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85 lines
2.9 KiB
TypeScript
85 lines
2.9 KiB
TypeScript
import { useCallback } from 'react';
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import shared from '@joplin/lib/components/shared/note-screen-shared';
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export type HandleMessageCallback = (message: string)=> void;
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export type OnMarkForDownloadCallback = (resource: { resourceId: string })=> void;
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export type HandleScrollCallback = (scrollTop: number)=> void;
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interface MessageCallbacks {
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onMarkForDownload?: OnMarkForDownloadCallback;
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onJoplinLinkClick: HandleMessageCallback;
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onResourceLongPress: HandleMessageCallback;
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onRequestEditResource?: HandleMessageCallback;
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onCheckboxChange: HandleMessageCallback;
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onMainContainerScroll: HandleScrollCallback;
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}
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export default function useOnMessage(
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noteBody: string,
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callbacks: MessageCallbacks,
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) {
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// Dectructure callbacks. Because we have that ({ a: 1 }) !== ({ a: 1 }),
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// we can expect the `callbacks` variable from the last time useOnMessage was called to
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// not equal the current` callbacks` variable, even if the callbacks themselves are the
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// same.
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//
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// Thus, useCallback should depend on each callback individually.
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const {
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onMarkForDownload, onResourceLongPress, onCheckboxChange, onRequestEditResource, onJoplinLinkClick,
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onMainContainerScroll,
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} = callbacks;
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return useCallback((event: any) => {
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// 2021-05-19: Historically this was unescaped twice as it was
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// apparently needed after an upgrade to RN 58 (or 59). However this is
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// no longer needed and in fact would break certain URLs so it can be
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// removed. Keeping the comment here anyway in case we find some URLs
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// that end up being broken after removing the double unescaping.
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// https://github.com/laurent22/joplin/issues/4494
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const msg = event.nativeEvent.data;
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const isScrollMessage = msg.startsWith('onscroll:');
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// Scroll messages are very frequent so we avoid logging them.
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if (!isScrollMessage) {
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// eslint-disable-next-line no-console
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console.info('Got IPC message: ', msg);
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}
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if (isScrollMessage) {
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const eventData = JSON.parse(msg.substring(msg.indexOf(':') + 1));
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if (typeof eventData.scrollTop !== 'number') {
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throw new Error(`Invalid scroll message, ${msg}`);
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}
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onMainContainerScroll?.(eventData.scrollTop);
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} else if (msg.indexOf('checkboxclick:') === 0) {
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const newBody = shared.toggleCheckbox(msg, noteBody);
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onCheckboxChange?.(newBody);
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} else if (msg.indexOf('markForDownload:') === 0) {
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const splittedMsg = msg.split(':');
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const resourceId = splittedMsg[1];
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onMarkForDownload?.({ resourceId: resourceId });
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} else if (msg.startsWith('longclick:')) {
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onResourceLongPress(msg);
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} else if (msg.startsWith('edit:')) {
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onRequestEditResource?.(msg);
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} else if (msg.startsWith('joplin:')) {
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onJoplinLinkClick(msg);
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} else if (msg.startsWith('error:')) {
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console.error(`Webview injected script error: ${msg}`);
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} else {
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onJoplinLinkClick(msg);
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}
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}, [
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noteBody,
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onCheckboxChange,
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onMarkForDownload,
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onJoplinLinkClick,
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onResourceLongPress,
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onRequestEditResource,
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onMainContainerScroll,
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]);
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}
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