Function formDirectiveFactory

tools/ngui/static/js/lib/angular.js:11060–11115

(isNgForm)

    </doc:example>
 */
var formDirectiveFactory = function(isNgForm) {
  return ['$timeout', function($timeout) {
    var formDirective = {
      name: 'form',
      restrict: 'E',
      controller: FormController,
      compile: function() {
        return {
          pre: function(scope, formElement, attr, controller) {
            if (!attr.action) {
              // we can't use jq events because if a form is destroyed during submission the default
              // action is not prevented. see #1238
              //
              // IE 9 is not affected because it doesn't fire a submit event and try to do a full
              // page reload if the form was destroyed by submission of the form via a click handler
              // on a button in the form. Looks like an IE9 specific bug.
              var preventDefaultListener = function(event) {
                event.preventDefault
                  ? event.preventDefault()
                  : event.returnValue = false; // IE
              };

              addEventListenerFn(formElement[0], 'submit', preventDefaultListener);

              // unregister the preventDefault listener so that we don't not leak memory but in a
              // way that will achieve the prevention of the default action.
              formElement.bind('$destroy', function() {
                $timeout(function() {
                  removeEventListenerFn(formElement[0], 'submit', preventDefaultListener);
                }, 0, false);
              });
            }

            var parentFormCtrl = formElement.parent().controller('form'),
                alias = attr.name || attr.ngForm;

            if (alias) {
              scope[alias] = controller;
            }
            if (parentFormCtrl) {
              formElement.bind('$destroy', function() {
                parentFormCtrl.$removeControl(controller);
                if (alias) {
                  scope[alias] = undefined;
                }
                extend(controller, nullFormCtrl); //stop propagating child destruction handlers upwards
              });
            }
          }
        };
      }
    };

    return isNgForm ? extend(copy(formDirective), {restrict: 'EAC'}) : formDirective;
  }];
};

var formDirective = formDirectiveFactory();