medium-draft/lib/components/addbutton.js

A medium like rich text editor built upon draft-js with an emphasis on eliminating mouse usage by adding relevant keyboard shortcuts

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _reactTransitionGroup = require('react-transition-group');

var _util = require('../util');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

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 './addbutton.scss';

/**
 * Implementation of the medium-link side `+` button to insert various rich blocks
 * like Images/Embeds/Videos.
 */
var AddButton = function (_React$Component) {
  _inherits(AddButton, _React$Component);

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

    var _this = _possibleConstructorReturn(this, (AddButton.__proto__ || Object.getPrototypeOf(AddButton)).call(this, props));

    _this.state = {
      style: {},
      visible: false,
      isOpen: false
    };
    _this.node = null;
    _this.blockKey = '';
    _this.blockType = '';
    _this.blockLength = -1;

    _this.findNode = _this.findNode.bind(_this);
    _this.hideBlock = _this.hideBlock.bind(_this);
    _this.openToolbar = _this.openToolbar.bind(_this);
    return _this;
  }

  // To show + button only when text length == 0


  _createClass(AddButton, [{
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(newProps) {
      var editorState = newProps.editorState;

      var contentState = editorState.getCurrentContent();
      var selectionState = editorState.getSelection();
      if (!selectionState.isCollapsed() || selectionState.anchorKey !== selectionState.focusKey || contentState.getBlockForKey(selectionState.getAnchorKey()).getType().indexOf('atomic') >= 0) {
        // console.log('no sel');
        this.hideBlock();
        return;
      }
      var block = contentState.getBlockForKey(selectionState.anchorKey);
      var bkey = block.getKey();
      if (block.getLength() > 0) {
        this.hideBlock();
        return;
      }
      if (block.getType() !== this.blockType) {
        this.blockType = block.getType();
        if (block.getLength() === 0) {
          setTimeout(this.findNode, 0);
        }
        this.blockKey = bkey;
        return;
      }
      if (this.blockKey === bkey) {
        // console.log('block exists');
        if (block.getLength() > 0) {
          this.hideBlock();
        } else {
          this.setState({
            visible: true
          });
        }
        return;
      }
      this.blockKey = bkey;
      if (block.getLength() > 0) {
        // console.log('no len');
        this.hideBlock();
        return;
      }
      setTimeout(this.findNode, 0);
    }
  }, {
    key: 'hideBlock',
    value: function hideBlock() {
      if (this.state.visible) {
        this.setState({
          visible: false,
          isOpen: false
        });
      }
    }
  }, {
    key: 'openToolbar',
    value: function openToolbar() {
      var _this2 = this;

      this.setState({
        isOpen: !this.state.isOpen
      }, function () {
        // callback function
        // save page state
        var x = window.scrollX || window.pageXOffset;
        var y = window.scrollY || window.pageYOffset;
        // do focus
        _this2.props.focus();
        // back previous window state
        window.scrollTo(x, y);
      });
    }
  }, {
    key: 'findNode',
    value: function findNode() {
      // eslint-disable-next-line no-undef
      var node = (0, _util.getSelectedBlockNode)(window);
      if (node === this.node) {
        // console.log('Node exists');
        return;
      }
      if (!node) {
        // console.log('no node');
        this.setState({
          visible: false,
          isOpen: false
        });
        return;
      }
      // const rect = node.getBoundingClientRect();
      this.node = node;
      this.setState({
        visible: true,
        style: {
          top: node.offsetTop - 3
        }
      });
    }
  }, {
    key: 'render',
    value: function render() {
      var _this3 = this;

      if (!this.state.visible) {
        return null;
      }
      return _react2.default.createElement(
        'div',
        { className: 'md-side-toolbar', style: this.state.style },
        _react2.default.createElement(
          'button',
          {
            onClick: this.openToolbar,
            className: 'md-sb-button md-add-button' + (this.state.isOpen ? ' md-open-button' : ''),
            type: 'button'
          },
          _react2.default.createElement(
            'svg',
            { viewBox: '0 0 8 8', height: '14', width: '14' },
            _react2.default.createElement('path', { d: 'M3 0v3h-3v2h3v3h2v-3h3v-2h-3v-3h-2z' })
          )
        ),
        this.state.isOpen ? _react2.default.createElement(
          _reactTransitionGroup.TransitionGroup,
          null,
          this.props.sideButtons.map(function (button) {
            var Button = button.component;
            var extraProps = button.props ? button.props : {};
            return _react2.default.createElement(
              _reactTransitionGroup.CSSTransition,
              {
                key: button.title,
                classNames: 'md-add-btn-anim',
                appear: true,
                timeout: {
                  enter: 200,
                  exit: 100,
                  appear: 100
                }
              },
              _react2.default.createElement(Button, _extends({}, extraProps, {
                getEditorState: _this3.props.getEditorState,
                setEditorState: _this3.props.setEditorState,
                close: _this3.openToolbar
              }))
            );
          })
        ) : null
      );
    }
  }]);

  return AddButton;
}(_react2.default.Component);

exports.default = AddButton;


AddButton.propTypes = {
  focus: _propTypes2.default.func,
  getEditorState: _propTypes2.default.func.isRequired,
  setEditorState: _propTypes2.default.func.isRequired,
  sideButtons: _propTypes2.default.arrayOf(_propTypes2.default.object)
};