Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/devtools/client/debugger/src/actions/utils/middleware/thunk.js b/devtools/client/debugger/src/actions/utils/middleware/thunk.js
new file mode 100644
index 0000000000..fba17d516c
--- /dev/null
+++ b/devtools/client/debugger/src/actions/utils/middleware/thunk.js
@@ -0,0 +1,22 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+/**
+ * A middleware that allows thunks (functions) to be dispatched. If
+ * it's a thunk, it is called with an argument that contains
+ * `dispatch`, `getState`, and any additional args passed in via the
+ * middleware constructure. This allows the action to create multiple
+ * actions (most likely asynchronously).
+ */
+export function thunk(makeArgs) {
+  return ({ dispatch, getState }) => {
+    const args = { dispatch, getState };
+
+    return next => action => {
+      return typeof action === "function"
+        ? action(makeArgs ? makeArgs(args, getState()) : args)
+        : next(action);
+    };
+  };
+}