Release v1.0.8: recursive folder scan and file type filters.

Adds subfolder inclusion and extension presets so the preview list can target nested media without loading everything.

Co-authored-by: Cursor <[email protected]>

gui/main_window.py

@@ -22,11 +22,14 @@ from PyQt6.QtWidgets import (
     QHeaderView,
     QAbstractItemView,
     QFrame,
+    QCheckBox,
+    QComboBox,
 )
 from PyQt6.QtCore import Qt, QDir, QItemSelectionModel
 from PyQt6.QtGui import QFont, QColor
 
 from engine.pipeline import compute_preview, perform_renames, save_undo_log, load_undo_log, perform_undo
+from engine.file_scan import FILE_TYPE_PRESETS, list_files, parse_extension_filter, file_extension
 from engine.rules import Rule
 from .rule_widgets import (
     ReplaceRuleWidget,
@@ -70,6 +73,22 @@ class MainWindow(QMainWindow):
         dir_layout.addWidget(browse_btn)
         layout.addLayout(dir_layout)
 
+        filter_layout = QHBoxLayout()
+        self.recursive_cb = QCheckBox("Include subfolders")
+        self.recursive_cb.toggled.connect(self._reload_files)
+        filter_layout.addWidget(self.recursive_cb)
+        filter_layout.addWidget(QLabel("File types:"))
+        self.types_preset = QComboBox()
+        self.types_preset.addItems(list(FILE_TYPE_PRESETS.keys()) + ["Custom"])
+        self.types_preset.currentTextChanged.connect(self._on_types_preset_changed)
+        filter_layout.addWidget(self.types_preset)
+        self.types_edit = QLineEdit()
+        self.types_edit.setPlaceholderText("e.g. .mkv,.mp4 or *.avi (empty = all types)")
+        self.types_edit.setReadOnly(True)
+        self.types_edit.editingFinished.connect(self._reload_files)
+        filter_layout.addWidget(self.types_edit, 1)
+        layout.addLayout(filter_layout)
+
         # Split: left = rules, right = file list + preview
         split = QSplitter(Qt.Orientation.Horizontal)
 
@@ -160,6 +179,14 @@ class MainWindow(QMainWindow):
         if path:
             self.dir_edit.setText(path)
 
+    def _on_types_preset_changed(self, preset: str):
+        if preset != "Custom":
+            self.types_edit.setText(FILE_TYPE_PRESETS.get(preset, ""))
+            self.types_edit.setReadOnly(True)
+        else:
+            self.types_edit.setReadOnly(False)
+        self._reload_files()
+
     def _on_dir_changed(self):
         path = self.dir_edit.text().strip()
         if not path or not os.path.isdir(path):
@@ -167,10 +194,19 @@ class MainWindow(QMainWindow):
             self._file_names = []
         else:
             self._base_dir = path
-            self._file_names = sorted(
-                f for f in os.listdir(path)
-                if os.path.isfile(os.path.join(path, f)) and not f.startswith(".")
-            )
+            self._reload_files()
+            return
+        self._refresh_preview()
+
+    def _reload_files(self):
+        if not self._base_dir:
+            return
+        extensions = parse_extension_filter(self.types_edit.text())
+        self._file_names = list_files(
+            self._base_dir,
+            recursive=self.recursive_cb.isChecked(),
+            extensions=extensions,
+        )
         self._refresh_preview()
 
     def _on_rule_changed(self):
@@ -189,9 +225,7 @@ class MainWindow(QMainWindow):
 
     def _ext_for(self, filename: str) -> str:
         """Return file extension with leading dot, or empty string if none."""
-        if "." in filename and not filename.startswith("."):
-            return "." + filename.rsplit(".", 1)[-1].lower()
-        return ""
+        return file_extension(filename)
 
     def _on_preview_selection_changed(self):
         """Show preview (new name) only in selected rows; others show original."""
@@ -263,7 +297,8 @@ class MainWindow(QMainWindow):
             self.preview_status.setText("Warning: some new names are duplicated. Fix rules to avoid overwriting.")
             self.preview_status.setStyleSheet("color: #c00;")
         else:
-            self.preview_status.setText(f"{len(preview)} file(s). Ready to rename.")
+            scope = "including subfolders" if self.recursive_cb.isChecked() else "top folder only"
+            self.preview_status.setText(f"{len(preview)} file(s) ({scope}). Ready to rename.")
             self.preview_status.setStyleSheet("")
 
     def _apply_renames(self):
@@ -317,7 +352,7 @@ class MainWindow(QMainWindow):
         else:
             save_undo_log(self._base_dir, renames)
             QMessageBox.information(self, "Done", f"Renamed {len(results)} file(s).")
-        self._on_dir_changed()
+        self._reload_files()
 
     def _undo_renames(self):
         if not self._base_dir:
@@ -349,4 +384,4 @@ class MainWindow(QMainWindow):
             QMessageBox.warning(self, "Undo errors", msg)
         else:
             QMessageBox.information(self, "Undone", f"Reverted {len(results)} file(s).")
-        self._on_dir_changed()
+        self._reload_files()