[Feature Request] Hover to dismiss

[oct2pus]

Since swapping to a wlroots based desktop I've been using Mako, one thing I really miss from Gnome was that I could dismiss notifications by simply moving my mouse over a notification, and then moving my mouse off of it. It'd be a very nice-to-have since it reduces friction when interacting with desktop notifications.

[oisanjaya]

I also miss this feature, so i made a patch.
Basically I call close_notification() from wayland.c:pointer_handle_leave() via event loop by calling add_event_loop_timer() calling back handle_notification_hover_dismiss_timer() to introduce timeout to hover-to-dismiss feature.
Consequently I create several helper structures and functions, that is:

• hover_dismiss_timer in global state
• hover_to_dismiss_timeout in mako_style_spec and mako_style
• handle_notification_hover_dismiss_timer() in wayland.c
• hotspot_at_offset() in notification.c
  I also update .gitignore as I work with clangd and vscodium, and add several doc string and shell completion scripts

This patch adds hover-to-dismiss-timeout to config file (defaulting to 0). If this value greater than 0 then this is timeout delay before last hovered notification will be dismissed.

add_hover_to_dismiss.patch

[oisanjaya]

Checkout PR #618