forked from angelo/web-retail-h5
533 lines
13 KiB
Vue
533 lines
13 KiB
Vue
<template>
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<view
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class="share-page"
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style="display: flex; flex-direction: column; height: 100vh"
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>
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<view id="shareContainer" class="share-container">
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<!-- 微信环境：只有在未生成分享图时才显示原始内容 -->
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<template v-if="!isWechat || (isWechat && !generatedImageUrl)">
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<!-- 背景图片，替代CSS background -->
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<img
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class="share-bg-image"
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src="/static/images/share-bg.jpg"
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mode="scaleToFill"
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crossorigin="anonymous"
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@load="onBackgroundImageLoad"
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@error="onBackgroundImageError"
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/>
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<view class="share-wrapper">
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<view class="portal-frame" :class="{ 'is-loaded': isLoaded }">
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<view class="qr-code-outer">
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<img
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class="qr-code"
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:src="qrCodeImage"
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mode="aspectFit"
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v-if="qrCodeImage"
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/>
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<view v-else class="qr-code-placeholder">
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<view class="loader"></view>
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</view>
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</view>
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<div
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style="
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font-size: 26rpx;
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color: #fff;
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font-weight: bold;
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margin-top: 10rpx;
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text-align: center;
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display: flex;
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align-items: center;
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justify-content: center;
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"
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>
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{{ desensitization(userInfo.memberCode) }}
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</div>
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<div v-if="!isWechat" class="share-button" @click="sharePage">
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保存图片并分享
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</div>
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<img
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v-if="isWechat"
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class="share-btn"
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style="margin-top: 50rpx"
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src="/static/images/share-btn.svg"
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mode="scaleToFill"
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/>
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</view>
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<!-- <image
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class="share-bg-logo"
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src="/static/images/share-logo.png"
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mode="scaleToFill"
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></image> -->
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</view>
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</template>
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<view
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class="wechat-fullscreen-overlay"
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v-show="isWechat && generatedImageUrl"
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@click="closeFullscreenImage"
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>
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<image
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class="fullscreen-image"
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:src="generatedImageUrl"
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mode="scaleToFill"
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@load="onGeneratedImageLoad"
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@error="onGeneratedImageError"
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@click.stop=""
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></image>
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</view>
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</view>
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<cl-tabbar class="tabbar" :current="2" />
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</view>
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</template>
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<script>
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import html2canvas from 'html2canvas'
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import { getShareCode } from '@/config/share'
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import clTabbar from '@/components/cl-tabbar.vue'
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export default {
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name: 'ShareQRCode',
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components: {
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'cl-tabbar': clTabbar,
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},
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data() {
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return {
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qrCodeImage: '',
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// Set canvas dimensions. It's better to get device screen width for this.
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canvasWidth: 375,
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canvasHeight: 800,
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isLoaded: false,
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shareButtonShow: true,
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isWechat: false, // 是否微信环境
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generatedImageUrl: '', // 生成的图片URL，用于微信长按保存
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backgroundImageLoaded: false, // 背景图片是否加载完成
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userInfo: uni.getStorageSync('User'),
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}
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},
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onLoad() {
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this.checkWechatEnvironment()
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this.handleGetShareCode()
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// Get screen width to set canvas width dynamically
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uni.getSystemInfo({
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success: res => {
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this.canvasWidth = res.windowWidth
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this.canvasHeight = res.windowHeight
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},
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})
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},
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onReady() {
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// Use a short timeout to ensure the initial render is complete before animation
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setTimeout(() => {
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this.isLoaded = true
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}, 100)
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},
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methods: {
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desensitization(str) {
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if (!str) return ''
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if (str.length <= 8) return str.slice(0, 4) + '****'
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const len = str.length - 6
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const placeholder = '*'.repeat(len)
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return str.slice(0, 4) + placeholder + str.slice(-2)
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},
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// 检测微信环境
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checkWechatEnvironment() {
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const ua = navigator.userAgent.toLowerCase()
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this.isWechat = ua.includes('micromessenger')
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console.log('微信环境检测:', this.isWechat)
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},
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handleGetShareCode() {
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// Don't show loading toast, use the placeholder loader instead
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// uni.showLoading({ title: '加载中...' })
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getShareCode()
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.then(res => {
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// The screenshot shows the base64 string is in data.datStr
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if (res.code === 200 && res.data && res.data.dataStr) {
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this.qrCodeImage = 'data:image/png;base64,' + res.data.dataStr
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this.$nextTick(() => {
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if (this.isWechat) {
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this.sharePage()
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}
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})
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} else {
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uni.showToast({
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title: '获取分享码失败',
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icon: 'none',
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})
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}
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})
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.catch(err => {
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console.error('getShareCode error:', err)
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uni.showToast({
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title: '网络错误，请稍后再试',
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icon: 'none',
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})
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})
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},
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async sharePage() {
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if (!this.qrCodeImage) {
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uni.showToast({
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title: '二维码尚未生成',
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icon: 'none',
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})
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return
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}
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// 统一使用html2canvas生成图片
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uni.showLoading({ title: '加载中...' })
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try {
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// 隐藏按钮，等待DOM更新
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this.shareButtonShow = false
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await this.$nextTick()
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// 使用html2canvas截取页面
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await this.capturePageWithHtml2Canvas()
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} catch (error) {
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uni.hideLoading()
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uni.showToast({ title: '图片生成失败，请稍后重试', icon: 'none' })
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console.error('sharePage error:', error)
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} finally {
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// 恢复按钮显示
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this.shareButtonShow = true
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}
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},
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// 生成的图片加载成功
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onGeneratedImageLoad() {
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console.log('生成的图片加载成功')
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},
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// 生成的图片加载失败
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onGeneratedImageError(e) {
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console.error('生成的图片加载失败:', e)
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uni.showToast({
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title: '图片显示失败',
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icon: 'none',
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})
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},
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// 关闭全屏图片
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closeFullscreenImage() {
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this.generatedImageUrl = ''
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console.log('关闭全屏图片')
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},
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// 背景图片加载成功
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onBackgroundImageLoad() {
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this.backgroundImageLoaded = true
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console.log('背景图片加载成功')
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},
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// 背景图片加载失败
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onBackgroundImageError(e) {
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console.error('背景图片加载失败:', e)
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},
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// 使用html2canvas截取整个页面
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async capturePageWithHtml2Canvas() {
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console.log('开始使用html2canvas截取页面')
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return new Promise((resolve, reject) => {
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// 确保所有图片都已加载完成
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const waitForImages = () => {
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if (!this.backgroundImageLoaded || !this.qrCodeImage) {
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setTimeout(waitForImages, 100)
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return
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}
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// 额外等待确保渲染完成
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setTimeout(() => {
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const element = document.getElementById('shareContainer')
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if (!element) {
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reject(new Error('找不到页面容器'))
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return
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}
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console.log(
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'开始html2canvas截取，容器尺寸:',
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element.offsetWidth,
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'x',
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element.offsetHeight
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)
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html2canvas(element, {
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useCORS: true,
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allowTaint: true,
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backgroundColor: null,
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scale: 2,
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dpi: 400,
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logging: true, // 开启日志便于调试
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width: element.offsetWidth,
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height: element.offsetHeight,
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windowWidth: element.offsetWidth,
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windowHeight: element.offsetHeight,
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scrollX: 0,
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scrollY: 0,
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x: 0,
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y: 0,
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})
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.then(canvas => {
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const dataUrl = canvas.toDataURL('image/jpeg', 1)
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// 根据环境处理结果
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if (this.isWechat) {
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// 微信环境：设置图片供长按保存
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this.generatedImageUrl = dataUrl
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uni.hideLoading()
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} else {
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// 普通浏览器：直接下载图片
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this.downloadImage(dataUrl)
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uni.hideLoading()
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uni.showToast({
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title: '图片已开始下载',
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icon: 'success',
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})
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}
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resolve()
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})
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.catch(err => {
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console.error('html2canvas截取失败:', err)
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reject(err)
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})
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}, 1000) // 增加等待时间到1000ms
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}
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// 开始等待图片加载
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waitForImages()
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})
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},
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// 原生图片加载器
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loadImage(src) {
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return new Promise((resolve, reject) => {
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const img = new Image()
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img.crossOrigin = 'anonymous'
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img.onload = () => {
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console.log(
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`图片加载成功: ${src.substring(0, 50)}...`,
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`${img.width}x${img.height}`
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)
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resolve(img)
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}
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img.onerror = error => {
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console.error(`图片加载失败: ${src}`, error)
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reject(new Error(`图片加载失败: ${src}`))
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}
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img.src = src
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})
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},
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// 下载图片
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downloadImage(dataUrl) {
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const link = document.createElement('a')
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link.href = dataUrl
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link.download = `share_page_${Date.now()}.png`
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document.body.appendChild(link)
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link.click()
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document.body.removeChild(link)
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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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.share-container {
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flex: 1;
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height: 0;
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box-sizing: border-box;
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position: relative;
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overflow: hidden;
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display: flex;
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flex-direction: column;
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align-items: center;
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}
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/* 背景图片样式 */
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.share-bg-image {
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position: absolute;
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top: 0;
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left: 0;
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width: 100%;
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height: 100%;
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z-index: 1;
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}
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.share-bg {
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width: 100%;
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height: 100%;
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img {
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width: 100%;
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height: 100%;
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}
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}
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.share-wrapper {
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position: absolute;
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z-index: 2;
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bottom: 280rpx;
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display: flex;
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flex-direction: column;
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align-items: center;
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}
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.share-bg-logo {
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width: 100%;
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height: 360rpx;
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// margin-top: -60rpx;
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}
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.portal-frame {
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padding: 32rpx;
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width: 520rpx;
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border-radius: 40rpx;
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display: flex;
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box-sizing: border-box;
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flex-direction: column;
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align-items: center;
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margin: 0 auto;
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text-align: center;
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}
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.portal-frame.is-loaded {
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opacity: 1;
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transform: translateY(0);
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}
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.title {
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font-size: 44rpx;
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font-weight: 500;
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color: #1e1e1e;
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margin-bottom: 60rpx;
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}
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/* The single white card for the QR code */
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.qr-code-outer {
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width: 400rpx; /* 从400rpx缩小到320rpx */
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height: 400rpx; /* 从400rpx缩小到320rpx */
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background: rgba(255, 255, 255, 0.98);
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border-radius: 20rpx; /* 从24rpx减小到20rpx */
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box-shadow: 0px 8rpx 20rpx rgba(50, 50, 90, 0.06);
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border: 1px solid #f0f0f0;
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display: flex;
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align-items: center;
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justify-content: center;
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padding: 12rpx; /* 从16rpx减小到12rpx */
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box-sizing: border-box;
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}
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/* The image and the placeholder both live inside the outer card */
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.qr-code,
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.qr-code-placeholder {
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width: 100%;
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height: 100%;
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}
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.qr-code {
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border-radius: 16rpx;
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}
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.qr-code-placeholder {
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.loader {
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width: 100rpx;
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height: 100rpx;
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border: 8rpx solid rgba(0, 0, 0, 0.1);
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border-left-color: #0072ff;
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border-radius: 50%;
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animation: spin 1s linear infinite;
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}
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@keyframes spin {
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to {
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transform: rotate(360deg);
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}
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}
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.tip {
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font-size: 30rpx;
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color: #888;
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}
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.share-button {
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margin-top: 58rpx; /* 从32rpx减小到28rpx */
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width: 380rpx; /* 设置固定宽度 */
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color: #fff;
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border-radius: 36rpx; /* 从44rpx减小到36rpx */
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font-size: 16rpx; /* 从30rpx减小到26rpx */
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font-weight: 500;
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padding: 12rpx 0;
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display: flex;
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align-items: flex-start;
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justify-content: center;
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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// box-shadow: 0 5rpx 12rpx 0 rgba(102, 126, 234, 0.2);
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border: none;
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border-radius: 70rpx;
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text-align: center;
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letter-spacing: 1rpx;
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}
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/* 微信环境全屏覆盖样式 */
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.wechat-fullscreen-overlay {
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position: absolute;
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top: 0;
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left: 0;
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width: 100vw;
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height: 100%; /* 减去tab栏高度 */
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background-color: transparent; /* 移除背景色 */
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z-index: 999;
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display: flex;
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flex-direction: column;
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align-items: stretch; /* 拉伸对齐 */
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justify-content: stretch; /* 拉伸对齐 */
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padding: 0;
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margin: 0;
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}
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.fullscreen-image {
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width: 100vw;
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height: 100%; /* 减去tab栏高度 */
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object-fit: cover; /* 覆盖整个容器，可能会裁剪 */
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margin: 0;
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padding: 0;
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border: none;
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display: block;
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}
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@media screen and (max-height: 667px) {
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.tabbar {
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height: 70px !important;
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}
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}
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@media screen and (min-height: 812px) {
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/* iPhone X及以上机型 */
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.tabbar {
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height: 80px !important;
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}
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}
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.tabbar {
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position: static;
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bottom: 0;
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z-index: 1000;
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width: 100%;
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height: 50px;
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:v-deep .u-tabbar--fixed {
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height: 100px !important;
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}
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// ::v-deep .u-safe-area-inset-bottom {
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// display: none !important;
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// }
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}
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</style>
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