Module controls 

Header bar button wiring, search, sort, source-mode, timeline, and sidebar/grid handlers.

Connects signal handlers for the library header bar controls including the search entry, sort-mode dropdown, view-source toggle, timeline scrubber, and sidebar collapse button.

Functions

auto_hide_sidebar 🔒

connect_controls 🔒

connect_grid_handlers 🔒

connect_sidebar_handlers 🔒

navigate_back 🔒

Pop the navigation history and switch to the previous source. Returns true if a back-step was taken, false when the history was empty.

refresh_library_after_mutation 🔒

refresh_library_surfaces 🔒

sidebar_dispatch 🔒

Common path for sidebar selections. Skips redundant dispatches so the reload_sidebar programmatic re-selection doesn’t loop into another fetch – but only when the content stack is already showing the current source, since the Albums grid moves the stack without changing source.

update_back_button 🔒