1 /*

     2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: LocationPickerSearchView implementation

    15 *

    16 */

    17 

    18 #include <HbListViewItem>

    19 #include <QStandardItemModel>

    20 #include <HbSearchPanel>

    21 #include <HbListView>

    22 #include <HbTextItem>

    23 #include <HbDocumentLoader>

    24 #include <QGraphicsLinearLayout>

    25 #include <HbMenu>

    26 #include <HbAction>

    27 

    28 #include "locationpickerproxymodel.h"

    29 #include "locationpickersearchview.h"

    30 #include "locationpickerdatamanager.h"

    31 

    32 // ======== MEMBER FUNCTIONS ========

    33 

    34 // ----------------------------------------------------

    35 // LocationPickerSearchView::LocationPickerSearchView()

    36 // ----------------------------------------------------

    37 LocationPickerSearchView::LocationPickerSearchView( HbDocumentLoader &aLoader )

    38     :mProxyModel(NULL),

    39     mModel(NULL),

    40     mListView(NULL),

    41     mSearchPanel(NULL),

    42     mEmptyLabel(NULL),

    43     mVerticalLayout(NULL),

    44     mDocumentLoader(aLoader),

    45 	mLongPressMenu(NULL),

    46 	mSelectAction(NULL)

    47 {

    48 

    49 }

    50 // ----------------------------------------------------

    51 // LocationPickerSearchView::~LocationPickerSearchView()

    52 // ----------------------------------------------------

    53 LocationPickerSearchView::~LocationPickerSearchView()

    54 {

    55     delete mProxyModel;

    56     delete mEmptyLabel;

    57 }

    58 

    59 // ----------------------------------------------------

    60 // LocationPickerSearchView::init()

    61 // ----------------------------------------------------

    62 void LocationPickerSearchView::init( QStandardItemModel *aModel )

    63 {   

    64     mModel = aModel;

    65     //get listview from docml

    66     mListView = qobject_cast<HbListView*>(

    67             mDocumentLoader.findObject(QString("SearchListView")));

    68     if(!mListView)

    69     {

    70         qFatal("Error Reading Docml");   

    71     }

    72     //get search panel from docml

    73     mSearchPanel = qobject_cast<HbSearchPanel*>(

    74             mDocumentLoader.findObject(QString("searchPanel")));

    75     //conect to respective slots

    76     connect(mListView, SIGNAL(activated(const QModelIndex &)), this, SLOT(handleActivated

    77     (const QModelIndex &)));

    78     connect(mListView,SIGNAL(longPressed(HbAbstractViewItem*, const QPointF &)),this,

    79                 SLOT(launchPopUpMenu(HbAbstractViewItem*, const QPointF &)));

    80     connect(mSearchPanel, SIGNAL(exitClicked()),this, SLOT(handleExit()));

    81     connect(mSearchPanel,SIGNAL(criteriaChanged(QString)),this,SLOT(doSearch(QString)));

    82     

    83     //Set graphics size for the list items.

    84     HbListViewItem *hbListItem = new HbListViewItem();

    85     hbListItem->setGraphicsSize(HbListViewItem::Thumbnail);

    86     mListView->setItemPrototype( hbListItem );

    87 

    88     // Create the proxy model.

    89     mProxyModel = new LocationPickerProxyModel();

    90     mProxyModel->setSourceModel(mModel);

    91     mListView->setModel(mProxyModel);

    92 

    93     // set filter properties

    94     mProxyModel->setDynamicSortFilter(TRUE);

    95     mProxyModel->setSortRole(Qt::DisplayRole);

    96     mProxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);

    97     // sort 

    98     mProxyModel->sort(0, Qt::AscendingOrder);

    99 }

   100 

   101 // ----------------------------------------------------

   102 // LocationPickerSearchView::handleExit()

   103 // ----------------------------------------------------

   104 void LocationPickerSearchView::handleExit()

   105 {   

   106     //emit signal to switch the current view

   107     emit switchView();

   108 }

   109 

   110 // ----------------------------------------------------

   111 // LocationPickerSearchView::doSearch()

   112 // ----------------------------------------------------

   113 void LocationPickerSearchView::doSearch( QString aCriteria )

   114 {

   115     // use the string to search

   116     mProxyModel->filterParameterChanged(aCriteria);

   117     mProxyModel->setFilterFixedString(aCriteria);

   118     //if no entries presentdisplay empty text item

   119     if (!mProxyModel->rowCount() )

   120     {

   121         if(!mEmptyLabel)

   122         {    

   123             QGraphicsWidget *widget = NULL;

   124             widget = mDocumentLoader.findWidget(QString("container"));

   125             mVerticalLayout = static_cast<QGraphicsLinearLayout*>(widget->layout());

   126             if(!widget || !mVerticalLayout)

   127             {

   128                 qFatal("Error Reading Docml"); 

   129             }

   130             mVerticalLayout->removeItem(mListView);

   131             mListView->setVisible(false);

   132             mEmptyLabel = new HbTextItem(hbTrId("txt_lint_list_no_results"));

   133             mEmptyLabel->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);

   134             mEmptyLabel->setFontSpec(HbFontSpec(HbFontSpec::Primary));

   135             mEmptyLabel->setAlignment(Qt::AlignCenter);

   136             mVerticalLayout->insertItem(0, mEmptyLabel);

   137             mEmptyLabel->setVisible(true);

   138         }

   139     }

   140     //else display the result

   141     else if (mEmptyLabel)

   142     {   

   143         mVerticalLayout->removeItem(mEmptyLabel);

   144         mEmptyLabel->setVisible(false);

   145         delete mEmptyLabel;

   146         mEmptyLabel=NULL;

   147         mVerticalLayout->insertItem(0, mListView);

   148         mListView->setVisible(true);

   149     }

   150 }

   151 

   152 // ----------------------------------------------------

   153 // LocationPickerSearchView::handleActivated()

   154 // ----------------------------------------------------

   155 void LocationPickerSearchView::handleActivated( const QModelIndex &aIndex )

   156 {

   157     QModelIndex index = mProxyModel->mapToSource(aIndex);

   158     quint32 lm = 0;

   159     getData( index, lm );

   160     //emit item is selectedsignal

   161     emit selectItem( lm );

   162 }

   163 

   164 // ----------------------------------------------------------------------------

   165 // LocationPickerSearchView::getData()

   166 // ----------------------------------------------------------------------------

   167 

   168 void LocationPickerSearchView::getData( QModelIndex aIndex, quint32& aValue )

   169 {

   170     QStandardItem* item = mModel->item( aIndex.row(), aIndex.column() );

   171     QVariant var = item->data( Qt::UserRole );

   172     aValue = var.toUInt();

   173 }

   174 

   175 // -----------------------------------------------------------------------------

   176 // LocationPickerSearchView::launchPopUpMenu()

   177 // -----------------------------------------------------------------------------

   178 void LocationPickerSearchView::launchPopUpMenu(HbAbstractViewItem *aItem, const QPointF &aPoint)

   179 {

   180     mLongPressMenu = new HbMenu();

   181     mLongPressMenu->setTimeout(HbMenu::NoTimeout);

   182     mSelectAction  = mLongPressMenu->addAction(hbTrId("txt_lint_list_select"));

   183     mIndex = aItem->modelIndex();

   184     connect(mSelectAction, SIGNAL(triggered()),this, SLOT(handleLongPress()));

   185     mLongPressMenu->setPreferredPos(aPoint);

   186     connect(mLongPressMenu,SIGNAL(aboutToClose ()),this,SLOT(deleteMenu()));

   187     mLongPressMenu->open();

   188 }

   189 

   190 // -----------------------------------------------------------------------------

   191 // LocationPickerSearchView::handleLongPress()

   192 // -----------------------------------------------------------------------------

   193 void LocationPickerSearchView::handleLongPress()

   194 {

   195     handleActivated(mIndex);

   196 }

   197 

   198 // -----------------------------------------------------------------------------

   199 // LocationPickerSearchView::deleteMenu()

   200 // -----------------------------------------------------------------------------

   201 void LocationPickerSearchView::deleteMenu()

   202 {

   203     mLongPressMenu->deleteLater();

   204     mLongPressMenu = NULL;

   205     mSelectAction->deleteLater();

   206     mSelectAction = NULL;

   207 }