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Asynchronous Js/Css laoder
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| /** | |
| * @preserve Copyright 2015 Semen Kamenetskiy <[email protected]> | |
| */ | |
| (function (win, doc, TYPE_SCRIPT, TYPE_CSS, TYPE_HEAD, TYPE_OBJECT, TYPE_STRING, TYPE_TEXT_JS, TYPE_TEXT_CSS, REL, MEDIA, ALL) { | |
| var _elementParams = {}; | |
| _elementParams[TYPE_SCRIPT] = { | |
| async: true, | |
| type: TYPE_TEXT_JS | |
| }; | |
| _elementParams[TYPE_CSS] = { | |
| rel: REL, | |
| type: TYPE_TEXT_CSS, | |
| media: MEDIA | |
| }; | |
| /** | |
| * <head> container | |
| * @type {HTMLHeadElement} | |
| * @private | |
| */ | |
| var _head = doc.getElementsByTagName(TYPE_HEAD)[0]; | |
| /** | |
| * Load element | |
| * @param name | |
| * @param url | |
| * @returns {Node|undefined} | |
| * @private | |
| */ | |
| function _element(name, url) { | |
| /** Exit if url is not a string */ | |
| if (TYPE_STRING !== typeof(url)) { | |
| return | |
| } | |
| /** | |
| * New html element container | |
| * @type {HTMLLinkElement|HTMLScriptElement|Node} | |
| */ | |
| var element = doc.createElement(name); | |
| /** Merge element attributes */ | |
| for (var i in _elementParams[name]) { | |
| if (_elementParams[name].hasOwnProperty(i)) { | |
| element[i] = _elementParams[name][i] | |
| } | |
| } | |
| /** If element is a script */ | |
| if (TYPE_CSS === name) { | |
| element.href = url; | |
| /** | |
| * Stylesheets list | |
| * @type {Stylesheet[]} | |
| */ | |
| var _sheets = doc.styleSheets; | |
| /** | |
| * Toggle stylesheets media when loaded | |
| * @private | |
| */ | |
| function _toggleMedia() { | |
| var defined; | |
| for (var i = 0; i < _sheets.length; i++) { | |
| if (_sheets[i].href && _sheets[i].href.indexOf(url) > -1) { | |
| defined = true; | |
| } | |
| } | |
| if (defined) { | |
| element.media = ALL; | |
| } | |
| else { | |
| setTimeout(_toggleMedia, 10); | |
| } | |
| } | |
| _toggleMedia() | |
| } | |
| /** If element is a link */ | |
| else if (TYPE_SCRIPT === name) { | |
| element.src = url; | |
| } | |
| return _head.appendChild(element) | |
| } | |
| /** | |
| * Load single element or an object | |
| * @param type | |
| * @param object | |
| * @param [i] | |
| * @private | |
| */ | |
| function _getByObjectType(type, object, i) { | |
| if (TYPE_OBJECT === typeof(object)) { | |
| for (i in object) { | |
| if (object.hasOwnProperty(i)) { | |
| _element(type, object[i]) | |
| } | |
| } | |
| return | |
| } | |
| _element(type, object) | |
| } | |
| /** | |
| * Async object | |
| * @type {{js: js, css: css}} | |
| * @expose | |
| */ | |
| win.async = { | |
| /** | |
| * Load js asynchronously | |
| * @param js | |
| * @expose | |
| */ | |
| js: function (js) { | |
| _getByObjectType(TYPE_SCRIPT, js) | |
| }, | |
| /** | |
| * Load css asynchronously | |
| * @param css | |
| * @expose | |
| */ | |
| css: function (css) { | |
| _getByObjectType(TYPE_CSS, css) | |
| } | |
| } | |
| })(window, document, 'script', 'link', 'head', 'object', 'string', 'text/javascript', 'text/css', 'stylesheet', 'async', 'all'); |
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| /* | |
| Copyright 2015 Semen Kamenetskiy <[email protected]> | |
| */ | |
| (function(n,g,h,k,p,q,r,s,t,u,v,w){function d(b,e){if(r===typeof e){var c=g.createElement(b),f;for(f in a[b])a[b].hasOwnProperty(f)&&(c[f]=a[b][f]);if(k===b){var d=function(){for(var b,a=0;a<l.length;a++)l[a].href&&-1<l[a].href.indexOf(e)&&(b=!0);b?c.media=w:setTimeout(d,10)};c.href=e;var l=g.styleSheets;d()}else h===b&&(c.src=e);x.appendChild(c)}}function m(b,a){var c;if(q===typeof a)for(c in a)a.hasOwnProperty(c)&&d(b,a[c]);else d(b,a)}var a={};a[h]={async:!0,type:s};a[k]={rel:u,type:t,media:v}; | |
| var x=g.getElementsByTagName(p)[0];n.async={js:function(a){m(h,a)},css:function(a){m(k,a)}}})(window,document,"script","link","head","object","string","text/javascript","text/css","stylesheet","async","all"); |
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