com.worldline.awltech.i18ntools.editor.ui.EditorLocalizedMessageEditingSupport.java Source code

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Here is the source code for com.worldline.awltech.i18ntools.editor.ui.EditorLocalizedMessageEditingSupport.java

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/**
 * I18N Tools
 *
 * Copyright (C) 2014 Worldline or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.
 *
 * 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.
 *
 * 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.
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
package com.worldline.awltech.i18ntools.editor.ui;

import java.util.Locale;

import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.EditingSupport;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TextCellEditor;
import org.eclipse.jface.viewers.ViewerCell;

import com.worldline.awltech.i18ntools.editor.data.model.I18NEntry;
import com.worldline.awltech.i18ntools.editor.data.model.I18NMessage;

/**
 * Editing support for localized messages column cells
 * 
 * @author mvanbesien
 * 
 */
public class EditorLocalizedMessageEditingSupport extends EditingSupport {

    private final TableViewer viewer;

    private final CellEditor cellEditor;

    private Locale locale;

    public EditorLocalizedMessageEditingSupport(TableViewer viewer) {
        super(viewer);
        this.viewer = viewer;
        this.cellEditor = new TextCellEditor(viewer.getTable());
    }

    public void setLocale(Locale locale) {
        this.locale = locale;
    }

    @Override
    protected CellEditor getCellEditor(Object element) {
        return this.cellEditor;
    }

    @Override
    protected boolean canEdit(Object element) {
        return true;
    }

    @Override
    protected Object getValue(Object element) {
        if (element instanceof I18NEntry && this.locale != null) {
            I18NMessage i18nMessage = ((I18NEntry) element).getLocalizedMessages().get(this.locale);
            return i18nMessage != null ? i18nMessage.getValue() : null;
        }

        return null;
    }

    @Override
    protected void setValue(Object element, Object value) {
        if (element instanceof I18NEntry && this.locale != null) {
            I18NEntry i18nMessage = (I18NEntry) element;
            i18nMessage.updateLocalizedMessage(this.locale, String.valueOf(value));
            this.viewer.update(element, null);
        }
    }

    @Override
    protected void initializeCellEditorValue(CellEditor cellEditor, ViewerCell cell) {
        Object value = getValue(cell.getElement());
        cellEditor.setValue(value != null ? value : "");
    }

}