jquery.tree.cookie.js

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

      $.extend($.tree.plugins, {
            "cookie" : {
                  defaults : {
                        prefix            : "", // a prefix that will be used for all cookies for this tree
                        options           : { 
                              expires: false, 
                              path: false, 
                              domain: false, 
                              secure: false 
                        },
                        types : {
                              selected    : true,           // should we set the selected cookie
                              open        : true            // should we set the open cookie
                        },
                        keep_selected     : false,    // should we merge with the selected option or overwrite it
                        keep_opened       : false           // should we merge with the opened option or overwrite it
                  },
                  set_cookie : function (type) {
                        var opts = $.extend(true, {}, $.tree.plugins.cookie.defaults, this.settings.plugins.cookie);
                        if(opts.types[type] !== true) return false;
                        switch(type) {
                              case "selected":
                                    if(this.settings.rules.multiple != false && this.selected_arr.length > 1) {
                                          var val = Array();
                                          $.each(this.selected_arr, function () {
                                                if(this.attr("id")) { val.push(this.attr("id")); }
                                          });
                                          val = val.join(",");
                                    }
                                    else var val = this.selected ? this.selected.attr("id") : false;
                                    $.cookie(opts.prefix + 'selected', val, opts.options);
                                    break;
                              case "open":
                                    var str = "";
                                    this.container.find("li.open").each(function (i) { if(this.id) { str += this.id + ","; } });
                                    $.cookie(opts.prefix + 'open', str.replace(/,$/ig,""), opts.options);
                                    break;
                        }
                  },
                  callbacks : {
                        oninit : function (t) {
                              var opts = $.extend(true, {}, $.tree.plugins.cookie.defaults, this.settings.plugins.cookie);
                              var tmp = false;
                              tmp = $.cookie(opts.prefix + 'open');
                              if(tmp) {
                                    tmp = tmp.split(",");
                                    if(opts.keep_opened)    this.settings.opened = $.unique($.merge(tmp, this.settings.opened));
                                    else                          this.settings.opened = tmp;
                              }
                              tmp = $.cookie(opts.prefix + 'selected');
                              if(tmp) {
                                    tmp = tmp.split(",");
                                    if(opts.keep_selected)  this.settings.selected = $.unique($.merge(tmp, this.settings.opened));
                                    else                          this.settings.selected = tmp;
                              }
                        },
                        onchange    : function() { $.tree.plugins.cookie.set_cookie.apply(this, ["selected"]); },
                        onopen            : function() { $.tree.plugins.cookie.set_cookie.apply(this, ["open"]); },
                        onclose           : function() { $.tree.plugins.cookie.set_cookie.apply(this, ["open"]); },
                        ondelete    : function() { $.tree.plugins.cookie.set_cookie.apply(this, ["open"]); },
                        oncopy            : function() { $.tree.plugins.cookie.set_cookie.apply(this, ["open"]); },
                        oncreate    : function() { $.tree.plugins.cookie.set_cookie.apply(this, ["open"]); },
                        onmoved           : function() { $.tree.plugins.cookie.set_cookie.apply(this, ["open"]); }
                  }
            }
      });
})(jQuery);