PhoneWindow.java revision f8419a0299680ed580975b0fcb758990b4367db8
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        if ((mPreparedPanel != null) && (mPreparedPanel != st)) {
356            // Another Panel is prepared and possibly open, so close it
357            closePanel(mPreparedPanel, false);
358        }
359
360        final Callback cb = getCallback();
361
362        if (cb != null) {
363            st.createdPanelView = cb.onCreatePanelView(st.featureId);
364        }
365
366        if (st.createdPanelView == null) {
367            // Init the panel state's menu--return false if init failed
368            if (st.menu == null || st.refreshMenuContent) {
369                if (st.menu == null) {
370                    if (!initializePanelMenu(st) || (st.menu == null)) {
371                        return false;
372                    }
373                }
374
375                if (mActionBar != null) {
376                    if (mActionMenuPresenterCallback == null) {
377                        mActionMenuPresenterCallback = new ActionMenuPresenterCallback();
378                    }
379                    mActionBar.setMenu(st.menu, mActionMenuPresenterCallback);
380                }
381
382                // Call callback, and return if it doesn't want to display menu.
383
384                // Creating the panel menu will involve a lot of manipulation;
385                // don't dispatch change events to presenters until we're done.
386                st.menu.stopDispatchingItemsChanged();
387                if ((cb == null) || !cb.onCreatePanelMenu(st.featureId, st.menu)) {
388                    // Ditch the menu created above
389                    st.setMenu(null);
390
391                    if (mActionBar != null) {
392                        // Don't show it in the action bar either
393                        mActionBar.setMenu(null, mActionMenuPresenterCallback);
394                    }
395
396                    return false;
397                }
398
399                st.refreshMenuContent = false;
400            }
401
402            // Callback and return if the callback does not want to show the menu
403
404            // Preparing the panel menu can involve a lot of manipulation;
405            // don't dispatch change events to presenters until we're done.
406            st.menu.stopDispatchingItemsChanged();
407
408            // Restore action view state before we prepare. This gives apps
409            // an opportunity to override frozen/restored state in onPrepare.
410            if (st.frozenActionViewState != null) {
411                st.menu.restoreActionViewStates(st.frozenActionViewState);
412                st.frozenActionViewState = null;
413            }
414
415            if (!cb.onPreparePanel(st.featureId, st.createdPanelView, st.menu)) {
416                if (mActionBar != null) {
417                    // The app didn't want to show the menu for now but it still exists.
418                    // Clear it out of the action bar.
419                    mActionBar.setMenu(null, mActionMenuPresenterCallback);
420                }
421                st.menu.startDispatchingItemsChanged();
422                return false;
423            }
424
425            // Set the proper keymap
426            KeyCharacterMap kmap = KeyCharacterMap.load(
427                    event != null ? event.getDeviceId() : KeyCharacterMap.VIRTUAL_KEYBOARD);
428            st.qwertyMode = kmap.getKeyboardType() != KeyCharacterMap.NUMERIC;
429            st.menu.setQwertyMode(st.qwertyMode);
430            st.menu.startDispatchingItemsChanged();
431        }
432
433        // Set other state
434        st.isPrepared = true;
435        st.isHandled = false;
436        mPreparedPanel = st;
437
438        return true;
439    }
440
441    @Override
442    public void onConfigurationChanged(Configuration newConfig) {
443        // Action bars handle their own menu state
444        if (mActionBar == null) {
445            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
446            if ((st != null) && (st.menu != null)) {
447                if (st.isOpen) {
448                    // Freeze state
449                    final Bundle state = new Bundle();
450                    if (st.iconMenuPresenter != null) {
451                        st.iconMenuPresenter.saveHierarchyState(state);
452                    }
453                    if (st.listMenuPresenter != null) {
454                        st.listMenuPresenter.saveHierarchyState(state);
455                    }
456
457                    // Remove the menu views since they need to be recreated
458                    // according to the new configuration
459                    clearMenuViews(st);
460
461                    // Re-open the same menu
462                    reopenMenu(false);
463
464                    // Restore state
465                    if (st.iconMenuPresenter != null) {
466                        st.iconMenuPresenter.restoreHierarchyState(state);
467                    }
468                    if (st.listMenuPresenter != null) {
469                        st.listMenuPresenter.restoreHierarchyState(state);
470                    }
471
472                } else {
473                    // Clear menu views so on next menu opening, it will use
474                    // the proper layout
475                    clearMenuViews(st);
476                }
477            }
478        }
479    }
480
481    private static void clearMenuViews(PanelFeatureState st) {
482        // This can be called on config changes, so we should make sure
483        // the views will be reconstructed based on the new orientation, etc.
484
485        // Allow the callback to create a new panel view
486        st.createdPanelView = null;
487
488        // Causes the decor view to be recreated
489        st.refreshDecorView = true;
490
491        st.clearMenuPresenters();
492    }
493
494    @Override
495    public final void openPanel(int featureId, KeyEvent event) {
496        if (featureId == FEATURE_OPTIONS_PANEL && mActionBar != null &&
497                mActionBar.isOverflowReserved()) {
498            if (mActionBar.getVisibility() == View.VISIBLE) {
499                mActionBar.showOverflowMenu();
500            }
501        } else {
502            openPanel(getPanelState(featureId, true), event);
503        }
504    }
505
506    private void openPanel(PanelFeatureState st, KeyEvent event) {
507        // System.out.println("Open panel: isOpen=" + st.isOpen);
508
509        // Already open, return
510        if (st.isOpen || isDestroyed()) {
511            return;
512        }
513
514        // Don't open an options panel for honeycomb apps on xlarge devices.
515        // (The app should be using an action bar for menu items.)
516        if (st.featureId == FEATURE_OPTIONS_PANEL) {
517            Context context = getContext();
518            Configuration config = context.getResources().getConfiguration();
519            boolean isXLarge = (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) ==
520                    Configuration.SCREENLAYOUT_SIZE_XLARGE;
521            boolean isHoneycombApp = context.getApplicationInfo().targetSdkVersion >=
522                    android.os.Build.VERSION_CODES.HONEYCOMB;
523
524            if (isXLarge && isHoneycombApp) {
525                return;
526            }
527        }
528
529        Callback cb = getCallback();
530        if ((cb != null) && (!cb.onMenuOpened(st.featureId, st.menu))) {
531            // Callback doesn't want the menu to open, reset any state
532            closePanel(st, true);
533            return;
534        }
535
536        final WindowManager wm = getWindowManager();
537        if (wm == null) {
538            return;
539        }
540
541        // Prepare panel (should have been done before, but just in case)
542        if (!preparePanel(st, event)) {
543            return;
544        }
545
546        int width = WRAP_CONTENT;
547        if (st.decorView == null || st.refreshDecorView) {
548            if (st.decorView == null) {
549                // Initialize the panel decor, this will populate st.decorView
550                if (!initializePanelDecor(st) || (st.decorView == null))
551                    return;
552            } else if (st.refreshDecorView && (st.decorView.getChildCount() > 0)) {
553                // Decor needs refreshing, so remove its views
554                st.decorView.removeAllViews();
555            }
556
557            // This will populate st.shownPanelView
558            if (!initializePanelContent(st) || !st.hasPanelItems()) {
559                return;
560            }
561
562            ViewGroup.LayoutParams lp = st.shownPanelView.getLayoutParams();
563            if (lp == null) {
564                lp = new ViewGroup.LayoutParams(WRAP_CONTENT, WRAP_CONTENT);
565            }
566
567            int backgroundResId;
568            if (lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
569                // If the contents is fill parent for the width, set the
570                // corresponding background
571                backgroundResId = st.fullBackground;
572                width = MATCH_PARENT;
573            } else {
574                // Otherwise, set the normal panel background
575                backgroundResId = st.background;
576            }
577            st.decorView.setWindowBackground(getContext().getResources().getDrawable(
578                    backgroundResId));
579
580
581            st.decorView.addView(st.shownPanelView, lp);
582
583            /*
584             * Give focus to the view, if it or one of its children does not
585             * already have it.
586             */
587            if (!st.shownPanelView.hasFocus()) {
588                st.shownPanelView.requestFocus();
589            }
590        } else if (!st.isInListMode()) {
591            width = MATCH_PARENT;
592        } else if (st.createdPanelView != null) {
593            // If we already had a panel view, carry width=MATCH_PARENT through
594            // as we did above when it was created.
595            ViewGroup.LayoutParams lp = st.createdPanelView.getLayoutParams();
596            if (lp != null && lp.width == ViewGroup.LayoutParams.MATCH_PARENT) {
597                width = MATCH_PARENT;
598            }
599        }
600
601        st.isOpen = true;
602        st.isHandled = false;
603
604        WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
605                width, WRAP_CONTENT,
606                st.x, st.y, WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG,
607                WindowManager.LayoutParams.FLAG_DITHER
608                | WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM
609                | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH,
610                st.decorView.mDefaultOpacity);
611
612        if (st.isCompact) {
613            lp.gravity = getOptionsPanelGravity();
614            sRotationWatcher.addWindow(this);
615        } else {
616            lp.gravity = st.gravity;
617        }
618
619        lp.windowAnimations = st.windowAnimations;
620
621        wm.addView(st.decorView, lp);
622        // Log.v(TAG, "Adding main menu to window manager.");
623    }
624
625    @Override
626    public final void closePanel(int featureId) {
627        if (featureId == FEATURE_OPTIONS_PANEL && mActionBar != null &&
628                mActionBar.isOverflowReserved()) {
629            mActionBar.hideOverflowMenu();
630        } else if (featureId == FEATURE_CONTEXT_MENU) {
631            closeContextMenu();
632        } else {
633            closePanel(getPanelState(featureId, true), true);
634        }
635    }
636
637    /**
638     * Closes the given panel.
639     *
640     * @param st The panel to be closed.
641     * @param doCallback Whether to notify the callback that the panel was
642     *            closed. If the panel is in the process of re-opening or
643     *            opening another panel (e.g., menu opening a sub menu), the
644     *            callback should not happen and this variable should be false.
645     *            In addition, this method internally will only perform the
646     *            callback if the panel is open.
647     */
648    public final void closePanel(PanelFeatureState st, boolean doCallback) {
649        // System.out.println("Close panel: isOpen=" + st.isOpen);
650        if (doCallback && st.featureId == FEATURE_OPTIONS_PANEL &&
651                mActionBar != null && mActionBar.isOverflowMenuShowing()) {
652            checkCloseActionMenu(st.menu);
653            return;
654        }
655
656        final ViewManager wm = getWindowManager();
657        if ((wm != null) && st.isOpen) {
658            if (st.decorView != null) {
659                wm.removeView(st.decorView);
660                // Log.v(TAG, "Removing main menu from window manager.");
661                if (st.isCompact) {
662                    sRotationWatcher.removeWindow(this);
663                }
664            }
665
666            if (doCallback) {
667                callOnPanelClosed(st.featureId, st, null);
668            }
669        }
670
671        st.isPrepared = false;
672        st.isHandled = false;
673        st.isOpen = false;
674
675        // This view is no longer shown, so null it out
676        st.shownPanelView = null;
677
678        if (st.isInExpandedMode) {
679            // Next time the menu opens, it should not be in expanded mode, so
680            // force a refresh of the decor
681            st.refreshDecorView = true;
682            st.isInExpandedMode = false;
683        }
684
685        if (mPreparedPanel == st) {
686            mPreparedPanel = null;
687            mPanelChordingKey = 0;
688        }
689    }
690
691    void checkCloseActionMenu(Menu menu) {
692        if (mClosingActionMenu) {
693            return;
694        }
695
696        mClosingActionMenu = true;
697        mActionBar.dismissPopupMenus();
698        Callback cb = getCallback();
699        if (cb != null && !isDestroyed()) {
700            cb.onPanelClosed(FEATURE_ACTION_BAR, menu);
701        }
702        mClosingActionMenu = false;
703    }
704
705    @Override
706    public final void togglePanel(int featureId, KeyEvent event) {
707        PanelFeatureState st = getPanelState(featureId, true);
708        if (st.isOpen) {
709            closePanel(st, true);
710        } else {
711            openPanel(st, event);
712        }
713    }
714
715    @Override
716    public void invalidatePanelMenu(int featureId) {
717        PanelFeatureState st = getPanelState(featureId, true);
718        Bundle savedActionViewStates = null;
719        if (st.menu != null) {
720            savedActionViewStates = new Bundle();
721            st.menu.saveActionViewStates(savedActionViewStates);
722            if (savedActionViewStates.size() > 0) {
723                st.frozenActionViewState = savedActionViewStates;
724            }
725            // This will be started again when the panel is prepared.
726            st.menu.stopDispatchingItemsChanged();
727            st.menu.clear();
728        }
729        st.refreshMenuContent = true;
730        st.refreshDecorView = true;
731
732        // Prepare the options panel if we have an action bar
733        if ((featureId == FEATURE_ACTION_BAR || featureId == FEATURE_OPTIONS_PANEL)
734                && mActionBar != null) {
735            st = getPanelState(Window.FEATURE_OPTIONS_PANEL, false);
736            if (st != null) {
737                st.isPrepared = false;
738                preparePanel(st, null);
739            }
740        }
741    }
742
743    /**
744     * Called when the panel key is pushed down.
745     * @param featureId The feature ID of the relevant panel (defaults to FEATURE_OPTIONS_PANEL}.
746     * @param event The key event.
747     * @return Whether the key was handled.
748     */
749    public final boolean onKeyDownPanel(int featureId, KeyEvent event) {
750        final int keyCode = event.getKeyCode();
751
752        if (event.getRepeatCount() == 0) {
753            // The panel key was pushed, so set the chording key
754            mPanelChordingKey = keyCode;
755
756            PanelFeatureState st = getPanelState(featureId, true);
757            if (!st.isOpen) {
758                return preparePanel(st, event);
759            }
760        }
761
762        return false;
763    }
764
765    /**
766     * Called when the panel key is released.
767     * @param featureId The feature ID of the relevant panel (defaults to FEATURE_OPTIONS_PANEL}.
768     * @param event The key event.
769     */
770    public final void onKeyUpPanel(int featureId, KeyEvent event) {
771        // The panel key was released, so clear the chording key
772        if (mPanelChordingKey != 0) {
773            mPanelChordingKey = 0;
774
775            if (event.isCanceled() || (mDecor != null && mDecor.mActionMode != null)) {
776                return;
777            }
778
779            boolean playSoundEffect = false;
780            final PanelFeatureState st = getPanelState(featureId, true);
781            if (featureId == FEATURE_OPTIONS_PANEL && mActionBar != null &&
782                    mActionBar.isOverflowReserved()) {
783                if (mActionBar.getVisibility() == View.VISIBLE) {
784                    if (!mActionBar.isOverflowMenuShowing()) {
785                        if (!isDestroyed() && preparePanel(st, event)) {
786                            playSoundEffect = mActionBar.showOverflowMenu();
787                        }
788                    } else {
789                        playSoundEffect = mActionBar.hideOverflowMenu();
790                    }
791                }
792            } else {
793                if (st.isOpen || st.isHandled) {
794
795                    // Play the sound effect if the user closed an open menu (and not if
796                    // they just released a menu shortcut)
797                    playSoundEffect = st.isOpen;
798
799                    // Close menu
800                    closePanel(st, true);
801
802                } else if (st.isPrepared) {
803
804                    // Write 'menu opened' to event log
805                    EventLog.writeEvent(50001, 0);
806
807                    // Show menu
808                    openPanel(st, event);
809
810                    playSoundEffect = true;
811                }
812            }
813
814            if (playSoundEffect) {
815                AudioManager audioManager = (AudioManager) getContext().getSystemService(
816                        Context.AUDIO_SERVICE);
817                if (audioManager != null) {
818                    audioManager.playSoundEffect(AudioManager.FX_KEY_CLICK);
819                } else {
820                    Log.w(TAG, "Couldn't get audio manager");
821                }
822            }
823        }
824    }
825
826    @Override
827    public final void closeAllPanels() {
828        final ViewManager wm = getWindowManager();
829        if (wm == null) {
830            return;
831        }
832
833        final PanelFeatureState[] panels = mPanels;
834        final int N = panels != null ? panels.length : 0;
835        for (int i = 0; i < N; i++) {
836            final PanelFeatureState panel = panels[i];
837            if (panel != null) {
838                closePanel(panel, true);
839            }
840        }
841
842        closeContextMenu();
843    }
844
845    /**
846     * Closes the context menu. This notifies the menu logic of the close, along
847     * with dismissing it from the UI.
848     */
849    private synchronized void closeContextMenu() {
850        if (mContextMenu != null) {
851            mContextMenu.close();
852            dismissContextMenu();
853        }
854    }
855
856    /**
857     * Dismisses just the context menu UI. To close the context menu, use
858     * {@link #closeContextMenu()}.
859     */
860    private synchronized void dismissContextMenu() {
861        mContextMenu = null;
862
863        if (mContextMenuHelper != null) {
864            mContextMenuHelper.dismiss();
865            mContextMenuHelper = null;
866        }
867    }
868
869    @Override
870    public boolean performPanelShortcut(int featureId, int keyCode, KeyEvent event, int flags) {
871        return performPanelShortcut(getPanelState(featureId, true), keyCode, event, flags);
872    }
873
874    private boolean performPanelShortcut(PanelFeatureState st, int keyCode, KeyEvent event,
875            int flags) {
876        if (event.isSystem() || (st == null)) {
877            return false;
878        }
879
880        boolean handled = false;
881
882        // Only try to perform menu shortcuts if preparePanel returned true (possible false
883        // return value from application not wanting to show the menu).
884        if ((st.isPrepared || preparePanel(st, event)) && st.menu != null) {
885            // The menu is prepared now, perform the shortcut on it
886            handled = st.menu.performShortcut(keyCode, event, flags);
887        }
888
889        if (handled) {
890            // Mark as handled
891            st.isHandled = true;
892
893            // Only close down the menu if we don't have an action bar keeping it open.
894            if ((flags & Menu.FLAG_PERFORM_NO_CLOSE) == 0 && mActionBar == null) {
895                closePanel(st, true);
896            }
897        }
898
899        return handled;
900    }
901
902    @Override
903    public boolean performPanelIdentifierAction(int featureId, int id, int flags) {
904
905        PanelFeatureState st = getPanelState(featureId, true);
906        if (!preparePanel(st, new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MENU))) {
907            return false;
908        }
909        if (st.menu == null) {
910            return false;
911        }
912
913        boolean res = st.menu.performIdentifierAction(id, flags);
914
915        // Only close down the menu if we don't have an action bar keeping it open.
916        if (mActionBar == null) {
917            closePanel(st, true);
918        }
919
920        return res;
921    }
922
923    public PanelFeatureState findMenuPanel(Menu menu) {
924        final PanelFeatureState[] panels = mPanels;
925        final int N = panels != null ? panels.length : 0;
926        for (int i = 0; i < N; i++) {
927            final PanelFeatureState panel = panels[i];
928            if (panel != null && panel.menu == menu) {
929                return panel;
930            }
931        }
932        return null;
933    }
934
935    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
936        final Callback cb = getCallback();
937        if (cb != null && !isDestroyed()) {
938            final PanelFeatureState panel = findMenuPanel(menu.getRootMenu());
939            if (panel != null) {
940                return cb.onMenuItemSelected(panel.featureId, item);
941            }
942        }
943        return false;
944    }
945
946    public void onMenuModeChange(MenuBuilder menu) {
947        reopenMenu(true);
948    }
949
950    private void reopenMenu(boolean toggleMenuMode) {
951        if (mActionBar != null && mActionBar.isOverflowReserved()) {
952            final Callback cb = getCallback();
953            if (!mActionBar.isOverflowMenuShowing() || !toggleMenuMode) {
954                if (cb != null && !isDestroyed() && mActionBar.getVisibility() == View.VISIBLE) {
955                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
956                    if (cb.onPreparePanel(FEATURE_OPTIONS_PANEL, st.createdPanelView, st.menu)) {
957                        cb.onMenuOpened(FEATURE_ACTION_BAR, st.menu);
958                        mActionBar.showOverflowMenu();
959                    }
960                }
961            } else {
962                mActionBar.hideOverflowMenu();
963                if (cb != null && !isDestroyed()) {
964                    final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
965                    cb.onPanelClosed(FEATURE_ACTION_BAR, st.menu);
966                }
967            }
968            return;
969        }
970
971        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
972
973        // Save the future expanded mode state since closePanel will reset it
974        boolean newExpandedMode = toggleMenuMode ? !st.isInExpandedMode : st.isInExpandedMode;
975
976        st.refreshDecorView = true;
977        closePanel(st, false);
978
979        // Set the expanded mode state
980        st.isInExpandedMode = newExpandedMode;
981
982        openPanel(st, null);
983    }
984
985    /**
986     * Initializes the menu associated with the given panel feature state. You
987     * must at the very least set PanelFeatureState.menu to the Menu to be
988     * associated with the given panel state. The default implementation creates
989     * a new menu for the panel state.
990     *
991     * @param st The panel whose menu is being initialized.
992     * @return Whether the initialization was successful.
993     */
994    protected boolean initializePanelMenu(final PanelFeatureState st) {
995        Context context = getContext();
996
997        // If we have an action bar, initialize the menu with a context themed for it.
998        if ((st.featureId == FEATURE_OPTIONS_PANEL || st.featureId == FEATURE_ACTION_BAR) &&
999                mActionBar != null) {
1000            TypedValue outValue = new TypedValue();
1001            Resources.Theme currentTheme = context.getTheme();
1002            currentTheme.resolveAttribute(com.android.internal.R.attr.actionBarWidgetTheme,
1003                    outValue, true);
1004            final int targetThemeRes = outValue.resourceId;
1005
1006            if (targetThemeRes != 0 && context.getThemeResId() != targetThemeRes) {
1007                context = new ContextThemeWrapper(context, targetThemeRes);
1008            }
1009        }
1010
1011        final MenuBuilder menu = new MenuBuilder(context);
1012
1013        menu.setCallback(this);
1014        st.setMenu(menu);
1015
1016        return true;
1017    }
1018
1019    /**
1020     * Perform initial setup of a panel. This should at the very least set the
1021     * style information in the PanelFeatureState and must set
1022     * PanelFeatureState.decor to the panel's window decor view.
1023     *
1024     * @param st The panel being initialized.
1025     */
1026    protected boolean initializePanelDecor(PanelFeatureState st) {
1027        st.decorView = new DecorView(getContext(), st.featureId);
1028        st.gravity = Gravity.CENTER | Gravity.BOTTOM;
1029        st.setStyle(getContext());
1030
1031        return true;
1032    }
1033
1034    /**
1035     * Determine the gravity value for the options panel. This can
1036     * differ in compact mode.
1037     *
1038     * @return gravity value to use for the panel window
1039     */
1040    private int getOptionsPanelGravity() {
1041        try {
1042            return WindowManagerHolder.sWindowManager.getPreferredOptionsPanelGravity();
1043        } catch (RemoteException ex) {
1044            Log.e(TAG, "Couldn't getOptionsPanelGravity; using default", ex);
1045            return Gravity.CENTER | Gravity.BOTTOM;
1046        }
1047    }
1048
1049    void onOptionsPanelRotationChanged() {
1050        final PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
1051        if (st == null) return;
1052
1053        final WindowManager.LayoutParams lp = st.decorView != null ?
1054                (WindowManager.LayoutParams) st.decorView.getLayoutParams() : null;
1055        if (lp != null) {
1056            lp.gravity = getOptionsPanelGravity();
1057            final ViewManager wm = getWindowManager();
1058            if (wm != null) {
1059                wm.updateViewLayout(st.decorView, lp);
1060            }
1061        }
1062    }
1063
1064    /**
1065     * Initializes the panel associated with the panel feature state. You must
1066     * at the very least set PanelFeatureState.panel to the View implementing
1067     * its contents. The default implementation gets the panel from the menu.
1068     *
1069     * @param st The panel state being initialized.
1070     * @return Whether the initialization was successful.
1071     */
1072    protected boolean initializePanelContent(PanelFeatureState st) {
1073        if (st.createdPanelView != null) {
1074            st.shownPanelView = st.createdPanelView;
1075            return true;
1076        }
1077
1078        if (st.menu == null) {
1079            return false;
1080        }
1081
1082        if (mPanelMenuPresenterCallback == null) {
1083            mPanelMenuPresenterCallback = new PanelMenuPresenterCallback();
1084        }
1085
1086        MenuView menuView = st.isInListMode()
1087                ? st.getListMenuView(mPanelMenuPresenterCallback)
1088                : st.getIconMenuView(mPanelMenuPresenterCallback);
1089
1090        st.shownPanelView = (View) menuView;
1091
1092        if (st.shownPanelView != null) {
1093            // Use the menu View's default animations if it has any
1094            final int defaultAnimations = menuView.getWindowAnimations();
1095            if (defaultAnimations != 0) {
1096                st.windowAnimations = defaultAnimations;
1097            }
1098            return true;
1099        } else {
1100            return false;
1101        }
1102    }
1103
1104    @Override
1105    public boolean performContextMenuIdentifierAction(int id, int flags) {
1106        return (mContextMenu != null) ? mContextMenu.performIdentifierAction(id, flags) : false;
1107    }
1108
1109    @Override
1110    public final void setBackgroundDrawable(Drawable drawable) {
1111        if (drawable != mBackgroundDrawable || mBackgroundResource != 0) {
1112            mBackgroundResource = 0;
1113            mBackgroundDrawable = drawable;
1114            if (mDecor != null) {
1115                mDecor.setWindowBackground(drawable);
1116            }
1117        }
1118    }
1119
1120    @Override
1121    public final void setFeatureDrawableResource(int featureId, int resId) {
1122        if (resId != 0) {
1123            DrawableFeatureState st = getDrawableState(featureId, true);
1124            if (st.resid != resId) {
1125                st.resid = resId;
1126                st.uri = null;
1127                st.local = getContext().getResources().getDrawable(resId);
1128                updateDrawable(featureId, st, false);
1129            }
1130        } else {
1131            setFeatureDrawable(featureId, null);
1132        }
1133    }
1134
1135    @Override
1136    public final void setFeatureDrawableUri(int featureId, Uri uri) {
1137        if (uri != null) {
1138            DrawableFeatureState st = getDrawableState(featureId, true);
1139            if (st.uri == null || !st.uri.equals(uri)) {
1140                st.resid = 0;
1141                st.uri = uri;
1142                st.local = loadImageURI(uri);
1143                updateDrawable(featureId, st, false);
1144            }
1145        } else {
1146            setFeatureDrawable(featureId, null);
1147        }
1148    }
1149
1150    @Override
1151    public final void setFeatureDrawable(int featureId, Drawable drawable) {
1152        DrawableFeatureState st = getDrawableState(featureId, true);
1153        st.resid = 0;
1154        st.uri = null;
1155        if (st.local != drawable) {
1156            st.local = drawable;
1157            updateDrawable(featureId, st, false);
1158        }
1159    }
1160
1161    @Override
1162    public void setFeatureDrawableAlpha(int featureId, int alpha) {
1163        DrawableFeatureState st = getDrawableState(featureId, true);
1164        if (st.alpha != alpha) {
1165            st.alpha = alpha;
1166            updateDrawable(featureId, st, false);
1167        }
1168    }
1169
1170    protected final void setFeatureDefaultDrawable(int featureId, Drawable drawable) {
1171        DrawableFeatureState st = getDrawableState(featureId, true);
1172        if (st.def != drawable) {
1173            st.def = drawable;
1174            updateDrawable(featureId, st, false);
1175        }
1176    }
1177
1178    @Override
1179    public final void setFeatureInt(int featureId, int value) {
1180        // XXX Should do more management (as with drawable features) to
1181        // deal with interactions between multiple window policies.
1182        updateInt(featureId, value, false);
1183    }
1184
1185    /**
1186     * Update the state of a drawable feature. This should be called, for every
1187     * drawable feature supported, as part of onActive(), to make sure that the
1188     * contents of a containing window is properly updated.
1189     *
1190     * @see #onActive
1191     * @param featureId The desired drawable feature to change.
1192     * @param fromActive Always true when called from onActive().
1193     */
1194    protected final void updateDrawable(int featureId, boolean fromActive) {
1195        final DrawableFeatureState st = getDrawableState(featureId, false);
1196        if (st != null) {
1197            updateDrawable(featureId, st, fromActive);
1198        }
1199    }
1200
1201    /**
1202     * Called when a Drawable feature changes, for the window to update its
1203     * graphics.
1204     *
1205     * @param featureId The feature being changed.
1206     * @param drawable The new Drawable to show, or null if none.
1207     * @param alpha The new alpha blending of the Drawable.
1208     */
1209    protected void onDrawableChanged(int featureId, Drawable drawable, int alpha) {
1210        ImageView view;
1211        if (featureId == FEATURE_LEFT_ICON) {
1212            view = getLeftIconView();
1213        } else if (featureId == FEATURE_RIGHT_ICON) {
1214            view = getRightIconView();
1215        } else {
1216            return;
1217        }
1218
1219        if (drawable != null) {
1220            drawable.setAlpha(alpha);
1221            view.setImageDrawable(drawable);
1222            view.setVisibility(View.VISIBLE);
1223        } else {
1224            view.setVisibility(View.GONE);
1225        }
1226    }
1227
1228    /**
1229     * Called when an int feature changes, for the window to update its
1230     * graphics.
1231     *
1232     * @param featureId The feature being changed.
1233     * @param value The new integer value.
1234     */
1235    protected void onIntChanged(int featureId, int value) {
1236        if (featureId == FEATURE_PROGRESS || featureId == FEATURE_INDETERMINATE_PROGRESS) {
1237            updateProgressBars(value);
1238        } else if (featureId == FEATURE_CUSTOM_TITLE) {
1239            FrameLayout titleContainer = (FrameLayout) findViewById(com.android.internal.R.id.title_container);
1240            if (titleContainer != null) {
1241                mLayoutInflater.inflate(value, titleContainer);
1242            }
1243        }
1244    }
1245
1246    /**
1247     * Updates the progress bars that are shown in the title bar.
1248     *
1249     * @param value Can be one of {@link Window#PROGRESS_VISIBILITY_ON},
1250     *            {@link Window#PROGRESS_VISIBILITY_OFF},
1251     *            {@link Window#PROGRESS_INDETERMINATE_ON},
1252     *            {@link Window#PROGRESS_INDETERMINATE_OFF}, or a value
1253     *            starting at {@link Window#PROGRESS_START} through
1254     *            {@link Window#PROGRESS_END} for setting the default
1255     *            progress (if {@link Window#PROGRESS_END} is given,
1256     *            the progress bar widgets in the title will be hidden after an
1257     *            animation), a value between
1258     *            {@link Window#PROGRESS_SECONDARY_START} -
1259     *            {@link Window#PROGRESS_SECONDARY_END} for the
1260     *            secondary progress (if
1261     *            {@link Window#PROGRESS_SECONDARY_END} is given, the
1262     *            progress bar widgets will still be shown with the secondary
1263     *            progress bar will be completely filled in.)
1264     */
1265    private void updateProgressBars(int value) {
1266        ProgressBar circularProgressBar = getCircularProgressBar(true);
1267        ProgressBar horizontalProgressBar = getHorizontalProgressBar(true);
1268
1269        final int features = getLocalFeatures();
1270        if (value == PROGRESS_VISIBILITY_ON) {
1271            if ((features & (1 << FEATURE_PROGRESS)) != 0) {
1272                int level = horizontalProgressBar.getProgress();
1273                int visibility = (horizontalProgressBar.isIndeterminate() || level < 10000) ?
1274                        View.VISIBLE : View.INVISIBLE;
1275                horizontalProgressBar.setVisibility(visibility);
1276            }
1277            if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
1278                circularProgressBar.setVisibility(View.VISIBLE);
1279            }
1280        } else if (value == PROGRESS_VISIBILITY_OFF) {
1281            if ((features & (1 << FEATURE_PROGRESS)) != 0) {
1282                horizontalProgressBar.setVisibility(View.GONE);
1283            }
1284            if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
1285                circularProgressBar.setVisibility(View.GONE);
1286            }
1287        } else if (value == PROGRESS_INDETERMINATE_ON) {
1288            horizontalProgressBar.setIndeterminate(true);
1289        } else if (value == PROGRESS_INDETERMINATE_OFF) {
1290            horizontalProgressBar.setIndeterminate(false);
1291        } else if (PROGRESS_START <= value && value <= PROGRESS_END) {
1292            // We want to set the progress value before testing for visibility
1293            // so that when the progress bar becomes visible again, it has the
1294            // correct level.
1295            horizontalProgressBar.setProgress(value - PROGRESS_START);
1296
1297            if (value < PROGRESS_END) {
1298                showProgressBars(horizontalProgressBar, circularProgressBar);
1299            } else {
1300                hideProgressBars(horizontalProgressBar, circularProgressBar);
1301            }
1302        } else if (PROGRESS_SECONDARY_START <= value && value <= PROGRESS_SECONDARY_END) {
1303            horizontalProgressBar.setSecondaryProgress(value - PROGRESS_SECONDARY_START);
1304
1305            showProgressBars(horizontalProgressBar, circularProgressBar);
1306        }
1307
1308    }
1309
1310    private void showProgressBars(ProgressBar horizontalProgressBar, ProgressBar spinnyProgressBar) {
1311        final int features = getLocalFeatures();
1312        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0 &&
1313                spinnyProgressBar.getVisibility() == View.INVISIBLE) {
1314            spinnyProgressBar.setVisibility(View.VISIBLE);
1315        }
1316        // Only show the progress bars if the primary progress is not complete
1317        if ((features & (1 << FEATURE_PROGRESS)) != 0 &&
1318                horizontalProgressBar.getProgress() < 10000) {
1319            horizontalProgressBar.setVisibility(View.VISIBLE);
1320        }
1321    }
1322
1323    private void hideProgressBars(ProgressBar horizontalProgressBar, ProgressBar spinnyProgressBar) {
1324        final int features = getLocalFeatures();
1325        Animation anim = AnimationUtils.loadAnimation(getContext(), com.android.internal.R.anim.fade_out);
1326        anim.setDuration(1000);
1327        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0 &&
1328                spinnyProgressBar.getVisibility() == View.VISIBLE) {
1329            spinnyProgressBar.startAnimation(anim);
1330            spinnyProgressBar.setVisibility(View.INVISIBLE);
1331        }
1332        if ((features & (1 << FEATURE_PROGRESS)) != 0 &&
1333                horizontalProgressBar.getVisibility() == View.VISIBLE) {
1334            horizontalProgressBar.startAnimation(anim);
1335            horizontalProgressBar.setVisibility(View.INVISIBLE);
1336        }
1337    }
1338
1339    /**
1340     * Request that key events come to this activity. Use this if your activity
1341     * has no views with focus, but the activity still wants a chance to process
1342     * key events.
1343     */
1344    @Override
1345    public void takeKeyEvents(boolean get) {
1346        mDecor.setFocusable(get);
1347    }
1348
1349    @Override
1350    public boolean superDispatchKeyEvent(KeyEvent event) {
1351        return mDecor.superDispatchKeyEvent(event);
1352    }
1353
1354    @Override
1355    public boolean superDispatchKeyShortcutEvent(KeyEvent event) {
1356        return mDecor.superDispatchKeyShortcutEvent(event);
1357    }
1358
1359    @Override
1360    public boolean superDispatchTouchEvent(MotionEvent event) {
1361        return mDecor.superDispatchTouchEvent(event);
1362    }
1363
1364    @Override
1365    public boolean superDispatchTrackballEvent(MotionEvent event) {
1366        return mDecor.superDispatchTrackballEvent(event);
1367    }
1368
1369    @Override
1370    public boolean superDispatchGenericMotionEvent(MotionEvent event) {
1371        return mDecor.superDispatchGenericMotionEvent(event);
1372    }
1373
1374    /**
1375     * A key was pressed down and not handled by anything else in the window.
1376     *
1377     * @see #onKeyUp
1378     * @see android.view.KeyEvent
1379     */
1380    protected boolean onKeyDown(int featureId, int keyCode, KeyEvent event) {
1381        /* ****************************************************************************
1382         * HOW TO DECIDE WHERE YOUR KEY HANDLING GOES.
1383         *
1384         * If your key handling must happen before the app gets a crack at the event,
1385         * it goes in PhoneWindowManager.
1386         *
1387         * If your key handling should happen in all windows, and does not depend on
1388         * the state of the current application, other than that the current
1389         * application can override the behavior by handling the event itself, it
1390         * should go in PhoneFallbackEventHandler.
1391         *
1392         * Only if your handling depends on the window, and the fact that it has
1393         * a DecorView, should it go here.
1394         * ****************************************************************************/
1395
1396        final KeyEvent.DispatcherState dispatcher =
1397                mDecor != null ? mDecor.getKeyDispatcherState() : null;
1398        //Log.i(TAG, "Key down: repeat=" + event.getRepeatCount()
1399        //        + " flags=0x" + Integer.toHexString(event.getFlags()));
1400
1401        switch (keyCode) {
1402            case KeyEvent.KEYCODE_VOLUME_UP:
1403            case KeyEvent.KEYCODE_VOLUME_DOWN:
1404            case KeyEvent.KEYCODE_VOLUME_MUTE: {
1405                // Similar code is in PhoneFallbackEventHandler in case the window
1406                // doesn't have one of these.  In this case, we execute it here and
1407                // eat the event instead, because we have mVolumeControlStreamType
1408                // and they don't.
1409                getAudioManager().handleKeyDown(keyCode, mVolumeControlStreamType);
1410                return true;
1411            }
1412
1413            case KeyEvent.KEYCODE_MENU: {
1414                onKeyDownPanel((featureId < 0) ? FEATURE_OPTIONS_PANEL : featureId, event);
1415                return true;
1416            }
1417
1418            case KeyEvent.KEYCODE_BACK: {
1419                if (event.getRepeatCount() > 0) break;
1420                if (featureId < 0) break;
1421                // Currently don't do anything with long press.
1422                if (dispatcher != null) {
1423                    dispatcher.startTracking(event, this);
1424                }
1425                return true;
1426            }
1427
1428        }
1429
1430        return false;
1431    }
1432
1433    private KeyguardManager getKeyguardManager() {
1434        if (mKeyguardManager == null) {
1435            mKeyguardManager = (KeyguardManager) getContext().getSystemService(
1436                    Context.KEYGUARD_SERVICE);
1437        }
1438        return mKeyguardManager;
1439    }
1440
1441    AudioManager getAudioManager() {
1442        if (mAudioManager == null) {
1443            mAudioManager = (AudioManager)getContext().getSystemService(Context.AUDIO_SERVICE);
1444        }
1445        return mAudioManager;
1446    }
1447
1448    /**
1449     * A key was released and not handled by anything else in the window.
1450     *
1451     * @see #onKeyDown
1452     * @see android.view.KeyEvent
1453     */
1454    protected boolean onKeyUp(int featureId, int keyCode, KeyEvent event) {
1455        final KeyEvent.DispatcherState dispatcher =
1456                mDecor != null ? mDecor.getKeyDispatcherState() : null;
1457        if (dispatcher != null) {
1458            dispatcher.handleUpEvent(event);
1459        }
1460        //Log.i(TAG, "Key up: repeat=" + event.getRepeatCount()
1461        //        + " flags=0x" + Integer.toHexString(event.getFlags()));
1462
1463        switch (keyCode) {
1464            case KeyEvent.KEYCODE_VOLUME_UP:
1465            case KeyEvent.KEYCODE_VOLUME_DOWN:
1466            case KeyEvent.KEYCODE_VOLUME_MUTE: {
1467                // Similar code is in PhoneFallbackEventHandler in case the window
1468                // doesn't have one of these.  In this case, we execute it here and
1469                // eat the event instead, because we have mVolumeControlStreamType
1470                // and they don't.
1471                getAudioManager().handleKeyUp(keyCode, mVolumeControlStreamType);
1472                return true;
1473            }
1474
1475            case KeyEvent.KEYCODE_MENU: {
1476                onKeyUpPanel(featureId < 0 ? FEATURE_OPTIONS_PANEL : featureId,
1477                        event);
1478                return true;
1479            }
1480
1481            case KeyEvent.KEYCODE_BACK: {
1482                if (featureId < 0) break;
1483                if (event.isTracking() && !event.isCanceled()) {
1484                    if (featureId == FEATURE_OPTIONS_PANEL) {
1485                        PanelFeatureState st = getPanelState(featureId, false);
1486                        if (st != null && st.isInExpandedMode) {
1487                            // If the user is in an expanded menu and hits back, it
1488                            // should go back to the icon menu
1489                            reopenMenu(true);
1490                            return true;
1491                        }
1492                    }
1493                    closePanel(featureId);
1494                    return true;
1495                }
1496                break;
1497            }
1498
1499            case KeyEvent.KEYCODE_SEARCH: {
1500                /*
1501                 * Do this in onKeyUp since the Search key is also used for
1502                 * chording quick launch shortcuts.
1503                 */
1504                if (getKeyguardManager().inKeyguardRestrictedInputMode()) {
1505                    break;
1506                }
1507                if (event.isTracking() && !event.isCanceled()) {
1508                    launchDefaultSearch();
1509                }
1510                return true;
1511            }
1512        }
1513
1514        return false;
1515    }
1516
1517    @Override
1518    protected void onActive() {
1519    }
1520
1521    @Override
1522    public final View getDecorView() {
1523        if (mDecor == null) {
1524            installDecor();
1525        }
1526        return mDecor;
1527    }
1528
1529    @Override
1530    public final View peekDecorView() {
1531        return mDecor;
1532    }
1533
1534    static private final String FOCUSED_ID_TAG = "android:focusedViewId";
1535    static private final String VIEWS_TAG = "android:views";
1536    static private final String PANELS_TAG = "android:Panels";
1537    static private final String ACTION_BAR_TAG = "android:ActionBar";
1538
1539    /** {@inheritDoc} */
1540    @Override
1541    public Bundle saveHierarchyState() {
1542        Bundle outState = new Bundle();
1543        if (mContentParent == null) {
1544            return outState;
1545        }
1546
1547        SparseArray<Parcelable> states = new SparseArray<Parcelable>();
1548        mContentParent.saveHierarchyState(states);
1549        outState.putSparseParcelableArray(VIEWS_TAG, states);
1550
1551        // save the focused view id
1552        View focusedView = mContentParent.findFocus();
1553        if (focusedView != null) {
1554            if (focusedView.getId() != View.NO_ID) {
1555                outState.putInt(FOCUSED_ID_TAG, focusedView.getId());
1556            } else {
1557                if (false) {
1558                    Log.d(TAG, "couldn't save which view has focus because the focused view "
1559                            + focusedView + " has no id.");
1560                }
1561            }
1562        }
1563
1564        // save the panels
1565        SparseArray<Parcelable> panelStates = new SparseArray<Parcelable>();
1566        savePanelState(panelStates);
1567        if (panelStates.size() > 0) {
1568            outState.putSparseParcelableArray(PANELS_TAG, panelStates);
1569        }
1570
1571        if (mActionBar != null) {
1572            SparseArray<Parcelable> actionBarStates = new SparseArray<Parcelable>();
1573            mActionBar.saveHierarchyState(actionBarStates);
1574            outState.putSparseParcelableArray(ACTION_BAR_TAG, actionBarStates);
1575        }
1576
1577        return outState;
1578    }
1579
1580    /** {@inheritDoc} */
1581    @Override
1582    public void restoreHierarchyState(Bundle savedInstanceState) {
1583        if (mContentParent == null) {
1584            return;
1585        }
1586
1587        SparseArray<Parcelable> savedStates
1588                = savedInstanceState.getSparseParcelableArray(VIEWS_TAG);
1589        if (savedStates != null) {
1590            mContentParent.restoreHierarchyState(savedStates);
1591        }
1592
1593        // restore the focused view
1594        int focusedViewId = savedInstanceState.getInt(FOCUSED_ID_TAG, View.NO_ID);
1595        if (focusedViewId != View.NO_ID) {
1596            View needsFocus = mContentParent.findViewById(focusedViewId);
1597            if (needsFocus != null) {
1598                needsFocus.requestFocus();
1599            } else {
1600                Log.w(TAG,
1601                        "Previously focused view reported id " + focusedViewId
1602                                + " during save, but can't be found during restore.");
1603            }
1604        }
1605
1606        // restore the panels
1607        SparseArray<Parcelable> panelStates = savedInstanceState.getSparseParcelableArray(PANELS_TAG);
1608        if (panelStates != null) {
1609            restorePanelState(panelStates);
1610        }
1611
1612        if (mActionBar != null) {
1613            SparseArray<Parcelable> actionBarStates =
1614                    savedInstanceState.getSparseParcelableArray(ACTION_BAR_TAG);
1615            mActionBar.restoreHierarchyState(actionBarStates);
1616        }
1617    }
1618
1619    /**
1620     * Invoked when the panels should freeze their state.
1621     *
1622     * @param icicles Save state into this. This is usually indexed by the
1623     *            featureId. This will be given to {@link #restorePanelState} in the
1624     *            future.
1625     */
1626    private void savePanelState(SparseArray<Parcelable> icicles) {
1627        PanelFeatureState[] panels = mPanels;
1628        if (panels == null) {
1629            return;
1630        }
1631
1632        for (int curFeatureId = panels.length - 1; curFeatureId >= 0; curFeatureId--) {
1633            if (panels[curFeatureId] != null) {
1634                icicles.put(curFeatureId, panels[curFeatureId].onSaveInstanceState());
1635            }
1636        }
1637    }
1638
1639    /**
1640     * Invoked when the panels should thaw their state from a previously frozen state.
1641     *
1642     * @param icicles The state saved by {@link #savePanelState} that needs to be thawed.
1643     */
1644    private void restorePanelState(SparseArray<Parcelable> icicles) {
1645        PanelFeatureState st;
1646        for (int curFeatureId = icicles.size() - 1; curFeatureId >= 0; curFeatureId--) {
1647            st = getPanelState(curFeatureId, false /* required */);
1648            if (st == null) {
1649                // The panel must not have been required, and is currently not around, skip it
1650                continue;
1651            }
1652
1653            st.onRestoreInstanceState(icicles.get(curFeatureId));
1654            invalidatePanelMenu(curFeatureId);
1655        }
1656
1657        /*
1658         * Implementation note: call openPanelsAfterRestore later to actually open the
1659         * restored panels.
1660         */
1661    }
1662
1663    /**
1664     * Opens the panels that have had their state restored. This should be
1665     * called sometime after {@link #restorePanelState} when it is safe to add
1666     * to the window manager.
1667     */
1668    private void openPanelsAfterRestore() {
1669        PanelFeatureState[] panels = mPanels;
1670
1671        if (panels == null) {
1672            return;
1673        }
1674
1675        PanelFeatureState st;
1676        for (int i = panels.length - 1; i >= 0; i--) {
1677            st = panels[i];
1678            // We restore the panel if it was last open; we skip it if it
1679            // now is open, to avoid a race condition if the user immediately
1680            // opens it when we are resuming.
1681            if (st != null) {
1682                st.applyFrozenState();
1683                if (!st.isOpen && st.wasLastOpen) {
1684                    st.isInExpandedMode = st.wasLastExpanded;
1685                    openPanel(st, null);
1686                }
1687            }
1688        }
1689    }
1690
1691    private class PanelMenuPresenterCallback implements MenuPresenter.Callback {
1692        @Override
1693        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
1694            final Menu parentMenu = menu.getRootMenu();
1695            final boolean isSubMenu = parentMenu != menu;
1696            final PanelFeatureState panel = findMenuPanel(isSubMenu ? parentMenu : menu);
1697            if (panel != null) {
1698                if (isSubMenu) {
1699                    callOnPanelClosed(panel.featureId, panel, parentMenu);
1700                    closePanel(panel, true);
1701                } else {
1702                    // Close the panel and only do the callback if the menu is being
1703                    // closed completely, not if opening a sub menu
1704                    closePanel(panel, allMenusAreClosing);
1705                }
1706            }
1707        }
1708
1709        @Override
1710        public boolean onOpenSubMenu(MenuBuilder subMenu) {
1711            if (subMenu == null && hasFeature(FEATURE_ACTION_BAR)) {
1712                Callback cb = getCallback();
1713                if (cb != null && !isDestroyed()) {
1714                    cb.onMenuOpened(FEATURE_ACTION_BAR, subMenu);
1715                }
1716            }
1717
1718            return true;
1719        }
1720    }
1721
1722    private final class ActionMenuPresenterCallback implements MenuPresenter.Callback {
1723        @Override
1724        public boolean onOpenSubMenu(MenuBuilder subMenu) {
1725            Callback cb = getCallback();
1726            if (cb != null) {
1727                cb.onMenuOpened(FEATURE_ACTION_BAR, subMenu);
1728                return true;
1729            }
1730            return false;
1731        }
1732
1733        @Override
1734        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
1735            checkCloseActionMenu(menu);
1736        }
1737    }
1738
1739    private final class DecorView extends FrameLayout implements RootViewSurfaceTaker {
1740        /* package */int mDefaultOpacity = PixelFormat.OPAQUE;
1741
1742        /** The feature ID of the panel, or -1 if this is the application's DecorView */
1743        private final int mFeatureId;
1744
1745        private final Rect mDrawingBounds = new Rect();
1746
1747        private final Rect mBackgroundPadding = new Rect();
1748
1749        private final Rect mFramePadding = new Rect();
1750
1751        private final Rect mFrameOffsets = new Rect();
1752
1753        private boolean mChanging;
1754
1755        private Drawable mMenuBackground;
1756        private boolean mWatchingForMenu;
1757        private int mDownY;
1758
1759        private ActionMode mActionMode;
1760        private ActionBarContextView mActionModeView;
1761        private PopupWindow mActionModePopup;
1762        private Runnable mShowActionModePopup;
1763
1764        public DecorView(Context context, int featureId) {
1765            super(context);
1766            mFeatureId = featureId;
1767        }
1768
1769        @Override
1770        public boolean dispatchKeyEvent(KeyEvent event) {
1771            final int keyCode = event.getKeyCode();
1772            final int action = event.getAction();
1773            final boolean isDown = action == KeyEvent.ACTION_DOWN;
1774
1775            if (isDown && (event.getRepeatCount() == 0)) {
1776                // First handle chording of panel key: if a panel key is held
1777                // but not released, try to execute a shortcut in it.
1778                if ((mPanelChordingKey > 0) && (mPanelChordingKey != keyCode)) {
1779                    boolean handled = dispatchKeyShortcutEvent(event);
1780                    if (handled) {
1781                        return true;
1782                    }
1783                }
1784
1785                // If a panel is open, perform a shortcut on it without the
1786                // chorded panel key
1787                if ((mPreparedPanel != null) && mPreparedPanel.isOpen) {
1788                    if (performPanelShortcut(mPreparedPanel, keyCode, event, 0)) {
1789                        return true;
1790                    }
1791                }
1792            }
1793
1794            if (!isDestroyed()) {
1795                final Callback cb = getCallback();
1796                final boolean handled = cb != null && mFeatureId < 0 ? cb.dispatchKeyEvent(event)
1797                        : super.dispatchKeyEvent(event);
1798                if (handled) {
1799                    return true;
1800                }
1801            }
1802
1803            return isDown ? PhoneWindow.this.onKeyDown(mFeatureId, event.getKeyCode(), event)
1804                    : PhoneWindow.this.onKeyUp(mFeatureId, event.getKeyCode(), event);
1805        }
1806
1807        @Override
1808        public boolean dispatchKeyShortcutEvent(KeyEvent ev) {
1809            // Perform the shortcut (mPreparedPanel can be null since
1810            // global shortcuts (such as search) don't rely on a
1811            // prepared panel or menu).
1812            boolean handled = performPanelShortcut(mPreparedPanel, ev.getKeyCode(), ev,
1813                    Menu.FLAG_PERFORM_NO_CLOSE);
1814            if (handled) {
1815                if (mPreparedPanel != null) {
1816                    mPreparedPanel.isHandled = true;
1817                }
1818                return true;
1819            }
1820
1821            // Shortcut not handled by the panel.  Dispatch to the view hierarchy.
1822            final Callback cb = getCallback();
1823            return cb != null && !isDestroyed() && mFeatureId < 0 ? cb.dispatchKeyShortcutEvent(ev)
1824                    : super.dispatchKeyShortcutEvent(ev);
1825        }
1826
1827        @Override
1828        public boolean dispatchTouchEvent(MotionEvent ev) {
1829            final Callback cb = getCallback();
1830            return cb != null && !isDestroyed() && mFeatureId < 0 ? cb.dispatchTouchEvent(ev)
1831                    : super.dispatchTouchEvent(ev);
1832        }
1833
1834        @Override
1835        public boolean dispatchTrackballEvent(MotionEvent ev) {
1836            final Callback cb = getCallback();
1837            return cb != null && !isDestroyed() && mFeatureId < 0 ? cb.dispatchTrackballEvent(ev)
1838                    : super.dispatchTrackballEvent(ev);
1839        }
1840
1841        @Override
1842        public boolean dispatchGenericMotionEvent(MotionEvent ev) {
1843            final Callback cb = getCallback();
1844            return cb != null && !isDestroyed() && mFeatureId < 0 ? cb.dispatchGenericMotionEvent(ev)
1845                    : super.dispatchGenericMotionEvent(ev);
1846        }
1847
1848        public boolean superDispatchKeyEvent(KeyEvent event) {
1849            if (super.dispatchKeyEvent(event)) {
1850                return true;
1851            }
1852
1853            // Not handled by the view hierarchy, does the action bar want it
1854            // to cancel out of something special?
1855            if (event.getKeyCode() == KeyEvent.KEYCODE_BACK) {
1856                final int action = event.getAction();
1857                // Back cancels action modes first.
1858                if (mActionMode != null) {
1859                    if (action == KeyEvent.ACTION_UP) {
1860                        mActionMode.finish();
1861                    }
1862                    return true;
1863                }
1864
1865                // Next collapse any expanded action views.
1866                if (mActionBar != null && mActionBar.hasExpandedActionView()) {
1867                    if (action == KeyEvent.ACTION_UP) {
1868                        mActionBar.collapseActionView();
1869                    }
1870                    return true;
1871                }
1872            }
1873
1874            return false;
1875        }
1876
1877        public boolean superDispatchKeyShortcutEvent(KeyEvent event) {
1878            return super.dispatchKeyShortcutEvent(event);
1879        }
1880
1881        public boolean superDispatchTouchEvent(MotionEvent event) {
1882            return super.dispatchTouchEvent(event);
1883        }
1884
1885        public boolean superDispatchTrackballEvent(MotionEvent event) {
1886            return super.dispatchTrackballEvent(event);
1887        }
1888
1889        public boolean superDispatchGenericMotionEvent(MotionEvent event) {
1890            return super.dispatchGenericMotionEvent(event);
1891        }
1892
1893        @Override
1894        public boolean onTouchEvent(MotionEvent event) {
1895            return onInterceptTouchEvent(event);
1896        }
1897
1898        private boolean isOutOfBounds(int x, int y) {
1899            return x < -5 || y < -5 || x > (getWidth() + 5)
1900                    || y > (getHeight() + 5);
1901        }
1902
1903        @Override
1904        public boolean onInterceptTouchEvent(MotionEvent event) {
1905            int action = event.getAction();
1906            if (mFeatureId >= 0) {
1907                if (action == MotionEvent.ACTION_DOWN) {
1908                    int x = (int)event.getX();
1909                    int y = (int)event.getY();
1910                    if (isOutOfBounds(x, y)) {
1911                        closePanel(mFeatureId);
1912                        return true;
1913                    }
1914                }
1915            }
1916
1917            if (!SWEEP_OPEN_MENU) {
1918                return false;
1919            }
1920
1921            if (mFeatureId >= 0) {
1922                if (action == MotionEvent.ACTION_DOWN) {
1923                    Log.i(TAG, "Watchiing!");
1924                    mWatchingForMenu = true;
1925                    mDownY = (int) event.getY();
1926                    return false;
1927                }
1928
1929                if (!mWatchingForMenu) {
1930                    return false;
1931                }
1932
1933                int y = (int)event.getY();
1934                if (action == MotionEvent.ACTION_MOVE) {
1935                    if (y > (mDownY+30)) {
1936                        Log.i(TAG, "Closing!");
1937                        closePanel(mFeatureId);
1938                        mWatchingForMenu = false;
1939                        return true;
1940                    }
1941                } else if (action == MotionEvent.ACTION_UP) {
1942                    mWatchingForMenu = false;
1943                }
1944
1945                return false;
1946            }
1947
1948            //Log.i(TAG, "Intercept: action=" + action + " y=" + event.getY()
1949            //        + " (in " + getHeight() + ")");
1950
1951            if (action == MotionEvent.ACTION_DOWN) {
1952                int y = (int)event.getY();
1953                if (y >= (getHeight()-5) && !hasChildren()) {
1954                    Log.i(TAG, "Watchiing!");
1955                    mWatchingForMenu = true;
1956                }
1957                return false;
1958            }
1959
1960            if (!mWatchingForMenu) {
1961                return false;
1962            }
1963
1964            int y = (int)event.getY();
1965            if (action == MotionEvent.ACTION_MOVE) {
1966                if (y < (getHeight()-30)) {
1967                    Log.i(TAG, "Opening!");
1968                    openPanel(FEATURE_OPTIONS_PANEL, new KeyEvent(
1969                            KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MENU));
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        @Override
1981        public void sendAccessibilityEvent(int eventType) {
1982            if (!AccessibilityManager.getInstance(mContext).isEnabled()) {
1983                return;
1984            }
1985
1986            // if we are showing a feature that should be announced and one child
1987            // make this child the event source since this is the feature itself
1988            // otherwise the callback will take over and announce its client
1989            if ((mFeatureId == FEATURE_OPTIONS_PANEL ||
1990                    mFeatureId == FEATURE_CONTEXT_MENU ||
1991                    mFeatureId == FEATURE_PROGRESS ||
1992                    mFeatureId == FEATURE_INDETERMINATE_PROGRESS)
1993                    && getChildCount() == 1) {
1994                getChildAt(0).sendAccessibilityEvent(eventType);
1995            } else {
1996                super.sendAccessibilityEvent(eventType);
1997            }
1998        }
1999
2000        @Override
2001        public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) {
2002            final Callback cb = getCallback();
2003            if (cb != null && !isDestroyed()) {
2004                if (cb.dispatchPopulateAccessibilityEvent(event)) {
2005                    return true;
2006                }
2007            }
2008            return super.dispatchPopulateAccessibilityEvent(event);
2009        }
2010
2011        @Override
2012        protected boolean setFrame(int l, int t, int r, int b) {
2013            boolean changed = super.setFrame(l, t, r, b);
2014            if (changed) {
2015                final Rect drawingBounds = mDrawingBounds;
2016                getDrawingRect(drawingBounds);
2017
2018                Drawable fg = getForeground();
2019                if (fg != null) {
2020                    final Rect frameOffsets = mFrameOffsets;
2021                    drawingBounds.left += frameOffsets.left;
2022                    drawingBounds.top += frameOffsets.top;
2023                    drawingBounds.right -= frameOffsets.right;
2024                    drawingBounds.bottom -= frameOffsets.bottom;
2025                    fg.setBounds(drawingBounds);
2026                    final Rect framePadding = mFramePadding;
2027                    drawingBounds.left += framePadding.left - frameOffsets.left;
2028                    drawingBounds.top += framePadding.top - frameOffsets.top;
2029                    drawingBounds.right -= framePadding.right - frameOffsets.right;
2030                    drawingBounds.bottom -= framePadding.bottom - frameOffsets.bottom;
2031                }
2032
2033                Drawable bg = getBackground();
2034                if (bg != null) {
2035                    bg.setBounds(drawingBounds);
2036                }
2037
2038                if (SWEEP_OPEN_MENU) {
2039                    if (mMenuBackground == null && mFeatureId < 0
2040                            && getAttributes().height
2041                            == WindowManager.LayoutParams.MATCH_PARENT) {
2042                        mMenuBackground = getContext().getResources().getDrawable(
2043                                com.android.internal.R.drawable.menu_background);
2044                    }
2045                    if (mMenuBackground != null) {
2046                        mMenuBackground.setBounds(drawingBounds.left,
2047                                drawingBounds.bottom-6, drawingBounds.right,
2048                                drawingBounds.bottom+20);
2049                    }
2050                }
2051            }
2052            return changed;
2053        }
2054
2055        @Override
2056        protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
2057            final DisplayMetrics metrics = getContext().getResources().getDisplayMetrics();
2058            final boolean isPortrait = metrics.widthPixels < metrics.heightPixels;
2059
2060            final int widthMode = getMode(widthMeasureSpec);
2061
2062            super.onMeasure(widthMeasureSpec, heightMeasureSpec);
2063
2064            int width = getMeasuredWidth();
2065            boolean measure = false;
2066
2067            widthMeasureSpec = MeasureSpec.makeMeasureSpec(width, EXACTLY);
2068
2069            final TypedValue tv = isPortrait ? mMinWidthMinor : mMinWidthMajor;
2070
2071            if (widthMode == AT_MOST && tv.type != TypedValue.TYPE_NULL) {
2072                final int min;
2073                if (tv.type == TypedValue.TYPE_DIMENSION) {
2074                    min = (int)tv.getDimension(metrics);
2075                } else if (tv.type == TypedValue.TYPE_FRACTION) {
2076                    min = (int)tv.getFraction(metrics.widthPixels, metrics.widthPixels);
2077                } else {
2078                    min = 0;
2079                }
2080
2081                if (width < min) {
2082                    widthMeasureSpec = MeasureSpec.makeMeasureSpec(min, EXACTLY);
2083                    measure = true;
2084                }
2085            }
2086
2087            // TODO: Support height?
2088
2089            if (measure) {
2090                super.onMeasure(widthMeasureSpec, heightMeasureSpec);
2091            }
2092        }
2093
2094        @Override
2095        public void draw(Canvas canvas) {
2096            super.draw(canvas);
2097
2098            if (mMenuBackground != null) {
2099                mMenuBackground.draw(canvas);
2100            }
2101        }
2102
2103
2104        @Override
2105        public boolean showContextMenuForChild(View originalView) {
2106            // Reuse the context menu builder
2107            if (mContextMenu == null) {
2108                mContextMenu = new ContextMenuBuilder(getContext());
2109                mContextMenu.setCallback(mContextMenuCallback);
2110            } else {
2111                mContextMenu.clearAll();
2112            }
2113
2114            final MenuDialogHelper helper = mContextMenu.show(originalView,
2115                    originalView.getWindowToken());
2116            if (helper != null) {
2117                helper.setPresenterCallback(mContextMenuCallback);
2118            }
2119            mContextMenuHelper = helper;
2120            return helper != null;
2121        }
2122
2123        @Override
2124        public ActionMode startActionModeForChild(View originalView,
2125                ActionMode.Callback callback) {
2126            // originalView can be used here to be sure that we don't obscure
2127            // relevant content with the context mode UI.
2128            return startActionMode(callback);
2129        }
2130
2131        @Override
2132        public ActionMode startActionMode(ActionMode.Callback callback) {
2133            if (mActionMode != null) {
2134                mActionMode.finish();
2135            }
2136
2137            final ActionMode.Callback wrappedCallback = new ActionModeCallbackWrapper(callback);
2138            ActionMode mode = null;
2139            if (getCallback() != null && !isDestroyed()) {
2140                try {
2141                    mode = getCallback().onWindowStartingActionMode(wrappedCallback);
2142                } catch (AbstractMethodError ame) {
2143                    // Older apps might not implement this callback method.
2144                }
2145            }
2146            if (mode != null) {
2147                mActionMode = mode;
2148            } else {
2149                if (mActionModeView == null) {
2150                    if (isFloating()) {
2151                        mActionModeView = new ActionBarContextView(mContext);
2152                        mActionModePopup = new PopupWindow(mContext, null,
2153                                com.android.internal.R.attr.actionModePopupWindowStyle);
2154                        mActionModePopup.setLayoutInScreenEnabled(true);
2155                        mActionModePopup.setLayoutInsetDecor(true);
2156                        mActionModePopup.setWindowLayoutType(
2157                                WindowManager.LayoutParams.TYPE_APPLICATION);
2158                        mActionModePopup.setContentView(mActionModeView);
2159                        mActionModePopup.setWidth(MATCH_PARENT);
2160
2161                        TypedValue heightValue = new TypedValue();
2162                        mContext.getTheme().resolveAttribute(
2163                                com.android.internal.R.attr.actionBarSize, heightValue, true);
2164                        final int height = TypedValue.complexToDimensionPixelSize(heightValue.data,
2165                                mContext.getResources().getDisplayMetrics());
2166                        mActionModeView.setContentHeight(height);
2167                        mActionModePopup.setHeight(WRAP_CONTENT);
2168                        mShowActionModePopup = new Runnable() {
2169                            public void run() {
2170                                mActionModePopup.showAtLocation(
2171                                        mActionModeView.getApplicationWindowToken(),
2172                                        Gravity.TOP | Gravity.FILL_HORIZONTAL, 0, 0);
2173                            }
2174                        };
2175                    } else {
2176                        ViewStub stub = (ViewStub) findViewById(
2177                                com.android.internal.R.id.action_mode_bar_stub);
2178                        if (stub != null) {
2179                            mActionModeView = (ActionBarContextView) stub.inflate();
2180                        }
2181                    }
2182                }
2183
2184                if (mActionModeView != null) {
2185                    mActionModeView.killMode();
2186                    mode = new StandaloneActionMode(getContext(), mActionModeView, wrappedCallback,
2187                            mActionModePopup == null);
2188                    if (callback.onCreateActionMode(mode, mode.getMenu())) {
2189                        mode.invalidate();
2190                        mActionModeView.initForMode(mode);
2191                        mActionModeView.setVisibility(View.VISIBLE);
2192                        mActionMode = mode;
2193                        if (mActionModePopup != null) {
2194                            post(mShowActionModePopup);
2195                        }
2196                        mActionModeView.sendAccessibilityEvent(
2197                                AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
2198                    } else {
2199                        mActionMode = null;
2200                    }
2201                }
2202            }
2203            if (mActionMode != null && getCallback() != null && !isDestroyed()) {
2204                try {
2205                    getCallback().onActionModeStarted(mActionMode);
2206                } catch (AbstractMethodError ame) {
2207                    // Older apps might not implement this callback method.
2208                }
2209            }
2210            return mActionMode;
2211        }
2212
2213        public void startChanging() {
2214            mChanging = true;
2215        }
2216
2217        public void finishChanging() {
2218            mChanging = false;
2219            drawableChanged();
2220        }
2221
2222        public void setWindowBackground(Drawable drawable) {
2223            if (getBackground() != drawable) {
2224                setBackgroundDrawable(drawable);
2225                if (drawable != null) {
2226                    drawable.getPadding(mBackgroundPadding);
2227                } else {
2228                    mBackgroundPadding.setEmpty();
2229                }
2230                drawableChanged();
2231            }
2232        }
2233
2234        @Override
2235        public void setBackgroundDrawable(Drawable d) {
2236            super.setBackgroundDrawable(d);
2237            if (getWindowToken() != null) {
2238                updateWindowResizeState();
2239            }
2240        }
2241
2242        public void setWindowFrame(Drawable drawable) {
2243            if (getForeground() != drawable) {
2244                setForeground(drawable);
2245                if (drawable != null) {
2246                    drawable.getPadding(mFramePadding);
2247                } else {
2248                    mFramePadding.setEmpty();
2249                }
2250                drawableChanged();
2251            }
2252        }
2253
2254        @Override
2255        protected boolean fitSystemWindows(Rect insets) {
2256            mFrameOffsets.set(insets);
2257            if (getForeground() != null) {
2258                drawableChanged();
2259            }
2260            return super.fitSystemWindows(insets);
2261        }
2262
2263        private void drawableChanged() {
2264            if (mChanging) {
2265                return;
2266            }
2267
2268            setPadding(mFramePadding.left + mBackgroundPadding.left, mFramePadding.top
2269                    + mBackgroundPadding.top, mFramePadding.right + mBackgroundPadding.right,
2270                    mFramePadding.bottom + mBackgroundPadding.bottom);
2271            requestLayout();
2272            invalidate();
2273
2274            int opacity = PixelFormat.OPAQUE;
2275
2276            // Note: if there is no background, we will assume opaque. The
2277            // common case seems to be that an application sets there to be
2278            // no background so it can draw everything itself. For that,
2279            // we would like to assume OPAQUE and let the app force it to
2280            // the slower TRANSLUCENT mode if that is really what it wants.
2281            Drawable bg = getBackground();
2282            Drawable fg = getForeground();
2283            if (bg != null) {
2284                if (fg == null) {
2285                    opacity = bg.getOpacity();
2286                } else if (mFramePadding.left <= 0 && mFramePadding.top <= 0
2287                        && mFramePadding.right <= 0 && mFramePadding.bottom <= 0) {
2288                    // If the frame padding is zero, then we can be opaque
2289                    // if either the frame -or- the background is opaque.
2290                    int fop = fg.getOpacity();
2291                    int bop = bg.getOpacity();
2292                    if (false)
2293                        Log.v(TAG, "Background opacity: " + bop + ", Frame opacity: " + fop);
2294                    if (fop == PixelFormat.OPAQUE || bop == PixelFormat.OPAQUE) {
2295                        opacity = PixelFormat.OPAQUE;
2296                    } else if (fop == PixelFormat.UNKNOWN) {
2297                        opacity = bop;
2298                    } else if (bop == PixelFormat.UNKNOWN) {
2299                        opacity = fop;
2300                    } else {
2301                        opacity = Drawable.resolveOpacity(fop, bop);
2302                    }
2303                } else {
2304                    // For now we have to assume translucent if there is a
2305                    // frame with padding... there is no way to tell if the
2306                    // frame and background together will draw all pixels.
2307                    if (false)
2308                        Log.v(TAG, "Padding: " + mFramePadding);
2309                    opacity = PixelFormat.TRANSLUCENT;
2310                }
2311            }
2312
2313            if (false)
2314                Log.v(TAG, "Background: " + bg + ", Frame: " + fg);
2315            if (false)
2316                Log.v(TAG, "Selected default opacity: " + opacity);
2317
2318            mDefaultOpacity = opacity;
2319            if (mFeatureId < 0) {
2320                setDefaultWindowFormat(opacity);
2321            }
2322        }
2323
2324        @Override
2325        public void onWindowFocusChanged(boolean hasWindowFocus) {
2326            super.onWindowFocusChanged(hasWindowFocus);
2327
2328            // If the user is chording a menu shortcut, release the chord since
2329            // this window lost focus
2330            if (!hasWindowFocus && mPanelChordingKey != 0) {
2331                closePanel(FEATURE_OPTIONS_PANEL);
2332            }
2333
2334            final Callback cb = getCallback();
2335            if (cb != null && !isDestroyed() && mFeatureId < 0) {
2336                cb.onWindowFocusChanged(hasWindowFocus);
2337            }
2338        }
2339
2340        void updateWindowResizeState() {
2341            Drawable bg = getBackground();
2342            hackTurnOffWindowResizeAnim(bg == null || bg.getOpacity()
2343                    != PixelFormat.OPAQUE);
2344        }
2345
2346        @Override
2347        protected void onAttachedToWindow() {
2348            super.onAttachedToWindow();
2349
2350            updateWindowResizeState();
2351
2352            final Callback cb = getCallback();
2353            if (cb != null && !isDestroyed() && mFeatureId < 0) {
2354                cb.onAttachedToWindow();
2355            }
2356
2357            if (mFeatureId == -1) {
2358                /*
2359                 * The main window has been attached, try to restore any panels
2360                 * that may have been open before. This is called in cases where
2361                 * an activity is being killed for configuration change and the
2362                 * menu was open. When the activity is recreated, the menu
2363                 * should be shown again.
2364                 */
2365                openPanelsAfterRestore();
2366            }
2367        }
2368
2369        @Override
2370        protected void onDetachedFromWindow() {
2371            super.onDetachedFromWindow();
2372
2373            final Callback cb = getCallback();
2374            if (cb != null && mFeatureId < 0) {
2375                cb.onDetachedFromWindow();
2376            }
2377
2378            if (mActionBar != null) {
2379                mActionBar.dismissPopupMenus();
2380            }
2381
2382            if (mActionModePopup != null) {
2383                removeCallbacks(mShowActionModePopup);
2384                if (mActionModePopup.isShowing()) {
2385                    mActionModePopup.dismiss();
2386                }
2387                mActionModePopup = null;
2388            }
2389
2390            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
2391            if (st != null && st.menu != null && mFeatureId < 0) {
2392                st.menu.close();
2393            }
2394        }
2395
2396        @Override
2397        public void onCloseSystemDialogs(String reason) {
2398            if (mFeatureId >= 0) {
2399                closeAllPanels();
2400            }
2401        }
2402
2403        public android.view.SurfaceHolder.Callback2 willYouTakeTheSurface() {
2404            return mFeatureId < 0 ? mTakeSurfaceCallback : null;
2405        }
2406
2407        public InputQueue.Callback willYouTakeTheInputQueue() {
2408            return mFeatureId < 0 ? mTakeInputQueueCallback : null;
2409        }
2410
2411        public void setSurfaceType(int type) {
2412            PhoneWindow.this.setType(type);
2413        }
2414
2415        public void setSurfaceFormat(int format) {
2416            PhoneWindow.this.setFormat(format);
2417        }
2418
2419        public void setSurfaceKeepScreenOn(boolean keepOn) {
2420            if (keepOn) PhoneWindow.this.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
2421            else PhoneWindow.this.clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
2422        }
2423
2424        /**
2425         * Clears out internal reference when the action mode is destroyed.
2426         */
2427        private class ActionModeCallbackWrapper implements ActionMode.Callback {
2428            private ActionMode.Callback mWrapped;
2429
2430            public ActionModeCallbackWrapper(ActionMode.Callback wrapped) {
2431                mWrapped = wrapped;
2432            }
2433
2434            public boolean onCreateActionMode(ActionMode mode, Menu menu) {
2435                return mWrapped.onCreateActionMode(mode, menu);
2436            }
2437
2438            public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
2439                return mWrapped.onPrepareActionMode(mode, menu);
2440            }
2441
2442            public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
2443                return mWrapped.onActionItemClicked(mode, item);
2444            }
2445
2446            public void onDestroyActionMode(ActionMode mode) {
2447                mWrapped.onDestroyActionMode(mode);
2448                if (mActionModePopup != null) {
2449                    removeCallbacks(mShowActionModePopup);
2450                    mActionModePopup.dismiss();
2451                } else if (mActionModeView != null) {
2452                    mActionModeView.setVisibility(GONE);
2453                }
2454                if (mActionModeView != null) {
2455                    mActionModeView.removeAllViews();
2456                }
2457                if (getCallback() != null && !isDestroyed()) {
2458                    try {
2459                        getCallback().onActionModeFinished(mActionMode);
2460                    } catch (AbstractMethodError ame) {
2461                        // Older apps might not implement this callback method.
2462                    }
2463                }
2464                mActionMode = null;
2465            }
2466        }
2467    }
2468
2469    protected DecorView generateDecor() {
2470        return new DecorView(getContext(), -1);
2471    }
2472
2473    protected void setFeatureFromAttrs(int featureId, TypedArray attrs,
2474            int drawableAttr, int alphaAttr) {
2475        Drawable d = attrs.getDrawable(drawableAttr);
2476        if (d != null) {
2477            requestFeature(featureId);
2478            setFeatureDefaultDrawable(featureId, d);
2479        }
2480        if ((getFeatures() & (1 << featureId)) != 0) {
2481            int alpha = attrs.getInt(alphaAttr, -1);
2482            if (alpha >= 0) {
2483                setFeatureDrawableAlpha(featureId, alpha);
2484            }
2485        }
2486    }
2487
2488    protected ViewGroup generateLayout(DecorView decor) {
2489        // Apply data from current theme.
2490
2491        TypedArray a = getWindowStyle();
2492
2493        if (false) {
2494            System.out.println("From style:");
2495            String s = "Attrs:";
2496            for (int i = 0; i < com.android.internal.R.styleable.Window.length; i++) {
2497                s = s + " " + Integer.toHexString(com.android.internal.R.styleable.Window[i]) + "="
2498                        + a.getString(i);
2499            }
2500            System.out.println(s);
2501        }
2502
2503        mIsFloating = a.getBoolean(com.android.internal.R.styleable.Window_windowIsFloating, false);
2504        int flagsToUpdate = (FLAG_LAYOUT_IN_SCREEN|FLAG_LAYOUT_INSET_DECOR)
2505                & (~getForcedWindowFlags());
2506        if (mIsFloating) {
2507            setLayout(WRAP_CONTENT, WRAP_CONTENT);
2508            setFlags(0, flagsToUpdate);
2509        } else {
2510            setFlags(FLAG_LAYOUT_IN_SCREEN|FLAG_LAYOUT_INSET_DECOR, flagsToUpdate);
2511        }
2512
2513        if (a.getBoolean(com.android.internal.R.styleable.Window_windowNoTitle, false)) {
2514            requestFeature(FEATURE_NO_TITLE);
2515        } else if (a.getBoolean(com.android.internal.R.styleable.Window_windowActionBar, false)) {
2516            // Don't allow an action bar if there is no title.
2517            requestFeature(FEATURE_ACTION_BAR);
2518        }
2519
2520        if (a.getBoolean(com.android.internal.R.styleable.Window_windowActionBarOverlay, false)) {
2521            requestFeature(FEATURE_ACTION_BAR_OVERLAY);
2522        }
2523
2524        if (a.getBoolean(com.android.internal.R.styleable.Window_windowActionModeOverlay, false)) {
2525            requestFeature(FEATURE_ACTION_MODE_OVERLAY);
2526        }
2527
2528        if (a.getBoolean(com.android.internal.R.styleable.Window_windowFullscreen, false)) {
2529            setFlags(FLAG_FULLSCREEN, FLAG_FULLSCREEN&(~getForcedWindowFlags()));
2530        }
2531
2532        if (a.getBoolean(com.android.internal.R.styleable.Window_windowShowWallpaper, false)) {
2533            setFlags(FLAG_SHOW_WALLPAPER, FLAG_SHOW_WALLPAPER&(~getForcedWindowFlags()));
2534        }
2535
2536        if (a.getBoolean(com.android.internal.R.styleable.Window_windowEnableSplitTouch,
2537                getContext().getApplicationInfo().targetSdkVersion
2538                        >= android.os.Build.VERSION_CODES.HONEYCOMB)) {
2539            setFlags(FLAG_SPLIT_TOUCH, FLAG_SPLIT_TOUCH&(~getForcedWindowFlags()));
2540        }
2541
2542        a.getValue(com.android.internal.R.styleable.Window_windowMinWidthMajor, mMinWidthMajor);
2543        a.getValue(com.android.internal.R.styleable.Window_windowMinWidthMinor, mMinWidthMinor);
2544
2545        final Context context = getContext();
2546        final int targetSdk = context.getApplicationInfo().targetSdkVersion;
2547        final boolean targetPreHoneycomb = targetSdk < android.os.Build.VERSION_CODES.HONEYCOMB;
2548        final boolean targetPreIcs = targetSdk < android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH;
2549        final boolean targetHcNeedsOptions = context.getResources().getBoolean(
2550                com.android.internal.R.bool.target_honeycomb_needs_options_menu);
2551        final boolean noActionBar = !hasFeature(FEATURE_ACTION_BAR) || hasFeature(FEATURE_NO_TITLE);
2552
2553        if (targetPreHoneycomb || (targetPreIcs && targetHcNeedsOptions && noActionBar)) {
2554            addFlags(WindowManager.LayoutParams.FLAG_NEEDS_MENU_KEY);
2555        }
2556
2557        if (mAlwaysReadCloseOnTouchAttr || getContext().getApplicationInfo().targetSdkVersion
2558                >= android.os.Build.VERSION_CODES.HONEYCOMB) {
2559            if (a.getBoolean(
2560                    com.android.internal.R.styleable.Window_windowCloseOnTouchOutside,
2561                    false)) {
2562                setCloseOnTouchOutsideIfNotSet(true);
2563            }
2564        }
2565
2566        WindowManager.LayoutParams params = getAttributes();
2567
2568        if (!hasSoftInputMode()) {
2569            params.softInputMode = a.getInt(
2570                    com.android.internal.R.styleable.Window_windowSoftInputMode,
2571                    params.softInputMode);
2572        }
2573
2574        if (a.getBoolean(com.android.internal.R.styleable.Window_backgroundDimEnabled,
2575                mIsFloating)) {
2576            /* All dialogs should have the window dimmed */
2577            if ((getForcedWindowFlags()&WindowManager.LayoutParams.FLAG_DIM_BEHIND) == 0) {
2578                params.flags |= WindowManager.LayoutParams.FLAG_DIM_BEHIND;
2579            }
2580            if (!haveDimAmount()) {
2581                params.dimAmount = a.getFloat(
2582                        android.R.styleable.Window_backgroundDimAmount, 0.5f);
2583            }
2584        }
2585
2586        if (params.windowAnimations == 0) {
2587            params.windowAnimations = a.getResourceId(
2588                    com.android.internal.R.styleable.Window_windowAnimationStyle, 0);
2589        }
2590
2591        // The rest are only done if this window is not embedded; otherwise,
2592        // the values are inherited from our container.
2593        if (getContainer() == null) {
2594            if (mBackgroundDrawable == null) {
2595                if (mBackgroundResource == 0) {
2596                    mBackgroundResource = a.getResourceId(
2597                            com.android.internal.R.styleable.Window_windowBackground, 0);
2598                }
2599                if (mFrameResource == 0) {
2600                    mFrameResource = a.getResourceId(com.android.internal.R.styleable.Window_windowFrame, 0);
2601                }
2602                if (false) {
2603                    System.out.println("Background: "
2604                            + Integer.toHexString(mBackgroundResource) + " Frame: "
2605                            + Integer.toHexString(mFrameResource));
2606                }
2607            }
2608            mTextColor = a.getColor(com.android.internal.R.styleable.Window_textColor, 0xFF000000);
2609        }
2610
2611        // Inflate the window decor.
2612
2613        int layoutResource;
2614        int features = getLocalFeatures();
2615        // System.out.println("Features: 0x" + Integer.toHexString(features));
2616        if ((features & ((1 << FEATURE_LEFT_ICON) | (1 << FEATURE_RIGHT_ICON))) != 0) {
2617            if (mIsFloating) {
2618                TypedValue res = new TypedValue();
2619                getContext().getTheme().resolveAttribute(
2620                        com.android.internal.R.attr.dialogTitleIconsDecorLayout, res, true);
2621                layoutResource = res.resourceId;
2622            } else {
2623                layoutResource = com.android.internal.R.layout.screen_title_icons;
2624            }
2625            // XXX Remove this once action bar supports these features.
2626            removeFeature(FEATURE_ACTION_BAR);
2627            // System.out.println("Title Icons!");
2628        } else if ((features & ((1 << FEATURE_PROGRESS) | (1 << FEATURE_INDETERMINATE_PROGRESS))) != 0
2629                && (features & (1 << FEATURE_ACTION_BAR)) == 0) {
2630            // Special case for a window with only a progress bar (and title).
2631            // XXX Need to have a no-title version of embedded windows.
2632            layoutResource = com.android.internal.R.layout.screen_progress;
2633            // System.out.println("Progress!");
2634        } else if ((features & (1 << FEATURE_CUSTOM_TITLE)) != 0) {
2635            // Special case for a window with a custom title.
2636            // If the window is floating, we need a dialog layout
2637            if (mIsFloating) {
2638                TypedValue res = new TypedValue();
2639                getContext().getTheme().resolveAttribute(
2640                        com.android.internal.R.attr.dialogCustomTitleDecorLayout, res, true);
2641                layoutResource = res.resourceId;
2642            } else {
2643                layoutResource = com.android.internal.R.layout.screen_custom_title;
2644            }
2645            // XXX Remove this once action bar supports these features.
2646            removeFeature(FEATURE_ACTION_BAR);
2647        } else if ((features & (1 << FEATURE_NO_TITLE)) == 0) {
2648            // If no other features and not embedded, only need a title.
2649            // If the window is floating, we need a dialog layout
2650            if (mIsFloating) {
2651                TypedValue res = new TypedValue();
2652                getContext().getTheme().resolveAttribute(
2653                        com.android.internal.R.attr.dialogTitleDecorLayout, res, true);
2654                layoutResource = res.resourceId;
2655            } else if ((features & (1 << FEATURE_ACTION_BAR)) != 0) {
2656                if ((features & (1 << FEATURE_ACTION_BAR_OVERLAY)) != 0) {
2657                    layoutResource = com.android.internal.R.layout.screen_action_bar_overlay;
2658                } else {
2659                    layoutResource = com.android.internal.R.layout.screen_action_bar;
2660                }
2661            } else {
2662                layoutResource = com.android.internal.R.layout.screen_title;
2663            }
2664            // System.out.println("Title!");
2665        } else if ((features & (1 << FEATURE_ACTION_MODE_OVERLAY)) != 0) {
2666            layoutResource = com.android.internal.R.layout.screen_simple_overlay_action_mode;
2667        } else {
2668            // Embedded, so no decoration is needed.
2669            layoutResource = com.android.internal.R.layout.screen_simple;
2670            // System.out.println("Simple!");
2671        }
2672
2673        mDecor.startChanging();
2674
2675        View in = mLayoutInflater.inflate(layoutResource, null);
2676        decor.addView(in, new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));
2677
2678        ViewGroup contentParent = (ViewGroup)findViewById(ID_ANDROID_CONTENT);
2679        if (contentParent == null) {
2680            throw new RuntimeException("Window couldn't find content container view");
2681        }
2682
2683        if ((features & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
2684            ProgressBar progress = getCircularProgressBar(false);
2685            if (progress != null) {
2686                progress.setIndeterminate(true);
2687            }
2688        }
2689
2690        // Remaining setup -- of background and title -- that only applies
2691        // to top-level windows.
2692        if (getContainer() == null) {
2693            Drawable drawable = mBackgroundDrawable;
2694            if (mBackgroundResource != 0) {
2695                drawable = getContext().getResources().getDrawable(mBackgroundResource);
2696            }
2697            mDecor.setWindowBackground(drawable);
2698            drawable = null;
2699            if (mFrameResource != 0) {
2700                drawable = getContext().getResources().getDrawable(mFrameResource);
2701            }
2702            mDecor.setWindowFrame(drawable);
2703
2704            // System.out.println("Text=" + Integer.toHexString(mTextColor) +
2705            // " Sel=" + Integer.toHexString(mTextSelectedColor) +
2706            // " Title=" + Integer.toHexString(mTitleColor));
2707
2708            if (mTitleColor == 0) {
2709                mTitleColor = mTextColor;
2710            }
2711
2712            if (mTitle != null) {
2713                setTitle(mTitle);
2714            }
2715            setTitleColor(mTitleColor);
2716        }
2717
2718        mDecor.finishChanging();
2719
2720        return contentParent;
2721    }
2722
2723    /** @hide */
2724    public void alwaysReadCloseOnTouchAttr() {
2725        mAlwaysReadCloseOnTouchAttr = true;
2726    }
2727
2728    private void installDecor() {
2729        if (mDecor == null) {
2730            mDecor = generateDecor();
2731            mDecor.setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
2732            mDecor.setIsRootNamespace(true);
2733        }
2734        if (mContentParent == null) {
2735            mContentParent = generateLayout(mDecor);
2736
2737            mTitleView = (TextView)findViewById(com.android.internal.R.id.title);
2738            if (mTitleView != null) {
2739                if ((getLocalFeatures() & (1 << FEATURE_NO_TITLE)) != 0) {
2740                    View titleContainer = findViewById(com.android.internal.R.id.title_container);
2741                    if (titleContainer != null) {
2742                        titleContainer.setVisibility(View.GONE);
2743                    } else {
2744                        mTitleView.setVisibility(View.GONE);
2745                    }
2746                    if (mContentParent instanceof FrameLayout) {
2747                        ((FrameLayout)mContentParent).setForeground(null);
2748                    }
2749                } else {
2750                    mTitleView.setText(mTitle);
2751                }
2752            } else {
2753                mActionBar = (ActionBarView) findViewById(com.android.internal.R.id.action_bar);
2754                if (mActionBar != null) {
2755                    mActionBar.setWindowCallback(getCallback());
2756                    if (mActionBar.getTitle() == null) {
2757                        mActionBar.setWindowTitle(mTitle);
2758                    }
2759                    final int localFeatures = getLocalFeatures();
2760                    if ((localFeatures & (1 << FEATURE_PROGRESS)) != 0) {
2761                        mActionBar.initProgress();
2762                    }
2763                    if ((localFeatures & (1 << FEATURE_INDETERMINATE_PROGRESS)) != 0) {
2764                        mActionBar.initIndeterminateProgress();
2765                    }
2766
2767                    boolean splitActionBar = false;
2768                    final boolean splitWhenNarrow =
2769                            (mUiOptions & ActivityInfo.UIOPTION_SPLIT_ACTION_BAR_WHEN_NARROW) != 0;
2770                    if (splitWhenNarrow) {
2771                        splitActionBar = getContext().getResources().getBoolean(
2772                                com.android.internal.R.bool.split_action_bar_is_narrow);
2773                    } else {
2774                        splitActionBar = getWindowStyle().getBoolean(
2775                                com.android.internal.R.styleable.Window_windowSplitActionBar, false);
2776                    }
2777                    final ActionBarContainer splitView = (ActionBarContainer) findViewById(
2778                            com.android.internal.R.id.split_action_bar);
2779                    if (splitView != null) {
2780                        mActionBar.setSplitView(splitView);
2781                        mActionBar.setSplitActionBar(splitActionBar);
2782                        mActionBar.setSplitWhenNarrow(splitWhenNarrow);
2783
2784                        final ActionBarContextView cab = (ActionBarContextView) findViewById(
2785                                com.android.internal.R.id.action_context_bar);
2786                        cab.setSplitView(splitView);
2787                        cab.setSplitActionBar(splitActionBar);
2788                        cab.setSplitWhenNarrow(splitWhenNarrow);
2789                    } else if (splitActionBar) {
2790                        Log.e(TAG, "Requested split action bar with " +
2791                                "incompatible window decor! Ignoring request.");
2792                    }
2793
2794                    // Post the panel invalidate for later; avoid application onCreateOptionsMenu
2795                    // being called in the middle of onCreate or similar.
2796                    mDecor.post(new Runnable() {
2797                        public void run() {
2798                            // Invalidate if the panel menu hasn't been created before this.
2799                            PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, false);
2800                            if (!isDestroyed() && (st == null || st.menu == null)) {
2801                                invalidatePanelMenu(FEATURE_ACTION_BAR);
2802                            }
2803                        }
2804                    });
2805                }
2806            }
2807        }
2808    }
2809
2810    private Drawable loadImageURI(Uri uri) {
2811        try {
2812            return Drawable.createFromStream(
2813                    getContext().getContentResolver().openInputStream(uri), null);
2814        } catch (Exception e) {
2815            Log.w(TAG, "Unable to open content: " + uri);
2816        }
2817        return null;
2818    }
2819
2820    private DrawableFeatureState getDrawableState(int featureId, boolean required) {
2821        if ((getFeatures() & (1 << featureId)) == 0) {
2822            if (!required) {
2823                return null;
2824            }
2825            throw new RuntimeException("The feature has not been requested");
2826        }
2827
2828        DrawableFeatureState[] ar;
2829        if ((ar = mDrawables) == null || ar.length <= featureId) {
2830            DrawableFeatureState[] nar = new DrawableFeatureState[featureId + 1];
2831            if (ar != null) {
2832                System.arraycopy(ar, 0, nar, 0, ar.length);
2833            }
2834            mDrawables = ar = nar;
2835        }
2836
2837        DrawableFeatureState st = ar[featureId];
2838        if (st == null) {
2839            ar[featureId] = st = new DrawableFeatureState(featureId);
2840        }
2841        return st;
2842    }
2843
2844    /**
2845     * Gets a panel's state based on its feature ID.
2846     *
2847     * @param featureId The feature ID of the panel.
2848     * @param required Whether the panel is required (if it is required and it
2849     *            isn't in our features, this throws an exception).
2850     * @return The panel state.
2851     */
2852    private PanelFeatureState getPanelState(int featureId, boolean required) {
2853        return getPanelState(featureId, required, null);
2854    }
2855
2856    /**
2857     * Gets a panel's state based on its feature ID.
2858     *
2859     * @param featureId The feature ID of the panel.
2860     * @param required Whether the panel is required (if it is required and it
2861     *            isn't in our features, this throws an exception).
2862     * @param convertPanelState Optional: If the panel state does not exist, use
2863     *            this as the panel state.
2864     * @return The panel state.
2865     */
2866    private PanelFeatureState getPanelState(int featureId, boolean required,
2867            PanelFeatureState convertPanelState) {
2868        if ((getFeatures() & (1 << featureId)) == 0) {
2869            if (!required) {
2870                return null;
2871            }
2872            throw new RuntimeException("The feature has not been requested");
2873        }
2874
2875        PanelFeatureState[] ar;
2876        if ((ar = mPanels) == null || ar.length <= featureId) {
2877            PanelFeatureState[] nar = new PanelFeatureState[featureId + 1];
2878            if (ar != null) {
2879                System.arraycopy(ar, 0, nar, 0, ar.length);
2880            }
2881            mPanels = ar = nar;
2882        }
2883
2884        PanelFeatureState st = ar[featureId];
2885        if (st == null) {
2886            ar[featureId] = st = (convertPanelState != null)
2887                    ? convertPanelState
2888                    : new PanelFeatureState(featureId);
2889        }
2890        return st;
2891    }
2892
2893    @Override
2894    public final void setChildDrawable(int featureId, Drawable drawable) {
2895        DrawableFeatureState st = getDrawableState(featureId, true);
2896        st.child = drawable;
2897        updateDrawable(featureId, st, false);
2898    }
2899
2900    @Override
2901    public final void setChildInt(int featureId, int value) {
2902        updateInt(featureId, value, false);
2903    }
2904
2905    @Override
2906    public boolean isShortcutKey(int keyCode, KeyEvent event) {
2907        PanelFeatureState st = getPanelState(FEATURE_OPTIONS_PANEL, true);
2908        return st.menu != null && st.menu.isShortcutKey(keyCode, event);
2909    }
2910
2911    private void updateDrawable(int featureId, DrawableFeatureState st, boolean fromResume) {
2912        // Do nothing if the decor is not yet installed... an update will
2913        // need to be forced when we eventually become active.
2914        if (mContentParent == null) {
2915            return;
2916        }
2917
2918        final int featureMask = 1 << featureId;
2919
2920        if ((getFeatures() & featureMask) == 0 && !fromResume) {
2921            return;
2922        }
2923
2924        Drawable drawable = null;
2925        if (st != null) {
2926            drawable = st.child;
2927            if (drawable == null)
2928                drawable = st.local;
2929            if (drawable == null)
2930                drawable = st.def;
2931        }
2932        if ((getLocalFeatures() & featureMask) == 0) {
2933            if (getContainer() != null) {
2934                if (isActive() || fromResume) {
2935                    getContainer().setChildDrawable(featureId, drawable);
2936                }
2937            }
2938        } else if (st != null && (st.cur != drawable || st.curAlpha != st.alpha)) {
2939            // System.out.println("Drawable changed: old=" + st.cur
2940            // + ", new=" + drawable);
2941            st.cur = drawable;
2942            st.curAlpha = st.alpha;
2943            onDrawableChanged(featureId, drawable, st.alpha);
2944        }
2945    }
2946
2947    private void updateInt(int featureId, int value, boolean fromResume) {
2948
2949        // Do nothing if the decor is not yet installed... an update will
2950        // need to be forced when we eventually become active.
2951        if (mContentParent == null) {
2952            return;
2953        }
2954
2955        final int featureMask = 1 << featureId;
2956
2957        if ((getFeatures() & featureMask) == 0 && !fromResume) {
2958            return;
2959        }
2960
2961        if ((getLocalFeatures() & featureMask) == 0) {
2962            if (getContainer() != null) {
2963                getContainer().setChildInt(featureId, value);
2964            }
2965        } else {
2966            onIntChanged(featureId, value);
2967        }
2968    }
2969
2970    private ImageView getLeftIconView() {
2971        if (mLeftIconView != null) {
2972            return mLeftIconView;
2973        }
2974        if (mContentParent == null) {
2975            installDecor();
2976        }
2977        return (mLeftIconView = (ImageView)findViewById(com.android.internal.R.id.left_icon));
2978    }
2979
2980    private ProgressBar getCircularProgressBar(boolean shouldInstallDecor) {
2981        if (mCircularProgressBar != null) {
2982            return mCircularProgressBar;
2983        }
2984        if (mContentParent == null && shouldInstallDecor) {
2985            installDecor();
2986        }
2987        mCircularProgressBar = (ProgressBar) findViewById(com.android.internal.R.id.progress_circular);
2988        if (mCircularProgressBar != null) {
2989            mCircularProgressBar.setVisibility(View.INVISIBLE);
2990        }
2991        return mCircularProgressBar;
2992    }
2993
2994    private ProgressBar getHorizontalProgressBar(boolean shouldInstallDecor) {
2995        if (mHorizontalProgressBar != null) {
2996            return mHorizontalProgressBar;
2997        }
2998        if (mContentParent == null && shouldInstallDecor) {
2999            installDecor();
3000        }
3001        mHorizontalProgressBar = (ProgressBar) findViewById(com.android.internal.R.id.progress_horizontal);
3002        if (mHorizontalProgressBar != null) {
3003            mHorizontalProgressBar.setVisibility(View.INVISIBLE);
3004        }
3005        return mHorizontalProgressBar;
3006    }
3007
3008    private ImageView getRightIconView() {
3009        if (mRightIconView != null) {
3010            return mRightIconView;
3011        }
3012        if (mContentParent == null) {
3013            installDecor();
3014        }
3015        return (mRightIconView = (ImageView)findViewById(com.android.internal.R.id.right_icon));
3016    }
3017
3018    /**
3019     * Helper method for calling the {@link Callback#onPanelClosed(int, Menu)}
3020     * callback. This method will grab whatever extra state is needed for the
3021     * callback that isn't given in the parameters. If the panel is not open,
3022     * this will not perform the callback.
3023     *
3024     * @param featureId Feature ID of the panel that was closed. Must be given.
3025     * @param panel Panel that was closed. Optional but useful if there is no
3026     *            menu given.
3027     * @param menu The menu that was closed. Optional, but give if you have.
3028     */
3029    private void callOnPanelClosed(int featureId, PanelFeatureState panel, Menu menu) {
3030        final Callback cb = getCallback();
3031        if (cb == null)
3032            return;
3033
3034        // Try to get a menu
3035        if (menu == null) {
3036            // Need a panel to grab the menu, so try to get that
3037            if (panel == null) {
3038                if ((featureId >= 0) && (featureId < mPanels.length)) {
3039                    panel = mPanels[featureId];
3040                }
3041            }
3042
3043            if (panel != null) {
3044                // menu still may be null, which is okay--we tried our best
3045                menu = panel.menu;
3046            }
3047        }
3048
3049        // If the panel is not open, do not callback
3050        if ((panel != null) && (!panel.isOpen))
3051            return;
3052
3053        if (!isDestroyed()) {
3054            cb.onPanelClosed(featureId, menu);
3055        }
3056    }
3057
3058    /**
3059     * Helper method for adding launch-search to most applications. Opens the
3060     * search window using default settings.
3061     *
3062     * @return true if search window opened
3063     */
3064    private boolean launchDefaultSearch() {
3065        final Callback cb = getCallback();
3066        if (cb == null || isDestroyed()) {
3067            return false;
3068        } else {
3069            sendCloseSystemWindows("search");
3070            return cb.onSearchRequested();
3071        }
3072    }
3073
3074    @Override
3075    public void setVolumeControlStream(int streamType) {
3076        mVolumeControlStreamType = streamType;
3077    }
3078
3079    @Override
3080    public int getVolumeControlStream() {
3081        return mVolumeControlStreamType;
3082    }
3083
3084    private static final class DrawableFeatureState {
3085        DrawableFeatureState(int _featureId) {
3086            featureId = _featureId;
3087        }
3088
3089        final int featureId;
3090
3091        int resid;
3092
3093        Uri uri;
3094
3095        Drawable local;
3096
3097        Drawable child;
3098
3099        Drawable def;
3100
3101        Drawable cur;
3102
3103        int alpha = 255;
3104
3105        int curAlpha = 255;
3106    }
3107
3108    private static final class PanelFeatureState {
3109
3110        /** Feature ID for this panel. */
3111        int featureId;
3112
3113        // Information pulled from the style for this panel.
3114
3115        int background;
3116
3117        /** The background when the panel spans the entire available width. */
3118        int fullBackground;
3119
3120        int gravity;
3121
3122        int x;
3123
3124        int y;
3125
3126        int windowAnimations;
3127
3128        /** Dynamic state of the panel. */
3129        DecorView decorView;
3130
3131        /** The panel that was returned by onCreatePanelView(). */
3132        View createdPanelView;
3133
3134        /** The panel that we are actually showing. */
3135        View shownPanelView;
3136
3137        /** Use {@link #setMenu} to set this. */
3138        MenuBuilder menu;
3139
3140        IconMenuPresenter iconMenuPresenter;
3141        ListMenuPresenter listMenuPresenter;
3142
3143        /** true if this menu will show in single-list compact mode */
3144        boolean isCompact;
3145
3146        /** Theme resource ID for list elements of the panel menu */
3147        int listPresenterTheme;
3148
3149        /**
3150         * Whether the panel has been prepared (see
3151         * {@link PhoneWindow#preparePanel}).
3152         */
3153        boolean isPrepared;
3154
3155        /**
3156         * Whether an item's action has been performed. This happens in obvious
3157         * scenarios (user clicks on menu item), but can also happen with
3158         * chording menu+(shortcut key).
3159         */
3160        boolean isHandled;
3161
3162        boolean isOpen;
3163
3164        /**
3165         * True if the menu is in expanded mode, false if the menu is in icon
3166         * mode
3167         */
3168        boolean isInExpandedMode;
3169
3170        public boolean qwertyMode;
3171
3172        boolean refreshDecorView;
3173
3174        boolean refreshMenuContent;
3175
3176        boolean wasLastOpen;
3177
3178        boolean wasLastExpanded;
3179
3180        /**
3181         * Contains the state of the menu when told to freeze.
3182         */
3183        Bundle frozenMenuState;
3184
3185        /**
3186         * Contains the state of associated action views when told to freeze.
3187         * These are saved across invalidations.
3188         */
3189        Bundle frozenActionViewState;
3190
3191        PanelFeatureState(int featureId) {
3192            this.featureId = featureId;
3193
3194            refreshDecorView = false;
3195        }
3196
3197        public boolean isInListMode() {
3198            return isInExpandedMode || isCompact;
3199        }
3200
3201        public boolean hasPanelItems() {
3202            if (shownPanelView == null) return false;
3203            if (createdPanelView != null) return true;
3204
3205            if (isCompact || isInExpandedMode) {
3206                return listMenuPresenter.getAdapter().getCount() > 0;
3207            } else {
3208                return ((ViewGroup) shownPanelView).getChildCount() > 0;
3209            }
3210        }
3211
3212        /**
3213         * Unregister and free attached MenuPresenters. They will be recreated as needed.
3214         */
3215        public void clearMenuPresenters() {
3216            if (menu != null) {
3217                menu.removeMenuPresenter(iconMenuPresenter);
3218                menu.removeMenuPresenter(listMenuPresenter);
3219            }
3220            iconMenuPresenter = null;
3221            listMenuPresenter = null;
3222        }
3223
3224        void setStyle(Context context) {
3225            TypedArray a = context.obtainStyledAttributes(com.android.internal.R.styleable.Theme);
3226            background = a.getResourceId(
3227                    com.android.internal.R.styleable.Theme_panelBackground, 0);
3228            fullBackground = a.getResourceId(
3229                    com.android.internal.R.styleable.Theme_panelFullBackground, 0);
3230            windowAnimations = a.getResourceId(
3231                    com.android.internal.R.styleable.Theme_windowAnimationStyle, 0);
3232            isCompact = a.getBoolean(
3233                    com.android.internal.R.styleable.Theme_panelMenuIsCompact, false);
3234            listPresenterTheme = a.getResourceId(
3235                    com.android.internal.R.styleable.Theme_panelMenuListTheme,
3236                    com.android.internal.R.style.Theme_ExpandedMenu);
3237            a.recycle();
3238        }
3239
3240        void setMenu(MenuBuilder menu) {
3241            if (menu == this.menu) return;
3242
3243            if (this.menu != null) {
3244                this.menu.removeMenuPresenter(iconMenuPresenter);
3245                this.menu.removeMenuPresenter(listMenuPresenter);
3246            }
3247            this.menu = menu;
3248            if (menu != null) {
3249                if (iconMenuPresenter != null) menu.addMenuPresenter(iconMenuPresenter);
3250                if (listMenuPresenter != null) menu.addMenuPresenter(listMenuPresenter);
3251            }
3252        }
3253
3254        MenuView getListMenuView(MenuPresenter.Callback cb) {
3255            if (menu == null) return null;
3256
3257            if (!isCompact) {
3258                getIconMenuView(cb); // Need this initialized to know where our offset goes
3259            }
3260
3261            if (listMenuPresenter == null) {
3262                listMenuPresenter = new ListMenuPresenter(
3263                        com.android.internal.R.layout.list_menu_item_layout, listPresenterTheme);
3264                listMenuPresenter.setCallback(cb);
3265                listMenuPresenter.setId(com.android.internal.R.id.list_menu_presenter);
3266                menu.addMenuPresenter(listMenuPresenter);
3267            }
3268
3269            if (iconMenuPresenter != null) {
3270                listMenuPresenter.setItemIndexOffset(
3271                        iconMenuPresenter.getNumActualItemsShown());
3272            }
3273            MenuView result = listMenuPresenter.getMenuView(decorView);
3274
3275            return result;
3276        }
3277
3278        MenuView getIconMenuView(MenuPresenter.Callback cb) {
3279            if (menu == null) return null;
3280
3281            if (iconMenuPresenter == null) {
3282                iconMenuPresenter = new IconMenuPresenter();
3283                iconMenuPresenter.setCallback(cb);
3284                iconMenuPresenter.setId(com.android.internal.R.id.icon_menu_presenter);
3285                menu.addMenuPresenter(iconMenuPresenter);
3286            }
3287
3288            MenuView result = iconMenuPresenter.getMenuView(decorView);
3289
3290            return result;
3291        }
3292
3293        Parcelable onSaveInstanceState() {
3294            SavedState savedState = new SavedState();
3295            savedState.featureId = featureId;
3296            savedState.isOpen = isOpen;
3297            savedState.isInExpandedMode = isInExpandedMode;
3298
3299            if (menu != null) {
3300                savedState.menuState = new Bundle();
3301                menu.savePresenterStates(savedState.menuState);
3302            }
3303
3304            return savedState;
3305        }
3306
3307        void onRestoreInstanceState(Parcelable state) {
3308            SavedState savedState = (SavedState) state;
3309            featureId = savedState.featureId;
3310            wasLastOpen = savedState.isOpen;
3311            wasLastExpanded = savedState.isInExpandedMode;
3312            frozenMenuState = savedState.menuState;
3313
3314            /*
3315             * A LocalActivityManager keeps the same instance of this class around.
3316             * The first time the menu is being shown after restoring, the
3317             * Activity.onCreateOptionsMenu should be called. But, if it is the
3318             * same instance then menu != null and we won't call that method.
3319             * We clear any cached views here. The caller should invalidatePanelMenu.
3320             */
3321            createdPanelView = null;
3322            shownPanelView = null;
3323            decorView = null;
3324        }
3325
3326        void applyFrozenState() {
3327            if (menu != null && frozenMenuState != null) {
3328                menu.restorePresenterStates(frozenMenuState);
3329                frozenMenuState = null;
3330            }
3331        }
3332
3333        private static class SavedState implements Parcelable {
3334            int featureId;
3335            boolean isOpen;
3336            boolean isInExpandedMode;
3337            Bundle menuState;
3338
3339            public int describeContents() {
3340                return 0;
3341            }
3342
3343            public void writeToParcel(Parcel dest, int flags) {
3344                dest.writeInt(featureId);
3345                dest.writeInt(isOpen ? 1 : 0);
3346                dest.writeInt(isInExpandedMode ? 1 : 0);
3347
3348                if (isOpen) {
3349                    dest.writeBundle(menuState);
3350                }
3351            }
3352
3353            private static SavedState readFromParcel(Parcel source) {
3354                SavedState savedState = new SavedState();
3355                savedState.featureId = source.readInt();
3356                savedState.isOpen = source.readInt() == 1;
3357                savedState.isInExpandedMode = source.readInt() == 1;
3358
3359                if (savedState.isOpen) {
3360                    savedState.menuState = source.readBundle();
3361                }
3362
3363                return savedState;
3364            }
3365
3366            public static final Parcelable.Creator<SavedState> CREATOR
3367                    = new Parcelable.Creator<SavedState>() {
3368                public SavedState createFromParcel(Parcel in) {
3369                    return readFromParcel(in);
3370                }
3371
3372                public SavedState[] newArray(int size) {
3373                    return new SavedState[size];
3374                }
3375            };
3376        }
3377
3378    }
3379
3380    static class RotationWatcher extends IRotationWatcher.Stub {
3381        private Handler mHandler;
3382        private final Runnable mRotationChanged = new Runnable() {
3383            public void run() {
3384                dispatchRotationChanged();
3385            }
3386        };
3387        private final ArrayList<WeakReference<PhoneWindow>> mWindows =
3388                new ArrayList<WeakReference<PhoneWindow>>();
3389        private boolean mIsWatching;
3390
3391        @Override
3392        public void onRotationChanged(int rotation) throws RemoteException {
3393            mHandler.post(mRotationChanged);
3394        }
3395
3396        public void addWindow(PhoneWindow phoneWindow) {
3397            synchronized (mWindows) {
3398                if (!mIsWatching) {
3399                    try {
3400                        WindowManagerHolder.sWindowManager.watchRotation(this);
3401                        mHandler = new Handler();
3402                        mIsWatching = true;
3403                    } catch (RemoteException ex) {
3404                        Log.e(TAG, "Couldn't start watching for device rotation", ex);
3405                    }
3406                }
3407                mWindows.add(new WeakReference<PhoneWindow>(phoneWindow));
3408            }
3409        }
3410
3411        public void removeWindow(PhoneWindow phoneWindow) {
3412            synchronized (mWindows) {
3413                int i = 0;
3414                while (i < mWindows.size()) {
3415                    final WeakReference<PhoneWindow> ref = mWindows.get(i);
3416                    final PhoneWindow win = ref.get();
3417                    if (win == null || win == phoneWindow) {
3418                        mWindows.remove(i);
3419                    } else {
3420                        i++;
3421                    }
3422                }
3423            }
3424        }
3425
3426        void dispatchRotationChanged() {
3427            synchronized (mWindows) {
3428                int i = 0;
3429                while (i < mWindows.size()) {
3430                    final WeakReference<PhoneWindow> ref = mWindows.get(i);
3431                    final PhoneWindow win = ref.get();
3432                    if (win != null) {
3433                        win.onOptionsPanelRotationChanged();
3434                        i++;
3435                    } else {
3436                        mWindows.remove(i);
3437                    }
3438                }
3439            }
3440        }
3441    }
3442
3443    /**
3444     * Simple implementation of MenuBuilder.Callback that:
3445     * <li> Opens a submenu when selected.
3446     * <li> Calls back to the callback's onMenuItemSelected when an item is
3447     * selected.
3448     */
3449    private final class DialogMenuCallback implements MenuBuilder.Callback, MenuPresenter.Callback {
3450        private int mFeatureId;
3451        private MenuDialogHelper mSubMenuHelper;
3452
3453        public DialogMenuCallback(int featureId) {
3454            mFeatureId = featureId;
3455        }
3456
3457        public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
3458            if (menu.getRootMenu() != menu) {
3459                onCloseSubMenu(menu);
3460            }
3461
3462            if (allMenusAreClosing) {
3463                Callback callback = getCallback();
3464                if (callback != null && !isDestroyed()) {
3465                    callback.onPanelClosed(mFeatureId, menu);
3466                }
3467
3468                if (menu == mContextMenu) {
3469                    dismissContextMenu();
3470                }
3471
3472                // Dismiss the submenu, if it is showing
3473                if (mSubMenuHelper != null) {
3474                    mSubMenuHelper.dismiss();
3475                    mSubMenuHelper = null;
3476                }
3477            }
3478        }
3479
3480        public void onCloseSubMenu(MenuBuilder menu) {
3481            Callback callback = getCallback();
3482            if (callback != null && !isDestroyed()) {
3483                callback.onPanelClosed(mFeatureId, menu.getRootMenu());
3484            }
3485        }
3486
3487        public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
3488            Callback callback = getCallback();
3489            return (callback != null && !isDestroyed())
3490                    && callback.onMenuItemSelected(mFeatureId, item);
3491        }
3492
3493        public void onMenuModeChange(MenuBuilder menu) {
3494        }
3495
3496        public boolean onOpenSubMenu(MenuBuilder subMenu) {
3497            if (subMenu == null) return false;
3498
3499            // Set a simple callback for the submenu
3500            subMenu.setCallback(this);
3501
3502            // The window manager will give us a valid window token
3503            mSubMenuHelper = new MenuDialogHelper(subMenu);
3504            mSubMenuHelper.show(null);
3505
3506            return true;
3507        }
3508    }
3509
3510    void sendCloseSystemWindows() {
3511        PhoneWindowManager.sendCloseSystemWindows(getContext(), null);
3512    }
3513
3514    void sendCloseSystemWindows(String reason) {
3515        PhoneWindowManager.sendCloseSystemWindows(getContext(), reason);
3516    }
3517}
3518