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// Copyright (c) 2010 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 CHROME_RENDERER_PEPPER_SCROLLBAR_WIDGET_H_
#define CHROME_RENDERER_PEPPER_SCROLLBAR_WIDGET_H_
#pragma once
#include <vector>
#include "base/ref_counted.h"
#include "base/scoped_ptr.h"
#include "build/build_config.h"
#include "gfx/point.h"
#include "gfx/rect.h"
#include "chrome/renderer/pepper_widget.h"
#include "third_party/WebKit/WebKit/chromium/public/WebRect.h"
#include "third_party/WebKit/WebKit/chromium/public/WebScrollbarClient.h"
// An implementation of a horizontal/vertical scrollbar.
class PepperScrollbarWidget : public PepperWidget,
public WebKit::WebScrollbarClient,
public base::RefCounted<PepperScrollbarWidget> {
public:
explicit PepperScrollbarWidget(const NPScrollbarCreateParams& params);
// PepperWidget
virtual void Destroy();
virtual void Paint(Graphics2DDeviceContext* context, const NPRect& dirty);
virtual bool HandleEvent(const NPPepperEvent& event);
virtual void GetProperty(NPWidgetProperty property, void* value);
virtual void SetProperty(NPWidgetProperty property, void* value);
// WebKit::WebScrollbarClient
virtual void valueChanged(WebKit::WebScrollbar*);
virtual void invalidateScrollbarRect(WebKit::WebScrollbar*,
const WebKit::WebRect&);
virtual void getTickmarks(WebKit::WebScrollbar*,
WebKit::WebVector<WebKit::WebRect>*) const;
#if defined(OS_LINUX)
static void SetScrollbarColors(unsigned inactive_color,
unsigned active_color,
unsigned track_color);
#endif
private:
friend class base::RefCounted<PepperScrollbarWidget>;
~PepperScrollbarWidget();
void NotifyInvalidate();
gfx::Rect dirty_rect_;
gfx::Rect location_;
std::vector<WebKit::WebRect> tickmarks_;
scoped_ptr<WebKit::WebScrollbar> scrollbar_;
DISALLOW_COPY_AND_ASSIGN(PepperScrollbarWidget);
};
#endif // CHROME_RENDERER_PEPPER_SCROLLBAR_WIDGET_H_
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