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feat: add user-configurable theme settings

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reya
2026-10-24 09:15:12 +07:00
parent 30da985ac1
commit 8f35ae92b7
10 changed files with 397 additions and 171 deletions
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desktop/src/main.rs
+17 -11
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@@ -16,8 +16,6 @@ use workspace::TAB_BAR_HEIGHT;
actions!(coop, [Quit]);
const BASE_FONT_SIZE: f32 = 16.0;
fn main() {
// Initialize logging
tracing_subscriber::fmt::init();
@@ -66,11 +64,13 @@ fn main() {
settings::init(cx);
let appearance = settings::persisted_appearance_mode();
match apply_native_theme(appearance, cx) {
let font_size = settings::persisted_theme().font_size;
match apply_native_theme(appearance, font_size, cx) {
Ok(()) => start_theme_watcher(appearance, cx),
Err(error) => {
log::warn!("native theme unavailable ({error})");
apply_appearance(appearance, cx);
AppSettings::apply_theme_style(cx);
}
}
@@ -171,31 +171,36 @@ fn quit(_ev: &Quit, cx: &mut App) {
cx.quit();
}
/// Apply the native theme to the app, and then apply the persisted appearance mode
fn apply_native_theme(appearance: AppearanceMode, cx: &mut App) -> native_theme::Result<()> {
/// Apply the native theme to the app, scaled to the user's font size,
/// then layer the persisted theme tuning on top
fn apply_native_theme(
appearance: AppearanceMode,
font_size: f32,
cx: &mut App,
) -> native_theme::Result<()> {
let mut system = native_theme_gpui::SystemTheme::from_system()?;
let native = system.light.defaults.font.size;
if native > 0.0 {
system.accessibility.text_scaling_factor *= BASE_FONT_SIZE / native;
system.accessibility.text_scaling_factor *= font_size / native;
}
apply_system_theme(&system, cx);
apply_appearance(appearance, cx);
// Applying the native theme replaces the whole theme, so the user's
// tuning must be layered on afterwards.
AppSettings::apply_theme_style(cx);
Ok(())
}
/// Honor the appearance mode against the installed (native) palettes.
/// Honor the appearance mode against the installed (native) palettes
fn apply_appearance(appearance: AppearanceMode, cx: &mut App) {
match appearance {
AppearanceMode::System => Theme::sync_system_appearance(None, cx),
AppearanceMode::Light => Theme::change(ThemeMode::Light, None, cx),
AppearanceMode::Dark => Theme::change(ThemeMode::Dark, None, cx),
}
// Like signed, inputs show only their tinted border when focused.
Theme::global_mut(cx).focus_ring = false;
}
/// Holds the watcher subscription so it lives as long as the app.
@@ -225,10 +230,11 @@ fn start_theme_watcher(initial_appearance: AppearanceMode, cx: &mut App) {
log::info!("OS theme changed; re-applying");
cx.update(|cx| {
let appearance = AppSettings::get_appearance_mode(cx);
let font_size = AppSettings::get_theme(cx).font_size;
if let Some(watcher) = cx.try_global::<ThemeWatcher>() {
watcher.appearance.set(appearance);
}
if let Err(error) = apply_native_theme(appearance, cx) {
if let Err(error) = apply_native_theme(appearance, font_size, cx) {
log::warn!("failed to apply updated OS theme ({error})");
}
});