angularjs-batarang/js/controllers/PerfCtrl.js

panelApp.controller('PerfCtrl', function PerfCtrl($scope, appContext, filesystem) {

  $scope.histogram = [];

  $scope.roots = [];

  $scope.min = 0;
  $scope.max = 100;

  $scope.clearHistogram = function () {
    appContext.clearHistogram();
  };

  $scope.exportData = function () {
    filesystem.exportJSON('file.json', $scope.histogram);
  };

  // TODO: remove this (newVal === oldVal ?)
  var first = true;

  appContext.getDebug(function (result) {
    $scope.enable = result;

    $scope.$watch('enable', function (newVal, oldVal) {
      // prevent refresh on initial pageload
      if (first) {
        first = false;
      } else {
        appContext.setDebug(newVal);
      }
    });
  });

  $scope.$watch('log', function (newVal, oldVal) {
    appContext.setLog(newVal);
  });

  $scope.inspect = function () {
    appContext.inspect(this.val.id);
  };

  var updateTree = function () {
    $scope.histogram = appContext.getHistogram();
    var roots = appContext.getListOfRoots();
    if (!roots) {
      return;
    }
    
    $scope.tree = appContext.getWatchTree($scope.selectedRoot);

    $scope.roots.length = roots.length;
    roots.forEach(function (item, i) {
      $scope.roots[i] = {
        label: item,
        value: item
      };
    });
    if (roots.length === 0) {
      $scope.selectedRoot = null;
    } else if (!$scope.selectedRoot) {
      $scope.selectedRoot = $scope.roots[0].value;
    }
  };
  appContext.watchPoll(updateTree);
});