content/renderer/pepper/ppb_widget_impl.h

// Copyright (c) 2012 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_RENDERER_PEPPER_PPB_WIDGET_IMPL_H_
#define CONTENT_RENDERER_PEPPER_PPB_WIDGET_IMPL_H_

#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "ppapi/c/pp_rect.h"
#include "ppapi/shared_impl/resource.h"
#include "ppapi/thunk/ppb_widget_api.h"

namespace gfx {
class Rect;
}
namespace ppapi {
struct InputEventData;
}

namespace content {

class PPB_ImageData_Impl;

class PPB_Widget_Impl : public ppapi::Resource,
                        public ppapi::thunk::PPB_Widget_API {
 public:
  explicit PPB_Widget_Impl(PP_Instance instance);

  // Resource overrides.
  ppapi::thunk::PPB_Widget_API* AsPPB_Widget_API() override;

  // PPB_WidgetAPI implementation.
  PP_Bool Paint(const PP_Rect* rect, PP_Resource) override;
  PP_Bool HandleEvent(PP_Resource pp_input_event) override;
  PP_Bool GetLocation(PP_Rect* location) override;
  void SetLocation(const PP_Rect* location) override;
  void SetScale(float scale) override;

  // Notifies the plugin instance that the given rect needs to be repainted.
  void Invalidate(const PP_Rect* dirty);

 protected:
  ~PPB_Widget_Impl() override;

  virtual PP_Bool PaintInternal(const gfx::Rect& rect,
                                PPB_ImageData_Impl* image) = 0;
  virtual PP_Bool HandleEventInternal(const ppapi::InputEventData& data) = 0;
  virtual void SetLocationInternal(const PP_Rect* location) = 0;

  PP_Rect location() const { return location_; }
  float scale() const { return scale_; }

 private:
  PP_Rect location_;
  float scale_;

  DISALLOW_COPY_AND_ASSIGN(PPB_Widget_Impl);
};

}  // namespace content

#endif  // CONTENT_RENDERER_PEPPER_PPB_WIDGET_IMPL_H_