kuasha/cosmos

/*!
 * jQuery UI Spinner 1.11.0
 * http://jqueryui.com
 *
 * Copyright 2014 jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * http://api.jqueryui.com/spinner/
 */
(function( factory ) {
    if ( typeof define === "function" && define.amd ) {

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

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

function spinner_modifier( fn ) {
    return function() {
        var previous = this.element.val();
        fn.apply( this, arguments );
        this._refresh();
        if ( previous !== this.element.val() ) {
            this._trigger( "change" );
        }
    };
}

return $.widget( "ui.spinner", {
    version: "1.11.0",
    defaultElement: "<input>",
    widgetEventPrefix: "spin",
    options: {
        culture: null,
        icons: {
            down: "ui-icon-triangle-1-s",
            up: "ui-icon-triangle-1-n"
        },
        incremental: true,
        max: null,
        min: null,
        numberFormat: null,
        page: 10,
        step: 1,

        change: null,
        spin: null,
        start: null,
        stop: null
    },

    _create: function() {
        // handle string values that need to be parsed
        this._setOption( "max", this.options.max );
        this._setOption( "min", this.options.min );
        this._setOption( "step", this.options.step );

        // Only format if there is a value, prevents the field from being marked
        // as invalid in Firefox, see #9573.
        if ( this.value() !== "" ) {
            // Format the value, but don't constrain.
            this._value( this.element.val(), true );
        }

        this._draw();
        this._on( this._events );
        this._refresh();

        // turning off autocomplete prevents the browser from remembering the
        // value when navigating through history, so we re-enable autocomplete
        // if the page is unloaded before the widget is destroyed. #7790
        this._on( this.window, {
            beforeunload: function() {
                this.element.removeAttr( "autocomplete" );
            }
        });
    },

    _getCreateOptions: function() {
        var options = {},
            element = this.element;

        $.each( [ "min", "max", "step" ], function( i, option ) {
            var value = element.attr( option );
            if ( value !== undefined && value.length ) {
                options[ option ] = value;
            }
        });

        return options;
    },

    _events: {
        keydown: function( event ) {
            if ( this._start( event ) && this._keydown( event ) ) {
                event.preventDefault();
            }
        },
        keyup: "_stop",
        focus: function() {
            this.previous = this.element.val();
        },
        blur: function( event ) {
            if ( this.cancelBlur ) {
                delete this.cancelBlur;
                return;
            }

            this._stop();
            this._refresh();
            if ( this.previous !== this.element.val() ) {
                this._trigger( "change", event );
            }
        },
        mousewheel: function( event, delta ) {
            if ( !delta ) {
                return;
            }
            if ( !this.spinning && !this._start( event ) ) {
                return false;
            }

            this._spin( (delta > 0 ? 1 : -1) * this.options.step, event );
            clearTimeout( this.mousewheelTimer );
            this.mousewheelTimer = this._delay(function() {
                if ( this.spinning ) {
                    this._stop( event );
                }
            }, 100 );
            event.preventDefault();
        },
        "mousedown .ui-spinner-button": function( event ) {
            var previous;

            // We never want the buttons to have focus; whenever the user is
            // interacting with the spinner, the focus should be on the input.
            // If the input is focused then this.previous is properly set from
            // when the input first received focus. If the input is not focused
            // then we need to set this.previous based on the value before spinning.
            previous = this.element[0] === this.document[0].activeElement ?
                this.previous : this.element.val();
            function checkFocus() {
                var isActive = this.element[0] === this.document[0].activeElement;
                if ( !isActive ) {
                    this.element.focus();
                    this.previous = previous;
                    // support: IE
                    // IE sets focus asynchronously, so we need to check if focus
                    // moved off of the input because the user clicked on the button.
                    this._delay(function() {
                        this.previous = previous;
                    });
                }
            }

            // ensure focus is on (or stays on) the text field
            event.preventDefault();
            checkFocus.call( this );

            // support: IE
            // IE doesn't prevent moving focus even with event.preventDefault()
            // so we set a flag to know when we should ignore the blur event
            // and check (again) if focus moved off of the input.
            this.cancelBlur = true;
            this._delay(function() {
                delete this.cancelBlur;
                checkFocus.call( this );
            });

            if ( this._start( event ) === false ) {
                return;
            }

            this._repeat( null, $( event.currentTarget ).hasClass( "ui-spinner-up" ) ? 1 : -1, event );
        },
        "mouseup .ui-spinner-button": "_stop",
        "mouseenter .ui-spinner-button": function( event ) {
            // button will add ui-state-active if mouse was down while mouseleave and kept down
            if ( !$( event.currentTarget ).hasClass( "ui-state-active" ) ) {
                return;
            }

            if ( this._start( event ) === false ) {
                return false;
            }
            this._repeat( null, $( event.currentTarget ).hasClass( "ui-spinner-up" ) ? 1 : -1, event );
        },
        // TODO: do we really want to consider this a stop?
        // shouldn't we just stop the repeater and wait until mouseup before
        // we trigger the stop event?
        "mouseleave .ui-spinner-button": "_stop"
    },

    _draw: function() {
        var uiSpinner = this.uiSpinner = this.element
            .addClass( "ui-spinner-input" )
            .attr( "autocomplete", "off" )
            .wrap( this._uiSpinnerHtml() )
            .parent()
                // add buttons
                .append( this._buttonHtml() );

        this.element.attr( "role", "spinbutton" );

        // button bindings
        this.buttons = uiSpinner.find( ".ui-spinner-button" )
            .attr( "tabIndex", -1 )
            .button()
            .removeClass( "ui-corner-all" );

        // IE 6 doesn't understand height: 50% for the buttons
        // unless the wrapper has an explicit height
        if ( this.buttons.height() > Math.ceil( uiSpinner.height() * 0.5 ) &&
                uiSpinner.height() > 0 ) {
            uiSpinner.height( uiSpinner.height() );
        }

        // disable spinner if element was already disabled
        if ( this.options.disabled ) {
            this.disable();
        }
    },

    _keydown: function( event ) {
        var options = this.options,
            keyCode = $.ui.keyCode;

        switch ( event.keyCode ) {
        case keyCode.UP:
            this._repeat( null, 1, event );
            return true;
        case keyCode.DOWN:
            this._repeat( null, -1, event );
            return true;
        case keyCode.PAGE_UP:
            this._repeat( null, options.page, event );
            return true;
        case keyCode.PAGE_DOWN:
            this._repeat( null, -options.page, event );
            return true;
        }

        return false;
    },

    _uiSpinnerHtml: function() {
        return "<span class='ui-spinner ui-widget ui-widget-content ui-corner-all'></span>";
    },

    _buttonHtml: function() {
        return "" +
            "<a class='ui-spinner-button ui-spinner-up ui-corner-tr'>" +
                "<span class='ui-icon " + this.options.icons.up + "'>&#9650;</span>" +
            "</a>" +
            "<a class='ui-spinner-button ui-spinner-down ui-corner-br'>" +
                "<span class='ui-icon " + this.options.icons.down + "'>&#9660;</span>" +
            "</a>";
    },

    _start: function( event ) {
        if ( !this.spinning && this._trigger( "start", event ) === false ) {
            return false;
        }

        if ( !this.counter ) {
            this.counter = 1;
        }
        this.spinning = true;
        return true;
    },

    _repeat: function( i, steps, event ) {
        i = i || 500;

        clearTimeout( this.timer );
        this.timer = this._delay(function() {
            this._repeat( 40, steps, event );
        }, i );

        this._spin( steps * this.options.step, event );
    },

    _spin: function( step, event ) {
        var value = this.value() || 0;

        if ( !this.counter ) {
            this.counter = 1;
        }

        value = this._adjustValue( value + step * this._increment( this.counter ) );

        if ( !this.spinning || this._trigger( "spin", event, { value: value } ) !== false) {
            this._value( value );
            this.counter++;
        }
    },

    _increment: function( i ) {
        var incremental = this.options.incremental;

        if ( incremental ) {
            return $.isFunction( incremental ) ?
                incremental( i ) :
                Math.floor( i * i * i / 50000 - i * i / 500 + 17 * i / 200 + 1 );
        }

        return 1;
    },

    _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;
    },

    _adjustValue: function( value ) {
        var base, aboveMin,
            options = this.options;

        // make sure we're at a valid step
        // - find out where we are relative to the base (min or 0)
        base = options.min !== null ? options.min : 0;
        aboveMin = value - base;
        // - round to the nearest step
        aboveMin = Math.round(aboveMin / options.step) * options.step;
        // - rounding is based on 0, so adjust back to our base
        value = base + aboveMin;

        // fix precision from bad JS floating point math
        value = parseFloat( value.toFixed( this._precision() ) );

        // clamp the value
        if ( options.max !== null && value > options.max) {
            return options.max;
        }
        if ( options.min !== null && value < options.min ) {
            return options.min;
        }

        return value;
    },

    _stop: function( event ) {
        if ( !this.spinning ) {
            return;
        }

        clearTimeout( this.timer );
        clearTimeout( this.mousewheelTimer );
        this.counter = 0;
        this.spinning = false;
        this._trigger( "stop", event );
    },

    _setOption: function( key, value ) {
        if ( key === "culture" || key === "numberFormat" ) {
            var prevValue = this._parse( this.element.val() );
            this.options[ key ] = value;
            this.element.val( this._format( prevValue ) );
            return;
        }

        if ( key === "max" || key === "min" || key === "step" ) {
            if ( typeof value === "string" ) {
                value = this._parse( value );
            }
        }
        if ( key === "icons" ) {
            this.buttons.first().find( ".ui-icon" )
                .removeClass( this.options.icons.up )
                .addClass( value.up );
            this.buttons.last().find( ".ui-icon" )
                .removeClass( this.options.icons.down )
                .addClass( value.down );
        }

        this._super( key, value );

        if ( key === "disabled" ) {
            this.widget().toggleClass( "ui-state-disabled", !!value );
            this.element.prop( "disabled", !!value );
            this.buttons.button( value ? "disable" : "enable" );
        }
    },

    _setOptions: spinner_modifier(function( options ) {
        this._super( options );
    }),

    _parse: function( val ) {
        if ( typeof val === "string" && val !== "" ) {
            val = window.Globalize && this.options.numberFormat ?
                Globalize.parseFloat( val, 10, this.options.culture ) : +val;
        }
        return val === "" || isNaN( val ) ? null : val;
    },

    _format: function( value ) {
        if ( value === "" ) {
            return "";
        }
        return window.Globalize && this.options.numberFormat ?
            Globalize.format( value, this.options.numberFormat, this.options.culture ) :
            value;
    },

    _refresh: function() {
        this.element.attr({
            "aria-valuemin": this.options.min,
            "aria-valuemax": this.options.max,
            // TODO: what should we do with values that can't be parsed?
            "aria-valuenow": this._parse( this.element.val() )
        });
    },

    isValid: function() {
        var value = this.value();

        // null is invalid
        if ( value === null ) {
            return false;
        }

        // if value gets adjusted, it's invalid
        return value === this._adjustValue( value );
    },

    // update the value without triggering change
    _value: function( value, allowAny ) {
        var parsed;
        if ( value !== "" ) {
            parsed = this._parse( value );
            if ( parsed !== null ) {
                if ( !allowAny ) {
                    parsed = this._adjustValue( parsed );
                }
                value = this._format( parsed );
            }
        }
        this.element.val( value );
        this._refresh();
    },

    _destroy: function() {
        this.element
            .removeClass( "ui-spinner-input" )
            .prop( "disabled", false )
            .removeAttr( "autocomplete" )
            .removeAttr( "role" )
            .removeAttr( "aria-valuemin" )
            .removeAttr( "aria-valuemax" )
            .removeAttr( "aria-valuenow" );
        this.uiSpinner.replaceWith( this.element );
    },

    stepUp: spinner_modifier(function( steps ) {
        this._stepUp( steps );
    }),
    _stepUp: function( steps ) {
        if ( this._start() ) {
            this._spin( (steps || 1) * this.options.step );
            this._stop();
        }
    },

    stepDown: spinner_modifier(function( steps ) {
        this._stepDown( steps );
    }),
    _stepDown: function( steps ) {
        if ( this._start() ) {
            this._spin( (steps || 1) * -this.options.step );
            this._stop();
        }
    },

    pageUp: spinner_modifier(function( pages ) {
        this._stepUp( (pages || 1) * this.options.page );
    }),

    pageDown: spinner_modifier(function( pages ) {
        this._stepDown( (pages || 1) * this.options.page );
    }),

    value: function( newVal ) {
        if ( !arguments.length ) {
            return this._parse( this.element.val() );
        }
        spinner_modifier( this._value ).call( this, newVal );
    },

    widget: function() {
        return this.uiSpinner;
    }
});

}));