54 lines
1.4 KiB
TypeScript
54 lines
1.4 KiB
TypeScript
/*
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Copyright 2025 Google LLC
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import type * as A2UI from "./a2ui.js";
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import { BaseEventDetail } from "./base.js";
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const eventInit = {
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bubbles: true,
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cancelable: true,
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composed: true,
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};
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type EnforceEventTypeMatch<T extends Record<string, BaseEventDetail<string>>> =
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{
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[K in keyof T]: T[K] extends BaseEventDetail<infer EventType>
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? EventType extends K
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? T[K]
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: never
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: never;
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};
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export type StateEventDetailMap = EnforceEventTypeMatch<{
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"a2ui.action": A2UI.A2UIAction;
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}>;
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export class StateEvent<
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T extends keyof StateEventDetailMap
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> extends CustomEvent<StateEventDetailMap[T]> {
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static eventName = "a2uiaction";
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constructor(readonly payload: StateEventDetailMap[T]) {
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super(StateEvent.eventName, { detail: payload, ...eventInit });
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}
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}
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declare global {
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interface HTMLElementEventMap {
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a2uiaction: StateEvent<"a2ui.action">;
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}
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}
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