element-plus/es/components/image/src/image2.mjs.map

A Component Library for Vue 3

{"version":3,"file":"image2.mjs","sources":["../../../../../../packages/components/image/src/image.vue"],"sourcesContent":["<template>\n  <div ref=\"container\" :class=\"[ns.b(), $attrs.class]\" :style=\"containerStyle\">\n    <slot v-if=\"loading\" name=\"placeholder\">\n      <div :class=\"ns.e('placeholder')\" />\n    </slot>\n    <slot v-else-if=\"hasLoadError\" name=\"error\">\n      <div :class=\"ns.e('error')\">{{ t('el.image.error') }}</div>\n    </slot>\n    <img\n      v-else\n      v-bind=\"attrs\"\n      :src=\"src\"\n      :style=\"imageStyle\"\n      :class=\"[ns.e('inner'), preview ? ns.e('preview') : '']\"\n      @click=\"clickHandler\"\n    />\n    <template v-if=\"preview\">\n      <image-viewer\n        v-if=\"showViewer\"\n        :z-index=\"zIndex\"\n        :initial-index=\"imageIndex\"\n        :infinite=\"infinite\"\n        :url-list=\"previewSrcList\"\n        :hide-on-click-modal=\"hideOnClickModal\"\n        :teleported=\"teleported\"\n        :close-on-press-escape=\"closeOnPressEscape\"\n        @close=\"closeViewer\"\n        @switch=\"switchViewer\"\n      >\n        <div v-if=\"$slots.viewer\">\n          <slot name=\"viewer\" />\n        </div>\n      </image-viewer>\n    </template>\n  </div>\n</template>\n\n<script lang=\"ts\" setup>\nimport { computed, nextTick, onMounted, ref, watch } from 'vue'\nimport {\n  isBoolean,\n  isClient,\n  useEventListener,\n  useThrottleFn,\n} from '@vueuse/core'\nimport {\n  useAttrs,\n  useDeprecated,\n  useLocale,\n  useNamespace,\n} from '@element-plus/hooks'\nimport ImageViewer from '@element-plus/components/image-viewer'\nimport {\n  getScrollContainer,\n  isElement,\n  isInContainer,\n  isString,\n} from '@element-plus/utils'\nimport { imageEmits, imageProps } from './image'\n\nimport type { CSSProperties, StyleValue } from 'vue'\n\ndefineOptions({\n  name: 'ElImage',\n})\n\nconst props = defineProps(imageProps)\nconst emit = defineEmits(imageEmits)\n\nlet prevOverflow = ''\n\nuseDeprecated(\n  {\n    scope: 'el-image',\n    from: 'append-to-body',\n    replacement: 'preview-teleported',\n    version: '2.2.0',\n    ref: 'https://element-plus.org/en-US/component/image.html#image-attributess',\n  },\n  computed(() => isBoolean(props.appendToBody))\n)\n\nconst { t } = useLocale()\nconst ns = useNamespace('image')\n\nconst attrs = useAttrs()\nconst hasLoadError = ref(false)\nconst loading = ref(true)\nconst imgWidth = ref(0)\nconst imgHeight = ref(0)\nconst showViewer = ref(false)\nconst container = ref<HTMLElement>()\n\nconst _scrollContainer = ref<HTMLElement | Window>()\nlet stopScrollListener: () => void\nlet stopWheelListener: () => void\n\nconst containerStyle = computed(() => attrs.value.style as StyleValue)\n\nconst imageStyle = computed<CSSProperties>(() => {\n  const { fit } = props\n  if (isClient && fit) {\n    return { objectFit: fit }\n  }\n  return {}\n})\n\nconst preview = computed(() => {\n  const { previewSrcList } = props\n  return Array.isArray(previewSrcList) && previewSrcList.length > 0\n})\n\nconst teleported = computed(() => {\n  return props.appendToBody || props.previewTeleported\n})\n\nconst imageIndex = computed(() => {\n  const { previewSrcList, initialIndex } = props\n  let previewIndex = initialIndex\n  if (initialIndex > previewSrcList.length - 1) {\n    previewIndex = 0\n  }\n  return previewIndex\n})\n\nconst loadImage = () => {\n  if (!isClient) return\n\n  // reset status\n  loading.value = true\n  hasLoadError.value = false\n\n  const img = new Image()\n  const currentImageSrc = props.src\n\n  // load & error callbacks are only responsible for currentImageSrc\n  img.addEventListener('load', (e) => {\n    if (currentImageSrc !== props.src) {\n      return\n    }\n    handleLoad(e, img)\n  })\n  img.addEventListener('error', (e) => {\n    if (currentImageSrc !== props.src) {\n      return\n    }\n    handleError(e)\n  })\n\n  // bind html attrs\n  // so it can behave consistently\n  Object.entries(attrs.value).forEach(([key, value]) => {\n    // avoid onload to be overwritten\n    if (key.toLowerCase() === 'onload') return\n    img.setAttribute(key, value as string)\n  })\n  img.src = currentImageSrc\n}\n\nfunction handleLoad(e: Event, img: HTMLImageElement) {\n  imgWidth.value = img.width\n  imgHeight.value = img.height\n  loading.value = false\n  hasLoadError.value = false\n}\n\nfunction handleError(event: Event) {\n  loading.value = false\n  hasLoadError.value = true\n  emit('error', event)\n}\n\nfunction handleLazyLoad() {\n  if (isInContainer(container.value, _scrollContainer.value)) {\n    loadImage()\n    removeLazyLoadListener()\n  }\n}\n\nconst lazyLoadHandler = useThrottleFn(handleLazyLoad, 200)\n\nasync function addLazyLoadListener() {\n  if (!isClient) return\n\n  await nextTick()\n\n  const { scrollContainer } = props\n  if (isElement(scrollContainer)) {\n    _scrollContainer.value = scrollContainer\n  } else if (isString(scrollContainer) && scrollContainer !== '') {\n    _scrollContainer.value =\n      document.querySelector<HTMLElement>(scrollContainer) ?? undefined\n  } else if (container.value) {\n    _scrollContainer.value = getScrollContainer(container.value)\n  }\n\n  if (_scrollContainer.value) {\n    stopScrollListener = useEventListener(\n      _scrollContainer,\n      'scroll',\n      lazyLoadHandler\n    )\n    setTimeout(() => handleLazyLoad(), 100)\n  }\n}\n\nfunction removeLazyLoadListener() {\n  if (!isClient || !_scrollContainer.value || !lazyLoadHandler) return\n\n  stopScrollListener()\n  _scrollContainer.value = undefined\n}\n\nfunction wheelHandler(e: WheelEvent) {\n  if (!e.ctrlKey) return\n\n  if (e.deltaY < 0) {\n    e.preventDefault()\n    return false\n  } else if (e.deltaY > 0) {\n    e.preventDefault()\n    return false\n  }\n}\n\nfunction clickHandler() {\n  // don't show viewer when preview is false\n  if (!preview.value) return\n\n  stopWheelListener = useEventListener('wheel', wheelHandler, {\n    passive: false,\n  })\n\n  // prevent body scroll\n  prevOverflow = document.body.style.overflow\n  document.body.style.overflow = 'hidden'\n  showViewer.value = true\n}\n\nfunction closeViewer() {\n  stopWheelListener?.()\n  document.body.style.overflow = prevOverflow\n  showViewer.value = false\n  emit('close')\n}\n\nfunction switchViewer(val: number) {\n  emit('switch', val)\n}\n\nwatch(\n  () => props.src,\n  () => {\n    if (props.lazy) {\n      // reset status\n      loading.value = true\n      hasLoadError.value = false\n      removeLazyLoadListener()\n      addLazyLoadListener()\n    } else {\n      loadImage()\n    }\n  }\n)\n\nonMounted(() => {\n  if (props.lazy) {\n    addLazyLoadListener()\n  } else {\n    loadImage()\n  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