AngularJS directive for autoNumeric.js

angular-autoNumeric.js

// Directive for autoNumeric.js
// Require AngularJS, jQuery and autoNumeric.js
angular.module('crunch.ui.numeric', []).directive('crNumeric', [function () {
    'use strict';
    // Declare a empty options object
    var options = {};
    return {
        // Require ng-model in the element attribute for watching changes.
        require: '?ngModel',
        // This directive only works when used in element's attribute (e.g: cr-numeric)
        restrict: 'A',
        compile: function (tElm, tAttrs) {
            
            var isTextInput = tElm.is('input:text');

            return function (scope, elm, attrs, controller) {
                // Get instance-specific options.
                var opts = angular.extend({}, options, scope.$eval(attrs.crNumeric));
                
                // Helper method to update autoNumeric with new value.
                var updateElement = function (element, newVal) {
                    // Only set value if value is numeric
                    if ($.isNumeric(newVal))
                        element.autoNumeric('set', newVal);
                };    

                // Initialize element as autoNumeric with options.
                elm.autoNumeric(opts);
                
                // if element has controller, wire it (only for <input type="text" />)
                if (controller && isTextInput) {
                    // watch for external changes to model and re-render element
                    scope.$watch(tAttrs.ngModel, function (current, old) {
                        controller.$render();
                    });
                    // render element as autoNumeric
                    controller.$render = function () {
                        updateElement(elm, controller.$viewValue);
                    }
                    // Detect changes on element and update model.
                    elm.on('change', function (e) {
                        scope.$apply(function () {
                            controller.$setViewValue(elm.autoNumeric('get'));
                        });
                    });
                }
                else {
                    // Listen for changes to value changes and re-render element.
                    // Useful when binding to a readonly input field.
                    if (isTextInput) {
                        attrs.$observe('value', function (val) {
                            updateElement(elm, val);
                        });
                    }
                }
            }
        } // compile
    } // return
}]);

Do you mind if I do a full repository with bower and npm starting with this code? Thanks a lot! This is very useful gist!

hi! im using this autonumeric code on my angularJS app, but when the form is render the element it's dirty, so my required levels shows, do you know how to set dirty false at initialization

A pen for quick testing:
http://codepen.io/a-magdy/pen/wGjqrp

Your directive works fine!! I'm getting just a problem and happens when the user tries to copy/paste some string.The directive is not invalidating the input data.

heres an updated version that allows clearing the value (by setting to null or undefined)
https://gist.github.com/kiasyn/cf749f391e4b0e174e1f0faebcac1482