Variable: tab-switcher-mode-hook
tab-switcher-mode-hook is a variable defined in tab-bar.el.gz.
Value
nil
Documentation
Hook run after entering Window Configurations mode.
No problems result if this variable is not bound.
add-hook automatically binds it. (This is true for all hook variables.)
Source Code
;; Defined in /usr/src/emacs/lisp/tab-bar.el.gz
(define-derived-mode tab-switcher-mode nil "Window Configurations"
"Major mode for selecting a window configuration.
Each line describes one window configuration in Emacs.
Letters do not insert themselves; instead, they are commands.
\\<tab-switcher-mode-map>
\\[tab-switcher-mouse-select] -- select window configuration you click on.
\\[tab-switcher-select] -- select current line's window configuration.
\\[tab-switcher-delete] -- mark that window configuration to be deleted, and move down.
\\[tab-switcher-delete-backwards] -- mark that window configuration to be deleted, and move up.
\\[tab-switcher-execute] -- delete marked window configurations.
\\[tab-switcher-unmark] -- remove all kinds of marks from current line.
With prefix argument, also move up one line.
\\[tab-switcher-backup-unmark] -- back up a line and remove marks."
(setq truncate-lines t))