289 lines
10 KiB
JavaScript
289 lines
10 KiB
JavaScript
/*!
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* jQuery Twitter Search Plugin
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* Examples and documentation at: http://jquery.malsup.com/twitter/
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* Copyright (c) 2010 M. Alsup
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* Version: 1.04 (15-SEP-2011)
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* Dual licensed under the MIT and GPL licenses:
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* http://www.opensource.org/licenses/mit-license.php
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* http://www.gnu.org/licenses/gpl.html
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* Requires: jQuery v1.3.2 or later
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*/
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;(function($) {
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$.fn.twitterSearch = function(options) {
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if (typeof options == 'string')
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options = { term: options };
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return this.each(function() {
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var grabFlag = false,
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grabbing = false,
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$frame = $(this), text, $text, $title, $bird, $cont, height, paused = false,
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opts = $.extend(true, {}, $.fn.twitterSearch.defaults, options || {}, $.metadata ? $frame.metadata() : {});
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opts.formatter = opts.formatter || $.fn.twitterSearch.formatter;
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opts.filter = opts.filter || $.fn.twitterSearch.filter;
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if (!opts.applyStyles) { // throw away all style defs
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for (var css in opts.css)
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opts.css[css] = {};
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}
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if (opts.title === null) // user can set to '' to suppress title
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opts.title = opts.term;
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opts.title = opts.title || '';
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text = opts.titleLink ? ('<a href="'+ opts.titleLink +'">'+ opts.title + '</a>') : ('<span>' + opts.title +'</span>');
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$text = $(text);
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if (opts.titleLink)
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$text.css(opts.css['titleLink']);
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$title = $('<div class="twitterSearchTitle"></div>').append($text).appendTo($frame).css(opts.css['title']);
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if (opts.bird) {
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$bird = $('<img class="twitterSearchBird" src="'+opts.birdSrc+'" />').appendTo($title).css(opts.css['bird']);
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if (opts.birdLink)
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$bird.wrap('<a href="'+ opts.birdLink +'"></a>');
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}
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$cont = $('<div class="twitterSearchContainter"></div>').appendTo($frame).css(opts.css['container']);
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cont = $cont[0];
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if (opts.colorExterior)
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$title.css('background-color',opts.colorExterior);
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if (opts.colorInterior)
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$cont.css('background-color',opts.colorInterior);
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$frame.css(opts.css['frame']);
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if (opts.colorExterior)
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$frame.css('border-color',opts.colorExterior);
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height = $frame.innerHeight() - $title.outerHeight();
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$cont.height(height);
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if (opts.pause)
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$cont.hover(function(){paused = true;},function(){paused = false;});
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$('<div class="twitterSearchLoading">Loading tweets..</div>').css(opts.css['loading']).appendTo($cont);
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grabTweets();
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function grabTweets() {
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var url = opts.url + opts.term;
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grabFlag = false;
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grabbing = true;
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// grab twitter stream
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$.getJSONP({
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url: url,
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timeout: 30000,
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error: function(xhr, status, e) {
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failWhale(e);
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},
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complete: function() {
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grabbing = false;
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if (opts.refreshSeconds)
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setTimeout(regrab, opts.refreshSeconds * 1000);
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},
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success: function(json) {
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if (json.error) {
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failWhale(json.error);
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return;
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}
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$cont.fadeOut('fast',function() {
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$cont.empty();
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// iterate twitter results
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$.each(json.results, function(i) {
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if (!opts.filter.call(opts, this))
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return; // skip this tweet
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var $img, $text, w,
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tweet = opts.formatter(this, opts),
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$tweet = $(tweet);
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$tweet.css(opts.css['tweet']);
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$img = $tweet.find('.twitterSearchProfileImg').css(opts.css['img']);
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$tweet.find('.twitterSearchUser').css(opts.css['user']);
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$tweet.find('.twitterSearchTime').css(opts.css['time']);
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$tweet.find('a').css(opts.css['a']);
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$tweet.appendTo($cont);
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$text = $tweet.find('.twitterSearchText').css(opts.css['text']);
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if (opts.avatar) {
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w = $img.outerWidth() + parseInt($tweet.css('paddingLeft'));
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$text.css('paddingLeft', w);
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}
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});
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$cont.fadeIn('fast');
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if (json.results.length < 2) {
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if (opts.refreshSeconds)
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setTimeout(grabTweets, opts.refreshSeconds * 1000);
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return;
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}
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// stage first animation
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setTimeout(go, opts.timeout);
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});
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}
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});
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};
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function regrab() {
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grabFlag = true;
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}
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function failWhale(msg) {
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var $fail = $('<div class="twitterSearchFail">' + msg + '</div>').css(opts.css['fail']);
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$cont.empty().append($fail);
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};
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function go() {
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if (paused || grabbing) {
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setTimeout(go, 500);
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return;
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}
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var h, $el = $cont.children(':first'), el = $el[0];
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$el.animate(opts.animOut, opts.animOutSpeed, function() {
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h = $el.outerHeight();
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$el.animate({ marginTop: -h }, opts.animInSpeed, function() {
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$el.css({ marginTop: 0, opacity: 1 });
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/*@cc_on
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try { el.style.removeAttribute('filter'); } // ie cleartype fix
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catch(smother) {}
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@*/
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$el.css(opts.css['tweet']).show().appendTo($cont);
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setTimeout(grabFlag ? grabTweets : go, opts.timeout);
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});
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});
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}
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});
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};
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$.fn.twitterSearch.filter = function(tweet) {
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return true;
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};
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$.fn.twitterSearch.formatter = function(json, opts) {
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var str, pretty,
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text = json.text;
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if (opts.anchors) {
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text = json.text.replace(/(http:\/\/\S+)/g, '<a href="$1">$1</a>');
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text = text.replace(/\@(\w+)/g, '<a href="http://twitter.com/$1">@$1</a>');
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}
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str = '<div class="twitterSearchTweet">';
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if (opts.avatar)
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str += '<img class="twitterSearchProfileImg" src="' + json.profile_image_url + '" />';
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str += '<div><span class="twitterSearchUser"><a href="http://www.twitter.com/'+ json.from_user+'/status/'+ json.id_str +'">'
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+ json.from_user + '</a></span>';
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pretty = prettyDate(json.created_at);
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if (opts.time && pretty)
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str += ' <span class="twitterSearchTime">('+ pretty +')</span>'
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str += '<div class="twitterSearchText">' + text + '</div></div></div>';
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return str;
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};
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$.fn.twitterSearch.defaults = {
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url: 'http://search.twitter.com/search.json?callback=?&q=',
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anchors: true, // true or false (enable embedded links in tweets)
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animOutSpeed: 500, // speed of animation for top tweet when removed
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animInSpeed: 500, // speed of scroll animation for moving tweets up
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animOut: { opacity: 0 }, // animation of top tweet when it is removed
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applyStyles: true, // true or false (apply default css styling or not)
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avatar: true, // true or false (show or hide twitter profile images)
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bird: true, // true or false (show or hide twitter bird image)
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birdLink: false, // url that twitter bird image should like to
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birdSrc: 'http://cloud.github.com/downloads/malsup/twitter/tweet.gif', // twitter bird image
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colorExterior: null, // css override of frame border-color and title background-color
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colorInterior: null, // css override of container background-color
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filter: null, // callback fn to filter tweets: fn(tweetJson) { /* return false to skip tweet */ }
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formatter: null, // callback fn to build tweet markup
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pause: false, // true or false (pause on hover)
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refreshSeconds: 0, // number of seconds to wait before polling for newer tweets
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term: '', // twitter search term
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time: true, // true or false (show or hide the time that the tweet was sent)
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timeout: 4000, // delay betweet tweet scroll
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title: null, // title text to display when frame option is true (default = 'term' text)
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titleLink: null, // url for title link
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css: {
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// default styling
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a: { textDecoration: 'none', color: '#3B5998' },
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bird: { width: '50px', height: '20px', position: 'absolute', left: '-30px', top: '-20px', border: 'none' },
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container: { overflow: 'hidden', backgroundColor: '', height: '600px' },
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fail: { background: '#6cc5c3 url(http://cloud.github.com/downloads/malsup/twitter/failwhale.png) no-repeat 50% 50%', height: '100%', padding: '10px' },
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frame: { border: '0px solid #C2CFF1', borderRadius: '0px', '-moz-border-radius': '0px', '-webkit-border-radius': '0px' },
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tweet: { padding: '5px 10px', clear: 'left' },
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img: { 'float': 'left', margin: '5px', width: '48px', height: '48px' },
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loading: { padding: '20px', textAlign: 'center', color: '#888' },
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text: {},
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time: { fontSize: 'smaller', color: '#888' },
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title: { 'display': 'none'},
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titleLink: { textDecoration: 'none', color: '#3B5998' },
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user: { fontWeight: 'bold' }
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}
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};
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// fn to handle jsonp with timeouts and errors
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// hat tip to Ricardo Tomasi for the timeout logic
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$.getJSONP = function(s) {
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s.dataType = 'jsonp';
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$.ajax(s);
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// figure out what the callback fn is
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var $script = $(document.getElementsByTagName('head')[0].firstChild);
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var url = $script.attr('src') || '';
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var cb = (url.match(/callback=(\w+)/)||[])[1];
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if (!cb)
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return; // bail
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var t = 0, cbFn = window[cb];
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$script[0].onerror = function(e) {
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$script.remove();
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handleError(s, {}, "error", e);
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clearTimeout(t);
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};
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if (!s.timeout)
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return;
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window[cb] = function(json) {
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clearTimeout(t);
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cbFn(json);
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cbFn = null;
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};
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t = setTimeout(function() {
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$script.remove();
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handleError(s, {}, "timeout");
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if (cbFn)
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window[cb] = function(){};
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}, s.timeout);
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function handleError(s, xhr, msg, e) {
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s.error && s.error.call(s.context, xhr, msg, e);
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s.global && $.event.trigger("ajaxError", [xhr, s, e || msg]);
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s.complete && s.complete.call(s.context, xhr, e || msg);
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}
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};
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/*
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* JavaScript Pretty Date
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* Copyright (c) 2008 John Resig (jquery.com)
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* Licensed under the MIT license.
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*/
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// converts ISO time to casual time
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function prettyDate(time){
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var date = new Date((time || "").replace(/-/g,"/").replace(/TZ/g," ")),
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diff = (((new Date()).getTime() - date.getTime()) / 1000),
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day_diff = Math.floor(diff / 86400);
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if ( isNaN(day_diff) || day_diff < 0 || day_diff >= 31 )
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return;
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var v = day_diff == 0 && (
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diff < 60 && "just now" ||
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diff < 120 && "1 minute ago" ||
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diff < 3600 && Math.floor( diff / 60 ) + " minutes ago" ||
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diff < 7200 && "1 hour ago" ||
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diff < 86400 && Math.floor( diff / 3600 ) + " hours ago") ||
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day_diff == 1 && "Yesterday" ||
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day_diff < 7 && day_diff + " days ago" ||
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day_diff < 31 && Math.ceil( day_diff / 7 ) + " weeks ago";
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if (!v)
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window.console && console.log(time);
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return v ? v : '';
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}
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})(jQuery);
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