AngularJS - 单击复选框时聚焦输入元素 [英] AngularJS - Focusing an input element when a checkbox is clicked

问题描述

是否有一种更简洁的方法可以在单击复选框时将焦点委托给元素.这是我破解的脏版本:

HTML

<input type="checkbox" ng-change="toggled()"><输入id="姓名">

JavaScript

var myApp = angular.module('myApp',[]);函数 MyCtrl($scope, $timeout) {$scope.value = "东西";$scope.toggled = function() {console.debug('切换');$超时(功能(){$('#name').focus();}, 100);}}

JSFiddle:http://jsfiddle.net/U4jvE/8/

解决方案

这个怎么样?plunker

 $scope.$watch('isChecked', function(newV){新V&&$('#name').focus();}，真的);

@asgoth 和@Mark Rajcok 是正确的.我们应该使用指令.我只是懒.

这是指令版本.plunker 我认为把它作为指令的一个很好的理由是你可以重用这个东西.

因此在您的 html 中，您可以将不同的模态分配给不同的集合

<input xng-focus='isCheckedN'>指令('xngFocus'，函数(){返回函数(范围，元素，属性){范围.$watch(attrs.xngFocus,功能(新值){新价值&&element.focus();}，真的);};});

Is there a cleaner way of delegating focus to an element when a checkbox is clicked. Here's the dirty version I hacked:

HTML

<div ng-controller="MyCtrl">
    <input type="checkbox" ng-change="toggled()">
    <input id="name">
</div>

JavaScript

var myApp = angular.module('myApp',[]);

function MyCtrl($scope, $timeout) {
    $scope.value = "Something";
    $scope.toggled = function() {
        console.debug('toggled');
        $timeout(function() {
            $('#name').focus();
        }, 100);
    }
}

JSFiddle: http://jsfiddle.net/U4jvE/8/

解决方案

how about this one ? plunker

 $scope.$watch('isChecked', function(newV){
      newV && $('#name').focus();
    },true);

@asgoth and @Mark Rajcok are correct. We should use directive. I was just lazy.

Here is the directive version. plunker I think one good reason to make it as directive is you can reuse this thing.

so in your html you can just assign different modals to different sets

<input type="checkbox" ng-model="isCheckedN">
<input xng-focus='isCheckedN'>


directive('xngFocus', function() {
    return function(scope, element, attrs) {
       scope.$watch(attrs.xngFocus, 
         function (newValue) { 
            newValue && element.focus();
         },true);
      };    
});

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