1 /*

     2  * Copyright (C) 2007, 2008, 2009 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  *

     8  * 1.  Redistributions of source code must retain the above copyright

     9  *     notice, this list of conditions and the following disclaimer.

    10  * 2.  Redistributions in binary form must reproduce the above copyright

    11  *     notice, this list of conditions and the following disclaimer in the

    12  *     documentation and/or other materials provided with the distribution.

    13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

    14  *     its contributors may be used to endorse or promote products derived

    15  *     from this software without specific prior written permission.

    16  *

    17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

    18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

    20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

    21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

    22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

    23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

    24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

    26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    27  */

    28 

    29 #include "config.h"

    30 #include "JSCallbackData.h"

    31 

    32 #include "Document.h"

    33 #include "JSDOMBinding.h"

    34 #include "JSMainThreadExecState.h"

    35 

    36 using namespace JSC;

    37     

    38 namespace WebCore {

    39 

    40 void JSCallbackData::deleteData(void* context)

    41 {

    42     delete static_cast<JSCallbackData*>(context);

    43 }

    44 

    45 JSValue JSCallbackData::invokeCallback(MarkedArgumentBuffer& args, bool* raisedException)

    46 {

    47     ASSERT(callback());

    48     ASSERT(globalObject());

    49 

    50     ExecState* exec = globalObject()->globalExec();

    51     JSValue function = callback()->get(exec, Identifier(exec, "handleEvent"));

    52 

    53     CallData callData;

    54     CallType callType = getCallData(function, callData);

    55     if (callType == CallTypeNone) {

    56         callType = callback()->getCallData(callData);

    57         if (callType == CallTypeNone)

    58             return JSValue();

    59         function = callback();

    60     }

    61     

    62     globalObject()->globalData()->timeoutChecker.start();

    63     ScriptExecutionContext* context = globalObject()->scriptExecutionContext();

    64     // We will fail to get the context if the frame has been detached.

    65     if (!context)

    66         return JSValue();

    67 

    68     JSValue result = context->isDocument() 

    69         ? JSMainThreadExecState::call(exec, function, callType, callData, callback(), args)

    70         : JSC::call(exec, function, callType, callData, callback(), args);

    71     globalObject()->globalData()->timeoutChecker.stop();

    72 

    73     Document::updateStyleForAllDocuments();

    74 

    75     if (exec->hadException()) {

    76         reportCurrentException(exec);

    77         if (raisedException)

    78             *raisedException = true;

    79         return result;

    80     }

    81     

    82     return result;

    83 }

    84     

    85 } // namespace WebCore