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VideoBrowser/Controls/CefSharpBrowser/GlobalBrowserData.cs

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+namespace VideoBrowser.Controls.CefSharpBrowser
+{
+    using System;
+    using System.Collections.Generic;
+    using System.Collections.ObjectModel;
+    using System.ComponentModel;
+    using System.IO;
+    using System.Linq;
+    using VideoBrowser.Controls.CefSharpBrowser.Handlers;
+    using VideoBrowser.Controls.CefSharpBrowser.Models;
+    using VideoBrowser.Controls.CefSharpBrowser.ViewModels;
+    using VideoBrowser.Extensions;
+    using VideoBrowser.ViewModels;
+
+    /// <summary>
+    /// Defines the <see cref="GlobalBrowserData" />.
+    /// All singleton instances are saved here.
+    /// </summary>
+    public class GlobalBrowserData : IDisposable
+    {
+        #region Constructors
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="GlobalBrowserData"/> class.
+        /// </summary>
+        internal GlobalBrowserData()
+        {
+            this.InterTabClient = new InterTabClient(this);
+            this.Settings = new SettingsViewModel();
+            this.Settings.PropertyChanged += this.OnSettings_PropertyChanged;
+            this.DownloadHandler = new DownloadHandler(this.DownloadItemModels) { DownloadPath = this.Settings.OutputFolder };
+        }
+
+        #endregion Constructors
+
+        #region Properties
+
+        /// <summary>
+        /// Gets the AddInButtons.
+        /// </summary>
+        public ICollection<AddInButton> AddInButtons { get; } = new ObservableCollection<AddInButton>();
+
+        /// <summary>
+        /// Gets the BrowserSettings.
+        /// </summary>
+        public BrowserSettings BrowserSettings => this.Settings.BrowserSettings;
+
+        /// <summary>
+        /// Gets the DownloadHandler.
+        /// </summary>
+        public DownloadHandler DownloadHandler { get; }
+
+        /// <summary>
+        /// Gets the DownloadItemModels.
+        /// </summary>
+        public ObservableCollection<DownloadItemModel> DownloadItemModels { get; } = new ObservableCollection<DownloadItemModel>();
+
+        /// <summary>
+        /// Gets the InterTabClient.
+        /// </summary>
+        public InterTabClient InterTabClient { get; }
+
+        /// <summary>
+        /// Gets the Settings.
+        /// </summary>
+        public SettingsViewModel Settings { get; }
+
+        /// <summary>
+        /// Gets or sets a value indicating whether IsSettingsLoaded.
+        /// </summary>
+        internal bool IsSettingsLoaded { get; set; }
+
+        /// <summary>
+        /// Gets the WindowViewModels.
+        /// </summary>
+        internal IList<MainWindowViewModel> WindowViewModels { get; } = new List<MainWindowViewModel>();
+
+        #endregion Properties
+
+        #region Methods
+
+        /// <summary>
+        /// The Dispose.
+        /// </summary>
+        public void Dispose()
+        {
+            this.Settings.PropertyChanged -= this.OnSettings_PropertyChanged;
+            this.DownloadHandler.Dispose();
+        }
+
+        /// <summary>
+        /// The GetAddInButton.
+        /// </summary>
+        /// <param name="addInType">The addInType<see cref="Type"/>.</param>
+        /// <returns>The <see cref="AddInButton"/>.</returns>
+        public AddInButton GetAddInButton(Type addInType)
+        {
+            var addIn = this.AddInButtons.FirstOrDefault(o => o.GetType() == addInType);
+            return addIn;
+        }
+
+        /// <summary>
+        /// The OnSettings_PropertyChanged.
+        /// </summary>
+        /// <param name="sender">The sender<see cref="object"/>.</param>
+        /// <param name="e">The e<see cref="PropertyChangedEventArgs"/>.</param>
+        private void OnSettings_PropertyChanged(object sender, PropertyChangedEventArgs e)
+        {
+            if (e.IsMatch(nameof(this.Settings.OutputFolder)) && Directory.Exists(this.Settings.OutputFolder))
+            {
+                this.DownloadHandler.DownloadPath = this.Settings.OutputFolder;
+            }
+        }
+
+        #endregion Methods
+    }
+}