/*Initialization Code*/

// Proxy, от 25.02.2016.


// Настройка функций кликов мыши для кнопки ...................
this.onmousedown =e=> {
   
   this.onmouseup =e=>{                  // левый клик
        if ( e.button ) return;
        clearTimeout(self.timer);           

        switch( cbu.getPrefs("network.proxy.type") ) {
           case 0:  var data = 1; break;            
           case 1:  var data = 2; break; 
           case 2:  var data = 0; break;
           default: var data = 0; 
        }
        cbu.setPrefs("network.proxy.type", data);  
   }

   if ( e.button == 0 )                  // длинный левый клик
        self.timer = setTimeout(()=>{     
           self.onmouseup = '';
           cbu.getPrefs("CB.Proxy.connectionsInTab") ? openConnectionsInTab() : openConnections();
        }, 500);
   
   if ( e.button == 2 )                  // правый клик
        menuPopup.showPopup(self, -1, -1, "popup", "bottomleft", "topleft");
};
self.onclick =e=> e.preventDefault();



// Подсказка для кнопки ...................
this.onmouseover =()=> {
   this.tooltipText = "Proxy \nЛ: Переключить прокси \nДЛ: Открыть настройки прокси"
                    + "\nП: Mеню кнопки \n\nТекущие настройки прокси: " 
                    + "\nIP: " + Services.prefs.getComplexValue("network.proxy.http", Ci.nsISupportsString).data
                    + "\nПорт: "+ cbu.getPrefs("network.proxy.http_port");                                                    
};



// Создать меню для кнопки ...................
var array = [
   { label: "Добавление прокси в контекстом меню", value: 'CB.Proxy.inContextMenu' },
   { label: "Открывать настройки прокси как вкладку", value: 'CB.Proxy.connectionsInTab' },
   { label: "Переключать на режим 'Без прокси' при закрытии браузера ", value: 'CB.Proxy.reset' }    
];

var menuPopup = document.getElementById('mainPopupSet').appendChild(document.createElement("menupopup"));
array.forEach((m)=> {
   var mItem = document.createElement("menuitem");
   mItem.setAttribute("label", m.label);
   mItem.setAttribute('type', 'checkbox');
   mItem.setAttribute('checked', cbu.getPrefs(m.value) );
   mItem.onclick =()=> cbu.setPrefs(m.value, !cbu.getPrefs(m.value));  
   menuPopup.appendChild(mItem);
});
addDestructor(()=> menuPopup.remove() );

// добавить стандартное контекстное меню 
menuPopup.appendChild(document.createElement("menuseparator"));
menuPopup.appendChild(document.createElement("menu")).setAttribute("label", "Меню кнопки");
var clone = menuPopup.lastChild.appendChild(document.getElementById("custombuttons-contextpopup").cloneNode(true));
clone.setAttribute("onpopupshowing", "document.popupNode = document.getElementById('" + _id + "')");



// Функция открывает настройки прокси в окне ...................
function openConnections() {
   for ( var win, nm = Services.wm.getEnumerator(null); win = nm.getNext(); ) 
         if ( win.name == 'Proxy') {
              win.focus();  
              break;
              }
   var win = openDialog("chrome://browser/content/preferences/connection.xul", "Proxy", "centerscreen");

   // добавить атрибут "prefwindow"
   win.addEventListener("load", function f(e) {
       this.removeEventListener("load", f, true); 
       e.target.documentElement.setAttribute("type", "prefwindow");
   }, true );
   
   // закрыть настройки прокси по клику на странице 
   gBrowser.addEventListener("click", function c() {
      this.removeEventListener("click", c );
      try { win.close() } catch(e) {}; 
   }, true );
};



// Функция открывает настройки прокси в вкладке ...................
function openConnectionsInTab() { 
   var connections = gBrowser.getBrowserForTab( gBrowser.selectedTab = gBrowser.addTab("chrome://browser/content/preferences/connection.xul") ); 
          
   // oбработчик ждет пока откроется прокси, удаляет себя и добавляет атрибут
   connections.addEventListener("pageshow", function c(e) {         
      this.removeEventListener(e.type, c);         
      e.originalTarget.documentElement.setAttribute("type", "prefwindow");
   })   
};



// Установливать нужную иконку кнопки при старте баузера или при изменениях в 'about:config' ...................
var s = "network.proxy.type";
function toggleImage() {
   var icon = self.ownerDocument.getAnonymousElementByAttribute(self, "class", "toolbarbutton-icon");
   switch( cbu.getPrefs(s) ) {
      case 0: icon.src = self.image; break;          
      case 1: icon.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAATCAYAAACQjC21AAAACXBIWXMAAAsSAAALEgHS3X78AAAGDklEQVQ4EQEDBvz5AQEBAQAAAAAAZcWvAAT+/gCLNMwADKKFEEgp1kJUJ95M/QkJL+4BESa56CAF0OYS3xIIAM8mBO6+LQXTt43VKOXSQaYAAQAFABsPFQAQCVkAAQEBAQASq+kAFwjzAIwETwEwOlRA5QQjcwkJBT7RAB4NHQACAAcAAgCV9zUAwOYAAO71AAAA7QD4Ngjn1FQUx5dGDuenDvzf9wb97gDd9DoAAwWg/wAAAwQA5uYVBQEiLWfruKOS+NnKMj4xDwcWABoAJwDqANi+sQAe8KkAEePcAA4QKADoAwoE3QQNGuv1E0c5C88YKAjdxufuD/f28foAAv/y/gD+VgcAABoAXRYOBohUSeAYEBXGAI2VwQAGANcA/gAJAOoWXwDiy/UAUA+EAIISUQAww34A/uHpAMfoDQjM6g1n5e8GiubvJwv9/v0AAwFkgQD7zwAxNRv9k5QmqhgXCMkA7vTvAN3Y/AAUICIAyQ9eABAWHwAkIDUAGg69ACgbyQAeAM4A6bW5APW7sADmABsANxbrLP7u3+UQ/r7NAwA9eQUEJwR6eBvDR0EUygC1r/UAztP7ACAe7gC+1wsA1wxTAAQUBgDxBREAt7TkABAAzgA5MvQAMR7nAALy6ACz9VgAFBkTAxTryhvm7hq4Ay2CgyoEFgB+UQjMESsF2QAIJzQAsftEAMaz0wAsFNIA5+DkANIJRQDWCQUA0vYuANmxuQAwHuYAAgMAAB8gAwDD0xwAyPVAAAPn4RPg4gjgBA0KADf4BwAZweUQAFH1/gCq/y0AtgAvAPgY+gAK9LwAOxWtAMC89wDB60MA+errAPHT7QCnCwcASkn9ADcz+QCR+pwAcpfoAKDdLQYVAP48A/xXgFnx+gA/4OEOAB322QAE9+kAOAjdAN4eVQDGBlEA+OLhAEq4rQBTrrsANdDAAM4AEQCzDnsAydUbACoU2ABAOPUAKhrnALS9JgDn7wjuBOnf9Q0ACggA8uoNAG/iXQAWA+gAJAnlADAQyADr/zkA/eMBABfJ/gBUAwEA+gYFAOgc/gDgRiYAyfBEAH2q9ABv7bYA4OEFAPf7AwASEw4dBP/o9/MBDQEAAO32AOnrBADp+BgA0wEZABUT7wAG6J0A58G3AOr9AAD1/fwACwoIAH/k8QAMyY0A7mtDAN37IwCIkjIAvskSAPECEgAEAf3kBAPx+tn+9gL4APL1CAHv8QAA9fcAAP35AOvUxQAA2KIAAvDvAI4EAgDWHAgAh/j+AA3y+wAAsNMAEgX4ABJhNgDgBVIA8QL2AAIAAQAOCgjmBAT39Mn6+P3nAO3zIQDt7AAA9fEA/+zEAADhqAAA9+cABwgDABgpEABFWy0ADd/1AACs3AAA8/gAAKnYAPvj/gAI9BkAAAEEAAIA/vsHBQbIAwAgOO//3OkkAOThNQDl3wD/6cwAAOatAAH65wABAwgABRs3AEdCLQA3KQIABSMNAA39/AAA3/AAAPT7AAPh7gAX8/QAzAETAO8ME9YMHBqBAwD0Mf4A6uTnAOzrRADv6RIA88IAAf7gAAAABAAACCsA+w5GANj2MgDS7RAACwLbAO8i7QAM+PwAC+b9AAD7/QAm/PIAzxAk+tIhNobyqYa6AwUELAD96vnoAQD59AAA/UIA/uoHAP7xAAACHQAAAzUAAf0OAPr0+QDl8w4ACvnbAPwH2ADUDwIA9u4kACL2/QD3CxAA4RknqrlDaoUPLTv6AwURQAD+BAAA/wsH1AEJB+8BBRUzAQQiDAEEIQAB/gkAAPr5AAH6+QD//PsA+Pn8AAft0wDB/zkAoxFrALEmSPjIITagUPnfe+3r8OzR+xkAAQEBAQAAEnEAAgYEAAscFgH05OxAAAEAcwAA/j4A9PcNAPj5AAAGBwAAEREAAyYiAB4CyAD1IzD56TJe1AAABJUAGAWpl5Z19hvi4ADdj5AAAQEBAQAAAAAAByJ8AP3+/gD9+PoAAxAMEAD8/0L+8PlM/wUILwATFCYAJCEFACwr4AglENMJ9tm99ig1tPjA6uQME/0A9O/2AHhKIwCINQIAcMlIWpaBw60AAAAASUVORK5CYII='; break;
      case 2: icon.src = 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break;
      default:icon.src = self.image; 
   }
};  
toggleImage();
gPrefService.addObserver(s, toggleImage, false);
addDestructor(()=> gPrefService.removeObserver(s, toggleImage) );



// Переключать на режим 'Без прокси' при закрытии браузера если это разрешено в 'about:config' ...................
var switchOffProxy = {
    observe: function(subject, topic, data) {
       if ( data == "shutdown" && cbu.getPrefs("CB.Proxy.reset") ) cbu.setPrefs("network.proxy.type", 0);  
    }
};
Services.obs.addObserver(switchOffProxy, "quit-application", false);



// Создаем меню для добавление прокси в контекстном меню выделенного текста на странице ...................
((contextMenu)=> {

  // создать новый пункт меню
  var menuitem = contextMenu.appendChild( document.createElement("menuitem") );      
  menuitem.setAttribute("label", "Добавить прокси"); 
  menuitem.setAttribute("class", "menuitem-iconic");
  menuitem.setAttribute("image", self.image);
  menuitem.onclick =()=> addNewProxy();
  addDestructor(()=> menuitem.remove() );
  
  // устанавливаем где показывать пункт меню 
  addEventListener("popupshowing", ()=>{
     menuitem.hidden = !cbu.getPrefs("CB.Proxy.inContextMenu") || !gContextMenu.isContentSelected; // !gContextMenu.isTextSelected;
  }, false, contextMenu);
  
  
  // добавление прокси
  function addNewProxy(sel) {  
     var selection = document.commandDispatcher.focusedWindow.getSelection().toString();
     var sel = ( sel == undefined ) ? selection : sel.toString();
     sel = sel.replace(/^\s+|\s+$/g, ""); // удалить пробелы, слева и справа от строки
     sel = sel.replace(/\s+/g,":"); // заменить пробелы внутри строки

     // если только порт ...
     if ( sel.length < 6 && isFinite(sel) ) { 
          sel = sel.replace(/:/g, "");
          var lab = 'порт';
          cbu.setPrefs("network.proxy.http_port", +sel);                    
          }
     
     // если только адрес ...
     if ( sel.length > 5 && !/:/.test(sel) && sel.split(".").length == 4 ) {   
          var lab = 'адрес';
          cbu.setPrefs("network.proxy.http", convertFromUnicode("UTF-8", sel));  
          }   
     
     // если адрес и порт ...    
     if ( sel.length > 5 && /:/.test(sel) && sel.split(":").length == 2 && sel.split(".").length == 4 ) {
          var lab = 'адрес и порт';
          var array = sel.split(":");  
          array.forEach((str)=> addNewProxy(str) );          
          }     

     if ( lab == undefined ) return;

     // всплывающая подсказка рядом с выделенным текстом ...     
     function showTooltip() {
        var tooltip = gBrowser.appendChild( document.createElement("tooltip") );
        tooltip.style.cssText = "color: red !important; font-weight: bold !important; font-size: 14px !important; -moz-box-orient: horizontal; text-align: center;";
   
        var image = tooltip.appendChild( document.createElement("image") );
        image.setAttribute("src", self.image);
   
        var label = tooltip.appendChild( document.createElement("label"));
        label.setAttribute("value", "Установлен " + lab + " прокси: " + sel);
    
        var focused = document.commandDispatcher.focusedWindow;
        var selection = focused.getSelection().getRangeAt(0).getBoundingClientRect();
        var posX = focused.mozInnerScreenX + selection.left;
        var posY = focused.mozInnerScreenY + selection.bottom - 5;   

        tooltip.showPopup(gBrowser, posX, posY);
        setTimeout(()=> gBrowser.removeChild(tooltip), 3000);
     };
     showTooltip();    
  };
   
})(document.getElementById("contentAreaContextMenu"));

...
                    //+ "\nIP: " + Services.prefs.getComplexValue("network.proxy.http", Ci.nsISupportsString).data
                    + `\nIP: ${Services.prefs.getStringPref("network.proxy.http") || "< empty string >"}`
...

//gPrefService.addObserver(s, toggleImage, false);
//addDestructor(()=> gPrefService.removeObserver(s, toggleImage) );
Services.prefs.addObserver(s, toggleImage);
addDestructor(() => Services.prefs.removeObserver(s, toggleImage));

//var url = `chrome://browser/content/preferences/connection.x${version >= 72 ? "htm" : "u"}l`;
var url = `chrome://browser/content/preferences/${version >= 77 ? "dialogs/" : ""}connection.x${version >= 72 ? "htm" : "u"}l`;