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/*******************************************************************************
* Copyright (c) 2009, 2021 Mountainminds GmbH & Co. KG and Contributors
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.report.internal.html.table;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import org.jacoco.core.analysis.ICoverageNode;
import org.jacoco.report.internal.ReportOutputFolder;
import org.jacoco.report.internal.html.HTMLElement;
import org.jacoco.report.internal.html.resources.Resources;
import org.jacoco.report.internal.html.resources.Styles;
/**
* Renderer for a table of {@link ITableItem}s.
*/
public class Table {
private final List<Column> columns;
private Comparator<ITableItem> defaultComparator;
/**
* Create a new table without any columns yet.
*/
public Table() {
this.columns = new ArrayList<Table.Column>();
}
/**
* Adds a new column with the given properties to the table.
*
* @param header
* column header caption
* @param style
* optional CSS style class name for the td-Elements of this
* column
* @param renderer
* callback for column rendering
* @param defaultSorting
* If <code>true</code>, this column is the default sorting
* column. Only one column can be selected for default sorting.
*
*/
public void add(final String header, final String style,
final IColumnRenderer renderer, final boolean defaultSorting) {
columns.add(new Column(columns.size(), header, style, renderer,
defaultSorting));
if (defaultSorting) {
if (defaultComparator != null) {
throw new IllegalStateException(
"Default sorting only allowed for one column.");
}
this.defaultComparator = renderer.getComparator();
}
}
/**
* Renders a table for the given icon
*
* @param parent
* parent element in which the table is created
* @param items
* items that will make the table rows
* @param total
* the summary of all coverage data items in the table static
* resources that might be referenced
* @param resources
* static resources that might be referenced
* @param base
* base folder of the table
* @throws IOException
* in case of IO problems with the element output
*/
public void render(final HTMLElement parent,
final List<? extends ITableItem> items, final ICoverageNode total,
final Resources resources, final ReportOutputFolder base)
throws IOException {
final List<? extends ITableItem> sortedItems = sort(items);
final HTMLElement table = parent.table(Styles.COVERAGETABLE);
table.attr("id", "coveragetable");
header(table, sortedItems, total);
footer(table, total, resources, base);
body(table, sortedItems, resources, base);
}
private void header(final HTMLElement table,
final List<? extends ITableItem> items, final ICoverageNode total)
throws IOException {
final HTMLElement tr = table.thead().tr();
for (final Column c : columns) {
c.init(tr, items, total);
}
}
private void footer(final HTMLElement table, final ICoverageNode total,
final Resources resources, final ReportOutputFolder base)
throws IOException {
final HTMLElement tr = table.tfoot().tr();
for (final Column c : columns) {
c.footer(tr, total, resources, base);
}
}
private void body(final HTMLElement table,
final List<? extends ITableItem> items, final Resources resources,
final ReportOutputFolder base) throws IOException {
final HTMLElement tbody = table.tbody();
int idx = 0;
for (final ITableItem item : items) {
final HTMLElement tr = tbody.tr();
for (final Column c : columns) {
c.body(tr, idx, item, resources, base);
}
idx++;
}
}
private List<? extends ITableItem> sort(
final List<? extends ITableItem> items) {
if (defaultComparator != null) {
final List<ITableItem> result = new ArrayList<ITableItem>(items);
Collections.sort(result, defaultComparator);
return result;
}
return items;
}
private static class Column {
private final char idprefix;
private final String header;
private final IColumnRenderer renderer;
private final SortIndex<ITableItem> index;
private final String style, headerStyle;
private boolean visible;
Column(final int idx, final String header, final String style,
final IColumnRenderer renderer, final boolean defaultSorting) {
this.idprefix = (char) ('a' + idx);
this.header = header;
this.renderer = renderer;
index = new SortIndex<ITableItem>(renderer.getComparator());
this.style = style;
this.headerStyle = Styles.combine(
defaultSorting ? Styles.DOWN : null, Styles.SORTABLE,
style);
}
void init(final HTMLElement tr, final List<? extends ITableItem> items,
final ICoverageNode total) throws IOException {
visible = renderer.init(items, total);
if (visible) {
index.init(items);
final HTMLElement td = tr.td(headerStyle);
td.attr("id", String.valueOf(idprefix));
td.attr("onclick", "toggleSort(this)");
td.text(header);
}
}
void footer(final HTMLElement tr, final ICoverageNode total,
final Resources resources, final ReportOutputFolder base)
throws IOException {
if (visible) {
renderer.footer(tr.td(style), total, resources, base);
}
}
void body(final HTMLElement tr, final int idx, final ITableItem item,
final Resources resources, final ReportOutputFolder base)
throws IOException {
if (visible) {
final HTMLElement td = tr.td(style);
td.attr("id",
idprefix + String.valueOf(index.getPosition(idx)));
renderer.item(td, item, resources, base);
}
}
}
}
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