Struct WindowStateStore 

pub struct WindowStateStore { /* private fields */ }

Bounded JSON state store in the app-data directory.

Implementations

impl WindowStateStore

pub fn new(path: PathBuf) -> Self

Create a state store at an explicit path.

pub fn for_app_id(app_id: &str) -> Self

Return the platform app-data state path for an app id.

pub fn save(&self, state: &WindowState) -> Result<(), WindowStateError>

Atomically replace state using a uniquely created sibling temporary file.

Readers see either complete version. This guarantees atomic visibility, not durability across power loss.

On Windows, the state directory must support POSIX-style atomic rename (Windows 10 version 1607 or later on a supported filesystem such as NTFS). Unsupported filesystems return an error rather than weaken this guarantee.

pub fn load_valid( &self, displays: &[DisplayBounds], ) -> Result<Option<WindowState>, WindowStateError>

Load visible state, returning None for absent or stale geometry.

Malformed or oversized input returns a typed error. On Windows, a transient access denial during replacement is retried at most seven times.

pub fn path(&self) -> &Path

Return the storage path.

Trait Implementations

impl Clone for WindowStateStore

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for WindowStateStore

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.