AppCompatDelegateImplV7.java revision 1d0e76a0ba8bfc5e280203a56e10be95dd959a51 
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.AppCompatViewInflater;
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.ContentFrameLayout;
52import android.support.v7.internal.widget.DecorContentParent;
53import android.support.v7.internal.widget.FitWindowsViewGroup;
54import android.support.v7.internal.widget.TintManager;
55import android.support.v7.internal.widget.ViewStubCompat;
56import android.support.v7.internal.widget.ViewUtils;
57import android.support.v7.view.ActionMode;
58import android.support.v7.widget.Toolbar;
59import android.text.TextUtils;
60import android.util.AndroidRuntimeException;
61import android.util.AttributeSet;
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 AppCompatViewInflater mAppCompatViewInflater;
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 void initWindowDecorActionBar() {
171        ensureSubDecor();
172
173        if (!mHasActionBar || mActionBar != null) {
174            return;
175        }
176
177        if (mOriginalWindowCallback instanceof Activity) {
178            mActionBar = new WindowDecorActionBar((Activity) mOriginalWindowCallback,
179                    mOverlayActionBar);
180        } else if (mOriginalWindowCallback instanceof Dialog) {
181            mActionBar = new WindowDecorActionBar((Dialog) mOriginalWindowCallback);
182        }
183        if (mActionBar != null) {
184            mActionBar.setDefaultDisplayHomeAsUpEnabled(mEnableDefaultActionBarUp);
185        }
186    }
187
188    @Override
189    public void setSupportActionBar(Toolbar toolbar) {
190        if (!(mOriginalWindowCallback instanceof Activity)) {
191            // Only Activities support custom Action Bars
192            return;
193        }
194
195        final ActionBar ab = getSupportActionBar();
196        if (ab instanceof WindowDecorActionBar) {
197            throw new IllegalStateException("This Activity already has an action bar supplied " +
198                    "by the window decor. Do not request Window.FEATURE_ACTION_BAR and set " +
199                    "windowActionBar to false in your theme to use a Toolbar instead.");
200        }
201
202        ToolbarActionBar tbab = new ToolbarActionBar(toolbar, ((Activity) mContext).getTitle(),
203                mWindow);
204        setSupportActionBar(tbab);
205        mWindow.setCallback(tbab.getWrappedWindowCallback());
206        tbab.invalidateOptionsMenu();
207    }
208
209    @Override
210    public void onConfigurationChanged(Configuration newConfig) {
211        // If this is called before sub-decor is installed, ActionBar will not
212        // be properly initialized.
213        if (mHasActionBar && mSubDecorInstalled) {
214            // Note: The action bar will need to access
215            // view changes from superclass.
216            ActionBar ab = getSupportActionBar();
217            if (ab != null) {
218                ab.onConfigurationChanged(newConfig);
219            }
220        }
221    }
222
223    @Override
224    public void onStop() {
225        ActionBar ab = getSupportActionBar();
226        if (ab != null) {
227            ab.setShowHideAnimationEnabled(false);
228        }
229    }
230
231    @Override
232    public void onPostResume() {
233        ActionBar ab = getSupportActionBar();
234        if (ab != null) {
235            ab.setShowHideAnimationEnabled(true);
236        }
237    }
238
239    @Override
240    public void setContentView(View v) {
241        ensureSubDecor();
242        ViewGroup contentParent = (ViewGroup) mSubDecor.findViewById(android.R.id.content);
243        contentParent.removeAllViews();
244        contentParent.addView(v);
245        mOriginalWindowCallback.onContentChanged();
246    }
247
248    @Override
249    public void setContentView(int resId) {
250        ensureSubDecor();
251        ViewGroup contentParent = (ViewGroup) mSubDecor.findViewById(android.R.id.content);
252        contentParent.removeAllViews();
253        LayoutInflater.from(mContext).inflate(resId, contentParent);
254        mOriginalWindowCallback.onContentChanged();
255    }
256
257    @Override
258    public void setContentView(View v, ViewGroup.LayoutParams lp) {
259        ensureSubDecor();
260        ViewGroup contentParent = (ViewGroup) mSubDecor.findViewById(android.R.id.content);
261        contentParent.removeAllViews();
262        contentParent.addView(v, lp);
263        mOriginalWindowCallback.onContentChanged();
264    }
265
266    @Override
267    public void addContentView(View v, ViewGroup.LayoutParams lp) {
268        ensureSubDecor();
269        ViewGroup contentParent = (ViewGroup) mSubDecor.findViewById(android.R.id.content);
270        contentParent.addView(v, lp);
271        mOriginalWindowCallback.onContentChanged();
272    }
273
274    private void ensureSubDecor() {
275        if (!mSubDecorInstalled) {
276            final LayoutInflater inflater = LayoutInflater.from(mContext);
277
278            if (!mWindowNoTitle) {
279                if (mIsFloating) {
280                    // If we're floating, inflate the dialog title decor
281                    mSubDecor = (ViewGroup) inflater.inflate(
282                            R.layout.abc_dialog_title_material, null);
283
284                    // Floating windows can never have an action bar, reset the flags
285                    mHasActionBar = mOverlayActionBar = false;
286                } else if (mHasActionBar) {
287                    /**
288                     * This needs some explanation. As we can not use the android:theme attribute
289                     * pre-L, we emulate it by manually creating a LayoutInflater using a
290                     * ContextThemeWrapper pointing to actionBarTheme.
291                     */
292                    TypedValue outValue = new TypedValue();
293                    mContext.getTheme().resolveAttribute(R.attr.actionBarTheme, outValue, true);
294
295                    Context themedContext;
296                    if (outValue.resourceId != 0) {
297                        themedContext = new ContextThemeWrapper(mContext, outValue.resourceId);
298                    } else {
299                        themedContext = mContext;
300                    }
301
302                    // Now inflate the view using the themed context and set it as the content view
303                    mSubDecor = (ViewGroup) LayoutInflater.from(themedContext)
304                            .inflate(R.layout.abc_screen_toolbar, null);
305
306                    mDecorContentParent = (DecorContentParent) mSubDecor
307                            .findViewById(R.id.decor_content_parent);
308                    mDecorContentParent.setWindowCallback(getWindowCallback());
309
310                    /**
311                     * Propagate features to DecorContentParent
312                     */
313                    if (mOverlayActionBar) {
314                        mDecorContentParent.initFeature(FEATURE_ACTION_BAR_OVERLAY);
315                    }
316                    if (mFeatureProgress) {
317                        mDecorContentParent.initFeature(Window.FEATURE_PROGRESS);
318                    }
319                    if (mFeatureIndeterminateProgress) {
320                        mDecorContentParent.initFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
321                    }
322                }
323            } else {
324                if (mOverlayActionMode) {
325                    mSubDecor = (ViewGroup) inflater.inflate(
326                            R.layout.abc_screen_simple_overlay_action_mode, null);
327                } else {
328                    mSubDecor = (ViewGroup) inflater.inflate(R.layout.abc_screen_simple, null);
329                }
330
331                if (Build.VERSION.SDK_INT >= 21) {
332                    // If we're running on L or above, we can rely on ViewCompat's
333                    // setOnApplyWindowInsetsListener
334                    ViewCompat.setOnApplyWindowInsetsListener(mSubDecor,
335                            new OnApplyWindowInsetsListener() {
336                                @Override
337                                public WindowInsetsCompat onApplyWindowInsets(View v,
338                                        WindowInsetsCompat insets) {
339                                    final int top = insets.getSystemWindowInsetTop();
340                                    final int newTop = updateStatusGuard(top);
341
342                                    if (top != newTop) {
343                                        insets = insets.replaceSystemWindowInsets(
344                                                insets.getSystemWindowInsetLeft(),
345                                                newTop,
346                                                insets.getSystemWindowInsetRight(),
347                                                insets.getSystemWindowInsetBottom());
348                                    }
349
350                                    // Now apply the insets on our view
351                                    return ViewCompat.onApplyWindowInsets(v, insets);
352                                }
353                            });
354                } else {
355                    // Else, we need to use our own FitWindowsViewGroup handling
356                    ((FitWindowsViewGroup) mSubDecor).setOnFitSystemWindowsListener(
357                            new FitWindowsViewGroup.OnFitSystemWindowsListener() {
358                                @Override
359                                public void onFitSystemWindows(Rect insets) {
360                                    insets.top = updateStatusGuard(insets.top);
361                                }
362                            });
363                }
364            }
365
366            if (mSubDecor == null) {
367                throw new IllegalArgumentException(
368                        "AppCompat does not support the current theme features");
369            }
370
371            if (mDecorContentParent == null) {
372                mTitleView = (TextView) mSubDecor.findViewById(R.id.title);
373            }
374
375            // Make the decor optionally fit system windows, like the window's decor
376            ViewUtils.makeOptionalFitsSystemWindows(mSubDecor);
377
378            final ViewGroup decorContent = (ViewGroup) mWindow.findViewById(android.R.id.content);
379            final ContentFrameLayout abcContent = (ContentFrameLayout) mSubDecor.findViewById(
380                    R.id.action_bar_activity_content);
381
382            // There might be Views already added to the Window's content view so we need to
383            // migrate them to our content view
384            while (decorContent.getChildCount() > 0) {
385                final View child = decorContent.getChildAt(0);
386                decorContent.removeViewAt(0);
387                abcContent.addView(child);
388            }
389
390            // Now set the Window's content view with the decor
391            mWindow.setContentView(mSubDecor);
392
393            // Change our content FrameLayout to use the android.R.id.content id.
394            // Useful for fragments.
395            decorContent.setId(View.NO_ID);
396            abcContent.setId(android.R.id.content);
397
398            // The decorContent may have a foreground drawable set (windowContentOverlay).
399            // Remove this as we handle it ourselves
400            if (decorContent instanceof FrameLayout) {
401                ((FrameLayout) decorContent).setForeground(null);
402            }
403
404            // If a title was set before we installed the decor, propogate it now
405            CharSequence title = getTitle();
406            if (!TextUtils.isEmpty(title)) {
407                onTitleChanged(title);
408            }
409
410            applyFixedSizeWindow(abcContent);
411
412            onSubDecorInstalled(mSubDecor);
413
414            mSubDecorInstalled = true;
415
416            // Invalidate if the panel menu hasn't been created before this.
417            // Panel menu invalidation is deferred avoiding application onCreateOptionsMenu
418            // being called in the middle of onCreate or similar.
419            // A pending invalidation will typically be resolved before the posted message
420            // would run normally in order to satisfy instance state restoration.
421            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
422            if (!isDestroyed() && (st == null || st.menu == null)) {
423                invalidatePanelMenu(FEATURE_ACTION_BAR);
424            }
425        }
426    }
427
428    void onSubDecorInstalled(ViewGroup subDecor) {}
429
430    private void applyFixedSizeWindow(ContentFrameLayout contentFrameLayout) {
431        // This is a bit weird. In the framework, the window sizing attributes control
432        // the decor view's size, meaning that any padding is inset for the min/max widths below.
433        // We don't control measurement at that level, so we need to workaround it by making sure
434        // that the decor view's padding is taken into account.
435        contentFrameLayout.setDecorPadding(mWindowDecor.getPaddingLeft(),
436                mWindowDecor.getPaddingTop(), mWindowDecor.getPaddingRight(),
437                mWindowDecor.getPaddingBottom());
438
439
440        TypedArray a = mContext.obtainStyledAttributes(R.styleable.Theme);
441        a.getValue(R.styleable.Theme_windowMinWidthMajor, contentFrameLayout.getMinWidthMajor());
442        a.getValue(R.styleable.Theme_windowMinWidthMinor, contentFrameLayout.getMinWidthMinor());
443
444        if (a.hasValue(R.styleable.Theme_windowFixedWidthMajor)) {
445            a.getValue(R.styleable.Theme_windowFixedWidthMajor,
446                    contentFrameLayout.getFixedWidthMajor());
447        }
448        if (a.hasValue(R.styleable.Theme_windowFixedWidthMinor)) {
449            a.getValue(R.styleable.Theme_windowFixedWidthMinor,
450                    contentFrameLayout.getFixedWidthMinor());
451        }
452        if (a.hasValue(R.styleable.Theme_windowFixedHeightMajor)) {
453            a.getValue(R.styleable.Theme_windowFixedHeightMajor,
454                    contentFrameLayout.getFixedHeightMajor());
455        }
456        if (a.hasValue(R.styleable.Theme_windowFixedHeightMinor)) {
457            a.getValue(R.styleable.Theme_windowFixedHeightMinor,
458                    contentFrameLayout.getFixedHeightMinor());
459        }
460        a.recycle();
461
462        contentFrameLayout.requestLayout();
463    }
464
465    @Override
466    public boolean requestWindowFeature(int featureId) {
467        if (mWindowNoTitle && featureId == FEATURE_ACTION_BAR) {
468            return false; // Ignore. No title dominates.
469        }
470        if (mHasActionBar && featureId == Window.FEATURE_NO_TITLE) {
471            // Remove the action bar feature if we have no title. No title dominates.
472            mHasActionBar = false;
473        }
474
475        switch (featureId) {
476            case FEATURE_ACTION_BAR:
477                throwFeatureRequestIfSubDecorInstalled();
478                mHasActionBar = true;
479                return true;
480            case FEATURE_ACTION_BAR_OVERLAY:
481                throwFeatureRequestIfSubDecorInstalled();
482                mOverlayActionBar = true;
483                return true;
484            case FEATURE_ACTION_MODE_OVERLAY:
485                throwFeatureRequestIfSubDecorInstalled();
486                mOverlayActionMode = true;
487                return true;
488            case Window.FEATURE_PROGRESS:
489                throwFeatureRequestIfSubDecorInstalled();
490                mFeatureProgress = true;
491                return true;
492            case Window.FEATURE_INDETERMINATE_PROGRESS:
493                throwFeatureRequestIfSubDecorInstalled();
494                mFeatureIndeterminateProgress = true;
495                return true;
496            case Window.FEATURE_NO_TITLE:
497                throwFeatureRequestIfSubDecorInstalled();
498                mWindowNoTitle = true;
499                return true;
500        }
501
502        return mWindow.requestFeature(featureId);
503    }
504
505    @Override
506    public boolean hasWindowFeature(int featureId) {
507        switch (featureId) {
508            case FEATURE_ACTION_BAR:
509                return mHasActionBar;
510            case FEATURE_ACTION_BAR_OVERLAY:
511                return mOverlayActionBar;
512            case FEATURE_ACTION_MODE_OVERLAY:
513                return mOverlayActionMode;
514            case Window.FEATURE_PROGRESS:
515                return mFeatureProgress;
516            case Window.FEATURE_INDETERMINATE_PROGRESS:
517                return mFeatureIndeterminateProgress;
518            case Window.FEATURE_NO_TITLE:
519                return mWindowNoTitle;
520        }
521        return mWindow.hasFeature(featureId);
522    }
523
524    @Override
525    void onTitleChanged(CharSequence title) {
526        if (mDecorContentParent != null) {
527            mDecorContentParent.setWindowTitle(title);
528        } else if (peekSupportActionBar() != null) {
529            peekSupportActionBar().setWindowTitle(title);
530        } else if (mTitleView != null) {
531            mTitleView.setText(title);
532        }
533    }
534
535    @Override
536    boolean onPanelClosed(final int featureId, Menu menu) {
537        if (featureId == FEATURE_ACTION_BAR) {
538            ActionBar ab = getSupportActionBar();
539            if (ab != null) {
540                ab.dispatchMenuVisibilityChanged(false);
541            }
542            return true;
543        } else if (featureId == FEATURE_OPTIONS_PANEL) {
544            // Make sure that the options panel is closed. This is mainly used when we're using a
545            // ToolbarActionBar
546            PanelFeatureState st = getPanelState(featureId, true);
547            if (st.isOpen) {
548                closePanel(st, false);
549            }
550        }
551        return false;
552    }
553
554    @Override
555    boolean onMenuOpened(final int featureId, Menu menu) {
556        if (featureId == FEATURE_ACTION_BAR) {
557            ActionBar ab = getSupportActionBar();
558            if (ab != null) {
559                ab.dispatchMenuVisibilityChanged(true);
560            }
561            return true;
562        }
563        return false;
564    }
565
566    @Override
567    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
568        final Window.Callback cb = getWindowCallback();
569        if (cb != null && !isDestroyed()) {
570            final PanelFeatureState panel = findMenuPanel(menu.getRootMenu());
571            if (panel != null) {
572                return cb.onMenuItemSelected(panel.featureId, item);
573            }
574        }
575        return false;
576    }
577
578    @Override
579    public void onMenuModeChange(MenuBuilder menu) {
580        reopenMenu(menu, true);
581    }
582
583    @Override
584    public ActionMode startSupportActionMode(ActionMode.Callback callback) {
585        if (callback == null) {
586            throw new IllegalArgumentException("ActionMode callback can not be null.");
587        }
588
589        if (mActionMode != null) {
590            mActionMode.finish();
591        }
592
593        final ActionMode.Callback wrappedCallback = new ActionModeCallbackWrapperV7(callback);
594
595        ActionBar ab = getSupportActionBar();
596        if (ab != null) {
597            mActionMode = ab.startActionMode(wrappedCallback);
598            if (mActionMode != null && mAppCompatCallback != null) {
599                mAppCompatCallback.onSupportActionModeStarted(mActionMode);
600            }
601        }
602
603        if (mActionMode == null) {
604            // If the action bar didn't provide an action mode, start the emulated window one
605            mActionMode = startSupportActionModeFromWindow(wrappedCallback);
606        }
607
608        return mActionMode;
609    }
610
611    @Override
612    public void invalidateOptionsMenu() {
613        final ActionBar ab = getSupportActionBar();
614        if (ab != null && ab.invalidateOptionsMenu()) return;
615
616        invalidatePanelMenu(FEATURE_OPTIONS_PANEL);
617    }
618
619    @Override
620    ActionMode startSupportActionModeFromWindow(ActionMode.Callback callback) {
621        if (mActionMode != null) {
622            mActionMode.finish();
623        }
624
625        final ActionMode.Callback wrappedCallback = new ActionModeCallbackWrapperV7(callback);
626        ActionMode mode = null;
627        if (mAppCompatCallback != null && !isDestroyed()) {
628            try {
629                mode = mAppCompatCallback.onWindowStartingSupportActionMode(wrappedCallback);
630            } catch (AbstractMethodError ame) {
631                // Older apps might not implement this callback method.
632            }
633        }
634
635        if (mode != null) {
636            mActionMode = mode;
637        } else {
638            if (mActionModeView == null) {
639                if (mIsFloating) {
640                    // Use the action bar theme.
641                    final TypedValue outValue = new TypedValue();
642                    final Resources.Theme baseTheme = mContext.getTheme();
643                    baseTheme.resolveAttribute(R.attr.actionBarTheme, outValue, true);
644
645                    final Context actionBarContext;
646                    if (outValue.resourceId != 0) {
647                        final Resources.Theme actionBarTheme = mContext.getResources().newTheme();
648                        actionBarTheme.setTo(baseTheme);
649                        actionBarTheme.applyStyle(outValue.resourceId, true);
650
651                        actionBarContext = new ContextThemeWrapper(mContext, 0);
652                        actionBarContext.getTheme().setTo(actionBarTheme);
653                    } else {
654                        actionBarContext = mContext;
655                    }
656
657                    mActionModeView = new ActionBarContextView(actionBarContext);
658                    mActionModePopup = new PopupWindow(actionBarContext, null,
659                            R.attr.actionModePopupWindowStyle);
660                    mActionModePopup.setContentView(mActionModeView);
661                    mActionModePopup.setWidth(ViewGroup.LayoutParams.MATCH_PARENT);
662
663                    actionBarContext.getTheme().resolveAttribute(
664                            R.attr.actionBarSize, outValue, true);
665                    final int height = TypedValue.complexToDimensionPixelSize(outValue.data,
666                            actionBarContext.getResources().getDisplayMetrics());
667                    mActionModeView.setContentHeight(height);
668                    mActionModePopup.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
669                    mShowActionModePopup = new Runnable() {
670                        public void run() {
671                            mActionModePopup.showAtLocation(
672                                    mActionModeView,
673                                    Gravity.TOP | Gravity.FILL_HORIZONTAL, 0, 0);
674                        }
675                    };
676                } else {
677                    ViewStubCompat stub = (ViewStubCompat) mSubDecor
678                            .findViewById(R.id.action_mode_bar_stub);
679                    if (stub != null) {
680                        // Set the layout inflater so that it is inflated with the action bar's context
681                        stub.setLayoutInflater(LayoutInflater.from(getActionBarThemedContext()));
682                        mActionModeView = (ActionBarContextView) stub.inflate();
683                    }
684                }
685            }
686
687            if (mActionModeView != null) {
688                mActionModeView.killMode();
689                mode = new StandaloneActionMode(mActionModeView.getContext(), mActionModeView,
690                        wrappedCallback, mActionModePopup == null);
691                if (callback.onCreateActionMode(mode, mode.getMenu())) {
692                    mode.invalidate();
693                    mActionModeView.initForMode(mode);
694                    mActionModeView.setVisibility(View.VISIBLE);
695                    mActionMode = mode;
696                    if (mActionModePopup != null) {
697                        mWindow.getDecorView().post(mShowActionModePopup);
698                    }
699                    mActionModeView.sendAccessibilityEvent(
700                            AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
701
702                    if (mActionModeView.getParent() != null) {
703                        ViewCompat.requestApplyInsets((View) mActionModeView.getParent());
704                    }
705                } else {
706                    mActionMode = null;
707                }
708            }
709        }
710        if (mActionMode != null && mAppCompatCallback != null) {
711            mAppCompatCallback.onSupportActionModeStarted(mActionMode);
712        }
713        return mActionMode;
714    }
715
716    boolean onBackPressed() {
717        // Back cancels action modes first.
718        if (mActionMode != null) {
719            mActionMode.finish();
720            return true;
721        }
722
723        // Next collapse any expanded action views.
724        ActionBar ab = getSupportActionBar();
725        if (ab != null && ab.collapseActionView()) {
726            return true;
727        }
728
729        // Let the call through...
730        return false;
731    }
732
733    @Override
734    boolean onKeyShortcut(int keyCode, KeyEvent ev) {
735        // Let the Action Bar have a chance at handling the shortcut
736        ActionBar ab = getSupportActionBar();
737        if (ab != null && ab.onKeyShortcut(keyCode, ev)) {
738            return true;
739        }
740
741        // If the panel is already prepared, then perform the shortcut using it.
742        boolean handled;
743        if (mPreparedPanel != null) {
744            handled = performPanelShortcut(mPreparedPanel, ev.getKeyCode(), ev,
745                    Menu.FLAG_PERFORM_NO_CLOSE);
746            if (handled) {
747                if (mPreparedPanel != null) {
748                    mPreparedPanel.isHandled = true;
749                }
750                return true;
751            }
752        }
753
754        // If the panel is not prepared, then we may be trying to handle a shortcut key
755        // combination such as Control+C.  Temporarily prepare the panel then mark it
756        // unprepared again when finished to ensure that the panel will again be prepared
757        // the next time it is shown for real.
758        if (mPreparedPanel == null) {
759            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
760            preparePanel(st, ev);
761            handled = performPanelShortcut(st, ev.getKeyCode(), ev, Menu.FLAG_PERFORM_NO_CLOSE);
762            st.isPrepared = false;
763            if (handled) {
764                return true;
765            }
766        }
767        return false;
768    }
769
770    @Override
771    boolean dispatchKeyEvent(KeyEvent event) {
772        final int keyCode = event.getKeyCode();
773        final int action = event.getAction();
774        final boolean isDown = action == KeyEvent.ACTION_DOWN;
775
776        return isDown ? onKeyDown(keyCode, event) : onKeyUp(keyCode, event);
777    }
778
779    boolean onKeyUp(int keyCode, KeyEvent event) {
780        switch (keyCode) {
781            case KeyEvent.KEYCODE_MENU:
782                if (onKeyUpPanel(Window.FEATURE_OPTIONS_PANEL, event)) {
783                    return true;
784                }
785                break;
786            case KeyEvent.KEYCODE_BACK:
787                PanelFeatureState st = getPanelState(Window.FEATURE_OPTIONS_PANEL, false);
788                if (st != null && st.isOpen) {
789                    closePanel(st, true);
790                    return true;
791                }
792                if (onBackPressed()) {
793                    return true;
794                }
795                break;
796        }
797        return false;
798    }
799
800    boolean onKeyDown(int keyCode, KeyEvent event) {
801        switch (keyCode) {
802            case KeyEvent.KEYCODE_MENU:
803                if (onKeyDownPanel(Window.FEATURE_OPTIONS_PANEL, event)) {
804                    return true;
805                }
806                break;
807        }
808
809        // On API v7-10 we need to manually call onKeyShortcut() as this is not called
810        // from the Activity
811        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB) {
812            return onKeyShortcut(keyCode, event);
813        }
814        return false;
815    }
816
817    @Override
818    public View createView(View parent, final String name, @NonNull Context context,
819            @NonNull AttributeSet attrs) {
820        final boolean isPre21 = Build.VERSION.SDK_INT < 21;
821
822        if (mAppCompatViewInflater == null) {
823            mAppCompatViewInflater = new AppCompatViewInflater();
824        }
825
826        // We only want the View to inherit it's context if we're running pre-v21 and...
827        final boolean inheritContext = isPre21 && mSubDecorInstalled && parent != null
828                // We do not want to inherit context from any decor content
829                && parent.getId() != android.R.id.content
830                // We do not want to inherit context if this is the root view in the layout.
831                // We use parent.isAttachedToWindow() to determine this, which works because
832                // an inflated layout is only added to the hierarchy AFTER it is completely
833                // inflated. Thus isAttachedToWindow() will only return true if the parent
834                // has not been inflated within the outer inflation call.
835                && !ViewCompat.isAttachedToWindow(parent);
836
837        return mAppCompatViewInflater.createView(parent, name, context, attrs, inheritContext,
838                isPre21, /* Only read android:theme pre-L (L+ handles this anyway) */
839                true /* Read read app:theme as a fallback at all times for legacy reasons */
840        );
841    }
842
843    @Override
844    public void installViewFactory() {
845        LayoutInflater layoutInflater = LayoutInflater.from(mContext);
846        if (layoutInflater.getFactory() == null) {
847            LayoutInflaterCompat.setFactory(layoutInflater, this);
848        } else {
849            Log.i(TAG, "The Activity's LayoutInflater already has a Factory installed"
850                    + " so we can not install AppCompat's");
851        }
852    }
853
854    /**
855     * From {@link android.support.v4.view.LayoutInflaterFactory}
856     */
857    @Override
858    public final View onCreateView(View parent, String name,
859            Context context, AttributeSet attrs) {
860        // First let the Activity's Factory try and inflate the view
861        final View view = callActivityOnCreateView(parent, name, context, attrs);
862        if (view != null) {
863            return view;
864        }
865
866        // If the Factory didn't handle it, let our createView() method try
867        return createView(parent, name, context, attrs);
868    }
869
870    View callActivityOnCreateView(View parent, String name, Context context, AttributeSet attrs) {
871        // Let the Activity's LayoutInflater.Factory try and handle it
872        if (mOriginalWindowCallback instanceof LayoutInflater.Factory) {
873            final View result = ((LayoutInflater.Factory) mOriginalWindowCallback)
874                    .onCreateView(name, context, attrs);
875            if (result != null) {
876                return result;
877            }
878        }
879        return null;
880    }
881
882    private void openPanel(final PanelFeatureState st, KeyEvent event) {
883        // Already open, return
884        if (st.isOpen || isDestroyed()) {
885            return;
886        }
887
888        // Don't open an options panel for honeycomb apps on xlarge devices.
889        // (The app should be using an action bar for menu items.)
890        if (st.featureId == FEATURE_OPTIONS_PANEL) {
891            Context context = mContext;
892            Configuration config = context.getResources().getConfiguration();
893            boolean isXLarge = (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) ==
894                    Configuration.SCREENLAYOUT_SIZE_XLARGE;
895            boolean isHoneycombApp = context.getApplicationInfo().targetSdkVersion >=
896                    android.os.Build.VERSION_CODES.HONEYCOMB;
897
898            if (isXLarge && isHoneycombApp) {
899                return;
900            }
901        }
902
903        Window.Callback cb = getWindowCallback();
904        if ((cb != null) && (!cb.onMenuOpened(st.featureId, st.menu))) {
905            // Callback doesn't want the menu to open, reset any state
906            closePanel(st, true);
907            return;
908        }
909
910        final WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
911        if (wm == null) {
912            return;
913        }
914
915        // Prepare panel (should have been done before, but just in case)
916        if (!preparePanel(st, event)) {
917            return;
918        }
919
920        int width = WRAP_CONTENT;
921        if (st.decorView == null || st.refreshDecorView) {
922            if (st.decorView == null) {
923                // Initialize the panel decor, this will populate st.decorView
924                if (!initializePanelDecor(st) || (st.decorView == null))
925                    return;
926            } else if (st.refreshDecorView && (st.decorView.getChildCount() > 0)) {
927                // Decor needs refreshing, so remove its views
928                st.decorView.removeAllViews();
929            }
930
931            // This will populate st.shownPanelView
932            if (!initializePanelContent(st) || !st.hasPanelItems()) {
933                return;
934            }
935
936            ViewGroup.LayoutParams lp = st.shownPanelView.getLayoutParams();
937            if (lp == null) {
938                lp = new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
939            }
940
941            int backgroundResId = st.background;
942            st.decorView.setBackgroundResource(backgroundResId);
943
944            ViewParent shownPanelParent = st.shownPanelView.getParent();
945            if (shownPanelParent != null && shownPanelParent instanceof ViewGroup) {
946                ((ViewGroup) shownPanelParent).removeView(st.shownPanelView);
947            }
948            st.decorView.addView(st.shownPanelView, lp);
949
950            /*
951             * Give focus to the view, if it or one of its children does not
952             * already have it.
953             */
954            if (!st.shownPanelView.hasFocus()) {
955                st.shownPanelView.requestFocus();
956            }
957        } else if (st.createdPanelView != null) {
958            // If we already had a panel view, carry width=MATCH_PARENT through
959            // as we did above when it was created.
960            ViewGroup.LayoutParams lp = st.createdPanelView.getLayoutParams();
961            if (lp != null && lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
962                width = MATCH_PARENT;
963            }
964        }
965
966        st.isHandled = false;
967
968        WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
969                width, WRAP_CONTENT,
970                st.x, st.y, WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL,
971                WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM
972                        | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH,
973                PixelFormat.TRANSLUCENT);
974
975        lp.gravity = st.gravity;
976        lp.windowAnimations = st.windowAnimations;
977
978        wm.addView(st.decorView, lp);
979        st.isOpen = true;
980    }
981
982    private boolean initializePanelDecor(PanelFeatureState st) {
983        st.setStyle(getActionBarThemedContext());
984        st.decorView = new ListMenuDecorView(st.listPresenterContext);
985        st.gravity = Gravity.CENTER | Gravity.BOTTOM;
986        return true;
987    }
988
989    private void reopenMenu(MenuBuilder menu, boolean toggleMenuMode) {
990        if (mDecorContentParent != null && mDecorContentParent.canShowOverflowMenu() &&
991                (!ViewConfigurationCompat.hasPermanentMenuKey(ViewConfiguration.get(mContext)) ||
992                        mDecorContentParent.isOverflowMenuShowPending())) {
993
994            final Window.Callback cb = getWindowCallback();
995
996            if (!mDecorContentParent.isOverflowMenuShowing() || !toggleMenuMode) {
997                if (cb != null && !isDestroyed()) {
998                    // If we have a menu invalidation pending, do it now.
999                    if (mInvalidatePanelMenuPosted &&
1000                            (mInvalidatePanelMenuFeatures & (1 << FEATURE_OPTIONS_PANEL)) != 0) {
1001                        mWindowDecor.removeCallbacks(mInvalidatePanelMenuRunnable);
1002                        mInvalidatePanelMenuRunnable.run();
1003                    }
1004
1005                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
1006
1007                    // If we don't have a menu or we're waiting for a full content refresh,
1008                    // forget it. This is a lingering event that no longer matters.
1009                    if (st.menu != null && !st.refreshMenuContent &&
1010                            cb.onPreparePanel(FEATURE_OPTIONS_PANEL, st.createdPanelView, st.menu)) {
1011                        cb.onMenuOpened(FEATURE_ACTION_BAR, st.menu);
1012                        mDecorContentParent.showOverflowMenu();
1013                    }
1014                }
1015            } else {
1016                mDecorContentParent.hideOverflowMenu();
1017                if (!isDestroyed()) {
1018                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
1019                    cb.onPanelClosed(FEATURE_ACTION_BAR, st.menu);
1020                }
1021            }
1022            return;
1023        }
1024
1025        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
1026
1027        st.refreshDecorView = true;
1028        closePanel(st, false);
1029
1030        openPanel(st, null);
1031    }
1032
1033    private boolean initializePanelMenu(final PanelFeatureState st) {
1034        Context context = mContext;
1035
1036        // If we have an action bar, initialize the menu with the right theme.
1037        if ((st.featureId == FEATURE_OPTIONS_PANEL || st.featureId == FEATURE_ACTION_BAR) &&
1038                mDecorContentParent != null) {
1039            final TypedValue outValue = new TypedValue();
1040            final Resources.Theme baseTheme = context.getTheme();
1041            baseTheme.resolveAttribute(R.attr.actionBarTheme, outValue, true);
1042
1043            Resources.Theme widgetTheme = null;
1044            if (outValue.resourceId != 0) {
1045                widgetTheme = context.getResources().newTheme();
1046                widgetTheme.setTo(baseTheme);
1047                widgetTheme.applyStyle(outValue.resourceId, true);
1048                widgetTheme.resolveAttribute(
1049                        R.attr.actionBarWidgetTheme, outValue, true);
1050            } else {
1051                baseTheme.resolveAttribute(
1052                        R.attr.actionBarWidgetTheme, outValue, true);
1053            }
1054
1055            if (outValue.resourceId != 0) {
1056                if (widgetTheme == null) {
1057                    widgetTheme = context.getResources().newTheme();
1058                    widgetTheme.setTo(baseTheme);
1059                }
1060                widgetTheme.applyStyle(outValue.resourceId, true);
1061            }
1062
1063            if (widgetTheme != null) {
1064                context = new ContextThemeWrapper(context, 0);
1065                context.getTheme().setTo(widgetTheme);
1066            }
1067        }
1068
1069        final MenuBuilder menu = new MenuBuilder(context);
1070        menu.setCallback(this);
1071        st.setMenu(menu);
1072
1073        return true;
1074    }
1075
1076    private boolean initializePanelContent(PanelFeatureState st) {
1077        if (st.createdPanelView != null) {
1078            st.shownPanelView = st.createdPanelView;
1079            return true;
1080        }
1081
1082        if (st.menu == null) {
1083            return false;
1084        }
1085
1086        if (mPanelMenuPresenterCallback == null) {
1087            mPanelMenuPresenterCallback = new PanelMenuPresenterCallback();
1088        }
1089
1090        MenuView menuView = st.getListMenuView(mPanelMenuPresenterCallback);
1091
1092        st.shownPanelView = (View) menuView;
1093
1094        return st.shownPanelView != null;
1095    }
1096
1097    private boolean preparePanel(PanelFeatureState st, KeyEvent event) {
1098        if (isDestroyed()) {
1099            return false;
1100        }
1101
1102        // Already prepared (isPrepared will be reset to false later)
1103        if (st.isPrepared) {
1104            return true;
1105        }
1106
1107        if ((mPreparedPanel != null) && (mPreparedPanel != st)) {
1108            // Another Panel is prepared and possibly open, so close it
1109            closePanel(mPreparedPanel, false);
1110        }
1111
1112        final Window.Callback cb = getWindowCallback();
1113
1114        if (cb != null) {
1115            st.createdPanelView = cb.onCreatePanelView(st.featureId);
1116        }
1117
1118        final boolean isActionBarMenu =
1119                (st.featureId == FEATURE_OPTIONS_PANEL || st.featureId == FEATURE_ACTION_BAR);
1120
1121        if (isActionBarMenu && mDecorContentParent != null) {
1122            // Enforce ordering guarantees around events so that the action bar never
1123            // dispatches menu-related events before the panel is prepared.
1124            mDecorContentParent.setMenuPrepared();
1125        }
1126
1127        if (st.createdPanelView == null &&
1128                (!isActionBarMenu || !(peekSupportActionBar() instanceof ToolbarActionBar))) {
1129            // Since ToolbarActionBar handles the list options menu itself, we only want to
1130            // init this menu panel if we're not using a TAB.
1131            if (st.menu == null || st.refreshMenuContent) {
1132                if (st.menu == null) {
1133                    if (!initializePanelMenu(st) || (st.menu == null)) {
1134                        return false;
1135                    }
1136                }
1137
1138                if (isActionBarMenu && mDecorContentParent != null) {
1139                    if (mActionMenuPresenterCallback == null) {
1140                        mActionMenuPresenterCallback = new ActionMenuPresenterCallback();
1141                    }
1142                    mDecorContentParent.setMenu(st.menu, mActionMenuPresenterCallback);
1143                }
1144
1145                // Creating the panel menu will involve a lot of manipulation;
1146                // don't dispatch change events to presenters until we're done.
1147                st.menu.stopDispatchingItemsChanged();
1148                if (!cb.onCreatePanelMenu(st.featureId, st.menu)) {
1149                    // Ditch the menu created above
1150                    st.setMenu(null);
1151
1152                    if (isActionBarMenu && mDecorContentParent != null) {
1153                        // Don't show it in the action bar either
1154                        mDecorContentParent.setMenu(null, mActionMenuPresenterCallback);
1155                    }
1156
1157                    return false;
1158                }
1159
1160                st.refreshMenuContent = false;
1161            }
1162
1163            // Preparing the panel menu can involve a lot of manipulation;
1164            // don't dispatch change events to presenters until we're done.
1165            st.menu.stopDispatchingItemsChanged();
1166
1167            // Restore action view state before we prepare. This gives apps
1168            // an opportunity to override frozen/restored state in onPrepare.
1169            if (st.frozenActionViewState != null) {
1170                st.menu.restoreActionViewStates(st.frozenActionViewState);
1171                st.frozenActionViewState = null;
1172            }
1173
1174            // Callback and return if the callback does not want to show the menu
1175            if (!cb.onPreparePanel(FEATURE_OPTIONS_PANEL, st.createdPanelView, st.menu)) {
1176                if (isActionBarMenu && mDecorContentParent != null) {
1177                    // The app didn't want to show the menu for now but it still exists.
1178                    // Clear it out of the action bar.
1179                    mDecorContentParent.setMenu(null, mActionMenuPresenterCallback);
1180                }
1181                st.menu.startDispatchingItemsChanged();
1182                return false;
1183            }
1184
1185            // Set the proper keymap
1186            KeyCharacterMap kmap = KeyCharacterMap.load(
1187                    event != null ? event.getDeviceId() : KeyCharacterMap.VIRTUAL_KEYBOARD);
1188            st.qwertyMode = kmap.getKeyboardType() != KeyCharacterMap.NUMERIC;
1189            st.menu.setQwertyMode(st.qwertyMode);
1190            st.menu.startDispatchingItemsChanged();
1191        }
1192
1193        // Set other state
1194        st.isPrepared = true;
1195        st.isHandled = false;
1196        mPreparedPanel = st;
1197
1198        return true;
1199    }
1200
1201    private void checkCloseActionMenu(MenuBuilder menu) {
1202        if (mClosingActionMenu) {
1203            return;
1204        }
1205
1206        mClosingActionMenu = true;
1207        mDecorContentParent.dismissPopups();
1208        Window.Callback cb = getWindowCallback();
1209        if (cb != null && !isDestroyed()) {
1210            cb.onPanelClosed(FEATURE_ACTION_BAR, menu);
1211        }
1212        mClosingActionMenu = false;
1213    }
1214
1215    private void closePanel(int featureId) {
1216        closePanel(getPanelState(featureId, true), true);
1217    }
1218
1219    private void closePanel(PanelFeatureState st, boolean doCallback) {
1220        if (doCallback && st.featureId == FEATURE_OPTIONS_PANEL &&
1221                mDecorContentParent != null && mDecorContentParent.isOverflowMenuShowing()) {
1222            checkCloseActionMenu(st.menu);
1223            return;
1224        }
1225
1226        final boolean wasOpen = st.isOpen;
1227
1228        final WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
1229        if (wm != null && wasOpen && st.decorView != null) {
1230            wm.removeView(st.decorView);
1231        }
1232
1233        st.isPrepared = false;
1234        st.isHandled = false;
1235        st.isOpen = false;
1236
1237        if (wasOpen && doCallback) {
1238            // If the panel was open and we should callback, do so. This should be done after
1239            // isOpen is updated to ensure that we do not get into an infinite recursion
1240            callOnPanelClosed(st.featureId, st, null);
1241        }
1242
1243        // This view is no longer shown, so null it out
1244        st.shownPanelView = null;
1245
1246        // Next time the menu opens, it should not be in expanded mode, so
1247        // force a refresh of the decor
1248        st.refreshDecorView = true;
1249
1250        if (mPreparedPanel == st) {
1251            mPreparedPanel = null;
1252        }
1253    }
1254
1255    private boolean onKeyDownPanel(int featureId, KeyEvent event) {
1256        if (event.getRepeatCount() == 0) {
1257            PanelFeatureState st = getPanelState(featureId, true);
1258            if (!st.isOpen) {
1259                return preparePanel(st, event);
1260            }
1261        }
1262
1263        return false;
1264    }
1265
1266    private boolean onKeyUpPanel(int featureId, KeyEvent event) {
1267        if (mActionMode != null) {
1268            return false;
1269        }
1270
1271        boolean handled = false;
1272        final PanelFeatureState st = getPanelState(featureId, true);
1273        if (featureId == FEATURE_OPTIONS_PANEL && mDecorContentParent != null &&
1274                mDecorContentParent.canShowOverflowMenu() &&
1275                !ViewConfigurationCompat.hasPermanentMenuKey(ViewConfiguration.get(mContext))) {
1276            if (!mDecorContentParent.isOverflowMenuShowing()) {
1277                if (!isDestroyed() && preparePanel(st, event)) {
1278                    handled = mDecorContentParent.showOverflowMenu();
1279                }
1280            } else {
1281                handled = mDecorContentParent.hideOverflowMenu();
1282            }
1283        } else {
1284            if (st.isOpen || st.isHandled) {
1285                // Play the sound effect if the user closed an open menu (and not if
1286                // they just released a menu shortcut)
1287                handled = st.isOpen;
1288                // Close menu
1289                closePanel(st, true);
1290            } else if (st.isPrepared) {
1291                boolean show = true;
1292                if (st.refreshMenuContent) {
1293                    // Something may have invalidated the menu since we prepared it.
1294                    // Re-prepare it to refresh.
1295                    st.isPrepared = false;
1296                    show = preparePanel(st, event);
1297                }
1298
1299                if (show) {
1300                    // Show menu
1301                    openPanel(st, event);
1302                    handled = true;
1303                }
1304            }
1305        }
1306
1307        if (handled) {
1308            AudioManager audioManager = (AudioManager) mContext.getSystemService(
1309                    Context.AUDIO_SERVICE);
1310            if (audioManager != null) {
1311                audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK);
1312            } else {
1313                Log.w(TAG, "Couldn't get audio manager");
1314            }
1315        }
1316        return handled;
1317    }
1318
1319    private void callOnPanelClosed(int featureId, PanelFeatureState panel, Menu menu) {
1320        // Try to get a menu
1321        if (menu == null) {
1322            // Need a panel to grab the menu, so try to get that
1323            if (panel == null) {
1324                if ((featureId >= 0) && (featureId < mPanels.length)) {
1325                    panel = mPanels[featureId];
1326                }
1327            }
1328
1329            if (panel != null) {
1330                // menu still may be null, which is okay--we tried our best
1331                menu = panel.menu;
1332            }
1333        }
1334
1335        // If the panel is not open, do not callback
1336        if ((panel != null) && (!panel.isOpen))
1337            return;
1338
1339        Window.Callback cb = getWindowCallback();
1340        if (cb != null) {
1341            cb.onPanelClosed(featureId, menu);
1342        }
1343    }
1344
1345    private PanelFeatureState findMenuPanel(Menu menu) {
1346        final PanelFeatureState[] panels = mPanels;
1347        final int N = panels != null ? panels.length : 0;
1348        for (int i = 0; i < N; i++) {
1349            final PanelFeatureState panel = panels[i];
1350            if (panel != null && panel.menu == menu) {
1351                return panel;
1352            }
1353        }
1354        return null;
1355    }
1356
1357    private PanelFeatureState getPanelState(int featureId, boolean required) {
1358        PanelFeatureState[] ar;
1359        if ((ar = mPanels) == null || ar.length <= featureId) {
1360            PanelFeatureState[] nar = new PanelFeatureState[featureId + 1];
1361            if (ar != null) {
1362                System.arraycopy(ar, 0, nar, 0, ar.length);
1363            }
1364            mPanels = ar = nar;
1365        }
1366
1367        PanelFeatureState st = ar[featureId];
1368        if (st == null) {
1369            ar[featureId] = st = new PanelFeatureState(featureId);
1370        }
1371        return st;
1372    }
1373
1374    private boolean performPanelShortcut(PanelFeatureState st, int keyCode, KeyEvent event,
1375            int flags) {
1376        if (event.isSystem()) {
1377            return false;
1378        }
1379
1380        boolean handled = false;
1381
1382        // Only try to perform menu shortcuts if preparePanel returned true (possible false
1383        // return value from application not wanting to show the menu).
1384        if ((st.isPrepared || preparePanel(st, event)) && st.menu != null) {
1385            // The menu is prepared now, perform the shortcut on it
1386            handled = st.menu.performShortcut(keyCode, event, flags);
1387        }
1388
1389        if (handled) {
1390            // Only close down the menu if we don't have an action bar keeping it open.
1391            if ((flags & Menu.FLAG_PERFORM_NO_CLOSE) == 0 && mDecorContentParent == null) {
1392                closePanel(st, true);
1393            }
1394        }
1395
1396        return handled;
1397    }
1398
1399    private void invalidatePanelMenu(int featureId) {
1400        mInvalidatePanelMenuFeatures |= 1 << featureId;
1401
1402        if (!mInvalidatePanelMenuPosted && mWindowDecor != null) {
1403            ViewCompat.postOnAnimation(mWindowDecor, mInvalidatePanelMenuRunnable);
1404            mInvalidatePanelMenuPosted = true;
1405        }
1406    }
1407
1408    private void doInvalidatePanelMenu(int featureId) {
1409        PanelFeatureState st = getPanelState(featureId, true);
1410        Bundle savedActionViewStates = null;
1411        if (st.menu != null) {
1412            savedActionViewStates = new Bundle();
1413            st.menu.saveActionViewStates(savedActionViewStates);
1414            if (savedActionViewStates.size() > 0) {
1415                st.frozenActionViewState = savedActionViewStates;
1416            }
1417            // This will be started again when the panel is prepared.
1418            st.menu.stopDispatchingItemsChanged();
1419            st.menu.clear();
1420        }
1421        st.refreshMenuContent = true;
1422        st.refreshDecorView = true;
1423
1424        // Prepare the options panel if we have an action bar
1425        if ((featureId == FEATURE_ACTION_BAR || featureId == FEATURE_OPTIONS_PANEL)
1426                && mDecorContentParent != null) {
1427            st = getPanelState(Window.FEATURE_OPTIONS_PANEL, false);
1428            if (st != null) {
1429                st.isPrepared = false;
1430                preparePanel(st, null);
1431            }
1432        }
1433    }
1434
1435    /**
1436     * Updates the status bar guard
1437     *
1438     * @param insetTop the current top system window inset
1439     * @return the new top system window inset
1440     */
1441    private int updateStatusGuard(int insetTop) {
1442        boolean showStatusGuard = false;
1443        // Show the status guard when the non-overlay contextual action bar is showing
1444        if (mActionModeView != null) {
1445            if (mActionModeView.getLayoutParams() instanceof ViewGroup.MarginLayoutParams) {
1446                ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams)
1447                        mActionModeView.getLayoutParams();
1448                boolean mlpChanged = false;
1449
1450                if (mActionModeView.isShown()) {
1451                    if (mTempRect1 == null) {
1452                        mTempRect1 = new Rect();
1453                        mTempRect2 = new Rect();
1454                    }
1455                    final Rect insets = mTempRect1;
1456                    final Rect localInsets = mTempRect2;
1457                    insets.set(0, insetTop, 0, 0);
1458
1459                    ViewUtils.computeFitSystemWindows(mSubDecor, insets, localInsets);
1460                    final int newMargin = localInsets.top == 0 ? insetTop : 0;
1461                    if (mlp.topMargin != newMargin) {
1462                        mlpChanged = true;
1463                        mlp.topMargin = insetTop;
1464
1465                        if (mStatusGuard == null) {
1466                            mStatusGuard = new View(mContext);
1467                            mStatusGuard.setBackgroundColor(mContext.getResources()
1468                                    .getColor(R.color.abc_input_method_navigation_guard));
1469                            mSubDecor.addView(mStatusGuard, -1,
1470                                    new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
1471                                            insetTop));
1472                        } else {
1473                            ViewGroup.LayoutParams lp = mStatusGuard.getLayoutParams();
1474                            if (lp.height != insetTop) {
1475                                lp.height = insetTop;
1476                                mStatusGuard.setLayoutParams(lp);
1477                            }
1478                        }
1479                    }
1480
1481                    // The action mode's theme may differ from the app, so
1482                    // always show the status guard above it.
1483                    showStatusGuard = mStatusGuard != null;
1484
1485                    // We only need to consume the insets if the action
1486                    // mode is overlaid on the app content (e.g. it's
1487                    // sitting in a FrameLayout, see
1488                    // screen_simple_overlay_action_mode.xml).
1489                    if (!mOverlayActionMode && showStatusGuard) {
1490                        insetTop = 0;
1491                    }
1492                } else {
1493                    // reset top margin
1494                    if (mlp.topMargin != 0) {
1495                        mlpChanged = true;
1496                        mlp.topMargin = 0;
1497                    }
1498                }
1499                if (mlpChanged) {
1500                    mActionModeView.setLayoutParams(mlp);
1501                }
1502            }
1503        }
1504        if (mStatusGuard != null) {
1505            mStatusGuard.setVisibility(showStatusGuard ? View.VISIBLE : View.GONE);
1506        }
1507
1508        return insetTop;
1509    }
1510
1511    private void throwFeatureRequestIfSubDecorInstalled() {
1512        if (mSubDecorInstalled) {
1513            throw new AndroidRuntimeException(
1514                    "Window feature must be requested before adding content");
1515        }
1516    }
1517
1518    ViewGroup getSubDecor() {
1519        return mSubDecor;
1520    }
1521
1522    /**
1523     * Clears out internal reference when the action mode is destroyed.
1524     */
1525    class ActionModeCallbackWrapperV7 implements ActionMode.Callback {
1526        private ActionMode.Callback mWrapped;
1527
1528        public ActionModeCallbackWrapperV7(ActionMode.Callback wrapped) {
1529            mWrapped = wrapped;
1530        }
1531
1532        public boolean onCreateActionMode(ActionMode mode, Menu menu) {
1533            return mWrapped.onCreateActionMode(mode, menu);
1534        }
1535
1536        public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
1537            return mWrapped.onPrepareActionMode(mode, menu);
1538        }
1539
1540        public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
1541            return mWrapped.onActionItemClicked(mode, item);
1542        }
1543
1544        public void onDestroyActionMode(ActionMode mode) {
1545            mWrapped.onDestroyActionMode(mode);
1546            if (mActionModePopup != null) {
1547                mWindow.getDecorView().removeCallbacks(mShowActionModePopup);
1548                mActionModePopup.dismiss();
1549            } else if (mActionModeView != null) {
1550                mActionModeView.setVisibility(View.GONE);
1551                if (mActionModeView.getParent() != null) {
1552                    ViewCompat.requestApplyInsets((View) mActionModeView.getParent());
1553                }
1554            }
1555            if (mActionModeView != null) {
1556                mActionModeView.removeAllViews();
1557            }
1558            if (mAppCompatCallback != null) {
1559                mAppCompatCallback.onSupportActionModeFinished(mActionMode);
1560            }
1561            mActionMode = null;
1562        }
1563    }
1564
1565    private final class PanelMenuPresenterCallback implements MenuPresenter.Callback {
1566        @Override
1567        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
1568            final Menu parentMenu = menu.getRootMenu();
1569            final boolean isSubMenu = parentMenu != menu;
1570            final PanelFeatureState panel = findMenuPanel(isSubMenu ? parentMenu : menu);
1571            if (panel != null) {
1572                if (isSubMenu) {
1573                    callOnPanelClosed(panel.featureId, panel, parentMenu);
1574                    closePanel(panel, true);
1575                } else {
1576                    // Close the panel and only do the callback if the menu is being
1577                    // closed completely, not if opening a sub menu
1578                    closePanel(panel, allMenusAreClosing);
1579                }
1580            }
1581        }
1582
1583        @Override
1584        public boolean onOpenSubMenu(MenuBuilder subMenu) {
1585            if (subMenu == null && mHasActionBar) {
1586                Window.Callback cb = getWindowCallback();
1587                if (cb != null && !isDestroyed()) {
1588                    cb.onMenuOpened(FEATURE_ACTION_BAR, subMenu);
1589                }
1590            }
1591            return true;
1592        }
1593    }
1594
1595    private final class ActionMenuPresenterCallback implements MenuPresenter.Callback {
1596        @Override
1597        public boolean onOpenSubMenu(MenuBuilder subMenu) {
1598            Window.Callback cb = getWindowCallback();
1599            if (cb != null) {
1600                cb.onMenuOpened(FEATURE_ACTION_BAR, subMenu);
1601            }
1602            return true;
1603        }
1604
1605        @Override
1606        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
1607            checkCloseActionMenu(menu);
1608        }
1609    }
1610
1611    private static final class PanelFeatureState {
1612
1613        /** Feature ID for this panel. */
1614        int featureId;
1615
1616        int background;
1617
1618        int gravity;
1619
1620        int x;
1621
1622        int y;
1623
1624        int windowAnimations;
1625
1626        /** Dynamic state of the panel. */
1627        ViewGroup decorView;
1628
1629        /** The panel that we are actually showing. */
1630        View shownPanelView;
1631
1632        /** The panel that was returned by onCreatePanelView(). */
1633        View createdPanelView;
1634
1635        /** Use {@link #setMenu} to set this. */
1636        MenuBuilder menu;
1637
1638        ListMenuPresenter listMenuPresenter;
1639
1640        Context listPresenterContext;
1641
1642        /**
1643         * Whether the panel has been prepared (see
1644         * {@link #preparePanel}).
1645         */
1646        boolean isPrepared;
1647
1648        /**
1649         * Whether an item's action has been performed. This happens in obvious
1650         * scenarios (user clicks on menu item), but can also happen with
1651         * chording menu+(shortcut key).
1652         */
1653        boolean isHandled;
1654
1655        boolean isOpen;
1656
1657        public boolean qwertyMode;
1658
1659        boolean refreshDecorView;
1660
1661        boolean refreshMenuContent;
1662
1663        boolean wasLastOpen;
1664
1665        /**
1666         * Contains the state of the menu when told to freeze.
1667         */
1668        Bundle frozenMenuState;
1669
1670        /**
1671         * Contains the state of associated action views when told to freeze.
1672         * These are saved across invalidations.
1673         */
1674        Bundle frozenActionViewState;
1675
1676        PanelFeatureState(int featureId) {
1677            this.featureId = featureId;
1678
1679            refreshDecorView = false;
1680        }
1681
1682        public boolean hasPanelItems() {
1683            if (shownPanelView == null) return false;
1684            if (createdPanelView != null) return true;
1685
1686            return listMenuPresenter.getAdapter().getCount() > 0;
1687        }
1688
1689        /**
1690         * Unregister and free attached MenuPresenters. They will be recreated as needed.
1691         */
1692        public void clearMenuPresenters() {
1693            if (menu != null) {
1694                menu.removeMenuPresenter(listMenuPresenter);
1695            }
1696            listMenuPresenter = null;
1697        }
1698
1699        void setStyle(Context context) {
1700            final TypedValue outValue = new TypedValue();
1701            final Resources.Theme widgetTheme = context.getResources().newTheme();
1702            widgetTheme.setTo(context.getTheme());
1703
1704            // First apply the actionBarPopupTheme
1705            widgetTheme.resolveAttribute(R.attr.actionBarPopupTheme, outValue, true);
1706            if (outValue.resourceId != 0) {
1707                widgetTheme.applyStyle(outValue.resourceId, true);
1708            }
1709
1710            // Now apply the panelMenuListTheme
1711            widgetTheme.resolveAttribute(R.attr.panelMenuListTheme, outValue, true);
1712            if (outValue.resourceId != 0) {
1713                widgetTheme.applyStyle(outValue.resourceId, true);
1714            } else {
1715                widgetTheme.applyStyle(R.style.Theme_AppCompat_CompactMenu, true);
1716            }
1717
1718            context = new ContextThemeWrapper(context, 0);
1719            context.getTheme().setTo(widgetTheme);
1720
1721            listPresenterContext = context;
1722
1723            TypedArray a = context.obtainStyledAttributes(R.styleable.Theme);
1724            background = a.getResourceId(
1725                    R.styleable.Theme_panelBackground, 0);
1726            windowAnimations = a.getResourceId(
1727                    R.styleable.Theme_android_windowAnimationStyle, 0);
1728            a.recycle();
1729        }
1730
1731        void setMenu(MenuBuilder menu) {
1732            if (menu == this.menu) return;
1733
1734            if (this.menu != null) {
1735                this.menu.removeMenuPresenter(listMenuPresenter);
1736            }
1737            this.menu = menu;
1738            if (menu != null) {
1739                if (listMenuPresenter != null) menu.addMenuPresenter(listMenuPresenter);
1740            }
1741        }
1742
1743        MenuView getListMenuView(MenuPresenter.Callback cb) {
1744            if (menu == null) return null;
1745
1746            if (listMenuPresenter == null) {
1747                listMenuPresenter = new ListMenuPresenter(listPresenterContext,
1748                        R.layout.abc_list_menu_item_layout);
1749                listMenuPresenter.setCallback(cb);
1750                menu.addMenuPresenter(listMenuPresenter);
1751            }
1752
1753            MenuView result = listMenuPresenter.getMenuView(decorView);
1754
1755            return result;
1756        }
1757
1758        Parcelable onSaveInstanceState() {
1759            SavedState savedState = new SavedState();
1760            savedState.featureId = featureId;
1761            savedState.isOpen = isOpen;
1762
1763            if (menu != null) {
1764                savedState.menuState = new Bundle();
1765                menu.savePresenterStates(savedState.menuState);
1766            }
1767
1768            return savedState;
1769        }
1770
1771        void onRestoreInstanceState(Parcelable state) {
1772            SavedState savedState = (SavedState) state;
1773            featureId = savedState.featureId;
1774            wasLastOpen = savedState.isOpen;
1775            frozenMenuState = savedState.menuState;
1776
1777            shownPanelView = null;
1778            decorView = null;
1779        }
1780
1781        void applyFrozenState() {
1782            if (menu != null && frozenMenuState != null) {
1783                menu.restorePresenterStates(frozenMenuState);
1784                frozenMenuState = null;
1785            }
1786        }
1787
1788        private static class SavedState implements Parcelable {
1789            int featureId;
1790            boolean isOpen;
1791            Bundle menuState;
1792
1793            public int describeContents() {
1794                return 0;
1795            }
1796
1797            public void writeToParcel(Parcel dest, int flags) {
1798                dest.writeInt(featureId);
1799                dest.writeInt(isOpen ? 1 : 0);
1800
1801                if (isOpen) {
1802                    dest.writeBundle(menuState);
1803                }
1804            }
1805
1806            private static SavedState readFromParcel(Parcel source) {
1807                SavedState savedState = new SavedState();
1808                savedState.featureId = source.readInt();
1809                savedState.isOpen = source.readInt() == 1;
1810
1811                if (savedState.isOpen) {
1812                    savedState.menuState = source.readBundle();
1813                }
1814
1815                return savedState;
1816            }
1817
1818            public static final Parcelable.Creator<SavedState> CREATOR
1819                    = new Parcelable.Creator<SavedState>() {
1820                public SavedState createFromParcel(Parcel in) {
1821                    return readFromParcel(in);
1822                }
1823
1824                public SavedState[] newArray(int size) {
1825                    return new SavedState[size];
1826                }
1827            };
1828        }
1829    }
1830
1831    private class ListMenuDecorView extends FrameLayout {
1832        public ListMenuDecorView(Context context) {
1833            super(context);
1834        }
1835
1836        @Override
1837        public boolean dispatchKeyEvent(KeyEvent event) {
1838            return AppCompatDelegateImplV7.this.dispatchKeyEvent(event)
1839                    || super.dispatchKeyEvent(event);
1840        }
1841
1842        @Override
1843        public boolean onInterceptTouchEvent(MotionEvent event) {
1844            int action = event.getAction();
1845            if (action == MotionEvent.ACTION_DOWN) {
1846                int x = (int) event.getX();
1847                int y = (int) event.getY();
1848                if (isOutOfBounds(x, y)) {
1849                    closePanel(Window.FEATURE_OPTIONS_PANEL);
1850                    return true;
1851                }
1852            }
1853            return super.onInterceptTouchEvent(event);
1854        }
1855
1856        @Override
1857        public void setBackgroundResource(int resid) {
1858            setBackgroundDrawable(TintManager.getDrawable(getContext(), resid));
1859        }
1860
1861        private boolean isOutOfBounds(int x, int y) {
1862            return x < -5 || y < -5 || x > (getWidth() + 5) || y > (getHeight() + 5);
1863        }
1864    }
1865
1866}
1867