What does this add?
===================
This PR adds an extra button to the poll to show the absolute number of
people who voted for each option. This button will only be added for
the single/multi-select bar chart.
Related meta topic: https://meta.discourse.org/t/absolute-numbers-in-polls/32771
The "migration to Glimmer" has been broken out here from #27155 to make the review process less onerous and reduce change risk:
* DEV: migrates most of the widget code to Glimmer in prep for IRV additions
* NB This already incorporates significant amounts of review and feedback from the prior PR.
* NB because there was significant additional feedback relating to older Poll code that I've improved with feedback, there are some additional changes here that are general improvements to the plugin and not specific to IRV nor Glimmer!
* There should be no trace of IRV code here.
Once this is finalised and merged we can continue to progress with #27155.
When initially released, the polls had a different design that didn't interact
well with the quote button - https://meta.discourse.org/t/31586
Now that the design has evolved, not being able to select text from inside a poll is
counter productive, so it's enabled again.
In some very rare cases, poll options can end up with images that have
no dimensions, in which case, navigating to replies in that post stream
might result in unexpected scrolling (as the browser loads the images
and adjusts its layout).
This ensures that if width/height attributes are missing from an image,
the image is forced to display within a 200 by 200 pixels space.
Co-authored-by: David Taylor <david@taylorhq.com>
Some polls with images can be very long. Those which showed a pie chart
for the results had a fixed height set, which meant that some long polls
could be cut off.
Adds an optional title attribute to polls. The rationale for this addition is that polls themselves didn't contain context/question and relied on post body to explain them. That context wasn't always obvious (e.g. when there are multiple polls in a single post) or available (e.g. when you display the poll breakdown - you see the answers, but not the question)
As a side note, here's a word on how the poll plugin works:
> We have a markdown poll renderer, which we use in the builder UI and the composer preview, but… when you submit a post, raw markdown is cooked into html (twice), then we extract data from the generated html and save it to the database. When it's render time, we first display the cooked html poll, and then extract some data from that html, get the data from the post's JSON (and identify that poll using the extracted html stuff) to then render the poll using widgets and the JSON data.
The poll breakdown modal replaces the grouped pie charts feature.
Includes:
* MODAL: Untangle `onSelectPanel`
Previously modal-tab component would call on click the onSelectPanel callback with itself (modal-tab) as `this` which severely limited its usefulness. Now showModal binds the callback to its controller.
"The PR includes a fix/change to d-modal (b7f6ec6) that hasn't been extracted to a separate PR because it's not currently possible to test a change like this in abstract, i.e. with dynamically created controllers/components in tests. The percentage/count toggle test for the poll breakdown feature is essentially a test for that d-modal modification."
Run `prettier --write "app/assets/stylesheets/**/*.scss" "plugins/**/*.scss"` after making sure you installed it with `yarn`
It's recommended to configure your editor to run prettier on file save.
