feat(Tabbar): add before-change prop (#7081)

src/utils/interceptor.ts

@@ -0,0 +1,27 @@
+import { isPromise, noop } from '.';
+
+export function callInterceptor(options: {
+  interceptor?: (...args: any[]) => Promise<boolean> | boolean;
+  done: () => void;
+  args: any[];
+}) {
+  const { interceptor, args, done } = options;
+
+  if (interceptor) {
+    const returnVal = interceptor(...args);
+
+    if (isPromise(returnVal)) {
+      returnVal
+        .then((value) => {
+          if (value) {
+            done();
+          }
+        })
+        .catch(noop);
+    } else if (returnVal) {
+      done();
+    }
+  } else {
+    done();
+  }
+}