mirror of
https://github.com/jquery/jquery-ui.git
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152 lines
3.4 KiB
JavaScript
152 lines
3.4 KiB
JavaScript
/*!
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* jQuery UI Progressbar @VERSION
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* http://jqueryui.com
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*
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* Copyright 2012 jQuery Foundation and other contributors
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* Released under the MIT license.
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* http://jquery.org/license
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*
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* http://api.jqueryui.com/progressbar/
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*
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* Depends:
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* jquery.ui.core.js
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* jquery.ui.widget.js
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*/
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(function( $, undefined ) {
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$.widget( "ui.progressbar", {
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version: "@VERSION",
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options: {
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value: 0,
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max: 100
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},
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min: 0,
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_create: function() {
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// Constrain initial value
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this.options.value = this._constrainedValue();
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this.element
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.addClass( "ui-progressbar ui-widget ui-widget-content ui-corner-all" )
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.attr({
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role: "progressbar",
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"aria-valuemin": this.min,
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"aria-valuemax": this.options.max,
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"aria-valuenow": this.options.value
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});
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this.valueDiv = $( "<div class='ui-progressbar-value ui-widget-header ui-corner-left'></div>" )
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.appendTo( this.element );
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this.oldValue = this.options.value;
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this._refreshValue();
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},
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_destroy: function() {
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this.element
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.removeClass( "ui-progressbar ui-widget ui-widget-content ui-corner-all" )
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.removeAttr( "role" )
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.removeAttr( "aria-valuemin" )
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.removeAttr( "aria-valuemax" )
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.removeAttr( "aria-valuenow" );
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this.valueDiv.remove();
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},
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value: function( newValue ) {
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if ( newValue === undefined ) {
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return this.options.value;
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}
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this._setOption( "value", this._constrainedValue( newValue ) );
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return this;
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},
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_constrainedValue: function( newValue ) {
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var val;
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if ( newValue === undefined ) {
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val = this.options.value;
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} else {
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val = newValue;
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}
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this.indeterminate = val === false;
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// sanitize value
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if ( typeof val !== "number" ) {
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val = 0;
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}
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return this.indeterminate ? false : Math.min( this.options.max, Math.max( this.min, val ) );
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},
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_setOptions: function( options ) {
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var val = options.value;
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// Ensure "value" option is set after other values (like max)
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delete options.value;
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this._super( options );
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if ( val !== undefined ) {
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this._setOption( "value", val );
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}
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},
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_setOption: function( key, value ) {
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if ( key === "max" ) {
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// Don't allow a max less than min
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this.options.max = Math.max( this.min, value );
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this.options.value = this._constrainedValue();
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}
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if ( key === "value" ) {
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this.options.value = this._constrainedValue( value );
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}
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else {
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this._super( key, value );
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}
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this._refreshValue();
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},
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_percentage: function() {
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return this.indeterminate ? 100 : 100 * this.options.value / this.options.max;
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},
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_refreshValue: function() {
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var value = this.options.value,
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percentage = this._percentage();
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this.valueDiv
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.toggle( this.indeterminate || value > this.min )
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.toggleClass( "ui-corner-right", value === this.options.max )
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.toggleClass( "ui-progressbar-indeterminate", this.indeterminate )
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.width( percentage.toFixed(0) + "%" );
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if ( this.indeterminate ) {
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this.element.removeAttr( "aria-valuemax" ).removeAttr( "aria-valuenow" );
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if ( !this.overlayDiv ) {
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this.overlayDiv = $( "<div class='ui-progressbar-overlay'></div>" ).appendTo( this.valueDiv );
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}
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} else {
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this.element.attr({
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"aria-valuemax": this.options.max,
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"aria-valuenow": value
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});
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if ( this.overlayDiv ) {
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this.overlayDiv.remove();
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this.overlayDiv = null;
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}
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}
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if ( this.oldValue !== value ) {
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this.oldValue = value;
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this._trigger( "change" );
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}
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if ( value === this.options.max ) {
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this._trigger( "complete" );
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}
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}
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});
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})( jQuery );
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