New file |
0,0 → 1,261 |
if(!dojo._hasResource["dojox.validate.check"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. |
dojo._hasResource["dojox.validate.check"] = true; |
dojo.provide("dojox.validate.check"); |
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dojo.require("dojox.validate._base"); |
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dojox.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} |
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// 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; |
} |
}; |
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var _undef = function(name,object){ |
return (typeof object[name] == "undefined"); |
}; |
|
// 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(_undef("type", elem) || elem.type != "text" && elem.type != "textarea" && elem.type != "password"){ continue; } |
elem.value = elem.value.replace(/(^\s*|\s*$)/g, ""); |
} |
} |
// Convert to uppercase |
if(profile.uppercase instanceof Array){ |
for(var i = 0; i < profile.uppercase.length; i++){ |
var elem = form[profile.uppercase[i]]; |
if(_undef("type", elem) || elem.type != "text" && elem.type != "textarea" && elem.type != "password"){ continue; } |
elem.value = elem.value.toUpperCase(); |
} |
} |
// Convert to lowercase |
if(profile.lowercase instanceof Array){ |
for (var i = 0; i < profile.lowercase.length; i++){ |
var elem = form[profile.lowercase[i]]; |
if(_undef("type", elem) || elem.type != "text" && elem.type != "textarea" && elem.type != "password"){ continue; } |
elem.value = elem.value.toLowerCase(); |
} |
} |
// Uppercase first letter |
if(profile.ucfirst instanceof Array){ |
for(var i = 0; i < profile.ucfirst.length; i++){ |
var elem = form[profile.ucfirst[i]]; |
if(_undef("type", elem) || elem.type != "text" && elem.type != "textarea" && elem.type != "password"){ continue; } |
elem.value = elem.value.replace(/\b\w+\b/g, function(word) { return word.substring(0,1).toUpperCase() + word.substring(1).toLowerCase(); }); |
} |
} |
// Remove non digits characters from the input. |
if(profile.digit instanceof Array){ |
for(var i = 0; i < profile.digit.length; i++){ |
var elem = form[profile.digit[i]]; |
if(_undef("type", elem) || elem.type != "text" && elem.type != "textarea" && elem.type != "password"){ continue; } |
elem.value = elem.value.replace(/\D/g, ""); |
} |
} |
|
// See if required input fields have values missing. |
if(profile.required instanceof Array){ |
for(var i = 0; i < profile.required.length; i++){ |
if(!dojo.isString(profile.required[i])){ continue; } |
var elem = form[profile.required[i]]; |
// Are textbox, textarea, or password fields blank. |
if(!_undef("type", elem) |
&& (elem.type == "text" || elem.type == "textarea" || elem.type == "password" || elem.type == "file") |
&& /^\s*$/.test(elem.value)){ |
missing[missing.length] = elem.name; |
} |
// Does drop-down box have option selected. |
else if(!_undef("type", elem) && (elem.type == "select-one" || elem.type == "select-multiple") |
&& (elem.selectedIndex == -1 |
|| /^\s*$/.test(elem.options[elem.selectedIndex].value))){ |
missing[missing.length] = elem.name; |
} |
// Does radio button group (or check box group) have option checked. |
else if(elem instanceof Array){ |
var checked = false; |
for(var j = 0; j < elem.length; j++){ |
if (elem[j].checked) { checked = true; } |
} |
if(!checked){ |
missing[missing.length] = elem[0].name; |
} |
} |
} |
} |
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// See if checkbox groups and select boxes have x number of required values. |
if(profile.required instanceof Array){ |
for (var i = 0; i < profile.required.length; i++){ |
if(!dojo.isObject(profile.required[i])){ continue; } |
var elem, numRequired; |
for(var name in profile.required[i]){ |
elem = form[name]; |
numRequired = profile.required[i][name]; |
} |
// case 1: elem is a check box group |
if(elem instanceof Array){ |
var checked = 0; |
for(var j = 0; j < elem.length; j++){ |
if(elem[j].checked){ checked++; } |
} |
if(checked < numRequired){ |
missing[missing.length] = elem[0].name; |
} |
} |
// case 2: elem is a select box |
else if(!_undef("type", elem) && elem.type == "select-multiple" ){ |
var selected = 0; |
for(var j = 0; j < elem.options.length; j++){ |
if (elem.options[j].selected && !/^\s*$/.test(elem.options[j].value)) { selected++; } |
} |
if(selected < numRequired){ |
missing[missing.length] = elem.name; |
} |
} |
} |
} |
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// 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.isObject(profile.dependencies)){ |
// 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(_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*$/.test(target.value)){ continue; } // skip if blank |
missing[missing.length] = elem.name; // ok the dependent field is missing |
} |
} |
|
// Find invalid input fields. |
if(dojo.isObject(profile.constraints)){ |
// constraint properties are the names of fields to bevalidated |
for(name in profile.constraints){ |
var elem = form[name]; |
if(!elem) {continue;} |
|
// skip if blank - its optional unless required, in which case it |
// is already listed as missing. |
if(!_undef("tagName",elem) |
&& (elem.tagName.toLowerCase().indexOf("input") >= 0 |
|| elem.tagName.toLowerCase().indexOf("textarea") >= 0) |
&& /^\s*$/.test(elem.value)){ |
continue; |
} |
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var isValid = true; |
// case 1: constraint value is validation function |
if(dojo.isFunction(profile.constraints[name])){ |
isValid = profile.constraints[name](elem.value); |
}else if(dojo.isArray(profile.constraints[name])){ |
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// handle nested arrays for multiple constraints |
if(dojo.isArray(profile.constraints[name][0])){ |
for (var i=0; i<profile.constraints[name].length; i++){ |
isValid = dojox.validate.evaluateConstraint(profile, profile.constraints[name][i], name, elem); |
if(!isValid){ break; } |
} |
}else{ |
// case 2: constraint value is array, first elem is function, |
// tail is parameters |
isValid = dojox.validate.evaluateConstraint(profile, profile.constraints[name], name, elem); |
} |
} |
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if(!isValid){ |
invalid[invalid.length] = elem.name; |
} |
} |
} |
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// Find unequal confirm fields and report them as Invalid. |
if(dojo.isObject(profile.confirm)){ |
for(name in profile.confirm){ |
var elem = form[name]; // the confirm element |
var target = form[profile.confirm[name]]; |
if (_undef("type", elem) || _undef("type", target) || (elem.type != "text" && elem.type != "textarea" && elem.type != "password") |
||(target.type != elem.type) |
||(target.value == elem.value) // it's valid |
||(results.isInvalid(elem.name))// already listed as invalid |
||(/^\s*$/.test(target.value))) // skip if blank - only confirm if target has a value |
{ |
continue; |
} |
invalid[invalid.length] = elem.name; |
} |
} |
return results; // Object |
}; |
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//TODO: evaluateConstraint doesn't use profile or fieldName args? |
dojox.validate.evaluateConstraint=function(profile, /*Array*/constraint, fieldName, elem){ |
// summary: |
// Evaluates dojo.validate.check() constraints that are specified as array |
// arguments |
// |
// description: The arrays are expected to be in the format of: |
// constraints:{ |
// fieldName: [functionToCall, param1, param2, etc.], |
// fieldName: [[functionToCallFirst, param1],[functionToCallSecond,param2]] |
// } |
// |
// This function evaluates a single array function in the format of: |
// [functionName, argument1, argument2, etc] |
// |
// The function will be parsed out and evaluated against the incoming parameters. |
// |
// profile: The dojo.validate.check() profile that this evaluation is against. |
// constraint: The single [] array of function and arguments for the function. |
// fieldName: The form dom name of the field being validated. |
// elem: The form element field. |
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var isValidSomething = constraint[0]; |
var params = constraint.slice(1); |
params.unshift(elem.value); |
if(typeof isValidSomething != "undefined"){ |
return isValidSomething.apply(null, params); |
} |
return false; // Boolean |
} |
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} |