gerrit-gwtui/src/main/java/com/google/gerrit/client/change/ReplyBox.java - gerrit - Git at Google

 // Copyright (C) 2013 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.change;

 import static com.google.gwt.event.dom.client.KeyCodes.KEY_ENTER;

 import com.google.gerrit.client.Gerrit;
 import com.google.gerrit.client.changes.ChangeApi;
 import com.google.gerrit.client.changes.ChangeInfo.ApprovalInfo;
 import com.google.gerrit.client.changes.ChangeInfo.LabelInfo;
 import com.google.gerrit.client.changes.ChangeInfo.MessageInfo;
 import com.google.gerrit.client.changes.CommentApi;
 import com.google.gerrit.client.changes.CommentInfo;
 import com.google.gerrit.client.changes.ReviewInput;
 import com.google.gerrit.client.changes.Util;
 import com.google.gerrit.client.rpc.GerritCallback;
 import com.google.gerrit.client.rpc.NativeMap;
 import com.google.gerrit.client.rpc.Natives;
 import com.google.gerrit.client.ui.CommentLinkProcessor;
 import com.google.gerrit.common.PageLinks;
 import com.google.gerrit.common.data.LabelValue;
 import com.google.gerrit.reviewdb.client.Patch;
 import com.google.gerrit.reviewdb.client.PatchSet;
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.core.client.JsArray;
 import com.google.gwt.core.client.JsArrayString;
 import com.google.gwt.core.client.Scheduler;
 import com.google.gwt.core.client.Scheduler.RepeatingCommand;
 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
 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.KeyPressEvent;
 import com.google.gwt.event.dom.client.KeyPressHandler;
 import com.google.gwt.event.dom.client.MouseOutEvent;
 import com.google.gwt.event.dom.client.MouseOutHandler;
 import com.google.gwt.event.dom.client.MouseOverEvent;
 import com.google.gwt.event.dom.client.MouseOverHandler;
 import com.google.gwt.event.logical.shared.ValueChangeEvent;
 import com.google.gwt.event.logical.shared.ValueChangeHandler;
 import com.google.gwt.resources.client.CssResource;
 import com.google.gwt.uibinder.client.UiBinder;
 import com.google.gwt.uibinder.client.UiField;
 import com.google.gwt.uibinder.client.UiHandler;
 import com.google.gwt.user.client.rpc.AsyncCallback;
 import com.google.gwt.user.client.ui.Button;
 import com.google.gwt.user.client.ui.CheckBox;
 import com.google.gwt.user.client.ui.Composite;
 import com.google.gwt.user.client.ui.FlowPanel;
 import com.google.gwt.user.client.ui.Grid;
 import com.google.gwt.user.client.ui.HTMLPanel;
 import com.google.gwt.user.client.ui.HTMLTable.CellFormatter;
 import com.google.gwt.user.client.ui.PopupPanel;
 import com.google.gwt.user.client.ui.RadioButton;
 import com.google.gwt.user.client.ui.ScrollPanel;
 import com.google.gwt.user.client.ui.TextArea;
 import com.google.gwt.user.client.ui.UIObject;
 import com.google.gwt.user.client.ui.Widget;

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

 class ReplyBox extends Composite {
   interface Binder extends UiBinder<HTMLPanel, ReplyBox> {}
   private static final Binder uiBinder = GWT.create(Binder.class);

   interface Styles extends CssResource {
     String label_name();
     String label_value();
     String label_help();
   }

   private final CommentLinkProcessor clp;
   private final PatchSet.Id psId;
   private final String revision;
   private ReviewInput in = ReviewInput.create();
   private int labelHelpColumn;

   @UiField Styles style;
   @UiField TextArea message;
   @UiField Element labelsParent;
   @UiField Grid labelsTable;
   @UiField Button post;
   @UiField Button cancel;
   @UiField ScrollPanel commentsPanel;
   @UiField FlowPanel comments;

   ReplyBox(
       CommentLinkProcessor clp,
       PatchSet.Id psId,
       String revision,
       NativeMap<LabelInfo> all,
       NativeMap<JsArrayString> permitted) {
     this.clp = clp;
     this.psId = psId;
     this.revision = revision;
     initWidget(uiBinder.createAndBindUi(this));

     List<String> names = new ArrayList<>(permitted.keySet());
     if (names.isEmpty()) {
       UIObject.setVisible(labelsParent, false);
     } else {
       Collections.sort(names);
       renderLabels(names, all, permitted);
     }

     addDomHandler(
       new KeyPressHandler() {
         @Override
         public void onKeyPress(KeyPressEvent e) {
           e.stopPropagation();
           if ((e.getCharCode() == '\n' || e.getCharCode() == KEY_ENTER)
               && e.isControlKeyDown()) {
             e.preventDefault();
             if (post.isEnabled()) {
               onPost(null);
             }
           }
         }
       },
       KeyPressEvent.getType());
   }

   @Override
   protected void onLoad() {
     commentsPanel.setVisible(false);
     post.setEnabled(false);
     CommentApi.drafts(psId, new AsyncCallback<NativeMap<JsArray<CommentInfo>>>() {
       @Override
       public void onSuccess(NativeMap<JsArray<CommentInfo>> result) {
         attachComments(result);
         displayComments(result);
         post.setEnabled(true);
       }

       @Override
       public void onFailure(Throwable caught) {
         post.setEnabled(true);
       }
     });

     Scheduler.get().scheduleDeferred(new ScheduledCommand() {
       @Override
       public void execute() {
         message.setFocus(true);
       }});
     Scheduler.get().scheduleFixedDelay(new RepeatingCommand() {
       @Override
       public boolean execute() {
         String t = message.getText();
         if (t != null) {
           message.setCursorPos(t.length());
         }
         return false;
       }}, 0);
   }

   @UiHandler("post")
   void onPost(@SuppressWarnings("unused") ClickEvent e) {
     postReview();
   }

   void quickApprove(ReviewInput quickApproveInput) {
     in.mergeLabels(quickApproveInput);
     postReview();
   }

   private void postReview() {
     in.message(message.getText().trim());
     in.prePost();
     ChangeApi.revision(psId.getParentKey().get(), revision)
       .view("review")
       .post(in, new GerritCallback<ReviewInput>() {
         @Override
         public void onSuccess(ReviewInput result) {
           Gerrit.display(PageLinks.toChange(
               psId.getParentKey(),
               String.valueOf(psId.get())));
         }
       });
     hide();
   }

   @UiHandler("cancel")
   void onCancel(@SuppressWarnings("unused") ClickEvent e) {
     message.setText("");
     hide();
   }

   void replyTo(MessageInfo msg) {
     if (msg.message() != null) {
       String t = message.getText();
       String m = quote(msg);
       if (t == null || t.isEmpty()) {
         t = m;
       } else if (t.endsWith("\n\n")) {
         t += m;
       } else if (t.endsWith("\n")) {
         t += "\n" + m;
       } else {
         t += "\n\n" + m;
       }
       message.setText(t + "\n\n");
     }
   }

   private static String quote(MessageInfo msg) {
     String m = msg.message().trim();
     if (m.startsWith("Patch Set ")) {
       int i = m.indexOf('\n');
       if (i > 0) {
         m = m.substring(i + 1).trim();
       }
     }
     StringBuilder quotedMsg = new StringBuilder();
     for (String line : m.split("\\n")) {
       line = line.trim();
       while (line.length() > 67) {
         int i = line.lastIndexOf(' ', 67);
         if (i < 50) {
           i = line.indexOf(' ', 67);
         }
         if (i > 0) {
           quotedMsg.append(" > ").append(line.substring(0, i)).append("\n");
           line = line.substring(i + 1);
         } else {
           break;
         }
       }
       quotedMsg.append(" > ").append(line).append("\n");
     }
     return quotedMsg.toString().substring(0, quotedMsg.length() - 1); // remove last '\n'
   }

   private void hide() {
     for (Widget w = getParent(); w != null; w = w.getParent()) {
       if (w instanceof PopupPanel) {
         ((PopupPanel) w).hide();
         break;
       }
     }
   }

   private void renderLabels(
       List<String> names,
       NativeMap<LabelInfo> all,
       NativeMap<JsArrayString> permitted) {
     TreeSet<Short> values = new TreeSet<>();
     List<LabelAndValues> labels = new ArrayList<>(permitted.size());
     for (String id : names) {
       JsArrayString p = permitted.get(id);
       if (p != null) {
         Set<Short> a = new TreeSet<>();
         for (int i = 0; i < p.length(); i++) {
           a.add(LabelInfo.parseValue(p.get(i)));
         }
         labels.add(new LabelAndValues(all.get(id), a));
         values.addAll(a);
       }
     }
     List<Short> columns = new ArrayList<>(values);

     labelsTable.resize(1 + labels.size(), 2 + values.size());
     for (int c = 0; c < columns.size(); c++) {
       labelsTable.setText(0, 1 + c, LabelValue.formatValue(columns.get(c)));
       labelsTable.getCellFormatter().setStyleName(0, 1 + c, style.label_value());
     }

     List<LabelAndValues> checkboxes = new ArrayList<>(labels.size());
     int row = 1;
     for (LabelAndValues lv : labels) {
       if (isCheckBox(lv.info.value_set())) {
         checkboxes.add(lv);
       } else {
         renderRadio(row++, columns, lv);
       }
     }
     for (LabelAndValues lv : checkboxes) {
       renderCheckBox(row++, lv);
     }
   }

   private Short normalizeDefaultValue(Short defaultValue, Set<Short> permittedValues) {
     Short pmin = Collections.min(permittedValues);
     Short pmax = Collections.max(permittedValues);
     Short dv = defaultValue;
     if (dv > pmax) {
       dv = pmax;
     } else if (dv < pmin) {
       dv = pmin;
     }
     return dv;
   }

   private void renderRadio(int row,
       List<Short> columns,
       LabelAndValues lv) {
     String id = lv.info.name();
     Short dv = normalizeDefaultValue(lv.info.defaultValue(), lv.permitted);

     labelHelpColumn = 1 + columns.size();
     labelsTable.setText(row, 0, id);

     CellFormatter fmt = labelsTable.getCellFormatter();
     fmt.setStyleName(row, 0, style.label_name());
     fmt.setStyleName(row, labelHelpColumn, style.label_help());

     ApprovalInfo self = Gerrit.isSignedIn()
         ? lv.info.for_user(Gerrit.getUserAccount().getId().get())
         : null;

     final LabelRadioGroup group =
         new LabelRadioGroup(row, id, lv.permitted.size());
     for (int i = 0; i < columns.size(); i++) {
       Short v = columns.get(i);
       if (lv.permitted.contains(v)) {
         String text = lv.info.value_text(LabelValue.formatValue(v));
         LabelRadioButton b = new LabelRadioButton(group, text, v);
         if ((self != null && v == self.value()) || (self == null && v.equals(dv))) {
           b.setValue(true);
           group.select(b);
           in.label(group.label, v);
           labelsTable.setText(row, labelHelpColumn, b.text);
         }
         group.buttons.add(b);
         labelsTable.setWidget(row, 1 + i, b);
       }
     }
   }

   private void renderCheckBox(int row, LabelAndValues lv) {
     ApprovalInfo self = Gerrit.isSignedIn()
         ? lv.info.for_user(Gerrit.getUserAccount().getId().get())
         : null;

     final String id = lv.info.name();
     final CheckBox b = new CheckBox();
     b.setText(id);
     b.setEnabled(lv.permitted.contains((short) 1));
     if (self != null && self.value() == 1) {
       b.setValue(true);
     }
     b.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
       @Override
       public void onValueChange(ValueChangeEvent<Boolean> event) {
         in.label(id, event.getValue() ? (short) 1 : (short) 0);
       }
     });
     b.setStyleName(style.label_name());
     labelsTable.setWidget(row, 0, b);

     CellFormatter fmt = labelsTable.getCellFormatter();
     fmt.setStyleName(row, labelHelpColumn, style.label_help());
     labelsTable.setText(row, labelHelpColumn, lv.info.value_text("+1"));
   }

   private static boolean isCheckBox(Set<Short> values) {
     return values.size() == 2
         && values.contains((short) 0)
         && values.contains((short) 1);
   }

   private void attachComments(NativeMap<JsArray<CommentInfo>> result) {
     in.drafts(ReviewInput.DraftHandling.KEEP);
     in.comments(result);
   }

   private void displayComments(NativeMap<JsArray<CommentInfo>> m) {
     comments.clear();

     JsArray<CommentInfo> l = m.get(Patch.COMMIT_MSG);
     if (l != null) {
       comments.add(new FileComments(clp, psId,
           Util.C.commitMessage(), copyPath(Patch.COMMIT_MSG, l)));
     }

     List<String> paths = new ArrayList<>(m.keySet());
     Collections.sort(paths);

     for (String path : paths) {
       if (!path.equals(Patch.COMMIT_MSG)) {
         comments.add(new FileComments(clp, psId,
             path, copyPath(path, m.get(path))));
       }
     }

     commentsPanel.setVisible(comments.getWidgetCount() > 0);
   }

   private static List<CommentInfo> copyPath(String path, JsArray<CommentInfo> l) {
     for (int i = 0; i < l.length(); i++) {
       l.get(i).path(path);
     }
     return Natives.asList(l);
   }

   private static class LabelAndValues {
     final LabelInfo info;
     final Set<Short> permitted;

     LabelAndValues(LabelInfo info, Set<Short> permitted) {
       this.info = info;
       this.permitted = permitted;
     }
   }

   private class LabelRadioGroup {
     final int row;
     final String label;
     final List<LabelRadioButton> buttons;
     LabelRadioButton selected;

     LabelRadioGroup(int row, String label, int cnt) {
       this.row = row;
       this.label = label;
       this.buttons = new ArrayList<>(cnt);
     }

     void select(LabelRadioButton b) {
       selected = b;
       labelsTable.setText(row, labelHelpColumn, b.text);
     }
   }

   private class LabelRadioButton extends RadioButton implements
       ValueChangeHandler<Boolean>, ClickHandler, MouseOverHandler,
       MouseOutHandler {
     private final LabelRadioGroup group;
     private final String text;
     private final short value;

     LabelRadioButton(LabelRadioGroup group, String text, short value) {
       super(group.label);
       this.group = group;
       this.text = text;
       this.value = value;
       addValueChangeHandler(this);
       addClickHandler(this);
       addMouseOverHandler(this);
       addMouseOutHandler(this);
     }

     @Override
     public void onValueChange(ValueChangeEvent<Boolean> event) {
       if (event.getValue()) {
         select();
       }
     }

     @Override
     public void onClick(ClickEvent event) {
       select();
     }

     void select() {
       group.select(this);
       in.label(group.label, value);
     }

     @Override
     public void onMouseOver(MouseOverEvent event) {
       labelsTable.setText(group.row, labelHelpColumn, text);
     }

     @Override
     public void onMouseOut(MouseOutEvent event) {
       LabelRadioButton b = group.selected;
       String s = b != null ? b.text : "";
       labelsTable.setText(group.row, labelHelpColumn, s);
     }
   }
 }
	// Copyright (C) 2013 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.change;

	import static com.google.gwt.event.dom.client.KeyCodes.KEY_ENTER;

	import com.google.gerrit.client.Gerrit;
	import com.google.gerrit.client.changes.ChangeApi;
	import com.google.gerrit.client.changes.ChangeInfo.ApprovalInfo;
	import com.google.gerrit.client.changes.ChangeInfo.LabelInfo;
	import com.google.gerrit.client.changes.ChangeInfo.MessageInfo;
	import com.google.gerrit.client.changes.CommentApi;
	import com.google.gerrit.client.changes.CommentInfo;
	import com.google.gerrit.client.changes.ReviewInput;
	import com.google.gerrit.client.changes.Util;
	import com.google.gerrit.client.rpc.GerritCallback;
	import com.google.gerrit.client.rpc.NativeMap;
	import com.google.gerrit.client.rpc.Natives;
	import com.google.gerrit.client.ui.CommentLinkProcessor;
	import com.google.gerrit.common.PageLinks;
	import com.google.gerrit.common.data.LabelValue;
	import com.google.gerrit.reviewdb.client.Patch;
	import com.google.gerrit.reviewdb.client.PatchSet;
	import com.google.gwt.core.client.GWT;
	import com.google.gwt.core.client.JsArray;
	import com.google.gwt.core.client.JsArrayString;
	import com.google.gwt.core.client.Scheduler;
	import com.google.gwt.core.client.Scheduler.RepeatingCommand;
	import com.google.gwt.core.client.Scheduler.ScheduledCommand;
	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.KeyPressEvent;
	import com.google.gwt.event.dom.client.KeyPressHandler;
	import com.google.gwt.event.dom.client.MouseOutEvent;
	import com.google.gwt.event.dom.client.MouseOutHandler;
	import com.google.gwt.event.dom.client.MouseOverEvent;
	import com.google.gwt.event.dom.client.MouseOverHandler;
	import com.google.gwt.event.logical.shared.ValueChangeEvent;
	import com.google.gwt.event.logical.shared.ValueChangeHandler;
	import com.google.gwt.resources.client.CssResource;
	import com.google.gwt.uibinder.client.UiBinder;
	import com.google.gwt.uibinder.client.UiField;
	import com.google.gwt.uibinder.client.UiHandler;
	import com.google.gwt.user.client.rpc.AsyncCallback;
	import com.google.gwt.user.client.ui.Button;
	import com.google.gwt.user.client.ui.CheckBox;
	import com.google.gwt.user.client.ui.Composite;
	import com.google.gwt.user.client.ui.FlowPanel;
	import com.google.gwt.user.client.ui.Grid;
	import com.google.gwt.user.client.ui.HTMLPanel;
	import com.google.gwt.user.client.ui.HTMLTable.CellFormatter;
	import com.google.gwt.user.client.ui.PopupPanel;
	import com.google.gwt.user.client.ui.RadioButton;
	import com.google.gwt.user.client.ui.ScrollPanel;
	import com.google.gwt.user.client.ui.TextArea;
	import com.google.gwt.user.client.ui.UIObject;
	import com.google.gwt.user.client.ui.Widget;

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

	class ReplyBox extends Composite {
	interface Binder extends UiBinder<HTMLPanel, ReplyBox> {}
	private static final Binder uiBinder = GWT.create(Binder.class);

	interface Styles extends CssResource {
	String label_name();
	String label_value();
	String label_help();
	}

	private final CommentLinkProcessor clp;
	private final PatchSet.Id psId;
	private final String revision;
	private ReviewInput in = ReviewInput.create();
	private int labelHelpColumn;

	@UiField Styles style;
	@UiField TextArea message;
	@UiField Element labelsParent;
	@UiField Grid labelsTable;
	@UiField Button post;
	@UiField Button cancel;
	@UiField ScrollPanel commentsPanel;
	@UiField FlowPanel comments;

	ReplyBox(
	CommentLinkProcessor clp,
	PatchSet.Id psId,
	String revision,
	NativeMap<LabelInfo> all,
	NativeMap<JsArrayString> permitted) {
	this.clp = clp;
	this.psId = psId;
	this.revision = revision;
	initWidget(uiBinder.createAndBindUi(this));

	List<String> names = new ArrayList<>(permitted.keySet());
	if (names.isEmpty()) {
	UIObject.setVisible(labelsParent, false);
	} else {
	Collections.sort(names);
	renderLabels(names, all, permitted);
	}

	addDomHandler(
	new KeyPressHandler() {
	@Override
	public void onKeyPress(KeyPressEvent e) {
	e.stopPropagation();
	if ((e.getCharCode() == '\n' \|\| e.getCharCode() == KEY_ENTER)
	&& e.isControlKeyDown()) {
	e.preventDefault();
	if (post.isEnabled()) {
	onPost(null);
	}
	}
	}
	},
	KeyPressEvent.getType());
	}

	@Override
	protected void onLoad() {
	commentsPanel.setVisible(false);
	post.setEnabled(false);
	CommentApi.drafts(psId, new AsyncCallback<NativeMap<JsArray<CommentInfo>>>() {
	@Override
	public void onSuccess(NativeMap<JsArray<CommentInfo>> result) {
	attachComments(result);
	displayComments(result);
	post.setEnabled(true);
	}

	@Override
	public void onFailure(Throwable caught) {
	post.setEnabled(true);
	}
	});

	Scheduler.get().scheduleDeferred(new ScheduledCommand() {
	@Override
	public void execute() {
	message.setFocus(true);
	}});
	Scheduler.get().scheduleFixedDelay(new RepeatingCommand() {
	@Override
	public boolean execute() {
	String t = message.getText();
	if (t != null) {
	message.setCursorPos(t.length());
	}
	return false;
	}}, 0);
	}

	@UiHandler("post")
	void onPost(@SuppressWarnings("unused") ClickEvent e) {
	postReview();
	}

	void quickApprove(ReviewInput quickApproveInput) {
	in.mergeLabels(quickApproveInput);
	postReview();
	}

	private void postReview() {
	in.message(message.getText().trim());
	in.prePost();
	ChangeApi.revision(psId.getParentKey().get(), revision)
	.view("review")
	.post(in, new GerritCallback<ReviewInput>() {
	@Override
	public void onSuccess(ReviewInput result) {
	Gerrit.display(PageLinks.toChange(
	psId.getParentKey(),
	String.valueOf(psId.get())));
	}
	});
	hide();
	}

	@UiHandler("cancel")
	void onCancel(@SuppressWarnings("unused") ClickEvent e) {
	message.setText("");
	hide();
	}

	void replyTo(MessageInfo msg) {
	if (msg.message() != null) {
	String t = message.getText();
	String m = quote(msg);
	if (t == null \|\| t.isEmpty()) {
	t = m;
	} else if (t.endsWith("\n\n")) {
	t += m;
	} else if (t.endsWith("\n")) {
	t += "\n" + m;
	} else {
	t += "\n\n" + m;
	}
	message.setText(t + "\n\n");
	}
	}

	private static String quote(MessageInfo msg) {
	String m = msg.message().trim();
	if (m.startsWith("Patch Set ")) {
	int i = m.indexOf('\n');
	if (i > 0) {
	m = m.substring(i + 1).trim();
	}
	}
	StringBuilder quotedMsg = new StringBuilder();
	for (String line : m.split("\\n")) {
	line = line.trim();
	while (line.length() > 67) {
	int i = line.lastIndexOf(' ', 67);
	if (i < 50) {
	i = line.indexOf(' ', 67);
	}
	if (i > 0) {
	quotedMsg.append(" > ").append(line.substring(0, i)).append("\n");
	line = line.substring(i + 1);
	} else {
	break;
	}
	}
	quotedMsg.append(" > ").append(line).append("\n");
	}
	return quotedMsg.toString().substring(0, quotedMsg.length() - 1); // remove last '\n'
	}

	private void hide() {
	for (Widget w = getParent(); w != null; w = w.getParent()) {
	if (w instanceof PopupPanel) {
	((PopupPanel) w).hide();
	break;
	}
	}
	}

	private void renderLabels(
	List<String> names,
	NativeMap<LabelInfo> all,
	NativeMap<JsArrayString> permitted) {
	TreeSet<Short> values = new TreeSet<>();
	List<LabelAndValues> labels = new ArrayList<>(permitted.size());
	for (String id : names) {
	JsArrayString p = permitted.get(id);
	if (p != null) {
	Set<Short> a = new TreeSet<>();
	for (int i = 0; i < p.length(); i++) {
	a.add(LabelInfo.parseValue(p.get(i)));
	}
	labels.add(new LabelAndValues(all.get(id), a));
	values.addAll(a);
	}
	}
	List<Short> columns = new ArrayList<>(values);

	labelsTable.resize(1 + labels.size(), 2 + values.size());
	for (int c = 0; c < columns.size(); c++) {
	labelsTable.setText(0, 1 + c, LabelValue.formatValue(columns.get(c)));
	labelsTable.getCellFormatter().setStyleName(0, 1 + c, style.label_value());
	}

	List<LabelAndValues> checkboxes = new ArrayList<>(labels.size());
	int row = 1;
	for (LabelAndValues lv : labels) {
	if (isCheckBox(lv.info.value_set())) {
	checkboxes.add(lv);
	} else {
	renderRadio(row++, columns, lv);
	}
	}
	for (LabelAndValues lv : checkboxes) {
	renderCheckBox(row++, lv);
	}
	}

	private Short normalizeDefaultValue(Short defaultValue, Set<Short> permittedValues) {
	Short pmin = Collections.min(permittedValues);
	Short pmax = Collections.max(permittedValues);
	Short dv = defaultValue;
	if (dv > pmax) {
	dv = pmax;
	} else if (dv < pmin) {
	dv = pmin;
	}
	return dv;
	}

	private void renderRadio(int row,
	List<Short> columns,
	LabelAndValues lv) {
	String id = lv.info.name();
	Short dv = normalizeDefaultValue(lv.info.defaultValue(), lv.permitted);

	labelHelpColumn = 1 + columns.size();
	labelsTable.setText(row, 0, id);

	CellFormatter fmt = labelsTable.getCellFormatter();
	fmt.setStyleName(row, 0, style.label_name());
	fmt.setStyleName(row, labelHelpColumn, style.label_help());

	ApprovalInfo self = Gerrit.isSignedIn()
	? lv.info.for_user(Gerrit.getUserAccount().getId().get())
	: null;

	final LabelRadioGroup group =
	new LabelRadioGroup(row, id, lv.permitted.size());
	for (int i = 0; i < columns.size(); i++) {
	Short v = columns.get(i);
	if (lv.permitted.contains(v)) {
	String text = lv.info.value_text(LabelValue.formatValue(v));
	LabelRadioButton b = new LabelRadioButton(group, text, v);
	if ((self != null && v == self.value()) \|\| (self == null && v.equals(dv))) {
	b.setValue(true);
	group.select(b);
	in.label(group.label, v);
	labelsTable.setText(row, labelHelpColumn, b.text);
	}
	group.buttons.add(b);
	labelsTable.setWidget(row, 1 + i, b);
	}
	}
	}

	private void renderCheckBox(int row, LabelAndValues lv) {
	ApprovalInfo self = Gerrit.isSignedIn()
	? lv.info.for_user(Gerrit.getUserAccount().getId().get())
	: null;

	final String id = lv.info.name();
	final CheckBox b = new CheckBox();
	b.setText(id);
	b.setEnabled(lv.permitted.contains((short) 1));
	if (self != null && self.value() == 1) {
	b.setValue(true);
	}
	b.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
	@Override
	public void onValueChange(ValueChangeEvent<Boolean> event) {
	in.label(id, event.getValue() ? (short) 1 : (short) 0);
	}
	});
	b.setStyleName(style.label_name());
	labelsTable.setWidget(row, 0, b);

	CellFormatter fmt = labelsTable.getCellFormatter();
	fmt.setStyleName(row, labelHelpColumn, style.label_help());
	labelsTable.setText(row, labelHelpColumn, lv.info.value_text("+1"));
	}

	private static boolean isCheckBox(Set<Short> values) {
	return values.size() == 2
	&& values.contains((short) 0)
	&& values.contains((short) 1);
	}

	private void attachComments(NativeMap<JsArray<CommentInfo>> result) {
	in.drafts(ReviewInput.DraftHandling.KEEP);
	in.comments(result);
	}

	private void displayComments(NativeMap<JsArray<CommentInfo>> m) {
	comments.clear();

	JsArray<CommentInfo> l = m.get(Patch.COMMIT_MSG);
	if (l != null) {
	comments.add(new FileComments(clp, psId,
	Util.C.commitMessage(), copyPath(Patch.COMMIT_MSG, l)));
	}

	List<String> paths = new ArrayList<>(m.keySet());
	Collections.sort(paths);

	for (String path : paths) {
	if (!path.equals(Patch.COMMIT_MSG)) {
	comments.add(new FileComments(clp, psId,
	path, copyPath(path, m.get(path))));
	}
	}

	commentsPanel.setVisible(comments.getWidgetCount() > 0);
	}

	private static List<CommentInfo> copyPath(String path, JsArray<CommentInfo> l) {
	for (int i = 0; i < l.length(); i++) {
	l.get(i).path(path);
	}
	return Natives.asList(l);
	}

	private static class LabelAndValues {
	final LabelInfo info;
	final Set<Short> permitted;

	LabelAndValues(LabelInfo info, Set<Short> permitted) {
	this.info = info;
	this.permitted = permitted;
	}
	}

	private class LabelRadioGroup {
	final int row;
	final String label;
	final List<LabelRadioButton> buttons;
	LabelRadioButton selected;

	LabelRadioGroup(int row, String label, int cnt) {
	this.row = row;
	this.label = label;
	this.buttons = new ArrayList<>(cnt);
	}

	void select(LabelRadioButton b) {
	selected = b;
	labelsTable.setText(row, labelHelpColumn, b.text);
	}
	}

	private class LabelRadioButton extends RadioButton implements
	ValueChangeHandler<Boolean>, ClickHandler, MouseOverHandler,
	MouseOutHandler {
	private final LabelRadioGroup group;
	private final String text;
	private final short value;

	LabelRadioButton(LabelRadioGroup group, String text, short value) {
	super(group.label);
	this.group = group;
	this.text = text;
	this.value = value;
	addValueChangeHandler(this);
	addClickHandler(this);
	addMouseOverHandler(this);
	addMouseOutHandler(this);
	}

	@Override
	public void onValueChange(ValueChangeEvent<Boolean> event) {
	if (event.getValue()) {
	select();
	}
	}

	@Override
	public void onClick(ClickEvent event) {
	select();
	}

	void select() {
	group.select(this);
	in.label(group.label, value);
	}

	@Override
	public void onMouseOver(MouseOverEvent event) {
	labelsTable.setText(group.row, labelHelpColumn, text);
	}

	@Override
	public void onMouseOut(MouseOutEvent event) {
	LabelRadioButton b = group.selected;
	String s = b != null ? b.text : "";
	labelsTable.setText(group.row, labelHelpColumn, s);
	}
	}
	}