3 files changed, 15 insertions, 0 deletions
diff --git a/src/content/Application.ts b/src/content/Application.ts
index cfa01fd..fbfeb6d 100644
--- a/src/content/Application.ts
+++ b/src/content/Application.ts
@@ -40,6 +40,7 @@ export default class Application {
 
   run() {
     this.routeCommonComponents();
+    this.routeFocusEvents();
     if (window.self === window.top) {
       this.routeMasterComponents();
     }
@@ -118,4 +119,10 @@ export default class Application {
 
     this.settingController.initSettings();
   }
+
+  private routeFocusEvents() {
+    window.addEventListener('blur', () => {
+      this.keymapController.onBlurWindow();
+    });
+  }
 }
diff --git a/src/content/controllers/KeymapController.ts b/src/content/controllers/KeymapController.ts
index f9c2545..639b4a1 100644
--- a/src/content/controllers/KeymapController.ts
+++ b/src/content/controllers/KeymapController.ts
@@ -99,4 +99,8 @@ export default class KeymapController {
     }
     return true;
   }
+
+  onBlurWindow() {
+    this.keymapUseCase.cancel();
+  }
 }
diff --git a/src/content/usecases/KeymapUseCase.ts b/src/content/usecases/KeymapUseCase.ts
index 7aa7e92..e02bc48 100644
--- a/src/content/usecases/KeymapUseCase.ts
+++ b/src/content/usecases/KeymapUseCase.ts
@@ -70,6 +70,10 @@ export default class KeymapUseCase {
     return null;
   }
 
+  cancel() {
+    this.repository.clear();
+  }
+
   private keymapEntityMap(): [KeySequence, operations.Operation][] {
     const keymaps = this.settingRepository.get().keymaps.combine(reservedKeymaps);
     let entries = keymaps.entries().map(