new docs init

docs/document/common.js

@@ -0,0 +1,25 @@
+(function () {
+  window.runCode = function(hook) {
+    hook.ready(function() {
+      Array.from(document.querySelectorAll('.markdown-section a'))
+        .filter(function(item) {
+          return item.innerHTML === 'Run Code';
+        })
+        .forEach(function(item) {
+          item.addEventListener('click', function(event) {
+            event.preventDefault();
+            var codeElement = item.parentElement.nextElementSibling;
+            if (
+              codeElement.tagName === 'PRE' &&
+              codeElement.dataset.lang === 'js'
+            ) {
+              var libs = item.href.split('/lib=')[1] || '';
+              var code = encodeURIComponent(codeElement.innerText);
+              var url = 'https://artplayer.org/lab/?libs=' + libs + '&code=' + code;
+              window.open(url);
+            }
+          });
+        });
+    });
+  };  
+})();