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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/input/synthetic_tap_gesture.h"
#include "base/logging.h"
#include "third_party/WebKit/public/web/WebInputEvent.h"
#include "ui/events/latency_info.h"
namespace content {
SyntheticTapGesture::SyntheticTapGesture(
const SyntheticTapGestureParams& params)
: params_(params),
gesture_source_type_(SyntheticGestureParams::DEFAULT_INPUT),
state_(SETUP) {
DCHECK_GE(params_.duration_ms, 0);
}
SyntheticTapGesture::~SyntheticTapGesture() {}
SyntheticGesture::Result SyntheticTapGesture::ForwardInputEvents(
const base::TimeTicks& timestamp, SyntheticGestureTarget* target) {
if (state_ == SETUP) {
gesture_source_type_ = params_.gesture_source_type;
if (gesture_source_type_ == SyntheticGestureParams::DEFAULT_INPUT)
gesture_source_type_ = target->GetDefaultSyntheticGestureSourceType();
state_ = PRESS;
}
DCHECK_NE(gesture_source_type_, SyntheticGestureParams::DEFAULT_INPUT);
if (gesture_source_type_ == SyntheticGestureParams::TOUCH_INPUT ||
gesture_source_type_ == SyntheticGestureParams::MOUSE_INPUT)
ForwardTouchOrMouseInputEvents(timestamp, target);
else
return SyntheticGesture::GESTURE_SOURCE_TYPE_NOT_IMPLEMENTED;
return (state_ == DONE) ? SyntheticGesture::GESTURE_FINISHED
: SyntheticGesture::GESTURE_RUNNING;
}
void SyntheticTapGesture::ForwardTouchOrMouseInputEvents(
const base::TimeTicks& timestamp, SyntheticGestureTarget* target) {
switch (state_) {
case PRESS:
Press(target, timestamp);
// Release immediately if duration is 0.
if (params_.duration_ms == 0) {
Release(target, timestamp);
state_ = DONE;
} else {
start_time_ = timestamp;
state_ = WAITING_TO_RELEASE;
}
break;
case WAITING_TO_RELEASE:
if (timestamp - start_time_ >= GetDuration()) {
Release(target, start_time_ + GetDuration());
state_ = DONE;
}
break;
case SETUP:
NOTREACHED() << "State SETUP invalid for synthetic tap gesture.";
case DONE:
NOTREACHED() << "State DONE invalid for synthetic tap gesture.";
}
}
void SyntheticTapGesture::Press(SyntheticGestureTarget* target,
const base::TimeTicks& timestamp) {
if (gesture_source_type_ == SyntheticGestureParams::TOUCH_INPUT) {
touch_event_.PressPoint(params_.position.x(), params_.position.y());
touch_event_.timeStampSeconds = ConvertTimestampToSeconds(timestamp);
target->DispatchInputEventToPlatform(touch_event_);
} else if (gesture_source_type_ == SyntheticGestureParams::MOUSE_INPUT) {
blink::WebMouseEvent mouse_event =
SyntheticWebMouseEventBuilder::Build(blink::WebInputEvent::MouseDown,
params_.position.x(),
params_.position.y(),
0);
mouse_event.clickCount = 1;
mouse_event.timeStampSeconds = ConvertTimestampToSeconds(timestamp);
target->DispatchInputEventToPlatform(mouse_event);
} else {
NOTREACHED() << "Invalid gesture source type for synthetic tap gesture.";
}
}
void SyntheticTapGesture::Release(SyntheticGestureTarget* target,
const base::TimeTicks& timestamp) {
if (gesture_source_type_ == SyntheticGestureParams::TOUCH_INPUT) {
touch_event_.ReleasePoint(0);
touch_event_.timeStampSeconds = ConvertTimestampToSeconds(timestamp);
target->DispatchInputEventToPlatform(touch_event_);
} else if (gesture_source_type_ == SyntheticGestureParams::MOUSE_INPUT) {
blink::WebMouseEvent mouse_event =
SyntheticWebMouseEventBuilder::Build(blink::WebInputEvent::MouseUp,
params_.position.x(),
params_.position.y(),
0);
mouse_event.clickCount = 1;
mouse_event.timeStampSeconds = ConvertTimestampToSeconds(timestamp);
target->DispatchInputEventToPlatform(mouse_event);
} else {
NOTREACHED() << "Invalid gesture source type for synthetic tap gesture.";
}
}
base::TimeDelta SyntheticTapGesture::GetDuration() const {
return base::TimeDelta::FromMilliseconds(params_.duration_ms);
}
} // namespace content
|
