Add copyright when copying

_config.yml

@@ -298,6 +298,10 @@ post_edit:
 # Available values: left | right | false
 post_navigation: left
 
+# Add copyright when copying
+post_copyright:
+  enable: false
+  maxLength: 10 # Trigger length
 
 # ---------------------------------------------------------------
 # Custom Page Settings

layout/_macro/post.njk

@@ -224,6 +224,10 @@
         {{ partial('_partials/post/post-copyright.njk') }}
       {%- endif %}
 
+      {%- if theme.post_copyright.enable %}
+        {{ partial('_partials/post/post-clipboard.njk') }}
+      {%- endif %}
+
       {%- if theme.follow_me %}
         {{ partial('_partials/post/post-followme.njk', {}, {cache: theme.cache.enable}) }}
       {%- endif %}

layout/_partials/post/post-clipboard.njk

@@ -0,0 +1,11 @@
+{%- if theme.post_copyright.enable %}
+  <script>
+    document.body.oncopy = function (e) {
+      var selection = window.getSelection();
+      if (("" + selection).length < {{ theme.post_copyright.maxLength }}) return;
+      e.preventDefault();
+      let copyMsg = window.getSelection() + "作者: {{ page.author or author }} 链接: {{ page.permalink }}"
+      e.clipboardData.setData("Text", copyMsg);
+    }
+  </script>
+{%- endif %}

layout/_partials/post/post-copyright.njk

@@ -17,3 +17,15 @@
   </li>
 </ul>
 </div>
+
+{%- if theme.post_copyright.enable %}
+  <script>
+    document.body.oncopy = function (e) {
+      var selection = window.getSelection();
+      if (("" + selection).length < {{ theme.post_copyright.maxLength }}) return;
+      e.preventDefault();
+      let copyMsg = window.getSelection() + "作者: {{ page.author or author }} 链接: {{ page.permalink }}"
+      e.clipboardData.setData("Text", copyMsg);
+    }
+  </script>
+{%- endif %}