Implicitlt complete interceptions

src/core/interception.ts

@@ -1,4 +1,4 @@
-export type Intercept = (callback: (value: any) => void) => void
+export type Intercept = (callback: () => Promise<any>) => void
 
 export class Interception {
   started = false
@@ -8,9 +8,10 @@ export class Interception {
 
   constructor () {
     this.completed = new Promise((resolve) => this.resolve = resolve)
-    this.intercept = (callback) => {
+    this.intercept = async (callback) => {
       this.start()
-      callback(this.complete.bind(this))
+      const value = await callback()
+      this.complete(value)
     }
   }
 

src/tests/fixtures/pausable_rendering.html

@@ -7,12 +7,14 @@
     <script src="/src/tests/fixtures/test.js"></script>
     <script type="module">
       addEventListener('turbo:before-render', function(event) {
-        event.detail.intercept(function (complete) {
-          if (confirm('Continue rendering?')) {
-            complete()
-          } else {
-            alert('Rendering aborted')
-          }
+        event.detail.intercept(function () {
+          return new Promise(function (resolve) {
+            if (confirm('Continue rendering?')) {
+              resolve()
+            } else {
+              alert('Rendering aborted')
+            }
+          })
         })
       })
     </script>