зеркало из https://github.com/mozilla/gecko-dev.git
41 строка
1.2 KiB
C++
41 строка
1.2 KiB
C++
/* -*- 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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#if !defined(AutoplayPolicy_h_)
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#define AutoplayPolicy_h_
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#include "mozilla/NotNull.h"
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class nsIDocument;
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namespace mozilla {
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namespace dom {
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class HTMLMediaElement;
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/**
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* AutoplayPolicy is used to manage autoplay logic for all kinds of media,
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* including MediaElement, Web Audio and Web Speech.
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*
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* Autoplay could be disable by turn off the pref "media.autoplay.enabled".
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* Once user disable autoplay, media could only be played if one of following
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* conditions is true.
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* 1) Owner document is activated by user gestures
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* We restrict user gestures to "mouse click", "keyboard press" and "touch".
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* 2) Muted media content or video without audio content
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*/
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class AutoplayPolicy
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{
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public:
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static bool IsMediaElementAllowedToPlay(NotNull<HTMLMediaElement*> aElement);
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private:
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static bool IsDocumentAllowedToPlay(nsIDocument* aDoc);
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};
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} // namespace dom
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} // namespace mozilla
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#endif |