// Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#pragma message(__FILE__ "(5) : This test code memory leaks on exit due to a bug in the code...fix when have time")

#include "THelpView.h"

// System includes

#include <coemain.h>

#include <eikenv.h>

#include <techview/eikrted.h>

#include <techview/eikmenup.h>

#include <techview/eikchlst.h>

#include <techview/eikon.hrh>

#include <techview/eiksbfrm.h>

#include <eikstart.h>

#include <txtrich.h>

#include "hlpmodel.h"

#include <thelpview.rsg>

// User includes

#include "thelpviewctrls.h"

#include "THelpView.hrh"

// Constants

const TInt KSizeSearchPromptIndent = 5;

const TInt KSizeSearchPromptHeight = 25;

const TInt KResultsViewWidth = 150;

// Panic enum

enum THlpViewerPanic

	{

	EHlpViewPanicNoSearchSpec

	};

//

// ----> Global functions / Entry points (source)

//

LOCAL_C CApaApplication* NewApplication()

// Ordinal 1 export for App Dll's

	{

	return new CHlpApplication();

	}

GLDEF_C TInt E32Main()

	{

	return EikStart::RunApplication(NewApplication);

	}

void Panic(THlpViewerPanic aPanic)

	{

	_LIT(KHlpViewPanicCategory, "HlpView");

	User::Panic(KHlpViewPanicCategory, aPanic);

	}

//

// ----> CHlpApplication (source)

//

TUid CHlpApplication::AppDllUid() const

	{

	return KUidHelpViewApp;

	}

CApaDocument* CHlpApplication::CreateDocumentL()

	{

	CHlpDocument* document = new(ELeave) CHlpDocument(*this);

	CleanupStack::PushL(document);

	document->NewDocumentL();

	CleanupStack::Pop();

	return document;

	}

//

// ----> CHlpAppUi (source)

//

CHlpDocument::CHlpDocument(CEikApplication& aApp)

:	CEikDocument(aApp)

	{

	}

CHlpDocument::~CHlpDocument()

	{

	delete iModel;

	}

CEikAppUi* CHlpDocument::CreateAppUiL()

	{

    return(new(ELeave) CHlpAppUi());

	}

void CHlpDocument::NewDocumentL()

	{

	CHlpModel* model = CHlpModel::NewL(Process()->FsSession(), NULL);

	CleanupStack::PushL(model);

	model->OpenL();

	delete iModel;

	iModel = model;

	CleanupStack::Pop(); // model

	}

//

// ----> CHlpAppUi (source)

//

CHlpAppUi::~CHlpAppUi()

	{

	CCoeAppUi::RemoveFromStack(iView);

	delete iView;

	}

void CHlpAppUi::ConstructL()

	{

    BaseConstructL();

	iView = new(ELeave) CHlpMainView(*this, Document().Model());

	iView->ConstructL();

	iView->SetRect(ClientRect());

	AddToStackL(iView);

	}

//

// FROM CEikAppUi

//

void CHlpAppUi::HandleCommandL(TInt aCommand)

	{

	switch (aCommand)

		{

	case EEikCmdExit: 

		Exit();

		break;

	case EHlpCmdSearch:

		iView->ShowSearchPrompt(ETrue);

		break;

	case EHlpCmdSearchDone:

		iView->MakeResultsVisible(EFalse);

		break;

	case EEikCmdZoomIn:

	case EEikCmdZoomOut:

		HandleZoomL(aCommand);	

		break;

	default:

		User::Leave(KErrNotSupported);

		break;

		}

	}

void CHlpAppUi::DynInitMenuPaneL(TInt aMenuId, CEikMenuPane* aMenuPane)

	{

	switch (aMenuId)

		{

	case R_HELPVIEW_TOOLS_MENU:

		aMenuPane->SetItemDimmed(EHlpCmdSearchDone, !iView->IsSearchResultVisible());

		break;

		}

	}

//

// NEW

//

void CHlpAppUi::HandleZoomL(TInt aZoomEvent)

	{

	if	(!iZoomHandler)

		return;

	iZoomHandler->HandleZoomEventL(STATIC_CAST(MZoomableControl::TZoomEvent, aZoomEvent));

	}

//

// ----> CHlpView (source)

//

CHlpView::CHlpView(CHlpAppUi& aAppUi, CHlpModel& aModel)

:	iAppUi(aAppUi), iHelpModel(aModel), iCurrentZoom(EZoomStateTwo)

	{

	}

CHlpView::~CHlpView()

	{

	delete iHelpCategories;

	delete iHelpTopicsForCategory;

	delete iRichTextEditor;

	delete iCurrentTopics;

	delete iLastTopic;

	// Remove this when the memory leak is finished...

	iCoeEnv->DisableExitChecks(ETrue);

	}

void CHlpView::ConstructL()

	{

	iLastTopic = CHlpTopic::NewL();

	iZoom.SetGraphicsDeviceMap(iCoeEnv->ScreenDevice());

	iHelpModel.SetObserver(this);

	iHelpCategories = new(ELeave) CEikChoiceList();

	iHelpCategories->SetContainerWindowL(*this);

	iHelpCategories->SetFocus(ETrue);

	iHelpCategories->SetObserver(this);

	iHelpTopicsForCategory = new(ELeave) CEikChoiceList();

	iHelpTopicsForCategory->SetContainerWindowL(*this);

	iHelpTopicsForCategory->SetObserver(this);

	iRichTextEditor = new(ELeave) CEikRichTextEditor();

	iRichTextEditor->SetContainerWindowL(*this);

	iRichTextEditor->ConstructL(this, 6, 100000, CEikEdwin::EWidthInPixels | CEikEdwin::EReadOnly | CEikEdwin::ENoAutoSelection | CEikEdwin::EKeepDocument);

	iRichTextEditor->SetZoomFactorL(&iZoom);

	iRichTextEditor->CreateTextViewL();

	iRichTextEditor->CreateScrollBarFrameL()->SetScrollBarVisibilityL(CEikScrollBarFrame::EOff, CEikScrollBarFrame::EAuto);

	iRichTextEditor->SetObserver(this);

	HandleZoomEventL(EEventZoomDefault);

	PopulateCategoryListL();

	iHelpModel.SetZoomFactors(EHlpZoomStateSmall, 750);

	iHelpModel.SetZoomFactors(EHlpZoomStateMedium, 1000);

	iHelpModel.SetZoomFactors(EHlpZoomStateLarge, 1250);

	}

//

// NEW

//

void CHlpView::PopulateCategoryListL()

	{

	// First get a category listing, then get the list of topics

	// for each specified category.

	// Get and print the category listing

	CDesCArrayFlat* array = new(ELeave) CDesCArrayFlat(5);

	CleanupStack::PushL(array);

	iHelpModel.CategoryListL(array);

	if	(!array->Count())

		User::Leave(KErrArgument); // ??

	iHelpCategories->SetArrayExternalOwnership(EFalse);

	iHelpCategories->SetArrayL(array);

	iHelpCategories->SetArrayExternalOwnership(EFalse);

	iHelpCategories->SetCurrentItem(0);

	PopulateTopicListL(iHelpCategories->Array()->MdcaPoint(iHelpCategories->CurrentItem()));

	CleanupStack::Pop();

	}

void CHlpView::PopulateTopicListL(const TDesC& aTopic)

	{

	iHelpModel.SearchL(ETopicListForCategory, aTopic);

	CHlpList* list = CHlpList::NewLC();

	iHelpModel.LoadListL(list);

	iHelpTopicsForCategory->SetArrayL(list); // Derrives from MDesCArray so we can do this

	delete iCurrentTopics;

	iCurrentTopics = list;

	iHelpTopicsForCategory->SetArrayExternalOwnership(ETrue); // owned by this class

	CleanupStack::Pop(); // list

	if	(list->MdcaCount())

		{

		UpdateEdwinL(*list->Item(0));

		iHelpTopicsForCategory->SetCurrentItem(0);

		iHelpTopicsForCategory->DrawNow();

		}

	}

void CHlpView::UpdateEdwinL(const CHlpItem& aItem)

//

//	Extract the rich text from the help file and display it in the

//	read only edit window.

//

	{

	// Search for a specific topic.

	iHelpModel.TopicSearchL(aItem);

	if	(iLastResponseFromHelpModel == ETopicAvailable)

		{

		CHlpTopic* topic = CHlpTopic::NewLC();

		iHelpModel.LoadTopicL(topic);

		iRichTextEditor->SetDocumentContentL(*topic->TopicText(), CEikEdwin::EUseText);

		iRichTextEditor->NotifyNewFormatL();

		iRichTextEditor->TextView()->SetViewLineAtTopL(1);

		iRichTextEditor->UpdateScrollBarsL();

		delete iLastTopic;

		iLastTopic = topic;

		CleanupStack::Pop(); // topic

		}

	else

		iEikonEnv->InfoMsg(R_HELPVIEW_TEXT_NO_TOPIC_FOR_ID);

	}

//

// FROM MZoomableControl

//

void CHlpView::HandleZoomEventL(TZoomEvent aEvent)

	{

	switch(aEvent)

		{

	case EEventZoomIn:

		if	(++iCurrentZoom>=KNumberOfZoomStates)

			iCurrentZoom = 0;

		break;

	case EEventZoomOut:

		if	(--iCurrentZoom < 0)

			iCurrentZoom = KNumberOfZoomStates-1;

		break;

	case EEventZoomDefault:

		iCurrentZoom = 1;

		break;

	default:

		User::Leave(KErrNotSupported);

		}

	// Select bitmap zoom size in the 'hlpmodel', according to the value of 'iCurrentZoom'

	switch (iCurrentZoom)

		{

	case 0:

		iHelpModel.SetZoomSizeL(EHlpZoomStateSmall);

		break;

	default:

	case 1:

		iHelpModel.SetZoomSizeL(EHlpZoomStateMedium);

		break;

	case 2:

		iHelpModel.SetZoomSizeL(EHlpZoomStateLarge);

		break;

		}

	iZoom.SetZoomFactor(ZoomForIndex(iCurrentZoom));

	iRichTextEditor->NotifyNewFormatL();

	iRichTextEditor->UpdateScrollBarsL();

	iRichTextEditor->DrawNow();

	}

TInt CHlpView::ZoomForIndex(TInt aIndex)

	{

	switch(aIndex)

		{

	case 0:

		return EZoomStateOne;

	default:

	case 1:

		return EZoomStateTwo;

	case 2:

		return EZoomStateThree;

		}

	}

//

// FROM CCoeControl

//

void CHlpView::SizeChanged()

	{

	const TInt KKludgeFactor = 4;

	TRect rect(Position(), Rect().Size());

	TSize choiceListSize = iHelpCategories->MinimumSize() + TSize(0, KKludgeFactor);

	TPoint topLeft(rect.iTl);

	iHelpCategories->SetExtent(topLeft, TSize(rect.Width()/2, choiceListSize.iHeight));

	iHelpTopicsForCategory->SetExtent(TPoint(rect.Size().iWidth/2,topLeft.iY), TSize(rect.Size().iWidth/2, choiceListSize.iHeight));

	iRichTextEditor->SetRect(TRect(TPoint(topLeft.iX, choiceListSize.iHeight), rect.iBr));

	}

TInt CHlpView::CountComponentControls() const

	{

	return 3;

	}

CCoeControl* CHlpView::ComponentControl(TInt aIndex) const

	{

	switch (aIndex)

		{

	default:

	case 0:

		return iHelpCategories;

	case 1:

		return iHelpTopicsForCategory;

	case 2:

		return iRichTextEditor;

		}

	}

TKeyResponse CHlpView::OfferKeyEventL(const TKeyEvent& aKeyEvent,TEventCode aType)

	{

	return iRichTextEditor->OfferKeyEventL(aKeyEvent, aType);

	}

//

// FROM MCoeControlObserver

//

void CHlpView::HandleControlEventL(CCoeControl* aControl, TCoeEvent aEventType)

	{

	if	(aEventType == EEventRequestFocus)

		{

		if	(iFocusedControl)

			{

			iFocusedControl->PrepareForFocusLossL();

			iFocusedControl->SetFocus(EFalse);

			}

		iFocusedControl = aControl;

		iFocusedControl->SetFocus(ETrue);

		}

	else if	(aControl == iHelpCategories && aEventType == EEventStateChanged)

		{

		// Update the list of topics available for this category

		PopulateTopicListL(iHelpCategories->Array()->MdcaPoint(iHelpCategories->CurrentItem()));

		}

	else if	(aControl == iHelpTopicsForCategory && aEventType == EEventStateChanged)

		{

		// Update the edwin contents

		UpdateEdwinL(*iCurrentTopics->Item(iHelpTopicsForCategory->CurrentItem()));

		}

	}

//

// FROM MHlpModelObserver

//

void CHlpView::HandleModelEventL(TInt aEvent)

	{

	iLastResponseFromHelpModel = aEvent;

	}

//

// ----> CHlpMainView (source)

//

CHlpMainView::CHlpMainView(CHlpAppUi& aAppUi, CHlpModel& aModel)

:	iAppUi(aAppUi), iModel(aModel)

	{

	}

CHlpMainView::~CHlpMainView()

	{

	delete iSearchResults;

	delete iSearchPrompt;

	delete iView;

	}

void CHlpMainView::ConstructL()

	{

	CreateWindowL();

	iView = new(ELeave) CHlpView(iAppUi, iModel);

	iView->SetContainerWindowL(*this);

	iView->ConstructL();

	iAppUi.SetZoomHandler(iView);

	iSearchPrompt = new(ELeave) CHlpSearchPrompt();

	iSearchPrompt->ConstructL(*this);

	iSearchPrompt->SetObserver(this);

	iSearchPrompt->MakeVisible(EFalse);

	iSearchResults = new(ELeave) CHlpListBox();

	iSearchResults->ConstructL(*this);

	iSearchResults->SetObserver(this);

	iSearchResults->MakeVisible(EFalse);

	iView->SetFocus(ETrue);

	ActivateL();

	}

//

// ACCESS

//

TBool CHlpMainView::IsSearchPromptVisible() const

	{

	return iSearchPrompt->IsVisible();

	}

TBool CHlpMainView::IsSearchResultVisible() const

	{

	return iSearchResults->IsVisible();

	}

void CHlpMainView::ShowSearchPrompt(TBool aShow)

	{

	iSearchPrompt->MakeVisible(aShow);

	}

void CHlpMainView::MakeResultsVisible(TBool aVisible)

	{

	TRect rect(Rect());