// NOTE: EVERYTHING should be done here. We shouldn't have LoadData. We should audit everyone using this control and see if we can improve things.
// NOTE: This should also be full of delegates that run when events (such as deleting a file) are occurring.
// NOTE: There should be a way to tell if a file was uploaded.
void ControlTreeDataLoader.LoadData()
{
if (fileCollectionId != null)
{
file = BlobFileOps.GetFirstFileFromCollection(fileCollectionId.Value);
}
var controlStack = ControlStack.Create(true);
if (file != null)
{
var download = new PostBackButton(
PostBack.CreateFull(
id: PostBack.GetCompositeId("ewfFile", file.FileId.ToString()),
actionGetter: () => {
// Refresh the file here in case a new one was uploaded on the same post-back.
return
(new PostBackAction(
new SecondaryResponse(new BlobFileResponse(BlobFileOps.GetFirstFileFromCollection(fileCollectionId.Value).FileId, () => true), false)));
}),
new TextActionControlStyle(Translation.DownloadExisting + " (" + file.FileName + ")"),
false);
controlStack.AddControls(download);
}
else if (!HideNoExistingFileMessage)
{
controlStack.AddControls(new Label {
Text = Translation.NoExistingFile
});
}
uploadedFile = new EwfFileUpload();
if (file != null)
{
uploadedFile.SetInitialDisplay(false);
var replaceExistingFileLink = new ToggleButton(
uploadedFile.ToSingleElementArray(),
new TextActionControlStyle(Translation.ClickHereToReplaceExistingFile))
{
AlternateText = ""
};
controlStack.AddControls(replaceExistingFileLink);
}
controlStack.AddControls(uploadedFile);
var thumbnailControl = BlobFileOps.GetThumbnailControl(file, ThumbnailResourceInfoCreator);
if (thumbnailControl != null)
{
Controls.Add(thumbnailControl);
}
Controls.Add(controlStack);
}
private void addFileRow(DynamicTable table, BlobFile file, ActionPostBack deletePb, List <Func <bool> > deleteModMethods)
{
var cells = new List <EwfTableCell>();
var thumbnailControl = BlobFileOps.GetThumbnailControl(file, ThumbnailResourceInfoCreator);
if (thumbnailControl != null)
{
cells.Add(thumbnailControl);
}
var fileIsUnread = fileIdsMarkedAsRead != null && !fileIdsMarkedAsRead.Contains(file.FileId);
cells.Add(
new PostBackButton(
PostBack.CreateFull(
id: PostBack.GetCompositeId(postBackIdBase, file.FileId.ToString()),
firstModificationMethod: () => {
if (fileIsUnread && markFileAsReadMethod != null)
{
markFileAsReadMethod(file.FileId);
}
},
actionGetter: () => new PostBackAction(new SecondaryResponse(new BlobFileResponse(file.FileId, () => true), false))),
new TextActionControlStyle(file.FileName),
false)
{
ToolTip = file.FileName
});
cells.Add(file.UploadedDate.ToDayMonthYearString(false));
cells.Add((fileIsUnread ? "New!" : "").ToCell(new TableCellSetup(classes: "ewfNewness".ToSingleElementArray())));
var delete = false;
var deleteCheckBox =
FormItem.Create(
"",
new EwfCheckBox(false, postBack: deletePb),
validationGetter: control => new EwfValidation((pbv, v) => { delete = control.IsCheckedInPostBack(pbv); }, deletePb)).ToControl();
cells.Add(ReadOnly ? null : deleteCheckBox);
deleteModMethods.Add(
() => {
if (!delete)
{
return(false);
}
BlobFileOps.SystemProvider.DeleteFile(file.FileId);
return(true);
});
table.AddRow(cells.ToArray());
}
public BlobFileManager(int?fileCollectionId)
{
this.fileCollectionId = fileCollectionId;
if (fileCollectionId != null)
{
file = BlobFileOps.GetFirstFileFromCollection(fileCollectionId.Value);
}
var controlStack = ControlStack.Create(true);
if (file != null)
{
var download = new PostBackButton(
new TextActionControlStyle(Translation.DownloadExisting + " (" + file.FileName + ")"),
usesSubmitBehavior: false,
postBack: PostBack.CreateFull(
id: PostBack.GetCompositeId("ewfFile", file.FileId.ToString()),
actionGetter: () => {
// Refresh the file here in case a new one was uploaded on the same post-back.
return
(new PostBackAction(
new SecondaryResponse(new BlobFileResponse(BlobFileOps.GetFirstFileFromCollection(fileCollectionId.Value).FileId, () => true), false)));
}));
controlStack.AddControls(download);
}
else if (!HideNoExistingFileMessage)
{
controlStack.AddControls(new Label {
Text = Translation.NoExistingFile
});
}
uploadedFile = new EwfFileUpload();
if (file != null)
{
uploadedFile.SetInitialDisplay(false);
var replaceExistingFileLink = new ToggleButton(
uploadedFile.ToCollection(),
new TextActionControlStyle(Translation.ClickHereToReplaceExistingFile),
false,
(postBackValue, validator) => { })
{
AlternateText = ""
};
controlStack.AddControls(replaceExistingFileLink);
}
controlStack.AddControls(uploadedFile);
this.AddControlsReturnThis(BlobFileOps.GetThumbnailControl(file, ThumbnailResourceInfoCreator));
Controls.Add(controlStack);
}
/// <summary>
/// Returns null if the file is null, the file is not an image, or there is no thumbnail resource info creator.
/// </summary>
internal static IEnumerable <Control> GetThumbnailControl(BlobFile file, Func <decimal, ResourceInfo> thumbnailResourceInfoCreator)
{
// NOTE: We'd like to check here whether the file is a renderable image or not. But we can't because we don't have the file contents.
// So, we'll have to make sure that all ThumbnailPageInfoCreators provide a page that knows how to handle NEF files (ideally we'd want
// it to behave as if there was no thumbnail at all if there is an unrenderable image file).
// The only alternative to this that I can think of is creating a new file table field called "IsRenderable" that we store when
// we first save the image.
if (file == null || !ContentTypes.IsImageType(file.ContentType) || thumbnailResourceInfoCreator == null)
{
return(Enumerable.Empty <Control>());
}
return(new EwfImage(new ImageSetup(null, sizesToAvailableWidth: true), thumbnailResourceInfoCreator(file.FileId)).ToCollection().GetControls());
}
// NOTE: EVERYTHING should be done here. We shouldn't have LoadData. We should audit everyone using this control and see if we can improve things.
// NOTE: This should also be full of delegates that run when events (such as deleting a file) are occurring.
// NOTE: There should be a way to tell if a file was uploaded.
void ControlTreeDataLoader.LoadData()
{
if( fileCollectionId != null )
file = BlobFileOps.GetFirstFileFromCollection( fileCollectionId.Value );
var controlStack = ControlStack.Create( true );
if( file != null ) {
var download = new PostBackButton(
PostBack.CreateFull(
id: PostBack.GetCompositeId( "ewfFile", file.FileId.ToString() ),
actionGetter: () => {
// Refresh the file here in case a new one was uploaded on the same post-back.
return
new PostBackAction(
new SecondaryResponse( new BlobFileResponse( BlobFileOps.GetFirstFileFromCollection( fileCollectionId.Value ).FileId, () => true ), false ) );
} ),
new TextActionControlStyle( Translation.DownloadExisting + " (" + file.FileName + ")" ),
false );
controlStack.AddControls( download );
}
else if( !HideNoExistingFileMessage )
controlStack.AddControls( new Label { Text = Translation.NoExistingFile } );
uploadedFile = new EwfFileUpload();
if( file != null ) {
uploadedFile.SetInitialDisplay( false );
var replaceExistingFileLink = new ToggleButton(
uploadedFile.ToSingleElementArray(),
new TextActionControlStyle( Translation.ClickHereToReplaceExistingFile ) ) { AlternateText = "" };
controlStack.AddControls( replaceExistingFileLink );
}
controlStack.AddControls( uploadedFile );
var thumbnailControl = BlobFileOps.GetThumbnailControl( file, ThumbnailResourceInfoCreator );
if( thumbnailControl != null )
Controls.Add( thumbnailControl );
Controls.Add( controlStack );
}
private void addFileRow( DynamicTable table, BlobFile file, ActionPostBack deletePb, List<Func<bool>> deleteModMethods )
{
var cells = new List<EwfTableCell>();
var thumbnailControl = BlobFileOps.GetThumbnailControl( file, ThumbnailResourceInfoCreator );
if( thumbnailControl != null )
cells.Add( thumbnailControl );
var fileIsUnread = fileIdsMarkedAsRead != null && !fileIdsMarkedAsRead.Contains( file.FileId );
cells.Add(
new PostBackButton(
PostBack.CreateFull(
id: PostBack.GetCompositeId( postBackIdBase, file.FileId.ToString() ),
firstModificationMethod: () => {
if( fileIsUnread && markFileAsReadMethod != null )
markFileAsReadMethod( file.FileId );
},
actionGetter: () => new PostBackAction( new SecondaryResponse( new BlobFileResponse( file.FileId, () => true ), false ) ) ),
new TextActionControlStyle( file.FileName ),
false ) { ToolTip = file.FileName } );
cells.Add( file.UploadedDate.ToDayMonthYearString( false ) );
cells.Add( ( fileIsUnread ? "New!" : "" ).ToCell( new TableCellSetup( classes: "ewfNewness".ToSingleElementArray() ) ) );
var delete = false;
var deleteCheckBox =
FormItem.Create(
"",
new EwfCheckBox( false, postBack: deletePb ),
validationGetter: control => new EwfValidation( ( pbv, v ) => { delete = control.IsCheckedInPostBack( pbv ); }, deletePb ) ).ToControl();
cells.Add( ReadOnly ? null : deleteCheckBox );
deleteModMethods.Add(
() => {
if( !delete )
return false;
BlobFileOps.SystemProvider.DeleteFile( file.FileId );
return true;
} );
table.AddRow( cells.ToArray() );
}
/// <summary>
/// Returns null if the file is null, the file is not an image, or there is no thumbnail resource info creator.
/// </summary>
internal static Control GetThumbnailControl( BlobFile file, Func<decimal, ResourceInfo> thumbnailResourceInfoCreator )
{
// NOTE: We'd like to check here whether the file is a renderable image or not. But we can't because we don't have the file contents.
// So, we'll have to make sure that all ThumbnailPageInfoCreators provide a page that knows how to handle NEF files (ideally we'd want
// it to behave as if there was no thumbnail at all if there is an unrenderable image file).
// The only alternative to this that I can think of is creating a new file table field called "IsRenderable" that we store when
// we first save the image.
if( file == null || !ContentTypes.IsImageType( file.ContentType ) || thumbnailResourceInfoCreator == null )
return null;
return new EwfImage( thumbnailResourceInfoCreator( file.FileId ).GetUrl() ) { SizesToAvailableWidth = true };
}
/// <summary>
/// Creates a BLOB-file response.
/// </summary>
/// <param name="fileId">The ID of the BLOB file.</param>
/// <param name="processAsAttachmentGetter">A function that gets whether you want the response to be processed as an attachment. Return true if you want
/// this behavior; otherwise return false or do not pass a function.</param>
/// <param name="forcedImageWidthGetter">A function that gets the width in pixels to which the specified file should be scaled, while maintaining its aspect
/// ratio. The file must be an image. Pass null or return null if the file is not an image or you do not want scaling.</param>
public BlobFileResponse( int fileId, Func<bool> processAsAttachmentGetter, Func<int?> forcedImageWidthGetter = null )
{
file = BlobFileOps.SystemProvider.GetFile( fileId );
processAsAttachment = new Lazy<bool>( processAsAttachmentGetter ?? ( () => false ) );
forcedImageWidth = new Lazy<int?>( forcedImageWidthGetter ?? ( () => null ) );
}
