1 | /* |
2 | Simple DirectMedia Layer |
3 | Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org> |
4 | |
5 | This software is provided 'as-is', without any express or implied |
6 | warranty. In no event will the authors be held liable for any damages |
7 | arising from the use of this software. |
8 | |
9 | Permission is granted to anyone to use this software for any purpose, |
10 | including commercial applications, and to alter it and redistribute it |
11 | freely, subject to the following restrictions: |
12 | |
13 | 1. The origin of this software must not be misrepresented; you must not |
14 | claim that you wrote the original software. If you use this software |
15 | in a product, an acknowledgment in the product documentation would be |
16 | appreciated but is not required. |
17 | 2. Altered source versions must be plainly marked as such, and must not be |
18 | misrepresented as being the original software. |
19 | 3. This notice may not be removed or altered from any source distribution. |
20 | */ |
21 | #include "SDL_internal.h" |
22 | #include "../SDL_dialog_utils.h" |
23 | |
24 | #include "../../core/linux/SDL_dbus.h" |
25 | |
26 | #ifdef SDL_USE_LIBDBUS |
27 | |
28 | #include <errno.h> |
29 | #include <sys/types.h> |
30 | #include <sys/wait.h> |
31 | #include <unistd.h> |
32 | |
33 | #define PORTAL_DESTINATION "org.freedesktop.portal.Desktop" |
34 | #define PORTAL_PATH "/org/freedesktop/portal/desktop" |
35 | #define PORTAL_INTERFACE "org.freedesktop.portal.FileChooser" |
36 | |
37 | #define SIGNAL_SENDER "org.freedesktop.portal.Desktop" |
38 | #define SIGNAL_INTERFACE "org.freedesktop.portal.Request" |
39 | #define SIGNAL_NAME "Response" |
40 | #define SIGNAL_FILTER "type='signal', sender='"SIGNAL_SENDER"', interface='"SIGNAL_INTERFACE"', member='"SIGNAL_NAME"', path='" |
41 | |
42 | #define HANDLE_LEN 10 |
43 | |
44 | #define WAYLAND_HANDLE_PREFIX "wayland:" |
45 | #define X11_HANDLE_PREFIX "x11:" |
46 | |
47 | typedef struct { |
48 | SDL_DialogFileCallback callback; |
49 | void *userdata; |
50 | const char *path; |
51 | } SignalCallback; |
52 | |
53 | static void DBus_AppendStringOption(SDL_DBusContext *dbus, DBusMessageIter *options, const char *key, const char *value) |
54 | { |
55 | DBusMessageIter options_pair, options_value; |
56 | |
57 | dbus->message_iter_open_container(options, DBUS_TYPE_DICT_ENTRY, NULL, &options_pair); |
58 | dbus->message_iter_append_basic(&options_pair, DBUS_TYPE_STRING, &key); |
59 | dbus->message_iter_open_container(&options_pair, DBUS_TYPE_VARIANT, "s" , &options_value); |
60 | dbus->message_iter_append_basic(&options_value, DBUS_TYPE_STRING, &value); |
61 | dbus->message_iter_close_container(&options_pair, &options_value); |
62 | dbus->message_iter_close_container(options, &options_pair); |
63 | } |
64 | |
65 | static void DBus_AppendBoolOption(SDL_DBusContext *dbus, DBusMessageIter *options, const char *key, int value) |
66 | { |
67 | DBusMessageIter options_pair, options_value; |
68 | |
69 | dbus->message_iter_open_container(options, DBUS_TYPE_DICT_ENTRY, NULL, &options_pair); |
70 | dbus->message_iter_append_basic(&options_pair, DBUS_TYPE_STRING, &key); |
71 | dbus->message_iter_open_container(&options_pair, DBUS_TYPE_VARIANT, "b" , &options_value); |
72 | dbus->message_iter_append_basic(&options_value, DBUS_TYPE_BOOLEAN, &value); |
73 | dbus->message_iter_close_container(&options_pair, &options_value); |
74 | dbus->message_iter_close_container(options, &options_pair); |
75 | } |
76 | |
77 | static void DBus_AppendFilter(SDL_DBusContext *dbus, DBusMessageIter *parent, const SDL_DialogFileFilter filter) |
78 | { |
79 | DBusMessageIter filter_entry, filter_array, filter_array_entry; |
80 | char *state = NULL, *patterns, *pattern, *glob_pattern; |
81 | int zero = 0; |
82 | |
83 | dbus->message_iter_open_container(parent, DBUS_TYPE_STRUCT, NULL, &filter_entry); |
84 | dbus->message_iter_append_basic(&filter_entry, DBUS_TYPE_STRING, &filter.name); |
85 | dbus->message_iter_open_container(&filter_entry, DBUS_TYPE_ARRAY, "(us)" , &filter_array); |
86 | |
87 | patterns = SDL_strdup(filter.pattern); |
88 | if (!patterns) { |
89 | goto cleanup; |
90 | } |
91 | |
92 | pattern = SDL_strtok_r(patterns, ";" , &state); |
93 | while (pattern) { |
94 | size_t max_len = SDL_strlen(pattern) + 3; |
95 | |
96 | dbus->message_iter_open_container(&filter_array, DBUS_TYPE_STRUCT, NULL, &filter_array_entry); |
97 | dbus->message_iter_append_basic(&filter_array_entry, DBUS_TYPE_UINT32, &zero); |
98 | |
99 | glob_pattern = SDL_calloc(max_len, sizeof(char)); |
100 | if (!glob_pattern) { |
101 | goto cleanup; |
102 | } |
103 | glob_pattern[0] = '*'; |
104 | /* Special case: The '*' filter doesn't need to be rewritten */ |
105 | if (pattern[0] != '*' || pattern[1]) { |
106 | glob_pattern[1] = '.'; |
107 | SDL_strlcat(glob_pattern + 2, pattern, max_len); |
108 | } |
109 | dbus->message_iter_append_basic(&filter_array_entry, DBUS_TYPE_STRING, &glob_pattern); |
110 | SDL_free(glob_pattern); |
111 | |
112 | dbus->message_iter_close_container(&filter_array, &filter_array_entry); |
113 | pattern = SDL_strtok_r(NULL, ";" , &state); |
114 | } |
115 | |
116 | cleanup: |
117 | SDL_free(patterns); |
118 | |
119 | dbus->message_iter_close_container(&filter_entry, &filter_array); |
120 | dbus->message_iter_close_container(parent, &filter_entry); |
121 | } |
122 | |
123 | static void DBus_AppendFilters(SDL_DBusContext *dbus, DBusMessageIter *options, const SDL_DialogFileFilter *filters, int nfilters) |
124 | { |
125 | DBusMessageIter options_pair, options_value, options_value_array; |
126 | static const char *filters_name = "filters" ; |
127 | |
128 | dbus->message_iter_open_container(options, DBUS_TYPE_DICT_ENTRY, NULL, &options_pair); |
129 | dbus->message_iter_append_basic(&options_pair, DBUS_TYPE_STRING, &filters_name); |
130 | dbus->message_iter_open_container(&options_pair, DBUS_TYPE_VARIANT, "a(sa(us))" , &options_value); |
131 | dbus->message_iter_open_container(&options_value, DBUS_TYPE_ARRAY, "(sa(us))" , &options_value_array); |
132 | for (int i = 0; i < nfilters; i++) { |
133 | DBus_AppendFilter(dbus, &options_value_array, filters[i]); |
134 | } |
135 | dbus->message_iter_close_container(&options_value, &options_value_array); |
136 | dbus->message_iter_close_container(&options_pair, &options_value); |
137 | dbus->message_iter_close_container(options, &options_pair); |
138 | } |
139 | |
140 | static void DBus_AppendByteArray(SDL_DBusContext *dbus, DBusMessageIter *options, const char *key, const char *value) |
141 | { |
142 | DBusMessageIter options_pair, options_value, options_array; |
143 | |
144 | dbus->message_iter_open_container(options, DBUS_TYPE_DICT_ENTRY, NULL, &options_pair); |
145 | dbus->message_iter_append_basic(&options_pair, DBUS_TYPE_STRING, &key); |
146 | dbus->message_iter_open_container(&options_pair, DBUS_TYPE_VARIANT, "ay" , &options_value); |
147 | dbus->message_iter_open_container(&options_value, DBUS_TYPE_ARRAY, "y" , &options_array); |
148 | do { |
149 | dbus->message_iter_append_basic(&options_array, DBUS_TYPE_BYTE, value); |
150 | } while (*value++); |
151 | dbus->message_iter_close_container(&options_value, &options_array); |
152 | dbus->message_iter_close_container(&options_pair, &options_value); |
153 | dbus->message_iter_close_container(options, &options_pair); |
154 | } |
155 | |
156 | static DBusHandlerResult DBus_MessageFilter(DBusConnection *conn, DBusMessage *msg, void *data) |
157 | { |
158 | SDL_DBusContext *dbus = SDL_DBus_GetContext(); |
159 | SignalCallback *signal_data = (SignalCallback *)data; |
160 | |
161 | if (dbus->message_is_signal(msg, SIGNAL_INTERFACE, SIGNAL_NAME) && |
162 | dbus->message_has_path(msg, signal_data->path)) { |
163 | DBusMessageIter signal_iter, result_array, array_entry, value_entry, uri_entry; |
164 | uint32_t result; |
165 | size_t length = 2, current = 0; |
166 | const char **path = NULL; |
167 | |
168 | dbus->message_iter_init(msg, &signal_iter); |
169 | // Check if the parameters are what we expect |
170 | if (dbus->message_iter_get_arg_type(&signal_iter) != DBUS_TYPE_UINT32) { |
171 | goto not_our_signal; |
172 | } |
173 | dbus->message_iter_get_basic(&signal_iter, &result); |
174 | |
175 | if (result == 1 || result == 2) { |
176 | // cancelled |
177 | const char *result_data[] = { NULL }; |
178 | signal_data->callback(signal_data->userdata, result_data, -1); // TODO: Set this to the last selected filter |
179 | goto done; |
180 | |
181 | } else if (result) { |
182 | // some error occurred |
183 | signal_data->callback(signal_data->userdata, NULL, -1); |
184 | goto done; |
185 | } |
186 | |
187 | if (!dbus->message_iter_next(&signal_iter)) { |
188 | goto not_our_signal; |
189 | } |
190 | |
191 | if (dbus->message_iter_get_arg_type(&signal_iter) != DBUS_TYPE_ARRAY) { |
192 | goto not_our_signal; |
193 | } |
194 | |
195 | dbus->message_iter_recurse(&signal_iter, &result_array); |
196 | |
197 | while (dbus->message_iter_get_arg_type(&result_array) == DBUS_TYPE_DICT_ENTRY) { |
198 | const char *method; |
199 | |
200 | dbus->message_iter_recurse(&result_array, &array_entry); |
201 | if (dbus->message_iter_get_arg_type(&array_entry) != DBUS_TYPE_STRING) { |
202 | goto not_our_signal; |
203 | } |
204 | |
205 | dbus->message_iter_get_basic(&array_entry, &method); |
206 | if (!SDL_strcmp(method, "uris" )) { |
207 | // we only care about the selected file paths |
208 | break; |
209 | } |
210 | |
211 | if (!dbus->message_iter_next(&result_array)) { |
212 | goto not_our_signal; |
213 | } |
214 | } |
215 | |
216 | if (!dbus->message_iter_next(&array_entry)) { |
217 | goto not_our_signal; |
218 | } |
219 | |
220 | if (dbus->message_iter_get_arg_type(&array_entry) != DBUS_TYPE_VARIANT) { |
221 | goto not_our_signal; |
222 | } |
223 | dbus->message_iter_recurse(&array_entry, &value_entry); |
224 | |
225 | if (dbus->message_iter_get_arg_type(&value_entry) != DBUS_TYPE_ARRAY) { |
226 | goto not_our_signal; |
227 | } |
228 | dbus->message_iter_recurse(&value_entry, &uri_entry); |
229 | |
230 | path = SDL_malloc(length * sizeof(const char *)); |
231 | if (!path) { |
232 | signal_data->callback(signal_data->userdata, NULL, -1); |
233 | goto done; |
234 | } |
235 | |
236 | while (dbus->message_iter_get_arg_type(&uri_entry) == DBUS_TYPE_STRING) { |
237 | const char *uri = NULL; |
238 | |
239 | if (current >= length - 1) { |
240 | ++length; |
241 | const char **newpath = SDL_realloc(path, length * sizeof(const char *)); |
242 | if (!newpath) { |
243 | signal_data->callback(signal_data->userdata, NULL, -1); |
244 | goto done; |
245 | } |
246 | path = newpath; |
247 | } |
248 | |
249 | dbus->message_iter_get_basic(&uri_entry, &uri); |
250 | |
251 | // https://flatpak.github.io/xdg-desktop-portal/docs/doc-org.freedesktop.portal.FileChooser.html |
252 | // Returned paths will always start with 'file://'; SDL_URIToLocal() truncates it. |
253 | char *decoded_uri = SDL_malloc(SDL_strlen(uri) + 1); |
254 | if (SDL_URIToLocal(uri, decoded_uri)) { |
255 | path[current] = decoded_uri; |
256 | } else { |
257 | SDL_free(decoded_uri); |
258 | SDL_SetError("Portal dialogs: Unsupported protocol: %s" , uri); |
259 | signal_data->callback(signal_data->userdata, NULL, -1); |
260 | goto done; |
261 | } |
262 | |
263 | dbus->message_iter_next(&uri_entry); |
264 | ++current; |
265 | } |
266 | path[current] = NULL; |
267 | signal_data->callback(signal_data->userdata, path, -1); // TODO: Fetch the index of the filter that was used |
268 | done: |
269 | dbus->connection_remove_filter(conn, &DBus_MessageFilter, signal_data); |
270 | |
271 | if (path) { |
272 | for (size_t i = 0; i < current; ++i) { |
273 | SDL_free((char *)path[i]); |
274 | } |
275 | SDL_free(path); |
276 | } |
277 | SDL_free((void *)signal_data->path); |
278 | SDL_free(signal_data); |
279 | return DBUS_HANDLER_RESULT_HANDLED; |
280 | } |
281 | |
282 | not_our_signal: |
283 | return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; |
284 | } |
285 | |
286 | void SDL_Portal_ShowFileDialogWithProperties(SDL_FileDialogType type, SDL_DialogFileCallback callback, void *userdata, SDL_PropertiesID props) |
287 | { |
288 | const char *method; |
289 | const char *method_title; |
290 | |
291 | SDL_Window* window = SDL_GetPointerProperty(props, SDL_PROP_FILE_DIALOG_WINDOW_POINTER, NULL); |
292 | SDL_DialogFileFilter *filters = SDL_GetPointerProperty(props, SDL_PROP_FILE_DIALOG_FILTERS_POINTER, NULL); |
293 | int nfilters = (int) SDL_GetNumberProperty(props, SDL_PROP_FILE_DIALOG_NFILTERS_NUMBER, 0); |
294 | bool allow_many = SDL_GetBooleanProperty(props, SDL_PROP_FILE_DIALOG_MANY_BOOLEAN, false); |
295 | const char* default_location = SDL_GetStringProperty(props, SDL_PROP_FILE_DIALOG_LOCATION_STRING, NULL); |
296 | const char* accept = SDL_GetStringProperty(props, SDL_PROP_FILE_DIALOG_ACCEPT_STRING, NULL); |
297 | bool open_folders = false; |
298 | |
299 | switch (type) { |
300 | case SDL_FILEDIALOG_OPENFILE: |
301 | method = "OpenFile" ; |
302 | method_title = SDL_GetStringProperty(props, SDL_PROP_FILE_DIALOG_TITLE_STRING, "Open File" ); |
303 | break; |
304 | |
305 | case SDL_FILEDIALOG_SAVEFILE: |
306 | method = "SaveFile" ; |
307 | method_title = SDL_GetStringProperty(props, SDL_PROP_FILE_DIALOG_TITLE_STRING, "Save File" ); |
308 | break; |
309 | |
310 | case SDL_FILEDIALOG_OPENFOLDER: |
311 | method = "OpenFile" ; |
312 | method_title = SDL_GetStringProperty(props, SDL_PROP_FILE_DIALOG_TITLE_STRING, "Open Folder" ); |
313 | open_folders = true; |
314 | break; |
315 | |
316 | default: |
317 | /* This is already checked in ../SDL_dialog.c; this silences compiler warnings */ |
318 | SDL_SetError("Invalid file dialog type: %d" , type); |
319 | callback(userdata, NULL, -1); |
320 | return; |
321 | } |
322 | |
323 | SDL_DBusContext *dbus = SDL_DBus_GetContext(); |
324 | DBusMessage *msg; |
325 | DBusMessageIter params, options; |
326 | const char *signal_id = NULL; |
327 | char *handle_str, *filter; |
328 | int filter_len; |
329 | static uint32_t handle_id = 0; |
330 | static char *default_parent_window = "" ; |
331 | SDL_PropertiesID window_props = SDL_GetWindowProperties(window); |
332 | |
333 | const char *err_msg = validate_filters(filters, nfilters); |
334 | |
335 | if (err_msg) { |
336 | SDL_SetError("%s" , err_msg); |
337 | callback(userdata, NULL, -1); |
338 | return; |
339 | } |
340 | |
341 | if (dbus == NULL) { |
342 | SDL_SetError("Failed to connect to DBus" ); |
343 | callback(userdata, NULL, -1); |
344 | return; |
345 | } |
346 | |
347 | msg = dbus->message_new_method_call(PORTAL_DESTINATION, PORTAL_PATH, PORTAL_INTERFACE, method); |
348 | if (msg == NULL) { |
349 | SDL_SetError("Failed to send message to portal" ); |
350 | callback(userdata, NULL, -1); |
351 | return; |
352 | } |
353 | |
354 | dbus->message_iter_init_append(msg, ¶ms); |
355 | |
356 | handle_str = default_parent_window; |
357 | if (window_props) { |
358 | const char *parent_handle = SDL_GetStringProperty(window_props, SDL_PROP_WINDOW_WAYLAND_XDG_TOPLEVEL_EXPORT_HANDLE_STRING, NULL); |
359 | if (parent_handle) { |
360 | size_t len = SDL_strlen(parent_handle); |
361 | len += sizeof(WAYLAND_HANDLE_PREFIX) + 1; |
362 | handle_str = SDL_malloc(len * sizeof(char)); |
363 | if (!handle_str) { |
364 | callback(userdata, NULL, -1); |
365 | return; |
366 | } |
367 | |
368 | SDL_snprintf(handle_str, len, "%s%s" , WAYLAND_HANDLE_PREFIX, parent_handle); |
369 | } else { |
370 | const Uint64 xid = (Uint64)SDL_GetNumberProperty(window_props, SDL_PROP_WINDOW_X11_WINDOW_NUMBER, 0); |
371 | if (xid) { |
372 | const size_t len = sizeof(X11_HANDLE_PREFIX) + 24; // A 64-bit number can be 20 characters max. |
373 | handle_str = SDL_malloc(len * sizeof(char)); |
374 | if (!handle_str) { |
375 | callback(userdata, NULL, -1); |
376 | return; |
377 | } |
378 | |
379 | // The portal wants X11 window ID numbers in hex. |
380 | SDL_snprintf(handle_str, len, "%s%" SDL_PRIx64, X11_HANDLE_PREFIX, xid); |
381 | } |
382 | } |
383 | } |
384 | |
385 | dbus->message_iter_append_basic(¶ms, DBUS_TYPE_STRING, &handle_str); |
386 | if (handle_str != default_parent_window) { |
387 | SDL_free(handle_str); |
388 | } |
389 | |
390 | dbus->message_iter_append_basic(¶ms, DBUS_TYPE_STRING, &method_title); |
391 | dbus->message_iter_open_container(¶ms, DBUS_TYPE_ARRAY, "{sv}" , &options); |
392 | |
393 | handle_str = SDL_malloc(sizeof(char) * (HANDLE_LEN + 1)); |
394 | if (!handle_str) { |
395 | callback(userdata, NULL, -1); |
396 | return; |
397 | } |
398 | SDL_snprintf(handle_str, HANDLE_LEN, "%u" , ++handle_id); |
399 | DBus_AppendStringOption(dbus, &options, "handle_token" , handle_str); |
400 | SDL_free(handle_str); |
401 | |
402 | DBus_AppendBoolOption(dbus, &options, "modal" , !!window); |
403 | if (allow_many) { |
404 | DBus_AppendBoolOption(dbus, &options, "multiple" , 1); |
405 | } |
406 | if (open_folders) { |
407 | DBus_AppendBoolOption(dbus, &options, "directory" , 1); |
408 | } |
409 | if (filters) { |
410 | DBus_AppendFilters(dbus, &options, filters, nfilters); |
411 | } |
412 | if (default_location) { |
413 | DBus_AppendByteArray(dbus, &options, "current_folder" , default_location); |
414 | } |
415 | if (accept) { |
416 | DBus_AppendStringOption(dbus, &options, "accept_label" , accept); |
417 | } |
418 | dbus->message_iter_close_container(¶ms, &options); |
419 | |
420 | DBusMessage *reply = dbus->connection_send_with_reply_and_block(dbus->session_conn, msg, DBUS_TIMEOUT_INFINITE, NULL); |
421 | if (reply) { |
422 | DBusMessageIter reply_iter; |
423 | dbus->message_iter_init(reply, &reply_iter); |
424 | |
425 | if (dbus->message_iter_get_arg_type(&reply_iter) == DBUS_TYPE_OBJECT_PATH) { |
426 | dbus->message_iter_get_basic(&reply_iter, &signal_id); |
427 | } |
428 | } |
429 | |
430 | if (!signal_id) { |
431 | SDL_SetError("Invalid response received by DBus" ); |
432 | callback(userdata, NULL, -1); |
433 | goto incorrect_type; |
434 | } |
435 | |
436 | dbus->message_unref(msg); |
437 | |
438 | filter_len = SDL_strlen(SIGNAL_FILTER) + SDL_strlen(signal_id) + 2; |
439 | filter = SDL_malloc(sizeof(char) * filter_len); |
440 | if (!filter) { |
441 | callback(userdata, NULL, -1); |
442 | goto incorrect_type; |
443 | } |
444 | |
445 | SDL_snprintf(filter, filter_len, SIGNAL_FILTER"%s'" , signal_id); |
446 | dbus->bus_add_match(dbus->session_conn, filter, NULL); |
447 | SDL_free(filter); |
448 | |
449 | SignalCallback *data = SDL_malloc(sizeof(SignalCallback)); |
450 | if (!data) { |
451 | callback(userdata, NULL, -1); |
452 | goto incorrect_type; |
453 | } |
454 | data->callback = callback; |
455 | data->userdata = userdata; |
456 | data->path = SDL_strdup(signal_id); |
457 | if (!data->path) { |
458 | SDL_free(data); |
459 | callback(userdata, NULL, -1); |
460 | goto incorrect_type; |
461 | } |
462 | |
463 | /* TODO: This should be registered before opening the portal, or the filter will not catch |
464 | the message if it is sent before we register the filter. |
465 | */ |
466 | dbus->connection_add_filter(dbus->session_conn, |
467 | &DBus_MessageFilter, data, NULL); |
468 | dbus->connection_flush(dbus->session_conn); |
469 | |
470 | incorrect_type: |
471 | dbus->message_unref(reply); |
472 | } |
473 | |
474 | bool SDL_Portal_detect(void) |
475 | { |
476 | SDL_DBusContext *dbus = SDL_DBus_GetContext(); |
477 | DBusMessage *msg = NULL, *reply = NULL; |
478 | char *reply_str = NULL; |
479 | DBusMessageIter reply_iter; |
480 | static int portal_present = -1; |
481 | |
482 | // No need for this if the result is cached. |
483 | if (portal_present != -1) { |
484 | return (portal_present > 0); |
485 | } |
486 | |
487 | portal_present = 0; |
488 | |
489 | if (!dbus) { |
490 | SDL_SetError("%s" , "Failed to connect to DBus!" ); |
491 | return false; |
492 | } |
493 | |
494 | // Use introspection to get the available services. |
495 | msg = dbus->message_new_method_call(PORTAL_DESTINATION, PORTAL_PATH, "org.freedesktop.DBus.Introspectable" , "Introspect" ); |
496 | if (!msg) { |
497 | goto done; |
498 | } |
499 | |
500 | reply = dbus->connection_send_with_reply_and_block(dbus->session_conn, msg, DBUS_TIMEOUT_USE_DEFAULT, NULL); |
501 | dbus->message_unref(msg); |
502 | if (!reply) { |
503 | goto done; |
504 | } |
505 | |
506 | if (!dbus->message_iter_init(reply, &reply_iter)) { |
507 | goto done; |
508 | } |
509 | |
510 | if (dbus->message_iter_get_arg_type(&reply_iter) != DBUS_TYPE_STRING) { |
511 | goto done; |
512 | } |
513 | |
514 | /* Introspection gives us a dump of all the services on the destination in XML format, so search the |
515 | * giant string for the file chooser protocol. |
516 | */ |
517 | dbus->message_iter_get_basic(&reply_iter, &reply_str); |
518 | if (SDL_strstr(reply_str, PORTAL_INTERFACE)) { |
519 | portal_present = 1; // Found it! |
520 | } |
521 | |
522 | done: |
523 | if (reply) { |
524 | dbus->message_unref(reply); |
525 | } |
526 | |
527 | return (portal_present > 0); |
528 | } |
529 | |
530 | #else |
531 | |
532 | // Dummy implementation to avoid compilation problems |
533 | |
534 | void SDL_Portal_ShowFileDialogWithProperties(SDL_FileDialogType type, SDL_DialogFileCallback callback, void *userdata, SDL_PropertiesID props) |
535 | { |
536 | SDL_Unsupported(); |
537 | callback(userdata, NULL, -1); |
538 | } |
539 | |
540 | bool SDL_Portal_detect(void) |
541 | { |
542 | return false; |
543 | } |
544 | |
545 | #endif // SDL_USE_LIBDBUS |
546 | |