/*
 * 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: This widget displays the pixmap content in viewer.
 *
 */

#include "univiewerpixmapwidget.h"

// SYSTEM INCLUDES
#include <HbTapGesture>
#include <HbWidget>
#include <HbInstantFeedback>
#include <HbMenu>
#include <QPixmap>
#include <QTimer>
#include <thumbnailmanager_qt.h>

// USER INCLUDES
#include "univiewerutils.h"
#include "unidatamodelplugininterface.h"

// LOCAL CONSTANTS
#define LOC_OPEN    hbTrId("txt_common_menu_open")
#define LOC_SAVE    hbTrId("txt_common_menu_save")

const QString PIXMAP_ICON("qtg_small_image");
const QString CORRUPTED_PIXMAP_ICON("qtg_large_corrupted");
const QString VIDEO_MIMETYPE("video");
const QString MSG_VIDEO_ICON("qtg_large_video_player");

//---------------------------------------------------------------
// UniViewerPixmapWidget::UniViewerPixmapWidget
// @see header file
//---------------------------------------------------------------
UniViewerPixmapWidget::UniViewerPixmapWidget(QGraphicsItem *parent) :
    HbIconItem(parent), mViewerUtils(0), mThumbnailManager(0)
{
    this->grabGesture(Qt::TapGesture);
    init();
}

//---------------------------------------------------------------
// UniViewerPixmapWidget::init
// @see header file
//---------------------------------------------------------------
void UniViewerPixmapWidget::init() 
{
    mThumbnailManager = new ThumbnailManager(this);
    mThumbnailManager->setMode(ThumbnailManager::Default);
    mThumbnailManager->setQualityPreference(ThumbnailManager::OptimizeForQuality);
    mThumbnailManager->setThumbnailSize(ThumbnailManager::ThumbnailLarge);

    connect(mThumbnailManager, SIGNAL(thumbnailReady(QPixmap, void*, int, int)), this,
    SLOT(thumbnailReady(QPixmap, void*, int, int)));

}

//---------------------------------------------------------------
// UniViewerPixmapWidget::~UniViewerPixmapWidget
// @see header file
//---------------------------------------------------------------
UniViewerPixmapWidget::~UniViewerPixmapWidget()
{
}

//---------------------------------------------------------------
// UniViewerPixmapWidget::setPixmap
// @see header file
//---------------------------------------------------------------
void UniViewerPixmapWidget::populate(UniMessageInfo *info)
{
    mMimeType = info->mimetype();
    mPixmapPath = info->path();
    if (mMimeType.contains(VIDEO_MIMETYPE)) {
        this->setIcon(MSG_VIDEO_ICON);
        mThumbnailManager->getThumbnail(mPixmapPath);
        this->ungrabGesture(Qt::TapGesture);
    }
    else if (info->isProtected()) {
        this->setIconName(PIXMAP_ICON);
    }
    else if (info->isCorrupted()) {
        this->setIconName(CORRUPTED_PIXMAP_ICON);
    }
    else {
        QPixmap pixmap(mPixmapPath);
        this->setIcon(HbIcon(pixmap));
    }
}

//---------------------------------------------------------------
// UniViewerPixmapWidget::gestureEvent
// @see header file
//---------------------------------------------------------------
void UniViewerPixmapWidget::gestureEvent(QGestureEvent *event)
{
    HbTapGesture *tapGesture = qobject_cast<HbTapGesture*> (event->gesture(Qt::TapGesture));
    if (tapGesture) {
        switch (tapGesture->state()) {
        case Qt::GestureStarted:
        {
            // Trigger haptic feedback.
            HbInstantFeedback::play(HbFeedback::Basic);
            break;
        }
        case Qt::GestureUpdated:
        {
            if (HbTapGesture::TapAndHold == tapGesture->tapStyleHint()) {
                // Handle longtap.
                handleLongTap(tapGesture->scenePosition());
            }
            break;
        }
        case Qt::GestureFinished:
        {
            HbInstantFeedback::play(HbFeedback::Basic);
            if (HbTapGesture::Tap == tapGesture->tapStyleHint()) {
                // Handle short tap
                handleShortTap();
            }
            break;
        }
        case Qt::GestureCanceled:
        {
            HbInstantFeedback::play(HbFeedback::Basic);
            break;
        }
        }
    }
    else {
        HbIconItem::gestureEvent(event);
    }
}

//---------------------------------------------------------------
// UniViewerPixmapWidget::handleOpen
// @see header file
//---------------------------------------------------------------
void UniViewerPixmapWidget::handleOpen()
{
    this->ungrabGesture(Qt::TapGesture);

    if (!mViewerUtils) {
        mViewerUtils = new UniViewerUtils(this);
    }
    mViewerUtils->launchContentViewer(mMimeType, mPixmapPath);

    //fire timer to regrab gesture after some delay.
    QTimer::singleShot(300,this,SLOT(regrabGesture()));
}

//---------------------------------------------------------------
// UniViewerPixmapWidget::handleSave
// @see header file
//---------------------------------------------------------------
void UniViewerPixmapWidget::handleSave()
{
}

//----------------------------------------------------------------------------
// UniViewerPixmapWidget::handleShortTap
// @see header file
//----------------------------------------------------------------------------
void UniViewerPixmapWidget::handleShortTap()
{
    emit shortTap(mPixmapPath);

    // Open the media.
    handleOpen();
}

//---------------------------------------------------------------
// UniViewerPixmapWidget::handleLongTap
// @see header file
//---------------------------------------------------------------
void UniViewerPixmapWidget::handleLongTap(const QPointF &position)
{
    emit longTap(position);

    HbMenu* menu = new HbMenu;
    menu->setAttribute(Qt::WA_DeleteOnClose);
    menu->addAction(LOC_OPEN, this, SLOT(handleOpen()));
    menu->addAction(LOC_SAVE, this, SLOT(handleSave()));
    menu->setPreferredPos(position);
    menu->show();
}

//---------------------------------------------------------------
// UniViewerPixmapWidget::regrabGesture
// @see header file
//---------------------------------------------------------------
void UniViewerPixmapWidget::regrabGesture()
{
    this->grabGesture(Qt::TapGesture);
}

//---------------------------------------------------------------
// UniViewerPixmapWidget::thumbnailReady
// @see header
//---------------------------------------------------------------
void UniViewerPixmapWidget::thumbnailReady(const QPixmap& pixmap, void *data, int id, int error)
{
    Q_UNUSED(data)
    Q_UNUSED(id)
    this->grabGesture(Qt::TapGesture);
    if (!error) {
        this->setIcon(HbIcon(pixmap));
        this->hide();
        // calling the sizeint forcefully as thumbnailReady is a async call
        // by the time this call has come sizeint would have already been calculated.
        this->parentWidget()->resize(-1, -1);
    }
}
// EOF