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fix: auto-detect system theme changes at runtime #7162

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fix: auto-detect system theme changes at runtime #7162

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30 changes: 28 additions & 2 deletions packages/opencode/src/cli/cmd/tui/context/theme.tsx
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
import { SyntaxStyle, RGBA, type TerminalColors } from "@opentui/core"
import path from "path"
import { createEffect, createMemo, onMount } from "solid-js"
import { createEffect, createMemo, onCleanup, onMount } from "solid-js"
import { useSync } from "@tui/context/sync"
import { createSimpleContext } from "./helper"
import aura from "./theme/aura.json" with { type: "json" }
Expand Down Expand Up @@ -311,6 +311,12 @@ export const { use: useTheme, provider: ThemeProvider } = createSimpleContext({
})
})

function detectMode(bg: string): "dark" | "light" {
const rgba = RGBA.fromHex(bg)
const luminance = 0.299 * rgba.r + 0.587 * rgba.g + 0.114 * rgba.b
return luminance > 0.5 ? "light" : "dark"
}

function resolveSystemTheme() {
console.log("resolved system theme")
renderer
Expand All @@ -329,9 +335,12 @@ export const { use: useTheme, provider: ThemeProvider } = createSimpleContext({
}
return
}
const bg = colors.defaultBackground ?? colors.palette[0]
const mode = detectMode(bg)
setStore(
produce((draft) => {
draft.themes.system = generateSystem(colors, store.mode)
draft.mode = mode
draft.themes.system = generateSystem(colors, mode)
if (store.active === "system") {
draft.ready = true
}
Expand All @@ -355,6 +364,23 @@ export const { use: useTheme, provider: ThemeProvider } = createSimpleContext({
const syntax = createMemo(() => generateSyntax(values()))
const subtleSyntax = createMemo(() => generateSubtleSyntax(values()))

const intervalId = setInterval(async () => {
renderer.clearPaletteCache() // opentui caches palette, must clear to get fresh values
const colors = await renderer.getPalette({ size: 1 })
const bg = colors.defaultBackground ?? colors.palette[0]
if (!bg) return
const mode = detectMode(bg)
if (mode !== store.mode) {
if (store.active === "system") {
resolveSystemTheme()
} else {
setStore("mode", mode)
kv.set("theme_mode", mode)
}
}
}, 5000)
onCleanup(() => clearInterval(intervalId))

return {
theme: new Proxy(values(), {
get(_target, prop) {
Expand Down