Files
coze-studio/frontend/packages/common/chat-area/chat-area/src/components/message-box/reveal-trigger.tsx
2025-07-31 23:15:48 +08:00

43 lines
1.4 KiB
TypeScript

/*
* Copyright 2025 coze-dev Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { useEffect, useRef } from 'react';
import { useInViewport } from 'ahooks';
import { useMarkMessageRead } from '../../hooks/messages/use-mark-message-read';
import { useChatAreaContext } from '../../hooks/context/use-chat-area-context';
import { useMessageBoxContext } from '../../context/message-box';
export const RevealTrigger = () => {
const boxBottomRef = useRef<null | HTMLElement>(null);
const { message } = useMessageBoxContext();
const reportMarkRead = useMarkMessageRead();
const { eventCallback } = useChatAreaContext();
const [inViewport] = useInViewport(() => boxBottomRef.current);
useEffect(() => {
if (!inViewport) {
return;
}
reportMarkRead(message);
eventCallback?.onMessageBottomShow?.(message);
}, [inViewport]);
return <i ref={boxBottomRef}></i>;
};
RevealTrigger.displayName = 'RevealTrigger';