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
65 namespace WebCore {
66
67 #if ENABLE(XPATH)
evaluateCallback(const v8::Arguments & args)68 v8::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
getCSSCanvasContextCallback(const v8::Arguments & args)100 v8::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
toV8(Document * impl,bool forceNewObject)122 v8::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)
createTouchListCallback(const v8::Arguments & args)143 v8::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