Merge pull request #1052 from flowln/resource_model

launcher/CMakeLists.txt

@@ -318,10 +318,16 @@ set(MINECRAFT_SOURCES
     minecraft/mod/ModDetails.h
     minecraft/mod/ModFolderModel.h
     minecraft/mod/ModFolderModel.cpp
+    minecraft/mod/Resource.h
+    minecraft/mod/Resource.cpp
+    minecraft/mod/ResourceFolderModel.h
+    minecraft/mod/ResourceFolderModel.cpp
     minecraft/mod/ResourcePackFolderModel.h
     minecraft/mod/ResourcePackFolderModel.cpp
     minecraft/mod/TexturePackFolderModel.h
     minecraft/mod/TexturePackFolderModel.cpp
+    minecraft/mod/ShaderPackFolderModel.h
+    minecraft/mod/tasks/BasicFolderLoadTask.h
     minecraft/mod/tasks/ModFolderLoadTask.h
     minecraft/mod/tasks/ModFolderLoadTask.cpp
     minecraft/mod/tasks/LocalModParseTask.h
@@ -375,8 +381,8 @@ ecm_add_test(minecraft/Library_test.cpp LINK_LIBRARIES Launcher_logic Qt${QT_VER
 
 # FIXME: shares data with FileSystem test
 # TODO: needs testdata
-ecm_add_test(minecraft/mod/ModFolderModel_test.cpp LINK_LIBRARIES Launcher_logic Qt${QT_VERSION_MAJOR}::Test
+ecm_add_test(minecraft/mod/ResourceFolderModel_test.cpp LINK_LIBRARIES Launcher_logic Qt${QT_VERSION_MAJOR}::Test
-    TEST_NAME ModFolderModel)
+    TEST_NAME ResourceFolderModel)
 
 ecm_add_test(minecraft/ParseUtils_test.cpp LINK_LIBRARIES Launcher_logic Qt${QT_VERSION_MAJOR}::Test
     TEST_NAME ParseUtils)
@@ -881,8 +887,8 @@ SET(LAUNCHER_SOURCES
     ui/widgets/LineSeparator.h
     ui/widgets/LogView.cpp
     ui/widgets/LogView.h
-    ui/widgets/MCModInfoFrame.cpp
+    ui/widgets/InfoFrame.cpp
-    ui/widgets/MCModInfoFrame.h
+    ui/widgets/InfoFrame.h
     ui/widgets/ModFilterWidget.cpp
     ui/widgets/ModFilterWidget.h
     ui/widgets/ModListView.cpp
@@ -944,7 +950,7 @@ qt_wrap_ui(LAUNCHER_UI
     ui/pages/modplatform/technic/TechnicPage.ui
     ui/widgets/InstanceCardWidget.ui
     ui/widgets/CustomCommands.ui
-    ui/widgets/MCModInfoFrame.ui
+    ui/widgets/InfoFrame.ui
     ui/widgets/ModFilterWidget.ui
     ui/dialogs/CopyInstanceDialog.ui
     ui/dialogs/ProfileSetupDialog.ui

launcher/InstancePageProvider.h

@@ -37,9 +37,9 @@ public:
         modsPage->setFilter("%1 (*.zip *.jar *.litemod)");
         values.append(modsPage);
         values.append(new CoreModFolderPage(onesix.get(), onesix->coreModList()));
-        values.append(new ResourcePackPage(onesix.get()));
+        values.append(new ResourcePackPage(onesix.get(), onesix->resourcePackList()));
-        values.append(new TexturePackPage(onesix.get()));
+        values.append(new TexturePackPage(onesix.get(), onesix->texturePackList()));
-        values.append(new ShaderPackPage(onesix.get()));
+        values.append(new ShaderPackPage(onesix.get(), onesix->shaderPackList()));
         values.append(new NotesPage(onesix.get()));
         values.append(new WorldListPage(onesix.get(), onesix->worldList()));
         values.append(new ServersPage(onesix));

launcher/MMCZip.cpp

@@ -148,7 +148,7 @@ bool MMCZip::createModdedJar(QString sourceJarPath, QString targetJarPath, const
         // do not merge disabled mods.
         if (!mod->enabled())
             continue;
-        if (mod->type() == Mod::MOD_ZIPFILE)
+        if (mod->type() == ResourceType::ZIPFILE)
         {
             if (!mergeZipFiles(&zipOut, mod->fileinfo(), addedFiles))
             {
@@ -158,7 +158,7 @@ bool MMCZip::createModdedJar(QString sourceJarPath, QString targetJarPath, const
                 return false;
             }
         }
-        else if (mod->type() == Mod::MOD_SINGLEFILE)
+        else if (mod->type() == ResourceType::SINGLEFILE)
         {
             // FIXME: buggy - does not work with addedFiles
             auto filename = mod->fileinfo();
@@ -171,7 +171,7 @@ bool MMCZip::createModdedJar(QString sourceJarPath, QString targetJarPath, const
             }
             addedFiles.insert(filename.fileName());
         }
-        else if (mod->type() == Mod::MOD_FOLDER)
+        else if (mod->type() == ResourceType::FOLDER)
         {
             // untested, but seems to be unused / not possible to reach
             // FIXME: buggy - does not work with addedFiles

launcher/minecraft/MinecraftInstance.cpp

@@ -76,6 +76,7 @@
 
 #include "mod/ModFolderModel.h"
 #include "mod/ResourcePackFolderModel.h"
+#include "mod/ShaderPackFolderModel.h"
 #include "mod/TexturePackFolderModel.h"
 
 #include "WorldList.h"
@@ -714,7 +715,7 @@ QStringList MinecraftInstance::verboseDescription(AuthSessionPtr session, Minecr
             });
             for(auto mod: modList)
             {
-                if(mod->type() == Mod::MOD_FOLDER)
+                if(mod->type() == ResourceType::FOLDER)
                 {
                     out << u8"  [🖿] " + mod->fileinfo().completeBaseName() + " (folder)";
                     continue;
@@ -1092,18 +1093,18 @@ std::shared_ptr<ModFolderModel> MinecraftInstance::coreModList() const
     return m_core_mod_list;
 }
 
-std::shared_ptr<ModFolderModel> MinecraftInstance::resourcePackList() const
+std::shared_ptr<ResourcePackFolderModel> MinecraftInstance::resourcePackList() const
 {
     if (!m_resource_pack_list)
     {
         m_resource_pack_list.reset(new ResourcePackFolderModel(resourcePacksDir()));
-        m_resource_pack_list->disableInteraction(isRunning());
+        m_resource_pack_list->enableInteraction(!isRunning());
-        connect(this, &BaseInstance::runningStatusChanged, m_resource_pack_list.get(), &ModFolderModel::disableInteraction);
+        connect(this, &BaseInstance::runningStatusChanged, m_resource_pack_list.get(), &ResourcePackFolderModel::disableInteraction);
     }
     return m_resource_pack_list;
 }
 
-std::shared_ptr<ModFolderModel> MinecraftInstance::texturePackList() const
+std::shared_ptr<TexturePackFolderModel> MinecraftInstance::texturePackList() const
 {
     if (!m_texture_pack_list)
     {
@@ -1114,11 +1115,11 @@ std::shared_ptr<ModFolderModel> MinecraftInstance::texturePackList() const
     return m_texture_pack_list;
 }
 
-std::shared_ptr<ModFolderModel> MinecraftInstance::shaderPackList() const
+std::shared_ptr<ShaderPackFolderModel> MinecraftInstance::shaderPackList() const
 {
     if (!m_shader_pack_list)
     {
-        m_shader_pack_list.reset(new ResourcePackFolderModel(shaderPacksDir()));
+        m_shader_pack_list.reset(new ShaderPackFolderModel(shaderPacksDir()));
         m_shader_pack_list->disableInteraction(isRunning());
         connect(this, &BaseInstance::runningStatusChanged, m_shader_pack_list.get(), &ModFolderModel::disableInteraction);
     }

launcher/minecraft/MinecraftInstance.h

@@ -7,6 +7,10 @@
 #include "minecraft/launch/MinecraftServerTarget.h"
 
 class ModFolderModel;
+class ResourceFolderModel;
+class ResourcePackFolderModel;
+class ShaderPackFolderModel;
+class TexturePackFolderModel;
 class WorldList;
 class GameOptions;
 class LaunchStep;
@@ -72,9 +76,9 @@ public:
     //////  Mod Lists  //////
     std::shared_ptr<ModFolderModel> loaderModList() const;
     std::shared_ptr<ModFolderModel> coreModList() const;
-    std::shared_ptr<ModFolderModel> resourcePackList() const;
+    std::shared_ptr<ResourcePackFolderModel> resourcePackList() const;
-    std::shared_ptr<ModFolderModel> texturePackList() const;
+    std::shared_ptr<TexturePackFolderModel> texturePackList() const;
-    std::shared_ptr<ModFolderModel> shaderPackList() const;
+    std::shared_ptr<ShaderPackFolderModel> shaderPackList() const;
     std::shared_ptr<WorldList> worldList() const;
     std::shared_ptr<GameOptions> gameOptionsModel() const;
 
@@ -125,9 +129,9 @@ protected: // data
     std::shared_ptr<PackProfile> m_components;
     mutable std::shared_ptr<ModFolderModel> m_loader_mod_list;
     mutable std::shared_ptr<ModFolderModel> m_core_mod_list;
-    mutable std::shared_ptr<ModFolderModel> m_resource_pack_list;
+    mutable std::shared_ptr<ResourcePackFolderModel> m_resource_pack_list;
-    mutable std::shared_ptr<ModFolderModel> m_shader_pack_list;
+    mutable std::shared_ptr<ShaderPackFolderModel> m_shader_pack_list;
-    mutable std::shared_ptr<ModFolderModel> m_texture_pack_list;
+    mutable std::shared_ptr<TexturePackFolderModel> m_texture_pack_list;
     mutable std::shared_ptr<WorldList> m_world_list;
     mutable std::shared_ptr<GameOptions> m_game_options;
 };

launcher/minecraft/mod/Mod.cpp

@@ -36,130 +36,77 @@
 
 #include "Mod.h"
 
+#include <QDebug>
 #include <QDir>
 #include <QString>
+#include <QRegularExpression>
 
-#include <FileSystem.h>
-#include <QDebug>
-
-#include "Application.h"
 #include "MetadataHandler.h"
+#include "Version.h"
 
-namespace {
+Mod::Mod(const QFileInfo& file) : Resource(file), m_local_details()
-
-ModDetails invalidDetails;
-
-}
-
-Mod::Mod(const QFileInfo& file)
 {
-    repath(file);
+    m_enabled = (file.suffix() != "disabled");
-    m_changedDateTime = file.lastModified();
 }
 
 Mod::Mod(const QDir& mods_dir, const Metadata::ModStruct& metadata)
-    : m_file(mods_dir.absoluteFilePath(metadata.filename))
+    : Mod(mods_dir.absoluteFilePath(metadata.filename))
-    , m_internal_id(metadata.filename)
-    , m_name(metadata.name)
 {
-    if (m_file.isDir()) {
+    m_name = metadata.name;
-        m_type = MOD_FOLDER;
+    m_local_details.metadata = std::make_shared<Metadata::ModStruct>(std::move(metadata));
-    } else {
-        if (metadata.filename.endsWith(".zip") || metadata.filename.endsWith(".jar"))
-            m_type = MOD_ZIPFILE;
-        else if (metadata.filename.endsWith(".litemod"))
-            m_type = MOD_LITEMOD;
-        else
-            m_type = MOD_SINGLEFILE;
-    }
-
-    m_enabled = true;
-    m_changedDateTime = m_file.lastModified();
-
-    m_temp_metadata = std::make_shared<Metadata::ModStruct>(std::move(metadata));
-}
-
-void Mod::repath(const QFileInfo& file)
-{
-    m_file = file;
-    QString name_base = file.fileName();
-
-    m_type = Mod::MOD_UNKNOWN;
-
-    m_internal_id = name_base;
-
-    if (m_file.isDir()) {
-        m_type = MOD_FOLDER;
-        m_name = name_base;
-    } else if (m_file.isFile()) {
-        if (name_base.endsWith(".disabled")) {
-            m_enabled = false;
-            name_base.chop(9);
-        } else {
-            m_enabled = true;
-        }
-        if (name_base.endsWith(".zip") || name_base.endsWith(".jar")) {
-            m_type = MOD_ZIPFILE;
-            name_base.chop(4);
-        } else if (name_base.endsWith(".litemod")) {
-            m_type = MOD_LITEMOD;
-            name_base.chop(8);
-        } else {
-            m_type = MOD_SINGLEFILE;
-        }
-        m_name = name_base;
-    }
-}
-
-auto Mod::enable(bool value) -> bool
-{
-    if (m_type == Mod::MOD_UNKNOWN || m_type == Mod::MOD_FOLDER)
-        return false;
-
-    if (m_enabled == value)
-        return false;
-
-    QString path = m_file.absoluteFilePath();
-    QFile file(path);
-    if (value) {
-        if (!path.endsWith(".disabled"))
-            return false;
-        path.chop(9);
-
-        if (!file.rename(path))
-            return false;
-    } else {
-        path += ".disabled";
-
-        if (!file.rename(path))
-            return false;
-    }
-
-    if (status() == ModStatus::NoMetadata)
-        repath(QFileInfo(path));
-
-    m_enabled = value;
-    return true;
 }
 
 void Mod::setStatus(ModStatus status)
 {
-    if (m_localDetails) {
+    m_local_details.status = status;
-        m_localDetails->status = status;
-    } else {
-        m_temp_status = status;
-    }
 }
-void Mod::setMetadata(const Metadata::ModStruct& metadata)
+void Mod::setMetadata(std::shared_ptr<Metadata::ModStruct>&& metadata)
 {
     if (status() == ModStatus::NoMetadata)
         setStatus(ModStatus::Installed);
 
-    if (m_localDetails) {
+    m_local_details.metadata = metadata;
-        m_localDetails->metadata = std::make_shared<Metadata::ModStruct>(std::move(metadata));
+}
-    } else {
+
-        m_temp_metadata = std::make_shared<Metadata::ModStruct>(std::move(metadata));
+std::pair<int, bool> Mod::compare(const Resource& other, SortType type) const
+{
+    auto cast_other = dynamic_cast<Mod const*>(&other);
+    if (!cast_other)
+        return Resource::compare(other, type);
+
+    switch (type) {
+        default:
+        case SortType::ENABLED:
+        case SortType::NAME:
+        case SortType::DATE: {
+            auto res = Resource::compare(other, type);
+            if (res.first != 0)
+                return res;
         }
+        case SortType::VERSION: {
+            auto this_ver = Version(version());
+            auto other_ver = Version(cast_other->version());
+            if (this_ver > other_ver)
+                return { 1, type == SortType::VERSION };
+            if (this_ver < other_ver)
+                return { -1, type == SortType::VERSION };
+        }
+    }
+    return { 0, false };
+}
+
+bool Mod::applyFilter(QRegularExpression filter) const
+{
+    if (filter.match(description()).hasMatch())
+        return true;
+
+    for (auto& author : authors()) {
+        if (filter.match(author).hasMatch()) {
+            return true;
+        }
+    }
+
+    return Resource::applyFilter(filter);
 }
 
 auto Mod::destroy(QDir& index_dir, bool preserve_metadata) -> bool
@@ -175,13 +122,12 @@ auto Mod::destroy(QDir& index_dir, bool preserve_metadata) -> bool
         }
     }
 
-    m_type = MOD_UNKNOWN;
+    return Resource::destroy();
-    return FS::deletePath(m_file.filePath());
 }
 
 auto Mod::details() const -> const ModDetails&
 {
-    return m_localDetails ? *m_localDetails : invalidDetails;
+    return m_local_details;
 }
 
 auto Mod::name() const -> QString
@@ -218,35 +164,29 @@ auto Mod::authors() const -> QStringList
 
 auto Mod::status() const -> ModStatus
 {
-    if (!m_localDetails)
-        return m_temp_status;
     return details().status;
 }
 
 auto Mod::metadata() -> std::shared_ptr<Metadata::ModStruct>
 {
-    if (m_localDetails)
+    return m_local_details.metadata;
-        return m_localDetails->metadata;
-    return m_temp_metadata;
 }
 
 auto Mod::metadata() const -> const std::shared_ptr<Metadata::ModStruct>
 {
-    if (m_localDetails)
+    return m_local_details.metadata;
-        return m_localDetails->metadata;
-    return m_temp_metadata;
 }
 
-void Mod::finishResolvingWithDetails(std::shared_ptr<ModDetails> details)
+void Mod::finishResolvingWithDetails(ModDetails&& details)
 {
-    m_resolving = false;
+    m_is_resolving = false;
-    m_resolved = true;
+    m_is_resolved = true;
-    m_localDetails = details;
 
-    setStatus(m_temp_status);
+    std::shared_ptr<Metadata::ModStruct> metadata = details.metadata;
+    if (details.status == ModStatus::Unknown)
+        details.status = m_local_details.status;
 
-    if (m_localDetails && m_temp_metadata && m_temp_metadata->isValid()) {
+    m_local_details = std::move(details);
-        setMetadata(*m_temp_metadata);
+    if (metadata)
-        m_temp_metadata.reset();
+        setMetadata(std::move(metadata));
-    }
 }

launcher/minecraft/mod/Mod.h

@@ -39,38 +39,23 @@
 #include <QFileInfo>
 #include <QList>
 
-#include "QObjectPtr.h"
+#include "Resource.h"
 #include "ModDetails.h"
 
-class Mod : public QObject
+class Mod : public Resource
 {
     Q_OBJECT
 public:
-    enum ModType
-    {
-        MOD_UNKNOWN,    //!< Indicates an unspecified mod type.
-        MOD_ZIPFILE,    //!< The mod is a zip file containing the mod's class files.
-        MOD_SINGLEFILE, //!< The mod is a single file (not a zip file).
-        MOD_FOLDER,     //!< The mod is in a folder on the filesystem.
-        MOD_LITEMOD,    //!< The mod is a litemod
-    };
-
     using Ptr = shared_qobject_ptr<Mod>;
+    using WeakPtr = QPointer<Mod>;
 
     Mod() = default;
     Mod(const QFileInfo &file);
-    explicit Mod(const QDir& mods_dir, const Metadata::ModStruct& metadata);
+    Mod(const QDir& mods_dir, const Metadata::ModStruct& metadata);
-
+    Mod(QString file_path) : Mod(QFileInfo(file_path)) {}
-    auto fileinfo()        const -> QFileInfo { return m_file; }
-    auto dateTimeChanged() const -> QDateTime { return m_changedDateTime; }
-    auto internal_id()     const -> QString { return m_internal_id; }
-    auto type()            const -> ModType { return m_type; }
-    auto enabled()         const -> bool { return m_enabled; }
-
-    auto valid() const -> bool { return m_type != MOD_UNKNOWN; }
 
     auto details()     const -> const ModDetails&;
-    auto name()        const -> QString;
+    auto name()        const -> QString override;
     auto version()     const -> QString;
     auto homeurl()     const -> QString;
     auto description() const -> QString;
@@ -81,46 +66,17 @@ public:
     auto metadata() const -> const std::shared_ptr<Metadata::ModStruct>;
 
     void setStatus(ModStatus status);
-    void setMetadata(const Metadata::ModStruct& metadata);
+    void setMetadata(std::shared_ptr<Metadata::ModStruct>&& metadata);
+    void setMetadata(const Metadata::ModStruct& metadata) { setMetadata(std::make_shared<Metadata::ModStruct>(metadata)); }
 
-    auto enable(bool value) -> bool;
+    [[nodiscard]] auto compare(Resource const& other, SortType type) const -> std::pair<int, bool> override;
+    [[nodiscard]] bool applyFilter(QRegularExpression filter) const override;
 
-    // delete all the files of this mod
+    // Delete all the files of this mod
     auto destroy(QDir& index_dir, bool preserve_metadata = false) -> bool;
 
-    // change the mod's filesystem path (used by mod lists for *MAGIC* purposes)
+    void finishResolvingWithDetails(ModDetails&& details);
-    void repath(const QFileInfo &file);
-
-    auto shouldResolve()    const -> bool { return !m_resolving && !m_resolved; }
-    auto isResolving()      const -> bool { return m_resolving; }
-    auto resolutionTicket() const -> int  { return m_resolutionTicket; }
-
-    void setResolving(bool resolving, int resolutionTicket) {
-        m_resolving = resolving;
-        m_resolutionTicket = resolutionTicket;
-    }
-    void finishResolvingWithDetails(std::shared_ptr<ModDetails> details);
 
 protected:
-    QFileInfo m_file;
+    ModDetails m_local_details;
-    QDateTime m_changedDateTime;
-
-    QString m_internal_id;
-    /* Name as reported via the file name */
-    QString m_name;
-    ModType m_type = MOD_UNKNOWN;
-
-    /* If the mod has metadata, this will be filled in the constructor, and passed to 
-     * the ModDetails when calling finishResolvingWithDetails */
-    std::shared_ptr<Metadata::ModStruct> m_temp_metadata;
-
-    /* Set the mod status while it doesn't have local details just yet */
-    ModStatus m_temp_status = ModStatus::NoMetadata;
-
-    std::shared_ptr<ModDetails> m_localDetails;
-
-    bool m_enabled = true;
-    bool m_resolving = false;
-    bool m_resolved = false;
-    int m_resolutionTicket = 0;
 };

launcher/minecraft/mod/ModDetails.h

@@ -46,34 +46,77 @@ enum class ModStatus {
     Installed,      // Both JAR and Metadata are present
     NotInstalled,   // Only the Metadata is present
     NoMetadata,     // Only the JAR is present
+    Unknown,        // Default status
 };
 
 struct ModDetails
 {
     /* Mod ID as defined in the ModLoader-specific metadata */
-    QString mod_id;
+    QString mod_id = {};
     
     /* Human-readable name */
-    QString name;
+    QString name = {};
     
     /* Human-readable mod version */
-    QString version;
+    QString version = {};
     
     /* Human-readable minecraft version */
-    QString mcversion;
+    QString mcversion = {};
     
     /* URL for mod's home page */
-    QString homeurl;
+    QString homeurl = {};
     
     /* Human-readable description */
-    QString description;
+    QString description = {};
 
     /* List of the author's names */
-    QStringList authors;
+    QStringList authors = {};
 
     /* Installation status of the mod */
-    ModStatus status;
+    ModStatus status = ModStatus::Unknown;
 
     /* Metadata information, if any */
-    std::shared_ptr<Metadata::ModStruct> metadata;
+    std::shared_ptr<Metadata::ModStruct> metadata = nullptr;
+
+    ModDetails() = default;
+
+    /** Metadata should be handled manually to properly set the mod status. */
+    ModDetails(ModDetails& other)
+        : mod_id(other.mod_id)
+        , name(other.name)
+        , version(other.version)
+        , mcversion(other.mcversion)
+        , homeurl(other.homeurl)
+        , description(other.description)
+        , authors(other.authors)
+        , status(other.status)
+    {}
+
+    ModDetails& operator=(ModDetails& other)
+    {
+        this->mod_id = other.mod_id;
+        this->name = other.name;
+        this->version = other.version;
+        this->mcversion = other.mcversion;
+        this->homeurl = other.homeurl;
+        this->description = other.description;
+        this->authors = other.authors;
+        this->status = other.status;
+
+        return *this;
+    }
+
+    ModDetails& operator=(ModDetails&& other)
+    {
+        this->mod_id = other.mod_id;
+        this->name = other.name;
+        this->version = other.version;
+        this->mcversion = other.mcversion;
+        this->homeurl = other.homeurl;
+        this->description = other.description;
+        this->authors = other.authors;
+        this->status = other.status;
+
+        return *this;
+    }
 };

launcher/minecraft/mod/ModFolderModel.cpp

@@ -49,432 +49,53 @@
 #include "minecraft/mod/tasks/LocalModParseTask.h"
 #include "minecraft/mod/tasks/ModFolderLoadTask.h"
 
-ModFolderModel::ModFolderModel(const QString &dir, bool is_indexed) : QAbstractListModel(), m_dir(dir), m_is_indexed(is_indexed)
+ModFolderModel::ModFolderModel(const QString &dir, bool is_indexed) : ResourceFolderModel(QDir(dir)), m_is_indexed(is_indexed)
 {
     FS::ensureFolderPathExists(m_dir.absolutePath());
-    m_dir.setFilter(QDir::Readable | QDir::NoDotAndDotDot | QDir::Files | QDir::Dirs);
+    m_column_sort_keys = { SortType::ENABLED, SortType::NAME, SortType::VERSION, SortType::DATE };
-    m_dir.setSorting(QDir::Name | QDir::IgnoreCase | QDir::LocaleAware);
-    m_watcher = new QFileSystemWatcher(this);
-    connect(m_watcher, SIGNAL(directoryChanged(QString)), this, SLOT(directoryChanged(QString)));
-}
-
-void ModFolderModel::startWatching()
-{
-    if(is_watching)
-        return;
-
-    // Remove orphaned metadata next time
-    m_first_folder_load = true;
-
-    update();
-
-    // Watch the mods folder
-    is_watching = m_watcher->addPath(m_dir.absolutePath());
-    if (is_watching) {
-        qDebug() << "Started watching " << m_dir.absolutePath();
-    } else {
-        qDebug() << "Failed to start watching " << m_dir.absolutePath();
-    }
-
-    // Watch the mods index folder
-    is_watching = m_watcher->addPath(indexDir().absolutePath());
-    if (is_watching) {
-        qDebug() << "Started watching " << indexDir().absolutePath();
-    } else {
-        qDebug() << "Failed to start watching " << indexDir().absolutePath();
-    }
-}
-
-void ModFolderModel::stopWatching()
-{
-    if(!is_watching)
-        return;
-
-    is_watching = !m_watcher->removePath(m_dir.absolutePath());
-    if (!is_watching) {
-        qDebug() << "Stopped watching " << m_dir.absolutePath();
-    } else {
-        qDebug() << "Failed to stop watching " << m_dir.absolutePath();
-    }
-
-    is_watching = !m_watcher->removePath(indexDir().absolutePath());
-    if (!is_watching) {
-        qDebug() << "Stopped watching " << indexDir().absolutePath();
-    } else {
-        qDebug() << "Failed to stop watching " << indexDir().absolutePath();
-    }
-}
-
-bool ModFolderModel::update()
-{
-    if (!isValid()) {
-        return false;
-    }
-    if(m_update) {
-        scheduled_update = true;
-        return true;
-    }
-
-    auto index_dir = indexDir();
-    auto task = new ModFolderLoadTask(dir(), index_dir, m_is_indexed, m_first_folder_load);
-    m_first_folder_load = false;
-
-    m_update = task->result();
-
-    QThreadPool *threadPool = QThreadPool::globalInstance();
-    connect(task, &ModFolderLoadTask::succeeded, this, &ModFolderModel::finishUpdate);
-    
-    threadPool->start(task);
-    return true;
-}
-
-void ModFolderModel::finishUpdate()
-{
-#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
-    auto currentList = modsIndex.keys();
-    QSet<QString> currentSet(currentList.begin(), currentList.end());
-    auto & newMods = m_update->mods;
-    auto newList = newMods.keys();
-    QSet<QString> newSet(newList.begin(), newList.end());
-#else
-    QSet<QString> currentSet = modsIndex.keys().toSet();
-    auto& newMods = m_update->mods;
-    QSet<QString> newSet = newMods.keys().toSet();
-#endif
-
-    // see if the kept mods changed in some way
-    {
-        QSet<QString> kept = currentSet;
-        kept.intersect(newSet);
-        for(auto& keptMod : kept) {
-            auto newMod = newMods[keptMod];
-            auto row = modsIndex[keptMod];
-            auto currentMod = mods[row];
-            if(newMod->dateTimeChanged() == currentMod->dateTimeChanged()) {
-                // no significant change, ignore...
-                continue;
-            }
-            auto oldMod = mods[row];
-            if(oldMod->isResolving()) {
-                activeTickets.remove(oldMod->resolutionTicket());
-            }
-
-            mods[row] = newMod;
-            resolveMod(mods[row]);
-            emit dataChanged(index(row, 0), index(row, columnCount(QModelIndex()) - 1));
-        }
-    }
-
-    // remove mods no longer present
-    {
-        QSet<QString> removed = currentSet;
-        QList<int> removedRows;
-        removed.subtract(newSet);
-        for(auto & removedMod: removed) {
-            removedRows.append(modsIndex[removedMod]);
-        }
-        std::sort(removedRows.begin(), removedRows.end(), std::greater<int>());
-        for(auto iter = removedRows.begin(); iter != removedRows.end(); iter++) {
-            int removedIndex = *iter;
-            beginRemoveRows(QModelIndex(), removedIndex, removedIndex);
-            auto removedIter = mods.begin() + removedIndex;
-            if((*removedIter)->isResolving()) {
-                activeTickets.remove((*removedIter)->resolutionTicket());
-            }
-
-            mods.erase(removedIter);
-            endRemoveRows();
-        }
-    }
-
-    // add new mods to the end
-    {
-        QSet<QString> added = newSet;
-        added.subtract(currentSet);
-
-        // When you have a Qt build with assertions turned on, proceeding here will abort the application
-        if (added.size() > 0) {
-            beginInsertRows(QModelIndex(), mods.size(), mods.size() + added.size() - 1);
-            for (auto& addedMod : added) {
-                mods.append(newMods[addedMod]);
-                resolveMod(mods.last());
-            }
-            endInsertRows();
-        }
-    }
-
-    // update index
-    {
-        modsIndex.clear();
-        int idx = 0;
-        for(auto mod: mods) {
-            modsIndex[mod->internal_id()] = idx;
-            idx++;
-        }
-    }
-
-    m_update.reset();
-
-    emit updateFinished();
-
-    if(scheduled_update) {
-        scheduled_update = false;
-        update();
-    }
-}
-
-void ModFolderModel::resolveMod(Mod::Ptr m)
-{
-    if(!m->shouldResolve()) {
-        return;
-    }
-
-    auto task = new LocalModParseTask(nextResolutionTicket, m->type(), m->fileinfo());
-    auto result = task->result();
-    result->id = m->internal_id();
-    activeTickets.insert(nextResolutionTicket, result);
-    m->setResolving(true, nextResolutionTicket);
-    nextResolutionTicket++;
-    QThreadPool *threadPool = QThreadPool::globalInstance();
-    connect(task, &LocalModParseTask::finished, this, &ModFolderModel::finishModParse);
-    threadPool->start(task);
-}
-
-void ModFolderModel::finishModParse(int token)
-{
-    auto iter = activeTickets.find(token);
-    if(iter == activeTickets.end()) {
-        return;
-    }
-    auto result = *iter;
-    activeTickets.remove(token);
-    int row = modsIndex[result->id];
-    auto mod = mods[row];
-    mod->finishResolvingWithDetails(result->details);
-    emit dataChanged(index(row), index(row, columnCount(QModelIndex()) - 1));
-}
-
-void ModFolderModel::disableInteraction(bool disabled)
-{
-    if (interaction_disabled == disabled) {
-        return;
-    }
-    interaction_disabled = disabled;
-    if(size()) {
-        emit dataChanged(index(0), index(size() - 1));
-    }
-}
-
-void ModFolderModel::directoryChanged(QString path)
-{
-    update();
-}
-
-bool ModFolderModel::isValid()
-{
-    return m_dir.exists() && m_dir.isReadable();
-}
-
-auto ModFolderModel::selectedMods(QModelIndexList& indexes) -> QList<Mod::Ptr>
-{
-    QList<Mod::Ptr> selected_mods;
-    for (auto i : indexes) {
-        if(i.column() != 0)
-            continue;
-
-        selected_mods.push_back(mods[i.row()]);
-    }
-    return selected_mods;
-}
-
-// FIXME: this does not take disabled mod (with extra .disable extension) into account...
-bool ModFolderModel::installMod(const QString &filename)
-{
-    if(interaction_disabled) {
-        return false;
-    }
-
-    // NOTE: fix for GH-1178: remove trailing slash to avoid issues with using the empty result of QFileInfo::fileName
-    auto originalPath = FS::NormalizePath(filename);
-    QFileInfo fileinfo(originalPath);
-
-    if (!fileinfo.exists() || !fileinfo.isReadable())
-    {
-        qWarning() << "Caught attempt to install non-existing file or file-like object:" << originalPath;
-        return false;
-    }
-    qDebug() << "installing: " << fileinfo.absoluteFilePath();
-
-    Mod installedMod(fileinfo);
-    if (!installedMod.valid())
-    {
-        qDebug() << originalPath << "is not a valid mod. Ignoring it.";
-        return false;
-    }
-
-    auto type = installedMod.type();
-    if (type == Mod::MOD_UNKNOWN)
-    {
-        qDebug() << "Cannot recognize mod type of" << originalPath << ", ignoring it.";
-        return false;
-    }
-
-    auto newpath = FS::NormalizePath(FS::PathCombine(m_dir.path(), fileinfo.fileName()));
-    if(originalPath == newpath)
-    {
-        qDebug() << "Overwriting the mod (" << originalPath << ") with itself makes no sense...";
-        return false;
-    }
-
-    if (type == Mod::MOD_SINGLEFILE || type == Mod::MOD_ZIPFILE || type == Mod::MOD_LITEMOD)
-    {
-        if(QFile::exists(newpath) || QFile::exists(newpath + QString(".disabled")))
-        {
-            if(!QFile::remove(newpath))
-            {
-                // FIXME: report error in a user-visible way
-                qWarning() << "Copy from" << originalPath << "to" << newpath << "has failed.";
-                return false;
-            }
-            qDebug() << newpath << "has been deleted.";
-        }
-        if (!QFile::copy(fileinfo.filePath(), newpath))
-        {
-            qWarning() << "Copy from" << originalPath << "to" << newpath << "has failed.";
-            // FIXME: report error in a user-visible way
-            return false;
-        }
-        FS::updateTimestamp(newpath);
-        QFileInfo newpathInfo(newpath);
-        installedMod.repath(newpathInfo);
-        update();
-        return true;
-    }
-    else if (type == Mod::MOD_FOLDER)
-    {
-        QString from = fileinfo.filePath();
-        if(QFile::exists(newpath))
-        {
-            qDebug() << "Ignoring folder " << from << ", it would merge with " << newpath;
-            return false;
-        }
-
-        if (!FS::copy(from, newpath)())
-        {
-            qWarning() << "Copy of folder from" << originalPath << "to" << newpath << "has (potentially partially) failed.";
-            return false;
-        }
-        QFileInfo newpathInfo(newpath);
-        installedMod.repath(newpathInfo);
-        update();
-        return true;
-    }
-    return false;
-}
-
-bool ModFolderModel::uninstallMod(const QString& filename, bool preserve_metadata)
-{
-
-    for(auto mod : allMods()){
-        if(mod->fileinfo().fileName() == filename){
-            auto index_dir = indexDir();
-            mod->destroy(index_dir, preserve_metadata);
-            return true;
-        }
-    }
-
-    return false;
-}
-
-bool ModFolderModel::setModStatus(const QModelIndexList& indexes, ModStatusAction enable)
-{
-    if(interaction_disabled) {
-        return false;
-    }
-
-    if(indexes.isEmpty())
-        return true;
-
-    for (auto index: indexes)
-    {
-        if(index.column() != 0) {
-            continue;
-        }
-        setModStatus(index.row(), enable);
-    }
-    return true;
-}
-
-bool ModFolderModel::deleteMods(const QModelIndexList& indexes)
-{
-    if(interaction_disabled) {
-        return false;
-    }
-
-    if(indexes.isEmpty())
-        return true;
-
-    for (auto i: indexes)
-    {
-        if(i.column() != 0) {
-            continue;
-        }
-        auto m = mods[i.row()];
-        auto index_dir = indexDir();
-        m->destroy(index_dir);
-    }
-    return true;
-}
-
-int ModFolderModel::columnCount(const QModelIndex &parent) const
-{
-    return NUM_COLUMNS;
 }
 
 QVariant ModFolderModel::data(const QModelIndex &index, int role) const
 {
-    if (!index.isValid())
+    if (!validateIndex(index))
-        return QVariant();
+        return {};
 
     int row = index.row();
     int column = index.column();
 
-    if (row < 0 || row >= mods.size())
-        return QVariant();
-
     switch (role)
     {
     case Qt::DisplayRole:
         switch (column)
         {
         case NameColumn:
-            return mods[row]->name();
+            return m_resources[row]->name();
         case VersionColumn: {
-            switch(mods[row]->type()) {
+            switch(m_resources[row]->type()) {
-                case Mod::MOD_FOLDER:
+                case ResourceType::FOLDER:
                     return tr("Folder");
-                case Mod::MOD_SINGLEFILE:
+                case ResourceType::SINGLEFILE:
                     return tr("File");
                 default:
                     break;
             }
-            return mods[row]->version();
+            return at(row)->version();
         }
         case DateColumn:
-            return mods[row]->dateTimeChanged();
+            return m_resources[row]->dateTimeChanged();
 
         default:
             return QVariant();
         }
 
     case Qt::ToolTipRole:
-        return mods[row]->internal_id();
+        return m_resources[row]->internal_id();
 
     case Qt::CheckStateRole:
         switch (column)
         {
         case ActiveColumn:
-            return mods[row]->enabled() ? Qt::Checked : Qt::Unchecked;
+            return at(row)->enabled() ? Qt::Checked : Qt::Unchecked;
         default:
             return QVariant();
         }
@@ -483,61 +104,6 @@ QVariant ModFolderModel::data(const QModelIndex &index, int role) const
     }
 }
 
-bool ModFolderModel::setData(const QModelIndex &index, const QVariant &value, int role)
-{
-    if (index.row() < 0 || index.row() >= rowCount(index) || !index.isValid())
-    {
-        return false;
-    }
-
-    if (role == Qt::CheckStateRole)
-    {
-        return setModStatus(index.row(), Toggle);
-    }
-    return false;
-}
-
-bool ModFolderModel::setModStatus(int row, ModFolderModel::ModStatusAction action)
-{
-    if(row < 0 || row >= mods.size()) {
-        return false;
-    }
-
-    auto &mod = mods[row];
-    bool desiredStatus;
-    switch(action) {
-        case Enable:
-            desiredStatus = true;
-            break;
-        case Disable:
-            desiredStatus = false;
-            break;
-        case Toggle:
-        default:
-            desiredStatus = !mod->enabled();
-            break;
-    }
-
-    if(desiredStatus == mod->enabled()) {
-        return true;
-    }
-
-    // preserve the row, but change its ID
-    auto oldId = mod->internal_id();
-    if(!mod->enable(!mod->enabled())) {
-        return false;
-    }
-    auto newId = mod->internal_id();
-    if(modsIndex.contains(newId)) {
-        // NOTE: this could handle a corner case, where we are overwriting a file, because the same 'mod' exists both enabled and disabled
-        // But is it necessary?
-    }
-    modsIndex.remove(oldId);
-    modsIndex[newId] = row;
-    emit dataChanged(index(row, 0), index(row, columnCount(QModelIndex()) - 1));
-    return true;
-}
-
 QVariant ModFolderModel::headerData(int section, Qt::Orientation orientation, int role) const
 {
     switch (role)
@@ -577,65 +143,151 @@ QVariant ModFolderModel::headerData(int section, Qt::Orientation orientation, in
     return QVariant();
 }
 
-Qt::ItemFlags ModFolderModel::flags(const QModelIndex &index) const
+int ModFolderModel::columnCount(const QModelIndex &parent) const
 {
-    Qt::ItemFlags defaultFlags = QAbstractListModel::flags(index);
+    return NUM_COLUMNS;
-    auto flags = defaultFlags;
-    if(interaction_disabled) {
-        flags &= ~Qt::ItemIsDropEnabled;
-    }
-    else
-    {
-        flags |= Qt::ItemIsDropEnabled;
-        if(index.isValid()) {
-            flags |= Qt::ItemIsUserCheckable;
-        }
-    }
-    return flags;
 }
 
-Qt::DropActions ModFolderModel::supportedDropActions() const
+Task* ModFolderModel::createUpdateTask()
 {
-    // copy from outside, move from within and other mod lists
+    auto index_dir = indexDir();
-    return Qt::CopyAction | Qt::MoveAction;
+    auto task = new ModFolderLoadTask(dir(), index_dir, m_is_indexed, m_first_folder_load, this);
+    m_first_folder_load = false;
+    return task;
 }
 
-QStringList ModFolderModel::mimeTypes() const
+Task* ModFolderModel::createParseTask(Resource const& resource)
 {
-    QStringList types;
+    return new LocalModParseTask(m_next_resolution_ticket, resource.type(), resource.fileinfo());
-    types << "text/uri-list";
-    return types;
 }
 
-bool ModFolderModel::dropMimeData(const QMimeData* data, Qt::DropAction action, int, int, const QModelIndex&)
+bool ModFolderModel::uninstallMod(const QString& filename, bool preserve_metadata)
 {
-    if (action == Qt::IgnoreAction)
+    for(auto mod : allMods()){
-    {
+        if(mod->fileinfo().fileName() == filename){
+            auto index_dir = indexDir();
+            mod->destroy(index_dir, preserve_metadata);
+
+            update();
+
             return true;
         }
+    }
 
-    // check if the action is supported
+    return false;
-    if (!data || !(action & supportedDropActions()))
+}
-    {
+
+bool ModFolderModel::deleteMods(const QModelIndexList& indexes)
+{
+    if(!m_can_interact) {
         return false;
     }
 
-    // files dropped from outside?
+    if(indexes.isEmpty())
-    if (data->hasUrls())
+        return true;
-    {
+
-        auto urls = data->urls();
+    for (auto i: indexes)
-        for (auto url : urls)
-        {
-            // only local files may be dropped...
-            if (!url.isLocalFile())
     {
+        if(i.column() != 0) {
             continue;
         }
-            // TODO: implement not only copy, but also move
+        auto m = at(i.row());
-            // FIXME: handle errors here
+        auto index_dir = indexDir();
-            installMod(url.toLocalFile());
+        m->destroy(index_dir);
     }
+
+    update();
+
     return true;
-    }
+}
-    return false;
+
+bool ModFolderModel::isValid()
+{
+    return m_dir.exists() && m_dir.isReadable();
+}
+
+bool ModFolderModel::startWatching()
+{
+    // Remove orphaned metadata next time
+    m_first_folder_load = true;
+    return ResourceFolderModel::startWatching({ m_dir.absolutePath(), indexDir().absolutePath() });
+}
+
+bool ModFolderModel::stopWatching()
+{
+    return ResourceFolderModel::stopWatching({ m_dir.absolutePath(), indexDir().absolutePath() });
+}
+
+auto ModFolderModel::selectedMods(QModelIndexList& indexes) -> QList<Mod*>
+{
+    QList<Mod*> selected_resources;
+    for (auto i : indexes) {
+        if(i.column() != 0)
+            continue;
+
+        selected_resources.push_back(at(i.row()));
+    }
+    return selected_resources;
+}
+
+auto ModFolderModel::allMods() -> QList<Mod*>
+{
+    QList<Mod*> mods;
+
+    for (auto& res : m_resources) {
+        mods.append(static_cast<Mod*>(res.get()));
+    }
+
+    return mods;
+}
+
+void ModFolderModel::onUpdateSucceeded()
+{
+    auto update_results = static_cast<ModFolderLoadTask*>(m_current_update_task.get())->result();
+
+    auto& new_mods = update_results->mods;
+
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+    auto current_list = m_resources_index.keys();
+    QSet<QString> current_set(current_list.begin(), current_list.end());
+
+    auto new_list = new_mods.keys();
+    QSet<QString> new_set(new_list.begin(), new_list.end());
+#else
+    QSet<QString> current_set(m_resources_index.keys().toSet());
+    QSet<QString> new_set(new_mods.keys().toSet());
+#endif
+
+    applyUpdates(current_set, new_set, new_mods);
+    
+    m_current_update_task.reset();
+
+    if (m_scheduled_update) {
+        m_scheduled_update = false;
+        update();
+    } else {
+        emit updateFinished();
+    }
+}
+
+void ModFolderModel::onParseSucceeded(int ticket, QString mod_id)
+{
+    auto iter = m_active_parse_tasks.constFind(ticket);
+    if (iter == m_active_parse_tasks.constEnd())
+        return;
+
+    int row = m_resources_index[mod_id];
+
+    auto parse_task = *iter;
+    auto cast_task = static_cast<LocalModParseTask*>(parse_task.get());
+
+    Q_ASSERT(cast_task->token() == ticket);
+
+    auto resource = find(mod_id);
+
+    auto result = cast_task->result();
+    if (result && resource)
+        resource->finishResolvingWithDetails(std::move(result->details));
+
+    emit dataChanged(index(row), index(row, columnCount(QModelIndex()) - 1));
 }

launcher/minecraft/mod/ModFolderModel.h

@@ -44,6 +44,7 @@
 #include <QAbstractListModel>
 
 #include "Mod.h"
+#include "ResourceFolderModel.h"
 
 #include "minecraft/mod/tasks/ModFolderLoadTask.h"
 #include "minecraft/mod/tasks/LocalModParseTask.h"
@@ -56,7 +57,7 @@ class QFileSystemWatcher;
  * A legacy mod list.
  * Backed by a folder.
  */
-class ModFolderModel : public QAbstractListModel
+class ModFolderModel : public ResourceFolderModel
 {
     Q_OBJECT
 public:
@@ -75,106 +76,38 @@ public:
     };
     ModFolderModel(const QString &dir, bool is_indexed = false);
 
-    virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
-    virtual bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) override;
-    Qt::DropActions supportedDropActions() const override;
 
-    /// flags, mostly to support drag&drop
+    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
-    virtual Qt::ItemFlags flags(const QModelIndex &index) const override;
+    int columnCount(const QModelIndex &parent) const override;
-    QStringList mimeTypes() const override;
-    bool dropMimeData(const QMimeData * data, Qt::DropAction action, int row, int column, const QModelIndex & parent) override;
 
-    virtual int rowCount(const QModelIndex &) const override
+    [[nodiscard]] Task* createUpdateTask() override;
-    {
+    [[nodiscard]] Task* createParseTask(Resource const&) override;
-        return size();
-    }
-
-    virtual QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
-    virtual int columnCount(const QModelIndex &parent) const override;
-
-    size_t size() const
-    {
-        return mods.size();
-    }
-    ;
-    bool empty() const
-    {
-        return size() == 0;
-    }
-    Mod& operator[](size_t index)
-    {
-        return *mods[index];
-    }
-    const Mod& at(size_t index) const
-    {
-        return *mods.at(index);
-    }
-
-    /// Reloads the mod list and returns true if the list changed.
-    bool update();
-
-    /**
-     * Adds the given mod to the list at the given index - if the list supports custom ordering
-     */
-    bool installMod(const QString& filename);
 
+    bool installMod(QString file_path) { return ResourceFolderModel::installResource(file_path); }
     bool uninstallMod(const QString& filename, bool preserve_metadata = false);
 
     /// Deletes all the selected mods
     bool deleteMods(const QModelIndexList &indexes);
 
-    /// Enable or disable listed mods
-    bool setModStatus(const QModelIndexList &indexes, ModStatusAction action);
-
-    void startWatching();
-    void stopWatching();
-
     bool isValid();
 
-    QDir& dir()
+    bool startWatching() override;
-    {
+    bool stopWatching() override;
-        return m_dir;
-    }
 
-    QDir indexDir()
+    QDir indexDir() { return { QString("%1/.index").arg(dir().absolutePath()) }; }
-    {
-        return { QString("%1/.index").arg(dir().absolutePath()) };
-    }
 
-    const QList<Mod::Ptr>& allMods()
+    auto selectedMods(QModelIndexList& indexes) -> QList<Mod*>;
-    {
+    auto allMods() -> QList<Mod*>;
-        return mods;
-    }
 
-    auto selectedMods(QModelIndexList& indexes) -> QList<Mod::Ptr>;
+    RESOURCE_HELPERS(Mod)
-
-public slots:
-    void disableInteraction(bool disabled);
 
 private
 slots:
-    void directoryChanged(QString path);
+    void onUpdateSucceeded() override;
-    void finishUpdate();
+    void onParseSucceeded(int ticket, QString resource_id) override;
-    void finishModParse(int token);
-
-signals:
-    void updateFinished();
-
-private:
-    void resolveMod(Mod::Ptr m);
-    bool setModStatus(int index, ModStatusAction action);
 
 protected:
-    QFileSystemWatcher *m_watcher;
-    bool is_watching = false;
-    ModFolderLoadTask::ResultPtr m_update;
-    bool scheduled_update = false;
-    bool interaction_disabled = false;
-    QDir m_dir;
     bool m_is_indexed;
     bool m_first_folder_load = true;
-    QMap<QString, int> modsIndex;
-    QMap<int, LocalModParseTask::ResultPtr> activeTickets;
-    int nextResolutionTicket = 0;
-    QList<Mod::Ptr> mods;
 };

launcher/minecraft/mod/ModFolderModel_test.cpp

@@ -1,92 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-only
-/*
-*  PolyMC - Minecraft Launcher
-*  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
-*
-*  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, version 3.
-*
-*  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/>.
-*
-* This file incorporates work covered by the following copyright and
-* permission notice:
-*
-*      Copyright 2013-2021 MultiMC Contributors
-*
-*      Licensed under the Apache License, Version 2.0 (the "License");
-*      you may not use this file except in compliance with the License.
-*      You may obtain a copy of the License at
-*
-*          http://www.apache.org/licenses/LICENSE-2.0
-*
-*      Unless required by applicable law or agreed to in writing, software
-*      distributed under the License is distributed on an "AS IS" BASIS,
-*      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-*      See the License for the specific language governing permissions and
-*      limitations under the License.
-*/
-
-#include <QTest>
-#include <QTemporaryDir>
-
-#include "FileSystem.h"
-#include "minecraft/mod/ModFolderModel.h"
-
-class ModFolderModelTest : public QObject
-{
-    Q_OBJECT
-
-private
-slots:
-    // test for GH-1178 - install a folder with files to a mod list
-    void test_1178()
-    {
-        // source
-        QString source = QFINDTESTDATA("testdata/test_folder");
-
-        // sanity check
-        QVERIFY(!source.endsWith('/'));
-
-        auto verify = [](QString path)
-        {
-            QDir target_dir(FS::PathCombine(path, "test_folder"));
-            QVERIFY(target_dir.entryList().contains("pack.mcmeta"));
-            QVERIFY(target_dir.entryList().contains("assets"));
-        };
-
-        // 1. test with no trailing /
-        {
-            QString folder = source;
-            QTemporaryDir tempDir;
-            QEventLoop loop;
-            ModFolderModel m(tempDir.path(), true);
-            connect(&m, &ModFolderModel::updateFinished, &loop, &QEventLoop::quit);
-            m.installMod(folder);
-            loop.exec();
-            verify(tempDir.path());
-        }
-
-        // 2. test with trailing /
-        {
-            QString folder = source + '/';
-            QTemporaryDir tempDir;
-            QEventLoop loop;
-            ModFolderModel m(tempDir.path(), true);
-            connect(&m, &ModFolderModel::updateFinished, &loop, &QEventLoop::quit);
-            m.installMod(folder);
-            loop.exec();
-            verify(tempDir.path());
-        }
-    }
-};
-
-QTEST_GUILESS_MAIN(ModFolderModelTest)
-
-#include "ModFolderModel_test.moc"

launcher/minecraft/mod/Resource.cpp

@@ -0,0 +1,147 @@
+#include "Resource.h"
+
+#include <QRegularExpression>
+
+#include "FileSystem.h"
+
+Resource::Resource(QObject* parent) : QObject(parent) {}
+
+Resource::Resource(QFileInfo file_info) : QObject()
+{
+    setFile(file_info);
+}
+
+void Resource::setFile(QFileInfo file_info)
+{
+    m_file_info = file_info;
+    parseFile();
+}
+
+void Resource::parseFile()
+{
+    QString file_name{ m_file_info.fileName() };
+
+    m_type = ResourceType::UNKNOWN;
+
+    m_internal_id = file_name;
+
+    if (m_file_info.isDir()) {
+        m_type = ResourceType::FOLDER;
+        m_name = file_name;
+    } else if (m_file_info.isFile()) {
+        if (file_name.endsWith(".disabled")) {
+            file_name.chop(9);
+            m_enabled = false;
+        }
+
+        if (file_name.endsWith(".zip") || file_name.endsWith(".jar")) {
+            m_type = ResourceType::ZIPFILE;
+            file_name.chop(4);
+        } else if (file_name.endsWith(".litemod")) {
+            m_type = ResourceType::LITEMOD;
+            file_name.chop(8);
+        } else {
+            m_type = ResourceType::SINGLEFILE;
+        }
+
+        m_name = file_name;
+    }
+
+    m_changed_date_time = m_file_info.lastModified();
+}
+
+static void removeThePrefix(QString& string)
+{
+    QRegularExpression regex(QStringLiteral("^(?:the|teh) +"), QRegularExpression::CaseInsensitiveOption);
+    string.remove(regex);
+    string = string.trimmed();
+}
+
+std::pair<int, bool> Resource::compare(const Resource& other, SortType type) const
+{
+    switch (type) {
+        default:
+        case SortType::ENABLED:
+            if (enabled() && !other.enabled())
+                return { 1, type == SortType::ENABLED };
+            if (!enabled() && other.enabled())
+                return { -1, type == SortType::ENABLED };
+        case SortType::NAME: {
+            QString this_name{ name() };
+            QString other_name{ other.name() };
+
+            removeThePrefix(this_name);
+            removeThePrefix(other_name);
+
+            auto compare_result = QString::compare(this_name, other_name, Qt::CaseInsensitive);
+            if (compare_result != 0)
+                return { compare_result, type == SortType::NAME };
+        }
+        case SortType::DATE:
+            if (dateTimeChanged() > other.dateTimeChanged())
+                return { 1, type == SortType::DATE };
+            if (dateTimeChanged() < other.dateTimeChanged())
+                return { -1, type == SortType::DATE };
+    }
+
+    return { 0, false };
+}
+
+bool Resource::applyFilter(QRegularExpression filter) const
+{
+    return filter.match(name()).hasMatch();
+}
+
+bool Resource::enable(EnableAction action)
+{
+    if (m_type == ResourceType::UNKNOWN || m_type == ResourceType::FOLDER)
+        return false;
+
+
+    QString path = m_file_info.absoluteFilePath();
+    QFile file(path);
+
+    bool enable = true;
+    switch (action) {
+        case EnableAction::ENABLE:
+            enable = true;
+            break;
+        case EnableAction::DISABLE:
+            enable = false;
+            break;
+        case EnableAction::TOGGLE:
+        default:
+            enable = !enabled();
+            break;
+    }
+
+    if (m_enabled == enable)
+        return false;
+
+    if (enable) {
+        // m_enabled is false, but there's no '.disabled' suffix.
+        // TODO: Report error?
+        if (!path.endsWith(".disabled"))
+            return false;
+        path.chop(9);
+
+        if (!file.rename(path))
+            return false;
+    } else {
+        path += ".disabled";
+
+        if (!file.rename(path))
+            return false;
+    }
+
+    setFile(QFileInfo(path));
+
+    m_enabled = enable;
+    return true;
+}
+
+bool Resource::destroy()
+{
+    m_type = ResourceType::UNKNOWN;
+    return FS::deletePath(m_file_info.filePath());
+}

launcher/minecraft/mod/Resource.h

@@ -0,0 +1,115 @@
+#pragma once
+
+#include <QDateTime>
+#include <QFileInfo>
+#include <QObject>
+#include <QPointer>
+
+#include "QObjectPtr.h"
+
+enum class ResourceType {
+    UNKNOWN,     //!< Indicates an unspecified resource type.
+    ZIPFILE,     //!< The resource is a zip file containing the resource's class files.
+    SINGLEFILE,  //!< The resource is a single file (not a zip file).
+    FOLDER,      //!< The resource is in a folder on the filesystem.
+    LITEMOD,     //!< The resource is a litemod
+};
+
+enum class SortType {
+    NAME,
+    DATE,
+    VERSION,
+    ENABLED,
+};
+
+enum class EnableAction {
+    ENABLE,
+    DISABLE,
+    TOGGLE
+};
+
+/** General class for managed resources. It mirrors a file in disk, with some more info
+ *  for display and house-keeping purposes.
+ *
+ *  Subclass it to add additional data / behavior, such as Mods or Resource packs.
+ */
+class Resource : public QObject {
+    Q_OBJECT
+    Q_DISABLE_COPY(Resource)
+   public:
+    using Ptr = shared_qobject_ptr<Resource>;
+    using WeakPtr = QPointer<Resource>;
+
+    Resource(QObject* parent = nullptr);
+    Resource(QFileInfo file_info);
+    Resource(QString file_path) : Resource(QFileInfo(file_path)) {}
+
+    ~Resource() override = default;
+
+    void setFile(QFileInfo file_info);
+    void parseFile();
+
+    [[nodiscard]] auto fileinfo() const -> QFileInfo { return m_file_info; }
+    [[nodiscard]] auto dateTimeChanged() const -> QDateTime { return m_changed_date_time; }
+    [[nodiscard]] auto internal_id() const -> QString { return m_internal_id; }
+    [[nodiscard]] auto type() const -> ResourceType { return m_type; }
+    [[nodiscard]] bool enabled() const { return m_enabled; }
+
+    [[nodiscard]] virtual auto name() const -> QString { return m_name; }
+    [[nodiscard]] virtual bool valid() const { return m_type != ResourceType::UNKNOWN; }
+
+    /** Compares two Resources, for sorting purposes, considering a ascending order, returning:
+     *  > 0: 'this' comes after 'other'
+     *  = 0: 'this' is equal to 'other'
+     *  < 0: 'this' comes before 'other'
+     *
+     *  The second argument in the pair is true if the sorting type that decided which one is greater was 'type'.
+     */
+    [[nodiscard]] virtual auto compare(Resource const& other, SortType type = SortType::NAME) const -> std::pair<int, bool>;
+
+    /** Returns whether the given filter should filter out 'this' (false),
+     *  or if such filter includes the Resource (true).
+     */
+    [[nodiscard]] virtual bool applyFilter(QRegularExpression filter) const;
+
+    /** Changes the enabled property, according to 'action'.
+     *
+     *  Returns whether a change was applied to the Resource's properties.
+     */
+    bool enable(EnableAction action);
+
+    [[nodiscard]] auto shouldResolve() const -> bool { return !m_is_resolving && !m_is_resolved; }
+    [[nodiscard]] auto isResolving() const -> bool { return m_is_resolving; }
+    [[nodiscard]] auto resolutionTicket() const -> int { return m_resolution_ticket; }
+
+    void setResolving(bool resolving, int resolutionTicket)
+    {
+        m_is_resolving = resolving;
+        m_resolution_ticket = resolutionTicket;
+    }
+
+    // Delete all files of this resource.
+    bool destroy();
+
+   protected:
+    /* The file corresponding to this resource. */
+    QFileInfo m_file_info;
+    /* The cached date when this file was last changed. */
+    QDateTime m_changed_date_time;
+
+    /* Internal ID for internal purposes. Properties such as human-readability should not be assumed. */
+    QString m_internal_id;
+    /* Name as reported via the file name. In the absence of a better name, this is shown to the user. */
+    QString m_name;
+
+    /* The type of file we're dealing with. */
+    ResourceType m_type = ResourceType::UNKNOWN;
+
+    /* Whether the resource is enabled (e.g. shows up in the game) or not. */
+    bool m_enabled = true;
+
+    /* Used to keep trach of pending / concluded actions on the resource. */
+    bool m_is_resolving = false;
+    bool m_is_resolved = false;
+    int m_resolution_ticket = 0;
+};

launcher/minecraft/mod/ResourceFolderModel.cpp

@@ -0,0 +1,522 @@
+#include "ResourceFolderModel.h"
+
+#include <QDebug>
+#include <QMimeData>
+#include <QThreadPool>
+#include <QUrl>
+
+#include "FileSystem.h"
+
+#include "minecraft/mod/tasks/BasicFolderLoadTask.h"
+
+#include "tasks/Task.h"
+
+ResourceFolderModel::ResourceFolderModel(QDir dir, QObject* parent) : QAbstractListModel(parent), m_dir(dir), m_watcher(this)
+{
+    m_dir.setFilter(QDir::Readable | QDir::NoDotAndDotDot | QDir::Files | QDir::Dirs);
+    m_dir.setSorting(QDir::Name | QDir::IgnoreCase | QDir::LocaleAware);
+
+    connect(&m_watcher, &QFileSystemWatcher::directoryChanged, this, &ResourceFolderModel::directoryChanged);
+}
+
+bool ResourceFolderModel::startWatching(const QStringList paths)
+{
+    if (m_is_watching)
+        return false;
+
+    auto couldnt_be_watched = m_watcher.addPaths(paths);
+    for (auto path : paths) {
+        if (couldnt_be_watched.contains(path))
+            qDebug() << "Failed to start watching " << path;
+        else
+            qDebug() << "Started watching " << path;
+    }
+
+    update();
+
+    m_is_watching = !m_is_watching;
+    return m_is_watching;
+}
+
+bool ResourceFolderModel::stopWatching(const QStringList paths)
+{
+    if (!m_is_watching)
+        return false;
+
+    auto couldnt_be_stopped = m_watcher.removePaths(paths);
+    for (auto path : paths) {
+        if (couldnt_be_stopped.contains(path))
+            qDebug() << "Failed to stop watching " << path;
+        else
+            qDebug() << "Stopped watching " << path;
+    }
+
+    m_is_watching = !m_is_watching;
+    return !m_is_watching;
+}
+
+bool ResourceFolderModel::installResource(QString original_path)
+{
+    if (!m_can_interact) {
+        return false;
+    }
+
+    // NOTE: fix for GH-1178: remove trailing slash to avoid issues with using the empty result of QFileInfo::fileName
+    original_path = FS::NormalizePath(original_path);
+    QFileInfo file_info(original_path);
+
+    if (!file_info.exists() || !file_info.isReadable()) {
+        qWarning() << "Caught attempt to install non-existing file or file-like object:" << original_path;
+        return false;
+    }
+    qDebug() << "Installing: " << file_info.absoluteFilePath();
+
+    Resource resource(file_info);
+    if (!resource.valid()) {
+        qWarning() << original_path << "is not a valid resource. Ignoring it.";
+        return false;
+    }
+
+    auto new_path = FS::NormalizePath(m_dir.filePath(file_info.fileName()));
+    if (original_path == new_path) {
+        qWarning() << "Overwriting the mod (" << original_path << ") with itself makes no sense...";
+        return false;
+    }
+
+    switch (resource.type()) {
+        case ResourceType::SINGLEFILE:
+        case ResourceType::ZIPFILE:
+        case ResourceType::LITEMOD: {
+            if (QFile::exists(new_path) || QFile::exists(new_path + QString(".disabled"))) {
+                if (!QFile::remove(new_path)) {
+                    qCritical() << "Cleaning up new location (" << new_path << ") was unsuccessful!";
+                    return false;
+                }
+                qDebug() << new_path << "has been deleted.";
+            }
+
+            if (!QFile::copy(original_path, new_path)) {
+                qCritical() << "Copy from" << original_path << "to" << new_path << "has failed.";
+                return false;
+            }
+
+            FS::updateTimestamp(new_path);
+
+            QFileInfo new_path_file_info(new_path);
+            resource.setFile(new_path_file_info);
+
+            if (!m_is_watching)
+                return update();
+
+            return true;
+        }
+        case ResourceType::FOLDER: {
+            if (QFile::exists(new_path)) {
+                qDebug() << "Ignoring folder '" << original_path << "', it would merge with" << new_path;
+                return false;
+            }
+
+            if (!FS::copy(original_path, new_path)()) {
+                qWarning() << "Copy of folder from" << original_path << "to" << new_path << "has (potentially partially) failed.";
+                return false;
+            }
+
+            QFileInfo newpathInfo(new_path);
+            resource.setFile(newpathInfo);
+
+            if (!m_is_watching)
+                return update();
+
+            return true;
+        }
+        default:
+            break;
+    }
+    return false;
+}
+
+bool ResourceFolderModel::uninstallResource(QString file_name)
+{
+    for (auto& resource : m_resources) {
+        if (resource->fileinfo().fileName() == file_name) {
+            auto res = resource->destroy();
+
+            update();
+
+            return res;
+        }
+    }
+    return false;
+}
+
+bool ResourceFolderModel::deleteResources(const QModelIndexList& indexes)
+{
+    if (!m_can_interact)
+        return false;
+
+    if (indexes.isEmpty())
+        return true;
+
+    for (auto i : indexes) {
+        if (i.column() != 0) {
+            continue;
+        }
+
+        auto& resource = m_resources.at(i.row());
+
+        resource->destroy();
+    }
+
+    update();
+
+    return true;
+}
+
+bool ResourceFolderModel::setResourceEnabled(const QModelIndexList &indexes, EnableAction action)
+{
+    if (!m_can_interact)
+        return false;
+
+    if (indexes.isEmpty())
+        return true;
+
+    bool succeeded = true;
+    for (auto const& idx : indexes) {
+        if (!validateIndex(idx) || idx.column() != 0)
+            continue;
+
+        int row = idx.row();
+
+        auto& resource = m_resources[row];
+
+        // Preserve the row, but change its ID
+        auto old_id = resource->internal_id();
+        if (!resource->enable(action)) {
+            succeeded = false;
+            continue;
+        }
+
+        auto new_id = resource->internal_id();
+        if (m_resources_index.contains(new_id)) {
+            // FIXME: https://github.com/PolyMC/PolyMC/issues/550
+        }
+
+        m_resources_index.remove(old_id);
+        m_resources_index[new_id] = row;
+
+        emit dataChanged(index(row, 0), index(row, columnCount(QModelIndex()) - 1));
+    }
+
+    return succeeded;
+}
+
+static QMutex s_update_task_mutex;
+bool ResourceFolderModel::update()
+{
+    // We hold a lock here to prevent race conditions on the m_current_update_task reset.
+    QMutexLocker lock(&s_update_task_mutex);
+
+    // Already updating, so we schedule a future update and return.
+    if (m_current_update_task) {
+        m_scheduled_update = true;
+        return false;
+    }
+
+    m_current_update_task.reset(createUpdateTask());
+    if (!m_current_update_task)
+        return false;
+
+    connect(m_current_update_task.get(), &Task::succeeded, this, &ResourceFolderModel::onUpdateSucceeded,
+            Qt::ConnectionType::QueuedConnection);
+    connect(m_current_update_task.get(), &Task::failed, this, &ResourceFolderModel::onUpdateFailed, Qt::ConnectionType::QueuedConnection);
+
+    auto* thread_pool = QThreadPool::globalInstance();
+    thread_pool->start(m_current_update_task.get());
+
+    return true;
+}
+
+void ResourceFolderModel::resolveResource(Resource::Ptr res)
+{
+    if (!res->shouldResolve()) {
+        return;
+    }
+
+    auto task = createParseTask(*res);
+    if (!task)
+        return;
+
+    m_ticket_mutex.lock();
+    int ticket = m_next_resolution_ticket;
+    m_next_resolution_ticket += 1;
+    m_ticket_mutex.unlock();
+
+    res->setResolving(true, ticket);
+    m_active_parse_tasks.insert(ticket, task);
+
+    connect(
+        task, &Task::succeeded, this, [=] { onParseSucceeded(ticket, res->internal_id()); }, Qt::ConnectionType::QueuedConnection);
+    connect(
+        task, &Task::failed, this, [=] { onParseFailed(ticket, res->internal_id()); }, Qt::ConnectionType::QueuedConnection);
+    connect(
+        task, &Task::finished, this, [=] { m_active_parse_tasks.remove(ticket); }, Qt::ConnectionType::QueuedConnection);
+
+    auto* thread_pool = QThreadPool::globalInstance();
+    thread_pool->start(task);
+}
+
+void ResourceFolderModel::onUpdateSucceeded()
+{
+    auto update_results = static_cast<BasicFolderLoadTask*>(m_current_update_task.get())->result();
+
+    auto& new_resources = update_results->resources;
+
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+    auto current_list = m_resources_index.keys();
+    QSet<QString> current_set(current_list.begin(), current_list.end());
+
+    auto new_list = new_resources.keys();
+    QSet<QString> new_set(new_list.begin(), new_list.end());
+#else
+    QSet<QString> current_set(m_resources_index.keys().toSet());
+    QSet<QString> new_set(new_resources.keys().toSet());
+#endif
+
+    applyUpdates(current_set, new_set, new_resources);
+
+    m_current_update_task.reset();
+
+    if (m_scheduled_update) {
+        m_scheduled_update = false;
+        update();
+    } else {
+        emit updateFinished();
+    }
+}
+
+void ResourceFolderModel::onParseSucceeded(int ticket, QString resource_id)
+{
+    auto iter = m_active_parse_tasks.constFind(ticket);
+    if (iter == m_active_parse_tasks.constEnd())
+        return;
+
+    int row = m_resources_index[resource_id];
+    emit dataChanged(index(row), index(row, columnCount(QModelIndex()) - 1));
+}
+
+Task* ResourceFolderModel::createUpdateTask()
+{
+    return new BasicFolderLoadTask(m_dir);
+}
+
+bool ResourceFolderModel::hasPendingParseTasks() const
+{
+    return !m_active_parse_tasks.isEmpty();
+}
+
+void ResourceFolderModel::directoryChanged(QString path)
+{
+    update();
+}
+
+Qt::DropActions ResourceFolderModel::supportedDropActions() const
+{
+    // copy from outside, move from within and other resource lists
+    return Qt::CopyAction | Qt::MoveAction;
+}
+
+Qt::ItemFlags ResourceFolderModel::flags(const QModelIndex& index) const
+{
+    Qt::ItemFlags defaultFlags = QAbstractListModel::flags(index);
+    auto flags = defaultFlags;
+    if (!m_can_interact) {
+        flags &= ~Qt::ItemIsDropEnabled;
+    } else {
+        flags |= Qt::ItemIsDropEnabled;
+        if (index.isValid()) {
+            flags |= Qt::ItemIsUserCheckable;
+        }
+    }
+    return flags;
+}
+
+QStringList ResourceFolderModel::mimeTypes() const
+{
+    QStringList types;
+    types << "text/uri-list";
+    return types;
+}
+
+bool ResourceFolderModel::dropMimeData(const QMimeData* data, Qt::DropAction action, int, int, const QModelIndex&)
+{
+    if (action == Qt::IgnoreAction) {
+        return true;
+    }
+
+    // check if the action is supported
+    if (!data || !(action & supportedDropActions())) {
+        return false;
+    }
+
+    // files dropped from outside?
+    if (data->hasUrls()) {
+        auto urls = data->urls();
+        for (auto url : urls) {
+            // only local files may be dropped...
+            if (!url.isLocalFile()) {
+                continue;
+            }
+            // TODO: implement not only copy, but also move
+            // FIXME: handle errors here
+            installResource(url.toLocalFile());
+        }
+        return true;
+    }
+    return false;
+}
+
+bool ResourceFolderModel::validateIndex(const QModelIndex& index) const
+{
+    if (!index.isValid())
+        return false;
+
+    int row = index.row();
+    if (row < 0 || row >= m_resources.size())
+        return false;
+
+    return true;
+}
+
+QVariant ResourceFolderModel::data(const QModelIndex& index, int role) const
+{
+    if (!validateIndex(index))
+        return {};
+
+    int row = index.row();
+    int column = index.column();
+
+    switch (role) {
+        case Qt::DisplayRole:
+            switch (column) {
+                case NAME_COLUMN:
+                    return m_resources[row]->name();
+                case DATE_COLUMN:
+                    return m_resources[row]->dateTimeChanged();
+                default:
+                    return {};
+            }
+        case Qt::ToolTipRole:
+            return m_resources[row]->internal_id();
+        case Qt::CheckStateRole:
+            switch (column) {
+                case ACTIVE_COLUMN:
+                    return m_resources[row]->enabled() ? Qt::Checked : Qt::Unchecked;
+                default:
+                    return {};
+            }
+        default:
+            return {};
+    }
+}
+
+bool ResourceFolderModel::setData(const QModelIndex& index, const QVariant& value, int role)
+{
+    int row = index.row();
+    if (row < 0 || row >= rowCount(index) || !index.isValid())
+        return false;
+
+    if (role == Qt::CheckStateRole)
+        return setResourceEnabled({ index }, EnableAction::TOGGLE);
+
+    return false;
+}
+
+QVariant ResourceFolderModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    switch (role) {
+        case Qt::DisplayRole:
+            switch (section) {
+                case NAME_COLUMN:
+                    return tr("Name");
+                case DATE_COLUMN:
+                    return tr("Last modified");
+                default:
+                    return {};
+            }
+        case Qt::ToolTipRole: {
+            switch (section) {
+                case ACTIVE_COLUMN:
+                    //: Here, resource is a generic term for external resources, like Mods, Resource Packs, Shader Packs, etc.
+                    return tr("Is the resource enabled?");
+                case NAME_COLUMN:
+                    //: Here, resource is a generic term for external resources, like Mods, Resource Packs, Shader Packs, etc.
+                    return tr("The name of the resource.");
+                case DATE_COLUMN:
+                    //: Here, resource is a generic term for external resources, like Mods, Resource Packs, Shader Packs, etc.
+                    return tr("The date and time this resource was last changed (or added).");
+                default:
+                    return {};
+            }
+        }
+        default:
+            break;
+    }
+
+    return {};
+}
+
+QSortFilterProxyModel* ResourceFolderModel::createFilterProxyModel(QObject* parent)
+{
+    return new ProxyModel(parent);
+}
+
+SortType ResourceFolderModel::columnToSortKey(size_t column) const
+{
+    Q_ASSERT(m_column_sort_keys.size() == columnCount());
+    return m_column_sort_keys.at(column);
+}
+
+void ResourceFolderModel::enableInteraction(bool enabled)
+{
+    if (m_can_interact == enabled)
+        return;
+
+    m_can_interact = enabled;
+    if (size())
+        emit dataChanged(index(0), index(size() - 1));
+}
+
+/* Standard Proxy Model for createFilterProxyModel */
+[[nodiscard]] bool ResourceFolderModel::ProxyModel::filterAcceptsRow(int source_row, const QModelIndex& source_parent) const
+{
+    auto* model = qobject_cast<ResourceFolderModel*>(sourceModel());
+    if (!model)
+        return true;
+
+    const auto& resource = model->at(source_row);
+
+    return resource.applyFilter(filterRegularExpression());
+}
+
+[[nodiscard]] bool ResourceFolderModel::ProxyModel::lessThan(const QModelIndex& source_left, const QModelIndex& source_right) const
+{
+    auto* model = qobject_cast<ResourceFolderModel*>(sourceModel());
+    if (!model || !source_left.isValid() || !source_right.isValid() || source_left.column() != source_right.column()) {
+        return QSortFilterProxyModel::lessThan(source_left, source_right);
+    }
+
+    // we are now guaranteed to have two valid indexes in the same column... we love the provided invariants unconditionally and
+    // proceed.
+
+    auto column_sort_key = model->columnToSortKey(source_left.column());
+    auto const& resource_left = model->at(source_left.row());
+    auto const& resource_right = model->at(source_right.row());
+
+    auto compare_result = resource_left.compare(resource_right, column_sort_key);
+    if (compare_result.first == 0)
+        return QSortFilterProxyModel::lessThan(source_left, source_right);
+
+    if (compare_result.second || sortOrder() != Qt::DescendingOrder)
+        return (compare_result.first < 0);
+    return (compare_result.first > 0);
+}

launcher/minecraft/mod/ResourceFolderModel.h

@@ -0,0 +1,326 @@
+#pragma once
+
+#include <QAbstractListModel>
+#include <QDir>
+#include <QFileSystemWatcher>
+#include <QMutex>
+#include <QSet>
+#include <QSortFilterProxyModel>
+
+#include "Resource.h"
+
+#include "tasks/Task.h"
+
+class QSortFilterProxyModel;
+
+/** A basic model for external resources.
+ *
+ *  This model manages a list of resources. As such, external users of such resources do not own them,
+ *  and the resource's lifetime is contingent on the model's lifetime.
+ *
+ *  TODO: Make the resources unique pointers accessible through weak pointers.
+ */
+class ResourceFolderModel : public QAbstractListModel {
+    Q_OBJECT
+   public:
+    ResourceFolderModel(QDir, QObject* parent = nullptr);
+
+    /** Starts watching the paths for changes.
+     *
+     *  Returns whether starting to watch all the paths was successful.
+     *  If one or more fails, it returns false.
+     */
+    bool startWatching(const QStringList paths);
+
+    /** Stops watching the paths for changes.
+     *
+     *  Returns whether stopping to watch all the paths was successful.
+     *  If one or more fails, it returns false.
+     */
+    bool stopWatching(const QStringList paths);
+
+    /* Helper methods for subclasses, using a predetermined list of paths. */
+    virtual bool startWatching() { return startWatching({ m_dir.absolutePath() }); };
+    virtual bool stopWatching() { return stopWatching({ m_dir.absolutePath() }); };
+
+    /** Given a path in the system, install that resource, moving it to its place in the
+     *  instance file hierarchy.
+     *
+     *  Returns whether the installation was succcessful.
+     */
+    virtual bool installResource(QString path);
+
+    /** Uninstall (i.e. remove all data about it) a resource, given its file name.
+     *
+     *  Returns whether the removal was successful.
+     */
+    virtual bool uninstallResource(QString file_name);
+    virtual bool deleteResources(const QModelIndexList&);
+
+    /** Applies the given 'action' to the resources in 'indexes'.
+     *
+     *  Returns whether the action was successfully applied to all resources.
+     */
+    virtual bool setResourceEnabled(const QModelIndexList& indexes, EnableAction action);
+
+    /** Creates a new update task and start it. Returns false if no update was done, like when an update is already underway. */
+    virtual bool update();
+
+    /** Creates a new parse task, if needed, for 'res' and start it.*/
+    virtual void resolveResource(Resource::Ptr res);
+
+    [[nodiscard]] size_t size() const { return m_resources.size(); };
+    [[nodiscard]] bool empty() const { return size() == 0; }
+    [[nodiscard]] Resource& at(int index) { return *m_resources.at(index); }
+    [[nodiscard]] Resource const& at(int index) const { return *m_resources.at(index); }
+    [[nodiscard]] QList<Resource::Ptr> const& all() const { return m_resources; }
+
+    [[nodiscard]] QDir const& dir() const { return m_dir; }
+
+    /** Checks whether there's any parse tasks being done.
+     *
+     *  Since they can be quite expensive, and are usually done in a separate thread, if we were to destroy the model while having
+     *  such tasks would introduce an undefined behavior, most likely resulting in a crash.
+     */
+    [[nodiscard]] bool hasPendingParseTasks() const;
+
+    /* Qt behavior */
+
+    /* Basic columns */
+    enum Columns { ACTIVE_COLUMN = 0, NAME_COLUMN, DATE_COLUMN, NUM_COLUMNS };
+
+    [[nodiscard]] int rowCount(const QModelIndex& = {}) const override { return size(); }
+    [[nodiscard]] int columnCount(const QModelIndex& = {}) const override { return NUM_COLUMNS; };
+
+    [[nodiscard]] Qt::DropActions supportedDropActions() const override;
+
+    /// flags, mostly to support drag&drop
+    [[nodiscard]] Qt::ItemFlags flags(const QModelIndex& index) const override;
+    [[nodiscard]] QStringList mimeTypes() const override;
+    bool dropMimeData(const QMimeData* data, Qt::DropAction action, int row, int column, const QModelIndex& parent) override;
+
+    [[nodiscard]] bool validateIndex(const QModelIndex& index) const;
+
+    [[nodiscard]] QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
+    bool setData(const QModelIndex& index, const QVariant& value, int role = Qt::EditRole) override;
+
+    [[nodiscard]] QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
+
+    /** This creates a proxy model to filter / sort the model for a UI.
+     *
+     *  The actual comparisons and filtering are done directly by the Resource, so to modify behavior go there instead!
+     */
+    QSortFilterProxyModel* createFilterProxyModel(QObject* parent = nullptr);
+
+    [[nodiscard]] SortType columnToSortKey(size_t column) const;
+
+    class ProxyModel : public QSortFilterProxyModel {
+       public:
+        explicit ProxyModel(QObject* parent = nullptr) : QSortFilterProxyModel(parent) {}
+
+       protected:
+        [[nodiscard]] bool filterAcceptsRow(int source_row, const QModelIndex& source_parent) const override;
+        [[nodiscard]] bool lessThan(const QModelIndex& source_left, const QModelIndex& source_right) const override;
+    };
+
+   public slots:
+    void enableInteraction(bool enabled);
+    void disableInteraction(bool disabled) { enableInteraction(!disabled); }
+
+   signals:
+    void updateFinished();
+
+   protected:
+    /** This creates a new update task to be executed by update().
+     *
+     *  The task should load and parse all resources necessary, and provide a way of accessing such results.
+     *
+     *  This Task is normally executed when opening a page, so it shouldn't contain much heavy work.
+     *  If such work is needed, try using it in the Task create by createParseTask() instead!
+     */
+    [[nodiscard]] virtual Task* createUpdateTask();
+
+    /** This creates a new parse task to be executed by onUpdateSucceeded().
+     *
+     *  This task should load and parse all heavy info needed by a resource, such as parsing a manifest. It gets executed
+     *  in the background, so it slowly updates the UI as tasks get done.
+     */
+    [[nodiscard]] virtual Task* createParseTask(Resource const&) { return nullptr; };
+
+    /** Standard implementation of the model update logic.
+     *
+     *  It uses set operations to find differences between the current state and the updated state,
+     *  to act only on those disparities.
+     *
+     *  The implementation is at the end of this header.
+     */
+    template <typename T>
+    void applyUpdates(QSet<QString>& current_set, QSet<QString>& new_set, QMap<QString, T>& new_resources);
+
+   protected slots:
+    void directoryChanged(QString);
+
+    /** Called when the update task is successful.
+     *
+     *  This usually calls static_cast on the specific Task type returned by createUpdateTask,
+     *  so care must be taken in such cases.
+     *  TODO: Figure out a way to express this relationship better without templated classes (Q_OBJECT macro disallows that).
+     */
+    virtual void onUpdateSucceeded();
+    virtual void onUpdateFailed() {}
+
+    /** Called when the parse task with the given ticket is successful.
+     *
+     *  This is just a simple reference implementation. You probably want to override it with your own logic in a subclass
+     *  if the resource is complex and has more stuff to parse.
+     */
+    virtual void onParseSucceeded(int ticket, QString resource_id);
+    virtual void onParseFailed(int ticket, QString resource_id) {}
+
+   protected:
+    // Represents the relationship between a column's index (represented by the list index), and it's sorting key.
+    // As such, the order in with they appear is very important!
+    QList<SortType> m_column_sort_keys = { SortType::ENABLED, SortType::NAME, SortType::DATE };
+
+    bool m_can_interact = true;
+
+    QDir m_dir;
+    QFileSystemWatcher m_watcher;
+    bool m_is_watching = false;
+
+    Task::Ptr m_current_update_task = nullptr;
+    bool m_scheduled_update = false;
+
+    QList<Resource::Ptr> m_resources;
+
+    // Represents the relationship between a resource's internal ID and it's row position on the model.
+    QMap<QString, int> m_resources_index;
+
+    QMap<int, Task::Ptr> m_active_parse_tasks;
+    int m_next_resolution_ticket = 0;
+    QMutex m_ticket_mutex;
+};
+
+/* A macro to define useful functions to handle Resource* -> T* more easily on derived classes */
+#define RESOURCE_HELPERS(T)                                                                       \
+    [[nodiscard]] T* operator[](size_t index)                                                     \
+    {                                                                                             \
+        return static_cast<T*>(m_resources[index].get());                                         \
+    }                                                                                             \
+    [[nodiscard]] T* at(size_t index)                                                             \
+    {                                                                                             \
+        return static_cast<T*>(m_resources[index].get());                                         \
+    }                                                                                             \
+    [[nodiscard]] const T* at(size_t index) const                                                 \
+    {                                                                                             \
+        return static_cast<const T*>(m_resources.at(index).get());                                \
+    }                                                                                             \
+    [[nodiscard]] T* first()                                                                      \
+    {                                                                                             \
+        return static_cast<T*>(m_resources.first().get());                                        \
+    }                                                                                             \
+    [[nodiscard]] T* last()                                                                       \
+    {                                                                                             \
+        return static_cast<T*>(m_resources.last().get());                                         \
+    }                                                                                             \
+    [[nodiscard]] T* find(QString id)                                                             \
+    {                                                                                             \
+        auto iter = std::find_if(m_resources.constBegin(), m_resources.constEnd(),                \
+                                 [&](Resource::Ptr const& r) { return r->internal_id() == id; }); \
+        if (iter == m_resources.constEnd())                                                       \
+            return nullptr;                                                                       \
+        return static_cast<T*>((*iter).get());                                                    \
+    }
+
+/* Template definition to avoid some code duplication */
+template <typename T>
+void ResourceFolderModel::applyUpdates(QSet<QString>& current_set, QSet<QString>& new_set, QMap<QString, T>& new_resources)
+{
+    // see if the kept resources changed in some way
+    {
+        QSet<QString> kept_set = current_set;
+        kept_set.intersect(new_set);
+
+        for (auto const& kept : kept_set) {
+            auto row_it = m_resources_index.constFind(kept);
+            Q_ASSERT(row_it != m_resources_index.constEnd());
+            auto row = row_it.value();
+
+            auto& new_resource = new_resources[kept];
+            auto const& current_resource = m_resources[row];
+
+            if (new_resource->dateTimeChanged() == current_resource->dateTimeChanged()) {
+                // no significant change, ignore...
+                continue;
+            }
+
+            // If the resource is resolving, but something about it changed, we don't want to
+            // continue the resolving.
+            if (current_resource->isResolving()) {
+                auto task = (*m_active_parse_tasks.find(current_resource->resolutionTicket())).get();
+                task->abort();
+            }
+
+            m_resources[row].reset(new_resource);
+            resolveResource(m_resources.at(row));
+            emit dataChanged(index(row, 0), index(row, columnCount(QModelIndex()) - 1));
+        }
+    }
+
+    // remove resources no longer present
+    {
+        QSet<QString> removed_set = current_set;
+        removed_set.subtract(new_set);
+
+        QList<int> removed_rows;
+        for (auto& removed : removed_set)
+            removed_rows.append(m_resources_index[removed]);
+
+        std::sort(removed_rows.begin(), removed_rows.end(), std::greater<int>());
+
+        for (auto& removed_index : removed_rows) {
+            auto removed_it = m_resources.begin() + removed_index;
+
+            Q_ASSERT(removed_it != m_resources.end());
+            Q_ASSERT(removed_set.contains(removed_it->get()->internal_id()));
+
+            if ((*removed_it)->isResolving()) {
+                auto task = (*m_active_parse_tasks.find((*removed_it)->resolutionTicket())).get();
+                task->abort();
+            }
+
+            beginRemoveRows(QModelIndex(), removed_index, removed_index);
+            m_resources.erase(removed_it);
+            endRemoveRows();
+        }
+    }
+
+    // add new resources to the end
+    {
+        QSet<QString> added_set = new_set;
+        added_set.subtract(current_set);
+
+        // When you have a Qt build with assertions turned on, proceeding here will abort the application
+        if (added_set.size() > 0) {
+            beginInsertRows(QModelIndex(), m_resources.size(), m_resources.size() + added_set.size() - 1);
+
+            for (auto& added : added_set) {
+                auto res = new_resources[added];
+                m_resources.append(res);
+                resolveResource(res);
+            }
+
+            endInsertRows();
+        }
+    }
+
+    // update index
+    {
+        m_resources_index.clear();
+        int idx = 0;
+        for (auto const& mod : m_resources) {
+            m_resources_index[mod->internal_id()] = idx;
+            idx++;
+        }
+    }
+}

launcher/minecraft/mod/ResourceFolderModel_test.cpp

@@ -0,0 +1,275 @@
+// SPDX-License-Identifier: GPL-3.0-only
+/*
+*  PolyMC - Minecraft Launcher
+*  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
+*
+*  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, version 3.
+*
+*  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/>.
+*
+* This file incorporates work covered by the following copyright and
+* permission notice:
+*
+*      Copyright 2013-2021 MultiMC Contributors
+*
+*      Licensed under the Apache License, Version 2.0 (the "License");
+*      you may not use this file except in compliance with the License.
+*      You may obtain a copy of the License at
+*
+*          http://www.apache.org/licenses/LICENSE-2.0
+*
+*      Unless required by applicable law or agreed to in writing, software
+*      distributed under the License is distributed on an "AS IS" BASIS,
+*      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*      See the License for the specific language governing permissions and
+*      limitations under the License.
+*/
+
+#include <QTest>
+#include <QTemporaryDir>
+#include <QTimer>
+
+#include "FileSystem.h"
+
+#include "minecraft/mod/ModFolderModel.h"
+#include "minecraft/mod/ResourceFolderModel.h"
+
+#define EXEC_UPDATE_TASK(EXEC, VERIFY)                                                  \
+    QEventLoop loop;                                                                    \
+                                                                                        \
+    connect(&model, &ResourceFolderModel::updateFinished, &loop, &QEventLoop::quit);    \
+                                                                                        \
+    QTimer expire_timer;                                                                \
+    expire_timer.callOnTimeout(&loop, &QEventLoop::quit);                               \
+    expire_timer.setSingleShot(true);                                                   \
+    expire_timer.start(4000);                                                           \
+                                                                                        \
+    VERIFY(EXEC);                                                                       \
+    loop.exec();                                                                        \
+                                                                                        \
+    QVERIFY2(expire_timer.isActive(), "Timer has expired. The update never finished."); \
+    expire_timer.stop();                                                                \
+                                                                                        \
+    disconnect(&model, nullptr, nullptr, nullptr);
+
+class ResourceFolderModelTest : public QObject
+{
+    Q_OBJECT
+
+private
+slots:
+    // test for GH-1178 - install a folder with files to a mod list
+    void test_1178()
+    {
+        // source
+        QString source = QFINDTESTDATA("testdata/test_folder");
+
+        // sanity check
+        QVERIFY(!source.endsWith('/'));
+
+        auto verify = [](QString path)
+        {
+            QDir target_dir(FS::PathCombine(path, "test_folder"));
+            QVERIFY(target_dir.entryList().contains("pack.mcmeta"));
+            QVERIFY(target_dir.entryList().contains("assets"));
+        };
+
+        // 1. test with no trailing /
+        {
+            QString folder = source;
+            QTemporaryDir tempDir;
+
+            QEventLoop loop;
+
+            ModFolderModel m(tempDir.path(), true);
+
+            connect(&m, &ModFolderModel::updateFinished, &loop, &QEventLoop::quit);
+
+            QTimer expire_timer;
+            expire_timer.callOnTimeout(&loop, &QEventLoop::quit);
+            expire_timer.setSingleShot(true);
+            expire_timer.start(4000);
+
+            m.installMod(folder);
+
+            loop.exec();
+
+            QVERIFY2(expire_timer.isActive(), "Timer has expired. The update never finished.");
+            expire_timer.stop();
+
+            verify(tempDir.path());
+        }
+
+        // 2. test with trailing /
+        {
+            QString folder = source + '/';
+            QTemporaryDir tempDir;
+            QEventLoop loop;
+            ModFolderModel m(tempDir.path(), true);
+
+            connect(&m, &ModFolderModel::updateFinished, &loop, &QEventLoop::quit);
+
+            QTimer expire_timer;
+            expire_timer.callOnTimeout(&loop, &QEventLoop::quit);
+            expire_timer.setSingleShot(true);
+            expire_timer.start(4000);
+
+            m.installMod(folder);
+
+            loop.exec();
+
+            QVERIFY2(expire_timer.isActive(), "Timer has expired. The update never finished.");
+            expire_timer.stop();
+
+            verify(tempDir.path());
+        }
+    }
+
+    void test_addFromWatch()
+    {
+        QString source = QFINDTESTDATA("testdata");
+
+        ModFolderModel model(source);
+
+        QCOMPARE(model.size(), 0);
+
+        EXEC_UPDATE_TASK(model.startWatching(), )
+
+        for (auto mod : model.allMods())
+            qDebug() << mod->name();
+
+        QCOMPARE(model.size(), 2);
+
+        model.stopWatching();
+
+        while (model.hasPendingParseTasks()) {
+            QTest::qSleep(20);
+            QCoreApplication::processEvents();
+        }
+    }
+
+    void test_removeResource()
+    {
+        QString folder_resource = QFINDTESTDATA("testdata/test_folder");
+        QString file_mod = QFINDTESTDATA("testdata/supercoolmod.jar");
+
+        QTemporaryDir tmp;
+
+        ResourceFolderModel model(QDir(tmp.path()));
+
+        QCOMPARE(model.size(), 0);
+
+        {
+            EXEC_UPDATE_TASK(model.installResource(file_mod), QVERIFY)
+        }
+
+        QCOMPARE(model.size(), 1);
+        qDebug() << "Added first mod.";
+
+        {
+            EXEC_UPDATE_TASK(model.startWatching(), )
+        }
+
+        QCOMPARE(model.size(), 1);
+        qDebug() << "Started watching the temp folder.";
+        
+        {
+            EXEC_UPDATE_TASK(model.installResource(folder_resource), QVERIFY)
+        }
+
+        QCOMPARE(model.size(), 2);
+        qDebug() << "Added second mod.";
+
+        {
+            EXEC_UPDATE_TASK(model.uninstallResource("supercoolmod.jar"), QVERIFY);
+        }
+
+        QCOMPARE(model.size(), 1);
+        qDebug() << "Removed first mod.";
+
+        QString mod_file_name {model.at(0).fileinfo().fileName()};
+        QVERIFY(!mod_file_name.isEmpty());
+
+        {
+            EXEC_UPDATE_TASK(model.uninstallResource(mod_file_name), QVERIFY);
+        }
+
+        QCOMPARE(model.size(), 0);
+        qDebug() << "Removed second mod.";
+
+        model.stopWatching();
+
+        while (model.hasPendingParseTasks()) {
+            QTest::qSleep(20);
+            QCoreApplication::processEvents();
+        }
+    }
+
+    void test_enable_disable()
+    {
+        QString folder_resource = QFINDTESTDATA("testdata/test_folder");
+        QString file_mod = QFINDTESTDATA("testdata/supercoolmod.jar");
+
+        QTemporaryDir tmp;
+        ResourceFolderModel model(tmp.path());
+
+        QCOMPARE(model.size(), 0);
+
+        {
+            EXEC_UPDATE_TASK(model.installResource(folder_resource), QVERIFY)
+        }
+        {
+            EXEC_UPDATE_TASK(model.installResource(file_mod), QVERIFY)
+        }
+
+        for (auto res : model.all())
+            qDebug() << res->name();
+
+        QCOMPARE(model.size(), 2);
+
+        auto& res_1 = model.at(0).type() != ResourceType::FOLDER ? model.at(0) : model.at(1);
+        auto& res_2 = model.at(0).type() == ResourceType::FOLDER ? model.at(0) : model.at(1);
+        auto id_1 = res_1.internal_id();
+        auto id_2 = res_2.internal_id();
+        bool initial_enabled_res_2 =  res_2.enabled();
+        bool initial_enabled_res_1 =  res_1.enabled();
+
+        QVERIFY(res_1.type() != ResourceType::FOLDER && res_1.type() != ResourceType::UNKNOWN);
+        qDebug() << "res_1 is of the correct type.";
+        QVERIFY(res_1.enabled());
+        qDebug() << "res_1 is initially enabled.";
+
+        QVERIFY(res_1.enable(EnableAction::TOGGLE));
+
+        QVERIFY(res_1.enabled() == !initial_enabled_res_1);
+        qDebug() << "res_1 got successfully toggled.";
+
+        QVERIFY(res_1.enable(EnableAction::TOGGLE));
+        qDebug() << "res_1 got successfully toggled again.";
+
+        QVERIFY(res_1.enabled() == initial_enabled_res_1);
+        QVERIFY(res_1.internal_id() == id_1);
+        qDebug() << "res_1 got back to its initial state.";
+
+        QVERIFY(!res_2.enable(initial_enabled_res_2 ? EnableAction::ENABLE : EnableAction::DISABLE));
+        QVERIFY(res_2.enabled() == initial_enabled_res_2);
+        QVERIFY(res_2.internal_id() == id_2);
+
+        while (model.hasPendingParseTasks()) {
+            QTest::qSleep(20);
+            QCoreApplication::processEvents();
+        }
+    }
+};
+
+QTEST_GUILESS_MAIN(ResourceFolderModelTest)
+
+#include "ResourceFolderModel_test.moc"

launcher/minecraft/mod/ResourcePack.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "Resource.h"
+
+class ResourcePack : public Resource {
+    Q_OBJECT
+    public:
+    using Ptr = shared_qobject_ptr<Resource>;
+
+    ResourcePack(QObject* parent = nullptr) : Resource(parent) {}
+    ResourcePack(QFileInfo file_info) : Resource(file_info) {}
+
+};

launcher/minecraft/mod/ResourcePackFolderModel.cpp

@@ -35,24 +35,4 @@
 
 #include "ResourcePackFolderModel.h"
 
-ResourcePackFolderModel::ResourcePackFolderModel(const QString &dir) : ModFolderModel(dir) {
+ResourcePackFolderModel::ResourcePackFolderModel(const QString &dir) : ResourceFolderModel(QDir(dir)) {}
-}
-
-QVariant ResourcePackFolderModel::headerData(int section, Qt::Orientation orientation, int role) const {
-    if (role == Qt::ToolTipRole) {
-        switch (section) {
-            case ActiveColumn:
-                return tr("Is the resource pack enabled?");
-            case NameColumn:
-                return tr("The name of the resource pack.");
-            case VersionColumn:
-                return tr("The version of the resource pack.");
-            case DateColumn:
-                return tr("The date and time this resource pack was last changed (or added).");
-            default:
-                return QVariant();
-        }
-    }
-
-    return ModFolderModel::headerData(section, orientation, role);
-}

launcher/minecraft/mod/ResourcePackFolderModel.h

@@ -1,13 +1,14 @@
 #pragma once
 
-#include "ModFolderModel.h"
+#include "ResourceFolderModel.h"
 
-class ResourcePackFolderModel : public ModFolderModel
+#include "ResourcePack.h"
+
+class ResourcePackFolderModel : public ResourceFolderModel
 {
     Q_OBJECT
-
 public:
     explicit ResourcePackFolderModel(const QString &dir);
 
-    QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
+    RESOURCE_HELPERS(ResourcePack)
 };

launcher/minecraft/mod/ShaderPackFolderModel.h

@@ -0,0 +1,10 @@
+#pragma once
+
+#include "ResourceFolderModel.h"
+
+class ShaderPackFolderModel : public ResourceFolderModel {
+    Q_OBJECT
+
+   public:
+    explicit ShaderPackFolderModel(const QString& dir) : ResourceFolderModel(QDir(dir)) {}
+};

launcher/minecraft/mod/TexturePackFolderModel.cpp

@@ -35,24 +35,4 @@
 
 #include "TexturePackFolderModel.h"
 
-TexturePackFolderModel::TexturePackFolderModel(const QString &dir) : ModFolderModel(dir) {
+TexturePackFolderModel::TexturePackFolderModel(const QString &dir) : ResourceFolderModel(QDir(dir)) {}
-}
-
-QVariant TexturePackFolderModel::headerData(int section, Qt::Orientation orientation, int role) const {
-    if (role == Qt::ToolTipRole) {
-        switch (section) {
-            case ActiveColumn:
-                return tr("Is the texture pack enabled?");
-            case NameColumn:
-                return tr("The name of the texture pack.");
-            case VersionColumn:
-                return tr("The version of the texture pack.");
-            case DateColumn:
-                return tr("The date and time this texture pack was last changed (or added).");
-            default:
-                return QVariant();
-        }
-    }
-
-    return ModFolderModel::headerData(section, orientation, role);
-}

launcher/minecraft/mod/TexturePackFolderModel.h

@@ -1,13 +1,11 @@
 #pragma once
 
-#include "ModFolderModel.h"
+#include "ResourceFolderModel.h"
 
-class TexturePackFolderModel : public ModFolderModel
+class TexturePackFolderModel : public ResourceFolderModel
 {
     Q_OBJECT
 
 public:
     explicit TexturePackFolderModel(const QString &dir);
-
-    QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
 };

launcher/minecraft/mod/tasks/BasicFolderLoadTask.h

@@ -0,0 +1,53 @@
+#pragma once
+
+#include <QDir>
+#include <QMap>
+#include <QObject>
+
+#include <memory>
+
+#include "minecraft/mod/Resource.h"
+
+#include "tasks/Task.h"
+
+/** Very simple task that just loads a folder's contents directly. 
+ */
+class BasicFolderLoadTask : public Task
+{
+    Q_OBJECT
+public:
+    struct Result {
+        QMap<QString, Resource::Ptr> resources;
+    };
+    using ResultPtr = std::shared_ptr<Result>;
+
+    [[nodiscard]] ResultPtr result() const {
+        return m_result;
+    }
+
+public:
+    BasicFolderLoadTask(QDir dir) : Task(nullptr, false), m_dir(dir), m_result(new Result) {}
+
+    [[nodiscard]] bool canAbort() const override { return true; }
+    bool abort() override { m_aborted = true; return true; }
+
+    void executeTask() override
+    {
+        m_dir.refresh();
+        for (auto entry : m_dir.entryInfoList()) {
+            auto resource = new Resource(entry);
+            m_result->resources.insert(resource->internal_id(), resource);
+        }
+
+        if (m_aborted)
+            emitAborted();
+        else
+            emitSucceeded();
+    }
+
+private:
+    QDir m_dir;
+    ResultPtr m_result;
+
+    bool m_aborted = false;
+};

launcher/minecraft/mod/tasks/LocalModParseTask.cpp

@@ -20,22 +20,22 @@ namespace {
 
 // OLD format:
 // https://github.com/MinecraftForge/FML/wiki/FML-mod-information-file/5bf6a2d05145ec79387acc0d45c958642fb049fc
-std::shared_ptr<ModDetails> ReadMCModInfo(QByteArray contents)
+ModDetails ReadMCModInfo(QByteArray contents)
 {
-    auto getInfoFromArray = [&](QJsonArray arr)->std::shared_ptr<ModDetails>
+    auto getInfoFromArray = [&](QJsonArray arr) -> ModDetails
     {
         if (!arr.at(0).isObject()) {
-            return nullptr;
+            return {};
         }
-        std::shared_ptr<ModDetails> details = std::make_shared<ModDetails>();
+        ModDetails details;
         auto firstObj = arr.at(0).toObject();
-        details->mod_id = firstObj.value("modid").toString();
+        details.mod_id = firstObj.value("modid").toString();
         auto name = firstObj.value("name").toString();
         // NOTE: ignore stupid example mods copies where the author didn't even bother to change the name
         if(name != "Example Mod") {
-            details->name = name;
+            details.name = name;
         }
-        details->version = firstObj.value("version").toString();
+        details.version = firstObj.value("version").toString();
         auto homeurl = firstObj.value("url").toString().trimmed();
         if(!homeurl.isEmpty())
         {
@@ -45,8 +45,8 @@ std::shared_ptr<ModDetails> ReadMCModInfo(QByteArray contents)
                 homeurl.prepend("http://");
             }
         }
-        details->homeurl = homeurl;
+        details.homeurl = homeurl;
-        details->description = firstObj.value("description").toString();
+        details.description = firstObj.value("description").toString();
         QJsonArray authors = firstObj.value("authorList").toArray();
         if (authors.size() == 0) {
             // FIXME: what is the format of this? is there any?
@@ -55,7 +55,7 @@ std::shared_ptr<ModDetails> ReadMCModInfo(QByteArray contents)
 
         for (auto author: authors)
         {
-            details->authors.append(author.toString());
+            details.authors.append(author.toString());
         }
         return details;
     };
@@ -83,7 +83,7 @@ std::shared_ptr<ModDetails> ReadMCModInfo(QByteArray contents)
         {
             qCritical() << "BAD stuff happened to mod json:";
             qCritical() << contents;
-            return nullptr;
+            return {};
         }
         auto arrVal = jsonDoc.object().value("modlist");
         if(arrVal.isUndefined()) {
@@ -94,13 +94,13 @@ std::shared_ptr<ModDetails> ReadMCModInfo(QByteArray contents)
             return getInfoFromArray(arrVal.toArray());
         }
     }
-    return nullptr;
+    return {};
 }
 
 // https://github.com/MinecraftForge/Documentation/blob/5ab4ba6cf9abc0ac4c0abd96ad187461aefd72af/docs/gettingstarted/structuring.md
-std::shared_ptr<ModDetails> ReadMCModTOML(QByteArray contents)
+ModDetails ReadMCModTOML(QByteArray contents)
 {
-    std::shared_ptr<ModDetails> details = std::make_shared<ModDetails>();
+    ModDetails details;
 
     char errbuf[200];
     // top-level table
@@ -108,7 +108,7 @@ std::shared_ptr<ModDetails> ReadMCModTOML(QByteArray contents)
 
     if(!tomlData)
     {
-        return nullptr;
+        return {};
     }
 
     // array defined by [[mods]]
@@ -116,7 +116,7 @@ std::shared_ptr<ModDetails> ReadMCModTOML(QByteArray contents)
     if(!tomlModsArr)
     {
         qWarning() << "Corrupted mods.toml? Couldn't find [[mods]] array!";
-        return nullptr;
+        return {};
     }
 
     // we only really care about the first element, since multiple mods in one file is not supported by us at the moment
@@ -124,33 +124,33 @@ std::shared_ptr<ModDetails> ReadMCModTOML(QByteArray contents)
     if(!tomlModsTable0)
     {
         qWarning() << "Corrupted mods.toml? [[mods]] didn't have an element at index 0!";
-        return nullptr;
+        return {};
     }
 
     // mandatory properties - always in [[mods]]
     toml_datum_t modIdDatum = toml_string_in(tomlModsTable0, "modId");
     if(modIdDatum.ok)
     {
-        details->mod_id = modIdDatum.u.s;
+        details.mod_id = modIdDatum.u.s;
         // library says this is required for strings
         free(modIdDatum.u.s);
     }
     toml_datum_t versionDatum = toml_string_in(tomlModsTable0, "version");
     if(versionDatum.ok)
     {
-        details->version = versionDatum.u.s;
+        details.version = versionDatum.u.s;
         free(versionDatum.u.s);
     }
     toml_datum_t displayNameDatum = toml_string_in(tomlModsTable0, "displayName");
     if(displayNameDatum.ok)
     {
-        details->name = displayNameDatum.u.s;
+        details.name = displayNameDatum.u.s;
         free(displayNameDatum.u.s);
     }
     toml_datum_t descriptionDatum = toml_string_in(tomlModsTable0, "description");
     if(descriptionDatum.ok)
     {
-        details->description = descriptionDatum.u.s;
+        details.description = descriptionDatum.u.s;
         free(descriptionDatum.u.s);
     }
 
@@ -173,7 +173,7 @@ std::shared_ptr<ModDetails> ReadMCModTOML(QByteArray contents)
     }
     if(!authors.isEmpty())
     {
-        details->authors.append(authors);
+        details.authors.append(authors);
     }
 
     toml_datum_t homeurlDatum = toml_string_in(tomlData, "displayURL");
@@ -200,7 +200,7 @@ std::shared_ptr<ModDetails> ReadMCModTOML(QByteArray contents)
             homeurl.prepend("http://");
         }
     }
-    details->homeurl = homeurl;
+    details.homeurl = homeurl;
 
     // this seems to be recursive, so it should free everything
     toml_free(tomlData);
@@ -209,20 +209,20 @@ std::shared_ptr<ModDetails> ReadMCModTOML(QByteArray contents)
 }
 
 // https://fabricmc.net/wiki/documentation:fabric_mod_json
-std::shared_ptr<ModDetails> ReadFabricModInfo(QByteArray contents)
+ModDetails ReadFabricModInfo(QByteArray contents)
 {
     QJsonParseError jsonError;
     QJsonDocument jsonDoc = QJsonDocument::fromJson(contents, &jsonError);
     auto object = jsonDoc.object();
     auto schemaVersion = object.contains("schemaVersion") ? object.value("schemaVersion").toInt(0) : 0;
 
-    std::shared_ptr<ModDetails> details = std::make_shared<ModDetails>();
+    ModDetails details;
 
-    details->mod_id = object.value("id").toString();
+    details.mod_id = object.value("id").toString();
-    details->version = object.value("version").toString();
+    details.version = object.value("version").toString();
 
-    details->name = object.contains("name") ? object.value("name").toString() : details->mod_id;
+    details.name = object.contains("name") ? object.value("name").toString() : details.mod_id;
-    details->description = object.value("description").toString();
+    details.description = object.value("description").toString();
 
     if (schemaVersion >= 1)
     {
@@ -230,10 +230,10 @@ std::shared_ptr<ModDetails> ReadFabricModInfo(QByteArray contents)
         for (auto author: authors)
         {
             if(author.isObject()) {
-                details->authors.append(author.toObject().value("name").toString());
+                details.authors.append(author.toObject().value("name").toString());
             }
             else {
-                details->authors.append(author.toString());
+                details.authors.append(author.toString());
             }
         }
 
@@ -243,7 +243,7 @@ std::shared_ptr<ModDetails> ReadFabricModInfo(QByteArray contents)
 
             if (contact.contains("homepage"))
             {
-                details->homeurl = contact.value("homepage").toString();
+                details.homeurl = contact.value("homepage").toString();
             }
         }
     }
@@ -251,50 +251,50 @@ std::shared_ptr<ModDetails> ReadFabricModInfo(QByteArray contents)
 }
 
 // https://github.com/QuiltMC/rfcs/blob/master/specification/0002-quilt.mod.json.md
-std::shared_ptr<ModDetails> ReadQuiltModInfo(QByteArray contents)
+ModDetails ReadQuiltModInfo(QByteArray contents)
 {
     QJsonParseError jsonError;
     QJsonDocument jsonDoc = QJsonDocument::fromJson(contents, &jsonError);
     auto object = Json::requireObject(jsonDoc, "quilt.mod.json");
     auto schemaVersion = Json::ensureInteger(object.value("schema_version"), 0, "Quilt schema_version");
 
-    std::shared_ptr<ModDetails> details = std::make_shared<ModDetails>();
+    ModDetails details;
 
     // https://github.com/QuiltMC/rfcs/blob/be6ba280d785395fefa90a43db48e5bfc1d15eb4/specification/0002-quilt.mod.json.md
     if (schemaVersion == 1)
     {
         auto modInfo = Json::requireObject(object.value("quilt_loader"), "Quilt mod info");
 
-        details->mod_id = Json::requireString(modInfo.value("id"), "Mod ID");
+        details.mod_id = Json::requireString(modInfo.value("id"), "Mod ID");
-        details->version = Json::requireString(modInfo.value("version"), "Mod version");
+        details.version = Json::requireString(modInfo.value("version"), "Mod version");
 
         auto modMetadata = Json::ensureObject(modInfo.value("metadata"));
 
-        details->name = Json::ensureString(modMetadata.value("name"), details->mod_id);
+        details.name = Json::ensureString(modMetadata.value("name"), details.mod_id);
-        details->description = Json::ensureString(modMetadata.value("description"));
+        details.description = Json::ensureString(modMetadata.value("description"));
 
         auto modContributors = Json::ensureObject(modMetadata.value("contributors"));
 
         // We don't really care about the role of a contributor here
-        details->authors += modContributors.keys();
+        details.authors += modContributors.keys();
 
         auto modContact = Json::ensureObject(modMetadata.value("contact"));
 
         if (modContact.contains("homepage"))
         {
-            details->homeurl = Json::requireString(modContact.value("homepage"));
+            details.homeurl = Json::requireString(modContact.value("homepage"));
         }
     }
     return details;
 }
 
-std::shared_ptr<ModDetails> ReadForgeInfo(QByteArray contents)
+ModDetails ReadForgeInfo(QByteArray contents)
 {
-    std::shared_ptr<ModDetails> details = std::make_shared<ModDetails>();
+    ModDetails details;
     // Read the data
-    details->name = "Minecraft Forge";
+    details.name = "Minecraft Forge";
-    details->mod_id = "Forge";
+    details.mod_id = "Forge";
-    details->homeurl = "http://www.minecraftforge.net/forum/";
+    details.homeurl = "http://www.minecraftforge.net/forum/";
     INIFile ini;
     if (!ini.loadFile(contents))
         return details;
@@ -304,47 +304,47 @@ std::shared_ptr<ModDetails> ReadForgeInfo(QByteArray contents)
     QString revision = ini.get("forge.revision.number", "0").toString();
     QString build = ini.get("forge.build.number", "0").toString();
 
-    details->version = major + "." + minor + "." + revision + "." + build;
+    details.version = major + "." + minor + "." + revision + "." + build;
     return details;
 }
 
-std::shared_ptr<ModDetails> ReadLiteModInfo(QByteArray contents)
+ModDetails ReadLiteModInfo(QByteArray contents)
 {
-    std::shared_ptr<ModDetails> details = std::make_shared<ModDetails>();
+    ModDetails details;
     QJsonParseError jsonError;
     QJsonDocument jsonDoc = QJsonDocument::fromJson(contents, &jsonError);
     auto object = jsonDoc.object();
     if (object.contains("name"))
     {
-        details->mod_id = details->name = object.value("name").toString();
+        details.mod_id = details.name = object.value("name").toString();
     }
     if (object.contains("version"))
     {
-        details->version = object.value("version").toString("");
+        details.version = object.value("version").toString("");
     }
     else
     {
-        details->version = object.value("revision").toString("");
+        details.version = object.value("revision").toString("");
     }
-    details->mcversion = object.value("mcversion").toString();
+    details.mcversion = object.value("mcversion").toString();
     auto author = object.value("author").toString();
     if(!author.isEmpty()) {
-        details->authors.append(author);
+        details.authors.append(author);
     }
-    details->description = object.value("description").toString();
+    details.description = object.value("description").toString();
-    details->homeurl = object.value("url").toString();
+    details.homeurl = object.value("url").toString();
     return details;
 }
 
 }
 
-LocalModParseTask::LocalModParseTask(int token, Mod::ModType type, const QFileInfo& modFile):
+LocalModParseTask::LocalModParseTask(int token, ResourceType type, const QFileInfo& modFile):
+    Task(nullptr, false),
     m_token(token),
     m_type(type),
     m_modFile(modFile),
     m_result(new Result())
-{
+{}
-}
 
 void LocalModParseTask::processAsZip()
 {
@@ -366,7 +366,7 @@ void LocalModParseTask::processAsZip()
         file.close();
 
         // to replace ${file.jarVersion} with the actual version, as needed
-        if (m_result->details && m_result->details->version == "${file.jarVersion}")
+        if (m_result->details.version == "${file.jarVersion}")
         {
             if (zip.setCurrentFile("META-INF/MANIFEST.MF"))
             {
@@ -395,7 +395,7 @@ void LocalModParseTask::processAsZip()
                     manifestVersion = "NONE";
                 }
 
-                m_result->details->version = manifestVersion;
+                m_result->details.version = manifestVersion;
 
                 file.close();
             }
@@ -497,21 +497,31 @@ void LocalModParseTask::processAsLitemod()
     zip.close();
 }
 
-void LocalModParseTask::run()
+bool LocalModParseTask::abort()
+{
+    m_aborted = true;
+    return true;
+}
+
+void LocalModParseTask::executeTask()
 {
     switch(m_type)
     {
-        case Mod::MOD_ZIPFILE:
+        case ResourceType::ZIPFILE:
             processAsZip();
             break;
-        case Mod::MOD_FOLDER:
+        case ResourceType::FOLDER:
             processAsFolder();
             break;
-        case Mod::MOD_LITEMOD:
+        case ResourceType::LITEMOD:
             processAsLitemod();
             break;
         default:
             break;
     }
-    emit finished(m_token);
+
+    if (m_aborted)
+        emitAborted();
+    else
+        emitSucceeded();
 }

launcher/minecraft/mod/tasks/LocalModParseTask.h

@@ -2,29 +2,31 @@
 
 #include <QDebug>
 #include <QObject>
-#include <QRunnable>
 
 #include "minecraft/mod/Mod.h"
 #include "minecraft/mod/ModDetails.h"
 
-class LocalModParseTask : public QObject, public QRunnable
+#include "tasks/Task.h"
+
+class LocalModParseTask : public Task
 {
     Q_OBJECT
 public:
     struct Result {
-        QString id;
+        ModDetails details;
-        std::shared_ptr<ModDetails> details;
     };
     using ResultPtr = std::shared_ptr<Result>;
     ResultPtr result() const {
         return m_result;
     }
 
-    LocalModParseTask(int token, Mod::ModType type, const QFileInfo & modFile);
+    [[nodiscard]] bool canAbort() const override { return true; }
-    void run();
+    bool abort() override;
 
-signals:
+    LocalModParseTask(int token, ResourceType type, const QFileInfo & modFile);
-    void finished(int token);
+    void executeTask() override;
+
+    [[nodiscard]] int token() const { return m_token; }
 
 private:
     void processAsZip();
@@ -33,7 +35,9 @@ private:
 
 private:
     int m_token;
-    Mod::ModType m_type;
+    ResourceType m_type;
     QFileInfo m_modFile;
     ResultPtr m_result;
+
+    bool m_aborted = false;
 };

launcher/minecraft/mod/tasks/ModFolderLoadTask.cpp

@@ -38,11 +38,11 @@
 
 #include "minecraft/mod/MetadataHandler.h"
 
-ModFolderLoadTask::ModFolderLoadTask(QDir& mods_dir, QDir& index_dir, bool is_indexed, bool clean_orphan)
+ModFolderLoadTask::ModFolderLoadTask(QDir mods_dir, QDir index_dir, bool is_indexed, bool clean_orphan, QObject* parent)
-    : m_mods_dir(mods_dir), m_index_dir(index_dir), m_is_indexed(is_indexed), m_clean_orphan(clean_orphan), m_result(new Result())
+    : Task(parent, false), m_mods_dir(mods_dir), m_index_dir(index_dir), m_is_indexed(is_indexed), m_clean_orphan(clean_orphan), m_result(new Result())
 {}
 
-void ModFolderLoadTask::run()
+void ModFolderLoadTask::executeTask()
 {
     if (m_is_indexed) {
         // Read metadata first
@@ -52,7 +52,7 @@ void ModFolderLoadTask::run()
     // Read JAR files that don't have metadata
     m_mods_dir.refresh();
     for (auto entry : m_mods_dir.entryInfoList()) {
-        Mod::Ptr mod(new Mod(entry));
+        Mod* mod(new Mod(entry));
 
         if (mod->enabled()) {
             if (m_result->mods.contains(mod->internal_id())) {
@@ -96,7 +96,7 @@ void ModFolderLoadTask::run()
         }
     }
 
-    emit succeeded();
+    emitSucceeded();
 }
 
 void ModFolderLoadTask::getFromMetadata()

launcher/minecraft/mod/tasks/ModFolderLoadTask.h

@@ -42,8 +42,9 @@
 #include <QRunnable>
 #include <memory>
 #include "minecraft/mod/Mod.h"
+#include "tasks/Task.h"
 
-class ModFolderLoadTask : public QObject, public QRunnable
+class ModFolderLoadTask : public Task
 {
     Q_OBJECT
 public:
@@ -56,16 +57,15 @@ public:
     }
 
 public:
-    ModFolderLoadTask(QDir& mods_dir, QDir& index_dir, bool is_indexed, bool clean_orphan = false);
+    ModFolderLoadTask(QDir mods_dir, QDir index_dir, bool is_indexed, bool clean_orphan = false, QObject* parent = nullptr);
-    void run();
+
-signals:
+    void executeTask() override;
-    void succeeded();
 
 private:
     void getFromMetadata();
 
 private:
-    QDir& m_mods_dir, m_index_dir;
+    QDir m_mods_dir, m_index_dir;
     bool m_is_indexed;
     bool m_clean_orphan;
     ResultPtr m_result;

launcher/minecraft/mod/testdata/supercoolmod.jar

@@ -0,0 +1 @@
+the best mod.

launcher/modplatform/EnsureMetadataTask.cpp

@@ -102,7 +102,7 @@ void EnsureMetadataTask::executeTask()
         }
 
         // Folders don't have metadata
-        if (mod->type() == Mod::MOD_FOLDER) {
+        if (mod->type() == ResourceType::FOLDER) {
             emitReady(mod);
         }
     }

launcher/tasks/Task.cpp

@@ -37,8 +37,9 @@
 
 #include <QDebug>
 
-Task::Task(QObject *parent) : QObject(parent)
+Task::Task(QObject *parent, bool show_debug) : QObject(parent), m_show_debug(show_debug)
 {
+    setAutoDelete(false);
 }
 
 void Task::setStatus(const QString &new_status)
@@ -63,26 +64,31 @@ void Task::start()
     {
         case State::Inactive:
         {
+            if (m_show_debug)
                 qDebug() << "Task" << describe() << "starting for the first time";
             break;
         }
         case State::AbortedByUser:
         {
+            if (m_show_debug)
                 qDebug() << "Task" << describe() << "restarting for after being aborted by user";
             break;
         }
         case State::Failed:
         {
+            if (m_show_debug)
                 qDebug() << "Task" << describe() << "restarting for after failing at first";
             break;
         }
         case State::Succeeded:
         {
+            if (m_show_debug)
                 qDebug() << "Task" << describe() << "restarting for after succeeding at first";
             break;
         }
         case State::Running:
         {
+            if (m_show_debug)
                 qWarning() << "The launcher tried to start task" << describe() << "while it was already running!";
             return;
         }
@@ -118,6 +124,7 @@ void Task::emitAborted()
     }
     m_state = State::AbortedByUser;
     m_failReason = "Aborted.";
+    if (m_show_debug)
         qDebug() << "Task" << describe() << "aborted.";
     emit aborted();
     emit finished();
@@ -132,6 +139,7 @@ void Task::emitSucceeded()
         return;
     }
     m_state = State::Succeeded;
+    if (m_show_debug)
         qDebug() << "Task" << describe() << "succeeded";
     emit succeeded();
     emit finished();

launcher/tasks/Task.h

@@ -35,9 +35,11 @@
 
 #pragma once
 
+#include <QRunnable>
+
 #include "QObjectPtr.h"
 
-class Task : public QObject {
+class Task : public QObject, public QRunnable {
     Q_OBJECT
    public:
     using Ptr = shared_qobject_ptr<Task>;
@@ -45,7 +47,7 @@ class Task : public QObject {
     enum class State { Inactive, Running, Succeeded, Failed, AbortedByUser };
 
    public:
-    explicit Task(QObject* parent = 0);
+    explicit Task(QObject* parent = 0, bool show_debug_log = true);
     virtual ~Task() = default;
 
     bool isRunning() const;
@@ -95,6 +97,9 @@ class Task : public QObject {
     void stepStatus(QString status);
 
    public slots:
+    // QRunnable's interface
+    void run() override { start(); }
+
     virtual void start();
     virtual bool abort() { if(canAbort()) emitAborted(); return canAbort(); };
 
@@ -117,4 +122,7 @@ class Task : public QObject {
     QString m_status;
     int m_progress = 0;
     int m_progressTotal = 100;
+
+    // TODO: Nuke in favor of QLoggingCategory
+    bool m_show_debug = true;
 };

launcher/ui/dialogs/ModUpdateDialog.cpp

@@ -36,7 +36,7 @@ static ModAPI::ModLoaderTypes mcLoaders(BaseInstance* inst)
 ModUpdateDialog::ModUpdateDialog(QWidget* parent,
                                  BaseInstance* instance,
                                  const std::shared_ptr<ModFolderModel> mods,
-                                 QList<Mod::Ptr>& search_for)
+                                 QList<Mod*>& search_for)
     : ReviewMessageBox(parent, tr("Confirm mods to update"), "")
     , m_parent(parent)
     , m_mod_model(mods)
@@ -226,9 +226,8 @@ auto ModUpdateDialog::ensureMetadata() -> bool
     };
 
     for (auto candidate : m_candidates) {
-        auto* candidate_ptr = candidate.get();
         if (candidate->status() != ModStatus::NoMetadata) {
-            onMetadataEnsured(candidate_ptr);
+            onMetadataEnsured(candidate);
             continue;
         }
 
@@ -236,7 +235,7 @@ auto ModUpdateDialog::ensureMetadata() -> bool
             continue;
 
         if (confirm_rest) {
-            addToTmp(candidate_ptr, provider_rest);
+            addToTmp(candidate, provider_rest);
             should_try_others.insert(candidate->internal_id(), try_others_rest);
             continue;
         }
@@ -261,7 +260,7 @@ auto ModUpdateDialog::ensureMetadata() -> bool
         should_try_others.insert(candidate->internal_id(), response.try_others);
 
         if (confirmed)
-            addToTmp(candidate_ptr, response.chosen);
+            addToTmp(candidate, response.chosen);
     }
 
     if (!modrinth_tmp.empty()) {

launcher/ui/dialogs/ModUpdateDialog.h

@@ -19,7 +19,7 @@ class ModUpdateDialog final : public ReviewMessageBox {
     explicit ModUpdateDialog(QWidget* parent,
                              BaseInstance* instance,
                              const std::shared_ptr<ModFolderModel> mod_model,
-                             QList<Mod::Ptr>& search_for);
+                             QList<Mod*>& search_for);
 
     void checkCandidates();
 
@@ -46,7 +46,7 @@ class ModUpdateDialog final : public ReviewMessageBox {
 
     const std::shared_ptr<ModFolderModel> m_mod_model;
 
-    QList<Mod::Ptr>& m_candidates;
+    QList<Mod*>& m_candidates;
     QList<Mod*> m_modrinth_to_update;
     QList<Mod*> m_flame_to_update;
 

launcher/ui/pages/instance/ExternalResourcesPage.cpp

@@ -3,100 +3,13 @@
 
 #include "DesktopServices.h"
 #include "Version.h"
-#include "minecraft/mod/ModFolderModel.h"
+#include "minecraft/mod/ResourceFolderModel.h"
 #include "ui/GuiUtil.h"
 
 #include <QKeyEvent>
 #include <QMenu>
 
-namespace {
+ExternalResourcesPage::ExternalResourcesPage(BaseInstance* instance, std::shared_ptr<ResourceFolderModel> model, QWidget* parent)
-// FIXME: wasteful
-void RemoveThePrefix(QString& string)
-{
-    QRegularExpression regex(QStringLiteral("^(?:the|teh) +"), QRegularExpression::CaseInsensitiveOption);
-    string.remove(regex);
-    string = string.trimmed();
-}
-}  // namespace
-
-class SortProxy : public QSortFilterProxyModel {
-   public:
-    explicit SortProxy(QObject* parent = nullptr) : QSortFilterProxyModel(parent) {}
-
-   protected:
-    bool filterAcceptsRow(int source_row, const QModelIndex& source_parent) const override
-    {
-        ModFolderModel* model = qobject_cast<ModFolderModel*>(sourceModel());
-        if (!model)
-            return false;
-        
-        const auto& mod = model->at(source_row);
-
-        if (filterRegularExpression().match(mod.name()).hasMatch())
-            return true;
-        if (filterRegularExpression().match(mod.description()).hasMatch())
-            return true;
-        
-        for (auto& author : mod.authors()) {
-            if (filterRegularExpression().match(author).hasMatch()) {
-                return true;
-            }
-        }
-
-        return false;
-    }
-
-    bool lessThan(const QModelIndex& source_left, const QModelIndex& source_right) const override
-    {
-        ModFolderModel* model = qobject_cast<ModFolderModel*>(sourceModel());
-        if (!model || !source_left.isValid() || !source_right.isValid() || source_left.column() != source_right.column()) {
-            return QSortFilterProxyModel::lessThan(source_left, source_right);
-        }
-
-        // we are now guaranteed to have two valid indexes in the same column... we love the provided invariants unconditionally and
-        // proceed.
-
-        auto column = (ModFolderModel::Columns) source_left.column();
-        bool invert = false;
-        switch (column) {
-            // GH-2550 - sort by enabled/disabled
-            case ModFolderModel::ActiveColumn: {
-                auto dataL = source_left.data(Qt::CheckStateRole).toBool();
-                auto dataR = source_right.data(Qt::CheckStateRole).toBool();
-                if (dataL != dataR)
-                    return dataL > dataR;
-                
-                // fallthrough
-                invert = sortOrder() == Qt::DescendingOrder;
-            }
-            // GH-2722 - sort mod names in a way that discards "The" prefixes
-            case ModFolderModel::NameColumn: {
-                auto dataL = model->data(model->index(source_left.row(), ModFolderModel::NameColumn)).toString();
-                RemoveThePrefix(dataL);
-                auto dataR = model->data(model->index(source_right.row(), ModFolderModel::NameColumn)).toString();
-                RemoveThePrefix(dataR);
-
-                auto less = dataL.compare(dataR, sortCaseSensitivity());
-                if (less != 0)
-                    return invert ? (less > 0) : (less < 0);
-                
-                // fallthrough
-                invert = sortOrder() == Qt::DescendingOrder;
-            }
-            // GH-2762 - sort versions by parsing them as versions
-            case ModFolderModel::VersionColumn: {
-                auto dataL = Version(model->data(model->index(source_left.row(), ModFolderModel::VersionColumn)).toString());
-                auto dataR = Version(model->data(model->index(source_right.row(), ModFolderModel::VersionColumn)).toString());
-                return invert ? (dataL > dataR) : (dataL < dataR);
-            }
-            default: {
-                return QSortFilterProxyModel::lessThan(source_left, source_right);
-            }
-        }
-    }
-};
-
-ExternalResourcesPage::ExternalResourcesPage(BaseInstance* instance, std::shared_ptr<ModFolderModel> model, QWidget* parent)
     : QMainWindow(parent), m_instance(instance), ui(new Ui::ExternalResourcesPage), m_model(model)
 {
     ui->setupUi(this);
@@ -105,7 +18,7 @@ ExternalResourcesPage::ExternalResourcesPage(BaseInstance* instance, std::shared
 
     ui->actionsToolbar->insertSpacer(ui->actionViewConfigs);
 
-    m_filterModel = new SortProxy(this);
+    m_filterModel = model->createFilterProxyModel(this);
     m_filterModel->setDynamicSortFilter(true);
     m_filterModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
     m_filterModel->setSortCaseSensitivity(Qt::CaseInsensitive);
@@ -137,19 +50,9 @@ ExternalResourcesPage::ExternalResourcesPage(BaseInstance* instance, std::shared
 
 ExternalResourcesPage::~ExternalResourcesPage()
 {
-    m_model->stopWatching();
     delete ui;
 }
 
-void ExternalResourcesPage::itemActivated(const QModelIndex&)
-{
-    if (!m_controlsEnabled)
-        return;
-    
-    auto selection = m_filterModel->mapSelectionToSource(ui->treeView->selectionModel()->selection());
-    m_model->setModStatus(selection.indexes(), ModFolderModel::Toggle);
-}
-
 QMenu* ExternalResourcesPage::createPopupMenu()
 {
     QMenu* filteredMenu = QMainWindow::createPopupMenu();
@@ -179,6 +82,15 @@ void ExternalResourcesPage::retranslate()
     ui->retranslateUi(this);
 }
 
+void ExternalResourcesPage::itemActivated(const QModelIndex&)
+{
+    if (!m_controlsEnabled)
+        return;
+
+    auto selection = m_filterModel->mapSelectionToSource(ui->treeView->selectionModel()->selection());
+    m_model->setResourceEnabled(selection.indexes(), EnableAction::TOGGLE);
+}
+
 void ExternalResourcesPage::filterTextChanged(const QString& newContents)
 {
     m_viewFilter = newContents;
@@ -241,7 +153,7 @@ void ExternalResourcesPage::addItem()
 
     if (!list.isEmpty()) {
         for (auto filename : list) {
-            m_model->installMod(filename);
+            m_model->installResource(filename);
         }
     }
 }
@@ -252,7 +164,7 @@ void ExternalResourcesPage::removeItem()
         return;
     
     auto selection = m_filterModel->mapSelectionToSource(ui->treeView->selectionModel()->selection());
-    m_model->deleteMods(selection.indexes());
+    m_model->deleteResources(selection.indexes());
 }
 
 void ExternalResourcesPage::enableItem()
@@ -261,7 +173,7 @@ void ExternalResourcesPage::enableItem()
         return;
 
     auto selection = m_filterModel->mapSelectionToSource(ui->treeView->selectionModel()->selection());
-    m_model->setModStatus(selection.indexes(), ModFolderModel::Enable);
+    m_model->setResourceEnabled(selection.indexes(), EnableAction::ENABLE);
 }
 
 void ExternalResourcesPage::disableItem()
@@ -270,7 +182,7 @@ void ExternalResourcesPage::disableItem()
         return;
 
     auto selection = m_filterModel->mapSelectionToSource(ui->treeView->selectionModel()->selection());
-    m_model->setModStatus(selection.indexes(), ModFolderModel::Disable);
+    m_model->setResourceEnabled(selection.indexes(), EnableAction::DISABLE);
 }
 
 void ExternalResourcesPage::viewConfigs()
@@ -283,15 +195,23 @@ void ExternalResourcesPage::viewFolder()
     DesktopServices::openDirectory(m_model->dir().absolutePath(), true);
 }
 
-void ExternalResourcesPage::current(const QModelIndex& current, const QModelIndex& previous)
+bool ExternalResourcesPage::current(const QModelIndex& current, const QModelIndex& previous)
 {
     if (!current.isValid()) {
         ui->frame->clear();
-        return;
+        return false;
     }
 
+    return onSelectionChanged(current, previous);
+}
+
+bool ExternalResourcesPage::onSelectionChanged(const QModelIndex& current, const QModelIndex& previous)
+{
     auto sourceCurrent = m_filterModel->mapToSource(current);
     int row = sourceCurrent.row();
-    Mod& m = m_model->operator[](row);
+    Resource const& resource = m_model->at(row);
-    ui->frame->updateWithMod(m);
+    ui->frame->updateWithResource(resource);
+
+    return true;
 }
+

launcher/ui/pages/instance/ExternalResourcesPage.h

@@ -7,7 +7,7 @@
 #include "minecraft/MinecraftInstance.h"
 #include "ui/pages/BasePage.h"
 
-class ModFolderModel;
+class ResourceFolderModel;
 
 namespace Ui {
 class ExternalResourcesPage;
@@ -19,8 +19,7 @@ class ExternalResourcesPage : public QMainWindow, public BasePage {
     Q_OBJECT
 
    public:
-    // FIXME: Switch to different model (or change the name of this one)
+    explicit ExternalResourcesPage(BaseInstance* instance, std::shared_ptr<ResourceFolderModel> model, QWidget* parent = nullptr);
-    explicit ExternalResourcesPage(BaseInstance* instance, std::shared_ptr<ModFolderModel> model, QWidget* parent = nullptr);
     virtual ~ExternalResourcesPage();
 
     virtual QString displayName() const override = 0;
@@ -41,7 +40,9 @@ class ExternalResourcesPage : public QMainWindow, public BasePage {
     QMenu* createPopupMenu() override;
 
    public slots:
-    void current(const QModelIndex& current, const QModelIndex& previous);
+    bool current(const QModelIndex& current, const QModelIndex& previous);
+
+    virtual bool onSelectionChanged(const QModelIndex& current, const QModelIndex& previous);
 
    protected slots:
     void itemActivated(const QModelIndex& index);
@@ -63,7 +64,7 @@ class ExternalResourcesPage : public QMainWindow, public BasePage {
     BaseInstance* m_instance = nullptr;
 
     Ui::ExternalResourcesPage* ui = nullptr;
-    std::shared_ptr<ModFolderModel> m_model;
+    std::shared_ptr<ResourceFolderModel> m_model;
     QSortFilterProxyModel* m_filterModel = nullptr;
 
     QString m_fileSelectionFilter;

launcher/ui/pages/instance/ExternalResourcesPage.ui

@@ -43,7 +43,7 @@
      </layout>
     </item>
     <item row="2" column="1" colspan="3">
-     <widget class="MCModInfoFrame" name="frame">
+     <widget class="InfoFrame" name="frame">
       <property name="sizePolicy">
        <sizepolicy hsizetype="Preferred" vsizetype="Minimum">
         <horstretch>0</horstretch>
@@ -166,9 +166,9 @@
    <header>ui/widgets/ModListView.h</header>
   </customwidget>
   <customwidget>
-   <class>MCModInfoFrame</class>
+   <class>InfoFrame</class>
    <extends>QFrame</extends>
-   <header>ui/widgets/MCModInfoFrame.h</header>
+   <header>ui/widgets/InfoFrame.h</header>
    <container>1</container>
   </customwidget>
   <customwidget>

launcher/ui/pages/instance/ModFolderPage.cpp

@@ -65,7 +65,7 @@
 #include "ui/dialogs/ProgressDialog.h"
 
 ModFolderPage::ModFolderPage(BaseInstance* inst, std::shared_ptr<ModFolderModel> mods, QWidget* parent)
-    : ExternalResourcesPage(inst, mods, parent)
+    : ExternalResourcesPage(inst, mods, parent), m_model(mods)
 {
     // This is structured like that so that these changes
     // do not affect the Resource pack and Shader pack tabs
@@ -124,6 +124,17 @@ bool ModFolderPage::shouldDisplay() const
     return true;
 }
 
+bool ModFolderPage::onSelectionChanged(const QModelIndex& current, const QModelIndex& previous)
+{
+    auto sourceCurrent = m_filterModel->mapToSource(current);
+    int row = sourceCurrent.row();
+    Mod const* m = m_model->at(row);
+    if (m)
+        ui->frame->updateWithMod(*m);
+
+    return true;
+}
+
 void ModFolderPage::installMods()
 {
     if (!m_controlsEnabled)

launcher/ui/pages/instance/ModFolderPage.h

@@ -55,9 +55,15 @@ class ModFolderPage : public ExternalResourcesPage {
     virtual bool shouldDisplay() const override;
     void runningStateChanged(bool running) override;
 
+   public slots:
+    bool onSelectionChanged(const QModelIndex& current, const QModelIndex& previous) override;
+
    private slots:
     void installMods();
     void updateMods();
+
+   protected:
+    std::shared_ptr<ModFolderModel> m_model;
 };
 
 class CoreModFolderPage : public ModFolderPage {

launcher/ui/pages/instance/ResourcePackPage.h

@@ -38,12 +38,14 @@
 #include "ExternalResourcesPage.h"
 #include "ui_ExternalResourcesPage.h"
 
+#include "minecraft/mod/ResourcePackFolderModel.h"
+
 class ResourcePackPage : public ExternalResourcesPage
 {
     Q_OBJECT
 public:
-    explicit ResourcePackPage(MinecraftInstance *instance, QWidget *parent = 0)
+    explicit ResourcePackPage(MinecraftInstance *instance, std::shared_ptr<ResourcePackFolderModel> model, QWidget *parent = 0)
-        : ExternalResourcesPage(instance, instance->resourcePackList(), parent)
+        : ExternalResourcesPage(instance, model, parent)
     {
         ui->actionViewConfigs->setVisible(false);
     }

launcher/ui/pages/instance/ShaderPackPage.h

@@ -38,12 +38,14 @@
 #include "ExternalResourcesPage.h"
 #include "ui_ExternalResourcesPage.h"
 
+#include "minecraft/mod/ShaderPackFolderModel.h"
+
 class ShaderPackPage : public ExternalResourcesPage
 {
     Q_OBJECT
 public:
-    explicit ShaderPackPage(MinecraftInstance *instance, QWidget *parent = 0)
+    explicit ShaderPackPage(MinecraftInstance *instance, std::shared_ptr<ShaderPackFolderModel> model, QWidget *parent = 0)
-        : ExternalResourcesPage(instance, instance->shaderPackList(), parent)
+        : ExternalResourcesPage(instance, model, parent)
     {
         ui->actionViewConfigs->setVisible(false);
     }

launcher/ui/pages/instance/TexturePackPage.h

@@ -38,12 +38,14 @@
 #include "ExternalResourcesPage.h"
 #include "ui_ExternalResourcesPage.h"
 
+#include "minecraft/mod/TexturePackFolderModel.h"
+
 class TexturePackPage : public ExternalResourcesPage
 {
     Q_OBJECT
 public:
-    explicit TexturePackPage(MinecraftInstance *instance, QWidget *parent = 0)
+    explicit TexturePackPage(MinecraftInstance *instance, std::shared_ptr<TexturePackFolderModel> model, QWidget *parent = 0)
-        : ExternalResourcesPage(instance, instance->texturePackList(), parent)
+        : ExternalResourcesPage(instance, model, parent)
     {
         ui->actionViewConfigs->setVisible(false);
     }

launcher/ui/pages/instance/VersionPage.cpp

@@ -196,10 +196,10 @@ void VersionPage::packageCurrent(const QModelIndex &current, const QModelIndex &
     switch(severity)
     {
         case ProblemSeverity::Warning:
-            ui->frame->setModText(tr("%1 possibly has issues.").arg(patch->getName()));
+            ui->frame->setName(tr("%1 possibly has issues.").arg(patch->getName()));
             break;
         case ProblemSeverity::Error:
-            ui->frame->setModText(tr("%1 has issues!").arg(patch->getName()));
+            ui->frame->setName(tr("%1 has issues!").arg(patch->getName()));
             break;
         default:
         case ProblemSeverity::None:
@@ -222,7 +222,7 @@ void VersionPage::packageCurrent(const QModelIndex &current, const QModelIndex &
         problemOut += problem.m_description;
         problemOut += "\n";
     }
-    ui->frame->setModDescription(problemOut);
+    ui->frame->setDescription(problemOut);
 }
 
 void VersionPage::updateRunningStatus(bool running)

launcher/ui/pages/instance/VersionPage.ui

@@ -64,7 +64,7 @@
        </layout>
       </item>
       <item>
-       <widget class="MCModInfoFrame" name="frame">
+       <widget class="InfoFrame" name="frame">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Preferred" vsizetype="Minimum">
           <horstretch>0</horstretch>
@@ -278,9 +278,9 @@
    <header>ui/widgets/ModListView.h</header>
   </customwidget>
   <customwidget>
-   <class>MCModInfoFrame</class>
+   <class>InfoFrame</class>
    <extends>QFrame</extends>
-   <header>ui/widgets/MCModInfoFrame.h</header>
+   <header>ui/widgets/InfoFrame.h</header>
    <container>1</container>
   </customwidget>
   <customwidget>

launcher/ui/widgets/InfoFrame.cpp

@@ -14,16 +14,30 @@
  */
 
 #include <QMessageBox>
-#include <QtGui>
 
-#include "MCModInfoFrame.h"
+#include "InfoFrame.h"
-#include "ui_MCModInfoFrame.h"
+#include "ui_InfoFrame.h"
 
 #include "ui/dialogs/CustomMessageBox.h"
 
-void MCModInfoFrame::updateWithMod(Mod &m)
+InfoFrame::InfoFrame(QWidget *parent) :
+    QFrame(parent),
+    ui(new Ui::InfoFrame)
 {
-    if (m.type() == m.MOD_FOLDER)
+    ui->setupUi(this);
+    ui->descriptionLabel->setHidden(true);
+    ui->nameLabel->setHidden(true);
+    updateHiddenState();
+}
+
+InfoFrame::~InfoFrame()
+{
+    delete ui;
+}
+
+void InfoFrame::updateWithMod(Mod const& m)
+{
+    if (m.type() == ResourceType::FOLDER)
     {
         clear();
         return;
@@ -43,42 +57,32 @@ void MCModInfoFrame::updateWithMod(Mod &m)
     if (!m.authors().isEmpty())
         text += " by " + m.authors().join(", ");
 
-    setModText(text);
+    setName(text);
 
     if (m.description().isEmpty())
     {
-        setModDescription(QString());
+        setDescription(QString());
     }
     else
     {
-        setModDescription(m.description());
+        setDescription(m.description());
     }
 }
 
-void MCModInfoFrame::clear()
+void InfoFrame::updateWithResource(const Resource& resource)
 {
-    setModText(QString());
+    setName(resource.name());
-    setModDescription(QString());
 }
 
-MCModInfoFrame::MCModInfoFrame(QWidget *parent) :
+void InfoFrame::clear()
-    QFrame(parent),
-    ui(new Ui::MCModInfoFrame)
 {
-    ui->setupUi(this);
+    setName();
-    ui->label_ModDescription->setHidden(true);
+    setDescription();
-    ui->label_ModText->setHidden(true);
-    updateHiddenState();
 }
 
-MCModInfoFrame::~MCModInfoFrame()
+void InfoFrame::updateHiddenState()
 {
-    delete ui;
+    if(ui->descriptionLabel->isHidden() && ui->nameLabel->isHidden())
-}
-
-void MCModInfoFrame::updateHiddenState()
-{
-    if(ui->label_ModDescription->isHidden() && ui->label_ModText->isHidden())
     {
         setHidden(true);
     }
@@ -88,34 +92,34 @@ void MCModInfoFrame::updateHiddenState()
     }
 }
 
-void MCModInfoFrame::setModText(QString text)
+void InfoFrame::setName(QString text)
 {
     if(text.isEmpty())
     {
-        ui->label_ModText->setHidden(true);
+        ui->nameLabel->setHidden(true);
     }
     else
     {
-        ui->label_ModText->setText(text);
+        ui->nameLabel->setText(text);
-        ui->label_ModText->setHidden(false);
+        ui->nameLabel->setHidden(false);
     }
     updateHiddenState();
 }
 
-void MCModInfoFrame::setModDescription(QString text)
+void InfoFrame::setDescription(QString text)
 {
     if(text.isEmpty())
     {
-        ui->label_ModDescription->setHidden(true);
+        ui->descriptionLabel->setHidden(true);
         updateHiddenState();
         return;
     }
     else
     {
-        ui->label_ModDescription->setHidden(false);
+        ui->descriptionLabel->setHidden(false);
         updateHiddenState();
     }
-    ui->label_ModDescription->setToolTip("");
+    ui->descriptionLabel->setToolTip("");
     QString intermediatetext = text.trimmed();
     bool prev(false);
     QChar rem('\n');
@@ -133,36 +137,36 @@ void MCModInfoFrame::setModDescription(QString text)
     labeltext.reserve(300);
     if(finaltext.length() > 290)
     {
-        ui->label_ModDescription->setOpenExternalLinks(false);
+        ui->descriptionLabel->setOpenExternalLinks(false);
-        ui->label_ModDescription->setTextFormat(Qt::TextFormat::RichText);
+        ui->descriptionLabel->setTextFormat(Qt::TextFormat::RichText);
-        desc = text;
+        m_description = text;
         // This allows injecting HTML here.
         labeltext.append("<html><body>" + finaltext.left(287) + "<a href=\"#mod_desc\">...</a></body></html>");
-        QObject::connect(ui->label_ModDescription, &QLabel::linkActivated, this, &MCModInfoFrame::modDescEllipsisHandler);
+        QObject::connect(ui->descriptionLabel, &QLabel::linkActivated, this, &InfoFrame::descriptionEllipsisHandler);
     }
     else
     {
-        ui->label_ModDescription->setTextFormat(Qt::TextFormat::PlainText);
+        ui->descriptionLabel->setTextFormat(Qt::TextFormat::PlainText);
         labeltext.append(finaltext);
     }
-    ui->label_ModDescription->setText(labeltext);
+    ui->descriptionLabel->setText(labeltext);
 }
 
-void MCModInfoFrame::modDescEllipsisHandler(const QString &link)
+void InfoFrame::descriptionEllipsisHandler(QString link)
 {
-    if(!currentBox)
+    if(!m_current_box)
     {
-        currentBox = CustomMessageBox::selectable(this, QString(), desc);
+        m_current_box = CustomMessageBox::selectable(this, "", m_description);
-        connect(currentBox, &QMessageBox::finished, this, &MCModInfoFrame::boxClosed);
+        connect(m_current_box, &QMessageBox::finished, this, &InfoFrame::boxClosed);
-        currentBox->show();
+        m_current_box->show();
     }
     else
     {
-        currentBox->setText(desc);
+        m_current_box->setText(m_description);
     }
 }
 
-void MCModInfoFrame::boxClosed(int result)
+void InfoFrame::boxClosed(int result)
 {
-    currentBox = nullptr;
+    m_current_box = nullptr;
 }

launcher/ui/widgets/InfoFrame.h

@@ -16,37 +16,39 @@
 #pragma once
 
 #include <QFrame>
+
 #include "minecraft/mod/Mod.h"
+#include "minecraft/mod/ResourcePack.h"
 
 namespace Ui
 {
-class MCModInfoFrame;
+class InfoFrame;
 }
 
-class MCModInfoFrame : public QFrame
+class InfoFrame : public QFrame {
-{
     Q_OBJECT
 
-public:
+   public:
-    explicit MCModInfoFrame(QWidget *parent = 0);
+    InfoFrame(QWidget* parent = nullptr);
-    ~MCModInfoFrame();
+    ~InfoFrame() override;
 
-    void setModText(QString text);
+    void setName(QString text = {});
-    void setModDescription(QString text);
+    void setDescription(QString text = {});
 
-    void updateWithMod(Mod &m);
     void clear();
 
-public slots:
+    void updateWithMod(Mod const& m);
-    void modDescEllipsisHandler(const QString& link );
+    void updateWithResource(Resource const& resource);
+
+   public slots:
+    void descriptionEllipsisHandler(QString link);
     void boxClosed(int result);
 
-private:
+   private:
     void updateHiddenState();
 
-private:
+   private:
-    Ui::MCModInfoFrame *ui;
+    Ui::InfoFrame* ui;
-    QString desc;
+    QString m_description;
-    class QMessageBox * currentBox = nullptr;
+    class QMessageBox* m_current_box = nullptr;
 };
-

launcher/ui/widgets/InfoFrame.ui

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
- <class>MCModInfoFrame</class>
+ <class>InfoFrame</class>
- <widget class="QFrame" name="MCModInfoFrame">
+ <widget class="QFrame" name="InfoFrame">
   <property name="geometry">
    <rect>
     <x>0</x>
@@ -39,7 +39,7 @@
     <number>0</number>
    </property>
    <item>
-    <widget class="QLabel" name="label_ModText">
+    <widget class="QLabel" name="nameLabel">
      <property name="text">
       <string notr="true"/>
      </property>
@@ -61,7 +61,7 @@
     </widget>
    </item>
    <item>
-    <widget class="QLabel" name="label_ModDescription">
+    <widget class="QLabel" name="descriptionLabel">
      <property name="toolTip">
       <string notr="true"/>
      </property>