iter(g113): 吸顶容器支持贴底固定

2026-10-26 14:06:32 +08:00
parent 5c25e88c98
commit ec7aaf0a7d
6 changed files with 34 additions and 8 deletions
@@ -2684,6 +2684,11 @@
            "t": "number",
            "d": "距视口顶部多少像素后转为固定；缺省 0"
          },
+          {
+            "n": "position",
+            "t": "'top' | 'bottom'",
+            "d": "固定边：贴顶放头部工具栏，贴底放底部操作条；缺省 top"
+          },
          {
            "n": "target",
            "t": "HTMLElement | Window",
@@ -2700,7 +2705,8 @@
          "把要贴住的内容作为实参传入；组件内部包两层：外层占位、内层负责 fixed",
          "滚动到 offset 以内（默认贴视口顶）时内层转 fixed，外层同步撑出等高占位，页面不会塌跳",
          "固定期间宽度与横向位置跟随占位容器，窗口缩放或父容器变宽都自动贴合",
-          "内滚容器场景把该元素传给 target，判定改为基于它的滚动位置"
+          "内滚容器场景把该元素传给 target，判定改为基于它的滚动位置",
+          "底部操作条传 position: 'bottom'：占位容器底边越过「视口底 - offset」时才固定，对应的内联边距写 bottom"
        ]
      },
      {