75 lines
2.4 KiB
Rust
75 lines
2.4 KiB
Rust
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//! Persistent recent-files store backing the Start page's Recent Documents
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//! panel. Stored as plain text on disk (one path per line, newest first) next
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//! to the other per-user config, so no serialization crate is pulled in just
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//! for this.
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use super::OpenCADStudio;
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use std::path::{Path, PathBuf};
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impl OpenCADStudio {
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/// Record a freshly opened file at the top of the recents list.
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pub(super) fn push_recent(&mut self, path: PathBuf) {
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self.recent_files.retain(|r| r != &path);
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self.recent_files.insert(0, path);
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self.recent_files.truncate(20);
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// Best-effort persist; silent on failure (read-only home, full disk).
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let _ = save_recents(&self.recent_files);
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}
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/// Drop a path from the recents list (manual removal from the Start page).
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pub(super) fn remove_recent(&mut self, path: &Path) {
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self.recent_files.retain(|r| r.as_path() != path);
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let _ = save_recents(&self.recent_files);
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}
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}
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/// Rehydrate the recents list from disk. Call once at app boot.
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pub(super) fn load_recent_files() -> Vec<PathBuf> {
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let Some(path) = recents_file_path() else {
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return vec![];
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};
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let Ok(body) = std::fs::read_to_string(path) else {
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return vec![];
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};
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body.lines()
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.filter(|l| !l.trim().is_empty())
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.map(PathBuf::from)
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.collect()
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}
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fn recents_file_path() -> Option<PathBuf> {
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let base: PathBuf = if cfg!(target_os = "windows") {
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std::env::var_os("APPDATA").map(PathBuf::from)?
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} else if cfg!(target_os = "macos") {
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let home = std::env::var_os("HOME")?;
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let mut p = PathBuf::from(home);
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p.push("Library");
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p.push("Application Support");
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p
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} else if let Some(d) = std::env::var_os("XDG_CONFIG_HOME") {
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PathBuf::from(d)
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} else {
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let home = std::env::var_os("HOME")?;
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let mut p = PathBuf::from(home);
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p.push(".config");
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p
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};
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let mut p = base;
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p.push("OpenCADStudio");
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Some(p.join("recent.txt"))
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}
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fn save_recents(list: &[PathBuf]) -> std::io::Result<()> {
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let Some(path) = recents_file_path() else {
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return Ok(());
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};
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if let Some(dir) = path.parent() {
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std::fs::create_dir_all(dir)?;
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}
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let body: String = list
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.iter()
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.map(|p| p.to_string_lossy().into_owned())
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.collect::<Vec<_>>()
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.join("\n");
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std::fs::write(path, body)
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}
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