From 8828d175d9754e7afedf1dbb0b7bda2824608b0a Mon Sep 17 00:00:00 2001
From: Shin'ya Ueoka <ueokande@i-beam.org>
Date: Sat, 20 Mar 2021 11:51:08 +0900
Subject: Inject iframe on top window

---
 src/content/presenters/ConsoleFramePresenter.ts           |  6 ++++++
 src/content/usecases/AddonEnabledUseCase.ts               | 10 ++++++----
 test/content/operators/impls/MockConsoleFramePresenter.ts |  4 ++++
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/src/content/presenters/ConsoleFramePresenter.ts b/src/content/presenters/ConsoleFramePresenter.ts
index 9c4b3f1..0db58f0 100644
--- a/src/content/presenters/ConsoleFramePresenter.ts
+++ b/src/content/presenters/ConsoleFramePresenter.ts
@@ -6,6 +6,8 @@ export default interface ConsoleFramePresenter {
   blur(): void;
 
   resize(width: number, height: number): void;
+
+  isTopWindow(): boolean;
 }
 
 export class ConsoleFramePresenterImpl implements ConsoleFramePresenter {
@@ -47,4 +49,8 @@ export class ConsoleFramePresenterImpl implements ConsoleFramePresenter {
     }
     ele.style.height = `${height}px`;
   }
+
+  isTopWindow(): boolean {
+    return window.top === window;
+  }
 }
diff --git a/src/content/usecases/AddonEnabledUseCase.ts b/src/content/usecases/AddonEnabledUseCase.ts
index b45c47f..f49fde5 100644
--- a/src/content/usecases/AddonEnabledUseCase.ts
+++ b/src/content/usecases/AddonEnabledUseCase.ts
@@ -34,10 +34,12 @@ export default class AddonEnabledUseCase {
   private async setEnabled(on: boolean): Promise<void> {
     this.repository.set(on);
 
-    if (on) {
-      this.consoleFramePresenter.attach();
-    } else {
-      this.consoleFramePresenter.detach();
+    if (this.consoleFramePresenter.isTopWindow()) {
+      if (on) {
+        this.consoleFramePresenter.attach();
+      } else {
+        this.consoleFramePresenter.detach();
+      }
     }
     await this.indicator.setEnabled(on);
   }
diff --git a/test/content/operators/impls/MockConsoleFramePresenter.ts b/test/content/operators/impls/MockConsoleFramePresenter.ts
index f8ac70b..23bc27f 100644
--- a/test/content/operators/impls/MockConsoleFramePresenter.ts
+++ b/test/content/operators/impls/MockConsoleFramePresenter.ts
@@ -19,4 +19,8 @@ export default class MockConsoleFramePresenter
   resize(_width: number, _height: number): void {
     throw new Error("not implemented");
   }
+
+  isTopWindow(): boolean {
+    return true;
+  }
 }
-- 
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