PhoneWindow.java revision 0048da2114b54357e4901f40930afc7d503e0e24
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 com.android.internal.R;
26import com.android.internal.view.RootViewSurfaceTaker;
27import com.android.internal.view.StandaloneActionMode;
28import com.android.internal.view.menu.ContextMenuBuilder;
29import com.android.internal.view.menu.IconMenuPresenter;
30import com.android.internal.view.menu.ListMenuPresenter;
31import com.android.internal.view.menu.MenuBuilder;
32import com.android.internal.view.menu.MenuDialogHelper;
33import com.android.internal.view.menu.MenuPresenter;
34import com.android.internal.view.menu.MenuView;
35import com.android.internal.widget.ActionBarContextView;
36import com.android.internal.widget.DecorContentParent;
37import com.android.internal.widget.SwipeDismissLayout;
38
39import android.app.ActivityManager;
40import android.app.KeyguardManager;
41import android.content.Context;
42import android.content.pm.PackageManager;
43import android.content.res.Configuration;
44import android.content.res.Resources.Theme;
45import android.content.res.TypedArray;
46import android.graphics.Canvas;
47import android.graphics.Color;
48import android.graphics.PixelFormat;
49import android.graphics.Rect;
50import android.graphics.drawable.Drawable;
51import android.media.AudioManager;
52import android.media.session.MediaController;
53import android.media.session.MediaSession;
54import android.media.session.MediaSessionLegacyHelper;
55import android.net.Uri;
56import android.os.Bundle;
57import android.os.Handler;
58import android.os.Parcel;
59import android.os.Parcelable;
60import android.os.RemoteException;
61import android.os.ServiceManager;
62import android.transition.Scene;
63import android.transition.Transition;
64import android.transition.TransitionInflater;
65import android.transition.TransitionManager;
66import android.util.AndroidRuntimeException;
67import android.util.DisplayMetrics;
68import android.util.EventLog;
69import android.util.Log;
70import android.util.SparseArray;
71import android.util.TypedValue;
72import android.view.ActionMode;
73import android.view.ContextThemeWrapper;
74import android.view.Display;
75import android.view.Gravity;
76import android.view.IRotationWatcher;
77import android.view.IWindowManager;
78import android.view.InputEvent;
79import android.view.InputQueue;
80import android.view.KeyCharacterMap;
81import android.view.KeyEvent;
82import android.view.LayoutInflater;
83import android.view.Menu;
84import android.view.MenuItem;
85import android.view.MotionEvent;
86import android.view.SurfaceHolder;
87import android.view.View;
88import android.view.ViewConfiguration;
89import android.view.ViewGroup;
90import android.view.ViewManager;
91import android.view.ViewParent;
92import android.view.ViewRootImpl;
93import android.view.ViewStub;
94import android.view.Window;
95import android.view.WindowInsets;
96import android.view.WindowManager;
97import android.view.accessibility.AccessibilityEvent;
98import android.view.accessibility.AccessibilityManager;
99import android.view.animation.Animation;
100import android.view.animation.AnimationUtils;
101import android.widget.FrameLayout;
102import android.widget.ImageView;
103import android.widget.PopupWindow;
104import android.widget.ProgressBar;
105import android.widget.TextView;
106
107import java.lang.ref.WeakReference;
108import java.util.ArrayList;
109
110/**
111 * Android-specific Window.
112 * <p>
113 * todo: need to pull the generic functionality out into a base class
114 * in android.widget.
115 */
116public class PhoneWindow extends Window implements MenuBuilder.Callback {
117
118    private final static String TAG = "PhoneWindow";
119
120    private final static boolean SWEEP_OPEN_MENU = false;
121
122    private final static int DEFAULT_BACKGROUND_FADE_DURATION_MS = 300;
123
124    private static final int CUSTOM_TITLE_COMPATIBLE_FEATURES = DEFAULT_FEATURES |
125            (1 << FEATURE_CUSTOM_TITLE) |
126            (1 << FEATURE_CONTENT_TRANSITIONS) |
127            (1 << FEATURE_ACTION_MODE_OVERLAY);
128
129    /**
130     * Simple callback used by the context menu and its submenus. The options
131     * menu submenus do not use this (their behavior is more complex).
132     */
133    final DialogMenuCallback mContextMenuCallback = new DialogMenuCallback(FEATURE_CONTEXT_MENU);
134
135    final TypedValue mMinWidthMajor = new TypedValue();
136    final TypedValue mMinWidthMinor = new TypedValue();
137    TypedValue mFixedWidthMajor;
138    TypedValue mFixedWidthMinor;
139    TypedValue mFixedHeightMajor;
140    TypedValue mFixedHeightMinor;
141    TypedValue mOutsetBottom;
142
143    // This is the top-level view of the window, containing the window decor.
144    private DecorView mDecor;
145
146    // This is the view in which the window contents are placed. It is either
147    // mDecor itself, or a child of mDecor where the contents go.
148    private ViewGroup mContentParent;
149
150    SurfaceHolder.Callback2 mTakeSurfaceCallback;
151
152    InputQueue.Callback mTakeInputQueueCallback;
153
154    private boolean mIsFloating;
155
156    private LayoutInflater mLayoutInflater;
157
158    private TextView mTitleView;
159
160    private DecorContentParent mDecorContentParent;
161    private ActionMenuPresenterCallback mActionMenuPresenterCallback;
162    private PanelMenuPresenterCallback mPanelMenuPresenterCallback;
163
164    private TransitionManager mTransitionManager;
165    private Scene mContentScene;
166
167    // The icon resource has been explicitly set elsewhere
168    // and should not be overwritten with a default.
169    static final int FLAG_RESOURCE_SET_ICON = 1 << 0;
170
171    // The logo resource has been explicitly set elsewhere
172    // and should not be overwritten with a default.
173    static final int FLAG_RESOURCE_SET_LOGO = 1 << 1;
174
175    // The icon resource is currently configured to use the system fallback
176    // as no default was previously specified. Anything can override this.
177    static final int FLAG_RESOURCE_SET_ICON_FALLBACK = 1 << 2;
178
179    int mResourcesSetFlags;
180    int mIconRes;
181    int mLogoRes;
182
183    private DrawableFeatureState[] mDrawables;
184
185    private PanelFeatureState[] mPanels;
186
187    /**
188     * The panel that is prepared or opened (the most recent one if there are
189     * multiple panels). Shortcuts will go to this panel. It gets set in
190     * {@link #preparePanel} and cleared in {@link #closePanel}.
191     */
192    private PanelFeatureState mPreparedPanel;
193
194    /**
195     * The keycode that is currently held down (as a modifier) for chording. If
196     * this is 0, there is no key held down.
197     */
198    private int mPanelChordingKey;
199
200    private ImageView mLeftIconView;
201
202    private ImageView mRightIconView;
203
204    private ProgressBar mCircularProgressBar;
205
206    private ProgressBar mHorizontalProgressBar;
207
208    private int mBackgroundResource = 0;
209
210    private Drawable mBackgroundDrawable;
211
212    private float mElevation;
213
214    private int mFrameResource = 0;
215
216    private int mTextColor = 0;
217    private int mStatusBarColor = 0;
218    private int mNavigationBarColor = 0;
219    private boolean mForcedStatusBarColor = false;
220    private boolean mForcedNavigationBarColor = false;
221
222    private CharSequence mTitle = null;
223
224    private int mTitleColor = 0;
225
226    private boolean mAlwaysReadCloseOnTouchAttr = false;
227
228    private ContextMenuBuilder mContextMenu;
229    private MenuDialogHelper mContextMenuHelper;
230    private boolean mClosingActionMenu;
231
232    private int mVolumeControlStreamType = AudioManager.USE_DEFAULT_STREAM_TYPE;
233    private MediaController mMediaController;
234
235    private AudioManager mAudioManager;
236    private KeyguardManager mKeyguardManager;
237
238    private int mUiOptions = 0;
239
240    private boolean mInvalidatePanelMenuPosted;
241    private int mInvalidatePanelMenuFeatures;
242    private final Runnable mInvalidatePanelMenuRunnable = new Runnable() {
243        @Override public void run() {
244            for (int i = 0; i <= FEATURE_MAX; i++) {
245                if ((mInvalidatePanelMenuFeatures & 1 << i) != 0) {
246                    doInvalidatePanelMenu(i);
247                }
248            }
249            mInvalidatePanelMenuPosted = false;
250            mInvalidatePanelMenuFeatures = 0;
251        }
252    };
253
254    private Transition mEnterTransition;
255    private Transition mExitTransition;
256    private Transition mSharedElementEnterTransition;
257    private Transition mSharedElementExitTransition;
258    private Boolean mAllowExitTransitionOverlap;
259    private Boolean mAllowEnterTransitionOverlap;
260    private long mBackgroundFadeDurationMillis = -1;
261
262    static class WindowManagerHolder {
263        static final IWindowManager sWindowManager = IWindowManager.Stub.asInterface(
264                ServiceManager.getService("window"));
265    }
266
267    static final RotationWatcher sRotationWatcher = new RotationWatcher();
268
269    public PhoneWindow(Context context) {
270        super(context);
271        mLayoutInflater = LayoutInflater.from(context);
272    }
273
274    @Override
275    public final void setContainer(Window container) {
276        super.setContainer(container);
277    }
278
279    @Override
280    public boolean requestFeature(int featureId) {
281        if (mContentParent != null) {
282            throw new AndroidRuntimeException("requestFeature() must be called before adding content");
283        }
284        final int features = getFeatures();
285        final int newFeatures = features | (1 << featureId);
286        if ((newFeatures & (1 << FEATURE_CUSTOM_TITLE)) != 0 &&
287                (newFeatures & ~CUSTOM_TITLE_COMPATIBLE_FEATURES) != 0) {
288            // Another feature is enabled and the user is trying to enable the custom title feature
289            // or custom title feature is enabled and the user is trying to enable another feature
290            throw new AndroidRuntimeException(
291                    "You cannot combine custom titles with other title features");
292        }
293        if ((features & (1 << FEATURE_NO_TITLE)) != 0 && featureId == FEATURE_ACTION_BAR) {
294            return false; // Ignore. No title dominates.
295        }
296        if ((features & (1 << FEATURE_ACTION_BAR)) != 0 && featureId == FEATURE_NO_TITLE) {
297            // Remove the action bar feature if we have no title. No title dominates.
298            removeFeature(FEATURE_ACTION_BAR);
299        }
300
301        if ((features & (1 << FEATURE_ACTION_BAR)) != 0 && featureId == FEATURE_SWIPE_TO_DISMISS) {
302            throw new AndroidRuntimeException(
303                    "You cannot combine swipe dismissal and the action bar.");
304        }
305        if ((features & (1 << FEATURE_SWIPE_TO_DISMISS)) != 0 && featureId == FEATURE_ACTION_BAR) {
306            throw new AndroidRuntimeException(
307                    "You cannot combine swipe dismissal and the action bar.");
308        }
309
310        if (featureId == FEATURE_INDETERMINATE_PROGRESS &&
311                getContext().getPackageManager().hasSystemFeature(PackageManager.FEATURE_WATCH)) {
312            throw new AndroidRuntimeException("You cannot use indeterminate progress on a watch.");
313        }
314        return super.requestFeature(featureId);
315    }
316
317    @Override
318    public void setUiOptions(int uiOptions) {
319        mUiOptions = uiOptions;
320    }
321
322    @Override
323    public void setUiOptions(int uiOptions, int mask) {
324        mUiOptions = (mUiOptions & ~mask) | (uiOptions & mask);
325    }
326
327    @Override
328    public TransitionManager getTransitionManager() {
329        return mTransitionManager;
330    }
331
332    @Override
333    public void setTransitionManager(TransitionManager tm) {
334        mTransitionManager = tm;
335    }
336
337    @Override
338    public Scene getContentScene() {
339        return mContentScene;
340    }
341
342    @Override
343    public void setContentView(int layoutResID) {
344        // Note: FEATURE_CONTENT_TRANSITIONS may be set in the process of installing the window
345        // decor, when theme attributes and the like are crystalized. Do not check the feature
346        // before this happens.
347        if (mContentParent == null) {
348            installDecor();
349        } else if (!hasFeature(FEATURE_CONTENT_TRANSITIONS)) {
350            mContentParent.removeAllViews();
351        }
352
353        if (hasFeature(FEATURE_CONTENT_TRANSITIONS)) {
354            final Scene newScene = Scene.getSceneForLayout(mContentParent, layoutResID,
355                    getContext());
356            transitionTo(newScene);
357        } else {
358            mLayoutInflater.inflate(layoutResID, mContentParent);
359        }
360        final Callback cb = getCallback();
361        if (cb != null && !isDestroyed()) {
362            cb.onContentChanged();
363        }
364    }
365
366    @Override
367    public void setContentView(View view) {
368        setContentView(view, new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));
369    }
370
371    @Override
372    public void setContentView(View view, ViewGroup.LayoutParams params) {
373        // Note: FEATURE_CONTENT_TRANSITIONS may be set in the process of installing the window
374        // decor, when theme attributes and the like are crystalized. Do not check the feature
375        // before this happens.
376        if (mContentParent == null) {
377            installDecor();
378        } else if (!hasFeature(FEATURE_CONTENT_TRANSITIONS)) {
379            mContentParent.removeAllViews();
380        }
381
382        if (hasFeature(FEATURE_CONTENT_TRANSITIONS)) {
383            view.setLayoutParams(params);
384            final Scene newScene = new Scene(mContentParent, view);
385            transitionTo(newScene);
386        } else {
387            mContentParent.addView(view, params);
388        }
389        final Callback cb = getCallback();
390        if (cb != null && !isDestroyed()) {
391            cb.onContentChanged();
392        }
393    }
394
395    @Override
396    public void addContentView(View view, ViewGroup.LayoutParams params) {
397        if (mContentParent == null) {
398            installDecor();
399        }
400        if (hasFeature(FEATURE_CONTENT_TRANSITIONS)) {
401            // TODO Augment the scenes/transitions API to support this.
402            Log.v(TAG, "addContentView does not support content transitions");
403        }
404        mContentParent.addView(view, params);
405        final Callback cb = getCallback();
406        if (cb != null && !isDestroyed()) {
407            cb.onContentChanged();
408        }
409    }
410
411    private void transitionTo(Scene scene) {
412        if (mContentScene == null) {
413            scene.enter();
414        } else {
415            mTransitionManager.transitionTo(scene);
416        }
417        mContentScene = scene;
418    }
419
420    @Override
421    public View getCurrentFocus() {
422        return mDecor != null ? mDecor.findFocus() : null;
423    }
424
425    @Override
426    public void takeSurface(SurfaceHolder.Callback2 callback) {
427        mTakeSurfaceCallback = callback;
428    }
429
430    public void takeInputQueue(InputQueue.Callback callback) {
431        mTakeInputQueueCallback = callback;
432    }
433
434    @Override
435    public boolean isFloating() {
436        return mIsFloating;
437    }
438
439    /**
440     * Return a LayoutInflater instance that can be used to inflate XML view layout
441     * resources for use in this Window.
442     *
443     * @return LayoutInflater The shared LayoutInflater.
444     */
445    @Override
446    public LayoutInflater getLayoutInflater() {
447        return mLayoutInflater;
448    }
449
450    @Override
451    public void setTitle(CharSequence title) {
452        if (mTitleView != null) {
453            mTitleView.setText(title);
454        } else if (mDecorContentParent != null) {
455            mDecorContentParent.setWindowTitle(title);
456        }
457        mTitle = title;
458    }
459
460    @Override
461    @Deprecated
462    public void setTitleColor(int textColor) {
463        if (mTitleView != null) {
464            mTitleView.setTextColor(textColor);
465        }
466        mTitleColor = textColor;
467    }
468
469    /**
470     * Prepares the panel to either be opened or chorded. This creates the Menu
471     * instance for the panel and populates it via the Activity callbacks.
472     *
473     * @param st The panel state to prepare.
474     * @param event The event that triggered the preparing of the panel.
475     * @return Whether the panel was prepared. If the panel should not be shown,
476     *         returns false.
477     */
478    public final boolean preparePanel(PanelFeatureState st, KeyEvent event) {
479        if (isDestroyed()) {
480            return false;
481        }
482
483        // Already prepared (isPrepared will be reset to false later)
484        if (st.isPrepared) {
485            return true;
486        }
487
488        if ((mPreparedPanel != null) && (mPreparedPanel != st)) {
489            // Another Panel is prepared and possibly open, so close it
490            closePanel(mPreparedPanel, false);
491        }
492
493        final Callback cb = getCallback();
494
495        if (cb != null) {
496            st.createdPanelView = cb.onCreatePanelView(st.featureId);
497        }
498
499        final boolean isActionBarMenu =
500                (st.featureId == FEATURE_OPTIONS_PANEL || st.featureId == FEATURE_ACTION_BAR);
501
502        if (isActionBarMenu && mDecorContentParent != null) {
503            // Enforce ordering guarantees around events so that the action bar never
504            // dispatches menu-related events before the panel is prepared.
505            mDecorContentParent.setMenuPrepared();
506        }
507
508        if (st.createdPanelView == null) {
509            // Init the panel state's menu--return false if init failed
510            if (st.menu == null || st.refreshMenuContent) {
511                if (st.menu == null) {
512                    if (!initializePanelMenu(st) || (st.menu == null)) {
513                        return false;
514                    }
515                }
516
517                if (isActionBarMenu && mDecorContentParent != null) {
518                    if (mActionMenuPresenterCallback == null) {
519                        mActionMenuPresenterCallback = new ActionMenuPresenterCallback();
520                    }
521                    mDecorContentParent.setMenu(st.menu, mActionMenuPresenterCallback);
522                }
523
524                // Call callback, and return if it doesn't want to display menu.
525
526                // Creating the panel menu will involve a lot of manipulation;
527                // don't dispatch change events to presenters until we're done.
528                st.menu.stopDispatchingItemsChanged();
529                if ((cb == null) || !cb.onCreatePanelMenu(st.featureId, st.menu)) {
530                    // Ditch the menu created above
531                    st.setMenu(null);
532
533                    if (isActionBarMenu && mDecorContentParent != null) {
534                        // Don't show it in the action bar either
535                        mDecorContentParent.setMenu(null, mActionMenuPresenterCallback);
536                    }
537
538                    return false;
539                }
540
541                st.refreshMenuContent = false;
542            }
543
544            // Callback and return if the callback does not want to show the menu
545
546            // Preparing the panel menu can involve a lot of manipulation;
547            // don't dispatch change events to presenters until we're done.
548            st.menu.stopDispatchingItemsChanged();
549
550            // Restore action view state before we prepare. This gives apps
551            // an opportunity to override frozen/restored state in onPrepare.
552            if (st.frozenActionViewState != null) {
553                st.menu.restoreActionViewStates(st.frozenActionViewState);
554                st.frozenActionViewState = null;
555            }
556
557            if (!cb.onPreparePanel(st.featureId, st.createdPanelView, st.menu)) {
558                if (isActionBarMenu && mDecorContentParent != null) {
559                    // The app didn't want to show the menu for now but it still exists.
560                    // Clear it out of the action bar.
561                    mDecorContentParent.setMenu(null, mActionMenuPresenterCallback);
562                }
563                st.menu.startDispatchingItemsChanged();
564                return false;
565            }
566
567            // Set the proper keymap
568            KeyCharacterMap kmap = KeyCharacterMap.load(
569                    event != null ? event.getDeviceId() : KeyCharacterMap.VIRTUAL_KEYBOARD);
570            st.qwertyMode = kmap.getKeyboardType() != KeyCharacterMap.NUMERIC;
571            st.menu.setQwertyMode(st.qwertyMode);
572            st.menu.startDispatchingItemsChanged();
573        }
574
575        // Set other state
576        st.isPrepared = true;
577        st.isHandled = false;
578        mPreparedPanel = st;
579
580        return true;
581    }
582
583    @Override
584    public void onConfigurationChanged(Configuration newConfig) {
585        // Action bars handle their own menu state
586        if (mDecorContentParent == null) {
587            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
588            if ((st != null) && (st.menu != null)) {
589                if (st.isOpen) {
590                    // Freeze state
591                    final Bundle state = new Bundle();
592                    if (st.iconMenuPresenter != null) {
593                        st.iconMenuPresenter.saveHierarchyState(state);
594                    }
595                    if (st.listMenuPresenter != null) {
596                        st.listMenuPresenter.saveHierarchyState(state);
597                    }
598
599                    // Remove the menu views since they need to be recreated
600                    // according to the new configuration
601                    clearMenuViews(st);
602
603                    // Re-open the same menu
604                    reopenMenu(false);
605
606                    // Restore state
607                    if (st.iconMenuPresenter != null) {
608                        st.iconMenuPresenter.restoreHierarchyState(state);
609                    }
610                    if (st.listMenuPresenter != null) {
611                        st.listMenuPresenter.restoreHierarchyState(state);
612                    }
613
614                } else {
615                    // Clear menu views so on next menu opening, it will use
616                    // the proper layout
617                    clearMenuViews(st);
618                }
619            }
620        }
621    }
622
623    private static void clearMenuViews(PanelFeatureState st) {
624        // This can be called on config changes, so we should make sure
625        // the views will be reconstructed based on the new orientation, etc.
626
627        // Allow the callback to create a new panel view
628        st.createdPanelView = null;
629
630        // Causes the decor view to be recreated
631        st.refreshDecorView = true;
632
633        st.clearMenuPresenters();
634    }
635
636    @Override
637    public final void openPanel(int featureId, KeyEvent event) {
638        if (featureId == FEATURE_OPTIONS_PANEL && mDecorContentParent != null &&
639                mDecorContentParent.canShowOverflowMenu() &&
640                !ViewConfiguration.get(getContext()).hasPermanentMenuKey()) {
641            mDecorContentParent.showOverflowMenu();
642        } else {
643            openPanel(getPanelState(featureId, true), event);
644        }
645    }
646
647    private void openPanel(final PanelFeatureState st, KeyEvent event) {
648        // System.out.println("Open panel: isOpen=" + st.isOpen);
649
650        // Already open, return
651        if (st.isOpen || isDestroyed()) {
652            return;
653        }
654
655        // Don't open an options panel for honeycomb apps on xlarge devices.
656        // (The app should be using an action bar for menu items.)
657        if (st.featureId == FEATURE_OPTIONS_PANEL) {
658            Context context = getContext();
659            Configuration config = context.getResources().getConfiguration();
660            boolean isXLarge = (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) ==
661                    Configuration.SCREENLAYOUT_SIZE_XLARGE;
662            boolean isHoneycombApp = context.getApplicationInfo().targetSdkVersion >=
663                    android.os.Build.VERSION_CODES.HONEYCOMB;
664
665            if (isXLarge && isHoneycombApp) {
666                return;
667            }
668        }
669
670        Callback cb = getCallback();
671        if ((cb != null) && (!cb.onMenuOpened(st.featureId, st.menu))) {
672            // Callback doesn't want the menu to open, reset any state
673            closePanel(st, true);
674            return;
675        }
676
677        final WindowManager wm = getWindowManager();
678        if (wm == null) {
679            return;
680        }
681
682        // Prepare panel (should have been done before, but just in case)
683        if (!preparePanel(st, event)) {
684            return;
685        }
686
687        int width = WRAP_CONTENT;
688        if (st.decorView == null || st.refreshDecorView) {
689            if (st.decorView == null) {
690                // Initialize the panel decor, this will populate st.decorView
691                if (!initializePanelDecor(st) || (st.decorView == null))
692                    return;
693            } else if (st.refreshDecorView && (st.decorView.getChildCount() > 0)) {
694                // Decor needs refreshing, so remove its views
695                st.decorView.removeAllViews();
696            }
697
698            // This will populate st.shownPanelView
699            if (!initializePanelContent(st) || !st.hasPanelItems()) {
700                return;
701            }
702
703            ViewGroup.LayoutParams lp = st.shownPanelView.getLayoutParams();
704            if (lp == null) {
705                lp = new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
706            }
707
708            int backgroundResId;
709            if (lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
710                // If the contents is fill parent for the width, set the
711                // corresponding background
712                backgroundResId = st.fullBackground;
713                width = MATCH_PARENT;
714            } else {
715                // Otherwise, set the normal panel background
716                backgroundResId = st.background;
717            }
718            st.decorView.setWindowBackground(getContext().getDrawable(
719                    backgroundResId));
720
721            ViewParent shownPanelParent = st.shownPanelView.getParent();
722            if (shownPanelParent != null && shownPanelParent instanceof ViewGroup) {
723                ((ViewGroup) shownPanelParent).removeView(st.shownPanelView);
724            }
725            st.decorView.addView(st.shownPanelView, lp);
726
727            /*
728             * Give focus to the view, if it or one of its children does not
729             * already have it.
730             */
731            if (!st.shownPanelView.hasFocus()) {
732                st.shownPanelView.requestFocus();
733            }
734        } else if (!st.isInListMode()) {
735            width = MATCH_PARENT;
736        } else if (st.createdPanelView != null) {
737            // If we already had a panel view, carry width=MATCH_PARENT through
738            // as we did above when it was created.
739            ViewGroup.LayoutParams lp = st.createdPanelView.getLayoutParams();
740            if (lp != null && lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
741                width = MATCH_PARENT;
742            }
743        }
744
745        st.isHandled = false;
746
747        WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
748                width, WRAP_CONTENT,
749                st.x, st.y, WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG,
750                WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM
751                | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH,
752                st.decorView.mDefaultOpacity);
753
754        if (st.isCompact) {
755            lp.gravity = getOptionsPanelGravity();
756            sRotationWatcher.addWindow(this);
757        } else {
758            lp.gravity = st.gravity;
759        }
760
761        lp.windowAnimations = st.windowAnimations;
762
763        wm.addView(st.decorView, lp);
764        st.isOpen = true;
765        // Log.v(TAG, "Adding main menu to window manager.");
766    }
767
768    @Override
769    public final void closePanel(int featureId) {
770        if (featureId == FEATURE_OPTIONS_PANEL && mDecorContentParent != null &&
771                mDecorContentParent.canShowOverflowMenu() &&
772                !ViewConfiguration.get(getContext()).hasPermanentMenuKey()) {
773            mDecorContentParent.hideOverflowMenu();
774        } else if (featureId == FEATURE_CONTEXT_MENU) {
775            closeContextMenu();
776        } else {
777            closePanel(getPanelState(featureId, true), true);
778        }
779    }
780
781    /**
782     * Closes the given panel.
783     *
784     * @param st The panel to be closed.
785     * @param doCallback Whether to notify the callback that the panel was
786     *            closed. If the panel is in the process of re-opening or
787     *            opening another panel (e.g., menu opening a sub menu), the
788     *            callback should not happen and this variable should be false.
789     *            In addition, this method internally will only perform the
790     *            callback if the panel is open.
791     */
792    public final void closePanel(PanelFeatureState st, boolean doCallback) {
793        // System.out.println("Close panel: isOpen=" + st.isOpen);
794        if (doCallback && st.featureId == FEATURE_OPTIONS_PANEL &&
795                mDecorContentParent != null && mDecorContentParent.isOverflowMenuShowing()) {
796            checkCloseActionMenu(st.menu);
797            return;
798        }
799
800        final ViewManager wm = getWindowManager();
801        if ((wm != null) && st.isOpen) {
802            if (st.decorView != null) {
803                wm.removeView(st.decorView);
804                // Log.v(TAG, "Removing main menu from window manager.");
805                if (st.isCompact) {
806                    sRotationWatcher.removeWindow(this);
807                }
808            }
809
810            if (doCallback) {
811                callOnPanelClosed(st.featureId, st, null);
812            }
813        }
814
815        st.isPrepared = false;
816        st.isHandled = false;
817        st.isOpen = false;
818
819        // This view is no longer shown, so null it out
820        st.shownPanelView = null;
821
822        if (st.isInExpandedMode) {
823            // Next time the menu opens, it should not be in expanded mode, so
824            // force a refresh of the decor
825            st.refreshDecorView = true;
826            st.isInExpandedMode = false;
827        }
828
829        if (mPreparedPanel == st) {
830            mPreparedPanel = null;
831            mPanelChordingKey = 0;
832        }
833    }
834
835    void checkCloseActionMenu(Menu menu) {
836        if (mClosingActionMenu) {
837            return;
838        }
839
840        mClosingActionMenu = true;
841        mDecorContentParent.dismissPopups();
842        Callback cb = getCallback();
843        if (cb != null && !isDestroyed()) {
844            cb.onPanelClosed(FEATURE_ACTION_BAR, menu);
845        }
846        mClosingActionMenu = false;
847    }
848
849    @Override
850    public final void togglePanel(int featureId, KeyEvent event) {
851        PanelFeatureState st = getPanelState(featureId, true);
852        if (st.isOpen) {
853            closePanel(st, true);
854        } else {
855            openPanel(st, event);
856        }
857    }
858
859    @Override
860    public void invalidatePanelMenu(int featureId) {
861        mInvalidatePanelMenuFeatures |= 1 << featureId;
862
863        if (!mInvalidatePanelMenuPosted && mDecor != null) {
864            mDecor.postOnAnimation(mInvalidatePanelMenuRunnable);
865            mInvalidatePanelMenuPosted = true;
866        }
867    }
868
869    void doInvalidatePanelMenu(int featureId) {
870        PanelFeatureState st = getPanelState(featureId, true);
871        Bundle savedActionViewStates = null;
872        if (st.menu != null) {
873            savedActionViewStates = new Bundle();
874            st.menu.saveActionViewStates(savedActionViewStates);
875            if (savedActionViewStates.size() > 0) {
876                st.frozenActionViewState = savedActionViewStates;
877            }
878            // This will be started again when the panel is prepared.
879            st.menu.stopDispatchingItemsChanged();
880            st.menu.clear();
881        }
882        st.refreshMenuContent = true;
883        st.refreshDecorView = true;
884
885        // Prepare the options panel if we have an action bar
886        if ((featureId == FEATURE_ACTION_BAR || featureId == FEATURE_OPTIONS_PANEL)
887                && mDecorContentParent != null) {
888            st = getPanelState(Window.FEATURE_OPTIONS_PANEL, false);
889            if (st != null) {
890                st.isPrepared = false;
891                preparePanel(st, null);
892            }
893        }
894    }
895
896    /**
897     * Called when the panel key is pushed down.
898     * @param featureId The feature ID of the relevant panel (defaults to FEATURE_OPTIONS_PANEL}.
899     * @param event The key event.
900     * @return Whether the key was handled.
901     */
902    public final boolean onKeyDownPanel(int featureId, KeyEvent event) {
903        final int keyCode = event.getKeyCode();
904
905        if (event.getRepeatCount() == 0) {
906            // The panel key was pushed, so set the chording key
907            mPanelChordingKey = keyCode;
908
909            PanelFeatureState st = getPanelState(featureId, true);
910            if (!st.isOpen) {
911                return preparePanel(st, event);
912            }
913        }
914
915        return false;
916    }
917
918    /**
919     * Called when the panel key is released.
920     * @param featureId The feature ID of the relevant panel (defaults to FEATURE_OPTIONS_PANEL}.
921     * @param event The key event.
922     */
923    public final void onKeyUpPanel(int featureId, KeyEvent event) {
924        // The panel key was released, so clear the chording key
925        if (mPanelChordingKey != 0) {
926            mPanelChordingKey = 0;
927
928            if (event.isCanceled() || (mDecor != null && mDecor.mActionMode != null)) {
929                return;
930            }
931
932            boolean playSoundEffect = false;
933            final PanelFeatureState st = getPanelState(featureId, true);
934            if (featureId == FEATURE_OPTIONS_PANEL && mDecorContentParent != null &&
935                    mDecorContentParent.canShowOverflowMenu() &&
936                    !ViewConfiguration.get(getContext()).hasPermanentMenuKey()) {
937                if (!mDecorContentParent.isOverflowMenuShowing()) {
938                    if (!isDestroyed() && preparePanel(st, event)) {
939                        playSoundEffect = mDecorContentParent.showOverflowMenu();
940                    }
941                } else {
942                    playSoundEffect = mDecorContentParent.hideOverflowMenu();
943                }
944            } else {
945                if (st.isOpen || st.isHandled) {
946
947                    // Play the sound effect if the user closed an open menu (and not if
948                    // they just released a menu shortcut)
949                    playSoundEffect = st.isOpen;
950
951                    // Close menu
952                    closePanel(st, true);
953
954                } else if (st.isPrepared) {
955                    boolean show = true;
956                    if (st.refreshMenuContent) {
957                        // Something may have invalidated the menu since we prepared it.
958                        // Re-prepare it to refresh.
959                        st.isPrepared = false;
960                        show = preparePanel(st, event);
961                    }
962
963                    if (show) {
964                        // Write 'menu opened' to event log
965                        EventLog.writeEvent(50001, 0);
966
967                        // Show menu
968                        openPanel(st, event);
969
970                        playSoundEffect = true;
971                    }
972                }
973            }
974
975            if (playSoundEffect) {
976                AudioManager audioManager = (AudioManager) getContext().getSystemService(
977                        Context.AUDIO_SERVICE);
978                if (audioManager != null) {
979                    audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK);
980                } else {
981                    Log.w(TAG, "Couldn't get audio manager");
982                }
983            }
984        }
985    }
986
987    @Override
988    public final void closeAllPanels() {
989        final ViewManager wm = getWindowManager();
990        if (wm == null) {
991            return;
992        }
993
994        final PanelFeatureState[] panels = mPanels;
995        final int N = panels != null ? panels.length : 0;
996        for (int i = 0; i < N; i++) {
997            final PanelFeatureState panel = panels[i];
998            if (panel != null) {
999                closePanel(panel, true);
1000            }
1001        }
1002
1003        closeContextMenu();
1004    }
1005
1006    /**
1007     * Closes the context menu. This notifies the menu logic of the close, along
1008     * with dismissing it from the UI.
1009     */
1010    private synchronized void closeContextMenu() {
1011        if (mContextMenu != null) {
1012            mContextMenu.close();
1013            dismissContextMenu();
1014        }
1015    }
1016
1017    /**
1018     * Dismisses just the context menu UI. To close the context menu, use
1019     * {@link #closeContextMenu()}.
1020     */
1021    private synchronized void dismissContextMenu() {
1022        mContextMenu = null;
1023
1024        if (mContextMenuHelper != null) {
1025            mContextMenuHelper.dismiss();
1026            mContextMenuHelper = null;
1027        }
1028    }
1029
1030    @Override
1031    public boolean performPanelShortcut(int featureId, int keyCode, KeyEvent event, int flags) {
1032        return performPanelShortcut(getPanelState(featureId, true), keyCode, event, flags);
1033    }
1034
1035    private boolean performPanelShortcut(PanelFeatureState st, int keyCode, KeyEvent event,
1036            int flags) {
1037        if (event.isSystem() || (st == null)) {
1038            return false;
1039        }
1040
1041        boolean handled = false;
1042
1043        // Only try to perform menu shortcuts if preparePanel returned true (possible false
1044        // return value from application not wanting to show the menu).
1045        if ((st.isPrepared || preparePanel(st, event)) && st.menu != null) {
1046            // The menu is prepared now, perform the shortcut on it
1047            handled = st.menu.performShortcut(keyCode, event, flags);
1048        }
1049
1050        if (handled) {
1051            // Mark as handled
1052            st.isHandled = true;
1053
1054            // Only close down the menu if we don't have an action bar keeping it open.
1055            if ((flags & Menu.FLAG_PERFORM_NO_CLOSE) == 0 && mDecorContentParent == null) {
1056                closePanel(st, true);
1057            }
1058        }
1059
1060        return handled;
1061    }
1062
1063    @Override
1064    public boolean performPanelIdentifierAction(int featureId, int id, int flags) {
1065
1066        PanelFeatureState st = getPanelState(featureId, true);
1067        if (!preparePanel(st, new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MENU))) {
1068            return false;
1069        }
1070        if (st.menu == null) {
1071            return false;
1072        }
1073
1074        boolean res = st.menu.performIdentifierAction(id, flags);
1075
1076        // Only close down the menu if we don't have an action bar keeping it open.
1077        if (mDecorContentParent == null) {
1078            closePanel(st, true);
1079        }
1080
1081        return res;
1082    }
1083
1084    public PanelFeatureState findMenuPanel(Menu menu) {
1085        final PanelFeatureState[] panels = mPanels;
1086        final int N = panels != null ? panels.length : 0;
1087        for (int i = 0; i < N; i++) {
1088            final PanelFeatureState panel = panels[i];
1089            if (panel != null && panel.menu == menu) {
1090                return panel;
1091            }
1092        }
1093        return null;
1094    }
1095
1096    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
1097        final Callback cb = getCallback();
1098        if (cb != null && !isDestroyed()) {
1099            final PanelFeatureState panel = findMenuPanel(menu.getRootMenu());
1100            if (panel != null) {
1101                return cb.onMenuItemSelected(panel.featureId, item);
1102            }
1103        }
1104        return false;
1105    }
1106
1107    public void onMenuModeChange(MenuBuilder menu) {
1108        reopenMenu(true);
1109    }
1110
1111    private void reopenMenu(boolean toggleMenuMode) {
1112        if (mDecorContentParent != null && mDecorContentParent.canShowOverflowMenu() &&
1113                (!ViewConfiguration.get(getContext()).hasPermanentMenuKey() ||
1114                        mDecorContentParent.isOverflowMenuShowPending())) {
1115            final Callback cb = getCallback();
1116            if (!mDecorContentParent.isOverflowMenuShowing() || !toggleMenuMode) {
1117                if (cb != null && !isDestroyed()) {
1118                    // If we have a menu invalidation pending, do it now.
1119                    if (mInvalidatePanelMenuPosted &&
1120                            (mInvalidatePanelMenuFeatures & (1 << FEATURE_OPTIONS_PANEL)) != 0) {
1121                        mDecor.removeCallbacks(mInvalidatePanelMenuRunnable);
1122                        mInvalidatePanelMenuRunnable.run();
1123                    }
1124
1125                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
1126
1127                    // If we don't have a menu or we're waiting for a full content refresh,
1128                    // forget it. This is a lingering event that no longer matters.
1129                    if (st.menu != null && !st.refreshMenuContent &&
1130                            cb.onPreparePanel(FEATURE_OPTIONS_PANEL, st.createdPanelView, st.menu)) {
1131                        cb.onMenuOpened(FEATURE_ACTION_BAR, st.menu);
1132                        mDecorContentParent.showOverflowMenu();
1133                    }
1134                }
1135            } else {
1136                mDecorContentParent.hideOverflowMenu();
1137                if (cb != null && !isDestroyed()) {
1138                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
1139                    cb.onPanelClosed(FEATURE_ACTION_BAR, st.menu);
1140                }
1141            }
1142            return;
1143        }
1144
1145        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
1146
1147        // Save the future expanded mode state since closePanel will reset it
1148        boolean newExpandedMode = toggleMenuMode ? !st.isInExpandedMode : st.isInExpandedMode;
1149
1150        st.refreshDecorView = true;
1151        closePanel(st, false);
1152
1153        // Set the expanded mode state
1154        st.isInExpandedMode = newExpandedMode;
1155
1156        openPanel(st, null);
1157    }
1158
1159    /**
1160     * Initializes the menu associated with the given panel feature state. You
1161     * must at the very least set PanelFeatureState.menu to the Menu to be
1162     * associated with the given panel state. The default implementation creates
1163     * a new menu for the panel state.
1164     *
1165     * @param st The panel whose menu is being initialized.
1166     * @return Whether the initialization was successful.
1167     */
1168    protected boolean initializePanelMenu(final PanelFeatureState st) {
1169        Context context = getContext();
1170
1171        // If we have an action bar, initialize the menu with the right theme.
1172        if ((st.featureId == FEATURE_OPTIONS_PANEL || st.featureId == FEATURE_ACTION_BAR) &&
1173                mDecorContentParent != null) {
1174            final TypedValue outValue = new TypedValue();
1175            final Theme baseTheme = context.getTheme();
1176            baseTheme.resolveAttribute(com.android.internal.R.attr.actionBarTheme, outValue, true);
1177
1178            Theme widgetTheme = null;
1179            if (outValue.resourceId != 0) {
1180                widgetTheme = context.getResources().newTheme();
1181                widgetTheme.setTo(baseTheme);
1182                widgetTheme.applyStyle(outValue.resourceId, true);
1183                widgetTheme.resolveAttribute(
1184                        com.android.internal.R.attr.actionBarWidgetTheme, outValue, true);
1185            } else {
1186                baseTheme.resolveAttribute(
1187                        com.android.internal.R.attr.actionBarWidgetTheme, outValue, true);
1188            }
1189
1190            if (outValue.resourceId != 0) {
1191                if (widgetTheme == null) {
1192                    widgetTheme = context.getResources().newTheme();
1193                    widgetTheme.setTo(baseTheme);
1194                }
1195                widgetTheme.applyStyle(outValue.resourceId, true);
1196            }
1197
1198            if (widgetTheme != null) {
1199                context = new ContextThemeWrapper(context, 0);
1200                context.getTheme().setTo(widgetTheme);
1201            }
1202        }
1203
1204        final MenuBuilder menu = new MenuBuilder(context);
1205        menu.setCallback(this);
1206        st.setMenu(menu);
1207
1208        return true;
1209    }
1210
1211    /**
1212     * Perform initial setup of a panel. This should at the very least set the
1213     * style information in the PanelFeatureState and must set
1214     * PanelFeatureState.decor to the panel's window decor view.
1215     *
1216     * @param st The panel being initialized.
1217     */
1218    protected boolean initializePanelDecor(PanelFeatureState st) {
1219        st.decorView = new DecorView(getContext(), st.featureId);
1220        st.gravity = Gravity.CENTER | Gravity.BOTTOM;
1221        st.setStyle(getContext());
1222
1223        return true;
1224    }
1225
1226    /**
1227     * Determine the gravity value for the options panel. This can
1228     * differ in compact mode.
1229     *
1230     * @return gravity value to use for the panel window
1231     */
1232    private int getOptionsPanelGravity() {
1233        try {
1234            return WindowManagerHolder.sWindowManager.getPreferredOptionsPanelGravity();
1235        } catch (RemoteException ex) {
1236            Log.e(TAG, "Couldn't getOptionsPanelGravity; using default", ex);
1237            return Gravity.CENTER | Gravity.BOTTOM;
1238        }
1239    }
1240
1241    void onOptionsPanelRotationChanged() {
1242        final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
1243        if (st == null) return;
1244
1245        final WindowManager.LayoutParams lp = st.decorView != null ?
1246                (WindowManager.LayoutParams) st.decorView.getLayoutParams() : null;
1247        if (lp != null) {
1248            lp.gravity = getOptionsPanelGravity();
1249            final ViewManager wm = getWindowManager();
1250            if (wm != null) {
1251                wm.updateViewLayout(st.decorView, lp);
1252            }
1253        }
1254    }
1255
1256    /**
1257     * Initializes the panel associated with the panel feature state. You must
1258     * at the very least set PanelFeatureState.panel to the View implementing
1259     * its contents. The default implementation gets the panel from the menu.
1260     *
1261     * @param st The panel state being initialized.
1262     * @return Whether the initialization was successful.
1263     */
1264    protected boolean initializePanelContent(PanelFeatureState st) {
1265        if (st.createdPanelView != null) {
1266            st.shownPanelView = st.createdPanelView;
1267            return true;
1268        }
1269
1270        if (st.menu == null) {
1271            return false;
1272        }
1273
1274        if (mPanelMenuPresenterCallback == null) {
1275            mPanelMenuPresenterCallback = new PanelMenuPresenterCallback();
1276        }
1277
1278        MenuView menuView = st.isInListMode()
1279                ? st.getListMenuView(getContext(), mPanelMenuPresenterCallback)
1280                : st.getIconMenuView(getContext(), mPanelMenuPresenterCallback);
1281
1282        st.shownPanelView = (View) menuView;
1283
1284        if (st.shownPanelView != null) {
1285            // Use the menu View's default animations if it has any
1286            final int defaultAnimations = menuView.getWindowAnimations();
1287            if (defaultAnimations != 0) {
1288                st.windowAnimations = defaultAnimations;
1289            }
1290            return true;
1291        } else {
1292            return false;
1293        }
1294    }
1295
1296    @Override
1297    public boolean performContextMenuIdentifierAction(int id, int flags) {
1298        return (mContextMenu != null) ? mContextMenu.performIdentifierAction(id, flags) : false;
1299    }
1300
1301    @Override
1302    public final void setBackgroundDrawable(Drawable drawable) {
1303        if (drawable != mBackgroundDrawable || mBackgroundResource != 0) {
1304            mBackgroundResource = 0;
1305            mBackgroundDrawable = drawable;
1306            if (mDecor != null) {
1307                mDecor.setWindowBackground(drawable);
1308            }
1309        }
1310    }
1311
1312    @Override
1313    public final void setFeatureDrawableResource(int featureId, int resId) {
1314        if (resId != 0) {
1315            DrawableFeatureState st = getDrawableState(featureId, true);
1316            if (st.resid != resId) {
1317                st.resid = resId;
1318                st.uri = null;
1319                st.local = getContext().getDrawable(resId);
1320                updateDrawable(featureId, st, false);
1321            }
1322        } else {
1323            setFeatureDrawable(featureId, null);
1324        }
1325    }
1326
1327    @Override
1328    public final void setFeatureDrawableUri(int featureId, Uri uri) {
1329        if (uri != null) {
1330            DrawableFeatureState st = getDrawableState(featureId, true);
1331            if (st.uri == null || !st.uri.equals(uri)) {
1332                st.resid = 0;
1333                st.uri = uri;
1334                st.local = loadImageURI(uri);
1335                updateDrawable(featureId, st, false);
1336            }
1337        } else {
1338            setFeatureDrawable(featureId, null);
1339        }
1340    }
1341
1342    @Override
1343    public final void setFeatureDrawable(int featureId, Drawable drawable) {
1344        DrawableFeatureState st = getDrawableState(featureId, true);
1345        st.resid = 0;
1346        st.uri = null;
1347        if (st.local != drawable) {
1348            st.local = drawable;
1349            updateDrawable(featureId, st, false);
1350        }
1351    }
1352
1353    @Override
1354    public void setFeatureDrawableAlpha(int featureId, int alpha) {
1355        DrawableFeatureState st = getDrawableState(featureId, true);
1356        if (st.alpha != alpha) {
1357            st.alpha = alpha;
1358            updateDrawable(featureId, st, false);
1359        }
1360    }
1361
1362    protected final void setFeatureDefaultDrawable(int featureId, Drawable drawable) {
1363        DrawableFeatureState st = getDrawableState(featureId, true);
1364        if (st.def != drawable) {
1365            st.def = drawable;
1366            updateDrawable(featureId, st, false);
1367        }
1368    }
1369
1370    @Override
1371    public final void setFeatureInt(int featureId, int value) {
1372        // XXX Should do more management (as with drawable features) to
1373        // deal with interactions between multiple window policies.
1374        updateInt(featureId, value, false);
1375    }
1376
1377    /**
1378     * Update the state of a drawable feature. This should be called, for every
1379     * drawable feature supported, as part of onActive(), to make sure that the
1380     * contents of a containing window is properly updated.
1381     *
1382     * @see #onActive
1383     * @param featureId The desired drawable feature to change.
1384     * @param fromActive Always true when called from onActive().
1385     */
1386    protected final void updateDrawable(int featureId, boolean fromActive) {
1387        final DrawableFeatureState st = getDrawableState(featureId, false);
1388        if (st != null) {
1389            updateDrawable(featureId, st, fromActive);
1390        }
1391    }
1392
1393    /**
1394     * Called when a Drawable feature changes, for the window to update its
1395     * graphics.
1396     *
1397     * @param featureId The feature being changed.
1398     * @param drawable The new Drawable to show, or null if none.
1399     * @param alpha The new alpha blending of the Drawable.
1400     */
1401    protected void onDrawableChanged(int featureId, Drawable drawable, int alpha) {
1402        ImageView view;
1403        if (featureId == FEATURE_LEFT_ICON) {
1404            view = getLeftIconView();
1405        } else if (featureId == FEATURE_RIGHT_ICON) {
1406            view = getRightIconView();
1407        } else {
1408            return;
1409        }
1410
1411        if (drawable != null) {
1412            drawable.setAlpha(alpha);
1413            view.setImageDrawable(drawable);
1414            view.setVisibility(View.VISIBLE);
1415        } else {
1416            view.setVisibility(View.GONE);
1417        }
1418    }
1419
1420    /**
1421     * Called when an int feature changes, for the window to update its
1422     * graphics.
1423     *
1424     * @param featureId The feature being changed.
1425     * @param value The new integer value.
1426     */
1427    protected void onIntChanged(int featureId, int value) {
1428        if (featureId == FEATURE_PROGRESS || featureId == FEATURE_INDETERMINATE_PROGRESS) {
1429            updateProgressBars(value);
1430        } else if (featureId == FEATURE_CUSTOM_TITLE) {
1431            FrameLayout titleContainer = (FrameLayout) findViewById(com.android.internal.R.id.title_container);
1432            if (titleContainer != null) {
1433                mLayoutInflater.inflate(value, titleContainer);
1434            }
1435        }
1436    }
1437
1438    /**
1439     * Updates the progress bars that are shown in the title bar.
1440     *
1441     * @param value Can be one of {@link Window#PROGRESS_VISIBILITY_ON},
1442     *            {@link Window#PROGRESS_VISIBILITY_OFF},
1443     *            {@link Window#PROGRESS_INDETERMINATE_ON},
1444     *            {@link Window#PROGRESS_INDETERMINATE_OFF}, or a value
1445     *            starting at {@link Window#PROGRESS_START} through
1446     *            {@link Window#PROGRESS_END} for setting the default
1447     *            progress (if {@link Window#PROGRESS_END} is given,
1448     *            the progress bar widgets in the title will be hidden after an
1449     *            animation), a value between
1450     *            {@link Window#PROGRESS_SECONDARY_START} -
1451     *            {@link Window#PROGRESS_SECONDARY_END} for the
1452     *            secondary progress (if
1453     *            {@link Window#PROGRESS_SECONDARY_END} is given, the
1454     *            progress bar widgets will still be shown with the secondary
1455     *            progress bar will be completely filled in.)
1456     */
1457    private void updateProgressBars(int value) {
1458        ProgressBar circularProgressBar = getCircularProgressBar(true);
1459        ProgressBar horizontalProgressBar = getHorizontalProgressBar(true);
1460
1461        final int features = getLocalFeatures();
1462        if (value == PROGRESS_VISIBILITY_ON) {
1463            if ((features & (1 << FEATURE_PROGRESS)) != 0) {
1464                if (horizontalProgressBar != null) {
1465                    int level = horizontalProgressBar.getProgress();
1466                    int visibility = (horizontalProgressBar.isIndeterminate() || level < 10000) ?
1467                            View.VISIBLE : View.INVISIBLE;
1468                    horizontalProgressBar.setVisibility(visibility);
1469                } else {
1470                    Log.e(TAG, "Horizontal progress bar not located in current window decor");
1471                }
1472            }
1473            if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
1474                if (circularProgressBar != null) {
1475                    circularProgressBar.setVisibility(View.VISIBLE);
1476                } else {
1477                    Log.e(TAG, "Circular progress bar not located in current window decor");
1478                }
1479            }
1480        } else if (value == PROGRESS_VISIBILITY_OFF) {
1481            if ((features & (1 << FEATURE_PROGRESS)) != 0) {
1482                if (horizontalProgressBar != null) {
1483                    horizontalProgressBar.setVisibility(View.GONE);
1484                } else {
1485                    Log.e(TAG, "Horizontal progress bar not located in current window decor");
1486                }
1487            }
1488            if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
1489                if (circularProgressBar != null) {
1490                    circularProgressBar.setVisibility(View.GONE);
1491                } else {
1492                    Log.e(TAG, "Circular progress bar not located in current window decor");
1493                }
1494            }
1495        } else if (value == PROGRESS_INDETERMINATE_ON) {
1496            if (horizontalProgressBar != null) {
1497                horizontalProgressBar.setIndeterminate(true);
1498            } else {
1499                Log.e(TAG, "Horizontal progress bar not located in current window decor");
1500            }
1501        } else if (value == PROGRESS_INDETERMINATE_OFF) {
1502            if (horizontalProgressBar != null) {
1503                horizontalProgressBar.setIndeterminate(false);
1504            } else {
1505                Log.e(TAG, "Horizontal progress bar not located in current window decor");
1506            }
1507        } else if (PROGRESS_START <= value && value <= PROGRESS_END) {
1508            // We want to set the progress value before testing for visibility
1509            // so that when the progress bar becomes visible again, it has the
1510            // correct level.
1511            if (horizontalProgressBar != null) {
1512                horizontalProgressBar.setProgress(value - PROGRESS_START);
1513            } else {
1514                Log.e(TAG, "Horizontal progress bar not located in current window decor");
1515            }
1516
1517            if (value < PROGRESS_END) {
1518                showProgressBars(horizontalProgressBar, circularProgressBar);
1519            } else {
1520                hideProgressBars(horizontalProgressBar, circularProgressBar);
1521            }
1522        } else if (PROGRESS_SECONDARY_START <= value && value <= PROGRESS_SECONDARY_END) {
1523            if (horizontalProgressBar != null) {
1524                horizontalProgressBar.setSecondaryProgress(value - PROGRESS_SECONDARY_START);
1525            } else {
1526                Log.e(TAG, "Horizontal progress bar not located in current window decor");
1527            }
1528
1529            showProgressBars(horizontalProgressBar, circularProgressBar);
1530        }
1531
1532    }
1533
1534    private void showProgressBars(ProgressBar horizontalProgressBar, ProgressBar spinnyProgressBar) {
1535        final int features = getLocalFeatures();
1536        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0 &&
1537                spinnyProgressBar != null && spinnyProgressBar.getVisibility() == View.INVISIBLE) {
1538            spinnyProgressBar.setVisibility(View.VISIBLE);
1539        }
1540        // Only show the progress bars if the primary progress is not complete
1541        if ((features & (1 << FEATURE_PROGRESS)) != 0 && horizontalProgressBar != null &&
1542                horizontalProgressBar.getProgress() < 10000) {
1543            horizontalProgressBar.setVisibility(View.VISIBLE);
1544        }
1545    }
1546
1547    private void hideProgressBars(ProgressBar horizontalProgressBar, ProgressBar spinnyProgressBar) {
1548        final int features = getLocalFeatures();
1549        Animation anim = AnimationUtils.loadAnimation(getContext(), com.android.internal.R.anim.fade_out);
1550        anim.setDuration(1000);
1551        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0 &&
1552                spinnyProgressBar != null &&
1553                spinnyProgressBar.getVisibility() == View.VISIBLE) {
1554            spinnyProgressBar.startAnimation(anim);
1555            spinnyProgressBar.setVisibility(View.INVISIBLE);
1556        }
1557        if ((features & (1 << FEATURE_PROGRESS)) != 0 && horizontalProgressBar != null &&
1558                horizontalProgressBar.getVisibility() == View.VISIBLE) {
1559            horizontalProgressBar.startAnimation(anim);
1560            horizontalProgressBar.setVisibility(View.INVISIBLE);
1561        }
1562    }
1563
1564    @Override
1565    public void setIcon(int resId) {
1566        mIconRes = resId;
1567        mResourcesSetFlags |= FLAG_RESOURCE_SET_ICON;
1568        mResourcesSetFlags &= ~FLAG_RESOURCE_SET_ICON_FALLBACK;
1569        if (mDecorContentParent != null) {
1570            mDecorContentParent.setIcon(resId);
1571        }
1572    }
1573
1574    @Override
1575    public void setDefaultIcon(int resId) {
1576        if ((mResourcesSetFlags & FLAG_RESOURCE_SET_ICON) != 0) {
1577            return;
1578        }
1579        mIconRes = resId;
1580        if (mDecorContentParent != null && (!mDecorContentParent.hasIcon() ||
1581                (mResourcesSetFlags & FLAG_RESOURCE_SET_ICON_FALLBACK) != 0)) {
1582            if (resId != 0) {
1583                mDecorContentParent.setIcon(resId);
1584                mResourcesSetFlags &= ~FLAG_RESOURCE_SET_ICON_FALLBACK;
1585            } else {
1586                mDecorContentParent.setIcon(
1587                        getContext().getPackageManager().getDefaultActivityIcon());
1588                mResourcesSetFlags |= FLAG_RESOURCE_SET_ICON_FALLBACK;
1589            }
1590        }
1591    }
1592
1593    @Override
1594    public void setLogo(int resId) {
1595        mLogoRes = resId;
1596        mResourcesSetFlags |= FLAG_RESOURCE_SET_LOGO;
1597        if (mDecorContentParent != null) {
1598            mDecorContentParent.setLogo(resId);
1599        }
1600    }
1601
1602    @Override
1603    public void setDefaultLogo(int resId) {
1604        if ((mResourcesSetFlags & FLAG_RESOURCE_SET_LOGO) != 0) {
1605            return;
1606        }
1607        mLogoRes = resId;
1608        if (mDecorContentParent != null && !mDecorContentParent.hasLogo()) {
1609            mDecorContentParent.setLogo(resId);
1610        }
1611    }
1612
1613    @Override
1614    public void setLocalFocus(boolean hasFocus, boolean inTouchMode) {
1615        getViewRootImpl().windowFocusChanged(hasFocus, inTouchMode);
1616
1617    }
1618
1619    @Override
1620    public void injectInputEvent(InputEvent event) {
1621        getViewRootImpl().dispatchInputEvent(event);
1622    }
1623
1624    private ViewRootImpl getViewRootImpl() {
1625        if (mDecor != null) {
1626            ViewRootImpl viewRootImpl = mDecor.getViewRootImpl();
1627            if (viewRootImpl != null) {
1628                return viewRootImpl;
1629            }
1630        }
1631        throw new IllegalStateException("view not added");
1632    }
1633
1634    /**
1635     * Request that key events come to this activity. Use this if your activity
1636     * has no views with focus, but the activity still wants a chance to process
1637     * key events.
1638     */
1639    @Override
1640    public void takeKeyEvents(boolean get) {
1641        mDecor.setFocusable(get);
1642    }
1643
1644    @Override
1645    public boolean superDispatchKeyEvent(KeyEvent event) {
1646        return mDecor.superDispatchKeyEvent(event);
1647    }
1648
1649    @Override
1650    public boolean superDispatchKeyShortcutEvent(KeyEvent event) {
1651        return mDecor.superDispatchKeyShortcutEvent(event);
1652    }
1653
1654    @Override
1655    public boolean superDispatchTouchEvent(MotionEvent event) {
1656        return mDecor.superDispatchTouchEvent(event);
1657    }
1658
1659    @Override
1660    public boolean superDispatchTrackballEvent(MotionEvent event) {
1661        return mDecor.superDispatchTrackballEvent(event);
1662    }
1663
1664    @Override
1665    public boolean superDispatchGenericMotionEvent(MotionEvent event) {
1666        return mDecor.superDispatchGenericMotionEvent(event);
1667    }
1668
1669    /**
1670     * A key was pressed down and not handled by anything else in the window.
1671     *
1672     * @see #onKeyUp
1673     * @see android.view.KeyEvent
1674     */
1675    protected boolean onKeyDown(int featureId, int keyCode, KeyEvent event) {
1676        /* ****************************************************************************
1677         * HOW TO DECIDE WHERE YOUR KEY HANDLING GOES.
1678         *
1679         * If your key handling must happen before the app gets a crack at the event,
1680         * it goes in PhoneWindowManager.
1681         *
1682         * If your key handling should happen in all windows, and does not depend on
1683         * the state of the current application, other than that the current
1684         * application can override the behavior by handling the event itself, it
1685         * should go in PhoneFallbackEventHandler.
1686         *
1687         * Only if your handling depends on the window, and the fact that it has
1688         * a DecorView, should it go here.
1689         * ****************************************************************************/
1690
1691        final KeyEvent.DispatcherState dispatcher =
1692                mDecor != null ? mDecor.getKeyDispatcherState() : null;
1693        //Log.i(TAG, "Key down: repeat=" + event.getRepeatCount()
1694        //        + " flags=0x" + Integer.toHexString(event.getFlags()));
1695
1696        switch (keyCode) {
1697            case KeyEvent.KEYCODE_VOLUME_UP:
1698            case KeyEvent.KEYCODE_VOLUME_DOWN: {
1699                int direction = keyCode == KeyEvent.KEYCODE_VOLUME_UP ? AudioManager.ADJUST_RAISE
1700                        : AudioManager.ADJUST_LOWER;
1701                // If we have a session send it the volume command, otherwise
1702                // use the suggested stream.
1703                if (mMediaController != null) {
1704                    mMediaController.adjustVolume(direction, AudioManager.FLAG_SHOW_UI);
1705                } else {
1706                    MediaSessionLegacyHelper.getHelper(getContext()).sendAdjustVolumeBy(
1707                            mVolumeControlStreamType, direction, AudioManager.FLAG_SHOW_UI);
1708                }
1709                return true;
1710            }
1711            case KeyEvent.KEYCODE_VOLUME_MUTE: {
1712                getAudioManager().handleKeyDown(event, mVolumeControlStreamType);
1713                return true;
1714            }
1715            // These are all the recognized media key codes in
1716            // KeyEvent.isMediaKey()
1717            case KeyEvent.KEYCODE_MEDIA_PLAY:
1718            case KeyEvent.KEYCODE_MEDIA_PAUSE:
1719            case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
1720            case KeyEvent.KEYCODE_MUTE:
1721            case KeyEvent.KEYCODE_HEADSETHOOK:
1722            case KeyEvent.KEYCODE_MEDIA_STOP:
1723            case KeyEvent.KEYCODE_MEDIA_NEXT:
1724            case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
1725            case KeyEvent.KEYCODE_MEDIA_REWIND:
1726            case KeyEvent.KEYCODE_MEDIA_RECORD:
1727            case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: {
1728                if (mMediaController != null) {
1729                    if (mMediaController.dispatchMediaButtonEvent(event)) {
1730                        return true;
1731                    }
1732                }
1733                return false;
1734            }
1735
1736            case KeyEvent.KEYCODE_MENU: {
1737                onKeyDownPanel((featureId < 0) ? FEATURE_OPTIONS_PANEL : featureId, event);
1738                return true;
1739            }
1740
1741            case KeyEvent.KEYCODE_BACK: {
1742                if (event.getRepeatCount() > 0) break;
1743                if (featureId < 0) break;
1744                // Currently don't do anything with long press.
1745                if (dispatcher != null) {
1746                    dispatcher.startTracking(event, this);
1747                }
1748                return true;
1749            }
1750
1751        }
1752
1753        return false;
1754    }
1755
1756    private KeyguardManager getKeyguardManager() {
1757        if (mKeyguardManager == null) {
1758            mKeyguardManager = (KeyguardManager) getContext().getSystemService(
1759                    Context.KEYGUARD_SERVICE);
1760        }
1761        return mKeyguardManager;
1762    }
1763
1764    AudioManager getAudioManager() {
1765        if (mAudioManager == null) {
1766            mAudioManager = (AudioManager)getContext().getSystemService(Context.AUDIO_SERVICE);
1767        }
1768        return mAudioManager;
1769    }
1770
1771    /**
1772     * A key was released and not handled by anything else in the window.
1773     *
1774     * @see #onKeyDown
1775     * @see android.view.KeyEvent
1776     */
1777    protected boolean onKeyUp(int featureId, int keyCode, KeyEvent event) {
1778        final KeyEvent.DispatcherState dispatcher =
1779                mDecor != null ? mDecor.getKeyDispatcherState() : null;
1780        if (dispatcher != null) {
1781            dispatcher.handleUpEvent(event);
1782        }
1783        //Log.i(TAG, "Key up: repeat=" + event.getRepeatCount()
1784        //        + " flags=0x" + Integer.toHexString(event.getFlags()));
1785
1786        switch (keyCode) {
1787            case KeyEvent.KEYCODE_VOLUME_UP:
1788            case KeyEvent.KEYCODE_VOLUME_DOWN: {
1789                // If we have a session send it the volume command, otherwise
1790                // use the suggested stream.
1791                if (mMediaController != null) {
1792                    mMediaController.adjustVolume(0, AudioManager.FLAG_PLAY_SOUND
1793                            | AudioManager.FLAG_VIBRATE);
1794                } else {
1795                    MediaSessionLegacyHelper.getHelper(getContext()).sendAdjustVolumeBy(
1796                            mVolumeControlStreamType, 0,
1797                            AudioManager.FLAG_PLAY_SOUND | AudioManager.FLAG_VIBRATE);
1798                }
1799                return true;
1800            }
1801            case KeyEvent.KEYCODE_VOLUME_MUTE: {
1802                // Similar code is in PhoneFallbackEventHandler in case the window
1803                // doesn't have one of these.  In this case, we execute it here and
1804                // eat the event instead, because we have mVolumeControlStreamType
1805                // and they don't.
1806                getAudioManager().handleKeyUp(event, mVolumeControlStreamType);
1807                return true;
1808            }
1809            // These are all the recognized media key codes in
1810            // KeyEvent.isMediaKey()
1811            case KeyEvent.KEYCODE_MEDIA_PLAY:
1812            case KeyEvent.KEYCODE_MEDIA_PAUSE:
1813            case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
1814            case KeyEvent.KEYCODE_MUTE:
1815            case KeyEvent.KEYCODE_HEADSETHOOK:
1816            case KeyEvent.KEYCODE_MEDIA_STOP:
1817            case KeyEvent.KEYCODE_MEDIA_NEXT:
1818            case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
1819            case KeyEvent.KEYCODE_MEDIA_REWIND:
1820            case KeyEvent.KEYCODE_MEDIA_RECORD:
1821            case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: {
1822                if (mMediaController != null) {
1823                    if (mMediaController.dispatchMediaButtonEvent(event)) {
1824                        return true;
1825                    }
1826                }
1827                return false;
1828            }
1829
1830            case KeyEvent.KEYCODE_MENU: {
1831                onKeyUpPanel(featureId < 0 ? FEATURE_OPTIONS_PANEL : featureId,
1832                        event);
1833                return true;
1834            }
1835
1836            case KeyEvent.KEYCODE_BACK: {
1837                if (featureId < 0) break;
1838                if (event.isTracking() && !event.isCanceled()) {
1839                    if (featureId == FEATURE_OPTIONS_PANEL) {
1840                        PanelFeatureState st = getPanelState(featureId, false);
1841                        if (st != null && st.isInExpandedMode) {
1842                            // If the user is in an expanded menu and hits back, it
1843                            // should go back to the icon menu
1844                            reopenMenu(true);
1845                            return true;
1846                        }
1847                    }
1848                    closePanel(featureId);
1849                    return true;
1850                }
1851                break;
1852            }
1853
1854            case KeyEvent.KEYCODE_SEARCH: {
1855                /*
1856                 * Do this in onKeyUp since the Search key is also used for
1857                 * chording quick launch shortcuts.
1858                 */
1859                if (getKeyguardManager().inKeyguardRestrictedInputMode()) {
1860                    break;
1861                }
1862                if (event.isTracking() && !event.isCanceled()) {
1863                    launchDefaultSearch();
1864                }
1865                return true;
1866            }
1867        }
1868
1869        return false;
1870    }
1871
1872    @Override
1873    protected void onActive() {
1874    }
1875
1876    @Override
1877    public final View getDecorView() {
1878        if (mDecor == null) {
1879            installDecor();
1880        }
1881        return mDecor;
1882    }
1883
1884    @Override
1885    public final View peekDecorView() {
1886        return mDecor;
1887    }
1888
1889    static private final String FOCUSED_ID_TAG = "android:focusedViewId";
1890    static private final String VIEWS_TAG = "android:views";
1891    static private final String PANELS_TAG = "android:Panels";
1892    static private final String ACTION_BAR_TAG = "android:ActionBar";
1893
1894    /** {@inheritDoc} */
1895    @Override
1896    public Bundle saveHierarchyState() {
1897        Bundle outState = new Bundle();
1898        if (mContentParent == null) {
1899            return outState;
1900        }
1901
1902        SparseArray<Parcelable> states = new SparseArray<Parcelable>();
1903        mContentParent.saveHierarchyState(states);
1904        outState.putSparseParcelableArray(VIEWS_TAG, states);
1905
1906        // save the focused view id
1907        View focusedView = mContentParent.findFocus();
1908        if (focusedView != null) {
1909            if (focusedView.getId() != View.NO_ID) {
1910                outState.putInt(FOCUSED_ID_TAG, focusedView.getId());
1911            } else {
1912                if (false) {
1913                    Log.d(TAG, "couldn't save which view has focus because the focused view "
1914                            + focusedView + " has no id.");
1915                }
1916            }
1917        }
1918
1919        // save the panels
1920        SparseArray<Parcelable> panelStates = new SparseArray<Parcelable>();
1921        savePanelState(panelStates);
1922        if (panelStates.size() > 0) {
1923            outState.putSparseParcelableArray(PANELS_TAG, panelStates);
1924        }
1925
1926        if (mDecorContentParent != null) {
1927            SparseArray<Parcelable> actionBarStates = new SparseArray<Parcelable>();
1928            mDecorContentParent.saveToolbarHierarchyState(actionBarStates);
1929            outState.putSparseParcelableArray(ACTION_BAR_TAG, actionBarStates);
1930        }
1931
1932        return outState;
1933    }
1934
1935    /** {@inheritDoc} */
1936    @Override
1937    public void restoreHierarchyState(Bundle savedInstanceState) {
1938        if (mContentParent == null) {
1939            return;
1940        }
1941
1942        SparseArray<Parcelable> savedStates
1943                = savedInstanceState.getSparseParcelableArray(VIEWS_TAG);
1944        if (savedStates != null) {
1945            mContentParent.restoreHierarchyState(savedStates);
1946        }
1947
1948        // restore the focused view
1949        int focusedViewId = savedInstanceState.getInt(FOCUSED_ID_TAG, View.NO_ID);
1950        if (focusedViewId != View.NO_ID) {
1951            View needsFocus = mContentParent.findViewById(focusedViewId);
1952            if (needsFocus != null) {
1953                needsFocus.requestFocus();
1954            } else {
1955                Log.w(TAG,
1956                        "Previously focused view reported id " + focusedViewId
1957                                + " during save, but can't be found during restore.");
1958            }
1959        }
1960
1961        // restore the panels
1962        SparseArray<Parcelable> panelStates = savedInstanceState.getSparseParcelableArray(PANELS_TAG);
1963        if (panelStates != null) {
1964            restorePanelState(panelStates);
1965        }
1966
1967        if (mDecorContentParent != null) {
1968            SparseArray<Parcelable> actionBarStates =
1969                    savedInstanceState.getSparseParcelableArray(ACTION_BAR_TAG);
1970            if (actionBarStates != null) {
1971                mDecorContentParent.restoreToolbarHierarchyState(actionBarStates);
1972            } else {
1973                Log.w(TAG, "Missing saved instance states for action bar views! " +
1974                        "State will not be restored.");
1975            }
1976        }
1977    }
1978
1979    /**
1980     * Invoked when the panels should freeze their state.
1981     *
1982     * @param icicles Save state into this. This is usually indexed by the
1983     *            featureId. This will be given to {@link #restorePanelState} in the
1984     *            future.
1985     */
1986    private void savePanelState(SparseArray<Parcelable> icicles) {
1987        PanelFeatureState[] panels = mPanels;
1988        if (panels == null) {
1989            return;
1990        }
1991
1992        for (int curFeatureId = panels.length - 1; curFeatureId >= 0; curFeatureId--) {
1993            if (panels[curFeatureId] != null) {
1994                icicles.put(curFeatureId, panels[curFeatureId].onSaveInstanceState());
1995            }
1996        }
1997    }
1998
1999    /**
2000     * Invoked when the panels should thaw their state from a previously frozen state.
2001     *
2002     * @param icicles The state saved by {@link #savePanelState} that needs to be thawed.
2003     */
2004    private void restorePanelState(SparseArray<Parcelable> icicles) {
2005        PanelFeatureState st;
2006        int curFeatureId;
2007        for (int i = icicles.size() - 1; i >= 0; i--) {
2008            curFeatureId = icicles.keyAt(i);
2009            st = getPanelState(curFeatureId, false /* required */);
2010            if (st == null) {
2011                // The panel must not have been required, and is currently not around, skip it
2012                continue;
2013            }
2014
2015            st.onRestoreInstanceState(icicles.get(curFeatureId));
2016            invalidatePanelMenu(curFeatureId);
2017        }
2018
2019        /*
2020         * Implementation note: call openPanelsAfterRestore later to actually open the
2021         * restored panels.
2022         */
2023    }
2024
2025    /**
2026     * Opens the panels that have had their state restored. This should be
2027     * called sometime after {@link #restorePanelState} when it is safe to add
2028     * to the window manager.
2029     */
2030    private void openPanelsAfterRestore() {
2031        PanelFeatureState[] panels = mPanels;
2032
2033        if (panels == null) {
2034            return;
2035        }
2036
2037        PanelFeatureState st;
2038        for (int i = panels.length - 1; i >= 0; i--) {
2039            st = panels[i];
2040            // We restore the panel if it was last open; we skip it if it
2041            // now is open, to avoid a race condition if the user immediately
2042            // opens it when we are resuming.
2043            if (st != null) {
2044                st.applyFrozenState();
2045                if (!st.isOpen && st.wasLastOpen) {
2046                    st.isInExpandedMode = st.wasLastExpanded;
2047                    openPanel(st, null);
2048                }
2049            }
2050        }
2051    }
2052
2053    private class PanelMenuPresenterCallback implements MenuPresenter.Callback {
2054        @Override
2055        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
2056            final Menu parentMenu = menu.getRootMenu();
2057            final boolean isSubMenu = parentMenu != menu;
2058            final PanelFeatureState panel = findMenuPanel(isSubMenu ? parentMenu : menu);
2059            if (panel != null) {
2060                if (isSubMenu) {
2061                    callOnPanelClosed(panel.featureId, panel, parentMenu);
2062                    closePanel(panel, true);
2063                } else {
2064                    // Close the panel and only do the callback if the menu is being
2065                    // closed completely, not if opening a sub menu
2066                    closePanel(panel, allMenusAreClosing);
2067                }
2068            }
2069        }
2070
2071        @Override
2072        public boolean onOpenSubMenu(MenuBuilder subMenu) {
2073            if (subMenu == null && hasFeature(FEATURE_ACTION_BAR)) {
2074                Callback cb = getCallback();
2075                if (cb != null && !isDestroyed()) {
2076                    cb.onMenuOpened(FEATURE_ACTION_BAR, subMenu);
2077                }
2078            }
2079
2080            return true;
2081        }
2082    }
2083
2084    private final class ActionMenuPresenterCallback implements MenuPresenter.Callback {
2085        @Override
2086        public boolean onOpenSubMenu(MenuBuilder subMenu) {
2087            Callback cb = getCallback();
2088            if (cb != null) {
2089                cb.onMenuOpened(FEATURE_ACTION_BAR, subMenu);
2090                return true;
2091            }
2092            return false;
2093        }
2094
2095        @Override
2096        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
2097            checkCloseActionMenu(menu);
2098        }
2099    }
2100
2101    private final class DecorView extends FrameLayout implements RootViewSurfaceTaker,
2102            View.OnSystemUiVisibilityChangeListener {
2103        /* package */int mDefaultOpacity = PixelFormat.OPAQUE;
2104
2105        /** The feature ID of the panel, or -1 if this is the application's DecorView */
2106        private final int mFeatureId;
2107
2108        private final Rect mDrawingBounds = new Rect();
2109
2110        private final Rect mBackgroundPadding = new Rect();
2111
2112        private final Rect mFramePadding = new Rect();
2113
2114        private final Rect mFrameOffsets = new Rect();
2115
2116        private boolean mChanging;
2117
2118        private Drawable mMenuBackground;
2119        private boolean mWatchingForMenu;
2120        private int mDownY;
2121
2122        private ActionMode mActionMode;
2123        private ActionBarContextView mActionModeView;
2124        private PopupWindow mActionModePopup;
2125        private Runnable mShowActionModePopup;
2126
2127        // View added at runtime to draw under the status bar area
2128        private View mStatusGuard;
2129        // View added at runtime to draw under the navigation bar area
2130        private View mNavigationGuard;
2131
2132        private View mStatusColorView;
2133        private View mNavigationColorView;
2134
2135        private int mLastTopInset = 0;
2136        private int mLastBottomInset = 0;
2137        private int mLastSystemUiVisibility = 0;
2138
2139
2140        public DecorView(Context context, int featureId) {
2141            super(context);
2142            mFeatureId = featureId;
2143        }
2144
2145        @Override
2146        public boolean dispatchKeyEvent(KeyEvent event) {
2147            final int keyCode = event.getKeyCode();
2148            final int action = event.getAction();
2149            final boolean isDown = action == KeyEvent.ACTION_DOWN;
2150
2151            if (isDown && (event.getRepeatCount() == 0)) {
2152                // First handle chording of panel key: if a panel key is held
2153                // but not released, try to execute a shortcut in it.
2154                if ((mPanelChordingKey > 0) && (mPanelChordingKey != keyCode)) {
2155                    boolean handled = dispatchKeyShortcutEvent(event);
2156                    if (handled) {
2157                        return true;
2158                    }
2159                }
2160
2161                // If a panel is open, perform a shortcut on it without the
2162                // chorded panel key
2163                if ((mPreparedPanel != null) && mPreparedPanel.isOpen) {
2164                    if (performPanelShortcut(mPreparedPanel, keyCode, event, 0)) {
2165                        return true;
2166                    }
2167                }
2168            }
2169
2170            if (!isDestroyed()) {
2171                final Callback cb = getCallback();
2172                final boolean handled = cb != null && mFeatureId < 0 ? cb.dispatchKeyEvent(event)
2173                        : super.dispatchKeyEvent(event);
2174                if (handled) {
2175                    return true;
2176                }
2177            }
2178
2179            return isDown ? PhoneWindow.this.onKeyDown(mFeatureId, event.getKeyCode(), event)
2180                    : PhoneWindow.this.onKeyUp(mFeatureId, event.getKeyCode(), event);
2181        }
2182
2183        @Override
2184        public boolean dispatchKeyShortcutEvent(KeyEvent ev) {
2185            // If the panel is already prepared, then perform the shortcut using it.
2186            boolean handled;
2187            if (mPreparedPanel != null) {
2188                handled = performPanelShortcut(mPreparedPanel, ev.getKeyCode(), ev,
2189                        Menu.FLAG_PERFORM_NO_CLOSE);
2190                if (handled) {
2191                    if (mPreparedPanel != null) {
2192                        mPreparedPanel.isHandled = true;
2193                    }
2194                    return true;
2195                }
2196            }
2197
2198            // Shortcut not handled by the panel.  Dispatch to the view hierarchy.
2199            final Callback cb = getCallback();
2200            handled = cb != null && !isDestroyed() && mFeatureId < 0
2201                    ? cb.dispatchKeyShortcutEvent(ev) : super.dispatchKeyShortcutEvent(ev);
2202            if (handled) {
2203                return true;
2204            }
2205
2206            // If the panel is not prepared, then we may be trying to handle a shortcut key
2207            // combination such as Control+C.  Temporarily prepare the panel then mark it
2208            // unprepared again when finished to ensure that the panel will again be prepared
2209            // the next time it is shown for real.
2210            if (mPreparedPanel == null) {
2211                PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
2212                preparePanel(st, ev);
2213                handled = performPanelShortcut(st, ev.getKeyCode(), ev,
2214                        Menu.FLAG_PERFORM_NO_CLOSE);
2215                st.isPrepared = false;
2216                if (handled) {
2217                    return true;
2218                }
2219            }
2220            return false;
2221        }
2222
2223        @Override
2224        public boolean dispatchTouchEvent(MotionEvent ev) {
2225            final Callback cb = getCallback();
2226            return cb != null && !isDestroyed() && mFeatureId < 0 ? cb.dispatchTouchEvent(ev)
2227                    : super.dispatchTouchEvent(ev);
2228        }
2229
2230        @Override
2231        public boolean dispatchTrackballEvent(MotionEvent ev) {
2232            final Callback cb = getCallback();
2233            return cb != null && !isDestroyed() && mFeatureId < 0 ? cb.dispatchTrackballEvent(ev)
2234                    : super.dispatchTrackballEvent(ev);
2235        }
2236
2237        @Override
2238        public boolean dispatchGenericMotionEvent(MotionEvent ev) {
2239            final Callback cb = getCallback();
2240            return cb != null && !isDestroyed() && mFeatureId < 0 ? cb.dispatchGenericMotionEvent(ev)
2241                    : super.dispatchGenericMotionEvent(ev);
2242        }
2243
2244        public boolean superDispatchKeyEvent(KeyEvent event) {
2245            // Give priority to closing action modes if applicable.
2246            if (event.getKeyCode() == KeyEvent.KEYCODE_BACK) {
2247                final int action = event.getAction();
2248                // Back cancels action modes first.
2249                if (mActionMode != null) {
2250                    if (action == KeyEvent.ACTION_UP) {
2251                        mActionMode.finish();
2252                    }
2253                    return true;
2254                }
2255            }
2256
2257            return super.dispatchKeyEvent(event);
2258        }
2259
2260        public boolean superDispatchKeyShortcutEvent(KeyEvent event) {
2261            return super.dispatchKeyShortcutEvent(event);
2262        }
2263
2264        public boolean superDispatchTouchEvent(MotionEvent event) {
2265            return super.dispatchTouchEvent(event);
2266        }
2267
2268        public boolean superDispatchTrackballEvent(MotionEvent event) {
2269            return super.dispatchTrackballEvent(event);
2270        }
2271
2272        public boolean superDispatchGenericMotionEvent(MotionEvent event) {
2273            return super.dispatchGenericMotionEvent(event);
2274        }
2275
2276        @Override
2277        public WindowInsets dispatchApplyWindowInsets(WindowInsets insets) {
2278            if (mOutsetBottom != null) {
2279                final DisplayMetrics metrics = getContext().getResources().getDisplayMetrics();
2280                int bottom = (int) mOutsetBottom.getDimension(metrics);
2281                WindowInsets newInsets = insets.replaceSystemWindowInsets(
2282                        insets.getSystemWindowInsetLeft(), insets.getSystemWindowInsetTop(),
2283                        insets.getSystemWindowInsetRight(),
2284                        insets.getSystemWindowInsetBottom() + bottom);
2285                return super.dispatchApplyWindowInsets(newInsets);
2286            } else {
2287                return super.dispatchApplyWindowInsets(insets);
2288            }
2289        }
2290
2291
2292        @Override
2293        public boolean onTouchEvent(MotionEvent event) {
2294            return onInterceptTouchEvent(event);
2295        }
2296
2297        private boolean isOutOfBounds(int x, int y) {
2298            return x < -5 || y < -5 || x > (getWidth() + 5)
2299                    || y > (getHeight() + 5);
2300        }
2301
2302        @Override
2303        public boolean onInterceptTouchEvent(MotionEvent event) {
2304            int action = event.getAction();
2305            if (mFeatureId >= 0) {
2306                if (action == MotionEvent.ACTION_DOWN) {
2307                    int x = (int)event.getX();
2308                    int y = (int)event.getY();
2309                    if (isOutOfBounds(x, y)) {
2310                        closePanel(mFeatureId);
2311                        return true;
2312                    }
2313                }
2314            }
2315
2316            if (!SWEEP_OPEN_MENU) {
2317                return false;
2318            }
2319
2320            if (mFeatureId >= 0) {
2321                if (action == MotionEvent.ACTION_DOWN) {
2322                    Log.i(TAG, "Watchiing!");
2323                    mWatchingForMenu = true;
2324                    mDownY = (int) event.getY();
2325                    return false;
2326                }
2327
2328                if (!mWatchingForMenu) {
2329                    return false;
2330                }
2331
2332                int y = (int)event.getY();
2333                if (action == MotionEvent.ACTION_MOVE) {
2334                    if (y > (mDownY+30)) {
2335                        Log.i(TAG, "Closing!");
2336                        closePanel(mFeatureId);
2337                        mWatchingForMenu = false;
2338                        return true;
2339                    }
2340                } else if (action == MotionEvent.ACTION_UP) {
2341                    mWatchingForMenu = false;
2342                }
2343
2344                return false;
2345            }
2346
2347            //Log.i(TAG, "Intercept: action=" + action + " y=" + event.getY()
2348            //        + " (in " + getHeight() + ")");
2349
2350            if (action == MotionEvent.ACTION_DOWN) {
2351                int y = (int)event.getY();
2352                if (y >= (getHeight()-5) && !hasChildren()) {
2353                    Log.i(TAG, "Watchiing!");
2354                    mWatchingForMenu = true;
2355                }
2356                return false;
2357            }
2358
2359            if (!mWatchingForMenu) {
2360                return false;
2361            }
2362
2363            int y = (int)event.getY();
2364            if (action == MotionEvent.ACTION_MOVE) {
2365                if (y < (getHeight()-30)) {
2366                    Log.i(TAG, "Opening!");
2367                    openPanel(FEATURE_OPTIONS_PANEL, new KeyEvent(
2368                            KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MENU));
2369                    mWatchingForMenu = false;
2370                    return true;
2371                }
2372            } else if (action == MotionEvent.ACTION_UP) {
2373                mWatchingForMenu = false;
2374            }
2375
2376            return false;
2377        }
2378
2379        @Override
2380        public void sendAccessibilityEvent(int eventType) {
2381            if (!AccessibilityManager.getInstance(mContext).isEnabled()) {
2382                return;
2383            }
2384
2385            // if we are showing a feature that should be announced and one child
2386            // make this child the event source since this is the feature itself
2387            // otherwise the callback will take over and announce its client
2388            if ((mFeatureId == FEATURE_OPTIONS_PANEL ||
2389                    mFeatureId == FEATURE_CONTEXT_MENU ||
2390                    mFeatureId == FEATURE_PROGRESS ||
2391                    mFeatureId == FEATURE_INDETERMINATE_PROGRESS)
2392                    && getChildCount() == 1) {
2393                getChildAt(0).sendAccessibilityEvent(eventType);
2394            } else {
2395                super.sendAccessibilityEvent(eventType);
2396            }
2397        }
2398
2399        @Override
2400        public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
2401            final Callback cb = getCallback();
2402            if (cb != null && !isDestroyed()) {
2403                if (cb.dispatchPopulateAccessibilityEvent(event)) {
2404                    return true;
2405                }
2406            }
2407            return super.dispatchPopulateAccessibilityEvent(event);
2408        }
2409
2410        @Override
2411        protected boolean setFrame(int l, int t, int r, int b) {
2412            boolean changed = super.setFrame(l, t, r, b);
2413            if (changed) {
2414                final Rect drawingBounds = mDrawingBounds;
2415                getDrawingRect(drawingBounds);
2416
2417                Drawable fg = getForeground();
2418                if (fg != null) {
2419                    final Rect frameOffsets = mFrameOffsets;
2420                    drawingBounds.left += frameOffsets.left;
2421                    drawingBounds.top += frameOffsets.top;
2422                    drawingBounds.right -= frameOffsets.right;
2423                    drawingBounds.bottom -= frameOffsets.bottom;
2424                    fg.setBounds(drawingBounds);
2425                    final Rect framePadding = mFramePadding;
2426                    drawingBounds.left += framePadding.left - frameOffsets.left;
2427                    drawingBounds.top += framePadding.top - frameOffsets.top;
2428                    drawingBounds.right -= framePadding.right - frameOffsets.right;
2429                    drawingBounds.bottom -= framePadding.bottom - frameOffsets.bottom;
2430                }
2431
2432                Drawable bg = getBackground();
2433                if (bg != null) {
2434                    bg.setBounds(drawingBounds);
2435                }
2436
2437                if (SWEEP_OPEN_MENU) {
2438                    if (mMenuBackground == null && mFeatureId < 0
2439                            && getAttributes().height
2440                            == WindowManager.LayoutParams.MATCH_PARENT) {
2441                        mMenuBackground = getContext().getDrawable(
2442                                com.android.internal.R.drawable.menu_background);
2443                    }
2444                    if (mMenuBackground != null) {
2445                        mMenuBackground.setBounds(drawingBounds.left,
2446                                drawingBounds.bottom-6, drawingBounds.right,
2447                                drawingBounds.bottom+20);
2448                    }
2449                }
2450            }
2451            return changed;
2452        }
2453
2454        @Override
2455        protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
2456            final DisplayMetrics metrics = getContext().getResources().getDisplayMetrics();
2457            final boolean isPortrait = metrics.widthPixels < metrics.heightPixels;
2458
2459            final int widthMode = getMode(widthMeasureSpec);
2460            final int heightMode = getMode(heightMeasureSpec);
2461
2462            boolean fixedWidth = false;
2463            if (widthMode == AT_MOST) {
2464                final TypedValue tvw = isPortrait ? mFixedWidthMinor : mFixedWidthMajor;
2465                if (tvw != null && tvw.type != TypedValue.TYPE_NULL) {
2466                    final int w;
2467                    if (tvw.type == TypedValue.TYPE_DIMENSION) {
2468                        w = (int) tvw.getDimension(metrics);
2469                    } else if (tvw.type == TypedValue.TYPE_FRACTION) {
2470                        w = (int) tvw.getFraction(metrics.widthPixels, metrics.widthPixels);
2471                    } else {
2472                        w = 0;
2473                    }
2474
2475                    if (w > 0) {
2476                        final int widthSize = MeasureSpec.getSize(widthMeasureSpec);
2477                        widthMeasureSpec = MeasureSpec.makeMeasureSpec(
2478                                Math.min(w, widthSize), EXACTLY);
2479                        fixedWidth = true;
2480                    }
2481                }
2482            }
2483
2484            if (heightMode == AT_MOST) {
2485                final TypedValue tvh = isPortrait ? mFixedHeightMajor : mFixedHeightMinor;
2486                if (tvh != null && tvh.type != TypedValue.TYPE_NULL) {
2487                    final int h;
2488                    if (tvh.type == TypedValue.TYPE_DIMENSION) {
2489                        h = (int) tvh.getDimension(metrics);
2490                    } else if (tvh.type == TypedValue.TYPE_FRACTION) {
2491                        h = (int) tvh.getFraction(metrics.heightPixels, metrics.heightPixels);
2492                    } else {
2493                        h = 0;
2494                    }
2495                    if (h > 0) {
2496                        final int heightSize = MeasureSpec.getSize(heightMeasureSpec);
2497                        heightMeasureSpec = MeasureSpec.makeMeasureSpec(
2498                                Math.min(h, heightSize), EXACTLY);
2499                    }
2500                }
2501            }
2502
2503            if (mOutsetBottom != null) {
2504                int mode = MeasureSpec.getMode(heightMeasureSpec);
2505                if (mode != MeasureSpec.UNSPECIFIED) {
2506                    int outset = (int) mOutsetBottom.getDimension(metrics);
2507                    int height = MeasureSpec.getSize(heightMeasureSpec);
2508                    heightMeasureSpec = MeasureSpec.makeMeasureSpec(height + outset, mode);
2509                }
2510            }
2511
2512            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
2513
2514            int width = getMeasuredWidth();
2515            boolean measure = false;
2516
2517            widthMeasureSpec = MeasureSpec.makeMeasureSpec(width, EXACTLY);
2518
2519            if (!fixedWidth && widthMode == AT_MOST) {
2520                final TypedValue tv = isPortrait ? mMinWidthMinor : mMinWidthMajor;
2521                if (tv.type != TypedValue.TYPE_NULL) {
2522                    final int min;
2523                    if (tv.type == TypedValue.TYPE_DIMENSION) {
2524                        min = (int)tv.getDimension(metrics);
2525                    } else if (tv.type == TypedValue.TYPE_FRACTION) {
2526                        min = (int)tv.getFraction(metrics.widthPixels, metrics.widthPixels);
2527                    } else {
2528                        min = 0;
2529                    }
2530
2531                    if (width < min) {
2532                        widthMeasureSpec = MeasureSpec.makeMeasureSpec(min, EXACTLY);
2533                        measure = true;
2534                    }
2535                }
2536            }
2537
2538            // TODO: Support height?
2539
2540            if (measure) {
2541                super.onMeasure(widthMeasureSpec, heightMeasureSpec);
2542            }
2543        }
2544
2545        @Override
2546        public void draw(Canvas canvas) {
2547            super.draw(canvas);
2548
2549            if (mMenuBackground != null) {
2550                mMenuBackground.draw(canvas);
2551            }
2552        }
2553
2554
2555        @Override
2556        public boolean showContextMenuForChild(View originalView) {
2557            // Reuse the context menu builder
2558            if (mContextMenu == null) {
2559                mContextMenu = new ContextMenuBuilder(getContext());
2560                mContextMenu.setCallback(mContextMenuCallback);
2561            } else {
2562                mContextMenu.clearAll();
2563            }
2564
2565            final MenuDialogHelper helper = mContextMenu.show(originalView,
2566                    originalView.getWindowToken());
2567            if (helper != null) {
2568                helper.setPresenterCallback(mContextMenuCallback);
2569            } else if (mContextMenuHelper != null) {
2570                // No menu to show, but if we have a menu currently showing it just became blank.
2571                // Close it.
2572                mContextMenuHelper.dismiss();
2573            }
2574            mContextMenuHelper = helper;
2575            return helper != null;
2576        }
2577
2578        @Override
2579        public ActionMode startActionModeForChild(View originalView,
2580                ActionMode.Callback callback) {
2581            // originalView can be used here to be sure that we don't obscure
2582            // relevant content with the context mode UI.
2583            return startActionMode(callback);
2584        }
2585
2586        @Override
2587        public ActionMode startActionMode(ActionMode.Callback callback) {
2588            if (mActionMode != null) {
2589                mActionMode.finish();
2590            }
2591
2592            final ActionMode.Callback wrappedCallback = new ActionModeCallbackWrapper(callback);
2593            ActionMode mode = null;
2594            if (getCallback() != null && !isDestroyed()) {
2595                try {
2596                    mode = getCallback().onWindowStartingActionMode(wrappedCallback);
2597                } catch (AbstractMethodError ame) {
2598                    // Older apps might not implement this callback method.
2599                }
2600            }
2601            if (mode != null) {
2602                mActionMode = mode;
2603            } else {
2604                if (mActionModeView == null) {
2605                    if (isFloating()) {
2606                        mActionModeView = new ActionBarContextView(mContext);
2607                        mActionModePopup = new PopupWindow(mContext, null,
2608                                com.android.internal.R.attr.actionModePopupWindowStyle);
2609                        mActionModePopup.setWindowLayoutType(
2610                                WindowManager.LayoutParams.TYPE_APPLICATION);
2611                        mActionModePopup.setContentView(mActionModeView);
2612                        mActionModePopup.setWidth(MATCH_PARENT);
2613
2614                        TypedValue heightValue = new TypedValue();
2615                        mContext.getTheme().resolveAttribute(
2616                                com.android.internal.R.attr.actionBarSize, heightValue, true);
2617                        final int height = TypedValue.complexToDimensionPixelSize(heightValue.data,
2618                                mContext.getResources().getDisplayMetrics());
2619                        mActionModeView.setContentHeight(height);
2620                        mActionModePopup.setHeight(WRAP_CONTENT);
2621                        mShowActionModePopup = new Runnable() {
2622                            public void run() {
2623                                mActionModePopup.showAtLocation(
2624                                        mActionModeView.getApplicationWindowToken(),
2625                                        Gravity.TOP | Gravity.FILL_HORIZONTAL, 0, 0);
2626                            }
2627                        };
2628                    } else {
2629                        ViewStub stub = (ViewStub) findViewById(
2630                                com.android.internal.R.id.action_mode_bar_stub);
2631                        if (stub != null) {
2632                            mActionModeView = (ActionBarContextView) stub.inflate();
2633                        }
2634                    }
2635                }
2636
2637                if (mActionModeView != null) {
2638                    mActionModeView.killMode();
2639                    mode = new StandaloneActionMode(getContext(), mActionModeView, wrappedCallback,
2640                            mActionModePopup == null);
2641                    if (callback.onCreateActionMode(mode, mode.getMenu())) {
2642                        mode.invalidate();
2643                        mActionModeView.initForMode(mode);
2644                        mActionModeView.setVisibility(View.VISIBLE);
2645                        mActionMode = mode;
2646                        if (mActionModePopup != null) {
2647                            post(mShowActionModePopup);
2648                        }
2649                        mActionModeView.sendAccessibilityEvent(
2650                                AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
2651                    } else {
2652                        mActionMode = null;
2653                    }
2654                }
2655            }
2656            if (mActionMode != null && getCallback() != null && !isDestroyed()) {
2657                try {
2658                    getCallback().onActionModeStarted(mActionMode);
2659                } catch (AbstractMethodError ame) {
2660                    // Older apps might not implement this callback method.
2661                }
2662            }
2663            return mActionMode;
2664        }
2665
2666        public void startChanging() {
2667            mChanging = true;
2668        }
2669
2670        public void finishChanging() {
2671            mChanging = false;
2672            drawableChanged();
2673        }
2674
2675        public void setWindowBackground(Drawable drawable) {
2676            if (getBackground() != drawable) {
2677                setBackgroundDrawable(drawable);
2678                if (drawable != null) {
2679                    drawable.getPadding(mBackgroundPadding);
2680                } else {
2681                    mBackgroundPadding.setEmpty();
2682                }
2683                drawableChanged();
2684            }
2685        }
2686
2687        @Override
2688        public void setBackgroundDrawable(Drawable d) {
2689            super.setBackgroundDrawable(d);
2690            if (getWindowToken() != null) {
2691                updateWindowResizeState();
2692            }
2693        }
2694
2695        public void setWindowFrame(Drawable drawable) {
2696            if (getForeground() != drawable) {
2697                setForeground(drawable);
2698                if (drawable != null) {
2699                    drawable.getPadding(mFramePadding);
2700                } else {
2701                    mFramePadding.setEmpty();
2702                }
2703                drawableChanged();
2704            }
2705        }
2706
2707        @Override
2708        public void onSystemUiVisibilityChange(int visible) {
2709            mLastSystemUiVisibility = visible;
2710            updateColorViews(null /* insets */);
2711        }
2712
2713        @Override
2714        public WindowInsets onApplyWindowInsets(WindowInsets insets) {
2715            mFrameOffsets.set(insets.getSystemWindowInsets());
2716            updateColorViews(insets);
2717            insets = updateStatusGuard(insets);
2718            updateNavigationGuard(insets);
2719            if (getForeground() != null) {
2720                drawableChanged();
2721            }
2722            return insets;
2723        }
2724
2725        @Override
2726        public boolean isTransitionGroup() {
2727            return false;
2728        }
2729
2730        private WindowInsets updateColorViews(WindowInsets insets) {
2731            if (!mIsFloating && ActivityManager.isHighEndGfx()) {
2732                if (insets != null) {
2733                    mLastTopInset = insets.getStableInsetTop();
2734                    mLastBottomInset = insets.getStableInsetBottom();
2735                }
2736                mStatusColorView = updateColorViewInt(mStatusColorView,
2737                        SYSTEM_UI_FLAG_FULLSCREEN, FLAG_TRANSLUCENT_STATUS,
2738                        mStatusBarColor, mLastTopInset, Gravity.TOP,
2739                        STATUS_BAR_BACKGROUND_TRANSITION_NAME);
2740                mNavigationColorView = updateColorViewInt(mNavigationColorView,
2741                        SYSTEM_UI_FLAG_HIDE_NAVIGATION, FLAG_TRANSLUCENT_NAVIGATION,
2742                        mNavigationBarColor, mLastBottomInset, Gravity.BOTTOM,
2743                        NAVIGATION_BAR_BACKGROUND_TRANSITION_NAME);
2744            }
2745            if (insets != null) {
2746                insets = insets.consumeStableInsets();
2747            }
2748            return insets;
2749        }
2750
2751        private View updateColorViewInt(View view, int systemUiHideFlag, int translucentFlag,
2752                int color, int height, int verticalGravity, String transitionName) {
2753            boolean show = height > 0 && (mLastSystemUiVisibility & systemUiHideFlag) == 0
2754                    && (getAttributes().flags & translucentFlag) == 0
2755                    && (color & Color.BLACK) != 0
2756                    && (getAttributes().flags & FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS) != 0;
2757
2758            if (view == null) {
2759                if (show) {
2760                    view = new View(mContext);
2761                    view.setBackgroundColor(color);
2762                    view.setTransitionName(transitionName);
2763                    addView(view, new LayoutParams(LayoutParams.MATCH_PARENT, height,
2764                            Gravity.START | verticalGravity));
2765                }
2766            } else {
2767                int vis = show ? VISIBLE : INVISIBLE;
2768                view.setVisibility(vis);
2769                if (show) {
2770                    LayoutParams lp = (LayoutParams) view.getLayoutParams();
2771                    if (lp.height != height) {
2772                        lp.height = height;
2773                        view.setLayoutParams(lp);
2774                    }
2775                    view.setBackgroundColor(color);
2776                }
2777            }
2778            return view;
2779        }
2780
2781        private WindowInsets updateStatusGuard(WindowInsets insets) {
2782            boolean showStatusGuard = false;
2783            // Show the status guard when the non-overlay contextual action bar is showing
2784            if (mActionModeView != null) {
2785                if (mActionModeView.getLayoutParams() instanceof MarginLayoutParams) {
2786                    MarginLayoutParams mlp = (MarginLayoutParams) mActionModeView.getLayoutParams();
2787                    boolean mlpChanged = false;
2788                    final boolean nonOverlayShown =
2789                            (getLocalFeatures() & (1 << FEATURE_ACTION_MODE_OVERLAY)) == 0
2790                            && mActionModeView.isShown();
2791                    if (nonOverlayShown) {
2792                        // set top margin to top insets, show status guard
2793                        if (mlp.topMargin != insets.getSystemWindowInsetTop()) {
2794                            mlpChanged = true;
2795                            mlp.topMargin = insets.getSystemWindowInsetTop();
2796                            if (mStatusGuard == null) {
2797                                mStatusGuard = new View(mContext);
2798                                mStatusGuard.setBackgroundColor(mContext.getResources()
2799                                        .getColor(R.color.input_method_navigation_guard));
2800                                addView(mStatusGuard, indexOfChild(mStatusColorView),
2801                                        new LayoutParams(LayoutParams.MATCH_PARENT, mlp.topMargin,
2802                                                Gravity.START | Gravity.TOP));
2803                            } else {
2804                                LayoutParams lp = (LayoutParams) mStatusGuard.getLayoutParams();
2805                                if (lp.height != mlp.topMargin) {
2806                                    lp.height = mlp.topMargin;
2807                                    mStatusGuard.setLayoutParams(lp);
2808                                }
2809                            }
2810                        }
2811                        insets = insets.consumeSystemWindowInsets(
2812                                false, true /* top */, false, false);
2813                        showStatusGuard = true;
2814                    } else {
2815                        // reset top margin
2816                        if (mlp.topMargin != 0) {
2817                            mlpChanged = true;
2818                            mlp.topMargin = 0;
2819                        }
2820                    }
2821                    if (mlpChanged) {
2822                        mActionModeView.setLayoutParams(mlp);
2823                    }
2824                }
2825            }
2826            if (mStatusGuard != null) {
2827                mStatusGuard.setVisibility(showStatusGuard ? View.VISIBLE : View.GONE);
2828            }
2829            return insets;
2830        }
2831
2832        private void updateNavigationGuard(WindowInsets insets) {
2833            // IMEs lay out below the nav bar, but the content view must not (for back compat)
2834            if (getAttributes().type == WindowManager.LayoutParams.TYPE_INPUT_METHOD) {
2835                // prevent the content view from including the nav bar height
2836                if (mContentParent != null) {
2837                    if (mContentParent.getLayoutParams() instanceof MarginLayoutParams) {
2838                        MarginLayoutParams mlp =
2839                                (MarginLayoutParams) mContentParent.getLayoutParams();
2840                        mlp.bottomMargin = insets.getSystemWindowInsetBottom();
2841                        mContentParent.setLayoutParams(mlp);
2842                    }
2843                }
2844                // position the navigation guard view, creating it if necessary
2845                if (mNavigationGuard == null) {
2846                    mNavigationGuard = new View(mContext);
2847                    mNavigationGuard.setBackgroundColor(mContext.getResources()
2848                            .getColor(R.color.input_method_navigation_guard));
2849                    addView(mNavigationGuard, indexOfChild(mNavigationColorView), new LayoutParams(
2850                            LayoutParams.MATCH_PARENT, insets.getSystemWindowInsetBottom(),
2851                            Gravity.START | Gravity.BOTTOM));
2852                } else {
2853                    LayoutParams lp = (LayoutParams) mNavigationGuard.getLayoutParams();
2854                    lp.height = insets.getSystemWindowInsetBottom();
2855                    mNavigationGuard.setLayoutParams(lp);
2856                }
2857            }
2858        }
2859
2860        private void drawableChanged() {
2861            if (mChanging) {
2862                return;
2863            }
2864
2865            setPadding(mFramePadding.left + mBackgroundPadding.left, mFramePadding.top
2866                    + mBackgroundPadding.top, mFramePadding.right + mBackgroundPadding.right,
2867                    mFramePadding.bottom + mBackgroundPadding.bottom);
2868            requestLayout();
2869            invalidate();
2870
2871            int opacity = PixelFormat.OPAQUE;
2872
2873            // Note: if there is no background, we will assume opaque. The
2874            // common case seems to be that an application sets there to be
2875            // no background so it can draw everything itself. For that,
2876            // we would like to assume OPAQUE and let the app force it to
2877            // the slower TRANSLUCENT mode if that is really what it wants.
2878            Drawable bg = getBackground();
2879            Drawable fg = getForeground();
2880            if (bg != null) {
2881                if (fg == null) {
2882                    opacity = bg.getOpacity();
2883                } else if (mFramePadding.left <= 0 && mFramePadding.top <= 0
2884                        && mFramePadding.right <= 0 && mFramePadding.bottom <= 0) {
2885                    // If the frame padding is zero, then we can be opaque
2886                    // if either the frame -or- the background is opaque.
2887                    int fop = fg.getOpacity();
2888                    int bop = bg.getOpacity();
2889                    if (false)
2890                        Log.v(TAG, "Background opacity: " + bop + ", Frame opacity: " + fop);
2891                    if (fop == PixelFormat.OPAQUE || bop == PixelFormat.OPAQUE) {
2892                        opacity = PixelFormat.OPAQUE;
2893                    } else if (fop == PixelFormat.UNKNOWN) {
2894                        opacity = bop;
2895                    } else if (bop == PixelFormat.UNKNOWN) {
2896                        opacity = fop;
2897                    } else {
2898                        opacity = Drawable.resolveOpacity(fop, bop);
2899                    }
2900                } else {
2901                    // For now we have to assume translucent if there is a
2902                    // frame with padding... there is no way to tell if the
2903                    // frame and background together will draw all pixels.
2904                    if (false)
2905                        Log.v(TAG, "Padding: " + mFramePadding);
2906                    opacity = PixelFormat.TRANSLUCENT;
2907                }
2908            }
2909
2910            if (false)
2911                Log.v(TAG, "Background: " + bg + ", Frame: " + fg);
2912            if (false)
2913                Log.v(TAG, "Selected default opacity: " + opacity);
2914
2915            mDefaultOpacity = opacity;
2916            if (mFeatureId < 0) {
2917                setDefaultWindowFormat(opacity);
2918            }
2919        }
2920
2921        @Override
2922        public void onWindowFocusChanged(boolean hasWindowFocus) {
2923            super.onWindowFocusChanged(hasWindowFocus);
2924
2925            // If the user is chording a menu shortcut, release the chord since
2926            // this window lost focus
2927            if (!hasWindowFocus && mPanelChordingKey != 0) {
2928                closePanel(FEATURE_OPTIONS_PANEL);
2929            }
2930
2931            final Callback cb = getCallback();
2932            if (cb != null && !isDestroyed() && mFeatureId < 0) {
2933                cb.onWindowFocusChanged(hasWindowFocus);
2934            }
2935        }
2936
2937        void updateWindowResizeState() {
2938            Drawable bg = getBackground();
2939            hackTurnOffWindowResizeAnim(bg == null || bg.getOpacity()
2940                    != PixelFormat.OPAQUE);
2941        }
2942
2943        @Override
2944        protected void onAttachedToWindow() {
2945            super.onAttachedToWindow();
2946
2947            updateWindowResizeState();
2948
2949            final Callback cb = getCallback();
2950            if (cb != null && !isDestroyed() && mFeatureId < 0) {
2951                cb.onAttachedToWindow();
2952            }
2953
2954            if (mFeatureId == -1) {
2955                /*
2956                 * The main window has been attached, try to restore any panels
2957                 * that may have been open before. This is called in cases where
2958                 * an activity is being killed for configuration change and the
2959                 * menu was open. When the activity is recreated, the menu
2960                 * should be shown again.
2961                 */
2962                openPanelsAfterRestore();
2963            }
2964        }
2965
2966        @Override
2967        protected void onDetachedFromWindow() {
2968            super.onDetachedFromWindow();
2969
2970            final Callback cb = getCallback();
2971            if (cb != null && mFeatureId < 0) {
2972                cb.onDetachedFromWindow();
2973            }
2974
2975            if (mDecorContentParent != null) {
2976                mDecorContentParent.dismissPopups();
2977            }
2978
2979            if (mActionModePopup != null) {
2980                removeCallbacks(mShowActionModePopup);
2981                if (mActionModePopup.isShowing()) {
2982                    mActionModePopup.dismiss();
2983                }
2984                mActionModePopup = null;
2985            }
2986
2987            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
2988            if (st != null && st.menu != null && mFeatureId < 0) {
2989                st.menu.close();
2990            }
2991        }
2992
2993        @Override
2994        public void onCloseSystemDialogs(String reason) {
2995            if (mFeatureId >= 0) {
2996                closeAllPanels();
2997            }
2998        }
2999
3000        public android.view.SurfaceHolder.Callback2 willYouTakeTheSurface() {
3001            return mFeatureId < 0 ? mTakeSurfaceCallback : null;
3002        }
3003
3004        public InputQueue.Callback willYouTakeTheInputQueue() {
3005            return mFeatureId < 0 ? mTakeInputQueueCallback : null;
3006        }
3007
3008        public void setSurfaceType(int type) {
3009            PhoneWindow.this.setType(type);
3010        }
3011
3012        public void setSurfaceFormat(int format) {
3013            PhoneWindow.this.setFormat(format);
3014        }
3015
3016        public void setSurfaceKeepScreenOn(boolean keepOn) {
3017            if (keepOn) PhoneWindow.this.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
3018            else PhoneWindow.this.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
3019        }
3020
3021        /**
3022         * Clears out internal reference when the action mode is destroyed.
3023         */
3024        private class ActionModeCallbackWrapper implements ActionMode.Callback {
3025            private ActionMode.Callback mWrapped;
3026
3027            public ActionModeCallbackWrapper(ActionMode.Callback wrapped) {
3028                mWrapped = wrapped;
3029            }
3030
3031            public boolean onCreateActionMode(ActionMode mode, Menu menu) {
3032                return mWrapped.onCreateActionMode(mode, menu);
3033            }
3034
3035            public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
3036                requestFitSystemWindows();
3037                return mWrapped.onPrepareActionMode(mode, menu);
3038            }
3039
3040            public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
3041                return mWrapped.onActionItemClicked(mode, item);
3042            }
3043
3044            public void onDestroyActionMode(ActionMode mode) {
3045                mWrapped.onDestroyActionMode(mode);
3046                if (mActionModePopup != null) {
3047                    removeCallbacks(mShowActionModePopup);
3048                    mActionModePopup.dismiss();
3049                } else if (mActionModeView != null) {
3050                    mActionModeView.setVisibility(GONE);
3051                }
3052                if (mActionModeView != null) {
3053                    mActionModeView.removeAllViews();
3054                }
3055                if (getCallback() != null && !isDestroyed()) {
3056                    try {
3057                        getCallback().onActionModeFinished(mActionMode);
3058                    } catch (AbstractMethodError ame) {
3059                        // Older apps might not implement this callback method.
3060                    }
3061                }
3062                mActionMode = null;
3063                requestFitSystemWindows();
3064            }
3065        }
3066    }
3067
3068    protected DecorView generateDecor() {
3069        return new DecorView(getContext(), -1);
3070    }
3071
3072    protected void setFeatureFromAttrs(int featureId, TypedArray attrs,
3073            int drawableAttr, int alphaAttr) {
3074        Drawable d = attrs.getDrawable(drawableAttr);
3075        if (d != null) {
3076            requestFeature(featureId);
3077            setFeatureDefaultDrawable(featureId, d);
3078        }
3079        if ((getFeatures() & (1 << featureId)) != 0) {
3080            int alpha = attrs.getInt(alphaAttr, -1);
3081            if (alpha >= 0) {
3082                setFeatureDrawableAlpha(featureId, alpha);
3083            }
3084        }
3085    }
3086
3087    protected ViewGroup generateLayout(DecorView decor) {
3088        // Apply data from current theme.
3089
3090        TypedArray a = getWindowStyle();
3091
3092        if (false) {
3093            System.out.println("From style:");
3094            String s = "Attrs:";
3095            for (int i = 0; i < com.android.internal.R.styleable.Window.length; i++) {
3096                s = s + " " + Integer.toHexString(com.android.internal.R.styleable.Window[i]) + "="
3097                        + a.getString(i);
3098            }
3099            System.out.println(s);
3100        }
3101
3102        mIsFloating = a.getBoolean(com.android.internal.R.styleable.Window_windowIsFloating, false);
3103        int flagsToUpdate = (FLAG_LAYOUT_IN_SCREEN|FLAG_LAYOUT_INSET_DECOR)
3104                & (~getForcedWindowFlags());
3105        if (mIsFloating) {
3106            setLayout(WRAP_CONTENT, WRAP_CONTENT);
3107            setFlags(0, flagsToUpdate);
3108        } else {
3109            setFlags(FLAG_LAYOUT_IN_SCREEN|FLAG_LAYOUT_INSET_DECOR, flagsToUpdate);
3110        }
3111
3112        if (a.getBoolean(com.android.internal.R.styleable.Window_windowNoTitle, false)) {
3113            requestFeature(FEATURE_NO_TITLE);
3114        } else if (a.getBoolean(com.android.internal.R.styleable.Window_windowActionBar, false)) {
3115            // Don't allow an action bar if there is no title.
3116            requestFeature(FEATURE_ACTION_BAR);
3117        }
3118
3119        if (a.getBoolean(com.android.internal.R.styleable.Window_windowActionBarOverlay, false)) {
3120            requestFeature(FEATURE_ACTION_BAR_OVERLAY);
3121        }
3122
3123        if (a.getBoolean(com.android.internal.R.styleable.Window_windowActionModeOverlay, false)) {
3124            requestFeature(FEATURE_ACTION_MODE_OVERLAY);
3125        }
3126
3127        if (a.getBoolean(com.android.internal.R.styleable.Window_windowSwipeToDismiss, false)) {
3128            requestFeature(FEATURE_SWIPE_TO_DISMISS);
3129        }
3130
3131        if (a.getBoolean(com.android.internal.R.styleable.Window_windowFullscreen, false)) {
3132            setFlags(FLAG_FULLSCREEN, FLAG_FULLSCREEN & (~getForcedWindowFlags()));
3133        }
3134
3135        if (a.getBoolean(com.android.internal.R.styleable.Window_windowTranslucentStatus,
3136                false)) {
3137            setFlags(FLAG_TRANSLUCENT_STATUS, FLAG_TRANSLUCENT_STATUS
3138                    & (~getForcedWindowFlags()));
3139        }
3140
3141        if (a.getBoolean(com.android.internal.R.styleable.Window_windowTranslucentNavigation,
3142                false)) {
3143            setFlags(FLAG_TRANSLUCENT_NAVIGATION, FLAG_TRANSLUCENT_NAVIGATION
3144                    & (~getForcedWindowFlags()));
3145        }
3146
3147        if (a.getBoolean(com.android.internal.R.styleable.Window_windowOverscan, false)) {
3148            setFlags(FLAG_LAYOUT_IN_OVERSCAN, FLAG_LAYOUT_IN_OVERSCAN&(~getForcedWindowFlags()));
3149        }
3150
3151        if (a.getBoolean(com.android.internal.R.styleable.Window_windowShowWallpaper, false)) {
3152            setFlags(FLAG_SHOW_WALLPAPER, FLAG_SHOW_WALLPAPER&(~getForcedWindowFlags()));
3153        }
3154
3155        if (a.getBoolean(com.android.internal.R.styleable.Window_windowEnableSplitTouch,
3156                getContext().getApplicationInfo().targetSdkVersion
3157                        >= android.os.Build.VERSION_CODES.HONEYCOMB)) {
3158            setFlags(FLAG_SPLIT_TOUCH, FLAG_SPLIT_TOUCH&(~getForcedWindowFlags()));
3159        }
3160
3161        a.getValue(com.android.internal.R.styleable.Window_windowMinWidthMajor, mMinWidthMajor);
3162        a.getValue(com.android.internal.R.styleable.Window_windowMinWidthMinor, mMinWidthMinor);
3163        if (a.hasValue(com.android.internal.R.styleable.Window_windowFixedWidthMajor)) {
3164            if (mFixedWidthMajor == null) mFixedWidthMajor = new TypedValue();
3165            a.getValue(com.android.internal.R.styleable.Window_windowFixedWidthMajor,
3166                    mFixedWidthMajor);
3167        }
3168        if (a.hasValue(com.android.internal.R.styleable.Window_windowFixedWidthMinor)) {
3169            if (mFixedWidthMinor == null) mFixedWidthMinor = new TypedValue();
3170            a.getValue(com.android.internal.R.styleable.Window_windowFixedWidthMinor,
3171                    mFixedWidthMinor);
3172        }
3173        if (a.hasValue(com.android.internal.R.styleable.Window_windowFixedHeightMajor)) {
3174            if (mFixedHeightMajor == null) mFixedHeightMajor = new TypedValue();
3175            a.getValue(com.android.internal.R.styleable.Window_windowFixedHeightMajor,
3176                    mFixedHeightMajor);
3177        }
3178        if (a.hasValue(com.android.internal.R.styleable.Window_windowFixedHeightMinor)) {
3179            if (mFixedHeightMinor == null) mFixedHeightMinor = new TypedValue();
3180            a.getValue(com.android.internal.R.styleable.Window_windowFixedHeightMinor,
3181                    mFixedHeightMinor);
3182        }
3183        if (a.getBoolean(com.android.internal.R.styleable.Window_windowContentTransitions, false)) {
3184            requestFeature(FEATURE_CONTENT_TRANSITIONS);
3185        }
3186
3187        final WindowManager windowService = (WindowManager) getContext().getSystemService(
3188                Context.WINDOW_SERVICE);
3189        if (windowService != null) {
3190            final Display display = windowService.getDefaultDisplay();
3191            if (display.getDisplayId() == Display.DEFAULT_DISPLAY &&
3192                    a.hasValue(com.android.internal.R.styleable.Window_windowOutsetBottom)) {
3193                if (mOutsetBottom == null) mOutsetBottom = new TypedValue();
3194                a.getValue(com.android.internal.R.styleable.Window_windowOutsetBottom,
3195                        mOutsetBottom);
3196            }
3197        }
3198
3199        final Context context = getContext();
3200        final int targetSdk = context.getApplicationInfo().targetSdkVersion;
3201        final boolean targetPreHoneycomb = targetSdk < android.os.Build.VERSION_CODES.HONEYCOMB;
3202        final boolean targetPreIcs = targetSdk < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH;
3203        final boolean targetPreL = targetSdk < android.os.Build.VERSION_CODES.L;
3204        final boolean targetHcNeedsOptions = context.getResources().getBoolean(
3205                com.android.internal.R.bool.target_honeycomb_needs_options_menu);
3206        final boolean noActionBar = !hasFeature(FEATURE_ACTION_BAR) || hasFeature(FEATURE_NO_TITLE);
3207
3208        if (targetPreHoneycomb || (targetPreIcs && targetHcNeedsOptions && noActionBar)) {
3209            addFlags(WindowManager.LayoutParams.FLAG_NEEDS_MENU_KEY);
3210        } else {
3211            clearFlags(WindowManager.LayoutParams.FLAG_NEEDS_MENU_KEY);
3212        }
3213
3214        // Non-floating windows on high end devices must put up decor beneath the system bars and
3215        // therefore must know about visibility changes of those.
3216        if (!mIsFloating && ActivityManager.isHighEndGfx()) {
3217            if (!targetPreL && a.getBoolean(
3218                    com.android.internal.R.styleable.Window_windowDrawsSystemBarBackgrounds,
3219                    false)) {
3220                setFlags(FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS,
3221                        FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS & ~getForcedWindowFlags());
3222            }
3223            decor.setOnSystemUiVisibilityChangeListener(decor);
3224        }
3225        if (!mForcedStatusBarColor) {
3226            mStatusBarColor = a.getColor(R.styleable.Window_statusBarColor, 0xFF000000);
3227        }
3228        if (!mForcedNavigationBarColor) {
3229            mNavigationBarColor = a.getColor(R.styleable.Window_navigationBarColor, 0xFF000000);
3230        }
3231
3232        if (mAlwaysReadCloseOnTouchAttr || getContext().getApplicationInfo().targetSdkVersion
3233                >= android.os.Build.VERSION_CODES.HONEYCOMB) {
3234            if (a.getBoolean(
3235                    com.android.internal.R.styleable.Window_windowCloseOnTouchOutside,
3236                    false)) {
3237                setCloseOnTouchOutsideIfNotSet(true);
3238            }
3239        }
3240
3241        WindowManager.LayoutParams params = getAttributes();
3242
3243        if (!hasSoftInputMode()) {
3244            params.softInputMode = a.getInt(
3245                    com.android.internal.R.styleable.Window_windowSoftInputMode,
3246                    params.softInputMode);
3247        }
3248
3249        if (a.getBoolean(com.android.internal.R.styleable.Window_backgroundDimEnabled,
3250                mIsFloating)) {
3251            /* All dialogs should have the window dimmed */
3252            if ((getForcedWindowFlags()&WindowManager.LayoutParams.FLAG_DIM_BEHIND) == 0) {
3253                params.flags |= WindowManager.LayoutParams.FLAG_DIM_BEHIND;
3254            }
3255            if (!haveDimAmount()) {
3256                params.dimAmount = a.getFloat(
3257                        android.R.styleable.Window_backgroundDimAmount, 0.5f);
3258            }
3259        }
3260
3261        if (params.windowAnimations == 0) {
3262            params.windowAnimations = a.getResourceId(
3263                    com.android.internal.R.styleable.Window_windowAnimationStyle, 0);
3264        }
3265
3266        // The rest are only done if this window is not embedded; otherwise,
3267        // the values are inherited from our container.
3268        if (getContainer() == null) {
3269            if (mBackgroundDrawable == null) {
3270                if (mBackgroundResource == 0) {
3271                    mBackgroundResource = a.getResourceId(
3272                            com.android.internal.R.styleable.Window_windowBackground, 0);
3273                }
3274                if (mFrameResource == 0) {
3275                    mFrameResource = a.getResourceId(com.android.internal.R.styleable.Window_windowFrame, 0);
3276                }
3277                if (false) {
3278                    System.out.println("Background: "
3279                            + Integer.toHexString(mBackgroundResource) + " Frame: "
3280                            + Integer.toHexString(mFrameResource));
3281                }
3282            }
3283            mElevation = a.getDimension(com.android.internal.R.styleable.Window_windowElevation, 0);
3284            mTextColor = a.getColor(com.android.internal.R.styleable.Window_textColor, 0xFF000000);
3285        }
3286
3287        // Inflate the window decor.
3288
3289        int layoutResource;
3290        int features = getLocalFeatures();
3291        // System.out.println("Features: 0x" + Integer.toHexString(features));
3292        if ((features & (1 << FEATURE_SWIPE_TO_DISMISS)) != 0) {
3293            layoutResource = com.android.internal.R.layout.screen_swipe_dismiss;
3294        } else if ((features & ((1 << FEATURE_LEFT_ICON) | (1 << FEATURE_RIGHT_ICON))) != 0) {
3295            if (mIsFloating) {
3296                TypedValue res = new TypedValue();
3297                getContext().getTheme().resolveAttribute(
3298                        com.android.internal.R.attr.dialogTitleIconsDecorLayout, res, true);
3299                layoutResource = res.resourceId;
3300            } else {
3301                layoutResource = com.android.internal.R.layout.screen_title_icons;
3302            }
3303            // XXX Remove this once action bar supports these features.
3304            removeFeature(FEATURE_ACTION_BAR);
3305            // System.out.println("Title Icons!");
3306        } else if ((features & ((1 << FEATURE_PROGRESS) | (1 << FEATURE_INDETERMINATE_PROGRESS))) != 0
3307                && (features & (1 << FEATURE_ACTION_BAR)) == 0) {
3308            // Special case for a window with only a progress bar (and title).
3309            // XXX Need to have a no-title version of embedded windows.
3310            layoutResource = com.android.internal.R.layout.screen_progress;
3311            // System.out.println("Progress!");
3312        } else if ((features & (1 << FEATURE_CUSTOM_TITLE)) != 0) {
3313            // Special case for a window with a custom title.
3314            // If the window is floating, we need a dialog layout
3315            if (mIsFloating) {
3316                TypedValue res = new TypedValue();
3317                getContext().getTheme().resolveAttribute(
3318                        com.android.internal.R.attr.dialogCustomTitleDecorLayout, res, true);
3319                layoutResource = res.resourceId;
3320            } else {
3321                layoutResource = com.android.internal.R.layout.screen_custom_title;
3322            }
3323            // XXX Remove this once action bar supports these features.
3324            removeFeature(FEATURE_ACTION_BAR);
3325        } else if ((features & (1 << FEATURE_NO_TITLE)) == 0) {
3326            // If no other features and not embedded, only need a title.
3327            // If the window is floating, we need a dialog layout
3328            if (mIsFloating) {
3329                TypedValue res = new TypedValue();
3330                getContext().getTheme().resolveAttribute(
3331                        com.android.internal.R.attr.dialogTitleDecorLayout, res, true);
3332                layoutResource = res.resourceId;
3333            } else if ((features & (1 << FEATURE_ACTION_BAR)) != 0) {
3334                layoutResource = a.getResourceId(
3335                        com.android.internal.R.styleable.Window_windowActionBarFullscreenDecorLayout,
3336                        com.android.internal.R.layout.screen_action_bar);
3337            } else {
3338                layoutResource = com.android.internal.R.layout.screen_title;
3339            }
3340            // System.out.println("Title!");
3341        } else if ((features & (1 << FEATURE_ACTION_MODE_OVERLAY)) != 0) {
3342            layoutResource = com.android.internal.R.layout.screen_simple_overlay_action_mode;
3343        } else {
3344            // Embedded, so no decoration is needed.
3345            layoutResource = com.android.internal.R.layout.screen_simple;
3346            // System.out.println("Simple!");
3347        }
3348
3349        mDecor.startChanging();
3350
3351        View in = mLayoutInflater.inflate(layoutResource, null);
3352        decor.addView(in, new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));
3353
3354        ViewGroup contentParent = (ViewGroup)findViewById(ID_ANDROID_CONTENT);
3355        if (contentParent == null) {
3356            throw new RuntimeException("Window couldn't find content container view");
3357        }
3358
3359        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
3360            ProgressBar progress = getCircularProgressBar(false);
3361            if (progress != null) {
3362                progress.setIndeterminate(true);
3363            }
3364        }
3365
3366        if ((features & (1 << FEATURE_SWIPE_TO_DISMISS)) != 0) {
3367            registerSwipeCallbacks();
3368        }
3369
3370        // Remaining setup -- of background and title -- that only applies
3371        // to top-level windows.
3372        if (getContainer() == null) {
3373            final Drawable background;
3374            if (mBackgroundResource != 0) {
3375                background = getContext().getDrawable(mBackgroundResource);
3376            } else {
3377                background = mBackgroundDrawable;
3378            }
3379            mDecor.setWindowBackground(background);
3380
3381            final Drawable frame;
3382            if (mFrameResource != 0) {
3383                frame = getContext().getDrawable(mFrameResource);
3384            } else {
3385                frame = null;
3386            }
3387            mDecor.setWindowFrame(frame);
3388
3389            mDecor.setElevation(mElevation);
3390
3391            if (mTitle != null) {
3392                setTitle(mTitle);
3393            }
3394
3395            if (mTitleColor == 0) {
3396                mTitleColor = mTextColor;
3397            }
3398            setTitleColor(mTitleColor);
3399        }
3400
3401        mDecor.finishChanging();
3402
3403        return contentParent;
3404    }
3405
3406    /** @hide */
3407    public void alwaysReadCloseOnTouchAttr() {
3408        mAlwaysReadCloseOnTouchAttr = true;
3409    }
3410
3411    private void installDecor() {
3412        if (mDecor == null) {
3413            mDecor = generateDecor();
3414            mDecor.setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
3415            mDecor.setIsRootNamespace(true);
3416            if (!mInvalidatePanelMenuPosted && mInvalidatePanelMenuFeatures != 0) {
3417                mDecor.postOnAnimation(mInvalidatePanelMenuRunnable);
3418            }
3419        }
3420        if (mContentParent == null) {
3421            mContentParent = generateLayout(mDecor);
3422
3423            // Set up decor part of UI to ignore fitsSystemWindows if appropriate.
3424            mDecor.makeOptionalFitsSystemWindows();
3425
3426            final DecorContentParent decorContentParent = (DecorContentParent) mDecor.findViewById(
3427                    com.android.internal.R.id.decor_content_parent);
3428
3429            if (decorContentParent != null) {
3430                mDecorContentParent = decorContentParent;
3431                mDecorContentParent.setWindowCallback(getCallback());
3432                if (mDecorContentParent.getTitle() == null) {
3433                    mDecorContentParent.setWindowTitle(mTitle);
3434                }
3435
3436                final int localFeatures = getLocalFeatures();
3437                for (int i = 0; i < FEATURE_MAX; i++) {
3438                    if ((localFeatures & (1 << i)) != 0) {
3439                        mDecorContentParent.initFeature(i);
3440                    }
3441                }
3442
3443                mDecorContentParent.setUiOptions(mUiOptions);
3444
3445                if ((mResourcesSetFlags & FLAG_RESOURCE_SET_ICON) != 0 ||
3446                        (mIconRes != 0 && !mDecorContentParent.hasIcon())) {
3447                    mDecorContentParent.setIcon(mIconRes);
3448                } else if ((mResourcesSetFlags & FLAG_RESOURCE_SET_ICON) == 0 &&
3449                        mIconRes == 0 && !mDecorContentParent.hasIcon()) {
3450                    mDecorContentParent.setIcon(
3451                            getContext().getPackageManager().getDefaultActivityIcon());
3452                    mResourcesSetFlags |= FLAG_RESOURCE_SET_ICON_FALLBACK;
3453                }
3454                if ((mResourcesSetFlags & FLAG_RESOURCE_SET_LOGO) != 0 ||
3455                        (mLogoRes != 0 && !mDecorContentParent.hasLogo())) {
3456                    mDecorContentParent.setLogo(mLogoRes);
3457                }
3458
3459                // Post the panel invalidate for later; avoid application onCreateOptionsMenu
3460                // being called in the middle of onCreate or similar.
3461                mDecor.post(new Runnable() {
3462                    public void run() {
3463                        // Invalidate if the panel menu hasn't been created before this.
3464                        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
3465                        if (!isDestroyed() && (st == null || st.menu == null)) {
3466                            invalidatePanelMenu(FEATURE_ACTION_BAR);
3467                        }
3468                    }
3469                });
3470            } else {
3471                mTitleView = (TextView)findViewById(com.android.internal.R.id.title);
3472                if (mTitleView != null) {
3473                    mTitleView.setLayoutDirection(mDecor.getLayoutDirection());
3474                    if ((getLocalFeatures() & (1 << FEATURE_NO_TITLE)) != 0) {
3475                        View titleContainer = findViewById(
3476                                com.android.internal.R.id.title_container);
3477                        if (titleContainer != null) {
3478                            titleContainer.setVisibility(View.GONE);
3479                        } else {
3480                            mTitleView.setVisibility(View.GONE);
3481                        }
3482                        if (mContentParent instanceof FrameLayout) {
3483                            ((FrameLayout)mContentParent).setForeground(null);
3484                        }
3485                    } else {
3486                        mTitleView.setText(mTitle);
3487                    }
3488                }
3489            }
3490
3491            // Only inflate or create a new TransitionManager if the caller hasn't
3492            // already set a custom one.
3493            if (hasFeature(FEATURE_CONTENT_TRANSITIONS)) {
3494                if (mTransitionManager == null) {
3495                    final int transitionRes = getWindowStyle().getResourceId(
3496                            com.android.internal.R.styleable.Window_windowContentTransitionManager,
3497                            0);
3498                    if (transitionRes != 0) {
3499                        final TransitionInflater inflater = TransitionInflater.from(getContext());
3500                        mTransitionManager = inflater.inflateTransitionManager(transitionRes,
3501                                mContentParent);
3502                    } else {
3503                        mTransitionManager = new TransitionManager();
3504                    }
3505                }
3506
3507                mEnterTransition = getTransition(mEnterTransition,
3508                        com.android.internal.R.styleable.Window_windowEnterTransition);
3509                mExitTransition = getTransition(mExitTransition,
3510                        com.android.internal.R.styleable.Window_windowExitTransition);
3511                mSharedElementEnterTransition = getTransition(mSharedElementEnterTransition,
3512                        com.android.internal.R.styleable.Window_windowSharedElementEnterTransition);
3513                mSharedElementExitTransition = getTransition(mSharedElementExitTransition,
3514                        com.android.internal.R.styleable.Window_windowSharedElementExitTransition);
3515                if (mAllowEnterTransitionOverlap == null) {
3516                    mAllowEnterTransitionOverlap = getWindowStyle().getBoolean(
3517                            com.android.internal.R.styleable.
3518                                    Window_windowAllowEnterTransitionOverlap, true);
3519                }
3520                if (mAllowExitTransitionOverlap == null) {
3521                    mAllowExitTransitionOverlap = getWindowStyle().getBoolean(
3522                            com.android.internal.R.styleable.
3523                                    Window_windowAllowExitTransitionOverlap, true);
3524                }
3525                if (mBackgroundFadeDurationMillis < 0) {
3526                    mBackgroundFadeDurationMillis = getWindowStyle().getInteger(
3527                            com.android.internal.R.styleable.
3528                                    Window_windowTransitionBackgroundFadeDuration,
3529                            DEFAULT_BACKGROUND_FADE_DURATION_MS);
3530                }
3531            }
3532        }
3533    }
3534
3535    private Transition getTransition(Transition currentValue, int id) {
3536        if (currentValue != null) {
3537            return currentValue;
3538        }
3539        int transitionId = getWindowStyle().getResourceId(id, -1);
3540        Transition transition = null;
3541        if (transitionId != -1 && transitionId != com.android.internal.R.transition.no_transition) {
3542            TransitionInflater inflater = TransitionInflater.from(getContext());
3543            transition = inflater.inflateTransition(transitionId);
3544        }
3545        return transition;
3546    }
3547
3548    private Drawable loadImageURI(Uri uri) {
3549        try {
3550            return Drawable.createFromStream(
3551                    getContext().getContentResolver().openInputStream(uri), null);
3552        } catch (Exception e) {
3553            Log.w(TAG, "Unable to open content: " + uri);
3554        }
3555        return null;
3556    }
3557
3558    private DrawableFeatureState getDrawableState(int featureId, boolean required) {
3559        if ((getFeatures() & (1 << featureId)) == 0) {
3560            if (!required) {
3561                return null;
3562            }
3563            throw new RuntimeException("The feature has not been requested");
3564        }
3565
3566        DrawableFeatureState[] ar;
3567        if ((ar = mDrawables) == null || ar.length <= featureId) {
3568            DrawableFeatureState[] nar = new DrawableFeatureState[featureId + 1];
3569            if (ar != null) {
3570                System.arraycopy(ar, 0, nar, 0, ar.length);
3571            }
3572            mDrawables = ar = nar;
3573        }
3574
3575        DrawableFeatureState st = ar[featureId];
3576        if (st == null) {
3577            ar[featureId] = st = new DrawableFeatureState(featureId);
3578        }
3579        return st;
3580    }
3581
3582    /**
3583     * Gets a panel's state based on its feature ID.
3584     *
3585     * @param featureId The feature ID of the panel.
3586     * @param required Whether the panel is required (if it is required and it
3587     *            isn't in our features, this throws an exception).
3588     * @return The panel state.
3589     */
3590    private PanelFeatureState getPanelState(int featureId, boolean required) {
3591        return getPanelState(featureId, required, null);
3592    }
3593
3594    /**
3595     * Gets a panel's state based on its feature ID.
3596     *
3597     * @param featureId The feature ID of the panel.
3598     * @param required Whether the panel is required (if it is required and it
3599     *            isn't in our features, this throws an exception).
3600     * @param convertPanelState Optional: If the panel state does not exist, use
3601     *            this as the panel state.
3602     * @return The panel state.
3603     */
3604    private PanelFeatureState getPanelState(int featureId, boolean required,
3605            PanelFeatureState convertPanelState) {
3606        if ((getFeatures() & (1 << featureId)) == 0) {
3607            if (!required) {
3608                return null;
3609            }
3610            throw new RuntimeException("The feature has not been requested");
3611        }
3612
3613        PanelFeatureState[] ar;
3614        if ((ar = mPanels) == null || ar.length <= featureId) {
3615            PanelFeatureState[] nar = new PanelFeatureState[featureId + 1];
3616            if (ar != null) {
3617                System.arraycopy(ar, 0, nar, 0, ar.length);
3618            }
3619            mPanels = ar = nar;
3620        }
3621
3622        PanelFeatureState st = ar[featureId];
3623        if (st == null) {
3624            ar[featureId] = st = (convertPanelState != null)
3625                    ? convertPanelState
3626                    : new PanelFeatureState(featureId);
3627        }
3628        return st;
3629    }
3630
3631    @Override
3632    public final void setChildDrawable(int featureId, Drawable drawable) {
3633        DrawableFeatureState st = getDrawableState(featureId, true);
3634        st.child = drawable;
3635        updateDrawable(featureId, st, false);
3636    }
3637
3638    @Override
3639    public final void setChildInt(int featureId, int value) {
3640        updateInt(featureId, value, false);
3641    }
3642
3643    @Override
3644    public boolean isShortcutKey(int keyCode, KeyEvent event) {
3645        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
3646        return st.menu != null && st.menu.isShortcutKey(keyCode, event);
3647    }
3648
3649    private void updateDrawable(int featureId, DrawableFeatureState st, boolean fromResume) {
3650        // Do nothing if the decor is not yet installed... an update will
3651        // need to be forced when we eventually become active.
3652        if (mContentParent == null) {
3653            return;
3654        }
3655
3656        final int featureMask = 1 << featureId;
3657
3658        if ((getFeatures() & featureMask) == 0 && !fromResume) {
3659            return;
3660        }
3661
3662        Drawable drawable = null;
3663        if (st != null) {
3664            drawable = st.child;
3665            if (drawable == null)
3666                drawable = st.local;
3667            if (drawable == null)
3668                drawable = st.def;
3669        }
3670        if ((getLocalFeatures() & featureMask) == 0) {
3671            if (getContainer() != null) {
3672                if (isActive() || fromResume) {
3673                    getContainer().setChildDrawable(featureId, drawable);
3674                }
3675            }
3676        } else if (st != null && (st.cur != drawable || st.curAlpha != st.alpha)) {
3677            // System.out.println("Drawable changed: old=" + st.cur
3678            // + ", new=" + drawable);
3679            st.cur = drawable;
3680            st.curAlpha = st.alpha;
3681            onDrawableChanged(featureId, drawable, st.alpha);
3682        }
3683    }
3684
3685    private void updateInt(int featureId, int value, boolean fromResume) {
3686
3687        // Do nothing if the decor is not yet installed... an update will
3688        // need to be forced when we eventually become active.
3689        if (mContentParent == null) {
3690            return;
3691        }
3692
3693        final int featureMask = 1 << featureId;
3694
3695        if ((getFeatures() & featureMask) == 0 && !fromResume) {
3696            return;
3697        }
3698
3699        if ((getLocalFeatures() & featureMask) == 0) {
3700            if (getContainer() != null) {
3701                getContainer().setChildInt(featureId, value);
3702            }
3703        } else {
3704            onIntChanged(featureId, value);
3705        }
3706    }
3707
3708    private ImageView getLeftIconView() {
3709        if (mLeftIconView != null) {
3710            return mLeftIconView;
3711        }
3712        if (mContentParent == null) {
3713            installDecor();
3714        }
3715        return (mLeftIconView = (ImageView)findViewById(com.android.internal.R.id.left_icon));
3716    }
3717
3718    @Override
3719    protected void dispatchWindowAttributesChanged(WindowManager.LayoutParams attrs) {
3720        super.dispatchWindowAttributesChanged(attrs);
3721        if (mDecor != null) {
3722            mDecor.updateColorViews(null /* insets */);
3723        }
3724    }
3725
3726    private ProgressBar getCircularProgressBar(boolean shouldInstallDecor) {
3727        if (mCircularProgressBar != null) {
3728            return mCircularProgressBar;
3729        }
3730        if (mContentParent == null && shouldInstallDecor) {
3731            installDecor();
3732        }
3733        mCircularProgressBar = (ProgressBar) findViewById(com.android.internal.R.id.progress_circular);
3734        if (mCircularProgressBar != null) {
3735            mCircularProgressBar.setVisibility(View.INVISIBLE);
3736        }
3737        return mCircularProgressBar;
3738    }
3739
3740    private ProgressBar getHorizontalProgressBar(boolean shouldInstallDecor) {
3741        if (mHorizontalProgressBar != null) {
3742            return mHorizontalProgressBar;
3743        }
3744        if (mContentParent == null && shouldInstallDecor) {
3745            installDecor();
3746        }
3747        mHorizontalProgressBar = (ProgressBar) findViewById(com.android.internal.R.id.progress_horizontal);
3748        if (mHorizontalProgressBar != null) {
3749            mHorizontalProgressBar.setVisibility(View.INVISIBLE);
3750        }
3751        return mHorizontalProgressBar;
3752    }
3753
3754    private ImageView getRightIconView() {
3755        if (mRightIconView != null) {
3756            return mRightIconView;
3757        }
3758        if (mContentParent == null) {
3759            installDecor();
3760        }
3761        return (mRightIconView = (ImageView)findViewById(com.android.internal.R.id.right_icon));
3762    }
3763
3764    private void registerSwipeCallbacks() {
3765        SwipeDismissLayout swipeDismiss =
3766                (SwipeDismissLayout) findViewById(com.android.internal.R.id.content);
3767        swipeDismiss.setOnDismissedListener(new SwipeDismissLayout.OnDismissedListener() {
3768            @Override
3769            public void onDismissed(SwipeDismissLayout layout) {
3770                dispatchOnWindowDismissed();
3771            }
3772        });
3773        swipeDismiss.setOnSwipeProgressChangedListener(
3774                new SwipeDismissLayout.OnSwipeProgressChangedListener() {
3775                    private static final float ALPHA_DECREASE = 0.5f;
3776                    private boolean mIsTranslucent = false;
3777                    @Override
3778                    public void onSwipeProgressChanged(
3779                            SwipeDismissLayout layout, float progress, float translate) {
3780                        WindowManager.LayoutParams newParams = getAttributes();
3781                        newParams.x = (int) translate;
3782                        newParams.alpha = 1 - (progress * ALPHA_DECREASE);
3783                        setAttributes(newParams);
3784
3785                        int flags = 0;
3786                        if (newParams.x == 0) {
3787                            flags = FLAG_FULLSCREEN;
3788                        } else {
3789                            flags = FLAG_LAYOUT_NO_LIMITS;
3790                        }
3791                        setFlags(flags, FLAG_FULLSCREEN | FLAG_LAYOUT_NO_LIMITS);
3792                    }
3793
3794                    @Override
3795                    public void onSwipeCancelled(SwipeDismissLayout layout) {
3796                        WindowManager.LayoutParams newParams = getAttributes();
3797                        newParams.x = 0;
3798                        newParams.alpha = 1;
3799                        setAttributes(newParams);
3800                        setFlags(FLAG_FULLSCREEN, FLAG_FULLSCREEN | FLAG_LAYOUT_NO_LIMITS);
3801                    }
3802                });
3803    }
3804
3805    /**
3806     * Helper method for calling the {@link Callback#onPanelClosed(int, Menu)}
3807     * callback. This method will grab whatever extra state is needed for the
3808     * callback that isn't given in the parameters. If the panel is not open,
3809     * this will not perform the callback.
3810     *
3811     * @param featureId Feature ID of the panel that was closed. Must be given.
3812     * @param panel Panel that was closed. Optional but useful if there is no
3813     *            menu given.
3814     * @param menu The menu that was closed. Optional, but give if you have.
3815     */
3816    private void callOnPanelClosed(int featureId, PanelFeatureState panel, Menu menu) {
3817        final Callback cb = getCallback();
3818        if (cb == null)
3819            return;
3820
3821        // Try to get a menu
3822        if (menu == null) {
3823            // Need a panel to grab the menu, so try to get that
3824            if (panel == null) {
3825                if ((featureId >= 0) && (featureId < mPanels.length)) {
3826                    panel = mPanels[featureId];
3827                }
3828            }
3829
3830            if (panel != null) {
3831                // menu still may be null, which is okay--we tried our best
3832                menu = panel.menu;
3833            }
3834        }
3835
3836        // If the panel is not open, do not callback
3837        if ((panel != null) && (!panel.isOpen))
3838            return;
3839
3840        if (!isDestroyed()) {
3841            cb.onPanelClosed(featureId, menu);
3842        }
3843    }
3844
3845    /**
3846     * Helper method for adding launch-search to most applications. Opens the
3847     * search window using default settings.
3848     *
3849     * @return true if search window opened
3850     */
3851    private boolean launchDefaultSearch() {
3852        final Callback cb = getCallback();
3853        if (cb == null || isDestroyed()) {
3854            return false;
3855        } else {
3856            sendCloseSystemWindows("search");
3857            return cb.onSearchRequested();
3858        }
3859    }
3860
3861    @Override
3862    public void setVolumeControlStream(int streamType) {
3863        mVolumeControlStreamType = streamType;
3864    }
3865
3866    @Override
3867    public int getVolumeControlStream() {
3868        return mVolumeControlStreamType;
3869    }
3870
3871    @Override
3872    public void setMediaController(MediaController controller) {
3873        mMediaController = controller;
3874    }
3875
3876    @Override
3877    public MediaController getMediaController() {
3878        return mMediaController;
3879    }
3880
3881    private boolean isTranslucent() {
3882        TypedArray a = getWindowStyle();
3883        return a.getBoolean(a.getResourceId(
3884                com.android.internal.R.styleable.Window_windowIsTranslucent, 0), false);
3885    }
3886
3887    @Override
3888    public void setEnterTransition(Transition enterTransition) {
3889        mEnterTransition = enterTransition;
3890    }
3891
3892    @Override
3893    public void setExitTransition(Transition exitTransition) {
3894        mExitTransition = exitTransition;
3895    }
3896
3897    @Override
3898    public void setSharedElementEnterTransition(Transition sharedElementEnterTransition) {
3899        mSharedElementEnterTransition = sharedElementEnterTransition;
3900    }
3901
3902    @Override
3903    public void setSharedElementExitTransition(Transition sharedElementExitTransition) {
3904        mSharedElementExitTransition = sharedElementExitTransition;
3905    }
3906
3907    @Override
3908    public Transition getEnterTransition() {
3909        return mEnterTransition;
3910    }
3911
3912    @Override
3913    public Transition getExitTransition() {
3914        return mExitTransition;
3915    }
3916
3917    @Override
3918    public Transition getSharedElementEnterTransition() {
3919        return mSharedElementEnterTransition;
3920    }
3921
3922    @Override
3923    public Transition getSharedElementExitTransition() {
3924        return mSharedElementExitTransition;
3925    }
3926
3927    @Override
3928    public void setAllowEnterTransitionOverlap(boolean allow) {
3929        mAllowEnterTransitionOverlap = allow;
3930    }
3931
3932    @Override
3933    public boolean getAllowEnterTransitionOverlap() {
3934        return (mAllowEnterTransitionOverlap == null) ? true : mAllowEnterTransitionOverlap;
3935    }
3936
3937    @Override
3938    public void setAllowExitTransitionOverlap(boolean allowExitTransitionOverlap) {
3939        mAllowExitTransitionOverlap = allowExitTransitionOverlap;
3940    }
3941
3942    @Override
3943    public boolean getAllowExitTransitionOverlap() {
3944        return (mAllowExitTransitionOverlap == null) ? true : mAllowExitTransitionOverlap;
3945    }
3946
3947    @Override
3948    public long getTransitionBackgroundFadeDuration() {
3949        return (mBackgroundFadeDurationMillis < 0) ? DEFAULT_BACKGROUND_FADE_DURATION_MS
3950                : mBackgroundFadeDurationMillis;
3951    }
3952
3953    @Override
3954    public void setTransitionBackgroundFadeDuration(long fadeDurationMillis) {
3955        if (fadeDurationMillis < 0) {
3956            throw new IllegalArgumentException("negative durations are not allowed");
3957        }
3958        mBackgroundFadeDurationMillis = fadeDurationMillis;
3959    }
3960
3961    private static final class DrawableFeatureState {
3962        DrawableFeatureState(int _featureId) {
3963            featureId = _featureId;
3964        }
3965
3966        final int featureId;
3967
3968        int resid;
3969
3970        Uri uri;
3971
3972        Drawable local;
3973
3974        Drawable child;
3975
3976        Drawable def;
3977
3978        Drawable cur;
3979
3980        int alpha = 255;
3981
3982        int curAlpha = 255;
3983    }
3984
3985    private static final class PanelFeatureState {
3986
3987        /** Feature ID for this panel. */
3988        int featureId;
3989
3990        // Information pulled from the style for this panel.
3991
3992        int background;
3993
3994        /** The background when the panel spans the entire available width. */
3995        int fullBackground;
3996
3997        int gravity;
3998
3999        int x;
4000
4001        int y;
4002
4003        int windowAnimations;
4004
4005        /** Dynamic state of the panel. */
4006        DecorView decorView;
4007
4008        /** The panel that was returned by onCreatePanelView(). */
4009        View createdPanelView;
4010
4011        /** The panel that we are actually showing. */
4012        View shownPanelView;
4013
4014        /** Use {@link #setMenu} to set this. */
4015        MenuBuilder menu;
4016
4017        IconMenuPresenter iconMenuPresenter;
4018        ListMenuPresenter listMenuPresenter;
4019
4020        /** true if this menu will show in single-list compact mode */
4021        boolean isCompact;
4022
4023        /** Theme resource ID for list elements of the panel menu */
4024        int listPresenterTheme;
4025
4026        /**
4027         * Whether the panel has been prepared (see
4028         * {@link PhoneWindow#preparePanel}).
4029         */
4030        boolean isPrepared;
4031
4032        /**
4033         * Whether an item's action has been performed. This happens in obvious
4034         * scenarios (user clicks on menu item), but can also happen with
4035         * chording menu+(shortcut key).
4036         */
4037        boolean isHandled;
4038
4039        boolean isOpen;
4040
4041        /**
4042         * True if the menu is in expanded mode, false if the menu is in icon
4043         * mode
4044         */
4045        boolean isInExpandedMode;
4046
4047        public boolean qwertyMode;
4048
4049        boolean refreshDecorView;
4050
4051        boolean refreshMenuContent;
4052
4053        boolean wasLastOpen;
4054
4055        boolean wasLastExpanded;
4056
4057        /**
4058         * Contains the state of the menu when told to freeze.
4059         */
4060        Bundle frozenMenuState;
4061
4062        /**
4063         * Contains the state of associated action views when told to freeze.
4064         * These are saved across invalidations.
4065         */
4066        Bundle frozenActionViewState;
4067
4068        PanelFeatureState(int featureId) {
4069            this.featureId = featureId;
4070
4071            refreshDecorView = false;
4072        }
4073
4074        public boolean isInListMode() {
4075            return isInExpandedMode || isCompact;
4076        }
4077
4078        public boolean hasPanelItems() {
4079            if (shownPanelView == null) return false;
4080            if (createdPanelView != null) return true;
4081
4082            if (isCompact || isInExpandedMode) {
4083                return listMenuPresenter.getAdapter().getCount() > 0;
4084            } else {
4085                return ((ViewGroup) shownPanelView).getChildCount() > 0;
4086            }
4087        }
4088
4089        /**
4090         * Unregister and free attached MenuPresenters. They will be recreated as needed.
4091         */
4092        public void clearMenuPresenters() {
4093            if (menu != null) {
4094                menu.removeMenuPresenter(iconMenuPresenter);
4095                menu.removeMenuPresenter(listMenuPresenter);
4096            }
4097            iconMenuPresenter = null;
4098            listMenuPresenter = null;
4099        }
4100
4101        void setStyle(Context context) {
4102            TypedArray a = context.obtainStyledAttributes(com.android.internal.R.styleable.Theme);
4103            background = a.getResourceId(
4104                    com.android.internal.R.styleable.Theme_panelBackground, 0);
4105            fullBackground = a.getResourceId(
4106                    com.android.internal.R.styleable.Theme_panelFullBackground, 0);
4107            windowAnimations = a.getResourceId(
4108                    com.android.internal.R.styleable.Theme_windowAnimationStyle, 0);
4109            isCompact = a.getBoolean(
4110                    com.android.internal.R.styleable.Theme_panelMenuIsCompact, false);
4111            listPresenterTheme = a.getResourceId(
4112                    com.android.internal.R.styleable.Theme_panelMenuListTheme,
4113                    com.android.internal.R.style.Theme_ExpandedMenu);
4114            a.recycle();
4115        }
4116
4117        void setMenu(MenuBuilder menu) {
4118            if (menu == this.menu) return;
4119
4120            if (this.menu != null) {
4121                this.menu.removeMenuPresenter(iconMenuPresenter);
4122                this.menu.removeMenuPresenter(listMenuPresenter);
4123            }
4124            this.menu = menu;
4125            if (menu != null) {
4126                if (iconMenuPresenter != null) menu.addMenuPresenter(iconMenuPresenter);
4127                if (listMenuPresenter != null) menu.addMenuPresenter(listMenuPresenter);
4128            }
4129        }
4130
4131        MenuView getListMenuView(Context context, MenuPresenter.Callback cb) {
4132            if (menu == null) return null;
4133
4134            if (!isCompact) {
4135                getIconMenuView(context, cb); // Need this initialized to know where our offset goes
4136            }
4137
4138            if (listMenuPresenter == null) {
4139                listMenuPresenter = new ListMenuPresenter(
4140                        com.android.internal.R.layout.list_menu_item_layout, listPresenterTheme);
4141                listMenuPresenter.setCallback(cb);
4142                listMenuPresenter.setId(com.android.internal.R.id.list_menu_presenter);
4143                menu.addMenuPresenter(listMenuPresenter);
4144            }
4145
4146            if (iconMenuPresenter != null) {
4147                listMenuPresenter.setItemIndexOffset(
4148                        iconMenuPresenter.getNumActualItemsShown());
4149            }
4150            MenuView result = listMenuPresenter.getMenuView(decorView);
4151
4152            return result;
4153        }
4154
4155        MenuView getIconMenuView(Context context, MenuPresenter.Callback cb) {
4156            if (menu == null) return null;
4157
4158            if (iconMenuPresenter == null) {
4159                iconMenuPresenter = new IconMenuPresenter(context);
4160                iconMenuPresenter.setCallback(cb);
4161                iconMenuPresenter.setId(com.android.internal.R.id.icon_menu_presenter);
4162                menu.addMenuPresenter(iconMenuPresenter);
4163            }
4164
4165            MenuView result = iconMenuPresenter.getMenuView(decorView);
4166
4167            return result;
4168        }
4169
4170        Parcelable onSaveInstanceState() {
4171            SavedState savedState = new SavedState();
4172            savedState.featureId = featureId;
4173            savedState.isOpen = isOpen;
4174            savedState.isInExpandedMode = isInExpandedMode;
4175
4176            if (menu != null) {
4177                savedState.menuState = new Bundle();
4178                menu.savePresenterStates(savedState.menuState);
4179            }
4180
4181            return savedState;
4182        }
4183
4184        void onRestoreInstanceState(Parcelable state) {
4185            SavedState savedState = (SavedState) state;
4186            featureId = savedState.featureId;
4187            wasLastOpen = savedState.isOpen;
4188            wasLastExpanded = savedState.isInExpandedMode;
4189            frozenMenuState = savedState.menuState;
4190
4191            /*
4192             * A LocalActivityManager keeps the same instance of this class around.
4193             * The first time the menu is being shown after restoring, the
4194             * Activity.onCreateOptionsMenu should be called. But, if it is the
4195             * same instance then menu != null and we won't call that method.
4196             * We clear any cached views here. The caller should invalidatePanelMenu.
4197             */
4198            createdPanelView = null;
4199            shownPanelView = null;
4200            decorView = null;
4201        }
4202
4203        void applyFrozenState() {
4204            if (menu != null && frozenMenuState != null) {
4205                menu.restorePresenterStates(frozenMenuState);
4206                frozenMenuState = null;
4207            }
4208        }
4209
4210        private static class SavedState implements Parcelable {
4211            int featureId;
4212            boolean isOpen;
4213            boolean isInExpandedMode;
4214            Bundle menuState;
4215
4216            public int describeContents() {
4217                return 0;
4218            }
4219
4220            public void writeToParcel(Parcel dest, int flags) {
4221                dest.writeInt(featureId);
4222                dest.writeInt(isOpen ? 1 : 0);
4223                dest.writeInt(isInExpandedMode ? 1 : 0);
4224
4225                if (isOpen) {
4226                    dest.writeBundle(menuState);
4227                }
4228            }
4229
4230            private static SavedState readFromParcel(Parcel source) {
4231                SavedState savedState = new SavedState();
4232                savedState.featureId = source.readInt();
4233                savedState.isOpen = source.readInt() == 1;
4234                savedState.isInExpandedMode = source.readInt() == 1;
4235
4236                if (savedState.isOpen) {
4237                    savedState.menuState = source.readBundle();
4238                }
4239
4240                return savedState;
4241            }
4242
4243            public static final Parcelable.Creator<SavedState> CREATOR
4244                    = new Parcelable.Creator<SavedState>() {
4245                public SavedState createFromParcel(Parcel in) {
4246                    return readFromParcel(in);
4247                }
4248
4249                public SavedState[] newArray(int size) {
4250                    return new SavedState[size];
4251                }
4252            };
4253        }
4254
4255    }
4256
4257    static class RotationWatcher extends IRotationWatcher.Stub {
4258        private Handler mHandler;
4259        private final Runnable mRotationChanged = new Runnable() {
4260            public void run() {
4261                dispatchRotationChanged();
4262            }
4263        };
4264        private final ArrayList<WeakReference<PhoneWindow>> mWindows =
4265                new ArrayList<WeakReference<PhoneWindow>>();
4266        private boolean mIsWatching;
4267
4268        @Override
4269        public void onRotationChanged(int rotation) throws RemoteException {
4270            mHandler.post(mRotationChanged);
4271        }
4272
4273        public void addWindow(PhoneWindow phoneWindow) {
4274            synchronized (mWindows) {
4275                if (!mIsWatching) {
4276                    try {
4277                        WindowManagerHolder.sWindowManager.watchRotation(this);
4278                        mHandler = new Handler();
4279                        mIsWatching = true;
4280                    } catch (RemoteException ex) {
4281                        Log.e(TAG, "Couldn't start watching for device rotation", ex);
4282                    }
4283                }
4284                mWindows.add(new WeakReference<PhoneWindow>(phoneWindow));
4285            }
4286        }
4287
4288        public void removeWindow(PhoneWindow phoneWindow) {
4289            synchronized (mWindows) {
4290                int i = 0;
4291                while (i < mWindows.size()) {
4292                    final WeakReference<PhoneWindow> ref = mWindows.get(i);
4293                    final PhoneWindow win = ref.get();
4294                    if (win == null || win == phoneWindow) {
4295                        mWindows.remove(i);
4296                    } else {
4297                        i++;
4298                    }
4299                }
4300            }
4301        }
4302
4303        void dispatchRotationChanged() {
4304            synchronized (mWindows) {
4305                int i = 0;
4306                while (i < mWindows.size()) {
4307                    final WeakReference<PhoneWindow> ref = mWindows.get(i);
4308                    final PhoneWindow win = ref.get();
4309                    if (win != null) {
4310                        win.onOptionsPanelRotationChanged();
4311                        i++;
4312                    } else {
4313                        mWindows.remove(i);
4314                    }
4315                }
4316            }
4317        }
4318    }
4319
4320    /**
4321     * Simple implementation of MenuBuilder.Callback that:
4322     * <li> Opens a submenu when selected.
4323     * <li> Calls back to the callback's onMenuItemSelected when an item is
4324     * selected.
4325     */
4326    private final class DialogMenuCallback implements MenuBuilder.Callback, MenuPresenter.Callback {
4327        private int mFeatureId;
4328        private MenuDialogHelper mSubMenuHelper;
4329
4330        public DialogMenuCallback(int featureId) {
4331            mFeatureId = featureId;
4332        }
4333
4334        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
4335            if (menu.getRootMenu() != menu) {
4336                onCloseSubMenu(menu);
4337            }
4338
4339            if (allMenusAreClosing) {
4340                Callback callback = getCallback();
4341                if (callback != null && !isDestroyed()) {
4342                    callback.onPanelClosed(mFeatureId, menu);
4343                }
4344
4345                if (menu == mContextMenu) {
4346                    dismissContextMenu();
4347                }
4348
4349                // Dismiss the submenu, if it is showing
4350                if (mSubMenuHelper != null) {
4351                    mSubMenuHelper.dismiss();
4352                    mSubMenuHelper = null;
4353                }
4354            }
4355        }
4356
4357        public void onCloseSubMenu(MenuBuilder menu) {
4358            Callback callback = getCallback();
4359            if (callback != null && !isDestroyed()) {
4360                callback.onPanelClosed(mFeatureId, menu.getRootMenu());
4361            }
4362        }
4363
4364        public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
4365            Callback callback = getCallback();
4366            return (callback != null && !isDestroyed())
4367                    && callback.onMenuItemSelected(mFeatureId, item);
4368        }
4369
4370        public void onMenuModeChange(MenuBuilder menu) {
4371        }
4372
4373        public boolean onOpenSubMenu(MenuBuilder subMenu) {
4374            if (subMenu == null) return false;
4375
4376            // Set a simple callback for the submenu
4377            subMenu.setCallback(this);
4378
4379            // The window manager will give us a valid window token
4380            mSubMenuHelper = new MenuDialogHelper(subMenu);
4381            mSubMenuHelper.show(null);
4382
4383            return true;
4384        }
4385    }
4386
4387    void sendCloseSystemWindows() {
4388        PhoneWindowManager.sendCloseSystemWindows(getContext(), null);
4389    }
4390
4391    void sendCloseSystemWindows(String reason) {
4392        PhoneWindowManager.sendCloseSystemWindows(getContext(), reason);
4393    }
4394
4395    @Override
4396    public int getStatusBarColor() {
4397        return mStatusBarColor;
4398    }
4399
4400    @Override
4401    public void setStatusBarColor(int color) {
4402        mStatusBarColor = color;
4403        mForcedStatusBarColor = true;
4404        if (mDecor != null) {
4405            mDecor.updateColorViews(null);
4406        }
4407    }
4408
4409    @Override
4410    public int getNavigationBarColor() {
4411        return mNavigationBarColor;
4412    }
4413
4414    @Override
4415    public void setNavigationBarColor(int color) {
4416        mNavigationBarColor = color;
4417        mForcedNavigationBarColor = true;
4418        if (mDecor != null) {
4419            mDecor.updateColorViews(null);
4420        }
4421    }
4422}
4423