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