breadbar/src/theme.rs
2026-05-17 13:17:31 +08:00

74 lines
2.3 KiB
Rust

use gtk4::CssProvider;
use serde::Deserialize;
#[derive(Deserialize)]
struct WalColors {
special: Special,
colors: Colors,
}
#[derive(Deserialize)]
struct Special {
background: String,
}
#[derive(Deserialize)]
struct Colors {
color0: String,
color1: String,
color15: String,
}
fn hex_to_rgba(hex: &str, alpha: f32) -> String {
let h = hex.trim_start_matches('#');
let r = u8::from_str_radix(&h[0..2], 16).unwrap_or(0);
let g = u8::from_str_radix(&h[2..4], 16).unwrap_or(0);
let b = u8::from_str_radix(&h[4..6], 16).unwrap_or(0);
format!("rgba({r},{g},{b},{alpha})")
}
fn load_css() -> String {
let home = std::env::var("HOME").unwrap_or_default();
let text = std::fs::read_to_string(format!("{home}/.cache/wal/colors.json"))
.unwrap_or_default();
let (bg, surface, fg, accent) = if let Ok(wal) = serde_json::from_str::<WalColors>(&text) {
(wal.special.background, wal.colors.color0, wal.colors.color15, wal.colors.color1)
} else {
(
"#1e1e2e".to_string(),
"#181825".to_string(),
"#cdd6f4".to_string(),
"#89b4fa".to_string(),
)
};
format!(
"window.breadbar {{ background-color: {bg_rgba}; }}\
.workspace-btn {{ background: {surface}; color: {fg}; border-radius: 4px;\
border: none; min-width: 24px; padding: 0 8px; }}\
.workspace-btn:hover, .workspace-btn.active {{ background: {accent}; }}\
label {{ color: {fg}; }}\
window.breadbar-notification {{ background-color: alpha({bg_plain}, 0.95); }}\
.notification-card {{ background: {surface}; border-radius: 6px;\
padding: 10px; margin-bottom: 4px; }}\
.notification-summary {{ font-weight: bold; color: {fg}; }}\
.notification-app {{ color: {fg}; opacity: 0.6; }}\
.notification-body {{ color: {fg}; }}",
bg_plain = bg,
bg_rgba = hex_to_rgba(&bg, 0.92),
surface = surface,
fg = fg,
accent = accent,
)
}
pub fn apply() {
let provider = CssProvider::new();
provider.load_from_string(&load_css());
gtk4::style_context_add_provider_for_display(
&gtk4::gdk::Display::default().expect("no display"),
&provider,
gtk4::STYLE_PROVIDER_PRIORITY_APPLICATION,
);
}