1 /*!

     2  * jQuery UI Slider 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: Slider

    11 //>>group: Widgets

    12 //>>description: Displays a flexible slider with ranges and accessibility via keyboard.

    13 //>>docs: http://api.jqueryui.com/slider/

    14 //>>demos: http://jqueryui.com/slider/

    15 //>>css.structure: ../../themes/base/core.css

    16 //>>css.structure: ../../themes/base/slider.css

    17 //>>css.theme: ../../themes/base/theme.css

    18 

    19 ( function( factory ) {

    20 	if ( typeof define === "function" && define.amd ) {

    21 

    22 		// AMD. Register as an anonymous module.

    23 		define( [

    24 			"jquery",

    25 			"./mouse",

    26 			"./core"

    27 		], factory );

    28 	} else {

    29 

    30 		// Browser globals

    31 		factory( jQuery );

    32 	}

    33 }( function( $ ) {

    34 

    35 return $.widget( "ui.slider", $.ui.mouse, {

    36 	version: "1.12.1",

    37 	widgetEventPrefix: "slide",

    38 

    39 	options: {

    40 		animate: false,

    41 		classes: {

    42 			"ui-slider": "ui-corner-all",

    43 			"ui-slider-handle": "ui-corner-all",

    44 

    45 			// Note: ui-widget-header isn't the most fittingly semantic framework class for this

    46 			// element, but worked best visually with a variety of themes

    47 			"ui-slider-range": "ui-corner-all ui-widget-header"

    48 		},

    49 		distance: 0,

    50 		max: 100,

    51 		min: 0,

    52 		orientation: "horizontal",

    53 		range: false,

    54 		step: 1,

    55 		value: 0,

    56 		values: null,

    57 

    58 		// Callbacks

    59 		change: null,

    60 		slide: null,

    61 		start: null,

    62 		stop: null

    63 	},

    64 

    65 	// Number of pages in a slider

    66 	// (how many times can you page up/down to go through the whole range)

    67 	numPages: 5,

    68 

    69 	_create: function() {

    70 		this._keySliding = false;

    71 		this._mouseSliding = false;

    72 		this._animateOff = true;

    73 		this._handleIndex = null;

    74 		this._detectOrientation();

    75 		this._mouseInit();

    76 		this._calculateNewMax();

    77 

    78 		this._addClass( "ui-slider ui-slider-" + this.orientation,

    79 			"ui-widget ui-widget-content" );

    80 

    81 		this._refresh();

    82 

    83 		this._animateOff = false;

    84 	},

    85 

    86 	_refresh: function() {

    87 		this._createRange();

    88 		this._createHandles();

    89 		this._setupEvents();

    90 		this._refreshValue();

    91 	},

    92 

    93 	_createHandles: function() {

    94 		var i, handleCount,

    95 			options = this.options,

    96 			existingHandles = this.element.find( ".ui-slider-handle" ),

    97 			handle = "<span tabindex='0'></span>",

    98 			handles = [];

    99 

   100 		handleCount = ( options.values && options.values.length ) || 1;

   101 

   102 		if ( existingHandles.length > handleCount ) {

   103 			existingHandles.slice( handleCount ).remove();

   104 			existingHandles = existingHandles.slice( 0, handleCount );

   105 		}

   106 

   107 		for ( i = existingHandles.length; i < handleCount; i++ ) {

   108 			handles.push( handle );

   109 		}

   110 

   111 		this.handles = existingHandles.add( $( handles.join( "" ) ).appendTo( this.element ) );

   112 

   113 		this._addClass( this.handles, "ui-slider-handle", "ui-state-default" );

   114 

   115 		this.handle = this.handles.eq( 0 );

   116 

   117 		this.handles.each( function( i ) {

   118 			$( this )

   119 				.data( "ui-slider-handle-index", i )

   120 				.attr( "tabIndex", 0 );

   121 		} );

   122 	},

   123 

   124 	_createRange: function() {

   125 		var options = this.options;

   126 

   127 		if ( options.range ) {

   128 			if ( options.range === true ) {

   129 				if ( !options.values ) {

   130 					options.values = [ this._valueMin(), this._valueMin() ];

   131 				} else if ( options.values.length && options.values.length !== 2 ) {

   132 					options.values = [ options.values[ 0 ], options.values[ 0 ] ];

   133 				} else if ( $.isArray( options.values ) ) {

   134 					options.values = options.values.slice( 0 );

   135 				}

   136 			}

   137 

   138 			if ( !this.range || !this.range.length ) {

   139 				this.range = $( "<div>" )

   140 					.appendTo( this.element );

   141 

   142 				this._addClass( this.range, "ui-slider-range" );

   143 			} else {

   144 				this._removeClass( this.range, "ui-slider-range-min ui-slider-range-max" );

   145 

   146 				// Handle range switching from true to min/max

   147 				this.range.css( {

   148 					"left": "",

   149 					"bottom": ""

   150 				} );

   151 			}

   152 			if ( options.range === "min" || options.range === "max" ) {

   153 				this._addClass( this.range, "ui-slider-range-" + options.range );

   154 			}

   155 		} else {

   156 			if ( this.range ) {

   157 				this.range.remove();

   158 			}

   159 			this.range = null;

   160 		}

   161 	},

   162 

   163 	_setupEvents: function() {

   164 		this._off( this.handles );

   165 		this._on( this.handles, this._handleEvents );

   166 		this._hoverable( this.handles );

   167 		this._focusable( this.handles );

   168 	},

   169 

   170 	_destroy: function() {

   171 		this.handles.remove();

   172 		if ( this.range ) {

   173 			this.range.remove();

   174 		}

   175 

   176 		this._mouseDestroy();

   177 	},

   178 

   179 	_mouseCapture: function( event ) {

   180 		var position, normValue, distance, closestHandle, index, allowed, offset, mouseOverHandle,

   181 			that = this,

   182 			o = this.options;

   183 

   184 		if ( o.disabled ) {

   185 			return false;

   186 		}

   187 

   188 		this.elementSize = {

   189 			width: this.element.outerWidth(),

   190 			height: this.element.outerHeight()

   191 		};

   192 		this.elementOffset = this.element.offset();

   193 

   194 		position = { x: event.pageX, y: event.pageY };

   195 		normValue = this._normValueFromMouse( position );

   196 		distance = this._valueMax() - this._valueMin() + 1;

   197 		this.handles.each( function( i ) {

   198 			var thisDistance = Math.abs( normValue - that.values( i ) );

   199 			if ( ( distance > thisDistance ) ||

   200 				( distance === thisDistance &&

   201 					( i === that._lastChangedValue || that.values( i ) === o.min ) ) ) {

   202 				distance = thisDistance;

   203 				closestHandle = $( this );

   204 				index = i;

   205 			}

   206 		} );

   207 

   208 		allowed = this._start( event, index );

   209 		if ( allowed === false ) {

   210 			return false;

   211 		}

   212 		this._mouseSliding = true;

   213 

   214 		this._handleIndex = index;

   215 

   216 		this._addClass( closestHandle, null, "ui-state-active" );

   217 		closestHandle.trigger( "focus" );

   218 

   219 		offset = closestHandle.offset();

   220 		mouseOverHandle = !$( event.target ).parents().addBack().is( ".ui-slider-handle" );

   221 		this._clickOffset = mouseOverHandle ? { left: 0, top: 0 } : {

   222 			left: event.pageX - offset.left - ( closestHandle.width() / 2 ),

   223 			top: event.pageY - offset.top -

   224 				( closestHandle.height() / 2 ) -

   225 				( parseInt( closestHandle.css( "borderTopWidth" ), 10 ) || 0 ) -

   226 				( parseInt( closestHandle.css( "borderBottomWidth" ), 10 ) || 0 ) +

   227 				( parseInt( closestHandle.css( "marginTop" ), 10 ) || 0 )

   228 		};

   229 

   230 		if ( !this.handles.hasClass( "ui-state-hover" ) ) {

   231 			this._slide( event, index, normValue );

   232 		}

   233 		this._animateOff = true;

   234 		return true;

   235 	},

   236 

   237 	_mouseStart: function() {

   238 		return true;

   239 	},

   240 

   241 	_mouseDrag: function( event ) {

   242 		var position = { x: event.pageX, y: event.pageY },

   243 			normValue = this._normValueFromMouse( position );

   244 

   245 		this._slide( event, this._handleIndex, normValue );

   246 

   247 		return false;

   248 	},

   249 

   250 	_mouseStop: function( event ) {

   251 		this._removeClass( this.handles, null, "ui-state-active" );

   252 		this._mouseSliding = false;

   253 

   254 		this._stop( event, this._handleIndex );

   255 		this._change( event, this._handleIndex );

   256 

   257 		this._handleIndex = null;

   258 		this._clickOffset = null;

   259 		this._animateOff = false;

   260 

   261 		return false;

   262 	},

   263 

   264 	_detectOrientation: function() {

   265 		this.orientation = ( this.options.orientation === "vertical" ) ? "vertical" : "horizontal";

   266 	},

   267 

   268 	_normValueFromMouse: function( position ) {

   269 		var pixelTotal,

   270 			pixelMouse,

   271 			percentMouse,

   272 			valueTotal,

   273 			valueMouse;

   274 

   275 		if ( this.orientation === "horizontal" ) {

   276 			pixelTotal = this.elementSize.width;

   277 			pixelMouse = position.x - this.elementOffset.left -

   278 				( this._clickOffset ? this._clickOffset.left : 0 );

   279 		} else {

   280 			pixelTotal = this.elementSize.height;

   281 			pixelMouse = position.y - this.elementOffset.top -

   282 				( this._clickOffset ? this._clickOffset.top : 0 );

   283 		}

   284 

   285 		percentMouse = ( pixelMouse / pixelTotal );

   286 		if ( percentMouse > 1 ) {

   287 			percentMouse = 1;

   288 		}

   289 		if ( percentMouse < 0 ) {

   290 			percentMouse = 0;

   291 		}

   292 		if ( this.orientation === "vertical" ) {

   293 			percentMouse = 1 - percentMouse;

   294 		}

   295 

   296 		valueTotal = this._valueMax() - this._valueMin();

   297 		valueMouse = this._valueMin() + percentMouse * valueTotal;

   298 

   299 		return this._trimAlignValue( valueMouse );

   300 	},

   301 

   302 	_uiHash: function( index, value, values ) {

   303 		var uiHash = {

   304 			handle: this.handles[ index ],

   305 			handleIndex: index,

   306 			value: value !== undefined ? value : this.value()

   307 		};

   308 

   309 		if ( this._hasMultipleValues() ) {

   310 			uiHash.value = value !== undefined ? value : this.values( index );

   311 			uiHash.values = values || this.values();

   312 		}

   313 

   314 		return uiHash;

   315 	},

   316 

   317 	_hasMultipleValues: function() {

   318 		return this.options.values && this.options.values.length;

   319 	},

   320 

   321 	_start: function( event, index ) {

   322 		return this._trigger( "start", event, this._uiHash( index ) );

   323 	},

   324 

   325 	_slide: function( event, index, newVal ) {

   326 		var allowed, otherVal,

   327 			currentValue = this.value(),

   328 			newValues = this.values();

   329 

   330 		if ( this._hasMultipleValues() ) {

   331 			otherVal = this.values( index ? 0 : 1 );

   332 			currentValue = this.values( index );

   333 

   334 			if ( this.options.values.length === 2 && this.options.range === true ) {

   335 				newVal =  index === 0 ? Math.min( otherVal, newVal ) : Math.max( otherVal, newVal );

   336 			}

   337 

   338 			newValues[ index ] = newVal;

   339 		}

   340 

   341 		if ( newVal === currentValue ) {

   342 			return;

   343 		}

   344 

   345 		allowed = this._trigger( "slide", event, this._uiHash( index, newVal, newValues ) );

   346 

   347 		// A slide can be canceled by returning false from the slide callback

   348 		if ( allowed === false ) {

   349 			return;

   350 		}

   351 

   352 		if ( this._hasMultipleValues() ) {

   353 			this.values( index, newVal );

   354 		} else {

   355 			this.value( newVal );

   356 		}

   357 	},

   358 

   359 	_stop: function( event, index ) {

   360 		this._trigger( "stop", event, this._uiHash( index ) );

   361 	},

   362 

   363 	_change: function( event, index ) {

   364 		if ( !this._keySliding && !this._mouseSliding ) {

   365 

   366 			//store the last changed value index for reference when handles overlap

   367 			this._lastChangedValue = index;

   368 			this._trigger( "change", event, this._uiHash( index ) );

   369 		}

   370 	},

   371 

   372 	value: function( newValue ) {

   373 		if ( arguments.length ) {

   374 			this.options.value = this._trimAlignValue( newValue );

   375 			this._refreshValue();

   376 			this._change( null, 0 );

   377 			return;

   378 		}

   379 

   380 		return this._value();

   381 	},

   382 

   383 	values: function( index, newValue ) {

   384 		var vals,

   385 			newValues,

   386 			i;

   387 

   388 		if ( arguments.length > 1 ) {

   389 			this.options.values[ index ] = this._trimAlignValue( newValue );

   390 			this._refreshValue();

   391 			this._change( null, index );

   392 			return;

   393 		}

   394 

   395 		if ( arguments.length ) {

   396 			if ( $.isArray( arguments[ 0 ] ) ) {

   397 				vals = this.options.values;

   398 				newValues = arguments[ 0 ];

   399 				for ( i = 0; i < vals.length; i += 1 ) {

   400 					vals[ i ] = this._trimAlignValue( newValues[ i ] );

   401 					this._change( null, i );

   402 				}

   403 				this._refreshValue();

   404 			} else {

   405 				if ( this._hasMultipleValues() ) {

   406 					return this._values( index );

   407 				} else {

   408 					return this.value();

   409 				}

   410 			}

   411 		} else {

   412 			return this._values();

   413 		}

   414 	},

   415 

   416 	_setOption: function( key, value ) {

   417 		var i,

   418 			valsLength = 0;

   419 

   420 		if ( key === "range" && this.options.range === true ) {

   421 			if ( value === "min" ) {

   422 				this.options.value = this._values( 0 );

   423 				this.options.values = null;

   424 			} else if ( value === "max" ) {

   425 				this.options.value = this._values( this.options.values.length - 1 );

   426 				this.options.values = null;

   427 			}

   428 		}

   429 

   430 		if ( $.isArray( this.options.values ) ) {

   431 			valsLength = this.options.values.length;

   432 		}

   433 

   434 		this._super( key, value );

   435 

   436 		switch ( key ) {

   437 			case "orientation":

   438 				this._detectOrientation();

   439 				this._removeClass( "ui-slider-horizontal ui-slider-vertical" )

   440 					._addClass( "ui-slider-" + this.orientation );

   441 				this._refreshValue();

   442 				if ( this.options.range ) {

   443 					this._refreshRange( value );

   444 				}

   445 

   446 				// Reset positioning from previous orientation

   447 				this.handles.css( value === "horizontal" ? "bottom" : "left", "" );

   448 				break;

   449 			case "value":

   450 				this._animateOff = true;

   451 				this._refreshValue();

   452 				this._change( null, 0 );

   453 				this._animateOff = false;

   454 				break;

   455 			case "values":

   456 				this._animateOff = true;

   457 				this._refreshValue();

   458 

   459 				// Start from the last handle to prevent unreachable handles (#9046)

   460 				for ( i = valsLength - 1; i >= 0; i-- ) {

   461 					this._change( null, i );

   462 				}

   463 				this._animateOff = false;

   464 				break;

   465 			case "step":

   466 			case "min":

   467 			case "max":

   468 				this._animateOff = true;

   469 				this._calculateNewMax();

   470 				this._refreshValue();

   471 				this._animateOff = false;

   472 				break;

   473 			case "range":

   474 				this._animateOff = true;

   475 				this._refresh();

   476 				this._animateOff = false;

   477 				break;

   478 		}

   479 	},

   480 

   481 	_setOptionDisabled: function( value ) {

   482 		this._super( value );

   483 

   484 		this._toggleClass( null, "ui-state-disabled", !!value );

   485 	},

   486 

   487 	//internal value getter

   488 	// _value() returns value trimmed by min and max, aligned by step

   489 	_value: function() {

   490 		var val = this.options.value;

   491 		val = this._trimAlignValue( val );

   492 

   493 		return val;

   494 	},

   495 

   496 	//internal values getter

   497 	// _values() returns array of values trimmed by min and max, aligned by step

   498 	// _values( index ) returns single value trimmed by min and max, aligned by step

   499 	_values: function( index ) {

   500 		var val,

   501 			vals,

   502 			i;

   503 

   504 		if ( arguments.length ) {

   505 			val = this.options.values[ index ];

   506 			val = this._trimAlignValue( val );

   507 

   508 			return val;

   509 		} else if ( this._hasMultipleValues() ) {

   510 

   511 			// .slice() creates a copy of the array

   512 			// this copy gets trimmed by min and max and then returned

   513 			vals = this.options.values.slice();

   514 			for ( i = 0; i < vals.length; i += 1 ) {

   515 				vals[ i ] = this._trimAlignValue( vals[ i ] );

   516 			}

   517 

   518 			return vals;

   519 		} else {

   520 			return [];

   521 		}

   522 	},

   523 

   524 	// Returns the step-aligned value that val is closest to, between (inclusive) min and max

   525 	_trimAlignValue: function( val ) {

   526 		if ( val <= this._valueMin() ) {

   527 			return this._valueMin();

   528 		}

   529 		if ( val >= this._valueMax() ) {

   530 			return this._valueMax();

   531 		}

   532 		var step = ( this.options.step > 0 ) ? this.options.step : 1,

   533 			valModStep = ( val - this._valueMin() ) % step,

   534 			alignValue = val - valModStep;

   535 

   536 		if ( Math.abs( valModStep ) * 2 >= step ) {

   537 			alignValue += ( valModStep > 0 ) ? step : ( -step );

   538 		}

   539 

   540 		// Since JavaScript has problems with large floats, round

   541 		// the final value to 5 digits after the decimal point (see #4124)

   542 		return parseFloat( alignValue.toFixed( 5 ) );

   543 	},

   544 

   545 	_calculateNewMax: function() {

   546 		var max = this.options.max,

   547 			min = this._valueMin(),

   548 			step = this.options.step,

   549 			aboveMin = Math.round( ( max - min ) / step ) * step;

   550 		max = aboveMin + min;

   551 		if ( max > this.options.max ) {

   552 

   553 			//If max is not divisible by step, rounding off may increase its value

   554 			max -= step;

   555 		}

   556 		this.max = parseFloat( max.toFixed( this._precision() ) );

   557 	},

   558 

   559 	_precision: function() {

   560 		var precision = this._precisionOf( this.options.step );

   561 		if ( this.options.min !== null ) {

   562 			precision = Math.max( precision, this._precisionOf( this.options.min ) );

   563 		}

   564 		return precision;

   565 	},

   566 

   567 	_precisionOf: function( num ) {

   568 		var str = num.toString(),

   569 			decimal = str.indexOf( "." );

   570 		return decimal === -1 ? 0 : str.length - decimal - 1;

   571 	},

   572 

   573 	_valueMin: function() {

   574 		return this.options.min;

   575 	},

   576 

   577 	_valueMax: function() {

   578 		return this.max;

   579 	},

   580 

   581 	_refreshRange: function( orientation ) {

   582 		if ( orientation === "vertical" ) {

   583 			this.range.css( { "width": "", "left": "" } );

   584 		}

   585 		if ( orientation === "horizontal" ) {

   586 			this.range.css( { "height": "", "bottom": "" } );

   587 		}

   588 	},

   589 

   590 	_refreshValue: function() {

   591 		var lastValPercent, valPercent, value, valueMin, valueMax,

   592 			oRange = this.options.range,

   593 			o = this.options,

   594 			that = this,

   595 			animate = ( !this._animateOff ) ? o.animate : false,

   596 			_set = {};

   597 

   598 		if ( this._hasMultipleValues() ) {

   599 			this.handles.each( function( i ) {

   600 				valPercent = ( that.values( i ) - that._valueMin() ) / ( that._valueMax() -

   601 					that._valueMin() ) * 100;

   602 				_set[ that.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%";

   603 				$( this ).stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate );

   604 				if ( that.options.range === true ) {

   605 					if ( that.orientation === "horizontal" ) {

   606 						if ( i === 0 ) {

   607 							that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {

   608 								left: valPercent + "%"

   609 							}, o.animate );

   610 						}

   611 						if ( i === 1 ) {

   612 							that.range[ animate ? "animate" : "css" ]( {

   613 								width: ( valPercent - lastValPercent ) + "%"

   614 							}, {

   615 								queue: false,

   616 								duration: o.animate

   617 							} );

   618 						}

   619 					} else {

   620 						if ( i === 0 ) {

   621 							that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {

   622 								bottom: ( valPercent ) + "%"

   623 							}, o.animate );

   624 						}

   625 						if ( i === 1 ) {

   626 							that.range[ animate ? "animate" : "css" ]( {

   627 								height: ( valPercent - lastValPercent ) + "%"

   628 							}, {

   629 								queue: false,

   630 								duration: o.animate

   631 							} );

   632 						}

   633 					}

   634 				}

   635 				lastValPercent = valPercent;

   636 			} );

   637 		} else {

   638 			value = this.value();

   639 			valueMin = this._valueMin();

   640 			valueMax = this._valueMax();

   641 			valPercent = ( valueMax !== valueMin ) ?

   642 					( value - valueMin ) / ( valueMax - valueMin ) * 100 :

   643 					0;

   644 			_set[ this.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%";

   645 			this.handle.stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate );

   646 

   647 			if ( oRange === "min" && this.orientation === "horizontal" ) {

   648 				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {

   649 					width: valPercent + "%"

   650 				}, o.animate );

   651 			}

   652 			if ( oRange === "max" && this.orientation === "horizontal" ) {

   653 				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {

   654 					width: ( 100 - valPercent ) + "%"

   655 				}, o.animate );

   656 			}

   657 			if ( oRange === "min" && this.orientation === "vertical" ) {

   658 				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {

   659 					height: valPercent + "%"

   660 				}, o.animate );

   661 			}

   662 			if ( oRange === "max" && this.orientation === "vertical" ) {

   663 				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {

   664 					height: ( 100 - valPercent ) + "%"

   665 				}, o.animate );

   666 			}

   667 		}

   668 	},

   669 

   670 	_handleEvents: {

   671 		keydown: function( event ) {

   672 			var allowed, curVal, newVal, step,

   673 				index = $( event.target ).data( "ui-slider-handle-index" );

   674 

   675 			switch ( event.keyCode ) {

   676 				case $.ui.keyCode.HOME:

   677 				case $.ui.keyCode.END:

   678 				case $.ui.keyCode.PAGE_UP:

   679 				case $.ui.keyCode.PAGE_DOWN:

   680 				case $.ui.keyCode.UP:

   681 				case $.ui.keyCode.RIGHT:

   682 				case $.ui.keyCode.DOWN:

   683 				case $.ui.keyCode.LEFT:

   684 					event.preventDefault();

   685 					if ( !this._keySliding ) {

   686 						this._keySliding = true;

   687 						this._addClass( $( event.target ), null, "ui-state-active" );

   688 						allowed = this._start( event, index );

   689 						if ( allowed === false ) {

   690 							return;

   691 						}

   692 					}

   693 					break;

   694 			}

   695 

   696 			step = this.options.step;

   697 			if ( this._hasMultipleValues() ) {

   698 				curVal = newVal = this.values( index );

   699 			} else {

   700 				curVal = newVal = this.value();

   701 			}

   702 

   703 			switch ( event.keyCode ) {

   704 				case $.ui.keyCode.HOME:

   705 					newVal = this._valueMin();

   706 					break;

   707 				case $.ui.keyCode.END:

   708 					newVal = this._valueMax();

   709 					break;

   710 				case $.ui.keyCode.PAGE_UP:

   711 					newVal = this._trimAlignValue(

   712 						curVal + ( ( this._valueMax() - this._valueMin() ) / this.numPages )

   713 					);

   714 					break;

   715 				case $.ui.keyCode.PAGE_DOWN:

   716 					newVal = this._trimAlignValue(

   717 						curVal - ( ( this._valueMax() - this._valueMin() ) / this.numPages ) );

   718 					break;

   719 				case $.ui.keyCode.UP:

   720 				case $.ui.keyCode.RIGHT:

   721 					if ( curVal === this._valueMax() ) {

   722 						return;

   723 					}

   724 					newVal = this._trimAlignValue( curVal + step );

   725 					break;

   726 				case $.ui.keyCode.DOWN:

   727 				case $.ui.keyCode.LEFT:

   728 					if ( curVal === this._valueMin() ) {

   729 						return;

   730 					}

   731 					newVal = this._trimAlignValue( curVal - step );

   732 					break;

   733 			}

   734 

   735 			this._slide( event, index, newVal );

   736 		},

   737 		keyup: function( event ) {

   738 			var index = $( event.target ).data( "ui-slider-handle-index" );

   739 

   740 			if ( this._keySliding ) {

   741 				this._keySliding = false;

   742 				this._stop( event, index );

   743 				this._change( event, index );

   744 				this._removeClass( $( event.target ), null, "ui-state-active" );

   745 			}

   746 		}

   747 	}

   748 } );

   749 

   750 } ) );