feat: add reusable resizable split panes

2026-08-28 21:21:50 +09:00
parent a48791075e
commit d41d06d04b
4 changed files with 436 additions and 0 deletions
@@ -0,0 +1,41 @@
+import {
+  clampSplitPaneSize,
+  splitPaneSizeFromPointer,
+} from "/packages/ui/split-pane.js";
+
+test("분할 패널 폭이 설정 범위와 작업 영역 최소 폭을 지킨다", () => {
+  const metrics = {
+    containerSize: 1400,
+    separatorSize: 12,
+    minSize: 360,
+    maxSize: 720,
+    minMainSize: 560,
+  };
+  assertEqual(clampSplitPaneSize(620, metrics), 620, "requested width");
+  assertEqual(clampSplitPaneSize(900, metrics), 720, "hard maximum");
+  assertEqual(clampSplitPaneSize(200, metrics), 360, "configured minimum");
+  assertEqual(
+    clampSplitPaneSize(720, { ...metrics, containerSize: 981 }),
+    409,
+    "workspace-aware maximum",
+  );
+});
+
+test("분리선 pointer 좌표가 시작·끝 패널 폭으로 변환된다", () => {
+  const common = {
+    pointerX: 506,
+    containerLeft: 100,
+    containerRight: 1500,
+    separatorSize: 12,
+  };
+  assertEqual(
+    splitPaneSizeFromPointer({ ...common, panelSide: "start" }),
+    400,
+    "start panel width",
+  );
+  assertEqual(
+    splitPaneSizeFromPointer({ ...common, panelSide: "end" }),
+    988,
+    "end panel width",
+  );
+});