re_viewer_context 0.31.2

use re_entity_db::EntityDb;
use re_log_types::{ApplicationId, StoreId};

use crate::{Cache, StoreCache};

/// The current Blueprint and Recording being displayed by the viewer
pub struct ActiveStoreContext<'a> {
    /// The current active blueprint.
    pub blueprint: &'a EntityDb,

    /// The default blueprint (i.e. the one logged from code), if any.
    pub default_blueprint: Option<&'a EntityDb>,

    /// The current active recording.
    ///
    /// If none is active, this will point to a dummy empty recording.
    pub recording: &'a EntityDb,

    /// Per-recording caches.
    pub caches: &'a StoreCache,

    /// Should we enable the heuristics during this frame?
    pub should_enable_heuristics: bool,
}

impl ActiveStoreContext<'_> {
    pub fn is_active(&self, store_id: &StoreId) -> bool {
        self.recording.store_id() == store_id || self.blueprint.store_id() == store_id
    }

    pub fn application_id(&self) -> &ApplicationId {
        self.recording.application_id()
    }

    pub fn recording_store_id(&self) -> &StoreId {
        self.recording.store_id()
    }

    /// Accesses a memoization cache for reading and writing.
    ///
    /// Shorthand for `self.caches.memoizer(f)`.
    pub fn memoizer<C: Cache + Default, R>(&self, f: impl FnOnce(&mut C) -> R) -> R {
        self.caches.memoizer(f)
    }
}