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uni_modules/lime-qrcode/components/l-qrcode/l-qrcode.uvue
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300
uni_modules/lime-qrcode/components/l-qrcode/l-qrcode.uvue
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<template>
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<!-- #ifndef APP || WEB -->
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<canvas :style="styles" v-if="use2d" type="2d" :canvas-id="canvasId" :id="canvasId"></canvas>
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<canvas :style="styles" v-else :canvas-id="canvasId" :id="canvasId"></canvas>
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<!-- #endif -->
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<!-- #ifdef APP -->
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<view class="l-qrcode" ref="drawableRef" :style="[styles]">
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<image class="l-qrcode__icon" v-if="icon" :src="icon" :style="[iconStyle]"></image>
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</view>
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<!-- #endif -->
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<!-- #ifdef WEB -->
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<view class="l-qrcode" ref="drawableRef" :style="[styles]"></view>
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<!-- #endif -->
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</template>
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<script lang="uts" setup>
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/**
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* QRCode 二维码组件
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* @description 用于生成二维码图形，支持自定义图标和样式配置
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* <br>插件类型：LQrcodeComponentPublicInstance
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* @tutorial https://ext.dcloud.net.cn/plugin?name=lime-qrcode
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*
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* @property {string} value 二维码内容（支持文本/URL等）
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* @property {string} icon 中心图标路径（支持本地/网络路径）
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* @property {number | string} size 二维码尺寸
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* @property {number | string} iconSize 中心图标尺寸
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* @property {number} marginSize 二维码外边距（默认：0）
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* @property {string} color 二维码颜色（默认：#000000）
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* @property {string} bgColor 背景颜色（默认：#ffffff）
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* @property {boolean} bordered 显示边框（默认：false）
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* @property {'L' | 'M' | 'Q' | 'H'} errorLevel 容错等级（默认：'H'）
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* @value L 可恢复7%的数据
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* @value M 可恢复15%的数据
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* @value Q 可恢复25%的数据
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* @value H 可恢复30%的数据
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* @property {boolean} useCanvasToTempFilePath 使用canvas生成临时路径（H5端可能需要）
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* @property {boolean} use2d 启用2D上下文渲染（性能优化，默认：false）
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*/
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import { type PropType, nextTick } from 'vue'
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// #ifndef APP
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import { createImage } from '@/uni_modules/lime-shared/createImage'
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import { getCanvas, isCanvas2d } from './useCanvas'
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import { QRCodeCanvas } from './qrcode.js';
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import { QRCodePropsTypes , ImageSettings } from './type'
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// #endif
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// #ifdef APP-ANDROID || APP-HARMONY
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import { QRCodeCanvas, type QRCodePropsTypes , type ImageSettings } from '@/uni_modules/lime-qrcodegen'
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// #endif
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// #ifdef APP-IOS
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import { QRCodeCanvas, type QRCodePropsTypes , type ImageSettings } from './ios'
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// #endif
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// import { addUnit } from '@/uni_modules/lime-shared/addUnit'
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// import { unitConvert } from '@/uni_modules/lime-shared/unitConvert'
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// import { toBoolean } from '@/uni_modules/lime-shared/toBoolean'
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import { addUnit, unitConvert } from './utils'
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import { LQrcodeFailCallback, LQrcodeCompleteCallback, LQrcodeSuccessCallback} from './type'
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const name = 'l-qrcode'
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const props = defineProps({
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value: {
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type: String
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},
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icon: {
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type: String
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},
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// #ifdef APP-ANDROID
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size: {
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type: Object,
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default: 160
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},
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iconSize: {
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type: Object,
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default: 40
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},
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// #endif
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// #ifndef APP-ANDROID
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size: {
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type: [Number, String],
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default: 160
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},
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iconSize: {
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type: [Number, String],
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default: 40
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},
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// #endif
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marginSize: {
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type: Number,
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default: 0
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},
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color: {
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type: String,
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default: '#000'
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},
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bgColor: {
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type: String,
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default: 'transparent'
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},
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bordered: {
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type: Boolean,
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default: true
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},
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errorLevel: {
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type: String as PropType<'L' | 'M' | 'Q' | 'H'>,
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default: 'M' // 'L' | 'M' | 'Q' | 'H'
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},
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useCanvasToTempFilePath: {
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type: Boolean,
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default: false
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},
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use2d: {
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type: Boolean,
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default: true
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}
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// status: {
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// type: String as PropType<'active'|'expired'|'loading'>,
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// default: 'active' // active | expired | loading
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// }
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})
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const emits = defineEmits(['success'])
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const context = getCurrentInstance();
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const canvasId = `l-qrcode${context!.uid}`
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const styles = computed<Map<string, any>>(():Map<string, any>=>{
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const style = new Map<string, any>()
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const size = addUnit(props.size);
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if(size!=null){
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style.set('width', size)
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style.set('height', size)
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}
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style.set('background', props.bgColor)
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return style
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})
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// #ifdef APP
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const iconStyle = computed<Map<string, any>>(():Map<string, any>=>{
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const style = new Map<string, any>()
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const size = addUnit(props.iconSize);
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// if(size!=null){
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style.set('width', size)
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style.set('height', size)
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// }
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return style
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})
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// #endif
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const drawableRef = ref<UniElement|null>(null);
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// #ifndef APP
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let canvas:HTMLCanvasElement|null = null
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// #endif
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let qrcode:QRCodeCanvas|null = null
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const canvasToTempFilePath = (options: UTSJSONObject)=>{
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const format = options.getString('format') ?? 'png';
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const fail = options.get('fail') as LQrcodeFailCallback | null;
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const complete = options.get('complete') as LQrcodeCompleteCallback | null;
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const success = options.get('success') as LQrcodeSuccessCallback | null;
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// #ifdef APP
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const newOptions = {
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format,
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fail,
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complete,
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success,
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} as TakeSnapshotOptions
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drawableRef.value!.takeSnapshot(newOptions)
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// #endif
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// #ifdef WEB
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success?.({
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tempFilePath: canvas?.toDataURL('image/'+format)
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})
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// #endif
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}
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const render = ()=>{
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const param:QRCodePropsTypes = {
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value: props.value,
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size: unitConvert(props.size),
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fgColor: props.color,
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level: ['L', 'M', 'Q', 'H'].includes(props.errorLevel) ? props.errorLevel : 'M',
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marginSize: props.marginSize,
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includeMargin: props.bordered,
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imageSettings: null,
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} as QRCodePropsTypes
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// #ifdef APP-HARMONY
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param.value = props.value
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param.size = unitConvert(props.size)
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param.fgColor = props.color
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param.level = ['L', 'M', 'Q', 'H'].includes(props.errorLevel) ? props.errorLevel : 'M'
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param.marginSize = props.marginSize
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param.includeMargin = props.bordered
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param.imageSettings = null
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// #endif
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if(props.icon != null){
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// if(toBoolean(props.iconSize) && toBoolean(props.icon)){
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const size = unitConvert(props.iconSize)
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param.imageSettings = {
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src: props.icon,
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width: size,
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height: size,
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excavate: true
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} as ImageSettings
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// #ifdef APP-HARMONY
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param.imageSettings.src = props.icon
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param.imageSettings.width = size
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param.imageSettings.height = size
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param.imageSettings.excavate = true
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// #endif
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}
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qrcode?.render(param)
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if(props.useCanvasToTempFilePath){
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setTimeout(()=>{
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canvasToTempFilePath({
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success: (res: TakeSnapshotSuccess)=>{
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emits('success', res.tempFilePath)
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}
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})
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},100)
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}
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}
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defineExpose({
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canvasToTempFilePath
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})
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onMounted(()=>{
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nextTick(()=>{
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// #ifdef APP
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requestAnimationFrame(()=> {
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drawableRef.value?.getBoundingClientRectAsync()?.then(res => {
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const ctx = drawableRef.value!.getDrawableContext();
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qrcode = new QRCodeCanvas(ctx!)
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watchEffect(()=>{
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render()
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})
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})
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})
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// #endif
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// #ifdef WEB
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canvas = document.createElement('canvas')
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canvas!.style.width = '100%'
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canvas!.style.height = '100%'
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drawableRef.value!.appendChild(canvas!)
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qrcode = new QRCodeCanvas(canvas, {
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pixelRatio: uni.getSystemInfoSync().pixelRatio,
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createImage: () => {
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const image = new Image();
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// @ts-ignore
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image.crossOrigin = 'anonymous';
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return image;
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}
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})
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watchEffect(()=>{
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render()
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})
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// #endif
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// #ifndef APP || WEB
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getCanvas(canvasId, { context }).then(res => {
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canvas = res;
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qrcode = new QRCodeCanvas(res, {
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path2D: false,
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pixelRatio: isCanvas2d && props.use2d ? uni.getSystemInfoSync().pixelRatio : 1,
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createImage
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})
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watchEffect(()=>{
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render()
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})
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})
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// #endif
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})
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})
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onUnmounted(()=>{
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// #ifdef WEB
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canvas?.remove();
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// #endif
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qrcode = null;
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})
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</script>
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<style lang="scss">
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.l-qrcode {
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position: relative;
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background-color: aqua;
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justify-content: center;
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align-items: center;
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&-mask {
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position: absolute;
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// inset: 0;
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// inset-block-start: 0;
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// inset-inline-start: 0;
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z-index: 10;
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display: flex;
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flex-direction: column;
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justify-content: center;
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align-items: center;
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// width: 100%;
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// height: 100%;
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color: rgba(0, 0, 0, 0.88);
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line-height: 1.5714285714285714;
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background: rgba(255, 255, 255, 0.96);
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text-align: center;
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}
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}
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</style>
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