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
|
/*
* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "JSImageConstructor.h"
#include "HTMLImageElement.h"
#include "HTMLNames.h"
#include "JSHTMLImageElement.h"
#include "JSNode.h"
#include <runtime/Error.h>
using namespace JSC;
namespace WebCore {
ASSERT_CLASS_FITS_IN_CELL(JSImageConstructor);
const ClassInfo JSImageConstructor::s_info = { "ImageConstructor", &DOMConstructorWithDocument::s_info, 0, 0 };
JSImageConstructor::JSImageConstructor(ExecState* exec, JSDOMGlobalObject* globalObject)
: DOMConstructorWithDocument(JSImageConstructor::createStructure(globalObject->globalData(), globalObject->objectPrototype()), globalObject)
{
ASSERT(inherits(&s_info));
putDirect(exec->globalData(), exec->propertyNames().prototype, JSHTMLImageElementPrototype::self(exec, globalObject), None);
}
static EncodedJSValue JSC_HOST_CALL constructImage(ExecState* exec)
{
JSImageConstructor* jsConstructor = static_cast<JSImageConstructor*>(exec->callee());
Document* document = jsConstructor->document();
if (!document)
return throwVMError(exec, createReferenceError(exec, "Image constructor associated document is unavailable"));
// Calling toJS on the document causes the JS document wrapper to be
// added to the window object. This is done to ensure that JSDocument::markChildren
// will be called, which will cause the image element to be marked if necessary.
toJS(exec, jsConstructor->globalObject(), document);
int width;
int height;
int* optionalWidth = 0;
int* optionalHeight = 0;
if (exec->argumentCount() > 0) {
width = exec->argument(0).toInt32(exec);
optionalWidth = &width;
}
if (exec->argumentCount() > 1) {
height = exec->argument(1).toInt32(exec);
optionalHeight = &height;
}
return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(),
HTMLImageElement::createForJSConstructor(document, optionalWidth, optionalHeight))));
}
ConstructType JSImageConstructor::getConstructData(ConstructData& constructData)
{
constructData.native.function = constructImage;
return ConstructTypeHost;
}
} // namespace WebCore
|
