mediawiki-extensions-Popups/README.md
Thiemo Kreuz c5accc0300 Rename many functions and files for clarity
The main motivation here is to dramatically reduce the number
of places that use the same property name "enabled" for values
on different objects (e.g. "state", "actions", and "updates"
are all different things) with slightly different meanings. I
tried hard to come up with names that reflect better what each
meaning is.

Bug: T277639
Change-Id: Ie766259793f716262e3d4622ca55156d11f4842c
2021-04-08 11:04:02 +02:00

100 lines
4.4 KiB
Markdown

![Popups](./popups.svg)
# mediawiki/extensions/Popups
See https://www.mediawiki.org/wiki/Extension:Popups for more information about
what it does.
## Development
Popups uses an asset bundler so when developing for the extension you'll need
to run a script to assemble the frontend assets.
You can find the frontend source files in `src/`, the compiled sources in
`resources/dist/`, and other frontend assets managed by resource loader in
`resources/*`.
After an `npm install`:
* On one terminal, kickstart the bundler process:
* `npm start` Will run the bundler in watch mode, re-assembling the files on
file change. Additionally, this builds debug-friendly assets and enables
[Redux DevTools] debugging.
* `npm run build` Will compile the assets just once, ready for deployment. You
*must* run this step before sending the patch or CI will fail (so that
sources and built assets are in sync).
* On another terminal, run tests and linting tools:
* `npm test` To run the linting tools and the tests.
* You can find the QUnit tests that depend on running MediaWiki under
`tests/qunit/`
* You can find the isolated QUnit tests under `tests/node-qunit/`, which you
can run with `npm run test:unit`
* We recommend you install a file watcher like `nodemon` to watch sources and
auto run linting and tests.
* `npm install -g nodemon`
* Example running linting and node unit tests:
* `nodemon -w src/ --exec "grunt lint:all && npm run test:unit"`
* Get code coverage report with `npm run coverage`
* Reports printed in the `coverage/` folder
Developers are likely to work with local MediaWiki instances that do not have
content to test with. To reduce this pain, you can create a single page with
a list of links that point to an existing and external wiki by using the
following config flag:
$wgPopupsGateway = 'restbaseHTML';
$wgPopupsRestGatewayEndpoint = 'https://en.wikipedia.org/api/rest_v1/page/summary/';
Popups works with a local copy of the [Mobile Content Service] too:
$wgPopupsGateway = 'restbaseHTML';
$wgPopupsRestGatewayEndpoint = 'http://localhost:6927/en.wikipedia.org/v1/page/summary/';
[Redux DevTools]: https://chrome.google.com/webstore/detail/redux-devtools/lmhkpmbekcpmknklioeibfkpmmfibljd
[Mobile Content Service]: https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/services/mobileapps/+/master
## Debugging
* Popups are dismissed ("abandoned") when the cursor leaves the popup
container. As such, it can be difficult to debug a popup of interest
without it popping in and out of the DOM. A useful workaround in
DevTools is to context click a link, select inspect, move the cursor
some place comfortable, and then from the console enter
`$($0).trigger('mouseenter')`.
* As described in [[#Development]], `npm start` enables Redux DevTools
functionality. In production builds, this same functionality can be
enabled by setting a `debug=true` query. E.g.,
`https://en.wikipedia.org/wiki/Popup?debug=true`.
* When a QUnit test fails but you can't see why, open package.json and
temporarily remove the snippet `| tap-mocha-reporter dot`.
## Storybook.js Component Library
The root of the repository contains a .storybook directory. This folder contains
a separate NPM project using the [Storybook.js](https://storybook.js.org/) UI framework.
This framework provides an environment that showcases all possible permutations of popups,
without the state-management constraints of having only one popup per page.
This framework requires Node 8 (because of the spread `...` operator) and is therefore
separated from the main package.json until CI upgrades from Node 6. NVM can be used to
manage multiple Node versions to run the Storybook app (`cd .storybook && nvm use`).
See the .storybook/README.md for details.
## Building the documentation
Execute `npm -s run doc`.
## Terminology
* Footnote - What the Cite extension shows at the bottom of the page.
* Hovercard - Deprecated term for popup.
* Link preview - A similar user feature in the Android native app.
* Navpop / nav pop - A popup-like UI from the NavigationPopups gadget.
* Popup - Generic term for a dialog that appears to float above a link that is
being hovered over by a cursor.
* Page preview - A specific type of popup that shows a page summary.
* Preview - A synonym for popup.
* Reference - A specific type of popup that previews the Cite extension's
footnotes. Since footnotes are typically used for references, and the tag's
name is `<ref>`, the terms are used synonymously.