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storage: Trim the title storage root from enumerated paths

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This commit is contained in:
Ethan Lee
2025-01-09 11:53:54 -05:00
committed by Ryan C. Gordon
parent 037cd25a22
commit 7acf78ba92
1 changed files with 22 additions and 1 deletions
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23
src/storage/generic/SDL_genericstorage.c
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@@ -44,13 +44,34 @@ static bool GENERIC_CloseStorage(void *userdata)
return true; return true;
} }
typedef struct GenericEnumerateData
{
size_t base_len;
SDL_EnumerateDirectoryCallback real_callback;
void *real_userdata;
} GenericEnumerateData;
static SDL_EnumerationResult SDLCALL GENERIC_EnumerateDirectory(void *userdata, const char *dirname, const char *fname)
{
// SDL_EnumerateDirectory will return the full path, so for Storage we
// can take the base directory and add its length to the dirname string,
// effectively trimming the root without having to strdup anything.
GenericEnumerateData *wrap_data = (GenericEnumerateData *)userdata;
return wrap_data->real_callback(wrap_data->real_userdata, dirname + wrap_data->base_len, fname);
}
static bool GENERIC_EnumerateStorageDirectory(void *userdata, const char *path, SDL_EnumerateDirectoryCallback callback, void *callback_userdata) static bool GENERIC_EnumerateStorageDirectory(void *userdata, const char *path, SDL_EnumerateDirectoryCallback callback, void *callback_userdata)
{ {
bool result = false; bool result = false;
GenericEnumerateData wrap_data;
char *fullpath = GENERIC_INTERNAL_CreateFullPath((char *)userdata, path); char *fullpath = GENERIC_INTERNAL_CreateFullPath((char *)userdata, path);
if (fullpath) { if (fullpath) {
result = SDL_EnumerateDirectory(fullpath, callback, callback_userdata); wrap_data.base_len = SDL_strlen((char *)userdata);
wrap_data.real_callback = callback;
wrap_data.real_userdata = callback_userdata;
result = SDL_EnumerateDirectory(fullpath, GENERIC_EnumerateDirectory, &wrap_data);
SDL_free(fullpath); SDL_free(fullpath);
} }