cosmocode / dokuwiki-plugin-prosemirror

import { inputRules, InputRule } from 'prosemirror-inputrules';

import { TextSelection } from 'prosemirror-state';

import SmileyConf from '../../custom/SmileyConf';

/**

 * Smiley input rule

 *

 * @returns {InputRule}

 */

export function smileyRule() {

    return new InputRule(SmileyConf.getRegex(), ((state, match) => {

        const { tr } = state;

        const syntax = match[0];

        // get icon corresponding to the captured group

        let group = 0;

        for (let i = 0; i < match.length; i += 1) {

            if (i > 0 && match[i] === syntax) {

                group = i;

                break;

            }

        }

        const { icon } = SmileyConf.getSmileys()[group - 1];

        tr.setSelection(TextSelection.create(tr.doc, tr.selection.from, tr.selection.from - syntax.length + 1));

        return tr.replaceSelectionWith(state.schema.nodes.smiley.create({ icon, syntax }));

    }));

}

/**

 * Rules for transforming user input

 *

 * @param {prosemirrorModel.Schema} schema

 * @returns {Plugin}

 */

export default function buildInputRules(schema) {

    const rules = [];

    if (schema.nodes.smiley) {

        rules.push(smileyRule());

    }

    return inputRules({ rules });

}