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File dialog improvements

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- Add a globally-accessible function to handle the parsing of filter extensions
- Remove the ability of putting the wildcard ('*') among other patterns; it's either a list of patterns or a single '*' now
- Add a hint to select between portals and Zenity on Unix
This commit is contained in:
Semphris 2024-04-02 16:03:58 -04:00 • committed by Sam Lantinga
parent 5fa87e29e7
commit 6ad390fc50
18 changed files with 501 additions and 125 deletions
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57
src/dialog/unix/SDL_unixdialog.c
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@ -27,31 +27,56 @@ static void (*detected_open)(SDL_DialogFileCallback callback, void* userdata, SD
static void (*detected_save)(SDL_DialogFileCallback callback, void* userdata, SDL_Window* window, const SDL_DialogFileFilter *filters, const char* default_location) = NULL;
static void (*detected_folder)(SDL_DialogFileCallback callback, void* userdata, SDL_Window* window, const char* default_location, SDL_bool allow_many) = NULL;
/* Returns non-zero on success, 0 on failure */
static int detect_available_methods(void)
static int detect_available_methods(const char *value);
void SDLCALL hint_callback(void *userdata, const char *name, const char *oldValue, const char *newValue)
{
if (SDL_Portal_detect()) {
detected_open = SDL_Portal_ShowOpenFileDialog;
detected_save = SDL_Portal_ShowSaveFileDialog;
detected_folder = SDL_Portal_ShowOpenFolderDialog;
return 1;
detect_available_methods(newValue);
}
static void set_callback(void)
{
static SDL_bool is_set = SDL_FALSE;
if (is_set == SDL_FALSE) {
is_set = SDL_TRUE;
SDL_AddHintCallback(SDL_HINT_FILE_DIALOG_DRIVER, hint_callback, NULL);
}
}
/* Returns non-zero on success, 0 on failure */
static int detect_available_methods(const char *value)
{
const char *driver = value ? value : SDL_GetHint(SDL_HINT_FILE_DIALOG_DRIVER);
set_callback();
if (driver == NULL || SDL_strcmp(driver, "portal") == 0) {
if (SDL_Portal_detect()) {
detected_open = SDL_Portal_ShowOpenFileDialog;
detected_save = SDL_Portal_ShowSaveFileDialog;
detected_folder = SDL_Portal_ShowOpenFolderDialog;
return 1;
}
}
if (SDL_Zenity_detect()) {
detected_open = SDL_Zenity_ShowOpenFileDialog;
detected_save = SDL_Zenity_ShowSaveFileDialog;
detected_folder = SDL_Zenity_ShowOpenFolderDialog;
return 2;
if (driver == NULL || SDL_strcmp(driver, "zenity") == 0) {
if (SDL_Zenity_detect()) {
detected_open = SDL_Zenity_ShowOpenFileDialog;
detected_save = SDL_Zenity_ShowSaveFileDialog;
detected_folder = SDL_Zenity_ShowOpenFolderDialog;
return 2;
}
}
SDL_SetError("No supported method for file dialogs");
SDL_SetError("File dialog driver unsupported");
return 0;
}
void SDL_ShowOpenFileDialog(SDL_DialogFileCallback callback, void* userdata, SDL_Window* window, const SDL_DialogFileFilter *filters, const char* default_location, SDL_bool allow_many)
{
/* Call detect_available_methods() again each time in case the situation changed */
if (!detected_open && !detect_available_methods()) {
if (!detected_open && !detect_available_methods(NULL)) {
/* SetError() done by detect_available_methods() */
callback(userdata, NULL, -1);
return;
@ -63,7 +88,7 @@ void SDL_ShowOpenFileDialog(SDL_DialogFileCallback callback, void* userdata, SDL
void SDL_ShowSaveFileDialog(SDL_DialogFileCallback callback, void* userdata, SDL_Window* window, const SDL_DialogFileFilter *filters, const char* default_location)
{
/* Call detect_available_methods() again each time in case the situation changed */
if (!detected_save && !detect_available_methods()) {
if (!detected_save && !detect_available_methods(NULL)) {
/* SetError() done by detect_available_methods() */
callback(userdata, NULL, -1);
return;
@ -75,7 +100,7 @@ void SDL_ShowSaveFileDialog(SDL_DialogFileCallback callback, void* userdata, SDL
void SDL_ShowOpenFolderDialog(SDL_DialogFileCallback callback, void* userdata, SDL_Window* window, const char* default_location, SDL_bool allow_many)
{
/* Call detect_available_methods() again each time in case the situation changed */
if (!detected_folder && !detect_available_methods()) {
if (!detected_folder && !detect_available_methods(NULL)) {
/* SetError() done by detect_available_methods() */
callback(userdata, NULL, -1);
return;