mldong-flow-designer-plus/lib/scroll-IAc2pH-N.js

本项目包含了作者为B站课堂视频[《工作流设计器开发最佳实践》](https://www.bilibili.com/cheese/play/ss24484)的过程源码。教程中开发的组件也可用于实际生产环境中。以下是和使用文档和课程章节说明。 ## 实战项目 [演示地址](https://flow-pro.mldong.com/)

import { isVNode } from "vue";
import { i as isArray, h as isClient } from "./install-B1DDHDqt.js";
var PatchFlags = /* @__PURE__ */ ((PatchFlags2) => {
  PatchFlags2[PatchFlags2["TEXT"] = 1] = "TEXT";
  PatchFlags2[PatchFlags2["CLASS"] = 2] = "CLASS";
  PatchFlags2[PatchFlags2["STYLE"] = 4] = "STYLE";
  PatchFlags2[PatchFlags2["PROPS"] = 8] = "PROPS";
  PatchFlags2[PatchFlags2["FULL_PROPS"] = 16] = "FULL_PROPS";
  PatchFlags2[PatchFlags2["HYDRATE_EVENTS"] = 32] = "HYDRATE_EVENTS";
  PatchFlags2[PatchFlags2["STABLE_FRAGMENT"] = 64] = "STABLE_FRAGMENT";
  PatchFlags2[PatchFlags2["KEYED_FRAGMENT"] = 128] = "KEYED_FRAGMENT";
  PatchFlags2[PatchFlags2["UNKEYED_FRAGMENT"] = 256] = "UNKEYED_FRAGMENT";
  PatchFlags2[PatchFlags2["NEED_PATCH"] = 512] = "NEED_PATCH";
  PatchFlags2[PatchFlags2["DYNAMIC_SLOTS"] = 1024] = "DYNAMIC_SLOTS";
  PatchFlags2[PatchFlags2["HOISTED"] = -1] = "HOISTED";
  PatchFlags2[PatchFlags2["BAIL"] = -2] = "BAIL";
  return PatchFlags2;
})(PatchFlags || {});
const flattedChildren = (children) => {
  const vNodes = isArray(children) ? children : [children];
  const result = [];
  vNodes.forEach((child) => {
    var _a;
    if (isArray(child)) {
      result.push(...flattedChildren(child));
    } else if (isVNode(child) && ((_a = child.component) == null ? void 0 : _a.subTree)) {
      result.push(child, ...flattedChildren(child.component.subTree));
    } else if (isVNode(child) && isArray(child.children)) {
      result.push(...flattedChildren(child.children));
    } else if (isVNode(child) && child.shapeFlag === 2) {
      result.push(...flattedChildren(child.type()));
    } else {
      result.push(child);
    }
  });
  return result;
};
let scrollBarWidth;
const getScrollBarWidth = (namespace) => {
  var _a;
  if (!isClient)
    return 0;
  if (scrollBarWidth !== void 0)
    return scrollBarWidth;
  const outer = document.createElement("div");
  outer.className = `${namespace}-scrollbar__wrap`;
  outer.style.visibility = "hidden";
  outer.style.width = "100px";
  outer.style.position = "absolute";
  outer.style.top = "-9999px";
  document.body.appendChild(outer);
  const widthNoScroll = outer.offsetWidth;
  outer.style.overflow = "scroll";
  const inner = document.createElement("div");
  inner.style.width = "100%";
  outer.appendChild(inner);
  const widthWithScroll = inner.offsetWidth;
  (_a = outer.parentNode) == null ? void 0 : _a.removeChild(outer);
  scrollBarWidth = widthNoScroll - widthWithScroll;
  return scrollBarWidth;
};
function scrollIntoView(container, selected) {
  if (!isClient)
    return;
  if (!selected) {
    container.scrollTop = 0;
    return;
  }
  const offsetParents = [];
  let pointer = selected.offsetParent;
  while (pointer !== null && container !== pointer && container.contains(pointer)) {
    offsetParents.push(pointer);
    pointer = pointer.offsetParent;
  }
  const top = selected.offsetTop + offsetParents.reduce((prev, curr) => prev + curr.offsetTop, 0);
  const bottom = top + selected.offsetHeight;
  const viewRectTop = container.scrollTop;
  const viewRectBottom = viewRectTop + container.clientHeight;
  if (top < viewRectTop) {
    container.scrollTop = top;
  } else if (bottom > viewRectBottom) {
    container.scrollTop = bottom - container.clientHeight;
  }
}
export {
  PatchFlags as P,
  flattedChildren as f,
  getScrollBarWidth as g,
  scrollIntoView as s
};
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