/*

 * 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.h>

#include <hbview.h>

#include <hblistview.h>

#include <hbaction.h>

#include <hbmenu.h>

#include <hbabstractviewitem.h>

#include <hsmenueventfactory.h>

#include <hbinstance.h>

#include <caentry.h>

#include <hbsearchpanel.h>

#include "hsmenuitemmodel.h"

#include "hsmenuview.h"

#include "cadefs.h"

#include "hsallappsstate.h"

#include "hsaddappstocollectionstate.h"

#include "hsapp_defs.h"

#include "hsmenumodetransition.h"

HsAllAppsState::HsAllAppsState(HsMenuView &menuView, QState *parent) :

    QState(parent), mSortAttribute(AscendingNameHsSortAttribute),

    mCollectionsSortAttribute(LatestOnTopHsSortAttribute),

    mMenuView(menuView), mAllAppsModel(0)

{

    construct();

}

void HsAllAppsState::construct()

{

    HSMENUTEST_FUNC_ENTRY("HsAllAppsState::construct");

    QState *initialState = new QState(this);

    setInitialState(initialState);

    QState *addModeState = new QState(this);

    connect(addModeState, SIGNAL(entered()),SLOT(addModeEntered()));

    QState *normalModeState = new QState(this);

    connect(normalModeState, SIGNAL(entered()),SLOT(normalModeEntered()));

    initialState->addTransition(new HsMenuModeTransition(

                                    mMenuView, NormalHsMenuMode, normalModeState));

    initialState->addTransition(new HsMenuModeTransition(

                                    mMenuView, AddHsMenuMode, addModeState));

    connect(this, SIGNAL(entered()),SLOT(stateEntered()));

    connect(this, SIGNAL(exited()),SLOT(stateExited()));

    mAllAppsModel = HsMenuService::getAllApplicationsModel(mSortAttribute);

    HSMENUTEST_FUNC_EXIT("HsAllAppsState::construct");

}

void HsAllAppsState::setMenuOptions()

{

    HSMENUTEST_FUNC_ENTRY("HsAllAppsState::setMenuOptions");

    HbMenu *const mOptions = new HbMenu();

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

    mOptions->addAction(hbTrId("txt_applib_opt_add_to_collection"),

    HbMenu *const sortMenu = mOptions->addMenu(hbTrId(

                                 "txt_applib_opt_sort_by"));

    //Grouped options are exclusive by default.

    QActionGroup *sortGroup = new QActionGroup(mOptions);

    sortGroup->addAction(

        sortMenu->addAction(hbTrId("txt_applib_opt_sub_ascending"),

    sortGroup->addAction(

        sortMenu->addAction(hbTrId("txt_applib_opt_sub_descending"),

    mOptions->setParent(this);

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

        action->setCheckable(true);

    }

    int currentSortingPosition(-1);

    switch (mSortAttribute) {

    case AscendingNameHsSortAttribute:

        currentSortingPosition = 0;

        break;

    case DescendingNameHsSortAttribute:

        currentSortingPosition = 1;

        break;

    default:

        break;

    }

    if (currentSortingPosition >= 0) {

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

    }

    mMenuView.view()->setMenu(mOptions);

    HSMENUTEST_FUNC_EXIT("HsAllAppsState::setMenuOptions");

}

HsAllAppsState::~HsAllAppsState()

{

    delete mAllAppsModel;

}

void HsAllAppsState::scrollToBeginning()

{

    mBookmark = mAllAppsModel->index(0);

}

void HsAllAppsState::stateEntered()

{

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

    HSMENUTEST_FUNC_ENTRY("HsAllAppsState::stateEntered");

    mMenuView.setModel(mAllAppsModel);

    mMenuView.scrollTo(mBookmark, HbAbstractItemView::PositionAtTop);

    HSMENUTEST_FUNC_EXIT("HsAllAppsState::stateEntered");

}

void HsAllAppsState::normalModeEntered()

{

    setMenuOptions();

    connect(&mMenuView, SIGNAL(activated(QModelIndex)),

            SLOT(listItemActivated(QModelIndex)));

    connect(&mMenuView, SIGNAL(longPressed(HbAbstractViewItem *, QPointF)),

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

}

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

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

//

void HsAllAppsState::addModeEntered()

{

    connect(&mMenuView, SIGNAL(activated(QModelIndex)),

            SLOT(addActivated(QModelIndex)));

    connect(&mMenuView, SIGNAL(longPressed(HbAbstractViewItem *, QPointF)),

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

}

void HsAllAppsState::stateExited()

{

    HSMENUTEST_FUNC_ENTRY("HsAllAppsState::stateExited");

    mBookmark = mMenuView.firstVisibleItemIndex();

    mMenuView.disconnect(this);

    mMenuView.view()->setMenu(NULL);

    HSMENUTEST_FUNC_EXIT("HsAllAppsState::stateExited");

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

}

/*!

 Open task switcher.

 \retval true if operation is successful.

 */

bool HsAllAppsState::openTaskSwitcher()

{

    return HsMenuService::launchTaskSwitcher();

}

void HsAllAppsState::listItemActivated(const QModelIndex &index)

{

    HSMENUTEST_FUNC_ENTRY("HsAllAppsState::listItemActivated");

    if (entry->entryTypeName() == widgetTypeName()) {

        machine()->postEvent(

            HsMenuEventFactory::createPreviewHSWidgetEvent(

                entry->id(), entry->entryTypeName(), entry->attribute(

                    widgetUriAttributeName()), entry->attribute(

                    widgetLibraryAttributeName())));

        const int itemId = index.data(CaItemModel::IdRole).toInt();

        HsMenuService::touch(itemId);

    } else {

        QVariant data = mAllAppsModel->data(index, CaItemModel::IdRole);

        HsMenuService::executeAction(data.toInt());

    }

    mMenuView.setSearchPanelVisible(false);

    HSMENUTEST_FUNC_EXIT("HsAllAppsState::listItemActivated");

}

void HsAllAppsState::addActivated(const QModelIndex &index)

{

    HSMENUTEST_FUNC_ENTRY("HsAllAppsState::addActivated");

    addToHomeScreen(index);

    machine()->postEvent(

        HsMenuEventFactory::createOpenHomeScreenEvent());

    HSMENUTEST_FUNC_EXIT("HsAllAppsState::addActivated");

}

/*!

 Handles long-item-pressed event in all apps view by showing context menu

 */

void HsAllAppsState::listItemLongPressed(HbAbstractViewItem *item,

        const QPointF &coords)

{

    HSMENUTEST_FUNC_ENTRY("HsAllAppsState::listItemLongPressed");

    // create context menu

    HbMenu *menu = new HbMenu();

    HbAction *addToHomeScreenAction = menu->addAction(hbTrId(

                                          "txt_applib_menu_add_to_home_screen"));

    HbAction *addToCollectionAction = menu->addAction(hbTrId(

                                          "txt_applib_menu_add_to_collection"));

    HbAction *uninstallAction = menu->addAction(hbTrId(

                                    "txt_common_menu_delete"));

    // check conditions and hide irrelevant menu items

    EntryFlags flags = item->modelIndex().data(

                           CaItemModel::FlagsRole).value<EntryFlags> ();

    if (!(flags & RemovableEntryFlag)) {

        uninstallAction->setVisible(false);

    }

    // choose proper action

    if (HbAction *selectedAction = menu->exec(coords)) {

        if (selectedAction == addToHomeScreenAction) {

            addToHomeScreen(item->modelIndex());

        } else if (selectedAction == addToCollectionAction) {

            // Addding a specific application to

            // an existing collection via item specific menu.

            const int itemId =

                item->modelIndex().data(CaItemModel::IdRole).toInt();

            machine()->postEvent(

                HsMenuEventFactory::createAddAppsFromApplicationsViewEvent(

                    mSortAttribute, mCollectionsSortAttribute, itemId));

        } else if (selectedAction == uninstallAction) {

            const int itemId =

                item->modelIndex().data(CaItemModel::IdRole).toInt();

            HsMenuService::executeAction(itemId, removeActionIdentifier());

        }

    }

    delete menu;

    HSMENUTEST_FUNC_EXIT("HsAllAppsState::listItemLongPressed");

}

void HsAllAppsState::addLongPressed(HbAbstractViewItem *item,

                                    const QPointF &coords)

{

    Q_UNUSED(coords);

    HSMENUTEST_FUNC_ENTRY("HsAllAppsState::addLongPressed");

    addToHomeScreen(item->modelIndex());

    machine()->postEvent(

        HsMenuEventFactory::createOpenHomeScreenEvent());

    HSMENUTEST_FUNC_EXIT("HsAllAppsState::addLongPressed");

}

void HsAllAppsState::addToCollection()

{

    // Add one/many applications to

    // a new/an existing collection via the All view

    machine()->postEvent(

        HsMenuEventFactory::createAddAppsFromApplicationsViewEvent(

            mSortAttribute, mCollectionsSortAttribute));

}

/*!

 Triggers event so that a state adding to Home Screen is reached

 \param index of an item to be added to homescreen

 \retval void

 */

void HsAllAppsState::addToHomeScreen(const QModelIndex &index)

{

    HSMENUTEST_FUNC_ENTRY("HsAllAppsState::addToHomeScreen");

    machine()-> postEvent(HsMenuEventFactory::createAddToHomeScreenEvent(

    HSMENUTEST_FUNC_EXIT("HsAllAppsState::addToHomeScreen");

}

void HsAllAppsState::ascendingMenuAction()

{

    HSMENUTEST_FUNC_ENTRY("HsAllAppsState::ascendingMenuAction");

    mSortAttribute = AscendingNameHsSortAttribute;

    mAllAppsModel->setSort(mSortAttribute);

    HSMENUTEST_FUNC_EXIT("HsAllAppsState::ascendingMenuAction");

}

void HsAllAppsState::collectionsSortOrder(

    HsSortAttribute sortOrder)

{

    mCollectionsSortAttribute = sortOrder;

}

void HsAllAppsState::descendingMenuAction()

{

    HSMENUTEST_FUNC_ENTRY("HsAllAppsState::descendingMenuAction");

    mSortAttribute = DescendingNameHsSortAttribute;

    mAllAppsModel->setSort(mSortAttribute);

    HSMENUTEST_FUNC_EXIT("HsAllAppsState::descendingMenuAction");

}