Owlibou/owlry
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fix(ui): fall back to Adwaita when system icon theme is broken

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If the configured icon theme (e.g. Sweet-Blue) doesn't exist on disk,
GTK falls back to hicolor which has almost no icons. Detect this by
probing for a standard icon, and set Adwaita as the theme — it's
guaranteed to exist as a GTK4 dependency.

This replaces the broken add_search_path("/usr/share/icons/Adwaita")
approach which doesn't work because search paths are scoped to the
active theme name, not the directory name.
This commit is contained in:
vikingowl
2026-03-28 10:48:39 +01:00
parent 75fa770c94
commit 2b98f0651c
1 changed files with 10 additions and 7 deletions
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17
crates/owlry/src/app.rs
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@@ -185,16 +185,19 @@ impl OwlryApp {
}
fn setup_icon_theme() {
// Ensure we have icon fallbacks for weather/media icons
// These may not exist in all icon themes
if let Some(display) = gtk4::gdk::Display::default() {
let icon_theme = gtk4::IconTheme::for_display(&display);
// Add Adwaita as fallback search path (has weather and media icons)
icon_theme.add_search_path("/usr/share/icons/Adwaita");
icon_theme.add_search_path("/usr/share/icons/breeze");
debug!("Icon theme search paths configured with Adwaita/breeze fallbacks");
// If the system icon theme can't resolve standard icons (e.g., the
// configured theme doesn't exist on disk), fall back to Adwaita
// which is guaranteed to be installed as a GTK4 dependency.
if !icon_theme.has_icon("edit-find-symbolic") {
debug!(
"System icon theme '{}' cannot resolve standard icons, falling back to Adwaita",
icon_theme.theme_name()
);
icon_theme.set_theme_name(Some("Adwaita"));
}
}
}