qualia_client_core/wellfair/
accessibility_prefs.rs

1//! Owner accessibility preferences — persisted under storage root.
2
3use std::fs;
4use std::path::Path;
5
6use super::host_state::AccessibilityPreferences;
7
8pub const PREFS_FILE: &str = "wellfair/accessibility.json";
9
10pub fn load(storage_root: impl AsRef<Path>) -> AccessibilityPreferences {
11    let path = storage_root.as_ref().join(PREFS_FILE);
12    if !path.exists() {
13        return AccessibilityPreferences::default();
14    }
15    match fs::read_to_string(&path) {
16        Ok(text) => serde_json::from_str(&text).unwrap_or_default(),
17        Err(_) => AccessibilityPreferences::default(),
18    }
19}
20
21pub fn save(
22    storage_root: impl AsRef<Path>,
23    prefs: &AccessibilityPreferences,
24) -> std::io::Result<()> {
25    let path = storage_root.as_ref().join(PREFS_FILE);
26    if let Some(parent) = path.parent() {
27        fs::create_dir_all(parent)?;
28    }
29    let text =
30        serde_json::to_string_pretty(prefs).map_err(|e| std::io::Error::other(e.to_string()))?;
31    fs::write(&path, text)?;
32    Ok(())
33}
34
35#[cfg(test)]
36mod tests {
37    use super::*;
38
39    #[test]
40    fn accessibility_round_trip() {
41        let dir = tempfile::tempdir().unwrap();
42        let prefs = AccessibilityPreferences {
43            high_contrast: true,
44            reduced_motion: true,
45            text_scale_percent: 125,
46            screen_reader_hints: false,
47        };
48        save(dir.path(), &prefs).unwrap();
49        let loaded = load(dir.path());
50        assert_eq!(loaded, prefs);
51    }
52}
qualia_client_core/wellfair/accessibility_prefs.rs

qualia_client_core/wellfair/
accessibility_prefs.rs
