106 lines
2.5 KiB
JavaScript
106 lines
2.5 KiB
JavaScript
/**
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* transform.js - browserify workaround for blessed
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* Copyright (c) 2013-2015, Christopher Jeffrey and contributors (MIT License).
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* https://github.com/chjj/blessed
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*/
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var Transform = require('stream').Transform
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, path = require('path')
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, fs = require('fs');
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/**
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* Transformer
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*/
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function transformer(code) {
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var stream = new Transform;
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stream._transform = function(chunk, encoding, callback) {
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return callback(null, chunk);
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};
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stream._flush = function(callback) {
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if (code) {
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stream.push(code);
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}
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return callback();
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};
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return stream;
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}
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/**
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* Explicitly require all widgets in widget.js
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*/
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var widgets = fs.readdirSync(__dirname + '/../lib/widgets');
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var requireWidgets = widgets.reduce(function(out, name) {
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name = path.basename(name, '.js');
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out += '\nrequire(\'./widgets/' + name + '\');';
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return out;
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}, '');
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/**
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* Do not make filesystem calls in tput.js for
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* terminfo or termcap, just use xterm terminfo/cap.
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*/
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var infoPath = path.resolve(__dirname, '..', 'usr', 'xterm')
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, capPath = path.resolve(__dirname, '..', 'usr', 'xterm.termcap');
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var infoPathFake = path.resolve(
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path.sep, 'usr', 'share', 'terminfo',
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path.basename(infoPath)[0],
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path.basename(infoPath)
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);
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function readMethods() {
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Tput._infoBuffer = new Buffer(TERMINFO, 'base64');
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Tput.prototype.readTerminfo = function() {
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this.terminal = TERMINFO_NAME;
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return this.parseTerminfo(Tput._infoBuffer, TERMINFO_PATH);
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};
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Tput.cpaths = [];
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Tput.termcap = TERMCAP;
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Tput.prototype._readTermcap = Tput.prototype.readTermcap;
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Tput.prototype.readTermcap = function() {
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this.terminal = TERMCAP_NAME;
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return this._readTermcap(this.terminal);
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};
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Tput.prototype.detectUnicode = function() {
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return true;
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};
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}
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readMethods = readMethods.toString().slice(24, -2)
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.replace(/^ /gm, '')
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.replace('TERMINFO', JSON.stringify(fs.readFileSync(infoPath, 'base64')))
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.replace('TERMINFO_NAME', JSON.stringify(path.basename(infoPath)))
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.replace('TERMINFO_PATH', JSON.stringify(infoPathFake))
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.replace('TERMCAP', JSON.stringify(fs.readFileSync(capPath, 'utf8')))
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.replace('TERMCAP_NAME', JSON.stringify(path.basename(capPath, '.termcap')));
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/**
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* Helpers
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*/
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function end(file, offset) {
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return file.split(path.sep).slice(offset).join(path.sep);
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}
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/**
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* Expose
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*/
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module.exports = function(file) {
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if (end(file, -2) === 'lib/widget.js') {
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return transformer(requireWidgets);
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}
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if (end(file, -2) === 'lib/tput.js') {
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return transformer(readMethods);
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}
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return transformer();
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};
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