# DateField.js

    /**
     * @class Ext.form.DateField
     * @extends Ext.form.TriggerField
     * Provides a date input field with a {@link Ext.DatePicker} dropdown and automatic date validation.
     * @constructor
     * Create a new DateField
     * @param {Object} config
     */
    Ext.form.DateField = Ext.extend(Ext.form.TriggerField,  {
        /**
         * @cfg {String} format
         * The default date format string which can be overriden for localization support.  The format must be
         * valid according to {@link Date#parseDate} (defaults to 'm/d/Y').
         */
        format : "m/d/Y",
        /**
         * @cfg {String} altFormats
         * Multiple date formats separated by "|" to try when parsing a user input value and it doesn't match the defined
         * format (defaults to 'm/d/Y|n/j/Y|n/j/y|m/j/y|n/d/y|m/j/Y|n/d/Y|m-d-y|m-d-Y|m/d|m-d|md|mdy|mdY|d|Y-m-d').
         */
        altFormats : "m/d/Y|n/j/Y|n/j/y|m/j/y|n/d/y|m/j/Y|n/d/Y|m-d-y|m-d-Y|m/d|m-d|md|mdy|mdY|d|Y-m-d",
        /**
         * @cfg {String} disabledDaysText
         * The tooltip to display when the date falls on a disabled day (defaults to 'Disabled')
         */
        disabledDaysText : "Disabled",
        /**
         * @cfg {String} disabledDatesText
         * The tooltip text to display when the date falls on a disabled date (defaults to 'Disabled')
         */
        disabledDatesText : "Disabled",
        /**
         * @cfg {String} minText
         * The error text to display when the date in the cell is before minValue (defaults to
         * 'The date in this field must be after {minValue}').
         */
        minText : "The date in this field must be equal to or after {0}",
        /**
         * @cfg {String} maxText
         * The error text to display when the date in the cell is after maxValue (defaults to
         * 'The date in this field must be before {maxValue}').
         */
        maxText : "The date in this field must be equal to or before {0}",
        /**
         * @cfg {String} invalidText
         * The error text to display when the date in the field is invalid (defaults to
         * '{value} is not a valid date - it must be in the format {format}').
         */
        invalidText : "{0} is not a valid date - it must be in the format {1}",
        /**
         * @cfg {String} triggerClass
         * An additional CSS class used to style the trigger button.  The trigger will always get the
         * class 'x-form-trigger' and triggerClass will be <b>appended</b> if specified (defaults to 'x-form-date-trigger'
         * which displays a calendar icon).
         */
        triggerClass : 'x-form-date-trigger',
        /**
         * @cfg {Boolean} showToday
         * False to hide the footer area of the DatePicker containing the Today button and disable the keyboard
         * handler for spacebar that selects the current date (defaults to true).
         */
        showToday : true,
        /**
         * @cfg {Date/String} minValue
         * The minimum allowed date. Can be either a Javascript date object or a string date in a
         * valid format (defaults to null).
         */
    // holder
    /***
         * @cfg {Date/String} maxValue
         * The maximum allowed date. Can be either a Javascript date object or a string date in a
         * valid format (defaults to null).
         */
    // holder
    /***
         * @cfg {Array} disabledDays
         * An array of days to disable, 0 based. For example, [0, 6] disables Sunday and Saturday (defaults to null).
         */
    // holder
    /***
         * @cfg {Array} disabledDates
         * An array of "dates" to disable, as strings. These strings will be used to build a dynamic regular
         * expression so they are very powerful. Some examples:
         * <ul>
         * <li>["03/08/2003", "09/16/2003"] would disable those exact dates</li>
         * <li>["03/08", "09/16"] would disable those days for every year</li>
         * <li>["^03/08"] would only match the beginning (useful if you are using short years)</li>
         * <li>["03/../2006"] would disable every day in March 2006</li>
         * <li>["^03"] would disable every day in every March</li>
         * </ul>
         * Note that the format of the dates included in the array should exactly match the {@link #format} config.
         * In order to support regular expressions, if you are using a date format that has "." in it, you will have to
         * escape the dot when restricting dates. For example: ["03\\.08\\.03"].
         */
    // holder
    /***
         * @cfg {String/Object} autoCreate
         * A DomHelper element spec, or true for a default element spec (defaults to
         * {tag: "input", type: "text", size: "10", autocomplete: "off"})
         */

        // private
        defaultAutoCreate : {tag: "input", type: "text", size: "10", autocomplete: "off"},

        initComponent : function(){
            Ext.form.DateField.superclass.initComponent.call(this);

            this.addEvents(
                /**
                 * @event select
                 * Fires when a date is selected via the date picker.
                 * @param {Ext.form.DateField} this
                 * @param {Date} date The date that was selected
                 */
                'select'
            );

            if(typeof this.minValue == "string"){
                this.minValue = this.parseDate(this.minValue);
            }
            if(typeof this.maxValue == "string"){
                this.maxValue = this.parseDate(this.maxValue);
            }
            this.disabledDatesRE = null;
            this.initDisabledDays();
        },

        // private
        initDisabledDays : function(){
            if(this.disabledDates){
                var dd = this.disabledDates;
                var re = "(?:";
                for(var i = 0; i < dd.length; i++){
                    re += dd[i];
                    if(i != dd.length-1) re += "|";
                }
                this.disabledDatesRE = new RegExp(re + ")");
            }
        },

        /**
         * Replaces any existing disabled dates with new values and refreshes the DatePicker.
         * @param {Array} disabledDates An array of date strings (see the {@link #disabledDates} config
         * for details on supported values) used to disable a pattern of dates.
         */
        setDisabledDates : function(dd){
            this.disabledDates = dd;
            this.initDisabledDays();
            if(this.menu){
                this.menu.picker.setDisabledDates(this.disabledDatesRE);
            }
        },

        /**
         * Replaces any existing disabled days (by index, 0-6) with new values and refreshes the DatePicker.
         * @param {Array} disabledDays An array of disabled day indexes. See the {@link #disabledDays} config
         * for details on supported values.
         */
        setDisabledDays : function(dd){
            this.disabledDays = dd;
            if(this.menu){
                this.menu.picker.setDisabledDays(dd);
            }
        },

        /**
         * Replaces any existing {@link #minValue} with the new value and refreshes the DatePicker.
         * @param {Date} value The minimum date that can be selected
         */
        setMinValue : function(dt){
            this.minValue = (typeof dt == "string" ? this.parseDate(dt) : dt);
            if(this.menu){
                this.menu.picker.setMinDate(this.minValue);
            }
        },

        /**
         * Replaces any existing {@link #maxValue} with the new value and refreshes the DatePicker.
         * @param {Date} value The maximum date that can be selected
         */
        setMaxValue : function(dt){
            this.maxValue = (typeof dt == "string" ? this.parseDate(dt) : dt);
            if(this.menu){
                this.menu.picker.setMaxDate(this.maxValue);
            }
        },

        // private
        validateValue : function(value){
            value = this.formatDate(value);
            if(!Ext.form.DateField.superclass.validateValue.call(this, value)){
                return false;
            }
            if(value.length < 1){ // if it's blank and textfield didn't flag it then it's valid
                 return true;
            }
            var svalue = value;
            value = this.parseDate(value);
            if(!value){
                this.markInvalid(String.format(this.invalidText, svalue, this.format));
                return false;
            }
            var time = value.getTime();
            if(this.minValue && time < this.minValue.getTime()){
                this.markInvalid(String.format(this.minText, this.formatDate(this.minValue)));
                return false;
            }
            if(this.maxValue && time > this.maxValue.getTime()){
                this.markInvalid(String.format(this.maxText, this.formatDate(this.maxValue)));
                return false;
            }
            if(this.disabledDays){
                var day = value.getDay();
                for(var i = 0; i < this.disabledDays.length; i++) {
                	if(day === this.disabledDays[i]){
                	    this.markInvalid(this.disabledDaysText);
                        return false;
                	}
                }
            }
            var fvalue = this.formatDate(value);
            if(this.disabledDatesRE && this.disabledDatesRE.test(fvalue)){
                this.markInvalid(String.format(this.disabledDatesText, fvalue));
                return false;
            }
            return true;
        },

        // private
        // Provides logic to override the default TriggerField.validateBlur which just returns true
        validateBlur : function(){
            return !this.menu || !this.menu.isVisible();
        },

        /**
         * Returns the current date value of the date field.
         * @return {Date} The date value
         */
        getValue : function(){
            return this.parseDate(Ext.form.DateField.superclass.getValue.call(this)) || "";
        },

        /**
         * Sets the value of the date field.  You can pass a date object or any string that can be parsed into a valid
         * date, using DateField.format as the date format, according to the same rules as {@link Date#parseDate}
         * (the default format used is "m/d/Y").
         * <br />Usage:
         * <pre><code>
    //All of these calls set the same date value (May 4, 2006)

    //Pass a date object:
    var dt = new Date('5/4/2006');
    dateField.setValue(dt);

    //Pass a date string (default format):
    dateField.setValue('05/04/2006');

    //Pass a date string (custom format):
    dateField.format = 'Y-m-d';
    dateField.setValue('2006-05-04');
    </code></pre>
         * @param {String/Date} date The date or valid date string
         */
        setValue : function(date){
            Ext.form.DateField.superclass.setValue.call(this, this.formatDate(this.parseDate(date)));
        },

        // private
        parseDate : function(value){
            if(!value || Ext.isDate(value)){
                return value;
            }
            var v = Date.parseDate(value, this.format);
            if(!v && this.altFormats){
                if(!this.altFormatsArray){
                    this.altFormatsArray = this.altFormats.split("|");
                }
                for(var i = 0, len = this.altFormatsArray.length; i < len && !v; i++){
                    v = Date.parseDate(value, this.altFormatsArray[i]);
                }
            }
            return v;
        },

        // private
        onDestroy : function(){
            if(this.menu) {
                this.menu.destroy();
            }
            Ext.form.DateField.superclass.onDestroy.call(this);
        },

        // private
        formatDate : function(date){
            return Ext.isDate(date) ? date.dateFormat(this.format) : date;
        },

        // private
        menuListeners : {
            select: function(m, d){
                this.setValue(d);
                this.fireEvent('select', this, d);
            },
            show : function(){ // retain focus styling
                this.onFocus();
            },
            hide : function(){
                this.focus.defer(10, this);
                var ml = this.menuListeners;
                this.menu.un("select", ml.select,  this);
                this.menu.un("show", ml.show,  this);
                this.menu.un("hide", ml.hide,  this);
            }
        },

        /**
         * @method onTriggerClick
         * @hide
         */
        // private
        // Implements the default empty TriggerField.onTriggerClick function to display the DatePicker
        onTriggerClick : function(){
            if(this.disabled){
                return;
            }
            if(this.menu == null){
                this.menu = new Ext.menu.DateMenu();
            }
            Ext.apply(this.menu.picker,  {
                minDate : this.minValue,
                maxDate : this.maxValue,
                disabledDatesRE : this.disabledDatesRE,
                disabledDatesText : this.disabledDatesText,
                disabledDays : this.disabledDays,
                disabledDaysText : this.disabledDaysText,
                format : this.format,
                showToday : this.showToday,
                minText : String.format(this.minText, this.formatDate(this.minValue)),
                maxText : String.format(this.maxText, this.formatDate(this.maxValue))
            });
            this.menu.on(Ext.apply({}, this.menuListeners, {
                scope:this
            }));
            this.menu.picker.setValue(this.getValue() || new Date());
            this.menu.show(this.el, "tl-bl?");
        },

        // private
        beforeBlur : function(){
            var v = this.parseDate(this.getRawValue());
            if(v){
                this.setValue(v);
            }
        }

        /**
         * @cfg {Boolean} grow @hide
         */
    // holder
    /***
         * @cfg {Number} growMin @hide
         */
    // holder
    /***
         * @cfg {Number} growMax @hide
         */
    // holder
    /***
         * @hide
         * @method autoSize
         */
    });
    Ext.reg('datefield', Ext.form.DateField);

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