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Viewing changes to src/javascript/org/apache/commons/validator/javascript/validateRequired.js

  • Committer: Bazaar Package Importer
  • Author(s): Arnaud Vandyck
  • Date: 2004-11-19 13:35:53 UTC
  • Revision ID: james.westby@ubuntu.com-20041119133553-qtl7whjkjv9q1rbd
Tags: upstream-1.3
Import upstream version 1.3

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src/javascript/org/apache/commons/validator/javascript/validateRequired.js
 
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    /*$RCSfile: validateRequired.js,v $ $Revision: 1.13 $ $Date: 2004/03/28 16:53:21 $ */
 
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    /**
 
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    *  Check to see if fields must contain a value.
 
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    * Fields are not checked if they are disabled.
 
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    * <p>
 
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    * @param form The form validation is taking place on.
 
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    */
 
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    function validateRequired(form) {
 
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        var isValid = true;
 
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        var focusField = null;
 
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        var i = 0;
 
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        var fields = new Array();
 
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        var formName = form.getAttributeNode("name");
 
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        oRequired = eval('new ' + formName.value + '_required()');
 
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        for (x in oRequired) {
 
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            var field = form[oRequired[x][0]];
 
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            if ((field.type == 'hidden' ||
 
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                field.type == 'text' ||
 
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                field.type == 'textarea' ||
 
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                field.type == 'file' ||
 
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                field.type == 'checkbox' ||
 
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                field.type == 'select-one' ||
 
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                field.type == 'password') &&
 
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                field.disabled == false) {
 
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                var value = '';
 
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                // get field's value
 
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                if (field.type == "select-one") {
 
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                    var si = field.selectedIndex;
 
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                    if (si >= 0) {
 
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                        value = field.options[si].value;
 
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                    }
 
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                } else if (field.type == 'checkbox') {
 
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                    if (field.checked) {
 
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                        value = field.value;
 
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                    }
 
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                } else {
 
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                    value = field.value;
 
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                }
 
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                if (trim(value).length == 0) {
 
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                    if (i == 0) {
 
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                        focusField = field;
 
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                    }
 
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                    fields[i++] = oRequired[x][1];
 
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                    isValid = false;
 
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                }
 
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            } else if (field.type == "select-multiple") { 
 
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                var numOptions = field.options.length;
 
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                lastSelected=-1;
 
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                for(loop=numOptions-1;loop>=0;loop--) {
 
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                    if(field.options[loop].selected) {
 
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                        lastSelected = loop;
 
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                        value = field.options[loop].value;
 
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                        break;
 
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                    }
 
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                }
 
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                if(lastSelected < 0 || trim(value).length == 0) {
 
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                    if(i == 0) {
 
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                        focusField = field;
 
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                    }
 
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                    fields[i++] = oRequired[x][1];
 
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                    isValid=false;
 
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                }
 
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            } else if ((field.length > 0) && (field[0].type == 'radio' || field[0].type == 'checkbox')) {
 
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                isChecked=-1;
 
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                for (loop=0;loop < field.length;loop++) {
 
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                    if (field[loop].checked) {
 
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                        isChecked=loop;
 
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                        break; // only one needs to be checked
 
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                    }
 
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                }
 
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                if (isChecked < 0) {
 
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                    if (i == 0) {
 
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                        focusField = field[0];
 
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                    }
 
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                    fields[i++] = oRequired[x][1];
 
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                    isValid=false;
 
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                }
 
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            }
 
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        }
 
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        if (fields.length > 0) {
 
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           focusField.focus();
 
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           alert(fields.join('\n'));
 
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        }
 
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        return isValid;
 
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    }
 
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    // Trim whitespace from left and right sides of s.
 
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    function trim(s) {
 
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        return s.replace( /^\s*/, "" ).replace( /\s*$/, "" );
 
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    }
 
 
b'\\ No newline at end of file'