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15046f00 JM |
1 | /* |
2 | * noVNC: HTML5 VNC client | |
3 | * Copyright (C) 2010 Joel Martin | |
5f409eee | 4 | * Licensed under LGPL-3 (see LICENSE.txt) |
15046f00 JM |
5 | * |
6 | * See README.md for usage and integration instructions. | |
7 | */ | |
43cf7bd8 | 8 | |
15046f00 | 9 | "use strict"; |
43cf7bd8 JM |
10 | /*jslint white: false, browser: true */ |
11 | /*global window, $D, Util, WebUtil, RFB, Canvas, Element, Fx */ | |
15046f00 | 12 | |
f7ec5b2c | 13 | var UI = { |
91308399 | 14 | |
da6dd893 JM |
15 | settingsOpen : false, |
16 | ||
f7ec5b2c | 17 | // Render default UI and initialize settings menu |
91308399 | 18 | load: function(target) { |
f7ec5b2c | 19 | var html = '', i, sheet, sheets, llevels; |
91308399 | 20 | |
f7ec5b2c | 21 | /* Populate the 'target' DOM element with default UI */ |
e4671910 JM |
22 | if (!target) { |
23 | target = $D('vnc'); | |
24 | } else if (typeof target === 'string') { | |
25 | target = $D(target); | |
26 | } | |
91308399 | 27 | |
e66f3f89 JM |
28 | if ((!document.createElement('canvas').getContext) && |
29 | window.ActiveXObject) { | |
30 | // Suggest Chrome frame for Internet Explorer users | |
31 | html += '<center><div style="text-align: left; width: 400px">'; | |
32 | html += ' You are using a version of Internet Explorer '; | |
33 | html += ' that does not have HTML5 Canvas support. '; | |
34 | html += ' To use noVNC you must use a browser with HTML5 '; | |
35 | html += ' Canvas support or install '; | |
36 | html += ' <a href="http://google.com/chromeframe" target="cframe">'; | |
37 | html += ' Google Chrome Frame.</a>'; | |
38 | html += '</div></center>'; | |
e4671910 | 39 | target.innerHTML = html; |
e66f3f89 JM |
40 | return; |
41 | } | |
42 | ||
91308399 JM |
43 | html += '<div id="VNC_controls">'; |
44 | html += ' <ul>'; | |
45 | html += ' <li>Host: <input id="VNC_host"></li>'; | |
46 | html += ' <li>Port: <input id="VNC_port"></li>'; | |
47 | html += ' <li>Password: <input id="VNC_password"'; | |
48 | html += ' type="password"></li>'; | |
91308399 JM |
49 | html += ' <li><input id="VNC_connect_button" type="button"'; |
50 | html += ' value="Loading" disabled></li>'; | |
51 | html += ' </ul>'; | |
52 | html += '</div>'; | |
53 | html += '<div id="VNC_screen">'; | |
63708ff5 JM |
54 | html += ' <div id="VNC_status_bar" class="VNC_status_bar" style="margin-top: 0px;">'; |
55 | html += ' <table border=0 width=100%><tr>'; | |
56 | html += ' <td><div id="VNC_status">Loading</div></td>'; | |
da6dd893 JM |
57 | html += ' <td width=1%><div class="VNC_buttons_right">'; |
58 | html += ' <input type=button class="VNC_status_button" value="Settings"'; | |
59 | html += ' id="menuButton"'; | |
f7ec5b2c | 60 | html += ' onclick="UI.clickSettingsMenu();">'; |
da6dd893 | 61 | html += ' <span id="VNC_settings_menu"'; |
f7ec5b2c JM |
62 | html += ' onmouseover="UI.canvasBlur();"'; |
63 | html += ' onmouseout="UI.canvasFocus();">'; | |
da6dd893 JM |
64 | html += ' <ul>'; |
65 | html += ' <li><input id="VNC_encrypt"'; | |
208c832b | 66 | html += ' type="checkbox"> Encrypt</li>'; |
da6dd893 JM |
67 | html += ' <li><input id="VNC_true_color"'; |
68 | html += ' type="checkbox" checked> True Color</li>'; | |
69 | html += ' <li><input id="VNC_cursor"'; | |
31a837d5 | 70 | html += ' type="checkbox"> Local Cursor</li>'; |
f1a9971c JM |
71 | html += ' <li><input id="VNC_shared"'; |
72 | html += ' type="checkbox"> Shared Mode</li>'; | |
ff36b127 JM |
73 | html += ' <li><input id="VNC_connectTimeout"'; |
74 | html += ' type="input"> Connect Timeout (s)</li>'; | |
da6dd893 JM |
75 | html += ' <hr>'; |
76 | ||
77 | // Stylesheet selection dropdown | |
78 | html += ' <li><select id="VNC_stylesheet" name="vncStyle">'; | |
79 | html += ' <option value="default">default</option>'; | |
8d5d2c82 AM |
80 | sheet = WebUtil.selectStylesheet(); |
81 | sheets = WebUtil.getStylesheets(); | |
8db09746 | 82 | for (i = 0; i < sheets.length; i += 1) { |
da6dd893 JM |
83 | html += '<option value="' + sheets[i].title + '">' + sheets[i].title + '</option>'; |
84 | } | |
85 | html += ' </select> Style</li>'; | |
86 | ||
87 | // Logging selection dropdown | |
88 | html += ' <li><select id="VNC_logging" name="vncLogging">'; | |
89 | llevels = ['error', 'warn', 'info', 'debug']; | |
8db09746 | 90 | for (i = 0; i < llevels.length; i += 1) { |
da6dd893 JM |
91 | html += '<option value="' + llevels[i] + '">' + llevels[i] + '</option>'; |
92 | } | |
93 | html += ' </select> Logging</li>'; | |
94 | ||
95 | html += ' <hr>'; | |
96 | html += ' <li><input type="button" id="VNC_apply" value="Apply"'; | |
f7ec5b2c | 97 | html += ' onclick="UI.settingsApply()"></li>'; |
da6dd893 JM |
98 | html += ' </ul>'; |
99 | html += ' </span></div></td>'; | |
100 | html += ' <td width=1%><div class="VNC_buttons_right">'; | |
101 | html += ' <input type=button class="VNC_status_button" value="Send CtrlAltDel"'; | |
160fabf6 | 102 | html += ' id="sendCtrlAltDelButton"'; |
f7ec5b2c | 103 | html += ' onclick="UI.sendCtrlAltDel();"></div></td>'; |
63708ff5 JM |
104 | html += ' </tr></table>'; |
105 | html += ' </div>'; | |
91308399 JM |
106 | html += ' <canvas id="VNC_canvas" width="640px" height="20px">'; |
107 | html += ' Canvas not supported.'; | |
108 | html += ' </canvas>'; | |
109 | html += '</div>'; | |
110 | html += '<br><br>'; | |
111 | html += '<div id="VNC_clipboard">'; | |
112 | html += ' VNC Clipboard:'; | |
113 | html += ' <input id="VNC_clipboard_clear_button"'; | |
114 | html += ' type="button" value="Clear"'; | |
f7ec5b2c | 115 | html += ' onclick="UI.clipClear();">'; |
91308399 JM |
116 | html += ' <br>'; |
117 | html += ' <textarea id="VNC_clipboard_text" cols=80 rows=5'; | |
f7ec5b2c JM |
118 | html += ' onfocus="UI.canvasBlur();"'; |
119 | html += ' onblur="UI.canvasFocus();"'; | |
120 | html += ' onchange="UI.clipSend();"></textarea>'; | |
91308399 | 121 | html += '</div>'; |
e4671910 | 122 | target.innerHTML = html; |
91308399 | 123 | |
da6dd893 | 124 | // Settings with immediate effects |
f7ec5b2c JM |
125 | UI.initSetting('logging', 'warn'); |
126 | WebUtil.init_logging(UI.getSetting('logging')); | |
127 | UI.initSetting('stylesheet', 'default'); | |
8db09746 | 128 | |
8d5d2c82 | 129 | WebUtil.selectStylesheet(null); // call twice to get around webkit bug |
f7ec5b2c | 130 | WebUtil.selectStylesheet(UI.getSetting('stylesheet')); |
da6dd893 | 131 | |
91308399 | 132 | /* Populate the controls if defaults are provided in the URL */ |
f7ec5b2c JM |
133 | UI.initSetting('host', ''); |
134 | UI.initSetting('port', ''); | |
135 | UI.initSetting('password', ''); | |
136 | UI.initSetting('encrypt', false); | |
137 | UI.initSetting('true_color', true); | |
138 | UI.initSetting('cursor', false); | |
139 | UI.initSetting('shared', true); | |
140 | UI.initSetting('connectTimeout', 2); | |
141 | ||
e4671910 | 142 | UI.rfb = RFB({'target': $D('VNC_canvas'), |
f7ec5b2c JM |
143 | 'updateState': UI.updateState, |
144 | 'clipboardReceive': UI.clipReceive}); | |
8db09746 JM |
145 | |
146 | // Unfocus clipboard when over the VNC area | |
e4671910 | 147 | $D('VNC_screen').onmousemove = function () { |
f7ec5b2c | 148 | var canvas = UI.rfb.get_canvas(); |
8db09746 | 149 | if ((! canvas) || (! canvas.get_focused())) { |
e4671910 | 150 | $D('VNC_clipboard_text').blur(); |
3954ae14 JM |
151 | } |
152 | }; | |
8db09746 | 153 | |
91308399 JM |
154 | }, |
155 | ||
da6dd893 JM |
156 | // Read form control compatible setting from cookie |
157 | getSetting: function(name) { | |
e4671910 | 158 | var val, ctrl = $D('VNC_' + name); |
8d5d2c82 | 159 | val = WebUtil.readCookie(name); |
da6dd893 JM |
160 | if (ctrl.type === 'checkbox') { |
161 | if (val.toLowerCase() in {'0':1, 'no':1, 'false':1}) { | |
162 | val = false; | |
163 | } else { | |
164 | val = true; | |
165 | } | |
166 | } | |
167 | return val; | |
168 | }, | |
169 | ||
170 | // Update cookie and form control setting. If value is not set, then | |
171 | // updates from control to current cookie setting. | |
172 | updateSetting: function(name, value) { | |
e4671910 | 173 | var i, ctrl = $D('VNC_' + name); |
da6dd893 JM |
174 | // Save the cookie for this session |
175 | if (typeof value !== 'undefined') { | |
8d5d2c82 | 176 | WebUtil.createCookie(name, value); |
da6dd893 JM |
177 | } |
178 | ||
179 | // Update the settings control | |
f7ec5b2c | 180 | value = UI.getSetting(name); |
da6dd893 JM |
181 | if (ctrl.type === 'checkbox') { |
182 | ctrl.checked = value; | |
183 | } else if (typeof ctrl.options !== 'undefined') { | |
8db09746 | 184 | for (i = 0; i < ctrl.options.length; i += 1) { |
da6dd893 JM |
185 | if (ctrl.options[i].value === value) { |
186 | ctrl.selectedIndex = i; | |
187 | break; | |
188 | } | |
189 | } | |
190 | } else { | |
191 | ctrl.value = value; | |
192 | } | |
193 | }, | |
194 | ||
195 | // Save control setting to cookie | |
196 | saveSetting: function(name) { | |
e4671910 | 197 | var val, ctrl = $D('VNC_' + name); |
da6dd893 JM |
198 | if (ctrl.type === 'checkbox') { |
199 | val = ctrl.checked; | |
200 | } else if (typeof ctrl.options !== 'undefined') { | |
201 | val = ctrl.options[ctrl.selectedIndex].value; | |
202 | } else { | |
203 | val = ctrl.value; | |
204 | } | |
8d5d2c82 | 205 | WebUtil.createCookie(name, val); |
8db09746 | 206 | //Util.Debug("Setting saved '" + name + "=" + val + "'"); |
da6dd893 JM |
207 | return val; |
208 | }, | |
209 | ||
210 | // Initial page load read/initialization of settings | |
211 | initSetting: function(name, defVal) { | |
a8edf9d8 | 212 | var val; |
da6dd893 JM |
213 | |
214 | // Check Query string followed by cookie | |
8d5d2c82 | 215 | val = WebUtil.getQueryVar(name); |
da6dd893 | 216 | if (val === null) { |
8d5d2c82 | 217 | val = WebUtil.readCookie(name, defVal); |
da6dd893 | 218 | } |
f7ec5b2c | 219 | UI.updateSetting(name, val); |
8db09746 | 220 | //Util.Debug("Setting '" + name + "' initialized to '" + val + "'"); |
da6dd893 JM |
221 | return val; |
222 | }, | |
223 | ||
224 | ||
225 | // Toggle the settings menu: | |
226 | // On open, settings are refreshed from saved cookies. | |
227 | // On close, settings are applied | |
228 | clickSettingsMenu: function() { | |
f7ec5b2c JM |
229 | if (UI.settingsOpen) { |
230 | UI.settingsApply(); | |
da6dd893 | 231 | |
f7ec5b2c | 232 | UI.closeSettingsMenu(); |
da6dd893 | 233 | } else { |
f7ec5b2c JM |
234 | UI.updateSetting('encrypt'); |
235 | UI.updateSetting('true_color'); | |
236 | if (UI.rfb.get_canvas().get_cursor_uri()) { | |
237 | UI.updateSetting('cursor'); | |
da6dd893 | 238 | } else { |
f7ec5b2c | 239 | UI.updateSetting('cursor', false); |
e4671910 | 240 | $D('VNC_cursor').disabled = true; |
da6dd893 | 241 | } |
f7ec5b2c JM |
242 | UI.updateSetting('shared'); |
243 | UI.updateSetting('connectTimeout'); | |
244 | UI.updateSetting('stylesheet'); | |
245 | UI.updateSetting('logging'); | |
da6dd893 | 246 | |
f7ec5b2c | 247 | UI.openSettingsMenu(); |
da6dd893 JM |
248 | } |
249 | }, | |
250 | ||
251 | // Open menu | |
252 | openSettingsMenu: function() { | |
e4671910 | 253 | $D('VNC_settings_menu').style.display = "block"; |
f7ec5b2c | 254 | UI.settingsOpen = true; |
da6dd893 JM |
255 | }, |
256 | ||
257 | // Close menu (without applying settings) | |
258 | closeSettingsMenu: function() { | |
e4671910 | 259 | $D('VNC_settings_menu').style.display = "none"; |
f7ec5b2c | 260 | UI.settingsOpen = false; |
da6dd893 JM |
261 | }, |
262 | ||
263 | // Disable/enable controls depending on connection state | |
b5087acc JM |
264 | settingsDisabled: function(disabled, rfb) { |
265 | //Util.Debug(">> settingsDisabled"); | |
e4671910 JM |
266 | $D('VNC_encrypt').disabled = disabled; |
267 | $D('VNC_true_color').disabled = disabled; | |
455e4657 | 268 | if (rfb && rfb.get_canvas() && rfb.get_canvas().get_cursor_uri()) { |
e4671910 | 269 | $D('VNC_cursor').disabled = disabled; |
da6dd893 | 270 | } else { |
f7ec5b2c | 271 | UI.updateSetting('cursor', false); |
e4671910 | 272 | $D('VNC_cursor').disabled = true; |
da6dd893 | 273 | } |
e4671910 JM |
274 | $D('VNC_shared').disabled = disabled; |
275 | $D('VNC_connectTimeout').disabled = disabled; | |
b5087acc | 276 | //Util.Debug("<< settingsDisabled"); |
da6dd893 JM |
277 | }, |
278 | ||
279 | // Save/apply settings when 'Apply' button is pressed | |
280 | settingsApply: function() { | |
8db09746 | 281 | //Util.Debug(">> settingsApply"); |
f7ec5b2c JM |
282 | UI.saveSetting('encrypt'); |
283 | UI.saveSetting('true_color'); | |
284 | if (UI.rfb.get_canvas().get_cursor_uri()) { | |
285 | UI.saveSetting('cursor'); | |
da6dd893 | 286 | } |
f7ec5b2c JM |
287 | UI.saveSetting('shared'); |
288 | UI.saveSetting('connectTimeout'); | |
289 | UI.saveSetting('stylesheet'); | |
290 | UI.saveSetting('logging'); | |
da6dd893 JM |
291 | |
292 | // Settings with immediate (non-connected related) effect | |
f7ec5b2c JM |
293 | WebUtil.selectStylesheet(UI.getSetting('stylesheet')); |
294 | WebUtil.init_logging(UI.getSetting('logging')); | |
da6dd893 | 295 | |
8db09746 | 296 | //Util.Debug("<< settingsApply"); |
da6dd893 JM |
297 | }, |
298 | ||
299 | ||
300 | ||
f00b1e37 | 301 | setPassword: function() { |
e4671910 | 302 | UI.rfb.sendPassword($D('VNC_password').value); |
f00b1e37 JM |
303 | return false; |
304 | }, | |
305 | ||
63708ff5 | 306 | sendCtrlAltDel: function() { |
f7ec5b2c | 307 | UI.rfb.sendCtrlAltDel(); |
63708ff5 JM |
308 | }, |
309 | ||
8db09746 | 310 | updateState: function(rfb, state, oldstate, msg) { |
a7a89626 | 311 | var s, sb, c, cad, klass; |
e4671910 JM |
312 | s = $D('VNC_status'); |
313 | sb = $D('VNC_status_bar'); | |
314 | c = $D('VNC_connect_button'); | |
315 | cad = $D('sendCtrlAltDelButton'); | |
91308399 JM |
316 | switch (state) { |
317 | case 'failed': | |
f00b1e37 | 318 | case 'fatal': |
91308399 | 319 | c.disabled = true; |
160fabf6 | 320 | cad.disabled = true; |
f7ec5b2c | 321 | UI.settingsDisabled(true, rfb); |
91308399 JM |
322 | klass = "VNC_status_error"; |
323 | break; | |
324 | case 'normal': | |
325 | c.value = "Disconnect"; | |
f7ec5b2c | 326 | c.onclick = UI.disconnect; |
91308399 | 327 | c.disabled = false; |
160fabf6 | 328 | cad.disabled = false; |
f7ec5b2c | 329 | UI.settingsDisabled(true, rfb); |
91308399 JM |
330 | klass = "VNC_status_normal"; |
331 | break; | |
332 | case 'disconnected': | |
f00b1e37 | 333 | case 'loaded': |
91308399 | 334 | c.value = "Connect"; |
f7ec5b2c | 335 | c.onclick = UI.connect; |
91308399 JM |
336 | |
337 | c.disabled = false; | |
160fabf6 | 338 | cad.disabled = true; |
f7ec5b2c | 339 | UI.settingsDisabled(false, rfb); |
91308399 JM |
340 | klass = "VNC_status_normal"; |
341 | break; | |
f00b1e37 JM |
342 | case 'password': |
343 | c.value = "Send Password"; | |
f7ec5b2c | 344 | c.onclick = UI.setPassword; |
f00b1e37 JM |
345 | |
346 | c.disabled = false; | |
347 | cad.disabled = true; | |
f7ec5b2c | 348 | UI.settingsDisabled(true, rfb); |
f00b1e37 JM |
349 | klass = "VNC_status_warn"; |
350 | break; | |
91308399 JM |
351 | default: |
352 | c.disabled = true; | |
160fabf6 | 353 | cad.disabled = true; |
f7ec5b2c | 354 | UI.settingsDisabled(true, rfb); |
91308399 JM |
355 | klass = "VNC_status_warn"; |
356 | break; | |
357 | } | |
358 | ||
359 | if (typeof(msg) !== 'undefined') { | |
360 | s.setAttribute("class", klass); | |
63708ff5 | 361 | sb.setAttribute("class", klass); |
91308399 JM |
362 | s.innerHTML = msg; |
363 | } | |
364 | ||
365 | }, | |
366 | ||
8db09746 | 367 | clipReceive: function(rfb, text) { |
f7ec5b2c | 368 | Util.Debug(">> UI.clipReceive: " + text.substr(0,40) + "..."); |
e4671910 | 369 | $D('VNC_clipboard_text').value = text; |
f7ec5b2c | 370 | Util.Debug("<< UI.clipReceive"); |
8db09746 JM |
371 | }, |
372 | ||
373 | ||
91308399 | 374 | connect: function() { |
f7ec5b2c | 375 | var host, port, password; |
da6dd893 | 376 | |
f7ec5b2c | 377 | UI.closeSettingsMenu(); |
da6dd893 | 378 | |
e4671910 JM |
379 | host = $D('VNC_host').value; |
380 | port = $D('VNC_port').value; | |
381 | password = $D('VNC_password').value; | |
91308399 | 382 | if ((!host) || (!port)) { |
63708ff5 | 383 | throw("Must set host and port"); |
91308399 JM |
384 | } |
385 | ||
f7ec5b2c JM |
386 | UI.rfb.set_encrypt(UI.getSetting('encrypt')); |
387 | UI.rfb.set_true_color(UI.getSetting('true_color')); | |
388 | UI.rfb.set_local_cursor(UI.getSetting('cursor')); | |
389 | UI.rfb.set_shared(UI.getSetting('shared')); | |
390 | UI.rfb.set_connectTimeout(UI.getSetting('connectTimeout')); | |
da6dd893 | 391 | |
f7ec5b2c | 392 | UI.rfb.connect(host, port, password); |
91308399 JM |
393 | }, |
394 | ||
395 | disconnect: function() { | |
f7ec5b2c | 396 | UI.closeSettingsMenu(); |
da6dd893 | 397 | |
f7ec5b2c | 398 | UI.rfb.disconnect(); |
91308399 JM |
399 | }, |
400 | ||
da6dd893 | 401 | canvasBlur: function() { |
f7ec5b2c | 402 | UI.rfb.get_canvas().set_focused(false); |
91308399 JM |
403 | }, |
404 | ||
da6dd893 | 405 | canvasFocus: function() { |
f7ec5b2c | 406 | UI.rfb.get_canvas().set_focused(true); |
91308399 JM |
407 | }, |
408 | ||
409 | clipClear: function() { | |
e4671910 | 410 | $D('VNC_clipboard_text').value = ""; |
f7ec5b2c | 411 | UI.rfb.clipboardPasteFrom(""); |
91308399 JM |
412 | }, |
413 | ||
414 | clipSend: function() { | |
e4671910 | 415 | var text = $D('VNC_clipboard_text').value; |
f7ec5b2c JM |
416 | Util.Debug(">> UI.clipSend: " + text.substr(0,40) + "..."); |
417 | UI.rfb.clipboardPasteFrom(text); | |
418 | Util.Debug("<< UI.clipSend"); | |
91308399 JM |
419 | } |
420 | ||
63708ff5 | 421 | }; |