Struct TemplateStore 

pub struct TemplateStore<T> {
    pub error: Option<String>,
    /* private fields */
}

Named, host-readable templates. Without a storage service they live in memory. With a service attached, poll every frame, including while the template UI is closed. A failed read or an unknown document version disables writes until a successful reload, preventing accidental replacement of documents that could not be understood.

Fields

error: Option<String>

Last storage or document error. Failed saves retain the edited template in memory.

Implementations

impl<T: Clone + Serialize + DeserializeOwned> TemplateStore<T>

pub fn new(kind: StoreKind) -> Self

An empty catalog in the supplied namespace, initially kept only in memory.

pub fn entries(&self) -> &BTreeMap<String, T>

Read the catalog, sorted by name, for a host-provided menu or export.

pub fn ready(&self) -> bool

Whether saving, loading or deleting can begin. Reads must finish before writes start.

pub fn set_storage(&mut self, storage: Arc<dyn Storage>)

Attach the host storage service and read its catalog. No document is written on attach.

pub fn reload(&mut self)

Retry reading the catalog after a failed read. While a request is outstanding this does nothing, so reloading cannot race a write or discard an unsaved edit.

pub fn poll(&mut self, ctx: &Context)

Receive storage answers and wake the UI when the next asynchronous answer arrives.

pub fn save(&mut self, name: &str, template: T) -> Result<(), String>

Save or explicitly replace a named template. Blank names and concurrent writes are rejected.

pub fn delete(&mut self, name: &str) -> Result<(), String>

Delete a named template. With storage attached the row remains until deletion succeeds.