feat(applause): add support for applause button

Fix Pelican-Elegant#532

documentation/pelicanconf.py

@@ -185,3 +185,4 @@
 }
 DISQUS_FILTER = True
 UTTERANCES_FILTER = True
+APPLAUSE_BUTTON = True

gulpfile.babel.js

@@ -75,6 +75,7 @@ const compileCSS = () => {
     cssnano()
   ];
   return src([
+    "static/applause-button/applause-button.css",
     "static/tipuesearch/tipuesearch.css",
     "static/css/*.css",
     "!static/css/elegant.prod.css"

static/applause-button/applause-button.css

@@ -0,0 +1,212 @@
+applause-button {
+  position: relative;
+  cursor: pointer;
+}
+
+applause-button .style-root {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+}
+
+applause-button .style-root:after {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  content: " ";
+  display: block;
+  border-radius: 50%;
+  border: 1px solid;
+}
+
+applause-button .style-root:hover:after:not(.clap-limit-exceeded) {
+  border-color: inherit;
+}
+
+applause-button.loading {
+  opacity: 0.5;
+}
+
+applause-button .shockwave {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  border-radius: 50%;
+}
+
+applause-button svg {
+  position: absolute;
+  width: 60%;
+  height: 60%;
+  margin-left: 20%;
+  margin-top: 20%;
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  opacity: 0.8;
+  stroke: none;
+  overflow: visible !important;
+}
+
+applause-button svg g.flat {
+  visibility: hidden;
+}
+
+applause-button svg g.outline {
+  visibility: visible;
+}
+
+applause-button.clapped svg g.flat {
+  visibility: visible;
+}
+
+applause-button.clapped svg g.outline {
+  visibility: hidden;
+}
+
+applause-button .count-container {
+  position: absolute;
+  top: -40%;
+  width: 100%;
+  color: gray;
+  user-select: none;
+}
+
+applause-button .count-container .count {
+  margin-left: 50%;
+  transform: translateX(-50%);
+  width: 1000px;
+  text-align: center;
+}
+
+applause-button g.sparkle circle {
+  opacity: 0;
+  stroke-width: 0;
+}
+
+applause-button g.sparkle g:nth-child(1) {
+  transform: rotate(0deg) translateX(10px);
+}
+
+applause-button g.sparkle g:nth-child(2) {
+  transform: rotate(72deg) translateX(10px);
+}
+
+applause-button g.sparkle g:nth-child(3) {
+  transform: rotate(144deg) translateX(10px);
+}
+
+applause-button g.sparkle g:nth-child(4) {
+  transform: rotate(216deg) translateX(10px);
+}
+
+applause-button g.sparkle g:nth-child(5) {
+  transform: rotate(288deg) translateX(10px);
+}
+
+applause-button:hover:not(.clapped) .shockwave {
+  animation-name: shockwave;
+  animation-duration: 1s;
+  animation-iteration-count: infinite;
+  animation-timing-function: ease-in;
+}
+
+applause-button.clap {
+  animation-name: pulse;
+  animation-duration: 0.5s;
+  animation-iteration-count: 1;
+}
+
+applause-button.clap .sparkle circle {
+  animation-name: explode;
+  animation-duration: 0.5s;
+  animation-iteration-count: 1;
+}
+
+applause-button.clap .count {
+  animation-name: hideThenShow;
+  animation-duration: 0.5s;
+  animation-iteration-count: 1;
+}
+
+@keyframes explode {
+  0% {
+    transform: translateX(10px);
+    opacity: 0;
+  }
+
+  20% {
+    opacity: 1;
+  }
+
+  50% {
+    opacity: 1;
+  }
+
+  100% {
+    opacity: 0;
+    transform: translateX(25px);
+  }
+}
+
+@keyframes shockwave {
+  0% {
+    transform: scale(1);
+    box-shadow: 0 0 2px;
+    opacity: 1;
+  }
+
+  100% {
+    transform: scale(1);
+    opacity: 0;
+    box-shadow: 0 0 50px, inset 0 0 10px;
+  }
+}
+
+@keyframes pulse {
+  0% {
+    transform: scale(1);
+  }
+
+  50% {
+    transform: scale(1.1);
+  }
+
+  100% {
+    transform: scale(1);
+  }
+}
+
+@keyframes hideThenShow {
+  0% {
+    opacity: 1;
+    transform: translateY(0);
+  }
+
+  20% {
+    opacity: 0;
+    transform: translateY(-10px);
+  }
+
+  50% {
+    transform: translateY(10px);
+  }
+
+  80% {
+    transform: translateY(10px);
+    opacity: 0;
+  }
+
+  100% {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}