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https://issues.apache.org/jira/browse/FOP-3153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17772564#comment-17772564
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Daniel Norberg commented on FOP-3153:
-------------------------------------
Hi,
I have also noted this problem and don't know about a workaround for your
particular issue. It would be great if these items could be fixed related to
span all blocks:
* Keep rules on span all block should apply on preceding and following
siblings, and vice versa keep rules on preceding and following siblings should
affect the span all block, I don't know of any workaround for this that work
satisfactorily.
* Spacing rules should apply on preceding and following siblings and vice
versa. For this, the workaround is to add padding.
Here is a simple FO structure which shows how we would like it to work (assume
that the simple-page-master enforces multi column layout):
{code:java}
<fo:flow>
<fo:block>
The spacing between this block and the span all-block should be 5mm due to
the spacing rule, currently does not work.
</fo:block>
<fo:block span="all" keep-with-next.within-page="always" space-before="5mm"
space-after="10mm">
THE SPAN ALL BLOCK
</fo:block>
<fo:block>
This block is kept together with the span all-block due to the keep rule,
currently does not work.
The spacing between this block and the span all-block should be 10mm due to
the spacing rule, currently does not work.
</fo:block>
</fo:flow>{code}
A "funny" thing is that the keep rule works if the following sibling also has
span = all. So this works:
{code:java}
<fo:flow>
<fo:block span="all" keep-with-next.within-page="always">
Some text
</fo:block>
<fo:block span="all">
This block is kept on the same page as the preceding span all-block.
</fo:block>
</fo:flow>{code}
I'm not sure if the latter case is actually a bug with respect to the intended
behavior but from a user point of view it would be good if FOP could work as in
my first code example.
> "Keep-with-next" condition not fullfilled when span="all" is used on a block
> ----------------------------------------------------------------------------
>
> Key: FOP-3153
> URL: https://issues.apache.org/jira/browse/FOP-3153
> Project: FOP
> Issue Type: Bug
> Components: fo/block
> Affects Versions: 2.8
> Reporter: Jorge Villar
> Priority: Major
> Attachments: 877404072.fo, editor - 2023-10-02T091356.171.pdf
>
>
> Hello,
> We have to generate a document with text in two columns, but headings need to
> extend to both columns using span="all". The problem I am facing is that the
> "keep-with-next.within-page" condition is set to "always" in all headings,
> but this condition is not respected in the generated PDF, with headings being
> at the end of the page, and the next element in the next page. Find attached
> the sample .fo file and the generated PDF document.
> If there is a workaround for this, it would be greatly appreciated to know.
> Thanks in advance.
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