Gumby.DirHistory.psm1
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using module Gumby.ListBox using module Gumby.Window # an IEnumerable implementation as required by ListBox, but treated here as a stack $dirHistory = [System.Collections.ArrayList]::new(<# history size #> 30) <# .SYNOPSIS Adds an item to the directory history. .PARAMETER Directory Item to add to the directory history. #> function DirHistoryPush($Directory) { $index = $dirHistory.IndexOf($Directory) if ($index -lt 0) { if ($dirHistory.Count -eq ($dirHistory.Capacity - 1)) { # we'd overflow the max size $dirHistory.RemoveAt($dirHistory.Count - 1) } $dirHistory.Insert(0, $Directory) } elseif ($index -ne 0) { # directory is already in the history, but not at the top of the stack $dirHistory[$index] = $dirHistory[0] $dirHistory[0] = $Directory } } <# .SYNOPSIS Prompts the user to select an item from the directory history and makes it the current directory. #> function DirHistorySelect() { $horizontalPercent = 0.5 $verticalPercent = 0.5 $width = [console]::WindowWidth * $horizontalPercent $left = [int](([console]::WindowWidth - $width) / 2) $height = [console]::WindowHeight * $verticalPercent $top = [int](([console]::WindowHeight - $height) / 2) $lb = [ListBox]::new($dirHistory, ([StringLBItem]), $left, $top, $width, $height, ([console]::BackgroundColor), ([console]::ForegroundColor)) $lb.Title = 'Directory History' if (($lb.Run() -eq [WindowResult]::OK) -and ($lb.SelectedIndex() -lt $lb.ItemCount())) { Set-Location $lb.SelectedItem().Value() } } |