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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2004, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef HTMLPlugInElement_h
#define HTMLPlugInElement_h
#include "bindings/v8/SharedPersistent.h"
#include "core/html/HTMLFrameOwnerElement.h"
#include <v8.h>
struct NPObject;
namespace WebCore {
class HTMLImageLoader;
class RenderEmbeddedObject;
class RenderWidget;
class Widget;
enum PreferPlugInsForImagesOption {
ShouldPreferPlugInsForImages,
ShouldNotPreferPlugInsForImages
};
class HTMLPlugInElement : public HTMLFrameOwnerElement {
public:
virtual ~HTMLPlugInElement();
virtual void trace(Visitor*) OVERRIDE;
void resetInstance();
SharedPersistent<v8::Object>* pluginWrapper();
Widget* pluginWidget() const;
NPObject* getNPObject();
bool canProcessDrag() const;
const String& url() const { return m_url; }
// Public for FrameView::addWidgetToUpdate()
bool needsWidgetUpdate() const { return m_needsWidgetUpdate; }
void setNeedsWidgetUpdate(bool needsWidgetUpdate) { m_needsWidgetUpdate = needsWidgetUpdate; }
void updateWidget();
bool shouldAccelerate() const;
void requestPluginCreationWithoutRendererIfPossible();
void createPluginWithoutRenderer();
protected:
HTMLPlugInElement(const QualifiedName& tagName, Document&, bool createdByParser, PreferPlugInsForImagesOption);
// Node functions:
virtual void didMoveToNewDocument(Document& oldDocument) OVERRIDE;
// Element functions:
virtual bool isPresentationAttribute(const QualifiedName&) const OVERRIDE;
virtual void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) OVERRIDE;
virtual bool hasFallbackContent() const;
virtual bool useFallbackContent() const;
// Create or update the RenderWidget and return it, triggering layout if
// necessary.
virtual RenderWidget* renderWidgetForJSBindings() const;
bool isImageType();
bool shouldPreferPlugInsForImages() const { return m_shouldPreferPlugInsForImages; }
RenderEmbeddedObject* renderEmbeddedObject() const;
bool allowedToLoadFrameURL(const String& url);
bool requestObject(const String& url, const String& mimeType, const Vector<String>& paramNames, const Vector<String>& paramValues);
bool shouldUsePlugin(const KURL&, const String& mimeType, bool hasFallback, bool& useFallback);
void dispatchErrorEvent();
String m_serviceType;
String m_url;
KURL m_loadedUrl;
OwnPtrWillBeMember<HTMLImageLoader> m_imageLoader;
bool m_isDelayingLoadEvent;
private:
// EventTarget functions:
virtual void removeAllEventListeners() OVERRIDE FINAL;
// Node functions:
virtual bool canContainRangeEndPoint() const OVERRIDE { return false; }
virtual bool willRespondToMouseClickEvents() OVERRIDE FINAL;
virtual void defaultEventHandler(Event*) OVERRIDE FINAL;
virtual void attach(const AttachContext& = AttachContext()) OVERRIDE FINAL;
virtual void detach(const AttachContext& = AttachContext()) OVERRIDE FINAL;
virtual void finishParsingChildren() OVERRIDE FINAL;
// Element functions:
virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE;
virtual void willRecalcStyle(StyleRecalcChange) OVERRIDE FINAL;
virtual bool supportsFocus() const OVERRIDE FINAL { return true; }
virtual bool rendererIsFocusable() const OVERRIDE FINAL;
virtual bool isKeyboardFocusable() const OVERRIDE FINAL;
virtual void didAddUserAgentShadowRoot(ShadowRoot&) OVERRIDE FINAL;
virtual void willAddFirstAuthorShadowRoot() OVERRIDE FINAL;
// HTMLElement function:
virtual bool hasCustomFocusLogic() const OVERRIDE;
virtual bool isPluginElement() const OVERRIDE FINAL;
// Return any existing RenderWidget without triggering relayout, or 0 if it
// doesn't yet exist.
virtual RenderWidget* existingRenderWidget() const = 0;
virtual void updateWidgetInternal() = 0;
enum DisplayState {
Restarting,
RestartingWithPendingMouseClick,
Playing
};
DisplayState displayState() const { return m_displayState; }
void setDisplayState(DisplayState state) { m_displayState = state; }
bool loadPlugin(const KURL&, const String& mimeType, const Vector<String>& paramNames, const Vector<String>& paramValues, bool useFallback, bool requireRenderer);
bool pluginIsLoadable(const KURL&, const String& mimeType);
bool wouldLoadAsNetscapePlugin(const String& url, const String& serviceType);
mutable RefPtr<SharedPersistent<v8::Object> > m_pluginWrapper;
NPObject* m_NPObject;
bool m_isCapturingMouseEvents;
bool m_needsWidgetUpdate;
bool m_shouldPreferPlugInsForImages;
DisplayState m_displayState;
// Normally the Widget is stored in HTMLFrameOwnerElement::m_widget.
// However, plugins can persist even when not rendered. In order to
// prevent confusing code which may assume that widget() != null
// means the frame is active, we save off m_widget here while
// the plugin is persisting but not being displayed.
RefPtr<Widget> m_persistedPluginWidget;
};
inline bool isHTMLPlugInElement(const Element& element)
{
return element.isHTMLElement() && toHTMLElement(element).isPluginElement();
}
inline bool isHTMLPlugInElement(const HTMLElement& element)
{
return element.isPluginElement();
}
DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLPlugInElement);
} // namespace WebCore
#endif // HTMLPlugInElement_h
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