third_party/WebKit/Source/core/html/HTMLOptionsCollection.h

   1 /*
   2  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
   3  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
   4  *           (C) 2000 Dirk Mueller (mueller@kde.org)
   5  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Library General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Library General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Library General Public License
  18  * along with this library; see the file COPYING.LIB.  If not, write to
  19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20  * Boston, MA 02110-1301, USA.
  21  *
  22  */
  23
  24 #ifndef HTMLOptionsCollection_h
  25 #define HTMLOptionsCollection_h
  26
  27 #include "core/html/HTMLCollection.h"
  28 #include "core/html/HTMLOptionElement.h"
  29
  30 namespace blink {
  31
  32 class ExceptionState;
  33 class HTMLOptionElementOrHTMLOptGroupElement;
  34 class HTMLElementOrLong;
  35 class NodeListOrElement;
  36
  37 class HTMLOptionsCollection final : public HTMLCollection {
  38     DEFINE_WRAPPERTYPEINFO();
  39 public:
  40     static PassRefPtrWillBeRawPtr<HTMLOptionsCollection> create(ContainerNode&, CollectionType);
  41
  42     HTMLOptionElement* item(unsigned offset) const { return toHTMLOptionElement(HTMLCollection::item(offset)); }
  43
  44     void add(const HTMLOptionElementOrHTMLOptGroupElement&, const HTMLElementOrLong&, ExceptionState&);
  45     void remove(int index);
  46
  47     int selectedIndex() const;
  48     void setSelectedIndex(int);
  49
  50     void setLength(unsigned, ExceptionState&);
  51     void namedGetter(const AtomicString& name, NodeListOrElement&);
  52     bool anonymousIndexedSetter(unsigned, PassRefPtrWillBeRawPtr<HTMLOptionElement>, ExceptionState&);
  53
  54     bool elementMatches(const HTMLElement&) const;
  55
  56 private:
  57     explicit HTMLOptionsCollection(ContainerNode&);
  58
  59     void supportedPropertyNames(Vector<String>& names) override;
  60 };
  61
  62 DEFINE_TYPE_CASTS(HTMLOptionsCollection, LiveNodeListBase, collection, collection->type() == SelectOptions, collection.type() == SelectOptions);
  63
  64 inline bool HTMLOptionsCollection::elementMatches(const HTMLElement& element) const
  65 {
  66     if (!isHTMLOptionElement(element))
  67         return false;
  68     Node* parent = element.parentNode();
  69     if (!parent)
  70         return false;
  71     if (parent == &rootNode())
  72         return true;
  73     return isHTMLOptGroupElement(*parent) && parent->parentNode() == &rootNode();
  74 }
  75
  76 } // namespace blink
  77
  78 #endif // HTMLOptionsCollection_h