1 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is Mozilla Communicator client code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 1998
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either of the GNU General Public License Version 2 or later (the "GPL"),
26 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : #include "mozilla/Util.h"
39 :
40 : #include "nsIDOMHTMLPreElement.h"
41 : #include "nsIDOMEventTarget.h"
42 : #include "nsGenericHTMLElement.h"
43 : #include "nsGkAtoms.h"
44 : #include "nsStyleConsts.h"
45 : #include "nsMappedAttributes.h"
46 : #include "nsRuleData.h"
47 :
48 : using namespace mozilla;
49 :
50 : class nsHTMLPreElement : public nsGenericHTMLElement,
51 : public nsIDOMHTMLPreElement
52 : {
53 : public:
54 : nsHTMLPreElement(already_AddRefed<nsINodeInfo> aNodeInfo);
55 : virtual ~nsHTMLPreElement();
56 :
57 : // nsISupports
58 : NS_DECL_ISUPPORTS_INHERITED
59 :
60 : // nsIDOMNode
61 0 : NS_FORWARD_NSIDOMNODE(nsGenericHTMLElement::)
62 :
63 : // nsIDOMElement
64 0 : NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLElement::)
65 :
66 : // nsIDOMHTMLElement
67 0 : NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLElement::)
68 :
69 : // nsIDOMHTMLPreElement
70 : NS_IMETHOD GetWidth(PRInt32* aWidth);
71 : NS_IMETHOD SetWidth(PRInt32 aWidth);
72 :
73 : virtual bool ParseAttribute(PRInt32 aNamespaceID,
74 : nsIAtom* aAttribute,
75 : const nsAString& aValue,
76 : nsAttrValue& aResult);
77 : NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const;
78 : virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const;
79 :
80 : virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;
81 :
82 : virtual nsXPCClassInfo* GetClassInfo();
83 : };
84 :
85 :
86 0 : NS_IMPL_NS_NEW_HTML_ELEMENT(Pre)
87 :
88 :
89 0 : nsHTMLPreElement::nsHTMLPreElement(already_AddRefed<nsINodeInfo> aNodeInfo)
90 0 : : nsGenericHTMLElement(aNodeInfo)
91 : {
92 0 : }
93 :
94 0 : nsHTMLPreElement::~nsHTMLPreElement()
95 : {
96 0 : }
97 :
98 :
99 0 : NS_IMPL_ADDREF_INHERITED(nsHTMLPreElement, nsGenericElement)
100 0 : NS_IMPL_RELEASE_INHERITED(nsHTMLPreElement, nsGenericElement)
101 :
102 :
103 0 : DOMCI_NODE_DATA(HTMLPreElement, nsHTMLPreElement)
104 :
105 : // QueryInterface implementation for nsHTMLPreElement
106 0 : NS_INTERFACE_TABLE_HEAD(nsHTMLPreElement)
107 0 : NS_HTML_CONTENT_INTERFACE_TABLE1(nsHTMLPreElement, nsIDOMHTMLPreElement)
108 0 : NS_HTML_CONTENT_INTERFACE_TABLE_TO_MAP_SEGUE(nsHTMLPreElement,
109 : nsGenericHTMLElement)
110 0 : NS_HTML_CONTENT_INTERFACE_TABLE_TAIL_CLASSINFO(HTMLPreElement)
111 :
112 :
113 0 : NS_IMPL_ELEMENT_CLONE(nsHTMLPreElement)
114 :
115 :
116 0 : NS_IMPL_INT_ATTR(nsHTMLPreElement, Width, width)
117 :
118 :
119 : bool
120 0 : nsHTMLPreElement::ParseAttribute(PRInt32 aNamespaceID,
121 : nsIAtom* aAttribute,
122 : const nsAString& aValue,
123 : nsAttrValue& aResult)
124 : {
125 0 : if (aNamespaceID == kNameSpaceID_None) {
126 0 : if (aAttribute == nsGkAtoms::cols) {
127 0 : return aResult.ParseIntWithBounds(aValue, 0);
128 : }
129 0 : if (aAttribute == nsGkAtoms::width) {
130 0 : return aResult.ParseIntWithBounds(aValue, 0);
131 : }
132 : }
133 :
134 : return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
135 0 : aResult);
136 : }
137 :
138 : static void
139 0 : MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
140 : nsRuleData* aData)
141 : {
142 0 : if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Position)) {
143 0 : nsCSSValue* width = aData->ValueForWidth();
144 0 : if (width->GetUnit() == eCSSUnit_Null) {
145 : // width: int (html4 attribute == nav4 cols)
146 0 : const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::width);
147 0 : if (!value || value->Type() != nsAttrValue::eInteger) {
148 : // cols: int (nav4 attribute)
149 0 : value = aAttributes->GetAttr(nsGkAtoms::cols);
150 : }
151 :
152 0 : if (value && value->Type() == nsAttrValue::eInteger)
153 0 : width->SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Char);
154 : }
155 : }
156 0 : if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Text)) {
157 0 : nsCSSValue* whiteSpace = aData->ValueForWhiteSpace();
158 0 : if (whiteSpace->GetUnit() == eCSSUnit_Null) {
159 : // wrap: empty
160 0 : if (aAttributes->GetAttr(nsGkAtoms::wrap))
161 0 : whiteSpace->SetIntValue(NS_STYLE_WHITESPACE_PRE_WRAP, eCSSUnit_Enumerated);
162 :
163 : // width: int (html4 attribute == nav4 cols)
164 0 : const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::width);
165 0 : if (!value || value->Type() != nsAttrValue::eInteger) {
166 : // cols: int (nav4 attribute)
167 0 : value = aAttributes->GetAttr(nsGkAtoms::cols);
168 : }
169 :
170 0 : if (value && value->Type() == nsAttrValue::eInteger) {
171 : // Force wrap property on since we want to wrap at a width
172 : // boundary not just a newline.
173 0 : whiteSpace->SetIntValue(NS_STYLE_WHITESPACE_PRE_WRAP, eCSSUnit_Enumerated);
174 : }
175 : }
176 : }
177 :
178 0 : nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
179 0 : }
180 :
181 : NS_IMETHODIMP_(bool)
182 0 : nsHTMLPreElement::IsAttributeMapped(const nsIAtom* aAttribute) const
183 : {
184 : static const MappedAttributeEntry attributes[] = {
185 : { &nsGkAtoms::wrap },
186 : { &nsGkAtoms::cols },
187 : { &nsGkAtoms::width },
188 : { nsnull },
189 : };
190 :
191 : static const MappedAttributeEntry* const map[] = {
192 : attributes,
193 : sCommonAttributeMap,
194 : };
195 :
196 0 : return FindAttributeDependence(aAttribute, map);
197 : }
198 :
199 : nsMapRuleToAttributesFunc
200 0 : nsHTMLPreElement::GetAttributeMappingFunction() const
201 : {
202 0 : return &MapAttributesIntoRule;
203 : }
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