手机端上传照片实现 压缩、拖放、缩放、裁剪、合成拼图等功能
一、序
如题,最近工作中遇到一个移动端用户上传照片,然后在线编辑,添加一些别的图片合成的功能,类似于超级简化版美图秀秀。总结了一下,大致操作包含 上传图片,图片压缩、触摸拖动图片、放大/缩小、添加别的图片进行合成,最后生成一张新图片。功能比较多,问遍了度娘,也没什么系统的有用信息。蛋疼。。。于是挽起袖子自己撸代码。此过程略痛苦,手机型号不同,兼容性问题比较多。这个我会一一细说。
额外话,这个demo还涉及到 微信分享,手机验证码,这些代码也没有删,感兴趣的可以看看。
废话不多说,下面是目录。先看效果图,然后我再简单说说实现过程,把源码贴出来, 有需要的可以去我的 github 下载源码。
二、目录
1.效果图
2.原理
3.问题分析、解决方案
4.demo下载
1.效果图
2.原理
图片处理,直接想到 canvas , 这里也是用画布来做的,分析下流程需要上传、编辑、生成新图 这3个步骤。
a. 上传。 input 文件上传,然后将上传的文件转换为 base64 的格式,这里主要做图片的处理。
b. 压缩。通过画布将上传的图片进行等比例压缩,图片一般会压缩到100KB左右,具体的看宽高设置,会大、会小。不压缩,无法在线编辑,图片太大了,会卡的要命。
c. 拖拽。将图片设置为背景图,捕捉 touch 坐标,进行计算,调整图片的横纵坐标。此 demo 电脑手机通用,只需要将 touch 部分的坐标值改成 mouseX,mouseY 或者 clientX、clientY即可。
d. 图片的裁剪、放大、缩小,旋转。裁剪是根据背景图的坐标,设置画布大小裁剪图片。缩放、旋转,canvas有api,主要做数据的计算。这里这些操作没有采用touch的手势计算。因为我的素材很小,手指操作不方便。所以加的按钮,如果想做手势的逻辑类似,做一下坐标转换即可。
d. 图片合成。还是canvas的api,添加图片,然后编辑一番,最终保存成base64,传给后台,生成一张图片,本地生成没办法直接使用。所以配合服务端生成最合适。
e. demo引入了 jQuery ,请使用1.1以上版本的 jQuery ,我用的是 jquery-1.11.3.min.js 。
3.问题分析、解决方案
现在说一下做这个东西遇到的问题,也说明一下为什么会写这么多代码
a、canvas 兼容性,IOS8.0 以上,低了貌似都不支持。安卓不太清楚,低级版本肯定是不行了。市面上的手机基本都是OK的。
b、reader.readAsDataURL(oFile) 手机上传图片,iOS不支持 FileReader 的onload回调,无奈,加了 setTimeout 做延时处理。
c、手机上传的图片有横屏的,有竖屏的。超级麻烦,导致我们不知道哪个是宽,而且默认展示总不能倒着展示吧。这里引入 exif.js 这个js包可以判断照片的拍摄角度。牛逼啊。拿到拍摄角度之后,我们就可以放到画布里面,再把它旋转,压缩一下。就OK了。
d、手机的图片太大。现在手机照片动不动就好几MB,画布处理图片是转化成base64计算的,想想吧,一张几兆的图,转换成base64,还得大20%左右,用它编辑,页面一般就卡死了。所以上传成功后,先把图片用画布压缩到100KB以内,这个大小清晰度和处理速度是比较合适的。
e、压缩图片的时候还有个问题。canvas 的实际大小一定是显示大小的2倍,这样图片才不会是真,否则,你会发现你的图片超级模糊,和马赛克差不多了。
f、图片移动,这个比较简单了,就是注意移动端、PC端获取到事件对象后,坐标属性名不同,记得别搞错了。
g、最后图片的生成。canvas 最终生成的是base64,他可以直接保存成图片,不过保存之后我们就取不到了,所以建议发到服务端,服务端生成,返回公网链接。
4.demo下载
以上就是整个项目了,有什么问题,可以评论区留言。
源代码,我会上传到 github ,如果帮到你了,记得给个 star 奥。 github地址: https://github.com/Aaron-China/imgMaking
核心代码:
(function (win) { var obj = { a: 1, oldX: "", oldY: "", ratio: 1, ratioBig: 0, jsonUrl: \'https://xxxxxxx/api/xxxx\', radioSmall: 0, num: 1, setWidth: 432, //图片需要压缩到的尺寸 216,135 theDataBase: "", yaSuoBase64: "", hcBase64: "", image: new Image(), //放到画布的img bookCode: 12221212, flag: true, bodyWidth: \'\', bodyHeight: \'\', ifImgUpload: false, base64Zong: "", imgNewName: "", //首页的js。横竖屏、微信分享、滑动跳转 page1Init: function () { var w = this; if ($(win).width() >= $(win).height()) { w.bodyWidth = parseInt($(window).height()) + 64; w.bodyHeight = $(window).width(); $(\'body,html\').width(w.bodyWidth); $(\'body,html\').height(w.bodyHeight); } else { w.bodyWidth = $(window).width(); w.bodyHeight = $(window).height(); $(\'body,html\').width(w.bodyWidth); $(\'body,html\').height(w.bodyHeight); } window.addEventListener("onorientationchange" in window ? "orientationchange" : "resize", function () { if (window.orientation === 180 || window.orientation === 0) { $(\'body,html\').width(bodyWidth); $(\'body,html\').height(bodyHeight); } if (window.orientation === 90 || window.orientation === -90) { $(\'body,html\').width(bodyWidth); $(\'body,html\').height(bodyHeight); } }, false); // 初始化微信分享的 // w.wxConfig(); // w.wxReady(); var oldX = 0, oldY = 0; $("body").on("touchstart", imgTouchStart); $("body").on("touchmove", imgTouchMove); //手指按下时,捕捉事件,取坐标值,设置参数 function imgTouchStart(e) { //阻止事件冒泡的 e.stopImmediatePropagation(); oldX = e.originalEvent.touches[0].clientX; oldY = e.originalEvent.touches[0].clientY; } function imgTouchMove(e) { e.stopImmediatePropagation(); var x = e.originalEvent.touches[0].clientX - oldX; var y = e.originalEvent.touches[0].clientY - oldY; if (y < -150) { window.location.href = \'getBooks.html?\'; } } }, //上传照片页的js。横竖屏、微信分享、上传照片 page2Init: function () { var w = this; if ($(win).width() >= $(win).height()) { w.bodyWidth = parseInt($(window).height()) + 64; w.bodyHeight = $(window).width(); $(\'body,html\').width(w.bodyWidth); $(\'body,html\').height(w.bodyHeight); } else { w.bodyWidth = $(window).width(); w.bodyHeight = $(window).height(); $(\'body,html\').width(w.bodyWidth); $(\'body,html\').height(w.bodyHeight); } window.addEventListener("onorientationchange" in window ? "orientationchange" : "resize", function () { if (window.orientation === 180 || window.orientation === 0) { $(\'body,html\').width(bodyWidth); $(\'body,html\').height(bodyHeight); } if (window.orientation === 90 || window.orientation === -90) { $(\'body,html\').width(bodyWidth); $(\'body,html\').height(bodyHeight); } }, false); // w.wxConfig(); // w.wxReady3(); //上传图片进行处理 w.uploadImg(); if (localStorage.getItem("imgFlag") == "true") { $(".f-scInLock").hide(); } //选好照片,准备制作 $(\'.m-loadBtn\').on("tap", function () { $(\'.m-loadBtn\').css({"color": "#C64100"}); setTimeout(function () { $(\'.m-loadBtn\').css({"color": "white"}); }, 300); if (w.ifImgUpload == true) { $(\'.g-wrap2\').hide(); $(\'.g-wrap3\').show(); $("#m-loadImg").attr("src", w.yaSuoBase64); } else { $(\'.j-pop p\').text("还没有选择喜欢照片吆!"); $(\'.j-pop\').show(); setTimeout(function () { $(\'.j-pop\').hide(); }, 1500); } }); $(".m-step1 .f-scIn1").on("tap", function () { $(".m-sucaiOut").show(); $(".m-sucaiOut").css({"width": "70px", "opacity": "1"}); $(".m-imgBox .f-sucai").attr("src", "img/sucai1.png"); }); $(".m-step1 .f-scIn2").on("tap", function () { $(".m-sucaiOut").show(); $(".m-sucaiOut").css({"width": "70px", "opacity": "1"}); $(".m-imgBox .f-sucai").attr("src", "img/sucai2.png"); }); $(".m-step1 .f-scIn3").on("tap", function () { var sucai3 = localStorage.getItem("imgFlag"); if (sucai3 == "true") { $(".m-sucaiOut").show(); $(".m-sucaiOut").css({"width": "70px", "opacity": "1"}); $(".m-imgBox .f-sucai").attr("src", "img/sucai3.png"); } else { $(\'.j-pop p\').text("分享后可解锁吆!"); $(\'.j-pop\').show(); setTimeout(function () { $(\'.j-pop\').hide(); }, 1500); } }) $(".f-sucaiDelete").on("tap", function () { $(".m-sucaiOut").css({"width": "1px", "opacity": "0", "top": "4px", "left": "100px"}); $(".m-imgBox .f-sucai").attr("src", "img/wu.png"); }); $(".m-step2 .f-scIn1").on("tap", function () { $(".imgKuang .imgK").attr("src", "img/sucai4.png"); }); $(".m-step2 .f-scIn2").on("tap", function () { $(".imgKuang .imgK").attr("src", "img/sucai5.png"); }); $(".m-makeBtn").on("tap", function () { $("#loadingSection").show(); setTimeout(function () { $("#loadingSection").hide(); }, 1800); w.imageMake(); }); $(".m-getBtn").on("tap", function () { $(".m-login").show(); $(".m-mengBan").show(); }); $(".m-closeLogin").on("tap", function () { $(".m-login").hide(); $(".m-mengBan").hide(); }); $(".wx-share").on("tap", function () { $(".wx-share").hide(); $(".m-mengBan").hide(); }); $(".m-oldManBtn").on("tap", function () { $(".wx-share").show(); $(".m-mengBan").show(); w.sendImgSouce(); w.wxReady2(); }); w.initEvent(); }, resize: function () {}, wxConfig: function () { var w = this; var jsapi_ticket, nonceStr, signature, timestamp, getCode; var url = \'http://xxxxxxx/\'; //正式库 //获取config配置 var Url = window.location.href; $.ajax({ type: \'get\', url: \'http:/xxxxxxx\', data: { weixinurl: Url }, timeout: 10000, //10秒超时 callbackParameter: \'callback\', async: false, jsonp: "jsonpcallback", success: function (o) { jsapi_ticket = o.jsapi_ticket; nonceStr = o.nonceStr; signature = o.signature; timestamp = o.timestamp; } }); wx.config({ debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来,若要查看传入的参数,可以在pc端打开,参数信息会通过log打出,仅在pc端时才会打印。 appId: \'xxxxxxxxx\', // 必填,公众号的唯一标识 timestamp: timestamp, // 必填,生成签名的时间戳 nonceStr: nonceStr, // 必填,生成签名的随机串 signature: signature, // 必填,签名,见附录1 jsApiList: [ \'checkJsApi\', \'onMenuShareTimeline\', \'onMenuShareAppMessage\', \'onMenuShareQQ\', \'onMenuShareWeibo\', \'onMenuShareQZone\', \'hideMenuItems\', \'showMenuItems\', \'hideAllNonBaseMenuItem\', \'showAllNonBaseMenuItem\', \'translateVoice\', \'startRecord\', \'stopRecord\', \'onVoiceRecordEnd\', \'playVoice\', \'onVoicePlayEnd\', \'pauseVoice\', \'stopVoice\', \'uploadVoice\', \'downloadVoice\', \'chooseImage\', \'previewImage\', \'uploadImage\', \'downloadImage\', \'getNetworkType\', \'openLocation\', \'getLocation\', \'hideOptionMenu\', \'showOptionMenu\', \'closeWindow\', \'scanQRCode\', \'chooseWXPay\', \'openProductSpecificView\', \'addCard\', \'chooseCard\', \'openCard\' ] // 必填,需要使用的JS接口列表,所有JS接口列表见附录2 }); }, wxReady: function () { wx.ready(function () { wx.onMenuShareAppMessage({ title: \'嘿,我愿意做你的圣诞老人!\', // 分享标题 link: \'http://xxxxxxxxx/index.html\', // 分享链接 desc: \'叮叮当,叮叮当,今年你愿意做我的圣诞老人吗……\', imgUrl: \'http://xxxxxxx/wxbanner.png\', // 分享图标 trigger: function (res) { }, success: function (res) { localStorage.setItem("imgFlag", "true"); }, cancel: function (res) { } }); //alert(\'已注册获取“发送给朋友圈”状态事件\'); wx.onMenuShareAppMessage({ title: \'嘿,我愿意做你的圣诞老人!\', // 分享标题 link: \'http://xxxxxxx/index.html\', // 分享链接 desc: \'叮叮当,叮叮当,今年你愿意做我的圣诞老人吗……\', imgUrl: \'http://xxxxxxx/wxbanner.png\', // 分享图标 trigger: function (res) { }, success: function (res) { localStorage.setItem("imgFlag", "true"); }, cancel: function (res) { } }); }); }, wxReady3: function () { wx.ready(function () { wx.onMenuShareAppMessage({ title: \'嘿,我愿意做你的圣诞老人!\', // 分享标题 link: \'http://xxxxxx/index.html\', // 分享链接 desc: \'叮叮当,叮叮当,今年你愿意做我的圣诞老人吗……\', imgUrl: \'http://xxxxxxxxx/wxbanner.png\', // 分享图标 trigger: function (res) { }, success: function (res) { localStorage.setItem("imgFlag", "true"); $(".f-scInLock").hide(); $(".f-scInLock").css({"width": "0px", "height": "0px", "display": "none"}); }, cancel: function (res) { } }); //alert(\'已注册获取“发送给朋友圈”状态事件\'); wx.onMenuShareAppMessage({ title: \'嘿,我愿意做你的圣诞老人!\', // 分享标题 link: \'http://xxxxxxx/index.html\', // 分享链接 desc: \'叮叮当,叮叮当,今年你愿意做我的圣诞老人吗……\', imgUrl: \'http://xxxxxxx/img/wxbanner.png\', // 分享图标 trigger: function (res) { }, success: function (res) { localStorage.setItem("imgFlag", "true"); $(".f-scInLock").hide(); $(".f-scInLock").css({"width": "0px", "height": "0px", "display": "none"}); }, cancel: function (res) { } }); }); }, wxReady2: function () { var w = this; wx.ready(function () { wx.onMenuShareAppMessage({ title: \'嘿,我愿意做你的圣诞老人!\', // 分享标题 link: \'http://xxxxxxx/sharePage.html?imgName=\' + w.imgNewName, // 分享链接 desc: \'叮叮当,叮叮当,今年你愿意做我的圣诞老人吗……\', imgUrl: \'http://xxxxx/img/wxbanner.png\', // 分享图标 trigger: function (res) { }, success: function (res) { localStorage.setItem("imgFlag", "true"); $(".wx-share").hide(); $(".m-mengBan").hide(); $(".f-scInLock").hide(); $(".f-scInLock").css({"width": "0px", "height": "0px", "display": "none"}); }, cancel: function (res) { } }); //alert(\'已注册获取“发送给朋友圈”状态事件\'); wx.onMenuShareAppMessage({ title: \'嘿,我愿意做你的圣诞老人!\', // 分享标题 link: \'http://xxxxx/sharePage.html?imgName=\' + w.imgNewName, // 分享链接 desc: \'叮叮当,叮叮当,今年你愿意做我的圣诞老人吗……\', imgUrl: \'http://xxxxxx/img/wxbanner.png\', // 分享图标 trigger: function (res) { }, success: function (res) { localStorage.setItem("imgFlag", "true"); $(".wx-share").hide(); $(".m-mengBan").hide(); $(".f-scInLock").hide(); $(".f-scInLock").css({"width": "0px", "height": "0px", "display": "none"}); }, cancel: function (res) { } }); }); }, //照片上传函数 uploadImg: function () { var w = this; var loadFile = document.getElementById("file"); loadFile.addEventListener("change", function () { $(".m-thewen33").hide(); $(".m-thewen").show(); $(".f-theImg").css({"width": "100%"}); w.ifImgUpload = true; $("#loadingSection").show(); setTimeout(function () { $("#loadingSection").hide(); }, 2700); var oFile = loadFile.files[0]; console.log(oFile); if (!new RegExp("(jpg|jpeg|png)+", "gi").test(oFile.type)) { alert("照片上传:文件类型必须是JPG、JPEG、PNG"); return; } //新建一个文件对象 var reader = new FileReader(); //读出这个文件的 base64 的数据流,这个函数是专门转base64的,不加他,下面没法用base64 reader.readAsDataURL(oFile); //因为 iOS 不支持 FileReader 的onload回调,所以,这里只能加延迟处理了 setTimeout(function () { //先取照片的拍摄方向角 EXIF.getData(oFile, function () { EXIF.getAllTags(this); var zzz = EXIF.getTag(this, \'Orientation\'); var spanData = document.getElementsByClassName("tspanme"); if (zzz == 1 || zzz == undefined) { spanData[0].innerText = 0; // alert("0度"); // console.log("0度"); } else if (zzz == 6) { spanData[0].innerText = 90; // alert("90度"); // console.log("90度"); } else if (zzz == 8) { spanData[0].innerText = 270; // alert("270度"); // console.log("270度"); } else if (zzz == 3) { spanData[0].innerText = 180; // alert("180度"); // console.log("180度"); } }); var img = new Image(); img.src = reader.result; //根据拍摄角度不同,把图片旋转适当角度,纠正图片 //除了修改方向,不做其他任何修改 setTimeout(function () { var spanData = document.getElementsByClassName("tspanme"); var theText = spanData[0].innerText; console.log("这个保存的角度" + theText); var canvas = document.createElement("canvas"); var cantent = canvas.getContext("2d"); var width = img.naturalWidth, height = img.naturalHeight; if (theText == 0) { //0 canvas.width = width; canvas.height = height; cantent.drawImage(img, 0, 0, width, height, 0, 0, width, height); console.log("0"); } else if (theText == 90) { canvas.width = height; canvas.height = width; cantent.save(); cantent.rotate(90 * Math.PI / 180); cantent.drawImage(img, 0, -height); cantent.restore(); console.log("90"); } else if (theText == 180) { canvas.width = width; canvas.height = height; cantent.save(); cantent.rotate(180 * Math.PI / 180); cantent.drawImage(img, -width, -height); cantent.restore(); console.log("180"); } else if (theText == 270) { canvas.width = height; canvas.height = width; cantent.save(); cantent.rotate(270 * Math.PI / 180); cantent.drawImage(img, -width, 0); cantent.restore(); console.log("270"); } w.theDataBase = canvas.toDataURL(); setTimeout(function () { w.yaSuoImg(); }, 200); }, 300); }, 400); }) }, //处理图片的函数 imageMake: function () { var w = this, theAngle = 0, imgHat = document.getElementsByClassName("f-sucai")[0]; theAngle = getEletAngle(); console.log("当前素材的角度:" + theAngle); var canvasHat = document.createElement("canvas"), cantentHat = canvasHat.getContext("2d"), widthHat = imgHat.naturalWidth, heightHat = imgHat.naturalWidth; console.log(widthHat); console.log(heightHat); console.log(theAngle); canvasHat.width = widthHat; canvasHat.height = heightHat; cantentHat.save(); cantentHat.translate(widthHat / 2, heightHat / 2); cantentHat.rotate(theAngle * Math.PI / 180); cantentHat.translate(-widthHat / 2, -heightHat / 2); cantentHat.drawImage(imgHat, 0, 0); cantentHat.restore(); imgHat.src = canvasHat.toDataURL(); setTimeout(function () { var img1 = document.getElementById("m-loadImg"), width = img1.naturalWidth, height = img1.naturalHeight, canvas = document.createElement("canvas"), cantent = canvas.getContext("2d"), oldTop = $("#m-loadImg")[0].offsetTop, oldLeft = $("#m-loadImg")[0].offsetLeft, imgK = document.getElementsByClassName("imgK")[0], imgKuangOut = document.getElementsByClassName("imgKuang")[0], imgSuCai = document.getElementsByClassName("f-sucai")[0], imgSuCaiOut = document.getElementsByClassName("m-sucaiOut")[0], //缩放之后图片的宽度 scWidth = imgSuCai.width, scHeight = imgSuCai.height, scOffsetTop = imgSuCaiOut.offsetTop, scOffsetLeft = imgSuCaiOut.offsetLeft; // console.log("------------------------"); // console.log(imgSuCai); // console.log(imgSuCaiOut); // console.log(scWidth); // console.log(scHeight); // console.log(scOffsetTop); // console.log(scOffsetLeft); canvas.width = 270; canvas.height = 194; // console.log("原大小:"); // console.log(img1.naturalWidth); // console.log(img1.naturalHeight); // console.log(imgK.naturalWidth); // console.log(imgK.naturalHeight); // console.log("相框的上定位" + imgK.offsetTop); // console.log("相框的下定位" + imgK.offsetLeft); // // console.log("插入素材的数据:"); // console.log(scWidth); // console.log(scHeight); // console.log(scOffsetTop); // console.log(scOffsetLeft); var yasuobi = width / 270; // console.log("压缩之后的宽度" + width); // console.log("position的上定位" + oldTop); // console.log("position的左定位" + oldLeft); // alert(-oldLeft*yasuobi+"水平位移"); // alert(-oldTop*yasuobi+"垂直位移"); setTimeout(function () { //画上照片 cantent.drawImage(img1, 0, 0, width, height, oldLeft, oldTop, 270, height / yasuobi); //画上素材 cantent.drawImage(imgSuCai, 0, 0, imgSuCai.naturalWidth, imgSuCai.naturalHeight, scOffsetLeft, scOffsetTop, scWidth, scHeight); //画上相框 cantent.drawImage(imgK, 0, 0, imgK.naturalWidth, imgK.naturalHeight, imgKuangOut.offsetLeft, imgKuangOut.offsetTop, imgK.width, imgK.height); w.hcBase64 = canvas.toDataURL(); //做最终的合成 var imgZong = new Image(); imgZong.src = w.hcBase64; setTimeout(function () { var canvas111 = document.createElement("canvas"), cantent111 = canvas111.getContext("2d"), imgKuangTrue = document.getElementById("g-kuangTrue"), theEWM = document.getElementById("g-ewm"); canvas.width = 326.5; canvas.height = 335; cantent.drawImage(imgKuangTrue, 0, 0, imgKuangTrue.naturalWidth, imgKuangTrue.naturalHeight, 0, 0, 326.5, 335); cantent.drawImage(imgZong, 0, 0, imgZong.naturalWidth, imgZong.naturalHeight, 28, 47, 270, 194); cantent.drawImage(theEWM, 0, 0, theEWM.naturalWidth, theEWM.naturalHeight, 236, 249, 64, 64); w.base64Zong = canvas.toDataURL(); setTimeout(function () { $(".g-wrap3").hide(); $(".g-wrap4").show(); $(".f-shuchu").attr("src", w.base64Zong); }, 400) }, 500) // console.log("合成的图片"); //console.log(w.theDataBase.length/1024+"KB"); }, 400) }, 700) }, //压缩函数 yaSuoImg: function () { var w = this; yaWidth = w.setWidth / 2, // yaWidth 这个是实际照片一半的大小,通过设置它实现压缩 canvas = document.createElement("canvas"), cantent = canvas.getContext("2d"), img = new Image(); img.src = w.theDataBase; //这个iOS是支持的,iOS不支持的是file对象的onload函数 img.onload = function () { var width = img.naturalWidth, height = img.naturalHeight, //图片的压缩比 theRadio = img.naturalWidth / yaWidth; //如果图片尺寸小于设定画布的尺寸,不压缩,输出原图 if (theRadio <= 1) { theRadio = 1; canvas.width = img.naturalWidth; canvas.height = img.naturalHeight; canvas.style.width = img.naturalWidth / 2 + "px"; canvas.style.height = img.naturalHeight / 2 + "px"; cantent.drawImage(img, 0, 0, width, height, 0, 0, width, height); } else { //为了避免失真,canvas实际大小设置为显示大小的2倍 canvas.width = yaWidth * 2; canvas.height = (height / theRadio) * 2; canvas.style.width = yaWidth + "px"; canvas.style.height = height / theRadio + "px"; //注意,图片要取实际大小裁剪,但是显示大小选择和canvas同样的大小,这样显示的不失真、小,但实际的大。不失真 cantent.drawImage(img, 0, 0, width, height, 0, 0, yaWidth * 2, height / theRadio * 2); console.log("压缩之后的图片大小,宽: " + yaWidth * 2 + "高: " + height / theRadio * 2); } // console.log("************************"); // console.log(theRadio); // console.log(width); // console.log(height); // console.log(yaWidth * 2); // console.log((height / theRadio) * 2); w.yaSuoBase64 = canvas.toDataURL(); setTimeout(function () { $(".g-wrap2 .f-theImg").attr("src", w.yaSuoBase64); // console.log("压缩之后大小"); // console.log(w.yaSuoBase64.length / 1024 + "KB"); // alert("压缩之后大小:"+w.yaSuoBase64.length/1024+"KB"); }, 200) }; }, initEvent: function () { var w = this; $(\'.getCode\').on(\'tap\', function () { $(\'.m-phone\').blur(); $(\'.m-code\').blur(); var phoneNum = $(\'.m-phone\').val(); if (phoneNum == \'\') { $(\'.j-pop\').fadeIn(); $(\'.j-pop p\').text(\'手机号不能为空\'); setTimeout(function () { $(\'.j-pop\').fadeOut(); }, 2000); return false; } else if (!/^1[3|4|5|7|8][0-9]{9}$/.test(phoneNum)) { $(\'.j-pop\').fadeIn(); $(\'.j-pop p\').text(\'手机号格式不正确\'); setTimeout(function () { $(\'.j-pop\').fadeOut(); }, 2000); return false; } if (w.flag == true) { w.codeAjax(); var time = 60; $(\'.getCode\').attr("disabled", "disabled"); w.flag = false; var t = setInterval(function () { time--; $(\'.getCode\').text(time + "s后再发送"); $(\'.getCode\').css("background", \'#EFEFEF\'); $(\'.getCode\').css("color", \'gray\'); if (time == 0) { $(\'.getCode\').removeAttr(\'disabled\'); clearInterval(t); $(\'.getCode\').text("获取验证码"); w.flag = true; $(\'.getCode\').css("color", \'#CB402F\'); } }, 1000); } }); $(\'.m-getBook\').on(\'tap\', function () { var codeTxt = $(\'.m-code\').val(); var phoneNum = $(\'.m-phone\').val(); if (phoneNum == \'\') { $(\'.j-pop\').fadeIn(); $(\'.j-pop p\').text(\'手机号不能为空\'); setTimeout(function () { $(\'.j-pop\').fadeOut(); }, 2000); } else if (codeTxt == \'\') { $(\'.j-pop\').fadeIn(); $(\'.j-pop p\').text(\'验证码不能为空\'); setTimeout(function () { $(\'.j-pop\').fadeOut(); }, 2000); return false; } else if (/^1[3|4|5|7|8][0-9]{9}$/.test(phoneNum) && codeTxt != "") { $.ajax({ type: \'post\', url: w.jsonUrl, data: "method=xxxx" + "&content=" + JSON.stringify({ customerName: phoneNum, sendBookActivityCode: w.bookCode, checkCode: codeTxt }), callbackParameter: \'callback\', async: true, jsonp: "jsonpcallback", success: function (o) { if (o.status == 1) { $(\'.j-pop\').fadeIn(); $(\'.j-pop p\').text(\'领取成功!\'); setTimeout(function () { $(\'.j-pop\').fadeOut(); window.location.href = "http://xxxxx"; }, 800); } else if (o.status == 2) { $(\'.j-pop\').fadeIn(); $(\'.j-pop p\').text("您已领取过该书籍"); setTimeout(function () { $(\'.j-pop\').fadeOut(); window.location.href = "http://xxxx"; }, 2000); } } }); } else if (!/^1[3|4|5|7|8][0-9]{9}$/.test(phoneNum)) { $(\'.j-pop\').fadeIn(); $(\'.j-pop p\').text(\'手机号错误\'); setTimeout(function () { $(\'.j-pop\').fadeOut(); }, 2000); } }); }, codeAjax: function () { var w = this; var phoneNum = $(\'.m-phone\').val(); if (/^1[3|4|5|6|7|8][0-9]{9}$/.test(phoneNum)) { $.ajax({ type: \'post\', url: w.jsonUrl, timeout: 2000, //10秒超时 data: "method=xxxx" + "&content=" + JSON.stringify({ mobileNum: phoneNum, type: \'LOGIN_CHECK\' }), callbackParameter: \'callback\', async: false, jsonp: "jsonpcallback", success: function (o) { if (o.status == 1) { $(\'.j-pop\').fadeIn(); $(\'.j-pop p\').text(\'短信发送成功\'); setTimeout(function () { $(\'.j-pop\').fadeOut(); }, 2000); } else if (o.status == 0) { if (o.code == "10002006") { $(\'.j-pop\').fadeIn(); $(\'.j-pop p\').text(\'请求过于频繁,一分钟只能请求一次\'); setTimeout(function () { $(\'.j-pop\').fadeOut(); }, 2000); } else if (o.code == "10002003") { $(\'.j-pop\').fadeIn(); $(\'.j-pop p\').text(\'短信发送失败\'); setTimeout(function () { $(\'.j-pop\').fadeOut(); }, 2000); } } } }); } else { $(\'.j-pop\').fadeIn(); $(\'.j-pop p\').text(\'手机号格式不正确\'); setTimeout(function () { $(\'.j-pop\').fadeOut(); }, 2000); } }, //上传做好的图片,并获取后台生成的图片路径 sendImgSouce: function () { var w = this; console.log("开始上传"); $.ajax({ type: \'post\', url: \'http://xxxxxxx/upload/activityBase64\', data: { pictureStream: w.hcBase64, activityId: "1508342400" }, timeout: 10000, //10秒超时 callbackParameter: \'callback\', async: false, jsonp: "jsonpcallback", success: function (o) { console.log("回调"); console.log(o); var b = o.data.split("?"); var c = b[0].split("event/"); w.imgNewName = c[1]; console.log(w.imgNewName); } }); console.log("上传成功"); } } win.page = obj; })(window)
//图片操作获取具体数据的函数 function imageMaker(eleID,otherID){ var oldX=0, oldY=0, ratio=1; $(""+eleID+"").on("touchstart",imgTouchStart); $(""+eleID+"").on("touchmove",imgTouchMove); $(""+eleID+"").on("touchend",imgTouchEnd); //手指按下时,捕捉事件,取坐标值,设置参数 function imgTouchStart(e){ //阻止事件冒泡的 e.stopImmediatePropagation(); e.preventDefault(); $(""+eleID+"").attr("draggable",true); oldX = e.originalEvent.touches[0].clientX; oldY = e.originalEvent.touches[0].clientY; } function imgTouchMove(e){ e.stopImmediatePropagation(); //阻止事件冒泡,避免,移动照片时,整个页面也会随滚动条移动 e.preventDefault(); if($(""+eleID+"").attr("draggable")) { var x = e.originalEvent.touches[0].clientX - oldX; var y = e.originalEvent.touches[0].clientY - oldY; var oldTop = $(""+eleID+"")[0].offsetTop; var oldLeft = $(""+eleID+"")[0].offsetLeft; var NewTop = y + parseInt(oldTop); var newLeft = x + parseInt(oldLeft); $(""+eleID+"").css({"top":NewTop+"px","left":newLeft+"px"}); oldX = e.originalEvent.touches[0].clientX; oldY = e.originalEvent.touches[0].clientY; } } //手指拿开时,设置参数 function imgTouchEnd(e) { e.stopImmediatePropagation(); e.preventDefault(); $(""+eleID+"").attr("draggable",false); } $(".shape1").on("touchstart",function(e){ setImgSmall(); }); $(".shape3").on("touchstart",function(e){ setImgBig(); }); $(".shape2").on("touchstart",function(e){ setImgAngle(); }); //放大、缩小的 function setImgBig() { var width = parseInt($(""+otherID+"").width()) * 1.03; var height = parseInt($(""+otherID+"").height()) * 1.03; $(""+otherID+"").css({ \'width\': width+"px", \'height\': height+"px", }); console.log("打印我"+width); } function setImgSmall() { var width = parseInt($(""+otherID+"").width()) * 0.97; var height = parseInt($(""+otherID+"").height()) * 0.97; $(""+otherID+"").css({ \'width\': width+"px", \'height\': height+"px", }); } function setImgAngle(){ //这里只取图片的角度,值旋转图片。外框不做操作了 var theAngle = getEletAngle(); var angleNow = theAngle+10; $(".f-sucai").css({\'transform\': "rotate("+angleNow+"deg)"}); } } //获取元素旋转角度 function getEletAngle(eletClass){ var el = document.getElementsByClassName("f-sucai")[0]; console.log(el); var st = window.getComputedStyle(el, null); var tr = st.getPropertyValue("-webkit-transform") || st.getPropertyValue("-moz-transform") || st.getPropertyValue("-ms-transform") || st.getPropertyValue("-o-transform") || st.getPropertyValue("transform") || "FAIL"; //console.log(\'Matrix: \' + tr); var values = tr.split(\'(\')[1].split(\')\')[0].split(\',\'); var a = values[0]; var b = values[1]; var angle = Math.round(Math.atan2(b, a) * (180 / Math.PI)); //console.log(\'Rotate: \' + angle + \'deg\'); return angle; }