138 lines
3.2 KiB
JavaScript
138 lines
3.2 KiB
JavaScript
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// Livestamp.js / v2.0.0 / (c) 2015 Matt Bradley / MIT License
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(function (plugin) {
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if (typeof define === 'function' && define.amd) {
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// AMD. Register as an anonymous module.
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define(['jquery', 'moment'], plugin);
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} else {
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// Browser globals
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plugin(jQuery, moment);
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}
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}(function($, moment) {
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var updateInterval = 1e3,
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paused = false,
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$livestamps = $([]),
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init = function() {
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livestampGlobal.resume();
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},
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prep = function($el, timestamp) {
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var oldData = $el.data('livestampdata');
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if (typeof timestamp == 'number')
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timestamp *= 1e3;
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$el.removeAttr('data-livestamp')
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.removeData('livestamp');
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timestamp = moment(timestamp);
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if (moment.isMoment(timestamp) && !isNaN(+timestamp)) {
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var newData = $.extend({ }, { 'original': $el.contents() }, oldData);
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newData.moment = moment(timestamp);
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$el.data('livestampdata', newData).empty();
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$livestamps.push($el[0]);
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}
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},
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run = function() {
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if (paused) return;
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livestampGlobal.update();
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setTimeout(run, updateInterval);
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},
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livestampGlobal = {
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update: function() {
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$('[data-livestamp]').each(function() {
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var $this = $(this);
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prep($this, $this.data('livestamp'));
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});
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var toRemove = [];
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$livestamps.each(function() {
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var $this = $(this),
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data = $this.data('livestampdata');
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if (data === undefined)
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toRemove.push(this);
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else if (moment.isMoment(data.moment)) {
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var from = $this.html(),
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to = data.moment.fromNow();
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if (from != to) {
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var e = $.Event('change.livestamp');
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$this.trigger(e, [from, to]);
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if (!e.isDefaultPrevented())
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$this.html(to);
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}
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}
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});
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$livestamps = $livestamps.not(toRemove);
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delete $livestamps.prevObject
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},
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pause: function() {
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paused = true;
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},
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resume: function() {
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paused = false;
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run();
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},
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interval: function(interval) {
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if (interval === undefined)
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return updateInterval;
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updateInterval = interval;
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}
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},
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livestampLocal = {
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add: function($el, timestamp) {
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if (typeof timestamp == 'number')
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timestamp *= 1e3;
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timestamp = moment(timestamp);
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if (moment.isMoment(timestamp) && !isNaN(+timestamp)) {
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$el.each(function() {
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prep($(this), timestamp);
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});
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livestampGlobal.update();
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}
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return $el;
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},
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destroy: function($el) {
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$livestamps = $livestamps.not($el);
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$el.each(function() {
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var $this = $(this),
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data = $this.data('livestampdata');
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if (data === undefined)
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return $el;
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$this
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.html(data.original ? data.original : '')
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.removeData('livestampdata');
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});
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return $el;
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},
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isLivestamp: function($el) {
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return $el.data('livestampdata') !== undefined;
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}
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};
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$.livestamp = livestampGlobal;
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$(init);
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$.fn.livestamp = function(method, options) {
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if (!livestampLocal[method]) {
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options = method;
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method = 'add';
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}
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return livestampLocal[method](this, options);
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};
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}));
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