AppCompatDelegateImplV7.java revision a73cf65dff6d7fa58907e614f95e1d3679de0a79 
1/*
2 * Copyright (C) 2013 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.support.v7.app;
18
19import android.app.Activity;
20import android.app.Dialog;
21import android.content.Context;
22import android.content.res.Configuration;
23import android.content.res.Resources;
24import android.content.res.TypedArray;
25import android.graphics.PixelFormat;
26import android.graphics.Rect;
27import android.media.AudioManager;
28import android.os.Build;
29import android.os.Bundle;
30import android.os.Parcel;
31import android.os.Parcelable;
32import android.support.annotation.NonNull;
33import android.support.v4.app.NavUtils;
34import android.support.v4.view.LayoutInflaterCompat;
35import android.support.v4.view.LayoutInflaterFactory;
36import android.support.v4.view.OnApplyWindowInsetsListener;
37import android.support.v4.view.ViewCompat;
38import android.support.v4.view.ViewConfigurationCompat;
39import android.support.v4.view.WindowInsetsCompat;
40import android.support.v7.appcompat.R;
41import android.support.v7.internal.app.TintViewInflater;
42import android.support.v7.internal.app.ToolbarActionBar;
43import android.support.v7.internal.app.WindowDecorActionBar;
44import android.support.v7.internal.view.ContextThemeWrapper;
45import android.support.v7.internal.view.StandaloneActionMode;
46import android.support.v7.internal.view.menu.ListMenuPresenter;
47import android.support.v7.internal.view.menu.MenuBuilder;
48import android.support.v7.internal.view.menu.MenuPresenter;
49import android.support.v7.internal.view.menu.MenuView;
50import android.support.v7.internal.widget.ActionBarContextView;
51import android.support.v7.internal.widget.DecorContentParent;
52import android.support.v7.internal.widget.FitWindowsViewGroup;
53import android.support.v7.internal.widget.TintManager;
54import android.support.v7.internal.widget.ViewStubCompat;
55import android.support.v7.internal.widget.ViewUtils;
56import android.support.v7.view.ActionMode;
57import android.support.v7.widget.Toolbar;
58import android.text.TextUtils;
59import android.util.AndroidRuntimeException;
60import android.util.AttributeSet;
61import android.util.DisplayMetrics;
62import android.util.Log;
63import android.util.TypedValue;
64import android.view.Gravity;
65import android.view.KeyCharacterMap;
66import android.view.KeyEvent;
67import android.view.LayoutInflater;
68import android.view.Menu;
69import android.view.MenuItem;
70import android.view.MotionEvent;
71import android.view.View;
72import android.view.ViewConfiguration;
73import android.view.ViewGroup;
74import android.view.ViewParent;
75import android.view.Window;
76import android.view.WindowManager;
77import android.view.accessibility.AccessibilityEvent;
78import android.widget.FrameLayout;
79import android.widget.PopupWindow;
80import android.widget.TextView;
81
82import static android.support.v4.view.WindowCompat.FEATURE_ACTION_BAR;
83import static android.support.v4.view.WindowCompat.FEATURE_ACTION_BAR_OVERLAY;
84import static android.support.v4.view.WindowCompat.FEATURE_ACTION_MODE_OVERLAY;
85import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
86import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT;
87import static android.view.Window.FEATURE_OPTIONS_PANEL;
88
89class AppCompatDelegateImplV7 extends AppCompatDelegateImplBase
90        implements MenuBuilder.Callback, LayoutInflaterFactory {
91
92    private DecorContentParent mDecorContentParent;
93    private ActionMenuPresenterCallback mActionMenuPresenterCallback;
94    private PanelMenuPresenterCallback mPanelMenuPresenterCallback;
95
96    ActionMode mActionMode;
97    ActionBarContextView mActionModeView;
98    PopupWindow mActionModePopup;
99    Runnable mShowActionModePopup;
100
101    // true if we have installed a window sub-decor layout.
102    private boolean mSubDecorInstalled;
103    private ViewGroup mWindowDecor;
104    private ViewGroup mSubDecor;
105
106    private TextView mTitleView;
107    private View mStatusGuard;
108
109    // Used to keep track of Progress Bar Window features
110    private boolean mFeatureProgress, mFeatureIndeterminateProgress;
111
112    // Used for emulating PanelFeatureState
113    private boolean mClosingActionMenu;
114    private PanelFeatureState[] mPanels;
115    private PanelFeatureState mPreparedPanel;
116
117    private boolean mInvalidatePanelMenuPosted;
118    private int mInvalidatePanelMenuFeatures;
119    private final Runnable mInvalidatePanelMenuRunnable = new Runnable() {
120        @Override
121        public void run() {
122            if ((mInvalidatePanelMenuFeatures & 1 << FEATURE_OPTIONS_PANEL) != 0) {
123                doInvalidatePanelMenu(FEATURE_OPTIONS_PANEL);
124            }
125            if ((mInvalidatePanelMenuFeatures & 1 << FEATURE_ACTION_BAR) != 0) {
126                doInvalidatePanelMenu(FEATURE_ACTION_BAR);
127            }
128            mInvalidatePanelMenuPosted = false;
129            mInvalidatePanelMenuFeatures = 0;
130        }
131    };
132
133    private boolean mEnableDefaultActionBarUp;
134
135    private Rect mTempRect1;
136    private Rect mTempRect2;
137
138    private TintViewInflater mTintViewInflater;
139
140    AppCompatDelegateImplV7(Context context, Window window, AppCompatCallback callback) {
141        super(context, window, callback);
142    }
143
144    @Override
145    public void onCreate(Bundle savedInstanceState) {
146        super.onCreate(savedInstanceState);
147
148        mWindowDecor = (ViewGroup) mWindow.getDecorView();
149
150        if (mOriginalWindowCallback instanceof Activity) {
151            if (NavUtils.getParentActivityName((Activity) mOriginalWindowCallback) != null) {
152                // Peek at the Action Bar and update it if it already exists
153                ActionBar ab = peekSupportActionBar();
154                if (ab == null) {
155                    mEnableDefaultActionBarUp = true;
156                } else {
157                    ab.setDefaultDisplayHomeAsUpEnabled(true);
158                }
159            }
160        }
161    }
162
163    @Override
164    public void onPostCreate(Bundle savedInstanceState) {
165        // Make sure that the sub decor is installed
166        ensureSubDecor();
167    }
168
169    @Override
170    public ActionBar createSupportActionBar() {
171        ensureSubDecor();
172        ActionBar ab = null;
173        if (mOriginalWindowCallback instanceof Activity) {
174            ab = new WindowDecorActionBar((Activity) mOriginalWindowCallback, mOverlayActionBar);
175        } else if (mOriginalWindowCallback instanceof Dialog) {
176            ab = new WindowDecorActionBar((Dialog) mOriginalWindowCallback);
177        }
178        if (ab != null) {
179            ab.setDefaultDisplayHomeAsUpEnabled(mEnableDefaultActionBarUp);
180        }
181        return ab;
182    }
183
184    @Override
185    public void setSupportActionBar(Toolbar toolbar) {
186        if (!(mOriginalWindowCallback instanceof Activity)) {
187            // Only Activities support custom Action Bars
188            return;
189        }
190
191        final ActionBar ab = getSupportActionBar();
192        if (ab instanceof WindowDecorActionBar) {
193            throw new IllegalStateException("This Activity already has an action bar supplied " +
194                    "by the window decor. Do not request Window.FEATURE_ACTION_BAR and set " +
195                    "windowActionBar to false in your theme to use a Toolbar instead.");
196        }
197
198        ToolbarActionBar tbab = new ToolbarActionBar(toolbar, ((Activity) mContext).getTitle(),
199                mWindow);
200        setSupportActionBar(tbab);
201        mWindow.setCallback(tbab.getWrappedWindowCallback());
202        tbab.invalidateOptionsMenu();
203    }
204
205    @Override
206    public void onConfigurationChanged(Configuration newConfig) {
207        // If this is called before sub-decor is installed, ActionBar will not
208        // be properly initialized.
209        if (mHasActionBar && mSubDecorInstalled) {
210            // Note: The action bar will need to access
211            // view changes from superclass.
212            ActionBar ab = getSupportActionBar();
213            if (ab != null) {
214                ab.onConfigurationChanged(newConfig);
215            }
216        }
217    }
218
219    @Override
220    public void onStop() {
221        ActionBar ab = getSupportActionBar();
222        if (ab != null) {
223            ab.setShowHideAnimationEnabled(false);
224        }
225    }
226
227    @Override
228    public void onPostResume() {
229        ActionBar ab = getSupportActionBar();
230        if (ab != null) {
231            ab.setShowHideAnimationEnabled(true);
232        }
233    }
234
235    @Override
236    public void setContentView(View v) {
237        ensureSubDecor();
238        ViewGroup contentParent = (ViewGroup) mSubDecor.findViewById(android.R.id.content);
239        contentParent.removeAllViews();
240        contentParent.addView(v);
241        mOriginalWindowCallback.onContentChanged();
242    }
243
244    @Override
245    public void setContentView(int resId) {
246        ensureSubDecor();
247        ViewGroup contentParent = (ViewGroup) mSubDecor.findViewById(android.R.id.content);
248        contentParent.removeAllViews();
249        LayoutInflater.from(mContext).inflate(resId, contentParent);
250        mOriginalWindowCallback.onContentChanged();
251    }
252
253    @Override
254    public void setContentView(View v, ViewGroup.LayoutParams lp) {
255        ensureSubDecor();
256        ViewGroup contentParent = (ViewGroup) mSubDecor.findViewById(android.R.id.content);
257        contentParent.removeAllViews();
258        contentParent.addView(v, lp);
259        mOriginalWindowCallback.onContentChanged();
260    }
261
262    @Override
263    public void addContentView(View v, ViewGroup.LayoutParams lp) {
264        ensureSubDecor();
265        ViewGroup contentParent = (ViewGroup) mSubDecor.findViewById(android.R.id.content);
266        contentParent.addView(v, lp);
267        mOriginalWindowCallback.onContentChanged();
268    }
269
270    private void ensureSubDecor() {
271        if (!mSubDecorInstalled) {
272            final LayoutInflater inflater = LayoutInflater.from(mContext);
273
274            if (!mWindowNoTitle) {
275                if (mIsFloating) {
276                    // If we're floating, inflate the dialog title decor
277                    mSubDecor = (ViewGroup) inflater.inflate(
278                            R.layout.abc_dialog_title_material, null);
279                } else if (mHasActionBar) {
280                    /**
281                     * This needs some explanation. As we can not use the android:theme attribute
282                     * pre-L, we emulate it by manually creating a LayoutInflater using a
283                     * ContextThemeWrapper pointing to actionBarTheme.
284                     */
285                    TypedValue outValue = new TypedValue();
286                    mContext.getTheme().resolveAttribute(R.attr.actionBarTheme, outValue, true);
287
288                    Context themedContext;
289                    if (outValue.resourceId != 0) {
290                        themedContext = new ContextThemeWrapper(mContext, outValue.resourceId);
291                    } else {
292                        themedContext = mContext;
293                    }
294
295                    // Now inflate the view using the themed context and set it as the content view
296                    mSubDecor = (ViewGroup) LayoutInflater.from(themedContext)
297                            .inflate(R.layout.abc_screen_toolbar, null);
298
299                    mDecorContentParent = (DecorContentParent) mSubDecor
300                            .findViewById(R.id.decor_content_parent);
301                    mDecorContentParent.setWindowCallback(getWindowCallback());
302
303                    /**
304                     * Propagate features to DecorContentParent
305                     */
306                    if (mOverlayActionBar) {
307                        mDecorContentParent.initFeature(FEATURE_ACTION_BAR_OVERLAY);
308                    }
309                    if (mFeatureProgress) {
310                        mDecorContentParent.initFeature(Window.FEATURE_PROGRESS);
311                    }
312                    if (mFeatureIndeterminateProgress) {
313                        mDecorContentParent.initFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
314                    }
315                }
316            } else {
317                if (mOverlayActionMode) {
318                    mSubDecor = (ViewGroup) inflater.inflate(
319                            R.layout.abc_screen_simple_overlay_action_mode, null);
320                } else {
321                    mSubDecor = (ViewGroup) inflater.inflate(R.layout.abc_screen_simple, null);
322                }
323
324                if (Build.VERSION.SDK_INT >= 21) {
325                    // If we're running on L or above, we can rely on ViewCompat's
326                    // setOnApplyWindowInsetsListener
327                    ViewCompat.setOnApplyWindowInsetsListener(mSubDecor,
328                            new OnApplyWindowInsetsListener() {
329                                @Override
330                                public WindowInsetsCompat onApplyWindowInsets(View v,
331                                        WindowInsetsCompat insets) {
332                                    final int top = insets.getSystemWindowInsetTop();
333                                    final int newTop = updateStatusGuard(top);
334
335                                    if (top != newTop) {
336                                        insets = insets.replaceSystemWindowInsets(
337                                                insets.getSystemWindowInsetLeft(),
338                                                newTop,
339                                                insets.getSystemWindowInsetRight(),
340                                                insets.getSystemWindowInsetBottom());
341                                    }
342
343                                    // Now apply the insets on our view
344                                    return ViewCompat.onApplyWindowInsets(v, insets);
345                                }
346                            });
347                } else {
348                    // Else, we need to use our own FitWindowsViewGroup handling
349                    ((FitWindowsViewGroup) mSubDecor).setOnFitSystemWindowsListener(
350                            new FitWindowsViewGroup.OnFitSystemWindowsListener() {
351                                @Override
352                                public void onFitSystemWindows(Rect insets) {
353                                    insets.top = updateStatusGuard(insets.top);
354                                }
355                            });
356                }
357            }
358
359            if (mSubDecor == null) {
360                throw new IllegalArgumentException(
361                        "AppCompat does not support the current theme features");
362            }
363
364            if (mDecorContentParent == null) {
365                mTitleView = (TextView) mSubDecor.findViewById(R.id.title);
366            }
367
368            // Make the decor optionally fit system windows, like the window's decor
369            ViewUtils.makeOptionalFitsSystemWindows(mSubDecor);
370
371            final ViewGroup decorContent = (ViewGroup) mWindow.findViewById(android.R.id.content);
372            final ViewGroup abcContent = (ViewGroup) mSubDecor.findViewById(
373                    R.id.action_bar_activity_content);
374
375            // There might be Views already added to the Window's content view so we need to
376            // migrate them to our content view
377            while (decorContent.getChildCount() > 0) {
378                final View child = decorContent.getChildAt(0);
379                decorContent.removeViewAt(0);
380                abcContent.addView(child);
381            }
382
383            // Now set the Window's content view with the decor
384            mWindow.setContentView(mSubDecor);
385
386            // Change our content FrameLayout to use the android.R.id.content id.
387            // Useful for fragments.
388            decorContent.setId(View.NO_ID);
389            abcContent.setId(android.R.id.content);
390
391            // The decorContent may have a foreground drawable set (windowContentOverlay).
392            // Remove this as we handle it ourselves
393            if (decorContent instanceof FrameLayout) {
394                ((FrameLayout) decorContent).setForeground(null);
395            }
396
397            // If a title was set before we installed the decor, propogate it now
398            CharSequence title = getTitle();
399            if (!TextUtils.isEmpty(title)) {
400                onTitleChanged(title);
401            }
402
403            applyFixedSizeWindow();
404
405            onSubDecorInstalled(mSubDecor);
406
407            mSubDecorInstalled = true;
408
409            // Invalidate if the panel menu hasn't been created before this.
410            // Panel menu invalidation is deferred avoiding application onCreateOptionsMenu
411            // being called in the middle of onCreate or similar.
412            // A pending invalidation will typically be resolved before the posted message
413            // would run normally in order to satisfy instance state restoration.
414            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
415            if (!isDestroyed() && (st == null || st.menu == null)) {
416                invalidatePanelMenu(FEATURE_ACTION_BAR);
417            }
418        }
419    }
420
421    void onSubDecorInstalled(ViewGroup subDecor) {}
422
423    private void applyFixedSizeWindow() {
424        TypedArray a = mContext.obtainStyledAttributes(R.styleable.Theme);
425
426        TypedValue mFixedWidthMajor = null;
427        TypedValue mFixedWidthMinor = null;
428        TypedValue mFixedHeightMajor = null;
429        TypedValue mFixedHeightMinor = null;
430
431        if (a.hasValue(R.styleable.Theme_windowFixedWidthMajor)) {
432            if (mFixedWidthMajor == null) mFixedWidthMajor = new TypedValue();
433            a.getValue(R.styleable.Theme_windowFixedWidthMajor, mFixedWidthMajor);
434        }
435        if (a.hasValue(R.styleable.Theme_windowFixedWidthMinor)) {
436            if (mFixedWidthMinor == null) mFixedWidthMinor = new TypedValue();
437            a.getValue(R.styleable.Theme_windowFixedWidthMinor, mFixedWidthMinor);
438        }
439        if (a.hasValue(R.styleable.Theme_windowFixedHeightMajor)) {
440            if (mFixedHeightMajor == null) mFixedHeightMajor = new TypedValue();
441            a.getValue(R.styleable.Theme_windowFixedHeightMajor, mFixedHeightMajor);
442        }
443        if (a.hasValue(R.styleable.Theme_windowFixedHeightMinor)) {
444            if (mFixedHeightMinor == null) mFixedHeightMinor = new TypedValue();
445            a.getValue(R.styleable.Theme_windowFixedHeightMinor, mFixedHeightMinor);
446        }
447
448        final DisplayMetrics metrics = mContext.getResources().getDisplayMetrics();
449        final boolean isPortrait = metrics.widthPixels < metrics.heightPixels;
450        int w = ViewGroup.LayoutParams.MATCH_PARENT;
451        int h = ViewGroup.LayoutParams.MATCH_PARENT;
452
453        final TypedValue tvw = isPortrait ? mFixedWidthMinor : mFixedWidthMajor;
454        if (tvw != null && tvw.type != TypedValue.TYPE_NULL) {
455            if (tvw.type == TypedValue.TYPE_DIMENSION) {
456                w = (int) tvw.getDimension(metrics);
457            } else if (tvw.type == TypedValue.TYPE_FRACTION) {
458                w = (int) tvw.getFraction(metrics.widthPixels, metrics.widthPixels);
459            }
460        }
461
462        final TypedValue tvh = isPortrait ? mFixedHeightMajor : mFixedHeightMinor;
463        if (tvh != null && tvh.type != TypedValue.TYPE_NULL) {
464            if (tvh.type == TypedValue.TYPE_DIMENSION) {
465                h = (int) tvh.getDimension(metrics);
466            } else if (tvh.type == TypedValue.TYPE_FRACTION) {
467                h = (int) tvh.getFraction(metrics.heightPixels, metrics.heightPixels);
468            }
469        }
470
471        if (w != ViewGroup.LayoutParams.MATCH_PARENT || h != ViewGroup.LayoutParams.MATCH_PARENT) {
472            mWindow.setLayout(w, h);
473        }
474
475        a.recycle();
476    }
477
478    @Override
479    public boolean requestWindowFeature(int featureId) {
480        switch (featureId) {
481            case FEATURE_ACTION_BAR:
482                throwFeatureRequestIfSubDecorInstalled();
483                mHasActionBar = true;
484                return true;
485            case FEATURE_ACTION_BAR_OVERLAY:
486                throwFeatureRequestIfSubDecorInstalled();
487                mOverlayActionBar = true;
488                return true;
489            case FEATURE_ACTION_MODE_OVERLAY:
490                throwFeatureRequestIfSubDecorInstalled();
491                mOverlayActionMode = true;
492                return true;
493            case Window.FEATURE_PROGRESS:
494                throwFeatureRequestIfSubDecorInstalled();
495                mFeatureProgress = true;
496                return true;
497            case Window.FEATURE_INDETERMINATE_PROGRESS:
498                throwFeatureRequestIfSubDecorInstalled();
499                mFeatureIndeterminateProgress = true;
500                return true;
501        }
502
503        return mWindow.requestFeature(featureId);
504    }
505
506    @Override
507    void onTitleChanged(CharSequence title) {
508        if (mDecorContentParent != null) {
509            mDecorContentParent.setWindowTitle(title);
510        } else if (getSupportActionBar() != null) {
511            getSupportActionBar().setWindowTitle(title);
512        } else if (mTitleView != null) {
513            mTitleView.setText(title);
514        }
515    }
516
517    @Override
518    boolean onPanelClosed(final int featureId, Menu menu) {
519        if (featureId == FEATURE_ACTION_BAR) {
520            ActionBar ab = getSupportActionBar();
521            if (ab != null) {
522                ab.dispatchMenuVisibilityChanged(false);
523            }
524            return true;
525        } else if (featureId == FEATURE_OPTIONS_PANEL) {
526            // Make sure that the options panel is closed. This is mainly used when we're using a
527            // ToolbarActionBar
528            PanelFeatureState st = getPanelState(featureId, true);
529            if (st.isOpen) {
530                closePanel(st, false);
531            }
532        }
533        return false;
534    }
535
536    @Override
537    boolean onMenuOpened(final int featureId, Menu menu) {
538        if (featureId == FEATURE_ACTION_BAR) {
539            ActionBar ab = getSupportActionBar();
540            if (ab != null) {
541                ab.dispatchMenuVisibilityChanged(true);
542            }
543            return true;
544        }
545        return false;
546    }
547
548    @Override
549    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
550        final Window.Callback cb = getWindowCallback();
551        if (cb != null && !isDestroyed()) {
552            final PanelFeatureState panel = findMenuPanel(menu.getRootMenu());
553            if (panel != null) {
554                return cb.onMenuItemSelected(panel.featureId, item);
555            }
556        }
557        return false;
558    }
559
560    @Override
561    public void onMenuModeChange(MenuBuilder menu) {
562        reopenMenu(menu, true);
563    }
564
565    @Override
566    public ActionMode startSupportActionMode(ActionMode.Callback callback) {
567        if (callback == null) {
568            throw new IllegalArgumentException("ActionMode callback can not be null.");
569        }
570
571        if (mActionMode != null) {
572            mActionMode.finish();
573        }
574
575        final ActionMode.Callback wrappedCallback = new ActionModeCallbackWrapper(callback);
576
577        ActionBar ab = getSupportActionBar();
578        if (ab != null) {
579            mActionMode = ab.startActionMode(wrappedCallback);
580            if (mActionMode != null && mAppCompatCallback != null) {
581                mAppCompatCallback.onSupportActionModeStarted(mActionMode);
582            }
583        }
584
585        if (mActionMode == null) {
586            // If the action bar didn't provide an action mode, start the emulated window one
587            mActionMode = startSupportActionModeFromWindow(wrappedCallback);
588        }
589
590        return mActionMode;
591    }
592
593    @Override
594    public void invalidateOptionsMenu() {
595        final ActionBar ab = getSupportActionBar();
596        if (ab != null && ab.invalidateOptionsMenu()) return;
597
598        invalidatePanelMenu(FEATURE_OPTIONS_PANEL);
599    }
600
601    @Override
602    ActionMode startSupportActionModeFromWindow(ActionMode.Callback callback) {
603        if (mActionMode != null) {
604            mActionMode.finish();
605        }
606
607        final ActionMode.Callback wrappedCallback = new ActionModeCallbackWrapper(callback);
608        final Context context = getActionBarThemedContext();
609
610        if (mActionModeView == null) {
611            if (mIsFloating) {
612                mActionModeView = new ActionBarContextView(context);
613                mActionModePopup = new PopupWindow(context, null,
614                        R.attr.actionModePopupWindowStyle);
615                mActionModePopup.setContentView(mActionModeView);
616                mActionModePopup.setWidth(ViewGroup.LayoutParams.MATCH_PARENT);
617
618                TypedValue heightValue = new TypedValue();
619                mContext.getTheme().resolveAttribute(R.attr.actionBarSize, heightValue, true);
620                final int height = TypedValue.complexToDimensionPixelSize(heightValue.data,
621                        mContext.getResources().getDisplayMetrics());
622                mActionModeView.setContentHeight(height);
623                mActionModePopup.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
624                mShowActionModePopup = new Runnable() {
625                    public void run() {
626                        mActionModePopup.showAtLocation(
627                                mActionModeView,
628                                Gravity.TOP | Gravity.FILL_HORIZONTAL, 0, 0);
629                    }
630                };
631            } else {
632                ViewStubCompat stub = (ViewStubCompat) mSubDecor
633                        .findViewById(R.id.action_mode_bar_stub);
634                if (stub != null) {
635                    // Set the layout inflater so that it is inflated with the action bar's context
636                    stub.setLayoutInflater(LayoutInflater.from(context));
637                    mActionModeView = (ActionBarContextView) stub.inflate();
638                }
639            }
640        }
641
642        if (mActionModeView != null) {
643            mActionModeView.killMode();
644            ActionMode mode = new StandaloneActionMode(context, mActionModeView, wrappedCallback,
645                    mActionModePopup == null);
646            if (callback.onCreateActionMode(mode, mode.getMenu())) {
647                mode.invalidate();
648                mActionModeView.initForMode(mode);
649                mActionModeView.setVisibility(View.VISIBLE);
650                mActionMode = mode;
651                if (mActionModePopup != null) {
652                    mWindow.getDecorView().post(mShowActionModePopup);
653                }
654                mActionModeView.sendAccessibilityEvent(
655                        AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
656
657                if (mActionModeView.getParent() != null) {
658                    ViewCompat.requestApplyInsets((View) mActionModeView.getParent());
659                }
660            } else {
661                mActionMode = null;
662            }
663        }
664        if (mActionMode != null && mAppCompatCallback != null) {
665            mAppCompatCallback.onSupportActionModeStarted(mActionMode);
666        }
667        return mActionMode;
668    }
669
670    boolean onBackPressed() {
671        // Back cancels action modes first.
672        if (mActionMode != null) {
673            mActionMode.finish();
674            return true;
675        }
676
677        // Next collapse any expanded action views.
678        ActionBar ab = getSupportActionBar();
679        if (ab != null && ab.collapseActionView()) {
680            return true;
681        }
682
683        // Let the call through...
684        return false;
685    }
686
687    @Override
688    boolean onKeyShortcut(int keyCode, KeyEvent ev) {
689        // Let the Action Bar have a chance at handling the shortcut
690        ActionBar ab = getSupportActionBar();
691        if (ab != null && ab.onKeyShortcut(keyCode, ev)) {
692            return true;
693        }
694
695        // If the panel is already prepared, then perform the shortcut using it.
696        boolean handled;
697        if (mPreparedPanel != null) {
698            handled = performPanelShortcut(mPreparedPanel, ev.getKeyCode(), ev,
699                    Menu.FLAG_PERFORM_NO_CLOSE);
700            if (handled) {
701                if (mPreparedPanel != null) {
702                    mPreparedPanel.isHandled = true;
703                }
704                return true;
705            }
706        }
707
708        // If the panel is not prepared, then we may be trying to handle a shortcut key
709        // combination such as Control+C.  Temporarily prepare the panel then mark it
710        // unprepared again when finished to ensure that the panel will again be prepared
711        // the next time it is shown for real.
712        if (mPreparedPanel == null) {
713            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
714            preparePanel(st, ev);
715            handled = performPanelShortcut(st, ev.getKeyCode(), ev, Menu.FLAG_PERFORM_NO_CLOSE);
716            st.isPrepared = false;
717            if (handled) {
718                return true;
719            }
720        }
721        return false;
722    }
723
724    @Override
725    boolean dispatchKeyEvent(KeyEvent event) {
726        final int keyCode = event.getKeyCode();
727        final int action = event.getAction();
728        final boolean isDown = action == KeyEvent.ACTION_DOWN;
729
730        return isDown ? onKeyDown(keyCode, event) : onKeyUp(keyCode, event);
731    }
732
733    boolean onKeyUp(int keyCode, KeyEvent event) {
734        switch (keyCode) {
735            case KeyEvent.KEYCODE_MENU:
736                onKeyUpPanel(Window.FEATURE_OPTIONS_PANEL, event);
737                return true;
738            case KeyEvent.KEYCODE_BACK:
739                PanelFeatureState st = getPanelState(Window.FEATURE_OPTIONS_PANEL, false);
740                if (st != null && st.isOpen) {
741                    closePanel(st, true);
742                    return true;
743                }
744                if (onBackPressed()) {
745                    return true;
746                }
747                break;
748        }
749        return false;
750    }
751
752    boolean onKeyDown(int keyCode, KeyEvent event) {
753        switch (keyCode) {
754            case KeyEvent.KEYCODE_MENU:
755                onKeyDownPanel(Window.FEATURE_OPTIONS_PANEL, event);
756                return true;
757        }
758
759        // On API v7-10 we need to manually call onKeyShortcut() as this is not called
760        // from the Activity
761        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB) {
762            return onKeyShortcut(keyCode, event);
763        }
764        return false;
765    }
766
767    @Override
768    public View createView(View parent, final String name, @NonNull Context context,
769            @NonNull AttributeSet attrs) {
770        final boolean isPre21 = Build.VERSION.SDK_INT < 21;
771
772        if (mTintViewInflater == null) {
773            mTintViewInflater = new TintViewInflater(mContext);
774        }
775
776        // We only want the View to inherit it's context from the parent if it is from the
777        // apps content, and not part of our sub-decor
778        final boolean inheritContext = isPre21 && mSubDecorInstalled && parent != null
779                && parent.getId() != android.R.id.content;
780
781        return mTintViewInflater.createView(parent, name, context, attrs,
782                inheritContext, isPre21);
783    }
784
785    @Override
786    public void installViewFactory() {
787        LayoutInflater layoutInflater = LayoutInflater.from(mContext);
788        if (layoutInflater.getFactory() == null) {
789            LayoutInflaterCompat.setFactory(layoutInflater, this);
790        } else {
791            Log.i(TAG, "The Activity's LayoutInflater already has a Factory installed"
792                    + " so we can not install AppCompat's");
793        }
794    }
795
796    /**
797     * From {@link android.support.v4.view.LayoutInflaterFactory}
798     */
799    @Override
800    public View onCreateView(View parent, String name,
801            Context context, AttributeSet attrs) {
802
803        // First let the Activity's LayoutInflater.Factory try and handle it
804        if (mOriginalWindowCallback instanceof LayoutInflater.Factory) {
805            View result = ((LayoutInflater.Factory) mOriginalWindowCallback)
806                    .onCreateView(name, context, attrs);
807            if (result != null) {
808                return result;
809            }
810        }
811
812        // If the Factory didn't handle it, let our createView() method try
813        return createView(parent, name, context, attrs);
814    }
815
816    private void openPanel(final PanelFeatureState st, KeyEvent event) {
817        // Already open, return
818        if (st.isOpen || isDestroyed()) {
819            return;
820        }
821
822        // Don't open an options panel for honeycomb apps on xlarge devices.
823        // (The app should be using an action bar for menu items.)
824        if (st.featureId == FEATURE_OPTIONS_PANEL) {
825            Context context = mContext;
826            Configuration config = context.getResources().getConfiguration();
827            boolean isXLarge = (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) ==
828                    Configuration.SCREENLAYOUT_SIZE_XLARGE;
829            boolean isHoneycombApp = context.getApplicationInfo().targetSdkVersion >=
830                    android.os.Build.VERSION_CODES.HONEYCOMB;
831
832            if (isXLarge && isHoneycombApp) {
833                return;
834            }
835        }
836
837        Window.Callback cb = getWindowCallback();
838        if ((cb != null) && (!cb.onMenuOpened(st.featureId, st.menu))) {
839            // Callback doesn't want the menu to open, reset any state
840            closePanel(st, true);
841            return;
842        }
843
844        final WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
845        if (wm == null) {
846            return;
847        }
848
849        // Prepare panel (should have been done before, but just in case)
850        if (!preparePanel(st, event)) {
851            return;
852        }
853
854        int width = WRAP_CONTENT;
855        if (st.decorView == null || st.refreshDecorView) {
856            if (st.decorView == null) {
857                // Initialize the panel decor, this will populate st.decorView
858                if (!initializePanelDecor(st) || (st.decorView == null))
859                    return;
860            } else if (st.refreshDecorView && (st.decorView.getChildCount() > 0)) {
861                // Decor needs refreshing, so remove its views
862                st.decorView.removeAllViews();
863            }
864
865            // This will populate st.shownPanelView
866            if (!initializePanelContent(st) || !st.hasPanelItems()) {
867                return;
868            }
869
870            ViewGroup.LayoutParams lp = st.shownPanelView.getLayoutParams();
871            if (lp == null) {
872                lp = new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
873            }
874
875            int backgroundResId = st.background;
876            st.decorView.setBackgroundResource(backgroundResId);
877
878            ViewParent shownPanelParent = st.shownPanelView.getParent();
879            if (shownPanelParent != null && shownPanelParent instanceof ViewGroup) {
880                ((ViewGroup) shownPanelParent).removeView(st.shownPanelView);
881            }
882            st.decorView.addView(st.shownPanelView, lp);
883
884            /*
885             * Give focus to the view, if it or one of its children does not
886             * already have it.
887             */
888            if (!st.shownPanelView.hasFocus()) {
889                st.shownPanelView.requestFocus();
890            }
891        } else if (st.createdPanelView != null) {
892            // If we already had a panel view, carry width=MATCH_PARENT through
893            // as we did above when it was created.
894            ViewGroup.LayoutParams lp = st.createdPanelView.getLayoutParams();
895            if (lp != null && lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
896                width = MATCH_PARENT;
897            }
898        }
899
900        st.isHandled = false;
901
902        WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
903                width, WRAP_CONTENT,
904                st.x, st.y, WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL,
905                WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM
906                        | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH,
907                PixelFormat.TRANSLUCENT);
908
909        lp.gravity = st.gravity;
910        lp.windowAnimations = st.windowAnimations;
911
912        wm.addView(st.decorView, lp);
913        st.isOpen = true;
914    }
915
916    private boolean initializePanelDecor(PanelFeatureState st) {
917        st.setStyle(getActionBarThemedContext());
918        st.decorView = new ListMenuDecorView(st.listPresenterContext);
919        st.gravity = Gravity.CENTER | Gravity.BOTTOM;
920        return true;
921    }
922
923    private void reopenMenu(MenuBuilder menu, boolean toggleMenuMode) {
924        if (mDecorContentParent != null && mDecorContentParent.canShowOverflowMenu() &&
925                (!ViewConfigurationCompat.hasPermanentMenuKey(ViewConfiguration.get(mContext)) ||
926                        mDecorContentParent.isOverflowMenuShowPending())) {
927
928            final Window.Callback cb = getWindowCallback();
929
930            if (!mDecorContentParent.isOverflowMenuShowing() || !toggleMenuMode) {
931                if (cb != null && !isDestroyed()) {
932                    // If we have a menu invalidation pending, do it now.
933                    if (mInvalidatePanelMenuPosted &&
934                            (mInvalidatePanelMenuFeatures & (1 << FEATURE_OPTIONS_PANEL)) != 0) {
935                        mWindowDecor.removeCallbacks(mInvalidatePanelMenuRunnable);
936                        mInvalidatePanelMenuRunnable.run();
937                    }
938
939                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
940
941                    // If we don't have a menu or we're waiting for a full content refresh,
942                    // forget it. This is a lingering event that no longer matters.
943                    if (st.menu != null && !st.refreshMenuContent &&
944                            cb.onPreparePanel(FEATURE_OPTIONS_PANEL, st.createdPanelView, st.menu)) {
945                        cb.onMenuOpened(FEATURE_ACTION_BAR, st.menu);
946                        mDecorContentParent.showOverflowMenu();
947                    }
948                }
949            } else {
950                mDecorContentParent.hideOverflowMenu();
951                if (!isDestroyed()) {
952                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
953                    cb.onPanelClosed(FEATURE_ACTION_BAR, st.menu);
954                }
955            }
956            return;
957        }
958
959        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
960
961        st.refreshDecorView = true;
962        closePanel(st, false);
963
964        openPanel(st, null);
965    }
966
967    private boolean initializePanelMenu(final PanelFeatureState st) {
968        Context context = mContext;
969
970        // If we have an action bar, initialize the menu with the right theme.
971        if ((st.featureId == FEATURE_OPTIONS_PANEL || st.featureId == FEATURE_ACTION_BAR) &&
972                mDecorContentParent != null) {
973            final TypedValue outValue = new TypedValue();
974            final Resources.Theme baseTheme = context.getTheme();
975            baseTheme.resolveAttribute(R.attr.actionBarTheme, outValue, true);
976
977            Resources.Theme widgetTheme = null;
978            if (outValue.resourceId != 0) {
979                widgetTheme = context.getResources().newTheme();
980                widgetTheme.setTo(baseTheme);
981                widgetTheme.applyStyle(outValue.resourceId, true);
982                widgetTheme.resolveAttribute(
983                        R.attr.actionBarWidgetTheme, outValue, true);
984            } else {
985                baseTheme.resolveAttribute(
986                        R.attr.actionBarWidgetTheme, outValue, true);
987            }
988
989            if (outValue.resourceId != 0) {
990                if (widgetTheme == null) {
991                    widgetTheme = context.getResources().newTheme();
992                    widgetTheme.setTo(baseTheme);
993                }
994                widgetTheme.applyStyle(outValue.resourceId, true);
995            }
996
997            if (widgetTheme != null) {
998                context = new ContextThemeWrapper(context, 0);
999                context.getTheme().setTo(widgetTheme);
1000            }
1001        }
1002
1003        final MenuBuilder menu = new MenuBuilder(context);
1004        menu.setCallback(this);
1005        st.setMenu(menu);
1006
1007        return true;
1008    }
1009
1010    private boolean initializePanelContent(PanelFeatureState st) {
1011        if (st.createdPanelView != null) {
1012            st.shownPanelView = st.createdPanelView;
1013            return true;
1014        }
1015
1016        if (st.menu == null) {
1017            return false;
1018        }
1019
1020        if (mPanelMenuPresenterCallback == null) {
1021            mPanelMenuPresenterCallback = new PanelMenuPresenterCallback();
1022        }
1023
1024        MenuView menuView = st.getListMenuView(mPanelMenuPresenterCallback);
1025
1026        st.shownPanelView = (View) menuView;
1027
1028        return st.shownPanelView != null;
1029    }
1030
1031    private boolean preparePanel(PanelFeatureState st, KeyEvent event) {
1032        if (isDestroyed()) {
1033            return false;
1034        }
1035
1036        // Already prepared (isPrepared will be reset to false later)
1037        if (st.isPrepared) {
1038            return true;
1039        }
1040
1041        if ((mPreparedPanel != null) && (mPreparedPanel != st)) {
1042            // Another Panel is prepared and possibly open, so close it
1043            closePanel(mPreparedPanel, false);
1044        }
1045
1046        final Window.Callback cb = getWindowCallback();
1047
1048        if (cb != null) {
1049            st.createdPanelView = cb.onCreatePanelView(st.featureId);
1050        }
1051
1052        final boolean isActionBarMenu =
1053                (st.featureId == FEATURE_OPTIONS_PANEL || st.featureId == FEATURE_ACTION_BAR);
1054
1055        if (isActionBarMenu && mDecorContentParent != null) {
1056            // Enforce ordering guarantees around events so that the action bar never
1057            // dispatches menu-related events before the panel is prepared.
1058            mDecorContentParent.setMenuPrepared();
1059        }
1060
1061        if (st.createdPanelView == null) {
1062            // Init the panel state's menu--return false if init failed
1063            if (st.menu == null || st.refreshMenuContent) {
1064                if (st.menu == null) {
1065                    if (!initializePanelMenu(st) || (st.menu == null)) {
1066                        return false;
1067                    }
1068                }
1069
1070                if (isActionBarMenu && mDecorContentParent != null) {
1071                    if (mActionMenuPresenterCallback == null) {
1072                        mActionMenuPresenterCallback = new ActionMenuPresenterCallback();
1073                    }
1074                    mDecorContentParent.setMenu(st.menu, mActionMenuPresenterCallback);
1075                }
1076
1077                // Creating the panel menu will involve a lot of manipulation;
1078                // don't dispatch change events to presenters until we're done.
1079                st.menu.stopDispatchingItemsChanged();
1080                if (!cb.onCreatePanelMenu(st.featureId, st.menu)) {
1081                    // Ditch the menu created above
1082                    st.setMenu(null);
1083
1084                    if (isActionBarMenu && mDecorContentParent != null) {
1085                        // Don't show it in the action bar either
1086                        mDecorContentParent.setMenu(null, mActionMenuPresenterCallback);
1087                    }
1088
1089                    return false;
1090                }
1091
1092                st.refreshMenuContent = false;
1093            }
1094
1095            // Preparing the panel menu can involve a lot of manipulation;
1096            // don't dispatch change events to presenters until we're done.
1097            st.menu.stopDispatchingItemsChanged();
1098
1099            // Restore action view state before we prepare. This gives apps
1100            // an opportunity to override frozen/restored state in onPrepare.
1101            if (st.frozenActionViewState != null) {
1102                st.menu.restoreActionViewStates(st.frozenActionViewState);
1103                st.frozenActionViewState = null;
1104            }
1105
1106            // Callback and return if the callback does not want to show the menu
1107            if (!cb.onPreparePanel(FEATURE_OPTIONS_PANEL, st.createdPanelView, st.menu)) {
1108                if (isActionBarMenu && mDecorContentParent != null) {
1109                    // The app didn't want to show the menu for now but it still exists.
1110                    // Clear it out of the action bar.
1111                    mDecorContentParent.setMenu(null, mActionMenuPresenterCallback);
1112                }
1113                st.menu.startDispatchingItemsChanged();
1114                return false;
1115            }
1116
1117            // Set the proper keymap
1118            KeyCharacterMap kmap = KeyCharacterMap.load(
1119                    event != null ? event.getDeviceId() : KeyCharacterMap.VIRTUAL_KEYBOARD);
1120            st.qwertyMode = kmap.getKeyboardType() != KeyCharacterMap.NUMERIC;
1121            st.menu.setQwertyMode(st.qwertyMode);
1122            st.menu.startDispatchingItemsChanged();
1123        }
1124
1125        // Set other state
1126        st.isPrepared = true;
1127        st.isHandled = false;
1128        mPreparedPanel = st;
1129
1130        return true;
1131    }
1132
1133    private void checkCloseActionMenu(MenuBuilder menu) {
1134        if (mClosingActionMenu) {
1135            return;
1136        }
1137
1138        mClosingActionMenu = true;
1139        mDecorContentParent.dismissPopups();
1140        Window.Callback cb = getWindowCallback();
1141        if (cb != null && !isDestroyed()) {
1142            cb.onPanelClosed(FEATURE_ACTION_BAR, menu);
1143        }
1144        mClosingActionMenu = false;
1145    }
1146
1147    private void closePanel(int featureId) {
1148        closePanel(getPanelState(featureId, true), true);
1149    }
1150
1151    private void closePanel(PanelFeatureState st, boolean doCallback) {
1152        if (doCallback && st.featureId == FEATURE_OPTIONS_PANEL &&
1153                mDecorContentParent != null && mDecorContentParent.isOverflowMenuShowing()) {
1154            checkCloseActionMenu(st.menu);
1155            return;
1156        }
1157
1158        final boolean wasOpen = st.isOpen;
1159
1160        final WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
1161        if (wm != null && wasOpen && st.decorView != null) {
1162            wm.removeView(st.decorView);
1163        }
1164
1165        st.isPrepared = false;
1166        st.isHandled = false;
1167        st.isOpen = false;
1168
1169        if (wasOpen && doCallback) {
1170            // If the panel was open and we should callback, do so. This should be done after
1171            // isOpen is updated to ensure that we do not get into an infinite recursion
1172            callOnPanelClosed(st.featureId, st, null);
1173        }
1174
1175        // This view is no longer shown, so null it out
1176        st.shownPanelView = null;
1177
1178        // Next time the menu opens, it should not be in expanded mode, so
1179        // force a refresh of the decor
1180        st.refreshDecorView = true;
1181
1182        if (mPreparedPanel == st) {
1183            mPreparedPanel = null;
1184        }
1185    }
1186
1187    private boolean onKeyDownPanel(int featureId, KeyEvent event) {
1188        if (event.getRepeatCount() == 0) {
1189            PanelFeatureState st = getPanelState(featureId, true);
1190            if (!st.isOpen) {
1191                return preparePanel(st, event);
1192            }
1193        }
1194
1195        return false;
1196    }
1197
1198    private void onKeyUpPanel(int featureId, KeyEvent event) {
1199        if (mActionMode != null) {
1200            return;
1201        }
1202
1203        boolean playSoundEffect = false;
1204        final PanelFeatureState st = getPanelState(featureId, true);
1205        if (featureId == FEATURE_OPTIONS_PANEL && mDecorContentParent != null &&
1206                mDecorContentParent.canShowOverflowMenu() &&
1207                !ViewConfigurationCompat.hasPermanentMenuKey(ViewConfiguration.get(mContext))) {
1208            if (!mDecorContentParent.isOverflowMenuShowing()) {
1209                if (!isDestroyed() && preparePanel(st, event)) {
1210                    playSoundEffect = mDecorContentParent.showOverflowMenu();
1211                }
1212            } else {
1213                playSoundEffect = mDecorContentParent.hideOverflowMenu();
1214            }
1215        } else {
1216            if (st.isOpen || st.isHandled) {
1217
1218                // Play the sound effect if the user closed an open menu (and not if
1219                // they just released a menu shortcut)
1220                playSoundEffect = st.isOpen;
1221
1222                // Close menu
1223                closePanel(st, true);
1224
1225            } else if (st.isPrepared) {
1226                boolean show = true;
1227                if (st.refreshMenuContent) {
1228                    // Something may have invalidated the menu since we prepared it.
1229                    // Re-prepare it to refresh.
1230                    st.isPrepared = false;
1231                    show = preparePanel(st, event);
1232                }
1233
1234                if (show) {
1235                    // Show menu
1236                    openPanel(st, event);
1237
1238                    playSoundEffect = true;
1239                }
1240            }
1241        }
1242
1243        if (playSoundEffect) {
1244            AudioManager audioManager = (AudioManager) mContext.getSystemService(
1245                    Context.AUDIO_SERVICE);
1246            if (audioManager != null) {
1247                audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK);
1248            } else {
1249                Log.w(TAG, "Couldn't get audio manager");
1250            }
1251        }
1252    }
1253
1254    private void callOnPanelClosed(int featureId, PanelFeatureState panel, Menu menu) {
1255        // Try to get a menu
1256        if (menu == null) {
1257            // Need a panel to grab the menu, so try to get that
1258            if (panel == null) {
1259                if ((featureId >= 0) && (featureId < mPanels.length)) {
1260                    panel = mPanels[featureId];
1261                }
1262            }
1263
1264            if (panel != null) {
1265                // menu still may be null, which is okay--we tried our best
1266                menu = panel.menu;
1267            }
1268        }
1269
1270        // If the panel is not open, do not callback
1271        if ((panel != null) && (!panel.isOpen))
1272            return;
1273
1274        Window.Callback cb = getWindowCallback();
1275        if (cb != null) {
1276            cb.onPanelClosed(featureId, menu);
1277        }
1278    }
1279
1280    private PanelFeatureState findMenuPanel(Menu menu) {
1281        final PanelFeatureState[] panels = mPanels;
1282        final int N = panels != null ? panels.length : 0;
1283        for (int i = 0; i < N; i++) {
1284            final PanelFeatureState panel = panels[i];
1285            if (panel != null && panel.menu == menu) {
1286                return panel;
1287            }
1288        }
1289        return null;
1290    }
1291
1292    private PanelFeatureState getPanelState(int featureId, boolean required) {
1293        PanelFeatureState[] ar;
1294        if ((ar = mPanels) == null || ar.length <= featureId) {
1295            PanelFeatureState[] nar = new PanelFeatureState[featureId + 1];
1296            if (ar != null) {
1297                System.arraycopy(ar, 0, nar, 0, ar.length);
1298            }
1299            mPanels = ar = nar;
1300        }
1301
1302        PanelFeatureState st = ar[featureId];
1303        if (st == null) {
1304            ar[featureId] = st = new PanelFeatureState(featureId);
1305        }
1306        return st;
1307    }
1308
1309    private boolean performPanelShortcut(PanelFeatureState st, int keyCode, KeyEvent event,
1310            int flags) {
1311        if (event.isSystem()) {
1312            return false;
1313        }
1314
1315        boolean handled = false;
1316
1317        // Only try to perform menu shortcuts if preparePanel returned true (possible false
1318        // return value from application not wanting to show the menu).
1319        if ((st.isPrepared || preparePanel(st, event)) && st.menu != null) {
1320            // The menu is prepared now, perform the shortcut on it
1321            handled = st.menu.performShortcut(keyCode, event, flags);
1322        }
1323
1324        if (handled) {
1325            // Only close down the menu if we don't have an action bar keeping it open.
1326            if ((flags & Menu.FLAG_PERFORM_NO_CLOSE) == 0 && mDecorContentParent == null) {
1327                closePanel(st, true);
1328            }
1329        }
1330
1331        return handled;
1332    }
1333
1334    private void invalidatePanelMenu(int featureId) {
1335        mInvalidatePanelMenuFeatures |= 1 << featureId;
1336
1337        if (!mInvalidatePanelMenuPosted && mWindowDecor != null) {
1338            ViewCompat.postOnAnimation(mWindowDecor, mInvalidatePanelMenuRunnable);
1339            mInvalidatePanelMenuPosted = true;
1340        }
1341    }
1342
1343    private void doInvalidatePanelMenu(int featureId) {
1344        PanelFeatureState st = getPanelState(featureId, true);
1345        Bundle savedActionViewStates = null;
1346        if (st.menu != null) {
1347            savedActionViewStates = new Bundle();
1348            st.menu.saveActionViewStates(savedActionViewStates);
1349            if (savedActionViewStates.size() > 0) {
1350                st.frozenActionViewState = savedActionViewStates;
1351            }
1352            // This will be started again when the panel is prepared.
1353            st.menu.stopDispatchingItemsChanged();
1354            st.menu.clear();
1355        }
1356        st.refreshMenuContent = true;
1357        st.refreshDecorView = true;
1358
1359        // Prepare the options panel if we have an action bar
1360        if ((featureId == FEATURE_ACTION_BAR || featureId == FEATURE_OPTIONS_PANEL)
1361                && mDecorContentParent != null) {
1362            st = getPanelState(Window.FEATURE_OPTIONS_PANEL, false);
1363            if (st != null) {
1364                st.isPrepared = false;
1365                preparePanel(st, null);
1366            }
1367        }
1368    }
1369
1370    /**
1371     * Updates the status bar guard
1372     *
1373     * @param insetTop the current top system window inset
1374     * @return the new top system window inset
1375     */
1376    private int updateStatusGuard(int insetTop) {
1377        boolean showStatusGuard = false;
1378        // Show the status guard when the non-overlay contextual action bar is showing
1379        if (mActionModeView != null) {
1380            if (mActionModeView.getLayoutParams() instanceof ViewGroup.MarginLayoutParams) {
1381                ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams)
1382                        mActionModeView.getLayoutParams();
1383                boolean mlpChanged = false;
1384
1385                if (mActionModeView.isShown()) {
1386                    if (mTempRect1 == null) {
1387                        mTempRect1 = new Rect();
1388                        mTempRect2 = new Rect();
1389                    }
1390                    final Rect insets = mTempRect1;
1391                    final Rect localInsets = mTempRect2;
1392                    insets.set(0, insetTop, 0, 0);
1393
1394                    ViewUtils.computeFitSystemWindows(mSubDecor, insets, localInsets);
1395                    final int newMargin = localInsets.top == 0 ? insetTop : 0;
1396                    if (mlp.topMargin != newMargin) {
1397                        mlpChanged = true;
1398                        mlp.topMargin = insetTop;
1399
1400                        if (mStatusGuard == null) {
1401                            mStatusGuard = new View(mContext);
1402                            mStatusGuard.setBackgroundColor(mContext.getResources()
1403                                    .getColor(R.color.abc_input_method_navigation_guard));
1404                            mSubDecor.addView(mStatusGuard, -1,
1405                                    new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
1406                                            insetTop));
1407                        } else {
1408                            ViewGroup.LayoutParams lp = mStatusGuard.getLayoutParams();
1409                            if (lp.height != insetTop) {
1410                                lp.height = insetTop;
1411                                mStatusGuard.setLayoutParams(lp);
1412                            }
1413                        }
1414                    }
1415
1416                    // The action mode's theme may differ from the app, so
1417                    // always show the status guard above it.
1418                    showStatusGuard = mStatusGuard != null;
1419
1420                    // We only need to consume the insets if the action
1421                    // mode is overlaid on the app content (e.g. it's
1422                    // sitting in a FrameLayout, see
1423                    // screen_simple_overlay_action_mode.xml).
1424                    if (!mOverlayActionMode && showStatusGuard) {
1425                        insetTop = 0;
1426                    }
1427                } else {
1428                    // reset top margin
1429                    if (mlp.topMargin != 0) {
1430                        mlpChanged = true;
1431                        mlp.topMargin = 0;
1432                    }
1433                }
1434                if (mlpChanged) {
1435                    mActionModeView.setLayoutParams(mlp);
1436                }
1437            }
1438        }
1439        if (mStatusGuard != null) {
1440            mStatusGuard.setVisibility(showStatusGuard ? View.VISIBLE : View.GONE);
1441        }
1442
1443        return insetTop;
1444    }
1445
1446    private void throwFeatureRequestIfSubDecorInstalled() {
1447        if (mSubDecorInstalled) {
1448            throw new AndroidRuntimeException(
1449                    "Window feature must be requested before adding content");
1450        }
1451    }
1452
1453    ViewGroup getSubDecor() {
1454        return mSubDecor;
1455    }
1456
1457    /**
1458     * Clears out internal reference when the action mode is destroyed.
1459     */
1460    private class ActionModeCallbackWrapper implements ActionMode.Callback {
1461        private ActionMode.Callback mWrapped;
1462
1463        public ActionModeCallbackWrapper(ActionMode.Callback wrapped) {
1464            mWrapped = wrapped;
1465        }
1466
1467        public boolean onCreateActionMode(ActionMode mode, Menu menu) {
1468            return mWrapped.onCreateActionMode(mode, menu);
1469        }
1470
1471        public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
1472            return mWrapped.onPrepareActionMode(mode, menu);
1473        }
1474
1475        public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
1476            return mWrapped.onActionItemClicked(mode, item);
1477        }
1478
1479        public void onDestroyActionMode(ActionMode mode) {
1480            mWrapped.onDestroyActionMode(mode);
1481            if (mActionModePopup != null) {
1482                mWindow.getDecorView().removeCallbacks(mShowActionModePopup);
1483                mActionModePopup.dismiss();
1484            } else if (mActionModeView != null) {
1485                mActionModeView.setVisibility(View.GONE);
1486                if (mActionModeView.getParent() != null) {
1487                    ViewCompat.requestApplyInsets((View) mActionModeView.getParent());
1488                }
1489            }
1490            if (mActionModeView != null) {
1491                mActionModeView.removeAllViews();
1492            }
1493            if (mAppCompatCallback != null) {
1494                mAppCompatCallback.onSupportActionModeFinished(mActionMode);
1495            }
1496            mActionMode = null;
1497        }
1498    }
1499
1500    private final class PanelMenuPresenterCallback implements MenuPresenter.Callback {
1501        @Override
1502        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
1503            final Menu parentMenu = menu.getRootMenu();
1504            final boolean isSubMenu = parentMenu != menu;
1505            final PanelFeatureState panel = findMenuPanel(isSubMenu ? parentMenu : menu);
1506            if (panel != null) {
1507                if (isSubMenu) {
1508                    callOnPanelClosed(panel.featureId, panel, parentMenu);
1509                    closePanel(panel, true);
1510                } else {
1511                    // Close the panel and only do the callback if the menu is being
1512                    // closed completely, not if opening a sub menu
1513                    closePanel(panel, allMenusAreClosing);
1514                }
1515            }
1516        }
1517
1518        @Override
1519        public boolean onOpenSubMenu(MenuBuilder subMenu) {
1520            if (subMenu == null && mHasActionBar) {
1521                Window.Callback cb = getWindowCallback();
1522                if (cb != null && !isDestroyed()) {
1523                    cb.onMenuOpened(FEATURE_ACTION_BAR, subMenu);
1524                }
1525            }
1526            return true;
1527        }
1528    }
1529
1530    private final class ActionMenuPresenterCallback implements MenuPresenter.Callback {
1531        @Override
1532        public boolean onOpenSubMenu(MenuBuilder subMenu) {
1533            Window.Callback cb = getWindowCallback();
1534            if (cb != null) {
1535                cb.onMenuOpened(FEATURE_ACTION_BAR, subMenu);
1536            }
1537            return true;
1538        }
1539
1540        @Override
1541        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
1542            checkCloseActionMenu(menu);
1543        }
1544    }
1545
1546    private static final class PanelFeatureState {
1547
1548        /** Feature ID for this panel. */
1549        int featureId;
1550
1551        int background;
1552
1553        int gravity;
1554
1555        int x;
1556
1557        int y;
1558
1559        int windowAnimations;
1560
1561        /** Dynamic state of the panel. */
1562        ViewGroup decorView;
1563
1564        /** The panel that we are actually showing. */
1565        View shownPanelView;
1566
1567        /** The panel that was returned by onCreatePanelView(). */
1568        View createdPanelView;
1569
1570        /** Use {@link #setMenu} to set this. */
1571        MenuBuilder menu;
1572
1573        ListMenuPresenter listMenuPresenter;
1574
1575        Context listPresenterContext;
1576
1577        /**
1578         * Whether the panel has been prepared (see
1579         * {@link #preparePanel}).
1580         */
1581        boolean isPrepared;
1582
1583        /**
1584         * Whether an item's action has been performed. This happens in obvious
1585         * scenarios (user clicks on menu item), but can also happen with
1586         * chording menu+(shortcut key).
1587         */
1588        boolean isHandled;
1589
1590        boolean isOpen;
1591
1592        public boolean qwertyMode;
1593
1594        boolean refreshDecorView;
1595
1596        boolean refreshMenuContent;
1597
1598        boolean wasLastOpen;
1599
1600        /**
1601         * Contains the state of the menu when told to freeze.
1602         */
1603        Bundle frozenMenuState;
1604
1605        /**
1606         * Contains the state of associated action views when told to freeze.
1607         * These are saved across invalidations.
1608         */
1609        Bundle frozenActionViewState;
1610
1611        PanelFeatureState(int featureId) {
1612            this.featureId = featureId;
1613
1614            refreshDecorView = false;
1615        }
1616
1617        public boolean hasPanelItems() {
1618            if (shownPanelView == null) return false;
1619            if (createdPanelView != null) return true;
1620
1621            return listMenuPresenter.getAdapter().getCount() > 0;
1622        }
1623
1624        /**
1625         * Unregister and free attached MenuPresenters. They will be recreated as needed.
1626         */
1627        public void clearMenuPresenters() {
1628            if (menu != null) {
1629                menu.removeMenuPresenter(listMenuPresenter);
1630            }
1631            listMenuPresenter = null;
1632        }
1633
1634        void setStyle(Context context) {
1635            final TypedValue outValue = new TypedValue();
1636            final Resources.Theme widgetTheme = context.getResources().newTheme();
1637            widgetTheme.setTo(context.getTheme());
1638
1639            // First apply the actionBarPopupTheme
1640            widgetTheme.resolveAttribute(R.attr.actionBarPopupTheme, outValue, true);
1641            if (outValue.resourceId != 0) {
1642                widgetTheme.applyStyle(outValue.resourceId, true);
1643            }
1644
1645            // Now apply the panelMenuListTheme
1646            widgetTheme.resolveAttribute(R.attr.panelMenuListTheme, outValue, true);
1647            if (outValue.resourceId != 0) {
1648                widgetTheme.applyStyle(outValue.resourceId, true);
1649            } else {
1650                widgetTheme.applyStyle(R.style.Theme_AppCompat_CompactMenu, true);
1651            }
1652
1653            context = new ContextThemeWrapper(context, 0);
1654            context.getTheme().setTo(widgetTheme);
1655
1656            listPresenterContext = context;
1657
1658            TypedArray a = context.obtainStyledAttributes(R.styleable.Theme);
1659            background = a.getResourceId(
1660                    R.styleable.Theme_panelBackground, 0);
1661            windowAnimations = a.getResourceId(
1662                    R.styleable.Theme_android_windowAnimationStyle, 0);
1663            a.recycle();
1664        }
1665
1666        void setMenu(MenuBuilder menu) {
1667            if (menu == this.menu) return;
1668
1669            if (this.menu != null) {
1670                this.menu.removeMenuPresenter(listMenuPresenter);
1671            }
1672            this.menu = menu;
1673            if (menu != null) {
1674                if (listMenuPresenter != null) menu.addMenuPresenter(listMenuPresenter);
1675            }
1676        }
1677
1678        MenuView getListMenuView(MenuPresenter.Callback cb) {
1679            if (menu == null) return null;
1680
1681            if (listMenuPresenter == null) {
1682                listMenuPresenter = new ListMenuPresenter(listPresenterContext,
1683                        R.layout.abc_list_menu_item_layout);
1684                listMenuPresenter.setCallback(cb);
1685                menu.addMenuPresenter(listMenuPresenter);
1686            }
1687
1688            MenuView result = listMenuPresenter.getMenuView(decorView);
1689
1690            return result;
1691        }
1692
1693        Parcelable onSaveInstanceState() {
1694            SavedState savedState = new SavedState();
1695            savedState.featureId = featureId;
1696            savedState.isOpen = isOpen;
1697
1698            if (menu != null) {
1699                savedState.menuState = new Bundle();
1700                menu.savePresenterStates(savedState.menuState);
1701            }
1702
1703            return savedState;
1704        }
1705
1706        void onRestoreInstanceState(Parcelable state) {
1707            SavedState savedState = (SavedState) state;
1708            featureId = savedState.featureId;
1709            wasLastOpen = savedState.isOpen;
1710            frozenMenuState = savedState.menuState;
1711
1712            shownPanelView = null;
1713            decorView = null;
1714        }
1715
1716        void applyFrozenState() {
1717            if (menu != null && frozenMenuState != null) {
1718                menu.restorePresenterStates(frozenMenuState);
1719                frozenMenuState = null;
1720            }
1721        }
1722
1723        private static class SavedState implements Parcelable {
1724            int featureId;
1725            boolean isOpen;
1726            Bundle menuState;
1727
1728            public int describeContents() {
1729                return 0;
1730            }
1731
1732            public void writeToParcel(Parcel dest, int flags) {
1733                dest.writeInt(featureId);
1734                dest.writeInt(isOpen ? 1 : 0);
1735
1736                if (isOpen) {
1737                    dest.writeBundle(menuState);
1738                }
1739            }
1740
1741            private static SavedState readFromParcel(Parcel source) {
1742                SavedState savedState = new SavedState();
1743                savedState.featureId = source.readInt();
1744                savedState.isOpen = source.readInt() == 1;
1745
1746                if (savedState.isOpen) {
1747                    savedState.menuState = source.readBundle();
1748                }
1749
1750                return savedState;
1751            }
1752
1753            public static final Parcelable.Creator<SavedState> CREATOR
1754                    = new Parcelable.Creator<SavedState>() {
1755                public SavedState createFromParcel(Parcel in) {
1756                    return readFromParcel(in);
1757                }
1758
1759                public SavedState[] newArray(int size) {
1760                    return new SavedState[size];
1761                }
1762            };
1763        }
1764    }
1765
1766    private class ListMenuDecorView extends FrameLayout {
1767        public ListMenuDecorView(Context context) {
1768            super(context);
1769        }
1770
1771        @Override
1772        public boolean dispatchKeyEvent(KeyEvent event) {
1773            return AppCompatDelegateImplV7.this.dispatchKeyEvent(event);
1774        }
1775
1776        @Override
1777        public boolean onInterceptTouchEvent(MotionEvent event) {
1778            int action = event.getAction();
1779            if (action == MotionEvent.ACTION_DOWN) {
1780                int x = (int) event.getX();
1781                int y = (int) event.getY();
1782                if (isOutOfBounds(x, y)) {
1783                    closePanel(Window.FEATURE_OPTIONS_PANEL);
1784                    return true;
1785                }
1786            }
1787            return super.onInterceptTouchEvent(event);
1788        }
1789
1790        @Override
1791        public void setBackgroundResource(int resid) {
1792            setBackgroundDrawable(TintManager.getDrawable(getContext(), resid));
1793        }
1794
1795        private boolean isOutOfBounds(int x, int y) {
1796            return x < -5 || y < -5 || x > (getWidth() + 5) || y > (getHeight() + 5);
1797        }
1798    }
1799
1800}
1801