forked from zhongyuanhaiju/uniapp
409 lines
12 KiB
Vue
409 lines
12 KiB
Vue
<!-- 省、市 两级地区选择器 -->
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<template>
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<view>
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<!-- 分享弹框 -->
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<van-share-sheet
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v-model="show"
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title="立即分享给好友"
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:close-on-click-overlay="false"
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:options="options"
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:cancel-text="''"
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@click-overlay="cancel"
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@cancel="cancel"
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@select="onShare"
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/>
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<!-- 二维码弹框 -->
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<van-popup ref="qrcodeContent" class="qrcode-content" v-model="share_qrcode_show">
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<canvas ref="qrcode" canvas-id="share-qrcode" class="qrcode-canvas" />
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</van-popup>
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<!-- 海报弹框 -->
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<van-popup class="poster-content" v-model="share_poster_show">
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<canvas ref="posterImage" canvas-id="posterImage" id="posterImage" class="poster-image" />
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<image :src="poster_image" :show-menu-by-longpress="true" class="poster-image poster-show-image"/>
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</van-popup>
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<!--<view v-if="share_poster_show" class="poster-tip">-->
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<!-- <view class="download-button" @click="downloadPoster">下载海报</view>-->
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<!--</view>-->
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<view v-if="share_poster_show" class="poster-tip">长按图片保存</view>
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<!--同意关闭按钮-->
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<van-button v-if="share_poster_show || share_qrcode_show" type="danger" size="small" class="cancel-btn" @click="cancelAll">
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关闭
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</van-button>
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</view>
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</template>
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<script>
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import uQRCode from 'common/js/uqrcode.js'
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import {Weixin} from "../../common/js/wx-jssdk";
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import Http from "../../common/js/http";
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export default {
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name: 'share-panel',
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props:{
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// 是否显示
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show:{
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type: Boolean,
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default: function() {
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return false;
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}
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},
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// 分享信息
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share: {
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type: Object,
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default: function() {
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return {};
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}
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},
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// 分享参数
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shareParams: {
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type: Array,
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default: function() {
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return [];
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}
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},
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},
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onLoad() {},
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onShow() {},
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data() {
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return {
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userInfo: {},
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path: '',
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options: [
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// { name: '微信', icon: 'wechat' },
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{ name: '复制链接', icon: 'link' },
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{ name: '分享海报', icon: 'poster' },
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{ name: '二维码', icon: 'qrcode' },
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],
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share_qrcode_show: false,// 二维码分享
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share_poster_show: false,// 海报分享
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share_id: '',
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poster_image: '',
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};
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},
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watch: {
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share: {
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handler(newValue, oldValue) {
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this.createSharePath();
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this.setPublicShare();
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},
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immediate: false,
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deep: true
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}
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},
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created() {},
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mounted() {
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// 生成唯一分享id
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this.createShareId();
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// 获取个人信息
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this.getUserInfo();
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},
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methods: {
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//获取个人信息
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getUserInfo() {
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this.$api.sendRequest({
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url: '/api/member/info',
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success: res => {
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if (res.code == 0) {
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this.userInfo = res.data;
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this.createSharePath();
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this.setPublicShare();
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}
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}
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});
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},
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// 关闭
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cancel(){
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this.$emit('close');
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},
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// 关闭全部
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cancelAll(){
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this.share_qrcode_show = false;
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this.share_poster_show = false;
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this.cancel();
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},
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// 点击分享
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onShare(option,index){
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this.recordSharing();
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// 根据点击的类型进行对应的分享操作
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let icon = option.icon;
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switch (icon){
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case 'link': this.shareLink();break;
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case 'poster': this.sharePoster();break;
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case 'qrcode': this.shareQrcode();break;
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}
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},
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// 分享 —— 复制链接
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shareLink(){
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this.$util.copy(this.path);
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this.cancel();
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},
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// 分享 —— 二维码
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shareQrcode(is_get = false){
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let _this = this;
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_this.cancel();
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_this.share_qrcode_show = true
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return new Promise((req, rej) => {
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_this.$nextTick(() => {
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if(is_get) _this.$refs.qrcodeContent.$el.style.marginLeft = '50000px';
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else _this.$refs.qrcodeContent.$el.style.marginLeft = '0';
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let size = _this.$refs.qrcode.$el.offsetHeight;
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uQRCode.make({
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canvasId: 'share-qrcode',
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componentInstance: this,
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text: _this.path,
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size: size,
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margin: 10,
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backgroundColor: '#ffffff',
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foregroundColor: '#000000',
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fileType: 'jpg',
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errorCorrectLevel: uQRCode.errorCorrectLevel.H,
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success: res => {
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req(res);
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}
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});
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})
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});
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},
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// 分享 —— 生成海报
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async sharePoster(){
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// 显示内容
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let _this = this;
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_this.share_poster_show = true;
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let backgroundImage = _this.$util.img('public/picture/aijiu/article_bg.jpg');// 背景图片
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let avatar = _this.$util.img( _this.userInfo.headimg );// 用户头像
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let qrcode = '';
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await _this.shareQrcode(true).then((res)=>{
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qrcode = res;
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_this.share_qrcode_show = false
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});
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// 开始绘制
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_this.$nextTick(() => {
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// 获取画布大小
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let width = _this.$refs.posterImage.$el.offsetWidth;// 300
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let height = _this.$refs.posterImage.$el.offsetHeight;// 510
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// 生成基本画布
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let ctx = uni.createCanvasContext('posterImage', this);
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ctx.setFillStyle('#ffffff'); // 默认白色
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ctx.fillRect(0, 0, width, height);// fillRect(x,y,宽度，高度)
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// 绘制背景图
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ctx.drawImage(backgroundImage, 0, 0, width , height) // drawImage(图片路径,x,y,绘制图像的宽度，绘制图像的高度)
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// 绘制头像
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_this.drawAvatar(ctx,avatar,width);
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// 绘制用户昵称
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let nicknameLen = this.userInfo.nickname.length;
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let nicknameX = (width / 2) - (nicknameLen * 20 / 2);
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ctx.setFillStyle('#000000');
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_this.drawText(ctx,"20px Microsoft YaHei",this.userInfo.nickname,nicknameX,230,width)
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// 绘制文字
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ctx.setFillStyle('#a67344');
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_this.drawText(ctx,"20px Microsoft YaHei","欢迎关注",110,45,width)
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_this.drawText(ctx,"20px Microsoft YaHei","全叶真爱",110,70,width)
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// 邀请词
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let invitation = "邀请您一起学养生，懂健康";
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let len = invitation.length;
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let invitationX = (width / 2) - (len * 15 / 2);
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_this.drawText(ctx,"15px Microsoft YaHei",invitation,invitationX,270,width)
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// 二维码
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let qrcodeSize = 100;
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ctx.drawImage(qrcode, (width / 2 - (qrcodeSize / 2)), 290, qrcodeSize , qrcodeSize) // drawImage(图片路径,x,y,绘制图像的宽度，绘制图像的高度)
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// 将内容绘制到画布上面
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ctx.draw(true,function () {
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uni.canvasToTempFilePath({
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canvasId: 'posterImage',
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success: (res) => {
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//console.log(res.tempFilePath);
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_this.poster_image = res.tempFilePath
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},
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fail: function(err) {
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console.log("失败")
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console.log(err)
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}
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})
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});
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})
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},
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// 生成海报 —— 绘制头像
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drawAvatar(ctx,avatar,width){
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let arcX = width / 2;
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let avatarSize = 40;
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ctx.save();
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// 绘制头像背景
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ctx.beginPath();
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ctx.fillStyle = "#d7c08a";
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ctx.arc(arcX,160,45,0,2*Math.PI);
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ctx.fill();
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// 绘制头像
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ctx.beginPath();
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ctx.arc(arcX,160, avatarSize, 0, Math.PI * 2);
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ctx.clip();
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ctx.drawImage(avatar, arcX - avatarSize, 160 - avatarSize , avatarSize * 2 , avatarSize * 2) // drawImage(图片路径,x,y,绘制图像的宽度，绘制图像的高度)
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ctx.closePath();
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ctx.restore();
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},
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// 生成海报 —— 绘制文字
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drawText(ctx,size,text,x,y,maxWidth){
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ctx.save();
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ctx.beginPath();
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ctx.font = size;
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ctx.fillText(text, x, y, maxWidth);
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ctx.closePath();
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ctx.restore();
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},
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// 点击下载海报
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downloadPoster(){
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uni.canvasToTempFilePath({
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canvasId: 'posterImage',
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success: (res) => {
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uni.downloadFile({
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url: res.tempFilePath,
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success: (res) => {
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var link = document.createElement('a') //创建一个a标签
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link.href = res.tempFilePath//把a标签的href属性赋值到生成好了的url
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link.download = '邀请好友.png'//通过a标签的download属性修改下载图片的名字
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link.click()//让a标签的click函数，直接下载图片
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},
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})
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},
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fail: function(err) {
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console.log("失败canvasToTempFilePath")
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console.log(err)
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}
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})
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},
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// 记录分享信息
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recordSharing(){
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let _this = this;
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_this.$api.sendRequest({
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url: '/api/ShareRecord/recordShareInfo',
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data: { share_path: _this.path }
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});
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},
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// 设置公众号分享信息
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setPublicShare(){
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let shareUrl = this.path;
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let _this = this;
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this.$util.setPublicShare({
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title: _this.share.title, // 分享标题
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desc: _this.share.desc, // 分享描述
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link: shareUrl,
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imgUrl: _this.$util.img(_this.share.imgUrl), // 分享图标
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},function (params) {
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Http.sendRequest({
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url: '/api/ShareRecord/recordShareInfo',
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data: { share_path: params.link },
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success: res => {},
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fail:err=>{}
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})
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})
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},
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// 生成唯一的分享id
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createShareId(){
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let timeDate = new Date()
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this.share_id = timeDate.getTime().toString();
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},
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// 生成分享链接
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createSharePath(){
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// 生成唯一id
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this.createShareId();
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let member_id = this.userInfo.member_id;
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this.path = '';
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// 生成分享链接
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if(this.share.link){
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// 如果传递了分享链接 使用分享链接
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this.path = this.share.link + `?source_member=${member_id}&share_id=` + this.share_id.toString();
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}else{
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// 没有分享链接 生成分享链接
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let pages = getCurrentPages();
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let currentPage = pages[pages.length - 1].$page
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let currentPath = currentPage.path + `?source_member=${member_id}&share_id=` + this.share_id.toString();
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let options = currentPage.options;
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// 获取分享的参数
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if(Object.keys(this.shareParams).length > 0){
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this.shareParams.forEach(function (item, index) {
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if(options[item]) currentPath = currentPath + `&${item}=` + options[item];
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});
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}
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let split = window.location.href.split(currentPage.path)
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this.path = split[0] + currentPath;
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}
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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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.qrcode-content{
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width: 60vw;
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height: 60vw;
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.qrcode-canvas{
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width: 60vw;
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height: 60vw;
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}
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}
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.poster-content{
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--poster-size-: 300px; // 海报的大小
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width: var(--poster-size-);
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height: calc(var(--poster-size-) * 1.7);
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.poster-image{
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width: 100%;
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height: 100%;
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}
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.poster-show-image{
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position: absolute;
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z-index: 555555;
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top: 0;
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}
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}
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.poster-tip {
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position: absolute;
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font-size: 50rpx;
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font-weight: bold;
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z-index: 99999;
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bottom: 160rpx;
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width: 100%;
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text-align: center;
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color: #fff;
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display: inline-flex;
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align-items: center;
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justify-content: center;
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.download-button{
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color: #fff;
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background: #ee0a24;
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width: 100px;
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border-radius: 30px;
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font-size: 15px;
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height: 30px;
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line-height: 30px;
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}
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}
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.cancel-btn{
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position: absolute;
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top: 40rpx;
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right: 40rpx;
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z-index: 999999;
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width: 100rpx;
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height: 50rpx;
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font-size: 26rpx;
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border-radius: 50rpx;
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}
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</style>
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