RecentsImplProxy.java revision 675c5d8e5a6fd98e8324798e1ef31df20cee5b0f 
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.recents;
18
19import android.graphics.Rect;
20import android.os.Handler;
21import android.os.Message;
22import android.os.RemoteException;
23
24import 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 */
30public 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
45    public RecentsImplProxy(RecentsImpl recentsImpl) {
46        mImpl = recentsImpl;
47    }
48
49    @Override
50    public void preloadRecents() throws RemoteException {
51        mHandler.sendEmptyMessage(MSG_PRELOAD_RECENTS);
52    }
53
54    @Override
55    public void cancelPreloadingRecents() throws RemoteException {
56        mHandler.sendEmptyMessage(MSG_CANCEL_PRELOADING_RECENTS);
57    }
58
59    @Override
60    public void showRecents(boolean triggeredFromAltTab, boolean draggingInRecents, boolean animate,
61            boolean reloadTasks, boolean fromHome, int growTarget)
62            throws RemoteException {
63        SomeArgs args = SomeArgs.obtain();
64        args.argi1 = triggeredFromAltTab ? 1 : 0;
65        args.argi2 = draggingInRecents ? 1 : 0;
66        args.argi3 = animate ? 1 : 0;
67        args.argi4 = reloadTasks ? 1 : 0;
68        args.argi5 = fromHome ? 1 : 0;
69        args.argi6 = growTarget;
70        mHandler.sendMessage(mHandler.obtainMessage(MSG_SHOW_RECENTS, args));
71    }
72
73    @Override
74    public void hideRecents(boolean triggeredFromAltTab, boolean triggeredFromHomeKey)
75            throws RemoteException {
76        mHandler.sendMessage(mHandler.obtainMessage(MSG_HIDE_RECENTS, triggeredFromAltTab ? 1 :0,
77                triggeredFromHomeKey ? 1 : 0));
78    }
79
80    @Override
81    public void toggleRecents(int growTarget) throws RemoteException {
82        SomeArgs args = SomeArgs.obtain();
83        args.argi1 = growTarget;
84        mHandler.sendMessage(mHandler.obtainMessage(MSG_TOGGLE_RECENTS, args));
85    }
86
87    @Override
88    public void onConfigurationChanged() throws RemoteException {
89        mHandler.sendEmptyMessage(MSG_ON_CONFIGURATION_CHANGED);
90    }
91
92    @Override
93    public void dockTopTask(int topTaskId, int dragMode, int stackCreateMode,
94            Rect initialBounds) throws RemoteException {
95        SomeArgs args = SomeArgs.obtain();
96        args.argi1 = topTaskId;
97        args.argi2 = dragMode;
98        args.argi3 = stackCreateMode;
99        args.arg1 = initialBounds;
100        mHandler.sendMessage(mHandler.obtainMessage(MSG_DOCK_TOP_TASK, args));
101    }
102
103    @Override
104    public void onDraggingInRecents(float distanceFromTop) throws RemoteException {
105        mHandler.sendMessage(mHandler.obtainMessage(MSG_ON_DRAGGING_IN_RECENTS, distanceFromTop));
106    }
107
108    @Override
109    public void onDraggingInRecentsEnded(float velocity) throws RemoteException {
110        mHandler.sendMessage(mHandler.obtainMessage(MSG_ON_DRAGGING_IN_RECENTS_ENDED, velocity));
111    }
112
113    @Override
114    public void showCurrentUserToast(int msgResId, int msgLength) {
115        mHandler.sendMessage(mHandler.obtainMessage(MSG_SHOW_USER_TOAST, msgResId, msgLength));
116    }
117
118    private final Handler mHandler = new Handler() {
119
120        @Override
121        public void handleMessage(Message msg) {
122            SomeArgs args;
123            switch (msg.what) {
124                case MSG_PRELOAD_RECENTS:
125                    mImpl.preloadRecents();
126                    break;
127                case MSG_CANCEL_PRELOADING_RECENTS:
128                    mImpl.cancelPreloadingRecents();
129                    break;
130                case MSG_SHOW_RECENTS:
131                    args = (SomeArgs) msg.obj;
132                    mImpl.showRecents(args.argi1 != 0, args.argi2 != 0, args.argi3 != 0,
133                            args.argi4 != 0, args.argi5 != 0, args.argi6);
134                    break;
135                case MSG_HIDE_RECENTS:
136                    mImpl.hideRecents(msg.arg1 != 0, msg.arg2 != 0);
137                    break;
138                case MSG_TOGGLE_RECENTS:
139                    args = (SomeArgs) msg.obj;
140                    mImpl.toggleRecents(args.argi1);
141                    break;
142                case MSG_ON_CONFIGURATION_CHANGED:
143                    mImpl.onConfigurationChanged();
144                    break;
145                case MSG_DOCK_TOP_TASK:
146                    args = (SomeArgs) msg.obj;
147                    mImpl.dockTopTask(args.argi1, args.argi2, args.argi3 = 0,
148                            (Rect) args.arg1);
149                    break;
150                case MSG_ON_DRAGGING_IN_RECENTS:
151                    mImpl.onDraggingInRecents((Float) msg.obj);
152                    break;
153                case MSG_ON_DRAGGING_IN_RECENTS_ENDED:
154                    mImpl.onDraggingInRecentsEnded((Float) msg.obj);
155                    break;
156                case MSG_SHOW_USER_TOAST:
157                    mImpl.onShowCurrentUserToast(msg.arg1, msg.arg2);
158                    break;
159                default:
160                    super.handleMessage(msg);
161            }
162            super.handleMessage(msg);
163        }
164    };
165}
166