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// Copyright 2014 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 "core/dom/custom/V0CustomElementMicrotaskRunQueue.h"
#include "bindings/core/v8/Microtask.h"
#include "core/dom/custom/V0CustomElementAsyncImportMicrotaskQueue.h"
#include "core/dom/custom/V0CustomElementSyncMicrotaskQueue.h"
#include "core/html/imports/HTMLImportLoader.h"
namespace blink {
V0CustomElementMicrotaskRunQueue::V0CustomElementMicrotaskRunQueue()
: m_syncQueue(V0CustomElementSyncMicrotaskQueue::create()),
m_asyncQueue(V0CustomElementAsyncImportMicrotaskQueue::create()),
m_dispatchIsPending(false) {}
void V0CustomElementMicrotaskRunQueue::enqueue(
HTMLImportLoader* parentLoader,
V0CustomElementMicrotaskStep* step,
bool importIsSync) {
if (importIsSync) {
if (parentLoader)
parentLoader->microtaskQueue()->enqueue(step);
else
m_syncQueue->enqueue(step);
} else {
m_asyncQueue->enqueue(step);
}
requestDispatchIfNeeded();
}
void V0CustomElementMicrotaskRunQueue::requestDispatchIfNeeded() {
if (m_dispatchIsPending || isEmpty())
return;
Microtask::enqueueMicrotask(WTF::bind(
&V0CustomElementMicrotaskRunQueue::dispatch, wrapWeakPersistent(this)));
m_dispatchIsPending = true;
}
DEFINE_TRACE(V0CustomElementMicrotaskRunQueue) {
visitor->trace(m_syncQueue);
visitor->trace(m_asyncQueue);
}
void V0CustomElementMicrotaskRunQueue::dispatch() {
m_dispatchIsPending = false;
m_syncQueue->dispatch();
if (m_syncQueue->isEmpty())
m_asyncQueue->dispatch();
}
bool V0CustomElementMicrotaskRunQueue::isEmpty() const {
return m_syncQueue->isEmpty() && m_asyncQueue->isEmpty();
}
} // namespace blink
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