Release Toggle show monitoring FX chain v1.02 (ReaTeam#172)

Fix for MacOS - Now closes window.
Show monitor if docked but not the selected tab.
Additional checking to identify target window.

Author: Edgemeal

Diff for: FX/edgemeal_Toggle show monitoring FX chain.lua

@@ -0,0 +1,45 @@
+-- @description Toggle show monitoring FX chain
+-- @author Edgemeal
+-- @version 1.02
+-- @changelog
+--   Fix for MacOS - Now closes window.
+--   Show monitor if docked but not the selected tab.
+--   Additional checking to identify target window.
+
+function FindWindow(window_titles, child_id, child_must_visible)
+  local arr = reaper.new_array({}, 128)
+  for i = 1, #window_titles do
+    local title = reaper.JS_Localize(window_titles[i], 'common')
+    reaper.JS_Window_ArrayFind(title, true, arr)
+    local handles = arr.table()
+    for j = 1, #handles do
+      local hwnd = reaper.JS_Window_HandleFromAddress(handles[j]) -- window handle
+      local child_hwnd =  reaper.JS_Window_FindChildByID(hwnd, child_id) -- child handle
+      if child_hwnd then -- child control found
+        if child_must_visible and not reaper.JS_Window_IsVisible(child_hwnd) then -- child must be visible
+          return nil
+        else
+          return hwnd
+        end
+      end
+    end
+  end
+end
+
+function Main()
+  local t = {'FX: Monitoring','FX: Monitoring [BYPASSED]'} -- titlebar text(s) to find
+  local hwnd = FindWindow(t, 1076, true) -- 1076 = child id to find, true = child must be visible, i.e., docked but tab not selected.
+  if not hwnd then
+    reaper.Main_OnCommand(41882, 0) -- View: Show monitoring FX chain
+  else -- close fx monitor window
+    reaper.JS_Window_Destroy(hwnd) -- Tested Win7 & MacOS 10.12.
+  end
+end
+
+if not reaper.APIExists("JS_Window_Find") then
+  reaper.MB("js_ReaScriptAPI extension is required for this script.", "Missing API", 0)
+else
+  Main()
+end
+
+reaper.defer(function () end)