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589 lines
16 KiB
589 lines
16 KiB
// pages/info/roadInfo/index.js
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let device = wx.getSystemInfoSync();
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const ratio = device.windowWidth / 750;
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import commonApi from "../../../utils/https/common"
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import QRCode from '../../../utils/weapp-qrcode.js'
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let app = getApp()
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Page({
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/**
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* 页面的初始数据
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*/
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data: {
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fixed:false,
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type:1,
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top:0,
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isLike:0,
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commentTotal:0,
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comment:[],
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info:null,
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skuFlag:null,
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producNum:1,
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skuIndex:0,
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aniSkuIndex:-1,
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retailId:"",
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cartTop:0,
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cartImgInfo:null,
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cartCount:0,
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shareImg:null,
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showShareFlag:false
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},
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/**
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* 生命周期函数--监听页面加载
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*/
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onLoad: function (options) {
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let rect = wx.getMenuButtonBoundingClientRect(),that = this;
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let height = (rect.top - device.statusBarHeight) * 2 + rect.height + device.statusBarHeight;
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this.setData({
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top:height,
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id:options.id
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})
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// 获取购物车按钮的位置
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wx.createSelectorQuery().select('#cart').boundingClientRect(function(res){
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that.setData({
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cartTop:res.top
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})
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}).exec()
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if(options.retailId){
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this.setData({
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retailId:options.retailId
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})
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}
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commonApi._post("product/get_product_detail",{
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id:options.id
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}).then(res=>{
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res.data.display_tags = (res.data.display_tags?res.data.display_tags.split(","):[]).splice(0,2);
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if(options.skuid){
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let sku = res.data.sku.find(item=>item.id==options.skuid);
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res.data.sku = [sku];
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}
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this.setData({
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info:res.data
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})
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this.drawImg()
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this.BroswerRecord()
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})
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if(wx.getStorageSync("jstrip_token")){
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commonApi.user_post("product/is_product_collection",{
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product_id:options.id
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}).then(res=>{
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this.setData({
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isLike:res.data
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})
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})
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commonApi.user_post('cart/get_list',{}).then(res=>{
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this.setData({
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cartCount:res.data.length
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})
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})
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}
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// 获取评价列表
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commonApi._post("product/product_comment_list",{
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product_id:options.id
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}).then(res=>{
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res.data.list.map(item=>{
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item.rate = Number(item.rate)
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})
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this.setData({
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comment:res.data.list,
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commentTotal:res.data.total
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})
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})
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},
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BroswerRecord:function(){
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setTimeout(()=>{
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if(app.globalData.uuid){
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commonApi._post('browse/browse_record',{
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type:"goods",
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title:this.data.info.title,
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drive:"mini",
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source_id:this.data.info.id,
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url:"/pages/info/postProductInfo/index?id="+this.data.info.id,
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uuid:app.globalData.uuid
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}).then(res=>{
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})
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}
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else {
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this.BroswerRecord();
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}
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},500)
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},
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like:function(){
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let id = this.data.id,isLike = this.data.isLike;
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commonApi.user_post("product/"+(isLike==1?"product_cancel_collection":"product_collection"),{
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product_id:id
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}).then(res=>{
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if(res.code==1){
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this.setData({
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isLike:isLike==1?0:1
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})
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}
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})
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},
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changeMenu:function(e){
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let index = e.currentTarget.dataset.index,that = this;
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const query=wx.createSelectorQuery(); //创建节点查询器
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query.select("#box"+index).boundingClientRect() //选择toViewid获取位置信息
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query.selectViewport().scrollOffset() //获取页面查询位置的
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query.exec(function(res) {
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let scrollTop = res[0].top + res[1].scrollTop - 110 * ratio - that.data.top;
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wx.pageScrollTo({
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scrollTop: scrollTop + 4,
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duration: 0
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})
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that.setData({
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type:index
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})
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})
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},
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onPageScroll:function(e){
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let that = this,height = this.data.top;
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let topHeight = height;
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wx.createSelectorQuery().select('#menus').boundingClientRect(function(rect){
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if(rect.top<=topHeight){
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// 此时应该把menus固定在顶部
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that.setData({
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fixed:true
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})
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}
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else{
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that.setData({
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fixed:false
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})
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}
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// 滚动时判断滚动到哪个部分了
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const query=wx.createSelectorQuery(); //创建节点查询器
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query.select("#box1").boundingClientRect() //选择toViewid获取位置信息
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query.select("#box2").boundingClientRect() //选择toViewid获取位置信息
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query.select("#box3").boundingClientRect() //选择toViewid获取位置信息
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let minHeight = that.data.fixed?(110 * ratio + height): topHeight;
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query.exec(function(res) {
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if(res[2].top<minHeight){
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that.setData({
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type:3
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})
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}
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else if(res[1].top<minHeight){
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that.setData({
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type:2
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})
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}
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else {
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that.setData({
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type:1
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})
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}
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})
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}).exec()
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},
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showCart:function(){
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if(this.data.info.sku.length==0){
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wx.showToast({
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title: '该产品未设置规格，不能加购',
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icon:'none'
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})
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return;
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}
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this.setData({
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skuFlag:"cart"
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})
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let that = this
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wx.createSelectorQuery().select('#skuImg').boundingClientRect(function(res){
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console.log(res)
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that.setData({
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cartImgInfo:'top:'+res.top+'px;left:'+res.left+'px;'
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})
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}).exec()
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},
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hideSku:function(){
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this.setData({
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skuFlag:null,
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cartImgInfo:null
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})
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},
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minus:function(){
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if(this.data.producNum==1) return;
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this.setData({
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producNum:this.data.producNum-1
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})
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},
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add:function(){
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this.setData({
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producNum:this.data.producNum+1
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})
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},
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selectSku:function(e){
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let index = e.currentTarget.dataset.index;
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this.setData({
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skuIndex:index
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})
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},
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showOrder:function(){
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if(this.data.info.sku.length==0){
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wx.showToast({
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title: '该产品未设置规格，不能购买',
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icon:'none'
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})
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return;
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}
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this.setData({
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skuFlag:'order'
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})
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},
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order:function(){
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if(this.data.skuFlag=='order'){
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app.globalData.couponInfo = null;
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// 购买
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let product = [{
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product:this.data.info,
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sku:this.data.info.sku[this.data.skuIndex],
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productNum:this.data.producNum
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}];
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app.globalData.postProduct = product;
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app.globalData.retailId = this.data.retailId;
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wx.navigateTo({
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url: '/pages/order/postOrder/index',
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})
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}
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else {
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commonApi.user_post("cart/add_sku",{
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sku_id:this.data.info.sku[this.data.skuIndex].id,
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num:this.data.producNum
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}).then(res=>{
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if(res.code==1){
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commonApi.user_post('cart/get_list',{}).then(res=>{
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this.setData({
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cartCount:res.data.length
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})
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})
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// 加动效
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this.setData({
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skuFlag:null,
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aniSkuIndex:this.data.skuIndex,
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cartImgInfo:null
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})
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setTimeout(()=>{
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this.setData({
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aniSkuIndex:-1
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})
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wx.showModal({
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title:"提示",
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content:"去购物车结算？",
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success:function(res){
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if(res.confirm){
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wx.navigateTo({
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url: '/pages/user/cartlist/list',
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})
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}
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}
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})
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},650)
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}
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})
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}
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},
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// 分享
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share:function(){
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if(!wx.getStorageSync("jstrip_token")){
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commonApi.user_post("user/getMyInfo",{}).then(res=>{
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})
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return;
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}
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if(!this.data.shareImg){
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wx.showToast({
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title: '图片生成中，稍后再试',
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icon:'none'
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})
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return;
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}
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this.setData({
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showShareFlag:!this.data.showShareFlag
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})
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},
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// 保存
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save(){
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let url = this.data.shareImg,that = this;
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wx.authorize({
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/* 这个就是保存相册的 */
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scope: 'scope.writePhotosAlbum',
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success() {
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wx.saveImageToPhotosAlbum({
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filePath:url,
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success(res) {
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wx.showToast({
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title: '保存成功',
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icon:"success"
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})
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that.setData({
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showShareFlag:!this.data.showShareFlag
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})
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},
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fail(res){
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wx.showToast({
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title: '保存失败',
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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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complete(res) {
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console.log(res);
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/* 这里判断一下如果没有授权重新打开设置选项 */
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wx.getSetting({
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success(res) {
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if (!res.authSetting['scope.writePhotosAlbum']) {
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/* 打开设置的方法 */
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// opensit();
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wx.showToast({
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title: '请打开权限后再试',
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icon:'none'
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})
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}
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}
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});
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}
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});
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},
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// 绘制海报
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drawImg:function(){
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var that = this,userinfo = wx.getStorageSync('jstrip_userInfo');
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if(!userinfo){
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// 去登录
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return false;
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}
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const ctx = wx.createCanvasContext('imageCanvas');
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// const device = wx.getSystemInfoSync();
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// const ratio = device.screenWidth / 750;
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// 先获取到图片信息
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let promise2 = new Promise(function(resolve,reject){
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wx.getImageInfo({
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src:that.data.info.headimg,
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success:function(res){
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resolve(res);
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},
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fail:function(res){
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reject(res);
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}
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})
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})
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let promise3 = new Promise(function(resolve,reject){
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let userid = wx.getStorageSync('jstrip_userid')
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new QRCode('myQrcode',{
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text: 'https://m.cloud.sz-trip.com/MailMerchandiseDetail?id='+that.data.info.id+'&userId='+userid,
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width: 500,
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height: 500,
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padding: 12, // 生成二维码四周自动留边宽度，不传入默认为0
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correctLevel: QRCode.CorrectLevel.H, // 二维码可辨识度
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callback: (res) => {
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resolve(res);
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}
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})
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})
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//成功得到图片信息后，开始绘图
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Promise.all([promise2,promise3]).then(imgs=>{
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ctx.save();
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ctx.beginPath(); //开始绘制
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that.handleBorderRect(ctx,0,0,551 * ratio,407 * ratio,25 * ratio,'#ccc')
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ctx.clip();//画好了圆 剪切 原始画布中剪切任意形状和尺寸。一旦剪切了某个区域，则所有之后的绘图都会被限制在被剪切的区域内 这也是我们要save上下文的原因
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ctx.drawImage(imgs[0].path, 0, 0,551 * ratio,407 * ratio);
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ctx.restore();
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ctx.save();
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that.handleBorderRect2(ctx,0,407 * ratio,551 * ratio,236*ratio,25 * ratio,'#fff')
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ctx.restore();
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// 绘制二维码
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ctx.drawImage(imgs[1].path, 373 * ratio, 495 * ratio,137 * ratio, 137 * ratio);
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// 开始文字绘制
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ctx.setFillStyle("#000");
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ctx.setFontSize(30 * ratio); //字大小
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ctx.setTextAlign('left'); //是否居中显示，参考点画布中线
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that.drawText(ctx,that.data.info.title, 25*ratio, 450*ratio,480 * ratio,ratio);
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// 售价
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ctx.setFillStyle("#D62828");
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ctx.setFontSize(40 * ratio); //字大小
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ctx.setTextAlign('left'); //是否居中显示，参考点画布中线
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let price = "￥"+(that.data.info.price/100);
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let width = ctx.measureText(price).width;
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ctx.fillText(price, 25*ratio, 620*ratio);
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// 副标题
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ctx.setFillStyle("#999999");
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ctx.setFontSize(28 * ratio); //字大小
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ctx.setTextAlign('left'); //是否居中显示，参考点画布中线
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let subtitle = that.data.info.subtitle;
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if(that.data.info.subtitle.length>10){
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subtitle = that.data.info.subtitle.substr(0,10)+'...'
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}
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ctx.fillText(subtitle, 25*ratio, 540*ratio);
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// ctx.draw();
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// 划线价
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ctx.setFillStyle("#999999");
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ctx.setFontSize(32 * ratio); //字大小
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ctx.setTextAlign('left'); //是否居中显示，参考点画布中线
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let market_price = "￥"+(that.data.info.market_price/100)
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ctx.fillText(market_price, 40*ratio + width, 620*ratio);
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let market_price_width = ctx.measureText(market_price).width;
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// 划线
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ctx.beginPath()
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ctx.setLineWidth(1)
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ctx.moveTo(40*ratio + width, 608*ratio)
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ctx.lineTo(45*ratio + width + market_price_width, 608*ratio)
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ctx.stroke();
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// 长按识别二维码
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// ctx.setFillStyle("#666");
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// ctx.setFontSize(22 * ratio); //字大小
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// ctx.setTextAlign('left'); //是否居中显示，参考点画布中线
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// ctx.fillText("长按识别二维码", 404*ratio, 710*ratio);
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// 长按图片转发或保存
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// ctx.setFillStyle("#000");
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// ctx.setFontSize(24 * ratio); //字大小
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// ctx.setTextAlign('left'); //是否居中显示，参考点画布中线
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// ctx.fillText("长按图片保存到本地",(592*ratio - ctx.measureText("长按图片保存到本地").width)/2, 740*ratio);
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ctx.draw();
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// 转为图片
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setTimeout(()=>{
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wx.canvasToTempFilePath({
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x: 0,
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y: 0,
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canvasId: 'imageCanvas',
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success: function (res) {
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that.setData({
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shareImg:res.tempFilePath
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})
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},
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fail(err){
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console.log('agdgjgdajhg',err)
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}
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})
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},500)
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return false;
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}).catch(err=>{
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console.log("this err",err)
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})
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},
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// 圆角矩形
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handleBorderRect(ctx, x, y, w, h, r, color){
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ctx.beginPath();
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ctx.moveTo(x+w,y+h);
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ctx.lineTo(x,y+h)
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// 左上角
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ctx.arc(x + r, y + r, r, Math.PI, 1.5 * Math.PI);
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ctx.moveTo(x + r, y);
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ctx.lineTo(x + w - r, y);
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ctx.lineTo(x + w, y + r);
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// 右上角
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ctx.arc(x + w - r, y + r, r, 1.5 * Math.PI, 2 * Math.PI);
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ctx.lineTo(x + w, y + h );
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ctx.lineTo(x + w - r, y + h);
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ctx.fillStyle = color;
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ctx.fill();
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ctx.closePath();
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},
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handleBorderRect2(ctx, x, y, w, h, r, color){
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ctx.beginPath();
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ctx.moveTo(x,y);
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ctx.lineTo(x+w,y)
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// 右下角
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ctx.arc(x + w - r, y + h - r, r, 0, 0.5 * Math.PI);
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ctx.lineTo(x + r, y + h);
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ctx.lineTo(x, y + h - r);
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// 左下角
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ctx.arc(x + r, y + h - r, r, 0.5 * Math.PI, Math.PI);
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ctx.lineTo(x, y);
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ctx.lineTo(x, y);
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ctx.fillStyle = color;
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ctx.fill();
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ctx.closePath();
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},
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// 绘制两行文字
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drawText: function(ctx, str, x, y, canvasWidth,ratio) {
|
|
let row = [],temp="",chr=str.split("");
|
|
for (var a = 0; a < chr.length; a++) {
|
|
if (ctx.measureText(temp).width < canvasWidth) {
|
|
temp += chr[a];
|
|
}
|
|
else {
|
|
a--; //这里添加了a-- 是为了防止字符丢失，效果图中有对比
|
|
row.push(temp);
|
|
temp = "";
|
|
}
|
|
}
|
|
row.push(temp);
|
|
|
|
//如果数组长度大于2 则截取前两个
|
|
if (row.length > 2) {
|
|
var rowCut = row.slice(0, 2);
|
|
var rowPart = rowCut[1];
|
|
var test = "";
|
|
var empty = [];
|
|
for (var a = 0; a < rowPart.length; a++) {
|
|
if (ctx.measureText(test).width < canvasWidth - 30 * ratio) {
|
|
test += rowPart[a];
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
}
|
|
empty.push(test);
|
|
var group = empty[0] + "..."//这里只显示两行，超出的用...表示
|
|
rowCut.splice(1, 1, group);
|
|
row = rowCut;
|
|
}
|
|
for (var b = 0; b < row.length; b++) {
|
|
ctx.fillText(row[b], x, y + b * 40 * ratio, canvasWidth);
|
|
}
|
|
},
|
|
/**
|
|
* 生命周期函数--监听页面初次渲染完成
|
|
*/
|
|
onReady: function () {
|
|
|
|
},
|
|
|
|
/**
|
|
* 生命周期函数--监听页面显示
|
|
*/
|
|
onShow: function () {
|
|
|
|
},
|
|
|
|
/**
|
|
* 生命周期函数--监听页面隐藏
|
|
*/
|
|
onHide: function () {
|
|
|
|
},
|
|
|
|
/**
|
|
* 生命周期函数--监听页面卸载
|
|
*/
|
|
onUnload: function () {
|
|
|
|
},
|
|
|
|
/**
|
|
* 页面相关事件处理函数--监听用户下拉动作
|
|
*/
|
|
onPullDownRefresh: function () {
|
|
|
|
},
|
|
|
|
/**
|
|
* 页面上拉触底事件的处理函数
|
|
*/
|
|
onReachBottom: function () {
|
|
|
|
},
|
|
|
|
/**
|
|
* 用户点击右上角分享
|
|
*/
|
|
onShareAppMessage: function () {
|
|
|
|
}
|
|
})
|