speech-rule-engine/js/highlighter/mml_highlighter.js

A standalone speech rule engine for XML structures, based on the original engine from ChromeVox.

import { AbstractHighlighter } from './abstract_highlighter.js';
export class MmlHighlighter extends AbstractHighlighter {
    constructor() {
        super();
        this.mactionName = 'maction';
    }
    highlightNode(node) {
        let style = node.getAttribute('style');
        style += ';background-color: ' + this.colorString().background;
        style += ';color: ' + this.colorString().foreground;
        node.setAttribute('style', style);
        return { node: node };
    }
    unhighlightNode(info) {
        let style = info.node.getAttribute('style');
        style = style.replace(';background-color: ' + this.colorString().background, '');
        style = style.replace(';color: ' + this.colorString().foreground, '');
        info.node.setAttribute('style', style);
    }
    colorString() {
        return this.color.rgba();
    }
    getMactionNodes(node) {
        return Array.from(node.getElementsByTagName(this.mactionName));
    }
    isMactionNode(node) {
        return node.tagName === this.mactionName;
    }
}