Improve send form: check if address is valid using bitcore

js/directives.js

@@ -1 +1,23 @@
 'use strict';
+
+angular.module('copay')
+  .directive('validAddress', [function() {
+
+    var bitcore = require('bitcore');
+    var Address = bitcore.Address;
+
+    return {
+      require: 'ngModel',
+      link: function (scope, elem, attrs, ctrl) {
+        var validator = function(value){
+          var a = new Address(value);
+          ctrl.$setValidity('validAddress', a.isValid());
+          return value;
+        };
+
+        ctrl.$parsers.unshift(validator);
+        ctrl.$formatters.unshift(validator);
+      }
+    };
+  }]);
+