src/main/webapp/scripts/interface.js

   1
   2 // UI Definition
   3 var GuacamoleUI = {
   4
   5     "LOGOUT_PROMPT" :   "Logging out will disconnect all of your active "
   6                       + "Guacamole sessions. Are you sure you wish to log out?",
   7
   8     /* Detection Constants */
   9
  10     "LONG_PRESS_DETECT_TIMEOUT"     : 800, /* milliseconds */
  11     "LONG_PRESS_MOVEMENT_THRESHOLD" : 10,  /* pixels */
  12     "MENU_CLOSE_DETECT_TIMEOUT"     : 500, /* milliseconds */
  13     "MENU_OPEN_DETECT_TIMEOUT"      : 325, /* milliseconds */
  14     "KEYBOARD_AUTO_RESIZE_INTERVAL" : 30,  /* milliseconds */
  15
  16     /* Animation Constants */
  17
  18     "MENU_SHADE_STEPS"    : 10, /* frames */
  19     "MENU_SHADE_INTERVAL" : 30, /* milliseconds */
  20     "MENU_SHOW_STEPS"     : 5,  /* frames */
  21     "MENU_SHOW_INTERVAL"  : 30, /* milliseconds */
  22
  23     /* OSK Mode Constants */
  24     "OSK_MODE_NATIVE" : 1, /* "Show Keyboard" will show the platform's native OSK */
  25     "OSK_MODE_GUAC"   : 2, /* "Show Keyboard" will show Guac's built-in OSK */
  26
  27     /* UI Elements */
  28
  29     "viewport"    : document.getElementById("viewportClone"),
  30     "display"     : document.getElementById("display"),
  31     "menu"        : document.getElementById("menu"),
  32     "menuControl" : document.getElementById("menuControl"),
  33     "touchMenu"   : document.getElementById("touchMenu"),
  34     "logo"        : document.getElementById("status-logo"),
  35     "eventTarget" : document.getElementById("eventTarget"),
  36
  37     "buttons": {
  38
  39         "showClipboard": document.getElementById("showClipboard"),
  40         "showKeyboard" : document.getElementById("showKeyboard"),
  41         "ctrlAltDelete": document.getElementById("ctrlAltDelete"),
  42         "reconnect"    : document.getElementById("reconnect"),
  43         "logout"       : document.getElementById("logout"),
  44
  45         "touchShowClipboard" : document.getElementById("touchShowClipboard"),
  46         "touchShowKeyboard"  : document.getElementById("touchShowKeyboard"),
  47         "touchLogout"        : document.getElementById("touchLogout")
  48
  49     },
  50
  51     "containers": {
  52         "state"         : document.getElementById("statusDialog"),
  53         "clipboard"     : document.getElementById("clipboardDiv"),
  54         "touchClipboard": document.getElementById("touchClipboardDiv"),
  55         "keyboard"      : document.getElementById("keyboardContainer")
  56     },
  57
  58     "state"          : document.getElementById("statusText"),
  59     "clipboard"      : document.getElementById("clipboard"),
  60     "touchClipboard" : document.getElementById("touchClipboard")
  61
  62 };
  63
  64 // Constant UI initialization and behavior
  65 (function() {
  66
  67     var menu_shaded = false;
  68
  69     var shade_interval = null;
  70     var show_interval = null;
  71
  72     // Cache error image (might not be available when error occurs)
  73     var guacErrorImage = new Image();
  74     guacErrorImage.src = "images/noguacamole-logo-24.png";
  75
  76     // Function for adding a class to an element
  77     var addClass;
  78
  79     // Function for removing a class from an element
  80     var removeClass;
  81
  82     // If Node.classList is supported, implement addClass/removeClass using that
  83     if (Node.classList) {
  84
  85         addClass = function(element, classname) {
  86             element.classList.add(classname);
  87         };
  88
  89         removeClass = function(element, classname) {
  90             element.classList.remove(classname);
  91         };
  92
  93     }
  94
  95     // Otherwise, implement own
  96     else {
  97
  98         addClass = function(element, classname) {
  99
 100             // Simply add new class
 101             element.className += " " + classname;
 102
 103         };
 104
 105         removeClass = function(element, classname) {
 106
 107             // Filter out classes with given name
 108             element.className = element.className.replace(/([^ ]+)[ ]*/g,
 109                 function(match, testClassname, spaces, offset, string) {
 110
 111                     // If same class, remove
 112                     if (testClassname == classname)
 113                         return "";
 114
 115                     // Otherwise, allow
 116                     return match;
 117
 118                 }
 119             );
 120
 121         };
 122
 123     }
 124
 125
 126     GuacamoleUI.hideStatus = function() {
 127         removeClass(document.body, "guac-error");
 128         GuacamoleUI.containers.state.style.visibility = "hidden";
 129         GuacamoleUI.display.style.opacity = "1";
 130     };
 131
 132     GuacamoleUI.showStatus = function(text) {
 133         removeClass(document.body, "guac-error");
 134         GuacamoleUI.containers.state.style.visibility = "visible";
 135         GuacamoleUI.state.textContent = text;
 136         GuacamoleUI.display.style.opacity = "1";
 137     };
 138
 139     GuacamoleUI.showError = function(error) {
 140         addClass(document.body, "guac-error");
 141         GuacamoleUI.state.textContent = error;
 142         GuacamoleUI.display.style.opacity = "0.1";
 143     };
 144
 145     GuacamoleUI.hideTouchMenu = function() {
 146         GuacamoleUI.touchMenu.style.visibility = "hidden";
 147     };
 148
 149     function positionCentered(element) {
 150         element.style.left =
 151             ((GuacamoleUI.viewport.offsetWidth - element.offsetWidth) / 2
 152             + window.pageXOffset)
 153             + "px";
 154
 155         element.style.top =
 156             ((GuacamoleUI.viewport.offsetHeight - element.offsetHeight) / 2
 157             + window.pageYOffset)
 158             + "px";
 159     }
 160
 161     GuacamoleUI.showTouchMenu = function() {
 162         positionCentered(GuacamoleUI.touchMenu);
 163         GuacamoleUI.touchMenu.style.visibility = "visible";
 164     };
 165
 166     GuacamoleUI.hideTouchClipboard = function() {
 167         GuacamoleUI.containers.touchClipboard.style.visibility = "hidden";
 168     };
 169
 170     GuacamoleUI.showTouchClipboard = function() {
 171         positionCentered(GuacamoleUI.containers.touchClipboard);
 172         GuacamoleUI.containers.touchClipboard.style.visibility = "visible";
 173     };
 174
 175     GuacamoleUI.shadeMenu = function() {
 176
 177         if (!menu_shaded) {
 178
 179             var step = Math.floor(GuacamoleUI.menu.offsetHeight / GuacamoleUI.MENU_SHADE_STEPS) + 1;
 180             var offset = 0;
 181             menu_shaded = true;
 182
 183             window.clearInterval(show_interval);
 184             shade_interval = window.setInterval(function() {
 185
 186                 offset -= step;
 187
 188                 GuacamoleUI.menu.style.transform =
 189                 GuacamoleUI.menu.style.WebkitTransform =
 190                 GuacamoleUI.menu.style.MozTransform =
 191                 GuacamoleUI.menu.style.OTransform =
 192                 GuacamoleUI.menu.style.msTransform =
 193
 194                     "translateY(" + offset + "px)";
 195
 196                 if (offset <= -GuacamoleUI.menu.offsetHeight) {
 197                     window.clearInterval(shade_interval);
 198                     GuacamoleUI.menu.style.visiblity = "hidden";
 199                 }
 200
 201             }, GuacamoleUI.MENU_SHADE_INTERVAL);
 202         }
 203
 204     };
 205
 206     GuacamoleUI.showMenu = function() {
 207
 208         if (menu_shaded) {
 209
 210             var step = Math.floor(GuacamoleUI.menu.offsetHeight / GuacamoleUI.MENU_SHOW_STEPS) + 1;
 211             var offset = -GuacamoleUI.menu.offsetHeight;
 212             menu_shaded = false;
 213             GuacamoleUI.menu.style.visiblity = "";
 214
 215             window.clearInterval(shade_interval);
 216             show_interval = window.setInterval(function() {
 217
 218                 offset += step;
 219
 220                 if (offset >= 0) {
 221                     offset = 0;
 222                     window.clearInterval(show_interval);
 223                 }
 224
 225                 GuacamoleUI.menu.style.transform =
 226                 GuacamoleUI.menu.style.WebkitTransform =
 227                 GuacamoleUI.menu.style.MozTransform =
 228                 GuacamoleUI.menu.style.OTransform =
 229                 GuacamoleUI.menu.style.msTransform =
 230
 231                     "translateY(" + offset + "px)";
 232
 233             }, GuacamoleUI.MENU_SHOW_INTERVAL);
 234         }
 235
 236     };
 237
 238     // Show/Hide clipboard
 239     GuacamoleUI.buttons.showClipboard.onclick = function() {
 240
 241         var displayed = GuacamoleUI.containers.clipboard.style.display;
 242         if (displayed != "block") {
 243             GuacamoleUI.containers.clipboard.style.display = "block";
 244             GuacamoleUI.buttons.showClipboard.innerHTML = "Hide Clipboard";
 245         }
 246         else {
 247             GuacamoleUI.containers.clipboard.style.display = "none";
 248             GuacamoleUI.buttons.showClipboard.innerHTML = "Show Clipboard";
 249             GuacamoleUI.clipboard.onchange();
 250         }
 251
 252     };
 253
 254     GuacamoleUI.buttons.touchShowClipboard.onclick = function() {
 255         GuacamoleUI.hideTouchMenu();
 256         GuacamoleUI.showTouchClipboard();
 257     };
 258
 259     // Show/Hide keyboard
 260     var keyboardResizeInterval = null;
 261     GuacamoleUI.buttons.showKeyboard.onclick = function() {
 262
 263         // If Guac OSK shown, hide it.
 264         var displayed = GuacamoleUI.containers.keyboard.style.display;
 265         if (displayed == "block") {
 266             GuacamoleUI.containers.keyboard.style.display = "none";
 267             GuacamoleUI.buttons.showKeyboard.textContent = "Show Keyboard";
 268
 269             window.onresize = null;
 270             window.clearInterval(keyboardResizeInterval);
 271         }
 272
 273         // Otherwise, show it
 274         else {
 275
 276             // Ensure event target is NOT focused if we are using the Guac OSK.
 277             GuacamoleUI.eventTarget.blur();
 278
 279             GuacamoleUI.containers.keyboard.style.display = "block";
 280             GuacamoleUI.buttons.showKeyboard.textContent = "Hide Keyboard";
 281
 282             // Automatically update size
 283             window.onresize = updateKeyboardSize;
 284             keyboardResizeInterval = window.setInterval(updateKeyboardSize,
 285                 GuacamoleUI.KEYBOARD_AUTO_RESIZE_INTERVAL);
 286
 287             updateKeyboardSize();
 288
 289         }
 290
 291     };
 292
 293     // Touch-specific keyboard show
 294     GuacamoleUI.buttons.touchShowKeyboard.onclick =
 295         function(e) {
 296
 297             // Center event target in case browser automatically centers
 298             // input fields on focus.
 299             GuacamoleUI.eventTarget.style.left =
 300                 (window.pageXOffset + GuacamoleUI.viewport.offsetWidth / 2) + "px";
 301
 302             GuacamoleUI.eventTarget.style.top =
 303                 (window.pageYOffset + GuacamoleUI.viewport.offsetHeight / 2) + "px";
 304
 305             GuacamoleUI.eventTarget.focus();
 306             GuacamoleUI.hideTouchMenu();
 307
 308         };
 309
 310     // Logout
 311     GuacamoleUI.buttons.logout.onclick =
 312     GuacamoleUI.buttons.touchLogout.onclick =
 313         function() {
 314
 315             // Logout after warning user about session disconnect
 316             if (confirm(GuacamoleUI.LOGOUT_PROMPT)) {
 317                 window.location.href = "logout";
 318                 GuacamoleUI.hideTouchMenu();
 319             }
 320
 321         };
 322
 323     // Timeouts for detecting if users wants menu to open or close
 324     var detectMenuOpenTimeout = null;
 325     var detectMenuCloseTimeout = null;
 326
 327     // Clear detection timeouts
 328     GuacamoleUI.resetMenuDetect = function() {
 329
 330         if (detectMenuOpenTimeout != null) {
 331             window.clearTimeout(detectMenuOpenTimeout);
 332             detectMenuOpenTimeout = null;
 333         }
 334
 335         if (detectMenuCloseTimeout != null) {
 336             window.clearTimeout(detectMenuCloseTimeout);
 337             detectMenuCloseTimeout = null;
 338         }
 339
 340     };
 341
 342     // Initiate detection of menu open action. If not canceled through some
 343     // user event, menu will open.
 344     GuacamoleUI.startMenuOpenDetect = function() {
 345
 346         if (!detectMenuOpenTimeout) {
 347
 348             // Clear detection state
 349             GuacamoleUI.resetMenuDetect();
 350
 351             // Wait and then show menu
 352             detectMenuOpenTimeout = window.setTimeout(function() {
 353
 354                 // If menu opened via mouse, do not show native OSK
 355                 GuacamoleUI.oskMode = GuacamoleUI.OSK_MODE_GUAC;
 356
 357                 GuacamoleUI.showMenu();
 358                 detectMenuOpenTimeout = null;
 359             }, GuacamoleUI.MENU_OPEN_DETECT_TIMEOUT);
 360
 361         }
 362
 363     };
 364
 365     // Initiate detection of menu close action. If not canceled through some
 366     // user mouse event, menu will close.
 367     GuacamoleUI.startMenuCloseDetect = function() {
 368
 369         if (!detectMenuCloseTimeout) {
 370
 371             // Clear detection state
 372             GuacamoleUI.resetMenuDetect();
 373
 374             // Wait and then shade menu
 375             detectMenuCloseTimeout = window.setTimeout(function() {
 376                 GuacamoleUI.shadeMenu();
 377                 detectMenuCloseTimeout = null;
 378             }, GuacamoleUI.MENU_CLOSE_DETECT_TIMEOUT);
 379
 380         }
 381
 382     };
 383
 384     // Show menu if mouseover any part of menu
 385     GuacamoleUI.menu.addEventListener('mouseover', GuacamoleUI.showMenu, true);
 386
 387     // Stop detecting menu state change intents if mouse is over menu
 388     GuacamoleUI.menu.addEventListener('mouseover', GuacamoleUI.resetMenuDetect, true);
 389
 390     // When mouse hovers over top of screen, start detection of intent to open menu
 391     GuacamoleUI.menuControl.addEventListener('mousemove', GuacamoleUI.startMenuOpenDetect, true);
 392
 393     var long_press_start_x = 0;
 394     var long_press_start_y = 0;
 395     var menuShowLongPressTimeout = null;
 396
 397     GuacamoleUI.startLongPressDetect = function() {
 398
 399         if (!menuShowLongPressTimeout) {
 400
 401             menuShowLongPressTimeout = window.setTimeout(function() {
 402
 403                 menuShowLongPressTimeout = null;
 404
 405                 // Assume native OSK if menu shown via long-press
 406                 GuacamoleUI.oskMode = GuacamoleUI.OSK_MODE_NATIVE;
 407                 GuacamoleUI.showTouchMenu();
 408
 409             }, GuacamoleUI.LONG_PRESS_DETECT_TIMEOUT);
 410
 411         }
 412     };
 413
 414     GuacamoleUI.stopLongPressDetect = function() {
 415         window.clearTimeout(menuShowLongPressTimeout);
 416         menuShowLongPressTimeout = null;
 417     };
 418
 419     // Detect long-press at bottom of screen
 420     GuacamoleUI.display.addEventListener('touchstart', function(e) {
 421
 422         // Close menu if shown
 423         GuacamoleUI.shadeMenu();
 424         GuacamoleUI.hideTouchMenu();
 425         GuacamoleUI.hideTouchClipboard();
 426
 427         // Record touch location
 428         if (e.touches.length == 1) {
 429             var touch = e.touches[0];
 430             long_press_start_x = touch.screenX;
 431             long_press_start_y = touch.screenY;
 432         }
 433
 434         // Start detection
 435         GuacamoleUI.startLongPressDetect();
 436
 437     }, true);
 438
 439     // Stop detection if touch moves significantly
 440     GuacamoleUI.display.addEventListener('touchmove', function(e) {
 441
 442         // If touch distance from start exceeds threshold, cancel long press
 443         var touch = e.touches[0];
 444         if (Math.abs(touch.screenX - long_press_start_x) >= GuacamoleUI.LONG_PRESS_MOVEMENT_THRESHOLD
 445             || Math.abs(touch.screenY - long_press_start_y) >= GuacamoleUI.LONG_PRESS_MOVEMENT_THRESHOLD)
 446             GuacamoleUI.stopLongPressDetect();
 447
 448     }, true);
 449
 450     // Stop detection if press stops
 451     GuacamoleUI.display.addEventListener('touchend', GuacamoleUI.stopLongPressDetect, true);
 452
 453     // Close menu on mouse movement
 454     GuacamoleUI.display.addEventListener('mousemove', GuacamoleUI.startMenuCloseDetect, true);
 455     GuacamoleUI.display.addEventListener('mousedown', GuacamoleUI.startMenuCloseDetect, true);
 456
 457     // Reconnect button
 458     GuacamoleUI.buttons.reconnect.onclick = function() {
 459         window.location.reload();
 460     };
 461
 462     // On-screen keyboard
 463     GuacamoleUI.keyboard = new Guacamole.OnScreenKeyboard("layouts/en-us-qwerty-mobile.xml");
 464     GuacamoleUI.containers.keyboard.appendChild(GuacamoleUI.keyboard.getElement());
 465
 466     // Function for automatically updating keyboard size
 467     var lastKeyboardWidth;
 468     function updateKeyboardSize() {
 469         var currentSize = GuacamoleUI.keyboard.getElement().offsetWidth;
 470         if (lastKeyboardWidth != currentSize) {
 471             GuacamoleUI.keyboard.resize(currentSize);
 472             lastKeyboardWidth = currentSize;
 473         }
 474     };
 475
 476     // Turn off autocorrect and autocapitalization on eventTarget
 477     GuacamoleUI.eventTarget.setAttribute("autocorrect", "off");
 478     GuacamoleUI.eventTarget.setAttribute("autocapitalize", "off");
 479
 480     // Automatically reposition event target on scroll
 481     window.addEventListener("scroll", function() {
 482         GuacamoleUI.eventTarget.style.left = window.pageXOffset + "px";
 483         GuacamoleUI.eventTarget.style.top = window.pageYOffset + "px";
 484     });
 485
 486 })();
 487
 488 // Tie UI events / behavior to a specific Guacamole client
 489 GuacamoleUI.attach = function(guac) {
 490
 491     var title_prefix = null;
 492     var connection_name = "Guacamole";
 493
 494     var guac_display = guac.getDisplay();
 495
 496     // Set document title appropriately, based on prefix and connection name
 497     function updateTitle() {
 498
 499         // Use title prefix if present
 500         if (title_prefix) {
 501
 502             document.title = title_prefix;
 503
 504             // Include connection name, if present
 505             if (connection_name)
 506                 document.title += " " + connection_name;
 507
 508         }
 509
 510         // Otherwise, just set to connection name
 511         else if (connection_name)
 512             document.title = connection_name;
 513
 514     }
 515
 516     // When mouse enters display, start detection of intent to close menu
 517     guac_display.addEventListener('mouseover', GuacamoleUI.startMenuCloseDetect, true);
 518
 519     guac_display.onclick = function(e) {
 520         e.preventDefault();
 521         return false;
 522     };
 523
 524     // Mouse
 525     var mouse = new Guacamole.Mouse(guac_display);
 526     mouse.onmousedown = mouse.onmouseup = mouse.onmousemove =
 527         function(mouseState) {
 528
 529             // Determine mouse position within view
 530             var mouse_view_x = mouseState.x + guac_display.offsetLeft - window.pageXOffset;
 531             var mouse_view_y = mouseState.y + guac_display.offsetTop  - window.pageYOffset;
 532
 533             // Determine viewport dimensioins
 534             var view_width  = GuacamoleUI.viewport.offsetWidth;
 535             var view_height = GuacamoleUI.viewport.offsetHeight;
 536
 537             // Determine scroll amounts based on mouse position relative to document
 538
 539             var scroll_amount_x;
 540             if (mouse_view_x > view_width)
 541                 scroll_amount_x = mouse_view_x - view_width;
 542             else if (mouse_view_x < 0)
 543                 scroll_amount_x = mouse_view_x;
 544             else
 545                 scroll_amount_x = 0;
 546
 547             var scroll_amount_y;
 548             if (mouse_view_y > view_height)
 549                 scroll_amount_y = mouse_view_y - view_height;
 550             else if (mouse_view_y < 0)
 551                 scroll_amount_y = mouse_view_y;
 552             else
 553                 scroll_amount_y = 0;
 554
 555             // Scroll (if necessary) to keep mouse on screen.
 556             window.scrollBy(scroll_amount_x, scroll_amount_y);
 557
 558             // Send mouse event
 559             guac.sendMouseState(mouseState);
 560
 561         };
 562
 563     // Keyboard
 564     var keyboard = new Guacamole.Keyboard(document);
 565
 566     // Monitor whether the event target is focused
 567     var eventTargetFocused = false;
 568
 569     // Save length for calculation of changed value
 570     var currentLength = GuacamoleUI.eventTarget.value.length;
 571
 572     GuacamoleUI.eventTarget.onfocus = function() {
 573         eventTargetFocused = true;
 574         GuacamoleUI.eventTarget.value = "";
 575         currentLength = 0;
 576     };
 577
 578     GuacamoleUI.eventTarget.onblur = function() {
 579         eventTargetFocused = false;
 580     };
 581
 582     // If text is input directly into event target without typing (as with
 583     // voice input, for example), type automatically.
 584     GuacamoleUI.eventTarget.oninput = function(e) {
 585
 586         // Calculate current length and change in length
 587         var oldLength = currentLength;
 588         currentLength = GuacamoleUI.eventTarget.value.length;
 589
 590         // If deleted or replaced text, ignore
 591         if (currentLength <= oldLength)
 592             return;
 593
 594         // Get changed text
 595         var text = GuacamoleUI.eventTarget.value.substring(oldLength);
 596
 597         // Send each character
 598         for (var i=0; i<text.length; i++) {
 599
 600             // Get char code
 601             var charCode = text.charCodeAt(i);
 602
 603             // Convert to keysym
 604             var keysym = 0x003F; // Default to a question mark
 605             if (charCode >= 0x0000 && charCode <= 0x00FF)
 606                 keysym = charCode;
 607             else if (charCode >= 0x0100 && charCode <= 0x10FFFF)
 608                 keysym = 0x01000000 | charCode;
 609
 610             // Send keysym only if not already pressed
 611             if (!keyboard.pressed[keysym]) {
 612
 613                 // Press and release key
 614                 guac.sendKeyEvent(1, keysym);
 615                 guac.sendKeyEvent(0, keysym);
 616
 617             }
 618
 619         }
 620
 621     }
 622
 623     function isTypableCharacter(keysym) {
 624         return (keysym & 0xFFFF00) != 0xFF00;
 625     }
 626
 627     function disableKeyboard() {
 628         keyboard.onkeydown = null;
 629         keyboard.onkeyup = null;
 630     }
 631
 632     function enableKeyboard() {
 633
 634         keyboard.onkeydown = function (keysym) {
 635             guac.sendKeyEvent(1, keysym);
 636             return eventTargetFocused && isTypableCharacter(keysym);
 637         };
 638
 639         keyboard.onkeyup = function (keysym) {
 640             guac.sendKeyEvent(0, keysym);
 641             return eventTargetFocused && isTypableCharacter(keysym);
 642         };
 643
 644     }
 645
 646     // Enable keyboard by default
 647     enableKeyboard();
 648
 649     // Handle client state change
 650     guac.onstatechange = function(clientState) {
 651
 652         switch (clientState) {
 653
 654             // Idle
 655             case 0:
 656                 GuacamoleUI.showStatus("Idle.");
 657                 title_prefix = "[Idle]";
 658                 break;
 659
 660             // Connecting
 661             case 1:
 662                 GuacamoleUI.shadeMenu();
 663                 GuacamoleUI.showStatus("Connecting...");
 664                 title_prefix = "[Connecting...]";
 665                 break;
 666
 667             // Connected + waiting
 668             case 2:
 669                 GuacamoleUI.showStatus("Connected, waiting for first update...");
 670                 title_prefix = "[Waiting...]";
 671                 break;
 672
 673             // Connected
 674             case 3:
 675                 GuacamoleUI.hideStatus();
 676                 title_prefix = null;
 677                 break;
 678
 679             // Disconnecting
 680             case 4:
 681                 GuacamoleUI.showStatus("Disconnecting...");
 682                 title_prefix = "[Disconnecting...]";
 683                 break;
 684
 685             // Disconnected
 686             case 5:
 687                 GuacamoleUI.showStatus("Disconnected.");
 688                 title_prefix = "[Disconnected]";
 689                 break;
 690
 691             // Unknown status code
 692             default:
 693                 GuacamoleUI.showStatus("[UNKNOWN STATUS]");
 694
 695         }
 696
 697         updateTitle();
 698     };
 699
 700     // Name instruction handler
 701     guac.onname = function(name) {
 702         connection_name = name;
 703         updateTitle();
 704     };
 705
 706     // Error handler
 707     guac.onerror = function(error) {
 708
 709         // Disconnect, if connected
 710         guac.disconnect();
 711
 712         // Display error message
 713         GuacamoleUI.showError(error);
 714
 715     };
 716
 717     // Disconnect on close
 718     window.onunload = function() {
 719         guac.disconnect();
 720     };
 721
 722     // Handle clipboard events
 723     GuacamoleUI.clipboard.onchange = function() {
 724
 725         var text = GuacamoleUI.clipboard.value;
 726         GuacamoleUI.touchClipboard.value = text;
 727         guac.setClipboard(text);
 728
 729     };
 730
 731     GuacamoleUI.touchClipboard.onchange = function() {
 732
 733         var text = GuacamoleUI.touchClipboard.value;
 734         GuacamoleUI.clipboard.value = text;
 735         guac.setClipboard(text);
 736
 737     };
 738
 739     // Ignore keypresses when clipboard is focused
 740     GuacamoleUI.clipboard.onfocus =
 741     GuacamoleUI.touchClipboard.onfocus = function() {
 742         disableKeyboard();
 743     };
 744
 745     // Capture keypresses when clipboard is not focused
 746     GuacamoleUI.clipboard.onblur =
 747     GuacamoleUI.touchClipboard.onblur = function() {
 748         enableKeyboard();
 749     };
 750
 751     // Server copy handler
 752     guac.onclipboard = function(data) {
 753         GuacamoleUI.clipboard.value = data;
 754         GuacamoleUI.touchClipboard.value = data;
 755     };
 756
 757     GuacamoleUI.keyboard.onkeydown = function(keysym) {
 758         guac.sendKeyEvent(1, keysym);
 759     };
 760
 761     GuacamoleUI.keyboard.onkeyup = function(keysym) {
 762         guac.sendKeyEvent(0, keysym);
 763     };
 764
 765     // Send Ctrl-Alt-Delete
 766     GuacamoleUI.buttons.ctrlAltDelete.onclick = function() {
 767
 768         var KEYSYM_CTRL   = 0xFFE3;
 769         var KEYSYM_ALT    = 0xFFE9;
 770         var KEYSYM_DELETE = 0xFFFF;
 771
 772         guac.sendKeyEvent(1, KEYSYM_CTRL);
 773         guac.sendKeyEvent(1, KEYSYM_ALT);
 774         guac.sendKeyEvent(1, KEYSYM_DELETE);
 775         guac.sendKeyEvent(0, KEYSYM_DELETE);
 776         guac.sendKeyEvent(0, KEYSYM_ALT);
 777         guac.sendKeyEvent(0, KEYSYM_CTRL);
 778     };
 779
 780 };