{"version":3,"file":"notify.js","sources":["../../../../../../packages/components/notification/src/notify.ts"],"sourcesContent":["import { createVNode, render } from 'vue'\nimport {\n  debugWarn,\n  isClient,\n  isElement,\n  isString,\n  isVNode,\n} from '@element-plus/utils'\nimport NotificationConstructor from './notification.vue'\nimport { notificationTypes } from './notification'\n\nimport type { AppContext, Ref, VNode } from 'vue'\nimport type {\n  NotificationOptions,\n  NotificationProps,\n  NotificationQueue,\n  Notify,\n  NotifyFn,\n} from './notification'\n\n// This should be a queue but considering there were `non-autoclosable` notifications.\nconst notifications: Record<\n  NotificationOptions['position'],\n  NotificationQueue\n> = {\n  'top-left': [],\n  'top-right': [],\n  'bottom-left': [],\n  'bottom-right': [],\n}\n\n// the gap size between each notification\nconst GAP_SIZE = 16\nlet seed = 1\n\nconst notify: NotifyFn & Partial<Notify> & { _context: AppContext | null } =\n  function (options = {}, context: AppContext | null = null) {\n    if (!isClient) return { close: () => undefined }\n\n    if (typeof options === 'string' || isVNode(options)) {\n      options = { message: options }\n    }\n\n    const position = options.position || 'top-right'\n\n    let verticalOffset = options.offset || 0\n    notifications[position].forEach(({ vm }) => {\n      verticalOffset += (vm.el?.offsetHeight || 0) + GAP_SIZE\n    })\n    verticalOffset += GAP_SIZE\n\n    const id = `notification_${seed++}`\n    const userOnClose = options.onClose\n    const props: Partial<NotificationProps> = {\n      ...options,\n      offset: verticalOffset,\n      id,\n      onClose: () => {\n        close(id, position, userOnClose)\n      },\n    }\n\n    let appendTo: HTMLElement | null = document.body\n    if (isElement(options.appendTo)) {\n      appendTo = options.appendTo\n    } else if (isString(options.appendTo)) {\n      appendTo = document.querySelector(options.appendTo)\n    }\n\n    // should fallback to default value with a warning\n    if (!isElement(appendTo)) {\n      debugWarn(\n        'ElNotification',\n        'the appendTo option is not an HTMLElement. Falling back to document.body.'\n      )\n      appendTo = document.body\n    }\n\n    const container = document.createElement('div')\n\n    const vm = createVNode(\n      NotificationConstructor,\n      props,\n      isVNode(props.message)\n        ? {\n            default: () => props.message,\n          }\n        : null\n    )\n    vm.appContext = context ?? notify._context\n\n    // clean notification element preventing mem leak\n    vm.props!.onDestroy = () => {\n      render(null, container)\n    }\n\n    // instances will remove this item when close function gets called. So we do not need to worry about it.\n    render(vm, container)\n    notifications[position].push({ vm })\n    appendTo.appendChild(container.firstElementChild!)\n\n    return {\n      // instead of calling the onClose function directly, setting this value so that we can have the full lifecycle\n      // for out component, so that all closing steps will not be skipped.\n      close: () => {\n        ;(vm.component!.exposed as { visible: Ref<boolean> }).visible.value =\n          false\n      },\n    }\n  }\nnotificationTypes.forEach((type) => {\n  notify[type] = (options = {}) => {\n    if (typeof options === 'string' || isVNode(options)) {\n      options = {\n        message: options,\n      }\n    }\n    return notify({\n      ...options,\n      type,\n    })\n  }\n})\n\n/**\n * This function gets called when user click `x` button or press `esc` or the time reached its limitation.\n * Emitted by transition@before-leave event so that we can fetch the current notification.offsetHeight, if this was called\n * by @after-leave the DOM element will be removed from the page thus we can no longer fetch the offsetHeight.\n * @param {String} id notification id to be closed\n * @param {Position} position the positioning strategy\n * @param {Function} userOnClose the callback called when close passed by user\n */\nexport function close(\n  id: string,\n  position: NotificationOptions['position'],\n  userOnClose?: (vm: VNode) => void\n): void {\n  // maybe we can store the index when inserting the vm to notification list.\n  const orientedNotifications = notifications[position]\n  const idx = orientedNotifications.findIndex(\n    ({ vm }) => vm.component?.props.id === id\n  )\n  if (idx === -1) return\n  const { vm } = orientedNotifications[idx]\n  if (!vm) return\n  // calling user's on close function before notification gets removed from DOM.\n  userOnClose?.(vm)\n\n  // note that this is called @before-leave, that's why we were able to fetch this property.\n  const removedHeight = vm.el!.offsetHeight\n  const verticalPos = position.split('-')[0]\n  orientedNotifications.splice(idx, 1)\n  const len = orientedNotifications.length\n  if (len < 1) return\n  // starting from the removing item.\n  for (let i = idx; i < len; i++) {\n    // new position equals the current offsetTop minus removed height plus 16px(the gap size between each item)\n    const { el, component } = orientedNotifications[i].vm\n    const pos =\n      Number.parseInt(el!.style[verticalPos], 10) - removedHeight - GAP_SIZE\n    component!.props.offset = pos\n  }\n}\n\nexport function closeAll(): void {\n  // loop through all directions, close them at once.\n  for (const orientedNotifications of Object.values(notifications)) {\n    orientedNotifications.forEach(({ vm }) => {\n      // same as the previous close method, we'd like to make sure lifecycle gets handle properly.\n      ;(vm.component!.exposed as { visible: Ref<boolean> }).visible.value =\n        false\n    })\n  }\n}\n\nnotify.closeAll = closeAll\nnotify._context = null\n\nexport default notify as 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