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