WebCore/html/HTMLFormCollection.h

   1 /*
   2  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
   3  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
   4  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 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 HTMLFormCollection_h
  24 #define HTMLFormCollection_h
  25
  26 #include "HTMLCollection.h"
  27
  28 namespace WebCore {
  29
  30 class HTMLFormElement;
  31 class QualifiedName;
  32
  33 // This class is just a big hack to find form elements even in malformed HTML elements.
  34 // The famous <table><tr><form><td> problem.
  35
  36 class HTMLFormCollection : public HTMLCollection {
  37 public:
  38     static PassRefPtr<HTMLFormCollection> create(PassRefPtr<HTMLFormElement>);
  39
  40     virtual ~HTMLFormCollection();
  41
  42     virtual Node* item(unsigned index) const;
  43     virtual Node* nextItem() const;
  44
  45     virtual Node* namedItem(const AtomicString& name) const;
  46     virtual Node* nextNamedItem(const AtomicString& name) const;
  47
  48 private:
  49     HTMLFormCollection(PassRefPtr<HTMLFormElement>);
  50
  51     virtual void updateNameCache() const;
  52     virtual unsigned calcLength() const;
  53
  54     static CollectionCache* formCollectionInfo(HTMLFormElement*);
  55
  56     Element* getNamedItem(const QualifiedName& attrName, const AtomicString& name) const;
  57     Element* nextNamedItemInternal(const String& name) const;
  58
  59     Element* getNamedFormItem(const QualifiedName& attrName, const String& name, int duplicateNumber) const;
  60
  61     mutable int currentPos;
  62 };
  63
  64 } //namespace
  65
  66 #endif