gerrit-gwtui/src/main/java/com/google/gerrit/client/changes/ChangeTable2.java - gerrit - Git at Google

 // 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.changes.ChangeInfo.LabelInfo;
 import com.google.gerrit.client.ui.BranchLink;
 import com.google.gerrit.client.ui.ChangeLink;
 import com.google.gerrit.client.ui.InlineHyperlink;
 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.reviewdb.client.Change;
 import com.google.gwt.dom.client.Element;
 import com.google.gwt.event.dom.client.ClickEvent;
 import com.google.gwt.event.dom.client.ClickHandler;
 import com.google.gwt.event.dom.client.KeyCodes;
 import com.google.gwt.event.dom.client.KeyPressEvent;
 import com.google.gwt.user.client.DOM;
 import com.google.gwt.user.client.ui.FlexTable.FlexCellFormatter;
 import com.google.gwt.user.client.ui.FlowPanel;
 import com.google.gwt.user.client.ui.HTMLTable.Cell;
 import com.google.gwt.user.client.ui.HTMLTable.CellFormatter;
 import com.google.gwt.user.client.ui.Image;
 import com.google.gwt.user.client.ui.InlineLabel;
 import com.google.gwt.user.client.ui.UIObject;

 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;

 public class ChangeTable2 extends NavigationTable<ChangeInfo> {
   private static final int C_STAR = 1;
   private static final int C_ID = 2;
   private static final int C_SUBJECT = 3;
   private static final int C_OWNER = 4;
   private static final int C_PROJECT = 5;
   private static final int C_BRANCH = 6;
   private static final int C_LAST_UPDATE = 7;
   private static final int BASE_COLUMNS = 8;

   private final List<Section> sections;
   private int columns;
   private List<String> labelNames;

   public ChangeTable2() {
     columns = BASE_COLUMNS;
     labelNames = Collections.emptyList();

     keysNavigation.add(new PrevKeyCommand(0, 'k', Util.C.changeTablePrev()));
     keysNavigation.add(new NextKeyCommand(0, 'j', Util.C.changeTableNext()));
     keysNavigation.add(new OpenKeyCommand(0, 'o', Util.C.changeTableOpen()));
     keysNavigation.add(
         new OpenKeyCommand(0, KeyCodes.KEY_ENTER, Util.C.changeTableOpen()));

     if (Gerrit.isSignedIn()) {
       keysAction.add(new StarKeyCommand(0, 's', Util.C.changeTableStar()));
     }

     sections = new ArrayList<Section>();
     table.setText(0, C_STAR, "");
     table.setText(0, C_ID, Util.C.changeTableColumnID());
     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());
     fmt.addStyleName(0, C_ID, Gerrit.RESOURCES.css().cID());
     for (int i = C_ID; 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());
         }
       }
     });
   }

   @Override
   protected Object getRowItemKey(final ChangeInfo item) {
     return item.legacy_id();
   }

   @Override
   protected void onOpenRow(final int row) {
     final ChangeInfo c = getRowItem(row);
     final Change.Id id = c.legacy_id();
     Gerrit.display(PageLinks.toChange(id), new ChangeScreen(id));
   }

   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_ID; i < columns; i++) {
       fmt.addStyleName(row, i, Gerrit.RESOURCES.css().dataCell());
     }
     fmt.addStyleName(row, C_ID, Gerrit.RESOURCES.css().cID());
     fmt.addStyleName(row, C_SUBJECT, Gerrit.RESOURCES.css().cSUBJECT());
     fmt.addStyleName(row, C_PROJECT, Gerrit.RESOURCES.css().cPROJECT());
     fmt.addStyleName(row, C_BRANCH, Gerrit.RESOURCES.css().cPROJECT());
     fmt.addStyleName(row, C_LAST_UPDATE, Gerrit.RESOURCES.css().cLastUpdate());
     for (int i = BASE_COLUMNS; i < columns; i++) {
       fmt.addStyleName(row, i, Gerrit.RESOURCES.css().cAPPROVAL());
     }
   }

   public void updateColumnsForLabels(ChangeList... lists) {
     labelNames = new ArrayList<String>();
     for (ChangeList list : lists) {
       for (int i = 0; i < list.size(); i++) {
         for (String name : list.get(i).labels()) {
           if (!labelNames.contains(name)) {
             labelNames.add(name);
           }
         }
       }
     }
     Collections.sort(labelNames);

     if (BASE_COLUMNS + labelNames.size() < columns) {
       int n = columns - (BASE_COLUMNS + labelNames.size());
       for (int row = 0; row < table.getRowCount(); row++) {
         table.removeCells(row, columns, n);
       }
     }
     columns = BASE_COLUMNS + labelNames.size();

     FlexCellFormatter fmt = table.getFlexCellFormatter();
     for (int i = 0; i < labelNames.size(); i++) {
       String name = labelNames.get(i);
       int col = BASE_COLUMNS + i;

       StringBuilder abbrev = new StringBuilder();
       for (String t : name.split("-")) {
         abbrev.append(t.substring(0, 1).toUpperCase());
       }
       table.setText(0, col, abbrev.toString());
       table.getCellFormatter().getElement(0, col).setTitle(name);
       fmt.addStyleName(0, col, Gerrit.RESOURCES.css().dataHeader());
     }

     for (Section s : sections) {
       if (s.titleRow >= 0) {
         fmt.setColSpan(s.titleRow, 0, columns);
       }
     }
   }

   private void populateChangeRow(final int row, final ChangeInfo c,
       boolean highlightUnreviewed) {
     if (Gerrit.isSignedIn()) {
       table.setWidget(row, C_STAR, StarredChanges.createIcon(
           c.legacy_id(),
           c.starred()));
     }
     table.setWidget(row, C_ID, new TableChangeLink(c.id_abbreviated(), c));

     String subject = Util.cropSubject(c.subject());
     Change.Status status = c.status();
     if (status != Change.Status.NEW) {
       subject += " (" + Util.toLongString(status) + ")";
     }
     table.setWidget(row, C_SUBJECT, new TableChangeLink(subject, c));

     String owner = "";
     if (c.owner() != null && c.owner().name() != null) {
       owner = c.owner().name();
     }

     table.setWidget(row, C_OWNER, new InlineHyperlink(owner,
         PageLinks.toAccountQuery(owner)));

     table.setWidget(
         row, C_PROJECT, new ProjectLink(c.project_name_key(), c.status()));
     table.setWidget(row, C_BRANCH, new BranchLink(c.project_name_key(), c
         .status(), c.branch(), c.topic()));
     table.setText(row, C_LAST_UPDATE, shortFormat(c.updated()));

     boolean displayName = Gerrit.isSignedIn() && Gerrit.getUserAccount()
         .getGeneralPreferences().isShowUsernameInReviewCategory();

     CellFormatter fmt = table.getCellFormatter();
     for (int idx = 0; idx < labelNames.size(); idx++) {
       String name = labelNames.get(idx);
       int col = BASE_COLUMNS + idx;

       LabelInfo label = c.label(name);
       if (label == null) {
         table.clearCell(row, col);
         continue;
       }

       String user;
       if (label.rejected() != null) {
         user = label.rejected().name();
         if (displayName && user != null) {
           FlowPanel panel = new FlowPanel();
           panel.add(new Image(Gerrit.RESOURCES.redNot()));
           panel.add(new InlineLabel(user));
           table.setWidget(row, col, panel);
         } else {
           table.setWidget(row, col, new Image(Gerrit.RESOURCES.redNot()));
         }
       } else if (label.approved() != null) {
         user = label.approved().name();
         if (displayName && user != null) {
           FlowPanel panel = new FlowPanel();
           panel.add(new Image(Gerrit.RESOURCES.greenCheck()));
           panel.add(new InlineLabel(user));
           table.setWidget(row, col, panel);
         } else {
           table.setWidget(row, col, new Image(Gerrit.RESOURCES.greenCheck()));
         }
       } else if (label.disliked() != null) {
         user = label.disliked().name();
         String vstr = String.valueOf(label._value());
         if (displayName && user != null) {
           vstr = vstr + " " + user;
         }
         fmt.addStyleName(row, col, Gerrit.RESOURCES.css().negscore());
         table.setText(row, col, vstr);
       } else if (label.recommended() != null) {
         user = label.recommended().name();
         String vstr = "+" + label._value();
         if (displayName && user != null) {
           vstr = vstr + " " + user;
         }
         fmt.addStyleName(row, col, Gerrit.RESOURCES.css().posscore());
         table.setText(row, col, vstr);
       } else {
         table.clearCell(row, col);
         continue;
       }
       fmt.addStyleName(row, col, Gerrit.RESOURCES.css().singleLine());

       if (!displayName && user != null) {
         // Some web browsers ignore the embedded newline; some like it;
         // so we include a space before the newline to accommodate both.
         fmt.getElement(row, col).setTitle(name + " \nby " + user);
       }
     }

     boolean needHighlight = false;
     if (highlightUnreviewed && !c.reviewed()) {
       needHighlight = true;
     }
     final Element tr = DOM.getParent(fmt.getElement(row, 0));
     UIObject.setStyleName(tr, Gerrit.RESOURCES.css().needsReview(),
         needHighlight);

     setRowItem(row, c);
   }

   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);
   }

   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) {
       int row = getCurrentRow();
       ChangeInfo c = getRowItem(row);
       if (c != null && Gerrit.isSignedIn()) {
         ((StarredChanges.Icon) table.getWidget(row, C_STAR)).toggleStar();
       }
     }
   }

   private final class TableChangeLink extends ChangeLink {
     private TableChangeLink(final String text, final ChangeInfo c) {
       super(text, c.legacy_id());
     }

     @Override
     public void go() {
       movePointerTo(cid);
       super.go();
     }
   }

   public static class Section {
     ChangeTable2 parent;
     String titleText;
     int titleRow = -1;
     int dataBegin;
     int rows;
     private boolean highlightUnreviewed;

     public void setHighlightUnreviewed(boolean value) {
       this.highlightUnreviewed = value;
     }

     public void setTitleText(final String text) {
       titleText = text;
       if (titleRow >= 0) {
         parent.table.setText(titleRow, 0, titleText);
       }
     }

     public void display(ChangeList changeList) {
       final int sz = changeList != null ? changeList.size() : 0;
       final boolean hadData = rows > 0;

       if (hadData) {
         while (sz < rows) {
           parent.removeRow(dataBegin);
           rows--;
         }
       } else {
         parent.removeRow(dataBegin);
       }

       if (sz == 0) {
         parent.insertNoneRow(dataBegin);
         return;
       }

       while (rows < sz) {
         parent.insertChangeRow(dataBegin + rows);
         rows++;
       }
       for (int i = 0; i < sz; i++) {
         parent.populateChangeRow(dataBegin + i, changeList.get(i),
             highlightUnreviewed);
       }
     }
   }
 }
	// 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.changes.ChangeInfo.LabelInfo;
	import com.google.gerrit.client.ui.BranchLink;
	import com.google.gerrit.client.ui.ChangeLink;
	import com.google.gerrit.client.ui.InlineHyperlink;
	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.reviewdb.client.Change;
	import com.google.gwt.dom.client.Element;
	import com.google.gwt.event.dom.client.ClickEvent;
	import com.google.gwt.event.dom.client.ClickHandler;
	import com.google.gwt.event.dom.client.KeyCodes;
	import com.google.gwt.event.dom.client.KeyPressEvent;
	import com.google.gwt.user.client.DOM;
	import com.google.gwt.user.client.ui.FlexTable.FlexCellFormatter;
	import com.google.gwt.user.client.ui.FlowPanel;
	import com.google.gwt.user.client.ui.HTMLTable.Cell;
	import com.google.gwt.user.client.ui.HTMLTable.CellFormatter;
	import com.google.gwt.user.client.ui.Image;
	import com.google.gwt.user.client.ui.InlineLabel;
	import com.google.gwt.user.client.ui.UIObject;

	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.List;

	public class ChangeTable2 extends NavigationTable<ChangeInfo> {
	private static final int C_STAR = 1;
	private static final int C_ID = 2;
	private static final int C_SUBJECT = 3;
	private static final int C_OWNER = 4;
	private static final int C_PROJECT = 5;
	private static final int C_BRANCH = 6;
	private static final int C_LAST_UPDATE = 7;
	private static final int BASE_COLUMNS = 8;

	private final List<Section> sections;
	private int columns;
	private List<String> labelNames;

	public ChangeTable2() {
	columns = BASE_COLUMNS;
	labelNames = Collections.emptyList();

	keysNavigation.add(new PrevKeyCommand(0, 'k', Util.C.changeTablePrev()));
	keysNavigation.add(new NextKeyCommand(0, 'j', Util.C.changeTableNext()));
	keysNavigation.add(new OpenKeyCommand(0, 'o', Util.C.changeTableOpen()));
	keysNavigation.add(
	new OpenKeyCommand(0, KeyCodes.KEY_ENTER, Util.C.changeTableOpen()));

	if (Gerrit.isSignedIn()) {
	keysAction.add(new StarKeyCommand(0, 's', Util.C.changeTableStar()));
	}

	sections = new ArrayList<Section>();
	table.setText(0, C_STAR, "");
	table.setText(0, C_ID, Util.C.changeTableColumnID());
	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());
	fmt.addStyleName(0, C_ID, Gerrit.RESOURCES.css().cID());
	for (int i = C_ID; 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());
	}
	}
	});
	}

	@Override
	protected Object getRowItemKey(final ChangeInfo item) {
	return item.legacy_id();
	}

	@Override
	protected void onOpenRow(final int row) {
	final ChangeInfo c = getRowItem(row);
	final Change.Id id = c.legacy_id();
	Gerrit.display(PageLinks.toChange(id), new ChangeScreen(id));
	}

	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_ID; i < columns; i++) {
	fmt.addStyleName(row, i, Gerrit.RESOURCES.css().dataCell());
	}
	fmt.addStyleName(row, C_ID, Gerrit.RESOURCES.css().cID());
	fmt.addStyleName(row, C_SUBJECT, Gerrit.RESOURCES.css().cSUBJECT());
	fmt.addStyleName(row, C_PROJECT, Gerrit.RESOURCES.css().cPROJECT());
	fmt.addStyleName(row, C_BRANCH, Gerrit.RESOURCES.css().cPROJECT());
	fmt.addStyleName(row, C_LAST_UPDATE, Gerrit.RESOURCES.css().cLastUpdate());
	for (int i = BASE_COLUMNS; i < columns; i++) {
	fmt.addStyleName(row, i, Gerrit.RESOURCES.css().cAPPROVAL());
	}
	}

	public void updateColumnsForLabels(ChangeList... lists) {
	labelNames = new ArrayList<String>();
	for (ChangeList list : lists) {
	for (int i = 0; i < list.size(); i++) {
	for (String name : list.get(i).labels()) {
	if (!labelNames.contains(name)) {
	labelNames.add(name);
	}
	}
	}
	}
	Collections.sort(labelNames);

	if (BASE_COLUMNS + labelNames.size() < columns) {
	int n = columns - (BASE_COLUMNS + labelNames.size());
	for (int row = 0; row < table.getRowCount(); row++) {
	table.removeCells(row, columns, n);
	}
	}
	columns = BASE_COLUMNS + labelNames.size();

	FlexCellFormatter fmt = table.getFlexCellFormatter();
	for (int i = 0; i < labelNames.size(); i++) {
	String name = labelNames.get(i);
	int col = BASE_COLUMNS + i;

	StringBuilder abbrev = new StringBuilder();
	for (String t : name.split("-")) {
	abbrev.append(t.substring(0, 1).toUpperCase());
	}
	table.setText(0, col, abbrev.toString());
	table.getCellFormatter().getElement(0, col).setTitle(name);
	fmt.addStyleName(0, col, Gerrit.RESOURCES.css().dataHeader());
	}

	for (Section s : sections) {
	if (s.titleRow >= 0) {
	fmt.setColSpan(s.titleRow, 0, columns);
	}
	}
	}

	private void populateChangeRow(final int row, final ChangeInfo c,
	boolean highlightUnreviewed) {
	if (Gerrit.isSignedIn()) {
	table.setWidget(row, C_STAR, StarredChanges.createIcon(
	c.legacy_id(),
	c.starred()));
	}
	table.setWidget(row, C_ID, new TableChangeLink(c.id_abbreviated(), c));

	String subject = Util.cropSubject(c.subject());
	Change.Status status = c.status();
	if (status != Change.Status.NEW) {
	subject += " (" + Util.toLongString(status) + ")";
	}
	table.setWidget(row, C_SUBJECT, new TableChangeLink(subject, c));

	String owner = "";
	if (c.owner() != null && c.owner().name() != null) {
	owner = c.owner().name();
	}

	table.setWidget(row, C_OWNER, new InlineHyperlink(owner,
	PageLinks.toAccountQuery(owner)));

	table.setWidget(
	row, C_PROJECT, new ProjectLink(c.project_name_key(), c.status()));
	table.setWidget(row, C_BRANCH, new BranchLink(c.project_name_key(), c
	.status(), c.branch(), c.topic()));
	table.setText(row, C_LAST_UPDATE, shortFormat(c.updated()));

	boolean displayName = Gerrit.isSignedIn() && Gerrit.getUserAccount()
	.getGeneralPreferences().isShowUsernameInReviewCategory();

	CellFormatter fmt = table.getCellFormatter();
	for (int idx = 0; idx < labelNames.size(); idx++) {
	String name = labelNames.get(idx);
	int col = BASE_COLUMNS + idx;

	LabelInfo label = c.label(name);
	if (label == null) {
	table.clearCell(row, col);
	continue;
	}

	String user;
	if (label.rejected() != null) {
	user = label.rejected().name();
	if (displayName && user != null) {
	FlowPanel panel = new FlowPanel();
	panel.add(new Image(Gerrit.RESOURCES.redNot()));
	panel.add(new InlineLabel(user));
	table.setWidget(row, col, panel);
	} else {
	table.setWidget(row, col, new Image(Gerrit.RESOURCES.redNot()));
	}
	} else if (label.approved() != null) {
	user = label.approved().name();
	if (displayName && user != null) {
	FlowPanel panel = new FlowPanel();
	panel.add(new Image(Gerrit.RESOURCES.greenCheck()));
	panel.add(new InlineLabel(user));
	table.setWidget(row, col, panel);
	} else {
	table.setWidget(row, col, new Image(Gerrit.RESOURCES.greenCheck()));
	}
	} else if (label.disliked() != null) {
	user = label.disliked().name();
	String vstr = String.valueOf(label._value());
	if (displayName && user != null) {
	vstr = vstr + " " + user;
	}
	fmt.addStyleName(row, col, Gerrit.RESOURCES.css().negscore());
	table.setText(row, col, vstr);
	} else if (label.recommended() != null) {
	user = label.recommended().name();
	String vstr = "+" + label._value();
	if (displayName && user != null) {
	vstr = vstr + " " + user;
	}
	fmt.addStyleName(row, col, Gerrit.RESOURCES.css().posscore());
	table.setText(row, col, vstr);
	} else {
	table.clearCell(row, col);
	continue;
	}
	fmt.addStyleName(row, col, Gerrit.RESOURCES.css().singleLine());

	if (!displayName && user != null) {
	// Some web browsers ignore the embedded newline; some like it;
	// so we include a space before the newline to accommodate both.
	fmt.getElement(row, col).setTitle(name + " \nby " + user);
	}
	}

	boolean needHighlight = false;
	if (highlightUnreviewed && !c.reviewed()) {
	needHighlight = true;
	}
	final Element tr = DOM.getParent(fmt.getElement(row, 0));
	UIObject.setStyleName(tr, Gerrit.RESOURCES.css().needsReview(),
	needHighlight);

	setRowItem(row, c);
	}

	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);
	}

	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) {
	int row = getCurrentRow();
	ChangeInfo c = getRowItem(row);
	if (c != null && Gerrit.isSignedIn()) {
	((StarredChanges.Icon) table.getWidget(row, C_STAR)).toggleStar();
	}
	}
	}

	private final class TableChangeLink extends ChangeLink {
	private TableChangeLink(final String text, final ChangeInfo c) {
	super(text, c.legacy_id());
	}

	@Override
	public void go() {
	movePointerTo(cid);
	super.go();
	}
	}

	public static class Section {
	ChangeTable2 parent;
	String titleText;
	int titleRow = -1;
	int dataBegin;
	int rows;
	private boolean highlightUnreviewed;

	public void setHighlightUnreviewed(boolean value) {
	this.highlightUnreviewed = value;
	}

	public void setTitleText(final String text) {
	titleText = text;
	if (titleRow >= 0) {
	parent.table.setText(titleRow, 0, titleText);
	}
	}

	public void display(ChangeList changeList) {
	final int sz = changeList != null ? changeList.size() : 0;
	final boolean hadData = rows > 0;

	if (hadData) {
	while (sz < rows) {
	parent.removeRow(dataBegin);
	rows--;
	}
	} else {
	parent.removeRow(dataBegin);
	}

	if (sz == 0) {
	parent.insertNoneRow(dataBegin);
	return;
	}

	while (rows < sz) {
	parent.insertChangeRow(dataBegin + rows);
	rows++;
	}
	for (int i = 0; i < sz; i++) {
	parent.populateChangeRow(dataBegin + i, changeList.get(i),
	highlightUnreviewed);
	}
	}
	}
	}