[Seaside] creating respons to feed into pdfcreator

Boris Popov, DeepCove Labs boris at deepcovelabs.com
Mon Jan 10 09:12:01 UTC 2011

That code is primarily to render XHTML to a string and then feed it to PRDreactor for conversion to PDF; returning of the bytes in the response is using #respond: as expected. My latest version looks like the following at the moment,


| xhtml |
xhtml := (RenderCanvas builder)
		fullDocument: true;
		documentClass: WAHtmlDocument;
			[:root |
			root beXhtml10Strict.
			root style add: (Styles default documentForFile: 'print.css').
			root style add: 'svg {-ro-replacedelement: ''com.realobjects.xml.formatters.SVGFormatter'';}'];
		render: [:html | html render: self].
^(PDFreactorClient default convertXHTML: xhtml) bytes

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-----Original Message-----
From: seaside-bounces at lists.squeakfoundation.org [mailto:seaside-bounces at lists.squeakfoundation.org] On Behalf Of Philippe Marschall
Sent: 09 January 2011 10:09
To: avanschijndel at oxius.nl; Seaside - general discussion
Subject: Re: [Seaside] creating respons to feed into pdfcreator

2011/1/6 a van schijndel <avanschijndel at oxius.nl>
> Hi,
> I am updating my application to seaside30. To create pdf I use prince2 executable.  The htmlcontent to feed into the prince executable is created with  a construction as described in http://www.seaside.st/documentation/pdfs in the section of pdfReactor at message asPDF .
> I am trying to understand how to do this in seaside30 but have trouble to find a way to do it now the respons is generated using a notification and response is only accessible via (current)requestContext.
> original example:
> asPDF
>   | handler response |
>   handler := WARenderContinuation root: (PDFRoot for: self).
>   response := WAResponse new.
>   handler context: (WARenderingContext new session: self session; actionUrl: WAUrl new; yourself).
>   handler processRendering: response.
>   ^(PDFReactorClient default convertXHTML: response contents contents) getPDF.

That's really strange code. I would do something like this:

    self requestContext respond: [ :response |
            nextPutAll: thePdf ]

renderContentOn: html
    html anchor
        callback: [ self answerPdf ]
        with: 'donload PDF'

However that doesn't cover how the PDF is actually created. I have no idea how PDFReactor works, does it render the current or an other page as HTML send it to a server and get it back as PDF?

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