Leonard
c866ae602b
* Add `#[component]` attribute + system for creating component attributes + other stuff * Delete inlineprops.rs * Update inline_props.rs * Cargo fmt * Fix clippy warnings and paths in props/mods.rs * Include where clause in `#[inline_props]` output * Allow Clippy type complexity in `LinkProps` * Allow the type complexity lint for the entire link.rs file * Remove snake_case -> PascalCase converter, but rather enforce PascalCase Also: - Put the second function inside the main one instead of besides it. - Simplify * Simplify type check lints so they don't return false positives They will not always work, but they won't return any false positives, like for aliases. This is likely going to be replaced by a more polished Clippy-backed linting system. * Fix #583 * Cargo fmt * Add docs for `deserialize()` and remove useless comment * Add `#[component]` to prelude * Merge branch 'master' of https://github.com/tigerros/dioxus * #[inline_props] is no more. Except in the docs folder, but that's going to be removed * Remove docs folder * Remove docs from workspace * Resolve `DeserializerOutput` conversation
104 lines
2.6 KiB
Rust
104 lines
2.6 KiB
Rust
use std::str::FromStr;
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use crate::routable::Routable;
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use super::HistoryProvider;
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/// A [`HistoryProvider`] that stores all navigation information in memory.
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pub struct MemoryHistory<R: Routable> {
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current: R,
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history: Vec<R>,
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future: Vec<R>,
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}
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impl<R: Routable> MemoryHistory<R>
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where
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<R as FromStr>::Err: std::fmt::Display,
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{
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/// Create a [`MemoryHistory`] starting at `path`.
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///
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/// ```rust
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/// # use dioxus_router::prelude::*;
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/// # use dioxus::prelude::*;
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/// # #[component]
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/// # fn Index(cx: Scope) -> Element { todo!() }
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/// # #[component]
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/// # fn OtherPage(cx: Scope) -> Element { todo!() }
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/// #[derive(Clone, Routable, Debug, PartialEq)]
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/// enum Route {
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/// #[route("/")]
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/// Index {},
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/// #[route("/some-other-page")]
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/// OtherPage {},
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/// }
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///
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/// let mut history = MemoryHistory::<Route>::with_initial_path(Route::Index {});
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/// assert_eq!(history.current_route(), Route::Index {});
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/// assert_eq!(history.can_go_back(), false);
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/// ```
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pub fn with_initial_path(path: R) -> Self {
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Self {
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current: path,
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history: Vec::new(),
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future: Vec::new(),
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}
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}
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}
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impl<R: Routable> Default for MemoryHistory<R>
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where
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<R as FromStr>::Err: std::fmt::Display,
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{
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fn default() -> Self {
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Self {
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current: "/".parse().unwrap_or_else(|err| {
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panic!("index route does not exist:\n{}\n use MemoryHistory::with_initial_path to set a custom path", err)
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}),
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history: Vec::new(),
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future: Vec::new(),
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}
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}
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}
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impl<R: Routable> HistoryProvider<R> for MemoryHistory<R> {
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fn current_route(&self) -> R {
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self.current.clone()
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}
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fn can_go_back(&self) -> bool {
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!self.history.is_empty()
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}
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fn go_back(&mut self) {
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if let Some(last) = self.history.pop() {
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let old = std::mem::replace(&mut self.current, last);
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self.future.push(old);
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}
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}
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fn can_go_forward(&self) -> bool {
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!self.future.is_empty()
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}
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fn go_forward(&mut self) {
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if let Some(next) = self.future.pop() {
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let old = std::mem::replace(&mut self.current, next);
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self.history.push(old);
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}
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}
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fn push(&mut self, new: R) {
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// don't push the same route twice
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if self.current.to_string() == new.to_string() {
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return;
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}
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let old = std::mem::replace(&mut self.current, new);
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self.history.push(old);
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self.future.clear();
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}
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fn replace(&mut self, path: R) {
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self.current = path;
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}
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}
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