// ==UserScript==
// @name         Shame Eyesdroper
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        *://*/*
// @grant        none
// @require https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js
// @run-at document-start

// ==/UserScript==

(function() {
    'use strict';
    function ShameEyesdroper(){
        var textArray = [
            '有沙雕正在窥屏',
            '沙雕窥屏中'
        ];
        var randomNumber = Math.floor(Math.random()*textArray.length);
        var div = document.createElement('div');
        var svg='<svg width="600" height="400" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><text style="font-weight:bold;opacity:.2;font-size:72" transform="matrix(.70710678 -.70710678 .70710678 .70710678 -52.549041 262.010392)" x="26.015705" y="220.4375">'+textArray[randomNumber]+'</text></svg>';
        var bg_text="url(data:image/svg+xml;base64,"+btoa(unescape(encodeURIComponent(svg)))+")";
        $(div).css({
            "z-index":65535,
            "position":"fixed",
            "top":0,
            "left":0,
            "bottom":0,
            "right":0,
            "opacity":0.5,
            "background-image":bg_text,
            "background-repeat":"repeat",
            "background-position":"center",
            "overflow":"hidden"
        });
        $("body").append(div);
    };

    document.addEventListener("keydown", function(e){
        if("F1"===e.key){
            ShameEyesdroper();
        }
    });

})();