/*
    * Copyright (C) 2007-2012 Argeo GmbH
    *
    * Licensed 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.argeo.connect.ui.parts;
  
  import org.argeo.eclipse.ui.EclipseUiUtils;
  import org.eclipse.jface.dialogs.MessageDialog;
  import org.eclipse.jface.dialogs.TrayDialog;
  import org.eclipse.swt.SWT;
  import org.eclipse.swt.events.ModifyEvent;
  import org.eclipse.swt.events.ModifyListener;
  import org.eclipse.swt.graphics.Point;
  import org.eclipse.swt.layout.GridData;
  import org.eclipse.swt.layout.GridLayout;
  import org.eclipse.swt.widgets.Composite;
  import org.eclipse.swt.widgets.Control;
  import org.eclipse.swt.widgets.Label;
  import org.eclipse.swt.widgets.Shell;
  import org.eclipse.swt.widgets.Text;
  
  /**
   * Generic dialog with 2 texts fields to ask the end user for a title and a
   * description
   */
  public class AskTitleDescriptionDialog extends TrayDialog {
  	private static final long serialVersionUID = -1965274702044063832L;
  	// The various field
  	private Text titleTxt;
  	private Text descTxt;
  
  	private String title;
  	private String desc;
  
  	private final String windowTitle;
  
  	/**
  	 * @param parentShell
  	 * @param windowTitle
  	 */
  	public AskTitleDescriptionDialog(Shell parentShell, String windowTitle) {
  		super(parentShell);
  		this.windowTitle = windowTitle;
  	}
  
  	public AskTitleDescriptionDialog(Shell parentShell, String windowTitle, String defaultTitle, String defaultDesc) {
  		super(parentShell);
  		this.windowTitle = windowTitle;
  		title = defaultTitle;
  		desc = defaultDesc;
  	}
  
  	protected Control createDialogArea(Composite parent) {
  		// MAIN LAYOUT
  		Composite dialogarea = (Composite) super.createDialogArea(parent);
  		dialogarea.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  		dialogarea.setLayout(new GridLayout(2, false));
  
  		// Title
  		titleTxt = createLT(dialogarea, "Title");
  		if (EclipseUiUtils.notEmpty(title))
  			titleTxt.setText(title);
  		titleTxt.setMessage("Please provide a title");
  		titleTxt.addModifyListener(new ModifyListener() {
  			private static final long serialVersionUID = 1L;
  
  			@Override
  			public void modifyText(ModifyEvent event) {
  				title = titleTxt.getText();
  			}
  		});
  
  		// Description
  		Label lbl = new Label(dialogarea, SWT.RIGHT);
  		lbl.setText("Description");
  		lbl.setFont(EclipseUiUtils.getBoldFont(dialogarea));
  		lbl.setLayoutData(new GridData(SWT.RIGHT, SWT.TOP, false, false));
  		descTxt = new Text(dialogarea, SWT.MULTI | SWT.WRAP | SWT.BORDER);
  		descTxt.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  		if (EclipseUiUtils.notEmpty(desc))
  			descTxt.setText(desc);
  		descTxt.setMessage("... and optionally a description");
  		descTxt.addModifyListener(new ModifyListener() {
  			private static final long serialVersionUID = 1L;
  
  			@Override
  			public void modifyText(ModifyEvent event) {
  				desc = descTxt.getText();
 			}
 		});
 		parent.pack();
 		return dialogarea;
 	}
 
 	public String getTitle() {
 		return title;
 	}
 
 	public String getDescription() {
 		return desc;
 	}
 
 	/**
 	 * Override this to perform the real addition
 	 * 
 	 * @return
 	 */
 	protected boolean performFinish() {
 		// Sanity check
 		String msg = null;
 
 		if (EclipseUiUtils.isEmpty(title) || title.length() < 2)
 			msg = "Please enter a title that is at list two (2) valid charaters long.";
 		if (msg != null) {
 			MessageDialog.openError(getShell(), "Non valid information", msg);
 			return false;
 		}
 
 		return true;
 	}
 
 	// This dialog life cycle
 	@Override
 	protected void okPressed() {
 		if (performFinish())
 			super.okPressed();
 	}
 
 	protected Point getInitialSize() {
 		return new Point(400, 250);
 	}
 
 	protected void configureShell(Shell shell) {
 		super.configureShell(shell);
 		shell.setText(windowTitle);
 	}
 
 	// Specific widgets management
 	/** Creates label and text. */
 	protected Text createLT(Composite parent, String label) {
 		Label lbl = new Label(parent, SWT.RIGHT);
 		lbl.setText(label);
 		lbl.setFont(EclipseUiUtils.getBoldFont(parent));
 		lbl.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false));
 		Text text = new Text(parent, SWT.SINGLE | SWT.BORDER);
 		text.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
 		return text;
 	}
 }