reactos/reactos/subsys/system/explorer/taskbar/startmenu.cpp

/*
 * Copyright 2003 Martin Fuchs
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */


 //
 // Explorer clone
 //
 // startmenu.cpp
 //
 // Explorer start menu
 //
 // Martin Fuchs, 19.08.2003
 //


#include "../utility/utility.h"

#include "../explorer.h"
#include "../globals.h"
#include "../externals.h"
#include "../explorer_intres.h"

#include "desktopbar.h"
#include "startmenu.h"
#include "../dialogs/searchprogram.h"


StartMenu::StartMenu(HWND hwnd)
 :	super(hwnd)
{
	_next_id = IDC_FIRST_MENU;
	_submenu_id = 0;
	_border_left = 0;
	_border_top = 0;
	_last_pos = WindowRect(hwnd).pos();
}

StartMenu::StartMenu(HWND hwnd, const StartMenuCreateInfo& create_info)
 :	super(hwnd),
	_create_info(create_info)
{
	for(StartMenuFolders::const_iterator it=create_info._folders.begin(); it!=create_info._folders.end(); ++it)
		if (*it)
			_dirs.push_back(ShellDirectory(Desktop(), *it, _hwnd));

	_next_id = IDC_FIRST_MENU;
	_submenu_id = 0;
	_border_left = 0;
	_border_top = create_info._border_top;
	_last_pos = WindowRect(hwnd).pos();
}

StartMenu::~StartMenu()
{
	SendParent(PM_STARTMENU_CLOSED);
}


 // We need this wrapper function for s_wcStartMenu, it calls the WIN32 API,
 // though static C++ initializers are not allowed for Winelib applications.
BtnWindowClass& StartMenu::GetWndClasss()
{
	static BtnWindowClass s_wcStartMenu(CLASSNAME_STARTMENU);

	return s_wcStartMenu;
}


Window::CREATORFUNC StartMenu::s_def_creator = STARTMENU_CREATOR(StartMenu);

HWND StartMenu::Create(int x, int y, const StartMenuFolders& folders, HWND hwndParent, LPCTSTR title, CREATORFUNC creator)
{
	UINT style, ex_style;
	int top_height;

	if (hwndParent) {
		style = WS_POPUP|WS_THICKFRAME|WS_CLIPCHILDREN|WS_VISIBLE;
		ex_style = 0;
		top_height = STARTMENU_TOP_BTN_SPACE;
	} else {
		style = WS_POPUP|WS_CAPTION|WS_SYSMENU|WS_CLIPCHILDREN|WS_VISIBLE;
		ex_style = WS_EX_TOOLWINDOW;
		top_height = 0;
	}

	RECT rect = {x, y, x+STARTMENU_WIDTH_MIN, y+top_height};	// start height before adding an menu button

	AdjustWindowRectEx(&rect, style, FALSE, ex_style);

	StartMenuCreateInfo create_info;

	create_info._folders = folders;
	create_info._border_top = top_height;
	create_info._creator = creator;

	if (title)
		create_info._title = title;

	HWND hwnd = Window::Create(creator, &create_info, ex_style, GetWndClasss(), title,
								style, rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top, hwndParent);

	 // make sure the window is not off the screen
	MoveVisible(hwnd);

	return hwnd;
}


LRESULT	StartMenu::Init(LPCREATESTRUCT pcs)
{
	try {
		AddEntries();

		if (super::Init(pcs))
			return 1;

		 // create buttons for registered entries in _entries
		for(ShellEntryMap::const_iterator it=_entries.begin(); it!=_entries.end(); ++it) {
			const StartMenuEntry& sme = it->second;
			bool hasSubmenu = false;

			for(ShellEntrySet::const_iterator it=sme._entries.begin(); it!=sme._entries.end(); ++it)
				if ((*it)->_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
					hasSubmenu = true;

			AddButton(sme._title, sme._hIcon, hasSubmenu, it->first);
		}

		if (!GetWindow(_hwnd, GW_CHILD))
			AddButton(ResString(IDS_EMPTY), 0, false, (UINT)-1, WS_VISIBLE|WS_CHILD|BS_OWNERDRAW|WS_DISABLED);
	} catch(COMException& e) {
		HandleException(e, pcs->hwndParent);	// destroys the start menu window while switching focus
	}

	return 0;
}

void StartMenu::AddEntries()
{
	for(StartMenuShellDirs::iterator it=_dirs.begin(); it!=_dirs.end(); ++it) {
		StartMenuDirectory& smd = *it;
		ShellDirectory& dir = smd._dir;

		if (!dir._scanned) {
			WaitCursor wait;

			dir.smart_scan();
		}

		AddShellEntries(dir, -1, smd._subfolders);
	}
}


void StartMenu::AddShellEntries(const ShellDirectory& dir, int max, bool subfolders)
{
	int cnt = 0;

	for(const Entry*entry=dir._down; entry; entry=entry->_next) {
		 // hide files like "desktop.ini"
		if (entry->_shell_attribs & SFGAO_HIDDEN)
		//not appropriate for drive roots: if (entry->_data.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN)
			continue;

		 // hide subfolders if requested
		if (!subfolders)
			if (entry->_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
				continue;

		 // only 'max' entries shall be added.
		if (++cnt == max)
			break;

		const ShellEntry* shell_entry = static_cast<const ShellEntry*>(entry);

		AddEntry(dir._folder, shell_entry);
	}
}


LRESULT StartMenu::WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam)
{
	switch(nmsg) {
	  case WM_PAINT:
		DrawFloatingButton(PaintCanvas(_hwnd));
		break;

	  case WM_SIZE:
		ResizeButtons(LOWORD(lparam)-_border_left);
		break;

	  case WM_MOVE: {
		POINTS& pos = MAKEPOINTS(lparam);

		 // move open submenus of floating menus
		if (_submenu) {
			int dx = pos.x - _last_pos.x;
			int dy = pos.y - _last_pos.y;

			if (dx || dy) {
				WindowRect rt(_submenu);
				SetWindowPos(_submenu, 0, rt.left+dx, rt.top+dy, 0, 0, SWP_NOSIZE|SWP_NOACTIVATE);
				//MoveVisible(_submenu);
			}
		}

		_last_pos.x = pos.x;
		_last_pos.y = pos.y;
		goto def;}

	  case WM_NCHITTEST: {
		LRESULT res = super::WndProc(nmsg, wparam, lparam);

		if (res>=HTSIZEFIRST && res<=HTSIZELAST)
			return HTCLIENT;	// disable window resizing

		return res;}

	  case WM_LBUTTONDOWN: {
		RECT rect;

		 // check mouse cursor for coordinates of floating button
		GetFloatingButonRect(&rect);

		if (PtInRect(&rect, Point(lparam))) {
			 // create a floating copy of the current start menu
 			WindowRect pos(_hwnd);

			///@todo do something similar to StartMenuRoot::TrackStartmenu() in order to automatically close submenus when clicking on the desktop background
			StartMenu::Create(pos.left+3, pos.bottom-3, _create_info._folders, 0, _create_info._title, _create_info._creator);
			CloseStartMenu();
		}
		break;}

	  case WM_SYSCOMMAND:
		if ((wparam&0xFFF0) == SC_SIZE)
			return 0;			// disable window resizing
		goto def;

	  case WM_ACTIVATEAPP:
		 // close start menu when activating another application
		if (!wparam)
			CloseStartMenu();
		break;	// don't call super::WndProc in case "this" has been deleted

	  case WM_CANCELMODE:
		CloseStartMenu();
		break;

	  case PM_STARTENTRY_FOCUSED: {	///@todo use TrackMouseEvent() and WM_MOUSEHOVER to wait a bit before opening submenus
		BOOL hasSubmenu = wparam;
		HWND hctrl = (HWND)lparam;

		 // automatically open submenus
		if (hasSubmenu) {
			UpdateWindow(_hwnd);	// draw focused button before waiting on submenu creation
			//SendMessage(_hwnd, WM_COMMAND, MAKEWPARAM(GetDlgCtrlID(hctrl),BN_CLICKED), (LPARAM)hctrl);
			Command(GetDlgCtrlID(hctrl), BN_CLICKED);
		} else {
			 // close any open submenu
			CloseOtherSubmenus(0);
		}
		break;}

	  case PM_STARTENTRY_LAUNCHED:
		if (GetWindowStyle(_hwnd) & WS_CAPTION)	// don't automatically close floating menus
			return 0;

		 // route message to the parent menu and close menus after launching an entry
		if (!SendParent(nmsg, wparam, lparam))
			DestroyWindow(_hwnd);
		return 1;	// signal that we have received and processed the message

	  case PM_STARTMENU_CLOSED:
		_submenu = 0;
		break;

	  default: def:
		return super::WndProc(nmsg, wparam, lparam);
	}

	return 0;
}


void StartMenu::DrawFloatingButton(HDC hdc)
{
	static ResIconEx floatingIcon(IDI_FLOATING, 8, 4);

	ClientRect clnt(_hwnd);

	DrawIconEx(hdc, clnt.right-12, 0, floatingIcon, 8, 4, 0, 0, DI_NORMAL);
}

void StartMenu::GetFloatingButonRect(LPRECT prect)
{
	GetClientRect(_hwnd, prect);

	prect->right -= 4;
	prect->left = prect->right - 8;
	prect->bottom = 4;
}


 // resize child button controls to accomodate for new window size
void StartMenu::ResizeButtons(int cx)
{
	HDWP hdwp = BeginDeferWindowPos(10);

	for(HWND ctrl=GetWindow(_hwnd,GW_CHILD); ctrl; ctrl=GetNextWindow(ctrl,GW_HWNDNEXT)) {
		ClientRect rt(ctrl);

		if (rt.right != cx) {
			int height = rt.bottom - rt.top;

			 // special handling for separator controls
			if (!height && (GetWindowStyle(ctrl)&SS_TYPEMASK)==SS_ETCHEDHORZ)
				height = 2;

			hdwp = DeferWindowPos(hdwp, ctrl, 0, 0, 0, cx, height, SWP_NOMOVE|SWP_NOZORDER|SWP_NOACTIVATE);
		}
	}

	EndDeferWindowPos(hdwp);
}


int StartMenu::Command(int id, int code)
{
	switch(id) {
	  case IDCANCEL:
		DestroyWindow(_hwnd);
		break;

	  default: {
		ShellEntryMap::iterator found = _entries.find(id);

		if (found != _entries.end()) {
			ActivateEntry(id, found->second._entries);
			break;
		}

		return super::Command(id, code);}
	}

	return 0;
}


StartMenuEntry& StartMenu::AddEntry(LPCTSTR title, HICON hIcon, UINT id)
{
	if (id == (UINT)-1)
		id = ++_next_id;

	StartMenuEntry& sme = _entries[id];

	sme._title = title;
	sme._hIcon = hIcon;

	return sme;
}

StartMenuEntry& StartMenu::AddEntry(const ShellFolder folder, const ShellEntry* entry)
{
	HICON hIcon = entry->_hIcon;

	if (entry->_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
		hIcon = SmallIcon(IDI_EXPLORER);

	const String& entry_name = folder.get_name(entry->_pidl);

	 // search for an already existing subdirectory entry with the same name
	for(ShellEntryMap::iterator it=_entries.begin(); it!=_entries.end(); ++it) {
		StartMenuEntry& sme = it->second;

		if (sme._title == entry_name)	///@todo speed up by using a map indexed by name
			for(ShellEntrySet::iterator it2=sme._entries.begin(); it2!=sme._entries.end(); ++it2) {
				if ((*it2)->_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
					 // merge the new shell entry with the existing of the same name
					sme._entries.insert(entry);
					return sme;
				}
			}
	}

	StartMenuEntry& sme = AddEntry(entry_name, hIcon);

	sme._entries.insert(entry);

	return sme;
}


void StartMenu::AddButton(LPCTSTR title, HICON hIcon, bool hasSubmenu, UINT id, DWORD style)
{
	WindowRect rect(_hwnd);
	ClientRect clnt(_hwnd);

	 // increase window height to make room for the new button
	rect.top -= STARTMENU_LINE_HEIGHT;

	 // move down if we are too high now
	if (rect.top < 0) {
		rect.top += STARTMENU_LINE_HEIGHT;
		rect.bottom += STARTMENU_LINE_HEIGHT;
	}

	 // widen window, if it is too small
	int text_width = StartMenuButton::GetTextWidth(title,_hwnd) + 16/*icon*/ + 10/*placeholder*/ + 16/*arrow*/;

	int cx = clnt.right - _border_left;
	if (text_width > cx)
		rect.right += text_width-cx;

	MoveWindow(_hwnd, rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top, TRUE);

	StartMenuCtrl(_hwnd, _border_left, clnt.bottom, rect.right-rect.left-_border_left,
					title, id, hIcon, hasSubmenu, style);
}

void StartMenu::AddSeparator()
{
	WindowRect rect(_hwnd);
	ClientRect clnt(_hwnd);

	 // increase window height to make room for the new separator
	rect.top -= STARTMENU_SEP_HEIGHT;

	 // move down if we are too high now
	if (rect.top < 0) {
		rect.top += STARTMENU_LINE_HEIGHT;
		rect.bottom += STARTMENU_LINE_HEIGHT;
	}

	MoveWindow(_hwnd, rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top, TRUE);

	StartMenuSeparator(_hwnd, _border_left, clnt.bottom, rect.right-rect.left-_border_left);
}


bool StartMenu::CloseOtherSubmenus(int id)
{
	if (_submenu) {
		if (IsWindow(_submenu)) {
			if (_submenu_id == id)
				return false;
			else {
				DestroyWindow(_submenu);
				_submenu_id = 0;
				// _submenu should be reset automatically by PM_STARTMENU_CLOSED, but safety first...
			}
		}

		_submenu = 0;
	}

	return true;
}


void StartMenu::CreateSubmenu(int id, LPCTSTR title, CREATORFUNC creator)
{
	CreateSubmenu(id, StartMenuFolders(), title, creator);
}

void StartMenu::CreateSubmenu(int id, int folder_id, LPCTSTR title, CREATORFUNC creator)
{
	try {
		SpecialFolderPath folder(folder_id, _hwnd);

		StartMenuFolders new_folders;
		new_folders.push_back(folder);

		CreateSubmenu(id, new_folders, title, creator);
	} catch(COMException&) {
		// ignore Exception and don't display anything
	}
}

void StartMenu::CreateSubmenu(int id, int folder_id1, int folder_id2, LPCTSTR title, CREATORFUNC creator)
{
	StartMenuFolders new_folders;

	try {
		new_folders.push_back(SpecialFolderPath(folder_id1, _hwnd));
	} catch(COMException&) {
	}

	try {
		new_folders.push_back(SpecialFolderPath(folder_id2, _hwnd));
	} catch(COMException&) {
	}

	if (!new_folders.empty())
		CreateSubmenu(id, new_folders, title, creator);
}

void StartMenu::CreateSubmenu(int id, const StartMenuFolders& new_folders, LPCTSTR title, CREATORFUNC creator)
{
	 // Only open one submenu at a time.
	if (!CloseOtherSubmenus(id))
		return;

	HWND btn = GetDlgItem(_hwnd, id);
	int x, y;

	if (btn) {
		WindowRect pos(btn);

		x = pos.right;	// Submenus should overlap their parent a bit.
		y = pos.top+STARTMENU_LINE_HEIGHT-_border_top;
	} else {
		WindowRect pos(_hwnd);

		x = pos.right;
		y = pos.top;
	}

	_submenu_id = id;
	_submenu = StartMenu::Create(x, y, new_folders, _hwnd, title, creator);
}


void StartMenu::ActivateEntry(int id, const ShellEntrySet& entries)
{
	StartMenuFolders new_folders;
	String title;

	for(ShellEntrySet::const_iterator it=entries.begin(); it!=entries.end(); ++it) {
		ShellEntry* entry = const_cast<ShellEntry*>(*it);

		if (entry->_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
			new_folders.push_back(entry->create_absolute_pidl());

			if (title.empty())
				title = entry->_display_name;
		} else {
			 // If the entry is no subdirectory, there can only be one shell entry.
			assert(entries.size()==1);

			entry->launch_entry(_hwnd);	///@todo launch in the background; specify correct HWND for error message box titles

			 // close start menus after launching the selected entry
			CloseStartMenu(id);

			 // we deleted 'this' - ensure we leave loop and function
			return;
		}
	}

	if (!new_folders.empty()) {
		 // Only open one submenu at a time.
		if (!CloseOtherSubmenus(id))
			return;

		CreateSubmenu(id, new_folders, title);
	}
}


 /// close all windows of the start menu popup
void StartMenu::CloseStartMenu(int id)
{
	if (!(GetWindowStyle(_hwnd) & WS_CAPTION)) {	// don't automatically close floating menus
		if (!SendParent(PM_STARTENTRY_LAUNCHED, id, (LPARAM)_hwnd))
			DestroyWindow(_hwnd);
	} else if (_submenu)	// instead close submenus of floating parent menus
		CloseSubmenus();
}


int StartMenuButton::GetTextWidth(LPCTSTR title, HWND hwnd)
{
	WindowCanvas canvas(hwnd);
	FontSelection font(canvas, GetStockFont(DEFAULT_GUI_FONT));

	RECT rect = {0, 0, 0, 0};
	DrawText(canvas, title, -1, &rect, DT_SINGLELINE|DT_NOPREFIX|DT_CALCRECT);

	return rect.right-rect.left;
}


LRESULT StartMenuButton::WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam)
{
	switch(nmsg) {
	  case WM_MOUSEMOVE:
		 // automatically set the focus to startmenu entries when moving the mouse over them		
		if (GetFocus()!=_hwnd && !(GetWindowStyle(_hwnd)&WS_DISABLED))
			SetFocus(_hwnd);
		break;

	  case WM_SETFOCUS:
		PostParent(PM_STARTENTRY_FOCUSED, _hasSubmenu, (LPARAM)_hwnd);
		goto def;

	  case WM_CANCELMODE:
		 // route WM_CANCELMODE to the startmenu window
		return SendParent(nmsg, wparam, lparam);

	  default: def:
		return super::WndProc(nmsg, wparam, lparam);
	}

	return 0;
}

void StartMenuButton::DrawItem(LPDRAWITEMSTRUCT dis)
{
	UINT style = DFCS_BUTTONPUSH;

	if (dis->itemState & ODS_DISABLED)
		style |= DFCS_INACTIVE;

	POINT iconPos = {dis->rcItem.left+2, (dis->rcItem.top+dis->rcItem.bottom-16)/2};
	RECT textRect = {dis->rcItem.left+16+4, dis->rcItem.top+2, dis->rcItem.right-4, dis->rcItem.bottom-4};

	if (dis->itemState & ODS_SELECTED) {
		style |= DFCS_PUSHED;
		++iconPos.x;		++iconPos.y;
		++textRect.left;	++textRect.top;
		++textRect.right;	++textRect.bottom;
	}

	int bk_color = COLOR_BTNFACE;
	int text_color = COLOR_BTNTEXT;

	if (dis->itemState & ODS_FOCUS) {
		bk_color = COLOR_HIGHLIGHT;
		text_color = COLOR_HIGHLIGHTTEXT;
	}

	HBRUSH bk_brush = GetSysColorBrush(bk_color);

	FillRect(dis->hDC, &dis->rcItem, bk_brush);
	DrawIconEx(dis->hDC, iconPos.x, iconPos.y, _hIcon, 16, 16, 0, bk_brush, DI_NORMAL);

	 // draw submenu arrow at the right
	if (_hasSubmenu) {
		static SmallIcon arrowIcon(IDI_ARROW);
		static SmallIcon selArrowIcon(IDI_ARROW_SELECTED);

		DrawIconEx(dis->hDC, dis->rcItem.right-16, iconPos.y,
					dis->itemState&ODS_FOCUS?selArrowIcon:arrowIcon, 16, 16, 0, bk_brush, DI_NORMAL);
	}

	TCHAR title[BUFFER_LEN];
	GetWindowText(_hwnd, title, BUFFER_LEN);

	BkMode bk_mode(dis->hDC, TRANSPARENT);

	if (dis->itemState & (ODS_DISABLED|ODS_GRAYED))
		DrawGrayText(dis, &textRect, title, DT_SINGLELINE|DT_NOPREFIX|DT_VCENTER);
	else {
		TextColor lcColor(dis->hDC, GetSysColor(text_color));
		DrawText(dis->hDC, title, -1, &textRect, DT_SINGLELINE|DT_NOPREFIX|DT_VCENTER);
	}
}


StartMenuRoot::StartMenuRoot(HWND hwnd)
 :	super(hwnd)
{
#ifndef __MINGW32__	// SHRestricted() missing in MinGW (as of 29.10.2003)
	if (!g_Globals._SHRestricted || !SHRestricted(REST_NOCOMMONGROUPS))
#endif
		try {
			 // insert directory "All Users\Start Menu"
			ShellDirectory cmn_startmenu(Desktop(), SpecialFolderPath(CSIDL_COMMON_STARTMENU, _hwnd), _hwnd);
			_dirs.push_back(StartMenuDirectory(cmn_startmenu, false));	// don't add subfolders
		} catch(COMException&) {
			// ignore exception and don't show additional shortcuts
		}

	try {
		 // insert directory "<user name>\Start Menu"
		ShellDirectory usr_startmenu(Desktop(), SpecialFolderPath(CSIDL_STARTMENU, _hwnd), _hwnd);
		_dirs.push_back(StartMenuDirectory(usr_startmenu, false));	// don't add subfolders
	} catch(COMException&) {
		// ignore exception and don't show additional shortcuts
	}

	 // read size of logo bitmap
	BITMAP bmp_hdr;
	GetObject(ResBitmap(IDB_LOGOV), sizeof(BITMAP), &bmp_hdr);
	_logo_size.cx = bmp_hdr.bmWidth;
	_logo_size.cy = bmp_hdr.bmHeight;

	_border_left = _logo_size.cx;
}


HWND StartMenuRoot::Create(HWND hwndDesktopBar)
{
	WindowRect pos(hwndDesktopBar);

	return Window::Create(WINDOW_CREATOR(StartMenuRoot), 0, GetWndClasss(), TITLE_STARTMENU,
							WS_POPUP|WS_THICKFRAME|WS_CLIPCHILDREN|WS_VISIBLE, pos.left, pos.top-4, STARTMENU_WIDTH_MIN, 4, hwndDesktopBar);
}


void StartMenuRoot::TrackStartmenu()
{
	MSG msg;
	HWND hwnd = _hwnd;

	while(IsWindow(hwnd)) {
		if (!GetMessage(&msg, 0, 0, 0)) {
			PostQuitMessage(msg.wParam);
			break;
		}

		 // Check for a mouse click on any window, which is not part of the start menu
		if (msg.message==WM_LBUTTONDOWN || msg.message==WM_MBUTTONDOWN || msg.message==WM_RBUTTONDOWN) {
			StartMenu* menu_wnd = NULL;

			for(HWND hwnd=msg.hwnd; hwnd; hwnd=GetParent(hwnd)) {
				menu_wnd = WINDOW_DYNAMIC_CAST(StartMenu, hwnd);

				if (menu_wnd)
					break;
			}

			if (!menu_wnd) {
				DestroyWindow(_hwnd);
				break;
			}
		}

		try {
			if (pretranslate_msg(&msg))
				continue;

			if (dispatch_dialog_msg(&msg))
				continue;

			TranslateMessage(&msg);

			try {
				DispatchMessage(&msg);
			} catch(COMException& e) {
				HandleException(e, _hwnd);
			}
		} catch(COMException& e) {
			HandleException(e, _hwnd);
		}
	}
}


LRESULT	StartMenuRoot::Init(LPCREATESTRUCT pcs)
{
	 // add buttons for entries in _entries
	if (super::Init(pcs))
		return 1;

	AddSeparator();


#ifdef __MINGW32__
	HKEY hkey, hkeyAdv;
	DWORD value, len;

	if (RegOpenKey(HKEY_CURRENT_USER, _T("Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer"), &hkey))
		hkey = 0;

	if (RegOpenKey(HKEY_CURRENT_USER, _T("Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Advanced"), &hkeyAdv))
		hkeyAdv = 0;

#define	IS_VALUE_ZERO(hk, name) \
	(!hk || (len=sizeof(value),RegQueryValueEx(hk, name, NULL, NULL, (LPBYTE)&value, &len) || !value))

#define	IS_VALUE_NOT_ZERO(hk, name) \
	(!hk || (len=sizeof(value),RegQueryValueEx(hk, name, NULL, NULL, (LPBYTE)&value, &len) || value>0))
#endif


	 // insert hard coded start entries
	AddButton(ResString(IDS_PROGRAMS),		0, true, IDC_PROGRAMS);

	AddButton(ResString(IDS_SEARCH_PRG),	0, false, IDC_SEARCH_PROGRAM);

	AddButton(ResString(IDS_DOCUMENTS),		0, true, IDC_DOCUMENTS);

#ifndef __MINGW32__	// SHRestricted() missing in MinGW (as of 29.10.2003)
	if (!g_Globals._SHRestricted || !SHRestricted(REST_NORECENTDOCSMENU))
#else
	if (IS_VALUE_ZERO(hkey, _T("NoRecentDocsMenu")))
#endif
		AddButton(ResString(IDS_RECENT),	0, true, IDC_RECENT);

	AddButton(ResString(IDS_FAVORITES),		0, true, IDC_FAVORITES);

	AddButton(ResString(IDS_SETTINGS),		0, true, IDC_SETTINGS);

	AddButton(ResString(IDS_BROWSE),		0, true, IDC_BROWSE);

#ifndef __MINGW32__	// SHRestricted() missing in MinGW (as of 29.10.2003)
	if (!g_Globals._SHRestricted || !SHRestricted(REST_NOFIND))
#else
	if (IS_VALUE_ZERO(hkey, _T("NoFind")))
#endif
		AddButton(ResString(IDS_SEARCH),	0, false, IDC_SEARCH);

#ifndef __MINGW32__	// SHRestricted() missing in MinGW (as of 29.10.2003)
	if (!g_Globals._SHRestricted || !SHRestricted(REST_HASFINDCOMPUTERS))
#endif
		AddButton(ResString(IDS_SEARCH_COMPUTER),0,false, IDC_SEARCH_COMPUTER);

	AddButton(ResString(IDS_START_HELP),	0, false, IDC_START_HELP);

#ifndef __MINGW32__	// SHRestricted() missing in MinGW (as of 29.10.2003)
	if (!g_Globals._SHRestricted || !SHRestricted(REST_NORUN))
#else
	if (IS_VALUE_ZERO(hkey, _T("NoRun")))
#endif
		AddButton(ResString(IDS_LAUNCH),	0, false, IDC_LAUNCH);


	AddSeparator();


#ifndef __MINGW32__	// SHRestricted() missing in MinGW (as of 29.10.2003)
	if (!g_Globals._SHRestricted || !SHRestricted(REST_NOCLOSE))
#else
	if (IS_VALUE_NOT_ZERO(hkeyAdv, _T("StartMenuLogoff")))
#endif
		AddButton(ResString(IDS_LOGOFF),	SmallIcon(IDI_LOGOFF), false, IDC_LOGOFF);


#ifndef __MINGW32__	// SHRestricted() missing in MinGW (as of 29.10.2003)
	if (!g_Globals._SHRestricted || SHRestricted(REST_STARTMENULOGOFF) != 1)
#else
	if (IS_VALUE_ZERO(hkey, _T("NoClose")))
#endif
		AddButton(ResString(IDS_SHUTDOWN),	SmallIcon(IDI_LOGOFF), false, IDC_SHUTDOWN);


#ifdef __MINGW32__
	RegCloseKey(hkeyAdv);
	RegCloseKey(hkey);
#endif

	return 0;
}


void StartMenuRoot::AddEntries()
{
	super::AddEntries();

	AddButton(ResString(IDS_EXPLORE),	SmallIcon(IDI_EXPLORER), false, IDC_EXPLORE);
}


LRESULT	StartMenuRoot::WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam)
{
	switch(nmsg) {
	  case WM_PAINT: {
		int clr_bits;
		{WindowCanvas dc(_hwnd); clr_bits=GetDeviceCaps(dc, BITSPIXEL);}
		bool logo256 = clr_bits<=8;

		PaintCanvas canvas(_hwnd);

		MemCanvas mem_dc;
		ResBitmap bmp(logo256? IDB_LOGOV256: IDB_LOGOV);
		BitmapSelection sel(mem_dc, bmp);

		ClientRect clnt(_hwnd);
		int h = min(_logo_size.cy, clnt.bottom);

		RECT rect = {0, 0, _logo_size.cx-1, clnt.bottom-h};
		HBRUSH hbr = CreateSolidBrush(logo256? RGB(166,202,240): RGB(255,255,255));	// same color as the background color in the logo bitmap
		FillRect(canvas, &rect, hbr);
		DeleteObject(hbr);
		//PatBlt(canvas, _logo_size.cx-1, 0, 1, clnt.bottom-h, WHITENESS);
		PatBlt(canvas, _logo_size.cx-1, 0, 1, clnt.bottom-h, WHITENESS);

		BitBlt(canvas, 0, clnt.bottom-h, _logo_size.cx, h, mem_dc, 0, 0, SRCCOPY);

		if (!logo256) {
			rect.left = rect.right++;
			rect.bottom = clnt.bottom;
			HBRUSH hbr_border = GetStockBrush(GRAY_BRUSH);	//CreateSolidBrush(RGB(71,88,85));
			FillRect(canvas, &rect, hbr_border);
			//DeleteObject(hbr_border);
		}
		break;}

	  default:
		return super::WndProc(nmsg, wparam, lparam);
	}

	return 0;
}


int StartMenuRoot::Command(int id, int code)
{
	switch(id) {
	  case IDC_PROGRAMS:
		CreateSubmenu(id, CSIDL_COMMON_PROGRAMS, CSIDL_PROGRAMS, ResString(IDS_PROGRAMS));
		break;

	  case IDC_SEARCH_PROGRAM:
		CloseStartMenu(id);
		Dialog::DoModal(IDD_SEARCH_PROGRAM, WINDOW_CREATOR(FindProgramDlg));
		break;

	  case IDC_EXPLORE:
		CloseStartMenu(id);
		explorer_show_frame(_hwnd, SW_SHOWNORMAL);
		break;

	  case IDC_LAUNCH: {
		HWND hwndDesktopBar = GetWindow(_hwnd, GW_OWNER);
		CloseStartMenu(id);
		ShowLaunchDialog(hwndDesktopBar);
		break;}

	  case IDC_DOCUMENTS:
		CreateSubmenu(id, CSIDL_PERSONAL, ResString(IDS_DOCUMENTS));
		break;

	  case IDC_RECENT:
		CreateSubmenu(id, CSIDL_RECENT, ResString(IDS_RECENT), STARTMENU_CREATOR(RecentStartMenu));
		break;

	  case IDC_FAVORITES:
		CreateSubmenu(id, CSIDL_FAVORITES, ResString(IDS_FAVORITES));
		break;

	  case IDC_BROWSE:
		CreateSubmenu(id, ResString(IDS_BROWSE), STARTMENU_CREATOR(BrowseMenu));
		break;

	  case IDC_SETTINGS:
		CreateSubmenu(id, ResString(IDS_SETTINGS), STARTMENU_CREATOR(SettingsMenu));
		break;

	  case IDC_SEARCH:
		ShowSearchDialog();
		break;

	  case IDC_SEARCH_COMPUTER:
		ShowSearchComputer();
		break;

	  case IDC_LOGOFF:
		/* The shell32 Dialog prompts about some system setting change. This is not what we want to display here.
		HWND hwndDesktopBar = GetWindow(_hwnd, GW_OWNER);
		CloseStartMenu(id);
		ShowRestartDialog(hwndDesktopBar, EWX_LOGOFF);*/
		DestroyWindow(GetParent(_hwnd));
		break;

	  case IDC_SHUTDOWN: {
		HWND hwndDesktopBar = GetWindow(_hwnd, GW_OWNER);
		CloseStartMenu(id);
		ShowExitWindowsDialog(hwndDesktopBar);
		break;}

	  default:
		return super::Command(id, code);
	}

	return 0;
}


void StartMenuRoot::ShowLaunchDialog(HWND hwndDesktopBar)
{
	 ///@todo All text phrases should be put into the resources.
	static LPCSTR szTitle = "Create New Task";
	static LPCSTR szText = "Type the name of a program, folder, document, or Internet resource, and Task Manager will open it for you.";

	static DynamicFct<RUNFILEDLG> RunFileDlg(TEXT("SHELL32"), 61);

	 // Show "Run..." dialog
	if (RunFileDlg) {
#define	W_VER_NT 0
		if ((HIWORD(GetVersion())>>14) == W_VER_NT) {
			WCHAR wTitle[40], wText[256];

			MultiByteToWideChar(CP_ACP, 0, szTitle, -1, wTitle, 40);
			MultiByteToWideChar(CP_ACP, 0, szText, -1, wText, 256);

			(*RunFileDlg)(hwndDesktopBar, 0, NULL, (LPCSTR)wTitle, (LPCSTR)wText, RFF_CALCDIRECTORY);
		}
		else
			(*RunFileDlg)(hwndDesktopBar, 0, NULL, szTitle, szText, RFF_CALCDIRECTORY);
	}
}

void StartMenuRoot::ShowExitWindowsDialog(HWND hwndOwner)
{
	static DynamicFct<EXITWINDOWSDLG> ExitWindowsDlg(TEXT("SHELL32"), 60);

	if (ExitWindowsDlg)
		(*ExitWindowsDlg)(hwndOwner);
}

void StartMenuRoot::ShowRestartDialog(HWND hwndOwner, UINT flags)
{
	static DynamicFct<RESTARTWINDOWSDLG> RestartDlg(TEXT("SHELL32"), 59);

	if (RestartDlg)
		(*RestartDlg)(hwndOwner, (LPWSTR)L"You selected <Log Off>.\n\n", flags);	///@todo ANSI string conversion if needed
}

void StartMenuRoot::ShowSearchDialog()
{
	static DynamicFct<SHFINDFILES> SHFindFiles(TEXT("SHELL32"), 90);

	if (SHFindFiles)
		(*SHFindFiles)(NULL, NULL);
}

void StartMenuRoot::ShowSearchComputer()
{
	static DynamicFct<SHFINDCOMPUTER> SHFindComputer(TEXT("SHELL32"), 91);

	if (SHFindComputer)
		(*SHFindComputer)(NULL, NULL);
}


void SettingsMenu::AddEntries()
{
	super::AddEntries();

#ifndef __MINGW32__	// SHRestricted() missing in MinGW (as of 29.10.2003)
	if (!g_Globals._SHRestricted || !SHRestricted(REST_NOCONTROLPANEL))
#endif
		AddButton(ResString(IDS_CONTROL_PANEL),	0, false, IDC_CONTROL_PANEL);

	AddButton(ResString(IDS_PRINTERS),		0, true, IDC_PRINTERS);
	AddButton(ResString(IDS_CONNECTIONS),	0, true, IDC_CONNECTIONS);
	AddButton(ResString(IDS_ADMIN),			0, true, IDC_ADMIN);

#ifndef __MINGW32__	// SHRestricted() missing in MinGW (as of 29.10.2003)
	if (!g_Globals._SHRestricted || !SHRestricted(REST_NOCONTROLPANEL))
#endif
		AddButton(ResString(IDS_SETTINGS_MENU),	0, true, IDC_SETTINGS_MENU);
}

int SettingsMenu::Command(int id, int code)
{
	switch(id) {
	  case IDC_SETTINGS_MENU:
		CreateSubmenu(id, CSIDL_CONTROLS, ResString(IDS_SETTINGS_MENU));
		break;

	  case IDC_PRINTERS:
		CreateSubmenu(id, CSIDL_PRINTERS, CSIDL_PRINTHOOD, ResString(IDS_PRINTERS));
		break;

	  case IDC_CONTROL_PANEL:
		CloseStartMenu(id);
		MainFrame::Create(TEXT("::{20D04FE0-3AEA-1069-A2D8-08002B30309D}\\::{21EC2020-3AEA-1069-A2DD-08002B30309D}"), FALSE);
		break;

	  case IDC_ADMIN:
		CreateSubmenu(id, CSIDL_COMMON_ADMINTOOLS, CSIDL_ADMINTOOLS, ResString(IDS_ADMIN));
		break;

	  case IDC_CONNECTIONS:
		CreateSubmenu(id, CSIDL_CONNECTIONS, ResString(IDS_CONNECTIONS));
		break;

	  default:
		return super::Command(id, code);
	}

	return 0;
}


void BrowseMenu::AddEntries()
{
	super::AddEntries();

#ifndef __MINGW32__	// SHRestricted() missing in MinGW (as of 29.10.2003)
	if (!g_Globals._SHRestricted || !SHRestricted(REST_NONETHOOD))	// or REST_NOENTIRENETWORK ?
#endif
		AddButton(ResString(IDS_NETWORK),	0, true, IDC_NETWORK);

	AddButton(ResString(IDS_DRIVES),	0, true, IDC_DRIVES);
}

int BrowseMenu::Command(int id, int code)
{
	switch(id) {
	  case IDC_NETWORK:
		CreateSubmenu(id, CSIDL_NETWORK, ResString(IDS_NETWORK));
		break;

	  case IDC_DRIVES:
		///@todo exclude removeable drives
		CreateSubmenu(id, CSIDL_DRIVES, ResString(IDS_DRIVES));
		break;

	  default:
		return super::Command(id, code);
	}

	return 0;
}


RecentStartMenu::RecentStartMenu(HWND hwnd, const StartMenuCreateInfo& create_info)
 :	super(hwnd, create_info)
{
}

void RecentStartMenu::AddEntries()
{
	for(StartMenuShellDirs::iterator it=_dirs.begin(); it!=_dirs.end(); ++it) {
		StartMenuDirectory& smd = *it;
		ShellDirectory& dir = smd._dir;

		if (!dir._scanned) {
			WaitCursor wait;

			dir.smart_scan();
		}

		dir.sort_directory(SORT_DATE);
		AddShellEntries(dir, 16, smd._subfolders);	///@todo read max. count of entries from registry
	}
}