diff -r ecc8def7944a -r 2dc6caa42ec3 emailuis/nmailuiengine/src/nmmessagesearchlistmodel.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/nmailuiengine/src/nmmessagesearchlistmodel.cpp	Fri May 14 15:41:10 2010 +0300
@@ -0,0 +1,173 @@
+/*
+* 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 "nmuiengineheaders.h"
+
+/*!
+    \class NmMessageSearchListModel
+    \brief A proxy model used to filter out messages from the message list model
+           that are not amongst the search results.
+*/
+
+/*!
+    Class constructor.
+*/
+NmMessageSearchListModel::NmMessageSearchListModel(QObject *parent)
+: QSortFilterProxyModel(parent)
+{
+    // No implementation required.
+}
+
+
+/*!
+    Class destructor.
+*/
+NmMessageSearchListModel::~NmMessageSearchListModel()
+{
+    clearSearchResults();
+}
+
+
+/*!
+    Clears search results and removes the accepted source model items from this
+    proxy model.
+*/
+void NmMessageSearchListModel::clearSearchResults()
+{
+    mSearchResults.clear();
+    invalidateFilter();
+}
+
+
+/*!
+    Returns the number of search results i.e. IDs in the container.
+
+    \return The number of search results.
+*/
+int NmMessageSearchListModel::searchResultCount() const
+{
+    return mSearchResults.count();
+}
+
+
+/*!
+    From QSortFilterProxyModel.
+    Returns the data from the source model according to the given proxy index.
+
+    \param index The index of this proxy model.
+    \param role The item role.
+
+    \return The item data wrapped in a QVariant.
+*/
+QVariant NmMessageSearchListModel::data(const QModelIndex &index,
+                                        int role /* = Qt::DisplayRole */) const
+{
+    QVariant retVal;
+    QAbstractItemModel *model = sourceModel();
+
+    if (model) {
+        // Return the data from the source model by mapping the given index
+        // in respect to the source model.
+        QModelIndex sourceIndex = mapToSource(index);
+        retVal = model->data(sourceIndex, role);
+    }
+    else {
+        // Since no source model set, use the base class method implementation.
+        retVal = QSortFilterProxyModel::data(index, role);
+    }
+
+    return retVal;
+}
+
+
+/*!
+    From QSortFilterProxyModel.
+    Filters the items of the source model depending on the current search results.
+
+    \param source_row A source model row index.
+    \param source_parent The parent model index of the row.
+
+    \return True if the row should be accepted to the search list model, false
+            otherwise.
+*/
+bool NmMessageSearchListModel::filterAcceptsRow(int source_row,
+                                                const QModelIndex &source_parent) const
+{
+    bool accept(false);
+
+    // Get the source model.
+    NmMessageListModel *model = qobject_cast<NmMessageListModel*>(sourceModel());
+
+    if (model) {
+        // Extract the model item corresponding the given row and index.
+        QModelIndex listIndex = model->index(source_row, 0, source_parent);
+        QVariant qVariant = model->data(listIndex);
+        NmMessageListModelItem *item = qVariant.value<NmMessageListModelItem*>();
+
+        if (item) {
+            // Get the message ID from the item and compare it to the current
+            // search results.
+            const NmId itemId = item->envelope().messageId();
+
+            if (mSearchResults.contains(itemId)) {
+                // The message ID matches the search result => do accept the row.
+                accept = true;
+            }
+        }
+    }
+
+    return accept;
+}
+
+
+/*!
+    Adds the given message ID to the search results.
+
+    \param messageId The ID to add.
+
+    \return True if the given ID was added, false otherwise.
+*/
+bool NmMessageSearchListModel::addSearchResult(const NmId &messageId)
+{
+    bool resultAdded(false);
+
+    // Make sure not to add the same ID twice.
+    if (!mSearchResults.contains(messageId)) {
+        // Add the given ID to the results.
+        mSearchResults.append(messageId);
+        resultAdded = true;
+
+        // Invalidate the filter in order to update the model. This forces
+        // filterAcceptsRow() to be ran again for each row in the source model.
+        invalidateFilter();
+    }
+
+    return resultAdded;
+}
+
+
+/*!
+    Refreshes the content by forcing the model to re-process the source model
+    items using the current filter (search results).
+*/
+void NmMessageSearchListModel::refreshContent()
+{
+    invalidateFilter();
+}
+
+
+// End of file.