nehan/dist/child-node-filter.js

Html layout engine for paged-media written in Typescript

import { Config, Display, WhiteSpace, PseudoElement, } from './public-api';
export class ValidBlockSelector {
    constructor() { }
    visit(element) {
        if (element.isTextElement()) {
            return true;
        }
        if (Config.ignoredTags.includes(element.tagName)) {
            return false;
        }
        if (["br", "hr", "img", "wbr", "video", "iframe"].includes(element.tagName)) {
            return true;
        }
        if (PseudoElement.isPseudoElement(element)) {
            return true;
        }
        const display = Display.load(element);
        if (display.isNone()) {
            return false;
        }
        if (!display.isBlockLevel()) {
            return true;
        }
        element.acceptChildFilter(this);
        if (element.childNodes.length === 0) {
            return false;
        }
        if (element.childNodes.every(child => WhiteSpace.isWhiteSpaceElement(child))) {
            return false;
        }
        return true;
    }
}
ValidBlockSelector.instance = new ValidBlockSelector();
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