/*

* Copyright (c) 2010 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 <HbInstance>

#include <HbMainWindow>

#include <HbView>

#include <HbMenu>

#include <HbAction>

#include "hsgui.h"

#include "hsidlewidget.h"

#include "hsscene.h"

#include "hsconfiguration.h"

#include "hspropertyanimationwrapper.h"

namespace {

      const char gApplicationLibraryIconName[] = "qtg_mono_applications_all";

}

/*!

    \class HsGui

    \ingroup group_hsdomainmodel

    \brief Represents a view in the framework.

    HsGui includes common UI components for Home screen.

*/

HsGui *HsGui::mInstance(0);

struct HsGuiImpl

{

    HsIdleWidget *mIdleWidget;

    HbView *mIdleView;

    HbMainWindow *mWindow;

    HbAction *mNavigationAction;

    HsPropertyAnimationWrapper *mPageChangeAnimation;

    HsPropertyAnimationWrapper *mPageCrawlingAnimation;

};

HsGui::~HsGui()

{

    if (mImpl->mNavigationAction) {

        delete mImpl->mNavigationAction;

    }

    if (mImpl->mPageChangeAnimation) {

        mImpl->mPageChangeAnimation->stop();

        delete mImpl->mPageChangeAnimation;

    }

    if (mImpl->mPageCrawlingAnimation) {

        mImpl->mPageCrawlingAnimation->stop();

        delete mImpl->mPageCrawlingAnimation;

    }

    delete mImpl;

}

HsGui *HsGui::setInstance(HsGui *instance)

{

    HsGui *old = mInstance;

    if (mInstance != instance) {

        mInstance = instance;

    }

    return old;

}

HsGui *HsGui::instance()

{

    if (!mInstance) {

        mInstance = new HsGui(QCoreApplication::instance());

    }

    return mInstance;

}

HsGui *HsGui::takeInstance()

{

    HsGui *instance = mInstance;

    mInstance = 0;

    return instance;

}

void HsGui::setupIdleUi()

{

    if (!mImpl->mIdleWidget) {

        mImpl->mIdleWidget = new HsIdleWidget;

        mImpl->mIdleView = mImpl->mWindow->addView(mImpl->mIdleWidget);

        mImpl->mIdleView->setContentFullScreen();

        delete mImpl->mNavigationAction;

        mImpl->mNavigationAction = 0;

        mImpl->mNavigationAction = new HbAction;

        mImpl->mNavigationAction->setIcon(HbIcon(gApplicationLibraryIconName));

        mImpl->mNavigationAction->setObjectName("applib_navigation_action");

        connect(mImpl->mNavigationAction, SIGNAL(triggered()), SIGNAL(navigateToApplibrary()));

        mImpl->mIdleView->setNavigationAction(mImpl->mNavigationAction);

    }

    bool animate  = !mImpl->mWindow->isObscured();

    mImpl->mWindow->setCurrentView(mImpl->mIdleView, animate, Hb::ViewSwitchCachedFullScreen);    

}

void HsGui::cleanupIdleUi()

{

    if (mImpl->mIdleView) {

        mImpl->mIdleView->setNavigationAction(0);

        delete mImpl->mNavigationAction;

        mImpl->mNavigationAction = 0;

        mImpl->mWindow->removeView(mImpl->mIdleView);

        delete mImpl->mIdleView;

        mImpl->mIdleView = 0;

        delete mImpl->mPageChangeAnimation;

        mImpl->mPageChangeAnimation = 0;

        delete mImpl->mPageCrawlingAnimation;

        mImpl->mPageCrawlingAnimation = 0;

        // This gets deleted when mImpl->mIdleView is deleted

        // so just nullify.

        mImpl->mIdleWidget = 0;

    }

}

void HsGui::setOrientation(Qt::Orientation orientation)

{

    mImpl->mWindow->setOrientation(orientation);

}

Qt::Orientation HsGui::orientation()

{

    return mImpl->mWindow->orientation();

}

HbView *HsGui::idleView() const

{

    return mImpl->mIdleView;

}

HsIdleWidget *HsGui::idleWidget() const

{

    return mImpl->mIdleWidget;

}

QRectF HsGui::layoutRect() const

{

    return mImpl->mWindow->layoutRect();

}

void HsGui::show()

{

    mImpl->mWindow->raise();

    mImpl->mWindow->show();

}

HsPropertyAnimationWrapper *HsGui::pageChangeAnimation()

{

    if (!mImpl->mPageChangeAnimation) {

        mImpl->mPageChangeAnimation = new HsPropertyAnimationWrapper;

        mImpl->mPageChangeAnimation->setTargetObject(mImpl->mIdleWidget);

        mImpl->mPageChangeAnimation->setPropertyName("sceneX"); 

    }

    return mImpl->mPageChangeAnimation;

}

HsPropertyAnimationWrapper *HsGui::pageCrawlingAnimation()

{

    if (!mImpl->mPageCrawlingAnimation) {

        mImpl->mPageCrawlingAnimation = new HsPropertyAnimationWrapper;

        mImpl->mPageCrawlingAnimation->setTargetObject(mImpl->mIdleWidget);

        mImpl->mPageCrawlingAnimation->setPropertyName("sceneX"); 

    }

    return mImpl->mPageCrawlingAnimation;

}

HsGui::HsGui(QObject *parent):

    QObject(parent),mImpl(new HsGuiImpl)

{

    mImpl->mIdleView = 0;

    mImpl->mIdleWidget = 0;

    mImpl->mNavigationAction = 0;

    mImpl->mPageChangeAnimation = 0;

    mImpl->mPageCrawlingAnimation = 0;

    mImpl->mWindow = hbInstance->allMainWindows().first();

    connect(mImpl->mWindow, SIGNAL(orientationChanged(Qt::Orientation)),

        SIGNAL(orientationChanged(Qt::Orientation)));

}