BookStack/resources/js/wysiwyg/utils/table-copy-paste.ts

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import {NodeClipboard} from "./node-clipboard";
import {CustomTableRowNode} from "../nodes/custom-table-row";
import {$getTableFromSelection, $getTableRowsFromSelection} from "./tables";
import {$getSelection, LexicalEditor} from "lexical";
import {$createCustomTableCellNode, $isCustomTableCellNode} from "../nodes/custom-table-cell";
import {CustomTableNode} from "../nodes/custom-table";
import {TableMap} from "./table-map";
const rowClipboard: NodeClipboard<CustomTableRowNode> = new NodeClipboard<CustomTableRowNode>(CustomTableRowNode);
export function isRowClipboardEmpty(): boolean {
return rowClipboard.size() === 0;
}
export function validateRowsToCopy(rows: CustomTableRowNode[]): void {
let commonRowSize: number|null = null;
for (const row of rows) {
const cells = row.getChildren().filter(n => $isCustomTableCellNode(n));
let rowSize = 0;
for (const cell of cells) {
rowSize += cell.getColSpan() || 1;
if (cell.getRowSpan() > 1) {
throw Error('Cannot copy rows with merged cells');
}
}
if (commonRowSize === null) {
commonRowSize = rowSize;
} else if (commonRowSize !== rowSize) {
throw Error('Cannot copy rows with inconsistent sizes');
}
}
}
export function validateRowsToPaste(rows: CustomTableRowNode[], targetTable: CustomTableNode): void {
const tableColCount = (new TableMap(targetTable)).columnCount;
for (const row of rows) {
const cells = row.getChildren().filter(n => $isCustomTableCellNode(n));
let rowSize = 0;
for (const cell of cells) {
rowSize += cell.getColSpan() || 1;
}
if (rowSize > tableColCount) {
throw Error('Cannot paste rows that are wider than target table');
}
while (rowSize < tableColCount) {
row.append($createCustomTableCellNode());
rowSize++;
}
}
}
export function $cutSelectedRowsToClipboard(): void {
const rows = $getTableRowsFromSelection($getSelection());
validateRowsToCopy(rows);
rowClipboard.set(...rows);
for (const row of rows) {
row.remove();
}
}
export function $copySelectedRowsToClipboard(): void {
const rows = $getTableRowsFromSelection($getSelection());
validateRowsToCopy(rows);
rowClipboard.set(...rows);
}
export function $pasteClipboardRowsBefore(editor: LexicalEditor): void {
const selection = $getSelection();
const rows = $getTableRowsFromSelection(selection);
const table = $getTableFromSelection(selection);
const lastRow = rows[rows.length - 1];
if (lastRow && table) {
const clipboardRows = rowClipboard.get(editor);
validateRowsToPaste(clipboardRows, table);
for (const row of clipboardRows) {
lastRow.insertBefore(row);
}
}
}
export function $pasteRowsAfter(editor: LexicalEditor): void {
const selection = $getSelection();
const rows = $getTableRowsFromSelection(selection);
const table = $getTableFromSelection(selection);
const lastRow = rows[rows.length - 1];
if (lastRow && table) {
const clipboardRows = rowClipboard.get(editor).reverse();
validateRowsToPaste(clipboardRows, table);
for (const row of clipboardRows) {
lastRow.insertAfter(row);
}
}
}