guangzan

前置

由于之前构建的皮肤 reacg 偏二次元风,尽管提供了大量配置(包括几乎任何颜色、插件等的配置),依然有人吐槽花里胡哨,遂重新构建了一款简约风格的博客园皮肤, 正如你所见。下文我将从零介绍它的构建过程,构建它最快花费一个小时到几个小时。由于之前做了大量工作,所以现在按照流程走一遍就完事了。

准备工作

配置

config/options.js,这是 webpack 的配置:

module.exports = {
    themeName: 'simple',
    template: 'index',
    eslint: true,
    sourceMap: false,
    openAnalyzer: true,
    cssExtract: false,
    openBrowser: false,
    // ...
}

看个人所需,我在这里简单配置如下:

  • themeName: 'simple' 对应 themes/simple 文件夹
  • template: 运行 npm start 打开博客园首页模板
  • 开启 eslint
  • 开启 Analyzer,运行 npm run build 时我需要检查最终构建的体积大小
  • cssExtract 先不分离 css,构建完成直接推送到远端,直接切换线上版本

开始

  1. simple/style 下存放样式文件
  • index.scss
  • index.m.scss
  • markdown.scss
  • reset.scss
  • tools.scss

最终只在入口文件 index.js 中导入 index.scss,其他 scss 由 index.scss 引入,由于之前编好了样式代码,所以需要新编写的样式极少。

  1. simple/plugins/index.js

引入构建好的博客园插件,不需要写任何功能代码,及其样式。

import footer from '@plugins/footer'
import highlight from '@plugins/highlight'
import copy from '@plugins/copy'
import linenumbers from '@plugins/linenumbers'
import imagebox from '@plugins/imagebox'
import commentsAvatars from '@plugins/commentsAvatars'
import dragMenu from '@plugins/dragMenu'
import donation from '@plugins/donation'
import emoji from '@plugins/emoji'
import player from '@plugins/player'
import postMessage from '@plugins/postMessage'
import postSignature from '@plugins/postSignature'
import postTopimage from '@plugins/postTopimage'
import notice from '@plugins/notice'

const plugins = () => {
    footer()
    highlight()
    copy()
    linenumbers()
    imagebox()
    commentsAvatars()
    donation()
    dragMenu()
    emoji()
    player()
    postMessage()
    postSignature()
    postTopimage()
    notice()
}

module.exports = plugins
  • 构建 footer 链接
  • mac 样式代码高亮
  • 代码行号
  • 图片灯箱
  • 显示评论区头像
  • 捐增二维码
  • 按钮工具条(返回顶部,推荐,收藏。。。)
  • 评论框表情
  • 播放器
  • 在文章头部构建文章信息
  • 构建文章签名信息
  • 文章头图
  • 通知功能

由于这个皮肤的基调是简约,所以只引入一些常用的功能模块。花里胡哨的就不考虑了。

  1. simple/build/index.js

index.js 引入了一些其他 JavaScript 用来做一些调整,例如 simple/build 文件夹下我还写了

  • catalog(文章目录)
  • header(头部导航逻辑)
  • scroll(滚动控制)
  • side (侧边栏逻辑)

catalog/index.js

代码有些长,我将它折叠
import './index.scss'
import {
    pageName,
    userAgent,
    hasPostTitle,
    getClientRect,
    throttle,
} from '@tools'

const { enable } = window.opts.catalog

// 构建目录
function build() {
    let $catalogContainer = $(
        `<div id="catalog">
            <div class='catalog-title'><h3>目录</h3></div>
        </div>`,
    )
    const $ulContainer = $('<ul></ul>')
    const titleRegExp = /^h[1-3]$/

    $('#likecs_post_body')
        .children()
        .each(function() {
            if (titleRegExp.test(this.tagName.toLowerCase())) {
                if ($(this).text().length === 0) return // 如果标题为空 只有 #
                let id
                let text

                if (this.id !== '') {
                    id = this.id
                    text =
                        this.childNodes.length === 2
                            ? this.childNodes[1].nodeValue
                            : this.childNodes[0].nodeValue
                } else {
                    if (this.childNodes.length === 2) {
                        const value = this.childNodes[1].nodeValue
                        text = value ? value : $(this.childNodes[1]).text()
                    } else {
                        const value = this.childNodes[0].nodeValue
                        text = value ? value : $(this.childNodes[0]).text() // 处理标题被 span 包裹的情况
                    }
                    id = text.trim()
                    $(this).attr('id', id)
                }

                const title = `
                            <li class='${this.nodeName.toLowerCase()}-list'>
                                <a href='#${id}'>${text}</a>
                            </li>
                        `

                $ulContainer.append(title)
            }
        })

    const $catalog = $($catalogContainer.append($ulContainer))
    $('#sidebar_news').after($catalog)
}

function noCatalog() {
    if (pageName() !== 'post') return
    // to do something
}

// 设置目录活跃标题样式
function setActiveCatalogTitle() {
    $(window).scroll(
        throttle(
            function() {
                for (let i = $('#catalog ul li').length - 1; i >= 0; i--) {
                    const titleId = $($('#catalog ul li')[i])
                        .find('a')
                        .attr('href')
                        .replace(/[#]/g, '')
                    const postTitle = document.querySelector(
                        `#likecs_post_body [id='${titleId}']`,
                    )
                    if (getClientRect(postTitle).top <= 10) {
                        if (
                            $($('#catalog ul li')[i]).hasClass('catalog-active')
                        )
                            return
                        $($('#catalog ul li')[i]).addClass('catalog-active')
                        $($('#catalog ul li')[i])
                            .siblings()
                            .removeClass('catalog-active')
                        return
                    }
                }
            },
            50,
            1000 / 60,
        ),
    )
}

function setCatalogToggle() {
    $(window).scroll(
        throttle(
            function() {
                if ($('#catalog ul').css('display') === 'none') return
                const bottom = getClientRect(
                    document.querySelector('#sideBarMain'),
                ).bottom
                if (bottom <= 0) {
                    $('#catalog').addClass('catalog-sticky')
                } else {
                    $('#catalog').removeClass('catalog-sticky')
                }
            },
            50,
            1000 / 60,
        ),
    )
}

function toggle() {
    $('.catalog-title').click(function() {
        $('#catalog ul').toggle('fast', 'linear', function() {
            $(this).css('display') === 'none'
                ? $('.catalog-title').removeClass('is-active')
                : $('.catalog-title').addClass('is-active')
        })
    })
}

function catalog() {
    if (
        enable &&
        hasPostTitle() &&
        pageName() === 'post' &&
        userAgent() === 'pc'
    ) {
        build()
        setActiveCatalogTitle()
        setCatalogToggle()
        toggle()
    } else {
        noCatalog()
    }
}

module.exports = catalog

header/index.js

import './index.scss'
import { pageName, userAgent } from '@tools'

// header右侧按钮容器
const buildHeader = () => {
    const gitee = window.opts.gitee
    $('#navList').after(`<div class="navbar-end"></div>`)
    $('#blog_nav_newpost').appendTo('.navbar-end')
    $(
        `<a href="https://guangzan.gitee.io/awescnb-docs/" id="header-awescnb">构建新皮肤</a>`,
    ).appendTo('.navbar-end')
    $(`<a href="${gitee.url}" id="header-gitee">开源主页</a>`).appendTo(
        '.navbar-end',
    )
}

// 构建header昵称
const headerNickname = () => {
    $('#Header1_HeaderTitle').text($('#profile_block a:first').text())
}

// header头像
const buildAva = () => {
    const { avatar } = window.opts.theme
    $('#blogLogo').attr('src', `${avatar}`)
}

// 随笔页构建文章题目
const headerInnerPostTitle = () => {
    if (pageName() !== 'post') return
    if (userAgent() !== 'pc') return
    let title = $('.post .postTitle')
        .text()
        .replace(/\s*/g, '')
    const titleLength = title.length

    let offset = ''
    if (0 <= titleLength && titleLength < 10) offset = '-180%'
    if (10 <= titleLength && titleLength < 15) offset = '-140%'
    if (15 <= titleLength && titleLength < 20) offset = '-100%'
    if (20 <= titleLength && titleLength < 25) offset = '-65%'
    if (25 <= titleLength && titleLength < 28) offset = '-60%'
    if (titleLength >= 28) {
        title = title.substring(0, 28) + '...'
        offset = '-60%'
    }
    $('#navList').append(`<span class='header-posttitle'>${title}</span>`)
    $('head').append(
        `<style>
               .header-posttitle {transform: translate3d(${offset}, 300%, 0);}
                #header.is-active .header-posttitle {transform: translate3d(${offset}, 0, 0);}
        </style>`,
    )
}

// header移动端菜单
const headerBtn = () => {
    const ele = `<div id="navbarBurger" class="navbar-burger burger" data-target="navMenuMore">
      <span></span>
      <span></span>
      <span></span>
    </div>`
    $('#blogTitle').append(ele)
    $('#navbarBurger').click(function() {
        $(this).toggleClass('is-active')
        $('#navigator').toggleClass('is-active')
    })
}

// 创建自定义图标容器及其图标
const customLinks = () => {
    const github = window.opts.github
    // wrap
    $('.navbar-end').prepend(`<div class="custom-links"></div>`)
    $('#blogTitle h2').after(`<div class="custom-links"></div>`)
    // github icon
    if (github.enable) {
        $('.custom-links').append(`<a class="github" href="${github.url}"></a>`)
    }
    // qq
    // $('.custom-links').append(`<a class="qq"></a>`)
    // 知乎
    $('.custom-links').append(`<a class="zhihu"></a>`)
}

// 首页 header 不要上下翻滚
const preventHeaderChange = () => {
    if (pageName() !== 'index') return
    $('#header').addClass('navlist-fix')
}

const header = () => {
    headerNickname()
    buildHeader()
    buildAva()
    headerBtn()
    customLinks()
    headerInnerPostTitle()
    preventHeaderChange()
}

module.exports = header

scroll/index.js

// import './index.scss'
import { userAgent } from '@tools'
// 只触发一次向上或向下
// 如果又重新反向滚动则再触发一次
function scrollOnce() {
    function scrollFunc() {
        let scrollDirection
        if (!scrollAction) {
            scrollAction = window.pageYOffset
        }
        let diff = scrollAction - window.pageYOffset
        if (diff < 0) {
            scrollDirection = 'down'
        } else if (diff > 0) {
            scrollDirection = 'up'
        } else {
            // First scroll event
        }
        scrollAction = window.pageYOffset
        return scrollDirection
    }
    let scrollAction, originalDir

    $(window).scroll(function() {
        if (userAgent() !== 'pc') return
        let direction = scrollFunc()
        if (direction && originalDir != direction) {
            if (direction == 'down') {
                $('#header').addClass('is-active')
                $('#catalog').addClass('catalog-scroll-up')
                $('#catalog').removeClass('catalog-scroll-down')
            } else {
                $('#header').removeClass('is-active')
                $('#catalog').removeClass('catalog-scroll-up')
                $('#catalog').addClass('catalog-scroll-down')
            }
            originalDir = direction
        }
    })
}

function scroll() {
    scrollOnce()
    // ...
}

module.exports = scroll

side/index.js

import './index.scss'
import { poll } from '@tools'
import { actions } from '@constants/element'

const sideItemToggle = () => {
    for (const { title, content } of actions) {
        if (!title.length) continue
        $(title).click(function() {
            $(content).toggle('fast', 'linear', function() {
                $(this).css('display') === 'none'
                    ? $(title).removeClass('is-active')
                    : $(title).addClass('is-active')
            })
        })
    }
}

const addCalendarTitle = () => {
    $('#blog-calendar').prepend(`<div id="blog-calendar-title">博客日历</div>`)
}

const side = () => {
    addCalendarTitle()
    setTimeout(() => {
        poll($('#blog-sidecolumn').length, sideItemToggle)
    }, 0)
}

module.exports = side
  1. simple/index.js

唯一需要写的样板代码:

import './style/index.scss'
import AwesCnb from '@awescnb'

class Simple extends AwesCnb {
    constructor() {
        super()
        super.init(this.init)
    }

    init() {
        require('./build')()
        require('./plugins')()
    }
}

new Simple()

构建

  • 运行 npm start 分别对首页、随笔详情页、标签页等调整
  • 运行 npm run build 打包

皮肤 simple 所有样式和逻辑加起来有 130+kb,没有异常。如果想拥有更好的体验可以将 css 分离,在文章开头的配置介绍中提供了这个选项。最后推送上去就能在博客园切换到新皮肤了。

链接

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