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 17 package com.android.systemui.recents; 18 19 import android.graphics.Rect; 20 import android.os.Handler; 21 import android.os.Message; 22 import android.os.RemoteException; 23 24 import com.android.internal.os.SomeArgs; 25 26 /** 27 * A proxy class which directs all methods from {@link IRecentsNonSystemUserCallbacks} to 28 * {@link RecentsImpl} and makes sure they are called from the main thread. 29 */ 30 public class RecentsImplProxy extends IRecentsNonSystemUserCallbacks.Stub { 31 32 private static final int MSG_PRELOAD_RECENTS = 1; 33 private static final int MSG_CANCEL_PRELOADING_RECENTS = 2; 34 private static final int MSG_SHOW_RECENTS = 3; 35 private static final int MSG_HIDE_RECENTS = 4; 36 private static final int MSG_TOGGLE_RECENTS = 5; 37 private static final int MSG_ON_CONFIGURATION_CHANGED = 6; 38 private static final int MSG_DOCK_TOP_TASK = 7; 39 private static final int MSG_ON_DRAGGING_IN_RECENTS = 8; 40 private static final int MSG_ON_DRAGGING_IN_RECENTS_ENDED = 9; 41 private static final int MSG_SHOW_USER_TOAST = 10; 42 43 private RecentsImpl mImpl; 44 RecentsImplProxy(RecentsImpl recentsImpl)45 public RecentsImplProxy(RecentsImpl recentsImpl) { 46 mImpl = recentsImpl; 47 } 48 49 @Override preloadRecents()50 public void preloadRecents() throws RemoteException { 51 mHandler.sendEmptyMessage(MSG_PRELOAD_RECENTS); 52 } 53 54 @Override cancelPreloadingRecents()55 public void cancelPreloadingRecents() throws RemoteException { 56 mHandler.sendEmptyMessage(MSG_CANCEL_PRELOADING_RECENTS); 57 } 58 59 @Override showRecents(boolean triggeredFromAltTab, boolean draggingInRecents, boolean animate, int growTarget)60 public void showRecents(boolean triggeredFromAltTab, boolean draggingInRecents, boolean animate, 61 int growTarget) throws RemoteException { 62 SomeArgs args = SomeArgs.obtain(); 63 args.argi1 = triggeredFromAltTab ? 1 : 0; 64 args.argi2 = draggingInRecents ? 1 : 0; 65 args.argi3 = animate ? 1 : 0; 66 args.argi4 = growTarget; 67 mHandler.sendMessage(mHandler.obtainMessage(MSG_SHOW_RECENTS, args)); 68 } 69 70 @Override hideRecents(boolean triggeredFromAltTab, boolean triggeredFromHomeKey)71 public void hideRecents(boolean triggeredFromAltTab, boolean triggeredFromHomeKey) 72 throws RemoteException { 73 mHandler.sendMessage(mHandler.obtainMessage(MSG_HIDE_RECENTS, triggeredFromAltTab ? 1 :0, 74 triggeredFromHomeKey ? 1 : 0)); 75 } 76 77 @Override toggleRecents(int growTarget)78 public void toggleRecents(int growTarget) throws RemoteException { 79 SomeArgs args = SomeArgs.obtain(); 80 args.argi1 = growTarget; 81 mHandler.sendMessage(mHandler.obtainMessage(MSG_TOGGLE_RECENTS, args)); 82 } 83 84 @Override onConfigurationChanged()85 public void onConfigurationChanged() throws RemoteException { 86 mHandler.sendEmptyMessage(MSG_ON_CONFIGURATION_CHANGED); 87 } 88 89 @Override splitPrimaryTask(int topTaskId, int dragMode, int stackCreateMode, Rect initialBounds)90 public void splitPrimaryTask(int topTaskId, int dragMode, int stackCreateMode, 91 Rect initialBounds) throws RemoteException { 92 SomeArgs args = SomeArgs.obtain(); 93 args.argi1 = topTaskId; 94 args.argi2 = dragMode; 95 args.argi3 = stackCreateMode; 96 args.arg1 = initialBounds; 97 mHandler.sendMessage(mHandler.obtainMessage(MSG_DOCK_TOP_TASK, args)); 98 } 99 100 @Override onDraggingInRecents(float distanceFromTop)101 public void onDraggingInRecents(float distanceFromTop) throws RemoteException { 102 mHandler.sendMessage(mHandler.obtainMessage(MSG_ON_DRAGGING_IN_RECENTS, distanceFromTop)); 103 } 104 105 @Override onDraggingInRecentsEnded(float velocity)106 public void onDraggingInRecentsEnded(float velocity) throws RemoteException { 107 mHandler.sendMessage(mHandler.obtainMessage(MSG_ON_DRAGGING_IN_RECENTS_ENDED, velocity)); 108 } 109 110 @Override showCurrentUserToast(int msgResId, int msgLength)111 public void showCurrentUserToast(int msgResId, int msgLength) { 112 mHandler.sendMessage(mHandler.obtainMessage(MSG_SHOW_USER_TOAST, msgResId, msgLength)); 113 } 114 115 private final Handler mHandler = new Handler() { 116 117 @Override 118 public void handleMessage(Message msg) { 119 SomeArgs args; 120 switch (msg.what) { 121 case MSG_PRELOAD_RECENTS: 122 mImpl.preloadRecents(); 123 break; 124 case MSG_CANCEL_PRELOADING_RECENTS: 125 mImpl.cancelPreloadingRecents(); 126 break; 127 case MSG_SHOW_RECENTS: 128 args = (SomeArgs) msg.obj; 129 mImpl.showRecents(args.argi1 != 0, args.argi2 != 0, args.argi3 != 0, 130 args.argi4); 131 break; 132 case MSG_HIDE_RECENTS: 133 mImpl.hideRecents(msg.arg1 != 0, msg.arg2 != 0); 134 break; 135 case MSG_TOGGLE_RECENTS: 136 args = (SomeArgs) msg.obj; 137 mImpl.toggleRecents(args.argi1); 138 break; 139 case MSG_ON_CONFIGURATION_CHANGED: 140 mImpl.onConfigurationChanged(); 141 break; 142 case MSG_DOCK_TOP_TASK: 143 args = (SomeArgs) msg.obj; 144 mImpl.splitPrimaryTask(args.argi1, args.argi2, args.argi3 = 0, 145 (Rect) args.arg1); 146 break; 147 case MSG_ON_DRAGGING_IN_RECENTS: 148 mImpl.onDraggingInRecents((Float) msg.obj); 149 break; 150 case MSG_ON_DRAGGING_IN_RECENTS_ENDED: 151 mImpl.onDraggingInRecentsEnded((Float) msg.obj); 152 break; 153 case MSG_SHOW_USER_TOAST: 154 mImpl.onShowCurrentUserToast(msg.arg1, msg.arg2); 155 break; 156 default: 157 super.handleMessage(msg); 158 } 159 super.handleMessage(msg); 160 } 161 }; 162 } 163