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/*
Copyright (c) 2004-2006, The Dojo Foundation
All Rights Reserved.
Licensed under the Academic Free License version 2.1 or above OR the
modified BSD license. For more information on Dojo licensing, see:
http://dojotoolkit.org/community/licensing.shtml
*/
dojo.provide("dojo.validate.check");
dojo.require("dojo.validate.common");
dojo.require("dojo.lang.common");
dojo.validate.check = function(/*HTMLFormElement*/form, /*Object*/profile){
// summary: validates user input of an HTML form based on input profile
//
// description:
// returns an object that contains several methods summarizing the results of the validation
//
// form: form to be validated
// profile: specifies how the form fields are to be validated
// {trim:Array, uppercase:Array, lowercase:Array, ucfirst:Array, digit:Array,
// required:Array, dependencies:Object, constraints:Object, confirm:Object}
// Essentially private properties of results object
var missing = [];
var invalid = [];
// results object summarizes the validation
var results = {
isSuccessful: function() {return ( !this.hasInvalid() && !this.hasMissing() );},
hasMissing: function() {return ( missing.length > 0 );},
getMissing: function() {return missing;},
isMissing: function(elemname) {
for(var i = 0; i < missing.length; i++){
if(elemname == missing[i]){ return true; }
}
return false;
},
hasInvalid: function() {return ( invalid.length > 0 );},
getInvalid: function() {return invalid;},
isInvalid: function(elemname){
for(var i = 0; i < invalid.length; i++){
if(elemname == invalid[i]){ return true; }
}
return false;
}
};
// Filters are applied before fields are validated.
// Trim removes white space at the front and end of the fields.
if(profile.trim instanceof Array){
for(var i = 0; i < profile.trim.length; i++){
var elem = form[profile.trim[i]];
if(dj_undef("type", elem) || elem.type != "text" && elem.type != "textarea" && elem.type != "password"){ continue; }
elem.value = elem.value.replace(/(^\s*|\s*$)/g, "");
}
}
// Convert to uppercase
if(profile.uppercase instanceof Array){
for(var i = 0; i < profile.uppercase.length; i++){
var elem = form[profile.uppercase[i]];
if(dj_undef("type", elem) || elem.type != "text" && elem.type != "textarea" && elem.type != "password"){ continue; }
elem.value = elem.value.toUpperCase();
}
}
// Convert to lowercase
if(profile.lowercase instanceof Array){
for (var i = 0; i < profile.lowercase.length; i++){
var elem = form[profile.lowercase[i]];
if(dj_undef("type", elem) || elem.type != "text" && elem.type != "textarea" && elem.type != "password"){ continue; }
elem.value = elem.value.toLowerCase();
}
}
// Uppercase first letter
if(profile.ucfirst instanceof Array){
for(var i = 0; i < profile.ucfirst.length; i++){
var elem = form[profile.ucfirst[i]];
if(dj_undef("type", elem) || elem.type != "text" && elem.type != "textarea" && elem.type != "password"){ continue; }
elem.value = elem.value.replace(/\b\w+\b/g, function(word) { return word.substring(0,1).toUpperCase() + word.substring(1).toLowerCase(); });
}
}
// Remove non digits characters from the input.
if(profile.digit instanceof Array){
for(var i = 0; i < profile.digit.length; i++){
var elem = form[profile.digit[i]];
if(dj_undef("type", elem) || elem.type != "text" && elem.type != "textarea" && elem.type != "password"){ continue; }
elem.value = elem.value.replace(/\D/g, "");
}
}
// See if required input fields have values missing.
if(profile.required instanceof Array){
for(var i = 0; i < profile.required.length; i++){
if(!dojo.lang.isString(profile.required[i])){ continue; }
var elem = form[profile.required[i]];
// Are textbox, textarea, or password fields blank.
if(!dj_undef("type", elem) && (elem.type == "text" || elem.type == "textarea" || elem.type == "password") && /^\s*$/.test(elem.value)){
missing[missing.length] = elem.name;
}
// Does drop-down box have option selected.
else if(!dj_undef("type", elem) && (elem.type == "select-one" || elem.type == "select-multiple")
&& (elem.selectedIndex == -1
|| /^\s*$/.test(elem.options[elem.selectedIndex].value))){
missing[missing.length] = elem.name;
}
// Does radio button group (or check box group) have option checked.
else if(elem instanceof Array){
var checked = false;
for(var j = 0; j < elem.length; j++){
if (elem[j].checked) { checked = true; }
}
if(!checked){
missing[missing.length] = elem[0].name;
}
}
}
}
// See if checkbox groups and select boxes have x number of required values.
if(profile.required instanceof Array){
for (var i = 0; i < profile.required.length; i++){
if(!dojo.lang.isObject(profile.required[i])){ continue; }
var elem, numRequired;
for(var name in profile.required[i]){
elem = form[name];
numRequired = profile.required[i][name];
}
// case 1: elem is a check box group
if(elem instanceof Array){
var checked = 0;
for(var j = 0; j < elem.length; j++){
if(elem[j].checked){ checked++; }
}
if(checked < numRequired){
missing[missing.length] = elem[0].name;
}
}
// case 2: elem is a select box
else if(!dj_undef("type", elem) && elem.type == "select-multiple" ){
var selected = 0;
for(var j = 0; j < elem.options.length; j++){
if (elem.options[j].selected && !/^\s*$/.test(elem.options[j].value)) { selected++; }
}
if(selected < numRequired){
missing[missing.length] = elem.name;
}
}
}
}
// Dependent fields are required when the target field is present (not blank).
// Todo: Support dependent and target fields that are radio button groups, or select drop-down lists.
// Todo: Make the dependency based on a specific value of the target field.
// Todo: allow dependent fields to have several required values, like {checkboxgroup: 3}.
if(dojo.lang.isObject(profile.dependencies) || dojo.lang.isObject(profile.dependancies)){
if(profile["dependancies"]){
dojo.deprecated("dojo.validate.check", "profile 'dependancies' is deprecated, please use "
+ "'dependencies'", "0.5");
profile.dependencies=profile.dependancies;
}
// properties of dependencies object are the names of dependent fields to be checked
for(name in profile.dependencies){
var elem = form[name]; // the dependent element
if(dj_undef("type", elem)){continue;}
if(elem.type != "text" && elem.type != "textarea" && elem.type != "password"){ continue; } // limited support
if(/\S+/.test(elem.value)){ continue; } // has a value already
if(results.isMissing(elem.name)){ continue; } // already listed as missing
var target = form[profile.dependencies[name]];
if(target.type != "text" && target.type != "textarea" && target.type != "password"){ continue; } // limited support
if(/^\s*$/.test(target.value)){ continue; } // skip if blank
missing[missing.length] = elem.name; // ok the dependent field is missing
}
}
// Find invalid input fields.
if(dojo.lang.isObject(profile.constraints)){
// constraint properties are the names of fields to bevalidated
for(name in profile.constraints){
var elem = form[name];
if(!elem) {continue;}
// skip if blank - its optional unless required, in which case it
// is already listed as missing.
if(!dj_undef("tagName",elem)
&& (elem.tagName.toLowerCase().indexOf("input") >= 0
|| elem.tagName.toLowerCase().indexOf("textarea") >= 0)
&& /^\s*$/.test(elem.value)){
continue;
}
var isValid = true;
// case 1: constraint value is validation function
if(dojo.lang.isFunction(profile.constraints[name])){
isValid = profile.constraints[name](elem.value);
}else if(dojo.lang.isArray(profile.constraints[name])){
// handle nested arrays for multiple constraints
if(dojo.lang.isArray(profile.constraints[name][0])){
for (var i=0; i
