Cmdlet to show object tree in HtmlView

readme.md

Summary

This Cmdlet show object tree HtmlView by using LINQPad HTML Writer.

Prerequisite

This Cmdlet use LINQPad.exe http://www.linqpad.net/

Usage

Get-WinEvent Application -MaxEvents 10  | Out-HtmlView
Get-Command  Get-Help | Out-HtmlView -Depth 10

Out-HtmlView.ps1

#TODO:support for non serializable object(example:PSCustomObject)
function Out-HtmlView
{
[CmdletBinding()]
param(
    [Parameter()]
    [int]$Depth = 2,
    [Parameter(Mandatory,ValueFromPipeLine)]
    $InputObject
)
    begin
    {
        $ErrorActionPreference = "Stop"
        #Load LinqPad assembly
        $exePath = Join-Path ${env:ProgramFiles(x86)} "LINQPad4\LINQPad.exe"  -Resolve
        [Reflection.Assembly]::LoadFile($exePath) > $null

        #Load WPF assembly for Powershell.exe
    	Add-Type -AssemblyName PresentationFramework

        #Create LINQPad HTML Writer
        $writer = [LINQPad.Util]::CreateXhtmlWriter($false)

        #Create WPF Window object
        $xaml = @"
        <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
            <Grid>
                <WebBrowser x:Name="Browser"/>
            </Grid>
        </Window>
"@
        $window = [Windows.Markup.XamlReader]::Parse($xaml)
        $window.Topmost = $True  
        $browser = $Window.FindName("Browser")
    }
    process
    {
        #Need to use foreach to support -InputObject parameter
        foreach($item in $InputObject)
        {
            #if(($item -is [PSObject]) -and ($item.PSObject.BaseObject -ne $null))
            #{
            #    $item = $item.PSObject.BaseObject  #Unwrap object
            #}
            $writer.WriteDepth($item,$Depth)
        }
    }
    end
    {
        try{
            #Write-Host ("FormattingTime: {0} [ms]" -f $writer.FormattingTime.TotalMilliSeconds)
            $html = $writer.ToString()
            $writer.Dispose()

            $browser.NavigateToString($html)

            #Use Dispatcher.InvokeAsync to avoid problem<https://gist.github.com/altrive/6227237>
            $async = $window.Dispatcher.InvokeAsync({
                $window.ShowDialog() | Out-Null
            })
            $async.Wait() | Out-Null
        }
        catch{
            Write-Error $_.Exception
        }
        finally{
            if($browser -ne $null){
                $browser.Dispose()
            }
            if($window -ne $null){
                $window.Close()
            }
        }
    }
}