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import { RICH_TEXT_ATTRIBUTES } from '@agent/lib/block-schema'; |
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import { getBlockType, parse, serialize } from '@wordpress/blocks'; |
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import { colord } from 'colord'; |
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|
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const isMergeable = (value) => |
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value && typeof value === 'object' && !Array.isArray(value); |
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|
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// Result aliases both inputs' subtrees — every helper below must not mutate. |
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const deepMerge = (base, patch) => { |
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const out = { ...base }; |
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for (const [key, value] of Object.entries(patch)) { |
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if (value == null) continue; |
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out[key] = |
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isMergeable(value) && isMergeable(out[key]) |
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? deepMerge(out[key], value) |
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: value; |
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} |
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return out; |
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}; |
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|
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const setIn = (obj, parts, value) => { |
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const [head, ...rest] = parts; |
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if (!rest.length) return { ...obj, [head]: value }; |
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const child = isMergeable(obj?.[head]) ? obj[head] : {}; |
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return { ...obj, [head]: setIn(child, rest, value) }; |
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}; |
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const setPath = (attributes, path, value) => |
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setIn(attributes, path.split('.'), value); |
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|
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const unsetIn = (obj, parts) => { |
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const [head, ...rest] = parts; |
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if (!isMergeable(obj) || !(head in obj)) return obj; |
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if (!rest.length) { |
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const { [head]: _, ...kept } = obj; |
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return kept; |
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} |
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return { ...obj, [head]: unsetIn(obj[head], rest) }; |
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}; |
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const unsetPath = (attributes, path) => unsetIn(attributes, path.split('.')); |
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|
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const dropClasses = (attributes, shouldDrop) => { |
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if (!attributes.className) return attributes; |
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const kept = attributes.className |
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.split(/\s+/) |
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.filter((cls) => cls && !shouldDrop(cls)) |
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.join(' '); |
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if (kept) return { ...attributes, className: kept }; |
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return unsetPath(attributes, 'className'); |
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}; |
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|
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// Baked preset color classes (has-primary-color) carry !important and outrank |
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// the custom color; save() regenerates the generic markers, so only named ones go. |
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const isPresetColorClass = |
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({ text, background }) => |
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(cls) => { |
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const isBgPreset = /^has-[\w-]+-background-color$/.test(cls); |
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const isTextPreset = |
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/^has-[\w-]+-color$/.test(cls) && |
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!isBgPreset && |
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cls !== 'has-text-color' && |
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cls !== 'has-link-color'; |
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return Boolean((text && isTextPreset) || (background && isBgPreset)); |
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}; |
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|
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const COLOR_CHANNELS = [ |
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['backgroundColor', 'background'], |
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['textColor', 'text'], |
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]; |
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|
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// A known slug maps to a theme preset class; anything else routes to inline |
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// style.color.* — so "yellow" (no matching token) never lands on a wrong slug. |
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// Kept inline, a token's own hex stops the block following the palette. |
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const slugForValue = (value, colorValues) => { |
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const wanted = colord(value); |
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if (!wanted.isValid()) return null; |
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const hex = wanted.toHex(); |
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const match = Object.entries(colorValues ?? {}).find(([, preset]) => { |
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const parsed = colord(String(preset)); |
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return parsed.isValid() && parsed.toHex() === hex; |
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}); |
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return match?.[0] ?? null; |
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}; |
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|
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const routeColors = (attributes, patch, colorSlugs, colorValues) => { |
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const slugs = new Set(colorSlugs ?? []); |
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const stripped = {}; |
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let out = attributes; |
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for (const [named, key] of COLOR_CHANNELS) { |
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const value = patch?.[named]; |
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if (value == null) continue; |
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const named_slug = slugs.has(value) |
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? value |
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: slugForValue(value, colorValues); |
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if (named_slug) { |
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if (named_slug !== value) out = setPath(out, named, named_slug); |
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out = unsetPath(out, `style.color.${key}`); |
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continue; |
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} |
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const parsed = colord(value); |
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out = setPath( |
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out, |
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`style.color.${key}`, |
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parsed.isValid() ? parsed.toHex() : value, |
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); |
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out = unsetPath(out, named); |
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stripped[key] = true; |
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} |
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if (stripped.text || stripped.background) { |
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out = dropClasses(out, isPresetColorClass(stripped)); |
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} |
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return out; |
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}; |
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|
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// Colours WP stores as a slug attribute beside a custom-value attribute. |
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const PAIRED_COLORS = [ |
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{ |
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named: 'overlayColor', |
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custom: 'customOverlayColor', |
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flag: 'isUserOverlayColor', |
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}, |
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// The icon renders from the value alone; the slug only adds a class. |
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{ named: 'iconColor', custom: 'iconColorValue', valueForSlug: true }, |
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{ |
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named: 'iconBackgroundColor', |
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custom: 'iconBackgroundColorValue', |
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valueForSlug: true, |
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}, |
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]; |
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|
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const routePairedColors = (attributes, patch, colorSlugs, colorValues) => { |
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const slugs = new Set(colorSlugs ?? []); |
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let out = attributes; |
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for (const { named, custom, flag, valueForSlug } of PAIRED_COLORS) { |
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const value = patch?.[named]; |
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if (value == null) continue; |
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const slug = slugs.has(value) ? value : slugForValue(value, colorValues); |
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if (slug) { |
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out = { ...out, [named]: slug }; |
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const slugHex = colorValues?.[slug]; |
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out = |
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valueForSlug && slugHex |
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? { ...out, [custom]: colord(String(slugHex)).toHex() } |
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: unsetPath(out, custom); |
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} else { |
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const parsed = colord(value); |
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out = unsetPath( |
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{ ...out, [custom]: parsed.isValid() ? parsed.toHex() : value }, |
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named, |
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); |
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} |
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if (flag) out = { ...out, [flag]: true }; |
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} |
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return out; |
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}; |
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|
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// fontSize / fontFamily mirror the color routing: known slug → named attribute |
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// (preset class), anything else → the inline style path. |
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const NAMED_PRESETS = [ |
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{ |
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named: 'fontSize', |
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path: 'style.typography.fontSize', |
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slugs: 'fontSize', |
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classRe: /^has-[\w-]+-font-size$/, |
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}, |
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{ |
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named: 'fontFamily', |
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path: 'style.typography.fontFamily', |
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slugs: 'fontFamily', |
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classRe: /^has-[\w-]+-font-family$/, |
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}, |
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]; |
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|
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const routeNamedPresets = (attributes, patch, presetSlugs) => { |
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const strippers = []; |
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let out = attributes; |
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for (const { named, path, slugs, classRe } of NAMED_PRESETS) { |
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const value = patch?.[named]; |
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if (value == null) continue; |
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if (new Set(presetSlugs?.[slugs] ?? []).has(value)) { |
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out = unsetPath(out, path); |
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continue; |
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} |
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out = unsetPath(setPath(out, path, value), named); |
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strippers.push(classRe); |
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} |
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if (strippers.length) { |
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out = dropClasses(out, (cls) => strippers.some((re) => re.test(cls))); |
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} |
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return out; |
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}; |
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|
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// Which color side a cleared path removes, so its baked preset class goes too. |
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const CLEAR_COLOR_SIDE = { |
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backgroundColor: 'background', |
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'style.color.background': 'background', |
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textColor: 'text', |
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'style.color.text': 'text', |
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}; |
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|
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// A routed field lands in a named attr or an inline style; clearing must unset both. |
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const ROUTED_PAIRS = [ |
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['backgroundColor', 'style.color.background'], |
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['textColor', 'style.color.text'], |
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['gradient', 'style.color.gradient'], |
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...NAMED_PRESETS.map(({ named, path }) => [named, path]), |
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...PAIRED_COLORS.map(({ named, custom }) => [named, custom]), |
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]; |
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const CLEAR_ALIASES = Object.fromEntries( |
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ROUTED_PAIRS.flatMap((pair) => pair.map((p) => [p, pair])), |
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); |
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|
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// null means "no change", so removal has its own channel: paths listed to reset. |
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const applyClears = (attributes, clear) => { |
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const sides = {}; |
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let out = attributes; |
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for (const path of clear) { |
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for (const p of CLEAR_ALIASES[path] ?? [path]) out = unsetPath(out, p); |
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if (CLEAR_COLOR_SIDE[path]) sides[CLEAR_COLOR_SIDE[path]] = true; |
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} |
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if (sides.text || sides.background) { |
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out = dropClasses(out, isPresetColorClass(sides)); |
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} |
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return out; |
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}; |
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|
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// The model always says `text`; blocks that keep theirs elsewhere need the remap. |
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const remapText = (block, patch) => { |
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if (patch?.text == null) return patch; |
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const attributes = getBlockType(block.name)?.attributes ?? {}; |
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const real = RICH_TEXT_ATTRIBUTES.find((name) => attributes[name]); |
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if (!real || real === 'text') return patch; |
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const { text, ...rest } = patch; |
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return { ...rest, [real]: text }; |
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}; |
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|
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// Re-serializing runs the block's own save(), which core/button needs to render |
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// the color/border styles it marks __experimentalSkipSerialization. |
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// Merging an empty value leaves a dead key and keeps the preset class. |
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const emptyLeafPaths = (patch, prefix = '') => |
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Object.entries(patch ?? {}).flatMap(([key, value]) => { |
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const path = prefix ? `${prefix}.${key}` : key; |
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if (isMergeable(value)) return emptyLeafPaths(value, path); |
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return value === '' ? [path] : []; |
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}); |
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|
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// A block with no style would otherwise save the patch's null and emptied keys. |
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const withoutEmptyLeaves = (patch) => |
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Object.fromEntries( |
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Object.entries(patch ?? {}).flatMap(([key, value]) => { |
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if (isMergeable(value)) { |
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const kept = withoutEmptyLeaves(value); |
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return Object.keys(kept).length ? [[key, kept]] : []; |
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} |
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return value === '' || value == null ? [] : [[key, value]]; |
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}), |
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); |
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|
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// Patch values arrive as strings; the parser drops "30" on a number attribute. |
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const coerceTypes = (block, patch) => { |
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const attributes = getBlockType(block.name)?.attributes ?? {}; |
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let out = patch; |
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for (const [key, value] of Object.entries(patch ?? {})) { |
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if (typeof value !== 'string') continue; |
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const type = attributes[key]?.type; |
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if (type === 'boolean' && ['true', 'false'].includes(value)) { |
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out = { ...out, [key]: value === 'true' }; |
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continue; |
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} |
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if (type !== 'number') continue; |
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const [, amount, unit] = |
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value.trim().match(/^(-?\d*\.?\d+)\s*([a-z%]*)$/i) ?? []; |
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if (amount == null) continue; |
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out = { ...out, [key]: Number(amount) }; |
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// The model writes lengths like "60vh" into the number field. |
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const unitKey = `${key}Unit`; |
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if (unit && attributes[unitKey] && out[unitKey] == null) { |
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out = { ...out, [unitKey]: unit }; |
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} |
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} |
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return out; |
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}; |
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|
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export const applyBlockPatch = ( |
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serializedBlock, |
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patch, |
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clear = [], |
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presetSlugs = {}, |
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) => { |
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const blocks = parse(serializedBlock).map((block) => { |
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if (!block.name) return block; |
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const remapped = remapText(block, patch); |
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const filled = coerceTypes(block, withoutEmptyLeaves(remapped)); |
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const merged = deepMerge(block.attributes, filled); |
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const colored = routePairedColors( |
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routeColors(merged, filled, presetSlugs.color, presetSlugs.colorValues), |
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filled, |
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presetSlugs.color, |
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presetSlugs.colorValues, |
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); |
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const routed = routeNamedPresets(colored, filled, presetSlugs); |
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return { |
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...block, |
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attributes: applyClears(routed, [ |
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...(clear ?? []), |
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...emptyLeafPaths(remapped), |
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]), |
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}; |
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}); |
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return serialize(blocks); |
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}; |
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|
