| 1 | export const FONT_FAMILIES = ["system", "yahei", "pingfang", "noto", "custom"] as const; |
| 2 | export const MONO_FONT_FAMILIES = ["system", "cascadia", "jetbrains", "sfmono", "custom"] as const; |
| 3 | |
| 4 | export type FontFamily = (typeof FONT_FAMILIES)[number]; |
| 5 | export type MonoFontFamily = (typeof MONO_FONT_FAMILIES)[number]; |
| 6 | |
| 7 | export const DEFAULT_FONT_FAMILY: FontFamily = "system"; |
| 8 | export const DEFAULT_MONO_FONT_FAMILY: MonoFontFamily = "system"; |
| 9 | |
| 10 | const FONT_FAMILY_KEY = "reasonix-font-family"; |
| 11 | const CUSTOM_FONT_KEY = "reasonix-font-family-custom"; |
| 12 | const MONO_FONT_FAMILY_KEY = "reasonix-mono-font-family"; |
| 13 | const CUSTOM_MONO_FONT_KEY = "reasonix-mono-font-family-custom"; |
| 14 | |
| 15 | export function isFontFamily(value: unknown): value is FontFamily { |
| 16 | return typeof value === "string" && (FONT_FAMILIES as readonly string[]).includes(value); |
| 17 | } |
| 18 | |
| 19 | export function isMonoFontFamily(value: unknown): value is MonoFontFamily { |
| 20 | return typeof value === "string" && (MONO_FONT_FAMILIES as readonly string[]).includes(value); |
| 21 | } |
| 22 | |
| 23 | export function getFontFamily(): FontFamily { |
| 24 | const stored = typeof localStorage !== "undefined" ? localStorage.getItem(FONT_FAMILY_KEY) : null; |
| 25 | return isFontFamily(stored) ? stored : DEFAULT_FONT_FAMILY; |
| 26 | } |
| 27 | |
| 28 | export function getMonoFontFamily(): MonoFontFamily { |
| 29 | const stored = typeof localStorage !== "undefined" ? localStorage.getItem(MONO_FONT_FAMILY_KEY) : null; |
| 30 | return isMonoFontFamily(stored) ? stored : DEFAULT_MONO_FONT_FAMILY; |
| 31 | } |
| 32 | |
| 33 | export function getCustomFontName(): string { |
| 34 | if (typeof localStorage === "undefined") return ""; |
| 35 | return localStorage.getItem(CUSTOM_FONT_KEY) ?? ""; |
| 36 | } |
| 37 | |
| 38 | export function getCustomMonoFontName(): string { |
| 39 | if (typeof localStorage === "undefined") return ""; |
| 40 | return localStorage.getItem(CUSTOM_MONO_FONT_KEY) ?? ""; |
| 41 | } |
| 42 | |
| 43 | export function setCustomFontName(name: string): void { |
| 44 | try { |
| 45 | localStorage.setItem(CUSTOM_FONT_KEY, name); |
| 46 | } catch { |
| 47 | /* private mode / no storage */ |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | export function setCustomMonoFontName(name: string): void { |
| 52 | try { |
| 53 | localStorage.setItem(CUSTOM_MONO_FONT_KEY, name); |
| 54 | } catch { |
| 55 | /* private mode / no storage */ |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | export function applyFontFamily(font: FontFamily): void { |
| 60 | if (typeof document === "undefined") return; |
| 61 | const root = document.documentElement; |
| 62 | if (font === DEFAULT_FONT_FAMILY) { |
| 63 | root.removeAttribute("data-font-family"); |
| 64 | root.style.removeProperty("--font-family-custom"); |
| 65 | } else { |
| 66 | root.setAttribute("data-font-family", font); |
| 67 | if (font === "custom") { |
| 68 | const name = getCustomFontName().trim(); |
| 69 | if (name) root.style.setProperty("--font-family-custom", name); |
| 70 | else root.style.removeProperty("--font-family-custom"); |
| 71 | } else { |
| 72 | root.style.removeProperty("--font-family-custom"); |
| 73 | } |
| 74 | } |
| 75 | try { |
| 76 | localStorage.setItem(FONT_FAMILY_KEY, font); |
| 77 | } catch { |
| 78 | /* private mode / no storage */ |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | export function applyMonoFontFamily(font: MonoFontFamily): void { |
| 83 | if (typeof document === "undefined") return; |
| 84 | const root = document.documentElement; |
| 85 | if (font === DEFAULT_MONO_FONT_FAMILY) { |
| 86 | root.removeAttribute("data-mono-font-family"); |
| 87 | root.style.removeProperty("--font-family-mono-custom"); |
| 88 | } else { |
| 89 | root.setAttribute("data-mono-font-family", font); |
| 90 | if (font === "custom") { |
| 91 | const name = getCustomMonoFontName().trim(); |
| 92 | if (name) root.style.setProperty("--font-family-mono-custom", name); |
| 93 | else root.style.removeProperty("--font-family-mono-custom"); |
| 94 | } else { |
| 95 | root.style.removeProperty("--font-family-mono-custom"); |
| 96 | } |
| 97 | } |
| 98 | try { |
| 99 | localStorage.setItem(MONO_FONT_FAMILY_KEY, font); |
| 100 | } catch { |
| 101 | /* private mode / no storage */ |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | export function initFontFamily(): void { |
| 106 | applyFontFamily(getFontFamily()); |
| 107 | applyMonoFontFamily(getMonoFontFamily()); |
| 108 | } |
| 109 |