packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java - platform/frameworks/base - Git at Google

 /*
  * Copyright (C) 2010 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package com.android.systemui.statusbar;

 import android.os.Bundle;
 import android.os.Handler;
 import android.os.IBinder;
 import android.os.Message;
 import android.util.Pair;

 import com.android.internal.statusbar.IStatusBar;
 import com.android.internal.statusbar.StatusBarIcon;
 import com.android.internal.statusbar.StatusBarIconList;

 /**
  * This class takes the functions from IStatusBar that come in on
  * binder pool threads and posts messages to get them onto the main
  * thread, and calls onto Callbacks.  It also takes care of
  * coalescing these calls so they don't stack up.  For the calls
  * are coalesced, note that they are all idempotent.
  */
 public class CommandQueue extends IStatusBar.Stub {
     private static final int INDEX_MASK = 0xffff;
     private static final int MSG_SHIFT  = 16;
     private static final int MSG_MASK   = 0xffff << MSG_SHIFT;

     private static final int OP_SET_ICON    = 1;
     private static final int OP_REMOVE_ICON = 2;

     private static final int MSG_ICON                       = 1 << MSG_SHIFT;
     private static final int MSG_DISABLE                    = 2 << MSG_SHIFT;
     private static final int MSG_EXPAND_NOTIFICATIONS       = 3 << MSG_SHIFT;
     private static final int MSG_COLLAPSE_PANELS            = 4 << MSG_SHIFT;
     private static final int MSG_EXPAND_SETTINGS            = 5 << MSG_SHIFT;
     private static final int MSG_SET_SYSTEMUI_VISIBILITY    = 6 << MSG_SHIFT;
     private static final int MSG_TOP_APP_WINDOW_CHANGED     = 7 << MSG_SHIFT;
     private static final int MSG_SHOW_IME_BUTTON            = 8 << MSG_SHIFT;
     private static final int MSG_TOGGLE_RECENT_APPS         = 9 << MSG_SHIFT;
     private static final int MSG_PRELOAD_RECENT_APPS        = 10 << MSG_SHIFT;
     private static final int MSG_CANCEL_PRELOAD_RECENT_APPS = 11 << MSG_SHIFT;
     private static final int MSG_SET_WINDOW_STATE           = 12 << MSG_SHIFT;
     private static final int MSG_SHOW_RECENT_APPS           = 13 << MSG_SHIFT;
     private static final int MSG_HIDE_RECENT_APPS           = 14 << MSG_SHIFT;
     private static final int MSG_BUZZ_BEEP_BLINKED          = 15 << MSG_SHIFT;
     private static final int MSG_NOTIFICATION_LIGHT_OFF     = 16 << MSG_SHIFT;
     private static final int MSG_NOTIFICATION_LIGHT_PULSE   = 17 << MSG_SHIFT;
     private static final int MSG_SHOW_SCREEN_PIN_REQUEST    = 18 << MSG_SHIFT;
     private static final int MSG_APP_TRANSITION_PENDING     = 19 << MSG_SHIFT;
     private static final int MSG_APP_TRANSITION_CANCELLED   = 20 << MSG_SHIFT;
     private static final int MSG_APP_TRANSITION_STARTING    = 21 << MSG_SHIFT;
     private static final int MSG_ASSIST_DISCLOSURE          = 22 << MSG_SHIFT;
     private static final int MSG_START_ASSIST               = 23 << MSG_SHIFT;
     private static final int MSG_CAMERA_LAUNCH_GESTURE      = 24 << MSG_SHIFT;
     private static final int MSG_TOGGLE_KEYBOARD_SHORTCUTS  = 25 << MSG_SHIFT;

     public static final int FLAG_EXCLUDE_NONE = 0;
     public static final int FLAG_EXCLUDE_SEARCH_PANEL = 1 << 0;
     public static final int FLAG_EXCLUDE_RECENTS_PANEL = 1 << 1;
     public static final int FLAG_EXCLUDE_NOTIFICATION_PANEL = 1 << 2;
     public static final int FLAG_EXCLUDE_INPUT_METHODS_PANEL = 1 << 3;
     public static final int FLAG_EXCLUDE_COMPAT_MODE_PANEL = 1 << 4;

     private static final String SHOW_IME_SWITCHER_KEY = "showImeSwitcherKey";

     private StatusBarIconList mList;
     private Callbacks mCallbacks;
     private Handler mHandler = new H();

     /**
      * These methods are called back on the main thread.
      */
     public interface Callbacks {
         public void addIcon(String slot, int index, int viewIndex, StatusBarIcon icon);
         public void updateIcon(String slot, int index, int viewIndex,
                 StatusBarIcon old, StatusBarIcon icon);
         public void removeIcon(String slot, int index, int viewIndex);
         public void disable(int state1, int state2, boolean animate);
         public void animateExpandNotificationsPanel();
         public void animateCollapsePanels(int flags);
         public void animateExpandSettingsPanel(String obj);
         public void setSystemUiVisibility(int vis, int mask);
         public void topAppWindowChanged(boolean visible);
         public void setImeWindowStatus(IBinder token, int vis, int backDisposition,
                 boolean showImeSwitcher);
         public void showRecentApps(boolean triggeredFromAltTab);
         public void hideRecentApps(boolean triggeredFromAltTab, boolean triggeredFromHomeKey);
         public void toggleRecentApps();
         public void preloadRecentApps();
         public void toggleKeyboardShortcutsMenu();
         public void cancelPreloadRecentApps();
         public void setWindowState(int window, int state);
         public void buzzBeepBlinked();
         public void notificationLightOff();
         public void notificationLightPulse(int argb, int onMillis, int offMillis);
         public void showScreenPinningRequest();
         public void appTransitionPending();
         public void appTransitionCancelled();
         public void appTransitionStarting(long startTime, long duration);
         public void showAssistDisclosure();
         public void startAssist(Bundle args);
         public void onCameraLaunchGestureDetected(int source);
     }

     public CommandQueue(Callbacks callbacks, StatusBarIconList list) {
         mCallbacks = callbacks;
         mList = list;
     }

     public void setIcon(int index, StatusBarIcon icon) {
         synchronized (mList) {
             int what = MSG_ICON | index;
             mHandler.removeMessages(what);
             mHandler.obtainMessage(what, OP_SET_ICON, 0, icon.clone()).sendToTarget();
         }
     }

     public void removeIcon(int index) {
         synchronized (mList) {
             int what = MSG_ICON | index;
             mHandler.removeMessages(what);
             mHandler.obtainMessage(what, OP_REMOVE_ICON, 0, null).sendToTarget();
         }
     }

     public void disable(int state1, int state2) {
         synchronized (mList) {
             mHandler.removeMessages(MSG_DISABLE);
             mHandler.obtainMessage(MSG_DISABLE, state1, state2, null).sendToTarget();
         }
     }

     public void animateExpandNotificationsPanel() {
         synchronized (mList) {
             mHandler.removeMessages(MSG_EXPAND_NOTIFICATIONS);
             mHandler.sendEmptyMessage(MSG_EXPAND_NOTIFICATIONS);
         }
     }

     public void animateCollapsePanels() {
         synchronized (mList) {
             mHandler.removeMessages(MSG_COLLAPSE_PANELS);
             mHandler.sendEmptyMessage(MSG_COLLAPSE_PANELS);
         }
     }

     public void animateExpandSettingsPanel(String subPanel) {
         synchronized (mList) {
             mHandler.removeMessages(MSG_EXPAND_SETTINGS);
             mHandler.obtainMessage(MSG_EXPAND_SETTINGS, subPanel).sendToTarget();
         }
     }

     public void setSystemUiVisibility(int vis, int mask) {
         synchronized (mList) {
             // Don't coalesce these, since it might have one time flags set such as
             // STATUS_BAR_UNHIDE which might get lost.
             mHandler.obtainMessage(MSG_SET_SYSTEMUI_VISIBILITY, vis, mask, null).sendToTarget();
         }
     }

     public void topAppWindowChanged(boolean menuVisible) {
         synchronized (mList) {
             mHandler.removeMessages(MSG_TOP_APP_WINDOW_CHANGED);
             mHandler.obtainMessage(MSG_TOP_APP_WINDOW_CHANGED, menuVisible ? 1 : 0, 0,
                     null).sendToTarget();
         }
     }

     public void setImeWindowStatus(IBinder token, int vis, int backDisposition,
             boolean showImeSwitcher) {
         synchronized (mList) {
             mHandler.removeMessages(MSG_SHOW_IME_BUTTON);
             Message m = mHandler.obtainMessage(MSG_SHOW_IME_BUTTON, vis, backDisposition, token);
             m.getData().putBoolean(SHOW_IME_SWITCHER_KEY, showImeSwitcher);
             m.sendToTarget();
         }
     }

     public void showRecentApps(boolean triggeredFromAltTab) {
         synchronized (mList) {
             mHandler.removeMessages(MSG_SHOW_RECENT_APPS);
             mHandler.obtainMessage(MSG_SHOW_RECENT_APPS,
                     triggeredFromAltTab ? 1 : 0, 0, null).sendToTarget();
         }
     }

     public void hideRecentApps(boolean triggeredFromAltTab, boolean triggeredFromHomeKey) {
         synchronized (mList) {
             mHandler.removeMessages(MSG_HIDE_RECENT_APPS);
             mHandler.obtainMessage(MSG_HIDE_RECENT_APPS,
                     triggeredFromAltTab ? 1 : 0, triggeredFromHomeKey ? 1 : 0,
                     null).sendToTarget();
         }
     }

     public void toggleRecentApps() {
         synchronized (mList) {
             mHandler.removeMessages(MSG_TOGGLE_RECENT_APPS);
             mHandler.obtainMessage(MSG_TOGGLE_RECENT_APPS, 0, 0, null).sendToTarget();
         }
     }

     public void preloadRecentApps() {
         synchronized (mList) {
             mHandler.removeMessages(MSG_PRELOAD_RECENT_APPS);
             mHandler.obtainMessage(MSG_PRELOAD_RECENT_APPS, 0, 0, null).sendToTarget();
         }
     }

     public void cancelPreloadRecentApps() {
         synchronized (mList) {
             mHandler.removeMessages(MSG_CANCEL_PRELOAD_RECENT_APPS);
             mHandler.obtainMessage(MSG_CANCEL_PRELOAD_RECENT_APPS, 0, 0, null).sendToTarget();
         }
     }

     @Override
     public void toggleKeyboardShortcutsMenu() {
         synchronized (mList) {
             mHandler.removeMessages(MSG_TOGGLE_KEYBOARD_SHORTCUTS);
             mHandler.obtainMessage(MSG_TOGGLE_KEYBOARD_SHORTCUTS).sendToTarget();
         }
     }

     public void setWindowState(int window, int state) {
         synchronized (mList) {
             // don't coalesce these
             mHandler.obtainMessage(MSG_SET_WINDOW_STATE, window, state, null).sendToTarget();
         }
     }

     public void buzzBeepBlinked() {
         synchronized (mList) {
             mHandler.removeMessages(MSG_BUZZ_BEEP_BLINKED);
             mHandler.sendEmptyMessage(MSG_BUZZ_BEEP_BLINKED);
         }
     }

     public void notificationLightOff() {
         synchronized (mList) {
             mHandler.sendEmptyMessage(MSG_NOTIFICATION_LIGHT_OFF);
         }
     }

     public void notificationLightPulse(int argb, int onMillis, int offMillis) {
         synchronized (mList) {
             mHandler.obtainMessage(MSG_NOTIFICATION_LIGHT_PULSE, onMillis, offMillis, argb)
                     .sendToTarget();
         }
     }

     public void showScreenPinningRequest() {
         synchronized (mList) {
             mHandler.sendEmptyMessage(MSG_SHOW_SCREEN_PIN_REQUEST);
         }
     }

     public void appTransitionPending() {
         synchronized (mList) {
             mHandler.removeMessages(MSG_APP_TRANSITION_PENDING);
             mHandler.sendEmptyMessage(MSG_APP_TRANSITION_PENDING);
         }
     }

     public void appTransitionCancelled() {
         synchronized (mList) {
             mHandler.removeMessages(MSG_APP_TRANSITION_PENDING);
             mHandler.sendEmptyMessage(MSG_APP_TRANSITION_PENDING);
         }
     }

     public void appTransitionStarting(long startTime, long duration) {
         synchronized (mList) {
             mHandler.removeMessages(MSG_APP_TRANSITION_STARTING);
             mHandler.obtainMessage(MSG_APP_TRANSITION_STARTING, Pair.create(startTime, duration))
                     .sendToTarget();
         }
     }

     public void showAssistDisclosure() {
         synchronized (mList) {
             mHandler.removeMessages(MSG_ASSIST_DISCLOSURE);
             mHandler.obtainMessage(MSG_ASSIST_DISCLOSURE).sendToTarget();
         }
     }

     public void startAssist(Bundle args) {
         synchronized (mList) {
             mHandler.removeMessages(MSG_START_ASSIST);
             mHandler.obtainMessage(MSG_START_ASSIST, args).sendToTarget();
         }
     }

     @Override
     public void onCameraLaunchGestureDetected(int source) {
         synchronized (mList) {
             mHandler.removeMessages(MSG_CAMERA_LAUNCH_GESTURE);
             mHandler.obtainMessage(MSG_CAMERA_LAUNCH_GESTURE, source, 0).sendToTarget();
         }
     }

     private final class H extends Handler {
         public void handleMessage(Message msg) {
             final int what = msg.what & MSG_MASK;
             switch (what) {
                 case MSG_ICON: {
                     final int index = msg.what & INDEX_MASK;
                     final int viewIndex = mList.getViewIndex(index);
                     switch (msg.arg1) {
                         case OP_SET_ICON: {
                             StatusBarIcon icon = (StatusBarIcon)msg.obj;
                             StatusBarIcon old = mList.getIcon(index);
                             if (old == null) {
                                 mList.setIcon(index, icon);
                                 mCallbacks.addIcon(mList.getSlot(index), index, viewIndex, icon);
                             } else {
                                 mList.setIcon(index, icon);
                                 mCallbacks.updateIcon(mList.getSlot(index), index, viewIndex,
                                         old, icon);
                             }
                             break;
                         }
                         case OP_REMOVE_ICON:
                             if (mList.getIcon(index) != null) {
                                 mList.removeIcon(index);
                                 mCallbacks.removeIcon(mList.getSlot(index), index, viewIndex);
                             }
                             break;
                     }
                     break;
                 }
                 case MSG_DISABLE:
                     mCallbacks.disable(msg.arg1, msg.arg2, true /* animate */);
                     break;
                 case MSG_EXPAND_NOTIFICATIONS:
                     mCallbacks.animateExpandNotificationsPanel();
                     break;
                 case MSG_COLLAPSE_PANELS:
                     mCallbacks.animateCollapsePanels(0);
                     break;
                 case MSG_EXPAND_SETTINGS:
                     mCallbacks.animateExpandSettingsPanel((String) msg.obj);
                     break;
                 case MSG_SET_SYSTEMUI_VISIBILITY:
                     mCallbacks.setSystemUiVisibility(msg.arg1, msg.arg2);
                     break;
                 case MSG_TOP_APP_WINDOW_CHANGED:
                     mCallbacks.topAppWindowChanged(msg.arg1 != 0);
                     break;
                 case MSG_SHOW_IME_BUTTON:
                     mCallbacks.setImeWindowStatus((IBinder) msg.obj, msg.arg1, msg.arg2,
                             msg.getData().getBoolean(SHOW_IME_SWITCHER_KEY, false));
                     break;
                 case MSG_SHOW_RECENT_APPS:
                     mCallbacks.showRecentApps(msg.arg1 != 0);
                     break;
                 case MSG_HIDE_RECENT_APPS:
                     mCallbacks.hideRecentApps(msg.arg1 != 0, msg.arg2 != 0);
                     break;
                 case MSG_TOGGLE_RECENT_APPS:
                     mCallbacks.toggleRecentApps();
                     break;
                 case MSG_PRELOAD_RECENT_APPS:
                     mCallbacks.preloadRecentApps();
                     break;
                 case MSG_CANCEL_PRELOAD_RECENT_APPS:
                     mCallbacks.cancelPreloadRecentApps();
                     break;
                 case MSG_TOGGLE_KEYBOARD_SHORTCUTS:
                     mCallbacks.toggleKeyboardShortcutsMenu();
                     break;
                 case MSG_SET_WINDOW_STATE:
                     mCallbacks.setWindowState(msg.arg1, msg.arg2);
                     break;
                 case MSG_BUZZ_BEEP_BLINKED:
                     mCallbacks.buzzBeepBlinked();
                     break;
                 case MSG_NOTIFICATION_LIGHT_OFF:
                     mCallbacks.notificationLightOff();
                     break;
                 case MSG_NOTIFICATION_LIGHT_PULSE:
                     mCallbacks.notificationLightPulse((Integer) msg.obj, msg.arg1, msg.arg2);
                     break;
                 case MSG_SHOW_SCREEN_PIN_REQUEST:
                     mCallbacks.showScreenPinningRequest();
                     break;
                 case MSG_APP_TRANSITION_PENDING:
                     mCallbacks.appTransitionPending();
                     break;
                 case MSG_APP_TRANSITION_CANCELLED:
                     mCallbacks.appTransitionCancelled();
                     break;
                 case MSG_APP_TRANSITION_STARTING:
                     Pair<Long, Long> data = (Pair<Long, Long>) msg.obj;
                     mCallbacks.appTransitionStarting(data.first, data.second);
                     break;
                 case MSG_ASSIST_DISCLOSURE:
                     mCallbacks.showAssistDisclosure();
                     break;
                 case MSG_START_ASSIST:
                     mCallbacks.startAssist((Bundle) msg.obj);
                     break;
                 case MSG_CAMERA_LAUNCH_GESTURE:
                     mCallbacks.onCameraLaunchGestureDetected(msg.arg1);
                     break;
             }
         }
     }
 }
	/*
	* Copyright (C) 2010 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.android.systemui.statusbar;

	import android.os.Bundle;
	import android.os.Handler;
	import android.os.IBinder;
	import android.os.Message;
	import android.util.Pair;

	import com.android.internal.statusbar.IStatusBar;
	import com.android.internal.statusbar.StatusBarIcon;
	import com.android.internal.statusbar.StatusBarIconList;

	/**
	* This class takes the functions from IStatusBar that come in on
	* binder pool threads and posts messages to get them onto the main
	* thread, and calls onto Callbacks. It also takes care of
	* coalescing these calls so they don't stack up. For the calls
	* are coalesced, note that they are all idempotent.
	*/
	public class CommandQueue extends IStatusBar.Stub {
	private static final int INDEX_MASK = 0xffff;
	private static final int MSG_SHIFT = 16;
	private static final int MSG_MASK = 0xffff << MSG_SHIFT;

	private static final int OP_SET_ICON = 1;
	private static final int OP_REMOVE_ICON = 2;

	private static final int MSG_ICON = 1 << MSG_SHIFT;
	private static final int MSG_DISABLE = 2 << MSG_SHIFT;
	private static final int MSG_EXPAND_NOTIFICATIONS = 3 << MSG_SHIFT;
	private static final int MSG_COLLAPSE_PANELS = 4 << MSG_SHIFT;
	private static final int MSG_EXPAND_SETTINGS = 5 << MSG_SHIFT;
	private static final int MSG_SET_SYSTEMUI_VISIBILITY = 6 << MSG_SHIFT;
	private static final int MSG_TOP_APP_WINDOW_CHANGED = 7 << MSG_SHIFT;
	private static final int MSG_SHOW_IME_BUTTON = 8 << MSG_SHIFT;
	private static final int MSG_TOGGLE_RECENT_APPS = 9 << MSG_SHIFT;
	private static final int MSG_PRELOAD_RECENT_APPS = 10 << MSG_SHIFT;
	private static final int MSG_CANCEL_PRELOAD_RECENT_APPS = 11 << MSG_SHIFT;
	private static final int MSG_SET_WINDOW_STATE = 12 << MSG_SHIFT;
	private static final int MSG_SHOW_RECENT_APPS = 13 << MSG_SHIFT;
	private static final int MSG_HIDE_RECENT_APPS = 14 << MSG_SHIFT;
	private static final int MSG_BUZZ_BEEP_BLINKED = 15 << MSG_SHIFT;
	private static final int MSG_NOTIFICATION_LIGHT_OFF = 16 << MSG_SHIFT;
	private static final int MSG_NOTIFICATION_LIGHT_PULSE = 17 << MSG_SHIFT;
	private static final int MSG_SHOW_SCREEN_PIN_REQUEST = 18 << MSG_SHIFT;
	private static final int MSG_APP_TRANSITION_PENDING = 19 << MSG_SHIFT;
	private static final int MSG_APP_TRANSITION_CANCELLED = 20 << MSG_SHIFT;
	private static final int MSG_APP_TRANSITION_STARTING = 21 << MSG_SHIFT;
	private static final int MSG_ASSIST_DISCLOSURE = 22 << MSG_SHIFT;
	private static final int MSG_START_ASSIST = 23 << MSG_SHIFT;
	private static final int MSG_CAMERA_LAUNCH_GESTURE = 24 << MSG_SHIFT;
	private static final int MSG_TOGGLE_KEYBOARD_SHORTCUTS = 25 << MSG_SHIFT;

	public static final int FLAG_EXCLUDE_NONE = 0;
	public static final int FLAG_EXCLUDE_SEARCH_PANEL = 1 << 0;
	public static final int FLAG_EXCLUDE_RECENTS_PANEL = 1 << 1;
	public static final int FLAG_EXCLUDE_NOTIFICATION_PANEL = 1 << 2;
	public static final int FLAG_EXCLUDE_INPUT_METHODS_PANEL = 1 << 3;
	public static final int FLAG_EXCLUDE_COMPAT_MODE_PANEL = 1 << 4;

	private static final String SHOW_IME_SWITCHER_KEY = "showImeSwitcherKey";

	private StatusBarIconList mList;
	private Callbacks mCallbacks;
	private Handler mHandler = new H();

	/**
	* These methods are called back on the main thread.
	*/
	public interface Callbacks {
	public void addIcon(String slot, int index, int viewIndex, StatusBarIcon icon);
	public void updateIcon(String slot, int index, int viewIndex,
	StatusBarIcon old, StatusBarIcon icon);
	public void removeIcon(String slot, int index, int viewIndex);
	public void disable(int state1, int state2, boolean animate);
	public void animateExpandNotificationsPanel();
	public void animateCollapsePanels(int flags);
	public void animateExpandSettingsPanel(String obj);
	public void setSystemUiVisibility(int vis, int mask);
	public void topAppWindowChanged(boolean visible);
	public void setImeWindowStatus(IBinder token, int vis, int backDisposition,
	boolean showImeSwitcher);
	public void showRecentApps(boolean triggeredFromAltTab);
	public void hideRecentApps(boolean triggeredFromAltTab, boolean triggeredFromHomeKey);
	public void toggleRecentApps();
	public void preloadRecentApps();
	public void toggleKeyboardShortcutsMenu();
	public void cancelPreloadRecentApps();
	public void setWindowState(int window, int state);
	public void buzzBeepBlinked();
	public void notificationLightOff();
	public void notificationLightPulse(int argb, int onMillis, int offMillis);
	public void showScreenPinningRequest();
	public void appTransitionPending();
	public void appTransitionCancelled();
	public void appTransitionStarting(long startTime, long duration);
	public void showAssistDisclosure();
	public void startAssist(Bundle args);
	public void onCameraLaunchGestureDetected(int source);
	}

	public CommandQueue(Callbacks callbacks, StatusBarIconList list) {
	mCallbacks = callbacks;
	mList = list;
	}

	public void setIcon(int index, StatusBarIcon icon) {
	synchronized (mList) {
	int what = MSG_ICON \| index;
	mHandler.removeMessages(what);
	mHandler.obtainMessage(what, OP_SET_ICON, 0, icon.clone()).sendToTarget();
	}
	}

	public void removeIcon(int index) {
	synchronized (mList) {
	int what = MSG_ICON \| index;
	mHandler.removeMessages(what);
	mHandler.obtainMessage(what, OP_REMOVE_ICON, 0, null).sendToTarget();
	}
	}

	public void disable(int state1, int state2) {
	synchronized (mList) {
	mHandler.removeMessages(MSG_DISABLE);
	mHandler.obtainMessage(MSG_DISABLE, state1, state2, null).sendToTarget();
	}
	}

	public void animateExpandNotificationsPanel() {
	synchronized (mList) {
	mHandler.removeMessages(MSG_EXPAND_NOTIFICATIONS);
	mHandler.sendEmptyMessage(MSG_EXPAND_NOTIFICATIONS);
	}
	}

	public void animateCollapsePanels() {
	synchronized (mList) {
	mHandler.removeMessages(MSG_COLLAPSE_PANELS);
	mHandler.sendEmptyMessage(MSG_COLLAPSE_PANELS);
	}
	}

	public void animateExpandSettingsPanel(String subPanel) {
	synchronized (mList) {
	mHandler.removeMessages(MSG_EXPAND_SETTINGS);
	mHandler.obtainMessage(MSG_EXPAND_SETTINGS, subPanel).sendToTarget();
	}
	}

	public void setSystemUiVisibility(int vis, int mask) {
	synchronized (mList) {
	// Don't coalesce these, since it might have one time flags set such as
	// STATUS_BAR_UNHIDE which might get lost.
	mHandler.obtainMessage(MSG_SET_SYSTEMUI_VISIBILITY, vis, mask, null).sendToTarget();
	}
	}

	public void topAppWindowChanged(boolean menuVisible) {
	synchronized (mList) {
	mHandler.removeMessages(MSG_TOP_APP_WINDOW_CHANGED);
	mHandler.obtainMessage(MSG_TOP_APP_WINDOW_CHANGED, menuVisible ? 1 : 0, 0,
	null).sendToTarget();
	}
	}

	public void setImeWindowStatus(IBinder token, int vis, int backDisposition,
	boolean showImeSwitcher) {
	synchronized (mList) {
	mHandler.removeMessages(MSG_SHOW_IME_BUTTON);
	Message m = mHandler.obtainMessage(MSG_SHOW_IME_BUTTON, vis, backDisposition, token);
	m.getData().putBoolean(SHOW_IME_SWITCHER_KEY, showImeSwitcher);
	m.sendToTarget();
	}
	}

	public void showRecentApps(boolean triggeredFromAltTab) {
	synchronized (mList) {
	mHandler.removeMessages(MSG_SHOW_RECENT_APPS);
	mHandler.obtainMessage(MSG_SHOW_RECENT_APPS,
	triggeredFromAltTab ? 1 : 0, 0, null).sendToTarget();
	}
	}

	public void hideRecentApps(boolean triggeredFromAltTab, boolean triggeredFromHomeKey) {
	synchronized (mList) {
	mHandler.removeMessages(MSG_HIDE_RECENT_APPS);
	mHandler.obtainMessage(MSG_HIDE_RECENT_APPS,
	triggeredFromAltTab ? 1 : 0, triggeredFromHomeKey ? 1 : 0,
	null).sendToTarget();
	}
	}

	public void toggleRecentApps() {
	synchronized (mList) {
	mHandler.removeMessages(MSG_TOGGLE_RECENT_APPS);
	mHandler.obtainMessage(MSG_TOGGLE_RECENT_APPS, 0, 0, null).sendToTarget();
	}
	}

	public void preloadRecentApps() {
	synchronized (mList) {
	mHandler.removeMessages(MSG_PRELOAD_RECENT_APPS);
	mHandler.obtainMessage(MSG_PRELOAD_RECENT_APPS, 0, 0, null).sendToTarget();
	}
	}

	public void cancelPreloadRecentApps() {
	synchronized (mList) {
	mHandler.removeMessages(MSG_CANCEL_PRELOAD_RECENT_APPS);
	mHandler.obtainMessage(MSG_CANCEL_PRELOAD_RECENT_APPS, 0, 0, null).sendToTarget();
	}
	}

	@Override
	public void toggleKeyboardShortcutsMenu() {
	synchronized (mList) {
	mHandler.removeMessages(MSG_TOGGLE_KEYBOARD_SHORTCUTS);
	mHandler.obtainMessage(MSG_TOGGLE_KEYBOARD_SHORTCUTS).sendToTarget();
	}
	}

	public void setWindowState(int window, int state) {
	synchronized (mList) {
	// don't coalesce these
	mHandler.obtainMessage(MSG_SET_WINDOW_STATE, window, state, null).sendToTarget();
	}
	}

	public void buzzBeepBlinked() {
	synchronized (mList) {
	mHandler.removeMessages(MSG_BUZZ_BEEP_BLINKED);
	mHandler.sendEmptyMessage(MSG_BUZZ_BEEP_BLINKED);
	}
	}

	public void notificationLightOff() {
	synchronized (mList) {
	mHandler.sendEmptyMessage(MSG_NOTIFICATION_LIGHT_OFF);
	}
	}

	public void notificationLightPulse(int argb, int onMillis, int offMillis) {
	synchronized (mList) {
	mHandler.obtainMessage(MSG_NOTIFICATION_LIGHT_PULSE, onMillis, offMillis, argb)
	.sendToTarget();
	}
	}

	public void showScreenPinningRequest() {
	synchronized (mList) {
	mHandler.sendEmptyMessage(MSG_SHOW_SCREEN_PIN_REQUEST);
	}
	}

	public void appTransitionPending() {
	synchronized (mList) {
	mHandler.removeMessages(MSG_APP_TRANSITION_PENDING);
	mHandler.sendEmptyMessage(MSG_APP_TRANSITION_PENDING);
	}
	}

	public void appTransitionCancelled() {
	synchronized (mList) {
	mHandler.removeMessages(MSG_APP_TRANSITION_PENDING);
	mHandler.sendEmptyMessage(MSG_APP_TRANSITION_PENDING);
	}
	}

	public void appTransitionStarting(long startTime, long duration) {
	synchronized (mList) {
	mHandler.removeMessages(MSG_APP_TRANSITION_STARTING);
	mHandler.obtainMessage(MSG_APP_TRANSITION_STARTING, Pair.create(startTime, duration))
	.sendToTarget();
	}
	}

	public void showAssistDisclosure() {
	synchronized (mList) {
	mHandler.removeMessages(MSG_ASSIST_DISCLOSURE);
	mHandler.obtainMessage(MSG_ASSIST_DISCLOSURE).sendToTarget();
	}
	}

	public void startAssist(Bundle args) {
	synchronized (mList) {
	mHandler.removeMessages(MSG_START_ASSIST);
	mHandler.obtainMessage(MSG_START_ASSIST, args).sendToTarget();
	}
	}

	@Override
	public void onCameraLaunchGestureDetected(int source) {
	synchronized (mList) {
	mHandler.removeMessages(MSG_CAMERA_LAUNCH_GESTURE);
	mHandler.obtainMessage(MSG_CAMERA_LAUNCH_GESTURE, source, 0).sendToTarget();
	}
	}

	private final class H extends Handler {
	public void handleMessage(Message msg) {
	final int what = msg.what & MSG_MASK;
	switch (what) {
	case MSG_ICON: {
	final int index = msg.what & INDEX_MASK;
	final int viewIndex = mList.getViewIndex(index);
	switch (msg.arg1) {
	case OP_SET_ICON: {
	StatusBarIcon icon = (StatusBarIcon)msg.obj;
	StatusBarIcon old = mList.getIcon(index);
	if (old == null) {
	mList.setIcon(index, icon);
	mCallbacks.addIcon(mList.getSlot(index), index, viewIndex, icon);
	} else {
	mList.setIcon(index, icon);
	mCallbacks.updateIcon(mList.getSlot(index), index, viewIndex,
	old, icon);
	}
	break;
	}
	case OP_REMOVE_ICON:
	if (mList.getIcon(index) != null) {
	mList.removeIcon(index);
	mCallbacks.removeIcon(mList.getSlot(index), index, viewIndex);
	}
	break;
	}
	break;
	}
	case MSG_DISABLE:
	mCallbacks.disable(msg.arg1, msg.arg2, true /* animate */);
	break;
	case MSG_EXPAND_NOTIFICATIONS:
	mCallbacks.animateExpandNotificationsPanel();
	break;
	case MSG_COLLAPSE_PANELS:
	mCallbacks.animateCollapsePanels(0);
	break;
	case MSG_EXPAND_SETTINGS:
	mCallbacks.animateExpandSettingsPanel((String) msg.obj);
	break;
	case MSG_SET_SYSTEMUI_VISIBILITY:
	mCallbacks.setSystemUiVisibility(msg.arg1, msg.arg2);
	break;
	case MSG_TOP_APP_WINDOW_CHANGED:
	mCallbacks.topAppWindowChanged(msg.arg1 != 0);
	break;
	case MSG_SHOW_IME_BUTTON:
	mCallbacks.setImeWindowStatus((IBinder) msg.obj, msg.arg1, msg.arg2,
	msg.getData().getBoolean(SHOW_IME_SWITCHER_KEY, false));
	break;
	case MSG_SHOW_RECENT_APPS:
	mCallbacks.showRecentApps(msg.arg1 != 0);
	break;
	case MSG_HIDE_RECENT_APPS:
	mCallbacks.hideRecentApps(msg.arg1 != 0, msg.arg2 != 0);
	break;
	case MSG_TOGGLE_RECENT_APPS:
	mCallbacks.toggleRecentApps();
	break;
	case MSG_PRELOAD_RECENT_APPS:
	mCallbacks.preloadRecentApps();
	break;
	case MSG_CANCEL_PRELOAD_RECENT_APPS:
	mCallbacks.cancelPreloadRecentApps();
	break;
	case MSG_TOGGLE_KEYBOARD_SHORTCUTS:
	mCallbacks.toggleKeyboardShortcutsMenu();
	break;
	case MSG_SET_WINDOW_STATE:
	mCallbacks.setWindowState(msg.arg1, msg.arg2);
	break;
	case MSG_BUZZ_BEEP_BLINKED:
	mCallbacks.buzzBeepBlinked();
	break;
	case MSG_NOTIFICATION_LIGHT_OFF:
	mCallbacks.notificationLightOff();
	break;
	case MSG_NOTIFICATION_LIGHT_PULSE:
	mCallbacks.notificationLightPulse((Integer) msg.obj, msg.arg1, msg.arg2);
	break;
	case MSG_SHOW_SCREEN_PIN_REQUEST:
	mCallbacks.showScreenPinningRequest();
	break;
	case MSG_APP_TRANSITION_PENDING:
	mCallbacks.appTransitionPending();
	break;
	case MSG_APP_TRANSITION_CANCELLED:
	mCallbacks.appTransitionCancelled();
	break;
	case MSG_APP_TRANSITION_STARTING:
	Pair<Long, Long> data = (Pair<Long, Long>) msg.obj;
	mCallbacks.appTransitionStarting(data.first, data.second);
	break;
	case MSG_ASSIST_DISCLOSURE:
	mCallbacks.showAssistDisclosure();
	break;
	case MSG_START_ASSIST:
	mCallbacks.startAssist((Bundle) msg.obj);
	break;
	case MSG_CAMERA_LAUNCH_GESTURE:
	mCallbacks.onCameraLaunchGestureDetected(msg.arg1);
	break;
	}
	}
	}
	}