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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/input/android/input_receiver_data.h"
#include <utility>
#include "base/android/android_info.h"
namespace input {
namespace {
// Time limit at which InputReceiver is destroyed without waiting
// for complete of touch sequence to arrive from Viz.
const base::TimeDelta kTimeToWaitForLastEvent = base::Seconds(2);
// Time limit used to say we are probably not going to get any
// more events from system, and if an input receiver destruction
// timer has fired let's indeed destroy it.
const base::TimeDelta kInactiveSequenceThreshold = base::Seconds(1);
} // namespace
InputReceiverData::InputReceiverData(
scoped_refptr<gfx::SurfaceControl::Surface> parent_input_sc,
scoped_refptr<gfx::SurfaceControl::Surface> input_sc,
ScopedInputTransferToken browser_input_token,
std::unique_ptr<AndroidInputCallback> android_input_callback,
ScopedInputReceiverCallbacks callbacks,
ScopedInputReceiver receiver,
ScopedInputTransferToken viz_input_token)
: parent_input_sc_(parent_input_sc),
input_sc_(input_sc),
browser_input_token_(std::move(browser_input_token)),
android_input_callback_(std::move(android_input_callback)),
callbacks_(std::move(callbacks)),
receiver_(std::move(receiver)),
viz_input_token_(std::move(viz_input_token)) {
android_input_callback_->AddObserver(this);
}
InputReceiverData::~InputReceiverData() {
android_input_callback_->RemoveObserver(this);
}
void InputReceiverData::OnMotionEvent(
const base::android::ScopedInputEvent& input_event) {
const int action = AMotionEvent_getAction(input_event.a_input_event()) &
AMOTION_EVENT_ACTION_MASK;
last_motion_event_action_ = action;
last_motion_event_ts_ = base::TimeTicks::Now();
}
void InputReceiverData::TryDestroySelf(
std::unique_ptr<InputReceiverData> receiver_data) {
CHECK(receiver_data);
const base::TimeDelta time_since_last_motion_event =
base::TimeTicks::Now() - last_motion_event_ts_;
if (last_motion_event_action_ == AMOTION_EVENT_ACTION_CANCEL ||
last_motion_event_action_ == AMOTION_EVENT_ACTION_UP ||
time_since_last_motion_event > kInactiveSequenceThreshold) {
// InputReceiverData gets destroyed here.
return;
}
base::SingleThreadTaskRunner::GetCurrentDefault()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&InputReceiverData::TryDestroySelf,
base::Unretained(receiver_data.get()),
std::move(receiver_data)),
kTimeToWaitForLastEvent);
}
void InputReceiverData::OnDestroyedCompositorFrameSink(
std::unique_ptr<InputReceiverData> receiver) {
if (base::android::android_info::sdk_int() >=
base::android::android_info::SdkVersion::SDK_VERSION_BAKLAVA) {
// For Android 16+ where input receiver could be destroyed, `receiver` would
// have non-nullptr in it, which should be cleanup eventually after seeing
// the full touch sequence or after giving up upon new input events to come.
CHECK_EQ(receiver.get(), this);
const base::TimeDelta time_since_last_motion_event =
base::TimeTicks::Now() - last_motion_event_ts_;
if (time_since_last_motion_event > kInactiveSequenceThreshold ||
(last_motion_event_action_ == AMOTION_EVENT_ACTION_CANCEL ||
last_motion_event_action_ == AMOTION_EVENT_ACTION_UP)) {
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, base::BindOnce(
[](std::unique_ptr<InputReceiverData>) {
// InputReceiverData gets destroyed here.
},
std::move(receiver)));
} else {
base::SingleThreadTaskRunner::GetCurrentDefault()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&InputReceiverData::TryDestroySelf,
base::Unretained(receiver.get()), std::move(receiver)),
kTimeToWaitForLastEvent);
}
return;
}
CHECK(!receiver);
pending_destruction_ = true;
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, base::BindOnce(&InputReceiverData::DetachInputSurface,
weak_ptr_factory_.GetWeakPtr()));
}
void InputReceiverData::AttachToFrameSink(
const viz::FrameSinkId& root_frame_sink_id,
scoped_refptr<gfx::SurfaceControl::Surface> parent_input_sc) {
DCHECK(!android_input_callback_->root_frame_sink_id().is_valid());
// In case a new root compositor frame sink gets created before
// DetachInputSurface had a chance to run. In this case DetachInputSurface
// shouldn't do anything in the pending detach task.
pending_destruction_ = false;
parent_input_sc_ = parent_input_sc;
gfx::SurfaceControl::Transaction transaction;
transaction.SetParent(*input_sc_, parent_input_sc_.get());
transaction.Apply();
android_input_callback_->set_root_frame_sink_id(root_frame_sink_id);
}
void InputReceiverData::DetachInputSurface() {
if (!pending_destruction_) {
return;
}
pending_destruction_ = false;
gfx::SurfaceControl::Transaction transaction;
transaction.SetParent(*input_sc_, nullptr);
transaction.Apply();
parent_input_sc_.reset();
android_input_callback_->set_root_frame_sink_id(viz::FrameSinkId());
}
} // namespace input
|
