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