https://www.chybie.pl/asp/js/jquery.pause.js

1/*!
2 * Pause jQuery plugin v0.1
3 *
4 * Copyright 2010 by Tobia Conforto <[email protected]>
5 *
6 * Based on Pause-resume-animation jQuery plugin by Joe Weitzel
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the Free
10 * Software Foundation; either version 2 of the License, or(at your option)
11 * any later version.
12 *
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 * more details.
17 *
18 * You should have received a copy of the GNU General Public License along with
19 * this program; if not, write to the Free Software Foundation, Inc., 51
20 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 */
22/* Changelog:
23 *
24 * 0.1    2010-06-13  Initial release
25 */
26(function() {
27	var $ = jQuery,
28		pauseId = 'jQuery.pause',
29		uuid = 1,
30		oldAnimate = $.fn.animate,
31		anims = {};
32
33	function now() { return new Date().getTime(); }
34
35	$.fn.animate = function(prop, speed, easing, callback) {
36		var optall = $.speed(speed, easing, callback);
37		optall.complete = optall.old; // unwrap callback
38		return this.each(function() {
39			// check pauseId
40			if (! this[pauseId])
41				this[pauseId] = uuid++;
42			// start animation
43			var opt = $.extend({}, optall);
44			oldAnimate.apply($(this), [prop, $.extend({}, opt)]);
45			// store data
46			anims[this[pauseId]] = {
47				run: true,
48				prop: prop,
49				opt: opt,
50				start: now(),
51				done: 0
52			};
53		});
54	};
55
56	$.fn.pause = function() {
57		return this.each(function() {
58			// check pauseId
59			if (! this[pauseId])
60				this[pauseId] = uuid++;
61			// fetch data
62			var data = anims[this[pauseId]];
63			if (data && data.run) {
64				data.done += now() - data.start;
65				if (data.done > data.opt.duration) {
66					// remove stale entry
67					delete anims[this[pauseId]];
68				} else {
69					// pause animation
70					$(this).stop();
71					data.run = false;
72				}
73			}
74		});
75	};
76
77	$.fn.resume = function() {
78		return this.each(function() {
79			// check pauseId
80			if (! this[pauseId])
81				this[pauseId] = uuid++;
82			// fetch data
83			var data = anims[this[pauseId]];
84			if (data && ! data.run) {
85				// resume animation
86				data.opt.duration -= data.done;
87				data.done = 0;
88				data.run = true;
89				data.start = now();
90				oldAnimate.apply($(this), [data.prop, $.extend({}, data.opt)]);
91			}
92		});
93	};
94})();