//
// dhtmlXContextMenuObject
//

/**
 * @param string
 * @param string
 * @param string
 * @param string
 * @return dhtmlXContextMenuObject
 */
function dhtmlXContextMenuObject(width, height, name, gfxpath) {
  this.menu = new dhtmlXMenuBarObject(document.body, width, height, name, 1,
    gfxpath);
  this.menu.setMenuMode('popup');
  this.menu.hideBar();
  this.menu.contextMenu = this;
  this.menu.enableWindowOpenMode(false);
  this.menu.setOnClickHandler(this._innerOnClick);
  this.aframes = new Array();
  this.registerFrame(window);
  
  return this;
} // end func dhtmlXContextMenuObject

/**
 * @param object
 * @return void
 */
dhtmlXContextMenuObject.prototype.registerFrame = function(awin) {
  this.aframes[this.aframes.length] = awin;
} // end func registerFrame

/**
 * @param function
 * @return void
 */
dhtmlXContextMenuObject.prototype.setContextMenuHandler = function(func) {
  if ('function' == typeof func) {
    this.onClickHandler = func;
  } else {
    this.onClickHandler = eval(func);
  }
} // end func setContextMenuHandler

/**
 * @param number
 * @param number
 * @param string
 * @param string
 * @return void
 */
dhtmlXContextMenuObject.prototype.openAt = function(x, y, id, smartPosition) {
  this.espc = convertStringToBoolean(smartPosition);
  var f = new Object();
  f.button = 2;
  f.clientX = x;
  f.clientY = y;
  var start = new Object();
  start.contextMenuId = id;
  start.contextMenu = this;
  start.a = this._contextStart;
  start.a(document.body, f);
  this.espc = null;
} // end func openAt

/**
 * @param function
 * @return void
 */
dhtmlXContextMenuObject.prototype.setOnShowMenuHandler = function(func) {
  if('function' == typeof func) {
    this.onShowHandler = func;
  } else {
    this.onShowHandler = eval(func);
  }
} // end func setOnShowMenuHandler

/**
 * @param string
 * @return boolean
 */
dhtmlXContextMenuObject.prototype._innerOnClick = function(id) {
  var that = document.body.contextMenu;
  if (that.contextZone.ownerDocument.body.onclick) {
    that.contextZone.ownerDocument.body.onclick();
  }
  if (that.onClickHandler) {
    return that.onClickHandler(id, that.zoneId, that.contextZone);
  }
  return true;
} // end func _innerOnClick

/**
 * @param object
 * @param string
 * @return void
 */
dhtmlXContextMenuObject.prototype.setContextZone = function(htmlObject, zoneId) {
  if('object' != typeof htmlObject) {
    htmlObject = document.getElementById(htmlObject);
  }
  
  htmlObject.contextOnclick = htmlObject.onmousedown;
  htmlObject.selfobj = this;
  htmlObject.onmousedown = function(e) {
    this.selfobj._contextStart(this, e);
  };
  htmlObject.contextMenu = this;
  htmlObject.contextMenuId = zoneId;
} // end func setContextZone

/**
 *
 */
dhtmlXContextMenuObject.prototype._contextStart = function(obj, e) {
  if (!this.contextMenu) {
    this.contextMenu = this;
  }
  var win = obj.ownerDocument.parentWindow;
  if (!win) {
    win = obj.ownerDocument.defaultView;
  }
  
  if (!e) {
    e = win.event;
  }
  
  if (document.body.onclick) {
    document.body.onclick();
  }
  
  if ((!e) || (e.button != 2)) {
    if (obj.contextOnclick) {
      obj.contextOnclick();
    }
    return true;
  } else {
    if(this.contextMenu.onShowHandler) {
      this.contextMenu.onShowHandler(obj.contextMenuId);
    }
    this.contextMenu.menu.showBar();
  }
  
  var a = this.contextMenu.menu.topNod;
  var winScreenTop = window.screenTop;
  
  if ((!winScreenTop) && (winScreenTop != 0)) {
    winScreenTop = window.screenY+window.outerHeight - window.innerHeight;
  }
  
  var winScreenLeft = window.screenLeft;
  if ((!winScreenLeft) && (winScreenLeft != 0)) {
    winScreenLeft = window.screenX + window.outerWidth - window.innerWidth - 4;
  }
  
  if (e.screenY - winScreenTop + a.offsetHeight - window.document.body.scrollTop > window.document.body.clientHeight) {
    var verCor = a.offsetHeight;
  } else {
    var verCor = -14;
  }
  
  var corrector = new Array(window.document.body.scrollLeft + 5, verCor - window.document.body.scrollTop);
  a.style.position = 'absolute';
  
  if ((!e.screenY) && (e.clientX)) {
    a.style.top = e.clientY + 'px';
    a.style.left = e.clientX + 'px';
  } else {
    a.style.top = (e.screenY-winScreenTop-corrector[1]) + 'px';
    a.style.left = (e.screenX-winScreenLeft+corrector[0]) + 'px';
  }
  
  this.contextMenu._fixMenuPosition(a);
  
  a.ieFix.style.top  = a.style.top;
  a.ieFix.style.left = a.style.left;
  
  win.document.body.oncontextmenu=new Function("document.body.oncontextmenu=new Function('if(document.body.onclick)document.body.onclick();return false;');return false;");

  for (var i = 0; i < this.contextMenu.aframes.length; i++) {
    if (this.contextMenu.aframes[i].document) {
      this.contextMenu.aframes[i].document.body.selfobj = this;
    }
    this.contextMenu.aframes[i].document.body.onclick = function(e) {
      this.selfobj.contextMenu._contextEnd(e)
    };
  }
  
  document.body.contextMenu = this.contextMenu;
  this.contextMenu.contextZone = obj;
  this.contextMenu.zoneId = obj.contextMenuId;
  return false;
} // end func _contextStart

/**
 *
 */
dhtmlXContextMenuObject.prototype._fixMenuPosition = function(panel, mode) {
  var xs = document.body.offsetWidth + document.body.scrollLeft;
  var ys = document.body.offsetHeight - 15 + document.body.scrollTop;
  
  if ((panel.offsetWidth + parseInt(panel.style.left)) > xs) {
    var z = parseInt(panel.style.left) - panel.offsetWidth;
    
    if ((z < 0) || (this.espc)) {
      z = xs-panel.offsetWidth;
    }
    if (z < 0) {
      z = 0;
    }
    panel.style.left = z + 'px';
    
    if (panel.ieFix) {
      panel.ieFix.style.left = z + 'px';
    }
  }
  
  if ((panel.offsetHeight + parseInt(panel.style.top)) > ys) {
    var z = parseInt(panel.style.top) - panel.offsetHeight;
    
    if ((z < 0) || (this.espc)) {
      z = ys-panel.offsetHeight;
    }
    
    if (z < 0) {
      z = 0;
    }
    panel.style.top = z + 'px';
    
    if (panel.ieFix) {
      panel.ieFix.style.top = z + 'px';
    }
  }
  if(!mode)this._fixMenuPosition(panel,1);
} // end func _fixMenuPosition
 
/**
 * @param object
 * @return boolean
 */
dhtmlXContextMenuObject.prototype._contextEnd = function(e){
  var menu = this.menu;
  menu._closePanel(menu);
  menu.lastOpenedPanel = '';
  menu.lastSelectedItem = 0;
  menu.hideBar();
  for (var i = 0; i < this.aframes.length; i++) {
    if (this.aframes[i].document) {
      this.aframes[i].document.body.onclick = null;
    }
  }
  return false;
} // end func _contextEnd