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/*
* @copyright Copyright (c) 2019 Julius Härtl <jus@bitgrid.net>
*
* @author Julius Härtl <jus@bitgrid.net>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
import { ListItem as TiptapListItem } from 'tiptap-extensions'
import { Plugin } from 'tiptap'
import { toggleList, wrappingInputRule } from 'tiptap-commands'
import { findParentNode, findParentNodeClosestToPos } from 'prosemirror-utils'
const TYPES = {
BULLET: 0,
CHECKBOX: 1,
}
const getParentList = (schema, selection) => {
return findParentNode(function(node) {
return node.type === schema.nodes.list_item
})(selection)
}
export default class ListItem extends TiptapListItem {
get defaultOptions() {
return {
nested: true,
}
}
get schema() {
return {
attrs: {
done: {
default: false,
},
type: {
default: TYPES.BULLET,
},
},
draggable: false,
content: 'paragraph block*',
toDOM: node => {
if (node.attrs.type === TYPES.BULLET) {
return ['li', 0]
}
const listAttributes = { class: 'checkbox-item' }
const checkboxAttributes = { type: 'checkbox', class: '', contenteditable: false }
if (node.attrs.done) {
checkboxAttributes.checked = true
listAttributes.class += ' checked'
}
return [
'li',
listAttributes,
[
'input',
checkboxAttributes,
],
[
'label',
0,
],
]
},
parseDOM: [
{
priority: 100,
tag: 'li',
getAttrs: el => {
const checkbox = el.querySelector('input[type=checkbox]')
return { done: checkbox && checkbox.checked, type: checkbox ? TYPES.CHECKBOX : TYPES.BULLET }
},
},
],
toMarkdown: (state, node) => {
if (node.attrs.type === TYPES.CHECKBOX) {
state.write(`[${node.attrs.done ? 'x' : ' '}] `)
}
state.renderContent(node)
},
}
}
commands({ type, schema }) {
return {
bullet_list_item: () => {
return (state, dispatch, view) => {
return toggleList(schema.nodes.bullet_list, type)(state, dispatch, view)
}
},
todo_item: () => {
return (state, dispatch, view) => {
const schema = state.schema
const selection = state.selection
const $from = selection.$from
const $to = selection.$to
const range = $from.blockRange($to)
let tr = state.tr
let parentList = getParentList(schema, selection)
if (typeof parentList === 'undefined') {
toggleList(schema.nodes.bullet_list, type)(state, (_transaction) => {
tr = _transaction
}, view)
parentList = getParentList(schema, tr.selection)
}
if (!range || typeof parentList === 'undefined') {
return false
}
tr.setNodeMarkup(parentList.pos, schema.nodes.list_item, { type: parentList.node.attrs.type === TYPES.CHECKBOX ? TYPES.BULLET : TYPES.CHECKBOX })
tr.scrollIntoView()
if (dispatch) {
dispatch(tr)
}
}
},
}
}
inputRules({ type }) {
return [
wrappingInputRule(/^\s*([-+*])\s(\[ ?\])\s$/, type, (match) => {
return {
type: TYPES.CHECKBOX,
}
}),
wrappingInputRule(/^\s*([-+*])\s(\[(x|X)\])\s$/, type, (match) => {
return {
type: TYPES.CHECKBOX,
done: true,
}
}),
wrappingInputRule(/^\s*([-+*])\s[^\s[]$/, type),
]
}
get plugins() {
return [
new Plugin({
props: {
handleClick: (view, pos, event) => {
const state = view.state
const schema = state.schema
const coordinates = view.posAtCoords({ left: event.clientX, top: event.clientY })
const position = state.doc.resolve(coordinates.pos)
const parentList = findParentNodeClosestToPos(position, function(node) {
return node.type === schema.nodes.list_item
})
const isListClicked = event.target.tagName.toLowerCase() === 'li'
if (typeof parentList === 'undefined' || parentList.node.attrs.type !== TYPES.CHECKBOX || !isListClicked) {
return
}
const tr = state.tr
tr.setNodeMarkup(parentList.pos, schema.nodes.list_item, { done: !parentList.node.attrs.done, type: TYPES.CHECKBOX })
view.dispatch(tr)
},
},
}),
]
}
}
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