| /* |
| * 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 "third_party/blink/renderer/bindings/core/v8/v8_error_handler.h" |
| |
| #include "third_party/blink/renderer/bindings/core/v8/script_controller.h" |
| #include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h" |
| #include "third_party/blink/renderer/bindings/core/v8/v8_error_event.h" |
| #include "third_party/blink/renderer/bindings/core/v8/v8_script_runner.h" |
| #include "third_party/blink/renderer/core/execution_context/execution_context.h" |
| #include "third_party/blink/renderer/platform/bindings/v8_private_property.h" |
| |
| namespace blink { |
| |
| V8ErrorHandler::V8ErrorHandler(bool is_inline, ScriptState* script_state) |
| : V8EventListenerOrEventHandler(is_inline, script_state) {} |
| |
| v8::Local<v8::Value> V8ErrorHandler::CallListenerFunction( |
| ScriptState* script_state, |
| v8::Local<v8::Value> js_event, |
| Event* event) { |
| DCHECK(!js_event.IsEmpty()); |
| if (!event->HasInterface(EventNames::ErrorEvent)) { |
| return V8EventListenerOrEventHandler::CallListenerFunction(script_state, |
| js_event, event); |
| } |
| |
| ErrorEvent* error_event = static_cast<ErrorEvent*>(event); |
| v8::Local<v8::Context> context = script_state->GetContext(); |
| ExecutionContext* execution_context = ToExecutionContext(context); |
| v8::Local<v8::Object> listener = GetListenerObjectInternal(execution_context); |
| if (listener.IsEmpty() || !listener->IsFunction()) |
| return v8::Null(GetIsolate()); |
| |
| v8::Local<v8::Function> call_function = |
| v8::Local<v8::Function>::Cast(listener); |
| v8::Local<v8::Object> this_value = context->Global(); |
| |
| // The error attribute should be initialized to null for dedicated workers. |
| // https://html.spec.whatwg.org/multipage/workers.html#runtime-script-errors-2 |
| ScriptValue error = error_event->error(script_state); |
| v8::Local<v8::Value> error_value = |
| (error.IsEmpty() || |
| error_event->target()->InterfaceName() == EventTargetNames::Worker) |
| ? v8::Local<v8::Value>(v8::Null(GetIsolate())) |
| : error.V8Value(); |
| |
| v8::Local<v8::Value> parameters[5] = { |
| V8String(GetIsolate(), error_event->message()), |
| V8String(GetIsolate(), error_event->filename()), |
| v8::Integer::New(GetIsolate(), error_event->lineno()), |
| v8::Integer::New(GetIsolate(), error_event->colno()), error_value}; |
| v8::TryCatch try_catch(GetIsolate()); |
| try_catch.SetVerbose(true); |
| |
| v8::MaybeLocal<v8::Value> result = V8ScriptRunner::CallFunction( |
| call_function, execution_context, this_value, base::size(parameters), |
| parameters, GetIsolate()); |
| v8::Local<v8::Value> return_value; |
| if (!result.ToLocal(&return_value)) |
| return v8::Null(GetIsolate()); |
| |
| return return_value; |
| } |
| |
| bool V8ErrorHandler::ShouldPreventDefault(v8::Local<v8::Value> return_value, |
| Event* event) { |
| // Special event handling should be done here according to HTML Standard: |
| // https://html.spec.whatwg.org/multipage/webappapis.html#the-event-handler-processing-algorithm |
| // We do not need to check current target of event because it must be window |
| // or worker on calling this method. |
| if (event->HasInterface(EventNames::ErrorEvent) && event->type() == "error") |
| return return_value->IsBoolean() && return_value.As<v8::Boolean>()->Value(); |
| return return_value->IsBoolean() && !return_value.As<v8::Boolean>()->Value(); |
| } |
| |
| } // namespace blink |