gecko-dev/dom/webscheduling/TaskSignal.h

64 строки
1.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=2:tabstop=2:
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_TaskSignal_h
#define mozilla_dom_TaskSignal_h
#include "mozilla/DOMEventTargetHelper.h"
#include "mozilla/dom/AbortSignal.h"
#include "mozilla/dom/WebTaskSchedulingBinding.h"
#include "WebTaskScheduler.h"
namespace mozilla::dom {
class TaskSignal : public AbortSignal {
public:
TaskSignal(nsIGlobalObject* aGlobal, TaskPriority aPriority)
: AbortSignal(aGlobal, false, JS::UndefinedHandleValue),
mPriority(aPriority),
mPriorityChanging(false) {}
IMPL_EVENT_HANDLER(prioritychange);
TaskPriority Priority() const { return mPriority; }
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override {
return TaskSignal_Binding::Wrap(aCx, this, aGivenProto);
}
void SetPriority(TaskPriority aPriority) { mPriority = aPriority; }
bool IsTaskSignal() const override { return true; }
bool PriorityChanging() const { return mPriorityChanging; }
void SetPriorityChanging(bool aPriorityChanging) {
mPriorityChanging = aPriorityChanging;
}
void SetWebTaskScheduler(WebTaskScheduler* aScheduler) {
mSchedulers.AppendElement(aScheduler);
}
void RunPriorityChangeAlgorithms() {
for (const WeakPtr<WebTaskScheduler>& scheduler : mSchedulers) {
scheduler->RunTaskSignalPriorityChange(this);
}
}
private:
TaskPriority mPriority;
bool mPriorityChanging;
nsTArray<WeakPtr<WebTaskScheduler>> mSchedulers;
~TaskSignal() = default;
};
} // namespace mozilla::dom
#endif