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- var Emitter = require('emitter-component');
- var Hammer = require('../module/hammer');
- var util = require('../util');
- var DataSet = require('../DataSet');
- var DataView = require('../DataView');
- var Range = require('./Range');
- var Core = require('./Core');
- var TimeAxis = require('./component/TimeAxis');
- var CurrentTime = require('./component/CurrentTime');
- var CustomTime = require('./component/CustomTime');
- var ItemSet = require('./component/ItemSet');
-
- var Configurator = require('../shared/Configurator');
- var Validator = require('../shared/Validator').default;
- var printStyle = require('../shared/Validator').printStyle;
- var allOptions = require('./optionsTimeline').allOptions;
- var configureOptions = require('./optionsTimeline').configureOptions;
-
- /**
- * Create a timeline visualization
- * @param {HTMLElement} container
- * @param {vis.DataSet | vis.DataView | Array} [items]
- * @param {vis.DataSet | vis.DataView | Array} [groups]
- * @param {Object} [options] See Timeline.setOptions for the available options.
- * @constructor
- * @extends Core
- */
- function Timeline (container, items, groups, options) {
- if (!(this instanceof Timeline)) {
- throw new SyntaxError('Constructor must be called with the new operator');
- }
-
- // if the third element is options, the forth is groups (optionally);
- if (!(Array.isArray(groups) || groups instanceof DataSet || groups instanceof DataView) && groups instanceof Object) {
- var forthArgument = options;
- options = groups;
- groups = forthArgument;
- }
-
- var me = this;
- this.defaultOptions = {
- start: null,
- end: null,
-
- autoResize: true,
-
- orientation: {
- axis: 'bottom', // axis orientation: 'bottom', 'top', or 'both'
- item: 'bottom' // not relevant
- },
-
- width: null,
- height: null,
- maxHeight: null,
- minHeight: null
- };
- this.options = util.deepExtend({}, this.defaultOptions);
-
- // Create the DOM, props, and emitter
- this._create(container);
-
- // all components listed here will be repainted automatically
- this.components = [];
-
- this.body = {
- dom: this.dom,
- domProps: this.props,
- emitter: {
- on: this.on.bind(this),
- off: this.off.bind(this),
- emit: this.emit.bind(this)
- },
- hiddenDates: [],
- util: {
- getScale: function () {
- return me.timeAxis.step.scale;
- },
- getStep: function () {
- return me.timeAxis.step.step;
- },
-
- toScreen: me._toScreen.bind(me),
- toGlobalScreen: me._toGlobalScreen.bind(me), // this refers to the root.width
- toTime: me._toTime.bind(me),
- toGlobalTime : me._toGlobalTime.bind(me)
- }
- };
-
- // range
- this.range = new Range(this.body);
- this.components.push(this.range);
- this.body.range = this.range;
-
- // time axis
- this.timeAxis = new TimeAxis(this.body);
- this.timeAxis2 = null; // used in case of orientation option 'both'
- this.components.push(this.timeAxis);
-
- // current time bar
- this.currentTime = new CurrentTime(this.body);
- this.components.push(this.currentTime);
-
- // item set
- this.itemSet = new ItemSet(this.body);
- this.components.push(this.itemSet);
-
- this.itemsData = null; // DataSet
- this.groupsData = null; // DataSet
-
- this.on('tap', function (event) {
- me.emit('click', me.getEventProperties(event))
- });
- this.on('doubletap', function (event) {
- me.emit('doubleClick', me.getEventProperties(event))
- });
- this.dom.root.oncontextmenu = function (event) {
- me.emit('contextmenu', me.getEventProperties(event))
- };
-
- // setup configuration system
- this.configurator = new Configurator(this, container, configureOptions);
-
- // apply options
- if (options) {
- this.setOptions(options);
- }
-
- // IMPORTANT: THIS HAPPENS BEFORE SET ITEMS!
- if (groups) {
- this.setGroups(groups);
- }
-
- // create itemset
- if (items) {
- this.setItems(items);
- }
- else {
- this._redraw();
- }
- }
-
- // Extend the functionality from Core
- Timeline.prototype = new Core();
-
- /**
- * Force a redraw. The size of all items will be recalculated.
- * Can be useful to manually redraw when option autoResize=false and the window
- * has been resized, or when the items CSS has been changed.
- */
- Timeline.prototype.redraw = function() {
- this.itemSet && this.itemSet.markDirty({refreshItems: true});
- this._redraw();
- };
-
- Timeline.prototype.setOptions = function (options) {
- // validate options
- let errorFound = Validator.validate(options, allOptions);
- if (errorFound === true) {
- console.log('%cErrors have been found in the supplied options object.', printStyle);
- }
-
- Core.prototype.setOptions.call(this, options);
-
- if ('type' in options) {
- if (options.type !== this.options.type) {
- this.options.type = options.type;
-
- // force recreation of all items
- var itemsData = this.itemsData;
- if (itemsData) {
- var selection = this.getSelection();
- this.setItems(null); // remove all
- this.setItems(itemsData); // add all
- this.setSelection(selection); // restore selection
- }
- }
- }
- };
-
- /**
- * Set items
- * @param {vis.DataSet | Array | null} items
- */
- Timeline.prototype.setItems = function(items) {
- var initialLoad = (this.itemsData == null);
-
- // convert to type DataSet when needed
- var newDataSet;
- if (!items) {
- newDataSet = null;
- }
- else if (items instanceof DataSet || items instanceof DataView) {
- newDataSet = items;
- }
- else {
- // turn an array into a dataset
- newDataSet = new DataSet(items, {
- type: {
- start: 'Date',
- end: 'Date'
- }
- });
- }
-
- // set items
- this.itemsData = newDataSet;
- this.itemSet && this.itemSet.setItems(newDataSet);
-
- if (initialLoad) {
- if (this.options.start != undefined || this.options.end != undefined) {
- if (this.options.start == undefined || this.options.end == undefined) {
- var range = this.getItemRange();
- }
-
- var start = this.options.start != undefined ? this.options.start : range.min;
- var end = this.options.end != undefined ? this.options.end : range.max;
-
- this.setWindow(start, end, {animation: false});
- }
- else {
- this.fit({animation: false});
- }
- }
- };
-
- /**
- * Set groups
- * @param {vis.DataSet | Array} groups
- */
- Timeline.prototype.setGroups = function(groups) {
- // convert to type DataSet when needed
- var newDataSet;
- if (!groups) {
- newDataSet = null;
- }
- else if (groups instanceof DataSet || groups instanceof DataView) {
- newDataSet = groups;
- }
- else {
- // turn an array into a dataset
- newDataSet = new DataSet(groups);
- }
-
- this.groupsData = newDataSet;
- this.itemSet.setGroups(newDataSet);
- };
-
- /**
- * Set both items and groups in one go
- * @param {{items: Array | vis.DataSet, groups: Array | vis.DataSet}} data
- */
- Timeline.prototype.setData = function (data) {
- if (data && data.groups) {
- this.setGroups(data.groups);
- }
-
- if (data && data.items) {
- this.setItems(data.items);
- }
- };
-
- /**
- * Set selected items by their id. Replaces the current selection
- * Unknown id's are silently ignored.
- * @param {string[] | string} [ids] An array with zero or more id's of the items to be
- * selected. If ids is an empty array, all items will be
- * unselected.
- * @param {Object} [options] Available options:
- * `focus: boolean`
- * If true, focus will be set to the selected item(s)
- * `animation: boolean | {duration: number, easingFunction: string}`
- * If true (default), the range is animated
- * smoothly to the new window. An object can be
- * provided to specify duration and easing function.
- * Default duration is 500 ms, and default easing
- * function is 'easeInOutQuad'.
- * Only applicable when option focus is true.
- */
- Timeline.prototype.setSelection = function(ids, options) {
- this.itemSet && this.itemSet.setSelection(ids);
-
- if (options && options.focus) {
- this.focus(ids, options);
- }
- };
-
- /**
- * Get the selected items by their id
- * @return {Array} ids The ids of the selected items
- */
- Timeline.prototype.getSelection = function() {
- return this.itemSet && this.itemSet.getSelection() || [];
- };
-
- /**
- * Adjust the visible window such that the selected item (or multiple items)
- * are centered on screen.
- * @param {String | String[]} id An item id or array with item ids
- * @param {Object} [options] Available options:
- * `animation: boolean | {duration: number, easingFunction: string}`
- * If true (default), the range is animated
- * smoothly to the new window. An object can be
- * provided to specify duration and easing function.
- * Default duration is 500 ms, and default easing
- * function is 'easeInOutQuad'.
- */
- Timeline.prototype.focus = function(id, options) {
- if (!this.itemsData || id == undefined) return;
-
- var ids = Array.isArray(id) ? id : [id];
-
- // get the specified item(s)
- var itemsData = this.itemsData.getDataSet().get(ids, {
- type: {
- start: 'Date',
- end: 'Date'
- }
- });
-
- // calculate minimum start and maximum end of specified items
- var start = null;
- var end = null;
- itemsData.forEach(function (itemData) {
- var s = itemData.start.valueOf();
- var e = 'end' in itemData ? itemData.end.valueOf() : itemData.start.valueOf();
-
- if (start === null || s < start) {
- start = s;
- }
-
- if (end === null || e > end) {
- end = e;
- }
- });
-
- if (start !== null && end !== null) {
- // calculate the new middle and interval for the window
- var middle = (start + end) / 2;
- var interval = Math.max((this.range.end - this.range.start), (end - start) * 1.1);
-
- var animation = (options && options.animation !== undefined) ? options.animation : true;
- this.range.setRange(middle - interval / 2, middle + interval / 2, animation);
- }
- };
-
- /**
- * Set Timeline window such that it fits all items
- * @param {Object} [options] Available options:
- * `animation: boolean | {duration: number, easingFunction: string}`
- * If true (default), the range is animated
- * smoothly to the new window. An object can be
- * provided to specify duration and easing function.
- * Default duration is 500 ms, and default easing
- * function is 'easeInOutQuad'.
- */
- Timeline.prototype.fit = function (options) {
- var animation = (options && options.animation !== undefined) ? options.animation : true;
- var range = this.getItemRange();
- this.range.setRange(range.min, range.max, animation);
- };
-
- /**
- * Determine the range of the items, taking into account their actual width
- * and a margin of 10 pixels on both sides.
- * @return {{min: Date | null, max: Date | null}}
- */
- Timeline.prototype.getItemRange = function () {
- // get a rough approximation for the range based on the items start and end dates
- var range = this.getDataRange();
- var min = range.min;
- var max = range.max;
- var minItem = null;
- var maxItem = null;
-
- if (min != null && max != null) {
- var interval = (max - min); // ms
- if (interval <= 0) {
- interval = 10;
- }
- var factor = interval / this.props.center.width;
-
- function getStart(item) {
- return util.convert(item.data.start, 'Date').valueOf()
- }
-
- function getEnd(item) {
- var end = item.data.end != undefined ? item.data.end : item.data.start;
- return util.convert(end, 'Date').valueOf();
- }
-
- // calculate the date of the left side and right side of the items given
- util.forEach(this.itemSet.items, function (item) {
- item.show();
-
- var start = getStart(item);
- var end = getEnd(item);
-
- var left = new Date(start - (item.getWidthLeft() + 10) * factor);
- var right = new Date(end + (item.getWidthRight() + 10) * factor);
-
- if (left < min) {
- min = left;
- minItem = item;
- }
- if (right > max) {
- max = right;
- maxItem = item;
- }
- }.bind(this));
-
- if (minItem && maxItem) {
- var lhs = minItem.getWidthLeft() + 10;
- var rhs = maxItem.getWidthRight() + 10;
- var delta = this.props.center.width - lhs - rhs; // px
-
- if (delta > 0) {
- min = getStart(minItem) - lhs * interval / delta; // ms
- max = getEnd(maxItem) + rhs * interval / delta; // ms
- }
- }
- }
-
- return {
- min: min != null ? new Date(min) : null,
- max: max != null ? new Date(max) : null
- }
- };
-
- /**
- * Calculate the data range of the items start and end dates
- * @returns {{min: Date | null, max: Date | null}}
- */
- Timeline.prototype.getDataRange = function() {
- var min = null;
- var max = null;
-
- var dataset = this.itemsData && this.itemsData.getDataSet();
- if (dataset) {
- dataset.forEach(function (item) {
- var start = util.convert(item.start, 'Date').valueOf();
- var end = util.convert(item.end != undefined ? item.end : item.start, 'Date').valueOf();
- if (min === null || start < min) {
- min = start;
- }
- if (max === null || end > max) {
- max = start;
- }
- });
- }
-
- return {
- min: min != null ? new Date(min) : null,
- max: max != null ? new Date(max) : null
- }
- };
-
- /**
- * Generate Timeline related information from an event
- * @param {Event} event
- * @return {Object} An object with related information, like on which area
- * The event happened, whether clicked on an item, etc.
- */
- Timeline.prototype.getEventProperties = function (event) {
- var clientX = event.center ? event.center.x : event.clientX;
- var clientY = event.center ? event.center.y : event.clientY;
- var x = clientX - util.getAbsoluteLeft(this.dom.centerContainer);
- var y = clientY - util.getAbsoluteTop(this.dom.centerContainer);
-
- var item = this.itemSet.itemFromTarget(event);
- var group = this.itemSet.groupFromTarget(event);
- var customTime = CustomTime.customTimeFromTarget(event);
-
- var snap = this.itemSet.options.snap || null;
- var scale = this.body.util.getScale();
- var step = this.body.util.getStep();
- var time = this._toTime(x);
- var snappedTime = snap ? snap(time, scale, step) : time;
-
- var element = util.getTarget(event);
- var what = null;
- if (item != null) {what = 'item';}
- else if (customTime != null) {what = 'custom-time';}
- else if (util.hasParent(element, this.timeAxis.dom.foreground)) {what = 'axis';}
- else if (this.timeAxis2 && util.hasParent(element, this.timeAxis2.dom.foreground)) {what = 'axis';}
- else if (util.hasParent(element, this.itemSet.dom.labelSet)) {what = 'group-label';}
- else if (util.hasParent(element, this.currentTime.bar)) {what = 'current-time';}
- else if (util.hasParent(element, this.dom.center)) {what = 'background';}
-
- return {
- event: event,
- item: item ? item.id : null,
- group: group ? group.groupId : null,
- what: what,
- pageX: event.srcEvent ? event.srcEvent.pageX : event.pageX,
- pageY: event.srcEvent ? event.srcEvent.pageY : event.pageY,
- x: x,
- y: y,
- time: time,
- snappedTime: snappedTime
- }
- };
-
- module.exports = Timeline;
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