DataPaths: Add locate function

src/lib/app/datapaths.cpp

@@ -77,6 +77,19 @@ QStringList DataPaths::allPaths(DataPaths::Path type)
     return qz_data_paths()->m_paths[type];
 }
 
+// static
+QString DataPaths::locate(Path type, const QString &file)
+{
+    const QStringList dirs = allPaths(type);
+    for (const QString &dir : dirs) {
+        const QString fullPath = QDir(dir).absoluteFilePath(file);
+        if (QFileInfo::exists(fullPath)) {
+            return fullPath;
+        }
+    }
+    return QString();
+}
+
 // static
 QString DataPaths::currentProfilePath()
 {

src/lib/app/datapaths.h

@@ -53,6 +53,8 @@ public:
     static QString path(Path type);
     // Returns all paths (Themes -> /usr/share/themes, ~/.config/falkon/themes)
     static QStringList allPaths(Path type);
+    // Returns full path of existing file
+    static QString locate(Path type, const QString &file);
     // Convenience function for getting CurrentProfile
     static QString currentProfilePath();
 

src/lib/app/mainapplication.cpp

@@ -991,16 +991,7 @@ void MainApplication::loadSettings()
 
 void MainApplication::loadTheme(const QString &name)
 {
-    QString activeThemePath;
-    const QStringList themePaths = DataPaths::allPaths(DataPaths::Themes);
-
-    foreach (const QString &path, themePaths) {
-        const QString theme = QString("%1/%2").arg(path, name);
-        if (QFile::exists(theme + QLatin1String("/main.css"))) {
-            activeThemePath = theme;
-            break;
-        }
-    }
+    QString activeThemePath = DataPaths::locate(DataPaths::Themes, name);
 
     if (activeThemePath.isEmpty()) {
         qWarning() << "Cannot load theme " << name;

src/lib/plugins/plugins.cpp

@@ -109,14 +109,8 @@ void Plugins::loadPlugins()
         if (QFileInfo(pluginFile).isAbsolute()) {
             fullPath = pluginFile;
         } else {
-            const QStringList dirs = DataPaths::allPaths(DataPaths::Plugins);
-            for (const QString &dir : dirs) {
-                fullPath = dir + QL1C('/') + pluginFile;
-                if (QFileInfo::exists(fullPath)) {
-                    break;
-                }
-            }
-            if (!QFileInfo::exists(fullPath)) {
+            fullPath = DataPaths::locate(DataPaths::Plugins, pluginFile);
+            if (fullPath.isEmpty()) {
                 qWarning() << "Plugin" << pluginFile << "not found";
                 continue;
             }