router.rs
| 1 | //! Tiny hash-based router: `#/r/{root_id}/{segment/...}` (files) or `#/` |
| 2 | //! (root picker). The URL hash is the single source of truth; the |
| 3 | //! `Location` signal in the app mirrors it. |
| 4 | |
| 5 | #[derive(Clone, Debug, PartialEq, Eq)] |
| 6 | pub struct Location { |
| 7 | /// None = the top-level "folders" view (root picker). |
| 8 | pub root_id: Option<i64>, |
| 9 | /// Path segments relative to the current root. |
| 10 | pub path: Vec<String>, |
| 11 | } |
| 12 | |
| 13 | impl Location { |
| 14 | pub const fn root() -> Self { |
| 15 | Self { |
| 16 | root_id: None, |
| 17 | path: Vec::new(), |
| 18 | } |
| 19 | } |
| 20 | } |
| 21 | |
| 22 | pub fn parse_location() -> Location { |
| 23 | let hash = web_sys::window() |
| 24 | .and_then(|w| w.location().hash().ok()) |
| 25 | .unwrap_or_default(); |
| 26 | let h = hash.trim_start_matches('#'); |
| 27 | let h = h.trim_start_matches('/'); |
| 28 | let mut parts = h.split('/').filter(|s| !s.is_empty()); |
| 29 | match parts.next() { |
| 30 | Some("r") => match parts.next().and_then(|s| s.parse().ok()) { |
| 31 | Some(root_id) => Location { |
| 32 | root_id: Some(root_id), |
| 33 | path: parts.map(String::from).collect(), |
| 34 | }, |
| 35 | None => Location::root(), |
| 36 | }, |
| 37 | _ => Location::root(), |
| 38 | } |
| 39 | } |
| 40 | |
| 41 | pub fn location_to_hash(loc: &Location) -> String { |
| 42 | match loc.root_id { |
| 43 | None => "#/".to_string(), |
| 44 | Some(id) => { |
| 45 | let mut s = format!("#/r/{id}"); |
| 46 | for seg in &loc.path { |
| 47 | s.push('/'); |
| 48 | s.push_str(seg); |
| 49 | } |
| 50 | s |
| 51 | } |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | /// Change the app location (updates the hash; the app listens for hashchange). |
| 56 | pub fn navigate(loc: &Location) { |
| 57 | if let Some(w) = web_sys::window() { |
| 58 | let _ = w.location().set_hash(&location_to_hash(loc)); |
| 59 | } |
| 60 | } |
| 61 |