BtrfsChangeDriveLetter Class Reference

#include <volpropsheet.h>

Collaboration diagram for BtrfsChangeDriveLetter:

Public Member Functions
	BtrfsChangeDriveLetter (HWND hwnd, const wstring_view &fn)
void	show ()
INT_PTR	DlgProc (HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)

Private Member Functions
void	do_change (HWND hwndDlg)

Private Attributes
HWND	hwnd
wstring	fn
vector< wchar_t >	letters

Detailed Description

Definition at line 115 of file volpropsheet.h.

Constructor & Destructor Documentation

BtrfsChangeDriveLetter()

BtrfsChangeDriveLetter::BtrfsChangeDriveLetter ( HWND  hwnd, const wstring_view &  fn  )

inline

Definition at line 117 of file volpropsheet.h.

                                                              : hwnd(hwnd), fn(fn) {
    }

Member Function Documentation

DlgProc()

INT_PTR BtrfsChangeDriveLetter::DlgProc	(	HWND	hwndDlg,
		UINT	uMsg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 1526 of file volpropsheet.cpp.

                                                                                             {
    try {
        switch (uMsg) {
            case WM_INITDIALOG:
            {
                HWND cb = GetDlgItem(hwndDlg, IDC_DRIVE_LETTER_COMBO);
 
                SendMessageW(cb, CB_RESETCONTENT, 0, 0);
 
                mountmgr mm;
                wstring drv;
 
                drv = L"\\DosDevices\\?:";
 
                for (wchar_t l = 'A'; l <= 'Z'; l++) {
                    bool found = true;
 
                    drv[12] = l;
 
                    try {
                        auto v = mm.query_points(drv);
 
                        if (v.empty())
                            found = false;
                    } catch (const ntstatus_error& ntstatus) {
                        if (ntstatus.Status == STATUS_OBJECT_NAME_NOT_FOUND)
                            found = false;
                        else
                            throw;
                    }
 
                    if (!found) {
                        wstring str = L"?:";
 
                        str[0] = l;
                        letters.push_back(l);
 
                        SendMessageW(cb, CB_ADDSTRING, 0, reinterpret_cast<LPARAM>(str.c_str()));
                    }
                }
 
                break;
            }
 
            case WM_COMMAND:
                switch (HIWORD(wParam)) {
                    case BN_CLICKED:
                        switch (LOWORD(wParam)) {
                            case IDOK:
                                do_change(hwndDlg);
                                return true;
 
                            case IDCANCEL:
                                EndDialog(hwndDlg, 0);
                                return true;
                        }
                        break;
                }
            break;
        }
    } catch (const exception& e) {
        error_message(hwndDlg, e.what());
    }
 
    return false;
}

Referenced by dlg_proc().

do_change()

void BtrfsChangeDriveLetter::do_change ( HWND  hwndDlg )

private

Definition at line 1476 of file volpropsheet.cpp.

                                                   {
    unsigned int sel = (unsigned int)SendDlgItemMessageW(hwndDlg, IDC_DRIVE_LETTER_COMBO, CB_GETCURSEL, 0, 0);
 
    if (sel < letters.size()) {
        wstring dd;
 
        if (fn.length() == 3 && fn[1] == L':' && fn[2] == L'\\') {
            dd = L"\\DosDevices\\?:";
 
            dd[12] = fn[0];
        } else
#ifndef __REACTOS__
            throw runtime_error("Volume path was not root of drive.");
#else
            error_message(nullptr, "Volume path was not root of drive.");
#endif
 
        mountmgr mm;
        wstring dev_name;
 
        {
            auto v = mm.query_points(dd);
 
            if (v.empty())
#ifndef __REACTOS__
                throw runtime_error("Error finding device name.");
#else
                error_message(nullptr, "Error finding device name.");
#endif
 
            dev_name = v[0].device_name;
        }
 
        wstring new_dd = L"\\DosDevices\\?:";
        new_dd[12] = letters[sel];
 
        mm.delete_points(dd);
 
        try {
            mm.create_point(new_dd, dev_name);
        } catch (...) {
            // if fails, try to recreate old symlink, so we're not left with no drive letter at all
            mm.create_point(dd, dev_name);
            throw;
        }
    }
 
    EndDialog(hwndDlg, 1);
}

Referenced by DlgProc().

show()

void BtrfsChangeDriveLetter::show

(

)

Definition at line 1605 of file volpropsheet.cpp.

                                  {
    DialogBoxParamW(module, MAKEINTRESOURCEW(IDD_DRIVE_LETTER), hwnd, dlg_proc, (LPARAM)this);
}

Referenced by ShowChangeDriveLetterW().

Member Data Documentation

fn

wstring BtrfsChangeDriveLetter::fn

private

Definition at line 127 of file volpropsheet.h.

Referenced by do_change().

hwnd

HWND BtrfsChangeDriveLetter::hwnd

private

Definition at line 126 of file volpropsheet.h.

letters

vector<wchar_t> BtrfsChangeDriveLetter::letters

private

Definition at line 128 of file volpropsheet.h.

Referenced by DlgProc(), and do_change().

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The documentation for this class was generated from the following files:

• dll/shellext/shellbtrfs/volpropsheet.h
• dll/shellext/shellbtrfs/volpropsheet.cpp