ui/events/gestures/blink/web_gesture_curve_impl.h

   1 // Copyright 2014 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 UI_EVENTS_GESTURES_BLINK_WEB_GESTURE_CURVE_IMPL_H_
   6 #define UI_EVENTS_GESTURES_BLINK_WEB_GESTURE_CURVE_IMPL_H_
   7
   8 #include "base/macros.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "third_party/WebKit/public/platform/WebGestureCurve.h"
  11 #include "ui/gfx/geometry/vector2d_f.h"
  12
  13 namespace blink {
  14 class WebGestureCurveTarget;
  15 }
  16
  17 namespace ui {
  18 class GestureCurve;
  19
  20 class WebGestureCurveImpl : public NON_EXPORTED_BASE(blink::WebGestureCurve) {
  21  public:
  22   static scoped_ptr<blink::WebGestureCurve> CreateFromDefaultPlatformCurve(
  23       const gfx::Vector2dF& initial_velocity,
  24       const gfx::Vector2dF& initial_offset,
  25       bool on_main_thread);
  26   static scoped_ptr<blink::WebGestureCurve> CreateFromUICurveForTesting(
  27       scoped_ptr<GestureCurve> curve,
  28       const gfx::Vector2dF& initial_offset);
  29
  30   virtual ~WebGestureCurveImpl();
  31
  32   // WebGestureCurve implementation.
  33   virtual bool apply(double time,
  34                      blink::WebGestureCurveTarget* target) override;
  35
  36  private:
  37   enum class ThreadType {
  38     MAIN,
  39     IMPL,
  40     TEST
  41   };
  42
  43   WebGestureCurveImpl(scoped_ptr<GestureCurve> curve,
  44                       const gfx::Vector2dF& initial_offset,
  45                       ThreadType animating_thread_type);
  46
  47   scoped_ptr<GestureCurve> curve_;
  48
  49   gfx::Vector2dF last_offset_;
  50
  51   ThreadType animating_thread_type_;
  52   int64 ticks_since_first_animate_;
  53   double first_animate_time_;
  54   double last_animate_time_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(WebGestureCurveImpl);
  57 };
  58
  59 }  // namespace ui
  60
  61 #endif  // UI_EVENTS_GESTURES_BLINK_WEB_GESTURE_CURVE_IMPL_H_