AppCompatDelegateImplV7.java revision 913fa29fdd3a0c593a46f2c2d2d23b66810024f5 
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.os.ParcelableCompat;
35import android.support.v4.os.ParcelableCompatCreatorCallbacks;
36import android.support.v4.view.LayoutInflaterCompat;
37import android.support.v4.view.LayoutInflaterFactory;
38import android.support.v4.view.OnApplyWindowInsetsListener;
39import android.support.v4.view.ViewCompat;
40import android.support.v4.view.ViewConfigurationCompat;
41import android.support.v4.view.ViewPropertyAnimatorCompat;
42import android.support.v4.view.ViewPropertyAnimatorListenerAdapter;
43import android.support.v4.view.WindowCompat;
44import android.support.v4.view.WindowInsetsCompat;
45import android.support.v4.widget.PopupWindowCompat;
46import android.support.v7.appcompat.R;
47import android.support.v7.view.ActionMode;
48import android.support.v7.view.ContextThemeWrapper;
49import android.support.v7.view.StandaloneActionMode;
50import android.support.v7.view.menu.ListMenuPresenter;
51import android.support.v7.view.menu.MenuBuilder;
52import android.support.v7.view.menu.MenuPresenter;
53import android.support.v7.view.menu.MenuView;
54import android.support.v7.widget.ActionBarContextView;
55import android.support.v7.widget.AppCompatDrawableManager;
56import android.support.v7.widget.ContentFrameLayout;
57import android.support.v7.widget.DecorContentParent;
58import android.support.v7.widget.FitWindowsViewGroup;
59import android.support.v7.widget.Toolbar;
60import android.support.v7.widget.ViewStubCompat;
61import android.support.v7.widget.ViewUtils;
62import android.text.TextUtils;
63import android.util.AndroidRuntimeException;
64import android.util.AttributeSet;
65import android.util.Log;
66import android.util.TypedValue;
67import android.view.Gravity;
68import android.view.KeyCharacterMap;
69import android.view.KeyEvent;
70import android.view.LayoutInflater;
71import android.view.Menu;
72import android.view.MenuItem;
73import android.view.MotionEvent;
74import android.view.View;
75import android.view.ViewConfiguration;
76import android.view.ViewGroup;
77import android.view.ViewParent;
78import android.view.Window;
79import android.view.WindowManager;
80import android.view.accessibility.AccessibilityEvent;
81import android.widget.FrameLayout;
82import android.widget.PopupWindow;
83import android.widget.TextView;
84
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    ViewPropertyAnimatorCompat mFadeAnim = null;
101
102    // true if we have installed a window sub-decor layout.
103    private boolean mSubDecorInstalled;
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 mLongPressBackDown;
118
119    private boolean mInvalidatePanelMenuPosted;
120    private int mInvalidatePanelMenuFeatures;
121    private final Runnable mInvalidatePanelMenuRunnable = new Runnable() {
122        @Override
123        public void run() {
124            if ((mInvalidatePanelMenuFeatures & 1 << FEATURE_OPTIONS_PANEL) != 0) {
125                doInvalidatePanelMenu(FEATURE_OPTIONS_PANEL);
126            }
127            if ((mInvalidatePanelMenuFeatures & 1 << FEATURE_SUPPORT_ACTION_BAR) != 0) {
128                doInvalidatePanelMenu(FEATURE_SUPPORT_ACTION_BAR);
129            }
130            mInvalidatePanelMenuPosted = false;
131            mInvalidatePanelMenuFeatures = 0;
132        }
133    };
134
135    private boolean mEnableDefaultActionBarUp;
136
137    private Rect mTempRect1;
138    private Rect mTempRect2;
139
140    private AppCompatViewInflater mAppCompatViewInflater;
141
142    AppCompatDelegateImplV7(Context context, Window window, AppCompatCallback callback) {
143        super(context, window, callback);
144    }
145
146    @Override
147    public void onCreate(Bundle savedInstanceState) {
148        if (mOriginalWindowCallback instanceof Activity) {
149            if (NavUtils.getParentActivityName((Activity) mOriginalWindowCallback) != null) {
150                // Peek at the Action Bar and update it if it already exists
151                ActionBar ab = peekSupportActionBar();
152                if (ab == null) {
153                    mEnableDefaultActionBarUp = true;
154                } else {
155                    ab.setDefaultDisplayHomeAsUpEnabled(true);
156                }
157            }
158        }
159    }
160
161    @Override
162    public void onPostCreate(Bundle savedInstanceState) {
163        // Make sure that the sub decor is installed
164        ensureSubDecor();
165    }
166
167    @Override
168    public void initWindowDecorActionBar() {
169        ensureSubDecor();
170
171        if (!mHasActionBar || mActionBar != null) {
172            return;
173        }
174
175        if (mOriginalWindowCallback instanceof Activity) {
176            mActionBar = new WindowDecorActionBar((Activity) mOriginalWindowCallback,
177                    mOverlayActionBar);
178        } else if (mOriginalWindowCallback instanceof Dialog) {
179            mActionBar = new WindowDecorActionBar((Dialog) mOriginalWindowCallback);
180        }
181        if (mActionBar != null) {
182            mActionBar.setDefaultDisplayHomeAsUpEnabled(mEnableDefaultActionBarUp);
183        }
184    }
185
186    @Override
187    public void setSupportActionBar(Toolbar toolbar) {
188        if (!(mOriginalWindowCallback instanceof Activity)) {
189            // Only Activities support custom Action Bars
190            return;
191        }
192
193        final ActionBar ab = getSupportActionBar();
194        if (ab instanceof WindowDecorActionBar) {
195            throw new IllegalStateException("This Activity already has an action bar supplied " +
196                    "by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set " +
197                    "windowActionBar to false in your theme to use a Toolbar instead.");
198        }
199
200        // If we reach here then we're setting a new action bar
201        // First clear out the MenuInflater to make sure that it is valid for the new Action Bar
202        mMenuInflater = null;
203
204        // If we have an action bar currently, destroy it
205        if (ab != null) {
206            ab.onDestroy();
207        }
208
209        if (toolbar != null) {
210            final ToolbarActionBar tbab = new ToolbarActionBar(toolbar,
211                    ((Activity) mContext).getTitle(), mAppCompatWindowCallback);
212            mActionBar = tbab;
213            mWindow.setCallback(tbab.getWrappedWindowCallback());
214        } else {
215            mActionBar = null;
216            // Re-set the original window callback since we may have already set a Toolbar wrapper
217            mWindow.setCallback(mAppCompatWindowCallback);
218        }
219
220        invalidateOptionsMenu();
221    }
222
223    @Override
224    public void onConfigurationChanged(Configuration newConfig) {
225        // If this is called before sub-decor is installed, ActionBar will not
226        // be properly initialized.
227        if (mHasActionBar && mSubDecorInstalled) {
228            // Note: The action bar will need to access
229            // view changes from superclass.
230            ActionBar ab = getSupportActionBar();
231            if (ab != null) {
232                ab.onConfigurationChanged(newConfig);
233            }
234        }
235    }
236
237    @Override
238    public void onStop() {
239        ActionBar ab = getSupportActionBar();
240        if (ab != null) {
241            ab.setShowHideAnimationEnabled(false);
242        }
243    }
244
245    @Override
246    public void onPostResume() {
247        ActionBar ab = getSupportActionBar();
248        if (ab != null) {
249            ab.setShowHideAnimationEnabled(true);
250        }
251    }
252
253    @Override
254    public void setContentView(View v) {
255        ensureSubDecor();
256        ViewGroup contentParent = (ViewGroup) mSubDecor.findViewById(android.R.id.content);
257        contentParent.removeAllViews();
258        contentParent.addView(v);
259        mOriginalWindowCallback.onContentChanged();
260    }
261
262    @Override
263    public void setContentView(int resId) {
264        ensureSubDecor();
265        ViewGroup contentParent = (ViewGroup) mSubDecor.findViewById(android.R.id.content);
266        contentParent.removeAllViews();
267        LayoutInflater.from(mContext).inflate(resId, contentParent);
268        mOriginalWindowCallback.onContentChanged();
269    }
270
271    @Override
272    public void setContentView(View v, ViewGroup.LayoutParams lp) {
273        ensureSubDecor();
274        ViewGroup contentParent = (ViewGroup) mSubDecor.findViewById(android.R.id.content);
275        contentParent.removeAllViews();
276        contentParent.addView(v, lp);
277        mOriginalWindowCallback.onContentChanged();
278    }
279
280    @Override
281    public void addContentView(View v, ViewGroup.LayoutParams lp) {
282        ensureSubDecor();
283        ViewGroup contentParent = (ViewGroup) mSubDecor.findViewById(android.R.id.content);
284        contentParent.addView(v, lp);
285        mOriginalWindowCallback.onContentChanged();
286    }
287
288    @Override
289    public void onDestroy() {
290        super.onDestroy();
291
292        if (mActionBar != null) {
293            mActionBar.onDestroy();
294            mActionBar = null;
295        }
296    }
297
298    private void ensureSubDecor() {
299        if (!mSubDecorInstalled) {
300            mSubDecor = createSubDecor();
301
302            // If a title was set before we installed the decor, propogate it now
303            CharSequence title = getTitle();
304            if (!TextUtils.isEmpty(title)) {
305                onTitleChanged(title);
306            }
307
308            applyFixedSizeWindow();
309
310            onSubDecorInstalled(mSubDecor);
311
312            mSubDecorInstalled = true;
313
314            // Invalidate if the panel menu hasn't been created before this.
315            // Panel menu invalidation is deferred avoiding application onCreateOptionsMenu
316            // being called in the middle of onCreate or similar.
317            // A pending invalidation will typically be resolved before the posted message
318            // would run normally in order to satisfy instance state restoration.
319            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
320            if (!isDestroyed() && (st == null || st.menu == null)) {
321                invalidatePanelMenu(FEATURE_SUPPORT_ACTION_BAR);
322            }
323        }
324    }
325
326    private ViewGroup createSubDecor() {
327        TypedArray a = mContext.obtainStyledAttributes(R.styleable.AppCompatTheme);
328
329        if (!a.hasValue(R.styleable.AppCompatTheme_windowActionBar)) {
330            a.recycle();
331            throw new IllegalStateException(
332                    "You need to use a Theme.AppCompat theme (or descendant) with this activity.");
333        }
334
335        if (a.getBoolean(R.styleable.AppCompatTheme_windowNoTitle, false)) {
336            requestWindowFeature(Window.FEATURE_NO_TITLE);
337        } else if (a.getBoolean(R.styleable.AppCompatTheme_windowActionBar, false)) {
338            // Don't allow an action bar if there is no title.
339            requestWindowFeature(FEATURE_SUPPORT_ACTION_BAR);
340        }
341        if (a.getBoolean(R.styleable.AppCompatTheme_windowActionBarOverlay, false)) {
342            requestWindowFeature(FEATURE_SUPPORT_ACTION_BAR_OVERLAY);
343        }
344        if (a.getBoolean(R.styleable.AppCompatTheme_windowActionModeOverlay, false)) {
345            requestWindowFeature(FEATURE_ACTION_MODE_OVERLAY);
346        }
347        mIsFloating = a.getBoolean(R.styleable.AppCompatTheme_android_windowIsFloating, false);
348        a.recycle();
349
350        final LayoutInflater inflater = LayoutInflater.from(mContext);
351        ViewGroup subDecor = null;
352
353
354        if (!mWindowNoTitle) {
355            if (mIsFloating) {
356                // If we're floating, inflate the dialog title decor
357                subDecor = (ViewGroup) inflater.inflate(
358                        R.layout.abc_dialog_title_material, null);
359
360                // Floating windows can never have an action bar, reset the flags
361                mHasActionBar = mOverlayActionBar = false;
362            } else if (mHasActionBar) {
363                /**
364                 * This needs some explanation. As we can not use the android:theme attribute
365                 * pre-L, we emulate it by manually creating a LayoutInflater using a
366                 * ContextThemeWrapper pointing to actionBarTheme.
367                 */
368                TypedValue outValue = new TypedValue();
369                mContext.getTheme().resolveAttribute(R.attr.actionBarTheme, outValue, true);
370
371                Context themedContext;
372                if (outValue.resourceId != 0) {
373                    themedContext = new ContextThemeWrapper(mContext, outValue.resourceId);
374                } else {
375                    themedContext = mContext;
376                }
377
378                // Now inflate the view using the themed context and set it as the content view
379                subDecor = (ViewGroup) LayoutInflater.from(themedContext)
380                        .inflate(R.layout.abc_screen_toolbar, null);
381
382                mDecorContentParent = (DecorContentParent) subDecor
383                        .findViewById(R.id.decor_content_parent);
384                mDecorContentParent.setWindowCallback(getWindowCallback());
385
386                /**
387                 * Propagate features to DecorContentParent
388                 */
389                if (mOverlayActionBar) {
390                    mDecorContentParent.initFeature(FEATURE_SUPPORT_ACTION_BAR_OVERLAY);
391                }
392                if (mFeatureProgress) {
393                    mDecorContentParent.initFeature(Window.FEATURE_PROGRESS);
394                }
395                if (mFeatureIndeterminateProgress) {
396                    mDecorContentParent.initFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
397                }
398            }
399        } else {
400            if (mOverlayActionMode) {
401                subDecor = (ViewGroup) inflater.inflate(
402                        R.layout.abc_screen_simple_overlay_action_mode, null);
403            } else {
404                subDecor = (ViewGroup) inflater.inflate(R.layout.abc_screen_simple, null);
405            }
406
407            if (Build.VERSION.SDK_INT >= 21) {
408                // If we're running on L or above, we can rely on ViewCompat's
409                // setOnApplyWindowInsetsListener
410                ViewCompat.setOnApplyWindowInsetsListener(subDecor,
411                        new OnApplyWindowInsetsListener() {
412                            @Override
413                            public WindowInsetsCompat onApplyWindowInsets(View v,
414                                    WindowInsetsCompat insets) {
415                                final int top = insets.getSystemWindowInsetTop();
416                                final int newTop = updateStatusGuard(top);
417
418                                if (top != newTop) {
419                                    insets = insets.replaceSystemWindowInsets(
420                                            insets.getSystemWindowInsetLeft(),
421                                            newTop,
422                                            insets.getSystemWindowInsetRight(),
423                                            insets.getSystemWindowInsetBottom());
424                                }
425
426                                // Now apply the insets on our view
427                                return ViewCompat.onApplyWindowInsets(v, insets);
428                            }
429                        });
430            } else {
431                // Else, we need to use our own FitWindowsViewGroup handling
432                ((FitWindowsViewGroup) subDecor).setOnFitSystemWindowsListener(
433                        new FitWindowsViewGroup.OnFitSystemWindowsListener() {
434                            @Override
435                            public void onFitSystemWindows(Rect insets) {
436                                insets.top = updateStatusGuard(insets.top);
437                            }
438                        });
439            }
440        }
441
442        if (subDecor == null) {
443            throw new IllegalArgumentException(
444                    "AppCompat does not support the current theme features: { "
445                            + "windowActionBar: " + mHasActionBar
446                            + ", windowActionBarOverlay: "+ mOverlayActionBar
447                            + ", android:windowIsFloating: " + mIsFloating
448                            + ", windowActionModeOverlay: " + mOverlayActionMode
449                            + ", windowNoTitle: " + mWindowNoTitle
450                            + " }");
451        }
452
453        if (mDecorContentParent == null) {
454            mTitleView = (TextView) subDecor.findViewById(R.id.title);
455        }
456
457        // Make the decor optionally fit system windows, like the window's decor
458        ViewUtils.makeOptionalFitsSystemWindows(subDecor);
459
460        final ViewGroup decorContent = (ViewGroup) mWindow.findViewById(android.R.id.content);
461        final ContentFrameLayout abcContent = (ContentFrameLayout) subDecor.findViewById(
462                R.id.action_bar_activity_content);
463
464        // There might be Views already added to the Window's content view so we need to
465        // migrate them to our content view
466        while (decorContent.getChildCount() > 0) {
467            final View child = decorContent.getChildAt(0);
468            decorContent.removeViewAt(0);
469            abcContent.addView(child);
470        }
471
472        // Now set the Window's content view with the decor
473        mWindow.setContentView(subDecor);
474
475        // Change our content FrameLayout to use the android.R.id.content id.
476        // Useful for fragments.
477        decorContent.setId(View.NO_ID);
478        abcContent.setId(android.R.id.content);
479
480        // The decorContent may have a foreground drawable set (windowContentOverlay).
481        // Remove this as we handle it ourselves
482        if (decorContent instanceof FrameLayout) {
483            ((FrameLayout) decorContent).setForeground(null);
484        }
485
486        abcContent.setAttachListener(new ContentFrameLayout.OnAttachListener() {
487            @Override
488            public void onAttachedFromWindow() {}
489
490            @Override
491            public void onDetachedFromWindow() {
492                dismissPopups();
493            }
494        });
495
496        return subDecor;
497    }
498
499    void onSubDecorInstalled(ViewGroup subDecor) {}
500
501    private void applyFixedSizeWindow() {
502        ContentFrameLayout cfl = (ContentFrameLayout) mSubDecor.findViewById(android.R.id.content);
503
504        // This is a bit weird. In the framework, the window sizing attributes control
505        // the decor view's size, meaning that any padding is inset for the min/max widths below.
506        // We don't control measurement at that level, so we need to workaround it by making sure
507        // that the decor view's padding is taken into account.
508        final View windowDecor = mWindow.getDecorView();
509        cfl.setDecorPadding(windowDecor.getPaddingLeft(),
510                windowDecor.getPaddingTop(), windowDecor.getPaddingRight(),
511                windowDecor.getPaddingBottom());
512
513        TypedArray a = mContext.obtainStyledAttributes(R.styleable.AppCompatTheme);
514        a.getValue(R.styleable.AppCompatTheme_windowMinWidthMajor, cfl.getMinWidthMajor());
515        a.getValue(R.styleable.AppCompatTheme_windowMinWidthMinor, cfl.getMinWidthMinor());
516
517        if (a.hasValue(R.styleable.AppCompatTheme_windowFixedWidthMajor)) {
518            a.getValue(R.styleable.AppCompatTheme_windowFixedWidthMajor,
519                    cfl.getFixedWidthMajor());
520        }
521        if (a.hasValue(R.styleable.AppCompatTheme_windowFixedWidthMinor)) {
522            a.getValue(R.styleable.AppCompatTheme_windowFixedWidthMinor,
523                    cfl.getFixedWidthMinor());
524        }
525        if (a.hasValue(R.styleable.AppCompatTheme_windowFixedHeightMajor)) {
526            a.getValue(R.styleable.AppCompatTheme_windowFixedHeightMajor,
527                    cfl.getFixedHeightMajor());
528        }
529        if (a.hasValue(R.styleable.AppCompatTheme_windowFixedHeightMinor)) {
530            a.getValue(R.styleable.AppCompatTheme_windowFixedHeightMinor,
531                    cfl.getFixedHeightMinor());
532        }
533        a.recycle();
534
535        cfl.requestLayout();
536    }
537
538    @Override
539    public boolean requestWindowFeature(int featureId) {
540        featureId = sanitizeWindowFeatureId(featureId);
541
542        if (mWindowNoTitle && featureId == FEATURE_SUPPORT_ACTION_BAR) {
543            return false; // Ignore. No title dominates.
544        }
545        if (mHasActionBar && featureId == Window.FEATURE_NO_TITLE) {
546            // Remove the action bar feature if we have no title. No title dominates.
547            mHasActionBar = false;
548        }
549
550        switch (featureId) {
551            case FEATURE_SUPPORT_ACTION_BAR:
552                throwFeatureRequestIfSubDecorInstalled();
553                mHasActionBar = true;
554                return true;
555            case FEATURE_SUPPORT_ACTION_BAR_OVERLAY:
556                throwFeatureRequestIfSubDecorInstalled();
557                mOverlayActionBar = true;
558                return true;
559            case FEATURE_ACTION_MODE_OVERLAY:
560                throwFeatureRequestIfSubDecorInstalled();
561                mOverlayActionMode = true;
562                return true;
563            case Window.FEATURE_PROGRESS:
564                throwFeatureRequestIfSubDecorInstalled();
565                mFeatureProgress = true;
566                return true;
567            case Window.FEATURE_INDETERMINATE_PROGRESS:
568                throwFeatureRequestIfSubDecorInstalled();
569                mFeatureIndeterminateProgress = true;
570                return true;
571            case Window.FEATURE_NO_TITLE:
572                throwFeatureRequestIfSubDecorInstalled();
573                mWindowNoTitle = true;
574                return true;
575        }
576
577        return mWindow.requestFeature(featureId);
578    }
579
580    @Override
581    public boolean hasWindowFeature(int featureId) {
582        featureId = sanitizeWindowFeatureId(featureId);
583        switch (featureId) {
584            case FEATURE_SUPPORT_ACTION_BAR:
585                return mHasActionBar;
586            case FEATURE_SUPPORT_ACTION_BAR_OVERLAY:
587                return mOverlayActionBar;
588            case FEATURE_ACTION_MODE_OVERLAY:
589                return mOverlayActionMode;
590            case Window.FEATURE_PROGRESS:
591                return mFeatureProgress;
592            case Window.FEATURE_INDETERMINATE_PROGRESS:
593                return mFeatureIndeterminateProgress;
594            case Window.FEATURE_NO_TITLE:
595                return mWindowNoTitle;
596        }
597        return mWindow.hasFeature(featureId);
598    }
599
600    @Override
601    void onTitleChanged(CharSequence title) {
602        if (mDecorContentParent != null) {
603            mDecorContentParent.setWindowTitle(title);
604        } else if (peekSupportActionBar() != null) {
605            peekSupportActionBar().setWindowTitle(title);
606        } else if (mTitleView != null) {
607            mTitleView.setText(title);
608        }
609    }
610
611    @Override
612    void onPanelClosed(final int featureId, Menu menu) {
613        if (featureId == FEATURE_SUPPORT_ACTION_BAR) {
614            ActionBar ab = getSupportActionBar();
615            if (ab != null) {
616                ab.dispatchMenuVisibilityChanged(false);
617            }
618        } else if (featureId == FEATURE_OPTIONS_PANEL) {
619            // Make sure that the options panel is closed. This is mainly used when we're using a
620            // ToolbarActionBar
621            PanelFeatureState st = getPanelState(featureId, true);
622            if (st.isOpen) {
623                closePanel(st, false);
624            }
625        }
626    }
627
628    @Override
629    boolean onMenuOpened(final int featureId, Menu menu) {
630        if (featureId == FEATURE_SUPPORT_ACTION_BAR) {
631            ActionBar ab = getSupportActionBar();
632            if (ab != null) {
633                ab.dispatchMenuVisibilityChanged(true);
634            }
635            return true;
636        }
637        return false;
638    }
639
640    @Override
641    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
642        final Window.Callback cb = getWindowCallback();
643        if (cb != null && !isDestroyed()) {
644            final PanelFeatureState panel = findMenuPanel(menu.getRootMenu());
645            if (panel != null) {
646                return cb.onMenuItemSelected(panel.featureId, item);
647            }
648        }
649        return false;
650    }
651
652    @Override
653    public void onMenuModeChange(MenuBuilder menu) {
654        reopenMenu(menu, true);
655    }
656
657    @Override
658    public ActionMode startSupportActionMode(ActionMode.Callback callback) {
659        if (callback == null) {
660            throw new IllegalArgumentException("ActionMode callback can not be null.");
661        }
662
663        if (mActionMode != null) {
664            mActionMode.finish();
665        }
666
667        final ActionMode.Callback wrappedCallback = new ActionModeCallbackWrapperV7(callback);
668
669        ActionBar ab = getSupportActionBar();
670        if (ab != null) {
671            mActionMode = ab.startActionMode(wrappedCallback);
672            if (mActionMode != null && mAppCompatCallback != null) {
673                mAppCompatCallback.onSupportActionModeStarted(mActionMode);
674            }
675        }
676
677        if (mActionMode == null) {
678            // If the action bar didn't provide an action mode, start the emulated window one
679            mActionMode = startSupportActionModeFromWindow(wrappedCallback);
680        }
681
682        return mActionMode;
683    }
684
685    @Override
686    public void invalidateOptionsMenu() {
687        final ActionBar ab = getSupportActionBar();
688        if (ab != null && ab.invalidateOptionsMenu()) return;
689
690        invalidatePanelMenu(FEATURE_OPTIONS_PANEL);
691    }
692
693    @Override
694    ActionMode startSupportActionModeFromWindow(ActionMode.Callback callback) {
695        endOnGoingFadeAnimation();
696        if (mActionMode != null) {
697            mActionMode.finish();
698        }
699
700        final ActionMode.Callback wrappedCallback = new ActionModeCallbackWrapperV7(callback);
701        ActionMode mode = null;
702        if (mAppCompatCallback != null && !isDestroyed()) {
703            try {
704                mode = mAppCompatCallback.onWindowStartingSupportActionMode(wrappedCallback);
705            } catch (AbstractMethodError ame) {
706                // Older apps might not implement this callback method.
707            }
708        }
709
710        if (mode != null) {
711            mActionMode = mode;
712        } else {
713            if (mActionModeView == null) {
714                if (mIsFloating) {
715                    // Use the action bar theme.
716                    final TypedValue outValue = new TypedValue();
717                    final Resources.Theme baseTheme = mContext.getTheme();
718                    baseTheme.resolveAttribute(R.attr.actionBarTheme, outValue, true);
719
720                    final Context actionBarContext;
721                    if (outValue.resourceId != 0) {
722                        final Resources.Theme actionBarTheme = mContext.getResources().newTheme();
723                        actionBarTheme.setTo(baseTheme);
724                        actionBarTheme.applyStyle(outValue.resourceId, true);
725
726                        actionBarContext = new ContextThemeWrapper(mContext, 0);
727                        actionBarContext.getTheme().setTo(actionBarTheme);
728                    } else {
729                        actionBarContext = mContext;
730                    }
731
732                    mActionModeView = new ActionBarContextView(actionBarContext);
733                    mActionModePopup = new PopupWindow(actionBarContext, null,
734                            R.attr.actionModePopupWindowStyle);
735                    PopupWindowCompat.setWindowLayoutType(mActionModePopup,
736                            WindowManager.LayoutParams.TYPE_APPLICATION);
737                    mActionModePopup.setContentView(mActionModeView);
738                    mActionModePopup.setWidth(ViewGroup.LayoutParams.MATCH_PARENT);
739
740                    actionBarContext.getTheme().resolveAttribute(
741                            R.attr.actionBarSize, outValue, true);
742                    final int height = TypedValue.complexToDimensionPixelSize(outValue.data,
743                            actionBarContext.getResources().getDisplayMetrics());
744                    mActionModeView.setContentHeight(height);
745                    mActionModePopup.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
746                    mShowActionModePopup = new Runnable() {
747                        public void run() {
748                            mActionModePopup.showAtLocation(
749                                    mActionModeView,
750                                    Gravity.TOP | Gravity.FILL_HORIZONTAL, 0, 0);
751                            endOnGoingFadeAnimation();
752                            ViewCompat.setAlpha(mActionModeView, 0f);
753                            mFadeAnim = ViewCompat.animate(mActionModeView).alpha(1f);
754                            mFadeAnim.setListener(new ViewPropertyAnimatorListenerAdapter() {
755                                @Override
756                                public void onAnimationEnd(View view) {
757                                    ViewCompat.setAlpha(mActionModeView, 1f);
758                                    mFadeAnim.setListener(null);
759                                    mFadeAnim = null;
760                                }
761
762                                @Override
763                                public void onAnimationStart(View view) {
764                                    mActionModeView.setVisibility(View.VISIBLE);
765                                }
766                            });
767                        }
768                    };
769                } else {
770                    ViewStubCompat stub = (ViewStubCompat) mSubDecor
771                            .findViewById(R.id.action_mode_bar_stub);
772                    if (stub != null) {
773                        // Set the layout inflater so that it is inflated with the action bar's context
774                        stub.setLayoutInflater(LayoutInflater.from(getActionBarThemedContext()));
775                        mActionModeView = (ActionBarContextView) stub.inflate();
776                    }
777                }
778            }
779
780            if (mActionModeView != null) {
781                endOnGoingFadeAnimation();
782                mActionModeView.killMode();
783                mode = new StandaloneActionMode(mActionModeView.getContext(), mActionModeView,
784                        wrappedCallback, mActionModePopup == null);
785                if (callback.onCreateActionMode(mode, mode.getMenu())) {
786                    mode.invalidate();
787                    mActionModeView.initForMode(mode);
788                    mActionMode = mode;
789                    ViewCompat.setAlpha(mActionModeView, 0f);
790                    mFadeAnim = ViewCompat.animate(mActionModeView).alpha(1f);
791                    mFadeAnim.setListener(new ViewPropertyAnimatorListenerAdapter() {
792                        @Override
793                        public void onAnimationEnd(View view) {
794                            ViewCompat.setAlpha(mActionModeView, 1f);
795                            mFadeAnim.setListener(null);
796                            mFadeAnim = null;
797                        }
798
799                        @Override
800                        public void onAnimationStart(View view) {
801                            mActionModeView.setVisibility(View.VISIBLE);
802                            mActionModeView.sendAccessibilityEvent(
803                                    AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
804                            if (mActionModeView.getParent() != null) {
805                                ViewCompat.requestApplyInsets((View) mActionModeView.getParent());
806                            }
807                        }
808                    });
809                    if (mActionModePopup != null) {
810                        mWindow.getDecorView().post(mShowActionModePopup);
811                    }
812                } else {
813                    mActionMode = null;
814                }
815            }
816        }
817        if (mActionMode != null && mAppCompatCallback != null) {
818            mAppCompatCallback.onSupportActionModeStarted(mActionMode);
819        }
820        return mActionMode;
821    }
822
823    private void endOnGoingFadeAnimation() {
824        if (mFadeAnim != null) {
825            mFadeAnim.cancel();
826        }
827    }
828
829    boolean onBackPressed() {
830        // Back cancels action modes first.
831        if (mActionMode != null) {
832            mActionMode.finish();
833            return true;
834        }
835
836        // Next collapse any expanded action views.
837        ActionBar ab = getSupportActionBar();
838        if (ab != null && ab.collapseActionView()) {
839            return true;
840        }
841
842        // Let the call through...
843        return false;
844    }
845
846    @Override
847    boolean onKeyShortcut(int keyCode, KeyEvent ev) {
848        // Let the Action Bar have a chance at handling the shortcut
849        ActionBar ab = getSupportActionBar();
850        if (ab != null && ab.onKeyShortcut(keyCode, ev)) {
851            return true;
852        }
853
854        // If the panel is already prepared, then perform the shortcut using it.
855        boolean handled;
856        if (mPreparedPanel != null) {
857            handled = performPanelShortcut(mPreparedPanel, ev.getKeyCode(), ev,
858                    Menu.FLAG_PERFORM_NO_CLOSE);
859            if (handled) {
860                if (mPreparedPanel != null) {
861                    mPreparedPanel.isHandled = true;
862                }
863                return true;
864            }
865        }
866
867        // If the panel is not prepared, then we may be trying to handle a shortcut key
868        // combination such as Control+C.  Temporarily prepare the panel then mark it
869        // unprepared again when finished to ensure that the panel will again be prepared
870        // the next time it is shown for real.
871        if (mPreparedPanel == null) {
872            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
873            preparePanel(st, ev);
874            handled = performPanelShortcut(st, ev.getKeyCode(), ev, Menu.FLAG_PERFORM_NO_CLOSE);
875            st.isPrepared = false;
876            if (handled) {
877                return true;
878            }
879        }
880        return false;
881    }
882
883    @Override
884    boolean dispatchKeyEvent(KeyEvent event) {
885        if (event.getKeyCode() == KeyEvent.KEYCODE_MENU) {
886            // If this is a MENU event, let the Activity have a go.
887            if (mOriginalWindowCallback.dispatchKeyEvent(event)) {
888                return true;
889            }
890        }
891
892        final int keyCode = event.getKeyCode();
893        final int action = event.getAction();
894        final boolean isDown = action == KeyEvent.ACTION_DOWN;
895
896        return isDown ? onKeyDown(keyCode, event) : onKeyUp(keyCode, event);
897    }
898
899    boolean onKeyUp(int keyCode, KeyEvent event) {
900        switch (keyCode) {
901            case KeyEvent.KEYCODE_MENU:
902                onKeyUpPanel(Window.FEATURE_OPTIONS_PANEL, event);
903                return true;
904            case KeyEvent.KEYCODE_BACK:
905                final boolean wasLongPressBackDown = mLongPressBackDown;
906                mLongPressBackDown = false;
907
908                PanelFeatureState st = getPanelState(Window.FEATURE_OPTIONS_PANEL, false);
909                if (st != null && st.isOpen) {
910                    if (!wasLongPressBackDown) {
911                        // Certain devices allow opening the options menu via a long press of the
912                        // back button. We should only close the open options menu if it wasn't
913                        // opened via a long press gesture.
914                        closePanel(st, true);
915                    }
916                    return true;
917                }
918                if (onBackPressed()) {
919                    return true;
920                }
921                break;
922        }
923        return false;
924    }
925
926    boolean onKeyDown(int keyCode, KeyEvent event) {
927        switch (keyCode) {
928            case KeyEvent.KEYCODE_MENU:
929                onKeyDownPanel(Window.FEATURE_OPTIONS_PANEL, event);
930                // We need to return true here and not let it bubble up to the Window.
931                // For empty menus, PhoneWindow's KEYCODE_BACK handling will steals all events,
932                // not allowing the Activity to call onBackPressed().
933                return true;
934            case KeyEvent.KEYCODE_BACK:
935                // Certain devices allow opening the options menu via a long press of the back
936                // button. We keep a record of whether the last event is from a long press.
937                mLongPressBackDown = (event.getFlags() & KeyEvent.FLAG_LONG_PRESS) != 0;
938                break;
939        }
940
941        // On API v7-10 we need to manually call onKeyShortcut() as this is not called
942        // from the Activity
943        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB) {
944            // We do not return true here otherwise dispatchKeyEvent will not reach the Activity
945            // (which results in the back button not working)
946            onKeyShortcut(keyCode, event);
947        }
948        return false;
949    }
950
951    @Override
952    public View createView(View parent, final String name, @NonNull Context context,
953            @NonNull AttributeSet attrs) {
954        final boolean isPre21 = Build.VERSION.SDK_INT < 21;
955
956        if (mAppCompatViewInflater == null) {
957            mAppCompatViewInflater = new AppCompatViewInflater();
958        }
959
960        // We only want the View to inherit its context if we're running pre-v21
961        final boolean inheritContext = isPre21 && shouldInheritContext((ViewParent) parent);
962
963        return mAppCompatViewInflater.createView(parent, name, context, attrs, inheritContext,
964                isPre21, /* Only read android:theme pre-L (L+ handles this anyway) */
965                true /* Read read app:theme as a fallback at all times for legacy reasons */
966        );
967    }
968
969    private boolean shouldInheritContext(ViewParent parent) {
970        if (parent == null) {
971            // The initial parent is null so just return false
972            return false;
973        }
974        final View windowDecor = mWindow.getDecorView();
975        while (true) {
976            if (parent == null) {
977                // Bingo. We've hit a view which has a null parent before being terminated from
978                // the loop. This is (most probably) because it's the root view in an inflation
979                // call, therefore we should inherit. This works as the inflated layout is only
980                // added to the hierarchy at the end of the inflate() call.
981                return true;
982            } else if (parent == windowDecor || !(parent instanceof View)
983                    || ViewCompat.isAttachedToWindow((View) parent)) {
984                // We have either hit the window's decor view, a parent which isn't a View
985                // (i.e. ViewRootImpl), or an attached view, so we know that the original parent
986                // is currently added to the view hierarchy. This means that it has not be
987                // inflated in the current inflate() call and we should not inherit the context.
988                return false;
989            }
990            parent = parent.getParent();
991        }
992    }
993
994    @Override
995    public void installViewFactory() {
996        LayoutInflater layoutInflater = LayoutInflater.from(mContext);
997        if (layoutInflater.getFactory() == null) {
998            LayoutInflaterCompat.setFactory(layoutInflater, this);
999        } else {
1000            if (!(LayoutInflaterCompat.getFactory(layoutInflater)
1001                    instanceof AppCompatDelegateImplV7)) {
1002                Log.i(TAG, "The Activity's LayoutInflater already has a Factory installed"
1003                        + " so we can not install AppCompat's");
1004            }
1005        }
1006    }
1007
1008    /**
1009     * From {@link android.support.v4.view.LayoutInflaterFactory}
1010     */
1011    @Override
1012    public final View onCreateView(View parent, String name,
1013            Context context, AttributeSet attrs) {
1014        // First let the Activity's Factory try and inflate the view
1015        final View view = callActivityOnCreateView(parent, name, context, attrs);
1016        if (view != null) {
1017            return view;
1018        }
1019
1020        // If the Factory didn't handle it, let our createView() method try
1021        return createView(parent, name, context, attrs);
1022    }
1023
1024    View callActivityOnCreateView(View parent, String name, Context context, AttributeSet attrs) {
1025        // Let the Activity's LayoutInflater.Factory try and handle it
1026        if (mOriginalWindowCallback instanceof LayoutInflater.Factory) {
1027            final View result = ((LayoutInflater.Factory) mOriginalWindowCallback)
1028                    .onCreateView(name, context, attrs);
1029            if (result != null) {
1030                return result;
1031            }
1032        }
1033        return null;
1034    }
1035
1036    private void openPanel(final PanelFeatureState st, KeyEvent event) {
1037        // Already open, return
1038        if (st.isOpen || isDestroyed()) {
1039            return;
1040        }
1041
1042        // Don't open an options panel for honeycomb apps on xlarge devices.
1043        // (The app should be using an action bar for menu items.)
1044        if (st.featureId == FEATURE_OPTIONS_PANEL) {
1045            Context context = mContext;
1046            Configuration config = context.getResources().getConfiguration();
1047            boolean isXLarge = (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) ==
1048                    Configuration.SCREENLAYOUT_SIZE_XLARGE;
1049            boolean isHoneycombApp = context.getApplicationInfo().targetSdkVersion >=
1050                    android.os.Build.VERSION_CODES.HONEYCOMB;
1051
1052            if (isXLarge && isHoneycombApp) {
1053                return;
1054            }
1055        }
1056
1057        Window.Callback cb = getWindowCallback();
1058        if ((cb != null) && (!cb.onMenuOpened(st.featureId, st.menu))) {
1059            // Callback doesn't want the menu to open, reset any state
1060            closePanel(st, true);
1061            return;
1062        }
1063
1064        final WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
1065        if (wm == null) {
1066            return;
1067        }
1068
1069        // Prepare panel (should have been done before, but just in case)
1070        if (!preparePanel(st, event)) {
1071            return;
1072        }
1073
1074        int width = WRAP_CONTENT;
1075        if (st.decorView == null || st.refreshDecorView) {
1076            if (st.decorView == null) {
1077                // Initialize the panel decor, this will populate st.decorView
1078                if (!initializePanelDecor(st) || (st.decorView == null))
1079                    return;
1080            } else if (st.refreshDecorView && (st.decorView.getChildCount() > 0)) {
1081                // Decor needs refreshing, so remove its views
1082                st.decorView.removeAllViews();
1083            }
1084
1085            // This will populate st.shownPanelView
1086            if (!initializePanelContent(st) || !st.hasPanelItems()) {
1087                return;
1088            }
1089
1090            ViewGroup.LayoutParams lp = st.shownPanelView.getLayoutParams();
1091            if (lp == null) {
1092                lp = new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
1093            }
1094
1095            int backgroundResId = st.background;
1096            st.decorView.setBackgroundResource(backgroundResId);
1097
1098            ViewParent shownPanelParent = st.shownPanelView.getParent();
1099            if (shownPanelParent != null && shownPanelParent instanceof ViewGroup) {
1100                ((ViewGroup) shownPanelParent).removeView(st.shownPanelView);
1101            }
1102            st.decorView.addView(st.shownPanelView, lp);
1103
1104            /*
1105             * Give focus to the view, if it or one of its children does not
1106             * already have it.
1107             */
1108            if (!st.shownPanelView.hasFocus()) {
1109                st.shownPanelView.requestFocus();
1110            }
1111        } else if (st.createdPanelView != null) {
1112            // If we already had a panel view, carry width=MATCH_PARENT through
1113            // as we did above when it was created.
1114            ViewGroup.LayoutParams lp = st.createdPanelView.getLayoutParams();
1115            if (lp != null && lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
1116                width = MATCH_PARENT;
1117            }
1118        }
1119
1120        st.isHandled = false;
1121
1122        WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
1123                width, WRAP_CONTENT,
1124                st.x, st.y, WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL,
1125                WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM
1126                        | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH,
1127                PixelFormat.TRANSLUCENT);
1128
1129        lp.gravity = st.gravity;
1130        lp.windowAnimations = st.windowAnimations;
1131
1132        wm.addView(st.decorView, lp);
1133        st.isOpen = true;
1134    }
1135
1136    private boolean initializePanelDecor(PanelFeatureState st) {
1137        st.setStyle(getActionBarThemedContext());
1138        st.decorView = new ListMenuDecorView(st.listPresenterContext);
1139        st.gravity = Gravity.CENTER | Gravity.BOTTOM;
1140        return true;
1141    }
1142
1143    private void reopenMenu(MenuBuilder menu, boolean toggleMenuMode) {
1144        if (mDecorContentParent != null && mDecorContentParent.canShowOverflowMenu() &&
1145                (!ViewConfigurationCompat.hasPermanentMenuKey(ViewConfiguration.get(mContext)) ||
1146                        mDecorContentParent.isOverflowMenuShowPending())) {
1147
1148            final Window.Callback cb = getWindowCallback();
1149
1150            if (!mDecorContentParent.isOverflowMenuShowing() || !toggleMenuMode) {
1151                if (cb != null && !isDestroyed()) {
1152                    // If we have a menu invalidation pending, do it now.
1153                    if (mInvalidatePanelMenuPosted &&
1154                            (mInvalidatePanelMenuFeatures & (1 << FEATURE_OPTIONS_PANEL)) != 0) {
1155                        mWindow.getDecorView().removeCallbacks(mInvalidatePanelMenuRunnable);
1156                        mInvalidatePanelMenuRunnable.run();
1157                    }
1158
1159                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
1160
1161                    // If we don't have a menu or we're waiting for a full content refresh,
1162                    // forget it. This is a lingering event that no longer matters.
1163                    if (st.menu != null && !st.refreshMenuContent &&
1164                            cb.onPreparePanel(FEATURE_OPTIONS_PANEL, st.createdPanelView, st.menu)) {
1165                        cb.onMenuOpened(FEATURE_SUPPORT_ACTION_BAR, st.menu);
1166                        mDecorContentParent.showOverflowMenu();
1167                    }
1168                }
1169            } else {
1170                mDecorContentParent.hideOverflowMenu();
1171                if (!isDestroyed()) {
1172                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
1173                    cb.onPanelClosed(FEATURE_SUPPORT_ACTION_BAR, st.menu);
1174                }
1175            }
1176            return;
1177        }
1178
1179        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
1180
1181        st.refreshDecorView = true;
1182        closePanel(st, false);
1183
1184        openPanel(st, null);
1185    }
1186
1187    private boolean initializePanelMenu(final PanelFeatureState st) {
1188        Context context = mContext;
1189
1190        // If we have an action bar, initialize the menu with the right theme.
1191        if ((st.featureId == FEATURE_OPTIONS_PANEL || st.featureId == FEATURE_SUPPORT_ACTION_BAR) &&
1192                mDecorContentParent != null) {
1193            final TypedValue outValue = new TypedValue();
1194            final Resources.Theme baseTheme = context.getTheme();
1195            baseTheme.resolveAttribute(R.attr.actionBarTheme, outValue, true);
1196
1197            Resources.Theme widgetTheme = null;
1198            if (outValue.resourceId != 0) {
1199                widgetTheme = context.getResources().newTheme();
1200                widgetTheme.setTo(baseTheme);
1201                widgetTheme.applyStyle(outValue.resourceId, true);
1202                widgetTheme.resolveAttribute(
1203                        R.attr.actionBarWidgetTheme, outValue, true);
1204            } else {
1205                baseTheme.resolveAttribute(
1206                        R.attr.actionBarWidgetTheme, outValue, true);
1207            }
1208
1209            if (outValue.resourceId != 0) {
1210                if (widgetTheme == null) {
1211                    widgetTheme = context.getResources().newTheme();
1212                    widgetTheme.setTo(baseTheme);
1213                }
1214                widgetTheme.applyStyle(outValue.resourceId, true);
1215            }
1216
1217            if (widgetTheme != null) {
1218                context = new ContextThemeWrapper(context, 0);
1219                context.getTheme().setTo(widgetTheme);
1220            }
1221        }
1222
1223        final MenuBuilder menu = new MenuBuilder(context);
1224        menu.setCallback(this);
1225        st.setMenu(menu);
1226
1227        return true;
1228    }
1229
1230    private boolean initializePanelContent(PanelFeatureState st) {
1231        if (st.createdPanelView != null) {
1232            st.shownPanelView = st.createdPanelView;
1233            return true;
1234        }
1235
1236        if (st.menu == null) {
1237            return false;
1238        }
1239
1240        if (mPanelMenuPresenterCallback == null) {
1241            mPanelMenuPresenterCallback = new PanelMenuPresenterCallback();
1242        }
1243
1244        MenuView menuView = st.getListMenuView(mPanelMenuPresenterCallback);
1245
1246        st.shownPanelView = (View) menuView;
1247
1248        return st.shownPanelView != null;
1249    }
1250
1251    private boolean preparePanel(PanelFeatureState st, KeyEvent event) {
1252        if (isDestroyed()) {
1253            return false;
1254        }
1255
1256        // Already prepared (isPrepared will be reset to false later)
1257        if (st.isPrepared) {
1258            return true;
1259        }
1260
1261        if ((mPreparedPanel != null) && (mPreparedPanel != st)) {
1262            // Another Panel is prepared and possibly open, so close it
1263            closePanel(mPreparedPanel, false);
1264        }
1265
1266        final Window.Callback cb = getWindowCallback();
1267
1268        if (cb != null) {
1269            st.createdPanelView = cb.onCreatePanelView(st.featureId);
1270        }
1271
1272        final boolean isActionBarMenu =
1273                (st.featureId == FEATURE_OPTIONS_PANEL || st.featureId == FEATURE_SUPPORT_ACTION_BAR);
1274
1275        if (isActionBarMenu && mDecorContentParent != null) {
1276            // Enforce ordering guarantees around events so that the action bar never
1277            // dispatches menu-related events before the panel is prepared.
1278            mDecorContentParent.setMenuPrepared();
1279        }
1280
1281        if (st.createdPanelView == null &&
1282                (!isActionBarMenu || !(peekSupportActionBar() instanceof ToolbarActionBar))) {
1283            // Since ToolbarActionBar handles the list options menu itself, we only want to
1284            // init this menu panel if we're not using a TAB.
1285            if (st.menu == null || st.refreshMenuContent) {
1286                if (st.menu == null) {
1287                    if (!initializePanelMenu(st) || (st.menu == null)) {
1288                        return false;
1289                    }
1290                }
1291
1292                if (isActionBarMenu && mDecorContentParent != null) {
1293                    if (mActionMenuPresenterCallback == null) {
1294                        mActionMenuPresenterCallback = new ActionMenuPresenterCallback();
1295                    }
1296                    mDecorContentParent.setMenu(st.menu, mActionMenuPresenterCallback);
1297                }
1298
1299                // Creating the panel menu will involve a lot of manipulation;
1300                // don't dispatch change events to presenters until we're done.
1301                st.menu.stopDispatchingItemsChanged();
1302                if (!cb.onCreatePanelMenu(st.featureId, st.menu)) {
1303                    // Ditch the menu created above
1304                    st.setMenu(null);
1305
1306                    if (isActionBarMenu && mDecorContentParent != null) {
1307                        // Don't show it in the action bar either
1308                        mDecorContentParent.setMenu(null, mActionMenuPresenterCallback);
1309                    }
1310
1311                    return false;
1312                }
1313
1314                st.refreshMenuContent = false;
1315            }
1316
1317            // Preparing the panel menu can involve a lot of manipulation;
1318            // don't dispatch change events to presenters until we're done.
1319            st.menu.stopDispatchingItemsChanged();
1320
1321            // Restore action view state before we prepare. This gives apps
1322            // an opportunity to override frozen/restored state in onPrepare.
1323            if (st.frozenActionViewState != null) {
1324                st.menu.restoreActionViewStates(st.frozenActionViewState);
1325                st.frozenActionViewState = null;
1326            }
1327
1328            // Callback and return if the callback does not want to show the menu
1329            if (!cb.onPreparePanel(FEATURE_OPTIONS_PANEL, st.createdPanelView, st.menu)) {
1330                if (isActionBarMenu && mDecorContentParent != null) {
1331                    // The app didn't want to show the menu for now but it still exists.
1332                    // Clear it out of the action bar.
1333                    mDecorContentParent.setMenu(null, mActionMenuPresenterCallback);
1334                }
1335                st.menu.startDispatchingItemsChanged();
1336                return false;
1337            }
1338
1339            // Set the proper keymap
1340            KeyCharacterMap kmap = KeyCharacterMap.load(
1341                    event != null ? event.getDeviceId() : KeyCharacterMap.VIRTUAL_KEYBOARD);
1342            st.qwertyMode = kmap.getKeyboardType() != KeyCharacterMap.NUMERIC;
1343            st.menu.setQwertyMode(st.qwertyMode);
1344            st.menu.startDispatchingItemsChanged();
1345        }
1346
1347        // Set other state
1348        st.isPrepared = true;
1349        st.isHandled = false;
1350        mPreparedPanel = st;
1351
1352        return true;
1353    }
1354
1355    private void checkCloseActionMenu(MenuBuilder menu) {
1356        if (mClosingActionMenu) {
1357            return;
1358        }
1359
1360        mClosingActionMenu = true;
1361        mDecorContentParent.dismissPopups();
1362        Window.Callback cb = getWindowCallback();
1363        if (cb != null && !isDestroyed()) {
1364            cb.onPanelClosed(FEATURE_SUPPORT_ACTION_BAR, menu);
1365        }
1366        mClosingActionMenu = false;
1367    }
1368
1369    private void closePanel(int featureId) {
1370        closePanel(getPanelState(featureId, true), true);
1371    }
1372
1373    private void closePanel(PanelFeatureState st, boolean doCallback) {
1374        if (doCallback && st.featureId == FEATURE_OPTIONS_PANEL &&
1375                mDecorContentParent != null && mDecorContentParent.isOverflowMenuShowing()) {
1376            checkCloseActionMenu(st.menu);
1377            return;
1378        }
1379
1380        final WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
1381        if (wm != null && st.isOpen && st.decorView != null) {
1382            wm.removeView(st.decorView);
1383
1384            if (doCallback) {
1385                callOnPanelClosed(st.featureId, st, null);
1386            }
1387        }
1388
1389        st.isPrepared = false;
1390        st.isHandled = false;
1391        st.isOpen = false;
1392
1393        // This view is no longer shown, so null it out
1394        st.shownPanelView = null;
1395
1396        // Next time the menu opens, it should not be in expanded mode, so
1397        // force a refresh of the decor
1398        st.refreshDecorView = true;
1399
1400        if (mPreparedPanel == st) {
1401            mPreparedPanel = null;
1402        }
1403    }
1404
1405    private boolean onKeyDownPanel(int featureId, KeyEvent event) {
1406        if (event.getRepeatCount() == 0) {
1407            PanelFeatureState st = getPanelState(featureId, true);
1408            if (!st.isOpen) {
1409                return preparePanel(st, event);
1410            }
1411        }
1412
1413        return false;
1414    }
1415
1416    private boolean onKeyUpPanel(int featureId, KeyEvent event) {
1417        if (mActionMode != null) {
1418            return false;
1419        }
1420
1421        boolean handled = false;
1422        final PanelFeatureState st = getPanelState(featureId, true);
1423        if (featureId == FEATURE_OPTIONS_PANEL && mDecorContentParent != null &&
1424                mDecorContentParent.canShowOverflowMenu() &&
1425                !ViewConfigurationCompat.hasPermanentMenuKey(ViewConfiguration.get(mContext))) {
1426            if (!mDecorContentParent.isOverflowMenuShowing()) {
1427                if (!isDestroyed() && preparePanel(st, event)) {
1428                    handled = mDecorContentParent.showOverflowMenu();
1429                }
1430            } else {
1431                handled = mDecorContentParent.hideOverflowMenu();
1432            }
1433        } else {
1434            if (st.isOpen || st.isHandled) {
1435                // Play the sound effect if the user closed an open menu (and not if
1436                // they just released a menu shortcut)
1437                handled = st.isOpen;
1438                // Close menu
1439                closePanel(st, true);
1440            } else if (st.isPrepared) {
1441                boolean show = true;
1442                if (st.refreshMenuContent) {
1443                    // Something may have invalidated the menu since we prepared it.
1444                    // Re-prepare it to refresh.
1445                    st.isPrepared = false;
1446                    show = preparePanel(st, event);
1447                }
1448
1449                if (show) {
1450                    // Show menu
1451                    openPanel(st, event);
1452                    handled = true;
1453                }
1454            }
1455        }
1456
1457        if (handled) {
1458            AudioManager audioManager = (AudioManager) mContext.getSystemService(
1459                    Context.AUDIO_SERVICE);
1460            if (audioManager != null) {
1461                audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK);
1462            } else {
1463                Log.w(TAG, "Couldn't get audio manager");
1464            }
1465        }
1466        return handled;
1467    }
1468
1469    private void callOnPanelClosed(int featureId, PanelFeatureState panel, Menu menu) {
1470        // Try to get a menu
1471        if (menu == null) {
1472            // Need a panel to grab the menu, so try to get that
1473            if (panel == null) {
1474                if ((featureId >= 0) && (featureId < mPanels.length)) {
1475                    panel = mPanels[featureId];
1476                }
1477            }
1478
1479            if (panel != null) {
1480                // menu still may be null, which is okay--we tried our best
1481                menu = panel.menu;
1482            }
1483        }
1484
1485        // If the panel is not open, do not callback
1486        if ((panel != null) && (!panel.isOpen))
1487            return;
1488
1489        if (!isDestroyed()) {
1490            // We need to be careful which callback we dispatch the call to. We can not dispatch
1491            // this to the Window's callback since that will call back into this method and cause a
1492            // crash. Instead we need to dispatch down to the original Activity/Dialog/etc.
1493            mOriginalWindowCallback.onPanelClosed(featureId, menu);
1494        }
1495    }
1496
1497    private PanelFeatureState findMenuPanel(Menu menu) {
1498        final PanelFeatureState[] panels = mPanels;
1499        final int N = panels != null ? panels.length : 0;
1500        for (int i = 0; i < N; i++) {
1501            final PanelFeatureState panel = panels[i];
1502            if (panel != null && panel.menu == menu) {
1503                return panel;
1504            }
1505        }
1506        return null;
1507    }
1508
1509    private PanelFeatureState getPanelState(int featureId, boolean required) {
1510        PanelFeatureState[] ar;
1511        if ((ar = mPanels) == null || ar.length <= featureId) {
1512            PanelFeatureState[] nar = new PanelFeatureState[featureId + 1];
1513            if (ar != null) {
1514                System.arraycopy(ar, 0, nar, 0, ar.length);
1515            }
1516            mPanels = ar = nar;
1517        }
1518
1519        PanelFeatureState st = ar[featureId];
1520        if (st == null) {
1521            ar[featureId] = st = new PanelFeatureState(featureId);
1522        }
1523        return st;
1524    }
1525
1526    private boolean performPanelShortcut(PanelFeatureState st, int keyCode, KeyEvent event,
1527            int flags) {
1528        if (event.isSystem()) {
1529            return false;
1530        }
1531
1532        boolean handled = false;
1533
1534        // Only try to perform menu shortcuts if preparePanel returned true (possible false
1535        // return value from application not wanting to show the menu).
1536        if ((st.isPrepared || preparePanel(st, event)) && st.menu != null) {
1537            // The menu is prepared now, perform the shortcut on it
1538            handled = st.menu.performShortcut(keyCode, event, flags);
1539        }
1540
1541        if (handled) {
1542            // Only close down the menu if we don't have an action bar keeping it open.
1543            if ((flags & Menu.FLAG_PERFORM_NO_CLOSE) == 0 && mDecorContentParent == null) {
1544                closePanel(st, true);
1545            }
1546        }
1547
1548        return handled;
1549    }
1550
1551    private void invalidatePanelMenu(int featureId) {
1552        mInvalidatePanelMenuFeatures |= 1 << featureId;
1553
1554        if (!mInvalidatePanelMenuPosted) {
1555            ViewCompat.postOnAnimation(mWindow.getDecorView(), mInvalidatePanelMenuRunnable);
1556            mInvalidatePanelMenuPosted = true;
1557        }
1558    }
1559
1560    private void doInvalidatePanelMenu(int featureId) {
1561        PanelFeatureState st = getPanelState(featureId, true);
1562        Bundle savedActionViewStates = null;
1563        if (st.menu != null) {
1564            savedActionViewStates = new Bundle();
1565            st.menu.saveActionViewStates(savedActionViewStates);
1566            if (savedActionViewStates.size() > 0) {
1567                st.frozenActionViewState = savedActionViewStates;
1568            }
1569            // This will be started again when the panel is prepared.
1570            st.menu.stopDispatchingItemsChanged();
1571            st.menu.clear();
1572        }
1573        st.refreshMenuContent = true;
1574        st.refreshDecorView = true;
1575
1576        // Prepare the options panel if we have an action bar
1577        if ((featureId == FEATURE_SUPPORT_ACTION_BAR || featureId == FEATURE_OPTIONS_PANEL)
1578                && mDecorContentParent != null) {
1579            st = getPanelState(Window.FEATURE_OPTIONS_PANEL, false);
1580            if (st != null) {
1581                st.isPrepared = false;
1582                preparePanel(st, null);
1583            }
1584        }
1585    }
1586
1587    /**
1588     * Updates the status bar guard
1589     *
1590     * @param insetTop the current top system window inset
1591     * @return the new top system window inset
1592     */
1593    private int updateStatusGuard(int insetTop) {
1594        boolean showStatusGuard = false;
1595        // Show the status guard when the non-overlay contextual action bar is showing
1596        if (mActionModeView != null) {
1597            if (mActionModeView.getLayoutParams() instanceof ViewGroup.MarginLayoutParams) {
1598                ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams)
1599                        mActionModeView.getLayoutParams();
1600                boolean mlpChanged = false;
1601
1602                if (mActionModeView.isShown()) {
1603                    if (mTempRect1 == null) {
1604                        mTempRect1 = new Rect();
1605                        mTempRect2 = new Rect();
1606                    }
1607                    final Rect insets = mTempRect1;
1608                    final Rect localInsets = mTempRect2;
1609                    insets.set(0, insetTop, 0, 0);
1610
1611                    ViewUtils.computeFitSystemWindows(mSubDecor, insets, localInsets);
1612                    final int newMargin = localInsets.top == 0 ? insetTop : 0;
1613                    if (mlp.topMargin != newMargin) {
1614                        mlpChanged = true;
1615                        mlp.topMargin = insetTop;
1616
1617                        if (mStatusGuard == null) {
1618                            mStatusGuard = new View(mContext);
1619                            mStatusGuard.setBackgroundColor(mContext.getResources()
1620                                    .getColor(R.color.abc_input_method_navigation_guard));
1621                            mSubDecor.addView(mStatusGuard, -1,
1622                                    new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
1623                                            insetTop));
1624                        } else {
1625                            ViewGroup.LayoutParams lp = mStatusGuard.getLayoutParams();
1626                            if (lp.height != insetTop) {
1627                                lp.height = insetTop;
1628                                mStatusGuard.setLayoutParams(lp);
1629                            }
1630                        }
1631                    }
1632
1633                    // The action mode's theme may differ from the app, so
1634                    // always show the status guard above it.
1635                    showStatusGuard = mStatusGuard != null;
1636
1637                    // We only need to consume the insets if the action
1638                    // mode is overlaid on the app content (e.g. it's
1639                    // sitting in a FrameLayout, see
1640                    // screen_simple_overlay_action_mode.xml).
1641                    if (!mOverlayActionMode && showStatusGuard) {
1642                        insetTop = 0;
1643                    }
1644                } else {
1645                    // reset top margin
1646                    if (mlp.topMargin != 0) {
1647                        mlpChanged = true;
1648                        mlp.topMargin = 0;
1649                    }
1650                }
1651                if (mlpChanged) {
1652                    mActionModeView.setLayoutParams(mlp);
1653                }
1654            }
1655        }
1656        if (mStatusGuard != null) {
1657            mStatusGuard.setVisibility(showStatusGuard ? View.VISIBLE : View.GONE);
1658        }
1659
1660        return insetTop;
1661    }
1662
1663    private void throwFeatureRequestIfSubDecorInstalled() {
1664        if (mSubDecorInstalled) {
1665            throw new AndroidRuntimeException(
1666                    "Window feature must be requested before adding content");
1667        }
1668    }
1669
1670    private int sanitizeWindowFeatureId(int featureId) {
1671        if (featureId == WindowCompat.FEATURE_ACTION_BAR) {
1672            Log.i(TAG, "You should now use the AppCompatDelegate.FEATURE_SUPPORT_ACTION_BAR"
1673                    + " id when requesting this feature.");
1674            return FEATURE_SUPPORT_ACTION_BAR;
1675        } else if (featureId == WindowCompat.FEATURE_ACTION_BAR_OVERLAY) {
1676            Log.i(TAG, "You should now use the AppCompatDelegate.FEATURE_SUPPORT_ACTION_BAR_OVERLAY"
1677                    + " id when requesting this feature.");
1678            return FEATURE_SUPPORT_ACTION_BAR_OVERLAY;
1679        }
1680        // Else we'll just return the original id
1681        return featureId;
1682    }
1683
1684    ViewGroup getSubDecor() {
1685        return mSubDecor;
1686    }
1687
1688    private void dismissPopups() {
1689        if (mDecorContentParent != null) {
1690            mDecorContentParent.dismissPopups();
1691        }
1692
1693        if (mActionModePopup != null) {
1694            mWindow.getDecorView().removeCallbacks(mShowActionModePopup);
1695            if (mActionModePopup.isShowing()) {
1696                try {
1697                    mActionModePopup.dismiss();
1698                } catch (IllegalArgumentException e) {
1699                    // Pre-v18, there are times when the Window will remove the popup before us.
1700                    // In these cases we need to swallow the resulting exception.
1701                }
1702            }
1703            mActionModePopup = null;
1704        }
1705        endOnGoingFadeAnimation();
1706
1707        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
1708        if (st != null && st.menu != null) {
1709            st.menu.close();
1710        }
1711    }
1712
1713    /**
1714     * Clears out internal reference when the action mode is destroyed.
1715     */
1716    class ActionModeCallbackWrapperV7 implements ActionMode.Callback {
1717        private ActionMode.Callback mWrapped;
1718
1719        public ActionModeCallbackWrapperV7(ActionMode.Callback wrapped) {
1720            mWrapped = wrapped;
1721        }
1722
1723        public boolean onCreateActionMode(ActionMode mode, Menu menu) {
1724            return mWrapped.onCreateActionMode(mode, menu);
1725        }
1726
1727        public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
1728            return mWrapped.onPrepareActionMode(mode, menu);
1729        }
1730
1731        public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
1732            return mWrapped.onActionItemClicked(mode, item);
1733        }
1734
1735        public void onDestroyActionMode(ActionMode mode) {
1736            mWrapped.onDestroyActionMode(mode);
1737            if (mActionModePopup != null) {
1738                mWindow.getDecorView().removeCallbacks(mShowActionModePopup);
1739            }
1740
1741            if (mActionModeView != null) {
1742                endOnGoingFadeAnimation();
1743                mFadeAnim = ViewCompat.animate(mActionModeView).alpha(0f);
1744                mFadeAnim.setListener(new ViewPropertyAnimatorListenerAdapter() {
1745                    @Override
1746                    public void onAnimationEnd(View view) {
1747                        mActionModeView.setVisibility(View.GONE);
1748                        if (mActionModePopup != null) {
1749                            mActionModePopup.dismiss();
1750                        } else if (mActionModeView.getParent() instanceof View) {
1751                            ViewCompat.requestApplyInsets((View) mActionModeView.getParent());
1752                        }
1753                        mActionModeView.removeAllViews();
1754                        mFadeAnim.setListener(null);
1755                        mFadeAnim = null;
1756                    }
1757                });
1758            }
1759            if (mAppCompatCallback != null) {
1760                mAppCompatCallback.onSupportActionModeFinished(mActionMode);
1761            }
1762            mActionMode = null;
1763        }
1764    }
1765
1766    private final class PanelMenuPresenterCallback implements MenuPresenter.Callback {
1767        @Override
1768        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
1769            final Menu parentMenu = menu.getRootMenu();
1770            final boolean isSubMenu = parentMenu != menu;
1771            final PanelFeatureState panel = findMenuPanel(isSubMenu ? parentMenu : menu);
1772            if (panel != null) {
1773                if (isSubMenu) {
1774                    callOnPanelClosed(panel.featureId, panel, parentMenu);
1775                    closePanel(panel, true);
1776                } else {
1777                    // Close the panel and only do the callback if the menu is being
1778                    // closed completely, not if opening a sub menu
1779                    closePanel(panel, allMenusAreClosing);
1780                }
1781            }
1782        }
1783
1784        @Override
1785        public boolean onOpenSubMenu(MenuBuilder subMenu) {
1786            if (subMenu == null && mHasActionBar) {
1787                Window.Callback cb = getWindowCallback();
1788                if (cb != null && !isDestroyed()) {
1789                    cb.onMenuOpened(FEATURE_SUPPORT_ACTION_BAR, subMenu);
1790                }
1791            }
1792            return true;
1793        }
1794    }
1795
1796    private final class ActionMenuPresenterCallback implements MenuPresenter.Callback {
1797        @Override
1798        public boolean onOpenSubMenu(MenuBuilder subMenu) {
1799            Window.Callback cb = getWindowCallback();
1800            if (cb != null) {
1801                cb.onMenuOpened(FEATURE_SUPPORT_ACTION_BAR, subMenu);
1802            }
1803            return true;
1804        }
1805
1806        @Override
1807        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
1808            checkCloseActionMenu(menu);
1809        }
1810    }
1811
1812    private static final class PanelFeatureState {
1813
1814        /** Feature ID for this panel. */
1815        int featureId;
1816
1817        int background;
1818
1819        int gravity;
1820
1821        int x;
1822
1823        int y;
1824
1825        int windowAnimations;
1826
1827        /** Dynamic state of the panel. */
1828        ViewGroup decorView;
1829
1830        /** The panel that we are actually showing. */
1831        View shownPanelView;
1832
1833        /** The panel that was returned by onCreatePanelView(). */
1834        View createdPanelView;
1835
1836        /** Use {@link #setMenu} to set this. */
1837        MenuBuilder menu;
1838
1839        ListMenuPresenter listMenuPresenter;
1840
1841        Context listPresenterContext;
1842
1843        /**
1844         * Whether the panel has been prepared (see
1845         * {@link #preparePanel}).
1846         */
1847        boolean isPrepared;
1848
1849        /**
1850         * Whether an item's action has been performed. This happens in obvious
1851         * scenarios (user clicks on menu item), but can also happen with
1852         * chording menu+(shortcut key).
1853         */
1854        boolean isHandled;
1855
1856        boolean isOpen;
1857
1858        public boolean qwertyMode;
1859
1860        boolean refreshDecorView;
1861
1862        boolean refreshMenuContent;
1863
1864        boolean wasLastOpen;
1865
1866        /**
1867         * Contains the state of the menu when told to freeze.
1868         */
1869        Bundle frozenMenuState;
1870
1871        /**
1872         * Contains the state of associated action views when told to freeze.
1873         * These are saved across invalidations.
1874         */
1875        Bundle frozenActionViewState;
1876
1877        PanelFeatureState(int featureId) {
1878            this.featureId = featureId;
1879
1880            refreshDecorView = false;
1881        }
1882
1883        public boolean hasPanelItems() {
1884            if (shownPanelView == null) return false;
1885            if (createdPanelView != null) return true;
1886
1887            return listMenuPresenter.getAdapter().getCount() > 0;
1888        }
1889
1890        /**
1891         * Unregister and free attached MenuPresenters. They will be recreated as needed.
1892         */
1893        public void clearMenuPresenters() {
1894            if (menu != null) {
1895                menu.removeMenuPresenter(listMenuPresenter);
1896            }
1897            listMenuPresenter = null;
1898        }
1899
1900        void setStyle(Context context) {
1901            final TypedValue outValue = new TypedValue();
1902            final Resources.Theme widgetTheme = context.getResources().newTheme();
1903            widgetTheme.setTo(context.getTheme());
1904
1905            // First apply the actionBarPopupTheme
1906            widgetTheme.resolveAttribute(R.attr.actionBarPopupTheme, outValue, true);
1907            if (outValue.resourceId != 0) {
1908                widgetTheme.applyStyle(outValue.resourceId, true);
1909            }
1910
1911            // Now apply the panelMenuListTheme
1912            widgetTheme.resolveAttribute(R.attr.panelMenuListTheme, outValue, true);
1913            if (outValue.resourceId != 0) {
1914                widgetTheme.applyStyle(outValue.resourceId, true);
1915            } else {
1916                widgetTheme.applyStyle(R.style.Theme_AppCompat_CompactMenu, true);
1917            }
1918
1919            context = new ContextThemeWrapper(context, 0);
1920            context.getTheme().setTo(widgetTheme);
1921
1922            listPresenterContext = context;
1923
1924            TypedArray a = context.obtainStyledAttributes(R.styleable.AppCompatTheme);
1925            background = a.getResourceId(
1926                    R.styleable.AppCompatTheme_panelBackground, 0);
1927            windowAnimations = a.getResourceId(
1928                    R.styleable.AppCompatTheme_android_windowAnimationStyle, 0);
1929            a.recycle();
1930        }
1931
1932        void setMenu(MenuBuilder menu) {
1933            if (menu == this.menu) return;
1934
1935            if (this.menu != null) {
1936                this.menu.removeMenuPresenter(listMenuPresenter);
1937            }
1938            this.menu = menu;
1939            if (menu != null) {
1940                if (listMenuPresenter != null) menu.addMenuPresenter(listMenuPresenter);
1941            }
1942        }
1943
1944        MenuView getListMenuView(MenuPresenter.Callback cb) {
1945            if (menu == null) return null;
1946
1947            if (listMenuPresenter == null) {
1948                listMenuPresenter = new ListMenuPresenter(listPresenterContext,
1949                        R.layout.abc_list_menu_item_layout);
1950                listMenuPresenter.setCallback(cb);
1951                menu.addMenuPresenter(listMenuPresenter);
1952            }
1953
1954            MenuView result = listMenuPresenter.getMenuView(decorView);
1955
1956            return result;
1957        }
1958
1959        Parcelable onSaveInstanceState() {
1960            SavedState savedState = new SavedState();
1961            savedState.featureId = featureId;
1962            savedState.isOpen = isOpen;
1963
1964            if (menu != null) {
1965                savedState.menuState = new Bundle();
1966                menu.savePresenterStates(savedState.menuState);
1967            }
1968
1969            return savedState;
1970        }
1971
1972        void onRestoreInstanceState(Parcelable state) {
1973            SavedState savedState = (SavedState) state;
1974            featureId = savedState.featureId;
1975            wasLastOpen = savedState.isOpen;
1976            frozenMenuState = savedState.menuState;
1977
1978            shownPanelView = null;
1979            decorView = null;
1980        }
1981
1982        void applyFrozenState() {
1983            if (menu != null && frozenMenuState != null) {
1984                menu.restorePresenterStates(frozenMenuState);
1985                frozenMenuState = null;
1986            }
1987        }
1988
1989        private static class SavedState implements Parcelable {
1990            int featureId;
1991            boolean isOpen;
1992            Bundle menuState;
1993
1994            public int describeContents() {
1995                return 0;
1996            }
1997
1998            public void writeToParcel(Parcel dest, int flags) {
1999                dest.writeInt(featureId);
2000                dest.writeInt(isOpen ? 1 : 0);
2001
2002                if (isOpen) {
2003                    dest.writeBundle(menuState);
2004                }
2005            }
2006
2007            private static SavedState readFromParcel(Parcel source, ClassLoader loader) {
2008                SavedState savedState = new SavedState();
2009                savedState.featureId = source.readInt();
2010                savedState.isOpen = source.readInt() == 1;
2011
2012                if (savedState.isOpen) {
2013                    savedState.menuState = source.readBundle(loader);
2014                }
2015
2016                return savedState;
2017            }
2018
2019            public static final Parcelable.Creator<SavedState> CREATOR
2020                    = ParcelableCompat.newCreator(
2021                    new ParcelableCompatCreatorCallbacks<SavedState>() {
2022                        @Override
2023                        public SavedState createFromParcel(Parcel in, ClassLoader loader) {
2024                            return readFromParcel(in, loader);
2025                        }
2026
2027                        @Override
2028                        public SavedState[] newArray(int size) {
2029                            return new SavedState[size];
2030                        }
2031                    });
2032        }
2033    }
2034
2035    private class ListMenuDecorView extends ContentFrameLayout {
2036        public ListMenuDecorView(Context context) {
2037            super(context);
2038        }
2039
2040        @Override
2041        public boolean dispatchKeyEvent(KeyEvent event) {
2042            return AppCompatDelegateImplV7.this.dispatchKeyEvent(event)
2043                    || super.dispatchKeyEvent(event);
2044        }
2045
2046        @Override
2047        public boolean onInterceptTouchEvent(MotionEvent event) {
2048            int action = event.getAction();
2049            if (action == MotionEvent.ACTION_DOWN) {
2050                int x = (int) event.getX();
2051                int y = (int) event.getY();
2052                if (isOutOfBounds(x, y)) {
2053                    closePanel(Window.FEATURE_OPTIONS_PANEL);
2054                    return true;
2055                }
2056            }
2057            return super.onInterceptTouchEvent(event);
2058        }
2059
2060        @Override
2061        public void setBackgroundResource(int resid) {
2062            setBackgroundDrawable(AppCompatDrawableManager.get().getDrawable(getContext(), resid));
2063        }
2064
2065        private boolean isOutOfBounds(int x, int y) {
2066            return x < -5 || y < -5 || x > (getWidth() + 5) || y > (getHeight() + 5);
2067        }
2068    }
2069}
2070