choerodon-ui/es/rc-components/editor-mention/component/Suggestions.react.js

An enterprise-class UI design language and React-based implementation

import _objectSpread from "@babel/runtime/helpers/objectSpread2";
import _classCallCheck from "@babel/runtime/helpers/classCallCheck";
import _createClass from "@babel/runtime/helpers/createClass";
import _assertThisInitialized from "@babel/runtime/helpers/assertThisInitialized";
import _inherits from "@babel/runtime/helpers/inherits";
import _possibleConstructorReturn from "@babel/runtime/helpers/possibleConstructorReturn";
import _getPrototypeOf from "@babel/runtime/helpers/getPrototypeOf";
import _defineProperty from "@babel/runtime/helpers/defineProperty";

function _createSuper(Derived) {
  function isNativeReflectConstruct() {
    if (typeof Reflect === "undefined" || !Reflect.construct) return false;
    if (Reflect.construct.sham) return false;
    if (typeof Proxy === "function") return true;

    try {
      Date.prototype.toString.call(Reflect.construct(Date, [], function () {}));
      return true;
    } catch (e) {
      return false;
    }
  }

  return function () {
    var Super = _getPrototypeOf(Derived),
        result;

    if (isNativeReflectConstruct()) {
      var NewTarget = _getPrototypeOf(this).constructor;

      result = Reflect.construct(Super, arguments, NewTarget);
    } else {
      result = Super.apply(this, arguments);
    }

    return _possibleConstructorReturn(this, result);
  };
}

import React, { Children, cloneElement, Component, isValidElement } from 'react';
import ReactDOM from 'react-dom';
import PropTypes from 'prop-types';
import { decode } from 'draft-js/lib/DraftOffsetKey';
import cx from 'classnames';
import scrollIntoView from 'dom-scroll-into-view';
import Animate from '../../../animate';
import Nav from './Nav.react';
import SuggetionWrapper from './SuggestionWrapper.react';
import insertMention from '../utils/insertMention';
import clearMention from '../utils/clearMention';
import getOffset from '../utils/getOffset';
import getMentions from '../utils/getMentions';
import getSearchWord from '../utils/getSearchWord';

var isNotFalse = function isNotFalse(i) {
  return i !== false;
};

var Suggestions =
/*#__PURE__*/
function (_Component) {
  _inherits(Suggestions, _Component);

  var _super = _createSuper(Suggestions);

  function Suggestions(props) {
    var _this;

    _classCallCheck(this, Suggestions);

    _this = _super.call(this, props);

    _defineProperty(_assertThisInitialized(_this), "onEditorStateChange", function (editorState) {
      var offset = _this.props.store.getOffset();

      if (offset.size === 0) {
        _this.closeDropDown();

        return editorState;
      }

      var selection = editorState.getSelection(); // 修复: 焦点移出再移入时, dropdown 会闪动一下
      // 原因: https://github.com/facebook/draft-js/blob/67c5e69499e3b0c149ce83b004872afdf4180463/src/component/handlers/edit/editOnFocus.js#L33
      // 此处强制 update 了一下,因此 onEditorStateChange 会 call 两次

      if (!_this.props.callbacks.getEditorState().getSelection().getHasFocus() && selection.getHasFocus()) {
        return editorState;
      }

      var _getSearchWord = getSearchWord(editorState, selection),
          word = _getSearchWord.word;

      if (!word) {
        _this.closeDropDown();

        return editorState;
      }

      var selectionInsideMention = offset.map(function (_ref) {
        var offsetKey = _ref.offsetKey;

        var _decode = decode(offsetKey),
            blockKey = _decode.blockKey,
            decoratorKey = _decode.decoratorKey,
            leafKey = _decode.leafKey;

        if (blockKey !== selection.anchorKey) {
          return false;
        }

        var leaf = editorState.getBlockTree(blockKey).getIn([decoratorKey, 'leaves', leafKey]);

        if (!leaf) {
          return false;
        }

        var startKey = leaf.get('start');
        var endKey = leaf.get('end'); // 处理只有一个 `@` 符号时的情况

        if (!word) {
          return false;
        }

        if (startKey === endKey - 1) {
          return selection.anchorOffset >= startKey + 1 && selection.anchorOffset <= endKey ? offsetKey : false;
        }

        return selection.anchorOffset > startKey + 1 && selection.anchorOffset <= endKey ? offsetKey : false;
      });
      var selectionInText = selectionInsideMention.some(isNotFalse);
      _this.activeOffsetKey = selectionInsideMention.find(isNotFalse);

      var trigger = _this.props.store.getTrigger(_this.activeOffsetKey);

      if (!selectionInText || !selection.getHasFocus()) {
        _this.closeDropDown();

        return editorState;
      }

      var searchValue = word.substring(trigger.length, word.length);

      if (_this.lastSearchValue !== searchValue || _this.lastTrigger !== trigger) {
        _this.lastSearchValue = searchValue;
        _this.lastTrigger = trigger;

        _this.props.onSearchChange(searchValue, trigger);
      }

      if (!_this.state.active) {
        // 暂时没有更优雅的方法
        if (!trigger || word.indexOf(trigger) !== -1) {
          _this.openDropDown();
        }
      }

      return editorState;
    });

    _defineProperty(_assertThisInitialized(_this), "onUpArrow", function (ev) {
      ev.preventDefault();

      if (_this.props.suggestions.length > 0) {
        var newIndex = _this.state.focusedIndex - 1;

        _this.setState({
          focusedIndex: Math.max(newIndex, 0)
        });
      }
    });

    _defineProperty(_assertThisInitialized(_this), "onBlur", function (ev) {
      ev.preventDefault();

      _this.closeDropDown();
    });

    _defineProperty(_assertThisInitialized(_this), "onDownArrow", function (ev) {
      ev.preventDefault();
      var newIndex = _this.state.focusedIndex + 1;

      _this.setState({
        focusedIndex: newIndex >= _this.props.suggestions.length ? 0 : newIndex
      });
    });

    _defineProperty(_assertThisInitialized(_this), "getContainer", function () {
      var popupContainer = document.createElement('div');
      var mountNode;

      if (_this.props.getSuggestionContainer) {
        mountNode = _this.props.getSuggestionContainer();
        popupContainer.style.position = 'relative';
      } else {
        mountNode = document.body;
      }

      mountNode.appendChild(popupContainer);
      return popupContainer;
    });

    _defineProperty(_assertThisInitialized(_this), "handleKeyBinding", function (command) {
      return command === 'split-block';
    });

    _defineProperty(_assertThisInitialized(_this), "handleReturn", function (ev) {
      ev.preventDefault();
      var selectedSuggestion = _this.props.suggestions[_this.state.focusedIndex];

      if (selectedSuggestion) {
        if (isValidElement(selectedSuggestion)) {
          _this.onMentionSelect(selectedSuggestion.props.value, selectedSuggestion.props.data);
        } else {
          _this.onMentionSelect(selectedSuggestion);
        }

        _this.lastSearchValue = null;
        _this.lastTrigger = null;
        return true;
      }

      return false;
    });

    _defineProperty(_assertThisInitialized(_this), "renderReady", function () {
      var container = _this.dropdownContainer;

      if (!container) {
        return;
      }

      var active = _this.state.active;

      var _assertThisInitialize = _assertThisInitialized(_this),
          activeOffsetKey = _assertThisInitialize.activeOffsetKey;

      var offset = _this.props.store.getOffset();

      var dropDownPosition = offset.get(activeOffsetKey);

      if (active && dropDownPosition) {
        var placement = _this.props.placement;

        var dropDownStyle = _this.getPositionStyle(true, dropDownPosition.position()); // Check if the above space is crowded


        var isTopCrowded = parseFloat(dropDownStyle.top) - window.scrollY - container.offsetHeight < 0; // Check if the under space is crowded

        var isBottomCrowded = (window.innerHeight || document.documentElement.clientHeight) - (parseFloat(dropDownStyle.top) - window.scrollY) - container.offsetHeight < 0;

        if (placement === 'top' && !isTopCrowded) {
          // The above space isn't crowded
          dropDownStyle.top = "".concat(parseFloat(dropDownStyle.top) - container.offsetHeight || 0, "px");
        }

        if (placement === 'bottom' && isBottomCrowded && !isTopCrowded) {
          // The above space isn't crowded and the under space is crowded.
          dropDownStyle.top = "".concat(parseFloat(dropDownStyle.top) - container.offsetHeight || 0, "px");
        }

        Object.keys(dropDownStyle).forEach(function (key) {
          container.style[key] = dropDownStyle[key];
        });
      }

      if (!_this.focusItem) {
        return;
      }

      scrollIntoView(ReactDOM.findDOMNode(_this.focusItem), container, {
        onlyScrollIfNeeded: true
      });
    });

    _defineProperty(_assertThisInitialized(_this), "getNavigations", function () {
      var _this$props = _this.props,
          prefixCls = _this$props.prefixCls,
          suggestions = _this$props.suggestions;
      var focusedIndex = _this.state.focusedIndex;
      return suggestions.length ? Children.map(suggestions, function (element, index) {
        var focusItem = index === focusedIndex;
        var ref = focusItem ? function (node) {
          _this.focusItem = node;
        } : null;
        var mentionClass = cx("".concat(prefixCls, "-dropdown-item"), {
          focus: focusItem
        });

        if (isValidElement(element)) {
          return cloneElement(element, {
            className: mentionClass,
            onMouseDown: function onMouseDown() {
              return _this.onMentionSelect(element.props.value, element.props.data);
            },
            ref: ref
          });
        }

        return React.createElement(Nav, {
          ref: ref,
          className: mentionClass,
          onMouseDown: function onMouseDown() {
            return _this.onMentionSelect(element);
          }
        }, element);
      }, _assertThisInitialized(_this)) : React.createElement("div", {
        className: "".concat(prefixCls, "-dropdown-notfound ").concat(prefixCls, "-dropdown-item")
      }, _this.props.notFoundContent);
    });

    _this.state = {
      isActive: false,
      focusedIndex: 0,
      container: false
    };
    return _this;
  }

  _createClass(Suggestions, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      this.props.callbacks.onChange = this.onEditorStateChange;
    }
  }, {
    key: "componentWillReceiveProps",
    value: function componentWillReceiveProps(nextProps) {
      if (nextProps.suggestions.length !== this.props.suggestions.length) {
        this.setState({
          focusedIndex: 0
        });
      }
    }
  }, {
    key: "onMentionSelect",
    value: function onMentionSelect(mention, data) {
      var editorState = this.props.callbacks.getEditorState();
      var _this$props2 = this.props,
          store = _this$props2.store,
          onSelect = _this$props2.onSelect;
      var trigger = store.getTrigger(this.activeOffsetKey);

      if (onSelect) {
        onSelect(mention, data || mention);
      }

      if (this.props.noRedup) {
        var mentions = getMentions(editorState.getCurrentContent(), trigger);

        if (mentions.indexOf("".concat(trigger).concat(mention)) !== -1) {
          // eslint-disable-next-line
          console.warn('you have specified `noRedup` props but have duplicated mentions.');
          this.closeDropDown();
          this.props.callbacks.setEditorState(clearMention(editorState));
          return;
        }
      }

      this.props.callbacks.setEditorState(insertMention(editorState, "".concat(trigger).concat(mention), data, this.props.mode), true);
      this.closeDropDown();
    }
  }, {
    key: "getPositionStyle",
    value: function getPositionStyle(isActive, position) {
      if (this.props.getSuggestionStyle) {
        return this.props.getSuggestionStyle(isActive, position);
      }

      var container = this.props.getSuggestionContainer ? this.state.container : document.body;
      var offset = getOffset(container);
      return position ? _objectSpread({
        position: 'absolute',
        left: "".concat(position.left - offset.left, "px"),
        top: "".concat(position.top - offset.top, "px")
      }, this.props.style) : {};
    }
  }, {
    key: "openDropDown",
    value: function openDropDown() {
      this.props.callbacks.onUpArrow = this.onUpArrow;
      this.props.callbacks.handleReturn = this.handleReturn;
      this.props.callbacks.handleKeyBinding = this.handleKeyBinding;
      this.props.callbacks.onDownArrow = this.onDownArrow;
      this.props.callbacks.onBlur = this.onBlur;
      this.setState({
        active: true,
        container: this.state.container || this.getContainer()
      });
    }
  }, {
    key: "closeDropDown",
    value: function closeDropDown() {
      this.props.callbacks.onUpArrow = null;
      this.props.callbacks.handleReturn = null;
      this.props.callbacks.handleKeyBinding = null;
      this.props.callbacks.onDownArrow = null;
      this.props.callbacks.onBlur = null;
      this.setState({
        active: false
      });
    }
  }, {
    key: "render",
    value: function render() {
      var _objectSpread2,
          _this2 = this;

      var _this$props3 = this.props,
          prefixCls = _this$props3.prefixCls,
          className = _this$props3.className,
          placement = _this$props3.placement;
      var _this$state = this.state,
          container = _this$state.container,
          active = _this$state.active;
      var cls = cx(_objectSpread((_objectSpread2 = {}, _defineProperty(_objectSpread2, "".concat(prefixCls, "-dropdown"), true), _defineProperty(_objectSpread2, "".concat(prefixCls, "-dropdown-placement-").concat(placement), true), _objectSpread2), className));
      var transitionName = placement === 'top' ? 'slide-down' : 'slide-up';
      var navigations = this.getNavigations();
      return container ? React.createElement(SuggetionWrapper, {
        renderReady: this.renderReady,
        container: container
      }, React.createElement(Animate, {
        transitionName: transitionName
      }, active ? React.createElement("div", {
        className: cls,
        ref: function ref(node) {
          _this2.dropdownContainer = node;
        }
      }, navigations) : null)) : null;
    }
  }]);

  return Suggestions;
}(Component);

_defineProperty(Suggestions, "propTypes", {
  callbacks: PropTypes.object,
  suggestions: PropTypes.array,
  store: PropTypes.object,
  onSearchChange: PropTypes.func,
  prefixCls: PropTypes.string,
  mode: PropTypes.string,
  style: PropTypes.object,
  onSelect: PropTypes.func,
  getSuggestionContainer: PropTypes.func,
  notFoundContent: PropTypes.any,
  getSuggestionStyle: PropTypes.func,
  className: PropTypes.string,
  noRedup: PropTypes.bool,
  placement: PropTypes.string
});

export { Suggestions as default };
//# sourceMappingURL=Suggestions.react.js.map