trotzig/diffux

define([
    "../core",
    "./support",
    "../core/init"
], function( jQuery, support ) {

var rreturn = /\r/g;

jQuery.fn.extend({
    val: function( value ) {
        var hooks, ret, isFunction,
            elem = this[0];

        if ( !arguments.length ) {
            if ( elem ) {
                hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];

                if ( hooks && "get" in hooks && (ret = hooks.get( elem, "value" )) !== undefined ) {
                    return ret;
                }

                ret = elem.value;

                return typeof ret === "string" ?
                    // Handle most common string cases
                    ret.replace(rreturn, "") :
                    // Handle cases where value is null/undef or number
                    ret == null ? "" : ret;
            }

            return;
        }

        isFunction = jQuery.isFunction( value );

        return this.each(function( i ) {
            var val;

            if ( this.nodeType !== 1 ) {
                return;
            }

            if ( isFunction ) {
                val = value.call( this, i, jQuery( this ).val() );
            } else {
                val = value;
            }

            // Treat null/undefined as ""; convert numbers to string
            if ( val == null ) {
                val = "";

            } else if ( typeof val === "number" ) {
                val += "";

            } else if ( jQuery.isArray( val ) ) {
                val = jQuery.map( val, function( value ) {
                    return value == null ? "" : value + "";
                });
            }

            hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];

            // If set returns undefined, fall back to normal setting
            if ( !hooks || !("set" in hooks) || hooks.set( this, val, "value" ) === undefined ) {
                this.value = val;
            }
        });
    }
});

jQuery.extend({
    valHooks: {
        option: {
            get: function( elem ) {
                var val = jQuery.find.attr( elem, "value" );
                return val != null ?
                    val :
                    // Support: IE10-11+
                    // option.text throws exceptions (#14686, #14858)
                    jQuery.trim( jQuery.text( elem ) );
            }
        },
        select: {
            get: function( elem ) {
                var value, option,
                    options = elem.options,
                    index = elem.selectedIndex,
                    one = elem.type === "select-one" || index < 0,
                    values = one ? null : [],
                    max = one ? index + 1 : options.length,
                    i = index < 0 ?
                        max :
                        one ? index : 0;

                // Loop through all the selected options
                for ( ; i < max; i++ ) {
                    option = options[ i ];

                    // IE6-9 doesn't update selected after form reset (#2551)
                    if ( ( option.selected || i === index ) &&
                            // Don't return options that are disabled or in a disabled optgroup
                            ( support.optDisabled ? !option.disabled : option.getAttribute( "disabled" ) === null ) &&
                            ( !option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {

                        // Get the specific value for the option
                        value = jQuery( option ).val();

                        // We don't need an array for one selects
                        if ( one ) {
                            return value;
                        }

                        // Multi-Selects return an array
                        values.push( value );
                    }
                }

                return values;
            },

            set: function( elem, value ) {
                var optionSet, option,
                    options = elem.options,
                    values = jQuery.makeArray( value ),
                    i = options.length;

                while ( i-- ) {
                    option = options[ i ];
                    if ( (option.selected = jQuery.inArray( option.value, values ) >= 0) ) {
                        optionSet = true;
                    }
                }

                // Force browsers to behave consistently when non-matching value is set
                if ( !optionSet ) {
                    elem.selectedIndex = -1;
                }
                return values;
            }
        }
    }
});

// Radios and checkboxes getter/setter
jQuery.each([ "radio", "checkbox" ], function() {
    jQuery.valHooks[ this ] = {
        set: function( elem, value ) {
            if ( jQuery.isArray( value ) ) {
                return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
            }
        }
    };
    if ( !support.checkOn ) {
        jQuery.valHooks[ this ].get = function( elem ) {
            return elem.getAttribute("value") === null ? "on" : elem.value;
        };
    }
});

});