// Copyright (c) Microsoft Corporation. All rights reserved. using System; using System.Windows; namespace Microsoft.WindowsAPICodePack.Taskbar { internal class TaskbarWindow : IDisposable { internal TabbedThumbnailProxyWindow TabbedThumbnailProxyWindow { get; set; } internal ThumbnailToolbarProxyWindow ThumbnailToolbarProxyWindow { get; set; } internal bool EnableTabbedThumbnails { get; set; } internal bool EnableThumbnailToolbars { get; set; } internal IntPtr UserWindowHandle { get; set; } internal UIElement WindowsControl { get; set; } private TabbedThumbnail tabbedThumbnailPreview = null; internal TabbedThumbnail TabbedThumbnail { get { return tabbedThumbnailPreview; } set { if (tabbedThumbnailPreview == null) { TabbedThumbnailProxyWindow = new TabbedThumbnailProxyWindow(value); tabbedThumbnailPreview = value; } else throw new InvalidOperationException("Value is already set. It cannot be set more than once."); } } private ThumbnailToolbarButton[] thumbnailButtons; internal ThumbnailToolbarButton[] ThumbnailButtons { get { return thumbnailButtons; } set { thumbnailButtons = value; // Set the window handle on the buttons (for future updates) Array.ForEach(thumbnailButtons, new Action<ThumbnailToolbarButton>(UpdateHandle)); } } private void UpdateHandle(ThumbnailToolbarButton button) { button.WindowHandle = WindowToTellTaskbarAbout; button.AddedToTaskbar = false; } internal IntPtr WindowToTellTaskbarAbout { get { if (EnableThumbnailToolbars && !EnableTabbedThumbnails && ThumbnailToolbarProxyWindow != null) return ThumbnailToolbarProxyWindow.WindowToTellTaskbarAbout; else if (!EnableThumbnailToolbars && EnableTabbedThumbnails && TabbedThumbnailProxyWindow != null) return TabbedThumbnailProxyWindow.WindowToTellTaskbarAbout; else if (EnableTabbedThumbnails && EnableThumbnailToolbars && TabbedThumbnailProxyWindow != null) return TabbedThumbnailProxyWindow.WindowToTellTaskbarAbout; else throw new InvalidOperationException(); } } internal string Title { set { if (TabbedThumbnailProxyWindow != null) TabbedThumbnailProxyWindow.Text = value; else throw new InvalidOperationException(); } } internal TaskbarWindow(IntPtr userWindowHandle, params ThumbnailToolbarButton[] buttons) { if (userWindowHandle == IntPtr.Zero) throw new ArgumentException("userWindowHandle"); if (buttons == null || buttons.Length == 0) throw new ArgumentException("buttons"); // Create our proxy window ThumbnailToolbarProxyWindow = new ThumbnailToolbarProxyWindow(userWindowHandle, buttons); ThumbnailToolbarProxyWindow.TaskbarWindow = this; // Set our current state EnableThumbnailToolbars = true; EnableTabbedThumbnails = false; // this.ThumbnailButtons = buttons; UserWindowHandle = userWindowHandle; WindowsControl = null; } internal TaskbarWindow(System.Windows.UIElement windowsControl, params ThumbnailToolbarButton[] buttons) { if (windowsControl == null) throw new ArgumentNullException("windowsControl"); if (buttons == null || buttons.Length == 0) throw new ArgumentException("buttons"); // Create our proxy window ThumbnailToolbarProxyWindow = new ThumbnailToolbarProxyWindow(windowsControl, buttons); ThumbnailToolbarProxyWindow.TaskbarWindow = this; // Set our current state EnableThumbnailToolbars = true; EnableTabbedThumbnails = false; this.ThumbnailButtons = buttons; UserWindowHandle = IntPtr.Zero; WindowsControl = windowsControl; } internal TaskbarWindow(TabbedThumbnail preview) { if (preview == null) throw new ArgumentException("preview"); // Create our proxy window TabbedThumbnailProxyWindow = new TabbedThumbnailProxyWindow(preview); // set our current state EnableThumbnailToolbars = false; EnableTabbedThumbnails = true; // UserWindowHandle = preview.WindowHandle; WindowsControl = preview.WindowsControl; TabbedThumbnail = preview; } #region IDisposable Members /// <summary> /// /// </summary> ~TaskbarWindow() { Dispose(false); } /// <summary> /// Release the native objects. /// </summary> public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } public void Dispose(bool disposing) { if (disposing) { // Dispose managed resources if (tabbedThumbnailPreview != null) tabbedThumbnailPreview.Dispose(); tabbedThumbnailPreview = null; if (ThumbnailToolbarProxyWindow != null) ThumbnailToolbarProxyWindow.Dispose(); ThumbnailToolbarProxyWindow = null; if (TabbedThumbnailProxyWindow != null) TabbedThumbnailProxyWindow.Dispose(); TabbedThumbnailProxyWindow = null; // Don't dispose the thumbnail buttons // as they might be used in another window. // Setting them to null will indicate we don't need use anymore. thumbnailButtons = null; } } #endregion } }
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