mldong-flow-designer-plus/lib/index-D5q4e_u4.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 { q as isFunction, p as isFocusable } from "./error-DEV4o0cD.js";
import { a as useEventListener } from "./index-rPPo0srK.js";
import { getCurrentInstance, shallowRef, ref, watch, unref, nextTick } from "vue";
function useFocusController(target, { disabled, beforeFocus, afterFocus, beforeBlur, afterBlur } = {}) {
  const { emit } = getCurrentInstance();
  const wrapperRef = shallowRef();
  const isFocused = ref(false);
  const handleFocus = (event) => {
    const cancelFocus = isFunction(beforeFocus) ? beforeFocus(event) : false;
    if (unref(disabled) || isFocused.value || cancelFocus) return;
    isFocused.value = true;
    emit("focus", event);
    afterFocus == null ? void 0 : afterFocus();
  };
  const handleBlur = (event) => {
    var _a;
    const cancelBlur = isFunction(beforeBlur) ? beforeBlur(event) : false;
    if (unref(disabled) || event.relatedTarget && ((_a = wrapperRef.value) == null ? void 0 : _a.contains(event.relatedTarget)) || cancelBlur) return;
    isFocused.value = false;
    emit("blur", event);
    afterBlur == null ? void 0 : afterBlur();
  };
  const handleClick = (event) => {
    var _a, _b;
    if (unref(disabled) || isFocusable(event.target) || ((_a = wrapperRef.value) == null ? void 0 : _a.contains(document.activeElement)) && wrapperRef.value !== document.activeElement) return;
    (_b = target.value) == null ? void 0 : _b.focus();
  };
  watch([wrapperRef, () => unref(disabled)], ([el, disabled2]) => {
    if (!el) return;
    if (disabled2) el.removeAttribute("tabindex");
    else el.setAttribute("tabindex", "-1");
  });
  useEventListener(wrapperRef, "focus", handleFocus, true);
  useEventListener(wrapperRef, "blur", handleBlur, true);
  useEventListener(wrapperRef, "click", handleClick, true);
  return {
    isFocused,
    /** Avoid using wrapperRef and handleFocus/handleBlur together */
    wrapperRef,
    handleFocus,
    handleBlur
  };
}
function useComposition({ afterComposition, emit }) {
  const isComposing = ref(false);
  const handleCompositionStart = (event) => {
    emit == null ? void 0 : emit("compositionstart", event);
    isComposing.value = true;
  };
  const handleCompositionUpdate = (event) => {
    emit == null ? void 0 : emit("compositionupdate", event);
    isComposing.value = true;
  };
  const handleCompositionEnd = (event) => {
    emit == null ? void 0 : emit("compositionend", event);
    if (isComposing.value) {
      isComposing.value = false;
      nextTick(() => afterComposition(event));
    }
  };
  const handleComposition = (event) => {
    event.type === "compositionend" ? handleCompositionEnd(event) : handleCompositionUpdate(event);
  };
  return {
    isComposing,
    handleComposition,
    handleCompositionStart,
    handleCompositionUpdate,
    handleCompositionEnd
  };
}
export {
  useFocusController as a,
  useComposition as u
};
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