♻️ refactor

WallReel/Core/CMakeLists.txt

@@ -3,9 +3,11 @@ qt_add_qml_module(${CORELIB_NAME}
     URI ${COREMODULE_URI}
     VERSION ${MODULE_VERSION_MAJOR}.${MODULE_VERSION_MINOR}
     SOURCES
+    Provider/carousel.hpp Provider/bootstrap.hpp
     Cache/manager.hpp Cache/manager.cpp
     Image/data.hpp Image/data.cpp
-    Image/model.hpp Image/model.cpp
+    Image/model.hpp Image/model.cpp Image/proxymodel.cpp
+    Image/manager.hpp Image/manager.cpp
     Palette/data.hpp
     Palette/manager.hpp Palette/manager.cpp
     Palette/domcolor.hpp Palette/domcolor.cpp

WallReel/Core/Cache/manager.cpp

@@ -38,12 +38,6 @@ Manager::~Manager() {
     }
     WR_DEBUG(u"Closing %1 cache db connection(s)"_s.arg(names.size()));
     for (const QString& connName : std::as_const(names)) {
-        {
-            // Scope: release the QSqlDatabase copy before removeDatabase()
-            QSqlDatabase db = QSqlDatabase::database(connName, false);
-            if (db.isOpen())
-                db.close();
-        }
         QSqlDatabase::removeDatabase(connName);
     }
 }

WallReel/Core/Config/data.hpp

@@ -46,8 +46,8 @@
 // style.window_width           number  750     Initial window width
 // style.window_height          number  500     Initial window height
 //
-// sort.type                    string  "name"  Sorting type: "none", "name", "date", "size"
-// sort.reverse                 boolean false   Whether to reverse the sorting order
+// sort.type                    string  "date"  Sorting type: "name", "date", "size"
+// sort.descending              boolean true    Whether to reverse the sorting order
 //                                              Normal order: name: lexicographical, e.g. "a.jpg" before "b.jpg"
 //                                                            date: older before newer
 //                                                            size: smaller before larger
@@ -57,12 +57,38 @@ namespace WallReel::Core::Config {
 inline const QString s_DefaultConfigFileName = "config.json";
 
 enum class SortType : int {
-    None = 0,  // "none"
-    Name,      // "name"
-    Date,      // "date"
-    Size,      // "size"
+    Name,  // "name"
+    Date,  // "date"
+    Size,  // "size"
 };
 
+inline const QStringList s_availableSortTypes = {"Name", "Date", "Size"};
+
+inline QString sortTypeToString(SortType type) {
+    switch (type) {
+        case SortType::Name:
+            return "Name";
+        case SortType::Date:
+            return "Date";
+        case SortType::Size:
+            return "Size";
+        default:
+            return "Date";
+    }
+}
+
+inline SortType stringToSortType(const QString& str) {
+    if (str.compare("name", Qt::CaseInsensitive) == 0) {
+        return SortType::Name;
+    } else if (str.compare("date", Qt::CaseInsensitive) == 0) {
+        return SortType::Date;
+    } else if (str.compare("size", Qt::CaseInsensitive) == 0) {
+        return SortType::Size;
+    } else {
+        return SortType::Date;  // default
+    }
+}
+
 struct WallpaperConfigItems {
     struct WallpaperDirConfigItem {
         QString path;
@@ -118,8 +144,8 @@ struct StyleConfigItems {
 };
 
 struct SortConfigItems {
-    SortType type = SortType::Name;
-    bool reverse  = false;
+    SortType type   = SortType::Date;
+    bool descending = true;
 };
 
 }  // namespace WallReel::Core::Config

WallReel/Core/Config/manager.cpp

@@ -298,9 +298,7 @@ void WallReel::Core::Config::Manager::_loadSortConfig(const QJsonObject& root) {
         const auto& val = config["type"];
         if (val.isString()) {
             QString type = val.toString().toLower();
-            if (type == "none") {
-                m_sortConfig.type = SortType::None;
-            } else if (type == "name") {
+            if (type == "name") {
                 m_sortConfig.type = SortType::Name;
             } else if (type == "date") {
                 m_sortConfig.type = SortType::Date;
@@ -311,10 +309,10 @@ void WallReel::Core::Config::Manager::_loadSortConfig(const QJsonObject& root) {
             }
         }
     }
-    if (config.contains("reverse")) {
-        const auto& val = config["reverse"];
+    if (config.contains("descending")) {
+        const auto& val = config["descending"];
         if (val.isBool()) {
-            m_sortConfig.reverse = val.toBool();
+            m_sortConfig.descending = val.toBool();
         }
     }
 }

WallReel/Core/Config/manager.hpp

@@ -19,12 +19,6 @@ namespace WallReel::Core::Config {
 class Manager : public QObject {
     Q_OBJECT
 
-    Q_PROPERTY(int imageWidth READ getImageWidth CONSTANT)
-    Q_PROPERTY(int imageHeight READ getImageHeight CONSTANT)
-    Q_PROPERTY(double imageFocusScale READ getImageFocusScale CONSTANT)
-    Q_PROPERTY(int windowWidth READ getWindowWidth CONSTANT)
-    Q_PROPERTY(int windowHeight READ getWindowHeight CONSTANT)
-
   public:
     /**
      * @brief Construct a new Manager object
@@ -63,23 +57,6 @@ class Manager : public QObject {
 
     const SortConfigItems& getSortConfig() const { return m_sortConfig; }
 
-    // Getters for Q_PROPERTY
-
-    int getImageWidth() const { return m_styleConfig.imageWidth; }
-
-    int getImageHeight() const { return m_styleConfig.imageHeight; }
-
-    double getImageFocusScale() const { return m_styleConfig.imageFocusScale; }
-
-    int getWindowWidth() const { return m_styleConfig.windowWidth; }
-
-    int getWindowHeight() const { return m_styleConfig.windowHeight; }
-
-    /**
-     * @brief A quick snippet to get the focused image size as a QSize
-     *
-     * @return QSize
-     */
     QSize getFocusImageSize() const {
         return QSize{m_styleConfig.imageWidth, m_styleConfig.imageHeight} * m_styleConfig.imageFocusScale;
     }

WallReel/Core/Image/manager.cpp

@@ -0,0 +1,113 @@
+#include "manager.hpp"
+
+#include <QFuture>
+#include <QtConcurrent>
+
+#include "data.hpp"
+#include "logger.hpp"
+
+WALLREEL_DECLARE_SENDER("ImageManager")
+
+WallReel::Core::Image::Manager::Manager(
+    Cache::Manager& cacheMgr,
+    const QSize& thumbnailSize,
+    QObject* parent)
+    : QObject(parent),
+      m_cacheMgr(cacheMgr),
+      m_thumbnailSize(thumbnailSize) {
+    m_dataModel  = new Model(this);
+    m_proxyModel = new ProxyModel(this);
+    m_proxyModel->setSourceModel(m_dataModel);
+
+    connect(
+        &m_watcher,
+        &QFutureWatcher<Data*>::finished,
+        this,
+        &Manager::_onProcessingFinished);
+    connect(
+        &m_progressUpdateTimer,
+        &QTimer::timeout,
+        this,
+        [this]() {
+            emit processedCountChanged();
+        });
+}
+
+WallReel::Core::Image::Manager::~Manager() {
+    m_watcher.cancel();
+    m_watcher.waitForFinished();
+}
+
+void WallReel::Core::Image::Manager::loadAndProcess(const QStringList& paths) {
+    if (m_isLoading) {
+        WR_WARN("Already loading images. Ignoring new load request.");
+        return;
+    }
+    m_isLoading = true;
+    emit isLoadingChanged();
+
+    _clearData();
+
+    m_processedCount = 0;
+    m_progressUpdateTimer.start(s_ProgressUpdateIntervalMs);
+    // These are all small objects so capturing by value should be fine
+    const auto thumbnailSize = m_thumbnailSize;
+    const auto counterPtr    = &m_processedCount;
+    const auto cacheMgr      = &m_cacheMgr;
+    QFuture<Data*> future =
+        QtConcurrent::mapped(paths, [thumbnailSize, counterPtr, cacheMgr](const QString& path) {
+            auto data = Data::create(path, thumbnailSize, *cacheMgr);
+            counterPtr->fetch_add(1, std::memory_order_relaxed);
+            return data;
+        });
+    m_watcher.setFuture(future);
+    emit totalCountChanged();
+}
+
+void WallReel::Core::Image::Manager::stop() {
+    if (m_isLoading) {
+        WR_INFO("Stopping image loading...");
+        m_watcher.cancel();
+    } else {
+        WR_WARN("No loading operation to stop.");
+    }
+}
+
+void WallReel::Core::Image::Manager::_clearData() {
+    m_dataModel->clearData();
+}
+
+void WallReel::Core::Image::Manager::_onProgressValueChanged(int value) {
+    Q_UNUSED(value);
+    emit processedCountChanged();
+}
+
+void WallReel::Core::Image::Manager::_onProcessingFinished() {
+    auto results = m_watcher.future().results();
+
+    QList<Data*> filteredResults;
+    filteredResults.reserve(results.size());
+    for (Data* data : results) {
+        if (data && data->isValid()) {
+            filteredResults.append(data);
+            m_dataMap.insert(data->getId(), data);
+        } else {
+            if (data) {
+                WR_WARN(QString("Failed to load image data for path '%1'").arg(data->getFullPath()));
+                delete data;
+            }
+        }
+    }
+
+    m_dataModel->insertData(filteredResults);
+
+    WR_INFO("Finished loading images. Total valid images: " + QString::number(filteredResults.size()));
+
+    m_isLoading = false;
+    m_progressUpdateTimer.stop();
+    emit processedCountChanged();
+    // QTimer::singleShot(s_IsLoadingUpdateIntervalMs, this, [this]() {
+    //     emit isLoadingChanged();
+    // });
+    emit isLoadingChanged();
+}

WallReel/Core/Image/manager.hpp

@@ -0,0 +1,91 @@
+#ifndef WALLREEL_IMAGEMANAGER_HPP
+#define WALLREEL_IMAGEMANAGER_HPP
+
+#include <QAbstractListModel>
+#include <QDir>
+#include <QFutureWatcher>
+#include <QTimer>
+#include <atomic>
+
+#include "Cache/manager.hpp"
+#include "data.hpp"
+#include "model.hpp"
+
+namespace WallReel::Core::Image {
+
+class Manager : public QObject {
+    Q_OBJECT
+
+  public:
+    // Constructor / Destructor
+
+    Manager(
+        Cache::Manager& cacheMgr,
+        const QSize& thumbnailSize,
+        QObject* parent = nullptr);
+
+    ~Manager();
+
+    Image::ProxyModel* model() const { return m_proxyModel; }
+
+    bool isLoading() const { return m_isLoading; }
+
+    int processedCount() const { return m_processedCount.load(std::memory_order_relaxed); }
+
+    int totalCount() const { return m_watcher.progressMaximum(); }
+
+    void setSortType(Config::SortType type) { m_proxyModel->setSortType(type); }
+
+    void setSortDescending(bool descending) { m_proxyModel->setSortDescending(descending); }
+
+    void setSearchText(const QString& text) { m_proxyModel->setSearchText(text); }
+
+    Config::SortType sortType() const { return m_proxyModel->getSortType(); }
+
+    bool sortDescending() const { return m_proxyModel->isSortDescending(); }
+
+    QString searchText() const { return m_proxyModel->getSearchText(); }
+
+    void loadAndProcess(const QStringList& paths);
+
+    void stop();
+
+    Image::Data* imageAt(const QString& id) {
+        if (m_dataMap.contains(id)) {
+            return m_dataMap[id];
+        }
+        return nullptr;
+    }
+
+  private:
+    void _clearData();
+
+  signals:
+    // Properties
+    void isLoadingChanged();
+    void processedCountChanged();
+    void totalCountChanged();
+
+  private slots:
+    void _onProgressValueChanged(int value);
+    void _onProcessingFinished();
+
+  private:
+    Model* m_dataModel;
+    ProxyModel* m_proxyModel;
+    QHash<QString, Data*> m_dataMap;
+
+    Cache::Manager& m_cacheMgr;
+    QSize m_thumbnailSize;
+
+    QFutureWatcher<Data*> m_watcher;
+    bool m_isLoading = false;
+
+    std::atomic<int> m_processedCount{0};
+    QTimer m_progressUpdateTimer;
+    static constexpr int s_ProgressUpdateIntervalMs = 30;
+};
+
+}  // namespace WallReel::Core::Image
+
+#endif  // WALLREEL_IMAGEMANAGER_HPP

WallReel/Core/Image/model.cpp

@@ -1,72 +1,32 @@
 #include "model.hpp"
 
-#include <QFuture>
-#include <QtConcurrent>
-
-#include "data.hpp"
 #include "logger.hpp"
 
 WALLREEL_DECLARE_SENDER("ImageModel")
 
-WallReel::Core::Image::Model::Model(
-    const Config::SortConfigItems& sortConfig,
-    Cache::Manager& cacheMgr,
-    const QSize& thumbnailSize,
-    QObject* parent)
-    : QAbstractListModel(parent),
-      m_sortConfig(sortConfig),
-      m_cacheMgr(cacheMgr),
-      m_thumbnailSize(thumbnailSize),
-      m_currentSortType(sortConfig.type),
-      m_currentSortReverse(sortConfig.reverse) {
-    connect(
-        &m_watcher,
-        &QFutureWatcher<Data*>::finished,
-        this,
-        &Model::_onProcessingFinished);
-    connect(
-        &m_progressUpdateTimer,
-        &QTimer::timeout,
-        this,
-        [this]() {
-            emit progressChanged();
-        });
+namespace WallReel::Core::Image {
 
-    // Pipeline: sort -> filter -> update properties
-    connect(this, &Model::currentSortTypeChanged, this, &Model::_onSortMethodChanged);
-    connect(this, &Model::currentSortReverseChanged, this, &Model::_onSortMethodChanged);
-    connect(this, &Model::searchTextChanged, this, &Model::_onSearchTextChanged);
-    connect(this, &Model::focusedImageChanged, this, &Model::_updateFocusedProperties);
+Model::Model(QObject* parent) : QAbstractListModel(parent) {}
 
-    m_sortIndices.resize(4);  // None, Name, Date, Size
-}
-
-WallReel::Core::Image::Model::~Model() {
-    m_watcher.cancel();
-    m_watcher.waitForFinished();
+Model::~Model() {
     qDeleteAll(m_data);
+    m_data.clear();
 }
 
-int WallReel::Core::Image::Model::rowCount(const QModelIndex& parent) const {
+int Model::rowCount(const QModelIndex& parent) const {
     if (parent.isValid()) {
         return 0;
     }
-    return m_filteredIndices.count();
+    return m_data.count();
 }
 
-QVariant WallReel::Core::Image::Model::data(const QModelIndex& index, int role) const {
-    if (!index.isValid() || index.row() >= m_filteredIndices.count()) {
+QVariant Model::data(const QModelIndex& index, int role) const {
+    if (!index.isValid() || index.row() >= m_data.count() || index.row() < 0) {
         WR_DEBUG("Invalid index requested: " + QString::number(index.row()));
         return QVariant();
     }
 
-    int actualIndex = _convertProxyIndex(index.row());
-    if (actualIndex < 0 || actualIndex >= m_data.count()) {
-        WR_DEBUG("Actual index out of bounds: " + QString::number(actualIndex));
-        return QVariant();
-    }
-    // WR_DEBUG("Data requested for index: " + QString::number(index.row()) + ", actual index: " + QString::number(actualIndex) + ", role: " + QString::number(role));
-    const auto& item = m_data[actualIndex];
+    const auto& item = m_data[index.row()];
     switch (role) {
         case IdRole:
             return item->getId();
@@ -76,89 +36,24 @@ QVariant WallReel::Core::Image::Model::data(const QModelIndex& index, int role)
             return item->getFullPath();
         case NameRole:
             return item->getFileName();
+        case SizeRole:
+            return item->getSize();
+        case DateRole:
+            return item->getLastModified();
+        case DomColorRole:
+            return item->getDominantColor();
         default:
             return QVariant();
     }
 }
 
-QString WallReel::Core::Image::Model::currentSortType() const {
-    switch (m_currentSortType) {
-        case Config::SortType::None:
-            return "None";
-        case Config::SortType::Name:
-            return "Name";
-        case Config::SortType::Date:
-            return "Date";
-        case Config::SortType::Size:
-            return "Size";
-        default:
-            return "Unknown";
-    }
-}
-
-void WallReel::Core::Image::Model::setCurrentSortType(const QString& type) {
-    Config::SortType newSortType = Config::SortType::None;
-    if (type == "None") {
-        newSortType = Config::SortType::None;
-    } else if (type == "Name") {
-        newSortType = Config::SortType::Name;
-    } else if (type == "Date") {
-        newSortType = Config::SortType::Date;
-    } else if (type == "Size") {
-        newSortType = Config::SortType::Size;
-    }
-
-    if (m_currentSortType != newSortType) {
-        m_currentSortType = newSortType;
-        emit currentSortTypeChanged();
-    }
-}
-
-void WallReel::Core::Image::Model::setCurrentSortReverse(bool reverse) {
-    if (m_currentSortReverse != reverse) {
-        m_currentSortReverse = reverse;
-        emit currentSortReverseChanged();
-    }
-}
-
-void WallReel::Core::Image::Model::setSearchText(const QString& text) {
-    // WR_DEBUG("Search text changed: " + text);
-    if (m_searchText != text) {
-        m_searchText = text;
-        _applySearchFilter();
-        emit searchTextChanged();
-    }
-}
-
-WallReel::Core::Image::Data* WallReel::Core::Image::Model::imageAt(int index) {
-    if (index < 0 || index >= m_filteredIndices.count()) {
-        WR_DEBUG("Invalid index requested: " + QString::number(index));
-        return nullptr;
-    }
-    int actualIndex = _convertProxyIndex(index);
-    if (actualIndex < 0 || actualIndex >= m_data.count()) {
-        WR_DEBUG("Actual index out of bounds: " + QString::number(actualIndex));
-        return nullptr;
-    }
-    return m_data[actualIndex];
-}
-
-WallReel::Core::Image::Data* WallReel::Core::Image::Model::focusedImage() {
-    return imageAt(m_focusedIndex);
-}
-
-QVariant WallReel::Core::Image::Model::dataAt(int index, const QString& roleName) const {
-    if (index < 0 || index >= m_filteredIndices.count()) {
+QVariant Model::dataAt(int index, const QString& roleName) const {
+    if (index < 0 || index >= m_data.count()) {
         WR_DEBUG("Invalid index requested: " + QString::number(index));
         return QVariant();
     }
 
-    int actualIndex = _convertProxyIndex(index);
-    if (actualIndex < 0 || actualIndex >= m_data.count()) {
-        WR_DEBUG("Actual index out of bounds: " + QString::number(actualIndex));
-        return QVariant();
-    }
-    const auto& item = m_data[actualIndex];
+    const auto& item = m_data[index];
     if (roleName == "imgId") {
         return item->getId();
     } else if (roleName == "imgUrl") {
@@ -167,203 +62,34 @@ QVariant WallReel::Core::Image::Model::dataAt(int index, const QString& roleName
         return item->getFullPath();
     } else if (roleName == "imgName") {
         return item->getFileName();
+    } else if (roleName == "imgSize") {
+        return item->getSize();
+    } else if (roleName == "imgDate") {
+        return item->getLastModified();
+    } else if (roleName == "imgDomColor") {
+        return item->getDominantColor();
     } else {
         return QVariant();
     }
 }
 
-void WallReel::Core::Image::Model::loadAndProcess(const QStringList& paths) {
-    if (m_isLoading) {
-        WR_WARN("Already loading images. Ignoring new load request.");
+void Model::insertData(const QList<Data*>& newData) {
+    if (newData.isEmpty()) {
         return;
     }
-    m_isLoading = true;
-    emit isLoadingChanged();
-
-    _clearData();
-
-    m_processedCount = 0;
-    m_progressUpdateTimer.start(s_ProgressUpdateIntervalMs);
-    // These are all small objects so capturing by value should be fine
-    const auto thumbnailSize = m_thumbnailSize;
-    const auto counterPtr    = &m_processedCount;
-    const auto cacheMgr      = &m_cacheMgr;
-    QFuture<Data*> future =
-        QtConcurrent::mapped(paths, [thumbnailSize, counterPtr, cacheMgr](const QString& path) {
-            auto data = Data::create(path, thumbnailSize, *cacheMgr);
-            counterPtr->fetch_add(1, std::memory_order_relaxed);
-            return data;
-        });
-    m_watcher.setFuture(future);
-    emit totalCountChanged();
+    beginInsertRows(QModelIndex(), m_data.count(), m_data.count() + newData.count() - 1);
+    m_data.append(newData);
+    endInsertRows();
 }
 
-void WallReel::Core::Image::Model::focusOnIndex(int index) {
-    if (index < 0 || index >= m_filteredIndices.count()) {
-        WR_DEBUG("Invalid index to focus on: " + QString::number(index));
+void Model::clearData() {
+    if (m_data.isEmpty()) {
         return;
     }
-    int actualIndex = _convertProxyIndex(index);
-    if (actualIndex < 0 || actualIndex >= m_data.count()) {
-        WR_DEBUG("Actual index out of bounds for focus: " + QString::number(actualIndex));
-        return;
-    }
-    if (m_focusedIndex != index) {
-        m_focusedIndex = index;
-        emit focusedIndexChanged();
-        emit focusedImageChanged();
-        _updateFocusedProperties();
-    }
-}
-
-void WallReel::Core::Image::Model::stop() {
-    if (m_isLoading) {
-        WR_INFO("Stopping image loading...");
-        m_watcher.cancel();
-    } else {
-        WR_WARN("No loading operation to stop.");
-    }
-}
-
-int WallReel::Core::Image::Model::_convertProxyIndex(int proxyIndex) const {
-    if (proxyIndex < 0 || proxyIndex >= m_filteredIndices.size()) {
-        WR_DEBUG("Invalid proxy index requested: " + QString::number(proxyIndex));
-        return -1;
-    }
-    return m_filteredIndices[proxyIndex];
-}
-
-void WallReel::Core::Image::Model::_clearData() {
     beginResetModel();
     qDeleteAll(m_data);
     m_data.clear();
-    for (auto& i : m_sortIndices) {
-        i.clear();
-    }
-    m_filteredIndices.clear();
     endResetModel();
 }
 
-void WallReel::Core::Image::Model::_updateSortIndices(Config::SortType type) {
-    QList<int>& indices = m_sortIndices[static_cast<int>(type)];
-    indices.resize(m_data.count());
-    std::iota(indices.begin(), indices.end(), 0);
-    if (type == Config::SortType::None) {
-        return;
-    }
-
-    const auto& compareFunc = [this, type](int idx1, int idx2) {
-        const Data* data1 = m_data[idx1];
-        const Data* data2 = m_data[idx2];
-        if (!data1 || !data2) {
-            return false;
-        }
-        switch (type) {
-            case Config::SortType::Name:
-                return QString::compare(data1->getFileName(), data2->getFileName(), Qt::CaseInsensitive) < 0;
-            case Config::SortType::Date:
-                return data1->getLastModified() < data2->getLastModified();
-            case Config::SortType::Size:
-                return data1->getSize() < data2->getSize();
-            default:
-                return false;
-        }
-    };
-
-    std::sort(indices.begin(), indices.end(), compareFunc);
-}
-
-void WallReel::Core::Image::Model::_updateFocusedProperties() {
-    if (m_focusedIndex < 0 || m_focusedIndex >= m_filteredIndices.size()) {
-        m_focusedName = "";
-    } else {
-        int actualIndex = _convertProxyIndex(m_focusedIndex);
-        if (actualIndex < 0 || actualIndex >= m_data.count()) {
-            m_focusedName = "";
-        } else {
-            const auto& item = m_data[actualIndex];
-            m_focusedName    = item->getFileName();
-        }
-    }
-    emit focusedNameChanged();
-}
-
-void WallReel::Core::Image::Model::_applySearchFilter(bool informView) {
-    const auto& sortedIndices = m_sortIndices[static_cast<int>(m_currentSortType)];
-    int srcPos = 0, resPos = 0;
-    for (; srcPos < sortedIndices.size(); ++srcPos) {
-        int actualIndex  = m_currentSortReverse ? sortedIndices[sortedIndices.size() - 1 - srcPos] : sortedIndices[srcPos];
-        const auto& item = m_data[actualIndex];
-        if (item->getFileName().contains(m_searchText, Qt::CaseInsensitive)) {
-            if (resPos >= m_filteredIndices.size() || m_filteredIndices[resPos] != actualIndex) {
-                break;
-            }
-            resPos++;
-        }
-    }
-    if (resPos == m_filteredIndices.size() && srcPos == sortedIndices.size()) {
-        return;  // No change in filtered results
-    }
-    if (informView) {
-        emit layoutAboutToBeChanged();
-    }
-    m_filteredIndices.resize(resPos);
-    for (int i = srcPos; i < sortedIndices.size(); ++i) {
-        int actualIndex  = m_currentSortReverse ? sortedIndices[sortedIndices.size() - 1 - i] : sortedIndices[i];
-        const auto& item = m_data[actualIndex];
-        if (item->getFileName().contains(m_searchText, Qt::CaseInsensitive)) {
-            m_filteredIndices.append(actualIndex);
-        }
-    }
-    if (informView) {
-        emit layoutChanged();
-    }
-}
-
-void WallReel::Core::Image::Model::_onProgressValueChanged(int value) {
-    Q_UNUSED(value);
-    emit progressChanged();
-}
-
-void WallReel::Core::Image::Model::_onProcessingFinished() {
-    auto results = m_watcher.future().results();
-
-    beginResetModel();
-
-    for (auto& data : results) {
-        if (data && data->isValid()) {
-            m_data.append(data);
-        } else {
-            WR_WARN("Failed to load image: " + (data ? data->getFullPath() : "null"));
-            delete data;
-            data = nullptr;
-        }
-    }
-
-    for (int i = 0; i < m_sortIndices.size(); ++i) {
-        _updateSortIndices(static_cast<Config::SortType>(i));
-    }
-
-    _applySearchFilter(false);
-
-    endResetModel();
-
-    WR_INFO("Finished loading images. Total valid images: " + QString::number(m_data.count()));
-
-    m_isLoading = false;
-    m_progressUpdateTimer.stop();
-    emit progressChanged();
-    // QTimer::singleShot(s_IsLoadingUpdateIntervalMs, this, [this]() {
-    //     emit isLoadingChanged();
-    // });
-    emit isLoadingChanged();
-}
-
-void WallReel::Core::Image::Model::_onSortMethodChanged() {
-    _applySearchFilter();
-    emit focusedImageChanged();
-}
-
-void WallReel::Core::Image::Model::_onSearchTextChanged() {
-    emit focusedImageChanged();
-}
+}  // namespace WallReel::Core::Image

WallReel/Core/Image/model.hpp

@@ -2,75 +2,25 @@
 #define WALLREEL_IMAGEMODEL_HPP
 
 #include <QAbstractListModel>
-#include <QDir>
-#include <QFutureWatcher>
-#include <QTimer>
-#include <atomic>
+#include <QSortFilterProxyModel>
 
-#include "Cache/manager.hpp"
 #include "Config/data.hpp"
 #include "data.hpp"
 
-// Development note
-/*
-What "Proxy index" is:
-
-There are currently three layers of indices in the Model:
-1. Actual index: The index of the image in the original data list (m_data), the order is not
-                 guaranteed and can be considered random.
-2. Sorted index: The index of the image after sorting, which is stored in m_sortIndices based on
-                 different sort types. m_sortIndices are precomputed and does not change unless
-                 m_data changes. In practice, the choise of which mapping from m_sortIndices to use
-                 is determined by m_currentSortType.
-3. Filtered index: The final mapping from the index exposed to the QML view to the actual data index,
-                   which is stored in m_filteredIndices. m_filteredIndices is updated each time when
-                   the sort type / sort order / search text changes, and only informs the layout to
-                   update when its content actually changes.
-
-Therefore, when acquiring data, the "proxied" index must first be converted to the "actual" index
-by looking up m_filteredIndices, and then the actual data can be accessed from m_data.
-
-*/
-
 namespace WallReel::Core::Image {
 
-/**
- * @brief An unrefactored (view)model class that manages and provides the image list and properties of the focused image.
- *
- */
 class Model : public QAbstractListModel {
     Q_OBJECT
 
-    // Controls which of the main screen and the loading screen should be shown
-    // and triggers callbacks when loading finished
-    Q_PROPERTY(bool isLoading READ isLoading NOTIFY isLoadingChanged)
-    // Indicates the progress of loading, used to update the progress bar in the loading screen
-    // Not neccessarily updated on every image loaded, but should be updated frequently enough to make the progress bar smooth
-    Q_PROPERTY(int processedCount READ processedCount NOTIFY progressChanged)
-    // Total count of images to be loaded, used to calculate the progress percentage
-    Q_PROPERTY(int totalCount READ totalCount NOTIFY totalCountChanged)
-    // Current index
-    Q_PROPERTY(int currentIndex READ focusedIndex WRITE focusOnIndex NOTIFY focusedIndexChanged)
-    // Sorting related properties
-    // How this works:
-    // 1. User interact with QML control components
-    // 2. QML calls the setter of the corresponding property in the Model
-    // 3. Model changes its internal state and update the sort indices accordingly
-    // 4. Model emits signal and possibly update state on QML side (for stateless controls)
-    // 5. ... Continue on further updates (search filter / focused image properties / etc)
-    Q_PROPERTY(QString currentSortType READ currentSortType WRITE setCurrentSortType NOTIFY currentSortTypeChanged)
-    Q_PROPERTY(bool currentSortReverse READ currentSortReverse WRITE setCurrentSortReverse NOTIFY currentSortReverseChanged)
-    // Focused image related properties, updated when focused image changed
-    Q_PROPERTY(QString focusedName READ focusedName NOTIFY focusedNameChanged)
-
   public:
-    // Types
-
     enum Roles {
         IdRole = Qt::UserRole + 1,
         UrlRole,
         PathRole,
-        NameRole
+        NameRole,
+        SizeRole,
+        DateRole,
+        DomColorRole,
     };
 
     QHash<int, QByteArray> roleNames() const override {
@@ -79,118 +29,57 @@ class Model : public QAbstractListModel {
             {UrlRole, "imgUrl"},  // file:///...
             {PathRole, "imgPath"},
             {NameRole, "imgName"},
+            {SizeRole, "imgSize"},
+            {DateRole, "imgDate"},
+            {DomColorRole, "imgDomColor"},
         };
     }
 
-    // Constructor / Destructor
-
-    Model(
-        const Config::SortConfigItems& sortConfig,
-        Cache::Manager& cacheMgr,
-        const QSize& thumbnailSize,
-        QObject* parent = nullptr);
+    explicit Model(QObject* parent = nullptr);
 
     ~Model();
 
-    // QAbstractListModel
-
     int rowCount(const QModelIndex& parent = QModelIndex()) const override;
 
     QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
 
-    // Properties
+    QVariant dataAt(int index, const QString& roleName) const;
 
-    bool isLoading() const { return m_isLoading; }
+    void clearData();
 
-    int processedCount() const { return m_processedCount.load(std::memory_order_relaxed); }
-
-    int totalCount() const { return m_watcher.progressMaximum(); }
-
-    int focusedIndex() const { return m_focusedIndex; }
-
-    QString currentSortType() const;
-
-    void setCurrentSortType(const QString& type);
-
-    bool currentSortReverse() const { return m_currentSortReverse; }
-
-    void setCurrentSortReverse(bool reverse);
-
-    QString focusedName() const { return m_focusedName; }
-
-    // Methods
-
-    Q_INVOKABLE void setSearchText(const QString& text);
-
-    Data* imageAt(int index);
-
-    Data* focusedImage();
-
-    Q_INVOKABLE QVariant dataAt(int index, const QString& roleName) const;
-
-    void loadAndProcess(const QStringList& paths);
-
-    void focusOnIndex(int index);
-
-    Q_INVOKABLE void stop();
+    void insertData(const QList<Data*>& newData);
 
   private:
-    int _convertProxyIndex(int proxyIndex) const;
-    void _clearData();
-    // Update the corresponding mapping in m_sortIndices based on the current m_data and the given sort type
-    void _updateSortIndices(Config::SortType type);
-    // Reobtain the properties of the focused image and emit corresponding signals
-    void _updateFocusedProperties();
-    // Update m_filteredIndices, only calls layoutAboutToBeChanged and layoutChanged when the filtered result
-    // actually changes and informView is true
-    void _applySearchFilter(bool informView = true);
-
-  signals:
-    // Properties
-    void isLoadingChanged();
-    void progressChanged();
-    void totalCountChanged();
-    void focusedIndexChanged();
-    void currentSortTypeChanged();     // -> _onSortMethodChanged
-    void currentSortReverseChanged();  // -> _onSortMethodChanged
-    void focusedNameChanged();
-    // emitted after search text changed and the filter is applied
-    void searchTextChanged();  // -> _onSearchTextChanged
-    // emiited when the focued image (is believed to be) changed
-    void focusedImageChanged();
-
-  private slots:
-    void _onProgressValueChanged(int value);
-    void _onProcessingFinished();
-    void _onSortMethodChanged();
-    void _onSearchTextChanged();
-
-  private:
-    const Config::SortConfigItems& m_sortConfig;
-    Cache::Manager& m_cacheMgr;
-    QSize m_thumbnailSize;
-
     QList<Data*> m_data;
+};
 
-    QList<QList<int>> m_sortIndices;
-    Config::SortType m_currentSortType;
-    bool m_currentSortReverse;
+class ProxyModel : public QSortFilterProxyModel {
+    Q_OBJECT
 
-    QString m_focusedName{};
+  public:
+    explicit ProxyModel(QObject* parent = nullptr);
 
-    QList<int> m_filteredIndices;
-    QString m_searchText{};
-    // QTimer m_searchDebounceTimer;
-    // static constexpr int s_SearchDebounceIntervalMs = 300;
+    void setSearchText(const QString& text);
 
-    QFutureWatcher<Data*> m_watcher;
-    bool m_isLoading = false;
+    QString getSearchText() const { return m_searchText; }
 
-    int m_focusedIndex = -1;
+    void setSortType(Config::SortType type);
 
-    std::atomic<int> m_processedCount{0};
-    QTimer m_progressUpdateTimer;
-    static constexpr int s_ProgressUpdateIntervalMs = 30;
+    Config::SortType getSortType() const { return m_sortType; }
+
+    void setSortDescending(bool descending);
+
+    bool isSortDescending() const { return m_sortDescending; }
+
+  protected:
+    bool filterAcceptsRow(int sourceRow, const QModelIndex& sourceParent) const override;
+
+    bool lessThan(const QModelIndex& source_left, const QModelIndex& source_right) const override;
+
+  private:
+    QString m_searchText;
+    Config::SortType m_sortType;
+    bool m_sortDescending;
 };
 
 }  // namespace WallReel::Core::Image

WallReel/Core/Image/proxymodel.cpp

@@ -0,0 +1,67 @@
+#include "model.hpp"
+
+namespace WallReel::Core::Image {
+
+ProxyModel::ProxyModel(QObject* parent)
+    : QSortFilterProxyModel(parent) {
+    setFilterCaseSensitivity(Qt::CaseInsensitive);
+    setDynamicSortFilter(true);
+}
+
+void ProxyModel::setSearchText(const QString& text) {
+    if (m_searchText != text) {
+        beginFilterChange();
+        m_searchText = text;
+        setFilterFixedString(text);
+        endFilterChange();
+    }
+}
+
+void ProxyModel::setSortType(Config::SortType type) {
+    if (m_sortType != type) {
+        m_sortType = type;
+        invalidate();
+        sort(0, m_sortDescending ? Qt::DescendingOrder : Qt::AscendingOrder);
+    }
+}
+
+void ProxyModel::setSortDescending(bool descending) {
+    if (m_sortDescending != descending) {
+        m_sortDescending = descending;
+        sort(0, m_sortDescending ? Qt::DescendingOrder : Qt::AscendingOrder);
+    }
+}
+
+bool ProxyModel::filterAcceptsRow(int source_row, const QModelIndex& source_parent) const {
+    QModelIndex index = sourceModel()->index(source_row, 0, source_parent);
+
+    QString imageName = sourceModel()->data(index, Model::NameRole).toString();
+
+    if (m_searchText.isEmpty()) return true;
+    return imageName.contains(m_searchText, Qt::CaseInsensitive);
+}
+
+bool ProxyModel::lessThan(const QModelIndex& source_left, const QModelIndex& source_right) const {
+    switch (m_sortType) {
+        case Config::SortType::Name: {
+            QString leftName  = sourceModel()->data(source_left, Model::NameRole).toString();
+            QString rightName = sourceModel()->data(source_right, Model::NameRole).toString();
+            return leftName < rightName;
+        }
+        case Config::SortType::Date: {
+            QDateTime leftDate  = sourceModel()->data(source_left, Model::DateRole).toDateTime();
+            QDateTime rightDate = sourceModel()->data(source_right, Model::DateRole).toDateTime();
+            return leftDate < rightDate;
+        }
+        case Config::SortType::Size: {
+            qint64 leftSize  = sourceModel()->data(source_left, Model::SizeRole).toLongLong();
+            qint64 rightSize = sourceModel()->data(source_right, Model::SizeRole).toLongLong();
+            return leftSize < rightSize;
+        }
+        default:
+            qDebug() << "Unknown sort type:" << static_cast<int>(m_sortType);
+            return false;
+    }
+}
+
+}  // namespace WallReel::Core::Image

WallReel/Core/Palette/manager.cpp

@@ -1,5 +1,7 @@
 #include "manager.hpp"
 
+#include <qcontainerfwd.h>
+
 #include "Palette/matchcolor.hpp"
 #include "Utils/misc.hpp"
 #include "logger.hpp"
@@ -9,10 +11,8 @@ WALLREEL_DECLARE_SENDER("PaletteManager")
 
 WallReel::Core::Palette::Manager::Manager(
     const Config::ThemeConfigItems& config,
-    Image::Model& imageModel,
-    QObject* parent) : QObject(parent), m_imageModel(imageModel) {
-    connect(&m_imageModel, &Image::Model::focusedImageChanged, this, &Manager::updateColor);
-
+    Image::Manager& imageManager,
+    QObject* parent) : QObject(parent), m_imageManager(imageManager) {
     // The new ones overrides the old ones, use a hashtable to track
     // the latest index of each palette name, then only insert the
     // ones whose index matches the latest index in the hashtable
@@ -64,7 +64,7 @@ WallReel::Core::Palette::Manager::Manager(
     }
 }
 
-void WallReel::Core::Palette::Manager::updateColor() {
+void WallReel::Core::Palette::Manager::updateColor(const QString& imageId) {
     bool hasResult = false;
     Utils::Defer defer([&]() {
         if (!hasResult) {
@@ -74,7 +74,7 @@ void WallReel::Core::Palette::Manager::updateColor() {
         emit colorChanged();
         emit colorNameChanged();
     });
-    auto imageData = m_imageModel.focusedImage();
+    auto imageData = m_imageManager.imageAt(imageId);
     if (!imageData || !imageData->isValid()) {
         WR_WARN("No valid focused image data. Cannot update palette color.");
         return;

WallReel/Core/Palette/manager.hpp

@@ -4,22 +4,17 @@
 #include <qcolor.h>
 
 #include "Config/data.hpp"
-#include "Image/model.hpp"
+#include "Image/manager.hpp"
 #include "data.hpp"
 
 namespace WallReel::Core::Palette {
 
 class Manager : public QObject {
     Q_OBJECT
-    Q_PROPERTY(QList<PaletteItem> availablePalettes READ availablePalettes CONSTANT)
-    Q_PROPERTY(QVariant selectedPalette READ selectedPalette WRITE setSelectedPalette NOTIFY selectedPaletteChanged)
-    Q_PROPERTY(QVariant selectedColor READ selectedColor WRITE setSelectedColor NOTIFY selectedColorChanged)
-    Q_PROPERTY(QColor color READ color NOTIFY colorChanged)
-    Q_PROPERTY(QString colorName READ colorName NOTIFY colorNameChanged)
 
   public:
     Manager(const Config::ThemeConfigItems& config,
-            Image::Model& imageModel,
+            Image::Manager& imageManager,
             QObject* parent = nullptr);
 
     // Properties
@@ -44,7 +39,7 @@ class Manager : public QObject {
         return QVariant();
     }
 
-    Q_INVOKABLE void setSelectedPalette(const QVariant& paletteVar) {
+    void setSelectedPalette(const QVariant& paletteVar) {
         if (paletteVar.isNull() || !paletteVar.isValid()) {
             m_selectedPalette = std::nullopt;
         } else {
@@ -53,17 +48,15 @@ class Manager : public QObject {
         m_selectedColor = std::nullopt;
         emit selectedPaletteChanged();
         emit selectedColorChanged();
-        updateColor();
     }
 
-    Q_INVOKABLE void setSelectedColor(const QVariant& colorVar) {
+    void setSelectedColor(const QVariant& colorVar) {
         if (colorVar.isNull() || !colorVar.isValid()) {
             m_selectedColor = std::nullopt;
         } else {
             m_selectedColor = colorVar.value<ColorItem>();
         }
         emit selectedColorChanged();
-        updateColor();
     }
 
     // Getters
@@ -99,7 +92,7 @@ class Manager : public QObject {
     }
 
   public slots:
-    void updateColor();  // <- Image::Model::focusedImageChanged
+    void updateColor(const QString& imageId);
 
   signals:
     void selectedPaletteChanged();
@@ -108,7 +101,7 @@ class Manager : public QObject {
     void colorNameChanged();
 
   private:
-    Image::Model& m_imageModel;
+    Image::Manager& m_imageManager;
 
     QList<PaletteItem> m_palettes;
     // Null means auto

WallReel/Core/Provider/bootstrap.hpp

@@ -0,0 +1,66 @@
+#ifndef WALLREEL_PROVIDER_BOOTSTRAP_HPP
+#define WALLREEL_PROVIDER_BOOTSTRAP_HPP
+
+#include <QQmlEngine>
+
+#include "Cache/manager.hpp"
+#include "Config/manager.hpp"
+#include "Image/manager.hpp"
+#include "Palette/manager.hpp"
+#include "Service/manager.hpp"
+#include "Utils/misc.hpp"
+#include "appoptions.hpp"
+
+namespace WallReel::Core::Provider {
+
+class Bootstrap {
+    friend class Carousel;
+
+  public:
+    Bootstrap(const AppOptions& options) {
+        cacheMgr = new Cache::Manager(Utils::getCacheDir());
+
+        if (options.clearCache) {
+            cacheMgr->clearCache();
+            return;
+        }
+        configMgr = new Config::Manager(
+            Utils::getConfigDir(),
+            options.appendDirs,
+            options.configPath);
+
+        imageMgr = new Image::Manager(
+            *cacheMgr,
+            configMgr->getFocusImageSize());
+
+        paletteMgr = new Palette::Manager(
+            configMgr->getThemeConfig(),
+            *imageMgr);
+        qRegisterMetaType<Palette::PaletteItem>("PaletteItem");
+        qRegisterMetaType<Palette::ColorItem>("ColorItem");
+
+        ServiceMgr = new Service::Manager(
+            configMgr->getActionConfig(),
+            *imageMgr,
+            *paletteMgr);
+    }
+
+    ~Bootstrap() {
+        delete ServiceMgr;
+        delete paletteMgr;
+        delete imageMgr;
+        delete configMgr;
+        delete cacheMgr;
+    }
+
+  private:
+    Cache::Manager* cacheMgr;
+    Config::Manager* configMgr;
+    Image::Manager* imageMgr;
+    Palette::Manager* paletteMgr;
+    Service::Manager* ServiceMgr;
+};
+
+}  // namespace WallReel::Core::Provider
+
+#endif  // WALLREEL_PROVIDER_BOOTSTRAP_HPP

WallReel/Core/Provider/carousel.hpp

@@ -0,0 +1,274 @@
+#ifndef WALLREEL_PROVIDER_CAROUSEL_HPP
+#define WALLREEL_PROVIDER_CAROUSEL_HPP
+
+#include <qapplication.h>
+
+#include <QApplication>
+
+#include "Config/data.hpp"
+#include "Config/manager.hpp"
+#include "Image/manager.hpp"
+#include "Palette/data.hpp"
+#include "Palette/manager.hpp"
+#include "Service/manager.hpp"
+#include "bootstrap.hpp"
+
+namespace WallReel::Core::Provider {
+
+class Carousel : public QObject {
+    Q_OBJECT
+
+    // Image::Manager
+
+  public:
+    Q_PROPERTY(Image::ProxyModel* imageModel READ imageModel CONSTANT)
+    Q_PROPERTY(bool isLoading READ isLoading NOTIFY isLoadingChanged)
+    Q_PROPERTY(int processedCount READ processedCount NOTIFY processedCountChanged)
+    Q_PROPERTY(int totalCount READ totalCount NOTIFY totalCountChanged)
+    Q_PROPERTY(QString sortType READ sortType NOTIFY sortTypeChanged)
+    Q_PROPERTY(bool sortDescending READ sortDescending NOTIFY sortDescendingChanged)
+    Q_PROPERTY(QString searchText READ searchText NOTIFY searchTextChanged)
+
+    Image::ProxyModel* imageModel() const { return m_imageMgr->model(); }
+
+    bool isLoading() const { return m_imageMgr->isLoading(); }
+
+    int processedCount() const { return m_imageMgr->processedCount(); }
+
+    QString sortType() const { return Config::sortTypeToString(m_imageMgr->sortType()); }
+
+    bool sortDescending() const { return m_imageMgr->sortDescending(); }
+
+    QString searchText() const { return m_imageMgr->searchText(); }
+
+    int totalCount() const { return m_imageMgr->totalCount(); }
+
+    Q_INVOKABLE void stopLoading() { m_imageMgr->stop(); }
+
+    Q_INVOKABLE void setSortType(const QString& sortTypeStr) {
+        auto newSortType = Config::stringToSortType(sortTypeStr);
+        m_imageMgr->setSortType(newSortType);
+        emit sortTypeChanged();
+    }
+
+    Q_INVOKABLE void setSortType(Config::SortType sortType) {
+        m_imageMgr->setSortType(sortType);
+        emit sortTypeChanged();
+    }
+
+    Q_INVOKABLE void setSortDescending(bool descending) {
+        m_imageMgr->setSortDescending(descending);
+        emit sortDescendingChanged();
+    }
+
+    Q_INVOKABLE void setSearchText(const QString& text) {
+        m_imageMgr->setSearchText(text);
+        emit searchTextChanged();
+    }
+
+  signals:
+    void isLoadingChanged();
+    void processedCountChanged();
+    void totalCountChanged();
+    void sortTypeChanged();
+    void sortDescendingChanged();
+    void searchTextChanged();
+
+    // Config::Manager
+
+  public:
+    Q_PROPERTY(int imageWidth READ imageWidth CONSTANT)
+    Q_PROPERTY(int imageHeight READ imageHeight CONSTANT)
+    Q_PROPERTY(double imageFocusScale READ imageFocusScale CONSTANT)
+    Q_PROPERTY(int windowWidth READ windowWidth CONSTANT)
+    Q_PROPERTY(int windowHeight READ windowHeight CONSTANT)
+    Q_PROPERTY(QStringList availableSortTypes READ availableSortTypes CONSTANT)
+
+    int imageWidth() const { return m_configMgr->getStyleConfig().imageWidth; }
+
+    int imageHeight() const { return m_configMgr->getStyleConfig().imageHeight; }
+
+    int windowWidth() const { return m_configMgr->getStyleConfig().windowWidth; }
+
+    int windowHeight() const { return m_configMgr->getStyleConfig().windowHeight; }
+
+    double imageFocusScale() const { return m_configMgr->getStyleConfig().imageFocusScale; }
+
+    QStringList availableSortTypes() const { return Config::s_availableSortTypes; }
+
+    // Palette::Manager
+
+  public:
+    Q_PROPERTY(QList<Palette::PaletteItem> availablePalettes READ availablePalettes CONSTANT)
+    Q_PROPERTY(QVariant selectedPalette READ selectedPalette NOTIFY selectedPaletteChanged)
+    Q_PROPERTY(QVariant selectedColor READ selectedColor NOTIFY selectedColorChanged)
+    Q_PROPERTY(QColor color READ color NOTIFY colorChanged)
+    Q_PROPERTY(QString colorName READ colorName NOTIFY colorNameChanged)
+
+    QList<Palette::PaletteItem> availablePalettes() const { return m_paletteMgr->availablePalettes(); }
+
+    QVariant selectedPalette() const { return m_paletteMgr->selectedPalette(); }
+
+    QVariant selectedColor() const { return m_paletteMgr->selectedColor(); }
+
+    QColor color() const { return m_paletteMgr->color(); }
+
+    QString colorName() const { return m_paletteMgr->colorName(); }
+
+    Q_INVOKABLE void requestSelectPalette(const QVariant& palette) { m_paletteMgr->setSelectedPalette(palette); }
+
+    Q_INVOKABLE void requestSelectColor(const QVariant& color) { m_paletteMgr->setSelectedColor(color); }
+
+  signals:
+    void selectedPaletteChanged();
+    void selectedColorChanged();
+    void colorChanged();
+    void colorNameChanged();
+
+    // Service::Manager
+
+  public:
+    Q_PROPERTY(bool isProcessing READ isProcessing NOTIFY isProcessingChanged)
+
+    bool isProcessing() const { return m_serviceMgr->isProcessing(); }
+
+    Q_INVOKABLE void confirm() {
+        if (!m_currentImageId.isEmpty()) {
+            m_serviceMgr->selectWallpaper(m_currentImageId);
+        }
+    }
+
+    Q_INVOKABLE void cancel() { m_serviceMgr->cancel(); }
+
+    Q_INVOKABLE void restore() { m_serviceMgr->restore(); }
+
+    Q_INVOKABLE bool hasSelected() const { return m_serviceMgr->hasSelected(); }
+
+  signals:
+    void isProcessingChanged();
+    void selectCompleted();
+    void previewCompleted();
+    void restoreCompleted();
+    void cancelCompleted();
+
+    // Other states
+
+  public:
+    Q_PROPERTY(QString currentImageId READ currentImageId NOTIFY currentImageIdChanged)
+    Q_PROPERTY(int currentIndex READ currentIndex NOTIFY currentIndexChanged)
+
+    QString currentImageId() const { return m_currentImageId; }
+
+    int currentIndex() const { return m_currentIndex; }
+
+    Q_INVOKABLE void setCurrentImageId(const QString& imageId) {
+        if (m_currentImageId != imageId) {
+            m_currentImageId = imageId;
+            emit currentImageIdChanged();
+        }
+    }
+
+    Q_INVOKABLE void setCurrentIndex(int index) {
+        if (m_currentIndex != index) {
+            m_currentIndex = index;
+            emit currentIndexChanged();
+        }
+    }
+
+  signals:
+    void currentImageIdChanged();
+    void currentIndexChanged();
+
+  private:
+    QString m_currentImageId;
+    int m_currentIndex = -1;
+
+    // instances
+
+  public:
+    Carousel(QApplication* app,
+             Bootstrap& bootstrap,
+             QObject* parent = nullptr)
+        : QObject(parent),
+          m_configMgr(bootstrap.configMgr),
+          m_imageMgr(bootstrap.imageMgr),
+          m_paletteMgr(bootstrap.paletteMgr),
+          m_serviceMgr(bootstrap.ServiceMgr) {
+        // Simply forward signals
+        connect(m_imageMgr, &Image::Manager::isLoadingChanged, this, &Carousel::isLoadingChanged);
+        connect(m_imageMgr, &Image::Manager::processedCountChanged, this, &Carousel::processedCountChanged);
+        connect(m_imageMgr, &Image::Manager::totalCountChanged, this, &Carousel::totalCountChanged);
+        connect(m_paletteMgr, &Palette::Manager::selectedPaletteChanged, this, &Carousel::selectedPaletteChanged);
+        connect(m_paletteMgr, &Palette::Manager::selectedColorChanged, this, &Carousel::selectedColorChanged);
+        connect(m_paletteMgr, &Palette::Manager::colorChanged, this, &Carousel::colorChanged);
+        connect(m_paletteMgr, &Palette::Manager::colorNameChanged, this, &Carousel::colorNameChanged);
+        connect(m_serviceMgr, &Service::Manager::isProcessingChanged, this, &Carousel::isProcessingChanged);
+        connect(m_serviceMgr, &Service::Manager::selectCompleted, this, &Carousel::selectCompleted);
+        connect(m_serviceMgr, &Service::Manager::previewCompleted, this, &Carousel::previewCompleted);
+        connect(m_serviceMgr, &Service::Manager::restoreCompleted, this, &Carousel::restoreCompleted);
+        connect(m_serviceMgr, &Service::Manager::cancelCompleted, this, &Carousel::cancelCompleted);
+
+        // Preview on imageid change
+        connect(this, &Carousel::currentImageIdChanged, this, [this]() {
+            if (!m_currentImageId.isEmpty()) {
+                m_serviceMgr->previewWallpaper(m_currentImageId);
+            }
+        });
+        // Update color when imageid changes
+        connect(this, &Carousel::currentImageIdChanged, this, [this]() {
+            if (!m_currentImageId.isEmpty()) {
+                m_paletteMgr->updateColor(m_currentImageId);
+            }
+        });
+        // Update color when selected color changes
+        connect(this, &Carousel::selectedColorChanged, this, [this]() {
+            if (!m_currentImageId.isEmpty()) {
+                m_paletteMgr->updateColor(m_currentImageId);
+            }
+        });
+
+        // Quit on selected
+        if (m_configMgr->getActionConfig().quitOnSelected) {
+            QObject::connect(
+                this,
+                &Provider::Carousel::selectCompleted,
+                app,
+                &QApplication::quit,
+                Qt::QueuedConnection);
+        }
+        // Quit on cancel
+        QObject::connect(
+            this,
+            &Provider::Carousel::cancelCompleted,
+            app,
+            &QApplication::quit,
+            Qt::QueuedConnection);
+        // Restore on quit
+        if (m_configMgr->getActionConfig().restoreOnClose) {
+            QObject::connect(
+                app,
+                &QApplication::aboutToQuit,
+                m_serviceMgr,
+                &Service::Manager::restoreOnQuit);
+        }
+
+        // Initial value of sort method
+        setSortType(m_configMgr->getSortConfig().type);
+        setSortDescending(m_configMgr->getSortConfig().descending);
+    }
+
+    void start() {
+        m_configMgr->captureState();
+        m_imageMgr->loadAndProcess(m_configMgr->getWallpapers());
+    }
+
+  private:
+    Config::Manager* m_configMgr;
+    Image::Manager* m_imageMgr;
+    Palette::Manager* m_paletteMgr;
+    Service::Manager* m_serviceMgr;
+};
+
+}  // namespace WallReel::Core::Provider
+
+#endif  // WALLREEL_PROVIDER_CAROUSEL_HPP

WallReel/Core/Service/manager.hpp

@@ -5,7 +5,7 @@
 #include <QTimer>
 
 #include "Config/data.hpp"
-#include "Image/model.hpp"
+#include "Image/manager.hpp"
 #include "Palette/manager.hpp"
 #include "Service/wallpaper.hpp"
 #include "logger.hpp"
@@ -20,16 +20,11 @@ class Manager : public QObject {
   public:
     Manager(
         const Config::ActionConfigItems& actionConfig,
-        Image::Model& imageModel,
+        Image::Manager& imageManager,
         Palette::Manager& paletteManager,
-        QObject* parent = nullptr) : m_actionConfig(actionConfig), m_imageModel(imageModel), m_paletteManager(paletteManager) {
+        QObject* parent = nullptr) : m_actionConfig(actionConfig), m_imageManager(imageManager), m_paletteManager(paletteManager) {
         m_wallpaperService = new WallpaperService(m_actionConfig, m_paletteManager, this);
 
-        // Listen on image change
-        connect(&m_imageModel, &Image::Model::focusedImageChanged, this, &Manager::previewWallpaper);
-        // Listen on palette change
-        connect(&m_paletteManager, &Palette::Manager::colorChanged, this, &Manager::previewWallpaper);
-        connect(&m_paletteManager, &Palette::Manager::colorNameChanged, this, &Manager::previewWallpaper);
         // Forward signals
         // Direct signal 2 signal connection
         connect(m_wallpaperService, &WallpaperService::previewCompleted, this, &Manager::previewCompleted);
@@ -38,26 +33,32 @@ class Manager : public QObject {
         connect(m_wallpaperService, &WallpaperService::restoreCompleted, this, &Manager::_onRestoreCompleted);
     }
 
-    Q_INVOKABLE void selectWallpaper(int index) {
-        Logger::debug("ServiceManager", QString("Select wallpaper at index %1").arg(index));
+    bool isProcessing() const { return m_isProcessing; }
+
+    bool hasSelected() const { return m_hasSelected; }
+
+  public slots:
+
+    void selectWallpaper(const QString& id) {
+        Logger::debug("ServiceManager", QString("Select wallpaper with id %1").arg(id));
         if (m_isProcessing) {
             Logger::debug("ServiceManager", "Already processing an select action, ignoring new request");
             return;
         }
         m_isProcessing = true;
         emit isProcessingChanged();
-        const auto* data = m_imageModel.imageAt(index);
+        const auto* data = m_imageManager.imageAt(id);
         if (data) {
             m_wallpaperService->select(*data);
         } else {
-            Logger::warn("ServiceManager", QString("No image data at index %1. Skipping select action.").arg(index));
+            Logger::warn("ServiceManager", QString("No image data at id %1. Skipping select action.").arg(id));
             m_isProcessing = false;
             emit isProcessingChanged();
             emit selectCompleted();
         }
     }
 
-    Q_INVOKABLE void restore() {
+    void restore() {
         Logger::debug("ServiceManager", "Restore states");
         if (m_isProcessing) {
             Logger::debug("ServiceManager", "Already processing an restore action, ignoring new request");
@@ -68,29 +69,36 @@ class Manager : public QObject {
         m_wallpaperService->restore();
     }
 
-    Q_INVOKABLE void cancel() {
+    void cancel() {
         Logger::debug("ServiceManager", "Cancel action");
         m_wallpaperService->stopAll();
         emit cancelCompleted();
     }
 
-    bool isProcessing() const { return m_isProcessing; }
-
-    bool hasSelected() const { return m_hasSelected; }
-
-  public slots:
-
-    void previewWallpaper() {
+    void previewWallpaper(const QString& id) {
         Logger::debug("ServiceManager", "Preview wallpaper");
-        const auto* data = m_imageModel.focusedImage();
+        const auto* data = m_imageManager.imageAt(id);
         if (data) {
             m_wallpaperService->preview(*data);
         } else {
-            Logger::warn("ServiceManager", "No focused image data. Skipping preview action.");
+            Logger::warn("ServiceManager", "No image data at id " + id + ". Skipping preview action.");
             emit previewCompleted();
         }
     }
 
+    void restoreOnQuit() {
+        if (m_hasSelected) {
+            Logger::debug("ServiceManager", "Quit with selected wallpaper, no need to restore");
+            return;
+        }
+        Logger::debug("ServiceManager", "Restore on quit");
+        m_wallpaperService->stopAll();
+        QEventLoop loop;
+        connect(m_wallpaperService, &WallpaperService::restoreCompleted, &loop, &QEventLoop::quit);
+        m_wallpaperService->restore();
+        loop.exec();
+    }
+
   private slots:
 
     void _onSelectCompleted() {
@@ -121,7 +129,7 @@ class Manager : public QObject {
   private:
     WallpaperService* m_wallpaperService;
     const Config::ActionConfigItems& m_actionConfig;
-    Image::Model& m_imageModel;
+    Image::Manager& m_imageManager;
     Palette::Manager& m_paletteManager;
 
     bool m_isProcessing = false;

WallReel/Core/Service/wallpaper.cpp

@@ -108,9 +108,9 @@ QHash<QString, QString> WallReel::Core::Service::WallpaperService::_generateVari
         {"width", QString::number(imageData.getTargetSize().width())},
         {"height", QString::number(imageData.getTargetSize().height())},
         {"palette", palette},
-        {"color", color},
+        {"colorName", color},
         {"colorHex", hex},
-        {"domColor", m_paletteManager.color().name()},
+        {"domColorHex", imageData.getDominantColor().name()},
     };
 }
 

WallReel/UI/CMakeLists.txt

@@ -6,7 +6,6 @@ qt_add_qml_module(${UILIB_NAME}
     Main.qml
     Pages/LoadingScreen.qml
     Pages/CarouselScreen.qml
-    Providers/CarouselProvider.qml
     Modules/Carousel.qml
     Modules/TitleBar.qml
     Modules/SortControl.qml

WallReel/UI/Main.qml

@@ -4,8 +4,8 @@ import WallReel.Core
 import WallReel.UI.Pages
 
 ApplicationWindow {
-    width: Config.windowWidth
-    height: Config.windowHeight
+    width: CarouselProvider.windowWidth
+    height: CarouselProvider.windowHeight
     // minimumWidth: width
     // maximumWidth: width
     // minimumHeight: height
@@ -14,15 +14,15 @@ ApplicationWindow {
     title: qsTr("WallReel")
 
     LoadingScreen {
-        visible: ImageModel.isLoading
+        visible: CarouselProvider.isLoading
         anchors.fill: parent
-        currentValue: ImageModel.processedCount
-        totalValue: ImageModel.totalCount
+        currentValue: CarouselProvider.processedCount
+        totalValue: CarouselProvider.totalCount
     }
 
     Loader {
         anchors.fill: parent
-        active: !ImageModel.isLoading
+        active: !CarouselProvider.isLoading
 
         sourceComponent: CarouselScreen {
         }

WallReel/UI/Modules/Carousel.qml

@@ -12,11 +12,12 @@ Item {
     property int spacing: 0
     property int animDuration: 200
     property int count: view.count
+    property string currentImageId: view.currentItem ? view.currentItem.imgId : ""
+    property string currentImageName: view.currentItem ? view.currentItem.imgName : ""
 
     ListView {
         id: view
 
-        model: root.model
         anchors.fill: parent
         orientation: ListView.Horizontal
         spacing: root.spacing
@@ -36,6 +37,7 @@ Item {
             view.currentIndex = root.currentIndex;
             view.forceActiveFocus();
         }
+        model: root.model
 
         Connections {
             function onCurrentIndexChanged() {
@@ -51,6 +53,8 @@ Item {
             id: delegateItem
 
             property bool isFocused: ListView.isCurrentItem
+            property string imgName: model.imgName
+            property string imgId: model.imgId
 
             width: isFocused ? root.focusedItemWidth : root.itemWidth
             height: view.height

WallReel/UI/Modules/ColorControl.qml

@@ -38,11 +38,11 @@ Item {
 
             implicitWidth: 200
             displayText: currentIndex < 0 ? "— palette —" : currentText
-            model: root.availablePalettes.map((p) => {
+            model: ["(None)"].concat(root.availablePalettes.map((p) => {
                 return p.name;
-            })
+            }))
             onActivated: (idx) => {
-                root.paletteSelected(idx >= 0 ? root.availablePalettes[idx] : null);
+                root.paletteSelected(idx >= 0 ? root.availablePalettes[idx - 1] : null);
             }
 
             Binding {
@@ -50,7 +50,7 @@ Item {
                 property: "currentIndex"
                 value: root.selectedPalette ? root.availablePalettes.findIndex((p) => {
                     return p.name === root.selectedPalette.name;
-                }) : -1
+                }) + 1 : 0
             }
 
         }

WallReel/UI/Modules/SortControl.qml

@@ -7,10 +7,10 @@ Item {
 
     property var availableSortTypes: []
     property string selectedSortType: ""
-    property bool isReverse: false
+    property bool isDescending: false
 
     signal sortTypeSelected(string sortType)
-    signal isReverseToggled(bool reverse)
+    signal isDescendingToggled(bool descending)
 
     implicitWidth: row.implicitWidth
     implicitHeight: row.implicitHeight
@@ -44,14 +44,14 @@ Item {
         }
 
         ToolButton {
-            icon.name: root.isReverse ? "view-sort-descending" : "view-sort-ascending"
+            icon.name: root.isDescending ? "view-sort-descending" : "view-sort-ascending"
             icon.width: 16
             icon.height: 16
             focusPolicy: Qt.NoFocus
-            onClicked: root.isReverseToggled(!root.isReverse)
+            onClicked: root.isDescendingToggled(!root.isDescending)
             ToolTip.visible: hovered
             ToolTip.delay: 600
-            ToolTip.text: root.isReverse ? "Descending order" : "Ascending order"
+            ToolTip.text: root.isDescending ? "Descending order" : "Ascending order"
         }
 
     }

WallReel/UI/Modules/TopBar.qml

@@ -13,10 +13,10 @@ Item {
     readonly property string searchText: searchBar.typedText
     property alias availableSortTypes: sortCtrl.availableSortTypes
     property alias selectedSortType: sortCtrl.selectedSortType
-    property alias isSortReverse: sortCtrl.isReverse
+    property alias isSortDescending: sortCtrl.isDescending
 
     signal sortTypeSelected(string sortType)
-    signal sortReverseToggled(bool reverse)
+    signal sortDescendingToggled(bool descending)
     signal searchDismissed()
 
     function requestSearchFocus() {
@@ -58,8 +58,8 @@ Item {
             onSortTypeSelected: (t) => {
                 return root.sortTypeSelected(t);
             }
-            onIsReverseToggled: (r) => {
-                return root.sortReverseToggled(r);
+            onIsDescendingToggled: (r) => {
+                return root.sortDescendingToggled(r);
             }
         }
 

WallReel/UI/Pages/CarouselScreen.qml

@@ -1,8 +1,8 @@
 import QtQuick
 import QtQuick.Controls
 import QtQuick.Layouts
+import WallReel.Core
 import WallReel.UI.Modules
-import WallReel.UI.Providers
 
 Item {
     id: root
@@ -20,9 +20,9 @@ Item {
                 carousel.currentIndex++;
 
         } else if (e.key === Qt.Key_Return || e.key === Qt.Key_Enter)
-            provider.confirm();
+            CarouselProvider.confirm();
         else if (e.key === Qt.Key_Escape)
-            provider.cancel();
+            CarouselProvider.cancel();
         else
             e.accepted = false;
     }
@@ -35,21 +35,6 @@ Item {
         target: topBar
     }
 
-    CarouselProvider {
-        id: provider
-    }
-
-    // ViewModel → Carousel sync (assignment, not binding, to avoid breakage)
-    Connections {
-        function onCurrentIndexChanged() {
-            if (carousel.currentIndex !== provider.currentIndex)
-                carousel.currentIndex = provider.currentIndex;
-
-        }
-
-        target: provider
-    }
-
     ColumnLayout {
         anchors.fill: parent
         anchors.margins: 12
@@ -60,29 +45,29 @@ Item {
 
             Layout.fillWidth: true
             totalCount: carousel.count
-            title: provider.focusedName
-            availableSortTypes: provider.availableSortTypes
-            isSortReverse: provider.isSortReverse
+            title: carousel.currentImageName
+            availableSortTypes: CarouselProvider.availableSortTypes
+            isSortDescending: CarouselProvider.sortDescending
             onSortTypeSelected: (t) => {
-                return provider.setSortType(t);
+                return CarouselProvider.setSortType(t);
             }
-            onSortReverseToggled: (r) => {
-                return provider.setSortReverse(r);
+            onSortDescendingToggled: (r) => {
+                return CarouselProvider.setSortDescending(r);
             }
             onSearchTextChanged: () => {
-                return provider.setSearchText(topBar.searchText);
+                return CarouselProvider.setSearchText(searchText);
             }
 
             Binding {
                 target: topBar
                 property: "currentIndex"
-                value: provider.currentIndex
+                value: carousel.currentIndex
             }
 
             Binding {
                 target: topBar
                 property: "selectedSortType"
-                value: provider.selectedSortType
+                value: CarouselProvider.sortType
             }
 
         }
@@ -92,33 +77,22 @@ Item {
 
             Layout.fillWidth: true
             Layout.fillHeight: true
-            model: provider.imageModel
-            itemWidth: provider.imageWidth
-            itemHeight: provider.imageHeight
-            focusedItemWidth: provider.imageWidth * provider.imageFocusScale
-            focusedItemHeight: provider.imageHeight * provider.imageFocusScale
-            onCurrentIndexChanged: {
-                if (provider.currentIndex !== currentIndex)
-                    provider.setCurrentIndex(currentIndex);
-
-            }
-            Component.onCompleted: {
-                // Sync initial index to provider from Carousel
-                if (provider.currentIndex !== currentIndex)
-                    provider.setCurrentIndex(currentIndex);
-
-            }
+            model: CarouselProvider.imageModel
+            itemWidth: CarouselProvider.imageWidth
+            itemHeight: CarouselProvider.imageHeight
+            focusedItemWidth: CarouselProvider.imageWidth * CarouselProvider.imageFocusScale
+            focusedItemHeight: CarouselProvider.imageHeight * CarouselProvider.imageFocusScale
 
             MouseArea {
                 anchors.fill: parent
                 onWheel: (e) => {
                     if (e.angleDelta.y > 0) {
-                        if (provider.currentIndex > 0)
-                            provider.currentIndex--;
+                        if (carousel.currentIndex > 0)
+                            carousel.currentIndex--;
 
                     } else if (e.angleDelta.y < 0) {
-                        if (provider.currentIndex < carousel.count - 1)
-                            provider.currentIndex++;
+                        if (carousel.currentIndex < carousel.count - 1)
+                            carousel.currentIndex++;
 
                     }
                 }
@@ -141,64 +115,76 @@ Item {
             Layout.fillWidth: true
             from: 0
             to: Math.max(0, carousel.count - 1)
-            value: provider.currentIndex
-            onMoved: provider.currentIndex = Math.round(value)
+            value: carousel.currentIndex
+            onMoved: carousel.currentIndex = Math.round(value)
         }
 
         BottomBar {
             id: bottomBar
 
             Layout.fillWidth: true
-            availablePalettes: provider.availablePalettes
-            availableColors: provider.availableColors
+            availablePalettes: CarouselProvider.availablePalettes
+            availableColors: CarouselProvider.selectedPalette ? CarouselProvider.selectedPalette.colors : []
             onPaletteSelected: (p) => {
-                return provider.selectPalette(p);
+                return CarouselProvider.requestSelectPalette(p);
             }
             onColorSelected: (c) => {
-                return provider.selectColor(c);
+                return CarouselProvider.requestSelectColor(c);
             }
-            onRestoreClicked: provider.restore()
-            onConfirmClicked: provider.confirm()
-            onCancelClicked: provider.cancel()
+            onRestoreClicked: CarouselProvider.restore()
+            onConfirmClicked: CarouselProvider.confirm()
+            onCancelClicked: CarouselProvider.cancel()
 
             Binding {
                 target: bottomBar
                 property: "selectedPalette"
-                value: provider.selectedPalette
+                value: CarouselProvider.selectedPalette
             }
 
             Binding {
                 target: bottomBar
                 property: "selectedColor"
-                value: provider.selectedColor
+                value: CarouselProvider.selectedColor
             }
 
             Binding {
                 target: bottomBar
                 property: "colorName"
-                value: provider.colorName
+                value: CarouselProvider.colorName
             }
 
             Binding {
                 target: bottomBar
                 property: "colorHex"
-                value: provider.colorHex
+                value: CarouselProvider.color
             }
 
             Binding {
                 target: bottomBar
                 property: "colorValue"
-                value: provider.colorValue
+                value: CarouselProvider.color
             }
 
             Binding {
                 target: bottomBar
                 property: "actionsEnabled"
-                value: !provider.isProcessing
+                value: !CarouselProvider.isProcessing
             }
 
         }
 
     }
 
+    Connections {
+        function onCurrentImageIdChanged() {
+            CarouselProvider.setCurrentImageId(carousel.currentImageId);
+        }
+
+        function onCurrentIndexChanged() {
+            CarouselProvider.setCurrentIndex(carousel.currentIndex);
+        }
+
+        target: carousel
+    }
+
 }

WallReel/UI/Providers/CarouselProvider.qml

@@ -1,79 +0,0 @@
-import QtQuick
-import WallReel.Core
-
-QtObject {
-    id: root
-
-    //// Image model
-    readonly property var imageModel: ImageModel
-    readonly property bool isLoading: ImageModel.isLoading
-    readonly property int processedCount: ImageModel.processedCount
-    readonly property int totalCount: ImageModel.totalCount
-    // Image display dimensions (from Config)
-    readonly property int imageWidth: Config.imageWidth
-    readonly property int imageHeight: Config.imageHeight
-    readonly property real imageFocusScale: Config.imageFocusScale
-    // Carousel selection state
-    readonly property int currentIndex: ImageModel.currentIndex
-    // Image name
-    readonly property string focusedName: ImageModel.focusedName
-    //// Sort
-    readonly property var availableSortTypes: ["None", "Name", "Date", "Size"]
-    readonly property string selectedSortType: ImageModel.currentSortType
-    readonly property bool isSortReverse: ImageModel.currentSortReverse
-    //// Palette / Color
-    readonly property var availablePalettes: PaletteManager.availablePalettes
-    readonly property var selectedPalette: PaletteManager.selectedPalette // PaletteItem | null
-    readonly property var availableColors: selectedPalette ? selectedPalette.colors : []
-    readonly property var selectedColor: PaletteManager.selectedColor // ColorItem | null  (null means "auto")
-    readonly property string colorName: PaletteManager.colorName
-    readonly property string colorHex: PaletteManager.color
-    readonly property color colorValue: PaletteManager.color
-    //// Actions state
-    readonly property bool isProcessing: ServiceManager.isProcessing
-
-    // Actions
-    function confirm() {
-        ServiceManager.selectWallpaper(currentIndex);
-    }
-
-    function restore() {
-        ServiceManager.restore();
-    }
-
-    function cancel() {
-        ServiceManager.cancel();
-    }
-
-    function setCurrentIndex(index) {
-        ImageModel.currentIndex = index;
-    }
-
-    function focusSearch() {
-        searchBar.requestFocus();
-    }
-
-    function setSortType(type) {
-        ImageModel.currentSortType = type;
-    }
-
-    function setSortReverse(reverse) {
-        ImageModel.currentSortReverse = reverse;
-    }
-
-    function selectPalette(palette) {
-        PaletteManager.selectedPalette = palette;
-    }
-
-    function selectColor(colorItem) {
-        PaletteManager.selectedColor = colorItem;
-    }
-
-    function setSearchText(text) {
-        ImageModel.setSearchText(text);
-        if (currentIndex != 0)
-            currentIndex = 0;
-
-    }
-
-}

WallReel/main.cpp

@@ -9,13 +9,8 @@
 Q_IMPORT_QML_PLUGIN(WallReel_CorePlugin)
 Q_IMPORT_QML_PLUGIN(WallReel_UIPlugin)
 
-#include "Cache/manager.hpp"
-#include "Core/Config/manager.hpp"
-#include "Core/Image/model.hpp"
-#include "Core/Palette/data.hpp"
-#include "Core/Palette/manager.hpp"
-#include "Core/Service/manager.hpp"
-#include "Core/Utils/misc.hpp"
+#include "Core/Provider/bootstrap.hpp"
+#include "Core/Provider/carousel.hpp"
 #include "Core/appoptions.hpp"
 #include "Core/logger.hpp"
 #include "version.h"
@@ -25,108 +20,49 @@ using namespace WallReel::Core;
 WALLREEL_DECLARE_SENDER("Main")
 
 int main(int argc, char* argv[]) {
-    AppOptions s_options;
 
     QApplication a(argc, argv);
     a.setApplicationName(APP_NAME);
     a.setApplicationVersion(APP_VERSION);
     a.setWindowIcon(QIcon(QString(":/%1.svg").arg(APP_NAME)));
 
-    Logger::init();
-    s_options.parseArgs(a);
+    {
+        Logger::init();
 
-    if (s_options.doReturn) {
-        return s_options.errorText.isEmpty() ? 0 : 1;
+        AppOptions options;
+        options.parseArgs(a);
+
+        if (options.doReturn) {
+            return options.errorText.isEmpty() ? 0 : 1;
+        }
+
+        Provider::Bootstrap bootstrap(options);
+
+        if (options.clearCache) {
+            return 0;
+        }
+
+        Provider::Carousel provider(&a, bootstrap);
+        qmlRegisterSingletonInstance(
+            COREMODULE_URI,
+            MODULE_VERSION_MAJOR,
+            MODULE_VERSION_MINOR,
+            "CarouselProvider",
+            &provider);
+        {
+            QQmlApplicationEngine engine;
+
+            QObject::connect(
+                &engine,
+                &QQmlApplicationEngine::objectCreationFailed,
+                &a,
+                []() { QCoreApplication::exit(-1); },
+                Qt::QueuedConnection);
+            engine.loadFromModule(UIMODULE_URI, "Main");
+
+            provider.start();
+
+            return a.exec();
+        }
     }
-
-    QQmlApplicationEngine engine;
-
-    auto cacheMgr = new Cache::Manager(Utils::getCacheDir());
-
-    if (s_options.clearCache) {
-        cacheMgr->clearCache();
-        return 0;
-    }
-
-    auto config = new Config::Manager(
-        Utils::getConfigDir(),
-        s_options.appendDirs,
-        s_options.configPath,
-        &engine);
-    qmlRegisterSingletonInstance(
-        COREMODULE_URI,
-        MODULE_VERSION_MAJOR,
-        MODULE_VERSION_MINOR,
-        "Config",
-        config);
-
-    auto imageModel = new Image::Model(
-        config->getSortConfig(),
-        *cacheMgr,
-        config->getFocusImageSize(),
-        config);
-    qmlRegisterSingletonInstance(
-        COREMODULE_URI,
-        MODULE_VERSION_MAJOR,
-        MODULE_VERSION_MINOR,
-        "ImageModel",
-        imageModel);
-
-    auto paletteMgr = new Palette::Manager(
-        config->getThemeConfig(),
-        *imageModel,
-        imageModel);
-    engine.rootContext()->setContextProperty("PaletteManager", paletteMgr);
-    qRegisterMetaType<Palette::PaletteItem>("PaletteItem");
-    qRegisterMetaType<Palette::ColorItem>("ColorItem");
-
-    auto Service = new Service::Manager(
-        config->getActionConfig(),
-        *imageModel,
-        *paletteMgr,
-        paletteMgr);
-    qmlRegisterSingletonInstance(
-        COREMODULE_URI,
-        MODULE_VERSION_MAJOR,
-        MODULE_VERSION_MINOR,
-        "ServiceManager",
-        Service);
-    if (config->getActionConfig().quitOnSelected) {
-        QObject::connect(
-            Service,
-            &Service::Manager::selectCompleted,
-            &a,
-            &QApplication::quit,
-            Qt::QueuedConnection);
-    }
-    QObject::connect(
-        Service,
-        &Service::Manager::cancelCompleted,
-        &a,
-        &QApplication::quit,
-        Qt::QueuedConnection);
-    if (config->getActionConfig().restoreOnClose) {
-        QObject::connect(
-            &a,
-            &QApplication::aboutToQuit,
-            Service,
-            [Service]() {
-                if (!Service->hasSelected()) {
-                    Service->restore();
-                }
-            });
-    }
-
-    QObject::connect(
-        &engine,
-        &QQmlApplicationEngine::objectCreationFailed,
-        &a,
-        []() { QCoreApplication::exit(-1); },
-        Qt::QueuedConnection);
-    engine.loadFromModule(UIMODULE_URI, "Main");
-
-    config->captureState();
-    imageModel->loadAndProcess(config->getWallpapers());
-
-    return a.exec();
 }