Introduce dashboard landing page

Still TODO:
 - Add clickable breadcrumbs
 - Remove New and Open top nav options

src/core_plugins/kibana/public/dashboard/dashboard.js

@@ -0,0 +1,314 @@
+import _ from 'lodash';
+import angular from 'angular';
+import chrome from 'ui/chrome';
+import uiModules from 'ui/modules';
+import uiRoutes from 'ui/routes';
+
+import 'plugins/kibana/dashboard/grid';
+import 'plugins/kibana/dashboard/panel/panel';
+import 'plugins/kibana/dashboard/saved_dashboard/saved_dashboards';
+import 'plugins/kibana/dashboard/styles/index.less';
+
+import dashboardTemplate from 'plugins/kibana/dashboard/dashboard.html';
+import FilterBarQueryFilterProvider from 'ui/filter_bar/query_filter';
+import DocTitleProvider from 'ui/doc_title';
+import stateMonitorFactory  from 'ui/state_management/state_monitor_factory';
+import { savedDashboardRegister } from 'plugins/kibana/dashboard/saved_dashboard/saved_dashboard_register';
+import { getTopNavConfig } from './top_nav/get_top_nav_config';
+import { createPanelState } from 'plugins/kibana/dashboard/panel/panel_state';
+import { DashboardConstants } from './dashboard_constants';
+import UtilsBrushEventProvider from 'ui/utils/brush_event';
+import FilterBarFilterBarClickHandlerProvider from 'ui/filter_bar/filter_bar_click_handler';
+
+const app = uiModules.get('app/dashboard', [
+  'elasticsearch',
+  'ngRoute',
+  'kibana/courier',
+  'kibana/config',
+  'kibana/notify',
+  'kibana/typeahead'
+]);
+
+uiRoutes
+  .when('/dashboard/create', {
+    template: dashboardTemplate,
+    resolve: {
+      dash: function (savedDashboards, courier) {
+        return savedDashboards.get()
+          .catch(courier.redirectWhenMissing({
+            'dashboard': '/dashboard'
+          }));
+      }
+    }
+  })
+  .when('/dashboard/:id', {
+    template: dashboardTemplate,
+    resolve: {
+      dash: function (savedDashboards, Notifier, $route, $location, courier) {
+        return savedDashboards.get($route.current.params.id)
+          .catch(courier.redirectWhenMissing({
+            'dashboard' : '/dashboard'
+          }));
+      }
+    }
+  });
+
+app.directive('dashboardApp', function (Notifier, courier, AppState, timefilter, kbnUrl, Private) {
+  const brushEvent = Private(UtilsBrushEventProvider);
+  const filterBarClickHandler = Private(FilterBarFilterBarClickHandlerProvider);
+
+  return {
+    restrict: 'E',
+    controllerAs: 'dashboardApp',
+    controller: function ($scope, $rootScope, $route, $routeParams, $location, Private, getAppState) {
+
+      const queryFilter = Private(FilterBarQueryFilterProvider);
+
+      const notify = new Notifier({
+        location: 'Dashboard'
+      });
+
+      const dash = $scope.dash = $route.current.locals.dash;
+
+      if (dash.timeRestore && dash.timeTo && dash.timeFrom && !getAppState.previouslyStored()) {
+        timefilter.time.to = dash.timeTo;
+        timefilter.time.from = dash.timeFrom;
+        if (dash.refreshInterval) {
+          timefilter.refreshInterval = dash.refreshInterval;
+        }
+      }
+
+      const matchQueryFilter = function (filter) {
+        return filter.query && filter.query.query_string && !filter.meta;
+      };
+
+      const extractQueryFromFilters = function (filters) {
+        const filter = _.find(filters, matchQueryFilter);
+        if (filter) return filter.query;
+      };
+
+      const stateDefaults = {
+        title: dash.title,
+        panels: dash.panelsJSON ? JSON.parse(dash.panelsJSON) : [],
+        options: dash.optionsJSON ? JSON.parse(dash.optionsJSON) : {},
+        uiState: dash.uiStateJSON ? JSON.parse(dash.uiStateJSON) : {},
+        query: extractQueryFromFilters(dash.searchSource.getOwn('filter')) || { query_string: { query: '*' } },
+        filters: _.reject(dash.searchSource.getOwn('filter'), matchQueryFilter),
+      };
+
+      let stateMonitor;
+      const $state = $scope.state = new AppState(stateDefaults);
+      const $uiState = $scope.uiState = $state.makeStateful('uiState');
+      const $appStatus = $scope.appStatus = this.appStatus = {};
+
+      $scope.$watchCollection('state.options', function (newVal, oldVal) {
+        if (!angular.equals(newVal, oldVal)) $state.save();
+      });
+
+      $scope.$watch('state.options.darkTheme', setDarkTheme);
+
+      $scope.topNavMenu = getTopNavConfig(kbnUrl);
+
+      $scope.refresh = _.bindKey(courier, 'fetch');
+
+      timefilter.enabled = true;
+      $scope.timefilter = timefilter;
+      $scope.$listen(timefilter, 'fetch', $scope.refresh);
+
+      courier.setRootSearchSource(dash.searchSource);
+
+      const docTitle = Private(DocTitleProvider);
+
+      function init() {
+        updateQueryOnRootSource();
+
+        if (dash.id) {
+          docTitle.change(dash.title);
+        }
+
+        initPanelIndexes();
+
+        // watch for state changes and update the appStatus.dirty value
+        stateMonitor = stateMonitorFactory.create($state, stateDefaults);
+        stateMonitor.onChange((status) => {
+          $appStatus.dirty = status.dirty;
+        });
+
+        $scope.$on('$destroy', () => {
+          stateMonitor.destroy();
+          dash.destroy();
+
+          // Remove dark theme to keep it from affecting the appearance of other apps.
+          setDarkTheme(false);
+        });
+
+        $scope.$emit('application.load');
+      }
+
+      function initPanelIndexes() {
+        // find the largest panelIndex in all the panels
+        let maxIndex = getMaxPanelIndex();
+
+        // ensure that all panels have a panelIndex
+        $scope.state.panels.forEach(function (panel) {
+          if (!panel.panelIndex) {
+            panel.panelIndex = maxIndex++;
+          }
+        });
+      }
+
+      function getMaxPanelIndex() {
+        let maxId = $scope.state.panels.reduce(function (id, panel) {
+          return Math.max(id, panel.panelIndex || id);
+        }, 0);
+        return ++maxId;
+      }
+
+      function updateQueryOnRootSource() {
+        const filters = queryFilter.getFilters();
+        if ($state.query) {
+          dash.searchSource.set('filter', _.union(filters, [{
+            query: $state.query
+          }]));
+        } else {
+          dash.searchSource.set('filter', filters);
+        }
+      }
+
+      function setDarkTheme(enabled) {
+        const theme = Boolean(enabled) ? 'theme-dark' : 'theme-light';
+        chrome.removeApplicationClass(['theme-dark', 'theme-light']);
+        chrome.addApplicationClass(theme);
+      }
+
+
+      /**
+       * Creates a child ui state for the panel. It's passed the ui state to use, but needs to
+       * be generated from the parent (why, I don't know yet).
+       * @param path {String} - the unique path for this ui state.
+       * @param uiState {Object} - the uiState for the child.
+       * @returns {Object}
+       */
+      $scope.createChildUiState = function createChildUiState(path, uiState) {
+        return $scope.uiState.createChild(path, uiState, true);
+      };
+
+      $scope.brushEvent = brushEvent;
+      $scope.filterBarClickHandler = filterBarClickHandler;
+      $scope.expandedPanel = null;
+      $scope.hasExpandedPanel = () => $scope.expandedPanel !== null;
+      $scope.toggleExpandPanel = (panelIndex) => {
+        if ($scope.expandedPanel && $scope.expandedPanel.panelIndex === panelIndex) {
+          $scope.expandedPanel = null;
+        } else {
+          $scope.expandedPanel =
+            $scope.state.panels.find((panel) => panel.panelIndex === panelIndex);
+        }
+      };
+
+      // update root source when filters update
+      $scope.$listen(queryFilter, 'update', function () {
+        updateQueryOnRootSource();
+        $state.save();
+      });
+
+      // update data when filters fire fetch event
+      $scope.$listen(queryFilter, 'fetch', $scope.refresh);
+
+      $scope.getDashTitle = function () {
+        return dash.lastSavedTitle || `${dash.title} (unsaved)`;
+      };
+
+      $scope.newDashboard = function () {
+        kbnUrl.change('/dashboard', {});
+      };
+
+      $scope.filterResults = function () {
+        updateQueryOnRootSource();
+        $state.save();
+        $scope.refresh();
+      };
+
+      $scope.save = function () {
+        $state.save();
+
+        const timeRestoreObj = _.pick(timefilter.refreshInterval, ['display', 'pause', 'section', 'value']);
+
+        dash.panelsJSON = angular.toJson($state.panels);
+        dash.uiStateJSON = angular.toJson($uiState.getChanges());
+        dash.timeFrom = dash.timeRestore ? timefilter.time.from : undefined;
+        dash.timeTo = dash.timeRestore ? timefilter.time.to : undefined;
+        dash.refreshInterval = dash.timeRestore ? timeRestoreObj : undefined;
+        dash.optionsJSON = angular.toJson($state.options);
+
+        dash.save()
+          .then(function (id) {
+            stateMonitor.setInitialState($state.toJSON());
+            $scope.kbnTopNav.close('save');
+            if (id) {
+              notify.info('Saved Dashboard as "' + dash.title + '"');
+              if (dash.id !== $routeParams.id) {
+                kbnUrl.change('/dashboard/{{id}}', { id: dash.id });
+              } else {
+                docTitle.change(dash.lastSavedTitle);
+              }
+            }
+          })
+          .catch(notify.fatal);
+      };
+
+      let pendingVis = _.size($state.panels);
+      $scope.$on('ready:vis', function () {
+        if (pendingVis) pendingVis--;
+        if (pendingVis === 0) {
+          $state.save();
+          $scope.refresh();
+        }
+      });
+
+      // listen for notifications from the grid component that changes have
+      // been made, rather than watching the panels deeply
+      $scope.$on('change:vis', function () {
+        $state.save();
+      });
+
+      // called by the saved-object-finder when a user clicks a vis
+      $scope.addVis = function (hit) {
+        pendingVis++;
+        $state.panels.push(createPanelState(hit.id, 'visualization', getMaxPanelIndex()));
+      };
+
+      if ($route.current.params && $route.current.params[DashboardConstants.NEW_VISUALIZATION_ID_PARAM]) {
+        $scope.addVis({ id: $route.current.params[DashboardConstants.NEW_VISUALIZATION_ID_PARAM] });
+        kbnUrl.removeParam(DashboardConstants.ADD_VISUALIZATION_TO_DASHBOARD_MODE_PARAM);
+        kbnUrl.removeParam(DashboardConstants.NEW_VISUALIZATION_ID_PARAM);
+      }
+
+      const addNewVis = function addNewVis() {
+        kbnUrl.change(`/visualize?${DashboardConstants.ADD_VISUALIZATION_TO_DASHBOARD_MODE_PARAM}`);
+      };
+
+      $scope.addSearch = function (hit) {
+        pendingVis++;
+        $state.panels.push(createPanelState(hit.id, 'search', getMaxPanelIndex()));
+      };
+
+      // Setup configurable values for config directive, after objects are initialized
+      $scope.opts = {
+        dashboard: dash,
+        ui: $state.options,
+        save: $scope.save,
+        addVis: $scope.addVis,
+        addNewVis,
+        addSearch: $scope.addSearch,
+        timefilter: $scope.timefilter
+      };
+
+      init();
+
+      $scope.showEditHelpText = () => {
+        return !$scope.state.panels.length;
+      };
+    }
+  };
+});