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Fix heading nav depth

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This fixes an issue where when a heading goes from a larger to a smaller
level, it was going back too far so that subsequent headings would be at
a lower level than they should have been.

Fixes https://github.com/rust-lang/mdBook/issues/2944
This commit is contained in:
Eric Huss
2025-11-19 17:06:49 -08:00
parent 09616e31af
commit 718ceecfa2
2 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
crates/mdbook-html/front-end/templates/toc.js.hbs
View File

@@ -392,7 +392,7 @@ window.customElements.define('mdbook-sidebar-scrollbox', MDBookSidebarScrollbox)
stack.push({level: nextLevel, ol: ol});
}
} else if (level < currentLevel) {
while (stack.length > 1 && stack[stack.length - 1].level >= level) {
while (stack.length > 1 && stack[stack.length - 1].level > level) {
stack.pop();
}
}

2
tests/gui/heading-nav-collapsed.goml
View File

@@ -10,7 +10,7 @@ assert-text: (".current-header", "Heading 1")
assert-attribute: ("li:has(> span > a[href='#heading-12'])", {"class": "header-item"})
assert-attribute: ("li:has(> span > a[href='#heading-21'])", {"class": "header-item"})
assert-property: ("div.on-this-page", {"innerHTML": '<ol class="section"><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-1" class="header-in-summary current-header">Heading 1</a></span><ol class="section"><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-11" class="header-in-summary">Heading 1.1</a></span></li><li class="header-item"><span class="chapter-link-wrapper"><a href="#heading-12" class="header-in-summary">Heading 1.2</a><a class="chapter-fold-toggle header-toggle"><div>❱</div></a></span><ol class="section"><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-121" class="header-in-summary">Heading 1.2.1</a></span></li><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-122" class="header-in-summary">Heading 1.2.2</a></span></li></ol></li></ol></li><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-13" class="header-in-summary">Heading 1.3</a></span></li><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-2" class="header-in-summary">Heading 2</a></span><ol class="section"><li class="header-item"><span class="chapter-link-wrapper"><a href="#heading-21" class="header-in-summary">Heading 2.1</a><a class="chapter-fold-toggle header-toggle"><div>❱</div></a></span><ol class="section"><li class="header-item"><span class="chapter-link-wrapper"><a href="#heading-211" class="header-in-summary">Heading 2.1.1</a><a class="chapter-fold-toggle header-toggle"><div>❱</div></a></span><ol class="section"><li class="header-item"><span class="chapter-link-wrapper"><a href="#heading-2111" class="header-in-summary">Heading 2.1.1.1</a><a class="chapter-fold-toggle header-toggle"><div>❱</div></a></span><ol class="section"><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-21111" class="header-in-summary">Heading 2.1.1.1.1</a></span></li></ol></li></ol></li></ol></li></ol></li></ol>'})
assert-property: ("div.on-this-page", {"innerHTML": '<ol class="section"><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-1" class="header-in-summary current-header">Heading 1</a></span><ol class="section"><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-11" class="header-in-summary">Heading 1.1</a></span></li><li class="header-item"><span class="chapter-link-wrapper"><a href="#heading-12" class="header-in-summary">Heading 1.2</a><a class="chapter-fold-toggle header-toggle"><div>❱</div></a></span><ol class="section"><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-121" class="header-in-summary">Heading 1.2.1</a></span></li><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-122" class="header-in-summary">Heading 1.2.2</a></span></li></ol></li><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-13" class="header-in-summary">Heading 1.3</a></span></li></ol></li><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-2" class="header-in-summary">Heading 2</a></span><ol class="section"><li class="header-item"><span class="chapter-link-wrapper"><a href="#heading-21" class="header-in-summary">Heading 2.1</a><a class="chapter-fold-toggle header-toggle"><div>❱</div></a></span><ol class="section"><li class="header-item"><span class="chapter-link-wrapper"><a href="#heading-211" class="header-in-summary">Heading 2.1.1</a><a class="chapter-fold-toggle header-toggle"><div>❱</div></a></span><ol class="section"><li class="header-item"><span class="chapter-link-wrapper"><a href="#heading-2111" class="header-in-summary">Heading 2.1.1.1</a><a class="chapter-fold-toggle header-toggle"><div>❱</div></a></span><ol class="section"><li class="header-item expanded"><span class="chapter-link-wrapper"><a href="#heading-21111" class="header-in-summary">Heading 2.1.1.1.1</a></span></li></ol></li></ol></li></ol></li></ol></li></ol>'})
// Click 1.2, expands it.
click: "a.header-in-summary[href='#heading-12']"