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Try to improve parsing of Keybinding. Give more specific error of what failed.

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+ Implementation is slower. but is one time, so should be fine.
This commit is contained in:
Dave Davenport 2016-11-14 18:32:22 +01:00
parent 0a70d73d82
commit 29cacd0e83
2 changed files with 58 additions and 61 deletions
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2
include/x11-helper.h
View file

@ -162,7 +162,7 @@ unsigned int x11_get_current_mask ( xkb_stuff *xkb );
*
* Parse key from user input string.
*/
gboolean x11_parse_key ( char *combo, unsigned int *mod, xkb_keysym_t *key, gboolean *release, GString * );
gboolean x11_parse_key ( const char *combo, unsigned int *mod, xkb_keysym_t *key, gboolean *release, GString * );
/**
* Setup several items required.

117
source/x11-helper.c
View file

@ -612,83 +612,80 @@ unsigned int x11_get_current_mask ( xkb_stuff *xkb )
}
// convert a Mod+key arg to mod mask and keysym
gboolean x11_parse_key ( char *combo, unsigned int *mod, xkb_keysym_t *key, gboolean *release, GString *str )
gboolean x11_parse_key ( const char *combo, unsigned int *mod, xkb_keysym_t *key, gboolean *release, GString *str )
{
unsigned int modmask = 0;
if ( g_str_has_prefix ( combo, "!" ) ) {
++combo;
char *input_key = g_strdup ( combo );
char *mod_key = input_key;
char *error_msg = NULL;
unsigned int modmask = 0;
// Test if this works on release.
if ( g_str_has_prefix ( mod_key, "!" ) ) {
++mod_key;
*release = TRUE;
}
// TODO split this into tokonized parsing, so propper error can be generated.
if ( strcasestr ( combo, "shift" ) ) {
modmask |= x11_mod_masks[X11MOD_SHIFT];
if ( x11_mod_masks[X11MOD_SHIFT] == 0 ) {
g_string_append_printf ( str, "X11 configured keyboard has no <b>Shift</b> key.\n" );
char *saveptr = NULL;
xkb_keysym_t sym = XKB_KEY_NoSymbol;
for ( char *entry = strtok_r ( mod_key, "+-", &saveptr ); error_msg == NULL && entry != NULL;
entry = strtok_r ( NULL, "+-", &saveptr ) ) {
// Compare against lowered version.
char *entry_lowered = g_utf8_strdown ( entry, -1 );
if ( g_utf8_collate ( entry_lowered, "shift" ) == 0 ) {
modmask |= x11_mod_masks[X11MOD_SHIFT];
if ( x11_mod_masks[X11MOD_SHIFT] == 0 ) {
error_msg = g_strdup ( "X11 configured keyboard has no <b>Shift</b> key.\n" );
}
}
}
if ( strcasestr ( combo, "control" ) ) {
modmask |= x11_mod_masks[X11MOD_CONTROL];
if ( x11_mod_masks[X11MOD_CONTROL] == 0 ) {
g_string_append_printf ( str, "X11 configured keyboard has no <b>Control</b> key.\n" );
else if ( g_utf8_collate ( entry_lowered, "control" ) == 0 ) {
modmask |= x11_mod_masks[X11MOD_CONTROL];
if ( x11_mod_masks[X11MOD_CONTROL] == 0 ) {
error_msg = g_strdup ( "X11 configured keyboard has no <b>Control</b> key.\n" );
}
}
}
if ( strcasestr ( combo, "alt" ) ) {
modmask |= x11_mod_masks[X11MOD_ALT];
if ( x11_mod_masks[X11MOD_ALT] == 0 ) {
g_string_append_printf ( str, "X11 configured keyboard has no <b>Alt</b> key.\n" );
else if ( g_utf8_collate ( entry_lowered, "alt" ) == 0 ) {
modmask |= x11_mod_masks[X11MOD_ALT];
if ( x11_mod_masks[X11MOD_ALT] == 0 ) {
error_msg = g_strdup ( "X11 configured keyboard has no <b>Alt</b> key.\n" );
}
}
}
if ( strcasestr ( combo, "super" ) ) {
modmask |= x11_mod_masks[X11MOD_SUPER];
if ( x11_mod_masks[X11MOD_SUPER] == 0 ) {
g_string_append_printf ( str, "X11 configured keyboard has no <b>Super</b> key.\n" );
else if ( g_utf8_collate ( entry_lowered, "super" ) == 0 ) {
modmask |= x11_mod_masks[X11MOD_SUPER];
if ( x11_mod_masks[X11MOD_SUPER] == 0 ) {
error_msg = g_strdup ( "X11 configured keyboard has no <b>Super</b> key.\n" );
}
}
}
if ( strcasestr ( combo, "meta" ) ) {
modmask |= x11_mod_masks[X11MOD_META];
if ( x11_mod_masks[X11MOD_META] == 0 ) {
g_string_append_printf ( str, "X11 configured keyboard has no <b>Meta</b> key.\n" );
else if ( g_utf8_collate ( entry_lowered, "meta" ) == 0 ) {
modmask |= x11_mod_masks[X11MOD_META];
if ( x11_mod_masks[X11MOD_META] == 0 ) {
error_msg = g_strdup ( "X11 configured keyboard has no <b>Meta</b> key.\n" );
}
}
}
if ( strcasestr ( combo, "hyper" ) ) {
modmask |= x11_mod_masks[X11MOD_HYPER];
if ( x11_mod_masks[X11MOD_HYPER] == 0 ) {
g_string_append_printf ( str, "X11 configured keyboard has no <b>Hyper</b> key.\n" );
else if ( g_utf8_collate ( entry_lowered, "hyper" ) == 0 ) {
modmask |= x11_mod_masks[X11MOD_HYPER];
if ( x11_mod_masks[X11MOD_HYPER] == 0 ) {
error_msg = g_strdup ( "X11 configured keyboard has no <b>Hyper</b> key.\n" );
}
}
else {
sym = xkb_keysym_from_name ( entry, XKB_KEYSYM_NO_FLAGS );
if ( sym == XKB_KEY_NoSymbol ) {
error_msg = g_markup_printf_escaped ( "∙ Key <i>%s</i> is not understood\n", entry );
}
}
g_free ( entry_lowered );
}
// Find location of modifier (if it exists)
char i = strlen ( combo );
g_free ( input_key );
while ( i > 0 && !strchr ( "-+", combo[i - 1] ) ) {
i--;
}
// if there's no "-" or "+", we might be binding directly to a modifier key - no modmask
if ( i == 0 ) {
*mod = 0;
}
else {
*mod = modmask;
}
// Parse key
xkb_keysym_t sym = XKB_KEY_NoSymbol;
sym = xkb_keysym_from_name ( combo + i, XKB_KEYSYM_NO_FLAGS );
if ( sym == XKB_KEY_NoSymbol || ( !modmask && ( strchr ( combo, '-' ) || strchr ( combo, '+' ) ) ) ) {
if ( error_msg ) {
g_string_append_printf ( str, "Sorry, rofi cannot understand the key combination: <i>%s</i>\n", combo );
if ( sym == XKB_KEY_NoSymbol ) {
g_string_append_printf ( str, "∙ Key <i>%s</i> is not understood\n", combo + i );
}
if ( ( !modmask && ( strchr ( combo, '-' ) || strchr ( combo, '+' ) ) ) ) {
g_string_append ( str, "∙ Rofi supports the following modifiers: <i>Shift,Control,Alt,Super,Meta,Hyper</i>\n" );
}
g_string_append ( str, error_msg );
g_free ( error_msg );
g_string_append_c ( str, '\n' );
return FALSE;
}
*key = sym;
*mod = modmask;
return TRUE;
}