fix(calendar-item): 修复容器高度小于选择器高度时，位置计算错误问题

vace · web-flow · commit aacb539a049d · 2026-01-19T16:28:51.000+08:00
viewHeight.value 为容器高度，当容器恰好比当前选中月份高度低时，会导致 `viewPosition &lt; state.monthsData[current].cssScrollHeight + state.monthsData[current].cssHeight` 始终为 true 。从而导致滚动位置偏差一个月。
diff --git a/src/packages/__VUE/calendaritem/index.vue b/src/packages/__VUE/calendaritem/index.vue
@@ -778,7 +778,7 @@ export default create({
           current -= 1
         }
       } else {
-        const viewPosition = Math.round(currentScrollTop + viewHeight.value)
+        const viewPosition = Math.round(currentScrollTop + Math.max(viewHeight.value, state.monthsData[current].cssHeight))  
         if (
           viewPosition < state.monthsData[current].cssScrollHeight + state.monthsData[current].cssHeight
           && currentScrollTop > state.monthsData[current - 1].cssScrollHeight

Original file line number	Diff line number	Diff line change
`@@ -778,7 +778,7 @@ export default create({`
`778`	`778`	`current -= 1`
`779`	`779`	`}`
`780`	`780`	`} else {`
`781`		`- const viewPosition = Math.round(currentScrollTop + viewHeight.value)`
	`781`	`+ const viewPosition = Math.round(currentScrollTop + Math.max(viewHeight.value, state.monthsData[current].cssHeight))`
`782`	`782`	`if (`
`783`	`783`	`viewPosition < state.monthsData[current].cssScrollHeight + state.monthsData[current].cssHeight`
`784`	`784`	`&& currentScrollTop > state.monthsData[current - 1].cssScrollHeight`