🐛 fix(vscode): 代码阅读预览跳到定义后页面还在长高（注释里的 mermaid 画成图、中文名到了）不再把视口带跑：页面滚动统一交给滚动所有者，跟住跳到的目标、用户自己滚了改钉视口顶部那块，关掉浏览器自带的滚动锚定

vscode/webview-ui/src/codeReader/occurrences.test.ts

@@ -369,54 +369,49 @@ describe('occurrences：用键盘在各处出现之间跳', () => {
     scroll.press({ x: 0, y: 40 }, 1000)
     scroll.take(1012)
     // 刚回到按键那一刻、还没跳完：守住按键那一刻的位置
-    expect(scroll.scrolled(1020, () => ({ x: 0, y: 300 }))).toEqual({ x: 0, y: 40 })
+    expect(scroll.scrolled(1020, () => ({ x: 0, y: 300 }), false)).toEqual({ x: 0, y: 40 })
     scroll.hold({ x: 0, y: 900 })
-    expect(scroll.scrolled(1030, () => ({ x: 0, y: 900 }))).toBeUndefined()
-    expect(scroll.scrolled(1040, () => ({ x: 0, y: 1200 }))).toEqual({ x: 0, y: 900 })
-    expect(scroll.scrolled(1000 + KEY_SCROLL_MS + 1, () => ({ x: 0, y: 1200 }))).toBeUndefined()
-    expect(scroll.scrolled(1000 + KEY_SCROLL_MS + 2, () => ({ x: 0, y: 1300 }))).toBeUndefined()
+    expect(scroll.scrolled(1030, () => ({ x: 0, y: 900 }), false)).toBeUndefined()
+    expect(scroll.scrolled(1040, () => ({ x: 0, y: 1200 }), false)).toEqual({ x: 0, y: 900 })
+    expect(scroll.scrolled(1000 + KEY_SCROLL_MS + 1, () => ({ x: 0, y: 1200 }), false)).toBeUndefined()
+    expect(scroll.scrolled(1000 + KEY_SCROLL_MS + 2, () => ({ x: 0, y: 1300 }), false)).toBeUndefined()
   })
 
   it('不是按键触发的跳转、又按了键、点了鼠标：不守', () => {
     const scroll = new KeyScroll()
     scroll.take(10)
     scroll.hold({ x: 0, y: 900 })
-    expect(scroll.scrolled(20, () => ({ x: 0, y: 0 }))).toBeUndefined()
+    expect(scroll.scrolled(20, () => ({ x: 0, y: 0 }), false)).toBeUndefined()
     scroll.press({ x: 0, y: 40 }, 1000)
     scroll.take(1010)
     scroll.press({ x: 0, y: 40 }, 1100)
-    expect(scroll.scrolled(1110, () => ({ x: 0, y: 300 }))).toBeUndefined()
+    expect(scroll.scrolled(1110, () => ({ x: 0, y: 300 }), false)).toBeUndefined()
     scroll.take(1120)
     scroll.forget()
-    expect(scroll.scrolled(1130, () => ({ x: 0, y: 300 }))).toBeUndefined()
+    expect(scroll.scrolled(1130, () => ({ x: 0, y: 300 }), false)).toBeUndefined()
   })
 
   it('不守着时滚动不读滚动位置（读它会逼浏览器先排版）', () => {
     const scroll = new KeyScroll()
     const read = vi.fn(() => ({ x: 0, y: 300 }))
-    expect(scroll.scrolled(10, read)).toBeUndefined()
+    expect(scroll.scrolled(10, read, false)).toBeUndefined()
     scroll.press({ x: 0, y: 40 }, 1000)
-    expect(scroll.scrolled(1005, read)).toBeUndefined()
+    expect(scroll.scrolled(1005, read, false)).toBeUndefined()
     expect(read).not.toHaveBeenCalled()
     scroll.take(1010)
-    expect(scroll.scrolled(1020, read)).toEqual({ x: 0, y: 40 })
+    expect(scroll.scrolled(1020, read, false)).toEqual({ x: 0, y: 40 })
     expect(read).toHaveBeenCalledTimes(1)
   })
 
-  it('我们自己滚过的位置不算浏览器滚走：差 1 像素、滚进视口都不再拉一次，真被滚走仍拉回', () => {
+  it('我们自己滚的（滚动所有者认出来的）不算浏览器滚走，改守滚到的位置；之后真被滚走拉回到那里', () => {
     const scroll = new KeyScroll()
     scroll.press({ x: 0, y: 40 }, 1000)
     scroll.take(1012)
-    // scrollBack 先滚到 39 再回到 40；滚进视口则落到另一个位置。这些事件可能晚于滚动调用才到
-    scroll.own({ x: 0, y: 39 })
-    scroll.own({ x: 0, y: 40 })
-    scroll.own({ x: 0, y: 800 })
-    expect(scroll.scrolled(1020, () => ({ x: 0, y: 39 }))).toBeUndefined()
-    expect(scroll.scrolled(1021, () => ({ x: 0, y: 39 }))).toBeUndefined()
-    expect(scroll.scrolled(1022, () => ({ x: 0, y: 800 }))).toBeUndefined()
+    // 滚进视口落到 800，跳完守它；页面长高时滚动所有者自己滚到 1320
+    expect(scroll.scrolled(1020, () => ({ x: 0, y: 800 }), true)).toBeUndefined()
     scroll.hold({ x: 0, y: 800 })
-    expect(scroll.scrolled(1030, () => ({ x: 0, y: 39 }))).toBeUndefined()
-    expect(scroll.scrolled(1040, () => ({ x: 0, y: 300 }))).toEqual({ x: 0, y: 800 })
+    expect(scroll.scrolled(1030, () => ({ x: 0, y: 1320 }), true)).toBeUndefined()
+    expect(scroll.scrolled(1040, () => ({ x: 0, y: 300 }), false)).toEqual({ x: 0, y: 1320 })
   })
 
   it('默认快捷键：mac 是 ⌘↓ / ⌘↑，别的系统是 ctrl；带了别的修饰键不算', () => {