add find action and reducer

src/content/reducers/find.js

@@ -0,0 +1,25 @@
+import actions from 'content/actions';
+
+const defaultState = {
+  enabled: false,
+  keyword: '',
+};
+
+export default function reducer(state = defaultState, action = {}) {
+  switch (action.type) {
+  case actions.FIND_SHOW:
+    return Object.assign({}, state, {
+      enabled: true,
+    });
+  case actions.FIND_HIDE:
+    return Object.assign({}, state, {
+      enabled: false,
+    });
+  case actions.FIND_SET_KEYWORD:
+    return Object.assign({}, state, {
+      keyword: action.keyword,
+    });
+  default:
+    return state;
+  }
+}

src/content/reducers/index.js

@@ -1,4 +1,5 @@
 import addonReducer from './addon';
+import findReducer from './find';
 import settingReducer from './setting';
 import inputReducer from './input';
 import followControllerReducer from './follow-controller';
@@ -6,6 +7,7 @@ import followControllerReducer from './follow-controller';
 // Make setting reducer instead of re-use
 const defaultState = {
   addon: addonReducer(undefined, {}),
+  find: findReducer(undefined, {}),
   setting: settingReducer(undefined, {}),
   input: inputReducer(undefined, {}),
   followController: followControllerReducer(undefined, {}),
@@ -14,6 +16,7 @@ const defaultState = {
 export default function reducer(state = defaultState, action = {}) {
   return Object.assign({}, state, {
     addon: addonReducer(state.addon, action),
+    find: findReducer(state.find, action),
     setting: settingReducer(state.setting, action),
     input: inputReducer(state.input, action),
     followController: followControllerReducer(state.followController, action),