<?xml version="1.0"?>
<!DOCTYPE script
	PUBLIC "-//Apache Software Foundation//Tapestry Script Specification 3.0//EN"
	"http://jakarta.apache.org/tapestry/dtd/Script_3_0.dtd"
>


<!--
	Creates a script for validating that a field is required and/or has a minimum
	field length.

	Input symbols:
	field, form, validator:  As normal for a validation script.
	requiredMessage: Message to display if the field is required yet blank.
	minimumLengthMessage: Message to display if the field length is too short.
	urlFormatMessage: Message to display if the field value is not a valid URL.
	urlRegexpProtocols: The regexp to check that the protocol is one of the allowed protocols.
	urlDisallowedProtocolMessage: Message to display if the field value does not use an allowed protocol.

-->
<script>

	<include-script resource-path="/org/apache/tapestry/valid/Validator.js" />

	<input-symbol key="field" class="org.apache.tapestry.valid.ValidField" required="yes" />
	<input-symbol key="form" class="org.apache.tapestry.IForm" required="yes" />
	<input-symbol key="validator" class="org.apache.tapestry.valid.UrlValidator" required="yes" />
	<input-symbol key="requiredMessage" class="java.lang.String" />
	<input-symbol key="minimumLengthMessage" class="java.lang.String" />
	<input-symbol key="urlFormatMessage" class="java.lang.String" />
	<input-symbol key="urlRegexpProtocols" class="java.lang.String" />
	<input-symbol key="urlDisallowedProtocolMessage" class="java.lang.String" />

	<let key="function" unique="yes">validate_${field.name}</let>

	<body>
		function ${function}() {
			var field = document.${form.name}.${field.name};
			strValue = field.value.replace(/ /g,"");
			field.value = strValue;

		<if expression="validator.required">
			if (strValue.length == 0)
				return validator_invalid_field(field, "${requiredMessage}");
		</if>

		<if-not expression="validator.required">
			if (strValue.length == 0)
				return true;
		</if-not>

		<if expression="validator.minimumLength">
			if (strValue.length &lt; ${validator.minimumLength})
				return validator_invalid_field(field, "${minimumLengthMessage}");
		</if>

			if(!regexpTestUrl(strValue))
				return validator_invalid_field(field, "${urlFormatMessage}");

		<if expression="null != urlRegexpProtocols">
			var protoRegExp = ${urlRegexpProtocols};
			if(!protoRegExp.test(strValue))
				return validator_invalid_field(field, "${urlDisallowedProtocolMessage}");
		</if>

			return true;
		}
	</body>

</script>