会员权益
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295
pages/component/activity/certificate.vue
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295
pages/component/activity/certificate.vue
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<!-- +----------------------------------------------------------------------
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| 麦沃德科技赋能开发者，助力商协会发展
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+----------------------------------------------------------------------
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| Copyright (c) 2017～2024 www.maiwd.cn All rights reserved.
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+----------------------------------------------------------------------
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| 沃德商协会系统并不是自由软件，不加密，并不代表开源，未经许可不可自由转售和商用
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+----------------------------------------------------------------------
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| Author: MY WORLD Team <bd@maiwd.cn> www.maiwd.cn
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+----------------------------------------------------------------------
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| 组件-参会证书 开发者: 麦沃德科技-半夏
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+---------------------------------------------------------------------- -->
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<template>
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<view class="component-activity-certificate">
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<!-- 参会证书 -->
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<canvas class="poster-canvas" :style="{width: posterWidth + 'px', height: posterHeight + 'px'}" canvas-id="myCanvas" id="myCanvas"></canvas>
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<!-- 参会证书模态框 -->
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<uni-popup ref="popupModal" type="center" @change="onChange">
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<view class="poster-popup flex-direction-column align-items-center" :style="{'--theme-color': themeColor, paddingTop: titleBarHeight + 'px'}">
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<view class="popup-close" @click="onClose()">
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<image class="icon" src="/static/closePopup.png" mode="aspectFit"></image>
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</view>
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<scroll-view scroll-y class="popup-content flex justify-content-center">
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<image class="image" :src="posterPath" mode="widthFix"></image>
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</scroll-view>
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<!-- #ifdef MP-WEIXIN -->
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<view class="popup-btn" @click="saveImage">保存相册</view>
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<!-- #endif -->
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<!-- #ifdef H5 -->
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<view class="popup-btn">长按图片保存相册</view>
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<!-- #endif -->
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</view>
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</uni-popup>
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</view>
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</template>
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<script>
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import { mapState } from "vuex"
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import { loadImage, createPoster, canvasToTempFilePath } from "@/common/poster.js";
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export default {
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name: "activityCertificate",
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data() {
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return {
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// 标题栏高度
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titleBarHeight: 0,
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// 参会证书数据
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posterInfo: {},
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// 参会证书宽度
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posterWidth: 0,
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// 参会证书高度
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posterHeight: 0,
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// 图片资源是否准备完成
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posterReady: false,
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// 参会证书背景图片
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posterBackground: "",
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// 参会证书图片路径
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posterPath: "",
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}
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},
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computed: {
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...mapState({
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themeColor: state => state.app.themeColor,
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})
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},
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mounted() {
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// #ifdef MP-WEIXIN
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let statusBarHeight = uni.getSystemInfoSync().statusBarHeight
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let menuButtonInfo = uni.getMenuButtonBoundingClientRect()
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this.titleBarHeight = statusBarHeight + (menuButtonInfo.top - statusBarHeight) * 2 + menuButtonInfo.height
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// #endif
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},
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methods: {
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// 获取参会证书
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getPoster(activityId, applyId) {
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uni.showLoading({
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title: "加载中",
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mask: true
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})
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this.$util.request("activity.certificate", {
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id: activityId,
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apply_id: applyId,
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}).then(res => {
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if (res.code == 1) {
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this.posterInfo = res.data
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this.posterWidth = res.data.data.bg.width
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this.posterHeight = res.data.data.bg.height
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this.$nextTick(() => {
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this.showNucleus()
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})
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} else {
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uni.showToast({
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title: res.msg,
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icon: 'none'
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})
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}
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}).catch(error => {
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console.error('获取参会证书 ', error)
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})
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},
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// 获取图片资源
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async showNucleus() {
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this.loadingResources().then((state) => {
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// 状态为 true 表示加载完成
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if (state) {
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this.posterReady = true
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this.createImage()
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}
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});
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},
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// 加载图片资源
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async loadingResources() {
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this.posterBackground = await loadImage(this.posterInfo.data.bg.img);
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return true;
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},
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// 生成参会证书
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async createImage() {
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if (!this.posterReady) {
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uni.hideLoading()
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uni.showToast({
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title: '参会证书图片资源加载失败',
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icon: 'none'
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})
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return
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};
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// 获取上下文对象
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const ctx = uni.createCanvasContext("myCanvas", this);
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// 创建参会证书
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let posterData = [{
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type: "image",
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url: this.posterBackground,
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config: {
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x: 0,
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y: 0,
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w: parseFloat(this.posterWidth),
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h: parseFloat(this.posterHeight),
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},
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}]
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this.posterInfo.data.data.forEach((item) => {
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if (item.type == "text") {
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let content = ""
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if (item.item == "activity_name") content = this.posterInfo.activity_name || ""
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else if (item.item == "name") content = this.posterInfo.participant || ""
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else if (item.item == "time") content = this.posterInfo.time || ""
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let itemX = 0
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if (item.textAlign == "center") itemX = parseFloat(item.left) + parseFloat(item.width) / 2
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else if (item.textAlign == "right") itemX = parseFloat(item.left) + parseFloat(item.width)
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else itemX = parseFloat(item.left)
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let itemFont = "10px sans-serif"
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if (item.fontStyle == 2) {
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itemFont = `italic ${item.size} sans-serif`
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} else if (item.fontStyle == 3) {
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itemFont = `bold ${item.size} sans-serif`
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} else if (item.fontStyle == 4) {
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itemFont = `italic bold ${item.size} sans-serif`
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} else {
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itemFont = `${item.size} sans-serif`
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}
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posterData.push({
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type: "text",
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text: content || "",
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config: {
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x: itemX,
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y: parseFloat(item.top),
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color: item.color,
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font: itemFont,
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textAlign: item.textAlign,
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maxWidth: parseFloat(item.width),
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lineHeight: parseInt(item.height),
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isVerticalCenter: true
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},
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})
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}
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})
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await createPoster(ctx, posterData)
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const imagePath = await canvasToTempFilePath("myCanvas", this);
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this.posterPath = imagePath;
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this.$refs.popupModal.open()
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uni.hideLoading()
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},
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// 保存参会证书
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saveImage() {
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uni.authorize({
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scope: 'scope.writePhotosAlbum',
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success: () => {
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uni.getImageInfo({
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src: this.posterPath,
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success: (img) => {
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uni.saveImageToPhotosAlbum({
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filePath: img.path,
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success: () => {
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uni.showToast({
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title: "保存成功",
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icon: "success",
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});
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},
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fail: (err) => {
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console.error(err);
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},
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});
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},
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fail: (err) => {
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console.error(err)
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}
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});
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},
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fail: () => {
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uni.showModal({
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title: '图片保存失败',
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content: '请确认是否已开启授权',
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confirmText: '开启授权',
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confirmColor: this.themeColor,
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success: (res) => {
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if (res.confirm) {
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uni.openSetting({
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success: (setting) => {
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if (setting.authSetting["scope.writePhotosAlbum"]) {
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uni.showToast({
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title: '授权成功，请重新保存',
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icon: "none"
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});
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} else {
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uni.showToast({
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title: '请确定已打开保存权限',
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icon: "none"
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});
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}
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}
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})
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}
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}
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})
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}
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})
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},
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// 关闭弹窗
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onClose() {
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this.$refs.popupModal.close()
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},
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// 改变页面滚动状态
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onChange(e) {
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this.$emit("onChange", e.show)
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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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.component-activity-certificate {
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position: relative;
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z-index: 999;
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.poster-canvas {
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position: fixed;
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top: 100vw;
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left: 100vh;
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z-index: -1;
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}
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.poster-popup {
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.popup-close {
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width: 100%;
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margin-top: -112rpx;
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margin-bottom: 32rpx;
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display: flex;
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justify-content: flex-end;
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.icon {
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width: 80rpx;
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height: 80rpx;
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}
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}
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.popup-content {
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max-height: 55vh;
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.image {
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width: 92vw;
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height: auto;
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}
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}
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.popup-btn {
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margin-top: 32rpx;
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width: 336rpx;
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font-size: 28rpx;
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line-height: 40rpx;
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padding: 26rpx 32rpx;
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border-radius: 16rpx;
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color: #FFFFFF;
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background: var(--theme-color);
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text-align: center;
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}
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}
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}
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</style>
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