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      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 
     48     public RecentsSystemUser(Context context, RecentsImpl impl) {
     49         mContext = context;
     50         mImpl = impl;
     51     }
     52 
     53     @Override
     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 
     76     public IRecentsNonSystemUserCallbacks getNonSystemUserRecentsForUser(int userId) {
     77         return mNonSystemUserRecents.get(userId);
     78     }
     79 
     80     @Override
     81     public void updateRecentsVisibility(boolean visible) {
     82         ForegroundThread.getHandler().post(() -> {
     83             mImpl.onVisibilityChanged(mContext, visible);
     84         });
     85     }
     86 
     87     @Override
     88     public void startScreenPinning(int taskId) {
     89         ForegroundThread.getHandler().post(() -> {
     90             mImpl.onStartScreenPinning(mContext, taskId);
     91         });
     92     }
     93 
     94     @Override
     95     public void sendRecentsDrawnEvent() {
     96         EventBus.getDefault().post(new RecentsDrawnEvent());
     97     }
     98 
     99     @Override
    100     public void sendDockingTopTaskEvent(int dragMode, Rect initialRect) throws RemoteException {
    101         EventBus.getDefault().post(new DockedTopTaskEvent(dragMode, initialRect));
    102     }
    103 
    104     @Override
    105     public void sendLaunchRecentsEvent() throws RemoteException {
    106         EventBus.getDefault().post(new RecentsActivityStartingEvent());
    107     }
    108 }
    109