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Bugfix: Use both parts of WM_CLASS (it contains instance and class) (Thanks fallen) 

Actually, WM_CLASS contains two null-terminated strings, so we cannot
use asprintf() to get its value but rather use strdup() to get both
of them. Both values are compared when a client is matched against
a wm_class/title combination (for assignments for example).
This commit is contained in:
Michael Stapelberg 2010-02-12 12:12:25 +01:00
parent 9568836e12
commit 0b6b8e8380
4 changed files with 25 additions and 23 deletions
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6
include/data.h
View File

@ -382,8 +382,10 @@ struct Client {
* in. If set to true, legacy window names are ignored. */
bool uses_net_wm_name;
/** Holds the WM_CLASS, useful for matching the client in commands */
char *window_class;
/** Holds the WM_CLASS (which consists of two strings, the instance
* and the class), useful for matching the client in commands */
char *window_class_instance;
char *window_class_class;
/** Holds the client’s mark, for vim-like jumping */
char *mark;

5
src/client.c
View File

@ -124,7 +124,10 @@ void client_kill(xcb_connection_t *conn, Client *window) {
bool client_matches_class_name(Client *client, char *to_class, char *to_title,
char *to_title_ucs, int to_title_ucs_len) {
/* Check if the given class is part of the window class */
if (client->window_class == NULL || strcasestr(client->window_class, to_class) == NULL)
if ((client->window_class_instance == NULL ||
strcasestr(client->window_class_instance, to_class) == NULL) &&
(client->window_class_class == NULL ||
strcasestr(client->window_class_class, to_class) == NULL))
return false;
/* If no title was given, we’re done */

34
src/handlers.c
View File

@ -539,7 +539,8 @@ int handle_unmap_notify_event(void *data, xcb_connection_t *conn, xcb_unmap_noti
client->urgent = false;
workspace_update_urgent_flag(client->workspace);
FREE(client->window_class);
FREE(client->window_class_instance);
FREE(client->window_class_class);
FREE(client->name);
free(client);
@ -696,28 +697,23 @@ int handle_windowclass_change(void *data, xcb_connection_t *conn, uint8_t state,
Client *client = table_get(&by_child, window);
if (client == NULL)
return 1;
char *new_class;
if (asprintf(&new_class, "%.*s", xcb_get_property_value_length(prop), (char*)xcb_get_property_value(prop)) == -1) {
perror("Could not get window class");
DLOG("Could not get window class\n");
return 1;
}
LOG("WM_CLASS changed to %s\n", new_class);
char *old_class = client->window_class;
client->window_class = new_class;
FREE(old_class);
/* We cannot use asprintf here since this property contains two
* null-terminated strings (for compatibility reasons). Instead, we
* use strdup() on both strings */
char *new_class = xcb_get_property_value(prop);
if (!client->initialized)
return 1;
FREE(client->window_class_instance);
FREE(client->window_class_class);
if (strcmp(new_class, "tools") == 0 || strcmp(new_class, "Dialog") == 0) {
DLOG("tool/dialog window, should we put it floating?\n");
if (client->floating == FLOATING_AUTO_OFF)
toggle_floating_mode(conn, client, true);
}
client->window_class_instance = strdup(new_class);
if ((strlen(new_class) + 1) < xcb_get_property_value_length(prop))
client->window_class_class = strdup(new_class + strlen(new_class) + 1);
else client->window_class_class = NULL;
LOG("WM_CLASS changed to %s (instance), %s (class)\n",
client->window_class_instance, client->window_class_class);
return 1;
return 0;
}
/*

3
src/util.c
View File

@ -448,7 +448,8 @@ Client *get_matching_client(xcb_connection_t *conn, const char *window_classtitl
Client *client;
SLIST_FOREACH(client, &(ws->focus_stack), focus_clients) {
DLOG("Checking client with class=%s, name=%s\n", client->window_class, client->name);
DLOG("Checking client with class=%s / %s, name=%s\n", client->window_class_instance,
client->window_class_class, client->name);
if (!client_matches_class_name(client, to_class, to_title, to_title_ucs, to_title_ucs_len))
continue;