mirror of
https://github.com/brl/mutter.git
synced 2024-11-30 03:50:47 -05:00
e160babe3f
meta_parse_accelerator() considers 0 length accelerator strings as valid, meaning that the keybinding should be disabled. Unfortunately, it doesn't initialize the MetaKeyCombo so if the caller doesn't initialize it either, we end up using random values and possibly grabbing random keys. https://bugzilla.gnome.org/show_bug.cgi?id=766270
358 lines
9.9 KiB
C
358 lines
9.9 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
|
|
|
|
/*
|
|
* Copyright (C) 2014 Red Hat
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This program 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
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
|
|
* 02111-1307, USA.
|
|
*
|
|
* Written by:
|
|
* Jasper St. Pierre <jstpierre@mecheye.net>
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "meta-accel-parse.h"
|
|
#include "keybindings-private.h"
|
|
|
|
#include <xkbcommon/xkbcommon.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
/* This is copied from GTK+ and modified to work with mutter's
|
|
* internal structures. Originating code comes from gtk/gtkaccelgroup.c
|
|
*/
|
|
|
|
static inline gboolean
|
|
is_alt (const gchar *string)
|
|
{
|
|
return ((string[0] == '<') &&
|
|
(string[1] == 'a' || string[1] == 'A') &&
|
|
(string[2] == 'l' || string[2] == 'L') &&
|
|
(string[3] == 't' || string[3] == 'T') &&
|
|
(string[4] == '>'));
|
|
}
|
|
|
|
static inline gboolean
|
|
is_ctl (const gchar *string)
|
|
{
|
|
return ((string[0] == '<') &&
|
|
(string[1] == 'c' || string[1] == 'C') &&
|
|
(string[2] == 't' || string[2] == 'T') &&
|
|
(string[3] == 'l' || string[3] == 'L') &&
|
|
(string[4] == '>'));
|
|
}
|
|
|
|
static inline gboolean
|
|
is_modx (const gchar *string)
|
|
{
|
|
return ((string[0] == '<') &&
|
|
(string[1] == 'm' || string[1] == 'M') &&
|
|
(string[2] == 'o' || string[2] == 'O') &&
|
|
(string[3] == 'd' || string[3] == 'D') &&
|
|
(string[4] >= '1' && string[4] <= '5') &&
|
|
(string[5] == '>'));
|
|
}
|
|
|
|
static inline gboolean
|
|
is_ctrl (const gchar *string)
|
|
{
|
|
return ((string[0] == '<') &&
|
|
(string[1] == 'c' || string[1] == 'C') &&
|
|
(string[2] == 't' || string[2] == 'T') &&
|
|
(string[3] == 'r' || string[3] == 'R') &&
|
|
(string[4] == 'l' || string[4] == 'L') &&
|
|
(string[5] == '>'));
|
|
}
|
|
|
|
static inline gboolean
|
|
is_shft (const gchar *string)
|
|
{
|
|
return ((string[0] == '<') &&
|
|
(string[1] == 's' || string[1] == 'S') &&
|
|
(string[2] == 'h' || string[2] == 'H') &&
|
|
(string[3] == 'f' || string[3] == 'F') &&
|
|
(string[4] == 't' || string[4] == 'T') &&
|
|
(string[5] == '>'));
|
|
}
|
|
|
|
static inline gboolean
|
|
is_shift (const gchar *string)
|
|
{
|
|
return ((string[0] == '<') &&
|
|
(string[1] == 's' || string[1] == 'S') &&
|
|
(string[2] == 'h' || string[2] == 'H') &&
|
|
(string[3] == 'i' || string[3] == 'I') &&
|
|
(string[4] == 'f' || string[4] == 'F') &&
|
|
(string[5] == 't' || string[5] == 'T') &&
|
|
(string[6] == '>'));
|
|
}
|
|
|
|
static inline gboolean
|
|
is_control (const gchar *string)
|
|
{
|
|
return ((string[0] == '<') &&
|
|
(string[1] == 'c' || string[1] == 'C') &&
|
|
(string[2] == 'o' || string[2] == 'O') &&
|
|
(string[3] == 'n' || string[3] == 'N') &&
|
|
(string[4] == 't' || string[4] == 'T') &&
|
|
(string[5] == 'r' || string[5] == 'R') &&
|
|
(string[6] == 'o' || string[6] == 'O') &&
|
|
(string[7] == 'l' || string[7] == 'L') &&
|
|
(string[8] == '>'));
|
|
}
|
|
|
|
static inline gboolean
|
|
is_meta (const gchar *string)
|
|
{
|
|
return ((string[0] == '<') &&
|
|
(string[1] == 'm' || string[1] == 'M') &&
|
|
(string[2] == 'e' || string[2] == 'E') &&
|
|
(string[3] == 't' || string[3] == 'T') &&
|
|
(string[4] == 'a' || string[4] == 'A') &&
|
|
(string[5] == '>'));
|
|
}
|
|
|
|
static inline gboolean
|
|
is_super (const gchar *string)
|
|
{
|
|
return ((string[0] == '<') &&
|
|
(string[1] == 's' || string[1] == 'S') &&
|
|
(string[2] == 'u' || string[2] == 'U') &&
|
|
(string[3] == 'p' || string[3] == 'P') &&
|
|
(string[4] == 'e' || string[4] == 'E') &&
|
|
(string[5] == 'r' || string[5] == 'R') &&
|
|
(string[6] == '>'));
|
|
}
|
|
|
|
static inline gboolean
|
|
is_hyper (const gchar *string)
|
|
{
|
|
return ((string[0] == '<') &&
|
|
(string[1] == 'h' || string[1] == 'H') &&
|
|
(string[2] == 'y' || string[2] == 'Y') &&
|
|
(string[3] == 'p' || string[3] == 'P') &&
|
|
(string[4] == 'e' || string[4] == 'E') &&
|
|
(string[5] == 'r' || string[5] == 'R') &&
|
|
(string[6] == '>'));
|
|
}
|
|
|
|
static inline gboolean
|
|
is_primary (const gchar *string)
|
|
{
|
|
return ((string[0] == '<') &&
|
|
(string[1] == 'p' || string[1] == 'P') &&
|
|
(string[2] == 'r' || string[2] == 'R') &&
|
|
(string[3] == 'i' || string[3] == 'I') &&
|
|
(string[4] == 'm' || string[4] == 'M') &&
|
|
(string[5] == 'a' || string[5] == 'A') &&
|
|
(string[6] == 'r' || string[6] == 'R') &&
|
|
(string[7] == 'y' || string[7] == 'Y') &&
|
|
(string[8] == '>'));
|
|
}
|
|
|
|
static inline gboolean
|
|
is_keycode (const gchar *string)
|
|
{
|
|
return (string[0] == '0' &&
|
|
string[1] == 'x' &&
|
|
g_ascii_isxdigit (string[2]) &&
|
|
g_ascii_isxdigit (string[3]));
|
|
}
|
|
|
|
static gboolean
|
|
accelerator_parse (const gchar *accelerator,
|
|
MetaKeyCombo *combo)
|
|
{
|
|
guint keyval, keycode;
|
|
MetaVirtualModifier mods;
|
|
gint len;
|
|
|
|
combo->keysym = 0;
|
|
combo->keycode = 0;
|
|
combo->modifiers = 0;
|
|
|
|
if (accelerator == NULL)
|
|
return FALSE;
|
|
|
|
keyval = 0;
|
|
keycode = 0;
|
|
mods = 0;
|
|
len = strlen (accelerator);
|
|
while (len)
|
|
{
|
|
if (*accelerator == '<')
|
|
{
|
|
if (len >= 9 && is_primary (accelerator))
|
|
{
|
|
/* Primary is treated the same as Control */
|
|
accelerator += 9;
|
|
len -= 9;
|
|
mods |= META_VIRTUAL_CONTROL_MASK;
|
|
}
|
|
else if (len >= 9 && is_control (accelerator))
|
|
{
|
|
accelerator += 9;
|
|
len -= 9;
|
|
mods |= META_VIRTUAL_CONTROL_MASK;
|
|
}
|
|
else if (len >= 7 && is_shift (accelerator))
|
|
{
|
|
accelerator += 7;
|
|
len -= 7;
|
|
mods |= META_VIRTUAL_SHIFT_MASK;
|
|
}
|
|
else if (len >= 6 && is_shft (accelerator))
|
|
{
|
|
accelerator += 6;
|
|
len -= 6;
|
|
mods |= META_VIRTUAL_SHIFT_MASK;
|
|
}
|
|
else if (len >= 6 && is_ctrl (accelerator))
|
|
{
|
|
accelerator += 6;
|
|
len -= 6;
|
|
mods |= META_VIRTUAL_CONTROL_MASK;
|
|
}
|
|
else if (len >= 6 && is_modx (accelerator))
|
|
{
|
|
static const guint mod_vals[] = {
|
|
META_VIRTUAL_ALT_MASK,
|
|
META_VIRTUAL_MOD2_MASK,
|
|
META_VIRTUAL_MOD3_MASK,
|
|
META_VIRTUAL_MOD4_MASK,
|
|
META_VIRTUAL_MOD5_MASK,
|
|
};
|
|
|
|
len -= 6;
|
|
accelerator += 4;
|
|
mods |= mod_vals[*accelerator - '1'];
|
|
accelerator += 2;
|
|
}
|
|
else if (len >= 5 && is_ctl (accelerator))
|
|
{
|
|
accelerator += 5;
|
|
len -= 5;
|
|
mods |= META_VIRTUAL_CONTROL_MASK;
|
|
}
|
|
else if (len >= 5 && is_alt (accelerator))
|
|
{
|
|
accelerator += 5;
|
|
len -= 5;
|
|
mods |= META_VIRTUAL_ALT_MASK;
|
|
}
|
|
else if (len >= 6 && is_meta (accelerator))
|
|
{
|
|
accelerator += 6;
|
|
len -= 6;
|
|
mods |= META_VIRTUAL_META_MASK;
|
|
}
|
|
else if (len >= 7 && is_hyper (accelerator))
|
|
{
|
|
accelerator += 7;
|
|
len -= 7;
|
|
mods |= META_VIRTUAL_HYPER_MASK;
|
|
}
|
|
else if (len >= 7 && is_super (accelerator))
|
|
{
|
|
accelerator += 7;
|
|
len -= 7;
|
|
mods |= META_VIRTUAL_SUPER_MASK;
|
|
}
|
|
else
|
|
{
|
|
gchar last_ch;
|
|
|
|
last_ch = *accelerator;
|
|
while (last_ch && last_ch != '>')
|
|
{
|
|
last_ch = *accelerator;
|
|
accelerator += 1;
|
|
len -= 1;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (len >= 4 && is_keycode (accelerator))
|
|
{
|
|
keycode = strtoul (accelerator, NULL, 16);
|
|
goto out;
|
|
}
|
|
else if (strcmp (accelerator, "Above_Tab") == 0)
|
|
{
|
|
keyval = META_KEY_ABOVE_TAB;
|
|
goto out;
|
|
}
|
|
else
|
|
{
|
|
keyval = xkb_keysym_from_name (accelerator, XKB_KEYSYM_CASE_INSENSITIVE);
|
|
if (keyval == XKB_KEY_NoSymbol)
|
|
{
|
|
char *with_xf86 = g_strconcat ("XF86", accelerator, NULL);
|
|
keyval = xkb_keysym_from_name (with_xf86, XKB_KEYSYM_CASE_INSENSITIVE);
|
|
g_free (with_xf86);
|
|
|
|
if (keyval == XKB_KEY_NoSymbol)
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
accelerator += len;
|
|
len -= len;
|
|
}
|
|
}
|
|
|
|
out:
|
|
combo->keysym = keyval;
|
|
combo->keycode = keycode;
|
|
combo->modifiers = mods;
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
meta_parse_accelerator (const char *accel,
|
|
MetaKeyCombo *combo)
|
|
{
|
|
g_return_val_if_fail (combo != NULL, FALSE);
|
|
|
|
*combo = (MetaKeyCombo) { 0 };
|
|
|
|
if (!accel[0] || strcmp (accel, "disabled") == 0)
|
|
return TRUE;
|
|
|
|
return accelerator_parse (accel, combo);
|
|
}
|
|
|
|
gboolean
|
|
meta_parse_modifier (const char *accel,
|
|
MetaVirtualModifier *mask)
|
|
{
|
|
MetaKeyCombo combo = { 0 };
|
|
|
|
g_return_val_if_fail (mask != NULL, FALSE);
|
|
|
|
*mask = 0;
|
|
|
|
if (accel == NULL || !accel[0] || strcmp (accel, "disabled") == 0)
|
|
return TRUE;
|
|
|
|
if (!accelerator_parse (accel, &combo))
|
|
return FALSE;
|
|
|
|
*mask = combo.modifiers;
|
|
return TRUE;
|
|
}
|