65 lines
1.6 KiB
JavaScript
65 lines
1.6 KiB
JavaScript
|
var readline = require('readline')
|
||
|
|
var Promise = require('any-promise')
|
||
|
|
var objectAssign = require('object-assign')
|
||
|
|
var Interface = readline.Interface
|
||
|
|
|
||
|
|
function wrapCompleter (completer) {
|
||
|
|
if (completer.length === 2) return completer
|
||
|
|
|
||
|
|
return function (line, cb) {
|
||
|
|
var result = completer(line)
|
||
|
|
|
||
|
|
if (typeof result.then !== 'function') {
|
||
|
|
return cb(null, result)
|
||
|
|
}
|
||
|
|
|
||
|
|
result.catch(cb).then(function (result) {
|
||
|
|
process.nextTick(function () { cb(null, result) })
|
||
|
|
})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function InterfaceAsPromised (input, output, completer, terminal) {
|
||
|
|
if (arguments.length === 1) {
|
||
|
|
var options = input
|
||
|
|
|
||
|
|
if (typeof options.completer === 'function') {
|
||
|
|
options = objectAssign({}, options, {
|
||
|
|
completer: wrapCompleter(options.completer)
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
Interface.call(this, options)
|
||
|
|
} else {
|
||
|
|
if (typeof completer === 'function') {
|
||
|
|
completer = wrapCompleter(completer)
|
||
|
|
}
|
||
|
|
|
||
|
|
Interface.call(this, input, output, completer, terminal)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
InterfaceAsPromised.prototype = Object.create(Interface.prototype)
|
||
|
|
|
||
|
|
InterfaceAsPromised.prototype.question = function (question, callback) {
|
||
|
|
if (typeof callback === 'function') {
|
||
|
|
return Interface.prototype.question.call(this, question, callback)
|
||
|
|
}
|
||
|
|
|
||
|
|
var self = this
|
||
|
|
return new Promise(function (resolve) {
|
||
|
|
Interface.prototype.question.call(self, question, resolve)
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
objectAssign(exports, readline, {
|
||
|
|
Interface: InterfaceAsPromised,
|
||
|
|
createInterface: function (input, output, completer, terminal) {
|
||
|
|
if (arguments.length === 1) {
|
||
|
|
return new InterfaceAsPromised(input)
|
||
|
|
}
|
||
|
|
|
||
|
|
return new InterfaceAsPromised(input, output, completer, terminal)
|
||
|
|
}
|
||
|
|
})
|