## Image Además de las características nativas de img, soporte de carga perezosa, marcador de posición personalizado y fallo de carga, etc. ### Uso básico :::demo Indica cómo se debe cambiar el tamaño de la imagen para que se ajuste a su contenedor por ajuste, igual que el ajuste de objeto nativo. [object-fit](https://developer.mozilla.org/es/docs/Web/CSS/object-fit)。 ```html <div class="demo-image"> <div class="block" v-for="fit in fits" :key="fit"> <span class="demonstration">{{ fit }}</span> <el-image style="width: 100px; height: 100px" :src="url" :fit="fit"></el-image> </div> </div> <script> export default { data() { return { fits: ['fill', 'contain', 'cover', 'none', 'scale-down'], url: 'https://fuss10.elemecdn.com/e/5d/4a731a90594a4af544c0c25941171jpeg.jpeg' } } } </script> <!-- <setup> import { defineComponent, reactive, toRefs } from 'vue'; export default defineComponent({ setup() { const state = reactive({ fits: ['fill', 'contain', 'cover', 'none', 'scale-down'], url: 'https://fuss10.elemecdn.com/e/5d/4a731a90594a4af544c0c25941171jpeg.jpeg' }); return { ...toRefs(state), }; }, }); </setup> --> ``` ::: ### Placeholder :::demo Personalice el placeholder del contenido mientras la imagen aun no ha sido cargada vía `slot = placeholder` ```html <div class="demo-image__placeholder"> <div class="block"> <span class="demonstration">Default</span> <el-image :src="src"></el-image> </div> <div class="block"> <span class="demonstration">Custom</span> <el-image :src="src"> <template #placeholder> <div class="image-slot"> Loading<span class="dot">...</span> </div> </template> </el-image> </div> </div> <script> export default { data() { return { src: 'https://cube.elemecdn.com/6/94/4d3ea53c084bad6931a56d5158a48jpeg.jpeg' } } } </script> <!-- <setup> import { defineComponent, ref } from 'vue'; export default defineComponent({ setup() { const src = ref('https://cube.elemecdn.com/6/94/4d3ea53c084bad6931a56d5158a48jpeg.jpeg'); return { src, }; }, }); </setup> --> ``` ::: ### Fallo de carga :::demo Personalice el contenido cuando ocurra algún error al cargar la imagen vía `slot = error` ```html <div class="demo-image__error"> <div class="block"> <span class="demonstration">Default</span> <el-image></el-image> </div> <div class="block"> <span class="demonstration">Custom</span> <el-image> <template #error> <div class="image-slot"> <i class="el-icon-picture-outline"></i> </div> </template> </el-image> </div> </div> ``` ::: ### Lazy Load :::demo Use lazy load vía `lazy = true`. La imagen se cargará hasta que se desplace a la vista cuando esté configurada. Puede indicar el contenedor de scroll que añade el oyente de scroll vía `scroll-container`. Si no está definido, será el contenedor padre más cercano cuya propiedad overflow es auto o scroll. ```html <div class="demo-image__lazy"> <el-image v-for="url in urls" :key="url" :src="url" lazy></el-image> </div> <script> export default { data() { return { urls: [ 'https://fuss10.elemecdn.com/a/3f/3302e58f9a181d2509f3dc0fa68b0jpeg.jpeg', 'https://fuss10.elemecdn.com/1/34/19aa98b1fcb2781c4fba33d850549jpeg.jpeg', 'https://fuss10.elemecdn.com/0/6f/e35ff375812e6b0020b6b4e8f9583jpeg.jpeg', 'https://fuss10.elemecdn.com/9/bb/e27858e973f5d7d3904835f46abbdjpeg.jpeg', 'https://fuss10.elemecdn.com/d/e6/c4d93a3805b3ce3f323f7974e6f78jpeg.jpeg', 'https://fuss10.elemecdn.com/3/28/bbf893f792f03a54408b3b7a7ebf0jpeg.jpeg', 'https://fuss10.elemecdn.com/2/11/6535bcfb26e4c79b48ddde44f4b6fjpeg.jpeg' ] } } } </script> <!-- <setup> import { defineComponent, ref } from 'vue'; export default defineComponent({ setup() { const urls = ref([ 'https://fuss10.elemecdn.com/a/3f/3302e58f9a181d2509f3dc0fa68b0jpeg.jpeg', 'https://fuss10.elemecdn.com/1/34/19aa98b1fcb2781c4fba33d850549jpeg.jpeg', 'https://fuss10.elemecdn.com/0/6f/e35ff375812e6b0020b6b4e8f9583jpeg.jpeg', 'https://fuss10.elemecdn.com/9/bb/e27858e973f5d7d3904835f46abbdjpeg.jpeg', 'https://fuss10.elemecdn.com/d/e6/c4d93a3805b3ce3f323f7974e6f78jpeg.jpeg', 'https://fuss10.elemecdn.com/3/28/bbf893f792f03a54408b3b7a7ebf0jpeg.jpeg', 'https://fuss10.elemecdn.com/2/11/6535bcfb26e4c79b48ddde44f4b6fjpeg.jpeg', ]); return { urls, }; }, }); </setup> --> ``` ::: ### Vista previa de la imagen :::demo permitir una vista previa grande de la imagen configurando la prop `previewSrcList`. ```html <div class="demo-image__preview"> <el-image style="width: 100px; height: 100px" :src="url" :preview-src-list="srcList"> </el-image> </div> <script> export default { data() { return { url: 'https://fuss10.elemecdn.com/e/5d/4a731a90594a4af544c0c25941171jpeg.jpeg', srcList: [ 'https://fuss10.elemecdn.com/8/27/f01c15bb73e1ef3793e64e6b7bbccjpeg.jpeg', 'https://fuss10.elemecdn.com/1/8e/aeffeb4de74e2fde4bd74fc7b4486jpeg.jpeg' ] } } } </script> <!-- <setup> import { defineComponent, ref } from 'vue'; export default defineComponent({ setup() { const url = ref('https://fuss10.elemecdn.com/e/5d/4a731a90594a4af544c0c25941171jpeg.jpeg'); const srcList = ref([ 'https://fuss10.elemecdn.com/8/27/f01c15bb73e1ef3793e64e6b7bbccjpeg.jpeg', 'https://fuss10.elemecdn.com/1/8e/aeffeb4de74e2fde4bd74fc7b4486jpeg.jpeg', ]); return { url, srcList, }; }, }); </setup> --> ``` ::: ### Image Atributos | Atributo | Descripción | Tipo | Valores aceptados | Por defecto | |---------- |-------- |---------- |------------- |-------- | | alt | alt nativo | string | - | - | | fit | Indica como la imagen debe adaptarse al contenedor, lo mismo que [object-fit](https://developer.mozilla.org/es/docs/Web/CSS/object-fit) | string | fill / contain / cover / none / scale-down | - | | hide-on-click-modal (needs translation) | When enabling preview, use this flag to control whether clicking on backdrop can exit preview mode | boolean | true / false | false | | lazy | si se usara lazy load | boolean | — | false | | preview-src-list | permitir una vista previa grande de la imagen | Array | — | - | | referrer-policy | referrerPolicy nativo | string | - | - | | src | origen de la imagen, igual que en nativo | string | — | - | | scroll-container | El contenedor para añadir el scroll listener cuando se utiliza lazy load | string / HTMLElement | — | El contenedor padre más cercano cuya propiedad de desbordamiento es auto o scroll | | z-index | establecer el z-index de la vista previa de la imagen | Number | — | 2000 | | append-to-body | whether to append image itself to body. A nested parent element attribute transform should have this attribute set to `true` | boolean | — | false | ### Image Eventos | Nombre del evento | Descripción | Parámetros | |---------- |-------- |---------- | | load | Igual que el load nativo | (e: Event) | | error | Igual que el error nativo | (e: Error) | ### Image Slots | Nombre del slot | Descripción | |---------|-------------| | placeholder | Se activa cuando la imagen se carga | | error | Se activa cuando la carga de la imagen falla | ### ImageViewer Atributos | Attribute | Description | Type | Acceptable Value | Default | |---------- |-------- |---------- |------------- |-------- | | url-list | Preview link list | Array\<string\> | - | [] | | z-index | Preview backdrop z-index | number / string | int / string\<int\> | 2000 | | initial-index | The initial preview image index, less than or equal to the length of `url-list` | number | int | 0 | | infinite | Whether preview is infinite | boolean | true / false | true | | hide-on-click-modal | Whether user can emit close event when clicking backdrop | boolean | true / false | false | ### ImageViewer Eventos | Event name | Description | Callback parameter | |---------- |-------- |---------- | | close | Emitted when clicking on `X` button or when `hide-on-click-modal` enabled clicking on backdrop | None | | switch | When switching images | `(val: number)` switching target index |