1/*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.settings.applications;
18
19import android.content.Context;
20import android.content.Intent;
21import android.content.pm.ResolveInfo;
22import android.util.Log;
23
24// This class provides methods that help dealing with app stores.
25public class AppStoreUtil {
26    private static final String LOG_TAG = "AppStoreUtil";
27
28    private static Intent resolveIntent(Context context, Intent i) {
29        ResolveInfo result = context.getPackageManager().resolveActivity(i, 0);
30        return result != null ? new Intent(i.getAction())
31                .setClassName(result.activityInfo.packageName, result.activityInfo.name) : null;
32    }
33
34    // Returns the package name of the app which installed a given packageName, if one is
35    // available.
36    public static String getInstallerPackageName(Context context, String packageName) {
37        String installerPackageName = null;
38        try {
39            installerPackageName =
40                    context.getPackageManager().getInstallerPackageName(packageName);
41        } catch (IllegalArgumentException e) {
42            Log.e(LOG_TAG, "Exception while retrieving the package installer of " + packageName, e);
43        }
44        return installerPackageName;
45    }
46
47    // Returns a link to the installer app store for a given package name.
48    public static Intent getAppStoreLink(Context context, String installerPackageName,
49            String packageName) {
50        Intent intent = new Intent(Intent.ACTION_SHOW_APP_INFO)
51                .setPackage(installerPackageName);
52        final Intent result = resolveIntent(context, intent);
53        if (result != null) {
54            result.putExtra(Intent.EXTRA_PACKAGE_NAME, packageName);
55            return result;
56        }
57        return null;
58    }
59
60    // Convenience method that looks up the installerPackageName for you.
61    public static Intent getAppStoreLink(Context context, String packageName) {
62      String installerPackageName = getInstallerPackageName(context, packageName);
63      return getAppStoreLink(context, installerPackageName, packageName);
64    }
65}
66