| // 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_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_H_ |
| #define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_H_ |
| |
| #include "base/time/time.h" |
| #include "content/browser/renderer_host/input/synthetic_gesture.h" |
| #include "content/common/content_export.h" |
| #include "content/common/input/synthetic_gesture_params.h" |
| |
| namespace blink { |
| class WebInputEvent; |
| } |
| |
| namespace content { |
| |
| // Interface between the synthetic gesture controller and the RenderWidgetHost. |
| class CONTENT_EXPORT SyntheticGestureTarget { |
| public: |
| SyntheticGestureTarget() {} |
| virtual ~SyntheticGestureTarget() {} |
| |
| // Allows synthetic gestures to insert input events in the highest level of |
| // input processing on the target platform (e.g. Java on Android), so that |
| // the event traverses the entire input processing stack. |
| virtual void DispatchInputEventToPlatform( |
| const blink::WebInputEvent& event) = 0; |
| |
| // Called by SyntheticGestureController to request a flush at a time |
| // appropriate for the platform, e.g. aligned with vsync. |
| virtual void SetNeedsFlush() = 0; |
| |
| // Returns the default gesture source type for the target. |
| virtual SyntheticGestureParams::GestureSourceType |
| GetDefaultSyntheticGestureSourceType() const = 0; |
| |
| // After how much time of inaction does the target assume that a pointer has |
| // stopped moving. |
| virtual base::TimeDelta PointerAssumedStoppedTime() const = 0; |
| |
| // Returns the maximum number of DIPs a touch pointer can move without being |
| // considered moving by the platform. |
| virtual float GetTouchSlopInDips() const = 0; |
| |
| // Returns the minimum number of DIPs two touch pointers have to be apart |
| // to perform a pinch-zoom. |
| virtual float GetMinScalingSpanInDips() const = 0; |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_H_ |