Feat: Add Home/End key navigation

src/teletext/ui.py

@@ -152,8 +152,7 @@ class MainWindow(QMainWindow):
                                   QMessageBox.StandardButton.Save | QMessageBox.StandardButton.Discard | QMessageBox.StandardButton.Cancel)
         
         if ret == QMessageBox.StandardButton.Save:
-            self.save_file()
-            return True # check if save succeeded? save_file catches exceptions but we might want to check
+            return self.save_file()
         elif ret == QMessageBox.StandardButton.Discard:
             return True
         else:
@@ -311,25 +310,35 @@ class MainWindow(QMainWindow):
         self.current_file_path = fname
         self.save_file()
 
-    def save_file(self):
+    def save_file(self) -> bool:
         if not self.current_file_path:
              fname, _ = QFileDialog.getSaveFileName(self, "Save T42", "", "Teletext Files (*.t42)")
-             if not fname: return
+             if not fname: return False
              self.current_file_path = fname
         
         try:
             self.progress_bar.setVisible(True)
             self.status_label.setText(f"Saving {os.path.basename(self.current_file_path)}...")
             
+            # Rebuild all_packets from pages to ensure edits/undos/new packets are included.
+            # This serializes the pages in order, effectively "cleaning" the stream of orphans
+            # and ensuring the file matches the editor state.
+            new_all_packets = []
+            for page in self.service.pages:
+                new_all_packets.extend(page.packets)
+            self.service.all_packets = new_all_packets
+            
             save_t42(self.current_file_path, self.service, progress_callback=self.update_progress)
             
             self.progress_bar.setVisible(False)
             self.status_label.setText(f"Saved {len(self.service.pages)} pages to {os.path.basename(self.current_file_path)}")
             self.set_modified(False)
+            return True
         except Exception as e:
             self.progress_bar.setVisible(False)
             QMessageBox.critical(self, "Error", f"Failed to save file: {e}")
             self.status_label.setText("Error saving file")
+            return False
 
     def copy_page_content(self):
         if not self.current_page:
@@ -550,6 +559,12 @@ class MainWindow(QMainWindow):
             self.canvas.move_cursor(-1, 0)
         elif key == Qt.Key.Key_Right:
             self.canvas.move_cursor(1, 0)
+        elif key == Qt.Key.Key_Home:
+            # Move to start of line
+            self.canvas.set_cursor(0, self.canvas.cursor_y)
+        elif key == Qt.Key.Key_End:
+            # Move to end of line (39)
+            self.canvas.set_cursor(39, self.canvas.cursor_y)
         elif key == Qt.Key.Key_Return or key == Qt.Key.Key_Enter:
             # Move to start of next line
             self.canvas.cursor_x = 0