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
|
// Copyright 2025 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_MOJO_RENDER_INPUT_ROUTER_DELEGATE_IMPL_H_
#define CONTENT_BROWSER_RENDERER_HOST_MOJO_RENDER_INPUT_ROUTER_DELEGATE_IMPL_H_
#include <memory>
#include "base/memory/scoped_refptr.h"
#include "components/input/render_input_router.mojom.h"
#include "mojo/public/cpp/bindings/associated_receiver.h"
#include "mojo/public/cpp/bindings/associated_remote.h"
#include "third_party/blink/public/common/input/web_coalesced_input_event.h"
#include "third_party/blink/public/mojom/input/input_event_result.mojom-shared.h"
namespace content {
class RenderWidgetHostImpl;
// This class is owned by RenderWidgetHostImpl and its lifetime is directly tied
// to the RenderWidgetHostImpl instance that creates it. This class encapsulates
// the mojo-specific communication logic for syncing input handling related
// state, acting as an intermediary between the RenderWidgetHostImpl (on the
// CrBrowserMain thread) and the InputManager (on the VizCompositorThread). See
// mojo interfaces `RenderInputRouterDelegate` and
// `RenderInputRouterDelegateClient` for relevant state syncing methods.
class MojoRenderInputRouterDelegateImpl
: public input::mojom::RenderInputRouterDelegateClient {
public:
explicit MojoRenderInputRouterDelegateImpl(RenderWidgetHostImpl* host);
~MojoRenderInputRouterDelegateImpl() override;
// Sets up RenderInputRouterDelegate mojo connections with InputManager on
// the VizCompositorThread for input handling with InputVizard.
void SetupRenderInputRouterDelegateConnection();
// Get remote for making calls to RenderInputRouterDelegate interface. Returns
// nullptr if the remote is not bound yet. The mojo connection is setup when
// layer tree frame sinks from renderer are being requested (see
// RenderWidgetHostImpl::CreateFrameSink). This connection is setup before
// input handling starts on VizCompositorThread for its corresponding
// `frame_sink_id`.
input::mojom::RenderInputRouterDelegate* GetRenderInputRouterDelegateRemote();
// input::mojom::RenderInputRouterDelegateClient overrides.
void NotifyObserversOfInputEvent(
std::unique_ptr<blink::WebCoalescedInputEvent> event,
bool dispatched_to_renderer) override;
void NotifyObserversOfInputEventAcks(
blink::mojom::InputEventResultSource ack_source,
blink::mojom::InputEventResultState ack_result,
std::unique_ptr<blink::WebCoalescedInputEvent> event) override;
void OnInvalidInputEventSource() override;
void StateOnOverscrollTransfer(
blink::mojom::DidOverscrollParamsPtr params) override;
void RendererInputResponsivenessChanged(
bool is_responsive,
std::optional<base::TimeTicks> ack_timeout_ts) override;
void SetRenderInputRouterDelegateRemoteForTesting(
mojo::PendingAssociatedRemote<input::mojom::RenderInputRouterDelegate>
remote) {
rir_delegate_remote_.Bind(std::move(remote));
}
private:
mojo::AssociatedReceiver<input::mojom::RenderInputRouterDelegateClient>
rir_delegate_client_receiver_{this};
mojo::AssociatedRemote<input::mojom::RenderInputRouterDelegate>
rir_delegate_remote_;
// It is safe to use `raw_ref` here since RenderWidgetHostImpl owns this class
// and is bound to outlive |this|.
raw_ref<RenderWidgetHostImpl> host_;
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_MOJO_RENDER_INPUT_ROUTER_DELEGATE_IMPL_H_
|
