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      1 /*
      2  * Copyright (C) 2008 Apple 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
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "JSCustomPositionCallback.h"
     28 
     29 #if ENABLE(GEOLOCATION)
     30 
     31 #include "Frame.h"
     32 #include "JSGeoposition.h"
     33 #include "ScriptController.h"
     34 #include <runtime/JSLock.h>
     35 
     36 namespace WebCore {
     37 
     38 using namespace JSC;
     39 
     40 JSCustomPositionCallback::JSCustomPositionCallback(JSObject* callback, JSDOMGlobalObject* globalObject)
     41     : PositionCallback(globalObject->scriptExecutionContext())
     42     , m_data(callback, globalObject)
     43 {
     44 }
     45 
     46 void JSCustomPositionCallback::handleEvent(Geoposition* geoposition)
     47 {
     48     // ActiveDOMObject will null our pointer to the ScriptExecutionContext when it goes away.
     49     if (!scriptExecutionContext())
     50         return;
     51 
     52     RefPtr<JSCustomPositionCallback> protect(this);
     53 
     54     JSC::JSLock lock(SilenceAssertionsOnly);
     55     ExecState* exec = m_data.globalObject()->globalExec();
     56     MarkedArgumentBuffer args;
     57     args.append(toJS(exec, deprecatedGlobalObjectForPrototype(exec), geoposition));
     58     m_data.invokeCallback(args);
     59 }
     60 
     61 } // namespace WebCore
     62 
     63 #endif // ENABLE(GEOLOCATION)
     64