ui: add plugin favorites and visibility options

include/element/plugins.hpp

@@ -127,6 +127,55 @@ class PluginManager : public juce::ChangeBroadcaster {
     /** Get the first node factory by format. e.g. "LV2" */
     NodeProvider* getProvider (const juce::String& format) noexcept;
 
+    //==============================================================================
+    /** Returns true if the plugin is hidden from the "Add Plugin" surfaces.
+
+        Hidden state is user curation stored separately from the known plugins
+        list (keyed by juce::PluginDescription::createIdentifierString()) so it
+        survives plugin rescans.
+
+        @param desc the plugin to query
+        @return true if the plugin is currently hidden
+    */
+    bool isPluginHidden (const juce::PluginDescription& desc) const;
+
+    /** Shows or hides a plugin. Persists immediately and broadcasts a change.
+
+        @param desc   the plugin to update
+        @param hidden true to hide the plugin from "Add Plugin" surfaces
+    */
+    void setPluginHidden (const juce::PluginDescription& desc, bool hidden);
+
+    /** Returns true if the plugin is marked as a favorite.
+
+        @param desc the plugin to query
+        @return true if the plugin is a favorite
+    */
+    bool isPluginFavorite (const juce::PluginDescription& desc) const;
+
+    /** Marks or unmarks a plugin as a favorite. Persists immediately and
+        broadcasts a change.
+
+        @param desc     the plugin to update
+        @param favorite true to mark the plugin as a favorite
+    */
+    void setPluginFavorite (const juce::PluginDescription& desc, bool favorite);
+
+    /** Returns all known plugin types with hidden ones removed.
+
+        This is the shared filter that every "Add Plugin" surface should route
+        through. The result preserves the order of getKnownPlugins().getTypes().
+
+        @return the visible (non-hidden) plugin types
+    */
+    juce::Array<juce::PluginDescription> getVisiblePluginTypes() const;
+
+    /** Returns the visible plugin types that are marked as favorites.
+
+        @return the favorite plugin types (excludes hidden plugins)
+    */
+    juce::Array<juce::PluginDescription> getFavoritePluginTypes() const;
+
 private:
     friend class PluginScanner;
     juce::PropertiesFile* props = nullptr;

include/element/tags.hpp

@@ -27,6 +27,7 @@ EL_TAG (Script)
 EL_TAG (Session)
 
 EL_TAG (AudioChannelSet)
+EL_TAG (PluginMetadata)
 } // namespace types
 
 namespace tags {
@@ -152,6 +153,8 @@ static const juce::Identifier renderMode = "renderMode";
 static const juce::Identifier staticPos = "staticPos";
 
 static const juce::Identifier plugin = "plugin";
+static const juce::Identifier hidden = "hidden";
+static const juce::Identifier favorite = "favorite";
 
 static const juce::Identifier windowOnTop = "windowOnTop";
 static const juce::Identifier windowVisible = "windowVisible";

src/pluginmanager.cpp

@@ -36,6 +36,7 @@ static const char* pluginListKey() { return Settings::pluginListKey; }
 /* noop. prevent OS error dialogs from child process */
 static void pluginScannerCrashHandler (void*) {}
 static File pluginsXmlFile() { return DataPath::applicationDataDir().getChildFile ("plugins.xml"); }
+static File pluginMetadataXmlFile() { return DataPath::applicationDataDir().getChildFile ("plugin-metadata.xml"); }
 
 static FileSearchPath readSearchPath (const PropertiesFile& props, const String& f)
 {
@@ -638,6 +639,53 @@ class PluginManager::Private : public PluginScanner::Listener
         unverified.searchForPlugins (props);
     }
 
+    /** Load hidden/favorite curation from a metadata file (keyed by
+        PluginDescription::createIdentifierString()). */
+    void loadPluginMetadata (const File& file)
+    {
+        hiddenPlugins.clearQuick();
+        favoritePlugins.clearQuick();
+
+        auto xml = XmlDocument::parse (file);
+        if (xml == nullptr || ! xml->hasTagName (types::PluginMetadata.toString()))
+            return;
+
+        for (auto* const e : xml->getChildWithTagNameIterator (tags::plugin.toString()))
+        {
+            const auto id = e->getStringAttribute (tags::identifier.toString());
+            if (id.isEmpty())
+                continue;
+            if (e->getBoolAttribute (tags::hidden.toString()))
+                hiddenPlugins.addIfNotAlreadyThere (id);
+            if (e->getBoolAttribute (tags::favorite.toString()))
+                favoritePlugins.addIfNotAlreadyThere (id);
+        }
+    }
+
+    /** Persist hidden/favorite curation. Only non-default entries are written. */
+    void savePluginMetadata (const File& file)
+    {
+        XmlElement xml (types::PluginMetadata.toString());
+
+        StringArray ids;
+        ids.addArray (hiddenPlugins);
+        ids.addArray (favoritePlugins);
+        ids.removeDuplicates (false);
+
+        for (const auto& id : ids)
+        {
+            auto* const e = xml.createNewChildElement (tags::plugin.toString());
+            e->setAttribute (tags::identifier.toString(), id);
+            if (hiddenPlugins.contains (id))
+                e->setAttribute (tags::hidden.toString(), 1);
+            if (favoritePlugins.contains (id))
+                e->setAttribute (tags::favorite.toString(), 1);
+        }
+
+        file.getParentDirectory().createDirectory();
+        xml.writeTo (file);
+    }
+
     void getUnverifiedPlugins (const String& format, OwnedArray<PluginDescription>& plugs)
     {
         unverified.getPlugins (plugs, format, allPlugins);
@@ -648,6 +696,7 @@ class PluginManager::Private : public PluginScanner::Listener
     PluginManager& owner;
     AudioPluginFormatManager formats;
     KnownPluginList allPlugins;
+    StringArray hiddenPlugins, favoritePlugins;
     File deadAudioPlugins;
     UnverifiedPlugins unverified;
     NodeFactory nodes;
@@ -951,6 +1000,7 @@ void PluginManager::restoreUserPlugins (const XmlElement& xml)
     priv->allPlugins.recreateFromXml (xml);
     scanInternalPlugins();
     priv->updateBlacklistedAudioPlugins();
+    priv->loadPluginMetadata (detail::pluginMetadataXmlFile());
     if (props == nullptr)
         return;
 }
@@ -1119,4 +1169,58 @@ NodeProvider* PluginManager::getProvider (const String& format) noexcept
     return nullptr;
 }
 
+//==============================================================================
+bool PluginManager::isPluginHidden (const PluginDescription& desc) const
+{
+    return priv->hiddenPlugins.contains (desc.createIdentifierString());
+}
+
+void PluginManager::setPluginHidden (const PluginDescription& desc, bool hidden)
+{
+    const auto id = desc.createIdentifierString();
+    if (hidden)
+        priv->hiddenPlugins.addIfNotAlreadyThere (id);
+    else
+        priv->hiddenPlugins.removeString (id);
+    priv->savePluginMetadata (detail::pluginMetadataXmlFile());
+    priv->allPlugins.sendChangeMessage();
+}
+
+bool PluginManager::isPluginFavorite (const PluginDescription& desc) const
+{
+    return priv->favoritePlugins.contains (desc.createIdentifierString());
+}
+
+void PluginManager::setPluginFavorite (const PluginDescription& desc, bool favorite)
+{
+    const auto id = desc.createIdentifierString();
+    if (favorite)
+        priv->favoritePlugins.addIfNotAlreadyThere (id);
+    else
+        priv->favoritePlugins.removeString (id);
+    priv->savePluginMetadata (detail::pluginMetadataXmlFile());
+    priv->allPlugins.sendChangeMessage();
+}
+
+Array<PluginDescription> PluginManager::getVisiblePluginTypes() const
+{
+    Array<PluginDescription> result;
+    for (const auto& desc : priv->allPlugins.getTypes())
+        if (! priv->hiddenPlugins.contains (desc.createIdentifierString()))
+            result.add (desc);
+    return result;
+}
+
+Array<PluginDescription> PluginManager::getFavoritePluginTypes() const
+{
+    Array<PluginDescription> result;
+    for (const auto& desc : priv->allPlugins.getTypes())
+    {
+        const auto id = desc.createIdentifierString();
+        if (priv->favoritePlugins.contains (id) && ! priv->hiddenPlugins.contains (id))
+            result.add (desc);
+    }
+    return result;
+}
+
 } // namespace element

src/ui/block.cpp

@@ -555,7 +555,9 @@ void BlockComponent::mouseDown (const MouseEvent& e)
         const int result = menu.show();
         colorSelector.removeChangeListener (this);
 
-        const auto types = plugins.getKnownPlugins().getTypes();
+        // Must match the array used by NodePopupMenu::addReplaceSubmenu so the
+        // menu index resolves to the correct plugin.
+        const auto types = plugins.getVisiblePluginTypes();
 
         if (auto* message = menu.createMessageForResultCode (result))
         {

src/ui/contextmenus.hpp

@@ -24,21 +24,32 @@ class PluginsPopupMenu : public PopupMenu
         jassert (cc != nullptr);
         plugins = &cc->context().plugins();
         jassert (plugins != nullptr);
-        available = plugins->getKnownPlugins().getTypes();
+        available = plugins->getVisiblePluginTypes();
+        favorites = plugins->getFavoritePluginTypes();
     }
 
     bool isPluginResultCode (const int resultCode)
     {
         // clang-format off
-        return (plugins->getKnownPlugins().getIndexChosenByMenu (available, resultCode) >= 0) || 
+        return (isPositiveAndBelow (int (resultCode - favoriteResultOffset), favorites.size())) ||
+               (plugins->getKnownPlugins().getIndexChosenByMenu (available, resultCode) >= 0) ||
                (isPositiveAndBelow (int (resultCode - 20000), unverified.size()));
         // clang-format on
     }
 
     PluginDescription getPluginDescription (int resultCode, bool& verified)
     {
         jassert (plugins != nullptr);
-        int index = plugins->getKnownPlugins().getIndexChosenByMenu (available, resultCode);
+
+        // Favorites submenu — a subset of the visible/known plugins, so verified.
+        int index = resultCode - favoriteResultOffset;
+        if (isPositiveAndBelow (index, favorites.size()))
+        {
+            verified = true;
+            return favorites.getReference (index);
+        }
+
+        index = plugins->getKnownPlugins().getIndexChosenByMenu (available, resultCode);
         if (isPositiveAndBelow (index, available.size()))
         {
             verified = true;
@@ -57,6 +68,16 @@ class PluginsPopupMenu : public PopupMenu
         if (hasAddedPlugins)
             return;
         hasAddedPlugins = true;
+
+        if (! favorites.isEmpty())
+        {
+            PopupMenu favMenu;
+            for (int i = 0; i < favorites.size(); ++i)
+                favMenu.addItem (favoriteResultOffset + i, favorites.getReference (i).name);
+            addSubMenu ("Favorites", favMenu);
+            addSeparator();
+        }
+
         plugins->getKnownPlugins().addToMenu (*this, available, KnownPluginList::sortByManufacturer);
 
         PopupMenu unvMenu;
@@ -89,7 +110,11 @@ class PluginsPopupMenu : public PopupMenu
     }
 
 private:
-    Array<PluginDescription> available;
+    // Favorites use a private menu-id range so they never collide with the
+    // main list (which uses KnownPluginList's large menuIdBase) or the
+    // unverified submenu (which uses the 20000 range).
+    static constexpr int favoriteResultOffset = 10000;
+    Array<PluginDescription> available, favorites;
     OwnedArray<PluginDescription> unverified;
     PluginManager* plugins { nullptr };
     bool hasAddedPlugins = false;
@@ -222,7 +247,7 @@ class NodePopupMenu : public PopupMenu
 #if ! ELEMENT_SE
         PopupMenu menu;
         KnownPluginList::addToMenu (menu,
-                                    plugins.getKnownPlugins().getTypes(),
+                                    plugins.getVisiblePluginTypes(),
                                     KnownPluginList::sortByManufacturer,
                                     node.getFileOrIdentifier().toString());
         addSubMenu ("Replace", menu);

src/ui/navigationview.cpp

@@ -133,7 +133,7 @@ class PluginsNavigationItem : public TreeItemBase
     PluginsNavigationItem (PluginManager& pm)
         : plugins (pm)
     {
-        types = plugins.getKnownPlugins().getTypes();
+        types = plugins.getVisiblePluginTypes();
     }
 
     ~PluginsNavigationItem() {}