private async void downloadAndDisplayAllReleaseNotes(AppCastItem[] items, AppCastItem latestVersion, string initialHTML)
{
_sparkle.LogWriter.PrintMessage("Preparing to initialize release notes...");
StringBuilder sb = new StringBuilder(initialHTML);
foreach (AppCastItem castItem in items)
{
_sparkle.LogWriter.PrintMessage("Initializing release notes for {0}", castItem.Version);
// TODO: could we optimize this by doing multiple downloads at once?
var releaseNotes = await GetReleaseNotes(castItem);
sb.Append(string.Format(_separatorTemplate,
castItem.Version,
castItem.PublicationDate.ToString("D"), // was dd MMM yyyy
releaseNotes,
latestVersion.Version.Equals(castItem.Version) ? "#ABFF82" : "#AFD7FF"));
}
sb.Append("</body>");
string fullHTML = sb.ToString();
ReleaseNotesBrowser.Invoke((MethodInvoker) delegate
{
// see https://stackoverflow.com/a/15209861/3938401
ReleaseNotesBrowser.Navigate("about:blank");
ReleaseNotesBrowser.Document.OpenNew(true);
ReleaseNotesBrowser.Document.Write(fullHTML);
ReleaseNotesBrowser.DocumentText = fullHTML;
});
_sparkle.LogWriter.PrintMessage("Done initializing release notes!");
}
private async void LoadReleaseNotes(List <AppCastItem> items, bool isforallversions)
{
AppCastItem latestVersion = items.OrderByDescending(p => p.Version).FirstOrDefault();
string releaseNotes = null;
if (!isforallversions)
{
releaseNotes = await _releaseNotesGrabber.DownloadAllReleaseNotes(items, latestVersion, _cancellationToken);
}
else
{
releaseNotes = await _releaseNotesGrabber.DownloadAllReleaseNotesWithButtons(items, latestVersion, _cancellationToken);
}
ReleaseNotesBrowser.Invoke((MethodInvoker) delegate
{
// see https://stackoverflow.com/a/15209861/3938401
ReleaseNotesBrowser.ObjectForScripting = this;
ReleaseNotesBrowser.Navigate("about:blank");
ReleaseNotesBrowser.Document.OpenNew(true);
ReleaseNotesBrowser.Document.Write(releaseNotes);
ReleaseNotesBrowser.DocumentText = releaseNotes;
});
}
private void ReleaseNotesBrowser_Navigated(object sender, NavigationEventArgs e)
{
if (!_hasFinishedNavigatingToAboutBlank)
{
ReleaseNotesBrowser.NavigateToString(_notes);
_hasFinishedNavigatingToAboutBlank = true;
}
}
private void ReleaseNotesBrowser_Loaded(object sender, RoutedEventArgs e)
{
// see https://stackoverflow.com/a/15209861/3938401
ReleaseNotesBrowser.Loaded -= ReleaseNotesBrowser_Loaded;
ReleaseNotesBrowser.Dispatcher.Invoke(() =>
{
ReleaseNotesBrowser.NavigateToString("about:blank");
});
}
/// <summary>
/// Show the release notes to the end user. Release notes should be in HTML.
///
/// There is some bizarre thing where the WPF browser doesn't navigate to the release notes unless you successfully navigate to
/// about:blank first. I don't know why. I feel like this is a Terrible Bad Fix, but...it works for now...
/// </summary>
/// <param name="htmlNotes">The HTML notes to show to the end user</param>
public void ShowReleaseNotes(string htmlNotes)
{
_notes = htmlNotes;
ReleaseNotesBrowser.Dispatcher.Invoke(() =>
{
if (ReleaseNotesBrowser.IsLoaded)
{
if (_hasFinishedNavigatingToAboutBlank)
{
ReleaseNotesBrowser.NavigateToString(_notes);
}
// else will catch up when navigating to about:blank is done
}
else
{
// don't do anything until the web browser is loaded
ReleaseNotesBrowser.Loaded += ReleaseNotesBrowser_Loaded;
}
});
}