{"version":3,"file":"space.mjs","sources":["../../../../../../packages/components/space/src/space.ts"],"sourcesContent":["import {\n  createTextVNode,\n  createVNode,\n  defineComponent,\n  isVNode,\n  renderSlot,\n} from 'vue'\nimport {\n  PatchFlags,\n  buildProps,\n  definePropType,\n  isArray,\n  isFragment,\n  isNumber,\n  isString,\n  isValidElementNode,\n} from '@element-plus/utils'\nimport { componentSizes } from '@element-plus/constants'\nimport Item from './item'\nimport { useSpace } from './use-space'\n\nimport type {\n  ExtractPropTypes,\n  StyleValue,\n  VNode,\n  VNodeArrayChildren,\n  VNodeChild,\n} from 'vue'\nimport type { Arrayable } from '@element-plus/utils'\nimport type { AlignItemsProperty } from 'csstype'\n\nexport const spaceProps = buildProps({\n  /**\n   * @description Placement direction\n   */\n  direction: {\n    type: String,\n    values: ['horizontal', 'vertical'],\n    default: 'horizontal',\n  },\n  /**\n   * @description Classname\n   */\n  class: {\n    type: definePropType<Arrayable<Record<string, boolean> | string>>([\n      String,\n      Object,\n      Array,\n    ]),\n    default: '',\n  },\n  /**\n   * @description Extra style rules\n   */\n  style: {\n    type: definePropType<StyleValue>([String, Array, Object]),\n    default: '',\n  },\n  /**\n   * @description Controls the alignment of items\n   */\n  alignment: {\n    type: definePropType<AlignItemsProperty>(String),\n    default: 'center',\n  },\n  /**\n   * @description Prefix for space-items\n   */\n  prefixCls: {\n    type: String,\n  },\n  /**\n   * @description Spacer\n   */\n  spacer: {\n    type: definePropType<VNodeChild>([Object, String, Number, Array]),\n    default: null,\n    validator: (val: unknown) => isVNode(val) || isNumber(val) || isString(val),\n  },\n  /**\n   * @description Auto wrapping\n   */\n  wrap: Boolean,\n  /**\n   * @description Whether to fill the container\n   */\n  fill: Boolean,\n  /**\n   * @description Ratio of fill\n   */\n  fillRatio: {\n    type: Number,\n    default: 100,\n  },\n  /**\n   * @description Spacing size\n   */\n  size: {\n    type: [String, Array, Number],\n    values: componentSizes,\n    validator: (val: unknown): val is [number, number] | number => {\n      return (\n        isNumber(val) ||\n        (isArray(val) && val.length === 2 && val.every(isNumber))\n      )\n    },\n  },\n} as const)\nexport type SpaceProps = ExtractPropTypes<typeof spaceProps>\n\nconst Space = defineComponent({\n  name: 'ElSpace',\n\n  props: spaceProps,\n\n  setup(props, { slots }) {\n    const { classes, containerStyle, itemStyle } = useSpace(props)\n\n    // retrieve the children out via a simple for loop\n    // the edge case here is that when users uses directives like <v-for>, <v-if>\n    // we need to go deeper until the child is not the Fragment type\n    function extractChildren(\n      children: VNodeArrayChildren,\n      parentKey = '',\n      extractedChildren: VNode[] = []\n    ) {\n      const { prefixCls } = props\n      children.forEach((child, loopKey) => {\n        if (isFragment(child)) {\n          if (isArray(child.children)) {\n            child.children.forEach((nested, key) => {\n              if (isFragment(nested) && isArray(nested.children)) {\n                extractChildren(\n                  nested.children,\n                  `${parentKey + key}-`,\n                  extractedChildren\n                )\n              } else {\n                extractedChildren.push(\n                  createVNode(\n                    Item,\n                    {\n                      style: itemStyle.value,\n                      prefixCls,\n                      key: `nested-${parentKey + key}`,\n                    },\n                    {\n                      default: () => [nested],\n                    },\n                    PatchFlags.PROPS | PatchFlags.STYLE,\n                    ['style', 'prefixCls']\n                  )\n                )\n              }\n            })\n          }\n          // if the current child is valid vnode, then append this current vnode\n          // to item as child node.\n        } else if (isValidElementNode(child)) {\n          extractedChildren.push(\n            createVNode(\n              Item,\n              {\n                style: itemStyle.value,\n                prefixCls,\n                key: `LoopKey${parentKey + loopKey}`,\n              },\n              {\n                default: () => [child],\n              },\n              PatchFlags.PROPS | PatchFlags.STYLE,\n              ['style', 'prefixCls']\n            )\n          )\n        }\n      })\n\n      return extractedChildren\n    }\n\n    return () => {\n      const { spacer, direction } = props\n\n      const children = renderSlot(slots, 'default', { key: 0 }, () => [])\n\n      if ((children.children ?? []).length === 0) return null\n      // loop the children, if current children is rendered via `renderList` or `<v-for>`\n      if (isArray(children.children)) {\n        let extractedChildren = extractChildren(children.children)\n\n        if (spacer) {\n          // track the current rendering index, when encounters the last element\n          // then no need to add a spacer after it.\n          const len = extractedChildren.length - 1\n          extractedChildren = extractedChildren.reduce<VNode[]>(\n            (acc, child, idx) => {\n              const children = [...acc, child]\n              if (idx !== len) {\n                children.push(\n                  createVNode(\n                    'span',\n                    // adding width 100% for vertical alignment,\n                    // when the spacer inherit the width from the\n                    // parent, this span's width was not set, so space\n                    // might disappear\n                    {\n                      style: [\n                        itemStyle.value,\n                        direction === 'vertical' ? 'width: 100%' : null,\n                      ],\n                      key: idx,\n                    },\n                    [\n                      // if spacer is already a valid vnode, then append it to the current\n                      // span element.\n                      // otherwise, treat it as string.\n                      isVNode(spacer)\n                        ? spacer\n                        : createTextVNode(spacer as string, PatchFlags.TEXT),\n                    ],\n                    PatchFlags.STYLE\n                  )\n                )\n              }\n              return children\n            },\n            []\n          )\n        }\n\n        // spacer container.\n        return createVNode(\n          'div',\n          {\n            class: classes.value,\n            style: containerStyle.value,\n          },\n          extractedChildren,\n          PatchFlags.STYLE | PatchFlags.CLASS\n        )\n      }\n\n      return children.children\n    }\n  },\n})\n\nexport type SpaceInstance = InstanceType<typeof Space>\n\nexport default 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