salix/client/core/src/directives/focus.js

import {module} from '../module';

/**
 *  Sets the focus and selects the text on the input.
 */
export function directive() {
    return {
        restrict: 'A',
        link: function($scope, $element, $attrs) {
            $scope.$watch('', function() {
                let input = $element[0];
                let selector = 'input, textarea, button, submit';

                if(!input.matches(selector))
                    input = input.querySelector(selector);
                if(!input)
                    throw new Error(`vnFocus: Can't find a focusable element`);

                input.focus();

                if(input.select)
                    input.select();
            });
        }
    };
}
module.directive('vnFocus', directive);