7 files changed, 77 insertions, 2 deletions
diff --git a/src/background/controllers/addon-enabled.js b/src/background/controllers/addon-enabled.js
new file mode 100644
index 0000000..0f5d801
--- /dev/null
+++ b/src/background/controllers/addon-enabled.js
@@ -0,0 +1,11 @@
+import AddonEnabledInteractor from '../usecases/addon-enabled';
+
+export default class AddonEnabledController {
+  constructor() {
+    this.addonEnabledInteractor = new AddonEnabledInteractor();
+  }
+
+  indicate(enabled) {
+    this.addonEnabledInteractor.indicate(enabled);
+  }
+}
diff --git a/src/background/index.js b/src/background/index.js
index e753c48..70d514f 100644
--- a/src/background/index.js
+++ b/src/background/index.js
@@ -1,7 +1,6 @@
 import BackgroundComponent from 'background/components/background';
 import OperationComponent from 'background/components/operation';
 import TabComponent from 'background/components/tab';
-import IndicatorComponent from 'background/components/indicator';
 import reducers from 'background/reducers';
 import { createStore, applyMiddleware } from 'redux';
 import promise from 'redux-promise';
@@ -19,7 +18,6 @@ const store = createStore(
 const backgroundComponent = new BackgroundComponent(store);
 const operationComponent = new OperationComponent(store);
 const tabComponent = new TabComponent(store);
-const indicatorComponent = new IndicatorComponent(store);
 /* eslint-enable no-unused-vars */
 
 new SettingController().reload();
diff --git a/src/background/infrastructures/content-message-client.js b/src/background/infrastructures/content-message-client.js
index b3b37b4..d659560 100644
--- a/src/background/infrastructures/content-message-client.js
+++ b/src/background/infrastructures/content-message-client.js
@@ -9,4 +9,17 @@ export default class ContentMessageClient {
       });
     }
   }
+
+  async getAddonEnabled(tabId) {
+    let { enabled } = await browser.tabs.sendMessage(tabId, {
+      type: messages.ADDON_ENABLED_QUERY,
+    });
+    return enabled;
+  }
+
+  toggleAddonEnabled(tabId) {
+    return browser.tabs.sendMessage(tabId, {
+      type: messages.ADDON_TOGGLE_ENABLED,
+    });
+  }
 }
diff --git a/src/background/infrastructures/content-message-listener.js b/src/background/infrastructures/content-message-listener.js
index 00dba51..8a361c1 100644
--- a/src/background/infrastructures/content-message-listener.js
+++ b/src/background/infrastructures/content-message-listener.js
@@ -2,12 +2,14 @@ import messages from '../../shared/messages';
 import CompletionsController from '../controllers/completions';
 import SettingController from '../controllers/setting';
 import FindController from '../controllers/find';
+import AddonEnabledController from '../controllers/addon-enabled';
 
 export default class ContentMessageListener {
   constructor() {
     this.settingController = new SettingController();
     this.completionsController = new CompletionsController();
     this.findController = new FindController();
+    this.addonEnabledController = new AddonEnabledController();
   }
 
   run() {
@@ -35,6 +37,8 @@ export default class ContentMessageListener {
       return this.onFindGetKeyword();
     case messages.FIND_SET_KEYWORD:
       return this.onFindSetKeyword(message.keyword);
+    case messages.ADDON_ENABLED_RESPONSE:
+      return this.onAddonEnabledResponse(message.enabled);
     }
   }
 
@@ -58,4 +62,8 @@ export default class ContentMessageListener {
   onFindSetKeyword(keyword) {
     return this.findController.setKeyword(keyword);
   }
+
+  onAddonEnabledResponse(enabled) {
+    return this.addonEnabledController.indicate(enabled);
+  }
 }
diff --git a/src/background/presenters/indicator.js b/src/background/presenters/indicator.js
new file mode 100644
index 0000000..5737519
--- /dev/null
+++ b/src/background/presenters/indicator.js
@@ -0,0 +1,12 @@
+export default class IndicatorPresenter {
+  indicate(enabled) {
+    let path = enabled
+      ? 'resources/enabled_32x32.png'
+      : 'resources/disabled_32x32.png';
+    return browser.browserAction.setIcon({ path });
+  }
+
+  onClick(listener) {
+    browser.browserAction.onClicked.addListener(listener);
+  }
+}
diff --git a/src/background/presenters/tab.js b/src/background/presenters/tab.js
index 8f60535..6120f6e 100644
--- a/src/background/presenters/tab.js
+++ b/src/background/presenters/tab.js
@@ -2,4 +2,8 @@ export default class TabPresenter {
   create(url) {
     browser.tabs.create({ url, });
   }
+
+  onSelected(listener) {
+    browser.tabs.onActivated.addListener(listener);
+  }
 }
diff --git a/src/background/usecases/addon-enabled.js b/src/background/usecases/addon-enabled.js
new file mode 100644
index 0000000..37eb1c2
--- /dev/null
+++ b/src/background/usecases/addon-enabled.js
@@ -0,0 +1,29 @@
+import IndicatorPresenter from '../presenters/indicator';
+import TabPresenter from '../presenters/tab';
+import ContentMessageClient from '../infrastructures/content-message-client';
+
+export default class AddonEnabledInteractor {
+  constructor() {
+    this.indicatorPresentor = new IndicatorPresenter();
+
+    this.indicatorPresentor.onClick(tab => this.onIndicatorClick(tab.id));
+
+    this.tabPresenter = new TabPresenter();
+    this.tabPresenter.onSelected(info => this.onTabSelected(info.tabId));
+
+    this.contentMessageClient = new ContentMessageClient();
+  }
+
+  indicate(enabled) {
+    this.indicatorPresentor.indicate(enabled);
+  }
+
+  onIndicatorClick(tabId) {
+    return this.contentMessageClient.toggleAddonEnabled(tabId);
+  }
+
+  async onTabSelected(tabId) {
+    let enabled = await this.contentMessageClient.getAddonEnabled(tabId);
+    return this.indicatorPresentor.indicate(enabled);
+  }
+}