@edanchenkov/react-d3-graph/lib/components/link/Link.js

React component to build interactive and configurable graphs with d3 effortlessly

'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 _react = require('react');

var _react2 = _interopRequireDefault(_react);

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; }

/**
 * Link component is responsible for encapsulating link render.
 * @example
 * const onClickLink = function(source, target) {
 *      window.alert(`Clicked link between ${source} and ${target}`);
 * };
 *
 * const onRightClickLink = function(source, target) {
 *      window.alert(`Right clicked link between ${source} and ${target}`);
 * };
 *
 * const onMouseOverLink = function(source, target) {
 *      window.alert(`Mouse over in link between ${source} and ${target}`);
 * };
 *
 * const onMouseOutLink = function(source, target) {
 *      window.alert(`Mouse out link between ${source} and ${target}`);
 * };
 *
 * <Link
 *     d="M1..."
 *     source='idSourceNode'
 *     target='idTargetNode'
 *     markerId='marker-small'
 *     strokeWidth=1.5
 *     stroke='green'
 *     className='link'
 *     opacity=1
 *     mouseCursor='pointer'
 *     onClickLink={onClickLink}
 *     onRightClickLink={onRightClickLink}
 *     onMouseOverLink={onMouseOverLink}
 *     onMouseOutLink={onMouseOutLink} />
 */
var Link = function (_React$Component) {
    _inherits(Link, _React$Component);

    function Link() {
        var _ref;

        var _temp, _this, _ret;

        _classCallCheck(this, Link);

        for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
            args[_key] = arguments[_key];
        }

        return _ret = (_temp = (_this = _possibleConstructorReturn(this, (_ref = Link.__proto__ || Object.getPrototypeOf(Link)).call.apply(_ref, [this].concat(args))), _this), _this.handleOnClickLink = function () {
            return _this.props.onClickLink && _this.props.onClickLink(_this.props.source, _this.props.target);
        }, _this.handleOnRightClickLink = function (event) {
            return _this.props.onRightClickLink && _this.props.onRightClickLink(event, _this.props.source, _this.props.target);
        }, _this.handleOnMouseOverLink = function () {
            return _this.props.onMouseOverLink && _this.props.onMouseOverLink(_this.props.source, _this.props.target);
        }, _this.handleOnMouseOutLink = function () {
            return _this.props.onMouseOutLink && _this.props.onMouseOutLink(_this.props.source, _this.props.target);
        }, _temp), _possibleConstructorReturn(_this, _ret);
    }
    /**
     * Handle link click event.
     * @returns {undefined}
     */


    /**
     * Handle link right click event.
     * @param {Object} event - native event.
     * @returns {undefined}
     */


    /**
     * Handle mouse over link event.
     * @returns {undefined}
     */


    /**
     * Handle mouse out link event.
     * @returns {undefined}
     */


    _createClass(Link, [{
        key: 'render',
        value: function render() {
            var lineStyle = {
                strokeWidth: this.props.strokeWidth,
                stroke: this.props.stroke,
                opacity: this.props.opacity,
                fill: 'none',
                cursor: this.props.mouseCursor
            };

            var lineProps = {
                d: this.props.d,
                style: lineStyle,
                className: "link-path"
            };

            var gProps = {
                className: this.props.className,
                onContextMenu: this.handleOnRightClickLink,
                onMouseOut: this.handleOnMouseOutLink,
                onMouseOver: this.handleOnMouseOverLink,
                onClick: this.handleOnClickLink
            };

            if (this.props.markerId) {
                lineProps.markerEnd = 'url(#' + this.props.markerId + ')';
            }

            var _props = this.props,
                label = _props.label,
                linkId = _props.linkId,
                labelStyle = _props.labelStyle;


            return _react2.default.createElement(
                'g',
                gProps,
                _react2.default.createElement('path', _extends({ id: linkId }, lineProps)),
                this.props.showLabel && _react2.default.createElement(
                    'text',
                    labelStyle,
                    _react2.default.createElement(
                        'textPath',
                        { textAnchor: 'middle', startOffset: '50%', xlinkHref: '#' + linkId },
                        label
                    )
                )
            );
        }
    }]);

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

exports.default = Link;