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GDK W32: Handle CapsLock as part of the key shift level

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Instead of using some kind of flawed logic about modifying a keypress result
when CapsLock is toggled, just add a CapsLock shift level (and all derived
shift levels, i.e. Shift+CapsLock and CapsLock+AltGr and Shift+CapsLock+AltGr)
and query Windows keyboard layout API about the result of keypresses involving
CapsLock.

Keysym table is going to be (roughly) twice as large now, but CapsLock'ed
keypresses will give correct results for some keyboard layouts (such as
Czech keyboard layout, which without this change produces lowercase letters
for CapsLock->[0,2,3,4...] instead of uppercase ones).

Keymap update time also increases accordingly.

https://bugzilla.gnome.org/show_bug.cgi?id=165385
This commit is contained in:
Руслан Ижбулатов 2017-01-04 04:31:53 +00:00
parent 33442d953d
commit cba75d8239
1 changed files with 122 additions and 94 deletions
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216
gdk/win32/gdkkeys-win32.c
View File

@ -42,8 +42,12 @@ enum _GdkWin32KeyLevelState
{
GDK_WIN32_LEVEL_NONE = 0,
GDK_WIN32_LEVEL_SHIFT,
GDK_WIN32_LEVEL_CAPSLOCK,
GDK_WIN32_LEVEL_SHIFT_CAPSLOCK,
GDK_WIN32_LEVEL_ALTGR,
GDK_WIN32_LEVEL_SHIFT_ALTGR,
GDK_WIN32_LEVEL_CAPSLOCK_ALTGR,
GDK_WIN32_LEVEL_SHIFT_CAPSLOCK_ALTGR,
GDK_WIN32_LEVEL_COUNT
};
@ -124,17 +128,12 @@ struct _GdkWin32KeyGroupOptions
/* character that should be used as the decimal separator */
wchar_t decimal_mark;
/* the bits that indicate level shift when set (usually Shift, sometimes also CapsLock) */
GdkModifierType shift_modifiers;
/* Scancode for the VK_RSHIFT */
guint scancode_rshift;
/* TRUE if Ctrl+Alt emulates AltGr */
gboolean has_altgr;
gboolean capslock_tested;
GArray *dead_keys;
};
@ -155,9 +154,9 @@ struct _GdkWin32Keymap
GArray *layout_handles;
/* VirtualKeyCode -> gdk_keyval table
* length = 256 * length(layout_handles) * 2 * 2
* length = 256 * length(layout_handles) * 2 * 4
* 256 is the number of virtual key codes,
* 2x2 is the number of Shift/AltGr combinations (level),
* 2x4 is the number of Shift/AltGr/CapsLock combinations (level),
* length(layout_handles) is the number of layout handles (group).
*/
guint *keysym_tab;
@ -233,10 +232,9 @@ print_keysym_tab (GdkWin32Keymap *keymap)
for (li = 0; li < group_size; li++)
{
options = &g_array_index (keymap->options, GdkWin32KeyGroupOptions, li);
g_print ("keymap %d (0x%p):%s%s\n",
g_print ("keymap %d (0x%p):%s\n",
li, g_array_index (keymap->layout_handles, HKL, li),
options->has_altgr ? " (uses AltGr)" : "",
(options->shift_modifiers & GDK_LOCK_MASK) ? " (has ShiftLock)" : "");
options->has_altgr ? " (uses AltGr)" : "");
for (vk = 0; vk < KEY_STATE_SIZE; vk++)
{
@ -427,18 +425,42 @@ set_level_vks (guchar *key_state,
{
case GDK_WIN32_LEVEL_NONE:
key_state[VK_SHIFT] = 0;
key_state[VK_CAPITAL] = 0;
key_state[VK_CONTROL] = key_state[VK_MENU] = 0;
break;
case GDK_WIN32_LEVEL_SHIFT:
key_state[VK_SHIFT] = 0x80;
key_state[VK_CAPITAL] = 0;
key_state[VK_CONTROL] = key_state[VK_MENU] = 0;
break;
case GDK_WIN32_LEVEL_CAPSLOCK:
key_state[VK_SHIFT] = 0;
key_state[VK_CAPITAL] = 0x01;
key_state[VK_CONTROL] = key_state[VK_MENU] = 0;
break;
case GDK_WIN32_LEVEL_SHIFT_CAPSLOCK:
key_state[VK_SHIFT] = 0x80;
key_state[VK_CAPITAL] = 0x01;
key_state[VK_CONTROL] = key_state[VK_MENU] = 0;
break;
case GDK_WIN32_LEVEL_ALTGR:
key_state[VK_SHIFT] = 0;
key_state[VK_CAPITAL] = 0;
key_state[VK_CONTROL] = key_state[VK_MENU] = 0x80;
break;
case GDK_WIN32_LEVEL_SHIFT_ALTGR:
key_state[VK_SHIFT] = 0x80;
key_state[VK_CAPITAL] = 0;
key_state[VK_CONTROL] = key_state[VK_MENU] = 0x80;
break;
case GDK_WIN32_LEVEL_CAPSLOCK_ALTGR:
key_state[VK_SHIFT] = 0;
key_state[VK_CAPITAL] = 0x01;
key_state[VK_CONTROL] = key_state[VK_MENU] = 0x80;
break;
case GDK_WIN32_LEVEL_SHIFT_CAPSLOCK_ALTGR:
key_state[VK_SHIFT] = 0x80;
key_state[VK_CAPITAL] = 0x01;
key_state[VK_CONTROL] = key_state[VK_MENU] = 0x80;
break;
case GDK_WIN32_LEVEL_COUNT:
@ -458,6 +480,7 @@ reset_after_dead (guchar key_state[KEY_STATE_SIZE],
temp_key_state[VK_SHIFT] =
temp_key_state[VK_CONTROL] =
temp_key_state[VK_CAPITAL] =
temp_key_state[VK_MENU] = 0;
ToUnicodeEx (VK_SPACE, MapVirtualKey (VK_SPACE, 0),
@ -664,7 +687,7 @@ update_keymap (GdkKeymap *gdk_keymap)
GDK_NOTE (EVENTS, g_print ("\n"));
keysym_tab_size = hkls_len * 256 * 2 * 2;
keysym_tab_size = hkls_len * 256 * 2 * 4;
if (hkls_len != keymap->layout_handles->len)
keymap->keysym_tab = g_renew (guint, keymap->keysym_tab, keysym_tab_size);
@ -678,10 +701,8 @@ update_keymap (GdkKeymap *gdk_keymap)
options = &g_array_index (keymap->options, GdkWin32KeyGroupOptions, i);
options->decimal_mark = 0;
options->shift_modifiers = GDK_SHIFT_MASK;
options->scancode_rshift = 0;
options->has_altgr = FALSE;
options->capslock_tested = FALSE;
options->dead_keys = g_array_new (FALSE, FALSE, sizeof (GdkWin32KeyNode));
g_array_set_clear_func (options->dead_keys, (GDestroyNotify) gdk_win32_key_node_clear);
@ -811,6 +832,8 @@ update_keymap (GdkKeymap *gdk_keymap)
/* Check if keyboard has an AltGr key by checking if
* the mapping with Control+Alt is different.
* Don't test CapsLock here, as it does not seem to affect
* dead keys themselves, only the results of dead key combinations.
*/
if (!options->has_altgr)
if ((keygroup[GDK_WIN32_LEVEL_ALTGR] != GDK_KEY_VoidSymbol &&
@ -818,43 +841,6 @@ update_keymap (GdkKeymap *gdk_keymap)
(keygroup[GDK_WIN32_LEVEL_SHIFT_ALTGR] != GDK_KEY_VoidSymbol &&
keygroup[GDK_WIN32_LEVEL_SHIFT] != keygroup[GDK_WIN32_LEVEL_SHIFT_ALTGR]))
options->has_altgr = TRUE;
if (!options->capslock_tested)
{
/* Can we use this virtual key to determine the CapsLock
* key behaviour: CapsLock or ShiftLock? If it generates
* keysyms for printable characters and has a shifted
* keysym that isn't just the upperacase of the
* unshifted keysym, check the behaviour of VK_CAPITAL.
*/
if (g_unichar_isgraph (gdk_keyval_to_unicode (keygroup[GDK_WIN32_LEVEL_NONE])) &&
keygroup[GDK_WIN32_LEVEL_SHIFT] != keygroup[GDK_WIN32_LEVEL_NONE] &&
g_unichar_isgraph (gdk_keyval_to_unicode (keygroup[GDK_WIN32_LEVEL_SHIFT])) &&
keygroup[GDK_WIN32_LEVEL_SHIFT] != gdk_keyval_to_upper (keygroup[GDK_WIN32_LEVEL_NONE]))
{
guchar chars[2];
options->capslock_tested = TRUE;
key_state[VK_SHIFT] = 0;
key_state[VK_CONTROL] = key_state[VK_MENU] = 0;
key_state[VK_CAPITAL] = 1;
if (ToAsciiEx (vk, scancode, key_state,
(LPWORD) chars, 0, hkls[group]) == 1)
{
if (chars[0] >= GDK_KEY_space &&
chars[0] <= GDK_KEY_asciitilde &&
chars[0] == keygroup[GDK_WIN32_LEVEL_SHIFT])
{
/* CapsLock acts as ShiftLock */
options->shift_modifiers |= GDK_LOCK_MASK;
}
}
key_state[VK_CAPITAL] = 0;
}
}
}
}
@ -930,13 +916,33 @@ update_keymap (GdkKeymap *gdk_keymap)
wchar_t t = gdk_keyval_to_unicode (dead_key->undead_gdk_keycode);
dead_key_undead_u8 = g_utf16_to_utf8 (&t, 1, NULL, NULL, NULL);
wcs_u8 = g_utf16_to_utf8 (wcs, 1, NULL, NULL, NULL);
g_fprintf (stdout, "%d %s%s0x%02x (%s) + %s%s0x%02x = 0x%04x (%s)\n", group,
(dead_key->level == GDK_WIN32_LEVEL_SHIFT || dead_key->level == GDK_WIN32_LEVEL_SHIFT_ALTGR) ? "SHIFT-" : " ",
(dead_key->level == GDK_WIN32_LEVEL_ALTGR || dead_key->level == GDK_WIN32_LEVEL_SHIFT_ALTGR) ? "ALTGR-" : " ",
g_fprintf (stdout, "%d %s%s%s0x%02x (%s) + %s%s%s0x%02x = 0x%04x (%s)\n", group,
(dead_key->level == GDK_WIN32_LEVEL_SHIFT ||
dead_key->level == GDK_WIN32_LEVEL_SHIFT_ALTGR ||
dead_key->level == GDK_WIN32_LEVEL_SHIFT_CAPSLOCK ||
dead_key->level == GDK_WIN32_LEVEL_SHIFT_CAPSLOCK_ALTGR) ? "SHIFT-" : " ",
(dead_key->level == GDK_WIN32_LEVEL_CAPSLOCK ||
dead_key->level == GDK_WIN32_LEVEL_SHIFT_CAPSLOCK ||
dead_key->level == GDK_WIN32_LEVEL_CAPSLOCK_ALTGR ||
dead_key->level == GDK_WIN32_LEVEL_SHIFT_CAPSLOCK_ALTGR) ? "CAPSLOCK-" : " ",
(dead_key->level == GDK_WIN32_LEVEL_ALTGR ||
dead_key->level == GDK_WIN32_LEVEL_SHIFT_ALTGR ||
dead_key->level == GDK_WIN32_LEVEL_CAPSLOCK_ALTGR ||
dead_key->level == GDK_WIN32_LEVEL_SHIFT_CAPSLOCK_ALTGR) ? "ALTGR-" : " ",
dead_key->vk,
dead_key_undead_u8,
(combo.level == GDK_WIN32_LEVEL_SHIFT || combo.level == GDK_WIN32_LEVEL_SHIFT_ALTGR) ? "SHIFT-" : " ",
(combo.level == GDK_WIN32_LEVEL_ALTGR || combo.level == GDK_WIN32_LEVEL_SHIFT_ALTGR) ? "ALTGR-" : " ",
(combo.level == GDK_WIN32_LEVEL_SHIFT ||
combo.level == GDK_WIN32_LEVEL_SHIFT_ALTGR ||
combo.level == GDK_WIN32_LEVEL_SHIFT_CAPSLOCK ||
combo.level == GDK_WIN32_LEVEL_SHIFT_CAPSLOCK_ALTGR) ? "SHIFT-" : " ",
(combo.level == GDK_WIN32_LEVEL_CAPSLOCK ||
combo.level == GDK_WIN32_LEVEL_SHIFT_CAPSLOCK ||
combo.level == GDK_WIN32_LEVEL_CAPSLOCK_ALTGR ||
combo.level == GDK_WIN32_LEVEL_SHIFT_CAPSLOCK_ALTGR) ? "CAPSLOCK-" : " ",
(combo.level == GDK_WIN32_LEVEL_ALTGR ||
combo.level == GDK_WIN32_LEVEL_SHIFT_ALTGR ||
combo.level == GDK_WIN32_LEVEL_CAPSLOCK_ALTGR ||
combo.level == GDK_WIN32_LEVEL_SHIFT_CAPSLOCK_ALTGR) ? "ALTGR-" : " ",
vk,
wcs[0],
wcs_u8);
@ -1498,7 +1504,6 @@ gdk_win32_keymap_translate_keyboard_state (GdkKeymap *gdk_keymap,
guint tmp_keyval;
guint *keygroup;
GdkWin32KeyLevelState shift_level;
GdkWin32KeyGroupOptions *options;
GdkModifierType modifiers = GDK_SHIFT_MASK | GDK_LOCK_MASK | GDK_MOD2_MASK;
g_return_val_if_fail (gdk_keymap == NULL || GDK_IS_KEYMAP (gdk_keymap), FALSE);
@ -1529,34 +1534,30 @@ gdk_win32_keymap_translate_keyboard_state (GdkKeymap *gdk_keymap,
if (group < 0 || group >= keymap->layout_handles->len)
return FALSE;
options = &g_array_index (keymap->options, GdkWin32KeyGroupOptions, group);
keygroup = &keymap->keysym_tab[(hardware_keycode * keymap->layout_handles->len + group) * GDK_WIN32_LEVEL_COUNT];
if ((state & GDK_LOCK_MASK) &&
(state & GDK_SHIFT_MASK) &&
((options->shift_modifiers & GDK_LOCK_MASK) ||
(keygroup[GDK_WIN32_LEVEL_SHIFT] == gdk_keyval_to_upper (keygroup[GDK_WIN32_LEVEL_NONE]))))
/* Shift always disables ShiftLock. Shift disables CapsLock for
* keys with lowercase/uppercase letter pairs.
*/
shift_level = GDK_WIN32_LEVEL_NONE;
else if (state & options->shift_modifiers)
if ((state & (GDK_SHIFT_MASK | GDK_LOCK_MASK)) == (GDK_SHIFT_MASK | GDK_LOCK_MASK))
shift_level = GDK_WIN32_LEVEL_SHIFT_CAPSLOCK;
else if (state & GDK_SHIFT_MASK)
shift_level = GDK_WIN32_LEVEL_SHIFT;
else if (state & GDK_LOCK_MASK)
shift_level = GDK_WIN32_LEVEL_CAPSLOCK;
else
shift_level = GDK_WIN32_LEVEL_NONE;
if (shift_level == GDK_WIN32_LEVEL_NONE)
if (state & GDK_MOD2_MASK)
{
if (state & GDK_MOD2_MASK)
if (shift_level == GDK_WIN32_LEVEL_NONE)
shift_level = GDK_WIN32_LEVEL_ALTGR;
}
else
{
if (state & GDK_MOD2_MASK)
else if (shift_level == GDK_WIN32_LEVEL_SHIFT)
shift_level = GDK_WIN32_LEVEL_SHIFT_ALTGR;
else if (shift_level == GDK_WIN32_LEVEL_CAPSLOCK)
shift_level = GDK_WIN32_LEVEL_CAPSLOCK_ALTGR;
else
shift_level = GDK_WIN32_LEVEL_SHIFT_CAPSLOCK_ALTGR;
}
/* Drop altgr and shift if there are no keysymbols on
/* Drop altgr, capslock and shift if there are no keysymbols on
* the key for those.
*/
if (keygroup[shift_level] == GDK_KEY_VoidSymbol)
@ -1565,11 +1566,25 @@ gdk_win32_keymap_translate_keyboard_state (GdkKeymap *gdk_keymap,
{
case GDK_WIN32_LEVEL_NONE:
case GDK_WIN32_LEVEL_ALTGR:
case GDK_WIN32_LEVEL_SHIFT:
case GDK_WIN32_LEVEL_CAPSLOCK:
if (keygroup[GDK_WIN32_LEVEL_NONE] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_NONE;
break;
case GDK_WIN32_LEVEL_SHIFT:
if (keygroup[GDK_WIN32_LEVEL_NONE] != GDK_KEY_VoidSymbol)
case GDK_WIN32_LEVEL_SHIFT_CAPSLOCK:
if (keygroup[GDK_WIN32_LEVEL_CAPSLOCK] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_CAPSLOCK;
else if (keygroup[GDK_WIN32_LEVEL_SHIFT] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_SHIFT;
else if (keygroup[GDK_WIN32_LEVEL_NONE] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_NONE;
break;
case GDK_WIN32_LEVEL_CAPSLOCK_ALTGR:
if (keygroup[GDK_WIN32_LEVEL_ALTGR] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_ALTGR;
else if (keygroup[GDK_WIN32_LEVEL_CAPSLOCK] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_CAPSLOCK;
else if (keygroup[GDK_WIN32_LEVEL_NONE] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_NONE;
break;
case GDK_WIN32_LEVEL_SHIFT_ALTGR:
@ -1580,43 +1595,56 @@ gdk_win32_keymap_translate_keyboard_state (GdkKeymap *gdk_keymap,
else if (keygroup[GDK_WIN32_LEVEL_NONE] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_NONE;
break;
case GDK_WIN32_LEVEL_SHIFT_CAPSLOCK_ALTGR:
if (keygroup[GDK_WIN32_LEVEL_CAPSLOCK_ALTGR] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_CAPSLOCK_ALTGR;
else if (keygroup[GDK_WIN32_LEVEL_SHIFT_ALTGR] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_SHIFT_ALTGR;
else if (keygroup[GDK_WIN32_LEVEL_ALTGR] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_ALTGR;
else if (keygroup[GDK_WIN32_LEVEL_SHIFT_CAPSLOCK] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_SHIFT_CAPSLOCK;
else if (keygroup[GDK_WIN32_LEVEL_CAPSLOCK] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_CAPSLOCK;
else if (keygroup[GDK_WIN32_LEVEL_SHIFT] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_SHIFT;
else if (keygroup[GDK_WIN32_LEVEL_NONE] != GDK_KEY_VoidSymbol)
shift_level = GDK_WIN32_LEVEL_NONE;
break;
case GDK_WIN32_LEVEL_COUNT:
g_assert_not_reached ();
}
}
/* See whether the group and shift level actually mattered
/* See whether the shift level actually mattered
* to know what to put in consumed_modifiers
*/
if ((keygroup[GDK_WIN32_LEVEL_SHIFT] == GDK_KEY_VoidSymbol ||
keygroup[GDK_WIN32_LEVEL_NONE] == keygroup[GDK_WIN32_LEVEL_SHIFT]) &&
(keygroup[GDK_WIN32_LEVEL_SHIFT_ALTGR] == GDK_KEY_VoidSymbol ||
keygroup[GDK_WIN32_LEVEL_ALTGR] == keygroup[GDK_WIN32_LEVEL_SHIFT_ALTGR]))
modifiers &= ~(GDK_SHIFT_MASK | GDK_LOCK_MASK);
keygroup[GDK_WIN32_LEVEL_ALTGR] == keygroup[GDK_WIN32_LEVEL_SHIFT_ALTGR]) &&
(keygroup[GDK_WIN32_LEVEL_SHIFT_CAPSLOCK] == GDK_KEY_VoidSymbol ||
keygroup[GDK_WIN32_LEVEL_CAPSLOCK] == keygroup[GDK_WIN32_LEVEL_SHIFT_CAPSLOCK]))
modifiers &= ~GDK_SHIFT_MASK;
if ((keygroup[GDK_WIN32_LEVEL_CAPSLOCK] == GDK_KEY_VoidSymbol ||
keygroup[GDK_WIN32_LEVEL_NONE] == keygroup[GDK_WIN32_LEVEL_CAPSLOCK]) &&
(keygroup[GDK_WIN32_LEVEL_CAPSLOCK_ALTGR] == GDK_KEY_VoidSymbol ||
keygroup[GDK_WIN32_LEVEL_ALTGR] == keygroup[GDK_WIN32_LEVEL_CAPSLOCK_ALTGR]) &&
(keygroup[GDK_WIN32_LEVEL_SHIFT_CAPSLOCK] == GDK_KEY_VoidSymbol ||
keygroup[GDK_WIN32_LEVEL_SHIFT] == keygroup[GDK_WIN32_LEVEL_SHIFT_CAPSLOCK]))
modifiers &= ~GDK_LOCK_MASK;
if ((keygroup[GDK_WIN32_LEVEL_ALTGR] == GDK_KEY_VoidSymbol ||
keygroup[GDK_WIN32_LEVEL_NONE] == keygroup[GDK_WIN32_LEVEL_ALTGR]) &&
(keygroup[GDK_WIN32_LEVEL_SHIFT_ALTGR] == GDK_KEY_VoidSymbol ||
keygroup[GDK_WIN32_LEVEL_SHIFT] == keygroup[GDK_WIN32_LEVEL_SHIFT_ALTGR]))
keygroup[GDK_WIN32_LEVEL_SHIFT] == keygroup[GDK_WIN32_LEVEL_SHIFT_ALTGR]) &&
(keygroup[GDK_WIN32_LEVEL_CAPSLOCK_ALTGR] == GDK_KEY_VoidSymbol ||
keygroup[GDK_WIN32_LEVEL_CAPSLOCK] == keygroup[GDK_WIN32_LEVEL_CAPSLOCK_ALTGR]))
modifiers &= ~GDK_MOD2_MASK;
tmp_keyval = keygroup[shift_level];
/* If a true CapsLock is toggled, and Shift is not down,
* and the shifted keysym is the uppercase of the unshifted,
* use it.
*/
if (!(options->shift_modifiers & GDK_LOCK_MASK) &&
!(state & GDK_SHIFT_MASK) &&
(state & GDK_LOCK_MASK) &&
(shift_level < GDK_WIN32_LEVEL_SHIFT_ALTGR))
{
guint upper = gdk_keyval_to_upper (tmp_keyval);
if (upper == keygroup[shift_level + 1])
tmp_keyval = upper;
}
if (keyval)
*keyval = tmp_keyval;