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/*
* Copyright (C) 2014 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 org.cyanogenmod.trebuchet.home;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Bundle;
import android.util.Log;
import android.util.SparseArray;
import com.android.launcher.home.Home;
import java.util.List;
public class HomeUtils {
private static final String TAG = "HomeUtils";
// FIXME For now for security reason we will only support known Home apps
private static final String[] WELL_KNOWN_HOME_APP_PKGS =
{
"org.cyanogenmod.launcher.home"
};
public static final SparseArray<ComponentName> getInstalledHomePackages(Context context) {
// A Home app should:
// - declare the use of Home.PERMISSION_HOME_APP permission.
// - define the home stub class through the Home.METADATA_HOME_STUB metadata
SparseArray<ComponentName> installedHomePackages = new SparseArray<ComponentName>();
PackageManager packageManager = context.getPackageManager();
List<PackageInfo> installedPackages = packageManager.getInstalledPackages(
PackageManager.GET_PERMISSIONS);
for (PackageInfo pkg : installedPackages) {
boolean hasHomeAppPermission = false;
if (pkg.requestedPermissions != null) {
for (String perm : pkg.requestedPermissions) {
if (perm.equals(Home.PERMISSION_HOME_APP)) {
hasHomeAppPermission = true;
break;
}
}
}
if (hasHomeAppPermission) {
try {
ApplicationInfo appInfo = packageManager.getApplicationInfo(pkg.packageName,
PackageManager.GET_META_DATA);
Bundle metadata = appInfo.metaData;
if (metadata != null && metadata.containsKey(Home.METADATA_HOME_STUB)) {
String homeStub = metadata.getString(Home.METADATA_HOME_STUB);
installedHomePackages.put(appInfo.uid,
new ComponentName(pkg.packageName, homeStub));
}
} catch (NameNotFoundException ex) {
// Ignored. The package doesn't exists ¿?
}
}
}
// FIXME For now we only support known Home apps. Remove this checks when
// Trebuchet allows Home apps through the full Home Host Protocol
if (installedHomePackages.size() > 0) {
for (String pkg : WELL_KNOWN_HOME_APP_PKGS) {
int i = installedHomePackages.size() - 1;
boolean isWellKnownPkg = false;
for (; i >= 0; i--) {
int key = installedHomePackages.keyAt(i);
if (installedHomePackages.get(key).getPackageName().equals(pkg)) {
isWellKnownPkg = true;
break;
}
}
if (!isWellKnownPkg) {
installedHomePackages.removeAt(i);
}
}
}
return installedHomePackages;
}
public static Context createNewHomePackageContext(Context ctx, ComponentName pkg) {
// Create a new context package for the current user
try {
return ctx.createPackageContext(pkg.getPackageName(),
Context.CONTEXT_IGNORE_SECURITY | Context.CONTEXT_INCLUDE_CODE);
} catch (NameNotFoundException ex) {
Log.e(TAG, "Failed to load a home package context. Package not found.", ex);
}
return null;
}
}
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