103 lines
2.8 KiB
JavaScript
103 lines
2.8 KiB
JavaScript
(function($, block) {
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// Entity formatters for use by tweet list
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var entity_formatters = {
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'urls': function(e) {
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return '<a href="' + e.url + '">' + e.display_url + '</a>';
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},
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'user_mentions': function(e) {
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return '<a href="https://twitter.com/'+e.screen_name+'">@'+e.screen_name+'</a>';
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},
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'hashtags': function(e) {
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return '<a href="https://twitter.com/hashtag/'+e.text+'?src=hash">#' +e.text+'</a>';
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},
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'default': function(e) {
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return '{ENTITY}';
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}
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};
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// processes entities for the given message and entity object
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var process_entities = function(message, entities) {
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// short-circuit failure mode
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if(typeof entities === 'undefined') {
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return message;
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}
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// build list of entities sorted on starting index
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var es = [];
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$.each(entities, function(t, ts) {
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$.each(ts, function(_, e) {
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e['type'] = t;
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es.push(e);
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});
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});
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es.sort(function(a,b) {
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return a['indices'][0] - b['indices'][0];
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});
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// process entities one-by-one in order of appearance
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var marker = 0;
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var result = "";
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for(var i in es) {
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var e = es[i];
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var start = e['indices'][0];
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var stop = e['indices'][1];
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//copy string content
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result += message.substring(marker, start);
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//process entity (through formatter or no-op function)
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var formatter = entity_formatters[e.type]
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|| function(e) { return message.substring(start,stop) };
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result += formatter(e);
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// update marker location
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marker = stop;
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}
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// append tail of message
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result += message.substring(marker, message.length);
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return result;
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}
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block.fn.tweets = function(config) {
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var options = $.extend({
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memory: 20
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}, config);
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// store list for later
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// var $list = $("div.tweetcontainer");
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var $list = document.querySelector("#latest")
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window.sessionStorage.setItem('tweets', JSON.stringify([]));
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// register default handler for handling tweet data
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this.actions(function(e, tweet){
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tweets = window.sessionStorage.getItem('tweets');
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tweets = JSON.parse(tweets);
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tweets.push(tweet);
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var localMemory = 100;
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if(tweets.length >= localMemory) {
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tweets.shift();
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}
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window.sessionStorage.setItem('tweets', JSON.stringify(tweets));
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if(!paused) {
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// remove tweets
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$list.replaceChildren();
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var displayTweets = tweets.reverse().slice(0, options.memory).reverse();
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for (i = 0; i < Math.min(options.memory-1, displayTweets.length); i++){
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$list.prepend(tweetCell(displayTweets[i]));
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}
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}
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});
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return this.$element;
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};
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})(jQuery, block);
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