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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 package org.chromium.chromoting; | 5 package org.chromium.chromoting; |
6 | 6 |
7 import android.graphics.Matrix; | 7 import android.graphics.Matrix; |
8 import android.view.MotionEvent; | 8 import android.view.MotionEvent; |
9 | 9 |
10 import org.chromium.base.VisibleForTesting; | 10 import org.chromium.base.VisibleForTesting; |
11 import org.chromium.chromoting.jni.Client; | 11 import org.chromium.chromoting.jni.JniInterface; |
12 import org.chromium.chromoting.jni.TouchEventData; | 12 import org.chromium.chromoting.jni.TouchEventData; |
13 | 13 |
14 import java.util.ArrayList; | 14 import java.util.ArrayList; |
15 import java.util.LinkedList; | 15 import java.util.LinkedList; |
16 import java.util.List; | 16 import java.util.List; |
17 import java.util.Queue; | 17 import java.util.Queue; |
18 | 18 |
19 /** | 19 /** |
20 * This class receives local touch input events and forwards them to the remote
host. | 20 * This class receives local touch input events and forwards them to the remote
host. |
21 * A queue of MotionEvents is built up and then either transmitted to the remote
host if one of its | 21 * A queue of MotionEvents is built up and then either transmitted to the remote
host if one of its |
22 * remote gesture handler methods is called (such as onScroll) or it is cleared
if the current | 22 * remote gesture handler methods is called (such as onScroll) or it is cleared
if the current |
23 * stream of events does not represent a remote gesture. | 23 * stream of events does not represent a remote gesture. |
24 * NOTE: Not all touch gestures are remoted. Touch input and gestures outside t
he supported ones | 24 * NOTE: Not all touch gestures are remoted. Touch input and gestures outside t
he supported ones |
25 * (which includes tapping and 2 finger panning) will either affect the lo
cal canvas or | 25 * (which includes tapping and 2 finger panning) will either affect the lo
cal canvas or |
26 * will be dropped/ignored. | 26 * will be dropped/ignored. |
27 */ | 27 */ |
28 public class TouchInputStrategy implements InputStrategyInterface { | 28 public class TouchInputStrategy implements InputStrategyInterface { |
29 /** | 29 /** |
30 * This interface abstracts the injection mechanism to allow for unit testin
g. | 30 * This interface abstracts the injection mechanism to allow for unit testin
g. |
31 */ | 31 */ |
32 public interface RemoteInputInjector { | 32 public interface RemoteInputInjector { |
33 public void injectMouseEvent(int x, int y, int button, boolean buttonDow
n); | 33 public void injectMouseEvent(int x, int y, int button, boolean buttonDow
n); |
34 public void injectTouchEvent(TouchEventData.EventType eventType, TouchEv
entData[] data); | 34 public void injectTouchEvent(TouchEventData.EventType eventType, TouchEv
entData[] data); |
35 } | 35 } |
36 | 36 |
37 /** | 37 /** |
38 * This class provides the default implementation for injecting remote event
s. | 38 * This class provides the default implementation for injecting remote event
s. |
39 */ | 39 */ |
40 private class DefaultInputInjector implements RemoteInputInjector { | 40 private static class DefaultInputInjector implements RemoteInputInjector { |
41 @Override | 41 @Override |
42 public void injectMouseEvent(int x, int y, int button, boolean buttonDow
n) { | 42 public void injectMouseEvent(int x, int y, int button, boolean buttonDow
n) { |
43 mClient.sendMouseEvent(x, y, button, buttonDown); | 43 JniInterface.sendMouseEvent(x, y, button, buttonDown); |
44 } | 44 } |
45 | 45 |
46 @Override | 46 @Override |
47 public void injectTouchEvent(TouchEventData.EventType eventType, TouchEv
entData[] data) { | 47 public void injectTouchEvent(TouchEventData.EventType eventType, TouchEv
entData[] data) { |
48 mClient.sendTouchEvent(eventType, data); | 48 JniInterface.sendTouchEvent(eventType, data); |
49 } | 49 } |
50 } | 50 } |
51 | 51 |
52 /** | 52 /** |
53 * Contains the maximum number of MotionEvents to store before cancelling th
e current gesture. | 53 * Contains the maximum number of MotionEvents to store before cancelling th
e current gesture. |
54 * The size is ~3x the largest number of events seen during any remotable ge
sture sequence. | 54 * The size is ~3x the largest number of events seen during any remotable ge
sture sequence. |
55 */ | 55 */ |
56 private static final int QUEUED_EVENT_THRESHOLD = 50; | 56 private static final int QUEUED_EVENT_THRESHOLD = 50; |
57 | 57 |
58 /** | 58 /** |
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70 private boolean mInRemoteGesture = false; | 70 private boolean mInRemoteGesture = false; |
71 | 71 |
72 /** | 72 /** |
73 * Indicates whether MotionEvents and gestures should be acted upon or ignor
ed. This flag is | 73 * Indicates whether MotionEvents and gestures should be acted upon or ignor
ed. This flag is |
74 * set when we believe that the current sequence of events is not something
we should remote. | 74 * set when we believe that the current sequence of events is not something
we should remote. |
75 */ | 75 */ |
76 private boolean mIgnoreTouchEvents = false; | 76 private boolean mIgnoreTouchEvents = false; |
77 | 77 |
78 private final RenderData mRenderData; | 78 private final RenderData mRenderData; |
79 | 79 |
80 private final Client mClient; | |
81 | |
82 private RemoteInputInjector mRemoteInputInjector; | 80 private RemoteInputInjector mRemoteInputInjector; |
83 | 81 |
84 public TouchInputStrategy(RenderData renderData, Client client) { | 82 public TouchInputStrategy(RenderData renderData) { |
85 mRenderData = renderData; | 83 mRenderData = renderData; |
86 mClient = client; | |
87 mRemoteInputInjector = new DefaultInputInjector(); | 84 mRemoteInputInjector = new DefaultInputInjector(); |
88 mQueuedEvents = new LinkedList<MotionEvent>(); | 85 mQueuedEvents = new LinkedList<MotionEvent>(); |
89 | 86 |
90 synchronized (mRenderData) { | 87 synchronized (mRenderData) { |
91 mRenderData.drawCursor = false; | 88 mRenderData.drawCursor = false; |
92 } | 89 } |
93 } | 90 } |
94 | 91 |
95 @Override | 92 @Override |
96 public boolean onTap(int button) { | 93 public boolean onTap(int button) { |
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310 | 307 |
311 return event; | 308 return event; |
312 } | 309 } |
313 | 310 |
314 private void resetStateData() { | 311 private void resetStateData() { |
315 clearQueuedEvents(); | 312 clearQueuedEvents(); |
316 mInRemoteGesture = false; | 313 mInRemoteGesture = false; |
317 mIgnoreTouchEvents = false; | 314 mIgnoreTouchEvents = false; |
318 } | 315 } |
319 } | 316 } |
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