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.systemui.recents;
18 
19 import android.content.Context;
20 import android.graphics.Rect;
21 import android.os.IBinder;
22 import android.os.RemoteException;
23 import android.util.EventLog;
24 import android.util.Log;
25 import android.util.SparseArray;
26 
27 import com.android.systemui.EventLogConstants;
28 import com.android.systemui.EventLogTags;
29 import com.android.systemui.recents.events.EventBus;
30 import com.android.systemui.recents.events.activity.DockedTopTaskEvent;
31 import com.android.systemui.recents.events.activity.RecentsActivityStartingEvent;
32 import com.android.systemui.recents.events.ui.RecentsDrawnEvent;
33 import com.android.systemui.recents.misc.ForegroundThread;
34 
35 /**
36  * An implementation of the system user's Recents interface to be called remotely by secondary
37  * users.
38  */
39 public class RecentsSystemUser extends IRecentsSystemUserCallbacks.Stub {
40 
41     private static final String TAG = "RecentsSystemUser";
42 
43     private Context mContext;
44     private RecentsImpl mImpl;
45     private final SparseArray<IRecentsNonSystemUserCallbacks> mNonSystemUserRecents =
46             new SparseArray<>();
47 
RecentsSystemUser(Context context, RecentsImpl impl)48     public RecentsSystemUser(Context context, RecentsImpl impl) {
49         mContext = context;
50         mImpl = impl;
51     }
52 
53     @Override
registerNonSystemUserCallbacks(final IBinder nonSystemUserCallbacks, final int userId)54     public void registerNonSystemUserCallbacks(final IBinder nonSystemUserCallbacks,
55             final int userId) {
56         try {
57             final IRecentsNonSystemUserCallbacks callback =
58                     IRecentsNonSystemUserCallbacks.Stub.asInterface(nonSystemUserCallbacks);
59             nonSystemUserCallbacks.linkToDeath(new IBinder.DeathRecipient() {
60                 @Override
61                 public void binderDied() {
62                     mNonSystemUserRecents.removeAt(mNonSystemUserRecents.indexOfValue(callback));
63                     EventLog.writeEvent(EventLogTags.SYSUI_RECENTS_CONNECTION,
64                             EventLogConstants.SYSUI_RECENTS_CONNECTION_SYSTEM_UNREGISTER_USER,
65                             userId);
66                 }
67             }, 0);
68             mNonSystemUserRecents.put(userId, callback);
69             EventLog.writeEvent(EventLogTags.SYSUI_RECENTS_CONNECTION,
70                     EventLogConstants.SYSUI_RECENTS_CONNECTION_SYSTEM_REGISTER_USER, userId);
71         } catch (RemoteException e) {
72             Log.e(TAG, "Failed to register NonSystemUserCallbacks", e);
73         }
74     }
75 
getNonSystemUserRecentsForUser(int userId)76     public IRecentsNonSystemUserCallbacks getNonSystemUserRecentsForUser(int userId) {
77         return mNonSystemUserRecents.get(userId);
78     }
79 
80     @Override
updateRecentsVisibility(boolean visible)81     public void updateRecentsVisibility(boolean visible) {
82         ForegroundThread.getHandler().post(() -> {
83             mImpl.onVisibilityChanged(mContext, visible);
84         });
85     }
86 
87     @Override
startScreenPinning(int taskId)88     public void startScreenPinning(int taskId) {
89         ForegroundThread.getHandler().post(() -> {
90             mImpl.onStartScreenPinning(mContext, taskId);
91         });
92     }
93 
94     @Override
sendRecentsDrawnEvent()95     public void sendRecentsDrawnEvent() {
96         EventBus.getDefault().post(new RecentsDrawnEvent());
97     }
98 
99     @Override
sendDockingTopTaskEvent(int dragMode, Rect initialRect)100     public void sendDockingTopTaskEvent(int dragMode, Rect initialRect) throws RemoteException {
101         EventBus.getDefault().post(new DockedTopTaskEvent(dragMode, initialRect));
102     }
103 
104     @Override
sendLaunchRecentsEvent()105     public void sendLaunchRecentsEvent() throws RemoteException {
106         EventBus.getDefault().post(new RecentsActivityStartingEvent());
107     }
108 }
109