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-rw-r--r--examples/todos/Cargo.toml4
-rw-r--r--examples/todos/src/main.rs29
2 files changed, 30 insertions, 3 deletions
diff --git a/examples/todos/Cargo.toml b/examples/todos/Cargo.toml
index c905fc38..f945cde5 100644
--- a/examples/todos/Cargo.toml
+++ b/examples/todos/Cargo.toml
@@ -14,6 +14,10 @@ serde_json = "1.0"
async-std = "1.0"
directories = "2.0"
+[target.'cfg(target_arch = "wasm32")'.dependencies]
+web-sys = { version = "0.3", features = ["Window", "Storage"] }
+wasm-timer = "0.2"
+
[package.metadata.deb]
assets = [
["target/release/todos", "usr/bin/iced-todos", "755"],
diff --git a/examples/todos/src/main.rs b/examples/todos/src/main.rs
index a4009874..7e866b19 100644
--- a/examples/todos/src/main.rs
+++ b/examples/todos/src/main.rs
@@ -557,15 +557,38 @@ impl SavedState {
}
}
-// TODO
#[cfg(target_arch = "wasm32")]
impl SavedState {
+ fn storage() -> Option<web_sys::Storage> {
+ let window = web_sys::window()?;
+
+ window.local_storage().ok()?
+ }
+
async fn load() -> Result<SavedState, LoadError> {
- Err(LoadError::FileError)
+ let storage = Self::storage().ok_or(LoadError::FileError)?;
+
+ let contents = storage
+ .get_item("state")
+ .map_err(|_| LoadError::FileError)?
+ .ok_or(LoadError::FileError)?;
+
+ serde_json::from_str(&contents).map_err(|_| LoadError::FormatError)
}
async fn save(self) -> Result<(), SaveError> {
- Err(SaveError::FileError)
+ let storage = Self::storage().ok_or(SaveError::FileError)?;
+
+ let json = serde_json::to_string_pretty(&self)
+ .map_err(|_| SaveError::FormatError)?;
+
+ storage
+ .set_item("state", &json)
+ .map_err(|_| SaveError::WriteError)?;
+
+ let _ = wasm_timer::Delay::new(std::time::Duration::from_secs(2)).await;
+
+ Ok(())
}
}