vis.js is a dynamic, browser-based visualization library
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  1. var Emitter = require('emitter-component');
  2. var Hammer = require('../module/hammer');
  3. var util = require('../util');
  4. var DataSet = require('../DataSet');
  5. var DataView = require('../DataView');
  6. var Range = require('./Range');
  7. var Core = require('./Core');
  8. var TimeAxis = require('./component/TimeAxis');
  9. var CurrentTime = require('./component/CurrentTime');
  10. var CustomTime = require('./component/CustomTime');
  11. var LineGraph = require('./component/LineGraph');
  12. /**
  13. * Create a timeline visualization
  14. * @param {HTMLElement} container
  15. * @param {vis.DataSet | Array | google.visualization.DataTable} [items]
  16. * @param {Object} [options] See Graph2d.setOptions for the available options.
  17. * @constructor
  18. */
  19. function Graph2d (container, items, options, groups) {
  20. for (var coreProp in Core.prototype) {
  21. if (Core.prototype.hasOwnProperty(coreProp) && !Graph2d.prototype.hasOwnProperty(coreProp)) {
  22. Graph2d.prototype[coreProp] = Core.prototype[coreProp];
  23. }
  24. }
  25. var me = this;
  26. this.defaultOptions = {
  27. start: null,
  28. end: null,
  29. autoResize: true,
  30. orientation: 'bottom',
  31. width: null,
  32. height: null,
  33. maxHeight: null,
  34. minHeight: null
  35. };
  36. this.options = util.deepExtend({}, this.defaultOptions);
  37. // Create the DOM, props, and emitter
  38. this._create(container);
  39. // all components listed here will be repainted automatically
  40. this.components = [];
  41. this.body = {
  42. dom: this.dom,
  43. domProps: this.props,
  44. emitter: {
  45. on: this.on.bind(this),
  46. off: this.off.bind(this),
  47. emit: this.emit.bind(this)
  48. },
  49. util: {
  50. snap: null, // will be specified after TimeAxis is created
  51. toScreen: me._toScreen.bind(me),
  52. toGlobalScreen: me._toGlobalScreen.bind(me), // this refers to the root.width
  53. toTime: me._toTime.bind(me),
  54. toGlobalTime : me._toGlobalTime.bind(me)
  55. }
  56. };
  57. // range
  58. this.range = new Range(this.body);
  59. this.components.push(this.range);
  60. this.body.range = this.range;
  61. // time axis
  62. this.timeAxis = new TimeAxis(this.body);
  63. this.components.push(this.timeAxis);
  64. this.body.util.snap = this.timeAxis.snap.bind(this.timeAxis);
  65. // current time bar
  66. this.currentTime = new CurrentTime(this.body);
  67. this.components.push(this.currentTime);
  68. // custom time bar
  69. // Note: time bar will be attached in this.setOptions when selected
  70. this.customTime = new CustomTime(this.body);
  71. this.components.push(this.customTime);
  72. // item set
  73. this.linegraph = new LineGraph(this.body);
  74. this.components.push(this.linegraph);
  75. this.itemsData = null; // DataSet
  76. this.groupsData = null; // DataSet
  77. // apply options
  78. if (options) {
  79. this.setOptions(options);
  80. }
  81. // IMPORTANT: THIS HAPPENS BEFORE SET ITEMS!
  82. if (groups) {
  83. this.setGroups(groups);
  84. }
  85. // create itemset
  86. if (items) {
  87. this.setItems(items);
  88. }
  89. else {
  90. this.redraw();
  91. }
  92. }
  93. /**
  94. * Set options. Options will be passed to all components loaded in the Graph2d.
  95. * @param {Object} [options]
  96. * {String} orientation
  97. * Vertical orientation for the Graph2d,
  98. * can be 'bottom' (default) or 'top'.
  99. * {String | Number} width
  100. * Width for the timeline, a number in pixels or
  101. * a css string like '1000px' or '75%'. '100%' by default.
  102. * {String | Number} height
  103. * Fixed height for the Graph2d, a number in pixels or
  104. * a css string like '400px' or '75%'. If undefined,
  105. * The Graph2d will automatically size such that
  106. * its contents fit.
  107. * {String | Number} minHeight
  108. * Minimum height for the Graph2d, a number in pixels or
  109. * a css string like '400px' or '75%'.
  110. * {String | Number} maxHeight
  111. * Maximum height for the Graph2d, a number in pixels or
  112. * a css string like '400px' or '75%'.
  113. * {Number | Date | String} start
  114. * Start date for the visible window
  115. * {Number | Date | String} end
  116. * End date for the visible window
  117. */
  118. Graph2d.prototype.setOptions = function (options) {
  119. if (options) {
  120. // copy the known options
  121. var fields = ['width', 'height', 'minHeight', 'maxHeight', 'autoResize', 'start', 'end', 'orientation'];
  122. util.selectiveExtend(fields, this.options, options);
  123. // enable/disable autoResize
  124. this._initAutoResize();
  125. }
  126. // propagate options to all components
  127. this.components.forEach(function (component) {
  128. component.setOptions(options);
  129. });
  130. // TODO: remove deprecation error one day (deprecated since version 0.8.0)
  131. if (options && options.order) {
  132. throw new Error('Option order is deprecated. There is no replacement for this feature.');
  133. }
  134. // redraw everything
  135. this.redraw();
  136. };
  137. /**
  138. * Set items
  139. * @param {vis.DataSet | Array | google.visualization.DataTable | null} items
  140. */
  141. Graph2d.prototype.setItems = function(items) {
  142. var initialLoad = (this.itemsData == null);
  143. // convert to type DataSet when needed
  144. var newDataSet;
  145. if (!items) {
  146. newDataSet = null;
  147. }
  148. else if (items instanceof DataSet || items instanceof DataView) {
  149. newDataSet = items;
  150. }
  151. else {
  152. // turn an array into a dataset
  153. newDataSet = new DataSet(items, {
  154. type: {
  155. start: 'Date',
  156. end: 'Date'
  157. }
  158. });
  159. }
  160. // set items
  161. this.itemsData = newDataSet;
  162. this.linegraph && this.linegraph.setItems(newDataSet);
  163. if (initialLoad && ('start' in this.options || 'end' in this.options)) {
  164. this.fit();
  165. var start = ('start' in this.options) ? util.convert(this.options.start, 'Date') : null;
  166. var end = ('end' in this.options) ? util.convert(this.options.end, 'Date') : null;
  167. this.setWindow(start, end);
  168. }
  169. };
  170. /**
  171. * Set groups
  172. * @param {vis.DataSet | Array | google.visualization.DataTable} groups
  173. */
  174. Graph2d.prototype.setGroups = function(groups) {
  175. // convert to type DataSet when needed
  176. var newDataSet;
  177. if (!groups) {
  178. newDataSet = null;
  179. }
  180. else if (groups instanceof DataSet || groups instanceof DataView) {
  181. newDataSet = groups;
  182. }
  183. else {
  184. // turn an array into a dataset
  185. newDataSet = new DataSet(groups);
  186. }
  187. this.groupsData = newDataSet;
  188. this.linegraph.setGroups(newDataSet);
  189. };
  190. module.exports = Graph2d;