jquery.tree.hotkeys.js

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(function ($) {
      if(typeof window.hotkeys == "undefined") throw "jsTree hotkeys: jQuery hotkeys plugin not included.";

      $.extend($.tree.plugins, {
            "hotkeys" : {
                  bound : [],
                  disabled : false,
                  defaults : {
                        hover_mode : false,
                        functions : {
                              "up"  : function () { $.tree.plugins.hotkeys.get_prev.apply(this); return false; },
                              "down"      : function () { $.tree.plugins.hotkeys.get_next.apply(this); return false; },
                              "left"      : function () { $.tree.plugins.hotkeys.get_left.apply(this); return false; },
                              "right"     : function () { $.tree.plugins.hotkeys.get_right.apply(this); return false; },
                              "f2"  : function () { if(this.selected) this.rename(); return false; },
                              "del" : function () { if(this.selected) this.remove(); return false; },
                              "ctrl+c": function () { if(this.selected) this.copy(); return false; },
                              "ctrl+x": function () { if(this.selected) this.cut(); return false; },
                              "ctrl+v": function () { if(this.selected) this.paste(); return false; }
                        }
                  },
                  exec : function(key) {
                        if($.tree.plugins.hotkeys.disabled) return false;

                        var t = $.tree.focused();
                        if(typeof t.settings.plugins.hotkeys == "undefined") return;
                        var opts = $.extend(true, {}, $.tree.plugins.hotkeys.defaults, t.settings.plugins.hotkeys);
                        if(typeof opts.functions[key] == "function") return opts.functions[key].apply(t);
                  },
                  get_next : function() {
                        var opts = $.extend(true, {}, $.tree.plugins.hotkeys.defaults, this.settings.plugins.hotkeys);
                        var obj = this.hovered || this.selected;
                        return opts.hover_mode ? this.hover_branch(this.next(obj)) : this.select_branch(this.next(obj));
                  },
                  get_prev : function() {
                        var opts = $.extend(true, {}, $.tree.plugins.hotkeys.defaults, this.settings.plugins.hotkeys);
                        var obj = this.hovered || this.selected;
                        return opts.hover_mode ? this.hover_branch(this.prev(obj)) : this.select_branch(this.prev(obj));
                  },
                  get_left : function() {
                        var opts = $.extend(true, {}, $.tree.plugins.hotkeys.defaults, this.settings.plugins.hotkeys);
                        var obj = this.hovered || this.selected;
                        if(obj) {
                              if(obj.hasClass("open"))      this.close_branch(obj);
                              else {
                                    return opts.hover_mode ? this.hover_branch(this.parent(obj)) : this.select_branch(this.parent(obj));
                              }
                        }
                  },
                  get_right : function() {
                        var opts = $.extend(true, {}, $.tree.plugins.hotkeys.defaults, this.settings.plugins.hotkeys);
                        var obj = this.hovered || this.selected;
                        if(obj) {
                              if(obj.hasClass("closed"))    this.open_branch(obj);
                              else {
                                    return opts.hover_mode ? this.hover_branch(obj.find("li:eq(0)")) : this.select_branch(obj.find("li:eq(0)"));
                              }
                        }
                  },

                  callbacks : {
                        oninit : function (t) {
                              var opts = $.extend(true, {}, $.tree.plugins.hotkeys.defaults, this.settings.plugins.hotkeys);
                              for(var i in opts.functions) {
                                    if(opts.functions.hasOwnProperty(i) && $.inArray(i, $.tree.plugins.hotkeys.bound) == -1) {
                                          (function (k) {
                                                $(document).bind("keydown", { combi : k, disableInInput: true }, function (event) {
                                                      return $.tree.plugins.hotkeys.exec(k);
                                                });
                                          })(i);
                                          $.tree.plugins.hotkeys.bound.push(i);
                                    }
                              }
                        }
                  }
            }
      });
})(jQuery);