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.pip.phone.ForegroundThread;
30 import com.android.systemui.recents.events.EventBus;
31 import com.android.systemui.recents.events.activity.DockedFirstAnimationFrameEvent;
32 import com.android.systemui.recents.events.activity.DockedTopTaskEvent;
33 import com.android.systemui.recents.events.activity.RecentsActivityStartingEvent;
34 import com.android.systemui.recents.events.component.SetWaitingForTransitionStartEvent;
35 import com.android.systemui.recents.events.ui.RecentsDrawnEvent;
36 
37 /**
38  * An implementation of the system user's Recents interface to be called remotely by secondary
39  * users.
40  */
41 public class RecentsSystemUser extends IRecentsSystemUserCallbacks.Stub {
42 
43     private static final String TAG = "RecentsSystemUser";
44 
45     private Context mContext;
46     private RecentsImpl mImpl;
47     private final SparseArray<IRecentsNonSystemUserCallbacks> mNonSystemUserRecents =
48             new SparseArray<>();
49 
RecentsSystemUser(Context context, RecentsImpl impl)50     public RecentsSystemUser(Context context, RecentsImpl impl) {
51         mContext = context;
52         mImpl = impl;
53     }
54 
55     @Override
registerNonSystemUserCallbacks(final IBinder nonSystemUserCallbacks, final int userId)56     public void registerNonSystemUserCallbacks(final IBinder nonSystemUserCallbacks,
57             final int userId) {
58         try {
59             final IRecentsNonSystemUserCallbacks callback =
60                     IRecentsNonSystemUserCallbacks.Stub.asInterface(nonSystemUserCallbacks);
61             nonSystemUserCallbacks.linkToDeath(new IBinder.DeathRecipient() {
62                 @Override
63                 public void binderDied() {
64                     mNonSystemUserRecents.removeAt(mNonSystemUserRecents.indexOfValue(callback));
65                     EventLog.writeEvent(EventLogTags.SYSUI_RECENTS_CONNECTION,
66                             EventLogConstants.SYSUI_RECENTS_CONNECTION_SYSTEM_UNREGISTER_USER,
67                             userId);
68                 }
69             }, 0);
70             mNonSystemUserRecents.put(userId, callback);
71             EventLog.writeEvent(EventLogTags.SYSUI_RECENTS_CONNECTION,
72                     EventLogConstants.SYSUI_RECENTS_CONNECTION_SYSTEM_REGISTER_USER, userId);
73         } catch (RemoteException e) {
74             Log.e(TAG, "Failed to register NonSystemUserCallbacks", e);
75         }
76     }
77 
getNonSystemUserRecentsForUser(int userId)78     public IRecentsNonSystemUserCallbacks getNonSystemUserRecentsForUser(int userId) {
79         return mNonSystemUserRecents.get(userId);
80     }
81 
82     @Override
updateRecentsVisibility(boolean visible)83     public void updateRecentsVisibility(boolean visible) {
84         ForegroundThread.getHandler().post(() -> {
85             mImpl.onVisibilityChanged(mContext, visible);
86         });
87     }
88 
89     @Override
startScreenPinning(int taskId)90     public void startScreenPinning(int taskId) {
91         ForegroundThread.getHandler().post(() -> {
92             mImpl.onStartScreenPinning(mContext, taskId);
93         });
94     }
95 
96     @Override
sendRecentsDrawnEvent()97     public void sendRecentsDrawnEvent() {
98         EventBus.getDefault().post(new RecentsDrawnEvent());
99     }
100 
101     @Override
sendDockingTopTaskEvent(Rect initialRect)102     public void sendDockingTopTaskEvent(Rect initialRect) throws RemoteException {
103         EventBus.getDefault().post(new DockedTopTaskEvent(initialRect));
104     }
105 
106     @Override
sendLaunchRecentsEvent()107     public void sendLaunchRecentsEvent() throws RemoteException {
108         EventBus.getDefault().post(new RecentsActivityStartingEvent());
109     }
110 
111     @Override
sendDockedFirstAnimationFrameEvent()112     public void sendDockedFirstAnimationFrameEvent() throws RemoteException {
113         EventBus.getDefault().post(new DockedFirstAnimationFrameEvent());
114     }
115 
116     @Override
setWaitingForTransitionStartEvent(boolean waitingForTransitionStart)117     public void setWaitingForTransitionStartEvent(boolean waitingForTransitionStart) {
118         EventBus.getDefault().post(new SetWaitingForTransitionStartEvent(
119                 waitingForTransitionStart));
120     }
121 }
122