ru-se.com

slider.js (19516B)

---

 /*!
  * jQuery UI Slider 1.12.1
  * http://jqueryui.com
  *
  * Copyright jQuery Foundation and other contributors
  * Released under the MIT license.
  * http://jquery.org/license
  */
 
 //>>label: Slider
 //>>group: Widgets
 //>>description: Displays a flexible slider with ranges and accessibility via keyboard.
 //>>docs: http://api.jqueryui.com/slider/
 //>>demos: http://jqueryui.com/slider/
 //>>css.structure: ../../themes/base/core.css
 //>>css.structure: ../../themes/base/slider.css
 //>>css.theme: ../../themes/base/theme.css
 
 ( function( factory ) {
 	if ( typeof define === "function" && define.amd ) {
 
 		// AMD. Register as an anonymous module.
 		define( [
 			"jquery",
 			"./mouse",
 			"./core"
 		], factory );
 	} else {
 
 		// Browser globals
 		factory( jQuery );
 	}
 }( function( $ ) {
 
 return $.widget( "ui.slider", $.ui.mouse, {
 	version: "1.12.1",
 	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 ( $.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 ( $.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 ( $.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" );
 			}
 		}
 	}
 } );
 
 } ) );