24e842c52e
This is where it gets hairy. Some quick settings items will have an associated menu. When opened, the main menu should grow to make room for the child menu, as it would do if it contained the child. At the same time, the child menu will attach to its parent, and block all input there while it is open. Menu-modal menus so to speak. Implement this as follows: - change the QuickSettingsMenu actor to a stack that holds - the boxpointer (a.k.a. the actual menu) - an overlay actor to hold child menus - use constraints to bind the overlay's position and width to the boxpointer; the y position is offset to align the overlay with the grid inside the actual menu - add a placeholder actor to the main grid, whose height is bound to the overlay height; using a "clone" instead of the actual overlay means that layout changes are not triggered from outside the grid hierarchy, which would be prone to allocation warnings - update the layout manager to not allocate the placeholder as a regular grid child, but instead include its height in the space underneath the row with an open menu - apply a dim effect to the boxpointer when a child menu is open, to indicate that input is blocked Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2393>
GNOME Shell
GNOME Shell provides core user interface functions for the GNOME desktop, like switching to windows and launching applications. GNOME Shell takes advantage of the capabilities of modern graphics hardware and introduces innovative user interface concepts to provide a visually attractive and easy to use experience.
For more information about GNOME Shell, including instructions on how to build GNOME Shell from source and how to get involved with the project, see the project wiki.
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