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diff --git a/src/services/style_setter/style_setter.js b/src/services/style_setter/style_setter.js
index ac286928a7..cbbee3eb39 100644
--- a/src/services/style_setter/style_setter.js
+++ b/src/services/style_setter/style_setter.js
@@ -1,381 +1,381 @@
import sum from 'hash-sum'
import localforage from 'localforage'
import { chunk, throttle } from 'lodash-es'
import { getCssRules } from '../theme_data/css_utils.js'
import { getEngineChecksum, init } from '../theme_data/theme_data_3.service.js'
import { useMergedConfigStore } from 'src/stores/merged_config.js'
import { useSyncConfigStore } from 'src/stores/sync_config.js'
import { promisedRequest } from 'src/api/helpers.js'
import { ROOT_CONFIG } from 'src/modules/default_config_state.js'
// On platforms where this is not supported, it will return undefined
// Otherwise it will return an array
const supportsAdoptedStyleSheets = !!document.adoptedStyleSheets
const stylesheets = {}
export const createStyleSheet = (id, priority = 1000) => {
if (stylesheets[id]) return stylesheets[id]
const newStyleSheet = {
rules: [],
ready: false,
priority,
clear() {
this.rules = []
},
addRule(rule) {
let newRule = rule
if (!CSS.supports?.('backdrop-filter', 'blur()')) {
newRule = newRule.replaceAll(/backdrop-filter:[^;]+;/g, '') // Remove backdrop-filter
}
if (newRule.startsWith('::-webkit')) {
if (typeof CSS.supports !== 'function') return
// firefox doesn't like invalid selectors
const fullWebkitScrollbarSupport =
CSS.supports('selector(::-webkit-scrollbar)') &&
CSS.supports('selector(::-webkit-scrollbar-button)') &&
CSS.supports('selector(::-webkit-resizer)') &&
CSS.supports('selector(::-webkit-scrollbar-thumb)')
if (!fullWebkitScrollbarSupport) return
}
this.rules.push(
newRule.replaceAll(/var\(--shadowFilter\)[^;]*;/g, ''), // Remove shadowFilter references
)
},
}
stylesheets[id] = newStyleSheet
return newStyleSheet
}
export const adoptStyleSheets = throttle(() => {
if (supportsAdoptedStyleSheets) {
document.adoptedStyleSheets = Object.values(stylesheets)
.filter((x) => x.ready)
.sort((a, b) => a.priority - b.priority)
.map((sheet) => {
const css = new CSSStyleSheet()
sheet.rules.forEach((r) => {
try {
css.insertRule(r)
} catch (e) {
console.warn('Error inserting rule:', e, r)
}
})
return css
})
} else {
const holder = document.getElementById('custom-styles-holder')
for (let i = holder.sheet.cssRules.length - 1; i >= 0; --i) {
holder.sheet.deleteRule(i)
}
Object.values(stylesheets)
.filter((x) => x.ready)
.sort((a, b) => a.priority - b.priority)
.forEach((sheet) => {
sheet.rules.forEach((r) => holder.sheet.insertRule(r))
})
}
// Some older browsers do not support document.adoptedStyleSheets.
// In this case, we use the <style> elements.
// Since the <style> elements we need are already in the DOM, there
// is nothing to do here.
}, 500)
const EAGER_STYLE_ID = 'pleroma-eager-styles'
const LAZY_STYLE_ID = 'pleroma-lazy-styles'
export const hasInvalidCachedThemeRules = (data) =>
data
.flat()
.some((rule) => /--(?:mono)?font:\s*\[object Object\](?:;|$)/i.test(rule))
const generateTheme = (inputRuleset, callbacks, debug) => {
const {
onNewRule = () => {
/* no-op */
},
onLazyFinished = () => {
/* no-op */
},
onEagerFinished = () => {
/* no-op */
},
} = callbacks
const themes3 = init({
inputRuleset,
debug,
})
getCssRules(themes3.eager, debug).forEach((rule) => {
// Hacks to support multiple selectors on same component
onNewRule(rule, false)
})
onEagerFinished()
// Optimization - instead of processing all lazy rules in one go, process them in small chunks
// so that UI can do other things and be somewhat responsive while less important rules are being
// processed
let counter = 0
const chunks = chunk(themes3.lazy, 200)
// let t0 = performance.now()
const processChunk = () => {
const chunk = chunks[counter]
Promise.all(chunk.map((x) => x())).then((result) => {
getCssRules(result.filter(Boolean), debug).forEach((rule) => {
onNewRule(rule, true)
})
// const t1 = performance.now()
// console.debug('Chunk ' + counter + ' took ' + (t1 - t0) + 'ms')
// t0 = t1
counter += 1
if (counter < chunks.length) {
setTimeout(processChunk, 0)
} else {
onLazyFinished()
}
})
}
return { lazyProcessFunc: processChunk }
}
export const tryLoadCache = async () => {
console.info('Trying to load compiled theme data from cache')
const cache = await localforage.getItem('pleromafe-theme-cache')
if (!cache) return null
try {
if (
cache.engineChecksum === getEngineChecksum() &&
cache.checksum !== undefined &&
cache.checksum === useMergedConfigStore().mergedConfig.themeChecksum &&
!hasInvalidCachedThemeRules(cache.data)
) {
const eagerStyles = createStyleSheet(EAGER_STYLE_ID, 10)
const lazyStyles = createStyleSheet(LAZY_STYLE_ID, 20)
cache.data[0].forEach((rule) => eagerStyles.addRule(rule))
cache.data[1].forEach((rule) => lazyStyles.addRule(rule))
eagerStyles.ready = true
lazyStyles.ready = true
console.info(`Loaded theme from cache`)
return true
} else {
console.warn("Checksums don't match, cache not usable, clearing")
localStorage.removeItem('pleroma-fe-theme-cache')
}
} catch (e) {
console.error('Failed to load theme cache:', e)
return false
}
}
export const applyTheme = (
input,
onEagerFinish = () => {
/* no-op */
},
onFinish = () => {
/* no-op */
},
- debug,
+ debug = false,
) => {
const eagerStyles = createStyleSheet(EAGER_STYLE_ID, 10)
const lazyStyles = createStyleSheet(LAZY_STYLE_ID, 20)
eagerStyles.clear()
lazyStyles.clear()
const { lazyProcessFunc } = generateTheme(
input,
{
onNewRule(rule, isLazy) {
if (isLazy) {
lazyStyles.addRule(rule)
} else {
eagerStyles.addRule(rule)
}
},
onEagerFinished() {
eagerStyles.ready = true
adoptStyleSheets()
onEagerFinish()
console.info(
'Eager part of theme finished, waiting for lazy part to finish to store cache',
)
},
onLazyFinished() {
lazyStyles.ready = true
adoptStyleSheets()
const data = [eagerStyles.rules, lazyStyles.rules]
const checksum = sum(data)
const cache = {
checksum,
engineChecksum: getEngineChecksum(),
data,
}
useSyncConfigStore().setSimplePrefAndSave({
path: 'themeChecksum',
value: checksum,
})
onFinish(cache)
localforage.setItem('pleromafe-theme-cache', cache)
console.info('Theme cache stored')
},
},
debug,
)
setTimeout(lazyProcessFunc, 0)
}
const extractStyleConfig = ({
sidebarColumnWidth,
contentColumnWidth,
notifsColumnWidth,
themeEditorMinWidth,
emojiReactionsScale,
emojiSize,
navbarSize,
panelHeaderSize,
textSize,
forcedRoundness,
}) => {
const result = {
sidebarColumnWidth,
contentColumnWidth,
notifsColumnWidth,
themeEditorMinWidth:
Number.parseInt(themeEditorMinWidth) === 0
? 'fit-content'
: themeEditorMinWidth,
emojiReactionsScale,
emojiSize,
navbarSize,
panelHeaderSize,
textSize,
}
switch (forcedRoundness) {
case 'disable':
break
case '0':
result.forcedRoundness = '0'
break
case '1':
result.forcedRoundness = '1px'
break
case '2':
result.forcedRoundness = '0.4rem'
break
default:
}
return result
}
const defaultStyleConfig = extractStyleConfig(ROOT_CONFIG)
export const applyStyleConfig = (input) => {
const config = extractStyleConfig(input)
if (config === defaultStyleConfig) {
return
}
const rules = Object.entries(config)
.filter(([, v]) => v)
.map(([k, v]) => `--${k}: ${v}`)
.join(';')
const styleSheet = createStyleSheet('theme-holder', 30)
styleSheet.clear()
styleSheet.addRule(`:root { ${rules} }`)
// TODO find a way to make this not apply to theme previews
if (Object.hasOwn(config, 'forcedRoundness')) {
styleSheet.addRule(` *:not(.preview-block) {
--roundness: var(--forcedRoundness) !important;
}`)
}
styleSheet.ready = true
adoptStyleSheets()
}
const noop = (x) => x
export const getResourcesIndex = async (url, parser = noop) => {
const cache = 'no-store'
const customUrl = url.replace(/\.(\w+)$/, '.custom.$1')
let builtin
let custom
const resourceTransform = (resources) => {
return Object.entries(resources).map(([k, v]) => {
if (typeof v === 'object') {
return [k, () => v]
} else if (typeof v === 'string') {
return [
k,
() =>
promisedRequest({
url: v,
cache,
forceContentType: parser === noop ? null : 'text/plain',
})
.then(({ data: text }) => parser(text))
.catch((e) => {
console.error(e)
return null
}),
]
} else {
console.error(`Unknown resource format - ${k} is a ${typeof v}`)
return [k, null]
}
})
}
try {
const { data: builtinData } = await promisedRequest({
url,
cache,
forceContentType: 'application/json',
})
builtin = resourceTransform(builtinData)
} catch {
builtin = []
console.warn(`Builtin resources at ${url} unavailable`)
}
try {
const { data: customData } = await promisedRequest({
url: customUrl,
cache,
forceContentType: 'application/json',
})
custom = resourceTransform(customData)
} catch {
custom = []
console.warn(`Custom resources at ${customUrl} unavailable`)
}
const total = [...custom, ...builtin]
if (total.length === 0) {
throw new Error(
`Resource at ${url} and ${customUrl} completely unavailable. Panicking`,
)
}
return Object.fromEntries(total)
}

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