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@ -2,6 +2,7 @@ |
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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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@ -19,19 +20,32 @@ Page({ |
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skuFlag:null, |
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producNum:1, |
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skuIndex:0, |
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retailId:"" |
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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(); |
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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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@ -48,6 +62,7 @@ Page({ |
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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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@ -58,6 +73,11 @@ Page({ |
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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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@ -160,13 +180,29 @@ Page({ |
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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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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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@ -187,6 +223,13 @@ Page({ |
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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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@ -212,15 +255,287 @@ Page({ |
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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: '加入购物车成功', |
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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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this.setData({ |
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skuFlag:null |
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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) { |
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let row = [],temp="",chr=str.split(""); |
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for (var a = 0; a < chr.length; a++) { |
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if (ctx.measureText(temp).width < canvasWidth) { |
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temp += chr[a]; |
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} |
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else { |
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a--; //这里添加了a-- 是为了防止字符丢失，效果图中有对比
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row.push(temp); |
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temp = ""; |
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} |
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} |
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row.push(temp); |
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//如果数组长度大于2 则截取前两个
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if (row.length > 2) { |
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var rowCut = row.slice(0, 2); |
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var rowPart = rowCut[1]; |
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var test = ""; |
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var empty = []; |
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for (var a = 0; a < rowPart.length; a++) { |
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if (ctx.measureText(test).width < canvasWidth - 30 * ratio) { |
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test += rowPart[a]; |
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} |
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else { |
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break; |
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} |
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} |
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empty.push(test); |
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var group = empty[0] + "..."//这里只显示两行，超出的用...表示
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rowCut.splice(1, 1, group); |
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row = rowCut; |
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} |
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for (var b = 0; b < row.length; b++) { |
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ctx.fillText(row[b], x, y + b * 40 * ratio, canvasWidth); |
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} |
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}, |
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/** |
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Myth
5 years ago