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Switch to translating keystrokes using ToUnicodeEx rather than

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ToAsciiEx, where possible.

This enables support for keys which generate Unicode characters that
aren't in the system code page, which seems to me like a perverse way
for Windows to have set up the system code page but apparently does
happen, e.g. (I'm told) U+0219 and U+021B on Romanian keyboards.

Patch mostly due to Andrei Damian-Fekete.

[originally from svn r9942]
This commit is contained in:
Simon Tatham 2013-07-20 11:31:24 +00:00
parent 8902fef445
commit c46fc37ebc
1 changed files with 37 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

68
windows/window.c
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@ -3905,8 +3905,7 @@ static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
HKL kbd_layout = GetKeyboardLayout(0);
/* keys is for ToAsciiEx. There's some ick here, see below. */
static WORD keys[3];
static wchar_t keys_unicode[3];
static int compose_char = 0;
static WPARAM compose_keycode = 0;
@ -3958,12 +3957,12 @@ static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
else if (ch)
debug((", $%02x", ch));
if (keys[0])
debug((", KB0=%02x", keys[0]));
if (keys[1])
debug((", KB1=%02x", keys[1]));
if (keys[2])
debug((", KB2=%02x", keys[2]));
if (keys_unicode[0])
debug((", KB0=%04x", keys_unicode[0]));
if (keys_unicode[1])
debug((", KB1=%04x", keys_unicode[1]));
if (keys_unicode[2])
debug((", KB2=%04x", keys_unicode[2]));
if ((keystate[VK_SHIFT] & 0x80) != 0)
debug((", S"));
@ -4579,6 +4578,9 @@ static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
* be is? There's indication on MS' website of an Inquire/InquireEx
* functioning returning a KBINFO structure which tells us. */
if (osVersion.dwPlatformId == VER_PLATFORM_WIN32_NT) {
r = ToUnicodeEx(wParam, scan, keystate, keys_unicode,
lenof(keys_unicode), 0, kbd_layout);
} else {
/* XXX 'keys' parameter is declared in MSDN documentation as
* 'LPWORD lpChar'.
* The experience of a French user indicates that on
@ -4589,12 +4591,17 @@ static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
* Win9x/NT split, but I suspect it's worse than that.
* See wishlist item `win-dead-keys' for more horrible detail
* and speculations. */
BYTE keybs[3];
int i;
r = ToAsciiEx(wParam, scan, keystate, (LPWORD)keybs, 0, kbd_layout);
for (i=0; i<3; i++) keys[i] = keybs[i];
} else {
static WORD keys[3];
static BYTE keysb[3];
r = ToAsciiEx(wParam, scan, keystate, keys, 0, kbd_layout);
if (r > 0) {
for (i = 0; i < r; i++) {
keysb[i] = (BYTE)keys[i];
}
MultiByteToWideChar(CP_ACP, 0, (LPCSTR)keysb, r,
keys_unicode, lenof(keys_unicode));
}
}
#ifdef SHOW_TOASCII_RESULT
if (r == 1 && !key_down) {
@ -4604,13 +4611,13 @@ static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
else
debug((", LCH(%d)", alt_sum));
} else {
debug((", ACH(%d)", keys[0]));
debug((", ACH(%d)", keys_unicode[0]));
}
} else if (r > 0) {
int r1;
debug((", ASC("));
for (r1 = 0; r1 < r; r1++) {
debug(("%s%d", r1 ? "," : "", keys[r1]));
debug(("%s%d", r1 ? "," : "", keys_unicode[r1]));
}
debug((")"));
}
@ -4627,18 +4634,18 @@ static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
p = output;
for (i = 0; i < r; i++) {
unsigned char ch = (unsigned char) keys[i];
wchar_t wch = keys_unicode[i];
if (compose_state == 2 && (ch & 0x80) == 0 && ch > ' ') {
compose_char = ch;
if (compose_state == 2 && wch >= ' ' && wch < 0x80) {
compose_char = wch;
compose_state++;
continue;
}
if (compose_state == 3 && (ch & 0x80) == 0 && ch > ' ') {
if (compose_state == 3 && wch >= ' ' && wch < 0x80) {
int nc;
compose_state = 0;
if ((nc = check_compose(compose_char, ch)) == -1) {
if ((nc = check_compose(compose_char, wch)) == -1) {
MessageBeep(MB_ICONHAND);
return 0;
}
@ -4659,7 +4666,7 @@ static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
if (ldisc)
luni_send(ldisc, &keybuf, 1, 1);
} else {
ch = (char) alt_sum;
char ch = (char) alt_sum;
/*
* We need not bother about stdin
* backlogs here, because in GUI PuTTY
@ -4677,40 +4684,39 @@ static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
} else {
term_seen_key_event(term);
if (ldisc)
lpage_send(ldisc, kbd_codepage, &ch, 1, 1);
luni_send(ldisc, &wch, 1, 1);
}
} else {
if(capsOn && ch < 0x80) {
if(capsOn && wch < 0x80) {
WCHAR cbuf[2];
cbuf[0] = 27;
cbuf[1] = xlat_uskbd2cyrllic(ch);
cbuf[1] = xlat_uskbd2cyrllic(wch);
term_seen_key_event(term);
if (ldisc)
luni_send(ldisc, cbuf+!left_alt, 1+!!left_alt, 1);
} else {
char cbuf[2];
WCHAR cbuf[2];
cbuf[0] = '\033';
cbuf[1] = ch;
cbuf[1] = wch;
term_seen_key_event(term);
if (ldisc)
lpage_send(ldisc, kbd_codepage,
cbuf+!left_alt, 1+!!left_alt, 1);
luni_send(ldisc, cbuf +!left_alt, 1+!!left_alt, 1);
}
}
show_mouseptr(0);
}
/* This is so the ALT-Numpad and dead keys work correctly. */
keys[0] = 0;
keys_unicode[0] = 0;
return p - output;
}
/* If we're definitly not building up an ALT-54321 then clear it */
if (!left_alt)
keys[0] = 0;
keys_unicode[0] = 0;
/* If we will be using alt_sum fix the 256s */
else if (keys[0] && (in_utf(term) || ucsdata.dbcs_screenfont))
keys[0] = 10;
else if (keys_unicode[0] && (in_utf(term) || ucsdata.dbcs_screenfont))
keys_unicode[0] = 10;
}
/*