Load generic scripted config plugin for scripted effects

We check whether the effect is scripted and provides a config. If that
is the case our normal approach for getting the config plugin fails and
we use this case to try to load it again through the generic scripted
config plugin.

REVIEW: 116863
BUG: 332186

kcmkwin/kwincompositing/effectconfig.cpp

@@ -32,6 +32,8 @@
 #include <QStandardPaths>
 #include <QString>
 
+static const QString s_pluginDir = QStringLiteral("kf5/kwin/effects/configs/");
+
 namespace KWin {
 namespace Compositing {
 
@@ -40,15 +42,30 @@ EffectConfig::EffectConfig(QObject *parent)
 {
 }
 
-void EffectConfig::openConfig(const QString &serviceName)
+void EffectConfig::openConfig(const QString &serviceName, bool scripted)
 {
     //setup the UI
     QDialog dialog;
 
     // create the KCModule through the plugintrader
-    KCModule *kcm = KPluginTrader::createInstanceFromQuery<KCModule>(QStringLiteral("kf5/kwin/effects/configs/"), QString(),
-                                                                     QStringLiteral("[X-KDE-ParentComponents] == '%1'").arg(serviceName),
-                                                                     &dialog);
+    KCModule *kcm = nullptr;
+    if (scripted) {
+        // try generic module for scripted
+        const auto offers = KPluginTrader::self()->query(s_pluginDir, QString(),
+                                                         QStringLiteral("[X-KDE-Library] == 'kcm_kwin4_genericscripted'"));
+        if (!offers.isEmpty()) {
+            const KPluginInfo &generic = offers.first();
+            KPluginLoader loader(generic.libraryPath());
+            KPluginFactory *factory = loader.factory();
+            if (factory) {
+                kcm = factory->create<KCModule>(serviceName, &dialog);
+            }
+        }
+    } else {
+        kcm = KPluginTrader::createInstanceFromQuery<KCModule>(s_pluginDir, QString(),
+                                                               QStringLiteral("[X-KDE-ParentComponents] == '%1'").arg(serviceName),
+                                                               &dialog);
+    }
     if (!kcm) {
         return;
     }

kcmkwin/kwincompositing/effectconfig.h

@@ -36,7 +36,7 @@ public:
     explicit EffectConfig(QObject *parent = 0);
     QString serviceName(const QString &serviceName);
 
-    Q_INVOKABLE void openConfig(const QString &effectName);
+    Q_INVOKABLE void openConfig(const QString &effectName, bool scripted);
     Q_INVOKABLE void openGHNS();
 
 Q_SIGNALS:

kcmkwin/kwincompositing/model.cpp

@@ -69,6 +69,7 @@ QHash< int, QByteArray > EffectModel::roleNames() const
     roleNames[SupportedRole] = "SupportedRole";
     roleNames[ExclusiveRole] = "ExclusiveRole";
     roleNames[ConfigurableRole] = "ConfigurableRole";
+    roleNames[ScriptedRole] = QByteArrayLiteral("ScriptedRole");
     return roleNames;
 }
 
@@ -139,6 +140,8 @@ QVariant EffectModel::data(const QModelIndex &index, int role) const
             return m_effectsList.at(index.row()).internal;
         case ConfigurableRole:
             return m_effectsList.at(index.row()).configurable;
+        case ScriptedRole:
+            return m_effectsList.at(index.row()).scripted;
         default:
             return QVariant();
     }
@@ -207,11 +210,16 @@ void EffectModel::loadEffects()
         effect.supported = true;
         effect.exclusiveGroup = service->property(QStringLiteral("X-KWin-Exclusive-Category"), QVariant::String).toString();
         effect.internal = service->property(QStringLiteral("X-KWin-Internal"), QVariant::Bool).toBool();
+        effect.scripted = service->property(QStringLiteral("X-Plasma-API"), QVariant::String).toString().toLower() == QStringLiteral("javascript");
 
         auto it = std::find_if(configs.begin(), configs.end(), [&plugin](const KPluginInfo &info) {
             return info.property(QStringLiteral("X-KDE-ParentComponents")).toString() == plugin.pluginName();
         });
         effect.configurable = it != configs.end();
+        if (!effect.configurable && effect.scripted && !service->pluginKeyword().isEmpty()) {
+            // scripted effects have their pluginName() as the keyword
+            effect.configurable = service->property(QStringLiteral("X-KDE-ParentComponents")).toString() == service->pluginKeyword();
+        }
 
         m_effectsList << effect;
     }

kcmkwin/kwincompositing/model.h

@@ -50,6 +50,7 @@ struct EffectData {
     QString exclusiveGroup;
     bool internal;
     bool configurable;
+    bool scripted;
 };
 
 class EffectModel : public QAbstractItemModel
@@ -73,7 +74,8 @@ public:
         SupportedRole,
         ExclusiveRole,
         InternalRole,
-        ConfigurableRole
+        ConfigurableRole,
+        ScriptedRole
     };
 
     explicit EffectModel(QObject *parent = 0);

kcmkwin/kwincompositing/qml/Effect.qml

@@ -130,7 +130,7 @@ Rectangle {
             enabled: effectStatusCheckBox.checked
             iconName: "configure"
             onClicked: {
-                effectConfig.openConfig(model.ServiceNameRole);
+                effectConfig.openConfig(model.ServiceNameRole, model.ScriptedRole);
             }
         }