1 /*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "DOMUtilitiesPrivate.h"
33
34 #include "Element.h"
35 #include "HTMLInputElement.h"
36 #include "HTMLLinkElement.h"
37 #include "HTMLMetaElement.h"
38 #include "HTMLNames.h"
39 #include "HTMLOptionElement.h"
40 #include "Node.h"
41
42 #include "WebInputElement.h"
43
44 using namespace WebCore;
45
46 namespace {
47
48 template <class HTMLNodeType>
toHTMLElement(Node * node,const QualifiedName & name)49 HTMLNodeType* toHTMLElement(Node* node, const QualifiedName& name)
50 {
51 if (node->isHTMLElement()
52 && static_cast<HTMLElement*>(node)->hasTagName(name)) {
53 return static_cast<HTMLNodeType*>(node);
54 }
55 return 0;
56 }
57
58 } // namespace
59
60 namespace WebKit {
61
toHTMLInputElement(Node * node)62 HTMLInputElement* toHTMLInputElement(Node* node)
63 {
64 return toHTMLElement<HTMLInputElement>(node, HTMLNames::inputTag);
65 }
66
toHTMLLinkElement(Node * node)67 HTMLLinkElement* toHTMLLinkElement(Node* node)
68 {
69 return toHTMLElement<HTMLLinkElement>(node, HTMLNames::linkTag);
70 }
71
toHTMLMetaElement(Node * node)72 HTMLMetaElement* toHTMLMetaElement(Node* node)
73 {
74 return toHTMLElement<HTMLMetaElement>(node, HTMLNames::metaTag);
75 }
76
toHTMLOptionElement(Node * node)77 HTMLOptionElement* toHTMLOptionElement(Node* node)
78 {
79 return toHTMLElement<HTMLOptionElement>(node, HTMLNames::optionTag);
80 }
81
nameOfInputElement(HTMLInputElement * element)82 String nameOfInputElement(HTMLInputElement* element)
83 {
84 return WebInputElement(element).nameForAutofill();
85 }
86
elementHasLegalLinkAttribute(const Element * element,const QualifiedName & attrName)87 bool elementHasLegalLinkAttribute(const Element* element,
88 const QualifiedName& attrName)
89 {
90 if (attrName == HTMLNames::srcAttr) {
91 // Check src attribute.
92 if (element->hasTagName(HTMLNames::imgTag)
93 || element->hasTagName(HTMLNames::scriptTag)
94 || element->hasTagName(HTMLNames::iframeTag)
95 || element->hasTagName(HTMLNames::frameTag))
96 return true;
97 if (element->hasTagName(HTMLNames::inputTag)) {
98 const HTMLInputElement* input =
99 static_cast<const HTMLInputElement*>(element);
100 if (input->inputType() == HTMLInputElement::IMAGE)
101 return true;
102 }
103 } else if (attrName == HTMLNames::hrefAttr) {
104 // Check href attribute.
105 if (element->hasTagName(HTMLNames::linkTag)
106 || element->hasTagName(HTMLNames::aTag)
107 || element->hasTagName(HTMLNames::areaTag))
108 return true;
109 } else if (attrName == HTMLNames::actionAttr) {
110 if (element->hasTagName(HTMLNames::formTag))
111 return true;
112 } else if (attrName == HTMLNames::backgroundAttr) {
113 if (element->hasTagName(HTMLNames::bodyTag)
114 || element->hasTagName(HTMLNames::tableTag)
115 || element->hasTagName(HTMLNames::trTag)
116 || element->hasTagName(HTMLNames::tdTag))
117 return true;
118 } else if (attrName == HTMLNames::citeAttr) {
119 if (element->hasTagName(HTMLNames::blockquoteTag)
120 || element->hasTagName(HTMLNames::qTag)
121 || element->hasTagName(HTMLNames::delTag)
122 || element->hasTagName(HTMLNames::insTag))
123 return true;
124 } else if (attrName == HTMLNames::classidAttr
125 || attrName == HTMLNames::dataAttr) {
126 if (element->hasTagName(HTMLNames::objectTag))
127 return true;
128 } else if (attrName == HTMLNames::codebaseAttr) {
129 if (element->hasTagName(HTMLNames::objectTag)
130 || element->hasTagName(HTMLNames::appletTag))
131 return true;
132 }
133 return false;
134 }
135
136 } // namespace WebKit
137