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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2004, 2008, 2010 Apple Inc. All rights reserved.
* Copyright (C) 2010 Google 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 HTMLImageElement_h
#define HTMLImageElement_h
#include "core/html/HTMLElement.h"
#include "core/html/HTMLImageLoader.h"
#include "core/html/canvas/CanvasImageSource.h"
#include "platform/graphics/GraphicsTypes.h"
#include "wtf/WeakPtr.h"
namespace WebCore {
class HTMLFormElement;
class ImageCandidate;
class HTMLImageElement FINAL : public HTMLElement, public CanvasImageSource {
public:
static PassRefPtrWillBeRawPtr<HTMLImageElement> create(Document&);
static PassRefPtrWillBeRawPtr<HTMLImageElement> create(Document&, HTMLFormElement*, bool createdByParser);
static PassRefPtrWillBeRawPtr<HTMLImageElement> createForJSConstructor(Document&, int width, int height);
virtual ~HTMLImageElement();
virtual void trace(Visitor*) OVERRIDE;
int width(bool ignorePendingStylesheets = false);
int height(bool ignorePendingStylesheets = false);
int naturalWidth() const;
int naturalHeight() const;
const String& currentSrc() const;
bool isServerMap() const;
const AtomicString& altText() const;
CompositeOperator compositeOperator() const { return m_compositeOperator; }
ImageResource* cachedImage() const { return imageLoader().image(); }
void setImageResource(ImageResource* i) { imageLoader().setImage(i); };
void setLoadManually(bool loadManually) { imageLoader().setLoadManually(loadManually); }
const AtomicString& alt() const;
void setHeight(int);
KURL src() const;
void setSrc(const String&);
void setWidth(int);
int x() const;
int y() const;
bool complete() const;
bool hasPendingActivity() const { return imageLoader().hasPendingActivity(); }
virtual bool canContainRangeEndPoint() const OVERRIDE { return false; }
void addClient(ImageLoaderClient* client) { imageLoader().addClient(client); }
void removeClient(ImageLoaderClient* client) { imageLoader().removeClient(client); }
virtual const AtomicString imageSourceURL() const OVERRIDE;
virtual HTMLFormElement* formOwner() const OVERRIDE;
void formRemovedFromTree(const Node& formRoot);
// CanvasImageSourceImplementations
virtual PassRefPtr<Image> getSourceImageForCanvas(SourceImageMode, SourceImageStatus*) const;
virtual bool wouldTaintOrigin(SecurityOrigin*) const OVERRIDE;
virtual FloatSize sourceSize() const OVERRIDE;
virtual FloatSize defaultDestinationSize() const OVERRIDE;
virtual const KURL& sourceURL() const OVERRIDE;
enum UpdateFromElementBehavior {
UpdateNormal,
UpdateIgnorePreviousError
};
// public so that HTMLPictureElement can call this as well.
void selectSourceURL(UpdateFromElementBehavior);
protected:
explicit HTMLImageElement(Document&, HTMLFormElement* = 0, bool createdByParser = false);
virtual void didMoveToNewDocument(Document& oldDocument) OVERRIDE;
private:
virtual bool areAuthorShadowsAllowed() const OVERRIDE { return false; }
virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
virtual bool isPresentationAttribute(const QualifiedName&) const OVERRIDE;
virtual void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) OVERRIDE;
virtual void attach(const AttachContext& = AttachContext()) OVERRIDE;
virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE;
virtual bool canStartSelection() const OVERRIDE;
virtual bool isURLAttribute(const Attribute&) const OVERRIDE;
virtual bool hasLegalLinkAttribute(const QualifiedName&) const OVERRIDE;
virtual const QualifiedName& subResourceAttributeName() const OVERRIDE;
virtual bool draggable() const OVERRIDE;
virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
virtual void removedFrom(ContainerNode*) OVERRIDE;
virtual bool shouldRegisterAsNamedItem() const OVERRIDE { return true; }
virtual bool shouldRegisterAsExtraNamedItem() const OVERRIDE { return true; }
virtual bool isInteractiveContent() const OVERRIDE;
virtual Image* imageContents() OVERRIDE;
void resetFormOwner();
ImageCandidate findBestFitImageFromPictureParent();
void setBestFitURLAndDPRFromImageCandidate(const ImageCandidate&);
HTMLImageLoader& imageLoader() const { return *m_imageLoader; }
OwnPtrWillBeMember<HTMLImageLoader> m_imageLoader;
#if ENABLE(OILPAN)
Member<HTMLFormElement> m_form;
#else
WeakPtr<HTMLFormElement> m_form;
#endif
CompositeOperator m_compositeOperator;
AtomicString m_bestFitImageURL;
float m_imageDevicePixelRatio;
bool m_formWasSetByParser;
bool m_elementCreatedByParser;
};
} //namespace
#endif
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