展示toc目录

_config.yml

@@ -91,6 +91,9 @@ prism:
   theme: one-light
   line_numbers: true
 
+# TOC
+toc: true
+
 # Permalink
 # See: https://github.com/kaeyleo/jekyll-theme-H2O/issues/35
 permalink: /:year/:month/:day/:title.html

_includes/toc.html

@@ -0,0 +1,182 @@
+{% capture tocWorkspace %}
+    {% comment %}
+        Copyright (c) 2017 Vladimir "allejo" Jimenez
+
+        Permission is hereby granted, free of charge, to any person
+        obtaining a copy of this software and associated documentation
+        files (the "Software"), to deal in the Software without
+        restriction, including without limitation the rights to use,
+        copy, modify, merge, publish, distribute, sublicense, and/or sell
+        copies of the Software, and to permit persons to whom the
+        Software is furnished to do so, subject to the following
+        conditions:
+
+        The above copyright notice and this permission notice shall be
+        included in all copies or substantial portions of the Software.
+
+        THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+        EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+        OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+        NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+        HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+        WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+        FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+        OTHER DEALINGS IN THE SOFTWARE.
+    {% endcomment %}
+    {% comment %}
+        Version 1.2.0
+          https://github.com/allejo/jekyll-toc
+
+        "...like all things liquid - where there's a will, and ~36 hours to spare, there's usually a/some way" ~jaybe
+
+        Usage:
+            {% include toc.html html=content sanitize=true class="inline_toc" id="my_toc" h_min=2 h_max=3 %}
+
+        Parameters:
+            * html         (string) - the HTML of compiled markdown generated by kramdown in Jekyll
+
+        Optional Parameters:
+            * sanitize      (bool)   : false  - when set to true, the headers will be stripped of any HTML in the TOC
+            * class         (string) :   ''   - a CSS class assigned to the TOC
+            * id            (string) :   ''   - an ID to assigned to the TOC
+            * h_min         (int)    :   1    - the minimum TOC header level to use; any header lower than this value will be ignored
+            * h_max         (int)    :   6    - the maximum TOC header level to use; any header greater than this value will be ignored
+            * ordered       (bool)   : false  - when set to true, an ordered list will be outputted instead of an unordered list
+            * item_class    (string) :   ''   - add custom class(es) for each list item; has support for '%level%' placeholder, which is the current heading level
+            * submenu_class (string) :   ''   - add custom class(es) for each child group of headings; has support for '%level%' placeholder which is the current "submenu" heading level
+            * base_url      (string) :   ''   - add a base url to the TOC links for when your TOC is on another page than the actual content
+            * anchor_class  (string) :   ''   - add custom class(es) for each anchor element
+            * skip_no_ids   (bool)   : false  - skip headers that do not have an `id` attribute
+
+        Output:
+            An ordered or unordered list representing the table of contents of a markdown block. This snippet will only
+            generate the table of contents and will NOT output the markdown given to it
+    {% endcomment %}
+
+    {% capture newline %}
+    {% endcapture %}
+    {% assign newline = newline | rstrip %} <!-- Remove the extra spacing but preserve the newline -->
+
+    {% capture deprecation_warnings %}{% endcapture %}
+
+    {% if include.baseurl %}
+        {% capture deprecation_warnings %}{{ deprecation_warnings }}<!-- jekyll-toc :: "baseurl" has been deprecated, use "base_url" instead -->{{ newline }}{% endcapture %}
+    {% endif %}
+
+    {% if include.skipNoIDs %}
+        {% capture deprecation_warnings %}{{ deprecation_warnings }}<!-- jekyll-toc :: "skipNoIDs" has been deprecated, use "skip_no_ids" instead -->{{ newline }}{% endcapture %}
+    {% endif %}
+
+    {% capture jekyll_toc %}{% endcapture %}
+    {% assign orderedList = include.ordered | default: false %}
+    {% assign baseURL = include.base_url | default: include.baseurl | default: '' %}
+    {% assign skipNoIDs = include.skip_no_ids | default: include.skipNoIDs | default: false %}
+    {% assign minHeader = include.h_min | default: 1 %}
+    {% assign maxHeader = include.h_max | default: 6 %}
+    {% assign nodes = include.html | strip | split: '<h' %}
+
+    {% assign firstHeader = true %}
+    {% assign currLevel = 0 %}
+    {% assign lastLevel = 0 %}
+
+    {% capture listModifier %}{% if orderedList %}ol{% else %}ul{% endif %}{% endcapture %}
+
+    {% for node in nodes %}
+        {% if node == "" %}
+            {% continue %}
+        {% endif %}
+
+        {% assign currLevel = node | replace: '"', '' | slice: 0, 1 | times: 1 %}
+
+        {% if currLevel < minHeader or currLevel > maxHeader %}
+            {% continue %}
+        {% endif %}
+
+        {% assign _workspace = node | split: '</h' %}
+
+        {% assign _idWorkspace = _workspace[0] | split: 'id="' %}
+        {% assign _idWorkspace = _idWorkspace[1] | split: '"' %}
+        {% assign htmlID = _idWorkspace[0] %}
+
+        {% assign _classWorkspace = _workspace[0] | split: 'class="' %}
+        {% assign _classWorkspace = _classWorkspace[1] | split: '"' %}
+        {% assign htmlClass = _classWorkspace[0] %}
+
+        {% if htmlClass contains "no_toc" %}
+            {% continue %}
+        {% endif %}
+
+        {% if firstHeader %}
+            {% assign minHeader = currLevel %}
+        {% endif %}
+
+        {% capture _hAttrToStrip %}{{ _workspace[0] | split: '>' | first }}>{% endcapture %}
+        {% assign header = _workspace[0] | replace: _hAttrToStrip, '' %}
+
+        {% if include.item_class and include.item_class != blank %}
+            {% capture listItemClass %} class="{{ include.item_class | replace: '%level%', currLevel | split: '.' | join: ' ' }}"{% endcapture %}
+        {% endif %}
+
+        {% if include.submenu_class and include.submenu_class != blank %}
+            {% assign subMenuLevel = currLevel | minus: 1 %}
+            {% capture subMenuClass %} class="{{ include.submenu_class | replace: '%level%', subMenuLevel | split: '.' | join: ' ' }}"{% endcapture %}
+        {% endif %}
+
+        {% capture anchorBody %}{% if include.sanitize %}{{ header | strip_html }}{% else %}{{ header }}{% endif %}{% endcapture %}
+
+        {% if htmlID %}
+            {% capture anchorAttributes %} href="{% if baseURL %}{{ baseURL }}{% endif %}#{{ htmlID }}"{% endcapture %}
+
+            {% if include.anchor_class %}
+                {% capture anchorAttributes %}{{ anchorAttributes }} class="{{ include.anchor_class | split: '.' | join: ' ' }}"{% endcapture %}
+            {% endif %}
+            {% assign anchorBody2 = anchorBody | remove: "：" | replace: " ", "-" | downcase %}
+            {% capture listItem %}<a onclick="scrollToAdjust('{{ anchorBody2 }}')">{{ anchorBody }}</a>{% endcapture %}
+        {% elsif skipNoIDs == true %}
+            {% continue %}
+        {% else %}
+            {% capture listItem %}{{ anchorBody }}{% endcapture %}
+        {% endif %}
+
+        {% if currLevel > lastLevel %}
+            {% capture jekyll_toc %}{{ jekyll_toc }}<{{ listModifier }}{{ subMenuClass }}>{% endcapture %}
+        {% elsif currLevel < lastLevel %}
+            {% assign repeatCount = lastLevel | minus: currLevel %}
+
+            {% for i in (1..repeatCount) %}
+                {% capture jekyll_toc %}{{ jekyll_toc }}</li></{{ listModifier }}>{% endcapture %}
+            {% endfor %}
+
+            {% capture jekyll_toc %}{{ jekyll_toc }}</li>{% endcapture %}
+        {% else %}
+            {% capture jekyll_toc %}{{ jekyll_toc }}</li>{% endcapture %}
+        {% endif %}
+
+        {% capture jekyll_toc %}{{ jekyll_toc }}<li{{ listItemClass }}>{{ listItem }}{% endcapture %}
+
+        {% assign lastLevel = currLevel %}
+        {% assign firstHeader = false %}
+    {% endfor %}
+
+    {% assign repeatCount = minHeader | minus: 1 %}
+    {% assign repeatCount = lastLevel | minus: repeatCount %}
+    {% for i in (1..repeatCount) %}
+        {% capture jekyll_toc %}{{ jekyll_toc }}</li></{{ listModifier }}>{% endcapture %}
+    {% endfor %}
+
+    {% if jekyll_toc != '' %}
+        {% assign rootAttributes = '' %}
+        {% if include.class and include.class != blank %}
+            {% capture rootAttributes %} class="{{ include.class | split: '.' | join: ' ' }}"{% endcapture %}
+        {% endif %}
+
+        {% if include.id and include.id != blank %}
+            {% capture rootAttributes %}{{ rootAttributes }} id="{{ include.id }}"{% endcapture %}
+        {% endif %}
+
+        {% if rootAttributes %}
+            {% assign nodes = jekyll_toc | split: '>' %}
+            {% capture jekyll_toc %}<{{ listModifier }}{{ rootAttributes }}>{{ nodes | shift | join: '>' }}>{% endcapture %}
+        {% endif %}
+    {% endif %}
+{% endcapture %}{% assign tocWorkspace = '' %}{{ deprecation_warnings }}{{ jekyll_toc -}}

_layouts/post.html

@@ -112,6 +112,36 @@ <h2 class="post-subtitle">{{ page.subtitle }}</h2>
     {% endif %}
   </section>
 
+  {% if page.content contains 'h1' or page.content contains 'h2' or page.content contains 'h3' or page.content
+  contains 'h4' or page.content contains 'h5' or page.content contains 'h6' and site.toc %}
+  <div class="table-of-contents">
+  <div class="toc-header"><h2>目录</h2></div>
+  <div class="toc-body">
+    {% include toc.html html=content %}
+  </div>
+  {% else %}
+  <div class="table-of-contents hidden">
+    {% endif %}
+  </div>
+
+  <!-- toc导航 -->
+  <section id="tools">
+    {% if page.content contains 'h1' or page.content contains 'h2' or page.content contains 'h3' or page.content contains 'h4' or page.content contains 'h5' or page.content contains 'h6' and site.toc %}
+    <div class="tool toc">
+      <svg class="icon b1 active" aria-hidden="true">
+        <use xlink:href="#icon-toc"></use>
+      </svg>
+      <svg class="icon b2" aria-hidden="true">
+        <use xlink:href="#icon-exit"></use>
+      </svg>
+      <span class="extra-info">目录</span>
+    </div>
+    {% endif %}
+  </section>
+
+  <!-- Iconfont -->
+  <script src="https://at.alicdn.com/t/c/font_3046306_ujr2yq34hw.js"></script>
+
   {% include footer.html %}
 
   <script src="{{ "/assets/js/social-share.min.js" | relative_url }}"></script>
@@ -150,6 +180,19 @@ <h2 class="post-subtitle">{{ page.subtitle }}</h2>
   {% endif %}
 
   <script src="{{ "/assets/js/index.min.js" | relative_url }}"></script>
+  <script>
+    /** Toc导航目录，点击跳转到对应的标题 */
+    function scrollToAdjust(id){
+      var element = document.getElementById(id);
+      var headerOffset = 90;
+      var elementPosition = element.getBoundingClientRect().top;
+      var offsetPosition = elementPosition + window.scrollY - headerOffset;
+      window.scrollTo({
+        top: offsetPosition,
+        behavior: "smooth"
+      });
+    }
+  </script>
 </body>
 
 </html>