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use azul_css::{HotReloadHandler, Css};
use std::time::Duration;
use std::path::PathBuf;
pub const DEFAULT_RELOAD_INTERVAL: Duration = Duration::from_millis(500);
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct HotReloader {
file_path: PathBuf,
reload_interval: Duration,
}
impl HotReloader {
pub fn new<P: Into<PathBuf>>(file_path: P) -> Self {
Self { file_path: file_path.into(), reload_interval: DEFAULT_RELOAD_INTERVAL }
}
pub fn with_reload_interval(self, reload_interval: Duration) -> Self {
Self { reload_interval, .. self }
}
}
impl HotReloadHandler for HotReloader {
fn reload_style(&self) -> Result<Css, String> {
use std::fs;
use crate::css;
let file_name = self.file_path.file_name().map(|os_str| os_str.to_string_lossy()).unwrap_or_default();
let reloaded_css = fs::read_to_string(&self.file_path)
.map_err(|e| format!("Error parsing CSS file: \"{}\":\r\nIO Error: {}", file_name, e))?;
css::new_from_str(&reloaded_css).map_err(|e| format!("Error parsing CSS file: \"{}\":\r\n{}", file_name, e))
}
fn get_reload_interval(&self) -> Duration {
self.reload_interval
}
}