我正在通过在AngularJS中构建指令慢慢摸索。目前,我的指令如下:
.directive('myDirective', function () {
return {
restrict:'E',
transclude: true,
scope: {
showLinks: '=?',
query: '='
},
templateUrl: '/directives/my-directive.html',
controller: function ($scope) {
if (angular.isUndefined($scope.showLinks)) {
$scope.showLinks = true;
}
$scope.getLocation = function(l) {
// Get width of "field"
};
}
};
});
my-directive.html中的标记如下所示:
<div style="width:100%;">
<input id="field" type="text" autofocus autocomplete="off" class="form-control" ng-model="query"
typeahead="option as option.Name for option in getLocation($viewValue)"
typeahead-min-length="3" typeahead-template-url="location.html" />
<script type="text/ng-template" id="location.html">
{{showLinks}} <!-- Never renders -->
<span bind-html-unsafe="match.label | typeaheadHighlight:query"></span>
</script>
</div>
当用户开始输入时,将在控制器中触发getLocation函数。触发getLocation时,我需要获取字段文本框的宽度。如何在AngularJS中获取该元素的宽度?
答案 0 :(得分:4)
您需要在链接函数中传递element
作为参数,并使用offsetWidth
计算其宽度。
link: function(scope, element, attrs) {
var elInput = element.find('input');
alert(elInput[0].offsetWidth) ; // gives offsetwidth of element
}
您可以在以下链接中以某种方式引用类似的方案:
希望这会帮助你:))
更新代码:
app.controller('MainCtrl', function($scope, $element) {
var elInput = $element.find('input');
alert(elInput[0].offsetWidth);
$scope.name = 'World';
});