feat: add copy markdowm/text button for docs pages

assets/js/copy-to-llm.js

@@ -0,0 +1,105 @@
+(function () {
+  'use strict';
+
+  var container = document.getElementById('copy-fulltext');
+  if (!container) return;
+
+  var defaultBtn = document.getElementById('copy-fulltext-default');
+  var options = container.querySelectorAll('.dropdown-item');
+  var toast = document.getElementById('copy-fulltext-toast');
+
+  // Default button copies markdown (most useful for LLM)
+  defaultBtn.addEventListener('click', function () {
+    copyContent('markdown');
+  });
+
+  options.forEach(function (opt) {
+    opt.addEventListener('click', function () {
+      copyContent(this.getAttribute('data-copy-type'));
+    });
+  });
+
+  function getSourceData() {
+    var mdEl = document.getElementById('copy-fulltext-markdown');
+    return {
+      title: container.getAttribute('data-title') || '',
+      url: container.getAttribute('data-url') || '',
+      successMarkdown: container.getAttribute('data-success-markdown') || 'Copied as Markdown',
+      successText: container.getAttribute('data-success-text') || 'Copied as plain text',
+      markdown: mdEl ? mdEl.textContent : ''
+    };
+  }
+
+  function getPlainText() {
+    var contentEl = document.querySelector('.td-content');
+    if (!contentEl) return '';
+    var clone = contentEl.cloneNode(true);
+
+    // Remove UI elements that shouldn't be copied
+    var removals = clone.querySelectorAll('.copy-fulltext, .td-page-meta, script, style, .feedback--container');
+    removals.forEach(function (el) { el.remove(); });
+
+    // Replace mermaid SVGs with placeholder (SVG textContent is gibberish)
+    clone.querySelectorAll('pre.mermaid, .mermaid').forEach(function (el) {
+      var placeholder = document.createElement('p');
+      placeholder.textContent = '[diagram]';
+      el.replaceWith(placeholder);
+    });
+
+    // Replace images with their alt text
+    clone.querySelectorAll('img').forEach(function (img) {
+      var alt = img.getAttribute('alt');
+      if (alt) {
+        var text = document.createElement('span');
+        text.textContent = '[image: ' + alt + ']';
+        img.replaceWith(text);
+      } else {
+        img.remove();
+      }
+    });
+
+    return clone.textContent.replace(/\n{3,}/g, '\n\n').trim();
+  }
+
+  function copyContent(type) {
+    var data = getSourceData();
+    var text = '';
+    var actualType = type;
+
+    if (type === 'markdown' && data && data.markdown) {
+      text = '# ' + data.title + '\n\n' + data.markdown;
+      if (data.url) {
+        text += '\n\n---\nSource: ' + data.url;
+      }
+    } else {
+      actualType = 'text';
+      text = getPlainText();
+    }
+
+    copyToClipboard(text, data, actualType);
+  }
+
+  function copyToClipboard(text, data, type) {
+    navigator.clipboard.writeText(text).then(function () {
+      showFeedback(data, type);
+    });
+  }
+
+  function showFeedback(data, type) {
+    // Swap icon to checkmark
+    var icon = defaultBtn.querySelector('i');
+    icon.classList.replace('fa-copy', 'fa-check');
+    defaultBtn.classList.add('copy-fulltext__btn--success');
+
+    // Show toast
+    var toastText = type === 'markdown' ? data.successMarkdown : data.successText;
+    toast.textContent = '✅ ' + toastText;
+    toast.classList.add('copy-fulltext__toast--visible');
+
+    setTimeout(function () {
+      icon.classList.replace('fa-check', 'fa-copy');
+      defaultBtn.classList.remove('copy-fulltext__btn--success');
+      toast.classList.remove('copy-fulltext__toast--visible');
+    }, 2000);
+  }
+})();

assets/scss/_copy-to-llm.scss

@@ -0,0 +1,30 @@
+.copy-fulltext {
+  float: right;
+  margin-top: 0.25rem;
+
+  &__btn--success {
+    color: $success !important;
+  }
+
+  &__toast {
+    display: none;
+    position: absolute;
+    bottom: 100%;
+    left: 50%;
+    transform: translateX(-50%);
+    margin-bottom: 0.5rem;
+    padding: 0.5rem 0.75rem;
+    background: $white;
+    border: 1px solid $gray-300;
+    border-radius: $border-radius;
+    box-shadow: 0 4px 12px rgba($black, 0.1);
+    font-size: 0.875rem;
+    color: $gray-700;
+    white-space: nowrap;
+    z-index: 11;
+
+    &--visible {
+      display: block;
+    }
+  }
+}

assets/scss/main.scss

@@ -33,6 +33,7 @@
 @import "community";
 @import "markdown";
 @import "safety";
+@import "copy-to-llm";
 
 @if $td-enable-google-fonts {
     @import url($web-font-path);

i18n/en.toml

@@ -80,3 +80,19 @@ other = "404, Page not found"
 title = 'Out projects'
 [taxo.page.header]
 projects = 'Projects'
+
+# Copy full text
+[copy_full_text]
+other = "Copy Full Text"
+
+[copy_markdown]
+other = "Copy Markdown"
+
+[copy_plain_text]
+other = "Copy Text"
+
+[copy_success_markdown]
+other = "Copied as Markdown"
+
+[copy_success_text]
+other = "Copied as plain text"

i18n/zh.toml

@@ -74,3 +74,19 @@ other = "404, 访问的页面并不存在"
 title = '项目列表'
 [taxo.page.header]
 projects = '项目'
+
+# Copy full text
+[copy_full_text]
+other = "复制全文"
+
+[copy_markdown]
+other = "复制 Markdown"
+
+[copy_plain_text]
+other = "复制文本"
+
+[copy_success_markdown]
+other = "已复制 Markdown 格式"
+
+[copy_success_text]
+other = "已复制纯文本"

layouts/_default/content.html

@@ -1,4 +1,5 @@
 <div class="td-content">
+	{{ partial "copy-to-llm.html" . }}
 	<h1>{{ .Title }}</h1>
 	{{ with .Params.description }}<div class="lead">{{ . | markdownify }}</div>{{ end }}
 	<header class="article-meta">

layouts/docs/list.html

@@ -1,5 +1,6 @@
 {{ define "main" }}
 <div class="td-content">
+	{{ partial "copy-to-llm.html" . }}
 	<h1>{{ .Title }}</h1>
   {{ with .Params.description }}<div class="lead">{{ . | markdownify }}</div>{{ end }}
 	<header class="article-meta">

layouts/partials/copy-to-llm.html

@@ -0,0 +1,27 @@
+{{/* Copy full text button with split dropdown for markdown / plain text */}}
+<div class="copy-fulltext btn-group" id="copy-fulltext"
+  data-title="{{ .Title }}"
+  data-url="{{ .Permalink }}"
+  data-success-markdown="{{ T "copy_success_markdown" }}"
+  data-success-text="{{ T "copy_success_text" }}">
+  <button type="button" class="btn btn-sm btn-outline-secondary" id="copy-fulltext-default" title="{{ T "copy_full_text" }}">
+    <i class="fa-regular fa-copy"></i>
+    <span>{{ T "copy_full_text" }}</span>
+  </button>
+  <button type="button" class="btn btn-sm btn-outline-secondary dropdown-toggle dropdown-toggle-split"
+    data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+    <span class="sr-only">Toggle Dropdown</span>
+  </button>
+  <div class="dropdown-menu dropdown-menu-right">
+    <button class="dropdown-item" data-copy-type="markdown">
+      {{ T "copy_markdown" }}
+    </button>
+    <button class="dropdown-item" data-copy-type="text">
+      {{ T "copy_plain_text" }}
+    </button>
+  </div>
+  <div class="copy-fulltext__toast" id="copy-fulltext-toast"></div>
+</div>
+
+{{/* Embed raw markdown for copy-as-markdown */}}
+<script id="copy-fulltext-markdown" type="text/plain">{{ .RawContent }}</script>

layouts/partials/scripts.html

@@ -31,10 +31,11 @@
 {{ $jsSearch := resources.Get "js/search.js" | resources.ExecuteAsTemplate "js/search.js" .Site.Home }}
 {{ $jsMermaid := resources.Get "js/mermaid.js" | resources.ExecuteAsTemplate "js/mermaid.js" . }}
 {{ $jsPlantuml := resources.Get "js/plantuml.js" | resources.ExecuteAsTemplate "js/plantuml.js" . }}
+{{ $jsCopyToLLM := resources.Get "js/copy-to-llm.js" }}
 {{ if .Site.Params.offlineSearch }}
 {{ $jsSearch = resources.Get "js/offline-search.js" }}
 {{ end }}
-{{ $js := (slice $jsBase $security $jsAnchor $jsSearch $jsMermaid $jsPlantuml) | resources.Concat "js/main.js" }}
+{{ $js := (slice $jsBase $security $jsAnchor $jsSearch $jsMermaid $jsPlantuml $jsCopyToLLM) | resources.Concat "js/main.js" }}
 {{ if hugo.IsServer }}
 <script src="{{ $js.RelPermalink }}"></script>
 {{ else }}