133 lines
3.6 KiB
JavaScript
133 lines
3.6 KiB
JavaScript
/*
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A simple, lightweight jQuery plugin for creating sortable tables.
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https://github.com/kylefox/jquery-tablesort
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Version 0.0.11
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*/
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(function($) {
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$.tablesort = function ($table, settings) {
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var self = this;
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this.$table = $table;
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this.$thead = this.$table.find('thead');
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this.settings = $.extend({}, $.tablesort.defaults, settings);
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this.$sortCells = this.$thead.length > 0 ? this.$thead.find('th:not(.no-sort)') : this.$table.find('th:not(.no-sort)');
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this.$sortCells.on('click.tablesort', function() {
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self.sort($(this));
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});
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this.index = null;
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this.$th = null;
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this.direction = null;
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};
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$.tablesort.prototype = {
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sort: function(th, direction) {
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var start = new Date(),
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self = this,
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table = this.$table,
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rowsContainer = table.find('tbody').length > 0 ? table.find('tbody') : table,
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rows = rowsContainer.find('tr').has('td, th'),
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cells = rows.find(':nth-child(' + (th.index() + 1) + ')').filter('td, th'),
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sortBy = th.data().sortBy,
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sortedMap = [];
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var unsortedValues = cells.map(function(idx, cell) {
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if (sortBy)
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return (typeof sortBy === 'function') ? sortBy($(th), $(cell), self) : sortBy;
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return ($(this).data().sortValue != null ? $(this).data().sortValue : $(this).text());
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});
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if (unsortedValues.length === 0) return;
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//click on a different column
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if (this.index !== th.index()) {
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this.direction = 'asc';
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this.index = th.index();
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}
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else if (direction !== 'asc' && direction !== 'desc')
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this.direction = this.direction === 'asc' ? 'desc' : 'asc';
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else
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this.direction = direction;
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direction = this.direction == 'asc' ? 1 : -1;
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self.$table.trigger('tablesort:start', [self]);
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self.log("Sorting by " + this.index + ' ' + this.direction);
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// Try to force a browser redraw
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self.$table.css("display");
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// Run sorting asynchronously on a timeout to force browser redraw after
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// `tablesort:start` callback. Also avoids locking up the browser too much.
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setTimeout(function() {
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self.$sortCells.removeClass(self.settings.asc + ' ' + self.settings.desc);
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for (var i = 0, length = unsortedValues.length; i < length; i++)
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{
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sortedMap.push({
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index: i,
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cell: cells[i],
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row: rows[i],
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value: unsortedValues[i]
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});
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}
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sortedMap.sort(function(a, b) {
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return self.settings.compare(a.value, b.value) * direction;
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});
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$.each(sortedMap, function(i, entry) {
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rowsContainer.append(entry.row);
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});
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th.addClass(self.settings[self.direction]);
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self.log('Sort finished in ' + ((new Date()).getTime() - start.getTime()) + 'ms');
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self.$table.trigger('tablesort:complete', [self]);
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//Try to force a browser redraw
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self.$table.css("display");
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}, unsortedValues.length > 2000 ? 200 : 10);
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},
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log: function(msg) {
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if(($.tablesort.DEBUG || this.settings.debug) && console && console.log) {
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console.log('[tablesort] ' + msg);
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}
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},
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destroy: function() {
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this.$sortCells.off('click.tablesort');
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this.$table.data('tablesort', null);
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return null;
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}
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};
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$.tablesort.DEBUG = false;
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$.tablesort.defaults = {
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debug: $.tablesort.DEBUG,
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asc: 'sorted ascending',
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desc: 'sorted descending',
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compare: function(a, b) {
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if (a > b) {
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return 1;
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} else if (a < b) {
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return -1;
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} else {
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return 0;
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}
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}
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};
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$.fn.tablesort = function(settings) {
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var table, sortable, previous;
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return this.each(function() {
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table = $(this);
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previous = table.data('tablesort');
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if(previous) {
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previous.destroy();
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}
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table.data('tablesort', new $.tablesort(table, settings));
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});
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};
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})(window.Zepto || window.jQuery);
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