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/*
* Copyright (C) 2007 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef WebScrollBar_h
#define WebScrollBar_h
#include "WebKit.h"
#include <wtf/RefPtr.h>
#include <wtf/OwnPtr.h>
#include <WebCore/COMPtr.h>
#include <WebCore/Scrollbar.h>
#include <WebCore/ScrollableArea.h>
namespace WebCore {
class Scrollbar;
}
class WebScrollBar : public IWebScrollBarPrivate, WebCore::ScrollableArea {
public:
static WebScrollBar* createInstance();
protected:
WebScrollBar();
~WebScrollBar();
public:
// IUnknown
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject);
virtual ULONG STDMETHODCALLTYPE AddRef(void);
virtual ULONG STDMETHODCALLTYPE Release(void);
// IWebScrollBarPrivate
virtual HRESULT STDMETHODCALLTYPE init(
/* [in] */ IWebScrollBarDelegatePrivate* delegate,
/* [in] */ OLE_HANDLE containingWindow,
/* [in] */ WebScrollBarOrientation orientation,
/* [in] */ WebScrollBarControlSize controlSize);
virtual HRESULT STDMETHODCALLTYPE setEnabled(
/* [in] */ BOOL enabled);
virtual HRESULT STDMETHODCALLTYPE setSteps(
/* [in] */ int lineStep,
/* [in] */ int pageStep);
virtual HRESULT STDMETHODCALLTYPE setProportion(
/* [in] */ int visibleSize,
/* [in] */ int totalSize);
virtual HRESULT STDMETHODCALLTYPE setRect(
/* [in] */ RECT bounds);
virtual HRESULT STDMETHODCALLTYPE setValue(
/* [in] */ int value);
virtual HRESULT STDMETHODCALLTYPE value(
/* [retval][out] */ int* value);
virtual HRESULT STDMETHODCALLTYPE paint(
/* [in] */ HDC dc,
/* [in] */ RECT damageRect);
virtual HRESULT STDMETHODCALLTYPE frameRect(
/* [retval][out] */ RECT* bounds);
virtual HRESULT STDMETHODCALLTYPE width(
/* [retval][out] */ int* w);
virtual HRESULT STDMETHODCALLTYPE height(
/* [retval][out] */ int* h);
virtual HRESULT STDMETHODCALLTYPE requestedWidth(
/* [retval][out] */ int* w);
virtual HRESULT STDMETHODCALLTYPE requestedHeight(
/* [retval][out] */ int* h);
virtual HRESULT STDMETHODCALLTYPE handleMouseEvent(
/* [in] */ OLE_HANDLE window,
/* [in] */ UINT msg,
/* [in] */ WPARAM wParam,
/* [in] */ LPARAM lParam);
virtual HRESULT STDMETHODCALLTYPE scroll(
/* [in] */ WebScrollDirection direction,
/* [in] */ WebScrollGranularity granularity,
/* [in] */ float multiplier);
protected:
// ScrollableArea
virtual int scrollSize(WebCore::ScrollbarOrientation) const;
virtual int scrollPosition(WebCore::Scrollbar*) const;
virtual void setScrollOffset(const WebCore::IntPoint&);
virtual void invalidateScrollbarRect(WebCore::Scrollbar*, const WebCore::IntRect&);
virtual void invalidateScrollCornerRect(const WebCore::IntRect&) { }
virtual WebCore::ScrollableArea* enclosingScrollableArea() const { return 0; }
virtual int visibleHeight() const OVERRIDE;
virtual int visibleWidth() const OVERRIDE;
virtual WebCore::IntSize contentsSize() const OVERRIDE;
virtual bool scrollbarsCanBeActive() const OVERRIDE;
virtual WebCore::IntRect scrollableAreaBoundingBox() const OVERRIDE;
// FIXME: We should provide a way to set this value.
virtual bool isActive() const { return true; }
virtual bool isScrollCornerVisible() const { return false; }
virtual WebCore::IntRect scrollCornerRect() const { return WebCore::IntRect(); }
virtual WebCore::Scrollbar* horizontalScrollbar() const;
virtual WebCore::Scrollbar* verticalScrollbar() const;
ULONG m_refCount;
HWND m_containingWindow;
int m_currentPosition;
RefPtr<WebCore::Scrollbar> m_scrollBar;
COMPtr<IWebScrollBarDelegatePrivate> m_delegate;
};
#endif
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