BindingWebBrowser.cs

/* BindingWebBrowser.cs
 * part of Daniel's XL Toolbox NG
 * 
 * Copyright 2014-2018 Daniel Kraus
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Resources;
using System.IO;

namespace Bovender.Mvvm
{
    public static class BindingWebBrowser
    {
        #region Attached property 'Html'

        public static readonly DependencyProperty HtmlProperty =
            DependencyProperty.RegisterAttached(
                "Html",
                typeof(string),
                typeof(BindingWebBrowser),
                new UIPropertyMetadata(null, HtmlPropertyChanged));

        public static string GetHtml(DependencyObject obj)
        {
            return (string)obj.GetValue(HtmlProperty);
        }

        public static void SetHtml(DependencyObject obj, string value)
        {
            obj.SetValue(HtmlProperty, value);
        }

        public static void HtmlPropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
        {
            WebBrowser browser = o as WebBrowser;
            if (browser != null)
            {
                browser.NavigateToString(e.NewValue as string);
            }
        }

        #endregion

        #region Attached property 'Stream'

        public static readonly DependencyProperty StreamProperty =
            DependencyProperty.RegisterAttached(
                "Stream",
                typeof(Stream),
                typeof(BindingWebBrowser),
                new UIPropertyMetadata(null, StreamPropertyChanged));

        public static string GetStream(DependencyObject obj)
        {
            return (string)obj.GetValue(StreamProperty);
        }

        public static void SetStream(DependencyObject obj, string value)
        {
            obj.SetValue(StreamProperty, value);
        }

        public static void StreamPropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
        {
            WebBrowser browser = o as WebBrowser;
            if (browser != null)
            {
                Stream s = e.NewValue as Stream;
                if (s != null)
                {
                    s.Seek(0, SeekOrigin.Begin);
                    browser.NavigateToStream(s);
                }
            }
        }

        #endregion
    }
}