73 lines
1.6 KiB
JavaScript
73 lines
1.6 KiB
JavaScript
const StillImage = {
|
|
props: [
|
|
'src',
|
|
'referrerpolicy',
|
|
'mimetype',
|
|
'imageLoadError',
|
|
'imageLoadHandler',
|
|
'alt',
|
|
'height',
|
|
'width',
|
|
'dataSrc',
|
|
'loading'
|
|
],
|
|
data () {
|
|
return {
|
|
// for lazy loading, see loadLazy()
|
|
realSrc: this.src,
|
|
stopGifs: this.$store.getters.mergedConfig.stopGifs
|
|
}
|
|
},
|
|
computed: {
|
|
animated () {
|
|
if (!this.realSrc) {
|
|
return false
|
|
}
|
|
|
|
return this.stopGifs && (this.mimetype === 'image/gif' || this.realSrc.endsWith('.gif'))
|
|
},
|
|
style () {
|
|
const appendPx = (str) => /\d$/.test(str) ? str + 'px' : str
|
|
return {
|
|
height: this.height ? appendPx(this.height) : null,
|
|
width: this.width ? appendPx(this.width) : null
|
|
}
|
|
}
|
|
},
|
|
methods: {
|
|
loadLazy () {
|
|
if (this.dataSrc) {
|
|
this.realSrc = this.dataSrc
|
|
}
|
|
},
|
|
onLoad () {
|
|
if (!this.realSrc) {
|
|
return
|
|
}
|
|
const image = this.$refs.src
|
|
if (!image) return
|
|
this.imageLoadHandler && this.imageLoadHandler(image)
|
|
const canvas = this.$refs.canvas
|
|
if (!canvas) return
|
|
const width = image.naturalWidth
|
|
const height = image.naturalHeight
|
|
canvas.width = width
|
|
canvas.height = height
|
|
canvas.getContext('2d').drawImage(image, 0, 0, width, height)
|
|
},
|
|
onError () {
|
|
this.imageLoadError && this.imageLoadError()
|
|
}
|
|
},
|
|
watch: {
|
|
src () {
|
|
this.realSrc = this.src
|
|
},
|
|
dataSrc () {
|
|
this.$el.removeAttribute('data-loaded')
|
|
}
|
|
}
|
|
}
|
|
|
|
export default StillImage
|