AngularJS并监听窗口事件/消息

Question

我试图从窗口事件触发AngularJS控制器函数。但是，函数内部的$ http（）不会执行。它就此停止。

window.addEventListener("message", function(msg) {

    // this works!!
    alert(angular.element(document.getElementById('ListFindRooms')).scope().var);

    // this kinda works, but Angular $http() inside the funciton is not executed
    angular.element(document.getElementById('ListFindRooms')).scope().function();
}

});