> From: Juri Linkov <j...@linkov.net> > Cc: Daniel Mendler <m...@daniel-mendler.de>, 73...@debbugs.gnu.org > Date: Sun, 08 Sep 2024 09:51:41 +0300 > > >> This is only a minor issue. After enabling `tab-bar-mode' when hovering > >> with the mouse over the `tab-bar-separator' space, an empty tool tip > >> will be shown after a short delay. > >> > >> To reproduce: > >> > >> 1. Start emacs -Q > >> 2. M-x tab-bar-mode > >> 3. Move the mouse pointer over the space right after the "*scratch*" tab > >> > >> Would it make sense to somehow prevent displaying blank tool tips, e.g., > >> via the following advice? Or maybe blank tool tips could be prevented on > >> the tab-bar level? > >> > >> (defun x-show-tip-adv (str &rest _) (string-blank-p str)) > >> (advice-add #'x-show-tip :before-until #'x-show-tip-adv) > > > > Juri, can we prevent such empty tooltips from being shown by tab bar? > > Maybe this unasked-for default fallback is not needed after all: > > diff --git a/src/xdisp.c b/src/xdisp.c > index f9a10267bad..18834c6b781 100644 > --- a/src/xdisp.c > +++ b/src/xdisp.c > @@ -15155,8 +15155,6 @@ note_tab_bar_highlight (struct frame *f, int x, int y) > help_echo_object = help_echo_window = Qnil; > help_echo_pos = -1; > help_echo_string = AREF (f->tab_bar_items, prop_idx + TAB_BAR_ITEM_HELP); > - if (NILP (help_echo_string)) > - help_echo_string = AREF (f->tab_bar_items, prop_idx + > TAB_BAR_ITEM_CAPTION); > } > > #endif /* HAVE_WINDOW_SYSTEM */
Do you remember why was this introduced?
