(feat) txt as default for save/open filedialog

Changelog.txt

@@ -1,3 +1,6 @@
+2023-08-17 -- v0.8.2
+-- `txt` as a default extension for saving/opening file.
+
 2023-08-16 -- v0.8.1
 -- Fixed issue with saving configurations in Windows
 

negar_gui/constants.py

@@ -1,7 +1,7 @@
 import platform
 from pathlib import Path
 
-__version__ = "0.8.1"
+__version__ = "0.8.2"
 
 APPDATA = "AppData/Roaming/" if platform.system() == "Windows" else "."
 SETTING_FILE = Path.home() / f"{APPDATA}negar-gui/settings.toml"

negar_gui/main.py

@@ -478,9 +478,11 @@ def _statusBar(self, notification="", timeout=0):
         self.statusBar.showMessage(message, timeout)
 
     def open_file_slot(self):
-        filename, _ = self.fileDialog.getOpenFileName(self, "Open File - A Plain Text", ".")
+        filename, _ = self.fileDialog.getOpenFileName(
+            self, "Open File - A Plain Text", ".", "Text Files (*.txt);;All Files (*)",
+        )
         if filename:
-            with open(filename, encoding="utf-8") as f:
+            with Path(filename).open(encoding="utf-8") as f:
                 try:
                     self.input_editor.setPlainText(str(f.read()))
                     self.filename = Path(filename)
@@ -505,12 +507,15 @@ def save_file_slot(self):
     def export_file_slot(self):
         if not self.output_editor.toPlainText():
             return
-        filename, _ = self.fileDialog.getSaveFileName(self, "Save File", ".")
+        filename, ext_type = self.fileDialog.getSaveFileName(
+            self, "Save File", ".", "Text Files (*.txt);;All Files (*)",
+        )
+        ext = ".txt" if ext_type.find(".txt") and not filename.endswith(".txt") else ""
         if filename:
-            with open(filename, "w", encoding="utf-8") as f:
+            with Path(f"{filename}{ext}").open("w", encoding="utf-8") as f:
                 try:
                     f.write(self.output_editor.toPlainText())
-                    self.filename = Path(filename)
+                    self.filename = Path(f"{filename}{ext}")
                     MAIN_WINDOW.setWindowTitle(f"Negar - {self.filename.name}")
                     statusbar_timeout(self, "File Saved.")
                 except Exception as exception: