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 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_AURA_H_
#define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_AURA_H_
#include "content/browser/renderer_host/input/synthetic_gesture_target_base.h"
#include "content/browser/renderer_host/render_widget_host_view_aura.h"
#include "content/common/input/synthetic_gesture_params.h"
#include "ui/aura/event_injector.h"
#include "ui/compositor/host_begin_frame_observer.h"
namespace aura {
class Window;
} // namespace aura
namespace content {
// SyntheticGestureTarget implementation for aura
class SyntheticGestureTargetAura
: public SyntheticGestureTargetBase,
public ui::HostBeginFrameObserver::SimpleBeginFrameObserver {
public:
explicit SyntheticGestureTargetAura(RenderWidgetHostImpl* host);
SyntheticGestureTargetAura(const SyntheticGestureTargetAura&) = delete;
~SyntheticGestureTargetAura() override;
SyntheticGestureTargetAura& operator=(const SyntheticGestureTargetAura&) =
delete;
// SyntheticGestureTargetBase:
void DispatchWebTouchEventToPlatform(
const blink::WebTouchEvent& web_touch,
const ui::LatencyInfo& latency_info) override;
void DispatchWebMouseWheelEventToPlatform(
const blink::WebMouseWheelEvent& web_wheel,
const ui::LatencyInfo& latency_info) override;
void DispatchWebGestureEventToPlatform(
const blink::WebGestureEvent& web_gesture,
const ui::LatencyInfo& latency_info) override;
void DispatchWebMouseEventToPlatform(
const blink::WebMouseEvent& web_mouse,
const ui::LatencyInfo& latency_info) override;
// SyntheticGestureTarget:
content::mojom::GestureSourceType GetDefaultSyntheticGestureSourceType()
const override;
void GetVSyncParameters(base::TimeTicks& timebase,
base::TimeDelta& interval) const override;
float GetTouchSlopInDips() const override;
float GetSpanSlopInDips() const override;
float GetMinScalingSpanInDips() const override;
private:
// ui::HostBeginFrameObserver::SimpleBeginFrameObserver:
void OnBeginFrame(
base::TimeTicks frame_begin_time,
base::TimeDelta frame_interval,
std::optional<base::TimeTicks> first_coalesced_frame_begin_time) override;
void OnBeginFrameSourceShuttingDown() override;
RenderWidgetHostViewAura* GetView() const;
aura::Window* GetWindow() const;
// Synthetic located event's location and touch event's radius are in DIP and
// aura event dispatcher assumes input event is in device pixel and will apply
// device scale factor to convert the input to DIP. So we need to use
// device_scale_factor to convert the input event from DIP to device pixel
// before dispatching it into platform.
float device_scale_factor_;
float wheel_precision_x_ = 0.f;
float wheel_precision_y_ = 0.f;
aura::EventInjector event_injector_;
base::TimeTicks vsync_timebase_;
base::TimeDelta vsync_interval_{base::Microseconds(16667)};
raw_ptr<ui::Compositor> observed_compositor_;
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_AURA_H_
|
