/*!

* jQuery UI Slider 1.11.4
* http://jqueryui.com
*
* Copyright jQuery Foundation and other contributors
* Released under the MIT license.
* http://jquery.org/license
*
* http://api.jqueryui.com/slider/
*/

(function( factory ) {

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

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

        // Browser globals
        factory( jQuery );
}

}(function( $ ) {

return $.widget( “ui.slider”, $.ui.mouse, {

version: "1.11.4",
widgetEventPrefix: "slide",

options: {
        animate: false,
        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.element
                .addClass( "ui-slider" +
                        " ui-slider-" + this.orientation +
                        " ui-widget" +
                        " ui-widget-content" +
                        " ui-corner-all");

        this._refresh();
        this._setOption( "disabled", this.options.disabled );

        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" ).addClass( "ui-state-default ui-corner-all" ),
                handle = "<span class='ui-slider-handle ui-state-default ui-corner-all' 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.handle = this.handles.eq( 0 );

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

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

        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></div>" )
                                .appendTo( this.element );

                        classes = "ui-slider-range" +
                        // note: this isn't the most fittingly semantic framework class for this element,
                        // but worked best visually with a variety of themes
                        " ui-widget-header ui-corner-all";
                } else {
                        this.range.removeClass( "ui-slider-range-min ui-slider-range-max" )
                                // Handle range switching from true to min/max
                                .css({
                                        "left": "",
                                        "bottom": ""
                                });
                }

                this.range.addClass( classes +
                        ( ( options.range === "min" || options.range === "max" ) ? " 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.element
                .removeClass( "ui-slider" +
                        " ui-slider-horizontal" +
                        " ui-slider-vertical" +
                        " ui-widget" +
                        " ui-widget-content" +
                        " ui-corner-all" );

        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;

        closestHandle
                .addClass( "ui-state-active" )
                .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.handles.removeClass( "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 );
},

_start: function( event, index ) {
        var uiHash = {
                handle: this.handles[ index ],
                value: this.value()
        };
        if ( this.options.values && this.options.values.length ) {
                uiHash.value = this.values( index );
                uiHash.values = this.values();
        }
        return this._trigger( "start", event, uiHash );
},

_slide: function( event, index, newVal ) {
        var otherVal,
                newValues,
                allowed;

        if ( this.options.values && this.options.values.length ) {
                otherVal = this.values( index ? 0 : 1 );

                if ( ( this.options.values.length === 2 && this.options.range === true ) &&
                                ( ( index === 0 && newVal > otherVal) || ( index === 1 && newVal < otherVal ) )
                        ) {
                        newVal = otherVal;
                }

                if ( newVal !== this.values( index ) ) {
                        newValues = this.values();
                        newValues[ index ] = newVal;
                        // A slide can be canceled by returning false from the slide callback
                        allowed = this._trigger( "slide", event, {
                                handle: this.handles[ index ],
                                value: newVal,
                                values: newValues
                        } );
                        otherVal = this.values( index ? 0 : 1 );
                        if ( allowed !== false ) {
                                this.values( index, newVal );
                        }
                }
        } else {
                if ( newVal !== this.value() ) {
                        // A slide can be canceled by returning false from the slide callback
                        allowed = this._trigger( "slide", event, {
                                handle: this.handles[ index ],
                                value: newVal
                        } );
                        if ( allowed !== false ) {
                                this.value( newVal );
                        }
                }
        }
},

_stop: function( event, index ) {
        var uiHash = {
                handle: this.handles[ index ],
                value: this.value()
        };
        if ( this.options.values && this.options.values.length ) {
                uiHash.value = this.values( index );
                uiHash.values = this.values();
        }

        this._trigger( "stop", event, uiHash );
},

_change: function( event, index ) {
        if ( !this._keySliding && !this._mouseSliding ) {
                var uiHash = {
                        handle: this.handles[ index ],
                        value: this.value()
                };
                if ( this.options.values && this.options.values.length ) {
                        uiHash.value = this.values( index );
                        uiHash.values = this.values();
                }

                //store the last changed value index for reference when handles overlap
                this._lastChangedValue = index;

                this._trigger( "change", event, uiHash );
        }
},

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.options.values && this.options.values.length ) {
                                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;
        }

        if ( key === "disabled" ) {
                this.element.toggleClass( "ui-state-disabled", !!value );
        }

        this._super( key, value );

        switch ( key ) {
                case "orientation":
                        this._detectOrientation();
                        this.element
                                .removeClass( "ui-slider-horizontal ui-slider-vertical" )
                                .addClass( "ui-slider-" + this.orientation );
                        this._refreshValue();

                        // 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();
                        for ( i = 0; i < valsLength; i += 1 ) {
                                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;
        }
},

//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.options.values && this.options.values.length ) {
                // .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.floor( ( +( max - min ).toFixed( this._precision() ) ) / step ) * step;
        max = aboveMin + min;
        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;
},

_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.options.values && this.options.values.length ) {
                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[ animate ? "animate" : "css" ]( { width: ( 100 - valPercent ) + "%" }, { queue: false, duration: 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[ animate ? "animate" : "css" ]( { height: ( 100 - valPercent ) + "%" }, { queue: false, duration: 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;
                                        $( event.target ).addClass( "ui-state-active" );
                                        allowed = this._start( event, index );
                                        if ( allowed === false ) {
                                                return;
                                        }
                                }
                                break;
                }

                step = this.options.step;
                if ( this.options.values && this.options.values.length ) {
                        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 );
                        $( event.target ).removeClass( "ui-state-active" );
                }
        }
}

});

}));