Struct OcState 

pub struct OcState { /* private fields */ }

The document’s optional-content visibility under its default configuration (/OCProperties /D, ISO 32000-1 §8.11.4.3): the set of groups that configuration turns off. A group’s identity is its indirect reference — groups are shared by reference between the configuration, marked-content properties, and /OC entries (§8.11.2.1).

Everything here is lenient: an entry that is missing, malformed, or will not resolve leaves content visible, never hidden.

Implementations

impl OcState

pub async fn load_with<S: AsyncObjectSource>( src: &S, trailer: &Dict, ) -> Option<OcState>

Builds the state from the catalog’s /OCProperties, or None when the document declares none — no optional content, everything visible. The default /D configuration is applied in specification order: /BaseState (default ON), then /ON, then /OFF, so a group named in both /ON and /OFF ends up off.

pub fn hidden(&self, group: ObjRef) -> bool

Whether the configuration turns group off.

pub async fn visible_with<S: AsyncObjectSource>( &self, src: &S, value: &Object, ) -> bool

Whether content gated by value — the operand of a stream or annotation dictionary’s /OC entry — is visible: a group reference is visible unless the group is off; a membership dictionary follows its /VE visibility expression, else its /P policy over /OCGs. A direct group dictionary has no reference identity to be turned off by, and anything malformed is left visible.

pub async fn props_visible_with<S: AsyncObjectSource>( &self, src: &S, chain: &[Arc<Dict>], props: &Object, ) -> bool

Whether a BDC /OC span is visible: props is the operator’s properties operand — an inline dictionary, or a name looked up in the resource chain’s /Properties category. The lookup keeps the value unresolved, because a group’s on/off identity is its indirect reference; resolving first would read every named group as visible.

Trait Implementations

impl Clone for OcState

fn clone(&self) -> OcState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OcState

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

Formats the value using the given formatter.

impl Default for OcState

fn default() -> OcState

Returns the “default value” for a type.

impl Eq for OcState

impl PartialEq for OcState

fn eq(&self, other: &OcState) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for OcState