>> 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 */
