зеркало из https://github.com/mozilla/gecko-dev.git
41 строка
1.2 KiB
C++
41 строка
1.2 KiB
C++
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=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 http://mozilla.org/MPL/2.0/. */
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#include "nsRefreshObservers.h"
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#include "PresShell.h"
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namespace mozilla {
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OneShotPostRefreshObserver::OneShotPostRefreshObserver(PresShell* aPresShell,
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Action&& aAction)
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: mPresShell(aPresShell), mAction(std::move(aAction)) {}
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OneShotPostRefreshObserver::~OneShotPostRefreshObserver() = default;
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void OneShotPostRefreshObserver::DidRefresh() {
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if (!mPresShell) {
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MOZ_ASSERT_UNREACHABLE(
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"Post-refresh observer fired again after failed attempt at "
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"unregistering it");
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return;
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}
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mAction(mPresShell);
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if (!mPresShell->RemovePostRefreshObserver(this)) {
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MOZ_ASSERT_UNREACHABLE(
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"Unable to unregister post-refresh observer! Leaking it instead of "
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"leaving garbage registered");
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// Graceful handling, just in case...
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mPresShell = nullptr;
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mAction = Action();
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return;
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}
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delete this;
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}
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} // namespace mozilla
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