accessible-react-tabs/es/Tabs.js

Accessible tab component for React

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

import React from 'react';
import Tab from './Tab';
import Tabpanel from './Tabpanel';

var Tabs = function (_React$Component) {
  _inherits(Tabs, _React$Component);

  function Tabs(props) {
    _classCallCheck(this, Tabs);

    var _this = _possibleConstructorReturn(this, _React$Component.call(this, props));

    _this.tabsLength = _this.props.data.length;
    _this.keys = {
      esc: 27,
      up: 38,
      down: 40,
      space: 32,
      enter: 13,
      left: 37,
      right: 39
    };

    _this.state = {
      selected: 0
    };

    _this.buildClassList = _this.buildClassList.bind(_this);
    _this.handleClick = _this.handleClick.bind(_this);
    _this.handleKeyDown = _this.handleKeyDown.bind(_this);
    return _this;
  }

  Tabs.prototype.buildClassList = function buildClassList() {
    var classList = ['dz0-wrapper-tabs'];
    if (this.props.classes) {
      classList.push(this.props.classes);
    }
    return classList.join(' ');
  };

  Tabs.prototype.handleClick = function handleClick(event, index) {
    event.preventDefault();
    if (this.state.selected === index) {
      return;
    }

    this.setState({
      selected: index
    });

    if (this.props.data[index].callback) {
      this.props.data[index].callback();
    }
  };

  Tabs.prototype.handleKeyDown = function handleKeyDown(event) {
    if (event.keyCode === this.keys.up || event.keyCode === this.keys.down || event.keyCode === this.keys.left || event.keyCode === this.keys.right) {
      event.preventDefault();
    } else {
      return true;
    }

    var targetIndex = void 0;

    if ((event.keyCode === this.keys.up || event.keyCode === this.keys.left) && this.state.selected > 0) {
      targetIndex = this.state.selected - 1;
    } else if ((event.keyCode === this.keys.down || event.keyCode === this.keys.right) && this.state.selected < this.tabsLength - 1) {
      targetIndex = this.state.selected + 1;
    } else {
      return;
    }

    this.setState({
      selected: targetIndex
    });

    if (this.props.callback) {
      this.props.callback();
    }
  };

  Tabs.prototype.render = function render() {
    var _this2 = this;

    var _props = this.props,
        data = _props.data,
        loading = _props.loading;


    if (!data.length) {
      return null;
    }

    return React.createElement(
      'div',
      { className: this.buildClassList() },
      React.createElement(
        'div',
        { className: 'dz0-tabs', role: 'tablist' },
        data.map(function (tab, index) {
          var label = tab.label;
          var cb = tab.callback;
          return React.createElement(Tab, { key: index, index: index, selectedIndex: _this2.state.selected, label: label, onClick: _this2.handleClick, onKeyDown: _this2.handleKeyDown });
        })
      ),
      React.createElement(
        'div',
        { className: 'dz0-tabpanels' },
        data.map(function (tab, index) {
          var label = tab.label;
          var content = tab.content;
          return React.createElement(Tabpanel, { key: index, index: index, selectedIndex: _this2.state.selected, label: label, comp: content });
        })
      )
    );
  };

  return Tabs;
}(React.Component);

export { Tabs as default };