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MeshCentral/public/scripts/amt-terminal-0.0.2.js

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JavaScript
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/**
* @description Remote Terminal
* @author Ylian Saint-Hilaire
* @version v0.0.2c
*/
// https://invisible-island.net/xterm/ctlseqs/ctlseqs.html
// Construct a MeshServer object
var CreateAmtRemoteTerminal = function (divid) {
var obj = {};
obj.DivId = divid;
obj.DivElement = document.getElementById(divid);
obj.protocol = 1; // SOL
// ###BEGIN###{Terminal-Enumation-All}
obj.terminalEmulation = 1;
// ###END###{Terminal-Enumation-All}
obj.fxEmulation = 0;
obj.lineFeed = '\r\n';
obj.debugmode = 0;
obj.width = 80; // 80 or 100
obj.height = 25; // 25 or 30
var _Terminal_CellHeight = 21;
var _Terminal_CellWidth = 13;
var _TermColors = ['000000', 'BB0000', '00BB00', 'BBBB00', '0000BB', 'BB00BB', '00BBBB', 'BBBBBB', '555555', 'FF5555', '55FF55', 'FFFF55', '5555FF', 'FF55FF', '55FFFF', 'FFFFFF'];
var _TermCurrentReverse = 0;
var _TermCurrentFColor = 7;
var _TermCurrentBColor = 0;
var _TermLineWrap = true;
var _termx = 0;
var _termy = 0;
var _termsavex = 0;
var _termsavey = 0;
var _termstate = 0;
var _escNumber = [];
var _escNumberPtr = 0;
var _escNumberMode = 0;
var _scratt = [];
var _tscreen = [];
var _VTUNDERLINE = 1;
var _VTREVERSE = 2;
var _backSpaceErase = false;
var _cursorVisible = true;
var _scrollRegion = [0, 24];
var _altKeypadMode = false;
obj.Start = function () { }
obj.Init = function (width, height) {
obj.width = width ? width : 80;
obj.height = height ? height : 25;
for (var y = 0; y < obj.height; y++) {
_tscreen[y] = [];
_scratt[y] = [];
for (var x = 0; x < obj.width; x++) { _tscreen[y][x] = ' '; _scratt[y][x] = (7 << 6); }
}
obj.TermInit();
obj.TermDraw();
}
obj.xxStateChange = function(newstate) { }
obj.ProcessData = function (str) {
if (obj.debugmode == 2) { console.log("TRecv(" + str.length + "): " + rstr2hex(str)); }
// ###BEGIN###{Terminal-Enumation-UTF8}
//str = decode_utf8(str);
// ###END###{Terminal-Enumation-UTF8}
// ###BEGIN###{Terminal-Enumation-All}
if (obj.terminalEmulation == 0) { str = decode_utf8(str); }
// ###END###{Terminal-Enumation-All}
if (obj.capture != null) obj.capture += str; _ProcessVt100EscString(str); obj.TermDraw();
}
function _ProcessVt100EscString(str) { for (var i = 0; i < str.length; i++) _ProcessVt100EscChar(String.fromCharCode(str.charCodeAt(i)), str.charCodeAt(i)); }
function _ProcessVt100EscChar(b, c) {
switch (_termstate) {
case 0: // Normal Term State
switch (c) {
case 27: // ESC
_termstate = 1;
_escNumber = [];
_escNumberPtr = 0;
_escNumberMode = 0;
break;
default:
// Process a single char
_ProcessVt100Char(b);
break;
}
break;
case 1:
switch (b) {
case '[':
_termstate = 2;
break;
case '(':
_termstate = 4;
break;
case ')':
_termstate = 5;
break;
case '=':
// Set alternate keypad mode
_altKeypadMode = true;
_termstate = 0;
break;
case '>':
// Set numeric keypad mode
_altKeypadMode = false;
_termstate = 0;
break;
case '7':
// Save Cursor
_termsavex = _termx;
_termsavey = _termy;
_termstate = 0;
break;
case '8':
// Restore Cursor
_termx = _termsavex;
_termy = _termsavey;
_termstate = 0;
break;
case 'M':
// Scroll down one
var x = 1;
for (var y = _scrollRegion[1]; y >= _scrollRegion[0] + x; y--) {
for (var z = 0; z < obj.width; z++) { _tscreen[y][z] = _tscreen[y - x][z]; _scratt[y][z] = _scratt[y - x][z]; }
}
for (var y = _scrollRegion[0] + x - 1; y > _scrollRegion[0] - 1; y--) {
for (var z = 0; z < obj.width; z++) { _tscreen[y][z] = ' '; _scratt[y][z] = (7 << 6); }
}
_termstate = 0;
break;
default:
console.log('unknown terminal short code', b);
_termstate = 0;
break;
}
break;
case 2:
if (b >= '0' && b <= '9') {
// This is a number
if (!_escNumber[_escNumberPtr]) { _escNumber[_escNumberPtr] = (b - '0'); }
else { _escNumber[_escNumberPtr] = ((_escNumber[_escNumberPtr] * 10) + (b - '0')); }
break;
} else if (b == ';') {
// New number
_escNumberPtr++;
break;
} else if (b == '?') {
_escNumberMode = 1;
break;
} else {
// Process Escape Sequence
if (!_escNumber[0]) _escNumber[0] = 0;
_ProcessEscapeHandler(b, _escNumber, _escNumberPtr + 1, _escNumberMode);
_termstate = 0;
}
break;
case 4: // '(' Code
_termstate = 0;
break;
case 5: // ')' Code
_termstate = 0;
break;
}
}
function _ProcessEscapeHandler(code, args, argslen, mode) {
//console.log('process', code, args, mode);
if (mode == 1) {
switch (code) {
case 'l': // Hide the cursor
if (args[0] == 25) { _cursorVisible = false; }
break;
case 'h': // Show the cursor
if (args[0] == 25) { _cursorVisible = true; }
break;
}
} else if (mode == 0) {
var i;
switch (code) {
case 'c': // ResetDevice
// Reset
obj.TermResetScreen();
break;
case 'A': // Move cursor up n lines
if (argslen == 1) {
if (args[0] == 0) { _termy--; } else { _termy -= args[0]; }
if (_termy < 0) _termy = 0;
}
break;
case 'B': // Move cursor down n lines
if (argslen == 1) {
if (args[0] == 0) { _termy++; } else { _termy += args[0]; }
if (_termy > obj.height) _termy = obj.height;
}
break;
case 'C': // Move cursor right n lines
if (argslen == 1) {
if (args[0] == 0) { _termx++; } else { _termx += args[0]; }
if (_termx > obj.width) _termx = obj.width;
}
break;
case 'D': // Move cursor left n lines
if (argslen == 1) {
if (args[0] == 0) { _termx--; } else { _termx -= args[0]; }
if (_termx < 0) _termx = 0;
}
break;
case 'd': // Set cursor to line n
if (argslen == 1) {
_termy = args[0] - 1;
if (_termy > obj.height) _termy = obj.height;
if (_termy < 0) _termy = 0;
}
break;
case 'G': // Set cursor to col n
if (argslen == 1) {
_termx = args[0] - 1;
if (_termx < 0) _termx = 0;
if (_termx > 79) _termx = 79;
}
break;
case 'P': // Delete X Character(s), default 1 char
var x = 1;
if (argslen == 1) { x = args[0]; }
for (i = _termx; i < 80 - x; i++) { _tscreen[_termy][i] = _tscreen[_termy][i + x]; _scratt[_termy][i] = _scratt[_termy][i + x]; }
for (i = (80 - x); i < 80; i++) { _tscreen[_termy][i] = ' '; _scratt[_termy][i] = (7 << 6); }
break;
case 'L': // Insert X Line(s), default 1 char
var linecount = 1;
if (argslen == 1) { linecount = args[0]; }
if (linecount == 0) { linecount = 1; }
for (y = _scrollRegion[1]; y >= _termy + linecount; y--) {
_tscreen[y] = _tscreen[y - linecount];
_scratt[y] = _scratt[y - linecount];
}
for (y = _termy; y < _termy + linecount; y++) {
_tscreen[y] = [];
_scratt[y] = [];
for (x = 0; x < obj.width; x++) { _tscreen[y][x] = ' '; _scratt[y][x] = (7 << 6); }
}
break;
case 'J': // ClearScreen:
if (argslen == 1 && args[0] == 2) {
obj.TermClear((_TermCurrentBColor << 12) + (_TermCurrentFColor << 6)); // Erase entire screen
_termx = 0;
_termy = 0;
}
else if (argslen == 0 || argslen == 1 && args[0] == 0) // Erase cursor down
{
_EraseCursorToEol();
for (i = _termy + 1; i < obj.height; i++) _EraseLine(i);
}
else if (argslen == 1 && args[0] == 1) // Erase cursor up
{
_EraseCursorToEol();
for (i = 0; i < _termy - 1; i++) _EraseLine(i);
}
break;
case 'H': // MoveCursor:
if (argslen == 2) {
if (args[0] < 1) args[0] = 1;
if (args[1] < 1) args[1] = 1;
if (args[0] > obj.height) args[0] = obj.height;
if (args[1] > obj.width) args[1] = obj.width;
_termy = args[0] - 1;
_termx = args[1] - 1;
} else {
_termy = 0;
_termx = 0;
}
break;
case 'm': // ScreenAttribs:
// Change attributes
for (i = 0; i < argslen; i++) {
if (!args[i] || args[i] == 0) {
// Reset Attributes
_TermCurrentBColor = 0;
_TermCurrentFColor = 7;
_TermCurrentReverse = 0;
}
else if (args[i] == 1) {
// Bright
if (_TermCurrentFColor < 8) _TermCurrentFColor += 8;
}
else if (args[i] == 2 || args[i] == 22) {
// Dim
if (_TermCurrentFColor >= 8) _TermCurrentFColor -= 8;
}
else if (args[i] == 7) {
// Set Reverse attribute true
_TermCurrentReverse = 2;
}
else if (args[i] == 27) {
// Set Reverse attribute false
_TermCurrentReverse = 0;
}
else if (args[i] >= 30 && args[i] <= 37) {
// Set Foreground Color
var bright = (_TermCurrentFColor >= 8);
_TermCurrentFColor = (args[i] - 30);
if (bright && _TermCurrentFColor <= 8) _TermCurrentFColor += 8;
}
else if (args[i] >= 40 && args[i] <= 47) {
// Set Background Color
_TermCurrentBColor = (args[i] - 40);
}
else if (args[i] >= 90 && args[i] <= 99) {
// Set Bright Foreground Color
_TermCurrentFColor = (args[i] - 82);
}
else if (args[i] >= 100 && args[i] <= 109) {
// Set Bright Background Color
_TermCurrentBColor = (args[i] - 92);
}
}
break;
case 'K': // EraseLine:
if (argslen == 0 || (argslen == 1 && (!args[0] || args[0] == 0))) {
_EraseCursorToEol(); // Erase from the cursor to the end of the line
} else if (argslen == 1) {
if (args[0] == 1) { // Erase from the beginning of the line to the cursor
_EraseBolToCursor();
} else if (args[0] == 2) { // Erase the line with the cursor
_EraseLine(_termy);
}
}
break;
case 'h': // EnableLineWrap:
_TermLineWrap = true;
break;
case 'l': // DisableLineWrap:
_TermLineWrap = false;
break;
case 'r': // Set the scroll region
if (argslen == 2) { _scrollRegion = [args[0] - 1, args[1] - 1]; }
if (_scrollRegion[0] < 0) { _scrollRegion[0] = 0; }
if (_scrollRegion[0] > 24) { _scrollRegion[0] = 24; }
if (_scrollRegion[1] < 0) { _scrollRegion[1] = 0; }
if (_scrollRegion[1] > 24) { _scrollRegion[1] = 24; }
if (_scrollRegion[0] > _scrollRegion[1]) { _scrollRegion[0] = _scrollRegion[1]; }
break;
case 'S': // Scroll up the scroll region X lines, default 1
var x = 1;
if (argslen == 1) { x = args[0] }
for (var y = _scrollRegion[0]; y <= _scrollRegion[1] - x; y++) {
for (var z = 0; z < obj.width; z++) { _tscreen[y][z] = _tscreen[y + x][z]; _scratt[y][z] = _scratt[y + x][z]; }
}
for (var y = _scrollRegion[1] - x + 1; y < _scrollRegion[1]; y++) {
for (var z = 0; z < obj.width; z++) { _tscreen[y][z] = ' '; _scratt[y][z] = (7 << 6); }
}
break;
case 'M': // Delete X lines, default 1
var x = 1;
if (argslen == 1) { x = args[0] }
for (var y = _termy; y <= _scrollRegion[1] - x; y++) {
for (var z = 0; z < obj.width; z++) { _tscreen[y][z] = _tscreen[y + x][z]; _scratt[y][z] = _scratt[y + x][z]; }
}
for (var y = _scrollRegion[1] - x + 1; y < _scrollRegion[1]; y++) {
for (var z = 0; z < obj.width; z++) { _tscreen[y][z] = ' '; _scratt[y][z] = (7 << 6); }
}
break;
case 'T': // Scroll down the scroll region X lines, default 1
var x = 1;
if (argslen == 1) { x = args[0] }
for (var y = _scrollRegion[1]; y > _scrollRegion[0] + x; y--) {
for (var z = 0; z < obj.width; z++) { _tscreen[y][z] = _tscreen[y - x][z]; _scratt[y][z] = _scratt[y - x][z]; }
}
for (var y = _scrollRegion[0] + x; y > _scrollRegion[0]; y--) {
for (var z = 0; z < obj.width; z++) { _tscreen[y][z] = ' '; _scratt[y][z] = (7 << 6); }
}
break;
case 'X': // Erase X characters, default 1 (untested)
var x = 1;
if (argslen == 1) { x = args[0] }
while ((x > 0) && (_termx > 0)) { _tscreen[_termy][_termx] = ' '; _termx--; x--; }
break;
default:
//if (code != '@') alert(code);
console.log('unknown terminal code', code, args, mode);
break;
}
}
}
obj.ProcessVt100String = function (str) {
for (var i = 0; i < str.length; i++) _ProcessVt100Char(String.fromCharCode(str.charCodeAt(i)));
}
// ###BEGIN###{Terminal-Enumation-All}
var AsciiToUnicode = [
0x00c7, 0x00fc, 0x00e9, 0x00e2, 0x00e4, 0x00e0, 0x00e5, 0x00e7,
0x00ea, 0x00eb, 0x00e8, 0x00ef, 0x00ee, 0x00ec, 0x00c4, 0x00c5,
0x00c9, 0x00e6, 0x00c6, 0x00f4, 0x00f6, 0x00f2, 0x00fb, 0x00f9,
0x00ff, 0x00d6, 0x00dc, 0x00a2, 0x00a3, 0x00a5, 0x20a7, 0x0192,
0x00e1, 0x00ed, 0x00f3, 0x00fa, 0x00f1, 0x00d1, 0x00aa, 0x00da,
0x00bf, 0x2310, 0x00ac, 0x00bd, 0x00bc, 0x00a1, 0x00ab, 0x00bb,
0x2593, 0x2592, 0x2591, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
0x2555, 0x2563, 0x2551, 0x2557, 0x255d, 0x255c, 0x255b, 0x2510,
0x2514, 0x2534, 0x252c, 0x251c, 0x2500, 0x253c, 0x255e, 0x255f,
0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256c, 0x2567,
0x2568, 0x2564, 0x2565, 0x2568, 0x2558, 0x2552, 0x2553, 0x256b,
0x256a, 0x2518, 0x250c, 0x2588, 0x2584, 0x258b, 0x2590, 0x2580,
0x03b1, 0x00df, 0x0393, 0x03c0, 0x03a3, 0x03c3, 0x00b5, 0x03c4,
0x03c6, 0x03b8, 0x2126, 0x03b4, 0x221e, 0x00f8, 0x03b5, 0x220f,
0x2261, 0x00b1, 0x2265, 0x2266, 0x2320, 0x2321, 0x00f7, 0x2248,
0x00b0, 0x2022, 0x00b7, 0x221a, 0x207f, 0x00b2, 0x220e, 0x00a0
];
var AsciiToUnicodeIntel = [
0x00c7, 0x00fc, 0x00e9, 0x00e2, 0x00e4, 0x00e0, 0x00e5, 0x00e7,
0x00ea, 0x00eb, 0x00e8, 0x00ef, 0x00ee, 0x00ec, 0x00c4, 0x00c5,
0x00c9, 0x00e6, 0x00c6, 0x00f4, 0x00f6, 0x00f2, 0x00fb, 0x00f9,
0x00ff, 0x00d6, 0x00dc, 0x00a2, 0x00a3, 0x00a5, 0x20a7, 0x0192,
0x00e1, 0x00ed, 0x00f3, 0x00fa, 0x00f1, 0x00d1, 0x00aa, 0x00da,
0x00bf, 0x2310, 0x00ac, 0x00bd, 0x00bc, 0x00a1, 0x00ae, 0x00bb,
0x2593, 0x2592, 0x2591, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
0x2555, 0x2563, 0x2551, 0x2557, 0x255d, 0x255c, 0x255b, 0x2510,
0x2514, 0x2534, 0x252c, 0x251c, 0x2500, 0x253c, 0x255e, 0x255f,
0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256c, 0x2567,
0x2568, 0x2564, 0x2565, 0x2568, 0x2558, 0x2552, 0x2553, 0x256b,
0x256a, 0x2518, 0x250c, 0x2588, 0x2584, 0x258b, 0x2590, 0x2580,
0x03b1, 0x00df, 0x0393, 0x03c0, 0x03a3, 0x03c3, 0x00b5, 0x03c4,
0x03c6, 0x03b8, 0x2126, 0x03b4, 0x221e, 0x00f8, 0x03b5, 0x220f,
0x2261, 0x00b1, 0x2265, 0x2266, 0x2320, 0x2321, 0x00f7, 0x2248,
0x00b0, 0x2022, 0x00b7, 0x221a, 0x207f, 0x00b2, 0x220e, 0x00a0
];
// ###END###{Terminal-Enumation-All}
// ###BEGIN###{Terminal-Enumation-ASCII}
var AsciiToUnicode = [
0x00c7, 0x00fc, 0x00e9, 0x00e2, 0x00e4, 0x00e0, 0x00e5, 0x00e7,
0x00ea, 0x00eb, 0x00e8, 0x00ef, 0x00ee, 0x00ec, 0x00c4, 0x00c5,
0x00c9, 0x00e6, 0x00c6, 0x00f4, 0x00f6, 0x00f2, 0x00fb, 0x00f9,
0x00ff, 0x00d6, 0x00dc, 0x00a2, 0x00a3, 0x00a5, 0x20a7, 0x0192,
0x00e1, 0x00ed, 0x00f3, 0x00fa, 0x00f1, 0x00d1, 0x00aa, 0x00da,
0x00bf, 0x2310, 0x00ac, 0x00bd, 0x00bc, 0x00a1, 0x00ab, 0x00bb,
0x2593, 0x2592, 0x2591, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
0x2555, 0x2563, 0x2551, 0x2557, 0x255d, 0x255c, 0x255b, 0x2510,
0x2514, 0x2534, 0x252c, 0x251c, 0x2500, 0x253c, 0x255e, 0x255f,
0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256c, 0x2567,
0x2568, 0x2564, 0x2565, 0x2568, 0x2558, 0x2552, 0x2553, 0x256b,
0x256a, 0x2518, 0x250c, 0x2588, 0x2584, 0x258b, 0x2590, 0x2580,
0x03b1, 0x00df, 0x0393, 0x03c0, 0x03a3, 0x03c3, 0x00b5, 0x03c4,
0x03c6, 0x03b8, 0x2126, 0x03b4, 0x221e, 0x00f8, 0x03b5, 0x220f,
0x2261, 0x00b1, 0x2265, 0x2266, 0x2320, 0x2321, 0x00f7, 0x2248,
0x00b0, 0x2022, 0x00b7, 0x221a, 0x207f, 0x00b2, 0x220e, 0x00a0
];
// ###END###{Terminal-Enumation-ASCII}
// ###BEGIN###{Terminal-Enumation-Intel}
var AsciiToUnicodeIntel = [
0x00c7, 0x00fc, 0x00e9, 0x00e2, 0x00e4, 0x00e0, 0x00e5, 0x00e7,
0x00ea, 0x00eb, 0x00e8, 0x00ef, 0x00ee, 0x00ec, 0x00c4, 0x00c5,
0x00c9, 0x00e6, 0x00c6, 0x00f4, 0x00f6, 0x00f2, 0x00fb, 0x00f9,
0x00ff, 0x00d6, 0x00dc, 0x00a2, 0x00a3, 0x00a5, 0x20a7, 0x0192,
0x00e1, 0x00ed, 0x00f3, 0x00fa, 0x00f1, 0x00d1, 0x00aa, 0x00da,
0x00bf, 0x2310, 0x00ac, 0x00bd, 0x00bc, 0x00a1, 0x00ae, 0x00bb,
0x2593, 0x2592, 0x2591, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
0x2555, 0x2563, 0x2551, 0x2557, 0x255d, 0x255c, 0x255b, 0x2510,
0x2514, 0x2534, 0x252c, 0x251c, 0x2500, 0x253c, 0x255e, 0x255f,
0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256c, 0x2567,
0x2568, 0x2564, 0x2565, 0x2568, 0x2558, 0x2552, 0x2553, 0x256b,
0x256a, 0x2518, 0x250c, 0x2588, 0x2584, 0x258b, 0x2590, 0x2580,
0x03b1, 0x00df, 0x0393, 0x03c0, 0x03a3, 0x03c3, 0x00b5, 0x03c4,
0x03c6, 0x03b8, 0x2126, 0x03b4, 0x221e, 0x00f8, 0x03b5, 0x220f,
0x2261, 0x00b1, 0x2265, 0x2266, 0x2320, 0x2321, 0x00f7, 0x2248,
0x00b0, 0x2022, 0x00b7, 0x221a, 0x207f, 0x00b2, 0x220e, 0x00a0
];
// ###END###{Terminal-Enumation-Intel}
function _ProcessVt100Char(c) {
if (c == '\0' || c.charCodeAt() == 7) return; // Ignore null & bell
var ch = c.charCodeAt();
//console.log('_ProcessVt100Char', ch, c);
// ###BEGIN###{Terminal-Enumation-All}
// UTF8 Terminal
if (obj.terminalEmulation == 1) {
// ANSI - Extended ASCII emulation.
if ((ch & 0x80) != 0) { c = String.fromCharCode(AsciiToUnicode[ch & 0x7F]); }
} else if (obj.terminalEmulation == 2) {
// ANSI - Intel Extended ASCII emulation.
if ((ch & 0x80) != 0) { c = String.fromCharCode(AsciiToUnicodeIntel[ch & 0x7F]); }
}
// ###END###{Terminal-Enumation-All}
// ###BEGIN###{Terminal-Enumation-ASCII}
// ANSI - Extended ASCII emulation.
//if ((ch & 0x80) != 0) { c = String.fromCharCode(AsciiToUnicode[ch & 0x7F]); }
// ###END###{Terminal-Enumation-ASCII}
// ###BEGIN###{Terminal-Enumation-Intel}
// ANSI - Intel Extended ASCII emulation.
//if ((ch & 0x80) != 0) { c = String.fromCharCode(AsciiToUnicodeIntel[ch & 0x7F]); }
// ###END###{Terminal-Enumation-Intel}
//if (ch < 32 && ch != 10 && ch != 13) alert(ch);
switch (ch) {
case 16: { c = ' '; break; } // This is an odd char that show up on Intel BIOS's.
case 24: { c = '↑'; break; }
case 25: { c = '↓'; break; }
}
if (_termx > obj.width) _termx = obj.width;
if (_termy > (obj.height - 1)) _termy = (obj.height - 1);
switch (c) {
case '\b': // Backspace
if (_termx > 0) {
_termx--;
if (_backSpaceErase) { _TermDrawChar(' '); }
}
break;
case '\t': // tab
var tab = 8 - (_termx % 8)
for (var x = 0; x < tab; x++) _ProcessVt100Char(" ");
break;
case '\n': // Linefeed
_termy++;
if (_termy > _scrollRegion[1]) {
// Move everything up one line
_TermMoveUp(1);
_termy = _scrollRegion[1];
}
if (obj.lineFeed = '\r') { _termx = 0; } // *** If we are in Linux mode, \n will also return the cursor to the first col
break;
case '\r': // Carriage Return
_termx = 0;
break;
default:
if (_termx >= obj.width) {
_termx = 0;
if (_TermLineWrap) { _termy++; }
if (_termy >= (obj.height - 1)) { _TermMoveUp(1); _termy = (obj.height - 1); }
}
_TermDrawChar(c);
_termx++;
break;
}
}
function _TermDrawChar(c) {
_tscreen[_termy][_termx] = c;
_scratt[_termy][_termx] = (_TermCurrentFColor << 6) + (_TermCurrentBColor << 12) + _TermCurrentReverse;
}
obj.TermClear = function(TermColor) {
for (var y = 0; y < obj.height; y++) {
for (var x = 0; x < obj.width; x++) {
_tscreen[y][x] = ' ';
_scratt[y][x] = TermColor;
}
}
}
obj.TermResetScreen = function () {
_TermCurrentReverse = 0;
_TermCurrentFColor = 7;
_TermCurrentBColor = 0;
_TermLineWrap = _cursorVisible = true;
_termx = _termy = 0;
_backSpaceErase = false;
_scrollRegion = [0, 24];
_altKeypadMode = false;
obj.TermClear(7 << 6);
}
function _EraseCursorToEol() {
var t = (_TermCurrentFColor << 6) + (_TermCurrentBColor << 12) + _TermCurrentReverse;
for (var x = _termx; x < obj.width; x++) {
_tscreen[_termy][x] = ' ';
_scratt[_termy][x] = t;
}
}
function _EraseBolToCursor() {
var t = (_TermCurrentFColor << 6) + (_TermCurrentBColor << 12) + _TermCurrentReverse;
for (var x = 0; x < _termx; x++) {
_tscreen[_termy][x] = ' ';
_scratt[_termy][x] = t;
}
}
function _EraseLine(line) {
var t = (_TermCurrentFColor << 6) + (_TermCurrentBColor << 12) + _TermCurrentReverse;
for (var x = 0; x < obj.width; x++) {
_tscreen[line][x] = ' ';
_scratt[line][x] = t;
}
}
obj.TermSendKeys = function (keys) { if (obj.debugmode == 2) { if (obj.debugmode == 2) { console.log("TSend(" + keys.length + "): " + rstr2hex(keys)); } } obj.parent.send(keys); }
obj.TermSendKey = function (key) { if (obj.debugmode == 2) { if (obj.debugmode == 2) { console.log("TSend(1): " + rstr2hex(String.fromCharCode(key))); } } obj.parent.send(String.fromCharCode(key)); }
function _TermMoveUp(linecount) {
var x, y;
for (y = _scrollRegion[0]; y <= _scrollRegion[1] - linecount; y++) {
_tscreen[y] = _tscreen[y + linecount];
_scratt[y] = _scratt[y + linecount];
}
for (y = _scrollRegion[1] - linecount + 1; y <= _scrollRegion[1]; y++) {
_tscreen[y] = [];
_scratt[y] = [];
for (x = 0; x < obj.width; x++) {
_tscreen[y][x] = ' ';
_scratt[y][x] = (7 << 6);
}
}
}
obj.TermHandleKeys = function (e) {
if (!e.ctrlKey) {
if (e.which == 127) obj.TermSendKey(8);
else if (e.which == 13) { obj.TermSendKeys(obj.lineFeed); }
else if (e.which != 0) obj.TermSendKey(e.which);
return false;
}
if (e.preventDefault) e.preventDefault();
if (e.stopPropagation) e.stopPropagation();
}
obj.TermHandleKeyUp = function (e) {
if ((e.which != 8) && (e.which != 32) && (e.which != 9)) return true;
if (e.preventDefault) e.preventDefault();
if (e.stopPropagation) e.stopPropagation();
return false;
}
obj.TermHandleKeyDown = function (e) {
if ((e.which >= 65) && (e.which <= 90) && (e.ctrlKey == true)) {
obj.TermSendKey(e.which - 64);
if (e.preventDefault) e.preventDefault();
if (e.stopPropagation) e.stopPropagation();
return;
}
if (e.which == 27) { obj.TermSendKeys(String.fromCharCode(27)); return true; }; // ESC
if (_altKeypadMode == true) {
if (e.which == 37) { obj.TermSendKeys(String.fromCharCode(27, 79, 68)); return true; }; // Left
if (e.which == 38) { obj.TermSendKeys(String.fromCharCode(27, 79, 65)); return true; }; // Up
if (e.which == 39) { obj.TermSendKeys(String.fromCharCode(27, 79, 67)); return true; }; // Right
if (e.which == 40) { obj.TermSendKeys(String.fromCharCode(27, 79, 66)); return true; }; // Down
} else {
if (e.which == 37) { obj.TermSendKeys(String.fromCharCode(27, 91, 68)); return true; }; // Left
if (e.which == 38) { obj.TermSendKeys(String.fromCharCode(27, 91, 65)); return true; }; // Up
if (e.which == 39) { obj.TermSendKeys(String.fromCharCode(27, 91, 67)); return true; }; // Right
if (e.which == 40) { obj.TermSendKeys(String.fromCharCode(27, 91, 66)); return true; }; // Down
}
if (e.which == 33) { obj.TermSendKeys(String.fromCharCode(27, 91, 53, 126)); return true; }; // PageUp
if (e.which == 34) { obj.TermSendKeys(String.fromCharCode(27, 91, 54, 126)); return true; }; // PageDown
if (e.which == 35) { obj.TermSendKeys(String.fromCharCode(27, 91, 70)); return true; }; // End
if (e.which == 36) { obj.TermSendKeys(String.fromCharCode(27, 91, 72)); return true; }; // Home
if (e.which == 45) { obj.TermSendKeys(String.fromCharCode(27, 91, 50, 126)); return true; }; // Insert
if (e.which == 46) { obj.TermSendKeys(String.fromCharCode(27, 91, 51, 126)); return true; }; // Delete
if (e.which == 9) { obj.TermSendKeys("\t"); if (e.preventDefault) e.preventDefault(); if (e.stopPropagation) e.stopPropagation(); return true; }; // TAB
// F1 to F12 keys
// ###BEGIN###{Terminal-FxEnumation-All}
var fx0 = [80, 81, 119, 120, 116, 117, 113, 114, 112, 77];
var fx1 = [49, 50, 51, 52, 53, 54, 55, 56, 57, 48, 33, 64];
var fx2 = [80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91];
if (e.which > 111 & e.which < 124 && e.repeat == false) { // F1 to F12 keys
if (obj.fxEmulation == 0 && e.which < 122) { obj.TermSendKeys(String.fromCharCode(27, 91, 79, fx0[e.which - 112])); return true; } // 'Intel (F10 = ESC+[OM)'
if (obj.fxEmulation == 1) { obj.TermSendKeys(String.fromCharCode(27, fx1[e.which - 112])); return true; } // 'Alternate (F10 = ESC+0)'
if (obj.fxEmulation == 2) { obj.TermSendKeys(String.fromCharCode(27, 79, fx2[e.which - 112])); return true; } // 'VT100+ (F10 = ESC+[OY)'
}
// ###END###{Terminal-FxEnumation-All}
// ###BEGIN###{Terminal-FxEnumation-Intel}
var fx0 = [80, 81, 119, 120, 116, 117, 113, 114, 112, 77];
if (e.which > 111 & e.which < 122 && e.repeat == false) { obj.TermSendKeys(String.fromCharCode(27, 91, 79, fx0[e.which - 112])); return true; } // 'Intel (F10 = ESC+[OM)'
// ###END###{Terminal-FxEnumation-Intel}
// ###BEGIN###{Terminal-FxEnumation-Alternate}
var fx1 = [49, 50, 51, 52, 53, 54, 55, 56, 57, 48, 33, 64];
if (e.which > 111 & e.which < 124 && e.repeat == false) { obj.TermSendKeys(String.fromCharCode(27, fx1[e.which - 112])); return true; } // 'Alternate (F10 = ESC+0)'
// ###END###{Terminal-FxEnumation-Alternate}
// ###BEGIN###{Terminal-FxEnumation-VT100Plus}
var fx2 = [80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91];
if (e.which > 111 & e.which < 124 && e.repeat == false) { obj.TermSendKeys(String.fromCharCode(27, 79, fx2[e.which - 112])); return true; } // 'VT100+ (F10 = ESC+[OY)'
// ###END###{Terminal-FxEnumation-VT100Plus}
if (e.which != 8 && e.which != 32 && e.which != 9) return true;
obj.TermSendKey(e.which);
if (e.preventDefault) e.preventDefault();
if (e.stopPropagation) e.stopPropagation();
return false;
}
obj.TermDraw = function() {
var c, buf = '', closetag = '', newat, oldat = 1, x1, x2;
for (var y = 0; y < obj.height; ++y) {
for (var x = 0; x < obj.width; ++x) {
newat = _scratt[y][x];
if (_termx == x && _termy == y && _cursorVisible) { newat |= _VTREVERSE; } // If this is the cursor location, reverse the color.
if (newat != oldat) {
buf += closetag;
closetag = '';
x1 = 6; x2 = 12;
if (newat & _VTREVERSE) { x1 = 12; x2 = 6; }
buf += '<span style="color:#' + _TermColors[(newat >> x1) & 0x3F] + ';background-color:#' + _TermColors[(newat >> x2) & 0x3F];
if (newat & _VTUNDERLINE) buf += ';text-decoration:underline';
buf += ';">';
closetag = "</span>" + closetag;
oldat = newat;
}
c = _tscreen[y][x];
switch (c) {
case '&': buf += '&amp;'; break;
case '<': buf += '&lt;'; break;
case '>': buf += '&gt;'; break;
case ' ': buf += '&nbsp;'; break;
default: buf += c; break;
}
}
if (y != (obj.height - 1)) buf += '<br>';
}
obj.DivElement.innerHTML = "<font size='4'><b>" + buf + closetag + "</b></font>";
}
obj.TermInit = function () { obj.TermResetScreen(); }
obj.Init();
return obj;
}
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