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      1 /*
      2  * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org)
      3  *           (C) 1999 Antti Koivisto (koivisto (at) kde.org)
      4  * Copyright (C) 2004, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Library General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Library General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Library General Public License
     17  * along with this library; see the file COPYING.LIB.  If not, write to
     18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  * Boston, MA 02110-1301, USA.
     20  *
     21  */
     22 
     23 #ifndef HTMLObjectElement_h
     24 #define HTMLObjectElement_h
     25 
     26 #include "FormAssociatedElement.h"
     27 #include "HTMLPlugInImageElement.h"
     28 
     29 namespace WebCore {
     30 
     31 class HTMLFormElement;
     32 
     33 class HTMLObjectElement : public HTMLPlugInImageElement, public FormAssociatedElement {
     34 public:
     35     static PassRefPtr<HTMLObjectElement> create(const QualifiedName&, Document*, HTMLFormElement*, bool createdByParser);
     36     virtual ~HTMLObjectElement();
     37 
     38     bool isDocNamedItem() const { return m_docNamedItem; }
     39 
     40     const String& classId() const { return m_classId; }
     41 
     42     bool containsJavaApplet() const;
     43 
     44     virtual bool useFallbackContent() const { return m_useFallbackContent; }
     45     void renderFallbackContent();
     46 
     47     // Implementations of FormAssociatedElement
     48     HTMLFormElement* form() const { return FormAssociatedElement::form(); }
     49 
     50     virtual bool isFormControlElement() const { return false; }
     51 
     52     virtual bool isEnumeratable() const { return true; }
     53     virtual bool appendFormData(FormDataList&, bool);
     54 
     55     // Implementations of constraint validation API.
     56     // Note that the object elements are always barred from constraint validation.
     57     String validationMessage() { return String(); }
     58     bool checkValidity() { return true; }
     59     void setCustomValidity(const String&) { }
     60 
     61     virtual void attributeChanged(Attribute*, bool preserveDecls = false);
     62 
     63     using TreeShared<ContainerNode>::ref;
     64     using TreeShared<ContainerNode>::deref;
     65 
     66 private:
     67     HTMLObjectElement(const QualifiedName&, Document*, HTMLFormElement*, bool createdByParser);
     68 
     69     virtual void parseMappedAttribute(Attribute*);
     70     virtual void insertedIntoTree(bool deep);
     71     virtual void removedFromTree(bool deep);
     72 
     73     virtual bool rendererIsNeeded(RenderStyle*);
     74     virtual void insertedIntoDocument();
     75     virtual void removedFromDocument();
     76     virtual void willMoveToNewOwnerDocument();
     77 
     78     virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
     79 
     80     virtual bool isURLAttribute(Attribute*) const;
     81     virtual const QualifiedName& imageSourceAttributeName() const;
     82 
     83     virtual RenderWidget* renderWidgetForJSBindings() const;
     84 
     85     virtual void addSubresourceAttributeURLs(ListHashSet<KURL>&) const;
     86 
     87     virtual void updateWidget(PluginCreationOption);
     88     void updateDocNamedItem();
     89 
     90     bool hasFallbackContent() const;
     91 
     92     // FIXME: This function should not deal with url or serviceType
     93     // so that we can better share code between <object> and <embed>.
     94     void parametersForPlugin(Vector<String>& paramNames, Vector<String>& paramValues, String& url, String& serviceType);
     95 
     96     bool hasValidClassId();
     97 
     98     virtual void refFormAssociatedElement() { ref(); }
     99     virtual void derefFormAssociatedElement() { deref(); }
    100     virtual HTMLFormElement* virtualForm() const;
    101 
    102     virtual const AtomicString& formControlName() const;
    103 
    104     AtomicString m_id;
    105     String m_classId;
    106     bool m_docNamedItem : 1;
    107     bool m_useFallbackContent : 1;
    108 };
    109 
    110 }
    111 
    112 #endif
    113