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nsHTMLLIElement.cpp
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
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00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is Mozilla Communicator client code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998
00020  * the Initial Developer. All Rights Reserved.
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00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either of the GNU General Public License Version 2 or later (the "GPL"),
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00036  * ***** END LICENSE BLOCK ***** */
00037 #include "nsIDOMHTMLLIElement.h"
00038 #include "nsIDOMEventReceiver.h"
00039 #include "nsGenericHTMLElement.h"
00040 #include "nsHTMLAtoms.h"
00041 #include "nsStyleConsts.h"
00042 #include "nsPresContext.h"
00043 #include "nsMappedAttributes.h"
00044 #include "nsRuleData.h"
00045 
00046 class nsHTMLLIElement : public nsGenericHTMLElement,
00047                         public nsIDOMHTMLLIElement
00048 {
00049 public:
00050   nsHTMLLIElement(nsINodeInfo *aNodeInfo);
00051   virtual ~nsHTMLLIElement();
00052 
00053   // nsISupports
00054   NS_DECL_ISUPPORTS_INHERITED
00055 
00056   // nsIDOMNode
00057   NS_FORWARD_NSIDOMNODE_NO_CLONENODE(nsGenericHTMLElement::)
00058 
00059   // nsIDOMElement
00060   NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLElement::)
00061 
00062   // nsIDOMHTMLElement
00063   NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLElement::)
00064 
00065   // nsIDOMHTMLLIElement
00066   NS_DECL_NSIDOMHTMLLIELEMENT
00067 
00068   virtual PRBool ParseAttribute(nsIAtom* aAttribute,
00069                                 const nsAString& aValue,
00070                                 nsAttrValue& aResult);
00071   NS_IMETHOD_(PRBool) IsAttributeMapped(const nsIAtom* aAttribute) const;
00072   virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const;
00073 };
00074 
00075 
00076 NS_IMPL_NS_NEW_HTML_ELEMENT(LI)
00077 
00078 
00079 nsHTMLLIElement::nsHTMLLIElement(nsINodeInfo *aNodeInfo)
00080   : nsGenericHTMLElement(aNodeInfo)
00081 {
00082 }
00083 
00084 nsHTMLLIElement::~nsHTMLLIElement()
00085 {
00086 }
00087 
00088 
00089 NS_IMPL_ADDREF_INHERITED(nsHTMLLIElement, nsGenericElement)
00090 NS_IMPL_RELEASE_INHERITED(nsHTMLLIElement, nsGenericElement)
00091 
00092 
00093 // QueryInterface implementation for nsHTMLLIElement
00094 NS_HTML_CONTENT_INTERFACE_MAP_BEGIN(nsHTMLLIElement, nsGenericHTMLElement)
00095   NS_INTERFACE_MAP_ENTRY(nsIDOMHTMLLIElement)
00096   NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(HTMLLIElement)
00097 NS_HTML_CONTENT_INTERFACE_MAP_END
00098 
00099 
00100 NS_IMPL_DOM_CLONENODE(nsHTMLLIElement)
00101 
00102 
00103 NS_IMPL_STRING_ATTR(nsHTMLLIElement, Type, type)
00104 NS_IMPL_INT_ATTR(nsHTMLLIElement, Value, value)
00105 
00106 
00107 static const nsAttrValue::EnumTable kUnorderedListItemTypeTable[] = {
00108   { "disc", NS_STYLE_LIST_STYLE_DISC },
00109   { "circle", NS_STYLE_LIST_STYLE_CIRCLE },
00110   { "round", NS_STYLE_LIST_STYLE_CIRCLE },
00111   { "square", NS_STYLE_LIST_STYLE_SQUARE },
00112   { 0 }
00113 };
00114 
00115 static const nsAttrValue::EnumTable kOrderedListItemTypeTable[] = {
00116   { "A", NS_STYLE_LIST_STYLE_OLD_UPPER_ALPHA },
00117   { "a", NS_STYLE_LIST_STYLE_OLD_LOWER_ALPHA },
00118   { "I", NS_STYLE_LIST_STYLE_OLD_UPPER_ROMAN },
00119   { "i", NS_STYLE_LIST_STYLE_OLD_LOWER_ROMAN },
00120   { "1", NS_STYLE_LIST_STYLE_DECIMAL },
00121   { 0 }
00122 };
00123 
00124 PRBool
00125 nsHTMLLIElement::ParseAttribute(nsIAtom* aAttribute,
00126                                 const nsAString& aValue,
00127                                 nsAttrValue& aResult)
00128 {
00129   if (aAttribute == nsHTMLAtoms::type) {
00130     return aResult.ParseEnumValue(aValue, kOrderedListItemTypeTable, PR_TRUE) ||
00131            aResult.ParseEnumValue(aValue, kUnorderedListItemTypeTable);
00132   }
00133   if (aAttribute == nsHTMLAtoms::value) {
00134     return aResult.ParseIntWithBounds(aValue, 0);
00135   }
00136 
00137   return nsGenericHTMLElement::ParseAttribute(aAttribute, aValue, aResult);
00138 }
00139 
00140 static void
00141 MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
00142                       nsRuleData* aData)
00143 {
00144   if (aData->mSID == eStyleStruct_List) {
00145     if (aData->mListData->mType.GetUnit() == eCSSUnit_Null) {
00146       // type: enum
00147       const nsAttrValue* value = aAttributes->GetAttr(nsHTMLAtoms::type);
00148       if (value && value->Type() == nsAttrValue::eEnum)
00149         aData->mListData->mType.SetIntValue(value->GetEnumValue(), eCSSUnit_Enumerated);
00150     }
00151   }
00152 
00153   nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
00154 }
00155 
00156 NS_IMETHODIMP_(PRBool)
00157 nsHTMLLIElement::IsAttributeMapped(const nsIAtom* aAttribute) const
00158 {
00159   static const MappedAttributeEntry attributes[] = {
00160     { &nsHTMLAtoms::type },
00161     { nsnull },
00162   };
00163 
00164   static const MappedAttributeEntry* const map[] = {
00165     attributes,
00166     sCommonAttributeMap,
00167   };
00168 
00169   return FindAttributeDependence(aAttribute, map, NS_ARRAY_LENGTH(map));
00170 }
00171 
00172 
00173 
00174 nsMapRuleToAttributesFunc
00175 nsHTMLLIElement::GetAttributeMappingFunction() const
00176 {
00177   return &MapAttributesIntoRule;
00178 }