Jeremy,
That has a great deal of utility. I was working on a method to export
comments and re-import them into to master copy of a wiki to then apply
them to the master. The same can be done for any new or modified tiddlers
using local storage.
Local storage raises the following for me
1. Can we differentiate tiddlers modified via local storage and those
not, including across multiple sessions - NoteSelf seems to keep the
haschanged flag for such tiddlers (along with versions)
2. With a Wiki + Local storage changes, we should be able to provide
easy access to a set of "Big Green Save Buttons"
- Save Empty based on this Version
- Save As Served *without tiddlers from local Storage* (When someone
wants to make an Edition out of the served Wiki).
- Save As Served *Plus tiddlers from local Storage* (allows save in
current state) and to leave local storage method
- Save only new or changed tiddlers stored in Local Storage
- Export changes and could be re-imported into another
browser/session
- Can send to master wiki owner for selective import.
- Could include a filtered export eg export only comments.
With the introduction of a local storage feature I believe all of the above
are relatively trivial to achieve however they will add great utility to
tiddlywiki and users. They could be included in the local storage plugin
but in reality the permit emergency save, export changes and more that
would help in most use cases. Perhaps a set of "Big Green Buttons" can be
placed in ControlPanel > Saving > General
Regards
Tony
On Friday, February 8, 2019 at 9:11:47 AM UTC+11, Jeremy Ruston wrote:
>
> Further to Mat’s discovery
> <https://groups.google.com/d/topic/tiddlywiki/T_v5vSiCEDA/discussion> of
> the new mathematics operators in v5.1.20, there’s another newly added
> feature that has also been discussed for quite a long time: a plugin that
> lets TiddlyWiki save and load tiddlers from browser’s built in “local
> storage <https://en.wikipedia.org/wiki/Web_storage#localStorage>”.
>
> At startup, the plugin reads tiddlers from local storage. Any tiddlers
> that are identical to those built into the file are deleted from local
> storage. Once the wiki is up and running, any tiddler changes are
> written straight to local storage.
>
> You can install it using the plugin library in a v5.1.20-prelease wiki, or
> there’s an example here that has it pre-installed:
>
>
> https://tiddlywiki.com/prerelease/editions/full/#%24%3A%2Fplugins%2Ftiddlywiki%2Fbrowser-storage
>
> <https://tiddlywiki.com/prerelease/editions/full/#$:/plugins/tiddlywiki/browser-storage>
>
> You’ll see that even though the wiki warns you when you refresh in the
> usual way, once you reload it any changes you’ve made will reappear.
>
> Browser local storage is not a panacea for TiddlyWiki:
>
> • Browsers limit the amount of local storage available to a page,
> typically to 5 or 10MB
> • Keeping personal data in browser local storage can lead to unexpected
> privacy violations
> • Browsers reserve the right to without warning delete data stored in
> local storage at any time
> • Browsers tie local storage to a URL which can lead to problems if you
> move a wiki to a URL previously occupied by a different wiki
>
> The plugin isn’t quite finished; I want to add a more visible indicator
> for when data is stored in local storage, and a way to delete any stored
> data and disable it for the future.
>
> As usual, questions and comments welcome,
>
> Best wishes
>
> Jeremy.
>
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