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import { hex2rgb } from '../color_convert/color_convert.js'
import { generatePreset } from '../theme_data/theme_data.service.js'
import { init } from '../theme_data/theme_data_3.service.js'
import { convertTheme2To3 } from '../theme_data/theme2_to_theme3.js'
import { getCssRules } from '../theme_data/css_utils.js'
import { defaultState } from '../../modules/config.js'
import { chunk } from 'lodash'
export const applyTheme = async (input) => {
let extraRules
if (input.themeFileVersion === 1) {
extraRules = convertTheme2To3(input)
} else {
const { theme } = generatePreset(input)
extraRules = convertTheme2To3(theme)
}
// Assuming that "worst case scenario background" is panel background since it's the most likely one
const themes3 = init(extraRules, extraRules[0].directives['--bg'].split('|')[1].trim())
const body = document.body
const styleSheet = new CSSStyleSheet()
document.adoptedStyleSheets = [styleSheet]
body.classList.add('hidden')
getCssRules(themes3.eager, themes3.staticVars).forEach(rule => {
// Hacks to support multiple selectors on same component
if (rule.match(/::-webkit-scrollbar-button/)) {
const parts = rule.split(/[{}]/g)
const newRule = [
parts[0],
', ',
parts[0].replace(/button/, 'thumb'),
', ',
parts[0].replace(/scrollbar-button/, 'resizer'),
' {',
parts[1],
'}'
].join('')
styleSheet.insertRule(newRule, 'index-max')
} else {
styleSheet.insertRule(rule, 'index-max')
}
})
body.classList.remove('hidden')
// 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(x => x), themes3.staticVars).forEach(rule => {
if (rule.match(/\.modal-view/)) {
const parts = rule.split(/[{}]/g)
const newRule = [
parts[0],
', ',
parts[0].replace(/\.modal-view/, '#modal'),
' {',
parts[1],
'}'
].join('')
styleSheet.insertRule(newRule, 'index-max')
} else {
styleSheet.insertRule(rule, 'index-max')
}
})
// const t1 = performance.now()
// console.debug('Chunk ' + counter + ' took ' + (t1 - t0) + 'ms')
// t0 = t1
counter += 1
if (counter < chunks.length) {
setTimeout(processChunk, 0)
}
})
}
setTimeout(processChunk, 0)
return Promise.resolve()
}
const configColumns = ({ sidebarColumnWidth, contentColumnWidth, notifsColumnWidth, emojiReactionsScale }) =>
({ sidebarColumnWidth, contentColumnWidth, notifsColumnWidth, emojiReactionsScale })
const defaultConfigColumns = configColumns(defaultState)
export const applyConfig = (config) => {
const columns = configColumns(config)
if (columns === defaultConfigColumns) {
return
}
const head = document.head
const body = document.body
body.classList.add('hidden')
const rules = Object
.entries(columns)
.filter(([k, v]) => v)
.map(([k, v]) => `--${k}: ${v}`).join(';')
const styleEl = document.createElement('style')
head.appendChild(styleEl)
const styleSheet = styleEl.sheet
styleSheet.toString()
styleSheet.insertRule(`:root { ${rules} }`, 'index-max')
body.classList.remove('hidden')
}
export const getThemes = () => {
const cache = 'no-store'
return window.fetch('/static/styles.json', { cache })
.then((data) => data.json())
.then((themes) => {
return Object.entries(themes).map(([k, v]) => {
let promise = null
if (typeof v === 'object') {
promise = Promise.resolve(v)
} else if (typeof v === 'string') {
promise = window.fetch(v, { cache })
.then((data) => data.json())
.catch((e) => {
console.error(e)
return null
})
}
return [k, promise]
})
})
.then((promises) => {
return promises
.reduce((acc, [k, v]) => {
acc[k] = v
return acc
}, {})
})
}
export const getPreset = (val) => {
return getThemes()
.then((themes) => themes[val] ? themes[val] : themes['pleroma-dark'])
.then((theme) => {
const isV1 = Array.isArray(theme)
const data = isV1 ? {} : theme.theme
if (isV1) {
const bg = hex2rgb(theme[1])
const fg = hex2rgb(theme[2])
const text = hex2rgb(theme[3])
const link = hex2rgb(theme[4])
const cRed = hex2rgb(theme[5] || '#FF0000')
const cGreen = hex2rgb(theme[6] || '#00FF00')
const cBlue = hex2rgb(theme[7] || '#0000FF')
const cOrange = hex2rgb(theme[8] || '#E3FF00')
data.colors = { bg, fg, text, link, cRed, cBlue, cGreen, cOrange }
}
return { theme: data, source: theme.source }
})
}
export const setPreset = (val) => getPreset(val).then(data => applyTheme(data))
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