{
  "schemaVersion": 1,
  "sourceKind": "authored-spec",
  "provenance": "authored-in-repo",
  "specFile": "spec/移动端规格.md",
  "specSection": "4 · 下拉刷新 PullRefresh",
  "confidence": "high",
  "slug": "pullrefresh",
  "name": "下拉刷新 PullRefresh",
  "semanticTypeCandidates": [
    "pull-refresh",
    "gesture",
    "list-viewport"
  ],
  "variantDimensions": [
    {
      "name": "state",
      "values": [
        "pull",
        "ready",
        "refreshing",
        "done"
      ]
    },
    {
      "name": "threshold",
      "values": [
        "60"
      ]
    }
  ],
  "representativeVariants": [
    {
      "state": "pull",
      "threshold": "60",
      "label": "下拉中"
    },
    {
      "state": "ready",
      "threshold": "60",
      "label": "已达阈值"
    },
    {
      "state": "refreshing",
      "threshold": "60",
      "label": "刷新中"
    },
    {
      "state": "done",
      "threshold": "60",
      "label": "完成提示"
    }
  ],
  "anatomy": {
    "viewport": "包裹滚动内容的容器，负责手势",
    "indicator": "下拉指示区，含箭头或旋转图标与状态文字",
    "content": "业务内容"
  },
  "structurePatterns": {
    "state": "pull（下拉中）/ ready（已达阈值）/ refreshing（刷新中）/ done（完成提示）",
    "threshold": "触发阈值，默认 60px"
  },
  "usageHints": [
    "列表顶部下拉手势触发刷新，移动端最常见的列表刷新入口",
    "手势使用 Pointer Events，位移以纵向为主；横向位移更大时让位给页面横滑",
    "达到阈值后松手进入 refreshing；未达阈值松手回弹",
    "刷新期间再次下拉不重复触发",
    "指示区 role=status + aria-live=polite，状态文字变化被读屏播报",
    "需保留一个非手势的等价入口（如列表底部的刷新按钮）"
  ],
  "doNotInvent": [
    "惯性与阻尼曲线",
    "与页面整体下拉（浏览器级）的竞争规则"
  ],
  "unknowns": [
    "刷新超时的提示形式",
    "完成提示的停留时长"
  ],
  "interaction": [
    "手势使用 Pointer Events，位移以纵向为主；横向位移更大时让位给页面横滑",
    "达到阈值后松手进入 refreshing；未达阈值松手回弹",
    "刷新期间再次下拉不重复触发"
  ],
  "accessibility": [
    "指示区 role=status + aria-live=polite，状态文字变化被读屏播报",
    "需保留一个非手势的等价入口（如列表底部的刷新按钮）"
  ],
  "api": {
    "source": "implementation",
    "note": "props / events / slots 为 6 端实现的公共接口（说明文字取自规格对应小节）。字段名与各端源码逐名核对：node tools/verify-mobile-docs.mjs",
    "props": [
      {
        "name": "threshold",
        "type": "number",
        "default": "60",
        "desc": "触发阈值：浏览器端（css/h5/react/vue2/vue3）单位为 px，默认 60；uni-app 端单位为 rpx，默认 120（≈ 60px @375pt）",
        "required": false
      },
      {
        "name": "refreshing",
        "type": "boolean",
        "default": "false",
        "desc": "刷新中状态；由业务侧在 refresh 事件后置位（规格 §4.4）",
        "required": false
      },
      {
        "name": "done",
        "type": "boolean",
        "default": "false",
        "desc": "完成提示状态（规格 §4.4）",
        "required": false
      },
      {
        "name": "fallbackLabel",
        "type": "string",
        "default": "'刷新列表'",
        "desc": "非手势等价入口的文案（规格 §4.6）",
        "required": false
      }
    ],
    "events": [
      {
        "name": "refresh",
        "params": "—",
        "desc": "松手达到阈值时触发（手动点等价入口同样触发）"
      }
    ],
    "slots": [
      {
        "name": "default",
        "desc": "列表内容；组件在外层包裹手势与指示区（规格 §4.2）"
      }
    ],
    "requiredNote": "「必传」按严格定义：实现里**没有默认值**时才为 Y（本门禁逐条核对 props 与各端源码的默认值，防止契约与实现脱节）。"
  },
  "variantClasses": {
    "state": {
      "pull": [
        ".is-pulling"
      ],
      "ready": [
        ".is-ready"
      ],
      "refreshing": [
        ".is-refreshing"
      ],
      "done": [
        ".is-done"
      ]
    },
    "threshold": {
      "60": [
        "--kole-m-pullrefresh-threshold"
      ]
    }
  },
  "demos": [
    {
      "id": "pull",
      "group": "01 组件类型",
      "title": "下拉中",
      "desc": "未达阈值：指示器随位移旋转，提示「下拉即可刷新」。",
      "variant": "state=pull"
    },
    {
      "id": "ready",
      "group": "01 组件类型",
      "title": "已达阈值",
      "desc": "达到 60px 提示改为「松开立即刷新」，松手即进入刷新。",
      "variant": "state=ready"
    },
    {
      "id": "refreshing",
      "group": "01 组件类型",
      "title": "刷新中",
      "desc": "指示器持续旋转、下拉不回弹；期间再次下拉不重复触发。",
      "variant": "state=refreshing"
    },
    {
      "id": "done",
      "group": "01 组件类型",
      "title": "完成提示",
      "desc": "完成态短暂停留后复位（停留时长规格未定，见「规格未定」）。",
      "variant": "state=done"
    }
  ],
  "related": [
    {
      "slug": "swipecell",
      "why": "同属手势交互：下拉是纵向、滑动是横向，两者靠方向判定让位"
    },
    {
      "slug": "navbar",
      "why": "刷新常与顶栏配合（刷新后更新标题或角标）"
    }
  ]
}