1/*
2 *
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *      http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16package com.android.internal.policy.impl;
17
18import static android.view.View.MeasureSpec.AT_MOST;
19import static android.view.View.MeasureSpec.EXACTLY;
20import static android.view.View.MeasureSpec.getMode;
21import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
22import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT;
23import static android.view.WindowManager.LayoutParams.*;
24
25import android.app.SearchManager;
26import android.os.UserHandle;
27import com.android.internal.R;
28import com.android.internal.view.RootViewSurfaceTaker;
29import com.android.internal.view.StandaloneActionMode;
30import com.android.internal.view.menu.ContextMenuBuilder;
31import com.android.internal.view.menu.IconMenuPresenter;
32import com.android.internal.view.menu.ListMenuPresenter;
33import com.android.internal.view.menu.MenuBuilder;
34import com.android.internal.view.menu.MenuDialogHelper;
35import com.android.internal.view.menu.MenuPresenter;
36import com.android.internal.view.menu.MenuView;
37import com.android.internal.widget.ActionBarContextView;
38import com.android.internal.widget.BackgroundFallback;
39import com.android.internal.widget.DecorContentParent;
40import com.android.internal.widget.SwipeDismissLayout;
41
42import android.app.ActivityManager;
43import android.app.KeyguardManager;
44import android.content.Context;
45import android.content.pm.PackageManager;
46import android.content.res.Configuration;
47import android.content.res.Resources.Theme;
48import android.content.res.TypedArray;
49import android.graphics.Canvas;
50import android.graphics.Color;
51import android.graphics.PixelFormat;
52import android.graphics.Rect;
53import android.graphics.drawable.Drawable;
54import android.media.AudioManager;
55import android.media.session.MediaController;
56import android.media.session.MediaSessionLegacyHelper;
57import android.net.Uri;
58import android.os.Bundle;
59import android.os.Handler;
60import android.os.Parcel;
61import android.os.Parcelable;
62import android.os.RemoteException;
63import android.os.ServiceManager;
64import android.transition.Scene;
65import android.transition.Transition;
66import android.transition.TransitionInflater;
67import android.transition.TransitionManager;
68import android.transition.TransitionSet;
69import android.util.AndroidRuntimeException;
70import android.util.DisplayMetrics;
71import android.util.EventLog;
72import android.util.Log;
73import android.util.SparseArray;
74import android.util.TypedValue;
75import android.view.ActionMode;
76import android.view.ContextThemeWrapper;
77import android.view.Display;
78import android.view.Gravity;
79import android.view.IRotationWatcher;
80import android.view.IWindowManager;
81import android.view.InputEvent;
82import android.view.InputQueue;
83import android.view.KeyCharacterMap;
84import android.view.KeyEvent;
85import android.view.LayoutInflater;
86import android.view.Menu;
87import android.view.MenuItem;
88import android.view.MotionEvent;
89import android.view.SurfaceHolder;
90import android.view.View;
91import android.view.ViewConfiguration;
92import android.view.ViewGroup;
93import android.view.ViewManager;
94import android.view.ViewParent;
95import android.view.ViewRootImpl;
96import android.view.ViewStub;
97import android.view.Window;
98import android.view.WindowInsets;
99import android.view.WindowManager;
100import android.view.accessibility.AccessibilityEvent;
101import android.view.accessibility.AccessibilityManager;
102import android.view.animation.Animation;
103import android.view.animation.AnimationUtils;
104import android.widget.FrameLayout;
105import android.widget.ImageView;
106import android.widget.PopupWindow;
107import android.widget.ProgressBar;
108import android.widget.TextView;
109
110import java.lang.ref.WeakReference;
111import java.util.ArrayList;
112
113/**
114 * Android-specific Window.
115 * <p>
116 * todo: need to pull the generic functionality out into a base class
117 * in android.widget.
118 */
119public class PhoneWindow extends Window implements MenuBuilder.Callback {
120
121    private final static String TAG = "PhoneWindow";
122
123    private final static boolean SWEEP_OPEN_MENU = false;
124
125    private final static int DEFAULT_BACKGROUND_FADE_DURATION_MS = 300;
126
127    private static final int CUSTOM_TITLE_COMPATIBLE_FEATURES = DEFAULT_FEATURES |
128            (1 << FEATURE_CUSTOM_TITLE) |
129            (1 << FEATURE_CONTENT_TRANSITIONS) |
130            (1 << FEATURE_ACTIVITY_TRANSITIONS) |
131            (1 << FEATURE_ACTION_MODE_OVERLAY);
132
133    private static final Transition USE_DEFAULT_TRANSITION = new TransitionSet();
134
135    /**
136     * Simple callback used by the context menu and its submenus. The options
137     * menu submenus do not use this (their behavior is more complex).
138     */
139    final DialogMenuCallback mContextMenuCallback = new DialogMenuCallback(FEATURE_CONTEXT_MENU);
140
141    final TypedValue mMinWidthMajor = new TypedValue();
142    final TypedValue mMinWidthMinor = new TypedValue();
143    TypedValue mFixedWidthMajor;
144    TypedValue mFixedWidthMinor;
145    TypedValue mFixedHeightMajor;
146    TypedValue mFixedHeightMinor;
147    TypedValue mOutsetBottom;
148
149    // This is the top-level view of the window, containing the window decor.
150    private DecorView mDecor;
151
152    // This is the view in which the window contents are placed. It is either
153    // mDecor itself, or a child of mDecor where the contents go.
154    private ViewGroup mContentParent;
155
156    private ViewGroup mContentRoot;
157
158    SurfaceHolder.Callback2 mTakeSurfaceCallback;
159
160    InputQueue.Callback mTakeInputQueueCallback;
161
162    private boolean mIsFloating;
163
164    private LayoutInflater mLayoutInflater;
165
166    private TextView mTitleView;
167
168    private DecorContentParent mDecorContentParent;
169    private ActionMenuPresenterCallback mActionMenuPresenterCallback;
170    private PanelMenuPresenterCallback mPanelMenuPresenterCallback;
171
172    private TransitionManager mTransitionManager;
173    private Scene mContentScene;
174
175    // The icon resource has been explicitly set elsewhere
176    // and should not be overwritten with a default.
177    static final int FLAG_RESOURCE_SET_ICON = 1 << 0;
178
179    // The logo resource has been explicitly set elsewhere
180    // and should not be overwritten with a default.
181    static final int FLAG_RESOURCE_SET_LOGO = 1 << 1;
182
183    // The icon resource is currently configured to use the system fallback
184    // as no default was previously specified. Anything can override this.
185    static final int FLAG_RESOURCE_SET_ICON_FALLBACK = 1 << 2;
186
187    int mResourcesSetFlags;
188    int mIconRes;
189    int mLogoRes;
190
191    private DrawableFeatureState[] mDrawables;
192
193    private PanelFeatureState[] mPanels;
194
195    /**
196     * The panel that is prepared or opened (the most recent one if there are
197     * multiple panels). Shortcuts will go to this panel. It gets set in
198     * {@link #preparePanel} and cleared in {@link #closePanel}.
199     */
200    private PanelFeatureState mPreparedPanel;
201
202    /**
203     * The keycode that is currently held down (as a modifier) for chording. If
204     * this is 0, there is no key held down.
205     */
206    private int mPanelChordingKey;
207
208    private ImageView mLeftIconView;
209
210    private ImageView mRightIconView;
211
212    private ProgressBar mCircularProgressBar;
213
214    private ProgressBar mHorizontalProgressBar;
215
216    private int mBackgroundResource = 0;
217    private int mBackgroundFallbackResource = 0;
218
219    private Drawable mBackgroundDrawable;
220
221    private float mElevation;
222
223    /** Whether window content should be clipped to the background outline. */
224    private boolean mClipToOutline;
225
226    private int mFrameResource = 0;
227
228    private int mTextColor = 0;
229    private int mStatusBarColor = 0;
230    private int mNavigationBarColor = 0;
231    private boolean mForcedStatusBarColor = false;
232    private boolean mForcedNavigationBarColor = false;
233
234    private CharSequence mTitle = null;
235
236    private int mTitleColor = 0;
237
238    private boolean mAlwaysReadCloseOnTouchAttr = false;
239
240    private ContextMenuBuilder mContextMenu;
241    private MenuDialogHelper mContextMenuHelper;
242    private boolean mClosingActionMenu;
243
244    private int mVolumeControlStreamType = AudioManager.USE_DEFAULT_STREAM_TYPE;
245    private MediaController mMediaController;
246
247    private AudioManager mAudioManager;
248    private KeyguardManager mKeyguardManager;
249
250    private int mUiOptions = 0;
251
252    private boolean mInvalidatePanelMenuPosted;
253    private int mInvalidatePanelMenuFeatures;
254    private final Runnable mInvalidatePanelMenuRunnable = new Runnable() {
255        @Override public void run() {
256            for (int i = 0; i <= FEATURE_MAX; i++) {
257                if ((mInvalidatePanelMenuFeatures & 1 << i) != 0) {
258                    doInvalidatePanelMenu(i);
259                }
260            }
261            mInvalidatePanelMenuPosted = false;
262            mInvalidatePanelMenuFeatures = 0;
263        }
264    };
265
266    private Transition mEnterTransition = null;
267    private Transition mReturnTransition = USE_DEFAULT_TRANSITION;
268    private Transition mExitTransition = null;
269    private Transition mReenterTransition = USE_DEFAULT_TRANSITION;
270    private Transition mSharedElementEnterTransition = null;
271    private Transition mSharedElementReturnTransition = USE_DEFAULT_TRANSITION;
272    private Transition mSharedElementExitTransition = null;
273    private Transition mSharedElementReenterTransition = USE_DEFAULT_TRANSITION;
274    private Boolean mAllowReturnTransitionOverlap;
275    private Boolean mAllowEnterTransitionOverlap;
276    private long mBackgroundFadeDurationMillis = -1;
277    private Boolean mSharedElementsUseOverlay;
278
279    private Rect mTempRect;
280
281    static class WindowManagerHolder {
282        static final IWindowManager sWindowManager = IWindowManager.Stub.asInterface(
283                ServiceManager.getService("window"));
284    }
285
286    static final RotationWatcher sRotationWatcher = new RotationWatcher();
287
288    public PhoneWindow(Context context) {
289        super(context);
290        mLayoutInflater = LayoutInflater.from(context);
291    }
292
293    @Override
294    public final void setContainer(Window container) {
295        super.setContainer(container);
296    }
297
298    @Override
299    public boolean requestFeature(int featureId) {
300        if (mContentParent != null) {
301            throw new AndroidRuntimeException("requestFeature() must be called before adding content");
302        }
303        final int features = getFeatures();
304        final int newFeatures = features | (1 << featureId);
305        if ((newFeatures & (1 << FEATURE_CUSTOM_TITLE)) != 0 &&
306                (newFeatures & ~CUSTOM_TITLE_COMPATIBLE_FEATURES) != 0) {
307            // Another feature is enabled and the user is trying to enable the custom title feature
308            // or custom title feature is enabled and the user is trying to enable another feature
309            throw new AndroidRuntimeException(
310                    "You cannot combine custom titles with other title features");
311        }
312        if ((features & (1 << FEATURE_NO_TITLE)) != 0 && featureId == FEATURE_ACTION_BAR) {
313            return false; // Ignore. No title dominates.
314        }
315        if ((features & (1 << FEATURE_ACTION_BAR)) != 0 && featureId == FEATURE_NO_TITLE) {
316            // Remove the action bar feature if we have no title. No title dominates.
317            removeFeature(FEATURE_ACTION_BAR);
318        }
319
320        if ((features & (1 << FEATURE_ACTION_BAR)) != 0 && featureId == FEATURE_SWIPE_TO_DISMISS) {
321            throw new AndroidRuntimeException(
322                    "You cannot combine swipe dismissal and the action bar.");
323        }
324        if ((features & (1 << FEATURE_SWIPE_TO_DISMISS)) != 0 && featureId == FEATURE_ACTION_BAR) {
325            throw new AndroidRuntimeException(
326                    "You cannot combine swipe dismissal and the action bar.");
327        }
328
329        if (featureId == FEATURE_INDETERMINATE_PROGRESS &&
330                getContext().getPackageManager().hasSystemFeature(PackageManager.FEATURE_WATCH)) {
331            throw new AndroidRuntimeException("You cannot use indeterminate progress on a watch.");
332        }
333        return super.requestFeature(featureId);
334    }
335
336    @Override
337    public void setUiOptions(int uiOptions) {
338        mUiOptions = uiOptions;
339    }
340
341    @Override
342    public void setUiOptions(int uiOptions, int mask) {
343        mUiOptions = (mUiOptions & ~mask) | (uiOptions & mask);
344    }
345
346    @Override
347    public TransitionManager getTransitionManager() {
348        return mTransitionManager;
349    }
350
351    @Override
352    public void setTransitionManager(TransitionManager tm) {
353        mTransitionManager = tm;
354    }
355
356    @Override
357    public Scene getContentScene() {
358        return mContentScene;
359    }
360
361    @Override
362    public void setContentView(int layoutResID) {
363        // Note: FEATURE_CONTENT_TRANSITIONS may be set in the process of installing the window
364        // decor, when theme attributes and the like are crystalized. Do not check the feature
365        // before this happens.
366        if (mContentParent == null) {
367            installDecor();
368        } else if (!hasFeature(FEATURE_CONTENT_TRANSITIONS)) {
369            mContentParent.removeAllViews();
370        }
371
372        if (hasFeature(FEATURE_CONTENT_TRANSITIONS)) {
373            final Scene newScene = Scene.getSceneForLayout(mContentParent, layoutResID,
374                    getContext());
375            transitionTo(newScene);
376        } else {
377            mLayoutInflater.inflate(layoutResID, mContentParent);
378        }
379        final Callback cb = getCallback();
380        if (cb != null && !isDestroyed()) {
381            cb.onContentChanged();
382        }
383    }
384
385    @Override
386    public void setContentView(View view) {
387        setContentView(view, new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));
388    }
389
390    @Override
391    public void setContentView(View view, ViewGroup.LayoutParams params) {
392        // Note: FEATURE_CONTENT_TRANSITIONS may be set in the process of installing the window
393        // decor, when theme attributes and the like are crystalized. Do not check the feature
394        // before this happens.
395        if (mContentParent == null) {
396            installDecor();
397        } else if (!hasFeature(FEATURE_CONTENT_TRANSITIONS)) {
398            mContentParent.removeAllViews();
399        }
400
401        if (hasFeature(FEATURE_CONTENT_TRANSITIONS)) {
402            view.setLayoutParams(params);
403            final Scene newScene = new Scene(mContentParent, view);
404            transitionTo(newScene);
405        } else {
406            mContentParent.addView(view, params);
407        }
408        final Callback cb = getCallback();
409        if (cb != null && !isDestroyed()) {
410            cb.onContentChanged();
411        }
412    }
413
414    @Override
415    public void addContentView(View view, ViewGroup.LayoutParams params) {
416        if (mContentParent == null) {
417            installDecor();
418        }
419        if (hasFeature(FEATURE_CONTENT_TRANSITIONS)) {
420            // TODO Augment the scenes/transitions API to support this.
421            Log.v(TAG, "addContentView does not support content transitions");
422        }
423        mContentParent.addView(view, params);
424        final Callback cb = getCallback();
425        if (cb != null && !isDestroyed()) {
426            cb.onContentChanged();
427        }
428    }
429
430    private void transitionTo(Scene scene) {
431        if (mContentScene == null) {
432            scene.enter();
433        } else {
434            mTransitionManager.transitionTo(scene);
435        }
436        mContentScene = scene;
437    }
438
439    @Override
440    public View getCurrentFocus() {
441        return mDecor != null ? mDecor.findFocus() : null;
442    }
443
444    @Override
445    public void takeSurface(SurfaceHolder.Callback2 callback) {
446        mTakeSurfaceCallback = callback;
447    }
448
449    public void takeInputQueue(InputQueue.Callback callback) {
450        mTakeInputQueueCallback = callback;
451    }
452
453    @Override
454    public boolean isFloating() {
455        return mIsFloating;
456    }
457
458    /**
459     * Return a LayoutInflater instance that can be used to inflate XML view layout
460     * resources for use in this Window.
461     *
462     * @return LayoutInflater The shared LayoutInflater.
463     */
464    @Override
465    public LayoutInflater getLayoutInflater() {
466        return mLayoutInflater;
467    }
468
469    @Override
470    public void setTitle(CharSequence title) {
471        if (mTitleView != null) {
472            mTitleView.setText(title);
473        } else if (mDecorContentParent != null) {
474            mDecorContentParent.setWindowTitle(title);
475        }
476        mTitle = title;
477    }
478
479    @Override
480    @Deprecated
481    public void setTitleColor(int textColor) {
482        if (mTitleView != null) {
483            mTitleView.setTextColor(textColor);
484        }
485        mTitleColor = textColor;
486    }
487
488    /**
489     * Prepares the panel to either be opened or chorded. This creates the Menu
490     * instance for the panel and populates it via the Activity callbacks.
491     *
492     * @param st The panel state to prepare.
493     * @param event The event that triggered the preparing of the panel.
494     * @return Whether the panel was prepared. If the panel should not be shown,
495     *         returns false.
496     */
497    public final boolean preparePanel(PanelFeatureState st, KeyEvent event) {
498        if (isDestroyed()) {
499            return false;
500        }
501
502        // Already prepared (isPrepared will be reset to false later)
503        if (st.isPrepared) {
504            return true;
505        }
506
507        if ((mPreparedPanel != null) && (mPreparedPanel != st)) {
508            // Another Panel is prepared and possibly open, so close it
509            closePanel(mPreparedPanel, false);
510        }
511
512        final Callback cb = getCallback();
513
514        if (cb != null) {
515            st.createdPanelView = cb.onCreatePanelView(st.featureId);
516        }
517
518        final boolean isActionBarMenu =
519                (st.featureId == FEATURE_OPTIONS_PANEL || st.featureId == FEATURE_ACTION_BAR);
520
521        if (isActionBarMenu && mDecorContentParent != null) {
522            // Enforce ordering guarantees around events so that the action bar never
523            // dispatches menu-related events before the panel is prepared.
524            mDecorContentParent.setMenuPrepared();
525        }
526
527        if (st.createdPanelView == null) {
528            // Init the panel state's menu--return false if init failed
529            if (st.menu == null || st.refreshMenuContent) {
530                if (st.menu == null) {
531                    if (!initializePanelMenu(st) || (st.menu == null)) {
532                        return false;
533                    }
534                }
535
536                if (isActionBarMenu && mDecorContentParent != null) {
537                    if (mActionMenuPresenterCallback == null) {
538                        mActionMenuPresenterCallback = new ActionMenuPresenterCallback();
539                    }
540                    mDecorContentParent.setMenu(st.menu, mActionMenuPresenterCallback);
541                }
542
543                // Call callback, and return if it doesn't want to display menu.
544
545                // Creating the panel menu will involve a lot of manipulation;
546                // don't dispatch change events to presenters until we're done.
547                st.menu.stopDispatchingItemsChanged();
548                if ((cb == null) || !cb.onCreatePanelMenu(st.featureId, st.menu)) {
549                    // Ditch the menu created above
550                    st.setMenu(null);
551
552                    if (isActionBarMenu && mDecorContentParent != null) {
553                        // Don't show it in the action bar either
554                        mDecorContentParent.setMenu(null, mActionMenuPresenterCallback);
555                    }
556
557                    return false;
558                }
559
560                st.refreshMenuContent = false;
561            }
562
563            // Callback and return if the callback does not want to show the menu
564
565            // Preparing the panel menu can involve a lot of manipulation;
566            // don't dispatch change events to presenters until we're done.
567            st.menu.stopDispatchingItemsChanged();
568
569            // Restore action view state before we prepare. This gives apps
570            // an opportunity to override frozen/restored state in onPrepare.
571            if (st.frozenActionViewState != null) {
572                st.menu.restoreActionViewStates(st.frozenActionViewState);
573                st.frozenActionViewState = null;
574            }
575
576            if (!cb.onPreparePanel(st.featureId, st.createdPanelView, st.menu)) {
577                if (isActionBarMenu && mDecorContentParent != null) {
578                    // The app didn't want to show the menu for now but it still exists.
579                    // Clear it out of the action bar.
580                    mDecorContentParent.setMenu(null, mActionMenuPresenterCallback);
581                }
582                st.menu.startDispatchingItemsChanged();
583                return false;
584            }
585
586            // Set the proper keymap
587            KeyCharacterMap kmap = KeyCharacterMap.load(
588                    event != null ? event.getDeviceId() : KeyCharacterMap.VIRTUAL_KEYBOARD);
589            st.qwertyMode = kmap.getKeyboardType() != KeyCharacterMap.NUMERIC;
590            st.menu.setQwertyMode(st.qwertyMode);
591            st.menu.startDispatchingItemsChanged();
592        }
593
594        // Set other state
595        st.isPrepared = true;
596        st.isHandled = false;
597        mPreparedPanel = st;
598
599        return true;
600    }
601
602    @Override
603    public void onConfigurationChanged(Configuration newConfig) {
604        // Action bars handle their own menu state
605        if (mDecorContentParent == null) {
606            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
607            if ((st != null) && (st.menu != null)) {
608                if (st.isOpen) {
609                    // Freeze state
610                    final Bundle state = new Bundle();
611                    if (st.iconMenuPresenter != null) {
612                        st.iconMenuPresenter.saveHierarchyState(state);
613                    }
614                    if (st.listMenuPresenter != null) {
615                        st.listMenuPresenter.saveHierarchyState(state);
616                    }
617
618                    // Remove the menu views since they need to be recreated
619                    // according to the new configuration
620                    clearMenuViews(st);
621
622                    // Re-open the same menu
623                    reopenMenu(false);
624
625                    // Restore state
626                    if (st.iconMenuPresenter != null) {
627                        st.iconMenuPresenter.restoreHierarchyState(state);
628                    }
629                    if (st.listMenuPresenter != null) {
630                        st.listMenuPresenter.restoreHierarchyState(state);
631                    }
632
633                } else {
634                    // Clear menu views so on next menu opening, it will use
635                    // the proper layout
636                    clearMenuViews(st);
637                }
638            }
639        }
640    }
641
642    private static void clearMenuViews(PanelFeatureState st) {
643        // This can be called on config changes, so we should make sure
644        // the views will be reconstructed based on the new orientation, etc.
645
646        // Allow the callback to create a new panel view
647        st.createdPanelView = null;
648
649        // Causes the decor view to be recreated
650        st.refreshDecorView = true;
651
652        st.clearMenuPresenters();
653    }
654
655    @Override
656    public final void openPanel(int featureId, KeyEvent event) {
657        if (featureId == FEATURE_OPTIONS_PANEL && mDecorContentParent != null &&
658                mDecorContentParent.canShowOverflowMenu() &&
659                !ViewConfiguration.get(getContext()).hasPermanentMenuKey()) {
660            mDecorContentParent.showOverflowMenu();
661        } else {
662            openPanel(getPanelState(featureId, true), event);
663        }
664    }
665
666    private void openPanel(final PanelFeatureState st, KeyEvent event) {
667        // System.out.println("Open panel: isOpen=" + st.isOpen);
668
669        // Already open, return
670        if (st.isOpen || isDestroyed()) {
671            return;
672        }
673
674        // Don't open an options panel for honeycomb apps on xlarge devices.
675        // (The app should be using an action bar for menu items.)
676        if (st.featureId == FEATURE_OPTIONS_PANEL) {
677            Context context = getContext();
678            Configuration config = context.getResources().getConfiguration();
679            boolean isXLarge = (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) ==
680                    Configuration.SCREENLAYOUT_SIZE_XLARGE;
681            boolean isHoneycombApp = context.getApplicationInfo().targetSdkVersion >=
682                    android.os.Build.VERSION_CODES.HONEYCOMB;
683
684            if (isXLarge && isHoneycombApp) {
685                return;
686            }
687        }
688
689        Callback cb = getCallback();
690        if ((cb != null) && (!cb.onMenuOpened(st.featureId, st.menu))) {
691            // Callback doesn't want the menu to open, reset any state
692            closePanel(st, true);
693            return;
694        }
695
696        final WindowManager wm = getWindowManager();
697        if (wm == null) {
698            return;
699        }
700
701        // Prepare panel (should have been done before, but just in case)
702        if (!preparePanel(st, event)) {
703            return;
704        }
705
706        int width = WRAP_CONTENT;
707        if (st.decorView == null || st.refreshDecorView) {
708            if (st.decorView == null) {
709                // Initialize the panel decor, this will populate st.decorView
710                if (!initializePanelDecor(st) || (st.decorView == null))
711                    return;
712            } else if (st.refreshDecorView && (st.decorView.getChildCount() > 0)) {
713                // Decor needs refreshing, so remove its views
714                st.decorView.removeAllViews();
715            }
716
717            // This will populate st.shownPanelView
718            if (!initializePanelContent(st) || !st.hasPanelItems()) {
719                return;
720            }
721
722            ViewGroup.LayoutParams lp = st.shownPanelView.getLayoutParams();
723            if (lp == null) {
724                lp = new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
725            }
726
727            int backgroundResId;
728            if (lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
729                // If the contents is fill parent for the width, set the
730                // corresponding background
731                backgroundResId = st.fullBackground;
732                width = MATCH_PARENT;
733            } else {
734                // Otherwise, set the normal panel background
735                backgroundResId = st.background;
736            }
737            st.decorView.setWindowBackground(getContext().getDrawable(
738                    backgroundResId));
739
740            ViewParent shownPanelParent = st.shownPanelView.getParent();
741            if (shownPanelParent != null && shownPanelParent instanceof ViewGroup) {
742                ((ViewGroup) shownPanelParent).removeView(st.shownPanelView);
743            }
744            st.decorView.addView(st.shownPanelView, lp);
745
746            /*
747             * Give focus to the view, if it or one of its children does not
748             * already have it.
749             */
750            if (!st.shownPanelView.hasFocus()) {
751                st.shownPanelView.requestFocus();
752            }
753        } else if (!st.isInListMode()) {
754            width = MATCH_PARENT;
755        } else if (st.createdPanelView != null) {
756            // If we already had a panel view, carry width=MATCH_PARENT through
757            // as we did above when it was created.
758            ViewGroup.LayoutParams lp = st.createdPanelView.getLayoutParams();
759            if (lp != null && lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
760                width = MATCH_PARENT;
761            }
762        }
763
764        st.isHandled = false;
765
766        WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
767                width, WRAP_CONTENT,
768                st.x, st.y, WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG,
769                WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM
770                | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH,
771                st.decorView.mDefaultOpacity);
772
773        if (st.isCompact) {
774            lp.gravity = getOptionsPanelGravity();
775            sRotationWatcher.addWindow(this);
776        } else {
777            lp.gravity = st.gravity;
778        }
779
780        lp.windowAnimations = st.windowAnimations;
781
782        wm.addView(st.decorView, lp);
783        st.isOpen = true;
784        // Log.v(TAG, "Adding main menu to window manager.");
785    }
786
787    @Override
788    public final void closePanel(int featureId) {
789        if (featureId == FEATURE_OPTIONS_PANEL && mDecorContentParent != null &&
790                mDecorContentParent.canShowOverflowMenu() &&
791                !ViewConfiguration.get(getContext()).hasPermanentMenuKey()) {
792            mDecorContentParent.hideOverflowMenu();
793        } else if (featureId == FEATURE_CONTEXT_MENU) {
794            closeContextMenu();
795        } else {
796            closePanel(getPanelState(featureId, true), true);
797        }
798    }
799
800    /**
801     * Closes the given panel.
802     *
803     * @param st The panel to be closed.
804     * @param doCallback Whether to notify the callback that the panel was
805     *            closed. If the panel is in the process of re-opening or
806     *            opening another panel (e.g., menu opening a sub menu), the
807     *            callback should not happen and this variable should be false.
808     *            In addition, this method internally will only perform the
809     *            callback if the panel is open.
810     */
811    public final void closePanel(PanelFeatureState st, boolean doCallback) {
812        // System.out.println("Close panel: isOpen=" + st.isOpen);
813        if (doCallback && st.featureId == FEATURE_OPTIONS_PANEL &&
814                mDecorContentParent != null && mDecorContentParent.isOverflowMenuShowing()) {
815            checkCloseActionMenu(st.menu);
816            return;
817        }
818
819        final ViewManager wm = getWindowManager();
820        if ((wm != null) && st.isOpen) {
821            if (st.decorView != null) {
822                wm.removeView(st.decorView);
823                // Log.v(TAG, "Removing main menu from window manager.");
824                if (st.isCompact) {
825                    sRotationWatcher.removeWindow(this);
826                }
827            }
828
829            if (doCallback) {
830                callOnPanelClosed(st.featureId, st, null);
831            }
832        }
833
834        st.isPrepared = false;
835        st.isHandled = false;
836        st.isOpen = false;
837
838        // This view is no longer shown, so null it out
839        st.shownPanelView = null;
840
841        if (st.isInExpandedMode) {
842            // Next time the menu opens, it should not be in expanded mode, so
843            // force a refresh of the decor
844            st.refreshDecorView = true;
845            st.isInExpandedMode = false;
846        }
847
848        if (mPreparedPanel == st) {
849            mPreparedPanel = null;
850            mPanelChordingKey = 0;
851        }
852    }
853
854    void checkCloseActionMenu(Menu menu) {
855        if (mClosingActionMenu) {
856            return;
857        }
858
859        mClosingActionMenu = true;
860        mDecorContentParent.dismissPopups();
861        Callback cb = getCallback();
862        if (cb != null && !isDestroyed()) {
863            cb.onPanelClosed(FEATURE_ACTION_BAR, menu);
864        }
865        mClosingActionMenu = false;
866    }
867
868    @Override
869    public final void togglePanel(int featureId, KeyEvent event) {
870        PanelFeatureState st = getPanelState(featureId, true);
871        if (st.isOpen) {
872            closePanel(st, true);
873        } else {
874            openPanel(st, event);
875        }
876    }
877
878    @Override
879    public void invalidatePanelMenu(int featureId) {
880        mInvalidatePanelMenuFeatures |= 1 << featureId;
881
882        if (!mInvalidatePanelMenuPosted && mDecor != null) {
883            mDecor.postOnAnimation(mInvalidatePanelMenuRunnable);
884            mInvalidatePanelMenuPosted = true;
885        }
886    }
887
888    void doPendingInvalidatePanelMenu() {
889        if (mInvalidatePanelMenuPosted) {
890            mDecor.removeCallbacks(mInvalidatePanelMenuRunnable);
891            mInvalidatePanelMenuRunnable.run();
892        }
893    }
894
895    void doInvalidatePanelMenu(int featureId) {
896        PanelFeatureState st = getPanelState(featureId, true);
897        Bundle savedActionViewStates = null;
898        if (st.menu != null) {
899            savedActionViewStates = new Bundle();
900            st.menu.saveActionViewStates(savedActionViewStates);
901            if (savedActionViewStates.size() > 0) {
902                st.frozenActionViewState = savedActionViewStates;
903            }
904            // This will be started again when the panel is prepared.
905            st.menu.stopDispatchingItemsChanged();
906            st.menu.clear();
907        }
908        st.refreshMenuContent = true;
909        st.refreshDecorView = true;
910
911        // Prepare the options panel if we have an action bar
912        if ((featureId == FEATURE_ACTION_BAR || featureId == FEATURE_OPTIONS_PANEL)
913                && mDecorContentParent != null) {
914            st = getPanelState(Window.FEATURE_OPTIONS_PANEL, false);
915            if (st != null) {
916                st.isPrepared = false;
917                preparePanel(st, null);
918            }
919        }
920    }
921
922    /**
923     * Called when the panel key is pushed down.
924     * @param featureId The feature ID of the relevant panel (defaults to FEATURE_OPTIONS_PANEL}.
925     * @param event The key event.
926     * @return Whether the key was handled.
927     */
928    public final boolean onKeyDownPanel(int featureId, KeyEvent event) {
929        final int keyCode = event.getKeyCode();
930
931        if (event.getRepeatCount() == 0) {
932            // The panel key was pushed, so set the chording key
933            mPanelChordingKey = keyCode;
934
935            PanelFeatureState st = getPanelState(featureId, true);
936            if (!st.isOpen) {
937                return preparePanel(st, event);
938            }
939        }
940
941        return false;
942    }
943
944    /**
945     * Called when the panel key is released.
946     * @param featureId The feature ID of the relevant panel (defaults to FEATURE_OPTIONS_PANEL}.
947     * @param event The key event.
948     */
949    public final void onKeyUpPanel(int featureId, KeyEvent event) {
950        // The panel key was released, so clear the chording key
951        if (mPanelChordingKey != 0) {
952            mPanelChordingKey = 0;
953
954            if (event.isCanceled() || (mDecor != null && mDecor.mActionMode != null)) {
955                return;
956            }
957
958            boolean playSoundEffect = false;
959            final PanelFeatureState st = getPanelState(featureId, true);
960            if (featureId == FEATURE_OPTIONS_PANEL && mDecorContentParent != null &&
961                    mDecorContentParent.canShowOverflowMenu() &&
962                    !ViewConfiguration.get(getContext()).hasPermanentMenuKey()) {
963                if (!mDecorContentParent.isOverflowMenuShowing()) {
964                    if (!isDestroyed() && preparePanel(st, event)) {
965                        playSoundEffect = mDecorContentParent.showOverflowMenu();
966                    }
967                } else {
968                    playSoundEffect = mDecorContentParent.hideOverflowMenu();
969                }
970            } else {
971                if (st.isOpen || st.isHandled) {
972
973                    // Play the sound effect if the user closed an open menu (and not if
974                    // they just released a menu shortcut)
975                    playSoundEffect = st.isOpen;
976
977                    // Close menu
978                    closePanel(st, true);
979
980                } else if (st.isPrepared) {
981                    boolean show = true;
982                    if (st.refreshMenuContent) {
983                        // Something may have invalidated the menu since we prepared it.
984                        // Re-prepare it to refresh.
985                        st.isPrepared = false;
986                        show = preparePanel(st, event);
987                    }
988
989                    if (show) {
990                        // Write 'menu opened' to event log
991                        EventLog.writeEvent(50001, 0);
992
993                        // Show menu
994                        openPanel(st, event);
995
996                        playSoundEffect = true;
997                    }
998                }
999            }
1000
1001            if (playSoundEffect) {
1002                AudioManager audioManager = (AudioManager) getContext().getSystemService(
1003                        Context.AUDIO_SERVICE);
1004                if (audioManager != null) {
1005                    audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK);
1006                } else {
1007                    Log.w(TAG, "Couldn't get audio manager");
1008                }
1009            }
1010        }
1011    }
1012
1013    @Override
1014    public final void closeAllPanels() {
1015        final ViewManager wm = getWindowManager();
1016        if (wm == null) {
1017            return;
1018        }
1019
1020        final PanelFeatureState[] panels = mPanels;
1021        final int N = panels != null ? panels.length : 0;
1022        for (int i = 0; i < N; i++) {
1023            final PanelFeatureState panel = panels[i];
1024            if (panel != null) {
1025                closePanel(panel, true);
1026            }
1027        }
1028
1029        closeContextMenu();
1030    }
1031
1032    /**
1033     * Closes the context menu. This notifies the menu logic of the close, along
1034     * with dismissing it from the UI.
1035     */
1036    private synchronized void closeContextMenu() {
1037        if (mContextMenu != null) {
1038            mContextMenu.close();
1039            dismissContextMenu();
1040        }
1041    }
1042
1043    /**
1044     * Dismisses just the context menu UI. To close the context menu, use
1045     * {@link #closeContextMenu()}.
1046     */
1047    private synchronized void dismissContextMenu() {
1048        mContextMenu = null;
1049
1050        if (mContextMenuHelper != null) {
1051            mContextMenuHelper.dismiss();
1052            mContextMenuHelper = null;
1053        }
1054    }
1055
1056    @Override
1057    public boolean performPanelShortcut(int featureId, int keyCode, KeyEvent event, int flags) {
1058        return performPanelShortcut(getPanelState(featureId, true), keyCode, event, flags);
1059    }
1060
1061    private boolean performPanelShortcut(PanelFeatureState st, int keyCode, KeyEvent event,
1062            int flags) {
1063        if (event.isSystem() || (st == null)) {
1064            return false;
1065        }
1066
1067        boolean handled = false;
1068
1069        // Only try to perform menu shortcuts if preparePanel returned true (possible false
1070        // return value from application not wanting to show the menu).
1071        if ((st.isPrepared || preparePanel(st, event)) && st.menu != null) {
1072            // The menu is prepared now, perform the shortcut on it
1073            handled = st.menu.performShortcut(keyCode, event, flags);
1074        }
1075
1076        if (handled) {
1077            // Mark as handled
1078            st.isHandled = true;
1079
1080            // Only close down the menu if we don't have an action bar keeping it open.
1081            if ((flags & Menu.FLAG_PERFORM_NO_CLOSE) == 0 && mDecorContentParent == null) {
1082                closePanel(st, true);
1083            }
1084        }
1085
1086        return handled;
1087    }
1088
1089    @Override
1090    public boolean performPanelIdentifierAction(int featureId, int id, int flags) {
1091
1092        PanelFeatureState st = getPanelState(featureId, true);
1093        if (!preparePanel(st, new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MENU))) {
1094            return false;
1095        }
1096        if (st.menu == null) {
1097            return false;
1098        }
1099
1100        boolean res = st.menu.performIdentifierAction(id, flags);
1101
1102        // Only close down the menu if we don't have an action bar keeping it open.
1103        if (mDecorContentParent == null) {
1104            closePanel(st, true);
1105        }
1106
1107        return res;
1108    }
1109
1110    public PanelFeatureState findMenuPanel(Menu menu) {
1111        final PanelFeatureState[] panels = mPanels;
1112        final int N = panels != null ? panels.length : 0;
1113        for (int i = 0; i < N; i++) {
1114            final PanelFeatureState panel = panels[i];
1115            if (panel != null && panel.menu == menu) {
1116                return panel;
1117            }
1118        }
1119        return null;
1120    }
1121
1122    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
1123        final Callback cb = getCallback();
1124        if (cb != null && !isDestroyed()) {
1125            final PanelFeatureState panel = findMenuPanel(menu.getRootMenu());
1126            if (panel != null) {
1127                return cb.onMenuItemSelected(panel.featureId, item);
1128            }
1129        }
1130        return false;
1131    }
1132
1133    public void onMenuModeChange(MenuBuilder menu) {
1134        reopenMenu(true);
1135    }
1136
1137    private void reopenMenu(boolean toggleMenuMode) {
1138        if (mDecorContentParent != null && mDecorContentParent.canShowOverflowMenu() &&
1139                (!ViewConfiguration.get(getContext()).hasPermanentMenuKey() ||
1140                        mDecorContentParent.isOverflowMenuShowPending())) {
1141            final Callback cb = getCallback();
1142            if (!mDecorContentParent.isOverflowMenuShowing() || !toggleMenuMode) {
1143                if (cb != null && !isDestroyed()) {
1144                    // If we have a menu invalidation pending, do it now.
1145                    if (mInvalidatePanelMenuPosted &&
1146                            (mInvalidatePanelMenuFeatures & (1 << FEATURE_OPTIONS_PANEL)) != 0) {
1147                        mDecor.removeCallbacks(mInvalidatePanelMenuRunnable);
1148                        mInvalidatePanelMenuRunnable.run();
1149                    }
1150
1151                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
1152
1153                    // If we don't have a menu or we're waiting for a full content refresh,
1154                    // forget it. This is a lingering event that no longer matters.
1155                    if (st.menu != null && !st.refreshMenuContent &&
1156                            cb.onPreparePanel(FEATURE_OPTIONS_PANEL, st.createdPanelView, st.menu)) {
1157                        cb.onMenuOpened(FEATURE_ACTION_BAR, st.menu);
1158                        mDecorContentParent.showOverflowMenu();
1159                    }
1160                }
1161            } else {
1162                mDecorContentParent.hideOverflowMenu();
1163                if (cb != null && !isDestroyed()) {
1164                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
1165                    cb.onPanelClosed(FEATURE_ACTION_BAR, st.menu);
1166                }
1167            }
1168            return;
1169        }
1170
1171        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
1172
1173        // Save the future expanded mode state since closePanel will reset it
1174        boolean newExpandedMode = toggleMenuMode ? !st.isInExpandedMode : st.isInExpandedMode;
1175
1176        st.refreshDecorView = true;
1177        closePanel(st, false);
1178
1179        // Set the expanded mode state
1180        st.isInExpandedMode = newExpandedMode;
1181
1182        openPanel(st, null);
1183    }
1184
1185    /**
1186     * Initializes the menu associated with the given panel feature state. You
1187     * must at the very least set PanelFeatureState.menu to the Menu to be
1188     * associated with the given panel state. The default implementation creates
1189     * a new menu for the panel state.
1190     *
1191     * @param st The panel whose menu is being initialized.
1192     * @return Whether the initialization was successful.
1193     */
1194    protected boolean initializePanelMenu(final PanelFeatureState st) {
1195        Context context = getContext();
1196
1197        // If we have an action bar, initialize the menu with the right theme.
1198        if ((st.featureId == FEATURE_OPTIONS_PANEL || st.featureId == FEATURE_ACTION_BAR) &&
1199                mDecorContentParent != null) {
1200            final TypedValue outValue = new TypedValue();
1201            final Theme baseTheme = context.getTheme();
1202            baseTheme.resolveAttribute(R.attr.actionBarTheme, outValue, true);
1203
1204            Theme widgetTheme = null;
1205            if (outValue.resourceId != 0) {
1206                widgetTheme = context.getResources().newTheme();
1207                widgetTheme.setTo(baseTheme);
1208                widgetTheme.applyStyle(outValue.resourceId, true);
1209                widgetTheme.resolveAttribute(
1210                        R.attr.actionBarWidgetTheme, outValue, true);
1211            } else {
1212                baseTheme.resolveAttribute(
1213                        R.attr.actionBarWidgetTheme, outValue, true);
1214            }
1215
1216            if (outValue.resourceId != 0) {
1217                if (widgetTheme == null) {
1218                    widgetTheme = context.getResources().newTheme();
1219                    widgetTheme.setTo(baseTheme);
1220                }
1221                widgetTheme.applyStyle(outValue.resourceId, true);
1222            }
1223
1224            if (widgetTheme != null) {
1225                context = new ContextThemeWrapper(context, 0);
1226                context.getTheme().setTo(widgetTheme);
1227            }
1228        }
1229
1230        final MenuBuilder menu = new MenuBuilder(context);
1231        menu.setCallback(this);
1232        st.setMenu(menu);
1233
1234        return true;
1235    }
1236
1237    /**
1238     * Perform initial setup of a panel. This should at the very least set the
1239     * style information in the PanelFeatureState and must set
1240     * PanelFeatureState.decor to the panel's window decor view.
1241     *
1242     * @param st The panel being initialized.
1243     */
1244    protected boolean initializePanelDecor(PanelFeatureState st) {
1245        st.decorView = new DecorView(getContext(), st.featureId);
1246        st.gravity = Gravity.CENTER | Gravity.BOTTOM;
1247        st.setStyle(getContext());
1248        TypedArray a = getContext().obtainStyledAttributes(null,
1249                R.styleable.Window, 0, st.listPresenterTheme);
1250        final float elevation = a.getDimension(R.styleable.Window_windowElevation, 0);
1251        if (elevation != 0) {
1252            st.decorView.setElevation(elevation);
1253        }
1254        a.recycle();
1255
1256        return true;
1257    }
1258
1259    /**
1260     * Determine the gravity value for the options panel. This can
1261     * differ in compact mode.
1262     *
1263     * @return gravity value to use for the panel window
1264     */
1265    private int getOptionsPanelGravity() {
1266        try {
1267            return WindowManagerHolder.sWindowManager.getPreferredOptionsPanelGravity();
1268        } catch (RemoteException ex) {
1269            Log.e(TAG, "Couldn't getOptionsPanelGravity; using default", ex);
1270            return Gravity.CENTER | Gravity.BOTTOM;
1271        }
1272    }
1273
1274    void onOptionsPanelRotationChanged() {
1275        final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
1276        if (st == null) return;
1277
1278        final WindowManager.LayoutParams lp = st.decorView != null ?
1279                (WindowManager.LayoutParams) st.decorView.getLayoutParams() : null;
1280        if (lp != null) {
1281            lp.gravity = getOptionsPanelGravity();
1282            final ViewManager wm = getWindowManager();
1283            if (wm != null) {
1284                wm.updateViewLayout(st.decorView, lp);
1285            }
1286        }
1287    }
1288
1289    /**
1290     * Initializes the panel associated with the panel feature state. You must
1291     * at the very least set PanelFeatureState.panel to the View implementing
1292     * its contents. The default implementation gets the panel from the menu.
1293     *
1294     * @param st The panel state being initialized.
1295     * @return Whether the initialization was successful.
1296     */
1297    protected boolean initializePanelContent(PanelFeatureState st) {
1298        if (st.createdPanelView != null) {
1299            st.shownPanelView = st.createdPanelView;
1300            return true;
1301        }
1302
1303        if (st.menu == null) {
1304            return false;
1305        }
1306
1307        if (mPanelMenuPresenterCallback == null) {
1308            mPanelMenuPresenterCallback = new PanelMenuPresenterCallback();
1309        }
1310
1311        MenuView menuView = st.isInListMode()
1312                ? st.getListMenuView(getContext(), mPanelMenuPresenterCallback)
1313                : st.getIconMenuView(getContext(), mPanelMenuPresenterCallback);
1314
1315        st.shownPanelView = (View) menuView;
1316
1317        if (st.shownPanelView != null) {
1318            // Use the menu View's default animations if it has any
1319            final int defaultAnimations = menuView.getWindowAnimations();
1320            if (defaultAnimations != 0) {
1321                st.windowAnimations = defaultAnimations;
1322            }
1323            return true;
1324        } else {
1325            return false;
1326        }
1327    }
1328
1329    @Override
1330    public boolean performContextMenuIdentifierAction(int id, int flags) {
1331        return (mContextMenu != null) ? mContextMenu.performIdentifierAction(id, flags) : false;
1332    }
1333
1334    @Override
1335    public final void setBackgroundDrawable(Drawable drawable) {
1336        if (drawable != mBackgroundDrawable || mBackgroundResource != 0) {
1337            mBackgroundResource = 0;
1338            mBackgroundDrawable = drawable;
1339            if (mDecor != null) {
1340                mDecor.setWindowBackground(drawable);
1341            }
1342            if (mBackgroundFallbackResource != 0) {
1343                mDecor.setBackgroundFallback(drawable != null ? 0 : mBackgroundFallbackResource);
1344            }
1345        }
1346    }
1347
1348    @Override
1349    public final void setFeatureDrawableResource(int featureId, int resId) {
1350        if (resId != 0) {
1351            DrawableFeatureState st = getDrawableState(featureId, true);
1352            if (st.resid != resId) {
1353                st.resid = resId;
1354                st.uri = null;
1355                st.local = getContext().getDrawable(resId);
1356                updateDrawable(featureId, st, false);
1357            }
1358        } else {
1359            setFeatureDrawable(featureId, null);
1360        }
1361    }
1362
1363    @Override
1364    public final void setFeatureDrawableUri(int featureId, Uri uri) {
1365        if (uri != null) {
1366            DrawableFeatureState st = getDrawableState(featureId, true);
1367            if (st.uri == null || !st.uri.equals(uri)) {
1368                st.resid = 0;
1369                st.uri = uri;
1370                st.local = loadImageURI(uri);
1371                updateDrawable(featureId, st, false);
1372            }
1373        } else {
1374            setFeatureDrawable(featureId, null);
1375        }
1376    }
1377
1378    @Override
1379    public final void setFeatureDrawable(int featureId, Drawable drawable) {
1380        DrawableFeatureState st = getDrawableState(featureId, true);
1381        st.resid = 0;
1382        st.uri = null;
1383        if (st.local != drawable) {
1384            st.local = drawable;
1385            updateDrawable(featureId, st, false);
1386        }
1387    }
1388
1389    @Override
1390    public void setFeatureDrawableAlpha(int featureId, int alpha) {
1391        DrawableFeatureState st = getDrawableState(featureId, true);
1392        if (st.alpha != alpha) {
1393            st.alpha = alpha;
1394            updateDrawable(featureId, st, false);
1395        }
1396    }
1397
1398    protected final void setFeatureDefaultDrawable(int featureId, Drawable drawable) {
1399        DrawableFeatureState st = getDrawableState(featureId, true);
1400        if (st.def != drawable) {
1401            st.def = drawable;
1402            updateDrawable(featureId, st, false);
1403        }
1404    }
1405
1406    @Override
1407    public final void setFeatureInt(int featureId, int value) {
1408        // XXX Should do more management (as with drawable features) to
1409        // deal with interactions between multiple window policies.
1410        updateInt(featureId, value, false);
1411    }
1412
1413    /**
1414     * Update the state of a drawable feature. This should be called, for every
1415     * drawable feature supported, as part of onActive(), to make sure that the
1416     * contents of a containing window is properly updated.
1417     *
1418     * @see #onActive
1419     * @param featureId The desired drawable feature to change.
1420     * @param fromActive Always true when called from onActive().
1421     */
1422    protected final void updateDrawable(int featureId, boolean fromActive) {
1423        final DrawableFeatureState st = getDrawableState(featureId, false);
1424        if (st != null) {
1425            updateDrawable(featureId, st, fromActive);
1426        }
1427    }
1428
1429    /**
1430     * Called when a Drawable feature changes, for the window to update its
1431     * graphics.
1432     *
1433     * @param featureId The feature being changed.
1434     * @param drawable The new Drawable to show, or null if none.
1435     * @param alpha The new alpha blending of the Drawable.
1436     */
1437    protected void onDrawableChanged(int featureId, Drawable drawable, int alpha) {
1438        ImageView view;
1439        if (featureId == FEATURE_LEFT_ICON) {
1440            view = getLeftIconView();
1441        } else if (featureId == FEATURE_RIGHT_ICON) {
1442            view = getRightIconView();
1443        } else {
1444            return;
1445        }
1446
1447        if (drawable != null) {
1448            drawable.setAlpha(alpha);
1449            view.setImageDrawable(drawable);
1450            view.setVisibility(View.VISIBLE);
1451        } else {
1452            view.setVisibility(View.GONE);
1453        }
1454    }
1455
1456    /**
1457     * Called when an int feature changes, for the window to update its
1458     * graphics.
1459     *
1460     * @param featureId The feature being changed.
1461     * @param value The new integer value.
1462     */
1463    protected void onIntChanged(int featureId, int value) {
1464        if (featureId == FEATURE_PROGRESS || featureId == FEATURE_INDETERMINATE_PROGRESS) {
1465            updateProgressBars(value);
1466        } else if (featureId == FEATURE_CUSTOM_TITLE) {
1467            FrameLayout titleContainer = (FrameLayout) findViewById(R.id.title_container);
1468            if (titleContainer != null) {
1469                mLayoutInflater.inflate(value, titleContainer);
1470            }
1471        }
1472    }
1473
1474    /**
1475     * Updates the progress bars that are shown in the title bar.
1476     *
1477     * @param value Can be one of {@link Window#PROGRESS_VISIBILITY_ON},
1478     *            {@link Window#PROGRESS_VISIBILITY_OFF},
1479     *            {@link Window#PROGRESS_INDETERMINATE_ON},
1480     *            {@link Window#PROGRESS_INDETERMINATE_OFF}, or a value
1481     *            starting at {@link Window#PROGRESS_START} through
1482     *            {@link Window#PROGRESS_END} for setting the default
1483     *            progress (if {@link Window#PROGRESS_END} is given,
1484     *            the progress bar widgets in the title will be hidden after an
1485     *            animation), a value between
1486     *            {@link Window#PROGRESS_SECONDARY_START} -
1487     *            {@link Window#PROGRESS_SECONDARY_END} for the
1488     *            secondary progress (if
1489     *            {@link Window#PROGRESS_SECONDARY_END} is given, the
1490     *            progress bar widgets will still be shown with the secondary
1491     *            progress bar will be completely filled in.)
1492     */
1493    private void updateProgressBars(int value) {
1494        ProgressBar circularProgressBar = getCircularProgressBar(true);
1495        ProgressBar horizontalProgressBar = getHorizontalProgressBar(true);
1496
1497        final int features = getLocalFeatures();
1498        if (value == PROGRESS_VISIBILITY_ON) {
1499            if ((features & (1 << FEATURE_PROGRESS)) != 0) {
1500                if (horizontalProgressBar != null) {
1501                    int level = horizontalProgressBar.getProgress();
1502                    int visibility = (horizontalProgressBar.isIndeterminate() || level < 10000) ?
1503                            View.VISIBLE : View.INVISIBLE;
1504                    horizontalProgressBar.setVisibility(visibility);
1505                } else {
1506                    Log.e(TAG, "Horizontal progress bar not located in current window decor");
1507                }
1508            }
1509            if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
1510                if (circularProgressBar != null) {
1511                    circularProgressBar.setVisibility(View.VISIBLE);
1512                } else {
1513                    Log.e(TAG, "Circular progress bar not located in current window decor");
1514                }
1515            }
1516        } else if (value == PROGRESS_VISIBILITY_OFF) {
1517            if ((features & (1 << FEATURE_PROGRESS)) != 0) {
1518                if (horizontalProgressBar != null) {
1519                    horizontalProgressBar.setVisibility(View.GONE);
1520                } else {
1521                    Log.e(TAG, "Horizontal progress bar not located in current window decor");
1522                }
1523            }
1524            if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
1525                if (circularProgressBar != null) {
1526                    circularProgressBar.setVisibility(View.GONE);
1527                } else {
1528                    Log.e(TAG, "Circular progress bar not located in current window decor");
1529                }
1530            }
1531        } else if (value == PROGRESS_INDETERMINATE_ON) {
1532            if (horizontalProgressBar != null) {
1533                horizontalProgressBar.setIndeterminate(true);
1534            } else {
1535                Log.e(TAG, "Horizontal progress bar not located in current window decor");
1536            }
1537        } else if (value == PROGRESS_INDETERMINATE_OFF) {
1538            if (horizontalProgressBar != null) {
1539                horizontalProgressBar.setIndeterminate(false);
1540            } else {
1541                Log.e(TAG, "Horizontal progress bar not located in current window decor");
1542            }
1543        } else if (PROGRESS_START <= value && value <= PROGRESS_END) {
1544            // We want to set the progress value before testing for visibility
1545            // so that when the progress bar becomes visible again, it has the
1546            // correct level.
1547            if (horizontalProgressBar != null) {
1548                horizontalProgressBar.setProgress(value - PROGRESS_START);
1549            } else {
1550                Log.e(TAG, "Horizontal progress bar not located in current window decor");
1551            }
1552
1553            if (value < PROGRESS_END) {
1554                showProgressBars(horizontalProgressBar, circularProgressBar);
1555            } else {
1556                hideProgressBars(horizontalProgressBar, circularProgressBar);
1557            }
1558        } else if (PROGRESS_SECONDARY_START <= value && value <= PROGRESS_SECONDARY_END) {
1559            if (horizontalProgressBar != null) {
1560                horizontalProgressBar.setSecondaryProgress(value - PROGRESS_SECONDARY_START);
1561            } else {
1562                Log.e(TAG, "Horizontal progress bar not located in current window decor");
1563            }
1564
1565            showProgressBars(horizontalProgressBar, circularProgressBar);
1566        }
1567
1568    }
1569
1570    private void showProgressBars(ProgressBar horizontalProgressBar, ProgressBar spinnyProgressBar) {
1571        final int features = getLocalFeatures();
1572        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0 &&
1573                spinnyProgressBar != null && spinnyProgressBar.getVisibility() == View.INVISIBLE) {
1574            spinnyProgressBar.setVisibility(View.VISIBLE);
1575        }
1576        // Only show the progress bars if the primary progress is not complete
1577        if ((features & (1 << FEATURE_PROGRESS)) != 0 && horizontalProgressBar != null &&
1578                horizontalProgressBar.getProgress() < 10000) {
1579            horizontalProgressBar.setVisibility(View.VISIBLE);
1580        }
1581    }
1582
1583    private void hideProgressBars(ProgressBar horizontalProgressBar, ProgressBar spinnyProgressBar) {
1584        final int features = getLocalFeatures();
1585        Animation anim = AnimationUtils.loadAnimation(getContext(), R.anim.fade_out);
1586        anim.setDuration(1000);
1587        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0 &&
1588                spinnyProgressBar != null &&
1589                spinnyProgressBar.getVisibility() == View.VISIBLE) {
1590            spinnyProgressBar.startAnimation(anim);
1591            spinnyProgressBar.setVisibility(View.INVISIBLE);
1592        }
1593        if ((features & (1 << FEATURE_PROGRESS)) != 0 && horizontalProgressBar != null &&
1594                horizontalProgressBar.getVisibility() == View.VISIBLE) {
1595            horizontalProgressBar.startAnimation(anim);
1596            horizontalProgressBar.setVisibility(View.INVISIBLE);
1597        }
1598    }
1599
1600    @Override
1601    public void setIcon(int resId) {
1602        mIconRes = resId;
1603        mResourcesSetFlags |= FLAG_RESOURCE_SET_ICON;
1604        mResourcesSetFlags &= ~FLAG_RESOURCE_SET_ICON_FALLBACK;
1605        if (mDecorContentParent != null) {
1606            mDecorContentParent.setIcon(resId);
1607        }
1608    }
1609
1610    @Override
1611    public void setDefaultIcon(int resId) {
1612        if ((mResourcesSetFlags & FLAG_RESOURCE_SET_ICON) != 0) {
1613            return;
1614        }
1615        mIconRes = resId;
1616        if (mDecorContentParent != null && (!mDecorContentParent.hasIcon() ||
1617                (mResourcesSetFlags & FLAG_RESOURCE_SET_ICON_FALLBACK) != 0)) {
1618            if (resId != 0) {
1619                mDecorContentParent.setIcon(resId);
1620                mResourcesSetFlags &= ~FLAG_RESOURCE_SET_ICON_FALLBACK;
1621            } else {
1622                mDecorContentParent.setIcon(
1623                        getContext().getPackageManager().getDefaultActivityIcon());
1624                mResourcesSetFlags |= FLAG_RESOURCE_SET_ICON_FALLBACK;
1625            }
1626        }
1627    }
1628
1629    @Override
1630    public void setLogo(int resId) {
1631        mLogoRes = resId;
1632        mResourcesSetFlags |= FLAG_RESOURCE_SET_LOGO;
1633        if (mDecorContentParent != null) {
1634            mDecorContentParent.setLogo(resId);
1635        }
1636    }
1637
1638    @Override
1639    public void setDefaultLogo(int resId) {
1640        if ((mResourcesSetFlags & FLAG_RESOURCE_SET_LOGO) != 0) {
1641            return;
1642        }
1643        mLogoRes = resId;
1644        if (mDecorContentParent != null && !mDecorContentParent.hasLogo()) {
1645            mDecorContentParent.setLogo(resId);
1646        }
1647    }
1648
1649    @Override
1650    public void setLocalFocus(boolean hasFocus, boolean inTouchMode) {
1651        getViewRootImpl().windowFocusChanged(hasFocus, inTouchMode);
1652
1653    }
1654
1655    @Override
1656    public void injectInputEvent(InputEvent event) {
1657        getViewRootImpl().dispatchInputEvent(event);
1658    }
1659
1660    private ViewRootImpl getViewRootImpl() {
1661        if (mDecor != null) {
1662            ViewRootImpl viewRootImpl = mDecor.getViewRootImpl();
1663            if (viewRootImpl != null) {
1664                return viewRootImpl;
1665            }
1666        }
1667        throw new IllegalStateException("view not added");
1668    }
1669
1670    /**
1671     * Request that key events come to this activity. Use this if your activity
1672     * has no views with focus, but the activity still wants a chance to process
1673     * key events.
1674     */
1675    @Override
1676    public void takeKeyEvents(boolean get) {
1677        mDecor.setFocusable(get);
1678    }
1679
1680    @Override
1681    public boolean superDispatchKeyEvent(KeyEvent event) {
1682        return mDecor.superDispatchKeyEvent(event);
1683    }
1684
1685    @Override
1686    public boolean superDispatchKeyShortcutEvent(KeyEvent event) {
1687        return mDecor.superDispatchKeyShortcutEvent(event);
1688    }
1689
1690    @Override
1691    public boolean superDispatchTouchEvent(MotionEvent event) {
1692        return mDecor.superDispatchTouchEvent(event);
1693    }
1694
1695    @Override
1696    public boolean superDispatchTrackballEvent(MotionEvent event) {
1697        return mDecor.superDispatchTrackballEvent(event);
1698    }
1699
1700    @Override
1701    public boolean superDispatchGenericMotionEvent(MotionEvent event) {
1702        return mDecor.superDispatchGenericMotionEvent(event);
1703    }
1704
1705    /**
1706     * A key was pressed down and not handled by anything else in the window.
1707     *
1708     * @see #onKeyUp
1709     * @see android.view.KeyEvent
1710     */
1711    protected boolean onKeyDown(int featureId, int keyCode, KeyEvent event) {
1712        /* ****************************************************************************
1713         * HOW TO DECIDE WHERE YOUR KEY HANDLING GOES.
1714         *
1715         * If your key handling must happen before the app gets a crack at the event,
1716         * it goes in PhoneWindowManager.
1717         *
1718         * If your key handling should happen in all windows, and does not depend on
1719         * the state of the current application, other than that the current
1720         * application can override the behavior by handling the event itself, it
1721         * should go in PhoneFallbackEventHandler.
1722         *
1723         * Only if your handling depends on the window, and the fact that it has
1724         * a DecorView, should it go here.
1725         * ****************************************************************************/
1726
1727        final KeyEvent.DispatcherState dispatcher =
1728                mDecor != null ? mDecor.getKeyDispatcherState() : null;
1729        //Log.i(TAG, "Key down: repeat=" + event.getRepeatCount()
1730        //        + " flags=0x" + Integer.toHexString(event.getFlags()));
1731
1732        switch (keyCode) {
1733            case KeyEvent.KEYCODE_VOLUME_UP:
1734            case KeyEvent.KEYCODE_VOLUME_DOWN: {
1735                int direction = keyCode == KeyEvent.KEYCODE_VOLUME_UP ? AudioManager.ADJUST_RAISE
1736                        : AudioManager.ADJUST_LOWER;
1737                // If we have a session send it the volume command, otherwise
1738                // use the suggested stream.
1739                if (mMediaController != null) {
1740                    mMediaController.adjustVolume(direction, AudioManager.FLAG_SHOW_UI);
1741                } else {
1742                    MediaSessionLegacyHelper.getHelper(getContext()).sendAdjustVolumeBy(
1743                            mVolumeControlStreamType, direction,
1744                            AudioManager.FLAG_SHOW_UI | AudioManager.FLAG_VIBRATE);
1745                }
1746                return true;
1747            }
1748            case KeyEvent.KEYCODE_VOLUME_MUTE: {
1749                getAudioManager().handleKeyDown(event, mVolumeControlStreamType);
1750                return true;
1751            }
1752            // These are all the recognized media key codes in
1753            // KeyEvent.isMediaKey()
1754            case KeyEvent.KEYCODE_MEDIA_PLAY:
1755            case KeyEvent.KEYCODE_MEDIA_PAUSE:
1756            case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
1757            case KeyEvent.KEYCODE_MUTE:
1758            case KeyEvent.KEYCODE_HEADSETHOOK:
1759            case KeyEvent.KEYCODE_MEDIA_STOP:
1760            case KeyEvent.KEYCODE_MEDIA_NEXT:
1761            case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
1762            case KeyEvent.KEYCODE_MEDIA_REWIND:
1763            case KeyEvent.KEYCODE_MEDIA_RECORD:
1764            case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: {
1765                if (mMediaController != null) {
1766                    if (mMediaController.dispatchMediaButtonEvent(event)) {
1767                        return true;
1768                    }
1769                }
1770                return false;
1771            }
1772
1773            case KeyEvent.KEYCODE_MENU: {
1774                onKeyDownPanel((featureId < 0) ? FEATURE_OPTIONS_PANEL : featureId, event);
1775                return true;
1776            }
1777
1778            case KeyEvent.KEYCODE_BACK: {
1779                if (event.getRepeatCount() > 0) break;
1780                if (featureId < 0) break;
1781                // Currently don't do anything with long press.
1782                if (dispatcher != null) {
1783                    dispatcher.startTracking(event, this);
1784                }
1785                return true;
1786            }
1787
1788        }
1789
1790        return false;
1791    }
1792
1793    private KeyguardManager getKeyguardManager() {
1794        if (mKeyguardManager == null) {
1795            mKeyguardManager = (KeyguardManager) getContext().getSystemService(
1796                    Context.KEYGUARD_SERVICE);
1797        }
1798        return mKeyguardManager;
1799    }
1800
1801    AudioManager getAudioManager() {
1802        if (mAudioManager == null) {
1803            mAudioManager = (AudioManager)getContext().getSystemService(Context.AUDIO_SERVICE);
1804        }
1805        return mAudioManager;
1806    }
1807
1808    /**
1809     * A key was released and not handled by anything else in the window.
1810     *
1811     * @see #onKeyDown
1812     * @see android.view.KeyEvent
1813     */
1814    protected boolean onKeyUp(int featureId, int keyCode, KeyEvent event) {
1815        final KeyEvent.DispatcherState dispatcher =
1816                mDecor != null ? mDecor.getKeyDispatcherState() : null;
1817        if (dispatcher != null) {
1818            dispatcher.handleUpEvent(event);
1819        }
1820        //Log.i(TAG, "Key up: repeat=" + event.getRepeatCount()
1821        //        + " flags=0x" + Integer.toHexString(event.getFlags()));
1822
1823        switch (keyCode) {
1824            case KeyEvent.KEYCODE_VOLUME_UP:
1825            case KeyEvent.KEYCODE_VOLUME_DOWN: {
1826                // If we have a session send it the volume command, otherwise
1827                // use the suggested stream.
1828                if (mMediaController != null) {
1829                    mMediaController.adjustVolume(0, AudioManager.FLAG_PLAY_SOUND
1830                            | AudioManager.FLAG_VIBRATE);
1831                } else {
1832                    MediaSessionLegacyHelper.getHelper(getContext()).sendAdjustVolumeBy(
1833                            mVolumeControlStreamType, 0,
1834                            AudioManager.FLAG_PLAY_SOUND | AudioManager.FLAG_VIBRATE);
1835                }
1836                return true;
1837            }
1838            case KeyEvent.KEYCODE_VOLUME_MUTE: {
1839                // Similar code is in PhoneFallbackEventHandler in case the window
1840                // doesn't have one of these.  In this case, we execute it here and
1841                // eat the event instead, because we have mVolumeControlStreamType
1842                // and they don't.
1843                getAudioManager().handleKeyUp(event, mVolumeControlStreamType);
1844                return true;
1845            }
1846            // These are all the recognized media key codes in
1847            // KeyEvent.isMediaKey()
1848            case KeyEvent.KEYCODE_MEDIA_PLAY:
1849            case KeyEvent.KEYCODE_MEDIA_PAUSE:
1850            case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
1851            case KeyEvent.KEYCODE_MUTE:
1852            case KeyEvent.KEYCODE_HEADSETHOOK:
1853            case KeyEvent.KEYCODE_MEDIA_STOP:
1854            case KeyEvent.KEYCODE_MEDIA_NEXT:
1855            case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
1856            case KeyEvent.KEYCODE_MEDIA_REWIND:
1857            case KeyEvent.KEYCODE_MEDIA_RECORD:
1858            case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: {
1859                if (mMediaController != null) {
1860                    if (mMediaController.dispatchMediaButtonEvent(event)) {
1861                        return true;
1862                    }
1863                }
1864                return false;
1865            }
1866
1867            case KeyEvent.KEYCODE_MENU: {
1868                onKeyUpPanel(featureId < 0 ? FEATURE_OPTIONS_PANEL : featureId,
1869                        event);
1870                return true;
1871            }
1872
1873            case KeyEvent.KEYCODE_BACK: {
1874                if (featureId < 0) break;
1875                if (event.isTracking() && !event.isCanceled()) {
1876                    if (featureId == FEATURE_OPTIONS_PANEL) {
1877                        PanelFeatureState st = getPanelState(featureId, false);
1878                        if (st != null && st.isInExpandedMode) {
1879                            // If the user is in an expanded menu and hits back, it
1880                            // should go back to the icon menu
1881                            reopenMenu(true);
1882                            return true;
1883                        }
1884                    }
1885                    closePanel(featureId);
1886                    return true;
1887                }
1888                break;
1889            }
1890
1891            case KeyEvent.KEYCODE_SEARCH: {
1892                /*
1893                 * Do this in onKeyUp since the Search key is also used for
1894                 * chording quick launch shortcuts.
1895                 */
1896                if (getKeyguardManager().inKeyguardRestrictedInputMode()) {
1897                    break;
1898                }
1899                if (event.isTracking() && !event.isCanceled()) {
1900                    launchDefaultSearch();
1901                }
1902                return true;
1903            }
1904        }
1905
1906        return false;
1907    }
1908
1909    @Override
1910    protected void onActive() {
1911    }
1912
1913    @Override
1914    public final View getDecorView() {
1915        if (mDecor == null) {
1916            installDecor();
1917        }
1918        return mDecor;
1919    }
1920
1921    @Override
1922    public final View peekDecorView() {
1923        return mDecor;
1924    }
1925
1926    static private final String FOCUSED_ID_TAG = "android:focusedViewId";
1927    static private final String VIEWS_TAG = "android:views";
1928    static private final String PANELS_TAG = "android:Panels";
1929    static private final String ACTION_BAR_TAG = "android:ActionBar";
1930
1931    /** {@inheritDoc} */
1932    @Override
1933    public Bundle saveHierarchyState() {
1934        Bundle outState = new Bundle();
1935        if (mContentParent == null) {
1936            return outState;
1937        }
1938
1939        SparseArray<Parcelable> states = new SparseArray<Parcelable>();
1940        mContentParent.saveHierarchyState(states);
1941        outState.putSparseParcelableArray(VIEWS_TAG, states);
1942
1943        // save the focused view id
1944        View focusedView = mContentParent.findFocus();
1945        if (focusedView != null) {
1946            if (focusedView.getId() != View.NO_ID) {
1947                outState.putInt(FOCUSED_ID_TAG, focusedView.getId());
1948            } else {
1949                if (false) {
1950                    Log.d(TAG, "couldn't save which view has focus because the focused view "
1951                            + focusedView + " has no id.");
1952                }
1953            }
1954        }
1955
1956        // save the panels
1957        SparseArray<Parcelable> panelStates = new SparseArray<Parcelable>();
1958        savePanelState(panelStates);
1959        if (panelStates.size() > 0) {
1960            outState.putSparseParcelableArray(PANELS_TAG, panelStates);
1961        }
1962
1963        if (mDecorContentParent != null) {
1964            SparseArray<Parcelable> actionBarStates = new SparseArray<Parcelable>();
1965            mDecorContentParent.saveToolbarHierarchyState(actionBarStates);
1966            outState.putSparseParcelableArray(ACTION_BAR_TAG, actionBarStates);
1967        }
1968
1969        return outState;
1970    }
1971
1972    /** {@inheritDoc} */
1973    @Override
1974    public void restoreHierarchyState(Bundle savedInstanceState) {
1975        if (mContentParent == null) {
1976            return;
1977        }
1978
1979        SparseArray<Parcelable> savedStates
1980                = savedInstanceState.getSparseParcelableArray(VIEWS_TAG);
1981        if (savedStates != null) {
1982            mContentParent.restoreHierarchyState(savedStates);
1983        }
1984
1985        // restore the focused view
1986        int focusedViewId = savedInstanceState.getInt(FOCUSED_ID_TAG, View.NO_ID);
1987        if (focusedViewId != View.NO_ID) {
1988            View needsFocus = mContentParent.findViewById(focusedViewId);
1989            if (needsFocus != null) {
1990                needsFocus.requestFocus();
1991            } else {
1992                Log.w(TAG,
1993                        "Previously focused view reported id " + focusedViewId
1994                                + " during save, but can't be found during restore.");
1995            }
1996        }
1997
1998        // restore the panels
1999        SparseArray<Parcelable> panelStates = savedInstanceState.getSparseParcelableArray(PANELS_TAG);
2000        if (panelStates != null) {
2001            restorePanelState(panelStates);
2002        }
2003
2004        if (mDecorContentParent != null) {
2005            SparseArray<Parcelable> actionBarStates =
2006                    savedInstanceState.getSparseParcelableArray(ACTION_BAR_TAG);
2007            if (actionBarStates != null) {
2008                doPendingInvalidatePanelMenu();
2009                mDecorContentParent.restoreToolbarHierarchyState(actionBarStates);
2010            } else {
2011                Log.w(TAG, "Missing saved instance states for action bar views! " +
2012                        "State will not be restored.");
2013            }
2014        }
2015    }
2016
2017    /**
2018     * Invoked when the panels should freeze their state.
2019     *
2020     * @param icicles Save state into this. This is usually indexed by the
2021     *            featureId. This will be given to {@link #restorePanelState} in the
2022     *            future.
2023     */
2024    private void savePanelState(SparseArray<Parcelable> icicles) {
2025        PanelFeatureState[] panels = mPanels;
2026        if (panels == null) {
2027            return;
2028        }
2029
2030        for (int curFeatureId = panels.length - 1; curFeatureId >= 0; curFeatureId--) {
2031            if (panels[curFeatureId] != null) {
2032                icicles.put(curFeatureId, panels[curFeatureId].onSaveInstanceState());
2033            }
2034        }
2035    }
2036
2037    /**
2038     * Invoked when the panels should thaw their state from a previously frozen state.
2039     *
2040     * @param icicles The state saved by {@link #savePanelState} that needs to be thawed.
2041     */
2042    private void restorePanelState(SparseArray<Parcelable> icicles) {
2043        PanelFeatureState st;
2044        int curFeatureId;
2045        for (int i = icicles.size() - 1; i >= 0; i--) {
2046            curFeatureId = icicles.keyAt(i);
2047            st = getPanelState(curFeatureId, false /* required */);
2048            if (st == null) {
2049                // The panel must not have been required, and is currently not around, skip it
2050                continue;
2051            }
2052
2053            st.onRestoreInstanceState(icicles.get(curFeatureId));
2054            invalidatePanelMenu(curFeatureId);
2055        }
2056
2057        /*
2058         * Implementation note: call openPanelsAfterRestore later to actually open the
2059         * restored panels.
2060         */
2061    }
2062
2063    /**
2064     * Opens the panels that have had their state restored. This should be
2065     * called sometime after {@link #restorePanelState} when it is safe to add
2066     * to the window manager.
2067     */
2068    private void openPanelsAfterRestore() {
2069        PanelFeatureState[] panels = mPanels;
2070
2071        if (panels == null) {
2072            return;
2073        }
2074
2075        PanelFeatureState st;
2076        for (int i = panels.length - 1; i >= 0; i--) {
2077            st = panels[i];
2078            // We restore the panel if it was last open; we skip it if it
2079            // now is open, to avoid a race condition if the user immediately
2080            // opens it when we are resuming.
2081            if (st != null) {
2082                st.applyFrozenState();
2083                if (!st.isOpen && st.wasLastOpen) {
2084                    st.isInExpandedMode = st.wasLastExpanded;
2085                    openPanel(st, null);
2086                }
2087            }
2088        }
2089    }
2090
2091    private class PanelMenuPresenterCallback implements MenuPresenter.Callback {
2092        @Override
2093        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
2094            final Menu parentMenu = menu.getRootMenu();
2095            final boolean isSubMenu = parentMenu != menu;
2096            final PanelFeatureState panel = findMenuPanel(isSubMenu ? parentMenu : menu);
2097            if (panel != null) {
2098                if (isSubMenu) {
2099                    callOnPanelClosed(panel.featureId, panel, parentMenu);
2100                    closePanel(panel, true);
2101                } else {
2102                    // Close the panel and only do the callback if the menu is being
2103                    // closed completely, not if opening a sub menu
2104                    closePanel(panel, allMenusAreClosing);
2105                }
2106            }
2107        }
2108
2109        @Override
2110        public boolean onOpenSubMenu(MenuBuilder subMenu) {
2111            if (subMenu == null && hasFeature(FEATURE_ACTION_BAR)) {
2112                Callback cb = getCallback();
2113                if (cb != null && !isDestroyed()) {
2114                    cb.onMenuOpened(FEATURE_ACTION_BAR, subMenu);
2115                }
2116            }
2117
2118            return true;
2119        }
2120    }
2121
2122    private final class ActionMenuPresenterCallback implements MenuPresenter.Callback {
2123        @Override
2124        public boolean onOpenSubMenu(MenuBuilder subMenu) {
2125            Callback cb = getCallback();
2126            if (cb != null) {
2127                cb.onMenuOpened(FEATURE_ACTION_BAR, subMenu);
2128                return true;
2129            }
2130            return false;
2131        }
2132
2133        @Override
2134        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
2135            checkCloseActionMenu(menu);
2136        }
2137    }
2138
2139    private final class DecorView extends FrameLayout implements RootViewSurfaceTaker {
2140        /* package */int mDefaultOpacity = PixelFormat.OPAQUE;
2141
2142        /** The feature ID of the panel, or -1 if this is the application's DecorView */
2143        private final int mFeatureId;
2144
2145        private final Rect mDrawingBounds = new Rect();
2146
2147        private final Rect mBackgroundPadding = new Rect();
2148
2149        private final Rect mFramePadding = new Rect();
2150
2151        private final Rect mFrameOffsets = new Rect();
2152
2153        private boolean mChanging;
2154
2155        private Drawable mMenuBackground;
2156        private boolean mWatchingForMenu;
2157        private int mDownY;
2158
2159        private ActionMode mActionMode;
2160        private ActionBarContextView mActionModeView;
2161        private PopupWindow mActionModePopup;
2162        private Runnable mShowActionModePopup;
2163
2164        // View added at runtime to draw under the status bar area
2165        private View mStatusGuard;
2166        // View added at runtime to draw under the navigation bar area
2167        private View mNavigationGuard;
2168
2169        private View mStatusColorView;
2170        private View mNavigationColorView;
2171        private final BackgroundFallback mBackgroundFallback = new BackgroundFallback();
2172
2173        private int mLastTopInset = 0;
2174        private int mLastBottomInset = 0;
2175        private int mLastRightInset = 0;
2176
2177
2178        public DecorView(Context context, int featureId) {
2179            super(context);
2180            mFeatureId = featureId;
2181        }
2182
2183        public void setBackgroundFallback(int resId) {
2184            mBackgroundFallback.setDrawable(resId != 0 ? getContext().getDrawable(resId) : null);
2185            setWillNotDraw(getBackground() == null && !mBackgroundFallback.hasFallback());
2186        }
2187
2188        @Override
2189        public void onDraw(Canvas c) {
2190            super.onDraw(c);
2191            mBackgroundFallback.draw(mContentRoot, c, mContentParent);
2192        }
2193
2194        @Override
2195        public boolean dispatchKeyEvent(KeyEvent event) {
2196            final int keyCode = event.getKeyCode();
2197            final int action = event.getAction();
2198            final boolean isDown = action == KeyEvent.ACTION_DOWN;
2199
2200            if (isDown && (event.getRepeatCount() == 0)) {
2201                // First handle chording of panel key: if a panel key is held
2202                // but not released, try to execute a shortcut in it.
2203                if ((mPanelChordingKey > 0) && (mPanelChordingKey != keyCode)) {
2204                    boolean handled = dispatchKeyShortcutEvent(event);
2205                    if (handled) {
2206                        return true;
2207                    }
2208                }
2209
2210                // If a panel is open, perform a shortcut on it without the
2211                // chorded panel key
2212                if ((mPreparedPanel != null) && mPreparedPanel.isOpen) {
2213                    if (performPanelShortcut(mPreparedPanel, keyCode, event, 0)) {
2214                        return true;
2215                    }
2216                }
2217            }
2218
2219            if (!isDestroyed()) {
2220                final Callback cb = getCallback();
2221                final boolean handled = cb != null && mFeatureId < 0 ? cb.dispatchKeyEvent(event)
2222                        : super.dispatchKeyEvent(event);
2223                if (handled) {
2224                    return true;
2225                }
2226            }
2227
2228            return isDown ? PhoneWindow.this.onKeyDown(mFeatureId, event.getKeyCode(), event)
2229                    : PhoneWindow.this.onKeyUp(mFeatureId, event.getKeyCode(), event);
2230        }
2231
2232        @Override
2233        public boolean dispatchKeyShortcutEvent(KeyEvent ev) {
2234            // If the panel is already prepared, then perform the shortcut using it.
2235            boolean handled;
2236            if (mPreparedPanel != null) {
2237                handled = performPanelShortcut(mPreparedPanel, ev.getKeyCode(), ev,
2238                        Menu.FLAG_PERFORM_NO_CLOSE);
2239                if (handled) {
2240                    if (mPreparedPanel != null) {
2241                        mPreparedPanel.isHandled = true;
2242                    }
2243                    return true;
2244                }
2245            }
2246
2247            // Shortcut not handled by the panel.  Dispatch to the view hierarchy.
2248            final Callback cb = getCallback();
2249            handled = cb != null && !isDestroyed() && mFeatureId < 0
2250                    ? cb.dispatchKeyShortcutEvent(ev) : super.dispatchKeyShortcutEvent(ev);
2251            if (handled) {
2252                return true;
2253            }
2254
2255            // If the panel is not prepared, then we may be trying to handle a shortcut key
2256            // combination such as Control+C.  Temporarily prepare the panel then mark it
2257            // unprepared again when finished to ensure that the panel will again be prepared
2258            // the next time it is shown for real.
2259            if (mPreparedPanel == null) {
2260                PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
2261                preparePanel(st, ev);
2262                handled = performPanelShortcut(st, ev.getKeyCode(), ev,
2263                        Menu.FLAG_PERFORM_NO_CLOSE);
2264                st.isPrepared = false;
2265                if (handled) {
2266                    return true;
2267                }
2268            }
2269            return false;
2270        }
2271
2272        @Override
2273        public boolean dispatchTouchEvent(MotionEvent ev) {
2274            final Callback cb = getCallback();
2275            return cb != null && !isDestroyed() && mFeatureId < 0 ? cb.dispatchTouchEvent(ev)
2276                    : super.dispatchTouchEvent(ev);
2277        }
2278
2279        @Override
2280        public boolean dispatchTrackballEvent(MotionEvent ev) {
2281            final Callback cb = getCallback();
2282            return cb != null && !isDestroyed() && mFeatureId < 0 ? cb.dispatchTrackballEvent(ev)
2283                    : super.dispatchTrackballEvent(ev);
2284        }
2285
2286        @Override
2287        public boolean dispatchGenericMotionEvent(MotionEvent ev) {
2288            final Callback cb = getCallback();
2289            return cb != null && !isDestroyed() && mFeatureId < 0 ? cb.dispatchGenericMotionEvent(ev)
2290                    : super.dispatchGenericMotionEvent(ev);
2291        }
2292
2293        public boolean superDispatchKeyEvent(KeyEvent event) {
2294            // Give priority to closing action modes if applicable.
2295            if (event.getKeyCode() == KeyEvent.KEYCODE_BACK) {
2296                final int action = event.getAction();
2297                // Back cancels action modes first.
2298                if (mActionMode != null) {
2299                    if (action == KeyEvent.ACTION_UP) {
2300                        mActionMode.finish();
2301                    }
2302                    return true;
2303                }
2304            }
2305
2306            return super.dispatchKeyEvent(event);
2307        }
2308
2309        public boolean superDispatchKeyShortcutEvent(KeyEvent event) {
2310            return super.dispatchKeyShortcutEvent(event);
2311        }
2312
2313        public boolean superDispatchTouchEvent(MotionEvent event) {
2314            return super.dispatchTouchEvent(event);
2315        }
2316
2317        public boolean superDispatchTrackballEvent(MotionEvent event) {
2318            return super.dispatchTrackballEvent(event);
2319        }
2320
2321        public boolean superDispatchGenericMotionEvent(MotionEvent event) {
2322            return super.dispatchGenericMotionEvent(event);
2323        }
2324
2325        @Override
2326        public WindowInsets dispatchApplyWindowInsets(WindowInsets insets) {
2327            if (mOutsetBottom != null) {
2328                final DisplayMetrics metrics = getContext().getResources().getDisplayMetrics();
2329                int bottom = (int) mOutsetBottom.getDimension(metrics);
2330                WindowInsets newInsets = insets.replaceSystemWindowInsets(
2331                        insets.getSystemWindowInsetLeft(), insets.getSystemWindowInsetTop(),
2332                        insets.getSystemWindowInsetRight(), bottom);
2333                return super.dispatchApplyWindowInsets(newInsets);
2334            } else {
2335                return super.dispatchApplyWindowInsets(insets);
2336            }
2337        }
2338
2339
2340        @Override
2341        public boolean onTouchEvent(MotionEvent event) {
2342            return onInterceptTouchEvent(event);
2343        }
2344
2345        private boolean isOutOfBounds(int x, int y) {
2346            return x < -5 || y < -5 || x > (getWidth() + 5)
2347                    || y > (getHeight() + 5);
2348        }
2349
2350        @Override
2351        public boolean onInterceptTouchEvent(MotionEvent event) {
2352            int action = event.getAction();
2353            if (mFeatureId >= 0) {
2354                if (action == MotionEvent.ACTION_DOWN) {
2355                    int x = (int)event.getX();
2356                    int y = (int)event.getY();
2357                    if (isOutOfBounds(x, y)) {
2358                        closePanel(mFeatureId);
2359                        return true;
2360                    }
2361                }
2362            }
2363
2364            if (!SWEEP_OPEN_MENU) {
2365                return false;
2366            }
2367
2368            if (mFeatureId >= 0) {
2369                if (action == MotionEvent.ACTION_DOWN) {
2370                    Log.i(TAG, "Watchiing!");
2371                    mWatchingForMenu = true;
2372                    mDownY = (int) event.getY();
2373                    return false;
2374                }
2375
2376                if (!mWatchingForMenu) {
2377                    return false;
2378                }
2379
2380                int y = (int)event.getY();
2381                if (action == MotionEvent.ACTION_MOVE) {
2382                    if (y > (mDownY+30)) {
2383                        Log.i(TAG, "Closing!");
2384                        closePanel(mFeatureId);
2385                        mWatchingForMenu = false;
2386                        return true;
2387                    }
2388                } else if (action == MotionEvent.ACTION_UP) {
2389                    mWatchingForMenu = false;
2390                }
2391
2392                return false;
2393            }
2394
2395            //Log.i(TAG, "Intercept: action=" + action + " y=" + event.getY()
2396            //        + " (in " + getHeight() + ")");
2397
2398            if (action == MotionEvent.ACTION_DOWN) {
2399                int y = (int)event.getY();
2400                if (y >= (getHeight()-5) && !hasChildren()) {
2401                    Log.i(TAG, "Watchiing!");
2402                    mWatchingForMenu = true;
2403                }
2404                return false;
2405            }
2406
2407            if (!mWatchingForMenu) {
2408                return false;
2409            }
2410
2411            int y = (int)event.getY();
2412            if (action == MotionEvent.ACTION_MOVE) {
2413                if (y < (getHeight()-30)) {
2414                    Log.i(TAG, "Opening!");
2415                    openPanel(FEATURE_OPTIONS_PANEL, new KeyEvent(
2416                            KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MENU));
2417                    mWatchingForMenu = false;
2418                    return true;
2419                }
2420            } else if (action == MotionEvent.ACTION_UP) {
2421                mWatchingForMenu = false;
2422            }
2423
2424            return false;
2425        }
2426
2427        @Override
2428        public void sendAccessibilityEvent(int eventType) {
2429            if (!AccessibilityManager.getInstance(mContext).isEnabled()) {
2430                return;
2431            }
2432
2433            // if we are showing a feature that should be announced and one child
2434            // make this child the event source since this is the feature itself
2435            // otherwise the callback will take over and announce its client
2436            if ((mFeatureId == FEATURE_OPTIONS_PANEL ||
2437                    mFeatureId == FEATURE_CONTEXT_MENU ||
2438                    mFeatureId == FEATURE_PROGRESS ||
2439                    mFeatureId == FEATURE_INDETERMINATE_PROGRESS)
2440                    && getChildCount() == 1) {
2441                getChildAt(0).sendAccessibilityEvent(eventType);
2442            } else {
2443                super.sendAccessibilityEvent(eventType);
2444            }
2445        }
2446
2447        @Override
2448        public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
2449            final Callback cb = getCallback();
2450            if (cb != null && !isDestroyed()) {
2451                if (cb.dispatchPopulateAccessibilityEvent(event)) {
2452                    return true;
2453                }
2454            }
2455            return super.dispatchPopulateAccessibilityEvent(event);
2456        }
2457
2458        @Override
2459        protected boolean setFrame(int l, int t, int r, int b) {
2460            boolean changed = super.setFrame(l, t, r, b);
2461            if (changed) {
2462                final Rect drawingBounds = mDrawingBounds;
2463                getDrawingRect(drawingBounds);
2464
2465                Drawable fg = getForeground();
2466                if (fg != null) {
2467                    final Rect frameOffsets = mFrameOffsets;
2468                    drawingBounds.left += frameOffsets.left;
2469                    drawingBounds.top += frameOffsets.top;
2470                    drawingBounds.right -= frameOffsets.right;
2471                    drawingBounds.bottom -= frameOffsets.bottom;
2472                    fg.setBounds(drawingBounds);
2473                    final Rect framePadding = mFramePadding;
2474                    drawingBounds.left += framePadding.left - frameOffsets.left;
2475                    drawingBounds.top += framePadding.top - frameOffsets.top;
2476                    drawingBounds.right -= framePadding.right - frameOffsets.right;
2477                    drawingBounds.bottom -= framePadding.bottom - frameOffsets.bottom;
2478                }
2479
2480                Drawable bg = getBackground();
2481                if (bg != null) {
2482                    bg.setBounds(drawingBounds);
2483                }
2484
2485                if (SWEEP_OPEN_MENU) {
2486                    if (mMenuBackground == null && mFeatureId < 0
2487                            && getAttributes().height
2488                            == WindowManager.LayoutParams.MATCH_PARENT) {
2489                        mMenuBackground = getContext().getDrawable(
2490                                R.drawable.menu_background);
2491                    }
2492                    if (mMenuBackground != null) {
2493                        mMenuBackground.setBounds(drawingBounds.left,
2494                                drawingBounds.bottom-6, drawingBounds.right,
2495                                drawingBounds.bottom+20);
2496                    }
2497                }
2498            }
2499            return changed;
2500        }
2501
2502        @Override
2503        protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
2504            final DisplayMetrics metrics = getContext().getResources().getDisplayMetrics();
2505            final boolean isPortrait = metrics.widthPixels < metrics.heightPixels;
2506
2507            final int widthMode = getMode(widthMeasureSpec);
2508            final int heightMode = getMode(heightMeasureSpec);
2509
2510            boolean fixedWidth = false;
2511            if (widthMode == AT_MOST) {
2512                final TypedValue tvw = isPortrait ? mFixedWidthMinor : mFixedWidthMajor;
2513                if (tvw != null && tvw.type != TypedValue.TYPE_NULL) {
2514                    final int w;
2515                    if (tvw.type == TypedValue.TYPE_DIMENSION) {
2516                        w = (int) tvw.getDimension(metrics);
2517                    } else if (tvw.type == TypedValue.TYPE_FRACTION) {
2518                        w = (int) tvw.getFraction(metrics.widthPixels, metrics.widthPixels);
2519                    } else {
2520                        w = 0;
2521                    }
2522
2523                    if (w > 0) {
2524                        final int widthSize = MeasureSpec.getSize(widthMeasureSpec);
2525                        widthMeasureSpec = MeasureSpec.makeMeasureSpec(
2526                                Math.min(w, widthSize), EXACTLY);
2527                        fixedWidth = true;
2528                    }
2529                }
2530            }
2531
2532            if (heightMode == AT_MOST) {
2533                final TypedValue tvh = isPortrait ? mFixedHeightMajor : mFixedHeightMinor;
2534                if (tvh != null && tvh.type != TypedValue.TYPE_NULL) {
2535                    final int h;
2536                    if (tvh.type == TypedValue.TYPE_DIMENSION) {
2537                        h = (int) tvh.getDimension(metrics);
2538                    } else if (tvh.type == TypedValue.TYPE_FRACTION) {
2539                        h = (int) tvh.getFraction(metrics.heightPixels, metrics.heightPixels);
2540                    } else {
2541                        h = 0;
2542                    }
2543                    if (h > 0) {
2544                        final int heightSize = MeasureSpec.getSize(heightMeasureSpec);
2545                        heightMeasureSpec = MeasureSpec.makeMeasureSpec(
2546                                Math.min(h, heightSize), EXACTLY);
2547                    }
2548                }
2549            }
2550
2551            if (mOutsetBottom != null) {
2552                int mode = MeasureSpec.getMode(heightMeasureSpec);
2553                if (mode != MeasureSpec.UNSPECIFIED) {
2554                    int outset = (int) mOutsetBottom.getDimension(metrics);
2555                    int height = MeasureSpec.getSize(heightMeasureSpec);
2556                    heightMeasureSpec = MeasureSpec.makeMeasureSpec(height + outset, mode);
2557                }
2558            }
2559
2560            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
2561
2562            int width = getMeasuredWidth();
2563            boolean measure = false;
2564
2565            widthMeasureSpec = MeasureSpec.makeMeasureSpec(width, EXACTLY);
2566
2567            if (!fixedWidth && widthMode == AT_MOST) {
2568                final TypedValue tv = isPortrait ? mMinWidthMinor : mMinWidthMajor;
2569                if (tv.type != TypedValue.TYPE_NULL) {
2570                    final int min;
2571                    if (tv.type == TypedValue.TYPE_DIMENSION) {
2572                        min = (int)tv.getDimension(metrics);
2573                    } else if (tv.type == TypedValue.TYPE_FRACTION) {
2574                        min = (int)tv.getFraction(metrics.widthPixels, metrics.widthPixels);
2575                    } else {
2576                        min = 0;
2577                    }
2578
2579                    if (width < min) {
2580                        widthMeasureSpec = MeasureSpec.makeMeasureSpec(min, EXACTLY);
2581                        measure = true;
2582                    }
2583                }
2584            }
2585
2586            // TODO: Support height?
2587
2588            if (measure) {
2589                super.onMeasure(widthMeasureSpec, heightMeasureSpec);
2590            }
2591        }
2592
2593        @Override
2594        public void draw(Canvas canvas) {
2595            super.draw(canvas);
2596
2597            if (mMenuBackground != null) {
2598                mMenuBackground.draw(canvas);
2599            }
2600        }
2601
2602
2603        @Override
2604        public boolean showContextMenuForChild(View originalView) {
2605            // Reuse the context menu builder
2606            if (mContextMenu == null) {
2607                mContextMenu = new ContextMenuBuilder(getContext());
2608                mContextMenu.setCallback(mContextMenuCallback);
2609            } else {
2610                mContextMenu.clearAll();
2611            }
2612
2613            final MenuDialogHelper helper = mContextMenu.show(originalView,
2614                    originalView.getWindowToken());
2615            if (helper != null) {
2616                helper.setPresenterCallback(mContextMenuCallback);
2617            } else if (mContextMenuHelper != null) {
2618                // No menu to show, but if we have a menu currently showing it just became blank.
2619                // Close it.
2620                mContextMenuHelper.dismiss();
2621            }
2622            mContextMenuHelper = helper;
2623            return helper != null;
2624        }
2625
2626        @Override
2627        public ActionMode startActionModeForChild(View originalView,
2628                ActionMode.Callback callback) {
2629            // originalView can be used here to be sure that we don't obscure
2630            // relevant content with the context mode UI.
2631            return startActionMode(callback);
2632        }
2633
2634        @Override
2635        public ActionMode startActionMode(ActionMode.Callback callback) {
2636            if (mActionMode != null) {
2637                mActionMode.finish();
2638            }
2639
2640            final ActionMode.Callback wrappedCallback = new ActionModeCallbackWrapper(callback);
2641            ActionMode mode = null;
2642            if (getCallback() != null && !isDestroyed()) {
2643                try {
2644                    mode = getCallback().onWindowStartingActionMode(wrappedCallback);
2645                } catch (AbstractMethodError ame) {
2646                    // Older apps might not implement this callback method.
2647                }
2648            }
2649            if (mode != null) {
2650                mActionMode = mode;
2651            } else {
2652                if (mActionModeView == null) {
2653                    if (isFloating()) {
2654                        // Use the action bar theme.
2655                        final TypedValue outValue = new TypedValue();
2656                        final Theme baseTheme = mContext.getTheme();
2657                        baseTheme.resolveAttribute(R.attr.actionBarTheme, outValue, true);
2658
2659                        final Context actionBarContext;
2660                        if (outValue.resourceId != 0) {
2661                            final Theme actionBarTheme = mContext.getResources().newTheme();
2662                            actionBarTheme.setTo(baseTheme);
2663                            actionBarTheme.applyStyle(outValue.resourceId, true);
2664
2665                            actionBarContext = new ContextThemeWrapper(mContext, 0);
2666                            actionBarContext.getTheme().setTo(actionBarTheme);
2667                        } else {
2668                            actionBarContext = mContext;
2669                        }
2670
2671                        mActionModeView = new ActionBarContextView(actionBarContext);
2672                        mActionModePopup = new PopupWindow(actionBarContext, null,
2673                                R.attr.actionModePopupWindowStyle);
2674                        mActionModePopup.setWindowLayoutType(
2675                                WindowManager.LayoutParams.TYPE_APPLICATION);
2676                        mActionModePopup.setContentView(mActionModeView);
2677                        mActionModePopup.setWidth(MATCH_PARENT);
2678
2679                        actionBarContext.getTheme().resolveAttribute(
2680                                R.attr.actionBarSize, outValue, true);
2681                        final int height = TypedValue.complexToDimensionPixelSize(outValue.data,
2682                                actionBarContext.getResources().getDisplayMetrics());
2683                        mActionModeView.setContentHeight(height);
2684                        mActionModePopup.setHeight(WRAP_CONTENT);
2685                        mShowActionModePopup = new Runnable() {
2686                            public void run() {
2687                                mActionModePopup.showAtLocation(
2688                                        mActionModeView.getApplicationWindowToken(),
2689                                        Gravity.TOP | Gravity.FILL_HORIZONTAL, 0, 0);
2690                            }
2691                        };
2692                    } else {
2693                        ViewStub stub = (ViewStub) findViewById(
2694                                R.id.action_mode_bar_stub);
2695                        if (stub != null) {
2696                            mActionModeView = (ActionBarContextView) stub.inflate();
2697                        }
2698                    }
2699                }
2700
2701                if (mActionModeView != null) {
2702                    mActionModeView.killMode();
2703                    mode = new StandaloneActionMode(mActionModeView.getContext(), mActionModeView,
2704                            wrappedCallback, mActionModePopup == null);
2705                    if (callback.onCreateActionMode(mode, mode.getMenu())) {
2706                        mode.invalidate();
2707                        mActionModeView.initForMode(mode);
2708                        mActionModeView.setVisibility(View.VISIBLE);
2709                        mActionMode = mode;
2710                        if (mActionModePopup != null) {
2711                            post(mShowActionModePopup);
2712                        }
2713                        mActionModeView.sendAccessibilityEvent(
2714                                AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
2715                    } else {
2716                        mActionMode = null;
2717                    }
2718                }
2719            }
2720            if (mActionMode != null && getCallback() != null && !isDestroyed()) {
2721                try {
2722                    getCallback().onActionModeStarted(mActionMode);
2723                } catch (AbstractMethodError ame) {
2724                    // Older apps might not implement this callback method.
2725                }
2726            }
2727            return mActionMode;
2728        }
2729
2730        public void startChanging() {
2731            mChanging = true;
2732        }
2733
2734        public void finishChanging() {
2735            mChanging = false;
2736            drawableChanged();
2737        }
2738
2739        public void setWindowBackground(Drawable drawable) {
2740            if (getBackground() != drawable) {
2741                setBackgroundDrawable(drawable);
2742                if (drawable != null) {
2743                    drawable.getPadding(mBackgroundPadding);
2744                } else {
2745                    mBackgroundPadding.setEmpty();
2746                }
2747                drawableChanged();
2748            }
2749        }
2750
2751        @Override
2752        public void setBackgroundDrawable(Drawable d) {
2753            super.setBackgroundDrawable(d);
2754            if (getWindowToken() != null) {
2755                updateWindowResizeState();
2756            }
2757        }
2758
2759        public void setWindowFrame(Drawable drawable) {
2760            if (getForeground() != drawable) {
2761                setForeground(drawable);
2762                if (drawable != null) {
2763                    drawable.getPadding(mFramePadding);
2764                } else {
2765                    mFramePadding.setEmpty();
2766                }
2767                drawableChanged();
2768            }
2769        }
2770
2771        @Override
2772        public void onWindowSystemUiVisibilityChanged(int visible) {
2773            updateColorViews(null /* insets */);
2774        }
2775
2776        @Override
2777        public WindowInsets onApplyWindowInsets(WindowInsets insets) {
2778            mFrameOffsets.set(insets.getSystemWindowInsets());
2779            insets = updateColorViews(insets);
2780            insets = updateStatusGuard(insets);
2781            updateNavigationGuard(insets);
2782            if (getForeground() != null) {
2783                drawableChanged();
2784            }
2785            return insets;
2786        }
2787
2788        @Override
2789        public boolean isTransitionGroup() {
2790            return false;
2791        }
2792
2793        private WindowInsets updateColorViews(WindowInsets insets) {
2794            WindowManager.LayoutParams attrs = getAttributes();
2795            int sysUiVisibility = attrs.systemUiVisibility | getWindowSystemUiVisibility();
2796
2797            if (!mIsFloating && ActivityManager.isHighEndGfx()) {
2798                if (insets != null) {
2799                    mLastTopInset = Math.min(insets.getStableInsetTop(),
2800                            insets.getSystemWindowInsetTop());
2801                    mLastBottomInset = Math.min(insets.getStableInsetBottom(),
2802                            insets.getSystemWindowInsetBottom());
2803                    mLastRightInset = Math.min(insets.getStableInsetRight(),
2804                            insets.getSystemWindowInsetRight());
2805                }
2806                mStatusColorView = updateColorViewInt(mStatusColorView, sysUiVisibility,
2807                        SYSTEM_UI_FLAG_FULLSCREEN, FLAG_TRANSLUCENT_STATUS,
2808                        mStatusBarColor, mLastTopInset, Gravity.TOP,
2809                        STATUS_BAR_BACKGROUND_TRANSITION_NAME,
2810                        com.android.internal.R.id.statusBarBackground,
2811                        (getAttributes().flags & FLAG_FULLSCREEN) != 0);
2812                mNavigationColorView = updateColorViewInt(mNavigationColorView, sysUiVisibility,
2813                        SYSTEM_UI_FLAG_HIDE_NAVIGATION, FLAG_TRANSLUCENT_NAVIGATION,
2814                        mNavigationBarColor, mLastBottomInset, Gravity.BOTTOM,
2815                        NAVIGATION_BAR_BACKGROUND_TRANSITION_NAME,
2816                        com.android.internal.R.id.navigationBarBackground,
2817                        false /* hiddenByWindowFlag */);
2818            }
2819
2820            // When we expand the window with FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS, we still need
2821            // to ensure that the rest of the view hierarchy doesn't notice it, unless they've
2822            // explicitly asked for it.
2823
2824            boolean consumingNavBar =
2825                    (attrs.flags & FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS) != 0
2826                            && (sysUiVisibility & SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION) == 0
2827                            && (sysUiVisibility & SYSTEM_UI_FLAG_HIDE_NAVIGATION) == 0;
2828
2829            int consumedRight = consumingNavBar ? mLastRightInset : 0;
2830            int consumedBottom = consumingNavBar ? mLastBottomInset : 0;
2831
2832            if (mContentRoot != null
2833                    && mContentRoot.getLayoutParams() instanceof MarginLayoutParams) {
2834                MarginLayoutParams lp = (MarginLayoutParams) mContentRoot.getLayoutParams();
2835                if (lp.rightMargin != consumedRight || lp.bottomMargin != consumedBottom) {
2836                    lp.rightMargin = consumedRight;
2837                    lp.bottomMargin = consumedBottom;
2838                    mContentRoot.setLayoutParams(lp);
2839
2840                    if (insets == null) {
2841                        // The insets have changed, but we're not currently in the process
2842                        // of dispatching them.
2843                        requestApplyInsets();
2844                    }
2845                }
2846                if (insets != null) {
2847                    insets = insets.replaceSystemWindowInsets(
2848                            insets.getSystemWindowInsetLeft(),
2849                            insets.getSystemWindowInsetTop(),
2850                            insets.getSystemWindowInsetRight() - consumedRight,
2851                            insets.getSystemWindowInsetBottom() - consumedBottom);
2852                }
2853            }
2854
2855            if (insets != null) {
2856                insets = insets.consumeStableInsets();
2857            }
2858            return insets;
2859        }
2860
2861        private View updateColorViewInt(View view, int sysUiVis, int systemUiHideFlag,
2862                int translucentFlag, int color, int height, int verticalGravity,
2863                String transitionName, int id, boolean hiddenByWindowFlag) {
2864            boolean show = height > 0 && (sysUiVis & systemUiHideFlag) == 0
2865                    && !hiddenByWindowFlag
2866                    && (getAttributes().flags & translucentFlag) == 0
2867                    && (color & Color.BLACK) != 0
2868                    && (getAttributes().flags & FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS) != 0;
2869
2870            if (view == null) {
2871                if (show) {
2872                    view = new View(mContext);
2873                    view.setBackgroundColor(color);
2874                    view.setTransitionName(transitionName);
2875                    view.setId(id);
2876                    addView(view, new LayoutParams(LayoutParams.MATCH_PARENT, height,
2877                            Gravity.START | verticalGravity));
2878                }
2879            } else {
2880                int vis = show ? VISIBLE : INVISIBLE;
2881                view.setVisibility(vis);
2882                if (show) {
2883                    LayoutParams lp = (LayoutParams) view.getLayoutParams();
2884                    if (lp.height != height) {
2885                        lp.height = height;
2886                        view.setLayoutParams(lp);
2887                    }
2888                    view.setBackgroundColor(color);
2889                }
2890            }
2891            return view;
2892        }
2893
2894        private WindowInsets updateStatusGuard(WindowInsets insets) {
2895            boolean showStatusGuard = false;
2896            // Show the status guard when the non-overlay contextual action bar is showing
2897            if (mActionModeView != null) {
2898                if (mActionModeView.getLayoutParams() instanceof MarginLayoutParams) {
2899                    // Insets are magic!
2900                    final MarginLayoutParams mlp = (MarginLayoutParams)
2901                            mActionModeView.getLayoutParams();
2902                    boolean mlpChanged = false;
2903                    if (mActionModeView.isShown()) {
2904                        if (mTempRect == null) {
2905                            mTempRect = new Rect();
2906                        }
2907                        final Rect rect = mTempRect;
2908
2909                        // If the parent doesn't consume the insets, manually
2910                        // apply the default system window insets.
2911                        mContentParent.computeSystemWindowInsets(insets, rect);
2912                        final int newMargin = rect.top == 0 ? insets.getSystemWindowInsetTop() : 0;
2913                        if (mlp.topMargin != newMargin) {
2914                            mlpChanged = true;
2915                            mlp.topMargin = insets.getSystemWindowInsetTop();
2916
2917                            if (mStatusGuard == null) {
2918                                mStatusGuard = new View(mContext);
2919                                mStatusGuard.setBackgroundColor(mContext.getResources()
2920                                        .getColor(R.color.input_method_navigation_guard));
2921                                addView(mStatusGuard, indexOfChild(mStatusColorView),
2922                                        new LayoutParams(LayoutParams.MATCH_PARENT,
2923                                                mlp.topMargin, Gravity.START | Gravity.TOP));
2924                            } else {
2925                                final LayoutParams lp = (LayoutParams)
2926                                        mStatusGuard.getLayoutParams();
2927                                if (lp.height != mlp.topMargin) {
2928                                    lp.height = mlp.topMargin;
2929                                    mStatusGuard.setLayoutParams(lp);
2930                                }
2931                            }
2932                        }
2933
2934                        // The action mode's theme may differ from the app, so
2935                        // always show the status guard above it if we have one.
2936                        showStatusGuard = mStatusGuard != null;
2937
2938                        // We only need to consume the insets if the action
2939                        // mode is overlaid on the app content (e.g. it's
2940                        // sitting in a FrameLayout, see
2941                        // screen_simple_overlay_action_mode.xml).
2942                        final boolean nonOverlay = (getLocalFeatures()
2943                                & (1 << FEATURE_ACTION_MODE_OVERLAY)) == 0;
2944                        insets = insets.consumeSystemWindowInsets(
2945                                false, nonOverlay && showStatusGuard /* top */, false, false);
2946                    } else {
2947                        // reset top margin
2948                        if (mlp.topMargin != 0) {
2949                            mlpChanged = true;
2950                            mlp.topMargin = 0;
2951                        }
2952                    }
2953                    if (mlpChanged) {
2954                        mActionModeView.setLayoutParams(mlp);
2955                    }
2956                }
2957            }
2958            if (mStatusGuard != null) {
2959                mStatusGuard.setVisibility(showStatusGuard ? View.VISIBLE : View.GONE);
2960            }
2961            return insets;
2962        }
2963
2964        private void updateNavigationGuard(WindowInsets insets) {
2965            // IMEs lay out below the nav bar, but the content view must not (for back compat)
2966            if (getAttributes().type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) {
2967                // prevent the content view from including the nav bar height
2968                if (mContentParent != null) {
2969                    if (mContentParent.getLayoutParams() instanceof MarginLayoutParams) {
2970                        MarginLayoutParams mlp =
2971                                (MarginLayoutParams) mContentParent.getLayoutParams();
2972                        mlp.bottomMargin = insets.getSystemWindowInsetBottom();
2973                        mContentParent.setLayoutParams(mlp);
2974                    }
2975                }
2976                // position the navigation guard view, creating it if necessary
2977                if (mNavigationGuard == null) {
2978                    mNavigationGuard = new View(mContext);
2979                    mNavigationGuard.setBackgroundColor(mContext.getResources()
2980                            .getColor(R.color.input_method_navigation_guard));
2981                    addView(mNavigationGuard, indexOfChild(mNavigationColorView), new LayoutParams(
2982                            LayoutParams.MATCH_PARENT, insets.getSystemWindowInsetBottom(),
2983                            Gravity.START | Gravity.BOTTOM));
2984                } else {
2985                    LayoutParams lp = (LayoutParams) mNavigationGuard.getLayoutParams();
2986                    lp.height = insets.getSystemWindowInsetBottom();
2987                    mNavigationGuard.setLayoutParams(lp);
2988                }
2989            }
2990        }
2991
2992        private void drawableChanged() {
2993            if (mChanging) {
2994                return;
2995            }
2996
2997            setPadding(mFramePadding.left + mBackgroundPadding.left, mFramePadding.top
2998                    + mBackgroundPadding.top, mFramePadding.right + mBackgroundPadding.right,
2999                    mFramePadding.bottom + mBackgroundPadding.bottom);
3000            requestLayout();
3001            invalidate();
3002
3003            int opacity = PixelFormat.OPAQUE;
3004            // Note: if there is no background, we will assume opaque. The
3005            // common case seems to be that an application sets there to be
3006            // no background so it can draw everything itself. For that,
3007            // we would like to assume OPAQUE and let the app force it to
3008            // the slower TRANSLUCENT mode if that is really what it wants.
3009            Drawable bg = getBackground();
3010            Drawable fg = getForeground();
3011            if (bg != null) {
3012                if (fg == null) {
3013                    opacity = bg.getOpacity();
3014                } else if (mFramePadding.left <= 0 && mFramePadding.top <= 0
3015                        && mFramePadding.right <= 0 && mFramePadding.bottom <= 0) {
3016                    // If the frame padding is zero, then we can be opaque
3017                    // if either the frame -or- the background is opaque.
3018                    int fop = fg.getOpacity();
3019                    int bop = bg.getOpacity();
3020                    if (false)
3021                        Log.v(TAG, "Background opacity: " + bop + ", Frame opacity: " + fop);
3022                    if (fop == PixelFormat.OPAQUE || bop == PixelFormat.OPAQUE) {
3023                        opacity = PixelFormat.OPAQUE;
3024                    } else if (fop == PixelFormat.UNKNOWN) {
3025                        opacity = bop;
3026                    } else if (bop == PixelFormat.UNKNOWN) {
3027                        opacity = fop;
3028                    } else {
3029                        opacity = Drawable.resolveOpacity(fop, bop);
3030                    }
3031                } else {
3032                    // For now we have to assume translucent if there is a
3033                    // frame with padding... there is no way to tell if the
3034                    // frame and background together will draw all pixels.
3035                    if (false)
3036                        Log.v(TAG, "Padding: " + mFramePadding);
3037                    opacity = PixelFormat.TRANSLUCENT;
3038                }
3039            }
3040
3041            if (false)
3042                Log.v(TAG, "Background: " + bg + ", Frame: " + fg);
3043            if (false)
3044                Log.v(TAG, "Selected default opacity: " + opacity);
3045
3046            mDefaultOpacity = opacity;
3047            if (mFeatureId < 0) {
3048                setDefaultWindowFormat(opacity);
3049            }
3050        }
3051
3052        @Override
3053        public void onWindowFocusChanged(boolean hasWindowFocus) {
3054            super.onWindowFocusChanged(hasWindowFocus);
3055
3056            // If the user is chording a menu shortcut, release the chord since
3057            // this window lost focus
3058            if (!hasWindowFocus && mPanelChordingKey != 0) {
3059                closePanel(FEATURE_OPTIONS_PANEL);
3060            }
3061
3062            final Callback cb = getCallback();
3063            if (cb != null && !isDestroyed() && mFeatureId < 0) {
3064                cb.onWindowFocusChanged(hasWindowFocus);
3065            }
3066        }
3067
3068        void updateWindowResizeState() {
3069            Drawable bg = getBackground();
3070            hackTurnOffWindowResizeAnim(bg == null || bg.getOpacity()
3071                    != PixelFormat.OPAQUE);
3072        }
3073
3074        @Override
3075        protected void onAttachedToWindow() {
3076            super.onAttachedToWindow();
3077
3078            updateWindowResizeState();
3079
3080            final Callback cb = getCallback();
3081            if (cb != null && !isDestroyed() && mFeatureId < 0) {
3082                cb.onAttachedToWindow();
3083            }
3084
3085            if (mFeatureId == -1) {
3086                /*
3087                 * The main window has been attached, try to restore any panels
3088                 * that may have been open before. This is called in cases where
3089                 * an activity is being killed for configuration change and the
3090                 * menu was open. When the activity is recreated, the menu
3091                 * should be shown again.
3092                 */
3093                openPanelsAfterRestore();
3094            }
3095        }
3096
3097        @Override
3098        protected void onDetachedFromWindow() {
3099            super.onDetachedFromWindow();
3100
3101            final Callback cb = getCallback();
3102            if (cb != null && mFeatureId < 0) {
3103                cb.onDetachedFromWindow();
3104            }
3105
3106            if (mDecorContentParent != null) {
3107                mDecorContentParent.dismissPopups();
3108            }
3109
3110            if (mActionModePopup != null) {
3111                removeCallbacks(mShowActionModePopup);
3112                if (mActionModePopup.isShowing()) {
3113                    mActionModePopup.dismiss();
3114                }
3115                mActionModePopup = null;
3116            }
3117
3118            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
3119            if (st != null && st.menu != null && mFeatureId < 0) {
3120                st.menu.close();
3121            }
3122        }
3123
3124        @Override
3125        public void onCloseSystemDialogs(String reason) {
3126            if (mFeatureId >= 0) {
3127                closeAllPanels();
3128            }
3129        }
3130
3131        public android.view.SurfaceHolder.Callback2 willYouTakeTheSurface() {
3132            return mFeatureId < 0 ? mTakeSurfaceCallback : null;
3133        }
3134
3135        public InputQueue.Callback willYouTakeTheInputQueue() {
3136            return mFeatureId < 0 ? mTakeInputQueueCallback : null;
3137        }
3138
3139        public void setSurfaceType(int type) {
3140            PhoneWindow.this.setType(type);
3141        }
3142
3143        public void setSurfaceFormat(int format) {
3144            PhoneWindow.this.setFormat(format);
3145        }
3146
3147        public void setSurfaceKeepScreenOn(boolean keepOn) {
3148            if (keepOn) PhoneWindow.this.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
3149            else PhoneWindow.this.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
3150        }
3151
3152        /**
3153         * Clears out internal reference when the action mode is destroyed.
3154         */
3155        private class ActionModeCallbackWrapper implements ActionMode.Callback {
3156            private ActionMode.Callback mWrapped;
3157
3158            public ActionModeCallbackWrapper(ActionMode.Callback wrapped) {
3159                mWrapped = wrapped;
3160            }
3161
3162            public boolean onCreateActionMode(ActionMode mode, Menu menu) {
3163                return mWrapped.onCreateActionMode(mode, menu);
3164            }
3165
3166            public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
3167                requestFitSystemWindows();
3168                return mWrapped.onPrepareActionMode(mode, menu);
3169            }
3170
3171            public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
3172                return mWrapped.onActionItemClicked(mode, item);
3173            }
3174
3175            public void onDestroyActionMode(ActionMode mode) {
3176                mWrapped.onDestroyActionMode(mode);
3177                if (mActionModePopup != null) {
3178                    removeCallbacks(mShowActionModePopup);
3179                    mActionModePopup.dismiss();
3180                } else if (mActionModeView != null) {
3181                    mActionModeView.setVisibility(GONE);
3182                }
3183                if (mActionModeView != null) {
3184                    mActionModeView.removeAllViews();
3185                }
3186                if (getCallback() != null && !isDestroyed()) {
3187                    try {
3188                        getCallback().onActionModeFinished(mActionMode);
3189                    } catch (AbstractMethodError ame) {
3190                        // Older apps might not implement this callback method.
3191                    }
3192                }
3193                mActionMode = null;
3194                requestFitSystemWindows();
3195            }
3196        }
3197    }
3198
3199    protected DecorView generateDecor() {
3200        return new DecorView(getContext(), -1);
3201    }
3202
3203    protected void setFeatureFromAttrs(int featureId, TypedArray attrs,
3204            int drawableAttr, int alphaAttr) {
3205        Drawable d = attrs.getDrawable(drawableAttr);
3206        if (d != null) {
3207            requestFeature(featureId);
3208            setFeatureDefaultDrawable(featureId, d);
3209        }
3210        if ((getFeatures() & (1 << featureId)) != 0) {
3211            int alpha = attrs.getInt(alphaAttr, -1);
3212            if (alpha >= 0) {
3213                setFeatureDrawableAlpha(featureId, alpha);
3214            }
3215        }
3216    }
3217
3218    protected ViewGroup generateLayout(DecorView decor) {
3219        // Apply data from current theme.
3220
3221        TypedArray a = getWindowStyle();
3222
3223        if (false) {
3224            System.out.println("From style:");
3225            String s = "Attrs:";
3226            for (int i = 0; i < R.styleable.Window.length; i++) {
3227                s = s + " " + Integer.toHexString(R.styleable.Window[i]) + "="
3228                        + a.getString(i);
3229            }
3230            System.out.println(s);
3231        }
3232
3233        mIsFloating = a.getBoolean(R.styleable.Window_windowIsFloating, false);
3234        int flagsToUpdate = (FLAG_LAYOUT_IN_SCREEN|FLAG_LAYOUT_INSET_DECOR)
3235                & (~getForcedWindowFlags());
3236        if (mIsFloating) {
3237            setLayout(WRAP_CONTENT, WRAP_CONTENT);
3238            setFlags(0, flagsToUpdate);
3239        } else {
3240            setFlags(FLAG_LAYOUT_IN_SCREEN|FLAG_LAYOUT_INSET_DECOR, flagsToUpdate);
3241        }
3242
3243        if (a.getBoolean(R.styleable.Window_windowNoTitle, false)) {
3244            requestFeature(FEATURE_NO_TITLE);
3245        } else if (a.getBoolean(R.styleable.Window_windowActionBar, false)) {
3246            // Don't allow an action bar if there is no title.
3247            requestFeature(FEATURE_ACTION_BAR);
3248        }
3249
3250        if (a.getBoolean(R.styleable.Window_windowActionBarOverlay, false)) {
3251            requestFeature(FEATURE_ACTION_BAR_OVERLAY);
3252        }
3253
3254        if (a.getBoolean(R.styleable.Window_windowActionModeOverlay, false)) {
3255            requestFeature(FEATURE_ACTION_MODE_OVERLAY);
3256        }
3257
3258        if (a.getBoolean(R.styleable.Window_windowSwipeToDismiss, false)) {
3259            requestFeature(FEATURE_SWIPE_TO_DISMISS);
3260        }
3261
3262        if (a.getBoolean(R.styleable.Window_windowFullscreen, false)) {
3263            setFlags(FLAG_FULLSCREEN, FLAG_FULLSCREEN & (~getForcedWindowFlags()));
3264        }
3265
3266        if (a.getBoolean(R.styleable.Window_windowTranslucentStatus,
3267                false)) {
3268            setFlags(FLAG_TRANSLUCENT_STATUS, FLAG_TRANSLUCENT_STATUS
3269                    & (~getForcedWindowFlags()));
3270        }
3271
3272        if (a.getBoolean(R.styleable.Window_windowTranslucentNavigation,
3273                false)) {
3274            setFlags(FLAG_TRANSLUCENT_NAVIGATION, FLAG_TRANSLUCENT_NAVIGATION
3275                    & (~getForcedWindowFlags()));
3276        }
3277
3278        if (a.getBoolean(R.styleable.Window_windowOverscan, false)) {
3279            setFlags(FLAG_LAYOUT_IN_OVERSCAN, FLAG_LAYOUT_IN_OVERSCAN&(~getForcedWindowFlags()));
3280        }
3281
3282        if (a.getBoolean(R.styleable.Window_windowShowWallpaper, false)) {
3283            setFlags(FLAG_SHOW_WALLPAPER, FLAG_SHOW_WALLPAPER&(~getForcedWindowFlags()));
3284        }
3285
3286        if (a.getBoolean(R.styleable.Window_windowEnableSplitTouch,
3287                getContext().getApplicationInfo().targetSdkVersion
3288                        >= android.os.Build.VERSION_CODES.HONEYCOMB)) {
3289            setFlags(FLAG_SPLIT_TOUCH, FLAG_SPLIT_TOUCH&(~getForcedWindowFlags()));
3290        }
3291
3292        a.getValue(R.styleable.Window_windowMinWidthMajor, mMinWidthMajor);
3293        a.getValue(R.styleable.Window_windowMinWidthMinor, mMinWidthMinor);
3294        if (a.hasValue(R.styleable.Window_windowFixedWidthMajor)) {
3295            if (mFixedWidthMajor == null) mFixedWidthMajor = new TypedValue();
3296            a.getValue(R.styleable.Window_windowFixedWidthMajor,
3297                    mFixedWidthMajor);
3298        }
3299        if (a.hasValue(R.styleable.Window_windowFixedWidthMinor)) {
3300            if (mFixedWidthMinor == null) mFixedWidthMinor = new TypedValue();
3301            a.getValue(R.styleable.Window_windowFixedWidthMinor,
3302                    mFixedWidthMinor);
3303        }
3304        if (a.hasValue(R.styleable.Window_windowFixedHeightMajor)) {
3305            if (mFixedHeightMajor == null) mFixedHeightMajor = new TypedValue();
3306            a.getValue(R.styleable.Window_windowFixedHeightMajor,
3307                    mFixedHeightMajor);
3308        }
3309        if (a.hasValue(R.styleable.Window_windowFixedHeightMinor)) {
3310            if (mFixedHeightMinor == null) mFixedHeightMinor = new TypedValue();
3311            a.getValue(R.styleable.Window_windowFixedHeightMinor,
3312                    mFixedHeightMinor);
3313        }
3314        if (a.getBoolean(R.styleable.Window_windowContentTransitions, false)) {
3315            requestFeature(FEATURE_CONTENT_TRANSITIONS);
3316        }
3317        if (a.getBoolean(R.styleable.Window_windowActivityTransitions, false)) {
3318            requestFeature(FEATURE_ACTIVITY_TRANSITIONS);
3319        }
3320
3321        final WindowManager windowService = (WindowManager) getContext().getSystemService(
3322                Context.WINDOW_SERVICE);
3323        if (windowService != null) {
3324            final Display display = windowService.getDefaultDisplay();
3325            final boolean shouldUseBottomOutset =
3326                    display.getDisplayId() == Display.DEFAULT_DISPLAY
3327                            || (getForcedWindowFlags() & FLAG_FULLSCREEN) != 0;
3328            if (shouldUseBottomOutset && a.hasValue(R.styleable.Window_windowOutsetBottom)) {
3329                if (mOutsetBottom == null) mOutsetBottom = new TypedValue();
3330                a.getValue(R.styleable.Window_windowOutsetBottom,
3331                        mOutsetBottom);
3332            }
3333        }
3334
3335        final Context context = getContext();
3336        final int targetSdk = context.getApplicationInfo().targetSdkVersion;
3337        final boolean targetPreHoneycomb = targetSdk < android.os.Build.VERSION_CODES.HONEYCOMB;
3338        final boolean targetPreIcs = targetSdk < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH;
3339        final boolean targetPreL = targetSdk < android.os.Build.VERSION_CODES.LOLLIPOP;
3340        final boolean targetHcNeedsOptions = context.getResources().getBoolean(
3341                R.bool.target_honeycomb_needs_options_menu);
3342        final boolean noActionBar = !hasFeature(FEATURE_ACTION_BAR) || hasFeature(FEATURE_NO_TITLE);
3343
3344        if (targetPreHoneycomb || (targetPreIcs && targetHcNeedsOptions && noActionBar)) {
3345            addFlags(WindowManager.LayoutParams.FLAG_NEEDS_MENU_KEY);
3346        } else {
3347            clearFlags(WindowManager.LayoutParams.FLAG_NEEDS_MENU_KEY);
3348        }
3349
3350        // Non-floating windows on high end devices must put up decor beneath the system bars and
3351        // therefore must know about visibility changes of those.
3352        if (!mIsFloating && ActivityManager.isHighEndGfx()) {
3353            if (!targetPreL && a.getBoolean(
3354                    R.styleable.Window_windowDrawsSystemBarBackgrounds,
3355                    false)) {
3356                setFlags(FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS,
3357                        FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS & ~getForcedWindowFlags());
3358            }
3359        }
3360        if (!mForcedStatusBarColor) {
3361            mStatusBarColor = a.getColor(R.styleable.Window_statusBarColor, 0xFF000000);
3362        }
3363        if (!mForcedNavigationBarColor) {
3364            mNavigationBarColor = a.getColor(R.styleable.Window_navigationBarColor, 0xFF000000);
3365        }
3366
3367        if (mAlwaysReadCloseOnTouchAttr || getContext().getApplicationInfo().targetSdkVersion
3368                >= android.os.Build.VERSION_CODES.HONEYCOMB) {
3369            if (a.getBoolean(
3370                    R.styleable.Window_windowCloseOnTouchOutside,
3371                    false)) {
3372                setCloseOnTouchOutsideIfNotSet(true);
3373            }
3374        }
3375
3376        WindowManager.LayoutParams params = getAttributes();
3377
3378        if (!hasSoftInputMode()) {
3379            params.softInputMode = a.getInt(
3380                    R.styleable.Window_windowSoftInputMode,
3381                    params.softInputMode);
3382        }
3383
3384        if (a.getBoolean(R.styleable.Window_backgroundDimEnabled,
3385                mIsFloating)) {
3386            /* All dialogs should have the window dimmed */
3387            if ((getForcedWindowFlags()&WindowManager.LayoutParams.FLAG_DIM_BEHIND) == 0) {
3388                params.flags |= WindowManager.LayoutParams.FLAG_DIM_BEHIND;
3389            }
3390            if (!haveDimAmount()) {
3391                params.dimAmount = a.getFloat(
3392                        android.R.styleable.Window_backgroundDimAmount, 0.5f);
3393            }
3394        }
3395
3396        if (params.windowAnimations == 0) {
3397            params.windowAnimations = a.getResourceId(
3398                    R.styleable.Window_windowAnimationStyle, 0);
3399        }
3400
3401        // The rest are only done if this window is not embedded; otherwise,
3402        // the values are inherited from our container.
3403        if (getContainer() == null) {
3404            if (mBackgroundDrawable == null) {
3405                if (mBackgroundResource == 0) {
3406                    mBackgroundResource = a.getResourceId(
3407                            R.styleable.Window_windowBackground, 0);
3408                }
3409                if (mFrameResource == 0) {
3410                    mFrameResource = a.getResourceId(R.styleable.Window_windowFrame, 0);
3411                }
3412                mBackgroundFallbackResource = a.getResourceId(
3413                        R.styleable.Window_windowBackgroundFallback, 0);
3414                if (false) {
3415                    System.out.println("Background: "
3416                            + Integer.toHexString(mBackgroundResource) + " Frame: "
3417                            + Integer.toHexString(mFrameResource));
3418                }
3419            }
3420            mElevation = a.getDimension(R.styleable.Window_windowElevation, 0);
3421            mClipToOutline = a.getBoolean(R.styleable.Window_windowClipToOutline, false);
3422            mTextColor = a.getColor(R.styleable.Window_textColor, Color.TRANSPARENT);
3423        }
3424
3425        // Inflate the window decor.
3426
3427        int layoutResource;
3428        int features = getLocalFeatures();
3429        // System.out.println("Features: 0x" + Integer.toHexString(features));
3430        if ((features & (1 << FEATURE_SWIPE_TO_DISMISS)) != 0) {
3431            layoutResource = R.layout.screen_swipe_dismiss;
3432        } else if ((features & ((1 << FEATURE_LEFT_ICON) | (1 << FEATURE_RIGHT_ICON))) != 0) {
3433            if (mIsFloating) {
3434                TypedValue res = new TypedValue();
3435                getContext().getTheme().resolveAttribute(
3436                        R.attr.dialogTitleIconsDecorLayout, res, true);
3437                layoutResource = res.resourceId;
3438            } else {
3439                layoutResource = R.layout.screen_title_icons;
3440            }
3441            // XXX Remove this once action bar supports these features.
3442            removeFeature(FEATURE_ACTION_BAR);
3443            // System.out.println("Title Icons!");
3444        } else if ((features & ((1 << FEATURE_PROGRESS) | (1 << FEATURE_INDETERMINATE_PROGRESS))) != 0
3445                && (features & (1 << FEATURE_ACTION_BAR)) == 0) {
3446            // Special case for a window with only a progress bar (and title).
3447            // XXX Need to have a no-title version of embedded windows.
3448            layoutResource = R.layout.screen_progress;
3449            // System.out.println("Progress!");
3450        } else if ((features & (1 << FEATURE_CUSTOM_TITLE)) != 0) {
3451            // Special case for a window with a custom title.
3452            // If the window is floating, we need a dialog layout
3453            if (mIsFloating) {
3454                TypedValue res = new TypedValue();
3455                getContext().getTheme().resolveAttribute(
3456                        R.attr.dialogCustomTitleDecorLayout, res, true);
3457                layoutResource = res.resourceId;
3458            } else {
3459                layoutResource = R.layout.screen_custom_title;
3460            }
3461            // XXX Remove this once action bar supports these features.
3462            removeFeature(FEATURE_ACTION_BAR);
3463        } else if ((features & (1 << FEATURE_NO_TITLE)) == 0) {
3464            // If no other features and not embedded, only need a title.
3465            // If the window is floating, we need a dialog layout
3466            if (mIsFloating) {
3467                TypedValue res = new TypedValue();
3468                getContext().getTheme().resolveAttribute(
3469                        R.attr.dialogTitleDecorLayout, res, true);
3470                layoutResource = res.resourceId;
3471            } else if ((features & (1 << FEATURE_ACTION_BAR)) != 0) {
3472                layoutResource = a.getResourceId(
3473                        R.styleable.Window_windowActionBarFullscreenDecorLayout,
3474                        R.layout.screen_action_bar);
3475            } else {
3476                layoutResource = R.layout.screen_title;
3477            }
3478            // System.out.println("Title!");
3479        } else if ((features & (1 << FEATURE_ACTION_MODE_OVERLAY)) != 0) {
3480            layoutResource = R.layout.screen_simple_overlay_action_mode;
3481        } else {
3482            // Embedded, so no decoration is needed.
3483            layoutResource = R.layout.screen_simple;
3484            // System.out.println("Simple!");
3485        }
3486
3487        mDecor.startChanging();
3488
3489        View in = mLayoutInflater.inflate(layoutResource, null);
3490        decor.addView(in, new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));
3491        mContentRoot = (ViewGroup) in;
3492
3493        ViewGroup contentParent = (ViewGroup)findViewById(ID_ANDROID_CONTENT);
3494        if (contentParent == null) {
3495            throw new RuntimeException("Window couldn't find content container view");
3496        }
3497
3498        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
3499            ProgressBar progress = getCircularProgressBar(false);
3500            if (progress != null) {
3501                progress.setIndeterminate(true);
3502            }
3503        }
3504
3505        if ((features & (1 << FEATURE_SWIPE_TO_DISMISS)) != 0) {
3506            registerSwipeCallbacks();
3507        }
3508
3509        // Remaining setup -- of background and title -- that only applies
3510        // to top-level windows.
3511        if (getContainer() == null) {
3512            final Drawable background;
3513            if (mBackgroundResource != 0) {
3514                background = getContext().getDrawable(mBackgroundResource);
3515            } else {
3516                background = mBackgroundDrawable;
3517            }
3518            mDecor.setWindowBackground(background);
3519
3520            final Drawable frame;
3521            if (mFrameResource != 0) {
3522                frame = getContext().getDrawable(mFrameResource);
3523            } else {
3524                frame = null;
3525            }
3526            mDecor.setWindowFrame(frame);
3527
3528            mDecor.setElevation(mElevation);
3529            mDecor.setClipToOutline(mClipToOutline);
3530
3531            if (mTitle != null) {
3532                setTitle(mTitle);
3533            }
3534
3535            if (mTitleColor == 0) {
3536                mTitleColor = mTextColor;
3537            }
3538            setTitleColor(mTitleColor);
3539        }
3540
3541        mDecor.finishChanging();
3542
3543        return contentParent;
3544    }
3545
3546    /** @hide */
3547    public void alwaysReadCloseOnTouchAttr() {
3548        mAlwaysReadCloseOnTouchAttr = true;
3549    }
3550
3551    private void installDecor() {
3552        if (mDecor == null) {
3553            mDecor = generateDecor();
3554            mDecor.setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
3555            mDecor.setIsRootNamespace(true);
3556            if (!mInvalidatePanelMenuPosted && mInvalidatePanelMenuFeatures != 0) {
3557                mDecor.postOnAnimation(mInvalidatePanelMenuRunnable);
3558            }
3559        }
3560        if (mContentParent == null) {
3561            mContentParent = generateLayout(mDecor);
3562
3563            // Set up decor part of UI to ignore fitsSystemWindows if appropriate.
3564            mDecor.makeOptionalFitsSystemWindows();
3565
3566            final DecorContentParent decorContentParent = (DecorContentParent) mDecor.findViewById(
3567                    R.id.decor_content_parent);
3568
3569            if (decorContentParent != null) {
3570                mDecorContentParent = decorContentParent;
3571                mDecorContentParent.setWindowCallback(getCallback());
3572                if (mDecorContentParent.getTitle() == null) {
3573                    mDecorContentParent.setWindowTitle(mTitle);
3574                }
3575
3576                final int localFeatures = getLocalFeatures();
3577                for (int i = 0; i < FEATURE_MAX; i++) {
3578                    if ((localFeatures & (1 << i)) != 0) {
3579                        mDecorContentParent.initFeature(i);
3580                    }
3581                }
3582
3583                mDecorContentParent.setUiOptions(mUiOptions);
3584
3585                if ((mResourcesSetFlags & FLAG_RESOURCE_SET_ICON) != 0 ||
3586                        (mIconRes != 0 && !mDecorContentParent.hasIcon())) {
3587                    mDecorContentParent.setIcon(mIconRes);
3588                } else if ((mResourcesSetFlags & FLAG_RESOURCE_SET_ICON) == 0 &&
3589                        mIconRes == 0 && !mDecorContentParent.hasIcon()) {
3590                    mDecorContentParent.setIcon(
3591                            getContext().getPackageManager().getDefaultActivityIcon());
3592                    mResourcesSetFlags |= FLAG_RESOURCE_SET_ICON_FALLBACK;
3593                }
3594                if ((mResourcesSetFlags & FLAG_RESOURCE_SET_LOGO) != 0 ||
3595                        (mLogoRes != 0 && !mDecorContentParent.hasLogo())) {
3596                    mDecorContentParent.setLogo(mLogoRes);
3597                }
3598
3599                // Invalidate if the panel menu hasn't been created before this.
3600                // Panel menu invalidation is deferred avoiding application onCreateOptionsMenu
3601                // being called in the middle of onCreate or similar.
3602                // A pending invalidation will typically be resolved before the posted message
3603                // would run normally in order to satisfy instance state restoration.
3604                PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
3605                if (!isDestroyed() && (st == null || st.menu == null)) {
3606                    invalidatePanelMenu(FEATURE_ACTION_BAR);
3607                }
3608            } else {
3609                mTitleView = (TextView)findViewById(R.id.title);
3610                if (mTitleView != null) {
3611                    mTitleView.setLayoutDirection(mDecor.getLayoutDirection());
3612                    if ((getLocalFeatures() & (1 << FEATURE_NO_TITLE)) != 0) {
3613                        View titleContainer = findViewById(
3614                                R.id.title_container);
3615                        if (titleContainer != null) {
3616                            titleContainer.setVisibility(View.GONE);
3617                        } else {
3618                            mTitleView.setVisibility(View.GONE);
3619                        }
3620                        if (mContentParent instanceof FrameLayout) {
3621                            ((FrameLayout)mContentParent).setForeground(null);
3622                        }
3623                    } else {
3624                        mTitleView.setText(mTitle);
3625                    }
3626                }
3627            }
3628
3629            if (mDecor.getBackground() == null && mBackgroundFallbackResource != 0) {
3630                mDecor.setBackgroundFallback(mBackgroundFallbackResource);
3631            }
3632
3633            // Only inflate or create a new TransitionManager if the caller hasn't
3634            // already set a custom one.
3635            if (hasFeature(FEATURE_ACTIVITY_TRANSITIONS)) {
3636                if (mTransitionManager == null) {
3637                    final int transitionRes = getWindowStyle().getResourceId(
3638                            R.styleable.Window_windowContentTransitionManager,
3639                            0);
3640                    if (transitionRes != 0) {
3641                        final TransitionInflater inflater = TransitionInflater.from(getContext());
3642                        mTransitionManager = inflater.inflateTransitionManager(transitionRes,
3643                                mContentParent);
3644                    } else {
3645                        mTransitionManager = new TransitionManager();
3646                    }
3647                }
3648
3649                mEnterTransition = getTransition(mEnterTransition, null,
3650                        R.styleable.Window_windowEnterTransition);
3651                mReturnTransition = getTransition(mReturnTransition, USE_DEFAULT_TRANSITION,
3652                        R.styleable.Window_windowReturnTransition);
3653                mExitTransition = getTransition(mExitTransition, null,
3654                        R.styleable.Window_windowExitTransition);
3655                mReenterTransition = getTransition(mReenterTransition, USE_DEFAULT_TRANSITION,
3656                        R.styleable.Window_windowReenterTransition);
3657                mSharedElementEnterTransition = getTransition(mSharedElementEnterTransition, null,
3658                        R.styleable.Window_windowSharedElementEnterTransition);
3659                mSharedElementReturnTransition = getTransition(mSharedElementReturnTransition,
3660                        USE_DEFAULT_TRANSITION,
3661                        R.styleable.Window_windowSharedElementReturnTransition);
3662                mSharedElementExitTransition = getTransition(mSharedElementExitTransition, null,
3663                        R.styleable.Window_windowSharedElementExitTransition);
3664                mSharedElementReenterTransition = getTransition(mSharedElementReenterTransition,
3665                        USE_DEFAULT_TRANSITION,
3666                        R.styleable.Window_windowSharedElementReenterTransition);
3667                if (mAllowEnterTransitionOverlap == null) {
3668                    mAllowEnterTransitionOverlap = getWindowStyle().getBoolean(
3669                            R.styleable.Window_windowAllowEnterTransitionOverlap, true);
3670                }
3671                if (mAllowReturnTransitionOverlap == null) {
3672                    mAllowReturnTransitionOverlap = getWindowStyle().getBoolean(
3673                            R.styleable.Window_windowAllowReturnTransitionOverlap, true);
3674                }
3675                if (mBackgroundFadeDurationMillis < 0) {
3676                    mBackgroundFadeDurationMillis = getWindowStyle().getInteger(
3677                            R.styleable.Window_windowTransitionBackgroundFadeDuration,
3678                            DEFAULT_BACKGROUND_FADE_DURATION_MS);
3679                }
3680                if (mSharedElementsUseOverlay == null) {
3681                    mSharedElementsUseOverlay = getWindowStyle().getBoolean(
3682                            R.styleable.Window_windowSharedElementsUseOverlay, true);
3683                }
3684            }
3685        }
3686    }
3687
3688    private Transition getTransition(Transition currentValue, Transition defaultValue, int id) {
3689        if (currentValue != defaultValue) {
3690            return currentValue;
3691        }
3692        int transitionId = getWindowStyle().getResourceId(id, -1);
3693        Transition transition = defaultValue;
3694        if (transitionId != -1 && transitionId != R.transition.no_transition) {
3695            TransitionInflater inflater = TransitionInflater.from(getContext());
3696            transition = inflater.inflateTransition(transitionId);
3697            if (transition instanceof TransitionSet &&
3698                    ((TransitionSet)transition).getTransitionCount() == 0) {
3699                transition = null;
3700            }
3701        }
3702        return transition;
3703    }
3704
3705    private Drawable loadImageURI(Uri uri) {
3706        try {
3707            return Drawable.createFromStream(
3708                    getContext().getContentResolver().openInputStream(uri), null);
3709        } catch (Exception e) {
3710            Log.w(TAG, "Unable to open content: " + uri);
3711        }
3712        return null;
3713    }
3714
3715    private DrawableFeatureState getDrawableState(int featureId, boolean required) {
3716        if ((getFeatures() & (1 << featureId)) == 0) {
3717            if (!required) {
3718                return null;
3719            }
3720            throw new RuntimeException("The feature has not been requested");
3721        }
3722
3723        DrawableFeatureState[] ar;
3724        if ((ar = mDrawables) == null || ar.length <= featureId) {
3725            DrawableFeatureState[] nar = new DrawableFeatureState[featureId + 1];
3726            if (ar != null) {
3727                System.arraycopy(ar, 0, nar, 0, ar.length);
3728            }
3729            mDrawables = ar = nar;
3730        }
3731
3732        DrawableFeatureState st = ar[featureId];
3733        if (st == null) {
3734            ar[featureId] = st = new DrawableFeatureState(featureId);
3735        }
3736        return st;
3737    }
3738
3739    /**
3740     * Gets a panel's state based on its feature ID.
3741     *
3742     * @param featureId The feature ID of the panel.
3743     * @param required Whether the panel is required (if it is required and it
3744     *            isn't in our features, this throws an exception).
3745     * @return The panel state.
3746     */
3747    private PanelFeatureState getPanelState(int featureId, boolean required) {
3748        return getPanelState(featureId, required, null);
3749    }
3750
3751    /**
3752     * Gets a panel's state based on its feature ID.
3753     *
3754     * @param featureId The feature ID of the panel.
3755     * @param required Whether the panel is required (if it is required and it
3756     *            isn't in our features, this throws an exception).
3757     * @param convertPanelState Optional: If the panel state does not exist, use
3758     *            this as the panel state.
3759     * @return The panel state.
3760     */
3761    private PanelFeatureState getPanelState(int featureId, boolean required,
3762            PanelFeatureState convertPanelState) {
3763        if ((getFeatures() & (1 << featureId)) == 0) {
3764            if (!required) {
3765                return null;
3766            }
3767            throw new RuntimeException("The feature has not been requested");
3768        }
3769
3770        PanelFeatureState[] ar;
3771        if ((ar = mPanels) == null || ar.length <= featureId) {
3772            PanelFeatureState[] nar = new PanelFeatureState[featureId + 1];
3773            if (ar != null) {
3774                System.arraycopy(ar, 0, nar, 0, ar.length);
3775            }
3776            mPanels = ar = nar;
3777        }
3778
3779        PanelFeatureState st = ar[featureId];
3780        if (st == null) {
3781            ar[featureId] = st = (convertPanelState != null)
3782                    ? convertPanelState
3783                    : new PanelFeatureState(featureId);
3784        }
3785        return st;
3786    }
3787
3788    @Override
3789    public final void setChildDrawable(int featureId, Drawable drawable) {
3790        DrawableFeatureState st = getDrawableState(featureId, true);
3791        st.child = drawable;
3792        updateDrawable(featureId, st, false);
3793    }
3794
3795    @Override
3796    public final void setChildInt(int featureId, int value) {
3797        updateInt(featureId, value, false);
3798    }
3799
3800    @Override
3801    public boolean isShortcutKey(int keyCode, KeyEvent event) {
3802        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
3803        return st.menu != null && st.menu.isShortcutKey(keyCode, event);
3804    }
3805
3806    private void updateDrawable(int featureId, DrawableFeatureState st, boolean fromResume) {
3807        // Do nothing if the decor is not yet installed... an update will
3808        // need to be forced when we eventually become active.
3809        if (mContentParent == null) {
3810            return;
3811        }
3812
3813        final int featureMask = 1 << featureId;
3814
3815        if ((getFeatures() & featureMask) == 0 && !fromResume) {
3816            return;
3817        }
3818
3819        Drawable drawable = null;
3820        if (st != null) {
3821            drawable = st.child;
3822            if (drawable == null)
3823                drawable = st.local;
3824            if (drawable == null)
3825                drawable = st.def;
3826        }
3827        if ((getLocalFeatures() & featureMask) == 0) {
3828            if (getContainer() != null) {
3829                if (isActive() || fromResume) {
3830                    getContainer().setChildDrawable(featureId, drawable);
3831                }
3832            }
3833        } else if (st != null && (st.cur != drawable || st.curAlpha != st.alpha)) {
3834            // System.out.println("Drawable changed: old=" + st.cur
3835            // + ", new=" + drawable);
3836            st.cur = drawable;
3837            st.curAlpha = st.alpha;
3838            onDrawableChanged(featureId, drawable, st.alpha);
3839        }
3840    }
3841
3842    private void updateInt(int featureId, int value, boolean fromResume) {
3843
3844        // Do nothing if the decor is not yet installed... an update will
3845        // need to be forced when we eventually become active.
3846        if (mContentParent == null) {
3847            return;
3848        }
3849
3850        final int featureMask = 1 << featureId;
3851
3852        if ((getFeatures() & featureMask) == 0 && !fromResume) {
3853            return;
3854        }
3855
3856        if ((getLocalFeatures() & featureMask) == 0) {
3857            if (getContainer() != null) {
3858                getContainer().setChildInt(featureId, value);
3859            }
3860        } else {
3861            onIntChanged(featureId, value);
3862        }
3863    }
3864
3865    private ImageView getLeftIconView() {
3866        if (mLeftIconView != null) {
3867            return mLeftIconView;
3868        }
3869        if (mContentParent == null) {
3870            installDecor();
3871        }
3872        return (mLeftIconView = (ImageView)findViewById(R.id.left_icon));
3873    }
3874
3875    @Override
3876    protected void dispatchWindowAttributesChanged(WindowManager.LayoutParams attrs) {
3877        super.dispatchWindowAttributesChanged(attrs);
3878        if (mDecor != null) {
3879            mDecor.updateColorViews(null /* insets */);
3880        }
3881    }
3882
3883    private ProgressBar getCircularProgressBar(boolean shouldInstallDecor) {
3884        if (mCircularProgressBar != null) {
3885            return mCircularProgressBar;
3886        }
3887        if (mContentParent == null && shouldInstallDecor) {
3888            installDecor();
3889        }
3890        mCircularProgressBar = (ProgressBar) findViewById(R.id.progress_circular);
3891        if (mCircularProgressBar != null) {
3892            mCircularProgressBar.setVisibility(View.INVISIBLE);
3893        }
3894        return mCircularProgressBar;
3895    }
3896
3897    private ProgressBar getHorizontalProgressBar(boolean shouldInstallDecor) {
3898        if (mHorizontalProgressBar != null) {
3899            return mHorizontalProgressBar;
3900        }
3901        if (mContentParent == null && shouldInstallDecor) {
3902            installDecor();
3903        }
3904        mHorizontalProgressBar = (ProgressBar) findViewById(R.id.progress_horizontal);
3905        if (mHorizontalProgressBar != null) {
3906            mHorizontalProgressBar.setVisibility(View.INVISIBLE);
3907        }
3908        return mHorizontalProgressBar;
3909    }
3910
3911    private ImageView getRightIconView() {
3912        if (mRightIconView != null) {
3913            return mRightIconView;
3914        }
3915        if (mContentParent == null) {
3916            installDecor();
3917        }
3918        return (mRightIconView = (ImageView)findViewById(R.id.right_icon));
3919    }
3920
3921    private void registerSwipeCallbacks() {
3922        SwipeDismissLayout swipeDismiss =
3923                (SwipeDismissLayout) findViewById(R.id.content);
3924        swipeDismiss.setOnDismissedListener(new SwipeDismissLayout.OnDismissedListener() {
3925            @Override
3926            public void onDismissed(SwipeDismissLayout layout) {
3927                dispatchOnWindowDismissed();
3928            }
3929        });
3930        swipeDismiss.setOnSwipeProgressChangedListener(
3931                new SwipeDismissLayout.OnSwipeProgressChangedListener() {
3932                    private static final float ALPHA_DECREASE = 0.5f;
3933                    private boolean mIsTranslucent = false;
3934                    @Override
3935                    public void onSwipeProgressChanged(
3936                            SwipeDismissLayout layout, float progress, float translate) {
3937                        WindowManager.LayoutParams newParams = getAttributes();
3938                        newParams.x = (int) translate;
3939                        newParams.alpha = 1 - (progress * ALPHA_DECREASE);
3940                        setAttributes(newParams);
3941
3942                        int flags = 0;
3943                        if (newParams.x == 0) {
3944                            flags = FLAG_FULLSCREEN;
3945                        } else {
3946                            flags = FLAG_LAYOUT_NO_LIMITS;
3947                        }
3948                        setFlags(flags, FLAG_FULLSCREEN | FLAG_LAYOUT_NO_LIMITS);
3949                    }
3950
3951                    @Override
3952                    public void onSwipeCancelled(SwipeDismissLayout layout) {
3953                        WindowManager.LayoutParams newParams = getAttributes();
3954                        newParams.x = 0;
3955                        newParams.alpha = 1;
3956                        setAttributes(newParams);
3957                        setFlags(FLAG_FULLSCREEN, FLAG_FULLSCREEN | FLAG_LAYOUT_NO_LIMITS);
3958                    }
3959                });
3960    }
3961
3962    /**
3963     * Helper method for calling the {@link Callback#onPanelClosed(int, Menu)}
3964     * callback. This method will grab whatever extra state is needed for the
3965     * callback that isn't given in the parameters. If the panel is not open,
3966     * this will not perform the callback.
3967     *
3968     * @param featureId Feature ID of the panel that was closed. Must be given.
3969     * @param panel Panel that was closed. Optional but useful if there is no
3970     *            menu given.
3971     * @param menu The menu that was closed. Optional, but give if you have.
3972     */
3973    private void callOnPanelClosed(int featureId, PanelFeatureState panel, Menu menu) {
3974        final Callback cb = getCallback();
3975        if (cb == null)
3976            return;
3977
3978        // Try to get a menu
3979        if (menu == null) {
3980            // Need a panel to grab the menu, so try to get that
3981            if (panel == null) {
3982                if ((featureId >= 0) && (featureId < mPanels.length)) {
3983                    panel = mPanels[featureId];
3984                }
3985            }
3986
3987            if (panel != null) {
3988                // menu still may be null, which is okay--we tried our best
3989                menu = panel.menu;
3990            }
3991        }
3992
3993        // If the panel is not open, do not callback
3994        if ((panel != null) && (!panel.isOpen))
3995            return;
3996
3997        if (!isDestroyed()) {
3998            cb.onPanelClosed(featureId, menu);
3999        }
4000    }
4001
4002    /**
4003     * Helper method for adding launch-search to most applications. Opens the
4004     * search window using default settings.
4005     *
4006     * @return true if search window opened
4007     */
4008    private boolean launchDefaultSearch() {
4009        boolean result;
4010        final Callback cb = getCallback();
4011        if (cb == null || isDestroyed()) {
4012            result = false;
4013        } else {
4014            sendCloseSystemWindows("search");
4015            result = cb.onSearchRequested();
4016        }
4017        if (!result && (getContext().getResources().getConfiguration().uiMode
4018                & Configuration.UI_MODE_TYPE_MASK) == Configuration.UI_MODE_TYPE_TELEVISION) {
4019            // On TVs, if the app doesn't implement search, we want to launch assist.
4020            return ((SearchManager)getContext().getSystemService(Context.SEARCH_SERVICE))
4021                    .launchAssistAction(0, null, UserHandle.myUserId());
4022        }
4023        return result;
4024    }
4025
4026    @Override
4027    public void setVolumeControlStream(int streamType) {
4028        mVolumeControlStreamType = streamType;
4029    }
4030
4031    @Override
4032    public int getVolumeControlStream() {
4033        return mVolumeControlStreamType;
4034    }
4035
4036    @Override
4037    public void setMediaController(MediaController controller) {
4038        mMediaController = controller;
4039    }
4040
4041    @Override
4042    public MediaController getMediaController() {
4043        return mMediaController;
4044    }
4045
4046    private boolean isTranslucent() {
4047        TypedArray a = getWindowStyle();
4048        return a.getBoolean(a.getResourceId(
4049                R.styleable.Window_windowIsTranslucent, 0), false);
4050    }
4051
4052    @Override
4053    public void setEnterTransition(Transition enterTransition) {
4054        mEnterTransition = enterTransition;
4055    }
4056
4057    @Override
4058    public void setReturnTransition(Transition transition) {
4059        mReturnTransition = transition;
4060    }
4061
4062    @Override
4063    public void setExitTransition(Transition exitTransition) {
4064        mExitTransition = exitTransition;
4065    }
4066
4067    @Override
4068    public void setReenterTransition(Transition transition) {
4069        mReenterTransition = transition;
4070    }
4071
4072    @Override
4073    public void setSharedElementEnterTransition(Transition sharedElementEnterTransition) {
4074        mSharedElementEnterTransition = sharedElementEnterTransition;
4075    }
4076
4077    @Override
4078    public void setSharedElementReturnTransition(Transition transition) {
4079        mSharedElementReturnTransition = transition;
4080    }
4081
4082    @Override
4083    public void setSharedElementExitTransition(Transition sharedElementExitTransition) {
4084        mSharedElementExitTransition = sharedElementExitTransition;
4085    }
4086
4087    @Override
4088    public void setSharedElementReenterTransition(Transition transition) {
4089        mSharedElementReenterTransition = transition;
4090    }
4091
4092    @Override
4093    public Transition getEnterTransition() {
4094        return mEnterTransition;
4095    }
4096
4097    @Override
4098    public Transition getReturnTransition() {
4099        return mReturnTransition == USE_DEFAULT_TRANSITION ? getEnterTransition()
4100                : mReturnTransition;
4101    }
4102
4103    @Override
4104    public Transition getExitTransition() {
4105        return mExitTransition;
4106    }
4107
4108    @Override
4109    public Transition getReenterTransition() {
4110        return mReenterTransition == USE_DEFAULT_TRANSITION ? getExitTransition()
4111                : mReenterTransition;
4112    }
4113
4114    @Override
4115    public Transition getSharedElementEnterTransition() {
4116        return mSharedElementEnterTransition;
4117    }
4118
4119    @Override
4120    public Transition getSharedElementReturnTransition() {
4121        return mSharedElementReturnTransition == USE_DEFAULT_TRANSITION
4122                ? getSharedElementEnterTransition() : mSharedElementReturnTransition;
4123    }
4124
4125    @Override
4126    public Transition getSharedElementExitTransition() {
4127        return mSharedElementExitTransition;
4128    }
4129
4130    @Override
4131    public Transition getSharedElementReenterTransition() {
4132        return mSharedElementReenterTransition == USE_DEFAULT_TRANSITION
4133                ? getSharedElementExitTransition() : mSharedElementReenterTransition;
4134    }
4135
4136    @Override
4137    public void setAllowEnterTransitionOverlap(boolean allow) {
4138        mAllowEnterTransitionOverlap = allow;
4139    }
4140
4141    @Override
4142    public boolean getAllowEnterTransitionOverlap() {
4143        return (mAllowEnterTransitionOverlap == null) ? true : mAllowEnterTransitionOverlap;
4144    }
4145
4146    @Override
4147    public void setAllowReturnTransitionOverlap(boolean allowExitTransitionOverlap) {
4148        mAllowReturnTransitionOverlap = allowExitTransitionOverlap;
4149    }
4150
4151    @Override
4152    public boolean getAllowReturnTransitionOverlap() {
4153        return (mAllowReturnTransitionOverlap == null) ? true : mAllowReturnTransitionOverlap;
4154    }
4155
4156    @Override
4157    public long getTransitionBackgroundFadeDuration() {
4158        return (mBackgroundFadeDurationMillis < 0) ? DEFAULT_BACKGROUND_FADE_DURATION_MS
4159                : mBackgroundFadeDurationMillis;
4160    }
4161
4162    @Override
4163    public void setTransitionBackgroundFadeDuration(long fadeDurationMillis) {
4164        if (fadeDurationMillis < 0) {
4165            throw new IllegalArgumentException("negative durations are not allowed");
4166        }
4167        mBackgroundFadeDurationMillis = fadeDurationMillis;
4168    }
4169
4170    @Override
4171    public void setSharedElementsUseOverlay(boolean sharedElementsUseOverlay) {
4172        mSharedElementsUseOverlay = sharedElementsUseOverlay;
4173    }
4174
4175    @Override
4176    public boolean getSharedElementsUseOverlay() {
4177        return (mSharedElementsUseOverlay == null) ? true : mSharedElementsUseOverlay;
4178    }
4179
4180    private static final class DrawableFeatureState {
4181        DrawableFeatureState(int _featureId) {
4182            featureId = _featureId;
4183        }
4184
4185        final int featureId;
4186
4187        int resid;
4188
4189        Uri uri;
4190
4191        Drawable local;
4192
4193        Drawable child;
4194
4195        Drawable def;
4196
4197        Drawable cur;
4198
4199        int alpha = 255;
4200
4201        int curAlpha = 255;
4202    }
4203
4204    private static final class PanelFeatureState {
4205
4206        /** Feature ID for this panel. */
4207        int featureId;
4208
4209        // Information pulled from the style for this panel.
4210
4211        int background;
4212
4213        /** The background when the panel spans the entire available width. */
4214        int fullBackground;
4215
4216        int gravity;
4217
4218        int x;
4219
4220        int y;
4221
4222        int windowAnimations;
4223
4224        /** Dynamic state of the panel. */
4225        DecorView decorView;
4226
4227        /** The panel that was returned by onCreatePanelView(). */
4228        View createdPanelView;
4229
4230        /** The panel that we are actually showing. */
4231        View shownPanelView;
4232
4233        /** Use {@link #setMenu} to set this. */
4234        MenuBuilder menu;
4235
4236        IconMenuPresenter iconMenuPresenter;
4237        ListMenuPresenter listMenuPresenter;
4238
4239        /** true if this menu will show in single-list compact mode */
4240        boolean isCompact;
4241
4242        /** Theme resource ID for list elements of the panel menu */
4243        int listPresenterTheme;
4244
4245        /**
4246         * Whether the panel has been prepared (see
4247         * {@link PhoneWindow#preparePanel}).
4248         */
4249        boolean isPrepared;
4250
4251        /**
4252         * Whether an item's action has been performed. This happens in obvious
4253         * scenarios (user clicks on menu item), but can also happen with
4254         * chording menu+(shortcut key).
4255         */
4256        boolean isHandled;
4257
4258        boolean isOpen;
4259
4260        /**
4261         * True if the menu is in expanded mode, false if the menu is in icon
4262         * mode
4263         */
4264        boolean isInExpandedMode;
4265
4266        public boolean qwertyMode;
4267
4268        boolean refreshDecorView;
4269
4270        boolean refreshMenuContent;
4271
4272        boolean wasLastOpen;
4273
4274        boolean wasLastExpanded;
4275
4276        /**
4277         * Contains the state of the menu when told to freeze.
4278         */
4279        Bundle frozenMenuState;
4280
4281        /**
4282         * Contains the state of associated action views when told to freeze.
4283         * These are saved across invalidations.
4284         */
4285        Bundle frozenActionViewState;
4286
4287        PanelFeatureState(int featureId) {
4288            this.featureId = featureId;
4289
4290            refreshDecorView = false;
4291        }
4292
4293        public boolean isInListMode() {
4294            return isInExpandedMode || isCompact;
4295        }
4296
4297        public boolean hasPanelItems() {
4298            if (shownPanelView == null) return false;
4299            if (createdPanelView != null) return true;
4300
4301            if (isCompact || isInExpandedMode) {
4302                return listMenuPresenter.getAdapter().getCount() > 0;
4303            } else {
4304                return ((ViewGroup) shownPanelView).getChildCount() > 0;
4305            }
4306        }
4307
4308        /**
4309         * Unregister and free attached MenuPresenters. They will be recreated as needed.
4310         */
4311        public void clearMenuPresenters() {
4312            if (menu != null) {
4313                menu.removeMenuPresenter(iconMenuPresenter);
4314                menu.removeMenuPresenter(listMenuPresenter);
4315            }
4316            iconMenuPresenter = null;
4317            listMenuPresenter = null;
4318        }
4319
4320        void setStyle(Context context) {
4321            TypedArray a = context.obtainStyledAttributes(R.styleable.Theme);
4322            background = a.getResourceId(
4323                    R.styleable.Theme_panelBackground, 0);
4324            fullBackground = a.getResourceId(
4325                    R.styleable.Theme_panelFullBackground, 0);
4326            windowAnimations = a.getResourceId(
4327                    R.styleable.Theme_windowAnimationStyle, 0);
4328            isCompact = a.getBoolean(
4329                    R.styleable.Theme_panelMenuIsCompact, false);
4330            listPresenterTheme = a.getResourceId(
4331                    R.styleable.Theme_panelMenuListTheme,
4332                    R.style.Theme_ExpandedMenu);
4333            a.recycle();
4334        }
4335
4336        void setMenu(MenuBuilder menu) {
4337            if (menu == this.menu) return;
4338
4339            if (this.menu != null) {
4340                this.menu.removeMenuPresenter(iconMenuPresenter);
4341                this.menu.removeMenuPresenter(listMenuPresenter);
4342            }
4343            this.menu = menu;
4344            if (menu != null) {
4345                if (iconMenuPresenter != null) menu.addMenuPresenter(iconMenuPresenter);
4346                if (listMenuPresenter != null) menu.addMenuPresenter(listMenuPresenter);
4347            }
4348        }
4349
4350        MenuView getListMenuView(Context context, MenuPresenter.Callback cb) {
4351            if (menu == null) return null;
4352
4353            if (!isCompact) {
4354                getIconMenuView(context, cb); // Need this initialized to know where our offset goes
4355            }
4356
4357            if (listMenuPresenter == null) {
4358                listMenuPresenter = new ListMenuPresenter(
4359                        R.layout.list_menu_item_layout, listPresenterTheme);
4360                listMenuPresenter.setCallback(cb);
4361                listMenuPresenter.setId(R.id.list_menu_presenter);
4362                menu.addMenuPresenter(listMenuPresenter);
4363            }
4364
4365            if (iconMenuPresenter != null) {
4366                listMenuPresenter.setItemIndexOffset(
4367                        iconMenuPresenter.getNumActualItemsShown());
4368            }
4369            MenuView result = listMenuPresenter.getMenuView(decorView);
4370
4371            return result;
4372        }
4373
4374        MenuView getIconMenuView(Context context, MenuPresenter.Callback cb) {
4375            if (menu == null) return null;
4376
4377            if (iconMenuPresenter == null) {
4378                iconMenuPresenter = new IconMenuPresenter(context);
4379                iconMenuPresenter.setCallback(cb);
4380                iconMenuPresenter.setId(R.id.icon_menu_presenter);
4381                menu.addMenuPresenter(iconMenuPresenter);
4382            }
4383
4384            MenuView result = iconMenuPresenter.getMenuView(decorView);
4385
4386            return result;
4387        }
4388
4389        Parcelable onSaveInstanceState() {
4390            SavedState savedState = new SavedState();
4391            savedState.featureId = featureId;
4392            savedState.isOpen = isOpen;
4393            savedState.isInExpandedMode = isInExpandedMode;
4394
4395            if (menu != null) {
4396                savedState.menuState = new Bundle();
4397                menu.savePresenterStates(savedState.menuState);
4398            }
4399
4400            return savedState;
4401        }
4402
4403        void onRestoreInstanceState(Parcelable state) {
4404            SavedState savedState = (SavedState) state;
4405            featureId = savedState.featureId;
4406            wasLastOpen = savedState.isOpen;
4407            wasLastExpanded = savedState.isInExpandedMode;
4408            frozenMenuState = savedState.menuState;
4409
4410            /*
4411             * A LocalActivityManager keeps the same instance of this class around.
4412             * The first time the menu is being shown after restoring, the
4413             * Activity.onCreateOptionsMenu should be called. But, if it is the
4414             * same instance then menu != null and we won't call that method.
4415             * We clear any cached views here. The caller should invalidatePanelMenu.
4416             */
4417            createdPanelView = null;
4418            shownPanelView = null;
4419            decorView = null;
4420        }
4421
4422        void applyFrozenState() {
4423            if (menu != null && frozenMenuState != null) {
4424                menu.restorePresenterStates(frozenMenuState);
4425                frozenMenuState = null;
4426            }
4427        }
4428
4429        private static class SavedState implements Parcelable {
4430            int featureId;
4431            boolean isOpen;
4432            boolean isInExpandedMode;
4433            Bundle menuState;
4434
4435            public int describeContents() {
4436                return 0;
4437            }
4438
4439            public void writeToParcel(Parcel dest, int flags) {
4440                dest.writeInt(featureId);
4441                dest.writeInt(isOpen ? 1 : 0);
4442                dest.writeInt(isInExpandedMode ? 1 : 0);
4443
4444                if (isOpen) {
4445                    dest.writeBundle(menuState);
4446                }
4447            }
4448
4449            private static SavedState readFromParcel(Parcel source) {
4450                SavedState savedState = new SavedState();
4451                savedState.featureId = source.readInt();
4452                savedState.isOpen = source.readInt() == 1;
4453                savedState.isInExpandedMode = source.readInt() == 1;
4454
4455                if (savedState.isOpen) {
4456                    savedState.menuState = source.readBundle();
4457                }
4458
4459                return savedState;
4460            }
4461
4462            public static final Parcelable.Creator<SavedState> CREATOR
4463                    = new Parcelable.Creator<SavedState>() {
4464                public SavedState createFromParcel(Parcel in) {
4465                    return readFromParcel(in);
4466                }
4467
4468                public SavedState[] newArray(int size) {
4469                    return new SavedState[size];
4470                }
4471            };
4472        }
4473
4474    }
4475
4476    static class RotationWatcher extends IRotationWatcher.Stub {
4477        private Handler mHandler;
4478        private final Runnable mRotationChanged = new Runnable() {
4479            public void run() {
4480                dispatchRotationChanged();
4481            }
4482        };
4483        private final ArrayList<WeakReference<PhoneWindow>> mWindows =
4484                new ArrayList<WeakReference<PhoneWindow>>();
4485        private boolean mIsWatching;
4486
4487        @Override
4488        public void onRotationChanged(int rotation) throws RemoteException {
4489            mHandler.post(mRotationChanged);
4490        }
4491
4492        public void addWindow(PhoneWindow phoneWindow) {
4493            synchronized (mWindows) {
4494                if (!mIsWatching) {
4495                    try {
4496                        WindowManagerHolder.sWindowManager.watchRotation(this);
4497                        mHandler = new Handler();
4498                        mIsWatching = true;
4499                    } catch (RemoteException ex) {
4500                        Log.e(TAG, "Couldn't start watching for device rotation", ex);
4501                    }
4502                }
4503                mWindows.add(new WeakReference<PhoneWindow>(phoneWindow));
4504            }
4505        }
4506
4507        public void removeWindow(PhoneWindow phoneWindow) {
4508            synchronized (mWindows) {
4509                int i = 0;
4510                while (i < mWindows.size()) {
4511                    final WeakReference<PhoneWindow> ref = mWindows.get(i);
4512                    final PhoneWindow win = ref.get();
4513                    if (win == null || win == phoneWindow) {
4514                        mWindows.remove(i);
4515                    } else {
4516                        i++;
4517                    }
4518                }
4519            }
4520        }
4521
4522        void dispatchRotationChanged() {
4523            synchronized (mWindows) {
4524                int i = 0;
4525                while (i < mWindows.size()) {
4526                    final WeakReference<PhoneWindow> ref = mWindows.get(i);
4527                    final PhoneWindow win = ref.get();
4528                    if (win != null) {
4529                        win.onOptionsPanelRotationChanged();
4530                        i++;
4531                    } else {
4532                        mWindows.remove(i);
4533                    }
4534                }
4535            }
4536        }
4537    }
4538
4539    /**
4540     * Simple implementation of MenuBuilder.Callback that:
4541     * <li> Opens a submenu when selected.
4542     * <li> Calls back to the callback's onMenuItemSelected when an item is
4543     * selected.
4544     */
4545    private final class DialogMenuCallback implements MenuBuilder.Callback, MenuPresenter.Callback {
4546        private int mFeatureId;
4547        private MenuDialogHelper mSubMenuHelper;
4548
4549        public DialogMenuCallback(int featureId) {
4550            mFeatureId = featureId;
4551        }
4552
4553        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
4554            if (menu.getRootMenu() != menu) {
4555                onCloseSubMenu(menu);
4556            }
4557
4558            if (allMenusAreClosing) {
4559                Callback callback = getCallback();
4560                if (callback != null && !isDestroyed()) {
4561                    callback.onPanelClosed(mFeatureId, menu);
4562                }
4563
4564                if (menu == mContextMenu) {
4565                    dismissContextMenu();
4566                }
4567
4568                // Dismiss the submenu, if it is showing
4569                if (mSubMenuHelper != null) {
4570                    mSubMenuHelper.dismiss();
4571                    mSubMenuHelper = null;
4572                }
4573            }
4574        }
4575
4576        public void onCloseSubMenu(MenuBuilder menu) {
4577            Callback callback = getCallback();
4578            if (callback != null && !isDestroyed()) {
4579                callback.onPanelClosed(mFeatureId, menu.getRootMenu());
4580            }
4581        }
4582
4583        public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
4584            Callback callback = getCallback();
4585            return (callback != null && !isDestroyed())
4586                    && callback.onMenuItemSelected(mFeatureId, item);
4587        }
4588
4589        public void onMenuModeChange(MenuBuilder menu) {
4590        }
4591
4592        public boolean onOpenSubMenu(MenuBuilder subMenu) {
4593            if (subMenu == null) return false;
4594
4595            // Set a simple callback for the submenu
4596            subMenu.setCallback(this);
4597
4598            // The window manager will give us a valid window token
4599            mSubMenuHelper = new MenuDialogHelper(subMenu);
4600            mSubMenuHelper.show(null);
4601
4602            return true;
4603        }
4604    }
4605
4606    void sendCloseSystemWindows() {
4607        PhoneWindowManager.sendCloseSystemWindows(getContext(), null);
4608    }
4609
4610    void sendCloseSystemWindows(String reason) {
4611        PhoneWindowManager.sendCloseSystemWindows(getContext(), reason);
4612    }
4613
4614    @Override
4615    public int getStatusBarColor() {
4616        return mStatusBarColor;
4617    }
4618
4619    @Override
4620    public void setStatusBarColor(int color) {
4621        mStatusBarColor = color;
4622        mForcedStatusBarColor = true;
4623        if (mDecor != null) {
4624            mDecor.updateColorViews(null);
4625        }
4626    }
4627
4628    @Override
4629    public int getNavigationBarColor() {
4630        return mNavigationBarColor;
4631    }
4632
4633    @Override
4634    public void setNavigationBarColor(int color) {
4635        mNavigationBarColor = color;
4636        mForcedNavigationBarColor = true;
4637        if (mDecor != null) {
4638            mDecor.updateColorViews(null);
4639        }
4640    }
4641}
4642