@salesforce/design-system-react/module/components/button-group/index.js

Salesforce Lightning Design System for React

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/* Copyright (c) 2015-present, salesforce.com, inc. All rights reserved */

/* Licensed under BSD 3-Clause - see LICENSE.txt or git.io/sfdc-license */
// Implements the [Button Group design pattern](https://lightningdesignsystem.com/components/button-groups/) in React.
// Based on SLDS v2.1.1
import React from 'react';
import PropTypes from 'prop-types';
import classNames from 'classnames';
import assign from 'lodash.assign';
import { BUTTON_GROUP } from '../../utilities/constants';
var propTypes = {
  /**
   * Children are expected to be components. If last button triggers a dropdown menu, use Dropdown instead of Button. _Tested with snapshot testing._
   */
  children: PropTypes.node.isRequired,

  /**
   * CSS classes added to `slds-button-group` or `slds-checkbox_button-group` tag
   */
  className: PropTypes.oneOfType([PropTypes.array, PropTypes.object, PropTypes.string]),

  /**
   * If the `labels.label` prop is set, a `.slds-form-element` classed fieldset element is added as a container. This prop applies classes to that element
   */
  classNameContainer: PropTypes.oneOfType([PropTypes.array, PropTypes.object, PropTypes.string]),

  /**
   * **Text labels for internationalization**
   * This object is merged with the default props object on every render.
   * * `error`: Message to display when any of Checkboxes are in an error state. _Tested with snapshot testing._
   * * `label`: This label appears above the button group. _Tested with snapshot testing._
   */
  labels: PropTypes.shape({
    error: PropTypes.string,
    label: PropTypes.string
  }),

  /**
   * Use checkbox variant for "Checkbox Button Group" styling and add Checkbox components as children _Tested with snapshot testing._
   */
  variant: PropTypes.oneOf(['checkbox', 'list'])
};
var defaultProps = {
  labels: {}
};
/**
 * The ButtonGroup component wraps other components (ie. Button, MenuDropdown, PopoverTooltip, Checkboxes, etc).
 */

var ButtonGroup =
/*#__PURE__*/
function (_React$Component) {
  _inherits(ButtonGroup, _React$Component);

  function ButtonGroup() {
    _classCallCheck(this, ButtonGroup);

    return _possibleConstructorReturn(this, _getPrototypeOf(ButtonGroup).apply(this, arguments));
  }

  _createClass(ButtonGroup, [{
    key: "render",
    value: function render() {
      // Merge objects of strings with their default object
      var labels = assign({}, defaultProps.labels, this.props.labels);
      var zeroIndexLength = React.Children.count(this.props.children) - 1;
      var children = this.props.children;

      if (zeroIndexLength > 0) {
        children = React.Children.map(this.props.children, function (child, index) {
          var newChild;

          if (index === zeroIndexLength) {
            newChild = React.cloneElement(child, {
              triggerClassName: 'slds-button_last'
            });
          }

          return newChild || child;
        });
      }

      var component;

      if (this.props.variant === 'checkbox') {
        children = React.Children.map(this.props.children, function (child) {
          return React.cloneElement(child, {
            variant: 'button-group'
          });
        });
        component = React.createElement("div", {
          className: classNames('slds-checkbox_button-group', this.props.className)
        }, children);
      } else if (this.props.variant === 'list') {
        component = React.createElement("ul", {
          className: classNames('slds-button-group-list', this.props.className)
        }, React.Children.map(this.props.children, function (child) {
          return React.createElement("li", null, child);
        }));
      } else {
        component = React.createElement("div", {
          className: classNames('slds-button-group', this.props.className),
          role: "group"
        }, children);
      }

      if (this.props.variant === 'checkbox' || this.props.labels.label) {
        component = React.createElement("fieldset", {
          className: classNames('slds-form-element', {
            'slds-has-error': labels.error
          }, this.props.classNameContainer)
        }, React.createElement("legend", {
          className: "slds-form-element__legend slds-form-element__label"
        }, this.props.labels.label), React.createElement("div", {
          className: "slds-form-element__control"
        }, component, labels.error ? React.createElement("div", {
          className: "slds-form-element__help"
        }, labels.error) : null));
      }

      return component;
    }
  }]);

  return ButtonGroup;
}(React.Component);

ButtonGroup.displayName = BUTTON_GROUP;
ButtonGroup.propTypes = propTypes;
ButtonGroup.defaultProps = defaultProps;
export default ButtonGroup;
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