Bump version to 5.1.0

Bootstrap 4.6.x has its own class `.shadow`

.github/CONTRIBUTING.md

@@ -1,16 +1,43 @@
 # How to Contribute
 
-I want to thank you for sparing a time to improve this project! Here are some guidelines for contributing：
+We want to thank you for sparing time to improve this project! Here are some guidelines for contributing：
 
-To ensure that the blog design is not confused, this project does not accept suggestions for design changes, such as color scheme, fonts, typography, etc. If your request is about an enhancement, it is recommended to first submit a [`Feature Request`](https://github.com/cotes2020/jekyll-theme-chirpy/issues/new?labels=enhancement&template=feature_request.md) issue to discuss whether your idea fits the project. 
+To ensure that the blog design is not confused, this project does not accept suggestions for design changes, such as color scheme, fonts, typography, etc. If your request is about an enhancement, it is recommended to first submit a [_Feature Request_](https://github.com/cotes2020/jekyll-theme-chirpy/issues/new?labels=enhancement&template=feature_request.md) issue to discuss whether your idea fits the project.
+
+## Basic Process
 
 Generally, contribute to the project by:
 
 1. Fork this project on GitHub and clone it locally.
-2. Create a new branch from `master` and give it a descriptive name (e.g., `my-new-feature`, `fix-a-bug`).
-3. After completing the development, commit and push to remote.
-4. Submit a new pull request.
+2. Create a new branch from the default branch and give it a descriptive name (e.g., `my-new-feature`, `fix-a-bug`).
+3. After completing the development, submit a new _Pull Request_.
+
+## Modifying JavaScript
+
+If your contribution involves JS modification, please read the following sections.
+
+### Inline Scripts
+
+If you need to add comments to the inline JS (the JS code between the tags `<script>` and `</script>`), please use `/**/` instead of two slashes `//`. Because the HTML will be compressed by [jekyll-compress-html](https://github.com/penibelst/jekyll-compress-html) during deployment, but it cannot handle the `//` properly. And this will disrupt the structure of the compressed HTML.
+
+### External Scripts
+
+If you need to add or modify JavaScripts in the directory `_javascript`, you need to install [Gulp.js](https://gulpjs.com/docs/en/getting-started/quick-start).
+
+During development, real-time debugging can be performed through the following commands:
+
+```console
+$ bash tools/run.sh
+```
+
+Open another terminal tab and run:
+
+```console
+$ gulp dev # Type 'Ctrl + C' to stop
+```
+
+After debugging, run the command `gulp` (without any argument) will automatically output the compressed files to the directory `assests/js/dist/`.
 
 ---
 
-:tada: Your volunteering will make the open source world more beautiful, thanks again! :tada:
+:tada: Your volunteering will make the open-source world more beautiful, thanks again! :tada:

.github/FUNDING.yml

@@ -1,3 +1,2 @@
-custom:
-  - https://www.buymeacoffee.com/coteschung
-  - https://cotes.gitee.io/alipay-wechat-donation
+ko_fi: coteschung
+custom: https://cotes.gitee.io/alipay-wechat-donation

.github/ISSUE_TEMPLATE/bug_report.md

@@ -6,12 +6,15 @@ about: Create a report to help us improve
 <!-- NOTE: Please maintain all sections, otherwise the issue will be automatically closed :) -->
 
 ## Checklist
-<!-- Please complete the following list of tasks, and then check it by change the "[ ]" to "[x]" -->
-- [ ] I have read the [tutorials](https://chirpy.cotes.info/categories/tutorial/) and know the correct effect of the functional design.
-- [ ] There are no similar reports on existing issues (including closed ones).
-- [ ] I found the bug on the latest code of `master` branch.
+
+<!-- Please complete the following list of tasks, and then check it by changing the "[ ]" to "[x]" -->
+
+- [ ] I have read the [tutorials](https://cotes2020.github.io/chirpy-demo/categories/tutorial/) and know the correct effect of the functional design.
+- [ ] There are no similar reports on [existing issues](https://github.com/cotes2020/jekyll-theme-chirpy/issues?q=is%3Aissue) (including closed ones).
+- [ ] I found the bug on the latest code of the `master` branch.
 
 ## Describe the bug
+
 <!-- A clear and concise description of what the bug is. -->
 
 ### To Reproduce
@@ -25,25 +28,31 @@ Steps to reproduce the behavior:
 -->
 
 ### Expected behavior
+
 <!-- A clear and concise description of what you expected to happen. -->
 
 ### Screenshots
+
 <!-- If applicable, add screenshots to help explain your problem. -->
 
 ### Software
+
 <!-- Please complete the following information -->
 - Ruby version: <!-- by running: `ruby -v` -->
 - Gem version: <!-- by running: `gem -v`-->
 - Bundler version: <!-- by running: `bundle -v`-->
 - Jekyll version: <!-- by running: `bundle list | grep " jekyll "` -->
+- Theme version: <!-- by running: `gem list | grep jekyll-theme-chirpy` -->
 
 ### Desktop
+
 <!-- If necessary, uncomment and fill in the following list:
 - OS: [e.g. macOS 10.15.6]
 - Browser: [e.g. Chrome 85.0.4183.83 (64-bit)]
 -->
 
 ### Smartphone
+
 <!-- If necessary, uncomment and fill in the following list:
 - Device: [e.g. iPhone 6]
 - OS: [e.g. iOS 13.6.1]
@@ -51,4 +60,5 @@ Steps to reproduce the behavior:
 -->
 
 ### Additional context
+
 <!-- Add any other context about the problem here. -->

.github/ISSUE_TEMPLATE/feature_request.md

@@ -7,24 +7,29 @@ labels: enhancement
 <!-- NOTE: Please maintain all sections, otherwise the issue will be automatically closed :) -->
 
 ## Checklist
-<!-- Please complete the following list of tasks, and then check it by change the "[ ]" to "[x]" -->
+
+<!-- Please complete the following list of tasks, and then check it by changing the "[ ]" to "[x]" -->
 - [ ] I have read the [contributing guidelines](https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/.github/CONTRIBUTING.md).
-- [ ] There are no similar request on existing issues (including closed ones).
+- [ ] There is no similar request on [existing issues](https://github.com/cotes2020/jekyll-theme-chirpy/issues?q=is%3Aissue) (including closed ones).
 - [ ] I have read the [project progress](https://github.com/cotes2020/jekyll-theme-chirpy/projects) and know the current progress of the project.
 - [ ] I was in the `master` branch of the latest code.
 
 
 ## Is your feature request related to a problem? Please describe
+
 <!-- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] -->
 
 
 ## Describe the solution you'd like
+
 <!-- A clear and concise description of what you want to happen. -->
 
 
 ## Describe alternatives you've considered
+
 <!-- A clear and concise description of any alternative solutions or features you've considered. -->
 
 
 ## Additional context
+
 <!-- Add any other context or screenshots about the feature request here. -->

.github/ISSUE_TEMPLATE/question.md

@@ -1,6 +1,6 @@
 ---
 name: Question
-about: Ask what ever you want
+about: Ask whatever you want
 labels: question
 ---
 
@@ -8,12 +8,13 @@ labels: question
 
 ## Checklist
 
-<!-- Please complete the following list of tasks, and then check it by change the "[ ]" to "[x]" -->
+<!-- Please complete the following list of tasks, and then check it by changing the "[ ]" to "[x]" -->
 
-- [ ] I have read the [tutorials](https://chirpy.cotes.info/categories/tutorial/) and know the correct effect of the functional design.
-- [ ] There are no similar question on existing issues (including closed ones).
-- [ ] I searched the Internet for related problems, but still couldn't solve it.
-- [ ] My question is based on the latest code of `master` branch.
+- [ ] I have read the [newlest tutorials](https://cotes2020.github.io/chirpy-demo/categories/tutorial/) and know the correct effect of the functional design.
+- [ ] There is no similar question on [existing issues](https://github.com/cotes2020/jekyll-theme-chirpy/issues?q=is%3Aissue) (including closed ones).
+- [ ] I have tried to find the answer on [Jekyll Forum](https://talk.jekyllrb.com/) and [StackOverflow](https://stackoverflow.com/questions/tagged/jekyll).
+- [ ] My question is based on the latest code of the `master` branch.
 
 ## Description
+
 <!-- Please describe your question in detail. -->

.github/PULL_REQUEST_TEMPLATE.md

@@ -2,9 +2,9 @@
 
 <!-- 
 Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.
--->
 
 e.g. Fixes #(issue)
+-->
 
 ## Type of change
 
@@ -22,23 +22,21 @@ Please select the desired item checkbox and change it to "[x]", then delete opti
 Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration
 -->
 
-- [ ] I have run `bash ./tools/test.sh --build` (at the root of the project) locally and passed
+- [ ] I have run `bash ./tools/deploy.sh --dry-run` (at the root of the project) locally and passed
 - [ ] I have tested this feature in the browser
 
 ### Test Configuration
 
 - Browser type & version:
 - Operating system:
-- Bundler version:
-- Ruby version:
-- Jekyll version:
+- Ruby version: <!-- by running: `ruby -v` -->
+- Bundler version: <!-- by running: `bundle -v`-->
+- Jekyll version: <!-- by running: `bundle list | grep " jekyll "` -->
 
 ### Checklist
+
 <!-- Select checkboxes by change the "[ ]" to "[x]" -->
-- [ ] My code follows the [Google style guidelines](https://google.github.io/styleguide/)
-- [ ] I have performed a self-review of my own code
-- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have performed a self-review of my code
+- [ ] I have commented on my code, particularly in hard-to-understand areas
 - [ ] I have made corresponding changes to the documentation
 - [ ] My changes generate no new warnings
-- [ ] I have added tests that prove my fix is effective or that my feature works
-- [ ] Any dependent changes have been merged and published in downstream modules

.github/workflows/ci.yml

@@ -2,15 +2,15 @@ name: 'Continuous Integration'
 on:
   push:
     branches-ignore:
-      - 'production'
+      - 'release/**'
+      - 'docs'
     tags-ignore:
-      - '*'
+      - '**'
     paths-ignore:
       - '.github/**'
       - '!.github/workflows/ci.yml'
       - '.travis.yml'
       - '.gitignore'
-      - 'docs/**'
       - 'README.md'
       - 'LICENSE'
   pull_request:
@@ -36,12 +36,5 @@ jobs:
           ruby-version: 2.7
           bundler-cache: true
 
-      - name: Build Site
-        env:
-          JEKYLL_ENV: production
-        run: |
-          bundle exec jekyll b
-
       - name: Test Site
-        run: |
-          bash tools/test.sh
+        run: bash tools/deploy.sh --dry-run

.github/workflows/pages-deploy.yml.hook

@@ -2,7 +2,7 @@ name: 'Automatic build'
 on:
   push:
     branches:
-      - master
+      - main
     paths-ignore:
       - .gitignore
       - README.md
@@ -25,29 +25,5 @@ jobs:
           ruby-version: 2.7
           bundler-cache: true
 
-      - name: Check baseurl
-        run: |
-          baseurl="$(grep '^baseurl:' _config.yml | sed "s/.*: *//;s/['\"]//g;s/#.*//")"
-          if [[ -n $baseurl ]]; then
-            echo "BASE_URL=$baseurl" >> $GITHUB_ENV
-          fi
-
-      - name: Build Site
-        env:
-          JEKYLL_ENV: production
-        run: |
-          bundle exec jekyll b -d "_site$BASE_URL"
-
-      - name: Test Site
-        run: |
-          bash tools/test.sh
-
       - name: Deploy
-        run: |
-          if [[ -n $BASE_URL ]]; then
-            mv _site$BASE_URL _site-rename
-            rm -rf _site
-            mv _site-rename _site
-          fi
-
-          bash tools/deploy.sh
+        run: bash tools/deploy.sh

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "assets/lib"]
+	path = assets/lib
+	url = https://github.com/cotes2020/chirpy-static-assets.git

.nojekyll

@@ -0,0 +1 @@
+

.travis.yml

@@ -1,40 +1,41 @@
 os: linux
 dist: bionic
+language: ruby
+rvm: 2.7.0
 
-language: minimal
+addons:
+  apt:
+    packages:
+      - libcurl4-openssl-dev  # to avoid SSL error (for htmlproofer)
 
-if: tag =~ /^v(\d)+(\.(\d)+){2}$/
+# Overriding to drop the `--development` flag which requires the Gemfile.lock at build
+install: bundle install --jobs=3 --retry=3 --path=vendor/bundle
+
+before_script: git -C "$HOME" clone "$BUILDER_REPO" --depth=1 -q
 
 jobs:
   include:
-    - name: Deploy
-      language: ruby
-      rvm: 2.7.0
-      addons:
-        apt:
-          packages:
-            # required to avoid SSL error (for htmlproofer)
-            - libcurl4-openssl-dev
-      cache:
-        directories:
-          - $TRAVIS_BUILD_DIR/vendor/bundle
-      before_install:
-        # match the Gemfile.lock, travis' bundler is 2.1.2
-        - gem install bundler:2.2.4
-        - bundle config path 'vendor/bundle'
-      install:
-        # overriding to drop the travis `--development` flag
-        - bundle install --jobs=3 --retry=3
-      script:
-        - eval "$BUILD_CMD"
+    - stage: Upgrade
       git:
-        depth: false # for posts' lastmod
-
-    - name: Flush Starter
+        depth: false  # for posts' lastmod
+      script: eval "$BUILD_CMD"
+    - stage: Starter
+      language: minimal
+      install: true   # skip install step
       script: eval "$FLUSH_STARTER"
+    - stage: Docs
+      cache: bundler
+      git:
+        depth: false  # for posts' lastmod
+      script: eval "$DOCS_CMD"
 
-before_script:
-  - git -C "$HOME" clone "$BUILDER_REPO" --depth=1 -q
+stages:
+  - name: Upgrade
+    if: branch =~ /^v(\d)+(\.(\d)+){2}$/ OR tag IS present
+  - name: Starter
+    if: branch =~ /^v(\d)+(\.(\d)+){2}$/ OR tag IS present
+  - name: Docs
+    if: branch = docs
 
 notifications:
   email:

Gemfile

@@ -17,3 +17,6 @@ end
 
 # Performance-booster for watching directories on Windows
 gem "wdm", "~> 0.1.1", :install_if => Gem.win_platform?
+
+# Jekyll <= 4.2.0 compatibility with Ruby 3.0
+gem "webrick", "~> 1.7"

README.md

@@ -1,238 +1,97 @@
-<div align="right">
-  <a href="https://github.com/cotes2020/jekyll-theme-chirpy#readme">EN</a> |
-  <a href="https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/docs/README.zh-CN.md">中文 (简体)</a>
-</div>
-
 <div align="center">
-  <h1>Chirpy Jekyll Theme</h1>
-  <p>
-    <a href="https://rubygems.org/gems/jekyll-theme-chirpy">
-    <img alt="Gem Version" src="https://img.shields.io/gem/v/jekyll-theme-chirpy?color=brightgreen"></img>
-  </a>
-    <a href="https://github.com/cotes2020/jekyll-theme-chirpy/actions?query=branch%3Amaster+event%3Apush">
-    <img alt="Build Status" src="https://github.com/cotes2020/jekyll-theme-chirpy/workflows/build/badge.svg?branch=master&event=push"></img>
-  </a>
-    <a href="https://app.codacy.com/manual/cotes2020/jekyll-theme-chirpy?utm_source=github.com&utm_medium=referral&utm_content=cotes2020/jekyll-theme-chirpy&utm_campaign=Badge_Grade_Dashboard">
-    <img alt="Codacy Badge" src="https://api.codacy.com/project/badge/Grade/8220b926db514f13afc3f02b7f884f4b"></img>
-  </a>
-    <a href="https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/LICENSE">
-    <img alt="GitHub license" src="https://img.shields.io/github/license/cotes2020/jekyll-theme-chirpy.svg"></img>
-  </a>
-    <a href="https://996.icu">
-    <img alt="996.icu" src="https://img.shields.io/badge/link-996.icu-%23FF4D5B.svg"></img>
-  </a>
-  </p>
+
+  # Chirpy Jekyll Theme
+
+  A minimal, responsive, and powerful Jekyll theme for presenting professional writing.
+
+  [![Gem Version](https://img.shields.io/gem/v/jekyll-theme-chirpy?color=brightgreen)](https://rubygems.org/gems/jekyll-theme-chirpy)
+  [![Build Status](https://github.com/cotes2020/jekyll-theme-chirpy/workflows/build/badge.svg?branch=master&event=push)](https://github.com/cotes2020/jekyll-theme-chirpy/actions?query=branch%3Amaster+event%3Apush)
+  [![Codacy Badge](https://app.codacy.com/project/badge/Grade/4e556876a3c54d5e8f2d2857c4f43894)](https://www.codacy.com/gh/cotes2020/jekyll-theme-chirpy/dashboard?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=cotes2020/jekyll-theme-chirpy&amp;utm_campaign=Badge_Grade)
+  [![GitHub license](https://img.shields.io/github/license/cotes2020/jekyll-theme-chirpy.svg)](https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/LICENSE)
+  [![996.icu](https://img.shields.io/badge/link-996.icu-%23FF4D5B.svg)](https://996.icu)
+
+  [**Live Demo →**](https://cotes2020.github.io/chirpy-demo)
+
+  [![Devices Mockup](https://raw.githubusercontent.com/cotes2020/chirpy-images/main/commons/devices-mockup.png)](https://cotes2020.github.io/chirpy-demo)
+
 </div>
 
-A minimal, sidebar, responsive web design Jekyll theme that focuses on text presentation. Designed to help you easily record and share your knowledge.
-
-[Live Demo »](https://chirpy.cotes.info)
-
-<p align="center">
-  <a href="https://chirpy.cotes.info">
-    <img alt="Devices Mockup" src="https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/commons/devices-mockup.png"></img>
-  </a>
-</p>
-
 ## Features
 
 - Localized Layout
-- Configurable Theme Mode
+- Dark/Light Theme Mode
 - Pinned Posts
 - Hierarchical Categories
 - Last Modified Date for Posts
 - Table of Contents
-- Automatically Recommend Related Posts
+- Auto-generated Related Posts
 - Syntax Highlighting
 - Mathematical Expressions
 - Mermaid Diagram & Flowchart
+- Disqus/Utterances/Giscus Comments
 - Search
 - Atom Feeds
-- Disqus Comments
 - Google Analytics
-- GA Pageviews Reporting (Advanced)
+- GA Pageviews Reporting
 - SEO & Performance Optimization
 
-## Prerequisites
 
-Follow the [Jekyll Docs](https://jekyllrb.com/docs/installation/) to complete the installation of `Ruby`, `RubyGems`, `Jekyll` and `Bundler`. Please note that the version of `Ruby` must meet the requirements of the theme on [RubyGems.org](https://rubygems.org/gems/jekyll-theme-chirpy).
+## Quick Start
 
-## Installation
+Before starting, please follow the instructions in the [Jekyll Docs](https://jekyllrb.com/docs/installation/) to complete the installation of `Ruby`, `RubyGems`, `Jekyll`, and `Bundler`. In addition, [Git](https://git-scm.com/) is also required to be installed.
 
-There are two ways to get the theme:
+### Step 1. Creating a New Site
 
-- **[Install from RubyGems](#install-from-rubygems)** - Easy to update, isolate irrelevant project files so you can focus on writing.
-- **[Fork on GitHub](#fork-on-github)** - Convenient for custom development, but difficult to update, only suitable for web developers.
+Create a new repository from the [**Chirpy Starter**](https://github.com/cotes2020/chirpy-starter/generate) and name it `<GH_USERNAME>.github.io`, where `GH_USERNAME` represents your GitHub username.
 
-### Install from RubyGems
+### Step 2. Installing Dependencies
 
-Add this line to your Jekyll site's `Gemfile`:
-
-```ruby
-gem "jekyll-theme-chirpy"
-```
-
-And add this line to your Jekyll site's `_config.yml`:
-
-```yaml
-theme: jekyll-theme-chirpy
-```
-
-And then execute:
+Before running for the first time, go to the root directory of your site, and install dependencies as follows:
 
 ```console
 $ bundle
 ```
 
-Next, go to the installed local theme path:
+### Step 3. Running Local Server
 
-```console
-$ cd "$(bundle info --path jekyll-theme-chirpy)"
-```
-
-And then copy the critical files (for details, see [starter project][starter]) from the theme's gem to your Jekyll site.
-
-> ⚠️ **Watch out for duplicate files!**
->
-> If your Jekyll site is created by the `jekyll new` command, there will be `index.markdown` and `about.markdown` in the root directory of your site. Please be sure to remove them, otherwise they will overwrite the `index.html` and `_tabs/about.html` from this project, resulting in blank or messy pages.
-
-As an alternative, which we recommend, you can create a Jekyll site [**using the starter template**][use-starter] to save time copying files from the theme's gem. We've prepared everything you need there!
-
-### Fork on GitHub
-
-[Fork **Chirpy**](https://github.com/cotes2020/jekyll-theme-chirpy/fork) on GitHub and then clone your fork to local. (Please note that the default branch code is in development.  If you want the blog to be stable, please switch to the [latest tag](https://github.com/cotes2020/jekyll-theme-chirpy/tags) and start writing.)
-
-Install gem dependencies by:
-
-```console
-$ bundle
-```
-
-And then execute:
-
-```console
-$ bash tools/init.sh
-```
-
-> **Note**: If you don't plan to deploy your site on GitHub Pages, append parameter option `--no-gh` at the end of the above command.
-
-What it does is:
-
-1. Remove some files or directories from your repository:
-    - `.travis.yml`
-    - files under `_posts`
-    - folder `docs`
-
-2. If you use the `--no-gh` option, the directory `.github` will be deleted. Otherwise, setup the GitHub Action workflow by removing the extension `.hook` of `.github/workflows/pages-deploy.yml.hook`, and then remove the other files and directories in the folder `.github`.
-
-3. Automatically create a commit to save the changes.
-
-## Usage
-
-### Configuration
-
-Update the variables of `_config.yml` as needed. Some of them are typical options:
-
-- `url`
-- `avatar`
-- `timezone`
-- `lang`
-
-### Customing Stylesheet
-
-If you need to customize stylesheet, copy the theme's `assets/css/style.scss` to the same path on your Jekyll site, and then add the custom style at the end of the style file.
-
-Starting from `v4.1.0`, if you want to overwrite the SASS variables defined in `_sass/addon/variables.scss`, create a new file `_sass/variables-hook.scss` and assign new values to the target variable in it.
-
-### Running Local Server
-
-You may want to preview the site contents before publishing, so just run it by:
+Run the following command in the root directory of the site:
 
 ```console
 $ bundle exec jekyll s
 ```
 
-Or run the site on Docker with the following command:
+Or run with Docker:
 
-```terminal
+```console
 $ docker run -it --rm \
     --volume="$PWD:/srv/jekyll" \
     -p 4000:4000 jekyll/jekyll \
     jekyll serve
 ```
 
-Open a browser and visit to _<http://localhost:4000>_.
-
-### Deployment
-
-Before the deployment begins, checkout the file `_config.yml` and make sure the `url` is configured correctly. Furthermore, if you prefer the [**project site**](https://help.github.com/en/github/working-with-github-pages/about-github-pages#types-of-github-pages-sites) and don't use a custom domain, or you want to visit your website with a base URL on a web server other than **GitHub Pages**, remember to change the `baseurl` to your project name that starting with a slash, e.g, `/project-name`.
-
-Now you can choose ONE of the following methods to deploy your Jekyll site.
-
-#### Deploy on GitHub Pages
-
-For security reasons, GitHub Pages build runs on `safe` mode, which restricts us from using plugins to generate additional page files. Therefore, we can use **GitHub Actions** to build the site, store the built site files on a new branch, and use that branch as the source of the GH Pages service.
-
-Quickly check the files needed for GitHub Actions build:
-
-- Ensure your Jekyll site has the file `.github/workflows/pages-deploy.yml`. Otherwise, create a new one and fill in the contents of the [workflow file][workflow], and the value of the `on.push.branches` should be the same as your repo's default branch name.
-- Ensure your Jekyll site has file `tools/test.sh` and `tools/deploy.sh`. Otherwise, copy them from this repo to your Jekyll site.
-
-And then rename your repository to `<GH-USERNAME>.github.io` on GitHub.
-
-Now publish your Jekyll site by:
-
-1. Push any commit to remote to trigger the GitHub Actions workflow. Once the build is complete and successful, a new remote branch named `gh-pages` will appear to store the built site files.
-
-2. Browse to your repo's landing page on GitHub and select the branch `gh-pages` as the [publishing source](https://docs.github.com/en/github/working-with-github-pages/configuring-a-publishing-source-for-your-github-pages-site) through _Settings_ → _Options_ → _GitHub Pages_:
-
-    ![gh-pages-sources](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190809/gh-pages-sources.png)
-
-3. Visit your website at the address indicated by GitHub.
-
-#### Deploy on Other Platforms
-
-On platforms other than GitHub, we cannot enjoy the convenience of **GitHub Actions**. Therefore, we should build the site locally (or on some other 3rd-party CI platform) and then put the site files on the server.
-
-Go to the root of the source project, build your site by:
-
-```console
-$ JEKYLL_ENV=production bundle exec jekyll b
-```
-
-Or build the site with Docker by:
-
-```terminal
-$ docker run -it --rm \
-    --env JEKYLL_ENV=production \
-    --volume="$PWD:/srv/jekyll" \
-    jekyll/jekyll \
-    jekyll build
-```
-
-Unless you specified the output path, the generated site files will be placed in folder `_site` of the project's root directory. Now you should upload those files to your web server.
+After a while, navigate to the site at <http://localhost:4000>.
 
 ## Documentation
 
-For more details and a better reading experience, please check out the [tutorials on the demo site](https://chirpy.cotes.info/categories/tutorial/). In the meanwhile, a copy of the tutorial is also available on the [Wiki](https://github.com/cotes2020/jekyll-theme-chirpy/wiki). Please note that the tutorials on the demo website or Wiki are based on the latest release, and the features of `master` branch usually ahead of the documentation.
+For more details on usage, please refer to the tutorial on the [demo website](https://cotes2020.github.io/chirpy-demo/) / [wiki](https://github.com/cotes2020/jekyll-theme-chirpy/wiki). Note that the tutorial is based on the [latest tag](https://github.com/cotes2020/jekyll-theme-chirpy/tags), and the features of the default branch are usually ahead of the documentation.
 
 ## Contributing
 
-The old saying, "Two heads are better than one." Consequently, welcome to report bugs, improve code quality or submit a new feature. For more information, see [contributing guidelines](.github/CONTRIBUTING.md).
+Welcome to report bugs, improve code quality or submit a new feature. For more information, see [contributing guidelines](.github/CONTRIBUTING.md).
 
 ## Credits
 
-This theme is mainly built with [Jekyll](https://jekyllrb.com/) ecosystem, [Bootstrap](https://getbootstrap.com/), [Font Awesome](https://fontawesome.com/) and some other wonderful tools (their copyright information can be found in the relevant files). The avatar and favicon design comes from [Clipart Max](https://www.clipartmax.com/middle/m2i8b1m2K9Z5m2K9_ant-clipart-childrens-ant-cute/).
+This theme is mainly built with [Jekyll](https://jekyllrb.com/) ecosystem, [Bootstrap](https://getbootstrap.com/), [Font Awesome](https://fontawesome.com/) and some other wonderful tools (their copyright information can be found in the relevant files). The avatar and favicon design come from [Clipart Max](https://www.clipartmax.com/middle/m2i8b1m2K9Z5m2K9_ant-clipart-childrens-ant-cute/).
 
 :tada: Thanks to all the volunteers who contributed to this project, their GitHub IDs are on [this list](https://github.com/cotes2020/jekyll-theme-chirpy/graphs/contributors). Also, I won't forget those guys who submitted the issues or unmerged PR because they reported bugs, shared ideas, or inspired me to write more readable documentation.
 
-Last but not least, thank [JetBrains][jb] for providing the open source license.
+Last but not least, thank [JetBrains][jb] for providing the OSS development license.
 
 ## Sponsoring
 
 If you like this theme or find it helpful, please consider sponsoring me, because it will encourage and help me better maintain the project, I will be very grateful!
 
-[![Buy Me a Coffee](https://img.shields.io/badge/-Buy%20Me%20a%20Coffee-ff813f?logo=buy-me-a-coffee&logoColor=white)](https://www.buymeacoffee.com/coteschung)
+[![Ko-fi](https://img.shields.io/badge/-Buy%20Me%20a%20Coffee-ff5f5f?logo=ko-fi&logoColor=white)](https://ko-fi.com/coteschung)
 [![Wechat Pay](https://img.shields.io/badge/-Tip%20Me%20on%20WeChat-brightgreen?logo=wechat&logoColor=white)][cn-donation]
 [![Alipay](https://img.shields.io/badge/-Tip%20Me%20on%20Alipay-blue?logo=alipay&logoColor=white)][cn-donation]
 
@@ -240,10 +99,6 @@ If you like this theme or find it helpful, please consider sponsoring me, becaus
 
 This work is published under [MIT](https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/LICENSE) License.
 
-[starter]: https://github.com/cotes2020/chirpy-starter
-[use-starter]: https://github.com/cotes2020/chirpy-starter/generate
-[workflow]: https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/.github/workflows/pages-deploy.yml.hook
-
 <!-- ReadMe links -->
 
 [jb]: https://www.jetbrains.com/?from=jekyll-theme-chirpy

_config.yml

@@ -3,8 +3,8 @@
 # Import the theme
 theme: jekyll-theme-chirpy
 
-# Only if your site type is GitHub Project sites and doesn't have a custom domain,
-# change below value to '/projectname'.
+# Change the following value to '/PROJECT_NAME' ONLY IF your site type is GitHub Pages Project sites
+# and doesn't have a custom domain.
 baseurl: ''
 
 # The language of the webpage › http://www.lingoes.net/en/translator/langcode.htm
@@ -12,6 +12,9 @@ baseurl: ''
 # otherwise, the layout language will use the default value of 'en'.
 lang: en
 
+# Additional parameters for datetime localization, optional. › https://github.com/iamkun/dayjs/tree/dev/src/locale
+prefer_datetime_locale:
+
 # Change to your timezone › http://www.timezoneconverter.com/cgi-bin/findzone/findzone
 timezone: Asia/Shanghai
 
@@ -23,9 +26,7 @@ title: Chirpy                          # the main title
 tagline: A text-focused Jekyll theme   # it will display as the sub-title
 
 description: >-                        # used by seo meta and the atom feed
-  A minimal, portfolio, sidebar,
-  bootstrap Jekyll theme with responsive web design
-  and focuses on text presentation.
+  A minimal, responsive, and powerful Jekyll theme for presenting professional writing.
 
 # fill in the protocol & hostname for your site, e.g., 'https://username.github.io'
 url: ''
@@ -49,13 +50,13 @@ social:
     # - https://www.facebook.com/username
     # - https://www.linkedin.com/in/username
 
-google_site_verification: google_meta_tag_verification # change to your verification string
+google_site_verification:               # fill in to your verification string
 
 # ↑ --------------------------
-
+# The end of `jekyll-seo-tag` settings
 
 google_analytics:
-  id: ''              # fill in your Google Analytics ID
+  id:                 # fill in your Google Analytics ID
   # Google Analytics pageviews report settings
   pv:
     proxy_endpoint:   # fill in the Google Analytics superProxy endpoint of Google App Engine
@@ -79,17 +80,40 @@ theme_mode:   # [light|dark]
 # will be added to all image (site avatar & posts' images) paths starting with '/'
 #
 # e.g. 'https://cdn.com'
-img_cdn: ''
+img_cdn: 'https://raw.githubusercontent.com/cotes2020/chirpy-images/main'
 
 # the avatar on sidebar, support local or CORS resources
-avatar: https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/commons/avatar.jpg
+avatar: '/commons/avatar.jpg'
 
 # boolean type, the global switch for ToC in posts.
 toc: true
 
-disqus:
-  comments: false  # boolean type, the global switch for posts comments.
-  shortname: ''    # Fill with your Disqus shortname. › https://help.disqus.com/en/articles/1717111-what-s-a-shortname
+comments:
+  active:         # The global switch for posts comments, e.g., 'disqus'.  Keep it empty means disable
+  # The active options are as follows:
+  disqus:
+    shortname:    # fill with the Disqus shortname. › https://help.disqus.com/en/articles/1717111-what-s-a-shortname
+  # utterances settings › https://utteranc.es/
+  utterances:
+    repo:         # <gh-username>/<repo>
+    issue_term:   # < url | pathname | title | ...>
+  # Giscus options › https://giscus.app
+  giscus:
+    repo:             # <gh-username>/<repo>
+    repo_id:
+    category:
+    category_id:
+    mapping:          # optional, default to 'pathname'
+    input_position:   # optional, default to 'bottom'
+    lang:             # optional, default to the value of `site.lang`
+
+# Self-hosted static assets, optional › https://github.com/cotes2020/chirpy-static-assets
+assets:
+  self_host:
+    enabled:      # boolean, keep empty means false
+    # specify the Jekyll environment, empty means both
+    # only works if `assets.self_host.enabled` is 'true'
+    env:          # [development|production]
 
 paginate: 10
 
@@ -111,10 +135,8 @@ collections:
     output: true
     sort_by: order
 
-
 defaults:
-  -
-    scope:
+  - scope:
       path: ''          # An empty string here means all files in the project
       type: posts
     values:
@@ -124,19 +146,24 @@ defaults:
       # DO NOT modify the following parameter unless you are confident enough
       # to update the code of all other post links in this project.
       permalink: /posts/:title/
-  -
-    scope:
+  - scope:
       path: _drafts
     values:
       comments: false
-  -
-    scope:
+  - scope:
       path: ''
       type: tabs             # see `site.collections`
     values:
       layout: page
       permalink: /:title/
-      dynamic_title: true    # Hide title in mobile screens.
+  - scope:
+      path: assets/img/favicons
+    values:
+      swcache: true
+  - scope:
+      path: assets/js/dist
+    values:
+      swcache: true
 
 sass:
   style: compressed
@@ -154,12 +181,11 @@ exclude:
   - '*.gem'
   - '*.gemspec'
   - tools
-  - docs
   - README.md
   - LICENSE
   - gulpfile.js
   - node_modules
-  - '*.json'
+  - package*.json
 
 jekyll-archives:
   enabled: [categories, tags]

_data/assets/cross_origin.yml

@@ -0,0 +1,62 @@
+# CDNs
+
+cdns:
+  # Google Fonts
+  - url: https://fonts.googleapis.com
+  - url: https://fonts.gstatic.com
+    args: crossorigin
+  - url: https://fonts.googleapis.com
+  # jsDelivr CDN
+  - url: https://cdn.jsdelivr.net
+
+# fonts
+
+webfonts: https://fonts.googleapis.com/css2?family=Lato&family=Source+Sans+Pro:wght@400;600;700;900&display=swap
+
+# Libraries
+
+jquery:
+  js: https://cdn.jsdelivr.net/npm/jquery@3/dist/jquery.min.js
+
+bootstrap:
+  css: https://cdn.jsdelivr.net/npm/bootstrap@4/dist/css/bootstrap.min.css
+  js: https://cdn.jsdelivr.net/npm/bootstrap@4/dist/js/bootstrap.bundle.min.js
+
+bootstrap-toc:
+  css: https://cdn.jsdelivr.net/gh/afeld/bootstrap-toc@1.0.1/dist/bootstrap-toc.min.css
+  js: https://cdn.jsdelivr.net/gh/afeld/bootstrap-toc@1.0.1/dist/bootstrap-toc.min.js
+
+fontawesome:
+  css: https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@5.11.2/css/all.min.css
+
+search:
+  js: https://cdn.jsdelivr.net/npm/simple-jekyll-search@1.10.0/dest/simple-jekyll-search.min.js
+
+mermaid:
+  js: https://cdn.jsdelivr.net/npm/mermaid@8/dist/mermaid.min.js
+
+dayjs:
+  js:
+    common: https://cdn.jsdelivr.net/npm/dayjs@1/dayjs.min.js
+    locale: https://cdn.jsdelivr.net/npm/dayjs@1/locale/:LOCALE.min.js
+    relativeTime: https://cdn.jsdelivr.net/npm/dayjs@1/plugin/relativeTime.min.js
+    localizedFormat: https://cdn.jsdelivr.net/npm/dayjs@1/plugin/localizedFormat.min.js
+
+countup:
+  js: https://cdn.jsdelivr.net/npm/countup.js@1.9.3/dist/countUp.min.js
+
+magnific-popup:
+  css: https://cdn.jsdelivr.net/npm/magnific-popup@1/dist/magnific-popup.min.css
+  js: https://cdn.jsdelivr.net/npm/magnific-popup@1/dist/jquery.magnific-popup.min.js
+
+lozad:
+  js: https://cdn.jsdelivr.net/npm/lozad/dist/lozad.min.js
+
+clipboard:
+  js:  https://cdn.jsdelivr.net/npm/clipboard@2/dist/clipboard.min.js
+
+polyfill:
+  js: https://polyfill.io/v3/polyfill.min.js?features=es6
+
+mathjax:
+  js: https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-chtml.js

_data/assets/self_host.yml

@@ -0,0 +1,51 @@
+# fonts
+
+webfonts: /assets/lib/fonts/main.css
+
+# Libraries
+
+jquery:
+  js: /assets/lib/jquery-3.6.0/jquery.min.js
+
+bootstrap:
+  css: /assets/lib/bootstrap-4.6.1/bootstrap.min.css
+  js: /assets/lib/bootstrap-4.6.1/bootstrap.bundle.min.js
+
+bootstrap-toc:
+  css: /assets/lib/bootstrap-toc-1.0.1/bootstrap-toc.min.css
+  js: /assets/lib/bootstrap-toc-1.0.1/bootstrap-toc.min.js
+
+fontawesome:
+  css: /assets/lib/fontawesome-free-5.15.4/css/all.min.css
+
+search:
+  js: /assets/lib/simple-jekyll-search-1.10.0/simple-jekyll-search.min.js
+
+mermaid:
+  js: /assets/lib/mermaid-8.13.10/mermaid.min.js
+
+dayjs:
+  js:
+    common: /assets/lib/dayjs-1.10.7/dayjs.min.js
+    locale: /assets/lib/dayjs-1.10.7/locale/en.min.js
+    relativeTime: /assets/lib/dayjs-1.10.7/plugin/relativeTime.min.js
+    localizedFormat: /assets/lib/dayjs-1.10.7/plugin/localizedFormat.min.js
+
+countup:
+  js: /assets/lib/countup.js-1.9.3/countUp.min.js
+
+magnific-popup:
+  css: /assets/lib/magnific-popup-1.1.0/magnific-popup.css
+  js: /assets/lib/magnific-popup-1.1.0/jquery.magnific-popup.min.js
+
+lozad:
+  js: /assets/lib/lozad-1.16.0/lozad.min.js
+
+clipboard:
+  js: /assets/lib/clipboard-2.0.9/clipboard.min.js
+
+polyfill:
+  js: /assets/lib/polyfill-v3-es6/polyfill.min.js
+
+mathjax:
+  js: /assets/lib/mathjax-3.2.0/tex-chtml.js

_data/contact.yml

@@ -2,7 +2,7 @@
 
 -
   type: github
-  icon: 'fab fa-github-alt'
+  icon: 'fab fa-github'
 -
   type: twitter
   icon: 'fab fa-twitter'

_data/locales/en.yml

@@ -23,18 +23,10 @@ search:
   no_results: Oops! No result founds.
 
 panel:
-  lastmod: Recent Update
+  lastmod: Recently Updated
   trending_tags: Trending Tags
   toc: Contents
 
-#  The liquid date format › http://strftime.net/
-date_format:
-  tooltip: '%a, %b %e, %Y, %l:%M %p %z'
-  post:
-    long: '%b %e, %Y'
-    short: '%b %e'
-    archive_month: '%b'
-
 copyright:
   # Shown at the bottom of the post
   license:
@@ -59,13 +51,9 @@ not_found:
 # ----- Posts related labels -----
 
 post:
-  published: 'on'
+  written_by: By
+  posted: Posted
   updated: Updated
-  timeago:
-    day: days ago
-    hour: hours ago
-    minute: minutes ago
-    just_now: just now
   words: words
   pageview_measure: views
   read_time:
@@ -76,7 +64,11 @@ post:
   button:
     next: Newer
     previous: Older
-    copy: Copied!
+    copy_code:
+      succeed: Copied!
+    share_link:
+      title: Copy link
+      succeed: Link copied successfully!
   # pinned prompt of posts list on homepage
   pin_prompt: Pinned
 

_data/locales/id-ID.yml

@@ -27,14 +27,6 @@ panel:
   trending_tags: Tagar Terpopuler
   toc: Konten
 
-#  The liquid date format › http://strftime.net/
-date_format:
-  tooltip: "%a, %e %b, %Y, %l:%M %p"
-  post:
-    long: "%e %b, %Y"
-    short: "%e %b"
-    archive_month: "%b"
-
 copyright:
   # Shown at the bottom of the post
   license:
@@ -59,13 +51,9 @@ not_found:
 # ----- Posts related labels -----
 
 post:
-  published: "pada"
+  written_by: Oleh
+  posted: Diterbitkan
   updated: Diperbarui
-  timeago:
-    day: hari yang lalu
-    hour: jam yang lalu
-    minute: menit yang lalu
-    just_now: baru saja
   words: kata
   pageview_measure: dilihat
   read_time:
@@ -76,7 +64,11 @@ post:
   button:
     next: Terbaru
     previous: Terlama
-    copy: Disalin!
+    copy_code:
+      succeed: Disalin!
+    share_link:
+      title: Salin tautan
+      succeed: Tautan berhasil disalin!
   # pinned prompt of posts list on homepage
   pin_prompt: Disematkan
 

_data/locales/ko-KR.yml

@@ -0,0 +1,78 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: 포스트
+  category: 카테고리
+  tag: 태그
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: 홈
+  categories: 카테고리
+  tags: 태그
+  archives: 아카이브
+  about: 정보
+
+# the text displayed in the search bar & search results
+search:
+  hint: 검색
+  cancel: 취소
+  no_results: 검색 결과가 없습니다.
+
+panel:
+  lastmod: 최근 업데이트
+  trending_tags: 인기 태그
+  toc: 바로가기
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: 이 기사는 저작권자의 :LICENSE_NAME 라이센스를 따릅니다.
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: 일부 권리 보유
+  verbose: >-
+    명시되지 않는 한 이 사이트의 블로그 게시물은 작성자의
+    Creative Commons Attribution 4.0 International(CC BY 4.0) 라이선스에 따라 사용이 허가되었습니다.
+
+meta: Powered by :PLATFORM with :THEME theme.
+
+not_found:
+  statment: 해당 URL은 존재하지 않습니다.
+  hint_template: :HEAD_BAK을 눌러 다시 찾거나 :ARCHIVES_PAGE에서 검색해 주세요.
+  head_back: 홈으로 돌아가기
+  archives_page: 아카이브 페이지
+
+# ----- Posts related labels -----
+
+post:
+  written_by: By
+  posted: 게시
+  updated: 업데이트
+  words: 단어
+  pageview_measure: 조회
+  read_time:
+    unit: 분
+    prompt: 읽는 시간
+  relate_posts: 관련된 글
+  share: 공유하기
+  button:
+    next: 다음 글
+    previous: 이전 글
+    copy_code:
+      succeed: 복사되었습니다!
+    share_link:
+      title: 링크 복사하기
+      succeed: 링크가 복사되었습니다!
+  # pinned prompt of posts list on homepage
+  pin_prompt: 핀
+
+# categories page
+categories:
+  category_measure: 카테고리
+  post_measure: 포스트

_data/locales/my-MM.yml

@@ -0,0 +1,78 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: ပို့စ်
+  category: ကဏ္ဍ
+  tag: နာမ(တက်ဂ်)
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: အဓိကစာမျက်နှာ
+  categories: ကဏ္ဍများ
+  tags: နာမ(တက်ဂ်)များ
+  archives: မှတ်တမ်း​တိုက်
+  about: အကြောင်းအရာ
+
+# the text displayed in the search bar & search results
+search:
+  hint: ရှာဖွေမည်
+  cancel: ဖျက်သိမ်းမည်
+  no_results: အိုး! ဘာမှမရှိပါ
+
+panel:
+  lastmod: မကြာသေးမီကမွမ်းမံထားသည်
+  trending_tags: ခေတ်စားနေသည့်တက်ဂ်များ
+  toc: အကြောင်းအရာများ
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: ဤပို့စ်သည်စာရေးသူ၏ :LICENSE_NAME လိုင်စင်ရထားသည်။
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: မူပိုင်ခွင့်အချို့ကို လက်ဝယ်ထားသည်။
+  verbose: >-
+    အခြားမှတ်သားထားချက်များမှလွဲ၍ ဤဆိုက်ရှိ ဘလော့ဂ်ပို့စ်များသည် စာရေးသူ၏
+    Creative Commons Attribution 4.0 International (CC BY 4.0) အောက်တွင် လိုင်စင်ရထားပါသည်။
+
+meta: Powered by :PLATFORM with :THEME theme.
+
+not_found:
+  statment: ဝမ်းနည်းပါသည်၊ ကျွန်ုပ်တို့သည် အဆိုပါ URL ကို မှားယွင်းစွာ နေရာချထားခြင်း သို့မဟုတ် ၎င်းသည် မရှိသောအရာကို ညွှန်ပြနေပါသည်။
+  hint_template: ၎င်းကို ထပ်မံရှာဖွေရန် :HEAD_BAK , သို့မဟုတ် :ARCHIVES_PAGE တွင်ရှာပါ။
+  head_back: အဓိကစာမျက်နှာသို့ပြန်သွားပါ။
+  archives_page: မှတ်တမ်း​တိုက် စာမျက်နှာ။
+
+# ----- Posts related labels -----
+
+post:
+  written_by: ကရေးသားခဲ့သည်။
+  posted: တင်ထားခဲ့သည်။
+  updated: မွမ်းမံထားခဲ့သည်။
+  words: စကားလုံးများ
+  pageview_measure: အမြင်များ
+  read_time:
+    unit: မိနစ်
+    prompt: ဖတ်ပါမည်
+  relate_posts: နောက်ထပ်ဖတ်ရန်
+  share: မျှဝေရန်
+  button:
+    next: အသစ်များ
+    previous: အဟောင်းများ
+    copy_code:
+      succeed: ကူးယူလိုက်ပြီ။
+    share_link:
+      title: လင့်ခ်ကို ကူးယူရန်
+      succeed: လင့်ခ်ကို ကူးယူလိုက်ပြီ။
+  # pinned prompt of posts list on homepage
+  pin_prompt: ချိတ်ထားသည်။
+
+# categories page
+categories:
+  category_measure: ကဏ္ဍများ
+  post_measure: ပို့စ်များ

_data/locales/ru-RU.yml

@@ -0,0 +1,78 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: Публикация
+  category: Категория
+  tag: Тег
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: Домашняя страница
+  categories: Категории
+  tags: Теги
+  archives: Архив
+  about: О сайте
+
+# the text displayed in the search bar & search results
+search:
+  hint: поиск
+  cancel: Отменить
+  no_results: Ох! Ничего не найдено.
+
+panel:
+  lastmod: Недавно обновлено
+  trending_tags: Популярные теги
+  toc: Содержание
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: Публикация защищена лицензией :LICENSE_NAME.
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: Некоторые права защищены.
+  verbose: >-
+    Публикации на сайте защищены лицензией Creative Commons Attribution 4.0 International (CC BY 4.0),
+    если в тексте публикации не указано иное.
+
+meta: Powered by :PLATFORM with :THEME theme.
+
+not_found:
+  statment: Извините, эта ссылка указывает на ресурс который не существует.
+  hint_template: :HEAD_BAK чтобы снова осуществить поиск, или поищите :ARCHIVES_PAGE.
+  head_back: Вернитесь на домашнюю страницу
+  archives_page: архиве
+
+# ----- Posts related labels -----
+
+post:
+  written_by: Автор
+  posted: Время публикации
+  updated: Обновлено
+  words: слов
+  pageview_measure: просмотров
+  read_time:
+    unit: минут
+    prompt: чтения
+  relate_posts: Вам также может быть интересно
+  share: Поделиться
+  button:
+    next: Предыдущая публикация
+    previous: Следующая публикация
+    copy_code:
+      succeed: Скопировано успешно!
+    share_link:
+      title: Скопировать ссылку
+      succeed: Ссылка успешно скопирована!
+  # pinned prompt of posts list on homepage
+  pin_prompt: Закреплено
+
+# categories page
+categories:
+  category_measure: категории
+  post_measure: публикации

_data/locales/uk-UA.yml

@@ -0,0 +1,78 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: Публікація
+  category: Категорія
+  tag: Тег
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: Домашня сторінка
+  categories: Категорії
+  tags: Теги
+  archives: Архів
+  about: Про сайт
+
+# the text displayed in the search bar & search results
+search:
+  hint: пошук
+  cancel: Скасувати
+  no_results: Ох! Нічого не знайдено.
+
+panel:
+  lastmod: Нещодавно оновлено
+  trending_tags: Популярні теги
+  toc: Зміст
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: Публікація захищена ліцензією :LICENSE_NAME.
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: Деякі права захищено.
+  verbose: >-
+    Публікації на сайті захищено ліцензією Creative Commons Attribution 4.0 International (CC BY 4.0),
+    якщо інше не вказано в тексті.
+
+meta: Powered by :PLATFORM with :THEME theme.
+
+not_found:
+  statment: Вибачте, це посилання вказує на ресурс, що не існує.
+  hint_template: :HEAD_BAK аби здійснити пошук, або пошукайте в :ARCHIVES_PAGE.
+  head_back: Поверніться на домашню сторінку
+  archives_page: архіві
+
+# ----- Posts related labels -----
+
+post:
+  written_by: Автор
+  posted: Час публікації
+  updated: Оновлено
+  words: слів
+  pageview_measure: переглядів
+  read_time:
+    unit: хвилин
+    prompt: читання
+  relate_posts: Вас також може зацікавити
+  share: Поділитися
+  button:
+    next: Попередня публікація
+    previous: Наступна публікація
+    copy_code:
+      succeed: Успішно скопійовано!
+    share_link:
+      title: Скопіювати посилання
+      succeed: Посилання успішно скопійовано!
+  # pinned prompt of posts list on homepage
+  pin_prompt: Закріплено
+
+# categories page
+categories:
+  category_measure: категорії
+  post_measure: публікації

_data/locales/zh-CN.yml

@@ -27,14 +27,6 @@ panel:
   trending_tags: 热门标签
   toc: 文章内容
 
-#  The liquid date format › http://strftime.net/
-date_format:
-  tooltip: '%F, %R %z'
-  post:
-    long: '%F'
-    short: '%m-%d'
-    archive_month: '%m月'
-
 copyright:
   # Shown at the bottom of the post
   license:
@@ -58,13 +50,9 @@ not_found:
 # ----- Posts related labels -----
 
 post:
-  published: 发表于
+  written_by: 作者
+  posted: 发表于
   updated: 更新于
-  timeago:
-    day: 天前
-    hour: 小时前
-    minute: 分钟前
-    just_now: 刚刚
   words: 字
   pageview_measure: 次浏览
   read_time:
@@ -75,7 +63,11 @@ post:
   button:
     next: 下一篇
     previous: 上一篇
-    copy: 已复制！
+    copy_code:
+      succeed: 已复制！
+    share_link:
+      title:  分享链接
+      succeed: 链接已复制！
   # pinned prompt of posts list on homepage
   pin_prompt: 顶置
 

_data/share.yml

@@ -13,7 +13,7 @@ platforms:
   -
     type: Telegram
     icon: "fab fa-telegram"
-    link: "https://telegram.me/share?text=TITLE&url=URL"
+    link: "https://t.me/share/url?url=URL&text=TITLE"
 
   # Uncomment below if you need to.
   # -

_includes/assets-origin.html

@@ -0,0 +1,12 @@
+{% comment %} Site static assets origin {% endcomment %}
+{% assign origin = 'cross_origin' %}
+
+{% if site.assets.self_host.enabled %}
+  {% if site.assets.self_host.env %}
+    {% if site.assets.self_host.env == jekyll.environment %}
+      {% assign origin = 'self_host' %}
+    {% endif %}
+  {% else %}
+    {% assign origin = 'self_host' %}
+  {% endif %}
+{% endif %}

_includes/comments.html

@@ -0,0 +1,5 @@
+<!--  The comments switcher -->
+{% if page.comments and site.comments.active %}
+  {% capture path %}comments/{{ site.comments.active }}.html{% endcapture %}
+  {% include {{ path }} %}
+{% endif %}

_includes/comments/disqus.html

@@ -1,14 +1,14 @@
 <!--
   The Disqus lazy loading.
 -->
-
 <div id="disqus_thread" class="pt-2 pb-2">
-  <p class="text-center text-muted small mb-5">
+  <p class="text-center text-muted small">
     Comments powered by <a href="https://disqus.com/">Disqus</a>.
   </p>
 </div>
 
 <script type="text/javascript">
+
   var disqus_config = function () {
     this.page.url = '{{ page.url | absolute_url }}';
     this.page.identifier = '{{ page.url }}';
@@ -20,7 +20,7 @@
     if(entries[0].isIntersecting) {
         (function () {
             var d = document, s = d.createElement('script');
-            s.src = 'https://{{ site.disqus.shortname }}.disqus.com/embed.js';
+            s.src = 'https://{{ site.comments.disqus.shortname }}.disqus.com/embed.js';
             s.setAttribute('data-timestamp', +new Date());
             (d.head || d.body).appendChild(s);
         })();
@@ -46,8 +46,8 @@
 
   const modeToggle = document.querySelector(".mode-toggle");
 
-  if (modeToggle !== null) {
-    modeToggle.addEventListener('click', reloadDisqus);
+  if (typeof modeToggle !== "undefined") {
+    /*  modeToggle.addEventListener('click', reloadDisqus); // not pretty for 'color-scheme'  */
     window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', reloadDisqus);
   }
 

_includes/comments/giscus.html

@@ -0,0 +1,56 @@
+<!-- https://giscus.app/ -->
+<script type="text/javascript">
+  $(function () {
+    const origin = "https://giscus.app";
+    const iframe = "iframe.giscus-frame";
+    const lightTheme = "light";
+    const darkTheme = "dark_dimmed";
+    let initTheme = lightTheme;
+
+    if ($("html[data-mode=dark]").length > 0
+        || ($("html[data-mode]").length == 0
+            && window.matchMedia("(prefers-color-scheme: dark)").matches)) {
+      initTheme = darkTheme;
+    }
+
+    let giscusAttributes = {
+      "src": "https://giscus.app/client.js",
+      "data-repo": "{{ site.comments.giscus.repo}}",
+      "data-repo-id": "{{ site.comments.giscus.repo_id }}",
+      "data-category": "{{ site.comments.giscus.category }}",
+      "data-category-id": "{{ site.comments.giscus.category_id }}",
+      "data-mapping": "{{ site.comments.giscus.mapping | default: 'pathname' }}",
+      "data-reactions-enabled": "1",
+      "data-emit-metadata": "0",
+      "data-theme": initTheme,
+      "data-input-position": "{{ site.comments.giscus.input_position | default: 'bottom' }}",
+      "data-lang": "{{ site.comments.giscus.lang | default: lang }}",
+      "crossorigin": "anonymous",
+      "async": ""
+    };
+
+    let giscusScript = document.createElement("script");
+    Object.entries(giscusAttributes).forEach(([key, value]) => giscusScript.setAttribute(key, value));
+    document.getElementById("tail-wrapper").appendChild(giscusScript);
+
+    addEventListener("message", (event) => {
+      if (event.source === window && event.data &&
+            event.data.direction === ModeToggle.ID) {
+        /* global theme mode changed */
+        const mode = event.data.message;
+        const theme = (mode === ModeToggle.DARK_MODE ? darkTheme : lightTheme);
+
+        const message = {
+          setConfig: {
+            theme: theme
+          }
+        };
+
+        const giscus = document.querySelector(iframe).contentWindow;
+        giscus.postMessage({ giscus: message }, origin);
+      }
+
+    });
+
+  });
+</script>

_includes/comments/utterances.html

@@ -0,0 +1,51 @@
+<!-- https://utteranc.es/ -->
+<script src="https://utteranc.es/client.js"
+        repo="{{ site.comments.utterances.repo }}"
+        issue-term="{{ site.comments.utterances.issue_term }}"
+        crossorigin="anonymous"
+        async>
+</script>
+
+<script type="text/javascript">
+  $(function() {
+    const origin = "https://utteranc.es";
+    const iframe = "iframe.utterances-frame";
+    const lightTheme = "github-light";
+    const darkTheme = "github-dark";
+    let initTheme = lightTheme;
+
+    if ($("html[data-mode=dark]").length > 0
+        || ($("html[data-mode]").length == 0
+            && window.matchMedia("(prefers-color-scheme: dark)").matches)) {
+      initTheme = darkTheme;
+    }
+
+    addEventListener("message", (event) => {
+      let theme;
+
+      /* credit to <https://github.com/utterance/utterances/issues/170#issuecomment-594036347> */
+      if (event.origin === origin) {
+        /* page initial */
+        theme = initTheme;
+
+      } else if (event.source === window && event.data &&
+            event.data.direction === ModeToggle.ID) {
+        /* global theme mode changed */
+        const mode = event.data.message;
+        theme = (mode === ModeToggle.DARK_MODE ? darkTheme : lightTheme);
+
+      } else {
+        return;
+      }
+
+      const message = {
+        type: "set-theme",
+        theme: theme
+      };
+
+      const utterances = document.querySelector(iframe).contentWindow;
+      utterances.postMessage(message, origin);
+    });
+
+  });
+</script>

_includes/css-selector.html

@@ -1,15 +0,0 @@
-<!--
-  CSS selector for site.
--->
-
-<link rel="stylesheet" href="{{ '/assets/css/style.css' | relative_url }}">
-
-{% if site.toc and page.toc %}
-  <link rel="stylesheet"
-    href="https://cdn.jsdelivr.net/gh/afeld/bootstrap-toc@1.0.1/dist/bootstrap-toc.min.css">
-{% endif %}
-
-{% if page.layout == 'page' or page.layout == 'post' %}
-  <!-- Manific Popup -->
-  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/magnific-popup@1.1.0/dist/magnific-popup.min.css">
-{% endif %}

_includes/footer.html

@@ -3,7 +3,7 @@
 -->
 
 <footer class="d-flex w-100 justify-content-center">
-  <div class="d-flex justify-content-between align-items-center">
+  <div class="d-flex justify-content-between align-items-center text-muted">
     <div class="footer-left">
       <p class="mb-0">
         © {{ 'now' | date: "%Y" }}

_includes/head.html

@@ -6,13 +6,12 @@
   <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
 
-  {% if page.layout == 'home' or page.layout == 'post' %}
+  <!-- Allow having a localized datetime different from the appearance language -->
+  {% if site.prefer_datetime_locale %}
+    <meta name="prefer-datetime-locale" content="{{ site.prefer_datetime_locale }}">
+  {% endif %}
 
-    <!-- i18n for `_javascript/utils/timeago.js` -->
-    <meta name="day-prompt" content="{{ site.data.locales[lang].post.timeago.day }}">
-    <meta name="hour-prompt" content="{{ site.data.locales[lang].post.timeago.hour }}">
-    <meta name="minute-prompt" content="{{ site.data.locales[lang].post.timeago.minute }}">
-    <meta name="justnow-prompt" content="{{ site.data.locales[lang].post.timeago.just_now }}">
+  {% if page.layout == 'home' or page.layout == 'post' %}
 
     {% if site.google_analytics.pv.proxy_endpoint %}
       <meta name="pv-proxy-endpoint" content="{{ site.google_analytics.pv.proxy_endpoint }}">
@@ -35,12 +34,24 @@
 
   {% include favicons.html %}
 
-  <!-- Google Fonts -->
-  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin="anonymous">
-  <link rel="dns-prefetch" href="https://fonts.gstatic.com">
+  {% if site.resources.ignore_env != jekyll.environment and site.resources.self_hosted %}
+
+    <link href="{{ site.data.assets[origin].webfonts | relative_url }}" rel="stylesheet">
+
+  {% else %}
+
+    {% for cdn in site.data.assets[origin].cdns %}
+      <link rel="preconnect" href="{{ cdn.url }}" {{ cdn.args }}>
+      <link rel="dns-prefetch" href="{{ cdn.url }}" {{ cdn.args }}>
+    {% endfor %}
+
+    <link rel="stylesheet" href="{{ site.data.assets[origin].webfonts }}">
+
+  {% endif %}
 
   <!-- GA -->
-  {% if jekyll.environment == 'production' %}
+  {% if jekyll.environment == 'production'
+      and site.google_analytics.id != empty and site.google_analytics.id %}
     <link rel="preconnect" href="https://www.google-analytics.com" crossorigin="use-credentials">
     <link rel="dns-prefetch" href="https://www.google-analytics.com">
 
@@ -49,27 +60,31 @@
 
     {% if site.google_analytics.pv.proxy_endpoint %}
       {% assign proxy_url = site.google_analytics.pv.proxy_endpoint
-        | replace: "https://", "" | split: "/" | first | prepend: "https://" %}
-
+          | replace: "https://", "" | split: "/" | first | prepend: "https://" %}
       <link rel="preconnect" href="{{ proxy_url }}" crossorigin="use-credentials">
       <link rel="dns-prefetch" href="{{ proxy_url }}">
     {% endif %}
   {% endif %}
 
-  <!-- jsDelivr CDN -->
-  <link rel="preconnect" href="https://cdn.jsdelivr.net">
-  <link rel="dns-prefetch" href="https://cdn.jsdelivr.net">
-
   <!-- Bootstrap -->
-  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.0.0/dist/css/bootstrap.min.css">
+  <link rel="stylesheet" href="{{ site.data.assets[origin].bootstrap.css }}">
 
   <!-- Font Awesome -->
-  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@5.11.2/css/all.min.css">
+  <link rel="stylesheet" href="{{ site.data.assets[origin].fontawesome.css }}">
 
-  {% include css-selector.html %}
+  <link rel="stylesheet" href="{{ '/assets/css/style.css' | relative_url }}">
+
+  {% if site.toc and page.toc %}
+    <link rel="stylesheet" href="{{ site.data.assets[origin].bootstrap-toc.css }}">
+  {% endif %}
+
+  {% if page.layout == 'page' or page.layout == 'post' %}
+    <!-- Manific Popup -->
+    <link rel="stylesheet" href="{{ site.data.assets[origin].magnific-popup.css }}">
+  {% endif %}
 
   <!-- JavaScript -->
 
-  <script src="https://cdn.jsdelivr.net/npm/jquery@3/dist/jquery.min.js"></script>
+  <script src="{{ site.data.assets[origin].jquery.js }}"></script>
 
 </head>

_includes/js-selector.html

@@ -4,17 +4,46 @@
 
 <!-- layout specified -->
 
-{% if page.layout == 'home' or page.layout == 'post' %}
+{% if page.layout == 'post' %}
   {% if site.google_analytics.pv.proxy_endpoint or site.google_analytics.pv.cache_path %}
     <!-- pv-report needs countup.js -->
-    <script async src="https://cdn.jsdelivr.net/npm/countup.js@1.9.3/dist/countUp.min.js"></script>
+    <script async src="{{ site.data.assets[origin].countup.js }}"></script>
     <script defer src="{{ '/assets/js/dist/pvreport.min.js' | relative_url }}"></script>
   {% endif %}
 {% endif %}
 
 {% if page.layout == 'post' or page.layout == 'page' %}
-  <!-- image lazy-loading & popup -->
-  <script src="https://cdn.jsdelivr.net/combine/npm/lozad/dist/lozad.min.js,npm/magnific-popup@1/dist/jquery.magnific-popup.min.js,npm/clipboard@2/dist/clipboard.min.js"></script>
+  <!-- image lazy-loading & popup & clipboard -->
+  {% assign _urls = site.data.assets[origin].magnific-popup.js
+      | append: ',' | append: site.data.assets[origin].lozad.js
+      | append: ',' | append: site.data.assets[origin].clipboard.js
+  %}
+
+  {% include jsdelivr-combine.html urls=_urls %}
+
+{% endif %}
+
+{% if page.layout == 'home'
+    or page.layout == 'post'
+    or page.layout == 'archives'
+    or page.layout == 'category'
+    or page.layout == 'tag' %}
+
+  {% if site.prefer_datetime_locale %}
+    {% assign locale = site.prefer_datetime_locale | downcase %}
+  {% else %}
+    {% assign locale = site.lang | split: '-' | first %}
+  {% endif %}
+
+  {% assign _urls = site.data.assets[origin].dayjs.js.common
+      | append: ',' | append: site.data.assets[origin].dayjs.js.locale
+      | replace: ':LOCALE', locale
+      | append: ',' | append: site.data.assets[origin].dayjs.js.relativeTime
+      | append: ',' | append: site.data.assets[origin].dayjs.js.localizedFormat
+  %}
+
+  {% include jsdelivr-combine.html urls=_urls %}
+
 {% endif %}
 
 {% if page.layout == 'home'
@@ -22,12 +51,16 @@
     or page.layout == 'post'
     or page.layout == 'page' %}
   {% assign type = page.layout %}
+{% elsif page.layout == 'archives'
+    or page.layout == 'category'
+    or page.layout == 'tag' %}
+  {% assign type = "misc" %}
 {% else %}
   {% assign type = "commons" %}
 {% endif %}
 
-{% assign js = type | prepend: '/assets/js/dist/' | append: '.min.js' %}
-<script defer src="{{ js | relative_url }}"></script>
+{% capture script %}/assets/js/dist/{{ type }}.min.js{% endcapture %}
+<script defer src="{{ script | relative_url }}"></script>
 
 {% if page.math %}
   <!-- MathJax -->
@@ -46,22 +79,21 @@
     }
   };
   </script>
-  <script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>
-  <script type="text/javascript" id="MathJax-script" async
-    src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-chtml.js">
+  <script src="{{ site.data.assets[origin].polyfill.js }}"></script>
+  <script id="MathJax-script" async src="{{ site.data.assets[origin].mathjax.js }}">
   </script>
 {% endif %}
 
 <!-- commons -->
 
-<script src="https://cdn.jsdelivr.net/combine/npm/popper.js@1.16.1,npm/bootstrap@4/dist/js/bootstrap.min.js"></script>
+<script src="{{ site.data.assets[origin].bootstrap.js }}"></script>
 
 {% if jekyll.environment == 'production' %}
   <!-- PWA -->
   <script defer src="{{ '/app.js' | relative_url }}"></script>
 
   <!-- GA -->
-  {% if site.google_analytics.id %}
+  {% if site.google_analytics.id != empty and site.google_analytics.id %}
     {% include google-analytics.html %}
   {% endif %}
 

_includes/jsdelivr-combine.html

@@ -0,0 +1,32 @@
+{% assign urls = include.urls | split: ',' %}
+
+{% assign combined_urls = nil %}
+
+{% assign domain = 'https://cdn.jsdelivr.net/' %}
+
+{% for url in urls %}
+
+  {% if url contains domain %}
+    {% assign url_snippet = url | slice: domain.size, url.size %}
+
+    {% if combined_urls %}
+      {% assign combined_urls = combined_urls | append: ',' | append: url_snippet %}
+    {% else %}
+      {% assign combined_urls = domain | append: 'combine/' | append: url_snippet %}
+    {% endif %}
+
+  {% elsif url contains '//' %}
+
+    <script src="{{ url }}"></script>
+
+  {% else %}
+
+    <script src="{{ url | relative_url }}"></script>
+
+  {% endif %}
+
+{% endfor %}
+
+{% if combined_urls %}
+  <script src="{{ combined_urls }}"></script>
+{% endif %}

_includes/language-alias.html

@@ -0,0 +1,70 @@
+{% comment %}
+
+  Convert the alias of the syntax language to the official name
+
+  See: <https://github.com/rouge-ruby/rouge/wiki/List-of-supported-languages-and-lexers>
+
+{% endcomment %}
+
+{% assign _lang = include.language | default: '' %}
+
+{% case _lang %}
+  {% when 'actionscript', 'as', 'as3' %}
+    {{ 'ActionScript' }}
+  {% when 'applescript' %}
+    {{ 'AppleScript' }}
+  {% when 'brightscript', 'bs', 'brs' %}
+    {{ 'BrightScript' }}
+  {% when 'cfscript', 'cfc' %}
+    {{ 'CFScript' }}
+  {% when 'coffeescript', 'coffee', 'coffee-script' %}
+    {{ 'CoffeeScript' }}
+  {% when 'cs', 'csharp' %}
+   {{ 'C#' }}
+  {% when 'erl' %}
+    {{ 'Erlang' }}
+  {% when 'graphql' %}
+   {{ 'GraphQL' }}
+  {% when 'haskell', 'hs' %}
+   {{ 'Haskell' }}
+  {% when 'javascript', 'js' %}
+    {{ 'JavaScript' }}
+  {% when 'make', 'mf', 'gnumake', 'bsdmake' %}
+    {{ 'Makefile' }}
+  {% when 'md', 'mkd' %}
+    {{ 'Markdown' }}
+  {% when 'm' %}
+    {{ 'Matlab' }}
+  {% when 'objective_c', 'objc', 'obj-c', 'obj_c', 'objectivec' %}
+    {{ 'Objective-C' }}
+  {% when 'perl', 'pl' %}
+    {{ 'Perl' }}
+  {% when 'php','php3','php4','php5' %}
+    {{ 'PHP' }}
+  {% when 'py' %}
+    {{ 'Python' }}
+  {% when 'rb' %}
+    {{ 'Ruby' }}
+  {% when 'rs','no_run','ignore','should_panic' %}
+    {{ 'Rust' }}
+  {% when 'bash', 'zsh', 'ksh', 'sh' %}
+    {{ 'Shell' }}
+  {% when 'st', 'squeak' %}
+    {{ 'Smalltalk' }}
+  {% when 'tex'%}
+    {{ 'TeX' }}
+  {% when 'latex' %}
+    {{ 'LaTex' }}
+  {% when 'ts', 'typescript' %}
+    {{ 'TypeScript' }}
+  {% when 'vb', 'visualbasic' %}
+    {{ 'Visual Basic' }}
+  {% when 'vue', 'vuejs' %}
+    {{ 'Vue.js' }}
+  {% when 'yml' %}
+    {{ 'YAML' }}
+  {% when 'css', 'html', 'scss', 'ssh', 'toml', 'xml', 'yaml', 'json' %}
+    {{ _lang | upcase }}
+  {% else %}
+    {{ _lang | capitalize }}
+{% endcase %}

_includes/mermaid.html

@@ -2,13 +2,39 @@
   mermaid-js loader
 -->
 
-<script src="https://cdn.jsdelivr.net/npm/mermaid@8/dist/mermaid.min.js"></script>
+<script src="{{ site.data.assets[origin].mermaid.js }}"></script>
+
 <script>
   $(function() {
+    function updateMermaid(event) {
+      if (event.source === window && event.data &&
+            event.data.direction === ModeToggle.ID) {
+
+        const mode = event.data.message;
+
+        if (typeof mermaid === "undefined") {
+          return;
+        }
+
+        let expectedTheme = (mode === ModeToggle.DARK_MODE? "dark" : "default");
+        let config = { theme: expectedTheme };
+
+        /* Re-render the SVG › <https://github.com/mermaid-js/mermaid/issues/311#issuecomment-332557344> */
+        $(".mermaid").each(function() {
+          let svgCode = $(this).prev().children().html();
+          $(this).removeAttr("data-processed");
+          $(this).html(svgCode);
+        });
+
+        mermaid.initialize(config);
+        mermaid.init(undefined, ".mermaid");
+      }
+    }
+
     let initTheme = "default";
 
-    if ($("html[mode=dark]").length > 0
-      || ($("html[mode]").length == 0
+    if ($("html[data-mode=dark]").length > 0
+      || ($("html[data-mode]").length == 0
         && window.matchMedia("(prefers-color-scheme: dark)").matches ) ) {
       initTheme = "dark";
     }
@@ -25,5 +51,7 @@
     });
 
     mermaid.initialize(mermaidConf);
+
+    window.addEventListener("message", updateMermaid);
   });
 </script>

_includes/mode-toggle.html

@@ -2,14 +2,13 @@
   Switch the mode between dark and light.
 -->
 
-<i class="mode-toggle fas fa-adjust"></i>
-
 <script type="text/javascript">
-
   class ModeToggle {
     static get MODE_KEY() { return "mode"; }
+    static get MODE_ATTR() { return "data-mode"; }
     static get DARK_MODE() { return "dark"; }
     static get LIGHT_MODE() { return "light"; }
+    static get ID() { return "mode-toggle"; }
 
     constructor() {
       if (this.hasMode) {
@@ -24,10 +23,10 @@
         }
       }
 
-      var self = this;
+      let self = this;
 
       /* always follow the system prefers */
-      this.sysDarkPrefers.addListener(function() {
+      this.sysDarkPrefers.addEventListener("change", () => {
         if (self.hasMode) {
           if (self.isDarkMode) {
             if (!self.isSysDarkPrefer) {
@@ -43,34 +42,19 @@
           self.clearMode();
         }
 
-        self.updateMermaid();
+        self.notify();
+
       });
 
     } /* constructor() */
 
-
-    setDark() {
-      $('html').attr(ModeToggle.MODE_KEY, ModeToggle.DARK_MODE);
-      sessionStorage.setItem(ModeToggle.MODE_KEY, ModeToggle.DARK_MODE);
-    }
-
-    setLight() {
-      $('html').attr(ModeToggle.MODE_KEY, ModeToggle.LIGHT_MODE);
-      sessionStorage.setItem(ModeToggle.MODE_KEY, ModeToggle.LIGHT_MODE);
-    }
-
-    clearMode() {
-      $('html').removeAttr(ModeToggle.MODE_KEY);
-      sessionStorage.removeItem(ModeToggle.MODE_KEY);
-    }
-
     get sysDarkPrefers() { return window.matchMedia("(prefers-color-scheme: dark)"); }
 
     get isSysDarkPrefer() { return this.sysDarkPrefers.matches; }
 
-    get isDarkMode() { return this.mode == ModeToggle.DARK_MODE; }
+    get isDarkMode() { return this.mode === ModeToggle.DARK_MODE; }
 
-    get isLightMode() { return this.mode == ModeToggle.LIGHT_MODE; }
+    get isLightMode() { return this.mode === ModeToggle.LIGHT_MODE; }
 
     get hasMode() { return this.mode != null; }
 
@@ -79,67 +63,67 @@
     /* get the current mode on screen */
     get modeStatus() {
       if (this.isDarkMode
-        || (!this.hasMode && this.isSysDarkPrefer) ) {
+        || (!this.hasMode && this.isSysDarkPrefer)) {
         return ModeToggle.DARK_MODE;
       } else {
         return ModeToggle.LIGHT_MODE;
       }
     }
 
-    updateMermaid() {
-      if (typeof mermaid !== "undefined") {
-        let expectedTheme = (this.modeStatus === ModeToggle.DARK_MODE? "dark" : "default");
-        let config = { theme: expectedTheme };
-
-        /* re-render the SVG › <https://github.com/mermaid-js/mermaid/issues/311#issuecomment-332557344> */
-        $(".mermaid").each(function() {
-          let svgCode = $(this).prev().children().html();
-          $(this).removeAttr("data-processed");
-          $(this).html(svgCode);
-        });
-
-        mermaid.initialize(config);
-        mermaid.init(undefined, ".mermaid");
-      }
+    setDark() {
+      $('html').attr(ModeToggle.MODE_ATTR, ModeToggle.DARK_MODE);
+      sessionStorage.setItem(ModeToggle.MODE_KEY, ModeToggle.DARK_MODE);
     }
 
-    flipMode() {
-      if (this.hasMode) {
-        if (this.isSysDarkPrefer) {
-          if (this.isLightMode) {
-            this.clearMode();
-          } else {
-            this.setLight();
-          }
+    setLight() {
+      $('html').attr(ModeToggle.MODE_ATTR, ModeToggle.LIGHT_MODE);
+      sessionStorage.setItem(ModeToggle.MODE_KEY, ModeToggle.LIGHT_MODE);
+    }
 
-        } else {
-          if (this.isDarkMode) {
-            this.clearMode();
-          } else {
-            this.setDark();
-          }
-        }
+    clearMode() {
+      $('html').removeAttr(ModeToggle.MODE_ATTR);
+      sessionStorage.removeItem(ModeToggle.MODE_KEY);
+    }
 
-      } else {
-        if (this.isSysDarkPrefer) {
-          this.setLight();
-        } else {
-          this.setDark();
-        }
-      }
-
-      this.updateMermaid();
-
-    } /* flipMode() */
+    /* Notify another plugins that the theme mode has changed */
+    notify() {
+      window.postMessage({
+        direction: ModeToggle.ID,
+        message: this.modeStatus
+      }, "*");
+    }
 
   } /* ModeToggle */
 
-  let toggle = new ModeToggle();
+  const toggle = new ModeToggle();
 
-  $(".mode-toggle").click(function() {
+  function flipMode() {
+    if (toggle.hasMode) {
+      if (toggle.isSysDarkPrefer) {
+        if (toggle.isLightMode) {
+          toggle.clearMode();
+        } else {
+          toggle.setLight();
+        }
 
-    toggle.flipMode();
+      } else {
+        if (toggle.isDarkMode) {
+          toggle.clearMode();
+        } else {
+          toggle.setDark();
+        }
+      }
 
-  });
+    } else {
+      if (toggle.isSysDarkPrefer) {
+        toggle.setLight();
+      } else {
+        toggle.setDark();
+      }
+    }
+
+    toggle.notify();
+
+  } /* flipMode() */
 
 </script>

_includes/no-zero-date.html

@@ -1,13 +0,0 @@
-{% comment %}
-  Remove the zero padding from a month/day string
-{% endcomment %}
-
-{% assign ret = include.date_str %}
-{% assign _first_chat = ret | slice: 0 %}
-
-{% if _first_chat == '0' %}
-  {% assign _last_idx = ret.size | minus: 1 %}
-  {% assign ret = ret | slice: 1, _last_idx %}
-{% endif %}
-
-{{ ret | replace: ' 0', ' ' }}

_includes/panel.html

@@ -1,59 +0,0 @@
-<!--
-  The Pannel on right side (Desktop views)
--->
-
-{% include lang.html %}
-
-<div id="panel-wrapper" class="col-xl-3 pl-2 text-muted topbar-down">
-
-  <div class="access">
-
-  {% include update-list.html %}
-
-  {% if update_list.size > 0 %}
-
-    <div id="access-lastmod" class="post">
-      <span>{{- site.data.locales[lang].panel.lastmod -}}</span>
-      <ul class="post-content pl-0 pb-1 ml-1 mt-2">
-
-      {% for item in update_list %}
-        {% assign index = item | split: "::" | last | plus: 0 %}
-        {% assign post = site.posts[index] %}
-        {% assign url = post.url | relative_url %}
-        <li><a href="{{ url }}">{{ post.title }}</a></li>
-      {% endfor %}
-
-      </ul>
-    </div> <!-- #access-lastmod -->
-
-  {% endif %}
-
-  {% include trending-tags.html %}
-
-  {% if trending_tags.size > 0 %}
-    <div id="access-tags">
-      <span>{{- site.data.locales[lang].panel.trending_tags -}}</span>
-      <div class="d-flex flex-wrap mt-3 mb-1 mr-3">
-
-      {% for tag_name in trending_tags %}
-        {% assign url = tag_name | slugify | url_encode | prepend: "/tags/" | append: "/" %}
-        <a class="post-tag" href="{{ url | relative_url }}">{{ tag_name }}</a>
-      {% endfor %}
-
-      </div>
-    </div>
-  {% endif %}
-  </div> <!-- .access -->
-
-  {% if include.toc %}
-    <!-- BS-toc.js will be loaded at medium priority -->
-    <script src="https://cdn.jsdelivr.net/gh/afeld/bootstrap-toc@1.0.1/dist/bootstrap-toc.min.js"></script>
-    <div id="toc-wrapper" class="pl-0 pr-4 mb-5">
-      <span class="pl-3 pt-2 mb-2">
-      {{- site.data.locales[lang].panel.toc -}}
-      </span>
-      <nav id="toc" data-toggle="toc"></nav>
-    </div>
-  {% endif %}
-
-</div> <!-- #panel-wrapper -->

_includes/post-sharing.html

@@ -9,16 +9,17 @@
     {% assign url = page.url | absolute_url %}
 
     {% for share in site.data.share.platforms %}
-      {% assign link = share.link | replace: 'TITLE', title | replace: 'URL', url %}
+      {% assign link = share.link | replace: 'TITLE', title | replace: 'URL', url | escape %}
         <a href="{{ link }}" data-toggle="tooltip" data-placement="top"
           title="{{ share.type }}" target="_blank" rel="noopener" aria-label="{{ share.type }}">
           <i class="fa-fw {{ share.icon }}"></i>
         </a>
     {% endfor %}
 
-    <i class="fa-fw fas fa-link small" onclick="copyLink('', '{{ site.data.locales[lang].post.button.copy.succeed }}')"
+    <i id="copy-link" class="fa-fw fas fa-link small"
         data-toggle="tooltip" data-placement="top"
-        title="{{ site.data.locales[lang].post.button.copy.title }}">
+        title="{{ site.data.locales[lang].post.button.share_link.title }}"
+        data-title-succeed="{{ site.data.locales[lang].post.button.share_link.succeed }}">
     </i>
 
   </span>

_includes/read-time.html

@@ -22,9 +22,9 @@
 <!-- return element -->
 <span class="readtime" data-toggle="tooltip" data-placement="bottom"
   title="{{ words }} {{ site.data.locales[lang].post.words }}">
-  {{- read_time -}}{{" "}}{{- site.data.locales[lang].post.read_time.unit -}}
+  <em>{{- read_time -}}{{" "}}{{- site.data.locales[lang].post.read_time.unit -}}</em>
   {%- if include.prompt -%}
-    {% assign _prompt_words = read_prompt | number_of_words: 'auto' %}
-    {% unless _prompt_words > 1 %}{{" "}}{% endunless %}{{ read_prompt }}
+    {%- assign _prompt_words = read_prompt | number_of_words: 'auto' -%}
+    {%- unless _prompt_words > 1 -%}{{ " " }}{%- endunless -%}{{ read_prompt }}
   {%- endif -%}
 </span>

_includes/refactor-content.html

@@ -38,63 +38,101 @@
   %}
 {% endif %}
 
-
 <!-- images -->
 
-{% if _content contains '<img src="' %}
-
-  <!-- add CDN prefix if it exists -->
-
-  {% if site.img_cdn != '' %}
-    {% assign img_path_replacement = '<img src="' | append: site.img_cdn | append: '/' %}
-  {% else %}
-    {% assign img_path_replacement = '<img src="' | append: site.baseurl | append: '/' %}
-  {% endif %}
-
-  {% assign _content = _content | replace: '<img src="/', img_path_replacement %}
-
-  <!-- lazy-load images <https://github.com/ApoorvSaxena/lozad.js#usage> -->
-
-  {% assign _content = _content | replace: '<img src="', '<img data-proofer-ignore data-src="' %}
-
-  <!-- add image placehoder to prevent layout reflow -->
+{% assign IMG_TAG = '<img ' %}
 
+{% if _content contains IMG_TAG %}
   {% assign _img_content = nil %}
+  {% assign _img_snippets = _content | split: IMG_TAG %}
 
-  {% assign _images = _content | split: '<img ' %}
-
-  {% for _img in _images %}
+  {% for _img_snippet in _img_snippets %}
     {% if forloop.first %}
-      {% assign _img_content = _img %}
+      {% assign _img_content = _img_snippet %}
       {% continue %}
     {% endif %}
 
     {% assign _width = nil %}
     {% assign _height = nil %}
-    {% assign _attrs = _img | split: '>' | first | split: ' ' %}
+    {% assign _src = nil %}
+
+    {% assign _left = _img_snippet | split: '>' | first %}
+    {% assign _right = _img_snippet | remove: _left %}
+
+    {% assign _left = _left | remove: ' /' %}
+    {% assign _left = _left | replace: ' w=', ' width=' | replace: ' h=', ' height=' %}
+    {% assign _attrs = _left | split: ' ' %}
 
     {% for _attr in _attrs %}
-      {% capture _key %}{{ _attr | split: '=' | first }}{% endcapture %}
-      {% capture _value %}{{ _attr | split: '=' | last | replace: '"', '' }}{% endcapture %}
+      {% assign _pair = _attr | split: '=' %}
+      {% if _pair.size < 2 %}
+        {% continue %}
+      {% endif %}
+
+      {% capture _key %}{{ _pair | first }}{% endcapture %}
+      {% capture _value %}{{ _pair | last | replace: '"', '' }}{% endcapture %}
 
       {% case _key %}
         {% when 'width' %}
           {% assign _width = _value %}
         {% when 'height' %}
           {% assign _height = _value %}
+        {% when 'src' %}
+          {% assign _src = _value %}
       {% endcase %}
 
-      {% if _width and _height %}
-        {% capture _svg %}data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 {{_width}} {{_height}}'%3E%3C/svg%3E{% endcapture %}
-        {% assign _img_content = _img_content | append: '<img src="' | append: _svg | append: '" ' | append: _img %}
+      {% if _width and _height and _src %}
         {% break %}
       {% endif %}
-
     {% endfor %}
 
-    {% unless _width and _height %}
-      {% assign _img_content = _img_content | append: '<img ' | append: _img %}
-    {% endunless %}
+    {% if _src %}
+      {% unless _src contains '://' %}
+
+        <!-- Add CDN URL -->
+        {% if site.img_cdn %}
+          {% assign _src_prefix = site.img_cdn %}
+        {% else %}
+          {% assign _src_prefix = site.baseurl %}
+        {% endif %}
+
+        <!-- Add image path -->
+        {% if page.img_path %}
+          {% assign _path = page.img_path %}
+          {% assign last_char = _path | slice: -1 %}
+
+          {% unless last_char == '/' %}
+            {% assign _path = _path | append: '/' %}
+          {% endunless %}
+
+          {% assign _src_prefix = _src_prefix | append: _path %}
+        {% endif %}
+
+        {% assign _final_src = _src_prefix | append: _src %}
+        {% assign _left = _left | replace: _src, _final_src %}
+
+      {% endunless %}
+
+      <!-- lazy-load images <https://github.com/ApoorvSaxena/lozad.js#usage> -->
+
+      {% assign _left = _left | replace: 'src=', 'data-src=' %}
+
+    {% endif %}
+
+    <!-- Add SVG placehoder to prevent layout reflow -->
+
+    {% if _width and _height %}
+      {%- capture _svg -%}
+        src="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 {{ _width }} {{ _height }}'%3E%3C/svg%3E"
+      {%- endcapture -%}
+
+      {% assign _left =  _svg | append: ' ' | append: _left %}
+    {% endif %}
+
+    <!-- Bypass the HTML-proofer test -->
+    {% assign _left = _left | append: ' data-proofer-ignore' %}
+
+    {% assign _img_content = _img_content | append: IMG_TAG | append: _left | append: _right %}
 
   {% endfor %}
 
@@ -118,17 +156,24 @@
       {% assign _left = _snippet | split: '><' | last%}
 
       {% if _left contains 'file="' %}
-        {% assign _text = _left | split: 'file="' | last | split: '"' | first %}
+        {% assign _label_text = _left | split: 'file="' | last | split: '"' | first %}
+        {% assign _label_icon = 'far fa-file-code' %}
       {% else %}
-        {% assign _text = _left | split: 'language-' | last | split: ' ' | first %}
+        {% assign _lang = _left | split: 'language-' | last | split: ' ' | first %}
+        {% capture _label_text %}{% include language-alias.html language=_lang %}{% endcapture %}
+        {% assign _label_icon = 'fas fa-code small' %}
       {% endif %}
 
+      {% capture _label %}
+        <span data-label-text="{{ _label_text | strip }}"><i class="{{ _label_icon }}"></i></span>
+      {% endcapture %}
+
       {% assign _new_content = _new_content | append: _snippet
-          | append: '<div class="code-header" text-data="'
-          | append: _text
-          | append: '"><button data-original-title="'
-          | append: site.data.locales[lang].post.button.copy
-          | append: '"><i class="far fa-clone"></i></button></div>'
+          | append: '<div class="code-header">'
+          | append: _label
+          | append: '<button aria-label="copy" data-title-succeed="'
+          | append: site.data.locales[lang].post.button.copy_code.succeed
+          | append: '"><i class="far fa-clipboard"></i></button></div>'
           | append: '<div class="highlight"><code>'
       %}
 
@@ -140,6 +185,92 @@
 
 {% endif %}
 
+<!-- Create heading anchors -->
+
+{% assign heading_levels = '2,3,4,5' | split: ',' %}
+{% assign _heading_content = _content %}
+
+{% for level in heading_levels %}
+  {% capture mark_start %}<h{{ level }} id="{% endcapture %}
+  {% capture mark_end %}</h{{ level }}>{% endcapture %}
+
+  {% if _heading_content contains mark_start %}
+    {% assign _new_content = nil %}
+    {% assign heading_snippets = _heading_content | split: mark_start %}
+
+    {% for snippet in heading_snippets %}
+      {% if forloop.first %}
+        {% assign _new_content = snippet %}
+        {% continue %}
+      {% endif %}
+
+      {% assign id = snippet | split: '"' | first %}
+      {% capture anchor %}<a href="#{{ id }}" class="anchor text-muted"><i class="fas fa-hashtag"></i></a>{% endcapture %}
+
+      {% assign left = snippet | split: mark_end | first %}
+      {% assign right = snippet | slice: left.size, snippet.size %}
+      {% assign left = left | replace: '">', '"><span class="mr-2">' | append: '</span>' %}
+
+      {% assign _new_content = _new_content | append: mark_start
+          | append: left | append: anchor | append: mark_end | append: right
+      %}
+
+    {% endfor %}
+
+    {% assign _heading_content = _new_content %}
+
+  {% endif %}
+{% endfor %}
+
+{% assign _content = _heading_content %}
+
+<!-- Wrap prompt element of blockquote with the <div> tag -->
+
+{% assign blockquote_start = '<blockquote class=' %}
+{% assign blockquote_end = '</blockquote>' %}
+{% assign cls_prefix = 'prompt-' %}
+
+{% if _content contains blockquote_start %}
+
+  {% assign _prompt_content = nil %}
+  {% assign _prompt_snippets = _content | split: blockquote_start %}
+
+  {% for _snippet in _prompt_snippets %}
+
+    {% if forloop.first %}
+      {% assign _prompt_content =  _snippet %}
+      {% continue %}
+    {% endif %}
+
+    {% assign left = _snippet | split: blockquote_end | first %}
+    {% assign right = _snippet | slice: left.size, _snippet.size %}
+
+    {% assign cls_str = left | split: '>' | first %}
+    {% assign cls_array = cls_str | remove: '"' | split: ' ' %}
+    {% assign is_prompt = false %}
+
+    {% for cls in cls_array %}
+      {% if cls contains cls_prefix %}
+        {% assign is_prompt = true %}
+        {% break %}
+      {% endif %}
+    {% endfor %}
+
+    {% unless is_prompt %}
+      {% assign _prompt_content = _prompt_content | append: blockquote_start | append: _snippet %}
+      {% continue %}
+    {% endunless %}
+
+    {% assign left = left | slice: cls_str.size, left.size %}
+    {% assign left = cls_str | append: '><div' | append: left | append: '</div>' %}
+
+    {% assign _prompt_content = _prompt_content | append: blockquote_start | append: left | append: right %}
+
+  {% endfor %}
+
+  {% assign _content = _prompt_content %}
+
+{% endif %}
 
 <!-- return -->
 

_includes/related-posts.html

@@ -94,7 +94,7 @@
             <div class="text-muted small">
               <p>
                 {% include no-linenos.html content=post.content %}
-                {{ content | markdownify | strip_html | truncate: 200 }}
+                {{ content | markdownify | strip_html | truncate: 200 | escape }}
               </p>
             </div>
           </div>

_includes/search-loader.html

@@ -5,7 +5,7 @@
 
 {% capture result_elem %}
 <div class="pl-1 pr-1 pl-sm-2 pr-sm-2 pl-lg-4 pr-lg-4 pl-xl-0 pr-xl-0">
-  <a href="{{ site.url }}{url}">{title}</a>
+  <a href="{url}">{title}</a>
   <div class="post-meta d-flex flex-column flex-sm-row text-muted mt-1 mb-1">
     {categories}
     {tags}
@@ -16,7 +16,7 @@
 
 {% capture not_found %}<p class="mt-5">{{ site.data.locales[lang].search.no_results }}</p>{% endcapture %}
 
-<script src="https://cdn.jsdelivr.net/npm/simple-jekyll-search@1.10.0/dest/simple-jekyll-search.min.js"></script>
+<script src="{{ site.data.assets[origin].search.js }}"></script>
 
 <script>
 SimpleJekyllSearch({

_includes/search-results.html

@@ -4,15 +4,7 @@
 <div id="search-result-wrapper" class="d-flex justify-content-center unloaded">
   <div class="col-12 col-sm-11 post-content">
     <div id="search-hints">
-      <h4 class="text-muted mb-4">{{ site.data.locales[lang].panel.trending_tags }}</h4>
-
       {% include trending-tags.html %}
-
-      {% for tag in trending_tags %}
-        {% capture url %}/tags/{{ tag | slugify | url_encode }}/{% endcapture %}
-        <a class="post-tag" href="{{ url | relative_url }}">{{ tag | replace: '-', ' ' }}</a>
-      {% endfor %}
-
     </div>
     <div id="search-results" class="d-flex flex-wrap justify-content-center text-muted mt-3"></div>
   </div>

_includes/sidebar.html

@@ -2,20 +2,22 @@
   The Side Bar
 -->
 
-<div id="sidebar" class="d-flex flex-column align-items-end" lang="{{lang}}">
+<div id="sidebar" class="d-flex flex-column align-items-end">
   <div class="profile-wrapper text-center">
     <div id="avatar">
       <a href="{{ '/' | relative_url }}" alt="avatar" class="mx-auto">
-        {% capture avatar_url %}
-          {%- if site.avatar contains '://' -%}
-            {{ site.avatar }}
-          {%- elsif site.img_cdn != '' and site.img_cdn -%}
-            {{ site.avatar | prepend: site.img_cdn }}
-          {%- else -%}
-            {{ site.avatar | relative_url }}
-          {%- endif -%}
-        {% endcapture %}
-        <img src="{{ avatar_url }}" alt="avatar" onerror="this.style.display='none'">
+        {% if site.avatar != empty and site.avatar %}
+          {% capture avatar_url %}
+            {% if site.avatar contains '://' %}
+              {{ site.avatar }}
+            {% elsif site.img_cdn != empty and site.img_cdn %}
+              {{ site.avatar | prepend: site.img_cdn }}
+            {% else %}
+              {{ site.avatar | relative_url }}
+            {% endif %}
+          {% endcapture %}
+          <img src="{{ avatar_url }}" alt="avatar" onerror="this.style.display='none'">
+        {% endif %}
       </a>
     </div>
 
@@ -49,7 +51,17 @@
 
   </ul> <!-- ul.nav.flex-column -->
 
-  <div class="sidebar-bottom mt-auto d-flex flex-wrap justify-content-center">
+  <div class="sidebar-bottom mt-auto d-flex flex-wrap justify-content-center align-items-center">
+
+    {% unless site.theme_mode %}
+      <button class="mode-toggle btn" aria-label="Switch Mode">
+        <i class="fas fa-adjust"></i>
+      </button>
+
+      {% if site.data.contact.size > 0 %}
+        <span class="icon-border"></span>
+      {% endif %}
+    {% endunless %}
 
     {% for entry in site.data.contact %}
       {% capture url %}
@@ -69,7 +81,6 @@
 
       {% if url %}
       <a href="{{ url }}" aria-label="{{ entry.type }}"
-        {% unless site.theme_mode %}class="order-{{ forloop.index | plus: 2 }}"{% endunless %}
         {% unless entry.noblank %}target="_blank" rel="noopener"{% endunless %}>
         <i class="{{ entry.icon }}"></i>
       </a>
@@ -77,16 +88,6 @@
 
     {% endfor %}
 
-    {% unless site.theme_mode %}
-      {% if site.data.contact.size > 0 %}
-        <span class="icon-border order-2"></span>
-      {% endif %}
-
-      <span id="mode-toggle-wrapper" class="order-1">
-        {% include mode-toggle.html %}
-      </span>
-    {% endunless %}
-
   </div> <!-- .sidebar-bottom -->
 
 </div><!-- #sidebar -->

_includes/timeago.html

@@ -1,27 +1,15 @@
 <!--
   Date format snippet
-  See: /assets/js/_utils/timeage.js
+  See: ${JS_ROOT}/utils/timeago.js
 -->
 
-{% assign tooltip_df = site.data.locales[lang].date_format.tooltip %}
-{% assign post_long_df = site.data.locales[lang].date_format.post.long %}
-{% assign post_short_df = site.data.locales[lang].date_format.post.short %}
-
-{% if include.preposition %}
-  {{ include.preposition }}
-{% endif %}
-<span class="timeago {% if include.class %}{{ include.class }}{% endif %}"
-  {% if include.tooltip %}
-    data-toggle="tooltip"
-    data-placement="bottom"
-    title="{{ include.date | date: tooltip_df }}"
-  {% endif %}>
-  {%- assign this_year = site.time | date: "%Y" -%}
-  {%- assign post_year = include.date | date: "%Y" -%}
-  {%- if post_year == this_year -%}
-    {{ include.date | date: post_short_df }}
-  {%- else -%}
-    {{ include.date | date: post_long_df }}
-  {%- endif -%}
-  <i class="unloaded">{{ include.date | date_to_xmlschema }}</i>
-</span>
+<em class="timeago{% if include.class %} {{ include.class }}{% endif %}"
+    data-ts="{{ include.date | date: '%s' }}"
+    {% if include.tooltip %}
+      data-toggle="tooltip" data-placement="bottom" data-tooltip-df="llll"
+    {% endif %}
+    {% if include.capitalize %}
+      data-capitalize="true"
+    {% endif %}>
+  {{ include.date | date: '%Y-%m-%d' }}
+</em>

_includes/toc.html

@@ -0,0 +1,16 @@
+{% assign enable_toc = false %}
+{% if site.toc and page.toc %}
+  {% if page.content contains '<h2' or page.content contains '<h3' %}
+    {% assign enable_toc = true %}
+  {% endif %}
+{% endif %}
+
+{% if enable_toc %}
+<!-- BS-toc.js will be loaded at medium priority -->
+<script src="{{ site.data.assets[origin].bootstrap-toc.js }}"></script>
+
+<div id="toc-wrapper" class="pl-0 pr-4 mb-5">
+  <div class="panel-heading pl-3 pt-2 mb-2">{{- site.data.locales[lang].panel.toc -}}</div>
+  <nav id="toc" data-toggle="toc"></nav>
+</div>
+{% endif %}

_includes/topbar.html

@@ -2,7 +2,7 @@
   The Top Bar
 -->
 
-<div id="topbar-wrapper" class="row justify-content-center topbar-down">
+<div id="topbar-wrapper" class="row justify-content-center">
   <div id="topbar" class="col-11 d-flex h-100 align-items-center justify-content-between">
     <span id="breadcrumb">
 
@@ -50,7 +50,7 @@
     <div id="topbar-title">
       {% if page.layout == 'home' %}
         {{- site.data.locales[lang].title | default: site.title -}}
-      {% elsif page.collection == 'tabs' %}
+      {% elsif page.collection == 'tabs' or page.layout == 'page' %}
         {%- capture tab_key -%}{{ page.url | split: '/' }}{%- endcapture -%}
         {{- site.data.locales[lang].tabs[tab_key] | default: page.title -}}
       {% else %}
@@ -63,7 +63,6 @@
       <i class="fas fa-search fa-fw"></i>
       <input class="form-control" id="search-input" type="search"
         aria-label="search" autocomplete="off" placeholder="{{ site.data.locales[lang].search.hint | capitalize }}...">
-      <i class="fa fa-times-circle fa-fw" id="search-cleaner"></i>
     </span>
     <span id="search-cancel" >{{ site.data.locales[lang].search.cancel }}</span>
   </div>

_includes/trending-tags.html

@@ -34,3 +34,17 @@
     {% endif %}
   {% endfor %}
 {% endfor %}
+
+{% if trending_tags.size > 0 %}
+  <div id="access-tags">
+    <div class="panel-heading">{{- site.data.locales[lang].panel.trending_tags -}}</div>
+    <div class="d-flex flex-wrap mt-3 mb-1 mr-3">
+
+    {% for tag_name in trending_tags %}
+      {% assign url = tag_name | slugify | url_encode | prepend: "/tags/" | append: "/" %}
+      <a class="post-tag" href="{{ url | relative_url }}">{{ tag_name }}</a>
+    {% endfor %}
+
+    </div>
+  </div>
+{% endif %}

_includes/update-list.html

@@ -22,3 +22,19 @@
 {% for entry in all_list limit:MAX_SIZE %}
   {% assign update_list = update_list | push: entry %}
 {% endfor %}
+
+{% if update_list.size > 0 %}
+
+  <div id="access-lastmod" class="post">
+    <div class="panel-heading">{{- site.data.locales[lang].panel.lastmod -}}</div>
+    <ul class="post-content pl-0 pb-1 ml-1 mt-2">
+      {% for item in update_list %}
+        {% assign index = item | split: "::" | last | plus: 0 %}
+        {% assign post = site.posts[index] %}
+        {% assign url = post.url | relative_url %}
+      <li><a href="{{ url }}">{{ post.title }}</a></li>
+      {% endfor %}
+    </ul>
+  </div> <!-- #access-lastmod -->
+
+{% endif %}

_javascript/commons/locale-helper.js

@@ -0,0 +1,19 @@
+/**
+ * A tool for locale datetime
+ */
+
+const LocaleHelper = (function () {
+  const $preferLocale = $('meta[name="prefer-datetime-locale"]');
+  const locale = $preferLocale.length > 0 ?
+      $preferLocale.attr('content').toLowerCase() : $('html').attr('lang').substr(0, 2);
+  const attrTimestamp = 'data-ts';
+  const attrDateFormat = 'data-df';
+
+  return {
+    locale: () => locale,
+    attrTimestamp: () => attrTimestamp,
+    attrDateFormat: () => attrDateFormat,
+    getTimestamp: ($elem) => Number($elem.attr(attrTimestamp)),  // unix timestamp
+    getDateFormat: ($elem) => $elem.attr(attrDateFormat)
+  };
+}());

_javascript/commons/mode-toggle.js

@@ -0,0 +1,13 @@
+/*
+ * Listener for theme mode toggle
+ */
+$(function() {
+  $(".mode-toggle").click((e) => {
+    const $target = $(e.target);
+    let $btn = ($target.prop("tagName") === "button".toUpperCase() ?
+      $target : $target.parent());
+
+    $btn.blur(); // remove the clicking outline
+    flipMode();
+  });
+});

_javascript/commons/scroll-helper.js

@@ -0,0 +1,36 @@
+/**
+ * A tool for smooth scrolling and topbar switcher
+ */
+const ScrollHelper = (function () {
+  const $body = $("body");
+  const ATTR_TOPBAR_VISIBLE = "data-topbar-visible";
+  const topbarHeight = $("#topbar-wrapper").outerHeight();
+
+  let scrollUpCount = 0; // the number of times the scroll up was triggered by ToC or anchor
+  let topbarLocked = false;
+  let orientationLocked = false;
+
+  return {
+    hideTopbar: () => $body.attr(ATTR_TOPBAR_VISIBLE, false),
+    showTopbar: () => $body.attr(ATTR_TOPBAR_VISIBLE, true),
+
+    // scroll up
+
+    addScrollUpTask: () => {
+      scrollUpCount += 1;
+      if (!topbarLocked) { topbarLocked = true; }
+    },
+    popScrollUpTask: () => scrollUpCount -= 1,
+    hasScrollUpTask: () => scrollUpCount > 0,
+    topbarLocked: () => topbarLocked === true,
+    unlockTopbar: () => topbarLocked = false,
+    getTopbarHeight: () => topbarHeight,
+
+    // orientation change
+
+    orientationLocked: () => orientationLocked === true,
+    lockOrientation: () => orientationLocked = true,
+    unLockOrientation: () => orientationLocked = false
+  };
+
+}());

_javascript/commons/search-display.js

@@ -3,12 +3,9 @@
 */
 
 $(function() {
-
   const btnSbTrigger = $("#sidebar-trigger");
   const btnSearchTrigger = $("#search-trigger");
   const btnCancel = $("#search-cancel");
-  const btnClear = $("#search-cleaner");
-
   const main = $("#main");
   const topbarTitle = $("#topbar-title");
   const searchWrapper = $("#search-wrapper");
@@ -33,8 +30,7 @@ $(function() {
     };
   }());
 
-
-  /*--- Actions in small screens (Sidebar unloaded) ---*/
+  /*--- Actions in mobile screens (Sidebar hidden) ---*/
 
   const mobileSearchBar = (function () {
     return {
@@ -75,7 +71,6 @@ $(function() {
             hints.removeClass("unloaded");
           }
           resultWrapper.addClass("unloaded");
-          btnClear.removeClass("visible");
           main.removeClass("unloaded");
 
           // now the release method must be called after $(#main) display
@@ -92,7 +87,6 @@ $(function() {
 
   }());
 
-
   function isMobileView() {
     return btnCancel.hasClass("loaded");
   }
@@ -116,38 +110,20 @@ $(function() {
     searchWrapper.removeClass("input-focus");
   });
 
-  input.on("keyup", function(e) {
-    if (e.keyCode === 8 && input.val() === "") {
-      if (!isMobileView()) {
-        resultSwitch.off();
-      } else {
+  input.on("input", () => {
+    if (input.val() === "") {
+      if (isMobileView()) {
         hints.removeClass("unloaded");
+      } else {
+        resultSwitch.off();
       }
+
     } else {
-      if (input.val() !== "") {
-        resultSwitch.on();
-
-        if (!btnClear.hasClass("visible")) {
-          btnClear.addClass("visible");
-        }
-
-        if (isMobileView()) {
-          hints.addClass("unloaded");
-        }
+      resultSwitch.on();
+      if (isMobileView()) {
+        hints.addClass("unloaded");
       }
     }
   });
 
-  btnClear.on("click", function() {
-    input.val("");
-    if (isMobileView()) {
-      hints.removeClass("unloaded");
-      results.empty();
-    } else {
-      resultSwitch.off();
-    }
-    input.focus();
-    btnClear.removeClass("visible");
-  });
-
 });

_javascript/commons/topbar-switch.js

@@ -1,69 +0,0 @@
-/*
- * Hide Header on scroll down
- */
-
-$(function() {
-
-  const topbarWrapper = $("#topbar-wrapper");
-  const toc = $("#toc-wrapper");
-  const access = $(".access");
-  const searchInput = $("#search-input");
-
-  let didScroll;
-  let lastScrollTop = 0;
-
-  const delta = 5;
-  const topbarHeight = topbarWrapper.outerHeight();
-
-  function hasScrolled() {
-    var st = $(this).scrollTop();
-
-    /* Make sure they scroll more than delta */
-    if (Math.abs(lastScrollTop - st) <= delta) {
-      return;
-    }
-
-    if (st > lastScrollTop && st > topbarHeight) {
-      /* Scroll Down */
-      topbarWrapper.removeClass("topbar-down").addClass("topbar-up");
-
-      if (toc.length > 0) {
-        toc.removeClass("topbar-down");
-      }
-
-      if (access.length > 0) {
-        access.removeClass("topbar-down");
-      }
-
-      if (searchInput.is(":focus")) {
-        searchInput.blur(); /* remove focus */
-      }
-
-    } else if (st + $(window).height() < $(document).height()) {
-      /* Scroll Up */
-      topbarWrapper.removeClass("topbar-up").addClass("topbar-down");
-      if (toc.length > 0) {
-        toc.addClass("topbar-down");
-      }
-      if (access.length > 0) {
-        access.addClass("topbar-down");
-      }
-    }
-
-    lastScrollTop = st;
-  }
-
-  $(window).scroll(function(event) {
-    if ($("#topbar-title").is(":hidden")) { /* Not in small screens */
-      didScroll = true;
-    }
-  });
-
-  setInterval(function() {
-    if (didScroll) {
-      hasScrolled();
-      didScroll = false;
-    }
-  }, 250);
-
-});

_javascript/commons/topbar-switcher.js

@@ -0,0 +1,90 @@
+/*
+ * Hide Header on scroll down
+ */
+
+$(function() {
+  const $searchInput = $("#search-input");
+  const delta = ScrollHelper.getTopbarHeight();
+
+  let didScroll;
+  let lastScrollTop = 0;
+
+  function hasScrolled() {
+    let st = $(this).scrollTop();
+
+    /* Make sure they scroll more than delta */
+    if (Math.abs(lastScrollTop - st) <= delta) {
+      return;
+    }
+
+    if (st > lastScrollTop ) { // Scroll Down
+      ScrollHelper.hideTopbar();
+
+      if ($searchInput.is(":focus")) {
+        $searchInput.blur(); /* remove focus */
+      }
+
+    } else  { // Scroll up
+      // has not yet scrolled to the bottom of the screen, that is, there is still space for scrolling
+      if (st + $(window).height() < $(document).height()) {
+
+        if (ScrollHelper.hasScrollUpTask()) {
+          return;
+        }
+
+        if (ScrollHelper.topbarLocked()) { // avoid redundant scroll up event from smooth scrolling
+          ScrollHelper.unlockTopbar();
+        } else {
+          if (ScrollHelper.orientationLocked()) { // avoid device auto scroll up on orientation change
+            ScrollHelper.unLockOrientation();
+          } else {
+            ScrollHelper.showTopbar();
+          }
+        }
+      }
+    }
+
+    lastScrollTop = st;
+
+  } // hasScrolled()
+
+  function handleLandscape() {
+    if ($(window).scrollTop() === 0) {
+      return;
+    }
+    ScrollHelper.lockOrientation();
+    ScrollHelper.hideTopbar();
+  }
+
+  if (screen.orientation) {
+    screen.orientation.onchange = () => {
+      const type = screen.orientation.type;
+      if (type ===  "landscape-primary" || type === "landscape-secondary") {
+        handleLandscape();
+      }
+    };
+
+  } else {
+    // for the browsers that not support `window.screen.orientation` API
+    $(window).on("orientationchange",() => {
+      if ($(window).width() < $(window).height()) { // before rotating, it is still in portrait mode.
+        handleLandscape();
+      }
+    });
+  }
+
+  $(window).scroll(() => {
+    if (didScroll) {
+      return;
+    }
+    didScroll = true;
+  });
+
+  setInterval(() => {
+    if (didScroll) {
+      hasScrolled();
+      didScroll = false;
+    }
+  }, 250);
+
+});

_javascript/commons/topbar-title.js

@@ -1,46 +1,66 @@
 /*
- * Top bar title auto change while scrolling in mobile screens.
+ * Top bar title auto change while scrolling up/down in mobile screens.
 */
 
 $(function() {
+  const titleSelector = "div.post>h1:first-of-type";
+  const $pageTitle = $(titleSelector);
+  const $topbarTitle = $("#topbar-title");
 
-  const topbarTitle = $("#topbar-title");
-  const postTitle = $("div.post>h1");
+  if ($pageTitle.length === 0 /* on Home page */
+      || $pageTitle.hasClass("dynamic-title")
+      || $topbarTitle.is(":hidden")) {/* not in mobile views */
+    return;
+  }
 
-  const DEFAULT = topbarTitle.text().trim();
-
-  let title = (postTitle.length > 0) ?
-    postTitle.text().trim() : $("h1").text().trim();
+  const defaultTitleText = $topbarTitle.text().trim();
+  let pageTitleText = $pageTitle.text().trim();
+  let hasScrolled = false;
+  let lastScrollTop = 0;
 
   if ($("#page-category").length || $("#page-tag").length) {
     /* The title in Category or Tag page will be "<title> <count_of_posts>" */
-    if (/\s/.test(title)) {
-      title = title.replace(/[0-9]/g, "").trim();
+    if (/\s/.test(pageTitleText)) {
+      pageTitleText = pageTitleText.replace(/[0-9]/g, "").trim();
     }
   }
 
-  /* Replace topbar title while scroll screens. */
-  $(window).scroll(function () {
-    if ($("#post-list").length /* in Home page */
-      || postTitle.is(":hidden") /* is tab pages */
-      || topbarTitle.is(":hidden") /* not mobile screens */
-      || $("#sidebar.sidebar-expand").length) { /* when the sidebar trigger is clicked */
-      return false;
+  // When the page is scrolled down and then refreshed, the topbar title needs to be initialized
+  if ($pageTitle.offset().top < $(window).scrollTop()) {
+    $topbarTitle.text(pageTitleText);
+  }
+
+  let options = {
+    rootMargin: '-48px 0px 0px 0px', // 48px equals to the topbar height (3rem)
+    threshold: [0, 1]
+  };
+
+  let observer = new IntersectionObserver((entries) => {
+    if (!hasScrolled) {
+      hasScrolled = true;
+      return;
     }
 
-    if ($(this).scrollTop() >= 95) {
-      if (topbarTitle.text() !== title) {
-        topbarTitle.text(title);
+    let curScrollTop = $(window).scrollTop();
+    let isScrollDown = lastScrollTop < curScrollTop;
+    lastScrollTop = curScrollTop;
+    let heading = entries[0];
+
+    if (isScrollDown) {
+      if (heading.intersectionRatio === 0) {
+        $topbarTitle.text(pageTitleText);
       }
     } else {
-      if (topbarTitle.text() !== DEFAULT) {
-        topbarTitle.text(DEFAULT);
+      if (heading.intersectionRatio === 1) {
+        $topbarTitle.text(defaultTitleText);
       }
     }
-  });
+  }, options);
 
-  /* Click title remove hover effect. */
-  topbarTitle.click(function() {
+  observer.observe(document.querySelector(titleSelector));
+
+  /* Click title will scroll to top */
+  $topbarTitle.click(function() {
     $("body,html").animate({scrollTop: 0}, 800);
   });
 

_javascript/copyright

@@ -1,5 +1,5 @@
 /*!
- * Chirpy v4.2.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v5.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */

_javascript/utils/clipboard.js

@@ -1,5 +1,5 @@
 /*
- * Initial the clipboard.js object
+ * Clipboard functions
  *
  * Dependencies:
  *   - popper.js (https://github.com/popperjs/popper-core)
@@ -9,17 +9,41 @@
 $(function() {
   const btnSelector = '.code-header>button';
   const ICON_SUCCESS = 'fas fa-check';
-  const ATTR_LOCKED = 'locked';
+  const ATTR_TIMEOUT = 'timeout';
+  const ATTR_TITLE_SUCCEED = 'data-title-succeed';
+  const ATTR_TITLE_ORIGIN = 'data-original-title';
   const TIMEOUT = 2000; // in milliseconds
 
+  function isLocked(node) {
+    if ($(node)[0].hasAttribute(ATTR_TIMEOUT)) {
+      let timeout = $(node).attr(ATTR_TIMEOUT);
+      if (Number(timeout) > Date.now()) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  function lock(node) {
+    $(node).attr(ATTR_TIMEOUT, Date.now() + TIMEOUT);
+  }
+
+  function unlock(node) {
+    $(node).removeAttr(ATTR_TIMEOUT);
+  }
+
+  /* --- Copy code block --- */
+
+  // Initial the clipboard.js object
   const clipboard = new ClipboardJS(btnSelector, {
     target(trigger) {
-      return trigger.parentNode.nextElementSibling;
+      let codeBlock = trigger.parentNode.nextElementSibling;
+      return codeBlock.querySelector('code .rouge-code');
     }
   });
 
   $(btnSelector).tooltip({
-    trigger: 'click',
+    trigger: 'hover',
     placement: 'left'
   });
 
@@ -30,51 +54,79 @@ $(function() {
 
   const ICON_DEFAULT = getIcon(btnSelector);
 
-  function setTooltip(btn) {
-    $(btn).tooltip('hide')
-      .tooltip('show');
+  function showTooltip(btn) {
+    const succeedTitle = $(btn).attr(ATTR_TITLE_SUCCEED);
+    $(btn).attr(ATTR_TITLE_ORIGIN, succeedTitle).tooltip('show');
   }
 
   function hideTooltip(btn) {
-    setTimeout(function() {
-      $(btn).tooltip('hide');
-    }, TIMEOUT);
+    $(btn).tooltip('hide').removeAttr(ATTR_TITLE_ORIGIN);
   }
 
   function setSuccessIcon(btn) {
     let btnNode = $(btn);
     let iconNode = btnNode.children();
-    btnNode.attr(ATTR_LOCKED, true);
     iconNode.attr('class', ICON_SUCCESS);
   }
 
   function resumeIcon(btn) {
     let btnNode = $(btn);
     let iconNode = btnNode.children();
-
-    setTimeout(function() {
-      btnNode.removeAttr(ATTR_LOCKED);
-      iconNode.attr('class', ICON_DEFAULT);
-    }, TIMEOUT);
-  }
-
-  function isLocked(btn) {
-    let locked = $(btn).attr(ATTR_LOCKED);
-    return locked === 'true';
+    iconNode.attr('class', ICON_DEFAULT);
   }
 
   clipboard.on('success', (e) => {
     e.clearSelection();
 
-    if (isLocked(e.trigger)) {
+    const trigger = e.trigger;
+    if (isLocked(trigger)) {
       return;
     }
 
-    setTooltip(e.trigger);
-    hideTooltip(e.trigger);
+    setSuccessIcon(trigger);
+    showTooltip(trigger);
+    lock(trigger);
 
-    setSuccessIcon(e.trigger);
-    resumeIcon($(e.trigger));
+    setTimeout(() => {
+      hideTooltip(trigger);
+      resumeIcon(trigger);
+      unlock(trigger);
+    }, TIMEOUT);
+
+  });
+
+  /* --- Post link sharing --- */
+
+  $('#copy-link').click((e) => {
+
+    let target = $(e.target);
+
+    if (isLocked(target)) {
+      return;
+    }
+
+    // Copy URL to clipboard
+
+    const url = window.location.href;
+    const $temp = $("<input>");
+
+    $("body").append($temp);
+    $temp.val(url).select();
+    document.execCommand("copy");
+    $temp.remove();
+
+    // Switch tooltip title
+
+    const defaultTitle = target.attr(ATTR_TITLE_ORIGIN);
+    const succeedTitle = target.attr(ATTR_TITLE_SUCCEED);
+
+    target.attr(ATTR_TITLE_ORIGIN, succeedTitle).tooltip('show');
+    lock(target);
+
+    setTimeout(() => {
+      target.attr(ATTR_TITLE_ORIGIN, defaultTitle);
+      unlock(target);
+    }, TIMEOUT);
 
   });
 

_javascript/utils/locale-datetime.js

@@ -0,0 +1,20 @@
+/**
+ * Update month/day to locale datetime
+ *
+ * Requirement: <https://github.com/iamkun/dayjs>
+ */
+
+$(function() {
+  dayjs.locale(LocaleHelper.locale());
+  dayjs.extend(window.dayjs_plugin_localizedFormat);
+
+  $(`[${LocaleHelper.attrTimestamp()}]`).each(function () {
+    const date = dayjs.unix(LocaleHelper.getTimestamp($(this)));
+    const df = LocaleHelper.getDateFormat($(this));
+    const text = date.format(df);
+
+    $(this).text(text);
+    $(this).removeAttr(LocaleHelper.attrTimestamp());
+    $(this).removeAttr(LocaleHelper.attrDateFormat());
+  });
+});

_javascript/utils/smooth-scroll.js

@@ -8,74 +8,89 @@
 */
 
 $(function() {
+  const $topbarTitle = $("#topbar-title");
+  const REM = 16; // in pixels
+  const ATTR_SCROLL_FOCUS = "scroll-focus";
+
   $("a[href*='#']")
     .not("[href='#']")
     .not("[href='#0']")
     .click(function(event) {
+      if (this.pathname.replace(/^\//, "") !==
+            location.pathname.replace(/^\//, "")) {
+        return;
+      }
 
-      if (this.pathname.replace(/^\//, "") === location.pathname.replace(/^\//, "")) {
-        if (location.hostname === this.hostname) {
+      if (location.hostname !== this.hostname) {
+        return;
+      }
 
-          const REM = 16; /* 16px */
+      const hash = decodeURI(this.hash);
+      let toFootnoteRef = RegExp(/^#fnref:/).test(hash);
+      let toFootnote = toFootnoteRef ? false : RegExp(/^#fn:/).test(hash);
+      let selector = hash.includes(":") ? hash.replace(/\:/g, "\\:") : hash;
+      let $target = $(selector);
 
-          const hash = decodeURI(this.hash);
-          let isFnRef = RegExp(/^#fnref:/).test(hash);
-          let isFn = RegExp(/^#fn:/).test(hash);
-          let selector = hash.includes(":") ? hash.replace(/\:/, "\\:") : hash;
-          let target = $(selector);
+      let isMobileViews = $topbarTitle.is(":visible");
+      let isPortrait = $(window).width() < $(window).height();
 
-          if (target.length) {
-            event.preventDefault();
+      if (typeof $target === "undefined") {
+        return;
+      }
 
-            if (history.pushState) { /* add hash to URL */
-              history.pushState(null, null, hash);
-            }
+      event.preventDefault();
 
-            let curOffset = $(this).offset().top;
-            let destOffset = target.offset().top;
-            const scrollUp = (destOffset < curOffset);
-            const topbarHeight = $("#topbar-wrapper").outerHeight();
+      if (history.pushState) { /* add hash to URL */
+        history.pushState(null, null, hash);
+      }
 
-            if (scrollUp && isFnRef) {
-              /* Avoid the top-bar covering `fnref` when scrolling up
-                because `fnref` has no `%anchor`(see: module.scss) style. */
-              destOffset -= (topbarHeight + REM / 2);
-            }
+      let curOffset = $(window).scrollTop();
+      let destOffset = $target.offset().top -= REM / 2;
 
-            $("html,body").animate({
-              scrollTop: destOffset
-            }, 800, () => {
+      if (destOffset < curOffset) { // scroll up
+        ScrollHelper.hideTopbar();
+        ScrollHelper.addScrollUpTask();
 
-              const $target = $(target);
-              $target.focus();
+        if (isMobileViews && isPortrait) {
+          destOffset -= ScrollHelper.getTopbarHeight();
+        }
 
-              const SCROLL_MARK = "scroll-focus";
-
-              /* clean up old scroll mark */
-              if ($(`[${SCROLL_MARK}=true]`).length) {
-                $(`[${SCROLL_MARK}=true]`).attr(SCROLL_MARK, false);
-              }
-
-              /* Clean :target links */
-              if ($(":target").length) { /* element that visited by the URL with hash */
-                $(":target").attr(SCROLL_MARK, false);
-              }
-
-              /* set scroll mark to footnotes */
-              if (isFn || isFnRef) {
-                $target.attr(SCROLL_MARK, true);
-              }
-
-              if ($target.is(":focus")) { /* Checking if the target was focused */
-                return false;
-              } else {
-                $target.attr("tabindex", "-1"); /* Adding tabindex for elements not focusable */
-                $target.focus(); /* Set focus again */
-              }
-            });
-          }
+      } else { // scroll down
+        if (isMobileViews && isPortrait) {
+          destOffset -= ScrollHelper.getTopbarHeight();
         }
       }
 
+      $("html").animate({
+        scrollTop: destOffset
+      }, 500, () => {
+        $target.focus();
+
+        /* clean up old scroll mark */
+        if ($(`[${ATTR_SCROLL_FOCUS}=true]`).length) {
+          $(`[${ATTR_SCROLL_FOCUS}=true]`).attr(ATTR_SCROLL_FOCUS, false);
+        }
+
+        /* Clean :target links */
+        if ($(":target").length) { /* element that visited by the URL with hash */
+          $(":target").attr(ATTR_SCROLL_FOCUS, false);
+        }
+
+        /* set scroll mark to footnotes */
+        if (toFootnote || toFootnoteRef) {
+          $target.attr(ATTR_SCROLL_FOCUS, true);
+        }
+
+        if ($target.is(":focus")) { /* Checking if the target was focused */
+          return false;
+        } else {
+          $target.attr("tabindex", "-1"); /* Adding tabindex for elements not focusable */
+          $target.focus(); /* Set focus again */
+        }
+
+        if (ScrollHelper.hasScrollUpTask()) {
+          ScrollHelper.popScrollUpTask();
+        }
+      });
     }); /* click() */
 });

_javascript/utils/timeago.js

@@ -1,73 +1,87 @@
-/*
+/**
  * Calculate the Timeago
+ *
+ * Requirement: <https://github.com/iamkun/dayjs>
  */
 
 $(function() {
+  const attrTimestamp = LocaleHelper.attrTimestamp();
+  const attrCapitalize = 'data-capitalize';
+  const $timeago = $(".timeago");
 
-  const timeagoElem = $(".timeago");
-
-  let toRefresh = timeagoElem.length;
-
+  let timeagoTasks = $timeago.length;
   let intervalId = void 0;
 
-  const dPrompt = $("meta[name=day-prompt]").attr("content");
-  const hrPrompt = $("meta[name=hour-prompt]").attr("content");
-  const minPrompt = $("meta[name=minute-prompt]").attr("content");
-  const justnowPrompt = $("meta[name=justnow-prompt]").attr("content");
+  dayjs.locale(LocaleHelper.locale());
+  dayjs.extend(window.dayjs_plugin_relativeTime);
+  dayjs.extend(window.dayjs_plugin_localizedFormat);
 
-  function timeago(isoDate, dateStr) {
-    let now = new Date();
-    let past = new Date(isoDate);
+  function relativetime($elem) {
+    const now = dayjs();
+    const past = dayjs.unix(LocaleHelper.getTimestamp($elem));
 
-    if (past.getFullYear() !== now.getFullYear()
-        || past.getMonth() !== now.getMonth()) {
-      return dateStr;
+    let diffMonth = now.diff(past, 'month', true);
+    if (diffMonth > 10) { // year ago range: 11 months to 17months
+      $elem.removeAttr(attrTimestamp);
+      return past.format('ll'); // see: https://day.js.org/docs/en/display/format#list-of-localized-formats
     }
 
-    let seconds = Math.floor((now - past) / 1000);
-
-    let day = Math.floor(seconds / 86400);
-    if (day >= 1) {
-      toRefresh -= 1;
-      return ` ${day} ${dPrompt}`;
+    let diffMinute = now.diff(past, 'minute', true);
+    if (diffMinute > 44) { // an hour ago range: 45 to 89 minutes
+      $elem.removeAttr(attrTimestamp);
     }
 
-    let hour = Math.floor(seconds / 3600);
-    if (hour >= 1) {
-      return ` ${hour} ${hrPrompt}`;
-    }
-
-    let minute = Math.floor(seconds / 60);
-    if (minute >= 1) {
-      return ` ${minute} ${minPrompt}`;
-    }
-
-    return justnowPrompt;
+    return past.fromNow();
   }
 
   function updateTimeago() {
-    $(".timeago").each(function() {
-      if ($(this).children("i").length > 0) {
-        let dateStr = $(this).clone().children().remove().end().text();
-        let node = $(this).children("i");
-        let iosDate = node.text(); /* ISO Date: "YYYY-MM-DDTHH:MM:SSZ" */
-        $(this).text(timeago(iosDate, dateStr));
-        $(this).append(node);
+    $timeago.each(function() {
+      if (typeof $(this).attr(attrTimestamp) === 'undefined') {
+        timeagoTasks -= 1;
+        return;
+      }
+
+      let relativeTime = relativetime($(this));
+      const capitalize = $(this).attr(attrCapitalize);
+      if (typeof capitalize !== 'undefined' && capitalize === 'true') {
+        relativeTime = relativeTime.replace(/^\w/, (c) => c.toUpperCase());
+      }
+
+      if ($(this).text() !== relativeTime) {
+        $(this).text(relativeTime);
       }
     });
 
-    if (toRefresh === 0 && typeof intervalId !== "undefined") {
+    if (timeagoTasks === 0 && typeof intervalId !== "undefined") {
       clearInterval(intervalId); /* stop interval */
     }
-    return toRefresh;
+
+    return timeagoTasks;
   }
 
-  if (toRefresh === 0) {
+  function setupTooltips() {
+    $timeago.each(function() {
+      const tooltip = $(this).attr('data-toggle');
+      if (typeof tooltip === 'undefined' || tooltip !== 'tooltip') {
+        return;
+      }
+
+      const df = $(this).attr('data-tooltip-df');
+      const ts = LocaleHelper.getTimestamp($(this));
+      const dateStr = dayjs.unix(ts).format(df);
+      $(this).attr('data-original-title', dateStr);
+      $(this).removeAttr('data-tooltip-df');
+    });
+  }
+
+  if (timeagoTasks === 0) {
     return;
   }
 
-  if (updateTimeago() > 0) { /* run immediately */
-    intervalId = setInterval(updateTimeago, 60000); /* run every minute */
+  setupTooltips();
+
+  if (updateTimeago()) { /* run immediately */
+    intervalId = setInterval(updateTimeago, 60 * 1000); /* run every minute */
   }
 
 });

_layouts/archives.html

@@ -3,8 +3,6 @@ layout: page
 # The Archives of posts.
 ---
 
-{% include lang.html %}
-
 <div id="archives" class="pl-xl-2">
 
 {% for post in site.posts %}
@@ -18,11 +16,11 @@ layout: page
   {% endif %}
     <li>
       <div>
-        {% capture this_day %}{{ post.date | date: "%d" }}{% endcapture %}
-        {% capture _mth_df %}{{ site.data.locales[lang].date_format.post.archive_month }}{% endcapture %}
-        {% capture this_month %}{{ post.date | date: _mth_df }}{% endcapture %}
-        <span class="date day">{{ this_day }}</span>
-        <span class="date month small text-muted">{% include no-zero-date.html date_str=this_month %}</span>
+        {% assign ts = post.date | date: '%s' %}
+        <span class="date day" data-ts="{{ ts }}" data-df="DD">{{ post.date | date: "%d" }}</span>
+        <span class="date month small text-muted" data-ts="{{ ts }}" data-df="MMM">
+          {{ post.date | date: '%m' }}
+        </span>
         <a href="{{ post.url | relative_url }}">{{ post.title }}</a>
       </div>
     </li>

_layouts/category.html

@@ -3,8 +3,6 @@ layout: page
 # The Category layout
 ---
 
-{% include lang.html %}
-
 <div id="page-category">
   <h1 class="pl-lg-2">
     <i class="far fa-folder-open fa-fw text-muted"></i>
@@ -13,13 +11,13 @@ layout: page
   </h1>
 
   <ul class="post-content pl-0">
-    {% assign post_df = site.data.locales[lang].date_format.post.long %}
-
     {% for post in page.posts %}
     <li class="d-flex justify-content-between pl-md-3 pr-md-3">
       <a href="{{ post.url | relative_url }}">{{ post.title }}</a>
       <span class="dash flex-grow-1"></span>
-      <span class="text-muted small">{{ post.date | date: post_df }}</span>
+      <span class="text-muted small" data-ts="{{ post.date | date: '%s' }}" data-df="ll">
+        {{ post.date | date: '%Y-%m-%d' }}
+      </span>
     </li>
     {% endfor %}
   </ul>

_layouts/default.html

@@ -7,17 +7,23 @@ layout: compress
 
 {% include lang.html %}
 
+{% include assets-origin.html %}
+
 {% capture prefer_mode %}
   {% if site.theme_mode %}
-    mode="{{ site.theme_mode }}"
+    data-mode="{{ site.theme_mode }}"
   {% endif %}
 {% endcapture %}
 
-<html lang="{{ site.lang }}" {{ prefer_mode }}>
+<html lang="{{ site.lang }}"{{ prefer_mode }}>
 
   {% include head.html %}
 
-  <body data-spy="scroll" data-target="#toc">
+  {% unless site.theme_mode %}
+    {% include mode-toggle.html %}
+  {% endunless %}
+
+  <body data-spy="scroll" data-target="#toc" data-topbar-visible="true">
 
     {% include sidebar.html %}
 
@@ -26,7 +32,7 @@ layout: compress
     <div id="main-wrapper">
       <div id="main">
 
-        {% include refactor-content.html content=content %}
+        {{ content }}
 
         {% include footer.html %}
 

_layouts/home.html

@@ -6,7 +6,7 @@ layout: page
 {% include lang.html %}
 
 {% assign pinned = site.posts | where: "pin", "true" %}
-{% assign default = site.posts | where_exp: "item", "item.pin != true" %}
+{% assign default = site.posts | where_exp: "item", "item.pin != true and item.hidden != true" %}
 
 {% assign posts = "" | split: "" %}
 
@@ -53,27 +53,30 @@ layout: page
     <div class="post-content">
       <p>
         {% include no-linenos.html content=post.content %}
-        {{ content | markdownify | strip_html | truncate: 200 }}
+        {{ content | markdownify | strip_html | truncate: 200 | escape }}
       </p>
     </div>
 
-    <div class="post-meta text-muted d-flex justify-content-between">
+    <div class="post-meta text-muted d-flex">
 
-      <div>
+      <div class="mr-auto">
         <!-- posted date -->
         <i class="far fa-calendar fa-fw"></i>
-        {% include timeago.html date=post.date tooltip=true %}
+        {% include timeago.html date=post.date tooltip=true capitalize=true %}
 
         <!-- time to read -->
         <i class="far fa-clock fa-fw"></i>
         {% include read-time.html content=post.content %}
 
-        <!-- page views -->
-        {% if site.google_analytics.pv.proxy_endpoint or site.google_analytics.pv.cache_path %}
-        <i class="far fa-eye fa-fw"></i>
-        <span id="pv_{{-post.title-}}" class="pageviews">
-          <i class="fas fa-spinner fa-spin fa-fw"></i>
-        </span>
+        <!-- categories -->
+        {% if post.categories.size > 0 %}
+          <i class="far fa-folder-open fa-fw"></i>
+          <span>
+          {% for category in post.categories %}
+            {{ category }}
+            {%- unless forloop.last -%},{%- endunless -%}
+          {% endfor %}
+          </span>
         {% endif %}
       </div>
 

_layouts/page.html

@@ -1,41 +1,66 @@
 ---
 layout: default
-# The page layout
 ---
 
+{% include lang.html %}
+
+{% include assets-origin.html %}
+
 <div class="row">
-  <div class="col-12 col-lg-11 col-xl-8">
-    <div id="page" class="post pb-5 pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4 mb-md-4">
-    {% if page.dynamic_title %}
+
+  <!-- core -->
+  <div id="core-wrapper" class="col-12 col-lg-11 col-xl-8">
+    <div class="post pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4">
+
+    {% capture _content %}
+      {% if layout.refactor or page.layout == 'page' %}
+        {% include refactor-content.html content=content %}
+      {% else %}
+        {{ content }}
+      {% endif %}
+    {% endcapture %}
+
+    {% if page.layout == 'page' or page.collection == 'tabs'%}
+      {% assign title = site.data.locales[lang].tabs[tab_key] | default: page.title %}
       <h1 class="dynamic-title">
-        {% if page.collection == 'tabs' %}
-          {%- capture tab_key -%}{{ page.url | split: '/' }}{%- endcapture -%}
-          {{- site.data.locales[lang].tabs[tab_key] | default: page.title -}}
-        {% else %}
-          {{- page.title -}}
-        {% endif %}
+        {{ title }}
       </h1>
       <div class="post-content">
-        {{ content }}
+        {{ _content }}
       </div>
     {% else %}
-      {{ content }}
+      {{ _content }}
     {% endif %}
-    </div> <!-- #page -->
-  </div><!-- .col-12 -->
 
-  {% include panel.html %}
+    </div>
+  </div> <!-- #core-wrapper -->
+
+  <!-- pannel -->
+  <div id="panel-wrapper" class="col-xl-3 pl-2 text-muted">
+
+    <div class="access">
+      {% include update-list.html %}
+      {% include trending-tags.html %}
+    </div>
+
+    {% for _include in layout.pannel_includes %}
+      {% assign _include_path = _include | append: '.html' %}
+      {% include {{ _include_path }} %}
+    {% endfor %}
+  </div>
 
 </div>
 
-{% if site.disqus.comments and page.comments %}
+<!-- tail -->
+{% if layout.tail_includes %}
 <div class="row">
   <div class="col-12 col-lg-11 col-xl-8">
-    <div class="pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4">
-
-    {% include disqus.html %}
-
-    </div> <!-- .pl-1 pr-1 -->
-  </div> <!-- .col-12 -->
+    <div id="tail-wrapper" class="pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4">
+      {% for _include in layout.tail_includes %}
+        {% assign _include_path = _include | append: '.html' %}
+        {% include {{ _include_path }} %}
+      {% endfor %}
+    </div>
+  </div>
 </div> <!-- .row -->
 {% endif %}

_layouts/post.html

@@ -1,143 +1,144 @@
 ---
-layout: default
-# The posts' layout
+layout: page
+refactor: true
+pannel_includes:
+  - toc
+tail_includes:
+  - related-posts
+  - post-nav
+  - comments
 ---
 
 {% include lang.html %}
 
-<div class="row">
+{% if page.image.src %}
+  {% capture bg %}
+    {% unless page.image.no_bg %}{{ 'bg' }}{% endunless %}
+  {% endcapture %}
+  <img src="{{ page.image.src }}" class="preview-img {{ bg | strip }}"
+      alt="{{ page.image.alt | default: "Preview Image" }}"
 
-  <div id="post-wrapper" class="col-12 col-lg-11 col-xl-8">
+      {% if page.image.width %}
+        width="{{ page.image.width }}"
+      {% elsif page.image.w %}
+        width="{{ page.image.w }}"
+      {% endif %}
 
-    <div class="post pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4">
+      {% if page.image.height %}
+        height="{{ page.image.height }}"
+      {% elsif page.image.h %}
+        height="{{ page.image.h }}"
+      {% endif %}>
+{% endif %}
 
-      <h1 data-toc-skip>{{ page.title }}</h1>
+<h1 data-toc-skip>{{ page.title }}</h1>
 
-      <div class="post-meta text-muted d-flex flex-column">
-        <!-- Published date and author -->
-        <div>
-          <span class="semi-bold">
-            {{ page.author | default: site.social.name }}
-          </span>
-          {% capture _preposition %}{{ site.data.locales[lang].post.published }}{% endcapture %}
-          {% include timeago.html date=page.date tooltip=true preposition=_preposition %}
-        </div>
+<div class="post-meta text-muted">
 
-        <div>
-          <!-- lastmod -->
-          {% if page.last_modified_at %}
-          <span>
-            {{ site.data.locales[lang].post.updated }}
-            {% include timeago.html date=page.last_modified_at class="lastmod" tooltip=true %}
-          </span>
-          {% endif %}
+  <!-- author -->
+  <div>
+    {% capture author_name %}{{ page.author.name | default: site.social.name }}{% endcapture %}
+    {% assign author_link = nil %}
 
-          <!-- read time -->
-          {% include read-time.html content=content prompt=true %}
-
-          <!-- page views -->
-          {% if site.google_analytics.pv.proxy_endpoint or site.google_analytics.pv.cache_path %}
-          <span id="pv" class="pageviews">
-            <i class="fas fa-spinner fa-spin fa-fw"></i>
-          </span>
-          {{ site.data.locales[lang].post.pageview_measure }}
-          {% endif %}
-
-        </div>
-
-      </div> <!-- .post-meta -->
-
-      <div class="post-content">
-
-        {% if page.image.src %}
-          <img src="{{ page.image.src }}"
-            class="preview-img"
-            alt="{{ page.image.alt | default: "Preview Image" }}"
-            {% if page.image.width %}width="{{ page.image.width }}"{% endif %}
-            {% if page.image.height %}height="{{ page.image.height }}"{% endif %}>
-        {% endif %}
-
-        {{ content }}
-
-      </div>
-
-      <div class="post-tail-wrapper text-muted">
-
-        <!-- categories -->
-        {% if page.categories.size > 0 %}
-
-        <div class="post-meta mb-3">
-          <i class="far fa-folder-open fa-fw mr-1"></i>
-          {% for category in page.categories %}
-            <a href='{{ site.baseurl }}/categories/{{ category | slugify | url_encode }}/'>{{ category }}</a>
-            {%- unless forloop.last -%}, {%- endunless -%}
-          {% endfor %}
-        </div>
-        {% endif %}
-
-        <!-- tags -->
-        {% if page.tags.size > 0 %}
-        <div class="post-tags">
-          <i class="fa fa-tags fa-fw mr-1"></i>
-          {% for tag in page.tags %}
-          <a href="{{ site.baseurl }}/tags/{{ tag | slugify | url_encode }}/"
-            class="post-tag no-text-decoration" >
-            {{- tag -}}
-          </a>
-          {% endfor %}
-          </div>
-        {% endif %}
-
-        <div class="post-tail-bottom
-          d-flex justify-content-between align-items-center mt-3 pt-5 pb-2">
-          <div class="license-wrapper">
-          {% if site.data.locales[lang].copyright.license.template %}
-            {% capture _replacement %}
-            <a href="{{ site.data.locales[lang].copyright.license.link }}">
-              {{ site.data.locales[lang].copyright.license.name }}
-            </a>
-            {% endcapture %}
-            {{ site.data.locales[lang].copyright.license.template | replace: ':LICENSE_NAME', _replacement }}
-          {% endif %}
-          </div>
-
-          {% include post-sharing.html %}
-
-        </div><!-- .post-tail-bottom -->
-
-      </div><!-- div.post-tail -->
-
-    </div> <!-- .post -->
-
-
-  </div> <!-- #post-wrapper -->
-
-  {% assign enable_toc = false %}
-
-  {% if site.toc and page.toc %}
-    {% if content contains '<h2' or content contains '<h3' %}
-      {% assign enable_toc = true %}
+    {% if page.author.link %}
+      {% assign author_link = page.author.link %}
+    {% elsif author_name == site.social.name %}
+      {% assign author_link = site.social.links[0] %}
     {% endif %}
+
+    {{ site.data.locales[lang].post.written_by }}
+    <em>
+      {% if author_link %}
+        <a href="{{ author_link }}">{{ author_name }}</a>
+      {% else %}
+        {{ author_name }}
+      {% endif %}
+    </em>
+  </div>
+
+  <div class="d-flex">
+    <div>
+      <!-- published date -->
+      <span>
+        {{ site.data.locales[lang].post.posted }}
+        {% include timeago.html date=page.date tooltip=true %}
+      </span>
+
+      <!-- lastmod date -->
+      {% if page.last_modified_at %}
+      <span>
+        {{ site.data.locales[lang].post.updated }}
+        {% include timeago.html date=page.last_modified_at tooltip=true %}
+      </span>
+      {% endif %}
+
+      <!-- read time -->
+      {% include read-time.html content=content prompt=true %}
+
+      <!-- page views -->
+      {% if site.google_analytics.pv.proxy_endpoint or site.google_analytics.pv.cache_path %}
+      <span>
+        <em id="pv" class="pageviews">
+          <i class="fas fa-spinner fa-spin fa-fw"></i>
+        </em>
+        {{ site.data.locales[lang].post.pageview_measure }}
+      </span>
+      {% endif %}
+    </div>
+
+  </div> <!-- .d-flex -->
+
+</div> <!-- .post-meta -->
+
+<div class="post-content">
+  {{ content }}
+</div>
+
+<div class="post-tail-wrapper text-muted">
+
+  <!-- categories -->
+  {% if page.categories.size > 0 %}
+  <div class="post-meta mb-3">
+    <i class="far fa-folder-open fa-fw mr-1"></i>
+    {% for category in page.categories %}
+      <a href='{{ site.baseurl }}/categories/{{ category | slugify | url_encode }}/'>{{ category }}</a>
+      {%- unless forloop.last -%}, {%- endunless -%}
+    {% endfor %}
+  </div>
   {% endif %}
 
-  {% include panel.html toc=enable_toc %}
+  <!-- tags -->
+  {% if page.tags.size > 0 %}
+  <div class="post-tags">
+    <i class="fa fa-tags fa-fw mr-1"></i>
+      {% for tag in page.tags %}
+      <a href="{{ site.baseurl }}/tags/{{ tag | slugify | url_encode }}/"
+          class="post-tag no-text-decoration" >
+        {{- tag -}}
+      </a>
+      {% endfor %}
+  </div>
+  {% endif %}
 
-</div> <!-- .row -->
+  <div class="post-tail-bottom
+    d-flex justify-content-between align-items-center mt-3 pt-5 pb-2">
+    <div class="license-wrapper">
 
-<div class="row">
-  <div class="col-12 col-lg-11 col-xl-8">
-    <div id="post-extend-wrapper" class="pl-1 pr-1 pl-sm-2 pr-sm-2 pl-md-4 pr-md-4">
+      {% if site.data.locales[lang].copyright.license.template %}
 
-    {% include related-posts.html %}
+        {% capture _replacement %}
+        <a href="{{ site.data.locales[lang].copyright.license.link }}">
+          {{ site.data.locales[lang].copyright.license.name }}
+        </a>
+        {% endcapture %}
 
-    {% include post-nav.html %}
+        {{ site.data.locales[lang].copyright.license.template | replace: ':LICENSE_NAME', _replacement }}
 
-    {% if site.disqus.comments and page.comments %}
-      {% include disqus.html %}
-    {% endif %}
+      {% endif %}
+    </div>
 
-    </div> <!-- #post-extend-wrapper -->
+    {% include post-sharing.html %}
 
-  </div> <!-- .col-* -->
+  </div><!-- .post-tail-bottom -->
 
-</div> <!-- .row -->
+</div><!-- div.post-tail-wrapper -->

_layouts/tag.html

@@ -3,8 +3,6 @@ layout: page
 # The layout for Tag page
 ---
 
-{% include lang.html %}
-
 <div id="page-tag">
   <h1 class="pl-lg-2">
     <i class="fa fa-tag fa-fw text-muted"></i>
@@ -12,13 +10,13 @@ layout: page
     <span class="lead text-muted pl-2">{{ page.posts | size }}</span>
   </h1>
   <ul class="post-content pl-0">
-    {% assign post_df = site.data.locales[lang].date_format.post.long %}
-
     {% for post in page.posts %}
     <li class="d-flex justify-content-between pl-md-3 pr-md-3">
       <a href="{{ post.url | relative_url }}">{{ post.title }}</a>
       <span class="dash flex-grow-1"></span>
-      <span class="text-muted small">{{ post.date | date: post_df }}</span>
+      <span class="text-muted small" data-ts="{{ post.date | date: '%s' }}" data-df="ll">
+        {{ post.date | date: '%Y-%m-%d' }}
+      </span>
     </li>
     {% endfor %}
   </ul>

_posts/2019-08-08-text-and-typography.md

@@ -1,15 +1,17 @@
 ---
 title: Text and Typography
-author: Cotes Chung
+author:
+  name: Cotes Chung
+  link: https://github.com/cotes2020
 date: 2019-08-08 11:33:00 +0800
 categories: [Blogging, Demo]
 tags: [typography]
 math: true
 mermaid: true
 image:
-  src: https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/commons/devices-mockup.png
-  width: 850
-  height: 585
+  src: /commons/devices-mockup.png
+  width: 800
+  height: 500
 ---
 
 This post is to show Markdown syntax rendering on [**Chirpy**](https://github.com/cotes2020/jekyll-theme-chirpy/fork), you can also use it as an example of writing. Now, let's start looking at text and typography.
@@ -52,8 +54,8 @@ Fluttering and dancing in the breeze.
 ### Unordered list
 
 - Chapter
-	- Section
-      - Paragraph
+  - Section
+    - Paragraph
 
 ### Task list
 
@@ -72,10 +74,23 @@ Sun
 Moon
 : the natural satellite of the earth, visible by reflected light from the sun
 
-
 ## Block Quote
 
-> This line to shows the Block Quote.
+> This line shows the _block quote_.
+
+## Prompts
+
+> An example showing the `tip` type prompt.
+{: .prompt-tip }
+
+> An example showing the `info` type prompt.
+{: .prompt-info }
+
+> An example showing the `warning` type prompt.
+{: .prompt-warning }
+
+> An example showing the `danger` type prompt.
+{: .prompt-danger }
 
 ## Tables
 
@@ -89,44 +104,42 @@ Moon
 
 <http://127.0.0.1:4000>
 
-
 ## Footnote
 
 Click the hook will locate the footnote[^footnote], and here is another footnote[^fn-nth-2].
 
-
 ## Images
 
 - Default (with caption)
 
-![Desktop View](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190808/mockup.png){: width="972" height="589" }
+![Desktop View](/posts/20190808/mockup.png){: width="972" height="589" }
 _Full screen width and center alignment_
 
 <br>
 
 - Shadow
 
-![Window shadow](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190808/window.png){: .shadow width="1548" height="864" style="max-width: 90%" }
+![Window shadow](/posts/20190808/window.png){: .shadow width="1548" height="864" style="max-width: 90%" }
 _shadow effect (visible in light mode)_
 
 <br>
 
 - Left aligned
 
-![Desktop View](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190808/mockup.png){: width="972" height="589" style="max-width: 70%" .normal}
+![Desktop View](/posts/20190808/mockup.png){: width="972" height="589" style="max-width: 70%" .normal}
 
 <br>
 
 - Float to left
 
-  ![Desktop View](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190808/mockup.png){: width="972" height="589" style="max-width: 200px" .left}
+  ![Desktop View](/posts/20190808/mockup.png){: width="972" height="589" style="max-width: 200px" .left}
   "A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space."
 
 <br>
 
 - Float to right
 
-  ![Desktop View](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190808/mockup.png){: width="972" height="589" style="max-width: 200px" .right}
+  ![Desktop View](/posts/20190808/mockup.png){: width="972" height="589" style="max-width: 200px" .right}
   "A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space."
 
 <br>
@@ -141,7 +154,6 @@ _shadow effect (visible in light mode)_
   cherry :active, c, after b a, 1d
 ```
 
-
 ## Mathematics
 
 The mathematics powered by [**MathJax**](https://www.mathjax.org/):
@@ -152,11 +164,13 @@ When $a \ne 0$, there are two solutions to $ax^2 + bx + c = 0$ and they are
 
 $$ x = {-b \pm \sqrt{b^2-4ac} \over 2a} $$
 
-
 ## Inline code
 
 This is an example of `Inline Code`.
 
+## Filepath
+
+Here is the `/path/to/the/file.extend`{: .filepath}.
 
 ## Code block
 

_posts/2019-08-08-write-a-new-post.md

@@ -1,15 +1,19 @@
 ---
 title: Writing a New Post
-author: Cotes Chung
+author:
+  name: Cotes Chung
+  link: https://github.com/cotes2020
 date: 2019-08-08 14:10:00 +0800
 categories: [Blogging, Tutorial]
 tags: [writing]
 render_with_liquid: false
 ---
 
+This post will guide you how to write a post on _Chirpy_ theme. Even if you have previous experience with Jekyll, this article is worth reading, because many features require specific variables to be set.
+
 ## Naming and Path
 
-Create a new file named `YYYY-MM-DD-TITLE.EXTENSION` and put it in the `_posts/` of the root directory. Please note that the `EXTENSION` must be one of `md` and `markdown`.
+Create a new file named `YYYY-MM-DD-TITLE.EXTENSION`{: .filepath} and put it in the `_posts`{: .filepath} of the root directory. Please note that the `EXTENSION`{: .filepath} must be one of `md`{: .filepath} and `markdown`{: .filepath}. If you want to save time of creating files, please consider using the plugin [`Jekyll-Compose`](https://github.com/jekyll/jekyll-compose) to accomplish this.
 
 ## Front Matter
 
@@ -24,24 +28,39 @@ tags: [TAG]     # TAG names should always be lowercase
 ---
 ```
 
-> **Note**: The posts' ***layout*** has been set to `post` by default, so there is no need to add the variable ***layout*** in Front Matter block.
+> The posts' _layout_ has been set to `post` by default, so there is no need to add the variable _layout_ in the Front Matter block.
+{: .prompt-tip }
 
-### Timezone of date
+### Timezone of Date
 
-In order to accurately record the release date of a post, you should not only setup the `timezone` of `_config.yml` but also provide the the post's timezone in field `date` of its Front Matter block. Format: `+/-TTTT`, e.g. `+0800`.
+In order to accurately record the release date of a post, you should not only set up the `timezone` of `_config.yml`{: .filepath} but also provide the post's timezone in variable `date` of its Front Matter block. Format: `+/-TTTT`, e.g. `+0800`.
 
 ### Categories and Tags
 
-The `categories` of each post is designed to contain up to two elements, and the number of elements in `tags` can be zero to infinity. For instance:
+The `categories` of each post are designed to contain up to two elements, and the number of elements in `tags` can be zero to infinity. For instance:
 
 ```yaml
+---
 categories: [Animal, Insect]
 tags: [bee]
+---
+```
+
+### Author Information
+
+The author information of the post usually does not need to be filled in the _Front Matter_ , they will be obtained from variables `social.name` and the first entry of `social.links` of the configuration file by default. But you can also override it as follows:
+
+```yaml
+---
+author:
+  name: Full Name
+  link: https://example.com
+---
 ```
 
 ## Table of Contents
 
-By default, the **T**able **o**f **C**ontents (TOC) is displayed on the right panel of the post. If you want to turn it off globally, go to `_config.yml` and set the value of variable `toc` to `false`. If you want to turn off TOC for specific post, add the following to post's [Front Matter](https://jekyllrb.com/docs/front-matter/):
+By default, the **T**able **o**f **C**ontents (TOC) is displayed on the right panel of the post. If you want to turn it off globally, go to `_config.yml`{: .filepath} and set the value of variable `toc` to `false`. If you want to turn off TOC for a specific post, add the following to the post's [Front Matter](https://jekyllrb.com/docs/front-matter/):
 
 ```yaml
 ---
@@ -51,7 +70,9 @@ toc: false
 
 ## Comments
 
-Similar to TOC, the [Disqus](https://disqus.com/) comments is loaded by default in each post, and the global switch is defined by variable `comments` in file `_config.yml` . If you want to close the comment for specific post, add the following to the **Front Matter** of the post:
+The global switch of comments is defined by variable `comments.active` in the file `_config.yml`{: .filepath}. After selecting a comment system for this variable, comments will be turned on for all posts.
+
+If you want to close the comment for a specific post, add the following to the **Front Matter** of the post:
 
 ```yaml
 ---
@@ -79,28 +100,11 @@ mermaid: true
 ---
 ```
 
-Then you can use it like other markdown language: surround the graph code with ```` ```mermaid ```` and ```` ``` ````.
+Then you can use it like other markdown languages: surround the graph code with ```` ```mermaid ```` and ```` ``` ````.
 
 ## Images
 
-### Preview image
-
-If you want to add an image to the top of the post contents, specify the attribute `src`, `width`, `height` and `alt` for the image:
-
-```yaml
----
-image:
-  src: /path/to/image/file
-  width: 1000   # in pixels
-  height: 400   # in pixels
-  alt: image alternative text
----
-```
-
-Except for `alt`, all other options are necessary, especially the `width` and `height`, which are related to user experience and web page loading performance. Later section ["Image size"](#image-size) will also mention this.
-
-
-### Image caption
+### Caption
 
 Add italics to the next line of an image，then it will become the caption and appear at the bottom of the image:
 
@@ -110,7 +114,7 @@ _Image Caption_
 ```
 {: .nolineno}
 
-### Image size
+### Size
 
 In order to prevent the page content layout from shifting when the image is loaded, we should set the width and height for each image:
 
@@ -119,9 +123,19 @@ In order to prevent the page content layout from shifting when the image is load
 ```
 {: .nolineno}
 
-### Image position
+Starting from _Chirpy v5.0.0_, `height` and `width` support abbreviations (`height` → `h`, `width` → `w`). The following example has the same effect as the above:
 
-By default, the image is centered, but you can specify the position by using one of class `normal` , `left` and `right`. For example:
+```markdown
+![Desktop View](/assets/img/sample/mockup.png){: w="700" h="400" }
+```
+{: .nolineno}
+
+### Position
+
+By default, the image is centered, but you can specify the position by using one of the classes `normal`, `left`, and `right`.
+
+> Once the position is specified, the image caption should not be added.
+{: .prompt-warning }
 
 - **Normal position**
 
@@ -146,9 +160,7 @@ By default, the image is centered, but you can specify the position by using one
   ```
   {: .nolineno}
 
-> **Limitation**: Once you specify the position of an image, it is forbidden to add the image caption.
-
-### Image shadow
+### Shadow
 
 The screenshots of the program window can be considered to show the shadow effect, and the shadow will be visible in the `light` mode:
 
@@ -159,14 +171,14 @@ The screenshots of the program window can be considered to show the shadow effec
 
 ### CDN URL
 
-If you host the images on the CDN, you can save the time of repeatedly writing the CDN url by assigning the variable `img_cdn` of `_config.yml` file:
+If you host the images on the CDN, you can save the time of repeatedly writing the CDN URL by assigning the variable `img_cdn` of `_config.yml`{: .filepath} file:
 
 ```yaml
 img_cdn: https://cdn.com
 ```
 {: file='_config.yml' .nolineno}
 
-Once `img_cdn` is assigned, the CDN url will be added to the path of all images (images of site avatar and posts) starting with `/`.
+Once `img_cdn` is assigned, the CDN URL will be added to the path of all images (images of site avatar and posts) starting with `/`.
 
 For instance, when using images:
 
@@ -182,6 +194,49 @@ The parsing result will automatically add the CDN prefix `https://cdn.com` befor
 ```
 {: .nolineno}
 
+### Image Path
+
+When a post contains many images, it will be a time-consuming task to repeatedly define the path of the images. To solve this, we can define this path in the YAML block of the post:
+
+```yml
+---
+img_path: /img/path/
+---
+```
+{: .nolineno }
+
+And then, the image source of Markdown can write the file name directly:
+
+```md
+![The flower](flower.png)
+```
+{: .nolineno }
+
+The output will be:
+
+```html
+<img src="/img/path/flower.png" alt="The flower">
+```
+{: .nolineno }
+
+### Preview Image
+
+If you want to add an image to the top of the post contents, specify the attribute `src`, `width`, `height`, and `alt` for the image:
+
+```yaml
+---
+image:
+  src: /path/to/image/file
+  width: 1000   # in pixels
+  height: 400   # in pixels
+  alt: image alternative text
+---
+```
+
+Except for `alt`, all other options are necessary, especially the `width` and `height`, which are related to user experience and web page loading performance. The above section "[Size](#size)" also mentions this.
+
+Starting from _Chirpy v5.0.0_, the attributes `height` and `width` can be abbreviated: `height` → `h`, `width` → `w`. In addition, the [`img_path`](#image-path) can also be passed to the preview image, that is, when it has been set, the  attribute `src` only needs the image file name.
+
 ## Pinned Posts
 
 You can pin one or more posts to the top of the home page, and the fixed posts are sorted in reverse order according to their release date. Enable by:
@@ -192,15 +247,43 @@ pin: true
 ---
 ```
 
-## Code Block
+## Prompts
+
+There are several types of prompts: `tip`, `info`, `warning`, and `danger`. They can be generated by adding the class `prompt-{type}` to the blockquote. For example, define a prompt of type `info` as follows:
+
+```md
+> Example line for prompt.
+{: .prompt-info }
+```
+{: .nolineno }
+
+## Syntax
+
+### Inline Code
+
+```md
+`inline code part`
+```
+{: .nolineno }
+
+### Filepath Hightlight
+
+```md
+`/path/to/a/file.extend`{: .filepath}
+```
+{: .nolineno }
+
+### Code Block
 
 Markdown symbols ```` ``` ```` can easily create a code block as follows:
 
+````md
 ```
 This is a plaintext code snippet.
 ```
+````
 
-### Specifying Language
+#### Specifying Language
 
 Using ```` ```{language} ```` you will get a code block with syntax highlight:
 
@@ -210,22 +293,23 @@ key: value
 ```
 ````
 
-> **Limination**: The Jekyll style `highlight` tag ais not compatible with this theme.
+> The Jekyll tag `{% highlight %}` is not compatible with this theme.
+{: .prompt-danger }
 
-### Line Number
+#### Line Number
 
-By default, all languages except `plaintext`, `console` and `terminal` will display line numbers. When you want to hide the line number of the code block, you can append `{: .nolineno}` at the next line:
+By default, all languages except `plaintext`, `console`, and `terminal` will display line numbers. When you want to hide the line number of a code block, add the class `nolineno` to it:
 
 ````markdown
 ```shell
 echo 'No more line numbers!'
 ```
-{: .nolineno}
+{: .nolineno }
 ````
 
-### Specifying the Filename
+#### Specifying the Filename
 
-You may have noticed that the code language will be displayed on the left side of the header of the code block. If you want to replace it with the file name, you can add the attribute `file` to achieve this:
+You may have noticed that the code language will be displayed at the top of the code block. If you want to replace it with the file name, you can add the attribute `file` to achieve this:
 
 ````markdown
 ```shell
@@ -234,7 +318,7 @@ You may have noticed that the code language will be displayed on the left side o
 {: file="path/to/file" }
 ````
 
-### Liquid Codes
+#### Liquid Codes
 
 If you want to display the **Liquid** snippet, surround the liquid code with `{% raw %}` and `{% endraw %}`:
 
@@ -253,4 +337,3 @@ Or adding `render_with_liquid: false` (Requires Jekyll 4.0 or higher) to the pos
 ## Learn More
 
 For more knowledge about Jekyll posts, visit the [Jekyll Docs: Posts](https://jekyllrb.com/docs/posts/).
-

_posts/2019-08-09-getting-started.md

@@ -1,6 +1,8 @@
 ---
 title: Getting Started
-author: Cotes Chung
+author:
+  name: Cotes Chung
+  link: https://github.com/cotes2020
 date: 2019-08-09 20:55:00 +0800
 categories: [Blogging, Tutorial]
 tags: [getting started]
@@ -9,60 +11,24 @@ pin: true
 
 ## Prerequisites
 
-Follow the [Jekyll Docs](https://jekyllrb.com/docs/installation/) to complete the installation of `Ruby`, `RubyGems`, `Jekyll` and `Bundler`. Please note that the version of `Ruby` must meet the requirements of the theme on [RubyGems.org](https://rubygems.org/gems/jekyll-theme-chirpy).
+Follow the instructions in the [Jekyll Docs](https://jekyllrb.com/docs/installation/) to complete the installation of `Ruby`, `RubyGems`, `Jekyll`, and `Bundler`. In addition, [Git](https://git-scm.com/) is also required to be installed.
 
 ## Installation
 
-There are two ways to get the theme:
+### Creating a New Site
 
-- **[Install from RubyGems](#install-from-rubygems)** - Easy to update, isolate irrelevant project files so you can focus on writing.
-- **[Fork on GitHub](#fork-on-github)** - Convenient for custom development, but difficult to update, only suitable for web developers.
+There are two ways to create a new repository for this theme:
 
-### Install from RubyGems
+- [**Using the Chirpy Starter**](#option-1-using-the-chirpy-starter) - Easy to upgrade, isolates irrelevant project files so you can focus on writing.
+- [**Forking on GitHub**](#option-2-forking-on-github) - Convenient for custom development, but difficult to upgrade. Unless you are familiar with Jekyll and are determined to tweak or contribute to this project, this approach is not recommended.
 
-Add this line to your Jekyll site's `Gemfile`:
+#### Option 1. Using the Chirpy Starter
 
-```ruby
-gem "jekyll-theme-chirpy"
-```
-{: .nolineno file='Gemfile' }
+Create a new repository from the [**Chirpy Starter**][use-starter] and name it `<GH_USERNAME>.github.io`, where `GH_USERNAME` represents your GitHub username.
 
-And add this line to your Jekyll site's `_config.yml`:
+#### Option 2. Forking on GitHub
 
-```yaml
-theme: jekyll-theme-chirpy
-```
-{: .nolineno file='_config.yml' }
-
-And then execute:
-
-```console
-$ bundle
-```
-
-Next, go to the installed local theme path:
-
-```console
-$ cd "$(bundle info --path jekyll-theme-chirpy)"
-```
-
-And then copy the critical files (for details, see [starter project][starter]) from the theme's gem to your Jekyll site.
-
-> ⚠️ **Watch out for duplicate files!**
->
-> If your Jekyll site is created by the `jekyll new` command, there will be `index.markdown` and `about.markdown` in the root directory of your site. Please be sure to remove them, otherwise they will overwrite the `index.html` and `_tabs/about.html` from this project, resulting in blank or messy pages.
-
-As an alternative, which we recommend, you can create a Jekyll site [**using the starter template**][use-starter] to save time copying files from the theme's gem. We've prepared everything you need there!
-
-### Fork on GitHub
-
-[Fork **Chirpy**](https://github.com/cotes2020/jekyll-theme-chirpy/fork) on GitHub and then clone your fork to local. (Please note that the default branch code is in development.  If you want the blog to be stable, please switch to the [latest tag](https://github.com/cotes2020/jekyll-theme-chirpy/tags) and start writing.)
-
-Install gem dependencies by:
-
-```console
-$ bundle
-```
+[Fork **Chirpy**](https://github.com/cotes2020/jekyll-theme-chirpy/fork) on GitHub and rename it to `<GH_USERNAME>.github.io`. Please note that the default branch code is in development.  If you want the site to be stable, please switch to the [latest tag][latest-tag] and start writing.
 
 And then execute:
 
@@ -70,24 +36,34 @@ And then execute:
 $ bash tools/init.sh
 ```
 
-> **Note**: If you don't plan to deploy your site on GitHub Pages, append parameter option `--no-gh` at the end of the above command.
+> If you don't want to deploy your site on GitHub Pages, append option `--no-gh` at the end of the above command.
+{: .prompt-info }
 
-What it does is:
+The above command will:
 
-1. Remove some files or directories from your repository:
-    - `.travis.yml`
-    - files under `_posts`
-    - folder `docs`
+1. Removes some files or directories from your repository:
+    - `.travis.yml`{: .filepath}
+    - files under `_posts`{: .filepath}
 
-2. If you use the `--no-gh` option, the directory `.github` will be deleted. Otherwise, setup the GitHub Action workflow by removing the extension `.hook` of `.github/workflows/pages-deploy.yml.hook`, and then remove the other files and directories in the folder `.github`.
+2. If the option `--no-gh` is provided, the directory `.github`{: .filepath} will be deleted. Otherwise, set up the GitHub Action workflow by removing the extension `.hook`{: .filepath} of `.github/workflows/pages-deploy.yml.hook`{: .filepath}, and then remove the other files and directories in the folder `.github`{: .filepath}.
 
-3. Automatically create a commit to save the changes.
+3. Removes item `Gemfile.lock` from `.gitignore`{: .filepath}.
+
+4. Creates a new commit to save the changes automatically.
+
+### Installing Dependencies
+
+Before running for the first time, go to the root directory of your site, and install dependencies as follows:
+
+```console
+$ bundle
+```
 
 ## Usage
 
 ### Configuration
 
-Update the variables of `_config.yml` as needed. Some of them are typical options:
+Update the variables of `_config.yml`{: .filepath} as needed. Some of them are typical options:
 
 - `url`
 - `avatar`
@@ -96,9 +72,15 @@ Update the variables of `_config.yml` as needed. Some of them are typical option
 
 ### Customing Stylesheet
 
-If you need to customize stylesheet, copy the theme's `assets/css/style.scss` to the same path on your Jekyll site, and then add the custom style at the end of the style file.
+If you need to customize the stylesheet, copy the theme's `assets/css/style.scss`{: .filepath} to the same path on your Jekyll site, and then add the custom style at the end of the style file.
 
-Starting from `v4.1.0`, if you want to overwrite the SASS variables defined in `_sass/addon/variables.scss`, create a new file `_sass/variables-hook.scss` and assign new values to the target variable in it.
+Starting from [`v4.1.0`][chirpy-4.1.0], if you want to overwrite the SASS variables defined in `_sass/addon/variables.scss`{: .filepath}, create a new file `_sass/variables-hook.scss`{: .filepath} and assign new values to the target variable in it.
+
+### Customing Static Assets
+
+Static assets configuration was introduced in version `5.1.0`. The CDN of the static assets is defined by file `_data/assets/cross_origin.yml`{: .filepath }, and you can replace some of them according to the network conditions in the region where your website is published.
+
+Also, if you'd like to self-host the static assets, please refer to the [_chirpy-static-assets_](https://github.com/cotes2020/chirpy-static-assets#readme).
 
 ### Running Local Server
 
@@ -110,55 +92,62 @@ $ bundle exec jekyll s
 
 Or run the site on Docker with the following command:
 
-```terminal
+```console
 $ docker run -it --rm \
     --volume="$PWD:/srv/jekyll" \
     -p 4000:4000 jekyll/jekyll \
     jekyll serve
 ```
 
-Open a browser and visit to _<http://localhost:4000>_.
+After a while, the local service will be published at _<http://127.0.0.1:4000>_.
 
-### Deployment
+## Deployment
 
-Before the deployment begins, checkout the file `_config.yml` and make sure the `url` is configured correctly. Furthermore, if you prefer the [**project site**](https://help.github.com/en/github/working-with-github-pages/about-github-pages#types-of-github-pages-sites) and don't use a custom domain, or you want to visit your website with a base URL on a web server other than **GitHub Pages**, remember to change the `baseurl` to your project name that starting with a slash, e.g, `/project-name`.
+Before the deployment begins, check out the file `_config.yml`{: .filepath} and make sure the `url` is configured correctly. Furthermore, if you prefer the [**project site**](https://help.github.com/en/github/working-with-github-pages/about-github-pages#types-of-github-pages-sites) and don't use a custom domain, or you want to visit your website with a base URL on a web server other than **GitHub Pages**, remember to change the `baseurl` to your project name that starts with a slash, e.g, `/project-name`.
 
 Now you can choose ONE of the following methods to deploy your Jekyll site.
 
-#### Deploy on GitHub Pages
+### Deploy by Using Github Actions
 
-For security reasons, GitHub Pages build runs on `safe` mode, which restricts us from using plugins to generate additional page files. Therefore, we can use **GitHub Actions** to build the site, store the built site files on a new branch, and use that branch as the source of the GH Pages service.
+For security reasons, GitHub Pages build runs on `safe` mode, which restricts us from using plugins to generate additional page files. Therefore, we can use **GitHub Actions** to build the site, store the built site files on a new branch, and use that branch as the source of the GitHub Pages service.
 
 Quickly check the files needed for GitHub Actions build:
 
-- Ensure your Jekyll site has the file `.github/workflows/pages-deploy.yml`. Otherwise, create a new one and fill in the contents of the [workflow file][workflow], and the value of the `on.push.branches` should be the same as your repo's default branch name.
-- Ensure your Jekyll site has file `tools/test.sh` and `tools/deploy.sh`. Otherwise, copy them from this repo to your Jekyll site.
+- Ensure your Jekyll site has the file `.github/workflows/pages-deploy.yml`{: .filepath}. Otherwise, create a new one and fill in the contents of the [sample file][workflow], and the value of the `on.push.branches` should be the same as your repo's default branch name.
 
-And then rename your repository to `<GH-USERNAME>.github.io` on GitHub.
+- Ensure your Jekyll site has file `tools/deploy.sh`{: .filepath}. Otherwise, copy it from here to your Jekyll site.
+
+- Furthermore, if you have committed `Gemfile.lock`{: .filepath} to the repo, and your runtime system is not Linux, don't forget to update the platform list in the lock file:
+
+  ```console
+  $ bundle lock --add-platform x86_64-linux
+  ```
+
+After the above steps, rename your repository to `<GH_USERNAME>.github.io` on GitHub.
 
 Now publish your Jekyll site by:
 
 1. Push any commit to remote to trigger the GitHub Actions workflow. Once the build is complete and successful, a new remote branch named `gh-pages` will appear to store the built site files.
 
-2. Browse to your repo's landing page on GitHub and select the branch `gh-pages` as the [publishing source](https://docs.github.com/en/github/working-with-github-pages/configuring-a-publishing-source-for-your-github-pages-site) through _Settings_ → _Options_ → _GitHub Pages_:
+2. Browse to your repository on GitHub. Select the tab _Settings_, then click _Pages_ in the left navigation bar, and then in the section **Source** of _GitHub Pages_, select the `/(root)` directory of branch `gh-pages` as the [publishing source][pages-src]. Remember to click <kbd>Save</kbd> before leaving.
 
-    ![gh-pages-sources](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20190809/gh-pages-sources.png){: width="850" height="153" }
+    ![gh-pages-sources](/posts/20190809/gh-pages-sources.png){: width="1580" height="250" }
 
 3. Visit your website at the address indicated by GitHub.
 
-#### Deploy on Other Platforms
+### Manually Build and Deploy
 
-On platforms other than GitHub, we cannot enjoy the convenience of **GitHub Actions**. Therefore, we should build the site locally (or on some other 3rd-party CI platform) and then put the site files on the server.
+On self-hosted servers, you cannot enjoy the convenience of **GitHub Actions**. Therefore, you should build the site on your local machine and then upload the site files to the server.
 
-Go to the root of the source project, build your site by:
+Go to the root of the source project, and build your site as follows:
 
 ```console
 $ JEKYLL_ENV=production bundle exec jekyll b
 ```
 
-Or build the site with Docker by:
+Or build the site on Docker:
 
-```terminal
+```console
 $ docker run -it --rm \
     --env JEKYLL_ENV=production \
     --volume="$PWD:/srv/jekyll" \
@@ -166,8 +155,34 @@ $ docker run -it --rm \
     jekyll build
 ```
 
-Unless you specified the output path, the generated site files will be placed in folder `_site` of the project's root directory. Now you should upload those files to your web server.
+Unless you specified the output path, the generated site files will be placed in folder `_site`{: .filepath} of the project's root directory. Now you should upload those files to the target server.
+
+## Upgrading
+
+It depends on how you use the theme:
+
+- If you are using the theme gem (there will be `gem "jekyll-theme-chirpy"` in the `Gemfile`{: .filepath}), editing the `Gemfile`{: .filepath} and update the version number of the theme gem, for example:
+
+  ```diff
+  - gem "jekyll-theme-chirpy", "~> 3.2", ">= 3.2.1"
+  + gem "jekyll-theme-chirpy", "~> 3.3", ">= 3.3.0"
+  ```
+  {: .nolineno file="Gemfile" }
+
+  And then execute the following command:
+
+  ```console
+  $ bundle update jekyll-theme-chirpy
+  ```
+
+  As the version upgrades, the critical files (for details, see the [Startup Template][starter]) and configuration options will change. Please refer to the [Upgrade Guide](https://github.com/cotes2020/jekyll-theme-chirpy/wiki/Upgrade-Guide) to keep your repo's files in sync with the latest version of the theme.
+
+- If you forked from the source project (there will be `gemspec` in the `Gemfile`{: .filepath} of your site), then merge the [latest upstream tags][latest-tag] into your Jekyll site to complete the upgrade.
+The merge is likely to conflict with your local modifications. Please be patient and careful to resolve these conflicts.
 
 [starter]: https://github.com/cotes2020/chirpy-starter
 [use-starter]: https://github.com/cotes2020/chirpy-starter/generate
 [workflow]: https://github.com/cotes2020/jekyll-theme-chirpy/blob/master/.github/workflows/pages-deploy.yml.hook
+[chirpy-4.1.0]: https://github.com/cotes2020/jekyll-theme-chirpy/releases/tag/v4.1.0
+[pages-src]: https://docs.github.com/en/github/working-with-github-pages/configuring-a-publishing-source-for-your-github-pages-site
+[latest-tag]: https://github.com/cotes2020/jekyll-theme-chirpy/tags

_posts/2019-08-11-customize-the-favicon.md

@@ -1,16 +1,18 @@
 ---
 title: Customize the Favicon
-author: Cotes Chung
+author:
+  name: Cotes Chung
+  link: https://github.com/cotes2020
 date: 2019-08-11 00:34:00 +0800
 categories: [Blogging, Tutorial]
 tags: [favicon]
 ---
 
-The [favicons](https://www.favicon-generator.org/about/) of [**Chirpy**](https://github.com/cotes2020/jekyll-theme-chirpy/) are placed in the directory `assets/img/favicons/`. You may need to replace them with your own. The following sections will guide you how to create and replace the default favicons.
+The [favicons](https://www.favicon-generator.org/about/) of [**Chirpy**](https://github.com/cotes2020/jekyll-theme-chirpy/) are placed in the directory `assets/img/favicons/`{: .filepath}. You may want to replace them with your own. The following sections will guide you to create and replace the default favicons.
 
 ## Generate the favicon
 
-Prepare a square image (PNG, JPG, or SVG) with a size of 512x512 or more, and then go to the online tool [**Real Favicon Generator**](https://realfavicongenerator.net/) and click button <kbd>Select your Favicon image</kbd> to upload your image file.
+Prepare a square image (PNG, JPG, or SVG) with a size of 512x512 or more, and then go to the online tool [**Real Favicon Generator**](https://realfavicongenerator.net/) and click the button <kbd>Select your Favicon image</kbd> to upload your image file.
 
 In the next step, the webpage will show all usage scenarios. You can keep the default options, scroll to the bottom of the page, and click the button <kbd>Generate your Favicons and HTML code</kbd> to generate the favicon.
 
@@ -18,20 +20,19 @@ In the next step, the webpage will show all usage scenarios. You can keep the de
 
 Download the generated package, unzip and delete the following two from the extracted files:
 
-- `browserconfig.xml`
-- `site.webmanifest`
+- `browserconfig.xml`{: .filepath}
+- `site.webmanifest`{: .filepath}
 
-Now, copy the remaining image files (`PNG` and `ICO`) to cover the original files in the folder `assets/img/favicons/` of your Jekyll site.
+And then copy the remaining image files (`.PNG`{: .filepath} and `.ICO`{: .filepath}) to cover the original files in the directory `assets/img/favicons/`{: .filepath} of your Jekyll site. If your Jekyll site doesn't have this directory yet, just create one.
 
-The following table will helps you understand the changes to the favicon files:
+The following table will help you understand the changes to the favicon files:
 
 | File(s)             | From Online Tool                  | From Chirpy |
 |---------------------|:---------------------------------:|:-----------:|
 | `*.PNG`             | ✓                                 | ✗           |
 | `*.ICO`             | ✓                                 | ✗           |
-| `browserconfig.xml` | ✗                                 | ✓           |
-| `site.webmanifest`  | ✗                                 | ✓           |
 
-> Note: ✓ means keep, ✗ means delete.
+>  ✓ means keep, ✗ means delete.
+{: .prompt-info }
 
 The next time you build the site, the favicon will be replaced with a customized edition.

_posts/2021-01-03-enable-google-pv.md

@@ -1,6 +1,8 @@
 ---
 title: Enable Google Page Views
-author: Dinesh Prasanth Moluguwan Krishnamoorthy
+author:
+  name: Dinesh Prasanth Moluguwan Krishnamoorthy
+  link: https://github.com/SilleBille
 date: 2021-01-03 18:32:00 -0500
 categories: [Blogging, Tutorial]
 tags: [google analytics, pageviews]
@@ -13,29 +15,29 @@ This post is to enable Page Views on the [**Chirpy**][chirpy-homepage] theme bas
 
 ### Create GA account and property
 
-First, you need to setup your account on Google analytics. While your create your account, you must create your first **Property** as well.
+First, you need to set up your account on Google analytics. While you create your account, you must create your first **Property** as well.
 
 1. Head to <https://analytics.google.com/> and click on **Start Measuring**
 2. Enter your desired _Account Name_ and choose the desired checkboxes
 3. Enter your desired _Property Name_. This is the name of the tracker project that appears on your Google Analytics dashboard
 4. Enter the required information _About your business_
-5. Hit _Create_ and accept any license popup to setup your Google Analytics account and create your property
+5. Hit _Create_ and accept any license popup to set up your Google Analytics account and create your property
 
 ### Create Data Stream
 
-With your property created, you now need to set up Data Stream to track your blog traffic. After you signup, the prompt should automatically take you to creating your first **Data Stream**. If not, follow these steps:
+With your property created, you now need to set up Data Stream to track your blog traffic. After you signup, the prompt should automatically take you to create your first **Data Stream**. If not, follow these steps:
 
 1. Go to **Admin** on the left column
-2. Select the desired property from the drop down on the second column
+2. Select the desired property from the drop-down on the second column
 3. Click on **Data Streams**
 4. Add a stream and click on **Web**
 5. Enter your blog's URL
 
 It should look like this:
 
-![google-analytics-data-stream](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20210103/01-google-analytics-data-stream.png){: width="1086" height="542"}
+![google-analytics-data-stream](/posts/20210103/01-google-analytics-data-stream.png){: width="1086" height="542"}
 
-Now, click on the new data stream and grab the **Measurement ID**. It should look something like `G-V6XXXXXXXX`. Copy this to your `_config.yml` file
+Now, click on the new data stream and grab the **Measurement ID**. It should look something like `G-V6XXXXXXXX`. Copy this to your `_config.yml`{: .filepath} file:
 
 ```yaml
 google_analytics:
@@ -47,13 +49,13 @@ google_analytics:
 ```
 {: file="_config.yml"}
 
-When you push these changes to your blog, you should start seeing the traffic on your Google Analytics. Play around with Google Analytics dashboard to get familiar with the options available as it takes like 5 mins to pickup your changes. You should now be able to monitor your traffic in realtime.
+When you push these changes to your blog, you should start seeing the traffic on your Google Analytics. Play around with the Google Analytics dashboard to get familiar with the options available as it takes like 5 mins to pick up your changes. You should now be able to monitor your traffic in real time.
 
-![google-analytics-realtime](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20210103/02-google-analytics-realtime.png){: width="616" height="557"}
+![google-analytics-realtime](/posts/20210103/02-google-analytics-realtime.png){: width="616" height="557"}
 
 ## Setup Page Views
 
-There is a detailed [tutorial](https://developers.google.com/analytics/solutions/google-analytics-super-proxy) available to set up Google Analytics superProxy. But, if you are interested to just quickly get your Chirpy-based blog display page views, follow along. These steps were tested on a Linux machine. If you are running Windows, you can use Git bash terminal to run Unix-like commands.
+There is a detailed [tutorial](https://developers.google.com/analytics/solutions/google-analytics-super-proxy) available to set up Google Analytics superProxy. But, if you are interested to just quickly get your Chirpy-based blog display page views, follow along. These steps were tested on a Linux machine. If you are running Windows, you can use the Git bash terminal to run Unix-like commands.
 
 ### Setup Google App Engine
 
@@ -67,7 +69,7 @@ There is a detailed [tutorial](https://developers.google.com/analytics/solutions
 
 5. Select **Python** language and **Standard** environment
 
-6. Enable billing account. Yeah, you have to link your credit card. But, you won't be billed unless you exceed your free quota. For a simple blog, free quota is more than sufficient.
+6. Enable billing account. Yeah, you have to link your credit card. But, you won't be billed unless you exceed your free quota. For a simple blog, the free quota is more than sufficient.
 
 7. Go to your App Engine dashboard on your browser and select **API & Services** from the left navigation menu
 
@@ -77,7 +79,7 @@ There is a detailed [tutorial](https://developers.google.com/analytics/solutions
 
 10. On the left, Click on _OAuth Consent Screen_ and accept **Configure Consent Screen**. Select **External** since your blog is probably hosted for the public. Click on **Publish** under _Publishing Status_
 
-11. Click on **Credentials** on the left and create a new **OAuth Client IDs** credential. Make sure to add a entry under `Authorized redirect URIs` that matches: `https://<project-id>.<region>.r.appspot.com/admin/auth`
+11. Click on **Credentials** on the left and create a new **OAuth Client IDs** credential. Make sure to add an entry under `Authorized redirect URIs` that matches: `https://<project-id>.<region>.r.appspot.com/admin/auth`
 
 12. Note down the **Your Client ID** and **Your Client Secret**. You'll need this in the next section.
 
@@ -113,15 +115,16 @@ There is a detailed [tutorial](https://developers.google.com/analytics/solutions
 
 1. Clone the **Google Analytics superProxy** project on Github: <https://github.com/googleanalytics/google-analytics-super-proxy> to your local.
 
-2. Remove the first 2 lines in the [`src/app.yaml`](https://github.com/googleanalytics/google-analytics-super-proxy/blob/master/src/app.yaml#L1-L2) file:
-  ```diff
-- application: your-project-id
-- version: 1
-  ```
+2.  Remove the first 2 lines in the [`src/app.yaml`{: .filepath}](https://github.com/googleanalytics/google-analytics-super-proxy/blob/master/src/app.yaml#L1-L2) file:
 
-3. In `src/config.py`, add the `OAUTH_CLIENT_ID` and `OAUTH_CLIENT_SECRET` that you gathered from you App Engine Dashboard.
+    ```diff
+    - application: your-project-id
+    - version: 1
+    ```
 
-4. Enter any random key for `XSRF_KEY`, your `config.py` should look similar to this
+3. In `src/config.py`{: .filepath}, add the `OAUTH_CLIENT_ID` and `OAUTH_CLIENT_SECRET` that you gathered from your App Engine Dashboard.
+
+4.  Enter any random key for `XSRF_KEY`, your `config.py`{: .filepath} should look similar to this
 
     ```python
     #!/usr/bin/python2.7
@@ -143,9 +146,11 @@ There is a detailed [tutorial](https://developers.google.com/analytics/solutions
     ```
     {: file="src/config.py"}
 
-    **Tip:** You can configure a custom domain instead of `https://PROJECT_ID.REGION_ID.r.appspot.com`. But, for the sake of keeping it simple, we will be using the Google provided default URL.
+    > You can configure a custom domain instead of `https://PROJECT_ID.REGION_ID.r.appspot.com`.
+    > But, for the sake of keeping it simple, we will be using the Google provided default URL.
+    {: .prompt-info }
 
-5. From inside the src/ directory, deploy the app
+5.  From inside the `src/`{: .filepath} directory, deploy the app
 
     ```console
     [root@bc96abf71ef8 src]# gcloud app deploy
@@ -185,7 +190,7 @@ There is a detailed [tutorial](https://developers.google.com/analytics/solutions
 
 If everything went good, you'll get this screen:
 
-![superProxy-deployed](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20210103/03-superProxy-deployed.png){: width="1366" height="354"}
+![superProxy-deployed](/posts/20210103/03-superProxy-deployed.png){: width="1366" height="354"}
 
 ### Create Google Analytics Query
 
@@ -202,24 +207,23 @@ In order to reduce the returned results and reduce the network bandwidth, we add
 
 - **filters**: fill in `ga:pagePath=~^/posts/.*/$;ga:pagePath!@=`.
 
-    Among them, `;` means using _logical AND_ to concatenate two rules.
+  Among them, `;` means using _logical AND_ to concatenate two rules.
 
-    If the `site.baseurl` is specified, change the first filtering rule to `ga:pagePath=~^/BASE_URL/posts/.*/$`, where `BASE_URL` is the value of `site.baseurl`.
+  If the `site.baseurl` is specified, change the first filtering rule to `ga:pagePath=~^/BASE_URL/posts/.*/$`, where `BASE_URL` is the value of `site.baseurl`.
 
-After <kbd>Run Query</kbd>, copy the generated contents of **API Query URI** at the bottom of the page, and fill in the **Encoded URI for the query** of SuperProxy on GAE.
+After <kbd>Run Query</kbd>, copy the generated contents of **API Query URI** at the bottom of the page and fill in the **Encoded URI for the query** of SuperProxy on GAE.
 
 After the query is saved on GAE, a **Public Endpoint** (public access address) will be generated, and we will get the query result in JSON format when accessing it. Finally, click <kbd>Enable Endpoint</kbd> in **Public Request Endpoint** to make the query effective, and click <kbd>Start Scheduling</kbd> in **Scheduling** to start the scheduled task.
 
-![superproxy-query](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20210103/04-superproxy-query.png){: width="1100" height="126"}
-
+![superproxy-query](/posts/20210103/04-superproxy-query.png){: width="1100" height="126"}
 
 ## Configure Chirpy to Display Page View
 
 Once all the hard part is done, it is very easy to enable the Page View on Chirpy theme. Your superProxy dashboard should look something like below and you can grab the required values.
 
-![superproxy-dashboard](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images/posts/20210103/05-superproxy-dashboard.png){: width="1210" height="694"}
+![superproxy-dashboard](/posts/20210103/05-superproxy-dashboard.png){: width="1210" height="694"}
 
-Update the `_config.yml` file of [**Chirpy**][chirpy-homepage] project with the values from your dashboard, to look similar to the following:
+Update the `_config.yml`{: .filepath} file of [**Chirpy**][chirpy-homepage] project with the values from your dashboard, to look similar to the following:
 
 ```yaml
 google_analytics:

_sass/addon/module.scss

@@ -10,6 +10,39 @@
   font-family: 'Lato', 'Microsoft Yahei', sans-serif;
 }
 
+%section {
+  #core-wrapper & {
+    margin-top: 2.5rem;
+    margin-bottom: 1.25rem;
+
+    &:focus {
+      outline: none; /* avoid outline in Safari */
+    }
+  }
+}
+
+%anchor {
+  .anchor {
+    font-size: 80%;
+  }
+
+  @media (hover: hover) {
+    .anchor {
+      visibility: hidden;
+      opacity: 0;
+      transition: opacity 0.25s ease-in, visibility 0s ease-in 0.25s;
+    }
+
+    &:hover {
+      .anchor {
+        visibility: visible;
+        opacity: 1;
+        transition: opacity 0.25s ease-in, visibility 0s ease-in 0s;
+      }
+    }
+  }
+}
+
 %tag-hover {
   background: var(--tag-hover);
   transition: background 0.35s ease-in-out;
@@ -35,20 +68,40 @@
   border-bottom: 1px solid var(--link-underline-color);
 }
 
+%clickable-transition {
+  transition: color 0.35s ease-in-out;
+}
+
+%no-cursor {
+  user-select: none;
+}
+
 %no-bottom-border {
   border-bottom: none;
 }
 
-%section {
-  #post-wrapper & {
-    line-height: 1.2;
-    margin-bottom: 1rem;
+%cursor-pointer {
+  cursor: pointer;
+}
+
+%normal-font-style {
+  font-style: normal;
+}
+
+%img-caption {
+  + em {
+    display: block;
+    text-align: center;
+    font-style: normal;
+    font-size: 80%;
+    padding: 0;
+    color: #6d6c6c;
   }
 }
 
-%anchor {
-  padding-top: 3.5rem;
-  margin-top: -2.5rem;
+%sidebar-links {
+  color: rgba(117, 117, 117, 0.9);
+  user-select: none;
 }
 
 /* ---------- scss mixin --------- */
@@ -57,19 +110,6 @@
   text-decoration: none;
 }
 
-@mixin sidebar-links($color: rgba(255, 255, 255, 0.5)) {
-  color: $color;
-  transition: color 0.35s ease-in-out;
-  user-select: none;
-}
-
-@mixin icon-round($diameter) {
-  border: 1px solid;
-  border-radius: 50%;
-  width: $diameter;
-  height: $diameter;
-}
-
 @mixin ml-mr($value) {
   margin-left: $value;
   margin-right: $value;
@@ -84,28 +124,12 @@
   opacity: 0.6;
 }
 
-@mixin semi-bold {
-  font-weight: 600;
-}
-
 @mixin label($font-size: 1rem, $font-weight: 600, $color: var(--label-color)) {
   color: $color;
   font-size: $font-size;
   font-weight: $font-weight;
 }
 
-@mixin panel-label {
-  @include label(inherit);
-
-  display: block;
-  line-height: 1.2;
-  padding-top: 0.5rem;
-  padding-bottom: 0.5rem;
-  margin-top: 0;
-  margin-bottom: 0;
-  letter-spacing: -0.02em;
-}
-
 @mixin align-center {
   position: relative;
   left: 50%;
@@ -113,3 +137,15 @@
   -ms-transform: translateX(-50%);
   transform: translateX(-50%);
 }
+
+@mixin prompt($type, $fw-icon, $icon-weight: 900) {
+  &.prompt-#{$type} {
+    background-color: var(--prompt-#{$type}-bg);
+
+    &::before {
+      content: $fw-icon;
+      color: var(--prompt-#{$type}-icon-color);
+      font-weight: $icon-weight;
+    }
+  }
+}

_sass/addon/syntax.scss

@@ -5,23 +5,27 @@
 @import "colors/light-syntax";
 @import "colors/dark-syntax";
 
-html:not([mode]),
-html[mode=light] {
-  @include light-syntax;
-}
+html {
+  @media (prefers-color-scheme: light) {
+    &:not([data-mode]),
+    [data-mode=light] {
+      @include light-syntax;
+    }
 
-html[mode=dark] {
-  @include dark-syntax;
-}
-
-@media (prefers-color-scheme: dark) {
-  html:not([mode]),
-  html[mode=dark] {
-    @include dark-syntax;
+    &[data-mode=dark] {
+      @include dark-syntax;
+    }
   }
 
-  html[mode=light] {
-    @include light-syntax;
+  @media (prefers-color-scheme: dark) {
+    &:not([data-mode]),
+    &[data-mode=dark] {
+      @include dark-syntax;
+    }
+
+    &[data-mode=light] {
+      @include light-syntax;
+    }
   }
 }
 
@@ -38,13 +42,8 @@ $code-radius: 6px;
 }
 
 %code-snippet-padding {
-  padding: 1.2rem;
-}
-
-div > pre {
-  @extend %code-snippet-bg;
-  @extend %code-snippet-radius;
-  @extend %code-snippet-padding;
+  padding-left: 1rem;
+  padding-right: 1.5rem;
 }
 
 .highlighter-rouge {
@@ -65,6 +64,8 @@ div > pre {
   }
 
   overflow: auto;
+  padding-top: 0.5rem;
+  padding-bottom: 1rem;
 
   pre {
     margin-bottom: 0;
@@ -74,19 +75,12 @@ div > pre {
   }
 
   table {
-    padding: 0;
-    border: 0;
     td pre {
       overflow: visible;  /* Fixed iOS safari overflow-x */
       word-break: normal; /* Fixed iOS safari linenos code break */
     }
   }
 
-  td {
-    padding: 0;
-    border: 0;
-  }
-
   .lineno {
     padding-right: 0.5rem;
     min-width: 2.2rem;
@@ -105,7 +99,7 @@ div > pre {
     user-select: none;
   }
 
-} //.highlight
+} /* .highlight */
 
 code {
   -webkit-hyphens: none;
@@ -120,25 +114,38 @@ code {
     background-color: var(--inline-code-bg);
   }
 
-  @at-root a > &.highlighter-rouge {
-    padding-bottom: 0; // show link's underlinke
+  &.filepath {
+    background-color: inherit;
+    color: var(--filepath-text-color);
+    font-weight: 600;
+    padding: 0;
+  }
+
+  a > &.highlighter-rouge {
+    padding-bottom: 0; /* show link's underlinke */
     color: inherit;
   }
 
-  @at-root a:hover > &.highlighter-rouge {
+  a:hover > &.highlighter-rouge {
     border-bottom: none;
   }
 
-  blockquote &.highlighter-rouge {
+  blockquote & {
     color: inherit;
   }
+
+  .highlight > & {
+    color: transparent;
+  }
 }
 
 td.rouge-code {
-  padding: 1.2rem 1.5rem 1.2rem 1rem;
+  @extend %code-snippet-padding;
 
-  // Prevent some browser extends from
-  // changing the URL string of code block.
+  /*
+    Prevent some browser extends from
+    changing the URL string of code block.
+  */
   a {
     color: inherit !important;
     border-bottom: none !important;
@@ -157,66 +164,105 @@ div {
     pre.lineno {
       display: none;
     }
+
     td.rouge-code {
-      @extend %code-snippet-padding;
+      padding-left: 1.5rem;
     }
   }
 }
 
 .code-header {
-  background: var(--code-header-bg);
+  @extend %no-cursor;
+
+  $code-header-height: 2.25rem;
+
   border-top-left-radius: $code-radius;
   border-top-right-radius: $code-radius;
   display: flex;
   justify-content: space-between;
   align-items: center;
-  line-height: 1.85rem;
+  height: $code-header-height;
 
-  // text data
   &::before {
-    content: attr(text-data);
-    color: var(--lang-badge-color);
-    padding-left: 1em;
+    $dot-size: 0.75rem;
+    $dot-margin: 0.5rem;
 
-    // language
-    font-size: 0.75rem;
-    font-weight: 600;
-    text-transform: uppercase;
+    content: "";
+    display: inline-block;
+    margin-left: 1rem;
+    width: $dot-size;
+    height: $dot-size;
+    border-radius: 50%;
+    background-color: var(--code-header-muted-color);
+    box-shadow:
+      ($dot-size + $dot-margin) 0 0 var(--code-header-muted-color),
+      ($dot-size + $dot-margin) * 2 0 0 var(--code-header-muted-color);
+  }
 
-    // file name
-    @at-root [file] #{&} {
+  /* the label block */
+  span {
+    /* label icon */
+    i {
+      font-size: 1rem;
+      margin-right: 0.4rem;
+      color: var(--code-header-icon-color);
+
+      &.small {
+        font-size: 70%;
+      }
+    }
+
+    @at-root [file] #{&} > i {
+      position: relative;
+      top: 1px; /* center the file icon */
+    }
+
+    /* label text */
+    &::after {
+      content: attr(data-label-text);
       font-size: 0.85rem;
-      text-transform: none;
+      font-weight: 600;
+      color: var(--code-header-text-color);
     }
   }
 
-  // clipboard
+  /* clipboard */
   button {
-    border: 1px solid var(--code-header-bg);
-    border-radius: $code-radius;
-    padding: 0;
-    width: 1.95rem;
-    background-color: inherit;
-    color: var(--highlight-lineno-color);
+    @extend %cursor-pointer;
 
-    &[locked=true] {
-      color: var(--clipboard-checked-color);
-      border-color: var(--clipboard-checked-color);
+    border: 1px solid transparent;
+    border-radius: $code-radius;
+    height: $code-header-height;
+    width: $code-header-height;
+    padding: 0;
+    background-color: inherit;
+
+    i {
+      color: var(--code-header-icon-color);
     }
 
-    &:not([locked]):hover {
-      background-color: gray;
-      color: white;
+    &[timeout] {
+      &:hover {
+        border-color: var(--clipboard-checked-color);
+      }
+
+      i {
+        color: var(--clipboard-checked-color);
+      }
+    }
+
+    &:not([timeout]):hover {
+      background-color: rgba(128, 128, 128, 0.37);
+
+      i {
+        color: white;
+      }
     }
 
     &:focus {
       outline: none;
     }
 
-    i {
-      font-size: 0.9rem;
-    }
-
   }
 
 }
@@ -228,6 +274,10 @@ div {
 
       border-radius: 0;
 
+      .highlight {
+        padding-left: 0.25rem;
+      }
+
       .code-header {
         border-radius: 0;
         padding-left: 0.4rem;

_sass/addon/variables.scss

@@ -4,30 +4,30 @@
 
 /* sidebar */
 
-$sidebar-width: 260px !default;        // the basic width
-$sidebar-width-small: 210px !default;  // screen width: >= 850px, <= 1199px (iPad landscape)
-$sidebar-width-large: 350px !default;  // screen width: >= 1650px
+$sidebar-width: 260px !default;        /* the basic width */
+$sidebar-width-small: 210px !default;  /* screen width: >= 850px, <= 1199px (iPad landscape) */
+$sidebar-width-large: 350px !default;  /* screen width: >= 1650px */
 
 /* tabs of sidebar */
 
-$tab-count: 5 !default;   // backward compatible (version <= 4.0.2)
-$tab-height: 3.2rem !default;
+$tab-count: 5 !default;   /* backward compatible (version <= 4.0.2) */
+$tab-height: 3rem !default;
 $tab-cursor-height: 1.6rem !default;
 
-$cursor-width: 3px !default;    // the cursor width of the selected tab
+$cursor-width: 2px !default;    /* the cursor width of the selected tab */
 
 /* other framework sizes */
 
 $topbar-height: 3rem !default;
 
 $footer-height: 5rem !default;
-$footer-height-mobile: 6rem !default;   // screen width: <= 576px
+$footer-height-mobile: 6rem !default;   /* screen width: <= 576px */
 
 $main-content-max-width: 1150px !default;
 
 $panel-max-width: 300px !default;
 
-$post-extend-min-height: 35rem !default;
+$bottom-min-height: 35rem !default;
 
 /* syntax highlight */
 

_sass/colors/dark-syntax.scss

@@ -74,14 +74,15 @@
   --highlighter-rouge-color: #de6b18;
   --highlight-lineno-color: #6c6c6d;
   --inline-code-bg: #272822;
-  --code-header-bg: #353535;
-  --lang-badge-color: #6c6c6d;
+  --code-header-text-color: #6a6a6a;
+  --code-header-muted-color: rgb(60 60 60);
+  --code-header-icon-color: rgb(86 86 86);
   --clipboard-checked-color: #2bcc2b;
+  --filepath-text-color: #bdbdbd;
 
   .highlight {
     .gp { color: #818c96; }
   }
 
   pre { color: #bfbfbf; } /* override Bootstrap */
-  kbd { background-color: black; }
 }

_sass/colors/dark-typography.scss

@@ -8,8 +8,6 @@
   --mask-bg: rgb(68, 69, 70);
   --main-wrapper-bg: rgb(27, 27, 30);
   --main-border-color: rgb(44, 45, 45);
-  --scrollbar-track-bg: rgba(0, 0, 0, 0.3);
-  --scrollbar-thumb-bg: rgb(173 171 171 / 50%);
 
   /* Common color */
   --text-color: rgb(175, 176, 177);
@@ -30,13 +28,17 @@
   --checkbox-checked-color: var(--link-color);
 
   /* Sidebar */
-  --nav-cursor-color: rgb(183, 182, 182);
   --sidebar-bg: radial-gradient(circle, #242424 0%, #1d1f27 100%);
+  --sidebar-muted-color: #6d6c6b;
+  --sidebar-active-color: rgb(255 255 255 / 80%);
+  --nav-cursor-color: rgb(183, 182, 182);
+  --sidebar-btn-bg: rgb(117 116 116 / 20%);
 
   /* Topbar */
   --topbar-text-color: var(--text-color);
   --topbar-wrapper-bg: rgb(39, 40, 43);
   --search-wrapper-bg: rgb(34, 34, 39);
+  --search-wrapper-border-color: rgb(34, 34, 39);
   --search-icon-color: rgb(100, 102, 105);
   --input-focus-border-color: rgb(112, 114, 115);
 
@@ -44,11 +46,8 @@
   --post-list-text-color: rgb(175, 176, 177);
   --btn-patinator-text-color: var(--text-color);
   --btn-paginator-hover-color: rgb(64, 65, 66);
-  --btn-active-bg: rgba(28, 52, 94, 1);
-  --btn-active-border-color: rgb(66, 94, 138);
-  --btn-text-color: var(--text-color);
   --btn-paginator-border-color: var(--btn-border-color);
-  --btn-paginator-shadow: var(--main-wrapper-bg);
+  --btn-text-color: var(--text-color);
   --pin-bg: rgb(34 35 37);
   --pin-color: inherit;
 
@@ -66,6 +65,19 @@
   --card-bg: rgb(39, 40, 43);
   --card-border-color: rgb(53, 53, 60);
   --card-box-shadow: var(--main-wrapper-bg);
+  --preview-img-bg: radial-gradient(circle, rgb(22 22 24) 0%, rgb(32 32 32) 100%);
+  --kbd-wrap-color: #6a6a6a;
+  --kbd-text-color: #d3d3d3;
+  --kbd-bg-color: #242424;
+  --prompt-text-color: rgb(216 212 212 / 75%);
+  --prompt-tip-bg: rgba(77, 187, 95, 0.2);
+  --prompt-tip-icon-color: rgb(5 223 5 / 68%);
+  --prompt-info-bg: rgb(7 59 104 / 80%);
+  --prompt-info-icon-color: #0075d1;
+  --prompt-warning-bg: rgb(90 69 3 / 95%);
+  --prompt-warning-icon-color: rgb(255 165 0 / 80%);
+  --prompt-danger-bg: rgb(86 28 8 / 80%);
+  --prompt-danger-icon-color: #cd0202;
 
   /* tags */
   --tag-border: rgb(59, 79, 88);
@@ -76,18 +88,15 @@
   /* categories */
   --categories-border: rgb(64, 66, 69);
   --categories-hover-bg: rgb(73, 75, 76);
+  --categories-icon-hover-color: white;
 
   /* archives */
   --timeline-node-bg: rgb(150, 152, 156);
   --timeline-color: rgb(63, 65, 68);
   --timeline-year-dot-color: var(--timeline-color);
 
-  /* Footer */
-  --footer-bg-color: var(--main-wrapper-bg);
-  --footer-link: rgb(171, 171, 171);
-
-  .post-content img {
-    filter: brightness(90%);
+  .post img[data-src] {
+    filter: brightness(95%);
   }
 
   hr {
@@ -114,11 +123,13 @@
     .card-header {
       background-color: var(--card-header-bg);
     }
+
     .list-group-item {
       border-left: none;
       border-right: none;
       padding-left: 2rem;
       border-color: var(--categories-border);
+
       &:last-child {
         border-bottom-color: var(--card-bg);
       }
@@ -126,13 +137,21 @@
   }
 
   #archives li:nth-child(odd) {
-    background-image: linear-gradient(
-      to left,
-      rgb(26, 26, 30),
-      rgb(39, 39, 45),
-      rgb(39, 39, 45),
-      rgb(39, 39, 45),
-      rgb(26, 26, 30));
+    background-image:
+      linear-gradient(
+        to left,
+        rgb(26, 26, 30),
+        rgb(39, 39, 45),
+        rgb(39, 39, 45),
+        rgb(39, 39, 45),
+        rgb(26, 26, 30)
+      );
   }
 
-} // dark-scheme
+  color-scheme: dark;
+
+  #disqus_thread {
+    color-scheme: none;
+  }
+
+} /* dark-scheme */

_sass/colors/light-syntax.scss

@@ -71,8 +71,14 @@
   --highlighter-rouge-color: #2f2f2f;
   --highlight-lineno-color: #c2c6cc;
   --inline-code-bg: #f3f3f3;
-  --code-header-bg: #eaeaea;
-  --lang-badge-color: #a4a7ab;
+  --code-header-text-color: #a3a3b1;
+  --code-header-muted-color: #ebebeb;
+  --code-header-icon-color: #d1d1d1;
   --clipboard-checked-color: #43c743;
 
-} // light-syntax
+  [class^=prompt-] {
+    --inline-code-bg: #fbfafa;
+    --highlighter-rouge-color: rgb(82 82 82);
+  }
+
+} /* light-syntax */

_sass/colors/light-typography.scss

@@ -8,8 +8,6 @@
   --mask-bg: #c1c3c5;
   --main-wrapper-bg: white;
   --main-border-color: #f3f3f3;
-  --scrollbar-track-bg: rgba(0, 0, 0, 0.3);
-  --scrollbar-thumb-bg: rgba(0, 0, 0, 0.3);
 
   /* Common color */
   --text-color: #34343c;
@@ -28,13 +26,17 @@
   --checkbox-checked-color: #07a8f7;
 
   /* Sidebar */
-  --sidebar-bg: radial-gradient(circle, rgba(42, 30, 107, 1) 0%, rgba(35, 37, 46, 1) 100%);
-  --nav-cursor-color: #fcfcfc;
+  --sidebar-bg: #eeeeee;
+  --sidebar-muted-color: #a2a19f;
+  --sidebar-active-color: #424242;
+  --nav-cursor-color: #757575;
+  --sidebar-btn-bg: white;
 
   /* Topbar */
   --topbar-text-color: rgb(78, 78, 78);
   --topbar-wrapper-bg: white;
-  --search-wrapper-bg: #f5f5f5;
+  --search-wrapper-bg: rgb(245 245 245 / 50%);
+  --search-wrapper-border-color: rgb(245 245 245);
   --search-tag-bg: #f8f9fa;
   --search-icon-color: #c2c6cc;
   --input-focus-border-color: var(--btn-border-color);
@@ -42,12 +44,9 @@
   /* Home page */
   --post-list-text-color: dimgray;
   --btn-patinator-text-color: #555555;
-  --btn-paginator-hover-color: #e9ecef;
-  --btn-active-bg: #2a408e;
-  --btn-active-border-color: #007bff;
-  --btn-text-color: #f8f8f8;
-  --btn-paginator-border-color: #f1f1f1;
-  --btn-paginator-shadow: #4b92d2;
+  --btn-paginator-hover-color: var(--sidebar-bg);
+  --btn-paginator-border-color: var(--sidebar-bg);
+  --btn-text-color: #676666;
   --pin-bg: #f5f5f5;
   --pin-color: #999fa4;
 
@@ -64,15 +63,32 @@
   --tag-hover: rgb(222, 226, 230);
   --tb-odd-bg: #fbfcfd;
   --tb-border-color: #eaeaea;
-  --categories-hover-bg: var(--btn-border-color);
   --dash-color: silver;
+  --preview-img-bg: radial-gradient(circle, rgb(255 255 255) 0%, rgb(249 249 249) 100%);
+  --kbd-wrap-color: #bdbdbd;
+  --kbd-text-color: var(--text-color);
+  --kbd-bg-color: white;
+  --prompt-text-color: rgb(46 46 46 / 77%);
+  --prompt-tip-bg: rgb(123 247 144 / 20%);
+  --prompt-tip-icon-color: #03b303;
+  --prompt-info-bg: #e1f5fe;
+  --prompt-info-icon-color: #0070cb;
+  --prompt-warning-bg: rgb(255 243 205);
+  --prompt-warning-icon-color: #ef9c03;
+  --prompt-danger-bg: rgb(248 215 218 / 56%);
+  --prompt-danger-icon-color: #df3c30;
+
+  [class^=prompt-] {
+    --link-underline-color: rgb(219 216 216);
+  }
+
+  /* Categories */
+  --categories-hover-bg: var(--btn-border-color);
+  --categories-icon-hover-color: darkslategray;
 
   /* Archive */
   --timeline-color: rgba(0, 0, 0, 0.075);
   --timeline-node-bg: #c2c6cc;
   --timeline-year-dot-color: #ffffff;
 
-  /* Footer */
-  --footer-bg-color: #ffffff;
-  --footer-link: #424242;
-} // light-scheme
+} /* light-scheme */

_sass/jekyll-theme-chirpy.scss

@@ -1,7 +1,7 @@
 /*!
  * The styles for Jekyll theme Chirpy
  *
- * Chirpy v4.2.0 (https://github.com/cotes2020/jekyll-theme-chirpy)
+ * Chirpy v5.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy)
  * © 2019 Cotes Chung
  * MIT Licensed
  */

_sass/layout/archives.scss

@@ -41,6 +41,7 @@
     &:not(:first-child) {
       position: relative;
       left: 4px;
+
       &::after {
         left: 67px;
       }
@@ -98,6 +99,7 @@
   .date {
     white-space: nowrap;
     display: inline-block;
+
     &.month {
       width: 1.4rem;
       text-align: center;
@@ -120,6 +122,7 @@
         z-index: 1;
       }
     }
+
     &.day {
       font-size: 85%;
       font-family: 'Lato', sans-serif;
@@ -127,7 +130,7 @@
       margin-right: -2px;
       width: 1.2rem;
       position: relative;
-      left: -.15rem;
+      left: -0.15rem;
     }
   } // #archives .date
 
@@ -136,6 +139,7 @@
 @media all and (max-width: 576px) {
   #archives {
     margin-top: -1rem;
+
     ul {
       letter-spacing: 0;
     }

_sass/layout/categories.scss

@@ -8,24 +8,22 @@
 
 .categories {
   margin-bottom: 2rem;
+
   .card-header {
     padding-right: 12px;
   }
 
   i {
-    &.far,
-    &.fas {
-      font-size: 86%; // fontawesome icons
-    }
+    @extend %category-icon-color;
+
+    font-size: 86%; // fontawesome icons
   }
 
   .list-group-item {
     border-left: none;
     border-right: none;
     padding-left: 2rem;
-    > i {
-      @extend %category-icon-color;
-    }
+
     &:first-child {
       border-top-left-radius: 0;
       border-top-right-radius: 0;
@@ -33,10 +31,6 @@
 
   }
 
-  .card-header > span > i:first-child {
-    @extend %category-icon-color;
-  }
-
 } // .categories
 
 .category-trigger {
@@ -45,11 +39,18 @@
   border-radius: 50%;
   text-align: center;
   color: #6c757d !important;
-  > i.fas {
+
+  &:hover {
+    i {
+      color: var(--categories-icon-hover-color);
+    }
+  }
+
+  i {
     position: relative;
     height: 0.7rem;
     width: 1rem;
-    transition: 300ms ease all;
+    transition: transform 300ms ease;
   }
 }
 

_sass/layout/category-tag.scss

@@ -3,7 +3,7 @@
 */
 
 .dash {
-  margin: 0 .5rem .6rem .5rem;
+  margin: 0 0.5rem 0.6rem 0.5rem;
   border-bottom: 2px dotted var(--dash-color);
 }
 
@@ -60,8 +60,9 @@
   #page-tag {
     ul > li {
       &::before {
-        margin: 0 .5rem;
+        margin: 0 0.5rem;
       }
+
       > a {
         white-space: nowrap;
         overflow: hidden;

_sass/layout/home.scss

@@ -22,26 +22,29 @@
       border-radius: 50%;
       border: 1px solid var(--btn-paginator-border-color);
       background-color: var(--button-bg);
+
       &:hover {
         background-color: var(--btn-paginator-hover-color);
       }
     }
+
     &.active {
       .page-link {
-        background-color: var(--btn-active-bg);
-        border-color: var(--btn-active-border-color);
-        box-shadow: 0 0 8px 0 var(--btn-paginator-shadow) !important;
+        background-color: var(--btn-paginator-hover-color);
         color: var(--btn-text-color);
       }
     }
+
     &.disabled {
       cursor: not-allowed;
+
       .page-link {
         color: rgba(108, 117, 125, 0.57);
         border-color: var(--btn-paginator-border-color);
         background-color: var(--button-bg);
       }
     }
+
     &:first-child .page-link,
     &:last-child .page-link {
       border-radius: 50%;
@@ -71,9 +74,14 @@
     .post-meta {
       i {
         font-size: 0.73rem;
+
+        &:not(:first-child) {
+          margin-left: 1.2rem;
+        }
       }
-      span:not(:last-child) {
-        margin-right: 1.2rem;
+
+      em {
+        @extend %normal-font-style;
       }
     }
 
@@ -81,6 +89,7 @@
       margin-top: 0.6rem;
       margin-bottom: 0.6rem;
       color: var(--post-list-text-color);
+
       > p {
         /* Make preview shorter on the homepage */
         margin: 0;
@@ -98,13 +107,13 @@
         padding-left: 3px;
         color: var(--pin-color);
       }
+
       > span {
         display: none;
       }
     }
 
   } // .post-preview
-
 } // #post-list
 
 /* Hide SideBar and TOC */
@@ -124,9 +133,9 @@
 
 /* Sidebar is visible */
 @media all and (min-width: 831px) {
-
   #post-list {
     margin-top: 1.5rem;
+
     .post-preview .post-meta {
       .pin {
         background: var(--pin-bg);

_sass/layout/post.scss

@@ -16,27 +16,37 @@
   border-color: var(--btn-border-color);
 }
 
-@mixin dot($pl: 0.2rem, $pr: 0.4rem) {
+@mixin dot($pl: 0.25rem, $pr: 0.25rem) {
   content: "\2022";
-  color: rgba(158, 158, 158, 0.8);
   padding-left: $pl;
   padding-right: $pr;
 }
 
-#post-wrapper .post-meta {
-  > div:nth-child(2) {
-    > span:not(:first-child)::before {
-      @include dot;
+%text-color {
+  color: var(--text-color);
+}
+
+h1 + .post-meta {
+  span + span::before {
+    @include dot;
+  }
+
+  em {
+    @extend %text-color;
+
+    a {
+      @extend %text-color;
     }
   }
 }
 
-.post-content {
-  .preview-img {
-    @include align-center;
+img.preview-img {
+  margin-top: 3.75rem;
+  margin-bottom: 0;
+  border-radius: 6px;
 
-    margin-top: 0;
-    margin-bottom: 2.5rem !important;
+  &.bg[data-loaded=true] {
+    background: var(--preview-img-bg);
   }
 }
 
@@ -44,6 +54,10 @@
   margin-top: 6rem;
   border-bottom: 1px double var(--main-border-color);
   font-size: 0.85rem;
+
+  .post-meta a:not(:hover) {
+    @extend %link-underline;
+  }
 }
 
 .post-tags {
@@ -109,7 +123,7 @@
     white-space: normal;
   }
 
-} // .post-navigation
+} /* .post-navigation */
 
 @keyframes fade-up {
   from {
@@ -131,22 +145,23 @@
   top: 4rem;
   transition: top 0.2s ease-in-out;
   animation: fade-up 0.8s;
-  &.topbar-down {
-    top: 6rem;
-  }
-  > span {
-    @include panel-label;
-  }
 }
 
-#toc li > a {
-  line-height: 1rem;
-  padding-top: 0.5rem;
-  padding-bottom: 0.5rem;
+#toc li a {
+  font-size: 0.8rem;
 
   &.nav-link:not(.active) {
     color: inherit;
   }
+
+}
+
+nav[data-toggle=toc] {
+  .nav {
+    .nav > li > a.active {
+      font-weight: 600 !important;
+    }
+  }
 }
 
 /* --- Related Posts --- */
@@ -155,6 +170,11 @@
   > h3 {
     @include label(1.1rem, 600);
   }
+
+  em {
+    @extend %normal-font-style;
+  }
+
   .card {
     border-color: var(--card-border-color);
     background-color: var(--card-bg);
@@ -162,9 +182,11 @@
     -webkit-transition: all 0.3s ease-in-out;
     -moz-transition: all 0.3s ease-in-out;
     transition: all 0.3s ease-in-out;
+
     h3 {
-      color: var(--text-color);
+      @extend %text-color;
     }
+
     &:hover {
       -webkit-transform: translate3d(0, -3px, 0);
       transform: translate3d(0, -3px, 0);
@@ -193,6 +215,7 @@
   ul {
     list-style-type: none;
     padding-inline-start: 1.5rem;
+
     > li::before {
       background: #c2c9d4;
       width: 5px;
@@ -207,11 +230,17 @@
   }
 }
 
-#post-extend-wrapper {
+#tail-wrapper {
   min-height: 2rem;
-  #disqus_thread {
+
+  > div:last-of-type {
     margin-bottom: 2rem;
   }
+
+  #disqus_thread {
+    min-height: 8.5rem;
+  }
+
 }
 
 .post-tail-bottom a {
@@ -228,45 +257,57 @@
 
   .share-icons {
     font-size: 1.2rem;
+
     a {
       &:not(:last-child) {
         margin-right: 0.25rem;
       }
+
       &:hover {
         text-decoration: none;
+
         > i {
           @extend %btn-share-hovor;
         }
       }
     }
+
     > i {
-      padding-top: 0.35rem;
+      position: relative;
+      bottom: 1px;
+
+      @extend %cursor-pointer;
+
       &:hover {
         @extend %btn-share-hovor;
       }
     }
+
     .fab {
       &.fa-twitter {
         @include btn-sharing-color(rgba(29, 161, 242, 1));
       }
+
       &.fa-facebook-square {
         @include btn-sharing-color(rgb(66, 95, 156));
       }
+
       &.fa-telegram {
         @include btn-sharing-color(rgb(39, 159, 217));
       }
+
       &.fa-weibo {
         @include btn-sharing-color(rgb(229, 20, 43));
       }
     }
 
-  } // .share-icons
+  } /* .share-icons */
 
   .fas.fa-link {
     @include btn-sharing-color(rgb(171, 171, 171));
   }
 
-} // .share-wrapper
+} /* .share-wrapper */
 
 .share-label {
   @include label(inherit, 400, inherit);
@@ -278,8 +319,10 @@
 
 .license-wrapper {
   line-height: 1.2rem;
+
   > a {
-    font-weight: 600;
+    color: var(--text-color);
+
     &:hover {
       @extend %link-hover;
     }
@@ -288,13 +331,19 @@
   span:last-child {
     font-size: 0.85rem;
   }
-} // .license-wrapper
+
+} /* .license-wrapper */
 
 @media all and (max-width: 576px) {
+  .preview-img[data-src] {
+    margin-top: 2.2rem;
+  }
+
   .post-tail-bottom {
     -ms-flex-wrap: wrap-reverse !important;
     flex-wrap: wrap-reverse !important;
-    >div:first-child {
+
+    > div:first-child {
       width: 100%;
       margin-top: 1rem;
     }
@@ -307,28 +356,17 @@
   }
 }
 
-@media all and (min-width: 768px) {
-  #post-wrapper {
-    .post-meta {
-      >div:not(:first-child)::before {
-        @include dot(0.5rem, 0.2rem);
-      }
-      &.flex-column {
-        -webkit-box-orient: horizontal !important;
-        -webkit-box-direction: normal !important;
-        -ms-flex-direction: row !important;
-        flex-direction: row !important;
-      }
-    }
-  } // .post
-}
-
 /* Hide SideBar and TOC */
-@media all and (max-width: 830px) {
+@media all and (max-width: 849px) {
   .post-navigation {
     padding-left: 0;
     padding-right: 0;
-    margin-left: -.5rem;
-    margin-right: -.5rem;
+    margin-left: -0.5rem;
+    margin-right: -0.5rem;
+  }
+
+  .preview-img[data-src] {
+    max-width: 100vw;
+    border-radius: 0;
   }
 }

_sass/layout/tags.scss

@@ -10,6 +10,7 @@
   letter-spacing: 0;
   border: 1px solid var(--tag-border) !important;
   box-shadow: 0 0 3px 0 var(--tag-shadow);
+
   span {
     margin-left: 0.6em;
     font-size: 0.7em;

_tabs/about.md

@@ -1,8 +1,8 @@
 ---
 title: About
-icon: fas fa-info
+icon: fas fa-info-circle
 order: 4
 ---
 
-
-> **Note**: Add Markdown syntax content to file `_tabs/about.md` and it will show up on this page.
+> Add Markdown syntax content to file `_tabs/about.md`{: .filepath } and it will show up on this page.
+{: .prompt-tip }

_tabs/tags.md

@@ -1,6 +1,6 @@
 ---
 layout: tags
 title: Tags
-icon: fas fa-tags
+icon: fas fa-tag
 order: 2
 ---

assets/404.html

@@ -7,8 +7,6 @@ redirect_from:
   - /norobots/
   - /assets/
   - /posts/
-
-dynamic_title: true
 ---
 
 {% include lang.html %}

assets/js/data/search.json

@@ -1,12 +1,13 @@
 ---
 layout: compress
+swcache: true
 ---
 
 [
   {% for post in site.posts %}
   {
     "title": "{{ post.title | escape }}",
-    "url": "{{ site.baseurl }}{{ post.url }}",
+    "url": "{{ post.url | relative_url }}",
     "categories": "{{ post.categories | join: ', '}}",
     "tags": "{{ post.tags | join: ', ' }}",
     "date": "{{ post.date }}",

assets/js/data/swcache.js

@@ -9,13 +9,7 @@ const resource = [
   /* --- CSS --- */
   '{{ "/assets/css/style.css" | relative_url }}',
 
-  /* --- JavaScripts --- */
-  {% assign js_path = "/assets/js" | relative_url %}
-  '{{ js_path }}/dist/home.min.js',
-  '{{ js_path }}/dist/page.min.js',
-  '{{ js_path }}/dist/post.min.js',
-  '{{ js_path }}/dist/categories.min.js',
-  '{{ js_path }}/data/search.json',
+  /* --- PWA --- */
   '{{ "/app.js" | relative_url }}',
   '{{ "/sw.js" | relative_url }}',
 
@@ -26,30 +20,27 @@ const resource = [
     '{{ tab.url | relative_url }}',
   {% endfor %}
 
-  /* --- Favicons --- */
-  {% assign favicon_path = "/assets/img/favicons" | relative_url %}
-
-  '{{ favicon_path }}/android-chrome-192x192.png',
-  '{{ favicon_path }}/android-chrome-512x512.png',
-  '{{ favicon_path }}/apple-touch-icon.png',
-  '{{ favicon_path }}/favicon-16x16.png',
-  '{{ favicon_path }}/favicon-32x32.png',
-  '{{ favicon_path }}/favicon.ico',
-  '{{ favicon_path }}/mstile-150x150.png',
-  '{{ favicon_path }}/site.webmanifest',
-  '{{ favicon_path }}/browserconfig.xml'
+  /* --- Favicons & compressed JS --- */
+  {% assign cache_list = site.static_files | where: 'swcache', true  %}
+  {% for file in cache_list %}
+    '{{ file.path | relative_url }}'{%- unless forloop.last -%},{%- endunless -%}
+  {% endfor %}
 
 ];
 
 /* The request url with below domain will be cached */
 const allowedDomains = [
-  {% if site.google_analytics.id != '' %}
+  {% if site.google_analytics.id != empty and site.google_analytics.id %}
     'www.googletagmanager.com',
     'www.google-analytics.com',
   {% endif %}
 
   '{{ site.url | split: "//" | last }}',
 
+  {% if site.img_cdn contains '//' and site.img_cdn %}
+    '{{ site.img_cdn | split: '//' | last | split: '/' | first }}',
+  {% endif %}
+
   'fonts.gstatic.com',
   'fonts.googleapis.com',
   'cdn.jsdelivr.net',

assets/js/dist/categories.min.js

@@ -1,6 +1,6 @@
 /*!
- * Chirpy v4.2.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v5.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
-$(function(){$(window).scroll(()=>{$(this).scrollTop()>50&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))}),$(function(){const o=$("#sidebar-trigger"),e=$("#search-trigger"),s=$("#search-cancel"),t=$("#search-cleaner"),a=$("#main"),l=$("#topbar-title"),n=$("#search-wrapper"),r=$("#search-result-wrapper"),d=$("#search-results"),i=$("#search-input"),c=$("#search-hints"),f=function(){let o=0;return{block(){o=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(o)},getOffset:()=>o}}(),u={on(){o.addClass("unloaded"),l.addClass("unloaded"),e.addClass("unloaded"),n.addClass("d-flex"),s.addClass("loaded")},off(){s.removeClass("loaded"),n.removeClass("d-flex"),o.removeClass("unloaded"),l.removeClass("unloaded"),e.removeClass("unloaded")}},p=function(){let o=!1;return{on(){o||(f.block(),r.removeClass("unloaded"),a.addClass("unloaded"),o=!0)},off(){o&&(d.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),r.addClass("unloaded"),t.removeClass("visible"),a.removeClass("unloaded"),f.release(),i.val(""),o=!1)},isVisible:()=>o}}();function h(){return s.hasClass("loaded")}e.click(function(){u.on(),p.on(),i.focus()}),s.click(function(){u.off(),p.off()}),i.focus(function(){n.addClass("input-focus")}),i.focusout(function(){n.removeClass("input-focus")}),i.on("keyup",function(o){8===o.keyCode&&""===i.val()?h()?c.removeClass("unloaded"):p.off():""!==i.val()&&(p.on(),t.hasClass("visible")||t.addClass("visible"),h()&&c.addClass("unloaded"))}),t.on("click",function(){i.val(""),h()?(c.removeClass("unloaded"),d.empty()):p.off(),i.focus(),t.removeClass("visible")})}),$(function(){const o=function(){let o=!1;const e=$("body");return{toggle(){!1===o?e.attr("sidebar-display",""):e.removeAttr("sidebar-display"),o=!o}}}();$("#sidebar-trigger").click(o.toggle),$("#mask").click(o.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const o=$("#topbar-wrapper"),e=$("#toc-wrapper"),s=$(".access"),t=$("#search-input");let a,l=0;const n=5,r=o.outerHeight();$(window).scroll(function(o){$("#topbar-title").is(":hidden")&&(a=!0)}),setInterval(function(){a&&(!function(){var a=$(this).scrollTop();Math.abs(l-a)<=n||(a>l&&a>r?(o.removeClass("topbar-down").addClass("topbar-up"),e.length>0&&e.removeClass("topbar-down"),s.length>0&&s.removeClass("topbar-down"),t.is(":focus")&&t.blur()):a+$(window).height()<$(document).height()&&(o.removeClass("topbar-up").addClass("topbar-down"),e.length>0&&e.addClass("topbar-down"),s.length>0&&s.addClass("topbar-down")),l=a)}(),a=!1)},250)}),$(function(){const o=$("#topbar-title"),e=$("div.post>h1"),s=o.text().trim();let t=e.length>0?e.text().trim():$("h1").text().trim();($("#page-category").length||$("#page-tag").length)&&/\s/.test(t)&&(t=t.replace(/[0-9]/g,"").trim()),$(window).scroll(function(){if($("#post-list").length||e.is(":hidden")||o.is(":hidden")||$("#sidebar.sidebar-expand").length)return!1;$(this).scrollTop()>=95?o.text()!==t&&o.text(t):o.text()!==s&&o.text(s)}),o.click(function(){$("body,html").animate({scrollTop:0},800)})}),$(function(){const o=$(".collapse");o.on("hide.bs.collapse",function(){const o="h_"+$(this).attr("id").substring("l_".length);o&&($(`#${o} .far.fa-folder-open`).attr("class","far fa-folder fa-fw"),$(`#${o} i.fas`).addClass("rotate"),$(`#${o}`).removeClass("hide-border-bottom"))}),o.on("show.bs.collapse",function(){const o="h_"+$(this).attr("id").substring("l_".length);o&&($(`#${o} .far.fa-folder`).attr("class","far fa-folder-open fa-fw"),$(`#${o} i.fas`).removeClass("rotate"),$(`#${o}`).addClass("hide-border-bottom"))})});
+$(function(){$(window).scroll(()=>{50<$(this).scrollTop()&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))});const LocaleHelper=function(){const e=$('meta[name="prefer-datetime-locale"]'),o=0<e.length?e.attr("content").toLowerCase():$("html").attr("lang").substr(0,2),t="data-ts",a="data-df";return{locale:()=>o,attrTimestamp:()=>t,attrDateFormat:()=>a,getTimestamp:e=>Number(e.attr(t)),getDateFormat:e=>e.attr(a)}}();$(function(){$(".mode-toggle").click(e=>{const o=$(e.target);let t=o.prop("tagName")==="button".toUpperCase()?o:o.parent();t.blur(),flipMode()})});const ScrollHelper=function(){const e=$("body"),o="data-topbar-visible",t=$("#topbar-wrapper").outerHeight();let a=0,r=!1,l=!1;return{hideTopbar:()=>e.attr(o,!1),showTopbar:()=>e.attr(o,!0),addScrollUpTask:()=>{a+=1,r=r||!0},popScrollUpTask:()=>--a,hasScrollUpTask:()=>0<a,topbarLocked:()=>!0===r,unlockTopbar:()=>r=!1,getTopbarHeight:()=>t,orientationLocked:()=>!0===l,lockOrientation:()=>l=!0,unLockOrientation:()=>l=!1}}();$(function(){const e=$("#sidebar-trigger"),o=$("#search-trigger"),t=$("#search-cancel"),a=$("#main"),r=$("#topbar-title"),l=$("#search-wrapper"),n=$("#search-result-wrapper"),s=$("#search-results"),i=$("#search-input"),c=$("#search-hints"),d=function(){let e=0;return{block(){e=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(e)},getOffset(){return e}}}(),p={on(){e.addClass("unloaded"),r.addClass("unloaded"),o.addClass("unloaded"),l.addClass("d-flex"),t.addClass("loaded")},off(){t.removeClass("loaded"),l.removeClass("d-flex"),e.removeClass("unloaded"),r.removeClass("unloaded"),o.removeClass("unloaded")}},u=function(){let e=!1;return{on(){e||(d.block(),n.removeClass("unloaded"),a.addClass("unloaded"),e=!0)},off(){e&&(s.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),n.addClass("unloaded"),a.removeClass("unloaded"),d.release(),i.val(""),e=!1)},isVisible(){return e}}}();function f(){return t.hasClass("loaded")}o.click(function(){p.on(),u.on(),i.focus()}),t.click(function(){p.off(),u.off()}),i.focus(function(){l.addClass("input-focus")}),i.focusout(function(){l.removeClass("input-focus")}),i.on("input",()=>{""===i.val()?f()?c.removeClass("unloaded"):u.off():(u.on(),f()&&c.addClass("unloaded"))})}),$(function(){var e=function(){const e="sidebar-display";let o=!1;const t=$("body");return{toggle(){!1===o?t.attr(e,""):t.removeAttr(e),o=!o}}}();$("#sidebar-trigger").click(e.toggle),$("#mask").click(e.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const o=$("#search-input"),t=ScrollHelper.getTopbarHeight();let e,a=0;function r(){0!==$(window).scrollTop()&&(ScrollHelper.lockOrientation(),ScrollHelper.hideTopbar())}screen.orientation?screen.orientation.onchange=()=>{var e=screen.orientation.type;"landscape-primary"!==e&&"landscape-secondary"!==e||r()}:$(window).on("orientationchange",()=>{$(window).width()<$(window).height()&&r()}),$(window).scroll(()=>{e=e||!0}),setInterval(()=>{e&&(function(){var e=$(this).scrollTop();if(!(Math.abs(a-e)<=t)){if(e>a)ScrollHelper.hideTopbar(),o.is(":focus")&&o.blur();else if(e+$(window).height()<$(document).height()){if(ScrollHelper.hasScrollUpTask())return;ScrollHelper.topbarLocked()?ScrollHelper.unlockTopbar():ScrollHelper.orientationLocked()?ScrollHelper.unLockOrientation():ScrollHelper.showTopbar()}a=e}}(),e=!1)},250)}),$(function(){var o="div.post>h1:first-of-type";const t=$(o),n=$("#topbar-title");if(0!==t.length&&!t.hasClass("dynamic-title")&&!n.is(":hidden")){const s=n.text().trim();let a=t.text().trim(),r=!1,l=0;($("#page-category").length||$("#page-tag").length)&&/\s/.test(a)&&(a=a.replace(/[0-9]/g,"").trim()),t.offset().top<$(window).scrollTop()&&n.text(a);let e=new IntersectionObserver(e=>{var o,t;r?(o=$(window).scrollTop(),t=l<o,l=o,e=e[0],t?0===e.intersectionRatio&&n.text(a):1===e.intersectionRatio&&n.text(s)):r=!0},{rootMargin:"-48px 0px 0px 0px",threshold:[0,1]});e.observe(document.querySelector(o)),n.click(function(){$("body,html").animate({scrollTop:0},800)})}}),$(function(){const e=$(".collapse");e.on("hide.bs.collapse",function(){var e="h_"+$(this).attr("id").substring("l_".length);e&&($(`#${e} .far.fa-folder-open`).attr("class","far fa-folder fa-fw"),$(`#${e} i.fas`).addClass("rotate"),$("#"+e).removeClass("hide-border-bottom"))}),e.on("show.bs.collapse",function(){var e="h_"+$(this).attr("id").substring("l_".length);e&&($(`#${e} .far.fa-folder`).attr("class","far fa-folder-open fa-fw"),$(`#${e} i.fas`).removeClass("rotate"),$("#"+e).addClass("hide-border-bottom"))})});

assets/js/dist/commons.min.js

@@ -1,6 +1,6 @@
 /*!
- * Chirpy v4.2.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v5.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
-$(function(){$(window).scroll(()=>{$(this).scrollTop()>50&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))}),$(function(){const e=$("#sidebar-trigger"),o=$("#search-trigger"),s=$("#search-cancel"),t=$("#search-cleaner"),a=$("#main"),l=$("#topbar-title"),n=$("#search-wrapper"),d=$("#search-result-wrapper"),r=$("#search-results"),i=$("#search-input"),c=$("#search-hints"),u=function(){let e=0;return{block(){e=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(e)},getOffset:()=>e}}(),p={on(){e.addClass("unloaded"),l.addClass("unloaded"),o.addClass("unloaded"),n.addClass("d-flex"),s.addClass("loaded")},off(){s.removeClass("loaded"),n.removeClass("d-flex"),e.removeClass("unloaded"),l.removeClass("unloaded"),o.removeClass("unloaded")}},f=function(){let e=!1;return{on(){e||(u.block(),d.removeClass("unloaded"),a.addClass("unloaded"),e=!0)},off(){e&&(r.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),d.addClass("unloaded"),t.removeClass("visible"),a.removeClass("unloaded"),u.release(),i.val(""),e=!1)},isVisible:()=>e}}();function h(){return s.hasClass("loaded")}o.click(function(){p.on(),f.on(),i.focus()}),s.click(function(){p.off(),f.off()}),i.focus(function(){n.addClass("input-focus")}),i.focusout(function(){n.removeClass("input-focus")}),i.on("keyup",function(e){8===e.keyCode&&""===i.val()?h()?c.removeClass("unloaded"):f.off():""!==i.val()&&(f.on(),t.hasClass("visible")||t.addClass("visible"),h()&&c.addClass("unloaded"))}),t.on("click",function(){i.val(""),h()?(c.removeClass("unloaded"),r.empty()):f.off(),i.focus(),t.removeClass("visible")})}),$(function(){const e=function(){let e=!1;const o=$("body");return{toggle(){!1===e?o.attr("sidebar-display",""):o.removeAttr("sidebar-display"),e=!e}}}();$("#sidebar-trigger").click(e.toggle),$("#mask").click(e.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const e=$("#topbar-wrapper"),o=$("#toc-wrapper"),s=$(".access"),t=$("#search-input");let a,l=0;const n=5,d=e.outerHeight();$(window).scroll(function(e){$("#topbar-title").is(":hidden")&&(a=!0)}),setInterval(function(){a&&(!function(){var a=$(this).scrollTop();Math.abs(l-a)<=n||(a>l&&a>d?(e.removeClass("topbar-down").addClass("topbar-up"),o.length>0&&o.removeClass("topbar-down"),s.length>0&&s.removeClass("topbar-down"),t.is(":focus")&&t.blur()):a+$(window).height()<$(document).height()&&(e.removeClass("topbar-up").addClass("topbar-down"),o.length>0&&o.addClass("topbar-down"),s.length>0&&s.addClass("topbar-down")),l=a)}(),a=!1)},250)}),$(function(){const e=$("#topbar-title"),o=$("div.post>h1"),s=e.text().trim();let t=o.length>0?o.text().trim():$("h1").text().trim();($("#page-category").length||$("#page-tag").length)&&/\s/.test(t)&&(t=t.replace(/[0-9]/g,"").trim()),$(window).scroll(function(){if($("#post-list").length||o.is(":hidden")||e.is(":hidden")||$("#sidebar.sidebar-expand").length)return!1;$(this).scrollTop()>=95?e.text()!==t&&e.text(t):e.text()!==s&&e.text(s)}),e.click(function(){$("body,html").animate({scrollTop:0},800)})});
+$(function(){$(window).scroll(()=>{50<$(this).scrollTop()&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))});const LocaleHelper=function(){const e=$('meta[name="prefer-datetime-locale"]'),o=0<e.length?e.attr("content").toLowerCase():$("html").attr("lang").substr(0,2),t="data-ts",a="data-df";return{locale:()=>o,attrTimestamp:()=>t,attrDateFormat:()=>a,getTimestamp:e=>Number(e.attr(t)),getDateFormat:e=>e.attr(a)}}();$(function(){$(".mode-toggle").click(e=>{const o=$(e.target);let t=o.prop("tagName")==="button".toUpperCase()?o:o.parent();t.blur(),flipMode()})});const ScrollHelper=function(){const e=$("body"),o="data-topbar-visible",t=$("#topbar-wrapper").outerHeight();let a=0,r=!1,l=!1;return{hideTopbar:()=>e.attr(o,!1),showTopbar:()=>e.attr(o,!0),addScrollUpTask:()=>{a+=1,r=r||!0},popScrollUpTask:()=>--a,hasScrollUpTask:()=>0<a,topbarLocked:()=>!0===r,unlockTopbar:()=>r=!1,getTopbarHeight:()=>t,orientationLocked:()=>!0===l,lockOrientation:()=>l=!0,unLockOrientation:()=>l=!1}}();$(function(){const e=$("#sidebar-trigger"),o=$("#search-trigger"),t=$("#search-cancel"),a=$("#main"),r=$("#topbar-title"),l=$("#search-wrapper"),n=$("#search-result-wrapper"),s=$("#search-results"),c=$("#search-input"),i=$("#search-hints"),d=function(){let e=0;return{block(){e=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(e)},getOffset(){return e}}}(),p={on(){e.addClass("unloaded"),r.addClass("unloaded"),o.addClass("unloaded"),l.addClass("d-flex"),t.addClass("loaded")},off(){t.removeClass("loaded"),l.removeClass("d-flex"),e.removeClass("unloaded"),r.removeClass("unloaded"),o.removeClass("unloaded")}},u=function(){let e=!1;return{on(){e||(d.block(),n.removeClass("unloaded"),a.addClass("unloaded"),e=!0)},off(){e&&(s.empty(),i.hasClass("unloaded")&&i.removeClass("unloaded"),n.addClass("unloaded"),a.removeClass("unloaded"),d.release(),c.val(""),e=!1)},isVisible(){return e}}}();function f(){return t.hasClass("loaded")}o.click(function(){p.on(),u.on(),c.focus()}),t.click(function(){p.off(),u.off()}),c.focus(function(){l.addClass("input-focus")}),c.focusout(function(){l.removeClass("input-focus")}),c.on("input",()=>{""===c.val()?f()?i.removeClass("unloaded"):u.off():(u.on(),f()&&i.addClass("unloaded"))})}),$(function(){var e=function(){const e="sidebar-display";let o=!1;const t=$("body");return{toggle(){!1===o?t.attr(e,""):t.removeAttr(e),o=!o}}}();$("#sidebar-trigger").click(e.toggle),$("#mask").click(e.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const o=$("#search-input"),t=ScrollHelper.getTopbarHeight();let e,a=0;function r(){0!==$(window).scrollTop()&&(ScrollHelper.lockOrientation(),ScrollHelper.hideTopbar())}screen.orientation?screen.orientation.onchange=()=>{var e=screen.orientation.type;"landscape-primary"!==e&&"landscape-secondary"!==e||r()}:$(window).on("orientationchange",()=>{$(window).width()<$(window).height()&&r()}),$(window).scroll(()=>{e=e||!0}),setInterval(()=>{e&&(function(){var e=$(this).scrollTop();if(!(Math.abs(a-e)<=t)){if(e>a)ScrollHelper.hideTopbar(),o.is(":focus")&&o.blur();else if(e+$(window).height()<$(document).height()){if(ScrollHelper.hasScrollUpTask())return;ScrollHelper.topbarLocked()?ScrollHelper.unlockTopbar():ScrollHelper.orientationLocked()?ScrollHelper.unLockOrientation():ScrollHelper.showTopbar()}a=e}}(),e=!1)},250)}),$(function(){var o="div.post>h1:first-of-type";const t=$(o),n=$("#topbar-title");if(0!==t.length&&!t.hasClass("dynamic-title")&&!n.is(":hidden")){const s=n.text().trim();let a=t.text().trim(),r=!1,l=0;($("#page-category").length||$("#page-tag").length)&&/\s/.test(a)&&(a=a.replace(/[0-9]/g,"").trim()),t.offset().top<$(window).scrollTop()&&n.text(a);let e=new IntersectionObserver(e=>{var o,t;r?(o=$(window).scrollTop(),t=l<o,l=o,e=e[0],t?0===e.intersectionRatio&&n.text(a):1===e.intersectionRatio&&n.text(s)):r=!0},{rootMargin:"-48px 0px 0px 0px",threshold:[0,1]});e.observe(document.querySelector(o)),n.click(function(){$("body,html").animate({scrollTop:0},800)})}});

assets/js/dist/misc.min.js

@@ -0,0 +1,6 @@
+/*!
+ * Chirpy v5.1.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * © 2019 Cotes Chung
+ * MIT Licensed
+ */
+$(function(){$(window).scroll(()=>{50<$(this).scrollTop()&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))});const LocaleHelper=function(){const e=$('meta[name="prefer-datetime-locale"]'),t=0<e.length?e.attr("content").toLowerCase():$("html").attr("lang").substr(0,2),o="data-ts",a="data-df";return{locale:()=>t,attrTimestamp:()=>o,attrDateFormat:()=>a,getTimestamp:e=>Number(e.attr(o)),getDateFormat:e=>e.attr(a)}}();$(function(){$(".mode-toggle").click(e=>{const t=$(e.target);let o=t.prop("tagName")==="button".toUpperCase()?t:t.parent();o.blur(),flipMode()})});const ScrollHelper=function(){const e=$("body"),t="data-topbar-visible",o=$("#topbar-wrapper").outerHeight();let a=0,r=!1,l=!1;return{hideTopbar:()=>e.attr(t,!1),showTopbar:()=>e.attr(t,!0),addScrollUpTask:()=>{a+=1,r=r||!0},popScrollUpTask:()=>--a,hasScrollUpTask:()=>0<a,topbarLocked:()=>!0===r,unlockTopbar:()=>r=!1,getTopbarHeight:()=>o,orientationLocked:()=>!0===l,lockOrientation:()=>l=!0,unLockOrientation:()=>l=!1}}();$(function(){const e=$("#sidebar-trigger"),t=$("#search-trigger"),o=$("#search-cancel"),a=$("#main"),r=$("#topbar-title"),l=$("#search-wrapper"),n=$("#search-result-wrapper"),s=$("#search-results"),i=$("#search-input"),c=$("#search-hints"),d=function(){let e=0;return{block(){e=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(e)},getOffset(){return e}}}(),p={on(){e.addClass("unloaded"),r.addClass("unloaded"),t.addClass("unloaded"),l.addClass("d-flex"),o.addClass("loaded")},off(){o.removeClass("loaded"),l.removeClass("d-flex"),e.removeClass("unloaded"),r.removeClass("unloaded"),t.removeClass("unloaded")}},u=function(){let e=!1;return{on(){e||(d.block(),n.removeClass("unloaded"),a.addClass("unloaded"),e=!0)},off(){e&&(s.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),n.addClass("unloaded"),a.removeClass("unloaded"),d.release(),i.val(""),e=!1)},isVisible(){return e}}}();function f(){return o.hasClass("loaded")}t.click(function(){p.on(),u.on(),i.focus()}),o.click(function(){p.off(),u.off()}),i.focus(function(){l.addClass("input-focus")}),i.focusout(function(){l.removeClass("input-focus")}),i.on("input",()=>{""===i.val()?f()?c.removeClass("unloaded"):u.off():(u.on(),f()&&c.addClass("unloaded"))})}),$(function(){var e=function(){const e="sidebar-display";let t=!1;const o=$("body");return{toggle(){!1===t?o.attr(e,""):o.removeAttr(e),t=!t}}}();$("#sidebar-trigger").click(e.toggle),$("#mask").click(e.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const t=$("#search-input"),o=ScrollHelper.getTopbarHeight();let e,a=0;function r(){0!==$(window).scrollTop()&&(ScrollHelper.lockOrientation(),ScrollHelper.hideTopbar())}screen.orientation?screen.orientation.onchange=()=>{var e=screen.orientation.type;"landscape-primary"!==e&&"landscape-secondary"!==e||r()}:$(window).on("orientationchange",()=>{$(window).width()<$(window).height()&&r()}),$(window).scroll(()=>{e=e||!0}),setInterval(()=>{e&&(function(){var e=$(this).scrollTop();if(!(Math.abs(a-e)<=o)){if(e>a)ScrollHelper.hideTopbar(),t.is(":focus")&&t.blur();else if(e+$(window).height()<$(document).height()){if(ScrollHelper.hasScrollUpTask())return;ScrollHelper.topbarLocked()?ScrollHelper.unlockTopbar():ScrollHelper.orientationLocked()?ScrollHelper.unLockOrientation():ScrollHelper.showTopbar()}a=e}}(),e=!1)},250)}),$(function(){var t="div.post>h1:first-of-type";const o=$(t),n=$("#topbar-title");if(0!==o.length&&!o.hasClass("dynamic-title")&&!n.is(":hidden")){const s=n.text().trim();let a=o.text().trim(),r=!1,l=0;($("#page-category").length||$("#page-tag").length)&&/\s/.test(a)&&(a=a.replace(/[0-9]/g,"").trim()),o.offset().top<$(window).scrollTop()&&n.text(a);let e=new IntersectionObserver(e=>{var t,o;r?(t=$(window).scrollTop(),o=l<t,l=t,e=e[0],o?0===e.intersectionRatio&&n.text(a):1===e.intersectionRatio&&n.text(s)):r=!0},{rootMargin:"-48px 0px 0px 0px",threshold:[0,1]});e.observe(document.querySelector(t)),n.click(function(){$("body,html").animate({scrollTop:0},800)})}}),$(function(){dayjs.locale(LocaleHelper.locale()),dayjs.extend(window.dayjs_plugin_localizedFormat),$(`[${LocaleHelper.attrTimestamp()}]`).each(function(){const e=dayjs.unix(LocaleHelper.getTimestamp($(this)));var t=LocaleHelper.getDateFormat($(this)),t=e.format(t);$(this).text(t),$(this).removeAttr(LocaleHelper.attrTimestamp()),$(this).removeAttr(LocaleHelper.attrDateFormat())})});