shell-app-system: Do not compare startup-wm classes with full desktop IDs

When fetching the desktop ids into a map of startup-wm classes we meant
to give the ones that match the desktop ID more priority, however
this did not happen because we were always comparing a desktop
file id, including the `.desktop` suffix, with a wm-class that generally
does not include that.

This is the case of gnome-system-monitor, that provides two desktop
files, one of which is OnlyShowIn=KDE but both have the same
StartupWMClass and thus the first parsed is preferred, even though its
desktop-id is gnome-system-monitor-kde.

As per this, remove the .desktop suffix when comparing it with the
startup-wm-class, keeping the old check just in case.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2721>
This commit is contained in:
Marco Trevisan (Treviño) 2023-03-24 00:02:16 +01:00 committed by Marge Bot
parent 8d1fe3b4cb
commit e7a09946ca

View File

@ -91,6 +91,25 @@ static void shell_app_system_class_init(ShellAppSystemClass *klass)
G_TYPE_NONE, 0);
}
/*
* Check whether @wm_class matches @id exactly when ignoring the .desktop suffix
*/
static gboolean
startup_wm_class_is_exact_match (const char *id,
const char *wm_class)
{
size_t wm_class_len;
if (!g_str_has_prefix (id, wm_class))
return FALSE;
wm_class_len = strlen (wm_class);
if (id[wm_class_len] == '\0')
return TRUE;
return g_str_equal (id + wm_class_len, ".desktop");
}
static void
scan_startup_wm_class_to_id (ShellAppSystem *self)
{
@ -116,7 +135,8 @@ scan_startup_wm_class_to_id (ShellAppSystem *self)
/* In case multiple .desktop files set the same StartupWMClass, prefer
* the one where ID and StartupWMClass match */
old_id = g_hash_table_lookup (priv->startup_wm_class_to_id, startup_wm_class);
if (old_id == NULL || strcmp (id, startup_wm_class) == 0)
if (old_id == NULL ||
startup_wm_class_is_exact_match (id, startup_wm_class))
g_hash_table_insert (priv->startup_wm_class_to_id,
g_strdup (startup_wm_class), g_strdup (id));
}