@skokenes/slate-yjs
Version:
Yjs bindings for Slate.
69 lines • 6.3 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.useCursors = void 0;
const react_1 = require("react");
const slate_1 = require("slate");
const utils_1 = require("../cursor/utils");
const useCursors = (editor) => {
const [cursors, setCursorData] = react_1.useState([]);
react_1.useEffect(() => {
editor.awareness.on('update', () => {
const newCursorData = Array.from(editor.awareness.getStates())
.filter(([clientId]) => { var _a; return clientId !== ((_a = editor.sharedType.doc) === null || _a === void 0 ? void 0 : _a.clientID); })
.map(([, awareness]) => {
let anchor = null;
let focus = null;
if (awareness.anchor) {
anchor = utils_1.relativePositionToAbsolutePosition(editor.sharedType, awareness.anchor);
}
if (awareness.focus) {
focus = utils_1.relativePositionToAbsolutePosition(editor.sharedType, awareness.focus);
}
return { anchor, focus, data: awareness };
})
.filter((cursor) => cursor.anchor && cursor.focus);
setCursorData(newCursorData);
});
}, [editor]);
const decorate = react_1.useCallback(([node, path]) => {
const ranges = [];
if (slate_1.Text.isText(node) && (cursors === null || cursors === void 0 ? void 0 : cursors.length)) {
cursors.forEach((cursor) => {
if (slate_1.Range.includes(cursor, path)) {
const { focus, anchor, data } = cursor;
const isFocusNode = slate_1.Path.equals(focus.path, path);
const isAnchorNode = slate_1.Path.equals(anchor.path, path);
const isForward = slate_1.Range.isForward({ anchor, focus });
ranges.push({
data,
isForward,
isCaret: isFocusNode,
anchor: {
path,
// eslint-disable-next-line no-nested-ternary
offset: isAnchorNode
? anchor.offset
: isForward
? 0
: node.text.length,
},
focus: {
path,
// eslint-disable-next-line no-nested-ternary
offset: isFocusNode
? focus.offset
: isForward
? node.text.length
: 0,
},
});
}
});
}
return ranges;
}, [cursors]);
return { decorate, cursors };
};
exports.useCursors = useCursors;
exports.default = exports.useCursors;
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