trinidad-example/trinidad-demo/src/main/java/org/apache/myfaces/trinidaddemo/PartialDemoUtilBean.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.myfaces.trinidaddemo;

import javax.faces.application.ViewHandler;
import javax.faces.component.UIComponent;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
import javax.faces.event.ActionEvent;
import javax.faces.event.ValueChangeEvent;

import org.apache.myfaces.trinidad.component.UIXOutput;
import org.apache.myfaces.trinidad.context.RequestContext;
import org.apache.myfaces.trinidad.model.UploadedFile;


public class PartialDemoUtilBean
{
  public void action(ActionEvent action)
  {
    // Just update the string which says when the last update was.
    _status.setLinkUpdate();
  }

  // This is called for the resetButton
  public void reset(ActionEvent action)
  {
    _status.reset();
    _resetList();
  }
  
  public void prevalidateField()
  {
    _status.incrementPrevalidateEventCount();
  }

  public void valueChanged(ValueChangeEvent vce)
  {
    Object newValue = vce.getNewValue();
    UIComponent component = vce.getComponent();

    String rendererType = component.getRendererType();

    // For these first components the listeners have registered themselves
    // by setting the partialTriggers attribute. So we just update the model.
    if (rendererType.equals("org.apache.myfaces.trinidad.Checkbox"))
    {
      _status.setChecked((Boolean) newValue);
      _status.incrementCheckBoxUpdateCount();
    }
    else if (rendererType.equals("org.apache.myfaces.trinidad.Radio"))
    {
      if (Boolean.TRUE.equals(newValue))
      {
        String text = (String) component.getAttributes().get("text");
        _status.setSelectBooleanState(text);
      }
      else if (newValue instanceof String)
        _status.setSelectOneState((String) newValue);
    }
    else if (rendererType.equals("org.apache.myfaces.trinidad.Text"))
    {
      if (newValue instanceof String)
        _status.setTextValue((String) newValue);
    }
    else if (rendererType.equals("org.apache.myfaces.trinidad.Choice"))
    {
      if (newValue instanceof String)
        _status.setChoiceInt((String) newValue);
    }

    // This component illustrates a method of dynamically adding a
    // partialTarget (i.e. without setting the partialTriggers attribute). It
    // updates a component binding and adds the updated component directly to
    // the list of partial targets.
    else if (rendererType.equals("org.apache.myfaces.trinidad.Listbox"))
    {
      _listUpdate.setValue(component.getAttributes().get("value"));
      _addTarget(_listUpdate);
    }
  }

  public UIXOutput getListUpdate()
  {
    return _listUpdate;
  }

  public void setListUpdate(UIXOutput listUpdate)
  {
    _listUpdate = listUpdate;
  }

  public PartialDemoStatusBean getStatus()
  {
    return _status;
  }

  public void setStatus(PartialDemoStatusBean status)
  {
    _status = status;
  }

  public void navigate(ValueChangeEvent vce)
  {
    Object newValue = vce.getNewValue();
    if ((newValue != null) && !"".equals(newValue))
    {
      FacesContext fContext = FacesContext.getCurrentInstance(); 
      ViewHandler vh = fContext.getApplication().getViewHandler(); 
      UIViewRoot root = vh.createView(fContext, newValue.toString()); 
      fContext.setViewRoot(root); 
    }
  }

  public void setRenderInputFile(boolean renderInputFile)
  {
    this._renderInputFileTemp = renderInputFile;
  }

  public boolean isRenderInputFile()
  {
    Boolean value = (Boolean)
      FacesContext.getCurrentInstance().getViewRoot().getViewMap().get(
        _RENDER_INPUT_FILE_KEY);
    return value != null && value;
  }

  public void fileUploaded(ValueChangeEvent event)
  {
    _status.setUploadFile((UploadedFile) event.getNewValue());
  }

  public void updateRenderInputFileState(ActionEvent event)
  {
    FacesContext.getCurrentInstance().getViewRoot().getViewMap().put(
      _RENDER_INPUT_FILE_KEY, _renderInputFileTemp);
    _renderInputFileTemp = null;
  }

  private void _resetList()
  {
    _listUpdate.setValue("nothing yet.");
    _addTarget(_listUpdate);
  }

  private void _addTarget(UIComponent target)
  {
    RequestContext adfContext = RequestContext.getCurrentInstance();
    adfContext.addPartialTarget(target);
  }

  private PartialDemoStatusBean _status;
  private UIXOutput _listUpdate;
  private Boolean _renderInputFileTemp;
  private final static String _RENDER_INPUT_FILE_KEY = PartialDemoUtilBean.class.getName() +
                                                       ".renderInputFile";
}