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dbus

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IoI_xD 2026-04-15 16:12:38 -07:00
commit 54fed150e8
8 changed files with 223 additions and 143 deletions
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37
include/Mw/LowLevel.h
View file

@ -56,6 +56,43 @@ struct _MwLLCommonPixmap {
void* user;
};
#ifdef USE_DBUS
typedef struct _MwLLDBusFuncTable {
void* lib;
void (*dbus_error_init)(DBusError* error);
DBusConnection* (*dbus_bus_get)(DBusBusType type, DBusError* error);
dbus_bool_t (*dbus_error_is_set)(const DBusError* error);
void (*dbus_error_free)(DBusError* error);
DBusMessage* (*dbus_message_new_method_call)(const char* bus_name, const char* path, const char* iface, const char* method);
void (*dbus_message_iter_init_append)(DBusMessage* message, DBusMessageIter* iter);
dbus_bool_t (*dbus_message_iter_append_basic)(DBusMessageIter* iter, int type, const void* value);
DBusMessage* (*dbus_connection_send_with_reply_and_block)(DBusConnection* connection, DBusMessage* message, int timeout_milliseconds, DBusError* error);
void (*dbus_message_unref)(DBusMessage* message);
dbus_bool_t (*dbus_message_iter_init)(DBusMessage* message, DBusMessageIter* iter);
int (*dbus_message_iter_get_arg_type)(DBusMessageIter* iter);
void (*dbus_message_iter_recurse)(DBusMessageIter* iter, DBusMessageIter* sub);
void (*dbus_connection_unref)(DBusConnection* connection);
void (*dbus_message_iter_get_basic)(DBusMessageIter* iter, void* value);
} MwLLDBusFuncTable;
typedef struct _MwLLDBusContext {
DBusConnection* dbus_conn;
DBusError dbus_err;
DBusMessage* dbus_msg;
DBusMessage* dbus_reply;
DBusMessageIter dbus_args, dbus_variant, dbus_inner_variant;
} MwLLDBusContext;
/* setup the dbus func table. Returns false and prints a warning if dbus couldn't be found. */
MWDECL MwBool MwLLDBusFuncSetup(MwLLDBusFuncTable* tbl);
MWDECL MwBool MwLLDBusNewContext(MwLLDBusFuncTable* tbl, MwLLDBusContext* ctx);
MWDECL MwBool MwLLDBusPortalGet(MwLLDBusFuncTable* tbl, MwLLDBusContext* ctx, const char* portal, const char* namespace, const char* key, void* out);
MWDECL void MwLLDBusFreeContext(MwLLDBusFuncTable* tbl, MwLLDBusContext* ctx);
#endif
#ifdef _MILSKO
#ifdef USE_X11
#include <Mw/LowLevel/X11.h>

63
include/Mw/LowLevel/Wayland.h
View file

@ -36,7 +36,10 @@ typedef struct wayland_call_table {
void* lib;
void* xkb_lib;
void* cairo_lib;
void* dbus_lib;
#ifdef USE_DBUS
MwLLDBusFuncTable dbus;
MwBool has_dbus;
#endif
int (*wl_display_dispatch_pending)(struct wl_display* display);
void (*wl_display_disconnect)(struct wl_display* display);
@ -125,21 +128,6 @@ typedef struct wayland_call_table {
void (*cairo_set_antialias)(cairo_t*, cairo_antialias_t);
void (*cairo_set_operator)(cairo_t* cr, cairo_operator_t op);
void (*dbus_error_init)(DBusError* error);
DBusConnection* (*dbus_bus_get)(DBusBusType type, DBusError* error);
dbus_bool_t (*dbus_error_is_set)(const DBusError* error);
void (*dbus_error_free)(DBusError* error);
DBusMessage* (*dbus_message_new_method_call)(const char* bus_name, const char* path, const char* iface, const char* method);
void (*dbus_message_iter_init_append)(DBusMessage* message, DBusMessageIter* iter);
dbus_bool_t (*dbus_message_iter_append_basic)(DBusMessageIter* iter, int type, const void* value);
DBusMessage* (*dbus_connection_send_with_reply_and_block)(DBusConnection* connection, DBusMessage* message, int timeout_milliseconds, DBusError* error);
void (*dbus_message_unref)(DBusMessage* message);
dbus_bool_t (*dbus_message_iter_init)(DBusMessage* message, DBusMessageIter* iter);
int (*dbus_message_iter_get_arg_type)(DBusMessageIter* iter);
void (*dbus_message_iter_recurse)(DBusMessageIter* iter, DBusMessageIter* sub);
void (*dbus_connection_unref)(DBusConnection* connection);
void (*dbus_message_iter_get_basic)(DBusMessageIter* iter, void* value);
} wayland_call_table_t;
extern wayland_call_table_t wl_call_tbl;
@ -240,34 +228,9 @@ MwInline int wayland_load_funcs() {
CAIRO_FUNC(cairo_pattern_set_filter);
#undef CAIRO_FUNC
wl_call_tbl.dbus_lib = MwDynamicOpen("libdbus-1.so");
if(!wl_call_tbl.dbus_lib) {
fprintf(stderr, "[WARNING] Will not be able to detect dark theme: dbus library (libdbus-1.so) not found.\n");
return 0;
}
#define DBUS_FUNC(x) \
wl_call_tbl.x = MwDynamicSymbol(wl_call_tbl.dbus_lib, #x); \
if(!wl_call_tbl.x) { \
fprintf(stderr, "[WARNING] Will not be able to detect dark theme: dbus function %s not found.\n", #x); \
dlclose(wl_call_tbl.dbus_lib); \
return 0; \
}
DBUS_FUNC(dbus_error_init);
DBUS_FUNC(dbus_bus_get);
DBUS_FUNC(dbus_error_is_set);
DBUS_FUNC(dbus_error_free);
DBUS_FUNC(dbus_message_new_method_call);
DBUS_FUNC(dbus_message_iter_init_append);
DBUS_FUNC(dbus_message_iter_append_basic);
DBUS_FUNC(dbus_connection_send_with_reply_and_block);
DBUS_FUNC(dbus_message_unref);
DBUS_FUNC(dbus_message_iter_init);
DBUS_FUNC(dbus_message_iter_get_arg_type);
DBUS_FUNC(dbus_message_iter_recurse);
DBUS_FUNC(dbus_connection_unref);
DBUS_FUNC(dbus_message_iter_get_basic);
#ifdef USE_DBUS
wl_call_tbl.has_dbus = MwLLDBusFuncSetup(&wl_call_tbl.dbus);
#endif
return 0;
}
@ -480,13 +443,11 @@ struct _MwLLWayland {
struct zwp_locked_pointer_v1* locked_pointer;
MwBool pointer_constrained;
MwBool dark_theme_detection;
time_t dbus_timer;
DBusConnection* dbus_conn;
DBusError dbus_err;
DBusMessage* dbus_msg;
DBusMessage* dbus_reply;
DBusMessageIter dbus_args, dbus_variant, dbus_inner_variant;
#ifdef USE_DBUS
MwLLDBusContext dbus;
#endif
MwBool dark_theme_detection;
/* clipboard related stuff.
* Note that unlike most interfaces, we don't keep zwp_primary_selection stuff in a wayland_protocol_t because we use wl_data_device as a fallback and want to have it share memory space.*/

6
include/Mw/LowLevel/X11.h
View file

@ -57,6 +57,12 @@ struct _MwLLX11 {
unsigned long blue_mask;
unsigned long blue_max;
unsigned long blue_shift;
#ifdef USE_DBUS
MwLLDBusContext dbus;
#endif
MwBool dark_theme_detection;
};
struct _MwLLX11Color {

4
include/Mw/MachDep.h
View file

@ -53,6 +53,10 @@
#include <mach/mach.h>
#endif
#ifdef USE_DBUS
#include <dbus/dbus.h>
#endif
#ifndef M_PI
#define M_PI 3.14159265
#endif

2
pl/ostype/Linux.pl
View file

@ -7,6 +7,8 @@ if (param_get("x11")) {
push(@enabled_backends, "x11");
}
add_cflags("-DUSE_DBUS");
use_backend(@enabled_backends);
1;

100
src/backend/wayland.c
View file

@ -1830,102 +1830,16 @@ static void widget_setup(MwLL r, MwLL parent, int x, int y, int width, int heigh
}
}
static void dbus_setup(MwLL handle) {
MwU32 value = 0;
int translated_value = 0;
if(!wl_call_tbl.dbus_lib) {
return;
}
time(&handle->wayland.dbus_timer);
wl_call_tbl.dbus_error_init(&handle->wayland.dbus_err);
handle->wayland.dbus_conn = wl_call_tbl.dbus_bus_get(0 /* DBUS_BUS_SESSION */, &handle->wayland.dbus_err);
if(wl_call_tbl.dbus_error_is_set(&handle->wayland.dbus_err)) {
fprintf(stderr, "[WARNING] Could not detect dark theme: Connection error: %s\n", handle->wayland.dbus_err.message);
wl_call_tbl.dbus_error_free(&handle->wayland.dbus_err);
return;
}
if(!handle->wayland.dbus_conn) {
fprintf(stderr, "[WARNING] Could not detect dark theme: Failed to connect to session bus\n");
return;
}
}
static void dbus_get(MwLL handle, const char* portal, const char* namespace, const char* key, void* out) {
if(!handle->wayland.dbus_conn) {
return;
}
handle->wayland.dbus_msg = wl_call_tbl.dbus_message_new_method_call(
"org.freedesktop.portal.Desktop",
"/org/freedesktop/portal/desktop",
portal,
"Read");
if(!handle->wayland.dbus_msg) {
fprintf(stderr, "[WARNING] Couldn't get %s::%s: Failed to create message\n", namespace, key);
return;
}
wl_call_tbl.dbus_message_iter_init_append(handle->wayland.dbus_msg, &handle->wayland.dbus_args);
wl_call_tbl.dbus_message_iter_append_basic(&handle->wayland.dbus_args, 's', &namespace);
wl_call_tbl.dbus_message_iter_append_basic(&handle->wayland.dbus_args, 's', &key);
handle->wayland.dbus_reply = wl_call_tbl.dbus_connection_send_with_reply_and_block(handle->wayland.dbus_conn, handle->wayland.dbus_msg, 100, &handle->wayland.dbus_err);
if(wl_call_tbl.dbus_error_is_set(&handle->wayland.dbus_err)) {
fprintf(stderr, "[WARNING] Couldn't get %s::%s: Send error: %s\n", namespace, key, handle->wayland.dbus_err.message);
wl_call_tbl.dbus_error_free(&handle->wayland.dbus_err);
return;
}
if(!handle->wayland.dbus_reply) {
fprintf(stderr, "[WARNING] Couldn't get %s::%s: No reply received\n", namespace, key);
return;
}
if(!wl_call_tbl.dbus_message_iter_init(handle->wayland.dbus_reply, &handle->wayland.dbus_args)) {
fprintf(stderr, "[WARNING] Couldn't get %s::%s: Reply has no arguments\n", namespace, key);
wl_call_tbl.dbus_message_unref(handle->wayland.dbus_reply);
return;
}
if(wl_call_tbl.dbus_message_iter_get_arg_type(&handle->wayland.dbus_args) != 'v') {
fprintf(stderr, "[WARNING] Couldn't get %s::%s: Expected outer variant\n", namespace, key);
wl_call_tbl.dbus_message_unref(handle->wayland.dbus_reply);
return;
}
wl_call_tbl.dbus_message_iter_recurse(&handle->wayland.dbus_args, &handle->wayland.dbus_variant);
/* Some portals wrap the value in a second variant */
if(wl_call_tbl.dbus_message_iter_get_arg_type(&handle->wayland.dbus_variant) == 'v') {
wl_call_tbl.dbus_message_iter_recurse(&handle->wayland.dbus_variant, &handle->wayland.dbus_inner_variant);
wl_call_tbl.dbus_message_iter_get_basic(&handle->wayland.dbus_inner_variant, out);
} else {
wl_call_tbl.dbus_message_iter_get_basic(&handle->wayland.dbus_variant, out);
}
wl_call_tbl.dbus_message_unref(handle->wayland.dbus_msg);
}
static void detect_dark_theme(MwLL handle) {
MwU32 value = 0;
MwU32 dark_theme = 0;
dbus_get(handle, "org.freedesktop.portal.Settings", "org.freedesktop.appearance", "color-scheme", &value);
MwLLDBusPortalGet(&wl_call_tbl.dbus, &handle->wayland.dbus, "org.freedesktop.portal.Settings", "org.freedesktop.appearance", "color-scheme", &value);
dark_theme = (value == 1) ? 1 : 0;
MwLLDispatch(handle, dark_theme, &dark_theme);
}
static void dbus_destroy(MwLL handle) {
if(!wl_call_tbl.dbus_lib) {
return;
}
if(handle->wayland.dbus_reply) wl_call_tbl.dbus_message_unref(handle->wayland.dbus_reply);
if(handle->wayland.dbus_conn) wl_call_tbl.dbus_connection_unref(handle->wayland.dbus_conn);
}
static MwLL MwLLCreateImpl(MwLL parent, int x, int y, int width, int height) {
MwLL r;
r = malloc(sizeof(*r));
@ -1934,10 +1848,12 @@ static MwLL MwLLCreateImpl(MwLL parent, int x, int y, int width, int height) {
widget_setup(r, parent, x, y, width, height, MWLL_WAYLAND_UNKNOWN);
if(!parent) {
dbus_setup(r);
#ifdef USE_DBUS
if(!parent && wl_call_tbl.has_dbus) {
wl_call_tbl.has_dbus = MwLLDBusNewContext(&wl_call_tbl.dbus, &r->wayland.dbus);
r->wayland.dark_theme_detection = MwTRUE;
}
#endif
return r;
}
@ -1973,8 +1889,8 @@ static void MwLLDestroyImpl(MwLL handle) {
pthread_mutex_unlock(&handle->wayland.eventsMutex);
pthread_mutex_destroy(&handle->wayland.eventsMutex);
if(!handle->wayland.dbus_conn) {
dbus_destroy(handle);
if(!wl_call_tbl.has_dbus) {
MwLLDBusFreeContext(&wl_call_tbl.dbus, &handle->wayland.dbus);
}
buffer_destroy(&handle->wayland.cursor);
@ -2258,7 +2174,7 @@ static int MwLLPendingImpl(MwLL handle) {
int pending = 0;
if(handle->wayland.dark_theme_detection) {
if(handle->wayland.dbus_conn) {
if(wl_call_tbl.has_dbus) {
detect_dark_theme(handle);
handle->wayland.dark_theme_detection = MwFALSE;
MwLLDispatch(handle, draw, NULL);

35
src/backend/x11.c
View file

@ -9,6 +9,9 @@ static struct {
void* lib_xrender;
MwBool has_xrender;
MwLLDBusFuncTable dbus;
MwBool has_dbus;
int (*XClearWindow)(Display* display, Window w);
XImage* (*XCreateImage)(Display*, Visual*, unsigned int, int, int, char*, unsigned int, unsigned int, int, int);
Display* (*XOpenDisplay)(_Xconst char*);
@ -308,6 +311,16 @@ static XVisualInfo* get_visual_info(Display* display) {
return XGetVisualInfo(display, VisualIDMask, &xvi, &n);
}
static void detect_dark_theme(MwLL handle) {
MwU32 value = 0;
MwU32 dark_theme = 0;
MwLLDBusPortalGet(&xsymtbl.dbus, &handle->x11.dbus, "org.freedesktop.portal.Settings", "org.freedesktop.appearance", "color-scheme", &value);
dark_theme = (value == 1) ? 1 : 0;
MwLLDispatch(handle, dark_theme, &dark_theme);
}
static MwLL MwLLCreateImpl(MwLL parent, int x, int y, int width, int height) {
MwLL r;
Window p;
@ -429,6 +442,14 @@ static MwLL MwLLCreateImpl(MwLL parent, int x, int y, int width, int height) {
}
}
#ifdef USE_DBUS
memset(&r->x11.dbus, 0, sizeof(r->x11.dbus));
if(!parent && xsymtbl.has_dbus) {
xsymtbl.has_dbus = MwLLDBusNewContext(&xsymtbl.dbus, &r->x11.dbus);
r->x11.dark_theme_detection = MwTRUE;
}
#endif
return r;
}
@ -449,6 +470,10 @@ static void MwLLDestroyImpl(MwLL handle) {
if(handle->x11.toplevel) XCloseDisplay(handle->x11.display);
if(!xsymtbl.has_dbus) {
MwLLDBusFreeContext(&xsymtbl.dbus, &handle->x11.dbus);
}
free(handle);
}
@ -607,6 +632,14 @@ static void MwLLFreeColorImpl(MwLLColor color) {
static int MwLLPendingImpl(MwLL handle) {
XEvent ev;
if(handle->x11.dark_theme_detection) {
if(xsymtbl.has_dbus) {
detect_dark_theme(handle);
handle->x11.dark_theme_detection = MwFALSE;
MwLLDispatch(handle, draw, NULL);
}
}
if(handle->x11.clipboard_pending && (MwTimeGetTick() - handle->x11.clipboard_time) >= ClipboardTimeout) {
return 1;
}
@ -1388,6 +1421,8 @@ static int MwLLX11CallInitImpl(void) {
XRENDER_FUNC_LOAD(XRenderSetPictureTransform)
XRENDER_FUNC_LOAD(XRenderComposite)
#endif
xsymtbl.has_dbus = MwLLDBusFuncSetup(&xsymtbl.dbus);
return 0;
}

119
src/lowlevel.c
View file

@ -61,3 +61,122 @@ void MwLLCreateCommon(MwLL handle) {
void MwLLDestroyCommon(MwLL handle) {
free(handle->common.handler);
}
#ifdef USE_DBUS
MwBool MwLLDBusFuncSetup(MwLLDBusFuncTable* tbl) {
tbl->lib = MwDynamicOpen("libdbus-1.so");
if(!tbl->lib) {
fprintf(stderr, "[WARNING] dbus library (libdbus-1.so) not found, will not be able to check for any XDG settings.\n");
return MwFALSE;
}
#define DBUS_FUNC(x) \
tbl->x = MwDynamicSymbol(tbl->lib, #x); \
if(!tbl->x) { \
fprintf(stderr, "[WARNING] dbus function %s not found, will not be able to check for any XDG settings.\n", #x); \
dlclose(tbl->lib); \
return MwFALSE; \
}
DBUS_FUNC(dbus_error_init);
DBUS_FUNC(dbus_bus_get);
DBUS_FUNC(dbus_error_is_set);
DBUS_FUNC(dbus_error_free);
DBUS_FUNC(dbus_message_new_method_call);
DBUS_FUNC(dbus_message_iter_init_append);
DBUS_FUNC(dbus_message_iter_append_basic);
DBUS_FUNC(dbus_connection_send_with_reply_and_block);
DBUS_FUNC(dbus_message_unref);
DBUS_FUNC(dbus_message_iter_init);
DBUS_FUNC(dbus_message_iter_get_arg_type);
DBUS_FUNC(dbus_message_iter_recurse);
DBUS_FUNC(dbus_connection_unref);
DBUS_FUNC(dbus_message_iter_get_basic);
return MwTRUE;
}
#endif
MwBool MwLLDBusNewContext(MwLLDBusFuncTable* tbl, MwLLDBusContext* ctx) {
if(!tbl->lib) {
return MwFALSE;
}
tbl->dbus_error_init(&ctx->dbus_err);
ctx->dbus_conn = tbl->dbus_bus_get(DBUS_BUS_SESSION, &ctx->dbus_err);
if(tbl->dbus_error_is_set(&ctx->dbus_err)) {
fprintf(stderr, "[WARNING] Could not initialize dbus: Connection error: %s\n", ctx->dbus_err.message);
tbl->dbus_error_free(&ctx->dbus_err);
return MwFALSE;
}
if(!ctx->dbus_conn) {
fprintf(stderr, "[WARNING] Could not initialize dbus: Failed to connect to session bus\n");
return MwFALSE;
}
return MwTRUE;
};
MWDECL MwBool MwLLDBusPortalGet(MwLLDBusFuncTable* tbl, MwLLDBusContext* ctx, const char* portal, const char* namespace, const char* key, void* out) {
if(!ctx->dbus_conn) {
return MwFALSE;
}
ctx->dbus_msg = tbl->dbus_message_new_method_call(
"org.freedesktop.portal.Desktop",
"/org/freedesktop/portal/desktop",
portal,
"Read");
if(!ctx->dbus_msg) {
fprintf(stderr, "[WARNING] Couldn't get %s::%s: Failed to create message\n", namespace, key);
return MwFALSE;
}
tbl->dbus_message_iter_init_append(ctx->dbus_msg, &ctx->dbus_args);
tbl->dbus_message_iter_append_basic(&ctx->dbus_args, 's', &namespace);
tbl->dbus_message_iter_append_basic(&ctx->dbus_args, 's', &key);
ctx->dbus_reply = tbl->dbus_connection_send_with_reply_and_block(ctx->dbus_conn, ctx->dbus_msg, 100, &ctx->dbus_err);
if(tbl->dbus_error_is_set(&ctx->dbus_err)) {
fprintf(stderr, "[WARNING] Couldn't get %s::%s: Send error: %s\n", namespace, key, ctx->dbus_err.message);
tbl->dbus_error_free(&ctx->dbus_err);
return MwFALSE;
}
if(!ctx->dbus_reply) {
fprintf(stderr, "[WARNING] Couldn't get %s::%s: No reply received\n", namespace, key);
return MwFALSE;
}
if(!tbl->dbus_message_iter_init(ctx->dbus_reply, &ctx->dbus_args)) {
fprintf(stderr, "[WARNING] Couldn't get %s::%s: Reply has no arguments\n", namespace, key);
tbl->dbus_message_unref(ctx->dbus_reply);
return MwFALSE;
}
if(tbl->dbus_message_iter_get_arg_type(&ctx->dbus_args) != 'v') {
fprintf(stderr, "[WARNING] Couldn't get %s::%s: Expected outer variant\n", namespace, key);
tbl->dbus_message_unref(ctx->dbus_reply);
return MwFALSE;
}
tbl->dbus_message_iter_recurse(&ctx->dbus_args, &ctx->dbus_variant);
/* Some portals wrap the value in a second variant */
if(tbl->dbus_message_iter_get_arg_type(&ctx->dbus_variant) == 'v') {
tbl->dbus_message_iter_recurse(&ctx->dbus_variant, &ctx->dbus_inner_variant);
tbl->dbus_message_iter_get_basic(&ctx->dbus_inner_variant, out);
} else {
tbl->dbus_message_iter_get_basic(&ctx->dbus_variant, out);
}
tbl->dbus_message_unref(ctx->dbus_msg);
return MwTRUE;
}
void MwLLDBusFreeContext(MwLLDBusFuncTable* tbl, MwLLDBusContext* ctx) {
if(!tbl->lib) {
return;
}
if(ctx->dbus_reply) tbl->dbus_message_unref(ctx->dbus_reply);
if(ctx->dbus_conn) tbl->dbus_connection_unref(ctx->dbus_conn);
};