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/*
* FileDialog.cpp
* --------------
* Purpose: File and folder selection dialogs implementation.
* Notes : (currently none)
* Authors: OpenMPT Devs
* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
*/
#include "stdafx.h"
#include "FileDialog.h"
#include "Mainfrm.h"
#include "InputHandler.h"
OPENMPT_NAMESPACE_BEGIN
class CFileDialogEx : public CFileDialog
{
public:
CFileDialogEx(bool bOpenFileDialog,
LPCTSTR lpszDefExt,
LPCTSTR lpszFileName,
DWORD dwFlags,
LPCTSTR lpszFilter,
CWnd *pParentWnd,
DWORD dwSize,
BOOL bVistaStyle,
bool preview)
: CFileDialog(bOpenFileDialog ? TRUE : FALSE, lpszDefExt, lpszFileName, dwFlags, lpszFilter, pParentWnd, dwSize, bVistaStyle)
, m_fileNameBuf(65536)
, doPreview(preview)
, played(false)
{
// MFC's filename buffer is way too small for multi-selections of a large number of files.
_tcsncpy(m_fileNameBuf.data(), lpszFileName, m_fileNameBuf.size());
m_fileNameBuf.back() = '\0';
m_ofn.lpstrFile = m_fileNameBuf.data();
m_ofn.nMaxFile = mpt::saturate_cast<DWORD>(m_fileNameBuf.size());
}
~CFileDialogEx()
{
if(played)
{
CMainFrame::GetMainFrame()->StopPreview();
}
}
#if NTDDI_VERSION >= NTDDI_VISTA
// MFC's AddPlace() is declared as throw() but can in fact throw if any of the COM calls fail, e.g. because the place does not exist.
// Avoid this by re-implementing our own version which doesn't throw.
void AddPlace(const mpt::PathString &path)
{
if(m_bVistaStyle && path.IsDirectory())
{
CComPtr<IShellItem> shellItem;
HRESULT hr = SHCreateItemFromParsingName(path.ToWide().c_str(), nullptr, IID_IShellItem, reinterpret_cast<void **>(&shellItem));
if(SUCCEEDED(hr))
{
static_cast<IFileDialog*>(m_pIFileDialog)->AddPlace(shellItem, FDAP_TOP);
}
}
}
#endif
protected:
std::vector<TCHAR> m_fileNameBuf;
CString oldName;
bool doPreview, played;
void OnFileNameChange() override
{
if(doPreview)
{
CString name = GetPathName();
if(!name.IsEmpty() && name != oldName)
{
oldName = name;
if(CMainFrame::GetMainFrame()->PlaySoundFile(mpt::PathString::FromCString(name), NOTE_MIDDLEC))
{
played = true;
}
}
}
CFileDialog::OnFileNameChange();
}
};
// Display the file dialog.
bool FileDialog::Show(CWnd *parent)
{
m_filenames.clear();
// First, set up the dialog...
CFileDialogEx dlg(m_load,
m_defaultExtension.empty() ? nullptr : m_defaultExtension.c_str(),
m_defaultFilename.c_str(),
OFN_EXPLORER | OFN_NOCHANGEDIR | OFN_HIDEREADONLY | OFN_ENABLESIZING | OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST | (m_multiSelect ? OFN_ALLOWMULTISELECT : 0) | (m_load ? 0 : (OFN_OVERWRITEPROMPT | OFN_NOREADONLYRETURN)),
m_extFilter.c_str(),
parent != nullptr ? parent : CMainFrame::GetMainFrame(),
0,
(mpt::OS::Windows::IsWine() || mpt::OS::Windows::Version::Current().IsBefore(mpt::OS::Windows::Version::WinVista)) ? FALSE : TRUE,
m_preview && TrackerSettings::Instance().previewInFileDialogs);
OPENFILENAME &ofn = dlg.GetOFN();
ofn.nFilterIndex = m_filterIndex != nullptr ? *m_filterIndex : 0;
if(!m_workingDirectory.empty())
{
ofn.lpstrInitialDir = m_workingDirectory.c_str();
}
#if NTDDI_VERSION >= NTDDI_VISTA
const auto places =
{
&TrackerSettings::Instance().PathPluginPresets,
&TrackerSettings::Instance().PathPlugins,
&TrackerSettings::Instance().PathSamples,
&TrackerSettings::Instance().PathInstruments,
&TrackerSettings::Instance().PathSongs,
};
for(const auto place : places)
{
dlg.AddPlace(place->GetDefaultDir());
}
for(const auto &place : m_places)
{
dlg.AddPlace(place);
}
#endif
// Do it!
BypassInputHandler bih;
if(dlg.DoModal() != IDOK)
{
return false;
}
// Retrieve variables
if(m_filterIndex != nullptr)
*m_filterIndex = ofn.nFilterIndex;
if(m_multiSelect)
{
#if NTDDI_VERSION >= NTDDI_VISTA
// Multiple files might have been selected
if(CComPtr<IShellItemArray> shellItems = dlg.GetResults(); shellItems != nullptr)
{
// Using the old-style GetNextPathName doesn't work properly when the user performs a search and selects files from different folders.
// Hence we use that only as a fallback.
DWORD numItems = 0;
shellItems->GetCount(&numItems);
for(DWORD i = 0; i < numItems; i++)
{
CComPtr<IShellItem> shellItem;
shellItems->GetItemAt(i, &shellItem);
LPWSTR filePath = nullptr;
if(HRESULT hr = shellItem->GetDisplayName(SIGDN_FILESYSPATH, &filePath); SUCCEEDED(hr))
{
m_filenames.push_back(mpt::PathString::FromWide(filePath));
::CoTaskMemFree(filePath);
}
}
} else
#endif
{
POSITION pos = dlg.GetStartPosition();
while(pos != nullptr)
{
m_filenames.push_back(mpt::PathString::FromCString(dlg.GetNextPathName(pos)));
}
}
} else
{
// Only one file
m_filenames.push_back(mpt::PathString::FromCString(dlg.GetPathName()));
}
if(m_filenames.empty())
{
return false;
}
m_workingDirectory = m_filenames.front().AsNative().substr(0, ofn.nFileOffset);
m_extension = m_filenames.front().AsNative().substr(ofn.nFileExtension);
return true;
}
// Helper callback to set start path.
int CALLBACK BrowseForFolder::BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM /*lParam*/, LPARAM lpData)
{
if(uMsg == BFFM_INITIALIZED && lpData != NULL)
{
const BrowseForFolder *that = reinterpret_cast<BrowseForFolder *>(lpData);
SendMessage(hwnd, BFFM_SETSELECTION, TRUE, reinterpret_cast<LPARAM>(that->m_workingDirectory.AsNative().c_str()));
}
return 0;
}
// Display the folder dialog.
bool BrowseForFolder::Show(CWnd *parent)
{
// Note: MFC's CFolderPickerDialog won't work on pre-Vista systems, as it tries to use OPENFILENAME.
BypassInputHandler bih;
TCHAR path[MAX_PATH];
BROWSEINFO bi;
MemsetZero(bi);
bi.hwndOwner = (parent != nullptr ? parent : theApp.m_pMainWnd)->m_hWnd;
if(!m_caption.IsEmpty()) bi.lpszTitle = m_caption;
bi.pszDisplayName = path;
bi.ulFlags = BIF_RETURNONLYFSDIRS | BIF_USENEWUI;
bi.lpfn = BrowseCallbackProc;
bi.lParam = reinterpret_cast<LPARAM>(this);
LPITEMIDLIST pid = SHBrowseForFolder(&bi);
bool success = pid != nullptr && SHGetPathFromIDList(pid, path);
CoTaskMemFree(pid);
if(success)
{
m_workingDirectory = mpt::PathString::FromNative(path);
}
return success;
}
OPENMPT_NAMESPACE_END
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