1/* 2 * Copyright (C) 2016 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 17package com.android.systemui.stackdivider; 18 19import static com.android.systemui.stackdivider.ForcedResizableInfoActivity 20 .EXTRA_FORCED_RESIZEABLE_REASON; 21 22import android.app.ActivityOptions; 23import android.content.Context; 24import android.content.Intent; 25import android.os.Handler; 26import android.os.UserHandle; 27import android.util.ArraySet; 28import android.widget.Toast; 29 30import com.android.systemui.R; 31import com.android.systemui.recents.events.EventBus; 32import com.android.systemui.recents.events.activity.AppTransitionFinishedEvent; 33import com.android.systemui.recents.events.component.ShowUserToastEvent; 34import com.android.systemui.recents.misc.SysUiTaskStackChangeListener; 35import com.android.systemui.recents.misc.SystemServicesProxy; 36import com.android.systemui.shared.system.ActivityManagerWrapper; 37import com.android.systemui.stackdivider.events.StartedDragingEvent; 38import com.android.systemui.stackdivider.events.StoppedDragingEvent; 39 40/** 41 * Controller that decides when to show the {@link ForcedResizableInfoActivity}. 42 */ 43public class ForcedResizableInfoActivityController { 44 45 private static final String SELF_PACKAGE_NAME = "com.android.systemui"; 46 47 private static final int TIMEOUT = 1000; 48 private final Context mContext; 49 private final Handler mHandler = new Handler(); 50 private final ArraySet<PendingTaskRecord> mPendingTasks = new ArraySet<>(); 51 private final ArraySet<String> mPackagesShownInSession = new ArraySet<>(); 52 private boolean mDividerDraging; 53 54 private final Runnable mTimeoutRunnable = new Runnable() { 55 @Override 56 public void run() { 57 showPending(); 58 } 59 }; 60 61 /** Record of force resized task that's pending to be handled. */ 62 private class PendingTaskRecord { 63 int taskId; 64 /** 65 * {@link android.app.ITaskStackListener#FORCED_RESIZEABLE_REASON_SPLIT_SCREEN} or 66 * {@link android.app.ITaskStackListener#FORCED_RESIZEABLE_REASON_SECONDARY_DISPLAY} 67 */ 68 int reason; 69 70 PendingTaskRecord(int taskId, int reason) { 71 this.taskId = taskId; 72 this.reason = reason; 73 } 74 } 75 76 public ForcedResizableInfoActivityController(Context context) { 77 mContext = context; 78 EventBus.getDefault().register(this); 79 ActivityManagerWrapper.getInstance().registerTaskStackListener( 80 new SysUiTaskStackChangeListener() { 81 @Override 82 public void onActivityForcedResizable(String packageName, int taskId, 83 int reason) { 84 activityForcedResizable(packageName, taskId, reason); 85 } 86 87 @Override 88 public void onActivityDismissingDockedStack() { 89 activityDismissingDockedStack(); 90 } 91 92 @Override 93 public void onActivityLaunchOnSecondaryDisplayFailed() { 94 activityLaunchOnSecondaryDisplayFailed(); 95 } 96 }); 97 } 98 99 public void notifyDockedStackExistsChanged(boolean exists) { 100 if (!exists) { 101 mPackagesShownInSession.clear(); 102 } 103 } 104 105 public final void onBusEvent(AppTransitionFinishedEvent event) { 106 if (!mDividerDraging) { 107 showPending(); 108 } 109 } 110 111 public final void onBusEvent(StartedDragingEvent event) { 112 mDividerDraging = true; 113 mHandler.removeCallbacks(mTimeoutRunnable); 114 } 115 116 public final void onBusEvent(StoppedDragingEvent event) { 117 mDividerDraging = false; 118 showPending(); 119 } 120 121 private void activityForcedResizable(String packageName, int taskId, int reason) { 122 if (debounce(packageName)) { 123 return; 124 } 125 mPendingTasks.add(new PendingTaskRecord(taskId, reason)); 126 postTimeout(); 127 } 128 129 private void activityDismissingDockedStack() { 130 EventBus.getDefault().send(new ShowUserToastEvent( 131 R.string.dock_non_resizeble_failed_to_dock_text, Toast.LENGTH_SHORT)); 132 } 133 134 private void activityLaunchOnSecondaryDisplayFailed() { 135 EventBus.getDefault().send(new ShowUserToastEvent( 136 R.string.activity_launch_on_secondary_display_failed_text, Toast.LENGTH_SHORT)); 137 } 138 139 private void showPending() { 140 mHandler.removeCallbacks(mTimeoutRunnable); 141 for (int i = mPendingTasks.size() - 1; i >= 0; i--) { 142 PendingTaskRecord pendingRecord = mPendingTasks.valueAt(i); 143 Intent intent = new Intent(mContext, ForcedResizableInfoActivity.class); 144 ActivityOptions options = ActivityOptions.makeBasic(); 145 options.setLaunchTaskId(pendingRecord.taskId); 146 // Set as task overlay and allow to resume, so that when an app enters split-screen and 147 // becomes paused, the overlay will still be shown. 148 options.setTaskOverlay(true, true /* canResume */); 149 intent.putExtra(EXTRA_FORCED_RESIZEABLE_REASON, pendingRecord.reason); 150 mContext.startActivityAsUser(intent, options.toBundle(), UserHandle.CURRENT); 151 } 152 mPendingTasks.clear(); 153 } 154 155 private void postTimeout() { 156 mHandler.removeCallbacks(mTimeoutRunnable); 157 mHandler.postDelayed(mTimeoutRunnable, TIMEOUT); 158 } 159 160 private boolean debounce(String packageName) { 161 if (packageName == null) { 162 return false; 163 } 164 165 // We launch ForcedResizableInfoActivity into a task that was forced resizable, so that 166 // triggers another notification. So ignore our own activity. 167 if (SELF_PACKAGE_NAME.equals(packageName)) { 168 return true; 169 } 170 boolean debounce = mPackagesShownInSession.contains(packageName); 171 mPackagesShownInSession.add(packageName); 172 return debounce; 173 } 174} 175