/**
 * TinyMCE version 6.8.6 (TBD)
 */

(function () {
    'use strict';

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

    const isSimpleType = type => value => typeof value === type;
    const isBoolean = isSimpleType('boolean');
    const isNumber = isSimpleType('number');

    const option = name => editor => editor.options.get(name);
    const register$2 = editor => {
      const registerOption = editor.options.register;
      registerOption('nonbreaking_force_tab', {
        processor: value => {
          if (isBoolean(value)) {
            return {
              value: value ? 3 : 0,
              valid: true
            };
          } else if (isNumber(value)) {
            return {
              value,
              valid: true
            };
          } else {
            return {
              valid: false,
              message: 'Must be a boolean or number.'
            };
          }
        },
        default: false
      });
      registerOption('nonbreaking_wrap', {
        processor: 'boolean',
        default: true
      });
    };
    const getKeyboardSpaces = option('nonbreaking_force_tab');
    const wrapNbsps = option('nonbreaking_wrap');

    const stringRepeat = (string, repeats) => {
      let str = '';
      for (let index = 0; index < repeats; index++) {
        str += string;
      }
      return str;
    };
    const isVisualCharsEnabled = editor => editor.plugins.visualchars ? editor.plugins.visualchars.isEnabled() : false;
    const insertNbsp = (editor, times) => {
      const classes = () => isVisualCharsEnabled(editor) ? 'mce-nbsp-wrap mce-nbsp' : 'mce-nbsp-wrap';
      const nbspSpan = () => `<span class="${ classes() }" contenteditable="false">${ stringRepeat('&nbsp;', times) }</span>`;
      const shouldWrap = wrapNbsps(editor);
      const html = shouldWrap || editor.plugins.visualchars ? nbspSpan() : stringRepeat('&nbsp;', times);
      editor.undoManager.transact(() => editor.insertContent(html));
    };

    const register$1 = editor => {
      editor.addCommand('mceNonBreaking', () => {
        insertNbsp(editor, 1);
      });
    };

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

    const setup = editor => {
      const spaces = getKeyboardSpaces(editor);
      if (spaces > 0) {
        editor.on('keydown', e => {
          if (e.keyCode === global.TAB && !e.isDefaultPrevented()) {
            if (e.shiftKey) {
              return;
            }
            e.preventDefault();
            e.stopImmediatePropagation();
            insertNbsp(editor, spaces);
          }
        });
      }
    };

    const onSetupEditable = editor => api => {
      const nodeChanged = () => {
        api.setEnabled(editor.selection.isEditable());
      };
      editor.on('NodeChange', nodeChanged);
      nodeChanged();
      return () => {
        editor.off('NodeChange', nodeChanged);
      };
    };
    const register = editor => {
      const onAction = () => editor.execCommand('mceNonBreaking');
      editor.ui.registry.addButton('nonbreaking', {
        icon: 'non-breaking',
        tooltip: 'Nonbreaking space',
        onAction,
        onSetup: onSetupEditable(editor)
      });
      editor.ui.registry.addMenuItem('nonbreaking', {
        icon: 'non-breaking',
        text: 'Nonbreaking space',
        onAction,
        onSetup: onSetupEditable(editor)
      });
    };

    var Plugin = () => {
      global$1.add('nonbreaking', editor => {
        register$2(editor);
        register$1(editor);
        register(editor);
        setup(editor);
      });
    };

    Plugin();

})();