From 40665b0fb168e28292c26aeed4619abd62e0c35f Mon Sep 17 00:00:00 2001 From: Carlos Garnacho Date: Wed, 12 Aug 2020 11:16:39 +0200 Subject: [PATCH] backends/native: Seal MetaKeymapNative xkb usage Don't let the vfuncs (meant to be called from the UI thread) deal with xkb state itself. Instead store the current state in struct fields, which is then fetched in vfuncs. This makes the keymap able to be used from the UI thread, while being maintained by the input thread. Same caveats apply than clutter_seat_query_state(), you are asking for the most up-to-date state, but it still may be changing under your feet. Part-of: --- src/backends/native/meta-keymap-native.c | 45 ++++++++++++++---------- src/backends/native/meta-keymap-native.h | 1 + src/backends/native/meta-seat-impl.c | 3 ++ 3 files changed, 31 insertions(+), 18 deletions(-) diff --git a/src/backends/native/meta-keymap-native.c b/src/backends/native/meta-keymap-native.c index d19903532..ee56443b5 100644 --- a/src/backends/native/meta-keymap-native.c +++ b/src/backends/native/meta-keymap-native.c @@ -36,6 +36,8 @@ struct _MetaKeymapNative ClutterKeymap parent_instance; struct xkb_keymap *keymap; + gboolean num_lock; + gboolean caps_lock; }; G_DEFINE_TYPE (MetaKeymapNative, meta_keymap_native, @@ -54,31 +56,17 @@ meta_keymap_native_finalize (GObject *object) static gboolean meta_keymap_native_get_num_lock_state (ClutterKeymap *keymap) { - struct xkb_state *xkb_state; - ClutterSeat *seat; + MetaKeymapNative *keymap_native = META_KEYMAP_NATIVE (keymap); - seat = clutter_backend_get_default_seat (clutter_get_default_backend ()); - xkb_state = meta_seat_impl_get_xkb_state (META_SEAT_NATIVE (seat)->impl); - - return xkb_state_mod_name_is_active (xkb_state, - XKB_MOD_NAME_NUM, - XKB_STATE_MODS_LATCHED | - XKB_STATE_MODS_LOCKED); + return keymap_native->num_lock; } static gboolean meta_keymap_native_get_caps_lock_state (ClutterKeymap *keymap) { - struct xkb_state *xkb_state; - ClutterSeat *seat; + MetaKeymapNative *keymap_native = META_KEYMAP_NATIVE (keymap); - seat = clutter_backend_get_default_seat (clutter_get_default_backend ()); - xkb_state = meta_seat_impl_get_xkb_state (META_SEAT_NATIVE (seat)->impl); - - return xkb_state_mod_name_is_active (xkb_state, - XKB_MOD_NAME_CAPS, - XKB_STATE_MODS_LATCHED | - XKB_STATE_MODS_LOCKED); + return keymap_native->caps_lock; } static PangoDirection @@ -134,3 +122,24 @@ meta_keymap_native_get_keyboard_map (MetaKeymapNative *keymap) { return keymap->keymap; } + +void +meta_keymap_native_update (MetaKeymapNative *keymap) +{ + struct xkb_state *xkb_state; + ClutterSeat *seat; + + seat = clutter_backend_get_default_seat (clutter_get_default_backend ()); + xkb_state = meta_seat_impl_get_xkb_state (META_SEAT_NATIVE (seat)->impl); + + keymap->num_lock = + xkb_state_mod_name_is_active (xkb_state, + XKB_MOD_NAME_NUM, + XKB_STATE_MODS_LATCHED | + XKB_STATE_MODS_LOCKED); + keymap->caps_lock = + xkb_state_mod_name_is_active (xkb_state, + XKB_MOD_NAME_CAPS, + XKB_STATE_MODS_LATCHED | + XKB_STATE_MODS_LOCKED); +} diff --git a/src/backends/native/meta-keymap-native.h b/src/backends/native/meta-keymap-native.h index 27364984c..8b276df5d 100644 --- a/src/backends/native/meta-keymap-native.h +++ b/src/backends/native/meta-keymap-native.h @@ -32,5 +32,6 @@ G_DECLARE_FINAL_TYPE (MetaKeymapNative, meta_keymap_native, void meta_keymap_native_set_keyboard_map (MetaKeymapNative *keymap, struct xkb_keymap *xkb_keymap); struct xkb_keymap * meta_keymap_native_get_keyboard_map (MetaKeymapNative *keymap); +void meta_keymap_native_update (MetaKeymapNative *keymap); #endif /* META_KEYMAP_NATIVE_H */ diff --git a/src/backends/native/meta-seat-impl.c b/src/backends/native/meta-seat-impl.c index 323222312..d7cdd8243 100644 --- a/src/backends/native/meta-seat-impl.c +++ b/src/backends/native/meta-seat-impl.c @@ -2855,6 +2855,7 @@ meta_seat_impl_update_xkb_state (MetaSeatImpl *seat_impl) xkb_keymap_led_get_index (xkb_keymap, XKB_LED_NAME_SCROLL); meta_seat_impl_sync_leds (seat_impl); + meta_keymap_native_update (seat_impl->keymap); g_rw_lock_writer_unlock (&seat_impl->state_lock); } @@ -2981,6 +2982,7 @@ meta_seat_impl_set_keyboard_layout_index (MetaSeatImpl *seat_impl, locked_mods = xkb_state_serialize_mods (state, XKB_STATE_MODS_LOCKED); xkb_state_update_mask (state, depressed_mods, latched_mods, locked_mods, 0, 0, idx); + meta_keymap_native_update (seat_impl->keymap); seat_impl->layout_idx = idx; @@ -3046,6 +3048,7 @@ meta_seat_impl_set_keyboard_numlock (MetaSeatImpl *seat_impl, group_mods); meta_seat_impl_sync_leds (seat_impl); + meta_keymap_native_update (seat_impl->keymap); g_rw_lock_writer_unlock (&seat_impl->state_lock); }