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
|
// 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.
#ifndef CONTENT_RENDERER_INPUT_INPUT_HANDLER_MANAGER_H_
#define CONTENT_RENDERER_INPUT_INPUT_HANDLER_MANAGER_H_
#include "base/containers/scoped_ptr_hash_map.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "content/common/input/input_event_ack_state.h"
#include "content/renderer/render_view_impl.h"
namespace base {
class MessageLoopProxy;
}
namespace cc {
class InputHandler;
struct InputHandlerScrollResult;
}
namespace blink {
class WebInputEvent;
class WebMouseWheelEvent;
}
namespace content {
class InputHandlerWrapper;
class InputHandlerManagerClient;
struct DidOverscrollParams;
class RendererScheduler;
// InputHandlerManager class manages InputHandlerProxy instances for
// the WebViews in this renderer.
class InputHandlerManager {
public:
// |message_loop_proxy| is the MessageLoopProxy of the compositor thread. The
// underlying MessageLoop and supplied |client| and the |renderer_scheduler|
// must outlive this object. The RendererScheduler needs to know when input
// events and fling animations occur, which is why it's passed in here.
InputHandlerManager(
const scoped_refptr<base::MessageLoopProxy>& message_loop_proxy,
InputHandlerManagerClient* client,
RendererScheduler* renderer_scheduler);
~InputHandlerManager();
// Callable from the main thread only.
void AddInputHandler(
int routing_id,
const base::WeakPtr<cc::InputHandler>& input_handler,
const base::WeakPtr<RenderViewImpl>& render_view_impl);
void ObserveWheelEventAndResultOnMainThread(
int routing_id,
const blink::WebMouseWheelEvent& wheel_event,
const cc::InputHandlerScrollResult& scroll_result);
// Callback only from the compositor's thread.
void RemoveInputHandler(int routing_id);
// Called from the compositor's thread.
InputEventAckState HandleInputEvent(int routing_id,
const blink::WebInputEvent* input_event,
ui::LatencyInfo* latency_info);
// Called from the compositor's thread.
void DidOverscroll(int routing_id, const DidOverscrollParams& params);
// Called from the compositor's thread.
void DidStopFlinging(int routing_id);
// Called from the compositor's thread.
void DidReceiveInputEvent(blink::WebInputEvent::Type type);
// Called from the compositor's thread.
void DidAnimateForInput();
private:
// Called from the compositor's thread.
void AddInputHandlerOnCompositorThread(
int routing_id,
const scoped_refptr<base::MessageLoopProxy>& main_loop,
const base::WeakPtr<cc::InputHandler>& input_handler,
const base::WeakPtr<RenderViewImpl>& render_view_impl);
void ObserveWheelEventAndResultOnCompositorThread(
int routing_id,
const blink::WebMouseWheelEvent& wheel_event,
const cc::InputHandlerScrollResult& scroll_result);
typedef base::ScopedPtrHashMap<int, // routing_id
InputHandlerWrapper> InputHandlerMap;
InputHandlerMap input_handlers_;
scoped_refptr<base::MessageLoopProxy> message_loop_proxy_;
InputHandlerManagerClient* client_;
RendererScheduler* renderer_scheduler_; // Not owned.
};
} // namespace content
#endif // CONTENT_RENDERER_INPUT_INPUT_HANDLER_MANAGER_H_
|
