Files
totk-pc-recomp/runtime/folder_pick_win.cpp
T
Valiantsin DzerakhandClaude Opus 5.5 4e90c61c52 Choose the amiibo folder with the host's folder dialog
The Amiibo tab's folder field took no typing: the menu never passes typed characters to Dear ImGui, so "Open" only
re-read "./amiibo". A missing folder said so at the bottom of the right pane, below its scroll.

"Open" now shows the shell's folder dialog on Windows (IFileOpenDialog on a thread of its own, owned by the game
window) and SDL_ShowOpenFolderDialog on the SDL window thread elsewhere; the tab shows the folder as text and names a
missing one inside the empty list.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 17:36:09 +03:00

85 lines
3.0 KiB
C++

// The Win32 front end of folder_pick.h: the shell's folder dialog (IFileOpenDialog with FOS_PICKFOLDERS), owned by the
// game window, on a thread of its own so the present thread that draws the menu keeps running.
#include <windows.h>
#include <shobjidl.h>
#include <stdlib.h>
#include <string>
extern "C" {
#include "folder_pick.h"
#include "host.h"
#include "input_win.h"
#include "platform/platform.h"
}
struct PickReq {
std::string start;
FolderPickDone done;
void *ctx;
};
static std::wstring wide(const std::string &utf8) {
int n = MultiByteToWideChar(CP_UTF8, 0, utf8.c_str(), -1, NULL, 0);
std::wstring w(n > 0 ? n : 1, L'\0');
if (n > 0) MultiByteToWideChar(CP_UTF8, 0, utf8.c_str(), -1, &w[0], n);
w.resize(wcslen(w.c_str()));
return w;
}
static std::string utf8(const wchar_t *w) {
int n = WideCharToMultiByte(CP_UTF8, 0, w, -1, NULL, 0, NULL, NULL);
std::string s(n > 0 ? n : 1, '\0');
if (n > 0) WideCharToMultiByte(CP_UTF8, 0, w, -1, &s[0], n, NULL, NULL);
s.resize(strlen(s.c_str()));
return s;
}
// The dialog wants an absolute folder that exists; anything else leaves it at the shell's last folder.
static void set_start(IFileOpenDialog *d, const std::string &start) {
wchar_t full[MAX_PATH * 2];
if (start.empty() || !GetFullPathNameW(wide(start).c_str(), MAX_PATH * 2, full, NULL)) return;
IShellItem *item = NULL;
if (SUCCEEDED(SHCreateItemFromParsingName(full, NULL, IID_PPV_ARGS(&item)))) {
d->SetFolder(item);
item->Release();
}
}
static void pick_main(void *arg) {
PickReq *r = (PickReq *)arg;
std::string chosen;
HRESULT co = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE);
IFileOpenDialog *d = NULL;
HRESULT hr = CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&d));
if (SUCCEEDED(hr)) {
FILEOPENDIALOGOPTIONS opt = 0;
d->GetOptions(&opt);
d->SetOptions(opt | FOS_PICKFOLDERS | FOS_FORCEFILESYSTEM | FOS_PATHMUSTEXIST);
set_start(d, r->start);
hr = d->Show(gfx_window_handle());
IShellItem *item = NULL;
if (SUCCEEDED(hr) && SUCCEEDED(hr = d->GetResult(&item))) {
PWSTR path = NULL;
if (SUCCEEDED(hr = item->GetDisplayName(SIGDN_FILESYSPATH, &path))) {
chosen = utf8(path);
CoTaskMemFree(path);
}
item->Release();
}
d->Release();
}
if (FAILED(hr) && hr != HRESULT_FROM_WIN32(ERROR_CANCELLED)) rt_log("folder_pick: the folder dialog failed (0x%08lx)", (unsigned long)hr);
r->done(chosen.empty() ? NULL : chosen.c_str(), r->ctx);
if (SUCCEEDED(co)) CoUninitialize();
delete r;
}
extern "C" void folder_pick(const char *start, FolderPickDone done, void *ctx) {
PickReq *r = new PickReq{start ? start : "", done, ctx};
if (!plat_thread_spawn(pick_main, r, "folder dialog", 0)) {
rt_log("folder_pick: cannot start the dialog thread");
done(NULL, ctx);
delete r;
}
}