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228 lines
6.5 KiB
228 lines
6.5 KiB
/*! |
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* |
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* @author: diandian & alanzhang |
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* @date: 2016/8/19 |
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* @overview: [截屏后,按粘贴快捷键ctrl+v上传,] |
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* @兼容性说明: IE11,Firefox,chrome |
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* |
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*/ |
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'use strict'; |
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(function(root, factory){ |
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if (typeof define === 'function' && define.amd) { |
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// AMD |
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define([], factory); |
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} else if (typeof exports === 'object') { |
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// Node, CommonJS-like |
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module.exports = factory(); |
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} else { |
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// Browser globals (root is window) |
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root.ctrlVUtil = factory(); |
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} |
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}(this, function(){ |
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function ctrlVUtil(option){ |
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// 鼠标在该元素上,使用ctrl+v键时上传 |
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this.targetElement = null; |
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// 用于响应paste事件的元素,如果页面不传递,则创建该元素,并位于targetElement前面 |
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this.uploadInput = null; |
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// 默认的上传地址 |
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this.uploadUrl = "http://www.oa.com/screenshot/create-file"; |
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// 对于读取的图片base64,前缀为data:image/jpg;base64,base64content |
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// isCompleteImg为false则去掉前缀直接上传内容部分,为true则上传完整的base64字符串 |
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this.isCompleteImg = false; |
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var that = this; |
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// 合并参数 |
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that.mixinConfig(option); |
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// 鼠标移入和点击时上传,移出时失焦 |
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that.targetElement.addEventListener("mouseover", function() { |
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that.uploadInput.focus(); |
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}); |
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that.targetElement.addEventListener("click", function() { |
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that.uploadInput.focus(); |
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}); |
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// 移除鼠标则input失去交掉 |
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that.targetElement.addEventListener("mouseleave", function() { |
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that.uploadInput.blur(); |
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}); |
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// 监听paste的事件 |
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that.uploadInput.addEventListener('paste', function(e) { |
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that.handlePaste(e); |
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}); |
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} |
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/** |
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* [mixinConfig 整合参数] |
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* @param {[type]} option [description] |
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* @return {[type]} [description] |
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*/ |
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ctrlVUtil.prototype.mixinConfig = function(option){ |
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this.targetElement = option.targetElement || document.querySelector(".js-upload"); |
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this.uploadInput = this.createInputTarget(); |
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this.isCompleteImg = "isCompleteImg" in option ? option.isCompleteImg : this.isCompleteImg; |
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// 上传地址 |
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this.uploadUrl = option.uploadUrl || this.uploadUrl; |
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// 除了图片内容以外的其他数据 |
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this.data = option.data; |
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// 上传成功时的回调函数 |
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this.success = option.success || function(data) { |
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console.log(data); |
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}; |
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// 上传失败时的回调函数 |
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this.error = option.error || function(error) { |
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console.log(error); |
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}; |
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}; |
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/** |
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* [createInputTarget 创建div元素,用于响应paste事件] |
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* @return {Element} [description] |
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*/ |
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ctrlVUtil.prototype.createInputTarget = function() { |
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var imgContinaer = document.createElement("div"); |
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// 使其不可见 |
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imgContinaer.style.cssText = "border:none;margin:0;padding:0;font-size: 0;height:1px;width:1px;opacity:0;position:fixed;z-index:-1;"; |
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// 让其可编辑,能响应paste事件 |
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imgContinaer.contentEditable = true; |
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imgContinaer.class = "ui-ctrlv-uploadInput"; |
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// 插入targeElementn前面 |
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this.targetElement.parentNode.insertBefore(imgContinaer, this.targetElement); |
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return imgContinaer; |
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}; |
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/** |
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* [handlePaste 处理粘贴行为] |
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* @param {Event} e [粘贴事件] |
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* @return {[type]} [description] |
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*/ |
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ctrlVUtil.prototype.handlePaste = function(e){ |
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var that = this; |
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// webkit 内核支持items方法 |
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if (e && e.clipboardData && e.clipboardData.items) { |
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// 获取item |
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var item = e.clipboardData.items[0], |
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that = this; |
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if (item.type.indexOf('image') != -1) { |
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var blob = item.getAsFile(); |
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// 创建读取对象 |
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var fileReader = new FileReader(); |
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// 将文件读取为字符串 |
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fileReader.readAsDataURL(blob); |
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fileReader.addEventListener('load', function(e) { |
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var file = e.target.result; |
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that.send(file); |
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}, false); |
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} else { |
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//that.alertMsg("请粘贴image类型"); |
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layer.msg('请粘贴image类型!'); |
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} |
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// firefox无法使用items方法,在粘贴时,图片会作为img标签插入targetElement中, |
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// 获取img标签的src内容进行上传 |
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} else { |
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setTimeout(function() { |
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var $img = that.uploadInput.querySelector("img"); |
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if ($img) { |
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that.send($img.src); |
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} else { |
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//that.alertMsg("浏览器不支持剪贴板操作"); |
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layer.msg('当前浏览器不支持剪贴板操作!'); |
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return; |
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} |
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}, 200); |
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} |
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}; |
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/** |
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* [send 上传图片] |
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* @param {string} imgcontent [图片内容base64格式] |
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* @return {[type]} [description] |
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*/ |
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ctrlVUtil.prototype.send = function(imgcontent) { |
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//自己添加的,显示上传加载 |
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layer.load(); |
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var that = this; |
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that.uploadInput.innerHTML = ""; |
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var data = that.data || {}; |
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// 根据sCompleteImg来决定上传的是整体的base64字符串还是仅仅为内容部分 |
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data.content = this.isCompleteImg ? imgcontent : imgcontent.split(';')[1].split(',')[1]; |
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var xhr = new XMLHttpRequest(); |
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xhr.open("post",that.uploadUrl,true); |
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xhr.onreadystatechange = function(e) { |
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if (xhr.readyState == 4) { |
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if (xhr.status == 200) { |
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var ret = JSON.parse(xhr.responseText); |
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that.success && that.success(ret); |
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} else { |
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that.error && that.error(e, xhr); |
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} |
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} |
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}; |
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xhr.onerror = function(e) { |
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that.error && that.error(e, xhr); |
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}; |
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xhr.setRequestHeader("Content-type","application/x-www-form-urlencoded"); |
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var dataString = []; |
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for(var key in data){ |
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dataString.push(key+"="+encodeURIComponent(data[key])); |
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} |
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xhr.send(dataString.join("&")); |
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}; |
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ctrlVUtil.prototype.alertMsg = function(content){ |
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alert(content); |
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} |
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// 暴露构造函数 |
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return ctrlVUtil; |
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})); |
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