Added internal comments to popup()

packages/frontend/src/os.ts

@@ -204,13 +204,18 @@ export function popup<T extends Component>(
 ): { dispose: () => void } {
 	markRaw(component);
 
+	// Generate a unique ID for this popup.
 	const id = ++popupIdCount;
+
+	// On disposal, remove this popup from the list of open popups.
 	const dispose = () => {
 		// このsetTimeoutが無いと挙動がおかしくなる(autocompleteが閉じなくなる)。Vueのバグ？
 		window.setTimeout(() => {
 			popups.value = popups.value.filter(p => p.id !== id);
 		}, 0);
 	};
+
+	// Bundle the component, props, and events into a state object.
 	const state = {
 		component,
 		props,
@@ -218,8 +223,10 @@ export function popup<T extends Component>(
 		id,
 	};
 
+	// Add the popup to the list of open popups.
 	popups.value.push(state);
 
+	// Return a function that can be called to close the popup.
 	return {
 		dispose,
 	};