fix(qrcode): Fix the problem that the QR code cannot be dynamically generated (#974)

* fix: Fix the problem that the QR code cannot be dynamically generated

* Fix the problem that the size of the QR code is automatically changed when dynamically generated
This commit is contained in:
江麻妞 2021-07-25 09:01:09 +08:00 committed by GitHub
parent 14fb21d0b7
commit fe4eae3714
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2 changed files with 20 additions and 7 deletions

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@ -4,7 +4,7 @@
</div>
</template>
<script lang="ts">
import { defineComponent, watchEffect, PropType, ref, unref } from 'vue';
import { defineComponent, watch, PropType, ref, unref } from 'vue';
import { toCanvas, QRCodeRenderersOptions, LogoType } from './qrcodePlus';
import { toDataURL } from 'qrcode';
import { downloadByUrl } from '/@/utils/file/download';
@ -93,11 +93,16 @@
});
}
watchEffect(() => {
setTimeout(() => {
createQrcode();
}, 30);
});
//
watch(
props,
() => {
createQrcode()
},
{
deep: true,
}
)
return { wrapRef, download };
},

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@ -1,7 +1,15 @@
import { toCanvas } from 'qrcode';
import type { QRCodeRenderersOptions } from 'qrcode';
import { RenderQrCodeParams, ContentType } from './typing';
export const renderQrCode = ({ canvas, content, width = 0, options = {} }: RenderQrCodeParams) => {
import { cloneDeep } from 'lodash-es';
export const renderQrCode = ({
canvas,
content,
width = 0,
options: params = {}
}: RenderQrCodeParams) => {
const options = cloneDeep(params)
// 容错率,默认对内容少的二维码采用高容错率,内容多的二维码采用低容错率
options.errorCorrectionLevel = options.errorCorrectionLevel || getErrorCorrectionLevel(content);