de.thischwa.pmcms.gui.dialog.pojo.DialogFieldsLevelComp.java Source code

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Here is the source code for de.thischwa.pmcms.gui.dialog.pojo.DialogFieldsLevelComp.java

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/*******************************************************************************
 * Poor Man's CMS (pmcms) - A very basic CMS generating static html pages.
 * http://poormans.sourceforge.net
 * Copyright (C) 2004-2013 by Thilo Schwarz
 * 
 * == BEGIN LICENSE ==
 * 
 * Licensed under the terms of any of the following licenses at your
 * choice:
 * 
 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 *    http://www.gnu.org/licenses/lgpl.html
 * 
 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 *    http://www.mozilla.org/MPL/MPL-1.1.html
 * 
 * == END LICENSE ==
 ******************************************************************************/
package de.thischwa.pmcms.gui.dialog.pojo;

import java.util.ArrayList;
import java.util.Collection;

import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.lang.StringUtils;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;

import de.thischwa.pmcms.conf.resource.LabelHolder;
import de.thischwa.pmcms.model.domain.pojo.APoormansObject;
import de.thischwa.pmcms.model.domain.pojo.Level;
import de.thischwa.pmcms.tool.swt.FileNameVerifier;

/**
 * Composite is part of {@link DialogCreator} and contains input fields and their validation method for {@link Level}.
 * 
 * @author Thilo Schwarz
 */
public class DialogFieldsLevelComp extends Composite implements IDialogFieldsValidator {
    private Text textName = null;
    private Text textTitle = null;
    private Level level = null;
    private DialogCreator dialogCreator = null;

    public DialogFieldsLevelComp(final Composite parent, int style, Level level) {
        super(parent, style);
        dialogCreator = (DialogCreator) parent;
        this.level = level;
        initialize();
    }

    private void initialize() {
        String filename = StringUtils.defaultString(level.getName());
        GridData gridDataLabel = new GridData();
        gridDataLabel.widthHint = 100;
        gridDataLabel.verticalAlignment = GridData.CENTER;
        gridDataLabel.horizontalAlignment = GridData.END;
        GridData gridDataText = new GridData();
        gridDataText.heightHint = -1;
        gridDataText.widthHint = 150;
        GridLayout gridLayoutMy = new GridLayout();
        gridLayoutMy.numColumns = 2;
        gridLayoutMy.marginWidth = 25;
        gridLayoutMy.verticalSpacing = 5;
        gridLayoutMy.horizontalSpacing = 20;
        gridLayoutMy.marginHeight = 25;
        gridLayoutMy.makeColumnsEqualWidth = false;
        GridData gridDataMy = new GridData();
        gridDataMy.grabExcessHorizontalSpace = true;
        gridDataMy.verticalAlignment = GridData.CENTER;
        gridDataMy.horizontalSpan = 1;
        gridDataMy.horizontalAlignment = GridData.FILL;
        this.setLayoutData(gridDataMy);
        this.setLayout(gridLayoutMy);
        Label labelTitle = new Label(this, SWT.RIGHT);
        labelTitle.setText("*   ".concat(LabelHolder.get("dialog.pojo.level.fields.title"))); //$NON-NLS-1$
        labelTitle.setLayoutData(gridDataLabel);
        textTitle = new Text(this, SWT.BORDER);
        textTitle.setTextLimit(256);
        textTitle.setLayoutData(gridDataText);
        textTitle.setText(StringUtils.defaultString(level.getTitle()));
        Label labelName = new Label(this, SWT.RIGHT);
        labelName.setText("*   ".concat(LabelHolder.get("dialog.pojo.level.fields.name"))); //$NON-NLS-1$
        labelName.setLayoutData(gridDataLabel);
        textName = new Text(this, SWT.BORDER);
        textName.setTextLimit(256);
        textName.setLayoutData(gridDataText);
        textName.setText(filename);
        textName.addVerifyListener(new FileNameVerifier());
        textName.addModifyListener(new ModifyListenerClearErrorMessages(dialogCreator));

        Collection<String> forbiddenNames = new ArrayList<String>();
        Collection<Level> sisters = level.getParent().getSublevels();
        if (CollectionUtils.isNotEmpty(sisters))
            for (Level otherLevel : sisters)
                forbiddenNames.add(otherLevel.getName());
        if (StringUtils.isNotBlank(filename))
            forbiddenNames.remove(filename);
        if (level.getId() == APoormansObject.UNSET_VALUE) // suggestion of the file name should work just with new  objects
            textTitle.addModifyListener(new FilenameSuggestorListener(dialogCreator, textName, forbiddenNames));
    }

    /*
     * (non-Javadoc)
     * @see de.thischwa.pmcms.gui.workspace.dialog.IValidator#isValid()
     */
    @Override
    public boolean isValid() {
        if (StringUtils.isBlank(textName.getText())) {
            dialogCreator.setErrorMessage(LabelHolder.get("dialog.pojo.level.error.name.notvalid")); //$NON-NLS-1$
            return false;
        } else if (existsName()) {
            dialogCreator.setErrorMessage(LabelHolder.get("dialog.pojo.level.error.name.exists")); //$NON-NLS-1$
            return false;
        }
        if (StringUtils.isBlank(textTitle.getText())) {
            dialogCreator.setErrorMessage(LabelHolder.get("dialog.pojo.level.error.title")); //$NON-NLS-1$
            return false;
        }
        level.setName(textName.getText());
        level.setTitle(textTitle.getText());
        return true;
    }

    private boolean existsName() {
        Collection<Level> sisters = level.getParent().getSublevels();
        if (CollectionUtils.isEmpty(sisters))
            return false;
        for (Level otherLevel : sisters) {
            if (otherLevel.getName().equals(textName.getText()) && !(otherLevel.getId() == level.getId()))
                return true;
        }
        return false;
    }
}