/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <sal/macros.h>
#include <sal/log.hxx>

#include <unotools/moduleoptions.hxx>
#include <unotools/dynamicmenuoptions.hxx>

#undef WB_LEFT
#undef WB_RIGHT

#include "shutdownicon.hxx"
#include <sfx2/sfxresid.hxx>
#include <sfx2/strings.hrc>
#include <shlobj.h>
#include <objidl.h>
#include <osl/diagnose.h>
#include <osl/thread.h>
#include <systools/win32/qswin32.h>
#include <comphelper/sequenceashashmap.hxx>
#include <comphelper/windowserrorstring.hxx>
#include <o3tl/char16_t2wchar_t.hxx>

#include <set>


#define EXECUTER_WINDOWCLASS    L"SO Executer Class"
#define EXECUTER_WINDOWNAME     L"SO Executer Window"


#define ID_QUICKSTART               1
#define IDM_EXIT                    2
#define IDM_OPEN                    3
#define IDM_WRITER                  4
#define IDM_CALC                    5
#define IDM_IMPRESS                 6
#define IDM_DRAW                    7
#define IDM_BASE                    8
#define IDM_TEMPLATE                9
#define IDM_MATH                    12
#define IDM_INSTALL                 10
#define IDM_STARTCENTER             14


#define ICON_LO_DEFAULT                 1
#define ICON_TEXT_DOCUMENT              2
#define ICON_SPREADSHEET_DOCUMENT       4
#define ICON_DRAWING_DOCUMENT           6
#define ICON_PRESENTATION_DOCUMENT      8
#define ICON_TEMPLATE                   11
#define ICON_DATABASE_DOCUMENT          12
#define ICON_MATH_DOCUMENT              13
#define ICON_OPEN                       5   // See index of open folder icon in shell32.dll

#define SFX_TASKBAR_NOTIFICATION    WM_USER+1

static HWND  aListenerWindow = nullptr;
static HWND  aExecuterWindow = nullptr;
static HMENU popupMenu = nullptr;

static void OnMeasureItem(HWND hwnd, LPMEASUREITEMSTRUCT lpmis);
static void OnDrawItem(HWND hwnd, LPDRAWITEMSTRUCT lpdis);

namespace {

struct MYITEM
{
    OUString text;
    OUString module;
    UINT iconId;
};

}

static void addMenuItem( HMENU hMenu, UINT id, UINT iconId, const OUString& text, int& pos, bool bOwnerdraw, const OUString& module )
{
    MENUITEMINFOW mi = {};

    mi.cbSize = sizeof( mi );
    if( id == static_cast<UINT>( -1 ) )
    {
        mi.fMask=MIIM_FTYPE;
        mi.fType=MFT_SEPARATOR;
    }
    else
    {
        if( bOwnerdraw )
        {
            mi.fMask=MIIM_FTYPE | MIIM_STATE | MIIM_ID | MIIM_DATA;
            mi.fType=MFT_OWNERDRAW;

            MYITEM *pMyItem = new MYITEM;
            pMyItem->text = text;
            pMyItem->iconId = iconId;
            pMyItem->module = module;
            mi.dwItemData = reinterpret_cast<ULONG_PTR>(pMyItem);
        }
        else
        {
            mi.fMask=MIIM_STRING | MIIM_STATE | MIIM_ID;
            mi.dwTypeData = o3tl::toW(
                const_cast<sal_Unicode *>(text.getStr()));
            mi.cch = text.getLength();
        }

        mi.fState = MFS_ENABLED;
        mi.wID = id;
        if ( IDM_TEMPLATE == id )
            mi.fState |= MFS_DEFAULT;
    }

    InsertMenuItemW( hMenu, pos++, TRUE, &mi );
}


static HMENU createSystrayMenu( )
{
    SvtModuleOptions    aModuleOptions;

    HMENU hMenu = CreatePopupMenu();
    int pos=0;

    ShutdownIcon *pShutdownIcon = ShutdownIcon::getInstance();
    OSL_ENSURE( pShutdownIcon, "ShutdownIcon instance empty!");

    if( !pShutdownIcon )
        return nullptr;

    // collect the URLs of the entries in the File/New menu
    ::std::set< OUString > aFileNewAppsAvailable;
    std::vector< SvtDynMenuEntry > const aNewMenu = SvtDynamicMenuOptions::GetMenu( EDynamicMenuType::NewMenu );
    for ( SvtDynMenuEntry const & newMenuProp : aNewMenu )
    {
        if ( !newMenuProp.sURL.isEmpty() )
            aFileNewAppsAvailable.insert( newMenuProp.sURL );
    }

    // describe the menu entries for launching the applications
    struct MenuEntryDescriptor
    {
        SvtModuleOptions::EModule   eModuleIdentifier;
        UINT                        nMenuItemID;
        UINT                        nMenuIconID;
        OUString                    sURLDescription;
    } static constexpr aMenuItems[] =
    {
        { SvtModuleOptions::EModule::WRITER,    IDM_WRITER, ICON_TEXT_DOCUMENT,         WRITER_URL },
        { SvtModuleOptions::EModule::CALC,      IDM_CALC,   ICON_SPREADSHEET_DOCUMENT,  CALC_URL },
        { SvtModuleOptions::EModule::IMPRESS,   IDM_IMPRESS,ICON_PRESENTATION_DOCUMENT, IMPRESS_WIZARD_URL },
        { SvtModuleOptions::EModule::DRAW,      IDM_DRAW,   ICON_DRAWING_DOCUMENT,      DRAW_URL },
        { SvtModuleOptions::EModule::DATABASE,  IDM_BASE,   ICON_DATABASE_DOCUMENT,     BASE_URL },
        { SvtModuleOptions::EModule::MATH,      IDM_MATH,   ICON_MATH_DOCUMENT,         MATH_URL },
    };

    // insert the menu entries for launching the applications
    for (const auto& [eModuleIdentifier, nMenuItemID, nMenuIconID, sURL] : aMenuItems)
    {
        if ( !aModuleOptions.IsModuleInstalled( eModuleIdentifier ) )
            // the complete application is not even installed
            continue;

        if ( aFileNewAppsAvailable.find( sURL ) == aFileNewAppsAvailable.end() )
            // the application is installed, but the entry has been configured to *not* appear in the File/New
            // menu => also let not appear it in the quickstarter
            continue;

        addMenuItem( hMenu, nMenuItemID, nMenuIconID,
            ShutdownIcon::GetUrlDescription( sURL ), pos, true, "" );
    }


    // insert the remaining menu entries
    addMenuItem( hMenu, IDM_TEMPLATE, ICON_TEMPLATE,
        SfxResId( STR_QUICKSTART_FROMTEMPLATE ), pos, true, "");
    addMenuItem( hMenu, static_cast< UINT >( -1 ), 0, OUString(), pos, false, "" );
    addMenuItem( hMenu, IDM_OPEN,   ICON_OPEN, SfxResId(STR_QUICKSTART_FILEOPEN), pos, true, "SHELL32");
    addMenuItem( hMenu, static_cast< UINT >( -1 ), 0, OUString(), pos, false, "" );
    addMenuItem( hMenu, IDM_INSTALL,0, SfxResId(STR_QUICKSTART_PRELAUNCH), pos, false, "" );
    addMenuItem( hMenu, static_cast< UINT >( -1 ), 0, OUString(), pos, false, "" );
    addMenuItem( hMenu, IDM_EXIT,   0, SfxResId(STR_QUICKSTART_EXIT), pos, false, "" );

    // indicate status of autostart folder
    CheckMenuItem( hMenu, IDM_INSTALL, MF_BYCOMMAND | (ShutdownIcon::GetAutostart() ? MF_CHECKED : MF_UNCHECKED) );

    return hMenu;
}


static void deleteSystrayMenu( HMENU hMenu )
{
    if( !hMenu || !IsMenu( hMenu ))
        return;

    MENUITEMINFOW mi = {};
    mi.cbSize = sizeof( mi );
    mi.fMask = MIIM_DATA;

    for (UINT pos = 0; GetMenuItemInfoW(hMenu, pos, true, &mi); ++pos)
    {
        if (MYITEM* pMyItem = reinterpret_cast<MYITEM*>(mi.dwItemData))
            delete pMyItem;
        mi.fMask = MIIM_DATA;
    }
}


static void addTaskbarIcon( HWND hWnd )
{
    OUString strTip = SfxResId(STR_QUICKSTART_TIP);

    // add taskbar icon
    NOTIFYICONDATAW nid;
    nid.hIcon = static_cast<HICON>(LoadImageW( GetModuleHandleW( nullptr ), MAKEINTRESOURCEW( ICON_LO_DEFAULT ),
        IMAGE_ICON, GetSystemMetrics( SM_CXSMICON ), GetSystemMetrics( SM_CYSMICON ),
        LR_DEFAULTCOLOR | LR_SHARED ));

    wcsncpy( nid.szTip, o3tl::toW(strTip.getStr()), 64 );

    nid.cbSize              = sizeof(nid);
    nid.hWnd                = hWnd;
    nid.uID                 = ID_QUICKSTART;
    nid.uCallbackMessage    = SFX_TASKBAR_NOTIFICATION;
    nid.uFlags              = NIF_MESSAGE|NIF_TIP|NIF_ICON;

    Shell_NotifyIconW(NIM_ADD, &nid);
}


static LRESULT CALLBACK listenerWndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    static UINT s_uTaskbarRestart = 0;
    static UINT s_uMsgKillTray = 0;

    switch (uMsg)
    {
        case WM_NCCREATE:
            return TRUE;
        case WM_CREATE:
            {
                // request notification when taskbar is recreated
                // we then have to add our icon again
                s_uTaskbarRestart = RegisterWindowMessageW(L"TaskbarCreated");
                s_uMsgKillTray = RegisterWindowMessageW( SHUTDOWN_QUICKSTART_MESSAGE );

                // create the menu
                if( !popupMenu )
                    if( (popupMenu = createSystrayMenu( )) == nullptr )
                        return -1;

                // and the icon
                addTaskbarIcon( hWnd );

                // disable shutdown
                ShutdownIcon::getInstance()->SetVeto( true );
                ShutdownIcon::addTerminateListener();
            }
            return 0;

        case WM_MEASUREITEM:
            OnMeasureItem(hWnd, reinterpret_cast<LPMEASUREITEMSTRUCT>(lParam));
            return TRUE;

        case WM_DRAWITEM:
            OnDrawItem(hWnd, reinterpret_cast<LPDRAWITEMSTRUCT>(lParam));
            return TRUE;

        case SFX_TASKBAR_NOTIFICATION:
            switch( lParam )
            {
                case WM_LBUTTONDOWN:
                {
                    bool const ret = PostMessageW(aExecuterWindow, WM_COMMAND, IDM_STARTCENTER, reinterpret_cast<LPARAM>(hWnd));
                    SAL_WARN_IF(!ret, "sfx.appl", "ERROR: PostMessage() failed!");
                    break;
                }

                case WM_RBUTTONDOWN:
                {
                    POINT pt;
                    GetCursorPos(&pt);
                    SetForegroundWindow( hWnd );

                    // update status before showing menu, could have been changed from option page
                    CheckMenuItem( popupMenu, IDM_INSTALL, MF_BYCOMMAND| (ShutdownIcon::GetAutostart() ? MF_CHECKED : MF_UNCHECKED) );

                    EnableMenuItem( popupMenu, IDM_EXIT, MF_BYCOMMAND | (ShutdownIcon::bModalMode ? MF_GRAYED : MF_ENABLED) );
                    EnableMenuItem( popupMenu, IDM_OPEN, MF_BYCOMMAND | (ShutdownIcon::bModalMode ? MF_GRAYED : MF_ENABLED) );
                    EnableMenuItem( popupMenu, IDM_TEMPLATE, MF_BYCOMMAND | (ShutdownIcon::bModalMode ? MF_GRAYED : MF_ENABLED) );
                    int m = TrackPopupMenuEx( popupMenu, TPM_RETURNCMD|TPM_LEFTALIGN|TPM_RIGHTBUTTON,
                                              pt.x, pt.y, hWnd, nullptr );
                    bool const ret = PostMessageW( hWnd, 0, 0, 0 );
                    SAL_WARN_IF(!ret, "sfx.appl", "ERROR: PostMessage() failed!");
                    switch( m )
                    {
                        case IDM_OPEN:
                        case IDM_WRITER:
                        case IDM_CALC:
                        case IDM_IMPRESS:
                        case IDM_DRAW:
                        case IDM_TEMPLATE:
                        case IDM_BASE:
                        case IDM_MATH:
                            break;
                        case IDM_INSTALL:
                            CheckMenuItem( popupMenu, IDM_INSTALL, MF_BYCOMMAND| (ShutdownIcon::GetAutostart() ? MF_CHECKED : MF_UNCHECKED) );
                            break;
                        case IDM_EXIT:
                            // delete taskbar icon
                            NOTIFYICONDATAW nid;
                            nid.cbSize=sizeof(nid);
                            nid.hWnd = hWnd;
                            nid.uID = ID_QUICKSTART;
                            Shell_NotifyIconW(NIM_DELETE, &nid);
                            break;
                    }

                    bool const ret2 = PostMessageW(aExecuterWindow, WM_COMMAND, m, reinterpret_cast<LPARAM>(hWnd));
                    SAL_WARN_IF(!ret2, "sfx.appl", "ERROR: PostMessage() failed!");
                }
                break;
            }
            break;
        case WM_DESTROY:
            deleteSystrayMenu( popupMenu );
            // We don't need the Systray Thread anymore
            PostQuitMessage( 0 );
            return DefWindowProcW(hWnd, uMsg, wParam, lParam);
        default:
            if( uMsg == s_uTaskbarRestart )
            {
                // re-create taskbar icon
                addTaskbarIcon( hWnd );
            }
            else if ( uMsg == s_uMsgKillTray )
            {
                // delete taskbar icon
                NOTIFYICONDATAW nid;
                nid.cbSize=sizeof(nid);
                nid.hWnd = hWnd;
                nid.uID = ID_QUICKSTART;
                Shell_NotifyIconW(NIM_DELETE, &nid);

                bool const ret = PostMessageW(aExecuterWindow, WM_COMMAND, IDM_EXIT, reinterpret_cast<LPARAM>(hWnd));
                SAL_WARN_IF(!ret, "sfx.appl", "ERROR: PostMessage() failed!");
            }
            else
                return DefWindowProcW(hWnd, uMsg, wParam, lParam);
    }
    return 0;
}


static LRESULT CALLBACK executerWndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg)
    {
        case WM_NCCREATE:
            return TRUE;
        case WM_CREATE:
            return 0;

        case WM_COMMAND:
            switch( LOWORD(wParam) )
            {
                case IDM_OPEN:
                    if ( !ShutdownIcon::bModalMode )
                        ShutdownIcon::FileOpen();
                break;
                case IDM_WRITER:
                    ShutdownIcon::OpenURL( WRITER_URL, "_default" );
                break;
                case IDM_CALC:
                    ShutdownIcon::OpenURL( CALC_URL, "_default" );
                break;
                case IDM_IMPRESS:
                    ShutdownIcon::OpenURL( IMPRESS_WIZARD_URL, "_default" );
                break;
                case IDM_DRAW:
                    ShutdownIcon::OpenURL( DRAW_URL, "_default" );
                break;
                case IDM_BASE:
                    ShutdownIcon::OpenURL( BASE_URL, "_default" );
                break;
                case IDM_MATH:
                    ShutdownIcon::OpenURL( MATH_URL, "_default" );
                break;
                case IDM_STARTCENTER:
                    ShutdownIcon::OpenURL( STARTMODULE_URL, "_default" );
                break;
                case IDM_TEMPLATE:
                    if ( !ShutdownIcon::bModalMode )
                        ShutdownIcon::FromTemplate();
                break;
                case IDM_INSTALL:
                    ShutdownIcon::SetAutostart( !ShutdownIcon::GetAutostart() );
                    break;
                case IDM_EXIT:
                    // remove listener and
                    //  terminate office if running in background
                    if ( !ShutdownIcon::bModalMode )
                        ShutdownIcon::terminateDesktop();
                    break;
            }
            break;
        case WM_DESTROY:
        default:
            return DefWindowProcW(hWnd, uMsg, wParam, lParam);
    }
    return 0;
}


static unsigned __stdcall SystrayThread(void* /*lpParam*/)
{
    osl_setThreadName("SystrayThread");

    aListenerWindow = CreateWindowExW(0,
        QUICKSTART_CLASSNAME,        // registered class name
        QUICKSTART_WINDOWNAME,       // window name
        0,                           // window style
        CW_USEDEFAULT,               // horizontal position of window
        CW_USEDEFAULT,               // vertical position of window
        CW_USEDEFAULT,               // window width
        CW_USEDEFAULT,               // window height
        nullptr,                     // handle to parent or owner window
        nullptr,                     // menu handle or child identifier
        GetModuleHandleW( nullptr ), // handle to application instance
        nullptr                      // window-creation data
        );

    MSG msg;

    for (;;)
    {
        int const bRet = GetMessageW(&msg, nullptr, 0, 0);
        if (bRet == 0)
        {
            break;
        }
        if (-1 == bRet)
        {
            SAL_WARN("sfx.appl", "GetMessageW failed: " << WindowsErrorString(GetLastError()));
            return 1;
        }
        TranslateMessage( &msg );
        DispatchMessageW( &msg );
    }

    return msg.wParam; // Exit code of WM_QUIT
}


void win32_init_sys_tray()
{
    if ( ShutdownIcon::IsQuickstarterInstalled() )
    {
        WNDCLASSEXW listenerClass;
        listenerClass.cbSize        = sizeof(listenerClass);
        listenerClass.style         = 0;
        listenerClass.lpfnWndProc   = listenerWndProc;
        listenerClass.cbClsExtra    = 0;
        listenerClass.cbWndExtra    = 0;
        listenerClass.hInstance     = GetModuleHandleW( nullptr );
        listenerClass.hIcon         = nullptr;
        listenerClass.hCursor       = nullptr;
        listenerClass.hbrBackground = nullptr;
        listenerClass.lpszMenuName  = nullptr;
        listenerClass.lpszClassName = QUICKSTART_CLASSNAME;
        listenerClass.hIconSm       = nullptr;

        RegisterClassExW(&listenerClass);

        WNDCLASSEXW executerClass;
        executerClass.cbSize        = sizeof(executerClass);
        executerClass.style         = 0;
        executerClass.lpfnWndProc   = executerWndProc;
        executerClass.cbClsExtra    = 0;
        executerClass.cbWndExtra    = 0;
        executerClass.hInstance     = GetModuleHandleW( nullptr );
        executerClass.hIcon         = nullptr;
        executerClass.hCursor       = nullptr;
        executerClass.hbrBackground = nullptr;
        executerClass.lpszMenuName  = nullptr;
        executerClass.lpszClassName = EXECUTER_WINDOWCLASS;
        executerClass.hIconSm       = nullptr;

        RegisterClassExW( &executerClass );

        aExecuterWindow = CreateWindowExW(0,
            EXECUTER_WINDOWCLASS,        // registered class name
            EXECUTER_WINDOWNAME,         // window name
            0,                           // window style
            CW_USEDEFAULT,               // horizontal position of window
            CW_USEDEFAULT,               // vertical position of window
            CW_USEDEFAULT,               // window width
            CW_USEDEFAULT,               // window height
            nullptr,                     // handle to parent or owner window
            nullptr,                     // menu handle or child identifier
            GetModuleHandleW( nullptr ), // handle to application instance
            nullptr                      // window-creation data
            );

        CloseHandle(reinterpret_cast<HANDLE>(
            _beginthreadex(nullptr, 0, SystrayThread, nullptr, 0, nullptr)));
    }
}


void win32_shutdown_sys_tray()
{
    if ( ShutdownIcon::IsQuickstarterInstalled() )
    {
        if( IsWindow( aListenerWindow ) )
        {
            DestroyWindow( aListenerWindow );
            aListenerWindow = nullptr;
            DestroyWindow( aExecuterWindow );
            aExecuterWindow = nullptr;
        }
        UnregisterClassW( QUICKSTART_CLASSNAME, GetModuleHandleW( nullptr ) );
        UnregisterClassW( EXECUTER_WINDOWCLASS, GetModuleHandleW( nullptr ) );
    }
}


void OnMeasureItem(HWND hwnd, LPMEASUREITEMSTRUCT lpmis)
{
    MYITEM *pMyItem = reinterpret_cast<MYITEM *>(lpmis->itemData);
    HDC hdc = GetDC(hwnd);
    SIZE size;

    NONCLIENTMETRICSW ncm = {};
    ncm.cbSize = sizeof(ncm);

    SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, 0, &ncm, 0);

    // Assume every menu item can be default and printed bold
    ncm.lfMenuFont.lfWeight = FW_BOLD;

    HFONT hfntOld = static_cast<HFONT>(SelectObject(hdc, CreateFontIndirectW( &ncm.lfMenuFont )));

    GetTextExtentPoint32W(hdc, o3tl::toW(pMyItem->text.getStr()),
            pMyItem->text.getLength(), &size);

    lpmis->itemWidth = size.cx + 4 + GetSystemMetrics( SM_CXSMICON );
    lpmis->itemHeight = std::max<int>(size.cy, GetSystemMetrics( SM_CYSMICON ));
    lpmis->itemHeight += 4;

    DeleteObject( SelectObject(hdc, hfntOld) );
    ReleaseDC(hwnd, hdc);
}

void OnDrawItem(HWND /*hwnd*/, LPDRAWITEMSTRUCT lpdis)
{
    MYITEM *pMyItem = reinterpret_cast<MYITEM *>(lpdis->itemData);
    COLORREF clrPrevText, clrPrevBkgnd;
    HFONT hfntOld;
    HBRUSH hbrOld;
    int x, y;
    bool    fSelected = lpdis->itemState & ODS_SELECTED;
    bool    fDisabled = lpdis->itemState & (ODS_DISABLED | ODS_GRAYED);

    // Set the appropriate foreground and background colors.

    RECT aRect = lpdis->rcItem;

    clrPrevBkgnd = SetBkColor( lpdis->hDC, GetSysColor(COLOR_MENU) );

    if ( fDisabled )
        clrPrevText = SetTextColor( lpdis->hDC, GetSysColor( COLOR_GRAYTEXT ) );
    else
        clrPrevText = SetTextColor( lpdis->hDC, GetSysColor( fSelected ? COLOR_HIGHLIGHTTEXT : COLOR_MENUTEXT ) );

    if ( fSelected )
        clrPrevBkgnd = SetBkColor( lpdis->hDC, GetSysColor(COLOR_HIGHLIGHT) );
    else
        clrPrevBkgnd = SetBkColor( lpdis->hDC, GetSysColor(COLOR_MENU) );

    hbrOld = static_cast<HBRUSH>(SelectObject( lpdis->hDC, CreateSolidBrush( GetBkColor( lpdis->hDC ) ) ));

    // Fill background
    PatBlt(lpdis->hDC, aRect.left, aRect.top, aRect.right-aRect.left, aRect.bottom-aRect.top, PATCOPY);

    int height = aRect.bottom-aRect.top;

    x = aRect.left;
    y = aRect.top;

    int     cx = GetSystemMetrics( SM_CXSMICON );
    int     cy = GetSystemMetrics( SM_CYSMICON );
    HICON   hIcon( nullptr );
    HMODULE hModule( GetModuleHandleW( nullptr ) );

    if ( pMyItem->module.getLength() > 0 )
    {
        LPCWSTR pModuleName = o3tl::toW( pMyItem->module.getStr() );
        hModule = GetModuleHandleW( pModuleName );
        if ( hModule == nullptr )
        {
            hModule = LoadLibraryW(pModuleName);
        }
    }

    hIcon = static_cast<HICON>(LoadImageW( hModule, MAKEINTRESOURCEW( pMyItem->iconId ),
                                IMAGE_ICON, cx, cy,
                                LR_DEFAULTCOLOR | LR_SHARED ));


    HBRUSH hbrIcon = CreateSolidBrush( GetSysColor( COLOR_GRAYTEXT ) );

    DrawStateW( lpdis->hDC, hbrIcon, nullptr, reinterpret_cast<LPARAM>(hIcon), WPARAM(0), x, y+(height-cy)/2, 0, 0, DST_ICON | (fDisabled ? (fSelected ? DSS_MONO : DSS_DISABLED) : DSS_NORMAL) );

    DeleteObject( hbrIcon );

    x += cx + 4;    // space for icon
    aRect.left = x;

    NONCLIENTMETRICSW ncm = {};
    ncm.cbSize = sizeof(ncm);

    SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, 0, &ncm, 0);

    // Print default menu entry with bold font
    if ( lpdis->itemState & ODS_DEFAULT )
        ncm.lfMenuFont.lfWeight = FW_BOLD;

    hfntOld = static_cast<HFONT>(SelectObject(lpdis->hDC, CreateFontIndirectW( &ncm.lfMenuFont )));


    SIZE    size;
    GetTextExtentPointW( lpdis->hDC, o3tl::toW(pMyItem->text.getStr()), pMyItem->text.getLength(), &size );

    DrawStateW( lpdis->hDC, nullptr, nullptr, reinterpret_cast<LPARAM>(pMyItem->text.getStr()), WPARAM(0), aRect.left, aRect.top + (height - size.cy)/2, 0, 0, DST_TEXT | (fDisabled && !fSelected ? DSS_DISABLED : DSS_NORMAL) );

    // Restore the original font and colors.
    DeleteObject( SelectObject( lpdis->hDC, hbrOld ) );
    DeleteObject( SelectObject( lpdis->hDC, hfntOld) );
    SetTextColor(lpdis->hDC, clrPrevText);
    SetBkColor(lpdis->hDC, clrPrevBkgnd);
}


// code from setup2 project

static OUString SHGetSpecialFolder( int nFolderID )
{

    LPITEMIDLIST    pidl;
    HRESULT         hHdl = SHGetSpecialFolderLocation( nullptr, nFolderID, &pidl );
    OUString        aFolder;

    if( hHdl == NOERROR )
    {
        auto xFolder = std::make_unique<WCHAR[]>(16000);
        SHGetPathFromIDListW(pidl, xFolder.get());
        aFolder = o3tl::toU(xFolder.get());
    }

    return aFolder;
}

OUString ShutdownIcon::GetAutostartFolderNameW32()
{
    return SHGetSpecialFolder(CSIDL_STARTUP);
}

static HRESULT WINAPI SHCoCreateInstance( LPVOID lpszReserved, REFCLSID clsid, LPUNKNOWN pUnkUnknown, REFIID iid, LPVOID *ppv )
{
    HRESULT hResult = E_NOTIMPL;
    HMODULE hModShell = GetModuleHandleW( L"SHELL32" );

    if ( hModShell != nullptr )
    {
        typedef HRESULT (WINAPI *SHCoCreateInstance_PROC)( LPVOID lpszReserved, REFCLSID clsid, LPUNKNOWN pUnkUnknown, REFIID iid, LPVOID *ppv );

        SHCoCreateInstance_PROC lpfnSHCoCreateInstance = reinterpret_cast<SHCoCreateInstance_PROC>(GetProcAddress( hModShell, MAKEINTRESOURCEA(102) ));

        if ( lpfnSHCoCreateInstance )
            hResult = lpfnSHCoCreateInstance( lpszReserved, clsid, pUnkUnknown, iid, ppv );
    }
    return hResult;
}

static bool CreateShortcut( const OUString& rAbsObject, const OUString& rAbsObjectPath,
    const OUString& rAbsShortcut, const OUString& rDescription, const OUString& rParameter )
{
    HRESULT hres;
    IShellLinkW* psl;
    CLSID clsid_ShellLink = CLSID_ShellLink;
    CLSID clsid_IShellLink = IID_IShellLinkW;

    hres = CoCreateInstance( clsid_ShellLink, nullptr, CLSCTX_INPROC_SERVER,
                             clsid_IShellLink, reinterpret_cast<void**>(&psl) );
    if( FAILED(hres) )
        hres = SHCoCreateInstance( nullptr, clsid_ShellLink, nullptr, clsid_IShellLink, reinterpret_cast<void**>(&psl) );

    if( SUCCEEDED(hres) )
    {
        IPersistFile* ppf;
        psl->SetPath( o3tl::toW(rAbsObject.getStr()) );
        psl->SetWorkingDirectory( o3tl::toW(rAbsObjectPath.getStr()) );
        psl->SetDescription( o3tl::toW(rDescription.getStr()) );
        if( rParameter.getLength() )
            psl->SetArguments( o3tl::toW(rParameter.getStr()) );

        CLSID clsid_IPersistFile = IID_IPersistFile;
        hres = psl->QueryInterface( clsid_IPersistFile, reinterpret_cast<void**>(&ppf) );

        if( SUCCEEDED(hres) )
        {
            hres = ppf->Save( o3tl::toW(rAbsShortcut.getStr()), TRUE );
            ppf->Release();
        } else return false;
        psl->Release();
    } else return false;
    return true;
}


// install/uninstall

static bool FileExistsW( LPCWSTR lpPath )
{
    bool    bExists = false;
    WIN32_FIND_DATAW    aFindData;

    HANDLE  hFind = FindFirstFileW( lpPath, &aFindData );

    if ( INVALID_HANDLE_VALUE != hFind )
    {
        bExists = true;
        FindClose( hFind );
    }

    return bExists;
}

bool ShutdownIcon::IsQuickstarterInstalled()
{
    wchar_t aPath[_MAX_PATH];
    GetModuleFileNameW( nullptr, aPath, _MAX_PATH-1);

    OUString aOfficepath( o3tl::toU(aPath) );
    int i = aOfficepath.lastIndexOf('\\');
    if( i != -1 )
        aOfficepath = aOfficepath.copy(0, i);

    OUString quickstartExe(aOfficepath + "\\quickstart.exe");

    return FileExistsW( o3tl::toW(quickstartExe.getStr()) );
}

void ShutdownIcon::EnableAutostartW32( const OUString &aShortcut )
{
    wchar_t aPath[_MAX_PATH];
    GetModuleFileNameW( nullptr, aPath, _MAX_PATH-1);

    OUString aOfficepath( o3tl::toU(aPath) );
    int i = aOfficepath.lastIndexOf('\\');
    if( i != -1 )
        aOfficepath = aOfficepath.copy(0, i);

    OUString quickstartExe(aOfficepath + "\\quickstart.exe");

    CreateShortcut( quickstartExe, aOfficepath, aShortcut, OUString(), OUString() );
}


/* vim:set shiftwidth=4 softtabstop=4 expandtab: */