/*
 * Ext JS Library 2.0 Copyright(c) 2006-2007, Ext JS, LLC. licensing@extjs.com
 * 
 * http://extjs.com/license
 */

/**
 * @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|m-d-y|m-d-Y|m/d|m-d|d').
	 */
	altFormats : "m/d/Y|m-d-y|m-d-Y|m/d|m-d|md|mdy|mdY|d|Y-m-d",
	/**
	 * @cfg {Array} disabledDays An array of days to disable, 0 based. For
	 *      example, [0, 6] disables Sunday and Saturday (defaults to null).
	 */
	disabledDays : null,
	/**
	 * @cfg {String} disabledDaysText The tooltip to display when the date falls
	 *      on a disabled day (defaults to 'Disabled')
	 */
	disabledDaysText : "Disabled",
	/**
	 * @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>
	 *      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"].
	 */
	disabledDates : null,
	/**
	 * @cfg {String} disabledDatesText The tooltip text to display when the date
	 *      falls on a disabled date (defaults to 'Disabled')
	 */
	disabledDatesText : "Disabled",
	/**
	 * @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).
	 */
	minValue : null,
	/**
	 * @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).
	 */
	maxValue : null,
	/**
	 * @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 {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);
		if (typeof this.minValue == "string") {
			this.minValue = this.parseDate(this.minValue);
		}
		if (typeof this.maxValue == "string") {
			this.maxValue = this.parseDate(this.maxValue);
		}
		this.ddMatch = null;
		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.ddMatch = new RegExp(re + ")");
		}
	},

	// 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.ddMatch && this.ddMatch.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('5/4/06');
	 * dateField.setValue(dt);
	 * 
	 * //Pass a date string (default format):
	 * dateField.setValue('5/4/06');
	 * 
	 * //Pass a date string (custom format):
	 * dateField.format = 'Y-m-d';
	 * dateField.setValue('2006-5-4');
	 * </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 || value instanceof Date) {
			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.wrap) {
			this.wrap.remove();
		}
		Ext.form.DateField.superclass.onDestroy.call(this);
	},

	// private
	formatDate : function(date) {
		return (!date || !(date instanceof Date)) ? date : date
				.dateFormat(this.format);
	},

	// private
	menuListeners : {
		select : function(m, d) {
			this.setValue(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);
		}
	},

	// 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.ddMatch,
					disabledDatesText : this.disabledDatesText,
					disabledDays : this.disabledDays,
					disabledDaysText : this.disabledDaysText,
					format : this.format,
					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() || allGetServerTime());
		this.menu.show(this.el, "tl-bl?");
	},

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

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