101 lines
1.5 KiB
Vue
101 lines
1.5 KiB
Vue
<template>
|
|
<div class="xubzgfgb" :class="{ cover }" :title="title">
|
|
<canvas ref="canvas" :width="size" :height="size" :title="title" v-if="!loaded"/>
|
|
<img v-if="src" :src="src" :title="title" :alt="alt" @load="onLoad"/>
|
|
</div>
|
|
</template>
|
|
|
|
<script lang="ts">
|
|
import { defineComponent } from 'vue';
|
|
import { decode } from 'blurhash';
|
|
|
|
export default defineComponent({
|
|
props: {
|
|
src: {
|
|
type: String,
|
|
required: false,
|
|
default: null
|
|
},
|
|
hash: {
|
|
type: String,
|
|
required: true
|
|
},
|
|
alt: {
|
|
type: String,
|
|
required: false,
|
|
default: '',
|
|
},
|
|
title: {
|
|
type: String,
|
|
required: false,
|
|
default: null,
|
|
},
|
|
size: {
|
|
type: Number,
|
|
required: false,
|
|
default: 64
|
|
},
|
|
cover: {
|
|
type: Boolean,
|
|
required: false,
|
|
default: true,
|
|
}
|
|
},
|
|
|
|
data() {
|
|
return {
|
|
loaded: false,
|
|
};
|
|
},
|
|
|
|
mounted() {
|
|
this.draw();
|
|
},
|
|
|
|
methods: {
|
|
draw() {
|
|
if (this.hash == null) return;
|
|
const pixels = decode(this.hash, this.size, this.size);
|
|
const ctx = (this.$refs.canvas as HTMLCanvasElement).getContext('2d');
|
|
const imageData = ctx!.createImageData(this.size, this.size);
|
|
imageData.data.set(pixels);
|
|
ctx!.putImageData(imageData, 0, 0);
|
|
},
|
|
|
|
onLoad() {
|
|
this.loaded = true;
|
|
}
|
|
}
|
|
});
|
|
</script>
|
|
|
|
<style lang="scss" scoped>
|
|
.xubzgfgb {
|
|
position: relative;
|
|
width: 100%;
|
|
height: 100%;
|
|
|
|
> canvas,
|
|
> img {
|
|
display: block;
|
|
width: 100%;
|
|
height: 100%;
|
|
}
|
|
|
|
> canvas {
|
|
position: absolute;
|
|
object-fit: cover;
|
|
}
|
|
|
|
> img {
|
|
object-fit: contain;
|
|
}
|
|
|
|
&.cover {
|
|
> img {
|
|
object-fit: cover;
|
|
}
|
|
}
|
|
}
|
|
</style>
|