feat(comments): DisqusJS integration (#307)

* add comment provider: DisqusJS

* Simplify `if` condition, and format code

* Load disqusjs.scss only when it's enabled

* Use `let` instead of `var`

Co-authored-by: sspirits <admin@lv5.moe>
Co-authored-by: Jimmy Cai <github@jimmycai.com>

assets/scss/partials/comments/disqusjs.scss

@@ -0,0 +1,394 @@
+.disqus-container {
+    background-color: var(--card-background);
+    border-radius: var(--card-border-radius);
+    box-shadow: var(--shadow-l1);
+    padding: var(--card-padding);
+}
+
+#dsqjs * {
+    margin: 0;
+    padding: 0
+}
+
+#dsqjs a {
+    text-decoration: none;
+    color: #076dd0
+}
+
+#dsqjs .dsqjs-hide {
+    display: none!important
+}
+
+#dsqjs .dsqjs-disabled {
+    cursor: not-allowed;
+    opacity: .5
+}
+
+#dsqjs #dsqjs-msg {
+    text-align: center;
+    margin-top: 4px;
+    margin-bottom: 4px;
+    font-size: 14px
+}
+
+#dsqjs #dsqjs-msg .dsqjs-msg-btn {
+    cursor: pointer
+}
+
+#dsqjs .dsqjs-bullet {
+    line-height: 1.4;
+    margin: 0 2px
+}
+
+#dsqjs .dsqjs-bullet:after {
+    color: #c2c6cc;
+    content: "·";
+    font-weight: 700
+}
+
+#dsqjs .dsqjs-clearfix:after,#dsqjs .dsqjs-clearfix:before {
+    display: table;
+    content: "";
+    line-height: 0;
+    clear: both
+}
+
+#dsqjs .dsqjs-nav {
+    position: relative;
+    margin: 0 0 20px;
+    border-bottom: 2px solid #e7e9ee
+}
+
+#dsqjs ol,#dsqjs ul {
+    list-style: none;
+    list-style-type: none
+}
+
+#dsqjs .dsqjs-no-comment {
+    text-align: center;
+    font-size: 16px;
+    line-height: 1.5;
+    word-wrap: break-word;
+    overflow: hidden;
+    color: #2a2e2e;
+    margin-bottom: 6px
+}
+
+#dsqjs .dsqjs-nav-tab {
+    float: left;
+    text-transform: capitalize;
+    font-size: 15px;
+    padding: 12px 8px;
+    color: #656c7a;
+    display: block;
+    margin: 0 15px 0 0;
+    font-weight: 700;
+    line-height: 1;
+    position: relative;
+    transition: all .2s ease-in-out
+}
+
+#dsqjs .dsqjs-nav-tab:last-child {
+    margin: 0
+}
+
+#dsqjs .dsqjs-tab-active {
+    color: #2a2e2e
+}
+
+#dsqjs .dsqjs-tab-active>span:after {
+    content: " ";
+    display: block;
+    height: 2px;
+    background-color: #076dd0!important;
+    position: absolute;
+    bottom: -5px;
+    left: 0;
+    right: 0
+}
+
+#dsqjs .dsqjs-post-list .dsqjs-post-item {
+    position: relative;
+    margin-bottom: 16px
+}
+
+#dsqjs .dsqjs-post-list .dsqjs-post-avatar {
+    float: left;
+    margin-right: 10px;
+    position: relative;
+    background: #dbdfe4;
+    padding: 0;
+    display: block;
+    border-radius: 4px
+}
+
+#dsqjs .dsqjs-post-list .dsqjs-post-avatar img {
+    width: 44px;
+    height: 44px;
+    display: block;
+    border-radius: 4px
+}
+
+#dsqjs .dsqjs-post-list .dsqjs-post-header {
+    line-height: 1;
+    font-size: 14px;
+    margin-bottom: 3px
+}
+
+#dsqjs .dsqjs-post-list .dsqjs-post-header .dsqjs-post-author {
+    color: #656c7a;
+    font-weight: 700
+}
+
+#dsqjs .dsqjs-post-list .dsqjs-post-header .dsqjs-admin-badge {
+    color: #fff;
+    background: #687a86;
+    padding: 1px 3px;
+    margin-left: 4px;
+    font-size: 12px;
+    line-height: 1;
+    font-weight: 700;
+    border-radius: 3px;
+    display: inline-block;
+    position: relative;
+    top: -1px;
+    left: 1px
+}
+
+#dsqjs .dsqjs-post-list .dsqjs-post-header .dsqjs-meta {
+    display: inline-block;
+    font-size: 12px;
+    color: #656c7a
+}
+
+#dsqjs .dsqjs-post-body {
+    font-size: 15px;
+    line-height: 1.5;
+    word-wrap: break-word;
+    overflow: hidden;
+    color: #2a2e2e
+}
+
+#dsqjs .dsqjs-post-body code {
+    padding: .2em .4em;
+    margin: 0;
+    font-size: 85%;
+    background: #f5f5f5;
+    color: inherit;
+    border-radius: 3px
+}
+
+#dsqjs .dsqjs-post-body pre {
+    padding: .5em;
+    overflow: auto;
+    font-size: 85%;
+    line-height: 1.45;
+    border-radius: 3px;
+    background: #f5f5f5;
+    margin: .5em 0
+}
+
+#dsqjs .dsqjs-post-body blockquote {
+    padding: 0 .8em;
+    margin: .5em 0;
+    color: #6a737d;
+    border-left: .25em solid #dfe2e5
+}
+
+#dsqjs .dsqjs-post-body p:last-child {
+    margin: 0
+}
+
+#dsqjs .dsqjs-post-list.dsqjs-children>li {
+    margin-left: 30px
+}
+
+#dsqjs .dsqjs-post-list.dsqjs-children .dsqjs-post-avatar img {
+    width: 38px;
+    height: 38px
+}
+
+#dsqjs .dsqjs-load-more {
+    font-size: 14px;
+    font-weight: 400;
+    display: block;
+    text-align: center;
+    padding: 11px 14px;
+    margin: 0 0 24px;
+    background: #687a86;
+    color: #fff;
+    cursor: pointer
+}
+
+#dsqjs .dsqjs-load-more:hover {
+    opacity: .8
+}
+
+#dsqjs footer {
+    text-align: right;
+    line-height: 1.5;
+    padding-top: 10px;
+    padding-right: 10px;
+    border-top: 2px solid #e7e9ee;
+    margin-top: 12px;
+    font-weight: 700;
+    font-size: 16px;
+    color: #555
+}
+
+#dsqjs .dsqjs-disqus-logo {
+    background-image: url(https://c.disquscdn.com/next/embed/assets/img/sprite.654110a9206fd22f08cca0798e34a65e.png);
+    background-repeat: no-repeat;
+    display: inline-block;
+    background-size: 86px 40.5px;
+    height: 16.5px;
+    width: 86px;
+}
+
+#dsqjs .dsqjs-order {
+    display: flex;
+    float: right;
+    align-items: center;
+    margin-top: 10px;
+    margin-bottom: 12px
+}
+
+#dsqjs .dsqjs-order-radio {
+    display: none
+}
+
+#dsqjs .dsqjs-order-radio:checked+.dsqjs-order-label {
+    color: #fff;
+    background-color: #888
+}
+
+#dsqjs .dsqjs-order-label {
+    display: block;
+    height: 20px;
+    line-height: 20px;
+    margin-right: 10px;
+    font-size: 12px;
+    border-radius: 2px;
+    padding: 0 5px;
+    background-color: #dcdcdc;
+    cursor: pointer
+}
+
+#dsqjs p.dsqjs-has-more {
+    margin-bottom: 24px;
+    margin-left: 48px;
+    font-size: 13px;
+    line-height: 15px
+}
+
+#dsqjs p.dsqjs-has-more a.dsqjs-has-more-btn {
+    color: #656c7a;
+    text-decoration: underline;
+    cursor: pointer
+}
+
+@media (min-width: 768px) {
+    #dsqjs .dsqjs-post-list.dsqjs-children>li {
+        margin-left:48px
+    }
+
+    #dsqjs .dsqjs-post-list .dsqjs-post-avatar {
+        margin-right: 12px
+    }
+
+    #dsqjs .dsqjs-post-list .dsqjs-post-item {
+        margin-bottom: 20px
+    }
+}
+
+@media (min-width: 1024px) {
+    #dsqjs .dsqjs-post-list.dsqjs-children>li {
+        margin-left:60px
+    }
+}
+
+:root[data-scheme="light"]  {
+    #dsqjs .dsqjs-disqus-logo {
+        background-position: 0 -7px;
+    }
+}
+
+:root[data-scheme="dark"]  {
+    #dsqjs {
+        --t-s: rgba(255,255,255,0.9);
+        --alt: #3e4b5e;
+        --link-hover: #47a2e0;
+        --hover-bg: #3e4b5e;
+        --tag: #3e4b5e;
+        --border: #435266;
+        --pre: #3c495b;
+        --c-bg: #2f3947;
+        --code: #c3c7cb;
+        --kbd: #4e5f77;
+        --hl: #abb2bf;
+        --hlc: #808895;
+        --hlk: #c678dd;
+        --hln: #e06c75;
+        --hll: #56b6c2;
+        --hls: #98c379;
+        --hlt: #e6c07b;
+        --hlv: #d19a66;
+        --bg: #181c27;
+        --main: #252d38;
+        --t: rgba(255,255,255,0.86);
+        --t-l: rgba(255,255,255,0.66);
+        --logo: #fff;
+        --link: #38a3fd;
+        --title: rgba(255,255,255,0.92);
+        --fab: #364151;
+        --shadow: none;
+    }
+
+    #disqus_thread {
+        color: var(--body-text-color)
+    }
+
+    #dsqjs #dsqjs-msg {
+        color: var(--t)
+    }
+
+    #dsqjs a {
+        color:var(--link)
+    }
+
+    #dsqjs a:focus,#dsqjs a:hover {
+        color: var(--link-hover)
+    }
+
+    #dsqjs .dsqjs-disqus-logo {
+        background-position: 0 -24px;
+    }
+
+    #dsqjs .dsqjs-nav,#dsqjs footer {
+        border-color: var(--hlc)
+    }
+
+    #dsqjs .dsqjs-load-more,#dsqjs .dsqjs-load-more:hover,#dsqjs .dsqjs-nav-tab,#dsqjs .dsqjs-no-comment,#dsqjs .dsqjs-post-content {
+        color: var(--t)
+    }
+
+    #dsqjs .dsqjs-order-label {
+        background-color: var(--hlc)
+    }
+
+    #dsqjs .dsqjs-order-radio:checked+.dsqjs-order-label {
+        background-color: var(--kbd)
+    }
+
+    #dsqjs .dsqjs-tab-active>span:after {
+        background-color: #2e9fff
+    }
+
+    #dsqjs .dsqjs-footer,#dsqjs .dsqjs-meta {
+        color: var(--t-l)
+    }
+
+    #dsqjs .dsqjs-post-body blockquote {
+        border-color: var(--border)
+    }
+}

exampleSite/config.yaml

@@ -53,6 +53,13 @@ params:
         enabled: true
         provider: disqus
 
+        disqusjs:
+            shortname:
+            apiUrl:
+            apiKey:
+            admin:
+            adminLabel:
+
         utterances:
             repo:
             issueTerm: pathname

layouts/partials/comments/provider/disqusjs.html

@@ -0,0 +1,61 @@
+{{- $pc := .Site.Config.Privacy.Disqus -}}
+{{- $disqusjs := .Site.Params.Comments.disqusjs -}}
+{{- if and (not $pc.Disable) (and $disqusjs.Shortname $disqusjs.ApiKey) -}}
+
+{{- $style := resources.Get "scss/partials/comments/disqusjs.scss" | resources.ToCSS | minify -}}
+<link rel="stylesheet" href="{{ $style.RelPermalink }}">
+
+<div class="disqus-container">
+    <div id="disqus_thread"></div>
+    <script type="application/javascript">
+        let disqusjs;
+        function loadDisqusJS() {
+            disqusjs = new DisqusJS({
+                shortname: {{ $disqusjs.Shortname }},
+                siteName: {{ .Site.Title }},
+                apikey: {{ $disqusjs.ApiKey }},
+                {{ with $disqusjs.ApiUrl }}api: {{ . }},{{ end }}
+                {{ with $disqusjs.Admin }}admin: {{ . }},{{ end }}
+                {{ with $disqusjs.AdminLabel }}adminLabel: {{ . }}{{ end }}
+            });
+        }
+
+        function lazyLoadDisqusJS() {
+            if (["localhost", "127.0.0.1"].indexOf(window.location.hostname) != -1) {
+                document.getElementById('disqus_thread').innerHTML = 'Disqus comments not available by default when the website is previewed locally.';
+                return;
+            }
+
+            let d = document.createElement('script');
+            d.src = 'https://cdn.jsdelivr.net/npm/disqusjs@1.3/dist/disqus.js';
+            d.async = false;
+            document.body.appendChild(d);
+            d.onload = () => {
+                loadDisqusJS();
+                window.addEventListener('onColorSchemeChange', (e) => {
+                    if (disqusjs) {
+                        loadDisqusJS();
+                    }
+                })
+            }
+        }
+
+        let runningOnBrowser = typeof window !== "undefined";
+        let isBot = runningOnBrowser && !("onscroll" in window) || typeof navigator !== "undefined" && /(gle|ing|ro|msn)bot|crawl|spider|yand|duckgo/i.test(navigator.userAgent);
+        let supportsIntersectionObserver = runningOnBrowser && "IntersectionObserver" in window;
+
+        if (!isBot && supportsIntersectionObserver) {
+            let disqus_observer = new IntersectionObserver(function(entries) {
+                if (entries[0].isIntersecting) {
+                    lazyLoadDisqusJS();
+                    disqus_observer.disconnect();
+                }
+            });
+            disqus_observer.observe(document.getElementById('disqus_thread'));
+        } else {
+            lazyLoadDisqusJS();
+        }
+    </script>
+    <noscript>Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript">comments powered by Disqus.</a></noscript>
+</div>
+{{- end -}}