80 lines
2.0 KiB
Vue
80 lines
2.0 KiB
Vue
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<script setup>
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import UQRCode from 'uqrcodejs';
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import {onMounted, ref} from 'vue';
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const emits = defineEmits(['handleLongPress']);
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const {bg, invite, member_url} = defineProps({
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bg: {
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type: String,
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default: null
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},
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invite: {
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type: String,
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default: null
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},
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member_url: {
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type: String,
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default: null
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},
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});
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const itemList = [
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{text: '置顶', type: 1},
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{text: '取消', type: 0},
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]
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const CanvasRef = ref();
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const QRRef = ref();
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let canvas = null;
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onMounted(() => {
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const _canvas = CanvasRef.value.$el.children[0];
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const ctx = _canvas.getContext("2d");
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canvas = _canvas;
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draw(ctx, _canvas);
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});
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const draw = (ctx, canvas) => {
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const img = new Image();
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img.crossOrigin = 'Anonymous';
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img.src = bg;
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img.onload = function () {
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ctx.drawImage(img, 0, 0, canvas.width / 3, canvas.height / 3);
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const qr = new UQRCode();
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qr.data = `${member_url}/pages/register/index?invite=${invite}`;
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qr.size = 200;
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qr.margin = 10;
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qr.make()
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const QRRefCanvas = QRRef.value.$el.children[0];
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qr.canvasContext = QRRefCanvas.getContext("2d");
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qr.drawCanvas().then(() => {
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const base64 = QRRefCanvas.toDataURL('image/png');
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const qr_img = new Image();
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qr_img.src = base64;
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qr_img.onload = function () {
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const size = 70;
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const x = 20;
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const y = canvas.height / 3 - 88;
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ctx.drawImage(qr_img, x, y, size, size);
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}
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});
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}
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}
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const handleLongPress = () => {
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emits('handleLongPress', canvas.toDataURL('image/png'));
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}
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</script>
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<template>
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<view class="!size-full relative" @longpress="handleLongPress">
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<canvas class="!absolute !size-[200px] opacity-0" ref="QRRef"></canvas>
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<canvas
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class="!size-full"
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ref="CanvasRef"/>
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</view>
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</template>
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<style scoped lang="scss">
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</style>
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