SumOfUs/Champaign

//https://github.com/virtser/summernote-rtl-plugin
(function(factory) {
  /* global define */
  if (typeof define === 'function' && define.amd) {
    // AMD. Register as an anonymous module.
    define(['jquery'], factory);
  } else if (typeof module === 'object' && module.exports) {
    // Node/CommonJS
    module.exports = factory(require('jquery'));
  } else {
    // Browser globals
    factory(window.jQuery);
  }
})(function($) {
  // Extends plugins for adding hello.
  //  - plugin is external module for customizing.
  $.extend($.summernote.plugins, {
    /**
     * @param {Object} context - context object has status of editor.
     */
    rtl: function(context) {
      var self = this;
      var selection;
      // ui has renders to build ui elements.
      //  - you can create a button with `ui.button`
      var ui = $.summernote.ui;
      // add hello button
      context.memo('button.rtl', function() {
        // create button
        var button = ui.button({
          contents: '<i class="fa fa-paragraph"/><i class="fa fa-caret-left"/>',
          tooltip: 'Change text direction to the right',
          click: function() {
            function clearSelection() {
              if (document.selection) {
                document.selection.empty();
              } else if (window.getSelection) {
                window.getSelection().removeAllRanges();
              }
            }

            function getHTMLOfSelection() {
              var range;
              if (document.selection && document.selection.createRange) {
                range = document.selection.createRange();
                return range.htmlText;
              } else if (window.getSelection) {
                selection = window.getSelection();
                if (selection.rangeCount > 0) {
                  range = selection.getRangeAt(0);
                  var clonedSelection = range.cloneContents();
                  var div = document.createElement('div');
                  div.appendChild(clonedSelection);
                  return div.innerHTML;
                } else {
                  return '';
                }
              } else {
                return '';
              }
            }
            var highlight = window.getSelection();
            var range = highlight.getRangeAt(0);
            var elementsClass = range.endContainer.parentElement;

            window.highlight = highlight;
            window.range = range;
            window.elementsClass = elementsClass;
            if (
              elementsClass.style.direction != 'rtl' &&
              elementsClass.style.direction != 'ltr'
            ) {
              var spn = document.createElement('div');
              spn.innerHTML = getHTMLOfSelection();
              spn.style.direction = 'rtl';
              range.deleteContents();
              range.insertNode(spn);
            } else {
              elementsClass.style.direction = 'rtl';
              if ($(elementsClass).is('li')) {
                direction = $(elementsClass).css('direction');
                $(elementsClass)
                  .parent()
                  .css('direction', direction);
              }
            }
            clearSelection();
          },
        });
        // create jQuery object from button instance.
        var $rtl = button.render();
        return $rtl;
      });
    },
    ltr: function(context) {
      var self = this;
      // ui has renders to build ui elements.
      var ui = $.summernote.ui;
      context.memo('button.ltr', function() {
        // create button
        var button = ui.button({
          contents:
            '<i class="fa fa-caret-right"/><i class="fa fa-paragraph"/>',
          tooltip: 'Change text direction to the left',
          click: function() {
            function clearSelection() {
              if (document.selection) {
                document.selection.empty();
              } else if (window.getSelection) {
                window.getSelection().removeAllRanges();
              }
            }

            function getHTMLOfSelection() {
              var range;
              if (document.selection && document.selection.createRange) {
                range = document.selection.createRange();
                return range.htmlText;
              } else if (window.getSelection) {
                selection = window.getSelection();
                if (selection.rangeCount > 0) {
                  range = selection.getRangeAt(0);
                  var clonedSelection = range.cloneContents();
                  var div = document.createElement('div');
                  div.appendChild(clonedSelection);
                  return div.innerHTML;
                } else {
                  return '';
                }
              } else {
                return '';
              }
            }
            var highlight = window.getSelection();
            var range = highlight.getRangeAt(0);
            var elementsClass = range.endContainer.parentElement;
            if (
              elementsClass.style.direction != 'rtl' &&
              elementsClass.style.direction != 'ltr'
            ) {
              var spn = document.createElement('div');
              spn.innerHTML = getHTMLOfSelection();
              spn.style.direction = 'ltr';
              range.deleteContents();
              range.insertNode(spn);
            } else {
              elementsClass.style.direction = 'ltr';
              if ($(elementsClass).is('li')) {
                direction = $(elementsClass).css('direction');
                $(elementsClass)
                  .parent()
                  .css('direction', direction);
              }
            }
            clearSelection();
          },
        });
        // create jQuery object from button instance.
        var $ltr = button.render();
        return $ltr;
      });
    },
  });
});