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[FREELDR] Check for any user keypress in menu even when the timeout is zero.

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Before taking any default action if there is no timeout, check whether
the supplied key filter callback function may handle a specific user
keypress. If it does, the menu timeout is cancelled.

This allows e.g. handling F8 press for displaying boot options even when
the timeout is zero.

CORE-14046
This commit is contained in:
Hermès Bélusca-Maïto 2018-11-25 17:01:54 +01:00
parent a94d24fe20
commit f8d3f9de29
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25
boot/freeldr/freeldr/ui/directui.c
View file

@ -556,6 +556,31 @@ UiDisplayMenu(IN PCSTR MenuHeader,
ULONG CurrentClockSecond;
ULONG KeyPress;
/*
* Before taking any default action if there is no timeout,
* check whether the supplied key filter callback function
* may handle a specific user keypress. If it does, the
* timeout is cancelled.
*/
if (!MenuTimeOut && KeyPressFilter && MachConsKbHit())
{
/* Get the key */
KeyPress = MachConsGetCh();
/* Is it extended? Then get the extended key */
if (!KeyPress) KeyPress = MachConsGetCh();
/*
* Call the supplied key filter callback function to see
* if it is going to handle this keypress.
*/
if (KeyPressFilter(KeyPress))
{
/* It processed the key character, cancel the timeout */
MenuTimeOut = -1;
}
}
/* Check if there's no timeout */
if (!MenuTimeOut)
{

32
boot/freeldr/freeldr/ui/tuimenu.c
View file

@ -30,8 +30,40 @@ TuiDisplayMenu(PCSTR MenuHeader,
ULONG CurrentClockSecond;
ULONG KeyPress;
//
// Before taking any default action if there is no timeout,
// check whether the supplied key filter callback function
// may handle a specific user keypress. If it does, the
// timeout is cancelled.
//
if (!MenuTimeOut && KeyPressFilter && MachConsKbHit())
{
//
// Get the key
//
KeyPress = MachConsGetCh();
//
// Is it extended? Then get the extended key
//
if (!KeyPress) KeyPress = MachConsGetCh();
//
// Call the supplied key filter callback function to see
// if it is going to handle this keypress.
//
if (KeyPressFilter(KeyPress))
{
//
// It processed the key character, cancel the timeout
//
MenuTimeOut = -1;
}
}
//
// Check if there's no timeout
//
if (!MenuTimeOut)
{
//