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(resend)[spice-html5] prevent out of sync modifier keys

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Signed-off-by: Aric Stewart <aric@codeweavers.com>
This commit is contained in:
Aric Stewart 2012-08-16 14:09:04 -05:00 committed by Alon Levy
parent 2caf06d1ed
commit a6aa594ef4
1 changed files with 86 additions and 0 deletions
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86
inputs.js
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@ -18,6 +18,15 @@
along with spice-html5. If not, see <http://www.gnu.org/licenses/>.
*/
/*----------------------------------------------------------------------------
** Modifier Keystates
** These need to be tracked because focus in and out can get the keyboard
** out of sync.
**------------------------------------------------------------------------*/
var Shift_state = -1;
var Ctrl_state = -1;
var Alt_state = -1;
var Meta_state = -1;
/*----------------------------------------------------------------------------
** SpiceInputsConn
@ -146,6 +155,7 @@ function handle_keydown(e)
{
var key = new SpiceMsgcKeyDown(e)
var msg = new SpiceMiniData();
check_and_update_modifiers(e, key.code, this.sc);
msg.build_msg(SPICE_MSGC_INPUTS_KEY_DOWN, key);
if (this.sc && this.sc.inputs)
this.sc.inputs.send_msg(msg);
@ -157,9 +167,85 @@ function handle_keyup(e)
{
var key = new SpiceMsgcKeyUp(e)
var msg = new SpiceMiniData();
check_and_update_modifiers(e, key.code, this.sc);
msg.build_msg(SPICE_MSGC_INPUTS_KEY_UP, key);
if (this.sc && this.sc.inputs)
this.sc.inputs.send_msg(msg);
e.preventDefault();
}
function update_modifier(state, code, sc)
{
var msg = new SpiceMiniData();
if (!state)
{
var key = new SpiceMsgcKeyUp()
key.code =(0x80|code);
msg.build_msg(SPICE_MSGC_INPUTS_KEY_UP, key);
}
else
{
var key = new SpiceMsgcKeyDown()
key.code = code;
msg.build_msg(SPICE_MSGC_INPUTS_KEY_DOWN, key);
}
sc.inputs.send_msg(msg);
}
function check_and_update_modifiers(e, code, sc)
{
if (Shift_state === -1)
{
Shift_state = e.shiftKey;
Ctrl_state = e.ctrlKey;
Alt_state = e.altKey;
Meta_state = e.metaKey;
}
if (code === KEY_ShiftL)
Shift_state = true;
else if (code === KEY_Alt)
Alt_state = true;
else if (code === KEY_LCtrl)
Ctrl_state = true;
else if (code === 0xE0B5)
Meta_state = true;
else if (code === (0x80|KEY_ShiftL))
Shift_state = false;
else if (code === (0x80|KEY_Alt))
Alt_state = false;
else if (code === (0x80|KEY_LCtrl))
Ctrl_state = false;
else if (code === (0x80|0xE0B5))
Meta_state = false;
if (sc && sc.inputs)
{
if (Shift_state != e.shiftKey)
{
console.log("Shift state out of sync");
update_modifier(e.shiftKey, KEY_ShiftL, sc);
Shift_state = e.shiftKey;
}
if (Alt_state != e.altKey)
{
console.log("Alt state out of sync");
update_modifier(e.altKey, KEY_Alt, sc);
Alt_state = e.altKey;
}
if (Ctrl_state != e.ctrlKey)
{
console.log("Ctrl state out of sync");
update_modifier(e.ctrlKey, KEY_LCtrl, sc);
Ctrl_state = e.ctrlKey;
}
if (Meta_state != e.metaKey)
{
console.log("Meta state out of sync");
update_modifier(e.metaKey, 0xE0B5, sc);
Meta_state = e.metaKey;
}
}
}