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Use more modern file dialog for browsing folders

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GoaLitiuM
2021-01-24 02:33:08 +02:00
parent 049450e31b
commit 4457bcf4a7
1 changed files with 37 additions and 27 deletions
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64
Source/Engine/Platform/Windows/WindowsFileSystem.cpp
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@@ -5,6 +5,7 @@
#include "WindowsFileSystem.h"
#include "Engine/Platform/File.h"
#include "Engine/Platform/Window.h"
#include "Engine/Platform/Windows/ComPtr.h"
#include "Engine/Core/Types/StringView.h"
#include "../Win32/IncludeWindowsHeaders.h"
@@ -293,41 +294,50 @@ bool WindowsFileSystem::ShowBrowseFolderDialog(Window* parentWindow, const Strin
{
bool result = true;
// Randomly generated GUID used for storing the last location of this dialog
const Guid folderGuid(0x53890ed9, 0xa55e47ba, 0xa970bdae, 0x72acedff);
// Allocate memory for the filenames
int32 maxPathSize = 2 * MAX_PATH;
Array<Char> pathBuffer;
pathBuffer.Resize(maxPathSize);
pathBuffer[0] = 0;
pathBuffer.EnsureCapacity(maxPathSize);
// Setup description
BROWSEINFOW bi;
ZeroMemory(&bi, sizeof(bi));
if (parentWindow)
bi.hwndOwner = static_cast<HWND>(parentWindow->GetNativePtr());
bi.lpszTitle = title.HasChars() ? title.Get() : nullptr;
bi.ulFlags = BIF_RETURNONLYFSDIRS | BIF_NEWDIALOGSTYLE;
bi.lpfn = BrowseCallbackProc;
bi.lParam = (LPARAM)(initialDirectory.HasChars() ? initialDirectory.Get() : nullptr);
LPITEMIDLIST pidl = SHBrowseForFolder(&bi);
if (pidl != nullptr)
ComPtr<IFileOpenDialog> fd;
if (SUCCEEDED(CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&fd))))
{
// Get the name of the folder and put it in path
SHGetPathFromIDList(pidl, pathBuffer.Get());
DWORD options;
fd->GetOptions(&options);
fd->SetOptions(options | FOS_PICKFOLDERS | FOS_NOCHANGEDIR);
if (pathBuffer[0] != 0)
{
path = pathBuffer.Get();
result = false;
}
if (title.HasChars())
fd->SetTitle(title.Get());
// Free memory used
IMalloc* imalloc = 0;
if (SUCCEEDED(SHGetMalloc(&imalloc)))
// Associate the last selected folder with this GUID instead of overwriting the global one
fd->SetClientGuid(*reinterpret_cast<const GUID*>(&folderGuid));
ComPtr<IShellItem> defaultFolder;
if (SUCCEEDED(SHCreateItemFromParsingName(initialDirectory.Get(), NULL, IID_PPV_ARGS(&defaultFolder))))
fd->SetFolder(defaultFolder);
if (SUCCEEDED(fd->Show(parentWindow->GetHWND())))
{
imalloc->Free(pidl);
imalloc->Release();
ComPtr<IShellItem> si;
if (SUCCEEDED(fd->GetResult(&si)))
{
LPWSTR resultPath;
if (SUCCEEDED(si->GetDisplayName(SIGDN_DESKTOPABSOLUTEPARSING, &resultPath)))
{
int32 resultPathLength = StringUtils::Length(resultPath);
if (resultPathLength < pathBuffer.Capacity())
{
StringUtils::Copy(pathBuffer.Get(), resultPath, resultPathLength);
CoTaskMemFree(resultPath);
path = pathBuffer.Get();
result = false;
}
}
}
}
}