blob: 6b0e4c9f010a2c65a9e2741d60aeae18059c9307 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.wm;
import android.view.InputChannel;
import android.view.InputDevice;
import android.view.InputEvent;
import android.view.InputEventReceiver;
import android.view.MotionEvent;
import android.view.WindowManagerPolicy.PointerEventListener;
import com.android.server.UiThread;
import java.util.ArrayList;
public class PointerEventDispatcher extends InputEventReceiver {
ArrayList<PointerEventListener> mListeners = new ArrayList<PointerEventListener>();
PointerEventListener[] mListenersArray = new PointerEventListener[0];
public PointerEventDispatcher(InputChannel inputChannel) {
super(inputChannel, UiThread.getHandler().getLooper());
}
@Override
public void onInputEvent(InputEvent event) {
try {
if (event instanceof MotionEvent
&& (event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) {
final MotionEvent motionEvent = (MotionEvent)event;
PointerEventListener[] listeners;
synchronized (mListeners) {
if (mListenersArray == null) {
mListenersArray = new PointerEventListener[mListeners.size()];
mListeners.toArray(mListenersArray);
}
listeners = mListenersArray;
}
for (int i = 0; i < listeners.length; ++i) {
listeners[i].onPointerEvent(motionEvent);
}
}
} finally {
finishInputEvent(event, false);
}
}
/**
* Add the specified listener to the list.
* @param listener The listener to add.
*/
public void registerInputEventListener(PointerEventListener listener) {
synchronized (mListeners) {
if (mListeners.contains(listener)) {
throw new IllegalStateException("registerInputEventListener: trying to register" +
listener + " twice.");
}
mListeners.add(listener);
mListenersArray = null;
}
}
/**
* Remove the specified listener from the list.
* @param listener The listener to remove.
*/
public void unregisterInputEventListener(PointerEventListener listener) {
synchronized (mListeners) {
if (!mListeners.contains(listener)) {
throw new IllegalStateException("registerInputEventListener: " + listener +
" not registered.");
}
mListeners.remove(listener);
mListenersArray = null;
}
}
}
|
