1 files changed, 60 insertions, 0 deletions
diff --git a/devtools/client/accessibility/reducers/details.js b/devtools/client/accessibility/reducers/details.js
new file mode 100644
index 0000000000..25a1c42ed2
--- /dev/null
+++ b/devtools/client/accessibility/reducers/details.js
@@ -0,0 +1,60 @@
+/* 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 {
+  UPDATE_DETAILS,
+  RESET,
+} = require("resource://devtools/client/accessibility/constants.js");
+
+/**
+ * Initial state definition
+ */
+function getInitialState() {
+  return {};
+}
+
+/**
+ * Maintain details of a current relevant accessible.
+ */
+function details(state = getInitialState(), action) {
+  switch (action.type) {
+    case UPDATE_DETAILS:
+      return onUpdateDetails(state, action);
+    case RESET:
+      return getInitialState();
+    default:
+      return state;
+  }
+}
+
+/**
+ * Handle details update for an accessible object
+ * @param {Object} state  Current accessible object details.
+ * @param {Object} action Redux action object
+ * @return {Object}  updated state
+ */
+function onUpdateDetails(state, action) {
+  const { accessible, response, error } = action;
+  if (error) {
+    if (!accessible.isDestroyed()) {
+      console.warn(
+        `Error fetching accessible details: `,
+        accessible.actorID,
+        error
+      );
+    }
+
+    return getInitialState();
+  }
+
+  const [DOMNode, relationObjects, audit] = response;
+  const relations = {};
+  relationObjects.forEach(({ type, targets }) => {
+    relations[type] = targets.length === 1 ? targets[0] : targets;
+  });
+  return { accessible, DOMNode, relations, audit };
+}
+
+exports.details = details;