protected override void Dispose(bool disposing)
{
if (disposing)
{
FileIcon?.Dispose();
PreviewImage?.Dispose();
}
base.Dispose(disposing);
}
/// <summary>
/// Returns the string name of the supplied icon.
/// </summary>
/// <param name="icon">
/// A <see cref="GLib.Icon"/>
/// </param>
/// <returns>
/// A <see cref="System.String"/>
/// </returns>
public string IconFromGIcon(GLib.Icon icon)
{
string name = "";
if (icon is ThemedIcon)
{
ThemedIcon themeIcon = new ThemedIcon(icon.Handle);
// if the icon exists in the theme, this will return the relevent icon
if (themeIcon.Names.Any())
{
name = themeIcon.Names.FirstOrDefault(n => IconTheme.Default.HasIcon(n));
}
themeIcon.Dispose();
}
else if (icon is FileIcon)
{
// in some cases, devices provide their own icon. This will use the device icon.
FileIcon iconFile = new FileIcon(icon.Handle);
name = iconFile.File.Path;
iconFile.Dispose();
}
return(name);
}
/// <summary>
/// Shows a native Gtk notification. For best results, you shows initialize a
/// <seealso cref="GLib.Application"/>
/// with the correct application id. Also, gnome-shell requires a desktop file
/// whose base name matches the application id for the notification to show.
/// </summary>
/// <param name="toast">ToastNotification as created in the native library.</param>
/// <returns></returns>
public static async Task Show(this ToastNotification toast)
{
var notification = new Notification(toast.Title);
notification.Body = toast.Message;
string path = null;
if (toast.AppLogoOverride != null)
{
var stream = await toast.AppLogoOverride.GetStreamAsync().ConfigureAwait(false);
path = Path.GetTempFileName();
var fileStream = File.OpenWrite(path);
stream.CopyTo(fileStream);
stream.Dispose();
fileStream.Dispose();
var fileInfo = FileFactory.NewForPath(path);
FileIcon icon = new FileIcon(fileInfo);
notification.Icon = icon;
icon.Dispose();
}
Guid id;
if (ids.ContainsKey(toast))
{
id = ids[toast];
}
else
{
id = Guid.NewGuid();
ids.Add(toast, id);
notifications.Add(id, toast);
}
await InvokeAsync(() =>
{
if (Application.Default == null)
{
var application = new Application(Windows.ApplicationModel.Package.Current.DisplayName + ".Skia.Gtk", ApplicationFlags.None);
application.Register(null);
}
Application.Default.SendNotification(id.ToString(), notification);
notification.Dispose();
// Gtk notifications do not automatically close, so we can decide the time here.
var waitTime = toast.ToastDuration == ToastDuration.Short ? 7000 : 25000;
Thread.Sleep(waitTime);
Application.Default.WithdrawNotification(id.ToString());
// Gnome uses this temporary file to display the icon. We must not delete this file
// before the notification withdraws.
if (path != null)
{
File.Delete(path);
}
}).ConfigureAwait(false);
}