MultiplexerOnlyModeReceiver.java

/*
 * Copyright 2015 Google Inc.
 *
 * 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.google.android.apps.dashclock;

import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.preference.PreferenceManager;

import com.google.android.apps.dashclock.configuration.AppearanceConfig;
import com.google.android.apps.dashclock.configuration.ConfigurationActivity;

/**
 * A private broadcast receiver that enables/disables "multiplexer-only" mode, which disables
 * most of DashClock's UI surface, leaving it to only function as a carrier of data between
 * extensions and other host apps that want to show data from those extensions.
 */
public class MultiplexerOnlyModeReceiver extends BroadcastReceiver {
    private static final String ACTION_MULTIPLEXER_ONLY_MODE
            = "com.google.android.apps.dashclock.action.MULTIPLEXER_ONLY_MODE";
    private static final String EXTRA_ENABLE
            = "com.google.android.apps.dashclock.extra.ENABLE";

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent == null || !ACTION_MULTIPLEXER_ONLY_MODE.equals(intent.getAction())) {
            return;
        }

        boolean multiplexerOnlyMode = intent.getBooleanExtra(EXTRA_ENABLE, false);
        enableDisableMultiplexerOnlyMode(context, multiplexerOnlyMode);
    }

    private void enableDisableMultiplexerOnlyMode(Context context, boolean multiplexerOnlyMode) {
        ComponentName[] components = {
                new ComponentName(context, DaydreamService.class),
                new ComponentName(context, ConfigurationActivity.class),
                new ComponentName(context, WidgetProvider.class)
        };

        PackageManager pm = context.getPackageManager();
        for (ComponentName componentName : components) {
            pm.setComponentEnabledSetting(componentName,
                    multiplexerOnlyMode
                            ? PackageManager.COMPONENT_ENABLED_STATE_DISABLED
                            : PackageManager.COMPONENT_ENABLED_STATE_DEFAULT,
                    PackageManager.DONT_KILL_APP);
        }

        pm.setComponentEnabledSetting(
                new ComponentName(
                        context.getPackageName(),
                        ConfigurationActivity.LAUNCHER_ACTIVITY_NAME),
                (!multiplexerOnlyMode && AppearanceConfig.shouldLauncherSettingsBeShown(context))
                        ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
                        : PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
                PackageManager.DONT_KILL_APP);
    }
}