cat-power/node_modules/element-plus/es/hooks/use-namespace/index.mjs

import { getCurrentInstance, inject, ref, computed, unref } from 'vue';

const defaultNamespace = "el";
const statePrefix = "is-";
const _bem = (namespace, block, blockSuffix, element, modifier) => {
  let cls = `${namespace}-${block}`;
  if (blockSuffix) {
    cls += `-${blockSuffix}`;
  }
  if (element) {
    cls += `__${element}`;
  }
  if (modifier) {
    cls += `--${modifier}`;
  }
  return cls;
};
const namespaceContextKey = Symbol("namespaceContextKey");
const useGetDerivedNamespace = (namespaceOverrides) => {
  const derivedNamespace = namespaceOverrides || (getCurrentInstance() ? inject(namespaceContextKey, ref(defaultNamespace)) : ref(defaultNamespace));
  const namespace = computed(() => {
    return unref(derivedNamespace) || defaultNamespace;
  });
  return namespace;
};
const useNamespace = (block, namespaceOverrides) => {
  const namespace = useGetDerivedNamespace(namespaceOverrides);
  const b = (blockSuffix = "") => _bem(namespace.value, block, blockSuffix, "", "");
  const e = (element) => element ? _bem(namespace.value, block, "", element, "") : "";
  const m = (modifier) => modifier ? _bem(namespace.value, block, "", "", modifier) : "";
  const be = (blockSuffix, element) => blockSuffix && element ? _bem(namespace.value, block, blockSuffix, element, "") : "";
  const em = (element, modifier) => element && modifier ? _bem(namespace.value, block, "", element, modifier) : "";
  const bm = (blockSuffix, modifier) => blockSuffix && modifier ? _bem(namespace.value, block, blockSuffix, "", modifier) : "";
  const bem = (blockSuffix, element, modifier) => blockSuffix && element && modifier ? _bem(namespace.value, block, blockSuffix, element, modifier) : "";
  const is = (name, ...args) => {
    const state = args.length >= 1 ? args[0] : true;
    return name && state ? `${statePrefix}${name}` : "";
  };
  const cssVar = (object) => {
    const styles = {};
    for (const key in object) {
      if (object[key]) {
        styles[`--${namespace.value}-${key}`] = object[key];
      }
    }
    return styles;
  };
  const cssVarBlock = (object) => {
    const styles = {};
    for (const key in object) {
      if (object[key]) {
        styles[`--${namespace.value}-${block}-${key}`] = object[key];
      }
    }
    return styles;
  };
  const cssVarName = (name) => `--${namespace.value}-${name}`;
  const cssVarBlockName = (name) => `--${namespace.value}-${block}-${name}`;
  return {
    namespace,
    b,
    e,
    m,
    be,
    em,
    bm,
    bem,
    is,
    cssVar,
    cssVarName,
    cssVarBlock,
    cssVarBlockName
  };
};

export { defaultNamespace, namespaceContextKey, useGetDerivedNamespace, useNamespace };
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