spark.ko.js 22 KB

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  1. // Licensed to Cloudera, Inc. under one
  2. // or more contributor license agreements. See the NOTICE file
  3. // distributed with this work for additional information
  4. // regarding copyright ownership. Cloudera, Inc. licenses this file
  5. // to you under the Apache License, Version 2.0 (the
  6. // "License"); you may not use this file except in compliance
  7. // with the License. You may obtain a copy of the License at
  8. //
  9. // http://www.apache.org/licenses/LICENSE-2.0
  10. //
  11. // Unless required by applicable law or agreed to in writing, software
  12. // distributed under the License is distributed on an "AS IS" BASIS,
  13. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14. // See the License for the specific language governing permissions and
  15. // limitations under the License.
  16. var Result = function (snippet, result) {
  17. var self = this;
  18. self.id = ko.observable(typeof result.id != "undefined" && result.id != null ? result.id : UUID());
  19. self.type = ko.observable(typeof result.type != "undefined" && result.type != null ? result.type : 'table');
  20. self.hasResultset = ko.observable(typeof result.hasResultset != "undefined" && result.hasResultset != null ? result.hasResultset : true);
  21. self.handle = ko.observable({});
  22. self.meta = ko.observableArray(typeof result.meta != "undefined" && result.meta != null ? result.meta : []);
  23. self.cleanedMeta = ko.computed(function(){
  24. return ko.utils.arrayFilter(self.meta(), function(item) {
  25. return item.name != ''
  26. });
  27. });
  28. self.fetchedOnce = ko.observable(typeof result.fetchedOnce != "undefined" && result.fetchedOnce != null ? result.fetchedOnce : false);
  29. self.startTime = ko.observable(typeof result.startTime != "undefined" && result.startTime != null ? new Date(result.startTime) : new Date());
  30. self.endTime = ko.observable(typeof result.endTime != "undefined" && result.endTime != null ? new Date(result.endTime) : new Date());
  31. self.executionTime = ko.computed(function() {
  32. return self.endTime().getTime() - self.startTime().getTime();
  33. });
  34. function isNumericColumn(type) {
  35. return $.inArray(type, ['TINYINT_TYPE', 'SMALLINT_TYPE', 'INT_TYPE', 'BIGINT_TYPE', 'FLOAT_TYPE', 'DOUBLE_TYPE', 'DECIMAL_TYPE', 'TIMESTAMP_TYPE', 'DATE_TYPE']) > -1;
  36. }
  37. function isDateTimeColumn(type) {
  38. return $.inArray(type, ['TIMESTAMP_TYPE', 'DATE_TYPE']) > -1;
  39. }
  40. function isStringColumn(type) {
  41. return ! isNumericColumn(type) && ! isDateTimeColumn(type);
  42. }
  43. self.cleanedNumericMeta = ko.computed(function(){
  44. return ko.utils.arrayFilter(self.meta(), function(item) {
  45. return item.name != '' && isNumericColumn(item.type)
  46. });
  47. });
  48. self.cleanedStringMeta = ko.computed(function(){
  49. return ko.utils.arrayFilter(self.meta(), function(item) {
  50. return item.name != '' && isStringColumn(item.type)
  51. });
  52. });
  53. self.cleanedDateTimeMeta = ko.computed(function(){
  54. return ko.utils.arrayFilter(self.meta(), function(item) {
  55. return item.name != '' && isDateTimeColumn(item.type)
  56. });
  57. });
  58. self.data = ko.observableArray(typeof result.data != "undefined" && result.data != null ? result.data : []);
  59. self.data.extend({ rateLimit: 50 });
  60. self.logs = ko.observable('');
  61. self.errors = ko.observable('');
  62. self.hasSomeResults = ko.computed(function(){
  63. return self.hasResultset() && self.data().length > 0; // status() == 'available'
  64. });
  65. if (typeof result.handle != "undefined" && result.handle != null) {
  66. $.each(result.handle, function(key, val) {
  67. self.handle()[key] = val;
  68. });
  69. }
  70. self.clear = function() {
  71. $.each(self.handle, function(key, val) {
  72. delete self.handle()[key];
  73. });
  74. self.fetchedOnce(false);
  75. self.data.removeAll();
  76. self.logs('');
  77. self.errors('');
  78. self.startTime(new Date());
  79. self.endTime(new Date());
  80. };
  81. }
  82. var TYPE_EDITOR_MAP = {
  83. 'hive': 'text/x-hiveql',
  84. 'impala': 'text/x-impalaql',
  85. 'python': 'text/x-python',
  86. 'scala': 'text/x-scala',
  87. 'pig': 'text/x-pig'
  88. }
  89. var Snippet = function (vm, notebook, snippet) {
  90. var self = this;
  91. self.id = ko.observable(typeof snippet.id != "undefined" && snippet.id != null ? snippet.id : UUID());
  92. self.name = ko.observable(typeof snippet.name != "undefined" && snippet.name != null ? snippet.name : '');
  93. self.type = ko.observable(typeof snippet.type != "undefined" && snippet.type != null ? snippet.type : "hive");
  94. self.editorMode = ko.observable(TYPE_EDITOR_MAP[self.type()]);
  95. self.statement_raw = ko.observable(typeof snippet.statement_raw != "undefined" && snippet.statement_raw != null ? snippet.statement_raw : vm.snippetPlaceholders[self.type()]);
  96. self.codemirrorSize = ko.observable(typeof snippet.codemirrorSize != "undefined" && snippet.codemirrorSize != null ? snippet.codemirrorSize : 100);
  97. // self.statement_raw.extend({ rateLimit: 150 }); // Should prevent lag from typing but currently send the old query when using the key shortcut
  98. self.status = ko.observable(typeof snippet.status != "undefined" && snippet.status != null ? snippet.status : 'loading');
  99. self.settings = ko.mapping.fromJS(typeof snippet.settings != "undefined" && snippet.settings != null ? snippet.settings : {});
  100. self.variables = ko.observableArray([]);
  101. self.variableNames = ko.computed(function () {
  102. var matches = [];
  103. var myRegexp = /(?:[^\\]\$)([^\d'" ]\w*)/g;
  104. var match = myRegexp.exec(self.statement_raw());
  105. while (match != null) {
  106. matches.push(match[1]);
  107. match = myRegexp.exec(self.statement());
  108. }
  109. return matches;
  110. });
  111. self.variableNames.extend({ rateLimit: 150 });
  112. self.variableNames.subscribe(function (newVal) {
  113. var toDelete = [];
  114. var toAdd = [];
  115. $.each(newVal, function (key, name) {
  116. var match = ko.utils.arrayFirst(self.variables(), function (_var) {
  117. return _var.name() == name;
  118. });
  119. if (! match) {
  120. toAdd.push(name);
  121. }
  122. });
  123. $.each(self.variables(), function (key, _var) {
  124. var match = ko.utils.arrayFirst(newVal, function (name) {
  125. return _var.name() == name;
  126. });
  127. if (! match) {
  128. toDelete.push(_var);
  129. }
  130. });
  131. $.each(toDelete, function (index, item) {
  132. self.variables.remove(item);
  133. });
  134. $.each(toAdd, function (index, item) {
  135. self.variables.push(ko.mapping.fromJS({'name': item, 'value': ''}));
  136. });
  137. self.variables.sort(function (left, right) {
  138. var leftIndex = newVal.indexOf(left.name());
  139. var rightIndex = newVal.indexOf(right.name());
  140. return leftIndex == rightIndex ? 0 : (leftIndex < rightIndex ? -1 : 1);
  141. });
  142. });
  143. self.statement = ko.computed(function () {
  144. var statement = self.statement_raw();
  145. $.each(self.variables(), function (index, variable) {
  146. statement = statement.replace(RegExp("([^\\\\])\\$" + variable.name(), "g"), "$1" + variable.value());
  147. });
  148. return statement;
  149. });
  150. self.result = new Result(snippet, snippet.result);
  151. self.showGrid = ko.observable(typeof snippet.showGrid != "undefined" && snippet.showGrid != null ? snippet.showGrid : true);
  152. self.showChart = ko.observable(typeof snippet.showChart != "undefined" && snippet.showChart != null ? snippet.showChart : false);
  153. self.showLogs = ko.observable(typeof snippet.showLogs != "undefined" && snippet.showLogs != null ? snippet.showLogs : false);
  154. self.progress = ko.observable(typeof snippet.progress != "undefined" && snippet.progress != null ? snippet.progress : 0);
  155. self.progress.subscribe(function (val){
  156. $(document).trigger("progress", {data: val, snippet: self});
  157. });
  158. self.showGrid.subscribe(function (val){
  159. if (val){
  160. self.showChart(false);
  161. $(document).trigger("gridShown", self);
  162. }
  163. });
  164. self.showChart.subscribe(function (val){
  165. if (val){
  166. self.showGrid(false);
  167. self.isLeftPanelVisible(true);
  168. $(document).trigger("forceChartDraw", self);
  169. $(document).trigger("chartShown", self);
  170. }
  171. });
  172. self.showLogs.subscribe(function (val){
  173. if (val){
  174. self.getLogs();
  175. }
  176. });
  177. self.size = ko.observable(typeof snippet.size != "undefined" && snippet.size != null ? snippet.size : 12).extend({ numeric: 0 });
  178. self.offset = ko.observable(typeof snippet.offset != "undefined" && snippet.offset != null ? snippet.offset : 0).extend({ numeric: 0 });
  179. self.isLoading = ko.computed(function(){
  180. return self.status() == "loading";
  181. });
  182. self.klass = ko.computed(function () {
  183. return "snippet card card-widget";
  184. });
  185. self.editorKlass = ko.computed(function(){
  186. return "editor span" + self.size() + (self.offset() * 1 > 0 ? " offset" + self.offset() : "");
  187. });
  188. self.resultsKlass = ko.computed(function(){
  189. return "results " + self.type();
  190. });
  191. self.errorsKlass = ko.computed(function(){
  192. return self.resultsKlass + " alert alert-error";
  193. });
  194. self.chartType = ko.observable(typeof snippet.chartType != "undefined" && snippet.chartType != null ? snippet.chartType : ko.HUE_CHARTS.TYPES.BARCHART);
  195. self.chartSorting = ko.observable(typeof snippet.chartSorting != "undefined" && snippet.chartSorting != null ? snippet.chartSorting : "none");
  196. self.chartScatterGroup = ko.observable(typeof snippet.chartScatterGroup != "undefined" && snippet.chartScatterGroup != null ? snippet.chartScatterGroup : null);
  197. self.chartScatterSize = ko.observable(typeof snippet.chartScatterSize != "undefined" && snippet.chartScatterSize != null ? snippet.chartScatterSize : null);
  198. self.chartX = ko.observable(typeof snippet.chartX != "undefined" && snippet.chartX != null ? snippet.chartX : null);
  199. self.chartYSingle = ko.observable(typeof snippet.chartYSingle != "undefined" && snippet.chartYSingle != null ? snippet.chartYSingle : null);
  200. self.chartYMulti = ko.observableArray(typeof snippet.chartYMulti != "undefined" && snippet.chartYMulti != null ? snippet.chartYMulti : []);
  201. self.chartData = ko.observableArray(typeof snippet.chartData != "undefined" && snippet.chartData != null ? snippet.chartData : []);
  202. self.chartMapLabel = ko.observable(typeof snippet.chartMapLabel != "undefined" && snippet.chartMapLabel != null ? snippet.chartMapLabel : null);
  203. self.chartType.subscribe(function(val){
  204. $(document).trigger("forceChartDraw", self);
  205. });
  206. self.tempChartOptions = {};
  207. self.isLeftPanelVisible = ko.observable(typeof snippet.isLeftPanelVisible != "undefined" && snippet.isLeftPanelVisible != null ? snippet.isLeftPanelVisible : false);
  208. self.toggleLeftPanel = function () {
  209. self.isLeftPanelVisible(! self.isLeftPanelVisible());
  210. $(document).trigger("toggleLeftPanel", self);
  211. };
  212. self.expand = function () {
  213. self.size(self.size() + 1);
  214. $("#snippet_" + self.id()).trigger("resize");
  215. }
  216. self.compress = function () {
  217. self.size(self.size() - 1);
  218. $("#snippet_" + self.id()).trigger("resize");
  219. }
  220. self.moveLeft = function () {
  221. self.offset(self.offset() - 1);
  222. }
  223. self.moveRight = function () {
  224. self.offset(self.offset() + 1);
  225. }
  226. self.remove = function (notebook, snippet) {
  227. notebook.snippets.remove(snippet);
  228. }
  229. self.checkStatusTimeout = null;
  230. self._ajax_error = function(data, callback) {
  231. if (data.status == -2) {
  232. self.create_session(callback);
  233. }
  234. else if (data.status == -3) {
  235. self.status('expired');
  236. }
  237. else if (data.status == 1) {
  238. self.status('failed');
  239. self.result.errors(data.message);
  240. } else {
  241. $(document).trigger("error", data.message);
  242. self.status('failed');
  243. }
  244. };
  245. self.create_session = function(callback) {
  246. self.status('loading');
  247. $.post("/spark/api/create_session", {
  248. notebook: ko.mapping.toJSON(notebook),
  249. snippet: ko.mapping.toJSON(self)
  250. }, function (data) {
  251. if (data.status == 0) {
  252. notebook.addSession(ko.mapping.fromJS(data.session));
  253. self.status('ready');
  254. if (callback) {
  255. setTimeout(callback, 500);
  256. }
  257. }
  258. else {
  259. self.status('failed');
  260. $(document).trigger("error", data.message);
  261. }
  262. }).fail(function (xhr, textStatus, errorThrown) {
  263. $(document).trigger("error", xhr.responseText);
  264. });
  265. };
  266. self.execute = function () {
  267. $(document).trigger("executeStarted", self);
  268. $(".jHueNotify").hide();
  269. logGA('/execute/' + self.type());
  270. if (self.result.fetchedOnce()) {
  271. self.close();
  272. }
  273. self.result.clear();
  274. self.progress(0);
  275. self.status('running');
  276. $.post("/spark/api/execute", {
  277. notebook: ko.mapping.toJSON(notebook),
  278. snippet: ko.mapping.toJSON(self)
  279. }, function (data) {
  280. if (data.status == 0) {
  281. $.each(data.handle, function (key, val) {
  282. self.result.handle()[key] = val;
  283. });
  284. self.result.hasResultset(data.handle.has_result_set);
  285. self.checkStatus();
  286. } else {
  287. self._ajax_error(data, self.execute);
  288. }
  289. }).fail(function (xhr, textStatus, errorThrown) {
  290. $(document).trigger("error", xhr.responseText);
  291. self.status('failed');
  292. });
  293. };
  294. self.fetchResult = function(rows, startOver) {
  295. if (typeof startOver == "undefined") {
  296. startOver = true;
  297. }
  298. self.fetchResultData(rows, startOver);
  299. //self.fetchResultMetadata(rows);
  300. };
  301. self.fetchResultData = function(rows, startOver) {
  302. $.post("/spark/api/fetch_result_data", {
  303. notebook: ko.mapping.toJSON(notebook),
  304. snippet: ko.mapping.toJSON(self),
  305. rows: rows,
  306. startOver: startOver
  307. }, function (data) {
  308. if (data.status == 0) {
  309. rows -= data.result.data.length;
  310. var _initialIndex = self.result.data().length;
  311. var _tempData = [];
  312. $.each(data.result.data, function (index, row) {
  313. row.unshift(_initialIndex + index);
  314. self.result.data.push(row);
  315. _tempData.push(row);
  316. });
  317. $(document).trigger("renderData", {data: _tempData, snippet: self, initial: _initialIndex == 0});
  318. if (! self.result.fetchedOnce()) {
  319. data.result.meta.unshift({type: "INT_TYPE", name: "", comment: null});
  320. self.result.meta(data.result.meta);
  321. self.result.type(data.result.type);
  322. self.result.fetchedOnce(true);
  323. }
  324. if (data.result.has_more && rows > 0) {
  325. setTimeout(function () {
  326. self.fetchResultData(rows, false);
  327. }, 500);
  328. }
  329. } else {
  330. self._ajax_error(data);
  331. $(document).trigger("renderDataError", {snippet: self});
  332. }
  333. }).fail(function (xhr, textStatus, errorThrown) {
  334. $(document).trigger("error", xhr.responseText);
  335. });
  336. };
  337. self.fetchResultMetadata = function () {
  338. $.post("/spark/api/fetch_result_metadata", {
  339. notebook: ko.mapping.toJSON(notebook),
  340. snippet: ko.mapping.toJSON(self),
  341. }, function (data) {
  342. if (data.status == 0) {
  343. self.result.meta(data.result.meta);
  344. } else {
  345. $(document).trigger("error", data.message);
  346. }
  347. }).fail(function (xhr, textStatus, errorThrown) {
  348. $(document).trigger("error", xhr.responseText);
  349. self.status('failed');
  350. });
  351. };
  352. self.checkStatus = function() {
  353. $.post("/spark/api/check_status", {
  354. notebook: ko.mapping.toJSON(notebook),
  355. snippet: ko.mapping.toJSON(self)
  356. }, function (data) {
  357. if (data.status == 0) {
  358. self.status(data.query_status.status);
  359. self.getLogs();
  360. if (self.status() == 'running') {
  361. self.result.endTime(new Date());
  362. self.checkStatusTimeout = setTimeout(self.checkStatus, 1000);
  363. }
  364. else if (self.status() == 'available') {
  365. self.fetchResult(100);
  366. self.progress(100);
  367. }
  368. } else {
  369. self._ajax_error(data);
  370. }
  371. }).fail(function (xhr, textStatus, errorThrown) {
  372. $(document).trigger("error", xhr.responseText);
  373. self.status('failed');
  374. });
  375. };
  376. self.cancel = function() {
  377. if (self.checkStatusTimeout != null) {
  378. clearTimeout(self.checkStatusTimeout);
  379. self.checkStatusTimeout = null;
  380. }
  381. $.post("/spark/api/cancel_statement", {
  382. notebook: ko.mapping.toJSON(notebook),
  383. snippet: ko.mapping.toJSON(self)
  384. }, function (data) {
  385. if (data.status == 0) {
  386. self.status('canceled');
  387. } else {
  388. self._ajax_error(data);
  389. }
  390. }).fail(function (xhr, textStatus, errorThrown) {
  391. $(document).trigger("error", xhr.responseText);
  392. self.status('failed');
  393. });
  394. };
  395. self.close = function() {
  396. if (self.checkStatusTimeout != null) {
  397. clearTimeout(self.checkStatusTimeout);
  398. self.checkStatusTimeout = null;
  399. }
  400. $.post("/spark/api/close_statement", {
  401. notebook: ko.mapping.toJSON(notebook),
  402. snippet: ko.mapping.toJSON(self)
  403. }, function (data) {
  404. if (data.status == 0) {
  405. // self.status('closed'); // Keep as 'running' as currently it happens before running a new query
  406. } else {
  407. self._ajax_error(data);
  408. }
  409. }).fail(function (xhr, textStatus, errorThrown) {
  410. $(document).trigger("error", xhr.responseText);
  411. self.status('failed');
  412. });
  413. };
  414. self.getLogs = function() {
  415. $.post("/spark/api/get_logs", {
  416. notebook: ko.mapping.toJSON(notebook),
  417. snippet: ko.mapping.toJSON(self)
  418. }, function (data) {
  419. if (data.status == 0) {
  420. self.result.logs(data.logs); // Way to append?
  421. self.progress(data.progress);
  422. } else {
  423. self._ajax_error(data);
  424. }
  425. }).fail(function (xhr, textStatus, errorThrown) {
  426. $(document).trigger("error", xhr.responseText);
  427. self.status('failed');
  428. });
  429. };
  430. self.init = function() {
  431. if (self.status() == 'running') {
  432. self.checkStatus();
  433. }
  434. if (self.status() == 'loading') {
  435. self.status('failed');
  436. self.progress(0);
  437. }
  438. if (self.status() != 'loading' && self.status() != 'ready') {
  439. self.getLogs();
  440. }
  441. };
  442. }
  443. var Notebook = function (vm, notebook) {
  444. var self = this;
  445. self.id = ko.observable(typeof notebook.id != "undefined" && notebook.id != null ? notebook.id : null);
  446. self.uuid = ko.observable(typeof notebook.uuid != "undefined" && notebook.uuid != null ? notebook.uuid : UUID());
  447. self.name = ko.observable(typeof notebook.name != "undefined" && notebook.name != null ? notebook.name : 'My Notebook');
  448. self.snippets = ko.observableArray();
  449. self.selectedSnippet = ko.observable(vm.availableSnippets()[0].type());
  450. self.sessions = ko.mapping.fromJS(typeof notebook.sessions != "undefined" && notebook.sessions != null ? notebook.sessions : []);
  451. self.getSession = function(session_type) {
  452. var _s = null;
  453. $.each(self.sessions(), function (index, s) {
  454. if (s.type() == session_type) {
  455. _s = s;
  456. return false;
  457. }
  458. });
  459. return _s;
  460. };
  461. self.addSession = function(session) {
  462. var toRemove = []
  463. $.each(self.sessions(), function (index, s) {
  464. if (s.type() == session.type()) {
  465. toRemove.push(s);
  466. }
  467. });
  468. $.each(toRemove, function (index, s) {
  469. self.sessions.remove(s);
  470. });
  471. self.sessions.push(session);
  472. };
  473. self.addSnippet = function(snippet) {
  474. var _snippet = new Snippet(vm, self, snippet);
  475. self.snippets.push(_snippet);
  476. if (self.getSession(_snippet.type()) == null) {
  477. _snippet.create_session();
  478. }
  479. _snippet.init();
  480. };
  481. self.newSnippet = function() {
  482. var _snippet = new Snippet(vm, self, {type: self.selectedSnippet(), result: {}});
  483. self.snippets.push(_snippet);
  484. if (self.getSession(self.selectedSnippet()) == null) {
  485. _snippet.create_session();
  486. }
  487. else {
  488. _snippet.status('ready');
  489. }
  490. $(document).trigger("snippetAdded", _snippet);
  491. };
  492. if (notebook.snippets) {
  493. $.each(notebook.snippets, function(index, snippet) {
  494. self.addSnippet(snippet);
  495. });
  496. }
  497. self.save = function () {
  498. $.post("/spark/api/notebook/save", {
  499. "notebook": ko.mapping.toJSON(self)
  500. }, function (data) {
  501. if (data.status == 0) {
  502. self.id(data.id);
  503. $(document).trigger("info", data.message);
  504. if (window.location.search.indexOf("notebook") == -1) {
  505. window.location.hash = '#notebook=' + data.id;
  506. }
  507. }
  508. else {
  509. $(document).trigger("error", data.message);
  510. }
  511. }).fail(function (xhr, textStatus, errorThrown) {
  512. $(document).trigger("error", xhr.responseText);
  513. });
  514. };
  515. self.close = function () {
  516. if (self.id() != null) {
  517. $.post("/spark/api/notebook/close", {
  518. "notebook": ko.mapping.toJSON(self)
  519. });
  520. }
  521. };
  522. self.clearResults = function () {
  523. $.each(self.snippets(), function(index, snippet) {
  524. snippet.result.clear();
  525. snippet.status('ready');
  526. });
  527. };
  528. }
  529. function EditorViewModel(notebooks, options) {
  530. var self = this;
  531. self.notebooks = ko.observableArray();
  532. self.selectedNotebook = ko.observable();
  533. self.isEditing = ko.observable(false);
  534. self.isEditing.subscribe(function(newVal){
  535. $(document).trigger("editingToggled");
  536. });
  537. self.toggleEditing = function () {
  538. self.isEditing(! self.isEditing());
  539. };
  540. self.isAssistAvailable = ko.observable(true);
  541. self.isAssistVisible = ko.observable(options.assistVisible);
  542. self.toggleAssist = function () {
  543. self.isAssistVisible(! self.isAssistVisible());
  544. $(document).trigger("toggleAssist");
  545. };
  546. self.assistContent = ko.observable();
  547. self.assistSelectedMainObject = ko.observable();
  548. self.availableSnippets = ko.mapping.fromJS(options.languages);
  549. self.snippetPlaceholders = options.snippet_placeholders;
  550. self.init = function() {
  551. $.each(notebooks, function(index, notebook) {
  552. self.loadNotebook(notebook);
  553. if (self.selectedNotebook() == null){
  554. self.selectedNotebook(self.notebooks()[0]);
  555. }
  556. });
  557. };
  558. self.loadNotebook = function(notebook) {
  559. var _n = new Notebook(self, notebook);
  560. self.notebooks.push(_n);
  561. if (_n.snippets().length > 0){
  562. _n.selectedSnippet(_n.snippets()[_n.snippets().length - 1].type());
  563. }
  564. };
  565. self.newNotebook = function() {
  566. self.notebooks.push(new Notebook(self, {}));
  567. self.selectedNotebook(self.notebooks()[self.notebooks().length - 1]);
  568. };
  569. self.saveNotebook = function() {
  570. self.selectedNotebook().save();
  571. };
  572. }
  573. function logGA(page) {
  574. if (typeof trackOnGA == 'function') {
  575. trackOnGA('editor/' + page);
  576. }
  577. }