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 
17 package com.android.internal.policy;
18 
19 import android.content.Context;
20 import android.content.res.AssetManager;
21 import android.content.res.Resources;
22 import android.view.ContextThemeWrapper;
23 import android.view.WindowManager;
24 import android.view.WindowManagerImpl;
25 
26 /**
27  * Context for decor views which can be seeded with pure application context and not depend on the
28  * activity, but still provide some of the facilities that Activity has,
29  * e.g. themes, activity-based resources, etc.
30  *
31  * @hide
32  */
33 class DecorContext extends ContextThemeWrapper {
34     private PhoneWindow mPhoneWindow;
35     private WindowManager mWindowManager;
36     private Resources mActivityResources;
37 
DecorContext(Context context, Resources activityResources)38     public DecorContext(Context context, Resources activityResources) {
39         super(context, null);
40         mActivityResources = activityResources;
41     }
42 
setPhoneWindow(PhoneWindow phoneWindow)43     void setPhoneWindow(PhoneWindow phoneWindow) {
44         mPhoneWindow = phoneWindow;
45         mWindowManager = null;
46     }
47 
48     @Override
getSystemService(String name)49     public Object getSystemService(String name) {
50         if (Context.WINDOW_SERVICE.equals(name)) {
51             if (mWindowManager == null) {
52                 WindowManagerImpl wm =
53                         (WindowManagerImpl) super.getSystemService(Context.WINDOW_SERVICE);
54                 mWindowManager = wm.createLocalWindowManager(mPhoneWindow);
55             }
56             return mWindowManager;
57         }
58         return super.getSystemService(name);
59     }
60 
61     @Override
getResources()62     public Resources getResources() {
63         return mActivityResources;
64     }
65 
66     @Override
getAssets()67     public AssetManager getAssets() {
68         return mActivityResources.getAssets();
69     }
70 }
71