Package org.olat.core.gui.control.generic.closablewrapper

Source Code of org.olat.core.gui.control.generic.closablewrapper.CloseableModalWindowController

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) frentix GmbH<br>
* http://www.frentix.com<br>
* <p>
*/
package org.olat.core.gui.control.generic.closablewrapper;

import java.util.ArrayList;
import java.util.List;

import org.olat.core.gui.UserRequest;
import org.olat.core.gui.components.Component;
import org.olat.core.gui.components.link.Link;
import org.olat.core.gui.components.panel.Panel;
import org.olat.core.gui.components.velocity.VelocityContainer;
import org.olat.core.gui.control.Event;
import org.olat.core.gui.control.WindowBackOffice;
import org.olat.core.gui.control.WindowControl;
import org.olat.core.gui.control.controller.BasicController;
import org.olat.core.gui.control.util.ZIndexWrapper;
import org.olat.core.gui.control.winmgr.JSCommand;
import org.olat.core.gui.render.ValidationResult;
import org.olat.core.util.Util;

/**
* <h3>Description:</h3> Modal dialog based on Ext.Window <h3>Events thrown by
* this controller:</h3>
* <ul>
* <li>CLOSE_WINDOW_EVENT</li>
* </ul>
* <p>
* Initial Date: 31.10.2007 <br>
*
* @author Florian Gnaegi, frentix GmbH, http://www.frentix.com
*
*/
public class CloseableModalWindowController extends BasicController {
  /**
   * Comment for <code>CLOSE_WINDOW_EVENT</code>
   */
  public static final Event CLOSE_WINDOW_EVENT = new Event("CLOSE_WINDOW_EVENT");
 
  private final String modalId;

  private Link backIcon;
  private VelocityContainer mainVC;

  public CloseableModalWindowController(UserRequest ureq, WindowControl wControl, String title, Component modalContent, String id) {
    super(ureq, wControl);
    modalId = id;

    final Panel guiMsgPlace = new Panel("guimessage_place");
    mainVC = new VelocityContainer("closeablewrapper", Util.getPackageVelocityRoot(this.getClass()) + "/modalwindow.html", null, this) {
      public void validate(UserRequest ureq, ValidationResult vr) {
        super.validate(ureq, vr);
        // just before rendering, we need to tell the windowbackoffice
        // that we are a favorite for accepting gui-messages.
        // the windowbackoffice doesn't know about guimessages, it is
        // only a container that keeps them for one render cycle
        WindowBackOffice wbo = getWindowControl().getWindowBackOffice();
        List<ZIndexWrapper> zindexed = (List<ZIndexWrapper>) wbo.getData("guimessage");
        if (zindexed == null) {
          zindexed = new ArrayList<ZIndexWrapper>(3);
          wbo.putData("guimessage", zindexed);
        }
        zindexed.add(new ZIndexWrapper(guiMsgPlace, 20));
      }
    };
    mainVC.put("guimessage", guiMsgPlace);

    if (title != null)
      mainVC.contextPut("title", title);
    mainVC.contextPut("panelName", modalId);
    mainVC.put("content", modalContent);
    putInitialPanel(mainVC);
  }

  /**
   * @see org.olat.core.gui.control.DefaultController#event(org.olat.core.gui.UserRequest,
   *      org.olat.core.gui.components.Component,
   *      org.olat.core.gui.control.Event)
   */
  public void event(UserRequest ureq, Component source, Event event) {
    if (source == backIcon) {
      fireEvent(ureq, CLOSE_WINDOW_EVENT);
      deactivate();
    } else if ("close".equals(event.getCommand())) {
      fireEvent(ureq, CLOSE_WINDOW_EVENT);
      deactivate();
    }
  }

  /**
   * @see org.olat.core.gui.control.DefaultController#getInitialComponent()
   */
  public Component getInitialComponent() {
    throw new RuntimeException("please use activate() instead");
  }

  /**
   *
   */
  public void activate() {
    getWindowControl().pushAsModalDialog(super.getInitialComponent());
  }

  /**
   * deactivates the modal controller. please do use this method here instead
   * of getWindowControl().pop() !
   *
   */
  public void deactivate() {
    getWindowControl().pop();

    StringBuilder sb = new StringBuilder();
    sb.append("if( Ext.getCmp('").append(modalId).append("') != null ) {")
      .append("  Ext.getCmp('").append(modalId).append("').close();")
      .append("};");
   
    getWindowControl().getWindowBackOffice().sendCommandTo(
        new JSCommand(sb.toString()));
  }

  /**
   * @see org.olat.core.gui.control.DefaultController#doDispose(boolean)
   */
  protected void doDispose() {
    //
  }
}
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