One of the features of TiddlyWeb is that you can easily store binary
content (such as image data) in the Tiddler store and use it either
directly (via the url of the tiddler) or within a TiddlyWiki. If the
binary content is sufficiently short to be represented in a data uri
it is included within the generated TiddlyWiki, otherwise a link back
to the server is used.
It is the presentation of that data uri that is the question. I
believe there are several slightly different formats floating, some
I've done, some Eric has done, and presumably some others. Seems like
it would be useful for us to come up with something that we all like
and just use that.
TiddlyWeb makes a tiddler with binary content have a text field of the
full data uri of the content:
data:image/png;base64,iVBORw0K...
The idea being that this could then be paired with an extension to the
wikifier which knows how to handle data uris (e.g. in the case of a
type of image/* it would make an image tag with the entire data uri as
the src; for non-image/* it would make an href).
This feels like it has some usability issues.
Other options I've heard include:
* When producing the tiddlywiki wrap the data uri in useful HTML.
* Put only the data part of the data uri in the tiddler.text and put
the mime type and encoding type in fields.
All of these have, amongst other issues, a similar problem: If the
tiddler is opened for edit it is far too easy to corrupt the data.
What sort of useful solutions for this problem already exist? Anybody
have new ideas? Thanks.
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