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      1 /*
      2  * Copyright (C) 2009 Ericsson AB. All rights reserved.
      3  * Copyright (C) 2010 Apple Inc. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer
     13  *    in the documentation and/or other materials provided with the
     14  *    distribution.
     15  * 3. Neither the name of Ericsson nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this
     17  *    software without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include "config.h"
     33 
     34 #if ENABLE(EVENTSOURCE)
     35 
     36 #include "JSEventSource.h"
     37 
     38 #include "EventSource.h"
     39 #include "ExceptionCode.h"
     40 #include "ScriptExecutionContext.h"
     41 #include <runtime/Error.h>
     42 
     43 using namespace JSC;
     44 
     45 namespace WebCore {
     46 
     47 EncodedJSValue JSC_HOST_CALL JSEventSourceConstructor::constructJSEventSource(ExecState* exec)
     48 {
     49     if (exec->argumentCount() < 1)
     50         return throwVMError(exec, createSyntaxError(exec, "Not enough arguments"));
     51 
     52     UString url = exec->argument(0).toString(exec);
     53     if (exec->hadException())
     54         return JSValue::encode(JSValue());
     55 
     56     JSEventSourceConstructor* jsConstructor =  static_cast<JSEventSourceConstructor*>(exec->callee());
     57     ScriptExecutionContext* context = jsConstructor->scriptExecutionContext();
     58     if (!context)
     59         return throwVMError(exec, createReferenceError(exec, "EventSource constructor associated document is unavailable"));
     60 
     61     ExceptionCode ec = 0;
     62     RefPtr<EventSource> eventSource = EventSource::create(ustringToString(url), context, ec);
     63     if (ec) {
     64         setDOMException(exec, ec);
     65         return JSValue::encode(JSValue());
     66     }
     67 
     68     return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(), eventSource.release())));
     69 }
     70 
     71 } // namespace WebCore
     72 
     73 #endif // ENABLE(EVENTSOURCE)
     74