Merge branch 'master' into production

resolves #595

.commitlintrc.json

@@ -0,0 +1,5 @@
+{
+  "rules": {
+    "body-max-line-length": [0, "always"]
+  }
+}

.github/CONTRIBUTING.md

@@ -1,6 +1,6 @@
 # How to Contribute
 
-We want to thank you for sparing time to improve this project! Here are some guidelines for contributing：
+We'd like 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.
 
@@ -9,34 +9,57 @@ To ensure that the blog design is not confused, this project does not accept sug
 Generally, contribute to the project by:
 
 1. Fork this project on GitHub and clone it locally.
-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_.
+2. Create a new branch from the default branch and give it a descriptive name (format: `feature/<add-new-feat>` / `fix/<fix-a-bug>`).
+3. After completing the development, submit a new _Pull Request_. Note that the commit message must follow the [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/), otherwise it will fail the PR check.
 
 ## Modifying JavaScript
 
-If your contribution involves JS modification, please read the following sections.
+If your contribution involves JavaScript 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.
+If you need to add comments to the inline JavaScript (the code between the HTML 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, which 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).
+If you need to add/change/delete the JavaScript in the directory `_javascript/`, setting up [`Node.js`](https://nodejs.org/) and [`npx`](https://www.npmjs.com/package/npx) is a requirement. And then install the development dependencies:
 
-During development, real-time debugging can be performed through the following commands:
+```console
+$ npm i
+```
+
+During JavaScript development, real-time debugging can be performed through the following commands:
+
+Firstly, start a Jekyll server:
 
 ```console
 $ bash tools/run.sh
 ```
 
-Open another terminal tab and run:
+And then open a new terminal tab and run:
 
 ```console
-$ gulp dev # Type 'Ctrl + C' to stop
+# Type 'Ctrl + C' to stop
+$ npx gulp dev
 ```
 
-After debugging, run the command `gulp` (without any argument) will automatically output the compressed files to the directory `assests/js/dist/`.
+After debugging, run the command `npx gulp` (without any argument) will automatically output the compressed files to the directory `assets/js/dist/`.
+
+## Verify the commit messages
+
+If you want to make sure your commits pass the CI check, you can refer to the following steps.
+
+Install `commitlint` & `husky`:
+
+```console
+$ npm i -g @commitlint/{cli,config-conventional} husky
+```
+
+And then enable `husky`:
+
+```console
+$ husky install
+```
 
 ---
 

.github/ISSUE_TEMPLATE/bug_report.md

@@ -35,14 +35,15 @@ Steps to reproduce the behavior:
 
 <!-- If applicable, add screenshots to help explain your problem. -->
 
-### Software
+### Environment
 
-<!-- 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` -->
+| Command                           | Version |
+|-----------------------------------|---------|
+| `ruby -v`                         |         |
+| `gem -v`                          |         |
+| `bundle -v`                       |         |
+| `bundle exec jekyll -v`           |         |
+| `bundle info jekyll-theme-chirpy` |         |
 
 ### Desktop
 

.github/workflows/ci.yml

@@ -1,16 +1,16 @@
-name: 'Continuous Integration'
+name: 'CI'
 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:
@@ -18,23 +18,20 @@ on:
       - '**'
 
 jobs:
-  ci:
-    runs-on: ${{ matrix.os }}
+  build:
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest]
-
+        ruby: [2.5, 2.6, 2.7, 3]
     steps:
       - name: Checkout
         uses: actions/checkout@v2
         with:
           fetch-depth: 0  # for posts's lastmod
-
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.7
+          ruby-version: ${{ matrix.ruby }}
           bundler-cache: true
-
       - name: Test Site
         run: bash tools/deploy.sh --dry-run

.github/workflows/commitlint.yml

@@ -0,0 +1,11 @@
+name: Lint Commit Messages
+on: pull_request
+
+jobs:
+  commitlint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - uses: wagoid/commitlint-github-action@v4

.gitignore

@@ -4,6 +4,9 @@
 !.editorconfig
 !.nojekyll
 !.travis.yml
+!.husky
+!.commitlintrc.json
+!.versionrc.json
 
 # bundler cache
 _site

.gitmodules

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

.husky/commit-msg

@@ -0,0 +1,4 @@
+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+npx --no -- commitlint -x $(npm root -g)/@commitlint/config-conventional --edit

.travis.yml

@@ -1,42 +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)
 
-branches:
-  only:
-    - /^release\/(\d)+(\.(\d)+){1}$/
+# Overriding to drop the `--development` flag which requires the Gemfile.lock at build
+install: bundle install --jobs=3 --retry=3 --path=vendor/bundle
+
+before_script: git -C "$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 = production
+  - name: Starter
+    if: branch = production
+  - name: Docs
+    if: branch = docs
 
 notifications:
   email:

.versionrc.json

@@ -0,0 +1,20 @@
+{
+  "skip": {
+    "commit": true,
+    "tag": true
+  },
+  "types": [
+    {
+      "type": "feat",
+      "section": "Features"
+    },
+    {
+      "type": "fix",
+      "section": "Bug Fixes"
+    },
+    {
+      "type": "perf",
+      "section": "Improvements"
+    }
+  ]
+}

CHANGELOG.md

@@ -0,0 +1,44 @@
+# Changelog
+
+All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
+
+## [5.2.0](https://github.com/cotes2020/jekyll-theme-chirpy/compare/v5.1.0...v5.2.0) (2022-06-09)
+
+
+### Features
+
+* add es-ES support to locales ([#533](https://github.com/cotes2020/jekyll-theme-chirpy/issues/533)) ([efe75ad](https://github.com/cotes2020/jekyll-theme-chirpy/commit/efe75adf2784956afb7a0b67f6634b146d9cb03b))
+* add fr-FR support to locales ([#582](https://github.com/cotes2020/jekyll-theme-chirpy/issues/582)) ([94e8144](https://github.com/cotes2020/jekyll-theme-chirpy/commit/94e81447afa457b1a6b7e8f487c47502803556d7))
+* add Vietnamese locale ([#517](https://github.com/cotes2020/jekyll-theme-chirpy/issues/517)) ([171463d](https://github.com/cotes2020/jekyll-theme-chirpy/commit/171463d76da9b7bc25dd327b8f0a868ea79e388b))
+* add pt-BR support to locales ([c2c503f](https://github.com/cotes2020/jekyll-theme-chirpy/commit/c2c503f63336884282b6bda4ec0703d6ae76771b))
+* add option to turn off PWA ([#527](https://github.com/cotes2020/jekyll-theme-chirpy/issues/527)) ([106c981](https://github.com/cotes2020/jekyll-theme-chirpy/commit/106c981bac71e7434204a77e1f0c9c61d6eb1509))
+* **PWA:** add Service Worker update notification ([d127183](https://github.com/cotes2020/jekyll-theme-chirpy/commit/d127183b9774f6321e409acdb66bf8a85d8814be))
+* support showing description of preview image ([2bd6efa](https://github.com/cotes2020/jekyll-theme-chirpy/commit/2bd6efa95a174ac44e30a3af1e57e6f40d6e0e3a))
+
+
+### Bug Fixes
+
+* alt is not a valid attribute for 'a' tag ([58928db](https://github.com/cotes2020/jekyll-theme-chirpy/commit/58928dbc9068db4e4cda4371eeae1865920dce6a))
+* assets URL is missing `baseurl` in self-hosted mode ([#591](https://github.com/cotes2020/jekyll-theme-chirpy/issues/591)) ([54124d5](https://github.com/cotes2020/jekyll-theme-chirpy/commit/54124d5134995fce52e4c2fc0a5d4d1743d6264d))
+* correct the `twitter:creator` of Twitter summary card ([96a16c8](https://github.com/cotes2020/jekyll-theme-chirpy/commit/96a16c868ede51e7dfa412de63ffa1e5a49add7f))
+* correctly URL encode share links ([4c1c8d8](https://github.com/cotes2020/jekyll-theme-chirpy/commit/4c1c8d8b0eacecbbaa2d522bbdd6430f350ff760)), closes [#496](https://github.com/cotes2020/jekyll-theme-chirpy/issues/496)
+* follow paginate_path config for pagination ([6900d9f](https://github.com/cotes2020/jekyll-theme-chirpy/commit/6900d9f2bc9380cbda4babf611c6eeff345291af))
+* force checkout of `gh-pages` branch ([#544](https://github.com/cotes2020/jekyll-theme-chirpy/issues/544)) ([5402523](https://github.com/cotes2020/jekyll-theme-chirpy/commit/5402523ae52a3740bcc15df0b226b2612644945d))
+* horizontal scroll for long equations ([#545](https://github.com/cotes2020/jekyll-theme-chirpy/issues/545)) ([30787fc](https://github.com/cotes2020/jekyll-theme-chirpy/commit/30787fc4cf151e955bb7afc26dfd859f1a06fce6))
+* p is not allowed in span ([4f590e2](https://github.com/cotes2020/jekyll-theme-chirpy/commit/4f590e2bba0639751771211bc0d357828ae70404))
+* remove whitespace from avatar URL ([#537](https://github.com/cotes2020/jekyll-theme-chirpy/issues/537)) ([0542b51](https://github.com/cotes2020/jekyll-theme-chirpy/commit/0542b5149c8287dca60e37f46ee36f31b43455e4))
+* resume the preview image SEO tag ([#529](https://github.com/cotes2020/jekyll-theme-chirpy/issues/529)) ([b8d1bcd](https://github.com/cotes2020/jekyll-theme-chirpy/commit/b8d1bcd3dea0abd1afef7ef154a4501fbb18938d))
+* script code should be in head or body, not in between ([2103191](https://github.com/cotes2020/jekyll-theme-chirpy/commit/2103191b2faf714a8e4418c7c347a1f942b51af8))
+* spurious header closing tags ([59e9557](https://github.com/cotes2020/jekyll-theme-chirpy/commit/59e955745f02f9b57c65af70b0979cd4a98bf53f))
+* table bypass refactoring when it contains IAL ([#519](https://github.com/cotes2020/jekyll-theme-chirpy/issues/519)) ([5d85ccb](https://github.com/cotes2020/jekyll-theme-chirpy/commit/5d85ccb9943aac88dbbefebe1c2234cdcbae5c53))
+* **theme mode:** `SCSS` syntax error ([#588](https://github.com/cotes2020/jekyll-theme-chirpy/issues/588)) ([76a1b6a](https://github.com/cotes2020/jekyll-theme-chirpy/commit/76a1b6a068c369138422dcd18ba08ec8cc3749a6))
+* use `jsonify` to generate valid json ([#521](https://github.com/cotes2020/jekyll-theme-chirpy/issues/521)) ([dd9d5a7](https://github.com/cotes2020/jekyll-theme-chirpy/commit/dd9d5a7207b746342d07176d8969dc4f2c380bf2))
+* when the `site.img_cdn` is set to the local path, the preview-image path loses the `baseurl` ([9cefe58](https://github.com/cotes2020/jekyll-theme-chirpy/commit/9cefe58993d9ea3a3a28424e7ffd8e0911567c5c))
+
+
+### Improvements
+
+* avoid post pageviews from shifting while loading ([135a16f](https://github.com/cotes2020/jekyll-theme-chirpy/commit/135a16f13ee783d9308669ff9a824847a73c951c))
+* avoid the layout shift for post datetime ([6d35f5f](https://github.com/cotes2020/jekyll-theme-chirpy/commit/6d35f5f8da044cfad071628bb53776de03efaae4))
+* **categories:** support singular and plural forms of locale ([#595](https://github.com/cotes2020/jekyll-theme-chirpy/issues/595)) ([35cadf9](https://github.com/cotes2020/jekyll-theme-chirpy/commit/35cadf969dd0161ee62503e242c545f006f7072b))
+* improve the responsive design for ultrawide screens ([#540](https://github.com/cotes2020/jekyll-theme-chirpy/issues/540)) ([5d6e8c5](https://github.com/cotes2020/jekyll-theme-chirpy/commit/5d6e8c5ef6aa71b4d2600c5305f6e8ba540557f7))

README.md

@@ -12,7 +12,7 @@
 
   [**Live Demo →**](https://cotes2020.github.io/chirpy-demo)
 
-  [![Devices Mockup](https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images@f4e0354b674f65a53b8917f0f786ed2956898cc1/commons/devices-mockup.png)](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>
 
@@ -28,7 +28,7 @@
 - Syntax Highlighting
 - Mathematical Expressions
 - Mermaid Diagram & Flowchart
-- Disqus/Utterances Comments
+- Disqus/Utterances/Giscus Comments
 - Search
 - Atom Feeds
 - Google Analytics
@@ -38,7 +38,7 @@
 
 ## Quick Start
 
-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`.
+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.
 
 ### Step 1. Creating a New Site
 
@@ -69,11 +69,11 @@ $ docker run -it --rm \
     jekyll serve
 ```
 
-After a while, the local service will be published at _<http://127.0.0.1:4000>_.
+After a while, navigate to the site at <http://localhost:4000>.
 
 ## Documentation
 
-For more details on usage, please refer to the tutorial on the [demo website](https://cotes2020.github.io/chirpy-demo/). At the same time, a copy of the tutorial is also available on the [Wiki](https://github.com/cotes2020/jekyll-theme-chirpy/wiki). Please note that the tutorial is based on the [latest release](https://github.com/cotes2020/jekyll-theme-chirpy/releases), and the features of the default branch are 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
 
@@ -83,9 +83,9 @@ Welcome to report bugs, improve code quality or submit a new feature. For more i
 
 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.
+: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
 

_config.yml

@@ -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
@@ -79,7 +80,7 @@ theme_mode:   # [light|dark]
 # will be added to all image (site avatar & posts' images) paths starting with '/'
 #
 # e.g. 'https://cdn.com'
-img_cdn: 'https://cdn.jsdelivr.net/gh/cotes2020/chirpy-images@f4e0354b674f65a53b8917f0f786ed2956898cc1'
+img_cdn: 'https://raw.githubusercontent.com/cotes2020/chirpy-images/main'
 
 # the avatar on sidebar, support local or CORS resources
 avatar: '/commons/avatar.jpg'
@@ -96,6 +97,26 @@ comments:
   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]
+
+pwa:
+  enabled: true   # the option for PWA feature
 
 paginate: 10
 
@@ -118,8 +139,7 @@ collections:
     sort_by: order
 
 defaults:
-  -
-    scope:
+  - scope:
       path: ''          # An empty string here means all files in the project
       type: posts
     values:
@@ -129,18 +149,24 @@ 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/
+  - scope:
+      path: assets/img/favicons
+    values:
+      swcache: true
+  - scope:
+      path: assets/js/dist
+    values:
+      swcache: true
 
 sass:
   style: compressed
@@ -158,7 +184,6 @@ exclude:
   - '*.gem'
   - '*.gemspec'
   - tools
-  - docs
   - README.md
   - LICENSE
   - gulpfile.js

_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/authors.yml

@@ -0,0 +1,17 @@
+## Template › https://github.com/jekyll/jekyll-seo-tag/blob/master/docs/advanced-usage.md#setting-author-url
+# -------------------------------------
+# {author_id}:
+#   name: {full name}
+#   twitter: {twitter_of_author}
+#   url: {homepage_of_author}
+# -------------------------------------
+
+cotes:
+  name: Cotes Chung
+  twitter: cotes2020
+  url: https://github.com/cotes2020/
+
+sille_bille:
+  name: Dinesh Prasanth Moluguwan Krishnamoorthy
+  twitter: dinesh_MKD
+  url: https://github.com/SilleBille/

_data/locales/en.yml

@@ -20,21 +20,13 @@ tabs:
 search:
   hint: search
   cancel: Cancel
-  no_results: Oops! No result founds.
+  no_results: Oops! No results found.
 
 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:
@@ -52,9 +44,10 @@ meta: Powered by :PLATFORM with :THEME theme.
 
 not_found:
   statment: Sorry, we've misplaced that URL or it's pointing to something that doesn't exist.
-  hint_template: :HEAD_BAK to try finding it again, or search for it on the :ARCHIVES_PAGE.
-  head_back: Head back Home
-  archives_page: Archives page
+
+notification:
+  update_found: A new version of content is available.
+  update: Update
 
 # ----- Posts related labels -----
 
@@ -62,11 +55,6 @@ post:
   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:
@@ -87,5 +75,9 @@ post:
 
 # categories page
 categories:
-  category_measure: categories
-  post_measure: posts
+  category_measure:
+    singular: category
+    plural: categories
+  post_measure:
+    singular: post
+    plural: posts

_data/locales/es-ES.yml

@@ -0,0 +1,79 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: Entrada
+  category: Categoría
+  tag: Etiqueta
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: Inicio
+  categories: Categorías
+  tags: Etiquetas
+  archives: Archivo
+  about: Acerca de
+
+# the text displayed in the search bar & search results
+search:
+  hint: Buscar
+  cancel: Cancelar
+  no_results: ¡Oops! No se encuentran resultados.
+
+panel:
+  lastmod: Actualizado recientemente
+  trending_tags: Etiquetas populares
+  toc: Contenido
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: Esta entrada está licenciada bajo :LICENSE_NAME por el autor.
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: Algunos derechos reservados.
+  verbose: >-
+    Salvo que se indique explícitamente, las entradas de este blog están licenciadas
+    bajo la Creative Commons Attribution 4.0 International (CC BY 4.0) License por el autor.
+
+meta: Hecho con :PLATFORM usando el tema :THEME.
+
+not_found:
+  statment: Lo sentimos, hemos perdido esa URL o apunta a algo que no existe.
+
+notification:
+  update_found: Hay una nueva versión de contenido disponible.
+  update: Actualizar
+
+# ----- Posts related labels -----
+
+post:
+  written_by: Por
+  posted: Publicado
+  updated: Actualizado
+  words: palabras
+  pageview_measure: visitas
+  read_time:
+    unit: min
+    prompt: ' de lectura'
+  relate_posts: Lecturas adicionales
+  share: Compartir
+  button:
+    next: Nuevo
+    previous: Anterior
+    copy_code:
+      succeed: ¡Copiado!
+    share_link:
+      title: Copiar enlace
+      succeed: ¡Enlace copiado!
+  # pinned prompt of posts list on homepage
+  pin_prompt: Fijado
+
+# categories page
+categories:
+  category_measure: categorias
+  post_measure: entradas

_data/locales/fr-FR.yml

@@ -0,0 +1,79 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: Post
+  category: Catégorie
+  tag: Tag
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: Accueil
+  categories: Catégories
+  tags: Tags
+  archives: Archives
+  about: A propos de
+
+# the text displayed in the search bar & search results
+search:
+  hint: recherche
+  cancel: Annuler
+  no_results: Oups ! Aucun résultat trouvé.
+
+panel:
+  lastmod: Récemment mis à jour
+  trending_tags: Tags tendance
+  toc: Contenu
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: Cet article est sous licence :LICENSE_NAME par l'auteur.
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: Certains droits réservés.
+  verbose: >-
+    Sauf mention contraire, les articles de ce site sont publiés sous licence
+    sous la licence Creative Commons Attribution 4.0 International (CC BY 4.0) par l'auteur.
+
+meta: Propulsé par :PLATFORM avec le thème :THEME
+
+not_found:
+  statment: Désolé, nous avons égaré cette URL ou elle pointe vers quelque chose qui n'existe pas.
+
+notification:
+  update_found: Une nouvelle version du contenu est disponible.
+  update: Mise à jour
+
+# ----- Posts related labels -----
+
+post:
+  written_by: Par
+  posted: Posté
+  updated: Mis à jour
+  words: mots
+  pageview_measure: vues
+  read_time:
+    unit: min
+    prompt: lire
+  relate_posts: Autres lectures
+  share: Partager
+  button:
+    next: Plus récent
+    previous: Plus ancien
+    copy_code:
+      succeed: Copié !
+    share_link:
+      title: Copier le lien
+      succeed: Lien copié avec succès !
+  # pinned prompt of posts list on homepage
+  pin_prompt: Épinglé
+
+# categories page
+categories:
+  category_measure: catégories
+  post_measure: posts

_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:
@@ -52,9 +44,10 @@ meta: Didukung oleh :PLATFORM dengan tema :THEME.
 
 not_found:
   statment: Maaf, kami gagal menemukan URL itu atau memang mengarah ke sesuatu yang tidak ada.
-  hint_template: :HEAD_BAK untuk mencoba mencari kembali, atau cari di :ARCHIVES_PAGE.
-  head_back: Kembali ke Beranda
-  archives_page: Halaman Arsip
+
+notification:
+  update_found: Versi konten baru tersedia.
+  update: Perbarui
 
 # ----- Posts related labels -----
 
@@ -62,11 +55,6 @@ post:
   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:

_data/locales/ko-KR.yml

@@ -27,14 +27,6 @@ panel:
   trending_tags: 인기 태그
   toc: 바로가기
 
-#  The liquid date format › http://strftime.net/
-date_format:
-  tooltip: '%F, %R %z'
-  post:
-    long: '%Y년 %m월 %d일'
-    short: '%m월 %d일'
-    archive_month: '%b월'
-
 copyright:
   # Shown at the bottom of the post
   license:
@@ -52,9 +44,10 @@ 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
+
+notification:
+  update_found: 새 버전의 콘텐츠를 사용할 수 있습니다.
+  update: 업데이트
 
 # ----- Posts related labels -----
 
@@ -62,11 +55,6 @@ post:
   written_by: By
   posted: 게시
   updated: 업데이트
-  timeago:
-    day: 일 전
-    hour: 시간 전
-    minute: 분 전
-    just_now: 방금
   words: 단어
   pageview_measure: 조회
   read_time:

_data/locales/my-MM.yml

@@ -0,0 +1,79 @@
+# 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။
+
+notification:
+  update_found: အကြောင်းအရာဗားရှင်းအသစ်ကို ရနိုင်ပါပြီ။
+  update: အပ်ဒိတ်
+
+# ----- 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/pt-BR.yml

@@ -0,0 +1,79 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: Post
+  category: Categoria
+  tag: Tag
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: Home
+  categories: Categorias
+  tags: Tags
+  archives: Arquivos
+  about: Sobre
+
+# the text displayed in the search bar & search results
+search:
+  hint: Buscar
+  cancel: Cancelar
+  no_results: Oops! Nenhum resultado encontrado.
+
+panel:
+  lastmod: Atualizados recentemente
+  trending_tags: Trending Tags
+  toc: Conteúdo
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: Esta postagem está licenciada sob :LICENSE_NAME pelo autor.
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: Alguns direitos reservados.
+  verbose: >-
+    Exceto onde indicado de outra forma, as postagens do blog neste site são licenciadas sob a 
+    Creative Commons Attribution 4.0 International (CC BY 4.0) License pelo autor.
+
+meta: Feito com :PLATFORM usando o tema :THEME.
+
+not_found:
+  statment: Desculpe, a página não foi encontrada.
+
+notification:
+  update_found: Uma nova versão do conteúdo está disponível.
+  update: atualização
+
+# ----- Posts related labels -----
+
+post:
+  written_by: Por
+  posted: Postado em
+  updated: Atualizado
+  words: palavras
+  pageview_measure: visualizações
+  read_time:
+    unit: min
+    prompt: " de leitura"
+  relate_posts: Leia também
+  share: Compartilhar
+  button:
+    next: Próximo
+    previous: Anterior
+    copy_code:
+      succeed: Copiado!
+    share_link:
+      title: Copie o link
+      succeed: Link copiado com sucesso!
+  # pinned prompt of posts list on homepage
+  pin_prompt: Fixado
+
+# categories page
+categories:
+  category_measure: categorias
+  post_measure: posts

_data/locales/ru-RU.yml

@@ -0,0 +1,79 @@
+# 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.
+
+notification:
+  update_found: Доступна новая версия контента.
+  update: Обновлять
+
+# ----- 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 +1,79 @@
+# 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.
+
+notification:
+  update_found: Доступна нова версія вмісту.
+  update: Оновлення
+
+# ----- 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/vi-VN.yml

@@ -0,0 +1,77 @@
+# The layout text of site
+
+# ----- Commons label -----
+
+layout:
+  post: Bài viết
+  category: Danh mục
+  tag: Thẻ
+
+# The tabs of sidebar
+tabs:
+  # format: <filename_without_extension>: <value>
+  home: Trang chủ
+  categories: Các danh mục
+  tags: Các thẻ
+  archives: Lưu trữ
+  about: Giới thiệu
+
+# the text displayed in the search bar & search results
+search:
+  hint: tìm kiếm
+  cancel: Hủy
+  no_results: Không có kết quả tìm kiếm.
+
+panel:
+  lastmod: Mới cập nhật
+  trending_tags: Các thẻ thịnh hành
+  toc: Mục lục
+
+copyright:
+  # Shown at the bottom of the post
+  license:
+    template: Bài viết này được cấp phép bởi tác giả theo giấy phép :LICENSE_NAME.
+    name: CC BY 4.0
+    link: https://creativecommons.org/licenses/by/4.0/
+
+  # Displayed in the footer
+  brief: Một số quyền được bảo lưu.
+  verbose: >-
+    Trừ khi có ghi chú khác, các bài viết đăng trên trang này được cấp phép bởi tác giả theo giấy phép Creative Commons Attribution 4.0 International (CC BY 4.0).
+meta: Trang web này được tạo bởi :PLATFORM với chủ đề :THEME.
+
+not_found:
+  statment: Xin lỗi, chúng tôi đã đặt nhầm URL hoặc đường dẫn trỏ đến một trang nào đó không tồn tại.
+
+notification:
+  update_found: Đã có phiên bản mới của nội dung.
+  update: Cập nhật
+
+# ----- Posts related labels -----
+
+post:
+  written_by: Viết bởi
+  posted: Đăng lúc
+  updated: Cập nhật lúc
+  words: từ
+  pageview_measure: lượt xem
+  read_time:
+    unit: phút
+    prompt: đọc
+  relate_posts: Bài viết liên quan
+  share: Chia sẻ
+  button:
+    next: Mới hơn
+    previous: Cũ hơn
+    copy_code:
+      succeed: Đã sao chép!
+    share_link:
+      title: Sao chép đường dẫn
+      succeed: Đã sao chép đường dẫn thành công!
+  # pinned prompt of posts list on homepage
+  pin_prompt: Bài ghim
+
+# categories page
+categories:
+  category_measure: danh mục
+  post_measure: bài viết

_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:
@@ -51,9 +43,10 @@ meta: 本站由 :PLATFORM 生成，采用 :THEME 主题。
 
 not_found:
   statment: 抱歉，我们放错了该 URL，或者它指向了不存在的内容。
-  hint_template: :HEAD_BAK尝试再次查找它，或在:ARCHIVES_PAGE上搜索它。
-  head_back: 返回主页
-  archives_page: 归档页面
+
+notification:
+  update_found: 发现新版本的内容。
+  update: 更新
 
 # ----- Posts related labels -----
 
@@ -61,11 +54,6 @@ post:
   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:

_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/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

@@ -14,8 +14,8 @@
     const darkTheme = "github-dark";
     let initTheme = lightTheme;
 
-    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 = darkTheme;
     }

_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/datetime.html

@@ -0,0 +1,21 @@
+<!--
+  Date format snippet
+  See: ${JS_ROOT}/utils/locale-dateime.js
+-->
+
+{% assign wrap_elem = include.wrap | default: 'em' %}
+
+{% if site.prefer_datetime_locale == 'en' or lang == 'en' %}
+  {% assign df_strftime = '%b %e, %Y' %}
+  {% assign df_dayjs = 'll' %}
+{% else %}
+  {% assign df_strftime = '%F' %}
+  {% assign df_dayjs = 'YYYY-MM-DD' %}
+{% endif %}
+
+<{{ wrap_elem }} class="{% if include.class %}{{ include.class }}{% endif %}"
+    data-ts="{{ include.date | date: '%s' }}"
+    data-df="{{ df_dayjs }}"
+    {% if include.tooltip %}data-toggle="tooltip" data-placement="bottom"{% endif %}>
+  {{ include.date | date: df_strftime }}
+</{{ wrap_elem }}>

_includes/footer.html

@@ -1,9 +1,7 @@
-<!--
-  The Footer
--->
+<!-- The Footer -->
 
-<footer class="d-flex w-100 justify-content-center">
-  <div class="d-flex justify-content-between align-items-center text-muted">
+<footer class="row pl-3 pr-3">
+  <div class="col-12 d-flex justify-content-between align-items-center text-muted pl-0 pr-0">
     <div class="footer-left">
       <p class="mb-0">
         © {{ 'now' | date: "%Y" }}
@@ -33,5 +31,6 @@
       </p>
     </div>
 
-  </div> <!-- div.d-flex -->
+  </div>
+
 </footer>

_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 }}">
@@ -24,7 +23,30 @@
 
   {% endif %}
 
-  {% seo title=false %}
+  {% capture seo_tags %}
+    {% seo title=false %}
+  {% endcapture %}
+
+  {% if site.img_cdn and seo_tags contains 'og:image' %}
+    {% assign properties = 'og:image,twitter:image' | split: ',' %}
+
+    {% for prop in properties %}
+      {% if site.img_cdn contains '//' %}
+        <!-- `site.img_cdn` is a cross-origin URL -->
+        {% capture target %}<meta property="{{ prop }}" content="{{ site.url }}{% endcapture %}
+        {% capture replacement %}<meta property="{{ prop }}" content="{{ site.img_cdn }}{% endcapture %}
+      {% else %}
+        <!-- `site.img_cdn` is a local file path -->
+        {% capture target %}<meta property="{{ prop }}" content="{{ site.url }}{{ site.baseurl }}{% endcapture %}
+        {% assign replacement = target | append: site.img_cdn %}
+      {% endif %}
+
+      {% assign seo_tags = seo_tags | replace: target, replacement %}
+
+    {% endfor %}
+  {% endif %}
+
+  {{ seo_tags }}
 
   <title>
   {%- unless page.layout == "home" -%}
@@ -35,12 +57,24 @@
 
   {% 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 | relative_url }}">
+
+  {% 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 +83,34 @@
 
     {% 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 | relative_url}}">
 
   <!-- 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 | relative_url }}">
 
-  {% 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 | relative_url }}">
+  {% endif %}
+
+  {% if page.layout == 'page' or page.layout == 'post' %}
+    <!-- Manific Popup -->
+    <link rel="stylesheet" href="{{ site.data.assets[origin].magnific-popup.css | relative_url }}">
+  {% endif %}
 
   <!-- JavaScript -->
 
-  <script src="https://cdn.jsdelivr.net/npm/jquery@3/dist/jquery.min.js"></script>
+  <script src="{{ site.data.assets[origin].jquery.js | relative_url }}"></script>
 
+  {% unless site.theme_mode %}
+    {% include mode-toggle.html %}
+  {% endunless %}
 </head>

_includes/js-selector.html

@@ -7,14 +7,43 @@
 {% 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 | relative_url }}"></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 +79,25 @@
     }
   };
   </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 | relative_url }}"></script>
+  <script id="MathJax-script" async src="{{ site.data.assets[origin].mathjax.js | relative_url }}">
   </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 | relative_url }}"></script>
 
 {% if jekyll.environment == 'production' %}
   <!-- PWA -->
-  <script defer src="{{ '/app.js' | relative_url }}"></script>
+  {% if site.pwa.enabled %}
+    <script defer src="{{ '/app.js' | relative_url }}"></script>
+  {% else %}
+    <script defer src="{{ '/unregister.js' | relative_url }}"></script>
+  {% endif %}
 
   <!-- 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/mermaid.html

@@ -2,7 +2,7 @@
   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 | relative_url }}"></script>
 
 <script>
   $(function() {
@@ -33,8 +33,8 @@
 
     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";
     }

_includes/mode-toggle.html

@@ -5,6 +5,7 @@
 <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"; }
@@ -70,17 +71,17 @@
     }
 
     setDark() {
-      $('html').attr(ModeToggle.MODE_KEY, ModeToggle.DARK_MODE);
+      $('html').attr(ModeToggle.MODE_ATTR, ModeToggle.DARK_MODE);
       sessionStorage.setItem(ModeToggle.MODE_KEY, ModeToggle.DARK_MODE);
     }
 
     setLight() {
-      $('html').attr(ModeToggle.MODE_KEY, ModeToggle.LIGHT_MODE);
+      $('html').attr(ModeToggle.MODE_ATTR, ModeToggle.LIGHT_MODE);
       sessionStorage.setItem(ModeToggle.MODE_KEY, ModeToggle.LIGHT_MODE);
     }
 
     clearMode() {
-      $('html').removeAttr(ModeToggle.MODE_KEY);
+      $('html').removeAttr(ModeToggle.MODE_ATTR);
       sessionStorage.removeItem(ModeToggle.MODE_KEY);
     }
 

_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/post-nav.html

@@ -9,10 +9,10 @@
     <p>{{ page.previous.title }}</p>
   </a>
   {% else %}
-  <span class="btn btn-outline-primary disabled"
+  <div class="btn btn-outline-primary disabled"
     prompt="{{ site.data.locales[lang].post.button.previous }}">
     <p>-</p>
-  </span>
+  </div>
   {% endif %}
 
   {% if page.next.url %}
@@ -21,10 +21,10 @@
     <p>{{ page.next.title }}</p>
   </a>
   {% else %}
-  <span class="btn btn-outline-primary disabled"
+  <div class="btn btn-outline-primary disabled"
     prompt="{{ site.data.locales[lang].post.button.next }}">
     <p>-</p>
-  </span>
+  </div>
   {% endif %}
 
 </div>

_includes/post-paginator.html

@@ -2,7 +2,7 @@
   The paginator for post list on HomgPage.
 -->
 
-<ul class="pagination align-items-center mt-4 mb-0 pl-lg-2">
+<ul class="pagination align-items-center mt-4 mb-5 pl-lg-2">
   <!-- left arrow -->
   {% if paginator.previous_page %}
     {% assign prev_url = paginator.previous_page_path | relative_url %}
@@ -47,7 +47,7 @@
     {% if show %}
       <!-- show number -->
       <li class="page-item {% if i == paginator.page %} active{% endif %}">
-        <a class="page-link btn-box-shadow" href="{{ site.baseurl }}/{% if i > 1%}page{{ i }}/{% endif %}">{{ i }}</a>
+        <a class="page-link btn-box-shadow" href="{% if i > 1 %}{{ site.paginate_path | replace: ':num', i | relative_url }}{% else %}{{ '/' | relative_url }}{% endif %}">{{ i }}</a>
       </li>
     {% else %}
       <!-- hide number -->

_includes/post-sharing.html

@@ -6,7 +6,8 @@
   <span class="share-label text-muted mr-1">{{ site.data.locales[lang].post.share }}</span>
   <span class="share-icons">
     {% capture title %}{{ page.title }} - {{ site.title }}{% endcapture %}
-    {% assign url = page.url | absolute_url %}
+    {% assign title = title | url_encode %}
+    {% assign url = page.url | absolute_url | url_encode %}
 
     {% for share in site.data.share.platforms %}
       {% assign link = share.link | replace: 'TITLE', title | replace: 'URL', url %}
@@ -19,7 +20,7 @@
     <i id="copy-link" class="fa-fw fas fa-link small"
         data-toggle="tooltip" data-placement="top"
         title="{{ site.data.locales[lang].post.button.share_link.title }}"
-        title-succeed="{{ site.data.locales[lang].post.button.share_link.succeed }}">
+        data-title-succeed="{{ site.data.locales[lang].post.button.share_link.succeed }}">
     </i>
 
   </span>

_includes/refactor-content.html

@@ -9,10 +9,11 @@
   we suround the markdown table with `<div class="table-wrapper">` and `</div>`
 -->
 
-{% if _content contains '<table>' %}
+{% if _content contains '<table' %}
   {% assign _content = _content
-    | replace: '<table>', '<div class="table-wrapper"><table>'
+    | replace: '<table', '<div class="table-wrapper"><table'
     | replace: '</table>', '</table></div>'
+    | replace: '<code><div class="table-wrapper">', '<code>'
     | replace: '</table></div></code>', '</table></code>'
   %}
 {% endif %}
@@ -91,7 +92,11 @@
 
         <!-- Add CDN URL -->
         {% if site.img_cdn %}
-          {% assign _src_prefix = site.img_cdn %}
+          {% if site.img_cdn contains '//' %}
+            {% assign _src_prefix = site.img_cdn %}
+          {% else %}
+            {% assign _src_prefix = site.img_cdn | relative_url %}
+          {% endif %}
         {% else %}
           {% assign _src_prefix = site.baseurl %}
         {% endif %}
@@ -165,13 +170,13 @@
       {% endif %}
 
       {% capture _label %}
-        <span label-text="{{ _label_text | strip }}"><i class="{{ _label_icon }}"></i></span>
+        <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">'
           | append: _label
-          | append: '<button aria-label="copy" title-succeed="'
+          | 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>'
@@ -205,15 +210,14 @@
       {% endif %}
 
       {% assign id = snippet | split: '"' | first %}
-      {% capture anchor %}<a href="#{{ id }}" class="anchor"><i class="fas fa-hashtag"></i></a>{% endcapture %}
+      {% 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 _start_index = left | size %}
-      {% assign _end_index = snippet | size | minus: 1 %}
-      {% assign right = snippet | slice: _start_index, _end_index %}
+      {% 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
+          | append: left | append: anchor | append: right
       %}
 
     {% endfor %}
@@ -225,6 +229,54 @@
 
 {% 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 -->
 
 {{ _content }}

_includes/related-posts.html

@@ -60,7 +60,6 @@
 {% assign less = TOTAL_SIZE | minus: index_list.size %}
 
 {% if less > 0 %}
-
   {% for i in (0..last_index) %}
     {% assign post = site.posts[i] %}
     {% if post.url != page.url  %}
@@ -74,10 +73,8 @@
       {% endunless %}
     {% endif %}
   {% endfor %}
-
 {% endif %}
 
-
 {% if index_list.size > 0 %}
   <div id="related-posts" class="mt-5 mb-2 mb-sm-4">
     <h3 class="pt-2 mt-1 mb-4 ml-1"
@@ -89,7 +86,7 @@
       <div class="card">
         <a href="{{ post.url | relative_url }}">
           <div class="card-body">
-            {% include timeago.html date=post.date class="small" %}
+            {% include datetime.html date=post.date class="small" %}
             <h3 class="pt-0 mt-1 mb-3" data-toc-skip>{{ post.title }}</h3>
             <div class="text-muted small">
               <p>

_includes/search-loader.html

@@ -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 | relative_url }}"></script>
 
 <script>
 SimpleJekyllSearch({

_includes/sidebar.html

@@ -2,21 +2,21 @@
   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">
-        {% if site.avatar != '' and site.avatar %}
+      <a href="{{ '/' | relative_url }}" class="mx-auto">
+        {% if site.avatar != empty and site.avatar %}
           {% capture avatar_url %}
-            {%- if site.avatar contains '://' -%}
+            {% if site.avatar contains '://' %}
               {{ site.avatar }}
-            {%- elsif site.img_cdn != '' and site.img_cdn -%}
+            {% elsif site.img_cdn != empty and site.img_cdn %}
               {{ site.avatar | prepend: site.img_cdn }}
-            {%- else -%}
+            {% else %}
               {{ site.avatar | relative_url }}
-            {%- endif -%}
+            {% endif %}
           {% endcapture %}
-          <img src="{{ avatar_url }}" alt="avatar" onerror="this.style.display='none'">
+          <img src="{{ avatar_url | strip }}" alt="avatar" onerror="this.style.display='none'">
         {% endif %}
       </a>
     </div>

_includes/timeago.html

@@ -1,26 +0,0 @@
-<!--
-  Date format snippet
-  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 %}
-
-<em class="timeago{% if include.class %} {{ include.class }}{% endif %}"
-    date="{{ include.date }}"
-    {% 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 -%}
-</em>

_includes/toc.html

@@ -7,7 +7,7 @@
 
 {% if enable_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>
+<script src="{{ site.data.assets[origin].bootstrap-toc.js | relative_url }}"></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>

_includes/topbar.html

@@ -2,8 +2,8 @@
   The Top Bar
 -->
 
-<div id="topbar-wrapper" class="row justify-content-center topbar-down">
-  <div id="topbar" class="col-11 d-flex h-100 align-items-center justify-content-between">
+<div id="topbar-wrapper">
+  <div id="topbar" class="container d-flex align-items-center justify-content-between h-100 pl-3 pr-3 pl-md-4 pr-md-4">
     <span id="breadcrumb">
 
     {% assign paths = page.url | split: '/' %}
@@ -50,7 +50,7 @@
     <div id="topbar-title">
       {% if page.layout == 'home' %}
         {{- site.data.locales[lang].title | default: site.title -}}
-      {% elsif page.collection == 'tabs' or page.dynamic_title %}
+      {% 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>

_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 $panel = $("#panel-wrapper");
-  const $searchInput = $("#search-input");
-
-  const CLASS_TOPBAR_UP = "topbar-up";
-  const CLASS_TOPBAR_DOWN = "topbar-down";
-  const ATTR_TOC_SCROLLING_UP = "toc-scrolling-up"; // topbar locked
-
-  let didScroll;
-  let lastScrollTop = 0;
-
-  const delta = $topbarWrapper.outerHeight();
-  const topbarHeight = $topbarWrapper.outerHeight();
-
-  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
-      if (st > topbarHeight) {
-        $topbarWrapper.removeClass(CLASS_TOPBAR_DOWN).addClass(CLASS_TOPBAR_UP);
-        $panel.removeClass(CLASS_TOPBAR_DOWN);
-
-        if ($searchInput.is(":focus")) {
-          $searchInput.blur(); /* remove focus */
-        }
-      }
-    } else  {// Scroll up
-      // did not reach the bottom of the document, i.e., still have space to scroll up
-      if (st + $(window).height() < $(document).height()) {
-        let tocScrollingUp = $topbarWrapper.attr(ATTR_TOC_SCROLLING_UP);
-        if (typeof tocScrollingUp !== "undefined") {
-          if (tocScrollingUp === "false") {
-            $topbarWrapper.removeAttr(ATTR_TOC_SCROLLING_UP);
-          }
-
-        } else {
-          $topbarWrapper.removeClass(CLASS_TOPBAR_UP).addClass(CLASS_TOPBAR_DOWN);
-          $panel.addClass(CLASS_TOPBAR_DOWN);
-        }
-      }
-    }
-
-    lastScrollTop = st;
-  }
-
-  $(window).scroll(function(event) {
-    if ($("#topbar-title").is(":hidden")) {
-      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 v5.0.1 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v5.2.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */

_javascript/utils/clipboard.js

@@ -10,6 +10,8 @@ $(function() {
   const btnSelector = '.code-header>button';
   const ICON_SUCCESS = 'fas fa-check';
   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) {
@@ -53,12 +55,12 @@ $(function() {
   const ICON_DEFAULT = getIcon(btnSelector);
 
   function showTooltip(btn) {
-    const succeedTitle = $(btn).attr('title-succeed');
-    $(btn).attr('data-original-title', succeedTitle).tooltip('show');
+    const succeedTitle = $(btn).attr(ATTR_TITLE_SUCCEED);
+    $(btn).attr(ATTR_TITLE_ORIGIN, succeedTitle).tooltip('show');
   }
 
   function hideTooltip(btn) {
-    $(btn).tooltip('hide').removeAttr('data-original-title');
+    $(btn).tooltip('hide').removeAttr(ATTR_TITLE_ORIGIN);
   }
 
   function setSuccessIcon(btn) {
@@ -115,14 +117,14 @@ $(function() {
 
     // Switch tooltip title
 
-    const defaultTitle = target.attr('data-original-title');
-    const succeedTitle = target.attr('title-succeed');
+    const defaultTitle = target.attr(ATTR_TITLE_ORIGIN);
+    const succeedTitle = target.attr(ATTR_TITLE_SUCCEED);
 
-    target.attr('data-original-title', succeedTitle).tooltip('show');
+    target.attr(ATTR_TITLE_ORIGIN, succeedTitle).tooltip('show');
     lock(target);
 
     setTimeout(() => {
-      target.attr('data-original-title', defaultTitle);
+      target.attr(ATTR_TITLE_ORIGIN, defaultTitle);
       unlock(target);
     }, TIMEOUT);
 

_javascript/utils/locale-datetime.js

@@ -0,0 +1,45 @@
+/**
+ * Update month/day to locale datetime
+ *
+ * Requirement: <https://github.com/iamkun/dayjs>
+ */
+
+/* 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) => $elem.attr(attrDateFormat)
+  };
+
+}());
+
+$(function() {
+  dayjs.locale(LocaleHelper.locale());
+  dayjs.extend(window.dayjs_plugin_localizedFormat);
+
+  $(`[${LocaleHelper.attrTimestamp()}]`).each(function () {
+    const date = dayjs.unix(LocaleHelper.getTimestamp($(this)));
+    const text = date.format(LocaleHelper.getDateFormat($(this)));
+    $(this).text(text);
+    $(this).removeAttr(LocaleHelper.attrTimestamp());
+    $(this).removeAttr(LocaleHelper.attrDateFormat());
+
+    // setup tooltips
+    const tooltip = $(this).attr('data-toggle');
+    if (typeof tooltip === 'undefined' || tooltip !== 'tooltip') {
+      return;
+    }
+
+    const tooltipText = date.format('llll'); // see: https://day.js.org/docs/en/display/format#list-of-localized-formats
+    $(this).attr('data-original-title', tooltipText);
+  });
+});

_javascript/utils/smooth-scroll.js

@@ -8,94 +8,89 @@
 */
 
 $(function() {
-  const $topbarWrapper = $("#topbar-wrapper");
-  const topbarHeight = $topbarWrapper.outerHeight();
   const $topbarTitle = $("#topbar-title");
-
-  const ATTR_TOC_SCROLLING = "toc-scrolling-up";
-  const SCROLL_MARK = "scroll-focus";
   const REM = 16; // in pixels
-  let tocScrollUpCount = 0;
+  const ATTR_SCROLL_FOCUS = "scroll-focus";
 
   $("a[href*='#']")
     .not("[href='#']")
     .not("[href='#0']")
     .click(function(event) {
-      if (this.pathname.replace(/^\//, "") === location.pathname.replace(/^\//, "")) {
-        if (location.hostname === this.hostname) {
-          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);
+      if (this.pathname.replace(/^\//, "") !==
+            location.pathname.replace(/^\//, "")) {
+        return;
+      }
 
-          let parent = $(this).parent().prop("tagName");
-          let isAnchor = RegExp(/^H\d/).test(parent);
-          let isMobileViews = !$topbarTitle.is(":hidden");
+      if (location.hostname !== this.hostname) {
+        return;
+      }
 
-          if (typeof $target !== "undefined") {
-            event.preventDefault();
+      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);
 
-            if (history.pushState) { /* add hash to URL */
-              history.pushState(null, null, hash);
-            }
+      let isMobileViews = $topbarTitle.is(":visible");
+      let isPortrait = $(window).width() < $(window).height();
 
-            let curOffset = isAnchor? $(this).offset().top : $(window).scrollTop();
-            let destOffset = $target.offset().top -= REM / 2;
+      if (typeof $target === "undefined") {
+        return;
+      }
 
-            if (destOffset < curOffset) { // scroll up
-              if (!isAnchor && !toFootnote) { // trigger by ToC item
-                if (!isMobileViews) { // on desktop/tablet screens
-                  $topbarWrapper.removeClass("topbar-down").addClass("topbar-up");
-                  // Send message to `${JS_ROOT}/commons/topbar-switch.js`
-                  $topbarWrapper.attr(ATTR_TOC_SCROLLING, true);
-                  tocScrollUpCount += 1;
-                }
-              }
+      event.preventDefault();
 
-              if ((isAnchor || toFootnoteRef) && isMobileViews) {
-                destOffset -= topbarHeight;
-              }
-            }
+      if (history.pushState) { /* add hash to URL */
+        history.pushState(null, null, hash);
+      }
 
-            $("html").animate({
-              scrollTop: destOffset
-            }, 500, () => {
-              $target.focus();
+      let curOffset = $(window).scrollTop();
+      let destOffset = $target.offset().top -= REM / 2;
 
-              /* clean up old scroll mark */
-              if ($(`[${SCROLL_MARK}=true]`).length) {
-                $(`[${SCROLL_MARK}=true]`).attr(SCROLL_MARK, false);
-              }
+      if (destOffset < curOffset) { // scroll up
+        ScrollHelper.hideTopbar();
+        ScrollHelper.addScrollUpTask();
 
-              /* Clean :target links */
-              if ($(":target").length) { /* element that visited by the URL with hash */
-                $(":target").attr(SCROLL_MARK, false);
-              }
+        if (isMobileViews && isPortrait) {
+          destOffset -= ScrollHelper.getTopbarHeight();
+        }
 
-              /* set scroll mark to footnotes */
-              if (toFootnote || toFootnoteRef) {
-                $target.attr(SCROLL_MARK, true);
-              }
-
-              if ($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 */
-              }
-
-              if (typeof $topbarWrapper.attr(ATTR_TOC_SCROLLING) !== "undefined") {
-                tocScrollUpCount -= 1;
-
-                if (tocScrollUpCount <= 0) {
-                  $topbarWrapper.attr(ATTR_TOC_SCROLLING, "false");
-                }
-              }
-            });
-          }
+      } 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

@@ -1,77 +0,0 @@
-/*
- * Calculate the Timeago
- */
-
-$(function() {
-  const timeagoElem = $(".timeago");
-  let tasks = timeagoElem.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");
-
-  function timeago(date, initDate) {
-    let now = new Date();
-    let past = new Date(date);
-
-    if (past.getFullYear() !== now.getFullYear()
-        || past.getMonth() !== now.getMonth()) {
-      return initDate;
-    }
-
-    let seconds = Math.floor((now - past) / 1000);
-
-    let day = Math.floor(seconds / 86400);
-    if (day >= 1) {
-      return ` ${day} ${dPrompt}`;
-    }
-
-    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;
-  }
-
-  function updateTimeago() {
-    $(".timeago").each(function() {
-      if ($(this)[0].hasAttribute("date") === false) {
-        tasks -= 1;
-        return;
-      }
-
-      let date = $(this).attr("date");
-      let initDate = $(this).text();
-      let relativeDate = timeago(date, initDate);
-
-      if (relativeDate === initDate) {
-        $(this).removeAttr("date");
-      } else {
-        $(this).text(relativeDate);
-      }
-
-    });
-
-    if (tasks === 0 && typeof intervalId !== "undefined") {
-      clearInterval(intervalId); /* stop interval */
-    }
-    return tasks;
-  }
-
-  if (tasks === 0) {
-    return;
-  }
-
-  if (updateTimeago() > 0) { /* run immediately */
-    intervalId = setInterval(updateTimeago, 60000); /* run every minute */
-  }
-
-});

_layouts/archives.html

@@ -5,8 +5,15 @@ layout: page
 
 {% include lang.html %}
 
-<div id="archives" class="pl-xl-2">
+{% if site.prefer_datetime_locale == 'en' or lang == 'en' %}
+  {% assign df_strftime_m = '%b' %}
+  {% assign df_dayjs_m = 'MMM' %}
+{% else %}
+  {% assign df_strftime_m = '/ %m' %}
+  {% assign df_dayjs_m = '/ MM' %}
+{% endif %}
 
+<div id="archives" class="pl-xl-2">
 {% for post in site.posts %}
   {% capture this_year %}{{ post.date | date: "%Y" }}{% endcapture %}
   {% capture pre_year %}{{ post.previous.date | date: "%Y" }}{% endcapture %}
@@ -18,11 +25,13 @@ 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="{{ df_dayjs_m }}">
+          {{ post.date | date: df_strftime_m }}
+        </span>
         <a href="{{ post.url | relative_url }}">{{ post.title }}</a>
       </div>
     </li>

_layouts/categories.html

@@ -47,10 +47,24 @@ layout: page
         <span class="text-muted small font-weight-light">
           {% if sub_categories_size > 0 %}
             {{ sub_categories_size }}
-            {{ site.data.locales[lang].categories.category_measure }},
+            {% if sub_categories_size > 1 %}
+              {{ site.data.locales[lang].categories.category_measure.plural
+                | default: site.data.locales[lang].categories.category_measure }}
+            {% else %}
+              {{ site.data.locales[lang].categories.category_measure.singular
+                | default: site.data.locales[lang].categories.category_measure }}
+            {% endif %},
+          {% endif %}
+
+          {{ top_posts_size }}
+
+          {% if top_posts_size > 1 %}
+            {{ site.data.locales[lang].categories.post_measure.plural
+              | default: site.data.locales[lang].categories.post_measure }}
+          {% else %}
+            {{ site.data.locales[lang].categories.post_measure.singular
+              | default: site.data.locales[lang].categories.post_measure }}
           {% endif %}
-            {{ top_posts_size }}
-            {{ site.data.locales[lang].categories.post_measure }}
         </span>
       </span>
 
@@ -83,7 +97,14 @@ layout: page
           {% assign posts_size = site.categories[sub_category] | size %}
           <span class="text-muted small font-weight-light">
             {{ posts_size }}
-            {{ site.data.locales[lang].categories.post_measure }}
+
+            {% if posts_size > 1 %}
+              {{ site.data.locales[lang].categories.post_measure.plural
+                | default: site.data.locales[lang].categories.post_measure }}
+            {% else %}
+              {{ site.data.locales[lang].categories.post_measure.singular
+                | default: site.data.locales[lang].categories.post_measure }}
+            {% endif %}
           </span>
         </li>
         {% endfor %}

_layouts/category.html

@@ -13,13 +13,11 @@ 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>
+      {% include datetime.html date=post.date wrap='span' class='text-muted small' %}
     </li>
     {% endfor %}
   </ul>

_layouts/default.html

@@ -7,9 +7,11 @@ 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 %}
 
@@ -17,18 +19,14 @@ layout: compress
 
   {% include head.html %}
 
-  {% unless site.theme_mode %}
-    {% include mode-toggle.html %}
-  {% endunless %}
-
-  <body data-spy="scroll" data-target="#toc">
+  <body data-spy="scroll" data-target="#toc" data-topbar-visible="true">
 
     {% include sidebar.html %}
 
     {% include topbar.html %}
 
-    <div id="main-wrapper">
-      <div id="main">
+    <div id="main-wrapper" class="d-flex justify-content-center">
+      <div id="main" class="container pl-xl-4 pr-xl-4">
 
         {{ content }}
 
@@ -50,6 +48,23 @@ layout: compress
       <i class="fas fa-angle-up"></i>
     </a>
 
+    {% if site.pwa.enabled %}
+      <div id="notification" class="toast" role="alert" aria-live="assertive" aria-atomic="true"
+        data-animation="true" data-autohide="false">
+        <div class="toast-header">
+          <button type="button" class="ml-2 ml-auto close" data-dismiss="toast" aria-label="Close">
+            <span aria-hidden="true">&times;</span>
+          </button>
+        </div>
+        <div class="toast-body text-center pt-0">
+          <p class="pl-2 pr-2 mb-3">{{ site.data.locales[lang].notification.update_found }}</p>
+          <button type="button" class="btn btn-primary" aria-label="Update">
+            {{ site.data.locales[lang].notification.update }}
+          </button>
+        </div>
+      </div>
+    {% endif %}
+
     {% include search-loader.html %}
 
     {% include js-selector.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: "" %}
 
@@ -23,7 +23,6 @@ layout: page
   {% assign pinned_num = 0 %}
 {% endif %}
 
-
 <!-- Get default posts -->
 
 {% assign default_beg = offset | minus: pinned.size %}
@@ -58,15 +57,11 @@ layout: page
     </div>
 
     <div class="post-meta text-muted d-flex">
-
       <div class="mr-auto">
+
         <!-- posted date -->
         <i class="far fa-calendar fa-fw"></i>
-        {% include timeago.html date=post.date tooltip=true %}
-
-        <!-- time to read -->
-        <i class="far fa-clock fa-fw"></i>
-        {% include read-time.html content=post.content %}
+        {% include datetime.html date=post.date %}
 
         <!-- categories -->
         {% if post.categories.size > 0 %}
@@ -78,6 +73,7 @@ layout: page
           {% endfor %}
           </span>
         {% endif %}
+
       </div>
 
       {% if post.pin %}

_layouts/page.html

@@ -4,11 +4,13 @@ layout: default
 
 {% include lang.html %}
 
+{% include assets-origin.html %}
+
 <div class="row">
 
   <!-- 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">
+  <div id="core-wrapper" class="col-12 col-lg-11 col-xl-9 pr-xl-4">
+    <div class="post pl-1 pr-1 pl-md-2 pr-md-2">
 
     {% capture _content %}
       {% if layout.refactor or page.layout == 'page' %}
@@ -34,7 +36,7 @@ layout: default
   </div> <!-- #core-wrapper -->
 
   <!-- pannel -->
-  <div id="panel-wrapper" class="col-xl-3 pl-2 text-muted topbar-down">
+  <div id="panel-wrapper" class="col-xl-3 pl-2 text-muted">
 
     <div class="access">
       {% include update-list.html %}
@@ -52,13 +54,11 @@ layout: default
 <!-- tail -->
 {% if layout.tail_includes %}
 <div class="row">
-  <div class="col-12 col-lg-11 col-xl-8">
-    <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 id="tail-wrapper" class="col-12 col-lg-11 col-xl-9 pl-3 pr-3 pr-xl-4">
+    {% for _include in layout.tail_includes %}
+      {% assign _include_path = _include | append: '.html' %}
+      {% include {{ _include_path }} %}
+    {% endfor %}
   </div>
-</div> <!-- .row -->
+</div>
 {% endif %}

_layouts/post.html

@@ -11,12 +11,31 @@ tail_includes:
 
 {% include lang.html %}
 
-{% 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" }}"
+<h1 data-toc-skip>{{ page.title }}</h1>
+
+<div class="post-meta text-muted">
+    <!-- published date -->
+    <span>
+      {{ site.data.locales[lang].post.posted }}
+      {% include datetime.html date=page.date tooltip=true %}
+    </span>
+
+    <!-- lastmod date -->
+    {% if page.last_modified_at %}
+    <span>
+      {{ site.data.locales[lang].post.updated }}
+      {% include datetime.html date=page.last_modified_at tooltip=true %}
+    </span>
+    {% endif %}
+
+  {% if page.image.path %}
+    {% capture bg %}
+      {% unless page.image.no_bg %}{{ 'bg' }}{% endunless %}
+    {% endcapture %}
+
+    <div class="mt-3 mb-3">
+      <img src="{{ page.image.path }}" class="preview-img {{ bg | strip }}"
+        alt="{{ page.image.alt | default: "Preview Image" }}"
 
       {% if page.image.width %}
         width="{{ page.image.width }}"
@@ -29,52 +48,38 @@ tail_includes:
       {% elsif page.image.h %}
         height="{{ page.image.h }}"
       {% endif %}>
-{% endif %}
 
-<h1 data-toc-skip>{{ page.title }}</h1>
+      {% if page.image.alt %}
+        <figcaption class="pt-2 pb-2">{{ page.image.alt }}</figcaption>
+      {% endif %}
 
-<div class="post-meta text-muted">
+    </div>
+  {% endif %}
 
-  <!-- author -->
-  <div>
-    {% capture author_name %}{{ page.author.name | default: site.social.name }}{% endcapture %}
-    {% assign author_link = nil %}
+  <div class="d-flex justify-content-between">
+    <!-- author -->
+    <span>
+      {% capture author_name %}{{ site.data.authors[page.author].name | default: site.social.name }}{% endcapture %}
+      {% assign author_link = nil %}
 
-    {% if page.author.link %}
-      {% assign author_link = page.author.link %}
-    {% elsif author_name == site.social.name %}
-      {% assign author_link = site.social.links[0] %}
-    {% endif %}
+      {% if page.author %}
+        {% assign author_link = site.data.authors[page.author].url %}
+      {% 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 %}
+      {{ site.data.locales[lang].post.written_by }}
+
+      <em>
+        {% if author_link %}
+          <a href="{{ author_link }}">{{ author_name }}</a>
+        {% else %}
         {{ author_name }}
-      {% endif %}
-    </em>
-  </div>
+        {% endif %}
+      </em>
+    </span>
 
-  <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>
@@ -84,6 +89,9 @@ tail_includes:
         {{ site.data.locales[lang].post.pageview_measure }}
       </span>
       {% endif %}
+
+      <!-- read time -->
+      {% include read-time.html content=content prompt=true %}
     </div>
 
   </div> <!-- .d-flex -->

_layouts/tag.html

@@ -12,13 +12,11 @@ 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>
+      {% include datetime.html date=post.date wrap='span' class='text-muted small' %}
     </li>
     {% endfor %}
   </ul>

_layouts/tags.html

@@ -14,7 +14,9 @@ layout: page
 
   {% for t in sorted_tags %}
     <div>
-      <a class="tag" href="{{ site.baseurl }}/tags/{{ t | slugify | url_encode }}/">{{ t }}<span class="text-muted">{{ site.tags[t].size }}</span></a>
+      <a class="tag" href="{{ t | slugify | url_encode | prepend: '/tags/' | append: '/' | relative_url }}">
+        {{ t }}<span class="text-muted">{{ site.tags[t].size }}</span>
+      </a>
     </div>
   {% endfor %}
 

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

@@ -1,17 +1,16 @@
 ---
 title: Text and Typography
-author:
-  name: Cotes Chung
-  link: https://github.com/cotes2020
+author: cotes
 date: 2019-08-08 11:33:00 +0800
 categories: [Blogging, Demo]
 tags: [typography]
 math: true
 mermaid: true
 image:
-  src: /commons/devices-mockup.png
+  path: /commons/devices-mockup.png
   width: 800
   height: 500
+  alt: Responsive rendering of Chirpy theme on multiple devices.
 ---
 
 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.
@@ -76,7 +75,21 @@ Moon
 
 ## 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
 
@@ -154,6 +167,10 @@ $$ x = {-b \pm \sqrt{b^2-4ac} \over 2a} $$
 
 This is an example of `Inline Code`.
 
+## Filepath
+
+Here is the `/path/to/the/file.extend`{: .filepath}.
+
 ## Code block
 
 ### Common

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

@@ -1,8 +1,6 @@
 ---
 title: Writing a New Post
-author:
-  name: Cotes Chung
-  link: https://github.com/cotes2020
+author: cotes
 date: 2019-08-08 14:10:00 +0800
 categories: [Blogging, Tutorial]
 tags: [writing]
@@ -13,7 +11,7 @@ This post will guide you how to write a post on _Chirpy_ theme. Even if you have
 
 ## 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`. 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.
+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
 
@@ -28,11 +26,12 @@ 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 the 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
 
-In order to accurately record the release date of a post, you should not only set up the `timezone` of _\_config.yml_ but also provide the post's timezone in variable `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
 
@@ -49,17 +48,30 @@ tags: [bee]
 
 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:
 
+Add author information in `_data/authors.yml` (If your website doesn't have this file, don't hesitate to create one.)
+
+```yaml
+<author_id>:
+  name: <full name>
+  twitter: <twitter_of_author>
+  url: <homepage_of_author>
+```
+{: file="_data/authors.yml" }
+
+And then set up the custom author in the post's YAML block:
+
 ```yaml
 ---
-author:
-  name: Full Name
-  link: https://example.com
+author: <author_id>
 ---
 ```
 
+> Another benefit of reading the author information from the file `_data/authors.yml`{: .filepath } is that the page will have the meta tag `twitter:creator`, which enriches the [Twitter Cards](https://developer.twitter.com/en/docs/twitter-for-websites/cards/guides/getting-started#card-and-content-attribution) and is good for SEO.
+{: .prompt-info }
+
 ## 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 a specific post, add the following to the 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
 ---
@@ -69,7 +81,7 @@ toc: false
 
 ## Comments
 
-The global switch of comments is defined by variable `comments.active` in the file _\_config.yml_. After selecting a comment system for this variable, comments will be turned on for all posts.
+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:
 
@@ -131,7 +143,10 @@ Starting from _Chirpy v5.0.0_, `height` and `width` support abbreviations (`heig
 
 ### Position
 
-By default, the image is centered, but you can specify the position by using one of the classes `normal`, `left`, and `right`. For example:
+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**
 
@@ -156,8 +171,6 @@ By default, the image is centered, but you can specify the position by using one
   ```
   {: .nolineno}
 
-> **Limitation**: Once the position of the image is specified, the image caption should not be added.
-
 ### 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:
@@ -169,7 +182,7 @@ 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
@@ -217,15 +230,14 @@ The output will be:
 ```
 {: .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:
+If you want to add an image to the top of the post contents, specify the attribute `path`, `width`, `height`, and `alt` for the image:
 
 ```yaml
 ---
 image:
-  src: /path/to/image/file
+  path: /path/to/image/file
   width: 1000   # in pixels
   height: 400   # in pixels
   alt: image alternative text
@@ -234,7 +246,7 @@ image:
 
 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.
+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 `path` only needs the image file name.
 
 ## Pinned Posts
 
@@ -246,15 +258,43 @@ 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:
 
@@ -264,22 +304,23 @@ key: value
 ```
 ````
 
-> **Limitation**: The Jekyll style `highlight` tag is 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
@@ -288,7 +329,7 @@ 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 %}`:
 

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

@@ -1,8 +1,6 @@
 ---
 title: Getting Started
-author:
-  name: Cotes Chung
-  link: https://github.com/cotes2020
+author: cotes
 date: 2019-08-09 20:55:00 +0800
 categories: [Blogging, Tutorial]
 tags: [getting started]
@@ -11,7 +9,7 @@ pin: true
 
 ## Prerequisites
 
-Follow the instructions in the [Jekyll Docs](https://jekyllrb.com/docs/installation/) to complete the installation of `Ruby`, `RubyGems`, `Jekyll`, and `Bundler`.
+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
 
@@ -36,18 +34,18 @@ And then execute:
 $ bash tools/init.sh
 ```
 
-> **Note**: If you don't want to deploy your site on GitHub Pages, append 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 }
 
 The above command will:
 
 1. Removes some files or directories from your repository:
-    - `.travis.yml`
-    - files under `_posts`
-    - folder `docs`
+    - `.travis.yml`{: .filepath}
+    - files under `_posts`{: .filepath}
 
-2. If the option `--no-gh` is provided, the directory `.github` will be deleted. Otherwise, set up 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. Removes item `Gemfile.lock` from `.gitignore`.
+3. Removes item `Gemfile.lock` from `.gitignore`{: .filepath}.
 
 4. Creates a new commit to save the changes automatically.
 
@@ -63,7 +61,7 @@ $ bundle
 
 ### 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`
@@ -72,9 +70,15 @@ Update the variables of `_config.yml` as needed. Some of them are typical option
 
 ### Customing Stylesheet
 
-If you need to customize the 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`][chirpy-4.1.0], 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
 
@@ -95,23 +99,23 @@ $ docker run -it --rm \
 
 After a while, the local service will be published at _<http://127.0.0.1:4000>_.
 
-### Deployment
+## Deployment
 
-Before the deployment begins, check out 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 starts 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 by Using Github Actions
+### 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 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 [sample 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 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.
 
-- Ensure your Jekyll site has file `tools/deploy.sh`. Otherwise, copy it from here to your Jekyll site.
+- 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` to the repo, and your runtime system is not Linux, don't forget to update the platform list in the lock file:
+- 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
@@ -129,7 +133,7 @@ Now publish your Jekyll site by:
 
 3. Visit your website at the address indicated by GitHub.
 
-#### Manually Build and Deploy
+### Manually Build and Deploy
 
 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.
 
@@ -149,13 +153,13 @@ $ 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 the target 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
+## 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`), editing the `Gemfile` and update the version number of the theme gem, for example:
+- 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"
@@ -171,7 +175,7 @@ It depends on how you use the theme:
 
   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` of your site), then merge the [latest upstream tags][latest-tag] into your Jekyll site to complete the upgrade.
+- 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

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

@@ -1,14 +1,12 @@
 ---
 title: Customize the Favicon
-author:
-  name: Cotes Chung
-  link: https://github.com/cotes2020
+author: cotes
 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 want to replace them with your own. The following sections will guide you 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
 
@@ -20,10 +18,10 @@ 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}
 
-And then copy the remaining image files (`PNG` and `ICO`) to cover the original files in the directory `assets/img/favicons/` of your Jekyll site. If your Jekyll site doesn't have this directory yet, just create one.
+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 help you understand the changes to the favicon files:
 
@@ -32,6 +30,7 @@ The following table will help you understand the changes to the favicon files:
 | `*.PNG`             | ✓                                 | ✗           |
 | `*.ICO`             | ✓                                 | ✗           |
 
-> 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

@@ -1,8 +1,6 @@
 ---
 title: Enable Google Page Views
-author:
-  name: Dinesh Prasanth Moluguwan Krishnamoorthy
-  link: https://github.com/SilleBille
+author: sille_bille
 date: 2021-01-03 18:32:00 -0500
 categories: [Blogging, Tutorial]
 tags: [google analytics, pageviews]
@@ -37,7 +35,7 @@ It should look like this:
 
 ![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:
@@ -115,16 +113,16 @@ 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:
+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:
 
     ```diff
     - application: your-project-id
     - version: 1
     ```
 
-3. In `src/config.py`, add the `OAUTH_CLIENT_ID` and `OAUTH_CLIENT_SECRET` that you gathered from your App Engine Dashboard.
+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` should look similar to this
+4.  Enter any random key for `XSRF_KEY`, your `config.py`{: .filepath} should look similar to this
 
     ```python
     #!/usr/bin/python2.7
@@ -146,9 +144,11 @@ 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
@@ -221,7 +221,7 @@ Once all the hard part is done, it is very easy to enable the Page View on Chirp
 
 ![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/commons.scss

@@ -1,37 +1,30 @@
 /*
   The common styles
 */
-@import url('https://fonts.googleapis.com/css2?family=Lato&family=Source+Sans+Pro:wght@400;600;900&display=swap');
 
-@mixin mode-toggle($dark-mode: false) {
-  @if $dark-mode {
-    @include dark-scheme;
-  } @else {
-    @include light-scheme;
-  }
-}
+html {
+  @media (prefers-color-scheme: light) {
+    &:not([data-mode]),
+    &[data-mode=light] {
+      @include light-scheme;
+    }
 
-html:not([mode]),
-html[mode=light] {
-  @include mode-toggle();
-}
-
-html[mode=dark] {
-  @include mode-toggle(true);
-}
-
-@media (prefers-color-scheme: dark) {
-  html:not([mode]),
-  html[mode=dark] {
-    @include mode-toggle(true);
+    &[data-mode=dark] {
+      @include dark-scheme;
+    }
   }
 
-  html[mode=light] {
-    @include mode-toggle();
-  }
-}
+  @media (prefers-color-scheme: dark) {
+    &:not([data-mode]),
+    &[data-mode=dark] {
+      @include dark-scheme;
+    }
+
+    &[data-mode=light] {
+      @include light-scheme;
+    }
+  }
 
-:root {
   font-size: 16px;
 }
 
@@ -54,7 +47,7 @@ h1 {
 h2 {
   @extend %heading;
   @extend %section;
-  @extend %anchor-relative;
+  @extend %anchor;
 
   font-size: 1.5rem;
 }
@@ -104,6 +97,38 @@ blockquote {
   border-left: 5px solid var(--blockquote-border-color);
   padding-left: 1rem;
   color: var(--blockquote-text-color);
+
+  &[class^="prompt-"] {
+    display: flex;
+    border-left: 0;
+    border-radius: 6px;
+    padding: 0.75rem 1.2rem;
+    color: var(--prompt-text-color);
+
+    &::before {
+      margin-right: 1rem;
+      font-family: "Font Awesome 5 Free";
+      text-align: center;
+      width: 1.25rem;
+    }
+
+    p:last-child {
+      margin-bottom: 0rem;
+    }
+  }
+
+  @include prompt("tip", "\f0eb", 400);
+
+  @include prompt("info", "\f06a");
+
+  @include prompt("warning", "\f06a");
+
+  @include prompt("danger", "\f071");
+}
+
+mjx-container {
+  overflow-x: auto;
+  overflow-y: hidden;
 }
 
 kbd {
@@ -123,18 +148,15 @@ kbd {
 }
 
 footer {
-  position: absolute;
-  bottom: 0;
-  padding: 0 1rem;
-  height: $footer-height;
+  @include pl-pr(1.5rem);
+
   font-size: 0.8rem;
 
   > div.d-flex {
+    height: $footer-height;
     line-height: 1.2rem;
-    width: 95%;
-    max-width: 1045px;
+    padding-bottom: 1rem;
     border-top: 1px solid var(--main-border-color);
-    margin-bottom: 1rem;
 
     > div {
       width: 350px;
@@ -160,7 +182,7 @@ footer {
   }
 }
 
-i { // fontawesome icons
+i { /* fontawesome icons */
   &.far,
   &.fas {
     @extend %no-cursor;
@@ -191,7 +213,10 @@ img[data-src] {
 
   &.shadow {
     filter: drop-shadow(2px 4px 6px rgba(0, 0, 0, 0.08));
+    box-shadow: none !important; /* cover the Bootstrap 4.6.1 styles */
   }
+
+  @extend %img-caption;
 }
 
 /* --- Panels --- */
@@ -199,7 +224,6 @@ img[data-src] {
 .access {
   top: 2rem;
   transition: top 0.2s ease-in-out;
-  margin-right: 1.5rem;
   margin-top: 3rem;
   margin-bottom: 4rem;
 
@@ -224,7 +248,7 @@ img[data-src] {
 }
 
 #panel-wrapper {
-  // the headings
+  /* the headings */
   .panel-heading {
     @include label(inherit);
   }
@@ -247,7 +271,7 @@ img[data-src] {
     }
   }
 
-  &.topbar-down > div {
+  [data-topbar-visible=true] & > div {
     top: 6rem;
   }
 }
@@ -290,7 +314,7 @@ img[data-src] {
       margin-bottom: 0;
     }
 
-    // [scroll-focus] added by `smooth-scroll.js`
+    /* [scroll-focus] added by `smooth-scroll.js` */
     &:target:not([scroll-focus]),
     &[scroll-focus=true] > p {
       background-color: var(--footnote-target-bg);
@@ -311,7 +335,7 @@ img[data-src] {
     transition: background-color 1.5s ease-in-out;
   }
 
-  // [scroll-focus] added by `smooth-scroll.js`
+  /* [scroll-focus] added by `smooth-scroll.js` */
   @at-root sup:target:not([scroll-focus]),
   sup[scroll-focus=true] > a#{&} {
     background-color: var(--footnote-target-bg);
@@ -331,7 +355,7 @@ img[data-src] {
 
 /* --- Begin of Markdown table style --- */
 
-// it will be created by Liquid
+/* it will be created by Liquid */
 .table-wrapper {
   overflow-x: auto;
   margin-bottom: 1.5rem;
@@ -365,8 +389,8 @@ img[data-src] {
           @extend %table-cell;
         }
       }
-    } // tbody
-  }// table
+    } /* tbody */
+  }/* table */
 }
 
 /* --- post --- */
@@ -382,7 +406,7 @@ img[data-src] {
       @extend %no-cursor;
     }
 
-    // created by `_includes/img-extra.html`
+    /* created by `_includes/img-extra.html` */
     &.popup {
       cursor: zoom-in;
 
@@ -396,7 +420,7 @@ img[data-src] {
         @extend %link-hover;
       }
     }
-  } // a
+  } /* a */
 
 }
 
@@ -413,7 +437,7 @@ img[data-src] {
       margin-right: 2px;
     }
 
-    &:hover {
+    &:not([class]):hover {
       @extend %link-hover;
     }
   }
@@ -439,23 +463,18 @@ img[data-src] {
       }
     }
 
-    &.img-link + em {
-      display: block;
-      text-align: center;
-      font-style: normal;
-      font-size: 80%;
-      padding: 0;
-      color: #6d6c6c;
+    &.img-link {
+      @extend %img-caption;
     }
 
   }
 
   ul {
-    // attribute 'hide-bullet' was added by liquid
+    /* attribute 'hide-bullet' was added by liquid */
     .task-list-item[hide-bullet] {
       list-style-type: none;
 
-      > i { // checkbox icon
+      > i { /* checkbox icon */
         margin: 0 0.4rem 0.2rem -1.4rem;
         vertical-align: middle;
         color: var(--checkbox-color);
@@ -472,7 +491,7 @@ img[data-src] {
       vertical-align: middle;
     }
 
-  } // ul
+  } /* ul */
 
   > ol,
   > ul {
@@ -480,7 +499,7 @@ img[data-src] {
 
     li {
       ol,
-      ul { // sub list
+      ul { /* sub list */
         padding-left: 2rem;
         margin-top: 0.3rem;
       }
@@ -498,7 +517,7 @@ img[data-src] {
     margin-left: 1rem;
   }
 
-} // .post-content
+} /* .post-content */
 
 .tag:hover {
   @extend %tag-hover;
@@ -570,10 +589,6 @@ img[data-src] {
   box-shadow: 0 0 8px 0 var(--btn-box-shadow) !important;
 }
 
-.topbar-up {
-  top: -3rem !important; /* same as topbar height. */
-}
-
 .no-text-decoration {
   @include no-text-decoration;
 }
@@ -603,14 +618,14 @@ img[data-src] {
 
 /* --- Overriding --- */
 
-// magnific-popup
+/* magnific-popup */
 figure .mfp-title {
   text-align: center;
   padding-right: 0;
   margin-top: 0.5rem;
 }
 
-// mermaid
+/* mermaid */
 .mermaid {
   text-align: center;
 }
@@ -658,7 +673,7 @@ $sidebar-display: "sidebar-display";
       border-radius: 50%;
       border: 2px solid rgba(222, 222, 222, 0.7);
       overflow: hidden;
-      transform: translateZ(0); // fixed the zoom in Safari
+      transform: translateZ(0); /* fixed the zoom in Safari */
       -webkit-transition: border-color 0.35s ease-in-out;
       -moz-transition: border-color 0.35s ease-in-out;
       transition: border-color 0.35s ease-in-out;
@@ -682,7 +697,7 @@ $sidebar-display: "sidebar-display";
         transform: scale(1.2);
       }
     }
-  } // #avatar
+  } /* #avatar */
 
   .site-title {
     a {
@@ -701,7 +716,7 @@ $sidebar-display: "sidebar-display";
     line-height: 1.2rem;
     word-spacing: 1px;
     margin: 0.5rem 1.5rem 0.5rem 1.5rem;
-    min-height: 3rem; // avoid vertical shifting in multi-line words
+    min-height: 3rem; /* avoid vertical shifting in multi-line words */
     user-select: none;
   }
 
@@ -745,7 +760,7 @@ $sidebar-display: "sidebar-display";
           width: 100%;
         }
 
-        &::after { // the cursor
+        &::after { /* the cursor */
           display: table;
           visibility: hidden;
           content: "";
@@ -758,7 +773,7 @@ $sidebar-display: "sidebar-display";
           pointer-events: none;
         }
       }
-    } // li
+    } /* li */
 
     @mixin fix-cursor($top) {
       top: $top;
@@ -783,9 +798,9 @@ $sidebar-display: "sidebar-display";
         }
       }
 
-    } // @for
+    } /* @for */
 
-  } // ul
+  } /* ul */
 
   .sidebar-bottom {
     margin-bottom: 2.1rem;
@@ -836,9 +851,9 @@ $sidebar-display: "sidebar-display";
       border-radius: 50%;
     }
 
-  } // .sidebar-bottom
+  } /* .sidebar-bottom */
 
-} // #sidebar
+} /* #sidebar */
 
 @media (hover: hover) {
   #sidebar ul > li:last-child::after {
@@ -857,6 +872,7 @@ $sidebar-display: "sidebar-display";
 #search-result-wrapper {
   display: none;
   height: 100%;
+  width: 100%;
   overflow: auto;
 
   .post-content {
@@ -876,10 +892,14 @@ $sidebar-display: "sidebar-display";
   z-index: 50;
   border-bottom: 1px solid rgba(0, 0, 0, 0.07);
   background-color: var(--topbar-wrapper-bg);
+
+  [data-topbar-visible=false] & {
+    top: -$topbar-height; /* same as topbar height. */
+  }
 }
 
 #topbar {
-  i { // icons
+  i { /* icons */
     color: #999;
   }
 
@@ -901,7 +921,7 @@ $sidebar-display: "sidebar-display";
       }
     }
   }
-} // #topbar
+} /* #topbar */
 
 #sidebar-trigger,
 #search-trigger {
@@ -910,7 +930,7 @@ $sidebar-display: "sidebar-display";
 
 #search-wrapper {
   display: flex;
-  width: 85%;
+  width: 100%;
   border-radius: 1rem;
   border: 1px solid var(--search-wrapper-border-color);
   background: var(--search-wrapper-bg);
@@ -921,12 +941,6 @@ $sidebar-display: "sidebar-display";
     font-size: 0.9rem;
     color: var(--search-icon-color);
   }
-
-  .fa-times-circle { /* button 'clean up' */
-    @extend %cursor-pointer;
-
-    visibility: hidden;
-  }
 }
 
 #search-cancel { /* 'Cancel' link */
@@ -943,6 +957,7 @@ $sidebar-display: "sidebar-display";
   border-radius: 0;
   padding: 0.18rem 0.3rem;
   color: var(--text-color);
+  height: auto;
 
   &:focus {
     box-shadow: none;
@@ -984,7 +999,7 @@ $sidebar-display: "sidebar-display";
 }
 
 #search-results {
-  padding-bottom: 6rem;
+  padding-bottom: 3rem;
 
   a {
     &:hover {
@@ -1006,7 +1021,7 @@ $sidebar-display: "sidebar-display";
       margin-bottom: 1rem;
     }
 
-    i { // icons
+    i { /* icons */
       color: #818182;
       margin-right: 0.15rem;
       font-size: 80%;
@@ -1020,7 +1035,7 @@ $sidebar-display: "sidebar-display";
       -webkit-box-orient: vertical;
     }
   }
-} // #search-results
+} /* #search-results */
 
 #topbar-title {
   display: none;
@@ -1037,7 +1052,7 @@ $sidebar-display: "sidebar-display";
 }
 
 #core-wrapper {
-  min-height: calc(100vh - #{$topbar-height} - #{$footer-height} - #{$bottom-min-height}) !important;
+  min-height: calc(100vh - #{$topbar-height} - #{$footer-height});
 
   .categories,
   #tags,
@@ -1070,29 +1085,13 @@ $sidebar-display: "sidebar-display";
   background-color: var(--main-wrapper-bg);
   position: relative;
   min-height: 100vh;
-  padding-bottom: $footer-height;
 
   @include pl-pr(0);
 }
 
-#main {
-  .row:first-child {
-    > div {
-      &:nth-child(1),
-      &:nth-child(2) {
-        margin-top: $topbar-height; /* same as the height of topbar */
-      }
-
-      &:first-child {
-        /* 3rem for topbar, 6rem for footer */
-        min-height: calc(100vh - #{$topbar-height} - #{$footer-height} - #{$bottom-min-height});
-      }
-    }
-  }
-
-  div.row:first-of-type:last-of-type { // alone
-    margin-bottom: 4rem;
-  }
+#core-wrapper,
+#panel-wrapper {
+  margin-top: $topbar-height; /* same as the height of topbar */
 }
 
 #topbar-wrapper.row,
@@ -1132,6 +1131,51 @@ $sidebar-display: "sidebar-display";
   -webkit-transform: translate3d(0, -5px, 0);
 }
 
+#notification {
+  @keyframes popup {
+    from {
+      opacity: 0;
+      bottom: 0;
+    }
+  }
+
+  .toast-header {
+    background: none;
+    border-bottom: none;
+    color: inherit;
+  }
+
+  .toast-body {
+    font-family: 'Lato';
+    line-height: 1.25rem;
+
+    button {
+      font-size: 90%;
+      min-width: 4rem;
+    }
+  }
+
+  &.toast {
+    display: none;
+
+    &.show {
+      display: block;
+      min-width: 20rem;
+      border-radius: 0.5rem;
+      -webkit-backdrop-filter: blur(10px);
+      backdrop-filter: blur(10px);
+      background-color: rgba(255, 255, 255, 0.5);
+      color: #1b1b1eba;
+      position: fixed;
+      left: 50%;
+      bottom: 20%;
+      transform: translateX(-50%);
+      animation: popup 0.8s;
+    }
+  }
+
+}
+
 /*
   Responsive Design:
 
@@ -1142,42 +1186,11 @@ $sidebar-display: "sidebar-display";
 */
 
 @media all and (max-width: 576px) {
-
-  $footer-height: $footer-height-mobile; // overwrite
-
-  #main > div.row:first-child > div:first-child {
-    min-height: calc(100vh - #{$topbar-height} - #{$footer-height});
-  }
-
-  #core-wrapper {
-    min-height: calc(100vh - #{$topbar-height} - #{$footer-height} - #{$bottom-min-height}) !important;
-
-    h1 {
-      margin-top: 2.2rem;
-      font-size: 1.75rem;
-    }
-  }
-
-  #avatar > a {
-    width: 5rem;
-    height: 5rem;
-  }
-
-  .site-subtitle {
-    @include ml-mr(1.8rem);
-  }
-
-  #main-wrapper {
-    padding-bottom: $footer-height;
-  }
-
   footer {
-    height: $footer-height;
+    height: $footer-height-mobile;
 
     > div.d-flex {
-      width: 100%;
       padding: 1.5rem 0;
-      margin-bottom: 0.3rem;
       flex-wrap: wrap;
       -ms-flex-pack: distribute !important;
       justify-content: space-around !important;
@@ -1189,13 +1202,60 @@ $sidebar-display: "sidebar-display";
     }
   }
 
+  #core-wrapper {
+    min-height: calc(100vh - #{$topbar-height} - #{$footer-height-mobile}) !important;
+
+    h1 {
+      margin-top: 2.2rem;
+      font-size: 1.75rem;
+    }
+
+    .post-content {
+      > blockquote[class^=prompt-] {
+        @include ml-mr(-1.25rem);
+        border-radius: 0;
+      }
+    }
+
+  }
+
+  #avatar > a {
+    width: 5rem;
+    height: 5rem;
+  }
+
+  .site-subtitle {
+    @include ml-mr(1.8rem);
+  }
+
+}
+
+@media all and (max-width: 768px) {
+  %full-width {
+    max-width: 100%;
+  }
+
+  #topbar {
+    @extend %full-width;
+  }
+
+  #main {
+    @extend %full-width;
+    @include pl-pr(0);
+  }
 }
 
 /* hide sidebar and panel */
 @media all and (max-width: 849px) {
-  %slide {
-    -webkit-transition: transform 0.4s ease;
-    transition: transform 0.4s ease;
+  @mixin slide($append: null) {
+    $basic: transform 0.4s ease;
+    @if $append {
+      -webkit-transition: $basic, $append;
+      transition: $basic, $append;
+    } @else {
+      -webkit-transition: $basic;
+      transition: $basic;
+    }
   }
 
   html,
@@ -1203,15 +1263,6 @@ $sidebar-display: "sidebar-display";
     overflow-x: hidden;
   }
 
-  .footnotes ol > li {
-    padding-top: 3.5rem;
-    margin-top: -3.2rem;
-
-    &:first-child {
-      margin-top: -3.5rem;
-    }
-  }
-
   [#{$sidebar-display}] {
     #sidebar {
       transform: translateX(0);
@@ -1221,13 +1272,12 @@ $sidebar-display: "sidebar-display";
     #main-wrapper {
       transform: translateX(#{$sidebar-width});
     }
-
   }
 
   #sidebar {
-    @extend %slide;
+    @include slide;
 
-    transform: translateX(-#{$sidebar-width}); // hide
+    transform: translateX(-#{$sidebar-width}); /* hide */
     -webkit-transform: translateX(-#{$sidebar-width});
 
     .cursor {
@@ -1238,11 +1288,16 @@ $sidebar-display: "sidebar-display";
   }
 
   #main-wrapper {
-    @extend %slide;
+    @include slide;
 
     padding-top: $topbar-height;
   }
 
+  #topbar,
+  #main {
+    max-width: 100%;
+  }
+
   #search-result-wrapper {
     width: 100%;
   }
@@ -1253,17 +1308,13 @@ $sidebar-display: "sidebar-display";
   }
 
   #topbar-wrapper {
-    @extend %slide;
+    @include slide(top 0.2s ease);
 
     left: 0;
   }
 
-  .topbar-up {
-    top: 0 !important;
-  }
-
-  #main > div.row:first-child > div:nth-child(1),
-  #main > div.row:first-child > div:nth-child(2) {
+  #core-wrapper,
+  #panel-wrapper {
     margin-top: 0;
   }
 
@@ -1273,21 +1324,6 @@ $sidebar-display: "sidebar-display";
     display: block;
   }
 
-  #search-wrapper {
-    &.loaded ~ a {
-      margin-right: 1rem;
-    }
-
-    .fa-times-circle {
-      right: 5.2rem;
-    }
-  }
-
-  #search-input {
-    margin-left: 0;
-    width: 95%;
-  }
-
   #search-result-wrapper .post-content {
     letter-spacing: 0;
   }
@@ -1306,7 +1342,13 @@ $sidebar-display: "sidebar-display";
     }
   }
 
-} // max-width: 849px
+} /* max-width: 849px */
+
+@media all and (max-width: 849px) and (orientation: portrait) {
+  [data-topbar-visible=false] #topbar-wrapper {
+    top: 0;
+  }
+}
 
 /* Phone & Pad */
 @media all and (min-width: 577px) and (max-width: 1199px) {
@@ -1330,13 +1372,17 @@ $sidebar-display: "sidebar-display";
     margin-top: 3rem;
   }
 
+  #search-hints {
+    display: none;
+  }
+
   #search-wrapper {
-    width: 22%;
-    min-width: 150px;
+    max-width: $search-max-width;
   }
 
   #search-result-wrapper {
     margin-top: 3rem;
+    max-width: $main-content-max-width;
   }
 
   div.post-content .table-wrapper > table {
@@ -1346,21 +1392,17 @@ $sidebar-display: "sidebar-display";
   /* button 'back-to-Top' position */
   #back-to-top {
     bottom: 5.5rem;
-    right: 1.2rem;
+    right: 5%;
   }
 
-  .topbar-up {
-    box-shadow: none !important;
+  #topbar {
+    @include pl-pr(2rem);
   }
 
   #topbar-title {
     text-align: left;
   }
 
-  footer > div.d-flex {
-    width: 92%;
-  }
-
 }
 
 /* Pad horizontal */
@@ -1434,10 +1476,6 @@ $sidebar-display: "sidebar-display";
     display: none;
   }
 
-  #topbar {
-    padding: 0;
-  }
-
   #main > div.row {
     -webkit-box-pack: center !important;
     -ms-flex-pack: center !important;
@@ -1448,26 +1486,12 @@ $sidebar-display: "sidebar-display";
 /* --- desktop mode, both sidebar and panel are visible --- */
 
 @media all and (min-width: 1200px) {
-  #main > div.row > div.col-xl-8 {
-    -webkit-box-flex: 0;
-    -ms-flex: 0 0 75%;
-    flex: 0 0 75%;
-    max-width: 75%;
-    padding-left: 3%;
-  }
-
-  #topbar {
-    padding: 0;
-    max-width: 1070px;
-  }
-
-  #panel-wrapper {
-    max-width: $panel-max-width;
-  }
-
   #back-to-top {
     bottom: 6.5rem;
-    right: 4.3rem;
+  }
+
+  #search-wrapper {
+    margin-right: 4rem;
   }
 
   #search-input {
@@ -1492,10 +1516,6 @@ $sidebar-display: "sidebar-display";
     }
   }
 
-  #search-hints {
-    display: none;
-  }
-
   .post-content {
     font-size: 1.03rem;
   }
@@ -1507,66 +1527,36 @@ $sidebar-display: "sidebar-display";
 }
 
 @media all and (min-width: 1400px) {
-  #main > div.row {
-    padding-left: calc((100% - #{$main-content-max-width}) / 2);
-
-    > div.col-xl-8 {
-      max-width: 850px;
-    }
-  }
-
-  #search-result-wrapper {
-    padding-right: 2rem;
-
-    > div {
-      max-width: 1110px;
-    }
-  }
-
-  #search-wrapper .fa-times-circle {
-    right: 2.6rem;
-  }
-
-}
-
-@media all and (min-width: 1400px) and (max-width: 1650px) {
-  #topbar {
-    padding-right: 2rem;
+  #back-to-top {
+    right: calc((100vw - #{$sidebar-width} - 1140px) / 2 + 3rem);
   }
 }
 
 @media all and (min-width: 1650px) {
-  #breadcrumb {
-    padding-left: 0;
-  }
-
-  #main > div.row > div.col-xl-8 {
-    padding-left: 0;
-
-    > div:first-child {
-      padding-left: 0.55rem !important;
-      padding-right: 1.9rem !important;
-    }
-  }
-
   #main-wrapper {
     margin-left: $sidebar-width-large;
   }
 
-  #panel-wrapper {
-    margin-left: calc((100% - #{$main-content-max-width}) / 10);
-  }
-
   #topbar-wrapper {
     left: $sidebar-width-large;
   }
 
-  #topbar {
-    max-width: #{$main-content-max-width};
+  #search-wrapper {
+    margin-right: calc(#{$main-content-max-width} * 0.25 - #{$search-max-width});
   }
 
-  #search-wrapper {
-    margin-right: 3%;
+  #topbar,
+  #main {
+    max-width: $main-content-max-width;
+  }
+
+  #core-wrapper,
+  #tail-wrapper {
+    padding-right: 4.5rem !important;
+  }
+
+  #back-to-top {
+    right: calc((100vw - #{$sidebar-width-large} - #{$main-content-max-width}) / 2 + 2rem);
   }
 
   #sidebar {
@@ -1613,7 +1603,7 @@ $sidebar-display: "sidebar-display";
         margin-top: 0.3rem;
       }
 
-    } // .profile-wrapper (min-width: 1650px)
+    } /* .profile-wrapper (min-width: 1650px) */
 
     ul {
       padding-left: 2.5rem;
@@ -1660,7 +1650,7 @@ $sidebar-display: "sidebar-display";
         @include ml-mr(0.15rem);
 
         height: $icon-block-size;
-        margin-bottom: 0.5rem; // wrap line
+        margin-bottom: 0.5rem; /* wrap line */
       }
 
       i {
@@ -1683,62 +1673,8 @@ $sidebar-display: "sidebar-display";
         top: 0.9rem;
       }
 
-    } // .sidebar-bottom
+    } /* .sidebar-bottom */
 
-  } // #sidebar
+  } /* #sidebar */
 
-  footer > div.d-flex {
-    width: 92%;
-    max-width: 1140px;
-  }
-
-  #search-result-wrapper {
-    > div {
-      max-width: #{$main-content-max-width};
-    }
-  }
-
-} // min-width: 1650px
-
-@media all and (min-width: 1700px) {
-  #topbar-wrapper {
-    /* 100% - 350px - (1920px - 350px); */
-    padding-right: calc(100% - #{$sidebar-width-large} - (1920px - #{$sidebar-width-large}));
-  }
-
-  #topbar {
-    max-width: calc(#{$main-content-max-width} + 20px);
-  }
-
-  #main > div.row {
-    padding-left: calc((100% - #{$main-content-max-width} - 2%) / 2);
-  }
-
-  #panel-wrapper {
-    margin-left: 3%;
-  }
-
-  footer {
-    padding-left: 0;
-    padding-right: calc(100% - #{$sidebar-width-large} - 1180px);
-  }
-
-  #back-to-top {
-    right: calc(100% - 1920px + 15rem);
-  }
-
-}
-
-@media (min-width: 1920px) {
-  #main > div.row {
-    padding-left: 190px;
-  }
-
-  #search-result-wrapper {
-    padding-right: calc(100% - #{$sidebar-width-large} - 1180px);
-  }
-
-  #panel-wrapper {
-    margin-left: 41px;
-  }
-}
+} /* min-width: 1650px */

_sass/addon/module.scss

@@ -13,19 +13,21 @@
 %section {
   #core-wrapper & {
     margin-top: 2.5rem;
-    margin-bottom: 2rem;
+    margin-bottom: 1.25rem;
+
+    &:focus {
+      outline: none; /* avoid outline in Safari */
+    }
   }
 }
 
 %anchor {
   .anchor {
-    font-size: 1rem;
-    margin-left: 0.5rem;
+    font-size: 80%;
   }
 
   @media (hover: hover) {
     .anchor {
-      border-bottom: none !important;
       visibility: hidden;
       opacity: 0;
       transition: opacity 0.25s ease-in, visibility 0s ease-in 0.25s;
@@ -41,15 +43,6 @@
   }
 }
 
-%anchor-relative {
-  @extend %anchor;
-
-  .anchor {
-    position: relative;
-    bottom: 1px;
-  }
-}
-
 %tag-hover {
   background: var(--tag-hover);
   transition: background 0.35s ease-in-out;
@@ -95,10 +88,15 @@
   font-style: normal;
 }
 
-/* ---------- scss mixin --------- */
-
-@mixin no-text-decoration {
-  text-decoration: none;
+%img-caption {
+  + em {
+    display: block;
+    text-align: center;
+    font-style: normal;
+    font-size: 80%;
+    padding: 0;
+    color: #6d6c6c;
+  }
 }
 
 %sidebar-links {
@@ -106,6 +104,12 @@
   user-select: none;
 }
 
+/* ---------- scss mixin --------- */
+
+@mixin no-text-decoration {
+  text-decoration: none;
+}
+
 @mixin ml-mr($value) {
   margin-left: $value;
   margin-right: $value;
@@ -133,3 +137,15 @@
   -ms-transform: translateX(-50%);
   transform: translateX(-50%);
 }
+
+@mixin prompt($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;
+    }
   }
 }
 
@@ -95,7 +99,7 @@ $code-radius: 6px;
     user-select: none;
   }
 
-} //.highlight
+} /* .highlight */
 
 code {
   -webkit-hyphens: none;
@@ -110,8 +114,15 @@ code {
     background-color: var(--inline-code-bg);
   }
 
+  &.filepath {
+    background-color: inherit;
+    color: var(--filepath-text-color);
+    font-weight: 600;
+    padding: 0;
+  }
+
   a > &.highlighter-rouge {
-    padding-bottom: 0; // show link's underlinke
+    padding-bottom: 0; /* show link's underlinke */
     color: inherit;
   }
 
@@ -119,7 +130,7 @@ code {
     border-bottom: none;
   }
 
-  blockquote &.highlighter-rouge {
+  blockquote & {
     color: inherit;
   }
 
@@ -131,8 +142,10 @@ code {
 td.rouge-code {
   @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;
@@ -186,9 +199,9 @@ div {
       ($dot-size + $dot-margin) * 2 0 0 var(--code-header-muted-color);
   }
 
-  // the label block
+  /* the label block */
   span {
-    // label icon
+    /* label icon */
     i {
       font-size: 1rem;
       margin-right: 0.4rem;
@@ -201,19 +214,19 @@ div {
 
     @at-root [file] #{&} > i {
       position: relative;
-      top: 1px; // center the file icon
+      top: 1px; /* center the file icon */
     }
 
-    // label text
+    /* label text */
     &::after {
-      content: attr(label-text);
+      content: attr(data-label-text);
       font-size: 0.85rem;
       font-weight: 600;
       color: var(--code-header-text-color);
     }
   }
 
-  // clipboard
+  /* clipboard */
   button {
     @extend %cursor-pointer;
 

_sass/addon/variables.scss

@@ -4,28 +4,28 @@
 
 /* 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-count: 5 !default;   /* backward compatible (version <= 4.0.2) */
 $tab-height: 3rem !default;
 $tab-cursor-height: 1.6rem !default;
 
-$cursor-width: 2px !default;    // the cursor width of the selected tab
+$cursor-width: 2px !default;    /* the cursor width of the selected tab */
 
 /* other framework sizes */
 
 $topbar-height: 3rem !default;
 
+$search-max-width: 210px !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;
+$main-content-max-width: 1250px !default;
 
 $bottom-min-height: 35rem !default;
 

_sass/colors/dark-syntax.scss

@@ -78,6 +78,7 @@
   --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; }

_sass/colors/dark-typography.scss

@@ -69,6 +69,15 @@
   --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);
@@ -145,4 +154,4 @@
     color-scheme: none;
   }
 
-} // dark-scheme
+} /* dark-scheme */

_sass/colors/light-syntax.scss

@@ -76,4 +76,9 @@
   --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

@@ -68,6 +68,19 @@
   --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);
@@ -78,4 +91,4 @@
   --timeline-node-bg: #c2c6cc;
   --timeline-year-dot-color: #ffffff;
 
-} // light-scheme
+} /* light-scheme */

_sass/jekyll-theme-chirpy.scss

@@ -1,7 +1,7 @@
 /*!
  * The styles for Jekyll theme Chirpy
  *
- * Chirpy v5.0.1 (https://github.com/cotes2020/jekyll-theme-chirpy)
+ * Chirpy v5.2.0 (https://github.com/cotes2020/jekyll-theme-chirpy)
  * © 2019 Cotes Chung
  * MIT Licensed
  */

_sass/layout/post.scss

@@ -41,8 +41,7 @@ h1 + .post-meta {
 }
 
 img.preview-img {
-  margin-top: 3.75rem;
-  margin-bottom: 0;
+  margin: 0;
   border-radius: 6px;
 
   &.bg[data-loaded=true] {
@@ -55,7 +54,7 @@ img.preview-img {
   border-bottom: 1px double var(--main-border-color);
   font-size: 0.85rem;
 
-  .post-meta a {
+  .post-meta a:not(:hover) {
     @extend %link-underline;
   }
 }
@@ -173,6 +172,8 @@ nav[data-toggle=toc] {
 
   em {
     @extend %normal-font-style;
+
+    color: var(--relate-post-date);
   }
 
   .card {
@@ -194,10 +195,6 @@ nav[data-toggle=toc] {
     }
   }
 
-  .timeago {
-    color: var(--relate-post-date);
-  }
-
   p {
     font-size: 0.9rem;
     margin-bottom: 0.5rem;

_tabs/about.md

@@ -4,5 +4,5 @@ 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 }

assets/404.html

@@ -7,27 +7,10 @@ redirect_from:
   - /norobots/
   - /assets/
   - /posts/
-
-dynamic_title: true
 ---
 
 {% include lang.html %}
 
 <div class="lead">
-
-  {%- capture _head_back -%}
-    <a href="{{ '/' | relative_url }}">{{ site.data.locales[lang].not_found.head_back }}</a>
-  {%- endcapture -%}
-
-  {%- capture _archives_page -%}
-    <a href="{{ 'archives' | relative_url }}">{{ site.data.locales[lang].not_found.archives_page }}</a>
-  {%- endcapture -%}
-
   <p>{{site.data.locales[lang].not_found.statment }}</p>
-
-  <p>{{ site.data.locales[lang].not_found.hint_template
-    | replace: ':HEAD_BAK', _head_back
-    | replace: ':ARCHIVES_PAGE', _archives_page }}
-  </p>
-
 </div>

assets/js/data/search.json

@@ -1,17 +1,18 @@
 ---
 layout: compress
+swcache: true
 ---
 
 [
   {% for post in site.posts %}
   {
-    "title": "{{ post.title | escape }}",
-    "url": "{{ post.url | relative_url }}",
-    "categories": "{{ post.categories | join: ', '}}",
-    "tags": "{{ post.tags | join: ', ' }}",
+    "title": {{ post.title | jsonify }},
+    "url": {{ post.url | relative_url | jsonify }},
+    "categories": {{ post.categories | join: ', ' | jsonify }},
+    "tags": {{ post.tags | join: ', ' | jsonify }},
     "date": "{{ post.date }}",
     {% include no-linenos.html content=post.content %}
-    "snippet": "{{ content | strip_html | strip_newlines | remove_chars | escape | replace: '\', '\\\\' }}"
+    "snippet": {{ content | strip_html | strip_newlines | jsonify }}
   }{% unless forloop.last %},{% endunless %}
   {% endfor %}
 ]

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 v5.0.1 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v5.2.0 (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))}),$(function(){$(".mode-toggle").click(e=>{const o=$(e.target);let t=o.prop("tagName")==="button".toUpperCase()?o:o.parent();t.blur(),flipMode()})}),$(function(){const e=$("#sidebar-trigger"),o=$("#search-trigger"),t=$("#search-cancel"),s=$("#search-cleaner"),a=$("#main"),l=$("#topbar-title"),r=$("#search-wrapper"),n=$("#search-result-wrapper"),d=$("#search-results"),i=$("#search-input"),c=$("#search-hints"),u=function(){let e=0;return{block(){e=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(e)},getOffset(){return e}}}(),f={on(){e.addClass("unloaded"),l.addClass("unloaded"),o.addClass("unloaded"),r.addClass("d-flex"),t.addClass("loaded")},off(){t.removeClass("loaded"),r.removeClass("d-flex"),e.removeClass("unloaded"),l.removeClass("unloaded"),o.removeClass("unloaded")}},p=function(){let e=!1;return{on(){e||(u.block(),n.removeClass("unloaded"),a.addClass("unloaded"),e=!0)},off(){e&&(d.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),n.addClass("unloaded"),s.removeClass("visible"),a.removeClass("unloaded"),u.release(),i.val(""),e=!1)},isVisible(){return e}}}();function h(){return t.hasClass("loaded")}o.click(function(){f.on(),p.on(),i.focus()}),t.click(function(){f.off(),p.off()}),i.focus(function(){r.addClass("input-focus")}),i.focusout(function(){r.removeClass("input-focus")}),i.on("keyup",function(e){8===e.keyCode&&""===i.val()?h()?c.removeClass("unloaded"):p.off():""!==i.val()&&(p.on(),s.hasClass("visible")||s.addClass("visible"),h()&&c.addClass("unloaded"))}),s.on("click",function(){i.val(""),h()?(c.removeClass("unloaded"),d.empty()):p.off(),i.focus(),s.removeClass("visible")})}),$(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 t=$("#topbar-wrapper"),s=$("#panel-wrapper"),a=$("#search-input"),l="topbar-up",r="topbar-down",n="toc-scrolling-up";let o,d=0;const i=t.outerHeight(),c=t.outerHeight();$(window).scroll(function(e){$("#topbar-title").is(":hidden")&&(o=!0)}),setInterval(function(){o&&(function(){var e,o=$(this).scrollTop();Math.abs(d-o)<=i||(o>d?o>c&&(t.removeClass(r).addClass(l),s.removeClass(r),a.is(":focus")&&a.blur()):o+$(window).height()<$(document).height()&&(void 0!==(e=t.attr(n))?"false"===e&&t.removeAttr(n):(t.removeClass(l).addClass(r),s.addClass(r))),d=o)}(),o=!1)},250)}),$(function(){const e=$("#topbar-title"),o=$("div.post>h1"),t=e.text().trim();let s=(0<o.length?o:$("h1")).text().trim();($("#page-category").length||$("#page-tag").length)&&/\s/.test(s)&&(s=s.replace(/[0-9]/g,"").trim()),$(window).scroll(function(){return!($("#post-list").length||o.is(":hidden")||e.is(":hidden")||$("#sidebar.sidebar-expand").length)&&void(95<=$(this).scrollTop()?e.text()!==s&&e.text(s):e.text()!==t&&e.text(t))}),e.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"),$("#"+e).addClass("hide-border-bottom"))})});
+$(function(){$(window).scroll(()=>{50<$(this).scrollTop()&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))}),$(function(){$(".mode-toggle").click(o=>{const e=$(o.target);let t=e.prop("tagName")==="button".toUpperCase()?e:e.parent();t.blur(),flipMode()})});const ScrollHelper=function(){const o=$("body"),e="data-topbar-visible",t=$("#topbar-wrapper").outerHeight();let l=0,a=!1,r=!1;return{hideTopbar:()=>o.attr(e,!1),showTopbar:()=>o.attr(e,!0),addScrollUpTask:()=>{l+=1,a=a||!0},popScrollUpTask:()=>--l,hasScrollUpTask:()=>0<l,topbarLocked:()=>!0===a,unlockTopbar:()=>a=!1,getTopbarHeight:()=>t,orientationLocked:()=>!0===r,lockOrientation:()=>r=!0,unLockOrientation:()=>r=!1}}();$(function(){const o=$("#sidebar-trigger"),e=$("#search-trigger"),t=$("#search-cancel"),l=$("#main"),a=$("#topbar-title"),r=$("#search-wrapper"),n=$("#search-result-wrapper"),s=$("#search-results"),i=$("#search-input"),c=$("#search-hints"),d=function(){let o=0;return{block(){o=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(o)},getOffset(){return o}}}(),p={on(){o.addClass("unloaded"),a.addClass("unloaded"),e.addClass("unloaded"),r.addClass("d-flex"),t.addClass("loaded")},off(){t.removeClass("loaded"),r.removeClass("d-flex"),o.removeClass("unloaded"),a.removeClass("unloaded"),e.removeClass("unloaded")}},f=function(){let o=!1;return{on(){o||(d.block(),n.removeClass("unloaded"),l.addClass("unloaded"),o=!0)},off(){o&&(s.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),n.addClass("unloaded"),l.removeClass("unloaded"),d.release(),i.val(""),o=!1)},isVisible(){return o}}}();function u(){return t.hasClass("loaded")}e.click(function(){p.on(),f.on(),i.focus()}),t.click(function(){p.off(),f.off()}),i.focus(function(){r.addClass("input-focus")}),i.focusout(function(){r.removeClass("input-focus")}),i.on("input",()=>{""===i.val()?u()?c.removeClass("unloaded"):f.off():(f.on(),u()&&c.addClass("unloaded"))})}),$(function(){var o=function(){const o="sidebar-display";let e=!1;const t=$("body");return{toggle(){!1===e?t.attr(o,""):t.removeAttr(o),e=!e}}}();$("#sidebar-trigger").click(o.toggle),$("#mask").click(o.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const e=$("#search-input"),t=ScrollHelper.getTopbarHeight();let o,l=0;function a(){0!==$(window).scrollTop()&&(ScrollHelper.lockOrientation(),ScrollHelper.hideTopbar())}screen.orientation?screen.orientation.onchange=()=>{var o=screen.orientation.type;"landscape-primary"!==o&&"landscape-secondary"!==o||a()}:$(window).on("orientationchange",()=>{$(window).width()<$(window).height()&&a()}),$(window).scroll(()=>{o=o||!0}),setInterval(()=>{o&&(!function(){var o=$(this).scrollTop();if(!(Math.abs(l-o)<=t)){if(o>l)ScrollHelper.hideTopbar(),e.is(":focus")&&e.blur();else if(o+$(window).height()<$(document).height()){if(ScrollHelper.hasScrollUpTask())return;ScrollHelper.topbarLocked()?ScrollHelper.unlockTopbar():ScrollHelper.orientationLocked()?ScrollHelper.unLockOrientation():ScrollHelper.showTopbar()}l=o}}(),o=!1)},250)}),$(function(){var e="div.post>h1:first-of-type";const t=$(e),n=$("#topbar-title");if(0!==t.length&&!t.hasClass("dynamic-title")&&!n.is(":hidden")){const s=n.text().trim();let l=t.text().trim(),a=!1,r=0;($("#page-category").length||$("#page-tag").length)&&/\s/.test(l)&&(l=l.replace(/[0-9]/g,"").trim()),t.offset().top<$(window).scrollTop()&&n.text(l);let o=new IntersectionObserver(o=>{var e,t;a?(t=$(window).scrollTop(),e=r<t,r=t,t=o[0],e?0===t.intersectionRatio&&n.text(l):1===t.intersectionRatio&&n.text(s)):a=!0},{rootMargin:"-48px 0px 0px 0px",threshold:[0,1]});o.observe(document.querySelector(e)),n.click(function(){$("body,html").animate({scrollTop:0},800)})}}),$(function(){const o=$(".collapse");o.on("hide.bs.collapse",function(){var o="h_"+$(this).attr("id").substring("l_".length);o&&($(`#${o} .far.fa-folder-open`).attr("class","far fa-folder fa-fw"),$(`#${o} i.fas`).addClass("rotate"),$("#"+o).removeClass("hide-border-bottom"))}),o.on("show.bs.collapse",function(){var o="h_"+$(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"))})});

assets/js/dist/commons.min.js

@@ -1,6 +1,6 @@
 /*!
- * Chirpy v5.0.1 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v5.2.0 (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))}),$(function(){$(".mode-toggle").click(e=>{const o=$(e.target);let t=o.prop("tagName")==="button".toUpperCase()?o:o.parent();t.blur(),flipMode()})}),$(function(){const e=$("#sidebar-trigger"),o=$("#search-trigger"),t=$("#search-cancel"),s=$("#search-cleaner"),l=$("#main"),a=$("#topbar-title"),n=$("#search-wrapper"),r=$("#search-result-wrapper"),d=$("#search-results"),i=$("#search-input"),c=$("#search-hints"),u=function(){let e=0;return{block(){e=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(e)},getOffset(){return e}}}(),p={on(){e.addClass("unloaded"),a.addClass("unloaded"),o.addClass("unloaded"),n.addClass("d-flex"),t.addClass("loaded")},off(){t.removeClass("loaded"),n.removeClass("d-flex"),e.removeClass("unloaded"),a.removeClass("unloaded"),o.removeClass("unloaded")}},f=function(){let e=!1;return{on(){e||(u.block(),r.removeClass("unloaded"),l.addClass("unloaded"),e=!0)},off(){e&&(d.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),r.addClass("unloaded"),s.removeClass("visible"),l.removeClass("unloaded"),u.release(),i.val(""),e=!1)},isVisible(){return e}}}();function h(){return t.hasClass("loaded")}o.click(function(){p.on(),f.on(),i.focus()}),t.click(function(){p.off(),f.off()}),i.focus(function(){n.addClass("input-focus")}),i.focusout(function(){n.removeClass("input-focus")}),i.on("keyup",function(e){8===e.keyCode&&""===i.val()?h()?c.removeClass("unloaded"):f.off():""!==i.val()&&(f.on(),s.hasClass("visible")||s.addClass("visible"),h()&&c.addClass("unloaded"))}),s.on("click",function(){i.val(""),h()?(c.removeClass("unloaded"),d.empty()):f.off(),i.focus(),s.removeClass("visible")})}),$(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 t=$("#topbar-wrapper"),s=$("#panel-wrapper"),l=$("#search-input"),a="topbar-up",n="topbar-down",r="toc-scrolling-up";let o,d=0;const i=t.outerHeight(),c=t.outerHeight();$(window).scroll(function(e){$("#topbar-title").is(":hidden")&&(o=!0)}),setInterval(function(){o&&(function(){var e,o=$(this).scrollTop();Math.abs(d-o)<=i||(o>d?o>c&&(t.removeClass(n).addClass(a),s.removeClass(n),l.is(":focus")&&l.blur()):o+$(window).height()<$(document).height()&&(void 0!==(e=t.attr(r))?"false"===e&&t.removeAttr(r):(t.removeClass(a).addClass(n),s.addClass(n))),d=o)}(),o=!1)},250)}),$(function(){const e=$("#topbar-title"),o=$("div.post>h1"),t=e.text().trim();let s=(0<o.length?o:$("h1")).text().trim();($("#page-category").length||$("#page-tag").length)&&/\s/.test(s)&&(s=s.replace(/[0-9]/g,"").trim()),$(window).scroll(function(){return!($("#post-list").length||o.is(":hidden")||e.is(":hidden")||$("#sidebar.sidebar-expand").length)&&void(95<=$(this).scrollTop()?e.text()!==s&&e.text(s):e.text()!==t&&e.text(t))}),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(()=>($("body,html").animate({scrollTop:0},800),!1))}),$(function(){$(".mode-toggle").click(o=>{const e=$(o.target);let t=e.prop("tagName")==="button".toUpperCase()?e:e.parent();t.blur(),flipMode()})});const ScrollHelper=function(){const o=$("body"),e="data-topbar-visible",t=$("#topbar-wrapper").outerHeight();let l=0,r=!1,a=!1;return{hideTopbar:()=>o.attr(e,!1),showTopbar:()=>o.attr(e,!0),addScrollUpTask:()=>{l+=1,r=r||!0},popScrollUpTask:()=>--l,hasScrollUpTask:()=>0<l,topbarLocked:()=>!0===r,unlockTopbar:()=>r=!1,getTopbarHeight:()=>t,orientationLocked:()=>!0===a,lockOrientation:()=>a=!0,unLockOrientation:()=>a=!1}}();$(function(){const o=$("#sidebar-trigger"),e=$("#search-trigger"),t=$("#search-cancel"),l=$("#main"),r=$("#topbar-title"),a=$("#search-wrapper"),n=$("#search-result-wrapper"),s=$("#search-results"),i=$("#search-input"),c=$("#search-hints"),d=function(){let o=0;return{block(){o=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(o)},getOffset(){return o}}}(),p={on(){o.addClass("unloaded"),r.addClass("unloaded"),e.addClass("unloaded"),a.addClass("d-flex"),t.addClass("loaded")},off(){t.removeClass("loaded"),a.removeClass("d-flex"),o.removeClass("unloaded"),r.removeClass("unloaded"),e.removeClass("unloaded")}},u=function(){let o=!1;return{on(){o||(d.block(),n.removeClass("unloaded"),l.addClass("unloaded"),o=!0)},off(){o&&(s.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),n.addClass("unloaded"),l.removeClass("unloaded"),d.release(),i.val(""),o=!1)},isVisible(){return o}}}();function f(){return t.hasClass("loaded")}e.click(function(){p.on(),u.on(),i.focus()}),t.click(function(){p.off(),u.off()}),i.focus(function(){a.addClass("input-focus")}),i.focusout(function(){a.removeClass("input-focus")}),i.on("input",()=>{""===i.val()?f()?c.removeClass("unloaded"):u.off():(u.on(),f()&&c.addClass("unloaded"))})}),$(function(){var o=function(){const o="sidebar-display";let e=!1;const t=$("body");return{toggle(){!1===e?t.attr(o,""):t.removeAttr(o),e=!e}}}();$("#sidebar-trigger").click(o.toggle),$("#mask").click(o.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const e=$("#search-input"),t=ScrollHelper.getTopbarHeight();let o,l=0;function r(){0!==$(window).scrollTop()&&(ScrollHelper.lockOrientation(),ScrollHelper.hideTopbar())}screen.orientation?screen.orientation.onchange=()=>{var o=screen.orientation.type;"landscape-primary"!==o&&"landscape-secondary"!==o||r()}:$(window).on("orientationchange",()=>{$(window).width()<$(window).height()&&r()}),$(window).scroll(()=>{o=o||!0}),setInterval(()=>{o&&(!function(){var o=$(this).scrollTop();if(!(Math.abs(l-o)<=t)){if(o>l)ScrollHelper.hideTopbar(),e.is(":focus")&&e.blur();else if(o+$(window).height()<$(document).height()){if(ScrollHelper.hasScrollUpTask())return;ScrollHelper.topbarLocked()?ScrollHelper.unlockTopbar():ScrollHelper.orientationLocked()?ScrollHelper.unLockOrientation():ScrollHelper.showTopbar()}l=o}}(),o=!1)},250)}),$(function(){var e="div.post>h1:first-of-type";const t=$(e),n=$("#topbar-title");if(0!==t.length&&!t.hasClass("dynamic-title")&&!n.is(":hidden")){const s=n.text().trim();let l=t.text().trim(),r=!1,a=0;($("#page-category").length||$("#page-tag").length)&&/\s/.test(l)&&(l=l.replace(/[0-9]/g,"").trim()),t.offset().top<$(window).scrollTop()&&n.text(l);let o=new IntersectionObserver(o=>{var e,t;r?(t=$(window).scrollTop(),e=a<t,a=t,t=o[0],e?0===t.intersectionRatio&&n.text(l):1===t.intersectionRatio&&n.text(s)):r=!0},{rootMargin:"-48px 0px 0px 0px",threshold:[0,1]});o.observe(document.querySelector(e)),n.click(function(){$("body,html").animate({scrollTop:0},800)})}});

assets/js/dist/home.min.js

@@ -1,6 +1,6 @@
 /*!
- * Chirpy v5.0.1 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v5.2.0 (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))}),$(function(){$(".mode-toggle").click(t=>{const e=$(t.target);let o=e.prop("tagName")==="button".toUpperCase()?e:e.parent();o.blur(),flipMode()})}),$(function(){const t=$("#sidebar-trigger"),e=$("#search-trigger"),o=$("#search-cancel"),a=$("#search-cleaner"),s=$("#main"),l=$("#topbar-title"),n=$("#search-wrapper"),r=$("#search-result-wrapper"),i=$("#search-results"),d=$("#search-input"),c=$("#search-hints"),u=function(){let t=0;return{block(){t=window.scrollY,$("html,body").scrollTop(0)},release(){$("html,body").scrollTop(t)},getOffset(){return t}}}(),p={on(){t.addClass("unloaded"),l.addClass("unloaded"),e.addClass("unloaded"),n.addClass("d-flex"),o.addClass("loaded")},off(){o.removeClass("loaded"),n.removeClass("d-flex"),t.removeClass("unloaded"),l.removeClass("unloaded"),e.removeClass("unloaded")}},f=function(){let t=!1;return{on(){t||(u.block(),r.removeClass("unloaded"),s.addClass("unloaded"),t=!0)},off(){t&&(i.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),r.addClass("unloaded"),a.removeClass("visible"),s.removeClass("unloaded"),u.release(),d.val(""),t=!1)},isVisible(){return t}}}();function h(){return o.hasClass("loaded")}e.click(function(){p.on(),f.on(),d.focus()}),o.click(function(){p.off(),f.off()}),d.focus(function(){n.addClass("input-focus")}),d.focusout(function(){n.removeClass("input-focus")}),d.on("keyup",function(t){8===t.keyCode&&""===d.val()?h()?c.removeClass("unloaded"):f.off():""!==d.val()&&(f.on(),a.hasClass("visible")||a.addClass("visible"),h()&&c.addClass("unloaded"))}),a.on("click",function(){d.val(""),h()?(c.removeClass("unloaded"),i.empty()):f.off(),d.focus(),a.removeClass("visible")})}),$(function(){var t=function(){const t="sidebar-display";let e=!1;const o=$("body");return{toggle(){!1===e?o.attr(t,""):o.removeAttr(t),e=!e}}}();$("#sidebar-trigger").click(t.toggle),$("#mask").click(t.toggle)}),$(function(){$('[data-toggle="tooltip"]').tooltip()}),$(function(){const o=$("#topbar-wrapper"),a=$("#panel-wrapper"),s=$("#search-input"),l="topbar-up",n="topbar-down",r="toc-scrolling-up";let e,i=0;const d=o.outerHeight(),c=o.outerHeight();$(window).scroll(function(t){$("#topbar-title").is(":hidden")&&(e=!0)}),setInterval(function(){e&&(function(){var t,e=$(this).scrollTop();Math.abs(i-e)<=d||(e>i?e>c&&(o.removeClass(n).addClass(l),a.removeClass(n),s.is(":focus")&&s.blur()):e+$(window).height()<$(document).height()&&(void 0!==(t=o.attr(r))?"false"===t&&o.removeAttr(r):(o.removeClass(l).addClass(n),a.addClass(n))),i=e)}(),e=!1)},250)}),$(function(){const t=$("#topbar-title"),e=$("div.post>h1"),o=t.text().trim();let a=(0<e.length?e:$("h1")).text().trim();($("#page-category").length||$("#page-tag").length)&&/\s/.test(a)&&(a=a.replace(/[0-9]/g,"").trim()),$(window).scroll(function(){return!($("#post-list").length||e.is(":hidden")||t.is(":hidden")||$("#sidebar.sidebar-expand").length)&&void(95<=$(this).scrollTop()?t.text()!==a&&t.text(a):t.text()!==o&&t.text(o))}),t.click(function(){$("body,html").animate({scrollTop:0},800)})}),$(function(){let o=$(".timeago").length,t=void 0;const s=$("meta[name=day-prompt]").attr("content"),l=$("meta[name=hour-prompt]").attr("content"),n=$("meta[name=minute-prompt]").attr("content"),r=$("meta[name=justnow-prompt]").attr("content");function e(){return $(".timeago").each(function(){var t,e;!1!==$(this)[0].hasAttribute("date")?(e=function(t,e){let o=new Date,a=new Date(t);return a.getFullYear()!==o.getFullYear()||a.getMonth()!==o.getMonth()?e:(t=Math.floor((o-a)/1e3),1<=(e=Math.floor(t/86400))?` ${e} `+s:1<=(e=Math.floor(t/3600))?` ${e} `+l:1<=(t=Math.floor(t/60))?` ${t} `+n:r)}($(this).attr("date"),t=$(this).text()))===t?$(this).removeAttr("date"):$(this).text(e):--o}),0===o&&void 0!==t&&clearInterval(t),o}0!==o&&0<e()&&(t=setInterval(e,6e4))});
+$(function(){$(window).scroll(()=>{50<$(this).scrollTop()&&"none"===$("#sidebar-trigger").css("display")?$("#back-to-top").fadeIn():$("#back-to-top").fadeOut()}),$("#back-to-top").click(()=>($("body,html").animate({scrollTop:0},800),!1))}),$(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,l=!1,r=!1;return{hideTopbar:()=>e.attr(t,!1),showTopbar:()=>e.attr(t,!0),addScrollUpTask:()=>{a+=1,l=l||!0},popScrollUpTask:()=>--a,hasScrollUpTask:()=>0<a,topbarLocked:()=>!0===l,unlockTopbar:()=>l=!1,getTopbarHeight:()=>o,orientationLocked:()=>!0===r,lockOrientation:()=>r=!0,unLockOrientation:()=>r=!1}}(),LocaleHelper=($(function(){const e=$("#sidebar-trigger"),t=$("#search-trigger"),o=$("#search-cancel"),a=$("#main"),l=$("#topbar-title"),r=$("#search-wrapper"),n=$("#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(){$("html,body").scrollTop(e)},getOffset(){return e}}}(),p={on(){e.addClass("unloaded"),l.addClass("unloaded"),t.addClass("unloaded"),r.addClass("d-flex"),o.addClass("loaded")},off(){o.removeClass("loaded"),r.removeClass("d-flex"),e.removeClass("unloaded"),l.removeClass("unloaded"),t.removeClass("unloaded")}},u=function(){let e=!1;return{on(){e||(d.block(),n.removeClass("unloaded"),a.addClass("unloaded"),e=!0)},off(){e&&(s.empty(),c.hasClass("unloaded")&&c.removeClass("unloaded"),n.addClass("unloaded"),a.removeClass("unloaded"),d.release(),i.val(""),e=!1)},isVisible(){return e}}}();function f(){return o.hasClass("loaded")}t.click(function(){p.on(),u.on(),i.focus()}),o.click(function(){p.off(),u.off()}),i.focus(function(){r.addClass("input-focus")}),i.focusout(function(){r.removeClass("input-focus")}),i.on("input",()=>{""===i.val()?f()?c.removeClass("unloaded"):u.off():(u.on(),f()&&c.addClass("unloaded"))})}),$(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=$("#search-input"),o=ScrollHelper.getTopbarHeight();let e,a=0;function l(){0!==$(window).scrollTop()&&(ScrollHelper.lockOrientation(),ScrollHelper.hideTopbar())}screen.orientation?screen.orientation.onchange=()=>{var e=screen.orientation.type;"landscape-primary"!==e&&"landscape-secondary"!==e||l()}:$(window).on("orientationchange",()=>{$(window).width()<$(window).height()&&l()}),$(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(),l=!1,r=0;($("#page-category").length||$("#page-tag").length)&&/\s/.test(a)&&(a=a.replace(/[0-9]/g,"").trim()),o.offset().top<$(window).scrollTop()&&n.text(a);let e=new IntersectionObserver(e=>{var t,o;l?(o=$(window).scrollTop(),t=r<o,r=o,o=e[0],t?0===o.intersectionRatio&&n.text(a):1===o.intersectionRatio&&n.text(s)):l=!0},{rootMargin:"-48px 0px 0px 0px",threshold:[0,1]});e.observe(document.querySelector(t)),n.click(function(){$("body,html").animate({scrollTop:0},800)})}}),function(){const e=$('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(){dayjs.locale(LocaleHelper.locale()),dayjs.extend(window.dayjs_plugin_localizedFormat),$(`[${LocaleHelper.attrTimestamp()}]`).each(function(){const e=dayjs.unix(LocaleHelper.getTimestamp($(this)));var t=e.format(LocaleHelper.getDateFormat($(this))),t=($(this).text(t),$(this).removeAttr(LocaleHelper.attrTimestamp()),$(this).removeAttr(LocaleHelper.attrDateFormat()),$(this).attr("data-toggle"));void 0!==t&&"tooltip"===t&&(t=e.format("llll"),$(this).attr("data-original-title",t))})});

assets/js/dist/misc.min.js

@@ -0,0 +1,6 @@
+/*!
+ * Chirpy v5.2.0 (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))}),$(function(){$(".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=$("#topbar-wrapper").outerHeight();let a=0,l=!1,r=!1;return{hideTopbar:()=>e.attr(t,!1),showTopbar:()=>e.attr(t,!0),addScrollUpTask:()=>{a+=1,l=l||!0},popScrollUpTask:()=>--a,hasScrollUpTask:()=>0<a,topbarLocked:()=>!0===l,unlockTopbar:()=>l=!1,getTopbarHeight:()=>o,orientationLocked:()=>!0===r,lockOrientation:()=>r=!0,unLockOrientation:()=>r=!1}}(),LocaleHelper=($(function(){const e=$("#sidebar-trigger"),t=$("#search-trigger"),o=$("#search-cancel"),a=$("#main"),l=$("#topbar-title"),r=$("#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"),l.addClass("unloaded"),t.addClass("unloaded"),r.addClass("d-flex"),o.addClass("loaded")},off(){o.removeClass("loaded"),r.removeClass("d-flex"),e.removeClass("unloaded"),l.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(){r.addClass("input-focus")}),i.focusout(function(){r.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 l(){0!==$(window).scrollTop()&&(ScrollHelper.lockOrientation(),ScrollHelper.hideTopbar())}screen.orientation?screen.orientation.onchange=()=>{var e=screen.orientation.type;"landscape-primary"!==e&&"landscape-secondary"!==e||l()}:$(window).on("orientationchange",()=>{$(window).width()<$(window).height()&&l()}),$(window).scroll(()=>{e=e||!0}),setInterval(()=>{e&&(!function(){var e=$(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=$("#topbar-title");if(0!==o.length&&!o.hasClass("dynamic-title")&&!n.is(":hidden")){const s=n.text().trim();let a=o.text().trim(),l=!1,r=0;($("#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;l?(o=$(window).scrollTop(),t=r<o,r=o,o=e[0],t?0===o.intersectionRatio&&n.text(a):1===o.intersectionRatio&&n.text(s)):l=!0},{rootMargin:"-48px 0px 0px 0px",threshold:[0,1]});e.observe(document.querySelector(t)),n.click(function(){$("body,html").animate({scrollTop:0},800)})}}),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)}}());$(function(){dayjs.locale(LocaleHelper.locale()),dayjs.extend(window.dayjs_plugin_localizedFormat),$(`[${LocaleHelper.attrTimestamp()}]`).each(function(){const e=dayjs.unix(LocaleHelper.getTimestamp($(this)));var t=e.format(LocaleHelper.getDateFormat($(this))),t=($(this).text(t),$(this).removeAttr(LocaleHelper.attrTimestamp()),$(this).removeAttr(LocaleHelper.attrDateFormat()),$(this).attr("data-toggle"));void 0!==t&&"tooltip"===t&&(t=e.format("llll"),$(this).attr("data-original-title",t))})});

assets/js/dist/pvreport.min.js

@@ -1,6 +1,6 @@
 /*!
- * Chirpy v5.0.1 (https://github.com/cotes2020/jekyll-theme-chirpy/)
+ * Chirpy v5.2.0 (https://github.com/cotes2020/jekyll-theme-chirpy/)
  * © 2019 Cotes Chung
  * MIT Licensed
  */
-const getInitStatus=function(){let t=!1;return()=>{var e=t;return t=t||!0,e}}(),PvOpts=function(){function t(e){return $(e).attr("content")}function e(e){e=t(e);return void 0!==e&&!1!==e}return{getProxyMeta(){return t("meta[name=pv-proxy-endpoint]")},getLocalMeta(){return t("meta[name=pv-cache-path]")},hasProxyMeta(){return e("meta[name=pv-proxy-endpoint]")},hasLocalMeta(){return e("meta[name=pv-cache-path]")}}}(),PvStorage=function(){const a={KEY_PV:"pv",KEY_PV_SRC:"pv_src",KEY_CREATION:"pv_created_date"},t={LOCAL:"same-origin",PROXY:"cors"};function r(e){return localStorage.getItem(e)}function o(e,t){localStorage.setItem(e,t)}function n(e,t){o(a.KEY_PV,e),o(a.KEY_PV_SRC,t),o(a.KEY_CREATION,(new Date).toJSON())}return{keysCount(){return Object.keys(a).length},hasCache(){return null!==localStorage.getItem(a.KEY_PV)},getCache(){return JSON.parse(localStorage.getItem(a.KEY_PV))},saveLocalCache(e){n(e,t.LOCAL)},saveProxyCache(e){n(e,t.PROXY)},isExpired(){let e=new Date(r(a.KEY_CREATION));return e.setHours(e.getHours()+1),Date.now()>=e.getTime()},isFromLocal(){return r(a.KEY_PV_SRC)===t.LOCAL},isFromProxy(){return r(a.KEY_PV_SRC)===t.PROXY},newerThan(e){return PvStorage.getCache().totalsForAllResults["ga:pageviews"]>e.totalsForAllResults["ga:pageviews"]},inspectKeys(){if(localStorage.length===PvStorage.keysCount())for(let e=0;e<localStorage.length;e++)switch(localStorage.key(e)){case a.KEY_PV:case a.KEY_PV_SRC:case a.KEY_CREATION:break;default:return void localStorage.clear()}else localStorage.clear()}}}();function countUp(t,a,r){if(t<a){let e=new CountUp(r,t,a);e.error?console.error(e.error):e.start()}}function countPV(t,a){let r=0;if(void 0!==a)for(let e=0;e<a.length;++e)if(a[parseInt(e,10)][0]===t){r+=parseInt(a[parseInt(e,10)][1],10);break}return r}function tacklePV(e,t,a,r){let o=countPV(t,e);o=0===o?1:o,r?(r=parseInt(a.text().replace(/,/g,""),10),o>r&&countUp(r,o,a.attr("id"))):a.text((new Intl.NumberFormat).format(o))}function displayPageviews(e){if(void 0!==e){let t=getInitStatus();const a=e.rows;0<$("#post-list").length?$(".post-preview").each(function(){var e=$(this).find("a").attr("href");tacklePV(a,e,$(this).find(".pageviews"),t)}):0<$(".post").length&&(e=window.location.pathname,tacklePV(a,e,$("#pv"),t))}}function fetchProxyPageviews(){PvOpts.hasProxyMeta()&&$.ajax({type:"GET",url:PvOpts.getProxyMeta(),dataType:"jsonp",jsonpCallback:"displayPageviews",success:e=>{PvStorage.saveProxyCache(JSON.stringify(e))},error:(e,t,a)=>{console.log("Failed to load pageviews from proxy server: "+a)}})}function fetchLocalPageviews(t=!1){return fetch(PvOpts.getLocalMeta()).then(e=>e.json()).then(e=>{t&&PvStorage.isFromProxy()&&PvStorage.newerThan(e)||(displayPageviews(e),PvStorage.saveLocalCache(JSON.stringify(e)))})}$(function(){$(".pageviews").length<=0||(PvStorage.inspectKeys(),PvStorage.hasCache()?(displayPageviews(PvStorage.getCache()),PvStorage.isExpired()?PvOpts.hasLocalMeta()?fetchLocalPageviews(!0).then(fetchProxyPageviews):fetchProxyPageviews():PvStorage.isFromLocal()&&fetchProxyPageviews()):PvOpts.hasLocalMeta()?fetchLocalPageviews().then(fetchProxyPageviews):fetchProxyPageviews())});
+const getInitStatus=function(){let t=!1;return()=>{var e=t;return t=t||!0,e}}(),PvOpts=function(){function t(e){return $(e).attr("content")}function e(e){e=t(e);return void 0!==e&&!1!==e}return{getProxyMeta(){return t("meta[name=pv-proxy-endpoint]")},getLocalMeta(){return t("meta[name=pv-cache-path]")},hasProxyMeta(){return e("meta[name=pv-proxy-endpoint]")},hasLocalMeta(){return e("meta[name=pv-cache-path]")}}}(),PvStorage=function(){const a={KEY_PV:"pv",KEY_PV_SRC:"pv_src",KEY_CREATION:"pv_created_date"},t={LOCAL:"same-origin",PROXY:"cors"};function r(e){return localStorage.getItem(e)}function o(e,t){localStorage.setItem(e,t)}function n(e,t){o(a.KEY_PV,e),o(a.KEY_PV_SRC,t),o(a.KEY_CREATION,(new Date).toJSON())}return{keysCount(){return Object.keys(a).length},hasCache(){return null!==localStorage.getItem(a.KEY_PV)},getCache(){return JSON.parse(localStorage.getItem(a.KEY_PV))},saveLocalCache(e){n(e,t.LOCAL)},saveProxyCache(e){n(e,t.PROXY)},isExpired(){let e=new Date(r(a.KEY_CREATION));return e.setHours(e.getHours()+1),Date.now()>=e.getTime()},isFromLocal(){return r(a.KEY_PV_SRC)===t.LOCAL},isFromProxy(){return r(a.KEY_PV_SRC)===t.PROXY},newerThan(e){return PvStorage.getCache().totalsForAllResults["ga:pageviews"]>e.totalsForAllResults["ga:pageviews"]},inspectKeys(){if(localStorage.length!==PvStorage.keysCount())localStorage.clear();else for(let e=0;e<localStorage.length;e++)switch(localStorage.key(e)){case a.KEY_PV:case a.KEY_PV_SRC:case a.KEY_CREATION:break;default:return void localStorage.clear()}}}}();function countUp(t,a,r){if(t<a){let e=new CountUp(r,t,a);e.error?console.error(e.error):e.start()}}function countPV(t,a){let r=0;if(void 0!==a)for(let e=0;e<a.length;++e)if(a[parseInt(e,10)][0]===t){r+=parseInt(a[parseInt(e,10)][1],10);break}return r}function tacklePV(e,t,a,r){let o=countPV(t,e);o=0===o?1:o,r?(t=parseInt(a.text().replace(/,/g,""),10),o>t&&countUp(t,o,a.attr("id"))):a.text((new Intl.NumberFormat).format(o))}function displayPageviews(e){if(void 0!==e){let t=getInitStatus();const a=e.rows;0<$("#post-list").length?$(".post-preview").each(function(){var e=$(this).find("a").attr("href");tacklePV(a,e,$(this).find(".pageviews"),t)}):0<$(".post").length&&(e=window.location.pathname,tacklePV(a,e,$("#pv"),t))}}function fetchProxyPageviews(){PvOpts.hasProxyMeta()&&$.ajax({type:"GET",url:PvOpts.getProxyMeta(),dataType:"jsonp",jsonpCallback:"displayPageviews",success:e=>{PvStorage.saveProxyCache(JSON.stringify(e))},error:(e,t,a)=>{console.log("Failed to load pageviews from proxy server: "+a)}})}function fetchLocalPageviews(t=!1){return fetch(PvOpts.getLocalMeta()).then(e=>e.json()).then(e=>{t&&PvStorage.isFromProxy()&&PvStorage.newerThan(e)||(displayPageviews(e),PvStorage.saveLocalCache(JSON.stringify(e)))})}$(function(){$(".pageviews").length<=0||(PvStorage.inspectKeys(),PvStorage.hasCache()?(displayPageviews(PvStorage.getCache()),PvStorage.isExpired()?PvOpts.hasLocalMeta()?fetchLocalPageviews(!0).then(fetchProxyPageviews):fetchProxyPageviews():PvStorage.isFromLocal()&&fetchProxyPageviews()):PvOpts.hasLocalMeta()?fetchLocalPageviews().then(fetchProxyPageviews):fetchProxyPageviews())});

assets/js/pwa/app.js

@@ -3,7 +3,58 @@ layout: compress
 permalink: '/app.js'
 ---
 
-/* Registering Service Worker */
-if('serviceWorker' in navigator) {
-  navigator.serviceWorker.register('{{ "/sw.js" | relative_url }}');
-};
+const keyWaiting = 'sw-waiting';
+const $notification = $('#notification');
+const $btnRefresh = $('#notification .toast-body>button');
+
+function skipWating(registration) {
+  registration.waiting.postMessage('SKIP_WAITING');
+  localStorage.removeItem(keyWaiting);
+}
+
+if ('serviceWorker' in navigator) {
+  /* Registering Service Worker */
+  navigator.serviceWorker.register('{{ "/sw.js" | relative_url }}')
+    .then(registration => {
+      if (registration) {
+        registration.addEventListener('updatefound', () => {
+          let serviceWorker = registration.installing;
+
+          serviceWorker.addEventListener('statechange', () => {
+            if (serviceWorker.state === 'installed') {
+              if (navigator.serviceWorker.controller) {
+                $notification.toast('show');
+                /* in case the user ignores the notification */
+                localStorage.setItem(keyWaiting, true);
+              }
+            }
+          });
+        });
+
+        $btnRefresh.click(() => {
+          skipWating(registration);
+          $notification.toast('hide');
+        });
+
+        if (localStorage.getItem(keyWaiting)) {
+          if (registration.waiting) {
+            /* there's a new Service Worker waiting to be activated */
+            $notification.toast('show');
+          } else {
+            /* closed all open pages after receiving notification */
+            localStorage.removeItem(keyWaiting);
+          }
+        }
+      }
+    });
+
+  let refreshing = false;
+
+  /* Detect controller change and refresh all the opened tabs */
+  navigator.serviceWorker.addEventListener('controllerchange', () => {
+    if (!refreshing) {
+      window.location.reload();
+      refreshing = true;
+    }
+  });
+}

assets/js/pwa/sw.js

@@ -6,7 +6,7 @@ permalink: '/sw.js'
 
 self.importScripts('{{ "/assets/js/data/swcache.js" | relative_url }}');
 
-const cacheName = 'chirpy-{{ "now" | date: "%Y%m%d.%H%M" }}';
+const cacheName = 'chirpy-{{ "now" | date: "%Y%m%d.%H%M%S" }}';
 
 function verifyDomain(url) {
   for (const domain of allowedDomains) {
@@ -28,60 +28,62 @@ function isExcluded(url) {
   return false;
 }
 
-self.addEventListener('install', e => {
-  self.skipWaiting();
-  e.waitUntil(
+self.addEventListener('install', event => {
+  event.waitUntil(
     caches.open(cacheName).then(cache => {
       return cache.addAll(resource);
     })
   );
 });
 
-self.addEventListener('fetch', event => {
-  event.respondWith(
-    caches.match(event.request)
-      .then(response => {
-        if (response) {
-          return response;
-        }
-
-        return fetch(event.request)
-          .then(response => {
-            const url = event.request.url;
-
-            if (event.request.method !== 'GET' ||
-              !verifyDomain(url) ||
-              isExcluded(url)) {
-              return response;
-            }
-
-            /*
-              see: <https://developers.google.com/web/fundamentals/primers/service-workers#cache_and_return_requests>
-             */
-            let responseToCache = response.clone();
-
-            caches.open(cacheName)
-              .then(cache => {
-                /* console.log('[sw] Caching new resource: ' + event.request.url); */
-                cache.put(event.request, responseToCache);
-              });
-
-            return response;
-          });
-      })
-    );
-});
-
-self.addEventListener('activate', e => {
-  e.waitUntil(
+self.addEventListener('activate', event => {
+  event.waitUntil(
     caches.keys().then(keyList => {
-          return Promise.all(
-            keyList.map(key => {
-              if(key !== cacheName) {
-                return caches.delete(key);
-              }
-            })
-          );
+      return Promise.all(
+        keyList.map(key => {
+          if (key !== cacheName) {
+            return caches.delete(key);
+          }
+        })
+      );
+    })
+  );
+});
+
+self.addEventListener('message', (event) => {
+  if (event.data === 'SKIP_WAITING') {
+    self.skipWaiting();
+  }
+});
+
+self.addEventListener('fetch', event => {
+  event.respondWith(
+    caches.match(event.request).then(response => {
+      if (response) {
+        return response;
+      }
+
+      return fetch(event.request).then(response => {
+        const url = event.request.url;
+
+        if (event.request.method !== 'GET' ||
+              !verifyDomain(url) ||
+              isExcluded(url)) {
+          return response;
+        }
+
+        /*
+          see: <https://developers.google.com/web/fundamentals/primers/service-workers#cache_and_return_requests>
+        */
+        let responseToCache = response.clone();
+
+        caches.open(cacheName).then(cache => {
+          /* console.log('[sw] Caching new resource: ' + event.request.url); */
+          cache.put(event.request, responseToCache);
+        });
+
+        return response;
+      });
     })
   );
 });

assets/js/pwa/unregister.js

@@ -0,0 +1,12 @@
+---
+layout: compress
+permalink: '/unregister.js'
+---
+
+if ('serviceWorker' in navigator) {
+  navigator.serviceWorker.getRegistrations().then((registrations) => {
+    for (let reg of registrations) {
+      reg.unregister();
+    }
+  });
+}

gulpfile.js/tasks/js.js

@@ -11,7 +11,7 @@ const insert = require('gulp-insert');
 const fs = require('fs');
 
 const JS_SRC = '_javascript';
-const JS_DEST = `assets/js/dist/`;
+const JS_DEST = `assets/js/dist`;
 
 function concatJs(files, output) {
   return src(files)
@@ -34,7 +34,7 @@ const commonsJs = () => {
 const homeJs = () => {
   return concatJs([
       `${JS_SRC}/commons/*.js`,
-      `${JS_SRC}/utils/timeago.js`
+      `${JS_SRC}/utils/locale-datetime.js`
     ],
     'home'
   );
@@ -44,7 +44,7 @@ const postJs = () => {
   return concatJs([
       `${JS_SRC}/commons/*.js`,
       `${JS_SRC}/utils/img-extra.js`,
-      `${JS_SRC}/utils/timeago.js`,
+      `${JS_SRC}/utils/locale-datetime.js`,
       `${JS_SRC}/utils/checkbox.js`,
       `${JS_SRC}/utils/clipboard.js`,
       // 'smooth-scroll.js' must be called after ToC is ready
@@ -66,17 +66,27 @@ const pageJs = () => {
       `${JS_SRC}/commons/*.js`,
       `${JS_SRC}/utils/checkbox.js`,
       `${JS_SRC}/utils/img-extra.js`,
-      `${JS_SRC}/utils/clipboard.js`
+      `${JS_SRC}/utils/clipboard.js`,
+      `${JS_SRC}/utils/smooth-scroll.js`
     ], 'page'
   );
 };
 
+const miscJs = () => {
+  return concatJs([
+      `${JS_SRC}/commons/*.js`,
+      `${JS_SRC}/utils/locale-datetime.js`
+    ], 'misc'
+  );
+};
+
 // GA pageviews report
 const pvreportJs = () => {
   return concatJs(`${JS_SRC}/utils/pageviews.js`, 'pvreport');
 };
 
-const buildJs = parallel(commonsJs, homeJs, postJs, categoriesJs, pageJs, pvreportJs);
+const buildJs = parallel(
+  commonsJs, homeJs, postJs, categoriesJs, pageJs, miscJs, pvreportJs);
 
 exports.build = series(buildJs, minifyJs);
 
@@ -85,8 +95,7 @@ exports.liveRebuild = () => {
 
   watch([
       `${ JS_SRC }/commons/*.js`,
-      `${ JS_SRC }/utils/*.js`,
-      `${ JS_SRC }/lib/*.js`
+      `${ JS_SRC }/utils/*.js`
     ],
     buildJs
   );