Public/Show-NavigationableMenu.ps1
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############################################################################### # Simple Textbased Powershell Menu # Author : Michael Albert # E-Mail : info@michlstechblog.info # License: none, feel free to modify # usage: # Source the menu.ps1 file in your script: # . .\menu.ps1 # fShowMenu requieres 2 Parameters: # Parameter 1: [string]MenuTitle # Parameter 2: [hashtable]@{[string]"ReturnString1"=[string]"Menu Entry 1";[string]"ReturnString2"=[string]"Menu Entry 2";[string]"ReturnString3"=[string]"Menu Entry 3" # Return : Select String # For example: # fShowMenu "Choose your favorite Band" @{"sl"="Slayer";"me"="Metallica";"ex"="Exodus";"an"="Anthrax"} # ############################################################################# function Show-NavigationableMenu() { param ( [System.String]$sMenuTitle, [System.Collections.Hashtable]$hMenuEntries ) # Orginal Konsolenfarben zwischenspeichern [System.Int16]$iSavedBackgroundColor=[System.Console]::BackgroundColor [System.Int16]$iSavedForegroundColor=[System.Console]::ForegroundColor # Menu Colors # inverse fore- and backgroundcolor [System.Int16]$iMenuForeGroundColor=$iSavedForegroundColor [System.Int16]$iMenuBackGroundColor=$iSavedBackgroundColor [System.Int16]$iMenuBackGroundColorSelectedLine=$iMenuForeGroundColor [System.Int16]$iMenuForeGroundColorSelectedLine=$iMenuBackGroundColor # Alternative, colors #[System.Int16]$iMenuBackGroundColor=0 #[System.Int16]$iMenuForeGroundColor=7 #[System.Int16]$iMenuBackGroundColorSelectedLine=10 # Init [System.Int16]$iMenuStartLineAbsolute=0 [System.Int16]$iMenuLoopCount=0 [System.Int16]$iMenuSelectLine=1 [System.Int16]$iMenuEntries=$hMenuEntries.Count [Hashtable]$hMenu=@{}; [Hashtable]$hMenuHotKeyList=@{}; [Hashtable]$hMenuHotKeyListReverse=@{}; [System.Int16]$iMenuHotKeyChar=0 [System.String]$sValidChars="" [System.Console]::WriteLine(" "+$sMenuTitle) # Für die eindeutige Zuordnung Nummer -> Key $iMenuLoopCount=1 # Start Hotkeys mit "1"! $iMenuHotKeyChar=49 foreach ($sKey in $hMenuEntries.Keys){ $hMenu.Add([System.Int16]$iMenuLoopCount,[System.String]$sKey) # Hotkey zuordnung zum Menueintrag $hMenuHotKeyList.Add([System.Int16]$iMenuLoopCount,[System.Convert]::ToChar($iMenuHotKeyChar)) $hMenuHotKeyListReverse.Add([System.Convert]::ToChar($iMenuHotKeyChar),[System.Int16]$iMenuLoopCount) $sValidChars+=[System.Convert]::ToChar($iMenuHotKeyChar) $iMenuLoopCount++ $iMenuHotKeyChar++ # Weiter mit Kleinbuchstaben if($iMenuHotKeyChar -eq 58){$iMenuHotKeyChar=97} # Weiter mit Großbuchstaben elseif($iMenuHotKeyChar -eq 123){$iMenuHotKeyChar=65} # Jetzt aber ende elseif($iMenuHotKeyChar -eq 91){ Write-Error " Menu too big!" exit(99) } } # Remember Menu start [System.Int16]$iBufferFullOffset=0 $iMenuStartLineAbsolute=[System.Console]::CursorTop do{ ####### Draw Menu ####### [System.Console]::CursorTop=($iMenuStartLineAbsolute-$iBufferFullOffset) for ($iMenuLoopCount=1;$iMenuLoopCount -le $iMenuEntries;$iMenuLoopCount++){ [System.Console]::Write("`r") [System.String]$sPreMenuline="" $sPreMenuline=" "+$hMenuHotKeyList[[System.Int16]$iMenuLoopCount] $sPreMenuline+=": " if ($iMenuLoopCount -eq $iMenuSelectLine){ [System.Console]::BackgroundColor=$iMenuBackGroundColorSelectedLine [System.Console]::ForegroundColor=$iMenuForeGroundColorSelectedLine } if ($hMenuEntries.Item([System.String]$hMenu.Item($iMenuLoopCount)).Length -gt 0){ [System.Console]::Write($sPreMenuline+$hMenuEntries.Item([System.String]$hMenu.Item($iMenuLoopCount))) } else{ [System.Console]::Write($sPreMenuline+$hMenu.Item($iMenuLoopCount)) } [System.Console]::BackgroundColor=$iMenuBackGroundColor [System.Console]::ForegroundColor=$iMenuForeGroundColor [System.Console]::WriteLine("") } [System.Console]::BackgroundColor=$iMenuBackGroundColor [System.Console]::ForegroundColor=$iMenuForeGroundColor [System.Console]::Write(" Your choice: " ) if (($iMenuStartLineAbsolute+$iMenuLoopCount) -gt [System.Console]::BufferHeight){ $iBufferFullOffset=($iMenuStartLineAbsolute+$iMenuLoopCount)-[System.Console]::BufferHeight } ####### End Menu ####### ####### Read Kex from Console $oInputChar=[System.Console]::ReadKey($true) # Down Arrow? if ([System.Int16]$oInputChar.Key -eq [System.ConsoleKey]::DownArrow){ if ($iMenuSelectLine -lt $iMenuEntries){ $iMenuSelectLine++ } } # Up Arrow elseif([System.Int16]$oInputChar.Key -eq [System.ConsoleKey]::UpArrow){ if ($iMenuSelectLine -gt 1){ $iMenuSelectLine-- } } elseif([System.Char]::IsLetterOrDigit($oInputChar.KeyChar)){ [System.Console]::Write($oInputChar.KeyChar.ToString()) } [System.Console]::BackgroundColor=$iMenuBackGroundColor [System.Console]::ForegroundColor=$iMenuForeGroundColor } while(([System.Int16]$oInputChar.Key -ne [System.ConsoleKey]::Enter) -and ($sValidChars.IndexOf($oInputChar.KeyChar) -eq -1)) # reset colors [System.Console]::ForegroundColor=$iSavedForegroundColor [System.Console]::BackgroundColor=$iSavedBackgroundColor if($oInputChar.Key -eq [System.ConsoleKey]::Enter){ [System.Console]::Writeline($hMenuHotKeyList[$iMenuSelectLine]) return([System.String]$hMenu.Item($iMenuSelectLine)) } else{ [System.Console]::Writeline("") return($hMenu[$hMenuHotKeyListReverse[$oInputChar.KeyChar]]) } } |