PropertyModifier.java

// ============================================================================
//
// Copyright (C) 2006-2016 Talend Inc. - www.talend.com
//
// This source code is available under agreement available at
// %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt
//
// You should have received a copy of the agreement
// along with this program; if not, write to Talend SA
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package com.amalto.workbench.widgets.composites.property;

import org.eclipse.jface.viewers.ColumnViewer;
import org.eclipse.jface.viewers.Viewer;

import com.amalto.workbench.providers.CommonTableCellModifier;

public class PropertyModifier extends CommonTableCellModifier<IPropertySource<?>> {

    public static final String COL_PROP_NAME = "name";//$NON-NLS-1$

    public static final String COL_PROP_VALUE = "value";//$NON-NLS-1$

    public static final String[] COLPROPS = new String[] { COL_PROP_NAME, COL_PROP_VALUE };

    private ColumnViewer viewer;

    public PropertyModifier(ColumnViewer viewer) {
        this.viewer = viewer;
    }

    @SuppressWarnings({ "unchecked", "rawtypes" })
    @Override
    public boolean canModify(Object element, String property) {

        if (!COL_PROP_VALUE.equals(property))
            return false;

        if (viewer.getCellEditors().length < 2)
            return false;

        if (!viewer.getControl().isEnabled())
            return false;

        boolean canModify = (element instanceof IPropertySource) && (((IPropertySource<?>) element).getCellEditor() != null);

        if (canModify) {
            viewer.getCellEditors()[1] = ((IPropertySource) element).getCellEditor();
            prop2ValueIndexExtractor.put(COL_PROP_VALUE, ((IPropertySource) element).getCellEditorValueExtractor());
            prop2ValueModifier.put(COL_PROP_VALUE, ((IPropertySource) element).getCellEditorValueModifier());
        }

        return canModify;
    }

    @Override
    protected Viewer getViewer() {
        return viewer;
    }

}