fn local_storage() -> Option<web_sys::Storage> {
web_sys::window()?.local_storage().ok()?
}
pub fn local_storage_get(key: &str) -> Option<String> {
local_storage().map(|storage| storage.get_item(key).ok())??
}
pub fn local_storage_set(key: &str, value: &str) {
local_storage().map(|storage| storage.set_item(key, value));
}
#[cfg(feature = "persistence")]
pub fn load_memory(ctx: &egui::Context) {
if let Some(memory_string) = local_storage_get("egui_memory_ron") {
match ron::from_str(&memory_string) {
Ok(memory) => {
*ctx.memory() = memory;
}
Err(err) => {
tracing::error!("Failed to parse memory RON: {}", err);
}
}
}
}
#[cfg(not(feature = "persistence"))]
pub fn load_memory(_: &egui::Context) {}
#[cfg(feature = "persistence")]
pub fn save_memory(ctx: &egui::Context) {
match ron::to_string(&*ctx.memory()) {
Ok(ron) => {
local_storage_set("egui_memory_ron", &ron);
}
Err(err) => {
tracing::error!("Failed to serialize memory as RON: {}", err);
}
}
}
#[cfg(not(feature = "persistence"))]
pub fn save_memory(_: &egui::Context) {}