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.
170 lines
4.3 KiB
170 lines
4.3 KiB
var util = require('../../util');
|
|
var Component = require('./Component');
|
|
var moment = require('../../module/moment');
|
|
var locales = require('../locales');
|
|
|
|
/**
|
|
* A current time bar
|
|
* @param {{range: Range, dom: Object, domProps: Object}} body
|
|
* @param {Object} [options] Available parameters:
|
|
* {Boolean} [showCurrentTime]
|
|
* @constructor CurrentTime
|
|
* @extends Component
|
|
*/
|
|
function CurrentTime (body, options) {
|
|
this.body = body;
|
|
|
|
// default options
|
|
this.defaultOptions = {
|
|
showCurrentTime: true,
|
|
|
|
locales: locales,
|
|
locale: 'en'
|
|
};
|
|
this.options = util.extend({}, this.defaultOptions);
|
|
this.offset = 0;
|
|
|
|
this._create();
|
|
|
|
this.setOptions(options);
|
|
}
|
|
|
|
CurrentTime.prototype = new Component();
|
|
|
|
/**
|
|
* Create the HTML DOM for the current time bar
|
|
* @private
|
|
*/
|
|
CurrentTime.prototype._create = function() {
|
|
var bar = document.createElement('div');
|
|
bar.className = 'currenttime';
|
|
bar.style.position = 'absolute';
|
|
bar.style.top = '0px';
|
|
bar.style.height = '100%';
|
|
|
|
this.bar = bar;
|
|
};
|
|
|
|
/**
|
|
* Destroy the CurrentTime bar
|
|
*/
|
|
CurrentTime.prototype.destroy = function () {
|
|
this.options.showCurrentTime = false;
|
|
this.redraw(); // will remove the bar from the DOM and stop refreshing
|
|
|
|
this.body = null;
|
|
};
|
|
|
|
/**
|
|
* Set options for the component. Options will be merged in current options.
|
|
* @param {Object} options Available parameters:
|
|
* {boolean} [showCurrentTime]
|
|
*/
|
|
CurrentTime.prototype.setOptions = function(options) {
|
|
if (options) {
|
|
// copy all options that we know
|
|
util.selectiveExtend(['showCurrentTime', 'locale', 'locales'], this.options, options);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Repaint the component
|
|
* @return {boolean} Returns true if the component is resized
|
|
*/
|
|
CurrentTime.prototype.redraw = function() {
|
|
if (this.options.showCurrentTime) {
|
|
var parent = this.body.dom.backgroundVertical;
|
|
if (this.bar.parentNode != parent) {
|
|
// attach to the dom
|
|
if (this.bar.parentNode) {
|
|
this.bar.parentNode.removeChild(this.bar);
|
|
}
|
|
parent.appendChild(this.bar);
|
|
|
|
this.start();
|
|
}
|
|
|
|
var now = new Date(new Date().valueOf() + this.offset);
|
|
var x = this.body.util.toScreen(now);
|
|
|
|
var locale = this.options.locales[this.options.locale];
|
|
if (!locale) {
|
|
if (!this.warned) {
|
|
console.log('WARNING: locale "' + this.options.locale + '" not found in vis.js');
|
|
this.warned = true;
|
|
}
|
|
locale = this.options.locales['en']; // fall back on english when not available
|
|
}
|
|
var title = locale.current + ' ' + locale.time + ': ' + moment(now).format('dddd, MMMM Do YYYY, H:mm:ss');
|
|
title = title.charAt(0).toUpperCase() + title.substring(1);
|
|
|
|
this.bar.style.left = x + 'px';
|
|
this.bar.title = title;
|
|
}
|
|
else {
|
|
// remove the line from the DOM
|
|
if (this.bar.parentNode) {
|
|
this.bar.parentNode.removeChild(this.bar);
|
|
}
|
|
this.stop();
|
|
}
|
|
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* Start auto refreshing the current time bar
|
|
*/
|
|
CurrentTime.prototype.start = function() {
|
|
var me = this;
|
|
|
|
function update () {
|
|
me.stop();
|
|
|
|
// determine interval to refresh
|
|
var scale = me.body.range.conversion(me.body.domProps.center.width).scale;
|
|
var interval = 1 / scale / 10;
|
|
if (interval < 30) interval = 30;
|
|
if (interval > 1000) interval = 1000;
|
|
|
|
me.redraw();
|
|
|
|
// start a timer to adjust for the new time
|
|
me.currentTimeTimer = setTimeout(update, interval);
|
|
}
|
|
|
|
update();
|
|
};
|
|
|
|
/**
|
|
* Stop auto refreshing the current time bar
|
|
*/
|
|
CurrentTime.prototype.stop = function() {
|
|
if (this.currentTimeTimer !== undefined) {
|
|
clearTimeout(this.currentTimeTimer);
|
|
delete this.currentTimeTimer;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Set a current time. This can be used for example to ensure that a client's
|
|
* time is synchronized with a shared server time.
|
|
* @param {Date | String | Number} time A Date, unix timestamp, or
|
|
* ISO date string.
|
|
*/
|
|
CurrentTime.prototype.setCurrentTime = function(time) {
|
|
var t = util.convert(time, 'Date').valueOf();
|
|
var now = new Date().valueOf();
|
|
this.offset = t - now;
|
|
this.redraw();
|
|
};
|
|
|
|
/**
|
|
* Get the current time.
|
|
* @return {Date} Returns the current time.
|
|
*/
|
|
CurrentTime.prototype.getCurrentTime = function() {
|
|
return new Date(new Date().valueOf() + this.offset);
|
|
};
|
|
|
|
module.exports = CurrentTime;
|