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import { Table } from '@tiptap/extension-table'
import { Node, mergeAttributes } from '@tiptap/core'
import { TextSelection } from 'prosemirror-state'
import { isInTable, moveCellForward, selectionCell } from 'prosemirror-tables'
/*
* Markdown tables do not include captions.
* We still need to parse them though
* because otherwise tiptap will try to insert their text content
* and put it in the top row of the table.
*/
const tableCaption = Node.create({
name: 'tableCaption',
content: 'inline*',
addAttributes() {
return {}
},
renderHTML() {
return ['caption']
},
toMarkdown(state, node) {
},
parseHTML() {
return [
{ tag: 'table caption', priority: 90 },
]
},
})
function createTable(schema, rowsCount, colsCount, cellContent) {
const headerCells = []
const cells = []
for (let index = 0; index < colsCount; index += 1) {
const cell = schema.nodes.tableCell.createAndFill()
if (cell) {
cells.push(cell)
}
const headerCell = schema.nodes.tableHeader.createAndFill()
if (headerCell) {
headerCells.push(headerCell)
}
}
const headRow = schema.nodes.tableHeadRow.createChecked(null, headerCells)
const rows = []
for (let index = 1; index < rowsCount; index += 1) {
rows.push(schema.nodes.tableRow.createChecked(null, cells))
}
return schema.nodes.table.createChecked(null, [headRow, ...rows])
}
function findSameCellInNextRow($cell) {
if ($cell.index(-1) === $cell.node(-1).childCount - 1) {
return null
}
let cellStart = $cell.after()
const table = $cell.node(-1)
for (let row = $cell.indexAfter(-1); row < table.childCount; row++) {
const rowNode = table.child(row)
if (rowNode.childCount >= $cell.index()) {
for (let cell = 0; cell < $cell.index(); cell++) {
const cellNode = rowNode.child(cell)
cellStart += cellNode.nodeSize
}
return cellStart + 1
}
cellStart += rowNode.nodeSize
}
}
export default Table.extend({
content: 'tableCaption? tableHeadRow tableRow*',
addExtensions() {
return [
tableCaption,
]
},
addCommands() {
return {
...this.parent(),
insertTable: () => ({ tr, dispatch, editor }) => {
if (isInTable(tr)) return false
const node = createTable(editor.schema, 3, 3, true)
if (dispatch) {
const offset = tr.selection.anchor + 1
tr.replaceSelectionWith(node)
.scrollIntoView()
.setSelection(TextSelection.near(tr.doc.resolve(offset)))
}
return true
},
// move to the next node after the table from the last cell
leaveTable: () => ({ tr, dispatch, editor }) => {
if (!isInTable(tr)) return false
const { $head, empty } = tr.selection
if (!empty) return false
// the selection can temporarily be inside the table but outside of cells.
const tableDepth = $head.depth < 3 ? 1 : $head.depth - 2
if (dispatch) {
const $next = tr.doc.resolve($head.after(tableDepth) + 1)
const selection = TextSelection.near($next)
dispatch(tr.setSelection(selection).scrollIntoView())
}
return true
},
goToNextRow: () => ({ tr, dispatch, editor }) => {
if (!isInTable(tr)) return false
const cell = findSameCellInNextRow(selectionCell(tr))
if (cell == null) return
if (dispatch) {
const $cell = tr.doc.resolve(cell)
const selection = TextSelection.between($cell, moveCellForward($cell))
dispatch(tr.setSelection(selection).scrollIntoView())
}
return true
},
}
},
renderHTML({ HTMLAttributes }) {
return ['table', mergeAttributes(this.options.HTMLAttributes, HTMLAttributes), 0]
},
toMarkdown(state, node) {
state.renderContent(node)
state.closeBlock(node)
},
addKeyboardShortcuts() {
return {
...this.parent(),
Tab: () => this.editor.commands.goToNextCell() || this.editor.commands.leaveTable(),
Enter: () => {
if (this.editor.commands.goToNextRow()) {
return true
}
if (!this.editor.can().addRowAfter()) {
return false
}
return this.editor
.chain()
.addRowAfter()
.goToNextRow()
.run()
},
}
},
})
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