WPF RichTextBox - 高機能でカスタマイズ可能な WYSIWYG Editor

<Syncfusion:RibbonWindow x:Class="DocumentEditor.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:DocumentEditor"
        mc:Ignorable="d"
        xmlns:Syncfusion="http://schemas.syncfusion.com/wpf"
        Title="MainWindow" Height="350" Width="525" Syncfusion:SkinStorage.VisualStyle="Office2013">
    <Grid x:Name="Root">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Syncfusion:SfRichTextRibbon x:Name="richTextRibbon" SnapsToDevicePixels="True" DataContext="{Binding ElementName=richTextBoxAdv}"/>
        <Syncfusion:SfRichTextBoxAdv x:Name="richTextBoxAdv" Grid.Row="1" LayoutType="Pages" AcceptsTab="True" AllowDrop="True">
        </Syncfusion:SfRichTextBoxAdv>
    </Grid>
</Syncfusion:RibbonWindow>

using Syncfusion.Windows.Controls.RichTextBoxAdv;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Media;
namespace RichTextEditor
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class DocumentEditorDemo : RibbonWindow
{
    public DocumentEditorDemo()
    {
        InitializeComponent();
        richTextBoxAdv.RequestNavigate += RichTextBoxAdv_RequestNavigate;
    }
    /// <summary>
    /// Handles the RequestNavigate event of the richTextBoxAdv control.
    /// </summary>
    /// <param name="obj">The source of the event.</param>
    /// <param name="args">The <see cref="Syncfusion.Windows.Controls.RichTextBoxAdv.RequestNavigateEventArgs"/> instance containing the event data.</param>
    void RichTextBoxAdv_RequestNavigate(object obj, Syncfusion.Windows.Controls.RichTextBoxAdv.RequestNavigateEventArgs args)
    {
        if (args.Hyperlink.LinkType == Syncfusion.Windows.Controls.RichTextBoxAdv.HyperlinkType.Webpage || args.Hyperlink.LinkType == Syncfusion.Windows.Controls.RichTextBoxAdv.HyperlinkType.Email)
            LaunchUri(new Uri(args.Hyperlink.NavigationLink).AbsoluteUri);
        else if (args.Hyperlink.LinkType == HyperlinkType.File && File.Exists(args.Hyperlink.NavigationLink))
            LaunchUri(args.Hyperlink.NavigationLink);
    }
    /// <summary>
    /// Launches the URI.
    /// </summary>
    /// <param name="uri">The URI.</param>
    private void LaunchUri(string navigationLink)
    {
        System.Diagnostics.Process process = new System.Diagnostics.Process();
        process.StartInfo = new System.Diagnostics.ProcessStartInfo(navigationLink) { UseShellExecute = true };
        process. Start();
    }
}
}