eww: Add color-scheme switch button

tree/.config/eww/eww.yuck

@@ -41,10 +41,11 @@
 		(temperature)
 		(battery)
 		(box :class "thingy" (systray :orientation "v"))
+		(color_scheme)
 		(kb_layout)
 		(date)
 		(clock)
-		(pwr)
+		(lock)
 ))
 
 (defwidget workspaces [monitor]
@@ -152,6 +153,19 @@
 		;(label :text "${bat_charge}%")
 ))
 
+(defwidget color_scheme []
+	(button 
+		:onclick {
+			color_scheme == "light" ? "set-color-scheme dark && ${EWW_CMD} update color_scheme=dark"
+			                        : "set-color-scheme light && ${EWW_CMD} update color_scheme=light"
+		}
+		:hexpand true
+		:class "bigthingy clickable"
+		(label :text {
+			color_scheme == "light" ? "" : ""
+		})
+))
+
 (defwidget kb_layout []
 	(button :onclick "niri msg action switch-layout next"
 			:hexpand true
@@ -178,10 +192,18 @@
 		(label :text current_minute)
 ))
 
+(defwidget lock []
+	(button :orientation "v"
+		    :valign "end"
+		    :class "bigthingy clickable"
+		    :onclick "loginctl lock-session"
+		(label :text "󰩈")
+))
+
 (defwidget pwr []
 	(button :orientation "v"
 		    :valign "end"
-		    :class "thingy pwrbtn clickable"
+		    :class "bigthingy clickable"
 		    :onclick "${EWW_CMD} open --toggle pwrctl"
 		(label :text "⏻")
 ))
@@ -216,3 +238,4 @@
 (defpoll bat_charge      :interval "15s" "cat /sys/class/power_supply/BAT0/capacity")
 (defpoll bat_status      :interval "15s" "cat /sys/class/power_supply/BAT0/status")
 (defpoll current_temp    :interval "5s"  "cat /sys/class/thermal/thermal_zone*/temp")
+(defpoll color_scheme    :interval "5s"  "get-color-scheme")