// Copyright (C) 2011 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.admin;
import com.google.gerrit.client.ui.AccountGroupSuggestOracle;
import com.google.gerrit.client.ui.RPCSuggestOracle;
import com.google.gerrit.common.data.GroupReference;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gwt.editor.client.LeafValueEditor;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyPressEvent;
import com.google.gwt.event.dom.client.KeyPressHandler;
import com.google.gwt.event.dom.client.KeyUpEvent;
import com.google.gwt.event.dom.client.KeyUpHandler;
import com.google.gwt.event.logical.shared.CloseEvent;
import com.google.gwt.event.logical.shared.CloseHandler;
import com.google.gwt.event.logical.shared.HasCloseHandlers;
import com.google.gwt.event.logical.shared.HasSelectionHandlers;
import com.google.gwt.event.logical.shared.SelectionEvent;
import com.google.gwt.event.logical.shared.SelectionHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Focusable;
import com.google.gwt.user.client.ui.SuggestBox;
import com.google.gwt.user.client.ui.SuggestBox.DefaultSuggestionDisplay;
import com.google.gwt.user.client.ui.SuggestOracle.Suggestion;
import com.google.gwtexpui.globalkey.client.NpTextBox;
public class GroupReferenceBox extends Composite implements
LeafValueEditor<GroupReference>, HasSelectionHandlers<GroupReference>,
HasCloseHandlers<GroupReferenceBox>, Focusable {
private final DefaultSuggestionDisplay suggestions;
private final NpTextBox textBox;
private final AccountGroupSuggestOracle oracle;
private final SuggestBox suggestBox;
private boolean submitOnSelection;
public GroupReferenceBox() {
suggestions = new DefaultSuggestionDisplay();
textBox = new NpTextBox();
oracle = new AccountGroupSuggestOracle();
suggestBox = new SuggestBox( //
new RPCSuggestOracle(oracle), //
textBox, //
suggestions);
initWidget(suggestBox);
textBox.addKeyPressHandler(new KeyPressHandler() {
@Override
public void onKeyPress(KeyPressEvent event) {
submitOnSelection = false;
if (event.getNativeEvent().getKeyCode() == KeyCodes.KEY_ENTER) {
if (suggestions.isSuggestionListShowing()) {
submitOnSelection = true;
} else {
SelectionEvent.fire(GroupReferenceBox.this, getValue());
}
}
}
});
suggestBox.addKeyUpHandler(new KeyUpHandler() {
@Override
public void onKeyUp(KeyUpEvent event) {
if (event.getNativeKeyCode() == KeyCodes.KEY_ESCAPE) {
suggestBox.setText("");
CloseEvent.fire(GroupReferenceBox.this, GroupReferenceBox.this);
}
}
});
suggestBox.addSelectionHandler(new SelectionHandler<Suggestion>() {
@Override
public void onSelection(SelectionEvent<Suggestion> event) {
if (submitOnSelection) {
submitOnSelection = false;
SelectionEvent.fire(GroupReferenceBox.this, getValue());
}
}
});
}
public void setVisibleLength(int len) {
textBox.setVisibleLength(len);
}
@Override
public HandlerRegistration addSelectionHandler(
SelectionHandler<GroupReference> handler) {
return addHandler(handler, SelectionEvent.getType());
}
@Override
public HandlerRegistration addCloseHandler(
CloseHandler<GroupReferenceBox> handler) {
return addHandler(handler, CloseEvent.getType());
}
@Override
public GroupReference getValue() {
String name = suggestBox.getText();
if (name != null && !name.isEmpty()) {
return new GroupReference(oracle.getUUID(name), name);
} else {
return null;
}
}
@Override
public void setValue(GroupReference value) {
suggestBox.setText(value != null ? value.getName() : "");
}
@Override
public int getTabIndex() {
return suggestBox.getTabIndex();
}
@Override
public void setTabIndex(int index) {
suggestBox.setTabIndex(index);
}
public void setFocus(boolean focused) {
suggestBox.setFocus(focused);
}
@Override
public void setAccessKey(char key) {
suggestBox.setAccessKey(key);
}
public void setProject(Project.NameKey projectName) {
oracle.setProject(projectName);
}
}