#include <HbTextItem>

#include <HbFrameDrawer>

#include <HbFrameItem>

#include <csmsaccount.h>

#include <smutset.h>

#include <hbmessagebox.h>

#include <QTimer>

#include "unieditorpluginloader.h"

#include "unieditorplugininterface.h"

#include "unisendingsettings.h"

#include "unieditorgenutils.h"

const QString SEND_ICON("qtg_mono_send");

const QString BACKGROUND("qtg_fr_input_bg");

const QString BACKGROUND_FRAME("qtg_fr_btn_normal");

const QString SEND_BUTTON_NORMAL("qtg_fr_input_btn_function_normal");

const QString SEND_BUTTON_PRESSED("qtg_fr_input_btn_function_pressed");

const QString SEND_BUTTON_DISABLED("qtg_fr_input_btn_function_disabled");

#define LOC_SMS_CHAR_LIMIT_REACHED hbTrId("txt_messaging_dialog_sms_character_count_exceeded")

#define LOC_DIALOG_OK hbTrId("txt_common_button_ok")

#define LOC_BUTTON_CANCEL hbTrId("txt_common_button_cancel")

const TInt KShowCounterLimit = 10;

    HbWidget(parent), mMsgEditor(NULL),

    mSendButton(NULL),mPluginLoader(NULL)

    //setting background.

    HbFrameItem* backGround = new HbFrameItem(this);

    backGround->frameDrawer().setFrameGraphicsName(BACKGROUND);

    backGround->frameDrawer().setFrameType(HbFrameDrawer::ThreePiecesVertical);

    backGround->frameDrawer().setFillWholeRect(true);

    this->setBackgroundItem(backGround); 

    mMsgEditor->setMaxRows(3); // NOTE: Don't remove this line.

    HbFrameDrawer* drawer = new HbFrameDrawer(this);

    drawer->setFrameType(HbFrameDrawer::NinePieces);

    mSendButton->setFrameBackground(drawer);

    updateButtonBackground(SEND_BUTTON_DISABLED);

    mCharCounter = new HbTextItem(this);

    HbStyle::setItemName(mCharCounter, "charCounter");

    mCharCounter->setZValue(1.5);

    mBackgroundItem = new HbFrameItem(this);

    HbStyle::setItemName(mBackgroundItem, "charCounterFrame");

    mBackgroundItem->frameDrawer().setFrameType(HbFrameDrawer::NinePieces);

    mBackgroundItem->frameDrawer().setFillWholeRect(true);

    mBackgroundItem->frameDrawer().setFrameGraphicsName(

        BACKGROUND_FRAME);    

    //Create editor utils object

    mEditorUtils = new UniEditorGenUtils();

    connect(mSendButton, SIGNAL(pressed()),this, SLOT(onPressed()));

    connect(mSendButton, SIGNAL(released()),this, SLOT(onReleased()));

    delete mEditorUtils;

// MsgEditorWidget::onTextChanged

    //If char limit is already reached we are about to show the sms limit dialog

    //So we need not process the additional character entered

    if(mSmsCharLimitReached)

    {

        return;

    }

            updateButtonBackground(SEND_BUTTON_NORMAL);

            updateButtonBackground(SEND_BUTTON_DISABLED);

    //Check done for optimization

    //Only if content is deleted we need to call encodingsettings again

    if(mPrevBuffer.isEmpty() || str.size() <= mPrevBuffer.size())

    {

    mPluginInterface->setEncodingSettings(EFalse,ESmsEncodingNone,mCharSupportType);

    }

    TInt numOfRemainingChars;

    TInt numOfPDUs;

    TBool unicodeMode;

    TSmsEncoding alternativeEncodingType;

    QString string = str;

    mPluginInterface->getNumPDUs(string, numOfRemainingChars, numOfPDUs,

        unicodeMode, alternativeEncodingType);

    //Set char counter value

    QString display = QString("%1(%2)").arg(numOfRemainingChars).arg(numOfPDUs);

    mCharCounter->setText(display);

    if(numOfPDUs > 1 || numOfRemainingChars <= KShowCounterLimit  )

    {

        mCharCounter->setVisible(true);

        mBackgroundItem->setVisible(true);

    }

    else

    {

        mCharCounter->setVisible(false);

        mBackgroundItem->setVisible(false);

    }

    //Check if sms segment limit has been reached

    bool unicode = (unicodeMode) ? true : false;

    int contentSize = mEditorUtils->UTF8Size(string);

    int maxSmsSize =  mEditorUtils->MaxSmsMsgSizeL(unicode);

    if(contentSize > maxSmsSize)

    {        

        //Give breathing time for ITUT to complete its processing

        //without this there is a crash as ITUT cant complete its processing

        mSmsCharLimitReached = true;

        QTimer::singleShot(50, this, SLOT(handleSmsCharLimitReached()));   

        if(mPrevBuffer.isEmpty())

        {

            //Chop the last char and set it to the editor

            string.chop(1);

            mPrevBuffer = string;

        }

    }

    else

    {                

        //Save the previous buffer

        mPrevBuffer = string;        

    }

}

//---------------------------------------------------------------

// MsgEditorWidget::handleSmsCharLimitReached

// @see header

//---------------------------------------------------------------

void MsgEditorWidget::handleSmsCharLimitReached()

{

    mSmsCharLimitReached = false;

    if(HbMessageBox::question(LOC_SMS_CHAR_LIMIT_REACHED,

        LOC_DIALOG_OK,

        LOC_BUTTON_CANCEL))

    {

        //Launch UniEditor 

        emit smsCharLimitReached();

        return;

    }

    else

    {

        //Set the previous content

        setContent(QString(mPrevBuffer));

        return;

    }

//---------------------------------------------------------------

// MsgEditor::updateButtonBackground

// @see header

//---------------------------------------------------------------

void MsgEditorWidget::updateButtonBackground(const QString& bg)

    {

    HbFrameDrawer* drawer = mSendButton->frameBackground();

    if(drawer)

        {

        drawer->setFrameGraphicsName(bg);        

        }

    }

//---------------------------------------------------------------

// MsgEditor::onPressed

// @see header

//---------------------------------------------------------------

void MsgEditorWidget::onPressed()

    {

    updateButtonBackground(SEND_BUTTON_PRESSED);

    }

//---------------------------------------------------------------

// MsgEditor::onReleased

// @see header

//---------------------------------------------------------------

void MsgEditorWidget::onReleased()

    {

    updateButtonBackground(SEND_BUTTON_NORMAL);

    }

//---------------------------------------------------------------

// MsgEditor::setEncodingSettings

// @see header

//---------------------------------------------------------------

void MsgEditorWidget::setEncodingSettings()

{ 

    if( mPluginLoader )

    {

        delete mPluginLoader;

    }

    mPluginLoader = new UniEditorPluginLoader(this);

    mPluginInterface =

                        mPluginLoader->getUniEditorPlugin(ConvergedMessage::Sms);    

    CSmsSettings* settings = CSmsSettings::NewLC();

    CSmsAccount* account = CSmsAccount::NewLC();

    account->LoadSettingsL( *settings );

    if( settings->CharacterSet() == TSmsDataCodingScheme::ESmsAlphabetUCS2)

    {

    mCharSupportType = TUniSendingSettings::EUniCharSupportFull;

    }

    else

    {

    mCharSupportType = TUniSendingSettings::EUniCharSupportReduced;

    }

    CleanupStack::PopAndDestroy( account );

    CleanupStack::PopAndDestroy( settings );                

    //Set the mPrevBuffer to NULL initially

    mPrevBuffer = QString();

    mSmsCharLimitReached = false;

    mCharCounter->setVisible(false);

    mBackgroundItem->setVisible(false);

}