/*
* Copyright (C) 2012 Google 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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 WebPluginScrollbar_h
#define WebPluginScrollbar_h
#include "../platform/WebCanvas.h"
#include "../platform/WebScrollbar.h"
namespace blink {
class WebInputEvent;
class WebPluginContainer;
class WebPluginScrollbarClient;
struct WebRect;
class WebPluginScrollbar : public WebScrollbar {
public:
// Creates a WebPluginScrollbar for use by a plugin. The plugin container and
// client are guaranteed to outlive this object.
BLINK_EXPORT static WebPluginScrollbar* createForPlugin(WebScrollbar::Orientation,
WebPluginContainer*,
WebPluginScrollbarClient*);
virtual ~WebPluginScrollbar() { }
// Gets the thickness of the scrollbar in pixels.
BLINK_EXPORT static int defaultThickness();
// Sets the rectangle of the scrollbar.
virtual void setLocation(const WebRect&) = 0;
// Sets the size of the scrollable region in pixels, i.e. if a document is
// 800x10000 pixels and the viewport is 1000x1000 pixels, then setLocation
// for the vertical scrollbar would have passed in a rectangle like:
// (800 - defaultThickness(), 0) (defaultThickness() x 10000)
// and setDocumentSize(10000)
virtual void setDocumentSize(int) = 0;
// Sets the current value.
virtual void setValue(int position) = 0;
// Scroll back or forward with the given granularity.
virtual void scroll(ScrollDirection, ScrollGranularity, float multiplier) = 0;
// Paint the given rectangle.
virtual void paint(WebCanvas*, const WebRect&) = 0;
// Returns true iff the given event was used.
virtual bool handleInputEvent(const WebInputEvent&) = 0;
};
} // namespace blink
#endif