我的页面中有一个表单，包含AngularJS和Stripe JS。
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.6/angular.min.js"> <script type="text/javascript">
var app= angular.module("app",[]);
app.config(function($interpolateProvider){
$interpolateProvider.startSymbol("[[[");
$interpolateProvider.endSymbol("]]]");
});
app.controller("Ctrl",function(stripeService, $scope, $rootScope){
$scope.name= "World";
$scope.stripeCompleted= false;
stripeService.start();
$rootScope.on("stripedone", function(e,stripeEvent){
$scope.stripeCompleted= stripeEvent.complete;
$scope.$apply();
});
});
app.service("stripeService", function($window,$rootScope){
function start(){
var btn= document.querySelectorAll("#test")[0];
var displayError= document.getElementById('card-errors');
var stripe= Stripe("{{ stripe_key }}");
var elements= stripe.elements();
var style= {
base: {
fontSize: "1.1875rem",
fontSmoothing: "always",
fontWeight: "600"
}
};
var card= elements.create("card", {style:style});
card.mount("#card-element");
card.addEventListener('change', function(event) {
if (event.error) {
displayError.textContent = event.error.message;
} else {
displayError.textContent = '';
}
if (event.complete) {
$rootScope.$broadcast("stripedone",event);
} else {
$rootScope.$broadcast("stripedone",event);
}
});
var formID= "register-form";
var form= document.getElementById(formID);
form.addEventListener("submit",function(event){
event.preventDefault();
stripe.createToken(card).then(function(result){
if(result.error) {
displayError.textContent= result.error.message;
} else {
stripeTokenHandler(result.token, formID);
}
});
});
return {"start":start};
}
});
// tut https://stripe.com/docs/stripe-js/elements/quickstart#create-form
function stripeTokenHandler(token, formID) {
// Insert the token ID into the form so it gets submitted to the server
var form = document.getElementById(formID);
var hiddenInput = document.createElement('input');
hiddenInput.setAttribute('type', 'hidden');
hiddenInput.setAttribute('name', 'stripeToken');
hiddenInput.setAttribute('value', token.id);
form.appendChild(hiddenInput);
// Submit the form
form.submit();
}
</script> <form id="register-form" name="regForm" method="post>
<input ng-model="reg.email" type="email" name="username">
<div id="stripe-wrapper">
<div id="card-element"></div>
</div>
<small id="card-errors" class="text-danger" role="alert">{{ ccErrMsg }}</small>
<br>
<button type="submit" ng-model="reg.btn" ng-disabled="!regForm.username.$valid>Register</button>
</form>
我希望我的button无法点击，除非用户正确填写了Stipe信用卡部分。除非条纹信用卡字段填写正确，否则如何禁用我的button？
更新：按照karthick的回答给我一个新的错误：
angular.js:13642 TypeError: stripeService.start is not a function
at Object.<anonymous> ((index):135)
at Object.invoke (angular.js:4708)
at P.instance (angular.js:10177)
at n (angular.js:9096)
at g (angular.js:8459)
at angular.js:8339
at angular.js:1782
at m.$eval (angular.js:17378)
at m.$apply (angular.js:17478)
at angular.js:1780
答案 0 :(得分：6)
在这种情况下，你应该使用AngularJS directive 。这不属于控制器，服务，工厂或组件。使用指令后，您的代码将变得更加智能，并得到AngularJS diggest循环和DOM绑定的完全支持。这是文档引入指令的方式：
什么是指令？在较高的层次上，指令是DOM元素上的标记（例如属性，元素名称，注释或CSS类），它们告诉AngularJS的HTML编译器（$ compile）将指定的行为附加到该DOM元素（例如，通过事件侦听器），甚至转换DOM元素及其子元素。
<强>＆GT; Demo fiddle
<body ng-app="angularjs-starter">
<script src="https://js.stripe.com/v3/"></script>
<div ng-controller="MainCtrl">
<form name="regForm" id="register-form">
<label>Mail</label>
<input ng-model="reg.email" type="email" name="username">
<div stripe-validator
stripe-complete="stripeCompleted"
stripe-form-id="register-form"></div>
<br>
<button ng-model="reg.btn" ng-disabled="stripeCompleted === false || !regForm.username.$valid">Register</button>
</form>
</div>
</body>
var app = angular.module('angularjs-starter', []);
app.controller('MainCtrl', function($scope, $rootScope) {
//Init stripe state via controller
$scope.stripeCompleted = false;
});
app.directive('stripeValidator', function() {
return {
restrict: 'A',
template: `
<div id="stripe-wrapper">
<div id="card-element"></div>
</div>
<small id="card-errors" class="text-danger" role="alert">{{ ccErrMsg }}</small>
<input type="hidden" name="stripeToken" ng-value="stripeToken" />`,
scope: {
"stripeComplete": '=',
"stripeFormId": '@',
"stripeError": '=',
"stripeToken": '=',
},
link: function(scope, element, attrs) {
//Init
var stripe = Stripe("pk_test_6pRNASCoBOKtIshFeQd4XMUh");
var elements = stripe.elements();
var card = elements.create("card");
var form = document.getElementById(scope.stripeFormId);
//mount card element https://stripe.com/docs/stripe-js/reference#element-mount
card.mount("#card-element");
//add event listener
card.addEventListener('change', function(event) {
//check for errors
if (event.error) {
scope.ccErrMsg = event.error.message;
} else {
scope.ccErrMsg = '';
}
//check for complete
scope.stripeComplete = event.complete ? true : false;
//apply scope
scope.$apply();
});
//inject form submit event
form.addEventListener("submit", function(event) {
//prevent form submit
event.preventDefault();
//handle token, handle error and form submit forward
stripe.createToken(card).then(function(result) {
if (result.error) {
scope.ccErrMsg = event.error.message;
scope.stripeToken = '';
} else {
scope.ccErrMsg = '';
scope.stripeToken = result.token;
}
//apply scope
scope.$apply();
//forward submit
form.submit();
})
});
}
}
});