phx-react
Version:
PHX REACT
110 lines • 5.14 kB
JavaScript
import { useLexicalComposerContext } from '@lexical/react/LexicalComposerContext';
import { useLexicalNodeSelection } from '@lexical/react/useLexicalNodeSelection';
import { mergeRegister } from '@lexical/utils';
import { $getNodeByKey, $getSelection, $isNodeSelection, CLICK_COMMAND, COMMAND_PRIORITY_LOW, KEY_BACKSPACE_COMMAND, KEY_DELETE_COMMAND, } from 'lexical';
import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
import * as React from 'react';
import ImageResizer from '../../ui/ImageResizer';
import ExcalidrawImage from './ExcalidrawImage';
import ExcalidrawModal from './ExcalidrawModal';
import { $isExcalidrawNode } from '.';
export default function ExcalidrawComponent({ data, nodeKey }) {
const [editor] = useLexicalComposerContext();
const [isModalOpen, setModalOpen] = useState(data === '[]' && editor.isEditable());
const imageContainerRef = useRef(null);
const buttonRef = useRef(null);
const [isSelected, setSelected, clearSelection] = useLexicalNodeSelection(nodeKey);
const [isResizing, setIsResizing] = useState(false);
const onDelete = useCallback((event) => {
if (isSelected && $isNodeSelection($getSelection())) {
event.preventDefault();
editor.update(() => {
const node = $getNodeByKey(nodeKey);
if ($isExcalidrawNode(node)) {
node.remove();
}
});
}
return false;
}, [editor, isSelected, nodeKey]);
// Set editor to readOnly if excalidraw is open to prevent unwanted changes
useEffect(() => {
if (isModalOpen) {
editor.setEditable(false);
}
else {
editor.setEditable(true);
}
}, [isModalOpen, editor]);
useEffect(() => mergeRegister(editor.registerCommand(CLICK_COMMAND, (event) => {
const buttonElem = buttonRef.current;
const eventTarget = event.target;
if (isResizing) {
return true;
}
if (buttonElem !== null && buttonElem.contains(eventTarget)) {
if (!event.shiftKey) {
clearSelection();
}
setSelected(!isSelected);
if (event.detail > 1) {
setModalOpen(true);
}
return true;
}
return false;
}, COMMAND_PRIORITY_LOW), editor.registerCommand(KEY_DELETE_COMMAND, onDelete, COMMAND_PRIORITY_LOW), editor.registerCommand(KEY_BACKSPACE_COMMAND, onDelete, COMMAND_PRIORITY_LOW)), [clearSelection, editor, isSelected, isResizing, onDelete, setSelected]);
const deleteNode = useCallback(() => {
setModalOpen(false);
return editor.update(() => {
const node = $getNodeByKey(nodeKey);
if ($isExcalidrawNode(node)) {
node.remove();
}
});
}, [editor, nodeKey]);
const setData = (els, aps, fls) => {
if (!editor.isEditable()) {
return;
}
return editor.update(() => {
const node = $getNodeByKey(nodeKey);
if ($isExcalidrawNode(node)) {
if (els.length > 0 || Object.keys(fls).length > 0) {
node.setData(JSON.stringify({
appState: aps,
elements: els,
files: fls,
}));
}
else {
node.remove();
}
}
});
};
const onResizeStart = () => {
setIsResizing(true);
};
const onResizeEnd = () => {
// Delay hiding the resize bars for click case
setTimeout(() => {
setIsResizing(false);
}, 200);
};
const openModal = useCallback(() => {
setModalOpen(true);
}, []);
const { appState = {}, elements = [], files = {} } = useMemo(() => JSON.parse(data), [data]);
return (React.createElement(React.Fragment, null,
React.createElement(ExcalidrawModal, { closeOnClickOutside: false, initialAppState: appState, initialElements: elements, initialFiles: files, isShown: isModalOpen, onClose: () => setModalOpen(false), onDelete: deleteNode, onSave: (els, aps, fls) => {
editor.setEditable(true);
setData(els, aps, fls);
setModalOpen(false);
} }),
elements.length > 0 && (React.createElement("button", { ref: buttonRef, className: `excalidraw-button ${isSelected ? 'selected' : ''}`, type: 'button' },
React.createElement(ExcalidrawImage, { appState: appState, className: 'image', elements: elements, files: files, imageContainerRef: imageContainerRef }),
isSelected && (React.createElement("div", { className: 'image-edit-button', onClick: openModal, onMouseDown: (event) => event.preventDefault(), role: 'button', tabIndex: 0 })),
(isSelected || isResizing) && (React.createElement(ImageResizer, { editor: editor, imageRef: imageContainerRef, onResizeEnd: onResizeEnd, onResizeStart: onResizeStart }))))));
}
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