1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.systemui.statusbar; 18 19 import android.os.Handler; 20 import android.os.IBinder; 21 import android.os.Message; 22 23 import android.service.notification.StatusBarNotification; 24 import com.android.internal.statusbar.IStatusBar; 25 import com.android.internal.statusbar.StatusBarIcon; 26 import com.android.internal.statusbar.StatusBarIconList; 27 28 /** 29 * This class takes the functions from IStatusBar that come in on 30 * binder pool threads and posts messages to get them onto the main 31 * thread, and calls onto Callbacks. It also takes care of 32 * coalescing these calls so they don't stack up. For the calls 33 * are coalesced, note that they are all idempotent. 34 */ 35 public class CommandQueue extends IStatusBar.Stub { 36 private static final int INDEX_MASK = 0xffff; 37 private static final int MSG_SHIFT = 16; 38 private static final int MSG_MASK = 0xffff << MSG_SHIFT; 39 40 private static final int OP_SET_ICON = 1; 41 private static final int OP_REMOVE_ICON = 2; 42 43 private static final int MSG_ICON = 1 << MSG_SHIFT; 44 private static final int MSG_ADD_NOTIFICATION = 2 << MSG_SHIFT; 45 private static final int MSG_UPDATE_NOTIFICATION = 3 << MSG_SHIFT; 46 private static final int MSG_REMOVE_NOTIFICATION = 4 << MSG_SHIFT; 47 private static final int MSG_DISABLE = 5 << MSG_SHIFT; 48 private static final int MSG_EXPAND_NOTIFICATIONS = 6 << MSG_SHIFT; 49 private static final int MSG_COLLAPSE_PANELS = 7 << MSG_SHIFT; 50 private static final int MSG_EXPAND_SETTINGS = 8 << MSG_SHIFT; 51 private static final int MSG_SET_SYSTEMUI_VISIBILITY = 9 << MSG_SHIFT; 52 private static final int MSG_TOP_APP_WINDOW_CHANGED = 10 << MSG_SHIFT; 53 private static final int MSG_SHOW_IME_BUTTON = 11 << MSG_SHIFT; 54 private static final int MSG_SET_HARD_KEYBOARD_STATUS = 12 << MSG_SHIFT; 55 private static final int MSG_TOGGLE_RECENT_APPS = 13 << MSG_SHIFT; 56 private static final int MSG_PRELOAD_RECENT_APPS = 14 << MSG_SHIFT; 57 private static final int MSG_CANCEL_PRELOAD_RECENT_APPS = 15 << MSG_SHIFT; 58 private static final int MSG_SET_NAVIGATION_ICON_HINTS = 16 << MSG_SHIFT; 59 60 public static final int FLAG_EXCLUDE_NONE = 0; 61 public static final int FLAG_EXCLUDE_SEARCH_PANEL = 1 << 0; 62 public static final int FLAG_EXCLUDE_RECENTS_PANEL = 1 << 1; 63 public static final int FLAG_EXCLUDE_NOTIFICATION_PANEL = 1 << 2; 64 public static final int FLAG_EXCLUDE_INPUT_METHODS_PANEL = 1 << 3; 65 public static final int FLAG_EXCLUDE_COMPAT_MODE_PANEL = 1 << 4; 66 67 private StatusBarIconList mList; 68 private Callbacks mCallbacks; 69 private Handler mHandler = new H(); 70 71 private class NotificationQueueEntry { 72 IBinder key; 73 StatusBarNotification notification; 74 } 75 76 /** 77 * These methods are called back on the main thread. 78 */ 79 public interface Callbacks { addIcon(String slot, int index, int viewIndex, StatusBarIcon icon)80 public void addIcon(String slot, int index, int viewIndex, StatusBarIcon icon); updateIcon(String slot, int index, int viewIndex, StatusBarIcon old, StatusBarIcon icon)81 public void updateIcon(String slot, int index, int viewIndex, 82 StatusBarIcon old, StatusBarIcon icon); removeIcon(String slot, int index, int viewIndex)83 public void removeIcon(String slot, int index, int viewIndex); addNotification(IBinder key, StatusBarNotification notification)84 public void addNotification(IBinder key, StatusBarNotification notification); updateNotification(IBinder key, StatusBarNotification notification)85 public void updateNotification(IBinder key, StatusBarNotification notification); removeNotification(IBinder key)86 public void removeNotification(IBinder key); disable(int state)87 public void disable(int state); animateExpandNotificationsPanel()88 public void animateExpandNotificationsPanel(); animateCollapsePanels(int flags)89 public void animateCollapsePanels(int flags); animateExpandSettingsPanel()90 public void animateExpandSettingsPanel(); setSystemUiVisibility(int vis, int mask)91 public void setSystemUiVisibility(int vis, int mask); topAppWindowChanged(boolean visible)92 public void topAppWindowChanged(boolean visible); setImeWindowStatus(IBinder token, int vis, int backDisposition)93 public void setImeWindowStatus(IBinder token, int vis, int backDisposition); setHardKeyboardStatus(boolean available, boolean enabled)94 public void setHardKeyboardStatus(boolean available, boolean enabled); toggleRecentApps()95 public void toggleRecentApps(); preloadRecentApps()96 public void preloadRecentApps(); showSearchPanel()97 public void showSearchPanel(); hideSearchPanel()98 public void hideSearchPanel(); cancelPreloadRecentApps()99 public void cancelPreloadRecentApps(); setNavigationIconHints(int hints)100 public void setNavigationIconHints(int hints); 101 } 102 CommandQueue(Callbacks callbacks, StatusBarIconList list)103 public CommandQueue(Callbacks callbacks, StatusBarIconList list) { 104 mCallbacks = callbacks; 105 mList = list; 106 } 107 setIcon(int index, StatusBarIcon icon)108 public void setIcon(int index, StatusBarIcon icon) { 109 synchronized (mList) { 110 int what = MSG_ICON | index; 111 mHandler.removeMessages(what); 112 mHandler.obtainMessage(what, OP_SET_ICON, 0, icon.clone()).sendToTarget(); 113 } 114 } 115 removeIcon(int index)116 public void removeIcon(int index) { 117 synchronized (mList) { 118 int what = MSG_ICON | index; 119 mHandler.removeMessages(what); 120 mHandler.obtainMessage(what, OP_REMOVE_ICON, 0, null).sendToTarget(); 121 } 122 } 123 addNotification(IBinder key, StatusBarNotification notification)124 public void addNotification(IBinder key, StatusBarNotification notification) { 125 synchronized (mList) { 126 NotificationQueueEntry ne = new NotificationQueueEntry(); 127 ne.key = key; 128 ne.notification = notification; 129 mHandler.obtainMessage(MSG_ADD_NOTIFICATION, 0, 0, ne).sendToTarget(); 130 } 131 } 132 updateNotification(IBinder key, StatusBarNotification notification)133 public void updateNotification(IBinder key, StatusBarNotification notification) { 134 synchronized (mList) { 135 NotificationQueueEntry ne = new NotificationQueueEntry(); 136 ne.key = key; 137 ne.notification = notification; 138 mHandler.obtainMessage(MSG_UPDATE_NOTIFICATION, 0, 0, ne).sendToTarget(); 139 } 140 } 141 removeNotification(IBinder key)142 public void removeNotification(IBinder key) { 143 synchronized (mList) { 144 mHandler.obtainMessage(MSG_REMOVE_NOTIFICATION, 0, 0, key).sendToTarget(); 145 } 146 } 147 disable(int state)148 public void disable(int state) { 149 synchronized (mList) { 150 mHandler.removeMessages(MSG_DISABLE); 151 mHandler.obtainMessage(MSG_DISABLE, state, 0, null).sendToTarget(); 152 } 153 } 154 animateExpandNotificationsPanel()155 public void animateExpandNotificationsPanel() { 156 synchronized (mList) { 157 mHandler.removeMessages(MSG_EXPAND_NOTIFICATIONS); 158 mHandler.sendEmptyMessage(MSG_EXPAND_NOTIFICATIONS); 159 } 160 } 161 animateCollapsePanels()162 public void animateCollapsePanels() { 163 synchronized (mList) { 164 mHandler.removeMessages(MSG_COLLAPSE_PANELS); 165 mHandler.sendEmptyMessage(MSG_COLLAPSE_PANELS); 166 } 167 } 168 animateExpandSettingsPanel()169 public void animateExpandSettingsPanel() { 170 synchronized (mList) { 171 mHandler.removeMessages(MSG_EXPAND_SETTINGS); 172 mHandler.sendEmptyMessage(MSG_EXPAND_SETTINGS); 173 } 174 } 175 setSystemUiVisibility(int vis, int mask)176 public void setSystemUiVisibility(int vis, int mask) { 177 synchronized (mList) { 178 mHandler.removeMessages(MSG_SET_SYSTEMUI_VISIBILITY); 179 mHandler.obtainMessage(MSG_SET_SYSTEMUI_VISIBILITY, vis, mask, null).sendToTarget(); 180 } 181 } 182 topAppWindowChanged(boolean menuVisible)183 public void topAppWindowChanged(boolean menuVisible) { 184 synchronized (mList) { 185 mHandler.removeMessages(MSG_TOP_APP_WINDOW_CHANGED); 186 mHandler.obtainMessage(MSG_TOP_APP_WINDOW_CHANGED, menuVisible ? 1 : 0, 0, 187 null).sendToTarget(); 188 } 189 } 190 setImeWindowStatus(IBinder token, int vis, int backDisposition)191 public void setImeWindowStatus(IBinder token, int vis, int backDisposition) { 192 synchronized (mList) { 193 mHandler.removeMessages(MSG_SHOW_IME_BUTTON); 194 mHandler.obtainMessage(MSG_SHOW_IME_BUTTON, vis, backDisposition, token) 195 .sendToTarget(); 196 } 197 } 198 setHardKeyboardStatus(boolean available, boolean enabled)199 public void setHardKeyboardStatus(boolean available, boolean enabled) { 200 synchronized (mList) { 201 mHandler.removeMessages(MSG_SET_HARD_KEYBOARD_STATUS); 202 mHandler.obtainMessage(MSG_SET_HARD_KEYBOARD_STATUS, 203 available ? 1 : 0, enabled ? 1 : 0).sendToTarget(); 204 } 205 } 206 toggleRecentApps()207 public void toggleRecentApps() { 208 synchronized (mList) { 209 mHandler.removeMessages(MSG_TOGGLE_RECENT_APPS); 210 mHandler.obtainMessage(MSG_TOGGLE_RECENT_APPS, 0, 0, null).sendToTarget(); 211 } 212 } 213 preloadRecentApps()214 public void preloadRecentApps() { 215 synchronized (mList) { 216 mHandler.removeMessages(MSG_PRELOAD_RECENT_APPS); 217 mHandler.obtainMessage(MSG_PRELOAD_RECENT_APPS, 0, 0, null).sendToTarget(); 218 } 219 } 220 cancelPreloadRecentApps()221 public void cancelPreloadRecentApps() { 222 synchronized (mList) { 223 mHandler.removeMessages(MSG_CANCEL_PRELOAD_RECENT_APPS); 224 mHandler.obtainMessage(MSG_CANCEL_PRELOAD_RECENT_APPS, 0, 0, null).sendToTarget(); 225 } 226 } 227 setNavigationIconHints(int hints)228 public void setNavigationIconHints(int hints) { 229 synchronized (mList) { 230 mHandler.removeMessages(MSG_SET_NAVIGATION_ICON_HINTS); 231 mHandler.obtainMessage(MSG_SET_NAVIGATION_ICON_HINTS, hints, 0, null).sendToTarget(); 232 } 233 } 234 235 private final class H extends Handler { handleMessage(Message msg)236 public void handleMessage(Message msg) { 237 final int what = msg.what & MSG_MASK; 238 switch (what) { 239 case MSG_ICON: { 240 final int index = msg.what & INDEX_MASK; 241 final int viewIndex = mList.getViewIndex(index); 242 switch (msg.arg1) { 243 case OP_SET_ICON: { 244 StatusBarIcon icon = (StatusBarIcon)msg.obj; 245 StatusBarIcon old = mList.getIcon(index); 246 if (old == null) { 247 mList.setIcon(index, icon); 248 mCallbacks.addIcon(mList.getSlot(index), index, viewIndex, icon); 249 } else { 250 mList.setIcon(index, icon); 251 mCallbacks.updateIcon(mList.getSlot(index), index, viewIndex, 252 old, icon); 253 } 254 break; 255 } 256 case OP_REMOVE_ICON: 257 if (mList.getIcon(index) != null) { 258 mList.removeIcon(index); 259 mCallbacks.removeIcon(mList.getSlot(index), index, viewIndex); 260 } 261 break; 262 } 263 break; 264 } 265 case MSG_ADD_NOTIFICATION: { 266 final NotificationQueueEntry ne = (NotificationQueueEntry)msg.obj; 267 mCallbacks.addNotification(ne.key, ne.notification); 268 break; 269 } 270 case MSG_UPDATE_NOTIFICATION: { 271 final NotificationQueueEntry ne = (NotificationQueueEntry)msg.obj; 272 mCallbacks.updateNotification(ne.key, ne.notification); 273 break; 274 } 275 case MSG_REMOVE_NOTIFICATION: { 276 mCallbacks.removeNotification((IBinder)msg.obj); 277 break; 278 } 279 case MSG_DISABLE: 280 mCallbacks.disable(msg.arg1); 281 break; 282 case MSG_EXPAND_NOTIFICATIONS: 283 mCallbacks.animateExpandNotificationsPanel(); 284 break; 285 case MSG_COLLAPSE_PANELS: 286 mCallbacks.animateCollapsePanels(0); 287 break; 288 case MSG_EXPAND_SETTINGS: 289 mCallbacks.animateExpandSettingsPanel(); 290 break; 291 case MSG_SET_SYSTEMUI_VISIBILITY: 292 mCallbacks.setSystemUiVisibility(msg.arg1, msg.arg2); 293 break; 294 case MSG_TOP_APP_WINDOW_CHANGED: 295 mCallbacks.topAppWindowChanged(msg.arg1 != 0); 296 break; 297 case MSG_SHOW_IME_BUTTON: 298 mCallbacks.setImeWindowStatus((IBinder)msg.obj, msg.arg1, msg.arg2); 299 break; 300 case MSG_SET_HARD_KEYBOARD_STATUS: 301 mCallbacks.setHardKeyboardStatus(msg.arg1 != 0, msg.arg2 != 0); 302 break; 303 case MSG_TOGGLE_RECENT_APPS: 304 mCallbacks.toggleRecentApps(); 305 break; 306 case MSG_PRELOAD_RECENT_APPS: 307 mCallbacks.preloadRecentApps(); 308 break; 309 case MSG_CANCEL_PRELOAD_RECENT_APPS: 310 mCallbacks.cancelPreloadRecentApps(); 311 break; 312 case MSG_SET_NAVIGATION_ICON_HINTS: 313 mCallbacks.setNavigationIconHints(msg.arg1); 314 break; 315 } 316 } 317 } 318 } 319 320