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3 changes: 3 additions & 0 deletions .jules/palette.md
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## 2024-08-01 - ๋„ค์ดํ‹ฐ๋ธŒ ๋ธŒ๋ผ์šฐ์ € UI์˜ ๋‹คํฌ ๋ชจ๋“œ ์ง€์› ๊ฐ•์ œ
**ํ•™์Šต:** CSS ๋ฏธ๋””์–ด ์ฟผ๋ฆฌ(`@media (prefers-color-scheme: dark)`)๋ฅผ ํ†ตํ•ด ๋‹คํฌ ๋ชจ๋“œ๋ฅผ ์ง€์›ํ•˜๋”๋ผ๋„, ๋ธŒ๋ผ์šฐ์ €์˜ ๋„ค์ดํ‹ฐ๋ธŒ UI ์š”์†Œ(์Šคํฌ๋กค๋ฐ”, ๊ธฐ๋ณธ ํผ ์ปจํŠธ๋กค, ๊ธฐ๋ณธ ๋ฐฑ๊ทธ๋ผ์šด๋“œ ๋“ฑ)๋Š” ํ…Œ๋งˆ ๋ณ€๊ฒฝ์„ ์ธ์‹ํ•˜์ง€ ๋ชปํ•ด ์–ด๋‘์šด ํ…Œ๋งˆ ํ™˜๊ฒฝ์—์„œ ๋ฐ์€ ์Šคํฌ๋กค๋ฐ”๊ฐ€ ํ‘œ์‹œ๋˜๋Š” ๋“ฑ ์‹œ๊ฐ์  ๋ถˆ์ผ์น˜๋ฅผ ์ดˆ๋ž˜ํ•ฉ๋‹ˆ๋‹ค.
**์กฐ์น˜:** ํ•ญ์ƒ HTML ๋ฌธ์„œ์˜ `<head>` ์˜์—ญ์— `<meta name="color-scheme" content="light dark">` ๋ฉ”ํƒ€ ํƒœ๊ทธ๋ฅผ ๋ช…์‹œ์ ์œผ๋กœ ์ถ”๊ฐ€ํ•˜์—ฌ ๋ธŒ๋ผ์šฐ์ € ์ˆ˜์ค€์—์„œ ์‚ฌ์šฉ์ž์˜ ์‹œ์Šคํ…œ ํ…Œ๋งˆ(๋‹คํฌ ๋ชจ๋“œ ๋“ฑ)๋ฅผ ์™„์ „ํžˆ ์ƒ์†๋ฐ›์•„ ์ผ๊ด€์„ฑ ์žˆ๋Š” ๋„ค์ดํ‹ฐ๋ธŒ UI๋ฅผ ๋ Œ๋”๋งํ•˜๋„๋ก ๋ณด์žฅํ•˜์‹ญ์‹œ์˜ค.
## 2026-07-14 - Root Directory Empty Title Fix
**Learning:** In Java/Kotlin `java.io.File`, `getName()` returns an empty string for the filesystem root directory (e.g., `/`). When generating HTML listings, this results in empty `<title>` and `<h1>` tags, which causes a significant accessibility and UX failure.
**Action:** When using directory names for UI elements or semantic attributes, always verify if the name is empty and provide a clear, descriptive fallback (like `absolutePath`) for root paths.
4 changes: 2 additions & 2 deletions src/main/kotlin/html4tree/main.kt
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Expand Up @@ -327,12 +327,12 @@ ${cssContent} </style>
<meta http-equiv="Content-Security-Policy" content="default-src 'none'; style-src '${styleHash}'; base-uri 'none'; form-action 'none';">
<!-- ๋ณด์•ˆ ํ–ฅ์ƒ: ๋ฆฌํผ๋Ÿฌ๋ฅผ ํ†ตํ•œ ๋””๋ ‰ํ† ๋ฆฌ ๊ฒฝ๋กœ ๋…ธ์ถœ ๋ฐฉ์ง€ -->
<meta name="referrer" content="no-referrer">
<title>${curr_dir.getName().escapeHtml()}</title>
<title>${if (curr_dir.name.isEmpty()) "๋ฃจํŠธ ๋””๋ ‰ํ† ๋ฆฌ" else curr_dir.name.escapeHtml()}</title>
${css}
</head>
<body>
<main>
<h1>${curr_dir.getName().escapeHtml()}</h1>
<h1>${if (curr_dir.name.isEmpty()) "๋ฃจํŠธ ๋””๋ ‰ํ† ๋ฆฌ" else curr_dir.name.escapeHtml()}</h1>
<nav aria-label="๋””๋ ‰ํ† ๋ฆฌ ๋ชฉ๋ก">
<ul role="list">
<li><a class="dir-link" href="./.." aria-label="์ƒ์œ„ ๋””๋ ‰ํ† ๋ฆฌ๋กœ ์ด๋™" title="์ƒ์œ„ ๋””๋ ‰ํ† ๋ฆฌ๋กœ ์ด๋™"><span class="icon" aria-hidden="true">&#x21B0;</span> <span>..</span></a></li>
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12 changes: 12 additions & 0 deletions src/test/kotlin/html4tree/MainTest.kt
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Expand Up @@ -414,6 +414,18 @@ class MainTest {
}
}

@Test
fun testRootDirectoryUXFallback() {
val mockRoot = object : java.io.File(tempDir.absolutePath) {
override fun getName(): String = ""
}
process_dir(mockRoot)
val indexFile = java.io.File(tempDir, "index.html")
val htmlContent = indexFile.readText()
assertTrue(htmlContent.contains("<title>๋ฃจํŠธ ๋””๋ ‰ํ† ๋ฆฌ</title>"))
assertTrue(htmlContent.contains("<h1>๋ฃจํŠธ ๋””๋ ‰ํ† ๋ฆฌ</h1>"))
}

@Test
fun testGoWithMaxLevel() {
val subdir = File(tempDir, "subdir")
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