434 lines
11 KiB
JavaScript
434 lines
11 KiB
JavaScript
import { times } from 'lodash'
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import { convert } from 'chromatism'
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import { rgb2hex, hex2rgb, rgba2css, getCssColor } from '../color_convert/color_convert.js'
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import { getColors, computeDynamicColor } from '../theme_data/theme_data.service.js'
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// While this is not used anymore right now, I left it in if we want to do custom
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// styles that aren't just colors, so user can pick from a few different distinct
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// styles as well as set their own colors in the future.
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export const setStyle = (href, commit) => {
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/***
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What's going on here?
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I want to make it easy for admins to style this application. To have
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a good set of default themes, I chose the system from base16
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(https://chriskempson.github.io/base16/) to style all elements. They
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all have the base00..0F classes. So the only thing an admin needs to
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do to style Pleroma is to change these colors in that one css file.
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Some default things (body text color, link color) need to be set dy-
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namically, so this is done here by waiting for the stylesheet to be
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loaded and then creating an element with the respective classes.
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It is a bit weird, but should make life for admins somewhat easier.
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***/
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const head = document.head
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const body = document.body
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body.classList.add('hidden')
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const cssEl = document.createElement('link')
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cssEl.setAttribute('rel', 'stylesheet')
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cssEl.setAttribute('href', href)
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head.appendChild(cssEl)
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const setDynamic = () => {
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const baseEl = document.createElement('div')
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body.appendChild(baseEl)
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let colors = {}
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times(16, (n) => {
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const name = `base0${n.toString(16).toUpperCase()}`
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baseEl.setAttribute('class', name)
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const color = window.getComputedStyle(baseEl).getPropertyValue('color')
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colors[name] = color
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})
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body.removeChild(baseEl)
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const styleEl = document.createElement('style')
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head.appendChild(styleEl)
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// const styleSheet = styleEl.sheet
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body.classList.remove('hidden')
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}
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cssEl.addEventListener('load', setDynamic)
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}
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export const applyTheme = (input, commit) => {
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const { rules, theme } = generatePreset(input)
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const head = document.head
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const body = document.body
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body.classList.add('hidden')
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const styleEl = document.createElement('style')
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head.appendChild(styleEl)
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const styleSheet = styleEl.sheet
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styleSheet.toString()
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styleSheet.insertRule(`body { ${rules.radii} }`, 'index-max')
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styleSheet.insertRule(`body { ${rules.colors} }`, 'index-max')
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styleSheet.insertRule(`body { ${rules.shadows} }`, 'index-max')
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styleSheet.insertRule(`body { ${rules.fonts} }`, 'index-max')
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body.classList.remove('hidden')
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// commit('setOption', { name: 'colors', value: htmlColors })
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// commit('setOption', { name: 'radii', value: radii })
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commit('setOption', { name: 'customTheme', value: input })
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commit('setOption', { name: 'colors', value: theme.colors })
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}
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export const getCssShadow = (input, usesDropShadow) => {
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if (input.length === 0) {
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return 'none'
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}
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return input
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.filter(_ => usesDropShadow ? _.inset : _)
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.map((shad) => [
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shad.x,
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shad.y,
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shad.blur,
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shad.spread
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].map(_ => _ + 'px').concat([
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getCssColor(shad.color, shad.alpha),
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shad.inset ? 'inset' : ''
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]).join(' ')).join(', ')
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}
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const getCssShadowFilter = (input) => {
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if (input.length === 0) {
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return 'none'
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}
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return input
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// drop-shadow doesn't support inset or spread
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.filter((shad) => !shad.inset && Number(shad.spread) === 0)
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.map((shad) => [
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shad.x,
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shad.y,
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// drop-shadow's blur is twice as strong compared to box-shadow
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shad.blur / 2
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].map(_ => _ + 'px').concat([
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getCssColor(shad.color, shad.alpha)
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]).join(' '))
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.map(_ => `drop-shadow(${_})`)
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.join(' ')
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}
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export const generateColors = (themeData) => {
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const sourceColors = themeData.colors || themeData
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const isLightOnDark = convert(sourceColors.bg).hsl.l < convert(sourceColors.text).hsl.l
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const mod = isLightOnDark ? 1 : -1
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const { colors, opacity } = getColors(sourceColors, themeData.opacity || {}, mod)
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const htmlColors = Object.entries(colors)
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.reduce((acc, [k, v]) => {
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if (!v) return acc
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acc.solid[k] = rgb2hex(v)
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acc.complete[k] = typeof v.a === 'undefined' ? rgb2hex(v) : rgba2css(v)
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return acc
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}, { complete: {}, solid: {} })
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return {
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rules: {
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colors: Object.entries(htmlColors.complete)
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.filter(([k, v]) => v)
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.map(([k, v]) => `--${k}: ${v}`)
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.join(';')
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},
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theme: {
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colors: htmlColors.solid,
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opacity
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},
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mod
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}
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}
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export const generateRadii = (input) => {
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let inputRadii = input.radii || {}
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// v1 -> v2
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if (typeof input.btnRadius !== 'undefined') {
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inputRadii = Object
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.entries(input)
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.filter(([k, v]) => k.endsWith('Radius'))
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.reduce((acc, e) => { acc[e[0].split('Radius')[0]] = e[1]; return acc }, {})
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}
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const radii = Object.entries(inputRadii).filter(([k, v]) => v).reduce((acc, [k, v]) => {
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acc[k] = v
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return acc
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}, {
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btn: 4,
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input: 4,
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checkbox: 2,
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panel: 10,
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avatar: 5,
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avatarAlt: 50,
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tooltip: 2,
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attachment: 5
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})
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return {
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rules: {
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radii: Object.entries(radii).filter(([k, v]) => v).map(([k, v]) => `--${k}Radius: ${v}px`).join(';')
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},
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theme: {
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radii
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}
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}
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}
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export const generateFonts = (input) => {
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const fonts = Object.entries(input.fonts || {}).filter(([k, v]) => v).reduce((acc, [k, v]) => {
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acc[k] = Object.entries(v).filter(([k, v]) => v).reduce((acc, [k, v]) => {
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acc[k] = v
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return acc
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}, acc[k])
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return acc
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}, {
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interface: {
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family: 'sans-serif'
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},
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input: {
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family: 'inherit'
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},
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post: {
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family: 'inherit'
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},
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postCode: {
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family: 'monospace'
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}
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})
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return {
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rules: {
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fonts: Object
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.entries(fonts)
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.filter(([k, v]) => v)
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.map(([k, v]) => `--${k}Font: ${v.family}`).join(';')
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},
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theme: {
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fonts
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}
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}
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}
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const border = (top, shadow) => ({
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x: 0,
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y: top ? 1 : -1,
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blur: 0,
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spread: 0,
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color: shadow ? '#000000' : '#FFFFFF',
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alpha: 0.2,
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inset: true
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})
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const buttonInsetFakeBorders = [border(true, false), border(false, true)]
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const inputInsetFakeBorders = [border(true, true), border(false, false)]
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const hoverGlow = {
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x: 0,
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y: 0,
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blur: 4,
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spread: 0,
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color: '--faint',
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alpha: 1
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}
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export const DEFAULT_SHADOWS = {
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panel: [{
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x: 1,
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y: 1,
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blur: 4,
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spread: 0,
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color: '#000000',
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alpha: 0.6
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}],
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topBar: [{
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x: 0,
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y: 0,
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blur: 4,
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spread: 0,
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color: '#000000',
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alpha: 0.6
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}],
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popup: [{
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x: 2,
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y: 2,
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blur: 3,
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spread: 0,
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color: '#000000',
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alpha: 0.5
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}],
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avatar: [{
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x: 0,
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y: 1,
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blur: 8,
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spread: 0,
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color: '#000000',
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alpha: 0.7
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}],
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avatarStatus: [],
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panelHeader: [],
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button: [{
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x: 0,
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y: 0,
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blur: 2,
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spread: 0,
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color: '#000000',
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alpha: 1
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}, ...buttonInsetFakeBorders],
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buttonHover: [hoverGlow, ...buttonInsetFakeBorders],
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buttonPressed: [hoverGlow, ...inputInsetFakeBorders],
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input: [...inputInsetFakeBorders, {
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x: 0,
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y: 0,
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blur: 2,
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inset: true,
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spread: 0,
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color: '#000000',
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alpha: 1
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}]
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}
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export const generateShadows = (input, colors, mod) => {
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const shadows = Object.entries({
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...DEFAULT_SHADOWS,
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...(input.shadows || {})
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}).reduce((shadowsAcc, [slotName, shadowDefs]) => {
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const newShadow = shadowDefs.reduce((shadowAcc, def) => [
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...shadowAcc,
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{
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...def,
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color: rgb2hex(computeDynamicColor(
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def.color,
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(variableSlot) => convert(colors[variableSlot]).rgb,
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mod
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))
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}
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], [])
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return { ...shadowsAcc, [slotName]: newShadow }
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}, {})
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return {
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rules: {
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shadows: Object
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.entries(shadows)
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// TODO for v2.1: if shadow doesn't have non-inset shadows with spread > 0 - optionally
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// convert all non-inset shadows into filter: drop-shadow() to boost performance
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.map(([k, v]) => [
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`--${k}Shadow: ${getCssShadow(v)}`,
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`--${k}ShadowFilter: ${getCssShadowFilter(v)}`,
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`--${k}ShadowInset: ${getCssShadow(v, true)}`
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].join(';'))
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.join(';')
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},
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theme: {
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shadows
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}
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}
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}
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export const composePreset = (colors, radii, shadows, fonts) => {
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return {
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rules: {
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...shadows.rules,
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...colors.rules,
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...radii.rules,
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...fonts.rules
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},
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theme: {
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...shadows.theme,
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...colors.theme,
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...radii.theme,
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...fonts.theme
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}
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}
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}
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export const generatePreset = (input) => {
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const colors = generateColors(input)
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return composePreset(
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colors,
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generateRadii(input),
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generateShadows(input, colors.theme.colors, colors.mod),
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generateFonts(input)
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)
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}
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export const getThemes = () => {
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return window.fetch('/static/styles.json')
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.then((data) => data.json())
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.then((themes) => {
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return Object.entries(themes).map(([k, v]) => {
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let promise = null
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if (typeof v === 'object') {
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promise = Promise.resolve(v)
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} else if (typeof v === 'string') {
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promise = window.fetch(v)
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.then((data) => data.json())
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.catch((e) => {
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console.error(e)
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return null
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})
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}
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return [k, promise]
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})
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})
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.then((promises) => {
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return promises
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.reduce((acc, [k, v]) => {
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acc[k] = v
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return acc
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}, {})
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})
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}
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/**
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* This handles compatibility issues when importing v2 theme's shadows to current format
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*
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* Back in v2 shadows allowed you to use dynamic colors however those used pure CSS3 variables
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*/
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export const shadows2to3 = (shadows) => {
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return Object.entries(shadows).reduce((shadowsAcc, [slotName, shadowDefs]) => {
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const isDynamic = ({ color }) => console.log(color) || color.startsWith('--')
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const newShadow = shadowDefs.reduce((shadowAcc, def) => [
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...shadowAcc,
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{
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...def,
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alpha: isDynamic(def) ? 1 : def.alpha
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}
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], [])
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return { ...shadowsAcc, [slotName]: newShadow }
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}, {})
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}
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export const setPreset = (val, commit) => {
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return getThemes()
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.then((themes) => themes[val] ? themes[val] : themes['pleroma-dark'])
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.then((theme) => {
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const isV1 = Array.isArray(theme)
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const data = isV1 ? {} : theme.theme
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if (isV1) {
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const bg = hex2rgb(theme[1])
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const fg = hex2rgb(theme[2])
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const text = hex2rgb(theme[3])
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const link = hex2rgb(theme[4])
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const cRed = hex2rgb(theme[5] || '#FF0000')
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const cGreen = hex2rgb(theme[6] || '#00FF00')
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const cBlue = hex2rgb(theme[7] || '#0000FF')
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const cOrange = hex2rgb(theme[8] || '#E3FF00')
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data.colors = { bg, fg, text, link, cRed, cBlue, cGreen, cOrange }
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}
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// This is a hack, this function is only called during initial load.
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// We want to cancel loading the theme from config.json if we're already
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// loading a theme from the persisted state.
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// Needed some way of dealing with the async way of things.
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// load config -> set preset -> wait for styles.json to load ->
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// load persisted state -> set colors -> styles.json loaded -> set colors
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if (!window.themeLoaded) {
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applyTheme(data, commit)
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}
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})
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}
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