// ==UserScript==
// @name         知网CNKI小助手
// @version      0.3
// @description  CNKI tools.
// @author       leftjie
// @match        *://kns.cnki.net/KXReader/Detail?*
// @match        *://new.oversea.cnki.net/KXReader/Detail?*
// @match        *://new.big5.oversea.cnki.net/KXReader/Detail?*
// @match        *://new.gb.oversea.cnki.net/KXReader/Detail?*
// @match        *://*/KXReader/Detail?*
// @grant        none
// @namespace https://greasyfork.org/users/244539
// ==/UserScript==
(function() {
'use strict';
window.onload = function(){
function add_size(){
var c_size = document.getElementsByClassName('main')[0];
var cur_size = window.getComputedStyle(c_size).fontSize.replace("px","")-0;
var main = document.getElementsByClassName('main')[0];
main.style.fontSize=(cur_size+1)+"px";
var ps = main.getElementsByClassName('p1');
for(var i=0;i<ps.length;i++){
ps[i].style.fontSize=(cur_size+1)+"px";
}
}
function redu_size(){
var c_size = document.getElementsByClassName('main')[0];
var cur_size = window.getComputedStyle(c_size).fontSize.replace("px","")-0;
var main = document.getElementsByClassName('main')[0];
main.style.fontSize=(cur_size-1)+"px";
var ps = main.getElementsByClassName('p1');
for(var i=0;i<ps.length;i++){
ps[i].style.fontSize=(cur_size-1)+"px";
}
}
function change_mode(color){
localStorage.bgc=color;
var c_bgc = document.getElementsByTagName('body')[0];
var c_main = document.getElementsByClassName('main')[0];
var c_dl = document.getElementsByTagName('dl');
var c_p = document.getElementsByTagName('p');
var c_nav = document.getElementsByClassName('ecp_top-nav')[0];
var c_con = document.getElementsByClassName('content')[0];
var c_tips = document.getElementsByClassName('tips')[0];
var c_refer = document.getElementsByClassName('refer')[0];
var c_h4 = document.getElementsByClassName('refer')[0].getElementsByTagName('h4')[0];
var c_briefs = document.getElementsByClassName('brief');
c_bgc.style.backgroundColor = localStorage.bgc;
c_nav.style.backgroundColor = localStorage.bgc;
c_con.style.backgroundColor = localStorage.bgc;
c_tips.style.backgroundColor = localStorage.bgc;
c_main.style.background = localStorage.bgc;
c_refer.style.background = localStorage.bgc;
c_h4.style.background = localStorage.bgc;
for(var i=0;i<c_briefs.length;i++){
c_briefs[i].style.background = localStorage.bgc;
}
for(var j=0;j<c_dl.length;j++){
c_dl[j].style.backgroundColor = localStorage.bgc;
}
for(var m=0;m<c_p.length;m++){
c_p[m].style.backgroundColor = localStorage.bgc;
}
}
function change_mode_auto(){
change_mode(localStorage.bgc);
var select_default = document.getElementById("protect_eyes_select");
for(var i=0; i<select_default.options.length; i++){
if(select_default.options[i].value == localStorage.bgc){
select_default.options[i].selected = true;
break;
}
}
}
var font_size_button_plus = document.createElement('span');
font_size_button_plus.title = "增大字体"
font_size_button_plus.id = "font_size_button_plus";
font_size_button_plus.innerText = "字✚";
font_size_button_plus.style.fontSize="14px";
font_size_button_plus.style.display="block";
font_size_button_plus.style.lineHeight="18px";
font_size_button_plus.style.border="1px solid #e2e2e2";
font_size_button_plus.style.borderRadius="2px";
font_size_button_plus.style.backgroundColor="#f5f5f5";
font_size_button_plus.style.color="#504f4f";
font_size_button_plus.style.float="left";
font_size_button_plus.style.padding="3px";
font_size_button_plus.style.position = "absolute";
font_size_button_plus.style.right = "0";
font_size_button_plus.style.bottom = "-60px";
font_size_button_plus.style.width = "28px";
var font_size_button_redu = document.createElement('span');
font_size_button_redu.title = "减小字体"
font_size_button_redu.innerText = "字 ━";
font_size_button_redu.id = "font_size_button_redu";
font_size_button_redu.style.fontSize="14px";
font_size_button_redu.style.display="block";
font_size_button_redu.style.lineHeight="18px";
font_size_button_redu.style.border="1px solid #e2e2e2";
font_size_button_redu.style.borderRadius="2px";
font_size_button_redu.style.backgroundColor="#f5f5f5";
font_size_button_redu.style.color="#504f4f";
font_size_button_redu.style.float="left";
font_size_button_redu.style.padding="3px";
font_size_button_redu.style.position = "absolute";
font_size_button_redu.style.right = "0";
font_size_button_redu.style.bottom = "-30px";
font_size_button_redu.style.width = "28px";
var protect_eyes = document.createElement('select');
protect_eyes.insertAdjacentHTML("beforeend",'<option value="none" selected>护眼模式</option><option value="#FFFFFF">银河白</option><option value="#FAF9DE">杏仁黄</option><option value="#FFF2E2">秋叶褐</option><option value="#FDE6E0">胭脂红</option><option value="#E3EDCD">青草绿</option><option value="#DCE2F1">海天蓝</option><option value="#E9EBFE">葛巾紫</option><option value="#EAEAEF">极光灰</option>');
protect_eyes.style.width="36px";
protect_eyes.id="protect_eyes_select";
protect_eyes.style.fontSize="12px";
document.getElementsByClassName('backtop')[0].appendChild(protect_eyes);
document.getElementsByClassName('backtop')[0].appendChild(font_size_button_plus);
document.getElementsByClassName('backtop')[0].appendChild(font_size_button_redu);
document.getElementById("font_size_button_redu").addEventListener("click", redu_size);
document.getElementById("font_size_button_plus").addEventListener("click", add_size);
document.getElementById("protect_eyes_select").addEventListener("change", function(){change_mode(this.value)});
change_mode_auto()
};
})();