/* jslint node: true */ 'use strict'; var ansi = require('./ansi_term.js'); var assert = require('assert'); exports.connectEntry = connectEntry; function ansiQueryTermSizeIfNeeded(client, cb) { if(client.term.termHeight > 0 || client.term.termWidth > 0) { cb(true); return; } var done = function(res) { client.removeListener('cursor position report', cprListener); clearTimeout(giveUpTimer); cb(res); }; var cprListener = function(pos) { // // If we've already found out, disregard // if(client.term.termHeight > 0 || client.term.termWidth > 0) { done(true); return; } assert(2 === pos.length); var h = pos[0]; var w = pos[1]; // // Netrunner for example gives us 1x1 here. Not really useful. Ignore // values that seem obviously bad. // if(h < 10 || w < 10) { client.log.warn( { height : h, width : w }, 'Ignoring ANSI CPR screen size query response due to very small values'); done(false); return; } client.term.termHeight = h; client.term.termWidth = w; client.log.debug( { termWidth : client.term.termWidth, termHeight : client.term.termHeight, source : 'ANSI CPR' }, 'Window size updated' ); done(true); }; client.once('cursor position report', cprListener); // give up after 2s var giveUpTimer = setTimeout(function onTimeout() { done(false); }, 2000); // This causes client.term.rawWrite(ansi.queryScreenSize()); } function prepareTerminal(term) { term.rawWrite(ansi.normal()); term.rawWrite(ansi.disableVT100LineWrapping()); // :TODO: set xterm stuff -- see x84/others } function displayBanner(term) { term.pipeWrite( '|06Conected to |02EN|10i|02GMA|10½ |06BBS version |12|VN\n' + '|06Copyright (c) 2014-2015 Bryan Ashby |14- |12http://l33t.codes/\n' + '|06Updates & source |14- |12https://github.com/NuSkooler/enigma-bbs/\n' + '|00'); } function connectEntry(client, nextMenu) { var term = client.term; // :TODO: Enthral for example queries cursor position & checks if it worked. This might be good // :TODO: How to detect e.g. if show/hide cursor can work? Probably can if CPR is avail // // Some terminal clients can be detected using a nonstandard ANSI DSR // term.rawWrite(ansi.queryDeviceAttributes(0)); // :TODO: PuTTY will apparently respond with "PuTTY" if a CTRL-E is sent to it. Add in detection. // // If we don't yet know the client term width/height, // try with a nonstandard ANSI DSR type request. // ansiQueryTermSizeIfNeeded(client, function ansiCprResult(result) { if(!result) { // // We still don't have something good for term height/width. // Default to DOS size 80x25. // // :TODO: Netrunner is currenting hitting this and it feels wrong. Why is NAWS/ENV/CPR all failing??? client.log.warn('Failed to negotiate term size; Defaulting to 80x25!'); term.termHeight = 25; term.termWidth = 80; } prepareTerminal(term); // // Always show a ENiGMA½ banner // displayBanner(term); setTimeout(function onTimeout() { client.menuStack.goto(nextMenu); }, 500); }); }