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 android.content.ContentResolver; 20 import android.content.res.Configuration; 21 import android.graphics.Rect; 22 import android.provider.Settings; 23 24 import com.android.systemui.R; 25 import com.android.systemui.SystemUI; 26 import com.android.systemui.statusbar.CommandQueue; 27 28 import java.io.FileDescriptor; 29 import java.io.PrintWriter; 30 31 /** 32 * A proxy to a Recents implementation. 33 */ 34 public class Recents extends SystemUI implements CommandQueue.Callbacks { 35 36 private RecentsImplementation mImpl; 37 38 @Override start()39 public void start() { 40 getComponent(CommandQueue.class).addCallback(this); 41 putComponent(Recents.class, this); 42 mImpl = createRecentsImplementationFromConfig(); 43 mImpl.onStart(mContext, this); 44 } 45 46 @Override onBootCompleted()47 public void onBootCompleted() { 48 mImpl.onBootCompleted(); 49 } 50 51 @Override onConfigurationChanged(Configuration newConfig)52 public void onConfigurationChanged(Configuration newConfig) { 53 mImpl.onConfigurationChanged(newConfig); 54 } 55 56 @Override appTransitionFinished(int displayId)57 public void appTransitionFinished(int displayId) { 58 if (mContext.getDisplayId() == displayId) { 59 mImpl.onAppTransitionFinished(); 60 } 61 } 62 growRecents()63 public void growRecents() { 64 mImpl.growRecents(); 65 } 66 67 @Override showRecentApps(boolean triggeredFromAltTab)68 public void showRecentApps(boolean triggeredFromAltTab) { 69 // Ensure the device has been provisioned before allowing the user to interact with 70 // recents 71 if (!isUserSetup()) { 72 return; 73 } 74 75 mImpl.showRecentApps(triggeredFromAltTab); 76 } 77 78 @Override hideRecentApps(boolean triggeredFromAltTab, boolean triggeredFromHomeKey)79 public void hideRecentApps(boolean triggeredFromAltTab, boolean triggeredFromHomeKey) { 80 // Ensure the device has been provisioned before allowing the user to interact with 81 // recents 82 if (!isUserSetup()) { 83 return; 84 } 85 86 mImpl.hideRecentApps(triggeredFromAltTab, triggeredFromHomeKey); 87 } 88 89 @Override toggleRecentApps()90 public void toggleRecentApps() { 91 // Ensure the device has been provisioned before allowing the user to interact with 92 // recents 93 if (!isUserSetup()) { 94 return; 95 } 96 97 mImpl.toggleRecentApps(); 98 } 99 100 @Override preloadRecentApps()101 public void preloadRecentApps() { 102 // Ensure the device has been provisioned before allowing the user to interact with 103 // recents 104 if (!isUserSetup()) { 105 return; 106 } 107 108 mImpl.preloadRecentApps(); 109 } 110 111 @Override cancelPreloadRecentApps()112 public void cancelPreloadRecentApps() { 113 // Ensure the device has been provisioned before allowing the user to interact with 114 // recents 115 if (!isUserSetup()) { 116 return; 117 } 118 119 mImpl.cancelPreloadRecentApps(); 120 } 121 splitPrimaryTask(int stackCreateMode, Rect initialBounds, int metricsDockAction)122 public boolean splitPrimaryTask(int stackCreateMode, Rect initialBounds, 123 int metricsDockAction) { 124 // Ensure the device has been provisioned before allowing the user to interact with 125 // recents 126 if (!isUserSetup()) { 127 return false; 128 } 129 130 return mImpl.splitPrimaryTask(stackCreateMode, initialBounds, metricsDockAction); 131 } 132 133 /** 134 * @return whether this device is provisioned and the current user is set up. 135 */ isUserSetup()136 private boolean isUserSetup() { 137 ContentResolver cr = mContext.getContentResolver(); 138 return (Settings.Global.getInt(cr, Settings.Global.DEVICE_PROVISIONED, 0) != 0) && 139 (Settings.Secure.getInt(cr, Settings.Secure.USER_SETUP_COMPLETE, 0) != 0); 140 } 141 142 /** 143 * @return The recents implementation from the config. 144 */ createRecentsImplementationFromConfig()145 private RecentsImplementation createRecentsImplementationFromConfig() { 146 final String clsName = mContext.getString(R.string.config_recentsComponent); 147 if (clsName == null || clsName.length() == 0) { 148 throw new RuntimeException("No recents component configured", null); 149 } 150 Class<?> cls = null; 151 try { 152 cls = mContext.getClassLoader().loadClass(clsName); 153 } catch (Throwable t) { 154 throw new RuntimeException("Error loading recents component: " + clsName, t); 155 } 156 try { 157 RecentsImplementation impl = (RecentsImplementation) cls.newInstance(); 158 return impl; 159 } catch (Throwable t) { 160 throw new RuntimeException("Error creating recents component: " + clsName, t); 161 } 162 } 163 164 @Override dump(FileDescriptor fd, PrintWriter pw, String[] args)165 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 166 mImpl.dump(pw); 167 } 168 } 169