mxPanningHandler

Constructs an event handler that creates a mxPopupMenu and pans the graph.

mxPanningHandler.prototype.isPanningEnabled = function()

Returns panningEnabled.

mxPanningHandler.prototype.setPanningEnabled = function( value )

Sets panningEnabled.

mxPanningHandler.prototype.init = function()

Initializes the shapes required for this vertex handler.

mxPanningHandler.prototype.isPanningTrigger = function( me )

Returns true if the given event is a panning trigger for the optional given cell.  This returns true if control-shift is pressed or if usePopupTrigger is true and the event is a popup trigger.

mxPanningHandler.prototype.mouseDown = function( sender, me )

Handles the event by initiating the panning.  By consuming the event all subsequent events of the gesture are redirected to this handler.

mxPanningHandler.prototype.consumePanningTrigger = function( me )

Consumes the given mxMouseEvent if it was a panning trigger in mouseDown.  The default is to invoke mxMouseEvent.consume.  Note that this will block any further event processing.  If you haven’t disabled built-in context menus and require immediate selection of the cell on mouseDown in Safari and/or on the Mac, then use the following code:

mxPanningHandler.prototype.consumePanningTrigger = function(me)
{
  if (me.evt.preventDefault)
  {
    me.evt.preventDefault();
  }

  // Stops event processing in IE
  me.evt.returnValue = false;

  // Sets local consumed state
  if (!mxClient.IS_SF && !mxClient.IS_MAC)
  {
    me.consumed = true;
  }
};

mxPanningHandler.prototype.mouseMove = function( sender, me )

Handles the event by updating the panning on the graph.

mxPanningHandler.prototype.mouseUp = function( sender, me )

Handles the event by setting the translation on the view or showing the popupmenu.

mxPanningHandler.prototype.scaleGraph = function( scale, preview )

Handles pinch events on touch devices.

mxPanningHandler.prototype.getCellForPopupEvent = function( me )

Hook to return the cell for the mouse up popup trigger handling.

mxPanningHandler.prototype.panGraph = function( dx, dy )

Pans graph by the given amount.

mxPanningHandler.prototype.destroy = function()

Destroys the handler and all its resources and DOM nodes.