From 2250e521e4bcfa1b162cd46091da1bead5abcac0 Mon Sep 17 00:00:00 2001
From: かっこかり <67428053+kakkokari-gtyih@users.noreply.github.com>
Date: Sat, 19 Oct 2024 18:02:09 +0900
Subject: refactor(frontend): getBgColorを共通化 (#14782)
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* refactor: getBgColor関数の切り出し + fix types (taiyme#291)

* move thing

* revert unnecesary changes

---------

Co-authored-by: taiy <53635909+taiyme@users.noreply.github.com>
---
 packages/frontend/src/scripts/get-bg-color.ts | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 packages/frontend/src/scripts/get-bg-color.ts

(limited to 'packages/frontend/src/scripts')

diff --git a/packages/frontend/src/scripts/get-bg-color.ts b/packages/frontend/src/scripts/get-bg-color.ts
new file mode 100644
index 0000000000..ccf60b454f
--- /dev/null
+++ b/packages/frontend/src/scripts/get-bg-color.ts
@@ -0,0 +1,18 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import tinycolor from 'tinycolor2';
+
+export const getBgColor = (elem?: Element | null | undefined): string | null => {
+	if (elem == null) return null;
+
+	const { backgroundColor: bg } = window.getComputedStyle(elem);
+
+	if (bg && tinycolor(bg).getAlpha() !== 0) {
+		return bg;
+	}
+
+	return getBgColor(elem.parentElement);
+};
-- 
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