Function checkNextPage

DownloadAllContent/DownloadAllContent.user.js:1509–1529

(doc, baseUrl)

    }

    async function checkNextPage(doc, baseUrl) {
        let nextPage = null;
        if (nextPageFunc) {
            nextPage = await nextPageFunc(doc, baseUrl);
            if (nextPage && nextPage.length === 0) nextPage = null;
        } else {
            let aTags = doc.querySelectorAll("a");
            for (var i = 0; i < aTags.length; i++) {
                let aTag = aTags[i];
                if (innerNextPage.test(aTag.innerText) && aTag.href && !/javascript:|#/.test(aTag.href)) {
                    let nextPageHref = canonicalUri(aTag.getAttribute("href"), baseUrl || location.href);
                    if (nextPageHref != location.href) {
                        nextPage = aTag;
                        nextPage.href = nextPageHref;
                        break;
                    }
                }
            }
        }
        return nextPage;
    }

    function textNodesUnder(el){
        var n, a=[], walk=document.createTreeWalker(el,NodeFilter.SHOW_TEXT,null,false);