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