PSReadLine2.2のPredictionViewStyleをCtrl+rで切り替えていい感じに使う

SwitchPredictionView.ps1

Set-PSReadLineOption -PredictionSource History -PredictionViewStyle InlineView
Set-PSReadLineKeyHandler -Key "Ctrl+f" -Function ForwardWord

function Switch-PredictionView()
{
    if ((Get-PSReadLineOption).PredictionViewStyle -eq "InlineView") 
    {
        Set-PSReadLineOption -PredictionViewStyle ListView
        Set-PSReadLineKeyHandler -Key "Ctrl+f" -Function HistorySearchForward
        Set-PSReadLineKeyHandler -Key "Ctrl+b" -Function HistorySearchBackward
    }
    else
    {
        Set-PSReadLineOption -PredictionViewStyle InlineView
        Set-PSReadLineKeyHandler -Key "Ctrl+f" -Function ForwardWord
    }
}
Set-PSReadLineKeyHandler -Chord "Ctrl+r" -ScriptBlock { Switch-PredictionView }