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      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 #include "V8WindowErrorHandler.h"
     34 
     35 #include "ErrorEvent.h"
     36 #include "V8Binding.h"
     37 
     38 namespace WebCore {
     39 
     40 V8WindowErrorHandler::V8WindowErrorHandler(v8::Local<v8::Object> listener, bool isInline, const WorldContextHandle& worldContext)
     41     : V8EventListener(listener, isInline, worldContext)
     42 {
     43 }
     44 
     45 v8::Local<v8::Value> V8WindowErrorHandler::callListenerFunction(ScriptExecutionContext* context, v8::Handle<v8::Value> jsEvent, Event* event)
     46 {
     47     if (!event->isErrorEvent())
     48         return V8EventListener::callListenerFunction(context, jsEvent, event);
     49 
     50     ErrorEvent* errorEvent = static_cast<ErrorEvent*>(event);
     51     v8::Local<v8::Object> listener = getListenerObject(context);
     52     v8::Local<v8::Value> returnValue;
     53     if (!listener.IsEmpty() && listener->IsFunction()) {
     54         v8::Local<v8::Function> callFunction = v8::Local<v8::Function>::Cast(listener);
     55         v8::Local<v8::Object> thisValue = v8::Context::GetCurrent()->Global();
     56         v8::Handle<v8::Value> parameters[3] = { v8String(errorEvent->message()), v8String(errorEvent->filename()), v8::Integer::New(errorEvent->lineno()) };
     57         v8::TryCatch tryCatch;
     58         tryCatch.SetVerbose(true);
     59         returnValue = callFunction->Call(thisValue, 3, parameters);
     60         if (!tryCatch.HasCaught() && !returnValue.IsEmpty() && returnValue->IsBoolean() && !returnValue->BooleanValue())
     61             event->preventDefault();
     62     }
     63     return returnValue;
     64 }
     65 
     66 } // namespace WebCore
     67