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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 CONTENT_BROWSER_RENDERER_HOST_INPUT_INPUT_ROUTER_CLIENT_H_ | 5 #ifndef CONTENT_BROWSER_RENDERER_HOST_INPUT_INPUT_ROUTER_CLIENT_H_ |
6 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_INPUT_ROUTER_CLIENT_H_ | 6 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_INPUT_ROUTER_CLIENT_H_ |
7 | 7 |
8 #include "content/browser/renderer_host/event_with_latency_info.h" | 8 #include "content/browser/renderer_host/event_with_latency_info.h" |
9 #include "content/common/content_export.h" | 9 #include "content/common/content_export.h" |
10 #include "content/common/input/input_event_ack_state.h" | 10 #include "content/common/input/input_event_ack_state.h" |
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26 // Called just prior to events being sent to the renderer, giving the client | 26 // Called just prior to events being sent to the renderer, giving the client |
27 // a chance to perform in-process event filtering. | 27 // a chance to perform in-process event filtering. |
28 // The returned disposition will yield the following behavior: | 28 // The returned disposition will yield the following behavior: |
29 // * |NOT_CONSUMED| will result in |input_event| being sent as usual. | 29 // * |NOT_CONSUMED| will result in |input_event| being sent as usual. |
30 // * |CONSUMED| or |NO_CONSUMER_EXISTS| will trigger the appropriate ack. | 30 // * |CONSUMED| or |NO_CONSUMER_EXISTS| will trigger the appropriate ack. |
31 // * |UNKNOWN| will result in |input_event| being dropped. | 31 // * |UNKNOWN| will result in |input_event| being dropped. |
32 virtual InputEventAckState FilterInputEvent( | 32 virtual InputEventAckState FilterInputEvent( |
33 const blink::WebInputEvent& input_event, | 33 const blink::WebInputEvent& input_event, |
34 const ui::LatencyInfo& latency_info) = 0; | 34 const ui::LatencyInfo& latency_info) = 0; |
35 | 35 |
36 // Called each time a WebInputEvent IPC is sent. | 36 // Called each time a WebInputEvent IPC that expects an ACK is sent. |
37 virtual void IncrementInFlightEventCount() = 0; | 37 virtual void IncrementInFlightEventCount() = 0; |
38 | 38 |
39 // Called each time a WebInputEvent ACK IPC is received. | 39 // Called each time a WebInputEvent ACK IPC is received. |
40 virtual void DecrementInFlightEventCount() = 0; | 40 virtual void DecrementInFlightEventCount() = 0; |
41 | 41 |
42 // Called when the renderer notifies that it has touch event handlers. | 42 // Called when the renderer notifies that it has touch event handlers. |
43 virtual void OnHasTouchEventHandlers(bool has_handlers) = 0; | 43 virtual void OnHasTouchEventHandlers(bool has_handlers) = 0; |
44 | 44 |
45 // Called when the router has finished flushing all events queued at the time | 45 // Called when the InputRouter requires a frame-aligned flush signal to |
46 // of the call to Flush. The call will typically be asynchronous with | 46 // forward pending input. |
47 // respect to the call to |Flush| on the InputRouter. | 47 virtual void SetNeedsFlushInput() = 0; |
48 virtual void DidFlush() = 0; | 48 |
| 49 // Called when the router has finished processing all queued events, both |
| 50 // those awaiting dispatch and those currently in-flight. |
| 51 virtual void DidFlushAllInput() = 0; |
49 | 52 |
50 // Called when the router has received an overscroll notification from the | 53 // Called when the router has received an overscroll notification from the |
51 // renderer. | 54 // renderer. |
52 virtual void DidOverscroll(const DidOverscrollParams& params) = 0; | 55 virtual void DidOverscroll(const DidOverscrollParams& params) = 0; |
53 | 56 |
54 // Called when a renderer fling has terminated. | 57 // Called when a renderer fling has terminated. |
55 virtual void DidStopFlinging() = 0; | 58 virtual void DidStopFlinging() = 0; |
56 }; | 59 }; |
57 | 60 |
58 } // namespace content | 61 } // namespace content |
59 | 62 |
60 #endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_INPUT_ROUTER_CLIENT_H_ | 63 #endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_INPUT_ROUTER_CLIENT_H_ |
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