import SignaturePad from '../../../../utils/signature_pad'; import * as UTIL from '../../../../utils/util.js'; import * as API from '../../../../utils/API.js'; let signaturePad = {}; let pix = 7; let penColor = 'black'; let lineWidth = 0.6; Page({ data: { penColor: 'black', lineWidth: 0.6, isEmpty: true, baseItem:"", item:{}, url:"", isShow:false }, onLoad: function(options) { this.getUserInfo(); this.getBaseUrl() }, /* 获取用户信息*/ getUserInfo(){ UTIL.httpRequest(API.URL_GET_GETINFO, {method:'GET'}, { success: (res) => { if (res.code == API.SUCCESS_CODE) { this.setData({item:res.user}) if(this.data.item.electronicSignature==null||this.data.item.electronicSignature==""){ this.setData({isShow:false}) var ctx = wx.createCanvasContext('handWriting'); const data = { devicePixelRatio: pix, }; signaturePad = new SignaturePad(ctx, data); }else{ this.setData({isShow:true}) } } } }) }, getBaseUrl:function(){ let params={ configKey: "system.attachment.url"} UTIL.httpRequest(API.URL_GET_SYSCONFIG,params,{ success: (res) => { if (res.code == API.SUCCESS_CODE) { this.setData({url:res.rows[0].configValue+this.data.item.electronicSignature}) } } }) }, uploadScaleStart(e) { const item = { penColor: penColor, lineWidth: lineWidth }; signaturePad._handleTouchStart(e, item); }, back:function(){ wx.navigateBack({ delta: 1 }) }, uploadScaleMove(e) { signaturePad._handleTouchMove(e); }, uploadScaleEnd: function(e) { signaturePad._handleTouchEnd(e); const isEmpty = signaturePad.isEmpty(); this.setData({ isEmpty: isEmpty }) }, retDraw: function() { this.setData({isShow:false}) var ctx = wx.createCanvasContext('handWriting'); const data = { devicePixelRatio: pix, }; signaturePad = new SignaturePad(ctx, data); signaturePad.clear(); const isEmpty = signaturePad.isEmpty(); this.setData({ isEmpty: isEmpty }) }, getSysInfo: function() { var that = this wx.getSystemInfo({ success: function(res) { pix = res.pixelRatio that.setData({ width: res.windowWidth * pix, height: res.windowHeight * pix }) } }) }, //保存canvas图像 subCanvas: function() { let _this = this if (this.data.isEmpty) { return false } wx.canvasToTempFilePath({ canvasId: 'handWriting', success: function(res) { wx.uploadFile({       url: API.URL_POST_UPLOADFILE, //服务器地址       filePath:res.tempFilePath,//本地照片地址       name: 'file', header: { 'Content-Type': 'multipart/form-data', 'Authorization':'Bearer '+getApp().globalData.userInfo.token, //如果需要token的话要传 },       success (res){ let dd = JSON.parse(res.data) if(dd.code==200){ wx.showToast({ title: dd.msg, duration: 2000, icon:"success" }) setTimeout(() => { _this.back() }, 2000); }else{ wx.showToast({ title: dd.msg, duration: 2000, icon:"none" }) }       }     }) }, fail: function(res) { console.log(res) } }) }, // 保存电子签名 saveESign : function(item){ UTIL.httpRequest(API.URL_POST_USEREDIT,item,{ success: (res) => { if (res.code == API.SUCCESS_CODE) { wx.showToast({ title: "保存成功!", duration: 2000, icon:"success" }) } } }) } })