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Use timeout only as failsafe. Send key events immediately when we know we will handle via keypress or keydown.

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This commit is contained in:
Michael Jumper
2012-06-20 22:46:53 -07:00
parent 03486264d1
commit 8f8b41fe8b
1 changed files with 34 additions and 28 deletions
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62
guacamole-common-js/src/main/resources/keyboard.js
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@@ -432,6 +432,8 @@ Guacamole.Keyboard = function(element) {
return;
}
var expect_keypress = true;
// Ctrl/Alt/Shift
if (keynum == 16) guac_keyboard.modifiers.shift = true;
else if (keynum == 17) guac_keyboard.modifiers.ctrl = true;
@@ -442,7 +444,7 @@ Guacamole.Keyboard = function(element) {
// If key is known from keycode, prevent default
if (keydown_keysym)
e.preventDefault();
expect_keypress = false;
// Also try to get get keysym from keyIdentifier
if (e.keyIdentifier) {
@@ -458,17 +460,25 @@ Guacamole.Keyboard = function(element) {
if (!isTypable(e.keyIdentifier)
|| ( guac_keyboard.modifiers.ctrl && !guac_keyboard.modifiers.alt)
|| (!guac_keyboard.modifiers.ctrl && guac_keyboard.modifiers.alt))
e.preventDefault();
expect_keypress = false;
}
// Set keycode which will be associated with any future keypress
keydown_code = keynum;
// Defer handling of event until after any other pending
// key events.
if (!deferred_keypress)
deferred_keypress = window.setTimeout(handleKeyEvents, 0);
// If we expect to handle via keypress, set failsafe timeout and
// wait for keypress.
if (expect_keypress) {
if (!deferred_keypress)
deferred_keypress = window.setTimeout(handleKeyEvents, 0);
}
// Otherwise, handle now
else {
e.preventDefault();
handleKeyEvents();
}
};
@@ -493,10 +503,12 @@ Guacamole.Keyboard = function(element) {
sendKeyReleased(0xFFE9);
}
// Defer handling of event until after any other pending
// key events.
if (!deferred_keypress)
deferred_keypress = window.setTimeout(handleKeyEvents, 0);
// Clear timeout, if any
if (deferred_keypress)
window.clearTimeout(deferred_keypress);
// Handle event with all aggregated data
handleKeyEvents();
};
@@ -512,27 +524,21 @@ Guacamole.Keyboard = function(element) {
if (window.event) keynum = window.event.keyCode;
else if (e.which) keynum = e.which;
// Defer handling of keyup (otherwise, keyup may happen before
// deferred handling of keydown/keypress).
window.setTimeout(function() {
// Ctrl/Alt/Shift
if (keynum == 16) guac_keyboard.modifiers.shift = false;
else if (keynum == 17) guac_keyboard.modifiers.ctrl = false;
else if (keynum == 18) guac_keyboard.modifiers.alt = false;
else
stopRepeat();
// Ctrl/Alt/Shift
if (keynum == 16) guac_keyboard.modifiers.shift = false;
else if (keynum == 17) guac_keyboard.modifiers.ctrl = false;
else if (keynum == 18) guac_keyboard.modifiers.alt = false;
else
stopRepeat();
// Get corresponding character
var lastKeyDownChar = keydownChar[keynum];
// Get corresponding character
var lastKeyDownChar = keydownChar[keynum];
// Clear character record
keydownChar[keynum] = null;
// Clear character record
keydownChar[keynum] = null;
// Send release event
sendKeyReleased(lastKeyDownChar);
}, 0);
// Send release event
sendKeyReleased(lastKeyDownChar);
};