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 #include "bindings/core/v8/V8ErrorHandler.h" 33 34 #include "bindings/core/v8/ScriptController.h" 35 #include "bindings/core/v8/V8Binding.h" 36 #include "bindings/core/v8/V8ErrorEvent.h" 37 #include "bindings/core/v8/V8HiddenValue.h" 38 #include "bindings/core/v8/V8ScriptRunner.h" 39 #include "core/dom/ExecutionContext.h" 40 #include "core/events/ErrorEvent.h" 41 #include "core/frame/LocalFrame.h" 42 43 namespace blink { 44 45 V8ErrorHandler::V8ErrorHandler(v8::Local<v8::Object> listener, bool isInline, ScriptState* scriptState) 46 : V8EventListener(listener, isInline, scriptState) 47 { 48 } 49 50 v8::Local<v8::Value> V8ErrorHandler::callListenerFunction(v8::Handle<v8::Value> jsEvent, Event* event) 51 { 52 if (!event->hasInterface(EventNames::ErrorEvent)) 53 return V8EventListener::callListenerFunction(jsEvent, event); 54 55 ErrorEvent* errorEvent = static_cast<ErrorEvent*>(event); 56 57 if (errorEvent->world() && errorEvent->world() != &world()) 58 return v8::Null(isolate()); 59 60 v8::Local<v8::Object> listener = getListenerObject(scriptState()->executionContext()); 61 v8::Local<v8::Value> returnValue; 62 if (!listener.IsEmpty() && listener->IsFunction()) { 63 v8::Local<v8::Function> callFunction = v8::Local<v8::Function>::Cast(listener); 64 v8::Local<v8::Object> thisValue = scriptState()->context()->Global(); 65 66 v8::Local<v8::Value> error = V8HiddenValue::getHiddenValue(isolate(), jsEvent->ToObject(), V8HiddenValue::error(isolate())); 67 if (error.IsEmpty()) 68 error = v8::Null(isolate()); 69 70 v8::Handle<v8::Value> parameters[5] = { v8String(isolate(), errorEvent->message()), v8String(isolate(), errorEvent->filename()), v8::Integer::New(isolate(), errorEvent->lineno()), v8::Integer::New(isolate(), errorEvent->colno()), error }; 71 v8::TryCatch tryCatch; 72 tryCatch.SetVerbose(true); 73 if (scriptState()->executionContext()->isWorkerGlobalScope()) 74 returnValue = V8ScriptRunner::callFunction(callFunction, scriptState()->executionContext(), thisValue, WTF_ARRAY_LENGTH(parameters), parameters, isolate()); 75 else 76 returnValue = ScriptController::callFunction(scriptState()->executionContext(), callFunction, thisValue, WTF_ARRAY_LENGTH(parameters), parameters, isolate()); 77 } 78 return returnValue; 79 } 80 81 // static 82 void V8ErrorHandler::storeExceptionOnErrorEventWrapper(ErrorEvent* event, v8::Handle<v8::Value> data, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) 83 { 84 v8::Local<v8::Value> wrappedEvent = toV8(event, creationContext, isolate); 85 if (!wrappedEvent.IsEmpty()) { 86 ASSERT(wrappedEvent->IsObject()); 87 V8HiddenValue::setHiddenValue(isolate, v8::Local<v8::Object>::Cast(wrappedEvent), V8HiddenValue::error(isolate), data); 88 } 89 } 90 91 bool V8ErrorHandler::shouldPreventDefault(v8::Local<v8::Value> returnValue) 92 { 93 return returnValue->IsBoolean() && returnValue->BooleanValue(); 94 } 95 96 } // namespace blink 97