PackageIntentsReceiver.java revision 7d67089aa1e9aa2123c3cd2f386d7019a1544db1 
1/*
2 * Copyright (C) 2015 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.tv.receiver;
18
19import android.content.BroadcastReceiver;
20import android.content.ComponentName;
21import android.content.Context;
22import android.content.Intent;
23import android.content.pm.PackageManager;
24import android.media.tv.TvInputInfo;
25import android.media.tv.TvInputManager;
26import android.os.Handler;
27
28import com.android.tv.Features;
29import com.android.tv.TvActivity;
30import com.android.tv.util.SetupUtils;
31
32import java.util.List;
33
34/**
35 * A class for handling the broadcast intents from PackageManager.
36 */
37public class PackageIntentsReceiver extends BroadcastReceiver {
38    // Delay before checking TvInputManager's input list.
39    // Sometimes TvInputManager's input list isn't updated yet when this receiver is called.
40    // So we should check the list after some delay.
41    private static final long TV_INPUT_UPDATE_DELAY_MS = 500;
42
43    private TvInputManager mTvInputManager;
44    private final Handler mHandler = new Handler();
45    private Runnable mOnPackageUpdatedRunnable;
46    private PackageManager mPackageManager;
47    private ComponentName mTvActivityComponentName;
48
49    private void init(Context context) {
50        mTvInputManager = (TvInputManager) context.getSystemService(Context.TV_INPUT_SERVICE);
51
52        final Context applicationContext = context.getApplicationContext();
53        mOnPackageUpdatedRunnable = new Runnable() {
54            @Override
55            public void run() {
56                if (!Features.ONBOARDING_EXPERIENCE.isEnabled(applicationContext)) {
57                    List<TvInputInfo> inputs = mTvInputManager.getTvInputList();
58                    // Enable the MainActivity only if there is at least one tuner type input.
59                    boolean enable = false;
60                    for (TvInputInfo input : inputs) {
61                        if (input.getType() == TvInputInfo.TYPE_TUNER) {
62                            enable = true;
63                            break;
64                        }
65                    }
66                    enableTvActivityWithinPackageManager(applicationContext, enable);
67                }
68
69                SetupUtils.getInstance(applicationContext).onInputListUpdated(mTvInputManager);
70            }
71        };
72
73        mPackageManager = applicationContext.getPackageManager();
74        mTvActivityComponentName = new ComponentName(applicationContext, TvActivity.class);
75    }
76
77    @Override
78    public void onReceive(Context context, Intent intent) {
79        if (mTvInputManager == null) {
80            init(context);
81        }
82
83        mHandler.removeCallbacks(mOnPackageUpdatedRunnable);
84        mHandler.postDelayed(mOnPackageUpdatedRunnable, TV_INPUT_UPDATE_DELAY_MS);
85
86    }
87
88
89    /**
90     * Enables/Disables {@link TvActivity}.
91     */
92    private void enableTvActivityWithinPackageManager(Context context, boolean enable) {
93        PackageManager pm = context.getPackageManager();
94        ComponentName name = new ComponentName(context, TvActivity.class);
95
96        int newState = enable ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED :
97                PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
98        if (pm.getComponentEnabledSetting(name) != newState) {
99            pm.setComponentEnabledSetting(name, newState, 0);
100        }
101    }
102}
103