Fix split-pane right-edge resize clipping (#1261)

* fix(app): clamp split pane resize Prevent right-edge drags from overflowing the Electron viewport. * fix(app): isolate resize pointer state Keep concurrent resize drags from clobbering each other.
2026-06-01 15:32:26 +08:00
parent 539d2969f1
commit ae5dfc0b3c
6 changed files with 181 additions and 24 deletions
@@ -0,0 +1,36 @@
+import { MIN_SPLIT_SIZE } from "@/stores/workspace-layout-constants";
+
+interface ComputeResizeHandleSizesInput {
+  sizes: number[];
+  index: number;
+  deltaRatio: number;
+  minSize?: number;
+}
+
+export function computeResizeHandleSizes({
+  sizes,
+  index,
+  deltaRatio,
+  minSize = MIN_SPLIT_SIZE,
+}: ComputeResizeHandleSizesInput): number[] {
+  const nextSizes = sizes.slice();
+  const leftSize = sizes[index];
+  const rightSize = sizes[index + 1];
+  if (leftSize === undefined || rightSize === undefined) {
+    return nextSizes;
+  }
+
+  const pairSize = leftSize + rightSize;
+  if (pairSize <= 0) {
+    return nextSizes;
+  }
+
+  const adjacentMinSize = Math.min(minSize, pairSize / 2);
+  const nextLeftSize = Math.min(
+    pairSize - adjacentMinSize,
+    Math.max(adjacentMinSize, leftSize + deltaRatio),
+  );
+  nextSizes[index] = nextLeftSize;
+  nextSizes[index + 1] = pairSize - nextLeftSize;
+  return nextSizes;
+}