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/*
* 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.launcher3;
import android.content.ComponentName;
import android.content.Context;
import cyanogenmod.providers.CMSettings;
import java.util.ArrayList;
public class ProtectedComponentsHelper {
private static final int FILTER_APPS_SYSTEM_FLAG = 1;
private static final int FILTER_APPS_DOWNLOADED_FLAG = 2;
private static int sFilterApps = FILTER_APPS_SYSTEM_FLAG | FILTER_APPS_DOWNLOADED_FLAG;
private static ArrayList<ComponentName> sProtectedApps = new ArrayList<ComponentName>();
private static ArrayList<String> sProtectedPackages = new ArrayList<String>();
/**
* Gets the list of protected components from {@link CMSettings} and updates the existing list
* of protected apps and packages
* @param context Context
*/
public static void updateProtectedComponentsLists(Context context) {
String protectedComponents = CMSettings.Secure.getString(context.getContentResolver(),
CMSettings.Secure.PROTECTED_COMPONENTS);
protectedComponents = protectedComponents == null ? "" : protectedComponents;
String [] flattened = protectedComponents.split("\\|");
sProtectedApps = new ArrayList<ComponentName>(flattened.length);
sProtectedPackages = new ArrayList<String>(flattened.length);
for (String flat : flattened) {
ComponentName cmp = ComponentName.unflattenFromString(flat);
if (cmp != null) {
sProtectedApps.add(cmp);
sProtectedPackages.add(cmp.getPackageName());
}
}
}
/**
* Checks if the given combination of {@link ComponentName} and flags is for a protected app
*/
public static boolean isProtectedApp(int flags, ComponentName componentName) {
boolean system = isSystemFlag(flags);
return sProtectedApps.contains(componentName) || (system && !getShowSystemApps()) ||
(!system && !getShowDownloadedApps());
}
/**
* Checks if the given combination of package name and flags is for a protected package
*/
public static boolean isProtectedPackage(int flags, String packageName) {
boolean system = isSystemFlag(flags);
return (sProtectedPackages.contains(packageName) || (system && !getShowSystemApps()) ||
(!system && !getShowDownloadedApps()));
}
private static boolean isSystemFlag(int flags) {
return (flags & AppInfo.DOWNLOADED_FLAG) == 0;
}
private static boolean getShowSystemApps() {
return (sFilterApps & FILTER_APPS_SYSTEM_FLAG) != 0;
}
private static boolean getShowDownloadedApps() {
return (sFilterApps & FILTER_APPS_DOWNLOADED_FLAG) != 0;
}
}
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