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local wezterm = require("wezterm")
-- The filled in variant of the < symbol
local SOLID_LEFT_ARROW = wezterm.nerdfonts.pl_right_hard_divider
-- The filled in variant of the > symbol
local SOLID_RIGHT_ARROW = wezterm.nerdfonts.pl_left_hard_divider
-- This function returns the suggested title for a tab.
-- It prefers the title that was set via `tab:set_title()`
-- or `wezterm cli set-tab-title`, but falls back to the
-- title of the active pane in that tab.
function tab_title(tab_info)
local title = tab_info.tab_title
-- if the tab title is explicitly set, take that
if title and #title > 0 then
return title
end
-- Otherwise, use the title from the active pane
-- in that tab
return tab_info.active_pane.title
end
wezterm.on(
'format-tab-title',
function(tab, tabs, panes, config, hover, max_width)
local edge_background = '#0b0022'
local background = '#1b1032'
local foreground = '#808080'
if tab.is_active then
background = '#2b2042'
foreground = '#c0c0c0'
elseif hover then
background = '#3b3052'
foreground = '#909090'
end
local edge_foreground = background
local title = tab_title(tab)
-- ensure that the titles fit in the available space,
-- and that we have room for the edges.
title = wezterm.truncate_right(title, max_width - 2)
return {
{ Background = { Color = edge_background } },
{ Foreground = { Color = edge_foreground } },
{ Text = SOLID_LEFT_ARROW },
{ Background = { Color = background } },
{ Foreground = { Color = foreground } },
{ Text = title },
{ Background = { Color = edge_background } },
{ Foreground = { Color = edge_foreground } },
{ Text = SOLID_RIGHT_ARROW },
}
end
)
return {}
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