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pcsx2/3rdparty/wxwidgets3.0/src/msw/dirdlg.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: src/msw/dirdlg.cpp
// Purpose: wxDirDialog
// Author: Julian Smart
// Modified by:
// Created: 01/02/97
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_DIRDLG
#if wxUSE_OLE && !defined(__GNUWIN32_OLD__) && (!defined(__WXWINCE__) || \
(defined(__HANDHELDPC__) && (_WIN32_WCE >= 500)))
#include "wx/dirdlg.h"
#include "wx/modalhook.h"
#ifndef WX_PRECOMP
#include "wx/utils.h"
#include "wx/dialog.h"
#include "wx/log.h"
#include "wx/app.h" // for GetComCtl32Version()
#endif
#include "wx/msw/private.h"
#include "wx/msw/wrapshl.h"
#include "wx/msw/private/comptr.h"
#include "wx/dynlib.h"
#include <initguid.h>
// We can only use IFileDialog under desktop Windows and we need
// wxDynamicLibrary for it.
#if wxUSE_DYNLIB_CLASS && !defined(__WXWINCE__)
#define wxUSE_IFILEDIALOG 1
#else
#define wxUSE_IFILEDIALOG 0
#endif
#if wxUSE_IFILEDIALOG
// IFileDialog related declarations missing from some compilers headers.
// IShellItem
#ifndef __IShellItem_INTERFACE_DEFINED__
#ifndef SIGDN_FILESYSPATH
#define SIGDN_FILESYSPATH 0x80058000
#endif
struct IShellItem : public IUnknown
{
virtual HRESULT wxSTDCALL BindToHandler(IBindCtx*, REFGUID, REFIID, void**) = 0;
virtual HRESULT wxSTDCALL GetParent(IShellItem**) = 0;
virtual HRESULT wxSTDCALL GetDisplayName(DWORD, LPWSTR*) = 0;
virtual HRESULT wxSTDCALL GetAttributes(ULONG, ULONG*) = 0;
virtual HRESULT wxSTDCALL Compare(IShellItem*, DWORD, int*) = 0;
};
#endif // #ifndef __IShellItem_INTERFACE_DEFINED__
// Define this GUID in any case, even when __IShellItem_INTERFACE_DEFINED__ is
// defined in the headers we might still not have it in the actual uuid.lib,
// this happens with at least VC7 used with its original (i.e. not updated) SDK
// and there is no harm in defining the GUID unconditionally.
DEFINE_GUID(IID_IShellItem,
0x43826D1E, 0xE718, 0x42EE, 0xBC, 0x55, 0xA1, 0xE2, 0x61, 0xC3, 0x7B, 0xFE);
struct IShellItemFilter;
struct IFileDialogEvents;
// IModalWindow
#ifndef __IModalWindow_INTERFACE_DEFINED__
struct IModalWindow : public IUnknown
{
virtual HRESULT wxSTDCALL Show(HWND) = 0;
};
#endif // #ifndef __IModalWindow_INTERFACE_DEFINED__
// IFileDialog
#ifndef __IFileDialog_INTERFACE_DEFINED__
#ifndef FOS_PICKFOLDERS
#define FOS_PICKFOLDERS 0x20
#endif
#ifndef FOS_FORCEFILESYSTEM
#define FOS_FORCEFILESYSTEM 0x40
#endif
struct _COMDLG_FILTERSPEC;
struct IFileDialog : public IModalWindow
{
virtual HRESULT wxSTDCALL SetFileTypes(UINT, const _COMDLG_FILTERSPEC*) = 0;
virtual HRESULT wxSTDCALL SetFileTypeIndex(UINT) = 0;
virtual HRESULT wxSTDCALL GetFileTypeIndex(UINT*) = 0;
virtual HRESULT wxSTDCALL Advise(IFileDialogEvents*, DWORD*) = 0;
virtual HRESULT wxSTDCALL Unadvise(DWORD) = 0;
virtual HRESULT wxSTDCALL SetOptions(DWORD) = 0;
virtual HRESULT wxSTDCALL GetOptions(DWORD*) = 0;
virtual HRESULT wxSTDCALL SetDefaultFolder(IShellItem*) = 0;
virtual HRESULT wxSTDCALL SetFolder(IShellItem*) = 0;
virtual HRESULT wxSTDCALL GetFolder(IShellItem**) = 0;
virtual HRESULT wxSTDCALL GetCurrentSelection(IShellItem**) = 0;
virtual HRESULT wxSTDCALL SetFileName(LPCWSTR) = 0;
virtual HRESULT wxSTDCALL GetFileName(LPWSTR*) = 0;
virtual HRESULT wxSTDCALL SetTitle(LPCWSTR) = 0;
virtual HRESULT wxSTDCALL SetOkButtonLabel(LPCWSTR) = 0;
virtual HRESULT wxSTDCALL SetFileNameLabel(LPCWSTR) = 0;
virtual HRESULT wxSTDCALL GetResult(IShellItem**) = 0;
virtual HRESULT wxSTDCALL AddPlace(IShellItem*, DWORD) = 0;
virtual HRESULT wxSTDCALL SetDefaultExtension(LPCWSTR) = 0;
virtual HRESULT wxSTDCALL Close(HRESULT) = 0;
virtual HRESULT wxSTDCALL SetClientGuid(REFGUID) = 0;
virtual HRESULT wxSTDCALL ClearClientData() = 0;
virtual HRESULT wxSTDCALL SetFilter(IShellItemFilter*) = 0;
};
DEFINE_GUID(CLSID_FileOpenDialog,
0xDC1C5A9C, 0xE88A, 0x4dde, 0xA5, 0xA1, 0x60, 0xF8, 0x2A, 0x20, 0xAE, 0xF7);
DEFINE_GUID(IID_IFileDialog,
0x42F85136, 0xDB7E, 0x439C, 0x85, 0xF1, 0xE4, 0x07, 0x5D, 0x13, 0x5F, 0xC8);
#endif // #ifndef __IFileDialog_INTERFACE_DEFINED__
#endif // wxUSE_IFILEDIALOG
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
#ifndef BIF_NEWDIALOGSTYLE
#define BIF_NEWDIALOGSTYLE 0x0040
#endif
#ifndef BIF_NONEWFOLDERBUTTON
#define BIF_NONEWFOLDERBUTTON 0x0200
#endif
#ifndef BIF_EDITBOX
#define BIF_EDITBOX 16
#endif
// ----------------------------------------------------------------------------
// wxWidgets macros
// ----------------------------------------------------------------------------
IMPLEMENT_CLASS(wxDirDialog, wxDialog)
// ----------------------------------------------------------------------------
// private functions prototypes
// ----------------------------------------------------------------------------
// the callback proc for the dir dlg
static int CALLBACK BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lp,
LPARAM pData);
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// wxDirDialog
// ----------------------------------------------------------------------------
wxDirDialog::wxDirDialog(wxWindow *parent,
const wxString& message,
const wxString& defaultPath,
long style,
const wxPoint& WXUNUSED(pos),
const wxSize& WXUNUSED(size),
const wxString& WXUNUSED(name))
{
m_message = message;
m_parent = parent;
SetWindowStyle(style);
SetPath(defaultPath);
}
void wxDirDialog::SetPath(const wxString& path)
{
m_path = path;
// SHBrowseForFolder doesn't like '/'s nor the trailing backslashes
m_path.Replace(wxT("/"), wxT("\\"));
while ( !m_path.empty() && (*(m_path.end() - 1) == wxT('\\')) )
{
m_path.erase(m_path.length() - 1);
}
// but the root drive should have a trailing slash (again, this is just
// the way the native dialog works)
if ( !m_path.empty() && (*(m_path.end() - 1) == wxT(':')) )
{
m_path += wxT('\\');
}
}
int wxDirDialog::ShowModal()
{
WX_HOOK_MODAL_DIALOG();
wxWindow* const parent = GetParentForModalDialog();
WXHWND hWndParent = parent ? GetHwndOf(parent) : NULL;
// Use IFileDialog under new enough Windows, it's more user-friendly.
int rc;
#if wxUSE_IFILEDIALOG
// While the new dialog is available under Vista, it may return a wrong
// path there (see http://support.microsoft.com/kb/969885/en-us), so we
// don't use it there by default. We could improve the version test to
// allow its use if the comdlg32.dll version is greater than 6.0.6002.22125
// as this means that the hotfix correcting this bug is installed.
if ( wxGetWinVersion() > wxWinVersion_Vista )
{
rc = ShowIFileDialog(hWndParent);
}
else
{
rc = wxID_NONE;
}
if ( rc == wxID_NONE )
#endif // wxUSE_IFILEDIALOG
{
rc = ShowSHBrowseForFolder(hWndParent);
}
// change current working directory if asked so
if ( rc == wxID_OK && HasFlag(wxDD_CHANGE_DIR) )
wxSetWorkingDirectory(m_path);
return rc;
}
int wxDirDialog::ShowSHBrowseForFolder(WXHWND owner)
{
BROWSEINFO bi;
bi.hwndOwner = owner;
bi.pidlRoot = NULL;
bi.pszDisplayName = NULL;
// Please don't change this without checking it compiles
// with eVC++ first.
#if defined(__POCKETPC__) || defined(__SMARTPHONE__)
bi.lpszTitle = m_message.mb_str();
#else
bi.lpszTitle = m_message.c_str();
#endif
bi.ulFlags = BIF_RETURNONLYFSDIRS | BIF_STATUSTEXT;
bi.lpfn = BrowseCallbackProc;
bi.lParam = wxMSW_CONV_LPARAM(m_path); // param for the callback
static const int verComCtl32 = wxApp::GetComCtl32Version();
// we always add the edit box (it doesn't hurt anybody, does it?) if it is
// supported by the system
if ( verComCtl32 >= 471 )
{
bi.ulFlags |= BIF_EDITBOX;
}
// to have the "New Folder" button we must use the "new" dialog style which
// is also the only way to have a resizable dialog
//
// "new" style is only available in the version 5.0+ of comctl32.dll
const bool needNewDir = !HasFlag(wxDD_DIR_MUST_EXIST);
if ( (needNewDir || HasFlag(wxRESIZE_BORDER)) && (verComCtl32 >= 500) )
{
if (needNewDir)
{
bi.ulFlags |= BIF_NEWDIALOGSTYLE;
}
else
{
// Versions < 600 doesn't support BIF_NONEWFOLDERBUTTON
// The only way to get rid of the Make New Folder button is use
// the old dialog style which doesn't have the button thus we
// simply don't set the New Dialog Style for such comctl versions.
if (verComCtl32 >= 600)
{
bi.ulFlags |= BIF_NEWDIALOGSTYLE;
bi.ulFlags |= BIF_NONEWFOLDERBUTTON;
}
}
}
// do show the dialog
wxItemIdList pidl(SHBrowseForFolder(&bi));
wxItemIdList::Free((LPITEMIDLIST)bi.pidlRoot);
if ( !pidl )
{
// Cancel button pressed
return wxID_CANCEL;
}
m_path = pidl.GetPath();
return m_path.empty() ? wxID_CANCEL : wxID_OK;
}
// Function for obtaining folder name on Vista and newer.
//
// Returns wxID_OK on success, wxID_CANCEL if cancelled by user or wxID_NONE if
// an error occurred and we should fall back onto the old dialog.
#if wxUSE_IFILEDIALOG
int wxDirDialog::ShowIFileDialog(WXHWND owner)
{
HRESULT hr;
wxCOMPtr<IFileDialog> fileDialog;
hr = ::CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_INPROC_SERVER,
wxIID_PPV_ARGS(IFileDialog, &fileDialog));
if ( FAILED(hr) )
{
wxLogApiError(wxS("CoCreateInstance(CLSID_FileOpenDialog)"), hr);
return wxID_NONE;
}
// allow user to select only a file system folder
hr = fileDialog->SetOptions(FOS_PICKFOLDERS | FOS_FORCEFILESYSTEM);
if ( FAILED(hr) )
{
wxLogApiError(wxS("IFileDialog::SetOptions"), hr);
return wxID_NONE;
}
hr = fileDialog->SetTitle(m_message.wc_str());
if ( FAILED(hr) )
{
// This error is not serious, let's just log it and continue even
// without the title set.
wxLogApiError(wxS("IFileDialog::SetTitle"), hr);
}
// set the initial path
if ( !m_path.empty() )
{
// We need to link SHCreateItemFromParsingName() dynamically as it's
// not available on pre-Vista systems.
typedef HRESULT
(WINAPI *SHCreateItemFromParsingName_t)(PCWSTR,
IBindCtx*,
REFIID,
void**);
SHCreateItemFromParsingName_t pfnSHCreateItemFromParsingName = NULL;
wxDynamicLibrary dllShell32;
if ( dllShell32.Load(wxS("shell32.dll"), wxDL_VERBATIM | wxDL_QUIET) )
{
wxDL_INIT_FUNC(pfn, SHCreateItemFromParsingName, dllShell32);
}
if ( !pfnSHCreateItemFromParsingName )
{
wxLogLastError(wxS("SHCreateItemFromParsingName() not found"));
return wxID_NONE;
}
wxCOMPtr<IShellItem> folder;
hr = pfnSHCreateItemFromParsingName(m_path.wc_str(),
NULL,
wxIID_PPV_ARGS(IShellItem,
&folder));
// Failing to parse the folder name is not really an error, we'll just
// ignore the initial directory in this case, but we should still show
// the dialog.
if ( FAILED(hr) )
{
if ( hr != HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND) )
{
wxLogApiError(wxS("SHCreateItemFromParsingName"), hr);
return wxID_NONE;
}
}
else // The folder was parsed correctly.
{
hr = fileDialog->SetFolder(folder);
if ( FAILED(hr) )
{
wxLogApiError(wxS("IFileDialog::SetFolder"), hr);
return wxID_NONE;
}
}
}
wxString path;
hr = fileDialog->Show(owner);
if ( SUCCEEDED(hr) )
{
wxCOMPtr<IShellItem> folder;
hr = fileDialog->GetResult(&folder);
if ( SUCCEEDED(hr) )
{
LPOLESTR pathOLE = NULL;
hr = folder->GetDisplayName(SIGDN_FILESYSPATH, &pathOLE);
if ( SUCCEEDED(hr) )
{
path = pathOLE;
CoTaskMemFree(pathOLE);
}
else
{
wxLogApiError(wxS("IShellItem::GetDisplayName"), hr);
}
}
else
{
wxLogApiError(wxS("IFileDialog::GetResult"), hr);
}
}
else if ( hr == HRESULT_FROM_WIN32(ERROR_CANCELLED) )
{
return wxID_CANCEL; // the user cancelled the dialog
}
else
{
wxLogApiError(wxS("IFileDialog::Show"), hr);
}
if ( path.empty() )
{
// the user didn't cancel the dialog and yet the path is empty
// it means there was an error, already logged by wxLogApiError()
// now report the error to the user and return
wxLogSysError(_("Couldn't obtain folder name"), hr);
return wxID_CANCEL;
}
m_path = path;
return wxID_OK;
}
#endif // wxUSE_IFILEDIALOG
// ----------------------------------------------------------------------------
// private functions
// ----------------------------------------------------------------------------
static int CALLBACK
BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lp, LPARAM pData)
{
switch(uMsg)
{
#ifdef BFFM_SETSELECTION
case BFFM_INITIALIZED:
// sent immediately after initialisation and so we may set the
// initial selection here
//
// wParam = TRUE => lParam is a string and not a PIDL
::SendMessage(hwnd, BFFM_SETSELECTION, TRUE, pData);
break;
#endif // BFFM_SETSELECTION
case BFFM_SELCHANGED:
// note that this doesn't work with the new style UI (MSDN doesn't
// say anything about it, but the comments in shlobj.h do!) but we
// still execute this code in case it starts working again with the
// "new new UI" (or would it be "NewUIEx" according to tradition?)
{
// Set the status window to the currently selected path.
wxString strDir;
if ( SHGetPathFromIDList((LPITEMIDLIST)lp,
wxStringBuffer(strDir, MAX_PATH)) )
{
// NB: this shouldn't be necessary with the new style box
// (which is resizable), but as for now it doesn't work
// anyhow (see the comment above) no harm in doing it
// need to truncate or it displays incorrectly
static const size_t maxChars = 37;
if ( strDir.length() > maxChars )
{
strDir = strDir.Right(maxChars);
strDir = wxString(wxT("...")) + strDir;
}
SendMessage(hwnd, BFFM_SETSTATUSTEXT,
0, wxMSW_CONV_LPARAM(strDir));
}
}
break;
//case BFFM_VALIDATEFAILED: -- might be used to provide custom message
// if the user types in invalid dir name
}
return 0;
}
#endif // compiler/platform on which the code here compiles
#endif // wxUSE_DIRDLG
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