50 lines
791 B
Vue
50 lines
791 B
Vue
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<template>
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<canvas ref="qrcode"></canvas>
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</template>
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<script>
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import QRCode from 'qrcode';
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export default {
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name: 'QRCode',
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props: {
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content: {
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type: String,
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required: true
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},
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size: {
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type: Number,
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default: 90
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}
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},
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data() {
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return {
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qrcode: null
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}
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},
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watch: {
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content: {
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handler(newVal, oldVal) {
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if (newVal !== oldVal) {
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this.generateQRCode();
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}
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},
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immediate: true
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}
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},
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mounted() {
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this.generateQRCode();
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},
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methods: {
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generateQRCode() {
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const el = this.$refs.qrcode;
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const content = this.content;
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QRCode.toCanvas(el, content, {
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width: this.size,
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height: this.size,
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margin: 0
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});
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}
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}
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}
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</script>
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