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linux: Add portal drag and drop

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This commit is contained in:
Colin Kinloch
2023-09-20 16:13:31 +01:00
committed by Frank Praznik
parent 952c5059b5
commit 99421b64d0
4 changed files with 137 additions and 20 deletions
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66
src/core/linux/SDL_dbus.c
View File

@@ -565,4 +565,70 @@ char *SDL_DBus_GetLocalMachineId(void)
return NULL;
}
/*
* Convert file drops with mime type "application/vnd.portal.filetransfer" to file paths
* Result must be freed with dbus->free_string_array().
* https://flatpak.github.io/xdg-desktop-portal/#gdbus-method-org-freedesktop-portal-FileTransfer.RetrieveFiles
*/
char **SDL_DBus_DocumentsPortalRetrieveFiles(const char *key, int *path_count)
{
DBusError err;
DBusMessageIter iter, iterDict;
char **paths = NULL;
DBusMessage *reply = NULL;
DBusMessage *msg = dbus.message_new_method_call("org.freedesktop.portal.Documents", /* Node */
"/org/freedesktop/portal/documents", /* Path */
"org.freedesktop.portal.FileTransfer", /* Interface */
"RetrieveFiles"); /* Method */
/* Make sure we have a connection to the dbus session bus */
if (!SDL_DBus_GetContext() || !dbus.session_conn) {
/* We either cannot connect to the session bus or were unable to
* load the D-Bus library at all. */
return NULL;
}
dbus.error_init(&err);
/* First argument is a "application/vnd.portal.filetransfer" key from a DnD or clipboard event */
if (!dbus.message_append_args(msg, DBUS_TYPE_STRING, &key, DBUS_TYPE_INVALID)) {
SDL_OutOfMemory();
dbus.message_unref(msg);
goto failed;
}
/* Second argument is a variant dictionary for options.
* The spec doesn't define any entries yet so it's empty. */
dbus.message_iter_init_append(msg, &iter);
if (!dbus.message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "{sv}", &iterDict) ||
!dbus.message_iter_close_container(&iter, &iterDict)) {
SDL_OutOfMemory();
dbus.message_unref(msg);
goto failed;
}
reply = dbus.connection_send_with_reply_and_block(dbus.session_conn, msg, DBUS_TIMEOUT_USE_DEFAULT, &err);
dbus.message_unref(msg);
if (reply) {
dbus.message_get_args(reply, &err, DBUS_TYPE_ARRAY, DBUS_TYPE_STRING, &paths, path_count, DBUS_TYPE_INVALID);
dbus.message_unref(reply);
}
if (paths) {
return paths;
}
failed:
if (dbus.error_is_set(&err)) {
SDL_SetError("%s: %s", err.name, err.message);
dbus.error_free(&err);
} else {
SDL_SetError("Error retrieving paths for documents portal \"%s\"", key);
}
return NULL;
}
#endif

2
src/core/linux/SDL_dbus.h
View File

@@ -102,6 +102,8 @@ extern SDL_bool SDL_DBus_ScreensaverInhibit(SDL_bool inhibit);
extern void SDL_DBus_PumpEvents(void);
extern char *SDL_DBus_GetLocalMachineId(void);
extern char **SDL_DBus_DocumentsPortalRetrieveFiles(const char *key, int *files_count);
#endif /* HAVE_DBUS_DBUS_H */
#endif /* SDL_dbus_h_ */