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