62 lines
1.0 KiB
JavaScript
62 lines
1.0 KiB
JavaScript
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/*!
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* pause
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* Copyright(c) 2012 TJ Holowaychuk
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* Copyright(c) 2015 Douglas Christopher Wilson
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* MIT Licensed
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*/
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'use strict'
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/**
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* Module exports.
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* @public
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*/
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module.exports = pause
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/**
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* Pause the data events on a stream.
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*
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* @param {object} stream
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* @public
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*/
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function pause(stream) {
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var events = []
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var onData = createEventListener('data', events)
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var onEnd = createEventListener('end', events)
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// buffer data
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stream.on('data', onData)
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// buffer end
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stream.on('end', onEnd)
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return {
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end: function end() {
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stream.removeListener('data', onData)
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stream.removeListener('end', onEnd)
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},
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resume: function resume() {
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this.end()
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for (var i = 0; i < events.length; i++) {
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stream.emit.apply(stream, events[i])
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}
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}
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}
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}
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function createEventListener(name, events) {
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return function onEvent() {
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var args = new Array(arguments.length + 1)
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args[0] = name
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for (var i = 0; i < arguments.length; i++) {
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args[i + 1] = arguments[i]
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}
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events.push(args)
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}
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}
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