1 files changed, 31 insertions, 0 deletions
diff --git a/devtools/client/debugger/content/reducers/async-requests.js b/devtools/client/debugger/content/reducers/async-requests.js
new file mode 100644
index 000000000..206e1cf60
--- /dev/null
+++ b/devtools/client/debugger/content/reducers/async-requests.js
@@ -0,0 +1,31 @@
+/* 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/. */
+"use strict";
+
+const constants = require("../constants");
+const initialState = [];
+
+function update(state = initialState, action, emitChange) {
+  const { seqId } = action;
+
+  if (action.type === constants.UNLOAD) {
+    return initialState;
+  }
+  else if (seqId) {
+    let newState;
+    if (action.status === "start") {
+      newState = [...state, seqId];
+    }
+    else if (action.status === "error" || action.status === "done") {
+      newState = state.filter(id => id !== seqId);
+    }
+
+    emitChange("open-requests", newState);
+    return newState;
+  }
+
+  return state;
+}
+
+module.exports = update;