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// Copyright (c) 2006-2008 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 FramelessScrollView_h
#define FramelessScrollView_h
#include "ScrollView.h"
namespace WebCore {
class FramelessScrollViewClient;
class PlatformKeyboardEvent;
class PlatformMouseEvent;
class PlatformWheelEvent;
// A FramelessScrollView is a ScrollView that can be used to render custom
// content, which does not have an associated Frame.
//
// TODO: It may be better to just develop a custom subclass of Widget that
// can have scroll bars for this instead of trying to reuse ScrollView.
//
class FramelessScrollView : public ScrollView {
public:
FramelessScrollView() : m_client(0) {}
~FramelessScrollView();
FramelessScrollViewClient* client() const { return m_client; }
void setClient(FramelessScrollViewClient* client) { m_client = client; }
// Event handlers that subclasses must implement.
virtual bool handleMouseDownEvent(const PlatformMouseEvent&) = 0;
virtual bool handleMouseMoveEvent(const PlatformMouseEvent&) = 0;
virtual bool handleMouseReleaseEvent(const PlatformMouseEvent&) = 0;
virtual bool handleWheelEvent(const PlatformWheelEvent&) = 0;
virtual bool handleKeyEvent(const PlatformKeyboardEvent&) = 0;
// ScrollbarClient public methods:
virtual void invalidateScrollbarRect(Scrollbar*, const IntRect&);
virtual bool isActive() const;
// Widget public methods:
virtual void invalidateRect(const IntRect&);
// ScrollView public methods:
virtual HostWindow* hostWindow() const;
virtual IntRect windowClipRect(bool clipToContents = true) const;
protected:
// ScrollView protected methods:
virtual void paintContents(GraphicsContext*, const IntRect& damageRect);
virtual void contentsResized();
virtual void visibleContentsResized();
private:
FramelessScrollViewClient* m_client;
};
}
#endif // FramelessScrollView_h
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