image-format.vue
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<template>
<img v-lazy="currentSrc" :alt="alt" v-if="currentLazy" @error="onError">
<img :src="currentSrc" :alt="alt" v-else lazy="" data-src="" @error="onError">
</template>
<script>
import {mapState} from 'vuex';
export default {
name: 'ImageFormat',
props: {
lazy: {
type: Boolean,
default: true
},
src: String,
width: [Number, String],
height: [Number, String],
mode: {
type: [Number, String],
default: 2
},
alt: String,
interlace: Boolean
},
data() {
return {
refresh: false,
currentLazy: this.lazy
};
},
watch: {
src() {
this.currentLazy = false;
},
lazy(val) {
this.currentLazy = val;
}
},
computed: {
...mapState(['yoho']),
currentSrc() {
let src = this.src;
let splits = (this.src || '').split('?');
const imgName = splits[0] || '';
let query = splits[1] || '';
if (/imageView/.test(query)) {
if (!/interlace/.test(query)) {
src = `${src}/interlace/1`;
}
if (!/webp/.test(query) && this.yoho.window.supportWebp) {
src = `${src}/format/webp`;
} else if (!/format/.test(query) && /\.png$/i.test(imgName)) {
src = `${src}/format/jpg`;
}
}
return (src || '')
.replace('http://', '//')
.replace('{mode}', this.mode)
.replace('{width}', this.width)
.replace('{height}', this.height);
}
},
methods: {
onError() {
this.$emit('error');
}
}
};
</script>