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/*
* Copyright (C) 2010 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 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 PluginWidget_h
#define PluginWidget_h
#include "PlatformLayer.h"
#include "ScrollTypes.h"
#include "Widget.h"
#include <wtf/text/WTFString.h>
namespace JSC {
class ExecState;
class JSGlobalObject;
class JSObject;
}
namespace WebCore {
class Scrollbar;
// PluginViewBase is a widget that all plug-in views inherit from, both in Webkit and WebKit2.
// It's intended as a stopgap measure until we can merge all plug-in views into a single plug-in view.
class PluginViewBase : public Widget {
public:
#if USE(ACCELERATED_COMPOSITING)
virtual PlatformLayer* platformLayer() const { return 0; }
#endif
virtual JSC::JSObject* scriptObject(JSC::JSGlobalObject*) { return 0; }
virtual void storageBlockingStateChanged() { }
virtual void privateBrowsingStateChanged(bool) { }
virtual bool getFormValue(String&) { return false; }
virtual bool scroll(ScrollDirection, ScrollGranularity) { return false; }
// A plug-in can ask WebKit to handle scrollbars for it.
virtual Scrollbar* horizontalScrollbar() { return 0; }
virtual Scrollbar* verticalScrollbar() { return 0; }
// FIXME: This is a hack that works around the fact that the WebKit2 PluginView isn't a ScrollableArea.
virtual bool wantsWheelEvents() { return false; }
virtual bool supportsKeyboardFocus() const { return false; }
virtual bool canProcessDrag() const { return false; }
virtual bool shouldAlwaysAutoStart() const { return false; }
virtual void beginSnapshottingRunningPlugin() { }
virtual bool shouldAllowNavigationFromDrags() const { return false; }
virtual bool isPluginViewBase() const { return true; }
virtual bool shouldNotAddLayer() const { return false; }
protected:
explicit PluginViewBase(PlatformWidget widget = 0) : Widget(widget) { }
};
inline PluginViewBase* toPluginViewBase(Widget* widget)
{
ASSERT(!widget || widget->isPluginViewBase());
return static_cast<PluginViewBase*>(widget);
}
inline const PluginViewBase* toPluginViewBase(const Widget* widget)
{
ASSERT(!widget || widget->isPluginViewBase());
return static_cast<const PluginViewBase*>(widget);
}
// This will catch anyone doing an unnecessary cast.
void toPluginViewBase(const PluginViewBase*);
} // namespace WebCore
#endif // PluginWidget_h
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