string welcome_message, LoginCallback on_login_clicked)
Attempts to install a pane displaying the text 'welcome_message' above a push button labeled “Login” in the on-screen publishing dialog box, making it visible to the user.
When the user clicks the “Login” button, you’ll be notified of the user’s action through the callback 'on_login_clicked'. Every Publisher should provide a welcome pane to introduce the service and explain service-specific features or restrictions. To provide visual consistency across publishing services and to allow Shotwell to handle internationalization, always use this convenience method; don’t contruct and install welcome panes manually.
If an error has posted, the PluginHost will not honor this request.
| welcome_message | the text to be displayed above a push button labeled “Login” in the on-screen publishing dialog box. |
| on_login_clicked | specifies the callback that is invoked when the user clicks the “Login” button. |