// ==UserScript==
// @name         Anti Peep Screen 防窥屏
// @namespace    https://greasyfork.org/zh-CN/scripts/389727
// @version      0.3.1
// @description  当你发现有人窥屏，就按 F2。按 ESC 消除。
// @author       Phuker
// @match        *://*/*
// @grant        none
// @run-at       document-start
// ==/UserScript==
/*
Forked from jinyu121/ShameEyesdroper.user.js
https://gist.github.com/jinyu121/9e028686f35f330b52f60a30e7ef8ba3
*/
(function() {
'use strict';
// - - - - - - - - - - 用户配置开始 Start User Config - - - - - - - - - -
// 显示文本
// display text
var option_text = '有沙雕正在窥屏';
// 不透明度，0.0 - 1.0，数值越大越不透明，建议 0.6 - 1.0
// opacity, 0.0 - 1.0
var option_opacity = '0.85';
// 主题
// color theme
var option_theme = 'golden';
// 触发和恢复按键
// keys
var option_key_activate = 'F2';
var option_key_cancel = 'Escape';
// - - - - - - - - - - 用户配置结束 End User config - - - - - - - - - -
// background, text
var option_themes = {
'golden': ['#17254D', '#F0E360'],    // 土豪金
'normal': ['#fff', '#666'],          // 普通 白底黑字
'dark': ['#333', '#ccc'],            // 黑底白字 暗黑主题
'slate': ['#19191f', '#ebebf4'],     // 蓝灰 暗色
}
var option_background_color = option_themes[option_theme][0];
var option_text_color = option_themes[option_theme][1];
function AntiPeepScreen(){
var svg='<svg width="600" height="400" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">\
<rect width="100%" height="100%" style="fill:' + option_background_color + ';" />\
<text style="font-weight:bold; font-size:72px; fill:' + option_text_color + ';" transform="matrix(.70710678 -.70710678 .70710678 .70710678 -52.549041 262.010392)" x="26.015705" y="220.4375">'+ option_text +'</text>\
</svg>';
var bg_text="url(data:image/svg+xml;base64,"+btoa(unescape(encodeURIComponent(svg)))+")";
var div = document.createElement('div');
div.className = 'phuker-anti-peep-screen';
div.style.cssText = '\
z-index:65535;\
position:fixed;\
top:0;\
left:0;\
bottom:0;\
right:0;\
opacity:' + option_opacity + ';\
background-image:' + bg_text + ';\
background-repeat:repeat;\
background-position:center;\
overflow":"hidden";\
';
document.body.appendChild(div);
};
function ClearAntiPeepScreen(){
document.getElementsByClassName('phuker-anti-peep-screen')[0].remove();
}
document.addEventListener("keydown", function(e){
if(e.key === option_key_activate){
AntiPeepScreen();
document.phuker_anti_peep_level = (document.phuker_anti_peep_level | 0) + 1;
}
if(e.key === option_key_cancel){
if(document.phuker_anti_peep_level){
ClearAntiPeepScreen();
e.preventDefault();
document.phuker_anti_peep_level -= 1;
}
}
});
})();