Angular在指令中的元素外部單擊

Question

CSS

ul {
   display: none
}
span.active+ul {
   display:block
}

HTML

<div ng-controller='exchangeFormCtr'>
    <div toggle-class="active">
       <ul>
           <li ng-repeat='carrency in carrencies'>
       </ul>
    </div>
    <div toggle-class="active">
       <ul>
           <li ng-repeat='carrency in carrencies'>
       </ul>
    </div>   
</div>

調節器

exchange.controller('exchangeFormCtr',['$scope', function($scope) {
    $scope.carrencies = [
        {name:'mastercard'},
        {name:'visa'},
        {name:'paypal'}
    ];
}]);

指示

app.directive('toggleClass', function() {
    return {
        restrict: 'A',
        link: function(scope, element, attrs) {
            element.bind('click', function() {
                console.log(element);
                element.toggleClass(attrs.toggleClass);
            });
    }
};

當我單擊span指令將類更改為活動或刪除它時。

如何捕獲外部點擊事件並通過角度方式刪除活動類？

Answer 1

您可以沿元素單擊的stopPropagation（）向文檔對象添加一個單擊處理程序。

 var app = angular.module('my-app', [], function () {}) app.controller('AppController', function ($scope) { $scope.message = "Welcome"; }); app.directive('toggleClass', function ($document) { return { restrict: 'A', link: function (scope, element, attrs) { console.log(element) function elementClick(e) { e.stopPropagation(); element.toggleClass(attrs.toggleClass); } function documentClick(e) { element.removeClass(attrs.toggleClass); } element.on('click', elementClick); $document.on('click', documentClick); // remove event handlers when directive is destroyed scope.$on('$destroy', function () { element.off('click', elementClick); $document.off('click', documentClick); }); } }; }); 

 .active { color: red } 

 <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <div ng-app="my-app" ng-controller="AppController"> <span toggle-class="active">ff</span> </div> asdf 

Answer 2

您的指令中有一些缺少的結尾字符。 看到這個工作小提琴

myApp.controller('exchangeFormCtr',['$scope', function($scope) {
    $scope.carrencies = [
        {name:'mastercard'},
        {name:'visa'},
        {name:'paypal'}
    ];
}

myApp.directive('toggleClass', function() {
    return {
        restrict: 'A',
        link: function(scope, element, attrs) {
            element.bind('click', function() {
                console.log(element);
                element.toggleClass(attrs.toggleClass);
            });
        }
    }
});

Answer 3

使用ng-class和一些filters來提取選定的值

 var exchange = angular.module('App', []); exchange.controller('exchangeFormCtr', ['$scope', function($scope) { $scope.carrencies = [{ name: 'mastercard' }, { name: 'visa' }, { name: 'paypal' }]; $scope.selectAll = function() { angular.forEach( $scope.carrencies, function(carrency) { console.log('ici') carrency.active = true; }); } } ]); 

 .active { background-color: green; color: orange; } 

 <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <div ng-app="App" ng-controller="exchangeFormCtr"> <span ng-click="selectAll()">select all!</span> <p ng-repeat="selected in carrencies"> <span ng-class="{active: selected.active}" ng-click="selected.active = !selected.active"> {{selected.name}} {{selected.active}} </span> </p> <p>actives are : <span>{{ carrencies | filter: {active:true} }}</span></p> </div>