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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, 2008 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 HTMLImageElement_h
     24 #define HTMLImageElement_h
     25 
     26 #include "GraphicsTypes.h"
     27 #include "HTMLElement.h"
     28 #include "HTMLImageLoader.h"
     29 
     30 namespace WebCore {
     31 
     32 class HTMLFormElement;
     33 
     34 class HTMLImageElement : public HTMLElement {
     35     friend class HTMLFormElement;
     36 public:
     37     HTMLImageElement(const QualifiedName&, Document*, HTMLFormElement* = 0);
     38     ~HTMLImageElement();
     39 
     40     virtual HTMLTagStatus endTagRequirement() const { return TagStatusForbidden; }
     41     virtual int tagPriority() const { return 0; }
     42 
     43     virtual bool mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const;
     44     virtual void parseMappedAttribute(MappedAttribute*);
     45 
     46     virtual void attach();
     47     virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);
     48 
     49     virtual bool canStartSelection() const { return false; }
     50 
     51     int width(bool ignorePendingStylesheets = false) const;
     52     int height(bool ignorePendingStylesheets = false) const;
     53 
     54     int naturalWidth() const;
     55     int naturalHeight() const;
     56 
     57     bool isServerMap() const { return ismap && usemap.isEmpty(); }
     58 
     59     String altText() const;
     60 
     61     virtual bool isURLAttribute(Attribute*) const;
     62 
     63     CompositeOperator compositeOperator() const { return m_compositeOperator; }
     64 
     65     CachedImage* cachedImage() const { return m_imageLoader.image(); }
     66     void setCachedImage(CachedImage* i) { m_imageLoader.setImage(i); };
     67 
     68     void setLoadManually(bool loadManually) { m_imageLoader.setLoadManually(loadManually); }
     69 
     70     const AtomicString& alt() const;
     71 
     72     virtual bool draggable() const;
     73 
     74     void setHeight(int);
     75 
     76     int hspace() const;
     77     void setHspace(int);
     78 
     79     bool isMap() const;
     80     void setIsMap(bool);
     81 
     82     KURL longDesc() const;
     83     void setLongDesc(const String&);
     84 
     85     KURL lowsrc() const;
     86     void setLowsrc(const String&);
     87 
     88     KURL src() const;
     89     void setSrc(const String&);
     90 
     91     int vspace() const;
     92     void setVspace(int);
     93 
     94     void setWidth(int);
     95 
     96     int x() const;
     97     int y() const;
     98 
     99     bool complete() const;
    100 
    101     bool haveFiredLoadEvent() const { return m_imageLoader.haveFiredLoadEvent(); }
    102 
    103     virtual void addSubresourceAttributeURLs(ListHashSet<KURL>&) const;
    104 
    105 private:
    106     virtual void insertedIntoDocument();
    107     virtual void removedFromDocument();
    108     virtual void insertedIntoTree(bool deep);
    109     virtual void removedFromTree(bool deep);
    110 
    111     HTMLImageLoader m_imageLoader;
    112     String usemap;
    113     bool ismap;
    114     HTMLFormElement* m_form;
    115     AtomicString m_name;
    116     AtomicString m_id;
    117     CompositeOperator m_compositeOperator;
    118 };
    119 
    120 } //namespace
    121 
    122 #endif
    123