diff --git a/src/smartlistmodel.h b/src/smartlistmodel.h
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+++ b/src/smartlistmodel.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2017-2020 by Savoir-faire Linux
+ * Author: Anthony Léonard <anthony.leonard@savoirfairelinux.com>
+ * Author: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com>
+ * Author: Mingrui Zhang <mingrui.zhang@savoirfairelinux.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "api/account.h"
+#include "api/contact.h"
+#include "api/conversation.h"
+#include "api/conversationmodel.h"
+
+#include <QAbstractItemModel>
+
+using namespace lrc::api;
+
+class SmartListModel : public QAbstractListModel
+{
+    Q_OBJECT
+public:
+    using AccountInfo = lrc::api::account::Info;
+    using ConversationInfo = lrc::api::conversation::Info;
+    using ContactInfo = lrc::api::contact::Info;
+
+    enum class Type { CONVERSATION, CONFERENCE, TRANSFER, COUNT__ };
+
+    enum Role {
+        DisplayName = Qt::UserRole + 1,
+        DisplayID,
+        Picture,
+        Presence,
+        URI,
+        UnreadMessagesCount,
+        LastInteractionDate,
+        LastInteraction,
+        LastInteractionType,
+        ContactType,
+        UID,
+        ContextMenuOpen,
+        InCall,
+        IsAudioOnly,
+        CallStackViewShouldShow,
+        CallStateStr,
+        SectionName,
+        AccountId,
+        Draft
+    };
+
+    explicit SmartListModel(const QString &accId,
+                            QObject *parent = 0,
+                            SmartListModel::Type listModelType = Type::CONVERSATION,
+                            const QString &convUid = {});
+    ~SmartListModel();
+
+    /*
+     * QAbstractListModel.
+     */
+    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+    int columnCount(const QModelIndex &parent) const override;
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+    QHash<int, QByteArray> roleNames() const override;
+    QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) const;
+    QModelIndex parent(const QModelIndex &child) const;
+    Qt::ItemFlags flags(const QModelIndex &index) const;
+
+    Q_INVOKABLE void setAccount(const QString &accId);
+    Q_INVOKABLE void setConferenceableFilter(const QString &filter = {});
+    Q_INVOKABLE void toggleSection(const QString &section);
+    Q_INVOKABLE int currentUidSmartListModelIndex();
+
+private:
+    QString accountId_;
+
+    QVariant getConversationItemData(const ConversationInfo &item,
+                                     const AccountInfo &accountInfo,
+                                     int role) const;
+    /*
+     * List sectioning.
+     */
+    QString convUid_;
+    Type listModelType_;
+    QMap<QString, bool> sectionState_;
+    QMap<ConferenceableItem, ConferenceableValue> conferenceables_;
+};
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