https://rokmc2014.com/addons/oembed/oembed.js?20200815152755

1/**
2 * @file oembed.js
3 * @brief javascript code for oembed addon
4 * @author XEHub ([email protected])
5 */
6(function($){
7	var protocol_re = '(https?|ftp|news|telnet|irc|mms)://';
8	var domain_re   = '(?:[\\w\\-]+\\.)+(?:[a-z]+)';
9	var max_255_re  = '(?:1[0-9]{2}|2[0-4][0-9]|25[0-5]|[1-9]?[0-9])';
10	var ip_re       = '(?:'+max_255_re+'\\.){3}'+max_255_re;
11	var port_re     = '(?::([0-9]+))?';
12	var user_re     = '(?:/~[\\w-]+)?';
13	var path_re     = '((?:/[\\w!"$-/:-@]+)*)';
14	var hash_re     = '(?:#([\\w!-@]+))?';
15
16	var url_regex = new RegExp('('+protocol_re+'('+domain_re+'|'+ip_re+'|localhost'+')'+port_re+user_re+path_re+hash_re+')', 'ig');
17
18	var OEmbed = xe.createPlugin("OEmbed", {
19		targets : [],
20		init : function() {
21			this.targets = [];
22			this.enableAutoLink = false;
23			this.castedOembedA = false;
24			this.embedSetting = [];
25			// this.embedSetting.embedMethod = 'replace';
26		},
27		API_ONREADY : function() {
28			var thisPlugin = this;
29
30			// extract target text nodes
31			this.extractTargets($('.xe_content'));
32
33			if(this.oApp.getPlugin('autolink').length)
34			{
35				this.enableAutoLink = true;
36			}
37			thisPlugin.cast('OEMBEDA');
38
39			if(!this.enableAutoLink)
40			{
41				$(this.targets).each(function(){
42					thisPlugin.cast('OEMBED', [this]);
43				});
44			}
45		},
46		API_BEFORE_AUTOLINK : function(oSender, params) {
47			var thisPlugin = this;
48			thisPlugin.cast('OEMBEDA');
49		},
50		API_AFTER_AUTOLINK : function(oSender, params) {
51			this.oembed(params[0]);
52		},
53		API_OEMBED : function(oSender, params) {
54			if(this.enableAutoLink) return;
55			var thisPlugin = this;
56
57			var textNode = params[0];
58			if(!$(textNode).parent().length || $(textNode).parent().get(0).nodeName.toLowerCase() == 'a')
59			{
60				this.oembed($(textNode));
61				return;
62			}
63			var content  = textNode.nodeValue;
64			var dummy    = $('<span>');
65
66			content = content.replace(/</g, '&lt;').replace(/>/g, '&gt;');
67			content = content.replace(url_regex, '<a href="$1" target="_blank">$1</a>');
68
69			$(textNode).before(dummy);
70			$(textNode).replaceWith(content);
71			params[0] = dummy.next('a');
72			dummy.remove();
73
74			this.oembed(params[0]);
75		},
76		API_OEMBEDA : function(oSender, params) {
77			if(this.castedOembedA) return;
78			var thisPlugin = this;
79
80			this.castedOembedA = true;
81
82			$('.read_body a').not('_oembed').each(function(){
83				thisPlugin.oembed($(this));
84			});
85		},
86		oembed : function(target) {
87			var thisPlugin = this;
88
89			if(!this.embedSetting.maxWidth)
90			{
91				this.embedSetting.maxWidth = $('.xe_content').width();
92			}
93
94			if(!target) return;
95			if(target && target.nodeType == 3) target = $(target);
96
97			target.oembed(null, thisPlugin.embedSetting).addClass('_oembed');
98		},
99		extractTargets : function(obj) {
100			var thisPlugin = this;
101			var wrap = $('.xe_content', obj);
102			if(wrap.length) {
103				this.extractTargets(wrap);
104				return;
105			}
106
107			$(obj)
108			.contents()
109			.each(function(){
110				var node_name = this.nodeName.toLowerCase();
111				if($.inArray(node_name, ['a', 'pre', 'xml', 'textarea', 'input', 'select', 'option', 'code', 'script', 'style', 'iframe', 'button', 'img', 'embed', 'object', 'ins']) != -1) return;
112
113				// FIX ME : When this meanless code wasn't executed, url_regex do not run correctly. why?
114				url_regex.exec('');
115
116				if(this.nodeType == 3) { // text node
117					var content = this.nodeValue;
118
119					if(content.length < 5) return;
120
121					if(!/(http|https|ftp|news|telnet|irc|mms):\/\//i.test(content)) return;
122
123					thisPlugin.targets.push(this);
124				} else {
125					thisPlugin.extractTargets(this);
126				}
127			});
128		}
129	});
130
131	xe.registerPlugin(new OEmbed());
132})(jQuery);