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auto detect dark theme change via dbus signals
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maelstrom 2026-04-16 23:05:41 +02:00 • committed by Nishi
commit 138555f41d
3 changed files with 86 additions and 7 deletions
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26
src/backend/wayland.c
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@ -17,6 +17,8 @@
wayland_call_table_t wl_call_tbl;
MwBool MwWaylandAlwaysRender = MwFALSE;
MwU32 wl_dark_theme = -1;
/* Standard procedure before most event callbacks in Wayland ("most" because the setup ones don't need this). Wait for the Mutex to be freed, if we're deadlocking for longer then a quarter of a second then do nothing with the event. */
#define WAYLAND_EVENT_OP_START(self) \
do { \
@ -1779,14 +1781,21 @@ static void widget_setup(MwLL r, MwLL parent, int x, int y, int width, int heigh
}
#ifdef USE_DBUS
static void dark_theme_listener(MwLL handle, MwU32 new_value) {
wl_dark_theme = (new_value == 1) ? 1 : 0;
MwLLDispatch(handle, dark_theme, &wl_dark_theme);
}
static void detect_dark_theme(MwLL handle) {
MwU32 value = 0;
MwU32 dark_theme = 0;
MwLLDBusPortalGet(&wl_call_tbl.dbus, &handle->wayland.dbus, "org.freedesktop.portal.Settings", "org.freedesktop.appearance", "color-scheme", &value);
wl_dark_theme = (value == 1) ? 1 : 0;
dark_theme = (value == 1) ? 1 : 0;
MwLLDBusPortalWatch(&wl_call_tbl.dbus, &handle->wayland.dbus, "org.freedesktop.portal.Settings");
MwLLDispatch(handle, dark_theme, &dark_theme);
MwLLDispatch(handle, dark_theme, &wl_dark_theme);
}
#endif
@ -2144,15 +2153,18 @@ static int MwLLPendingImpl(MwLL handle) {
};
int pending = 0;
if(handle->wayland.dark_theme_detection) {
handle->wayland.dark_theme_detection = MwFALSE;
#ifdef USE_DBUS
if(wl_call_tbl.has_dbus) {
if(wl_call_tbl.has_dbus) {
if(handle->wayland.dark_theme_detection) {
handle->wayland.dark_theme_detection = MwFALSE;
detect_dark_theme(handle);
MwLLDispatch(handle, draw, NULL);
} else {
MwLLDBusPortalPoll(&wl_call_tbl.dbus, &handle->wayland.dbus, handle, "org.freedesktop.portal.Settings", "org.freedesktop.appearance", "color-scheme", &dark_theme_listener);
}
#endif
}
#endif
if(!handle->wayland.did_initial_resize) {
recursive_dispatch_resize(handle);