snapshot of https://github.com/RocketChat/Rocket.Chat.git (develop, 2026-09-16; blobs > 131072B omitted)

apps/meteor/client/lib/messageBox.ts

@@ -0,0 +1,75 @@
+import type { IMessage, IRoom } from '@rocket.chat/core-typings';
+import type { Keys as IconName } from '@rocket.chat/icons';
+import type { TranslationKey } from '@rocket.chat/ui-contexts';
+
+import type { ChatAPI } from './chats/ChatAPI';
+
+export type MessageBoxAction = {
+	label: TranslationKey;
+	id: string;
+	icon: IconName;
+	action: (params: { rid: IRoom['_id']; tmid?: IMessage['_id']; event: Event; chat: ChatAPI }) => void;
+	condition?: () => boolean;
+};
+
+class MessageBoxActions {
+	actions: Map<TranslationKey, MessageBoxAction[]> = new Map();
+
+	add(group: TranslationKey, label: TranslationKey, config: Omit<MessageBoxAction, 'label'>) {
+		if (!group && !label && !config) {
+			return;
+		}
+
+		if (!this.actions.has(group)) {
+			this.actions.set(group, []);
+		}
+
+		const actionExists = this.actions.get(group)?.find((action) => action.label === label);
+
+		if (actionExists) {
+			return;
+		}
+
+		this.actions.get(group)?.push({ ...config, label });
+	}
+
+	remove(group: TranslationKey, expression: RegExp) {
+		if (!group || !this.actions.get(group)) {
+			return false;
+		}
+
+		this.actions.set(group, this.actions.get(group)?.filter((action) => !expression.test(action.id)) || []);
+		return this.actions.get(group);
+	}
+
+	get(): Record<TranslationKey, MessageBoxAction[]>;
+
+	get(group: TranslationKey): MessageBoxAction[];
+
+	get(group?: TranslationKey) {
+		if (!group) {
+			return [...this.actions.entries()].reduce<Record<TranslationKey, MessageBoxAction[]>>(
+				(ret, [group, actions]) => {
+					const filteredActions = actions.filter((action) => !action.condition || action.condition());
+					if (filteredActions.length) {
+						ret[group] = filteredActions;
+					}
+					return ret;
+				},
+				{} as Record<TranslationKey, MessageBoxAction[]>,
+			);
+		}
+
+		return this.actions.get(group)?.filter((action) => !action.condition || action.condition());
+	}
+
+	getById(id: MessageBoxAction['id']) {
+		return Object.values(this.actions)
+			.flat()
+			.filter((action) => action.id === id);
+	}
+}
+
+export const messageBox = {
+	actions: new MessageBoxActions(),
+} as const;