Until now, the pptx writer only supported four slide layouts: “Title
Slide” (used for the automatically generated metadata slide), “Section
Header” (used for headings above the slide level), “Two Column” (used
when there’s a columns div containing at least two column divs), and
“Title and Content” (used for all other slides).
This commit adds support for three more layouts: Comparison, Content
with Caption, and Blank.
- Support “Comparison” slide layout
This layout is used when a slide contains at least two columns, at
least one of which contains some text followed by some non-text (e.g.
an image or table). The text in each column is inserted into the
“body” placeholder for that column, and the non-text is inserted into
the ObjType placeholder. Any extra content after the non-text is
overlaid on top of the preceding content, rather than dropping it
completely (as currently happens for the two-column layout).
+ Accept straightforward test changes
Adding the new layout means the “-deleted-layouts” tests have an
additional layout added to the master and master rels.
+ Add new tests for the comparison layout
+ Add new tests to pandoc.cabal
- Support “Content with Caption” slide layout
This layout is used when a slide’s body contains some text, followed by
non-text (e.g. and image or a table). Before now, in this case the image
or table would break onto a new slide: to get that output again, users
can add a horizontal rule before the image or table.
+ Accept straightforward tests
The “-deleted-layouts” tests all have an extra layout and relationship
in the master for the Content with Caption layout.
+ Accept remove-empty-slides test
Empty slides are still removed, but the Content with Caption layout is
now used.
+ Change slide-level-0/h1-h2-with-text description
This test now triggers the content with caption layout, giving a
different (but still correct) result.
+ Add new tests for the new layout
+ Add new tests to the cabal file
- Support “Blank” slide layout
This layout is used when a slide contains only blank content (e.g.
non-breaking spaces). No content is inserted into any placeholders in
the layout.
Fixes#5097.
+ Accept straightforward test changes
Blank layout now copied over from reference doc as well, when
layouts have been deleted.
+ Add some new tests
A slide should use the blank layout if:
- It contains only speaker notes
- It contains only an empty heading with a body of nbsps
- It contains only a heading containing only nbsps
- Change ContentType -> Placeholder
This type was starting to have a constructor for each placeholder on
each slide (e.g. `ComparisonUpperLeftContent`). I’ve changed it
instead to identify a placeholder by type and index, as I think that’s
clearer and less redundant.
- Describe layout-choosing logic in manual
- Use dashes consistently rather than underscores
- Make a folder for each set of tests
- List test files explicitly (Cabal doesn’t support ** until version
2.4)
+ Add sandbox feature for readers. When this option is used,
readers and writers only have access to input files (and
other files specified directly on command line). This restriction
is enforced in the type system.
+ Filters, PDF production, custom writers are unaffected. This
feature only insulates the actual readers and writers, not
the pipeline around them in Text.Pandoc.App.
+ Note that when `--sandboxed` is specified, readers won't have
access to the resource path, nor will anything have access to
the user data directory.
+ Add module Text.Pandoc.Class.Sandbox, defining
`sandbox`. Exported via Text.Pandoc.Class. [API change]
Closes#5045.
This change has several parts:
- In Text.Pandoc.App, if the writer is docx, we fill the media
bag and attempt to convert any SVG images to PNG, adding these
to the media bag. The PNG backups have the same filenames as
the SVG images, but with an added .png extension. If the conversion
cannot be done (e.g. because rsvg-convert is not present),
a warning is omitted.
- In Text.Pandoc.Writers.Docx, we now use Word 2016's syntax for
including SVG images. If a PNG fallback is present in the media bag,
we include a link to that too.
It would be helpful if someone with an old Word version could test
to see that the documents we produce can be opened and viewed with
the PNG fallbacks. If not, then perhaps we can eliminate the
slightly complex code for producing these fallbacks.
Closes#4058.
Before this commit, the pptx writer adds a slide break before any table,
“columns” div, or paragraph starting with an image, unless the only
thing before it on the same slide is a heading at the slide level. In
that case, the item and heading are kept on the same slide, and the
heading is used as the slide title (inserted into the layout’s “title”
placeholder).
However, if the slide level is set to 0 (as was recently enabled) this
makes it impossible to have a slide with a title which contains any of
those items in its body.
This commit changes this behaviour: now if the slide level is 0, then
items will be kept with a heading of any level, if the heading’s the
only thing before the item on the same slide.
Previously we used liftIO fairly liberally. The code has
been restructured to avoid this.
A small behavior change is that pandoc will now fall back
to latin1 encoding for inputs that can't be read as UTF-8.
This is what it did previously for content fetched from
the web and not marked as to content type. It makes sense
to do the same for local files.
to any instance of PandocMonad and MonadIO.
This involves an API change, since the type of
runLua is now
(PandocMonad m, MonadIO m) => Lua a -> m (Either PandocError a)
The docx reader made a couple assumptions about how docx
containers were laid out that were not always true, with
the result that some images in documents did not get
found/extracted.
Closes#7511.
The image title (i.e. ``) was previously
ignored when writing to pptx. This commit includes it in PowerPoint's
description of the image, along with the link (which was already
included).
Fixes 7352.
Linkification of URLs in the bibliography is now done in
the citeproc library, depending on the setting of an option.
We set that option depending on the value of the metadata
field `link-bibliography` (defaulting to true, for consistency
with earlier behavior, though the new behavior includes the
CSL draft recommendation of hyperlinking the title or the whole
entry if a DOI, PMID, PMCID, or URL field is present but not
explicitly rendered).
These changes implement the following recommendations from the
draft CSL v1.0.2 spec (Appendix VI):
> The CSL syntax does not have support for configuration of links.
> However, processors should include links on bibliographic references,
> using the following rules:
> If the bibliography entry for an item renders any of the following
> identifiers, the identifier should be anchored as a link, with the
> target of the link as follows:
> - url: output as is
> - doi: prepend with "`https://doi.org/`"
> - pmid: prepend with "`https://www.ncbi.nlm.nih.gov/pubmed/`"
> - pmcid: prepend with "`https://www.ncbi.nlm.nih.gov/pmc/articles/`"
> If the identifier is rendered as a URI, include rendered URI components
> (e.g. "`https://doi.org/`") in the link anchor. Do not include any other
> affix text in the link anchor (e.g. "Available from: ", "doi: ", "PMID: ").
> If the bibliography entry for an item does not render any of
> the above identifiers, then set the anchor of the link as the item
> title. If title is not rendered, then set the anchor of the link as the
> full bibliography entry for the item. Set the target of the link as one
> of the following, in order of priority:
>
> - doi: prepend with "`https://doi.org/`"
> - pmcid: prepend with "`https://www.ncbi.nlm.nih.gov/pmc/articles/`"
> - pmid: prepend with "`https://www.ncbi.nlm.nih.gov/pubmed/`"
> - url: output as is
>
> If the item data does not include any of the above identifiers, do not
> include a link.
>
> Citation processors should include an option flag for calling
> applications to disable bibliography linking behavior.
Thanks to Benjamin Bray for getting this all working.
@undergroundquizscene - I think TemplateWarning
is apt to be confusing, since this actually doesn't have
anything to do with what we call 'templates' in pandoc.
Hence the change to a powerpoint-specific name.
