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/*
* Copyright (C) 2014 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;
import android.app.Application;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.res.Configuration;
import android.content.res.ThemeConfig;
import android.os.SystemProperties;
import android.util.Log;
import java.util.HashMap;
import java.util.Map;
/**
* Application class for SystemUI.
*/
public class SystemUIApplication extends Application {
private static final String TAG = "SystemUIService";
private static final boolean DEBUG = false;
/**
* The classes of the stuff to start.
*/
private final Class<?>[] SERVICES = new Class[] {
com.android.systemui.tuner.TunerService.class,
com.android.systemui.keyguard.KeyguardViewMediator.class,
com.android.systemui.recents.Recents.class,
com.android.systemui.volume.VolumeUI.class,
com.android.systemui.statusbar.SystemBars.class,
com.android.systemui.usb.StorageNotification.class,
com.android.systemui.power.PowerUI.class,
com.android.systemui.media.RingtonePlayer.class,
com.android.systemui.keyboard.KeyboardUI.class,
};
/**
* Hold a reference on the stuff we start.
*/
private final SystemUI[] mServices = new SystemUI[SERVICES.length];
private boolean mServicesStarted;
private boolean mBootCompleted;
private final Map<Class<?>, Object> mComponents = new HashMap<Class<?>, Object>();
private Configuration mConfig;
@Override
public void onCreate() {
super.onCreate();
// Set the application theme that is inherited by all services. Note that setting the
// application theme in the manifest does only work for activities. Keep this in sync with
// the theme set there.
setTheme(R.style.systemui_theme);
IntentFilter filter = new IntentFilter(Intent.ACTION_BOOT_COMPLETED);
filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY);
registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (mBootCompleted) return;
if (DEBUG) Log.v(TAG, "BOOT_COMPLETED received");
unregisterReceiver(this);
mBootCompleted = true;
if (mServicesStarted) {
final int N = mServices.length;
for (int i = 0; i < N; i++) {
mServices[i].onBootCompleted();
}
}
}
}, filter);
mConfig = new Configuration(getResources().getConfiguration());
}
/**
* Makes sure that all the SystemUI services are running. If they are already running, this is a
* no-op. This is needed to conditinally start all the services, as we only need to have it in
* the main process.
*
* <p>This method must only be called from the main thread.</p>
*/
public void startServicesIfNeeded() {
if (mServicesStarted) {
return;
}
if (!mBootCompleted) {
// check to see if maybe it was already completed long before we began
// see ActivityManagerService.finishBooting()
if ("1".equals(SystemProperties.get("sys.boot_completed"))) {
mBootCompleted = true;
if (DEBUG) Log.v(TAG, "BOOT_COMPLETED was already sent");
}
}
Log.v(TAG, "Starting SystemUI services.");
final int N = SERVICES.length;
for (int i=0; i<N; i++) {
Class<?> cl = SERVICES[i];
if (DEBUG) Log.d(TAG, "loading: " + cl);
try {
mServices[i] = (SystemUI)cl.newInstance();
} catch (IllegalAccessException ex) {
throw new RuntimeException(ex);
} catch (InstantiationException ex) {
throw new RuntimeException(ex);
}
mServices[i].mContext = this;
mServices[i].mComponents = mComponents;
if (DEBUG) Log.d(TAG, "running: " + mServices[i]);
mServices[i].start();
if (mBootCompleted) {
mServices[i].onBootCompleted();
}
}
mServicesStarted = true;
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
if (isThemeChange(mConfig, newConfig)) {
// theme resource changed so recreate styles and attributes
recreateTheme();
}
mConfig.setTo(newConfig);
if (mServicesStarted) {
int len = mServices.length;
for (int i = 0; i < len; i++) {
mServices[i].onConfigurationChanged(newConfig);
}
}
}
@SuppressWarnings("unchecked")
public <T> T getComponent(Class<T> interfaceType) {
return (T) mComponents.get(interfaceType);
}
public SystemUI[] getServices() {
return mServices;
}
private static boolean isThemeChange(Configuration oldConfig, Configuration newConfig) {
final ThemeConfig oldThemeConfig = oldConfig != null ? oldConfig.themeConfig : null;
final ThemeConfig newThemeConfig = newConfig != null ? newConfig.themeConfig : null;
return newThemeConfig != null && !newThemeConfig.equals(oldThemeConfig);
}
}
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