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Restructure Communicator (#1510)

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Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>
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Tilman Vatteroth 2021-09-26 11:09:46 +02:00 • committed by GitHub
parent e6830598d5
commit f1e91b4574
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31 changed files with 680 additions and 569 deletions
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29
src/components/render-page/window-post-message-communicator/hooks/use-editor-receive-handler.ts Normal file
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/*
* SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
*
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { useEffect } from 'react'
import { CommunicationMessages, RendererToEditorMessageType } from '../rendering-message'
import { useEditorToRendererCommunicator } from '../../../editor-page/render-context/editor-to-renderer-communicator-context-provider'
import { Handler } from '../window-post-message-communicator'
/**
* Sets the handler for the given message type in the current editor to renderer communicator.
*
* @param messageType The message type that should be used to listen to.
* @param handler The handler that should be called if a message with the given message type was received.
*/
export const useEditorReceiveHandler = <R extends RendererToEditorMessageType>(
messageType: R,
handler: Handler<CommunicationMessages, R>
): void => {
const editorToRendererCommunicator = useEditorToRendererCommunicator()
useEffect(() => {
editorToRendererCommunicator.setHandler(messageType, handler)
return () => {
editorToRendererCommunicator.setHandler(messageType, undefined)
}
}, [editorToRendererCommunicator, handler, messageType])
}