1 /**
2 * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 *
19 */
20
21 #include "config.h"
22
23 #if ENABLE(WML)
24 #include "WMLImageElement.h"
25
26 #include "Attribute.h"
27 #include "CSSPropertyNames.h"
28 #include "CSSValueKeywords.h"
29 #include "HTMLElement.h"
30 #include "HTMLNames.h"
31 #include "RenderImage.h"
32 #include "WMLNames.h"
33 #include "WMLVariables.h"
34
35 namespace WebCore {
36
37 using namespace WMLNames;
38
WMLImageElement(const QualifiedName & tagName,Document * doc)39 WMLImageElement::WMLImageElement(const QualifiedName& tagName, Document* doc)
40 : WMLElement(tagName, doc)
41 , m_imageLoader(this)
42 , m_useFallbackAttribute(false)
43 {
44 }
45
create(const QualifiedName & tagName,Document * document)46 PassRefPtr<WMLImageElement> WMLImageElement::create(const QualifiedName& tagName, Document* document)
47 {
48 return adoptRef(new WMLImageElement(tagName, document));
49 }
50
~WMLImageElement()51 WMLImageElement::~WMLImageElement()
52 {
53 }
54
mapToEntry(const QualifiedName & attrName,MappedAttributeEntry & result) const55 bool WMLImageElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const
56 {
57 if (attrName == HTMLNames::widthAttr ||
58 attrName == HTMLNames::heightAttr ||
59 attrName == HTMLNames::vspaceAttr ||
60 attrName == HTMLNames::hspaceAttr) {
61 result = eUniversal;
62 return false;
63 }
64
65 if (attrName == HTMLNames::alignAttr) {
66 result = eReplaced;
67 return false;
68 }
69
70 return WMLElement::mapToEntry(attrName, result);
71 }
72
parseMappedAttribute(Attribute * attr)73 void WMLImageElement::parseMappedAttribute(Attribute* attr)
74 {
75 const QualifiedName& attrName = attr->name();
76
77 if (attrName == HTMLNames::altAttr) {
78 if (renderer() && renderer()->isImage())
79 toRenderImage(renderer())->updateAltText();
80 } else if (attrName == HTMLNames::srcAttr || attrName == localsrcAttr)
81 m_imageLoader.updateFromElementIgnoringPreviousError();
82 else if (attrName == HTMLNames::widthAttr)
83 addCSSLength(attr, CSSPropertyWidth, attr->value());
84 else if (attrName == HTMLNames::heightAttr)
85 addCSSLength(attr, CSSPropertyHeight, attr->value());
86 else if (attrName == HTMLNames::vspaceAttr) {
87 addCSSLength(attr, CSSPropertyMarginTop, attr->value());
88 addCSSLength(attr, CSSPropertyMarginBottom, attr->value());
89 } else if (attrName == HTMLNames::hspaceAttr) {
90 addCSSLength(attr, CSSPropertyMarginLeft, attr->value());
91 addCSSLength(attr, CSSPropertyMarginRight, attr->value());
92 } else if (attrName == HTMLNames::alignAttr)
93 HTMLElement::addHTMLAlignmentToStyledElement(this, attr);
94 else
95 WMLElement::parseMappedAttribute(attr);
96 }
97
attach()98 void WMLImageElement::attach()
99 {
100 WMLElement::attach();
101
102 if (renderer() && renderer()->isImage() && m_imageLoader.haveFiredBeforeLoadEvent()) {
103 RenderImage* imageObj = toRenderImage(renderer());
104 RenderImageResource* renderImageResource = imageObj->imageResource();
105 if (renderImageResource->hasImage())
106 return;
107 renderImageResource->setCachedImage(m_imageLoader.image());
108
109 // If we have no image at all because we have no src attribute, set
110 // image height and width for the alt text instead.
111 if (!m_imageLoader.image() && !imageObj->cachedImage())
112 imageObj->setImageSizeForAltText();
113 }
114 }
115
createRenderer(RenderArena * arena,RenderStyle *)116 RenderObject* WMLImageElement::createRenderer(RenderArena* arena, RenderStyle*)
117 {
118 RenderImage* image = new (arena) RenderImage(this);
119 image->setImageResource(RenderImageResource::create());
120 return image;
121 }
122
insertedIntoDocument()123 void WMLImageElement::insertedIntoDocument()
124 {
125 // If we have been inserted from a renderer-less document,
126 // our loader may have not fetched the image, so do it now.
127 if (!m_imageLoader.image())
128 m_imageLoader.updateFromElement();
129
130 WMLElement::insertedIntoDocument();
131 }
132
isURLAttribute(Attribute * attr) const133 bool WMLImageElement::isURLAttribute(Attribute* attr) const
134 {
135 return attr->name() == HTMLNames::srcAttr
136 || attr->name() == localsrcAttr;
137 }
138
imageSourceAttributeName() const139 const QualifiedName& WMLImageElement::imageSourceAttributeName() const
140 {
141 // Spec: Any 'localsrc' parameter specified takes precedence over the
142 // image specified in the src parameter.
143 if (hasAttribute(localsrcAttr) && !m_useFallbackAttribute)
144 return localsrcAttr;
145
146 return HTMLNames::srcAttr;
147 }
148
altText() const149 String WMLImageElement::altText() const
150 {
151 return substituteVariableReferences(getAttribute(HTMLNames::altAttr), document());
152 }
153
154 }
155
156 #endif
157