Display a red wavy underline beneath misspelled tags in autocomplete.
We use an inline image for the underline instead of the native
`text-decoration: red wavy underline` property because the native
underline is too big and ugly, and we have no way to adjust it. Making a
nice-looking wavy underline in CSS is surprisingly difficult. This
turned out to be the cleanest way.
* Add a frequently asked questions section.
* Add nicer looking upgrade buttons.
* Format the page nicer.
* Prevent users from attempting invalid upgrades on users that are
already Platinum or above.
This is the scenario:
* You type something in autocomplete, let's say 'touhou'.
* Autocomplete calls /autocomplete?search[query]=touhou&search[type]=tag_query
* The endpoint returns JSON, because the autocomplete call sets an
`Accept: application/json` header requesting JSON.
* Visit /autocomplete?search[query]=touhou&search[type]=tag_query in your browser.
* Notice that the cached JSON response is incorrectly returned, not an
HTML response like the browser requested.
The problem is that the response type is chosen based on the Accept
header, but the response didn't set the `Vary: Accept` header, so the
browser doesn't know the response type can vary and so it incorrectly
returns the cached response.
This issue is partially fixed by Rails 6.1 ([1]), which properly sets the
`Vary: Accept` header when the response depends on the Accept header.
However, the next issue is that Cloudflare doesn't respect the Vary
header at all ([2], [3]). Therefore we can't use the Accept header to
pick the format, instead we have explicitly specify the format with
/autocomplete.json.
This is clearer and better for caching anyway. Using the `Vary: Accept`
header reduces the cache hit rate, because the exact format of the
Accept header varies across browsers, which fragments the cache.
Whew.
[1] https://github.com/rails/rails/pull.36213
[2] https://community.cloudflare.com/t/cloudflare-cdn-cache-to-support-http-vary-header/160802
[3] https://support.cloudflare.com/hc/en-us/articles/115003206852
[4] https://www.smashingmagazine.com/2017/11/understanding-vary-header/
* Remove the `source` and `weight` html data attributes (no longer used).
* Make the `type` html data attribute properly indicate the completion
type. Valid types: `tag`, `tag-alias`, `tag-abbreviation`,
`tag-autocorrect`, `tag-other-name`.
* Set Max-Age= flag instead of Expires= flag.
* Set Secure flag when using HTTPS.
* Extend default cookie lifetime from 1 year to 20 years.
* Remove "session" expiration option (unused).
* Remove max cookie size check.
The cookie size check was previously added in #2518 to deal with running
out of space due to tag scripts and blacklists. This should no longer
happen since we no longer use cookies for these things. Remove the
warning because it should never happen, we can't fix it if it does, and
the user probably won't know how to fix it either.
* Let Mods and Admins see the email addresses of users below their level.
* Let users see their own email address on their profile.
* Let users verify or edit their email address from their profile.
This is to make catching sockpuppets easier, and to make it easier for
users to fix their email.
Add a new Owner user level for the site owner. Highly sensitive
operations like manually changing the passwords of other users will be
restricted to the site owner.
Display autocorrected tags similar to aliases, with an arrow pointing at
the corrected tag, but with a dotted underline beneath the misspelled
tag to indicate that it's misspelled.
This refactors the autocomplete Javascript to use a single dedicated
/autocomplete.json endpoint instead of a bunch of separate endpoints.
This simplifies the autocomplete Javascript by making it so that instead
of calling a different endpoint for each type of query (for users, wiki
pages, pools, artists, etc), then having to parse the results of each
call to get the data we need, we can call a single endpoint that returns
exactly what we need.
This also means we don't have to parse searches clientside in order to
autocomplete metatags. Instead we can just pass the search term to the
server and let it parse the search, which is easy to do serverside.
Finally, this makes autocomplete easier to test, and it makes it easier
to add more sophisticated autocomplete behavior, since most of the logic
lives serverside.
* Only show the current pending flag on flagged posts. Don't show old flags.
* Don't show both the "This post was flagged for review" and the "This
post was flagged and is pending" notices.
* Only show the current pending appeal in the "This post was appealed"
notice. Don't show old appeals.
* Don't show both the "This post was deleted" and the "This post was
appealed" notice on appealed posts. Only show the "This post was
appealed" notice.
* Show "no reason" if no appeal reason was given.
Replace references to the `is_resolved` field with the `status` field.
Post flags were marked as resolved when a post was approved (but not
when the post was deleted because it went unapproved). The status field
supercedes the resolved field.
Fix not having any space between the Submit / Cancel buttons and the
bottom of the dialog box. For some reason this only happens in
production, not development.
Rewrite the tag counter widget (the one above the tag edit box) to use
React. This is a trial run for using React elsewhere.
We actually use Preact instead of React because it's lighter weight.
We use Mobx for state management because it's cleaner than React's
setState or useState.
This incidentally fixes a couple bugs:
* The tag counter wasn't updated when deleting tags with backspace
* The tag counter wasn't updated when pasting in new tags.
* Show a banner if the user is restricted because they signed up from a
proxy or VPN.
* Add an option to resend the confirmation email if your account has an
unverified email address.
Bug: if you moused over another note while dragging a note, it would
trigger a note body popup. This would also happen when drawing out a new
note.
Also fix the drag box for new notes being drawn behind other notes.
Bug: loading and saving a note without moving it could change the note's
position. Moving a note with the keyboard could also cause unintended
changes to the note's size or position. This was because of floating
point errors when converting from percentage coordinates (floats) to pixel
coordinates (integers).
Fix: store note coordinates as pixel coordinates instead of as
percentage coordinates. Percentages are only used to position notes for
display.
Also fix it so you can resize rotated notes with the keyboard. This was
disabled before.
* Raise notes when hovering over them. This is so that when dragging
embedded notes, they're not hidden behind other notes. Also so that if
two notes are overlapping, you can hover over one to raise it over the
other.
* Replace .hovering class with :hover selector.
Bug: if you used they keyboard to move or resize a note, then the note
body would stay visible, which could get in the way when moving in the
down direction.
Bug: if you're editing a note and click preview, then you resize the
image or press V to toggle the image size, then the note body will stay
on the screen in the wrong position.
Bug: previewing a note would mark the note as unsaved even if the note
hadn't been changed.
Fix: mark the note as unsaved when the user types something into the
note edit box, not when the note is previewed.
