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Diffstat (limited to 'node_modules/mute-stream/mute.js')
-rw-r--r-- | node_modules/mute-stream/mute.js | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/node_modules/mute-stream/mute.js b/node_modules/mute-stream/mute.js new file mode 100644 index 0000000..a24fc09 --- /dev/null +++ b/node_modules/mute-stream/mute.js @@ -0,0 +1,145 @@ +var Stream = require('stream') + +module.exports = MuteStream + +// var out = new MuteStream(process.stdout) +// argument auto-pipes +function MuteStream (opts) { + Stream.apply(this) + opts = opts || {} + this.writable = this.readable = true + this.muted = false + this.on('pipe', this._onpipe) + this.replace = opts.replace + + // For readline-type situations + // This much at the start of a line being redrawn after a ctrl char + // is seen (such as backspace) won't be redrawn as the replacement + this._prompt = opts.prompt || null + this._hadControl = false +} + +MuteStream.prototype = Object.create(Stream.prototype) + +Object.defineProperty(MuteStream.prototype, 'constructor', { + value: MuteStream, + enumerable: false +}) + +MuteStream.prototype.mute = function () { + this.muted = true +} + +MuteStream.prototype.unmute = function () { + this.muted = false +} + +Object.defineProperty(MuteStream.prototype, '_onpipe', { + value: onPipe, + enumerable: false, + writable: true, + configurable: true +}) + +function onPipe (src) { + this._src = src +} + +Object.defineProperty(MuteStream.prototype, 'isTTY', { + get: getIsTTY, + set: setIsTTY, + enumerable: true, + configurable: true +}) + +function getIsTTY () { + return( (this._dest) ? this._dest.isTTY + : (this._src) ? this._src.isTTY + : false + ) +} + +// basically just get replace the getter/setter with a regular value +function setIsTTY (isTTY) { + Object.defineProperty(this, 'isTTY', { + value: isTTY, + enumerable: true, + writable: true, + configurable: true + }) +} + +Object.defineProperty(MuteStream.prototype, 'rows', { + get: function () { + return( this._dest ? this._dest.rows + : this._src ? this._src.rows + : undefined ) + }, enumerable: true, configurable: true }) + +Object.defineProperty(MuteStream.prototype, 'columns', { + get: function () { + return( this._dest ? this._dest.columns + : this._src ? this._src.columns + : undefined ) + }, enumerable: true, configurable: true }) + + +MuteStream.prototype.pipe = function (dest, options) { + this._dest = dest + return Stream.prototype.pipe.call(this, dest, options) +} + +MuteStream.prototype.pause = function () { + if (this._src) return this._src.pause() +} + +MuteStream.prototype.resume = function () { + if (this._src) return this._src.resume() +} + +MuteStream.prototype.write = function (c) { + if (this.muted) { + if (!this.replace) return true + if (c.match(/^\u001b/)) { + if(c.indexOf(this._prompt) === 0) { + c = c.substr(this._prompt.length); + c = c.replace(/./g, this.replace); + c = this._prompt + c; + } + this._hadControl = true + return this.emit('data', c) + } else { + if (this._prompt && this._hadControl && + c.indexOf(this._prompt) === 0) { + this._hadControl = false + this.emit('data', this._prompt) + c = c.substr(this._prompt.length) + } + c = c.toString().replace(/./g, this.replace) + } + } + this.emit('data', c) +} + +MuteStream.prototype.end = function (c) { + if (this.muted) { + if (c && this.replace) { + c = c.toString().replace(/./g, this.replace) + } else { + c = null + } + } + if (c) this.emit('data', c) + this.emit('end') +} + +function proxy (fn) { return function () { + var d = this._dest + var s = this._src + if (d && d[fn]) d[fn].apply(d, arguments) + if (s && s[fn]) s[fn].apply(s, arguments) +}} + +MuteStream.prototype.destroy = proxy('destroy') +MuteStream.prototype.destroySoon = proxy('destroySoon') +MuteStream.prototype.close = proxy('close') |