PhoneWindow.java revision 554bb0194f1f4fcc91834eaaf2efb300cf32f693
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.FLAG_FULLSCREEN;
24import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR;
25import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
26import static android.view.WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER;
27import static android.view.WindowManager.LayoutParams.FLAG_SPLIT_TOUCH;
28
29import com.android.internal.view.RootViewSurfaceTaker;
30import com.android.internal.view.StandaloneActionMode;
31import com.android.internal.view.menu.ContextMenuBuilder;
32import com.android.internal.view.menu.IconMenuPresenter;
33import com.android.internal.view.menu.ListMenuPresenter;
34import com.android.internal.view.menu.MenuBuilder;
35import com.android.internal.view.menu.MenuDialogHelper;
36import com.android.internal.view.menu.MenuPresenter;
37import com.android.internal.view.menu.MenuView;
38import com.android.internal.widget.ActionBarContainer;
39import com.android.internal.widget.ActionBarContextView;
40import com.android.internal.widget.ActionBarView;
41
42import android.app.KeyguardManager;
43import android.content.Context;
44import android.content.pm.ActivityInfo;
45import android.content.res.Configuration;
46import android.content.res.Resources;
47import android.content.res.TypedArray;
48import android.graphics.Canvas;
49import android.graphics.PixelFormat;
50import android.graphics.Rect;
51import android.graphics.drawable.Drawable;
52import android.media.AudioManager;
53import android.net.Uri;
54import android.os.Bundle;
55import android.os.Handler;
56import android.os.Parcel;
57import android.os.Parcelable;
58import android.os.RemoteException;
59import android.os.ServiceManager;
60import android.util.AndroidRuntimeException;
61import android.util.DisplayMetrics;
62import android.util.EventLog;
63import android.util.Log;
64import android.util.SparseArray;
65import android.util.TypedValue;
66import android.view.ActionMode;
67import android.view.ContextThemeWrapper;
68import android.view.Gravity;
69import android.view.IRotationWatcher;
70import android.view.IWindowManager;
71import android.view.InputQueue;
72import android.view.KeyCharacterMap;
73import android.view.KeyEvent;
74import android.view.LayoutInflater;
75import android.view.Menu;
76import android.view.MenuItem;
77import android.view.MotionEvent;
78import android.view.SurfaceHolder;
79import android.view.View;
80import android.view.ViewGroup;
81import android.view.ViewManager;
82import android.view.ViewStub;
83import android.view.Window;
84import android.view.WindowManager;
85import android.view.accessibility.AccessibilityEvent;
86import android.view.accessibility.AccessibilityManager;
87import android.view.animation.Animation;
88import android.view.animation.AnimationUtils;
89import android.widget.FrameLayout;
90import android.widget.ImageView;
91import android.widget.PopupWindow;
92import android.widget.ProgressBar;
93import android.widget.TextView;
94
95import java.lang.ref.WeakReference;
96import java.util.ArrayList;
97
98/**
99 * Android-specific Window.
100 * <p>
101 * todo: need to pull the generic functionality out into a base class
102 * in android.widget.
103 */
104public class PhoneWindow extends Window implements MenuBuilder.Callback {
105
106    private final static String TAG = "PhoneWindow";
107
108    private final static boolean SWEEP_OPEN_MENU = false;
109
110    /**
111     * Simple callback used by the context menu and its submenus. The options
112     * menu submenus do not use this (their behavior is more complex).
113     */
114    final DialogMenuCallback mContextMenuCallback = new DialogMenuCallback(FEATURE_CONTEXT_MENU);
115
116    final TypedValue mMinWidthMajor = new TypedValue();
117    final TypedValue mMinWidthMinor = new TypedValue();
118
119    // This is the top-level view of the window, containing the window decor.
120    private DecorView mDecor;
121
122    // This is the view in which the window contents are placed. It is either
123    // mDecor itself, or a child of mDecor where the contents go.
124    private ViewGroup mContentParent;
125
126    SurfaceHolder.Callback2 mTakeSurfaceCallback;
127
128    InputQueue.Callback mTakeInputQueueCallback;
129
130    private boolean mIsFloating;
131
132    private LayoutInflater mLayoutInflater;
133
134    private TextView mTitleView;
135
136    private ActionBarView mActionBar;
137    private ActionMenuPresenterCallback mActionMenuPresenterCallback;
138    private PanelMenuPresenterCallback mPanelMenuPresenterCallback;
139
140    private DrawableFeatureState[] mDrawables;
141
142    private PanelFeatureState[] mPanels;
143
144    /**
145     * The panel that is prepared or opened (the most recent one if there are
146     * multiple panels). Shortcuts will go to this panel. It gets set in
147     * {@link #preparePanel} and cleared in {@link #closePanel}.
148     */
149    private PanelFeatureState mPreparedPanel;
150
151    /**
152     * The keycode that is currently held down (as a modifier) for chording. If
153     * this is 0, there is no key held down.
154     */
155    private int mPanelChordingKey;
156
157    private ImageView mLeftIconView;
158
159    private ImageView mRightIconView;
160
161    private ProgressBar mCircularProgressBar;
162
163    private ProgressBar mHorizontalProgressBar;
164
165    private int mBackgroundResource = 0;
166
167    private Drawable mBackgroundDrawable;
168
169    private int mFrameResource = 0;
170
171    private int mTextColor = 0;
172
173    private CharSequence mTitle = null;
174
175    private int mTitleColor = 0;
176
177    private boolean mAlwaysReadCloseOnTouchAttr = false;
178
179    private ContextMenuBuilder mContextMenu;
180    private MenuDialogHelper mContextMenuHelper;
181    private boolean mClosingActionMenu;
182
183    private int mVolumeControlStreamType = AudioManager.USE_DEFAULT_STREAM_TYPE;
184
185    private AudioManager mAudioManager;
186    private KeyguardManager mKeyguardManager;
187
188    private int mUiOptions = 0;
189
190    static class WindowManagerHolder {
191        static final IWindowManager sWindowManager = IWindowManager.Stub.asInterface(
192                ServiceManager.getService("window"));
193    }
194
195    static final RotationWatcher sRotationWatcher = new RotationWatcher();
196
197    public PhoneWindow(Context context) {
198        super(context);
199        mLayoutInflater = LayoutInflater.from(context);
200    }
201
202    @Override
203    public final void setContainer(Window container) {
204        super.setContainer(container);
205    }
206
207    @Override
208    public boolean requestFeature(int featureId) {
209        if (mContentParent != null) {
210            throw new AndroidRuntimeException("requestFeature() must be called before adding content");
211        }
212        final int features = getFeatures();
213        if ((features != DEFAULT_FEATURES) && (featureId == FEATURE_CUSTOM_TITLE)) {
214
215            /* Another feature is enabled and the user is trying to enable the custom title feature */
216            throw new AndroidRuntimeException("You cannot combine custom titles with other title features");
217        }
218        if (((features & (1 << FEATURE_CUSTOM_TITLE)) != 0) &&
219                (featureId != FEATURE_CUSTOM_TITLE) && (featureId != FEATURE_ACTION_MODE_OVERLAY)) {
220
221            /* Custom title feature is enabled and the user is trying to enable another feature */
222            throw new AndroidRuntimeException("You cannot combine custom titles with other title features");
223        }
224        if ((features & (1 << FEATURE_NO_TITLE)) != 0 && featureId == FEATURE_ACTION_BAR) {
225            return false; // Ignore. No title dominates.
226        }
227        if ((features & (1 << FEATURE_ACTION_BAR)) != 0 && featureId == FEATURE_NO_TITLE) {
228            // Remove the action bar feature if we have no title. No title dominates.
229            removeFeature(FEATURE_ACTION_BAR);
230        }
231        return super.requestFeature(featureId);
232    }
233
234    @Override
235    public void setUiOptions(int uiOptions) {
236        mUiOptions = uiOptions;
237    }
238
239    @Override
240    public void setUiOptions(int uiOptions, int mask) {
241        mUiOptions = (mUiOptions & ~mask) | (uiOptions & mask);
242    }
243
244    @Override
245    public void setContentView(int layoutResID) {
246        if (mContentParent == null) {
247            installDecor();
248        } else {
249            mContentParent.removeAllViews();
250        }
251        mLayoutInflater.inflate(layoutResID, mContentParent);
252        final Callback cb = getCallback();
253        if (cb != null && !isDestroyed()) {
254            cb.onContentChanged();
255        }
256    }
257
258    @Override
259    public void setContentView(View view) {
260        setContentView(view, new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));
261    }
262
263    @Override
264    public void setContentView(View view, ViewGroup.LayoutParams params) {
265        if (mContentParent == null) {
266            installDecor();
267        } else {
268            mContentParent.removeAllViews();
269        }
270        mContentParent.addView(view, params);
271        final Callback cb = getCallback();
272        if (cb != null && !isDestroyed()) {
273            cb.onContentChanged();
274        }
275    }
276
277    @Override
278    public void addContentView(View view, ViewGroup.LayoutParams params) {
279        if (mContentParent == null) {
280            installDecor();
281        }
282        mContentParent.addView(view, params);
283        final Callback cb = getCallback();
284        if (cb != null && !isDestroyed()) {
285            cb.onContentChanged();
286        }
287    }
288
289    @Override
290    public View getCurrentFocus() {
291        return mDecor != null ? mDecor.findFocus() : null;
292    }
293
294    @Override
295    public void takeSurface(SurfaceHolder.Callback2 callback) {
296        mTakeSurfaceCallback = callback;
297    }
298
299    public void takeInputQueue(InputQueue.Callback callback) {
300        mTakeInputQueueCallback = callback;
301    }
302
303    @Override
304    public boolean isFloating() {
305        return mIsFloating;
306    }
307
308    /**
309     * Return a LayoutInflater instance that can be used to inflate XML view layout
310     * resources for use in this Window.
311     *
312     * @return LayoutInflater The shared LayoutInflater.
313     */
314    @Override
315    public LayoutInflater getLayoutInflater() {
316        return mLayoutInflater;
317    }
318
319    @Override
320    public void setTitle(CharSequence title) {
321        if (mTitleView != null) {
322            mTitleView.setText(title);
323        } else if (mActionBar != null) {
324            mActionBar.setWindowTitle(title);
325        }
326        mTitle = title;
327    }
328
329    @Override
330    public void setTitleColor(int textColor) {
331        if (mTitleView != null) {
332            mTitleView.setTextColor(textColor);
333        }
334        mTitleColor = textColor;
335    }
336
337    /**
338     * Prepares the panel to either be opened or chorded. This creates the Menu
339     * instance for the panel and populates it via the Activity callbacks.
340     *
341     * @param st The panel state to prepare.
342     * @param event The event that triggered the preparing of the panel.
343     * @return Whether the panel was prepared. If the panel should not be shown,
344     *         returns false.
345     */
346    public final boolean preparePanel(PanelFeatureState st, KeyEvent event) {
347        if (isDestroyed()) {
348            return false;
349        }
350
351        // Already prepared (isPrepared will be reset to false later)
352        if (st.isPrepared) {
353            return true;
354        }
355
356        if ((mPreparedPanel != null) && (mPreparedPanel != st)) {
357            // Another Panel is prepared and possibly open, so close it
358            closePanel(mPreparedPanel, false);
359        }
360
361        final Callback cb = getCallback();
362
363        if (cb != null) {
364            st.createdPanelView = cb.onCreatePanelView(st.featureId);
365        }
366
367        if (st.createdPanelView == null) {
368            // Init the panel state's menu--return false if init failed
369            if (st.menu == null || st.refreshMenuContent) {
370                if (st.menu == null) {
371                    if (!initializePanelMenu(st) || (st.menu == null)) {
372                        return false;
373                    }
374                }
375
376                if (mActionBar != null) {
377                    if (mActionMenuPresenterCallback == null) {
378                        mActionMenuPresenterCallback = new ActionMenuPresenterCallback();
379                    }
380                    mActionBar.setMenu(st.menu, mActionMenuPresenterCallback);
381                }
382
383                // Call callback, and return if it doesn't want to display menu.
384
385                // Creating the panel menu will involve a lot of manipulation;
386                // don't dispatch change events to presenters until we're done.
387                st.menu.stopDispatchingItemsChanged();
388                if ((cb == null) || !cb.onCreatePanelMenu(st.featureId, st.menu)) {
389                    // Ditch the menu created above
390                    st.setMenu(null);
391
392                    if (mActionBar != null) {
393                        // Don't show it in the action bar either
394                        mActionBar.setMenu(null, mActionMenuPresenterCallback);
395                    }
396
397                    return false;
398                }
399
400                st.refreshMenuContent = false;
401            }
402
403            // Callback and return if the callback does not want to show the menu
404
405            // Preparing the panel menu can involve a lot of manipulation;
406            // don't dispatch change events to presenters until we're done.
407            st.menu.stopDispatchingItemsChanged();
408
409            // Restore action view state before we prepare. This gives apps
410            // an opportunity to override frozen/restored state in onPrepare.
411            if (st.frozenActionViewState != null) {
412                st.menu.restoreActionViewStates(st.frozenActionViewState);
413                st.frozenActionViewState = null;
414            }
415
416            if (!cb.onPreparePanel(st.featureId, st.createdPanelView, st.menu)) {
417                if (mActionBar != null) {
418                    // The app didn't want to show the menu for now but it still exists.
419                    // Clear it out of the action bar.
420                    mActionBar.setMenu(null, mActionMenuPresenterCallback);
421                }
422                st.menu.startDispatchingItemsChanged();
423                return false;
424            }
425
426            // Set the proper keymap
427            KeyCharacterMap kmap = KeyCharacterMap.load(
428                    event != null ? event.getDeviceId() : KeyCharacterMap.VIRTUAL_KEYBOARD);
429            st.qwertyMode = kmap.getKeyboardType() != KeyCharacterMap.NUMERIC;
430            st.menu.setQwertyMode(st.qwertyMode);
431            st.menu.startDispatchingItemsChanged();
432        }
433
434        // Set other state
435        st.isPrepared = true;
436        st.isHandled = false;
437        mPreparedPanel = st;
438
439        return true;
440    }
441
442    @Override
443    public void onConfigurationChanged(Configuration newConfig) {
444        // Action bars handle their own menu state
445        if (mActionBar == null) {
446            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
447            if ((st != null) && (st.menu != null)) {
448                if (st.isOpen) {
449                    // Freeze state
450                    final Bundle state = new Bundle();
451                    if (st.iconMenuPresenter != null) {
452                        st.iconMenuPresenter.saveHierarchyState(state);
453                    }
454                    if (st.listMenuPresenter != null) {
455                        st.listMenuPresenter.saveHierarchyState(state);
456                    }
457
458                    // Remove the menu views since they need to be recreated
459                    // according to the new configuration
460                    clearMenuViews(st);
461
462                    // Re-open the same menu
463                    reopenMenu(false);
464
465                    // Restore state
466                    if (st.iconMenuPresenter != null) {
467                        st.iconMenuPresenter.restoreHierarchyState(state);
468                    }
469                    if (st.listMenuPresenter != null) {
470                        st.listMenuPresenter.restoreHierarchyState(state);
471                    }
472
473                } else {
474                    // Clear menu views so on next menu opening, it will use
475                    // the proper layout
476                    clearMenuViews(st);
477                }
478            }
479        }
480    }
481
482    private static void clearMenuViews(PanelFeatureState st) {
483        // This can be called on config changes, so we should make sure
484        // the views will be reconstructed based on the new orientation, etc.
485
486        // Allow the callback to create a new panel view
487        st.createdPanelView = null;
488
489        // Causes the decor view to be recreated
490        st.refreshDecorView = true;
491
492        st.clearMenuPresenters();
493    }
494
495    @Override
496    public final void openPanel(int featureId, KeyEvent event) {
497        if (featureId == FEATURE_OPTIONS_PANEL && mActionBar != null &&
498                mActionBar.isOverflowReserved()) {
499            if (mActionBar.getVisibility() == View.VISIBLE) {
500                mActionBar.showOverflowMenu();
501            }
502        } else {
503            openPanel(getPanelState(featureId, true), event);
504        }
505    }
506
507    private void openPanel(PanelFeatureState st, KeyEvent event) {
508        // System.out.println("Open panel: isOpen=" + st.isOpen);
509
510        // Already open, return
511        if (st.isOpen || isDestroyed()) {
512            return;
513        }
514
515        // Don't open an options panel for honeycomb apps on xlarge devices.
516        // (The app should be using an action bar for menu items.)
517        if (st.featureId == FEATURE_OPTIONS_PANEL) {
518            Context context = getContext();
519            Configuration config = context.getResources().getConfiguration();
520            boolean isXLarge = (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) ==
521                    Configuration.SCREENLAYOUT_SIZE_XLARGE;
522            boolean isHoneycombApp = context.getApplicationInfo().targetSdkVersion >=
523                    android.os.Build.VERSION_CODES.HONEYCOMB;
524
525            if (isXLarge && isHoneycombApp) {
526                return;
527            }
528        }
529
530        Callback cb = getCallback();
531        if ((cb != null) && (!cb.onMenuOpened(st.featureId, st.menu))) {
532            // Callback doesn't want the menu to open, reset any state
533            closePanel(st, true);
534            return;
535        }
536
537        final WindowManager wm = getWindowManager();
538        if (wm == null) {
539            return;
540        }
541
542        // Prepare panel (should have been done before, but just in case)
543        if (!preparePanel(st, event)) {
544            return;
545        }
546
547        int width = WRAP_CONTENT;
548        if (st.decorView == null || st.refreshDecorView) {
549            if (st.decorView == null) {
550                // Initialize the panel decor, this will populate st.decorView
551                if (!initializePanelDecor(st) || (st.decorView == null))
552                    return;
553            } else if (st.refreshDecorView && (st.decorView.getChildCount() > 0)) {
554                // Decor needs refreshing, so remove its views
555                st.decorView.removeAllViews();
556            }
557
558            // This will populate st.shownPanelView
559            if (!initializePanelContent(st) || !st.hasPanelItems()) {
560                return;
561            }
562
563            ViewGroup.LayoutParams lp = st.shownPanelView.getLayoutParams();
564            if (lp == null) {
565                lp = new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
566            }
567
568            int backgroundResId;
569            if (lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
570                // If the contents is fill parent for the width, set the
571                // corresponding background
572                backgroundResId = st.fullBackground;
573                width = MATCH_PARENT;
574            } else {
575                // Otherwise, set the normal panel background
576                backgroundResId = st.background;
577            }
578            st.decorView.setWindowBackground(getContext().getResources().getDrawable(
579                    backgroundResId));
580
581
582            st.decorView.addView(st.shownPanelView, lp);
583
584            /*
585             * Give focus to the view, if it or one of its children does not
586             * already have it.
587             */
588            if (!st.shownPanelView.hasFocus()) {
589                st.shownPanelView.requestFocus();
590            }
591        } else if (!st.isInListMode()) {
592            width = MATCH_PARENT;
593        } else if (st.createdPanelView != null) {
594            // If we already had a panel view, carry width=MATCH_PARENT through
595            // as we did above when it was created.
596            ViewGroup.LayoutParams lp = st.createdPanelView.getLayoutParams();
597            if (lp != null && lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
598                width = MATCH_PARENT;
599            }
600        }
601
602        st.isOpen = true;
603        st.isHandled = false;
604
605        WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
606                width, WRAP_CONTENT,
607                st.x, st.y, WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG,
608                WindowManager.LayoutParams.FLAG_DITHER
609                | WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM
610                | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH,
611                st.decorView.mDefaultOpacity);
612
613        if (st.isCompact) {
614            lp.gravity = getOptionsPanelGravity();
615            sRotationWatcher.addWindow(this);
616        } else {
617            lp.gravity = st.gravity;
618        }
619
620        lp.windowAnimations = st.windowAnimations;
621
622        wm.addView(st.decorView, lp);
623        // Log.v(TAG, "Adding main menu to window manager.");
624    }
625
626    @Override
627    public final void closePanel(int featureId) {
628        if (featureId == FEATURE_OPTIONS_PANEL && mActionBar != null &&
629                mActionBar.isOverflowReserved()) {
630            mActionBar.hideOverflowMenu();
631        } else if (featureId == FEATURE_CONTEXT_MENU) {
632            closeContextMenu();
633        } else {
634            closePanel(getPanelState(featureId, true), true);
635        }
636    }
637
638    /**
639     * Closes the given panel.
640     *
641     * @param st The panel to be closed.
642     * @param doCallback Whether to notify the callback that the panel was
643     *            closed. If the panel is in the process of re-opening or
644     *            opening another panel (e.g., menu opening a sub menu), the
645     *            callback should not happen and this variable should be false.
646     *            In addition, this method internally will only perform the
647     *            callback if the panel is open.
648     */
649    public final void closePanel(PanelFeatureState st, boolean doCallback) {
650        // System.out.println("Close panel: isOpen=" + st.isOpen);
651        if (doCallback && st.featureId == FEATURE_OPTIONS_PANEL &&
652                mActionBar != null && mActionBar.isOverflowMenuShowing()) {
653            checkCloseActionMenu(st.menu);
654            return;
655        }
656
657        final ViewManager wm = getWindowManager();
658        if ((wm != null) && st.isOpen) {
659            if (st.decorView != null) {
660                wm.removeView(st.decorView);
661                // Log.v(TAG, "Removing main menu from window manager.");
662                if (st.isCompact) {
663                    sRotationWatcher.removeWindow(this);
664                }
665            }
666
667            if (doCallback) {
668                callOnPanelClosed(st.featureId, st, null);
669            }
670        }
671
672        st.isPrepared = false;
673        st.isHandled = false;
674        st.isOpen = false;
675
676        // This view is no longer shown, so null it out
677        st.shownPanelView = null;
678
679        if (st.isInExpandedMode) {
680            // Next time the menu opens, it should not be in expanded mode, so
681            // force a refresh of the decor
682            st.refreshDecorView = true;
683            st.isInExpandedMode = false;
684        }
685
686        if (mPreparedPanel == st) {
687            mPreparedPanel = null;
688            mPanelChordingKey = 0;
689        }
690    }
691
692    void checkCloseActionMenu(Menu menu) {
693        if (mClosingActionMenu) {
694            return;
695        }
696
697        mClosingActionMenu = true;
698        mActionBar.dismissPopupMenus();
699        Callback cb = getCallback();
700        if (cb != null && !isDestroyed()) {
701            cb.onPanelClosed(FEATURE_ACTION_BAR, menu);
702        }
703        mClosingActionMenu = false;
704    }
705
706    @Override
707    public final void togglePanel(int featureId, KeyEvent event) {
708        PanelFeatureState st = getPanelState(featureId, true);
709        if (st.isOpen) {
710            closePanel(st, true);
711        } else {
712            openPanel(st, event);
713        }
714    }
715
716    @Override
717    public void invalidatePanelMenu(int featureId) {
718        PanelFeatureState st = getPanelState(featureId, true);
719        Bundle savedActionViewStates = null;
720        if (st.menu != null) {
721            savedActionViewStates = new Bundle();
722            st.menu.saveActionViewStates(savedActionViewStates);
723            if (savedActionViewStates.size() > 0) {
724                st.frozenActionViewState = savedActionViewStates;
725            }
726            // This will be started again when the panel is prepared.
727            st.menu.stopDispatchingItemsChanged();
728            st.menu.clear();
729        }
730        st.refreshMenuContent = true;
731        st.refreshDecorView = true;
732
733        // Prepare the options panel if we have an action bar
734        if ((featureId == FEATURE_ACTION_BAR || featureId == FEATURE_OPTIONS_PANEL)
735                && mActionBar != null) {
736            st = getPanelState(Window.FEATURE_OPTIONS_PANEL, false);
737            if (st != null) {
738                st.isPrepared = false;
739                preparePanel(st, null);
740            }
741        }
742    }
743
744    /**
745     * Called when the panel key is pushed down.
746     * @param featureId The feature ID of the relevant panel (defaults to FEATURE_OPTIONS_PANEL}.
747     * @param event The key event.
748     * @return Whether the key was handled.
749     */
750    public final boolean onKeyDownPanel(int featureId, KeyEvent event) {
751        final int keyCode = event.getKeyCode();
752
753        if (event.getRepeatCount() == 0) {
754            // The panel key was pushed, so set the chording key
755            mPanelChordingKey = keyCode;
756
757            PanelFeatureState st = getPanelState(featureId, true);
758            if (!st.isOpen) {
759                return preparePanel(st, event);
760            }
761        }
762
763        return false;
764    }
765
766    /**
767     * Called when the panel key is released.
768     * @param featureId The feature ID of the relevant panel (defaults to FEATURE_OPTIONS_PANEL}.
769     * @param event The key event.
770     */
771    public final void onKeyUpPanel(int featureId, KeyEvent event) {
772        // The panel key was released, so clear the chording key
773        if (mPanelChordingKey != 0) {
774            mPanelChordingKey = 0;
775
776            if (event.isCanceled() || (mDecor != null && mDecor.mActionMode != null)) {
777                return;
778            }
779
780            boolean playSoundEffect = false;
781            final PanelFeatureState st = getPanelState(featureId, true);
782            if (featureId == FEATURE_OPTIONS_PANEL && mActionBar != null &&
783                    mActionBar.isOverflowReserved()) {
784                if (mActionBar.getVisibility() == View.VISIBLE) {
785                    if (!mActionBar.isOverflowMenuShowing()) {
786                        if (!isDestroyed() && preparePanel(st, event)) {
787                            playSoundEffect = mActionBar.showOverflowMenu();
788                        }
789                    } else {
790                        playSoundEffect = mActionBar.hideOverflowMenu();
791                    }
792                }
793            } else {
794                if (st.isOpen || st.isHandled) {
795
796                    // Play the sound effect if the user closed an open menu (and not if
797                    // they just released a menu shortcut)
798                    playSoundEffect = st.isOpen;
799
800                    // Close menu
801                    closePanel(st, true);
802
803                } else if (st.isPrepared) {
804                    boolean show = true;
805                    if (st.refreshMenuContent) {
806                        // Something may have invalidated the menu since we prepared it.
807                        // Re-prepare it to refresh.
808                        st.isPrepared = false;
809                        show = preparePanel(st, event);
810                    }
811
812                    if (show) {
813                        // Write 'menu opened' to event log
814                        EventLog.writeEvent(50001, 0);
815
816                        // Show menu
817                        openPanel(st, event);
818
819                        playSoundEffect = true;
820                    }
821                }
822            }
823
824            if (playSoundEffect) {
825                AudioManager audioManager = (AudioManager) getContext().getSystemService(
826                        Context.AUDIO_SERVICE);
827                if (audioManager != null) {
828                    audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK);
829                } else {
830                    Log.w(TAG, "Couldn't get audio manager");
831                }
832            }
833        }
834    }
835
836    @Override
837    public final void closeAllPanels() {
838        final ViewManager wm = getWindowManager();
839        if (wm == null) {
840            return;
841        }
842
843        final PanelFeatureState[] panels = mPanels;
844        final int N = panels != null ? panels.length : 0;
845        for (int i = 0; i < N; i++) {
846            final PanelFeatureState panel = panels[i];
847            if (panel != null) {
848                closePanel(panel, true);
849            }
850        }
851
852        closeContextMenu();
853    }
854
855    /**
856     * Closes the context menu. This notifies the menu logic of the close, along
857     * with dismissing it from the UI.
858     */
859    private synchronized void closeContextMenu() {
860        if (mContextMenu != null) {
861            mContextMenu.close();
862            dismissContextMenu();
863        }
864    }
865
866    /**
867     * Dismisses just the context menu UI. To close the context menu, use
868     * {@link #closeContextMenu()}.
869     */
870    private synchronized void dismissContextMenu() {
871        mContextMenu = null;
872
873        if (mContextMenuHelper != null) {
874            mContextMenuHelper.dismiss();
875            mContextMenuHelper = null;
876        }
877    }
878
879    @Override
880    public boolean performPanelShortcut(int featureId, int keyCode, KeyEvent event, int flags) {
881        return performPanelShortcut(getPanelState(featureId, true), keyCode, event, flags);
882    }
883
884    private boolean performPanelShortcut(PanelFeatureState st, int keyCode, KeyEvent event,
885            int flags) {
886        if (event.isSystem() || (st == null)) {
887            return false;
888        }
889
890        boolean handled = false;
891
892        // Only try to perform menu shortcuts if preparePanel returned true (possible false
893        // return value from application not wanting to show the menu).
894        if ((st.isPrepared || preparePanel(st, event)) && st.menu != null) {
895            // The menu is prepared now, perform the shortcut on it
896            handled = st.menu.performShortcut(keyCode, event, flags);
897        }
898
899        if (handled) {
900            // Mark as handled
901            st.isHandled = true;
902
903            // Only close down the menu if we don't have an action bar keeping it open.
904            if ((flags & Menu.FLAG_PERFORM_NO_CLOSE) == 0 && mActionBar == null) {
905                closePanel(st, true);
906            }
907        }
908
909        return handled;
910    }
911
912    @Override
913    public boolean performPanelIdentifierAction(int featureId, int id, int flags) {
914
915        PanelFeatureState st = getPanelState(featureId, true);
916        if (!preparePanel(st, new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MENU))) {
917            return false;
918        }
919        if (st.menu == null) {
920            return false;
921        }
922
923        boolean res = st.menu.performIdentifierAction(id, flags);
924
925        // Only close down the menu if we don't have an action bar keeping it open.
926        if (mActionBar == null) {
927            closePanel(st, true);
928        }
929
930        return res;
931    }
932
933    public PanelFeatureState findMenuPanel(Menu menu) {
934        final PanelFeatureState[] panels = mPanels;
935        final int N = panels != null ? panels.length : 0;
936        for (int i = 0; i < N; i++) {
937            final PanelFeatureState panel = panels[i];
938            if (panel != null && panel.menu == menu) {
939                return panel;
940            }
941        }
942        return null;
943    }
944
945    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
946        final Callback cb = getCallback();
947        if (cb != null && !isDestroyed()) {
948            final PanelFeatureState panel = findMenuPanel(menu.getRootMenu());
949            if (panel != null) {
950                return cb.onMenuItemSelected(panel.featureId, item);
951            }
952        }
953        return false;
954    }
955
956    public void onMenuModeChange(MenuBuilder menu) {
957        reopenMenu(true);
958    }
959
960    private void reopenMenu(boolean toggleMenuMode) {
961        if (mActionBar != null && mActionBar.isOverflowReserved()) {
962            final Callback cb = getCallback();
963            if (!mActionBar.isOverflowMenuShowing() || !toggleMenuMode) {
964                if (cb != null && !isDestroyed() && mActionBar.getVisibility() == View.VISIBLE) {
965                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
966                    if (cb.onPreparePanel(FEATURE_OPTIONS_PANEL, st.createdPanelView, st.menu)) {
967                        cb.onMenuOpened(FEATURE_ACTION_BAR, st.menu);
968                        mActionBar.showOverflowMenu();
969                    }
970                }
971            } else {
972                mActionBar.hideOverflowMenu();
973                if (cb != null && !isDestroyed()) {
974                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
975                    cb.onPanelClosed(FEATURE_ACTION_BAR, st.menu);
976                }
977            }
978            return;
979        }
980
981        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
982
983        // Save the future expanded mode state since closePanel will reset it
984        boolean newExpandedMode = toggleMenuMode ? !st.isInExpandedMode : st.isInExpandedMode;
985
986        st.refreshDecorView = true;
987        closePanel(st, false);
988
989        // Set the expanded mode state
990        st.isInExpandedMode = newExpandedMode;
991
992        openPanel(st, null);
993    }
994
995    /**
996     * Initializes the menu associated with the given panel feature state. You
997     * must at the very least set PanelFeatureState.menu to the Menu to be
998     * associated with the given panel state. The default implementation creates
999     * a new menu for the panel state.
1000     *
1001     * @param st The panel whose menu is being initialized.
1002     * @return Whether the initialization was successful.
1003     */
1004    protected boolean initializePanelMenu(final PanelFeatureState st) {
1005        Context context = getContext();
1006
1007        // If we have an action bar, initialize the menu with a context themed for it.
1008        if ((st.featureId == FEATURE_OPTIONS_PANEL || st.featureId == FEATURE_ACTION_BAR) &&
1009                mActionBar != null) {
1010            TypedValue outValue = new TypedValue();
1011            Resources.Theme currentTheme = context.getTheme();
1012            currentTheme.resolveAttribute(com.android.internal.R.attr.actionBarWidgetTheme,
1013                    outValue, true);
1014            final int targetThemeRes = outValue.resourceId;
1015
1016            if (targetThemeRes != 0 && context.getThemeResId() != targetThemeRes) {
1017                context = new ContextThemeWrapper(context, targetThemeRes);
1018            }
1019        }
1020
1021        final MenuBuilder menu = new MenuBuilder(context);
1022
1023        menu.setCallback(this);
1024        st.setMenu(menu);
1025
1026        return true;
1027    }
1028
1029    /**
1030     * Perform initial setup of a panel. This should at the very least set the
1031     * style information in the PanelFeatureState and must set
1032     * PanelFeatureState.decor to the panel's window decor view.
1033     *
1034     * @param st The panel being initialized.
1035     */
1036    protected boolean initializePanelDecor(PanelFeatureState st) {
1037        st.decorView = new DecorView(getContext(), st.featureId);
1038        st.gravity = Gravity.CENTER | Gravity.BOTTOM;
1039        st.setStyle(getContext());
1040
1041        return true;
1042    }
1043
1044    /**
1045     * Determine the gravity value for the options panel. This can
1046     * differ in compact mode.
1047     *
1048     * @return gravity value to use for the panel window
1049     */
1050    private int getOptionsPanelGravity() {
1051        try {
1052            return WindowManagerHolder.sWindowManager.getPreferredOptionsPanelGravity();
1053        } catch (RemoteException ex) {
1054            Log.e(TAG, "Couldn't getOptionsPanelGravity; using default", ex);
1055            return Gravity.CENTER | Gravity.BOTTOM;
1056        }
1057    }
1058
1059    void onOptionsPanelRotationChanged() {
1060        final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
1061        if (st == null) return;
1062
1063        final WindowManager.LayoutParams lp = st.decorView != null ?
1064                (WindowManager.LayoutParams) st.decorView.getLayoutParams() : null;
1065        if (lp != null) {
1066            lp.gravity = getOptionsPanelGravity();
1067            final ViewManager wm = getWindowManager();
1068            if (wm != null) {
1069                wm.updateViewLayout(st.decorView, lp);
1070            }
1071        }
1072    }
1073
1074    /**
1075     * Initializes the panel associated with the panel feature state. You must
1076     * at the very least set PanelFeatureState.panel to the View implementing
1077     * its contents. The default implementation gets the panel from the menu.
1078     *
1079     * @param st The panel state being initialized.
1080     * @return Whether the initialization was successful.
1081     */
1082    protected boolean initializePanelContent(PanelFeatureState st) {
1083        if (st.createdPanelView != null) {
1084            st.shownPanelView = st.createdPanelView;
1085            return true;
1086        }
1087
1088        if (st.menu == null) {
1089            return false;
1090        }
1091
1092        if (mPanelMenuPresenterCallback == null) {
1093            mPanelMenuPresenterCallback = new PanelMenuPresenterCallback();
1094        }
1095
1096        MenuView menuView = st.isInListMode()
1097                ? st.getListMenuView(getContext(), mPanelMenuPresenterCallback)
1098                : st.getIconMenuView(getContext(), mPanelMenuPresenterCallback);
1099
1100        st.shownPanelView = (View) menuView;
1101
1102        if (st.shownPanelView != null) {
1103            // Use the menu View's default animations if it has any
1104            final int defaultAnimations = menuView.getWindowAnimations();
1105            if (defaultAnimations != 0) {
1106                st.windowAnimations = defaultAnimations;
1107            }
1108            return true;
1109        } else {
1110            return false;
1111        }
1112    }
1113
1114    @Override
1115    public boolean performContextMenuIdentifierAction(int id, int flags) {
1116        return (mContextMenu != null) ? mContextMenu.performIdentifierAction(id, flags) : false;
1117    }
1118
1119    @Override
1120    public final void setBackgroundDrawable(Drawable drawable) {
1121        if (drawable != mBackgroundDrawable || mBackgroundResource != 0) {
1122            mBackgroundResource = 0;
1123            mBackgroundDrawable = drawable;
1124            if (mDecor != null) {
1125                mDecor.setWindowBackground(drawable);
1126            }
1127        }
1128    }
1129
1130    @Override
1131    public final void setFeatureDrawableResource(int featureId, int resId) {
1132        if (resId != 0) {
1133            DrawableFeatureState st = getDrawableState(featureId, true);
1134            if (st.resid != resId) {
1135                st.resid = resId;
1136                st.uri = null;
1137                st.local = getContext().getResources().getDrawable(resId);
1138                updateDrawable(featureId, st, false);
1139            }
1140        } else {
1141            setFeatureDrawable(featureId, null);
1142        }
1143    }
1144
1145    @Override
1146    public final void setFeatureDrawableUri(int featureId, Uri uri) {
1147        if (uri != null) {
1148            DrawableFeatureState st = getDrawableState(featureId, true);
1149            if (st.uri == null || !st.uri.equals(uri)) {
1150                st.resid = 0;
1151                st.uri = uri;
1152                st.local = loadImageURI(uri);
1153                updateDrawable(featureId, st, false);
1154            }
1155        } else {
1156            setFeatureDrawable(featureId, null);
1157        }
1158    }
1159
1160    @Override
1161    public final void setFeatureDrawable(int featureId, Drawable drawable) {
1162        DrawableFeatureState st = getDrawableState(featureId, true);
1163        st.resid = 0;
1164        st.uri = null;
1165        if (st.local != drawable) {
1166            st.local = drawable;
1167            updateDrawable(featureId, st, false);
1168        }
1169    }
1170
1171    @Override
1172    public void setFeatureDrawableAlpha(int featureId, int alpha) {
1173        DrawableFeatureState st = getDrawableState(featureId, true);
1174        if (st.alpha != alpha) {
1175            st.alpha = alpha;
1176            updateDrawable(featureId, st, false);
1177        }
1178    }
1179
1180    protected final void setFeatureDefaultDrawable(int featureId, Drawable drawable) {
1181        DrawableFeatureState st = getDrawableState(featureId, true);
1182        if (st.def != drawable) {
1183            st.def = drawable;
1184            updateDrawable(featureId, st, false);
1185        }
1186    }
1187
1188    @Override
1189    public final void setFeatureInt(int featureId, int value) {
1190        // XXX Should do more management (as with drawable features) to
1191        // deal with interactions between multiple window policies.
1192        updateInt(featureId, value, false);
1193    }
1194
1195    /**
1196     * Update the state of a drawable feature. This should be called, for every
1197     * drawable feature supported, as part of onActive(), to make sure that the
1198     * contents of a containing window is properly updated.
1199     *
1200     * @see #onActive
1201     * @param featureId The desired drawable feature to change.
1202     * @param fromActive Always true when called from onActive().
1203     */
1204    protected final void updateDrawable(int featureId, boolean fromActive) {
1205        final DrawableFeatureState st = getDrawableState(featureId, false);
1206        if (st != null) {
1207            updateDrawable(featureId, st, fromActive);
1208        }
1209    }
1210
1211    /**
1212     * Called when a Drawable feature changes, for the window to update its
1213     * graphics.
1214     *
1215     * @param featureId The feature being changed.
1216     * @param drawable The new Drawable to show, or null if none.
1217     * @param alpha The new alpha blending of the Drawable.
1218     */
1219    protected void onDrawableChanged(int featureId, Drawable drawable, int alpha) {
1220        ImageView view;
1221        if (featureId == FEATURE_LEFT_ICON) {
1222            view = getLeftIconView();
1223        } else if (featureId == FEATURE_RIGHT_ICON) {
1224            view = getRightIconView();
1225        } else {
1226            return;
1227        }
1228
1229        if (drawable != null) {
1230            drawable.setAlpha(alpha);
1231            view.setImageDrawable(drawable);
1232            view.setVisibility(View.VISIBLE);
1233        } else {
1234            view.setVisibility(View.GONE);
1235        }
1236    }
1237
1238    /**
1239     * Called when an int feature changes, for the window to update its
1240     * graphics.
1241     *
1242     * @param featureId The feature being changed.
1243     * @param value The new integer value.
1244     */
1245    protected void onIntChanged(int featureId, int value) {
1246        if (featureId == FEATURE_PROGRESS || featureId == FEATURE_INDETERMINATE_PROGRESS) {
1247            updateProgressBars(value);
1248        } else if (featureId == FEATURE_CUSTOM_TITLE) {
1249            FrameLayout titleContainer = (FrameLayout) findViewById(com.android.internal.R.id.title_container);
1250            if (titleContainer != null) {
1251                mLayoutInflater.inflate(value, titleContainer);
1252            }
1253        }
1254    }
1255
1256    /**
1257     * Updates the progress bars that are shown in the title bar.
1258     *
1259     * @param value Can be one of {@link Window#PROGRESS_VISIBILITY_ON},
1260     *            {@link Window#PROGRESS_VISIBILITY_OFF},
1261     *            {@link Window#PROGRESS_INDETERMINATE_ON},
1262     *            {@link Window#PROGRESS_INDETERMINATE_OFF}, or a value
1263     *            starting at {@link Window#PROGRESS_START} through
1264     *            {@link Window#PROGRESS_END} for setting the default
1265     *            progress (if {@link Window#PROGRESS_END} is given,
1266     *            the progress bar widgets in the title will be hidden after an
1267     *            animation), a value between
1268     *            {@link Window#PROGRESS_SECONDARY_START} -
1269     *            {@link Window#PROGRESS_SECONDARY_END} for the
1270     *            secondary progress (if
1271     *            {@link Window#PROGRESS_SECONDARY_END} is given, the
1272     *            progress bar widgets will still be shown with the secondary
1273     *            progress bar will be completely filled in.)
1274     */
1275    private void updateProgressBars(int value) {
1276        ProgressBar circularProgressBar = getCircularProgressBar(true);
1277        ProgressBar horizontalProgressBar = getHorizontalProgressBar(true);
1278
1279        final int features = getLocalFeatures();
1280        if (value == PROGRESS_VISIBILITY_ON) {
1281            if ((features & (1 << FEATURE_PROGRESS)) != 0) {
1282                int level = horizontalProgressBar.getProgress();
1283                int visibility = (horizontalProgressBar.isIndeterminate() || level < 10000) ?
1284                        View.VISIBLE : View.INVISIBLE;
1285                horizontalProgressBar.setVisibility(visibility);
1286            }
1287            if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
1288                circularProgressBar.setVisibility(View.VISIBLE);
1289            }
1290        } else if (value == PROGRESS_VISIBILITY_OFF) {
1291            if ((features & (1 << FEATURE_PROGRESS)) != 0) {
1292                horizontalProgressBar.setVisibility(View.GONE);
1293            }
1294            if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
1295                circularProgressBar.setVisibility(View.GONE);
1296            }
1297        } else if (value == PROGRESS_INDETERMINATE_ON) {
1298            horizontalProgressBar.setIndeterminate(true);
1299        } else if (value == PROGRESS_INDETERMINATE_OFF) {
1300            horizontalProgressBar.setIndeterminate(false);
1301        } else if (PROGRESS_START <= value && value <= PROGRESS_END) {
1302            // We want to set the progress value before testing for visibility
1303            // so that when the progress bar becomes visible again, it has the
1304            // correct level.
1305            horizontalProgressBar.setProgress(value - PROGRESS_START);
1306
1307            if (value < PROGRESS_END) {
1308                showProgressBars(horizontalProgressBar, circularProgressBar);
1309            } else {
1310                hideProgressBars(horizontalProgressBar, circularProgressBar);
1311            }
1312        } else if (PROGRESS_SECONDARY_START <= value && value <= PROGRESS_SECONDARY_END) {
1313            horizontalProgressBar.setSecondaryProgress(value - PROGRESS_SECONDARY_START);
1314
1315            showProgressBars(horizontalProgressBar, circularProgressBar);
1316        }
1317
1318    }
1319
1320    private void showProgressBars(ProgressBar horizontalProgressBar, ProgressBar spinnyProgressBar) {
1321        final int features = getLocalFeatures();
1322        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0 &&
1323                spinnyProgressBar.getVisibility() == View.INVISIBLE) {
1324            spinnyProgressBar.setVisibility(View.VISIBLE);
1325        }
1326        // Only show the progress bars if the primary progress is not complete
1327        if ((features & (1 << FEATURE_PROGRESS)) != 0 &&
1328                horizontalProgressBar.getProgress() < 10000) {
1329            horizontalProgressBar.setVisibility(View.VISIBLE);
1330        }
1331    }
1332
1333    private void hideProgressBars(ProgressBar horizontalProgressBar, ProgressBar spinnyProgressBar) {
1334        final int features = getLocalFeatures();
1335        Animation anim = AnimationUtils.loadAnimation(getContext(), com.android.internal.R.anim.fade_out);
1336        anim.setDuration(1000);
1337        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0 &&
1338                spinnyProgressBar.getVisibility() == View.VISIBLE) {
1339            spinnyProgressBar.startAnimation(anim);
1340            spinnyProgressBar.setVisibility(View.INVISIBLE);
1341        }
1342        if ((features & (1 << FEATURE_PROGRESS)) != 0 &&
1343                horizontalProgressBar.getVisibility() == View.VISIBLE) {
1344            horizontalProgressBar.startAnimation(anim);
1345            horizontalProgressBar.setVisibility(View.INVISIBLE);
1346        }
1347    }
1348
1349    /**
1350     * Request that key events come to this activity. Use this if your activity
1351     * has no views with focus, but the activity still wants a chance to process
1352     * key events.
1353     */
1354    @Override
1355    public void takeKeyEvents(boolean get) {
1356        mDecor.setFocusable(get);
1357    }
1358
1359    @Override
1360    public boolean superDispatchKeyEvent(KeyEvent event) {
1361        return mDecor.superDispatchKeyEvent(event);
1362    }
1363
1364    @Override
1365    public boolean superDispatchKeyShortcutEvent(KeyEvent event) {
1366        return mDecor.superDispatchKeyShortcutEvent(event);
1367    }
1368
1369    @Override
1370    public boolean superDispatchTouchEvent(MotionEvent event) {
1371        return mDecor.superDispatchTouchEvent(event);
1372    }
1373
1374    @Override
1375    public boolean superDispatchTrackballEvent(MotionEvent event) {
1376        return mDecor.superDispatchTrackballEvent(event);
1377    }
1378
1379    @Override
1380    public boolean superDispatchGenericMotionEvent(MotionEvent event) {
1381        return mDecor.superDispatchGenericMotionEvent(event);
1382    }
1383
1384    /**
1385     * A key was pressed down and not handled by anything else in the window.
1386     *
1387     * @see #onKeyUp
1388     * @see android.view.KeyEvent
1389     */
1390    protected boolean onKeyDown(int featureId, int keyCode, KeyEvent event) {
1391        /* ****************************************************************************
1392         * HOW TO DECIDE WHERE YOUR KEY HANDLING GOES.
1393         *
1394         * If your key handling must happen before the app gets a crack at the event,
1395         * it goes in PhoneWindowManager.
1396         *
1397         * If your key handling should happen in all windows, and does not depend on
1398         * the state of the current application, other than that the current
1399         * application can override the behavior by handling the event itself, it
1400         * should go in PhoneFallbackEventHandler.
1401         *
1402         * Only if your handling depends on the window, and the fact that it has
1403         * a DecorView, should it go here.
1404         * ****************************************************************************/
1405
1406        final KeyEvent.DispatcherState dispatcher =
1407                mDecor != null ? mDecor.getKeyDispatcherState() : null;
1408        //Log.i(TAG, "Key down: repeat=" + event.getRepeatCount()
1409        //        + " flags=0x" + Integer.toHexString(event.getFlags()));
1410
1411        switch (keyCode) {
1412            case KeyEvent.KEYCODE_VOLUME_UP:
1413            case KeyEvent.KEYCODE_VOLUME_DOWN:
1414            case KeyEvent.KEYCODE_VOLUME_MUTE: {
1415                // Similar code is in PhoneFallbackEventHandler in case the window
1416                // doesn't have one of these.  In this case, we execute it here and
1417                // eat the event instead, because we have mVolumeControlStreamType
1418                // and they don't.
1419                getAudioManager().handleKeyDown(keyCode, mVolumeControlStreamType);
1420                return true;
1421            }
1422
1423            case KeyEvent.KEYCODE_MENU: {
1424                onKeyDownPanel((featureId < 0) ? FEATURE_OPTIONS_PANEL : featureId, event);
1425                return true;
1426            }
1427
1428            case KeyEvent.KEYCODE_BACK: {
1429                if (event.getRepeatCount() > 0) break;
1430                if (featureId < 0) break;
1431                // Currently don't do anything with long press.
1432                if (dispatcher != null) {
1433                    dispatcher.startTracking(event, this);
1434                }
1435                return true;
1436            }
1437
1438        }
1439
1440        return false;
1441    }
1442
1443    private KeyguardManager getKeyguardManager() {
1444        if (mKeyguardManager == null) {
1445            mKeyguardManager = (KeyguardManager) getContext().getSystemService(
1446                    Context.KEYGUARD_SERVICE);
1447        }
1448        return mKeyguardManager;
1449    }
1450
1451    AudioManager getAudioManager() {
1452        if (mAudioManager == null) {
1453            mAudioManager = (AudioManager)getContext().getSystemService(Context.AUDIO_SERVICE);
1454        }
1455        return mAudioManager;
1456    }
1457
1458    /**
1459     * A key was released and not handled by anything else in the window.
1460     *
1461     * @see #onKeyDown
1462     * @see android.view.KeyEvent
1463     */
1464    protected boolean onKeyUp(int featureId, int keyCode, KeyEvent event) {
1465        final KeyEvent.DispatcherState dispatcher =
1466                mDecor != null ? mDecor.getKeyDispatcherState() : null;
1467        if (dispatcher != null) {
1468            dispatcher.handleUpEvent(event);
1469        }
1470        //Log.i(TAG, "Key up: repeat=" + event.getRepeatCount()
1471        //        + " flags=0x" + Integer.toHexString(event.getFlags()));
1472
1473        switch (keyCode) {
1474            case KeyEvent.KEYCODE_VOLUME_UP:
1475            case KeyEvent.KEYCODE_VOLUME_DOWN:
1476            case KeyEvent.KEYCODE_VOLUME_MUTE: {
1477                // Similar code is in PhoneFallbackEventHandler in case the window
1478                // doesn't have one of these.  In this case, we execute it here and
1479                // eat the event instead, because we have mVolumeControlStreamType
1480                // and they don't.
1481                getAudioManager().handleKeyUp(keyCode, mVolumeControlStreamType);
1482                return true;
1483            }
1484
1485            case KeyEvent.KEYCODE_MENU: {
1486                onKeyUpPanel(featureId < 0 ? FEATURE_OPTIONS_PANEL : featureId,
1487                        event);
1488                return true;
1489            }
1490
1491            case KeyEvent.KEYCODE_BACK: {
1492                if (featureId < 0) break;
1493                if (event.isTracking() && !event.isCanceled()) {
1494                    if (featureId == FEATURE_OPTIONS_PANEL) {
1495                        PanelFeatureState st = getPanelState(featureId, false);
1496                        if (st != null && st.isInExpandedMode) {
1497                            // If the user is in an expanded menu and hits back, it
1498                            // should go back to the icon menu
1499                            reopenMenu(true);
1500                            return true;
1501                        }
1502                    }
1503                    closePanel(featureId);
1504                    return true;
1505                }
1506                break;
1507            }
1508
1509            case KeyEvent.KEYCODE_SEARCH: {
1510                /*
1511                 * Do this in onKeyUp since the Search key is also used for
1512                 * chording quick launch shortcuts.
1513                 */
1514                if (getKeyguardManager().inKeyguardRestrictedInputMode()) {
1515                    break;
1516                }
1517                if (event.isTracking() && !event.isCanceled()) {
1518                    launchDefaultSearch();
1519                }
1520                return true;
1521            }
1522        }
1523
1524        return false;
1525    }
1526
1527    @Override
1528    protected void onActive() {
1529    }
1530
1531    @Override
1532    public final View getDecorView() {
1533        if (mDecor == null) {
1534            installDecor();
1535        }
1536        return mDecor;
1537    }
1538
1539    @Override
1540    public final View peekDecorView() {
1541        return mDecor;
1542    }
1543
1544    static private final String FOCUSED_ID_TAG = "android:focusedViewId";
1545    static private final String VIEWS_TAG = "android:views";
1546    static private final String PANELS_TAG = "android:Panels";
1547    static private final String ACTION_BAR_TAG = "android:ActionBar";
1548
1549    /** {@inheritDoc} */
1550    @Override
1551    public Bundle saveHierarchyState() {
1552        Bundle outState = new Bundle();
1553        if (mContentParent == null) {
1554            return outState;
1555        }
1556
1557        SparseArray<Parcelable> states = new SparseArray<Parcelable>();
1558        mContentParent.saveHierarchyState(states);
1559        outState.putSparseParcelableArray(VIEWS_TAG, states);
1560
1561        // save the focused view id
1562        View focusedView = mContentParent.findFocus();
1563        if (focusedView != null) {
1564            if (focusedView.getId() != View.NO_ID) {
1565                outState.putInt(FOCUSED_ID_TAG, focusedView.getId());
1566            } else {
1567                if (false) {
1568                    Log.d(TAG, "couldn't save which view has focus because the focused view "
1569                            + focusedView + " has no id.");
1570                }
1571            }
1572        }
1573
1574        // save the panels
1575        SparseArray<Parcelable> panelStates = new SparseArray<Parcelable>();
1576        savePanelState(panelStates);
1577        if (panelStates.size() > 0) {
1578            outState.putSparseParcelableArray(PANELS_TAG, panelStates);
1579        }
1580
1581        if (mActionBar != null) {
1582            SparseArray<Parcelable> actionBarStates = new SparseArray<Parcelable>();
1583            mActionBar.saveHierarchyState(actionBarStates);
1584            outState.putSparseParcelableArray(ACTION_BAR_TAG, actionBarStates);
1585        }
1586
1587        return outState;
1588    }
1589
1590    /** {@inheritDoc} */
1591    @Override
1592    public void restoreHierarchyState(Bundle savedInstanceState) {
1593        if (mContentParent == null) {
1594            return;
1595        }
1596
1597        SparseArray<Parcelable> savedStates
1598                = savedInstanceState.getSparseParcelableArray(VIEWS_TAG);
1599        if (savedStates != null) {
1600            mContentParent.restoreHierarchyState(savedStates);
1601        }
1602
1603        // restore the focused view
1604        int focusedViewId = savedInstanceState.getInt(FOCUSED_ID_TAG, View.NO_ID);
1605        if (focusedViewId != View.NO_ID) {
1606            View needsFocus = mContentParent.findViewById(focusedViewId);
1607            if (needsFocus != null) {
1608                needsFocus.requestFocus();
1609            } else {
1610                Log.w(TAG,
1611                        "Previously focused view reported id " + focusedViewId
1612                                + " during save, but can't be found during restore.");
1613            }
1614        }
1615
1616        // restore the panels
1617        SparseArray<Parcelable> panelStates = savedInstanceState.getSparseParcelableArray(PANELS_TAG);
1618        if (panelStates != null) {
1619            restorePanelState(panelStates);
1620        }
1621
1622        if (mActionBar != null) {
1623            SparseArray<Parcelable> actionBarStates =
1624                    savedInstanceState.getSparseParcelableArray(ACTION_BAR_TAG);
1625            mActionBar.restoreHierarchyState(actionBarStates);
1626        }
1627    }
1628
1629    /**
1630     * Invoked when the panels should freeze their state.
1631     *
1632     * @param icicles Save state into this. This is usually indexed by the
1633     *            featureId. This will be given to {@link #restorePanelState} in the
1634     *            future.
1635     */
1636    private void savePanelState(SparseArray<Parcelable> icicles) {
1637        PanelFeatureState[] panels = mPanels;
1638        if (panels == null) {
1639            return;
1640        }
1641
1642        for (int curFeatureId = panels.length - 1; curFeatureId >= 0; curFeatureId--) {
1643            if (panels[curFeatureId] != null) {
1644                icicles.put(curFeatureId, panels[curFeatureId].onSaveInstanceState());
1645            }
1646        }
1647    }
1648
1649    /**
1650     * Invoked when the panels should thaw their state from a previously frozen state.
1651     *
1652     * @param icicles The state saved by {@link #savePanelState} that needs to be thawed.
1653     */
1654    private void restorePanelState(SparseArray<Parcelable> icicles) {
1655        PanelFeatureState st;
1656        int curFeatureId;
1657        for (int i = icicles.size() - 1; i >= 0; i--) {
1658            curFeatureId = icicles.keyAt(i);
1659            st = getPanelState(curFeatureId, false /* required */);
1660            if (st == null) {
1661                // The panel must not have been required, and is currently not around, skip it
1662                continue;
1663            }
1664
1665            st.onRestoreInstanceState(icicles.get(curFeatureId));
1666            invalidatePanelMenu(curFeatureId);
1667        }
1668
1669        /*
1670         * Implementation note: call openPanelsAfterRestore later to actually open the
1671         * restored panels.
1672         */
1673    }
1674
1675    /**
1676     * Opens the panels that have had their state restored. This should be
1677     * called sometime after {@link #restorePanelState} when it is safe to add
1678     * to the window manager.
1679     */
1680    private void openPanelsAfterRestore() {
1681        PanelFeatureState[] panels = mPanels;
1682
1683        if (panels == null) {
1684            return;
1685        }
1686
1687        PanelFeatureState st;
1688        for (int i = panels.length - 1; i >= 0; i--) {
1689            st = panels[i];
1690            // We restore the panel if it was last open; we skip it if it
1691            // now is open, to avoid a race condition if the user immediately
1692            // opens it when we are resuming.
1693            if (st != null) {
1694                st.applyFrozenState();
1695                if (!st.isOpen && st.wasLastOpen) {
1696                    st.isInExpandedMode = st.wasLastExpanded;
1697                    openPanel(st, null);
1698                }
1699            }
1700        }
1701    }
1702
1703    private class PanelMenuPresenterCallback implements MenuPresenter.Callback {
1704        @Override
1705        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
1706            final Menu parentMenu = menu.getRootMenu();
1707            final boolean isSubMenu = parentMenu != menu;
1708            final PanelFeatureState panel = findMenuPanel(isSubMenu ? parentMenu : menu);
1709            if (panel != null) {
1710                if (isSubMenu) {
1711                    callOnPanelClosed(panel.featureId, panel, parentMenu);
1712                    closePanel(panel, true);
1713                } else {
1714                    // Close the panel and only do the callback if the menu is being
1715                    // closed completely, not if opening a sub menu
1716                    closePanel(panel, allMenusAreClosing);
1717                }
1718            }
1719        }
1720
1721        @Override
1722        public boolean onOpenSubMenu(MenuBuilder subMenu) {
1723            if (subMenu == null && hasFeature(FEATURE_ACTION_BAR)) {
1724                Callback cb = getCallback();
1725                if (cb != null && !isDestroyed()) {
1726                    cb.onMenuOpened(FEATURE_ACTION_BAR, subMenu);
1727                }
1728            }
1729
1730            return true;
1731        }
1732    }
1733
1734    private final class ActionMenuPresenterCallback implements MenuPresenter.Callback {
1735        @Override
1736        public boolean onOpenSubMenu(MenuBuilder subMenu) {
1737            Callback cb = getCallback();
1738            if (cb != null) {
1739                cb.onMenuOpened(FEATURE_ACTION_BAR, subMenu);
1740                return true;
1741            }
1742            return false;
1743        }
1744
1745        @Override
1746        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
1747            checkCloseActionMenu(menu);
1748        }
1749    }
1750
1751    private final class DecorView extends FrameLayout implements RootViewSurfaceTaker {
1752        /* package */int mDefaultOpacity = PixelFormat.OPAQUE;
1753
1754        /** The feature ID of the panel, or -1 if this is the application's DecorView */
1755        private final int mFeatureId;
1756
1757        private final Rect mDrawingBounds = new Rect();
1758
1759        private final Rect mBackgroundPadding = new Rect();
1760
1761        private final Rect mFramePadding = new Rect();
1762
1763        private final Rect mFrameOffsets = new Rect();
1764
1765        private boolean mChanging;
1766
1767        private Drawable mMenuBackground;
1768        private boolean mWatchingForMenu;
1769        private int mDownY;
1770
1771        private ActionMode mActionMode;
1772        private ActionBarContextView mActionModeView;
1773        private PopupWindow mActionModePopup;
1774        private Runnable mShowActionModePopup;
1775
1776        public DecorView(Context context, int featureId) {
1777            super(context);
1778            mFeatureId = featureId;
1779        }
1780
1781        @Override
1782        public boolean dispatchKeyEvent(KeyEvent event) {
1783            final int keyCode = event.getKeyCode();
1784            final int action = event.getAction();
1785            final boolean isDown = action == KeyEvent.ACTION_DOWN;
1786
1787            if (isDown && (event.getRepeatCount() == 0)) {
1788                // First handle chording of panel key: if a panel key is held
1789                // but not released, try to execute a shortcut in it.
1790                if ((mPanelChordingKey > 0) && (mPanelChordingKey != keyCode)) {
1791                    boolean handled = dispatchKeyShortcutEvent(event);
1792                    if (handled) {
1793                        return true;
1794                    }
1795                }
1796
1797                // If a panel is open, perform a shortcut on it without the
1798                // chorded panel key
1799                if ((mPreparedPanel != null) && mPreparedPanel.isOpen) {
1800                    if (performPanelShortcut(mPreparedPanel, keyCode, event, 0)) {
1801                        return true;
1802                    }
1803                }
1804            }
1805
1806            if (!isDestroyed()) {
1807                final Callback cb = getCallback();
1808                final boolean handled = cb != null && mFeatureId < 0 ? cb.dispatchKeyEvent(event)
1809                        : super.dispatchKeyEvent(event);
1810                if (handled) {
1811                    return true;
1812                }
1813            }
1814
1815            return isDown ? PhoneWindow.this.onKeyDown(mFeatureId, event.getKeyCode(), event)
1816                    : PhoneWindow.this.onKeyUp(mFeatureId, event.getKeyCode(), event);
1817        }
1818
1819        @Override
1820        public boolean dispatchKeyShortcutEvent(KeyEvent ev) {
1821            // If the panel is already prepared, then perform the shortcut using it.
1822            boolean handled;
1823            if (mPreparedPanel != null) {
1824                handled = performPanelShortcut(mPreparedPanel, ev.getKeyCode(), ev,
1825                        Menu.FLAG_PERFORM_NO_CLOSE);
1826                if (handled) {
1827                    if (mPreparedPanel != null) {
1828                        mPreparedPanel.isHandled = true;
1829                    }
1830                    return true;
1831                }
1832            }
1833
1834            // Shortcut not handled by the panel.  Dispatch to the view hierarchy.
1835            final Callback cb = getCallback();
1836            handled = cb != null && !isDestroyed() && mFeatureId < 0
1837                    ? cb.dispatchKeyShortcutEvent(ev) : super.dispatchKeyShortcutEvent(ev);
1838            if (handled) {
1839                return true;
1840            }
1841
1842            // If the panel is not prepared, then we may be trying to handle a shortcut key
1843            // combination such as Control+C.  Temporarily prepare the panel then mark it
1844            // unprepared again when finished to ensure that the panel will again be prepared
1845            // the next time it is shown for real.
1846            if (mPreparedPanel == null) {
1847                PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
1848                preparePanel(st, ev);
1849                handled = performPanelShortcut(st, ev.getKeyCode(), ev,
1850                        Menu.FLAG_PERFORM_NO_CLOSE);
1851                st.isPrepared = false;
1852                if (handled) {
1853                    return true;
1854                }
1855            }
1856            return false;
1857        }
1858
1859        @Override
1860        public boolean dispatchTouchEvent(MotionEvent ev) {
1861            final Callback cb = getCallback();
1862            return cb != null && !isDestroyed() && mFeatureId < 0 ? cb.dispatchTouchEvent(ev)
1863                    : super.dispatchTouchEvent(ev);
1864        }
1865
1866        @Override
1867        public boolean dispatchTrackballEvent(MotionEvent ev) {
1868            final Callback cb = getCallback();
1869            return cb != null && !isDestroyed() && mFeatureId < 0 ? cb.dispatchTrackballEvent(ev)
1870                    : super.dispatchTrackballEvent(ev);
1871        }
1872
1873        @Override
1874        public boolean dispatchGenericMotionEvent(MotionEvent ev) {
1875            final Callback cb = getCallback();
1876            return cb != null && !isDestroyed() && mFeatureId < 0 ? cb.dispatchGenericMotionEvent(ev)
1877                    : super.dispatchGenericMotionEvent(ev);
1878        }
1879
1880        public boolean superDispatchKeyEvent(KeyEvent event) {
1881            if (super.dispatchKeyEvent(event)) {
1882                return true;
1883            }
1884
1885            // Not handled by the view hierarchy, does the action bar want it
1886            // to cancel out of something special?
1887            if (event.getKeyCode() == KeyEvent.KEYCODE_BACK) {
1888                final int action = event.getAction();
1889                // Back cancels action modes first.
1890                if (mActionMode != null) {
1891                    if (action == KeyEvent.ACTION_UP) {
1892                        mActionMode.finish();
1893                    }
1894                    return true;
1895                }
1896
1897                // Next collapse any expanded action views.
1898                if (mActionBar != null && mActionBar.hasExpandedActionView()) {
1899                    if (action == KeyEvent.ACTION_UP) {
1900                        mActionBar.collapseActionView();
1901                    }
1902                    return true;
1903                }
1904            }
1905
1906            return false;
1907        }
1908
1909        public boolean superDispatchKeyShortcutEvent(KeyEvent event) {
1910            return super.dispatchKeyShortcutEvent(event);
1911        }
1912
1913        public boolean superDispatchTouchEvent(MotionEvent event) {
1914            return super.dispatchTouchEvent(event);
1915        }
1916
1917        public boolean superDispatchTrackballEvent(MotionEvent event) {
1918            return super.dispatchTrackballEvent(event);
1919        }
1920
1921        public boolean superDispatchGenericMotionEvent(MotionEvent event) {
1922            return super.dispatchGenericMotionEvent(event);
1923        }
1924
1925        @Override
1926        public boolean onTouchEvent(MotionEvent event) {
1927            return onInterceptTouchEvent(event);
1928        }
1929
1930        private boolean isOutOfBounds(int x, int y) {
1931            return x < -5 || y < -5 || x > (getWidth() + 5)
1932                    || y > (getHeight() + 5);
1933        }
1934
1935        @Override
1936        public boolean onInterceptTouchEvent(MotionEvent event) {
1937            int action = event.getAction();
1938            if (mFeatureId >= 0) {
1939                if (action == MotionEvent.ACTION_DOWN) {
1940                    int x = (int)event.getX();
1941                    int y = (int)event.getY();
1942                    if (isOutOfBounds(x, y)) {
1943                        closePanel(mFeatureId);
1944                        return true;
1945                    }
1946                }
1947            }
1948
1949            if (!SWEEP_OPEN_MENU) {
1950                return false;
1951            }
1952
1953            if (mFeatureId >= 0) {
1954                if (action == MotionEvent.ACTION_DOWN) {
1955                    Log.i(TAG, "Watchiing!");
1956                    mWatchingForMenu = true;
1957                    mDownY = (int) event.getY();
1958                    return false;
1959                }
1960
1961                if (!mWatchingForMenu) {
1962                    return false;
1963                }
1964
1965                int y = (int)event.getY();
1966                if (action == MotionEvent.ACTION_MOVE) {
1967                    if (y > (mDownY+30)) {
1968                        Log.i(TAG, "Closing!");
1969                        closePanel(mFeatureId);
1970                        mWatchingForMenu = false;
1971                        return true;
1972                    }
1973                } else if (action == MotionEvent.ACTION_UP) {
1974                    mWatchingForMenu = false;
1975                }
1976
1977                return false;
1978            }
1979
1980            //Log.i(TAG, "Intercept: action=" + action + " y=" + event.getY()
1981            //        + " (in " + getHeight() + ")");
1982
1983            if (action == MotionEvent.ACTION_DOWN) {
1984                int y = (int)event.getY();
1985                if (y >= (getHeight()-5) && !hasChildren()) {
1986                    Log.i(TAG, "Watchiing!");
1987                    mWatchingForMenu = true;
1988                }
1989                return false;
1990            }
1991
1992            if (!mWatchingForMenu) {
1993                return false;
1994            }
1995
1996            int y = (int)event.getY();
1997            if (action == MotionEvent.ACTION_MOVE) {
1998                if (y < (getHeight()-30)) {
1999                    Log.i(TAG, "Opening!");
2000                    openPanel(FEATURE_OPTIONS_PANEL, new KeyEvent(
2001                            KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MENU));
2002                    mWatchingForMenu = false;
2003                    return true;
2004                }
2005            } else if (action == MotionEvent.ACTION_UP) {
2006                mWatchingForMenu = false;
2007            }
2008
2009            return false;
2010        }
2011
2012        @Override
2013        public void sendAccessibilityEvent(int eventType) {
2014            if (!AccessibilityManager.getInstance(mContext).isEnabled()) {
2015                return;
2016            }
2017
2018            // if we are showing a feature that should be announced and one child
2019            // make this child the event source since this is the feature itself
2020            // otherwise the callback will take over and announce its client
2021            if ((mFeatureId == FEATURE_OPTIONS_PANEL ||
2022                    mFeatureId == FEATURE_CONTEXT_MENU ||
2023                    mFeatureId == FEATURE_PROGRESS ||
2024                    mFeatureId == FEATURE_INDETERMINATE_PROGRESS)
2025                    && getChildCount() == 1) {
2026                getChildAt(0).sendAccessibilityEvent(eventType);
2027            } else {
2028                super.sendAccessibilityEvent(eventType);
2029            }
2030        }
2031
2032        @Override
2033        public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
2034            final Callback cb = getCallback();
2035            if (cb != null && !isDestroyed()) {
2036                if (cb.dispatchPopulateAccessibilityEvent(event)) {
2037                    return true;
2038                }
2039            }
2040            return super.dispatchPopulateAccessibilityEvent(event);
2041        }
2042
2043        @Override
2044        protected boolean setFrame(int l, int t, int r, int b) {
2045            boolean changed = super.setFrame(l, t, r, b);
2046            if (changed) {
2047                final Rect drawingBounds = mDrawingBounds;
2048                getDrawingRect(drawingBounds);
2049
2050                Drawable fg = getForeground();
2051                if (fg != null) {
2052                    final Rect frameOffsets = mFrameOffsets;
2053                    drawingBounds.left += frameOffsets.left;
2054                    drawingBounds.top += frameOffsets.top;
2055                    drawingBounds.right -= frameOffsets.right;
2056                    drawingBounds.bottom -= frameOffsets.bottom;
2057                    fg.setBounds(drawingBounds);
2058                    final Rect framePadding = mFramePadding;
2059                    drawingBounds.left += framePadding.left - frameOffsets.left;
2060                    drawingBounds.top += framePadding.top - frameOffsets.top;
2061                    drawingBounds.right -= framePadding.right - frameOffsets.right;
2062                    drawingBounds.bottom -= framePadding.bottom - frameOffsets.bottom;
2063                }
2064
2065                Drawable bg = getBackground();
2066                if (bg != null) {
2067                    bg.setBounds(drawingBounds);
2068                }
2069
2070                if (SWEEP_OPEN_MENU) {
2071                    if (mMenuBackground == null && mFeatureId < 0
2072                            && getAttributes().height
2073                            == WindowManager.LayoutParams.MATCH_PARENT) {
2074                        mMenuBackground = getContext().getResources().getDrawable(
2075                                com.android.internal.R.drawable.menu_background);
2076                    }
2077                    if (mMenuBackground != null) {
2078                        mMenuBackground.setBounds(drawingBounds.left,
2079                                drawingBounds.bottom-6, drawingBounds.right,
2080                                drawingBounds.bottom+20);
2081                    }
2082                }
2083            }
2084            return changed;
2085        }
2086
2087        @Override
2088        protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
2089            final DisplayMetrics metrics = getContext().getResources().getDisplayMetrics();
2090            final boolean isPortrait = metrics.widthPixels < metrics.heightPixels;
2091
2092            final int widthMode = getMode(widthMeasureSpec);
2093
2094            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
2095
2096            int width = getMeasuredWidth();
2097            boolean measure = false;
2098
2099            widthMeasureSpec = MeasureSpec.makeMeasureSpec(width, EXACTLY);
2100
2101            final TypedValue tv = isPortrait ? mMinWidthMinor : mMinWidthMajor;
2102
2103            if (widthMode == AT_MOST && tv.type != TypedValue.TYPE_NULL) {
2104                final int min;
2105                if (tv.type == TypedValue.TYPE_DIMENSION) {
2106                    min = (int)tv.getDimension(metrics);
2107                } else if (tv.type == TypedValue.TYPE_FRACTION) {
2108                    min = (int)tv.getFraction(metrics.widthPixels, metrics.widthPixels);
2109                } else {
2110                    min = 0;
2111                }
2112
2113                if (width < min) {
2114                    widthMeasureSpec = MeasureSpec.makeMeasureSpec(min, EXACTLY);
2115                    measure = true;
2116                }
2117            }
2118
2119            // TODO: Support height?
2120
2121            if (measure) {
2122                super.onMeasure(widthMeasureSpec, heightMeasureSpec);
2123            }
2124        }
2125
2126        @Override
2127        public void draw(Canvas canvas) {
2128            super.draw(canvas);
2129
2130            if (mMenuBackground != null) {
2131                mMenuBackground.draw(canvas);
2132            }
2133        }
2134
2135
2136        @Override
2137        public boolean showContextMenuForChild(View originalView) {
2138            // Reuse the context menu builder
2139            if (mContextMenu == null) {
2140                mContextMenu = new ContextMenuBuilder(getContext());
2141                mContextMenu.setCallback(mContextMenuCallback);
2142            } else {
2143                mContextMenu.clearAll();
2144            }
2145
2146            final MenuDialogHelper helper = mContextMenu.show(originalView,
2147                    originalView.getWindowToken());
2148            if (helper != null) {
2149                helper.setPresenterCallback(mContextMenuCallback);
2150            }
2151            mContextMenuHelper = helper;
2152            return helper != null;
2153        }
2154
2155        @Override
2156        public ActionMode startActionModeForChild(View originalView,
2157                ActionMode.Callback callback) {
2158            // originalView can be used here to be sure that we don't obscure
2159            // relevant content with the context mode UI.
2160            return startActionMode(callback);
2161        }
2162
2163        @Override
2164        public ActionMode startActionMode(ActionMode.Callback callback) {
2165            if (mActionMode != null) {
2166                mActionMode.finish();
2167            }
2168
2169            final ActionMode.Callback wrappedCallback = new ActionModeCallbackWrapper(callback);
2170            ActionMode mode = null;
2171            if (getCallback() != null && !isDestroyed()) {
2172                try {
2173                    mode = getCallback().onWindowStartingActionMode(wrappedCallback);
2174                } catch (AbstractMethodError ame) {
2175                    // Older apps might not implement this callback method.
2176                }
2177            }
2178            if (mode != null) {
2179                mActionMode = mode;
2180            } else {
2181                if (mActionModeView == null) {
2182                    if (isFloating()) {
2183                        mActionModeView = new ActionBarContextView(mContext);
2184                        mActionModePopup = new PopupWindow(mContext, null,
2185                                com.android.internal.R.attr.actionModePopupWindowStyle);
2186                        mActionModePopup.setLayoutInScreenEnabled(true);
2187                        mActionModePopup.setLayoutInsetDecor(true);
2188                        mActionModePopup.setWindowLayoutType(
2189                                WindowManager.LayoutParams.TYPE_APPLICATION);
2190                        mActionModePopup.setContentView(mActionModeView);
2191                        mActionModePopup.setWidth(MATCH_PARENT);
2192
2193                        TypedValue heightValue = new TypedValue();
2194                        mContext.getTheme().resolveAttribute(
2195                                com.android.internal.R.attr.actionBarSize, heightValue, true);
2196                        final int height = TypedValue.complexToDimensionPixelSize(heightValue.data,
2197                                mContext.getResources().getDisplayMetrics());
2198                        mActionModeView.setContentHeight(height);
2199                        mActionModePopup.setHeight(WRAP_CONTENT);
2200                        mShowActionModePopup = new Runnable() {
2201                            public void run() {
2202                                mActionModePopup.showAtLocation(
2203                                        mActionModeView.getApplicationWindowToken(),
2204                                        Gravity.TOP | Gravity.FILL_HORIZONTAL, 0, 0);
2205                            }
2206                        };
2207                    } else {
2208                        ViewStub stub = (ViewStub) findViewById(
2209                                com.android.internal.R.id.action_mode_bar_stub);
2210                        if (stub != null) {
2211                            mActionModeView = (ActionBarContextView) stub.inflate();
2212                        }
2213                    }
2214                }
2215
2216                if (mActionModeView != null) {
2217                    mActionModeView.killMode();
2218                    mode = new StandaloneActionMode(getContext(), mActionModeView, wrappedCallback,
2219                            mActionModePopup == null);
2220                    if (callback.onCreateActionMode(mode, mode.getMenu())) {
2221                        mode.invalidate();
2222                        mActionModeView.initForMode(mode);
2223                        mActionModeView.setVisibility(View.VISIBLE);
2224                        mActionMode = mode;
2225                        if (mActionModePopup != null) {
2226                            post(mShowActionModePopup);
2227                        }
2228                        mActionModeView.sendAccessibilityEvent(
2229                                AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
2230                    } else {
2231                        mActionMode = null;
2232                    }
2233                }
2234            }
2235            if (mActionMode != null && getCallback() != null && !isDestroyed()) {
2236                try {
2237                    getCallback().onActionModeStarted(mActionMode);
2238                } catch (AbstractMethodError ame) {
2239                    // Older apps might not implement this callback method.
2240                }
2241            }
2242            return mActionMode;
2243        }
2244
2245        public void startChanging() {
2246            mChanging = true;
2247        }
2248
2249        public void finishChanging() {
2250            mChanging = false;
2251            drawableChanged();
2252        }
2253
2254        public void setWindowBackground(Drawable drawable) {
2255            if (getBackground() != drawable) {
2256                setBackgroundDrawable(drawable);
2257                if (drawable != null) {
2258                    drawable.getPadding(mBackgroundPadding);
2259                } else {
2260                    mBackgroundPadding.setEmpty();
2261                }
2262                drawableChanged();
2263            }
2264        }
2265
2266        @Override
2267        public void setBackgroundDrawable(Drawable d) {
2268            super.setBackgroundDrawable(d);
2269            if (getWindowToken() != null) {
2270                updateWindowResizeState();
2271            }
2272        }
2273
2274        public void setWindowFrame(Drawable drawable) {
2275            if (getForeground() != drawable) {
2276                setForeground(drawable);
2277                if (drawable != null) {
2278                    drawable.getPadding(mFramePadding);
2279                } else {
2280                    mFramePadding.setEmpty();
2281                }
2282                drawableChanged();
2283            }
2284        }
2285
2286        @Override
2287        protected boolean fitSystemWindows(Rect insets) {
2288            mFrameOffsets.set(insets);
2289            if (getForeground() != null) {
2290                drawableChanged();
2291            }
2292            return super.fitSystemWindows(insets);
2293        }
2294
2295        private void drawableChanged() {
2296            if (mChanging) {
2297                return;
2298            }
2299
2300            setPadding(mFramePadding.left + mBackgroundPadding.left, mFramePadding.top
2301                    + mBackgroundPadding.top, mFramePadding.right + mBackgroundPadding.right,
2302                    mFramePadding.bottom + mBackgroundPadding.bottom);
2303            requestLayout();
2304            invalidate();
2305
2306            int opacity = PixelFormat.OPAQUE;
2307
2308            // Note: if there is no background, we will assume opaque. The
2309            // common case seems to be that an application sets there to be
2310            // no background so it can draw everything itself. For that,
2311            // we would like to assume OPAQUE and let the app force it to
2312            // the slower TRANSLUCENT mode if that is really what it wants.
2313            Drawable bg = getBackground();
2314            Drawable fg = getForeground();
2315            if (bg != null) {
2316                if (fg == null) {
2317                    opacity = bg.getOpacity();
2318                } else if (mFramePadding.left <= 0 && mFramePadding.top <= 0
2319                        && mFramePadding.right <= 0 && mFramePadding.bottom <= 0) {
2320                    // If the frame padding is zero, then we can be opaque
2321                    // if either the frame -or- the background is opaque.
2322                    int fop = fg.getOpacity();
2323                    int bop = bg.getOpacity();
2324                    if (false)
2325                        Log.v(TAG, "Background opacity: " + bop + ", Frame opacity: " + fop);
2326                    if (fop == PixelFormat.OPAQUE || bop == PixelFormat.OPAQUE) {
2327                        opacity = PixelFormat.OPAQUE;
2328                    } else if (fop == PixelFormat.UNKNOWN) {
2329                        opacity = bop;
2330                    } else if (bop == PixelFormat.UNKNOWN) {
2331                        opacity = fop;
2332                    } else {
2333                        opacity = Drawable.resolveOpacity(fop, bop);
2334                    }
2335                } else {
2336                    // For now we have to assume translucent if there is a
2337                    // frame with padding... there is no way to tell if the
2338                    // frame and background together will draw all pixels.
2339                    if (false)
2340                        Log.v(TAG, "Padding: " + mFramePadding);
2341                    opacity = PixelFormat.TRANSLUCENT;
2342                }
2343            }
2344
2345            if (false)
2346                Log.v(TAG, "Background: " + bg + ", Frame: " + fg);
2347            if (false)
2348                Log.v(TAG, "Selected default opacity: " + opacity);
2349
2350            mDefaultOpacity = opacity;
2351            if (mFeatureId < 0) {
2352                setDefaultWindowFormat(opacity);
2353            }
2354        }
2355
2356        @Override
2357        public void onWindowFocusChanged(boolean hasWindowFocus) {
2358            super.onWindowFocusChanged(hasWindowFocus);
2359
2360            // If the user is chording a menu shortcut, release the chord since
2361            // this window lost focus
2362            if (!hasWindowFocus && mPanelChordingKey != 0) {
2363                closePanel(FEATURE_OPTIONS_PANEL);
2364            }
2365
2366            final Callback cb = getCallback();
2367            if (cb != null && !isDestroyed() && mFeatureId < 0) {
2368                cb.onWindowFocusChanged(hasWindowFocus);
2369            }
2370        }
2371
2372        void updateWindowResizeState() {
2373            Drawable bg = getBackground();
2374            hackTurnOffWindowResizeAnim(bg == null || bg.getOpacity()
2375                    != PixelFormat.OPAQUE);
2376        }
2377
2378        @Override
2379        protected void onAttachedToWindow() {
2380            super.onAttachedToWindow();
2381
2382            updateWindowResizeState();
2383
2384            final Callback cb = getCallback();
2385            if (cb != null && !isDestroyed() && mFeatureId < 0) {
2386                cb.onAttachedToWindow();
2387            }
2388
2389            if (mFeatureId == -1) {
2390                /*
2391                 * The main window has been attached, try to restore any panels
2392                 * that may have been open before. This is called in cases where
2393                 * an activity is being killed for configuration change and the
2394                 * menu was open. When the activity is recreated, the menu
2395                 * should be shown again.
2396                 */
2397                openPanelsAfterRestore();
2398            }
2399        }
2400
2401        @Override
2402        protected void onDetachedFromWindow() {
2403            super.onDetachedFromWindow();
2404
2405            final Callback cb = getCallback();
2406            if (cb != null && mFeatureId < 0) {
2407                cb.onDetachedFromWindow();
2408            }
2409
2410            if (mActionBar != null) {
2411                mActionBar.dismissPopupMenus();
2412            }
2413
2414            if (mActionModePopup != null) {
2415                removeCallbacks(mShowActionModePopup);
2416                if (mActionModePopup.isShowing()) {
2417                    mActionModePopup.dismiss();
2418                }
2419                mActionModePopup = null;
2420            }
2421
2422            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
2423            if (st != null && st.menu != null && mFeatureId < 0) {
2424                st.menu.close();
2425            }
2426        }
2427
2428        @Override
2429        public void onCloseSystemDialogs(String reason) {
2430            if (mFeatureId >= 0) {
2431                closeAllPanels();
2432            }
2433        }
2434
2435        public android.view.SurfaceHolder.Callback2 willYouTakeTheSurface() {
2436            return mFeatureId < 0 ? mTakeSurfaceCallback : null;
2437        }
2438
2439        public InputQueue.Callback willYouTakeTheInputQueue() {
2440            return mFeatureId < 0 ? mTakeInputQueueCallback : null;
2441        }
2442
2443        public void setSurfaceType(int type) {
2444            PhoneWindow.this.setType(type);
2445        }
2446
2447        public void setSurfaceFormat(int format) {
2448            PhoneWindow.this.setFormat(format);
2449        }
2450
2451        public void setSurfaceKeepScreenOn(boolean keepOn) {
2452            if (keepOn) PhoneWindow.this.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
2453            else PhoneWindow.this.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
2454        }
2455
2456        /**
2457         * Clears out internal reference when the action mode is destroyed.
2458         */
2459        private class ActionModeCallbackWrapper implements ActionMode.Callback {
2460            private ActionMode.Callback mWrapped;
2461
2462            public ActionModeCallbackWrapper(ActionMode.Callback wrapped) {
2463                mWrapped = wrapped;
2464            }
2465
2466            public boolean onCreateActionMode(ActionMode mode, Menu menu) {
2467                return mWrapped.onCreateActionMode(mode, menu);
2468            }
2469
2470            public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
2471                return mWrapped.onPrepareActionMode(mode, menu);
2472            }
2473
2474            public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
2475                return mWrapped.onActionItemClicked(mode, item);
2476            }
2477
2478            public void onDestroyActionMode(ActionMode mode) {
2479                mWrapped.onDestroyActionMode(mode);
2480                if (mActionModePopup != null) {
2481                    removeCallbacks(mShowActionModePopup);
2482                    mActionModePopup.dismiss();
2483                } else if (mActionModeView != null) {
2484                    mActionModeView.setVisibility(GONE);
2485                }
2486                if (mActionModeView != null) {
2487                    mActionModeView.removeAllViews();
2488                }
2489                if (getCallback() != null && !isDestroyed()) {
2490                    try {
2491                        getCallback().onActionModeFinished(mActionMode);
2492                    } catch (AbstractMethodError ame) {
2493                        // Older apps might not implement this callback method.
2494                    }
2495                }
2496                mActionMode = null;
2497            }
2498        }
2499    }
2500
2501    protected DecorView generateDecor() {
2502        return new DecorView(getContext(), -1);
2503    }
2504
2505    protected void setFeatureFromAttrs(int featureId, TypedArray attrs,
2506            int drawableAttr, int alphaAttr) {
2507        Drawable d = attrs.getDrawable(drawableAttr);
2508        if (d != null) {
2509            requestFeature(featureId);
2510            setFeatureDefaultDrawable(featureId, d);
2511        }
2512        if ((getFeatures() & (1 << featureId)) != 0) {
2513            int alpha = attrs.getInt(alphaAttr, -1);
2514            if (alpha >= 0) {
2515                setFeatureDrawableAlpha(featureId, alpha);
2516            }
2517        }
2518    }
2519
2520    protected ViewGroup generateLayout(DecorView decor) {
2521        // Apply data from current theme.
2522
2523        TypedArray a = getWindowStyle();
2524
2525        if (false) {
2526            System.out.println("From style:");
2527            String s = "Attrs:";
2528            for (int i = 0; i < com.android.internal.R.styleable.Window.length; i++) {
2529                s = s + " " + Integer.toHexString(com.android.internal.R.styleable.Window[i]) + "="
2530                        + a.getString(i);
2531            }
2532            System.out.println(s);
2533        }
2534
2535        mIsFloating = a.getBoolean(com.android.internal.R.styleable.Window_windowIsFloating, false);
2536        int flagsToUpdate = (FLAG_LAYOUT_IN_SCREEN|FLAG_LAYOUT_INSET_DECOR)
2537                & (~getForcedWindowFlags());
2538        if (mIsFloating) {
2539            setLayout(WRAP_CONTENT, WRAP_CONTENT);
2540            setFlags(0, flagsToUpdate);
2541        } else {
2542            setFlags(FLAG_LAYOUT_IN_SCREEN|FLAG_LAYOUT_INSET_DECOR, flagsToUpdate);
2543        }
2544
2545        if (a.getBoolean(com.android.internal.R.styleable.Window_windowNoTitle, false)) {
2546            requestFeature(FEATURE_NO_TITLE);
2547        } else if (a.getBoolean(com.android.internal.R.styleable.Window_windowActionBar, false)) {
2548            // Don't allow an action bar if there is no title.
2549            requestFeature(FEATURE_ACTION_BAR);
2550        }
2551
2552        if (a.getBoolean(com.android.internal.R.styleable.Window_windowActionBarOverlay, false)) {
2553            requestFeature(FEATURE_ACTION_BAR_OVERLAY);
2554        }
2555
2556        if (a.getBoolean(com.android.internal.R.styleable.Window_windowActionModeOverlay, false)) {
2557            requestFeature(FEATURE_ACTION_MODE_OVERLAY);
2558        }
2559
2560        if (a.getBoolean(com.android.internal.R.styleable.Window_windowFullscreen, false)) {
2561            setFlags(FLAG_FULLSCREEN, FLAG_FULLSCREEN&(~getForcedWindowFlags()));
2562        }
2563
2564        if (a.getBoolean(com.android.internal.R.styleable.Window_windowShowWallpaper, false)) {
2565            setFlags(FLAG_SHOW_WALLPAPER, FLAG_SHOW_WALLPAPER&(~getForcedWindowFlags()));
2566        }
2567
2568        if (a.getBoolean(com.android.internal.R.styleable.Window_windowEnableSplitTouch,
2569                getContext().getApplicationInfo().targetSdkVersion
2570                        >= android.os.Build.VERSION_CODES.HONEYCOMB)) {
2571            setFlags(FLAG_SPLIT_TOUCH, FLAG_SPLIT_TOUCH&(~getForcedWindowFlags()));
2572        }
2573
2574        a.getValue(com.android.internal.R.styleable.Window_windowMinWidthMajor, mMinWidthMajor);
2575        a.getValue(com.android.internal.R.styleable.Window_windowMinWidthMinor, mMinWidthMinor);
2576
2577        final Context context = getContext();
2578        final int targetSdk = context.getApplicationInfo().targetSdkVersion;
2579        final boolean targetPreHoneycomb = targetSdk < android.os.Build.VERSION_CODES.HONEYCOMB;
2580        final boolean targetPreIcs = targetSdk < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH;
2581        final boolean targetHcNeedsOptions = context.getResources().getBoolean(
2582                com.android.internal.R.bool.target_honeycomb_needs_options_menu);
2583        final boolean noActionBar = !hasFeature(FEATURE_ACTION_BAR) || hasFeature(FEATURE_NO_TITLE);
2584
2585        if (targetPreHoneycomb || (targetPreIcs && targetHcNeedsOptions && noActionBar)) {
2586            addFlags(WindowManager.LayoutParams.FLAG_NEEDS_MENU_KEY);
2587        } else {
2588            clearFlags(WindowManager.LayoutParams.FLAG_NEEDS_MENU_KEY);
2589        }
2590
2591        if (mAlwaysReadCloseOnTouchAttr || getContext().getApplicationInfo().targetSdkVersion
2592                >= android.os.Build.VERSION_CODES.HONEYCOMB) {
2593            if (a.getBoolean(
2594                    com.android.internal.R.styleable.Window_windowCloseOnTouchOutside,
2595                    false)) {
2596                setCloseOnTouchOutsideIfNotSet(true);
2597            }
2598        }
2599
2600        WindowManager.LayoutParams params = getAttributes();
2601
2602        if (!hasSoftInputMode()) {
2603            params.softInputMode = a.getInt(
2604                    com.android.internal.R.styleable.Window_windowSoftInputMode,
2605                    params.softInputMode);
2606        }
2607
2608        if (a.getBoolean(com.android.internal.R.styleable.Window_backgroundDimEnabled,
2609                mIsFloating)) {
2610            /* All dialogs should have the window dimmed */
2611            if ((getForcedWindowFlags()&WindowManager.LayoutParams.FLAG_DIM_BEHIND) == 0) {
2612                params.flags |= WindowManager.LayoutParams.FLAG_DIM_BEHIND;
2613            }
2614            if (!haveDimAmount()) {
2615                params.dimAmount = a.getFloat(
2616                        android.R.styleable.Window_backgroundDimAmount, 0.5f);
2617            }
2618        }
2619
2620        if (params.windowAnimations == 0) {
2621            params.windowAnimations = a.getResourceId(
2622                    com.android.internal.R.styleable.Window_windowAnimationStyle, 0);
2623        }
2624
2625        // The rest are only done if this window is not embedded; otherwise,
2626        // the values are inherited from our container.
2627        if (getContainer() == null) {
2628            if (mBackgroundDrawable == null) {
2629                if (mBackgroundResource == 0) {
2630                    mBackgroundResource = a.getResourceId(
2631                            com.android.internal.R.styleable.Window_windowBackground, 0);
2632                }
2633                if (mFrameResource == 0) {
2634                    mFrameResource = a.getResourceId(com.android.internal.R.styleable.Window_windowFrame, 0);
2635                }
2636                if (false) {
2637                    System.out.println("Background: "
2638                            + Integer.toHexString(mBackgroundResource) + " Frame: "
2639                            + Integer.toHexString(mFrameResource));
2640                }
2641            }
2642            mTextColor = a.getColor(com.android.internal.R.styleable.Window_textColor, 0xFF000000);
2643        }
2644
2645        // Inflate the window decor.
2646
2647        int layoutResource;
2648        int features = getLocalFeatures();
2649        // System.out.println("Features: 0x" + Integer.toHexString(features));
2650        if ((features & ((1 << FEATURE_LEFT_ICON) | (1 << FEATURE_RIGHT_ICON))) != 0) {
2651            if (mIsFloating) {
2652                TypedValue res = new TypedValue();
2653                getContext().getTheme().resolveAttribute(
2654                        com.android.internal.R.attr.dialogTitleIconsDecorLayout, res, true);
2655                layoutResource = res.resourceId;
2656            } else {
2657                layoutResource = com.android.internal.R.layout.screen_title_icons;
2658            }
2659            // XXX Remove this once action bar supports these features.
2660            removeFeature(FEATURE_ACTION_BAR);
2661            // System.out.println("Title Icons!");
2662        } else if ((features & ((1 << FEATURE_PROGRESS) | (1 << FEATURE_INDETERMINATE_PROGRESS))) != 0
2663                && (features & (1 << FEATURE_ACTION_BAR)) == 0) {
2664            // Special case for a window with only a progress bar (and title).
2665            // XXX Need to have a no-title version of embedded windows.
2666            layoutResource = com.android.internal.R.layout.screen_progress;
2667            // System.out.println("Progress!");
2668        } else if ((features & (1 << FEATURE_CUSTOM_TITLE)) != 0) {
2669            // Special case for a window with a custom title.
2670            // If the window is floating, we need a dialog layout
2671            if (mIsFloating) {
2672                TypedValue res = new TypedValue();
2673                getContext().getTheme().resolveAttribute(
2674                        com.android.internal.R.attr.dialogCustomTitleDecorLayout, res, true);
2675                layoutResource = res.resourceId;
2676            } else {
2677                layoutResource = com.android.internal.R.layout.screen_custom_title;
2678            }
2679            // XXX Remove this once action bar supports these features.
2680            removeFeature(FEATURE_ACTION_BAR);
2681        } else if ((features & (1 << FEATURE_NO_TITLE)) == 0) {
2682            // If no other features and not embedded, only need a title.
2683            // If the window is floating, we need a dialog layout
2684            if (mIsFloating) {
2685                TypedValue res = new TypedValue();
2686                getContext().getTheme().resolveAttribute(
2687                        com.android.internal.R.attr.dialogTitleDecorLayout, res, true);
2688                layoutResource = res.resourceId;
2689            } else if ((features & (1 << FEATURE_ACTION_BAR)) != 0) {
2690                if ((features & (1 << FEATURE_ACTION_BAR_OVERLAY)) != 0) {
2691                    layoutResource = com.android.internal.R.layout.screen_action_bar_overlay;
2692                } else {
2693                    layoutResource = com.android.internal.R.layout.screen_action_bar;
2694                }
2695            } else {
2696                layoutResource = com.android.internal.R.layout.screen_title;
2697            }
2698            // System.out.println("Title!");
2699        } else if ((features & (1 << FEATURE_ACTION_MODE_OVERLAY)) != 0) {
2700            layoutResource = com.android.internal.R.layout.screen_simple_overlay_action_mode;
2701        } else {
2702            // Embedded, so no decoration is needed.
2703            layoutResource = com.android.internal.R.layout.screen_simple;
2704            // System.out.println("Simple!");
2705        }
2706
2707        mDecor.startChanging();
2708
2709        View in = mLayoutInflater.inflate(layoutResource, null);
2710        decor.addView(in, new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));
2711
2712        ViewGroup contentParent = (ViewGroup)findViewById(ID_ANDROID_CONTENT);
2713        if (contentParent == null) {
2714            throw new RuntimeException("Window couldn't find content container view");
2715        }
2716
2717        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
2718            ProgressBar progress = getCircularProgressBar(false);
2719            if (progress != null) {
2720                progress.setIndeterminate(true);
2721            }
2722        }
2723
2724        // Remaining setup -- of background and title -- that only applies
2725        // to top-level windows.
2726        if (getContainer() == null) {
2727            Drawable drawable = mBackgroundDrawable;
2728            if (mBackgroundResource != 0) {
2729                drawable = getContext().getResources().getDrawable(mBackgroundResource);
2730            }
2731            mDecor.setWindowBackground(drawable);
2732            drawable = null;
2733            if (mFrameResource != 0) {
2734                drawable = getContext().getResources().getDrawable(mFrameResource);
2735            }
2736            mDecor.setWindowFrame(drawable);
2737
2738            // System.out.println("Text=" + Integer.toHexString(mTextColor) +
2739            // " Sel=" + Integer.toHexString(mTextSelectedColor) +
2740            // " Title=" + Integer.toHexString(mTitleColor));
2741
2742            if (mTitleColor == 0) {
2743                mTitleColor = mTextColor;
2744            }
2745
2746            if (mTitle != null) {
2747                setTitle(mTitle);
2748            }
2749            setTitleColor(mTitleColor);
2750        }
2751
2752        mDecor.finishChanging();
2753
2754        return contentParent;
2755    }
2756
2757    /** @hide */
2758    public void alwaysReadCloseOnTouchAttr() {
2759        mAlwaysReadCloseOnTouchAttr = true;
2760    }
2761
2762    private void installDecor() {
2763        if (mDecor == null) {
2764            mDecor = generateDecor();
2765            mDecor.setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
2766            mDecor.setIsRootNamespace(true);
2767        }
2768        if (mContentParent == null) {
2769            mContentParent = generateLayout(mDecor);
2770
2771            mTitleView = (TextView)findViewById(com.android.internal.R.id.title);
2772            if (mTitleView != null) {
2773                if ((getLocalFeatures() & (1 << FEATURE_NO_TITLE)) != 0) {
2774                    View titleContainer = findViewById(com.android.internal.R.id.title_container);
2775                    if (titleContainer != null) {
2776                        titleContainer.setVisibility(View.GONE);
2777                    } else {
2778                        mTitleView.setVisibility(View.GONE);
2779                    }
2780                    if (mContentParent instanceof FrameLayout) {
2781                        ((FrameLayout)mContentParent).setForeground(null);
2782                    }
2783                } else {
2784                    mTitleView.setText(mTitle);
2785                }
2786            } else {
2787                mActionBar = (ActionBarView) findViewById(com.android.internal.R.id.action_bar);
2788                if (mActionBar != null) {
2789                    mActionBar.setWindowCallback(getCallback());
2790                    if (mActionBar.getTitle() == null) {
2791                        mActionBar.setWindowTitle(mTitle);
2792                    }
2793                    final int localFeatures = getLocalFeatures();
2794                    if ((localFeatures & (1 << FEATURE_PROGRESS)) != 0) {
2795                        mActionBar.initProgress();
2796                    }
2797                    if ((localFeatures & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
2798                        mActionBar.initIndeterminateProgress();
2799                    }
2800
2801                    boolean splitActionBar = false;
2802                    final boolean splitWhenNarrow =
2803                            (mUiOptions & ActivityInfo.UIOPTION_SPLIT_ACTION_BAR_WHEN_NARROW) != 0;
2804                    if (splitWhenNarrow) {
2805                        splitActionBar = getContext().getResources().getBoolean(
2806                                com.android.internal.R.bool.split_action_bar_is_narrow);
2807                    } else {
2808                        splitActionBar = getWindowStyle().getBoolean(
2809                                com.android.internal.R.styleable.Window_windowSplitActionBar, false);
2810                    }
2811                    final ActionBarContainer splitView = (ActionBarContainer) findViewById(
2812                            com.android.internal.R.id.split_action_bar);
2813                    if (splitView != null) {
2814                        mActionBar.setSplitView(splitView);
2815                        mActionBar.setSplitActionBar(splitActionBar);
2816                        mActionBar.setSplitWhenNarrow(splitWhenNarrow);
2817
2818                        final ActionBarContextView cab = (ActionBarContextView) findViewById(
2819                                com.android.internal.R.id.action_context_bar);
2820                        cab.setSplitView(splitView);
2821                        cab.setSplitActionBar(splitActionBar);
2822                        cab.setSplitWhenNarrow(splitWhenNarrow);
2823                    } else if (splitActionBar) {
2824                        Log.e(TAG, "Requested split action bar with " +
2825                                "incompatible window decor! Ignoring request.");
2826                    }
2827
2828                    // Post the panel invalidate for later; avoid application onCreateOptionsMenu
2829                    // being called in the middle of onCreate or similar.
2830                    mDecor.post(new Runnable() {
2831                        public void run() {
2832                            // Invalidate if the panel menu hasn't been created before this.
2833                            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
2834                            if (!isDestroyed() && (st == null || st.menu == null)) {
2835                                invalidatePanelMenu(FEATURE_ACTION_BAR);
2836                            }
2837                        }
2838                    });
2839                }
2840            }
2841        }
2842    }
2843
2844    private Drawable loadImageURI(Uri uri) {
2845        try {
2846            return Drawable.createFromStream(
2847                    getContext().getContentResolver().openInputStream(uri), null);
2848        } catch (Exception e) {
2849            Log.w(TAG, "Unable to open content: " + uri);
2850        }
2851        return null;
2852    }
2853
2854    private DrawableFeatureState getDrawableState(int featureId, boolean required) {
2855        if ((getFeatures() & (1 << featureId)) == 0) {
2856            if (!required) {
2857                return null;
2858            }
2859            throw new RuntimeException("The feature has not been requested");
2860        }
2861
2862        DrawableFeatureState[] ar;
2863        if ((ar = mDrawables) == null || ar.length <= featureId) {
2864            DrawableFeatureState[] nar = new DrawableFeatureState[featureId + 1];
2865            if (ar != null) {
2866                System.arraycopy(ar, 0, nar, 0, ar.length);
2867            }
2868            mDrawables = ar = nar;
2869        }
2870
2871        DrawableFeatureState st = ar[featureId];
2872        if (st == null) {
2873            ar[featureId] = st = new DrawableFeatureState(featureId);
2874        }
2875        return st;
2876    }
2877
2878    /**
2879     * Gets a panel's state based on its feature ID.
2880     *
2881     * @param featureId The feature ID of the panel.
2882     * @param required Whether the panel is required (if it is required and it
2883     *            isn't in our features, this throws an exception).
2884     * @return The panel state.
2885     */
2886    private PanelFeatureState getPanelState(int featureId, boolean required) {
2887        return getPanelState(featureId, required, null);
2888    }
2889
2890    /**
2891     * Gets a panel's state based on its feature ID.
2892     *
2893     * @param featureId The feature ID of the panel.
2894     * @param required Whether the panel is required (if it is required and it
2895     *            isn't in our features, this throws an exception).
2896     * @param convertPanelState Optional: If the panel state does not exist, use
2897     *            this as the panel state.
2898     * @return The panel state.
2899     */
2900    private PanelFeatureState getPanelState(int featureId, boolean required,
2901            PanelFeatureState convertPanelState) {
2902        if ((getFeatures() & (1 << featureId)) == 0) {
2903            if (!required) {
2904                return null;
2905            }
2906            throw new RuntimeException("The feature has not been requested");
2907        }
2908
2909        PanelFeatureState[] ar;
2910        if ((ar = mPanels) == null || ar.length <= featureId) {
2911            PanelFeatureState[] nar = new PanelFeatureState[featureId + 1];
2912            if (ar != null) {
2913                System.arraycopy(ar, 0, nar, 0, ar.length);
2914            }
2915            mPanels = ar = nar;
2916        }
2917
2918        PanelFeatureState st = ar[featureId];
2919        if (st == null) {
2920            ar[featureId] = st = (convertPanelState != null)
2921                    ? convertPanelState
2922                    : new PanelFeatureState(featureId);
2923        }
2924        return st;
2925    }
2926
2927    @Override
2928    public final void setChildDrawable(int featureId, Drawable drawable) {
2929        DrawableFeatureState st = getDrawableState(featureId, true);
2930        st.child = drawable;
2931        updateDrawable(featureId, st, false);
2932    }
2933
2934    @Override
2935    public final void setChildInt(int featureId, int value) {
2936        updateInt(featureId, value, false);
2937    }
2938
2939    @Override
2940    public boolean isShortcutKey(int keyCode, KeyEvent event) {
2941        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
2942        return st.menu != null && st.menu.isShortcutKey(keyCode, event);
2943    }
2944
2945    private void updateDrawable(int featureId, DrawableFeatureState st, boolean fromResume) {
2946        // Do nothing if the decor is not yet installed... an update will
2947        // need to be forced when we eventually become active.
2948        if (mContentParent == null) {
2949            return;
2950        }
2951
2952        final int featureMask = 1 << featureId;
2953
2954        if ((getFeatures() & featureMask) == 0 && !fromResume) {
2955            return;
2956        }
2957
2958        Drawable drawable = null;
2959        if (st != null) {
2960            drawable = st.child;
2961            if (drawable == null)
2962                drawable = st.local;
2963            if (drawable == null)
2964                drawable = st.def;
2965        }
2966        if ((getLocalFeatures() & featureMask) == 0) {
2967            if (getContainer() != null) {
2968                if (isActive() || fromResume) {
2969                    getContainer().setChildDrawable(featureId, drawable);
2970                }
2971            }
2972        } else if (st != null && (st.cur != drawable || st.curAlpha != st.alpha)) {
2973            // System.out.println("Drawable changed: old=" + st.cur
2974            // + ", new=" + drawable);
2975            st.cur = drawable;
2976            st.curAlpha = st.alpha;
2977            onDrawableChanged(featureId, drawable, st.alpha);
2978        }
2979    }
2980
2981    private void updateInt(int featureId, int value, boolean fromResume) {
2982
2983        // Do nothing if the decor is not yet installed... an update will
2984        // need to be forced when we eventually become active.
2985        if (mContentParent == null) {
2986            return;
2987        }
2988
2989        final int featureMask = 1 << featureId;
2990
2991        if ((getFeatures() & featureMask) == 0 && !fromResume) {
2992            return;
2993        }
2994
2995        if ((getLocalFeatures() & featureMask) == 0) {
2996            if (getContainer() != null) {
2997                getContainer().setChildInt(featureId, value);
2998            }
2999        } else {
3000            onIntChanged(featureId, value);
3001        }
3002    }
3003
3004    private ImageView getLeftIconView() {
3005        if (mLeftIconView != null) {
3006            return mLeftIconView;
3007        }
3008        if (mContentParent == null) {
3009            installDecor();
3010        }
3011        return (mLeftIconView = (ImageView)findViewById(com.android.internal.R.id.left_icon));
3012    }
3013
3014    private ProgressBar getCircularProgressBar(boolean shouldInstallDecor) {
3015        if (mCircularProgressBar != null) {
3016            return mCircularProgressBar;
3017        }
3018        if (mContentParent == null && shouldInstallDecor) {
3019            installDecor();
3020        }
3021        mCircularProgressBar = (ProgressBar) findViewById(com.android.internal.R.id.progress_circular);
3022        if (mCircularProgressBar != null) {
3023            mCircularProgressBar.setVisibility(View.INVISIBLE);
3024        }
3025        return mCircularProgressBar;
3026    }
3027
3028    private ProgressBar getHorizontalProgressBar(boolean shouldInstallDecor) {
3029        if (mHorizontalProgressBar != null) {
3030            return mHorizontalProgressBar;
3031        }
3032        if (mContentParent == null && shouldInstallDecor) {
3033            installDecor();
3034        }
3035        mHorizontalProgressBar = (ProgressBar) findViewById(com.android.internal.R.id.progress_horizontal);
3036        if (mHorizontalProgressBar != null) {
3037            mHorizontalProgressBar.setVisibility(View.INVISIBLE);
3038        }
3039        return mHorizontalProgressBar;
3040    }
3041
3042    private ImageView getRightIconView() {
3043        if (mRightIconView != null) {
3044            return mRightIconView;
3045        }
3046        if (mContentParent == null) {
3047            installDecor();
3048        }
3049        return (mRightIconView = (ImageView)findViewById(com.android.internal.R.id.right_icon));
3050    }
3051
3052    /**
3053     * Helper method for calling the {@link Callback#onPanelClosed(int, Menu)}
3054     * callback. This method will grab whatever extra state is needed for the
3055     * callback that isn't given in the parameters. If the panel is not open,
3056     * this will not perform the callback.
3057     *
3058     * @param featureId Feature ID of the panel that was closed. Must be given.
3059     * @param panel Panel that was closed. Optional but useful if there is no
3060     *            menu given.
3061     * @param menu The menu that was closed. Optional, but give if you have.
3062     */
3063    private void callOnPanelClosed(int featureId, PanelFeatureState panel, Menu menu) {
3064        final Callback cb = getCallback();
3065        if (cb == null)
3066            return;
3067
3068        // Try to get a menu
3069        if (menu == null) {
3070            // Need a panel to grab the menu, so try to get that
3071            if (panel == null) {
3072                if ((featureId >= 0) && (featureId < mPanels.length)) {
3073                    panel = mPanels[featureId];
3074                }
3075            }
3076
3077            if (panel != null) {
3078                // menu still may be null, which is okay--we tried our best
3079                menu = panel.menu;
3080            }
3081        }
3082
3083        // If the panel is not open, do not callback
3084        if ((panel != null) && (!panel.isOpen))
3085            return;
3086
3087        if (!isDestroyed()) {
3088            cb.onPanelClosed(featureId, menu);
3089        }
3090    }
3091
3092    /**
3093     * Helper method for adding launch-search to most applications. Opens the
3094     * search window using default settings.
3095     *
3096     * @return true if search window opened
3097     */
3098    private boolean launchDefaultSearch() {
3099        final Callback cb = getCallback();
3100        if (cb == null || isDestroyed()) {
3101            return false;
3102        } else {
3103            sendCloseSystemWindows("search");
3104            return cb.onSearchRequested();
3105        }
3106    }
3107
3108    @Override
3109    public void setVolumeControlStream(int streamType) {
3110        mVolumeControlStreamType = streamType;
3111    }
3112
3113    @Override
3114    public int getVolumeControlStream() {
3115        return mVolumeControlStreamType;
3116    }
3117
3118    private static final class DrawableFeatureState {
3119        DrawableFeatureState(int _featureId) {
3120            featureId = _featureId;
3121        }
3122
3123        final int featureId;
3124
3125        int resid;
3126
3127        Uri uri;
3128
3129        Drawable local;
3130
3131        Drawable child;
3132
3133        Drawable def;
3134
3135        Drawable cur;
3136
3137        int alpha = 255;
3138
3139        int curAlpha = 255;
3140    }
3141
3142    private static final class PanelFeatureState {
3143
3144        /** Feature ID for this panel. */
3145        int featureId;
3146
3147        // Information pulled from the style for this panel.
3148
3149        int background;
3150
3151        /** The background when the panel spans the entire available width. */
3152        int fullBackground;
3153
3154        int gravity;
3155
3156        int x;
3157
3158        int y;
3159
3160        int windowAnimations;
3161
3162        /** Dynamic state of the panel. */
3163        DecorView decorView;
3164
3165        /** The panel that was returned by onCreatePanelView(). */
3166        View createdPanelView;
3167
3168        /** The panel that we are actually showing. */
3169        View shownPanelView;
3170
3171        /** Use {@link #setMenu} to set this. */
3172        MenuBuilder menu;
3173
3174        IconMenuPresenter iconMenuPresenter;
3175        ListMenuPresenter listMenuPresenter;
3176
3177        /** true if this menu will show in single-list compact mode */
3178        boolean isCompact;
3179
3180        /** Theme resource ID for list elements of the panel menu */
3181        int listPresenterTheme;
3182
3183        /**
3184         * Whether the panel has been prepared (see
3185         * {@link PhoneWindow#preparePanel}).
3186         */
3187        boolean isPrepared;
3188
3189        /**
3190         * Whether an item's action has been performed. This happens in obvious
3191         * scenarios (user clicks on menu item), but can also happen with
3192         * chording menu+(shortcut key).
3193         */
3194        boolean isHandled;
3195
3196        boolean isOpen;
3197
3198        /**
3199         * True if the menu is in expanded mode, false if the menu is in icon
3200         * mode
3201         */
3202        boolean isInExpandedMode;
3203
3204        public boolean qwertyMode;
3205
3206        boolean refreshDecorView;
3207
3208        boolean refreshMenuContent;
3209
3210        boolean wasLastOpen;
3211
3212        boolean wasLastExpanded;
3213
3214        /**
3215         * Contains the state of the menu when told to freeze.
3216         */
3217        Bundle frozenMenuState;
3218
3219        /**
3220         * Contains the state of associated action views when told to freeze.
3221         * These are saved across invalidations.
3222         */
3223        Bundle frozenActionViewState;
3224
3225        PanelFeatureState(int featureId) {
3226            this.featureId = featureId;
3227
3228            refreshDecorView = false;
3229        }
3230
3231        public boolean isInListMode() {
3232            return isInExpandedMode || isCompact;
3233        }
3234
3235        public boolean hasPanelItems() {
3236            if (shownPanelView == null) return false;
3237            if (createdPanelView != null) return true;
3238
3239            if (isCompact || isInExpandedMode) {
3240                return listMenuPresenter.getAdapter().getCount() > 0;
3241            } else {
3242                return ((ViewGroup) shownPanelView).getChildCount() > 0;
3243            }
3244        }
3245
3246        /**
3247         * Unregister and free attached MenuPresenters. They will be recreated as needed.
3248         */
3249        public void clearMenuPresenters() {
3250            if (menu != null) {
3251                menu.removeMenuPresenter(iconMenuPresenter);
3252                menu.removeMenuPresenter(listMenuPresenter);
3253            }
3254            iconMenuPresenter = null;
3255            listMenuPresenter = null;
3256        }
3257
3258        void setStyle(Context context) {
3259            TypedArray a = context.obtainStyledAttributes(com.android.internal.R.styleable.Theme);
3260            background = a.getResourceId(
3261                    com.android.internal.R.styleable.Theme_panelBackground, 0);
3262            fullBackground = a.getResourceId(
3263                    com.android.internal.R.styleable.Theme_panelFullBackground, 0);
3264            windowAnimations = a.getResourceId(
3265                    com.android.internal.R.styleable.Theme_windowAnimationStyle, 0);
3266            isCompact = a.getBoolean(
3267                    com.android.internal.R.styleable.Theme_panelMenuIsCompact, false);
3268            listPresenterTheme = a.getResourceId(
3269                    com.android.internal.R.styleable.Theme_panelMenuListTheme,
3270                    com.android.internal.R.style.Theme_ExpandedMenu);
3271            a.recycle();
3272        }
3273
3274        void setMenu(MenuBuilder menu) {
3275            if (menu == this.menu) return;
3276
3277            if (this.menu != null) {
3278                this.menu.removeMenuPresenter(iconMenuPresenter);
3279                this.menu.removeMenuPresenter(listMenuPresenter);
3280            }
3281            this.menu = menu;
3282            if (menu != null) {
3283                if (iconMenuPresenter != null) menu.addMenuPresenter(iconMenuPresenter);
3284                if (listMenuPresenter != null) menu.addMenuPresenter(listMenuPresenter);
3285            }
3286        }
3287
3288        MenuView getListMenuView(Context context, MenuPresenter.Callback cb) {
3289            if (menu == null) return null;
3290
3291            if (!isCompact) {
3292                getIconMenuView(context, cb); // Need this initialized to know where our offset goes
3293            }
3294
3295            if (listMenuPresenter == null) {
3296                listMenuPresenter = new ListMenuPresenter(
3297                        com.android.internal.R.layout.list_menu_item_layout, listPresenterTheme);
3298                listMenuPresenter.setCallback(cb);
3299                listMenuPresenter.setId(com.android.internal.R.id.list_menu_presenter);
3300                menu.addMenuPresenter(listMenuPresenter);
3301            }
3302
3303            if (iconMenuPresenter != null) {
3304                listMenuPresenter.setItemIndexOffset(
3305                        iconMenuPresenter.getNumActualItemsShown());
3306            }
3307            MenuView result = listMenuPresenter.getMenuView(decorView);
3308
3309            return result;
3310        }
3311
3312        MenuView getIconMenuView(Context context, MenuPresenter.Callback cb) {
3313            if (menu == null) return null;
3314
3315            if (iconMenuPresenter == null) {
3316                iconMenuPresenter = new IconMenuPresenter(context);
3317                iconMenuPresenter.setCallback(cb);
3318                iconMenuPresenter.setId(com.android.internal.R.id.icon_menu_presenter);
3319                menu.addMenuPresenter(iconMenuPresenter);
3320            }
3321
3322            MenuView result = iconMenuPresenter.getMenuView(decorView);
3323
3324            return result;
3325        }
3326
3327        Parcelable onSaveInstanceState() {
3328            SavedState savedState = new SavedState();
3329            savedState.featureId = featureId;
3330            savedState.isOpen = isOpen;
3331            savedState.isInExpandedMode = isInExpandedMode;
3332
3333            if (menu != null) {
3334                savedState.menuState = new Bundle();
3335                menu.savePresenterStates(savedState.menuState);
3336            }
3337
3338            return savedState;
3339        }
3340
3341        void onRestoreInstanceState(Parcelable state) {
3342            SavedState savedState = (SavedState) state;
3343            featureId = savedState.featureId;
3344            wasLastOpen = savedState.isOpen;
3345            wasLastExpanded = savedState.isInExpandedMode;
3346            frozenMenuState = savedState.menuState;
3347
3348            /*
3349             * A LocalActivityManager keeps the same instance of this class around.
3350             * The first time the menu is being shown after restoring, the
3351             * Activity.onCreateOptionsMenu should be called. But, if it is the
3352             * same instance then menu != null and we won't call that method.
3353             * We clear any cached views here. The caller should invalidatePanelMenu.
3354             */
3355            createdPanelView = null;
3356            shownPanelView = null;
3357            decorView = null;
3358        }
3359
3360        void applyFrozenState() {
3361            if (menu != null && frozenMenuState != null) {
3362                menu.restorePresenterStates(frozenMenuState);
3363                frozenMenuState = null;
3364            }
3365        }
3366
3367        private static class SavedState implements Parcelable {
3368            int featureId;
3369            boolean isOpen;
3370            boolean isInExpandedMode;
3371            Bundle menuState;
3372
3373            public int describeContents() {
3374                return 0;
3375            }
3376
3377            public void writeToParcel(Parcel dest, int flags) {
3378                dest.writeInt(featureId);
3379                dest.writeInt(isOpen ? 1 : 0);
3380                dest.writeInt(isInExpandedMode ? 1 : 0);
3381
3382                if (isOpen) {
3383                    dest.writeBundle(menuState);
3384                }
3385            }
3386
3387            private static SavedState readFromParcel(Parcel source) {
3388                SavedState savedState = new SavedState();
3389                savedState.featureId = source.readInt();
3390                savedState.isOpen = source.readInt() == 1;
3391                savedState.isInExpandedMode = source.readInt() == 1;
3392
3393                if (savedState.isOpen) {
3394                    savedState.menuState = source.readBundle();
3395                }
3396
3397                return savedState;
3398            }
3399
3400            public static final Parcelable.Creator<SavedState> CREATOR
3401                    = new Parcelable.Creator<SavedState>() {
3402                public SavedState createFromParcel(Parcel in) {
3403                    return readFromParcel(in);
3404                }
3405
3406                public SavedState[] newArray(int size) {
3407                    return new SavedState[size];
3408                }
3409            };
3410        }
3411
3412    }
3413
3414    static class RotationWatcher extends IRotationWatcher.Stub {
3415        private Handler mHandler;
3416        private final Runnable mRotationChanged = new Runnable() {
3417            public void run() {
3418                dispatchRotationChanged();
3419            }
3420        };
3421        private final ArrayList<WeakReference<PhoneWindow>> mWindows =
3422                new ArrayList<WeakReference<PhoneWindow>>();
3423        private boolean mIsWatching;
3424
3425        @Override
3426        public void onRotationChanged(int rotation) throws RemoteException {
3427            mHandler.post(mRotationChanged);
3428        }
3429
3430        public void addWindow(PhoneWindow phoneWindow) {
3431            synchronized (mWindows) {
3432                if (!mIsWatching) {
3433                    try {
3434                        WindowManagerHolder.sWindowManager.watchRotation(this);
3435                        mHandler = new Handler();
3436                        mIsWatching = true;
3437                    } catch (RemoteException ex) {
3438                        Log.e(TAG, "Couldn't start watching for device rotation", ex);
3439                    }
3440                }
3441                mWindows.add(new WeakReference<PhoneWindow>(phoneWindow));
3442            }
3443        }
3444
3445        public void removeWindow(PhoneWindow phoneWindow) {
3446            synchronized (mWindows) {
3447                int i = 0;
3448                while (i < mWindows.size()) {
3449                    final WeakReference<PhoneWindow> ref = mWindows.get(i);
3450                    final PhoneWindow win = ref.get();
3451                    if (win == null || win == phoneWindow) {
3452                        mWindows.remove(i);
3453                    } else {
3454                        i++;
3455                    }
3456                }
3457            }
3458        }
3459
3460        void dispatchRotationChanged() {
3461            synchronized (mWindows) {
3462                int i = 0;
3463                while (i < mWindows.size()) {
3464                    final WeakReference<PhoneWindow> ref = mWindows.get(i);
3465                    final PhoneWindow win = ref.get();
3466                    if (win != null) {
3467                        win.onOptionsPanelRotationChanged();
3468                        i++;
3469                    } else {
3470                        mWindows.remove(i);
3471                    }
3472                }
3473            }
3474        }
3475    }
3476
3477    /**
3478     * Simple implementation of MenuBuilder.Callback that:
3479     * <li> Opens a submenu when selected.
3480     * <li> Calls back to the callback's onMenuItemSelected when an item is
3481     * selected.
3482     */
3483    private final class DialogMenuCallback implements MenuBuilder.Callback, MenuPresenter.Callback {
3484        private int mFeatureId;
3485        private MenuDialogHelper mSubMenuHelper;
3486
3487        public DialogMenuCallback(int featureId) {
3488            mFeatureId = featureId;
3489        }
3490
3491        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
3492            if (menu.getRootMenu() != menu) {
3493                onCloseSubMenu(menu);
3494            }
3495
3496            if (allMenusAreClosing) {
3497                Callback callback = getCallback();
3498                if (callback != null && !isDestroyed()) {
3499                    callback.onPanelClosed(mFeatureId, menu);
3500                }
3501
3502                if (menu == mContextMenu) {
3503                    dismissContextMenu();
3504                }
3505
3506                // Dismiss the submenu, if it is showing
3507                if (mSubMenuHelper != null) {
3508                    mSubMenuHelper.dismiss();
3509                    mSubMenuHelper = null;
3510                }
3511            }
3512        }
3513
3514        public void onCloseSubMenu(MenuBuilder menu) {
3515            Callback callback = getCallback();
3516            if (callback != null && !isDestroyed()) {
3517                callback.onPanelClosed(mFeatureId, menu.getRootMenu());
3518            }
3519        }
3520
3521        public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
3522            Callback callback = getCallback();
3523            return (callback != null && !isDestroyed())
3524                    && callback.onMenuItemSelected(mFeatureId, item);
3525        }
3526
3527        public void onMenuModeChange(MenuBuilder menu) {
3528        }
3529
3530        public boolean onOpenSubMenu(MenuBuilder subMenu) {
3531            if (subMenu == null) return false;
3532
3533            // Set a simple callback for the submenu
3534            subMenu.setCallback(this);
3535
3536            // The window manager will give us a valid window token
3537            mSubMenuHelper = new MenuDialogHelper(subMenu);
3538            mSubMenuHelper.show(null);
3539
3540            return true;
3541        }
3542    }
3543
3544    void sendCloseSystemWindows() {
3545        PhoneWindowManager.sendCloseSystemWindows(getContext(), null);
3546    }
3547
3548    void sendCloseSystemWindows(String reason) {
3549        PhoneWindowManager.sendCloseSystemWindows(getContext(), reason);
3550    }
3551}
3552