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dialog: Pass the Wayland or X11 parent window handle to the file dialog portal

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Pass the Wayland window export string in the form "wayland:<handle string>" or the X11 window XID in the form "x11:<XID in hex>" to the file dialog portal, so that the window manager can associate the dialog with the parent window and position it correctly.
This commit is contained in:
Frank Praznik 2024-03-15 13:30:21 -04:00
parent d523cd069f
commit ea60c2079b
1 changed files with 38 additions and 2 deletions
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40
src/dialog/unix/SDL_portaldialog.c
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@ -41,6 +41,9 @@
#define HANDLE_LEN 10
#define WAYLAND_HANDLE_PREFIX "wayland:"
#define X11_HANDLE_PREFIX "x11:"
typedef struct {
SDL_DialogFileCallback callback;
void *userdata;
@ -263,8 +266,9 @@ static void DBus_OpenDialog(const char *method, const char *method_title, SDL_Di
const char *signal_id;
char *handle_str, *filter;
int filter_len;
static const char *parent_window = ""; /* TODO: Consider using X11's PID or the Wayland handle */
static uint32_t handle_id = 0;
static char *default_parent_window = "";
SDL_PropertiesID props = SDL_GetWindowProperties(window);
if (dbus == NULL) {
SDL_SetError("%s", "Failed to connect to DBus!");
@ -278,7 +282,39 @@ static void DBus_OpenDialog(const char *method, const char *method_title, SDL_Di
}
dbus->message_iter_init_append(msg, &params);
dbus->message_iter_append_basic(&params, DBUS_TYPE_STRING, &parent_window);
handle_str = default_parent_window;
if (props) {
const char *parent_handle = SDL_GetProperty(props, SDL_PROP_WINDOW_WAYLAND_XDG_TOPLEVEL_EXPORT_HANDLE_POINTER, NULL);
if (parent_handle) {
size_t len = SDL_strlen(parent_handle);
len += sizeof(WAYLAND_HANDLE_PREFIX) + 1;
handle_str = SDL_malloc(len * sizeof(char));
if (!handle_str) {
return;
}
SDL_snprintf(handle_str, len, "%s%s", WAYLAND_HANDLE_PREFIX, parent_handle);
} else {
const Uint64 xid = (Uint64)SDL_GetNumberProperty(props, SDL_PROP_WINDOW_X11_WINDOW_NUMBER, 0);
if (xid) {
const size_t len = sizeof(X11_HANDLE_PREFIX) + 24; /* A 64-bit number can be 20 characters max. */
handle_str = SDL_malloc(len * sizeof(char));
if (!handle_str) {
return;
}
/* The portal wants X11 window ID numbers in hex. */
SDL_snprintf(handle_str, len, "%s%" SDL_PRIx64, X11_HANDLE_PREFIX, xid);
}
}
}
dbus->message_iter_append_basic(&params, DBUS_TYPE_STRING, &handle_str);
if (handle_str != default_parent_window) {
SDL_free(handle_str);
}
dbus->message_iter_append_basic(&params, DBUS_TYPE_STRING, &method_title);
dbus->message_iter_open_container(&params, DBUS_TYPE_ARRAY, "{sv}", &options);