Interaction with Horizontal Workspaces extension

[ptomato]

Having Horizontal Workspaces enabled seems to make the switch workspace gestures do nothing. It would be nice if these two extensions could interact and have "switch workspace", "previous workspace", and "next workspace" be able to be bound to horizontal 3-finger swipe and move the workspace when both extensions are active.

[marmitar]

Looking at how Horizontal Workspace sets the layout on workspace_manager, this could be worked around using a special dirNextWorkspace() as below instead of just Meta.MotionDirection.UP on actions 3 (switch workspace) and 6 (next workspace), with a similar function for previous workspace (actions 3 and 7).

function dirNextWorkspace() {
    // Vertical layout
    if (global.workspace_manager.layout_columns == 1) {
        return Meta.MotionDirection.UP;
    // Horizontal
    } else if (global.workspace_manager.layout_rows == 1) {
        return Meta.MotionDirection.RIGHT;
    // Unknown
    } else { 
        // ...
    }
}

The above implementation works on my machine (Gnome shell 3.38.3 on Arch), but I don't know how to treat another layouts. Besides, that extension is being removed and horizontal will be the default layout. Maybe there is or will be a better way to do this.