| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "platform/bindings/CallbackFunctionBase.h" |
| |
| namespace blink { |
| |
| CallbackFunctionBase::CallbackFunctionBase( |
| v8::Local<v8::Function> callback_function) { |
| DCHECK(!callback_function.IsEmpty()); |
| |
| callback_relevant_script_state_ = |
| ScriptState::From(callback_function->CreationContext()); |
| v8::Isolate* isolate = callback_relevant_script_state_->GetIsolate(); |
| |
| callback_function_.Set(isolate, callback_function); |
| incumbent_script_state_ = ScriptState::From(isolate->GetIncumbentContext()); |
| } |
| |
| void CallbackFunctionBase::TraceWrappers( |
| const ScriptWrappableVisitor* visitor) const { |
| visitor->TraceWrappers(callback_function_); |
| } |
| |
| V8PersistentCallbackFunctionBase::V8PersistentCallbackFunctionBase( |
| CallbackFunctionBase* callback_function) |
| : callback_function_(callback_function) { |
| v8_function_.Reset(callback_function_->GetIsolate(), |
| callback_function_->callback_function_.Get()); |
| } |
| |
| void V8PersistentCallbackFunctionBase::Trace(blink::Visitor* visitor) { |
| visitor->Trace(callback_function_); |
| } |
| |
| } // namespace blink |
