// VT100.js -- JavaScript based terminal emulator
// Copyright (C) 2008-2010 Markus Gutschke <[email protected]>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// In addition to these license terms, the author grants the following
// additional rights:
//
// If you modify this program, or any covered work, by linking or
// combining it with the OpenSSL project's OpenSSL library (or a
// modified version of that library), containing parts covered by the
// terms of the OpenSSL or SSLeay licenses, the author
// grants you additional permission to convey the resulting work.
// Corresponding Source for a non-source form of such a combination
// shall include the source code for the parts of OpenSSL used as well
// as that of the covered work.
//
// You may at your option choose to remove this additional permission from
// the work, or from any part of it.
//
// It is possible to build this program in a way that it loads OpenSSL
// libraries at run-time. If doing so, the following notices are required
// by the OpenSSL and SSLeay licenses:
//
// This product includes software developed by the OpenSSL Project
// for use in the OpenSSL Toolkit. (http://www.openssl.org/)
//
// This product includes cryptographic software written by Eric Young
// ([email protected])
//
//
// The most up-to-date version of this program is always available from
// http://shellinabox.com
//
//
// Notes:
//
// The author believes that for the purposes of this license, you meet the
// requirements for publishing the source code, if your web server publishes
// the source in unmodified form (i.e. with licensing information, comments,
// formatting, and identifier names intact). If there are technical reasons
// that require you to make changes to the source code when serving the
// JavaScript (e.g to remove pre-processor directives from the source), these
// changes should be done in a reversible fashion.
//
// The author does not consider websites that reference this script in
// unmodified form, and web servers that serve this script in unmodified form
// to be derived works. As such, they are believed to be outside of the
// scope of this license and not subject to the rights or restrictions of the
// GNU General Public License.
//
// If in doubt, consult a legal professional familiar with the laws that
// apply in your country.
// #define ESnormal 0
// #define ESesc 1
// #define ESsquare 2
// #define ESgetpars 3
// #define ESgotpars 4
// #define ESdeviceattr 5
// #define ESfunckey 6
// #define EShash 7
// #define ESsetG0 8
// #define ESsetG1 9
// #define ESsetG2 10
// #define ESsetG3 11
// #define ESbang 12
// #define ESpercent 13
// #define ESignore 14
// #define ESnonstd 15
// #define ESpalette 16
// #define EStitle 17
// #define ESss2 18
// #define ESss3 19
// #define ATTR_DEFAULT 0x00F0
// #define ATTR_REVERSE 0x0100
// #define ATTR_UNDERLINE 0x0200
// #define ATTR_DIM 0x0400
// #define ATTR_BRIGHT 0x0800
// #define ATTR_BLINK 0x1000
// #define MOUSE_DOWN 0
// #define MOUSE_UP 1
// #define MOUSE_CLICK 2
function VT100(container) {
if (typeof linkifyURLs == 'undefined' || linkifyURLs <= 0) {
this.urlRE = null;
} else {
this.urlRE = new RegExp(
// Known URL protocol are "http", "https", and "ftp".
'(?:http|https|ftp)://' +
// Optionally allow username and passwords.
'(?:[^:@/ \u00A0]*(?::[^@/ \u00A0]*)?@)?' +
// Hostname.
'(?:[1-9][0-9]{0,2}(?:[.][1-9][0-9]{0,2}){3}|' +
'[0-9a-fA-F]{0,4}(?::{1,2}[0-9a-fA-F]{1,4})+|' +
'(?!-)[^[!"#$%&\'()*+,/:;<=>?@\\^_`{|}~\u0000- \u007F-\u00A0]+)' +
// Port
'(?::[1-9][0-9]*)?' +
// Path.
'(?:/(?:(?![/ \u00A0]|[,.)}"\u0027!]+[ \u00A0]|[,.)}"\u0027!]+$).)*)*|' +
(linkifyURLs <= 1 ? '' :
// Also support URLs without a protocol (assume "http").
// Optional username and password.
'(?:[^:@/ \u00A0]*(?::[^@/ \u00A0]*)?@)?' +
// Hostnames must end with a well-known top-level domain or must be
// numeric.
'(?:[1-9][0-9]{0,2}(?:[.][1-9][0-9]{0,2}){3}|' +
'localhost|' +
'(?:(?!-)' +
'[^.[!"#$%&\'()*+,/:;<=>?@\\^_`{|}~\u0000- \u007F-\u00A0]+[.]){2,}' +
'(?:(?:com|net|org|edu|gov|aero|asia|biz|cat|coop|info|int|jobs|mil|mobi|'+
'museum|name|pro|tel|travel|ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|' +
'au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|' +
'ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cu|cv|cx|cy|cz|de|dj|dk|dm|do|' +
'dz|ec|ee|eg|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|' +
'gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|' +
'ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|' +
'lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|' +
'mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|' +
'pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|' +
'sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tl|tm|tn|to|' +
'tp|tr|tt|tv|tw|tz|ua|ug|uk|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|' +
'yu|za|zm|zw|arpa)(?![a-zA-Z0-9])|[Xx][Nn]--[-a-zA-Z0-9]+))' +
// Port
'(?::[1-9][0-9]{0,4})?' +
// Path.
'(?:/(?:(?![/ \u00A0]|[,.)}"\u0027!]+[ \u00A0]|[,.)}"\u0027!]+$).)*)*|') +
// In addition, support e-mail address. Optionally, recognize "mailto:"
'(?:mailto:)' + (linkifyURLs <= 1 ? '' : '?') +
// Username:
'[-_.+a-zA-Z0-9]+@' +
// Hostname.
'(?!-)[-a-zA-Z0-9]+(?:[.](?!-)[-a-zA-Z0-9]+)?[.]' +
'(?:(?:com|net|org|edu|gov|aero|asia|biz|cat|coop|info|int|jobs|mil|mobi|'+
'museum|name|pro|tel|travel|ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|' +
'au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|' +
'ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cu|cv|cx|cy|cz|de|dj|dk|dm|do|' +
'dz|ec|ee|eg|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|' +
'gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|' +
'ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|' +
'lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|' +
'mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|' +
'pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|' +
'sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tl|tm|tn|to|' +
'tp|tr|tt|tv|tw|tz|ua|ug|uk|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|' +
'yu|za|zm|zw|arpa)(?![a-zA-Z0-9])|[Xx][Nn]--[-a-zA-Z0-9]+)' +
// Optional arguments
'(?:[?](?:(?![ \u00A0]|[,.)}"\u0027!]+[ \u00A0]|[,.)}"\u0027!]+$).)*)?');
}
this.getUserSettings();
this.initializeElements(container);
this.maxScrollbackLines = 500;
this.npar = 0;
this.par = [ ];
this.isQuestionMark = false;
this.savedX = [ ];
this.savedY = [ ];
this.savedAttr = [ ];
this.savedUseGMap = 0;
this.savedGMap = [ this.Latin1Map, this.VT100GraphicsMap,
this.CodePage437Map, this.DirectToFontMap ];
this.savedValid = [ ];
this.respondString = '';
this.titleString = '';
this.internalClipboard = undefined;
this.reset(true);
}
VT100.prototype.reset = function(clearHistory) {
this.isEsc = 0 /* ESnormal */;
this.needWrap = false;
this.autoWrapMode = true;
this.dispCtrl = false;
this.toggleMeta = false;
this.insertMode = false;
this.applKeyMode = false;
this.cursorKeyMode = false;
this.crLfMode = false;
this.offsetMode = false;
this.mouseReporting = false;
this.printing = false;
if (typeof this.printWin != 'undefined' &&
this.printWin && !this.printWin.closed) {
this.printWin.close();
}
this.printWin = null;
this.utfEnabled = this.utfPreferred;
this.utfCount = 0;
this.utfChar = 0;
this.color = 'ansi0 bgAnsi15';
this.style = '';
this.attr = 0x00F0 /* ATTR_DEFAULT */;
this.useGMap = 0;
this.GMap = [ this.Latin1Map,
this.VT100GraphicsMap,
this.CodePage437Map,
this.DirectToFontMap];
this.translate = this.GMap[this.useGMap];
this.top = 0;
this.bottom = this.terminalHeight;
this.lastCharacter = ' ';
this.userTabStop = [ ];
if (clearHistory) {
for (var i = 0; i < 2; i++) {
while (this.console[i].firstChild) {
this.console[i].removeChild(this.console[i].firstChild);
}
}
}
this.enableAlternateScreen(false);
var wasCompressed = false;
var transform = this.getTransformName();
if (transform) {
for (var i = 0; i < 2; ++i) {
wasCompressed |= this.console[i].style[transform] != '';
this.console[i].style[transform] = '';
}
this.cursor.style[transform] = '';
this.space.style[transform] = '';
if (transform == 'filter') {
this.console[this.currentScreen].style.width = '';
}
}
this.scale = 1.0;
if (wasCompressed) {
this.resizer();
}
this.gotoXY(0, 0);
this.showCursor();
this.isInverted = false;
this.refreshInvertedState();
this.clearRegion(0, 0, this.terminalWidth, this.terminalHeight,
this.color, this.style);
};
VT100.prototype.addListener = function(elem, event, listener) {
try {
if (elem.addEventListener) {
elem.addEventListener(event, listener, false);
} else {
elem.attachEvent('on' + event, listener);
}
} catch (e) {
}
};
VT100.prototype.getUserSettings = function() {
// Compute hash signature to identify the entries in the userCSS menu.
// If the menu is unchanged from last time, default values can be
// looked up in a cookie associated with this page.
this.signature = 3;
this.utfPreferred = true;
this.visualBell = typeof suppressAllAudio != 'undefined' &&
suppressAllAudio;
this.autoprint = true;
this.softKeyboard = false;
this.blinkingCursor = true;
if (this.visualBell) {
this.signature = Math.floor(16807*this.signature + 1) %
((1 << 31) - 1);
}
if (typeof userCSSList != 'undefined') {
for (var i = 0; i < userCSSList.length; ++i) {
var label = userCSSList[i][0];
for (var j = 0; j < label.length; ++j) {
this.signature = Math.floor(16807*this.signature+
label.charCodeAt(j)) %
((1 << 31) - 1);
}
if (userCSSList[i][1]) {
this.signature = Math.floor(16807*this.signature + 1) %
((1 << 31) - 1);
}
}
}
var key = 'shellInABox=' + this.signature + ':';
var settings = document.cookie.indexOf(key);
if (settings >= 0) {
settings = document.cookie.substr(settings + key.length).
replace(/([0-1]*).*/, "$1");
if (settings.length == 5 + (typeof userCSSList == 'undefined' ?
0 : userCSSList.length)) {
this.utfPreferred = settings.charAt(0) != '0';
this.visualBell = settings.charAt(1) != '0';
this.autoprint = settings.charAt(2) != '0';
this.softKeyboard = settings.charAt(3) != '0';
this.blinkingCursor = settings.charAt(4) != '0';
if (typeof userCSSList != 'undefined') {
for (var i = 0; i < userCSSList.length; ++i) {
userCSSList[i][2] = settings.charAt(i + 5) != '0';
}
}
}
}
this.utfEnabled = this.utfPreferred;
};
VT100.prototype.storeUserSettings = function() {
var settings = 'shellInABox=' + this.signature + ':' +
(this.utfEnabled ? '1' : '0') +
(this.visualBell ? '1' : '0') +
(this.autoprint ? '1' : '0') +
(this.softKeyboard ? '1' : '0') +
(this.blinkingCursor ? '1' : '0');
if (typeof userCSSList != 'undefined') {
for (var i = 0; i < userCSSList.length; ++i) {
settings += userCSSList[i][2] ? '1' : '0';
}
}
var d = new Date();
d.setDate(d.getDate() + 3653);
document.cookie = settings + ';expires=' + d.toGMTString();
};
VT100.prototype.initializeUserCSSStyles = function() {
this.usercssActions = [];
if (typeof userCSSList != 'undefined') {
var menu = '';
var group = '';
var wasSingleSel = 1;
var beginOfGroup = 0;
for (var i = 0; i <= userCSSList.length; ++i) {
if (i < userCSSList.length) {
var label = userCSSList[i][0];
var newGroup = userCSSList[i][1];
var enabled = userCSSList[i][2];
// Add user style sheet to document
var style = document.createElement('link');
var id = document.createAttribute('id');
id.nodeValue = 'usercss-' + i;
style.setAttributeNode(id);
var rel = document.createAttribute('rel');
rel.nodeValue = 'stylesheet';
style.setAttributeNode(rel);
var href = document.createAttribute('href');
href.nodeValue = 'usercss-' + i + '.css';
style.setAttributeNode(href);
var type = document.createAttribute('type');
type.nodeValue = 'text/css';
style.setAttributeNode(type);
document.getElementsByTagName('head')[0].appendChild(style);
style.disabled = !enabled;
}
// Add entry to menu
if (newGroup || i == userCSSList.length) {
if (beginOfGroup != 0 && (i - beginOfGroup > 1 || !wasSingleSel)) {
// The last group had multiple entries that are mutually exclusive;
// or the previous to last group did. In either case, we need to
// append a "<hr />" before we can add the last group to the menu.
menu += '<hr />';
}
wasSingleSel = i - beginOfGroup < 1;
menu += group;
group = '';
for (var j = beginOfGroup; j < i; ++j) {
this.usercssActions[this.usercssActions.length] =
function(vt100, current, begin, count) {
// Deselect all other entries in the group, then either select
// (for multiple entries in group) or toggle (for on/off entry)
// the current entry.
return function() {
var entry = vt100.getChildById(vt100.menu,
'beginusercss');
var i = -1;
var j = -1;
for (var c = count; c > 0; ++j) {
if (entry.tagName == 'LI') {
if (++i >= begin) {
--c;
var label = vt100.usercss.childNodes[j];
// Restore label to just the text content
if (typeof label.textContent == 'undefined') {
var s = label.innerText;
label.innerHTML = '';
label.appendChild(document.createTextNode(s));
} else {
label.textContent= label.textContent;
}
// User style sheets are numbered sequentially
var sheet = document.getElementById(
'usercss-' + i);
if (i == current) {
if (count == 1) {
sheet.disabled = !sheet.disabled;
} else {
sheet.disabled = false;
}
if (!sheet.disabled) {
label.innerHTML= '<img src="enabled.gif" />' +
label.innerHTML;
}
} else {
sheet.disabled = true;
}
userCSSList[i][2] = !sheet.disabled;
}
}
entry = entry.nextSibling;
}
// If the font size changed, adjust cursor and line dimensions
this.cursor.style.cssText= '';
this.cursorWidth = this.cursor.clientWidth;
this.cursorHeight = this.lineheight.clientHeight;
for (i = 0; i < this.console.length; ++i) {
for (var line = this.console[i].firstChild; line;
line = line.nextSibling) {
line.style.height = this.cursorHeight + 'px';
}
}
vt100.resizer();
};
}(this, j, beginOfGroup, i - beginOfGroup);
}
if (i == userCSSList.length) {
break;
}
beginOfGroup = i;
}
// Collect all entries in a group, before attaching them to the menu.
// This is necessary as we don't know whether this is a group of
// mutually exclusive options (which should be separated by "<hr />" on
// both ends), or whether this is a on/off toggle, which can be grouped
// together with other on/off options.
group +=
'<li>' + (enabled ? '<img src="enabled.gif" />' : '') +
label +
'</li>';
}
this.usercss.innerHTML = menu;
}
};
VT100.prototype.resetLastSelectedKey = function(e) {
var key = this.lastSelectedKey;
if (!key) {
return false;
}
var position = this.mousePosition(e);
// We don't get all the necessary events to reliably reselect a key
// if we moved away from it and then back onto it. We approximate the
// behavior by remembering the key until either we release the mouse
// button (we might never get this event if the mouse has since left
// the window), or until we move away too far.
var box = this.keyboard.firstChild;
if (position[0] < box.offsetLeft + key.offsetWidth ||
position[1] < box.offsetTop + key.offsetHeight ||
position[0] >= box.offsetLeft + box.offsetWidth - key.offsetWidth ||
position[1] >= box.offsetTop + box.offsetHeight - key.offsetHeight ||
position[0] < box.offsetLeft + key.offsetLeft - key.offsetWidth ||
position[1] < box.offsetTop + key.offsetTop - key.offsetHeight ||
position[0] >= box.offsetLeft + key.offsetLeft + 2*key.offsetWidth ||
position[1] >= box.offsetTop + key.offsetTop + 2*key.offsetHeight) {
if (this.lastSelectedKey.className) log.console('reset: deselecting');
this.lastSelectedKey.className = '';
this.lastSelectedKey = undefined;
}
return false;
};
VT100.prototype.showShiftState = function(state) {
var style = document.getElementById('shift_state');
if (state) {
this.setTextContentRaw(style,
'#vt100 #keyboard .shifted {' +
'display: inline }' +
'#vt100 #keyboard .unshifted {' +
'display: none }');
} else {
this.setTextContentRaw(style, '');
}
var elems = this.keyboard.getElementsByTagName('I');
for (var i = 0; i < elems.length; ++i) {
if (elems[i].id == '16') {
elems[i].className = state ? 'selected' : '';
}
}
};
VT100.prototype.showCtrlState = function(state) {
var ctrl = this.getChildById(this.keyboard, '17' /* Ctrl */);
if (ctrl) {
ctrl.className = state ? 'selected' : '';
}
};
VT100.prototype.showAltState = function(state) {
var alt = this.getChildById(this.keyboard, '18' /* Alt */);
if (alt) {
alt.className = state ? 'selected' : '';
}
};
VT100.prototype.clickedKeyboard = function(e, elem, ch, key, shift, ctrl, alt){
var fake = [ ];
fake.charCode = ch;
fake.keyCode = key;
fake.ctrlKey = ctrl;
fake.shiftKey = shift;
fake.altKey = alt;
fake.metaKey = alt;
return this.handleKey(fake);
};
VT100.prototype.addKeyBinding = function(elem, ch, key, CH, KEY) {
if (elem == undefined) {
return;
}
if (ch == '\u00A0') {
// should be treated as a regular space character.
ch = ' ';
}
if (ch != undefined && CH == undefined) {
// For letter keys, we automatically compute the uppercase character code
// from the lowercase one.
CH = ch.toUpperCase();
}
if (KEY == undefined && key != undefined) {
// Most keys have identically key codes for both lowercase and uppercase
// keypresses. Normally, only function keys would have distinct key codes,
// whereas regular keys have character codes.
KEY = key;
} else if (KEY == undefined && CH != undefined) {
// For regular keys, copy the character code to the key code.
KEY = CH.charCodeAt(0);
}
if (key == undefined && ch != undefined) {
// For regular keys, copy the character code to the key code.
key = ch.charCodeAt(0);
}
// Convert characters to numeric character codes. If the character code
// is undefined (i.e. this is a function key), set it to zero.
ch = ch ? ch.charCodeAt(0) : 0;
CH = CH ? CH.charCodeAt(0) : 0;
// Mouse down events high light the key. We also set lastSelectedKey. This
// is needed to that mouseout/mouseover can keep track of the key that
// is currently being clicked.
this.addListener(elem, 'mousedown',
function(vt100, elem, key) { return function(e) {
if ((e.which || e.button) == 1) {
if (vt100.lastSelectedKey) {
vt100.lastSelectedKey.className= '';
}
// Highlight the key while the mouse button is held down.
if (key == 16 /* Shift */) {
if (!elem.className != vt100.isShift) {
vt100.showShiftState(!vt100.isShift);
}
} else if (key == 17 /* Ctrl */) {
if (!elem.className != vt100.isCtrl) {
vt100.showCtrlState(!vt100.isCtrl);
}
} else if (key == 18 /* Alt */) {
if (!elem.className != vt100.isAlt) {
vt100.showAltState(!vt100.isAlt);
}
} else {
elem.className = 'selected';
}
vt100.lastSelectedKey = elem;
}
return false; }; }(this, elem, key));
var clicked =
// Modifier keys update the state of the keyboard, but do not generate
// any key clicks that get forwarded to the application.
key >= 16 /* Shift */ && key <= 18 /* Alt */ ?
function(vt100, elem) { return function(e) {
if (elem == vt100.lastSelectedKey) {
if (key == 16 /* Shift */) {
// The user clicked the Shift key
vt100.isShift = !vt100.isShift;
vt100.showShiftState(vt100.isShift);
} else if (key == 17 /* Ctrl */) {
vt100.isCtrl = !vt100.isCtrl;
vt100.showCtrlState(vt100.isCtrl);
} else if (key == 18 /* Alt */) {
vt100.isAlt = !vt100.isAlt;
vt100.showAltState(vt100.isAlt);
}
vt100.lastSelectedKey = undefined;
}
if (vt100.lastSelectedKey) {
vt100.lastSelectedKey.className = '';
vt100.lastSelectedKey = undefined;
}
return false; }; }(this, elem) :
// Regular keys generate key clicks, when the mouse button is released or
// when a mouse click event is received.
function(vt100, elem, ch, key, CH, KEY) { return function(e) {
if (vt100.lastSelectedKey) {
if (elem == vt100.lastSelectedKey) {
// The user clicked a key.
if (vt100.isShift) {
vt100.clickedKeyboard(e, elem, CH, KEY,
true, vt100.isCtrl, vt100.isAlt);
} else {
vt100.clickedKeyboard(e, elem, ch, key,
false, vt100.isCtrl, vt100.isAlt);
}
vt100.isShift = false;
vt100.showShiftState(false);
vt100.isCtrl = false;
vt100.showCtrlState(false);
vt100.isAlt = false;
vt100.showAltState(false);
}
vt100.lastSelectedKey.className = '';
vt100.lastSelectedKey = undefined;
}
elem.className = '';
return false; }; }(this, elem, ch, key, CH, KEY);
this.addListener(elem, 'mouseup', clicked);
this.addListener(elem, 'click', clicked);
// When moving the mouse away from a key, check if any keys need to be
// deselected.
this.addListener(elem, 'mouseout',
function(vt100, elem, key) { return function(e) {
if (key == 16 /* Shift */) {
if (!elem.className == vt100.isShift) {
vt100.showShiftState(vt100.isShift);
}
} else if (key == 17 /* Ctrl */) {
if (!elem.className == vt100.isCtrl) {
vt100.showCtrlState(vt100.isCtrl);
}
} else if (key == 18 /* Alt */) {
if (!elem.className == vt100.isAlt) {
vt100.showAltState(vt100.isAlt);
}
} else if (elem.className) {
elem.className = '';
vt100.lastSelectedKey = elem;
} else if (vt100.lastSelectedKey) {
vt100.resetLastSelectedKey(e);
}
return false; }; }(this, elem, key));
// When moving the mouse over a key, select it if the user is still holding
// the mouse button down (i.e. elem == lastSelectedKey)
this.addListener(elem, 'mouseover',
function(vt100, elem, key) { return function(e) {
if (elem == vt100.lastSelectedKey) {
if (key == 16 /* Shift */) {
if (!elem.className != vt100.isShift) {
vt100.showShiftState(!vt100.isShift);
}
} else if (key == 17 /* Ctrl */) {
if (!elem.className != vt100.isCtrl) {
vt100.showCtrlState(!vt100.isCtrl);
}
} else if (key == 18 /* Alt */) {
if (!elem.className != vt100.isAlt) {
vt100.showAltState(!vt100.isAlt);
}
} else if (!elem.className) {
elem.className = 'selected';
}
} else {
vt100.resetLastSelectedKey(e);
}
return false; }; }(this, elem, key));
};
VT100.prototype.initializeKeyBindings = function(elem) {
if (elem) {
if (elem.nodeName == "I" || elem.nodeName == "B") {
if (elem.id) {
// Function keys. The Javascript keycode is part of the "id"
var i = parseInt(elem.id);
if (i) {
// If the id does not parse as a number, it is not a keycode.
this.addKeyBinding(elem, undefined, i);
}
} else {
var child = elem.firstChild;
if (child) {
if (child.nodeName == "#text") {
// If the key only has a text node as a child, then it is a letter.
// Automatically compute the lower and upper case version of the
// key.
var text = this.getTextContent(child) ||
this.getTextContent(elem);
this.addKeyBinding(elem, text.toLowerCase());
} else if (child.nextSibling) {
// If the key has two children, they are the lower and upper case
// character code, respectively.
this.addKeyBinding(elem, this.getTextContent(child), undefined,
this.getTextContent(child.nextSibling));
}
}
}
}
}
// Recursively parse all other child nodes.
for (elem = elem.firstChild; elem; elem = elem.nextSibling) {
this.initializeKeyBindings(elem);
}
};
VT100.prototype.initializeKeyboardButton = function() {
// Configure mouse event handlers for button that displays/hides keyboard
this.addListener(this.keyboardImage, 'click',
function(vt100) { return function(e) {
if (vt100.keyboard.style.display != '') {
if (vt100.reconnectBtn.style.visibility != '') {
vt100.initializeKeyboard();
vt100.showSoftKeyboard();
}
} else {
vt100.hideSoftKeyboard();
vt100.input.focus();
}
return false; }; }(this));
// Enable button that displays keyboard
if (this.softKeyboard) {
this.keyboardImage.style.visibility = 'visible';
}
};
VT100.prototype.initializeKeyboard = function() {
// Only need to initialize the keyboard the very first time. When doing so,
// copy the keyboard layout from the iframe.
if (this.keyboard.firstChild) {
return;
}
this.keyboard.innerHTML =
this.layout.contentDocument.body.innerHTML;
var box = this.keyboard.firstChild;
this.hideSoftKeyboard();
// Configure mouse event handlers for on-screen keyboard
this.addListener(this.keyboard, 'click',
function(vt100) { return function(e) {
vt100.hideSoftKeyboard();
vt100.input.focus();
return false; }; }(this));
this.addListener(this.keyboard, 'selectstart', this.cancelEvent);
this.addListener(box, 'click', this.cancelEvent);
this.addListener(box, 'mouseup',
function(vt100) { return function(e) {
if (vt100.lastSelectedKey) {
vt100.lastSelectedKey.className = '';
vt100.lastSelectedKey = undefined;
}
return false; }; }(this));
this.addListener(box, 'mouseout',
function(vt100) { return function(e) {
return vt100.resetLastSelectedKey(e); }; }(this));
this.addListener(box, 'mouseover',
function(vt100) { return function(e) {
return vt100.resetLastSelectedKey(e); }; }(this));
// Configure SHIFT key behavior
var style = document.createElement('style');
var id = document.createAttribute('id');
id.nodeValue = 'shift_state';
style.setAttributeNode(id);
var type = document.createAttribute('type');
type.nodeValue = 'text/css';
style.setAttributeNode(type);
document.getElementsByTagName('head')[0].appendChild(style);
// Set up key bindings
this.initializeKeyBindings(box);
};
VT100.prototype.initializeElements = function(container) {
// If the necessary objects have not already been defined in the HTML
// page, create them now.
if (container) {
this.container = container;
} else if (!(this.container = document.getElementById('vt100'))) {
this.container = document.createElement('div');
this.container.id = 'vt100';
document.body.appendChild(this.container);
}
if (!this.getChildById(this.container, 'reconnect') ||
!this.getChildById(this.container, 'menu') ||
!this.getChildById(this.container, 'keyboard') ||
!this.getChildById(this.container, 'kbd_button') ||
!this.getChildById(this.container, 'kbd_img') ||
!this.getChildById(this.container, 'layout') ||
!this.getChildById(this.container, 'scrollable') ||
!this.getChildById(this.container, 'console') ||
!this.getChildById(this.container, 'alt_console') ||
!this.getChildById(this.container, 'ieprobe') ||
!this.getChildById(this.container, 'padding') ||
!this.getChildById(this.container, 'cursor') ||
!this.getChildById(this.container, 'lineheight') ||
!this.getChildById(this.container, 'usercss') ||
!this.getChildById(this.container, 'space') ||
!this.getChildById(this.container, 'input') ||
!this.getChildById(this.container, 'cliphelper')) {
// Only enable the "embed" object, if we have a suitable plugin. Otherwise,
// we might get a pointless warning that a suitable plugin is not yet
// installed. If in doubt, we'd rather just stay silent.
var embed = '';
try {
if (typeof navigator.mimeTypes["audio/x-wav"].enabledPlugin.name !=
'undefined') {
embed = typeof suppressAllAudio != 'undefined' &&
suppressAllAudio ? "" :
'<embed classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" ' +
'id="beep_embed" ' +
'src="beep.wav" ' +
'autostart="false" ' +
'volume="100" ' +
'enablejavascript="true" ' +
'type="audio/x-wav" ' +
'height="16" ' +
'width="200" ' +
'style="position:absolute;left:-1000px;top:-1000px" />';
}
} catch (e) {
}
this.container.innerHTML =
'<div id="reconnect" style="visibility: hidden">' +
'<input type="button" value="Connect" ' +
'onsubmit="return false" />' +
'</div>' +
'<div id="cursize" style="visibility: hidden">' +
'</div>' +
'<div id="menu"></div>' +
'<div id="keyboard" unselectable="on">' +
'</div>' +
'<div id="scrollable">' +
'<table id="kbd_button">' +
'<tr><td width="100%"> </td>' +
'<td><img id="kbd_img" src="keyboard.png" /></td>' +
'<td> </td></tr>' +
'</table>' +
'<pre id="lineheight"> </pre>' +
'<pre id="console">' +
'<pre></pre>' +
'<div id="ieprobe"><span> </span></div>' +
'</pre>' +
'<pre id="alt_console" style="display: none"></pre>' +
'<div id="padding"></div>' +
'<pre id="cursor"> </pre>' +
'</div>' +
'<div class="hidden">' +
'<div id="usercss"></div>' +
'<pre><div><span id="space"></span></div></pre>' +
'<input type="textfield" id="input" />' +
'<input type="textfield" id="cliphelper" />' +
(typeof suppressAllAudio != 'undefined' &&
suppressAllAudio ? "" :
embed + '<bgsound id="beep_bgsound" loop=1 />') +
'<iframe id="layout" src="keyboard.html" />' +
'</div>';
}
// Find the object used for playing the "beep" sound, if any.
if (typeof suppressAllAudio != 'undefined' && suppressAllAudio) {
this.beeper = undefined;
} else {
this.beeper = this.getChildById(this.container,
'beep_embed');
if (!this.beeper || !this.beeper.Play) {
this.beeper = this.getChildById(this.container,
'beep_bgsound');
if (!this.beeper || typeof this.beeper.src == 'undefined') {
this.beeper = undefined;
}
}
}
// Initialize the variables for finding the text console and the
// cursor.
this.reconnectBtn = this.getChildById(this.container,'reconnect');
this.curSizeBox = this.getChildById(this.container, 'cursize');
this.menu = this.getChildById(this.container, 'menu');
this.keyboard = this.getChildById(this.container, 'keyboard');
this.keyboardImage = this.getChildById(this.container, 'kbd_img');
this.layout = this.getChildById(this.container, 'layout');
this.scrollable = this.getChildById(this.container,
'scrollable');
this.lineheight = this.getChildById(this.container,
'lineheight');
this.console =
[ this.getChildById(this.container, 'console'),
this.getChildById(this.container, 'alt_console') ];
var ieProbe = this.getChildById(this.container, 'ieprobe');
this.padding = this.getChildById(this.container, 'padding');
this.cursor = this.getChildById(this.container, 'cursor');
this.usercss = this.getChildById(this.container, 'usercss');
this.space = this.getChildById(this.container, 'space');
this.input = this.getChildById(this.container, 'input');
this.cliphelper = this.getChildById(this.container,
'cliphelper');
// Add any user selectable style sheets to the menu
this.initializeUserCSSStyles();
// Remember the dimensions of a standard character glyph. We would
// expect that we could just check cursor.clientWidth/Height at any time,
// but it turns out that browsers sometimes invalidate these values
// (e.g. while displaying a print preview screen).
this.cursorWidth = this.cursor.clientWidth;
this.cursorHeight = this.lineheight.clientHeight;
// IE has a slightly different boxing model, that we need to compensate for
this.isIE = ieProbe.offsetTop > 1;
ieProbe = undefined;
this.console.innerHTML = '';
// Determine if the terminal window is positioned at the beginning of the
// page, or if it is embedded somewhere else in the page. For full-screen
// terminals, automatically resize whenever the browser window changes.
var marginTop = parseInt(this.getCurrentComputedStyle(
document.body, 'marginTop'));
var marginLeft = parseInt(this.getCurrentComputedStyle(
document.body, 'marginLeft'));
var marginRight = parseInt(this.getCurrentComputedStyle(
document.body, 'marginRight'));
var x = this.container.offsetLeft;
var y = this.container.offsetTop;
for (var parent = this.container; parent = parent.offsetParent; ) {
x += parent.offsetLeft;
y += parent.offsetTop;
}
this.isEmbedded = marginTop != y ||
marginLeft != x ||
(window.innerWidth ||
document.documentElement.clientWidth ||
document.body.clientWidth) -
marginRight != x + this.container.offsetWidth;
if (!this.isEmbedded) {
// Some browsers generate resize events when the terminal is first
// shown. Disable showing the size indicator until a little bit after
// the terminal has been rendered the first time.
this.indicateSize = false;
setTimeout(function(vt100) {
return function() {
vt100.indicateSize = true;
};
}(this), 100);
this.addListener(window, 'resize',
function(vt100) {
return function() {
vt100.hideContextMenu();
vt100.resizer();
vt100.showCurrentSize();
}
}(this));
// Hide extra scrollbars attached to window
document.body.style.margin = '0px';
try { document.body.style.overflow ='hidden'; } catch (e) { }
try { document.body.oncontextmenu = function() {return false;};} catch(e){}
}
// Set up onscreen soft keyboard
this.initializeKeyboardButton();
// Hide context menu
this.hideContextMenu();
// Add listener to reconnect button
this.addListener(this.reconnectBtn.firstChild, 'click',
function(vt100) {
return function() {
var rc = vt100.reconnect();
vt100.input.focus();
return rc;
}
}(this));
// Add input listeners
this.addListener(this.input, 'blur',
function(vt100) {
return function() { vt100.blurCursor(); } }(this));
this.addListener(this.input, 'focus',
function(vt100) {
return function() { vt100.focusCursor(); } }(this));
this.addListener(this.input, 'keydown',
function(vt100) {
return function(e) {
if (!e) e = window.event;
return vt100.keyDown(e); } }(this));
this.addListener(this.input, 'keypress',
function(vt100) {
return function(e) {
if (!e) e = window.event;
return vt100.keyPressed(e); } }(this));
this.addListener(this.input, 'keyup',
function(vt100) {
return function(e) {
if (!e) e = window.event;
return vt100.keyUp(e); } }(this));
// Attach listeners that move the focus to the <input> field. This way we
// can make sure that we can receive keyboard input.
var mouseEvent = function(vt100, type) {
return function(e) {
if (!e) e = window.event;
return vt100.mouseEvent(e, type);
};
};
this.addListener(this.scrollable,'mousedown',mouseEvent(this, 0 /* MOUSE_DOWN */));
this.addListener(this.scrollable,'mouseup', mouseEvent(this, 1 /* MOUSE_UP */));
this.addListener(this.scrollable,'click', mouseEvent(this, 2 /* MOUSE_CLICK */));
// Initialize the blank terminal window.
this.currentScreen = 0;
this.cursorX = 0;
this.cursorY = 0;
this.numScrollbackLines = 0;
this.top = 0;
this.bottom = 0x7FFFFFFF;
this.scale = 1.0;
this.resizer();
this.focusCursor();
this.input.focus();
};
VT100.prototype.getChildById = function(parent, id) {
var nodeList = parent.all || parent.getElementsByTagName('*');
if (typeof nodeList.namedItem == 'undefined') {
for (var i = 0; i < nodeList.length; i++) {
if (nodeList[i].id == id) {
return nodeList[i];
}
}
return null;
} else {
var elem = (parent.all || parent.getElementsByTagName('*')).namedItem(id);
return elem ? elem[0] || elem : null;
}
};
VT100.prototype.getCurrentComputedStyle = function(elem, style) {
if (typeof elem.currentStyle != 'undefined') {
return elem.currentStyle[style];
} else {
return document.defaultView.getComputedStyle(elem, null)[style];
}
};
VT100.prototype.reconnect = function() {
return false;
};
VT100.prototype.showReconnect = function(state) {
if (state) {
this.hideSoftKeyboard();
this.reconnectBtn.style.visibility = '';
} else {
this.reconnectBtn.style.visibility = 'hidden';
}
};
VT100.prototype.repairElements = function(console) {
for (var line = console.firstChild; line; line = line.nextSibling) {
if (!line.clientHeight) {
var newLine = document.createElement(line.tagName);
newLine.style.cssText = line.style.cssText;
newLine.className = line.className;
if (line.tagName == 'DIV') {
for (var span = line.firstChild; span; span = span.nextSibling) {
var newSpan = document.createElement(span.tagName);
newSpan.style.cssText = span.style.cssText;
newSpan.style.className = span.style.className;
this.setTextContent(newSpan, this.getTextContent(span));
newLine.appendChild(newSpan);
}
} else {
this.setTextContent(newLine, this.getTextContent(line));
}
line.parentNode.replaceChild(newLine, line);
line = newLine;
}
}
};
VT100.prototype.resized = function(w, h) {
};
VT100.prototype.resizer = function() {
// Hide onscreen soft keyboard
this.hideSoftKeyboard();
// The cursor can get corrupted if the print-preview is displayed in Firefox.
// Recreating it, will repair it.
var newCursor = document.createElement('pre');
this.setTextContent(newCursor, ' ');
newCursor.id = 'cursor';
newCursor.style.cssText = this.cursor.style.cssText;
this.cursor.parentNode.insertBefore(newCursor, this.cursor);
if (!newCursor.clientHeight) {
// Things are broken right now. This is probably because we are
// displaying the print-preview. Just don't change any of our settings
// until the print dialog is closed again.
newCursor.parentNode.removeChild(newCursor);
return;
} else {
// Swap the old broken cursor for the newly created one.
this.cursor.parentNode.removeChild(this.cursor);
this.cursor = newCursor;
}
// Really horrible things happen if the contents of the terminal changes
// while the print-preview is showing. We get HTML elements that show up
// in the DOM, but that do not take up any space. Find these elements and
// try to fix them.
this.repairElements(this.console[0]);
this.repairElements(this.console[1]);
// Lock the cursor size to the size of a normal character. This helps with
// characters that are taller/shorter than normal. Unfortunately, we will
// still get confused if somebody enters a character that is wider/narrower
// than normal. This can happen if the browser tries to substitute a
// characters from a different font.
this.cursor.style.width = this.cursorWidth + 'px';
this.cursor.style.height = this.cursorHeight + 'px';
// Adjust height for one pixel padding of the #vt100 element.
// The latter is necessary to properly display the inactive cursor.
var console = this.console[this.currentScreen];
var height = (this.isEmbedded ? this.container.clientHeight
: (window.innerHeight ||
document.documentElement.clientHeight ||
document.body.clientHeight))-1;
var partial = height % this.cursorHeight;
this.scrollable.style.height = (height > 0 ? height : 0) + 'px';
this.padding.style.height = (partial > 0 ? partial : 0) + 'px';
var oldTerminalHeight = this.terminalHeight;
this.updateWidth();
this.updateHeight();
// Clip the cursor to the visible screen.
var cx = this.cursorX;
var cy = this.cursorY + this.numScrollbackLines;
// The alternate screen never keeps a scroll back buffer.
this.updateNumScrollbackLines();
while (this.currentScreen && this.numScrollbackLines > 0) {
console.removeChild(console.firstChild);
this.numScrollbackLines--;
}
cy -= this.numScrollbackLines;
if (cx < 0) {
cx = 0;
} else if (cx > this.terminalWidth) {
cx = this.terminalWidth - 1;
if (cx < 0) {
cx = 0;
}
}
if (cy < 0) {
cy = 0;
} else if (cy > this.terminalHeight) {
cy = this.terminalHeight - 1;
if (cy < 0) {
cy = 0;
}
}
// Clip the scroll region to the visible screen.
if (this.bottom > this.terminalHeight ||
this.bottom == oldTerminalHeight) {
this.bottom = this.terminalHeight;
}
if (this.top >= this.bottom) {
this.top = this.bottom-1;
if (this.top < 0) {
this.top = 0;
}
}
// Truncate lines, if necessary. Explicitly reposition cursor (this is
// particularly important after changing the screen number), and reset
// the scroll region to the default.
this.truncateLines(this.terminalWidth);
this.putString(cx, cy, '', undefined);
this.scrollable.scrollTop = this.numScrollbackLines *
this.cursorHeight + 1;
// Update classNames for lines in the scrollback buffer
var line = console.firstChild;
for (var i = 0; i < this.numScrollbackLines; i++) {
line.className = 'scrollback';
line = line.nextSibling;
}
while (line) {
line.className = '';
line = line.nextSibling;
}
// Reposition the reconnect button
this.reconnectBtn.style.left = (this.terminalWidth*this.cursorWidth/
this.scale -
this.reconnectBtn.clientWidth)/2 + 'px';
this.reconnectBtn.style.top = (this.terminalHeight*this.cursorHeight-
this.reconnectBtn.clientHeight)/2 + 'px';
// Send notification that the window size has been changed
this.resized(this.terminalWidth, this.terminalHeight);
};
VT100.prototype.showCurrentSize = function() {
if (!this.indicateSize) {
return;
}
this.curSizeBox.innerHTML = '' + this.terminalWidth + 'x' +
this.terminalHeight;
this.curSizeBox.style.left =
(this.terminalWidth*this.cursorWidth/
this.scale -
this.curSizeBox.clientWidth)/2 + 'px';
this.curSizeBox.style.top =
(this.terminalHeight*this.cursorHeight -
this.curSizeBox.clientHeight)/2 + 'px';
this.curSizeBox.style.visibility = '';
if (this.curSizeTimeout) {
clearTimeout(this.curSizeTimeout);
}
// Only show the terminal size for a short amount of time after resizing.
// Then hide this information, again. Some browsers generate resize events
// throughout the entire resize operation. This is nice, and we will show
// the terminal size while the user is dragging the window borders.
// Other browsers only generate a single event when the user releases the
// mouse. In those cases, we can only show the terminal size once at the
// end of the resize operation.
this.curSizeTimeout = setTimeout(function(vt100) {
return function() {
vt100.curSizeTimeout = null;
vt100.curSizeBox.style.visibility = 'hidden';
};
}(this), 1000);
};
VT100.prototype.selection = function() {
try {
return '' + (window.getSelection && window.getSelection() ||
document.selection && document.selection.type == 'Text' &&
document.selection.createRange().text || '');
} catch (e) {
}
return '';
};
VT100.prototype.cancelEvent = function(event) {
try {
// For non-IE browsers
event.stopPropagation();
event.preventDefault();
} catch (e) {
}
try {
// For IE
event.cancelBubble = true;
event.returnValue = false;
event.button = 0;
event.keyCode = 0;
} catch (e) {
}
return false;
};
VT100.prototype.mousePosition = function(event) {
var offsetX = this.container.offsetLeft;
var offsetY = this.container.offsetTop;
for (var e = this.container; e = e.offsetParent; ) {
offsetX += e.offsetLeft;
offsetY += e.offsetTop;
}
return [ event.clientX - offsetX,
event.clientY - offsetY ];
};
VT100.prototype.mouseEvent = function(event, type) {
// If any text is currently selected, do not move the focus as that would
// invalidate the selection.
var selection = this.selection();
if ((type == 1 /* MOUSE_UP */ || type == 2 /* MOUSE_CLICK */) && !selection.length) {
this.input.focus();
}
// Compute mouse position in characters.
var position = this.mousePosition(event);
var x = Math.floor(position[0] / this.cursorWidth);
var y = Math.floor((position[1] + this.scrollable.scrollTop) /
this.cursorHeight) - this.numScrollbackLines;
var inside = true;
if (x >= this.terminalWidth) {
x = this.terminalWidth - 1;
inside = false;
}
if (x < 0) {
x = 0;
inside = false;
}
if (y >= this.terminalHeight) {
y = this.terminalHeight - 1;
inside = false;
}
if (y < 0) {
y = 0;
inside = false;
}
// Compute button number and modifier keys.
var button = type != 0 /* MOUSE_DOWN */ ? 3 :
typeof event.pageX != 'undefined' ? event.button :
[ undefined, 0, 2, 0, 1, 0, 1, 0 ][event.button];
if (button != undefined) {
if (event.shiftKey) {
button |= 0x04;
}
if (event.altKey || event.metaKey) {
button |= 0x08;
}
if (event.ctrlKey) {
button |= 0x10;
}
}
// Report mouse events if they happen inside of the current screen and
// with the SHIFT key unpressed. Both of these restrictions do not apply
// for button releases, as we always want to report those.
if (this.mouseReporting && !selection.length &&
(type != 0 /* MOUSE_DOWN */ || !event.shiftKey)) {
if (inside || type != 0 /* MOUSE_DOWN */) {
if (button != undefined) {
var report = '\u001B[M' + String.fromCharCode(button + 32) +
String.fromCharCode(x + 33) +
String.fromCharCode(y + 33);
if (type != 2 /* MOUSE_CLICK */) {
this.keysPressed(report);
}
// If we reported the event, stop propagating it (not sure, if this
// actually works on most browsers; blocking the global "oncontextmenu"
// even is still necessary).
return this.cancelEvent(event);
}
}
}
// Bring up context menu.
if (button == 2 && !event.shiftKey) {
if (type == 0 /* MOUSE_DOWN */) {
this.showContextMenu(position[0], position[1]);
}
return this.cancelEvent(event);
}
if (this.mouseReporting) {
try {
event.shiftKey = false;
} catch (e) {
}
}
return true;
};
VT100.prototype.replaceChar = function(s, ch, repl) {
for (var i = -1;;) {
i = s.indexOf(ch, i + 1);
if (i < 0) {
break;
}
s = s.substr(0, i) + repl + s.substr(i + 1);
}
return s;
};
VT100.prototype.htmlEscape = function(s) {
return this.replaceChar(this.replaceChar(this.replaceChar(this.replaceChar(
s, '&', '&'), '<', '<'), '"', '"'), ' ', '\u00A0');
};
VT100.prototype.getTextContent = function(elem) {
return elem.textContent ||
(typeof elem.textContent == 'undefined' ? elem.innerText : '');
};
VT100.prototype.setTextContentRaw = function(elem, s) {
// Updating the content of an element is an expensive operation. It actually
// pays off to first check whether the element is still unchanged.
if (typeof elem.textContent == 'undefined') {
if (elem.innerText != s) {
try {
elem.innerText = s;
} catch (e) {
// Very old versions of IE do not allow setting innerText. Instead,
// remove all children, by setting innerHTML and then set the text
// using DOM methods.
elem.innerHTML = '';
elem.appendChild(document.createTextNode(
this.replaceChar(s, ' ', '\u00A0')));
}
}
} else {
if (elem.textContent != s) {
elem.textContent = s;
}
}
};
VT100.prototype.setTextContent = function(elem, s) {
// Check if we find any URLs in the text. If so, automatically convert them
// to links.
if (this.urlRE && this.urlRE.test(s)) {
var inner = '';
for (;;) {
var consumed = 0;
if (RegExp.leftContext != null) {
inner += this.htmlEscape(RegExp.leftContext);
consumed += RegExp.leftContext.length;
}
var url = this.htmlEscape(RegExp.lastMatch);
var fullUrl = url;
// If no protocol was specified, try to guess a reasonable one.
if (url.indexOf('http://') < 0 && url.indexOf('https://') < 0 &&
url.indexOf('ftp://') < 0 && url.indexOf('mailto:') < 0) {
var slash = url.indexOf('/');
var at = url.indexOf('@');
var question = url.indexOf('?');
if (at > 0 &&
(at < question || question < 0) &&
(slash < 0 || (question > 0 && slash > question))) {
fullUrl = 'mailto:' + url;
} else {
fullUrl = (url.indexOf('ftp.') == 0 ? 'ftp://' : 'http://') +
url;
}
}
inner += '<a target="vt100Link" href="' + fullUrl +
'">' + url + '</a>';
consumed += RegExp.lastMatch.length;
s = s.substr(consumed);
if (!this.urlRE.test(s)) {
if (RegExp.rightContext != null) {
inner += this.htmlEscape(RegExp.rightContext);
}
break;
}
}
elem.innerHTML = inner;
return;
}
this.setTextContentRaw(elem, s);
};
VT100.prototype.insertBlankLine = function(y, color, style) {
// Insert a blank line a position y. This method ignores the scrollback
// buffer. The caller has to add the length of the scrollback buffer to
// the position, if necessary.
// If the position is larger than the number of current lines, this
// method just adds a new line right after the last existing one. It does
// not add any missing lines in between. It is the caller's responsibility
// to do so.
if (!color) {
color = 'ansi0 bgAnsi15';
}
if (!style) {
style = '';
}
var line;
if (color != 'ansi0 bgAnsi15' && !style) {
line = document.createElement('pre');
this.setTextContent(line, '\n');
} else {
line = document.createElement('div');
var span = document.createElement('span');
span.style.cssText = style;
span.style.className = color;
this.setTextContent(span, this.spaces(this.terminalWidth));
line.appendChild(span);
}
line.style.height = this.cursorHeight + 'px';
var console = this.console[this.currentScreen];
if (console.childNodes.length > y) {
console.insertBefore(line, console.childNodes[y]);
} else {
console.appendChild(line);
}
};
VT100.prototype.updateWidth = function() {
this.terminalWidth = Math.floor(this.console[this.currentScreen].offsetWidth/
this.cursorWidth*this.scale);
return this.terminalWidth;
};
VT100.prototype.updateHeight = function() {
// We want to be able to display either a terminal window that fills the
// entire browser window, or a terminal window that is contained in a
// <div> which is embededded somewhere in the web page.
if (this.isEmbedded) {
// Embedded terminal. Use size of the containing <div> (id="vt100").
this.terminalHeight = Math.floor((this.container.clientHeight-1) /
this.cursorHeight);
} else {
// Use the full browser window.
this.terminalHeight = Math.floor(((window.innerHeight ||
document.documentElement.clientHeight ||
document.body.clientHeight)-1)/
this.cursorHeight);
}
return this.terminalHeight;
};
VT100.prototype.updateNumScrollbackLines = function() {
var scrollback = Math.floor(
this.console[this.currentScreen].offsetHeight /
this.cursorHeight) -
this.terminalHeight;
this.numScrollbackLines = scrollback < 0 ? 0 : scrollback;
return this.numScrollbackLines;
};
VT100.prototype.truncateLines = function(width) {
if (width < 0) {
width = 0;
}
for (var line = this.console[this.currentScreen].firstChild; line;
line = line.nextSibling) {
if (line.tagName == 'DIV') {
var x = 0;
// Traverse current line and truncate it once we saw "width" characters
for (var span = line.firstChild; span;
span = span.nextSibling) {
var s = this.getTextContent(span);
var l = s.length;
if (x + l > width) {
this.setTextContent(span, s.substr(0, width - x));
while (span.nextSibling) {
line.removeChild(line.lastChild);
}
break;
}
x += l;
}
// Prune white space from the end of the current line
var span = line.lastChild;
while (span &&
span.className == 'ansi0 bgAnsi15' &&
!span.style.cssText.length) {
// Scan backwards looking for first non-space character
var s = this.getTextContent(span);
for (var i = s.length; i--; ) {
if (s.charAt(i) != ' ' && s.charAt(i) != '\u00A0') {
if (i+1 != s.length) {
this.setTextContent(s.substr(0, i+1));
}
span = null;
break;
}
}
if (span) {
var sibling = span;
span = span.previousSibling;
if (span) {
// Remove blank <span>'s from end of line
line.removeChild(sibling);
} else {
// Remove entire line (i.e. <div>), if empty
var blank = document.createElement('pre');
blank.style.height = this.cursorHeight + 'px';
this.setTextContent(blank, '\n');
line.parentNode.replaceChild(blank, line);
}
}
}
}
}
};
VT100.prototype.putString = function(x, y, text, color, style) {
if (!color) {
color = 'ansi0 bgAnsi15';
}
if (!style) {
style = '';
}
var yIdx = y + this.numScrollbackLines;
var line;
var sibling;
var s;
var span;
var xPos = 0;
var console = this.console[this.currentScreen];
if (!text.length && (yIdx >= console.childNodes.length ||
console.childNodes[yIdx].tagName != 'DIV')) {
// Positioning cursor to a blank location
span = null;
} else {
// Create missing blank lines at end of page
while (console.childNodes.length <= yIdx) {
// In order to simplify lookups, we want to make sure that each line
// is represented by exactly one element (and possibly a whole bunch of
// children).
// For non-blank lines, we can create a <div> containing one or more
// <span>s. For blank lines, this fails as browsers tend to optimize them
// away. But fortunately, a <pre> tag containing a newline character
// appears to work for all browsers (a would also work, but then
// copying from the browser window would insert superfluous spaces into
// the clipboard).
this.insertBlankLine(yIdx);
}
line = console.childNodes[yIdx];
// If necessary, promote blank '\n' line to a <div> tag
if (line.tagName != 'DIV') {
var div = document.createElement('div');
div.style.height = this.cursorHeight + 'px';
div.innerHTML = '<span></span>';
console.replaceChild(div, line);
line = div;
}
// Scan through list of <span>'s until we find the one where our text
// starts
span = line.firstChild;
var len;
while (span.nextSibling && xPos < x) {
len = this.getTextContent(span).length;
if (xPos + len > x) {
break;
}
xPos += len;
span = span.nextSibling;
}
if (text.length) {
// If current <span> is not long enough, pad with spaces or add new
// span
s = this.getTextContent(span);
var oldColor = span.className;
var oldStyle = span.style.cssText;
if (xPos + s.length < x) {
if (oldColor != 'ansi0 bgAnsi15' || oldStyle != '') {
span = document.createElement('span');
line.appendChild(span);
span.className = 'ansi0 bgAnsi15';
span.style.cssText = '';
oldColor = 'ansi0 bgAnsi15';
oldStyle = '';
xPos += s.length;
s = '';
}
do {
s += ' ';
} while (xPos + s.length < x);
}
// If styles do not match, create a new <span>
var del = text.length - s.length + x - xPos;
if (oldColor != color ||
(oldStyle != style && (oldStyle || style))) {
if (xPos == x) {
// Replacing text at beginning of existing <span>
if (text.length >= s.length) {
// New text is equal or longer than existing text
s = text;
} else {
// Insert new <span> before the current one, then remove leading
// part of existing <span>, adjust style of new <span>, and finally
// set its contents
sibling = document.createElement('span');
line.insertBefore(sibling, span);
this.setTextContent(span, s.substr(text.length));
span = sibling;
s = text;
}
} else {
// Replacing text some way into the existing <span>
var remainder = s.substr(x + text.length - xPos);
this.setTextContent(span, s.substr(0, x - xPos));
xPos = x;
sibling = document.createElement('span');
if (span.nextSibling) {
line.insertBefore(sibling, span.nextSibling);
span = sibling;
if (remainder.length) {
sibling = document.createElement('span');
sibling.className = oldColor;
sibling.style.cssText = oldStyle;
this.setTextContent(sibling, remainder);
line.insertBefore(sibling, span.nextSibling);
}
} else {
line.appendChild(sibling);
span = sibling;
if (remainder.length) {
sibling = document.createElement('span');
sibling.className = oldColor;
sibling.style.cssText = oldStyle;
this.setTextContent(sibling, remainder);
line.appendChild(sibling);
}
}
s = text;
}
span.className = color;
span.style.cssText = style;
} else {
// Overwrite (partial) <span> with new text
s = s.substr(0, x - xPos) +
text +
s.substr(x + text.length - xPos);
}
this.setTextContent(span, s);
// Delete all subsequent <span>'s that have just been overwritten
sibling = span.nextSibling;
while (del > 0 && sibling) {
s = this.getTextContent(sibling);
len = s.length;
if (len <= del) {
line.removeChild(sibling);
del -= len;
sibling = span.nextSibling;
} else {
this.setTextContent(sibling, s.substr(del));
break;
}
}
// Merge <span> with next sibling, if styles are identical
if (sibling && span.className == sibling.className &&
span.style.cssText == sibling.style.cssText) {
this.setTextContent(span,
this.getTextContent(span) +
this.getTextContent(sibling));
line.removeChild(sibling);
}
}
}
// Position cursor
this.cursorX = x + text.length;
if (this.cursorX >= this.terminalWidth) {
this.cursorX = this.terminalWidth - 1;
if (this.cursorX < 0) {
this.cursorX = 0;
}
}
var pixelX = -1;
var pixelY = -1;
if (!this.cursor.style.visibility) {
var idx = this.cursorX - xPos;
if (span) {
// If we are in a non-empty line, take the cursor Y position from the
// other elements in this line. If dealing with broken, non-proportional
// fonts, this is likely to yield better results.
pixelY = span.offsetTop +
span.offsetParent.offsetTop;
s = this.getTextContent(span);
var nxtIdx = idx - s.length;
if (nxtIdx < 0) {
this.setTextContent(this.cursor, s.charAt(idx));
pixelX = span.offsetLeft +
idx*span.offsetWidth / s.length;
} else {
if (nxtIdx == 0) {
pixelX = span.offsetLeft + span.offsetWidth;
}
if (span.nextSibling) {
s = this.getTextContent(span.nextSibling);
this.setTextContent(this.cursor, s.charAt(nxtIdx));
if (pixelX < 0) {
pixelX = span.nextSibling.offsetLeft +
nxtIdx*span.offsetWidth / s.length;
}
} else {
this.setTextContent(this.cursor, ' ');
}
}
} else {
this.setTextContent(this.cursor, ' ');
}
}
if (pixelX >= 0) {
this.cursor.style.left = (pixelX + (this.isIE ? 1 : 0))/
this.scale + 'px';
} else {
this.setTextContent(this.space, this.spaces(this.cursorX));
this.cursor.style.left = (this.space.offsetWidth +
console.offsetLeft)/this.scale + 'px';
}
this.cursorY = yIdx - this.numScrollbackLines;
if (pixelY >= 0) {
this.cursor.style.top = pixelY + 'px';
} else {
this.cursor.style.top = yIdx*this.cursorHeight +
console.offsetTop + 'px';
}
if (text.length) {
// Merge <span> with previous sibling, if styles are identical
if ((sibling = span.previousSibling) &&
span.className == sibling.className &&
span.style.cssText == sibling.style.cssText) {
this.setTextContent(span,
this.getTextContent(sibling) +
this.getTextContent(span));
line.removeChild(sibling);
}
// Prune white space from the end of the current line
span = line.lastChild;
while (span &&
span.className == 'ansi0 bgAnsi15' &&
!span.style.cssText.length) {
// Scan backwards looking for first non-space character
s = this.getTextContent(span);
for (var i = s.length; i--; ) {
if (s.charAt(i) != ' ' && s.charAt(i) != '\u00A0') {
if (i+1 != s.length) {
this.setTextContent(s.substr(0, i+1));
}
span = null;
break;
}
}
if (span) {
sibling = span;
span = span.previousSibling;
if (span) {
// Remove blank <span>'s from end of line
line.removeChild(sibling);
} else {
// Remove entire line (i.e. <div>), if empty
var blank = document.createElement('pre');
blank.style.height = this.cursorHeight + 'px';
this.setTextContent(blank, '\n');
line.parentNode.replaceChild(blank, line);
}
}
}
}
};
VT100.prototype.gotoXY = function(x, y) {
if (x >= this.terminalWidth) {
x = this.terminalWidth - 1;
}
if (x < 0) {
x = 0;
}
var minY, maxY;
if (this.offsetMode) {
minY = this.top;
maxY = this.bottom;
} else {
minY = 0;
maxY = this.terminalHeight;
}
if (y >= maxY) {
y = maxY - 1;
}
if (y < minY) {
y = minY;
}
this.putString(x, y, '', undefined);
this.needWrap = false;
};
VT100.prototype.gotoXaY = function(x, y) {
this.gotoXY(x, this.offsetMode ? (this.top + y) : y);
};
VT100.prototype.refreshInvertedState = function() {
if (this.isInverted) {
this.scrollable.className += ' inverted';
} else {
this.scrollable.className = this.scrollable.className.
replace(/ *inverted/, '');
}
};
VT100.prototype.enableAlternateScreen = function(state) {
// Don't do anything, if we are already on the desired screen
if ((state ? 1 : 0) == this.currentScreen) {
// Calling the resizer is not actually necessary. But it is a good way
// of resetting state that might have gotten corrupted.
this.resizer();
return;
}
// We save the full state of the normal screen, when we switch away from it.
// But for the alternate screen, no saving is necessary. We always reset
// it when we switch to it.
if (state) {
this.saveCursor();
}
// Display new screen, and initialize state (the resizer does that for us).
this.currentScreen = state ? 1 : 0;
this.console[1-this.currentScreen].style.display = 'none';
this.console[this.currentScreen].style.display = '';
// Select appropriate character pitch.
var transform = this.getTransformName();
if (transform) {
if (state) {
// Upon enabling the alternate screen, we switch to 80 column mode. But
// upon returning to the regular screen, we restore the mode that was
// in effect previously.
this.console[1].style[transform] = '';
}
var style =
this.console[this.currentScreen].style[transform];
this.cursor.style[transform] = style;
this.space.style[transform] = style;
this.scale = style == '' ? 1.0:1.65;
if (transform == 'filter') {
this.console[this.currentScreen].style.width = style == '' ? '165%':'';
}
}
this.resizer();
// If we switched to the alternate screen, reset it completely. Otherwise,
// restore the saved state.
if (state) {
this.gotoXY(0, 0);
this.clearRegion(0, 0, this.terminalWidth, this.terminalHeight);
} else {
this.restoreCursor();
}
};
VT100.prototype.hideCursor = function() {
var hidden = this.cursor.style.visibility == 'hidden';
if (!hidden) {
this.cursor.style.visibility = 'hidden';
return true;
}
return false;
};
VT100.prototype.showCursor = function(x, y) {
if (this.cursor.style.visibility) {
this.cursor.style.visibility = '';
this.putString(x == undefined ? this.cursorX : x,
y == undefined ? this.cursorY : y,
'', undefined);
return true;
}
return false;
};
VT100.prototype.scrollBack = function() {
var i = this.scrollable.scrollTop -
this.scrollable.clientHeight;
this.scrollable.scrollTop = i < 0 ? 0 : i;
};
VT100.prototype.scrollFore = function() {
var i = this.scrollable.scrollTop +
this.scrollable.clientHeight;
this.scrollable.scrollTop = i > this.numScrollbackLines *
this.cursorHeight + 1
? this.numScrollbackLines *
this.cursorHeight + 1
: i;
};
VT100.prototype.spaces = function(i) {
var s = '';
while (i-- > 0) {
s += ' ';
}
return s;
};
VT100.prototype.clearRegion = function(x, y, w, h, color, style) {
w += x;
if (x < 0) {
x = 0;
}
if (w > this.terminalWidth) {
w = this.terminalWidth;
}
if ((w -= x) <= 0) {
return;
}
h += y;
if (y < 0) {
y = 0;
}
if (h > this.terminalHeight) {
h = this.terminalHeight;
}
if ((h -= y) <= 0) {
return;
}
// Special case the situation where we clear the entire screen, and we do
// not have a scrollback buffer. In that case, we should just remove all
// child nodes.
if (!this.numScrollbackLines &&
w == this.terminalWidth && h == this.terminalHeight &&
(color == undefined || color == 'ansi0 bgAnsi15') && !style) {
var console = this.console[this.currentScreen];
while (console.lastChild) {
console.removeChild(console.lastChild);
}
this.putString(this.cursorX, this.cursorY, '', undefined);
} else {
var hidden = this.hideCursor();
var cx = this.cursorX;
var cy = this.cursorY;
var s = this.spaces(w);
for (var i = y+h; i-- > y; ) {
this.putString(x, i, s, color, style);
}
hidden ? this.showCursor(cx, cy) : this.putString(cx, cy, '', undefined);
}
};
VT100.prototype.copyLineSegment = function(dX, dY, sX, sY, w) {
var text = [ ];
var className = [ ];
var style = [ ];
var console = this.console[this.currentScreen];
if (sY >= console.childNodes.length) {
text[0] = this.spaces(w);
className[0] = undefined;
style[0] = undefined;
} else {
var line = console.childNodes[sY];
if (line.tagName != 'DIV' || !line.childNodes.length) {
text[0] = this.spaces(w);
className[0] = undefined;
style[0] = undefined;
} else {
var x = 0;
for (var span = line.firstChild; span && w > 0; span = span.nextSibling){
var s = this.getTextContent(span);
var len = s.length;
if (x + len > sX) {
var o = sX > x ? sX - x : 0;
text[text.length] = s.substr(o, w);
className[className.length] = span.className;
style[style.length] = span.style.cssText;
w -= len - o;
}
x += len;
}
if (w > 0) {
text[text.length] = this.spaces(w);
className[className.length] = undefined;
style[style.length] = undefined;
}
}
}
var hidden = this.hideCursor();
var cx = this.cursorX;
var cy = this.cursorY;
for (var i = 0; i < text.length; i++) {
var color;
if (className[i]) {
color = className[i];
} else {
color = 'ansi0 bgAnsi15';
}
this.putString(dX, dY - this.numScrollbackLines, text[i], color, style[i]);
dX += text[i].length;
}
hidden ? this.showCursor(cx, cy) : this.putString(cx, cy, '', undefined);
};
VT100.prototype.scrollRegion = function(x, y, w, h, incX, incY,
color, style) {
var left = incX < 0 ? -incX : 0;
var right = incX > 0 ? incX : 0;
var up = incY < 0 ? -incY : 0;
var down = incY > 0 ? incY : 0;
// Clip region against terminal size
var dontScroll = null;
w += x;
if (x < left) {
x = left;
}
if (w > this.terminalWidth - right) {
w = this.terminalWidth - right;
}
if ((w -= x) <= 0) {
dontScroll = 1;
}
h += y;
if (y < up) {
y = up;
}
if (h > this.terminalHeight - down) {
h = this.terminalHeight - down;
}
if ((h -= y) < 0) {
dontScroll = 1;
}
if (!dontScroll) {
if (style && style.indexOf('underline')) {
// Different terminal emulators disagree on the attributes that
// are used for scrolling. The consensus seems to be, never to
// fill with underlined spaces. N.B. this is different from the
// cases when the user blanks a region. User-initiated blanking
// always fills with all of the current attributes.
style = style.replace(/text-decoration:underline;/, '');
}
// Compute current scroll position
var scrollPos = this.numScrollbackLines -
(this.scrollable.scrollTop-1) / this.cursorHeight;
// Determine original cursor position. Hide cursor temporarily to avoid
// visual artifacts.
var hidden = this.hideCursor();
var cx = this.cursorX;
var cy = this.cursorY;
var console = this.console[this.currentScreen];
if (!incX && !x && w == this.terminalWidth) {
// Scrolling entire lines
if (incY < 0) {
// Scrolling up
if (!this.currentScreen && y == -incY &&
h == this.terminalHeight + incY) {
// Scrolling up with adding to the scrollback buffer. This is only
// possible if there are at least as many lines in the console,
// as the terminal is high
while (console.childNodes.length < this.terminalHeight) {
this.insertBlankLine(this.terminalHeight);
}
// Add new lines at bottom in order to force scrolling
for (var i = 0; i < y; i++) {
this.insertBlankLine(console.childNodes.length, color, style);
}
// Adjust the number of lines in the scrollback buffer by
// removing excess entries.
this.updateNumScrollbackLines();
while (this.numScrollbackLines >
(this.currentScreen ? 0 : this.maxScrollbackLines)) {
console.removeChild(console.firstChild);
this.numScrollbackLines--;
}
// Mark lines in the scrollback buffer, so that they do not get
// printed.
for (var i = this.numScrollbackLines, j = -incY;
i-- > 0 && j-- > 0; ) {
console.childNodes[i].className = 'scrollback';
}
} else {
// Scrolling up without adding to the scrollback buffer.
for (var i = -incY;
i-- > 0 &&
console.childNodes.length >
this.numScrollbackLines + y + incY; ) {
console.removeChild(console.childNodes[
this.numScrollbackLines + y + incY]);
}
// If we used to have a scrollback buffer, then we must make sure
// that we add back blank lines at the bottom of the terminal.
// Similarly, if we are scrolling in the middle of the screen,
// we must add blank lines to ensure that the bottom of the screen
// does not move up.
if (this.numScrollbackLines > 0 ||
console.childNodes.length > this.numScrollbackLines+y+h+incY) {
for (var i = -incY; i-- > 0; ) {
this.insertBlankLine(this.numScrollbackLines + y + h + incY,
color, style);
}
}
}
} else {
// Scrolling down
for (var i = incY;
i-- > 0 &&
console.childNodes.length > this.numScrollbackLines + y + h; ) {
console.removeChild(console.childNodes[this.numScrollbackLines+y+h]);
}
for (var i = incY; i--; ) {
this.insertBlankLine(this.numScrollbackLines + y, color, style);
}
}
} else {
// Scrolling partial lines
if (incY <= 0) {
// Scrolling up or horizontally within a line
for (var i = y + this.numScrollbackLines;
i < y + this.numScrollbackLines + h;
i++) {
this.copyLineSegment(x + incX, i + incY, x, i, w);
}
} else {
// Scrolling down
for (var i = y + this.numScrollbackLines + h;
i-- > y + this.numScrollbackLines; ) {
this.copyLineSegment(x + incX, i + incY, x, i, w);
}
}
// Clear blank regions
if (incX > 0) {
this.clearRegion(x, y, incX, h, color, style);
} else if (incX < 0) {
this.clearRegion(x + w + incX, y, -incX, h, color, style);
}
if (incY > 0) {
this.clearRegion(x, y, w, incY, color, style);
} else if (incY < 0) {
this.clearRegion(x, y + h + incY, w, -incY, color, style);
}
}
// Reset scroll position
this.scrollable.scrollTop = (this.numScrollbackLines-scrollPos) *
this.cursorHeight + 1;
// Move cursor back to its original position
hidden ? this.showCursor(cx, cy) : this.putString(cx, cy, '', undefined);
}
};
VT100.prototype.copy = function(selection) {
if (selection == undefined) {
selection = this.selection();
}
this.internalClipboard = undefined;
if (selection.length) {
try {
// IE
this.cliphelper.value = selection;
this.cliphelper.select();
this.cliphelper.createTextRange().execCommand('copy');
} catch (e) {
this.internalClipboard = selection;
}
this.cliphelper.value = '';
}
};
VT100.prototype.copyLast = function() {
// Opening the context menu can remove the selection. We try to prevent this
// from happening, but that is not possible for all browsers. So, instead,
// we compute the selection before showing the menu.
this.copy(this.lastSelection);
};
VT100.prototype.pasteFnc = function() {
var clipboard = undefined;
if (this.internalClipboard != undefined) {
clipboard = this.internalClipboard;
} else {
try {
this.cliphelper.value = '';
this.cliphelper.createTextRange().execCommand('paste');
clipboard = this.cliphelper.value;
} catch (e) {
}
}
this.cliphelper.value = '';
if (clipboard && this.menu.style.visibility == 'hidden') {
return function() {
this.keysPressed('' + clipboard);
};
} else {
return undefined;
}
};
VT100.prototype.toggleUTF = function() {
this.utfEnabled = !this.utfEnabled;
// We always persist the last value that the user selected. Not necessarily
// the last value that a random program requested.
this.utfPreferred = this.utfEnabled;
};
VT100.prototype.toggleBell = function() {
this.visualBell = !this.visualBell;
};
VT100.prototype.toggleSoftKeyboard = function() {
this.softKeyboard = !this.softKeyboard;
this.keyboardImage.style.visibility = this.softKeyboard ? 'visible' : '';
};
VT100.prototype.deselectKeys = function(elem) {
if (elem && elem.className == 'selected') {
elem.className = '';
}
for (elem = elem.firstChild; elem; elem = elem.nextSibling) {
this.deselectKeys(elem);
}
};
VT100.prototype.showSoftKeyboard = function() {
// Make sure no key is currently selected
this.lastSelectedKey = undefined;
this.deselectKeys(this.keyboard);
this.isShift = false;
this.showShiftState(false);
this.isCtrl = false;
this.showCtrlState(false);
this.isAlt = false;
this.showAltState(false);
this.keyboard.style.left = '0px';
this.keyboard.style.top = '0px';
this.keyboard.style.width = this.container.offsetWidth + 'px';
this.keyboard.style.height = this.container.offsetHeight + 'px';
this.keyboard.style.visibility = 'hidden';
this.keyboard.style.display = '';
var kbd = this.keyboard.firstChild;
var scale = 1.0;
var transform = this.getTransformName();
if (transform) {
kbd.style[transform] = '';
if (kbd.offsetWidth > 0.9 * this.container.offsetWidth) {
scale = (kbd.offsetWidth/
this.container.offsetWidth)/0.9;
}
if (kbd.offsetHeight > 0.9 * this.container.offsetHeight) {
scale = Math.max((kbd.offsetHeight/
this.container.offsetHeight)/0.9);
}
var style = this.getTransformStyle(transform,
scale > 1.0 ? scale : undefined);
kbd.style[transform] = style;
}
if (transform == 'filter') {
scale = 1.0;
}
kbd.style.left = ((this.container.offsetWidth -
kbd.offsetWidth/scale)/2) + 'px';
kbd.style.top = ((this.container.offsetHeight -
kbd.offsetHeight/scale)/2) + 'px';
this.keyboard.style.visibility = 'visible';
};
VT100.prototype.hideSoftKeyboard = function() {
this.keyboard.style.display = 'none';
};
VT100.prototype.toggleCursorBlinking = function() {
this.blinkingCursor = !this.blinkingCursor;
};
VT100.prototype.about = function() {
alert("VT100 Terminal Emulator " + "2.10 (revision 239)" +
"\nCopyright 2008-2010 by Markus Gutschke\n" +
"For more information check http://shellinabox.com");
};
VT100.prototype.hideContextMenu = function() {
this.menu.style.visibility = 'hidden';
this.menu.style.top = '-100px';
this.menu.style.left = '-100px';
this.menu.style.width = '0px';
this.menu.style.height = '0px';
};
VT100.prototype.extendContextMenu = function(entries, actions) {
};
VT100.prototype.showContextMenu = function(x, y) {
this.menu.innerHTML =
'<table class="popup" ' +
'cellpadding="0" cellspacing="0">' +
'<tr><td>' +
'<ul id="menuentries">' +
'<li id="beginclipboard">Copy</li>' +
'<li id="endclipboard">Paste</li>' +
'<hr />' +
'<li id="reset">Reset</li>' +
'<hr />' +
'<li id="beginconfig">' +
(this.utfEnabled ? '<img src="enabled.gif" />' : '') +
'Unicode</li>' +
'<li>' +
(this.visualBell ? '<img src="enabled.gif" />' : '') +
'Visual Bell</li>'+
'<li>' +
(this.softKeyboard ? '<img src="enabled.gif" />' : '') +
'Onscreen Keyboard</li>' +
'<li id="endconfig">' +
(this.blinkingCursor ? '<img src="enabled.gif" />' : '') +
'Blinking Cursor</li>'+
(this.usercss.firstChild ?
'<hr id="beginusercss" />' +
this.usercss.innerHTML +
'<hr id="endusercss" />' :
'<hr />') +
'<li id="about">About...</li>' +
'</ul>' +
'</td></tr>' +
'</table>';
var popup = this.menu.firstChild;
var menuentries = this.getChildById(popup, 'menuentries');
// Determine menu entries that should be disabled
this.lastSelection = this.selection();
if (!this.lastSelection.length) {
menuentries.firstChild.className
= 'disabled';
}
var p = this.pasteFnc();
if (!p) {
menuentries.childNodes[1].className
= 'disabled';
}
// Actions for default items
var actions = [ this.copyLast, p, this.reset,
this.toggleUTF, this.toggleBell,
this.toggleSoftKeyboard,
this.toggleCursorBlinking ];
// Actions for user CSS styles (if any)
for (var i = 0; i < this.usercssActions.length; ++i) {
actions[actions.length] = this.usercssActions[i];
}
actions[actions.length] = this.about;
// Allow subclasses to dynamically add entries to the context menu
this.extendContextMenu(menuentries, actions);
// Hook up event listeners
for (var node = menuentries.firstChild, i = 0; node;
node = node.nextSibling) {
if (node.tagName == 'LI') {
if (node.className != 'disabled') {
this.addListener(node, 'mouseover',
function(vt100, node) {
return function() {
node.className = 'hover';
}
}(this, node));
this.addListener(node, 'mouseout',
function(vt100, node) {
return function() {
node.className = '';
}
}(this, node));
this.addListener(node, 'mousedown',
function(vt100, action) {
return function(event) {
vt100.hideContextMenu();
action.call(vt100);
vt100.storeUserSettings();
return vt100.cancelEvent(event || window.event);
}
}(this, actions[i]));
this.addListener(node, 'mouseup',
function(vt100) {
return function(event) {
return vt100.cancelEvent(event || window.event);
}
}(this));
this.addListener(node, 'mouseclick',
function(vt100) {
return function(event) {
return vt100.cancelEvent(event || window.event);
}
}());
}
i++;
}
}
// Position menu next to the mouse pointer
this.menu.style.left = '0px';
this.menu.style.top = '0px';
this.menu.style.width = this.container.offsetWidth + 'px';
this.menu.style.height = this.container.offsetHeight + 'px';
popup.style.left = '0px';
popup.style.top = '0px';
var margin = 2;
if (x + popup.clientWidth >= this.container.offsetWidth - margin) {
x = this.container.offsetWidth-popup.clientWidth - margin - 1;
}
if (x < margin) {
x = margin;
}
if (y + popup.clientHeight >= this.container.offsetHeight - margin) {
y = this.container.offsetHeight-popup.clientHeight - margin - 1;
}
if (y < margin) {
y = margin;
}
popup.style.left = x + 'px';
popup.style.top = y + 'px';
// Block all other interactions with the terminal emulator
this.addListener(this.menu, 'click', function(vt100) {
return function() {
vt100.hideContextMenu();
}
}(this));
// Show the menu
this.menu.style.visibility = '';
};
VT100.prototype.keysPressed = function(ch) {
for (var i = 0; i < ch.length; i++) {
var c = ch.charCodeAt(i);
this.vt100(c >= 7 && c <= 15 ||
c == 24 || c == 26 || c == 27 || c >= 32
? String.fromCharCode(c) : '<' + c + '>');
}
};
VT100.prototype.applyModifiers = function(ch, event) {
if (ch) {
if (event.ctrlKey) {
if (ch >= 32 && ch <= 127) {
// For historic reasons, some control characters are treated specially
switch (ch) {
case /* 3 */ 51: ch = 27; break;
case /* 4 */ 52: ch = 28; break;
case /* 5 */ 53: ch = 29; break;
case /* 6 */ 54: ch = 30; break;
case /* 7 */ 55: ch = 31; break;
case /* 8 */ 56: ch = 127; break;
case /* ? */ 63: ch = 127; break;
default: ch &= 31; break;
}
}
}
return String.fromCharCode(ch);
} else {
return undefined;
}
};
VT100.prototype.handleKey = function(event) {
// this.vt100('H: c=' + event.charCode + ', k=' + event.keyCode +
// (event.shiftKey || event.ctrlKey || event.altKey ||
// event.metaKey ? ', ' +
// (event.shiftKey ? 'S' : '') + (event.ctrlKey ? 'C' : '') +
// (event.altKey ? 'A' : '') + (event.metaKey ? 'M' : '') : '') +
// '\r\n');
var ch, key;
if (typeof event.charCode != 'undefined') {
// non-IE keypress events have a translated charCode value. Also, our
// fake events generated when receiving keydown events include this data
// on all browsers.
ch = event.charCode;
key = event.keyCode;
} else {
// When sending a keypress event, IE includes the translated character
// code in the keyCode field.
ch = event.keyCode;
key = undefined;
}
// Apply modifier keys (ctrl and shift)
if (ch) {
key = undefined;
}
ch = this.applyModifiers(ch, event);
// By this point, "ch" is either defined and contains the character code, or
// it is undefined and "key" defines the code of a function key
if (ch != undefined) {
this.scrollable.scrollTop = this.numScrollbackLines *
this.cursorHeight + 1;
} else {
if ((event.altKey || event.metaKey) && !event.shiftKey && !event.ctrlKey) {
// Many programs have difficulties dealing with parametrized escape
// sequences for function keys. Thus, if ALT is the only modifier
// key, return Emacs-style keycodes for commonly used keys.
switch (key) {
case 33: /* Page Up */ ch = '\u001B<'; break;
case 34: /* Page Down */ ch = '\u001B>'; break;
case 37: /* Left */ ch = '\u001Bb'; break;
case 38: /* Up */ ch = '\u001Bp'; break;
case 39: /* Right */ ch = '\u001Bf'; break;
case 40: /* Down */ ch = '\u001Bn'; break;
case 46: /* Delete */ ch = '\u001Bd'; break;
default: break;
}
} else if (event.shiftKey && !event.ctrlKey &&
!event.altKey && !event.metaKey) {
switch (key) {
case 33: /* Page Up */ this.scrollBack(); return;
case 34: /* Page Down */ this.scrollFore(); return;
default: break;
}
}
if (ch == undefined) {
switch (key) {
case 8: /* Backspace */ ch = '\u007f'; break;
case 9: /* Tab */ ch = '\u0009'; break;
case 10: /* Return */ ch = '\u000A'; break;
case 13: /* Enter */ ch = this.crLfMode ?
'\r\n' : '\r'; break;
case 16: /* Shift */ return;
case 17: /* Ctrl */ return;
case 18: /* Alt */ return;
case 19: /* Break */ return;
case 20: /* Caps Lock */ return;
case 27: /* Escape */ ch = '\u001B'; break;
case 33: /* Page Up */ ch = '\u001B[5~'; break;
case 34: /* Page Down */ ch = '\u001B[6~'; break;
case 35: /* End */ ch = '\u001BOF'; break;
case 36: /* Home */ ch = '\u001BOH'; break;
case 37: /* Left */ ch = this.cursorKeyMode ?
'\u001BOD' : '\u001B[D'; break;
case 38: /* Up */ ch = this.cursorKeyMode ?
'\u001BOA' : '\u001B[A'; break;
case 39: /* Right */ ch = this.cursorKeyMode ?
'\u001BOC' : '\u001B[C'; break;
case 40: /* Down */ ch = this.cursorKeyMode ?
'\u001BOB' : '\u001B[B'; break;
case 45: /* Insert */ ch = '\u001B[2~'; break;
case 46: /* Delete */ ch = '\u001B[3~'; break;
case 91: /* Left Window */ return;
case 92: /* Right Window */ return;
case 93: /* Select */ return;
case 96: /* 0 */ ch = this.applyModifiers(48, event); break;
case 97: /* 1 */ ch = this.applyModifiers(49, event); break;
case 98: /* 2 */ ch = this.applyModifiers(50, event); break;
case 99: /* 3 */ ch = this.applyModifiers(51, event); break;
case 100: /* 4 */ ch = this.applyModifiers(52, event); break;
case 101: /* 5 */ ch = this.applyModifiers(53, event); break;
case 102: /* 6 */ ch = this.applyModifiers(54, event); break;
case 103: /* 7 */ ch = this.applyModifiers(55, event); break;
case 104: /* 8 */ ch = this.applyModifiers(56, event); break;
case 105: /* 9 */ ch = this.applyModifiers(58, event); break;
case 106: /* * */ ch = this.applyModifiers(42, event); break;
case 107: /* + */ ch = this.applyModifiers(43, event); break;
case 109: /* - */ ch = this.applyModifiers(45, event); break;
case 110: /* . */ ch = this.applyModifiers(46, event); break;
case 111: /* / */ ch = this.applyModifiers(47, event); break;
case 112: /* F1 */ ch = '\u001BOP'; break;
case 113: /* F2 */ ch = '\u001BOQ'; break;
case 114: /* F3 */ ch = '\u001BOR'; break;
case 115: /* F4 */ ch = '\u001BOS'; break;
case 116: /* F5 */ ch = '\u001B[15~'; break;
case 117: /* F6 */ ch = '\u001B[17~'; break;
case 118: /* F7 */ ch = '\u001B[18~'; break;
case 119: /* F8 */ ch = '\u001B[19~'; break;
case 120: /* F9 */ ch = '\u001B[20~'; break;
case 121: /* F10 */ ch = '\u001B[21~'; break;
case 122: /* F11 */ ch = '\u001B[23~'; break;
case 123: /* F12 */ ch = '\u001B[24~'; break;
case 144: /* Num Lock */ return;
case 145: /* Scroll Lock */ return;
case 186: /* ; */ ch = this.applyModifiers(59, event); break;
case 187: /* = */ ch = this.applyModifiers(61, event); break;
case 188: /* , */ ch = this.applyModifiers(44, event); break;
case 189: /* - */ ch = this.applyModifiers(45, event); break;
case 190: /* . */ ch = this.applyModifiers(46, event); break;
case 191: /* / */ ch = this.applyModifiers(47, event); break;
case 192: /* ` */ ch = this.applyModifiers(96, event); break;
case 219: /* [ */ ch = this.applyModifiers(91, event); break;
case 220: /* \ */ ch = this.applyModifiers(92, event); break;
case 221: /* ] */ ch = this.applyModifiers(93, event); break;
case 222: /* ' */ ch = this.applyModifiers(39, event); break;
default: return;
}
this.scrollable.scrollTop = this.numScrollbackLines *
this.cursorHeight + 1;
}
}
// "ch" now contains the sequence of keycodes to send. But we might still
// have to apply the effects of modifier keys.
if (event.shiftKey || event.ctrlKey || event.altKey || event.metaKey) {
var start, digit, part1, part2;
if ((start = ch.substr(0, 2)) == '\u001B[') {
for (part1 = start;
part1.length < ch.length &&
(digit = ch.charCodeAt(part1.length)) >= 48 && digit <= 57; ) {
part1 = ch.substr(0, part1.length + 1);
}
part2 = ch.substr(part1.length);
if (part1.length > 2) {
part1 += ';';
}
} else if (start == '\u001BO') {
part1 = start;
part2 = ch.substr(2);
}
if (part1 != undefined) {
ch = part1 +
((event.shiftKey ? 1 : 0) +
(event.altKey|event.metaKey ? 2 : 0) +
(event.ctrlKey ? 4 : 0)) +
part2;
} else if (ch.length == 1 && (event.altKey || event.metaKey)) {
ch = '\u001B' + ch;
}
}
if (this.menu.style.visibility == 'hidden') {
// this.vt100('R: c=');
// for (var i = 0; i < ch.length; i++)
// this.vt100((i != 0 ? ', ' : '') + ch.charCodeAt(i));
// this.vt100('\r\n');
this.keysPressed(ch);
}
};
VT100.prototype.inspect = function(o, d) {
if (d == undefined) {
d = 0;
}
var rc = '';
if (typeof o == 'object' && ++d < 2) {
rc = '[\r\n';
for (i in o) {
rc += this.spaces(d * 2) + i + ' -> ';
try {
rc += this.inspect(o[i], d);
} catch (e) {
rc += '?' + '?' + '?\r\n';
}
}
rc += ']\r\n';
} else {
rc += ('' + o).replace(/\n/g, ' ').replace(/ +/g,' ') + '\r\n';
}
return rc;
};
VT100.prototype.checkComposedKeys = function(event) {
// Composed keys (at least on Linux) do not generate normal events.
// Instead, they get entered into the text field. We normally catch
// this on the next keyup event.
var s = this.input.value;
if (s.length) {
this.input.value = '';
if (this.menu.style.visibility == 'hidden') {
this.keysPressed(s);
}
}
};
VT100.prototype.fixEvent = function(event) {
// Some browsers report AltGR as a combination of ALT and CTRL. As AltGr
// is used as a second-level selector, clear the modifier bits before
// handling the event.
if (event.ctrlKey && event.altKey) {
var fake = [ ];
fake.charCode = event.charCode;
fake.keyCode = event.keyCode;
fake.ctrlKey = false;
fake.shiftKey = event.shiftKey;
fake.altKey = false;
fake.metaKey = event.metaKey;
return fake;
}
// Some browsers fail to translate keys, if both shift and alt/meta is
// pressed at the same time. We try to translate those cases, but that
// only works for US keyboard layouts.
if (event.shiftKey) {
var u = undefined;
var s = undefined;
switch (this.lastNormalKeyDownEvent.keyCode) {
case 39: /* ' -> " */ u = 39; s = 34; break;
case 44: /* , -> < */ u = 44; s = 60; break;
case 45: /* - -> _ */ u = 45; s = 95; break;
case 46: /* . -> > */ u = 46; s = 62; break;
case 47: /* / -> ? */ u = 47; s = 63; break;
case 48: /* 0 -> ) */ u = 48; s = 41; break;
case 49: /* 1 -> ! */ u = 49; s = 33; break;
case 50: /* 2 -> @ */ u = 50; s = 64; break;
case 51: /* 3 -> # */ u = 51; s = 35; break;
case 52: /* 4 -> $ */ u = 52; s = 36; break;
case 53: /* 5 -> % */ u = 53; s = 37; break;
case 54: /* 6 -> ^ */ u = 54; s = 94; break;
case 55: /* 7 -> & */ u = 55; s = 38; break;
case 56: /* 8 -> * */ u = 56; s = 42; break;
case 57: /* 9 -> ( */ u = 57; s = 40; break;
case 59: /* ; -> : */ u = 59; s = 58; break;
case 61: /* = -> + */ u = 61; s = 43; break;
case 91: /* [ -> { */ u = 91; s = 123; break;
case 92: /* \ -> | */ u = 92; s = 124; break;
case 93: /* ] -> } */ u = 93; s = 125; break;
case 96: /* ` -> ~ */ u = 96; s = 126; break;
case 109: /* - -> _ */ u = 45; s = 95; break;
case 111: /* / -> ? */ u = 47; s = 63; break;
case 186: /* ; -> : */ u = 59; s = 58; break;
case 187: /* = -> + */ u = 61; s = 43; break;
case 188: /* , -> < */ u = 44; s = 60; break;
case 189: /* - -> _ */ u = 45; s = 95; break;
case 190: /* . -> > */ u = 46; s = 62; break;
case 191: /* / -> ? */ u = 47; s = 63; break;
case 192: /* ` -> ~ */ u = 96; s = 126; break;
case 219: /* [ -> { */ u = 91; s = 123; break;
case 220: /* \ -> | */ u = 92; s = 124; break;
case 221: /* ] -> } */ u = 93; s = 125; break;
case 222: /* ' -> " */ u = 39; s = 34; break;
default: break;
}
if (s && (event.charCode == u || event.charCode == 0)) {
var fake = [ ];
fake.charCode = s;
fake.keyCode = event.keyCode;
fake.ctrlKey = event.ctrlKey;
fake.shiftKey = event.shiftKey;
fake.altKey = event.altKey;
fake.metaKey = event.metaKey;
return fake;
}
}
return event;
};
VT100.prototype.keyDown = function(event) {
// this.vt100('D: c=' + event.charCode + ', k=' + event.keyCode +
// (event.shiftKey || event.ctrlKey || event.altKey ||
// event.metaKey ? ', ' +
// (event.shiftKey ? 'S' : '') + (event.ctrlKey ? 'C' : '') +
// (event.altKey ? 'A' : '') + (event.metaKey ? 'M' : '') : '') +
// '\r\n');
this.checkComposedKeys(event);
this.lastKeyPressedEvent = undefined;
this.lastKeyDownEvent = undefined;
this.lastNormalKeyDownEvent = event;
var asciiKey =
event.keyCode == 32 ||
event.keyCode >= 48 && event.keyCode <= 57 ||
event.keyCode >= 65 && event.keyCode <= 90;
var alphNumKey =
asciiKey ||
event.keyCode >= 96 && event.keyCode <= 105 ||
event.keyCode == 226;
var normalKey =
alphNumKey ||
event.keyCode == 59 || event.keyCode == 61 ||
event.keyCode == 106 || event.keyCode == 107 ||
event.keyCode >= 109 && event.keyCode <= 111 ||
event.keyCode >= 186 && event.keyCode <= 192 ||
event.keyCode >= 219 && event.keyCode <= 223 ||
event.keyCode == 252;
try {
if (navigator.appName == 'Konqueror') {
normalKey |= event.keyCode < 128;
}
} catch (e) {
}
// We normally prefer to look at keypress events, as they perform the
// translation from keyCode to charCode. This is important, as the
// translation is locale-dependent.
// But for some keys, we must intercept them during the keydown event,
// as they would otherwise get interpreted by the browser.
// Even, when doing all of this, there are some keys that we can never
// intercept. This applies to some of the menu navigation keys in IE.
// In fact, we see them, but we cannot stop IE from seeing them, too.
if ((event.charCode || event.keyCode) &&
((alphNumKey && (event.ctrlKey || event.altKey || event.metaKey) &&
!event.shiftKey &&
// Some browsers signal AltGR as both CTRL and ALT. Do not try to
// interpret this sequence ourselves, as some keyboard layouts use
// it for second-level layouts.
!(event.ctrlKey && event.altKey)) ||
this.catchModifiersEarly && normalKey && !alphNumKey &&
(event.ctrlKey || event.altKey || event.metaKey) ||
!normalKey)) {
this.lastKeyDownEvent = event;
var fake = [ ];
fake.ctrlKey = event.ctrlKey;
fake.shiftKey = event.shiftKey;
fake.altKey = event.altKey;
fake.metaKey = event.metaKey;
if (asciiKey) {
fake.charCode = event.keyCode;
fake.keyCode = 0;
} else {
fake.charCode = 0;
fake.keyCode = event.keyCode;
if (!alphNumKey && event.shiftKey) {
fake = this.fixEvent(fake);
}
}
this.handleKey(fake);
this.lastNormalKeyDownEvent = undefined;
try {
// For non-IE browsers
event.stopPropagation();
event.preventDefault();
} catch (e) {
}
try {
// For IE
event.cancelBubble = true;
event.returnValue = false;
event.keyCode = 0;
} catch (e) {
}
return false;
}
return true;
};
VT100.prototype.keyPressed = function(event) {
// this.vt100('P: c=' + event.charCode + ', k=' + event.keyCode +
// (event.shiftKey || event.ctrlKey || event.altKey ||
// event.metaKey ? ', ' +
// (event.shiftKey ? 'S' : '') + (event.ctrlKey ? 'C' : '') +
// (event.altKey ? 'A' : '') + (event.metaKey ? 'M' : '') : '') +
// '\r\n');
if (this.lastKeyDownEvent) {
// If we already processed the key on keydown, do not process it
// again here. Ideally, the browser should not even have generated a
// keypress event in this case. But that does not appear to always work.
this.lastKeyDownEvent = undefined;
} else {
this.handleKey(event.altKey || event.metaKey
? this.fixEvent(event) : event);
}
try {
// For non-IE browsers
event.preventDefault();
} catch (e) {
}
try {
// For IE
event.cancelBubble = true;
event.returnValue = false;
event.keyCode = 0;
} catch (e) {
}
this.lastNormalKeyDownEvent = undefined;
this.lastKeyPressedEvent = event;
return false;
};
VT100.prototype.keyUp = function(event) {
// this.vt100('U: c=' + event.charCode + ', k=' + event.keyCode +
// (event.shiftKey || event.ctrlKey || event.altKey ||
// event.metaKey ? ', ' +
// (event.shiftKey ? 'S' : '') + (event.ctrlKey ? 'C' : '') +
// (event.altKey ? 'A' : '') + (event.metaKey ? 'M' : '') : '') +
// '\r\n');
if (this.lastKeyPressedEvent) {
// The compose key on Linux occasionally confuses the browser and keeps
// inserting bogus characters into the input field, even if just a regular
// key has been pressed. Detect this case and drop the bogus characters.
(event.target ||
event.srcElement).value = '';
} else {
// This is usually were we notice that a key has been composed and
// thus failed to generate normal events.
this.checkComposedKeys(event);
// Some browsers don't report keypress events if ctrl or alt is pressed
// for non-alphanumerical keys. Patch things up for now, but in the
// future we will catch these keys earlier (in the keydown handler).
if (this.lastNormalKeyDownEvent) {
// this.vt100('ENABLING EARLY CATCHING OF MODIFIER KEYS\r\n');
this.catchModifiersEarly = true;
var asciiKey =
event.keyCode == 32 ||
event.keyCode >= 48 && event.keyCode <= 57 ||
event.keyCode >= 65 && event.keyCode <= 90;
var alphNumKey =
asciiKey ||
event.keyCode >= 96 && event.keyCode <= 105;
var normalKey =
alphNumKey ||
event.keyCode == 59 || event.keyCode == 61 ||
event.keyCode == 106 || event.keyCode == 107 ||
event.keyCode >= 109 && event.keyCode <= 111 ||
event.keyCode >= 186 && event.keyCode <= 192 ||
event.keyCode >= 219 && event.keyCode <= 223 ||
event.keyCode == 252;
var fake = [ ];
fake.ctrlKey = event.ctrlKey;
fake.shiftKey = event.shiftKey;
fake.altKey = event.altKey;
fake.metaKey = event.metaKey;
if (asciiKey) {
fake.charCode = event.keyCode;
fake.keyCode = 0;
} else {
fake.charCode = 0;
fake.keyCode = event.keyCode;
if (!alphNumKey && (event.ctrlKey || event.altKey || event.metaKey)) {
fake = this.fixEvent(fake);
}
}
this.lastNormalKeyDownEvent = undefined;
this.handleKey(fake);
}
}
try {
// For IE
event.cancelBubble = true;
event.returnValue = false;
event.keyCode = 0;
} catch (e) {
}
this.lastKeyDownEvent = undefined;
this.lastKeyPressedEvent = undefined;
return false;
};
VT100.prototype.animateCursor = function(inactive) {
if (!this.cursorInterval) {
this.cursorInterval = setInterval(
function(vt100) {
return function() {
vt100.animateCursor();
// Use this opportunity to check whether the user entered a composed
// key, or whether somebody pasted text into the textfield.
vt100.checkComposedKeys();
}
}(this), 500);
}
if (inactive != undefined || this.cursor.className != 'inactive') {
if (inactive) {
this.cursor.className = 'inactive';
} else {
if (this.blinkingCursor) {
this.cursor.className = this.cursor.className == 'bright'
? 'dim' : 'bright';
} else {
this.cursor.className = 'bright';
}
}
}
};
VT100.prototype.blurCursor = function() {
this.animateCursor(true);
};
VT100.prototype.focusCursor = function() {
this.animateCursor(false);
};
VT100.prototype.flashScreen = function() {
this.isInverted = !this.isInverted;
this.refreshInvertedState();
this.isInverted = !this.isInverted;
setTimeout(function(vt100) {
return function() {
vt100.refreshInvertedState();
};
}(this), 100);
};
VT100.prototype.beep = function() {
if (this.visualBell) {
this.flashScreen();
} else {
try {
this.beeper.Play();
} catch (e) {
try {
this.beeper.src = 'beep.wav';
} catch (e) {
}
}
}
};
VT100.prototype.bs = function() {
if (this.cursorX > 0) {
this.gotoXY(this.cursorX - 1, this.cursorY);
this.needWrap = false;
}
};
VT100.prototype.ht = function(count) {
if (count == undefined) {
count = 1;
}
var cx = this.cursorX;
while (count-- > 0) {
while (cx++ < this.terminalWidth) {
var tabState = this.userTabStop[cx];
if (tabState == false) {
// Explicitly cleared tab stop
continue;
} else if (tabState) {
// Explicitly set tab stop
break;
} else {
// Default tab stop at each eighth column
if (cx % 8 == 0) {
break;
}
}
}
}
if (cx > this.terminalWidth - 1) {
cx = this.terminalWidth - 1;
}
if (cx != this.cursorX) {
this.gotoXY(cx, this.cursorY);
}
};
VT100.prototype.rt = function(count) {
if (count == undefined) {
count = 1 ;
}
var cx = this.cursorX;
while (count-- > 0) {
while (cx-- > 0) {
var tabState = this.userTabStop[cx];
if (tabState == false) {
// Explicitly cleared tab stop
continue;
} else if (tabState) {
// Explicitly set tab stop
break;
} else {
// Default tab stop at each eighth column
if (cx % 8 == 0) {
break;
}
}
}
}
if (cx < 0) {
cx = 0;
}
if (cx != this.cursorX) {
this.gotoXY(cx, this.cursorY);
}
};
VT100.prototype.cr = function() {
this.gotoXY(0, this.cursorY);
this.needWrap = false;
};
VT100.prototype.lf = function(count) {
if (count == undefined) {
count = 1;
} else {
if (count > this.terminalHeight) {
count = this.terminalHeight;
}
if (count < 1) {
count = 1;
}
}
while (count-- > 0) {
if (this.cursorY == this.bottom - 1) {
this.scrollRegion(0, this.top + 1,
this.terminalWidth, this.bottom - this.top - 1,
0, -1, this.color, this.style);
offset = undefined;
} else if (this.cursorY < this.terminalHeight - 1) {
this.gotoXY(this.cursorX, this.cursorY + 1);
}
}
};
VT100.prototype.ri = function(count) {
if (count == undefined) {
count = 1;
} else {
if (count > this.terminalHeight) {
count = this.terminalHeight;
}
if (count < 1) {
count = 1;
}
}
while (count-- > 0) {
if (this.cursorY == this.top) {
this.scrollRegion(0, this.top,
this.terminalWidth, this.bottom - this.top - 1,
0, 1, this.color, this.style);
} else if (this.cursorY > 0) {
this.gotoXY(this.cursorX, this.cursorY - 1);
}
}
this.needWrap = false;
};
VT100.prototype.respondID = function() {
this.respondString += '\u001B[?6c';
};
VT100.prototype.respondSecondaryDA = function() {
this.respondString += '\u001B[>0;0;0c';
};
VT100.prototype.updateStyle = function() {
this.style = '';
if (this.attr & 0x0200 /* ATTR_UNDERLINE */) {
this.style = 'text-decoration: underline;';
}
var bg = (this.attr >> 4) & 0xF;
var fg = this.attr & 0xF;
if (this.attr & 0x0100 /* ATTR_REVERSE */) {
var tmp = bg;
bg = fg;
fg = tmp;
}
if ((this.attr & (0x0100 /* ATTR_REVERSE */ | 0x0400 /* ATTR_DIM */)) == 0x0400 /* ATTR_DIM */) {
fg = 8; // Dark grey
} else if (this.attr & 0x0800 /* ATTR_BRIGHT */) {
fg |= 8;
this.style = 'font-weight: bold;';
}
if (this.attr & 0x1000 /* ATTR_BLINK */) {
this.style = 'text-decoration: blink;';
}
this.color = 'ansi' + fg + ' bgAnsi' + bg;
};
VT100.prototype.setAttrColors = function(attr) {
if (attr != this.attr) {
this.attr = attr;
this.updateStyle();
}
};
VT100.prototype.saveCursor = function() {
this.savedX[this.currentScreen] = this.cursorX;
this.savedY[this.currentScreen] = this.cursorY;
this.savedAttr[this.currentScreen] = this.attr;
this.savedUseGMap = this.useGMap;
for (var i = 0; i < 4; i++) {
this.savedGMap[i] = this.GMap[i];
}
this.savedValid[this.currentScreen] = true;
};
VT100.prototype.restoreCursor = function() {
if (!this.savedValid[this.currentScreen]) {
return;
}
this.attr = this.savedAttr[this.currentScreen];
this.updateStyle();
this.useGMap = this.savedUseGMap;
for (var i = 0; i < 4; i++) {
this.GMap[i] = this.savedGMap[i];
}
this.translate = this.GMap[this.useGMap];
this.needWrap = false;
this.gotoXY(this.savedX[this.currentScreen],
this.savedY[this.currentScreen]);
};
VT100.prototype.getTransformName = function() {
var styles = [ 'transform', 'WebkitTransform', 'MozTransform', 'filter' ];
for (var i = 0; i < styles.length; ++i) {
if (typeof this.console[0].style[styles[i]] != 'undefined') {
return styles[i];
}
}
return undefined;
};
VT100.prototype.getTransformStyle = function(transform, scale) {
return scale && scale != 1.0
? transform == 'filter'
? 'progid:DXImageTransform.Microsoft.Matrix(' +
'M11=' + (1.0/scale) + ',M12=0,M21=0,M22=1,' +
"sizingMethod='auto expand')"
: 'translateX(-50%) ' +
'scaleX(' + (1.0/scale) + ') ' +
'translateX(50%)'
: '';
};
VT100.prototype.set80_132Mode = function(state) {
var transform = this.getTransformName();
if (transform) {
if ((this.console[this.currentScreen].style[transform] != '') == state) {
return;
}
var style = state ?
this.getTransformStyle(transform, 1.65):'';
this.console[this.currentScreen].style[transform] = style;
this.cursor.style[transform] = style;
this.space.style[transform] = style;
this.scale = state ? 1.65 : 1.0;
if (transform == 'filter') {
this.console[this.currentScreen].style.width = state ? '165%' : '';
}
this.resizer();
}
};
VT100.prototype.setMode = function(state) {
for (var i = 0; i <= this.npar; i++) {
if (this.isQuestionMark) {
switch (this.par[i]) {
case 1: this.cursorKeyMode = state; break;
case 3: this.set80_132Mode(state); break;
case 5: this.isInverted = state; this.refreshInvertedState(); break;
case 6: this.offsetMode = state; break;
case 7: this.autoWrapMode = state; break;
case 1000:
case 9: this.mouseReporting = state; break;
case 25: this.cursorNeedsShowing = state;
if (state) { this.showCursor(); }
else { this.hideCursor(); } break;
case 1047:
case 1049:
case 47: this.enableAlternateScreen(state); break;
default: break;
}
} else {
switch (this.par[i]) {
case 3: this.dispCtrl = state; break;
case 4: this.insertMode = state; break;
case 20:this.crLfMode = state; break;
default: break;
}
}
}
};
VT100.prototype.statusReport = function() {
// Ready and operational.
this.respondString += '\u001B[0n';
};
VT100.prototype.cursorReport = function() {
this.respondString += '\u001B[' +
(this.cursorY + (this.offsetMode ? this.top + 1 : 1)) +
';' +
(this.cursorX + 1) +
'R';
};
VT100.prototype.setCursorAttr = function(setAttr, xorAttr) {
// Changing of cursor color is not implemented.
};
VT100.prototype.openPrinterWindow = function() {
var rc = true;
try {
if (!this.printWin || this.printWin.closed) {
this.printWin = window.open('', 'print-output',
'width=800,height=600,directories=no,location=no,menubar=yes,' +
'status=no,toolbar=no,titlebar=yes,scrollbars=yes,resizable=yes');
this.printWin.document.body.innerHTML =
'<link rel="stylesheet" href="' +
document.location.protocol + '//' + document.location.host +
document.location.pathname.replace(/[^/]*$/, '') +
'print-styles.css" type="text/css">\n' +
'<div id="options"><input id="autoprint" type="checkbox"' +
(this.autoprint ? ' checked' : '') + '>' +
'Automatically, print page(s) when job is ready' +
'</input></div>\n' +
'<div id="spacer"><input type="checkbox"> </input></div>' +
'<pre id="print"></pre>\n';
var autoprint = this.printWin.document.getElementById('autoprint');
this.addListener(autoprint, 'click',
(function(vt100, autoprint) {
return function() {
vt100.autoprint = autoprint.checked;
vt100.storeUserSettings();
return false;
};
})(this, autoprint));
this.printWin.document.title = 'ShellInABox Printer Output';
}
} catch (e) {
// Maybe, a popup blocker prevented us from working. Better catch the
// exception, so that we won't break the entire terminal session. The
// user probably needs to disable the blocker first before retrying the
// operation.
rc = false;
}
rc &= this.printWin && !this.printWin.closed &&
(this.printWin.innerWidth ||
this.printWin.document.documentElement.clientWidth ||
this.printWin.document.body.clientWidth) > 1;
if (!rc && this.printing == 100) {
// Different popup blockers work differently. We try to detect a couple
// of common methods. And then we retry again a brief amount later, as
// false positives are otherwise possible. If we are sure that there is
// a popup blocker in effect, we alert the user to it. This is helpful
// as some popup blockers have minimal or no UI, and the user might not
// notice that they are missing the popup. In any case, we only show at
// most one message per print job.
this.printing = true;
setTimeout((function(win) {
return function() {
if (!win || win.closed ||
(win.innerWidth ||
win.document.documentElement.clientWidth ||
win.document.body.clientWidth) <= 1) {
alert('Attempted to print, but a popup blocker ' +
'prevented the printer window from opening');
}
};
})(this.printWin), 2000);
}
return rc;
};
VT100.prototype.sendToPrinter = function(s) {
this.openPrinterWindow();
try {
var doc = this.printWin.document;
var print = doc.getElementById('print');
if (print.lastChild && print.lastChild.nodeName == '#text') {
print.lastChild.textContent += this.replaceChar(s, ' ', '\u00A0');
} else {
print.appendChild(doc.createTextNode(this.replaceChar(s, ' ','\u00A0')));
}
} catch (e) {
// There probably was a more aggressive popup blocker that prevented us
// from accessing the printer windows.
}
};
VT100.prototype.sendControlToPrinter = function(ch) {
// We get called whenever doControl() is active. But for the printer, we
// only implement a basic line printer that doesn't understand most of
// the escape sequences of the VT100 terminal. In fact, the only escape
// sequence that we really need to recognize is '^[[5i' for turning the
// printer off.
try {
switch (ch) {
case 9:
// HT
this.openPrinterWindow();
var doc = this.printWin.document;
var print = doc.getElementById('print');
var chars = print.lastChild &&
print.lastChild.nodeName == '#text' ?
print.lastChild.textContent.length : 0;
this.sendToPrinter(this.spaces(8 - (chars % 8)));
break;
case 10:
// CR
break;
case 12:
// FF
this.openPrinterWindow();
var pageBreak = this.printWin.document.createElement('div');
pageBreak.className = 'pagebreak';
pageBreak.innerHTML = '<hr />';
this.printWin.document.getElementById('print').appendChild(pageBreak);
break;
case 13:
// LF
this.openPrinterWindow();
var lineBreak = this.printWin.document.createElement('br');
this.printWin.document.getElementById('print').appendChild(lineBreak);
break;
case 27:
// ESC
this.isEsc = 1 /* ESesc */;
break;
default:
switch (this.isEsc) {
case 1 /* ESesc */:
this.isEsc = 0 /* ESnormal */;
switch (ch) {
case 0x5B /*[*/:
this.isEsc = 2 /* ESsquare */;
break;
default:
break;
}
break;
case 2 /* ESsquare */:
this.npar = 0;
this.par = [ 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0 ];
this.isEsc = 3 /* ESgetpars */;
this.isQuestionMark = ch == 0x3F /*?*/;
if (this.isQuestionMark) {
break;
}
// Fall through
case 3 /* ESgetpars */:
if (ch == 0x3B /*;*/) {
this.npar++;
break;
} else if (ch >= 0x30 /*0*/ && ch <= 0x39 /*9*/) {
var par = this.par[this.npar];
if (par == undefined) {
par = 0;
}
this.par[this.npar] = 10*par + (ch & 0xF);
break;
} else {
this.isEsc = 4 /* ESgotpars */;
}
// Fall through
case 4 /* ESgotpars */:
this.isEsc = 0 /* ESnormal */;
if (this.isQuestionMark) {
break;
}
switch (ch) {
case 0x69 /*i*/:
this.csii(this.par[0]);
break;
default:
break;
}
break;
default:
this.isEsc = 0 /* ESnormal */;
break;
}
break;
}
} catch (e) {
// There probably was a more aggressive popup blocker that prevented us
// from accessing the printer windows.
}
};
VT100.prototype.csiAt = function(number) {
// Insert spaces
if (number == 0) {
number = 1;
}
if (number > this.terminalWidth - this.cursorX) {
number = this.terminalWidth - this.cursorX;
}
this.scrollRegion(this.cursorX, this.cursorY,
this.terminalWidth - this.cursorX - number, 1,
number, 0, this.color, this.style);
this.needWrap = false;
};
VT100.prototype.csii = function(number) {
// Printer control
switch (number) {
case 0: // Print Screen
window.print();
break;
case 4: // Stop printing
try {
if (this.printing && this.printWin && !this.printWin.closed) {
var print = this.printWin.document.getElementById('print');
while (print.lastChild &&
print.lastChild.tagName == 'DIV' &&
print.lastChild.className == 'pagebreak') {
// Remove trailing blank pages
print.removeChild(print.lastChild);
}
if (this.autoprint) {
this.printWin.print();
}
}
} catch (e) {
}
this.printing = false;
break;
case 5: // Start printing
if (!this.printing && this.printWin && !this.printWin.closed) {
this.printWin.document.getElementById('print').innerHTML = '';
}
this.printing = 100;
break;
default:
break;
}
};
VT100.prototype.csiJ = function(number) {
switch (number) {
case 0: // Erase from cursor to end of display
this.clearRegion(this.cursorX, this.cursorY,
this.terminalWidth - this.cursorX, 1,
this.color, this.style);
if (this.cursorY < this.terminalHeight-2) {
this.clearRegion(0, this.cursorY+1,
this.terminalWidth, this.terminalHeight-this.cursorY-1,
this.color, this.style);
}
break;
case 1: // Erase from start to cursor
if (this.cursorY > 0) {
this.clearRegion(0, 0,
this.terminalWidth, this.cursorY,
this.color, this.style);
}
this.clearRegion(0, this.cursorY, this.cursorX + 1, 1,
this.color, this.style);
break;
case 2: // Erase whole display
this.clearRegion(0, 0, this.terminalWidth, this.terminalHeight,
this.color, this.style);
break;
default:
return;
}
needWrap = false;
};
VT100.prototype.csiK = function(number) {
switch (number) {
case 0: // Erase from cursor to end of line
this.clearRegion(this.cursorX, this.cursorY,
this.terminalWidth - this.cursorX, 1,
this.color, this.style);
break;
case 1: // Erase from start of line to cursor
this.clearRegion(0, this.cursorY, this.cursorX + 1, 1,
this.color, this.style);
break;
case 2: // Erase whole line
this.clearRegion(0, this.cursorY, this.terminalWidth, 1,
this.color, this.style);
break;
default:
return;
}
needWrap = false;
};
VT100.prototype.csiL = function(number) {
// Open line by inserting blank line(s)
if (this.cursorY >= this.bottom) {
return;
}
if (number == 0) {
number = 1;
}
if (number > this.bottom - this.cursorY) {
number = this.bottom - this.cursorY;
}
this.scrollRegion(0, this.cursorY,
this.terminalWidth, this.bottom - this.cursorY - number,
0, number, this.color, this.style);
needWrap = false;
};
VT100.prototype.csiM = function(number) {
// Delete line(s), scrolling up the bottom of the screen.
if (this.cursorY >= this.bottom) {
return;
}
if (number == 0) {
number = 1;
}
if (number > this.bottom - this.cursorY) {
number = bottom - cursorY;
}
this.scrollRegion(0, this.cursorY + number,
this.terminalWidth, this.bottom - this.cursorY - number,
0, -number, this.color, this.style);
needWrap = false;
};
VT100.prototype.csim = function() {
for (var i = 0; i <= this.npar; i++) {
switch (this.par[i]) {
case 0: this.attr = 0x00F0 /* ATTR_DEFAULT */; break;
case 1: this.attr = (this.attr & ~0x0400 /* ATTR_DIM */)|0x0800 /* ATTR_BRIGHT */; break;
case 2: this.attr = (this.attr & ~0x0800 /* ATTR_BRIGHT */)|0x0400 /* ATTR_DIM */; break;
case 4: this.attr |= 0x0200 /* ATTR_UNDERLINE */; break;
case 5: this.attr |= 0x1000 /* ATTR_BLINK */; break;
case 7: this.attr |= 0x0100 /* ATTR_REVERSE */; break;
case 10:
this.translate = this.GMap[this.useGMap];
this.dispCtrl = false;
this.toggleMeta = false;
break;
case 11:
this.translate = this.CodePage437Map;
this.dispCtrl = true;
this.toggleMeta = false;
break;
case 12:
this.translate = this.CodePage437Map;
this.dispCtrl = true;
this.toggleMeta = true;
break;
case 21:
case 22: this.attr &= ~(0x0800 /* ATTR_BRIGHT */|0x0400 /* ATTR_DIM */); break;
case 24: this.attr &= ~ 0x0200 /* ATTR_UNDERLINE */; break;
case 25: this.attr &= ~ 0x1000 /* ATTR_BLINK */; break;
case 27: this.attr &= ~ 0x0100 /* ATTR_REVERSE */; break;
case 38: this.attr = (this.attr & ~(0x0400 /* ATTR_DIM */|0x0800 /* ATTR_BRIGHT */|0x0F))|
0x0200 /* ATTR_UNDERLINE */; break;
case 39: this.attr &= ~(0x0400 /* ATTR_DIM */|0x0800 /* ATTR_BRIGHT */|0x0200 /* ATTR_UNDERLINE */|0x0F); break;
case 49: this.attr |= 0xF0; break;
default:
if (this.par[i] >= 30 && this.par[i] <= 37) {
var fg = this.par[i] - 30;
this.attr = (this.attr & ~0x0F) | fg;
} else if (this.par[i] >= 40 && this.par[i] <= 47) {
var bg = this.par[i] - 40;
this.attr = (this.attr & ~0xF0) | (bg << 4);
}
break;
}
}
this.updateStyle();
};
VT100.prototype.csiP = function(number) {
// Delete character(s) following cursor
if (number == 0) {
number = 1;
}
if (number > this.terminalWidth - this.cursorX) {
number = this.terminalWidth - this.cursorX;
}
this.scrollRegion(this.cursorX + number, this.cursorY,
this.terminalWidth - this.cursorX - number, 1,
-number, 0, this.color, this.style);
needWrap = false;
};
VT100.prototype.csiX = function(number) {
// Clear characters following cursor
if (number == 0) {
number++;
}
if (number > this.terminalWidth - this.cursorX) {
number = this.terminalWidth - this.cursorX;
}
this.clearRegion(this.cursorX, this.cursorY, number, 1,
this.color, this.style);
needWrap = false;
};
VT100.prototype.settermCommand = function() {
// Setterm commands are not implemented
};
VT100.prototype.doControl = function(ch) {
if (this.printing) {
this.sendControlToPrinter(ch);
return '';
}
var lineBuf = '';
switch (ch) {
case 0x00: /* ignored */ break;
case 0x08: this.bs(); break;
case 0x09: this.ht(); break;
case 0x0A:
case 0x0B:
case 0x0C:
case 0x84: this.lf(); if (!this.crLfMode) break;
case 0x0D: this.cr(); break;
case 0x85: this.cr(); this.lf(); break;
case 0x0E: this.useGMap = 1;
this.translate = this.GMap[1];
this.dispCtrl = true; break;
case 0x0F: this.useGMap = 0;
this.translate = this.GMap[0];
this.dispCtrl = false; break;
case 0x18:
case 0x1A: this.isEsc = 0 /* ESnormal */; break;
case 0x1B: this.isEsc = 1 /* ESesc */; break;
case 0x7F: /* ignored */ break;
case 0x88: this.userTabStop[this.cursorX] = true; break;
case 0x8D: this.ri(); break;
case 0x8E: this.isEsc = 18 /* ESss2 */; break;
case 0x8F: this.isEsc = 19 /* ESss3 */; break;
case 0x9A: this.respondID(); break;
case 0x9B: this.isEsc = 2 /* ESsquare */; break;
case 0x07: if (this.isEsc != 17 /* EStitle */) {
this.beep(); break;
}
/* fall thru */
default: switch (this.isEsc) {
case 1 /* ESesc */:
this.isEsc = 0 /* ESnormal */;
switch (ch) {
/*%*/ case 0x25: this.isEsc = 13 /* ESpercent */; break;
/*(*/ case 0x28: this.isEsc = 8 /* ESsetG0 */; break;
/*-*/ case 0x2D:
/*)*/ case 0x29: this.isEsc = 9 /* ESsetG1 */; break;
/*.*/ case 0x2E:
/***/ case 0x2A: this.isEsc = 10 /* ESsetG2 */; break;
/*/*/ case 0x2F:
/*+*/ case 0x2B: this.isEsc = 11 /* ESsetG3 */; break;
/*#*/ case 0x23: this.isEsc = 7 /* EShash */; break;
/*7*/ case 0x37: this.saveCursor(); break;
/*8*/ case 0x38: this.restoreCursor(); break;
/*>*/ case 0x3E: this.applKeyMode = false; break;
/*=*/ case 0x3D: this.applKeyMode = true; break;
/*D*/ case 0x44: this.lf(); break;
/*E*/ case 0x45: this.cr(); this.lf(); break;
/*M*/ case 0x4D: this.ri(); break;
/*N*/ case 0x4E: this.isEsc = 18 /* ESss2 */; break;
/*O*/ case 0x4F: this.isEsc = 19 /* ESss3 */; break;
/*H*/ case 0x48: this.userTabStop[this.cursorX] = true; break;
/*Z*/ case 0x5A: this.respondID(); break;
/*[*/ case 0x5B: this.isEsc = 2 /* ESsquare */; break;
/*]*/ case 0x5D: this.isEsc = 15 /* ESnonstd */; break;
/*c*/ case 0x63: this.reset(); break;
/*g*/ case 0x67: this.flashScreen(); break;
default: break;
}
break;
case 15 /* ESnonstd */:
switch (ch) {
/*0*/ case 0x30:
/*1*/ case 0x31:
/*2*/ case 0x32: this.isEsc = 17 /* EStitle */; this.titleString = ''; break;
/*P*/ case 0x50: this.npar = 0; this.par = [ 0, 0, 0, 0, 0, 0, 0 ];
this.isEsc = 16 /* ESpalette */; break;
/*R*/ case 0x52: // Palette support is not implemented
this.isEsc = 0 /* ESnormal */; break;
default: this.isEsc = 0 /* ESnormal */; break;
}
break;
case 16 /* ESpalette */:
if ((ch >= 0x30 /*0*/ && ch <= 0x39 /*9*/) ||
(ch >= 0x41 /*A*/ && ch <= 0x46 /*F*/) ||
(ch >= 0x61 /*a*/ && ch <= 0x66 /*f*/)) {
this.par[this.npar++] = ch > 0x39 /*9*/ ? (ch & 0xDF) - 55
: (ch & 0xF);
if (this.npar == 7) {
// Palette support is not implemented
this.isEsc = 0 /* ESnormal */;
}
} else {
this.isEsc = 0 /* ESnormal */;
}
break;
case 2 /* ESsquare */:
this.npar = 0;
this.par = [ 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0 ];
this.isEsc = 3 /* ESgetpars */;
/*[*/ if (ch == 0x5B) { // Function key
this.isEsc = 6 /* ESfunckey */;
break;
} else {
/*?*/ this.isQuestionMark = ch == 0x3F;
if (this.isQuestionMark) {
break;
}
}
// Fall through
case 5 /* ESdeviceattr */:
case 3 /* ESgetpars */:
/*;*/ if (ch == 0x3B) {
this.npar++;
break;
} else if (ch >= 0x30 /*0*/ && ch <= 0x39 /*9*/) {
var par = this.par[this.npar];
if (par == undefined) {
par = 0;
}
this.par[this.npar] = 10*par + (ch & 0xF);
break;
} else if (this.isEsc == 5 /* ESdeviceattr */) {
switch (ch) {
/*c*/ case 0x63: if (this.par[0] == 0) this.respondSecondaryDA(); break;
/*m*/ case 0x6D: /* (re)set key modifier resource values */ break;
/*n*/ case 0x6E: /* disable key modifier resource values */ break;
/*p*/ case 0x70: /* set pointer mode resource value */ break;
default: break;
}
this.isEsc = 0 /* ESnormal */;
break;
} else {
this.isEsc = 4 /* ESgotpars */;
}
// Fall through
case 4 /* ESgotpars */:
this.isEsc = 0 /* ESnormal */;
if (this.isQuestionMark) {
switch (ch) {
/*h*/ case 0x68: this.setMode(true); break;
/*l*/ case 0x6C: this.setMode(false); break;
/*c*/ case 0x63: this.setCursorAttr(this.par[2], this.par[1]); break;
default: break;
}
this.isQuestionMark = false;
break;
}
switch (ch) {
/*!*/ case 0x21: this.isEsc = 12 /* ESbang */; break;
/*>*/ case 0x3E: if (!this.npar) this.isEsc = 5 /* ESdeviceattr */; break;
/*G*/ case 0x47:
/*`*/ case 0x60: this.gotoXY(this.par[0] - 1, this.cursorY); break;
/*A*/ case 0x41: this.gotoXY(this.cursorX,
this.cursorY - (this.par[0] ? this.par[0] : 1));
break;
/*B*/ case 0x42:
/*e*/ case 0x65: this.gotoXY(this.cursorX,
this.cursorY + (this.par[0] ? this.par[0] : 1));
break;
/*C*/ case 0x43:
/*a*/ case 0x61: this.gotoXY(this.cursorX + (this.par[0] ? this.par[0] : 1),
this.cursorY); break;
/*D*/ case 0x44: this.gotoXY(this.cursorX - (this.par[0] ? this.par[0] : 1),
this.cursorY); break;
/*E*/ case 0x45: this.gotoXY(0, this.cursorY + (this.par[0] ? this.par[0] :1));
break;
/*F*/ case 0x46: this.gotoXY(0, this.cursorY - (this.par[0] ? this.par[0] :1));
break;
/*d*/ case 0x64: this.gotoXaY(this.cursorX, this.par[0] - 1); break;
/*H*/ case 0x48:
/*f*/ case 0x66: this.gotoXaY(this.par[1] - 1, this.par[0] - 1); break;
/*I*/ case 0x49: this.ht(this.par[0] ? this.par[0] : 1); break;
/*@*/ case 0x40: this.csiAt(this.par[0]); break;
/*i*/ case 0x69: this.csii(this.par[0]); break;
/*J*/ case 0x4A: this.csiJ(this.par[0]); break;
/*K*/ case 0x4B: this.csiK(this.par[0]); break;
/*L*/ case 0x4C: this.csiL(this.par[0]); break;
/*M*/ case 0x4D: this.csiM(this.par[0]); break;
/*m*/ case 0x6D: this.csim(); break;
/*P*/ case 0x50: this.csiP(this.par[0]); break;
/*X*/ case 0x58: this.csiX(this.par[0]); break;
/*S*/ case 0x53: this.lf(this.par[0] ? this.par[0] : 1); break;
/*T*/ case 0x54: this.ri(this.par[0] ? this.par[0] : 1); break;
/*c*/ case 0x63: if (!this.par[0]) this.respondID(); break;
/*g*/ case 0x67: if (this.par[0] == 0) {
this.userTabStop[this.cursorX] = false;
} else if (this.par[0] == 2 || this.par[0] == 3) {
this.userTabStop = [ ];
for (var i = 0; i < this.terminalWidth; i++) {
this.userTabStop[i] = false;
}
}
break;
/*h*/ case 0x68: this.setMode(true); break;
/*l*/ case 0x6C: this.setMode(false); break;
/*n*/ case 0x6E: switch (this.par[0]) {
case 5: this.statusReport(); break;
case 6: this.cursorReport(); break;
default: break;
}
break;
/*q*/ case 0x71: // LED control not implemented
break;
/*r*/ case 0x72: var t = this.par[0] ? this.par[0] : 1;
var b = this.par[1] ? this.par[1]
: this.terminalHeight;
if (t < b && b <= this.terminalHeight) {
this.top = t - 1;
this.bottom= b;
this.gotoXaY(0, 0);
}
break;
/*b*/ case 0x62: var c = this.par[0] ? this.par[0] : 1;
if (c > this.terminalWidth * this.terminalHeight) {
c = this.terminalWidth * this.terminalHeight;
}
while (c-- > 0) {
lineBuf += this.lastCharacter;
}
break;
/*s*/ case 0x73: this.saveCursor(); break;
/*u*/ case 0x75: this.restoreCursor(); break;
/*Z*/ case 0x5A: this.rt(this.par[0] ? this.par[0] : 1); break;
/*]*/ case 0x5D: this.settermCommand(); break;
default: break;
}
break;
case 12 /* ESbang */:
if (ch == 'p') {
this.reset();
}
this.isEsc = 0 /* ESnormal */;
break;
case 13 /* ESpercent */:
this.isEsc = 0 /* ESnormal */;
switch (ch) {
/*@*/ case 0x40: this.utfEnabled = false; break;
/*G*/ case 0x47:
/*8*/ case 0x38: this.utfEnabled = true; break;
default: break;
}
break;
case 6 /* ESfunckey */:
this.isEsc = 0 /* ESnormal */; break;
case 7 /* EShash */:
this.isEsc = 0 /* ESnormal */;
/*8*/ if (ch == 0x38) {
// Screen alignment test not implemented
}
break;
case 8 /* ESsetG0 */:
case 9 /* ESsetG1 */:
case 10 /* ESsetG2 */:
case 11 /* ESsetG3 */:
var g = this.isEsc - 8 /* ESsetG0 */;
this.isEsc = 0 /* ESnormal */;
switch (ch) {
/*0*/ case 0x30: this.GMap[g] = this.VT100GraphicsMap; break;
/*A*/ case 0x42:
/*B*/ case 0x42: this.GMap[g] = this.Latin1Map; break;
/*U*/ case 0x55: this.GMap[g] = this.CodePage437Map; break;
/*K*/ case 0x4B: this.GMap[g] = this.DirectToFontMap; break;
default: break;
}
if (this.useGMap == g) {
this.translate = this.GMap[g];
}
break;
case 17 /* EStitle */:
if (ch == 0x07) {
if (this.titleString && this.titleString.charAt(0) == ';') {
this.titleString = this.titleString.substr(1);
if (this.titleString != '') {
this.titleString += ' - ';
}
this.titleString += 'Shell In A Box'
}
try {
window.document.title = this.titleString;
} catch (e) {
}
this.isEsc = 0 /* ESnormal */;
} else {
this.titleString += String.fromCharCode(ch);
}
break;
case 18 /* ESss2 */:
case 19 /* ESss3 */:
if (ch < 256) {
ch = this.GMap[this.isEsc - 18 /* ESss2 */ + 2]
[this.toggleMeta ? (ch | 0x80) : ch];
if ((ch & 0xFF00) == 0xF000) {
ch = ch & 0xFF;
} else if (ch == 0xFEFF || (ch >= 0x200A && ch <= 0x200F)) {
this.isEsc = 0 /* ESnormal */; break;
}
}
this.lastCharacter = String.fromCharCode(ch);
lineBuf += this.lastCharacter;
this.isEsc = 0 /* ESnormal */; break;
default:
this.isEsc = 0 /* ESnormal */; break;
}
break;
}
return lineBuf;
};
VT100.prototype.renderString = function(s, showCursor) {
if (this.printing) {
this.sendToPrinter(s);
if (showCursor) {
this.showCursor();
}
return;
}
// We try to minimize the number of DOM operations by coalescing individual
// characters into strings. This is a significant performance improvement.
var incX = s.length;
if (incX > this.terminalWidth - this.cursorX) {
incX = this.terminalWidth - this.cursorX;
if (incX <= 0) {
return;
}
s = s.substr(0, incX - 1) + s.charAt(s.length - 1);
}
if (showCursor) {
// Minimize the number of calls to putString(), by avoiding a direct
// call to this.showCursor()
this.cursor.style.visibility = '';
}
this.putString(this.cursorX, this.cursorY, s, this.color, this.style);
};
VT100.prototype.vt100 = function(s) {
this.cursorNeedsShowing = this.hideCursor();
this.respondString = '';
var lineBuf = '';
for (var i = 0; i < s.length; i++) {
var ch = s.charCodeAt(i);
if (this.utfEnabled) {
// Decode UTF8 encoded character
if (ch > 0x7F) {
if (this.utfCount > 0 && (ch & 0xC0) == 0x80) {
this.utfChar = (this.utfChar << 6) | (ch & 0x3F);
if (--this.utfCount <= 0) {
if (this.utfChar > 0xFFFF || this.utfChar < 0) {
ch = 0xFFFD;
} else {
ch = this.utfChar;
}
} else {
continue;
}
} else {
if ((ch & 0xE0) == 0xC0) {
this.utfCount = 1;
this.utfChar = ch & 0x1F;
} else if ((ch & 0xF0) == 0xE0) {
this.utfCount = 2;
this.utfChar = ch & 0x0F;
} else if ((ch & 0xF8) == 0xF0) {
this.utfCount = 3;
this.utfChar = ch & 0x07;
} else if ((ch & 0xFC) == 0xF8) {
this.utfCount = 4;
this.utfChar = ch & 0x03;
} else if ((ch & 0xFE) == 0xFC) {
this.utfCount = 5;
this.utfChar = ch & 0x01;
} else {
this.utfCount = 0;
}
continue;
}
} else {
this.utfCount = 0;
}
}
var isNormalCharacter =
(ch >= 32 && ch <= 127 || ch >= 160 ||
this.utfEnabled && ch >= 128 ||
!(this.dispCtrl ? this.ctrlAlways : this.ctrlAction)[ch & 0x1F]) &&
(ch != 0x7F || this.dispCtrl);
if (isNormalCharacter && this.isEsc == 0 /* ESnormal */) {
if (ch < 256) {
ch = this.translate[this.toggleMeta ? (ch | 0x80) : ch];
}
if ((ch & 0xFF00) == 0xF000) {
ch = ch & 0xFF;
} else if (ch == 0xFEFF || (ch >= 0x200A && ch <= 0x200F)) {
continue;
}
if (!this.printing) {
if (this.needWrap || this.insertMode) {
if (lineBuf) {
this.renderString(lineBuf);
lineBuf = '';
}
}
if (this.needWrap) {
this.cr(); this.lf();
}
if (this.insertMode) {
this.scrollRegion(this.cursorX, this.cursorY,
this.terminalWidth - this.cursorX - 1, 1,
1, 0, this.color, this.style);
}
}
this.lastCharacter = String.fromCharCode(ch);
lineBuf += this.lastCharacter;
if (!this.printing &&
this.cursorX + lineBuf.length >= this.terminalWidth) {
this.needWrap = this.autoWrapMode;
}
} else {
if (lineBuf) {
this.renderString(lineBuf);
lineBuf = '';
}
var expand = this.doControl(ch);
if (expand.length) {
var r = this.respondString;
this.respondString= r + this.vt100(expand);
}
}
}
if (lineBuf) {
this.renderString(lineBuf, this.cursorNeedsShowing);
} else if (this.cursorNeedsShowing) {
this.showCursor();
}
return this.respondString;
};
VT100.prototype.Latin1Map = [
0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007,
0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F,
0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017,
0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F,
0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F,
0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F,
0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F,
0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
0x0058, 0x0059, 0x005A, 0x005B, 0x005C, 0x005D, 0x005E, 0x005F,
0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,
0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F,
0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,
0x0078, 0x0079, 0x007A, 0x007B, 0x007C, 0x007D, 0x007E, 0x007F,
0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087,
0x0088, 0x0089, 0x008A, 0x008B, 0x008C, 0x008D, 0x008E, 0x008F,
0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
0x0098, 0x0099, 0x009A, 0x009B, 0x009C, 0x009D, 0x009E, 0x009F,
0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7,
0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF,
0x00D0, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7,
0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x00DE, 0x00DF,
0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7,
0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF,
0x00F0, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7,
0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x00FE, 0x00FF
];
VT100.prototype.VT100GraphicsMap = [
0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007,
0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F,
0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017,
0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F,
0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
0x0028, 0x0029, 0x002A, 0x2192, 0x2190, 0x2191, 0x2193, 0x002F,
0x2588, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F,
0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F,
0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
0x0058, 0x0059, 0x005A, 0x005B, 0x005C, 0x005D, 0x005E, 0x00A0,
0x25C6, 0x2592, 0x2409, 0x240C, 0x240D, 0x240A, 0x00B0, 0x00B1,
0x2591, 0x240B, 0x2518, 0x2510, 0x250C, 0x2514, 0x253C, 0xF800,
0xF801, 0x2500, 0xF803, 0xF804, 0x251C, 0x2524, 0x2534, 0x252C,
0x2502, 0x2264, 0x2265, 0x03C0, 0x2260, 0x00A3, 0x00B7, 0x007F,
0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087,
0x0088, 0x0089, 0x008A, 0x008B, 0x008C, 0x008D, 0x008E, 0x008F,
0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
0x0098, 0x0099, 0x009A, 0x009B, 0x009C, 0x009D, 0x009E, 0x009F,
0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7,
0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF,
0x00D0, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7,
0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x00DE, 0x00DF,
0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7,
0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF,
0x00F0, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7,
0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x00FE, 0x00FF
];
VT100.prototype.CodePage437Map = [
0x0000, 0x263A, 0x263B, 0x2665, 0x2666, 0x2663, 0x2660, 0x2022,
0x25D8, 0x25CB, 0x25D9, 0x2642, 0x2640, 0x266A, 0x266B, 0x263C,
0x25B6, 0x25C0, 0x2195, 0x203C, 0x00B6, 0x00A7, 0x25AC, 0x21A8,
0x2191, 0x2193, 0x2192, 0x2190, 0x221F, 0x2194, 0x25B2, 0x25BC,
0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F,
0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F,
0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F,
0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
0x0058, 0x0059, 0x005A, 0x005B, 0x005C, 0x005D, 0x005E, 0x005F,
0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,
0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F,
0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,
0x0078, 0x0079, 0x007A, 0x007B, 0x007C, 0x007D, 0x007E, 0x2302,
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, 0x00BA,
0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,
0x2591, 0x2592, 0x2593, 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, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B,
0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,
0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4,
0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229,
0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248,
0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0
];
VT100.prototype.DirectToFontMap = [
0xF000, 0xF001, 0xF002, 0xF003, 0xF004, 0xF005, 0xF006, 0xF007,
0xF008, 0xF009, 0xF00A, 0xF00B, 0xF00C, 0xF00D, 0xF00E, 0xF00F,
0xF010, 0xF011, 0xF012, 0xF013, 0xF014, 0xF015, 0xF016, 0xF017,
0xF018, 0xF019, 0xF01A, 0xF01B, 0xF01C, 0xF01D, 0xF01E, 0xF01F,
0xF020, 0xF021, 0xF022, 0xF023, 0xF024, 0xF025, 0xF026, 0xF027,
0xF028, 0xF029, 0xF02A, 0xF02B, 0xF02C, 0xF02D, 0xF02E, 0xF02F,
0xF030, 0xF031, 0xF032, 0xF033, 0xF034, 0xF035, 0xF036, 0xF037,
0xF038, 0xF039, 0xF03A, 0xF03B, 0xF03C, 0xF03D, 0xF03E, 0xF03F,
0xF040, 0xF041, 0xF042, 0xF043, 0xF044, 0xF045, 0xF046, 0xF047,
0xF048, 0xF049, 0xF04A, 0xF04B, 0xF04C, 0xF04D, 0xF04E, 0xF04F,
0xF050, 0xF051, 0xF052, 0xF053, 0xF054, 0xF055, 0xF056, 0xF057,
0xF058, 0xF059, 0xF05A, 0xF05B, 0xF05C, 0xF05D, 0xF05E, 0xF05F,
0xF060, 0xF061, 0xF062, 0xF063, 0xF064, 0xF065, 0xF066, 0xF067,
0xF068, 0xF069, 0xF06A, 0xF06B, 0xF06C, 0xF06D, 0xF06E, 0xF06F,
0xF070, 0xF071, 0xF072, 0xF073, 0xF074, 0xF075, 0xF076, 0xF077,
0xF078, 0xF079, 0xF07A, 0xF07B, 0xF07C, 0xF07D, 0xF07E, 0xF07F,
0xF080, 0xF081, 0xF082, 0xF083, 0xF084, 0xF085, 0xF086, 0xF087,
0xF088, 0xF089, 0xF08A, 0xF08B, 0xF08C, 0xF08D, 0xF08E, 0xF08F,
0xF090, 0xF091, 0xF092, 0xF093, 0xF094, 0xF095, 0xF096, 0xF097,
0xF098, 0xF099, 0xF09A, 0xF09B, 0xF09C, 0xF09D, 0xF09E, 0xF09F,
0xF0A0, 0xF0A1, 0xF0A2, 0xF0A3, 0xF0A4, 0xF0A5, 0xF0A6, 0xF0A7,
0xF0A8, 0xF0A9, 0xF0AA, 0xF0AB, 0xF0AC, 0xF0AD, 0xF0AE, 0xF0AF,
0xF0B0, 0xF0B1, 0xF0B2, 0xF0B3, 0xF0B4, 0xF0B5, 0xF0B6, 0xF0B7,
0xF0B8, 0xF0B9, 0xF0BA, 0xF0BB, 0xF0BC, 0xF0BD, 0xF0BE, 0xF0BF,
0xF0C0, 0xF0C1, 0xF0C2, 0xF0C3, 0xF0C4, 0xF0C5, 0xF0C6, 0xF0C7,
0xF0C8, 0xF0C9, 0xF0CA, 0xF0CB, 0xF0CC, 0xF0CD, 0xF0CE, 0xF0CF,
0xF0D0, 0xF0D1, 0xF0D2, 0xF0D3, 0xF0D4, 0xF0D5, 0xF0D6, 0xF0D7,
0xF0D8, 0xF0D9, 0xF0DA, 0xF0DB, 0xF0DC, 0xF0DD, 0xF0DE, 0xF0DF,
0xF0E0, 0xF0E1, 0xF0E2, 0xF0E3, 0xF0E4, 0xF0E5, 0xF0E6, 0xF0E7,
0xF0E8, 0xF0E9, 0xF0EA, 0xF0EB, 0xF0EC, 0xF0ED, 0xF0EE, 0xF0EF,
0xF0F0, 0xF0F1, 0xF0F2, 0xF0F3, 0xF0F4, 0xF0F5, 0xF0F6, 0xF0F7,
0xF0F8, 0xF0F9, 0xF0FA, 0xF0FB, 0xF0FC, 0xF0FD, 0xF0FE, 0xF0FF
];
VT100.prototype.ctrlAction = [
true, false, false, false, false, false, false, true,
true, true, true, true, true, true, true, true,
false, false, false, false, false, false, false, false,
true, false, true, true, false, false, false, false
];
VT100.prototype.ctrlAlways = [
true, false, false, false, false, false, false, false,
true, false, true, false, true, true, true, true,
false, false, false, false, false, false, false, false,
false, false, false, true, false, false, false, false
];
(function () {
var test = "hello";
//alert("searching Wikipedia" + test);
})();
