public HtmlThumbNailer(NavigationIsolator isolator)
{
if (_theOnlyOneAllowed != null)
{
Debug.Fail("Something tried to make a second HtmlThumbnailer; there should only be one.");
throw new ApplicationException("Something tried to make a second HtmlThumbnailer; there should only be one.");
}
_theOnlyOneAllowed = this;
_isolator = isolator;
_syncControl = new Control();
_syncControl.CreateControl();
}
public void Dispose()
{
_disposed = true;
_orders.Clear();
foreach (var browser in _browserCacheForDifferentPaperSizes)
{
browser.Value.Invoke((Action)(() =>
{
browser.Value.DocumentCompleted -= _browser_OnDocumentCompleted;
browser.Value.Dispose();
}));
}
_browserCacheForDifferentPaperSizes.Clear();
_theOnlyOneAllowed = null;
}
public HtmlThumbNailer(NavigationIsolator isolator)
{
if (_theOnlyOneAllowed != null)
{
Debug.Fail("Something tried to make a second HtmlThumbnailer; there should only be one.");
throw new ApplicationException("Something tried to make a second HtmlThumbnailer; there should only be one.");
}
_theOnlyOneAllowed = this;
_isolator = isolator;
_syncControl = new Control();
_syncControl.CreateControl();
}
public void Dispose()
{
_disposed = true;
foreach (var browser in _browserCacheForDifferentPaperSizes)
{
if (browser.Value.InvokeRequired)
{
browser.Value.Invoke((Action)(() => {
browser.Value.DocumentCompleted -= _browser_OnDocumentCompleted;
browser.Value.Dispose();
}));
}
else
{
browser.Value.DocumentCompleted -= _browser_OnDocumentCompleted;
browser.Value.Dispose();
}
}
_browserCacheForDifferentPaperSizes.Clear();
_theOnlyOneAllowed = null;
GC.SuppressFinalize(this);
}
public BookThumbNailer(HtmlThumbNailer thumbNailer)
{
_thumbnailProvider = thumbNailer;
}
public void GetThumbNailOfBookCover(Book.Book book, HtmlThumbNailer.ThumbnailOptions thumbnailOptions, Action<Image> callback, Action<Exception> errorCallback, bool async)
{
if (book is ErrorBook)
{
callback(Resources.Error70x70);
return;
}
try
{
if (book.HasFatalError) //NB: we might not know yet... we don't fully load every book just to show its thumbnail
{
callback(Resources.Error70x70);
return;
}
Image thumb;
if (book.Storage.TryGetPremadeThumbnail(thumbnailOptions.FileName, out thumb))
{
callback(thumb);
return;
}
var dom = book.GetPreviewXmlDocumentForFirstPage();
if (dom == null)
{
callback(Resources.Error70x70);
return;
}
string folderForCachingThumbnail;
folderForCachingThumbnail = book.Storage.FolderPath;
_thumbnailProvider.GetThumbnail(folderForCachingThumbnail, book.Storage.Key, dom, thumbnailOptions, callback, errorCallback, async);
}
catch (Exception err)
{
callback(Resources.Error70x70);
Debug.Fail(err.Message);
}
}
public BookThumbNailer(HtmlThumbNailer thumbNailer)
{
_thumbnailProvider = thumbNailer;
}
/// <summary>
/// Will call either 'callback' or 'errorCallback' UNLESS the thumbnail is readonly, in which case it will do neither.
/// </summary>
/// <param name="book"></param>
/// <param name="thumbnailOptions"></param>
/// <param name="callback"></param>
/// <param name="errorCallback"></param>
private void RebuildThumbNail(Book.Book book, HtmlThumbNailer.ThumbnailOptions thumbnailOptions,
Action<BookInfo, Image> callback, Action<BookInfo, Exception> errorCallback, bool async)
{
try
{
if(!book.Storage.RemoveBookThumbnail(thumbnailOptions.FileName))
{
// thumbnail is marked readonly, so just use it
Image thumb;
book.Storage.TryGetPremadeThumbnail(thumbnailOptions.FileName, out thumb);
callback(book.BookInfo, thumb);
return;
}
_thumbnailProvider.RemoveFromCache(book.Storage.Key);
thumbnailOptions.BorderStyle = (book.Type == Book.Book.BookType.Publication)
? HtmlThumbNailer.ThumbnailOptions.BorderStyles.Solid
: HtmlThumbNailer.ThumbnailOptions.BorderStyles.Dashed;
GetThumbNailOfBookCover(book, thumbnailOptions, image => callback(book.BookInfo, image),
error =>
{
//Enhance; this isn't a very satisfying time to find out, because it's only going to happen if we happen to be rebuilding the thumbnail.
//It does help in the case where things are bad, so no thumbnail was created, but by then probably the user has already had some big error.
//On the other hand, given that they have this bad book in their collection now, it's good to just remind them that it's broken and not
//keep showing green error boxes.
book.CheckForErrors();
errorCallback(book.BookInfo, error);
}, async);
}
catch(Exception error)
{
NonFatalProblem.Report(ModalIf.Alpha, PassiveIf.All, "Problem creating book thumbnail ", exception: error);
}
}
/// <summary>
/// Will make a new thumbnail (or throw) UNLESS the thumbnail is readonly, in which case it will do nothing.
/// </summary>
/// <param name="book"></param>
/// <param name="thumbnailOptions"></param>
public void RebuildThumbNailNow(Book.Book book, HtmlThumbNailer.ThumbnailOptions thumbnailOptions)
{
RebuildThumbNail(book, thumbnailOptions, (info, image) => { },
(info, ex) =>
{
throw ex;
}, false);
}
/// <summary>
/// Will call either 'callback' or 'errorCallback' UNLESS the thumbnail is readonly, in which case it will do neither.
/// </summary>
/// <param name="book"></param>
/// <param name="thumbnailOptions"></param>
/// <param name="callback"></param>
/// <param name="errorCallback"></param>
public void RebuildThumbNailAsync(Book.Book book, HtmlThumbNailer.ThumbnailOptions thumbnailOptions,
Action<BookInfo, Image> callback, Action<BookInfo, Exception> errorCallback)
{
RebuildThumbNail(book, thumbnailOptions, callback, errorCallback, true);
}
public void Setup()
{
_workFolder = new TemporaryFolder("unittest-" + _thisTestId);
_workFolderPath = _workFolder.FolderPath;
Assert.AreEqual(0,Directory.GetDirectories(_workFolderPath).Count(),"Some stuff was left over from a previous test");
Assert.AreEqual(0, Directory.GetFiles(_workFolderPath).Count(),"Some stuff was left over from a previous test");
// Todo: Make sure the S3 unit test bucket is empty.
// Todo: Make sure the parse.com unit test book table is empty
_parseClient = new BloomParseClientDouble(_thisTestId);
_htmlThumbNailer = new HtmlThumbNailer(new NavigationIsolator());
_transfer = new BookTransfer(_parseClient, new BloomS3Client(BloomS3Client.UnitTestBucketName), new BookThumbNailer(_htmlThumbNailer), new BookDownloadStartingEvent());
_transfer.BookDownLoaded += (sender, args) => _downloadedBooks.Add(args.BookDetails);
}
public void Dispose()
{
_disposed = true;
foreach (var browser in _browserCacheForDifferentPaperSizes)
{
if (browser.Value.InvokeRequired)
{
browser.Value.Invoke((Action)(() => {
browser.Value.DocumentCompleted -= _browser_OnDocumentCompleted;
browser.Value.Dispose();
}));
}
else
{
browser.Value.DocumentCompleted -= _browser_OnDocumentCompleted;
browser.Value.Dispose();
}
}
_browserCacheForDifferentPaperSizes.Clear();
_theOnlyOneAllowed = null;
GC.SuppressFinalize(this);
}
