Function insIframe

Autopage.user.js:1809–1885

(src)

    }
    // 翻页类型 5（插入 iframe 方式加载下一页，无限套娃）
    function insIframe(src) {
        // 停用当前页面翻页
        if (curSite.SiteTypeID == 0) return
        curSite.SiteTypeID = 0;

        // 创建 iframe
        let iframe = document.createElement('iframe');
        iframe.id = 'Autopage_iframe';
        iframe.src = src.replace(/#.+$/,'');

        document.documentElement.appendChild(document.createElement('style')).textContent = 'iframe#Autopage_iframe {position: absolute !important; width: 100% !important; height: 100% !important; border: none !important;}';

        var beforeScrollTop = document.documentElement.scrollTop || document.body.scrollTop
        // 当滚动条到底部时（即完全显示 iframe 框架），隐藏当前页面的滚动条
        window.addEventListener('scroll', function () {
            let scrollTop = document.documentElement.scrollTop || document.body.scrollTop,
                clientHeight = document.documentElement.clientHeight || document.body.clientHeight,
                scrollHeight = document.documentElement.scrollHeight || document.body.scrollHeight,
                afterScrollTop = document.documentElement.scrollTop || document.body.scrollTop,
                delta = afterScrollTop - beforeScrollTop;
            if (delta == 0) return false;
            beforeScrollTop = afterScrollTop;

            //console.log(delta, (scrollTop + clientHeight + 10), scrollHeight, '1111')
            if (delta > 0 && scrollTop + clientHeight + 10 >= scrollHeight && !getCSS('#Autopage_iframe-scroll')) {
                let newStyle = document.createElement('style'); newStyle.id = 'Autopage_iframe-scroll';
                newStyle.textContent = 'html::-webkit-scrollbar, body::-webkit-scrollbar {width: 0 !important;height: 0 !important;} html, body {scrollbar-width: none !important;}';
                if (curSite.pager.style) newStyle.textContent += curSite.pager.style;
                document.documentElement.appendChild(newStyle);

                // 恢复 iframe 的滚动条
                if (iframe.contentWindow.document.querySelectorAll('#Autopage_iframe-scroll-hidden')) iframe.contentWindow.document.querySelectorAll('#Autopage_iframe-scroll-hidden').forEach((o)=>{o.remove();});

                // 给予 iframe 焦点
                iframe.focus();
                if (iframe.contentWindow.document.body) {iframe.contentWindow.document.body.focus(); iframe.contentWindow.document.body.click();}
            } else if (delta < 0 && scrollTop + clientHeight + 10 <= scrollHeight && getCSS('#Autopage_iframe-scroll')) {
                getCSS('#Autopage_iframe-scroll').remove();
                // 再次禁用 iframe 的滚动条
                if (!iframe.contentWindow.document.getElementById('Autopage_iframe-scroll-hidden')) {
                    let newStyle = document.createElement('style'); newStyle.id = 'Autopage_iframe-scroll-hidden';
                    newStyle.textContent = 'html, body {overflow: hidden !important;}';
                    iframe.contentWindow.document.documentElement.appendChild(newStyle);
                }
            }
        }, false);

        // 加载完成后才继续
        iframe.onload = function() {
            // 暂时禁用 iframe 的滚动条
            if (!getCSS('#Autopage_iframe-scroll') && !iframe.contentWindow.document.getElementById('Autopage_iframe-scroll-hidden')) {

                let newStyle = document.createElement('style'); newStyle.id = 'Autopage_iframe-scroll-hidden';
                newStyle.textContent = 'html, body {overflow: hidden !important;}';
                iframe.contentWindow.document.documentElement.appendChild(newStyle);
            }

            // 添加历史记录