Implement EpisodeProxyModel to filter based on status

src/CMakeLists.txt

@@ -19,6 +19,7 @@ set(SRCS_base
     models/entriesmodel.cpp
     models/queuemodel.cpp
     models/episodemodel.cpp
+    models/episodeproxymodel.cpp
     models/downloadmodel.cpp
     models/errorlogmodel.cpp
     models/podcastsearchmodel.cpp

src/main.cpp

@@ -41,7 +41,7 @@
 #include "kasts-version.h"
 #include "models/downloadmodel.h"
 #include "models/entriesmodel.h"
-#include "models/episodemodel.h"
+#include "models/episodeproxymodel.h"
 #include "models/errorlogmodel.h"
 #include "models/feedsmodel.h"
 #include "models/podcastsearchmodel.h"
@@ -120,7 +120,7 @@ int main(int argc, char *argv[])
 
     qmlRegisterType<FeedsModel>("org.kde.kasts", 1, 0, "FeedsModel");
     qmlRegisterType<QueueModel>("org.kde.kasts", 1, 0, "QueueModel");
-    qmlRegisterType<EpisodeModel>("org.kde.kasts", 1, 0, "EpisodeModel");
+    qmlRegisterType<EpisodeProxyModel>("org.kde.kasts", 1, 0, "EpisodeProxyModel");
     qmlRegisterType<Mpris2>("org.kde.kasts", 1, 0, "Mpris2");
     qmlRegisterType<PodcastSearchModel>("org.kde.kasts", 1, 0, "PodcastSearchModel");
 

src/models/episodeproxymodel.cpp

@@ -0,0 +1,51 @@
+/**
+ * SPDX-FileCopyrightText: 2021 Bart De Vries <bart@mogwai.be>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
+ */
+
+#include "models/episodeproxymodel.h"
+
+EpisodeProxyModel::EpisodeProxyModel()
+    : QSortFilterProxyModel(nullptr)
+{
+    m_currentFilter = NoFilter;
+    m_episodeModel = new EpisodeModel();
+    setSourceModel(m_episodeModel);
+}
+
+EpisodeProxyModel::~EpisodeProxyModel()
+{
+    delete m_episodeModel;
+}
+
+bool EpisodeProxyModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const
+{
+    QModelIndex index = sourceModel()->index(sourceRow, 0, sourceParent);
+
+    switch (m_currentFilter) {
+    case NoFilter:
+        return true;
+    case ReadFilter:
+        return sourceModel()->data(index, EpisodeModel::Roles::ReadRole).value<bool>();
+    case NotReadFilter:
+        return !sourceModel()->data(index, EpisodeModel::Roles::ReadRole).value<bool>();
+    case NewFilter:
+        return sourceModel()->data(index, EpisodeModel::Roles::NewRole).value<bool>();
+    case NotNewFilter:
+        return !sourceModel()->data(index, EpisodeModel::Roles::NewRole).value<bool>();
+    default:
+        return true;
+    }
+}
+
+EpisodeProxyModel::FilterType EpisodeProxyModel::filterType() const
+{
+    return m_currentFilter;
+}
+
+void EpisodeProxyModel::setFilterType(FilterType type)
+{
+    m_currentFilter = type;
+    Q_EMIT filterTypeChanged(m_currentFilter);
+}

src/models/episodeproxymodel.h

@@ -0,0 +1,43 @@
+/**
+ * SPDX-FileCopyrightText: 2021 Bart De Vries <bart@mogwai.be>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
+ */
+
+#pragma once
+
+#include <QSortFilterProxyModel>
+
+#include "models/episodemodel.h"
+
+class EpisodeProxyModel : public QSortFilterProxyModel
+{
+    Q_OBJECT
+
+public:
+    enum FilterType {
+        NoFilter,
+        ReadFilter,
+        NotReadFilter,
+        NewFilter,
+        NotNewFilter,
+    };
+    Q_ENUM(FilterType)
+
+    Q_PROPERTY(FilterType filterType READ filterType WRITE setFilterType NOTIFY filterTypeChanged)
+
+    explicit EpisodeProxyModel();
+    ~EpisodeProxyModel();
+
+    bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override;
+
+    FilterType filterType() const;
+    void setFilterType(FilterType type);
+
+Q_SIGNALS:
+    void filterTypeChanged(FilterType filter);
+
+private:
+    EpisodeModel *m_episodeModel;
+    FilterType m_currentFilter;
+};

src/qml/EpisodeListPage.qml

@@ -17,8 +17,6 @@ Kirigami.ScrollablePage {
 
     title: i18n("Episode List")
 
-    property var episodeType: EpisodeModel.All
-
     supportsRefreshing: true
     onRefreshingChanged: {
         if(refreshing) {
@@ -52,15 +50,15 @@ Kirigami.ScrollablePage {
         }
     }
 
-    EpisodeModel {
-        id: episodeModel
+    EpisodeProxyModel {
+        id: episodeProxyModel
     }
 
     ListView {
         id: episodeList
         anchors.fill: parent
         visible: count !== 0
-        model: episodeModel
+        model: episodeProxyModel
 
         delegate: Kirigami.DelegateRecycler {
             width: episodeList.width