public void OnDownloadUpdated(IWebBrowser webBrowser, IBrowser browser, DownloadItem downloadItem, IDownloadItemCallback callback)
{
var hasId = downloads.TryGetValue(downloadItem.Id, out var id);
if (hasId)
{
var state = new DownloadItemState(id)
{
Completion = downloadItem.PercentComplete / 100.0,
FullPath = downloadItem.FullPath,
IsCancelled = downloadItem.IsCancelled,
IsComplete = downloadItem.IsComplete,
Url = downloadItem.Url
};
Task.Run(() => DownloadUpdated?.Invoke(state));
}
if (downloadItem.IsComplete || downloadItem.IsCancelled)
{
logger.Debug($"Download of '{downloadItem.Url}' {(downloadItem.IsComplete ? "is complete" : "was cancelled")}.");
if (callbacks.TryRemove(downloadItem.Id, out DownloadFinishedCallback finished) && finished != null)
{
Task.Run(() => finished.Invoke(downloadItem.IsComplete, downloadItem.FullPath));
}
if (hasId)
{
downloads.TryRemove(downloadItem.Id, out _);
}
}
}
public DownloadItemStateChangedEventArgs(DownloadItem item, DownloadItemState oldState, DownloadItemState newState, Exception ex)
{
DownloadItem = item;
OldState = oldState;
NewState = newState;
Exception = ex;
}
public void Update(DownloadItemState state)
{
ItemName.Text = Uri.TryCreate(state.Url, UriKind.Absolute, out var uri) ? Path.GetFileName(uri.AbsolutePath) : state.Url;
Progress.Value = state.Completion * 100;
Status.Text = $"{text.Get(TextKey.BrowserWindow_Downloading)} ({state.Completion * 100}%)";
if (File.Exists(state.FullPath))
{
ItemName.Text = Path.GetFileName(state.FullPath);
Icon.Content = new Image {
Source = IconLoader.LoadIconFor(new FileInfo(state.FullPath))
};
}
if (state.IsCancelled)
{
Progress.Visibility = System.Windows.Visibility.Collapsed;
Status.Text = text.Get(TextKey.BrowserWindow_DownloadCancelled);
}
else if (state.IsComplete)
{
Progress.Visibility = System.Windows.Visibility.Collapsed;
Status.Text = text.Get(TextKey.BrowserWindow_DownloadComplete);
}
}
private DownloadItem(string url, DownloadItemState state, string referer)
{
if (!Uri.TryCreate(url, UriKind.Absolute, out _uri))
{
throw new ArgumentException("Invalid url: {0}".FormatWith(url));
}
_state = state;
if (!IsReady && !IsStopped)
{
throw new ApplicationException("{0} cannot be the inital state for download item.".FormatWith(state));
}
_referer = referer;
}
private void DownloadHandler_DownloadUpdated(DownloadItemState state)
{
window.UpdateDownloadState(state);
}
public DownloadItemStateChangedEventArgs(DownloadItem item, DownloadItemState oldState, DownloadItemState newState)
{
DownloadItem = item;
OldState = oldState;
NewState = newState;
}
protected virtual void OnStateChanged(DownloadItem item, DownloadItemState oldState, DownloadItemState newState)
{
StateChanged?.Invoke(this, new DownloadItemStateChangedEventArgs(item, oldState, newState));
}
public DownloadItem(string url, string referer, string path,
DownloadItemState state = DownloadItemState.Queued) : this(url, state, referer)
{
FilePath = path;
}
private void DownloadHandler_DownloadUpdated(DownloadItemState state)
{
// No downloading UI requested.
}
