/*
 * Copyright 2003-2004 Waldemar Kornewald. All rights reserved.
 * Copyright 2017 Haiku, Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 */


#include "DialUpView.h"
#include "DialUpAddon.h"

#include <cstring>
#include "InterfaceUtils.h"
#include "MessageDriverSettingsUtils.h"
#include "TextRequestDialog.h"

// built-in add-ons
#include "ConnectionOptionsAddon.h"
#include "GeneralAddon.h"
#include "IPCPAddon.h"
#include "PPPoEAddon.h"

#include <PPPInterface.h>
#include <settings_tools.h>
#include <TemplateList.h>

#include <Application.h>

#include <Alert.h>
#include <Button.h>
#include <MenuField.h>
#include <MenuItem.h>
#include <Messenger.h>
#include <PopUpMenu.h>
#include <LayoutBuilder.h>
#include <StringView.h>
#include <TabView.h>

#include <Directory.h>
#include <Entry.h>
#include <File.h>
#include <Path.h>


// message constants
static const uint32 kMsgCreateNew = 'NEWI';
static const uint32 kMsgFinishCreateNew = 'FNEW';
static const uint32 kMsgDeleteCurrent = 'DELI';
static const uint32 kMsgSelectInterface = 'SELI';
static const uint32 kMsgConnectButton = 'CONI';

// labels
static const char *kLabelInterface = "Interface: ";
static const char *kLabelInterfaceName = "Interface Name: ";
static const char *kLabelCreateNewInterface = "Create New Interface";
static const char *kLabelCreateNew = "Create New...";
static const char *kLabelDeleteCurrent = "Delete Current";
static const char *kLabelConnect = "Connect";
static const char *kLabelDisconnect = "Disconnect";
static const char *kLabelOK = "OK";

// connection status strings
static const char *kTextConnecting = "Connecting...";
static const char *kTextConnectionEstablished = "Connection established.";
static const char *kTextNotConnected = "Not connected.";
static const char *kTextDeviceUpFailed = "Failed to connect.";
static const char *kTextAuthenticating = "Authenticating...";
static const char *kTextAuthenticationFailed = "Authentication failed!";
static const char *kTextConnectionLost = "Connection lost!";
static const char *kTextCreationError = "Error creating interface!";
static const char *kTextNoInterfacesFound = "Please create a new interface...";
static const char *kTextChooseInterfaceName = "Please choose a new name for this "
											"interface.";

// error strings for alerts
static const char *kErrorTitle = "Error";
static const char *kErrorNoPPPStack = "Error: Could not access the PPP stack!";
static const char *kErrorInterfaceExists = "Error: An interface with this name "
										"already exists!";
static const char *kErrorLoadingFailed = "Error: Failed loading interface! The "
										"current settings will be deleted.";
static const char *kErrorSavingFailed = "Error: Failed saving interface settings!";


static
status_t
up_down_thread(void *data)
{
	static_cast<DialUpView*>(data)->UpDownThread();
	return B_OK;
}


DialUpView::DialUpView()
	: BView("DialUpView", 0),
	fListener(this),
	fUpDownThread(-1),
	fDriverSettings(NULL),
	fCurrentItem(NULL),
	fWatching(PPP_UNDEFINED_INTERFACE_ID),
	fKeepLabel(false)
{
	SetViewUIColor(B_PANEL_BACKGROUND_COLOR);

	// add messenger to us so add-ons can contact us
	BMessenger messenger(this);
	fAddons.AddMessenger(DUN_MESSENGER, messenger);

	// create pop-up with all interfaces and "New..."/"Delete current" items
	fInterfaceMenu = new BPopUpMenu(kLabelCreateNew);
	fMenuField = new BMenuField("Interfaces", kLabelInterface, fInterfaceMenu);

	fTabView = new BTabView("TabView", B_WIDTH_FROM_LABEL);
	BRect tabViewRect(fTabView->Bounds());
	fAddons.AddRect(DUN_TAB_VIEW_RECT, tabViewRect); // FIXME: remove

	fStringView = new BStringView("NoInterfacesFound",
		kTextNoInterfacesFound);
	fStringView->SetAlignment(B_ALIGN_CENTER);
	fStringView->Hide();
	fCreateNewButton = new BButton("CreateNewButton",
		kLabelCreateNewInterface, new BMessage(kMsgCreateNew));
	fCreateNewButton->Hide();

	fStatusView = new BStringView("StatusView", kTextNotConnected);

	fConnectButton = new BButton("ConnectButton", kLabelConnect,
		new BMessage(kMsgConnectButton));

	BLayoutBuilder::Group<>(this, B_VERTICAL)
		.Add(fMenuField)
		.Add(fTabView)
		.Add(fStringView)
		.Add(fCreateNewButton)
		.AddGroup(B_HORIZONTAL)
			.Add(fStatusView)
			.AddGlue()
			.Add(fConnectButton)
		.End()
	.End();

	// initialize
	LoadInterfaces();
	LoadAddons();
	CreateTabs();
	fCurrentItem = NULL;
		// reset, otherwise SelectInterface will not load the settings
	SelectInterface(0);
	UpdateControls();
}


DialUpView::~DialUpView()
{
	SaveSettingsToFile();

	int32 tmp;
	wait_for_thread(fUpDownThread, &tmp);

	// free known add-on types (these should free their known add-on types, etc.)
	DialUpAddon *addon;
	for(int32 index = 0;
			fAddons.FindPointer(DUN_DELETE_ON_QUIT, index,
				reinterpret_cast<void**>(&addon)) == B_OK;
			index++)
		delete addon;
}


void
DialUpView::AttachedToWindow()
{
	fInterfaceMenu->SetTargetForItems(this);
	fCreateNewButton->SetTarget(this);
	fConnectButton->SetTarget(this);

	if(fListener.InitCheck() != B_OK) {
		(new BAlert(kErrorTitle, kErrorNoPPPStack, kLabelOK,
			NULL, NULL, B_WIDTH_AS_USUAL, B_WARNING_ALERT))->Go(NULL);
		fConnectButton->Hide();
	}
}


void
DialUpView::MessageReceived(BMessage *message)
{
	switch(message->what) {
		case PPP_REPORT_MESSAGE:
			HandleReportMessage(message);
		break;

		// -------------------------------------------------
		case kMsgCreateNew: {
			(new TextRequestDialog(kLabelCreateNewInterface, kTextChooseInterfaceName,
					kLabelInterfaceName))->Go(
				new BInvoker(new BMessage(kMsgFinishCreateNew), this));
		} break;

		case kMsgFinishCreateNew: {
			int32 which;
			message->FindInt32("which", &which);
			const char *name = message->FindString("text");
			if(which == 1 && name && strlen(name) > 0)
				AddInterface(name, true);

			if(fCurrentItem)
				fCurrentItem->SetMarked(true);
		} break;
		// -------------------------------------------------

		case kMsgDeleteCurrent: {
			if(!fCurrentItem)
				return;

			fInterfaceMenu->RemoveItem(fCurrentItem);
			BDirectory settings, profile;
			GetPPPDirectories(&settings, &profile);
			BEntry entry;
			settings.FindEntry(fCurrentItem->Label(), &entry);
			entry.Remove();
			profile.FindEntry(fCurrentItem->Label(), &entry);
			entry.Remove();
			delete fCurrentItem;
			fCurrentItem = NULL;

			BMenuItem *marked = fInterfaceMenu->FindMarked();
			if(marked)
				marked->SetMarked(false);

			UpdateControls();
			SelectInterface(0);
				// this stops watching the deleted interface
		} break;

		case kMsgSelectInterface: {
			int32 index;
			message->FindInt32("index", &index);
			SelectInterface(index);
		} break;

		case kMsgConnectButton: {
			if(!fCurrentItem || fUpDownThread != -1)
				return;

			fUpDownThread = spawn_thread(up_down_thread, "up_down_thread",
				B_NORMAL_PRIORITY, this);
			resume_thread(fUpDownThread);
		} break;

		default:
			BView::MessageReceived(message);
	}
}


bool
DialUpView::SelectInterfaceNamed(const char *name)
{
	BMenuItem *item = fInterfaceMenu->FindItem(name);

	int32 index = fInterfaceMenu->IndexOf(item);
	if(!item || index >= CountInterfaces())
		return false;

	SelectInterface(index);

	return true;
}


bool
DialUpView::NeedsRequest() const
{
	return fGeneralAddon ? fGeneralAddon->NeedsAuthenticationRequest() : false;
}


BView*
DialUpView::StatusView() const
{
	return fStatusView;
}


BView*
DialUpView::ConnectButton() const
{
	return fConnectButton;
}


bool
DialUpView::LoadSettings(bool isNew)
{
	fSettings.MakeEmpty();
	fProfile.MakeEmpty();
	BMessage *settingsPointer = fCurrentItem ? &fSettings : NULL,
		*profilePointer = fCurrentItem ? &fProfile : NULL;

	if(fCurrentItem && !isNew) {
		BString name("pppidf/");
		name << fCurrentItem->Label();
		if(!ReadMessageDriverSettings(name.String(), &fSettings))
			return false;
		name = "pppidf/profile/";
		name << fCurrentItem->Label();
		if(!ReadMessageDriverSettings(name.String(), &fProfile))
			profilePointer = settingsPointer;
	}

	DialUpAddon *addon;
	for(int32 index = 0; fAddons.FindPointer(DUN_TAB_ADDON_TYPE, index,
			reinterpret_cast<void**>(&addon)) == B_OK; index++) {
		if(!addon)
			continue;

		if(!addon->LoadSettings(settingsPointer, profilePointer, isNew))
			return false;
	}

	// TODO: check if settings are valid

	return true;
}


void
DialUpView::IsModified(bool *settings, bool *profile)
{
	*settings = *profile = false;
	bool addonSettingsChanged, addonProfileChanged;
		// for current addon

	DialUpAddon *addon;
	for(int32 index = 0; fAddons.FindPointer(DUN_TAB_ADDON_TYPE, index,
			reinterpret_cast<void**>(&addon)) == B_OK; index++) {
		if(!addon)
			continue;

		addon->IsModified(&addonSettingsChanged, &addonProfileChanged);
		if(addonSettingsChanged)
			*settings = true;
		if(addonProfileChanged)
			*profile = true;
	}
}


bool
DialUpView::SaveSettings(BMessage *settings, BMessage *profile, bool saveTemporary)
{
	if(!fCurrentItem || !settings || !profile)
		return false;

	DialUpAddon *addon;
	TemplateList<DialUpAddon*> addons;
	for(int32 index = 0;
			fAddons.FindPointer(DUN_TAB_ADDON_TYPE, index,
				reinterpret_cast<void**>(&addon)) == B_OK; index++) {
		if(!addon)
			continue;

		int32 insertIndex = 0;
		for(; insertIndex < addons.CountItems(); insertIndex++)
			if(addons.ItemAt(insertIndex)->Priority() <= addon->Priority())
				break;

		addons.AddItem(addon, insertIndex);
	}

	settings->AddInt32("Interface", static_cast<int32>(fWatching));
	if(fCurrentItem)
		settings->AddString("InterfaceName", fCurrentItem->Label());

	for(int32 index = 0; index < addons.CountItems(); index++)
		if(!addons.ItemAt(index)->SaveSettings(settings, profile, saveTemporary))
			return false;

	return true;
}


bool
DialUpView::SaveSettingsToFile()
{
	bool settingsChanged, profileChanged;
	IsModified(&settingsChanged, &profileChanged);
	if(!settingsChanged && !profileChanged)
		return true;

	BMessage settings, profile;
	if(!SaveSettings(&settings, &profile, false))
		return false;

	BDirectory settingsDirectory;
	BDirectory profileDirectory;
	GetPPPDirectories(&settingsDirectory, &profileDirectory);
	if(settingsDirectory.InitCheck() != B_OK || profileDirectory.InitCheck() != B_OK)
		return false;

	BFile file;
	if(settingsChanged) {
		settingsDirectory.CreateFile(fCurrentItem->Label(), &file);
		WriteMessageDriverSettings(file, settings);
	}

	if(profileChanged) {
		profileDirectory.CreateFile(fCurrentItem->Label(), &file);
		WriteMessageDriverSettings(file, profile);
	}

	return true;
}


void
DialUpView::UpDownThread()
{
	SaveSettingsToFile();
	BMessage settings, profile;
	SaveSettings(&settings, &profile, true);
		// save temporary profile
	//driver_settings *temporaryProfile = MessageToDriverSettings(profile);

	PPPInterface interface;
	if (fWatching == PPP_UNDEFINED_INTERFACE_ID) {
		interface = fListener.Manager().InterfaceWithName(fCurrentItem->Label());
		if(interface.InitCheck() != B_OK)
			interface = fListener.Manager().CreateInterfaceWithName(
				fCurrentItem->Label());
	} else {
		interface = fWatching;
		//interface.SetProfile(temporaryProfile);
	}

	//free_driver_settings(temporaryProfile);

	if(interface.InitCheck() != B_OK) {
		Window()->Lock();
		fStatusView->SetText(kTextCreationError);
		Window()->Unlock();
		return;
	}

	ppp_interface_info_t info;
	interface.GetInterfaceInfo(&info);
	if(info.info.phase == PPP_DOWN_PHASE)
		interface.Up();
	else
		interface.Down();

	fUpDownThread = -1;
}


#define PPP_INTERFACE_SETTINGS_PATH "" // FIXME!
void
DialUpView::GetPPPDirectories(BDirectory *settingsDirectory,
	BDirectory *profileDirectory) const
{
	if(settingsDirectory) {
		BDirectory settings(PPP_INTERFACE_SETTINGS_PATH);
		if(settings.InitCheck() != B_OK) {
			create_directory(PPP_INTERFACE_SETTINGS_PATH, 0750);
			settings.SetTo(PPP_INTERFACE_SETTINGS_PATH);
		}

		*settingsDirectory = settings;
	}

	if(profileDirectory) {
		BDirectory profile(PPP_INTERFACE_SETTINGS_PATH "/profile");
		if(profile.InitCheck() != B_OK) {
			create_directory(PPP_INTERFACE_SETTINGS_PATH "/profile", 0750);
			profile.SetTo(PPP_INTERFACE_SETTINGS_PATH "/profile");
		}

		*profileDirectory = profile;
	}
}


void
DialUpView::HandleReportMessage(BMessage *message)
{
	thread_id sender;
	message->FindInt32("sender", &sender);

	send_data(sender, B_OK, NULL, 0);

	if(!fCurrentItem)
		return;

	ppp_interface_id id;
	if(message->FindInt32("interface", reinterpret_cast<int32*>(&id)) != B_OK
			|| (fWatching != PPP_UNDEFINED_INTERFACE_ID && id != fWatching))
		return;

	int32 type, code;
	message->FindInt32("type", &type);
	message->FindInt32("code", &code);

	if(type == PPP_MANAGER_REPORT && code == PPP_REPORT_INTERFACE_CREATED) {
		PPPInterface interface(id);
		if(interface.InitCheck() != B_OK)
			return;

		ppp_interface_info_t info;
		interface.GetInterfaceInfo(&info);
		if(strcasecmp(info.info.name, fCurrentItem->Label()))
			return;

		WatchInterface(id);
	} else if(type == PPP_CONNECTION_REPORT) {
		if(fWatching == PPP_UNDEFINED_INTERFACE_ID)
			return;

		UpdateStatus(code);
	} else if(type == PPP_DESTRUCTION_REPORT) {
		if(fWatching == PPP_UNDEFINED_INTERFACE_ID)
			return;

		WatchInterface(fListener.Manager().InterfaceWithName(fCurrentItem->Label()));
	}
}


void
DialUpView::CreateTabs()
{
	// create tabs for all registered and valid tab add-ons
	DialUpAddon *addon = NULL;
	BView *target = NULL;
	TemplateList<DialUpAddon*> addons;

	for (int32 index = 0;
			fAddons.FindPointer(DUN_TAB_ADDON_TYPE, index,
				reinterpret_cast<void**>(&addon)) == B_OK;
			index++) {
		if (!addon || addon->Position() < 0)
			continue;

		int32 insertIndex = 0;
		for(; insertIndex < addons.CountItems(); insertIndex++) {
			if (addons.ItemAt(insertIndex)->Position() > addon->Position())
				break;
		}

		addons.AddItem(addon, insertIndex);
	}

	for (int32 index = 0; index < addons.CountItems(); index++) {
		addon = addons.ItemAt(index);

		target = addon->CreateView();
		if (target == NULL)
			continue;

		fTabView->AddTab(target, NULL);
	}
}


void
DialUpView::UpdateStatus(int32 code)
{
	switch(code) {
		case PPP_REPORT_DEVICE_UP_FAILED:
		case PPP_REPORT_AUTHENTICATION_FAILED:
		case PPP_REPORT_DOWN_SUCCESSFUL:
		case PPP_REPORT_CONNECTION_LOST: {
			fConnectButton->SetLabel(kLabelConnect);
		} break;

		default:
			fConnectButton->SetLabel(kLabelDisconnect);
	}

	// maybe the status string must not be changed (codes that set fKeepLabel to false
	// should still be handled)
	if(fKeepLabel && code != PPP_REPORT_GOING_UP && code != PPP_REPORT_UP_SUCCESSFUL)
		return;

	if(fListener.InitCheck() != B_OK) {
		fStatusView->SetText(kErrorNoPPPStack);
		return;
	}

	// only errors should set fKeepLabel to true
	switch(code) {
		case PPP_REPORT_GOING_UP:
			fKeepLabel = false;
			fStatusView->SetText(kTextConnecting);
		break;

		case PPP_REPORT_UP_SUCCESSFUL:
			fKeepLabel = false;
			fStatusView->SetText(kTextConnectionEstablished);
		break;

		case PPP_REPORT_DOWN_SUCCESSFUL:
			fStatusView->SetText(kTextNotConnected);
		break;

		case PPP_REPORT_DEVICE_UP_FAILED:
			fKeepLabel = true;
			fStatusView->SetText(kTextDeviceUpFailed);
		break;

		case PPP_REPORT_AUTHENTICATION_REQUESTED:
			fStatusView->SetText(kTextAuthenticating);
		break;

		case PPP_REPORT_AUTHENTICATION_FAILED:
			fKeepLabel = true;
			fStatusView->SetText(kTextAuthenticationFailed);
		break;

		case PPP_REPORT_CONNECTION_LOST:
			fKeepLabel = true;
			fStatusView->SetText(kTextConnectionLost);
		break;
	}
}


void
DialUpView::WatchInterface(ppp_interface_id ID)
{
	// This method can be used to update the interface's connection status.

	if(fWatching != ID) {
		//fListener.StopWatchingInterfaces(); // FIXME

		if(ID == PPP_UNDEFINED_INTERFACE_ID || fListener.WatchInterface(ID))
			fWatching = ID;
	}

	// update status
	PPPInterface interface(fWatching);
	if(interface.InitCheck() != B_OK) {
		UpdateStatus(PPP_REPORT_DOWN_SUCCESSFUL);
		return;
	}

	ppp_interface_info_t info;
	interface.GetInterfaceInfo(&info);

	// transform phase into status
	switch(info.info.phase) {
		case PPP_DOWN_PHASE:
			UpdateStatus(PPP_REPORT_DOWN_SUCCESSFUL);
		break;

		case PPP_TERMINATION_PHASE:
		break;

		case PPP_ESTABLISHED_PHASE:
			UpdateStatus(PPP_REPORT_UP_SUCCESSFUL);
		break;

		default:
			UpdateStatus(PPP_REPORT_GOING_UP);
	}
}


void
DialUpView::LoadInterfaces()
{
	fInterfaceMenu->AddSeparatorItem();
	fInterfaceMenu->AddItem(new BMenuItem(kLabelCreateNewInterface,
		new BMessage(kMsgCreateNew)));
	fDeleterItem = new BMenuItem(kLabelDeleteCurrent,
		new BMessage(kMsgDeleteCurrent));
	fInterfaceMenu->AddItem(fDeleterItem);

	BDirectory settingsDirectory;
	BEntry entry;
	BPath path;
	GetPPPDirectories(&settingsDirectory, NULL);
	while(settingsDirectory.GetNextEntry(&entry) == B_OK) {
		if(entry.IsFile()) {
			entry.GetPath(&path);
			AddInterface(path.Leaf(), true);
		}
	}
}


void
DialUpView::LoadAddons()
{
	// Load integrated add-ons:
	// "Connection Options" tab
	ConnectionOptionsAddon *connectionOptionsAddon =
		new ConnectionOptionsAddon(&fAddons);
	fAddons.AddPointer(DUN_TAB_ADDON_TYPE, connectionOptionsAddon);
	fAddons.AddPointer(DUN_DELETE_ON_QUIT, connectionOptionsAddon);
	// "General" tab
	GeneralAddon *fGeneralAddon = new GeneralAddon(&fAddons);
	fAddons.AddPointer(DUN_TAB_ADDON_TYPE, fGeneralAddon);
	fAddons.AddPointer(DUN_DELETE_ON_QUIT, fGeneralAddon);

	// "IPCP" protocol
	IPCPAddon *ipcpAddon = new IPCPAddon(&fAddons);
	fAddons.AddPointer(DUN_TAB_ADDON_TYPE, ipcpAddon);
	fAddons.AddPointer(DUN_DELETE_ON_QUIT, ipcpAddon);
	// "PPPoE" device
	PPPoEAddon *pppoeAddon = new PPPoEAddon(&fAddons);
	fAddons.AddPointer(DUN_DEVICE_ADDON_TYPE, pppoeAddon);
	fAddons.AddPointer(DUN_DELETE_ON_QUIT, pppoeAddon);

	// "PAP" authenticator
	BMessage addon;
	addon.AddString("FriendlyName", "Plain-text Authentication");
	addon.AddString("TechnicalName", "PAP");
	addon.AddString("KernelModuleName", "pap");
	fAddons.AddMessage(DUN_AUTHENTICATOR_ADDON_TYPE, &addon);
	// addon.MakeEmpty(); // for next authenticator

	// TODO:
	// load all add-ons from the add-ons folder
}


void
DialUpView::AddInterface(const char *name, bool isNew)
{
	if(fInterfaceMenu->FindItem(name)) {
		(new BAlert(kErrorTitle, kErrorInterfaceExists, kLabelOK,
			NULL, NULL, B_WIDTH_AS_USUAL, B_WARNING_ALERT))->Go(NULL);
		return;
	}

	BMenuItem *item = new BMenuItem(name, new BMessage(kMsgSelectInterface));
	item->SetTarget(this);
	int32 index = FindNextMenuInsertionIndex(fInterfaceMenu, name);
	if(index > CountInterfaces())
		index = CountInterfaces();
	fInterfaceMenu->AddItem(item, index);
	UpdateControls();

	item->SetMarked(true);
	SelectInterface(index, isNew);
}


void
DialUpView::SelectInterface(int32 index, bool isNew)
{
	BMenuItem *item = fInterfaceMenu->FindMarked();
	if(fCurrentItem && item == fCurrentItem)
		return;

	if(fCurrentItem && !SaveSettingsToFile())
		(new BAlert(kErrorTitle, kErrorSavingFailed, kLabelOK,
			NULL, NULL, B_WIDTH_AS_USUAL, B_WARNING_ALERT))->Go(NULL);

	if(index >= CountInterfaces() || index < 0) {
		if(CountInterfaces() > 0)
			SelectInterface(0);
		else {
			fCurrentItem = NULL;
			WatchInterface(PPP_UNDEFINED_INTERFACE_ID);
		}
	} else {
		fCurrentItem = fInterfaceMenu->ItemAt(index);
		if(!fCurrentItem) {
			SelectInterface(0);
			return;
		}

		fCurrentItem->SetMarked(true);
		fDeleterItem->SetEnabled(true);
		WatchInterface(fListener.Manager().InterfaceWithName(fCurrentItem->Label()));
	}

	if(!fCurrentItem)
		LoadSettings(false);
			// tell modules to unload all settings
	else if(!isNew && !LoadSettings(false)) {
		(new BAlert(kErrorTitle, kErrorLoadingFailed, kLabelOK,
			NULL, NULL, B_WIDTH_AS_USUAL, B_WARNING_ALERT))->Go(NULL);
		LoadSettings(true);
	} else if(isNew && !LoadSettings(true))
		(new BAlert(kErrorTitle, kErrorLoadingFailed, kLabelOK,
			NULL, NULL, B_WIDTH_AS_USUAL, B_WARNING_ALERT))->Go(NULL);
}


int32
DialUpView::CountInterfaces() const
{
	return fInterfaceMenu->CountItems() - 3;
}


void
DialUpView::UpdateControls()
{
	if(fTabView->IsHidden() && CountInterfaces() > 0) {
		fInterfaceMenu->SetLabelFromMarked(true);
		fStringView->Hide();
		fCreateNewButton->Hide();
		fTabView->Show();
		fConnectButton->SetEnabled(true);
	} else if(!fTabView->IsHidden() && CountInterfaces() == 0) {
		fDeleterItem->SetEnabled(false);
		fInterfaceMenu->SetRadioMode(false);
		fInterfaceMenu->Superitem()->SetLabel(kLabelCreateNew);
		fTabView->Hide();
		fStringView->Show();
		fCreateNewButton->Show();
		fConnectButton->SetEnabled(false);
	}
}