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      1 /*
      2  * Copyright (C) 2014 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 static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME;
     20 import static android.app.WindowConfiguration.ACTIVITY_TYPE_RECENTS;
     21 import static android.app.WindowConfiguration.ACTIVITY_TYPE_UNDEFINED;
     22 
     23 import android.app.ActivityManager;
     24 import android.app.trust.TrustManager;
     25 import android.content.Context;
     26 import android.graphics.Point;
     27 import android.graphics.Rect;
     28 import android.hardware.display.DisplayManager;
     29 import android.os.Handler;
     30 import android.os.RemoteException;
     31 import android.util.Log;
     32 import android.view.Display;
     33 import android.widget.Toast;
     34 
     35 import com.android.systemui.Dependency;
     36 import com.android.systemui.R;
     37 import com.android.systemui.SysUiServiceProvider;
     38 import com.android.systemui.shared.recents.IOverviewProxy;
     39 import com.android.systemui.shared.system.ActivityManagerWrapper;
     40 import com.android.systemui.stackdivider.Divider;
     41 import com.android.systemui.statusbar.phone.StatusBar;
     42 
     43 /**
     44  * An implementation of the Recents interface which proxies to the OverviewProxyService.
     45  */
     46 public class OverviewProxyRecentsImpl implements RecentsImplementation {
     47 
     48     private final static String TAG = "OverviewProxyRecentsImpl";
     49 
     50     private SysUiServiceProvider mSysUiServiceProvider;
     51     private Context mContext;
     52     private Handler mHandler;
     53     private TrustManager mTrustManager;
     54     private OverviewProxyService mOverviewProxyService;
     55 
     56     @Override
     57     public void onStart(Context context, SysUiServiceProvider sysUiServiceProvider) {
     58         mContext = context;
     59         mSysUiServiceProvider = sysUiServiceProvider;
     60         mHandler = new Handler();
     61         mTrustManager = (TrustManager) context.getSystemService(Context.TRUST_SERVICE);
     62         mOverviewProxyService = Dependency.get(OverviewProxyService.class);
     63     }
     64 
     65     @Override
     66     public void showRecentApps(boolean triggeredFromAltTab) {
     67         IOverviewProxy overviewProxy = mOverviewProxyService.getProxy();
     68         if (overviewProxy != null) {
     69             try {
     70                 overviewProxy.onOverviewShown(triggeredFromAltTab);
     71                 return;
     72             } catch (RemoteException e) {
     73                 Log.e(TAG, "Failed to send overview show event to launcher.", e);
     74             }
     75         } else {
     76             // Do nothing
     77         }
     78     }
     79 
     80     @Override
     81     public void hideRecentApps(boolean triggeredFromAltTab, boolean triggeredFromHomeKey) {
     82         IOverviewProxy overviewProxy = mOverviewProxyService.getProxy();
     83         if (overviewProxy != null) {
     84             try {
     85                 overviewProxy.onOverviewHidden(triggeredFromAltTab, triggeredFromHomeKey);
     86                 return;
     87             } catch (RemoteException e) {
     88                 Log.e(TAG, "Failed to send overview hide event to launcher.", e);
     89             }
     90         } else {
     91             // Do nothing
     92         }
     93     }
     94 
     95     @Override
     96     public void toggleRecentApps() {
     97         // If connected to launcher service, let it handle the toggle logic
     98         IOverviewProxy overviewProxy = mOverviewProxyService.getProxy();
     99         if (overviewProxy != null) {
    100             final Runnable toggleRecents = () -> {
    101                 try {
    102                     if (mOverviewProxyService.getProxy() != null) {
    103                         mOverviewProxyService.getProxy().onOverviewToggle();
    104                     }
    105                 } catch (RemoteException e) {
    106                     Log.e(TAG, "Cannot send toggle recents through proxy service.", e);
    107                 }
    108             };
    109             // Preload only if device for current user is unlocked
    110             final StatusBar statusBar = mSysUiServiceProvider.getComponent(StatusBar.class);
    111             if (statusBar != null && statusBar.isKeyguardShowing()) {
    112                 statusBar.executeRunnableDismissingKeyguard(() -> {
    113                         // Flush trustmanager before checking device locked per user
    114                         mTrustManager.reportKeyguardShowingChanged();
    115                         mHandler.post(toggleRecents);
    116                     }, null,  true /* dismissShade */, false /* afterKeyguardGone */,
    117                     true /* deferred */);
    118             } else {
    119                 toggleRecents.run();
    120             }
    121             return;
    122         } else {
    123             // Do nothing
    124         }
    125     }
    126 
    127     @Override
    128     public boolean splitPrimaryTask(int stackCreateMode, Rect initialBounds,
    129             int metricsDockAction) {
    130         Point realSize = new Point();
    131         if (initialBounds == null) {
    132             mContext.getSystemService(DisplayManager.class).getDisplay(Display.DEFAULT_DISPLAY)
    133                     .getRealSize(realSize);
    134             initialBounds = new Rect(0, 0, realSize.x, realSize.y);
    135         }
    136 
    137         ActivityManager.RunningTaskInfo runningTask =
    138                 ActivityManagerWrapper.getInstance().getRunningTask();
    139         final int activityType = runningTask != null
    140                 ? runningTask.configuration.windowConfiguration.getActivityType()
    141                 : ACTIVITY_TYPE_UNDEFINED;
    142         boolean screenPinningActive = ActivityManagerWrapper.getInstance().isScreenPinningActive();
    143         boolean isRunningTaskInHomeOrRecentsStack =
    144                 activityType == ACTIVITY_TYPE_HOME || activityType == ACTIVITY_TYPE_RECENTS;
    145         if (runningTask != null && !isRunningTaskInHomeOrRecentsStack && !screenPinningActive) {
    146             if (runningTask.supportsSplitScreenMultiWindow) {
    147                 if (ActivityManagerWrapper.getInstance().setTaskWindowingModeSplitScreenPrimary(
    148                         runningTask.id, stackCreateMode, initialBounds)) {
    149                     // The overview service is handling split screen, so just skip the wait for the
    150                     // first draw and notify the divider to start animating now
    151                     final Divider divider = mSysUiServiceProvider.getComponent(Divider.class);
    152                     if (divider != null) {
    153                         divider.onRecentsDrawn();
    154                     }
    155                     return true;
    156                 }
    157             } else {
    158                 Toast.makeText(mContext, R.string.dock_non_resizeble_failed_to_dock_text,
    159                         Toast.LENGTH_SHORT).show();
    160             }
    161         }
    162         return false;
    163     }
    164 }
    165