// Copyright (C) 2008 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.changes;
import static com.google.gerrit.client.FormatUtil.shortFormat;
import com.google.gerrit.client.Gerrit;
import com.google.gerrit.client.ui.AccountLinkPanel;
import com.google.gerrit.client.ui.BranchLink;
import com.google.gerrit.client.ui.ChangeLink;
import com.google.gerrit.client.ui.NavigationTable;
import com.google.gerrit.client.ui.NeedsSignInKeyCommand;
import com.google.gerrit.client.ui.ProjectLink;
import com.google.gerrit.common.PageLinks;
import com.google.gerrit.common.data.AccountInfoCache;
import com.google.gerrit.common.data.ChangeInfo;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyPressEvent;
import com.google.gwt.user.client.ui.FlexTable.FlexCellFormatter;
import com.google.gwt.user.client.ui.HTMLTable.Cell;
import com.google.gwt.user.client.ui.HTMLTable.CellFormatter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
public class ChangeTable extends NavigationTable<ChangeInfo> {
private static final int C_STAR = 1;
private static final int C_SUBJECT = 2;
private static final int C_OWNER = 3;
private static final int C_PROJECT = 4;
private static final int C_BRANCH = 5;
private static final int C_LAST_UPDATE = 6;
private static final int COLUMNS = 7;
private final List<Section> sections;
private AccountInfoCache accountCache = AccountInfoCache.empty();
public ChangeTable() {
super(Util.C.changeItemHelp());
if (Gerrit.isSignedIn()) {
keysAction.add(new StarKeyCommand(0, 's', Util.C.changeTableStar()));
}
sections = new ArrayList<>();
table.setText(0, C_STAR, "");
table.setText(0, C_SUBJECT, Util.C.changeTableColumnSubject());
table.setText(0, C_OWNER, Util.C.changeTableColumnOwner());
table.setText(0, C_PROJECT, Util.C.changeTableColumnProject());
table.setText(0, C_BRANCH, Util.C.changeTableColumnBranch());
table.setText(0, C_LAST_UPDATE, Util.C.changeTableColumnLastUpdate());
final FlexCellFormatter fmt = table.getFlexCellFormatter();
fmt.addStyleName(0, C_STAR, Gerrit.RESOURCES.css().iconHeader());
for (int i = C_SUBJECT; i < COLUMNS; i++) {
fmt.addStyleName(0, i, Gerrit.RESOURCES.css().dataHeader());
}
table.addClickHandler(new ClickHandler() {
@Override
public void onClick(final ClickEvent event) {
final Cell cell = table.getCellForEvent(event);
if (cell == null) {
return;
}
if (cell.getCellIndex() == C_STAR) {
// Don't do anything (handled by star itself).
} else if (cell.getCellIndex() == C_OWNER) {
// Don't do anything.
} else if (getRowItem(cell.getRowIndex()) != null) {
movePointerTo(cell.getRowIndex());
}
}
});
}
protected void onStarClick(final int row) {
final ChangeInfo c = getRowItem(row);
if (c != null && Gerrit.isSignedIn()) {
((StarredChanges.Icon) table.getWidget(row, C_STAR)).toggleStar();
}
}
@Override
protected Object getRowItemKey(final ChangeInfo item) {
return item.getId();
}
@Override
protected void onOpenRow(final int row) {
final ChangeInfo c = getRowItem(row);
Gerrit.display(PageLinks.toChange(c), new ChangeScreen(c));
}
private void insertNoneRow(final int row) {
insertRow(row);
table.setText(row, 0, Util.C.changeTableNone());
final FlexCellFormatter fmt = table.getFlexCellFormatter();
fmt.setColSpan(row, 0, COLUMNS);
fmt.setStyleName(row, 0, Gerrit.RESOURCES.css().emptySection());
}
private void insertChangeRow(final int row) {
insertRow(row);
applyDataRowStyle(row);
}
@Override
protected void applyDataRowStyle(final int row) {
super.applyDataRowStyle(row);
final CellFormatter fmt = table.getCellFormatter();
fmt.addStyleName(row, C_STAR, Gerrit.RESOURCES.css().iconCell());
for (int i = C_SUBJECT; i < COLUMNS; i++) {
fmt.addStyleName(row, i, Gerrit.RESOURCES.css().dataCell());
}
fmt.addStyleName(row, C_SUBJECT, Gerrit.RESOURCES.css().cSUBJECT());
fmt.addStyleName(row, C_OWNER, Gerrit.RESOURCES.css().cOWNER());
fmt.addStyleName(row, C_LAST_UPDATE, Gerrit.RESOURCES.css().cLastUpdate());
}
private void populateChangeRow(final int row, final ChangeInfo c,
final ChangeRowFormatter changeRowFormatter) {
ChangeCache cache = ChangeCache.get(c.getId());
cache.getChangeInfoCache().set(c);
table.setWidget(row, C_ARROW, null);
if (Gerrit.isSignedIn()) {
table.setWidget(row, C_STAR, StarredChanges.createIcon(c.getId(), c.isStarred()));
}
String s = Util.cropSubject(c.getSubject());
if (c.getStatus() != null && c.getStatus() != Change.Status.NEW) {
s += " (" + c.getStatus().name() + ")";
}
if (changeRowFormatter != null) {
removeChangeStyle(row, changeRowFormatter);
final String rowStyle = changeRowFormatter.getRowStyle(c);
if (rowStyle != null) {
table.getRowFormatter().addStyleName(row, rowStyle);
}
s = changeRowFormatter.getDisplayText(c, s);
}
table.setWidget(row, C_SUBJECT, new TableChangeLink(s, c));
table.setWidget(row, C_OWNER, link(c.getOwner()));
table.setWidget(row, C_PROJECT, new ProjectLink(c.getProject().getKey()));
table.setWidget(row, C_BRANCH, new BranchLink(c.getProject().getKey(), c
.getStatus(), c.getBranch(), c.getTopic()));
table.setText(row, C_LAST_UPDATE, shortFormat(c.getLastUpdatedOn()));
setRowItem(row, c);
}
private void removeChangeStyle(int row,
final ChangeRowFormatter changeRowFormatter) {
final ChangeInfo oldChange = getRowItem(row);
if (oldChange == null) {
return;
}
final String oldRowStyle = changeRowFormatter.getRowStyle(oldChange);
if (oldRowStyle != null) {
table.getRowFormatter().removeStyleName(row, oldRowStyle);
}
}
private AccountLinkPanel link(final Account.Id id) {
return AccountLinkPanel.link(accountCache, id);
}
public void addSection(final Section s) {
assert s.parent == null;
if (s.titleText != null) {
s.titleRow = table.getRowCount();
table.setText(s.titleRow, 0, s.titleText);
final FlexCellFormatter fmt = table.getFlexCellFormatter();
fmt.setColSpan(s.titleRow, 0, COLUMNS);
fmt.addStyleName(s.titleRow, 0, Gerrit.RESOURCES.css().sectionHeader());
} else {
s.titleRow = -1;
}
s.parent = this;
s.dataBegin = table.getRowCount();
insertNoneRow(s.dataBegin);
sections.add(s);
}
public void setAccountInfoCache(final AccountInfoCache aic) {
assert aic != null;
accountCache = aic;
}
private int insertRow(final int beforeRow) {
for (final Section s : sections) {
if (beforeRow <= s.titleRow) {
s.titleRow++;
}
if (beforeRow < s.dataBegin) {
s.dataBegin++;
}
}
return table.insertRow(beforeRow);
}
private void removeRow(final int row) {
for (final Section s : sections) {
if (row < s.titleRow) {
s.titleRow--;
}
if (row < s.dataBegin) {
s.dataBegin--;
}
}
table.removeRow(row);
}
public class StarKeyCommand extends NeedsSignInKeyCommand {
public StarKeyCommand(int mask, char key, String help) {
super(mask, key, help);
}
@Override
public void onKeyPress(final KeyPressEvent event) {
onStarClick(getCurrentRow());
}
}
private final class TableChangeLink extends ChangeLink {
private TableChangeLink(final String text, final ChangeInfo c) {
super(text, c);
}
@Override
public void go() {
movePointerTo(cid);
super.go();
}
}
public static class Section {
String titleText;
ChangeTable parent;
final Account.Id ownerId;
int titleRow = -1;
int dataBegin;
int rows;
private ChangeRowFormatter changeRowFormatter;
public Section() {
this(null, null);
}
public Section(final String titleText) {
this(titleText, null);
}
public Section(final String titleText, final Account.Id owner) {
setTitleText(titleText);
ownerId = owner;
}
public void setTitleText(final String text) {
titleText = text;
if (titleRow >= 0) {
parent.table.setText(titleRow, 0, titleText);
}
}
public void setChangeRowFormatter(final ChangeRowFormatter changeRowFormatter) {
this.changeRowFormatter = changeRowFormatter;
}
public void display(final List<ChangeInfo> changeList) {
final int sz = changeList != null ? changeList.size() : 0;
final boolean hadData = rows > 0;
if (hadData) {
while (sz < rows) {
parent.removeRow(dataBegin);
rows--;
}
}
if (sz == 0) {
if (hadData) {
parent.insertNoneRow(dataBegin);
}
} else {
Set<Change.Id> cids = new HashSet<>();
if (!hadData) {
parent.removeRow(dataBegin);
}
while (rows < sz) {
parent.insertChangeRow(dataBegin + rows);
rows++;
}
for (int i = 0; i < sz; i++) {
ChangeInfo c = changeList.get(i);
parent.populateChangeRow(dataBegin + i, c, changeRowFormatter);
cids.add(c.getId());
}
}
}
}
public static interface ChangeRowFormatter {
/**
* Returns the name of the CSS style that should be applied to the change
* row.
*
* @param c the change for which the styling should be returned
* @return the name of the CSS style that should be applied to the change
* row
*/
String getRowStyle(ChangeInfo c);
/**
* Returns the text that should be displayed for the change.
*
* @param c the change for which the display text should be returned
* @param displayText the current display text
* @return the new display text
*/
String getDisplayText(ChangeInfo c, String displayText);
}
}