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/*
* Copyright (C) 2010, T-Mobile USA, Inc.
* Copyright (C) 2015 The CyanogenMod 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.server;
import android.app.Notification;
import android.app.NotificationManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ThemeUtils;
import android.content.res.ThemeChangeRequest;
import android.content.res.ThemeChangeRequest.RequestType;
import android.content.res.ThemeConfig;
import android.content.res.ThemeManager;
import android.os.SystemClock;
import com.android.internal.R;
public class AppsFailureReceiver extends BroadcastReceiver {
private static final int FAILURES_THRESHOLD = 3;
private static final int EXPIRATION_TIME_IN_MILLISECONDS = 30000; // 30 seconds
private static final int THEME_RESET_NOTIFICATION_ID = 0x4641494C;
private int mFailuresCount = 0;
private long mStartTime = 0;
// This function implements the following logic.
// If after a theme was applied the number of application launch failures
// at any moment was equal to FAILURES_THRESHOLD
// in less than EXPIRATION_TIME_IN_MILLISECONDS
// the default theme is applied unconditionally.
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(Intent.ACTION_APP_FAILURE)) {
long currentTime = SystemClock.uptimeMillis();
String pkgName = intent.getStringExtra("package");
if (currentTime - mStartTime > EXPIRATION_TIME_IN_MILLISECONDS) {
// reset both the count and the timer
mStartTime = currentTime;
mFailuresCount = 0;
}
if (mFailuresCount <= FAILURES_THRESHOLD) {
mFailuresCount++;
if (mFailuresCount == FAILURES_THRESHOLD) {
// let the theme manager take care of getting us back on the default theme
ThemeManager tm =
(ThemeManager) context.getSystemService(Context.THEME_SERVICE);
final String themePkgName = ThemeConfig.SYSTEM_DEFAULT;
ThemeChangeRequest.Builder builder = new ThemeChangeRequest.Builder();
builder.setOverlay(themePkgName)
.setStatusBar(themePkgName)
.setNavBar(themePkgName)
.setIcons(themePkgName)
.setFont(themePkgName)
.setBootanimation(themePkgName)
.setWallpaper(themePkgName)
.setLockWallpaper(themePkgName)
.setAlarm(themePkgName)
.setNotification(themePkgName)
.setRingtone(themePkgName)
.setRequestType(RequestType.THEME_RESET);
// Since we are resetting everything to the system theme, we can have the
// theme service remove all per app themes without setting them explicitly :)
tm.requestThemeChange(builder.build(), true);
postThemeResetNotification(context);
}
}
} else if (action.equals(Intent.ACTION_APP_FAILURE_RESET)
|| action.equals(ThemeUtils.ACTION_THEME_CHANGED)) {
mFailuresCount = 0;
mStartTime = SystemClock.uptimeMillis();
} else if (action.equals(Intent.ACTION_PACKAGE_ADDED) ||
action.equals(Intent.ACTION_PACKAGE_REMOVED)) {
mFailuresCount = 0;
mStartTime = SystemClock.uptimeMillis();
}
}
/**
* Posts a notification to let the user know their theme was reset
* @param context
*/
private void postThemeResetNotification(Context context) {
NotificationManager nm =
(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
String title = context.getString(R.string.theme_reset_notification_title);
String body = context.getString(R.string.theme_reset_notification_body);
Notification notice = new Notification.Builder(context)
.setAutoCancel(true)
.setOngoing(false)
.setContentTitle(title)
.setContentText(body)
.setStyle(new Notification.BigTextStyle().bigText(body))
.setSmallIcon(android.R.drawable.stat_notify_error)
.setWhen(System.currentTimeMillis())
.setCategory(Notification.CATEGORY_SYSTEM)
.setPriority(Notification.PRIORITY_MAX)
.build();
nm.notify(THEME_RESET_NOTIFICATION_ID, notice);
}
}
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