1 files changed, 25 insertions, 0 deletions
diff --git a/src/background/operators/impls/NavigateParentOperator.ts b/src/background/operators/impls/NavigateParentOperator.ts
new file mode 100644
index 0000000..652cfb8
--- /dev/null
+++ b/src/background/operators/impls/NavigateParentOperator.ts
@@ -0,0 +1,25 @@
+import Operator from "../Operator";
+import TabPresenter from "../../presenters/TabPresenter";
+
+export default class NavigateParentOperator implements Operator {
+  constructor(private readonly tabPresenter: TabPresenter) {}
+
+  async run(): Promise<void> {
+    const tab = await this.tabPresenter.getCurrent();
+    const url = new URL(tab.url!);
+    if (url.hash.length > 0) {
+      url.hash = "";
+    } else if (url.search.length > 0) {
+      url.search = "";
+    } else {
+      const basenamePattern = /\/[^/]+$/;
+      const lastDirPattern = /\/[^/]+\/$/;
+      if (basenamePattern.test(url.pathname)) {
+        url.pathname = url.pathname.replace(basenamePattern, "/");
+      } else if (lastDirPattern.test(url.pathname)) {
+        url.pathname = url.pathname.replace(lastDirPattern, "/");
+      }
+    }
+    await this.tabPresenter.open(url.href);
+  }
+}