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import { getDynamicDuotoneMap } from '@agent/lib/svg-blocks-scanner'; |
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import { replaceDuotoneSVG } from '@agent/lib/svg-helpers'; |
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import apiFetch from '@wordpress/api-fetch'; |
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import { parse } from '@wordpress/blocks'; |
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import { useSelect } from '@wordpress/data'; |
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import { useCallback, useEffect, useRef, useState } from '@wordpress/element'; |
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|
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const id = 'global-styles-inline-css'; |
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const path = window.location.pathname; |
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const s = new URLSearchParams(window.location.search); |
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const onEditor = |
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path.includes('/wp-admin/post.php') && s.get('action') === 'edit'; |
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const { globalStylesPostID } = window.extSharedData; |
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|
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export const useFontVariationOverride = ({ css }) => { |
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const frontStyles = useRef(null); |
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const duotoneCleanup = useRef(null); |
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const [theDocument, setDocument] = useState(null); |
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const [duotoneTheme, setDuotoneTheme] = useState(null); |
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|
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useEffect(() => { |
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apiFetch({ |
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path: `/wp/v2/global-styles/${globalStylesPostID}?context=edit`, |
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}).then((stylesResponse) => { |
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// The stored list is plain after a palette, origin-keyed after a variation. |
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const duotone = stylesResponse?.settings?.color?.duotone; |
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setDuotoneTheme(Array.isArray(duotone) ? duotone : duotone?.theme); |
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}); |
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}, [css]); |
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|
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useEffect(() => { |
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if (!css || onEditor) return; |
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const style = document.getElementById(id); |
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if (!style) return; |
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if (!frontStyles.current) { |
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frontStyles.current = style.innerHTML; |
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} |
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style.innerHTML = css; |
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}, [css]); |
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|
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// Handle the editor |
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useEffect(() => { |
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if (!css || !theDocument || !onEditor) return; |
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const style = theDocument.getElementById(id); |
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const hasIframe = document.querySelector('iframe[name="editor-canvas"]'); |
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style.innerHTML = css.replaceAll( |
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':root', |
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// If the iframe was removed, target the editor the old way |
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hasIframe ? ':root' : '.editor-styles-wrapper', |
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); |
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|
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// Since these effects should not affect the whole editor, only the text |
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if (!hasIframe) { |
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// we need to replace the individual elements with the style wrapper |
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style.innerHTML = style.innerHTML |
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.replace('body{', '.editor-styles-wrapper{') |
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// or prefix them with the editor class |
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.replace( |
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/(h[1-6](?:\s*,\s*h[1-6])*)\s*\{/g, |
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'.editor-styles-wrapper $1{', |
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); |
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} |
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}, [css, theDocument]); |
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|
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useEffect(() => { |
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if (theDocument) return; |
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const timer = setTimeout(() => { |
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if (theDocument) return; |
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const frame = document.querySelector('iframe[name="editor-canvas"]'); |
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const doc = frame?.contentDocument || document; |
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if (!doc || !doc.body) return; |
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// Add a tag to the body |
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const newStyle = doc.createElement('style'); |
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newStyle.id = id; |
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doc.body.appendChild(newStyle); |
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setDocument(doc); |
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}, 300); // wait for iframe |
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return () => clearTimeout(timer); |
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}, [theDocument]); |
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|
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const dynamicDuotone = useSelect((select) => { |
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let blocks = select('core/block-editor')?.getBlocks?.() ?? []; |
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|
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const hasShowTemplateOn = blocks.find( |
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(block) => block.name === 'core/template-part', |
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); |
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|
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if (hasShowTemplateOn) { |
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const { getEditedPostContent } = select('core/editor'); |
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blocks = parse(getEditedPostContent(), {}); |
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} |
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|
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return getDynamicDuotoneMap(blocks); |
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}, []); |
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|
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// Handle duotone changes |
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useEffect(() => { |
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if (!duotoneTheme) return; |
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|
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// Clean up previous duotone changes |
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if (duotoneCleanup.current) { |
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duotoneCleanup.current(); |
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duotoneCleanup.current = null; |
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} |
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|
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// Apply new duotone changes and store cleanup |
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duotoneCleanup.current = replaceDuotoneSVG({ |
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duotoneTheme, |
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dynamicDuotone, |
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}); |
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}, [css, duotoneTheme, dynamicDuotone]); |
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|
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const undoChange = useCallback(() => { |
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// Revert duotone changes |
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if (duotoneCleanup.current) { |
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duotoneCleanup.current(); |
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duotoneCleanup.current = null; |
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} |
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|
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// Revert CSS changes |
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const style = document.getElementById(id); |
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if (style && frontStyles.current) { |
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style.innerHTML = frontStyles.current; |
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} |
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|
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// Remove editor CSS |
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if (!onEditor) return; |
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const iframe = document.querySelector('iframe[name="editor-canvas"]'); |
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const doc = iframe?.contentDocument || document; |
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doc?.getElementById(id)?.remove(); |
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}, []); |
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|
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return { undoChange }; |
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}; |
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