Created
March 16, 2019 16:04
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Vue Wrapper for Imgix
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<template> | |
<figure | |
class="eg-image relative" | |
@clicks="clickTransfer()" | |
> | |
<div | |
:class="[bgColorClass, { 'h-full w-full': background, rounded, 'skeleton': showSkeleton}]" | |
:style="[presized ? styleObject : '']" | |
> | |
<no-ssr> | |
<div | |
v-if="background && !imageBroken" | |
ref="imageContainer" | |
:data-bgset="sources" | |
:class="{'w-full absolute pin-t pin-r pin-b pin-l max-h-full': presized, rounded, imageClass}" | |
:style="{ backgroundPosition: bgPosition }" | |
data-sizes="auto" | |
class="lazyload bg-no-repeat bg-cover h-full" | |
@error="imageLoadOnError" | |
> | |
<slot v-if="image" /> | |
</div> | |
<img | |
v-if="!background && !imageBroken" | |
ref="imageContainer" | |
:alt="alt || 'image'" | |
:data-srcset="sources" | |
:class="{'w-full absolute pin-t pin-r pin-b pin-l max-h-full': presized, rounded, imageClass}" | |
data-sizes="auto" | |
class="lazyload block" | |
@error="imageLoadOnError" | |
> | |
</no-ssr> | |
</div> | |
<figcaption | |
v-if="caption" | |
class="text-sm py-1" | |
v-html="caption" | |
/> | |
</figure> | |
</template> | |
<script> | |
/** | |
* Create an Imageblock with responsive Images. Uses Imgix to load the Images | |
*/ | |
export default { | |
name: 'EGImage', | |
props: { | |
baseUrl: { | |
type: String, | |
default: process.env.imgixUrl | |
}, | |
fit: { | |
type: String, | |
default: 'crop' // clamp, crop, max | |
}, | |
sizes: { | |
type: Array, | |
default: () => [2000, 1500, 1000, 600, 320] | |
}, | |
background: { | |
type: Boolean, | |
default: false | |
}, | |
bgPosition: { | |
type: String, | |
default: '50% 50%' | |
}, | |
bgColorClass: { | |
type: String, | |
default: 'bg-grey-medium-darker' | |
}, | |
aspectRatio: { | |
type: Number, | |
default: 0.53 | |
}, | |
params: { | |
type: String, | |
default: '' | |
}, | |
presized: { | |
type: Boolean, | |
default: true | |
}, | |
actualLanguage: { | |
type: String, | |
default: 'de' | |
}, | |
image: { | |
required: true, | |
type: [String, Boolean] | |
}, | |
alt: { | |
type: String, | |
default: '' | |
}, | |
caption: { | |
type: String, | |
default: '' | |
}, | |
rounded: { | |
type: Boolean, | |
default: false | |
}, | |
imageClass: { | |
type: String, | |
default: '' | |
} | |
}, | |
data () { | |
return { | |
styleObject: { | |
height: '0', | |
position: 'relative', | |
overflow: 'hidden', | |
paddingTop: `${this.aspectRatio * 100}%` | |
}, | |
imageBroken: false | |
} | |
}, | |
computed: { | |
showSkeleton () { | |
return !this.image | |
}, | |
sources () { | |
if (!this.image) { | |
this.imageLoadOnError() | |
return [] | |
} | |
const buildUrl = (width, ar) => { | |
const basePath = this.image.startsWith('http') ? this.image : this.baseUrl + this.image | |
return `${basePath}?fit=${this.fit}&w=${width}&h=${width * ar}${this.params || ''}&auto=compress,format?q=85` | |
} | |
const generateImageList = (sizes, ar) => { | |
return sizes.reduce((imagelist, size) => { | |
imagelist += `${buildUrl(size, ar)} ${size}w, ` | |
return imagelist | |
}, '').slice(0, -2) | |
} | |
// Build the whole Image Source Block | |
if (typeof this.sizes[0] === 'object') { | |
if (this.background) { | |
return this.sizes.reduce((response, val) => { | |
response += `${generateImageList(val.sizes, val.ar)} ${ | |
val.maxWidth ? `[(max-width: ${val.maxWidth}px)] | ` : '' | |
}` | |
return response | |
}, '') | |
} | |
return generateImageList(this.sizes[0].sizes, this.aspectRatio) | |
} | |
return generateImageList(this.sizes, this.aspectRatio) | |
} | |
}, | |
mounted () { | |
this.$el.addEventListener('lazyloaded', (e) => { | |
this.$emit('finishLoad', true) | |
}) | |
}, | |
destroyed () { | |
this.$el.removeEventListener('lazyloaded', {}) | |
}, | |
methods: { | |
clickTransfer () { | |
this.$emit('clickTransfer', true) | |
}, | |
imageLoadOnError () { | |
this.imageBroken = !this.imageBroken | |
} | |
} | |
} | |
</script> |
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