【发布时间】：2013-12-27 19:50:42
【问题描述】：
我的应用程序中有一个特定的自定义验证指令（代码附在下面）。 问题在于，当需要一个或多个表单字段并且 chrome 会自动填充它们时，这些字段将保持无效，直到用户手动更改它们。 我怀疑这是因为 chrome 在 Angular 甚至引导之前填充了字段。
有没有办法解决这个问题。
代码：
app.directive('myValidate', function($timeout, $filter) {
return {
require: 'ngModel',
link: function(scope, elm, attrs, ctrl) {
var validator = function(viewValue){
var viewValueStr = viewValue + '';
scope.valid = true;
scope.fieldName = attrs.name;
var nameStr = attrs.name + '';
if(!attrs.displayName || attrs.displayName.length == 0){
// var nameObj = nameStr.split('_');
// for(var i = 0; i < nameObj.length; ++i){
// nameObj[i] = nameObj[i].substr(0, 1).toUpperCase() + nameObj[i].slice(1);
// }
// var nameStrParsed = nameObj.join(' ');//olde code, working on name, not Hebrew comaptible
var nameStrParsed = attrs.placeholder + '';
}
else{//data-display-name attribute, the error display is different than the placeholder value
var nameStrParsed = attrs.displayName;
}
scope.fieldErrorDisplay = Boolean(nameStrParsed) ? nameStrParsed : $filter('translate')('THISFIELD');
var valueRequired = scope.$eval(attrs.valueRequired);
if(valueRequired && viewValueStr.length == 0 && !attrs.minLength){
scope.valid = false;
scope.requirementSpec[nameStr] = [{
'msg' : scope.fieldErrorDisplay + ' ' + $filter('translate')('ISREQUIRED'),
'class' : undefined
}];
}
else{
// scope.fieldErrorDisplayObj[nameStr] = scope.fieldErrorDisplay + ' must meet the following requirements: ';
scope.requirementSpec[nameStr] = [];
if(attrs.minLength){
var itemValidity = viewValue.length >= attrs.minLength;
scope.valid = !itemValidity ? false : scope.valid;
var item = {
'msg' : $filter('translate')('MINLENGTH', {PARAM: attrs.minLength + ''}),
'class' : itemValidity ? 'valid' : undefined
};
scope.requirementSpec[nameStr].push(item);
}
else if(attrs.valueRequired){
var itemValidity = viewValue && viewValueStr && viewValueStr.length >= 1;
scope.valid = !itemValidity ? false : scope.valid;
var item = {
'msg' : $filter('translate')('FIELDREQUIRED'),
'class' : itemValidity ? 'valid' : undefined
};
scope.requirementSpec[nameStr].push(item);
}
if(attrs.maxLength){
var itemValidity = viewValue.length <= attrs.maxLength;
scope.valid = !itemValidity ? false : scope.valid;
var item = {
'msg' : $filter('translate')('MAXLENGTH', {PARAM: attrs.maxLength + ''}),
'class' : itemValidity ? 'valid' : undefined
};
scope.requirementSpec[nameStr].push(item);
}
if(attrs.minLetters){
var itemValidity = (viewValue && /[A-z]/.test(viewValue));
scope.valid = !itemValidity ? false : scope.valid;
var item = {
'msg' : $filter('translate')('MINLETTERS', {PARAM: attrs.minLetters + ''}),
'class' : itemValidity ? 'valid' : undefined
};
scope.requirementSpec[nameStr].push(item);
}
if(attrs.minNumbers){
var itemValidity = (viewValue && /\d/.test(viewValue));
scope.valid = !itemValidity ? false : scope.valid;
var item = {
'msg' : $filter('translate')('MINNUMBERS', {PARAM: attrs.minNumbers + ''}),
'class' : itemValidity ? 'valid' : undefined
};
scope.requirementSpec[nameStr].push(item);
}
if(attrs.validUrl){
// if(viewValue.indexOf('http') == -1){
// viewValue = 'http://' + viewValue;
// ctrl.$setViewValue(viewValue);
// }
// else if(viewValue.indexOf('http') != 0){
// var httpIndex = viewValue.indexOf('http');w
// viewValue = viewValue.substr(httpIndex);
// ctrl.$setViewValue(viewValue);
// }
// var urlPattern = new RegExp("(http|https)://[\w-]+(\.[\w-]+)+([\w.,@?^=%&:/~+#-]*[\w@?^=%&/~+#-])?");
var urlPattern = new RegExp(/^(https?):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i);
//(http|https):\/\/([a-zA-Z0-9]+\.)?[a-zA-Z0-9][a-zA-Z0-9-]+\.[a-zA-Z]{2,6}?(.+){0, 100}$/i)
var itemValidity = !viewValue || viewValue.length == 0 || urlPattern.test(viewValue);
scope.valid = !itemValidity ? false : scope.valid;
// console.log(itemValidity);
var item = {
'msg' : $filter('translate')('VALIDURL'),
'class' : itemValidity ? 'valid' : undefined
};
scope.requirementSpec[nameStr].push(item);
}
}
if(scope.valid) {
ctrl.$setValidity(nameStr, true);
elm.removeClass('ng-required-invalid').removeClass('validatorError').removeClass('ng-invalid').addClass('ng-valid');
return viewValue;
}
else {
ctrl.$setValidity(nameStr, false);
return undefined;
}
}
if(!scope.requirementSpec){
scope.requirementSpec = {};
}
if(Boolean(attrs.valueRequired) || Boolean(attrs.minLength)){
ctrl.$setValidity(attrs.name, false);
// elm.removeClass('ng-valid').addClass('ng-invalid');
}
ctrl.$parsers.unshift(function(viewValue) {
return validator(viewValue);
});
ctrl.$formatters.unshift(function(viewValue) {
if(viewValue && viewValue != "" && viewValue.length > 0)
return validator(viewValue);
});
}
};
})
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标签： javascript google-chrome angularjs