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VideoBrowser/Controls/CefSharpBrowser/ViewModels/WebBrowserHeaderedItemViewModel.cs

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+namespace VideoBrowser.Controls.CefSharpBrowser.ViewModels
+{
+    using System;
+    using System.ComponentModel;
+    using VideoBrowser.Controls.CefSharpBrowser.Views;
+    using VideoBrowser.Core;
+    using VideoBrowser.Extensions;
+    using VideoBrowser.Helpers;
+
+    /// <summary>
+    /// Defines the <see cref="WebBrowserHeaderedItemViewModel" />.
+    /// </summary>
+    public class WebBrowserHeaderedItemViewModel : TabItem
+    {
+        #region Fields
+
+        private VideoBrowserViewModel _videoBrowserViewModel;
+
+        #endregion Fields
+
+        #region Constructors
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="WebBrowserHeaderedItemViewModel"/> class.
+        /// </summary>
+        /// <param name="globalBrowserData">The globalBrowserData<see cref="GlobalBrowserData"/>.</param>
+        /// <param name="cefWindowData">The cefWindowData<see cref="CefWindowData"/>.</param>
+        /// <param name="downloadAction">The downloadAction<see cref="Action{Operation}"/>.</param>
+        internal WebBrowserHeaderedItemViewModel(GlobalBrowserData globalBrowserData, CefWindowData cefWindowData, Action<Operation> downloadAction)
+        {
+            this.VideoBrowserViewModel = new VideoBrowserViewModel(globalBrowserData, cefWindowData)
+            {
+                DownloadAction = downloadAction
+            };
+
+            this.VideoBrowserViewModel.PropertyChanged += this.OnVideoBrowserViewModel_PropertyChanged;
+            this.Title = this.VideoBrowserViewModel.Header;
+            UIThreadHelper.Invoke(() =>
+            {
+                this.VideoBrowserView = new VideoBrowserView { DataContext = this.VideoBrowserViewModel };
+                this.Content = this.VideoBrowserView;
+            });
+        }
+
+        #endregion Constructors
+
+        #region Properties
+
+        /// <summary>
+        /// Gets the VideoBrowserView.
+        /// </summary>
+        public VideoBrowserView VideoBrowserView { get; private set; }
+
+        /// <summary>
+        /// Gets the VideoBrowserViewModel.
+        /// </summary>
+        public VideoBrowserViewModel VideoBrowserViewModel { get => _videoBrowserViewModel; private set => this.Set(this.OnPropertyChanged, ref _videoBrowserViewModel, value); }
+
+        #endregion Properties
+
+        #region Methods
+
+        /// <summary>
+        /// The Dispose.
+        /// </summary>
+        /// <param name="disposing">The disposing<see cref="bool"/>.</param>
+        protected override void Dispose(bool disposing)
+        {
+            base.Dispose(disposing);
+            if (this.VideoBrowserViewModel == null)
+            {
+                return;
+            }
+
+            this.VideoBrowserViewModel.PropertyChanged -= this.OnVideoBrowserViewModel_PropertyChanged;
+            this.VideoBrowserViewModel.Dispose();
+            this.VideoBrowserViewModel = null;
+            this.VideoBrowserView.DataContext = null;
+            this.VideoBrowserView = null;
+        }
+
+        /// <summary>
+        /// The OnVideoBrowserViewModel_PropertyChanged.
+        /// </summary>
+        /// <param name="sender">The sender<see cref="object"/>.</param>
+        /// <param name="e">The e<see cref="PropertyChangedEventArgs"/>.</param>
+        private void OnVideoBrowserViewModel_PropertyChanged(object sender, PropertyChangedEventArgs e)
+        {
+            if (e.IsMatch(nameof(this.VideoBrowserViewModel.Header)))
+            {
+                this.Title = this.VideoBrowserViewModel.Header;
+            }
+        }
+
+        #endregion Methods
+    }
+}