Rework the way triggers and indicators work

Triggers are now a link between link between a datasource (for now only
AuraList) and an indicator (for now only SquareIndicator).

src/types/unitframe.lua

@@ -18,7 +18,8 @@ local omif = select(2, ...)
 local types = omif.GetModule("types")
 local StatusBar = types.StatusBar
 local AuraList = types.AuraList
-local Indicator = types.Indicator
+local SquareIndicator = types.SquareIndicator
+local AuraTrigger = types.AuraTrigger
 
 types.UnitFrame = types.CreateClass("UnitFrame")
 local UnitFrame = types.UnitFrame
@@ -59,11 +60,29 @@ function UnitFrame:Init(unit, width, height, hideInRaid)
     overlays:Show()
     self.overlays = overlays
     self:CreateName()
-    self.indicators = {
-        Indicator:new(self, self.auras, 14, "TOPLEFT", 2, -2, colors.white, 383648),
-        Indicator:new(self, self.auras, 14, "TOPLEFT", 2, -2, colors.white, 974),
-        Indicator:new(self, self.auras, 14, "BOTTOMLEFT", 2, 2, colors.cyan, 61295)
-    }
+
+    self.auras:AddTrigger(
+        AuraTrigger:new(
+            SquareIndicator:new(self, 14, "TOPLEFT", 2, -2, colors.white),
+            383648, -- Second Earthshield on self
+            true
+        )
+    )
+    self.auras:AddTrigger(
+        AuraTrigger:new(
+            SquareIndicator:new(self, 14, "TOPLEFT", 2, -2, colors.white),
+            974, -- Earthshield
+            true
+        )
+    )
+    self.auras:AddTrigger(
+        AuraTrigger:new(
+            SquareIndicator:new(self, 14, "BOTTOMLEFT", 2, 2, colors.cyan),
+            61295, -- Riptide
+            true
+        )
+    )
+
     self:RegisterEvents()
     self:Enable()
 end
@@ -143,7 +162,7 @@ function UnitFrame:PrepareWheelBinds()
         self:SetBindingClick(false, "ALT-MOUSEWHEELUP", "BUTTONNAME", "alt-wheel-up")
         self:SetBindingClick(false, "ALT-MOUSEWHEELDOWN", "BUTTONNAME", "alt-wheel-down")
     ]]):gsub("BUTTONNAME", "OmicronSecureFrame" .. self.unit)
-   
+
     local removeBindScript = [[
         self:ClearBindings()
     ]]
@@ -297,7 +316,7 @@ function UnitFrame:UNIT_HEALTH()
         self:UpdateAll(true)
         return
     end
-    self:UpdateHealth() 
+    self:UpdateHealth()
     self:UpdateHealthColor()
 end
 
@@ -306,7 +325,7 @@ function UnitFrame:UNIT_MAXHEALTH()
         self:UpdateAll(true)
         return
     end
-    self:UpdateHealth() 
+    self:UpdateHealth()
     self:UpdateHealthColor()
 end