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/*
* Copyright (C) 2016 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.launcher3.util;
import android.app.AppOpsManager;
import android.content.ActivityNotFoundException;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.ApplicationInfo;
import android.content.pm.LauncherActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;
import android.graphics.Rect;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.PatternMatcher;
import android.os.UserHandle;
import android.text.TextUtils;
import android.util.Log;
import android.widget.Toast;
import com.android.launcher3.AppInfo;
import com.android.launcher3.ItemInfo;
import com.android.launcher3.LauncherAppWidgetInfo;
import com.android.launcher3.PendingAddItemInfo;
import com.android.launcher3.PromiseAppInfo;
import com.android.launcher3.R;
import com.android.launcher3.WorkspaceItemInfo;
import com.android.launcher3.compat.LauncherAppsCompat;
import java.net.URISyntaxException;
import java.util.List;
/**
* Utility methods using package manager
*/
public class PackageManagerHelper {
private static final String TAG = "PackageManagerHelper";
private final Context mContext;
private final PackageManager mPm;
private final LauncherAppsCompat mLauncherApps;
public PackageManagerHelper(Context context) {
mContext = context;
mPm = context.getPackageManager();
mLauncherApps = LauncherAppsCompat.getInstance(context);
}
/**
* Returns true if the app can possibly be on the SDCard. This is just a workaround and doesn't
* guarantee that the app is on SD card.
*/
public boolean isAppOnSdcard(String packageName, UserHandle user) {
ApplicationInfo info = mLauncherApps.getApplicationInfo(
packageName, PackageManager.MATCH_UNINSTALLED_PACKAGES, user);
return info != null && (info.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0;
}
/**
* Returns whether the target app is suspended for a given user as per
* {@link android.app.admin.DevicePolicyManager#isPackageSuspended}.
*/
public boolean isAppSuspended(String packageName, UserHandle user) {
ApplicationInfo info = mLauncherApps.getApplicationInfo(packageName, 0, user);
return info != null && isAppSuspended(info);
}
public boolean isSafeMode() {
return mContext.getPackageManager().isSafeMode();
}
public Intent getAppLaunchIntent(String pkg, UserHandle user) {
List<LauncherActivityInfo> activities = mLauncherApps.getActivityList(pkg, user);
return activities.isEmpty() ? null :
AppInfo.makeLaunchIntent(activities.get(0));
}
/**
* Returns whether an application is suspended as per
* {@link android.app.admin.DevicePolicyManager#isPackageSuspended}.
*/
public static boolean isAppSuspended(ApplicationInfo info) {
return (info.flags & ApplicationInfo.FLAG_SUSPENDED) != 0;
}
/**
* Returns true if {@param srcPackage} has the permission required to start the activity from
* {@param intent}. If {@param srcPackage} is null, then the activity should not need
* any permissions
*/
public boolean hasPermissionForActivity(Intent intent, String srcPackage) {
ResolveInfo target = mPm.resolveActivity(intent, 0);
if (target == null) {
// Not a valid target
return false;
}
if (TextUtils.isEmpty(target.activityInfo.permission)) {
// No permission is needed
return true;
}
if (TextUtils.isEmpty(srcPackage)) {
// The activity requires some permission but there is no source.
return false;
}
// Source does not have sufficient permissions.
if(mPm.checkPermission(target.activityInfo.permission, srcPackage) !=
PackageManager.PERMISSION_GRANTED) {
return false;
}
// On M and above also check AppOpsManager for compatibility mode permissions.
if (TextUtils.isEmpty(AppOpsManager.permissionToOp(target.activityInfo.permission))) {
// There is no app-op for this permission, which could have been disabled.
return true;
}
// There is no direct way to check if the app-op is allowed for a particular app. Since
// app-op is only enabled for apps running in compatibility mode, simply block such apps.
try {
return mPm.getApplicationInfo(srcPackage, 0).targetSdkVersion >= Build.VERSION_CODES.M;
} catch (NameNotFoundException e) { }
return false;
}
public Intent getMarketIntent(String packageName) {
return new Intent(Intent.ACTION_VIEW)
.setData(new Uri.Builder()
.scheme("market")
.authority("details")
.appendQueryParameter("id", packageName)
.build())
.putExtra(Intent.EXTRA_REFERRER, new Uri.Builder().scheme("android-app")
.authority(mContext.getPackageName()).build());
}
/**
* Creates a new market search intent.
*/
public static Intent getMarketSearchIntent(Context context, String query) {
try {
Intent intent = Intent.parseUri(context.getString(R.string.market_search_intent), 0);
if (!TextUtils.isEmpty(query)) {
intent.setData(
intent.getData().buildUpon().appendQueryParameter("q", query).build());
}
return intent;
} catch (URISyntaxException e) {
throw new RuntimeException(e);
}
}
/**
* Starts the details activity for {@code info}
*/
public void startDetailsActivityForInfo(ItemInfo info, Rect sourceBounds, Bundle opts) {
if (info instanceof PromiseAppInfo) {
PromiseAppInfo promiseAppInfo = (PromiseAppInfo) info;
mContext.startActivity(promiseAppInfo.getMarketIntent(mContext));
return;
}
ComponentName componentName = null;
if (info instanceof AppInfo) {
componentName = ((AppInfo) info).componentName;
} else if (info instanceof WorkspaceItemInfo) {
componentName = info.getTargetComponent();
} else if (info instanceof PendingAddItemInfo) {
componentName = ((PendingAddItemInfo) info).componentName;
} else if (info instanceof LauncherAppWidgetInfo) {
componentName = ((LauncherAppWidgetInfo) info).providerName;
}
if (componentName != null) {
try {
mLauncherApps.showAppDetailsForProfile(
componentName, info.user, sourceBounds, opts);
} catch (SecurityException | ActivityNotFoundException e) {
Toast.makeText(mContext, R.string.activity_not_found, Toast.LENGTH_SHORT).show();
Log.e(TAG, "Unable to launch settings", e);
}
}
}
/**
* Creates an intent filter to listen for actions with a specific package in the data field.
*/
public static IntentFilter getPackageFilter(String pkg, String... actions) {
IntentFilter packageFilter = new IntentFilter();
for (String action : actions) {
packageFilter.addAction(action);
}
packageFilter.addDataScheme("package");
packageFilter.addDataSchemeSpecificPart(pkg, PatternMatcher.PATTERN_LITERAL);
return packageFilter;
}
}
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