/*
This file is part of Ext JS 3.4

Copyright (c) 2011-2013 Sencha Inc

Contact:  http://www.sencha.com/contact

GNU General Public License Usage
This file may be used under the terms of the GNU General Public License version 3.0 as
published by the Free Software Foundation and appearing in the file LICENSE included in the
packaging of this file.

Please review the following information to ensure the GNU General Public License version 3.0
requirements will be met: http://www.gnu.org/copyleft/gpl.html.

If you are unsure which license is appropriate for your use, please contact the sales department
at http://www.sencha.com/contact.

Build date: 2013-04-03 15:07:25
*/
/**
 * @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
 * @xtype datefield
 */
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 <tt>'m/d/Y'</tt>).
     */
    format : "m/d/Y",
    /**
     * @cfg {String} altFormats
     * Multiple date formats separated by "<tt>|</tt>" to try when parsing a user input value and it
     * does not match the defined format (defaults to
     * <tt>'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|n-j|n/j'</tt>).
     */
    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|n-j|n/j",
    /**
     * @cfg {String} disabledDaysText
     * The tooltip to display when the date falls on a disabled day (defaults to <tt>'Disabled'</tt>)
     */
    disabledDaysText : "Disabled",
    /**
     * @cfg {String} disabledDatesText
     * The tooltip text to display when the date falls on a disabled date (defaults to <tt>'Disabled'</tt>)
     */
    disabledDatesText : "Disabled",
    /**
     * @cfg {String} minText
     * The error text to display when the date in the cell is before <tt>{@link #minValue}</tt> (defaults to
     * <tt>'The date in this field must be after {minValue}'</tt>).
     */
    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 <tt>{@link #maxValue}</tt> (defaults to
     * <tt>'The date in this field must be before {maxValue}'</tt>).
     */
    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
     * <tt>'{value} is not a valid date - it must be in the format {format}'</tt>).
     */
    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 <tt>'x-form-trigger'</tt> and <tt>triggerClass</tt> will be <b>appended</b> if specified
     * (defaults to <tt>'x-form-date-trigger'</tt> which displays a calendar icon).
     */
    triggerClass : 'x-form-date-trigger',
    /**
     * @cfg {Boolean} showToday
     * <tt>false</tt> 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 <tt>true</tt>).
     */
    showToday : true,
    
    /**
     * @cfg {Number} startDay
     * Day index at which the week should begin, 0-based (defaults to 0, which is Sunday)
     */
    startDay : 0,
    
    /**
     * @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).
     */
    /**
     * @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).
     */
    /**
     * @cfg {Array} disabledDays
     * An array of days to disable, 0 based (defaults to null). Some examples:<pre><code>
// disable Sunday and Saturday:
disabledDays:  [0, 6]
// disable weekdays:
disabledDays: [1,2,3,4,5]
     * </code></pre>
     */
    /**
     * @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:<pre><code>
// disable these exact dates:
disabledDates: ["03/08/2003", "09/16/2003"]
// disable these days for every year:
disabledDates: ["03/08", "09/16"]
// only match the beginning (useful if you are using short years):
disabledDates: ["^03/08"]
// disable every day in March 2006:
disabledDates: ["03/../2006"]
// disable every day in every March:
disabledDates: ["^03"]
     * </code></pre>
     * 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 {@link #format date format} that has "." in
     * it, you will have to escape the dot when restricting dates. For example: <tt>["03\\.08\\.03"]</tt>.
     */
    /**
     * @cfg {String/Object} autoCreate
     * A {@link Ext.DomHelper DomHelper element specification object}, or <tt>true</tt> for the default element
     * specification object:<pre><code>
     * autoCreate: {tag: "input", type: "text", size: "10", autocomplete: "off"}
     * </code></pre>
     */

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

    // in the absence of a time value, a default value of 12 noon will be used
    // (note: 12 noon was chosen because it steers well clear of all DST timezone changes)
    initTime: '12', // 24 hour format

    initTimeFormat: 'H',

    // PUBLIC -- to be documented
    safeParse : function(value, format) {
        if (Date.formatContainsHourInfo(format)) {
            // if parse format contains hour information, no DST adjustment is necessary
            return Date.parseDate(value, format);
        } else {
            // set time to 12 noon, then clear the time
            var parsedDate = Date.parseDate(value + ' ' + this.initTime, format + ' ' + this.initTimeFormat);
 
            if (parsedDate) {
                return parsedDate.clearTime();
            }
        }
    },

    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(Ext.isString(this.minValue)){
            this.minValue = this.parseDate(this.minValue);
        }
        if(Ext.isString(this.maxValue)){
            this.maxValue = this.parseDate(this.maxValue);
        }
        this.disabledDatesRE = null;
        this.initDisabledDays();
    },

    initEvents: function() {
        Ext.form.DateField.superclass.initEvents.call(this);
        this.keyNav = new Ext.KeyNav(this.el, {
            "down": function(e) {
                this.onTriggerClick();
            },
            scope: this,
            forceKeyDown: true
        });
    },


    // private
    initDisabledDays : function(){
        if(this.disabledDates){
            var dd = this.disabledDates,
                len = dd.length - 1,
                re = "(?:";

            Ext.each(dd, function(d, i){
                re += Ext.isDate(d) ? '^' + Ext.escapeRe(d.dateFormat(this.format)) + '$' : dd[i];
                if(i != len){
                    re += '|';
                }
            }, this);
            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 <tt>{@link #disabledDates}</tt> 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 <tt>{@link #disabledDays}</tt>
     * config for details on supported values.
     */
    setDisabledDays : function(dd){
        this.disabledDays = dd;
        if(this.menu){
            this.menu.picker.setDisabledDays(dd);
        }
    },

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

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

    /**
     * Runs all of NumberFields validations and returns an array of any errors. Note that this first
     * runs TextField's validations, so the returned array is an amalgamation of all field errors.
     * The additional validation checks are testing that the date format is valid, that the chosen
     * date is within the min and max date constraints set, that the date chosen is not in the disabledDates
     * regex and that the day chosed is not one of the disabledDays.
     * @param {Mixed} value The value to get errors for (defaults to the current field value)
     * @return {Array} All validation errors for this field
     */
    getErrors: function(value) {
        var errors = Ext.form.DateField.superclass.getErrors.apply(this, arguments);

        value = this.formatDate(value || this.processValue(this.getRawValue()));

        if (value.length < 1) { // if it's blank and textfield didn't flag it then it's valid
             return errors;
        }

        var svalue = value;
        value = this.parseDate(value);
        if (!value) {
            errors.push(String.format(this.invalidText, svalue, this.format));
            return errors;
        }

        var time = value.getTime();
        if (this.minValue && time < this.minValue.clearTime().getTime()) {
            errors.push(String.format(this.minText, this.formatDate(this.minValue)));
        }

        if (this.maxValue && time > this.maxValue.clearTime().getTime()) {
            errors.push(String.format(this.maxText, this.formatDate(this.maxValue)));
        }

        if (this.disabledDays) {
            var day = value.getDay();

            for(var i = 0; i < this.disabledDays.length; i++) {
                if (day === this.disabledDays[i]) {
                    errors.push(this.disabledDaysText);
                    break;
                }
            }
        }

        var fvalue = this.formatDate(value);
        if (this.disabledDatesRE && this.disabledDatesRE.test(fvalue)) {
            errors.push(String.format(this.disabledDatesText, fvalue));
        }

        return errors;
    },

    // 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 <tt>{@link #format}</tt> as the date format, according
     * to the same rules as {@link Date#parseDate} (the default format used is <tt>"m/d/Y"</tt>).
     * <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
     * @return {Ext.form.Field} this
     */
    setValue : function(date){
        return 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 = this.safeParse(value, this.format),
            af = this.altFormats,
            afa = this.altFormatsArray;

        if (!v && af) {
            afa = afa || af.split("|");

            for (var i = 0, len = afa.length; i < len && !v; i++) {
                v = this.safeParse(value, afa[i]);
            }
        }
        return v;
    },

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

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

    /**
     * @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({
                hideOnClick: false,
                focusOnSelect: false
            });
        }
        this.onFocus();
        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,
            startDay: this.startDay,
            minText : String.format(this.minText, this.formatDate(this.minValue)),
            maxText : String.format(this.maxText, this.formatDate(this.maxValue))
        });
        this.menu.picker.setValue(this.getValue() || new Date());
        this.menu.show(this.el, "tl-bl?");
        this.menuEvents('on');
    },

    //private
    menuEvents: function(method){
        this.menu[method]('select', this.onSelect, this);
        this.menu[method]('hide', this.onMenuHide, this);
        this.menu[method]('show', this.onFocus, this);
    },

    onSelect: function(m, d){
        this.setValue(d);
        this.fireEvent('select', this, d);
        this.menu.hide();
    },

    onMenuHide: function(){
        this.focus(false, 60);
        this.menuEvents('un');
    },

    // private
    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);
