Keymaps as a clean architecture [WIP]

src/content/client/FindMasterClient.ts

@@ -0,0 +1,23 @@
+import * as messages from '../../shared/messages';
+
+export default interface FindMasterClient {
+  findNext(): void;
+
+  findPrev(): void;
+
+  // eslint-disable-next-line semi
+}
+
+export class FindMasterClientImpl implements FindMasterClient {
+  findNext(): void {
+    window.top.postMessage(JSON.stringify({
+      type: messages.FIND_NEXT,
+    }), '*');
+  }
+
+  findPrev(): void {
+    window.top.postMessage(JSON.stringify({
+      type: messages.FIND_PREV,
+    }), '*');
+  }
+}