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This PR fixes some accessibility issues in our theme docs (i.e. not generated code) flagged by #1513. Here, I target changes that I say are not "systemic", i.e. issues that are easily resolvable by changing our copy and page structure (rather than issues that are created by how kramdown/rouge generates HTML, or reworking our color themes). Here's a quick summary of the manual changes I made: - ~~writing some JS to set `tabindex="0"` on all code blocks; I'd prefer a ruby-native solution, but that involves writing Ruby code, which is incompatible with the pages gem~~ I've moved this to #1533 - rewriting many headings named "Example" which were almost always h4s into more descriptive headings + the appropriate heading level, adding .text-delta to maintain the previous style when necessary - removing some old heading ID hacks in `index-test` that are no longer necessary, since Jekyll does this automatically now - fixing the table headings in `docs/utilities/layout.md` - adding accessible titles + descriptions to the mermaid examples - occasionally, slightly moving around copy to make it align with new headings If you test with #1513 with the following rules disabled: ```rb skipped_rules = [ 'color-contrast', # requires theme auditing # issues w/ autogenerated footnotes 'aria-allowed-role', 'landmark-no-duplicate-contentinfo', 'landmark-unique', 'aria-deprecated-role', # issues w/ markdown checkboxes 'label' ] ``` You should get passing tests :) which is awesome! ## next steps 1. we need to do a pass over our docs copy - very inconsistent. This has been a pain point for me for a while now, just need to find time to sit down and do it. In particular, I'd love to standardize how we display example code (perhaps even hiding it with `<details>` and `<summary>`?), our headings language, what goes into the ToC, our overall writing style, etc. 2. ~~I don't love the JS hack for adding `tabindex="0"` to code blocks (so that they are keyboard-focusable). Ideally, we'd add a custom formatter to rouge to do this, but we can't execute arbitrary Ruby code when users use `github-pages`. I'll look into this some more - maybe rouge would be open to adding this as a feature.~~ see: #1533 4. There are some systemic issues that need a deeper look: 1. The most common issue is still color-contrast. Fixing this involves: - looking at our whites/blacks/grays for core text and highlighting - reevaluating our syntax highlighting themes - fixing dark mode, once and for all :) - also, picking accessible callout colours! 2. kramdown's autogenerated footnotes feature creates a bunch of errors that aXe flags: it seems like a deprecated aria role is being used, and perhaps some misuse of markup. Need to look into this more before I can make a solid attempt at resolving this issue. 3. We demonstrate the use of `- [ ]`, but this generates `<input type="checkbox">` values with no label. I'm not entirely sure what the best way to fix this problem is (without writing custom Ruby code). I'll have to think about this some more. --------- Co-authored-by: Michael Ball <michael@mball.co>
31 lines
1.2 KiB
Markdown
31 lines
1.2 KiB
Markdown
---
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title: Excluding Pages
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parent: Main Navigation
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nav_order: 2
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---
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# Excluding Pages
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For specific pages that you do not wish to include in the main navigation (e.g., a 404 page or a landing page) set `nav_exclude: true` in their front matter.
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## Example: using `nav_exclude`
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{: .text-delta }
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```yaml
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---
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layout: default
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title: 404
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nav_exclude: true
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permalink: /404
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---
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```
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The `nav_exclude` parameter does not affect the [breadcrumbs]({% link docs/navigation/parents.md %}), nor the [lists of child pages]({% link docs/navigation/children.md %}), which you can use to access pages excluded from the main navigation.
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Pages with no `title` are automatically excluded from the main navigation, except when they are in collections (where Jekyll provides default titles based on file names).
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Child pages are automatically excluded from the main navigation when their parent page is excluded.
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{: .warning }
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It is currently possible to exclude all the child pages of a page from the main navigation by setting `has_children: false` in its front matter. However, the `has_children` parameter may be ignored altogether in a future release, so it is better to use the `nav_exclude` parameter on each child page.
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