1 /*
2 * Copyright (C) 2007, 2008, 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 "V8HTMLDocument.h"
33
34 #include "Frame.h"
35 #include "HTMLAllCollection.h"
36 #include "HTMLDocument.h"
37 #include "HTMLCollection.h"
38 #include "HTMLIFrameElement.h"
39 #include "HTMLNames.h"
40 #include "V8Binding.h"
41 #include "V8DOMWindow.h"
42 #include "V8HTMLAllCollection.h"
43 #include "V8HTMLCollection.h"
44 #include "V8IsolatedContext.h"
45 #include "V8Node.h"
46 #include "V8Proxy.h"
47 #include <wtf/RefPtr.h>
48 #include <wtf/StdLibExtras.h>
49
50 namespace WebCore {
51
WrapInShadowObject(v8::Local<v8::Object> wrapper,Node * impl)52 v8::Local<v8::Object> V8HTMLDocument::WrapInShadowObject(v8::Local<v8::Object> wrapper, Node* impl)
53 {
54 DEFINE_STATIC_LOCAL(v8::Persistent<v8::FunctionTemplate>, shadowTemplate, ());
55 if (shadowTemplate.IsEmpty()) {
56 shadowTemplate = v8::Persistent<v8::FunctionTemplate>::New(v8::FunctionTemplate::New());
57 if (shadowTemplate.IsEmpty())
58 return v8::Local<v8::Object>();
59 shadowTemplate->SetClassName(v8::String::New("HTMLDocument"));
60 shadowTemplate->Inherit(V8HTMLDocument::GetTemplate());
61 shadowTemplate->InstanceTemplate()->SetInternalFieldCount(V8HTMLDocument::internalFieldCount);
62 }
63
64 v8::Local<v8::Function> shadowConstructor = shadowTemplate->GetFunction();
65 if (shadowConstructor.IsEmpty())
66 return v8::Local<v8::Object>();
67
68 v8::Local<v8::Object> shadow = shadowConstructor->NewInstance();
69 if (shadow.IsEmpty())
70 return v8::Local<v8::Object>();
71 V8DOMWrapper::setDOMWrapper(shadow, &V8HTMLDocument::info, impl);
72 shadow->SetPrototype(wrapper);
73 return shadow;
74 }
75
GetNamedProperty(HTMLDocument * htmlDocument,const AtomicString & key)76 v8::Handle<v8::Value> V8HTMLDocument::GetNamedProperty(HTMLDocument* htmlDocument, const AtomicString& key)
77 {
78 if (!htmlDocument->hasNamedItem(key.impl()) && !htmlDocument->hasExtraNamedItem(key.impl()))
79 return v8::Handle<v8::Value>();
80
81 RefPtr<HTMLCollection> items = htmlDocument->documentNamedItems(key);
82 if (!items->length())
83 return v8::Handle<v8::Value>();
84
85 if (items->length() == 1) {
86 Node* node = items->firstItem();
87 Frame* frame = 0;
88 if (node->hasTagName(HTMLNames::iframeTag) && (frame = static_cast<HTMLIFrameElement*>(node)->contentFrame()))
89 return toV8(frame->domWindow());
90
91 return toV8(node);
92 }
93
94 return toV8(items.release());
95 }
96
97 // HTMLDocument ----------------------------------------------------------------
98
99 // Concatenates "args" to a string. If args is empty, returns empty string.
100 // Firefox/Safari/IE support non-standard arguments to document.write, ex:
101 // document.write("a", "b", "c") --> document.write("abc")
102 // document.write() --> document.write("")
writeHelperGetString(const v8::Arguments & args)103 static String writeHelperGetString(const v8::Arguments& args)
104 {
105 String str = "";
106 for (int i = 0; i < args.Length(); ++i)
107 str += toWebCoreString(args[i]);
108 return str;
109 }
110
writeCallback(const v8::Arguments & args)111 v8::Handle<v8::Value> V8HTMLDocument::writeCallback(const v8::Arguments& args)
112 {
113 INC_STATS("DOM.HTMLDocument.write()");
114 HTMLDocument* htmlDocument = V8HTMLDocument::toNative(args.Holder());
115 Frame* frame = V8Proxy::retrieveFrameForCallingContext();
116 htmlDocument->write(writeHelperGetString(args), frame ? frame->document() : NULL);
117 return v8::Undefined();
118 }
119
writelnCallback(const v8::Arguments & args)120 v8::Handle<v8::Value> V8HTMLDocument::writelnCallback(const v8::Arguments& args)
121 {
122 INC_STATS("DOM.HTMLDocument.writeln()");
123 HTMLDocument* htmlDocument = V8HTMLDocument::toNative(args.Holder());
124 Frame* frame = V8Proxy::retrieveFrameForCallingContext();
125 htmlDocument->writeln(writeHelperGetString(args), frame ? frame->document() : NULL);
126 return v8::Undefined();
127 }
128
openCallback(const v8::Arguments & args)129 v8::Handle<v8::Value> V8HTMLDocument::openCallback(const v8::Arguments& args)
130 {
131 INC_STATS("DOM.HTMLDocument.open()");
132 HTMLDocument* htmlDocument = V8HTMLDocument::toNative(args.Holder());
133
134 if (args.Length() > 2) {
135 if (Frame* frame = htmlDocument->frame()) {
136 // Fetch the global object for the frame.
137 v8::Local<v8::Context> context = V8Proxy::context(frame);
138 // Bail out if we cannot get the context.
139 if (context.IsEmpty())
140 return v8::Undefined();
141 v8::Local<v8::Object> global = context->Global();
142 // Get the open property of the global object.
143 v8::Local<v8::Value> function = global->Get(v8::String::New("open"));
144 // If the open property is not a function throw a type error.
145 if (!function->IsFunction()) {
146 throwError("open is not a function");
147 return v8::Undefined();
148 }
149 // Wrap up the arguments and call the function.
150 v8::Local<v8::Value>* params = new v8::Local<v8::Value>[args.Length()];
151 for (int i = 0; i < args.Length(); i++)
152 params[i] = args[i];
153
154 V8Proxy* proxy = V8Proxy::retrieve(frame);
155 ASSERT(proxy);
156
157 v8::Local<v8::Value> result = proxy->callFunction(v8::Local<v8::Function>::Cast(function), global, args.Length(), params);
158 delete[] params;
159 return result;
160 }
161 }
162
163 Frame* frame = V8Proxy::retrieveFrameForCallingContext();
164 htmlDocument->open(frame ? frame->document() : NULL);
165 // Return the document.
166 return args.Holder();
167 }
168
allAccessorGetter(v8::Local<v8::String> name,const v8::AccessorInfo & info)169 v8::Handle<v8::Value> V8HTMLDocument::allAccessorGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
170 {
171 INC_STATS("DOM.HTMLDocument.all._get");
172 v8::Handle<v8::Object> holder = info.Holder();
173 HTMLDocument* htmlDocument = V8HTMLDocument::toNative(holder);
174 return toV8(htmlDocument->all());
175 }
176
allAccessorSetter(v8::Local<v8::String> name,v8::Local<v8::Value> value,const v8::AccessorInfo & info)177 void V8HTMLDocument::allAccessorSetter(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::AccessorInfo& info)
178 {
179 // Just emulate a normal JS behaviour---install a property on this.
180 info.This()->ForceSet(name, value);
181 }
182
toV8(HTMLDocument * impl,bool forceNewObject)183 v8::Handle<v8::Value> toV8(HTMLDocument* impl, bool forceNewObject)
184 {
185 if (!impl)
186 return v8::Null();
187 v8::Handle<v8::Object> wrapper = V8HTMLDocument::wrap(impl, forceNewObject);
188 if (wrapper.IsEmpty())
189 return wrapper;
190 if (!V8IsolatedContext::getEntered()) {
191 if (V8Proxy* proxy = V8Proxy::retrieve(impl->frame()))
192 proxy->windowShell()->updateDocumentWrapper(wrapper);
193 }
194 return wrapper;
195 }
196
197 } // namespace WebCore
198