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Edit File : slider.js \| Size : 19.14 KB
/! jQuery UI Slider 1.13.3 * https://jqueryui.com * * Copyright OpenJS Foundation and other contributors * Released under the MIT license. * https://jquery.org/license / //>>label: Slider //>>group: Widgets //>>description: Displays a flexible slider with ranges and accessibility via keyboard. //>>docs: https://api.jqueryui.com/slider/ //>>demos: https://jqueryui.com/slider/ //>>css.structure: ../../themes/base/core.css //>>css.structure: ../../themes/base/slider.css //>>css.theme: ../../themes/base/theme.css ( function( factory ) { "use strict"; if ( typeof define === "function" && define.amd ) { // AMD. Register as an anonymous module. define( [ "jquery", "./mouse", "../keycode", "../version", "../widget" ], factory ); } else { // Browser globals factory( jQuery ); } } )( function( $ ) { "use strict"; return $.widget( "ui.slider", $.ui.mouse, { version: "1.13.3", widgetEventPrefix: "slide", options: { animate: false, classes: { "ui-slider": "ui-corner-all", "ui-slider-handle": "ui-corner-all", // Note: ui-widget-header isn't the most fittingly semantic framework class for this // element, but worked best visually with a variety of themes "ui-slider-range": "ui-corner-all ui-widget-header" }, distance: 0, max: 100, min: 0, orientation: "horizontal", range: false, step: 1, value: 0, values: null, // Callbacks change: null, slide: null, start: null, stop: null }, // Number of pages in a slider // (how many times can you page up/down to go through the whole range) numPages: 5, _create: function() { this._keySliding = false; this._mouseSliding = false; this._animateOff = true; this._handleIndex = null; this._detectOrientation(); this._mouseInit(); this._calculateNewMax(); this._addClass( "ui-slider ui-slider-" + this.orientation, "ui-widget ui-widget-content" ); this._refresh(); this._animateOff = false; }, _refresh: function() { this._createRange(); this._createHandles(); this._setupEvents(); this._refreshValue(); }, _createHandles: function() { var i, handleCount, options = this.options, existingHandles = this.element.find( ".ui-slider-handle" ), handle = "<span tabindex='0'></span>", handles = []; handleCount = ( options.values && options.values.length ) \|\| 1; if ( existingHandles.length > handleCount ) { existingHandles.slice( handleCount ).remove(); existingHandles = existingHandles.slice( 0, handleCount ); } for ( i = existingHandles.length; i < handleCount; i++ ) { handles.push( handle ); } this.handles = existingHandles.add( $( handles.join( "" ) ).appendTo( this.element ) ); this._addClass( this.handles, "ui-slider-handle", "ui-state-default" ); this.handle = this.handles.eq( 0 ); this.handles.each( function( i ) { $( this ) .data( "ui-slider-handle-index", i ) .attr( "tabIndex", 0 ); } ); }, _createRange: function() { var options = this.options; if ( options.range ) { if ( options.range === true ) { if ( !options.values ) { options.values = [ this._valueMin(), this._valueMin() ]; } else if ( options.values.length && options.values.length !== 2 ) { options.values = [ options.values[ 0 ], options.values[ 0 ] ]; } else if ( Array.isArray( options.values ) ) { options.values = options.values.slice( 0 ); } } if ( !this.range \|\| !this.range.length ) { this.range = $( "<div>" ) .appendTo( this.element ); this._addClass( this.range, "ui-slider-range" ); } else { this._removeClass( this.range, "ui-slider-range-min ui-slider-range-max" ); // Handle range switching from true to min/max this.range.css( { "left": "", "bottom": "" } ); } if ( options.range === "min" \|\| options.range === "max" ) { this._addClass( this.range, "ui-slider-range-" + options.range ); } } else { if ( this.range ) { this.range.remove(); } this.range = null; } }, _setupEvents: function() { this._off( this.handles ); this._on( this.handles, this._handleEvents ); this._hoverable( this.handles ); this._focusable( this.handles ); }, _destroy: function() { this.handles.remove(); if ( this.range ) { this.range.remove(); } this._mouseDestroy(); }, _mouseCapture: function( event ) { var position, normValue, distance, closestHandle, index, allowed, offset, mouseOverHandle, that = this, o = this.options; if ( o.disabled ) { return false; } this.elementSize = { width: this.element.outerWidth(), height: this.element.outerHeight() }; this.elementOffset = this.element.offset(); position = { x: event.pageX, y: event.pageY }; normValue = this._normValueFromMouse( position ); distance = this._valueMax() - this._valueMin() + 1; this.handles.each( function( i ) { var thisDistance = Math.abs( normValue - that.values( i ) ); if ( ( distance > thisDistance ) \|\| ( distance === thisDistance && ( i === that._lastChangedValue \|\| that.values( i ) === o.min ) ) ) { distance = thisDistance; closestHandle = $( this ); index = i; } } ); allowed = this._start( event, index ); if ( allowed === false ) { return false; } this._mouseSliding = true; this._handleIndex = index; this._addClass( closestHandle, null, "ui-state-active" ); closestHandle.trigger( "focus" ); offset = closestHandle.offset(); mouseOverHandle = !$( event.target ).parents().addBack().is( ".ui-slider-handle" ); this._clickOffset = mouseOverHandle ? { left: 0, top: 0 } : { left: event.pageX - offset.left - ( closestHandle.width() / 2 ), top: event.pageY - offset.top - ( closestHandle.height() / 2 ) - ( parseInt( closestHandle.css( "borderTopWidth" ), 10 ) \|\| 0 ) - ( parseInt( closestHandle.css( "borderBottomWidth" ), 10 ) \|\| 0 ) + ( parseInt( closestHandle.css( "marginTop" ), 10 ) \|\| 0 ) }; if ( !this.handles.hasClass( "ui-state-hover" ) ) { this._slide( event, index, normValue ); } this._animateOff = true; return true; }, _mouseStart: function() { return true; }, _mouseDrag: function( event ) { var position = { x: event.pageX, y: event.pageY }, normValue = this._normValueFromMouse( position ); this._slide( event, this._handleIndex, normValue ); return false; }, _mouseStop: function( event ) { this._removeClass( this.handles, null, "ui-state-active" ); this._mouseSliding = false; this._stop( event, this._handleIndex ); this._change( event, this._handleIndex ); this._handleIndex = null; this._clickOffset = null; this._animateOff = false; return false; }, _detectOrientation: function() { this.orientation = ( this.options.orientation === "vertical" ) ? "vertical" : "horizontal"; }, _normValueFromMouse: function( position ) { var pixelTotal, pixelMouse, percentMouse, valueTotal, valueMouse; if ( this.orientation === "horizontal" ) { pixelTotal = this.elementSize.width; pixelMouse = position.x - this.elementOffset.left - ( this._clickOffset ? this._clickOffset.left : 0 ); } else { pixelTotal = this.elementSize.height; pixelMouse = position.y - this.elementOffset.top - ( this._clickOffset ? this._clickOffset.top : 0 ); } percentMouse = ( pixelMouse / pixelTotal ); if ( percentMouse > 1 ) { percentMouse = 1; } if ( percentMouse < 0 ) { percentMouse = 0; } if ( this.orientation === "vertical" ) { percentMouse = 1 - percentMouse; } valueTotal = this._valueMax() - this._valueMin(); valueMouse = this._valueMin() + percentMouse valueTotal; return this._trimAlignValue( valueMouse ); }, _uiHash: function( index, value, values ) { var uiHash = { handle: this.handles[ index ], handleIndex: index, value: value !== undefined ? value : this.value() }; if ( this._hasMultipleValues() ) { uiHash.value = value !== undefined ? value : this.values( index ); uiHash.values = values \|\| this.values(); } return uiHash; }, _hasMultipleValues: function() { return this.options.values && this.options.values.length; }, _start: function( event, index ) { return this._trigger( "start", event, this._uiHash( index ) ); }, _slide: function( event, index, newVal ) { var allowed, otherVal, currentValue = this.value(), newValues = this.values(); if ( this._hasMultipleValues() ) { otherVal = this.values( index ? 0 : 1 ); currentValue = this.values( index ); if ( this.options.values.length === 2 && this.options.range === true ) { newVal = index === 0 ? Math.min( otherVal, newVal ) : Math.max( otherVal, newVal ); } newValues[ index ] = newVal; } if ( newVal === currentValue ) { return; } allowed = this._trigger( "slide", event, this._uiHash( index, newVal, newValues ) ); // A slide can be canceled by returning false from the slide callback if ( allowed === false ) { return; } if ( this._hasMultipleValues() ) { this.values( index, newVal ); } else { this.value( newVal ); } }, _stop: function( event, index ) { this._trigger( "stop", event, this._uiHash( index ) ); }, _change: function( event, index ) { if ( !this._keySliding && !this._mouseSliding ) { //store the last changed value index for reference when handles overlap this._lastChangedValue = index; this._trigger( "change", event, this._uiHash( index ) ); } }, value: function( newValue ) { if ( arguments.length ) { this.options.value = this._trimAlignValue( newValue ); this._refreshValue(); this._change( null, 0 ); return; } return this._value(); }, values: function( index, newValue ) { var vals, newValues, i; if ( arguments.length > 1 ) { this.options.values[ index ] = this._trimAlignValue( newValue ); this._refreshValue(); this._change( null, index ); return; } if ( arguments.length ) { if ( Array.isArray( arguments[ 0 ] ) ) { vals = this.options.values; newValues = arguments[ 0 ]; for ( i = 0; i < vals.length; i += 1 ) { vals[ i ] = this._trimAlignValue( newValues[ i ] ); this._change( null, i ); } this._refreshValue(); } else { if ( this._hasMultipleValues() ) { return this._values( index ); } else { return this.value(); } } } else { return this._values(); } }, _setOption: function( key, value ) { var i, valsLength = 0; if ( key === "range" && this.options.range === true ) { if ( value === "min" ) { this.options.value = this._values( 0 ); this.options.values = null; } else if ( value === "max" ) { this.options.value = this._values( this.options.values.length - 1 ); this.options.values = null; } } if ( Array.isArray( this.options.values ) ) { valsLength = this.options.values.length; } this._super( key, value ); switch ( key ) { case "orientation": this._detectOrientation(); this._removeClass( "ui-slider-horizontal ui-slider-vertical" ) ._addClass( "ui-slider-" + this.orientation ); this._refreshValue(); if ( this.options.range ) { this._refreshRange( value ); } // Reset positioning from previous orientation this.handles.css( value === "horizontal" ? "bottom" : "left", "" ); break; case "value": this._animateOff = true; this._refreshValue(); this._change( null, 0 ); this._animateOff = false; break; case "values": this._animateOff = true; this._refreshValue(); // Start from the last handle to prevent unreachable handles (#9046) for ( i = valsLength - 1; i >= 0; i-- ) { this._change( null, i ); } this._animateOff = false; break; case "step": case "min": case "max": this._animateOff = true; this._calculateNewMax(); this._refreshValue(); this._animateOff = false; break; case "range": this._animateOff = true; this._refresh(); this._animateOff = false; break; } }, _setOptionDisabled: function( value ) { this._super( value ); this._toggleClass( null, "ui-state-disabled", !!value ); }, //internal value getter // _value() returns value trimmed by min and max, aligned by step _value: function() { var val = this.options.value; val = this._trimAlignValue( val ); return val; }, //internal values getter // _values() returns array of values trimmed by min and max, aligned by step // _values( index ) returns single value trimmed by min and max, aligned by step _values: function( index ) { var val, vals, i; if ( arguments.length ) { val = this.options.values[ index ]; val = this._trimAlignValue( val ); return val; } else if ( this._hasMultipleValues() ) { // .slice() creates a copy of the array // this copy gets trimmed by min and max and then returned vals = this.options.values.slice(); for ( i = 0; i < vals.length; i += 1 ) { vals[ i ] = this._trimAlignValue( vals[ i ] ); } return vals; } else { return []; } }, // Returns the step-aligned value that val is closest to, between (inclusive) min and max _trimAlignValue: function( val ) { if ( val <= this._valueMin() ) { return this._valueMin(); } if ( val >= this._valueMax() ) { return this._valueMax(); } var step = ( this.options.step > 0 ) ? this.options.step : 1, valModStep = ( val - this._valueMin() ) % step, alignValue = val - valModStep; if ( Math.abs( valModStep ) * 2 >= step ) { alignValue += ( valModStep > 0 ) ? step : ( -step ); } // Since JavaScript has problems with large floats, round // the final value to 5 digits after the decimal point (see #4124) return parseFloat( alignValue.toFixed( 5 ) ); }, _calculateNewMax: function() { var max = this.options.max, min = this._valueMin(), step = this.options.step, aboveMin = Math.round( ( max - min ) / step ) * step; max = aboveMin + min; if ( max > this.options.max ) { //If max is not divisible by step, rounding off may increase its value max -= step; } this.max = parseFloat( max.toFixed( this._precision() ) ); }, _precision: function() { var precision = this._precisionOf( this.options.step ); if ( this.options.min !== null ) { precision = Math.max( precision, this._precisionOf( this.options.min ) ); } return precision; }, _precisionOf: function( num ) { var str = num.toString(), decimal = str.indexOf( "." ); return decimal === -1 ? 0 : str.length - decimal - 1; }, _valueMin: function() { return this.options.min; }, _valueMax: function() { return this.max; }, _refreshRange: function( orientation ) { if ( orientation === "vertical" ) { this.range.css( { "width": "", "left": "" } ); } if ( orientation === "horizontal" ) { this.range.css( { "height": "", "bottom": "" } ); } }, _refreshValue: function() { var lastValPercent, valPercent, value, valueMin, valueMax, oRange = this.options.range, o = this.options, that = this, animate = ( !this._animateOff ) ? o.animate : false, _set = {}; if ( this._hasMultipleValues() ) { this.handles.each( function( i ) { valPercent = ( that.values( i ) - that._valueMin() ) / ( that._valueMax() - that._valueMin() ) * 100; _set[ that.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%"; $( this ).stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate ); if ( that.options.range === true ) { if ( that.orientation === "horizontal" ) { if ( i === 0 ) { that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { left: valPercent + "%" }, o.animate ); } if ( i === 1 ) { that.range[ animate ? "animate" : "css" ]( { width: ( valPercent - lastValPercent ) + "%" }, { queue: false, duration: o.animate } ); } } else { if ( i === 0 ) { that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { bottom: ( valPercent ) + "%" }, o.animate ); } if ( i === 1 ) { that.range[ animate ? "animate" : "css" ]( { height: ( valPercent - lastValPercent ) + "%" }, { queue: false, duration: o.animate } ); } } } lastValPercent = valPercent; } ); } else { value = this.value(); valueMin = this._valueMin(); valueMax = this._valueMax(); valPercent = ( valueMax !== valueMin ) ? ( value - valueMin ) / ( valueMax - valueMin ) * 100 : 0; _set[ this.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%"; this.handle.stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate ); if ( oRange === "min" && this.orientation === "horizontal" ) { this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { width: valPercent + "%" }, o.animate ); } if ( oRange === "max" && this.orientation === "horizontal" ) { this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { width: ( 100 - valPercent ) + "%" }, o.animate ); } if ( oRange === "min" && this.orientation === "vertical" ) { this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { height: valPercent + "%" }, o.animate ); } if ( oRange === "max" && this.orientation === "vertical" ) { this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { height: ( 100 - valPercent ) + "%" }, o.animate ); } } }, _handleEvents: { keydown: function( event ) { var allowed, curVal, newVal, step, index = $( event.target ).data( "ui-slider-handle-index" ); switch ( event.keyCode ) { case $.ui.keyCode.HOME: case $.ui.keyCode.END: case $.ui.keyCode.PAGE_UP: case $.ui.keyCode.PAGE_DOWN: case $.ui.keyCode.UP: case $.ui.keyCode.RIGHT: case $.ui.keyCode.DOWN: case $.ui.keyCode.LEFT: event.preventDefault(); if ( !this._keySliding ) { this._keySliding = true; this._addClass( $( event.target ), null, "ui-state-active" ); allowed = this._start( event, index ); if ( allowed === false ) { return; } } break; } step = this.options.step; if ( this._hasMultipleValues() ) { curVal = newVal = this.values( index ); } else { curVal = newVal = this.value(); } switch ( event.keyCode ) { case $.ui.keyCode.HOME: newVal = this._valueMin(); break; case $.ui.keyCode.END: newVal = this._valueMax(); break; case $.ui.keyCode.PAGE_UP: newVal = this._trimAlignValue( curVal + ( ( this._valueMax() - this._valueMin() ) / this.numPages ) ); break; case $.ui.keyCode.PAGE_DOWN: newVal = this._trimAlignValue( curVal - ( ( this._valueMax() - this._valueMin() ) / this.numPages ) ); break; case $.ui.keyCode.UP: case $.ui.keyCode.RIGHT: if ( curVal === this._valueMax() ) { return; } newVal = this._trimAlignValue( curVal + step ); break; case $.ui.keyCode.DOWN: case $.ui.keyCode.LEFT: if ( curVal === this._valueMin() ) { return; } newVal = this._trimAlignValue( curVal - step ); break; } this._slide( event, index, newVal ); }, keyup: function( event ) { var index = $( event.target ).data( "ui-slider-handle-index" ); if ( this._keySliding ) { this._keySliding = false; this._stop( event, index ); this._change( event, index ); this._removeClass( $( event.target ), null, "ui-state-active" ); } } } } ); } ); Back

Edit File : slider.js | Size : 19.14 KB

/*!
 * jQuery UI Slider 1.13.3
 * https://jqueryui.com
 *
 * Copyright OpenJS Foundation and other contributors
 * Released under the MIT license.
 * https://jquery.org/license
 */

//>>label: Slider
//>>group: Widgets
//>>description: Displays a flexible slider with ranges and accessibility via keyboard.
//>>docs: https://api.jqueryui.com/slider/
//>>demos: https://jqueryui.com/slider/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/slider.css
//>>css.theme: ../../themes/base/theme.css

( function( factory ) {
	"use strict";

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

// AMD. Register as an anonymous module.
		define( [
			"jquery",
			"./mouse",
			"../keycode",
			"../version",
			"../widget"
		], factory );
	} else {

// Browser globals
		factory( jQuery );
	}
} )( function( $ ) {
"use strict";

return $.widget( "ui.slider", $.ui.mouse, {
	version: "1.13.3",
	widgetEventPrefix: "slide",

options: {
		animate: false,
		classes: {
			"ui-slider": "ui-corner-all",
			"ui-slider-handle": "ui-corner-all",

// Note: ui-widget-header isn't the most fittingly semantic framework class for this
			// element, but worked best visually with a variety of themes
			"ui-slider-range": "ui-corner-all ui-widget-header"
		},
		distance: 0,
		max: 100,
		min: 0,
		orientation: "horizontal",
		range: false,
		step: 1,
		value: 0,
		values: null,

// Callbacks
		change: null,
		slide: null,
		start: null,
		stop: null
	},

// Number of pages in a slider
	// (how many times can you page up/down to go through the whole range)
	numPages: 5,

_create: function() {
		this._keySliding = false;
		this._mouseSliding = false;
		this._animateOff = true;
		this._handleIndex = null;
		this._detectOrientation();
		this._mouseInit();
		this._calculateNewMax();

this._addClass( "ui-slider ui-slider-" + this.orientation,
			"ui-widget ui-widget-content" );

this._refresh();

this._animateOff = false;
	},

_refresh: function() {
		this._createRange();
		this._createHandles();
		this._setupEvents();
		this._refreshValue();
	},

_createHandles: function() {
		var i, handleCount,
			options = this.options,
			existingHandles = this.element.find( ".ui-slider-handle" ),
			handle = "<span tabindex='0'></span>",
			handles = [];

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

if ( existingHandles.length > handleCount ) {
			existingHandles.slice( handleCount ).remove();
			existingHandles = existingHandles.slice( 0, handleCount );
		}

for ( i = existingHandles.length; i < handleCount; i++ ) {
			handles.push( handle );
		}

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

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

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

this.handles.each( function( i ) {
			$( this )
				.data( "ui-slider-handle-index", i )
				.attr( "tabIndex", 0 );
		} );
	},

_createRange: function() {
		var options = this.options;

if ( options.range ) {
			if ( options.range === true ) {
				if ( !options.values ) {
					options.values = [ this._valueMin(), this._valueMin() ];
				} else if ( options.values.length && options.values.length !== 2 ) {
					options.values = [ options.values[ 0 ], options.values[ 0 ] ];
				} else if ( Array.isArray( options.values ) ) {
					options.values = options.values.slice( 0 );
				}
			}

if ( !this.range || !this.range.length ) {
				this.range = $( "<div>" )
					.appendTo( this.element );

this._addClass( this.range, "ui-slider-range" );
			} else {
				this._removeClass( this.range, "ui-slider-range-min ui-slider-range-max" );

// Handle range switching from true to min/max
				this.range.css( {
					"left": "",
					"bottom": ""
				} );
			}
			if ( options.range === "min" || options.range === "max" ) {
				this._addClass( this.range, "ui-slider-range-" + options.range );
			}
		} else {
			if ( this.range ) {
				this.range.remove();
			}
			this.range = null;
		}
	},

_setupEvents: function() {
		this._off( this.handles );
		this._on( this.handles, this._handleEvents );
		this._hoverable( this.handles );
		this._focusable( this.handles );
	},

_destroy: function() {
		this.handles.remove();
		if ( this.range ) {
			this.range.remove();
		}

this._mouseDestroy();
	},

_mouseCapture: function( event ) {
		var position, normValue, distance, closestHandle, index, allowed, offset, mouseOverHandle,
			that = this,
			o = this.options;

if ( o.disabled ) {
			return false;
		}

this.elementSize = {
			width: this.element.outerWidth(),
			height: this.element.outerHeight()
		};
		this.elementOffset = this.element.offset();

position = { x: event.pageX, y: event.pageY };
		normValue = this._normValueFromMouse( position );
		distance = this._valueMax() - this._valueMin() + 1;
		this.handles.each( function( i ) {
			var thisDistance = Math.abs( normValue - that.values( i ) );
			if ( ( distance > thisDistance ) ||
				( distance === thisDistance &&
					( i === that._lastChangedValue || that.values( i ) === o.min ) ) ) {
				distance = thisDistance;
				closestHandle = $( this );
				index = i;
			}
		} );

allowed = this._start( event, index );
		if ( allowed === false ) {
			return false;
		}
		this._mouseSliding = true;

this._handleIndex = index;

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

offset = closestHandle.offset();
		mouseOverHandle = !$( event.target ).parents().addBack().is( ".ui-slider-handle" );
		this._clickOffset = mouseOverHandle ? { left: 0, top: 0 } : {
			left: event.pageX - offset.left - ( closestHandle.width() / 2 ),
			top: event.pageY - offset.top -
				( closestHandle.height() / 2 ) -
				( parseInt( closestHandle.css( "borderTopWidth" ), 10 ) || 0 ) -
				( parseInt( closestHandle.css( "borderBottomWidth" ), 10 ) || 0 ) +
				( parseInt( closestHandle.css( "marginTop" ), 10 ) || 0 )
		};

if ( !this.handles.hasClass( "ui-state-hover" ) ) {
			this._slide( event, index, normValue );
		}
		this._animateOff = true;
		return true;
	},

_mouseStart: function() {
		return true;
	},

_mouseDrag: function( event ) {
		var position = { x: event.pageX, y: event.pageY },
			normValue = this._normValueFromMouse( position );

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

return false;
	},

_mouseStop: function( event ) {
		this._removeClass( this.handles, null, "ui-state-active" );
		this._mouseSliding = false;

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

this._handleIndex = null;
		this._clickOffset = null;
		this._animateOff = false;

return false;
	},

_detectOrientation: function() {
		this.orientation = ( this.options.orientation === "vertical" ) ? "vertical" : "horizontal";
	},

_normValueFromMouse: function( position ) {
		var pixelTotal,
			pixelMouse,
			percentMouse,
			valueTotal,
			valueMouse;

if ( this.orientation === "horizontal" ) {
			pixelTotal = this.elementSize.width;
			pixelMouse = position.x - this.elementOffset.left -
				( this._clickOffset ? this._clickOffset.left : 0 );
		} else {
			pixelTotal = this.elementSize.height;
			pixelMouse = position.y - this.elementOffset.top -
				( this._clickOffset ? this._clickOffset.top : 0 );
		}

percentMouse = ( pixelMouse / pixelTotal );
		if ( percentMouse > 1 ) {
			percentMouse = 1;
		}
		if ( percentMouse < 0 ) {
			percentMouse = 0;
		}
		if ( this.orientation === "vertical" ) {
			percentMouse = 1 - percentMouse;
		}

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

return this._trimAlignValue( valueMouse );
	},

_uiHash: function( index, value, values ) {
		var uiHash = {
			handle: this.handles[ index ],
			handleIndex: index,
			value: value !== undefined ? value : this.value()
		};

if ( this._hasMultipleValues() ) {
			uiHash.value = value !== undefined ? value : this.values( index );
			uiHash.values = values || this.values();
		}

return uiHash;
	},

_hasMultipleValues: function() {
		return this.options.values && this.options.values.length;
	},

_start: function( event, index ) {
		return this._trigger( "start", event, this._uiHash( index ) );
	},

_slide: function( event, index, newVal ) {
		var allowed, otherVal,
			currentValue = this.value(),
			newValues = this.values();

if ( this._hasMultipleValues() ) {
			otherVal = this.values( index ? 0 : 1 );
			currentValue = this.values( index );

if ( this.options.values.length === 2 && this.options.range === true ) {
				newVal =  index === 0 ? Math.min( otherVal, newVal ) : Math.max( otherVal, newVal );
			}

newValues[ index ] = newVal;
		}

if ( newVal === currentValue ) {
			return;
		}

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

// A slide can be canceled by returning false from the slide callback
		if ( allowed === false ) {
			return;
		}

if ( this._hasMultipleValues() ) {
			this.values( index, newVal );
		} else {
			this.value( newVal );
		}
	},

_stop: function( event, index ) {
		this._trigger( "stop", event, this._uiHash( index ) );
	},

_change: function( event, index ) {
		if ( !this._keySliding && !this._mouseSliding ) {

//store the last changed value index for reference when handles overlap
			this._lastChangedValue = index;
			this._trigger( "change", event, this._uiHash( index ) );
		}
	},

value: function( newValue ) {
		if ( arguments.length ) {
			this.options.value = this._trimAlignValue( newValue );
			this._refreshValue();
			this._change( null, 0 );
			return;
		}

return this._value();
	},

values: function( index, newValue ) {
		var vals,
			newValues,
			i;

if ( arguments.length > 1 ) {
			this.options.values[ index ] = this._trimAlignValue( newValue );
			this._refreshValue();
			this._change( null, index );
			return;
		}

if ( arguments.length ) {
			if ( Array.isArray( arguments[ 0 ] ) ) {
				vals = this.options.values;
				newValues = arguments[ 0 ];
				for ( i = 0; i < vals.length; i += 1 ) {
					vals[ i ] = this._trimAlignValue( newValues[ i ] );
					this._change( null, i );
				}
				this._refreshValue();
			} else {
				if ( this._hasMultipleValues() ) {
					return this._values( index );
				} else {
					return this.value();
				}
			}
		} else {
			return this._values();
		}
	},

_setOption: function( key, value ) {
		var i,
			valsLength = 0;

if ( key === "range" && this.options.range === true ) {
			if ( value === "min" ) {
				this.options.value = this._values( 0 );
				this.options.values = null;
			} else if ( value === "max" ) {
				this.options.value = this._values( this.options.values.length - 1 );
				this.options.values = null;
			}
		}

if ( Array.isArray( this.options.values ) ) {
			valsLength = this.options.values.length;
		}

this._super( key, value );

switch ( key ) {
			case "orientation":
				this._detectOrientation();
				this._removeClass( "ui-slider-horizontal ui-slider-vertical" )
					._addClass( "ui-slider-" + this.orientation );
				this._refreshValue();
				if ( this.options.range ) {
					this._refreshRange( value );
				}

// Reset positioning from previous orientation
				this.handles.css( value === "horizontal" ? "bottom" : "left", "" );
				break;
			case "value":
				this._animateOff = true;
				this._refreshValue();
				this._change( null, 0 );
				this._animateOff = false;
				break;
			case "values":
				this._animateOff = true;
				this._refreshValue();

// Start from the last handle to prevent unreachable handles (#9046)
				for ( i = valsLength - 1; i >= 0; i-- ) {
					this._change( null, i );
				}
				this._animateOff = false;
				break;
			case "step":
			case "min":
			case "max":
				this._animateOff = true;
				this._calculateNewMax();
				this._refreshValue();
				this._animateOff = false;
				break;
			case "range":
				this._animateOff = true;
				this._refresh();
				this._animateOff = false;
				break;
		}
	},

_setOptionDisabled: function( value ) {
		this._super( value );

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

//internal value getter
	// _value() returns value trimmed by min and max, aligned by step
	_value: function() {
		var val = this.options.value;
		val = this._trimAlignValue( val );

return val;
	},

//internal values getter
	// _values() returns array of values trimmed by min and max, aligned by step
	// _values( index ) returns single value trimmed by min and max, aligned by step
	_values: function( index ) {
		var val,
			vals,
			i;

if ( arguments.length ) {
			val = this.options.values[ index ];
			val = this._trimAlignValue( val );

return val;
		} else if ( this._hasMultipleValues() ) {

// .slice() creates a copy of the array
			// this copy gets trimmed by min and max and then returned
			vals = this.options.values.slice();
			for ( i = 0; i < vals.length; i += 1 ) {
				vals[ i ] = this._trimAlignValue( vals[ i ] );
			}

return vals;
		} else {
			return [];
		}
	},

// Returns the step-aligned value that val is closest to, between (inclusive) min and max
	_trimAlignValue: function( val ) {
		if ( val <= this._valueMin() ) {
			return this._valueMin();
		}
		if ( val >= this._valueMax() ) {
			return this._valueMax();
		}
		var step = ( this.options.step > 0 ) ? this.options.step : 1,
			valModStep = ( val - this._valueMin() ) % step,
			alignValue = val - valModStep;

if ( Math.abs( valModStep ) * 2 >= step ) {
			alignValue += ( valModStep > 0 ) ? step : ( -step );
		}

// Since JavaScript has problems with large floats, round
		// the final value to 5 digits after the decimal point (see #4124)
		return parseFloat( alignValue.toFixed( 5 ) );
	},

_calculateNewMax: function() {
		var max = this.options.max,
			min = this._valueMin(),
			step = this.options.step,
			aboveMin = Math.round( ( max - min ) / step ) * step;
		max = aboveMin + min;
		if ( max > this.options.max ) {

//If max is not divisible by step, rounding off may increase its value
			max -= step;
		}
		this.max = parseFloat( max.toFixed( this._precision() ) );
	},

_precision: function() {
		var precision = this._precisionOf( this.options.step );
		if ( this.options.min !== null ) {
			precision = Math.max( precision, this._precisionOf( this.options.min ) );
		}
		return precision;
	},

_precisionOf: function( num ) {
		var str = num.toString(),
			decimal = str.indexOf( "." );
		return decimal === -1 ? 0 : str.length - decimal - 1;
	},

_valueMin: function() {
		return this.options.min;
	},

_valueMax: function() {
		return this.max;
	},

_refreshRange: function( orientation ) {
		if ( orientation === "vertical" ) {
			this.range.css( { "width": "", "left": "" } );
		}
		if ( orientation === "horizontal" ) {
			this.range.css( { "height": "", "bottom": "" } );
		}
	},

_refreshValue: function() {
		var lastValPercent, valPercent, value, valueMin, valueMax,
			oRange = this.options.range,
			o = this.options,
			that = this,
			animate = ( !this._animateOff ) ? o.animate : false,
			_set = {};

if ( this._hasMultipleValues() ) {
			this.handles.each( function( i ) {
				valPercent = ( that.values( i ) - that._valueMin() ) / ( that._valueMax() -
					that._valueMin() ) * 100;
				_set[ that.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%";
				$( this ).stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate );
				if ( that.options.range === true ) {
					if ( that.orientation === "horizontal" ) {
						if ( i === 0 ) {
							that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
								left: valPercent + "%"
							}, o.animate );
						}
						if ( i === 1 ) {
							that.range[ animate ? "animate" : "css" ]( {
								width: ( valPercent - lastValPercent ) + "%"
							}, {
								queue: false,
								duration: o.animate
							} );
						}
					} else {
						if ( i === 0 ) {
							that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
								bottom: ( valPercent ) + "%"
							}, o.animate );
						}
						if ( i === 1 ) {
							that.range[ animate ? "animate" : "css" ]( {
								height: ( valPercent - lastValPercent ) + "%"
							}, {
								queue: false,
								duration: o.animate
							} );
						}
					}
				}
				lastValPercent = valPercent;
			} );
		} else {
			value = this.value();
			valueMin = this._valueMin();
			valueMax = this._valueMax();
			valPercent = ( valueMax !== valueMin ) ?
					( value - valueMin ) / ( valueMax - valueMin ) * 100 :
					0;
			_set[ this.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%";
			this.handle.stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate );

if ( oRange === "min" && this.orientation === "horizontal" ) {
				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
					width: valPercent + "%"
				}, o.animate );
			}
			if ( oRange === "max" && this.orientation === "horizontal" ) {
				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
					width: ( 100 - valPercent ) + "%"
				}, o.animate );
			}
			if ( oRange === "min" && this.orientation === "vertical" ) {
				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
					height: valPercent + "%"
				}, o.animate );
			}
			if ( oRange === "max" && this.orientation === "vertical" ) {
				this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( {
					height: ( 100 - valPercent ) + "%"
				}, o.animate );
			}
		}
	},

_handleEvents: {
		keydown: function( event ) {
			var allowed, curVal, newVal, step,
				index = $( event.target ).data( "ui-slider-handle-index" );

switch ( event.keyCode ) {
				case $.ui.keyCode.HOME:
				case $.ui.keyCode.END:
				case $.ui.keyCode.PAGE_UP:
				case $.ui.keyCode.PAGE_DOWN:
				case $.ui.keyCode.UP:
				case $.ui.keyCode.RIGHT:
				case $.ui.keyCode.DOWN:
				case $.ui.keyCode.LEFT:
					event.preventDefault();
					if ( !this._keySliding ) {
						this._keySliding = true;
						this._addClass( $( event.target ), null, "ui-state-active" );
						allowed = this._start( event, index );
						if ( allowed === false ) {
							return;
						}
					}
					break;
			}

step = this.options.step;
			if ( this._hasMultipleValues() ) {
				curVal = newVal = this.values( index );
			} else {
				curVal = newVal = this.value();
			}

switch ( event.keyCode ) {
				case $.ui.keyCode.HOME:
					newVal = this._valueMin();
					break;
				case $.ui.keyCode.END:
					newVal = this._valueMax();
					break;
				case $.ui.keyCode.PAGE_UP:
					newVal = this._trimAlignValue(
						curVal + ( ( this._valueMax() - this._valueMin() ) / this.numPages )
					);
					break;
				case $.ui.keyCode.PAGE_DOWN:
					newVal = this._trimAlignValue(
						curVal - ( ( this._valueMax() - this._valueMin() ) / this.numPages ) );
					break;
				case $.ui.keyCode.UP:
				case $.ui.keyCode.RIGHT:
					if ( curVal === this._valueMax() ) {
						return;
					}
					newVal = this._trimAlignValue( curVal + step );
					break;
				case $.ui.keyCode.DOWN:
				case $.ui.keyCode.LEFT:
					if ( curVal === this._valueMin() ) {
						return;
					}
					newVal = this._trimAlignValue( curVal - step );
					break;
			}

this._slide( event, index, newVal );
		},
		keyup: function( event ) {
			var index = $( event.target ).data( "ui-slider-handle-index" );

if ( this._keySliding ) {
				this._keySliding = false;
				this._stop( event, index );
				this._change( event, index );
				this._removeClass( $( event.target ), null, "ui-state-active" );
			}
		}
	}
} );

} );

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