changeTab: function()

in site/semantic/src/definitions/modules/tab.js [310:408]
85 lines of code
21 McCabe index (conditional complexity)

        changeTab: function(tabPath) {
          var
            pushStateAvailable = (window.history && window.history.pushState),
            shouldIgnoreLoad   = (pushStateAvailable && settings.ignoreFirstLoad && firstLoad),
            remoteContent      = (settings.auto || $.isPlainObject(settings.apiSettings) ),
            // only add default path if not remote content
            pathArray = (remoteContent && !shouldIgnoreLoad)
              ? module.utilities.pathToArray(tabPath)
              : module.get.defaultPathArray(tabPath)
          ;
          tabPath = module.utilities.arrayToPath(pathArray);
          $.each(pathArray, function(index, tab) {
            var
              currentPathArray   = pathArray.slice(0, index + 1),
              currentPath        = module.utilities.arrayToPath(currentPathArray),

              isTab              = module.is.tab(currentPath),
              isLastIndex        = (index + 1 == pathArray.length),

              $tab               = module.get.tabElement(currentPath),
              $anchor,
              nextPathArray,
              nextPath,
              isLastTab
            ;
            module.verbose('Looking for tab', tab);
            if(isTab) {
              module.verbose('Tab was found', tab);
              // scope up
              activeTabPath  = currentPath;
              parameterArray = module.utilities.filterArray(pathArray, currentPathArray);

              if(isLastIndex) {
                isLastTab = true;
              }
              else {
                nextPathArray = pathArray.slice(0, index + 2);
                nextPath      = module.utilities.arrayToPath(nextPathArray);
                isLastTab     = ( !module.is.tab(nextPath) );
                if(isLastTab) {
                  module.verbose('Tab parameters found', nextPathArray);
                }
              }
              if(isLastTab && remoteContent) {
                if(!shouldIgnoreLoad) {
                  module.activate.navigation(currentPath);
                  module.fetch.content(currentPath, tabPath);
                }
                else {
                  module.debug('Ignoring remote content on first tab load', currentPath);
                  firstLoad = false;
                  module.cache.add(tabPath, $tab.html());
                  module.activate.all(currentPath);
                  settings.onFirstLoad.call($tab[0], currentPath, parameterArray, historyEvent);
                  settings.onLoad.call($tab[0], currentPath, parameterArray, historyEvent);
                }
                return false;
              }
              else {
                module.debug('Opened local tab', currentPath);
                module.activate.all(currentPath);
                if( !module.cache.read(currentPath) ) {
                  module.cache.add(currentPath, true);
                  module.debug('First time tab loaded calling tab init');
                  settings.onFirstLoad.call($tab[0], currentPath, parameterArray, historyEvent);
                }
                settings.onLoad.call($tab[0], currentPath, parameterArray, historyEvent);
              }

            }
            else if(tabPath.search('/') == -1 && tabPath !== '') {
              // look for in page anchor
              $anchor     = $('#' + tabPath + ', a[name="' + tabPath + '"]');
              currentPath = $anchor.closest('[data-tab]').data(metadata.tab);
              $tab        = module.get.tabElement(currentPath);
              // if anchor exists use parent tab
              if($anchor && $anchor.length > 0 && currentPath) {
                module.debug('Anchor link used, opening parent tab', $tab, $anchor);
                if( !$tab.hasClass(className.active) ) {
                  setTimeout(function() {
                    module.scrollTo($anchor);
                  }, 0);
                }
                module.activate.all(currentPath);
                if( !module.cache.read(currentPath) ) {
                  module.cache.add(currentPath, true);
                  module.debug('First time tab loaded calling tab init');
                  settings.onFirstLoad.call($tab[0], currentPath, parameterArray, historyEvent);
                }
                settings.onLoad.call($tab[0], currentPath, parameterArray, historyEvent);
                return false;
              }
            }
            else {
              module.error(error.missingTab, $module, $context, currentPath);
              return false;
            }
          });
        },