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"),
27 : * in which case the provisions of the GPL or the LGPL are applicable instead
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29 : * under the terms of either the GPL or the LGPL, and not to allow others to
30 : * use your version of this file under the terms of the MPL, indicate your
31 : * decision by deleting the provisions above and replace them with the notice
32 : * and other provisions required by the GPL or the LGPL. If you do not delete
33 : * the provisions above, a recipient may use your version of this file under
34 : * the terms of any one of the MPL, the GPL or the LGPL.
35 : *
36 : * ***** END LICENSE BLOCK ***** */
37 : #include "nsIDOMHTMLMetaElement.h"
38 : #include "nsIDOMEventTarget.h"
39 : #include "nsGenericHTMLElement.h"
40 : #include "nsGkAtoms.h"
41 : #include "nsStyleConsts.h"
42 : #include "nsAsyncDOMEvent.h"
43 : #include "nsContentUtils.h"
44 :
45 :
46 : class nsHTMLMetaElement : public nsGenericHTMLElement,
47 : public nsIDOMHTMLMetaElement
48 : {
49 : public:
50 : nsHTMLMetaElement(already_AddRefed<nsINodeInfo> aNodeInfo);
51 : virtual ~nsHTMLMetaElement();
52 :
53 : // nsISupports
54 : NS_DECL_ISUPPORTS_INHERITED
55 :
56 : // nsIDOMNode
57 0 : NS_FORWARD_NSIDOMNODE(nsGenericHTMLElement::)
58 :
59 : // nsIDOMElement
60 0 : NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLElement::)
61 :
62 : // nsIDOMHTMLElement
63 0 : NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLElement::)
64 :
65 : // nsIDOMHTMLMetaElement
66 : NS_DECL_NSIDOMHTMLMETAELEMENT
67 :
68 : virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
69 : nsIContent* aBindingParent,
70 : bool aCompileEventHandlers);
71 : virtual void UnbindFromTree(bool aDeep = true,
72 : bool aNullParent = true);
73 : void CreateAndDispatchEvent(nsIDocument* aDoc, const nsAString& aEventName);
74 :
75 : virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;
76 :
77 : virtual nsXPCClassInfo* GetClassInfo();
78 : };
79 :
80 :
81 0 : NS_IMPL_NS_NEW_HTML_ELEMENT(Meta)
82 :
83 :
84 0 : nsHTMLMetaElement::nsHTMLMetaElement(already_AddRefed<nsINodeInfo> aNodeInfo)
85 0 : : nsGenericHTMLElement(aNodeInfo)
86 : {
87 0 : }
88 :
89 0 : nsHTMLMetaElement::~nsHTMLMetaElement()
90 : {
91 0 : }
92 :
93 :
94 0 : NS_IMPL_ADDREF_INHERITED(nsHTMLMetaElement, nsGenericElement)
95 0 : NS_IMPL_RELEASE_INHERITED(nsHTMLMetaElement, nsGenericElement)
96 :
97 :
98 0 : DOMCI_NODE_DATA(HTMLMetaElement, nsHTMLMetaElement)
99 :
100 : // QueryInterface implementation for nsHTMLMetaElement
101 0 : NS_INTERFACE_TABLE_HEAD(nsHTMLMetaElement)
102 0 : NS_HTML_CONTENT_INTERFACE_TABLE1(nsHTMLMetaElement, nsIDOMHTMLMetaElement)
103 0 : NS_HTML_CONTENT_INTERFACE_TABLE_TO_MAP_SEGUE(nsHTMLMetaElement,
104 : nsGenericHTMLElement)
105 0 : NS_HTML_CONTENT_INTERFACE_TABLE_TAIL_CLASSINFO(HTMLMetaElement)
106 :
107 :
108 0 : NS_IMPL_ELEMENT_CLONE(nsHTMLMetaElement)
109 :
110 :
111 0 : NS_IMPL_STRING_ATTR(nsHTMLMetaElement, Content, content)
112 0 : NS_IMPL_STRING_ATTR(nsHTMLMetaElement, HttpEquiv, httpEquiv)
113 0 : NS_IMPL_STRING_ATTR(nsHTMLMetaElement, Name, name)
114 0 : NS_IMPL_STRING_ATTR(nsHTMLMetaElement, Scheme, scheme)
115 :
116 : nsresult
117 0 : nsHTMLMetaElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
118 : nsIContent* aBindingParent,
119 : bool aCompileEventHandlers)
120 : {
121 : nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
122 : aBindingParent,
123 0 : aCompileEventHandlers);
124 0 : NS_ENSURE_SUCCESS(rv, rv);
125 0 : if (aDocument &&
126 0 : AttrValueIs(kNameSpaceID_None, nsGkAtoms::name, nsGkAtoms::viewport, eIgnoreCase)) {
127 0 : nsAutoString content;
128 0 : rv = GetContent(content);
129 0 : NS_ENSURE_SUCCESS(rv, rv);
130 0 : nsContentUtils::ProcessViewportInfo(aDocument, content);
131 : }
132 0 : CreateAndDispatchEvent(aDocument, NS_LITERAL_STRING("DOMMetaAdded"));
133 0 : return rv;
134 : }
135 :
136 : void
137 0 : nsHTMLMetaElement::UnbindFromTree(bool aDeep, bool aNullParent)
138 : {
139 0 : nsCOMPtr<nsIDocument> oldDoc = GetCurrentDoc();
140 0 : CreateAndDispatchEvent(oldDoc, NS_LITERAL_STRING("DOMMetaRemoved"));
141 0 : nsGenericHTMLElement::UnbindFromTree(aDeep, aNullParent);
142 0 : }
143 :
144 : void
145 0 : nsHTMLMetaElement::CreateAndDispatchEvent(nsIDocument* aDoc,
146 : const nsAString& aEventName)
147 : {
148 0 : if (!aDoc)
149 0 : return;
150 :
151 : nsRefPtr<nsAsyncDOMEvent> event = new nsAsyncDOMEvent(this, aEventName, true,
152 0 : true);
153 0 : event->PostDOMEvent();
154 : }
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