Split Terminals - "focusFollowMouse": true,

[chadleyw]

Windows Terminal version

1.24.11911.0

Windows build number

10.0.26200

Other Software

No response

Steps to reproduce

I have "focusFollowMouse": true,

I also have the k8s in a menu with a separator
It will look something like this:

Main Menu
├── Kubernetes Environment A
│ ├── Cluster A - Control Plane 1
│ ├── Cluster A - Control Plane 2
│ ├── Cluster A - Control Plane 3
│ ├── Cluster B - Control Plane 1
│ ├── Cluster B - Control Plane 2
│ ├── Cluster B - Control Plane 3
│ ├── Cluster B - Control Plane 4
----------separator------------
│ ├── Environment A - Control Planes
│ └── Environment A - Worker Nodes

a split pane example:

            {
                "colorScheme": "Raspberry",
                "commandline": "wt -w 0 nt -p k8cp-01 ; sp -H -p k8cp-02 ; sp -V -p k8bcp-03",
                "guid": "{e4a8f6c3-1451-477e-bf9f-e6aa8bb2b0c2}",
                "icon": "C:\\Scripts\\WindowsTerminals\\windows-terminal-icons\\icons\\ubuntu.png",
                "name": "K8 Control Planes",
                "tabTitle": "k8-cp-1-3"
            },

The issue is
I want the split screen to open like this every time.

-------------------------------------
|                k8cp-01            |
-------------------------------------
|       k8cp-02  |       k8cp-03    |
-------------------------------------

The problem is that with focusFollowsMouse set to true, when you mouse leave the menu, you might be over the area of the screen that's not the first pane and you end up with really strange splits

The most common problem is the he mouse is in teh TOP pane and it splits that instead of the bottom pane
you end up with this:

-------------------------------------
|       k8cp-01  |      k8cp-03     |
-------------------------------------
|            k8cp-02                 |
-------------------------------------

Where I have the 4 way split

{
    "colorScheme": "Raspberry",
    "commandline": "wt -w 0 nt -p k8nd-01 ; sp -V -p k8nd-03 ; sp -H -p k8nd-04; mf left ; sp -H -p k8nd-02",
    "guid": "{960f4d8d-b89a-4d75-8093-4f28ebb94839}",
    "icon": "C:\\Scripts\\WindowsTerminals\\windows-terminal-icons\\icons\\ubuntu.png",
    "name": "K8ND Worker Nodes",
    "tabTitle": "k8nd-01-04"
}

-------------------------------------
|       k8nd-01  |            k8nd-03     |
-------------------------------------
|        k8nd-02 |            k8nd-04     |
-------------------------------------

It ends up looking like this:

-------------------------------------
|       k8nd-01     |                           |
------------------|                           | 
|        k8nd-02    |         k8nd-03     |    
------------------|                           | 
|        k8nd-04    |                           | 
-------------------------------------

Expected Behavior

I would expect the application:

wt -w 0 nt -p k8nd-01 ; sp -V -p k8nd-03 ; sp -H -p k8nd-04; mf left ; sp -H -p k8nd-02

to ignore the mouse focus

Actual Behavior

"focusFollowMouse": true,
is messing with terminal splits

[DHowett]

We really ought to make splitting not procedural.