92 lines
2.6 KiB
JavaScript
92 lines
2.6 KiB
JavaScript
/*
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Copyright 2018 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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// Based originally on slate-plain-serializer
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import { Block } from 'slate';
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/**
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* Plain text serializer, which converts a Slate `value` to a plain text string,
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* serializing pills into various different formats as required.
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*
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* @type {PlainWithPillsSerializer}
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*/
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class PlainWithPillsSerializer {
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/*
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* @param {String} options.pillFormat - either 'md', 'plain', 'id'
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*/
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constructor(options = {}) {
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const {
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pillFormat = 'plain',
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} = options;
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this.pillFormat = pillFormat;
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}
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/**
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* Serialize a Slate `value` to a plain text string,
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* serializing pills as either MD links, plain text representations or
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* ID representations as required.
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*
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* @param {Value} value
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* @return {String}
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*/
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serialize = value => {
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return this._serializeNode(value.document);
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}
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/**
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* Serialize a `node` to plain text.
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*
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* @param {Node} node
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* @return {String}
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*/
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_serializeNode = node => {
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if (
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node.object == 'document' ||
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(node.object == 'block' && Block.isBlockList(node.nodes))
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) {
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return node.nodes.map(this._serializeNode).join('\n');
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} else if (node.type == 'emoji') {
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return node.data.get('emojiUnicode');
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} else if (node.type == 'pill') {
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const completion = node.data.get('completion');
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// over the wire the @room pill is just plaintext
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if (completion === '@room') return completion;
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switch (this.pillFormat) {
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case 'plain':
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return completion;
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case 'md':
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return `[${ completion }](${ node.data.get('href') })`;
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case 'id':
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return node.data.get('completionId') || completion;
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}
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} else if (node.nodes) {
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return node.nodes.map(this._serializeNode).join('');
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} else {
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return node.text;
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}
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}
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}
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/**
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* Export.
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*
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* @type {PlainWithPillsSerializer}
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*/
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export default PlainWithPillsSerializer;
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