SyntheticGestureTarget implementation for injecting synthetic input events

content/browser/renderer_host/input/synthetic_gesture_target_base.h

+// 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_BASE_H_
+#define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_BASE_H_
+
+#include "base/time/time.h"
+#include "content/browser/renderer_host/input/synthetic_gesture_target.h"
+
+namespace ui {
+struct LatencyInfo;
+}
+
+namespace WebKit {
+class WebTouchEvent;
+class WebMouseEvent;
+class WebMouseWheelEvent;
+}
+
+namespace content {
+
+class RenderWidgetHostImpl;
+
+class SyntheticGestureTargetBase : public SyntheticGestureTarget {
+ public:
+  explicit SyntheticGestureTargetBase(RenderWidgetHostImpl* host);
+  ~SyntheticGestureTargetBase();
+
+  virtual void QueueWebTouchEventToPlatform(
+      const WebKit::WebTouchEvent& web_touch,
+      const ui::LatencyInfo& latency_info);
+
+  virtual void QueueWebMouseWheelEventToPlatform(
+      const WebKit::WebMouseWheelEvent& web_wheel,
+      const ui::LatencyInfo& latency_info);
+
+  virtual void QueueWebMouseEventToPlatform(
+      const WebKit::WebMouseEvent& web_mouse,
+      const ui::LatencyInfo& latency_info);
+
+  // SyntheticGestureTarget:
+  virtual void QueueInputEventToPlatform(const InputEvent& event) OVERRIDE;
+
+  virtual void OnSyntheticGestureCompleted(
+      SyntheticGestureNew::Result result) OVERRIDE;
+
+  virtual base::TimeDelta GetSyntheticGestureUpdateRate() const OVERRIDE;
+
+  virtual SyntheticGestureParams::GestureSourceType
+      GetDefaultSyntheticGestureSourceType() const OVERRIDE;

[sadrul, 2013/11/04 19:26:42]

Please document these methods in the interface.

[Dominik Grewe, 2013/11/05 10:32:48]

Is it okay if we did this in a follow-up CL? We'll be making some minor changes
to that interface anyway.

[sadrul, 2013/11/05 17:53:25]

Sure.

+  virtual bool SupportsSyntheticGestureSourceType(
+      SyntheticGestureParams::GestureSourceType gesture_source_type) const
+      OVERRIDE;
+
+ protected:
+  RenderWidgetHostImpl* render_widget_host() { return host_; }
+
+ private:
+  RenderWidgetHostImpl* host_;
+
+  DISALLOW_COPY_AND_ASSIGN(SyntheticGestureTargetBase);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_GESTURE_TARGET_BASE_H_