Home | History | Annotate | Download | only in html
      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 "core/html/FormAssociatedElement.h"
     27 #include "core/html/HTMLPlugInElement.h"
     28 
     29 namespace WebCore {
     30 
     31 class HTMLFormElement;
     32 
     33 class HTMLObjectElement FINAL : public HTMLPlugInElement, public FormAssociatedElement {
     34 public:
     35     static PassRefPtr<HTMLObjectElement> create(Document&, HTMLFormElement*, bool createdByParser);
     36     virtual ~HTMLObjectElement();
     37 
     38     const String& classId() const { return m_classId; }
     39 
     40     virtual HTMLFormElement* formOwner() const OVERRIDE;
     41 
     42     bool containsJavaApplet() const;
     43 
     44     virtual bool useFallbackContent() const OVERRIDE;
     45     virtual void renderFallbackContent() OVERRIDE;
     46 
     47     virtual bool isFormControlElement() const { return false; }
     48 
     49     virtual bool isEnumeratable() const { return true; }
     50     virtual bool isInteractiveContent() const OVERRIDE;
     51     virtual bool appendFormData(FormDataList&, bool);
     52 
     53     virtual bool isObjectElement() const OVERRIDE { return true; }
     54 
     55     // Implementations of constraint validation API.
     56     // Note that the object elements are always barred from constraint validation.
     57     virtual String validationMessage() const OVERRIDE { return String(); }
     58     bool checkValidity() { return true; }
     59     virtual void setCustomValidity(const String&) OVERRIDE { }
     60 
     61     using Node::ref;
     62     using Node::deref;
     63 
     64     virtual bool canContainRangeEndPoint() const { return useFallbackContent(); }
     65 
     66     bool isExposed() const;
     67 
     68 private:
     69     HTMLObjectElement(Document&, HTMLFormElement*, bool createdByParser);
     70 
     71     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     72     virtual bool isPresentationAttribute(const QualifiedName&) const OVERRIDE;
     73     virtual void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) OVERRIDE;
     74 
     75     virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
     76     virtual void removedFrom(ContainerNode*) OVERRIDE;
     77 
     78     virtual bool rendererIsNeeded(const RenderStyle&);
     79     virtual void didMoveToNewDocument(Document& oldDocument) OVERRIDE;
     80 
     81     virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
     82 
     83     virtual bool isURLAttribute(const Attribute&) const OVERRIDE;
     84     virtual const AtomicString imageSourceURL() const OVERRIDE;
     85 
     86     virtual RenderWidget* existingRenderWidget() const OVERRIDE;
     87 
     88     virtual void addSubresourceAttributeURLs(ListHashSet<KURL>&) const;
     89 
     90     virtual void updateWidgetInternal() OVERRIDE;
     91     void updateDocNamedItem();
     92 
     93     void reattachFallbackContent();
     94 
     95     bool hasFallbackContent() const;
     96 
     97     // FIXME: This function should not deal with url or serviceType
     98     // so that we can better share code between <object> and <embed>.
     99     void parametersForPlugin(Vector<String>& paramNames, Vector<String>& paramValues, String& url, String& serviceType);
    100 
    101     bool shouldAllowQuickTimeClassIdQuirk();
    102     bool hasValidClassId();
    103 
    104     virtual void refFormAssociatedElement() { ref(); }
    105     virtual void derefFormAssociatedElement() { deref(); }
    106 
    107     virtual bool shouldRegisterAsNamedItem() const OVERRIDE { return true; }
    108     virtual bool shouldRegisterAsExtraNamedItem() const OVERRIDE { return true; }
    109 
    110     String m_classId;
    111     bool m_useFallbackContent : 1;
    112 };
    113 
    114 DEFINE_NODE_TYPE_CASTS(HTMLObjectElement, hasTagName(HTMLNames::objectTag));
    115 
    116 inline const HTMLObjectElement* toHTMLObjectElement(const FormAssociatedElement* element)
    117 {
    118     ASSERT_WITH_SECURITY_IMPLICATION(!element || !element->isFormControlElement());
    119     const HTMLObjectElement* objectElement = static_cast<const HTMLObjectElement*>(element);
    120     // We need to assert after the cast because FormAssociatedElement doesn't
    121     // have hasTagName.
    122     ASSERT_WITH_SECURITY_IMPLICATION(!objectElement || objectElement->hasTagName(HTMLNames::objectTag));
    123     return objectElement;
    124 }
    125 
    126 inline const HTMLObjectElement& toHTMLObjectElement(const FormAssociatedElement& element)
    127 {
    128     ASSERT_WITH_SECURITY_IMPLICATION(!element.isFormControlElement());
    129     const HTMLObjectElement& objectElement = static_cast<const HTMLObjectElement&>(element);
    130     // We need to assert after the cast because FormAssociatedElement doesn't
    131     // have hasTagName.
    132     ASSERT_WITH_SECURITY_IMPLICATION(objectElement.hasTagName(HTMLNames::objectTag));
    133     return objectElement;
    134 }
    135 
    136 }
    137 
    138 #endif
    139