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progressbar.js (4195B)

      1 /*!
      2  * jQuery UI Progressbar 1.12.1
      3  * http://jqueryui.com
      4  *
      5  * Copyright jQuery Foundation and other contributors
      6  * Released under the MIT license.
      7  * http://jquery.org/license
      8  */
      9 
     10 //>>label: Progressbar
     11 //>>group: Widgets
     12 // jscs:disable maximumLineLength
     13 //>>description: Displays a status indicator for loading state, standard percentage, and other progress indicators.
     14 // jscs:enable maximumLineLength
     15 //>>docs: http://api.jqueryui.com/progressbar/
     16 //>>demos: http://jqueryui.com/progressbar/
     17 //>>css.structure: ../../themes/base/core.css
     18 //>>css.structure: ../../themes/base/progressbar.css
     19 //>>css.theme: ../../themes/base/theme.css
     20 
     21 ( function( factory ) {
     22 	if ( typeof define === "function" && define.amd ) {
     23 
     24 		// AMD. Register as an anonymous module.
     25 		define( [
     26 			"jquery",
     27 			"./core"
     28 		], factory );
     29 	} else {
     30 
     31 		// Browser globals
     32 		factory( jQuery );
     33 	}
     34 }( function( $ ) {
     35 
     36 return $.widget( "ui.progressbar", {
     37 	version: "1.12.1",
     38 	options: {
     39 		classes: {
     40 			"ui-progressbar": "ui-corner-all",
     41 			"ui-progressbar-value": "ui-corner-left",
     42 			"ui-progressbar-complete": "ui-corner-right"
     43 		},
     44 		max: 100,
     45 		value: 0,
     46 
     47 		change: null,
     48 		complete: null
     49 	},
     50 
     51 	min: 0,
     52 
     53 	_create: function() {
     54 
     55 		// Constrain initial value
     56 		this.oldValue = this.options.value = this._constrainedValue();
     57 
     58 		this.element.attr( {
     59 
     60 			// Only set static values; aria-valuenow and aria-valuemax are
     61 			// set inside _refreshValue()
     62 			role: "progressbar",
     63 			"aria-valuemin": this.min
     64 		} );
     65 		this._addClass( "ui-progressbar", "ui-widget ui-widget-content" );
     66 
     67 		this.valueDiv = $( "<div>" ).appendTo( this.element );
     68 		this._addClass( this.valueDiv, "ui-progressbar-value", "ui-widget-header" );
     69 		this._refreshValue();
     70 	},
     71 
     72 	_destroy: function() {
     73 		this.element.removeAttr( "role aria-valuemin aria-valuemax aria-valuenow" );
     74 
     75 		this.valueDiv.remove();
     76 	},
     77 
     78 	value: function( newValue ) {
     79 		if ( newValue === undefined ) {
     80 			return this.options.value;
     81 		}
     82 
     83 		this.options.value = this._constrainedValue( newValue );
     84 		this._refreshValue();
     85 	},
     86 
     87 	_constrainedValue: function( newValue ) {
     88 		if ( newValue === undefined ) {
     89 			newValue = this.options.value;
     90 		}
     91 
     92 		this.indeterminate = newValue === false;
     93 
     94 		// Sanitize value
     95 		if ( typeof newValue !== "number" ) {
     96 			newValue = 0;
     97 		}
     98 
     99 		return this.indeterminate ? false :
    100 			Math.min( this.options.max, Math.max( this.min, newValue ) );
    101 	},
    102 
    103 	_setOptions: function( options ) {
    104 
    105 		// Ensure "value" option is set after other values (like max)
    106 		var value = options.value;
    107 		delete options.value;
    108 
    109 		this._super( options );
    110 
    111 		this.options.value = this._constrainedValue( value );
    112 		this._refreshValue();
    113 	},
    114 
    115 	_setOption: function( key, value ) {
    116 		if ( key === "max" ) {
    117 
    118 			// Don't allow a max less than min
    119 			value = Math.max( this.min, value );
    120 		}
    121 		this._super( key, value );
    122 	},
    123 
    124 	_setOptionDisabled: function( value ) {
    125 		this._super( value );
    126 
    127 		this.element.attr( "aria-disabled", value );
    128 		this._toggleClass( null, "ui-state-disabled", !!value );
    129 	},
    130 
    131 	_percentage: function() {
    132 		return this.indeterminate ?
    133 			100 :
    134 			100 * ( this.options.value - this.min ) / ( this.options.max - this.min );
    135 	},
    136 
    137 	_refreshValue: function() {
    138 		var value = this.options.value,
    139 			percentage = this._percentage();
    140 
    141 		this.valueDiv
    142 			.toggle( this.indeterminate || value > this.min )
    143 			.width( percentage.toFixed( 0 ) + "%" );
    144 
    145 		this
    146 			._toggleClass( this.valueDiv, "ui-progressbar-complete", null,
    147 				value === this.options.max )
    148 			._toggleClass( "ui-progressbar-indeterminate", null, this.indeterminate );
    149 
    150 		if ( this.indeterminate ) {
    151 			this.element.removeAttr( "aria-valuenow" );
    152 			if ( !this.overlayDiv ) {
    153 				this.overlayDiv = $( "<div>" ).appendTo( this.valueDiv );
    154 				this._addClass( this.overlayDiv, "ui-progressbar-overlay" );
    155 			}
    156 		} else {
    157 			this.element.attr( {
    158 				"aria-valuemax": this.options.max,
    159 				"aria-valuenow": value
    160 			} );
    161 			if ( this.overlayDiv ) {
    162 				this.overlayDiv.remove();
    163 				this.overlayDiv = null;
    164 			}
    165 		}
    166 
    167 		if ( this.oldValue !== value ) {
    168 			this.oldValue = value;
    169 			this._trigger( "change" );
    170 		}
    171 		if ( value === this.options.max ) {
    172 			this._trigger( "complete" );
    173 		}
    174 	}
    175 } );
    176 
    177 } ) );