1 files changed, 20 insertions, 0 deletions
diff --git a/packages/gitbook-core/src/reducers/components.js b/packages/gitbook-core/src/reducers/components.js
new file mode 100644
index 0000000..948a3ac
--- /dev/null
+++ b/packages/gitbook-core/src/reducers/components.js
@@ -0,0 +1,20 @@
+const { List } = require('immutable');
+const ACTION_TYPES = require('../actions/TYPES');
+
+function reduceComponents(state, action) {
+    state = state || List();
+    switch (action.type) {
+
+    case ACTION_TYPES.REGISTER_COMPONENT:
+        return state.push({
+            Component: action.Component,
+            descriptor: action.descriptor
+        });
+
+    default:
+        return state;
+
+    }
+}
+
+module.exports = reduceComponents;