Trigger Code when the Window Size Changes

Question

I created a button that temporarily fixes the text alignment bug described here. The code for the button is shown below.

Button["Update", 
 Do[FrontEndExecute[
   FrontEndToken[InputNotebook[], "ToggleDynamicUpdating"]], {2}]]

The gif below illustrates how it works.

I would like to make this better by not using a button at all. Instead, I would like the code to trigger anytime the window size changes which would fix the issue permanently. Seems like something simple but can't figure it out.

Edit 1: I came up with an improvement but still not what I want. I put the following code into my init.m file and now it updates when I move the cursor in the notebook window. Unfortunately, it does not update while I'm changing the size of the window. I have to move the cursor into the notebook for the update the happen.

SetOptions[$FrontEndSession,FrontEndEventActions->{"MouseMoved":>Do[FrontEndExecute[FrontEndToken[InputNotebook[],"ToggleDynamicUpdating"]],{2}],PassEventsDown->True}]

I somehow need to trigger the code when there is a change to CurrentValue[WindowSize]. Any ideas?

Answer 1

_{Posting this as an answer since it seems to fulfil the requirements}

You can use NotebookDynamicExpression together with AbsoluteCurrentValue[WindowSize] to get an expression that is dynamically updated when the window size is changed:

SetOptions[
 EvaluationNotebook[],
 NotebookDynamicExpression :> Echo@AbsoluteCurrentValue[WindowSize]
 ]

Note the use of :> (RuleDelayed) for the option to prevent premature evaluation (wrapping the option in Dynamic also works). The Echo is just used to demonstrate that it works, and it can be replaced with any other function that depends on the window size. If you don't care about the actual window size and just want to run code when it changes, something like

NotebookDynamicExpression:>(AbsoluteCurrentValue[WindowSize];(* do stuff... *))

works