/*

* 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: 

*

*/

#include <QStandardItemModel>

#include <QDebug>

#include <hbmainwindow.h>

#include <hbapplication.h>

#include <hbaction.h>

#include <hbtreeview.h>

#include <hbtoolbar.h>

#include <hbsearchpanel.h>

#include <hbscrollbar.h>

#include <hblineedit.h>

#include <hbmenu.h>

#include "HelpDocumentLoader.h"

#include "HelpDataProvider.h"

#include "HelpProxyModel.h"

#include "HelpCategoryView.h"

//////////////////////////////////////////////////////////////////////////////////////////////

HelpCategoryView::HelpCategoryView() : 

mViewMode(ViewModeNull), 

mListAll(NULL), 

mListSearch(NULL), 

mSearchPanel(NULL), 

mToolBar(NULL)

{

}

HelpCategoryView::~HelpCategoryView()

{

}

////////////////////////////////////////////////////////////////////////////////////////////

void HelpCategoryView::init()

{

    initBackAction();

    initAllList();

    initSearchList();

    initSearchPanel();

    initToolbar();

    switchViewMode(ViewModeAll);

    connect(mainWindow(), SIGNAL(currentViewChanged(HbView*)), this, SLOT(onCurrentViewChanged(HbView*)));

    connect(mainWindow(), SIGNAL(orientationChanged(Qt::Orientation)), this, SLOT(onOrientationChanged(Qt::Orientation)));

}

void HelpCategoryView::initBackAction()

{

    mSoftKeyAction = new HbAction(Hb::BackAction);

    connect(mSoftKeyAction, SIGNAL(triggered()), this, SLOT(onBackAction()));

}

void HelpCategoryView::initAllList()

{

    mListAll = HelpUIBuilder::findWidget<HbTreeView*>(DOCML_LIST_CATEGORY_ALL);

    mListAll->setHorizontalScrollBarPolicy(HbScrollArea::ScrollBarAlwaysOff);

    mListAll->setModel(HelpDataProvider::instance()->getCategoryData());

    connect(mListAll, SIGNAL(activated(const QModelIndex&)), this, SLOT(onAllListActivated(const QModelIndex&)));

}

void HelpCategoryView::initSearchList()

{

    mListSearch = HelpUIBuilder::findWidget<HbTreeView*>(DOCML_LIST_CATEGORY_SEARCH);

    mListSearch->setHorizontalScrollBarPolicy(HbScrollArea::ScrollBarAlwaysOff);

    mListSearch->setModel(HelpDataProvider::instance()->getSearchData());

    connect(mListSearch, SIGNAL(activated(const QModelIndex&)), this, SLOT(onSearchListActivated(const QModelIndex&)));

}

void HelpCategoryView::initSearchPanel()

{

    mSearchPanel = HelpUIBuilder::findWidget<HbSearchPanel*>(DOCML_SEARCH_PANEL_CATEGORY);

    connect(mSearchPanel, SIGNAL(exitClicked()), this, SLOT(onSearchPanelExitClicked()));

    connect(mSearchPanel, SIGNAL(criteriaChanged(const QString&)), this, SLOT(onSearchPanelCriteriaChanged(const QString&)));

}

void HelpCategoryView::initToolbar()

{

    mToolBar = HelpUIBuilder::findWidget<HbToolBar*>(DOCML_TOOLBAR);

    HbAction* allAction = HelpUIBuilder::findObject<HbAction*>(DOCML_ACTION_ALL);

    HbAction* findAction = HelpUIBuilder::findObject<HbAction*>(DOCML_ACTION_SEARCH);

    QActionGroup* toolBarActionGroup = new QActionGroup(mToolBar);

    allAction->setActionGroup(toolBarActionGroup);

    findAction->setActionGroup(toolBarActionGroup);

}

////////////////////////////////////////////////////////////////////////////////////////////

void HelpCategoryView::switchViewMode(ViewMode viewMode)

{

    if(ViewModeNull == viewMode) return;

    mViewMode = viewMode;

    if(ViewModeAll == viewMode)

    {

        HelpUIBuilder::load(QRC_DOCML_CATEGORY, DOCML_LAYOUT_CATEGORY_ALL);

    }

    else if(ViewModeSearch == viewMode)

    {

        HelpUIBuilder::load(QRC_DOCML_CATEGORY, DOCML_LAYOUT_CATEGORY_SEARCH);

    }

    RefreshTitlebarVisibility();

}

////////////////////////////////////////////////////////////////////////////////////////////

void HelpCategoryView::RefreshToolbarText(bool isLandscape)

{

    HbAction* tollbarAction = HelpUIBuilder::findObject<HbAction*>(DOCML_ACTION_ALL);

    tollbarAction->setText(isLandscape ? qtTrId(TXT_BUTTON_ALL) : QString());

    tollbarAction = HelpUIBuilder::findObject<HbAction*>(DOCML_ACTION_SEARCH);

    tollbarAction->setText(isLandscape ? qtTrId(TXT_BUTTON_FIND) : QString());

    tollbarAction = HelpUIBuilder::findObject<HbAction*>(DOCML_ACTION_LINK_NOKIA);

    tollbarAction->setText(isLandscape ? qtTrId(TXT_BUTTON_LINK_SUPPORT) : QString());

}

void HelpCategoryView::RefreshTitlebarVisibility()

{

	setTitleBarVisible(!(mSearchPanel->isVisible()));

}

void HelpCategoryView::ResetSearchPanel()

{

    foreach(QGraphicsItem *obj, mSearchPanel->childItems())

    {

        QGraphicsWidget *const widget = static_cast<QGraphicsWidget*>(obj);

        if(widget != NULL)

        {

            HbLineEdit *const lineEdit = qobject_cast<HbLineEdit*>(widget);

            if(lineEdit != NULL)

            {

                lineEdit->setText("");

                break;

            }

        }

    }

}

////////////////////////////////////////////////////////////////////////////////////////////

// handle system event

void HelpCategoryView::onCurrentViewChanged(HbView *view)

{

    if(this == view)

    {

        setNavigationAction(mSoftKeyAction);        

    }

}

void HelpCategoryView::onOrientationChanged(Qt::Orientation orientation)

{

    bool isLandscape = (Qt::Horizontal==orientation);

    RefreshToolbarText(isLandscape);

}

///////////////////////////////////////////////////////////////////////////////////////

// handle button back action

void HelpCategoryView::onBackAction()

{

	if(this == mainWindow()->currentView())

	{

		HbApplication::exit();

	}

}

////////////////////////////////////////////////////////////////////////////////////////////

// handle list event

void HelpCategoryView::onAllListActivated(const QModelIndex& index)

{

    if(!index.isValid() ||          // invalid

       index.child(0,0).isValid())  // this is a node

    {

        return;

    }

    QString uid = mListAll->model()->data(index.parent(), UidRole).toString();

    QString href = mListAll->model()->data(index, HrefRole).toString();

    HelpDataProvider::instance()->setHelpContentUrl(uid, href);

    emit activateView(HelpViewContents);

}

void HelpCategoryView::onSearchListActivated(const QModelIndex& index)

{

    if(!index.isValid() ||          // invalid

       index.child(0,0).isValid())  // this is a node

    {

        return;

    }

    QString uid = mListSearch->model()->data(index, UidRole).toString();

    QString href = mListSearch->model()->data(index, HrefRole).toString();

    HelpDataProvider::instance()->setHelpContentUrl(uid, href);

    emit activateView(HelpViewContents);

}

////////////////////////////////////////////////////////////////////////////////////////////

// handle search panel event

void HelpCategoryView::onSearchPanelExitClicked()

{

    setTitleBarVisible(true);

    HelpUIBuilder::load(QRC_DOCML_CATEGORY, DOCML_LAYOUT_CATEGORY_SEARCH_NO_SRHPAL);

}

void HelpCategoryView::onSearchPanelCriteriaChanged(const QString &criteria)

{

    mListSearch->setModel(HelpDataProvider::instance()->getSearchData(criteria));

    mListSearch->update();

}

// end of file