| /* |
| * Copyright (C) 2010 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "bindings/core/v8/V8ErrorHandler.h" |
| |
| #include "bindings/core/v8/ScriptController.h" |
| #include "bindings/core/v8/V8Binding.h" |
| #include "bindings/core/v8/V8ErrorEvent.h" |
| #include "bindings/core/v8/V8PrivateProperty.h" |
| #include "bindings/core/v8/V8ScriptRunner.h" |
| #include "core/dom/ExecutionContext.h" |
| |
| namespace blink { |
| |
| V8ErrorHandler::V8ErrorHandler(bool isInline, ScriptState* scriptState) |
| : V8EventListener(isInline, scriptState) {} |
| |
| v8::Local<v8::Value> V8ErrorHandler::callListenerFunction( |
| ScriptState* scriptState, |
| v8::Local<v8::Value> jsEvent, |
| Event* event) { |
| ASSERT(!jsEvent.IsEmpty()); |
| if (!event->hasInterface(EventNames::ErrorEvent)) |
| return V8EventListener::callListenerFunction(scriptState, jsEvent, event); |
| |
| ErrorEvent* errorEvent = static_cast<ErrorEvent*>(event); |
| if (errorEvent->world() && errorEvent->world() != &world()) |
| return v8::Null(isolate()); |
| |
| v8::Local<v8::Object> listener = |
| getListenerObject(scriptState->getExecutionContext()); |
| if (listener.IsEmpty() || !listener->IsFunction()) |
| return v8::Null(isolate()); |
| |
| v8::Local<v8::Function> callFunction = |
| v8::Local<v8::Function>::Cast(listener); |
| v8::Local<v8::Object> thisValue = scriptState->context()->Global(); |
| |
| v8::Local<v8::Object> eventObject; |
| if (!jsEvent->ToObject(scriptState->context()).ToLocal(&eventObject)) |
| return v8::Null(isolate()); |
| auto privateError = V8PrivateProperty::getErrorEventError(isolate()); |
| v8::Local<v8::Value> error = |
| privateError.getOrUndefined(scriptState->context(), eventObject); |
| if (error->IsUndefined()) |
| error = v8::Null(isolate()); |
| |
| v8::Local<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}; |
| v8::TryCatch tryCatch(isolate()); |
| tryCatch.SetVerbose(true); |
| v8::MaybeLocal<v8::Value> result; |
| if (scriptState->getExecutionContext()->isWorkerGlobalScope()) { |
| result = V8ScriptRunner::callFunction( |
| callFunction, scriptState->getExecutionContext(), thisValue, |
| WTF_ARRAY_LENGTH(parameters), parameters, isolate()); |
| } else { |
| result = V8ScriptRunner::callFunction( |
| callFunction, scriptState->getExecutionContext(), thisValue, |
| WTF_ARRAY_LENGTH(parameters), parameters, isolate()); |
| } |
| v8::Local<v8::Value> returnValue; |
| if (!result.ToLocal(&returnValue)) |
| return v8::Null(isolate()); |
| |
| return returnValue; |
| } |
| |
| // static |
| void V8ErrorHandler::storeExceptionOnErrorEventWrapper( |
| ScriptState* scriptState, |
| ErrorEvent* event, |
| v8::Local<v8::Value> data, |
| v8::Local<v8::Object> creationContext) { |
| v8::Local<v8::Value> wrappedEvent = |
| toV8(event, creationContext, scriptState->isolate()); |
| if (wrappedEvent.IsEmpty()) |
| return; |
| |
| DCHECK(wrappedEvent->IsObject()); |
| auto privateError = |
| V8PrivateProperty::getErrorEventError(scriptState->isolate()); |
| privateError.set(scriptState->context(), wrappedEvent.As<v8::Object>(), data); |
| } |
| |
| // static |
| v8::Local<v8::Value> V8ErrorHandler::loadExceptionFromErrorEventWrapper( |
| ScriptState* scriptState, |
| ErrorEvent* event, |
| v8::Local<v8::Object> creationContext) { |
| v8::Local<v8::Value> wrappedEvent = |
| toV8(event, creationContext, scriptState->isolate()); |
| if (wrappedEvent.IsEmpty() || !wrappedEvent->IsObject()) |
| return v8::Local<v8::Value>(); |
| |
| DCHECK(wrappedEvent->IsObject()); |
| auto privateError = |
| V8PrivateProperty::getErrorEventError(scriptState->isolate()); |
| v8::Local<v8::Value> error = privateError.getOrUndefined( |
| scriptState->context(), wrappedEvent.As<v8::Object>()); |
| if (error->IsUndefined()) |
| return v8::Local<v8::Value>(); |
| return error; |
| } |
| |
| bool V8ErrorHandler::shouldPreventDefault(v8::Local<v8::Value> returnValue) { |
| return returnValue->IsBoolean() && returnValue.As<v8::Boolean>()->Value(); |
| } |
| |
| } // namespace blink |