/* ************************************************************************

   qooxdoo - the new era of web development

   http://qooxdoo.org

   Copyright:
     2004-2006 by 1&1 Internet AG, Germany, http://www.1and1.org

   License:
     LGPL 2.1: http://www.gnu.org/licenses/lgpl.html

   Authors:
     * Sebastian Werner (wpbasti)
     * Andreas Ecker (ecker)

************************************************************************ */

/* ************************************************************************

#module(ui_popup)

************************************************************************ */

/*!
  This manages ToolTip instances
*/
qx.OO.defineClass("qx.manager.object.ToolTipManager", qx.manager.object.ObjectManager,
function() {
  qx.manager.object.ObjectManager.call(this);
});

qx.OO.addProperty({ name : "currentToolTip", type : "object", instance : "qx.ui.popup.ToolTip" });






/*
---------------------------------------------------------------------------
  MODIFIER
---------------------------------------------------------------------------
*/

qx.Proto._modifyCurrentToolTip = function(propValue, propOldValue, propData)
{
  // Return if the new tooltip is a child of the old one
  if(propOldValue && propOldValue.contains(propValue)) {
    return;
  }

  // If old tooltip existing, hide it and clear widget binding
  if(propOldValue)
  {
    propOldValue.hide();

    propOldValue._stopShowTimer();
    propOldValue._stopHideTimer();
  }

  // If new tooltip is not null, set it up and start the timer
  if(propValue) {
    propValue._startShowTimer();
  }

  return true;
}





/*
---------------------------------------------------------------------------
  EVENT INTERFACE: MOUSE
---------------------------------------------------------------------------
*/

qx.Proto.handleMouseOver = function(e)
{
  var vTarget = e.getTarget();
  var vToolTip;

  // Allows us to use DOM Nodes as tooltip target :)
  if (!(vTarget instanceof qx.ui.core.Widget) && vTarget.nodeType == 1) {
    vTarget = qx.event.handler.EventHandler.getTargetObject(vTarget);
  }

  //Search first parent which has a tooltip
  while(vTarget != null && !(vToolTip = vTarget.getToolTip())) {
    vTarget = vTarget.getParent();
  }

  // Bind tooltip to widget
  if (vToolTip != null) {
    vToolTip.setBoundToWidget(vTarget);
  }

  // Set Property
  this.setCurrentToolTip(vToolTip);
}

qx.Proto.handleMouseOut = function(e)
{
  var vTarget = e.getTarget();
  var vRelatedTarget = e.getRelatedTarget();

  var vToolTip = this.getCurrentToolTip();

  // If there was a tooltip and
  // - the destination target is the current tooltip
  //   or
  // - the current tooltip contains the destination target
  if(vToolTip && (vRelatedTarget == vToolTip || vToolTip.contains(vRelatedTarget))) {
    return;
  }

  // If the destination target exists and the target contains it
  if(vRelatedTarget && vTarget && vTarget.contains(vRelatedTarget)) {
    return;
  }

  // If there was a tooltip and there is no new one
  if(vToolTip && !vRelatedTarget) {
    this.setCurrentToolTip(null);
  }
}







/*
---------------------------------------------------------------------------
  EVENT INTERFACE: FOCUS
---------------------------------------------------------------------------
*/

qx.Proto.handleFocus = function(e)
{
  var vTarget = e.getTarget();
  var vToolTip = vTarget.getToolTip();

  // Only set new tooltip if focus widget
  // has one
  if(vToolTip != null)
  {
    // Bind tooltip to widget
    vToolTip.setBoundToWidget(vTarget);

    // Set Property
    this.setCurrentToolTip(vToolTip);
  }
}

qx.Proto.handleBlur = function(e)
{
  var vTarget = e.getTarget();

  if(!vTarget) {
    return;
  }

  var vToolTip = this.getCurrentToolTip();

  // Only set to null if blured widget is the
  // one which has created the current tooltip
  if(vToolTip && vToolTip == vTarget.getToolTip()) {
    this.setCurrentToolTip(null);
  }
}







/*
---------------------------------------------------------------------------
  DEFER SINGLETON INSTANCE
---------------------------------------------------------------------------
*/

/**
 * Singleton Instance Getter
 */
qx.Class.getInstance = qx.util.Return.returnInstance;