flow-graph-designer/lib/components/toolbar.js

A React component capable of flow graph designer.

"use strict";

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

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 _toolbar = require("./toolbar.less");

var _toolbar2 = _interopRequireDefault(_toolbar);

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; }

var DRAG_IMAGE_DOM_ID = "flow-icon-draged-image";

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

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

    return _possibleConstructorReturn(this, (Toolbar.__proto__ || Object.getPrototypeOf(Toolbar)).apply(this, arguments));
  }

  _createClass(Toolbar, [{
    key: "handleDragStart",
    value: function handleDragStart(_ref) {
      var type = _ref.type,
          action = _ref.action,
          name = _ref.name;

      return function (e) {
        e.dataTransfer.setData("type", type);
        e.dataTransfer.setData("action", action);
        e.dataTransfer.setData("nodeName", name);
        e.dataTransfer.setData("method", "new");
        var dragImage = e.target.cloneNode();
        dragImage.innerHTML = name;
        dragImage.style.width = "150px";
        dragImage.style.height = "23px";
        dragImage.style.display = "block";
        dragImage.style.border = "1px solid black";
        dragImage.style.backgroundColor = "lightyellow";
        dragImage.style.textAlign = "center";
        dragImage.id = DRAG_IMAGE_DOM_ID;
        document.body.append(dragImage);
        dragImage.style.position = "absolute";
        dragImage.style.left = "-100px";
        dragImage.style.top = "-100px";
        e.dataTransfer.setDragImage(dragImage, 10, 10);
      };
    }
  }, {
    key: "handleDragEnd",
    value: function handleDragEnd() {
      // 删除拖拽的图片
      var dragImage = document.getElementById(DRAG_IMAGE_DOM_ID);
      if (dragImage) {
        document.body.removeChild(dragImage);
      }
    }
  }, {
    key: "render",
    value: function render() {
      var _this2 = this;

      var _props = this.props,
          width = _props.width,
          iconWritingMode = _props.iconWritingMode;
      var _props$template = this.props.template,
          nodes = _props$template.nodes,
          nodeEntity = _props$template.entities.node;

      var tools = nodes.filter(function (x) {
        return nodeEntity[x].props.showInToolbar === "Y";
      });
      return _react2.default.createElement(
        "div",
        {
          className: "flow-icon-toolbar " + _toolbar2.default.mainClass,
          style: { width: width + "px", writingMode: iconWritingMode } },
        tools.map(function (x) {
          return _react2.default.createElement(
            "div",
            {
              className: "icon-wrap",
              key: x,
              title: nodeEntity[x].props.name,
              draggable: "true",
              onDragStart: _this2.handleDragStart({
                type: nodeEntity[x].type,
                action: nodeEntity[x].props.action,
                name: nodeEntity[x].props.name
              }),
              onDragEnd: _this2.handleDragEnd },
            _react2.default.createElement(
              "div",
              { className: "icon" },
              _react2.default.createElement("img", { src: nodeEntity[x].icon, alt: "" })
            )
          );
        })
      );
    }
  }]);

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

Toolbar.propsType = {
  template: _propTypes2.default.object
};

exports.default = Toolbar;