/*
* 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;
import com.android.internal.statusbar.StatusBarNotification;
/**
* 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_ADD_NOTIFICATION = 2 << MSG_SHIFT;
private static final int MSG_UPDATE_NOTIFICATION = 3 << MSG_SHIFT;
private static final int MSG_REMOVE_NOTIFICATION = 4 << MSG_SHIFT;
private static final int MSG_DISABLE = 5 << MSG_SHIFT;
private static final int MSG_EXPAND_NOTIFICATIONS = 6 << MSG_SHIFT;
private static final int MSG_COLLAPSE_PANELS = 7 << MSG_SHIFT;
private static final int MSG_EXPAND_SETTINGS = 8 << MSG_SHIFT;
private static final int MSG_SET_SYSTEMUI_VISIBILITY = 9 << MSG_SHIFT;
private static final int MSG_TOP_APP_WINDOW_CHANGED = 10 << MSG_SHIFT;
private static final int MSG_SHOW_IME_BUTTON = 11 << MSG_SHIFT;
private static final int MSG_SET_HARD_KEYBOARD_STATUS = 12 << MSG_SHIFT;
private static final int MSG_TOGGLE_RECENT_APPS = 13 << MSG_SHIFT;
private static final int MSG_PRELOAD_RECENT_APPS = 14 << MSG_SHIFT;
private static final int MSG_CANCEL_PRELOAD_RECENT_APPS = 15 << MSG_SHIFT;
private static final int MSG_SET_NAVIGATION_ICON_HINTS = 16 << 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 StatusBarIconList mList;
private Callbacks mCallbacks;
private Handler mHandler = new H();
private class NotificationQueueEntry {
IBinder key;
StatusBarNotification notification;
}
/**
* 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 addNotification(IBinder key, StatusBarNotification notification);
public void updateNotification(IBinder key, StatusBarNotification notification);
public void removeNotification(IBinder key);
public void disable(int state);
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);
public void setHardKeyboardStatus(boolean available, boolean enabled);
public void toggleRecentApps();
public void preloadRecentApps();
public void showSearchPanel();
public void hideSearchPanel();
public void cancelPreloadRecentApps();
public void setNavigationIconHints(int hints);
}
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 addNotification(IBinder key, StatusBarNotification notification) {
synchronized (mList) {
NotificationQueueEntry ne = new NotificationQueueEntry();
ne.key = key;
ne.notification = notification;
mHandler.obtainMessage(MSG_ADD_NOTIFICATION, 0, 0, ne).sendToTarget();
}
}
public void updateNotification(IBinder key, StatusBarNotification notification) {
synchronized (mList) {
NotificationQueueEntry ne = new NotificationQueueEntry();
ne.key = key;
ne.notification = notification;
mHandler.obtainMessage(MSG_UPDATE_NOTIFICATION, 0, 0, ne).sendToTarget();
}
}
public void removeNotification(IBinder key) {
synchronized (mList) {
mHandler.obtainMessage(MSG_REMOVE_NOTIFICATION, 0, 0, key).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) {
synchronized (mList) {
mHandler.removeMessages(MSG_SHOW_IME_BUTTON);
mHandler.obtainMessage(MSG_SHOW_IME_BUTTON, vis, backDisposition, token)
.sendToTarget();
}
}
public void setHardKeyboardStatus(boolean available, boolean enabled) {
synchronized (mList) {
mHandler.removeMessages(MSG_SET_HARD_KEYBOARD_STATUS);
mHandler.obtainMessage(MSG_SET_HARD_KEYBOARD_STATUS,
available ? 1 : 0, enabled ? 1 : 0).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 setNavigationIconHints(int hints) {
synchronized (mList) {
mHandler.removeMessages(MSG_SET_NAVIGATION_ICON_HINTS);
mHandler.obtainMessage(MSG_SET_NAVIGATION_ICON_HINTS, hints, 0, null).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_ADD_NOTIFICATION: {
final NotificationQueueEntry ne = (NotificationQueueEntry)msg.obj;
mCallbacks.addNotification(ne.key, ne.notification);
break;
}
case MSG_UPDATE_NOTIFICATION: {
final NotificationQueueEntry ne = (NotificationQueueEntry)msg.obj;
mCallbacks.updateNotification(ne.key, ne.notification);
break;
}
case MSG_REMOVE_NOTIFICATION: {
mCallbacks.removeNotification((IBinder)msg.obj);
break;
}
case MSG_DISABLE:
mCallbacks.disable(msg.arg1);
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);
break;
case MSG_SET_HARD_KEYBOARD_STATUS:
mCallbacks.setHardKeyboardStatus(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_NAVIGATION_ICON_HINTS:
mCallbacks.setNavigationIconHints(msg.arg1);
break;
}
}
}
}