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Ignore unknown key events.

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This commit is contained in:
Michael Jumper
2012-05-16 00:52:16 -07:00
parent 49fa2723a9
commit 0399689177
1 changed files with 15 additions and 5 deletions
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20
guacamole-common-js/src/main/resources/keyboard.js
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@@ -425,6 +425,12 @@ Guacamole.Keyboard = function(element) {
if (window.event) keynum = window.event.keyCode;
else if (e.which) keynum = e.which;
// Ignore any unknown key events
if (keynum == 0) {
e.preventDefault();
return;
}
// Ctrl/Alt/Shift
if (keynum == 16) guac_keyboard.modifiers.shift = true;
else if (keynum == 17) guac_keyboard.modifiers.ctrl = true;
@@ -465,7 +471,7 @@ Guacamole.Keyboard = function(element) {
element.onkeypress = function(e) {
// Only intercept if handler set
if (!guac_keyboard.onkeydown) return true;
if (!guac_keyboard.onkeydown) return;
var keynum;
if (window.event) keynum = window.event.keyCode;
@@ -485,20 +491,24 @@ Guacamole.Keyboard = function(element) {
if (!deferred_keypress)
deferred_keypress = window.setTimeout(fireKeyPress, 0);
return false;
};
// When key released
element.onkeyup = function(e) {
// Only intercept if handler set
if (!guac_keyboard.onkeyup) return true;
if (!guac_keyboard.onkeyup) return;
e.preventDefault();
var keynum;
if (window.event) keynum = window.event.keyCode;
else if (e.which) keynum = e.which;
// Ignore any unknown key events
if (keynum == 0)
return;
// Ctrl/Alt/Shift
if (keynum == 16) guac_keyboard.modifiers.shift = false;
else if (keynum == 17) guac_keyboard.modifiers.ctrl = false;
@@ -513,7 +523,7 @@ Guacamole.Keyboard = function(element) {
keydownChar[keynum] = null;
// Send release event
return sendKeyReleased(lastKeyDownChar);
sendKeyReleased(lastKeyDownChar);
};