/* * 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.Handler; import android.os.IBinder; import android.os.Message; 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; 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 state, boolean animate); public void animateExpandNotificationsPanel(); public void animateCollapsePanels(int flags); public void animateExpandSettingsPanel(); 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 cancelPreloadRecentApps(); public void showSearchPanel(); public void hideSearchPanel(); public void setWindowState(int window, int state); public void buzzBeepBlinked(); public void notificationLightOff(); public void notificationLightPulse(int argb, int onMillis, int offMillis); } 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 state) { synchronized (mList) { mHandler.removeMessages(MSG_DISABLE); mHandler.obtainMessage(MSG_DISABLE, state, 0, 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() { synchronized (mList) { mHandler.removeMessages(MSG_EXPAND_SETTINGS); mHandler.sendEmptyMessage(MSG_EXPAND_SETTINGS); } } public void setSystemUiVisibility(int vis, int mask) { synchronized (mList) { mHandler.removeMessages(MSG_SET_SYSTEMUI_VISIBILITY); 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(); } } 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(); } } 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, true /* animate */); break; case MSG_EXPAND_NOTIFICATIONS: mCallbacks.animateExpandNotificationsPanel(); break; case MSG_COLLAPSE_PANELS: mCallbacks.animateCollapsePanels(0); break; case MSG_EXPAND_SETTINGS: mCallbacks.animateExpandSettingsPanel(); 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_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; } } } }