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472 lines
13 KiB
472 lines
13 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 util from "../../../utils/util"
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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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info: null,
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top: 0,
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retailId: "",
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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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if (options.id) {
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this.setData({
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id: options.id
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})
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}
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else {
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util.back();
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return;
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}
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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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let rect = wx.getMenuButtonBoundingClientRect();
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let height = (rect.top - device.statusBarHeight) * 2 + rect.height + device.statusBarHeight;
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console.log(height)
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this.setData({
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top: height
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})
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let api = commonApi._post;
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if (wx.getStorageSync("jstrip_token")) {
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api = commonApi.user_post;
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}
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api("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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// 如果带有指定skuid的话 那么取指定的sku展示
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if (options.skuid) {
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for (let i = 0; i < res.data.sku.length; i++) {
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if (res.data.sku[i].id == options.skuid) {
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res.data.sku = [res.data.sku[i]];
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break;
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}
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}
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}
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res.data.sku.map(item => {
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item.sku_model.recharge = item.sku_model.recharge ? item.sku_model.recharge.split(",") : [];
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item.sku_model.recharge.map(item => {
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item = Number(item);
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})
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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.BroswerRecord();
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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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order: function () {
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app.globalData.couponInfo = null;
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app.globalData.product = {
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product: this.data.info,
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sku: this.data.info.sku[0]
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}
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app.globalData.retailId = this.data.retailId;
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wx.navigateTo({
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url: '/pages/order/card/index'
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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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console.log(rect.top, topHeight)
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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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let minHeight = that.data.fixed ? (110 * ratio + height) : topHeight;
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query.exec(function (res) {
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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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// 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/ScenicDetail?id=' + that.data.info.id + '&sharedUserId=' + userid + '&channel=-1',
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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.display_tags[0];
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if (subtitle.length > 10) {
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subtitle = 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 = "￥" + (Number(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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* 生命周期函数--监听页面初次渲染完成
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*/
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onReady: function () {
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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.id,
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url: "/pages/info/cardInfo/index?id=" + this.data.id,
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uuid: app.globalData.uuid
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}).then(res => {
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console.log(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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/**
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* 生命周期函数--监听页面显示
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*/
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onShow: function () {
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if (!wx.getStorageSync('jstrip_token')) {
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return;
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}
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if (this.data.info && this.data.info.id) {
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this.drawImg()
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}
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else {
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setTimeout(() => {
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this.onShow()
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}, 200)
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}
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},
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/**
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* 生命周期函数--监听页面隐藏
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*/
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onHide: function () {
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},
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/**
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* 生命周期函数--监听页面卸载
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*/
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onUnload: function () {
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},
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/**
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* 页面相关事件处理函数--监听用户下拉动作
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*/
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onPullDownRefresh: function () {
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},
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/**
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* 页面上拉触底事件的处理函数
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*/
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onReachBottom: function () {
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},
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/**
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* 用户点击右上角分享
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*/
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onShareAppMessage: function () {
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}
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})
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