forked from mirrors/gecko-dev
56 lines
2.1 KiB
C++
56 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_DOM_WORKERS_EVENTWITHOPTIONSRUNNABLE_H_
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#define MOZILLA_DOM_WORKERS_EVENTWITHOPTIONSRUNNABLE_H_
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#include "WorkerCommon.h"
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#include "WorkerRunnable.h"
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#include "mozilla/dom/StructuredCloneHolder.h"
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namespace mozilla {
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class DOMEventTargetHelper;
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namespace dom {
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class Event;
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class EventTarget;
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class Worker;
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class WorkerPrivate;
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// Cargo-culted from MesssageEventRunnable.
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// Intended to be used for the idiom where arbitrary options are transferred to
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// the worker thread (with optional transfer functions), which are then used to
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// build an event, which is then fired on the global worker scope.
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class EventWithOptionsRunnable : public WorkerDebuggeeRunnable,
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public StructuredCloneHolder {
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public:
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explicit EventWithOptionsRunnable(
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Worker& aWorker, const char* aName = "EventWithOptionsRunnable");
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void InitOptions(JSContext* aCx, JS::Handle<JS::Value> aOptions,
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const Sequence<JSObject*>& aTransferable, ErrorResult& aRv);
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// Called on the worker thread. The event returned will be fired on the
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// worker's global scope. If a StrongWorkerRef needs to be retained, the
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// implementation can do so with the WorkerPrivate.
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virtual already_AddRefed<Event> BuildEvent(
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JSContext* aCx, nsIGlobalObject* aGlobal, EventTarget* aTarget,
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JS::Handle<JS::Value> aOptions) = 0;
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// Called on the worker thread
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virtual void OptionsDeserializeFailed(ErrorResult& aRv) {}
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protected:
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virtual ~EventWithOptionsRunnable();
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private:
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bool WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override;
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bool BuildAndFireEvent(JSContext* aCx, WorkerPrivate* aWorkerPrivate,
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DOMEventTargetHelper* aTarget);
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};
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} // namespace dom
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} // namespace mozilla
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#endif // MOZILLA_DOM_WORKERS_EVENTWITHOPTIONSRUNNABLE_H_
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