// ==UserScript==
// @name         Say hello
// @namespace    com.example.hello
// @version      0.1
// @description  When you open the site example.com it says "HELLO"
// @author       You
// @match        www.example.com
// ==/UserScript==

function GM_addStyle (cssString)

 GM.addStyle('#note{color: white; background: #3385ff!important;border-bottom: 1px solid #2d7');

function GM_addElement(tagName, attributes)

function GM_addElement(parentNode,tagName, attributes)

GM_addElement('script', {
  textContent: 'window.foo = "bar";'
});

GM_addElement('script', {
  src: 'https://example.com/script.js',
  type: 'text/javascript'
});

GM_addElement(document.getElementsByTagName('div')[0], 'img', {
  src: 'https://example.com/image.png'
});

GM_addElement(shadowDOM, 'style', {
  textContent: 'div { color: black; };'
});

function GM_setValue(name,value)

GM_setValue("foo", "bar");
GM_setValue("count", 100);
GM_setValue("active", true);
GM_setValue("data", {
  name: 'Andy',
  age: 18
});

function GM_getValue(name, defaultValue)

GM_setValue("foo", "bar");
GM_setValue("count", 100);
GM_setValue("active", true);
GM_setValue("data", {
  name: 'Andy',
  age: 18
});

var info = `foo = ${GM_getValue("foo")}
          count = ${GM_getValue("count")}
          active = ${GM_getValue("active")}
          data.name =  ${GM_getValue("data").name}`;                   
alert(info);

function GM_listValues()

GM_setValue("foo", "bar");
GM_setValue("count", 100);
GM_setValue("active", true);
GM_setValue("data", {
name: 'Andy',
age: 18
});
alert(GM_listValues());

function GM_deleteValue(name)

GM_deleteValue("foo");

let keys =  GM_listValues();
for (let key of keys) {
  GM_deleteValue(key);
}

function GM_addValueChangeListener(name,callback);

   listener_id = GM_addValueChangeListener("foo",function(name,old_value,new_value,remote) {
        alert("Value Changed:" + name + ":" + old_value + "=>" + new_value);
    });

function GM_removeValueChangeListener(listener_id);

 GM_removeValueChangeListener(listener_id);

function GM_notification(details)

function GM_notification(text, title, image, onclick )

GM_notification("Hello!");

GM.notification({
  text: 'This is a message with callback',
  onclick: function() {
    alert("you click message ok button");
  },
  ondone: function() {
    alert("message bar closed");
  }
});

GM_notification("Hello","","",function() {
  alert("you click message ok button");
})

GM_setClipboard('this is test data');

	function GM_registerMenuCommand(title,callback) 

GM_registerMenuCommand("click me",function() {
	alert("You click menu item");
});

function GM_unregisterMenuCommand(commandId) 

GM_unregisterMenuCommand(commandId);

function GM_openInTab(url,background) 

GM_openInTab("https://www.example.com");
GM_openInTab("https://www.example.com",true);

function GM_download(url,name) 

function GM_download(detail) 

GM_download("https://www.xbext.com/download/xbrowser-release.apk") 

//指定下载保存文件名称
GM_download("https://www.xbext.com/download/xbrowser-release.apk,"xbrowser.apk");

//批量下载，保存在默认下载目录，名字为tag的子目录
let urls = ["https://www.dundeecity.gov.uk/sites/default/files/publications/civic_renewal_forms.zip",
            "https://www.dundeecity.gov.uk/sites/default/files/publications/civic_renewal_forms.zip",
            "https://www.dundeecity.gov.uk/sites/default/files/publications/civic_renewal_forms.zip",
           ];
var i =0;
for(let url of urls ) {
  GM_download({
    url: `${url}`,
    name: `test-file${++i}.zip`,
    confirm: false,
    tag: "test-file"
  });
}

function GM_getResourceText(name)

// @resource     main-content https://www.example.com/res/main-content.txt
var text = GM_getResourceText("main-content");

function GM_getResourceURL(name)

 var img = document.querySelector("#avatar")
 //@resource     avatar01 https://api.multiavatar.com/avatar01.svg
 img.src = GM_getResourceURL("avatar01");

function GM_xmlhttpRequest(details)

//发起一个get请求
GM_xmlhttpRequest({
  method: "GET",
  url: "http://www.example.com/",
  onload: function(response) {
    alert(response.responseText);
  }
});

//发起一个post请求
GM.xmlHttpRequest({
  method: "POST",
  url: "https://www.example.net/login",
  data: "username=johndoe&password=xyz123",
  headers: {
    "Content-Type": "application/x-www-form-urlencoded"
  },
  onload: function(response) {
    if (response.responseText.indexOf("Logged in as") > -1) {
      location.href = "http://www.example.net/dashboard";
    }
  }
});

var info = "Script Name: "  + GM_info.script.name + 
    "\nVersion: " + GM_info.script.version + 
    "\nVersion: " + GM_info.script.version + 
    "\nScriptHandler: " + GM_info.scriptHandler + 
    "\nScript Handler Version : " + GM_info.version ;

alert(info);