content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   * Lesser General Public License for more details.
   *
   * For further information about Alkacon Software, please see the
   * company website: https://www.alkacon.com
   *
   * For further information about OpenCms, please see the
   * project website: https://www.opencms.org
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  package org.opencms.gwt.client.ui.input;
  
  import org.opencms.gwt.client.ui.CmsPopup;
  
  import com.google.gwt.core.client.Scheduler;
  import com.google.gwt.core.client.Scheduler.ScheduledCommand;
  import com.google.gwt.user.client.ui.Frame;
  
  /**
   * This class represents a popup which displays an IFrame.<p>
   *
   * It also exports a Javascript function to close the popup when given the id of the popup.<p>
   *
   * @since 8.0.0
   */
  public class CmsFramePopup extends CmsPopup {
  
      /** The handler which is called when the popup closes itself. */
      protected Runnable m_closeHandler;
  
      /** The iframe for the popup content. */
      Frame m_frame;
  
      /** The id of this popup. */
      private String m_id;
  
      /**
       * Constructor.<p>
       *
       * @param title the title of the popup dialog
       * @param url the URL which should be opened in the popup
       */
  
      public CmsFramePopup(String title, String url) {
  
          super(title);
          m_frame = new Frame();
          add(m_frame);
          m_frame.setUrl(url);
      }
  
      /**
       * @see org.opencms.gwt.client.ui.CmsPopup#center()
       */
      @Override
      public void center() {
  
          exportCloseFunction();
          super.center();
      }
  
      /**
       * Returns the frame contained in this popup.<p>
       *
       * @return a frame
       */
      public Frame getFrame() {
  
          return m_frame;
      }
  
      /**
       * Hide the popup, but only after the current event has been processed.<p>
       */
      public void hideDelayed() {
  
          // The reason for using this function, instead of calling hide directly, is that
          // the latter leads to harmless but annoying Javascript errors when called from
          // Javascript inside the IFrame, since the IFrame is closed before the function returns.
          Scheduler.get().scheduleDeferred(new ScheduledCommand() {
  
              /**
               * @see com.google.gwt.core.client.Scheduler.ScheduledCommand#execute()
               */
              public void execute() {
  
                  if (m_closeHandler != null) {
                      m_closeHandler.run();
                  }
  
                  hide();
              }
          });
      }
  
      /**
       * Sets the handler which should be called when the popup closes itself.<p>
       *
       * @param closeHandler the "close" handler
       */
      public void setCloseHandler(Runnable closeHandler) {
  
          m_closeHandler = closeHandler;
      }
  
      /**
       * Sets the id of this IFrame popup.<p>
       *
       * The popup can be closed by calling the cmsCloseDialog Javascript function with the same id as a parameter.<p>
       *
       * @param id the new id
       */
      public void setId(String id) {
  
          m_id = id;
      }
  
      /**
       * @see org.opencms.gwt.client.ui.CmsPopup#show()
       */
      @Override
      public void show() {
  
          exportCloseFunction();
          super.show();
      }
  
      /**
       * Exports a Javascript function 'cmsCloseDialog', which, when passed the id of a CmsFramePopup as a parameter, will close that dialog.<p>
       */
      protected native void exportCloseFunction() /*-{
                                                  var w = $wnd;
                                                  w.CmsFramePopup_instances = w.CmsFramePopup_instances || {};
                                                  // register the current instance under its id
                                                  w.CmsFramePopup_instances[this.@org.opencms.gwt.client.ui.input.CmsFramePopup::m_id] = this;
                                                  if (!w.cmsCloseDialog) {
                                                  w.cmsCloseDialog = function(arg) {
                                                  var instance = w.CmsFramePopup_instances[arg];
                                                  instance.@org.opencms.gwt.client.ui.input.CmsFramePopup::hideDelayed()();
                                                  // remove current instance
                                                  delete w.CmsFramePopup_instances[this.@org.opencms.gwt.client.ui.input.CmsFramePopup::m_id];
                                                  } // cmsCloseDialog
                                                  } // if
                                                  }-*/;
  
      /**
       * test.<p>
       */
      protected native void setGroupFormValue() /*-{
                                                var w = $wnd;
                                                w.CmsFramePopup_instances = w.CmsFramePopup_instances || {};
                                                // register the current instance under its id
                                                w.CmsFramePopup_instances[this.@org.opencms.gwt.client.ui.input.CmsFramePopup::m_id] = this;
                                                if (!w.cmsCloseDialog) {
                                                w.cmsCloseDialog = function(arg) {
                                                var instance = w.CmsFramePopup_instances[arg];
                                                instance.@org.opencms.gwt.client.ui.input.CmsFramePopup::hideDelayed()();
                                                // remove current instance
                                                delete w.CmsFramePopup_instances[this.@org.opencms.gwt.client.ui.input.CmsFramePopup::m_id];
                                                } // cmsCloseDialog
                                                } // if
                                                }-*/;
  
  }
  