1 files changed, 12 insertions, 0 deletions
diff --git a/src/background/presenters/IndicatorPresenter.ts b/src/background/presenters/IndicatorPresenter.ts
new file mode 100644
index 0000000..d9a615a
--- /dev/null
+++ b/src/background/presenters/IndicatorPresenter.ts
@@ -0,0 +1,12 @@
+export default class IndicatorPresenter {
+  indicate(enabled: boolean): Promise<void> {
+    let path = enabled
+      ? 'resources/enabled_32x32.png'
+      : 'resources/disabled_32x32.png';
+    return browser.browserAction.setIcon({ path });
+  }
+
+  onClick(listener: (arg: browser.tabs.Tab) => void): void {
+    browser.browserAction.onClicked.addListener(listener);
+  }
+}