添加對 ChartJS 雙模式的支持

README.md

@@ -98,6 +98,7 @@ npm i hexo-theme-butterfly
 - [x] Busuanzi visitor counter
 - [x] Medium Zoom/Fancybox
 - [x] Mermaid
+- [x] Chart.js
 - [x] Justified Gallery
 - [x] Lazyload images
 - [x] Instantpage/Pangu/Snackbar notification toast/PWA......

README_CN.md

@@ -98,6 +98,7 @@ theme: butterfly
 - [x] 不蒜子訪問統計
 - [x] 兩種大圖模式（Medium Zoom/Fancybox）
 - [x] Mermaid 圖表顯示
+- [x] Chart.js 圖表顯示
 - [x] 照片牆
 - [x] 圖片懶加載
 - [x] Instantpage/Pangu/Snackbar彈窗/PWA......

_config.yml

@@ -602,7 +602,7 @@ facebook_comments:
   pageSize: 10
   # Choose: social / time / reverse_time
   order_by: social
-  lang: zh_TW
+  lang: en_US
 
 # Twikoo
 # https://github.com/imaegoo/twikoo
@@ -924,6 +924,25 @@ mermaid:
     light: default
     dark: dark
 
+# chartjs
+# see https://www.chartjs.org/docs/latest/
+chartjs:
+  enable: false
+  # Do not modify unless you understand how they work.
+  # The default settings are only used when the MD syntax is not specified.
+  # General font color for the chart
+  fontColor:
+    light: "rgba(0, 0, 0, 0.8)"
+    dark: "rgba(255, 255, 255, 0.8)"
+  # General border color for the chart
+  borderColor:
+    light: "rgba(0, 0, 0, 0.1)"
+    dark: "rgba(255, 255, 255, 0.2)"
+  # Background color for scale labels on radar and polar area charts
+  scale_ticks_backdropColor:
+    light: "transparent"
+    dark: "transparent"
+
 # Note - Bootstrap Callout
 note:
   # Note tag style values:
@@ -1050,6 +1069,7 @@ CDN:
     # canvas_fluttering_ribbon:
     # canvas_nest:
     # canvas_ribbon:
+    # chartjs:
     # click_heart:
     # clickShowText:
     # disqusjs:

layout/includes/third-party/math/chartjs.pug

@@ -0,0 +1,91 @@
+- const { fontColor, borderColor, scale_ticks_backdropColor } = theme.chartjs
+
+script.
+  (() => {
+    const $chartjs = document.querySelectorAll('#article-container .chartjs-container')
+    if ($chartjs.length === 0) return
+
+    const applyThemeDefaultsConfig = theme => {
+      if (theme === 'dark-mode') {
+        Chart.defaults.color = "!{fontColor.dark}"
+        Chart.defaults.borderColor = "!{borderColor.dark}"
+        Chart.defaults.scale.ticks.backdropColor = "!{scale_ticks_backdropColor.dark}"
+      } else {
+        Chart.defaults.color = "!{fontColor.light}"
+        Chart.defaults.borderColor = "!{borderColor.light}"
+        Chart.defaults.scale.ticks.backdropColor = "!{scale_ticks_backdropColor.light}"
+      }
+    }
+
+    // Recursively traverse the config object and automatically apply theme-specific color schemes
+    const applyThemeConfig = (obj, theme) => {
+      if (typeof obj !== 'object' || obj === null) return
+
+      Object.keys(obj).forEach(key => {
+        const value = obj[key]
+        // If the property is an object and has theme-specific options, apply them
+        if (typeof value === 'object' && value !== null) {
+          if (value[theme]) {
+            obj[key] = value[theme] // Apply the value for the current theme
+          } else {
+            // Recursively process child objects
+            applyThemeConfig(value, theme)
+          }
+        }
+      })
+    }
+
+    const runChartJS = () => {
+      window.loadChartJS = true
+
+      Array.from($chartjs).forEach((item, index) => {
+        const chartSrc = item.firstElementChild
+        const chartID = item.getAttribute('data-chartjs-id') || ('chartjs-' + index) // Use custom ID or default ID
+        const width = item.getAttribute('data-width')
+        const existingCanvas = document.getElementById(chartID)
+
+        // If a canvas already exists, remove it to avoid rendering duplicates
+        if (existingCanvas) {
+            existingCanvas.parentNode.remove()
+        }
+
+        const chartDefinition = chartSrc.textContent
+        const canvas = document.createElement('canvas')
+        canvas.id = chartID
+
+        const div = document.createElement('div')
+        div.className = 'chartjs-wrap'
+
+        if (width) {
+          div.style.width = width
+        }
+
+        div.appendChild(canvas)
+        chartSrc.insertAdjacentElement('afterend', div)
+
+        const ctx = document.getElementById(chartID).getContext('2d')
+
+        const config = JSON.parse(chartDefinition)
+
+        const theme = document.documentElement.getAttribute('data-theme') === 'dark' ? 'dark-mode' : 'light-mode'
+
+        // Set default styles (initial setup)
+        applyThemeDefaultsConfig(theme)
+
+        // Automatically traverse the config and apply dual-mode color schemes
+        applyThemeConfig(config, theme)
+
+        new Chart(ctx, config)
+      })
+    }
+
+    const loadChartJS = () => {
+      window.loadChartJS ? runChartJS() : btf.getScript('!{url_for(theme.asset.chartjs)}').then(runChartJS)
+    }
+
+    // Listen for theme change events
+    btf.addGlobalFn('themeChange', runChartJS, 'chartjs')
+    btf.addGlobalFn('encrypt', runChartJS, 'chartjs')
+
+    window.pjax ? loadChartJS() : document.addEventListener('DOMContentLoaded', loadChartJS)
+  })()

layout/includes/third-party/math/index.pug

@@ -8,4 +8,7 @@ case theme.math.use
       include ./katex.pug
 
 if theme.mermaid.enable
-  include ./mermaid.pug
+  include ./mermaid.pug
+
+if theme.chartjs.enable
+  include ./chartjs.pug

plugins.yml

@@ -42,6 +42,10 @@ canvas_ribbon:
   name: butterfly-extsrc
   file: dist/canvas-ribbon.min.js
   version: 1.1.4
+chartjs:
+  name: chart.js
+  file: dist/chart.umd.min.js
+  version: 4.4.4
 clickShowText:
   name: butterfly-extsrc
   file: dist/click-show-text.min.js

scripts/events/merge_config.js

@@ -341,7 +341,7 @@ hexo.extend.filter.register('before_generate', () => {
       user_id: null,
       pageSize: 10,
       order_by: 'social',
-      lang: 'zh_TW'
+      lang: 'en_US'
     },
     twikoo: {
       envId: null,
@@ -512,6 +512,21 @@ hexo.extend.filter.register('before_generate', () => {
         dark: 'dark'
       }
     },
+    chartjs: {
+      enable: false,
+      fontColor: {
+        light: 'rgba(0, 0, 0, 0.8)',
+        dark: 'rgba(255, 255, 255, 0.8)'
+      },
+      borderColor: {
+        light: 'rgba(0, 0, 0, 0.1)',
+        dark: 'rgba(255, 255, 255, 0.2)'
+      },
+      scale_ticks_backdropColor: {
+        light: 'transparent',
+        dark: 'transparent'
+      }
+    },
     note: {
       style: 'flat',
       icons: true,

scripts/tag/chartjs.js

@@ -0,0 +1,49 @@
+/**
+ * Butterfly
+ * chartjs
+ * https://www.chartjs.org/
+ * {% chartjs [width, abreast, chartId] %}
+ * <!-- chart -->
+ * <!-- endchart -->
+ * <!-- desc -->
+ * <!-- enddesc -->
+ * {% endchartjs %}
+ */
+
+'use strict'
+
+const { escapeHTML } = require('hexo-util')
+
+const chartjs = (args, content) => {
+  if (!content) return
+
+  const chartRegex = /<!--\s*chart\s*-->\n([\w\W\s\S]*?)<!--\s*endchart\s*-->/
+  const descRegex = /<!--\s*desc\s*-->\n([\w\W\s\S]*?)<!--\s*enddesc\s*-->/
+  const selfConfig = args.join(' ').trim()
+
+  const [width = '', layout = false, chartId = ''] = selfConfig.split(',').map(s => s.trim())
+
+  const chartMatch = content.match(chartRegex)
+  const descMatch = content.match(descRegex)
+
+  if (!chartMatch) {
+    hexo.log.warn('chartjs tag: chart content is required!')
+    return
+  }
+
+  const chartConfig = chartMatch && chartMatch[1] ? chartMatch[1] : ''
+  const descContent = descMatch && descMatch[1] ? descMatch[1] : ''
+
+  const renderedDesc = descContent ? hexo.render.renderSync({ text: descContent, engine: 'markdown' }).trim() : ''
+
+  const descDOM = renderedDesc ? `<div class="chartjs-desc">${renderedDesc}</div>` : ''
+  const abreastClass = layout ? ' chartjs-abreast' : ''
+  const widthStyle = width ? `data-width="${width}%"` : ''
+
+  return `<div class="chartjs-container${abreastClass}" data-chartjs-id="${chartId}" ${widthStyle}>
+            <pre class="chartjs-src" hidden>${escapeHTML(chartConfig)}</pre>
+            ${descDOM}
+          </div>`
+}
+
+hexo.extend.tag.register('chartjs', chartjs, { ends: true })

source/css/_layout/third-party.styl

@@ -75,6 +75,32 @@ if hexo-config('mermaid.enable')
     pre > code.mermaid
       display: none
 
+if hexo-config('chartjs.enable')
+  .chartjs-container
+    display: flex
+    flex-direction: column
+    justify-content: center
+    align-items: center
+    margin: 0 0 20px
+    text-align: center
+    gap: 20px
+
+    +maxWidth600()
+      .chartjs-wrap
+        width: 100% !important
+
+    &.chartjs-abreast
+      flex-direction: row
+
+      +maxWidth600()
+        flex-direction: column
+
+    .chartjs-wrap
+      width: -webkit-fill-available
+
+    canvas
+      display: inline-block !important
+
 .utterances,
 .fb-comments iframe
   width: 100% !important