HP. HP. - 4 months ago 9
jQuery Question

Angularjs directive to Insert text at textarea caret

I have controller

MyCtrl
and directive
myText
. When a model in
MyCtrl
changes, I want to update the
textarea
of
myText
directive by inserting the text at current position / caret.

I tried to reuse the code from this Inserting a text where cursor is using Javascript/jquery

My Code: http://plnkr.co/edit/WfucIVbls2eekL8kUp7e

Here is my HTML:

<!DOCTYPE html>
<html ng-app="plunker">

<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link href="style.css" rel="stylesheet" />
<script data-semver="1.2.10" src="http://code.angularjs.org/1.2.10/angular.js" data-require="angular.js@1.2.x"></script>
<script src="app.js"></script>
</head>

<body>
<div ng-controller="MyCtrl">
<input ng-model="someInput">
<button ng-click="add()">Add</button>
<p ng-repeat="item in items">Created {{ item }}</p>
</div>

<textarea my-text="">

</textarea>

</body>

</html>


Javascript:

var app = angular.module('plunker', []);

app.controller('MyCtrl', function($scope, $rootScope) {
$scope.items = [];

$scope.add = function() {
$scope.items.push($scope.someInput);
$rootScope.$broadcast('add', $scope.someInput);
}
});

app.directive('myText', ['$rootScope', function($rootScope) {
return {
link: function(scope, element, attrs) {
$rootScope.$on('add', function(e, val) {
console.log('on add');
console.log(val);

if (document.selection) {
element.focus();
var sel = document.selection.createRange();
sel.text = val;
element.focus();
} else if (element.selectionStart || element.selectionStart === 0) {
var startPos = element.selectionStart;
var endPos = element.selectionEnd;
var scrollTop = element.scrollTop;
element.value = element.value.substring(0, startPos) + val + element.value.substring(endPos, element.value.length);
element.focus();
element.selectionStart = startPos + val.length;
element.selectionEnd = startPos + val.length;
element.scrollTop = scrollTop;
} else {
element.value += val;
element.focus();
}

});
}
}
}])


It doesn't work now because
element
is not the DOM object. Here is the error:

TypeError: Object [object Object] has no method 'focus'


QUESTION: So my question is how to fix this? Or how to get the real DOM object from angular element object?

Answer

Try:

var domElement = element[0];

DEMO