public async Task <BlobContent> ReadBlobContentAsync(long tenantId, long elementId, long blobSetId, string blobLabel)
{
CarouselElementSettings settings = await _elementRepository.ReadElementSettingsAsync(tenantId, elementId);
if (settings == null)
{
return(null);
}
CarouselSlide slide = settings.Slides.Where(s => s.BlobSetId == blobSetId).FirstOrDefault();
if (slide == null)
{
return(null);
}
long?blobId = GetBlobId(slide, blobLabel);
if (blobId == null)
{
return(null);
}
return(await _storageService.ReadBlobContentAsync(tenantId, blobId.Value, string.Format(CarouselImagePath, elementId)));
}
public async Task <IElementView <CarouselElementSettings, CarouselElementContent> > ReadElementViewAsync(long tenantId, long elementId, IPageContext context)
{
// Get element settings
CarouselElementSettings settings = await _elementRepository.ReadElementSettingsAsync(tenantId, elementId);
if (settings == null)
{
return(null);
}
// Get details of preview images
IEnumerable <long> previewImageBlobIds = settings.Slides.Select(s => s.PreviewImageBlobId);
IEnumerable <Blob> previewImageBlobs = await _storageService.ListBlobsAsync(tenantId, previewImageBlobIds);
IDictionary <long, BlobImage> previewImageBlobsById = previewImageBlobs.ToDictionary(b => b.BlobId, b => (BlobImage)b);
// Get details of pages linked to from carousel slide buttons
IEnumerable <long> buttonPageIds = settings.Slides.Where(s => s.ButtonPageId.HasValue).Select(s => s.ButtonPageId.Value).Distinct();
IEnumerable <Page> buttonPages = await _pageService.ListPagesAsync(tenantId, buttonPageIds);
IDictionary <long, string> buttonTextByPageId = settings.Slides.Where(s => s.ButtonPageId.HasValue && s.ButtonText != null).ToDictionary(s => s.ButtonPageId.Value, s => s.ButtonText);
IDictionary <long, CarouselButton> buttonsByPageId = buttonPages.ToDictionary(p => p.PageId, p => new CarouselButton {
Home = !p.ParentPageId.HasValue, Name = p.Name, PageId = p.PageId, ButtonText = buttonTextByPageId.ContainsKey(p.PageId) ? buttonTextByPageId[p.PageId] : null
});
// Construct list of slides for carousel content
IDictionary <long, CarouselContentSlide> slides = settings
.Slides
.Where(s => previewImageBlobsById.ContainsKey(s.PreviewImageBlobId))
.Select(s => new CarouselContentSlide
{
BlobSetId = s.BlobSetId,
PreviewWidth = previewImageBlobsById[s.PreviewImageBlobId].Width,
PreviewHeight = previewImageBlobsById[s.PreviewImageBlobId].Height,
Button = s.ButtonPageId.HasValue && buttonsByPageId.ContainsKey(s.ButtonPageId.Value) ? buttonsByPageId[s.ButtonPageId.Value] : null
})
.ToDictionary(s => s.BlobSetId, s => s);
// Construct element content
CarouselElementContent content = new CarouselElementContent
{
Slides = slides
};
// Return element view
return(new ElementView <CarouselElementSettings, CarouselElementContent>
{
Settings = settings,
Content = content
});
}