block the user from saving to invalid filenames on the data widget

ISISNeutronMuon · Jan 7, 2025 · 012b9de · 012b9de
1 parent 2def3a1
commit 012b9de
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/MDANSE_GUI/Src/MDANSE_GUI/Tabs/Visualisers/DataWidget.py b/MDANSE_GUI/Src/MDANSE_GUI/Tabs/Visualisers/DataWidget.py
@@ -110,6 +110,7 @@ def make_bottom_bar(self):
         self.layout().addLayout(layout)
         layout.addWidget(QLabel("Output file:"))
         self._output_widget = QLineEdit("", self)
+        self._output_widget.textChanged.connect(self.check_file_writable)
         layout.addWidget(self._output_widget)
         self._browse_button = QPushButton("Browse", self)
         self._browse_button.clicked.connect(self.output_file_dialog)
@@ -130,6 +131,15 @@ def make_bottom_bar(self):
         self._output_button.clicked.connect(self.save_to_file)
         layout.addWidget(self._output_button)
 
+    @Slot()
+    def check_file_writable(self):
+        if PLATFORM.is_file_writable(self._output_widget.text()):
+            self._output_button.setEnabled(True)
+            self._output_widget.setStyleSheet("")
+        else:
+            self._output_button.setEnabled(False)
+            self._output_widget.setStyleSheet("color: red;")
+
     @Slot()
     def output_file_dialog(self):
         new_value = QFileDialog.getSaveFileName(