accel-parse: Copy the code from GTK+ in-tree

We can't use GTK+ for accelerator parsing under Wayland, since we
don't want to go through Xwayland to make that happen.
This commit is contained in:
Jasper St. Pierre 2014-04-07 10:54:21 -04:00
parent 0466fe9301
commit 242784d3e4

View File

@ -30,6 +30,307 @@
#include <string.h>
#include <stdlib.h>
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_release (const gchar *string)
{
return ((string[0] == '<') &&
(string[1] == 'r' || string[1] == 'R') &&
(string[2] == 'e' || string[2] == 'E') &&
(string[3] == 'l' || string[3] == 'L') &&
(string[4] == 'e' || string[4] == 'E') &&
(string[5] == 'a' || string[5] == 'A') &&
(string[6] == 's' || string[6] == 'S') &&
(string[7] == 'e' || string[7] == 'E') &&
(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 void
do_accelerator_parse (const gchar *accelerator,
guint *accelerator_key,
GdkModifierType *accelerator_mods)
{
guint keyval;
GdkModifierType mods;
gint len;
gboolean error;
if (accelerator_key)
*accelerator_key = 0;
if (accelerator_mods)
*accelerator_mods = 0;
g_return_if_fail (accelerator != NULL);
error = FALSE;
keyval = 0;
mods = 0;
len = strlen (accelerator);
while (len)
{
if (*accelerator == '<')
{
if (len >= 9 && is_release (accelerator))
{
accelerator += 9;
len -= 9;
mods |= GDK_RELEASE_MASK;
}
else if (len >= 9 && is_primary (accelerator))
{
/* Primary is treated the same as Control */
accelerator += 9;
len -= 9;
mods |= GDK_CONTROL_MASK;
}
else if (len >= 9 && is_control (accelerator))
{
accelerator += 9;
len -= 9;
mods |= GDK_CONTROL_MASK;
}
else if (len >= 7 && is_shift (accelerator))
{
accelerator += 7;
len -= 7;
mods |= GDK_SHIFT_MASK;
}
else if (len >= 6 && is_shft (accelerator))
{
accelerator += 6;
len -= 6;
mods |= GDK_SHIFT_MASK;
}
else if (len >= 6 && is_ctrl (accelerator))
{
accelerator += 6;
len -= 6;
mods |= GDK_CONTROL_MASK;
}
else if (len >= 6 && is_modx (accelerator))
{
static const guint mod_vals[] = {
GDK_MOD1_MASK, GDK_MOD2_MASK, GDK_MOD3_MASK,
GDK_MOD4_MASK, GDK_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 |= GDK_CONTROL_MASK;
}
else if (len >= 5 && is_alt (accelerator))
{
accelerator += 5;
len -= 5;
mods |= GDK_MOD1_MASK;
}
else if (len >= 6 && is_meta (accelerator))
{
accelerator += 6;
len -= 6;
mods |= GDK_META_MASK;
}
else if (len >= 7 && is_hyper (accelerator))
{
accelerator += 7;
len -= 7;
mods |= GDK_HYPER_MASK;
}
else if (len >= 7 && is_super (accelerator))
{
accelerator += 7;
len -= 7;
mods |= GDK_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))
{
/* There was a keycode in the string, but
* we cannot store it, so we have an error */
error = TRUE;
goto out;
}
else
{
keyval = gdk_keyval_from_name (accelerator);
if (keyval == GDK_KEY_VoidSymbol)
{
error = TRUE;
goto out;
}
}
accelerator += len;
len -= len;
}
}
out:
if (error)
keyval = mods = 0;
if (accelerator_key)
*accelerator_key = gdk_keyval_to_lower (keyval);
if (accelerator_mods)
*accelerator_mods = mods;
}
static void
accelerator_parse (const char *accel,
guint *keysym,
@ -65,7 +366,7 @@ accelerator_parse (const char *accel,
char *after = g_strdup (above_tab + ABOVE_TAB_LEN);
char *replaced = g_strconcat (before, "Tab", after, NULL);
gtk_accelerator_parse (replaced, NULL, keymask);
do_accelerator_parse (replaced, NULL, keymask);
g_free (before);
g_free (after);
@ -79,7 +380,7 @@ accelerator_parse (const char *accel,
#undef ABOVE_TAB
#undef ABOVE_TAB_LEN
gtk_accelerator_parse (accel, keysym, keymask);
do_accelerator_parse (accel, keysym, keymask);
}
gboolean