Mercurial > judyates

     1 /**

     2  * Fx.ProgressBar

     3  *

     4  * @version		1.1

     5  *

     6  * @license		MIT License

     7  *

     8  * @author		Harald Kirschner <mail [at] digitarald [dot] de>

     9  * @copyright	Authors

    10  */

    11 

    12 Fx.ProgressBar = new Class({

    13 

    14 	Extends: Fx,

    15 

    16 	options: {

    17 		text: null,

    18 		url: null,

    19 		transition: Fx.Transitions.Circ.easeOut,

    20 		fit: true,

    21 		link: 'cancel'

    22 	},

    23 

    24 	initialize: function(element, options) {

    25 		this.element = $(element);

    26 		this.parent(options);

    27 				

    28 		var url = this.options.url;

    29 		if (url) {

    30 			this.element.setStyles({

    31 				'background-image': 'url(' + url + ')',

    32 				'background-repeat': 'no-repeat'

    33 			});

    34 		}

    35 		

    36 		if (this.options.fit) {

    37 			url = url || this.element.getStyle('background-image').replace(/^url\(["']?|["']?\)$/g, '');

    38 			if (url) {

    39 				var fill = new Image();

    40 				fill.onload = function() {

    41 					this.fill = fill.width;

    42 					fill = fill.onload = null;

    43 					this.set(this.now || 0);

    44 				}.bind(this);

    45 				fill.src = url;

    46 				if (!this.fill && fill.width) fill.onload();

    47 			}

    48 		} else {

    49 			this.set(0);

    50 		}

    51 	},

    52 

    53 	start: function(to, total) {

    54 		return this.parent(this.now, (arguments.length == 1) ? to.limit(0, 100) : to / total * 100);

    55 	},

    56 

    57 	set: function(to) {

    58 		this.now = to;

    59 		var css = (this.fill)

    60 			? (((this.fill / -2) + (to / 100) * (this.element.width || 1) || 0).round() + 'px')

    61 			: ((100 - to) + '%');

    62 		

    63 		this.element.setStyle('backgroundPosition', css + ' 0px').title = Math.round(to) + '%';

    64 		

    65 		var text = $(this.options.text);

    66 		if (text) text.set('text', Math.round(to) + '%');

    67 		

    68 		return this;

    69 	}

    70 

    71 });
author	rlm
date	Mon, 12 Apr 2010 03:30:00 -0400
parents	3f6b44aa6b35
children