Merge pull request #1037 from Flying-Toast/prefers-color-scheme
Automatically use a dark theme according to 'prefers-color-scheme'
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commit
93c9ae5700
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@ -150,6 +150,10 @@ The following configuration options are available:
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files with the ones found in the specified folder.
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- **default-theme:** The theme color scheme to select by default in the
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'Change Theme' dropdown. Defaults to `light`.
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- **preferred-dark-theme:** The default dark theme. This theme will be used if
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the browser requests the dark version of the site via the
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['prefers-color-scheme'](https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-color-scheme)
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CSS media query. Defaults to the same theme as `default-theme`.
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- **curly-quotes:** Convert straight quotes to curly quotes, except for those
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that occur in code blocks and code spans. Defaults to `false`.
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- **mathjax-support:** Adds support for [MathJax](mathjax.md). Defaults to
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@ -217,6 +221,7 @@ description = "The example book covers examples."
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[output.html]
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theme = "my-theme"
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default-theme = "light"
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preferred-dark-theme = "navy"
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curly-quotes = true
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mathjax-support = false
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google-analytics = "123456"
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@ -427,6 +427,9 @@ pub struct HtmlConfig {
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pub theme: Option<PathBuf>,
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/// The default theme to use, defaults to 'light'
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pub default_theme: Option<String>,
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/// The theme to use if the browser requests the dark version of the site.
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/// Defaults to the same as 'default_theme'
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pub preferred_dark_theme: Option<String>,
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/// Use "smart quotes" instead of the usual `"` character.
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pub curly_quotes: bool,
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/// Should mathjax be enabled?
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@ -406,6 +406,15 @@ fn make_data(
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};
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data.insert("default_theme".to_owned(), json!(default_theme));
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let preferred_dark_theme = match html_config.preferred_dark_theme {
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Some(ref theme) => theme,
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None => default_theme,
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};
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data.insert(
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"preferred_dark_theme".to_owned(),
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json!(preferred_dark_theme),
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);
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// Add google analytics tag
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if let Some(ref ga) = html_config.google_analytics {
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data.insert("google_analytics".to_owned(), json!(ga));
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@ -43,7 +43,7 @@
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<!-- Provide site root to javascript -->
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<script type="text/javascript">
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var path_to_root = "{{ path_to_root }}";
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var default_theme = "{{ default_theme }}";
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var default_theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? "{{ preferred_dark_theme }}" : "{{ default_theme }}";
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</script>
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<!-- Work around some values being stored in localStorage wrapped in quotes -->
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