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// Copyright 2018 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 "third_party/blink/renderer/core/workers/experimental/worker_task_queue.h"
#include "third_party/blink/renderer/bindings/core/v8/serialization/serialized_script_value.h"
#include "third_party/blink/renderer/core/dom/abort_signal.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/workers/experimental/task.h"
#include "third_party/blink/renderer/core/workers/experimental/thread_pool.h"
namespace blink {
WorkerTaskQueue* WorkerTaskQueue::Create(ExecutionContext* context,
const String& type,
ExceptionState& exception_state) {
if (context->IsContextDestroyed()) {
exception_state.ThrowDOMException(DOMExceptionCode::kInvalidAccessError,
"The context provided is invalid.");
return nullptr;
}
auto* document = DynamicTo<Document>(context);
if (!document) {
exception_state.ThrowDOMException(
DOMExceptionCode::kInvalidAccessError,
"WorkerTaskQueue can only be constructed from a document.");
return nullptr;
}
DCHECK(type == "user-interaction" || type == "background");
TaskType task_type = type == "user-interaction" ? TaskType::kUserInteraction
: TaskType::kIdleTask;
return MakeGarbageCollected<WorkerTaskQueue>(document, task_type);
}
WorkerTaskQueue::WorkerTaskQueue(Document* document, TaskType task_type)
: document_(document), task_type_(task_type) {}
ScriptPromise WorkerTaskQueue::postFunction(
ScriptState* script_state,
const ScriptValue& function,
AbortSignal* signal,
const Vector<ScriptValue>& arguments) {
DCHECK(document_->IsContextThread());
DCHECK(function.IsFunction());
Task* task =
MakeGarbageCollected<Task>(ThreadPool::From(*document_), script_state,
function, arguments, task_type_);
if (signal)
signal->AddAlgorithm(WTF::Bind(&Task::cancel, WrapWeakPersistent(task)));
return task->result(script_state);
}
Task* WorkerTaskQueue::postTask(ScriptState* script_state,
const ScriptValue& function,
const Vector<ScriptValue>& arguments) {
DCHECK(document_->IsContextThread());
DCHECK(function.IsFunction());
return MakeGarbageCollected<Task>(ThreadPool::From(*document_), script_state,
function, arguments, task_type_);
}
void WorkerTaskQueue::Trace(blink::Visitor* visitor) {
ScriptWrappable::Trace(visitor);
visitor->Trace(document_);
}
} // namespace blink
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