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ShellPkg: Add support for input with separately reported modifiers

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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2510

Some firmwares:
- Report Shift modifier even when they report upper-case unicode letter.
- Report Ctrl modifier with "shifted" UniChar (i.e. X - 'A' + 1).

This change provides support for these firmwares preserving the compatibility
with the previous input handling.

Signed-off-by: Michael Belyaev <usrsse2@icloud.com>
Reviewed-by: Vitaly Cheptsov <vit9696@protonmail.com>
This commit is contained in:
Vitaly Cheptsov 2020-02-10 13:10:40 +03:00 committed by Vitaly Cheptsov
parent bb1bba3d77
commit 2a88c5f741
4 changed files with 58 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
ShellPkg/Library/UefiShellDebug1CommandsLib/Edit/MainTextEditor.c
View File

@ -1381,8 +1381,8 @@ MainCommandDisplayHelp (
continue;
}
if (((KeyData.KeyState.KeyShiftState & EFI_SHIFT_STATE_VALID) == 0) ||
(KeyData.KeyState.KeyShiftState == EFI_SHIFT_STATE_VALID)) {
if (((KeyData.KeyState.KeyShiftState & EFI_SHIFT_STATE_VALID) == 0)
|| (KeyData.KeyState.KeyShiftState == EFI_SHIFT_STATE_VALID)) {
//
// For consoles that don't support/report shift state,
// CTRL+W is translated to L'W' - L'A' + 1.
@ -1390,14 +1390,17 @@ MainCommandDisplayHelp (
if (KeyData.Key.UnicodeChar == L'W' - L'A' + 1) {
break;
}
} else if (((KeyData.KeyState.KeyShiftState & EFI_SHIFT_STATE_VALID) != 0) &&
((KeyData.KeyState.KeyShiftState & (EFI_LEFT_CONTROL_PRESSED | EFI_RIGHT_CONTROL_PRESSED)) != 0) &&
((KeyData.KeyState.KeyShiftState & ~(EFI_SHIFT_STATE_VALID | EFI_LEFT_CONTROL_PRESSED | EFI_RIGHT_CONTROL_PRESSED)) == 0)) {
} else if (((KeyData.KeyState.KeyShiftState & EFI_SHIFT_STATE_VALID) != 0)
&& ((KeyData.KeyState.KeyShiftState & (EFI_LEFT_CONTROL_PRESSED | EFI_RIGHT_CONTROL_PRESSED)) != 0)
&& ((KeyData.KeyState.KeyShiftState & ~(EFI_SHIFT_STATE_VALID | EFI_LEFT_CONTROL_PRESSED | EFI_RIGHT_CONTROL_PRESSED)) == 0)) {
//
// For consoles that supports/reports shift state,
// make sure that only CONTROL shift key is pressed.
// For some consoles that report shift state,
// CTRL+W is still translated to L'W' - L'A' + 1.
//
if ((KeyData.Key.UnicodeChar == 'w') || (KeyData.Key.UnicodeChar == 'W')) {
if ((KeyData.Key.UnicodeChar == L'w') || (KeyData.Key.UnicodeChar == L'W')
|| (KeyData.Key.UnicodeChar == L'w' - L'a' + 1) || (KeyData.Key.UnicodeChar == L'W' - L'A' + 1)) {
break;
}
}
@ -1834,7 +1837,8 @@ MainEditorKeyInput (
EFI_KEY_DATA KeyData;
EFI_STATUS Status;
EFI_SIMPLE_POINTER_STATE MouseState;
BOOLEAN NoShiftState;
BOOLEAN NoModifierState;
BOOLEAN ShiftOnlyState;
do {
@ -1886,17 +1890,28 @@ MainEditorKeyInput (
//
StatusBarSetRefresh();
//
// NoShiftState: TRUE when no shift key is pressed.
// NoModifierState: TRUE when no modifier key is pressed.
//
NoShiftState = ((KeyData.KeyState.KeyShiftState & EFI_SHIFT_STATE_VALID) == 0) || (KeyData.KeyState.KeyShiftState == EFI_SHIFT_STATE_VALID);
NoModifierState = ((KeyData.KeyState.KeyShiftState & EFI_SHIFT_STATE_VALID) == 0)
|| (KeyData.KeyState.KeyShiftState == EFI_SHIFT_STATE_VALID);
//
// ShiftOnlyState: TRUE when no modifier key except Shift is pressed.
//
ShiftOnlyState = ((KeyData.KeyState.KeyShiftState & EFI_SHIFT_STATE_VALID) == 0)
|| ((KeyData.KeyState.KeyShiftState
& ~(EFI_SHIFT_STATE_VALID | EFI_LEFT_SHIFT_PRESSED | EFI_RIGHT_SHIFT_PRESSED)) == 0);
//
// dispatch to different components' key handling function
//
if (EFI_NOT_FOUND != MenuBarDispatchControlHotKey(&KeyData)) {
Status = EFI_SUCCESS;
} else if (NoShiftState && ((KeyData.Key.ScanCode == SCAN_NULL) || ((KeyData.Key.ScanCode >= SCAN_UP) && (KeyData.Key.ScanCode <= SCAN_PAGE_DOWN)))) {
} else if ((ShiftOnlyState && (KeyData.Key.ScanCode == SCAN_NULL))
|| (NoModifierState && (KeyData.Key.ScanCode >= SCAN_UP) && (KeyData.Key.ScanCode <= SCAN_PAGE_DOWN))) {
//
// alphanumeric keys with or without shift, or arrow keys without shift
//
Status = FileBufferHandleInput (&KeyData.Key);
} else if (NoShiftState && (KeyData.Key.ScanCode >= SCAN_F1) && (KeyData.Key.ScanCode <= SCAN_F12)) {
} else if (NoModifierState && (KeyData.Key.ScanCode >= SCAN_F1) && (KeyData.Key.ScanCode <= SCAN_F12)) {
Status = MenuBarDispatchFunctionKey (&KeyData.Key);
} else {
StatusBarSetStatusString (L"Unknown Command");

28
ShellPkg/Library/UefiShellDebug1CommandsLib/EditInputBar.c
View File

@ -130,6 +130,8 @@ InputBarRefresh (
UINTN EventIndex;
UINTN CursorRow;
UINTN CursorCol;
BOOLEAN ShiftPressed;
BOOLEAN ModifiersPressed;
//
// variable initialization
@ -180,17 +182,23 @@ InputBarRefresh (
if (EFI_ERROR (Status)) {
continue;
}
if (((KeyData.KeyState.KeyShiftState & EFI_SHIFT_STATE_VALID) != 0) &&
(KeyData.KeyState.KeyShiftState != EFI_SHIFT_STATE_VALID)) {
//
// Shift key pressed.
//
ModifiersPressed = ((KeyData.KeyState.KeyShiftState & EFI_SHIFT_STATE_VALID) != 0)
&& (KeyData.KeyState.KeyShiftState != EFI_SHIFT_STATE_VALID);
//
// TRUE if Shift is pressed and no other modifiers are pressed
//
ShiftPressed = ModifiersPressed &&
((KeyData.KeyState.KeyShiftState &
~(EFI_SHIFT_STATE_VALID | EFI_LEFT_SHIFT_PRESSED | EFI_RIGHT_SHIFT_PRESSED)) == 0);
if (ModifiersPressed && !ShiftPressed) {
continue;
}
//
// pressed ESC
//
if (KeyData.Key.ScanCode == SCAN_ESC) {
if (!ModifiersPressed && KeyData.Key.ScanCode == SCAN_ESC) {
Size = 0;
Status = EFI_NOT_READY;
break;
@ -198,9 +206,10 @@ InputBarRefresh (
//
// return pressed
//
if (KeyData.Key.UnicodeChar == CHAR_LINEFEED || KeyData.Key.UnicodeChar == CHAR_CARRIAGE_RETURN) {
if (!ModifiersPressed
&& (KeyData.Key.UnicodeChar == CHAR_LINEFEED || KeyData.Key.UnicodeChar == CHAR_CARRIAGE_RETURN)) {
break;
} else if (KeyData.Key.UnicodeChar == CHAR_BACKSPACE) {
} else if (!ModifiersPressed && KeyData.Key.UnicodeChar == CHAR_BACKSPACE) {
//
// backspace
//
@ -213,7 +222,8 @@ InputBarRefresh (
}
}
} else if (KeyData.Key.UnicodeChar <= 127 && KeyData.Key.UnicodeChar >= 32) {
} else if ((!ModifiersPressed || ShiftPressed)
&& KeyData.Key.UnicodeChar <= 127 && KeyData.Key.UnicodeChar >= 32) {
//
// VALID ASCII char pressed
//

6
ShellPkg/Library/UefiShellDebug1CommandsLib/EditMenuBar.c
View File

@ -190,11 +190,17 @@ MenuBarDispatchControlHotKey (
//
// For consoles that supports/reports shift state,
// make sure only CONTROL is pressed.
// For some consoles that report shift state,
// Ctrl+A is still translated to 1 (UnicodeChar).
//
if ((KeyData->Key.UnicodeChar >= L'A') && (KeyData->Key.UnicodeChar <= L'Z')) {
ControlIndex = KeyData->Key.UnicodeChar - L'A' + 1;
} else if ((KeyData->Key.UnicodeChar >= L'a') && (KeyData->Key.UnicodeChar <= L'z')) {
ControlIndex = KeyData->Key.UnicodeChar - L'a' + 1;
} else if ((KeyData->Key.UnicodeChar >= L'A' - L'A' + 1) && (KeyData->Key.UnicodeChar <= L'Z' - L'A' + 1)) {
ControlIndex = KeyData->Key.UnicodeChar;
} else if ((KeyData->Key.UnicodeChar >= L'a' - L'a' + 1) && (KeyData->Key.UnicodeChar <= L'z' - L'z' + 1)) {
ControlIndex = KeyData->Key.UnicodeChar;
}
}
if ((SCAN_CONTROL_Z < ControlIndex)

11
ShellPkg/Library/UefiShellDebug1CommandsLib/HexEdit/MainHexEditor.c
View File

@ -137,14 +137,17 @@ HMainCommandDisplayHelp (
if (KeyData.Key.UnicodeChar == L'W' - L'A' + 1) {
break;
}
} else if (((KeyData.KeyState.KeyShiftState & EFI_SHIFT_STATE_VALID) != 0) &&
((KeyData.KeyState.KeyShiftState & (EFI_LEFT_CONTROL_PRESSED | EFI_RIGHT_CONTROL_PRESSED)) != 0) &&
((KeyData.KeyState.KeyShiftState & ~(EFI_SHIFT_STATE_VALID | EFI_LEFT_CONTROL_PRESSED | EFI_RIGHT_CONTROL_PRESSED)) == 0)) {
} else if (((KeyData.KeyState.KeyShiftState & EFI_SHIFT_STATE_VALID) != 0)
&& ((KeyData.KeyState.KeyShiftState & (EFI_LEFT_CONTROL_PRESSED | EFI_RIGHT_CONTROL_PRESSED)) != 0)
&& ((KeyData.KeyState.KeyShiftState & ~(EFI_SHIFT_STATE_VALID | EFI_LEFT_CONTROL_PRESSED | EFI_RIGHT_CONTROL_PRESSED)) == 0)) {
//
// For consoles that supports/reports shift state,
// make sure that only CONTROL shift key is pressed.
// For some consoles that report shift state,
// CTRL+W is still translated to L'W' - L'A' + 1.
//
if ((KeyData.Key.UnicodeChar == 'w') || (KeyData.Key.UnicodeChar == 'W')) {
if ((KeyData.Key.UnicodeChar == 'w') || (KeyData.Key.UnicodeChar == 'W')
|| (KeyData.Key.UnicodeChar == L'w' - L'a' + 1) || (KeyData.Key.UnicodeChar == L'W' - L'A' + 1)) {
break;
}
}