315 lines
8.3 KiB
JavaScript
315 lines
8.3 KiB
JavaScript
/*
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* 手太欠
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* 愿这世界都如故事里一样 美好而动人~
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*/
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Page({
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data: {
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isFixedTop : 0,
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barHeight : getApp().globalData.barHeight, // 状态栏高度
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goodsId : '', // 产品id
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mallData : '', // 产品信息
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mallContent: '', // 产品简介
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shareSee : false, // 分享弹出
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inviteText : '', // 自己的邀请码
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isParent : false, // 绑定邀请码
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nameValue : '', // 上级邀请码
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},
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onLoad(options) {
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if(options.invite != undefined) {
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getApp().globalData.inviteText = options.invite
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}
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this.setData({
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goodsId: options.id
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})
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// 初始化画布
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wx.createSelectorQuery().select('#coverCanvas').fields({node: true, size: true}).exec(canvasNode => {
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const canvas = canvasNode[0].node
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canvas.width = 375
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canvas.height = 600
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this.setData({
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canvas
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})
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})
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},
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onShow() {
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// 获取产品详情
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this.mallInfo();
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// 获取登录状态
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if(wx.getStorageSync("token") != ''){
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// 小程序码
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this.ShareInfo();
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}
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},
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/**
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* 产品详情
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*/
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mallInfo (){
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wx.$api.mall.mallSee(this.data.goodsId).then(res => {
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this.setData({
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mallData : res.data,
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mallContent : res.data.content.replace(/\<img/gi, '<img style="max-width:100%;height:auto;display:block;"')
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})
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}).catch(err => { })
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},
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/**
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* 确认购买
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*/
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buyTap() {
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// 获取登录状态
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if(wx.getStorageSync("token") != ''){
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if(this.data.mallData.is_parent == true) {
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wx.navigateTo({
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url: '/pages/mall/confirm/confirm?goodsid=' + this.data.mallData.goods_id + '&skuid=' + this.data.mallData.skus[0].sku_id + '&qty=1',
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})
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return
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}
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// 显示绑定邀请码弹窗
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this.setData({
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isParent: true
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})
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}else{
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// 去登录
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wx.navigateTo({
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url: "/pages/login/index"
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})
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}
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},
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/**
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* 小程序码
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*/
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ShareInfo() {
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wx.$api.user.miniShare({
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url: '/pages/index/index'
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}).then(res => {
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this.setData({
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inviteCode: res.data.qrcode
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})
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}).catch(err => {})
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},
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/**
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* 分享弹出
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*/
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shareTap() {
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// 获取登录状态
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if(wx.getStorageSync("token") != ''){
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this.setData({
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shareSee: !this.data.shareSee
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})
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}else{
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// 去登录
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wx.navigateTo({
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url: "/pages/login/index"
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})
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}
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},
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/**
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* 生成海报
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*/
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onCanvas(){
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wx.showLoading({
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title: '生成图片中...',
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mask : true
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})
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const canvas = this.data.canvas
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const ctx = canvas.getContext('2d')
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const codeImgEl = canvas.createImage()
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const backBackEl = canvas.createImage()
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codeImgEl.src = this.data.inviteCode //二维码
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backBackEl.src = this.data.mallData.cover //产品分享图片
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const codeImgLoding = new Promise((resolve, reason) => {
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codeImgEl.onload = () => {
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resolve()
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}
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})
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const backBackLoding = new Promise((resolve, reason) => {
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backBackEl.onload = () => {
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resolve()
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}
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})
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Promise.all([codeImgLoding, backBackLoding]).then(() => {
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// 绘制[二维码-白色背景]
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ctx.fillStyle = "#ffffff";
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ctx.fillRect(0, 0, 375, 540);
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ctx.drawImage(backBackEl, 0, 0, 375, 375)
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// 绘制[二维码]
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ctx.drawImage(codeImgEl, 270, 440, 80, 80)
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// 产品名称
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ctx.font = "24px Arial"; //字体大小
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ctx.fillStyle = "#000000"; //字体颜色
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ctx.fillText(this.data.mallData.name, 25, 420);
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// 产品价格
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ctx.font = "bold 36px Arial"; //字体大小
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ctx.fillStyle = "#3b7cff"; //字体颜色
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ctx.fillText(this.data.mallData.price.price, 25, 480);
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// 海报文字提示
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ctx.font = "18px Arial"; //字体大小
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ctx.fillStyle = "#b3b3b3"; //字体颜色
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ctx.fillText('识别二维码进行查看', 25, 510);
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wx.hideLoading()
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wx.canvasToTempFilePath({
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canvas: this.data.canvas,
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success : res => {
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wx.saveImageToPhotosAlbum({
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filePath: res.tempFilePath,
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success: saveRes => {
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wx.showToast({
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title: '海报已保存至您的相册',
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icon : 'none'
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})
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this.setData({
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shareSee: false
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})
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},
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fail: () => {
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this.setData({
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shareSee: false
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})
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wx.hideLoading()
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wx.showModal({
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title: '提示',
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content: '暂未授权小程序写入您的相册，无法存储海报',
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confirmColor: '#e50d01',
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confirmText: '去设置',
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success: res => {
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if (res.confirm) {
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wx.openSetting()
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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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}).catch(err => {
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wx.showToast({
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title: '图片加载失败',
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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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邀请码截取
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*/
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bindinput(e) {
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this.setData({
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nameValue: e.detail.value
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})
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},
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/**
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* 绑定邀请码
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*/
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nameTrue() {
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wx.$api.mall.levelBind({
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invite: this.data.nameValue
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}).then(res => {
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this.setData({
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isParent: false
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})
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wx.navigateTo({
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url: '/pages/mall/confirm/confirm?goodsid=' + this.data.mallData.goods_id + '&skuid=' + this.data.mallData.skus[0].sku_id + '&qty=1',
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})
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}).catch(err => {})
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},
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/**
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* 关闭绑定邀请码弹窗
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*/
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nameCancel() {
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this.setData({
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isParent: !this.data.isParent
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})
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},
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/**
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* 删除邀请码
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*/
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colseTap() {
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this.setData({
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nameValue: ''
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})
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},
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/**
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* 返回上一页
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*/
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returnGo() {
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wx.navigateBack({
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delta: 1,
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fail: err => {
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wx.switchTab({
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url: '/pages/index/index?invite=' + getApp().globalData.inviteText
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})
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}
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})
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},
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/**
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* 回到首页
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*/
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returnHome() {
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wx.switchTab({
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url: '/pages/index/index?invite=' + getApp().globalData.inviteText
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})
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},
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/**
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* 监听页面滑动事件
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*/
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onPageScroll(e) {
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this.setData({
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isFixedTop: parseInt(e.scrollTop)
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});
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},
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/**
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* 微信分享
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*/
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onShareAppMessage(){
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this.setData({
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shareSee: false
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})
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return {
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title : this.data.mallData.name,
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path : "/pages/mall/details/details?id=" + this.data.goodsId + '&invite=' + wx.getStorageSync("invite"),
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imageUrl: this.data.mallData.cover
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}
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},
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/**
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* 放大轮播相册图片
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*/
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opneBanner(e){
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let imgs = [],
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index = e.currentTarget.dataset.index
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for (let img of e.currentTarget.dataset.imgs){
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imgs.push(img)
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}
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wx.previewImage({
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urls : imgs,
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current : imgs[index]
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})
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}
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})
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