/*
* Copyright 2011 Google Inc.
*
* 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 com.google.gwt.user.cellview.client;
import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.TableCellElement;
import com.google.gwt.dom.client.TableElement;
import com.google.gwt.dom.client.TableRowElement;
import com.google.gwt.dom.client.TableSectionElement;
import com.google.gwt.user.cellview.client.DataGrid.Resources;
import com.google.gwt.user.client.ui.RootPanel;
/**
* Tests for {@link DataGrid}.
*/
public class DataGridTest extends AbstractCellTableTestBase<DataGrid<String>> {
/**
* Test if the dataGridWidget style is applied.
*/
public void testDataGridWidgetStyle() {
Resources res = GWT.create(Resources.class);
DataGrid<String> dataGrid = new DataGrid<String>(20, res);
String dataGridWidgetStyle = res.dataGridStyle().dataGridWidget();
TableElement tableElem = dataGrid.getElement().cast();
assertTrue(tableElem.getClassName().contains(dataGridWidgetStyle));
}
/**
* Test that if a header builder does not add any rows, the header is hidden.
*/
public void testHeaderBuilderEmpty() {
DataGrid<String> table = createAbstractHasData();
RootPanel.get().add(table);
HeaderBuilder<String> emptyHeader = new AbstractHeaderOrFooterBuilder<String>(table, false) {
@Override
protected boolean buildHeaderOrFooterImpl() {
return false;
}
};
HeaderBuilder<String> notEmptyHeader = new AbstractHeaderOrFooterBuilder<String>(table, false) {
@Override
protected boolean buildHeaderOrFooterImpl() {
return true;
}
};
FooterBuilder<String> emptyFooter = new AbstractHeaderOrFooterBuilder<String>(table, true) {
@Override
protected boolean buildHeaderOrFooterImpl() {
return false;
}
};
FooterBuilder<String> notEmptyFooter = new AbstractHeaderOrFooterBuilder<String>(table, true) {
@Override
protected boolean buildHeaderOrFooterImpl() {
return true;
}
};
// Header is empty, footer is not.
table.setHeaderBuilder(emptyHeader);
table.setFooterBuilder(notEmptyFooter);
table.getPresenter().flush();
assertFalse(table.tableHeader.isAttached());
assertTrue(table.tableFooter.isAttached());
// Footer is empty, header is not.
table.setHeaderBuilder(notEmptyHeader);
table.setFooterBuilder(emptyFooter);
table.getPresenter().flush();
assertTrue(table.tableHeader.isAttached());
assertFalse(table.tableFooter.isAttached());
RootPanel.get().remove(table);
}
@Override
protected DataGrid<String> createAbstractHasData() {
return new DataGrid<String>();
}
@Override
protected TableCellElement getBodyElement(DataGrid<String> table, int row, int column) {
TableElement tableElem = table.tableData.getElement().cast();
TableSectionElement tbody = tableElem.getTBodies().getItem(0);
TableRowElement tr = tbody.getRows().getItem(row);
return tr.getCells().getItem(column);
}
@Override
protected int getHeaderCount(DataGrid<String> table) {
TableElement tableElem = table.tableHeader.getElement().cast();
TableSectionElement thead = tableElem.getTHead();
if (thead.getRows().getLength() == 0) {
return 0;
}
TableRowElement tr = thead.getRows().getItem(0);
return tr.getCells().getLength();
}
@Override
protected TableCellElement getHeaderElement(DataGrid<String> table, int column) {
TableElement tableElem = table.tableHeader.getElement().cast();
TableSectionElement thead = tableElem.getTHead();
TableRowElement tr = thead.getRows().getItem(0);
return tr.getCells().getItem(column);
}
}