portainer/app/docker/components/datatables/volumes-datatable/volumesDatatableController.js

angular.module('portainer.docker')
.controller('VolumesDatatableController', ['$scope', '$controller', 'DatatableService',
function ($scope, $controller, DatatableService) {

  angular.extend(this, $controller('GenericDatatableController', {$scope: $scope}));

  var ctrl = this;

  this.filters = {
    state: {
      open: false,
      enabled: false,
      showUsedVolumes: true,
      showUnusedVolumes: true
    }
  };

  this.applyFilters = function(value) {
    var volume = value;
    var filters = ctrl.filters;
    if ((volume.dangling && filters.state.showUnusedVolumes)
      || (!volume.dangling && filters.state.showUsedVolumes)) {
      return true;
    }
    return false;
  };

  this.onstateFilterChange = function() {
    var filters = this.filters.state;
    var filtered = false;
    if (!filters.showUsedVolumes || !filters.showUnusedVolumes) {
      filtered = true;
    }
    this.filters.state.enabled = filtered;
    DatatableService.setDataTableFilters(this.tableKey, this.filters);
  };

  this.$onInit = function() {
    this.setDefaults();
    this.prepareTableFromDataset();

    var storedOrder = DatatableService.getDataTableOrder(this.tableKey);
    if (storedOrder !== null) {
      this.state.reverseOrder = storedOrder.reverse;
      this.state.orderBy = storedOrder.orderBy;
    }

    var textFilter = DatatableService.getDataTableTextFilters(this.tableKey);
    if (textFilter !== null) {
      this.state.textFilter = textFilter;
      this.onTextFilterChange();
    }

    var storedFilters = DatatableService.getDataTableFilters(this.tableKey);
    if (storedFilters !== null) {
      this.filters = storedFilters;
    }
    if (this.filters && this.filters.state) {
      this.filters.state.open = false;
    }
  };
}]);