mirror of
https://github.com/discourse/discourse.git
synced 2024-12-14 18:13:40 +08:00
60 lines
2.2 KiB
JavaScript
60 lines
2.2 KiB
JavaScript
|
/*! LazyYT (lazy load Youtube videos plugin) - v0.3.4 - 2014-06-30
|
||
|
|
* Usage: <div class="lazyYT" data-youtube-id="laknj093n" ratio="16:9" data-parameters="rel=0">loading...</div>
|
||
|
|
* Copyright (c) 2014 Tyler Pearson; Licensed MIT */
|
||
|
|
|
||
|
|
|
||
|
|
;(function ($) {
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
function setUp($el) {
|
||
|
|
var width = $el.data('width'),
|
||
|
|
height = $el.data('height'),
|
||
|
|
ratio = $el.data('ratio'),
|
||
|
|
id = $el.data('youtube-id'),
|
||
|
|
aspectRatio = ['16', '9'],
|
||
|
|
paddingTop = 0,
|
||
|
|
youtubeParameters = $el.data('parameters') || '';
|
||
|
|
|
||
|
|
if (typeof width === 'undefined' || typeof height === 'undefined') {
|
||
|
|
height = 0;
|
||
|
|
width = '100%';
|
||
|
|
aspectRatio = (ratio.split(":")[1] / ratio.split(":")[0]) * 100;
|
||
|
|
paddingTop = aspectRatio + '%';
|
||
|
|
}
|
||
|
|
|
||
|
|
$el.css({
|
||
|
|
'position': 'relative',
|
||
|
|
'height': height,
|
||
|
|
'width': width,
|
||
|
|
'padding-top': paddingTop,
|
||
|
|
'background': 'url(http://img.youtube.com/vi/' + id + '/hqdefault.jpg) center center no-repeat',
|
||
|
|
'cursor': 'pointer',
|
||
|
|
'background-size': 'cover'
|
||
|
|
})
|
||
|
|
.html('<p id="lazyYT-title-' + id + '" class="lazyYT-title"></p><div class="lazyYT-button"></div>')
|
||
|
|
.addClass('lazyYT-image-loaded');
|
||
|
|
|
||
|
|
$.getJSON('https://gdata.youtube.com/feeds/api/videos/' + id + '?v=2&alt=json', function (data) {
|
||
|
|
$('#lazyYT-title-' + id).text(data.entry.title.$t);
|
||
|
|
});
|
||
|
|
|
||
|
|
$el.on('click', function (e) {
|
||
|
|
e.preventDefault();
|
||
|
|
if (!$el.hasClass('lazyYT-video-loaded') && $el.hasClass('lazyYT-image-loaded')) {
|
||
|
|
$el.html('<iframe width="' + width + '" height="' + height + '" src="//www.youtube.com/embed/' + id + '?autoplay=1&' + youtubeParameters + '" style="position:absolute; top:0; left:0; width:100%; height:100%;" frameborder="0" allowfullscreen></iframe>')
|
||
|
|
.removeClass('lazyYT-image-loaded')
|
||
|
|
.addClass('lazyYT-video-loaded');
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
$.fn.lazyYT = function () {
|
||
|
|
return this.each(function () {
|
||
|
|
var $el = $(this).css('cursor', 'pointer');
|
||
|
|
setUp($el);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
}(jQuery));
|