winutil/functions/private/Initialize-InstallAppEntry.ps1

function Initialize-InstallAppEntry {
    <#
        .SYNOPSIS
            Creates the app entry to be placed on the install tab for a given app
            Used to as part of the Install Tab UI generation
        .PARAMETER TargetElement
            The Element into which the Apps should be placed
        .PARAMETER appKey
            The Key of the app inside the $sync.configs.applicationsHashtable
    #>
        param(
            [Windows.Controls.WrapPanel]$TargetElement,
            $appKey
        )

        $app = $sync.configs.applicationsHashtable.$appKey

        # Create the outer Border for the application type
        $border = New-Object Windows.Controls.Border
        $border.Style = $sync.Form.Resources.AppEntryBorderStyle
        $border.Tag = $appKey
        $border.ToolTip = $app.description
        $border.Add_MouseLeftButtonUp({
            # Resolve through $sync because the border's child is a layout Grid for FOSS entries
            $childCheckbox = $sync.$($this.Tag)
            $childCheckbox.IsChecked = -not $childCheckbox.IsChecked
        })
        $border.Add_MouseEnter({
            if (($sync.$($this.Tag).IsChecked) -eq $false) {
                $this.SetResourceReference([Windows.Controls.Control]::BackgroundProperty, "AppInstallHighlightedColor")
            }
        })
        $border.Add_MouseLeave({
            if (($sync.$($this.Tag).IsChecked) -eq $false) {
                $this.SetResourceReference([Windows.Controls.Control]::BackgroundProperty, "AppInstallUnselectedColor")
            }
        })
        $border.Add_MouseRightButtonUp({
            # Store the selected app in a global variable so it can be used in the popup
            $sync.appPopupSelectedApp = $this.Tag
            # Set the popup position to the current mouse position
            $sync.appPopup.PlacementTarget = $this
            $sync.appPopup.IsOpen = $true
        })

        $checkBox = New-Object Windows.Controls.CheckBox
        # Sanitize the name for WPF
        $checkBox.Name = $appKey -replace '-', '_'
        # Store the original appKey in Tag
        $checkBox.Tag = $appKey
        $checkbox.Style = $sync.Form.Resources.AppEntryCheckboxStyle
        # The checkbox sits inside the entry layout Grid, so the border is one level further up
        $checkbox.Add_Checked({
            Invoke-WPFSelectedCheckboxesUpdate -type "Add" -checkboxName $this.Tag
            $borderElement = $this.Parent.Parent
            $borderElement.SetResourceReference([Windows.Controls.Control]::BackgroundProperty, "AppInstallSelectedColor")
        })

        $checkbox.Add_Unchecked({
            Invoke-WPFSelectedCheckboxesUpdate -type "Remove" -checkboxName $this.Tag
            $borderElement = $this.Parent.Parent
            $borderElement.SetResourceReference([Windows.Controls.Control]::BackgroundProperty, "AppInstallUnselectedColor")
        })

        $contentPanel = New-Object Windows.Controls.StackPanel
        $contentPanel.Orientation = "Horizontal"
        $contentPanel.VerticalAlignment = [Windows.VerticalAlignment]::Center

        $icon = New-Object Windows.Controls.Grid
        $icon.SetResourceReference([Windows.FrameworkElement]::WidthProperty, "AppEntryIconSize")
        $icon.SetResourceReference([Windows.FrameworkElement]::HeightProperty, "AppEntryIconSize")
        $icon.Margin = New-Object Windows.Thickness(0, 0, 8, 0)
        $fallback = New-Object Windows.Controls.TextBlock
        $fallback.Text = $app.content.TrimStart(".").Substring(0, 1).ToUpper()
        $fallback.FontWeight = "Bold"; $fallback.HorizontalAlignment = "Center"; $fallback.VerticalAlignment = "Center"
        if ($app.link) { $fallback.Visibility = "Collapsed" }
        $fallback.SetResourceReference([Windows.Controls.TextBlock]::FontSizeProperty, "AppEntryFontSize")
        $fallback.SetResourceReference([Windows.Controls.TextBlock]::ForegroundProperty, "ToggleButtonOnColor")
        [void]$icon.Children.Add($fallback)
        if ($app.link) {
            $logo = New-Object Windows.Controls.Image
            $logo.Stretch = [Windows.Media.Stretch]::Uniform
            $logo.Source = "https://www.google.com/s2/favicons?sz=64&domain_url=$([uri]::EscapeDataString($app.link))"
            $logo.Add_ImageFailed({ $this.Visibility = "Collapsed"; $this.Parent.Children[0].Visibility = "Visible" })
            [void]$icon.Children.Add($logo)
        }
        [void]$contentPanel.Children.Add($icon)

        # Create the TextBlock for the application name
        $appName = New-Object Windows.Controls.TextBlock
        $appName.Style = $sync.Form.Resources.AppEntryNameStyle
        $appName.Text = $app.content
        [void]$contentPanel.Children.Add($appName)
        $checkBox.Content = $contentPanel

        # Add accessibility properties to make the elements screen reader friendly
        $checkBox.SetValue([Windows.Automation.AutomationProperties]::NameProperty, $app.content)
        $border.SetValue([Windows.Automation.AutomationProperties]::NameProperty, $app.content)

        # Keep the same layout for every entry so the checkbox handlers can reach the border
        $entryLayout = New-Object Windows.Controls.Grid
        [void]$entryLayout.Children.Add($checkBox)

        # Mark FOSS apps with a corner badge, bled into the border padding so it sits on the edge
        if ($app.foss -eq $true) {
            $fossBadge = New-WinUtilFossBadge
            $fossBadge.HorizontalAlignment = "Right"
            $fossBadge.VerticalAlignment = "Top"
            $fossBadge.Margin = New-Object Windows.Thickness(0, -4, -6, 0)

            [void]$entryLayout.Children.Add($fossBadge)
        }
        $border.Child = $entryLayout
        if ($sync.selectedApps -contains $appKey) {
            $checkBox.IsChecked = $true
        }
        # Add the border to the corresponding Category
        $TargetElement.Children.Add($border) | Out-Null
        return $checkbox
    }