9eb1693630
git-svn-id: https://shellinabox.googlecode.com/svn/trunk@183 0da03de8-d603-11dd-86c2-0f8696b7b6f9
3844 lines
147 KiB
JavaScript
3844 lines
147 KiB
JavaScript
// VT100.js -- JavaScript based terminal emulator
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// Copyright (C) 2008-2009 Markus Gutschke <markus@shellinabox.com>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2 as
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// published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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// In addition to these license terms, the author grants the following
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// additional rights:
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//
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// If you modify this program, or any covered work, by linking or
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// combining it with the OpenSSL project's OpenSSL library (or a
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// modified version of that library), containing parts covered by the
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// terms of the OpenSSL or SSLeay licenses, the author
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// grants you additional permission to convey the resulting work.
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// Corresponding Source for a non-source form of such a combination
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// shall include the source code for the parts of OpenSSL used as well
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// as that of the covered work.
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//
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// You may at your option choose to remove this additional permission from
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// the work, or from any part of it.
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//
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// It is possible to build this program in a way that it loads OpenSSL
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// libraries at run-time. If doing so, the following notices are required
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// by the OpenSSL and SSLeay licenses:
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//
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// This product includes software developed by the OpenSSL Project
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// for use in the OpenSSL Toolkit. (http://www.openssl.org/)
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//
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// This product includes cryptographic software written by Eric Young
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// (eay@cryptsoft.com)
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//
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//
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// The most up-to-date version of this program is always available from
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// http://shellinabox.com
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//
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//
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// Notes:
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//
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// The author believes that for the purposes of this license, you meet the
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// requirements for publishing the source code, if your web server publishes
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// the source in unmodified form (i.e. with licensing information, comments,
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// formatting, and identifier names intact). If there are technical reasons
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// that require you to make changes to the source code when serving the
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// JavaScript (e.g to remove pre-processor directives from the source), these
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// changes should be done in a reversible fashion.
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//
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// The author does not consider websites that reference this script in
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// unmodified form, and web servers that serve this script in unmodified form
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// to be derived works. As such, they are believed to be outside of the
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// scope of this license and not subject to the rights or restrictions of the
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// GNU General Public License.
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//
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// If in doubt, consult a legal professional familiar with the laws that
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// apply in your country.
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// #define ESnormal 0
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// #define ESesc 1
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// #define ESsquare 2
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// #define ESgetpars 3
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// #define ESgotpars 4
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// #define ESdeviceattr 5
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// #define ESfunckey 6
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// #define EShash 7
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// #define ESsetG0 8
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// #define ESsetG1 9
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// #define ESsetG2 10
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// #define ESsetG3 11
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// #define ESbang 12
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// #define ESpercent 13
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// #define ESignore 14
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// #define ESnonstd 15
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// #define ESpalette 16
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// #define ESstatus 17
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// #define ESss2 18
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// #define ESss3 19
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// #define ATTR_DEFAULT 0x00F0
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// #define ATTR_REVERSE 0x0100
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// #define ATTR_UNDERLINE 0x0200
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// #define ATTR_DIM 0x0400
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// #define ATTR_BRIGHT 0x0800
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// #define ATTR_BLINK 0x1000
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// #define MOUSE_DOWN 0
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// #define MOUSE_UP 1
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// #define MOUSE_CLICK 2
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function VT100(container) {
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if (typeof linkifyURLs == 'undefined' || linkifyURLs <= 0) {
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this.urlRE = null;
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} else {
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this.urlRE = new RegExp(
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// Known URL protocol are "http", "https", and "ftp".
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'(?:http|https|ftp)://' +
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// Optionally allow username and passwords.
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'(?:[^:@/ \u00A0]*(?::[^@/ \u00A0]*)?@)?' +
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// Hostname.
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'(?:[1-9][0-9]{0,2}(?:[.][1-9][0-9]{0,2}){3}|' +
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'[0-9a-fA-F]{0,4}(?::{1,2}[0-9a-fA-F]{1,4})+|' +
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'(?!-)[^[!"#$%&\'()*+,/:;<=>?@\\^_`{|}~\u0000- \u007F-\u00A0]+)' +
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// Port
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'(?::[1-9][0-9]*)?' +
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// Path.
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'(?:/(?:(?![/ \u00A0]|[,.)}"\u0027!]+[ \u00A0]|[,.)}"\u0027!]+$).)*)*|' +
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(linkifyURLs <= 1 ? '' :
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// Also support URLs without a protocol (assume "http").
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// Optional username and password.
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'(?:[^:@/ \u00A0]*(?::[^@/ \u00A0]*)?@)?' +
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// Hostnames must end with a well-known top-level domain or must be
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// numeric.
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'(?:[1-9][0-9]{0,2}(?:[.][1-9][0-9]{0,2}){3}|' +
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'localhost|' +
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'(?:(?!-)' +
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'[^.[!"#$%&\'()*+,/:;<=>?@\\^_`{|}~\u0000- \u007F-\u00A0]+[.]){2,}' +
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'(?:(?:com|net|org|edu|gov|aero|asia|biz|cat|coop|info|int|jobs|mil|mobi|'+
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'museum|name|pro|tel|travel|ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|' +
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'au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|' +
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'ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cu|cv|cx|cy|cz|de|dj|dk|dm|do|' +
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'dz|ec|ee|eg|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|' +
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'gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|' +
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'ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|' +
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'lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|' +
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'mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|' +
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'pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|' +
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'sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tl|tm|tn|to|' +
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'tp|tr|tt|tv|tw|tz|ua|ug|uk|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|' +
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'yu|za|zm|zw|arpa)(?![a-zA-Z0-9])|[Xx][Nn]--[-a-zA-Z0-9]+))' +
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// Port
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'(?::[1-9][0-9]{0,4})?' +
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// Path.
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'(?:/(?:(?![/ \u00A0]|[,.)}"\u0027!]+[ \u00A0]|[,.)}"\u0027!]+$).)*)*|') +
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// In addition, support e-mail address. Optionally, recognize "mailto:"
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'(?:mailto:)' + (linkifyURLs <= 1 ? '' : '?') +
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// Username:
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'[-_.+a-zA-Z0-9]+@' +
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// Hostname.
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'(?!-)[-a-zA-Z0-9]+(?:[.](?!-)[-a-zA-Z0-9]+)?[.]' +
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'(?:(?:com|net|org|edu|gov|aero|asia|biz|cat|coop|info|int|jobs|mil|mobi|'+
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'museum|name|pro|tel|travel|ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|' +
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'au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|' +
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'ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cu|cv|cx|cy|cz|de|dj|dk|dm|do|' +
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'dz|ec|ee|eg|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|' +
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'gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|' +
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'ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|' +
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'lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|' +
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'mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|' +
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'pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|' +
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'sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tl|tm|tn|to|' +
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'tp|tr|tt|tv|tw|tz|ua|ug|uk|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|' +
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'yu|za|zm|zw|arpa)(?![a-zA-Z0-9])|[Xx][Nn]--[-a-zA-Z0-9]+)' +
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// Optional arguments
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'(?:[?](?:(?![ \u00A0]|[,.)}"\u0027!]+[ \u00A0]|[,.)}"\u0027!]+$).)*)?');
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}
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this.getUserSettings();
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this.initializeElements(container);
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this.maxScrollbackLines = 500;
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this.npar = 0;
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this.par = [ ];
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this.isQuestionMark = false;
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this.savedX = [ ];
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this.savedY = [ ];
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this.savedAttr = [ ];
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this.savedUseGMap = 0;
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this.savedGMap = [ this.Latin1Map, this.VT100GraphicsMap,
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this.CodePage437Map, this.DirectToFontMap ];
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this.savedValid = [ ];
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this.respondString = '';
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this.statusString = '';
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this.internalClipboard = undefined;
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this.reset(true);
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}
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VT100.prototype.reset = function(clearHistory) {
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this.isEsc = 0 /* ESnormal */;
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this.needWrap = false;
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this.autoWrapMode = true;
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this.dispCtrl = false;
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this.toggleMeta = false;
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this.insertMode = false;
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this.applKeyMode = false;
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this.cursorKeyMode = false;
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this.crLfMode = false;
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this.offsetMode = false;
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this.mouseReporting = false;
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this.printing = false;
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if (typeof this.printWin != 'undefined' &&
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this.printWin && !this.printWin.closed) {
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this.printWin.close();
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}
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this.printWin = null;
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this.utfEnabled = this.utfPreferred;
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this.utfCount = 0;
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this.utfChar = 0;
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this.color = 'ansi0 bgAnsi15';
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this.style = '';
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this.attr = 0x00F0 /* ATTR_DEFAULT */;
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this.useGMap = 0;
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this.GMap = [ this.Latin1Map,
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this.VT100GraphicsMap,
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this.CodePage437Map,
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this.DirectToFontMap ];
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this.translate = this.GMap[this.useGMap];
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this.top = 0;
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this.bottom = this.terminalHeight;
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this.lastCharacter = ' ';
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this.userTabStop = [ ];
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if (clearHistory) {
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for (var i = 0; i < 2; i++) {
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while (this.console[i].firstChild) {
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this.console[i].removeChild(this.console[i].firstChild);
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}
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}
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}
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this.enableAlternateScreen(false);
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this.gotoXY(0, 0);
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this.showCursor();
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this.isInverted = false;
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this.refreshInvertedState();
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this.clearRegion(0, 0, this.terminalWidth, this.terminalHeight,
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this.color, this.style);
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};
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VT100.prototype.addListener = function(elem, event, listener) {
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if (elem.addEventListener) {
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elem.addEventListener(event, listener, false);
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} else {
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elem.attachEvent('on' + event, listener);
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}
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};
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VT100.prototype.getUserSettings = function() {
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// Compute hash signature to identify the entries in the userCSS menu.
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// If the menu is unchanged from last time, default values can be
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// looked up in a cookie associated with this page.
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this.signature = 1;
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this.utfPreferred = true;
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this.visualBell = typeof suppressAllAudio != 'undefined' &&
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suppressAllAudio;
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this.autoprint = true;
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if (this.visualBell) {
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this.signature = Math.floor(16807*this.signature + 1) %
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((1 << 31) - 1);
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}
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if (typeof userCSSList != 'undefined') {
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for (var i = 0; i < userCSSList.length; ++i) {
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var label = userCSSList[i][0];
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for (var j = 0; j < label.length; ++j) {
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this.signature = Math.floor(16807*this.signature+
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label.charCodeAt(j)) %
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((1 << 31) - 1);
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}
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if (userCSSList[i][1]) {
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this.signature = Math.floor(16807*this.signature + 1) %
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((1 << 31) - 1);
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}
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}
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}
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var key = 'shellInABox=' + this.signature + ':';
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var settings = document.cookie.indexOf(key);
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if (settings >= 0) {
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settings = document.cookie.substr(settings + key.length).
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replace(/([0-1]*).*/, "$1");
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if (settings.length == 3 + (typeof userCSSList == 'undefined' ?
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0 : userCSSList.length)) {
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this.utfPreferred = settings.charAt(0) != '0';
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this.visualBell = settings.charAt(1) != '0';
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this.autoprint = settings.charAt(2) != '0';
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if (typeof userCSSList != 'undefined') {
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for (var i = 0; i < userCSSList.length; ++i) {
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userCSSList[i][2] = settings.charAt(i + 3) != '0';
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}
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}
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}
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}
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this.utfEnabled = this.utfPreferred;
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};
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VT100.prototype.storeUserSettings = function() {
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var settings = 'shellInABox=' + this.signature + ':' +
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(this.utfEnabled ? '1' : '0') +
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(this.visualBell ? '1' : '0') +
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(this.autoprint ? '1' : '0');
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if (typeof userCSSList != 'undefined') {
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for (var i = 0; i < userCSSList.length; ++i) {
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settings += userCSSList[i][2] ? '1' : '0';
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}
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}
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var d = new Date();
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d.setDate(d.getDate() + 3653);
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document.cookie = settings + ';expires=' + d.toGMTString();
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};
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VT100.prototype.initializeUserCSSStyles = function() {
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this.usercssActions = [];
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if (typeof userCSSList != 'undefined') {
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var menu = '';
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var group = '';
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var wasSingleSel = 1;
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var beginOfGroup = 0;
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for (var i = 0; i <= userCSSList.length; ++i) {
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if (i < userCSSList.length) {
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var label = userCSSList[i][0];
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var newGroup = userCSSList[i][1];
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var enabled = userCSSList[i][2];
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// Add user style sheet to document
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var style = document.createElement('link');
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var id = document.createAttribute('id');
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id.nodeValue = 'usercss-' + i;
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style.setAttributeNode(id);
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var rel = document.createAttribute('rel');
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rel.nodeValue = 'stylesheet';
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style.setAttributeNode(rel);
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var href = document.createAttribute('href');
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href.nodeValue = 'usercss-' + i + '.css';
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style.setAttributeNode(href);
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var type = document.createAttribute('type');
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type.nodeValue = 'text/css';
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style.setAttributeNode(type);
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document.getElementsByTagName('head')[0].appendChild(style);
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style.disabled = !enabled;
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}
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// Add entry to menu
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if (newGroup || i == userCSSList.length) {
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if (beginOfGroup != 0 && (i - beginOfGroup > 1 || !wasSingleSel)) {
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// The last group had multiple entries that are mutually exclusive;
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// or the previous to last group did. In either case, we need to
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// append a "<hr />" before we can add the last group to the menu.
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menu += '<hr />';
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}
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wasSingleSel = i - beginOfGroup < 1;
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menu += group;
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group = '';
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for (var j = beginOfGroup; j < i; ++j) {
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this.usercssActions[this.usercssActions.length] =
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function(vt100, current, begin, count) {
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// Deselect all other entries in the group, then either select
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// (for multiple entries in group) or toggle (for on/off entry)
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// the current entry.
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return function() {
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var entry = vt100.getChildById(vt100.menu,
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'beginusercss');
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var i = -1;
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var j = -1;
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for (var c = count; c > 0; ++j) {
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if (entry.tagName == 'LI') {
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if (++i >= begin) {
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--c;
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var label = vt100.usercss.childNodes[j];
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// Restore label to just the text content
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if (typeof label.textContent == 'undefined') {
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var s = label.innerText;
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label.innerHTML = '';
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label.appendChild(document.createTextNode(s));
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} else {
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label.textContent= label.textContent;
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}
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// User style sheets are number sequentially
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var sheet = document.getElementById(
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'usercss-' + i);
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if (i == current) {
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if (count == 1) {
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sheet.disabled = !sheet.disabled;
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} else {
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sheet.disabled = false;
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}
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if (!sheet.disabled) {
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label.innerHTML= '<img src="enabled.gif" />' +
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label.innerHTML;
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}
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} else {
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sheet.disabled = true;
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}
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userCSSList[i][2] = !sheet.disabled;
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}
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}
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entry = entry.nextSibling;
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}
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};
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}(this, j, beginOfGroup, i - beginOfGroup);
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}
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if (i == userCSSList.length) {
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break;
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}
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beginOfGroup = i;
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}
|
|
// 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.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, '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="scrollable">' +
|
|
'<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 />') +
|
|
'</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.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){}
|
|
}
|
|
|
|
// 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.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.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() {
|
|
// 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.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.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.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 offsetX = this.container.offsetLeft;
|
|
var offsetY = this.container.offsetTop;
|
|
for (var e = this.container; e = e.offsetParent; ) {
|
|
offsetX += e.offsetLeft;
|
|
offsetY += e.offsetTop;
|
|
}
|
|
var x = (event.clientX - offsetX) / this.cursorWidth;
|
|
var y = ((event.clientY - offsetY) + this.scrollable.offsetTop) /
|
|
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(event.clientX - offsetX, event.clientY - offsetY);
|
|
}
|
|
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.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;
|
|
}
|
|
|
|
// 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.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);
|
|
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)) + 'px';
|
|
} else {
|
|
this.setTextContent(this.space, this.spaces(this.cursorX));
|
|
this.cursor.style.left = this.space.offsetWidth +
|
|
console.offsetLeft + '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 = '';
|
|
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.about = function() {
|
|
alert("VT100 Terminal Emulator " + "2.9 (revision 183)" +
|
|
"\nCopyright 2008-2009 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 id="endconfig">' +
|
|
(this.visualBell ? '<img src="enabled.gif" />' : '') +
|
|
'Visual Bell</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 ];
|
|
|
|
// 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
|
|
if (x + popup.clientWidth > this.container.offsetWidth) {
|
|
x = this.container.offsetWidth - popup.clientWidth;
|
|
}
|
|
if (x < 0) {
|
|
x = 0;
|
|
}
|
|
if (y + popup.clientHeight > this.container.offsetHeight) {
|
|
y = this.container.offsetHeight-popup.clientHeight;
|
|
}
|
|
if (y < 0) {
|
|
y = 0;
|
|
}
|
|
popup.style.left = x + 'px';
|
|
popup.style.top = y + 'px';
|
|
|
|
// Block all other interactions with the terminal emulator
|
|
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';
|
|
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 <= 222 ||
|
|
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 <= 222 ||
|
|
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 {
|
|
this.cursor.className = this.cursor.className == 'bright'
|
|
? 'dim' : '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;
|
|
}
|
|
if (this.attr & 0x1000 /* ATTR_BLINK */) {
|
|
bg ^= 8;
|
|
}
|
|
// Make some readability enhancements. Most notably, disallow identical
|
|
// background and foreground colors.
|
|
if (bg == fg) {
|
|
if ((fg ^= 8) == 7) {
|
|
fg = 8;
|
|
}
|
|
}
|
|
// And disallow bright colors on a light-grey background.
|
|
if (bg == 7 && fg >= 8) {
|
|
if ((fg -= 8) == 7) {
|
|
fg = 8;
|
|
}
|
|
}
|
|
|
|
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.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: /* Toggling between 80/132 mode is not implemented */ 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 /* ESstatus */) {
|
|
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.statusString = ''; this.isEsc = 17 /* ESstatus */; 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 /* ESstatus */:
|
|
if (ch == 0x07) {
|
|
if (this.statusString && this.statusString.charAt(0) == ';') {
|
|
this.statusString = this.statusString.substr(1);
|
|
}
|
|
try {
|
|
window.status = this.statusString;
|
|
} catch (e) {
|
|
}
|
|
this.isEsc = 0 /* ESnormal */;
|
|
} else {
|
|
this.statusString += 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
|
|
];
|
|
|