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Current File : /home/koperas1/catering.koperasikuwaluyosejati.com/plugins/summernote/plugin/specialchars/summernote-ext-specialchars.js
(function(factory) {
  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($) {
  $.extend($.summernote.plugins, {
    'specialchars': function(context) {
      var self = this;
      var ui = $.summernote.ui;

      var $editor = context.layoutInfo.editor;
      var options = context.options;
      var lang = options.langInfo;

      var KEY = {
        UP: 38,
        DOWN: 40,
        LEFT: 37,
        RIGHT: 39,
        ENTER: 13,
      };
      var COLUMN_LENGTH = 15;
      var COLUMN_WIDTH = 35;

      var currentColumn = 0;
      var currentRow = 0;
      var totalColumn = 0;
      var totalRow = 0;

      // special characters data set
      var specialCharDataSet = [
        '"', '&', '<', '>', '¡', '¢',
        '£', '¤', '¥', '¦', '§',
        '¨', '©', 'ª', '«', '¬',
        '®', '¯', '°', '±', '²',
        '³', '´', 'µ', '¶', '·',
        '¸', '¹', 'º', '»', '¼',
        '½', '¾', '¿', '×', '÷',
        'ƒ', 'ˆ', '˜', '–', '—',
        '‘', '’', '‚', '“', '”',
        '„', '†', '‡', '•', '…',
        '‰', '′', '″', '‹', '›',
        '‾', '⁄', '€', 'ℑ', '℘',
        'ℜ', '™', 'ℵ', '←', '↑',
        '→', '↓', '↔', '↵', '⇐',
        '⇑', '⇒', '⇓', '⇔', '∀',
        '∂', '∃', '∅', '∇', '∈',
        '∉', '∋', '∏', '∑', '−',
        '∗', '√', '∝', '∞', '∠',
        '∧', '∨', '∩', '∪', '∫',
        '∴', '∼', '≅', '≈', '≠',
        '≡', '≤', '≥', '⊂', '⊃',
        '⊄', '⊆', '⊇', '⊕', '⊗',
        '⊥', '⋅', '⌈', '⌉', '⌊',
        '⌋', '◊', '♠', '♣', '♥',
        '♦',
      ];

      context.memo('button.specialchars', function() {
        return ui.button({
          contents: '<i class="fa fa-font fa-flip-vertical">',
          tooltip: lang.specialChar.specialChar,
          click: function() {
            self.show();
          },
        }).render();
      });

      /**
       * Make Special Characters Table
       *
       * @member plugin.specialChar
       * @private
       * @return {jQuery}
       */
      this.makeSpecialCharSetTable = function() {
        var $table = $('<table/>');
        $.each(specialCharDataSet, function(idx, text) {
          var $td = $('<td/>').addClass('note-specialchar-node');
          var $tr = (idx % COLUMN_LENGTH === 0) ? $('<tr/>') : $table.find('tr').last();

          var $button = ui.button({
            callback: function($node) {
              $node.html(text);
              $node.attr('title', text);
              $node.attr('data-value', encodeURIComponent(text));
              $node.css({
                width: COLUMN_WIDTH,
                'margin-right': '2px',
                'margin-bottom': '2px',
              });
            },
          }).render();

          $td.append($button);

          $tr.append($td);
          if (idx % COLUMN_LENGTH === 0) {
            $table.append($tr);
          }
        });

        totalRow = $table.find('tr').length;
        totalColumn = COLUMN_LENGTH;

        return $table;
      };

      this.initialize = function() {
        var $container = options.dialogsInBody ? $(document.body) : $editor;

        var body = '<div class="form-group row-fluid">' + this.makeSpecialCharSetTable()[0].outerHTML + '</div>';

        this.$dialog = ui.dialog({
          title: lang.specialChar.select,
          body: body,
        }).render().appendTo($container);
      };

      this.show = function() {
        var text = context.invoke('editor.getSelectedText');
        context.invoke('editor.saveRange');
        this.showSpecialCharDialog(text).then(function(selectChar) {
          context.invoke('editor.restoreRange');

          // build node
          var $node = $('<span></span>').html(selectChar)[0];

          if ($node) {
            // insert video node
            context.invoke('editor.insertNode', $node);
          }
        }).fail(function() {
          context.invoke('editor.restoreRange');
        });
      };

      /**
       * show image dialog
       *
       * @param {jQuery} $dialog
       * @return {Promise}
       */
      this.showSpecialCharDialog = function(text) {
        return $.Deferred(function(deferred) {
          var $specialCharDialog = self.$dialog;
          var $specialCharNode = $specialCharDialog.find('.note-specialchar-node');
          var $selectedNode = null;
          var ARROW_KEYS = [KEY.UP, KEY.DOWN, KEY.LEFT, KEY.RIGHT];
          var ENTER_KEY = KEY.ENTER;

          function addActiveClass($target) {
            if (!$target) {
              return;
            }
            $target.find('button').addClass('active');
            $selectedNode = $target;
          }

          function removeActiveClass($target) {
            $target.find('button').removeClass('active');
            $selectedNode = null;
          }

          // find next node
          function findNextNode(row, column) {
            var findNode = null;
            $.each($specialCharNode, function(idx, $node) {
              var findRow = Math.ceil((idx + 1) / COLUMN_LENGTH);
              var findColumn = ((idx + 1) % COLUMN_LENGTH === 0) ? COLUMN_LENGTH : (idx + 1) % COLUMN_LENGTH;
              if (findRow === row && findColumn === column) {
                findNode = $node;
                return false;
              }
            });
            return $(findNode);
          }

          function arrowKeyHandler(keyCode) {
            // left, right, up, down key
            var $nextNode;
            var lastRowColumnLength = $specialCharNode.length % totalColumn;

            if (KEY.LEFT === keyCode) {
              if (currentColumn > 1) {
                currentColumn = currentColumn - 1;
              } else if (currentRow === 1 && currentColumn === 1) {
                currentColumn = lastRowColumnLength;
                currentRow = totalRow;
              } else {
                currentColumn = totalColumn;
                currentRow = currentRow - 1;
              }
            } else if (KEY.RIGHT === keyCode) {
              if (currentRow === totalRow && lastRowColumnLength === currentColumn) {
                currentColumn = 1;
                currentRow = 1;
              } else if (currentColumn < totalColumn) {
                currentColumn = currentColumn + 1;
              } else {
                currentColumn = 1;
                currentRow = currentRow + 1;
              }
            } else if (KEY.UP === keyCode) {
              if (currentRow === 1 && lastRowColumnLength < currentColumn) {
                currentRow = totalRow - 1;
              } else {
                currentRow = currentRow - 1;
              }
            } else if (KEY.DOWN === keyCode) {
              currentRow = currentRow + 1;
            }

            if (currentRow === totalRow && currentColumn > lastRowColumnLength) {
              currentRow = 1;
            } else if (currentRow > totalRow) {
              currentRow = 1;
            } else if (currentRow < 1) {
              currentRow = totalRow;
            }

            $nextNode = findNextNode(currentRow, currentColumn);

            if ($nextNode) {
              removeActiveClass($selectedNode);
              addActiveClass($nextNode);
            }
          }

          function enterKeyHandler() {
            if (!$selectedNode) {
              return;
            }

            deferred.resolve(decodeURIComponent($selectedNode.find('button').attr('data-value')));
            $specialCharDialog.modal('hide');
          }

          function keyDownEventHandler(event) {
            event.preventDefault();
            var keyCode = event.keyCode;
            if (keyCode === undefined || keyCode === null) {
              return;
            }
            // check arrowKeys match
            if (ARROW_KEYS.indexOf(keyCode) > -1) {
              if ($selectedNode === null) {
                addActiveClass($specialCharNode.eq(0));
                currentColumn = 1;
                currentRow = 1;
                return;
              }
              arrowKeyHandler(keyCode);
            } else if (keyCode === ENTER_KEY) {
              enterKeyHandler();
            }
            return false;
          }

          // remove class
          removeActiveClass($specialCharNode);

          // find selected node
          if (text) {
            for (var i = 0; i < $specialCharNode.length; i++) {
              var $checkNode = $($specialCharNode[i]);
              if ($checkNode.text() === text) {
                addActiveClass($checkNode);
                currentRow = Math.ceil((i + 1) / COLUMN_LENGTH);
                currentColumn = (i + 1) % COLUMN_LENGTH;
              }
            }
          }

          ui.onDialogShown(self.$dialog, function() {
            $(document).on('keydown', keyDownEventHandler);

            self.$dialog.find('button').tooltip();

            $specialCharNode.on('click', function(event) {
              event.preventDefault();
              deferred.resolve(decodeURIComponent($(event.currentTarget).find('button').attr('data-value')));
              ui.hideDialog(self.$dialog);
            });
          });

          ui.onDialogHidden(self.$dialog, function() {
            $specialCharNode.off('click');

            self.$dialog.find('button').tooltip('destroy');

            $(document).off('keydown', keyDownEventHandler);

            if (deferred.state() === 'pending') {
              deferred.reject();
            }
          });

          ui.showDialog(self.$dialog);
        });
      };
    },
  });
}));