51 lines
1.5 KiB
JavaScript
51 lines
1.5 KiB
JavaScript
'use strict'
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const { EventEmitter } = require('events')
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const { powerMonitor, PowerMonitor } = process.atomBinding('power_monitor')
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// PowerMonitor is an EventEmitter.
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Object.setPrototypeOf(PowerMonitor.prototype, EventEmitter.prototype)
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EventEmitter.call(powerMonitor)
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// On Linux we need to call blockShutdown() to subscribe to shutdown event.
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if (process.platform === 'linux') {
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powerMonitor.on('newListener', (event) => {
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if (event === 'shutdown' && powerMonitor.listenerCount('shutdown') === 0) {
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powerMonitor.blockShutdown()
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}
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})
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powerMonitor.on('removeListener', (event) => {
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if (event === 'shutdown' && powerMonitor.listenerCount('shutdown') === 0) {
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powerMonitor.unblockShutdown()
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}
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})
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}
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// TODO(deepak1556): Deprecate async api in favor of sync version in 5.0
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powerMonitor.querySystemIdleState = function (threshold, callback) {
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if (typeof threshold !== 'number') {
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throw new Error('Must pass threshold as a number')
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}
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if (typeof callback !== 'function') {
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throw new Error('Must pass callback as a function argument')
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}
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const idleState = this._querySystemIdleState(threshold)
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process.nextTick(() => callback(idleState))
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}
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// TODO(deepak1556): Deprecate async api in favor of sync version in 5.0
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powerMonitor.querySystemIdleTime = function (callback) {
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if (typeof callback !== 'function') {
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throw new Error('Must pass function as an argument')
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}
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const idleTime = this._querySystemIdleTime()
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process.nextTick(() => callback(idleTime))
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}
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module.exports = powerMonitor
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