懸停在幻燈片上時如何暫停角度間隔計時器

Question

為什么我可以將eventlisterner放置到我的代碼中，以便當鼠標光標懸停在一張幻燈片上時，計時器停止暫停？

輕彈

$scope.jobNotification = 0;

var timer;
$scope.startAuto = function() {
    timer = $interval(function(){
        $scope.jobNotification = ($scope.jobNotification + 1) % $scope.jobs.length;
    }, 5000);
};

$scope.isActive = function (index) {
    return $scope.jobNotification === index;

 };

$scope.showJobNotification = function (index) {
    if (timer){
        $interval.cancel(timer);
        $scope.startAuto();
    }
    $scope.jobNotification = index;
};

Answer 1

您可以使用ng-mouseenter和ng-mouseleave指令來停止和啟動您的計時器，更新后的監聽器http://plnkr.co/edit/09bf3T?p=preview ：

$scope.stopAuto = function() {
  console.log('tickCtrl.stopAuto() triggered');
  if(timer) {
      $interval.cancel(timer);
      timer = undefined;        
  }
}

<ul ng-mouseover="stopAuto()" ng-mouseleave="startAuto()">
    <li data-ng-repeat="job in jobs" ng-show="isActive($index)">
        <h1>{{job.jobTitle}}</h1>
        <p>{{job.sector}}</p>
    </li>
</ul>