* remove unused `withRule`
* ensure all ::before and ::after elements have content
* update --tw-content for the content plugin
* simplify `before` and `after` variants
* update tests, to reflect changes
* make new `format` and `wrap` API's private for now
* allow returning a format string from `addVariant` callback
* add `content: var(--tw-content)` for before/after variants
* update tests to add `content: var(--tw-content)`
* update changelog
* use String.raw for css escapes
This will allow us to write code like:
```css
.mobile\:font-bold {}
```
Instead of
```css
.mobile\\:font-bold {}
```
Which resembles "real" css way better in our tests.
* use String.raw in integration tests as well
* fix incorrect comment
Probably messed this up in another PR, so just a bit of cleaning.
* implement a formatVariantSelector function
This will be used to eventually simplify the addVariant API.
The idea is that it can take a list of strings that define a certain
format. Then it squashes everything to a single format how you would
expect it.
E.g.:
Input:
- '&:hover'
- '&:focus'
- '.dark &'
- ':merge(.group):hover &'
- ':merge(.group):focus &'
Output:
- ':merge(.group):focus:hover .dark &:focus:hover'
The API here is:
- `&`, this means "The parent" or "The previous selector" (you can
think of it like if you are using nested selectors)
- `:merge(.group)`, this means insert a `.group` if it doesn't exist
yet, but if it does exist already, then merge the new value with the
old value. This allows us to merge group-focus, group-hover into a
single `.group:focus:hover ...`
* add new `format`, `withRule` and `wrap` API for addVariant
* implement backwards compatibility
This will ensure that the backwards compatibility for `modifySelectors`
and direct mutations to the `container` will still work.
We will try to capture the changes made to the `rule.selector`, we will
also "backup" the existing selector. This allows us to diff the old and
new selectors and determine what actually happened.
Once we know this, we can restore the selector to the "old" selector and
add the diffed string e.g.: `.foo &`, to the `collectedFormats` as if
you called `format()` directly. This is a bunch of extra work, but it
allows us to be backwards compatible.
In the future we could also warn if you are using `modifySelectors`, but
it is going to be a little bit tricky, because usually that's
implemented by plugin authors and therefore you don't have direct
control over this. Maybe we can figure out the plugin this is used in
and change the warning somehow?
* fix incorrect test
This was clearly a bug, keyframes should not include escaped variants at
all. The reason this is here in the first place is because the nodes in
a keyframe are also "rule" nodes.
* swap the order of pseudo states
The current implementation had a strange side effect, that resulted in
incorrect class definitions. When you are combining the `:hover` and
`:focus` event, then there is no difference between `:hover:focus` and
`:focus:hover`.
However, when you use `:hover::file-selector-button` or `::file-selector-button:hover`,
then there is a big difference. In the first place, you can hover over the full file input
to apply changes to the `File selector button`.
In the second scenario you have to hover over the `File selector button` itself to apply changes.
You can think of it as function calls:
- focus(hover(text-center))
What you would expect is something like this:
`.focus\:hover\:text-center:hover:focus`, where `hover` is on the
inside, and `focus` is on the outside. However in the current
implementation this is implemented as
`.focus\:hover\:text-cener:focus:hover`
* add more variant tests for the new API
* update parallel variants tests to make use of new API
* implement core variants with new API
* simplify/cleanup existing plugin utils
We can get rid of this because we drastically simplified the new
addVariant API.
* add addVariant shorthand signature
The current API looks like this:
```js
addVariant('name', ({ format, wrap }) => {
// Wrap in an atRule
wrap(postcss.atRule({ name: 'media', params: '(prefers-reduced-motion: reduce)' }))
// "Mutate" the selector, for example prepend `.dark`
format('.dark &')
})
```
It is also pretty common to have this:
```js
addVariant('name', ({ format }) => format('.dark &'))
```
So we simplified this to:
```js
addVariant('name', '.dark &')
```
It is also pretty common to have this:
```js
addVariant('name', ({ wrap }) => wrap(postcss.atRule({ name: 'media', params: '(prefers-reduced-motion: reduce)' })))
```
So we simplified this to:
```js
addVariant('name', '@media (prefers-reduced-motion: reduce)')
```
* improve fontVariantNumeric implementation
We will use `@defaults`, so that only the resets are injected for the
utilities we actually use.
* fix typo
* allow for nested addVariant shorthand
This will allow to write something like:
```js
addVariant('name', `
@supports (hover: hover) {
@media (print) {
&:hover
}
}
`)
// Or as a one-liner
addVariant('name', '@supports (hover: hover) { @media (print) { &:hover } }')
```
* update changelog
* simplify `inset` plugin
* run `prettier` on stub file
* simplify `align` utility
* improve arbitrary support for outline
This will allow us to use `outline-[OUTLINE,OPTIONAL_OFFSET]`
Input:
```html
outline-[2px_solid_black]
```
Output:
```css
.outline-\[2px_solid_black\] {
outline: 2px solid black;
outline-offset: 0;
}
```
---
Input:
```html
outline-[2px_solid_black,2px]
```
Output:
```css
.outline-\[2px_solid_black\2c 2px\] {
outline: 2px solid black;
outline-offset: 2px;
}
```
* remove default `type`
* simplify createUtilityPlugin, use types directly
* find first matching type when coercing the value
* introduce css data types
Ref: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Types
These data types will be used to "guess" the type of an arbitrary value
if there is some ambiguity going on. For example:
```
bg-[#0088cc] -> This is a `color` -> `background-color`
bg-[url('...')] -> This is a `url` -> `background-image`
```
If you are using css variables, then there is no way of knowing which
type it is referring to, in that case you can be explicit:
```
bg-[color:var(--value)] -> This is a `color` -> `background-color`
bg-[url:var(--value)] -> This is a `url` -> `background-image`
```
When you explicitly pass a data type, then we bypass the type system and
assume you are right. This is nice in a way because now we don't have to
run all of the guessing type code. On the other hand, you can introduce
runtime issues that we are not able to detect:
```
:root {
--value: 12px;
}
/* Later... */
bg-[color:var(--value)] -> Assumes `color` -> *eventually* -> `background-color: 12px`
```
* add a bunch of new tests for advanced arbitrary values
If you use a typehint like `w-[length:12px]`, then currently that
wouldn't generate anything because we don't have a matchUtilities for
`w` with a `length` type. To fix this, we can detect if this is
unnecessary, if it is we still generate the expected outcome. (In this
case `width: 12px`) but we also warn to the user that we detected this.
Currently we detect this by checking if there is only a single plugin
registered for handling the prefix (e.g.: `w-`). We can probably improve
this by also checking all the types that all plugins are handling for
the resolved plugins.
* refactor dropShadow plugin, use `matchUtilities`
* replace `_` with ` ` for arbitrary values
* remove custom `asList` function
* do not replace escaped underscores with spaces
* move `./tests/jit` to `./tests`
* make tests consistent
Abstracted a `run` function and some syntax highlighting helpers for
`html`, `css` and `javascript`.
