summaryrefslogtreecommitdiffstats
path: root/ksvg/impl/SVGScriptElementImpl.cc
blob: 230adf259a4a392d00add1387180e44506b734a8 (plain)
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
/*
    Copyright (C) 2001-2003 KSVG Team
    This file is part of the KDE project

    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 <kdebug.h>

#include <kio/job.h>
#include <kfilterdev.h>
#include <tqbuffer.h>

#include "SVGDocumentImpl.h"
#include "SVGAnimatedStringImpl.h"
#include "SVGScriptElementImpl.moc"

using namespace KSVG;

#include "SVGScriptElementImpl.lut.h"
#include "ksvg_scriptinterpreter.h"
#include "ksvg_bridge.h"
#include "ksvg_ecma.h"

SVGScriptElementImpl::SVGScriptElementImpl(DOM::ElementImpl *impl) : TQObject(), SVGElementImpl(impl), SVGURIReferenceImpl(), SVGExternalResourcesRequiredImpl()
{
	KSVG_EMPTY_FLAGS

	m_job = 0;
	m_added = false;
}

SVGScriptElementImpl::~SVGScriptElementImpl()
{
}

void SVGScriptElementImpl::setType(const DOM::DOMString &type)
{
	setAttribute("type", type);
}

DOM::DOMString SVGScriptElementImpl::type() const
{
	return getAttribute("type");
}

void SVGScriptElementImpl::setAttributes()
{
	SVGElementImpl::setAttributes();

	// Spec: provide a default type
	if(KSVG_TOKEN_NOT_PARSED(Type))
		KSVG_SET_ALT_ATTRIBUTE(Type, "text/ecmascript")

	// Remote downloading
	TQString href = m_href->baseVal().string();

	if(!href.isEmpty())
	{
		KURL url(ownerDoc()->baseUrl(), href);

		if(m_job == 0)
			m_job = KIO::get(url, false, false);

		connect(m_job, TQT_SIGNAL(data(KIO::Job *, const TQByteArray &)), this, TQT_SLOT(slotData(KIO::Job *, const TQByteArray &)));
		connect(m_job, TQT_SIGNAL(result(KIO::Job *)), this, TQT_SLOT(slotResult(KIO::Job *)));
	}
}

void SVGScriptElementImpl::slotData(KIO::Job *, const TQByteArray &data)
{
	TQDataStream dataStream(m_data, IO_WriteOnly | IO_Append);
	dataStream.writeRawBytes(data.data(), data.size());
}

void SVGScriptElementImpl::slotResult(KIO::Job *)
{
	m_job = 0;

	// Append a NULL terminator so we don't die
	m_data.resize(m_data.size() + 1);
	m_data[m_data.size() - 1] = '\0';

	TQBuffer buf(m_data);
	TQIODevice *dev = KFilterDev::device(&buf, "application/x-gzip", false);
	TQByteArray contents;
	if(dev->open(IO_ReadOnly))
		contents = dev->readAll();
	delete dev;
	m_text = TQString::fromUtf8(contents.data());

	m_data.resize(0);
}

bool SVGScriptElementImpl::canExecuteScript()
{
	if(!m_added)
	{
		m_added = true;
		m_text += collectText();
	}

	if(m_text.isEmpty() && !getAttribute("href").isNull() && !getAttribute("href").string().isEmpty())
		return false;

	return true;
}

bool SVGScriptElementImpl::executeScript(DOM::Node node)
{
	return SVGScriptElementImpl::executeScript(node, ownerDoc(), m_text);
}

bool SVGScriptElementImpl::executeScript(DOM::Node node, SVGDocumentImpl *document, const TQString &text)
{
#ifdef KJS_VERBOSE
    kdDebug(6070) << "SVGScriptElementImpl::executeScript n=" << node.nodeName().string().latin1() << "(" << (node.isNull() ? 0 : node.nodeType()) << ") " << text << endl;
#endif
	KSVGEcma *ecmaEngine = document->ecmaEngine();

	if(!ecmaEngine->initialized())
		ecmaEngine->setup();

	KJS::Value thisNode = node.isNull() ? ecmaEngine->globalObject() : getDOMNode(ecmaEngine->globalExec(), node);

	KJS::UString code(text);
	KJS::Completion comp = ecmaEngine->evaluate(code, thisNode);

	// TODO: If that's needed find a better solution which 
	// doesn't cause endless loops if the func, specified in
	// onerror="..." isn't yet available
	// onerror support
//	if(comp.complType() == Throw)
//		document->rootElement()->dispatchEvent(SVGEventImpl::ERROR_EVENT, false, false);		

	return (comp.complType() == KJS::Normal) || (comp.complType() == KJS::ReturnValue);
}

// Ecma stuff

/*
@namespace KSVG
@begin SVGScriptElementImpl::s_hashTable 2
 type	SVGScriptElementImpl::Type  DontDelete
@end
*/

Value SVGScriptElementImpl::getValueProperty(ExecState *, int token) const
{
	switch(token)
	{
		case Type:
			return String(type());
		default:
			kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
			return Undefined();
	}
}

void SVGScriptElementImpl::putValueProperty(KJS::ExecState *exec, int token, const KJS::Value &value, int)
{
	switch(token)
	{
		case Type:
			setType(value.toString(exec).string());
			break;
		default:
			kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl;
	}
}

// vim:ts=4:noet