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Side by Side Diff: ui/events/blink/input_handler_proxy_client.h

Issue 2576013002: Introducing WebCoalescedInputEvent and inclusion in content/common (Closed)
Patch Set: Fix a few DCHECK hits Created 3 years, 11 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef UI_EVENTS_BLINK_INPUT_HANDLER_PROXY_CLIENT_H_ 5 #ifndef UI_EVENTS_BLINK_INPUT_HANDLER_PROXY_CLIENT_H_
6 #define UI_EVENTS_BLINK_INPUT_HANDLER_PROXY_CLIENT_H_ 6 #define UI_EVENTS_BLINK_INPUT_HANDLER_PROXY_CLIENT_H_
7 7
8 #include "ui/events/blink/scoped_web_input_event.h" 8 #include "third_party/WebKit/public/platform/WebCoalescedInputEvent.h"
9 9
10 namespace blink { 10 namespace blink {
11 class WebGestureCurve; 11 class WebGestureCurve;
12 struct WebActiveWheelFlingParameters; 12 struct WebActiveWheelFlingParameters;
13 struct WebFloatPoint; 13 struct WebFloatPoint;
14 struct WebSize; 14 struct WebSize;
15 } 15 }
16 16
17 namespace ui { 17 namespace ui {
18 18
19 // All callbacks invoked from the compositor thread. 19 // All callbacks invoked from the compositor thread.
20 class InputHandlerProxyClient { 20 class InputHandlerProxyClient {
21 public: 21 public:
22 // Called just before the InputHandlerProxy shuts down. 22 // Called just before the InputHandlerProxy shuts down.
23 virtual void WillShutdown() = 0; 23 virtual void WillShutdown() = 0;
24 24
25 // Transfers an active wheel fling animation initiated by a previously 25 // Transfers an active wheel fling animation initiated by a previously
26 // handled input event out to the client. 26 // handled input event out to the client.
27 virtual void TransferActiveWheelFlingAnimation( 27 virtual void TransferActiveWheelFlingAnimation(
28 const blink::WebActiveWheelFlingParameters& params) = 0; 28 const blink::WebActiveWheelFlingParameters& params) = 0;
29 29
30 // Dispatch a non blocking event to the main thread. This is used when a 30 // Dispatch a non blocking event to the main thread. This is used when a
31 // gesture fling from a touchpad is processed and the target only has 31 // gesture fling from a touchpad is processed and the target only has
32 // passive event listeners. If the target has blocking event listeners 32 // passive event listeners. If the target has blocking event listeners
33 // |TransferActiveWheelFlingAnimation| will be used instead. 33 // |TransferActiveWheelFlingAnimation| will be used instead.
34 virtual void DispatchNonBlockingEventToMainThread( 34 virtual void DispatchNonBlockingEventToMainThread(
35 ui::ScopedWebInputEvent event, 35 blink::WebScopedInputEvent event,
36 const ui::LatencyInfo& latency_info) = 0; 36 const ui::LatencyInfo& latency_info) = 0;
37 37
38 // Creates a new fling animation curve instance for device |device_source| 38 // Creates a new fling animation curve instance for device |device_source|
39 // with |velocity| and already scrolled |cumulative_scroll| pixels. 39 // with |velocity| and already scrolled |cumulative_scroll| pixels.
40 virtual blink::WebGestureCurve* CreateFlingAnimationCurve( 40 virtual blink::WebGestureCurve* CreateFlingAnimationCurve(
41 blink::WebGestureDevice device_source, 41 blink::WebGestureDevice device_source,
42 const blink::WebFloatPoint& velocity, 42 const blink::WebFloatPoint& velocity,
43 const blink::WebSize& cumulative_scroll) = 0; 43 const blink::WebSize& cumulative_scroll) = 0;
44 44
45 // |HandleInputEvent/WithLatencyInfo| will respond to overscroll by calling 45 // |HandleInputEvent/WithLatencyInfo| will respond to overscroll by calling
46 // the passed in callback. 46 // the passed in callback.
47 // Otherwise |DidOverscroll| will be fired. 47 // Otherwise |DidOverscroll| will be fired.
48 virtual void DidOverscroll( 48 virtual void DidOverscroll(
49 const gfx::Vector2dF& accumulated_overscroll, 49 const gfx::Vector2dF& accumulated_overscroll,
50 const gfx::Vector2dF& latest_overscroll_delta, 50 const gfx::Vector2dF& latest_overscroll_delta,
51 const gfx::Vector2dF& current_fling_velocity, 51 const gfx::Vector2dF& current_fling_velocity,
52 const gfx::PointF& causal_event_viewport_point) = 0; 52 const gfx::PointF& causal_event_viewport_point) = 0;
53 53
54 virtual void DidStopFlinging() = 0; 54 virtual void DidStopFlinging() = 0;
55 55
56 virtual void DidAnimateForInput() = 0; 56 virtual void DidAnimateForInput() = 0;
57 57
58 protected: 58 protected:
59 virtual ~InputHandlerProxyClient() {} 59 virtual ~InputHandlerProxyClient() {}
60 }; 60 };
61 61
62 } // namespace ui 62 } // namespace ui
63 63
64 #endif // UI_EVENTS_BLINK_INPUT_HANDLER_PROXY_CLIENT_H_ 64 #endif // UI_EVENTS_BLINK_INPUT_HANDLER_PROXY_CLIENT_H_
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