Struct FontCatalog 

pub struct FontCatalog { /* private fields */ }

Implementations

impl FontCatalog

pub fn product( root: impl Into<PathBuf>, locale: impl Into<String>, ) -> FontCatalog

pub fn controlled_fixture( root: impl Into<PathBuf>, locale: impl Into<String>, ) -> FontCatalog

pub fn root(&self) -> &Path

pub fn locale(&self) -> &str

pub fn load(&self) -> Result<FontSystem, FontCatalogError>

Errors

Returns a FontCatalogError when the manifest or any declared font is absent, corrupt, or does not match its declared face metadata.

pub fn load_bytes( &self, bytes: impl FnMut(&str) -> Option<Vec<u8>>, ) -> Result<FontSystem, FontCatalogError>

Load canonical assets from host-provided bytes, with no filesystem or ambient fonts. Every asset is size/hash/face validated before a font system is returned.

Errors

Rejects missing, corrupt, or mismatched assets.

pub fn load_browser_startup_bytes( &self, bytes: impl FnMut(&str) -> Option<Vec<u8>>, ) -> Result<FontSystem, FontCatalogError>

Load the canonical core families required before a browser can mount. Script, symbol, math, and emoji assets remain absent until shaping reports demand and the host supplies their verified bytes.

Errors

Rejects a missing or corrupt startup asset.

pub fn install_browser_asset( &self, system: &mut FontSystem, name: &str, data: Vec<u8>, ) -> Result<bool, FontCatalogError>

Validate and add one canonical optional browser asset to a live font system. Returns false when the exact asset faces are already present.

Errors

Rejects unknown names, corrupt bytes, or mismatched face metadata.

Trait Implementations

impl Clone for FontCatalog

fn clone(&self) -> FontCatalog

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FontCatalog

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

Formats the value using the given formatter.