nvda

2b3e9c20 - Remote Access: prevent multiple disconnection confirmation dialogs (#19442)

Remote Access: prevent multiple disconnection confirmation dialogs (#19442) Summary of the issue: In NVDA Remote Access, if a user is in "Follower" mode and the "Confirm disconnection when controlled" option is enabled, triggering the "Disconnect" action multiple times in rapid succession (e.g. by clicking the menu item repeatedly) results in multiple confirmation dialogs stacking on top of each other. Description of user facing changes: When attempting to disconnect from a Remote Access session, if a confirmation dialog is already open, NVDA will now focus the existing dialog instead of opening a new one. Description of developer facing changes: None. Description of development approach: The RemoteClient now maintains a reference to the active disconnection confirmation dialog in self._disconnectConfirmationDialog. In doDisconnect, if this reference is set, the existing dialog is brought to the foreground. Otherwise, a new dialog is created, stored in the reference, and cleared in a finally block after it closes. This prevents re-entrancy while targeting only the specific dialog instance.