feat: copy code to clipboard (#9692) (#10255)

* feat: copy code to clipboard [#9692]

* feat: remove console

Co-authored-by: kongjing@dian.so <apple@AppledeMacBook-Pro-2.local>

packages/vant-cli/site/desktop/components/Content.vue

@@ -8,6 +8,33 @@
 </template>
 
 <script>
+// from https://30secondsofcode.org
+function copyToClipboard(str) {
+  const el = document.createElement('textarea');
+  el.value = str;
+  el.setAttribute('readonly', '');
+  el.style.position = 'absolute';
+  el.style.left = '-9999px';
+  document.body.appendChild(el);
+
+  const selection = document.getSelection();
+
+  if (!selection) {
+    return;
+  }
+
+  const selected = selection.rangeCount > 0 ? selection.getRangeAt(0) : false;
+
+  el.select();
+  document.execCommand('copy');
+  document.body.removeChild(el);
+
+  if (selected) {
+    selection.removeAllRanges();
+    selection.addRange(selected);
+  }
+}
+
 export default {
   name: 'VanDocContent',
 
@@ -21,6 +48,20 @@ export default {
     },
   },
 
+  watch: {
+    $route(to, from) {
+      if (from.path !== to.path) {
+        setTimeout(() => {
+          this.copyAction();
+        });
+      }
+    },
+  },
+
+  mounted() {
+    this.copyAction();
+  },
+
   methods: {
     onClick({ target }) {
       if (['H2', 'H3', 'H4', 'H5'].includes(target.tagName)) {
@@ -36,6 +77,27 @@ export default {
         });
       }
     },
+
+    copyAction() {
+      const codeBoxs = document.querySelectorAll('.van-doc-card pre code');
+
+      if (!codeBoxs || !codeBoxs.length) return;
+      for (let i = 0; i < codeBoxs.length; i++) {
+        const item = codeBoxs[i];
+        let timer = null;
+
+        item.addEventListener('click', () => {
+          if (timer) return;
+          const content = item.innerText;
+          copyToClipboard(content);
+          item.classList.add('code-copy-success');
+          timer = setTimeout(() => {
+            item.classList.remove('code-copy-success');
+            timer = null;
+          }, 1400);
+        });
+      }
+    },
   },
 };
 </script>
@@ -50,6 +112,52 @@ export default {
   border-radius: @van-doc-border-radius;
   box-shadow: 0 8px 12px #ebedf0;
 
+  > pre code {
+    position: relative;
+    padding-right: 30px;
+    pointer-events: none;
+    overflow: initial;
+  }
+
+  > pre:hover {
+    code::before {
+      position: absolute;
+      z-index: 9;
+      right: 14px;
+      top: 11px;
+      width: 20px;
+      height: 20px;
+      background-position: center;
+      background-size: contain;
+      background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAMgAAADICAYAAACtWK6eAAAAAXNSR0IArs4c6QAADGtJREFUeF7tnW2IXFcZx5+zl6wktssibErjC4J+MvhGUwWrkChUq00VNasfLPiCG1SWPXejQfBDJuAXNbv3mSwGs8W3ighdxb5pUZDuh7aCNiLV5lsRLE1pFiTGNNAxM0fuusF1szv3nDPnnnPPPf+B+TTPefs9z2+fmZvJXEF4gAAI7EhAgA0IgMDOBCAIqgMEhhCAICgPEIAgqAEQsCOADmLHDaMSIQBBEkk0jmlHAILYccOoRAhAkEQSjWPaEYAgdtwwKhECECSRROOYdgQgiB03jEqEAARJJNE4ph0BCGLHDaMSIQBBEkk0jmlHAILYccOoRAhAkEQSjWPaEYAgdtwwKhECECSRROOYdgQgiB03jEqEAATRTHSn0xm/fPnyLUqp8nmT5jCEWRDIsuxir9dbW1paWrMY7nQIBBmCM8/z1yil7iKiTxHRYafkMZkugWUiepCZH9Md4DIOgmxDU0p5KxEdJaIvEtE+l8AxlzWBc0S0zMylMN4eEGQLaimlJKKvQQxvNWi6UCnKN5n5QdOBNvEQZBO1PM9/rpT6hA1IjPFOIGdmrntVCLJBWEp5lohm6gaO+d0RGBsbO7y4uPiouxlvnAmCEJGU8vNE9P06QWPueggIId5dFMUf6pmdKHlBpJR3ENETdQHGvLUTOMfMB+paBYJI+RAR3VMXYMzrhcDRuq5uJS0I3lp5KV4fi9TWRVIXBN3DR/l6WEMpNd3tdldcL5W6IFeI6NWuoWK+IARWmHna9crJCiKlPEhEj7sGivnCEWBm5/XsfMJweMxWnpubOyKEeMBs1Hr0SSJatRiHIfoEukT0Nv3w/0b2+/29rr/gmKwgeZ5/WSn1XcMkfI6Zf2Q4BuEWBPI8f1Ip9R6ToVmW7V9YWDhvMqYqNllBpJQdIjpRBWjz63W0cJP1U4q1fAt8iJmddncIYlB1EMQA1oihEGREgKMORwcZlWC94yFIvXwrZ4cglYiCBkCQoPjXv6CIzyCBczBseQgSODkQJHACKpaHIIHzA0ECJwCCND4BeIvV4BShgwRODjpI4ASggzQ+AeggDU4ROkjg5KCDBE4AOkjjE4AO0uAUoYMETg46SOAEoIM0PgHoIA1OETpI4OSggwROADpI4xOADtLgFKGDBE4OOkjgBKCDND4B6CANThE6SODkoIMETgA6SOMTgA7S4BShgwRODjpI4ASggzQ+AeggDU4ROkjg5KCDBE4AOkjjE4AO0uAUoYMETg46SOAEoIM0PgHoIA1OETpI4OSggwROADqIXgLKvxRKqamxsbEppdRevVE3Rgkhnh8MBs/s2rXr/KlTp16umgeCVBEK+3rSHWTjzk4fIqLyebPjVFwgovuYuXwLteMDgjim7ni6JAXZuGHmcU/3BBx6QxUI4riiHU+XnCA2BTkqcyHEB4ui+O1289jsBz9ePWpG9McnJYiUsrzZ+0f08TiL/D0zb3uPCQjijHEtEyUjiE0hOiTem5ycvLnT6fS2zmmzL3QQh5nBVaz1H4i+l4ju94d126tbtxdF8TQECZkF87Vb30GklLcSUVmY+8zxuBshhHhdURQvQBB3TH3MlIIgxv9S7Rq8Uuq5brf7ZnxId022/vlaLcjs7OxUlmV/Dt09iGiZmY9CkPoL2vUKrRbE8g6yrhnTsA/V+JDuHLfTCVstiJTycSI66JSY2WTPZlk2PeyWwBDEDKjv6NYK0ul0xi9duvSKb6BEVH7F5BwR/anqaybl3iBIgAwZLNlaQebn518/GAz+bsBiPVQpNd3tdldMx9nGQxBbcn7GtVaQPM8PKKX+aIjxpM5ffcM5h4ZDEJc03c/VWkGacrCqlEGQKkJhX29KHQnXGJpysKpzQZAqQmFfb0odQRCDOsB3sQxgjRgKQf4f4CFmXh2RqdFwdBAjXN6DIQgE8V50MS0IQSBITPXqfa8QBIJ4L7qYFoQgECSmevW+VwgCQbwXXUwLQhAIElO9et8rBIEg3osupgUhCASJqV697xWCQBDvRRfTghAEgsRUr973CkEgiPeii2lBCAJBYqpX73uFIBDEe9HFtCAEgSAx1av3vUIQCOK96GJaEIJAkJjq1fteIQgE8V50MS0IQSBITPXqfa8QBIJ4L7qYFoQgECSmevW+VwgCQbwXXUwLQhAIElO9et8rBIEg3osupgUhCASJqV697xWCQBDvRRfTghAEgsRUr973CkEgiPeii2lBCAJBYqpX73uFIBDEe9HFtCAEgSAx1av3vUIQCOK96GJaEIJAkJjq1fteIQgE8V50MS0IQSBITPXqfa8QBIJ4L7qYFoQgECSmevW+VwgCQbwXXUwLQhAIElO9et8rBIEg3osupgUhCASJqV697xWCQBDvRRfTghAEgsRUr973CkHCC/JVIvqOSeazLNu/sLBw3mQMYu0ISCk7RHTCZLQQ4vaiKJ42GVMVK6oCTF9vivlV+5ZS3ktE91fFbXn9JBGtMvOq4TiEGxCQUn6WiH5oMGQ9dGxs7A2Li4vPm44bFp+sIHme36mU+o1LmJgrLIHJyclXdTqdnstdJCvI7OzsRJZl/3QJE3MFJfAIM9/jegfJClKClFKWHeRO11AxXxACn2Hmn7peOXVBjD8Iuk4A5nNC4IIQ4q1FUfzDyWybJklakJmZmT27d+9+QgjxTtdgMZ9XAieZufxj5/yRtCAlzTzPP62U+plzspjQF4ELRHSAmV+sY8HkBdn4LFJeUiwvLeIRH4GcmbmubUOQDbJSyr8R0RvrAo153RMQQvyiKIpPup/5fzNCkE10pZTlv8LeVidwzO2MwDIzH3U22w4TQZAtYKSU3yKi43WDx/wjEfgCM/9gpBk0B0OQbUCVH9wHg8FxXN3SrCJ/YQ8T0beZ+UlfS0KQHUiXl4D37NlTdpL3E9H7fCUE69xA4GUi+h0RPeSra2zeAQTRqEgp5aQQ4l1KqVuIqHzepDEMIZYEhBAXB4PBmhBiLfQXQyGIZRIxLA0CECSNPOOUlgQgiCU4DEuDAARJI884pSUBCGIJDsPSIABB0shz5SnzPH9teZXu6tWrf1leXv535YBEAiBIIone6ZhSyrNKqQ8IId60EfOKUuqcEOLHzLycOB6CIIlWwLFjx97S7/efrTj+Y8z84UQRrR8bgiSafSnlX4lof9XxhRAfL4ril1VxbX0dgrQ1s0POZfibU8/1er13nDlz5kqCqNBBUky6lLL80t9h3bMPBoM7Tp8+/ZRufJvi0EHalE3Ns0gpXyCifZrhJIT4UlEU39ONb1McBGlTNjXPIqVUmqHXw2r7UQTDfXgPhyDekYdfEILo5wCC6LNqTSQE0U8lBNFn1ZpICKKfSgiiz6o1kRBEP5UQRJ9VayIhiH4qIYg+q9ZEQhD9VEIQfVatiYQg+qmEIPqsWhMJQfRTCUH0WbUmEoLopxKC6LNqTSQE0U8lBNFn1ZpICKKfSgiiz6o1kRBEP5UQRJ9VayIhiH4qIYg+q9ZEQhD9VDoXRPP/Om/d4TPM/Hb9bSPSlsDc3NwRIcQDJuOFEF8piuKMyZi2xDoXZHZ2dirLsoumgIQQTymlvmE6DvFGBA4S0QmjEUSklJrudrsrpuPaEO9ckBKKRQtvA8s2n+FQ6F9ZDwW3LkHOEtFMqENhXacE/sXME05njGiyugS5i4h+HREHbHVnAivMPJ0qoFoE2XibhRtitqOqvN0PsIm46hSkfItVvtXCI14CDzPzR+Pd/ug7r00QdJHRk9OAGd7r84aZDTjvDVuoW5CPEVGyP1vZxIQb7CnZn/rZzKhWQTa6iCSiwiAxCA1P4FfMfHf4bYTfQe2ClEecn5+/ezAYPBL+uNiBBgF0jk2QvAhSrpfneXkb5fLrCrdpJAkh/glcIKKvM/NP/C/d3BW9CXIdgZSyvLpVPiFKM+qiFOO+8oojM7/YjC01ZxfeBbl+9I0vzR0hovKJh38Cq0KIlWvXrq0sLS2t+V8+jhWDCbIZT/kFx/Hx8al+v783Dmxx7lIIcUUI8dLExMRLnU6nF+cp/O66EYL4PTJWAwF9AhBEnxUiEyQAQRJMOo6sTwCC6LNCZIIEIEiCSceR9QlAEH1WiEyQAARJMOk4sj4BCKLPCpEJEoAgCSYdR9YnAEH0WSEyQQIQJMGk48j6BCCIPitEJkgAgiSYdBxZnwAE0WeFyAQJQJAEk44j6xOAIPqsEJkgAQiSYNJxZH0CEESfFSITJABBEkw6jqxPAILos0JkggT+AwDMEDJE88DWAAAAAElFTkSuQmCC);
+      cursor: pointer;
+      content: '';
+      display: block;
+      pointer-events: auto;
+    }
+  }
+
+  > pre .code-copy-success::after {
+    content: 'Copied!';
+    display: block;
+    position: absolute;
+    z-index: 9;
+    right: -4px;
+    top: 0;
+    animation: CODE_COPY_ANITION 0.8s;
+    animation-fill-mode: forwards;
+  }
+
+  @keyframes CODE_COPY_ANITION {
+    0% {
+      top: 0;
+    }
+
+    100% {
+      top: -20px;
+    }
+  }
+
   > p a,
   > ul a,
   > table a,