element-plus/es/components/tabs/src/tabs.mjs.map

A Component Library for Vue 3

{"version":3,"file":"tabs.mjs","sources":["../../../../../../packages/components/tabs/src/tabs.tsx"],"sourcesContent":["import {\n  computed,\n  createVNode,\n  defineComponent,\n  getCurrentInstance,\n  nextTick,\n  provide,\n  ref,\n  renderSlot,\n  watch,\n} from 'vue'\nimport { omit } from 'lodash-unified'\nimport {\n  buildProps,\n  definePropType,\n  isNumber,\n  isString,\n  isUndefined,\n} from '@element-plus/utils'\nimport { EVENT_CODE, UPDATE_MODEL_EVENT } from '@element-plus/constants'\nimport ElIcon from '@element-plus/components/icon'\nimport { Plus } from '@element-plus/icons-vue'\nimport { useNamespace, useOrderedChildren } from '@element-plus/hooks'\nimport { tabsRootContextKey } from './constants'\nimport TabNav from './tab-nav'\n\nimport type { ExtractPropTypes, VNode, __ExtractPublicPropTypes } from 'vue'\nimport type { Awaitable } from '@element-plus/utils'\nimport type { TabNavInstance } from './tab-nav'\nimport type { TabPaneName, TabsPaneContext } from './constants'\n\nexport const tabsProps = buildProps({\n  /**\n   * @description type of Tab\n   */\n  type: {\n    type: String,\n    values: ['card', 'border-card', ''],\n    default: '',\n  },\n  /**\n   * @description whether Tab is closable\n   */\n  closable: Boolean,\n  /**\n   * @description whether Tab is addable\n   */\n  addable: Boolean,\n  /**\n   * @description binding value, name of the selected tab\n   */\n  modelValue: {\n    type: [String, Number],\n  },\n  /**\n   * @description whether Tab is addable and closable\n   */\n  editable: Boolean,\n  /**\n   * @description position of tabs\n   */\n  tabPosition: {\n    type: String,\n    values: ['top', 'right', 'bottom', 'left'],\n    default: 'top',\n  },\n  /**\n   * @description hook function before switching tab. If `false` is returned or a `Promise` is returned and then is rejected, switching will be prevented\n   */\n  beforeLeave: {\n    type: definePropType<\n      (newName: TabPaneName, oldName: TabPaneName) => Awaitable<void | boolean>\n    >(Function),\n    default: () => true,\n  },\n  /**\n   * @description whether width of tab automatically fits its container\n   */\n  stretch: Boolean,\n} as const)\nexport type TabsProps = ExtractPropTypes<typeof tabsProps>\nexport type TabsPropsPublic = __ExtractPublicPropTypes<typeof tabsProps>\n\nconst isPaneName = (value: unknown): value is string | number =>\n  isString(value) || isNumber(value)\n\nexport const tabsEmits = {\n  [UPDATE_MODEL_EVENT]: (name: TabPaneName) => isPaneName(name),\n  tabClick: (pane: TabsPaneContext, ev: Event) => ev instanceof Event,\n  tabChange: (name: TabPaneName) => isPaneName(name),\n  edit: (paneName: TabPaneName | undefined, action: 'remove' | 'add') =>\n    ['remove', 'add'].includes(action),\n  tabRemove: (name: TabPaneName) => isPaneName(name),\n  tabAdd: () => true,\n}\nexport type TabsEmits = typeof tabsEmits\n\nexport type TabsPanes = Record<number, TabsPaneContext>\n\nconst Tabs = defineComponent({\n  name: 'ElTabs',\n\n  props: tabsProps,\n  emits: tabsEmits,\n\n  setup(props, { emit, slots, expose }) {\n    const ns = useNamespace('tabs')\n\n    const isVertical = computed(() =>\n      ['left', 'right'].includes(props.tabPosition)\n    )\n\n    const {\n      children: panes,\n      addChild: registerPane,\n      removeChild: unregisterPane,\n      ChildrenSorter: PanesSorter,\n    } = useOrderedChildren<TabsPaneContext>(getCurrentInstance()!, 'ElTabPane')\n\n    const nav$ = ref<TabNavInstance>()\n    const currentName = ref<TabPaneName>(props.modelValue ?? '0')\n\n    const setCurrentName = async (value?: TabPaneName, trigger = false) => {\n      // should do nothing.\n      if (currentName.value === value || isUndefined(value)) return\n\n      try {\n        let canLeave\n        if (props.beforeLeave) {\n          const result = props.beforeLeave(value, currentName.value)\n          canLeave = result instanceof Promise ? await result : result\n        } else {\n          canLeave = true\n        }\n\n        if (canLeave !== false) {\n          const isFocusInsidePane = panes.value\n            .find((item) => item.paneName === currentName.value)\n            ?.isFocusInsidePane()\n\n          currentName.value = value\n          if (trigger) {\n            emit(UPDATE_MODEL_EVENT, value)\n            emit('tabChange', value)\n          }\n\n          nav$.value?.removeFocus?.()\n          if (isFocusInsidePane) {\n            nav$.value?.focusActiveTab()\n          }\n        }\n      } catch {}\n    }\n\n    const handleTabClick = (\n      tab: TabsPaneContext,\n      tabName: TabPaneName,\n      event: Event\n    ) => {\n      if (tab.props.disabled) return\n      emit('tabClick', tab, event)\n      setCurrentName(tabName, true)\n    }\n\n    const handleTabRemove = (pane: TabsPaneContext, ev: Event) => {\n      if (pane.props.disabled || isUndefined(pane.props.name)) return\n      ev.stopPropagation()\n      emit('edit', pane.props.name, 'remove')\n      emit('tabRemove', pane.props.name)\n    }\n\n    const handleTabAdd = () => {\n      emit('edit', undefined, 'add')\n      emit('tabAdd')\n    }\n\n    const swapChildren = (\n      vnode: VNode & {\n        el: HTMLDivElement\n        children: VNode<HTMLDivElement>[]\n      }\n    ) => {\n      const actualFirstChild = vnode.el.firstChild!\n      const firstChild = ['bottom', 'right'].includes(props.tabPosition)\n        ? vnode.children[0].el!\n        : vnode.children[1].el!\n\n      if (actualFirstChild !== firstChild) {\n        actualFirstChild.before(firstChild)\n      }\n    }\n\n    watch(\n      () => props.modelValue,\n      (modelValue) => setCurrentName(modelValue)\n    )\n\n    watch(currentName, async () => {\n      await nextTick()\n      nav$.value?.scrollToActiveTab()\n    })\n\n    provide(tabsRootContextKey, {\n      props,\n      currentName,\n      registerPane,\n      unregisterPane,\n      nav$,\n    })\n\n    expose({\n      currentName,\n      get tabNavRef() {\n        return omit(nav$.value, ['scheduleRender'])\n      },\n    })\n\n    return () => {\n      const addSlot = slots['add-icon']\n      const newButton =\n        props.editable || props.addable ? (\n          <div\n            class={[\n              ns.e('new-tab'),\n              isVertical.value && ns.e('new-tab-vertical'),\n            ]}\n            tabindex=\"0\"\n            onClick={handleTabAdd}\n            onKeydown={(ev: KeyboardEvent) => {\n              if ([EVENT_CODE.enter, EVENT_CODE.numpadEnter].includes(ev.code))\n                handleTabAdd()\n            }}\n          >\n            {addSlot ? (\n              renderSlot(slots, 'add-icon')\n            ) : (\n              <ElIcon class={ns.is('icon-plus')}>\n                <Plus />\n              </ElIcon>\n            )}\n          </div>\n        ) : null\n\n      const tabNav = () => (\n        <TabNav\n          ref={nav$}\n          currentName={currentName.value}\n          editable={props.editable}\n          type={props.type}\n          panes={panes.value}\n          stretch={props.stretch}\n          onTabClick={handleTabClick}\n          onTabRemove={handleTabRemove}\n        />\n      )\n\n      const header = (\n        <div\n          class={[\n            ns.e('header'),\n            isVertical.value && ns.e('header-vertical'),\n            ns.is(props.tabPosition),\n          ]}\n        >\n          {createVNode(PanesSorter, null, {\n            default: tabNav,\n            $stable: true,\n          })}\n          {newButton}\n        </div>\n      )\n\n      const panels = (\n        <div class={ns.e('content')}>{renderSlot(slots, 'default')}</div>\n      )\n\n      return (\n        <div\n          class={[\n            ns.b(),\n            ns.m(props.tabPosition),\n            {\n              [ns.m('card')]: props.type === 'card',\n              [ns.m('border-card')]: props.type === 'border-card',\n            },\n          ]}\n          // @ts-ignore\n          onVnodeMounted={swapChildren}\n          onVnodeUpdated={swapChildren}\n        >\n          {panels}\n          {header}\n        </div>\n      )\n    }\n  },\n})\n\nexport type TabsInstance = InstanceType<typeof Tabs> & {\n  currentName: TabPaneName\n  tabNavRef: TabNavInstance | undefined\n}\n\nexport default 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