Function anylizeEle

Picviewer CE+/Picviewer CE+.user.js:18637–18802

(total, node)

                let body = getBody(document);
                let linkMedias = [];
                function anylizeEle(total, node) {
                    if (/^iframe$/i.test(node.nodeName)) {
                        if (node.name == "pagetual-iframe") return total;
                        if (!node.src || (node.src && (node.src == "about:blank" || node.src.replace(/\/[^\/]*$/,"").indexOf(location.hostname) != -1))) {
                            try {
                                arrayFn.forEach.call(node.contentWindow.document.querySelectorAll('*'), function(n){
                                    total = anylizeEle(total, n);
                                });
                            } catch(e) {
                                debug(e.toString());
                            }
                        }
                        return total;
                    } else if (/^img$/i.test(node.nodeName)) {
                        total.push(node);
                    } else if (/^svg$/i.test(node.nodeName)) {
                        if (node.clientHeight != 0 && (!node.classList || !node.classList.contains("pagetual"))) {
                            try {
                                let images = node.querySelectorAll('image');
                                if (images.length) {
                                    arrayFn.forEach.call(images, function(image){
                                        let src = image.href && image.href.baseVal;
                                        if (src) {
                                            image.src = canonicalUri(src, image.ownerDocument.URL, image.ownerDocument.baseURI);
                                            total.push(image);
                                        }
                                    });
                                } else {
                                    const xml = new XMLSerializer().serializeToString(node);
                                    const ImgBase64 = `data:image/svg+xml;base64,${window.btoa(unescape(encodeURIComponent(xml)))}`;
                                    node.src = ImgBase64;
                                    total.push(node);
                                }
                            } catch(e) {
                                debug(e);
                            }
                        }
                    } else if (/^canvas$/i.test(node.nodeName)) {
                        if (node.clientHeight != 0) {
                            try {
                                if (!node.src) {
                                    node.src = node.toDataURL("image/png");
                                }
                            } catch(e) {}
                        }
                        if (!node.src && node.dataset.src) {
                            node.src = node.dataset.src;
                        }
                        if (node.src) {
                            total.push(node);
                        }
                    } else if (/^a$/i.test(node.nodeName)) {
                        if (node.href && node.href.length < 300 && imageReg.test(node.href)) {
                            let src = node.href;
                            if (/[&\?]url\=/.test(src)) {
                                src = src.replace(/.*[&\?]url\=(.*?)(&.*|$)/, "$1");
                                try {
                                    src = decodeURIComponent(src);