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7460295f | 1 | // VT100.js -- JavaScript based terminal emulator |
e0bb8a33 | 2 | // Copyright (C) 2008-2009 Markus Gutschke <markus@shellinabox.com> |
7460295f MG |
3 | // |
4 | // This program is free software; you can redistribute it and/or modify | |
5 | // it under the terms of the GNU General Public License version 2 as | |
6 | // published by the Free Software Foundation. | |
7 | // | |
8 | // This program is distributed in the hope that it will be useful, | |
9 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | // GNU General Public License for more details. | |
12 | // | |
13 | // You should have received a copy of the GNU General Public License along | |
14 | // with this program; if not, write to the Free Software Foundation, Inc., | |
15 | // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
16 | // | |
17 | // In addition to these license terms, the author grants the following | |
18 | // additional rights: | |
19 | // | |
20 | // If you modify this program, or any covered work, by linking or | |
21 | // combining it with the OpenSSL project's OpenSSL library (or a | |
22 | // modified version of that library), containing parts covered by the | |
23 | // terms of the OpenSSL or SSLeay licenses, the author | |
24 | // grants you additional permission to convey the resulting work. | |
25 | // Corresponding Source for a non-source form of such a combination | |
26 | // shall include the source code for the parts of OpenSSL used as well | |
27 | // as that of the covered work. | |
28 | // | |
29 | // You may at your option choose to remove this additional permission from | |
30 | // the work, or from any part of it. | |
31 | // | |
32 | // It is possible to build this program in a way that it loads OpenSSL | |
33 | // libraries at run-time. If doing so, the following notices are required | |
34 | // by the OpenSSL and SSLeay licenses: | |
35 | // | |
36 | // This product includes software developed by the OpenSSL Project | |
37 | // for use in the OpenSSL Toolkit. (http://www.openssl.org/) | |
38 | // | |
39 | // This product includes cryptographic software written by Eric Young | |
40 | // (eay@cryptsoft.com) | |
41 | // | |
42 | // | |
43 | // The most up-to-date version of this program is always available from | |
44 | // http://shellinabox.com | |
45 | // | |
46 | // | |
47 | // Notes: | |
48 | // | |
49 | // The author believes that for the purposes of this license, you meet the | |
50 | // requirements for publishing the source code, if your web server publishes | |
51 | // the source in unmodified form (i.e. with licensing information, comments, | |
52 | // formatting, and identifier names intact). If there are technical reasons | |
53 | // that require you to make changes to the source code when serving the | |
54 | // JavaScript (e.g to remove pre-processor directives from the source), these | |
55 | // changes should be done in a reversible fashion. | |
56 | // | |
57 | // The author does not consider websites that reference this script in | |
58 | // unmodified form, and web servers that serve this script in unmodified form | |
59 | // to be derived works. As such, they are believed to be outside of the | |
60 | // scope of this license and not subject to the rights or restrictions of the | |
61 | // GNU General Public License. | |
62 | // | |
63 | // If in doubt, consult a legal professional familiar with the laws that | |
64 | // apply in your country. | |
65 | ||
c27d0db9 MG |
66 | // #define ESnormal 0 |
67 | // #define ESesc 1 | |
68 | // #define ESsquare 2 | |
69 | // #define ESgetpars 3 | |
70 | // #define ESgotpars 4 | |
71 | // #define ESdeviceattr 5 | |
72 | // #define ESfunckey 6 | |
73 | // #define EShash 7 | |
74 | // #define ESsetG0 8 | |
75 | // #define ESsetG1 9 | |
76 | // #define ESsetG2 10 | |
77 | // #define ESsetG3 11 | |
78 | // #define ESbang 12 | |
79 | // #define ESpercent 13 | |
80 | // #define ESignore 14 | |
81 | // #define ESnonstd 15 | |
82 | // #define ESpalette 16 | |
83 | // #define ESstatus 17 | |
84 | // #define ESss2 18 | |
85 | // #define ESss3 19 | |
86 | ||
87 | // #define ATTR_DEFAULT 0x00F0 | |
88 | // #define ATTR_REVERSE 0x0100 | |
89 | // #define ATTR_UNDERLINE 0x0200 | |
90 | // #define ATTR_DIM 0x0400 | |
91 | // #define ATTR_BRIGHT 0x0800 | |
92 | // #define ATTR_BLINK 0x1000 | |
93 | ||
94 | // #define MOUSE_DOWN 0 | |
95 | // #define MOUSE_UP 1 | |
96 | // #define MOUSE_CLICK 2 | |
7460295f MG |
97 | |
98 | function VT100(container) { | |
f4f914a4 | 99 | if (typeof linkifyURLs == 'undefined' || linkifyURLs <= 0) { |
f0c6fd39 MG |
100 | this.urlRE = null; |
101 | } else { | |
102 | this.urlRE = new RegExp( | |
103 | // Known URL protocol are "http", "https", and "ftp". | |
104 | '(?:http|https|ftp)://' + | |
105 | ||
106 | // Optionally allow username and passwords. | |
ce0cf224 | 107 | '(?:[^:@/ \u00A0]*(?::[^@/ \u00A0]*)?@)?' + |
f0c6fd39 MG |
108 | |
109 | // Hostname. | |
110 | '(?:[1-9][0-9]{0,2}(?:[.][1-9][0-9]{0,2}){3}|' + | |
111 | '[0-9a-fA-F]{0,4}(?::{1,2}[0-9a-fA-F]{1,4})+|' + | |
a7164199 | 112 | '(?!-)[^[!"#$%&\'()*+,/:;<=>?@\\^_`{|}~\u0000- \u007F-\u00A0]+)' + |
f0c6fd39 MG |
113 | |
114 | // Port | |
115 | '(?::[1-9][0-9]*)?' + | |
116 | ||
117 | // Path. | |
4ad8e70f | 118 | '(?:/(?:(?![/ \u00A0]|[,.)}"\u0027!]+[ \u00A0]|[,.)}"\u0027!]+$).)*)*|' + |
f0c6fd39 MG |
119 | |
120 | (linkifyURLs <= 1 ? '' : | |
121 | // Also support URLs without a protocol (assume "http"). | |
122 | // Optional username and password. | |
ce0cf224 | 123 | '(?:[^:@/ \u00A0]*(?::[^@/ \u00A0]*)?@)?' + |
f0c6fd39 MG |
124 | |
125 | // Hostnames must end with a well-known top-level domain or must be | |
126 | // numeric. | |
127 | '(?:[1-9][0-9]{0,2}(?:[.][1-9][0-9]{0,2}){3}|' + | |
128 | 'localhost|' + | |
a7164199 MG |
129 | '(?:(?!-)' + |
130 | '[^.[!"#$%&\'()*+,/:;<=>?@\\^_`{|}~\u0000- \u007F-\u00A0]+[.]){2,}' + | |
131 | '(?:(?:com|net|org|edu|gov|aero|asia|biz|cat|coop|info|int|jobs|mil|mobi|'+ | |
f0c6fd39 MG |
132 | 'museum|name|pro|tel|travel|ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|' + |
133 | 'au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|' + | |
134 | 'ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cu|cv|cx|cy|cz|de|dj|dk|dm|do|' + | |
135 | 'dz|ec|ee|eg|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|' + | |
136 | 'gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|' + | |
137 | 'ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|' + | |
138 | 'lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|' + | |
139 | 'mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|' + | |
140 | 'pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|' + | |
141 | 'sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tl|tm|tn|to|' + | |
142 | 'tp|tr|tt|tv|tw|tz|ua|ug|uk|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|' + | |
a7164199 | 143 | 'yu|za|zm|zw|arpa)(?![a-zA-Z0-9])|[Xx][Nn]--[-a-zA-Z0-9]+))' + |
f0c6fd39 MG |
144 | |
145 | // Port | |
146 | '(?::[1-9][0-9]{0,4})?' + | |
147 | ||
148 | // Path. | |
4ad8e70f | 149 | '(?:/(?:(?![/ \u00A0]|[,.)}"\u0027!]+[ \u00A0]|[,.)}"\u0027!]+$).)*)*|') + |
f0c6fd39 MG |
150 | |
151 | // In addition, support e-mail address. Optionally, recognize "mailto:" | |
152 | '(?:mailto:)' + (linkifyURLs <= 1 ? '' : '?') + | |
153 | ||
154 | // Username: | |
155 | '[-_.+a-zA-Z0-9]+@' + | |
156 | ||
157 | // Hostname. | |
158 | '(?!-)[-a-zA-Z0-9]+(?:[.](?!-)[-a-zA-Z0-9]+)?[.]' + | |
a7164199 | 159 | '(?:(?:com|net|org|edu|gov|aero|asia|biz|cat|coop|info|int|jobs|mil|mobi|'+ |
f0c6fd39 MG |
160 | 'museum|name|pro|tel|travel|ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|' + |
161 | 'au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|' + | |
162 | 'ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cu|cv|cx|cy|cz|de|dj|dk|dm|do|' + | |
163 | 'dz|ec|ee|eg|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|' + | |
164 | 'gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|' + | |
165 | 'ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|' + | |
166 | 'lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|' + | |
167 | 'mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|' + | |
168 | 'pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|' + | |
169 | 'sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tl|tm|tn|to|' + | |
170 | 'tp|tr|tt|tv|tw|tz|ua|ug|uk|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|' + | |
a7164199 | 171 | 'yu|za|zm|zw|arpa)(?![a-zA-Z0-9])|[Xx][Nn]--[-a-zA-Z0-9]+)' + |
f0c6fd39 MG |
172 | |
173 | // Optional arguments | |
4ad8e70f | 174 | '(?:[?](?:(?![ \u00A0]|[,.)}"\u0027!]+[ \u00A0]|[,.)}"\u0027!]+$).)*)?'); |
f0c6fd39 | 175 | } |
7460295f MG |
176 | this.initializeElements(container); |
177 | this.initializeAnsiColors(); | |
178 | this.maxScrollbackLines = 500; | |
179 | this.npar = 0; | |
180 | this.par = [ ]; | |
181 | this.isQuestionMark = false; | |
182 | this.savedX = [ ]; | |
183 | this.savedY = [ ]; | |
184 | this.savedAttr = [ ]; | |
185 | this.savedUseGMap = 0; | |
186 | this.savedGMap = [ this.Latin1Map, this.VT100GraphicsMap, | |
187 | this.CodePage437Map, this.DirectToFontMap ]; | |
188 | this.savedValid = [ ]; | |
189 | this.respondString = ''; | |
190 | this.statusString = ''; | |
191 | this.internalClipboard = undefined; | |
192 | this.reset(true); | |
193 | } | |
194 | ||
195 | VT100.prototype.reset = function(clearHistory) { | |
c27d0db9 | 196 | this.isEsc = 0 /* ESnormal */; |
7460295f MG |
197 | this.needWrap = false; |
198 | this.autoWrapMode = true; | |
199 | this.dispCtrl = false; | |
200 | this.toggleMeta = false; | |
201 | this.insertMode = false; | |
202 | this.applKeyMode = false; | |
203 | this.cursorKeyMode = false; | |
204 | this.crLfMode = false; | |
205 | this.offsetMode = false; | |
206 | this.mouseReporting = false; | |
207 | this.utfEnabled = true; | |
b624088c MG |
208 | this.visualBell = typeof suppressAllAudio != |
209 | 'undefined' && | |
46f2036a | 210 | suppressAllAudio; |
7460295f MG |
211 | this.utfCount = 0; |
212 | this.utfChar = 0; | |
213 | this.style = ''; | |
c27d0db9 | 214 | this.attr = 0x00F0 /* ATTR_DEFAULT */; |
7460295f MG |
215 | this.useGMap = 0; |
216 | this.GMap = [ this.Latin1Map, | |
217 | this.VT100GraphicsMap, | |
218 | this.CodePage437Map, | |
219 | this.DirectToFontMap ]; | |
220 | this.translate = this.GMap[this.useGMap]; | |
221 | this.top = 0; | |
222 | this.bottom = this.terminalHeight; | |
223 | this.lastCharacter = ' '; | |
224 | this.userTabStop = [ ]; | |
225 | ||
226 | if (clearHistory) { | |
227 | for (var i = 0; i < 2; i++) { | |
228 | while (this.console[i].firstChild) { | |
229 | this.console[i].removeChild(this.console[i].firstChild); | |
230 | } | |
231 | } | |
232 | } | |
233 | ||
234 | this.enableAlternateScreen(false); | |
235 | this.gotoXY(0, 0); | |
236 | this.showCursor(); | |
237 | this.isInverted = false; | |
238 | this.refreshInvertedState(); | |
239 | this.clearRegion(0, 0, this.terminalWidth, this.terminalHeight, this.style); | |
240 | }; | |
241 | ||
242 | VT100.prototype.initializeAnsiColors = function() { | |
243 | var elem = document.createElement('pre'); | |
244 | this.container.appendChild(elem); | |
245 | this.setTextContent(elem, ' '); | |
246 | this.ansi = [ ]; | |
247 | for (var i = 0; i < 16; i++) { | |
248 | elem.id = 'ansi' + i; | |
249 | this.ansi[i] = this.getCurrentComputedStyle(elem, 'backgroundColor'); | |
250 | } | |
251 | this.container.removeChild(elem); | |
252 | }; | |
253 | ||
254 | VT100.prototype.addListener = function(elem, event, listener) { | |
255 | if (elem.addEventListener) { | |
256 | elem.addEventListener(event, listener, false); | |
257 | } else { | |
258 | elem.attachEvent('on' + event, listener); | |
259 | } | |
260 | }; | |
261 | ||
262 | VT100.prototype.initializeElements = function(container) { | |
263 | // If the necessary objects have not already been defined in the HTML | |
264 | // page, create them now. | |
265 | if (container) { | |
266 | this.container = container; | |
267 | } else if (!(this.container = document.getElementById('vt100'))) { | |
268 | this.container = document.createElement('div'); | |
269 | this.container.id = 'vt100'; | |
270 | document.body.appendChild(this.container); | |
271 | } | |
272 | ||
273 | if (!this.getChildById(this.container, 'reconnect') || | |
274 | !this.getChildById(this.container, 'menu') || | |
275 | !this.getChildById(this.container, 'scrollable') || | |
276 | !this.getChildById(this.container, 'console') || | |
277 | !this.getChildById(this.container, 'alt_console') || | |
bf57c5f9 | 278 | !this.getChildById(this.container, 'ieprobe') || |
7460295f MG |
279 | !this.getChildById(this.container, 'padding') || |
280 | !this.getChildById(this.container, 'cursor') || | |
281 | !this.getChildById(this.container, 'lineheight') || | |
79a640e0 | 282 | !this.getChildById(this.container, 'space') || |
7460295f MG |
283 | !this.getChildById(this.container, 'input') || |
284 | !this.getChildById(this.container, 'cliphelper') || | |
285 | !this.getChildById(this.container, 'attrib')) { | |
286 | // Only enable the "embed" object, if we have a suitable plugin. Otherwise, | |
287 | // we might get a pointless warning that a suitable plugin is not yet | |
288 | // installed. If in doubt, we'd rather just stay silent. | |
289 | var embed = ''; | |
290 | try { | |
291 | if (typeof navigator.mimeTypes["audio/x-wav"].enabledPlugin.name != | |
292 | 'undefined') { | |
b624088c MG |
293 | embed = typeof suppressAllAudio != 'undefined' && |
294 | suppressAllAudio ? "" : | |
7460295f | 295 | '<embed classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" ' + |
46f2036a MG |
296 | 'id="beep_embed" ' + |
297 | 'src="beep.wav" ' + | |
298 | 'autostart="false" ' + | |
299 | 'volume="100" ' + | |
300 | 'enablejavascript="true" ' + | |
301 | 'type="audio/x-wav" ' + | |
302 | 'height="16" ' + | |
303 | 'width="200" ' + | |
304 | 'style="position:absolute;left:-1000px;top:-1000px" />'; | |
7460295f MG |
305 | } |
306 | } catch (e) { | |
307 | } | |
30046882 | 308 | |
7460295f MG |
309 | this.container.innerHTML = |
310 | '<div id="reconnect" style="visibility: hidden">' + | |
d1edcc0e MG |
311 | '<input type="button" value="Connect" ' + |
312 | 'onsubmit="return false" />' + | |
7460295f | 313 | '</div>' + |
a7164199 MG |
314 | '<div id="cursize" style="visibility: hidden">' + |
315 | '</div>' + | |
7460295f MG |
316 | '<div id="menu"></div>' + |
317 | '<div id="scrollable">' + | |
38d64ad8 | 318 | '<pre id="lineheight"> </pre>' + |
bf57c5f9 MG |
319 | '<pre id="console">' + |
320 | '<pre></pre>' + | |
321 | '<div id="ieprobe"><span> </span></div>' + | |
322 | '</pre>' + | |
7460295f MG |
323 | '<pre id="alt_console" style="display: none"></pre>' + |
324 | '<div id="padding"></div>' + | |
bf57c5f9 | 325 | '<pre id="cursor"> </pre>' + |
7460295f MG |
326 | '</div>' + |
327 | '<div class="hidden">' + | |
79a640e0 | 328 | '<pre><div><span id="space"></span></div></pre>' + |
7460295f MG |
329 | '<input type="textfield" id="input" />' + |
330 | '<input type="textfield" id="cliphelper" />' + | |
331 | '<span id="attrib"> </span>' + | |
b624088c MG |
332 | (typeof suppressAllAudio != 'undefined' && |
333 | suppressAllAudio ? "" : | |
46f2036a | 334 | embed + '<bgsound id="beep_bgsound" loop=1 />') + |
7460295f MG |
335 | '</div>'; |
336 | } | |
337 | ||
338 | // Find the object used for playing the "beep" sound, if any. | |
46f2036a MG |
339 | if (typeof suppressAllAudio != 'undefined' && suppressAllAudio) { |
340 | this.beeper = undefined; | |
341 | } else { | |
7460295f | 342 | this.beeper = this.getChildById(this.container, |
46f2036a MG |
343 | 'beep_embed'); |
344 | if (!this.beeper || !this.beeper.Play) { | |
345 | this.beeper = this.getChildById(this.container, | |
7460295f | 346 | 'beep_bgsound'); |
46f2036a MG |
347 | if (!this.beeper || typeof this.beeper.src == 'undefined') { |
348 | this.beeper = undefined; | |
349 | } | |
7460295f MG |
350 | } |
351 | } | |
352 | ||
353 | // Initialize the variables for finding the text console and the | |
354 | // cursor. | |
355 | this.reconnectBtn = this.getChildById(this.container,'reconnect'); | |
a7164199 | 356 | this.curSizeBox = this.getChildById(this.container, 'cursize'); |
7460295f MG |
357 | this.menu = this.getChildById(this.container, 'menu'); |
358 | this.scrollable = this.getChildById(this.container, | |
359 | 'scrollable'); | |
79a640e0 MG |
360 | this.lineheight = this.getChildById(this.container, |
361 | 'lineheight'); | |
7460295f MG |
362 | this.console = |
363 | [ this.getChildById(this.container, 'console'), | |
364 | this.getChildById(this.container, 'alt_console') ]; | |
bf57c5f9 | 365 | var ieProbe = this.getChildById(this.container, 'ieprobe'); |
7460295f | 366 | this.padding = this.getChildById(this.container, 'padding'); |
79a640e0 MG |
367 | this.cursor = this.getChildById(this.container, 'cursor'); |
368 | this.space = this.getChildById(this.container, 'space'); | |
7460295f MG |
369 | this.input = this.getChildById(this.container, 'input'); |
370 | this.cliphelper = this.getChildById(this.container, | |
371 | 'cliphelper'); | |
372 | this.attributeHelper = this.getChildById(this.container, 'attrib'); | |
373 | ||
374 | // Remember the dimensions of a standard character glyph. We would | |
375 | // expect that we could just check cursor.clientWidth/Height at any time, | |
376 | // but it turns out that browsers sometimes invalidate these values | |
377 | // (e.g. while displaying a print preview screen). | |
378 | this.cursorWidth = this.cursor.clientWidth; | |
bf57c5f9 MG |
379 | this.cursorHeight = this.lineheight.clientHeight; |
380 | ||
381 | // IE has a slightly different boxing model, that we need to compensate for | |
382 | this.isIE = ieProbe.offsetTop > 1; | |
383 | ieProbe = undefined; | |
384 | this.console.innerHTML = ''; | |
7460295f MG |
385 | |
386 | // Determine if the terminal window is positioned at the beginning of the | |
387 | // page, or if it is embedded somewhere else in the page. For full-screen | |
388 | // terminals, automatically resize whenever the browser window changes. | |
389 | var marginTop = parseInt(this.getCurrentComputedStyle( | |
390 | document.body, 'marginTop')); | |
391 | var marginLeft = parseInt(this.getCurrentComputedStyle( | |
392 | document.body, 'marginLeft')); | |
393 | var marginRight = parseInt(this.getCurrentComputedStyle( | |
394 | document.body, 'marginRight')); | |
395 | var x = this.container.offsetLeft; | |
396 | var y = this.container.offsetTop; | |
397 | for (var parent = this.container; parent = parent.offsetParent; ) { | |
398 | x += parent.offsetLeft; | |
399 | y += parent.offsetTop; | |
400 | } | |
401 | this.isEmbedded = marginTop != y || | |
402 | marginLeft != x || | |
403 | (window.innerWidth || | |
30046882 MG |
404 | document.documentElement.clientWidth || |
405 | document.body.clientWidth) - | |
7460295f MG |
406 | marginRight != x + this.container.offsetWidth; |
407 | if (!this.isEmbedded) { | |
a7164199 MG |
408 | // Some browsers generate resize events when the terminal is first |
409 | // shown. Disable showing the size indicator until a little bit after | |
410 | // the terminal has been rendered the first time. | |
411 | this.indicateSize = false; | |
412 | setTimeout(function(vt100) { | |
413 | return function() { | |
414 | vt100.indicateSize = true; | |
415 | }; | |
416 | }(this), 100); | |
7460295f MG |
417 | this.addListener(window, 'resize', |
418 | function(vt100) { | |
419 | return function() { | |
420 | vt100.hideContextMenu(); | |
421 | vt100.resizer(); | |
a7164199 | 422 | vt100.showCurrentSize(); |
7460295f MG |
423 | } |
424 | }(this)); | |
425 | ||
426 | // Hide extra scrollbars attached to window | |
427 | document.body.style.margin = '0px'; | |
428 | try { document.body.style.overflow ='hidden'; } catch (e) { } | |
429 | try { document.body.oncontextmenu = function() {return false;};} catch(e){} | |
430 | } | |
431 | ||
432 | // Hide context menu | |
433 | this.hideContextMenu(); | |
434 | ||
435 | // Add listener to reconnect button | |
436 | this.addListener(this.reconnectBtn.firstChild, 'click', | |
437 | function(vt100) { | |
438 | return function() { | |
d1edcc0e | 439 | var rc = vt100.reconnect(); |
7460295f | 440 | vt100.input.focus(); |
d1edcc0e | 441 | return rc; |
7460295f MG |
442 | } |
443 | }(this)); | |
444 | ||
445 | // Add input listeners | |
446 | this.addListener(this.input, 'blur', | |
447 | function(vt100) { | |
448 | return function() { vt100.blurCursor(); } }(this)); | |
449 | this.addListener(this.input, 'focus', | |
450 | function(vt100) { | |
451 | return function() { vt100.focusCursor(); } }(this)); | |
452 | this.addListener(this.input, 'keydown', | |
453 | function(vt100) { | |
454 | return function(e) { | |
455 | if (!e) e = window.event; | |
456 | return vt100.keyDown(e); } }(this)); | |
457 | this.addListener(this.input, 'keypress', | |
458 | function(vt100) { | |
459 | return function(e) { | |
460 | if (!e) e = window.event; | |
461 | return vt100.keyPressed(e); } }(this)); | |
462 | this.addListener(this.input, 'keyup', | |
463 | function(vt100) { | |
464 | return function(e) { | |
465 | if (!e) e = window.event; | |
466 | return vt100.keyUp(e); } }(this)); | |
467 | ||
468 | // Attach listeners that move the focus to the <input> field. This way we | |
469 | // can make sure that we can receive keyboard input. | |
470 | var mouseEvent = function(vt100, type) { | |
471 | return function(e) { | |
472 | if (!e) e = window.event; | |
473 | return vt100.mouseEvent(e, type); | |
474 | }; | |
475 | }; | |
c27d0db9 MG |
476 | this.addListener(this.scrollable,'mousedown',mouseEvent(this, 0 /* MOUSE_DOWN */)); |
477 | this.addListener(this.scrollable,'mouseup', mouseEvent(this, 1 /* MOUSE_UP */)); | |
478 | this.addListener(this.scrollable,'click', mouseEvent(this, 2 /* MOUSE_CLICK */)); | |
7460295f MG |
479 | |
480 | // Initialize the blank terminal window. | |
481 | this.currentScreen = 0; | |
482 | this.cursorX = 0; | |
483 | this.cursorY = 0; | |
484 | this.numScrollbackLines = 0; | |
485 | this.top = 0; | |
486 | this.bottom = 0x7FFFFFFF; | |
487 | this.resizer(); | |
488 | this.focusCursor(); | |
489 | this.input.focus(); | |
490 | }; | |
491 | ||
492 | VT100.prototype.getChildById = function(parent, id) { | |
493 | var nodeList = parent.all || parent.getElementsByTagName('*'); | |
494 | if (typeof nodeList.namedItem == 'undefined') { | |
495 | for (var i = 0; i < nodeList.length; i++) { | |
496 | if (nodeList[i].id == id) { | |
497 | return nodeList[i]; | |
498 | } | |
499 | } | |
500 | return null; | |
501 | } else { | |
502 | var elem = (parent.all || parent.getElementsByTagName('*')).namedItem(id); | |
503 | return elem ? elem[0] || elem : null; | |
504 | } | |
505 | }; | |
506 | ||
507 | VT100.prototype.getCurrentComputedStyle = function(elem, style) { | |
508 | if (typeof elem.currentStyle != 'undefined') { | |
509 | return elem.currentStyle[style]; | |
510 | } else { | |
511 | return document.defaultView.getComputedStyle(elem, null)[style]; | |
512 | } | |
513 | }; | |
514 | ||
515 | VT100.prototype.reconnect = function() { | |
d1edcc0e | 516 | return false; |
7460295f MG |
517 | }; |
518 | ||
519 | VT100.prototype.showReconnect = function(state) { | |
520 | if (state) { | |
521 | this.reconnectBtn.style.visibility = ''; | |
522 | } else { | |
523 | this.reconnectBtn.style.visibility = 'hidden'; | |
524 | } | |
525 | }; | |
526 | ||
527 | VT100.prototype.repairElements = function(console) { | |
528 | for (var line = console.firstChild; line; line = line.nextSibling) { | |
529 | if (!line.clientHeight) { | |
530 | var newLine = document.createElement(line.tagName); | |
531 | newLine.style.cssText = line.style.cssText; | |
532 | newLine.className = line.className; | |
533 | if (line.tagName == 'DIV') { | |
534 | for (var span = line.firstChild; span; span = span.nextSibling) { | |
535 | var newSpan = document.createElement(span.tagName); | |
536 | newSpan.style.cssText = span.style.cssText; | |
537 | this.setTextContent(newSpan, this.getTextContent(span)); | |
538 | newLine.appendChild(newSpan); | |
539 | } | |
540 | } else { | |
541 | this.setTextContent(newLine, this.getTextContent(line)); | |
542 | } | |
543 | line.parentNode.replaceChild(newLine, line); | |
544 | line = newLine; | |
545 | } | |
546 | } | |
547 | }; | |
548 | ||
549 | VT100.prototype.resized = function(w, h) { | |
550 | }; | |
551 | ||
552 | VT100.prototype.resizer = function() { | |
553 | // The cursor can get corrupted if the print-preview is displayed in Firefox. | |
554 | // Recreating it, will repair it. | |
555 | var newCursor = document.createElement('pre'); | |
556 | this.setTextContent(newCursor, ' '); | |
557 | newCursor.id = 'cursor'; | |
558 | newCursor.style.cssText = this.cursor.style.cssText; | |
559 | this.cursor.parentNode.insertBefore(newCursor, this.cursor); | |
560 | if (!newCursor.clientHeight) { | |
561 | // Things are broken right now. This is probably because we are | |
562 | // displaying the print-preview. Just don't change any of our settings | |
563 | // until the print dialog is closed again. | |
564 | newCursor.parentNode.removeChild(newCursor); | |
565 | return; | |
566 | } else { | |
567 | // Swap the old broken cursor for the newly created one. | |
568 | this.cursor.parentNode.removeChild(this.cursor); | |
569 | this.cursor = newCursor; | |
570 | } | |
571 | ||
572 | // Really horrible things happen if the contents of the terminal changes | |
573 | // while the print-preview is showing. We get HTML elements that show up | |
574 | // in the DOM, but that do not take up any space. Find these elements and | |
575 | // try to fix them. | |
576 | this.repairElements(this.console[0]); | |
577 | this.repairElements(this.console[1]); | |
578 | ||
579 | // Lock the cursor size to the size of a normal character. This helps with | |
580 | // characters that are taller/shorter than normal. Unfortunately, we will | |
581 | // still get confused if somebody enters a character that is wider/narrower | |
582 | // than normal. This can happen if the browser tries to substitute a | |
583 | // characters from a different font. | |
584 | this.cursor.style.width = this.cursorWidth + 'px'; | |
585 | this.cursor.style.height = this.cursorHeight + 'px'; | |
586 | ||
587 | // Adjust height for one pixel padding of the #vt100 element. | |
588 | // The latter is necessary to properly display the inactive cursor. | |
589 | var console = this.console[this.currentScreen]; | |
590 | var height = (this.isEmbedded ? this.container.clientHeight | |
591 | : (window.innerHeight || | |
30046882 MG |
592 | document.documentElement.clientHeight || |
593 | document.body.clientHeight))-1; | |
7460295f | 594 | var partial = height % this.cursorHeight; |
30046882 MG |
595 | this.scrollable.style.height = (height > 0 ? height : 0) + 'px'; |
596 | this.padding.style.height = (partial > 0 ? partial : 0) + 'px'; | |
7460295f MG |
597 | var oldTerminalHeight = this.terminalHeight; |
598 | this.updateWidth(); | |
599 | this.updateHeight(); | |
30046882 | 600 | |
7460295f MG |
601 | // Clip the cursor to the visible screen. |
602 | var cx = this.cursorX; | |
603 | var cy = this.cursorY + this.numScrollbackLines; | |
604 | ||
605 | // The alternate screen never keeps a scroll back buffer. | |
606 | this.updateNumScrollbackLines(); | |
607 | while (this.currentScreen && this.numScrollbackLines > 0) { | |
608 | console.removeChild(console.firstChild); | |
609 | this.numScrollbackLines--; | |
610 | } | |
611 | cy -= this.numScrollbackLines; | |
612 | if (cx < 0) { | |
613 | cx = 0; | |
614 | } else if (cx > this.terminalWidth) { | |
615 | cx = this.terminalWidth - 1; | |
616 | if (cx < 0) { | |
617 | cx = 0; | |
618 | } | |
619 | } | |
620 | if (cy < 0) { | |
621 | cy = 0; | |
622 | } else if (cy > this.terminalHeight) { | |
623 | cy = this.terminalHeight - 1; | |
624 | if (cy < 0) { | |
625 | cy = 0; | |
626 | } | |
627 | } | |
a7164199 | 628 | |
7460295f MG |
629 | // Clip the scroll region to the visible screen. |
630 | if (this.bottom > this.terminalHeight || | |
631 | this.bottom == oldTerminalHeight) { | |
632 | this.bottom = this.terminalHeight; | |
633 | } | |
634 | if (this.top >= this.bottom) { | |
635 | this.top = this.bottom-1; | |
636 | if (this.top < 0) { | |
637 | this.top = 0; | |
638 | } | |
639 | } | |
a7164199 | 640 | |
7460295f MG |
641 | // Truncate lines, if necessary. Explicitly reposition cursor (this is |
642 | // particularly important after changing the screen number), and reset | |
643 | // the scroll region to the default. | |
644 | this.truncateLines(this.terminalWidth); | |
645 | this.putString(cx, cy, '', undefined); | |
646 | this.scrollable.scrollTop = this.numScrollbackLines * | |
647 | this.cursorHeight + 1; | |
648 | ||
649 | // Update classNames for lines in the scrollback buffer | |
650 | var line = console.firstChild; | |
651 | for (var i = 0; i < this.numScrollbackLines; i++) { | |
652 | line.className = 'scrollback'; | |
653 | line = line.nextSibling; | |
654 | } | |
655 | while (line) { | |
656 | line.className = ''; | |
657 | line = line.nextSibling; | |
658 | } | |
659 | ||
660 | // Reposition the reconnect button | |
661 | this.reconnectBtn.style.left = (this.terminalWidth*this.cursorWidth - | |
662 | this.reconnectBtn.clientWidth)/2 + 'px'; | |
663 | this.reconnectBtn.style.top = (this.terminalHeight*this.cursorHeight- | |
664 | this.reconnectBtn.clientHeight)/2 + 'px'; | |
665 | ||
666 | // Send notification that the window size has been changed | |
667 | this.resized(this.terminalWidth, this.terminalHeight); | |
668 | }; | |
669 | ||
a7164199 MG |
670 | VT100.prototype.showCurrentSize = function() { |
671 | if (!this.indicateSize) { | |
672 | return; | |
673 | } | |
674 | this.curSizeBox.innerHTML = '' + this.terminalWidth + 'x' + | |
675 | this.terminalHeight; | |
676 | this.curSizeBox.style.left = | |
677 | (this.terminalWidth*this.cursorWidth - | |
678 | this.curSizeBox.clientWidth)/2 + 'px'; | |
679 | this.curSizeBox.style.top = | |
680 | (this.terminalHeight*this.cursorHeight - | |
681 | this.curSizeBox.clientHeight)/2 + 'px'; | |
682 | this.curSizeBox.style.visibility = ''; | |
683 | if (this.curSizeTimeout) { | |
684 | clearTimeout(this.curSizeTimeout); | |
685 | } | |
686 | ||
687 | // Only show the terminal size for a short amount of time after resizing. | |
688 | // Then hide this information, again. Some browsers generate resize events | |
689 | // throughout the entire resize operation. This is nice, and we will show | |
690 | // the terminal size while the user is dragging the window borders. | |
691 | // Other browsers only generate a single event when the user releases the | |
692 | // mouse. In those cases, we can only show the terminal size once at the | |
693 | // end of the resize operation. | |
694 | this.curSizeTimeout = setTimeout(function(vt100) { | |
695 | return function() { | |
696 | vt100.curSizeTimeout = null; | |
697 | vt100.curSizeBox.style.visibility = 'hidden'; | |
698 | }; | |
699 | }(this), 1000); | |
700 | }; | |
701 | ||
7460295f MG |
702 | VT100.prototype.selection = function() { |
703 | try { | |
704 | return '' + (window.getSelection && window.getSelection() || | |
705 | document.selection && document.selection.type == 'Text' && | |
706 | document.selection.createRange().text || ''); | |
707 | } catch (e) { | |
708 | } | |
709 | return ''; | |
710 | }; | |
711 | ||
712 | VT100.prototype.cancelEvent = function(event) { | |
713 | try { | |
714 | // For non-IE browsers | |
715 | event.stopPropagation(); | |
716 | event.preventDefault(); | |
717 | } catch (e) { | |
718 | } | |
719 | try { | |
720 | // For IE | |
721 | event.cancelBubble = true; | |
722 | event.returnValue = false; | |
723 | event.button = 0; | |
724 | event.keyCode = 0; | |
725 | } catch (e) { | |
726 | } | |
727 | return false; | |
728 | }; | |
729 | ||
730 | VT100.prototype.mouseEvent = function(event, type) { | |
731 | // If any text is currently selected, do not move the focus as that would | |
732 | // invalidate the selection. | |
733 | var selection = this.selection(); | |
c27d0db9 | 734 | if ((type == 1 /* MOUSE_UP */ || type == 2 /* MOUSE_CLICK */) && !selection.length) { |
7460295f MG |
735 | this.input.focus(); |
736 | } | |
737 | ||
738 | // Compute mouse position in characters. | |
739 | var offsetX = this.container.offsetLeft; | |
740 | var offsetY = this.container.offsetTop; | |
741 | for (var e = this.container; e = e.offsetParent; ) { | |
742 | offsetX += e.offsetLeft; | |
743 | offsetY += e.offsetTop; | |
744 | } | |
745 | var x = (event.clientX - offsetX) / this.cursorWidth; | |
746 | var y = ((event.clientY - offsetY) + this.scrollable.offsetTop) / | |
747 | this.cursorHeight - this.numScrollbackLines; | |
748 | var inside = true; | |
749 | if (x >= this.terminalWidth) { | |
750 | x = this.terminalWidth - 1; | |
751 | inside = false; | |
752 | } | |
753 | if (x < 0) { | |
754 | x = 0; | |
755 | inside = false; | |
756 | } | |
757 | if (y >= this.terminalHeight) { | |
758 | y = this.terminalHeight - 1; | |
759 | inside = false; | |
760 | } | |
761 | if (y < 0) { | |
762 | y = 0; | |
763 | inside = false; | |
764 | } | |
765 | ||
766 | // Compute button number and modifier keys. | |
c27d0db9 | 767 | var button = type != 0 /* MOUSE_DOWN */ ? 3 : |
7460295f MG |
768 | typeof event.pageX != 'undefined' ? event.button : |
769 | [ undefined, 0, 2, 0, 1, 0, 1, 0 ][event.button]; | |
770 | if (button != undefined) { | |
771 | if (event.shiftKey) { | |
772 | button |= 0x04; | |
773 | } | |
774 | if (event.altKey || event.metaKey) { | |
775 | button |= 0x08; | |
776 | } | |
777 | if (event.ctrlKey) { | |
778 | button |= 0x10; | |
779 | } | |
780 | } | |
781 | ||
782 | // Report mouse events if they happen inside of the current screen and | |
783 | // with the SHIFT key unpressed. Both of these restrictions do not apply | |
784 | // for button releases, as we always want to report those. | |
785 | if (this.mouseReporting && !selection.length && | |
c27d0db9 MG |
786 | (type != 0 /* MOUSE_DOWN */ || !event.shiftKey)) { |
787 | if (inside || type != 0 /* MOUSE_DOWN */) { | |
7460295f MG |
788 | if (button != undefined) { |
789 | var report = '\u001B[M' + String.fromCharCode(button + 32) + | |
790 | String.fromCharCode(x + 33) + | |
791 | String.fromCharCode(y + 33); | |
c27d0db9 | 792 | if (type != 2 /* MOUSE_CLICK */) { |
7460295f MG |
793 | this.keysPressed(report); |
794 | } | |
795 | ||
796 | // If we reported the event, stop propagating it (not sure, if this | |
797 | // actually works on most browsers; blocking the global "oncontextmenu" | |
798 | // even is still necessary). | |
799 | return this.cancelEvent(event); | |
800 | } | |
801 | } | |
802 | } | |
803 | ||
804 | // Bring up context menu. | |
805 | if (button == 2 && !event.shiftKey) { | |
c27d0db9 | 806 | if (type == 0 /* MOUSE_DOWN */) { |
7460295f MG |
807 | this.showContextMenu(event.clientX - offsetX, event.clientY - offsetY); |
808 | } | |
809 | return this.cancelEvent(event); | |
810 | } | |
811 | ||
812 | if (this.mouseReporting) { | |
813 | try { | |
814 | event.shiftKey = false; | |
815 | } catch (e) { | |
816 | } | |
817 | } | |
818 | ||
819 | return true; | |
820 | }; | |
821 | ||
f0c6fd39 MG |
822 | VT100.prototype.replaceChar = function(s, ch, repl) { |
823 | for (var i = -1;;) { | |
824 | i = s.indexOf(ch, i + 1); | |
825 | if (i < 0) { | |
826 | break; | |
827 | } | |
828 | s = s.substr(0, i) + repl + s.substr(i + 1); | |
829 | } | |
830 | return s; | |
831 | }; | |
832 | ||
833 | VT100.prototype.htmlEscape = function(s) { | |
a7164199 MG |
834 | return this.replaceChar(this.replaceChar(this.replaceChar(this.replaceChar( |
835 | s, '&', '&'), '<', '<'), '"', '"'), ' ', '\u00A0'); | |
f0c6fd39 MG |
836 | }; |
837 | ||
7460295f MG |
838 | VT100.prototype.getTextContent = function(elem) { |
839 | return elem.textContent || | |
840 | (typeof elem.textContent == 'undefined' ? elem.innerText : ''); | |
841 | }; | |
842 | ||
843 | VT100.prototype.setTextContent = function(elem, s) { | |
f0c6fd39 MG |
844 | // Check if we find any URLs in the text. If so, automatically convert them |
845 | // to links. | |
846 | if (this.urlRE && this.urlRE.test(s)) { | |
847 | var inner = ''; | |
848 | for (;;) { | |
849 | var consumed = 0; | |
850 | if (RegExp.leftContext != null) { | |
851 | inner += this.htmlEscape(RegExp.leftContext); | |
852 | consumed += RegExp.leftContext.length; | |
853 | } | |
854 | var url = this.htmlEscape(RegExp.lastMatch); | |
855 | var fullUrl = url; | |
856 | ||
857 | // If no protocol was specified, try to guess a reasonable one. | |
858 | if (url.indexOf('http://') < 0 && url.indexOf('https://') < 0 && | |
859 | url.indexOf('ftp://') < 0 && url.indexOf('mailto:') < 0) { | |
860 | var slash = url.indexOf('/'); | |
861 | var at = url.indexOf('@'); | |
862 | var question = url.indexOf('?'); | |
863 | if (at > 0 && | |
864 | (at < question || question < 0) && | |
865 | (slash < 0 || (question > 0 && slash > question))) { | |
866 | fullUrl = 'mailto:' + url; | |
867 | } else { | |
868 | fullUrl = (url.indexOf('ftp.') == 0 ? 'ftp://' : 'http://') + | |
869 | url; | |
870 | } | |
871 | } | |
872 | ||
873 | inner += '<a target="vt100Link" href="' + fullUrl + | |
874 | '">' + url + '</a>'; | |
875 | consumed += RegExp.lastMatch.length; | |
876 | s = s.substr(consumed); | |
877 | if (!this.urlRE.test(s)) { | |
878 | if (RegExp.rightContext != null) { | |
879 | inner += this.htmlEscape(RegExp.rightContext); | |
880 | } | |
881 | break; | |
882 | } | |
883 | } | |
884 | elem.innerHTML = inner; | |
885 | return; | |
886 | } | |
887 | ||
7460295f MG |
888 | // Updating the content of an element is an expensive operation. It actually |
889 | // pays off to first check whether the element is still unchanged. | |
890 | if (typeof elem.textContent == 'undefined') { | |
891 | if (elem.innerText != s) { | |
a7164199 MG |
892 | try { |
893 | elem.innerText = s; | |
894 | } catch (e) { | |
895 | // Very old versions of IE do not allow setting innerText. Instead, | |
896 | // remove all children, by setting innerHTML and then set the text | |
897 | // using DOM methods. | |
898 | elem.innerHTML = ''; | |
899 | elem.appendChild(document.createTextNode( | |
900 | this.replaceChar(s, ' ', '\u00A0'))); | |
901 | } | |
7460295f MG |
902 | } |
903 | } else { | |
904 | if (elem.textContent != s) { | |
905 | elem.textContent = s; | |
906 | } | |
907 | } | |
908 | }; | |
909 | ||
910 | VT100.prototype.insertBlankLine = function(y, style) { | |
911 | // Insert a blank line a position y. This method ignores the scrollback | |
912 | // buffer. The caller has to add the length of the scrollback buffer to | |
913 | // the position, if necessary. | |
914 | // If the position is larger than the number of current lines, this | |
915 | // method just adds a new line right after the last existing one. It does | |
916 | // not add any missing lines in between. It is the caller's responsibility | |
917 | // to do so. | |
918 | if (style == undefined) { | |
919 | style = ''; | |
920 | } | |
921 | var line; | |
922 | if (!style) { | |
923 | line = document.createElement('pre'); | |
924 | this.setTextContent(line, '\n'); | |
925 | } else { | |
926 | line = document.createElement('div'); | |
927 | var span = document.createElement('span'); | |
928 | span.style.cssText = style; | |
929 | this.setTextContent(span, this.spaces(this.terminalWidth)); | |
930 | line.appendChild(span); | |
931 | } | |
932 | line.style.height = this.cursorHeight + 'px'; | |
933 | var console = this.console[this.currentScreen]; | |
934 | if (console.childNodes.length > y) { | |
935 | console.insertBefore(line, console.childNodes[y]); | |
936 | } else { | |
937 | console.appendChild(line); | |
938 | } | |
939 | }; | |
940 | ||
941 | VT100.prototype.updateWidth = function() { | |
942 | this.terminalWidth = Math.floor(this.console[this.currentScreen].offsetWidth/ | |
943 | this.cursorWidth); | |
944 | return this.terminalWidth; | |
945 | }; | |
946 | ||
947 | VT100.prototype.updateHeight = function() { | |
948 | // We want to be able to display either a terminal window that fills the | |
949 | // entire browser window, or a terminal window that is contained in a | |
950 | // <div> which is embededded somewhere in the web page. | |
951 | if (this.isEmbedded) { | |
952 | // Embedded terminal. Use size of the containing <div> (id="vt100"). | |
953 | this.terminalHeight = Math.floor((this.container.clientHeight-1) / | |
954 | this.cursorHeight); | |
955 | } else { | |
956 | // Use the full browser window. | |
957 | this.terminalHeight = Math.floor(((window.innerHeight || | |
30046882 MG |
958 | document.documentElement.clientHeight || |
959 | document.body.clientHeight)-1)/ | |
7460295f MG |
960 | this.cursorHeight); |
961 | } | |
962 | return this.terminalHeight; | |
963 | }; | |
964 | ||
965 | VT100.prototype.updateNumScrollbackLines = function() { | |
966 | var scrollback = Math.floor( | |
967 | this.console[this.currentScreen].offsetHeight / | |
968 | this.cursorHeight) - | |
969 | this.terminalHeight; | |
970 | this.numScrollbackLines = scrollback < 0 ? 0 : scrollback; | |
971 | return this.numScrollbackLines; | |
972 | }; | |
973 | ||
974 | VT100.prototype.truncateLines = function(width) { | |
975 | if (width < 0) { | |
976 | width = 0; | |
977 | } | |
978 | for (var line = this.console[this.currentScreen].firstChild; line; | |
979 | line = line.nextSibling) { | |
980 | if (line.tagName == 'DIV') { | |
981 | var x = 0; | |
982 | ||
ce0cf224 | 983 | // Traverse current line and truncate it once we saw "width" characters |
7460295f MG |
984 | for (var span = line.firstChild; span; |
985 | span = span.nextSibling) { | |
986 | var s = this.getTextContent(span); | |
987 | var l = s.length; | |
988 | if (x + l > width) { | |
989 | this.setTextContent(span, s.substr(0, width - x)); | |
990 | while (span.nextSibling) { | |
991 | line.removeChild(line.lastChild); | |
992 | } | |
993 | break; | |
994 | } | |
995 | x += l; | |
996 | } | |
997 | // Prune white space from the end of the current line | |
998 | var span = line.lastChild; | |
999 | while (span && !span.style.cssText.length) { | |
1000 | // Scan backwards looking for first non-space character | |
1001 | var s = this.getTextContent(span); | |
1002 | for (var i = s.length; i--; ) { | |
ce0cf224 | 1003 | if (s.charAt(i) != ' ' && s.charAt(i) != '\u00A0') { |
7460295f MG |
1004 | if (i+1 != s.length) { |
1005 | this.setTextContent(s.substr(0, i+1)); | |
1006 | } | |
1007 | span = null; | |
1008 | break; | |
1009 | } | |
1010 | } | |
1011 | if (span) { | |
1012 | var sibling = span; | |
1013 | span = span.previousSibling; | |
1014 | if (span) { | |
1015 | // Remove blank <span>'s from end of line | |
1016 | line.removeChild(sibling); | |
1017 | } else { | |
1018 | // Remove entire line (i.e. <div>), if empty | |
1019 | var blank = document.createElement('pre'); | |
1020 | blank.style.height = this.cursorHeight + 'px'; | |
1021 | this.setTextContent(blank, '\n'); | |
1022 | line.parentNode.replaceChild(blank, line); | |
1023 | } | |
1024 | } | |
1025 | } | |
1026 | } | |
1027 | } | |
1028 | }; | |
1029 | ||
1030 | VT100.prototype.putString = function(x, y, text, style) { | |
1031 | if (!style) { | |
1032 | style = ''; | |
1033 | } | |
1034 | var yIdx = y + this.numScrollbackLines; | |
1035 | var line; | |
1036 | var sibling; | |
1037 | var s; | |
1038 | var span; | |
1039 | var xPos = 0; | |
1040 | var console = this.console[this.currentScreen]; | |
1041 | if (!text.length && (yIdx >= console.childNodes.length || | |
1042 | console.childNodes[yIdx].tagName != 'DIV')) { | |
1043 | // Positioning cursor to a blank location | |
1044 | span = null; | |
1045 | } else { | |
1046 | // Create missing blank lines at end of page | |
1047 | while (console.childNodes.length <= yIdx) { | |
1048 | // In order to simplify lookups, we want to make sure that each line | |
1049 | // is represented by exactly one element (and possibly a whole bunch of | |
1050 | // children). | |
1051 | // For non-blank lines, we can create a <div> containing one or more | |
1052 | // <span>s. For blank lines, this fails as browsers tend to optimize them | |
1053 | // away. But fortunately, a <pre> tag containing a newline character | |
1054 | // appears to work for all browsers (a would also work, but then | |
1055 | // copying from the browser window would insert superfluous spaces into | |
1056 | // the clipboard). | |
1057 | this.insertBlankLine(yIdx); | |
1058 | } | |
1059 | line = console.childNodes[yIdx]; | |
1060 | ||
1061 | // If necessary, promote blank '\n' line to a <div> tag | |
1062 | if (line.tagName != 'DIV') { | |
1063 | var div = document.createElement('div'); | |
1064 | div.style.height = this.cursorHeight + 'px'; | |
1065 | div.innerHTML = '<span></span>'; | |
1066 | console.replaceChild(div, line); | |
1067 | line = div; | |
1068 | } | |
1069 | ||
1070 | // Scan through list of <span>'s until we find the one where our text | |
1071 | // starts | |
1072 | span = line.firstChild; | |
1073 | var len; | |
1074 | while (span.nextSibling && xPos < x) { | |
1075 | len = this.getTextContent(span).length; | |
1076 | if (xPos + len > x) { | |
1077 | break; | |
1078 | } | |
1079 | xPos += len; | |
1080 | span = span.nextSibling; | |
1081 | } | |
1082 | ||
1083 | if (text.length) { | |
1084 | // If current <span> is not long enough, pad with spaces or add new | |
1085 | // span | |
1086 | s = this.getTextContent(span); | |
1087 | var oldStyle = span.style.cssText; | |
1088 | if (xPos + s.length < x) { | |
1089 | if (oldStyle != '') { | |
1090 | span = document.createElement('span'); | |
1091 | line.appendChild(span); | |
1092 | span.style.cssText = ''; | |
1093 | oldStyle = ''; | |
1094 | xPos += s.length; | |
1095 | s = ''; | |
1096 | } | |
1097 | do { | |
1098 | s += ' '; | |
1099 | } while (xPos + s.length < x); | |
1100 | } | |
1101 | ||
1102 | // If styles do not match, create a new <span> | |
1103 | var del = text.length - s.length + x - xPos; | |
1104 | if (oldStyle != style && (oldStyle || style)) { | |
1105 | if (xPos == x) { | |
1106 | // Replacing text at beginning of existing <span> | |
1107 | if (text.length >= s.length) { | |
1108 | // New text is equal or longer than existing text | |
1109 | s = text; | |
1110 | } else { | |
1111 | // Insert new <span> before the current one, then remove leading | |
1112 | // part of existing <span>, adjust style of new <span>, and finally | |
1113 | // set its contents | |
1114 | sibling = document.createElement('span'); | |
1115 | line.insertBefore(sibling, span); | |
1116 | this.setTextContent(span, s.substr(text.length)); | |
1117 | span = sibling; | |
1118 | s = text; | |
1119 | } | |
1120 | } else { | |
1121 | // Replacing text some way into the existing <span> | |
1122 | var remainder = s.substr(x + text.length - xPos); | |
1123 | this.setTextContent(span, s.substr(0, x - xPos)); | |
1124 | xPos = x; | |
1125 | sibling = document.createElement('span'); | |
1126 | if (span.nextSibling) { | |
1127 | line.insertBefore(sibling, span.nextSibling); | |
1128 | span = sibling; | |
1129 | if (remainder.length) { | |
1130 | sibling = document.createElement('span'); | |
1131 | sibling.style.cssText = oldStyle; | |
1132 | this.setTextContent(sibling, remainder); | |
1133 | line.insertBefore(sibling, span.nextSibling); | |
1134 | } | |
1135 | } else { | |
1136 | line.appendChild(sibling); | |
1137 | span = sibling; | |
1138 | if (remainder.length) { | |
1139 | sibling = document.createElement('span'); | |
1140 | sibling.style.cssText = oldStyle; | |
1141 | this.setTextContent(sibling, remainder); | |
1142 | line.appendChild(sibling); | |
1143 | } | |
1144 | } | |
1145 | s = text; | |
1146 | } | |
1147 | span.style.cssText = style; | |
1148 | } else { | |
1149 | // Overwrite (partial) <span> with new text | |
1150 | s = s.substr(0, x - xPos) + | |
1151 | text + | |
1152 | s.substr(x + text.length - xPos); | |
1153 | } | |
1154 | this.setTextContent(span, s); | |
1155 | ||
1156 | ||
1157 | // Delete all subsequent <span>'s that have just been overwritten | |
1158 | sibling = span.nextSibling; | |
1159 | while (del > 0 && sibling) { | |
1160 | s = this.getTextContent(sibling); | |
1161 | len = s.length; | |
1162 | if (len <= del) { | |
1163 | line.removeChild(sibling); | |
1164 | del -= len; | |
1165 | sibling = span.nextSibling; | |
1166 | } else { | |
1167 | this.setTextContent(sibling, s.substr(del)); | |
1168 | break; | |
1169 | } | |
1170 | } | |
1171 | ||
1172 | // Merge <span> with next sibling, if styles are identical | |
1173 | if (sibling && span.style.cssText == sibling.style.cssText) { | |
1174 | this.setTextContent(span, | |
1175 | this.getTextContent(span) + | |
1176 | this.getTextContent(sibling)); | |
1177 | line.removeChild(sibling); | |
1178 | } | |
1179 | } | |
1180 | } | |
1181 | ||
1182 | // Position cursor | |
1183 | this.cursorX = x + text.length; | |
1184 | if (this.cursorX >= this.terminalWidth) { | |
1185 | this.cursorX = this.terminalWidth - 1; | |
1186 | if (this.cursorX < 0) { | |
1187 | this.cursorX = 0; | |
1188 | } | |
1189 | } | |
38d64ad8 MG |
1190 | var pixelX = -1; |
1191 | var pixelY = -1; | |
7460295f MG |
1192 | if (!this.cursor.style.visibility) { |
1193 | var idx = this.cursorX - xPos; | |
1194 | if (span) { | |
38d64ad8 MG |
1195 | // If we are in a non-empty line, take the cursor Y position from the |
1196 | // other elements in this line. If dealing with broken, non-proportional | |
1197 | // fonts, this is likely to yield better results. | |
3a3b75e1 MG |
1198 | pixelY = span.offsetTop + |
1199 | span.offsetParent.offsetTop; | |
38d64ad8 MG |
1200 | s = this.getTextContent(span); |
1201 | var nxtIdx = idx - s.length; | |
7460295f | 1202 | if (nxtIdx < 0) { |
38d64ad8 MG |
1203 | this.setTextContent(this.cursor, s.charAt(idx)); |
1204 | pixelX = span.offsetLeft + | |
1205 | idx*span.offsetWidth / s.length; | |
7460295f | 1206 | } else { |
38d64ad8 MG |
1207 | if (nxtIdx == 0) { |
1208 | pixelX = span.offsetLeft + span.offsetWidth; | |
1209 | } | |
1210 | if (span.nextSibling) { | |
1211 | s = this.getTextContent(span.nextSibling); | |
1212 | this.setTextContent(this.cursor, s.charAt(nxtIdx)); | |
1213 | if (pixelX < 0) { | |
1214 | pixelX = span.nextSibling.offsetLeft + | |
1215 | nxtIdx*span.offsetWidth / s.length; | |
1216 | } | |
1217 | } else { | |
1218 | this.setTextContent(this.cursor, ' '); | |
1219 | } | |
7460295f MG |
1220 | } |
1221 | } else { | |
1222 | this.setTextContent(this.cursor, ' '); | |
1223 | } | |
1224 | } | |
38d64ad8 | 1225 | if (pixelX >= 0) { |
bf57c5f9 | 1226 | this.cursor.style.left = (pixelX + (this.isIE ? 1 : 0)) + 'px'; |
38d64ad8 | 1227 | } else { |
79a640e0 MG |
1228 | this.setTextContent(this.space, this.spaces(this.cursorX)); |
1229 | this.cursor.style.left = this.space.offsetWidth + | |
7460295f | 1230 | console.offsetLeft + 'px'; |
38d64ad8 | 1231 | } |
7460295f | 1232 | this.cursorY = yIdx - this.numScrollbackLines; |
38d64ad8 MG |
1233 | if (pixelY >= 0) { |
1234 | this.cursor.style.top = pixelY + 'px'; | |
1235 | } else { | |
1236 | this.cursor.style.top = yIdx*this.cursorHeight + | |
7460295f | 1237 | console.offsetTop + 'px'; |
38d64ad8 | 1238 | } |
7460295f MG |
1239 | |
1240 | if (text.length) { | |
1241 | // Merge <span> with previous sibling, if styles are identical | |
1242 | if ((sibling = span.previousSibling) && | |
1243 | span.style.cssText == sibling.style.cssText) { | |
1244 | this.setTextContent(span, | |
1245 | this.getTextContent(sibling) + | |
1246 | this.getTextContent(span)); | |
1247 | line.removeChild(sibling); | |
1248 | } | |
1249 | ||
1250 | // Prune white space from the end of the current line | |
1251 | span = line.lastChild; | |
1252 | while (span && !span.style.cssText.length) { | |
1253 | // Scan backwards looking for first non-space character | |
1254 | s = this.getTextContent(span); | |
1255 | for (var i = s.length; i--; ) { | |
ce0cf224 | 1256 | if (s.charAt(i) != ' ' && s.charAt(i) != '\u00A0') { |
7460295f MG |
1257 | if (i+1 != s.length) { |
1258 | this.setTextContent(s.substr(0, i+1)); | |
1259 | } | |
1260 | span = null; | |
1261 | break; | |
1262 | } | |
1263 | } | |
1264 | if (span) { | |
1265 | sibling = span; | |
1266 | span = span.previousSibling; | |
1267 | if (span) { | |
1268 | // Remove blank <span>'s from end of line | |
1269 | line.removeChild(sibling); | |
1270 | } else { | |
1271 | // Remove entire line (i.e. <div>), if empty | |
1272 | var blank = document.createElement('pre'); | |
1273 | blank.style.height = this.cursorHeight + 'px'; | |
1274 | this.setTextContent(blank, '\n'); | |
1275 | line.parentNode.replaceChild(blank, line); | |
1276 | } | |
1277 | } | |
1278 | } | |
1279 | } | |
1280 | }; | |
1281 | ||
1282 | VT100.prototype.gotoXY = function(x, y) { | |
1283 | if (x >= this.terminalWidth) { | |
1284 | x = this.terminalWidth - 1; | |
1285 | } | |
1286 | if (x < 0) { | |
1287 | x = 0; | |
1288 | } | |
1289 | var minY, maxY; | |
1290 | if (this.offsetMode) { | |
1291 | minY = this.top; | |
1292 | maxY = this.bottom; | |
1293 | } else { | |
1294 | minY = 0; | |
1295 | maxY = this.terminalHeight; | |
1296 | } | |
1297 | if (y >= maxY) { | |
1298 | y = maxY - 1; | |
1299 | } | |
1300 | if (y < minY) { | |
1301 | y = minY; | |
1302 | } | |
1303 | this.putString(x, y, '', undefined); | |
1304 | this.needWrap = false; | |
1305 | }; | |
1306 | ||
1307 | VT100.prototype.gotoXaY = function(x, y) { | |
1308 | this.gotoXY(x, this.offsetMode ? (this.top + y) : y); | |
1309 | }; | |
1310 | ||
1311 | VT100.prototype.refreshInvertedState = function() { | |
1312 | if (this.isInverted) { | |
1313 | this.scrollable.style.color = this.ansi[15]; | |
1314 | this.scrollable.style.backgroundColor = this.ansi[0]; | |
1315 | } else { | |
1316 | this.scrollable.style.color = ''; | |
1317 | this.scrollable.style.backgroundColor = ''; | |
1318 | } | |
1319 | }; | |
1320 | ||
1321 | VT100.prototype.enableAlternateScreen = function(state) { | |
1322 | // Don't do anything, if we are already on the desired screen | |
1323 | if ((state ? 1 : 0) == this.currentScreen) { | |
1324 | // Calling the resizer is not actually necessary. But it is a good way | |
1325 | // of resetting state that might have gotten corrupted. | |
1326 | this.resizer(); | |
1327 | return; | |
1328 | } | |
1329 | ||
1330 | // We save the full state of the normal screen, when we switch away from it. | |
1331 | // But for the alternate screen, no saving is necessary. We always reset | |
1332 | // it when we switch to it. | |
1333 | if (state) { | |
1334 | this.saveCursor(); | |
1335 | } | |
1336 | ||
1337 | // Display new screen, and initialize state (the resizer does that for us). | |
1338 | this.currentScreen = state ? 1 : 0; | |
1339 | this.console[1-this.currentScreen].style.display = 'none'; | |
1340 | this.console[this.currentScreen].style.display = ''; | |
1341 | this.resizer(); | |
1342 | ||
1343 | // If we switched to the alternate screen, reset it completely. Otherwise, | |
1344 | // restore the saved state. | |
1345 | if (state) { | |
1346 | this.gotoXY(0, 0); | |
1347 | this.clearRegion(0, 0, this.terminalWidth, this.terminalHeight); | |
1348 | } else { | |
1349 | this.restoreCursor(); | |
1350 | } | |
1351 | }; | |
1352 | ||
1353 | VT100.prototype.hideCursor = function() { | |
1354 | var hidden = this.cursor.style.visibility == 'hidden'; | |
1355 | if (!hidden) { | |
1356 | this.cursor.style.visibility = 'hidden'; | |
1357 | return true; | |
1358 | } | |
1359 | return false; | |
1360 | }; | |
1361 | ||
1362 | VT100.prototype.showCursor = function(x, y) { | |
1363 | if (this.cursor.style.visibility) { | |
1364 | this.cursor.style.visibility = ''; | |
1365 | this.putString(x == undefined ? this.cursorX : x, | |
1366 | y == undefined ? this.cursorY : y, | |
1367 | '', undefined); | |
1368 | return true; | |
1369 | } | |
1370 | return false; | |
1371 | }; | |
1372 | ||
1373 | VT100.prototype.scrollBack = function() { | |
1374 | var i = this.scrollable.scrollTop - | |
1375 | this.scrollable.clientHeight; | |
1376 | this.scrollable.scrollTop = i < 0 ? 0 : i; | |
1377 | }; | |
1378 | ||
1379 | VT100.prototype.scrollFore = function() { | |
1380 | var i = this.scrollable.scrollTop + | |
1381 | this.scrollable.clientHeight; | |
1382 | this.scrollable.scrollTop = i > this.numScrollbackLines * | |
1383 | this.cursorHeight + 1 | |
1384 | ? this.numScrollbackLines * | |
1385 | this.cursorHeight + 1 | |
1386 | : i; | |
1387 | }; | |
1388 | ||
1389 | VT100.prototype.spaces = function(i) { | |
1390 | var s = ''; | |
1391 | while (i-- > 0) { | |
1392 | s += ' '; | |
1393 | } | |
1394 | return s; | |
1395 | }; | |
1396 | ||
1397 | VT100.prototype.clearRegion = function(x, y, w, h, style) { | |
1398 | w += x; | |
1399 | if (x < 0) { | |
1400 | x = 0; | |
1401 | } | |
1402 | if (w > this.terminalWidth) { | |
1403 | w = this.terminalWidth; | |
1404 | } | |
1405 | if ((w -= x) <= 0) { | |
1406 | return; | |
1407 | } | |
1408 | h += y; | |
1409 | if (y < 0) { | |
1410 | y = 0; | |
1411 | } | |
1412 | if (h > this.terminalHeight) { | |
1413 | h = this.terminalHeight; | |
1414 | } | |
1415 | if ((h -= y) <= 0) { | |
1416 | return; | |
1417 | } | |
1418 | ||
1419 | // Special case the situation where we clear the entire screen, and we do | |
1420 | // not have a scrollback buffer. In that case, we should just remove all | |
1421 | // child nodes. | |
1422 | if (!this.numScrollbackLines && | |
bb335b40 MG |
1423 | w == this.terminalWidth && h == this.terminalHeight && |
1424 | !style) { | |
7460295f MG |
1425 | var console = this.console[this.currentScreen]; |
1426 | while (console.lastChild) { | |
1427 | console.removeChild(console.lastChild); | |
1428 | } | |
1429 | this.putString(this.cursorX, this.cursorY, '', undefined); | |
1430 | } else { | |
1431 | var hidden = this.hideCursor(); | |
1432 | var cx = this.cursorX; | |
1433 | var cy = this.cursorY; | |
1434 | var s = this.spaces(w); | |
1435 | for (var i = y+h; i-- > y; ) { | |
1436 | this.putString(x, i, s, style); | |
1437 | } | |
1438 | hidden ? this.showCursor(cx, cy) : this.putString(cx, cy, '', undefined); | |
1439 | } | |
1440 | }; | |
1441 | ||
1442 | VT100.prototype.copyLineSegment = function(dX, dY, sX, sY, w) { | |
1443 | var text = [ ]; | |
1444 | var style = [ ]; | |
1445 | var console = this.console[this.currentScreen]; | |
1446 | if (sY >= console.childNodes.length) { | |
1447 | text[0] = this.spaces(w); | |
1448 | style[0] = null; | |
1449 | } else { | |
1450 | var line = console.childNodes[sY]; | |
1451 | if (line.tagName != 'DIV' || !line.childNodes.length) { | |
1452 | text[0] = this.spaces(w); | |
1453 | style[0] = null; | |
1454 | } else { | |
1455 | var x = 0; | |
1456 | for (var span = line.firstChild; span && w > 0; span = span.nextSibling){ | |
1457 | var s = this.getTextContent(span); | |
1458 | var len = s.length; | |
1459 | if (x + len > sX) { | |
1460 | var o = sX > x ? sX - x : 0; | |
1461 | text[text.length] = s.substr(o, w); | |
1462 | style[style.length] = span.style.cssText; | |
1463 | w -= len - o; | |
1464 | } | |
1465 | x += len; | |
1466 | } | |
1467 | if (w > 0) { | |
1468 | text[text.length] = this.spaces(w); | |
1469 | style[style.length] = null; | |
1470 | } | |
1471 | } | |
1472 | } | |
1473 | var hidden = this.hideCursor(); | |
1474 | var cx = this.cursorX; | |
1475 | var cy = this.cursorY; | |
1476 | for (var i = 0; i < text.length; i++) { | |
1477 | this.putString(dX, dY - this.numScrollbackLines, text[i], style[i]); | |
1478 | dX += text[i].length; | |
1479 | } | |
1480 | hidden ? this.showCursor(cx, cy) : this.putString(cx, cy, '', undefined); | |
1481 | }; | |
1482 | ||
1483 | VT100.prototype.scrollRegion = function(x, y, w, h, incX, incY, style) { | |
1484 | var left = incX < 0 ? -incX : 0; | |
1485 | var right = incX > 0 ? incX : 0; | |
1486 | var up = incY < 0 ? -incY : 0; | |
1487 | var down = incY > 0 ? incY : 0; | |
1488 | ||
1489 | // Clip region against terminal size | |
1490 | var dontScroll = null; | |
1491 | w += x; | |
1492 | if (x < left) { | |
1493 | x = left; | |
1494 | } | |
1495 | if (w > this.terminalWidth - right) { | |
1496 | w = this.terminalWidth - right; | |
1497 | } | |
1498 | if ((w -= x) <= 0) { | |
1499 | dontScroll = 1; | |
1500 | } | |
1501 | h += y; | |
1502 | if (y < up) { | |
1503 | y = up; | |
1504 | } | |
1505 | if (h > this.terminalHeight - down) { | |
1506 | h = this.terminalHeight - down; | |
1507 | } | |
1508 | if ((h -= y) < 0) { | |
1509 | dontScroll = 1; | |
1510 | } | |
1511 | if (!dontScroll) { | |
1512 | if (style && style.indexOf('underline')) { | |
1513 | // Different terminal emulators disagree on the attributes that | |
1514 | // are used for scrolling. The consensus seems to be, never to | |
1515 | // fill with underlined spaces. N.B. this is different from the | |
1516 | // cases when the user blanks a region. User-initiated blanking | |
1517 | // always fills with all of the current attributes. | |
1518 | this.attributeHelper.cssText | |
1519 | = style.replace(/text-decoration:underline;/, ""); | |
1520 | style = this.attributeHelper.cssText; | |
1521 | } | |
1522 | ||
1523 | // Compute current scroll position | |
1524 | var scrollPos = this.numScrollbackLines - | |
1525 | (this.scrollable.scrollTop-1) / this.cursorHeight; | |
1526 | ||
1527 | // Determine original cursor position. Hide cursor temporarily to avoid | |
1528 | // visual artifacts. | |
57e76178 | 1529 | var hidden = this.hideCursor(); |
7460295f MG |
1530 | var cx = this.cursorX; |
1531 | var cy = this.cursorY; | |
1532 | var console = this.console[this.currentScreen]; | |
1533 | ||
1534 | if (!incX && !x && w == this.terminalWidth) { | |
1535 | // Scrolling entire lines | |
1536 | if (incY < 0) { | |
1537 | // Scrolling up | |
1538 | if (!this.currentScreen && y == -incY && | |
1539 | h == this.terminalHeight + incY) { | |
1540 | // Scrolling up with adding to the scrollback buffer. This is only | |
1541 | // possible if there are at least as many lines in the console, | |
1542 | // as the terminal is high | |
1543 | while (console.childNodes.length < this.terminalHeight) { | |
1544 | this.insertBlankLine(this.terminalHeight); | |
1545 | } | |
1546 | ||
1547 | // Add new lines at bottom in order to force scrolling | |
1548 | for (var i = 0; i < y; i++) { | |
1549 | this.insertBlankLine(console.childNodes.length, style); | |
1550 | } | |
1551 | ||
1552 | // Adjust the number of lines in the scrollback buffer by | |
1553 | // removing excess entries. | |
1554 | this.updateNumScrollbackLines(); | |
1555 | while (this.numScrollbackLines > | |
1556 | (this.currentScreen ? 0 : this.maxScrollbackLines)) { | |
1557 | console.removeChild(console.firstChild); | |
1558 | this.numScrollbackLines--; | |
1559 | } | |
1560 | ||
1561 | // Mark lines in the scrollback buffer, so that they do not get | |
1562 | // printed. | |
1563 | for (var i = this.numScrollbackLines, j = -incY; | |
1564 | i-- > 0 && j-- > 0; ) { | |
1565 | console.childNodes[i].className = 'scrollback'; | |
1566 | } | |
1567 | } else { | |
1568 | // Scrolling up without adding to the scrollback buffer. | |
1569 | for (var i = -incY; | |
1570 | i-- > 0 && | |
1571 | console.childNodes.length > | |
1572 | this.numScrollbackLines + y + incY; ) { | |
1573 | console.removeChild(console.childNodes[ | |
1574 | this.numScrollbackLines + y + incY]); | |
1575 | } | |
1576 | ||
1577 | // If we used to have a scrollback buffer, then we must make sure | |
1578 | // that we add back blank lines at the bottom of the terminal. | |
1579 | // Similarly, if we are scrolling in the middle of the screen, | |
1580 | // we must add blank lines to ensure that the bottom of the screen | |
1581 | // does not move up. | |
1582 | if (this.numScrollbackLines > 0 || | |
1583 | console.childNodes.length > this.numScrollbackLines+y+h+incY) { | |
1584 | for (var i = -incY; i-- > 0; ) { | |
bb335b40 MG |
1585 | this.insertBlankLine(this.numScrollbackLines + y + h + incY, |
1586 | style); | |
7460295f MG |
1587 | } |
1588 | } | |
1589 | } | |
1590 | } else { | |
1591 | // Scrolling down | |
1592 | for (var i = incY; | |
1593 | i-- > 0 && | |
1594 | console.childNodes.length > this.numScrollbackLines + y + h; ) { | |
1595 | console.removeChild(console.childNodes[this.numScrollbackLines+y+h]); | |
1596 | } | |
1597 | for (var i = incY; i--; ) { | |
bb335b40 | 1598 | this.insertBlankLine(this.numScrollbackLines + y, style); |
7460295f MG |
1599 | } |
1600 | } | |
1601 | } else { | |
1602 | // Scrolling partial lines | |
1603 | if (incY <= 0) { | |
1604 | // Scrolling up or horizontally within a line | |
1605 | for (var i = y + this.numScrollbackLines; | |
1606 | i < y + this.numScrollbackLines + h; | |
1607 | i++) { | |
1608 | this.copyLineSegment(x + incX, i + incY, x, i, w); | |
1609 | } | |
1610 | } else { | |
1611 | // Scrolling down | |
1612 | for (var i = y + this.numScrollbackLines + h; | |
1613 | i-- > y + this.numScrollbackLines; ) { | |
1614 | this.copyLineSegment(x + incX, i + incY, x, i, w); | |
1615 | } | |
1616 | } | |
1617 | ||
1618 | // Clear blank regions | |
1619 | if (incX > 0) { | |
1620 | this.clearRegion(x, y, incX, h, style); | |
1621 | } else if (incX < 0) { | |
1622 | this.clearRegion(x + w + incX, y, -incX, h, style); | |
1623 | } | |
1624 | if (incY > 0) { | |
1625 | this.clearRegion(x, y, w, incY, style); | |
1626 | } else if (incY < 0) { | |
1627 | this.clearRegion(x, y + h + incY, w, -incY, style); | |
1628 | } | |
1629 | } | |
1630 | ||
1631 | // Reset scroll position | |
1632 | this.scrollable.scrollTop = (this.numScrollbackLines-scrollPos) * | |
1633 | this.cursorHeight + 1; | |
1634 | ||
1635 | // Move cursor back to its original position | |
57e76178 | 1636 | hidden ? this.showCursor(cx, cy) : this.putString(cx, cy, '', undefined); |
7460295f MG |
1637 | } |
1638 | }; | |
1639 | ||
1640 | VT100.prototype.copy = function(selection) { | |
1641 | if (selection == undefined) { | |
1642 | selection = this.selection(); | |
1643 | } | |
1644 | this.internalClipboard = undefined; | |
1645 | if (selection.length) { | |
1646 | try { | |
1647 | // IE | |
1648 | this.cliphelper.value = selection; | |
1649 | this.cliphelper.select(); | |
1650 | this.cliphelper.createTextRange().execCommand('copy'); | |
1651 | } catch (e) { | |
1652 | this.internalClipboard = selection; | |
1653 | } | |
1654 | this.cliphelper.value = ''; | |
1655 | } | |
1656 | }; | |
1657 | ||
1658 | VT100.prototype.copyLast = function() { | |
1659 | // Opening the context menu can remove the selection. We try to prevent this | |
1660 | // from happening, but that is not possible for all browsers. So, instead, | |
1661 | // we compute the selection before showing the menu. | |
1662 | this.copy(this.lastSelection); | |
1663 | }; | |
1664 | ||
1665 | VT100.prototype.pasteFnc = function() { | |
1666 | var clipboard = undefined; | |
1667 | if (this.internalClipboard != undefined) { | |
1668 | clipboard = this.internalClipboard; | |
1669 | } else { | |
1670 | try { | |
1671 | this.cliphelper.value = ''; | |
1672 | this.cliphelper.createTextRange().execCommand('paste'); | |
1673 | clipboard = this.cliphelper.value; | |
1674 | } catch (e) { | |
1675 | } | |
1676 | } | |
1677 | this.cliphelper.value = ''; | |
1678 | if (clipboard && this.menu.style.visibility == 'hidden') { | |
1679 | return function() { | |
1680 | this.keysPressed('' + clipboard); | |
1681 | }; | |
1682 | } else { | |
1683 | return undefined; | |
1684 | } | |
1685 | }; | |
1686 | ||
1687 | VT100.prototype.toggleUTF = function() { | |
1688 | this.utfEnabled = !this.utfEnabled; | |
1689 | }; | |
1690 | ||
1691 | VT100.prototype.toggleBell = function() { | |
46f2036a | 1692 | this.visualBell = !this.visualBell; |
7460295f MG |
1693 | }; |
1694 | ||
1695 | VT100.prototype.about = function() { | |
1f771613 | 1696 | alert("VT100 Terminal Emulator " + "2.9 (revision 158)" + |
79341530 MG |
1697 | "\nCopyright 2008-2009 by Markus Gutschke\n" + |
1698 | "For more information check http://shellinabox.com"); | |
7460295f MG |
1699 | }; |
1700 | ||
1701 | VT100.prototype.hideContextMenu = function() { | |
1702 | this.menu.style.visibility = 'hidden'; | |
1703 | this.menu.style.top = '-100px'; | |
1704 | this.menu.style.left = '-100px'; | |
1705 | this.menu.style.width = '0px'; | |
1706 | this.menu.style.height = '0px'; | |
1707 | }; | |
1708 | ||
1709 | VT100.prototype.extendContextMenu = function(entries, actions) { | |
1710 | }; | |
1711 | ||
1712 | VT100.prototype.showContextMenu = function(x, y) { | |
1713 | this.menu.innerHTML = | |
1714 | '<table class="popup" ' + | |
1715 | 'cellpadding="0" cellspacing="0">' + | |
1716 | '<tr><td>' + | |
1717 | '<ul id="menuentries">' + | |
1718 | '<li id="beginclipboard">Copy</li>' + | |
1719 | '<li id="endclipboard">Paste</li>' + | |
1720 | '<hr />' + | |
1721 | '<li id="reset">Reset</li>' + | |
1722 | '<hr />' + | |
1723 | '<li id="beginconfig">' + | |
1724 | (this.utfEnabled ? '✔ ' : '') + 'Unicode</li>' + | |
1725 | '<li id="endconfig">' + | |
46f2036a | 1726 | (this.visualBell ? '✔ ' : '') + 'Visual Bell</li>'+ |
7460295f MG |
1727 | '<hr />' + |
1728 | '<li id="about">About...</li>' + | |
1729 | '</ul>' + | |
1730 | '</td></tr>' + | |
1731 | '</table>'; | |
1732 | ||
1733 | var popup = this.menu.firstChild; | |
1734 | var menuentries = this.getChildById(popup, 'menuentries'); | |
1735 | ||
1736 | // Determine menu entries that should be disabled | |
1737 | this.lastSelection = this.selection(); | |
1738 | if (!this.lastSelection.length) { | |
1739 | menuentries.firstChild.className | |
1740 | = 'disabled'; | |
1741 | } | |
1742 | var p = this.pasteFnc(); | |
1743 | if (!p) { | |
1744 | menuentries.childNodes[1].className | |
1745 | = 'disabled'; | |
1746 | } | |
1747 | var actions = [ this.copyLast, p, this.reset, | |
1748 | this.toggleUTF, this.toggleBell, | |
1749 | this.about ]; | |
1750 | ||
1751 | // Allow subclasses to dynamically add entries to the context menu | |
1752 | this.extendContextMenu(menuentries, actions); | |
1753 | ||
1754 | // Hook up event listeners | |
1755 | for (var node = menuentries.firstChild, i = 0; node; | |
1756 | node = node.nextSibling) { | |
1757 | if (node.tagName == 'LI') { | |
1758 | if (node.className != 'disabled') { | |
1759 | this.addListener(node, 'mouseover', | |
1760 | function(vt100, node) { | |
1761 | return function() { | |
1762 | node.className = 'hover'; | |
1763 | } | |
1764 | }(this, node)); | |
1765 | this.addListener(node, 'mouseout', | |
1766 | function(vt100, node) { | |
1767 | return function() { | |
1768 | node.className = ''; | |
1769 | } | |
1770 | }(this, node)); | |
1771 | this.addListener(node, 'mousedown', | |
1772 | function(vt100, action) { | |
1773 | return function(event) { | |
1774 | vt100.hideContextMenu(); | |
1775 | action.call(vt100); | |
1776 | return vt100.cancelEvent(event || window.event); | |
1777 | } | |
1778 | }(this, actions[i])); | |
1779 | this.addListener(node, 'mouseup', | |
1780 | function(vt100) { | |
1781 | return function(event) { | |
1782 | return vt100.cancelEvent(event || window.event); | |
1783 | } | |
1784 | }(this)); | |
1785 | this.addListener(node, 'mouseclick', | |
1786 | function(vt100) { | |
1787 | return function(event) { | |
1788 | return vt100.cancelEvent(event || window.event); | |
1789 | } | |
1790 | }()); | |
1791 | } | |
1792 | i++; | |
1793 | } | |
1794 | } | |
1795 | ||
1796 | // Position menu next to the mouse pointer | |
1797 | if (x + popup.clientWidth > this.container.offsetWidth) { | |
1798 | x = this.container.offsetWidth - popup.clientWidth; | |
1799 | } | |
1800 | if (x < 0) { | |
1801 | x = 0; | |
1802 | } | |
1803 | if (y + popup.clientHeight > this.container.offsetHeight) { | |
1804 | y = this.container.offsetHeight-popup.clientHeight; | |
1805 | } | |
1806 | if (y < 0) { | |
1807 | y = 0; | |
1808 | } | |
1809 | popup.style.left = x + 'px'; | |
1810 | popup.style.top = y + 'px'; | |
1811 | ||
1812 | // Block all other interactions with the terminal emulator | |
1813 | this.menu.style.left = '0px'; | |
1814 | this.menu.style.top = '0px'; | |
1815 | this.menu.style.width = this.container.offsetWidth + 'px'; | |
1816 | this.menu.style.height = this.container.offsetHeight + 'px'; | |
1817 | this.addListener(this.menu, 'click', function(vt100) { | |
1818 | return function() { | |
1819 | vt100.hideContextMenu(); | |
1820 | } | |
1821 | }(this)); | |
1822 | ||
1823 | // Show the menu | |
1824 | this.menu.style.visibility = ''; | |
1825 | }; | |
1826 | ||
1827 | VT100.prototype.keysPressed = function(ch) { | |
1828 | for (var i = 0; i < ch.length; i++) { | |
1829 | var c = ch.charCodeAt(i); | |
1830 | this.vt100(c >= 7 && c <= 15 || | |
1831 | c == 24 || c == 26 || c == 27 || c >= 32 | |
1832 | ? String.fromCharCode(c) : '<' + c + '>'); | |
1833 | } | |
1834 | }; | |
1835 | ||
1836 | VT100.prototype.handleKey = function(event) { | |
1837 | var ch, key; | |
1838 | if (typeof event.charCode != 'undefined') { | |
1839 | // non-IE keypress events have a translated charCode value. Also, our | |
1840 | // fake events generated when receiving keydown events include this data | |
1841 | // on all browsers. | |
1842 | ch = event.charCode; | |
1843 | key = event.keyCode; | |
1844 | } else { | |
1845 | // When sending a keypress event, IE includes the translated character | |
1846 | // code in the keyCode field. | |
1847 | ch = event.keyCode; | |
1848 | key = undefined; | |
1849 | } | |
1850 | ||
1851 | // Apply modifier keys (ctrl and shift) | |
1852 | if (ch) { | |
1853 | key = undefined; | |
1854 | if (event.ctrlKey) { | |
1855 | if (ch >= 32 && ch <= 127) { | |
1856 | ch &= 0x1F; | |
1857 | } | |
1858 | } else { | |
1859 | if (event.shiftKey) { | |
1860 | if (ch >= 97 && ch <= 122) { | |
1861 | ch -= 32; | |
1862 | } | |
1863 | } else { | |
1864 | if (ch >= 65 && ch <= 90) { | |
1865 | ch += 32; | |
1866 | } | |
1867 | } | |
1868 | } | |
1869 | } else { | |
1870 | ch = undefined; | |
1871 | } | |
1872 | ||
1873 | // By this point, "ch" is either defined and contains the character code, or | |
1874 | // it is undefined and "key" defines the code of a function key | |
1875 | if (ch != undefined) { | |
1876 | ch = String.fromCharCode(ch); | |
1877 | this.scrollable.scrollTop = this.numScrollbackLines * | |
1878 | this.cursorHeight + 1; | |
1879 | } else { | |
1880 | if ((event.altKey || event.metaKey) && !event.shiftKey && !event.ctrlKey) { | |
1881 | // Many programs have difficulties dealing with parametrized escape | |
1882 | // sequences for function keys. Thus, if ALT is the only modifier | |
1883 | // key, return Emacs-style keycodes for commonly used keys. | |
1884 | switch (key) { | |
1885 | case 33: /* Page Up */ ch = '\u001B<'; break; | |
1886 | case 34: /* Page Down */ ch = '\u001B>'; break; | |
1887 | case 37: /* Left */ ch = '\u001Bb'; break; | |
1888 | case 38: /* Up */ ch = '\u001Bp'; break; | |
1889 | case 39: /* Right */ ch = '\u001Bf'; break; | |
1890 | case 40: /* Down */ ch = '\u001Bn'; break; | |
1891 | case 46: /* Delete */ ch = '\u001Bd'; break; | |
1892 | default: break; | |
1893 | } | |
1894 | } else if (event.shiftKey && !event.ctrlKey && | |
1895 | !event.altKey && !event.metaKey) { | |
1896 | switch (key) { | |
1897 | case 33: /* Page Up */ this.scrollBack(); return; | |
1898 | case 34: /* Page Down */ this.scrollFore(); return; | |
1899 | default: break; | |
1900 | } | |
1901 | } | |
1902 | if (ch == undefined) { | |
1903 | switch (key) { | |
1904 | case 8: /* Backspace */ ch = '\u007f'; break; | |
1905 | case 9: /* Tab */ ch = '\u0009'; break; | |
1906 | case 10: /* Return */ ch = '\u000A'; break; | |
1907 | case 13: /* Enter */ ch = this.crLfMode ? | |
bb335b40 | 1908 | '\r\n' : '\r'; break; |
7460295f MG |
1909 | case 16: /* Shift */ return; |
1910 | case 17: /* Ctrl */ return; | |
1911 | case 18: /* Alt */ return; | |
1912 | case 19: /* Break */ return; | |
1913 | case 20: /* Caps Lock */ return; | |
1914 | case 27: /* Escape */ ch = '\u001B'; break; | |
1915 | case 33: /* Page Up */ ch = '\u001B[5~'; break; | |
1916 | case 34: /* Page Down */ ch = '\u001B[6~'; break; | |
1917 | case 35: /* End */ ch = '\u001BOF'; break; | |
1918 | case 36: /* Home */ ch = '\u001BOH'; break; | |
1919 | case 37: /* Left */ ch = this.cursorKeyMode ? | |
1920 | '\u001BOD' : '\u001B[D'; break; | |
1921 | case 38: /* Up */ ch = this.cursorKeyMode ? | |
1922 | '\u001BOA' : '\u001B[A'; break; | |
1923 | case 39: /* Right */ ch = this.cursorKeyMode ? | |
1924 | '\u001BOC' : '\u001B[C'; break; | |
1925 | case 40: /* Down */ ch = this.cursorKeyMode ? | |
1926 | '\u001BOB' : '\u001B[B'; break; | |
1927 | case 45: /* Insert */ ch = '\u001B[2~'; break; | |
1928 | case 46: /* Delete */ ch = '\u001B[3~'; break; | |
1929 | case 91: /* Left Window */ return; | |
1930 | case 92: /* Right Window */ return; | |
1931 | case 93: /* Select */ return; | |
1932 | case 96: /* 0 */ ch = '0'; break; | |
1933 | case 97: /* 1 */ ch = '1'; break; | |
1934 | case 98: /* 2 */ ch = '2'; break; | |
1935 | case 99: /* 3 */ ch = '3'; break; | |
1936 | case 100: /* 4 */ ch = '4'; break; | |
1937 | case 101: /* 5 */ ch = '5'; break; | |
1938 | case 102: /* 6 */ ch = '6'; break; | |
1939 | case 103: /* 7 */ ch = '7'; break; | |
1940 | case 104: /* 8 */ ch = '8'; break; | |
1941 | case 105: /* 9 */ ch = '9'; break; | |
1942 | case 106: /* * */ ch = '*'; break; | |
1943 | case 107: /* + */ ch = '+'; break; | |
1944 | case 109: /* - */ ch = '-'; break; | |
1945 | case 110: /* . */ ch = '.'; break; | |
1946 | case 111: /* / */ ch = '/'; break; | |
1947 | case 112: /* F1 */ ch = '\u001BOP'; break; | |
1948 | case 113: /* F2 */ ch = '\u001BOQ'; break; | |
1949 | case 114: /* F3 */ ch = '\u001BOR'; break; | |
1950 | case 115: /* F4 */ ch = '\u001BOS'; break; | |
1951 | case 116: /* F5 */ ch = '\u001B[15~'; break; | |
1952 | case 117: /* F6 */ ch = '\u001B[17~'; break; | |
1953 | case 118: /* F7 */ ch = '\u001B[18~'; break; | |
1954 | case 119: /* F8 */ ch = '\u001B[19~'; break; | |
1955 | case 120: /* F9 */ ch = '\u001B[20~'; break; | |
1956 | case 121: /* F10 */ ch = '\u001B[21~'; break; | |
1957 | case 122: /* F11 */ ch = '\u001B[23~'; break; | |
1958 | case 123: /* F12 */ ch = '\u001B[24~'; break; | |
1959 | case 144: /* Num Lock */ return; | |
1960 | case 145: /* Scroll Lock */ return; | |
1961 | default: return; | |
1962 | } | |
1963 | this.scrollable.scrollTop = this.numScrollbackLines * | |
1964 | this.cursorHeight + 1; | |
1965 | } | |
1966 | } | |
1967 | ||
1968 | // "ch" now contains the sequence of keycodes to send. But we might still | |
1969 | // have to apply the effects of modifier keys. | |
1970 | if (event.shiftKey || event.ctrlKey || event.altKey || event.metaKey) { | |
1971 | var start, digit, part1, part2; | |
1972 | if ((start = ch.substr(0, 2)) == '\u001B[') { | |
1973 | for (part1 = start; | |
1974 | part1.length < ch.length && | |
1975 | (digit = ch.charCodeAt(part1.length)) >= 48 && digit <= 57; ) { | |
1976 | part1 = ch.substr(0, part1.length + 1); | |
1977 | } | |
1978 | part2 = ch.substr(part1.length); | |
1979 | if (part1.length > 2) { | |
1980 | part1 += ';'; | |
1981 | } | |
1982 | } else if (start == '\u001BO') { | |
1983 | part1 = start; | |
1984 | part2 = ch.substr(2); | |
1985 | } | |
1986 | if (part1 != undefined) { | |
1987 | ch = part1 + | |
1988 | ((event.shiftKey ? 1 : 0) + | |
1989 | (event.altKey|event.metaKey ? 2 : 0) + | |
1990 | (event.ctrlKey ? 4 : 0)) + | |
1991 | part2; | |
1992 | } else if (ch.length == 1 && (event.altKey || event.metaKey)) { | |
1993 | ch = '\u001B' + ch; | |
1994 | } | |
1995 | } | |
1996 | ||
1997 | if (this.menu.style.visibility == 'hidden') { | |
1998 | this.keysPressed(ch); | |
1999 | } | |
2000 | }; | |
2001 | ||
2002 | VT100.prototype.inspect = function(o, d) { | |
2003 | if (d == undefined) { | |
a7164199 | 2004 | d = 0; |
7460295f | 2005 | } |
a7164199 | 2006 | var rc = ''; |
7460295f | 2007 | if (typeof o == 'object' && ++d < 2) { |
a7164199 | 2008 | rc = '[\r\n'; |
7460295f | 2009 | for (i in o) { |
a7164199 | 2010 | rc += this.spaces(d * 2) + i + ' -> '; |
7460295f | 2011 | try { |
a7164199 | 2012 | rc += this.inspect(o[i], d); |
7460295f | 2013 | } catch (e) { |
a7164199 | 2014 | rc += '?' + '?' + '?\r\n'; |
7460295f MG |
2015 | } |
2016 | } | |
a7164199 | 2017 | rc += ']\r\n'; |
7460295f | 2018 | } else { |
a7164199 | 2019 | rc += ('' + o).replace(/\n/g, ' ').replace(/ +/g,' ') + '\r\n'; |
7460295f | 2020 | } |
a7164199 | 2021 | return rc; |
7460295f MG |
2022 | }; |
2023 | ||
2024 | VT100.prototype.checkComposedKeys = function(event) { | |
2025 | // Composed keys (at least on Linux) do not generate normal events. | |
2026 | // Instead, they get entered into the text field. We normally catch | |
2027 | // this on the next keyup event. | |
2028 | var s = this.input.value; | |
2029 | if (s.length) { | |
2030 | this.input.value = ''; | |
2031 | if (this.menu.style.visibility == 'hidden') { | |
2032 | this.keysPressed(s); | |
2033 | } | |
2034 | } | |
2035 | }; | |
2036 | ||
2037 | VT100.prototype.fixEvent = function(event) { | |
0cf0bd3d MG |
2038 | // Some browsers report AltGR as a combination of ALT and CTRL. As AltGr |
2039 | // is used as a second-level selector, clear the modifier bits before | |
2040 | // handling the event. | |
2041 | if (event.ctrlKey && event.altKey) { | |
2042 | var fake = [ ]; | |
2043 | fake.charCode = event.charCode; | |
2044 | fake.keyCode = event.keyCode; | |
2045 | fake.ctrlKey = false; | |
2046 | fake.shiftKey = event.shiftKey; | |
2047 | fake.altKey = false; | |
2048 | fake.metaKey = event.metaKey; | |
2049 | return fake; | |
2050 | } | |
2051 | ||
7460295f MG |
2052 | // Some browsers fail to translate keys, if both shift and alt/meta is |
2053 | // pressed at the same time. We try to translate those cases, but that | |
2054 | // only works for US keyboard layouts. | |
2055 | if (event.shiftKey) { | |
2056 | var u = undefined; | |
2057 | var s = undefined; | |
2058 | switch (this.lastNormalKeyDownEvent.keyCode) { | |
2059 | case 39: /* ' -> " */ u = 39; s = 34; break; | |
2060 | case 44: /* , -> < */ u = 44; s = 60; break; | |
2061 | case 45: /* - -> _ */ u = 45; s = 95; break; | |
2062 | case 46: /* . -> > */ u = 46; s = 62; break; | |
2063 | case 47: /* / -> ? */ u = 47; s = 63; break; | |
2064 | ||
2065 | case 48: /* 0 -> ) */ u = 48; s = 41; break; | |
2066 | case 49: /* 1 -> ! */ u = 49; s = 33; break; | |
2067 | case 50: /* 2 -> @ */ u = 50; s = 64; break; | |
2068 | case 51: /* 3 -> # */ u = 51; s = 35; break; | |
2069 | case 52: /* 4 -> $ */ u = 52; s = 36; break; | |
2070 | case 53: /* 5 -> % */ u = 53; s = 37; break; | |
2071 | case 54: /* 6 -> ^ */ u = 54; s = 94; break; | |
2072 | case 55: /* 7 -> & */ u = 55; s = 38; break; | |
2073 | case 56: /* 8 -> * */ u = 56; s = 42; break; | |
2074 | case 57: /* 9 -> ( */ u = 57; s = 40; break; | |
2075 | ||
2076 | case 59: /* ; -> : */ u = 59; s = 58; break; | |
2077 | case 61: /* = -> + */ u = 61; s = 43; break; | |
2078 | case 91: /* [ -> { */ u = 91; s = 123; break; | |
2079 | case 92: /* \ -> | */ u = 92; s = 124; break; | |
2080 | case 93: /* ] -> } */ u = 93; s = 125; break; | |
2081 | case 96: /* ` -> ~ */ u = 96; s = 126; break; | |
2082 | ||
2083 | case 109: /* - -> _ */ u = 45; s = 95; break; | |
2084 | case 111: /* / -> ? */ u = 47; s = 63; break; | |
2085 | ||
2086 | case 186: /* ; -> : */ u = 59; s = 58; break; | |
2087 | case 187: /* = -> + */ u = 61; s = 43; break; | |
2088 | case 188: /* , -> < */ u = 44; s = 60; break; | |
2089 | case 189: /* - -> _ */ u = 45; s = 95; break; | |
2090 | case 190: /* . -> > */ u = 46; s = 62; break; | |
2091 | case 191: /* / -> ? */ u = 47; s = 63; break; | |
2092 | case 192: /* ` -> ~ */ u = 96; s = 126; break; | |
2093 | case 219: /* [ -> { */ u = 91; s = 123; break; | |
2094 | case 220: /* \ -> | */ u = 92; s = 124; break; | |
2095 | case 221: /* ] -> } */ u = 93; s = 125; break; | |
2096 | case 222: /* ' -> " */ u = 39; s = 34; break; | |
2097 | default: break; | |
2098 | } | |
2099 | if (s && (event.charCode == u || event.charCode == 0)) { | |
2100 | var fake = [ ]; | |
2101 | fake.charCode = s; | |
2102 | fake.keyCode = event.keyCode; | |
2103 | fake.ctrlKey = event.ctrlKey; | |
2104 | fake.shiftKey = event.shiftKey; | |
2105 | fake.altKey = event.altKey; | |
2106 | fake.metaKey = event.metaKey; | |
2107 | return fake; | |
2108 | } | |
2109 | } | |
2110 | return event; | |
2111 | }; | |
2112 | ||
2113 | VT100.prototype.keyDown = function(event) { | |
2114 | this.checkComposedKeys(event); | |
2115 | this.lastKeyPressedEvent = undefined; | |
2116 | this.lastKeyDownEvent = undefined; | |
2117 | this.lastNormalKeyDownEvent = event; | |
2118 | ||
2119 | var asciiKey = | |
2120 | event.keyCode == 32 || | |
2121 | event.keyCode >= 48 && event.keyCode <= 57 || | |
2122 | event.keyCode >= 65 && event.keyCode <= 90; | |
2123 | var alphNumKey = | |
2124 | asciiKey || | |
2125 | event.keyCode >= 96 && event.keyCode <= 105; | |
2126 | var normalKey = | |
2127 | alphNumKey || | |
2128 | event.keyCode == 59 || event.keyCode == 61 || | |
2129 | event.keyCode == 106 || event.keyCode == 107 || | |
2130 | event.keyCode >= 109 && event.keyCode <= 111 || | |
2131 | event.keyCode >= 186 && event.keyCode <= 192 || | |
2132 | event.keyCode >= 219 && event.keyCode <= 222 || | |
86db43f5 | 2133 | event.keyCode == 226 || event.keyCode == 252; |
7460295f MG |
2134 | try { |
2135 | if (navigator.appName == 'Konqueror') { | |
2136 | normalKey |= event.keyCode < 128; | |
2137 | } | |
2138 | } catch (e) { | |
2139 | } | |
2140 | ||
2141 | // We normally prefer to look at keypress events, as they perform the | |
2142 | // translation from keyCode to charCode. This is important, as the | |
2143 | // translation is locale-dependent. | |
2144 | // But for some keys, we must intercept them during the keydown event, | |
2145 | // as they would otherwise get interpreted by the browser. | |
2146 | // Even, when doing all of this, there are some keys that we can never | |
2147 | // intercept. This applies to some of the menu navigation keys in IE. | |
2148 | // In fact, we see them, but we cannot stop IE from seeing them, too. | |
33eb7a7d MG |
2149 | if ((event.charCode || event.keyCode) && |
2150 | ((alphNumKey && (event.ctrlKey || event.altKey || event.metaKey) && | |
0cf0bd3d MG |
2151 | !event.shiftKey && |
2152 | // Some browsers signal AltGR as both CTRL and ALT. Do not try to | |
2153 | // interpret this sequence ourselves, as some keyboard layouts use | |
2154 | // it for second-level layouts. | |
2155 | !(event.ctrlKey && event.altKey)) || | |
33eb7a7d MG |
2156 | this.catchModifiersEarly && normalKey && !alphNumKey && |
2157 | (event.ctrlKey || event.altKey || event.metaKey) || | |
2158 | !normalKey)) { | |
7460295f MG |
2159 | this.lastKeyDownEvent = event; |
2160 | var fake = [ ]; | |
2161 | fake.ctrlKey = event.ctrlKey; | |
2162 | fake.shiftKey = event.shiftKey; | |
2163 | fake.altKey = event.altKey; | |
2164 | fake.metaKey = event.metaKey; | |
2165 | if (asciiKey) { | |
2166 | fake.charCode = event.keyCode; | |
2167 | fake.keyCode = 0; | |
2168 | } else { | |
2169 | fake.charCode = 0; | |
2170 | fake.keyCode = event.keyCode; | |
2171 | if (!alphNumKey && event.shiftKey) { | |
2172 | fake = this.fixEvent(fake); | |
2173 | } | |
2174 | } | |
2175 | ||
2176 | this.handleKey(fake); | |
2177 | this.lastNormalKeyDownEvent = undefined; | |
2178 | ||
2179 | try { | |
2180 | // For non-IE browsers | |
2181 | event.stopPropagation(); | |
2182 | event.preventDefault(); | |
2183 | } catch (e) { | |
2184 | } | |
2185 | try { | |
2186 | // For IE | |
2187 | event.cancelBubble = true; | |
2188 | event.returnValue = false; | |
2189 | event.keyCode = 0; | |
2190 | } catch (e) { | |
2191 | } | |
2192 | ||
2193 | return false; | |
2194 | } | |
2195 | return true; | |
2196 | }; | |
2197 | ||
2198 | VT100.prototype.keyPressed = function(event) { | |
2199 | if (this.lastKeyDownEvent) { | |
2200 | // If we already processed the key on keydown, do not process it | |
2201 | // again here. Ideally, the browser should not even have generated a | |
2202 | // keypress event in this case. But that does not appear to always work. | |
2203 | this.lastKeyDownEvent = undefined; | |
2204 | } else { | |
2205 | this.handleKey(event.altKey || event.metaKey | |
2206 | ? this.fixEvent(event) : event); | |
2207 | } | |
2208 | ||
2209 | try { | |
2210 | // For non-IE browsers | |
2211 | event.preventDefault(); | |
2212 | } catch (e) { | |
2213 | } | |
2214 | ||
2215 | try { | |
2216 | // For IE | |
2217 | event.cancelBubble = true; | |
2218 | event.returnValue = false; | |
2219 | event.keyCode = 0; | |
2220 | } catch (e) { | |
2221 | } | |
2222 | ||
2223 | this.lastNormalKeyDownEvent = undefined; | |
2224 | this.lastKeyPressedEvent = event; | |
2225 | return false; | |
2226 | }; | |
2227 | ||
2228 | VT100.prototype.keyUp = function(event) { | |
2229 | if (this.lastKeyPressedEvent) { | |
2230 | // The compose key on Linux occasionally confuses the browser and keeps | |
2231 | // inserting bogus characters into the input field, even if just a regular | |
2232 | // key has been pressed. Detect this case and drop the bogus characters. | |
2233 | (event.target || | |
2234 | event.srcElement).value = ''; | |
2235 | } else { | |
2236 | // This is usually were we notice that a key has been composed and | |
2237 | // thus failed to generate normal events. | |
2238 | this.checkComposedKeys(event); | |
2239 | ||
2240 | // Some browsers don't report keypress events if ctrl or alt is pressed | |
2241 | // for non-alphanumerical keys. Patch things up for now, but in the | |
2242 | // future we will catch these keys earlier (in the keydown handler). | |
2243 | if (this.lastNormalKeyDownEvent) { | |
2244 | this.catchModifiersEarly = true; | |
2245 | var asciiKey = | |
2246 | event.keyCode == 32 || | |
2247 | event.keyCode >= 48 && event.keyCode <= 57 || | |
2248 | event.keyCode >= 65 && event.keyCode <= 90; | |
2249 | var alphNumKey = | |
2250 | asciiKey || | |
2251 | event.keyCode >= 96 && event.keyCode <= 105; | |
2252 | var normalKey = | |
2253 | alphNumKey || | |
2254 | event.keyCode == 59 || event.keyCode == 61 || | |
2255 | event.keyCode == 106 || event.keyCode == 107 || | |
2256 | event.keyCode >= 109 && event.keyCode <= 111 || | |
2257 | event.keyCode >= 186 && event.keyCode <= 192 || | |
2258 | event.keyCode >= 219 && event.keyCode <= 222 || | |
2259 | event.keyCode == 252; | |
2260 | var fake = [ ]; | |
2261 | fake.ctrlKey = event.ctrlKey; | |
2262 | fake.shiftKey = event.shiftKey; | |
2263 | fake.altKey = event.altKey; | |
2264 | fake.metaKey = event.metaKey; | |
2265 | if (asciiKey) { | |
2266 | fake.charCode = event.keyCode; | |
2267 | fake.keyCode = 0; | |
2268 | } else { | |
2269 | fake.charCode = 0; | |
2270 | fake.keyCode = event.keyCode; | |
2271 | if (!alphNumKey && (event.ctrlKey || event.altKey || event.metaKey)) { | |
2272 | fake = this.fixEvent(fake); | |
2273 | } | |
2274 | } | |
2275 | this.lastNormalKeyDownEvent = undefined; | |
2276 | this.handleKey(fake); | |
2277 | } | |
2278 | } | |
2279 | ||
2280 | try { | |
2281 | // For IE | |
2282 | event.cancelBubble = true; | |
2283 | event.returnValue = false; | |
2284 | event.keyCode = 0; | |
2285 | } catch (e) { | |
2286 | } | |
2287 | ||
2288 | this.lastKeyDownEvent = undefined; | |
2289 | this.lastKeyPressedEvent = undefined; | |
2290 | return false; | |
2291 | }; | |
2292 | ||
2293 | VT100.prototype.animateCursor = function(inactive) { | |
2294 | if (!this.cursorInterval) { | |
2295 | this.cursorInterval = setInterval( | |
2296 | function(vt100) { | |
2297 | return function() { | |
2298 | vt100.animateCursor(); | |
2299 | ||
2300 | // Use this opportunity to check whether the user entered a composed | |
2301 | // key, or whether somebody pasted text into the textfield. | |
2302 | vt100.checkComposedKeys(); | |
2303 | } | |
2304 | }(this), 500); | |
2305 | } | |
2306 | if (inactive != undefined || this.cursor.className != 'inactive') { | |
2307 | if (inactive) { | |
2308 | this.cursor.className = 'inactive'; | |
2309 | } else { | |
2310 | this.cursor.className = this.cursor.className == 'bright' | |
2311 | ? 'dim' : 'bright'; | |
2312 | } | |
2313 | } | |
2314 | }; | |
2315 | ||
2316 | VT100.prototype.blurCursor = function() { | |
2317 | this.animateCursor(true); | |
2318 | }; | |
2319 | ||
2320 | VT100.prototype.focusCursor = function() { | |
2321 | this.animateCursor(false); | |
2322 | }; | |
2323 | ||
2324 | VT100.prototype.flashScreen = function() { | |
2325 | this.isInverted = !this.isInverted; | |
2326 | this.refreshInvertedState(); | |
2327 | this.isInverted = !this.isInverted; | |
2328 | setTimeout(function(vt100) { | |
2329 | return function() { | |
2330 | vt100.refreshInvertedState(); | |
2331 | }; | |
2332 | }(this), 100); | |
2333 | }; | |
2334 | ||
2335 | VT100.prototype.beep = function() { | |
46f2036a | 2336 | if (this.visualBell) { |
7460295f MG |
2337 | this.flashScreen(); |
2338 | } else { | |
2339 | try { | |
2340 | this.beeper.Play(); | |
2341 | } catch (e) { | |
2342 | try { | |
2343 | this.beeper.src = 'beep.wav'; | |
2344 | } catch (e) { | |
2345 | } | |
2346 | } | |
2347 | } | |
2348 | }; | |
2349 | ||
2350 | VT100.prototype.bs = function() { | |
2351 | if (this.cursorX > 0) { | |
2352 | this.gotoXY(this.cursorX - 1, this.cursorY); | |
2353 | this.needWrap = false; | |
2354 | } | |
2355 | }; | |
2356 | ||
2357 | VT100.prototype.ht = function(count) { | |
2358 | if (count == undefined) { | |
2359 | count = 1; | |
2360 | } | |
2361 | var cx = this.cursorX; | |
2362 | while (count-- > 0) { | |
2363 | while (cx++ < this.terminalWidth) { | |
2364 | var tabState = this.userTabStop[cx]; | |
2365 | if (tabState == false) { | |
2366 | // Explicitly cleared tab stop | |
2367 | continue; | |
2368 | } else if (tabState) { | |
2369 | // Explicitly set tab stop | |
2370 | break; | |
2371 | } else { | |
2372 | // Default tab stop at each eighth column | |
2373 | if (cx % 8 == 0) { | |
2374 | break; | |
2375 | } | |
2376 | } | |
2377 | } | |
2378 | } | |
2379 | if (cx > this.terminalWidth - 1) { | |
2380 | cx = this.terminalWidth - 1; | |
2381 | } | |
2382 | if (cx != this.cursorX) { | |
2383 | this.gotoXY(cx, this.cursorY); | |
2384 | } | |
2385 | }; | |
2386 | ||
2387 | VT100.prototype.rt = function(count) { | |
2388 | if (count == undefined) { | |
2389 | count = 1 ; | |
2390 | } | |
2391 | var cx = this.cursorX; | |
2392 | while (count-- > 0) { | |
2393 | while (cx-- > 0) { | |
2394 | var tabState = this.userTabStop[cx]; | |
2395 | if (tabState == false) { | |
2396 | // Explicitly cleared tab stop | |
2397 | continue; | |
2398 | } else if (tabState) { | |
2399 | // Explicitly set tab stop | |
2400 | break; | |
2401 | } else { | |
2402 | // Default tab stop at each eighth column | |
2403 | if (cx % 8 == 0) { | |
2404 | break; | |
2405 | } | |
2406 | } | |
2407 | } | |
2408 | } | |
2409 | if (cx < 0) { | |
2410 | cx = 0; | |
2411 | } | |
2412 | if (cx != this.cursorX) { | |
2413 | this.gotoXY(cx, this.cursorY); | |
2414 | } | |
2415 | }; | |
2416 | ||
2417 | VT100.prototype.cr = function() { | |
2418 | this.gotoXY(0, this.cursorY); | |
2419 | this.needWrap = false; | |
2420 | }; | |
2421 | ||
2422 | VT100.prototype.lf = function(count) { | |
2423 | if (count == undefined) { | |
2424 | count = 1; | |
2425 | } else { | |
2426 | if (count > this.terminalHeight) { | |
2427 | count = this.terminalHeight; | |
2428 | } | |
2429 | if (count < 1) { | |
2430 | count = 1; | |
2431 | } | |
2432 | } | |
2433 | while (count-- > 0) { | |
2434 | if (this.cursorY == this.bottom - 1) { | |
2435 | this.scrollRegion(0, this.top + 1, | |
2436 | this.terminalWidth, this.bottom - this.top - 1, | |
2437 | 0, -1, this.style); | |
2438 | offset = undefined; | |
2439 | } else if (this.cursorY < this.terminalHeight - 1) { | |
2440 | this.gotoXY(this.cursorX, this.cursorY + 1); | |
2441 | } | |
2442 | } | |
2443 | }; | |
2444 | ||
2445 | VT100.prototype.ri = function(count) { | |
2446 | if (count == undefined) { | |
2447 | count = 1; | |
2448 | } else { | |
2449 | if (count > this.terminalHeight) { | |
2450 | count = this.terminalHeight; | |
2451 | } | |
2452 | if (count < 1) { | |
2453 | count = 1; | |
2454 | } | |
2455 | } | |
2456 | while (count-- > 0) { | |
2457 | if (this.cursorY == this.top) { | |
2458 | this.scrollRegion(0, this.top, | |
2459 | this.terminalWidth, this.bottom - this.top - 1, | |
2460 | 0, 1, this.style); | |
2461 | } else if (this.cursorY > 0) { | |
2462 | this.gotoXY(this.cursorX, this.cursorY - 1); | |
2463 | } | |
2464 | } | |
2465 | this.needWrap = false; | |
2466 | }; | |
2467 | ||
2468 | VT100.prototype.respondID = function() { | |
2469 | this.respondString += '\u001B[?6c'; | |
2470 | }; | |
2471 | ||
2472 | VT100.prototype.respondSecondaryDA = function() { | |
2473 | this.respondString += '\u001B[>0;0;0c'; | |
2474 | }; | |
2475 | ||
2476 | VT100.prototype.updateStyle = function() { | |
2477 | var style = ''; | |
c27d0db9 | 2478 | if (this.attr & 0x0200 /* ATTR_UNDERLINE */) { |
7460295f MG |
2479 | style += 'text-decoration:underline;'; |
2480 | } | |
2481 | var bg = (this.attr >> 4) & 0xF; | |
2482 | var fg = this.attr & 0xF; | |
c27d0db9 | 2483 | if (this.attr & 0x0100 /* ATTR_REVERSE */) { |
7460295f MG |
2484 | var tmp = bg; |
2485 | bg = fg; | |
2486 | fg = tmp; | |
2487 | } | |
c27d0db9 | 2488 | if ((this.attr & (0x0100 /* ATTR_REVERSE */ | 0x0400 /* ATTR_DIM */)) == 0x0400 /* ATTR_DIM */) { |
7460295f | 2489 | fg = 8; // Dark grey |
c27d0db9 | 2490 | } else if (this.attr & 0x0800 /* ATTR_BRIGHT */) { |
7460295f MG |
2491 | fg |= 8; |
2492 | } | |
c27d0db9 | 2493 | if (this.attr & 0x1000 /* ATTR_BLINK */) { |
7460295f MG |
2494 | bg ^= 8; |
2495 | } | |
2496 | // Make some readability enhancements. Most notably, disallow identical | |
2497 | // background and foreground colors. | |
2498 | if (bg == fg) { | |
2499 | if ((fg ^= 8) == 7) { | |
2500 | fg = 8; | |
2501 | } | |
2502 | } | |
2503 | // And disallow bright colors on a light-grey background. | |
2504 | if (bg == 7 && fg >= 8) { | |
2505 | if ((fg -= 8) == 7) { | |
2506 | fg = 8; | |
2507 | } | |
2508 | } | |
2509 | ||
2510 | if (fg != 0) { | |
2511 | style += 'color:' + this.ansi[fg] + ';'; | |
2512 | } | |
2513 | if (bg != 15) { | |
2514 | style += 'background-color:' + this.ansi[bg] + ';'; | |
2515 | } | |
2516 | this.attributeHelper.cssText = style; | |
2517 | this.style = this.attributeHelper.cssText; | |
2518 | }; | |
2519 | ||
2520 | VT100.prototype.setAttrColors = function(attr) { | |
2521 | if (attr != this.attr) { | |
2522 | this.attr = attr; | |
2523 | this.updateStyle(); | |
2524 | } | |
2525 | }; | |
2526 | ||
2527 | VT100.prototype.saveCursor = function() { | |
2528 | this.savedX[this.currentScreen] = this.cursorX; | |
2529 | this.savedY[this.currentScreen] = this.cursorY; | |
2530 | this.savedAttr[this.currentScreen] = this.attr; | |
2531 | this.savedUseGMap = this.useGMap; | |
2532 | for (var i = 0; i < 4; i++) { | |
2533 | this.savedGMap[i] = this.GMap[i]; | |
2534 | } | |
2535 | this.savedValid[this.currentScreen] = true; | |
2536 | }; | |
2537 | ||
2538 | VT100.prototype.restoreCursor = function() { | |
2539 | if (!this.savedValid[this.currentScreen]) { | |
2540 | return; | |
2541 | } | |
2542 | this.attr = this.savedAttr[this.currentScreen]; | |
2543 | this.updateStyle(); | |
2544 | this.useGMap = this.savedUseGMap; | |
2545 | for (var i = 0; i < 4; i++) { | |
2546 | this.GMap[i] = this.savedGMap[i]; | |
2547 | } | |
2548 | this.translate = this.GMap[this.useGMap]; | |
2549 | this.needWrap = false; | |
2550 | this.gotoXY(this.savedX[this.currentScreen], | |
2551 | this.savedY[this.currentScreen]); | |
2552 | }; | |
2553 | ||
2554 | VT100.prototype.setMode = function(state) { | |
2555 | for (var i = 0; i <= this.npar; i++) { | |
2556 | if (this.isQuestionMark) { | |
2557 | switch (this.par[i]) { | |
2558 | case 1: this.cursorKeyMode = state; break; | |
2559 | case 3: /* Toggling between 80/132 mode is not implemented */ break; | |
2560 | case 5: this.isInverted = state; this.refreshInvertedState(); break; | |
2561 | case 6: this.offsetMode = state; break; | |
2562 | case 7: this.autoWrapMode = state; break; | |
2563 | case 1000: | |
2564 | case 9: this.mouseReporting = state; break; | |
57e76178 MG |
2565 | case 25: this.cursorNeedsShowing = state; |
2566 | if (state) { this.showCursor(); } | |
7460295f | 2567 | else { this.hideCursor(); } break; |
bb335b40 MG |
2568 | case 1047: |
2569 | case 1049: | |
7460295f MG |
2570 | case 47: this.enableAlternateScreen(state); break; |
2571 | default: break; | |
2572 | } | |
2573 | } else { | |
2574 | switch (this.par[i]) { | |
2575 | case 3: this.dispCtrl = state; break; | |
2576 | case 4: this.insertMode = state; break; | |
2577 | case 20:this.crLfMode = state; break; | |
2578 | default: break; | |
2579 | } | |
2580 | } | |
2581 | } | |
2582 | }; | |
2583 | ||
2584 | VT100.prototype.statusReport = function() { | |
2585 | // Ready and operational. | |
2586 | this.respondString += '\u001B[0n'; | |
2587 | }; | |
2588 | ||
2589 | VT100.prototype.cursorReport = function() { | |
2590 | this.respondString += '\u001B[' + | |
2591 | (this.cursorY + (this.offsetMode ? this.top + 1 : 1)) + | |
2592 | ';' + | |
2593 | (this.cursorX + 1) + | |
2594 | 'R'; | |
2595 | }; | |
2596 | ||
2597 | VT100.prototype.setCursorAttr = function(setAttr, xorAttr) { | |
2598 | // Changing of cursor color is not implemented. | |
2599 | }; | |
2600 | ||
2601 | VT100.prototype.csiAt = function(number) { | |
2602 | // Insert spaces | |
2603 | if (number == 0) { | |
2604 | number = 1; | |
2605 | } | |
2606 | if (number > this.terminalWidth - this.cursorX) { | |
2607 | number = this.terminalWidth - this.cursorX; | |
2608 | } | |
2609 | this.scrollRegion(this.cursorX, this.cursorY, | |
2610 | this.terminalWidth - this.cursorX - number, 1, | |
2611 | number, 0, this.style); | |
2612 | this.needWrap = false; | |
2613 | }; | |
2614 | ||
2615 | VT100.prototype.csiJ = function(number) { | |
2616 | switch (number) { | |
2617 | case 0: // Erase from cursor to end of display | |
2618 | this.clearRegion(this.cursorX, this.cursorY, | |
2619 | this.terminalWidth - this.cursorX, 1, this.style); | |
2620 | if (this.cursorY < this.terminalHeight-2) { | |
2621 | this.clearRegion(0, this.cursorY+1, | |
2622 | this.terminalWidth, this.terminalHeight-this.cursorY-1, | |
2623 | this.style); | |
2624 | } | |
2625 | break; | |
2626 | case 1: // Erase from start to cursor | |
2627 | if (this.cursorY > 0) { | |
2628 | this.clearRegion(0, 0, | |
2629 | this.terminalWidth, this.cursorY, this.style); | |
2630 | } | |
2631 | this.clearRegion(0, this.cursorY, this.cursorX + 1, 1, this.style); | |
2632 | break; | |
2633 | case 2: // Erase whole display | |
2634 | this.clearRegion(0, 0, this.terminalWidth, this.terminalHeight,this.style); | |
2635 | break; | |
2636 | default: | |
2637 | return; | |
2638 | } | |
2639 | needWrap = false; | |
2640 | }; | |
2641 | ||
2642 | VT100.prototype.csiK = function(number) { | |
2643 | switch (number) { | |
2644 | case 0: // Erase from cursor to end of line | |
2645 | this.clearRegion(this.cursorX, this.cursorY, | |
2646 | this.terminalWidth - this.cursorX, 1, this.style); | |
2647 | break; | |
2648 | case 1: // Erase from start of line to cursor | |
2649 | this.clearRegion(0, this.cursorY, this.cursorX + 1, 1, this.style); | |
2650 | break; | |
2651 | case 2: // Erase whole line | |
2652 | this.clearRegion(0, this.cursorY, this.terminalWidth, 1, this.style); | |
2653 | break; | |
2654 | default: | |
2655 | return; | |
2656 | } | |
2657 | needWrap = false; | |
2658 | }; | |
2659 | ||
2660 | VT100.prototype.csiL = function(number) { | |
2661 | // Open line by inserting blank line(s) | |
2662 | if (this.cursorY >= this.bottom) { | |
2663 | return; | |
2664 | } | |
2665 | if (number == 0) { | |
2666 | number = 1; | |
2667 | } | |
2668 | if (number > this.bottom - this.cursorY) { | |
2669 | number = this.bottom - this.cursorY; | |
2670 | } | |
2671 | this.scrollRegion(0, this.cursorY, | |
2672 | this.terminalWidth, this.bottom - this.cursorY - number, | |
2673 | 0, number, this.style); | |
2674 | needWrap = false; | |
2675 | }; | |
2676 | ||
2677 | VT100.prototype.csiM = function(number) { | |
2678 | // Delete line(s), scrolling up the bottom of the screen. | |
2679 | if (this.cursorY >= this.bottom) { | |
2680 | return; | |
2681 | } | |
2682 | if (number == 0) { | |
2683 | number = 1; | |
2684 | } | |
2685 | if (number > this.bottom - this.cursorY) { | |
2686 | number = bottom - cursorY; | |
2687 | } | |
2688 | this.scrollRegion(0, this.cursorY + number, | |
2689 | this.terminalWidth, this.bottom - this.cursorY - number, | |
2690 | 0, -number, this.style); | |
2691 | needWrap = false; | |
2692 | }; | |
2693 | ||
2694 | VT100.prototype.csim = function() { | |
2695 | for (var i = 0; i <= this.npar; i++) { | |
2696 | switch (this.par[i]) { | |
c27d0db9 MG |
2697 | case 0: this.attr = 0x00F0 /* ATTR_DEFAULT */; break; |
2698 | case 1: this.attr = (this.attr & ~0x0400 /* ATTR_DIM */)|0x0800 /* ATTR_BRIGHT */; break; | |
2699 | case 2: this.attr = (this.attr & ~0x0800 /* ATTR_BRIGHT */)|0x0400 /* ATTR_DIM */; break; | |
2700 | case 4: this.attr |= 0x0200 /* ATTR_UNDERLINE */; break; | |
2701 | case 5: this.attr |= 0x1000 /* ATTR_BLINK */; break; | |
2702 | case 7: this.attr |= 0x0100 /* ATTR_REVERSE */; break; | |
7460295f MG |
2703 | case 10: |
2704 | this.translate = this.GMap[this.useGMap]; | |
2705 | this.dispCtrl = false; | |
2706 | this.toggleMeta = false; | |
2707 | break; | |
2708 | case 11: | |
2709 | this.translate = this.CodePage437Map; | |
2710 | this.dispCtrl = true; | |
2711 | this.toggleMeta = false; | |
2712 | break; | |
2713 | case 12: | |
2714 | this.translate = this.CodePage437Map; | |
2715 | this.dispCtrl = true; | |
2716 | this.toggleMeta = true; | |
2717 | break; | |
2718 | case 21: | |
c27d0db9 MG |
2719 | case 22: this.attr &= ~(0x0800 /* ATTR_BRIGHT */|0x0400 /* ATTR_DIM */); break; |
2720 | case 24: this.attr &= ~ 0x0200 /* ATTR_UNDERLINE */; break; | |
2721 | case 25: this.attr &= ~ 0x1000 /* ATTR_BLINK */; break; | |
2722 | case 27: this.attr &= ~ 0x0100 /* ATTR_REVERSE */; break; | |
2723 | case 38: this.attr = (this.attr & ~(0x0400 /* ATTR_DIM */|0x0800 /* ATTR_BRIGHT */|0x0F))| | |
2724 | 0x0200 /* ATTR_UNDERLINE */; break; | |
2725 | case 39: this.attr &= ~(0x0400 /* ATTR_DIM */|0x0800 /* ATTR_BRIGHT */|0x0200 /* ATTR_UNDERLINE */|0x0F); break; | |
7460295f MG |
2726 | case 49: this.attr |= 0xF0; break; |
2727 | default: | |
2728 | if (this.par[i] >= 30 && this.par[i] <= 37) { | |
2729 | var fg = this.par[i] - 30; | |
2730 | this.attr = (this.attr & ~0x0F) | fg; | |
2731 | } else if (this.par[i] >= 40 && this.par[i] <= 47) { | |
2732 | var bg = this.par[i] - 40; | |
2733 | this.attr = (this.attr & ~0xF0) | (bg << 4); | |
2734 | } | |
2735 | break; | |
2736 | } | |
2737 | } | |
2738 | this.updateStyle(); | |
2739 | }; | |
2740 | ||
2741 | VT100.prototype.csiP = function(number) { | |
2742 | // Delete character(s) following cursor | |
2743 | if (number == 0) { | |
2744 | number = 1; | |
2745 | } | |
2746 | if (number > this.terminalWidth - this.cursorX) { | |
2747 | number = this.terminalWidth - this.cursorX; | |
2748 | } | |
2749 | this.scrollRegion(this.cursorX + number, this.cursorY, | |
2750 | this.terminalWidth - this.cursorX - number, 1, | |
2751 | -number, 0, this.style); | |
2752 | needWrap = false; | |
2753 | }; | |
2754 | ||
2755 | VT100.prototype.csiX = function(number) { | |
2756 | // Clear characters following cursor | |
2757 | if (number == 0) { | |
2758 | number++; | |
2759 | } | |
2760 | if (number > this.terminalWidth - this.cursorX) { | |
2761 | number = this.terminalWidth - this.cursorX; | |
2762 | } | |
2763 | this.clearRegion(this.cursorX, this.cursorY, number, 1, this.style); | |
2764 | needWrap = false; | |
2765 | }; | |
2766 | ||
2767 | VT100.prototype.settermCommand = function() { | |
2768 | // Setterm commands are not implemented | |
2769 | }; | |
2770 | ||
2771 | VT100.prototype.doControl = function(ch) { | |
2772 | var lineBuf = ''; | |
2773 | switch (ch) { | |
2774 | case 0x00: /* ignored */ break; | |
2775 | case 0x08: this.bs(); break; | |
2776 | case 0x09: this.ht(); break; | |
2777 | case 0x0A: | |
2778 | case 0x0B: | |
2779 | case 0x0C: | |
2780 | case 0x84: this.lf(); if (!this.crLfMode) break; | |
2781 | case 0x0D: this.cr(); break; | |
2782 | case 0x85: this.cr(); this.lf(); break; | |
2783 | case 0x0E: this.useGMap = 1; | |
2784 | this.translate = this.GMap[1]; | |
2785 | this.dispCtrl = true; break; | |
2786 | case 0x0F: this.useGMap = 0; | |
5db428be | 2787 | this.translate = this.GMap[0]; |
7460295f MG |
2788 | this.dispCtrl = false; break; |
2789 | case 0x18: | |
c27d0db9 MG |
2790 | case 0x1A: this.isEsc = 0 /* ESnormal */; break; |
2791 | case 0x1B: this.isEsc = 1 /* ESesc */; break; | |
7460295f MG |
2792 | case 0x7F: /* ignored */ break; |
2793 | case 0x88: this.userTabStop[this.cursorX] = true; break; | |
2794 | case 0x8D: this.ri(); break; | |
c27d0db9 MG |
2795 | case 0x8E: this.isEsc = 18 /* ESss2 */; break; |
2796 | case 0x8F: this.isEsc = 19 /* ESss3 */; break; | |
7460295f | 2797 | case 0x9A: this.respondID(); break; |
c27d0db9 MG |
2798 | case 0x9B: this.isEsc = 2 /* ESsquare */; break; |
2799 | case 0x07: if (this.isEsc != 17 /* ESstatus */) { | |
7460295f MG |
2800 | this.beep(); break; |
2801 | } | |
2802 | /* fall thru */ | |
2803 | default: switch (this.isEsc) { | |
c27d0db9 MG |
2804 | case 1 /* ESesc */: |
2805 | this.isEsc = 0 /* ESnormal */; | |
7460295f | 2806 | switch (ch) { |
c27d0db9 MG |
2807 | /*%*/ case 0x25: this.isEsc = 13 /* ESpercent */; break; |
2808 | /*(*/ case 0x28: this.isEsc = 8 /* ESsetG0 */; break; | |
7460295f | 2809 | /*-*/ case 0x2D: |
c27d0db9 | 2810 | /*)*/ case 0x29: this.isEsc = 9 /* ESsetG1 */; break; |
7460295f | 2811 | /*.*/ case 0x2E: |
c27d0db9 | 2812 | /***/ case 0x2A: this.isEsc = 10 /* ESsetG2 */; break; |
7460295f | 2813 | /*/*/ case 0x2F: |
c27d0db9 MG |
2814 | /*+*/ case 0x2B: this.isEsc = 11 /* ESsetG3 */; break; |
2815 | /*#*/ case 0x23: this.isEsc = 7 /* EShash */; break; | |
7460295f MG |
2816 | /*7*/ case 0x37: this.saveCursor(); break; |
2817 | /*8*/ case 0x38: this.restoreCursor(); break; | |
2818 | /*>*/ case 0x3E: this.applKeyMode = false; break; | |
2819 | /*=*/ case 0x3D: this.applKeyMode = true; break; | |
2820 | /*D*/ case 0x44: this.lf(); break; | |
2821 | /*E*/ case 0x45: this.cr(); this.lf(); break; | |
2822 | /*M*/ case 0x4D: this.ri(); break; | |
c27d0db9 MG |
2823 | /*N*/ case 0x4E: this.isEsc = 18 /* ESss2 */; break; |
2824 | /*O*/ case 0x4F: this.isEsc = 19 /* ESss3 */; break; | |
7460295f MG |
2825 | /*H*/ case 0x48: this.userTabStop[this.cursorX] = true; break; |
2826 | /*Z*/ case 0x5A: this.respondID(); break; | |
c27d0db9 MG |
2827 | /*[*/ case 0x5B: this.isEsc = 2 /* ESsquare */; break; |
2828 | /*]*/ case 0x5D: this.isEsc = 15 /* ESnonstd */; break; | |
7460295f MG |
2829 | /*c*/ case 0x63: this.reset(); break; |
2830 | /*g*/ case 0x67: this.flashScreen(); break; | |
2831 | default: break; | |
2832 | } | |
2833 | break; | |
c27d0db9 | 2834 | case 15 /* ESnonstd */: |
7460295f MG |
2835 | switch (ch) { |
2836 | /*0*/ case 0x30: | |
2837 | /*1*/ case 0x31: | |
c27d0db9 | 2838 | /*2*/ case 0x32: this.statusString = ''; this.isEsc = 17 /* ESstatus */; break; |
7460295f | 2839 | /*P*/ case 0x50: this.npar = 0; this.par = [ 0, 0, 0, 0, 0, 0, 0 ]; |
c27d0db9 | 2840 | this.isEsc = 16 /* ESpalette */; break; |
7460295f | 2841 | /*R*/ case 0x52: // Palette support is not implemented |
c27d0db9 MG |
2842 | this.isEsc = 0 /* ESnormal */; break; |
2843 | default: this.isEsc = 0 /* ESnormal */; break; | |
7460295f MG |
2844 | } |
2845 | break; | |
c27d0db9 | 2846 | case 16 /* ESpalette */: |
7460295f MG |
2847 | if ((ch >= 0x30 /*0*/ && ch <= 0x39 /*9*/) || |
2848 | (ch >= 0x41 /*A*/ && ch <= 0x46 /*F*/) || | |
2849 | (ch >= 0x61 /*a*/ && ch <= 0x66 /*f*/)) { | |
2850 | this.par[this.npar++] = ch > 0x39 /*9*/ ? (ch & 0xDF) - 55 | |
2851 | : (ch & 0xF); | |
2852 | if (this.npar == 7) { | |
2853 | // Palette support is not implemented | |
c27d0db9 | 2854 | this.isEsc = 0 /* ESnormal */; |
7460295f MG |
2855 | } |
2856 | } else { | |
c27d0db9 | 2857 | this.isEsc = 0 /* ESnormal */; |
7460295f MG |
2858 | } |
2859 | break; | |
c27d0db9 | 2860 | case 2 /* ESsquare */: |
7460295f MG |
2861 | this.npar = 0; |
2862 | this.par = [ 0, 0, 0, 0, 0, 0, 0, 0, | |
2863 | 0, 0, 0, 0, 0, 0, 0, 0 ]; | |
c27d0db9 | 2864 | this.isEsc = 3 /* ESgetpars */; |
7460295f | 2865 | /*[*/ if (ch == 0x5B) { // Function key |
c27d0db9 | 2866 | this.isEsc = 6 /* ESfunckey */; |
7460295f MG |
2867 | break; |
2868 | } else { | |
2869 | /*?*/ this.isQuestionMark = ch == 0x3F; | |
2870 | if (this.isQuestionMark) { | |
2871 | break; | |
2872 | } | |
2873 | } | |
2874 | // Fall through | |
c27d0db9 MG |
2875 | case 5 /* ESdeviceattr */: |
2876 | case 3 /* ESgetpars */: | |
7460295f MG |
2877 | /*;*/ if (ch == 0x3B) { |
2878 | this.npar++; | |
2879 | break; | |
2880 | } else if (ch >= 0x30 /*0*/ && ch <= 0x39 /*9*/) { | |
2881 | var par = this.par[this.npar]; | |
2882 | if (par == undefined) { | |
2883 | par = 0; | |
2884 | } | |
2885 | this.par[this.npar] = 10*par + (ch & 0xF); | |
2886 | break; | |
c27d0db9 | 2887 | } else if (this.isEsc == 5 /* ESdeviceattr */) { |
7460295f MG |
2888 | switch (ch) { |
2889 | /*c*/ case 0x63: if (this.par[0] == 0) this.respondSecondaryDA(); break; | |
2890 | /*m*/ case 0x6D: /* (re)set key modifier resource values */ break; | |
2891 | /*n*/ case 0x6E: /* disable key modifier resource values */ break; | |
2892 | /*p*/ case 0x70: /* set pointer mode resource value */ break; | |
2893 | default: break; | |
2894 | } | |
c27d0db9 | 2895 | this.isEsc = 0 /* ESnormal */; |
7460295f MG |
2896 | break; |
2897 | } else { | |
c27d0db9 | 2898 | this.isEsc = 4 /* ESgotpars */; |
7460295f MG |
2899 | } |
2900 | // Fall through | |
c27d0db9 MG |
2901 | case 4 /* ESgotpars */: |
2902 | this.isEsc = 0 /* ESnormal */; | |
7460295f MG |
2903 | if (this.isQuestionMark) { |
2904 | switch (ch) { | |
2905 | /*h*/ case 0x68: this.setMode(true); break; | |
2906 | /*l*/ case 0x6C: this.setMode(false); break; | |
2907 | /*c*/ case 0x63: this.setCursorAttr(this.par[2], this.par[1]); break; | |
2908 | default: break; | |
2909 | } | |
2910 | this.isQuestionMark = false; | |
2911 | break; | |
2912 | } | |
2913 | switch (ch) { | |
c27d0db9 MG |
2914 | /*!*/ case 0x21: this.isEsc = 12 /* ESbang */; break; |
2915 | /*>*/ case 0x3E: if (!this.npar) this.isEsc = 5 /* ESdeviceattr */; break; | |
7460295f MG |
2916 | /*G*/ case 0x47: |
2917 | /*`*/ case 0x60: this.gotoXY(this.par[0] - 1, this.cursorY); break; | |
2918 | /*A*/ case 0x41: this.gotoXY(this.cursorX, | |
2919 | this.cursorY - (this.par[0] ? this.par[0] : 1)); | |
2920 | break; | |
2921 | /*B*/ case 0x42: | |
2922 | /*e*/ case 0x65: this.gotoXY(this.cursorX, | |
2923 | this.cursorY + (this.par[0] ? this.par[0] : 1)); | |
2924 | break; | |
2925 | /*C*/ case 0x43: | |
2926 | /*a*/ case 0x61: this.gotoXY(this.cursorX + (this.par[0] ? this.par[0] : 1), | |
2927 | this.cursorY); break; | |
2928 | /*D*/ case 0x44: this.gotoXY(this.cursorX - (this.par[0] ? this.par[0] : 1), | |
2929 | this.cursorY); break; | |
2930 | /*E*/ case 0x45: this.gotoXY(0, this.cursorY + (this.par[0] ? this.par[0] :1)); | |
2931 | break; | |
2932 | /*F*/ case 0x46: this.gotoXY(0, this.cursorY - (this.par[0] ? this.par[0] :1)); | |
2933 | break; | |
2934 | /*d*/ case 0x64: this.gotoXaY(this.cursorX, this.par[0] - 1); break; | |
2935 | /*H*/ case 0x48: | |
2936 | /*f*/ case 0x66: this.gotoXaY(this.par[1] - 1, this.par[0] - 1); break; | |
2937 | /*I*/ case 0x49: this.ht(this.par[0] ? this.par[0] : 1); break; | |
2938 | /*@*/ case 0x40: this.csiAt(this.par[0]); break; | |
2939 | /*J*/ case 0x4A: this.csiJ(this.par[0]); break; | |
2940 | /*K*/ case 0x4B: this.csiK(this.par[0]); break; | |
2941 | /*L*/ case 0x4C: this.csiL(this.par[0]); break; | |
2942 | /*M*/ case 0x4D: this.csiM(this.par[0]); break; | |
2943 | /*m*/ case 0x6D: this.csim(); break; | |
2944 | /*P*/ case 0x50: this.csiP(this.par[0]); break; | |
2945 | /*X*/ case 0x58: this.csiX(this.par[0]); break; | |
2946 | /*S*/ case 0x53: this.lf(this.par[0] ? this.par[0] : 1); break; | |
2947 | /*T*/ case 0x54: this.ri(this.par[0] ? this.par[0] : 1); break; | |
2948 | /*c*/ case 0x63: if (!this.par[0]) this.respondID(); break; | |
2949 | /*g*/ case 0x67: if (this.par[0] == 0) { | |
2950 | this.userTabStop[this.cursorX] = false; | |
2951 | } else if (this.par[0] == 2 || this.par[0] == 3) { | |
2952 | this.userTabStop = [ ]; | |
2953 | for (var i = 0; i < this.terminalWidth; i++) { | |
2954 | this.userTabStop[i] = false; | |
2955 | } | |
2956 | } | |
2957 | break; | |
2958 | /*h*/ case 0x68: this.setMode(true); break; | |
2959 | /*l*/ case 0x6C: this.setMode(false); break; | |
2960 | /*n*/ case 0x6E: switch (this.par[0]) { | |
2961 | case 5: this.statusReport(); break; | |
2962 | case 6: this.cursorReport(); break; | |
2963 | default: break; | |
2964 | } | |
2965 | break; | |
2966 | /*q*/ case 0x71: // LED control not implemented | |
2967 | break; | |
2968 | /*r*/ case 0x72: var t = this.par[0] ? this.par[0] : 1; | |
2969 | var b = this.par[1] ? this.par[1] | |
2970 | : this.terminalHeight; | |
2971 | if (t < b && b <= this.terminalHeight) { | |
2972 | this.top = t - 1; | |
2973 | this.bottom= b; | |
2974 | this.gotoXaY(0, 0); | |
2975 | } | |
2976 | break; | |
2977 | /*b*/ case 0x62: var c = this.par[0] ? this.par[0] : 1; | |
2978 | if (c > this.terminalWidth * this.terminalHeight) { | |
2979 | c = this.terminalWidth * this.terminalHeight; | |
2980 | } | |
2981 | while (c-- > 0) { | |
2982 | lineBuf += this.lastCharacter; | |
2983 | } | |
2984 | break; | |
2985 | /*s*/ case 0x73: this.saveCursor(); break; | |
2986 | /*u*/ case 0x75: this.restoreCursor(); break; | |
2987 | /*Z*/ case 0x5A: this.rt(this.par[0] ? this.par[0] : 1); break; | |
2988 | /*]*/ case 0x5D: this.settermCommand(); break; | |
2989 | default: break; | |
2990 | } | |
2991 | break; | |
c27d0db9 | 2992 | case 12 /* ESbang */: |
7460295f MG |
2993 | if (ch == 'p') { |
2994 | this.reset(); | |
2995 | } | |
c27d0db9 | 2996 | this.isEsc = 0 /* ESnormal */; |
7460295f | 2997 | break; |
c27d0db9 MG |
2998 | case 13 /* ESpercent */: |
2999 | this.isEsc = 0 /* ESnormal */; | |
7460295f MG |
3000 | switch (ch) { |
3001 | /*@*/ case 0x40: this.utfEnabled = false; break; | |
3002 | /*G*/ case 0x47: | |
3003 | /*8*/ case 0x38: this.utfEnabled = true; break; | |
3004 | default: break; | |
3005 | } | |
3006 | break; | |
c27d0db9 MG |
3007 | case 6 /* ESfunckey */: |
3008 | this.isEsc = 0 /* ESnormal */; break; | |
3009 | case 7 /* EShash */: | |
3010 | this.isEsc = 0 /* ESnormal */; | |
7460295f MG |
3011 | /*8*/ if (ch == 0x38) { |
3012 | // Screen alignment test not implemented | |
3013 | } | |
3014 | break; | |
c27d0db9 MG |
3015 | case 8 /* ESsetG0 */: |
3016 | case 9 /* ESsetG1 */: | |
3017 | case 10 /* ESsetG2 */: | |
3018 | case 11 /* ESsetG3 */: | |
3019 | var g = this.isEsc - 8 /* ESsetG0 */; | |
3020 | this.isEsc = 0 /* ESnormal */; | |
7460295f MG |
3021 | switch (ch) { |
3022 | /*0*/ case 0x30: this.GMap[g] = this.VT100GraphicsMap; break; | |
3023 | /*A*/ case 0x42: | |
3024 | /*B*/ case 0x42: this.GMap[g] = this.Latin1Map; break; | |
3025 | /*U*/ case 0x55: this.GMap[g] = this.CodePage437Map; break; | |
3026 | /*K*/ case 0x4B: this.GMap[g] = this.DirectToFontMap; break; | |
3027 | default: break; | |
3028 | } | |
3029 | if (this.useGMap == g) { | |
3030 | this.translate = this.GMap[g]; | |
3031 | } | |
3032 | break; | |
c27d0db9 | 3033 | case 17 /* ESstatus */: |
7460295f MG |
3034 | if (ch == 0x07) { |
3035 | if (this.statusString && this.statusString.charAt(0) == ';') { | |
3036 | this.statusString = this.statusString.substr(1); | |
3037 | } | |
3038 | try { | |
3039 | window.status = this.statusString; | |
3040 | } catch (e) { | |
3041 | } | |
c27d0db9 | 3042 | this.isEsc = 0 /* ESnormal */; |
7460295f MG |
3043 | } else { |
3044 | this.statusString += String.fromCharCode(ch); | |
3045 | } | |
3046 | break; | |
c27d0db9 MG |
3047 | case 18 /* ESss2 */: |
3048 | case 19 /* ESss3 */: | |
7460295f | 3049 | if (ch < 256) { |
c27d0db9 | 3050 | ch = this.GMap[this.isEsc - 18 /* ESss2 */ + 2] |
7460295f MG |
3051 | [this.toggleMeta ? (ch | 0x80) : ch]; |
3052 | if ((ch & 0xFF00) == 0xF000) { | |
3053 | ch = ch & 0xFF; | |
3054 | } else if (ch == 0xFEFF || (ch >= 0x200A && ch <= 0x200F)) { | |
c27d0db9 | 3055 | this.isEsc = 0 /* ESnormal */; break; |
7460295f MG |
3056 | } |
3057 | } | |
3058 | this.lastCharacter = String.fromCharCode(ch); | |
3059 | lineBuf += this.lastCharacter; | |
c27d0db9 | 3060 | this.isEsc = 0 /* ESnormal */; break; |
7460295f | 3061 | default: |
c27d0db9 | 3062 | this.isEsc = 0 /* ESnormal */; break; |
7460295f MG |
3063 | } |
3064 | break; | |
3065 | } | |
3066 | return lineBuf; | |
3067 | }; | |
3068 | ||
3069 | VT100.prototype.renderString = function(s, showCursor) { | |
3070 | // We try to minimize the number of DOM operations by coalescing individual | |
3071 | // characters into strings. This is a significant performance improvement. | |
3072 | var incX = s.length; | |
3073 | if (incX > this.terminalWidth - this.cursorX) { | |
3074 | incX = this.terminalWidth - this.cursorX; | |
3075 | if (incX <= 0) { | |
3076 | return; | |
3077 | } | |
3078 | s = s.substr(0, incX - 1) + s.charAt(s.length - 1); | |
3079 | } | |
3080 | if (showCursor) { | |
3081 | // Minimize the number of calls to putString(), by avoiding a direct | |
3082 | // call to this.showCursor() | |
3083 | this.cursor.style.visibility = ''; | |
3084 | } | |
3085 | this.putString(this.cursorX, this.cursorY, s, this.style); | |
3086 | }; | |
3087 | ||
3088 | VT100.prototype.vt100 = function(s) { | |
57e76178 | 3089 | this.cursorNeedsShowing = this.hideCursor(); |
7460295f MG |
3090 | this.respondString = ''; |
3091 | var lineBuf = ''; | |
3092 | for (var i = 0; i < s.length; i++) { | |
3093 | var ch = s.charCodeAt(i); | |
3094 | if (this.utfEnabled) { | |
3095 | // Decode UTF8 encoded character | |
3096 | if (ch > 0x7F) { | |
3097 | if (this.utfCount > 0 && (ch & 0xC0) == 0x80) { | |
3098 | this.utfChar = (this.utfChar << 6) | (ch & 0x3F); | |
3099 | if (--this.utfCount <= 0) { | |
3100 | if (this.utfChar > 0xFFFF || this.utfChar < 0) { | |
3101 | ch = 0xFFFD; | |
3102 | } else { | |
3103 | ch = this.utfChar; | |
3104 | } | |
3105 | } else { | |
3106 | continue; | |
3107 | } | |
3108 | } else { | |
3109 | if ((ch & 0xE0) == 0xC0) { | |
3110 | this.utfCount = 1; | |
3111 | this.utfChar = ch & 0x1F; | |
3112 | } else if ((ch & 0xF0) == 0xE0) { | |
3113 | this.utfCount = 2; | |
3114 | this.utfChar = ch & 0x0F; | |
3115 | } else if ((ch & 0xF8) == 0xF0) { | |
3116 | this.utfCount = 3; | |
3117 | this.utfChar = ch & 0x07; | |
3118 | } else if ((ch & 0xFC) == 0xF8) { | |
3119 | this.utfCount = 4; | |
3120 | this.utfChar = ch & 0x03; | |
3121 | } else if ((ch & 0xFE) == 0xFC) { | |
3122 | this.utfCount = 5; | |
3123 | this.utfChar = ch & 0x01; | |
3124 | } else { | |
3125 | this.utfCount = 0; | |
3126 | } | |
3127 | continue; | |
3128 | } | |
3129 | } else { | |
3130 | this.utfCount = 0; | |
3131 | } | |
3132 | } | |
3133 | var isNormalCharacter = | |
3134 | (ch >= 32 && ch <= 127 || ch >= 160 || | |
3135 | this.utfEnabled && ch >= 128 || | |
3136 | !(this.dispCtrl ? this.ctrlAlways : this.ctrlAction)[ch & 0x1F]) && | |
3137 | (ch != 0x7F || this.dispCtrl); | |
3138 | ||
c27d0db9 | 3139 | if (isNormalCharacter && this.isEsc == 0 /* ESnormal */) { |
7460295f MG |
3140 | if (ch < 256) { |
3141 | ch = this.translate[this.toggleMeta ? (ch | 0x80) : ch]; | |
3142 | } | |
3143 | if ((ch & 0xFF00) == 0xF000) { | |
3144 | ch = ch & 0xFF; | |
3145 | } else if (ch == 0xFEFF || (ch >= 0x200A && ch <= 0x200F)) { | |
3146 | continue; | |
3147 | } | |
3148 | if (this.needWrap || this.insertMode) { | |
3149 | if (lineBuf) { | |
3150 | this.renderString(lineBuf); | |
3151 | lineBuf = ''; | |
3152 | } | |
3153 | } | |
3154 | if (this.needWrap) { | |
3155 | this.cr(); this.lf(); | |
3156 | } | |
3157 | if (this.insertMode) { | |
3158 | this.scrollRegion(this.cursorX, this.cursorY, | |
3159 | this.terminalWidth - this.cursorX - 1, 1, | |
3160 | 1, 0, this.style); | |
3161 | } | |
3162 | this.lastCharacter = String.fromCharCode(ch); | |
3163 | lineBuf += this.lastCharacter; | |
3164 | if (this.cursorX + lineBuf.length >= this.terminalWidth) { | |
3165 | this.needWrap = this.autoWrapMode; | |
3166 | } | |
3167 | } else { | |
3168 | if (lineBuf) { | |
3169 | this.renderString(lineBuf); | |
3170 | lineBuf = ''; | |
3171 | } | |
3172 | var expand = this.doControl(ch); | |
3173 | if (expand.length) { | |
3174 | var r = this.respondString; | |
3175 | this.respondString= r + this.vt100(expand); | |
3176 | } | |
3177 | } | |
3178 | } | |
3179 | if (lineBuf) { | |
57e76178 MG |
3180 | this.renderString(lineBuf, this.cursorNeedsShowing); |
3181 | } else if (this.cursorNeedsShowing) { | |
7460295f MG |
3182 | this.showCursor(); |
3183 | } | |
3184 | return this.respondString; | |
3185 | }; | |
3186 | ||
3187 | VT100.prototype.Latin1Map = [ | |
3188 | 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, | |
3189 | 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, | |
3190 | 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, | |
3191 | 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, | |
3192 | 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, | |
3193 | 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, | |
3194 | 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, | |
3195 | 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, | |
3196 | 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, | |
3197 | 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, | |
3198 | 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, | |
3199 | 0x0058, 0x0059, 0x005A, 0x005B, 0x005C, 0x005D, 0x005E, 0x005F, | |
3200 | 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, | |
3201 | 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, | |
3202 | 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, | |
3203 | 0x0078, 0x0079, 0x007A, 0x007B, 0x007C, 0x007D, 0x007E, 0x007F, | |
3204 | 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087, | |
3205 | 0x0088, 0x0089, 0x008A, 0x008B, 0x008C, 0x008D, 0x008E, 0x008F, | |
3206 | 0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097, | |
3207 | 0x0098, 0x0099, 0x009A, 0x009B, 0x009C, 0x009D, 0x009E, 0x009F, | |
3208 | 0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7, | |
3209 | 0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF, | |
3210 | 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7, | |
3211 | 0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF, | |
3212 | 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7, | |
3213 | 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF, | |
3214 | 0x00D0, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7, | |
3215 | 0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x00DE, 0x00DF, | |
3216 | 0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7, | |
3217 | 0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF, | |
3218 | 0x00F0, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7, | |
3219 | 0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x00FE, 0x00FF | |
3220 | ]; | |
3221 | ||
3222 | VT100.prototype.VT100GraphicsMap = [ | |
3223 | 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, | |
3224 | 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, | |
3225 | 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, | |
3226 | 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, | |
3227 | 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, | |
3228 | 0x0028, 0x0029, 0x002A, 0x2192, 0x2190, 0x2191, 0x2193, 0x002F, | |
3229 | 0x2588, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, | |
3230 | 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, | |
3231 | 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, | |
3232 | 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, | |
3233 | 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, | |
3234 | 0x0058, 0x0059, 0x005A, 0x005B, 0x005C, 0x005D, 0x005E, 0x00A0, | |
3235 | 0x25C6, 0x2592, 0x2409, 0x240C, 0x240D, 0x240A, 0x00B0, 0x00B1, | |
3236 | 0x2591, 0x240B, 0x2518, 0x2510, 0x250C, 0x2514, 0x253C, 0xF800, | |
3237 | 0xF801, 0x2500, 0xF803, 0xF804, 0x251C, 0x2524, 0x2534, 0x252C, | |
3238 | 0x2502, 0x2264, 0x2265, 0x03C0, 0x2260, 0x00A3, 0x00B7, 0x007F, | |
3239 | 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087, | |
3240 | 0x0088, 0x0089, 0x008A, 0x008B, 0x008C, 0x008D, 0x008E, 0x008F, | |
3241 | 0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097, | |
3242 | 0x0098, 0x0099, 0x009A, 0x009B, 0x009C, 0x009D, 0x009E, 0x009F, | |
3243 | 0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7, | |
3244 | 0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF, | |
3245 | 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7, | |
3246 | 0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF, | |
3247 | 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7, | |
3248 | 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF, | |
3249 | 0x00D0, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7, | |
3250 | 0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x00DE, 0x00DF, | |
3251 | 0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7, | |
3252 | 0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF, | |
3253 | 0x00F0, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7, | |
3254 | 0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x00FE, 0x00FF | |
3255 | ]; | |
3256 | ||
3257 | VT100.prototype.CodePage437Map = [ | |
3258 | 0x0000, 0x263A, 0x263B, 0x2665, 0x2666, 0x2663, 0x2660, 0x2022, | |
3259 | 0x25D8, 0x25CB, 0x25D9, 0x2642, 0x2640, 0x266A, 0x266B, 0x263C, | |
3260 | 0x25B6, 0x25C0, 0x2195, 0x203C, 0x00B6, 0x00A7, 0x25AC, 0x21A8, | |
3261 | 0x2191, 0x2193, 0x2192, 0x2190, 0x221F, 0x2194, 0x25B2, 0x25BC, | |
3262 | 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, | |
3263 | 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, | |
3264 | 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, | |
3265 | 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, | |
3266 | 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, | |
3267 | 0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F, | |
3268 | 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, | |
3269 | 0x0058, 0x0059, 0x005A, 0x005B, 0x005C, 0x005D, 0x005E, 0x005F, | |
3270 | 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, | |
3271 | 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, | |
3272 | 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, | |
3273 | 0x0078, 0x0079, 0x007A, 0x007B, 0x007C, 0x007D, 0x007E, 0x2302, | |
3274 | 0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7, | |
3275 | 0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5, | |
3276 | 0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9, | |
3277 | 0x00FF, 0x00D6, 0x00DC, 0x00A2, 0x00A3, 0x00A5, 0x20A7, 0x0192, | |
3278 | 0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA, | |
3279 | 0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB, | |
3280 | 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, | |
3281 | 0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510, | |
3282 | 0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F, | |
3283 | 0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567, | |
3284 | 0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B, | |
3285 | 0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580, | |
3286 | 0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4, | |
3287 | 0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229, | |
3288 | 0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248, | |
3289 | 0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0 | |
3290 | ]; | |
3291 | ||
3292 | VT100.prototype.DirectToFontMap = [ | |
3293 | 0xF000, 0xF001, 0xF002, 0xF003, 0xF004, 0xF005, 0xF006, 0xF007, | |
3294 | 0xF008, 0xF009, 0xF00A, 0xF00B, 0xF00C, 0xF00D, 0xF00E, 0xF00F, | |
3295 | 0xF010, 0xF011, 0xF012, 0xF013, 0xF014, 0xF015, 0xF016, 0xF017, | |
3296 | 0xF018, 0xF019, 0xF01A, 0xF01B, 0xF01C, 0xF01D, 0xF01E, 0xF01F, | |
3297 | 0xF020, 0xF021, 0xF022, 0xF023, 0xF024, 0xF025, 0xF026, 0xF027, | |
3298 | 0xF028, 0xF029, 0xF02A, 0xF02B, 0xF02C, 0xF02D, 0xF02E, 0xF02F, | |
3299 | 0xF030, 0xF031, 0xF032, 0xF033, 0xF034, 0xF035, 0xF036, 0xF037, | |
3300 | 0xF038, 0xF039, 0xF03A, 0xF03B, 0xF03C, 0xF03D, 0xF03E, 0xF03F, | |
3301 | 0xF040, 0xF041, 0xF042, 0xF043, 0xF044, 0xF045, 0xF046, 0xF047, | |
3302 | 0xF048, 0xF049, 0xF04A, 0xF04B, 0xF04C, 0xF04D, 0xF04E, 0xF04F, | |
3303 | 0xF050, 0xF051, 0xF052, 0xF053, 0xF054, 0xF055, 0xF056, 0xF057, | |
3304 | 0xF058, 0xF059, 0xF05A, 0xF05B, 0xF05C, 0xF05D, 0xF05E, 0xF05F, | |
3305 | 0xF060, 0xF061, 0xF062, 0xF063, 0xF064, 0xF065, 0xF066, 0xF067, | |
3306 | 0xF068, 0xF069, 0xF06A, 0xF06B, 0xF06C, 0xF06D, 0xF06E, 0xF06F, | |
3307 | 0xF070, 0xF071, 0xF072, 0xF073, 0xF074, 0xF075, 0xF076, 0xF077, | |
3308 | 0xF078, 0xF079, 0xF07A, 0xF07B, 0xF07C, 0xF07D, 0xF07E, 0xF07F, | |
3309 | 0xF080, 0xF081, 0xF082, 0xF083, 0xF084, 0xF085, 0xF086, 0xF087, | |
3310 | 0xF088, 0xF089, 0xF08A, 0xF08B, 0xF08C, 0xF08D, 0xF08E, 0xF08F, | |
3311 | 0xF090, 0xF091, 0xF092, 0xF093, 0xF094, 0xF095, 0xF096, 0xF097, | |
3312 | 0xF098, 0xF099, 0xF09A, 0xF09B, 0xF09C, 0xF09D, 0xF09E, 0xF09F, | |
3313 | 0xF0A0, 0xF0A1, 0xF0A2, 0xF0A3, 0xF0A4, 0xF0A5, 0xF0A6, 0xF0A7, | |
3314 | 0xF0A8, 0xF0A9, 0xF0AA, 0xF0AB, 0xF0AC, 0xF0AD, 0xF0AE, 0xF0AF, | |
3315 | 0xF0B0, 0xF0B1, 0xF0B2, 0xF0B3, 0xF0B4, 0xF0B5, 0xF0B6, 0xF0B7, | |
3316 | 0xF0B8, 0xF0B9, 0xF0BA, 0xF0BB, 0xF0BC, 0xF0BD, 0xF0BE, 0xF0BF, | |
3317 | 0xF0C0, 0xF0C1, 0xF0C2, 0xF0C3, 0xF0C4, 0xF0C5, 0xF0C6, 0xF0C7, | |
3318 | 0xF0C8, 0xF0C9, 0xF0CA, 0xF0CB, 0xF0CC, 0xF0CD, 0xF0CE, 0xF0CF, | |
3319 | 0xF0D0, 0xF0D1, 0xF0D2, 0xF0D3, 0xF0D4, 0xF0D5, 0xF0D6, 0xF0D7, | |
3320 | 0xF0D8, 0xF0D9, 0xF0DA, 0xF0DB, 0xF0DC, 0xF0DD, 0xF0DE, 0xF0DF, | |
3321 | 0xF0E0, 0xF0E1, 0xF0E2, 0xF0E3, 0xF0E4, 0xF0E5, 0xF0E6, 0xF0E7, | |
3322 | 0xF0E8, 0xF0E9, 0xF0EA, 0xF0EB, 0xF0EC, 0xF0ED, 0xF0EE, 0xF0EF, | |
3323 | 0xF0F0, 0xF0F1, 0xF0F2, 0xF0F3, 0xF0F4, 0xF0F5, 0xF0F6, 0xF0F7, | |
3324 | 0xF0F8, 0xF0F9, 0xF0FA, 0xF0FB, 0xF0FC, 0xF0FD, 0xF0FE, 0xF0FF | |
3325 | ]; | |
3326 | ||
3327 | VT100.prototype.ctrlAction = [ | |
3328 | true, false, false, false, false, false, false, true, | |
3329 | true, true, true, true, true, true, true, true, | |
3330 | false, false, false, false, false, false, false, false, | |
3331 | true, false, true, true, false, false, false, false | |
3332 | ]; | |
3333 | ||
3334 | VT100.prototype.ctrlAlways = [ | |
3335 | true, false, false, false, false, false, false, false, | |
3336 | true, false, true, false, true, true, true, true, | |
3337 | false, false, false, false, false, false, false, false, | |
3338 | false, false, false, true, false, false, false, false | |
3339 | ]; | |
3340 |