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/platform/external/webkit/WebCore/bindings/v8/custom/V8EventSourceConstructor.cpp

https://github.com/aharish/totoro-gb-opensource-update2
C++ | 79 lines | 33 code | 14 blank | 32 comment | 5 complexity | 61f8f4f2aed9c3fc68c42b80757add67 MD5 | raw file
 1/*
 2 * Copyright (C) 2010 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
33#if ENABLE(EVENTSOURCE)
34#include "V8EventSource.h"
35
36#include "EventSource.h"
37#include "Frame.h"
38#include "V8Binding.h"
39#include "V8Proxy.h"
40#include "V8Utilities.h"
41#include "WorkerContext.h"
42#include "WorkerContextExecutionProxy.h"
43
44namespace WebCore {
45
46v8::Handle<v8::Value> V8EventSource::constructorCallback(const v8::Arguments& args)
47{
48    INC_STATS("DOM.EventSource.Constructor");
49
50    if (!args.IsConstructCall())
51        return throwError("DOM object constructor cannot be called as a function.", V8Proxy::TypeError);
52
53    // Expect one parameter.
54    // Allocate an EventSource object as its internal field.
55    ScriptExecutionContext* context = getScriptExecutionContext();
56    if (!context)
57        return throwError("EventSource constructor's associated context is not available", V8Proxy::ReferenceError);
58    if (args.Length() != 1)
59        return throwError("EventSource constructor wrong number of parameters", V8Proxy::TypeError);
60
61    ExceptionCode ec = 0;
62    String url = toWebCoreString(args[0]);
63
64    RefPtr<EventSource> eventSource = EventSource::create(url, context, ec);
65    
66    if (ec)
67        return throwError(ec);
68
69    V8DOMWrapper::setDOMWrapper(args.Holder(), V8ClassIndex::ToInt(V8ClassIndex::EVENTSOURCE), eventSource.get());
70
71    // Add object to the wrapper map.
72    eventSource->ref();
73    V8DOMWrapper::setJSWrapperForActiveDOMObject(eventSource.get(), v8::Persistent<v8::Object>::New(args.Holder()));
74    return args.Holder();
75}
76
77} // namespace WebCore
78
79#endif // ENABLE(EVENTSOURCE)