DefaultBrowserPreferenceController.java revision 6786d8cd5335d51479ec09b4aa0dd67a68bd9729 
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.defaultapps;
18
19import android.content.Context;
20import android.content.Intent;
21import android.content.pm.PackageManager;
22import android.content.pm.ResolveInfo;
23import android.net.Uri;
24import android.support.v7.preference.Preference;
25import android.text.TextUtils;
26
27import java.util.List;
28
29public class DefaultBrowserPreferenceController extends DefaultAppPreferenceController {
30
31    static final Intent BROWSE_PROBE = new Intent()
32            .setAction(Intent.ACTION_VIEW)
33            .addCategory(Intent.CATEGORY_BROWSABLE)
34            .setData(Uri.parse("http:"));
35
36    public DefaultBrowserPreferenceController(Context context) {
37        super(context);
38    }
39
40    @Override
41    public boolean isAvailable() {
42        return true;
43    }
44
45    @Override
46    public String getPreferenceKey() {
47        return "default_browser";
48    }
49
50    @Override
51    public void updateState(Preference preference) {
52        super.updateState(preference);
53        final DefaultAppInfo defaultApp = getDefaultAppInfo();
54        final CharSequence defaultAppLabel = defaultApp != null
55                ? defaultApp.loadLabel(mPackageManager.getPackageManager()) : null;
56        if (TextUtils.isEmpty(defaultAppLabel)) {
57            final String onlyAppLabel = getOnlyAppLabel();
58            if (!TextUtils.isEmpty(onlyAppLabel)) {
59                preference.setSummary(onlyAppLabel);
60            }
61        }
62    }
63
64    private String getOnlyAppLabel() {
65        // Resolve that intent and check that the handleAllWebDataURI boolean is set
66        final List<ResolveInfo> list = mPackageManager.queryIntentActivitiesAsUser(BROWSE_PROBE,
67                PackageManager.MATCH_ALL, mUserId);
68        if (list != null && list.size() == 1) {
69            return list.get(0).loadLabel(mPackageManager.getPackageManager()).toString();
70        }
71        return null;
72    }
73
74    @Override
75    protected DefaultAppInfo getDefaultAppInfo() {
76        try {
77            return new DefaultAppInfo(mPackageManager.getPackageManager().getApplicationInfo(
78                    mPackageManager.getDefaultBrowserPackageNameAsUser(mUserId), 0));
79        } catch (PackageManager.NameNotFoundException e) {
80            return null;
81        }
82    }
83
84    /**
85     * Whether or not the pkg contains browser capability
86     */
87    public static boolean hasBrowserPreference(String pkg, Context context) {
88        final Intent intent = new Intent(BROWSE_PROBE);
89        intent.setPackage(pkg);
90        final List<ResolveInfo> resolveInfos =
91                context.getPackageManager().queryIntentActivities(intent, 0);
92        return resolveInfos != null && resolveInfos.size() != 0;
93    }
94
95    /**
96     * Whether or not the pkg is the default browser
97     */
98    public boolean isBrowserDefault(String pkg, int userId) {
99        String defaultPackage = mPackageManager.getDefaultBrowserPackageNameAsUser(userId);
100        if (defaultPackage != null) {
101            return defaultPackage.equals(pkg);
102        }
103
104        final List<ResolveInfo> list = mPackageManager.queryIntentActivitiesAsUser(BROWSE_PROBE,
105                PackageManager.MATCH_ALL, userId);
106        // There is only 1 app, it must be the default browser.
107        return list != null && list.size() == 1;
108    }
109}
110