I recently developed a custom directive that includes both a link and controller. Here is the code snippet:
var delightMeterApp = angular.module('delightMeterApp', []);
delightMeterApp.directive('delightMeter', function () {
function link($scope, $element, $attrs) {
// Custom DOM manipulation logic here
}
return {
scope: {
score: '=ngModel'
},
restrict: 'E',
templateUrl: 'svgmeter.html',
link: link,
controller: 'delightMeterController'
};
});
delightMeterApp.controller('delightMeterController', function ($scope) {
$scope.delightScore = 0;
});
In my project, I need to call the `ScoreRotateNeedle` function, which is located within the directive's link, from the controller. This function should be triggered on the `ng-change` event in the HTML file as shown below:
<div ng-controller="delightMeterController">
<delight-meter ng-model="delightScore"></delight-meter>
<input id="txtScore" type="text" ng-model="delightScore" />{{delightScore}}
</div>
However, it is not recommended to include DOM manipulations inside controllers. Therefore, I am looking for ways to move this function out of the controller and potentially into the directive's link function or another suitable location. Any suggestions on how to achieve this? Should I consider using a service instead?
Update:
<div id="delightmeter">
<svg width='500px' height='300px' version='1.1' xmlns='http://www.w3.org/2000/svg'>
<g>
<text x='100' y='220' fill='black'>0</text>
<text x='300' y='220' fill='black'>100</text>
<path class='arc' id='arc1' d='' />
<path class='arc' id='arc2' d='' />
<path class='arc' id='arc3' d='' />
<path class='arc' id='arc4' d='' />
<path class='arc' id='arc5' d='' />
<g class='needleset'>
<circle class='needle-center' cx='200' cy='200' r='5'></circle>
<path class='needle' d='M 195 198 L 200 100 L 205 202'></path>
<circle class='needle-center' cx='200' cy='200' r='5'></circle>
</g>
</g>
</svg>
</div>