1/*
2 * Copyright (C) 2007-2009 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 "V8Document.h"
33
34#include "CanvasRenderingContext.h"
35#include "Document.h"
36#include "ExceptionCode.h"
37#include "Node.h"
38#include "TouchList.h"
39#include "XPathNSResolver.h"
40#include "XPathResult.h"
41
42#include "V8Binding.h"
43#include "V8CanvasRenderingContext2D.h"
44#include "V8CustomXPathNSResolver.h"
45#include "V8DOMImplementation.h"
46#include "V8DOMWrapper.h"
47#include "V8HTMLDocument.h"
48#include "V8IsolatedContext.h"
49#include "V8Node.h"
50#include "V8Proxy.h"
51#include "V8Touch.h"
52#include "V8TouchList.h"
53#if ENABLE(WEBGL)
54#include "V8WebGLRenderingContext.h"
55#endif
56#include "V8XPathNSResolver.h"
57#include "V8XPathResult.h"
58
59#if ENABLE(SVG)
60#include "V8SVGDocument.h"
61#endif
62
63#include <wtf/RefPtr.h>
64
65namespace WebCore {
66
67#if ENABLE(XPATH)
68v8::Handle<v8::Value> V8Document::evaluateCallback(const v8::Arguments& args)
69{
70    INC_STATS("DOM.Document.evaluate()");
71
72    RefPtr<Document> document = V8Document::toNative(args.Holder());
73    ExceptionCode ec = 0;
74    String expression = toWebCoreString(args[0]);
75    RefPtr<Node> contextNode;
76    if (V8Node::HasInstance(args[1]))
77        contextNode = V8Node::toNative(v8::Handle<v8::Object>::Cast(args[1]));
78
79    RefPtr<XPathNSResolver> resolver = V8DOMWrapper::getXPathNSResolver(args[2]);
80    if (!resolver && !args[2]->IsNull() && !args[2]->IsUndefined())
81        return throwError(TYPE_MISMATCH_ERR);
82
83    int type = toInt32(args[3]);
84    RefPtr<XPathResult> inResult;
85    if (V8XPathResult::HasInstance(args[4]))
86        inResult = V8XPathResult::toNative(v8::Handle<v8::Object>::Cast(args[4]));
87
88    v8::TryCatch exceptionCatcher;
89    RefPtr<XPathResult> result = document->evaluate(expression, contextNode.get(), resolver.get(), type, inResult.get(), ec);
90    if (exceptionCatcher.HasCaught())
91        return throwError(exceptionCatcher.Exception());
92
93    if (ec)
94        return throwError(ec);
95
96    return toV8(result.release());
97}
98#endif
99
100v8::Handle<v8::Value> V8Document::getCSSCanvasContextCallback(const v8::Arguments& args)
101{
102    INC_STATS("DOM.Document.getCSSCanvasContext");
103    v8::Handle<v8::Object> holder = args.Holder();
104    Document* imp = V8Document::toNative(holder);
105    String contextId = toWebCoreString(args[0]);
106    String name = toWebCoreString(args[1]);
107    int width = toInt32(args[2]);
108    int height = toInt32(args[3]);
109    CanvasRenderingContext* result = imp->getCSSCanvasContext(contextId, name, width, height);
110    if (!result)
111        return v8::Undefined();
112    if (result->is2d())
113        return toV8(static_cast<CanvasRenderingContext2D*>(result));
114#if ENABLE(WEBGL)
115    else if (result->is3d())
116        return toV8(static_cast<WebGLRenderingContext*>(result));
117#endif // ENABLE(WEBGL)
118    ASSERT_NOT_REACHED();
119    return v8::Undefined();
120}
121
122v8::Handle<v8::Value> toV8(Document* impl, bool forceNewObject)
123{
124    if (!impl)
125        return v8::Null();
126    if (impl->isHTMLDocument())
127        return toV8(static_cast<HTMLDocument*>(impl), forceNewObject);
128#if ENABLE(SVG)
129    if (impl->isSVGDocument())
130        return toV8(static_cast<SVGDocument*>(impl), forceNewObject);
131#endif
132    v8::Handle<v8::Object> wrapper = V8Document::wrap(impl, forceNewObject);
133    if (wrapper.IsEmpty())
134        return wrapper;
135    if (!V8IsolatedContext::getEntered()) {
136        if (V8Proxy* proxy = V8Proxy::retrieve(impl->frame()))
137            proxy->windowShell()->updateDocumentWrapper(wrapper);
138    }
139    return wrapper;
140}
141
142#if ENABLE(TOUCH_EVENTS)
143v8::Handle<v8::Value> V8Document::createTouchListCallback(const v8::Arguments& args)
144{
145    RefPtr<TouchList> touchList = TouchList::create();
146
147    for (int i = 0; i < args.Length(); i++) {
148        Touch* touch = V8DOMWrapper::isWrapperOfType(args[i], &V8Touch::info) ? V8Touch::toNative(args[i]->ToObject()) : 0;
149        touchList->append(touch);
150    }
151
152    return toV8(touchList.release());
153}
154#endif
155
156} // namespace WebCore
157