зеркало из https://github.com/mozilla/gecko-dev.git
71 строка
1.8 KiB
C++
71 строка
1.8 KiB
C++
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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 http://mozilla.org/MPL/2.0/. */
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#include <algorithm>
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#include "mozilla/dom/IdleDeadline.h"
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#include "mozilla/dom/IdleDeadlineBinding.h"
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#include "mozilla/dom/Performance.h"
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#include "nsCOMPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsDOMNavigationTiming.h"
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#include "nsPIDOMWindow.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(IdleDeadline, mWindow)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(IdleDeadline)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(IdleDeadline)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(IdleDeadline)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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IdleDeadline::IdleDeadline(nsPIDOMWindowInner* aWindow, bool aDidTimeout,
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DOMHighResTimeStamp aDeadline)
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: mWindow(aWindow)
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, mDidTimeout(aDidTimeout)
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, mDeadline(aDeadline)
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{
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}
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IdleDeadline::~IdleDeadline()
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{
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}
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JSObject*
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IdleDeadline::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return IdleDeadlineBinding::Wrap(aCx, this, aGivenProto);
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}
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DOMHighResTimeStamp
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IdleDeadline::TimeRemaining()
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{
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if (mDidTimeout) {
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return 0.0;
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}
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RefPtr<Performance> performance = mWindow->GetPerformance();
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if (!performance) {
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// If there is no performance object the window is partially torn
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// down, so we can safely say that there is no time remaining.
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return 0.0;
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}
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return std::max(mDeadline - performance->Now(), 0.0);
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}
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bool
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IdleDeadline::DidTimeout() const
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{
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return mDidTimeout;
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}
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} // namespace dom
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} // namespace mozilla
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