show_error_details
Description:
Shows a terminal-like widget for error details that can be expanded by the user.
This method can be useful to provide the user extended error details in a terminal-like text view. Calling this method will not add any widgets to the Granite.MessageDialog.custom_bin.
Subsequent calls to this method will change the error message to a new one.
Parameters:
| error_message |
the detailed error message to display |