[Tracking Patch] Unified gesture detection

content/browser/renderer_host/input/content_motion_event_impl.h

+// Copyright 2014 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_CONTENT_MOTION_EVENT_IMPL_H_
+#define CONTENT_BROWSER_RENDERER_HOST_INPUT_CONTENT_MOTION_EVENT_IMPL_H_
+
+#include "content/browser/renderer_host/input/native_web_touch_event.h"
+#include "ui/events/gesture_detection/motion_event.h"
+
+namespace content {
+
+// Content implementation of ui::MotionEvent.
+class ContentMotionEventImpl : public ui::MotionEvent {
+ public:
+#if defined(OS_ANDROID)
+  ContentMotionEventImpl(jobject android_motion_event,
+                         bool should_recycle,
+                         float device_scale_factor);
+#endif
+  explicit ContentMotionEventImpl(const NativeWebTouchEvent& event);
+  virtual ~ContentMotionEventImpl();
+
+  // ui::MotionEvent
+  virtual Action GetAction() const OVERRIDE;
+  virtual int GetActionIndex() const OVERRIDE;
+  virtual size_t GetPointerCount() const OVERRIDE;
+  virtual int GetPointerId(size_t pointer_index) const OVERRIDE;
+  virtual float GetX(size_t pointer_index) const OVERRIDE;
+  virtual float GetY(size_t pointer_index) const OVERRIDE;
+  virtual float GetTouchMajor(size_t pointer_index) const OVERRIDE;
+  virtual base::TimeTicks GetEventTime() const OVERRIDE;
+  virtual size_t GetHistorySize() const OVERRIDE;
+  virtual base::TimeTicks GetHistoricalEventTime(
+      size_t historical_index) const OVERRIDE;
+  virtual float GetHistoricalTouchMajor(
+      size_t pointer_index,
+      size_t historical_index) const OVERRIDE;
+  virtual float GetHistoricalX(
+      size_t pointer_index,
+      size_t historical_index) const OVERRIDE;
+  virtual float GetHistoricalY(
+      size_t pointer_index,
+      size_t historical_index) const OVERRIDE;
+  virtual scoped_ptr<MotionEvent> Clone() const OVERRIDE;
+  virtual scoped_ptr<MotionEvent> Cancel() const OVERRIDE;
+
+ private:
+  NativeWebTouchEvent event_;
+  Action cached_action_;
+  int cached_action_index_;
+
+  DISALLOW_COPY_AND_ASSIGN(ContentMotionEventImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_CONTENT_MOTION_EVENT_IMPL_H_