speech-rule-engine/cjs/highlighter/abstract_highlighter.js

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

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    return function (mod) {
        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.AbstractHighlighter = void 0;
const XpathUtil = __importStar(require("../common/xpath_util.js"));
const enrich_attr_js_1 = require("../enrich_mathml/enrich_attr.js");
let counter = 0;
class AbstractHighlighter {
    constructor() {
        this.counter = counter++;
        this.ATTR = 'sre-highlight-' + this.counter.toString();
        this.color = null;
        this.mactionName = '';
        this.currentHighlights = [];
    }
    highlight(nodes) {
        this.currentHighlights.push(nodes.map((node) => {
            const info = this.highlightNode(node);
            this.setHighlighted(node);
            return info;
        }));
    }
    highlightAll(node) {
        const mactions = this.getMactionNodes(node);
        for (let i = 0, maction; (maction = mactions[i]); i++) {
            this.highlight([maction]);
        }
    }
    unhighlight() {
        const nodes = this.currentHighlights.pop();
        if (!nodes) {
            return;
        }
        nodes.forEach((highlight) => {
            if (this.isHighlighted(highlight.node)) {
                this.unhighlightNode(highlight);
                this.unsetHighlighted(highlight.node);
            }
        });
    }
    unhighlightAll() {
        while (this.currentHighlights.length > 0) {
            this.unhighlight();
        }
    }
    setColor(color) {
        this.color = color;
    }
    colorString() {
        return this.color.rgba();
    }
    addEvents(node, events) {
        const mactions = this.getMactionNodes(node);
        for (let i = 0, maction; (maction = mactions[i]); i++) {
            for (const [key, event] of Object.entries(events)) {
                maction.addEventListener(key, event);
            }
        }
    }
    getMactionNodes(node) {
        return Array.from(node.getElementsByClassName(this.mactionName));
    }
    isMactionNode(node) {
        const className = node.className || node.getAttribute('class');
        return className ? !!className.match(new RegExp(this.mactionName)) : false;
    }
    isHighlighted(node) {
        return node.hasAttribute(this.ATTR);
    }
    setHighlighted(node) {
        node.setAttribute(this.ATTR, 'true');
    }
    unsetHighlighted(node) {
        node.removeAttribute(this.ATTR);
    }
    colorizeAll(node) {
        XpathUtil.updateEvaluator(node);
        const allNodes = XpathUtil.evalXPath(`.//*[@${enrich_attr_js_1.Attribute.ID}]`, node);
        allNodes.forEach((x) => this.colorize(x));
    }
    uncolorizeAll(node) {
        const allNodes = XpathUtil.evalXPath(`.//*[@${enrich_attr_js_1.Attribute.ID}]`, node);
        allNodes.forEach((x) => this.uncolorize(x));
    }
    colorize(node) {
        const fore = (0, enrich_attr_js_1.addPrefix)('foreground');
        if (node.hasAttribute(fore)) {
            node.setAttribute(fore + '-old', node.style.color);
            node.style.color = node.getAttribute(fore);
        }
    }
    uncolorize(node) {
        const fore = (0, enrich_attr_js_1.addPrefix)('foreground') + '-old';
        if (node.hasAttribute(fore)) {
            node.style.color = node.getAttribute(fore);
        }
    }
}
exports.AbstractHighlighter = AbstractHighlighter;
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