Make sure we're looking both for json and desktop metadata

We shouldn't assume metadata is in metadata.desktop

REVIEW: 129276

shell/containmentconfigview.cpp

@@ -141,8 +141,8 @@ PlasmaQuick::ConfigModel *ContainmentConfigView::wallpaperConfigModel()
             QStringList packages;
 
             foreach (const QString &sdir, dir.entryList(QDir::AllDirs | QDir::Readable)) {
-                QString metadata = dirPath + '/' + sdir + "/metadata.desktop";
-                if (QFile::exists(metadata)) {
+                const QString metadata = dirPath + '/' + sdir;
+                if (QFile::exists(metadata + "/metadata.json") || QFile::exists(metadata + "/metadata.desktop")) {
                     packages << sdir;
                 }
             }

shell/scripting/scriptengine_v1.cpp

@@ -510,6 +510,11 @@ QScriptValue ScriptEngine::V1::loadTemplate(QScriptContext *context, QScriptEngi
         if (sc) {
             const QString overridePackagePath = sc->lookAndFeelPackage().path() + QStringLiteral("contents/layouts/") + pluginData.pluginId();
 
+            path = overridePackagePath + QStringLiteral("/metadata.json");
+            if (QFile::exists(path)) {
+                package.setPath(overridePackagePath);
+            }
+
             path = overridePackagePath + QStringLiteral("/metadata.desktop");
             if (QFile::exists(path)) {
                 package.setPath(overridePackagePath);
@@ -518,7 +523,10 @@ QScriptValue ScriptEngine::V1::loadTemplate(QScriptContext *context, QScriptEngi
     }
 
     if (!package.isValid()) {
-        path = QStandardPaths::locate(QStandardPaths::GenericDataLocation, package.defaultPackageRoot() + pluginData.pluginId() + "/metadata.desktop");
+        path = QStandardPaths::locate(QStandardPaths::GenericDataLocation, package.defaultPackageRoot() + pluginData.pluginId() + "/metadata.json");
+        if (path.isEmpty()) {
+            path = QStandardPaths::locate(QStandardPaths::GenericDataLocation, package.defaultPackageRoot() + pluginData.pluginId() + "/metadata.desktop");
+        }
         if (path.isEmpty()) {
             // qDebug() << "script path is empty";
             return false;

wallpapers/image/backgroundlistmodel.cpp

@@ -559,7 +559,7 @@ void BackgroundFinder::run()
                 }
 
                 const QString filePath = wp.filePath();
-                if (QFile::exists(filePath + QString::fromLatin1("/metadata.desktop"))) {
+                if (QFile::exists(filePath + QString::fromLatin1("/metadata.desktop")) || QFile::exists(filePath + QString::fromLatin1("/metadata.json"))) {
                     package.setPath(filePath);
                     if (package.isValid()) {
                         if (!package.filePath("images").isEmpty()) {

wallpapers/image/image.cpp

@@ -466,7 +466,9 @@ void Image::setSingleImage()
         }
     } else {
         //if it's not an absolute path, check if it's just a wallpaper name
-        const QString path = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1String("wallpapers/") + QString(m_wallpaper + QString::fromLatin1("/metadata.desktop")));
+        QString path = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1String("wallpapers/") + QString(m_wallpaper + QString::fromLatin1("/metadata.json")));
+        if (path.isEmpty())
+            path = QStandardPaths::locate(QStandardPaths::GenericDataLocation, QLatin1String("wallpapers/") + QString(m_wallpaper + QString::fromLatin1("/metadata.desktop")));
 
         if (!path.isEmpty()) {
             QDir dir(path);