/*

 * 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: Menu All Applications state.

 *

 */

#include <QStateMachine>

#include <HbView>

#include <HbGroupBox>

#include <HbListView>

#include <HbAction>

#include <HbMenu>

#include <HbAbstractViewItem>

#include <cadefs.h>

#include <caentry.h>

#include "hsapp_defs.h"

#include "hsmenueventfactory.h"

#include "hsmenuitemmodel.h"

#include "hsinstalledappsstate.h"

#include "hsaddappstocollectionstate.h"

#include "hsmenumodetransition.h"

/*!

 \class HsInstalledAppsState

 \ingroup group_hsapplibrarystateplugin

 \brief Manages displaying installed applications

 Displays all installed packages present on the device.

 \see StateMachine

 \lib ?library

 */

/*!

 Constructor.

 \param menuViewBuilder Menu view builder.

 \param mainWindow main window wrapper.

 \param parent Owner.

 */

HsInstalledAppsState::HsInstalledAppsState(HsMenuViewBuilder &menuViewBuilder,

        HsMainWindow &mainWindow,

        QState *parent):

    HsBaseViewState(mainWindow, parent),

            mSortAttribute(Hs::OldestOnTopHsSortAttribute)

{

    initialize(menuViewBuilder, HsInstalledAppsContext);

    construct();

}

/*!

 Constructor part.

 */

void HsInstalledAppsState::construct()

{

    HSMENUTEST_FUNC_ENTRY("HsInstalledAppsState::construct");

    const QString parentName =

        parent() != 0 ? parent()->objectName() : QString("");

    setObjectName(parentName + "/installedappsstate");

    connect(mBackKeyAction, SIGNAL(triggered()), SLOT(openAppLibrary()));

    HSMENUTEST_FUNC_EXIT("HsInstalledAppsState::construct");

}

/*!

 Method seting menu options.

 */

void HsInstalledAppsState::setMenuOptions()

{

    HSMENUTEST_FUNC_ENTRY("HsInstalledAppsState::setMenuOptions");

    mViewOptions->clearActions();

    mViewOptions->addAction(hbTrId("txt_applib_opt_task_switcher"),

                        this, SLOT(openTaskSwitcher()));

    mViewOptions->addAction(hbTrId("txt_applib_opt_installation_log"),

                        this, SLOT(openInstallationLog()));

    if (mModel->rowCount() > 0) {

        HbMenu *sortMenu = mViewOptions->addMenu(

                               hbTrId("txt_applib_opt_sort_by"));

        //Grouped options are exclusive by default.

        QActionGroup *sortGroup = new QActionGroup(this);

        sortGroup->addAction(

            sortMenu->addAction(

                hbTrId("txt_applib_opt_sort_by_sub_latest_on_top"),

                this,

                SLOT(latestOnTopMenuAction())));

        sortGroup->addAction(

            sortMenu->addAction(

                hbTrId("txt_applib_opt_sort_by_sub_oldest_on_top"),

                this,

                SLOT(oldestOnTopMenuAction())));

        foreach(QAction *action, sortMenu->actions()) {

            action->setCheckable(true);

        }

        static const int defaultSortingPosition = 0;

        if(mSortAttribute == Hs::LatestOnTopHsSortAttribute)

            {

            sortGroup->actions().at(defaultSortingPosition + 1)->setChecked(true);

            }

        else {

            sortGroup->actions().at(defaultSortingPosition)->setChecked(true);

        }

    }

    mMenuView->view()->setMenu(mViewOptions);

    HSMENUTEST_FUNC_EXIT("HsInstalledAppsState::setMenuOptions");

}

/*!

 Method seting context menu options.

 \param item the context menu is built for.

 \param flags of the \item.

 */

void HsInstalledAppsState::setContextMenuOptions(HbAbstractViewItem *item, EntryFlags flags)

{

    HbAction *uninstallAction = mContextMenu->addAction(

                                hbTrId("txt_common_menu_delete"));

    HbAction *appDetailsAction(NULL);

    uninstallAction->setData(Hs::UninstallContextAction);

    QSharedPointer<const CaEntry> entry = mModel->entry(item->modelIndex());

    if (!(entry->attribute(Hs::componentIdAttributeName).isEmpty()) &&

            (flags & RemovableEntryFlag) ) {

        appDetailsAction = mContextMenu->addAction(hbTrId(

                                                "txt_common_menu_details"));

        appDetailsAction->setData(Hs::AppDetailsContextAction);

    }

}

/*!

 Destructor.

 */

HsInstalledAppsState::~HsInstalledAppsState()

{

    mMenuView->inactivate();

    mMenuView->view()->setNavigationAction(NULL);

}

/*!

 Slot connected to entered() signal.

 Invoked when a state is entered.

 */

void HsInstalledAppsState::stateEntered()

{

    qDebug("AllAppsState::stateEntered()");

    HSMENUTEST_FUNC_ENTRY("HsInstalledAppsState::stateEntered");

    mMenuView->viewLabel()->setHeading(

            hbTrId("txt_applib_subtitle_installed"));

    if (!mModel) {

        mModel

            = HsMenuService::getInstalledModel(mSortAttribute);

    }

    if (mModel->rowCount() == 0) {

        mMenuView->reset(HsEmptyLabelContext);

    }

    else {

		mMenuView->reset(HsItemViewContext);

        mMenuView->setModel(mModel);

        mMenuView->listView()->scrollTo(

            mModel->index(0));

    }

    setMenuOptions();

    connect(mMenuView.data(),

            SIGNAL(longPressed(HbAbstractViewItem *, QPointF)),

            SLOT(showContextMenu(HbAbstractViewItem *, QPointF)));

    connect(mModel, SIGNAL(empty(bool)),this,

            SLOT(setEmptyLabelVisibility(bool)));

    HsBaseViewState::stateEntered();

    HSMENUTEST_FUNC_EXIT("HsInstalledAppsState::stateEntered");

}

/*!

 Slot invoked when a state is exited.

 */

void HsInstalledAppsState::stateExited()

{

    HSMENUTEST_FUNC_ENTRY("HsInstalledAppsState::stateExited");

    disconnect(mModel, SIGNAL(empty(bool)),this,

               SLOT(setEmptyLabelVisibility(bool)));

    disconnect(mMenuView.data(),

            SIGNAL(longPressed(HbAbstractViewItem *, QPointF)), this,

            SLOT(showContextMenu(HbAbstractViewItem *, QPointF)));

    HsBaseViewState::stateExited();

    HSMENUTEST_FUNC_EXIT("HsInstalledAppsState::stateExited");

    qDebug("AllAppsState::stateExited()");

}

/*!

 Handles button visibility.

 \param visibility indicates whether show or not to show 'empty' label.

 */

void HsInstalledAppsState::setEmptyLabelVisibility(bool visibility)

{

    if(visibility){

        mMenuView->reset(HsEmptyLabelContext);

    } else {

        mMenuView->reset(HsItemViewContext);

        mMenuView->setModel(mModel);

    }

    setMenuOptions();

    mMenuView->activate();

}

/*!

 Open installation log.

 */

void HsInstalledAppsState::openInstallationLog()

{

    machine()->postEvent(

        HsMenuEventFactory::createInstallationLogEvent());

}

/*!

  A Slot called when an action for sorting (latest

  on top) is invoked for Installed.

 */

void HsInstalledAppsState::latestOnTopMenuAction()

{

    // as we geting already reversed list from query

    // we set it to OldestOnTopHsSortAttribute

    mSortAttribute = Hs::OldestOnTopHsSortAttribute;

    mModel->setSort(mSortAttribute);

}

/*!

  A Slot called when an action for sorting (oldest

  on top) is invoked for Installed.

 */

void HsInstalledAppsState::oldestOnTopMenuAction()

{

    // as we geting already reversed list from query

    // we set it to LatestOnTopHsSortAttribute

    mSortAttribute = Hs::LatestOnTopHsSortAttribute;

    mModel->setSort(mSortAttribute);

}