1 files changed, 58 insertions, 21 deletions
diff --git a/dot_config/wezterm/tabs.lua b/dot_config/wezterm/tabs.lua
index 53c5548..49e570e 100644
--- a/dot_config/wezterm/tabs.lua
+++ b/dot_config/wezterm/tabs.lua
@@ -1,24 +1,61 @@
 local wezterm = require("wezterm")
 
-local M = {
-	tab_bar_style = {
-		active_tab_left = wezterm.format({
-			{ Background = { Color = "#3c3836" } },
-			{ Foreground = { Color = "#ebdbb2" } },
-		}),
-		active_tab_right = wezterm.format({
-			{ Background = { Color = "#3c3836" } },
-			{ Foreground = { Color = "#ebdbb2" } },
-		}),
-		inactive_tab_left = wezterm.format({
-			{ Background = { Color = "#665c34" } },
-			{ Foreground = { Color = "#bdae93" } },
-		}),
-		inactive_tab_right = wezterm.format({
-			{ Background = { Color = "#665c34" } },
-			{ Foreground = { Color = "#bdae93" } },
-		}),
-	},
-}
+-- The filled in variant of the < symbol
+local SOLID_LEFT_ARROW = wezterm.nerdfonts.pl_right_hard_divider
 
-return M
+-- 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 {}