1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Stefan Schimanski (1Stein@gmx.de)
* Copyright (C) 2004, 2005, 2006, 2008, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "HTMLEmbedElement.h"
#include "Attribute.h"
#include "CSSHelper.h"
#include "CSSPropertyNames.h"
#include "Frame.h"
#include "HTMLDocument.h"
#include "HTMLImageLoader.h"
#include "HTMLNames.h"
#include "HTMLObjectElement.h"
#include "RenderEmbeddedObject.h"
#include "RenderImage.h"
#include "RenderWidget.h"
#include "ScriptController.h"
#include "Settings.h"
namespace WebCore {
using namespace HTMLNames;
inline HTMLEmbedElement::HTMLEmbedElement(const QualifiedName& tagName, Document* document)
: HTMLPlugInImageElement(tagName, document)
, m_needWidgetUpdate(false)
{
ASSERT(hasTagName(embedTag));
}
PassRefPtr<HTMLEmbedElement> HTMLEmbedElement::create(const QualifiedName& tagName, Document* document)
{
return adoptRef(new HTMLEmbedElement(tagName, document));
}
static inline RenderWidget* findWidgetRenderer(const Node* n)
{
if (!n->renderer())
do
n = n->parentNode();
while (n && !n->hasTagName(objectTag));
if (n && n->renderer() && n->renderer()->isWidget())
return toRenderWidget(n->renderer());
return 0;
}
RenderWidget* HTMLEmbedElement::renderWidgetForJSBindings() const
{
document()->updateLayoutIgnorePendingStylesheets();
return findWidgetRenderer(this);
}
bool HTMLEmbedElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const
{
if (attrName == hiddenAttr) {
result = eUniversal;
return false;
}
return HTMLPlugInElement::mapToEntry(attrName, result);
}
void HTMLEmbedElement::parseMappedAttribute(Attribute* attr)
{
const AtomicString& value = attr->value();
if (attr->name() == typeAttr) {
m_serviceType = value.string().lower();
size_t pos = m_serviceType.find(";");
if (pos != notFound)
m_serviceType = m_serviceType.left(pos);
if (!isImageType() && m_imageLoader)
m_imageLoader.clear();
} else if (attr->name() == codeAttr)
m_url = deprecatedParseURL(value.string());
else if (attr->name() == srcAttr) {
m_url = deprecatedParseURL(value.string());
if (renderer() && isImageType()) {
if (!m_imageLoader)
m_imageLoader = adoptPtr(new HTMLImageLoader(this));
m_imageLoader->updateFromElementIgnoringPreviousError();
}
} else if (attr->name() == hiddenAttr) {
if (equalIgnoringCase(value.string(), "yes") || equalIgnoringCase(value.string(), "true")) {
// FIXME: Not dynamic, since we add this but don't remove it, but it may be OK for now
// that this rarely-used attribute won't work properly if you remove it.
addCSSLength(attr, CSSPropertyWidth, "0");
addCSSLength(attr, CSSPropertyHeight, "0");
}
} else if (attr->name() == nameAttr) {
if (inDocument() && document()->isHTMLDocument()) {
HTMLDocument* document = static_cast<HTMLDocument*>(this->document());
document->removeNamedItem(m_name);
document->addNamedItem(value);
}
m_name = value;
} else
HTMLPlugInElement::parseMappedAttribute(attr);
}
bool HTMLEmbedElement::rendererIsNeeded(RenderStyle* style)
{
if (isImageType())
return HTMLPlugInElement::rendererIsNeeded(style);
Frame* frame = document()->frame();
if (!frame)
return false;
Node* p = parentNode();
if (p && p->hasTagName(objectTag)) {
ASSERT(p->renderer());
return false;
}
#if ENABLE(DASHBOARD_SUPPORT)
// Workaround for <rdar://problem/6642221>.
if (Settings* settings = frame->settings()) {
if (settings->usesDashboardBackwardCompatibilityMode())
return true;
}
#endif
return HTMLPlugInElement::rendererIsNeeded(style);
}
RenderObject* HTMLEmbedElement::createRenderer(RenderArena* arena, RenderStyle*)
{
if (isImageType())
return new (arena) RenderImage(this);
return new (arena) RenderEmbeddedObject(this);
}
void HTMLEmbedElement::attach()
{
m_needWidgetUpdate = true;
bool isImage = isImageType();
if (!isImage)
queuePostAttachCallback(&HTMLPlugInElement::updateWidgetCallback, this);
HTMLPlugInElement::attach();
if (isImage && renderer()) {
if (!m_imageLoader)
m_imageLoader = adoptPtr(new HTMLImageLoader(this));
m_imageLoader->updateFromElement();
if (renderer())
toRenderImage(renderer())->setCachedImage(m_imageLoader->image());
}
}
void HTMLEmbedElement::updateWidget()
{
document()->updateStyleIfNeeded();
if (m_needWidgetUpdate && renderer() && !isImageType())
toRenderEmbeddedObject(renderer())->updateWidget(true);
}
void HTMLEmbedElement::insertedIntoDocument()
{
if (document()->isHTMLDocument())
static_cast<HTMLDocument*>(document())->addNamedItem(m_name);
String width = getAttribute(widthAttr);
String height = getAttribute(heightAttr);
if (!width.isEmpty() || !height.isEmpty()) {
Node* n = parent();
while (n && !n->hasTagName(objectTag))
n = n->parent();
if (n) {
if (!width.isEmpty())
static_cast<HTMLObjectElement*>(n)->setAttribute(widthAttr, width);
if (!height.isEmpty())
static_cast<HTMLObjectElement*>(n)->setAttribute(heightAttr, height);
}
}
HTMLPlugInElement::insertedIntoDocument();
}
void HTMLEmbedElement::removedFromDocument()
{
if (document()->isHTMLDocument())
static_cast<HTMLDocument*>(document())->removeNamedItem(m_name);
HTMLPlugInElement::removedFromDocument();
}
void HTMLEmbedElement::attributeChanged(Attribute* attr, bool preserveDecls)
{
HTMLPlugInElement::attributeChanged(attr, preserveDecls);
if ((attr->name() == widthAttr || attr->name() == heightAttr) && !attr->isEmpty()) {
Node* n = parent();
while (n && !n->hasTagName(objectTag))
n = n->parent();
if (n)
static_cast<HTMLObjectElement*>(n)->setAttribute(attr->name(), attr->value());
}
}
bool HTMLEmbedElement::isURLAttribute(Attribute* attr) const
{
return attr->name() == srcAttr;
}
const QualifiedName& HTMLEmbedElement::imageSourceAttributeName() const
{
return srcAttr;
}
void HTMLEmbedElement::addSubresourceAttributeURLs(ListHashSet<KURL>& urls) const
{
HTMLPlugInImageElement::addSubresourceAttributeURLs(urls);
addSubresourceURL(urls, document()->completeURL(getAttribute(srcAttr)));
}
}
|
