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Merged
merged 3 commits into from
Jul 7, 2022
Merged

css has pseudo : pseudo element support and .js-has-pseudo class #525

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b73883e
css has pseudo : pseudo element support and .js-has-pseudo class
romainmenke Jul 7, 2022
dd2e1ca
update tests
romainmenke Jul 7, 2022
c88c45d
Merge branch 'postcss-preset-env--v8' into css-has-pseudo--inventive-…
romainmenke Jul 7, 2022
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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.autoprefixer.expect.css
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Expand Up @@ -269,7 +269,7 @@
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.autoprefixer.false.expect.css
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Expand Up @@ -269,7 +269,7 @@
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.ch38.expect.css
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Expand Up @@ -189,7 +189,7 @@
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.ch88-ff78-saf10.expect.css
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Expand Up @@ -188,7 +188,7 @@ h1.test-custom-selectors,h2.test-custom-selectors,h3.test-custom-selectors,h4.te
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.ch88-ff78.expect.css
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Expand Up @@ -181,7 +181,7 @@ h1.test-custom-selectors,h2.test-custom-selectors,h3.test-custom-selectors,h4.te
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.ch88-ff78.no-is-pseudo.expect.css
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Expand Up @@ -181,7 +181,7 @@ h1.test-custom-selectors,h2.test-custom-selectors,h3.test-custom-selectors,h4.te
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.expect.css
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Expand Up @@ -292,7 +292,7 @@
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.ff49.expect.css
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Expand Up @@ -185,7 +185,7 @@
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.ff66.expect.css
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Expand Up @@ -173,7 +173,7 @@
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.ie10.expect.css
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Expand Up @@ -301,7 +301,7 @@
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.nesting.false.expect.css
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Expand Up @@ -290,7 +290,7 @@ h1.test-custom-selectors,h2.test-custom-selectors,h3.test-custom-selectors,h4.te
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.op_mini.expect.css
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Expand Up @@ -276,7 +276,7 @@ h1.test-custom-selectors,h2.test-custom-selectors,h3.test-custom-selectors,h4.te
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.preserve.true.expect.css
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Expand Up @@ -524,7 +524,7 @@ h1.test-custom-selectors,h2.test-custom-selectors,h3.test-custom-selectors,h4.te
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.safari15.expect.css
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Expand Up @@ -157,7 +157,7 @@
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.stage0-ff49.expect.css
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Expand Up @@ -190,7 +190,7 @@ h1.test-custom-selectors,h2.test-custom-selectors,h3.test-custom-selectors,h4.te
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.stage0-ff66.expect.css
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Expand Up @@ -178,7 +178,7 @@ h1.test-custom-selectors,h2.test-custom-selectors,h3.test-custom-selectors,h4.te
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/basic.stage0.expect.css
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Expand Up @@ -297,7 +297,7 @@ h1.test-custom-selectors,h2.test-custom-selectors,h3.test-custom-selectors,h4.te
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
.js-has-pseudo [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/client-side-polyfills.stage-1.expect.css
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Expand Up @@ -10,7 +10,7 @@
order: 3;
}

[csstools-has-1m-2w-2p-37-14-1a-2p-15] {
.js-has-pseudo [csstools-has-1m-2w-2p-37-14-1a-2p-15] {
order: 4;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/client-side-polyfills.stage-2.expect.css
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Expand Up @@ -10,7 +10,7 @@
order: 3;
}

[csstools-has-1m-2w-2p-37-14-1a-2p-15] {
.js-has-pseudo [csstools-has-1m-2w-2p-37-14-1a-2p-15] {
order: 4;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/disable-client-side-polyfills.disabled.expect.css
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Expand Up @@ -6,7 +6,7 @@ input:blank {
order: 1;
}

[csstools-has-2p-1m-2w-2p-37-14-1q-w-2x-31-2v-15]:not(does-not-exist):not(does-not-exist) {
.js-has-pseudo [csstools-has-2p-1m-2w-2p-37-14-1q-w-2x-31-2v-15]:not(does-not-exist):not(does-not-exist) {
order: 2;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/layers-basic.expect.css
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Expand Up @@ -474,7 +474,7 @@ h1.test-custom-selectors:not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):n
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#) {
.js-has-pseudo:not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#) [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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2 changes: 1 addition & 1 deletion plugin-packs/postcss-preset-env/test/layers-basic.preserve.true.expect.css
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Expand Up @@ -535,7 +535,7 @@ h1.test-custom-selectors:not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):n
background-color: yellow;
}

[csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#) {
.js-has-pseudo:not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#):not(#\#) [csstools-has-1a-38-2t-37-38-19-2w-2p-37-19-34-37-2t-39-2s-33-19-2r-30-2p-37-37-1m-2w-2p-37-14-1a-2x-32-32-2t-36-19-2r-30-2p-37-37-15]:not(.does-not-exist) {
background-color: yellow;
}

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3 changes: 0 additions & 3 deletions plugins/css-has-pseudo/.tape.mjs
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Expand Up @@ -38,9 +38,6 @@ postcssTape(plugin)({
},
'browser': {
message: 'prepare CSS for chrome test',
options: {
preserve: false
}
},
'plugin-order-logical:before': {
message: 'works with other plugins that modify selectors',
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53 changes: 36 additions & 17 deletions plugins/css-has-pseudo/src/browser.js
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Expand Up @@ -4,6 +4,28 @@ import '@mrhenry/core-web/modules/~element-qsa-has.js';
import extractEncodedSelectors from './encode/extract.mjs';
import encodeCSS from './encode/encode.mjs';

function hasNativeSupport(document) {
try {
// Chrome does not support forgiving selector lists in :has()
document.querySelector(':has(*, :does-not-exist, > *)');
document.querySelector(':has(:has(any))');

// Safari incorrectly returns the html element with this query
if (document.querySelector(':has(:scope *)')) {
return false;
}

if (!('CSS' in self) || !('supports' in self.CSS) || !self.CSS.supports(':has(any)')) {
return false;
}

} catch (_) {
return false;
}

return true;
}

export default function cssHasPseudo(document, options) {
// OPTIONS
{
Expand All @@ -18,23 +40,7 @@ export default function cssHasPseudo(document, options) {
forcePolyfill: (!!options.forcePolyfill) || false,
};

if (!options.forcePolyfill) {
try {
// Chrome does not support forgiving selector lists in :has()
document.querySelector(':has(*, :does-not-exist, > *)');

// Safari incorrectly returns the html element with this query
if (!document.querySelector(':has(:scope *)')) {
// Native support detected.
// Doing early return.
return;
}

// fallthrough to polyfill
} catch (_) {
// fallthrough to polyfill
}
}
options.mustPolyfill = options.forcePolyfill || !hasNativeSupport(document);

if (!Array.isArray(options.observedAttributes)) {
options.observedAttributes = [];
Expand All @@ -56,6 +62,12 @@ export default function cssHasPseudo(document, options) {

// walk all stylesheets to collect observed css rules
[].forEach.call(document.styleSheets, walkStyleSheet);
if (!options.mustPolyfill) {
// Cleanup of rules will have happened in `walkStyleSheet`
// Native support will take over from here
return;
}

transformObservedItemsThrottled();

// observe DOM modifications that affect selectors
Expand Down Expand Up @@ -228,13 +240,20 @@ export default function cssHasPseudo(document, options) {
// walk a css rule to collect observed css rules
[].forEach.call(styleSheet.cssRules || [], (rule) => {
if (rule.selectorText) {
rule.selectorText = rule.selectorText.replace(/\.js-has-pseudo\s/g, '');

try {
// decode the selector text in all browsers to:
const hasSelectors = extractEncodedSelectors(rule.selectorText.toString());
if (hasSelectors.length === 0) {
return;
}

if (!options.mustPolyfill) {
rule.deleteRule();
return;
}

for (let i = 0; i < hasSelectors.length; i++) {
const hasSelector = hasSelectors[i];
observedItems.push({
Expand Down
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