once again forgotten observer optimization

ui/src/components/Address.vue

@@ -63,7 +63,7 @@ export default defineComponent({
     });
 
     // Identification
-    const { attributes } = useEntity(props.address);
+    const { attributes } = useEntity(props.address, () => visible.value);
     const inferredEntries = identify(attributes);
     const inferredIds: ComputedRef<string[]> = computed(() => {
       return inferredEntries.value.map((eid) => eid.value);

ui/src/lib/entity.ts

@@ -4,9 +4,9 @@ import useSWRV from "swrv";
 import { computed, ComputedRef, Ref } from "vue";
 
 
-export function useEntity(address: string | (() => string)) {
+export function useEntity(address: string | (() => string), condition?: () => Boolean) {
     const { data, error, mutate } = useSWRV<ListingResult, unknown>(
-        () => `/api/obj/${typeof address === "string" ? address : address()}`,
+        () => (condition === undefined || condition()) ? `/api/obj/${typeof address === "string" ? address : address()}` : null,
         fetcher
     );
 
@@ -55,6 +55,7 @@ export function identify(attributes: ComputedRef<[string, IEntry][]>): ComputedR
             .map(([_, entry]) => entry.value.c);
     })
 
+
     // Out of those, retrieve their TYPE_ID entries
     const { data: typeIdListing } = useSWRV<ListingResult, unknown>(() => {
         return isEntries.value && `/api/obj?query=(matches (in ${isEntries.value.map((e) => `"${e}"`).join(" ")}) "TYPE_ID" ?)`;
@@ -66,6 +67,8 @@ export function identify(attributes: ComputedRef<[string, IEntry][]>): ComputedR
         });
     });
 
+
+
     // Finally, filter own object's attributes according to TYPE_IDs
     return computed(() => {
         // For each identity/TYPE_ID pair