From 27bc0889c87a49100bf4b1c0ecf01be1629ff9c6 Mon Sep 17 00:00:00 2001
From: Carlos Garnacho <carlosg@gnome.org>
Date: Tue, 20 Sep 2022 18:08:44 +0200
Subject: [PATCH] xsettings: Always fallback to ibus

Traditionally, we've used ibus strictly when necessary (i.e. there
was an IM configured that required IBus to be enabled). A bit more
recently, we added OSK checks so that environments with an OSK
would also have IBus enabled so that GNOME Shell could track focus
positions without pulling a11y.

Nowadays, we simply want ibus always enabled, even if the underlying
keymap wouldn't seemingly use its features. We anyways want it for
the handling of emojis and dead keys.

Always enable IBus for X11 clients, unless there is another IM
configured in the global GSetting.

Closes: https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/issues/705
---
 plugins/xsettings/gsd-xsettings-manager.c | 70 +----------------------
 1 file changed, 1 insertion(+), 69 deletions(-)

diff --git a/plugins/xsettings/gsd-xsettings-manager.c b/plugins/xsettings/gsd-xsettings-manager.c
index 68b6ed77..567d3bbd 100644
--- a/plugins/xsettings/gsd-xsettings-manager.c
+++ b/plugins/xsettings/gsd-xsettings-manager.c
@@ -57,8 +57,6 @@
 #define WM_SETTINGS_SCHEMA        "org.gnome.desktop.wm.preferences"
 #define A11Y_SCHEMA               "org.gnome.desktop.a11y"
 #define A11Y_INTERFACE_SCHEMA     "org.gnome.desktop.a11y.interface"
-#define A11Y_APPLICATIONS_SCHEMA   "org.gnome.desktop.a11y.applications"
-#define INPUT_SOURCES_SCHEMA       "org.gnome.desktop.input-sources"
 #define CLASSIC_WM_SETTINGS_SCHEMA "org.gnome.shell.extensions.classic-overrides"
 
 #define XSETTINGS_PLUGIN_SCHEMA "org.gnome.settings-daemon.plugins.xsettings"
@@ -77,16 +75,11 @@
 
 #define HIGH_CONTRAST_KEY "high-contrast"
 
-#define INPUT_SOURCES_KEY      "sources"
-#define OSK_ENABLED_KEY        "screen-keyboard-enabled"
 #define GTK_IM_MODULE_KEY      "gtk-im-module"
 
 #define GTK_SETTINGS_DBUS_PATH "/org/gtk/Settings"
 #define GTK_SETTINGS_DBUS_NAME "org.gtk.Settings"
 
-#define INPUT_SOURCE_TYPE_IBUS "ibus"
-
-#define GTK_IM_MODULE_SIMPLE "gtk-im-context-simple"
 #define GTK_IM_MODULE_IBUS   "ibus"
 
 static const gchar introspection_xml[] =
@@ -292,8 +285,6 @@ struct _GsdXSettingsManager
         gint64             fontconfig_timestamp;
 
         GSettings         *interface_settings;
-        GSettings         *input_sources_settings;
-        GSettings         *a11y_settings;
         GdkSeat           *user_seat;
 
         GsdXSettingsGtk   *gtk;
@@ -1341,51 +1332,6 @@ migrate_settings (void)
                                     mouse_entries, G_N_ELEMENTS (mouse_entries));
 }
 
-static gboolean
-need_ibus (GsdXSettingsManager *manager)
-{
-        GVariant *sources;
-        GVariantIter iter;
-        const gchar *type;
-        gboolean needs_ibus = FALSE;
-
-        sources = g_settings_get_value (manager->input_sources_settings,
-                                        INPUT_SOURCES_KEY);
-
-        g_variant_iter_init (&iter, sources);
-        while (g_variant_iter_next (&iter, "(&s&s)", &type, NULL)) {
-                if (g_str_equal (type, INPUT_SOURCE_TYPE_IBUS)) {
-                        needs_ibus = TRUE;
-                        break;
-                }
-        }
-
-        g_variant_unref (sources);
-
-        return needs_ibus;
-}
-
-static gboolean
-need_osk (GsdXSettingsManager *manager)
-{
-        gboolean has_touchscreen = FALSE;
-        GList *devices;
-        GdkSeat *seat;
-
-        if (g_settings_get_boolean (manager->a11y_settings,
-                                    OSK_ENABLED_KEY))
-                return TRUE;
-
-        seat = gdk_display_get_default_seat (gdk_display_get_default ());
-        devices = gdk_seat_get_slaves (seat, GDK_SEAT_CAPABILITY_TOUCH);
-
-        has_touchscreen = devices != NULL;
-
-        g_list_free (devices);
-
-        return has_touchscreen;
-}
-
 static void
 update_gtk_im_module (GsdXSettingsManager *manager)
 {
@@ -1396,10 +1342,8 @@ update_gtk_im_module (GsdXSettingsManager *manager)
                                          GTK_IM_MODULE_KEY);
         if (setting && *setting)
                 module = setting;
-        else if (need_ibus (manager) || need_osk (manager))
-                module = GTK_IM_MODULE_IBUS;
         else
-                module = GTK_IM_MODULE_SIMPLE;
+                module = GTK_IM_MODULE_IBUS;
 
         xsettings_manager_set_string (manager->manager, "Gtk/IMModule", module);
         g_free (setting);
@@ -1473,16 +1417,6 @@ gsd_xsettings_manager_start (GsdXSettingsManager *manager,
         g_signal_connect_swapped (manager->interface_settings,
                                   "changed::" GTK_IM_MODULE_KEY,
                                   G_CALLBACK (update_gtk_im_module), manager);
-
-        manager->input_sources_settings = g_settings_new (INPUT_SOURCES_SCHEMA);
-        g_signal_connect_swapped (manager->input_sources_settings,
-                                  "changed::" INPUT_SOURCES_KEY,
-                                  G_CALLBACK (update_gtk_im_module), manager);
-
-        manager->a11y_settings = g_settings_new (A11Y_APPLICATIONS_SCHEMA);
-        g_signal_connect_swapped (manager->a11y_settings,
-                                  "changed::" OSK_ENABLED_KEY,
-                                  G_CALLBACK (update_gtk_im_module), manager);
         update_gtk_im_module (manager);
 
         manager->monitors_changed_id =
@@ -1689,8 +1623,6 @@ gsd_xsettings_manager_stop (GsdXSettingsManager *manager)
                 manager->user_seat = NULL;
         }
 
-        g_clear_object (&manager->a11y_settings);
-        g_clear_object (&manager->input_sources_settings);
         g_clear_object (&manager->interface_settings);
 }
 
-- 
GitLab