List Datasource Pages

$datasource = Get-Item .

$referrers = $datasource | Get-ItemReferrer
$pageOnlyReferrers = $referrers | Where-Object { $_.Name -ne '__Standard Values' } | Sort-Object -Property Name -Unique
$pageOnlyReferrers = $pageOnlyReferrers | Where-Object { $_.Paths.Path -like '/sitecore/content/{site-node}' }

if ($pageOnlyReferrers.Count -eq 0) {
    return;
}

$javascript = @"
    var list = document.getElementById("datasource-list"); 
    if (window.getComputedStyle(list).display === "block") { 
        list.style.display = "none"; 
    } 
    else { 
        list.style.display = "block"; 
    }
"@

$text = @"
<fieldset>
    <legend onclick='$javascript'>Click to view pages for this datasource</legend>
    <ul style='display: none;' id='datasource-list'>
"@

foreach ($referrer in $pageOnlyReferrers) {
    $linkAction = "scForm.postRequest('', '', '', 'item:load(id=$($referrer.Id))');"
    $text = "$text<li>$($referrer.Name): <a href='#' onclick='$linkAction'>$($referrer.Paths.Path)</a></li>"
}

$text = "$text</ul></fieldset>"

$warning = $pipelineArgs.Add()
$warning.Text = $text
$warning.HideFields = $false

List Page Datasources

$item = Get-Item .
$renderings = $item | Get-Rendering -FinalLayout

$javascript = @"
    var list = document.getElementById("datasource-list"); 
    if (window.getComputedStyle(list).display === "block") { 
        list.style.display = "none"; 
    } 
    else { 
        list.style.display = "block"; 
    }
"@

$text = @"
<fieldset>
    <legend onclick='$javascript'>Click to view datasources on this page</legend>
    <ul style="display: none;" id='datasource-list'>
"@

foreach ($rendering in $renderings) {
    if ([string]::IsNullOrEmpty($rendering.Datasource)) {
        continue
    }

    $renderingItem = Get-Item -Path "master:$($rendering.ItemId)"
    $datasource = Get-Item -Path "master:$($rendering.Datasource)"

    if ($datasource) {
        $datasourceId = $datasource.Id.ToString().Replace('{', '').Replace('}', '')
        $listItem = "<li>$($renderingItem.Name): <a href='/sitecore/shell/Applications/Content%20Editor?id=$datasourceId&fo=$datasourceId&sc_content=master'>$($datasource.Paths.Path)</a></li>"
        $text = "$text$listItem"
    }
}

$text = "$text</ul></fieldset>"

$warning = $pipelineArgs.Add()
$warning.Text = $text
$warning.HideFields = $false