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Side by Side Diff: content/renderer/mus/compositor_mus_connection.h

Issue 2651593002: mus: Remove the old client lib. (Closed)
Patch Set: restore test Created 3 years, 11 months ago
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1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef CONTENT_RENDERER_MUS_COMPOSITOR_MUS_CONNECTION_H_
6 #define CONTENT_RENDERER_MUS_COMPOSITOR_MUS_CONNECTION_H_
7
8 #include <memory>
9
10 #include "base/bind.h"
11 #include "base/compiler_specific.h"
12 #include "base/macros.h"
13 #include "base/synchronization/lock.h"
14 #include "content/common/content_export.h"
15 #include "content/common/input/input_event_ack_state.h"
16 #include "services/ui/public/cpp/input_event_handler.h"
17 #include "services/ui/public/cpp/window.h"
18 #include "services/ui/public/cpp/window_tree_client.h"
19 #include "services/ui/public/cpp/window_tree_client_delegate.h"
20 #include "third_party/WebKit/public/platform/WebCoalescedInputEvent.h"
21 #include "ui/events/gestures/motion_event_aura.h"
22
23 namespace ui {
24 struct DidOverscrollParams;
25 }
26
27 namespace content {
28
29 class InputHandlerManager;
30
31 // CompositorMusConnection manages the connection to the Mandoline UI Service
32 // (Mus) on the compositor thread. For operations that need to happen on the
33 // main thread, CompositorMusConnection deals with passing information across
34 // threads. CompositorMusConnection is constructed on the main thread. By
35 // default all other methods are assumed to run on the compositor thread unless
36 // explicited suffixed with OnMainThread.
37 class CONTENT_EXPORT CompositorMusConnection
38 : NON_EXPORTED_BASE(public ui::WindowTreeClientDelegate),
39 NON_EXPORTED_BASE(public ui::InputEventHandler),
40 public base::RefCountedThreadSafe<CompositorMusConnection> {
41 public:
42 // Created on main thread.
43 CompositorMusConnection(
44 int routing_id,
45 const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner,
46 const scoped_refptr<base::SingleThreadTaskRunner>& compositor_task_runner,
47 mojo::InterfaceRequest<ui::mojom::WindowTreeClient> request,
48 InputHandlerManager* input_handler_manager);
49
50 // Attaches the provided |compositor_frame_sink_binding| with the ui::Window
51 // for the renderer once it becomes available.
52 void AttachCompositorFrameSinkOnMainThread(
53 std::unique_ptr<ui::WindowCompositorFrameSinkBinding>
54 compositor_frame_sink_binding);
55
56 private:
57 friend class CompositorMusConnectionTest;
58 friend class base::RefCountedThreadSafe<CompositorMusConnection>;
59
60 ~CompositorMusConnection() override;
61
62 void AttachCompositorFrameSinkOnCompositorThread(
63 std::unique_ptr<ui::WindowCompositorFrameSinkBinding>
64 compositor_frame_sink_binding);
65
66 void CreateWindowTreeClientOnCompositorThread(
67 ui::mojom::WindowTreeClientRequest request);
68
69 void OnConnectionLostOnMainThread();
70
71 void OnWindowInputEventOnMainThread(
72 blink::WebScopedInputEvent web_event,
73 const base::Callback<void(ui::mojom::EventResult)>& ack);
74
75 void OnWindowInputEventAckOnMainThread(
76 const base::Callback<void(ui::mojom::EventResult)>& ack,
77 ui::mojom::EventResult result);
78
79 std::unique_ptr<blink::WebInputEvent> Convert(const ui::Event& event);
80
81 void DeleteWindowTreeClient();
82
83 // WindowTreeClientDelegate implementation:
84 void OnEmbed(ui::Window* root) override;
85 void OnEmbedRootDestroyed(ui::Window* root) override;
86 void OnLostConnection(ui::WindowTreeClient* client) override;
87 void OnPointerEventObserved(const ui::PointerEvent& event,
88 ui::Window* target) override;
89
90 // InputEventHandler implementation:
91 void OnWindowInputEvent(
92 ui::Window* window,
93 const ui::Event& event,
94 std::unique_ptr<base::Callback<void(ui::mojom::EventResult)>>*
95 ack_callback) override;
96 void DidHandleWindowInputEventAndOverscroll(
97 std::unique_ptr<base::Callback<void(ui::mojom::EventResult)>>
98 ack_callback,
99 InputEventAckState ack_state,
100 blink::WebScopedInputEvent web_event,
101 const ui::LatencyInfo& latency_info,
102 std::unique_ptr<ui::DidOverscrollParams> overscroll_params);
103
104 const int routing_id_;
105 // Use this lock when accessing |window_tree_client_|. Lock exists solely for
106 // DCHECK in destructor.
107 base::Lock window_tree_client_lock_;
108 std::unique_ptr<ui::WindowTreeClient> window_tree_client_;
109 ui::Window* root_;
110 scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
111 scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_;
112 InputHandlerManager* const input_handler_manager_;
113 std::unique_ptr<ui::WindowCompositorFrameSinkBinding>
114 window_compositor_frame_sink_binding_;
115
116 // Stores the current state of the active pointers targeting this object.
117 ui::MotionEventAura pointer_state_;
118
119 DISALLOW_COPY_AND_ASSIGN(CompositorMusConnection);
120 };
121
122 } // namespace content
123
124 #endif // CONTENT_RENDERER_MUS_COMPOSITOR_MUS_CONNECTION_H_
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