nav.js

// Takes care of changing the view on the main area of the app window
// View names are string:
//   * one word for simple views (e.g., tables)
//   * two words separated by a dot for tabbed views (e.g. table.columns means the column tab subview of a single table view)
// Currently only those two levels are supported, but isCurrentView is prepared to support an arbitrary number of levels.
cdbmanager.service("nav", function () {
  let self = this;

  this.current = null;

  // Better use this instead of setting current directly.
  // In the future it's quite possible that changing the current view will be
  // a more complex step.
  this.setCurrentView = function (viewName) {
    self.current = viewName;
  };

  this.isCurrentView = function (viewName) {
    if (!self.current) {
      return false;
    }

    viewName = viewName.split(".");
    let currentSplit = self.current.split(".");

    for (let i = 0; i < viewName.length; i++) {
      if (viewName[i] != currentSplit[i]) {
        return false;
      }
    }

    return true;
  };
});