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postcss-blank : browser compat #519

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Merged
merged 4 commits into from
Jul 3, 2022
Merged

postcss-blank : browser compat #519

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5814815
postcss-blank : browser compat
romainmenke Jul 3, 2022
15d58b8
fix
romainmenke Jul 3, 2022
a12fbb3
fix
romainmenke Jul 3, 2022
552ef4a
Merge remote-tracking branch 'origin/postcss-preset-env--v8' into pos…
romainmenke Jul 3, 2022
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63 changes: 45 additions & 18 deletions plugins/css-blank-pseudo/src/browser.js
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Original file line number Diff line number Diff line change
@@ -1,8 +1,14 @@
/* global document,MutationObserver */
/* global document,window,self,MutationObserver */
import isValidReplacement from './is-valid-replacement.mjs';

// form control elements selector
const BLANK_CANDIDATES = 'input,select,textarea';
function isFormControlElement(element) {
if (element.nodeName === 'INPUT' || element.nodeName === 'SELECT' || element.nodeName === 'TEXTAREA') {
return true;
}

return false;
}

function createNewEvent(eventName) {
let event;
Expand All @@ -21,8 +27,6 @@ function generateHandler(replaceWith) {
let selector;
let remove;
let add;
const matches = typeof document.body.matches === 'function'
? 'matches' : 'msMatchesSelector';

if (replaceWith[0] === '.') {
selector = replaceWith.slice(1);
Expand All @@ -37,7 +41,7 @@ function generateHandler(replaceWith) {

return function handleInputOrChangeEvent(event) {
const element = event.target;
if (!element[matches](BLANK_CANDIDATES)) {
if (!isFormControlElement(element)) {
return;
}

Expand Down Expand Up @@ -111,39 +115,62 @@ export default function cssBlankPseudoInit(opts) {

const handler = generateHandler(options.replaceWith);

document.body.addEventListener('change', handler);
document.body.addEventListener('input', handler);

// observe value changes on <input>, <select>, and <textarea>
const window = (document.ownerDocument || document).defaultView;
if (document.body) {
document.body.addEventListener('change', handler);
document.body.addEventListener('input', handler);
} else {
window.addEventListener('load', () => {
if (document.body) {
document.body.addEventListener('change', handler);
document.body.addEventListener('input', handler);
}
});
}

observeValueOfHTMLElement(window.HTMLInputElement, handler);
observeValueOfHTMLElement(window.HTMLSelectElement, handler);
observeValueOfHTMLElement(window.HTMLTextAreaElement, handler);
observeSelectedOfHTMLElement(window.HTMLOptionElement, handler);
observeValueOfHTMLElement(self.HTMLInputElement, handler);
observeValueOfHTMLElement(self.HTMLSelectElement, handler);
observeValueOfHTMLElement(self.HTMLTextAreaElement, handler);
observeSelectedOfHTMLElement(self.HTMLOptionElement, handler);

// conditionally update all form control elements
Array.prototype.forEach.call(
document.querySelectorAll(BLANK_CANDIDATES),
document.querySelectorAll('input, select, textarea'),
node => {
handler({ target: node });
},
);

if (typeof window.MutationObserver !== 'undefined') {
if (typeof self.MutationObserver !== 'undefined') {
// conditionally observe added or unobserve removed form control elements
new MutationObserver(mutationsList => {
mutationsList.forEach(mutation => {
Array.prototype.forEach.call(
mutation.addedNodes || [],
node => {
// Matches isn't polyfilled here since IE9 doesn't have support for MO
if (node.nodeType === 1 && node.matches(BLANK_CANDIDATES)) {
if (node.nodeType === 1 && isFormControlElement(node)) {
handler({ target: node });
}
},
);
});
}).observe(document, { childList: true, subtree: true });
} else {
window.addEventListener('load', () => {
Array.prototype.forEach.call(
document.querySelectorAll('input, select, textarea'),
node => {
handler({ target: node });
},
);
});

window.addEventListener('DOMContentLoaded', () => {
Array.prototype.forEach.call(
document.querySelectorAll('input, select, textarea'),
node => {
handler({ target: node });
},
);
});
}
}
1 change: 1 addition & 0 deletions plugins/css-blank-pseudo/test/_browser.html
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
<link rel="stylesheet" href="/test/browser.expect.css">
<script src="/dist/browser-global.js"></script>
<script>self._cssBlankPseudoInit = cssBlankPseudoInit</script>
<script>self._cssBlankPseudoInit();</script>
</head>
<body>
<input type="tel" id="tel-input" aria-label="">
Expand Down