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Commit | Line | Data |
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e0c0fb69 DI |
1 | var term, |
2 | protocol, | |
3 | socketURL, | |
f57a40ee | 4 | socket, |
0f8fc63a PK |
5 | pid, |
6 | charWidth, | |
7 | charHeight; | |
8 | ||
9 | var terminalContainer = document.getElementById('terminal-container'), | |
10 | optionElements = { | |
5a932b2a | 11 | cursorBlink: document.querySelector('#option-cursor-blink'), |
46d62f49 | 12 | cursorStyle: document.querySelector('#option-cursor-style'), |
f4293a6d PK |
13 | scrollback: document.querySelector('#option-scrollback'), |
14 | tabstopwidth: document.querySelector('#option-tabstopwidth') | |
0f8fc63a PK |
15 | }, |
16 | colsElement = document.getElementById('cols'), | |
17 | rowsElement = document.getElementById('rows'); | |
18 | ||
19 | function setTerminalSize () { | |
6e1628bc PK |
20 | var cols = parseInt(colsElement.value, 10), |
21 | rows = parseInt(rowsElement.value, 10), | |
0f8fc63a PK |
22 | width = (cols * charWidth).toString() + 'px', |
23 | height = (rows * charHeight).toString() + 'px'; | |
24 | ||
25 | terminalContainer.style.width = width; | |
26 | terminalContainer.style.height = height; | |
27 | term.resize(cols, rows); | |
28 | } | |
e0c0fb69 | 29 | |
0f8fc63a PK |
30 | colsElement.addEventListener('change', setTerminalSize); |
31 | rowsElement.addEventListener('change', setTerminalSize); | |
e0c0fb69 | 32 | |
7679475b DI |
33 | optionElements.cursorBlink.addEventListener('change', function () { |
34 | term.setOption('cursorBlink', optionElements.cursorBlink.checked); | |
35 | }); | |
46d62f49 DI |
36 | optionElements.cursorStyle.addEventListener('change', function () { |
37 | term.setOption('cursorStyle', optionElements.cursorStyle.value); | |
38 | }); | |
5a932b2a | 39 | optionElements.scrollback.addEventListener('change', function () { |
f4293a6d PK |
40 | term.setOption('scrollback', parseInt(optionElements.scrollback.value, 10)); |
41 | }); | |
42 | optionElements.tabstopwidth.addEventListener('change', function () { | |
6e1628bc | 43 | term.setOption('tabStopWidth', parseInt(optionElements.tabstopwidth.value, 10)); |
5a932b2a | 44 | }); |
e0c0fb69 DI |
45 | |
46 | createTerminal(); | |
47 | ||
48 | function createTerminal() { | |
f57a40ee | 49 | // Clean terminal |
e0c0fb69 DI |
50 | while (terminalContainer.children.length) { |
51 | terminalContainer.removeChild(terminalContainer.children[0]); | |
52 | } | |
53 | term = new Terminal({ | |
5a932b2a | 54 | cursorBlink: optionElements.cursorBlink.checked, |
f4293a6d | 55 | scrollback: parseInt(optionElements.scrollback.value, 10), |
6e1628bc | 56 | tabStopWidth: parseInt(optionElements.tabstopwidth.value, 10) |
e0c0fb69 | 57 | }); |
f57a40ee PK |
58 | term.on('resize', function (size) { |
59 | if (!pid) { | |
60 | return; | |
61 | } | |
0f8fc63a PK |
62 | var cols = size.cols, |
63 | rows = size.rows, | |
64 | url = '/terminals/' + pid + '/size?cols=' + cols + '&rows=' + rows; | |
65 | ||
66 | fetch(url, {method: 'POST'}); | |
f57a40ee | 67 | }); |
e0c0fb69 | 68 | protocol = (location.protocol === 'https:') ? 'wss://' : 'ws://'; |
f57a40ee | 69 | socketURL = protocol + location.hostname + ((location.port) ? (':' + location.port) : '') + '/terminals/'; |
e0c0fb69 DI |
70 | |
71 | term.open(terminalContainer); | |
0f8fc63a | 72 | term.fit(); |
e0c0fb69 | 73 | |
f57a40ee PK |
74 | var initialGeometry = term.proposeGeometry(), |
75 | cols = initialGeometry.cols, | |
76 | rows = initialGeometry.rows; | |
77 | ||
0f8fc63a PK |
78 | colsElement.value = cols; |
79 | rowsElement.value = rows; | |
80 | ||
f57a40ee | 81 | fetch('/terminals?cols=' + cols + '&rows=' + rows, {method: 'POST'}).then(function (res) { |
0f8fc63a PK |
82 | |
83 | charWidth = Math.ceil(term.element.offsetWidth / cols); | |
84 | charHeight = Math.ceil(term.element.offsetHeight / rows); | |
85 | ||
f57a40ee PK |
86 | res.text().then(function (pid) { |
87 | window.pid = pid; | |
88 | socketURL += pid; | |
89 | socket = new WebSocket(socketURL); | |
90 | socket.onopen = runRealTerminal; | |
91 | socket.onclose = runFakeTerminal; | |
92 | socket.onerror = runFakeTerminal; | |
93 | }); | |
94 | }); | |
e0c0fb69 | 95 | } |
dc3946f6 | 96 | |
53e8df40 PK |
97 | function runRealTerminal() { |
98 | term.attach(socket); | |
99 | term._initialized = true; | |
100 | } | |
c5ae1cea | 101 | |
53e8df40 PK |
102 | function runFakeTerminal() { |
103 | if (term._initialized) { | |
104 | return; | |
105 | } | |
106 | ||
107 | term._initialized = true; | |
108 | ||
109 | var shellprompt = '$ '; | |
110 | ||
111 | term.prompt = function () { | |
112 | term.write('\r\n' + shellprompt); | |
113 | }; | |
c5ae1cea | 114 | |
53e8df40 PK |
115 | term.writeln('Welcome to xterm.js'); |
116 | term.writeln('This is a local terminal emulation, without a real terminal in the back-end.'); | |
117 | term.writeln('Type some keys and commands to play around.'); | |
118 | term.writeln(''); | |
119 | term.prompt(); | |
46bb446e | 120 | |
53e8df40 PK |
121 | term.on('key', function (key, ev) { |
122 | var printable = ( | |
123 | !ev.altKey && !ev.altGraphKey && !ev.ctrlKey && !ev.metaKey | |
124 | ); | |
125 | ||
126 | if (ev.keyCode == 13) { | |
127 | term.prompt(); | |
128 | } else if (ev.keyCode == 8) { | |
0f8fc63a | 129 | // Do not delete the prompt |
53e8df40 PK |
130 | if (term.x > 2) { |
131 | term.write('\b \b'); | |
132 | } | |
133 | } else if (printable) { | |
134 | term.write(key); | |
567b39dc | 135 | } |
53e8df40 PK |
136 | }); |
137 | ||
138 | term.on('paste', function (data, ev) { | |
139 | term.write(data); | |
140 | }); | |
141 | } |