ko.layout.js 9.1 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327
  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. function s4() {
  17. return Math.floor((1 + Math.random()) * 0x10000)
  18. .toString(16)
  19. .substring(1);
  20. }
  21. function UUID() {
  22. return s4() + s4() + '-' + s4() + '-' + s4() + '-' + s4() + '-' + s4() + s4() + s4();
  23. }
  24. var Column = function (size, rows) {
  25. var self = this;
  26. self.id = ko.observable(UUID());
  27. self.size = ko.observable(size);
  28. self.rows = ko.observableArray(rows);
  29. self.oozieStartRow = ko.computed(function () {
  30. var _row = null;
  31. ko.utils.arrayForEach(self.rows(), function (row) {
  32. if ((row.widgets().length > 0 && row.widgets()[0].id() == "3f107997-04cc-8733-60a9-a4bb62cebffc")) {
  33. _row = row;
  34. }
  35. });
  36. return _row;
  37. }, self);
  38. self.oozieEndRow = ko.computed(function () {
  39. var _row = null;
  40. ko.utils.arrayForEach(self.rows(), function (row) {
  41. if ((row.widgets().length > 0 && row.widgets()[0].id() == "33430f0f-ebfa-c3ec-f237-3e77efa03d0a")) {
  42. _row = row;
  43. }
  44. });
  45. return _row;
  46. }, self);
  47. self.oozieKillRow = ko.computed(function () {
  48. var _row = null;
  49. ko.utils.arrayForEach(self.rows(), function (row) {
  50. if ((row.widgets().length > 0 && row.widgets()[0].id() == "17c9c895-5a16-7443-bb81-f34b30b21548")) {
  51. _row = row;
  52. }
  53. });
  54. return _row;
  55. }, self);
  56. self.oozieRows = ko.computed(function () {
  57. var _rows = [];
  58. ko.utils.arrayForEach(self.rows(), function (row) {
  59. if ((row.widgets().length > 0 && ["3f107997-04cc-8733-60a9-a4bb62cebffc", "33430f0f-ebfa-c3ec-f237-3e77efa03d0a", "17c9c895-5a16-7443-bb81-f34b30b21548"].indexOf(row.widgets()[0].id()) == -1) || row.widgets().length == 0) {
  60. _rows.push(row);
  61. }
  62. });
  63. return _rows;
  64. }, self);
  65. self.enableOozieDropOnBefore = ko.observable(true);
  66. self.enableOozieDropOnAfter = ko.observable(true);
  67. self.drops = ko.observableArray(["temp"]);
  68. self.klass = ko.computed(function () {
  69. return "card card-home card-column span" + self.size();
  70. });
  71. self.addEmptyRow = function (atBeginning, atIndex) {
  72. return self.addRow(null, atBeginning, atIndex);
  73. };
  74. self.addRow = function (row, atBeginning, atIndex) {
  75. if (typeof row == "undefined" || row == null) {
  76. row = new Row([], viewModel); // Hacky but needed when a new row is deleted
  77. }
  78. if (typeof atIndex != "undefined" && atIndex != null) {
  79. self.rows.splice(atIndex, 0, row);
  80. }
  81. else {
  82. if (typeof atBeginning == "undefined" || atBeginning == null || !atBeginning) {
  83. self.rows.push(row);
  84. }
  85. else {
  86. self.rows.unshift(row);
  87. }
  88. }
  89. return row;
  90. };
  91. }
  92. var Row = function (widgets, vm, columns) {
  93. var self = this;
  94. self.id = ko.observable(UUID());
  95. self.widgets = ko.observableArray(widgets);
  96. self.columns = ko.observableArray(columns ? columns : []);
  97. self.enableOozieDrop = ko.computed(function(){
  98. return vm.isEditing && vm.isEditing() && self.widgets && self.widgets().length < 1
  99. });
  100. self.enableOozieDropOnBefore = ko.observable(true);
  101. self.enableOozieDropOnSide = ko.observable(true);
  102. self.addWidget = function (widget) {
  103. self.widgets.push(widget);
  104. };
  105. self.addEmptyColumn = function (atBeginning) {
  106. if (self.columns().length == 0){
  107. var _col = self.addColumn(null, atBeginning);
  108. if (self.widgets().length > 0){
  109. var _row = _col.addEmptyRow();
  110. self.widgets().forEach(function(widget){
  111. _row.addWidget(widget);
  112. });
  113. self.widgets([]);
  114. }
  115. }
  116. return self.addColumn(null, atBeginning);
  117. };
  118. self.addColumn = function (column, atBeginning) {
  119. if (typeof column == "undefined" || column == null) {
  120. var _size = Math.max(1, Math.floor(12 / (self.columns().length + 1)));
  121. column = new Column(_size, []); // Hacky but needed when a new row is deleted
  122. self.columns().forEach(function(col){
  123. col.size(_size);
  124. });
  125. }
  126. if (typeof atBeginning == "undefined" || atBeginning == null || ! atBeginning) {
  127. self.columns.push(column);
  128. }
  129. else {
  130. self.columns.unshift(column);
  131. }
  132. return column;
  133. };
  134. self.move = function (from, to) {
  135. try {
  136. vm.columns()[to].addRow(self);
  137. vm.columns()[from].rows.remove(self);
  138. }
  139. catch (exception) {
  140. }
  141. }
  142. self.moveDown = function (col, row) {
  143. var _i = col.rows().indexOf(row);
  144. if (_i < col.rows().length - 1) {
  145. var _arr = col.rows();
  146. col.rows.splice(_i, 2, _arr[_i + 1], _arr[_i]);
  147. }
  148. }
  149. self.moveUp = function (col, row) {
  150. var _i = col.rows().indexOf(row);
  151. if (_i >= 1) {
  152. var _arr = col.rows();
  153. col.rows.splice(_i - 1, 2, _arr[_i], _arr[_i - 1]);
  154. }
  155. }
  156. self.remove = function (col, row) {
  157. $.each(self.columns(), function (i, column) {
  158. $.each(column.rows(), function (j, row) {
  159. $.each(row.widgets(), function (k, widget) {
  160. vm.removeWidget(widget);
  161. });
  162. });
  163. });
  164. $.each(self.widgets(), function (i, widget) {
  165. vm.removeWidget(widget);
  166. });
  167. col.rows.remove(row);
  168. }
  169. self.autosizeWidgets = function () {
  170. $.each(self.widgets(), function (i, widget) {
  171. widget.size(Math.floor(12 / self.widgets().length));
  172. });
  173. }
  174. }
  175. // A widget is generic. It has an id that refer to another object (e.g. facet) with the same id.
  176. var Widget = function (params) {
  177. var self = this;
  178. self.size = ko.observable(params.size).extend({ numeric: 0 });
  179. self.name = ko.observable(params.name);
  180. self.id = ko.observable(params.id);
  181. self.widgetType = ko.observable(typeof params.widgetType != "undefined" && params.widgetType != null ? params.widgetType : "empty-widget");
  182. self.properties = ko.observable(typeof params.properties != "undefined" && params.properties != null ? params.properties : {});
  183. self.offset = ko.observable(typeof params.offset != "undefined" && params.offset != null ? params.offset : 0).extend({ numeric: 0 });
  184. self.isLoading = ko.observable(typeof params.loading != "undefined" && params.loading != null ? params.loading : false);
  185. self.oozieMovable = ko.computed(function() {
  186. return ["end-widget", "start-widget", "fork-widget", "decision-widget", "kill-widget", "join-widget"].indexOf(self.widgetType()) == - 1
  187. });
  188. self.oozieExpanded = ko.observable(false);
  189. self.klass = ko.computed(function () {
  190. return "card card-widget span" + self.size() + (self.offset() * 1 > 0 ? " offset" + self.offset() : "");
  191. });
  192. self.expand = function () {
  193. self.size(self.size() + 1);
  194. $("#wdg_" + self.id()).trigger("resize");
  195. }
  196. self.compress = function () {
  197. self.size(self.size() - 1);
  198. $("#wdg_" + self.id()).trigger("resize");
  199. }
  200. self.moveLeft = function () {
  201. self.offset(self.offset() - 1);
  202. }
  203. self.moveRight = function () {
  204. self.offset(self.offset() + 1);
  205. }
  206. self.remove = function (row, widget) {
  207. if (params.vm != null) {
  208. params.vm.removeWidget(widget);
  209. }
  210. row.widgets.remove(widget);
  211. }
  212. };
  213. Widget.prototype.clone = function () {
  214. return new Widget({
  215. size: this.size(),
  216. id: UUID(),
  217. name: this.name(),
  218. widgetType: this.widgetType()
  219. });
  220. };
  221. function fullLayout(vm) {
  222. setLayout([12], vm);
  223. }
  224. function oneSixthLeftLayout(vm) {
  225. setLayout([2, 10], vm);
  226. }
  227. function oneFourthLeftLayout(vm) {
  228. setLayout([3, 9], vm);
  229. }
  230. function oneThirdLeftLayout(vm) {
  231. setLayout([4, 8], vm);
  232. }
  233. function halfHalfLayout(vm) {
  234. setLayout([6, 6], vm);
  235. }
  236. function oneThirdRightLayout(vm) {
  237. setLayout([8, 4], vm);
  238. }
  239. function oneFourthRightLayout(vm) {
  240. setLayout([9, 3], vm);
  241. }
  242. function oneSixthRightLayout(vm) {
  243. setLayout([10, 2], vm);
  244. }
  245. function setLayout(colSizes, vm) {
  246. // Save previous widgets
  247. var _allRows = [];
  248. $(vm.columns()).each(function (cnt, col) {
  249. var _tRows = [];
  250. $(col.rows()).each(function (icnt, row) {
  251. if (row.widgets().length > 0 || (typeof vm.isNested != "undefined" && vm.isNested())) {
  252. _tRows.push(row);
  253. }
  254. });
  255. _allRows = _allRows.concat(_tRows);
  256. });
  257. var _cols = [];
  258. var _highestCol = {
  259. idx: -1,
  260. size: -1
  261. };
  262. $(colSizes).each(function (cnt, size) {
  263. _cols.push(new Column(size, []));
  264. if (size > _highestCol.size) {
  265. _highestCol.idx = cnt;
  266. _highestCol.size = size;
  267. }
  268. });
  269. if (_allRows.length > 0 && _highestCol.idx > -1) {
  270. _cols[_highestCol.idx].rows(_allRows);
  271. }
  272. $(_cols).each(function (cnt, col) {
  273. if (col.rows().length == 0) {
  274. col.rows([new Row([], vm)]);
  275. }
  276. });
  277. vm.columns(_cols);
  278. $(document).trigger("setLayout");
  279. }