/*
* 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;
private static final int MSG_SHOW_SCREEN_PIN_REQUEST = 18 << 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 void showScreenPinningRequest();
}
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();
}
}
public void showScreenPinningRequest() {
synchronized (mList) {
mHandler.sendEmptyMessage(MSG_SHOW_SCREEN_PIN_REQUEST);
}
}
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;
case MSG_SHOW_SCREEN_PIN_REQUEST:
mCallbacks.showScreenPinningRequest();
break;
}
}
}
}
|
