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Valiantsin DzerakhandClaude Opus 5.5
4e90c61c52
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>
85 lines
3.0 KiB
C++
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
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// game window, on a thread of its own so the present thread that draws the menu keeps running.
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#include <windows.h>
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#include <shobjidl.h>
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#include <stdlib.h>
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#include <string>
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extern "C" {
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#include "folder_pick.h"
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#include "host.h"
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#include "input_win.h"
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#include "platform/platform.h"
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}
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struct PickReq {
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std::string start;
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FolderPickDone done;
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void *ctx;
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};
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static std::wstring wide(const std::string &utf8) {
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int n = MultiByteToWideChar(CP_UTF8, 0, utf8.c_str(), -1, NULL, 0);
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std::wstring w(n > 0 ? n : 1, L'\0');
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if (n > 0) MultiByteToWideChar(CP_UTF8, 0, utf8.c_str(), -1, &w[0], n);
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w.resize(wcslen(w.c_str()));
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return w;
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}
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static std::string utf8(const wchar_t *w) {
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int n = WideCharToMultiByte(CP_UTF8, 0, w, -1, NULL, 0, NULL, NULL);
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std::string s(n > 0 ? n : 1, '\0');
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if (n > 0) WideCharToMultiByte(CP_UTF8, 0, w, -1, &s[0], n, NULL, NULL);
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s.resize(strlen(s.c_str()));
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return s;
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}
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// The dialog wants an absolute folder that exists; anything else leaves it at the shell's last folder.
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static void set_start(IFileOpenDialog *d, const std::string &start) {
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wchar_t full[MAX_PATH * 2];
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if (start.empty() || !GetFullPathNameW(wide(start).c_str(), MAX_PATH * 2, full, NULL)) return;
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IShellItem *item = NULL;
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if (SUCCEEDED(SHCreateItemFromParsingName(full, NULL, IID_PPV_ARGS(&item)))) {
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d->SetFolder(item);
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item->Release();
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}
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}
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static void pick_main(void *arg) {
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PickReq *r = (PickReq *)arg;
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std::string chosen;
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HRESULT co = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE);
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IFileOpenDialog *d = NULL;
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HRESULT hr = CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&d));
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if (SUCCEEDED(hr)) {
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FILEOPENDIALOGOPTIONS opt = 0;
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d->GetOptions(&opt);
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d->SetOptions(opt | FOS_PICKFOLDERS | FOS_FORCEFILESYSTEM | FOS_PATHMUSTEXIST);
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set_start(d, r->start);
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hr = d->Show(gfx_window_handle());
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IShellItem *item = NULL;
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if (SUCCEEDED(hr) && SUCCEEDED(hr = d->GetResult(&item))) {
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PWSTR path = NULL;
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if (SUCCEEDED(hr = item->GetDisplayName(SIGDN_FILESYSPATH, &path))) {
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chosen = utf8(path);
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CoTaskMemFree(path);
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}
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item->Release();
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}
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d->Release();
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}
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if (FAILED(hr) && hr != HRESULT_FROM_WIN32(ERROR_CANCELLED)) rt_log("folder_pick: the folder dialog failed (0x%08lx)", (unsigned long)hr);
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r->done(chosen.empty() ? NULL : chosen.c_str(), r->ctx);
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if (SUCCEEDED(co)) CoUninitialize();
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delete r;
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}
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extern "C" void folder_pick(const char *start, FolderPickDone done, void *ctx) {
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PickReq *r = new PickReq{start ? start : "", done, ctx};
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if (!plat_thread_spawn(pick_main, r, "folder dialog", 0)) {
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rt_log("folder_pick: cannot start the dialog thread");
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done(NULL, ctx);
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delete r;
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}
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}
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