☰

轻小说阅读器

修改自pppploi8的通用阅读器。此修改版仅为“真白萌”和“哔哩轻小说”提供阅读模式

目前为 2024-07-19 提交的版本。查看 最新版本。

// ==UserScript==
// @name         轻小说阅读器
// @version      0.1.0
// @description  修改自pppploi8的通用阅读器。此修改版仅为“真白萌”和“哔哩轻小说”提供阅读模式
// @author       Y_C_Z
// @match        https://masiro.me/*
// @match        https://www.linovelib.com/*
// @match        https://www.bilinovel.com/*
// @grant        none
// @namespace https://gf.qytechs.cn/users/1335970
// ==/UserScript==

(function() {
    var $ = function(selector){
        return document.querySelector(selector);
    }

    var blackList = {"masiro.me": true,"www.linovelib.com": true,"www.bilinovel.com": true};

    // 通用解析模板
    function parseContentAndTitle(){
        var mainDom = null;

        function findMainDom(doms){
            for(var i=0;i<doms.length;i++){
                var dom = doms[i];
                if (dom.classList.contains("nvl-content") || dom.classList.contains("read-content") || dom.classList.contains("bcontent")){
                    mainDom = dom;
                }
                findMainDom(dom.children||[]);
            }
        }
        findMainDom(document.body.children);
        var newTitle = '';
        var title = document.title;
        var textToRemove = "真白萌 | ";
        var anotherTextToRemove = " _哔哩轻小说";

        title = title.replace(textToRemove, "").replace(anotherTextToRemove, "");
        if (location.host == "www.bilinovel.com") {
            var atitle = document.querySelector('.atitle');
            if (atitle) {
                newTitle = atitle.textContent;
            } else {
                newTitle = title;
            }
        } else {
            // 选择“哔哩轻小说PC”中id为"mlfy_main_text"的元素
            var mlfyMainTextElement = document.querySelector("#mlfy_main_text");
            if (mlfyMainTextElement) {
                // 获取第一个<h1>元素
                var firstH1Element = mlfyMainTextElement.querySelector("h1");
                if (firstH1Element) {
                    newTitle = firstH1Element.textContent;
                } else {
                    newTitle = title;
                }
            } else {
                newTitle = title;
            }
        }


        if (mainDom){
            return {content: mainDom.innerText, title: newTitle};
        }
    }

    function parsePageUp(){
        var reg, text;
        var href = "";
        var i = 0;
        var as = document.querySelectorAll('a');
        if (location.host == "www.bilinovel.com") {
            return ReadParams.url_previous;
        } else {
            reg = /上一章|上一篇|上一页|上一话|navigation-prev/;
            for(i=0;i<as.length;i++){
                text = as[i].outerHTML;
                href = (as[i].attributes.href && as[i].attributes.href.value) || (as[i].dataset && as[i].dataset.url);
                if (text && reg.test(text.trim()) && href && href != "#" && href.indexOf("javascript:") !== 0){
                    return href;
                }
            }
        }
    }

    function parsePageDown(){
        var reg, text;
        var href = "";
        var i = 0;
        var as = document.querySelectorAll('a');
        if (location.host == "www.bilinovel.com") {
            return ReadParams.url_next;
        } else {
            reg = /下一章|下一篇|下一页|下一话|navigation-next/;
            for(i=0;i<as.length;i++){
                text = as[i].outerHTML;
                href = (as[i].attributes.href && as[i].attributes.href.value) || (as[i].dataset && as[i].dataset.url);
                if (text && reg.test(text.trim()) && href && href != "#" && href.indexOf("javascript:") !== 0){
                    return href;
                }
            }
        }
    }

    function parsePageIndex(){
        var as = document.querySelectorAll('a');
        var reg = /目录/;
        if (location.host == "www.bilinovel.com") {
            return ReadParams.url_index;
        } else {
            for(var i=0;i<as.length;i++){
                var text = as[i].innerText;
                var href = as[i].attributes.href && as[i].attributes.href.value;
                if (text && text.length <= 10 && reg.test(text.trim()) && href && href != "#" && href.indexOf("javascript:") !== 0){
                    return href;
                }
            }
        }
    }


    var fontsize = parseInt(localStorage["_er_fontsize"] || 0);
    var padding = parseInt(localStorage["_er_padding"] || 10);
    var autoplay = false;
    if (localStorage['_er-autoplay'] === 'true'){
        autoplay = true;
    }
    delete localStorage['_er-autoplay'];

    if (top.window !== window) return; // iframe内的网页不展示按钮，也不支持进入阅读模式
    if (localStorage['_er-enable'] === 'true'){
        localStorage['_er-enable'] = 'false';
        checkAndCreateReader(true);
    } else if (blackList[location.host] == true){
        // 创建阅读模式悬浮按钮
        $('body').children[0].insertAdjacentHTML('beforeBegin', '<button id="_er-entryReadMode" style="' +
            '    position: fixed;' +
            '    right: 50px;' +
            '    bottom: 50px;' +
            '    background-color: rgba(255,255,255,0.5);' +
            '    backdrop-filter: blur(1px);' +
            '    border: 0px solid black;' +
            '    border-radius: 10px;' +
            '    box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.2);' +
            '    padding: 0 5px;' +
            '    height: 50px;' +
            '    overflow: auto;' +
            '    z-index: 201901272210;">进入阅读模式</button>');
        $('#_er-entryReadMode').onclick = checkAndCreateReader;
        $('#_er-NotShowReadMode').onclick = function(){
            localStorage['_er-disabled'] = 'true';
            $('#_er-entryReadMode').remove();
            $('#_er-NotShowReadMode').remove();
        }
    }

    function checkAndCreateReader(notAlert){
        // 通过调用通用模板尝试是否能够成功匹配到阅读内容
        var content = parseContentAndTitle();
        if (content && content.content){
            content.pageup = parsePageUp();
            content.pagedown = parsePageDown();
            content.pageindex = parsePageIndex();
            createReader(content);
        }else{
            if (notAlert !== true){
                alert('当前页面解析失败，无法进入阅读模式！');
            }
        }
    }

    function setTheme(theme) {
        switch(theme) {
            case 'black':
                $('._er').style.backgroundColor = 'black';
                $('._er-title').style.color = 'lightgrey';
                $('._er-content').style.color = 'lightgrey';
                document.querySelectorAll('.buttonBottom').forEach(function(element) {
                    element.style.color = 'lightgrey';
                    element.style.border = '0.5px solid lightgrey';
                });
                document.querySelectorAll('.buttonTop').forEach(function(element) {
                    element.style.color = 'lightgrey';
                });
                break;
            case 'OliveDrab':
                $('._er').style.backgroundColor = '#D3E1D0';
                $('._er-title').style.color = 'black';
                $('._er-content').style.color = 'black';
                break;
            case 'Khaki':
                $('._er').style.backgroundColor = '#F6F2E7';
                $('._er-title').style.color = 'black';
                $('._er-content').style.color = 'black';
                break;
            case 'blue':
                $('._er').style.backgroundColor = '#D3E5F9';
                $('._er-title').style.color = 'black';
                $('._er-content').style.color = 'black';
                break;
            case 'white':
                $('._er').style.backgroundColor = 'white';
                $('._er-title').style.color = 'black';
                $('._er-content').style.color = 'black';
                document.querySelectorAll('.buttonBottom').forEach(function(element) {
                    element.style.border = '0.5px solid black';
                    element.style.color = 'black';
                });
                document.querySelectorAll('.buttonTop').forEach(function(element) {
                    element.style.border = '1px solid black';
                });
                break;
        }
        localStorage['_er-theme'] = theme;
        $('._er').dataset['theme'] = theme;
    }

    // 创建阅读器
    function createReader(content){
        document.documentElement.style.overflow = 'hidden';
        $('#_er-entryReadMode') && $('#_er-entryReadMode').remove();
        $('#_er-NotShowReadMode') && $('#_er-NotShowReadMode').remove();
        addClassAndDom();
        if (localStorage['_er-theme']) {
            setTheme(localStorage['_er-theme']);
        }
        $('._er-title').innerText = content.title;
        var contentArr = content.content.split('\n');
        var contentHtml = '';
        for(var i=0;i<contentArr.length;i++){
            var line = contentArr[i];
            if (line){
                contentHtml += '<span>' + line + '</span>';
            }
            contentHtml += '<br>';
        }
        $('._er-content').innerHTML = contentHtml;
        var spanNodes = document.querySelectorAll('._er-content span');
        // 挂接键盘事件，实现键盘上下左右切换阅读功能
        $('body').onkeydown = function(e){
            e.stopPropagation();
            switch(e.keyCode || e.which || e.charCode){
                case 38: // up
                    if (e.ctrlKey) {
                        $('._er').scrollTop = $('._er').scrollTop - (document.documentElement.clientHeight - 24)
                    } else {
                        toPrevReadPos();
                        updateReadPos();
                    }
                    break;
                case 40: // down
                    if (e.ctrlKey) {
                        $('._er').scrollTop = $('._er').scrollTop + (document.documentElement.clientHeight - 24);
                    } else {
                        toNextReadPos();
                        updateReadPos();
                    }
                    break;
                case 37: // left
                    if (e.ctrlKey) {
                        toPrevPage();
                    } else {
                        $('._er').scrollTop = $('._er').scrollTop - (document.documentElement.clientHeight - 24)
                    }
                    break;
                case 39: // right
                    if (e.ctrlKey) {
                        toNextPage()
                    } else {
                        $('._er').scrollTop = $('._er').scrollTop + (document.documentElement.clientHeight - 24);
                    }
                    break;
                default:
                    return true;
            }
            return false;

            function toPrevPage(){
                if (content.pageup){
                    localStorage['_er-enable'] = 'true';
                    location.href = content.pageup;
                }else{
                    alert('很抱歉，没有匹配到上一页！');
                }
            }
            function toNextPage(){
                if (content.pagedown){
                    localStorage['_er-enable'] = 'true';
                    location.href = content.pagedown;
                }else{
                    alert('很抱歉，没有匹配到下一页！');
                }
            }
        };
        $('._er-content').onclick = function(e){ // 适用于墨水屏的左右点击无动画翻页
            var x = e.pageX;
            var width = document.documentElement.clientWidth;
            if (x <= width*0.1){ // 前翻一页
                $('._er').scrollTop = $('._er').scrollTop - (document.documentElement.clientHeight - 24)
            }else if(x >= width*0.9){ // 后翻一页
                $('._er').scrollTop = $('._er').scrollTop + (document.documentElement.clientHeight - 24);
            }
        }
        $('#_er-pageindex').onclick = function(){
            if (content.pageindex){
                location.href = content.pageindex;
            }else{
                alert('很抱歉，没有匹配到目录！');
            }
        };
        $('#_er-switch-theme').onclick = function(){
            var current = $('._er').dataset['theme'] || 'white';
            var themeList = ['white', 'Khaki', 'blue', 'OliveDrab', 'black'];
            var index = themeList.indexOf(current);
            if (index === -1) index = 0;
            index++;
            if (index >= themeList.length) {
                index = 0;
            }
            setTheme(themeList[index]);
        }
        $('#_er-pageup').onclick = function(){
            if (content.pageup){
                localStorage['_er-enable'] = 'true';
                location.href = content.pageup;
            }else{
                alert('很抱歉，没有匹配到上一页！');
            }
        };
        $('#_er-pagedown').onclick = function(){
            if (content.pagedown){
                localStorage['_er-enable'] = 'true';
                location.href = content.pagedown;
            }else{
                alert('很抱歉，没有匹配到下一页！');
            }
        };
        $('#_er-pagedown').dataset['nexturl'] = content.pagedown;
        setFontSize();
        setPadding();

        // 按钮事件处理
        $('#_er-close').onclick = removeDom;
        $('#_er-font-plus').onclick = function(){
            fontsize += 2;
            setFontSize();
        };
        $('#_er-font-minus').onclick = function(){
            fontsize -= 2;
            setFontSize();
        };
        $('#_er-border').onclick= function() {
            padding = padding == 10 ? 5 : 10;
            setPadding();
        }
    }

    function toNextReadPos(){
        var current = $('._er-current');
        var nextSpan = null;
         if (current){
            nextSpan = current.nextElementSibling;
            while(nextSpan && nextSpan.nodeName !== 'SPAN'){
                nextSpan = nextSpan.nextElementSibling;
            }
        }else{
            nextSpan = $('._er-content span');
        }
        if (current) current.classList.remove('_er-current');
        if (nextSpan) nextSpan.classList.add('_er-current');
    }

    function toPrevReadPos(){
        var current = $('._er-current');
        var prevSpan = null;
        if (current){
            prevSpan = current.previousElementSibling;
            while(prevSpan && prevSpan.nodeName !== 'SPAN'){
                prevSpan = prevSpan.previousElementSibling;
            }
        }
        if (current) current.classList.remove('_er-current');
        if (prevSpan) prevSpan.classList.add('_er-current');
    }

    function updateReadPos(){
        if ($('._er-current'))
            $('._er').scrollTop =  $('._er-current').offsetTop - (document.documentElement.clientHeight / 2);
    }

    function setFontSize(){
        localStorage["_er_fontsize"] = fontsize;
        $('._er-title').style.fontSize = (20+fontsize) + 'px';
        $('._er-title').style.lineHeight = ((20+fontsize)*1.5) + 'px';
        $('._er-content').style.fontSize = (14+fontsize) + 'px';
        $('._er-content').style.lineHeight = ((14+fontsize)*1.5) + 'px';
    }

    function setPadding() {
        localStorage["_er_padding"] = padding;
        $('._er-content').style.padding = '10px ' + padding + '%';
    }

    var oldOverflow = '';
    var oldOnKeyDown = $('body').onkeydown;

    function removeDom(){
        var erScrollTop = document.querySelector('._er').scrollTop;
        var erScrollHeight = document.querySelector('._er').scrollHeight;
        var erClientHeight = document.documentElement.clientHeight;
        var scrollPercentage = (erScrollTop / (erScrollHeight - erClientHeight)) * 100;
        $('._er').remove();
        document.documentElement.style.overflow = 'auto';
        $('body').style.overflow = oldOverflow;
        $('body').onkeydown = oldOnKeyDown;
        $('body').children[0].insertAdjacentHTML('beforeBegin', '<button id="_er-entryReadMode" style="' +
            '    position: fixed;' +
            '    right: 50px;' +
            '    bottom: 50px;' +
            '    background-color: rgba(255,255,255,0.5);' +
            '    backdrop-filter: blur(1px);' +
            '    border: 1px solid black;' +
            '    border-radius: 10px;' +
            '    padding: 0 5px;' +
            '    height: 50px;' +
            '    overflow: auto;' +
            '    z-index: 201901272210;">进入阅读模式</button>');
        $('#_er-entryReadMode').onclick = checkAndCreateReader;
        setTimeout(function() {
            var restoredScrollTop = ((erScrollHeight - erClientHeight) * (scrollPercentage / 100));
            window.scrollTo(0, restoredScrollTop);
        }, 0);
    }

    function addClassAndDom(){
        var originalScrollTop = window.pageYOffset;
        var originalScrollHeight = document.documentElement.scrollHeight;
        var originalClientHeight = document.documentElement.clientHeight;
        var scrollPercentage = (originalScrollTop / (originalScrollHeight - originalClientHeight)) * 100;
        console.log(originalScrollTop);
        oldOverflow = $('body').style.overflow;
        $('body').style.overflow = 'hidden';

        $('body').children[0].insertAdjacentHTML('beforeBegin',
            '<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,minimum-scale=1,user-scalable=no"><div class="_er">' +
            '    <div class="_er-tools">' +
            '        <button type="button" id="_er-pageindex" class="buttonTop">目录</button>' +
            '        <button type="button" id="_er-switch-theme" class="buttonTop">切换主题</button>' +
            '        <button type="button" id="_er-font-plus" class="buttonTop">字号+</button>' +
            '        <button type="button" id="_er-font-minus" class="buttonTop">字号-</button>' +
            '        <button type="button" id="_er-border" class="buttonTop">边距</button>' +
            '        <button type="button" id="_er-close" class="exit">退出</button>' +
            '    </div>' +
            '    <div class="_er-title"></div>' +
            '    <div class="_er-content">' +
            '    </div>' +
            '    <div class="_er-tools">' +
            '        <button type="button" id="_er-pageup"  class="buttonBottom">上一页</button>' +
            '        <button type="button" id="_er-pagedown"  class="buttonBottom">下一页</button>' +
            '    </div>' +
            '</div>');
        $('body').children[0].insertAdjacentHTML('beforeBegin',
            '<style>' +
            '._er{' +
            '    position: fixed;' +
            '    left: 0;' +
            '    right: 0;' +
            '    top: 0;' +
            '    bottom: 0;' +
            '    overflow: auto;' +
            '    background-color: white;' +
            '    z-index: 201901272211;' +
            '}' +
            '._er-title{' +
            '    text-align: center;' +
            '    font-size: 20px;' +
            '    line-height: 30px;' +
            '    font-weight: 900;' +
            '    padding: 10px 10%;' +
            '    color: black;' +
            '}' +
            '._er-content{' +
            '    padding: 10px 10%;' +
            '    font-size: 14px;' +
            '    line-height: 21px;' +
            '    color: black;' +
            '}' +
            '._er-content span:last-of-type {' +
            '    font-family: "read" !important;' +
            '}' +
            '._er-tools{' +
            '    margin-top: 10px;' +
            '    margin-bottom: 10px;' +
            '    text-align: center;' +
            '    display: flex;' +
            '    justify-content: center;' +
            '}' +
            '.buttonTop{' +
            '    cursor: pointer;' +
            '    color: black;' +
            '    background-color: rgba(255,255,255,0.5);' +
            '    border: 1px solid black;' +
            '    padding: 5px 8px;' +
            '    margin: 8px 5px 0;' +
            '    border-radius: 10px;' +
            '}' +
            '.buttonTop:hover{' +
            '    background-color: rgba(255,255,255,0.9);' +
            '}' +
            '.buttonTop:active{' +
            '    background-color: rgba(255,255,255,0.7);' +
            '}' +
            '.buttonBottom{' +
            '    cursor: pointer;' +
            '    color: black;' +
            '    background-color: rgba(255,255,255,0);' +
            '    border: 0.5px solid black;' +
            '    padding: 5px 50px;' +
            '    margin: 20px 0 80px;' +
            '    font-size: 20px;' +
            '    width: 50%' +
            '}' +
            '.buttonBottom:hover{' +
            '    background-color: rgba(255,255,255,0.8);' +
            '}' +
            '.buttonBottom:active{' +
            '    background-color: rgba(255,255,255,0.5);' +
            '}' +
            '.exit{' +
            '    width: 50px;' +
            '    height: 50px;' +
            '    position: fixed;' +
            '    right: 15px;' +
            '    bottom: 15px;' +
            '    z-index: 201901272212;' +
            '    color: black;' +
            '    border: 1px solid black;' +
            '    opacity: 0.5;' +
            '    cursor: pointer;' +
            '    border-radius: 25px;' +
            '}' +
            '._er-current{' +
            '    background-color: yellow;' +
            '    color: black;' +
            '}' +
            '</style>');
        setTimeout(function() {
            var restoredScrollTop = ((originalScrollHeight - originalClientHeight) * (scrollPercentage / 100));
            document.querySelector('._er').scrollTop = restoredScrollTop;
            console.log(document.querySelector('._er').scrollTop);
    }, 0);
    }

})();

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