/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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.android.ahat;
import java.io.PrintStream;
import java.net.URI;
import java.util.List;
/**
* An Html implementation of Doc.
*/
public class HtmlDoc implements Doc {
private PrintStream ps;
private Column[] mCurrentTableColumns;
/**
* Create an HtmlDoc that writes to the given print stream.
* @param title - The main page title.
* @param style - A URI link to a stylesheet to link to.
*/
public HtmlDoc(PrintStream ps, DocString title, URI style) {
this.ps = ps;
ps.println("<!DOCTYPE html>");
ps.println("<html>");
ps.println("<head>");
ps.format("<title>%s</title>\n", title.html());
ps.format("<link rel=\"stylesheet\" type=\"text/css\" href=\"%s\">\n",
style.toASCIIString());
ps.println("</head>");
ps.println("<body>");
}
@Override
public void title(String format, Object... args) {
ps.print("<h1>");
ps.print(DocString.text(String.format(format, args)).html());
ps.println("</h1>");
}
@Override
public void menu(DocString string) {
ps.format("<div class=\"menu\">%s</div>", string.html());
}
@Override
public void section(String title) {
ps.print("<h2>");
ps.print(DocString.text(title).html());
ps.println(":</h2>");
}
@Override
public void println(DocString string) {
ps.print(string.html());
ps.println("<br />");
}
@Override
public void big(DocString str) {
ps.print("<h2>");
ps.print(str.html());
ps.println("</h2>");
}
@Override
public void table(Column... columns) {
if (columns.length == 0) {
throw new IllegalArgumentException("No columns specified");
}
mCurrentTableColumns = columns;
ps.println("<table>");
for (int i = 0; i < columns.length - 1; i++) {
ps.format("<th>%s</th>", columns[i].heading.html());
}
// Align the last header to the left so it's easier to see if the last
// column is very wide.
ps.format("<th align=\"left\">%s</th>", columns[columns.length - 1].heading.html());
}
@Override
public void table(DocString description, List<Column> subcols, List<Column> cols) {
mCurrentTableColumns = new Column[subcols.size() + cols.size()];
int j = 0;
for (Column col : subcols) {
mCurrentTableColumns[j] = col;
j++;
}
for (Column col : cols) {
mCurrentTableColumns[j] = col;
j++;
}
ps.println("<table>");
ps.format("<tr><th colspan=\"%d\">%s</th>", subcols.size(), description.html());
for (int i = 0; i < cols.size() - 1; i++) {
ps.format("<th rowspan=\"2\">%s</th>", cols.get(i).heading.html());
}
if (!cols.isEmpty()) {
// Align the last column header to the left so it can still be seen if
// the last column is very wide.
ps.format("<th align=\"left\" rowspan=\"2\">%s</th>",
cols.get(cols.size() - 1).heading.html());
}
ps.println("</tr>");
ps.print("<tr>");
for (Column subcol : subcols) {
ps.format("<th>%s</th>", subcol.heading.html());
}
ps.println("</tr>");
}
@Override
public void row(DocString... values) {
if (mCurrentTableColumns == null) {
throw new IllegalStateException("table method must be called before row");
}
if (mCurrentTableColumns.length != values.length) {
throw new IllegalArgumentException(String.format(
"Wrong number of row values. Expected %d, but got %d",
mCurrentTableColumns.length, values.length));
}
ps.print("<tr>");
for (int i = 0; i < values.length; i++) {
ps.print("<td");
if (mCurrentTableColumns[i].align == Column.Align.RIGHT) {
ps.print(" align=\"right\"");
}
ps.format(">%s</td>", values[i].html());
}
ps.println("</tr>");
}
@Override
public void descriptions() {
ps.println("<table>");
}
@Override
public void description(DocString key, DocString value) {
ps.format("<tr><th align=\"left\">%s:</th><td>%s</td></tr>", key.html(), value.html());
}
@Override
public void end() {
ps.println("</table>");
mCurrentTableColumns = null;
}
@Override
public void close() {
ps.println("</body>");
ps.println("</html>");
ps.close();
}
}