/*

* Copyright (c) 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:

* Definition file for NotesCollectionView class.

*

*/

// System includes

#include <HbListWidget>

#include <QStandardItemModel>

#include <HbListView>

#include <HbAction>

#include <HbTextEdit>

#include <HbInstance>

#include <HbMainWindow>

#include <HbMenu>

#include <HbDialog>

#include <HbLabel>

#include <HbAbstractViewItem>

#include <HbGroupBox>

#include <HbStyleLoader>

// User includes

#include <agendautil.h>

#include "notescollectionview.h"

#include "notescommon.h"

#include "notesdocloader.h"

#include "notesmodel.h"

#include "noteseditor.h"

#include "notessortfilterproxymodel.h"

#include "OstTraceDefinitions.h"

#ifdef OST_TRACE_COMPILER_IN_USE

#include "notescollectionviewTraces.h"

#endif

/*!

	\class NotesCollectionView

	\brief The main view of the notes application. Responsible for displaying

			notes and todos.

	\sa NotesViewManager

 */

/*!

	Constructs the NotesCollectionView object.

	\param parent The parent of type QGraphicsWidget.

 */

NotesCollectionView::NotesCollectionView(QGraphicsWidget *parent)

:HbView(parent)

{

	OstTraceFunctionEntry0( NOTESCOLLECTIONVIEW_NOTESCOLLECTIONVIEW_ENTRY );

	// Nothing yet.

	OstTraceFunctionExit0( NOTESCOLLECTIONVIEW_NOTESCOLLECTIONVIEW_EXIT );

}

/*!

	Destructor.

 */

NotesCollectionView::~NotesCollectionView()

{

	OstTraceFunctionEntry0( DUP1_NOTESCOLLECTIONVIEW_NOTESCOLLECTIONVIEW_ENTRY );

	if (mDocLoader) {

		delete mDocLoader;

		mDocLoader = 0;

	}

	OstTraceFunctionExit0( DUP1_NOTESCOLLECTIONVIEW_NOTESCOLLECTIONVIEW_EXIT );

}

/*!

	Called by the NotesViewManager after loading the view from the docml.

	The initializaion/setup of the view is done here.

	\param controller The NotesAppController object.

	\param docLoader Pointer to NotesDocLoader object.

 */

void NotesCollectionView::setupView(

		NotesAppControllerIf &controllerIf, NotesDocLoader *docLoader)

{

	OstTraceFunctionEntry0( NOTESCOLLECTIONVIEW_SETUPVIEW_ENTRY );

	mDocLoader = docLoader;

	mAppControllerIf = &controllerIf;

	mNotesModel = mAppControllerIf->notesModel();

	mAgendaUtil = mAppControllerIf->agendaUtil();

	connect(

			mAgendaUtil, SIGNAL(entriesChanged(QList<ulong>)),

			this, SLOT(updateData(QList<ulong>)));

	connect(

			mAgendaUtil, SIGNAL(entryAdded(ulong)),

			this, SLOT(updateData(ulong)));

	connect(

			mAgendaUtil, SIGNAL(entryDeleted(ulong)),

			this, SLOT(updateData(ulong)));

	mFavouriteModel = new NotesSortFilterProxyModel(*mAgendaUtil, this);

	mFavouriteModel->setDynamicSortFilter(true);

	mFavouriteModel->setFilterRole(NotesNamespace::FavouriteRole);

	mFavouriteModel->setFilterRegExp(QRegExp("favourites"));

	mFavouriteModel->setSourceModel(

			mAppControllerIf->notesModel()->sourceModel());

	connect(

			mFavouriteModel, SIGNAL(rowsInserted(QModelIndex, int, int)),

			this, SLOT(updateFavouritesCount(QModelIndex, int, int)));

	connect(

			mFavouriteModel, SIGNAL(rowsRemoved(QModelIndex, int, int)),

			this, SLOT(updateFavouritesCount(QModelIndex, int, int)));

	// Get the list view from the document and update the model.

	mListView = static_cast<HbListView *> (

			mDocLoader->findWidget("listView"));

	connect(

			mListView, SIGNAL(activated(const QModelIndex &)),

			this, SLOT(handleActivated(const QModelIndex &)));

	// Get the toolbar/menu actions.

	mAllNotesAction = static_cast<HbAction *> (

			mDocLoader->findObject("allNotesAction"));

	Q_ASSERT_X(

			mAllNotesAction,

			"notescollectionview.cpp",

			"Unable to find allNotesAction.");

	connect(

			mAllNotesAction, SIGNAL(triggered()),

			this, SLOT(displayAllNotesView()));

	mViewCollectionAction = static_cast<HbAction *> (

			mDocLoader->findObject("collectionsViewAction"));

	Q_ASSERT_X(

			mViewCollectionAction,

			"notescollectionview.cpp",

			"Unable to find viewCollectionAction.");

	mViewCollectionAction->setCheckable(true);

	mViewCollectionAction->setChecked(true);

	connect(

			mViewCollectionAction, SIGNAL(changed()),

			this, SLOT(handleActionStateChanged()));

	connect(

			mViewCollectionAction, SIGNAL(triggered()),

			this, SLOT(resetCollectionView()));

	mAddNoteAction = static_cast<HbAction *> (

			mDocLoader->findObject("newNoteAction"));

	Q_ASSERT_X(

			mAddNoteAction,

			"notescollectionview.cpp",

			"Unable to find addNoteAction.");

	connect(

			mAddNoteAction, SIGNAL(triggered()),

			this, SLOT(createNewNote()));

	OstTraceFunctionExit0( NOTESCOLLECTIONVIEW_SETUPVIEW_EXIT );

}

/*!

	Populate the content of the view.

 */

void NotesCollectionView::populateListView()

{

	OstTraceFunctionEntry0( NOTESCOLLECTIONVIEW_POPULATELISTVIEW_ENTRY );

	QStandardItemModel *model = new QStandardItemModel(this);

	model->setColumnCount(1);

	QString countString(hbTrId("txt_notes_list_note_count"));

	// Add To-do's item.

	QStandardItem *item = new QStandardItem();

	QStringList todoStringList;

	todoStringList.append(hbTrId("txt_notes_list_todos"));

	todoStringList.append(countString.arg(QString::number(todosCount())));

	item->setData(todoStringList, Qt::DisplayRole);

	model->appendRow(item);

	// Add Favorites item.

	item = new QStandardItem();

	QStringList favStringList;

	favStringList.append(hbTrId("txt_notes_list_favorites"));

	favStringList.append(countString.arg(mFavouriteModel->rowCount()));

	item->setData(favStringList, Qt::DisplayRole);

	model->appendRow(item);

	// Add Recent notes item.

	item = new QStandardItem();

	QStringList notesStringList;

	notesStringList.append(hbTrId("txt_notes_list_plain_notes"));

	notesStringList.append(

			countString.arg(QString::number(recentNotesCount())));

	item->setData(notesStringList, Qt::DisplayRole);

	model->appendRow(item);

	HbStyleLoader::registerFilePath(":/style");

	mListView->setLayoutName("custom");

	mListView->setModel(model);

	OstTraceFunctionExit0( NOTESCOLLECTIONVIEW_POPULATELISTVIEW_EXIT );

}

/*!

	Displays all notes view.

 */

void NotesCollectionView::displayAllNotesView()

{

	OstTraceFunctionEntry0( NOTESCOLLECTIONVIEW_DISPLAYALLNOTESVIEW_ENTRY );

	// Switch to collections view.

	mAppControllerIf->switchToView(NotesNamespace::NotesMainViewId);

	OstTraceFunctionExit0( NOTESCOLLECTIONVIEW_DISPLAYALLNOTESVIEW_EXIT );

}

/*!

	Refreshes the content of the collection view if needed.

 */

void NotesCollectionView::resetCollectionView()

{

	OstTraceFunctionEntry0( NOTESCOLLECTIONVIEW_RESETCOLLECTIONVIEW_ENTRY );

	QString countString(hbTrId("txt_notes_list_note_count"));

	// Update the count of to-do's.

	QModelIndex mdlIndex = mListView->model()->index(0, 0);

	QStringList todoStringList;

	todoStringList.append(hbTrId("txt_notes_list_todos"));

	todoStringList.append(countString.arg(QString::number(todosCount())));

	mListView->model()->setData(mdlIndex, todoStringList, Qt::DisplayRole);

	// Update the count of notes in the view.

	mdlIndex = mListView->model()->index(2, 0);

	QStringList notesStringList;

	notesStringList.append(hbTrId("txt_notes_list_plain_notes"));

	notesStringList.append(

			countString.arg(QString::number(recentNotesCount())));

	mListView->model()->setData(mdlIndex, notesStringList, Qt::DisplayRole);

	OstTraceFunctionExit0( NOTESCOLLECTIONVIEW_RESETCOLLECTIONVIEW_EXIT );

}

/*!

	Create a new Note

 */

void NotesCollectionView::createNewNote()

{

	OstTraceFunctionEntry0( NOTESCOLLECTIONVIEW_CREATENEWNOTE_ENTRY );

	// Here we Display an editor to the use to enter text.

	mNotesEditor = new NotesEditor(mAgendaUtil, this);

	connect(

			mNotesEditor, SIGNAL(editingCompleted(bool)),

			this, SLOT(handleEditingCompleted(bool)));

	mNotesEditor->create(NotesEditor::CreateNote);

	OstTraceFunctionExit0( NOTESCOLLECTIONVIEW_CREATENEWNOTE_EXIT );

}

/*!

	Handles editing complete of the notes editor

 */

void NotesCollectionView::handleEditingCompleted(bool status)

{

	OstTraceFunctionEntry0( NOTESCOLLECTIONVIEW_HANDLEEDITINGCOMPLETED_ENTRY );

	Q_UNUSED(status)

	// Refresh the content of the view.

	resetCollectionView();

	// Cleanup.

	mNotesEditor->deleteLater();

	mAppControllerIf->switchToView(NotesNamespace::NotesMainViewId);

	OstTraceFunctionExit0( NOTESCOLLECTIONVIEW_HANDLEEDITINGCOMPLETED_EXIT );

}

/*!

	Updates the view data in case of changes in the database.

	Handles the case when entry is added or deleted by notes application.

 */

void NotesCollectionView::updateData(ulong id)

{

	OstTraceFunctionEntry0( NOTESCOLLECTIONVIEW_UPDATEDATA_ENTRY );

	Q_UNUSED(id)

	// Refresh the content of the view.

	resetCollectionView();

	OstTraceFunctionExit0( NOTESCOLLECTIONVIEW_UPDATEDATA_EXIT );

}

/*!

	Updates the view data in case of changes in the database.

	Handles the case when db is updated by a different client.

 */

void NotesCollectionView::updateData(QList<ulong> ids)

{

	OstTraceFunctionEntry0( DUP1_NOTESCOLLECTIONVIEW_UPDATEDATA_ENTRY );

	Q_UNUSED(ids)

	// Refresh the content of the view.

	resetCollectionView();

	OstTraceFunctionExit0( DUP1_NOTESCOLLECTIONVIEW_UPDATEDATA_EXIT );

}

/*!

	Handles the case when a list item is activated and the corresponding

	collections view (viz., notes, to-dos, favourites) is opened.

	\param index The index of the item that was activated.

 */

void NotesCollectionView::handleActivated(const QModelIndex &index)

{

	OstTraceFunctionEntry0( NOTESCOLLECTIONVIEW_HANDLEACTIVATED_ENTRY );

	switch (index.row()) {

		case 0: {

			if (todosCount()) {

				// To-do item selected.

				// Switch to to-do view if to-do entries exist.

				mAppControllerIf->switchToView(NotesNamespace::NotesTodoViewId);

			}

		}

		break;

		case 1: {

			if (mFavouriteModel->rowCount()) {

				// Favorites item selected.

				// Switch to favorites view if favorites exist.

				mAppControllerIf->switchToView(

						NotesNamespace::NotesFavoritesViewId);

			}

		}

		break;

		case 2: {

			if (recentNotesCount()) {

				// Recent notes item selected.

				// Switch to recent notes view if notes exist.

				mAppControllerIf->switchToView(

						NotesNamespace::NotesNoteViewId);

			}

		}

		break;

		default:

			// Nothing yet.

			break;

	}

	OstTraceFunctionExit0( NOTESCOLLECTIONVIEW_HANDLEACTIVATED_EXIT );

}

/*!

	Updates the number of favourites displayed.

	\sa QAbstractItemModel

 */

void NotesCollectionView::updateFavouritesCount(

		const QModelIndex &index, int start, int end)

{

	OstTraceFunctionEntry0( NOTESCOLLECTIONVIEW_UPDATEFAVOURITESCOUNT_ENTRY );

	Q_UNUSED(index)

	Q_UNUSED(start)

	Q_UNUSED(end)

	// Check model is set for mListView  before update 	

	if( mListView->model())

	{

		// Update the count of notes in the view.

		QString countString(hbTrId("txt_notes_list_note_count"));

		QModelIndex mdlIndex = mListView->model()->index(1, 0);

		QStringList favStringList;

		favStringList.append(hbTrId("txt_notes_list_favorites"));

		favStringList.append(countString.arg(mFavouriteModel->rowCount()));

		mListView->model()->setData(mdlIndex, favStringList, Qt::DisplayRole);

	}

	OstTraceFunctionExit0( NOTESCOLLECTIONVIEW_UPDATEFAVOURITESCOUNT_EXIT );

}

/*!

	Slot to handle the case when the state of an action has changed.

 */

void NotesCollectionView::handleActionStateChanged()

{

	OstTraceFunctionEntry0( NOTESCOLLECTIONVIEW_HANDLEACTIONSTATECHANGED_ENTRY );

	mViewCollectionAction->setChecked(true);

	OstTraceFunctionExit0( NOTESCOLLECTIONVIEW_HANDLEACTIONSTATECHANGED_EXIT );

}

/*!

	Returns the todos count

	\return int todos count.

 */

int NotesCollectionView::todosCount()

{

	OstTraceFunctionEntry0( NOTESCOLLECTIONVIEW_TODOSCOUNT_ENTRY );

	QList<ulong> entries = mAgendaUtil->entryIds(

			(AgendaUtil::FilterFlags)

			(AgendaUtil::IncludeCompletedTodos

			| AgendaUtil::IncludeIncompletedTodos));

	return entries.count();

}

/*!

	Returns recent notes count.

	\return int recent notes count.

 */

int NotesCollectionView::recentNotesCount()

{

	OstTraceFunctionEntry0( NOTESCOLLECTIONVIEW_RECENTNOTESCOUNT_ENTRY );

	QList<ulong> entries = mAgendaUtil->entryIds(AgendaUtil::IncludeNotes);

	return entries.count();

}

// End of file	--Don't remove this.