/*
 * Ext JS Library 1.1 RC 1
 * Copyright(c) 2006-2007, Ext JS, LLC.
 * licensing@extjs.com
 * 
 * http://www.extjs.com/license
 */

/** * @class Ext.form.TextField * @extends Ext.form.Field * Basic text field.  Can be used as a direct replacement for traditional text inputs, or as the base * class for more sophisticated input controls (like {@link Ext.form.TextArea} and {@link Ext.form.ComboBox}). * @constructor * Creates a new TextField * @param {Object} config Configuration options */Ext.form.TextField = function(config){    Ext.form.TextField.superclass.constructor.call(this, config);    this.addEvents({        /**         * @event autosize         * Fires when the autosize function is triggered.  The field may or may not have actually changed size         * according to the default logic, but this event provides a hook for the developer to apply additional         * logic at runtime to resize the field if needed.	     * @param {Ext.form.Field} this This text field	     * @param {Number} width The new field width	     */        autosize : true    });};Ext.extend(Ext.form.TextField, Ext.form.Field,  {    /**     * @cfg {Boolean} grow True if this field should automatically grow and shrink to its content     */    grow : false,    /**     * @cfg {Number} growMin The minimum width to allow when grow = true (defaults to 30)     */    growMin : 30,    /**     * @cfg {Number} growMax The maximum width to allow when grow = true (defaults to 800)     */    growMax : 800,    /**     * @cfg {String} vtype A validation type name as defined in {@link Ext.form.VTypes} (defaults to null)     */    vtype : null,    /**     * @cfg {String} maskRe An input mask regular expression that will be used to filter keystrokes that don't match (defaults to null)     */    maskRe : null,    /**     * @cfg {Boolean} disableKeyFilter True to disable input keystroke filtering (defaults to false)     */    disableKeyFilter : false,    /**     * @cfg {Boolean} allowBlank False to validate that the value length > 0 (defaults to true)     */    allowBlank : true,    /**     * @cfg {Number} minLength Minimum input field length required (defaults to 0)     */    minLength : 0,    /**     * @cfg {Number} maxLength Maximum input field length allowed (defaults to Number.MAX_VALUE)     */    maxLength : Number.MAX_VALUE,    /**     * @cfg {String} minLengthText Error text to display if the minimum length validation fails (defaults to "The minimum length for this field is {minLength}")     */    minLengthText : "The minimum length for this field is {0}",    /**     * @cfg {String} maxLengthText Error text to display if the maximum length validation fails (defaults to "The maximum length for this field is {maxLength}")     */    maxLengthText : "The maximum length for this field is {0}",    /**     * @cfg {Boolean} selectOnFocus True to automatically select any existing field text when the field receives input focus (defaults to false)     */    selectOnFocus : false,    /**     * @cfg {String} blankText Error text to display if the allow blank validation fails (defaults to "This field is required")     */    blankText : "This field is required",    /**     * @cfg {Function} validator A custom validation function to be called during field validation (defaults to null).     * If available, this function will be called only after the basic validators all return true, and will be passed the     * current field value and expected to return boolean true if the value is valid or a string error message if invalid.     */    validator : null,    /**     * @cfg {RegExp} regex A JavaScript RegExp object to be tested against the field value during validation (defaults to null).     * If available, this regex will be evaluated only after the basic validators all return true, and will be passed the     * current field value.  If the test fails, the field will be marked invalid using {@link #regexText}.     */    regex : null,    /**     * @cfg {String} regexText The error text to display if {@link #regex} is used and the test fails during validation (defaults to "")     */    regexText : "",    /**     * @cfg {String} emptyText The default text to display in an empty field (defaults to null).     */    emptyText : null,    /**     * @cfg {String} emptyClass The CSS class to apply to an empty field to style the {@link #emptyText} (defaults to     * 'x-form-empty-field').  This class is automatically added and removed as needed depending on the current field value.     */    emptyClass : 'x-form-empty-field',    // private    initEvents : function(){        Ext.form.TextField.superclass.initEvents.call(this);        if(this.validationEvent == 'keyup'){            this.validationTask = new Ext.util.DelayedTask(this.validate, this);            this.el.on('keyup', this.filterValidation, this);        }        else if(this.validationEvent !== false){            this.el.on(this.validationEvent, this.validate, this, {buffer: this.validationDelay});        }        if(this.selectOnFocus || this.emptyText){            this.on("focus", this.preFocus, this);            if(this.emptyText){                this.on('blur', this.postBlur, this);                this.applyEmptyText();            }        }        if(this.maskRe || (this.vtype && this.disableKeyFilter !== true && (this.maskRe = Ext.form.VTypes[this.vtype+'Mask']))){            this.el.on("keypress", this.filterKeys, this);        }        if(this.grow){            this.el.on("keyup", this.onKeyUp,  this, {buffer:50});            this.el.on("click", this.autoSize,  this);        }    },    processValue : function(value){        if(this.stripCharsRe){            var newValue = value.replace(this.stripCharsRe, '');            if(newValue !== value){                this.setRawValue(newValue);                return newValue;            }        }        return value;    },    filterValidation : function(e){        if(!e.isNavKeyPress()){            this.validationTask.delay(this.validationDelay);        }    },    // private    onKeyUp : function(e){        if(!e.isNavKeyPress()){            this.autoSize();        }    },    /**     * Resets the current field value to the originally-loaded value and clears any validation messages.     * Also adds emptyText and emptyClass if the original value was blank.     */    reset : function(){        Ext.form.TextField.superclass.reset.call(this);        this.applyEmptyText();    },    applyEmptyText : function(){        if(this.rendered && this.emptyText && this.getRawValue().length < 1){            this.setRawValue(this.emptyText);            this.el.addClass(this.emptyClass);        }    },    // private    preFocus : function(){        if(this.emptyText){            if(this.el.dom.value == this.emptyText){                this.setRawValue('');            }            this.el.removeClass(this.emptyClass);        }        if(this.selectOnFocus){            this.el.dom.select();        }    },    // private    postBlur : function(){        this.applyEmptyText();    },    // private    filterKeys : function(e){        var k = e.getKey();        if(!Ext.isIE && (e.isNavKeyPress() || k == e.BACKSPACE || (k == e.DELETE && e.button == -1))){            return;        }        if(Ext.isIE && (k == e.BACKSPACE || k == e.DELETE || e.isNavKeyPress() || k == e.HOME || k == e.END)){            return;        }        var c = e.getCharCode();        if(!this.maskRe.test(String.fromCharCode(c) || '')){            e.stopEvent();        }    },    setValue : function(v){        if(this.emptyText && this.el && v !== undefined && v !== null && v !== ''){            this.el.removeClass(this.emptyClass);        }        Ext.form.TextField.superclass.setValue.apply(this, arguments);        this.applyEmptyText();        this.autoSize();    },    /**     * Validates a value according to the field's validation rules and marks the field as invalid     * if the validation fails     * @param {Mixed} value The value to validate     * @return {Boolean} True if the value is valid, else false     */    validateValue : function(value){        if(value.length < 1 || value === this.emptyText){ // if it's blank             if(this.allowBlank){                 this.clearInvalid();                 return true;             }else{                 this.markInvalid(this.blankText);                 return false;             }        }        if(value.length < this.minLength){            this.markInvalid(String.format(this.minLengthText, this.minLength));            return false;        }        if(value.length > this.maxLength){            this.markInvalid(String.format(this.maxLengthText, this.maxLength));            return false;        }        if(this.vtype){            var vt = Ext.form.VTypes;            if(!vt[this.vtype](value, this)){                this.markInvalid(this.vtypeText || vt[this.vtype +'Text']);                return false;            }        }        if(typeof this.validator == "function"){            var msg = this.validator(value);            if(msg !== true){                this.markInvalid(msg);                return false;            }        }        if(this.regex && !this.regex.test(value)){            this.markInvalid(this.regexText);            return false;        }        return true;    },    /**     * Selects text in this field     * @param {Number} start (optional) The index where the selection should start (defaults to 0)     * @param {Number} end (optional) The index where the selection should end (defaults to the text length)     */    selectText : function(start, end){        var v = this.getRawValue();        if(v.length > 0){            start = start === undefined ? 0 : start;            end = end === undefined ? v.length : end;            var d = this.el.dom;            if(d.setSelectionRange){                d.setSelectionRange(start, end);            }else if(d.createTextRange){                var range = d.createTextRange();                range.moveStart("character", start);                range.moveEnd("character", v.length-end);                range.select();            }        }    },    /**     * Automatically grows the field to accomodate the width of the text up to the maximum field width allowed.     * This only takes effect if grow = true, and fires the autosize event.     */    autoSize : function(){        if(!this.grow || !this.rendered){            return;        }        if(!this.metrics){            this.metrics = Ext.util.TextMetrics.createInstance(this.el);        }        var el = this.el;        var v = el.dom.value;        var d = document.createElement('div');        d.appendChild(document.createTextNode(v));        v = d.innerHTML;        d = null;        v += "&#160;";        var w = Math.min(this.growMax, Math.max(this.metrics.getWidth(v) + /* add extra padding */ 10, this.growMin));        this.el.setWidth(w);        this.fireEvent("autosize", this, w);    }});