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/*******************************************************************************
* Copyright (c) 2015 Tasktop Technologies and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Tasktop Technologies - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.tasks.ui.editors;
import java.util.Arrays;
import java.util.List;
import org.eclipse.mylyn.tasks.core.data.TaskAttribute;
import org.eclipse.mylyn.tasks.core.data.TaskDataModel;
import org.eclipse.mylyn.tasks.ui.editors.LayoutHint;
import org.eclipse.mylyn.tasks.ui.editors.LayoutHint.ColumnSpan;
import org.eclipse.mylyn.tasks.ui.editors.LayoutHint.RowSpan;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.forms.widgets.FormToolkit;
import com.google.common.base.Function;
import com.google.common.base.Joiner;
import com.google.common.base.Predicate;
import com.google.common.base.Strings;
import com.google.common.collect.FluentIterable;
public class LabelsAttributeEditor extends TextAttributeEditor {
private static final String VALUE_SEPARATOR = ","; //$NON-NLS-1$
private final boolean isMultiSelect;
public LabelsAttributeEditor(TaskDataModel manager, TaskAttribute taskAttribute) {
super(manager, taskAttribute);
this.isMultiSelect = TaskAttribute.TYPE_MULTI_SELECT.equals(taskAttribute.getMetaData().getType());
if (!isReadOnly() && isMultiSelect) {
setLayoutHint(new LayoutHint(RowSpan.MULTIPLE, ColumnSpan.SINGLE));
}
}
@Override
public void createControl(Composite parent, FormToolkit toolkit) {
super.createControl(parent, toolkit, (isMultiSelect ? SWT.WRAP : SWT.NONE));
if (!isReadOnly() && isMultiSelect) {
getText().setToolTipText("Separate multiple values with a comma"); //$NON-NLS-1$
}
}
@Override
public String getValue() {
if (isMultiSelect) {
List<String> values = getAttributeMapper().getValues(getTaskAttribute());
return Joiner.on(VALUE_SEPARATOR + " ").skipNulls().join(values); //$NON-NLS-1$
} else {
return getAttributeMapper().getValue(getTaskAttribute());
}
}
@Override
public void setValue(String text) {
if (isMultiSelect) {
String[] values = text.split(VALUE_SEPARATOR);
getAttributeMapper().setValues(getTaskAttribute(), getTrimmedValues(values));
} else {
getAttributeMapper().setValue(getTaskAttribute(), text);
}
attributeChanged();
}
public static List<String> getTrimmedValues(String[] values) {
return FluentIterable.from(Arrays.asList(values)).transform(new Function<String, String>() {
@Override
public String apply(String input) {
return Strings.nullToEmpty(input).trim();
}
}).filter(new Predicate<String>() {
@Override
public boolean apply(String input) {
return !Strings.isNullOrEmpty(input);
}
}).toList();
}
}
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