You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
295 lines
8.6 KiB
295 lines
8.6 KiB
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');
|
|
|
|
/**
|
|
* Create a timeline visualization
|
|
* @param {HTMLElement} container
|
|
* @param {vis.DataSet | Array | google.visualization.DataTable} [items]
|
|
* @param {Object} [options] See Timeline.setOptions for the available options.
|
|
* @constructor
|
|
* @extends Core
|
|
*/
|
|
function Timeline (container, items, options) {
|
|
if (!(this instanceof Timeline)) {
|
|
throw new SyntaxError('Constructor must be called with the new operator');
|
|
}
|
|
|
|
var me = this;
|
|
this.defaultOptions = {
|
|
start: null,
|
|
end: null,
|
|
|
|
autoResize: true,
|
|
|
|
orientation: 'bottom',
|
|
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)
|
|
},
|
|
util: {
|
|
snap: null, // will be specified after TimeAxis is created
|
|
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.components.push(this.timeAxis);
|
|
this.body.util.snap = this.timeAxis.snap.bind(this.timeAxis);
|
|
|
|
// current time bar
|
|
this.currentTime = new CurrentTime(this.body);
|
|
this.components.push(this.currentTime);
|
|
|
|
// custom time bar
|
|
// Note: time bar will be attached in this.setOptions when selected
|
|
this.customTime = new CustomTime(this.body);
|
|
this.components.push(this.customTime);
|
|
|
|
// item set
|
|
this.itemSet = new ItemSet(this.body);
|
|
this.components.push(this.itemSet);
|
|
|
|
this.itemsData = null; // DataSet
|
|
this.groupsData = null; // DataSet
|
|
|
|
// apply options
|
|
if (options) {
|
|
this.setOptions(options);
|
|
}
|
|
|
|
// create itemset
|
|
if (items) {
|
|
this.setItems(items);
|
|
}
|
|
else {
|
|
this.redraw();
|
|
}
|
|
}
|
|
|
|
// Extend the functionality from Core
|
|
Timeline.prototype = new Core();
|
|
|
|
/**
|
|
* Set items
|
|
* @param {vis.DataSet | Array | google.visualization.DataTable | 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) {
|
|
var start = this.options.start != undefined ? this.options.start : null;
|
|
var end = this.options.end != undefined ? this.options.end : null;
|
|
|
|
this.setWindow(start, end, {animate: false});
|
|
}
|
|
else {
|
|
this.fit({animate: false});
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Set groups
|
|
* @param {vis.DataSet | Array | google.visualization.DataTable} 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 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)
|
|
* `animate: boolean | number`
|
|
* If true (default), the range is animated
|
|
* smoothly to the new window.
|
|
* If a number, the number is taken as duration
|
|
* for the animation. Default duration is 500 ms.
|
|
* 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:
|
|
* `animate: boolean | number`
|
|
* If true (default), the range is animated
|
|
* smoothly to the new window.
|
|
* If a number, the number is taken as duration
|
|
* for the animation. Default duration is 500 ms.
|
|
* Only applicable when option focus is true
|
|
*/
|
|
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 animate = (options && options.animate !== undefined) ? options.animate : true;
|
|
this.range.setRange(middle - interval / 2, middle + interval / 2, animate);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Get the data range of the item set.
|
|
* @returns {{min: Date, max: Date}} range A range with a start and end Date.
|
|
* When no minimum is found, min==null
|
|
* When no maximum is found, max==null
|
|
*/
|
|
Timeline.prototype.getItemRange = function() {
|
|
// calculate min from start filed
|
|
var dataset = this.itemsData.getDataSet(),
|
|
min = null,
|
|
max = null;
|
|
|
|
if (dataset) {
|
|
// calculate the minimum value of the field 'start'
|
|
var minItem = dataset.min('start');
|
|
min = minItem ? util.convert(minItem.start, 'Date').valueOf() : null;
|
|
// Note: we convert first to Date and then to number because else
|
|
// a conversion from ISODate to Number will fail
|
|
|
|
// calculate maximum value of fields 'start' and 'end'
|
|
var maxStartItem = dataset.max('start');
|
|
if (maxStartItem) {
|
|
max = util.convert(maxStartItem.start, 'Date').valueOf();
|
|
}
|
|
var maxEndItem = dataset.max('end');
|
|
if (maxEndItem) {
|
|
if (max == null) {
|
|
max = util.convert(maxEndItem.end, 'Date').valueOf();
|
|
}
|
|
else {
|
|
max = Math.max(max, util.convert(maxEndItem.end, 'Date').valueOf());
|
|
}
|
|
}
|
|
}
|
|
|
|
return {
|
|
min: (min != null) ? new Date(min) : null,
|
|
max: (max != null) ? new Date(max) : null
|
|
};
|
|
};
|
|
|
|
|
|
module.exports = Timeline;
|