// ==UserScript==

// @name 解除知网复制限制CNKI copy !!

// @namespace http://tampermonkey.net/

// @version 1.1.7

// @description Lifting copy restrictions on CNKI online reading

// @description:zh-CN 解除知网在线阅读时复制限制

// @author auko

// @supportURL https://github.com/aukocharlie/my-script

// @include *://*.cnki.net*/*/Detail*

// @grant none

// ==/UserScript==

(function() {

'use strict';

var selectText = "";

document.body.οnkeydοwn=function(e){

if(e.ctrlKey && e.keyCode == 67) {

copy();

return false;

}

};

document.body.onmouseup = function(e){

getSelectText();

}

var copytext = document.getElementById("copytext");

var parent = document.getElementsByClassName("inner")[0];

if(copytext!== null) parent.removeChild(copytext);

var proxyBtn = document.createElement("A");

parent.insertBefore(proxyBtn,parent.children[0]);

proxyBtn.setAttribute("id","proxy");

proxyBtn.innerHTML="复制";

document.getElementById("proxy").onclick = function(e){

if(document.getElementById("aukoToProxy")){

document.getElementById("aukoToProxy").value = selectText;

document.getElementById("aukoToProxy").select();

}else{

var temp = document.createElement('input');

temp.value = selectText;

temp.setAttribute("id","aukoToProxy");

document.body.appendChild(temp);

temp.select();

temp.style.opacity='0';

}

copy();

}

function getSelectText() {

if(document.selection) {

if(document.selection.createRange().text && document.selection.createRange().text !== ''){

selectText = document.selection.createRange().text;

}

} else {

if(document.getSelection()&& document.getSelection().toString() !== ''){

selectText = document.getSelection().toString();

}

}

}

function copy(){

try{

if(document.execCommand("Copy","false",null)){

console.log("复制成功！");

}else{

console.warn("复制失败！");

}

}catch(err){

console.warn("复制错误！")

}

return false;

}

})();