下拉关闭焦点 [英] dropdown closes on focus

问题描述

我想在输入字段的焦点上触发下拉菜单.但是每次我集中注意力时它都会打开并突然关闭.使用按钮切换一切正常.这是示例:http://codepen.io/piernik/pen/ByKRwE

这里是 HTML

<input type="text" class="form-control" ng-focus="show($event)"><div class="input-group-addon"><i class="fa fa-fw fa-calendar"></i></div>
<a class="btn btn-default" ng-click="toggleDropdown($event)">toggle</a><div class="dropdown" dropdown is-open="model.open"><ul class="dropdown-menu" role="menu">内容

和JS:

$scope.model = {打开:假};$scope.toggleDropdown = 函数($event){$event.preventDefault();$event.stopPropagation();$scope.model.open = !$scope.model.open;};$scope.show = 函数($event){$event.preventDefault();$event.stopPropagation();$scope.model.open = true;};$scope.hide = 函数($event){$event.preventDefault();$event.stopPropagation();$scope.model.open = false;};

解决方案

发生这种情况是因为单击事件也在您的输入中触发，阻止了其默认行为.

演示

JAVASCRIPT

angular.module('demo', ['ui.bootstrap']).controller('DemoController', function($scope) {$scope.open = false;$scope.prevent = function($event) {$event.stopPropagation();$event.preventDefault();};$scope.focus = function($event) {$scope.prevent($event);$scope.open = true;};$scope.toggle = function($event) {$scope.prevent($event);$scope.open = !$scope.open;}});

HTML

 <div class="btn btn-default" ng-click="toggle($event)">Toggle</div><div class="dropdown" dropdown is-open="open"><ul class="dropdown-menu" role="menu">内容

I want to trigger dropdown open on focus on input field. But it openes and suddenly closes every time I focus. With button toggle everything is ok. Here is example: http://codepen.io/piernik/pen/ByKRwE

Here is HTML

<div class="input-group">
    <input type="text" class="form-control" ng-focus="show($event)">

    <div class="input-group-addon"><i class="fa fa-fw fa-calendar"></i></div>
</div>
<a class="btn btn-default" ng-click="toggleDropdown($event)">toggle</a>

<div class="dropdown" dropdown is-open="model.open">
    <ul class="dropdown-menu" role="menu">
        Content
    </ul>
</div>

And JS:

$scope.model = {
                open: false
            };
            $scope.toggleDropdown = function ($event) {
                $event.preventDefault();
                $event.stopPropagation();
                $scope.model.open = !$scope.model.open;
            };
            $scope.show = function ($event) {
                $event.preventDefault();
                $event.stopPropagation();
                $scope.model.open = true;
            };
            $scope.hide = function ($event) {
                $event.preventDefault();
                $event.stopPropagation();
                $scope.model.open = false;
            };

解决方案

This is happening because the click event is also triggering in your input, preventing its default behavior.

DEMO

JAVASCRIPT

angular.module('demo', ['ui.bootstrap'])

  .controller('DemoController', function($scope) {

    $scope.open = false;

    $scope.prevent = function($event) {
      $event.stopPropagation();
      $event.preventDefault();
    };

    $scope.focus = function($event) {
      $scope.prevent($event);
      $scope.open = true;
    };

    $scope.toggle = function($event) {
      $scope.prevent($event);
      $scope.open = !$scope.open;
    }

  });

HTML

  <input type="text" check-if-lost-focus ng-click="prevent($event)"  ng-model="name" name="name" ng-focus="focus($event)">
    <div class="btn btn-default" ng-click="toggle($event)">Toggle</div>

    <div class="dropdown" dropdown is-open="open">
      <ul class="dropdown-menu" role="menu">
          Content
      </ul>
  </div>

这篇关于下拉关闭焦点的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！