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Oinktube/view/js/jquery.lazy/plugins/jquery.lazy.av.js
Daniel 2a9630258f https://github.com/WWBN/AVideo/issues/6345#issuecomment-1067056556
Also check the lang in case insensitive
2022-03-14 14:28:38 -03:00

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JavaScript

/*!
* jQuery & Zepto Lazy - AV Plugin - v1.4
* http://jquery.eisbehr.de/lazy/
*
* Copyright 2012 - 2017, Daniel 'Eisbehr' Kern
*
* Dual licensed under the MIT and GPL-2.0 licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl-2.0.html
*/
;(function($) {
// loads audio and video tags including tracks by two ways, like:
// <audio>
// <data-src src="audio.ogg" type="video/ogg"></data-src>
// <data-src src="audio.mp3" type="video/mp3"></data-src>
// </audio>
// <video data-poster="poster.jpg">
// <data-src src="video.ogv" type="video/ogv"></data-src>
// <data-src src="video.webm" type="video/webm"></data-src>
// <data-src src="video.mp4" type="video/mp4"></data-src>
// <data-track kind="captions" src="captions.vtt" srclang="en"></data-track>
// <data-track kind="descriptions" src="descriptions.vtt" srclang="en"></data-track>
// <data-track kind="subtitles" src="subtitles.vtt" srclang="de"></data-track>
// </video>
//
// or:
// <audio data-src="audio.ogg|video/ogg,video.mp3|video/mp3"></video>
// <video data-poster="poster.jpg" data-src="video.ogv|video/ogv,video.webm|video/webm,video.mp4|video/mp4">
// <data-track kind="captions" src="captions.vtt" srclang="en"></data-track>
// <data-track kind="descriptions" src="descriptions.vtt" srclang="en"></data-track>
// <data-track kind="subtitles" src="subtitles.vtt" srclang="de"></data-track>
// </video>
$.lazy(["av", "audio", "video"], ["audio", "video"], function(element, response) {
var elementTagName = element[0].tagName.toLowerCase();
if( elementTagName === "audio" || elementTagName === "video" ) {
var srcAttr = "data-src",
sources = element.find(srcAttr),
tracks = element.find("data-track"),
sourcesInError = 0,
// create on error callback for sources
onError = function() {
if( ++sourcesInError === sources.length )
response(false);
},
// create callback to handle a source or track entry
handleSource = function() {
var source = $(this),
type = source[0].tagName.toLowerCase(),
attributes = source.prop("attributes"),
target = $(type === srcAttr ? "<source>" : "<track>");
if( type === srcAttr )
target.one("error", onError);
$.each(attributes, function(index, attribute) {
target.attr(attribute.name, attribute.value);
});
source.replaceWith(target);
};
// create event for successfull load
element.one("loadedmetadata", function() {
response(true);
})
// remove default callbacks to ignore loading poster image
.off("load error")
// load poster image
.attr("poster", element.attr("data-poster"));
// load by child tags
if( sources.length )
sources.each(handleSource);
// load by attribute
else if( element.attr(srcAttr) ) {
// split for every entry by comma
$.each(element.attr(srcAttr).split(","), function(index, value) {
// split again for file and file type
var parts = value.split("|");
// create a source entry
element.append($("<source>")
.one("error", onError)
.attr({src: parts[0].trim(), type: parts[1].trim()}));
});
// remove now obsolete attribute
if( this.config("removeAttribute") )
element.removeAttr(srcAttr);
}
else {
// pass error state
// use response function for Zepto
response(false);
}
// load optional tracks
if( tracks.length )
tracks.each(handleSource);
}
else {
// pass error state
// use response function for Zepto
response(false);
}
});
})(window.jQuery || window.Zepto);