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Prado.Validation.TRequiredFieldValidator=function(){
var inputType = this.control.getAttribute("type");
if(inputType == 'file'){
return true;
}
else{
var trim=Prado.Util.trim;
var a=trim(Form.Element.getValue(this.control));
var b=trim(this.attr.initialvalue);
return(a!=b);
}
}
Prado.Validation.TRegularExpressionValidator = function()
{
var trim = Prado.Util.trim;
var value = trim(Form.Element.getValue(this.control));
if (value == "") return true;
var rx = new RegExp(this.attr.validationexpression);
var matches = rx.exec(value);
return (matches != null && value == matches[0]);
}
Prado.Validation.TEmailAddressValidator = Prado.Validation.TRegularExpressionValidator;
Prado.Validation.TCustomValidator = function()
{
var value = isNull(this.control) ? null : $F(this.control);
var func = this.attr.clientvalidationfunction;
eval("var validate = "+func);
return validate && isFunction(validate) ? validate(this, value) : true;
}
Prado.Validation.TRangeValidator = function()
{
var trim = Prado.Util.trim;
var value = trim(Form.Element.getValue(this.control));
if (value == "") return true;
var minval = this.attr.minimumvalue;
var maxval = this.attr.maximumvalue;
if (undef(minval) && undef(maxval))
return true;
if (minval == "") minval = 0;
if (maxval == "") maxval = 0;
var dataType = this.attr.type;
if(undef(dataType))
return (parseFloat(value) >= parseFloat(minval)) && (parseFloat(value) <= parseFloat(maxval));
//now do datatype range check.
var min = this.convert(dataType, minval);
var max = this.convert(dataType, maxval);
value = this.convert(dataType, value);
return value >= min && value <= max;
}
Prado.Validation.TCompareValidator = function()
{
var trim = Prado.Util.trim;
var value = trim(Form.Element.getValue(this.control));
if (value.length == 0) return true;
var compareTo;
var comparee = $(this.attr.controlhookup);;
if(comparee)
compareTo = trim(Form.Element.getValue(comparee));
else
{
compareTo = isString(this.attr.valuetocompare) ? this.attr.valuetocompare : "";
}
var compare = Prado.Validation.TCompareValidator.compare;
var isValid = compare.bind(this)(value, compareTo);
//update the comparee control css class name and add onchange event once.
if(comparee)
{
var className = this.attr.controlcssclass;
if(isString(className) && className.length>0)
Element.condClassName(comparee, className, !isValid);
if(undef(this.observingComparee))
{
Event.observe(comparee, "change", this.validate.bind(this));
this.observingComparee = true;
}
}
return isValid;
}
/**
* Compare the two values, also performs data type check.
* @param {string} value to compare with
* @param {string} value to compare
* @type {boolean} true if comparison or type check is valid, false otherwise.
*/
Prado.Validation.TCompareValidator.compare = function(operand1, operand2)
{
var op1, op2;
if ((op1 = this.convert(this.attr.type, operand1)) == null)
return false;
if (this.attr.operator == "DataTypeCheck")
return true;
if ((op2 = this.convert(this.attr.type, operand2)) == null)
return true;
switch (this.attr.operator)
{
case "NotEqual":
return (op1 != op2);
case "GreaterThan":
return (op1 > op2);
case "GreaterThanEqual":
return (op1 >= op2);
case "LessThan":
return (op1 < op2);
case "LessThanEqual":
return (op1 <= op2);
default:
return (op1 == op2);
}
}
Prado.Validation.TRequiredListValidator = function()
{
var min = undef(this.attr.min) ? Number.NEGATIVE_INFINITY : parseInt(this.attr.min);
var max = undef(this.attr.max) ? Number.POSITIVE_INFINITY : parseInt(this.attr.max);
var elements = document.getElementsByName(this.attr.selector);
if(elements.length <= 0)
elements = document.getElementsBySelector(this.attr.selector);
if(elements.length <= 0)
return true;
var required = new Array();
if(isString(this.attr.required) && this.attr.required.length > 0)
required = this.attr.required.split(/,\s* /);
var isValid = true;
var validator = Prado.Validation.TRequiredListValidator;
switch(elements[0].type)
{
case 'radio':
case 'checkbox':
isValid = validator.IsValidRadioList(elements, min, max, required);
break;
case 'select-multiple':
isValid = validator.IsValidSelectMultipleList(elements, min, max, required);
break;
}
var className = this.attr.elementcssclass;
if(isString(className) && className.length>0)
map(elements, function(element){ condClass(element, className, !isValid); });
if(undef(this.observingRequiredList))
{
Event.observe(elements, "change", this.validate.bind(this));
this.observingRequiredList = true;
}
return isValid;
}
//radio group selection
Prado.Validation.TRequiredListValidator.IsValidRadioList = function(elements, min, max, required)
{
var checked = 0;
var values = new Array();
for(var i = 0; i < elements.length; i++)
{
if(elements[i].checked)
{
checked++;
values.push(elements[i].value);
}
}
return Prado.Validation.TRequiredListValidator.IsValidList(checked, values, min, max, required);
}
//multiple selection check
Prado.Validation.TRequiredListValidator.IsValidSelectMultipleList = function(elements, min, max, required)
{
var checked = 0;
var values = new Array();
for(var i = 0; i < elements.length; i++)
{
var selection = elements[i];
for(var j = 0; j < selection.options.length; j++)
{
if(selection.options[j].selected)
{
checked++;
values.push(selection.options[j].value);
}
}
}
return Prado.Validation.TRequiredListValidator.IsValidList(checked, values, min, max, required);
}
//check if the list was valid
Prado.Validation.TRequiredListValidator.IsValidList = function(checkes, values, min, max, required)
{
var exists = true;
if(required.length > 0)
{
//required and the values must at least be have same lengths
if(values.length < required.length)
return false;
for(var k = 0; k < required.length; k++)
exists = exists && values.contains(required[k]);
}
return exists && checkes >= min && checkes <= max;
}
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