You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
51 lines
1.2 KiB
JavaScript
51 lines
1.2 KiB
JavaScript
"use strict";
|
|
|
|
const defaultValue = require("default-value");
|
|
const { validateOptions, required, isFunction, isNumber } = require("validatem");
|
|
|
|
module.exports = function createTimer(defaults = {}) {
|
|
/* TODO: Have a base 'optionsSchema' that's used both here and in `start` via merge-by-template */
|
|
validateOptions(arguments, {
|
|
timeout: [ required, isNumber ],
|
|
onFire: [ required, isFunction ],
|
|
onCancel: [ isFunction ]
|
|
});
|
|
|
|
let currentTimer;
|
|
let currentOnCancel = defaults.onCancel;
|
|
|
|
return {
|
|
stop: function () {
|
|
if (this.isRunning()) {
|
|
clearTimeout(currentTimer);
|
|
currentTimer = null;
|
|
|
|
if (currentOnCancel != null) {
|
|
currentOnCancel();
|
|
}
|
|
}
|
|
},
|
|
start: function (override = {}) {
|
|
validateOptions(arguments, {
|
|
timeout: [ isNumber ],
|
|
onFire: [ isFunction ],
|
|
onCancel: [ isFunction ]
|
|
});
|
|
|
|
this.stop();
|
|
|
|
let effectiveTimeout = defaultValue(override.timeout, defaults.timeout);
|
|
let effectiveOnFire = defaultValue(override.onFire, defaults.onFire);
|
|
currentOnCancel = defaultValue(override.onCancel, defaults.onCancel);
|
|
|
|
currentTimer = setTimeout(() => {
|
|
currentTimer = null;
|
|
effectiveOnFire();
|
|
}, effectiveTimeout);
|
|
},
|
|
isRunning: function () {
|
|
return (currentTimer != null);
|
|
}
|
|
};
|
|
};
|