6494        public void run() {
6495            if (mCancelled) {
6496                return;
6497            }
6498
6499            removeCallbacks(Blink.this);
6500
6501            TextView tv = mView.get();
6502
6503            if (tv != null && tv.isFocused()) {
6504                int st = Selection.getSelectionStart(tv.mText);
6505                int en = Selection.getSelectionEnd(tv.mText);
6506
6507                if (st == en && st >= 0 && en >= 0) {
6508                    if (tv.mLayout != null) {
6509                        tv.invalidateCursorPath();
6510                    }
6511
6512                    postAtTime(this, SystemClock.uptimeMillis() + BLINK);
6513                }
6514            }
6515        }
6516
6517        void cancel() {
6518            if (!mCancelled) {
6519                removeCallbacks(Blink.this);
6520                mCancelled = true;
6521            }
6522        }
6523
6524        void uncancel() {
6525            mCancelled = false;
6526        }
6527    }
6528
6529    @Override
6530    protected float getLeftFadingEdgeStrength() {
6531        if (mEllipsize == TextUtils.TruncateAt.MARQUEE) {
6532            if (mMarquee != null && !mMarquee.isStopped()) {
6533                final Marquee marquee = mMarquee;
6534                if (marquee.shouldDrawLeftFade()) {
6535                    return marquee.mScroll / getHorizontalFadingEdgeLength();
6536                } else {
6537                    return 0.0f;
6538                }
6539            } else if (getLineCount() == 1) {
6540                switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
6541                    case Gravity.LEFT:
6542                        return 0.0f;
6543                    case Gravity.RIGHT:
6544                        return (mLayout.getLineRight(0) - (mRight - mLeft) -
6545                                getCompoundPaddingLeft() - getCompoundPaddingRight() -
6546                                mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength();
6547                    case Gravity.CENTER_HORIZONTAL:
6548                        return 0.0f;
6549                }
6550            }
6551        }
6552        return super.getLeftFadingEdgeStrength();
6553    }
6554
6555    @Override
6556    protected float getRightFadingEdgeStrength() {
6557        if (mEllipsize == TextUtils.TruncateAt.MARQUEE) {
6558            if (mMarquee != null && !mMarquee.isStopped()) {
6559                final Marquee marquee = mMarquee;
6560                return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength();
6561            } else if (getLineCount() == 1) {
6562                switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
6563                    case Gravity.LEFT:
6564                        return (mLayout.getLineRight(0) - mScrollX - (mRight - mLeft) -
6565                                getCompoundPaddingLeft() - getCompoundPaddingRight()) /
6566                                getHorizontalFadingEdgeLength();
6567                    case Gravity.RIGHT:
6568                        return 0.0f;
6569                    case Gravity.CENTER_HORIZONTAL:
6570                        return (mLayout.getLineWidth(0) - ((mRight - mLeft) -
6571                                getCompoundPaddingLeft() - getCompoundPaddingRight())) /
6572                                getHorizontalFadingEdgeLength();
6573                }
6574            }
6575        }
6576        return super.getRightFadingEdgeStrength();
6577    }
6578
6579    @Override
6580    protected int computeHorizontalScrollRange() {
6581        if (mLayout != null)
6582            return mLayout.getWidth();
6583
6584        return super.computeHorizontalScrollRange();
6585    }
6586
6587    @Override
6588    protected int computeVerticalScrollRange() {
6589        if (mLayout != null)
6590            return mLayout.getHeight();
6591
6592        return super.computeVerticalScrollRange();
6593    }
6594
6595    @Override
6596    protected int computeVerticalScrollExtent() {
6597        return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom();
6598    }
6599
6600    public enum BufferType {
6601        NORMAL, SPANNABLE, EDITABLE,
6602    }
6603
6604    /**
6605     * Returns the TextView_textColor attribute from the
6606     * Resources.StyledAttributes, if set, or the TextAppearance_textColor
6607     * from the TextView_textAppearance attribute, if TextView_textColor
6608     * was not set directly.
6609     */
6610    public static ColorStateList getTextColors(Context context, TypedArray attrs) {
6611        ColorStateList colors;
6612        colors = attrs.getColorStateList(com.android.internal.R.styleable.
6613                                         TextView_textColor);
6614
6615        if (colors == null) {
6616            int ap = attrs.getResourceId(com.android.internal.R.styleable.
6617                                         TextView_textAppearance, -1);
6618            if (ap != -1) {
6619                TypedArray appearance;
6620                appearance = context.obtainStyledAttributes(ap,
6621                                            com.android.internal.R.styleable.TextAppearance);
6622                colors = appearance.getColorStateList(com.android.internal.R.styleable.
6623                                                  TextAppearance_textColor);
6624                appearance.recycle();
6625            }
6626        }
6627
6628        return colors;
6629    }
6630
6631    /**
6632     * Returns the default color from the TextView_textColor attribute
6633     * from the AttributeSet, if set, or the default color from the
6634     * TextAppearance_textColor from the TextView_textAppearance attribute,
6635     * if TextView_textColor was not set directly.
6636     */
6637    public static int getTextColor(Context context,
6638                                   TypedArray attrs,
6639                                   int def) {
6640        ColorStateList colors = getTextColors(context, attrs);
6641
6642        if (colors == null) {
6643            return def;
6644        } else {
6645            return colors.getDefaultColor();
6646        }
6647    }
6648
6649    @Override
6650    public boolean onKeyShortcut(int keyCode, KeyEvent event) {
6651        switch (keyCode) {
6652        case KeyEvent.KEYCODE_A:
6653            if (canSelectAll()) {
6654                return onTextContextMenuItem(ID_SELECT_ALL);
6655            }
6656
6657            break;
6658
6659        case KeyEvent.KEYCODE_X:
6660            if (canCut()) {
6661                return onTextContextMenuItem(ID_CUT);
6662            }
6663
6664            break;
6665
6666        case KeyEvent.KEYCODE_C:
6667            if (canCopy()) {
6668                return onTextContextMenuItem(ID_COPY);
6669            }
6670
6671            break;
6672
6673        case KeyEvent.KEYCODE_V:
6674            if (canPaste()) {
6675                return onTextContextMenuItem(ID_PASTE);
6676            }
6677
6678            break;
6679        }
6680
6681        return super.onKeyShortcut(keyCode, event);
6682    }
6683
6684    private boolean canSelectAll() {
6685        if (mText instanceof Spannable && mText.length() != 0 &&
6686            mMovement != null && mMovement.canSelectArbitrarily()) {
6687            return true;
6688        }
6689
6690        return false;
6691    }
6692
6693    private boolean canSelectText() {
6694        if (mText instanceof Spannable && mText.length() != 0 &&
6695            mMovement != null && mMovement.canSelectArbitrarily()) {
6696            return true;
6697        }
6698
6699        return false;
6700    }
6701
6702    private boolean canCut() {
6703        if (mTransformation instanceof PasswordTransformationMethod) {
6704            return false;
6705        }
6706
6707        if (mText.length() > 0 && getSelectionStart() >= 0) {
6708            if (mText instanceof Editable && mInput != null) {
6709                return true;
6710            }
6711        }
6712
6713        return false;
6714    }
6715
6716    private boolean canCopy() {
6717        if (mTransformation instanceof PasswordTransformationMethod) {
6718            return false;
6719        }
6720
6721        if (mText.length() > 0 && getSelectionStart() >= 0) {
6722            return true;
6723        }
6724
6725        return false;
6726    }
6727
6728    private boolean canPaste() {
6729        if (mText instanceof Editable && mInput != null &&
6730            getSelectionStart() >= 0 && getSelectionEnd() >= 0) {
6731            ClipboardManager clip = (ClipboardManager)getContext()
6732                    .getSystemService(Context.CLIPBOARD_SERVICE);
6733            if (clip.hasText()) {
6734                return true;
6735            }
6736        }
6737
6738        return false;
6739    }
6740
6741    /**
6742     * Returns a word to add to the dictionary from the context menu,
6743     * or null if there is no cursor or no word at the cursor.
6744     */
6745    private String getWordForDictionary() {
6746        /*
6747         * Quick return if the input type is one where adding words
6748         * to the dictionary doesn't make any sense.
6749         */
6750        int klass = mInputType & InputType.TYPE_MASK_CLASS;
6751        if (klass == InputType.TYPE_CLASS_NUMBER ||
6752            klass == InputType.TYPE_CLASS_PHONE ||
6753            klass == InputType.TYPE_CLASS_DATETIME) {
6754            return null;
6755        }
6756
6757        int variation = mInputType & InputType.TYPE_MASK_VARIATION;
6758        if (variation == InputType.TYPE_TEXT_VARIATION_URI ||
6759            variation == InputType.TYPE_TEXT_VARIATION_PASSWORD ||
6760            variation == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD ||
6761            variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS ||
6762            variation == InputType.TYPE_TEXT_VARIATION_FILTER) {
6763            return null;
6764        }
6765
6766        int end = getSelectionEnd();
6767
6768        if (end < 0) {
6769            return null;
6770        }
6771
6772        int start = end;
6773        int len = mText.length();
6774
6775        for (; start > 0; start--) {
6776            char c = mTransformed.charAt(start - 1);
6777            int type = Character.getType(c);
6778
6779            if (c != '\'' &&
6780                type != Character.UPPERCASE_LETTER &&
6781                type != Character.LOWERCASE_LETTER &&
6782                type != Character.TITLECASE_LETTER &&
6783                type != Character.MODIFIER_LETTER &&
6784                type != Character.DECIMAL_DIGIT_NUMBER) {
6785                break;
6786            }
6787        }
6788
6789        for (; end < len; end++) {
6790            char c = mTransformed.charAt(end);
6791            int type = Character.getType(c);
6792
6793            if (c != '\'' &&
6794                type != Character.UPPERCASE_LETTER &&
6795                type != Character.LOWERCASE_LETTER &&
6796                type != Character.TITLECASE_LETTER &&
6797                type != Character.MODIFIER_LETTER &&
6798                type != Character.DECIMAL_DIGIT_NUMBER) {
6799                break;
6800            }
6801        }
6802
6803        if (start == end) {
6804            return null;
6805        }
6806
6807        if (end - start > 48) {
6808            return null;
6809        }
6810
6811        return TextUtils.substring(mTransformed, start, end);
6812    }
6813
6814    @Override
6815    public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
6816        boolean isPassword =
6817            (mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) ==
6818            (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD);
6819
6820        if (!isPassword) {
6821            CharSequence text = getText();
6822            if (TextUtils.isEmpty(text)) {
6823                text = getHint();
6824            }
6825            if (!TextUtils.isEmpty(text)) {
6826                if (text.length() > AccessibilityEvent.MAX_TEXT_LENGTH) {
6827                    text = text.subSequence(0, AccessibilityEvent.MAX_TEXT_LENGTH + 1);
6828                }
6829                event.getText().add(text);
6830            }
6831        } else {
6832            event.setPassword(isPassword);
6833        }
6834        return false;
6835    }
6836
6837    void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText,
6838            int fromIndex, int removedCount, int addedCount) {
6839        AccessibilityEvent event =
6840            AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED);
6841        event.setFromIndex(fromIndex);
6842        event.setRemovedCount(removedCount);
6843        event.setAddedCount(addedCount);
6844        event.setBeforeText(beforeText);
6845        sendAccessibilityEventUnchecked(event);
6846    }
6847
6848    @Override
6849    protected void onCreateContextMenu(ContextMenu menu) {
6850        super.onCreateContextMenu(menu);
6851        boolean added = false;
6852
6853        if (!isFocused()) {
6854            if (isFocusable() && mInput != null) {
6855                if (canCopy()) {
6856                    MenuHandler handler = new MenuHandler();
6857                    int name = com.android.internal.R.string.copyAll;
6858
6859                    menu.add(0, ID_COPY, 0, name).
6860                        setOnMenuItemClickListener(handler).
6861                        setAlphabeticShortcut('c');
6862                    menu.setHeaderTitle(com.android.internal.R.string.
6863                        editTextMenuTitle);
6864                }
6865            }
6866
6867            return;
6868        }
6869
6870        MenuHandler handler = new MenuHandler();
6871
6872        if (canSelectAll()) {
6873            menu.add(0, ID_SELECT_ALL, 0,
6874                    com.android.internal.R.string.selectAll).
6875                setOnMenuItemClickListener(handler).
6876                setAlphabeticShortcut('a');
6877            added = true;
6878        }
6879
6880        boolean selection = getSelectionStart() != getSelectionEnd();
6881
6882        if (canSelectText()) {
6883            if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) {
6884                menu.add(0, ID_STOP_SELECTING_TEXT, 0,
6885                        com.android.internal.R.string.stopSelectingText).
6886                    setOnMenuItemClickListener(handler);
6887                added = true;
6888            } else {
6889                menu.add(0, ID_START_SELECTING_TEXT, 0,
6890                        com.android.internal.R.string.selectText).
6891                    setOnMenuItemClickListener(handler);
6892                added = true;
6893            }
6894        }
6895
6896        if (canCut()) {
6897            int name;
6898            if (selection) {
6899                name = com.android.internal.R.string.cut;
6900            } else {
6901                name = com.android.internal.R.string.cutAll;
6902            }
6903
6904            menu.add(0, ID_CUT, 0, name).
6905                setOnMenuItemClickListener(handler).
6906                setAlphabeticShortcut('x');
6907            added = true;
6908        }
6909
6910        if (canCopy()) {
6911            int name;
6912            if (selection) {
6913                name = com.android.internal.R.string.copy;
6914            } else {
6915                name = com.android.internal.R.string.copyAll;
6916            }
6917
6918            menu.add(0, ID_COPY, 0, name).
6919                setOnMenuItemClickListener(handler).
6920                setAlphabeticShortcut('c');
6921            added = true;
6922        }
6923
6924        if (canPaste()) {
6925            menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste).
6926                    setOnMenuItemClickListener(handler).
6927                    setAlphabeticShortcut('v');
6928            added = true;
6929        }
6930
6931        if (mText instanceof Spanned) {
6932            int selStart = getSelectionStart();
6933            int selEnd = getSelectionEnd();
6934
6935            int min = Math.min(selStart, selEnd);
6936            int max = Math.max(selStart, selEnd);
6937
6938            URLSpan[] urls = ((Spanned) mText).getSpans(min, max,
6939                                                        URLSpan.class);
6940            if (urls.length == 1) {
6941                menu.add(0, ID_COPY_URL, 0,
6942                         com.android.internal.R.string.copyUrl).
6943                            setOnMenuItemClickListener(handler);
6944                added = true;
6945            }
6946        }
6947
6948        if (isInputMethodTarget()) {
6949            menu.add(1, ID_SWITCH_INPUT_METHOD, 0, com.android.internal.R.string.inputMethod).
6950                    setOnMenuItemClickListener(handler);
6951            added = true;
6952        }
6953
6954        String word = getWordForDictionary();
6955        if (word != null) {
6956            menu.add(1, ID_ADD_TO_DICTIONARY, 0,
6957                     getContext().getString(com.android.internal.R.string.addToDictionary, word)).
6958                    setOnMenuItemClickListener(handler);
6959            added = true;
6960
6961        }
6962
6963        if (added) {
6964            menu.setHeaderTitle(com.android.internal.R.string.editTextMenuTitle);
6965        }
6966    }
6967
6968    /**
6969     * Returns whether this text view is a current input method target.  The
6970     * default implementation just checks with {@link InputMethodManager}.
6971     */
6972    public boolean isInputMethodTarget() {
6973        InputMethodManager imm = InputMethodManager.peekInstance();
6974        return imm != null && imm.isActive(this);
6975    }
6976
6977    private static final int ID_SELECT_ALL = android.R.id.selectAll;
6978    private static final int ID_START_SELECTING_TEXT = android.R.id.startSelectingText;
6979    private static final int ID_STOP_SELECTING_TEXT = android.R.id.stopSelectingText;
6980    private static final int ID_CUT = android.R.id.cut;
6981    private static final int ID_COPY = android.R.id.copy;
6982    private static final int ID_PASTE = android.R.id.paste;
6983    private static final int ID_COPY_URL = android.R.id.copyUrl;
6984    private static final int ID_SWITCH_INPUT_METHOD = android.R.id.switchInputMethod;
6985    private static final int ID_ADD_TO_DICTIONARY = android.R.id.addToDictionary;
6986
6987    private class MenuHandler implements MenuItem.OnMenuItemClickListener {
6988        public boolean onMenuItemClick(MenuItem item) {
6989            return onTextContextMenuItem(item.getItemId());
6990        }
6991    }
6992
6993    /**
6994     * Called when a context menu option for the text view is selected.  Currently
6995     * this will be one of: {@link android.R.id#selectAll},
6996     * {@link android.R.id#startSelectingText}, {@link android.R.id#stopSelectingText},
6997     * {@link android.R.id#cut}, {@link android.R.id#copy},
6998     * {@link android.R.id#paste}, {@link android.R.id#copyUrl},
6999     * or {@link android.R.id#switchInputMethod}.
7000     */
7001    public boolean onTextContextMenuItem(int id) {
7002        int selStart = getSelectionStart();
7003        int selEnd = getSelectionEnd();
7004
7005        if (!isFocused()) {
7006            selStart = 0;
7007            selEnd = mText.length();
7008        }
7009
7010        int min = Math.min(selStart, selEnd);
7011        int max = Math.max(selStart, selEnd);
7012
7013        if (min < 0) {
7014            min = 0;
7015        }
7016        if (max < 0) {
7017            max = 0;
7018        }
7019
7020        ClipboardManager clip = (ClipboardManager)getContext()
7021                .getSystemService(Context.CLIPBOARD_SERVICE);
7022
7023        switch (id) {
7024            case ID_SELECT_ALL:
7025                Selection.setSelection((Spannable) mText, 0,
7026                        mText.length());
7027                return true;
7028
7029            case ID_START_SELECTING_TEXT:
7030                MetaKeyKeyListener.startSelecting(this, (Spannable) mText);
7031                return true;
7032
7033            case ID_STOP_SELECTING_TEXT:
7034                MetaKeyKeyListener.stopSelecting(this, (Spannable) mText);
7035                Selection.setSelection((Spannable) mText, getSelectionEnd());
7036                return true;
7037
7038            case ID_CUT:
7039                MetaKeyKeyListener.stopSelecting(this, (Spannable) mText);
7040
7041                if (min == max) {
7042                    min = 0;
7043                    max = mText.length();
7044                }
7045
7046                clip.setText(mTransformed.subSequence(min, max));
7047                ((Editable) mText).delete(min, max);
7048                return true;
7049
7050            case ID_COPY:
7051                MetaKeyKeyListener.stopSelecting(this, (Spannable) mText);
7052
7053                if (min == max) {
7054                    min = 0;
7055                    max = mText.length();
7056                }
7057
7058                clip.setText(mTransformed.subSequence(min, max));
7059                return true;
7060
7061            case ID_PASTE:
7062                MetaKeyKeyListener.stopSelecting(this, (Spannable) mText);
7063
7064                CharSequence paste = clip.getText();
7065
7066                if (paste != null) {
7067                    Selection.setSelection((Spannable) mText, max);
7068                    ((Editable) mText).replace(min, max, paste);
7069                }
7070
7071                return true;
7072
7073            case ID_COPY_URL:
7074                MetaKeyKeyListener.stopSelecting(this, (Spannable) mText);
7075
7076                URLSpan[] urls = ((Spanned) mText).getSpans(min, max,
7077                                                       URLSpan.class);
7078                if (urls.length == 1) {
7079                    clip.setText(urls[0].getURL());
7080                }
7081
7082                return true;
7083
7084            case ID_SWITCH_INPUT_METHOD:
7085                InputMethodManager imm = InputMethodManager.peekInstance();
7086                if (imm != null) {
7087                    imm.showInputMethodPicker();
7088                }
7089                return true;
7090
7091            case ID_ADD_TO_DICTIONARY:
7092                String word = getWordForDictionary();
7093
7094                if (word != null) {
7095                    Intent i = new Intent("com.android.settings.USER_DICTIONARY_INSERT");
7096                    i.putExtra("word", word);
7097                    getContext().startActivity(i);
7098                }
7099
7100                return true;
7101            }
7102
7103        return false;
7104    }
7105
7106    public boolean performLongClick() {
7107        if (super.performLongClick()) {
7108            mEatTouchRelease = true;
7109            return true;
7110        }
7111
7112        return false;
7113    }
7114
7115    @ViewDebug.ExportedProperty
7116    private CharSequence            mText;
7117    private CharSequence            mTransformed;
7118    private BufferType              mBufferType = BufferType.NORMAL;
7119
7120    private int                     mInputType = EditorInfo.TYPE_NULL;
7121    private CharSequence            mHint;
7122    private Layout                  mHintLayout;
7123
7124    private KeyListener             mInput;
7125
7126    private MovementMethod          mMovement;
7127    private TransformationMethod    mTransformation;
7128    private ChangeWatcher           mChangeWatcher;
7129
7130    private ArrayList<TextWatcher>  mListeners = null;
7131
7132    // display attributes
7133    private TextPaint               mTextPaint;
7134    private boolean                 mUserSetTextScaleX;
7135    private Paint                   mHighlightPaint;
7136    private int                     mHighlightColor = 0xFFBBDDFF;
7137    private Layout                  mLayout;
7138
7139    private long                    mShowCursor;
7140    private Blink                   mBlink;
7141    private boolean                 mCursorVisible = true;
7142
7143    private boolean                 mSelectAllOnFocus = false;
7144
7145    private int                     mGravity = Gravity.TOP | Gravity.LEFT;
7146    private boolean                 mHorizontallyScrolling;
7147
7148    private int                     mAutoLinkMask;
7149    private boolean                 mLinksClickable = true;
7150
7151    private float                   mSpacingMult = 1;
7152    private float                   mSpacingAdd = 0;
7153
7154    private static final int        LINES = 1;
7155    private static final int        EMS = LINES;
7156    private static final int        PIXELS = 2;
7157
7158    private int                     mMaximum = Integer.MAX_VALUE;
7159    private int                     mMaxMode = LINES;
7160    private int                     mMinimum = 0;
7161    private int                     mMinMode = LINES;
7162
7163    private int                     mMaxWidth = Integer.MAX_VALUE;
7164    private int                     mMaxWidthMode = PIXELS;
7165    private int                     mMinWidth = 0;
7166    private int                     mMinWidthMode = PIXELS;
7167
7168    private boolean                 mSingleLine;
7169    private int                     mDesiredHeightAtMeasure = -1;
7170    private boolean                 mIncludePad = true;
7171
7172    // tmp primitives, so we don't alloc them on each draw
7173    private Path                    mHighlightPath;
7174    private boolean                 mHighlightPathBogus = true;
7175    private static final RectF      sTempRect = new RectF();
7176
7177    // XXX should be much larger
7178    private static final int        VERY_WIDE = 16384;
7179
7180    private static final int        BLINK = 500;
7181
7182    private static final int ANIMATED_SCROLL_GAP = 250;
7183    private long mLastScroll;
7184    private Scroller mScroller = null;
7185
7186    private BoringLayout.Metrics mBoring;
7187    private BoringLayout.Metrics mHintBoring;
7188
7189    private BoringLayout mSavedLayout, mSavedHintLayout;
7190
7191    private static final InputFilter[] NO_FILTERS = new InputFilter[0];
7192    private InputFilter[] mFilters = NO_FILTERS;
7193    private static final Spanned EMPTY_SPANNED = new SpannedString("");
7194}
7195