1 /*
2  * Copyright (C) 2011 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.server.wm;
18 
19 import com.android.server.input.InputApplicationHandle;
20 import com.android.server.input.InputWindowHandle;
21 
22 import android.os.Looper;
23 import android.os.Process;
24 import android.view.Display;
25 import android.view.InputChannel;
26 import android.view.InputEventReceiver;
27 import android.view.WindowManagerPolicy;
28 
29 public final class FakeWindowImpl implements WindowManagerPolicy.FakeWindow {
30     final WindowManagerService mService;
31     final InputChannel mServerChannel, mClientChannel;
32     final InputApplicationHandle mApplicationHandle;
33     final InputWindowHandle mWindowHandle;
34     final InputEventReceiver mInputEventReceiver;
35     final int mWindowLayer;
36 
37     boolean mTouchFullscreen;
38 
FakeWindowImpl(WindowManagerService service, Looper looper, InputEventReceiver.Factory inputEventReceiverFactory, String name, int windowType, int layoutParamsFlags, boolean canReceiveKeys, boolean hasFocus, boolean touchFullscreen)39     public FakeWindowImpl(WindowManagerService service,
40             Looper looper, InputEventReceiver.Factory inputEventReceiverFactory,
41             String name, int windowType, int layoutParamsFlags,
42             boolean canReceiveKeys, boolean hasFocus, boolean touchFullscreen) {
43         mService = service;
44 
45         InputChannel[] channels = InputChannel.openInputChannelPair(name);
46         mServerChannel = channels[0];
47         mClientChannel = channels[1];
48         mService.mInputManager.registerInputChannel(mServerChannel, null);
49 
50         mInputEventReceiver = inputEventReceiverFactory.createInputEventReceiver(
51                 mClientChannel, looper);
52 
53         mApplicationHandle = new InputApplicationHandle(null);
54         mApplicationHandle.name = name;
55         mApplicationHandle.dispatchingTimeoutNanos =
56                 WindowManagerService.DEFAULT_INPUT_DISPATCHING_TIMEOUT_NANOS;
57 
58         mWindowHandle = new InputWindowHandle(mApplicationHandle, null, Display.DEFAULT_DISPLAY);
59         mWindowHandle.name = name;
60         mWindowHandle.inputChannel = mServerChannel;
61         mWindowLayer = getLayerLw(windowType);
62         mWindowHandle.layer = mWindowLayer;
63         mWindowHandle.layoutParamsFlags = layoutParamsFlags;
64         mWindowHandle.layoutParamsType = windowType;
65         mWindowHandle.dispatchingTimeoutNanos =
66                 WindowManagerService.DEFAULT_INPUT_DISPATCHING_TIMEOUT_NANOS;
67         mWindowHandle.visible = true;
68         mWindowHandle.canReceiveKeys = canReceiveKeys;
69         mWindowHandle.hasFocus = hasFocus;
70         mWindowHandle.hasWallpaper = false;
71         mWindowHandle.paused = false;
72         mWindowHandle.ownerPid = Process.myPid();
73         mWindowHandle.ownerUid = Process.myUid();
74         mWindowHandle.inputFeatures = 0;
75         mWindowHandle.scaleFactor = 1.0f;
76 
77         mTouchFullscreen = touchFullscreen;
78     }
79 
layout(int dw, int dh)80     void layout(int dw, int dh) {
81         if (mTouchFullscreen) {
82             mWindowHandle.touchableRegion.set(0, 0, dw, dh);
83         } else {
84             mWindowHandle.touchableRegion.setEmpty();
85         }
86         mWindowHandle.frameLeft = 0;
87         mWindowHandle.frameTop = 0;
88         mWindowHandle.frameRight = dw;
89         mWindowHandle.frameBottom = dh;
90     }
91 
92     @Override
dismiss()93     public void dismiss() {
94         synchronized (mService.mWindowMap) {
95             if (mService.removeFakeWindowLocked(this)) {
96                 mInputEventReceiver.dispose();
97                 mService.mInputManager.unregisterInputChannel(mServerChannel);
98                 mClientChannel.dispose();
99                 mServerChannel.dispose();
100             }
101         }
102     }
103 
getLayerLw(int windowType)104     private int getLayerLw(int windowType) {
105         return mService.mPolicy.windowTypeToLayerLw(windowType)
106                 * WindowManagerService.TYPE_LAYER_MULTIPLIER
107                 + WindowManagerService.TYPE_LAYER_OFFSET;
108     }
109 }
110