A patch for adding two new Bouquet Statusbars to the VuhDo addon: Total absorption % and Excess absorption %, which show the amount of absorption on a unit as a fraction of the unit's maximum health. "Total" refers the sum of all absorption effects, while "Excess" refers the sum of all absorption effects minus the amount of missing health.

vuhdo-absorption.patch

--- VuhDo/VuhDoBouquetValidators.lua	2014-10-16 04:18:04.000000000 -0400
+++ VuhDo/VuhDoBouquetValidators.lua	2014-10-15 23:11:25.199736500 -0400
@@ -646,12 +646,31 @@
 	return true, nil, VUHDO_getIncHealOnUnit(anInfo["unit"]), -1, anInfo["healthmax"];
 end
 
 
 
 --
+local function VUHDO_statusExcessAbsorbValidator(anInfo, _)
+	local healthmax = anInfo["healthmax"]
+	local excessAbsorb = (UnitGetTotalAbsorbs(anInfo["unit"]) or 0) + anInfo["health"] - healthmax
+	if excessAbsorb < 0 then
+		return true, nil, 0, -1, healthmax
+	end
+	return true, nil, excessAbsorb, -1, healthmax
+end
+
+
+
+--
+local function VUHDO_statusTotalAbsorbValidator(anInfo, _)
+	return true, nil, UnitGetTotalAbsorbs(anInfo["unit"]) or 0, -1, anInfo["healthmax"]
+end
+
+
+
+--
 local function VUHDO_statusThreatValidator(anInfo, _)
 	return true, nil, anInfo["threatPerc"], -1, 100;
 end
 
 
 
@@ -1250,12 +1269,26 @@
 		["displayName"] = VUHDO_I18N_BOUQUET_STATUS_INCOMING,
 		["validator"] = VUHDO_statusIncomingValidator,
 		["custom_type"] = VUHDO_BOUQUET_CUSTOM_TYPE_STATUSBAR,
 		["interests"] = { VUHDO_UPDATE_INC },
 	},
 
+	["STATUS_EXCESSABSORB"] = {
+		["displayName"] = "Statusbar: Excess absorption %",
+		["validator"] = VUHDO_statusExcessAbsorbValidator,
+		["custom_type"] = VUHDO_BOUQUET_CUSTOM_TYPE_STATUSBAR,
+		["interests"] = { VUHDO_UPDATE_HEALTH, VUHDO_UPDATE_HEALTH_MAX, VUHDO_UPDATE_SHIELD },
+	},
+
+	["STATUS_TOTALABSORB"] = {
+		["displayName"] = "Statusbar: Total absorption %",
+		["validator"] = VUHDO_statusTotalAbsorbValidator,
+		["custom_type"] = VUHDO_BOUQUET_CUSTOM_TYPE_STATUSBAR,
+		["interests"] = { VUHDO_UPDATE_HEALTH_MAX, VUHDO_UPDATE_SHIELD },
+	},
+
 	["STATUS_THREAT"] = {
 		["displayName"] = VUHDO_I18N_BOUQUET_STATUS_THREAT,
 		["validator"] = VUHDO_statusThreatValidator,
 		["custom_type"] = VUHDO_BOUQUET_CUSTOM_TYPE_STATUSBAR,
 		["interests"] = { VUHDO_UPDATE_THREAT_PERC },
 	},