1 files changed, 40 insertions, 0 deletions
diff --git a/src/content/reducers/follow-controller.ts b/src/content/reducers/follow-controller.ts
new file mode 100644
index 0000000..6965704
--- /dev/null
+++ b/src/content/reducers/follow-controller.ts
@@ -0,0 +1,40 @@
+import * as actions from '../actions';
+
+export interface State {
+  enabled: boolean;
+  newTab: boolean;
+  background: boolean;
+  keys: string,
+}
+
+const defaultState: State = {
+  enabled: false,
+  newTab: false,
+  background: false,
+  keys: '',
+};
+
+export default function reducer(
+  state: State = defaultState,
+  action: actions.FollowAction,
+): State {
+  switch (action.type) {
+  case actions.FOLLOW_CONTROLLER_ENABLE:
+    return { ...state,
+      enabled: true,
+      newTab: action.newTab,
+      background: action.background,
+      keys: '', };
+  case actions.FOLLOW_CONTROLLER_DISABLE:
+    return { ...state,
+      enabled: false, };
+  case actions.FOLLOW_CONTROLLER_KEY_PRESS:
+    return { ...state,
+      keys: state.keys + action.key, };
+  case actions.FOLLOW_CONTROLLER_BACKSPACE:
+    return { ...state,
+      keys: state.keys.slice(0, -1), };
+  default:
+    return state;
+  }
+}