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// 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 WEBKIT_PLUGINS_PPAPI_PPB_SCROLLBAR_IMPL_H_
#define WEBKIT_PLUGINS_PPAPI_PPB_SCROLLBAR_IMPL_H_
#include <vector>
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "ppapi/thunk/ppb_scrollbar_api.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebRect.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebPluginScrollbarClient.h"
#include "ui/gfx/rect.h"
#include "webkit/plugins/ppapi/ppb_widget_impl.h"
namespace webkit {
namespace ppapi {
class PPB_Scrollbar_Impl : public PPB_Widget_Impl,
public ::ppapi::thunk::PPB_Scrollbar_API,
public WebKit::WebPluginScrollbarClient {
public:
static PP_Resource Create(PP_Instance instance, bool vertical);
virtual ~PPB_Scrollbar_Impl();
// Resource overrides.
virtual PPB_Scrollbar_API* AsPPB_Scrollbar_API() OVERRIDE;
virtual void InstanceWasDeleted();
// PPB_Scrollbar_API implementation.
virtual uint32_t GetThickness() OVERRIDE;
virtual bool IsOverlay() OVERRIDE;
virtual uint32_t GetValue() OVERRIDE;
virtual void SetValue(uint32_t value) OVERRIDE;
virtual void SetDocumentSize(uint32_t size) OVERRIDE;
virtual void SetTickMarks(const PP_Rect* tick_marks, uint32_t count) OVERRIDE;
virtual void ScrollBy(PP_ScrollBy_Dev unit, int32_t multiplier) OVERRIDE;
private:
explicit PPB_Scrollbar_Impl(PP_Instance instance);
void Init(bool vertical);
// PPB_Widget private implementation.
virtual PP_Bool PaintInternal(const gfx::Rect& rect,
PPB_ImageData_Impl* image) OVERRIDE;
virtual PP_Bool HandleEventInternal(
const ::ppapi::InputEventData& data) OVERRIDE;
virtual void SetLocationInternal(const PP_Rect* location) OVERRIDE;
// WebKit::WebPluginScrollbarClient implementation.
virtual void valueChanged(WebKit::WebPluginScrollbar* scrollbar) OVERRIDE;
virtual void overlayChanged(WebKit::WebPluginScrollbar* scrollbar) OVERRIDE;
virtual void invalidateScrollbarRect(WebKit::WebPluginScrollbar* scrollbar,
const WebKit::WebRect& rect) OVERRIDE;
virtual void getTickmarks(
WebKit::WebPluginScrollbar* scrollbar,
WebKit::WebVector<WebKit::WebRect>* tick_marks) const OVERRIDE;
void NotifyInvalidate();
gfx::Rect dirty_;
std::vector<WebKit::WebRect> tickmarks_;
scoped_ptr<WebKit::WebPluginScrollbar> scrollbar_;
// Used so that the post task for Invalidate doesn't keep an extra reference.
base::WeakPtrFactory<PPB_Scrollbar_Impl> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(PPB_Scrollbar_Impl);
};
} // namespace ppapi
} // namespace webkit
#endif // WEBKIT_PLUGINS_PPAPI_PPB_SCROLLBAR_IMPL_H_
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