plugin/fsm: update relativePath when path changed

2 files changed, 20 insertions, 2 deletions

diff --git a/plugin/src/Caelestia/Models/filesystemmodel.cpp b/plugin/src/Caelestia/Models/filesystemmodel.cpp
index 90ba5a9..9cebaec 100644
--- a/plugin/src/Caelestia/Models/filesystemmodel.cpp
+++ b/plugin/src/Caelestia/Models/filesystemmodel.cpp
@@ -64,6 +64,14 @@ QString FileSystemEntry::mimeType() const {
     return m_mimeType;
 }
 
+void FileSystemEntry::updateRelativePath(const QDir& dir) {
+    const auto relPath = dir.relativeFilePath(m_path);
+    if (m_relativePath != relPath) {
+        m_relativePath = relPath;
+        emit relativePathChanged();
+    }
+}
+
 FileSystemModel::FileSystemModel(QObject* parent)
     : QAbstractListModel(parent)
     , m_recursive(false)
@@ -105,6 +113,11 @@ void FileSystemModel::setPath(const QString& path) {
     emit pathChanged();
 
     m_dir.setPath(m_path);
+
+    for (const auto& entry : m_entries) {
+        entry->updateRelativePath(m_dir);
+    }
+
     update();
 }
 
diff --git a/plugin/src/Caelestia/Models/filesystemmodel.hpp b/plugin/src/Caelestia/Models/filesystemmodel.hpp
index cd2240d..07fb1a1 100644
--- a/plugin/src/Caelestia/Models/filesystemmodel.hpp
+++ b/plugin/src/Caelestia/Models/filesystemmodel.hpp
@@ -17,7 +17,7 @@ class FileSystemEntry : public QObject {
     QML_UNCREATABLE("FileSystemEntry instances can only be retrieved from a FileSystemModel")
 
     Q_PROPERTY(QString path READ path CONSTANT)
-    Q_PROPERTY(QString relativePath READ relativePath CONSTANT)
+    Q_PROPERTY(QString relativePath READ relativePath NOTIFY relativePathChanged)
     Q_PROPERTY(QString name READ name CONSTANT)
     Q_PROPERTY(QString baseName READ baseName CONSTANT)
     Q_PROPERTY(QString parentDir READ parentDir CONSTANT)
@@ -41,11 +41,16 @@ public:
     [[nodiscard]] bool isImage() const;
     [[nodiscard]] QString mimeType() const;
 
+    void updateRelativePath(const QDir& dir);
+
+signals:
+    void relativePathChanged();
+
 private:
     const QFileInfo m_fileInfo;
 
     const QString m_path;
-    const QString m_relativePath;
+    QString m_relativePath;
 
     mutable bool m_isImage;
     mutable bool m_isImageInitialised;