5.21.0

(cherry picked from commit 0b28c5780e55ac544c1acace487aad0a8d8faf28)

WeakAurasOptions/OptionsFrames/OptionsFrame.lua

@@ -1609,5 +1609,40 @@ function OptionsPrivate.CreateFrame()
   local left, right, top, bottom = w/2,-w/2, 0, h-25
   frame:SetClampRectInsets(left, right, top, bottom)
 
+  -- Add warning about Midnight support ending, to notify users about possible coming changes
+  local midnightWarning = CreateFrame("Frame", nil, frame)
+  midnightWarning:SetBackdrop({
+    bgFile = "Interface\\Addons\\WeakAuras\\Media\\Textures\\Square_FullWhite.tga",
+    edgeFile = "Interface\\Tooltips\\UI-Tooltip-Border",
+    tile = true,
+    tileSize = 16,
+    edgeSize = 16,
+    insets = { left = 4, right = 4, top = 4, bottom = 4 }
+  })
+
+  midnightWarning:SetBackdropBorderColor(1, 0, 0, 1);
+  midnightWarning:SetBackdropColor(0, 0, 0, 1)
+
+  midnightWarning:SetPoint("TOPLEFT", frame, "BOTTOMLEFT")
+  midnightWarning:SetPoint("TOPRIGHT", frame, "BOTTOMRIGHT")
+  midnightWarning:SetHeight(50)
+
+  local text = midnightWarning:CreateFontString(nil, "OVERLAY", "GameFontNormalLarge")
+  text:SetPoint("LEFT", midnightWarning, "LEFT", 10, 0)
+  text:SetText(L["WeakAuras will not support Midnight. On release of the prepatch, WeakAuras will be disabled.\nRead more on our Patreon page https://patreon.com/WeakAuras"])
+
+  -- Fade-out animation and hide for rest of the session
+  local fade = midnightWarning:CreateAnimationGroup()
+  local alpha = fade:CreateAnimation("Alpha")
+  alpha:SetChange(-1)
+  alpha:SetDuration(0.5)
+  alpha:SetStartDelay(5) -- hide after 5 second
+  alpha:SetSmoothing("OUT")
+  fade:SetScript("OnFinished", function()
+    midnightWarning:Hide()
+  end)
+
+  fade:Play()
+
   return frame
 end