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Only release ctrl/alt in keypress handler if character is not a control character. Beware that this causes a regression in Firefox as it sends keypress for Alt+combinations and Ctrl+combinations even though they will not type anything.

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This commit is contained in:
Michael Jumper
2012-05-14 13:44:17 -07:00
parent d3f5d003ea
commit b8ad66ab6e
1 changed files with 20 additions and 10 deletions
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30
guacamole-common-js/src/main/resources/keyboard.js
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@@ -292,13 +292,22 @@ Guacamole.Keyboard = function(element) {
}
function getKeySymFromCharCode(keyCode) {
function isControlCharacter(codepoint) {
return codepoint <= 0x1F || (codepoint >= 0x7F && codepoint <= 0x9F);
}
if (keyCode >= 0x0000 && keyCode <= 0x00FF)
return keyCode;
function getKeySymFromCharCode(codepoint) {
if (keyCode >= 0x0100 && keyCode <= 0x10FFFF)
return 0x01000000 | keyCode;
// Keysyms for control characters
if (isControlCharacter(codepoint)) return 0xFF00 | codepoint;
// Keysyms for ASCII chars
if (codepoint >= 0x0000 && codepoint <= 0x00FF)
return codepoint;
// Keysyms for Unicode
if (codepoint >= 0x0100 && codepoint <= 0x10FFFF)
return 0x01000000 | codepoint;
return null;
@@ -399,8 +408,7 @@ Guacamole.Keyboard = function(element) {
var codepoint = parseInt(hex, 16);
// If control character, not typable
if (codepoint <= 0x1F) return false;
if (codepoint >= 0x7F && codepoint <= 0x9F) return false;
if (isControlCharacter(codepoint)) return false;
// Otherwise, typable
return true;
@@ -465,10 +473,12 @@ Guacamole.Keyboard = function(element) {
keypress_keysym = getKeySymFromCharCode(keynum);
// If event identified as a typable character (keypress involved)
// If event identified as a typable character
// then release Ctrl and Alt (if pressed)
if (guac_keyboard.modifiers.ctrl) sendKeyReleased(0xFFE3);
if (guac_keyboard.modifiers.alt) sendKeyReleased(0xFFE9);
if (!isControlCharacter(keynum)) {
if (guac_keyboard.modifiers.ctrl) sendKeyReleased(0xFFE3);
if (guac_keyboard.modifiers.alt) sendKeyReleased(0xFFE9);
}
// Defer handling of event until after any other pending
// key events.