/*

* 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 <hbtoolbar.h>

#include <hblabel.h>

#include <hbtreeview.h>

#include <hblistview.h>

#include <hbsearchpanel.h>

#include <hbscrollbar.h>

#include <hblineedit.h>

#include <hbmenu.h>

#include <hbstaticvkbhost.h>

#include "HelpDataProvider.h"

#include "HelpProxyModel.h"

#include "HelpKeywordView.h"

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

HelpKeywordView::HelpKeywordView() : 

mListSearch(NULL), 

mSearchPanel(NULL)

{

}

HelpKeywordView::~HelpKeywordView()

{

}

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

void HelpKeywordView::init()

{

	initDocMl();

    initBackAction();

    initSearchList();

    initSearchPanel();

	initVirtualKeyboard();

    connect(mainWindow(), SIGNAL(viewReady()), this, SLOT(onViewReady()));

}

void HelpKeywordView::initDocMl()

{

	initBaseDocMl(); 

	mBuilder.load(QRC_DOCML_KEYWORD);

}

void HelpKeywordView::initBackAction()

{

    mSoftKeyAction = new HbAction(Hb::BackNaviAction);

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

}

void HelpKeywordView::initSearchList()

{

    mListSearch = mBuilder.findWidget<HbListView*>(DOCML_LIST_SEARCH);

    mListSearch->setHorizontalScrollBarPolicy(HbScrollArea::ScrollBarAlwaysOff);

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

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

}

void HelpKeywordView::initSearchPanel()

{

    mSearchPanel = mBuilder.findWidget<HbSearchPanel*>(DOCML_SEARCH_PANEL);

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

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

}

void HelpKeywordView::initVirtualKeyboard()

{

	mVirtualKeyboard = new HbStaticVkbHost(this);

    connect(mVirtualKeyboard, SIGNAL(keypadOpened()), this, SLOT(onHandleKeypadOpen()));

    connect(mVirtualKeyboard, SIGNAL(keypadClosed()), this, SLOT(onHandleKeypadClose()));

}

HbLabel* HelpKeywordView::label()

{

	return mBuilder.findWidget<HbLabel*>(DOCML_NO_MATCH_LABEL);

}

void HelpKeywordView::loadAllContent()

{

	showToolBar(false);

	mBuilder.load(QRC_DOCML_KEYWORD, DOCML_LAYOUT_SEARCH);

	ResetSearchPanel();

}

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

void HelpKeywordView::updateVisibleItems(bool visible)

{

	static Hb::SceneItems items = Hb::TitleBarItem | Hb::StatusBarItem;

	if(visible)

	{

		showItems(items);

	}

	else

	{

		hideItems(items);

	}

}

void HelpKeywordView::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("");

				lineEdit->setFocus();

                break;

            }

        }

    }

}

void HelpKeywordView::updateLabelPos()

{

	HbDeviceProfile profile = HbDeviceProfile::profile(mainWindow());

	qreal unValue = profile.unitValue();

	if(mainWindow()->orientation() == Qt::Vertical)

	{

		if(mVirtualKeyboard->keypadStatus() == HbVkbHost::HbVkbStatusClosed)

		{

			label()->setContentsMargins(0,30 * unValue,0,0);

		}

		else

		{

			label()->setContentsMargins(0,10 * unValue,0,0);

		}

	}

	else

	{

		if(mVirtualKeyboard->keypadStatus() == HbVkbHost::HbVkbStatusClosed)

		{

			label()->setContentsMargins(0,10 * unValue,0,0);

		}

		else

		{

            label()->setContentsMargins(0,0,0,0);

			label()->setAlignment(label()->alignment() | Qt::AlignVCenter);

		}

	}

}

void HelpKeywordView::showToolBar(bool visible)

{

	Hb::SceneItems items = Hb::ToolBarItem;

	if(visible)

	{

		showItems(items);

	}

	else

	{

		hideItems(items);

	}

}

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

// handle system event

void HelpKeywordView::onViewReady()

{

	if(isVisible())

	{

		setNavigationAction(mSoftKeyAction);  

	}

}

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

// handle button back action

void HelpKeywordView::onBackAction()

{

	emit activateView(HelpViewCategory);

}

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

// handle list event

void HelpKeywordView::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 HelpKeywordView::onSearchPanelExitClicked()

{

	if(mListSearch->model()->rowCount() == 0)

	{

		mBuilder.load(QRC_DOCML_KEYWORD, DOCML_LAYOUT_SEARCH_NO_SRHPAL_NO_MATCH);

	}

	else

	{

		mBuilder.load(QRC_DOCML_KEYWORD, DOCML_LAYOUT_SEARCH_NO_SRHPAL);

	}	

	showToolBar(true);

}

void HelpKeywordView::onSearchPanelCriteriaChanged(const QString &criteria)

{

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

	if(mListSearch->model()->rowCount() == 0)

	{

		mBuilder.load(QRC_DOCML_KEYWORD, DOCML_LAYOUT_SEARCH_NO_MATCH);

	}

	else

	{

		mBuilder.load(QRC_DOCML_KEYWORD, DOCML_LAYOUT_SEARCH);

	}

	showToolBar(false);

}

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

// handle virtual keyboard event

void HelpKeywordView::onHandleKeypadOpen()

{

	updateVisibleItems(false);

    qreal heightToSet = mainWindow()->layoutRect().height() - mVirtualKeyboard->keyboardArea().height();

    this->setMaximumHeight(heightToSet);

	updateLabelPos();

}

void HelpKeywordView::onHandleKeypadClose()

{	

	updateVisibleItems(true);

	qreal mainHeight  = mainWindow()->layoutRect().height();

	qreal toolbarHeight = toolBar()->size().height();

	qreal height = mainHeight - ( toolBar()->isVisible() ? toolbarHeight : 0);

	this->setMaximumHeight(height);

	updateLabelPos();

}

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

{

	Q_UNUSED(orientation);

	updateLabelPos();

}

// end of file