/*

 * 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 Collections state.

 *

 */

#include <QScopedPointer>

#include <QStateMachine>

#include <HbView>

#include <HbListView>

#include <HbMainWindow>

#include <HbMenu>

#include <HbAction>

#include <HbAbstractViewItem>

#include <HbInstance>

#include <HbSearchPanel>

#include <hsmenueventfactory.h>

#include "hsmenumodewrapper.h"

#include "hsmenuviewbuilder.h"

#include "hsmenuitemmodel.h"

#include "cadefs.h"

#include "hsallcollectionsstate.h"

#include "hsaddappstocollectionstate.h"

#include "hsmenumodetransition.h"

/*!

 \class HsAllCollectionsState

 \ingroup group_hsmenustateplugin

 \brief All Collections State.

 Displays all collections present on the device.

 \lib ?library

 \see StateMachine

 */

/*!

 \var HsAllCollectionsState::mSortAttribute

 Sort order

 */

/*!

 \var HsAllCollectionsState::mMenuView

 Wrapper for All Collections View.

 */

/*!

 \var HsAllCollectionsState::mAllCollectionsModel

 Item Model for the List.

 Own.

 */

/*!

 \fn void HsAllCollectionsState::sortOrderChanged(HsSortAttribute sortAttribute);

 Signal emitted when sort order is changed.

 \param sortOrder new sort order.

 */

/*!

 Constructor.

 \param menuViewBuilder Menu view builder.

 \param menuMode reference to object representing menu mode (add mode on/add mode off).

 \param parent Owner.

 */

HsAllCollectionsState::HsAllCollectionsState(

    HsMenuViewBuilder &menuViewBuilder,

    HsMenuModeWrapper &menuMode,

    QState *parent):

    QState(parent),

    mSortAttribute(CustomHsSortAttribute),

    mMenuView(menuViewBuilder, HsAllCollectionsContext),

    mMenuMode(menuMode),

{

    construct();

}

/*!

 Constructs contained objects.

 */

void HsAllCollectionsState::construct()

{

    HSMENUTEST_FUNC_ENTRY("HsAllCollectionsState::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()));

    connect(normalModeState, SIGNAL(exited()),SLOT(normalModeExited()));

    initialState->addTransition(new HsMenuModeTransition(

                                    mMenuMode, NormalHsMenuMode, normalModeState));

    initialState->addTransition(new HsMenuModeTransition(

                                    mMenuMode, AddHsMenuMode, addModeState));

    const QString parentName =

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

    setObjectName(parentName + "/allcollectionsstate");

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

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

    mSecondarySoftkeyAction = new HbAction(Hb::BackNaviAction, this);

    mMenuView.view()->setNavigationAction(

        mSecondarySoftkeyAction);

    connect(mSecondarySoftkeyAction, SIGNAL(triggered()),

            SIGNAL(toAppLibraryState()));

    mAllCollectionsModel = HsMenuService::getAllCollectionsModel(

                               mSortAttribute);

    mMenuView.setModel(mAllCollectionsModel);

    HSMENUTEST_FUNC_EXIT("HsAllCollectionsState::construct");

}

/*!

 Creates and installs menu options for the view

 */

void HsAllCollectionsState::setMenuOptions()

{

    HSMENUTEST_FUNC_ENTRY("HsAllCollectionsState::setMenuOptions");

    QScopedPointer<HbMenu> viewOptions(new HbMenu);

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

                           this,

                           SLOT(openTaskSwitcher()));

    viewOptions->addAction(hbTrId("txt_applib_opt_new_collection"),

                           this, SLOT(createNewCollection()));

    HbMenu *const sortMenu = viewOptions->addMenu(

                                 hbTrId("txt_applib_opt_sort_by"));

    //Grouped options are exclusive by default.

    QActionGroup *sortGroup = new QActionGroup(viewOptions.data());

    sortGroup->addAction(sortMenu->addAction(

                             hbTrId("txt_applib_opt_sub_custom"),

                             this, SLOT(customMenuAction())));

    sortGroup->addAction(sortMenu->addAction(

                             hbTrId("txt_applib_opt_sub_ascending"),

                             this, SLOT(ascendingMenuAction())));

    sortGroup->addAction(sortMenu->addAction(

                             hbTrId("txt_applib_opt_sub_descending"),

                             this, SLOT(descendingMenuAction())));

    if (mSortAttribute == CustomHsSortAttribute) {

        viewOptions->addAction(hbTrId("txt_applib_opt_arrange"),

                               this, SLOT(createArrangeCollection()));

    }

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

        action->setCheckable(true);

    }

    switch (mSortAttribute) {

    case AscendingNameHsSortAttribute:

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

        break;

    case DescendingNameHsSortAttribute:

        sortGroup->actions().at(2)->setChecked(true);

        break;

    case CustomHsSortAttribute:

    default:

        sortGroup->actions().at(0)->setChecked(true);

        break;

    }

    mMenuView.view()->setMenu(viewOptions.take());

    HSMENUTEST_FUNC_EXIT("HsAllCollectionsState::setMenuOptions");

}

/*!

 Destructor.

 */

HsAllCollectionsState::~HsAllCollectionsState()

{

    mMenuView.setModel(NULL);

    delete mAllCollectionsModel;

}

/*!

 Populates all folders

 */

void HsAllCollectionsState::scrollToBeginning()

{

    mMenuView.listView()->scrollTo(

        mAllCollectionsModel->index(0), HbAbstractItemView::PositionAtTop);

}

/*!

 Slot invoked when a state is entered.

 */

void HsAllCollectionsState::stateEntered()

{

    qDebug("AllCollectionsState::stateEntered()");

    HSMENUTEST_FUNC_ENTRY("HsAllCollectionsState::stateEntered");

    mMenuView.activate();

    HSMENUTEST_FUNC_EXIT("HsAllCollectionsState::stateExited");

}

/*!

 Slot invoked when normal mode is entered.

*/

void HsAllCollectionsState::normalModeEntered()

{

    setMenuOptions();

    connect(&mMenuView,

            SIGNAL(activated(QModelIndex)),

            SLOT(listItemActivated(QModelIndex)));

    connect(&mMenuView,

            SIGNAL(longPressed(HbAbstractViewItem *, QPointF)),

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

}

/*!

 Slot invoked when normal mode is exited.

*/

void HsAllCollectionsState::normalModeExited()

{

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

}

/*!

 Slot invoked when add mode is entered.

 */

void HsAllCollectionsState::addModeEntered()

{

    connect(&mMenuView,

            SIGNAL(activated(QModelIndex)),

            SLOT(addActivated(QModelIndex)));

    connect(&mMenuView,

            SIGNAL(longPressed(HbAbstractViewItem *, QPointF)),

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

}

/*!

 Slot invoked when a state is exited.

 */

void HsAllCollectionsState::stateExited()

{

    HSMENUTEST_FUNC_ENTRY("HsAllCollectionsState::stateExited");

    mMenuView.setSearchPanelVisible(false);

    mMenuView.disconnect(this);

    mMenuView.inactivate();

    if (mContextMenu)

        mContextMenu->close();

    HSMENUTEST_FUNC_EXIT("HsAllCollectionsState::stateExited");

    qDebug("AllCollectionsState::stateExited()");

}

/*!

 Open task switcher.

 \retval true if operation is successful.

 */

bool HsAllCollectionsState::openTaskSwitcher()

{

    return HsMenuService::launchTaskSwitcher();

}

/*!

 Slot connected to List widget in normal mode.

 \param index Model index of the activated item.

 */

void HsAllCollectionsState::listItemActivated(const QModelIndex &index)

{

    HSMENUTEST_FUNC_ENTRY("HsAllCollectionsState::listItemActivated");

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

    int id = data.toInt();

    QString collectionType =

        mAllCollectionsModel->data(index, CaItemModel::TypeRole).toString();

    qDebug("AllCollectionsState::listItemActivated - MCS ID: %d",

           data.toInt());

    mMenuView.setSearchPanelVisible(false);

    machine()->postEvent(HsMenuEventFactory::createOpenCollectionEvent(id,

                         collectionType));

    HSMENUTEST_FUNC_EXIT("HsAllCollectionsState::listItemActivated");

}

/*!

 Slot connected to List widget in add mode.

 \param index Model index of the activated item.

 */

void HsAllCollectionsState::addActivated(const QModelIndex &index)

{

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

    machine()->postEvent(

        HsMenuEventFactory::createAddToHomeScreenEvent(

            itemId, mMenuMode.getHsMenuMode()));

}

/*!

 Slot connected to List widget in add mode.

 Called when item long pressed.

 \param item View item.

 \param coords Press point coordinates.

 */

void HsAllCollectionsState::addLongPressed(HbAbstractViewItem *item,

        const QPointF &coords)

{

    Q_UNUSED(coords);

    const int itemId = item->modelIndex().data(CaItemModel::IdRole).toInt();

    machine()->postEvent(

        HsMenuEventFactory::createAddToHomeScreenEvent(itemId,

                mMenuMode.getHsMenuMode()));

}

/*!

 Slot connected to List widget in normal mode.

 Called when item long pressed.

 \param item View item.

 \param coords Press point coordinates.

 */

void HsAllCollectionsState::listItemLongPressed(HbAbstractViewItem *item,

        const QPointF &coords)

{

    HSMENUTEST_FUNC_ENTRY("HsAllCollectionsState::listItemLongPressed");

    const int itemId = item->modelIndex().data(CaItemModel::IdRole).toInt();

    mContextMenu = new HbMenu;

    // create context menu

    HbAction *addShortcutAction = mContextMenu->addAction(hbTrId(

                                      "txt_applib_menu_add_to_home_screen"));

    addShortcutAction->setData(AddToHomeScreenContextAction);

    HbAction *renameAction = NULL;

    HbAction *deleteAction = NULL;

    EntryFlags flags = item->modelIndex().data(CaItemModel::FlagsRole).value<

                       EntryFlags> ();

    if ((flags & RemovableEntryFlag)) {

        renameAction = mContextMenu->addAction(

                           hbTrId("txt_common_menu_rename_item"));

        renameAction->setData(RenameContextAction);

        deleteAction = mContextMenu->addAction(hbTrId("txt_common_menu_delete"));

        deleteAction->setData(DeleteContextAction);

    }

    mContextModelIndex = item->modelIndex();

    mContextMenu->setPreferredPos(coords);

    mContextMenu->setAttribute(Qt::WA_DeleteOnClose);

    mContextMenu->open(this, SLOT(contextMenuAction(HbAction*)));

    HSMENUTEST_FUNC_EXIT("HsAllCollectionsState::listItemLongPressed");

}

/*!

 Handles context menu actions

 */

void HsAllCollectionsState::contextMenuAction(HbAction *action)

{

    HsContextAction command = 

        static_cast<HsContextAction>(action->data().toInt());

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

    switch (command) {

        case AddToHomeScreenContextAction:

            machine()->postEvent(

                HsMenuEventFactory::createAddToHomeScreenEvent(

                    itemId, mMenuMode.getHsMenuMode()));

            break;

        case RenameContextAction:

            machine()->postEvent(

                HsMenuEventFactory::createRenameCollectionEvent(itemId));

            break;

        case DeleteContextAction:

             machine()->postEvent(

                HsMenuEventFactory::createDeleteCollectionEvent(itemId));

            break;      

        default:

            break;

    }

    mMenuView.setSearchPanelVisible(false);

}

/*!

 Slot connected to constructMenu.

 */

void HsAllCollectionsState::createNewCollection()

{

    // Adding a new collection via the Collections view

    machine()->postEvent(HsMenuEventFactory::createNewCollectionEvent());

}

/*!

 Slot connected to constructMenu.

 */

void HsAllCollectionsState::createArrangeCollection()

{

    // Arrange collection via the Arrange view

    int topItemId(0);

    const QList<HbAbstractViewItem *> array =

        mMenuView.listView()->visibleItems();

    if (array.count() >= 1) {

        QModelIndex idx = array[0]->modelIndex();

        topItemId = idx.data(CaItemModel::IdRole).toInt();

    }

    machine()->postEvent(

        HsMenuEventFactory::createArrangeCollectionEvent(topItemId));

}

/*!

 Menu custom sort action slot.

 */

void HsAllCollectionsState::customMenuAction()

{

    HSMENUTEST_FUNC_ENTRY("HsAllCollectionsState::customMenuAction");

    mSortAttribute = CustomHsSortAttribute;

    setMenuOptions();

    mAllCollectionsModel->setSort(mSortAttribute);

    emit sortOrderChanged(mSortAttribute);

    HSMENUTEST_FUNC_EXIT("HsAllCollectionsState::customMenuAction");

}

/*!

 Menu ascending sort action slot.

 */

void HsAllCollectionsState::ascendingMenuAction()

{

    HSMENUTEST_FUNC_ENTRY("HsAllCollectionsState::ascendingMenuAction");

    mSortAttribute = AscendingNameHsSortAttribute;

    setMenuOptions();

    mAllCollectionsModel->setSort(mSortAttribute);

    emit sortOrderChanged(mSortAttribute);

    HSMENUTEST_FUNC_EXIT("HsAllCollectionsState::ascendingMenuAction");

}

/*!

 Menu descending sort action slot.

 */

void HsAllCollectionsState::descendingMenuAction()

{

    HSMENUTEST_FUNC_ENTRY("HsAllCollectionsState::descendingMenuAction");

    mSortAttribute = DescendingNameHsSortAttribute;

    setMenuOptions();

    mAllCollectionsModel->setSort(mSortAttribute);

    emit sortOrderChanged(mSortAttribute);

    HSMENUTEST_FUNC_EXIT("HsAllCollectionsState::descendingMenuAction");

}