text: /*
   * This source file is part of libRocket, the HTML/CSS Interface Middleware
   *
   * For the latest information, see http://www.librocket.com
   *
   * Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   *
   */
  
  #include <Rocket/Controls/ElementDataGridExpandButton.h>
  #include <Rocket/Controls/ElementDataGridRow.h>
  
  namespace Rocket {
  namespace Controls {
  
  ElementDataGridExpandButton::ElementDataGridExpandButton(const Rocket::Core::String& tag) : Core::Element(tag)
  {
  	SetClass("collapsed", true);
  }
  
  ElementDataGridExpandButton::~ElementDataGridExpandButton()
  {
  }
  
  void ElementDataGridExpandButton::ProcessEvent(Core::Event& event)
  {
  	Core::Element::ProcessEvent(event);
  
  	if (event == "click" && event.GetCurrentElement() == this)
  	{
  		// Look for the first data grid row above us, and toggle their on/off
  		// state.
  		Core::Element* parent = GetParentNode();
  		ElementDataGridRow* parent_row;
  		do
  		{
  			parent_row = dynamic_cast< ElementDataGridRow* >(parent);
  			parent = parent->GetParentNode();
  		}
  		while (parent && !parent_row);
  
  		if (parent_row)
  		{
  			parent_row->ToggleRow();
  
  			if (parent_row->IsRowExpanded())
  			{
  				SetClass("collapsed", false);
  				SetClass("expanded", true);
  			}
  			else
  			{
  				SetClass("collapsed", true);
  				SetClass("expanded", false);
  			}
  		}
  	}
  }
  
  }
  }
  