/**
 * TinyMCE version 6.8.5 (TBD)
 */

(function () {
    'use strict';

    var global = 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 isBoolean = isSimpleType('boolean');
    const isNullable = a => a === null || a === undefined;
    const isNonNullable = a => !isNullable(a);
    const isFunction = isSimpleType('function');
    const isNumber = isSimpleType('number');

    const compose1 = (fbc, fab) => a => fbc(fab(a));
    const constant = value => {
      return () => {
        return value;
      };
    };
    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 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 = (xs, f) => {
      for (let i = 0, len = xs.length; i < len; i++) {
        const x = xs[i];
        f(x, i);
      }
    };
    const filter = (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 DOCUMENT = 9;
    const DOCUMENT_FRAGMENT = 11;
    const ELEMENT = 1;
    const TEXT = 3;

    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(div.childNodes[0]);
    };
    const fromTag = (tag, scope) => {
      const doc = scope || document;
      const node = doc.createElement(tag);
      return fromDom(node);
    };
    const fromText = (text, scope) => {
      const doc = scope || document;
      const node = doc.createTextNode(text);
      return fromDom(node);
    };
    const fromDom = 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);
    const SugarElement = {
      fromHtml,
      fromTag,
      fromText,
      fromDom,
      fromPoint
    };

    const is = (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');
        }
      }
    };

    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 = isType(ELEMENT);
    const isText = isType(TEXT);
    const isDocument = isType(DOCUMENT);
    const isDocumentFragment = isType(DOCUMENT_FRAGMENT);
    const isTag = tag => e => isElement(e) && name(e) === tag;

    const owner = element => SugarElement.fromDom(element.dom.ownerDocument);
    const documentOrOwner = dos => isDocument(dos) ? dos : owner(dos);
    const parent = element => Optional.from(element.dom.parentNode).map(SugarElement.fromDom);
    const children$2 = element => map(element.dom.childNodes, SugarElement.fromDom);

    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 set = (element, key, value) => {
      rawSet(element.dom, key, value);
    };
    const remove = (element, key) => {
      element.dom.removeAttribute(key);
    };

    const isShadowRoot = dos => isDocumentFragment(dos) && isNonNullable(dos.dom.host);
    const supported = isFunction(Element.prototype.attachShadow) && isFunction(Node.prototype.getRootNode);
    const getRootNode = supported ? e => SugarElement.fromDom(e.dom.getRootNode()) : documentOrOwner;
    const getShadowRoot = e => {
      const r = getRootNode(e);
      return isShadowRoot(r) ? Optional.some(r) : Optional.none();
    };
    const getShadowHost = e => SugarElement.fromDom(e.dom.host);

    const inBody = element => {
      const dom = isText(element) ? element.dom.parentNode : element.dom;
      if (dom === undefined || dom === null || dom.ownerDocument === null) {
        return false;
      }
      const doc = dom.ownerDocument;
      return getShadowRoot(SugarElement.fromDom(dom)).fold(() => doc.body.contains(dom), compose1(inBody, getShadowHost));
    };

    const ancestor$1 = (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 ancestor = (scope, selector, isRoot) => ancestor$1(scope, e => is(e, selector), isRoot);

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

    const get = (element, property) => {
      const dom = element.dom;
      const styles = window.getComputedStyle(dom);
      const r = styles.getPropertyValue(property);
      return r === '' && !inBody(element) ? getUnsafeProperty(dom, property) : r;
    };
    const getUnsafeProperty = (dom, property) => isSupported(dom) ? dom.style.getPropertyValue(property) : '';

    const getDirection = element => get(element, 'direction') === 'rtl' ? 'rtl' : 'ltr';

    const children$1 = (scope, predicate) => filter(children$2(scope), predicate);

    const children = (scope, selector) => children$1(scope, e => is(e, selector));

    const getParentElement = element => parent(element).filter(isElement);
    const getNormalizedBlock = (element, isListItem) => {
      const normalizedElement = isListItem ? ancestor(element, 'ol,ul') : Optional.some(element);
      return normalizedElement.getOr(element);
    };
    const isListItem = isTag('li');
    const setDirOnElements = (dom, blocks, dir) => {
      each(blocks, block => {
        const blockElement = SugarElement.fromDom(block);
        const isBlockElementListItem = isListItem(blockElement);
        const normalizedBlock = getNormalizedBlock(blockElement, isBlockElementListItem);
        const normalizedBlockParent = getParentElement(normalizedBlock);
        normalizedBlockParent.each(parent => {
          dom.setStyle(normalizedBlock.dom, 'direction', null);
          const parentDirection = getDirection(parent);
          if (parentDirection === dir) {
            remove(normalizedBlock, 'dir');
          } else {
            set(normalizedBlock, 'dir', dir);
          }
          if (getDirection(normalizedBlock) !== dir) {
            dom.setStyle(normalizedBlock.dom, 'direction', dir);
          }
          if (isBlockElementListItem) {
            const listItems = children(normalizedBlock, 'li[dir],li[style]');
            each(listItems, listItem => {
              remove(listItem, 'dir');
              dom.setStyle(listItem.dom, 'direction', null);
            });
          }
        });
      });
    };
    const setDir = (editor, dir) => {
      if (editor.selection.isEditable()) {
        setDirOnElements(editor.dom, editor.selection.getSelectedBlocks(), dir);
        editor.nodeChanged();
      }
    };

    const register$1 = editor => {
      editor.addCommand('mceDirectionLTR', () => {
        setDir(editor, 'ltr');
      });
      editor.addCommand('mceDirectionRTL', () => {
        setDir(editor, 'rtl');
      });
    };

    const getNodeChangeHandler = (editor, dir) => api => {
      const nodeChangeHandler = e => {
        const element = SugarElement.fromDom(e.element);
        api.setActive(getDirection(element) === dir);
        api.setEnabled(editor.selection.isEditable());
      };
      editor.on('NodeChange', nodeChangeHandler);
      api.setEnabled(editor.selection.isEditable());
      return () => editor.off('NodeChange', nodeChangeHandler);
    };
    const register = editor => {
      editor.ui.registry.addToggleButton('ltr', {
        tooltip: 'Left to right',
        icon: 'ltr',
        onAction: () => editor.execCommand('mceDirectionLTR'),
        onSetup: getNodeChangeHandler(editor, 'ltr')
      });
      editor.ui.registry.addToggleButton('rtl', {
        tooltip: 'Right to left',
        icon: 'rtl',
        onAction: () => editor.execCommand('mceDirectionRTL'),
        onSetup: getNodeChangeHandler(editor, 'rtl')
      });
    };

    var Plugin = () => {
      global.add('directionality', editor => {
        register$1(editor);
        register(editor);
      });
    };

    Plugin();

})();
