// Объявляем переменные для этой вкладки ................................
var _this = this;
var alertsService = Components.classes["@mozilla.org/alerts-service;1"].getService(Components.interfaces.nsIAlertsService);
var bmsvc = Components.classes["@mozilla.org/browser/nav-bookmarks-service;1"].getService(Components.interfaces.nsINavBookmarksService);


var ucjsMouseGestures = {

   // настройки ....
   enableWheelGestures: true,
   enableRockerGestures: true,
   enablePopupGestures: true,

   _lastX: 0,
   _lastY: 0,
   _directionChain: '',
   _isMouseDownL: false,
   _isMouseDownR: false,
   _hideFireContext: false,    //for windows
   _shouldFireContext: false, //for linux
   POPUP_ID: 'GesturePopup',
   
   // Жесты ....
   GESTURES: {
           
// Управление страницей ................................
  'W-':{name:'Увеличить масштаб',cmd:function(){ FullZoom.enlarge() }},
  'W+':{name:'Уменьшить масштаб',cmd:function(){ FullZoom.reduce() }},
  'UDU':{name:'Сбросить масштаб',cmd:function(){ FullZoom.reset() }},
  'L<R':{name:'Сбросить масштаб',cmd:function(){ FullZoom.reset() }},
},

init:function() {
    var self = this;
    var events = ["mousedown", "mousemove", "mouseup", "contextmenu"];
    if ( this.enableRockerGestures ) events.push("draggesture");
    if ( this.enableWheelGestures ) events.push("DOMMouseScroll");
    function registerEvents( aAction, eventArray ) {
       eventArray.forEach(function(aType) { gBrowser.mPanelContainer[aAction + "EventListener"]( aType, self, true ) });
    };
    registerEvents("add", events);

    window.addEventListener("unload", function() { 
           registerEvents("remove",events);
    }, false );
    addDestructor(function() { registerEvents("remove", events) }); 
},

handleEvent:function( event ) {
    switch( event.type ) {
        case"mousedown":
            if ( event.button ==2 ) {
                 this._isMouseDownR = true;
                 this._hideFireContext = false;
                 this._startGesture( event );
                 }
            if ( this.enableRockerGestures ) {
                 if ( event.button == 2 && this._isMouseDownL ) {
                      this._isMouseDownL = false;
                      this._isMouseDownR = false;
                      this._shouldFireContext = false;
                      this._hideFireContext = true;
                      this._directionChain = "L>R";
                      this._stopGesture(event);
                      }
                 else if ( event.button == 0 ) {
                           this._isMouseDownL = true;
                           if ( this._isMouseDownR ) {
                                this._isMouseDownL = false;
                                this._shouldFireContext = false;
                                this._hideFireContext = true;
                                this._directionChain = "L<R";
                                this._stopGesture( event );
                                }
                           }
                 }
                break;

        case"mousemove":
            if ( this._isMouseDownR ) {
                 this._hideFireContext = true;
                 this._progressGesture( event );
                 }
            break;

        case"mouseup":
            if ( content.xdTrailArea ) {
                 content.xdTrailArea.parentNode.removeChild( content.xdTrailArea );
                 content.xdTrailArea = content.document.documentElement.appendChild(document.createElementNS("http://www.w3.org/1999/xhtml", "xdTrailArea"));
                 }
            if ( event.ctrlKey && event.button == 2 ) {
                 this._isMouseDownL = false;
                 this._isMouseDownR = false;
                 this._shouldFireContext = false;
                 this._hideFireContext = false;
                 this._directionChain = '';
                 event.preventDefault();
                 XULBrowserWindow.statusTextField.label = "Reset Gesture";
                 break;
                 }
            if ( this._isMouseDownR && event.button == 2 ) {
                 if ( this._directionChain ) this._shouldFireContext = false;
                      this._isMouseDownR = false;
                      this._stopGesture( event );
                 if ( this._shouldFireContext && !this._hideFireContext ) {
                      this._shouldFireContext = false;
                      this._displayContextMenu( event );
                      }
                 }
            else if ( this.enableRockerGestures && event.button == 0 && this._isMouseDownL ) { 
                      this._isMouseDownL = false;
                      this._shouldFireContext = false;
                      }
            else if ( this.enablePopupGestures && ( event.button == 0 || event.button == 1 ) && event.target.localName =='menuitem' ) {
                      this._isMouseDownL = false;
                      this._shouldFireContext = false;
                      var popup = document.getElementById( this.POPUP_ID );
                      var activeItem = event.target;
                  
                      switch( popup.getAttribute("gesturecommand") ) {
                          case"WebSearchPopup":
                              var selText = popup.getAttribute("selectedtext");
                              var engine = activeItem.engine;
                              if ( !engine ) break;
                              var submission = engine.getSubmission( selText, null );
                              if ( !submission ) break;
                              document.getElementById('searchbar').textbox.value = selText;
                              gBrowser.loadOneTab( submission.uri.spec,null,null,submission.postData,null,false );
                              break;
                          case"ClosedTabsPopup":
                              undoCloseTab( activeItem.index );
                              break;
                          case"HistoryPopup":
                              gBrowser.webNavigation.gotoIndex( activeItem.index );
                              break;
                          case"AllTabsPopup":
                              gBrowser.selectedTab = gBrowser.mTabs[activeItem.index];
                              break;
                          }
                      popup.hidePopup();
                      }
            try { document.getElementById("statusbar-display").label = "" } catch(e) {};
            break;
        
        case"popuphiding":
            var popup = document.getElementById( this.POPUP_ID );
            popup.removeEventListener("popuphiding",this,true);
            document.documentElement.removeEventListener("mouseup",this,true);
            while( popup.hasChildNodes() ) popup.removeChild( popup.lastChild );
            break;

        case"contextmenu":
            if ( this._isMouseDownL || this._isMouseDownR || this._hideFireContext ) {
                 event.preventDefault();
                 event.stopPropagation();
                 this._shouldFireContext = true;
                 this._hideFireContext = false;
                 }
            break;

        case"DOMMouseScroll":
            if ( this.enableWheelGestures&&this._isMouseDownR ) {
                 event.preventDefault();
                 event.stopPropagation();
                 this._shouldFireContext = false;
                 this._hideFireContext = true;
                 this._directionChain = "W" + ( event.detail > 0 ? "+" : "-" );
                 this._stopGesture(event);
                 }
             break;

        case"draggesture":
            this._isMouseDownL = false;
            break;
        }
},

_displayContextMenu:function( event ) {
    var evt = event.originalTarget.ownerDocument.createEvent("MouseEvents");
    evt.initMouseEvent("contextmenu",true,true,event.originalTarget.defaultView,0,event.screenX,event.screenY,event.clientX,event.clientY,false,false,false,false,2,null);
    event.originalTarget.dispatchEvent(evt);
},

_startGesture:function( event ) {
    this._lastX = event.screenX;
    this._lastY = event.screenY;
    this._directionChain = "";
},

_progressGesture:function( event ) {
    var x = event.screenX, y = event.screenY;
    var lastX = this._lastX, lastY = this._lastY;
    var subX = x-lastX, subY=y-lastY;
    var distX = ( subX > 0 ? subX : (-subX) ), distY = ( subY > 0 ? subY : ( -subY ) );
    var direction;
    if ( distX < 10 && distY < 10 ) return;
        
        if ( distX > distY ) direction = subX < 0 ? "L" : "R";
    else direction = subY < 0 ? "U" : "D";

    var dChain = this._directionChain;
    if ( direction !== dChain.charAt( dChain.length-1 ) ) {
         dChain += direction;
         this._directionChain += direction;
         var gesture = this.GESTURES[dChain];
         XULBrowserWindow.statusTextField.label = "Жест мыши: "+ dChain + ( gesture ? ' ('+ gesture.name +')' : '' );
         }
    this._lastX = x;
    this._lastY = y;
},

_stopGesture:function(event){
    try {
        if ( dChain = this._directionChain ) this.GESTURES[dChain].cmd( this, event );
        XULBrowserWindow.statusTextField.label = "";
    }
    catch(e) {
             setTimeout(function() { XULBrowserWindow.statusTextField.label = "Неизвестный жест мыши: " + dChain }, 0);
             setTimeout(function() { XULBrowserWindow.statusTextField.label = "" }, 600);
    }
    this._directionChain = "";
},

_buildPopup:function( event,gestureCmd ) {
    if ( !this.enablePopupGestures ) return;
    var popup = document.getElementById( this.POPUP_ID );
    if ( !popup ) {
         popup = document.createElement("popup");
         popup.id = this.POPUP_ID;
         }
    document.getElementById("mainPopupSet").appendChild( popup );
    popup.setAttribute("gesturecommand", gestureCmd );
    
    switch( gestureCmd ) {
        case"WebSearchPopup":
            var searchSvc = Cc["@mozilla.org/browser/search-service;1"].getService(Ci.nsIBrowserSearchService);
            var engines = searchSvc.getVisibleEngines({});
            if ( engines.length < 1 ) throw"Поисковые системы не установлены.";
            for ( var i = engines.length - 1; i >= 0;--i ) {
                  var engine = engines[i];
                  var menuitem = document.createElement("menuitem");
                  menuitem.setAttribute("label", engine.name );
                  menuitem.setAttribute("class", "menuitem-iconic");
                  if ( engine.iconURI ) menuitem.setAttribute("src", engine.iconURI.spec );
                  popup.insertBefore( menuitem, popup.firstChild );
                  menuitem.engine = engine;
                  }
            popup.setAttribute("selectedtext", getBrowserSelection().toString() );
            break;
        
        case"ClosedTabsPopup":
            try {
                if ( !gPrefService.getBoolPref("browser.sessionstore.enabled") ) throw"Функция восстановления сессий отключена.";
                }
            catch(e){}
            var ss = Cc["@mozilla.org/browser/sessionstore;1"].getService(Ci.nsISessionStore);
            if ( ss.getClosedTabCount(window) ==0 ) throw"Нет восстанавливаемых вкладок в этом окне.";
            var undoItems = eval("("+ss.getClosedTabData(window)+")");
            for ( var i=0, LEN = undoItems.length; i<LEN; i++ ) {
                  var menuitem=popup.appendChild(document.createElement("menuitem"));
                  menuitem.setAttribute("label",undoItems[i].title);
                  menuitem.setAttribute("class","menuitem-iconic bookmark-item");
                  menuitem.index = i;
                  var iconURL = undoItems[i].image;
                  if ( iconURL ) menuitem.setAttribute("image", iconURL );
                  }
            break;
        
        case"HistoryPopup":
            var sessionHistory = gBrowser.webNavigation.sessionHistory;
            if ( sessionHistory.count<1 ) throw"Нет истории в этой вкладке.";
            var curIdx = sessionHistory.index;
            for ( var i = 0, shc = sessionHistory.count; i < shc; i++ ) {
                  var entry = sessionHistory.getEntryAtIndex(i,false);
                  if ( !entry ) continue;
                  var menuitem = document.createElement("menuitem");
                  popup.insertBefore(menuitem,popup.firstChild);
                  menuitem.setAttribute("label",entry.title);
                  try {
                      var iconURL = Cc["@mozilla.org/browser/favicon-service;1"].getService(Ci.nsIFaviconService).getFaviconForPage( entry.URI ).spec;
                      menuitem.style.listStyleImage = "url("+iconURL+")";
                      }
                  catch(e){}
                  menuitem.index = i;
                  if ( i==curIdx ) {
                       menuitem.style.listStyleImage = "";
                       menuitem.setAttribute("type","radio");
                       menuitem.setAttribute("checked","true");
                       menuitem.className = "unified-nav-current";
                       activeItem = menuitem;
                       }
                  else 
                       {
                       menuitem.className = i< curIdx ? "unified-nav-back menuitem-iconic" : "unified-nav-forward menuitem-iconic";
                       }
            }
            break;
        
        case"AllTabsPopup":
            var tabs = gBrowser.mTabs;
            if ( tabs.length < 1 ) return;
            for ( var i=0, LEN = tabs.length; i < LEN; i++ ) {
                  var menuitem = popup.appendChild(document.createElement("menuitem"));
                  var tab = tabs[i];
                  menuitem.setAttribute("class", "menuitem-iconic bookmark-item");
                  menuitem.setAttribute("label", tab.label);
                  menuitem.setAttribute("crop", tab.getAttribute("crop") );
                  menuitem.setAttribute("image", tab.getAttribute("image"));
                  menuitem.index = i;
                  if ( tab.selected ) menuitem.setAttribute("style", "color: red; font-weight: bold;");
                  if ( tab.hasAttribute('unread') ) menuitem.setAttribute("style", "color: blue;"); 
                  }
            break;
        }
        
    document.popupNode = null;
    document.tooltipNode = null;
    popup.addEventListener("popuphiding", this, true);
    popup.openPopup( null, "", event.clientX, event.clientY, false, false );
    document.documentElement.addEventListener("mouseup", this, true);
},
  };
ucjsMouseGestures.init();