text: // 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;
  
    // Check if a particular gesture type is supported by the target.
    virtual bool SupportsSyntheticGestureSourceType(
        SyntheticGestureParams::GestureSourceType gesture_source_type) 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 int GetTouchSlopInDips() const = 0;
  };
  
  }  // namespace content
  
  #endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_H_
  