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// Copyright (C) 2009 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.google.gerrit.client.ui;
import com.google.gerrit.client.FormatUtil;
import com.google.gerrit.client.Gerrit;
import com.google.gerrit.client.data.AccountInfo;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.DoubleClickEvent;
import com.google.gwt.event.dom.client.DoubleClickHandler;
import com.google.gwt.event.dom.client.HasDoubleClickHandlers;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HasHorizontalAlignment;
import com.google.gwt.user.client.ui.InlineLabel;
import com.google.gwt.user.client.ui.Panel;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwt.user.client.ui.HTMLTable.CellFormatter;
import com.google.gwtexpui.safehtml.client.SafeHtml;
import com.google.gwtexpui.safehtml.client.SafeHtmlBuilder;
import java.util.Date;
public class CommentPanel extends Composite implements HasDoubleClickHandlers {
private static final int SUMMARY_LENGTH = 75;
private final FlexTable header;
private final InlineLabel messageSummary;
private final FlowPanel content;
private final DoubleClickHTML messageText;
private FlowPanel buttons;
private boolean recent;
public CommentPanel(final AccountInfo author, final Date when, String message) {
this();
setMessageText(message);
setAuthorNameText(FormatUtil.name(author));
setDateText(FormatUtil.shortFormat(when));
final CellFormatter fmt = header.getCellFormatter();
fmt.getElement(0, 0).setTitle(FormatUtil.nameEmail(author));
fmt.getElement(0, 2).setTitle(FormatUtil.mediumFormat(when));
}
protected CommentPanel() {
final FlowPanel body = new FlowPanel();
initWidget(body);
setStyleName("gerrit-CommentPanel");
messageSummary = new InlineLabel();
messageSummary.setStyleName("gerrit-CommentPanel-Summary");
header = new FlexTable();
header.setStyleName("gerrit-CommentPanel-Header");
header.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
setOpen(!isOpen());
}
});
header.setText(0, 0, "");
header.setWidget(0, 1, messageSummary);
header.setText(0, 2, "");
final CellFormatter fmt = header.getCellFormatter();
fmt.setStyleName(0, 0, "gerrit-CommentPanel-AuthorCell");
fmt.setStyleName(0, 1, "gerrit-CommentPanel-SummaryCell");
fmt.setStyleName(0, 2, "gerrit-CommentPanel-DateCell");
fmt.setHorizontalAlignment(0, 2, HasHorizontalAlignment.ALIGN_RIGHT);
body.add(header);
content = new FlowPanel();
content.setStyleName("gerrit-CommentPanel-Content");
content.setVisible(false);
body.add(content);
messageText = new DoubleClickHTML();
messageText.setStyleName("gerrit-CommentPanel-Message");
content.add(messageText);
}
@Override
public HandlerRegistration addDoubleClickHandler(DoubleClickHandler handler) {
return messageText.addDoubleClickHandler(handler);
}
protected void setMessageText(String message) {
if (message == null) {
message = "";
} else {
message = message.trim();
}
messageSummary.setText(summarize(message));
SafeHtml.set(messageText, new SafeHtmlBuilder().append(message).wikify()
.replaceAll(Gerrit.getConfig().getCommentLinks()));
}
public void setAuthorNameText(final String nameText) {
header.setText(0, 0, nameText);
}
protected void setDateText(final String dateText) {
header.setText(0, 2, dateText);
}
protected void setMessageTextVisible(final boolean show) {
messageText.setVisible(show);
}
protected void addContent(final Widget w) {
if (buttons != null) {
content.insert(w, content.getWidgetIndex(buttons));
} else {
content.add(w);
}
}
protected Panel getButtonPanel() {
if (buttons == null) {
buttons = new FlowPanel();
buttons.setStyleName("gerrit-CommentPanel-Buttons");
content.add(buttons);
}
return buttons;
}
private static String summarize(final String message) {
if (message.length() < SUMMARY_LENGTH) {
return message;
}
int p = 0;
final StringBuilder r = new StringBuilder();
while (r.length() < SUMMARY_LENGTH) {
final int e = message.indexOf(' ', p);
if (e < 0) {
break;
}
final String word = message.substring(p, e).trim();
if (SUMMARY_LENGTH <= r.length() + word.length() + 1) {
break;
}
if (r.length() > 0) {
r.append(' ');
}
r.append(word);
p = e + 1;
}
r.append(" \u2026");
return r.toString();
}
public boolean isOpen() {
return content.isVisible();
}
public void setOpen(final boolean open) {
messageSummary.setVisible(!open);
content.setVisible(open);
}
public boolean isRecent() {
return recent;
}
public void setRecent(final boolean r) {
recent = r;
}
private static class DoubleClickHTML extends HTML implements
HasDoubleClickHandlers {
public HandlerRegistration addDoubleClickHandler(DoubleClickHandler handler) {
return addDomHandler(handler, DoubleClickEvent.getType());
}
}
}
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