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gtk/gdk/quartz/gdkkeys-quartz.c
Matthias Clasen 13d69e552d Fix a compatibility problem 
It turns out that my attempt at handling Super, Hyper and Meta better
is causing problems, mostly because Alt and Meta are commonly colocated
in the modmap, and apps do a check for the Alt modifier regularly.

See e.g bug 607697.
2010-02-12 18:55:42 -05:00

729 lines
20 KiB
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/* gdkkeys-quartz.c
*
* Copyright (C) 2000 Red Hat, Inc.
* Copyright (C) 2005 Imendio AB
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/* Some parts of this code come from quartzKeyboard.c,
* from the Apple X11 Server.
*
* Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT
* HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name(s) of the above
* copyright holders shall not be used in advertising or otherwise to
* promote the sale, use or other dealings in this Software without
* prior written authorization.
*/
#include "config.h"
#include <Carbon/Carbon.h>
#include <AppKit/NSEvent.h>
#include "gdk.h"
#include "gdkkeysyms.h"
#define NUM_KEYCODES 128
#define KEYVALS_PER_KEYCODE 4
static GdkKeymap *default_keymap = NULL;
/* Note: we could check only if building against the 10.5 SDK instead, but
* that would make non-xml layouts not work in 32-bit which would be a quite
* bad regression. This way, old unsupported layouts will just not work in
* 64-bit.
*/
#ifdef __LP64__
static TISInputSourceRef current_layout = NULL;
#else
static KeyboardLayoutRef current_layout = NULL;
#endif
/* This is a table of all keyvals. Each keycode gets KEYVALS_PER_KEYCODE entries.
* TThere is 1 keyval per modifier (Nothing, Shift, Alt, Shift+Alt);
*/
static guint *keyval_array = NULL;
static inline UniChar
macroman2ucs (unsigned char c)
{
/* Precalculated table mapping MacRoman-128 to Unicode. Generated
by creating single element CFStringRefs then extracting the
first character. */
static const unsigned short table[128] = {
0xc4, 0xc5, 0xc7, 0xc9, 0xd1, 0xd6, 0xdc, 0xe1,
0xe0, 0xe2, 0xe4, 0xe3, 0xe5, 0xe7, 0xe9, 0xe8,
0xea, 0xeb, 0xed, 0xec, 0xee, 0xef, 0xf1, 0xf3,
0xf2, 0xf4, 0xf6, 0xf5, 0xfa, 0xf9, 0xfb, 0xfc,
0x2020, 0xb0, 0xa2, 0xa3, 0xa7, 0x2022, 0xb6, 0xdf,
0xae, 0xa9, 0x2122, 0xb4, 0xa8, 0x2260, 0xc6, 0xd8,
0x221e, 0xb1, 0x2264, 0x2265, 0xa5, 0xb5, 0x2202, 0x2211,
0x220f, 0x3c0, 0x222b, 0xaa, 0xba, 0x3a9, 0xe6, 0xf8,
0xbf, 0xa1, 0xac, 0x221a, 0x192, 0x2248, 0x2206, 0xab,
0xbb, 0x2026, 0xa0, 0xc0, 0xc3, 0xd5, 0x152, 0x153,
0x2013, 0x2014, 0x201c, 0x201d, 0x2018, 0x2019, 0xf7, 0x25ca,
0xff, 0x178, 0x2044, 0x20ac, 0x2039, 0x203a, 0xfb01, 0xfb02,
0x2021, 0xb7, 0x201a, 0x201e, 0x2030, 0xc2, 0xca, 0xc1,
0xcb, 0xc8, 0xcd, 0xce, 0xcf, 0xcc, 0xd3, 0xd4,
0xf8ff, 0xd2, 0xda, 0xdb, 0xd9, 0x131, 0x2c6, 0x2dc,
0xaf, 0x2d8, 0x2d9, 0x2da, 0xb8, 0x2dd, 0x2db, 0x2c7
};
if (c < 128)
return c;
else
return table[c - 128];
}
const static struct {
guint keycode;
guint keyval;
unsigned int modmask; /* So we can tell when a mod key is pressed/released */
} known_keys[] = {
{ 54, GDK_Meta_R, NSCommandKeyMask },
{ 55, GDK_Meta_L, NSCommandKeyMask },
{ 56, GDK_Shift_L, NSShiftKeyMask },
{ 57, GDK_Caps_Lock, NSAlphaShiftKeyMask },
{ 58, GDK_Alt_L, NSAlternateKeyMask },
{ 59, GDK_Control_L, NSControlKeyMask },
{ 60, GDK_Shift_R, NSShiftKeyMask },
{ 61, GDK_Alt_R, NSAlternateKeyMask },
{ 62, GDK_Control_R, NSControlKeyMask },
{ 122, GDK_F1, 0 },
{ 120, GDK_F2, 0 },
{ 99, GDK_F3, 0 },
{ 118, GDK_F4, 0 },
{ 96, GDK_F5, 0 },
{ 97, GDK_F6, 0 },
{ 98, GDK_F7, 0 },
{ 100, GDK_F8, 0 },
{ 101, GDK_F9, 0 },
{ 109, GDK_F10, 0 },
{ 103, GDK_F11, 0 },
{ 111, GDK_F12, 0 },
{ 105, GDK_F13, 0 },
{ 107, GDK_F14, 0 },
{ 113, GDK_F15, 0 },
{ 106, GDK_F16, 0 }
};
const static struct {
guint keycode;
guint normal_keyval, keypad_keyval;
} known_numeric_keys[] = {
{ 65, GDK_period, GDK_KP_Decimal },
{ 67, GDK_asterisk, GDK_KP_Multiply },
{ 69, GDK_plus, GDK_KP_Add },
{ 75, GDK_slash, GDK_KP_Divide },
{ 76, 0x01000003, GDK_KP_Enter },
{ 78, GDK_minus, GDK_KP_Subtract },
{ 81, GDK_equal, GDK_KP_Equal },
{ 82, GDK_0, GDK_KP_0 },
{ 83, GDK_1, GDK_KP_1 },
{ 84, GDK_2, GDK_KP_2 },
{ 85, GDK_3, GDK_KP_3 },
{ 86, GDK_4, GDK_KP_4 },
{ 87, GDK_5, GDK_KP_5 },
{ 88, GDK_6, GDK_KP_6 },
{ 89, GDK_7, GDK_KP_7 },
{ 91, GDK_8, GDK_KP_8 },
{ 92, GDK_9, GDK_KP_9 }
};
/* These values aren't covered by gdk_unicode_to_keyval */
const static struct {
gunichar ucs_value;
guint keyval;
} special_ucs_table [] = {
{ 0x0001, GDK_Home },
{ 0x0003, GDK_Return },
{ 0x0004, GDK_End },
{ 0x0008, GDK_BackSpace },
{ 0x0009, GDK_Tab },
{ 0x000b, GDK_Page_Up },
{ 0x000c, GDK_Page_Down },
{ 0x000d, GDK_Return },
{ 0x001b, GDK_Escape },
{ 0x001c, GDK_Left },
{ 0x001d, GDK_Right },
{ 0x001e, GDK_Up },
{ 0x001f, GDK_Down },
{ 0x007f, GDK_Delete }
};
static void
maybe_update_keymap (void)
{
const void *chr_data = NULL;
#ifdef __LP64__
TISInputSourceRef new_layout = TISCopyCurrentKeyboardLayoutInputSource ();
CFDataRef layout_data_ref;
#else
KeyboardLayoutRef new_layout;
KeyboardLayoutKind layout_kind;
KLGetCurrentKeyboardLayout (&new_layout);
#endif
if (new_layout != current_layout)
{
guint *p;
int i;
g_free (keyval_array);
keyval_array = g_new0 (guint, NUM_KEYCODES * KEYVALS_PER_KEYCODE);
#ifdef __LP64__
layout_data_ref = (CFDataRef) TISGetInputSourceProperty
(new_layout, kTISPropertyUnicodeKeyLayoutData);
if (layout_data_ref)
chr_data = CFDataGetBytePtr (layout_data_ref);
if (chr_data == NULL)
{
g_error ("cannot get keyboard layout data");
return;
}
#else
/* Get the layout kind */
KLGetKeyboardLayoutProperty (new_layout, kKLKind, (const void **)&layout_kind);
/* 8-bit-only keyabord layout */
if (layout_kind == kKLKCHRKind)
{
/* Get chr data */
KLGetKeyboardLayoutProperty (new_layout, kKLKCHRData, (const void **)&chr_data);
for (i = 0; i < NUM_KEYCODES; i++)
{
int j;
UInt32 modifiers[] = {0, shiftKey, optionKey, shiftKey | optionKey};
p = keyval_array + i * KEYVALS_PER_KEYCODE;
for (j = 0; j < KEYVALS_PER_KEYCODE; j++)
{
UInt32 c, state = 0;
UInt16 key_code;
UniChar uc;
key_code = modifiers[j] | i;
c = KeyTranslate (chr_data, key_code, &state);
if (state != 0)
{
UInt32 state2 = 0;
c = KeyTranslate (chr_data, key_code | 128, &state2);
}
if (c != 0 && c != 0x10)
{
int k;
gboolean found = FALSE;
/* FIXME: some keyboard layouts (e.g. Russian) use
* a different 8-bit character set. We should
* check for this. Not a serious problem, because
* most (all?) of these layouts also have a
* uchr version.
*/
uc = macroman2ucs (c);
for (k = 0; k < G_N_ELEMENTS (special_ucs_table); k++)
{
if (special_ucs_table[k].ucs_value == uc)
{
p[j] = special_ucs_table[k].keyval;
found = TRUE;
break;
}
}
/* Special-case shift-tab since GTK+ expects
* GDK_ISO_Left_Tab for that.
*/
if (found && p[j] == GDK_Tab && modifiers[j] == shiftKey)
p[j] = GDK_ISO_Left_Tab;
if (!found)
{
guint tmp;
tmp = gdk_unicode_to_keyval (uc);
if (tmp != (uc | 0x01000000))
p[j] = tmp;
else
p[j] = 0;
}
}
}
if (p[3] == p[2])
p[3] = 0;
if (p[2] == p[1])
p[2] = 0;
if (p[1] == p[0])
p[1] = 0;
if (p[0] == p[2] &&
p[1] == p[3])
p[2] = p[3] = 0;
}
}
/* unicode keyboard layout */
else if (layout_kind == kKLKCHRuchrKind || layout_kind == kKLuchrKind)
{
/* Get chr data */
KLGetKeyboardLayoutProperty (new_layout, kKLuchrData, (const void **)&chr_data);
#endif
for (i = 0; i < NUM_KEYCODES; i++)
{
int j;
UInt32 modifiers[] = {0, shiftKey, optionKey, shiftKey | optionKey};
UniChar chars[4];
UniCharCount nChars;
p = keyval_array + i * KEYVALS_PER_KEYCODE;
for (j = 0; j < KEYVALS_PER_KEYCODE; j++)
{
UInt32 state = 0;
OSStatus err;
UInt16 key_code;
UniChar uc;
key_code = modifiers[j] | i;
err = UCKeyTranslate (chr_data, i, kUCKeyActionDown,
(modifiers[j] >> 8) & 0xFF,
LMGetKbdType(),
kUCKeyTranslateNoDeadKeysMask,
&state, 4, &nChars, chars);
/* FIXME: Theoretically, we can get multiple UTF-16 values;
* we should convert them to proper unicode and figure
* out whether there are really keyboard layouts that
* give us more than one character for one keypress. */
if (err == noErr && nChars == 1)
{
int k;
gboolean found = FALSE;
uc = chars[0];
for (k = 0; k < G_N_ELEMENTS (special_ucs_table); k++)
{
if (special_ucs_table[k].ucs_value == uc)
{
p[j] = special_ucs_table[k].keyval;
found = TRUE;
break;
}
}
/* Special-case shift-tab since GTK+ expects
* GDK_ISO_Left_Tab for that.
*/
if (found && p[j] == GDK_Tab && modifiers[j] == shiftKey)
p[j] = GDK_ISO_Left_Tab;
if (!found)
{
guint tmp;
tmp = gdk_unicode_to_keyval (uc);
if (tmp != (uc | 0x01000000))
p[j] = tmp;
else
p[j] = 0;
}
}
}
if (p[3] == p[2])
p[3] = 0;
if (p[2] == p[1])
p[2] = 0;
if (p[1] == p[0])
p[1] = 0;
if (p[0] == p[2] &&
p[1] == p[3])
p[2] = p[3] = 0;
}
#ifndef __LP64__
}
else
{
g_error ("unknown type of keyboard layout (neither KCHR nor uchr)"
" - not supported right now");
}
#endif
for (i = 0; i < G_N_ELEMENTS (known_keys); i++)
{
p = keyval_array + known_keys[i].keycode * KEYVALS_PER_KEYCODE;
if (p[0] == 0 && p[1] == 0 &&
p[2] == 0 && p[3] == 0)
p[0] = known_keys[i].keyval;
}
for (i = 0; i < G_N_ELEMENTS (known_numeric_keys); i++)
{
p = keyval_array + known_numeric_keys[i].keycode * KEYVALS_PER_KEYCODE;
if (p[0] == known_numeric_keys[i].normal_keyval)
p[0] = known_numeric_keys[i].keypad_keyval;
}
if (current_layout)
g_signal_emit_by_name (default_keymap, "keys_changed");
current_layout = new_layout;
}
}
GdkKeymap *
gdk_keymap_get_for_display (GdkDisplay *display)
{
g_return_val_if_fail (display == gdk_display_get_default (), NULL);
if (default_keymap == NULL)
default_keymap = g_object_new (gdk_keymap_get_type (), NULL);
return default_keymap;
}
PangoDirection
gdk_keymap_get_direction (GdkKeymap *keymap)
{
return PANGO_DIRECTION_NEUTRAL;
}
gboolean
gdk_keymap_have_bidi_layouts (GdkKeymap *keymap)
{
/* FIXME: Can we implement this? */
return FALSE;
}
gboolean
gdk_keymap_get_caps_lock_state (GdkKeymap *keymap)
{
/* FIXME: Implement this. */
return FALSE;
}
gboolean
gdk_keymap_get_entries_for_keyval (GdkKeymap *keymap,
guint keyval,
GdkKeymapKey **keys,
gint *n_keys)
{
GArray *keys_array;
int i;
g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), FALSE);
g_return_val_if_fail (keys != NULL, FALSE);
g_return_val_if_fail (n_keys != NULL, FALSE);
g_return_val_if_fail (keyval != 0, FALSE);
maybe_update_keymap ();
*n_keys = 0;
keys_array = g_array_new (FALSE, FALSE, sizeof (GdkKeymapKey));
for (i = 0; i < NUM_KEYCODES * KEYVALS_PER_KEYCODE; i++)
{
GdkKeymapKey key;
if (keyval_array[i] != keyval)
continue;
(*n_keys)++;
key.keycode = i / KEYVALS_PER_KEYCODE;
key.group = 0;
key.level = i % KEYVALS_PER_KEYCODE;
g_array_append_val (keys_array, key);
}
*keys = (GdkKeymapKey *)g_array_free (keys_array, FALSE);
return *n_keys > 0;;
}
gboolean
gdk_keymap_get_entries_for_keycode (GdkKeymap *keymap,
guint hardware_keycode,
GdkKeymapKey **keys,
guint **keyvals,
gint *n_entries)
{
GArray *keys_array, *keyvals_array;
int i;
guint *p;
g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), FALSE);
g_return_val_if_fail (n_entries != NULL, FALSE);
maybe_update_keymap ();
*n_entries = 0;
if (hardware_keycode > NUM_KEYCODES)
return FALSE;
if (keys)
keys_array = g_array_new (FALSE, FALSE, sizeof (GdkKeymapKey));
else
keys_array = NULL;
if (keyvals)
keyvals_array = g_array_new (FALSE, FALSE, sizeof (guint));
else
keyvals_array = NULL;
p = keyval_array + hardware_keycode * KEYVALS_PER_KEYCODE;
for (i = 0; i < KEYVALS_PER_KEYCODE; i++)
{
if (!p[i])
continue;
(*n_entries)++;
if (keyvals_array)
g_array_append_val (keyvals_array, p[i]);
if (keys_array)
{
GdkKeymapKey key;
key.keycode = hardware_keycode;
key.group = i / 2;
key.level = i % 2;
g_array_append_val (keys_array, key);
}
}
if (keys)
*keys = (GdkKeymapKey *)g_array_free (keys_array, FALSE);
if (keyvals)
*keyvals = (guint *)g_array_free (keyvals_array, FALSE);
return *n_entries > 0;
}
guint
gdk_keymap_lookup_key (GdkKeymap *keymap,
const GdkKeymapKey *key)
{
g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), 0);
g_return_val_if_fail (key != NULL, 0);
g_return_val_if_fail (key->group < 4, 0);
/* FIXME: Implement */
return 0;
}
#define GET_KEYVAL(keycode, group, level) (keyval_array[(keycode * KEYVALS_PER_KEYCODE + group * 2 + level)])
static guint
translate_keysym (guint hardware_keycode,
gint group,
GdkModifierType state,
gint *effective_group,
gint *effective_level)
{
gint level;
guint tmp_keyval;
level = (state & GDK_SHIFT_MASK) ? 1 : 0;
if (!(GET_KEYVAL (hardware_keycode, group, 0) || GET_KEYVAL (hardware_keycode, group, 1)) &&
(GET_KEYVAL (hardware_keycode, 0, 0) || GET_KEYVAL (hardware_keycode, 0, 1)))
group = 0;
if (!GET_KEYVAL (hardware_keycode, group, level) &&
GET_KEYVAL (hardware_keycode, group, 0))
level = 0;
tmp_keyval = GET_KEYVAL (hardware_keycode, group, level);
if (state & GDK_LOCK_MASK)
{
guint upper = gdk_keyval_to_upper (tmp_keyval);
if (upper != tmp_keyval)
tmp_keyval = upper;
}
return tmp_keyval;
}
gboolean
gdk_keymap_translate_keyboard_state (GdkKeymap *keymap,
guint hardware_keycode,
GdkModifierType state,
gint group,
guint *keyval,
gint *effective_group,
gint *level,
GdkModifierType *consumed_modifiers)
{
guint tmp_keyval;
GdkModifierType bit;
guint tmp_modifiers = 0;
g_return_val_if_fail (keymap == NULL || GDK_IS_KEYMAP (keymap), FALSE);
g_return_val_if_fail (group >= 0 && group <= 1, FALSE);
maybe_update_keymap ();
if (keyval)
*keyval = 0;
if (effective_group)
*effective_group = 0;
if (level)
*level = 0;
if (consumed_modifiers)
*consumed_modifiers = 0;
if (hardware_keycode < 0 || hardware_keycode >= NUM_KEYCODES)
return FALSE;
/* Check if shift or capslock modify the keyval */
for (bit = GDK_SHIFT_MASK; bit < GDK_CONTROL_MASK; bit <<= 1)
{
if (translate_keysym (hardware_keycode, group, state & ~bit, NULL, NULL) !=
translate_keysym (hardware_keycode, group, state | bit, NULL, NULL))
tmp_modifiers |= bit;
}
tmp_keyval = translate_keysym (hardware_keycode, group, state, level, effective_group);
if (consumed_modifiers)
*consumed_modifiers = tmp_modifiers;
if (keyval)
*keyval = tmp_keyval;
return TRUE;
}
void
gdk_keymap_add_virtual_modifiers (GdkKeymap *keymap,
GdkModifierType *state)
{
/* FIXME: For now, we've mimiced the Windows backend. */
}
gboolean
gdk_keymap_map_virtual_modifiers (GdkKeymap *keymap,
GdkModifierType *state)
{
/* FIXME: For now, we've mimiced the Windows backend. */
return TRUE;
}
/* What sort of key event is this? Returns one of
* GDK_KEY_PRESS, GDK_KEY_RELEASE, GDK_NOTHING (should be ignored)
*/
GdkEventType
_gdk_quartz_keys_event_type (NSEvent *event)
{
unsigned short keycode;
unsigned int flags;
int i;
switch ([event type])
{
case NSKeyDown:
return GDK_KEY_PRESS;
case NSKeyUp:
return GDK_KEY_RELEASE;
case NSFlagsChanged:
break;
default:
g_assert_not_reached ();
}
/* For flags-changed events, we have to find the special key that caused the
* event, and see if it's in the modifier mask. */
keycode = [event keyCode];
flags = [event modifierFlags];
for (i = 0; i < G_N_ELEMENTS (known_keys); i++)
{
if (known_keys[i].keycode == keycode)
{
if (flags & known_keys[i].modmask)
return GDK_KEY_PRESS;
else
return GDK_KEY_RELEASE;
}
}
/* Some keypresses (eg: Expose' activations) seem to trigger flags-changed
* events for no good reason. Ignore them! */
return GDK_NOTHING;
}
gboolean
_gdk_quartz_keys_is_modifier (guint keycode)
{
gint i;
for (i = 0; i < G_N_ELEMENTS (known_keys); i++)
{
if (known_keys[i].modmask == 0)
break;
if (known_keys[i].keycode == keycode)
return TRUE;
}
return FALSE;
}
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