From 1cad7823e203bd6f8b88004b9d01b193bd02150d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=B5=85=E5=BF=B5?= <email@sample.com>
Date: Wed, 23 Sep 2026 17:13:49 +0800
Subject: [PATCH] =?UTF-8?q?fix(embed):=20watchdog=20also=20clears=20hover?=
 =?UTF-8?q?=20+=20releases=20capture=20(third=20freeze=20layer=20=E2=80=94?=
 =?UTF-8?q?=20capture=20suspends=20pointerleave,=20lost=20release=20never?=
 =?UTF-8?q?=20frees=20it)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Co-Authored-By: Claude Code <noreply@anthropic.com>
---
 apps/viewer/src/pages/embed/EmbedStream.vue | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/apps/viewer/src/pages/embed/EmbedStream.vue b/apps/viewer/src/pages/embed/EmbedStream.vue
index acc9ef0..b51ffe9 100644
--- a/apps/viewer/src/pages/embed/EmbedStream.vue
+++ b/apps/viewer/src/pages/embed/EmbedStream.vue
@@ -235,8 +235,22 @@ function onPointerDown(event: PointerEvent): void {
   pointerWatchdog = setTimeout(() => {
     pointerWatchdog = null;
     pointerDownY = null;
+    // 统一清指针族原因（滚动卡死第三层修复 2026-09-23）：pointer capture 挂起
+    // 期间 pointerleave 不派发，而窗外释放使 up 永不送达 iframe → capture 不
+    // 释放 → hover 原因同样永久卡住。看门狗兜底：释放捕获 + 清
+    // pointer/manual/hover 三因（窗内正常路径由各事件自行清理，不受影响）。
+    try {
+      const el = viewportEl.value;
+      if (el !== null && el.hasPointerCapture(event.pointerId)) {
+        el.releasePointerCapture(event.pointerId);
+      }
+    } catch {
+      /* 指针已不在：忽略 */
+    }
+    hoverPointerIsMouse = false;
     setReason('pointer', false);
     setReason('manual', false);
+    setReason('hover', false);
     scheduleResume();
   }, POINTER_WATCHDOG_MS);
 }