// UI Definition
var GuacamoleUI = {
+ "viewport" : document.getElementById("viewportClone"),
"display" : document.getElementById("display"),
"menu" : document.getElementById("menu"),
"menuControl" : document.getElementById("menuControl"),
+ "touchMenu" : document.getElementById("touchMenu"),
"logo" : document.getElementById("status-logo"),
- "state" : document.getElementById("state"),
+ "eventTarget" : document.getElementById("eventTarget"),
"buttons": {
},
"containers": {
- "error" : document.getElementById("errorDialog"),
+ "state" : document.getElementById("statusDialog"),
"clipboard": document.getElementById("clipboardDiv"),
"keyboard" : document.getElementById("keyboardContainer")
},
- "error" : document.getElementById("errorText"),
+ "state" : document.getElementById("statusText"),
"clipboard" : document.getElementById("clipboard")
};
var guacErrorImage = new Image();
guacErrorImage.src = "images/noguacamole-logo-24.png";
- GuacamoleUI.showError = function(error) {
+ // Function for adding a class to an element
+ var addClass;
+
+ // Function for removing a class from an element
+ var removeClass;
+
+ // If Node.classList is supported, implement addClass/removeClass using that
+ if (Node.classList) {
+
+ addClass = function(element, classname) {
+ element.classList.add(classname);
+ };
+
+ removeClass = function(element, classname) {
+ element.classList.remove(classname);
+ };
+
+ }
+
+ // Otherwise, implement own
+ else {
+
+ addClass = function(element, classname) {
+
+ // Simply add new class
+ element.className += " " + classname;
+
+ };
+
+ removeClass = function(element, classname) {
- GuacamoleUI.menu.className = "error";
- GuacamoleUI.display.className += " guac-error";
+ // Filter out classes with given name
+ element.className = element.className.replace(/([^ ]+)[ ]*/g,
+ function(match, testClassname, spaces, offset, string) {
- GuacamoleUI.logo.src = guacErrorImage.src;
- GuacamoleUI.error.textContent = error;
- GuacamoleUI.containers.error.style.visibility = "visible";
+ // If same class, remove
+ if (testClassname == classname)
+ return "";
+
+ // Otherwise, allow
+ return match;
+
+ }
+ );
+ };
+
+ }
+
+
+ GuacamoleUI.hideStatus = function() {
+ removeClass(document.body, "guac-error");
+ GuacamoleUI.containers.state.style.visibility = "hidden";
+ GuacamoleUI.display.style.opacity = "1";
+ };
+
+ GuacamoleUI.showStatus = function(text) {
+ removeClass(document.body, "guac-error");
+ GuacamoleUI.containers.state.style.visibility = "visible";
+ GuacamoleUI.state.textContent = text;
+ GuacamoleUI.display.style.opacity = "1";
+ };
+
+ GuacamoleUI.showError = function(error) {
+ addClass(document.body, "guac-error");
+ GuacamoleUI.state.textContent = error;
+ GuacamoleUI.display.style.opacity = "0.1";
};
GuacamoleUI.shadeMenu = function() {
};
+ // Assume no native OSK by default
+ GuacamoleUI.nativeOSK = false;
+
// Show/Hide keyboard
+ var keyboardResizeInterval = null;
GuacamoleUI.buttons.showKeyboard.onclick = function() {
+ // If we think the platform has a native OSK, use the event target to
+ // cause it to display.
+ if (GuacamoleUI.nativeOSK) {
+ GuacamoleUI.eventTarget.focus();
+ return;
+ }
+
var displayed = GuacamoleUI.containers.keyboard.style.display;
if (displayed != "block") {
GuacamoleUI.containers.keyboard.style.display = "block";
GuacamoleUI.buttons.showKeyboard.textContent = "Hide Keyboard";
+
+ // Automatically update size
+ window.onresize = updateKeyboardSize;
+ keyboardResizeInterval = window.setInterval(updateKeyboardSize, 30);
+
+ updateKeyboardSize();
}
else {
GuacamoleUI.containers.keyboard.style.display = "none";
GuacamoleUI.buttons.showKeyboard.textContent = "Show Keyboard";
+
+ window.onresize = null;
+ window.clearInterval(keyboardResizeInterval);
}
};
window.location.href = "logout";
};
+ // Timeouts for detecting if users wants menu to open or close
var detectMenuOpenTimeout = null;
var detectMenuCloseTimeout = null;
- GuacamoleUI.menu.addEventListener('mouseover', function() {
+ // Clear detection timeouts
+ GuacamoleUI.resetMenuDetect = function() {
+
+ if (detectMenuOpenTimeout != null) {
+ window.clearTimeout(detectMenuOpenTimeout);
+ detectMenuOpenTimeout = null;
+ }
- // If we were waiting for menu close, we're not anymore
if (detectMenuCloseTimeout != null) {
window.clearTimeout(detectMenuCloseTimeout);
detectMenuCloseTimeout = null;
}
- }, true);
+ };
- function menuShowHandler() {
+ // Initiate detection of menu open action. If not canceled through some
+ // user event, menu will open.
+ GuacamoleUI.startMenuOpenDetect = function() {
- // If we were waiting for menu close, we're not anymore
- if (detectMenuCloseTimeout != null) {
- window.clearTimeout(detectMenuCloseTimeout);
- detectMenuCloseTimeout = null;
- }
-
- // Clear old timeout if mouse moved while we were waiting
- if (detectMenuOpenTimeout != null) {
- window.clearTimeout(detectMenuOpenTimeout);
- detectMenuOpenTimeout = null;
- }
+ if (!detectMenuOpenTimeout) {
- // If not alread waiting, wait before showing menu
- detectMenuOpenTimeout = window.setTimeout(function() {
- GuacamoleUI.showMenu();
- detectMenuOpenTimeout = null;
- }, 325);
+ // Clear detection state
+ GuacamoleUI.resetMenuDetect();
- }
+ // Wait and then show menu
+ detectMenuOpenTimeout = window.setTimeout(function() {
- // Show menu of mouseover any part of menu
- GuacamoleUI.menu.addEventListener('mouseover', GuacamoleUI.showMenu, true);
+ // If menu opened via mouse, do not show native OSK
+ GuacamoleUI.nativeOSK = false;
+
+ GuacamoleUI.showMenu();
+ detectMenuOpenTimeout = null;
+ }, 325);
- // When mouse hovers over top of screen, start detection of mouse hover
- GuacamoleUI.menuControl.addEventListener('mousemove', menuShowHandler, true);
- document.addEventListener('mouseout', function(e) {
-
- // Get parent of the element the mouse pointer is leaving
- if (!e) e = window.event;
- var target = e.relatedTarget || e.toElement;
-
- // Ensure target is not menu nor child of menu
- var targetParent = target;
- while (targetParent != null) {
- if (targetParent == document) return;
- targetParent = targetParent.parentNode;
}
- menuShowHandler();
-
- }, true);
+ };
- GuacamoleUI.display.addEventListener('mouseover', function() {
+ // Initiate detection of menu close action. If not canceled through some
+ // user mouse event, menu will close.
+ GuacamoleUI.startMenuCloseDetect = function() {
- // If we were detecting menu open, stop it
- if (detectMenuOpenTimeout != null) {
- window.clearTimeout(detectMenuOpenTimeout);
- detectMenuOpenTimeout = null;
- }
+ if (!detectMenuCloseTimeout) {
- // If not already waiting, start detection of mouse leave
- if (detectMenuCloseTimeout == null) {
+ // Clear detection state
+ GuacamoleUI.resetMenuDetect();
+
+ // Wait and then shade menu
detectMenuCloseTimeout = window.setTimeout(function() {
GuacamoleUI.shadeMenu();
detectMenuCloseTimeout = null;
}, 500);
+
+ }
+
+ };
+
+ // Show menu if mouseover any part of menu
+ GuacamoleUI.menu.addEventListener('mouseover', GuacamoleUI.showMenu, true);
+
+ // Stop detecting menu state change intents if mouse is over menu
+ GuacamoleUI.menu.addEventListener('mouseover', GuacamoleUI.resetMenuDetect, true);
+
+ // When mouse hovers over top of screen, start detection of intent to open menu
+ GuacamoleUI.menuControl.addEventListener('mousemove', GuacamoleUI.startMenuOpenDetect, true);
+
+ var menuShowLongPressTimeout = null;
+
+ GuacamoleUI.startLongPressDetect = function() {
+
+ if (!menuShowLongPressTimeout) {
+
+ menuShowLongPressTimeout = window.setTimeout(function() {
+
+ menuShowLongPressTimeout = null;
+
+ // Assume native OSK if menu shown via long-press
+ GuacamoleUI.nativeOSK = true;
+ GuacamoleUI.showMenu();
+
+ }, 800);
+
}
+ };
- }, true);
+ GuacamoleUI.stopLongPressDetect = function() {
+ window.clearTimeout(menuShowLongPressTimeout);
+ menuShowLongPressTimeout = null;
+ };
+
+ // Reset event target (add content, reposition cursor in middle.
+ GuacamoleUI.resetEventTarget = function() {
+ GuacamoleUI.eventTarget.value = "GUAC";
+ GuacamoleUI.eventTarget.selectionStart =
+ GuacamoleUI.eventTarget.selectionEnd = 2;
+ };
+
+ // Detect long-press at bottom of screen
+ document.body.addEventListener('touchstart', GuacamoleUI.startLongPressDetect, true);
// Reconnect button
GuacamoleUI.buttons.reconnect.onclick = function() {
};
// On-screen keyboard
- GuacamoleUI.keyboard = new Guacamole.OnScreenKeyboard("layouts/en-us-qwerty.xml");
- GuacamoleUI.containers.keyboard.appendChild(GuacamoleUI.keyboard);
+ GuacamoleUI.keyboard = new Guacamole.OnScreenKeyboard("layouts/en-us-qwerty-mobile.xml");
+ GuacamoleUI.containers.keyboard.appendChild(GuacamoleUI.keyboard.getElement());
+
+ // Function for automatically updating keyboard size
+ var lastKeyboardWidth;
+ function updateKeyboardSize() {
+ var currentSize = GuacamoleUI.keyboard.getElement().offsetWidth;
+ if (lastKeyboardWidth != currentSize) {
+ GuacamoleUI.keyboard.resize(currentSize);
+ lastKeyboardWidth = currentSize;
+ }
+ };
})();
// Tie UI events / behavior to a specific Guacamole client
GuacamoleUI.attach = function(guac) {
+ var guac_display = guac.getDisplay();
+
+ // When mouse enters display, start detection of intent to close menu
+ guac_display.addEventListener('mouseover', GuacamoleUI.startMenuCloseDetect, true);
+
+ guac_display.onclick = function(e) {
+ e.preventDefault();
+ return false;
+ };
+
// Mouse
- var mouse = new Guacamole.Mouse(GuacamoleUI.display);
+ var mouse = new Guacamole.Mouse(guac_display);
mouse.onmousedown = mouse.onmouseup = mouse.onmousemove =
function(mouseState) {
+
+ // Determine mouse position within view
+ var mouse_view_x = mouseState.x + guac_display.offsetLeft - window.pageXOffset;
+ var mouse_view_y = mouseState.y + guac_display.offsetTop - window.pageYOffset;
+
+ // Determine viewport dimensioins
+ var view_width = GuacamoleUI.viewport.offsetWidth;
+ var view_height = GuacamoleUI.viewport.offsetHeight;
+
+ // Determine scroll amounts based on mouse position relative to document
+
+ var scroll_amount_x;
+ if (mouse_view_x > view_width)
+ scroll_amount_x = mouse_view_x - view_width;
+ else if (mouse_view_x < 0)
+ scroll_amount_x = mouse_view_x;
+ else
+ scroll_amount_x = 0;
+
+ var scroll_amount_y;
+ if (mouse_view_y > view_height)
+ scroll_amount_y = mouse_view_y - view_height;
+ else if (mouse_view_y < 0)
+ scroll_amount_y = mouse_view_y;
+ else
+ scroll_amount_y = 0;
+
+ // Scroll (if necessary) to keep mouse on screen.
+ window.scrollBy(scroll_amount_x, scroll_amount_y);
+
+ // Hide menu on movement
+ GuacamoleUI.startMenuCloseDetect();
+
+ // Stop detecting long presses if mouse is being used
+ GuacamoleUI.stopLongPressDetect();
+
+ // Send mouse event
guac.sendMouseState(mouseState);
+
};
// Keyboard
function enableKeyboard() {
keyboard.onkeydown =
function (keysym) {
+
+ // If we're using native OSK, ensure event target is reset
+ // on each key event.
+ if (GuacamoleUI.nativeOSK)
+ GuacamoleUI.resetEventTarget();
+
guac.sendKeyEvent(1, keysym);
};
// Idle
case 0:
- GuacamoleUI.state.textContent = "Idle."
+ GuacamoleUI.showStatus("Idle.");
break;
// Connecting
case 1:
- GuacamoleUI.state.textContent = "Connecting...";
+ GuacamoleUI.shadeMenu();
+ GuacamoleUI.showStatus("Connecting...");
break;
// Connected + waiting
case 2:
- GuacamoleUI.state.textContent = "Connected, waiting for first update...";
+ GuacamoleUI.showStatus("Connected, waiting for first update...");
break;
// Connected
case 3:
+ GuacamoleUI.hideStatus();
GuacamoleUI.display.className =
GuacamoleUI.display.className.replace(/guac-loading/, '');
GuacamoleUI.menu.className = "connected";
- GuacamoleUI.state.textContent = "Connected.";
- GuacamoleUI.shadeMenu();
break;
// Disconnecting
case 4:
- GuacamoleUI.state.textContent = "Disconnecting...";
+ GuacamoleUI.showStatus("Disconnecting...");
break;
// Disconnected
case 5:
- GuacamoleUI.state.textContent = "Disconnected.";
+ GuacamoleUI.showStatus("Disconnected.");
break;
// Unknown status code
default:
- GuacamoleUI.state.textContent = "Unknown";
+ GuacamoleUI.showStatus("[UNKNOWN STATUS]");
}
};
// Display error message
GuacamoleUI.showError(error);
-
- // Show error by desaturating display
- var layers = guac.getLayers();
- for (var i=0; i<layers.length; i++) {
- layers[i].filter(desaturateFilter);
- }
-
- // Filter for desaturation
- function desaturateFilter(data, width, height) {
-
- for (var i=0; i<data.length; i+=4) {
-
- // Get RGB values
- var r = data[i];
- var g = data[i+1];
- var b = data[i+2];
-
- // Desaturate
- var v = Math.max(r, g, b) / 2;
- data[i] = v;
- data[i+1] = v;
- data[i+2] = v;
-
- }
-
- }
};
GuacamoleUI.clipboard.value = data;
};
- GuacamoleUI.keyboard.setKeyPressedHandler(
- function(keysym) {
- guac.sendKeyEvent(1, keysym);
- }
- );
+ GuacamoleUI.keyboard.onkeydown = function(keysym) {
+ guac.sendKeyEvent(1, keysym);
+ };
- GuacamoleUI.keyboard.setKeyReleasedHandler(
- function(keysym) {
- guac.sendKeyEvent(0, keysym);
- }
- );
+ GuacamoleUI.keyboard.onkeyup = function(keysym) {
+ guac.sendKeyEvent(0, keysym);
+ };
// Send Ctrl-Alt-Delete
GuacamoleUI.buttons.ctrlAltDelete.onclick = function() {
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