AI-TALK-web/node_modules/element-plus/es/components/select/src/useOption.mjs

import { inject, computed, getCurrentInstance, toRaw, watch } from 'vue';
import { castArray, get, isEqual } from 'lodash-unified';
import { selectKey, selectGroupKey } from './token.mjs';
import { COMPONENT_NAME } from './option.mjs';
import { escapeStringRegexp } from '../../../utils/strings.mjs';
import { throwError } from '../../../utils/error.mjs';
import { isObject } from '@vue/shared';

function useOption(props, states) {
  const select = inject(selectKey);
  if (!select) {
    throwError(COMPONENT_NAME, "usage: <el-select><el-option /></el-select/>");
  }
  const selectGroup = inject(selectGroupKey, { disabled: false });
  const itemSelected = computed(() => {
    return contains(castArray(select.props.modelValue), props.value);
  });
  const limitReached = computed(() => {
    var _a;
    if (select.props.multiple) {
      const modelValue = castArray((_a = select.props.modelValue) != null ? _a : []);
      return !itemSelected.value && modelValue.length >= select.props.multipleLimit && select.props.multipleLimit > 0;
    } else {
      return false;
    }
  });
  const currentLabel = computed(() => {
    var _a;
    return (_a = props.label) != null ? _a : isObject(props.value) ? "" : props.value;
  });
  const currentValue = computed(() => {
    return props.value || props.label || "";
  });
  const isDisabled = computed(() => {
    return props.disabled || states.groupDisabled || limitReached.value;
  });
  const instance = getCurrentInstance();
  const contains = (arr = [], target) => {
    if (!isObject(props.value)) {
      return arr && arr.includes(target);
    } else {
      const valueKey = select.props.valueKey;
      return arr && arr.some((item) => {
        return toRaw(get(item, valueKey)) === get(target, valueKey);
      });
    }
  };
  const hoverItem = () => {
    if (!isDisabled.value) {
      select.states.hoveringIndex = select.optionsArray.indexOf(instance.proxy);
    }
  };
  const updateOption = (query) => {
    const regexp = new RegExp(escapeStringRegexp(query), "i");
    states.visible = regexp.test(String(currentLabel.value)) || props.created;
  };
  watch(
    () => currentLabel.value,
    () => {
      if (!props.created && !select.props.remote)
        select.setSelected();
    }
  );
  watch(
    () => props.value,
    (val, oldVal) => {
      const { remote, valueKey } = select.props;
      const shouldUpdate = remote ? val !== oldVal : !isEqual(val, oldVal);
      if (shouldUpdate) {
        select.onOptionDestroy(oldVal, instance.proxy);
        select.onOptionCreate(instance.proxy);
      }
      if (!props.created && !remote) {
        if (valueKey && isObject(val) && isObject(oldVal) && val[valueKey] === oldVal[valueKey]) {
          return;
        }
        select.setSelected();
      }
    }
  );
  watch(
    () => selectGroup.disabled,
    () => {
      states.groupDisabled = selectGroup.disabled;
    },
    { immediate: true }
  );
  return {
    select,
    currentLabel,
    currentValue,
    itemSelected,
    isDisabled,
    hoverItem,
    updateOption
  };
}

export { useOption };
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