MDL-78251 editor_tiny: Update TinyMCE to 6.6.2

[moodle.git] / lib / editor / tiny / js / tinymce / plugins / lists / plugin.js

/**
 * TinyMCE version 6.6.2 (2023-08-09)
 */

(function () {
    'use strict';

    var global$7 = tinymce.util.Tools.resolve('tinymce.PluginManager');

    const hasProto = (v, constructor, predicate) => {
      var _a;
      if (predicate(v, constructor.prototype)) {
        return true;
      } else {
        return ((_a = v.constructor) === null || _a === void 0 ? void 0 : _a.name) === constructor.name;
      }
    };
    const typeOf = x => {
      const t = typeof x;
      if (x === null) {
        return 'null';
      } else if (t === 'object' && Array.isArray(x)) {
        return 'array';
      } else if (t === 'object' && hasProto(x, String, (o, proto) => proto.isPrototypeOf(o))) {
        return 'string';
      } else {
        return t;
      }
    };
    const isType$1 = type => value => typeOf(value) === type;
    const isSimpleType = type => value => typeof value === type;
    const isString = isType$1('string');
    const isObject = isType$1('object');
    const isArray = isType$1('array');
    const isBoolean = isSimpleType('boolean');
    const isNullable = a => a === null || a === undefined;
    const isNonNullable = a => !isNullable(a);
    const isFunction = isSimpleType('function');
    const isNumber = isSimpleType('number');

    const noop = () => {
    };
    const constant = value => {
      return () => {
        return value;
      };
    };
    const tripleEquals = (a, b) => {
      return a === b;
    };
    const not = f => t => !f(t);
    const never = constant(false);

    class Optional {
      constructor(tag, value) {
        this.tag = tag;
        this.value = value;
      }
      static some(value) {
        return new Optional(true, value);
      }
      static none() {
        return Optional.singletonNone;
      }
      fold(onNone, onSome) {
        if (this.tag) {
          return onSome(this.value);
        } else {
          return onNone();
        }
      }
      isSome() {
        return this.tag;
      }
      isNone() {
        return !this.tag;
      }
      map(mapper) {
        if (this.tag) {
          return Optional.some(mapper(this.value));
        } else {
          return Optional.none();
        }
      }
      bind(binder) {
        if (this.tag) {
          return binder(this.value);
        } else {
          return Optional.none();
        }
      }
      exists(predicate) {
        return this.tag && predicate(this.value);
      }
      forall(predicate) {
        return !this.tag || predicate(this.value);
      }
      filter(predicate) {
        if (!this.tag || predicate(this.value)) {
          return this;
        } else {
          return Optional.none();
        }
      }
      getOr(replacement) {
        return this.tag ? this.value : replacement;
      }
      or(replacement) {
        return this.tag ? this : replacement;
      }
      getOrThunk(thunk) {
        return this.tag ? this.value : thunk();
      }
      orThunk(thunk) {
        return this.tag ? this : thunk();
      }
      getOrDie(message) {
        if (!this.tag) {
          throw new Error(message !== null && message !== void 0 ? message : 'Called getOrDie on None');
        } else {
          return this.value;
        }
      }
      static from(value) {
        return isNonNullable(value) ? Optional.some(value) : Optional.none();
      }
      getOrNull() {
        return this.tag ? this.value : null;
      }
      getOrUndefined() {
        return this.value;
      }
      each(worker) {
        if (this.tag) {
          worker(this.value);
        }
      }
      toArray() {
        return this.tag ? [this.value] : [];
      }
      toString() {
        return this.tag ? `some(${ this.value })` : 'none()';
      }
    }
    Optional.singletonNone = new Optional(false);

    const nativeSlice = Array.prototype.slice;
    const nativeIndexOf = Array.prototype.indexOf;
    const nativePush = Array.prototype.push;
    const rawIndexOf = (ts, t) => nativeIndexOf.call(ts, t);
    const contains$1 = (xs, x) => rawIndexOf(xs, x) > -1;
    const exists = (xs, pred) => {
      for (let i = 0, len = xs.length; i < len; i++) {
        const x = xs[i];
        if (pred(x, i)) {
          return true;
        }
      }
      return false;
    };
    const map = (xs, f) => {
      const len = xs.length;
      const r = new Array(len);
      for (let i = 0; i < len; i++) {
        const x = xs[i];
        r[i] = f(x, i);
      }
      return r;
    };
    const each$1 = (xs, f) => {
      for (let i = 0, len = xs.length; i < len; i++) {
        const x = xs[i];
        f(x, i);
      }
    };
    const filter$1 = (xs, pred) => {
      const r = [];
      for (let i = 0, len = xs.length; i < len; i++) {
        const x = xs[i];
        if (pred(x, i)) {
          r.push(x);
        }
      }
      return r;
    };
    const groupBy = (xs, f) => {
      if (xs.length === 0) {
        return [];
      } else {
        let wasType = f(xs[0]);
        const r = [];
        let group = [];
        for (let i = 0, len = xs.length; i < len; i++) {
          const x = xs[i];
          const type = f(x);
          if (type !== wasType) {
            r.push(group);
            group = [];
          }
          wasType = type;
          group.push(x);
        }
        if (group.length !== 0) {
          r.push(group);
        }
        return r;
      }
    };
    const foldl = (xs, f, acc) => {
      each$1(xs, (x, i) => {
        acc = f(acc, x, i);
      });
      return acc;
    };
    const findUntil = (xs, pred, until) => {
      for (let i = 0, len = xs.length; i < len; i++) {
        const x = xs[i];
        if (pred(x, i)) {
          return Optional.some(x);
        } else if (until(x, i)) {
          break;
        }
      }
      return Optional.none();
    };
    const find = (xs, pred) => {
      return findUntil(xs, pred, never);
    };
    const flatten = xs => {
      const r = [];
      for (let i = 0, len = xs.length; i < len; ++i) {
        if (!isArray(xs[i])) {
          throw new Error('Arr.flatten item ' + i + ' was not an array, input: ' + xs);
        }
        nativePush.apply(r, xs[i]);
      }
      return r;
    };
    const bind = (xs, f) => flatten(map(xs, f));
    const reverse = xs => {
      const r = nativeSlice.call(xs, 0);
      r.reverse();
      return r;
    };
    const get$1 = (xs, i) => i >= 0 && i < xs.length ? Optional.some(xs[i]) : Optional.none();
    const head = xs => get$1(xs, 0);
    const last = xs => get$1(xs, xs.length - 1);
    const unique = (xs, comparator) => {
      const r = [];
      const isDuplicated = isFunction(comparator) ? x => exists(r, i => comparator(i, x)) : x => contains$1(r, x);
      for (let i = 0, len = xs.length; i < len; i++) {
        const x = xs[i];
        if (!isDuplicated(x)) {
          r.push(x);
        }
      }
      return r;
    };

    const is$2 = (lhs, rhs, comparator = tripleEquals) => lhs.exists(left => comparator(left, rhs));
    const equals = (lhs, rhs, comparator = tripleEquals) => lift2(lhs, rhs, comparator).getOr(lhs.isNone() && rhs.isNone());
    const lift2 = (oa, ob, f) => oa.isSome() && ob.isSome() ? Optional.some(f(oa.getOrDie(), ob.getOrDie())) : Optional.none();

    const ELEMENT = 1;

    const fromHtml = (html, scope) => {
      const doc = scope || document;
      const div = doc.createElement('div');
      div.innerHTML = html;
      if (!div.hasChildNodes() || div.childNodes.length > 1) {
        const message = 'HTML does not have a single root node';
        console.error(message, html);
        throw new Error(message);
      }
      return fromDom$1(div.childNodes[0]);
    };
    const fromTag = (tag, scope) => {
      const doc = scope || document;
      const node = doc.createElement(tag);
      return fromDom$1(node);
    };
    const fromText = (text, scope) => {
      const doc = scope || document;
      const node = doc.createTextNode(text);
      return fromDom$1(node);
    };
    const fromDom$1 = node => {
      if (node === null || node === undefined) {
        throw new Error('Node cannot be null or undefined');
      }
      return { dom: node };
    };
    const fromPoint = (docElm, x, y) => Optional.from(docElm.dom.elementFromPoint(x, y)).map(fromDom$1);
    const SugarElement = {
      fromHtml,
      fromTag,
      fromText,
      fromDom: fromDom$1,
      fromPoint
    };

    const is$1 = (element, selector) => {
      const dom = element.dom;
      if (dom.nodeType !== ELEMENT) {
        return false;
      } else {
        const elem = dom;
        if (elem.matches !== undefined) {
          return elem.matches(selector);
        } else if (elem.msMatchesSelector !== undefined) {
          return elem.msMatchesSelector(selector);
        } else if (elem.webkitMatchesSelector !== undefined) {
          return elem.webkitMatchesSelector(selector);
        } else if (elem.mozMatchesSelector !== undefined) {
          return elem.mozMatchesSelector(selector);
        } else {
          throw new Error('Browser lacks native selectors');
        }
      }
    };

    const eq = (e1, e2) => e1.dom === e2.dom;
    const contains = (e1, e2) => {
      const d1 = e1.dom;
      const d2 = e2.dom;
      return d1 === d2 ? false : d1.contains(d2);
    };
    const is = is$1;

    var ClosestOrAncestor = (is, ancestor, scope, a, isRoot) => {
      if (is(scope, a)) {
        return Optional.some(scope);
      } else if (isFunction(isRoot) && isRoot(scope)) {
        return Optional.none();
      } else {
        return ancestor(scope, a, isRoot);
      }
    };

    typeof window !== 'undefined' ? window : Function('return this;')();

    const name = element => {
      const r = element.dom.nodeName;
      return r.toLowerCase();
    };
    const type = element => element.dom.nodeType;
    const isType = t => element => type(element) === t;
    const isElement$1 = isType(ELEMENT);
    const isTag = tag => e => isElement$1(e) && name(e) === tag;

    const parent = element => Optional.from(element.dom.parentNode).map(SugarElement.fromDom);
    const parentElement = element => Optional.from(element.dom.parentElement).map(SugarElement.fromDom);
    const nextSibling = element => Optional.from(element.dom.nextSibling).map(SugarElement.fromDom);
    const children = element => map(element.dom.childNodes, SugarElement.fromDom);
    const child = (element, index) => {
      const cs = element.dom.childNodes;
      return Optional.from(cs[index]).map(SugarElement.fromDom);
    };
    const firstChild = element => child(element, 0);
    const lastChild = element => child(element, element.dom.childNodes.length - 1);

    const ancestor = (scope, predicate, isRoot) => {
      let element = scope.dom;
      const stop = isFunction(isRoot) ? isRoot : never;
      while (element.parentNode) {
        element = element.parentNode;
        const el = SugarElement.fromDom(element);
        if (predicate(el)) {
          return Optional.some(el);
        } else if (stop(el)) {
          break;
        }
      }
      return Optional.none();
    };
    const closest = (scope, predicate, isRoot) => {
      const is = (s, test) => test(s);
      return ClosestOrAncestor(is, ancestor, scope, predicate, isRoot);
    };

    const before$1 = (marker, element) => {
      const parent$1 = parent(marker);
      parent$1.each(v => {
        v.dom.insertBefore(element.dom, marker.dom);
      });
    };
    const after = (marker, element) => {
      const sibling = nextSibling(marker);
      sibling.fold(() => {
        const parent$1 = parent(marker);
        parent$1.each(v => {
          append$1(v, element);
        });
      }, v => {
        before$1(v, element);
      });
    };
    const append$1 = (parent, element) => {
      parent.dom.appendChild(element.dom);
    };

    const before = (marker, elements) => {
      each$1(elements, x => {
        before$1(marker, x);
      });
    };
    const append = (parent, elements) => {
      each$1(elements, x => {
        append$1(parent, x);
      });
    };

    const empty = element => {
      element.dom.textContent = '';
      each$1(children(element), rogue => {
        remove(rogue);
      });
    };
    const remove = element => {
      const dom = element.dom;
      if (dom.parentNode !== null) {
        dom.parentNode.removeChild(dom);
      }
    };

    var global$6 = tinymce.util.Tools.resolve('tinymce.dom.RangeUtils');

    var global$5 = tinymce.util.Tools.resolve('tinymce.dom.TreeWalker');

    var global$4 = tinymce.util.Tools.resolve('tinymce.util.VK');

    const fromDom = nodes => map(nodes, SugarElement.fromDom);

    const keys = Object.keys;
    const each = (obj, f) => {
      const props = keys(obj);
      for (let k = 0, len = props.length; k < len; k++) {
        const i = props[k];
        const x = obj[i];
        f(x, i);
      }
    };
    const objAcc = r => (x, i) => {
      r[i] = x;
    };
    const internalFilter = (obj, pred, onTrue, onFalse) => {
      each(obj, (x, i) => {
        (pred(x, i) ? onTrue : onFalse)(x, i);
      });
    };
    const filter = (obj, pred) => {
      const t = {};
      internalFilter(obj, pred, objAcc(t), noop);
      return t;
    };

    const rawSet = (dom, key, value) => {
      if (isString(value) || isBoolean(value) || isNumber(value)) {
        dom.setAttribute(key, value + '');
      } else {
        console.error('Invalid call to Attribute.set. Key ', key, ':: Value ', value, ':: Element ', dom);
        throw new Error('Attribute value was not simple');
      }
    };
    const setAll = (element, attrs) => {
      const dom = element.dom;
      each(attrs, (v, k) => {
        rawSet(dom, k, v);
      });
    };
    const clone$1 = element => foldl(element.dom.attributes, (acc, attr) => {
      acc[attr.name] = attr.value;
      return acc;
    }, {});

    const clone = (original, isDeep) => SugarElement.fromDom(original.dom.cloneNode(isDeep));
    const deep = original => clone(original, true);
    const shallowAs = (original, tag) => {
      const nu = SugarElement.fromTag(tag);
      const attributes = clone$1(original);
      setAll(nu, attributes);
      return nu;
    };
    const mutate = (original, tag) => {
      const nu = shallowAs(original, tag);
      after(original, nu);
      const children$1 = children(original);
      append(nu, children$1);
      remove(original);
      return nu;
    };

    var global$3 = tinymce.util.Tools.resolve('tinymce.dom.DOMUtils');

    var global$2 = tinymce.util.Tools.resolve('tinymce.util.Tools');

    const matchNodeName = name => node => isNonNullable(node) && node.nodeName.toLowerCase() === name;
    const matchNodeNames = regex => node => isNonNullable(node) && regex.test(node.nodeName);
    const isTextNode$1 = node => isNonNullable(node) && node.nodeType === 3;
    const isElement = node => isNonNullable(node) && node.nodeType === 1;
    const isListNode = matchNodeNames(/^(OL|UL|DL)$/);
    const isOlUlNode = matchNodeNames(/^(OL|UL)$/);
    const isOlNode = matchNodeName('ol');
    const isListItemNode = matchNodeNames(/^(LI|DT|DD)$/);
    const isDlItemNode = matchNodeNames(/^(DT|DD)$/);
    const isTableCellNode = matchNodeNames(/^(TH|TD)$/);
    const isBr = matchNodeName('br');
    const isFirstChild = node => {
      var _a;
      return ((_a = node.parentNode) === null || _a === void 0 ? void 0 : _a.firstChild) === node;
    };
    const isTextBlock = (editor, node) => isNonNullable(node) && node.nodeName in editor.schema.getTextBlockElements();
    const isBlock = (node, blockElements) => isNonNullable(node) && node.nodeName in blockElements;
    const isVoid = (editor, node) => isNonNullable(node) && node.nodeName in editor.schema.getVoidElements();
    const isBogusBr = (dom, node) => {
      if (!isBr(node)) {
        return false;
      }
      return dom.isBlock(node.nextSibling) && !isBr(node.previousSibling);
    };
    const isEmpty$2 = (dom, elm, keepBookmarks) => {
      const empty = dom.isEmpty(elm);
      if (keepBookmarks && dom.select('span[data-mce-type=bookmark]', elm).length > 0) {
        return false;
      }
      return empty;
    };
    const isChildOfBody = (dom, elm) => dom.isChildOf(elm, dom.getRoot());

    const option = name => editor => editor.options.get(name);
    const register$3 = editor => {
      const registerOption = editor.options.register;
      registerOption('lists_indent_on_tab', {
        processor: 'boolean',
        default: true
      });
    };
    const shouldIndentOnTab = option('lists_indent_on_tab');
    const getForcedRootBlock = option('forced_root_block');
    const getForcedRootBlockAttrs = option('forced_root_block_attrs');

    const createTextBlock = (editor, contentNode) => {
      const dom = editor.dom;
      const blockElements = editor.schema.getBlockElements();
      const fragment = dom.createFragment();
      const blockName = getForcedRootBlock(editor);
      const blockAttrs = getForcedRootBlockAttrs(editor);
      let node;
      let textBlock;
      let hasContentNode = false;
      textBlock = dom.create(blockName, blockAttrs);
      if (!isBlock(contentNode.firstChild, blockElements)) {
        fragment.appendChild(textBlock);
      }
      while (node = contentNode.firstChild) {
        const nodeName = node.nodeName;
        if (!hasContentNode && (nodeName !== 'SPAN' || node.getAttribute('data-mce-type') !== 'bookmark')) {
          hasContentNode = true;
        }
        if (isBlock(node, blockElements)) {
          fragment.appendChild(node);
          textBlock = null;
        } else {
          if (!textBlock) {
            textBlock = dom.create(blockName, blockAttrs);
            fragment.appendChild(textBlock);
          }
          textBlock.appendChild(node);
        }
      }
      if (!hasContentNode && textBlock) {
        textBlock.appendChild(dom.create('br', { 'data-mce-bogus': '1' }));
      }
      return fragment;
    };

    const DOM$2 = global$3.DOM;
    const splitList = (editor, list, li) => {
      const removeAndKeepBookmarks = targetNode => {
        const parent = targetNode.parentNode;
        if (parent) {
          global$2.each(bookmarks, node => {
            parent.insertBefore(node, li.parentNode);
          });
        }
        DOM$2.remove(targetNode);
      };
      const bookmarks = DOM$2.select('span[data-mce-type="bookmark"]', list);
      const newBlock = createTextBlock(editor, li);
      const tmpRng = DOM$2.createRng();
      tmpRng.setStartAfter(li);
      tmpRng.setEndAfter(list);
      const fragment = tmpRng.extractContents();
      for (let node = fragment.firstChild; node; node = node.firstChild) {
        if (node.nodeName === 'LI' && editor.dom.isEmpty(node)) {
          DOM$2.remove(node);
          break;
        }
      }
      if (!editor.dom.isEmpty(fragment)) {
        DOM$2.insertAfter(fragment, list);
      }
      DOM$2.insertAfter(newBlock, list);
      const parent = li.parentElement;
      if (parent && isEmpty$2(editor.dom, parent)) {
        removeAndKeepBookmarks(parent);
      }
      DOM$2.remove(li);
      if (isEmpty$2(editor.dom, list)) {
        DOM$2.remove(list);
      }
    };

    const isDescriptionDetail = isTag('dd');
    const isDescriptionTerm = isTag('dt');
    const outdentDlItem = (editor, item) => {
      if (isDescriptionDetail(item)) {
        mutate(item, 'dt');
      } else if (isDescriptionTerm(item)) {
        parentElement(item).each(dl => splitList(editor, dl.dom, item.dom));
      }
    };
    const indentDlItem = item => {
      if (isDescriptionTerm(item)) {
        mutate(item, 'dd');
      }
    };
    const dlIndentation = (editor, indentation, dlItems) => {
      if (indentation === 'Indent') {
        each$1(dlItems, indentDlItem);
      } else {
        each$1(dlItems, item => outdentDlItem(editor, item));
      }
    };

    const getNormalizedPoint = (container, offset) => {
      if (isTextNode$1(container)) {
        return {
          container,
          offset
        };
      }
      const node = global$6.getNode(container, offset);
      if (isTextNode$1(node)) {
        return {
          container: node,
          offset: offset >= container.childNodes.length ? node.data.length : 0
        };
      } else if (node.previousSibling && isTextNode$1(node.previousSibling)) {
        return {
          container: node.previousSibling,
          offset: node.previousSibling.data.length
        };
      } else if (node.nextSibling && isTextNode$1(node.nextSibling)) {
        return {
          container: node.nextSibling,
          offset: 0
        };
      }
      return {
        container,
        offset
      };
    };
    const normalizeRange = rng => {
      const outRng = rng.cloneRange();
      const rangeStart = getNormalizedPoint(rng.startContainer, rng.startOffset);
      outRng.setStart(rangeStart.container, rangeStart.offset);
      const rangeEnd = getNormalizedPoint(rng.endContainer, rng.endOffset);
      outRng.setEnd(rangeEnd.container, rangeEnd.offset);
      return outRng;
    };

    const listNames = [
      'OL',
      'UL',
      'DL'
    ];
    const listSelector = listNames.join(',');
    const getParentList = (editor, node) => {
      const selectionStart = node || editor.selection.getStart(true);
      return editor.dom.getParent(selectionStart, listSelector, getClosestListHost(editor, selectionStart));
    };
    const isParentListSelected = (parentList, selectedBlocks) => isNonNullable(parentList) && selectedBlocks.length === 1 && selectedBlocks[0] === parentList;
    const findSubLists = parentList => filter$1(parentList.querySelectorAll(listSelector), isListNode);
    const getSelectedSubLists = editor => {
      const parentList = getParentList(editor);
      const selectedBlocks = editor.selection.getSelectedBlocks();
      if (isParentListSelected(parentList, selectedBlocks)) {
        return findSubLists(parentList);
      } else {
        return filter$1(selectedBlocks, elm => {
          return isListNode(elm) && parentList !== elm;
        });
      }
    };
    const findParentListItemsNodes = (editor, elms) => {
      const listItemsElms = global$2.map(elms, elm => {
        const parentLi = editor.dom.getParent(elm, 'li,dd,dt', getClosestListHost(editor, elm));
        return parentLi ? parentLi : elm;
      });
      return unique(listItemsElms);
    };
    const getSelectedListItems = editor => {
      const selectedBlocks = editor.selection.getSelectedBlocks();
      return filter$1(findParentListItemsNodes(editor, selectedBlocks), isListItemNode);
    };
    const getSelectedDlItems = editor => filter$1(getSelectedListItems(editor), isDlItemNode);
    const getClosestEditingHost = (editor, elm) => {
      const parentTableCell = editor.dom.getParents(elm, 'TD,TH');
      return parentTableCell.length > 0 ? parentTableCell[0] : editor.getBody();
    };
    const isListHost = (schema, node) => !isListNode(node) && !isListItemNode(node) && exists(listNames, listName => schema.isValidChild(node.nodeName, listName));
    const getClosestListHost = (editor, elm) => {
      const parentBlocks = editor.dom.getParents(elm, editor.dom.isBlock);
      const parentBlock = find(parentBlocks, elm => isListHost(editor.schema, elm));
      return parentBlock.getOr(editor.getBody());
    };
    const findLastParentListNode = (editor, elm) => {
      const parentLists = editor.dom.getParents(elm, 'ol,ul', getClosestListHost(editor, elm));
      return last(parentLists);
    };
    const getSelectedLists = editor => {
      const firstList = findLastParentListNode(editor, editor.selection.getStart());
      const subsequentLists = filter$1(editor.selection.getSelectedBlocks(), isOlUlNode);
      return firstList.toArray().concat(subsequentLists);
    };
    const getSelectedListRoots = editor => {
      const selectedLists = getSelectedLists(editor);
      return getUniqueListRoots(editor, selectedLists);
    };
    const getUniqueListRoots = (editor, lists) => {
      const listRoots = map(lists, list => findLastParentListNode(editor, list).getOr(list));
      return unique(listRoots);
    };

    const isCustomList = list => /\btox\-/.test(list.className);
    const inList = (parents, listName) => findUntil(parents, isListNode, isTableCellNode).exists(list => list.nodeName === listName && !isCustomList(list));
    const isWithinNonEditable = (editor, element) => element !== null && !editor.dom.isEditable(element);
    const selectionIsWithinNonEditableList = editor => {
      const parentList = getParentList(editor);
      return isWithinNonEditable(editor, parentList);
    };
    const isWithinNonEditableList = (editor, element) => {
      const parentList = editor.dom.getParent(element, 'ol,ul,dl');
      return isWithinNonEditable(editor, parentList);
    };
    const setNodeChangeHandler = (editor, nodeChangeHandler) => {
      const initialNode = editor.selection.getNode();
      nodeChangeHandler({
        parents: editor.dom.getParents(initialNode),
        element: initialNode
      });
      editor.on('NodeChange', nodeChangeHandler);
      return () => editor.off('NodeChange', nodeChangeHandler);
    };

    const fromElements = (elements, scope) => {
      const doc = scope || document;
      const fragment = doc.createDocumentFragment();
      each$1(elements, element => {
        fragment.appendChild(element.dom);
      });
      return SugarElement.fromDom(fragment);
    };

    const fireListEvent = (editor, action, element) => editor.dispatch('ListMutation', {
      action,
      element
    });

    const blank = r => s => s.replace(r, '');
    const trim = blank(/^\s+|\s+$/g);
    const isNotEmpty = s => s.length > 0;
    const isEmpty$1 = s => !isNotEmpty(s);

    const isSupported = dom => dom.style !== undefined && isFunction(dom.style.getPropertyValue);

    const internalSet = (dom, property, value) => {
      if (!isString(value)) {
        console.error('Invalid call to CSS.set. Property ', property, ':: Value ', value, ':: Element ', dom);
        throw new Error('CSS value must be a string: ' + value);
      }
      if (isSupported(dom)) {
        dom.style.setProperty(property, value);
      }
    };
    const set = (element, property, value) => {
      const dom = element.dom;
      internalSet(dom, property, value);
    };

    const joinSegment = (parent, child) => {
      append$1(parent.item, child.list);
    };
    const joinSegments = segments => {
      for (let i = 1; i < segments.length; i++) {
        joinSegment(segments[i - 1], segments[i]);
      }
    };
    const appendSegments = (head$1, tail) => {
      lift2(last(head$1), head(tail), joinSegment);
    };
    const createSegment = (scope, listType) => {
      const segment = {
        list: SugarElement.fromTag(listType, scope),
        item: SugarElement.fromTag('li', scope)
      };
      append$1(segment.list, segment.item);
      return segment;
    };
    const createSegments = (scope, entry, size) => {
      const segments = [];
      for (let i = 0; i < size; i++) {
        segments.push(createSegment(scope, entry.listType));
      }
      return segments;
    };
    const populateSegments = (segments, entry) => {
      for (let i = 0; i < segments.length - 1; i++) {
        set(segments[i].item, 'list-style-type', 'none');
      }
      last(segments).each(segment => {
        setAll(segment.list, entry.listAttributes);
        setAll(segment.item, entry.itemAttributes);
        append(segment.item, entry.content);
      });
    };
    const normalizeSegment = (segment, entry) => {
      if (name(segment.list) !== entry.listType) {
        segment.list = mutate(segment.list, entry.listType);
      }
      setAll(segment.list, entry.listAttributes);
    };
    const createItem = (scope, attr, content) => {
      const item = SugarElement.fromTag('li', scope);
      setAll(item, attr);
      append(item, content);
      return item;
    };
    const appendItem = (segment, item) => {
      append$1(segment.list, item);
      segment.item = item;
    };
    const writeShallow = (scope, cast, entry) => {
      const newCast = cast.slice(0, entry.depth);
      last(newCast).each(segment => {
        const item = createItem(scope, entry.itemAttributes, entry.content);
        appendItem(segment, item);
        normalizeSegment(segment, entry);
      });
      return newCast;
    };
    const writeDeep = (scope, cast, entry) => {
      const segments = createSegments(scope, entry, entry.depth - cast.length);
      joinSegments(segments);
      populateSegments(segments, entry);
      appendSegments(cast, segments);
      return cast.concat(segments);
    };
    const composeList = (scope, entries) => {
      const cast = foldl(entries, (cast, entry) => {
        return entry.depth > cast.length ? writeDeep(scope, cast, entry) : writeShallow(scope, cast, entry);
      }, []);
      return head(cast).map(segment => segment.list);
    };

    const isList = el => is(el, 'OL,UL');
    const hasFirstChildList = el => firstChild(el).exists(isList);
    const hasLastChildList = el => lastChild(el).exists(isList);

    const isIndented = entry => entry.depth > 0;
    const isSelected = entry => entry.isSelected;
    const cloneItemContent = li => {
      const children$1 = children(li);
      const content = hasLastChildList(li) ? children$1.slice(0, -1) : children$1;
      return map(content, deep);
    };
    const createEntry = (li, depth, isSelected) => parent(li).filter(isElement$1).map(list => ({
      depth,
      dirty: false,
      isSelected,
      content: cloneItemContent(li),
      itemAttributes: clone$1(li),
      listAttributes: clone$1(list),
      listType: name(list)
    }));

    const indentEntry = (indentation, entry) => {
      switch (indentation) {
      case 'Indent':
        entry.depth++;
        break;
      case 'Outdent':
        entry.depth--;
        break;
      case 'Flatten':
        entry.depth = 0;
      }
      entry.dirty = true;
    };

    const cloneListProperties = (target, source) => {
      target.listType = source.listType;
      target.listAttributes = { ...source.listAttributes };
    };
    const cleanListProperties = entry => {
      entry.listAttributes = filter(entry.listAttributes, (_value, key) => key !== 'start');
    };
    const closestSiblingEntry = (entries, start) => {
      const depth = entries[start].depth;
      const matches = entry => entry.depth === depth && !entry.dirty;
      const until = entry => entry.depth < depth;
      return findUntil(reverse(entries.slice(0, start)), matches, until).orThunk(() => findUntil(entries.slice(start + 1), matches, until));
    };
    const normalizeEntries = entries => {
      each$1(entries, (entry, i) => {
        closestSiblingEntry(entries, i).fold(() => {
          if (entry.dirty) {
            cleanListProperties(entry);
          }
        }, matchingEntry => cloneListProperties(entry, matchingEntry));
      });
      return entries;
    };

    const Cell = initial => {
      let value = initial;
      const get = () => {
        return value;
      };
      const set = v => {
        value = v;
      };
      return {
        get,
        set
      };
    };

    const parseItem = (depth, itemSelection, selectionState, item) => firstChild(item).filter(isList).fold(() => {
      itemSelection.each(selection => {
        if (eq(selection.start, item)) {
          selectionState.set(true);
        }
      });
      const currentItemEntry = createEntry(item, depth, selectionState.get());
      itemSelection.each(selection => {
        if (eq(selection.end, item)) {
          selectionState.set(false);
        }
      });
      const childListEntries = lastChild(item).filter(isList).map(list => parseList(depth, itemSelection, selectionState, list)).getOr([]);
      return currentItemEntry.toArray().concat(childListEntries);
    }, list => parseList(depth, itemSelection, selectionState, list));
    const parseList = (depth, itemSelection, selectionState, list) => bind(children(list), element => {
      const parser = isList(element) ? parseList : parseItem;
      const newDepth = depth + 1;
      return parser(newDepth, itemSelection, selectionState, element);
    });
    const parseLists = (lists, itemSelection) => {
      const selectionState = Cell(false);
      const initialDepth = 0;
      return map(lists, list => ({
        sourceList: list,
        entries: parseList(initialDepth, itemSelection, selectionState, list)
      }));
    };

    const outdentedComposer = (editor, entries) => {
      const normalizedEntries = normalizeEntries(entries);
      return map(normalizedEntries, entry => {
        const content = fromElements(entry.content);
        return SugarElement.fromDom(createTextBlock(editor, content.dom));
      });
    };
    const indentedComposer = (editor, entries) => {
      const normalizedEntries = normalizeEntries(entries);
      return composeList(editor.contentDocument, normalizedEntries).toArray();
    };
    const composeEntries = (editor, entries) => bind(groupBy(entries, isIndented), entries => {
      const groupIsIndented = head(entries).exists(isIndented);
      return groupIsIndented ? indentedComposer(editor, entries) : outdentedComposer(editor, entries);
    });
    const indentSelectedEntries = (entries, indentation) => {
      each$1(filter$1(entries, isSelected), entry => indentEntry(indentation, entry));
    };
    const getItemSelection = editor => {
      const selectedListItems = map(getSelectedListItems(editor), SugarElement.fromDom);
      return lift2(find(selectedListItems, not(hasFirstChildList)), find(reverse(selectedListItems), not(hasFirstChildList)), (start, end) => ({
        start,
        end
      }));
    };
    const listIndentation = (editor, lists, indentation) => {
      const entrySets = parseLists(lists, getItemSelection(editor));
      each$1(entrySets, entrySet => {
        indentSelectedEntries(entrySet.entries, indentation);
        const composedLists = composeEntries(editor, entrySet.entries);
        each$1(composedLists, composedList => {
          fireListEvent(editor, indentation === 'Indent' ? 'IndentList' : 'OutdentList', composedList.dom);
        });
        before(entrySet.sourceList, composedLists);
        remove(entrySet.sourceList);
      });
    };

    const selectionIndentation = (editor, indentation) => {
      const lists = fromDom(getSelectedListRoots(editor));
      const dlItems = fromDom(getSelectedDlItems(editor));
      let isHandled = false;
      if (lists.length || dlItems.length) {
        const bookmark = editor.selection.getBookmark();
        listIndentation(editor, lists, indentation);
        dlIndentation(editor, indentation, dlItems);
        editor.selection.moveToBookmark(bookmark);
        editor.selection.setRng(normalizeRange(editor.selection.getRng()));
        editor.nodeChanged();
        isHandled = true;
      }
      return isHandled;
    };
    const handleIndentation = (editor, indentation) => !selectionIsWithinNonEditableList(editor) && selectionIndentation(editor, indentation);
    const indentListSelection = editor => handleIndentation(editor, 'Indent');
    const outdentListSelection = editor => handleIndentation(editor, 'Outdent');
    const flattenListSelection = editor => handleIndentation(editor, 'Flatten');

    const zeroWidth = '\uFEFF';
    const isZwsp = char => char === zeroWidth;

    var global$1 = tinymce.util.Tools.resolve('tinymce.dom.BookmarkManager');

    const DOM$1 = global$3.DOM;
    const createBookmark = rng => {
      const bookmark = {};
      const setupEndPoint = start => {
        let container = rng[start ? 'startContainer' : 'endContainer'];
        let offset = rng[start ? 'startOffset' : 'endOffset'];
        if (isElement(container)) {
          const offsetNode = DOM$1.create('span', { 'data-mce-type': 'bookmark' });
          if (container.hasChildNodes()) {
            offset = Math.min(offset, container.childNodes.length - 1);
            if (start) {
              container.insertBefore(offsetNode, container.childNodes[offset]);
            } else {
              DOM$1.insertAfter(offsetNode, container.childNodes[offset]);
            }
          } else {
            container.appendChild(offsetNode);
          }
          container = offsetNode;
          offset = 0;
        }
        bookmark[start ? 'startContainer' : 'endContainer'] = container;
        bookmark[start ? 'startOffset' : 'endOffset'] = offset;
      };
      setupEndPoint(true);
      if (!rng.collapsed) {
        setupEndPoint();
      }
      return bookmark;
    };
    const resolveBookmark = bookmark => {
      const restoreEndPoint = start => {
        const nodeIndex = container => {
          var _a;
          let node = (_a = container.parentNode) === null || _a === void 0 ? void 0 : _a.firstChild;
          let idx = 0;
          while (node) {
            if (node === container) {
              return idx;
            }
            if (!isElement(node) || node.getAttribute('data-mce-type') !== 'bookmark') {
              idx++;
            }
            node = node.nextSibling;
          }
          return -1;
        };
        let container = bookmark[start ? 'startContainer' : 'endContainer'];
        let offset = bookmark[start ? 'startOffset' : 'endOffset'];
        if (!container) {
          return;
        }
        if (isElement(container) && container.parentNode) {
          const node = container;
          offset = nodeIndex(container);
          container = container.parentNode;
          DOM$1.remove(node);
          if (!container.hasChildNodes() && DOM$1.isBlock(container)) {
            container.appendChild(DOM$1.create('br'));
          }
        }
        bookmark[start ? 'startContainer' : 'endContainer'] = container;
        bookmark[start ? 'startOffset' : 'endOffset'] = offset;
      };
      restoreEndPoint(true);
      restoreEndPoint();
      const rng = DOM$1.createRng();
      rng.setStart(bookmark.startContainer, bookmark.startOffset);
      if (bookmark.endContainer) {
        rng.setEnd(bookmark.endContainer, bookmark.endOffset);
      }
      return normalizeRange(rng);
    };

    const listToggleActionFromListName = listName => {
      switch (listName) {
      case 'UL':
        return 'ToggleUlList';
      case 'OL':
        return 'ToggleOlList';
      case 'DL':
        return 'ToggleDLList';
      }
    };

    const updateListStyle = (dom, el, detail) => {
      const type = detail['list-style-type'] ? detail['list-style-type'] : null;
      dom.setStyle(el, 'list-style-type', type);
    };
    const setAttribs = (elm, attrs) => {
      global$2.each(attrs, (value, key) => {
        elm.setAttribute(key, value);
      });
    };
    const updateListAttrs = (dom, el, detail) => {
      setAttribs(el, detail['list-attributes']);
      global$2.each(dom.select('li', el), li => {
        setAttribs(li, detail['list-item-attributes']);
      });
    };
    const updateListWithDetails = (dom, el, detail) => {
      updateListStyle(dom, el, detail);
      updateListAttrs(dom, el, detail);
    };
    const removeStyles = (dom, element, styles) => {
      global$2.each(styles, style => dom.setStyle(element, style, ''));
    };
    const isInline = (editor, node) => isNonNullable(node) && !isBlock(node, editor.schema.getBlockElements());
    const getEndPointNode = (editor, rng, start, root) => {
      let container = rng[start ? 'startContainer' : 'endContainer'];
      const offset = rng[start ? 'startOffset' : 'endOffset'];
      if (isElement(container)) {
        container = container.childNodes[Math.min(offset, container.childNodes.length - 1)] || container;
      }
      if (!start && isBr(container.nextSibling)) {
        container = container.nextSibling;
      }
      const findBetterContainer = (container, forward) => {
        var _a;
        const walker = new global$5(container, root);
        const dir = forward ? 'next' : 'prev';
        let node;
        while (node = walker[dir]()) {
          if (!(isVoid(editor, node) || isZwsp(node.textContent) || ((_a = node.textContent) === null || _a === void 0 ? void 0 : _a.length) === 0)) {
            return Optional.some(node);
          }
        }
        return Optional.none();
      };
      if (start && isTextNode$1(container)) {
        if (isZwsp(container.textContent)) {
          container = findBetterContainer(container, false).getOr(container);
        } else {
          if (container.parentNode !== null && isInline(editor, container.parentNode)) {
            container = container.parentNode;
          }
          while (container.previousSibling !== null && (isInline(editor, container.previousSibling) || isTextNode$1(container.previousSibling))) {
            container = container.previousSibling;
          }
        }
      }
      if (!start && isTextNode$1(container)) {
        if (isZwsp(container.textContent)) {
          container = findBetterContainer(container, true).getOr(container);
        } else {
          if (container.parentNode !== null && isInline(editor, container.parentNode)) {
            container = container.parentNode;
          }
          while (container.nextSibling !== null && (isInline(editor, container.nextSibling) || isTextNode$1(container.nextSibling))) {
            container = container.nextSibling;
          }
        }
      }
      while (container.parentNode !== root) {
        const parent = container.parentNode;
        if (isTextBlock(editor, container)) {
          return container;
        }
        if (/^(TD|TH)$/.test(parent.nodeName)) {
          return container;
        }
        container = parent;
      }
      return container;
    };
    const getSelectedTextBlocks = (editor, rng, root) => {
      const textBlocks = [];
      const dom = editor.dom;
      const startNode = getEndPointNode(editor, rng, true, root);
      const endNode = getEndPointNode(editor, rng, false, root);
      let block;
      const siblings = [];
      for (let node = startNode; node; node = node.nextSibling) {
        siblings.push(node);
        if (node === endNode) {
          break;
        }
      }
      global$2.each(siblings, node => {
        var _a;
        if (isTextBlock(editor, node)) {
          textBlocks.push(node);
          block = null;
          return;
        }
        if (dom.isBlock(node) || isBr(node)) {
          if (isBr(node)) {
            dom.remove(node);
          }
          block = null;
          return;
        }
        const nextSibling = node.nextSibling;
        if (global$1.isBookmarkNode(node)) {
          if (isListNode(nextSibling) || isTextBlock(editor, nextSibling) || !nextSibling && node.parentNode === root) {
            block = null;
            return;
          }
        }
        if (!block) {
          block = dom.create('p');
          (_a = node.parentNode) === null || _a === void 0 ? void 0 : _a.insertBefore(block, node);
          textBlocks.push(block);
        }
        block.appendChild(node);
      });
      return textBlocks;
    };
    const hasCompatibleStyle = (dom, sib, detail) => {
      const sibStyle = dom.getStyle(sib, 'list-style-type');
      let detailStyle = detail ? detail['list-style-type'] : '';
      detailStyle = detailStyle === null ? '' : detailStyle;
      return sibStyle === detailStyle;
    };
    const applyList = (editor, listName, detail) => {
      const rng = editor.selection.getRng();
      let listItemName = 'LI';
      const root = getClosestListHost(editor, editor.selection.getStart(true));
      const dom = editor.dom;
      if (dom.getContentEditable(editor.selection.getNode()) === 'false') {
        return;
      }
      listName = listName.toUpperCase();
      if (listName === 'DL') {
        listItemName = 'DT';
      }
      const bookmark = createBookmark(rng);
      const selectedTextBlocks = filter$1(getSelectedTextBlocks(editor, rng, root), editor.dom.isEditable);
      global$2.each(selectedTextBlocks, block => {
        let listBlock;
        const sibling = block.previousSibling;
        const parent = block.parentNode;
        if (!isListItemNode(parent)) {
          if (sibling && isListNode(sibling) && sibling.nodeName === listName && hasCompatibleStyle(dom, sibling, detail)) {
            listBlock = sibling;
            block = dom.rename(block, listItemName);
            sibling.appendChild(block);
          } else {
            listBlock = dom.create(listName);
            parent.insertBefore(listBlock, block);
            listBlock.appendChild(block);
            block = dom.rename(block, listItemName);
          }
          removeStyles(dom, block, [
            'margin',
            'margin-right',
            'margin-bottom',
            'margin-left',
            'margin-top',
            'padding',
            'padding-right',
            'padding-bottom',
            'padding-left',
            'padding-top'
          ]);
          updateListWithDetails(dom, listBlock, detail);
          mergeWithAdjacentLists(editor.dom, listBlock);
        }
      });
      editor.selection.setRng(resolveBookmark(bookmark));
    };
    const isValidLists = (list1, list2) => {
      return isListNode(list1) && list1.nodeName === (list2 === null || list2 === void 0 ? void 0 : list2.nodeName);
    };
    const hasSameListStyle = (dom, list1, list2) => {
      const targetStyle = dom.getStyle(list1, 'list-style-type', true);
      const style = dom.getStyle(list2, 'list-style-type', true);
      return targetStyle === style;
    };
    const hasSameClasses = (elm1, elm2) => {
      return elm1.className === elm2.className;
    };
    const shouldMerge = (dom, list1, list2) => {
      return isValidLists(list1, list2) && hasSameListStyle(dom, list1, list2) && hasSameClasses(list1, list2);
    };
    const mergeWithAdjacentLists = (dom, listBlock) => {
      let node;
      let sibling = listBlock.nextSibling;
      if (shouldMerge(dom, listBlock, sibling)) {
        const liSibling = sibling;
        while (node = liSibling.firstChild) {
          listBlock.appendChild(node);
        }
        dom.remove(liSibling);
      }
      sibling = listBlock.previousSibling;
      if (shouldMerge(dom, listBlock, sibling)) {
        const liSibling = sibling;
        while (node = liSibling.lastChild) {
          listBlock.insertBefore(node, listBlock.firstChild);
        }
        dom.remove(liSibling);
      }
    };
    const updateList$1 = (editor, list, listName, detail) => {
      if (list.nodeName !== listName) {
        const newList = editor.dom.rename(list, listName);
        updateListWithDetails(editor.dom, newList, detail);
        fireListEvent(editor, listToggleActionFromListName(listName), newList);
      } else {
        updateListWithDetails(editor.dom, list, detail);
        fireListEvent(editor, listToggleActionFromListName(listName), list);
      }
    };
    const toggleMultipleLists = (editor, parentList, lists, listName, detail) => {
      const parentIsList = isListNode(parentList);
      if (parentIsList && parentList.nodeName === listName && !hasListStyleDetail(detail)) {
        flattenListSelection(editor);
      } else {
        applyList(editor, listName, detail);
        const bookmark = createBookmark(editor.selection.getRng());
        const allLists = parentIsList ? [
          parentList,
          ...lists
        ] : lists;
        global$2.each(allLists, elm => {
          updateList$1(editor, elm, listName, detail);
        });
        editor.selection.setRng(resolveBookmark(bookmark));
      }
    };
    const hasListStyleDetail = detail => {
      return 'list-style-type' in detail;
    };
    const toggleSingleList = (editor, parentList, listName, detail) => {
      if (parentList === editor.getBody()) {
        return;
      }
      if (parentList) {
        if (parentList.nodeName === listName && !hasListStyleDetail(detail) && !isCustomList(parentList)) {
          flattenListSelection(editor);
        } else {
          const bookmark = createBookmark(editor.selection.getRng());
          updateListWithDetails(editor.dom, parentList, detail);
          const newList = editor.dom.rename(parentList, listName);
          mergeWithAdjacentLists(editor.dom, newList);
          editor.selection.setRng(resolveBookmark(bookmark));
          applyList(editor, listName, detail);
          fireListEvent(editor, listToggleActionFromListName(listName), newList);
        }
      } else {
        applyList(editor, listName, detail);
        fireListEvent(editor, listToggleActionFromListName(listName), parentList);
      }
    };
    const toggleList = (editor, listName, _detail) => {
      const parentList = getParentList(editor);
      if (isWithinNonEditableList(editor, parentList)) {
        return;
      }
      const selectedSubLists = getSelectedSubLists(editor);
      const detail = isObject(_detail) ? _detail : {};
      if (selectedSubLists.length > 0) {
        toggleMultipleLists(editor, parentList, selectedSubLists, listName, detail);
      } else {
        toggleSingleList(editor, parentList, listName, detail);
      }
    };

    const DOM = global$3.DOM;
    const normalizeList = (dom, list) => {
      const parentNode = list.parentElement;
      if (parentNode && parentNode.nodeName === 'LI' && parentNode.firstChild === list) {
        const sibling = parentNode.previousSibling;
        if (sibling && sibling.nodeName === 'LI') {
          sibling.appendChild(list);
          if (isEmpty$2(dom, parentNode)) {
            DOM.remove(parentNode);
          }
        } else {
          DOM.setStyle(parentNode, 'listStyleType', 'none');
        }
      }
      if (isListNode(parentNode)) {
        const sibling = parentNode.previousSibling;
        if (sibling && sibling.nodeName === 'LI') {
          sibling.appendChild(list);
        }
      }
    };
    const normalizeLists = (dom, element) => {
      const lists = global$2.grep(dom.select('ol,ul', element));
      global$2.each(lists, list => {
        normalizeList(dom, list);
      });
    };

    const findNextCaretContainer = (editor, rng, isForward, root) => {
      let node = rng.startContainer;
      const offset = rng.startOffset;
      if (isTextNode$1(node) && (isForward ? offset < node.data.length : offset > 0)) {
        return node;
      }
      const nonEmptyBlocks = editor.schema.getNonEmptyElements();
      if (isElement(node)) {
        node = global$6.getNode(node, offset);
      }
      const walker = new global$5(node, root);
      if (isForward) {
        if (isBogusBr(editor.dom, node)) {
          walker.next();
        }
      }
      const walkFn = isForward ? walker.next.bind(walker) : walker.prev2.bind(walker);
      while (node = walkFn()) {
        if (node.nodeName === 'LI' && !node.hasChildNodes()) {
          return node;
        }
        if (nonEmptyBlocks[node.nodeName]) {
          return node;
        }
        if (isTextNode$1(node) && node.data.length > 0) {
          return node;
        }
      }
      return null;
    };
    const hasOnlyOneBlockChild = (dom, elm) => {
      const childNodes = elm.childNodes;
      return childNodes.length === 1 && !isListNode(childNodes[0]) && dom.isBlock(childNodes[0]);
    };
    const unwrapSingleBlockChild = (dom, elm) => {
      if (hasOnlyOneBlockChild(dom, elm)) {
        dom.remove(elm.firstChild, true);
      }
    };
    const moveChildren = (dom, fromElm, toElm) => {
      let node;
      const targetElm = hasOnlyOneBlockChild(dom, toElm) ? toElm.firstChild : toElm;
      unwrapSingleBlockChild(dom, fromElm);
      if (!isEmpty$2(dom, fromElm, true)) {
        while (node = fromElm.firstChild) {
          targetElm.appendChild(node);
        }
      }
    };
    const mergeLiElements = (dom, fromElm, toElm) => {
      let listNode;
      const ul = fromElm.parentNode;
      if (!isChildOfBody(dom, fromElm) || !isChildOfBody(dom, toElm)) {
        return;
      }
      if (isListNode(toElm.lastChild)) {
        listNode = toElm.lastChild;
      }
      if (ul === toElm.lastChild) {
        if (isBr(ul.previousSibling)) {
          dom.remove(ul.previousSibling);
        }
      }
      const node = toElm.lastChild;
      if (node && isBr(node) && fromElm.hasChildNodes()) {
        dom.remove(node);
      }
      if (isEmpty$2(dom, toElm, true)) {
        empty(SugarElement.fromDom(toElm));
      }
      moveChildren(dom, fromElm, toElm);
      if (listNode) {
        toElm.appendChild(listNode);
      }
      const contains$1 = contains(SugarElement.fromDom(toElm), SugarElement.fromDom(fromElm));
      const nestedLists = contains$1 ? dom.getParents(fromElm, isListNode, toElm) : [];
      dom.remove(fromElm);
      each$1(nestedLists, list => {
        if (isEmpty$2(dom, list) && list !== dom.getRoot()) {
          dom.remove(list);
        }
      });
    };
    const mergeIntoEmptyLi = (editor, fromLi, toLi) => {
      empty(SugarElement.fromDom(toLi));
      mergeLiElements(editor.dom, fromLi, toLi);
      editor.selection.setCursorLocation(toLi, 0);
    };
    const mergeForward = (editor, rng, fromLi, toLi) => {
      const dom = editor.dom;
      if (dom.isEmpty(toLi)) {
        mergeIntoEmptyLi(editor, fromLi, toLi);
      } else {
        const bookmark = createBookmark(rng);
        mergeLiElements(dom, fromLi, toLi);
        editor.selection.setRng(resolveBookmark(bookmark));
      }
    };
    const mergeBackward = (editor, rng, fromLi, toLi) => {
      const bookmark = createBookmark(rng);
      mergeLiElements(editor.dom, fromLi, toLi);
      const resolvedBookmark = resolveBookmark(bookmark);
      editor.selection.setRng(resolvedBookmark);
    };
    const backspaceDeleteFromListToListCaret = (editor, isForward) => {
      const dom = editor.dom, selection = editor.selection;
      const selectionStartElm = selection.getStart();
      const root = getClosestEditingHost(editor, selectionStartElm);
      const li = dom.getParent(selection.getStart(), 'LI', root);
      if (li) {
        const ul = li.parentElement;
        if (ul === editor.getBody() && isEmpty$2(dom, ul)) {
          return true;
        }
        const rng = normalizeRange(selection.getRng());
        const otherLi = dom.getParent(findNextCaretContainer(editor, rng, isForward, root), 'LI', root);
        if (otherLi && otherLi !== li) {
          editor.undoManager.transact(() => {
            if (isForward) {
              mergeForward(editor, rng, otherLi, li);
            } else {
              if (isFirstChild(li)) {
                outdentListSelection(editor);
              } else {
                mergeBackward(editor, rng, li, otherLi);
              }
            }
          });
          return true;
        } else if (!otherLi) {
          if (!isForward && rng.startOffset === 0 && rng.endOffset === 0) {
            editor.undoManager.transact(() => {
              flattenListSelection(editor);
            });
            return true;
          }
        }
      }
      return false;
    };
    const removeBlock = (dom, block, root) => {
      const parentBlock = dom.getParent(block.parentNode, dom.isBlock, root);
      dom.remove(block);
      if (parentBlock && dom.isEmpty(parentBlock)) {
        dom.remove(parentBlock);
      }
    };
    const backspaceDeleteIntoListCaret = (editor, isForward) => {
      const dom = editor.dom;
      const selectionStartElm = editor.selection.getStart();
      const root = getClosestEditingHost(editor, selectionStartElm);
      const block = dom.getParent(selectionStartElm, dom.isBlock, root);
      if (block && dom.isEmpty(block)) {
        const rng = normalizeRange(editor.selection.getRng());
        const otherLi = dom.getParent(findNextCaretContainer(editor, rng, isForward, root), 'LI', root);
        if (otherLi) {
          const findValidElement = element => contains$1([
            'td',
            'th',
            'caption'
          ], name(element));
          const findRoot = node => node.dom === root;
          const otherLiCell = closest(SugarElement.fromDom(otherLi), findValidElement, findRoot);
          const caretCell = closest(SugarElement.fromDom(rng.startContainer), findValidElement, findRoot);
          if (!equals(otherLiCell, caretCell, eq)) {
            return false;
          }
          editor.undoManager.transact(() => {
            removeBlock(dom, block, root);
            mergeWithAdjacentLists(dom, otherLi.parentNode);
            editor.selection.select(otherLi, true);
            editor.selection.collapse(isForward);
          });
          return true;
        }
      }
      return false;
    };
    const backspaceDeleteCaret = (editor, isForward) => {
      return backspaceDeleteFromListToListCaret(editor, isForward) || backspaceDeleteIntoListCaret(editor, isForward);
    };
    const hasListSelection = editor => {
      const selectionStartElm = editor.selection.getStart();
      const root = getClosestEditingHost(editor, selectionStartElm);
      const startListParent = editor.dom.getParent(selectionStartElm, 'LI,DT,DD', root);
      return startListParent || getSelectedListItems(editor).length > 0;
    };
    const backspaceDeleteRange = editor => {
      if (hasListSelection(editor)) {
        editor.undoManager.transact(() => {
          editor.execCommand('Delete');
          normalizeLists(editor.dom, editor.getBody());
        });
        return true;
      }
      return false;
    };
    const backspaceDelete = (editor, isForward) => {
      const selection = editor.selection;
      return !isWithinNonEditableList(editor, selection.getNode()) && (selection.isCollapsed() ? backspaceDeleteCaret(editor, isForward) : backspaceDeleteRange(editor));
    };
    const setup$2 = editor => {
      editor.on('ExecCommand', e => {
        const cmd = e.command.toLowerCase();
        if ((cmd === 'delete' || cmd === 'forwarddelete') && hasListSelection(editor)) {
          normalizeLists(editor.dom, editor.getBody());
        }
      });
      editor.on('keydown', e => {
        if (e.keyCode === global$4.BACKSPACE) {
          if (backspaceDelete(editor, false)) {
            e.preventDefault();
          }
        } else if (e.keyCode === global$4.DELETE) {
          if (backspaceDelete(editor, true)) {
            e.preventDefault();
          }
        }
      });
    };

    const get = editor => ({
      backspaceDelete: isForward => {
        backspaceDelete(editor, isForward);
      }
    });

    const updateList = (editor, update) => {
      const parentList = getParentList(editor);
      if (parentList === null || isWithinNonEditableList(editor, parentList)) {
        return;
      }
      editor.undoManager.transact(() => {
        if (isObject(update.styles)) {
          editor.dom.setStyles(parentList, update.styles);
        }
        if (isObject(update.attrs)) {
          each(update.attrs, (v, k) => editor.dom.setAttrib(parentList, k, v));
        }
      });
    };

    const parseAlphabeticBase26 = str => {
      const chars = reverse(trim(str).split(''));
      const values = map(chars, (char, i) => {
        const charValue = char.toUpperCase().charCodeAt(0) - 'A'.charCodeAt(0) + 1;
        return Math.pow(26, i) * charValue;
      });
      return foldl(values, (sum, v) => sum + v, 0);
    };
    const composeAlphabeticBase26 = value => {
      value--;
      if (value < 0) {
        return '';
      } else {
        const remainder = value % 26;
        const quotient = Math.floor(value / 26);
        const rest = composeAlphabeticBase26(quotient);
        const char = String.fromCharCode('A'.charCodeAt(0) + remainder);
        return rest + char;
      }
    };
    const isUppercase = str => /^[A-Z]+$/.test(str);
    const isLowercase = str => /^[a-z]+$/.test(str);
    const isNumeric = str => /^[0-9]+$/.test(str);
    const deduceListType = start => {
      if (isNumeric(start)) {
        return 2;
      } else if (isUppercase(start)) {
        return 0;
      } else if (isLowercase(start)) {
        return 1;
      } else if (isEmpty$1(start)) {
        return 3;
      } else {
        return 4;
      }
    };
    const parseStartValue = start => {
      switch (deduceListType(start)) {
      case 2:
        return Optional.some({
          listStyleType: Optional.none(),
          start
        });
      case 0:
        return Optional.some({
          listStyleType: Optional.some('upper-alpha'),
          start: parseAlphabeticBase26(start).toString()
        });
      case 1:
        return Optional.some({
          listStyleType: Optional.some('lower-alpha'),
          start: parseAlphabeticBase26(start).toString()
        });
      case 3:
        return Optional.some({
          listStyleType: Optional.none(),
          start: ''
        });
      case 4:
        return Optional.none();
      }
    };
    const parseDetail = detail => {
      const start = parseInt(detail.start, 10);
      if (is$2(detail.listStyleType, 'upper-alpha')) {
        return composeAlphabeticBase26(start);
      } else if (is$2(detail.listStyleType, 'lower-alpha')) {
        return composeAlphabeticBase26(start).toLowerCase();
      } else {
        return detail.start;
      }
    };

    const open = editor => {
      const currentList = getParentList(editor);
      if (!isOlNode(currentList) || isWithinNonEditableList(editor, currentList)) {
        return;
      }
      editor.windowManager.open({
        title: 'List Properties',
        body: {
          type: 'panel',
          items: [{
              type: 'input',
              name: 'start',
              label: 'Start list at number',
              inputMode: 'numeric'
            }]
        },
        initialData: {
          start: parseDetail({
            start: editor.dom.getAttrib(currentList, 'start', '1'),
            listStyleType: Optional.from(editor.dom.getStyle(currentList, 'list-style-type'))
          })
        },
        buttons: [
          {
            type: 'cancel',
            name: 'cancel',
            text: 'Cancel'
          },
          {
            type: 'submit',
            name: 'save',
            text: 'Save',
            primary: true
          }
        ],
        onSubmit: api => {
          const data = api.getData();
          parseStartValue(data.start).each(detail => {
            editor.execCommand('mceListUpdate', false, {
              attrs: { start: detail.start === '1' ? '' : detail.start },
              styles: { 'list-style-type': detail.listStyleType.getOr('') }
            });
          });
          api.close();
        }
      });
    };

    const queryListCommandState = (editor, listName) => () => {
      const parentList = getParentList(editor);
      return isNonNullable(parentList) && parentList.nodeName === listName;
    };
    const registerDialog = editor => {
      editor.addCommand('mceListProps', () => {
        open(editor);
      });
    };
    const register$2 = editor => {
      editor.on('BeforeExecCommand', e => {
        const cmd = e.command.toLowerCase();
        if (cmd === 'indent') {
          indentListSelection(editor);
        } else if (cmd === 'outdent') {
          outdentListSelection(editor);
        }
      });
      editor.addCommand('InsertUnorderedList', (ui, detail) => {
        toggleList(editor, 'UL', detail);
      });
      editor.addCommand('InsertOrderedList', (ui, detail) => {
        toggleList(editor, 'OL', detail);
      });
      editor.addCommand('InsertDefinitionList', (ui, detail) => {
        toggleList(editor, 'DL', detail);
      });
      editor.addCommand('RemoveList', () => {
        flattenListSelection(editor);
      });
      registerDialog(editor);
      editor.addCommand('mceListUpdate', (ui, detail) => {
        if (isObject(detail)) {
          updateList(editor, detail);
        }
      });
      editor.addQueryStateHandler('InsertUnorderedList', queryListCommandState(editor, 'UL'));
      editor.addQueryStateHandler('InsertOrderedList', queryListCommandState(editor, 'OL'));
      editor.addQueryStateHandler('InsertDefinitionList', queryListCommandState(editor, 'DL'));
    };

    var global = tinymce.util.Tools.resolve('tinymce.html.Node');

    const isTextNode = node => node.type === 3;
    const isEmpty = nodeBuffer => nodeBuffer.length === 0;
    const wrapInvalidChildren = list => {
      const insertListItem = (buffer, refNode) => {
        const li = global.create('li');
        each$1(buffer, node => li.append(node));
        if (refNode) {
          list.insert(li, refNode, true);
        } else {
          list.append(li);
        }
      };
      const reducer = (buffer, node) => {
        if (isTextNode(node)) {
          return [
            ...buffer,
            node
          ];
        } else if (!isEmpty(buffer) && !isTextNode(node)) {
          insertListItem(buffer, node);
          return [];
        } else {
          return buffer;
        }
      };
      const restBuffer = foldl(list.children(), reducer, []);
      if (!isEmpty(restBuffer)) {
        insertListItem(restBuffer);
      }
    };
    const setup$1 = editor => {
      editor.on('PreInit', () => {
        const {parser} = editor;
        parser.addNodeFilter('ul,ol', nodes => each$1(nodes, wrapInvalidChildren));
      });
    };

    const setupTabKey = editor => {
      editor.on('keydown', e => {
        if (e.keyCode !== global$4.TAB || global$4.metaKeyPressed(e)) {
          return;
        }
        editor.undoManager.transact(() => {
          if (e.shiftKey ? outdentListSelection(editor) : indentListSelection(editor)) {
            e.preventDefault();
          }
        });
      });
    };
    const setup = editor => {
      if (shouldIndentOnTab(editor)) {
        setupTabKey(editor);
      }
      setup$2(editor);
    };

    const setupToggleButtonHandler = (editor, listName) => api => {
      const toggleButtonHandler = e => {
        api.setActive(inList(e.parents, listName));
        api.setEnabled(!isWithinNonEditableList(editor, e.element) && editor.selection.isEditable());
      };
      api.setEnabled(editor.selection.isEditable());
      return setNodeChangeHandler(editor, toggleButtonHandler);
    };
    const register$1 = editor => {
      const exec = command => () => editor.execCommand(command);
      if (!editor.hasPlugin('advlist')) {
        editor.ui.registry.addToggleButton('numlist', {
          icon: 'ordered-list',
          active: false,
          tooltip: 'Numbered list',
          onAction: exec('InsertOrderedList'),
          onSetup: setupToggleButtonHandler(editor, 'OL')
        });
        editor.ui.registry.addToggleButton('bullist', {
          icon: 'unordered-list',
          active: false,
          tooltip: 'Bullet list',
          onAction: exec('InsertUnorderedList'),
          onSetup: setupToggleButtonHandler(editor, 'UL')
        });
      }
    };

    const setupMenuButtonHandler = (editor, listName) => api => {
      const menuButtonHandler = e => api.setEnabled(inList(e.parents, listName) && !isWithinNonEditableList(editor, e.element));
      return setNodeChangeHandler(editor, menuButtonHandler);
    };
    const register = editor => {
      const listProperties = {
        text: 'List properties...',
        icon: 'ordered-list',
        onAction: () => editor.execCommand('mceListProps'),
        onSetup: setupMenuButtonHandler(editor, 'OL')
      };
      editor.ui.registry.addMenuItem('listprops', listProperties);
      editor.ui.registry.addContextMenu('lists', {
        update: node => {
          const parentList = getParentList(editor, node);
          return isOlNode(parentList) ? ['listprops'] : [];
        }
      });
    };

    var Plugin = () => {
      global$7.add('lists', editor => {
        register$3(editor);
        setup$1(editor);
        if (!editor.hasPlugin('rtc', true)) {
          setup(editor);
          register$2(editor);
        } else {
          registerDialog(editor);
        }
        register$1(editor);
        register(editor);
        return get(editor);
      });
    };

    Plugin();

})();