javascript - Scroll to element ID if ng-model is true AngularJS -


i have page display list (result of search input).

i'm using ng-model capture input text: ng-model="search_text".

thing want autoscroll div containing list every time model has something. if empty should nothing, if written in search_text should trick , auto-scroll down list results.

you achieve simple directive in demo fiddle. uses $anchorscroll() implement auto-scroll feature.

view

<div ng-controller="myctrl">   <input ng-model="searchtext" type="text">   <div id="list" auto-scroller id-to-scroll-to="'list'" trigger="searchtext">      list   </div> </div>

angularjs application / directive

var myapp = angular.module('myapp',[]);  myapp.controller('myctrl', function ($scope) {});  myapp.directive('autoscroller', function ($location, $anchorscroll, $timeout) {     return {       restrit: 'a',       scope: {         trigger: '=',         idtoscrollto: '='       },       link: function (scope, element, attrs) {         scope.$watch('trigger', function (newvalue, oldvalue) {           if (newvalue && newvalue !== oldvalue) {             $timeout(function () {               $location.hash(scope.idtoscrollto);               $anchorscroll();             });           }         });       }     } });

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