godo.js/src-js/godo.js

101 lines
2.8 KiB
JavaScript

import {EditorState, Plugin} from 'prosemirror-state'
import {EditorView} from 'prosemirror-view'
import {history} from 'prosemirror-history'
import {keymap} from 'prosemirror-keymap'
import {baseKeymap} from 'prosemirror-commands'
import {DOMParser, DOMSerializer} from 'prosemirror-model'
import {buildKeymap} from './godo-additional-keymap.mjs'
import {basicSchema, headersSchema, listSchema, fullSchema} from './godo-schemas.mjs'
import {Menu, blocks, marks} from './godo-menus.mjs'
function menuPlugin (menu) {
return new Plugin({
view (editorView) {
let menuView = new Menu(menu, editorView)
editorView.dom.parentNode.insertBefore(menuView.el, editorView.dom)
return menuView
},
})
}
export default class Godo {
constructor (textarea, options) {
this.textarea = textarea
this.textarea.hidden = true
this.textarea.style.display = 'none'
let displayBlocksMenu = true
this.defaultOptions = {
schema: 'full',
headingLevels: [3, 4],
}
this.options = Object.assign(this.defaultOptions, options)
this.options.headingLevels = this.options.headingLevels.slice(0, 3)
this.schema = (() => {
switch (this.options.schema) {
case 'basic':
displayBlocksMenu = false
return basicSchema
case 'headers':
return headersSchema
case 'list':
return listSchema
case 'full':
default:
return fullSchema
}
})()
this.editorWrapper = document.createElement('div')
this.editorWrapper.className = 'godo'
textarea.insertAdjacentElement('afterend', this.editorWrapper)
this.marksMenu = menuPlugin(marks(this.schema))
this.blocksMenu = menuPlugin(blocks(this.schema, this.options.headingLevels))
let pluginsList = [
history(),
keymap(buildKeymap(this.schema, null, this.options)),
keymap(baseKeymap),
this.marksMenu,
]
if (displayBlocksMenu && !textarea.readOnly) pluginsList.push(this.blocksMenu)
this.state = EditorState.create({
schema: this.schema,
doc: DOMParser.fromSchema(this.schema).parse(this.getTextAreaContent()),
plugins: pluginsList,
})
this.view = new EditorView(this.editorWrapper, {
state: this.state,
editable: () => !textarea.readOnly,
attributes: {
class: 'godo--editor',
},
})
this.textarea.form.addEventListener('submit', () => {
textarea.value = this.getHTML()
})
}
getTextAreaContent () {
const w = document.createElement('div')
w.innerHTML = this.textarea.value
return w
}
getHTML () {
const div = document.createElement('div')
const fragment = DOMSerializer
.fromSchema(this.schema)
.serializeFragment(this.view.state.doc.content)
div.appendChild(fragment)
return div.innerHTML
}
}