/*
* Copyright 2011 JBoss Inc
*
* 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 org.jbpm.formbuilder.client.form.editors;
import java.util.HashMap;
import java.util.Map;
import org.jbpm.formapi.client.CommonGlobals;
import org.jbpm.formapi.client.form.FBInplaceEditor;
import org.jbpm.formbuilder.client.bus.UndoableEvent;
import org.jbpm.formbuilder.client.bus.UndoableHandler;
import org.jbpm.formbuilder.client.form.items.LabelFormItem;
import com.google.gwt.event.dom.client.BlurEvent;
import com.google.gwt.event.dom.client.BlurHandler;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.dom.client.FocusEvent;
import com.google.gwt.event.dom.client.FocusHandler;
import com.google.gwt.event.shared.EventBus;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.TextBox;
/**
* Inplace editor for {@link LabelFormItem}
*/
public class LabelInplaceEditor extends FBInplaceEditor {
private final EventBus bus = CommonGlobals.getInstance().getEventBus();
private final TextBox textBox = new TextBox();
private final FocusWrapper wrapper = new FocusWrapper();
public LabelInplaceEditor(final LabelFormItem item) {
final HorizontalPanel editPanel = new HorizontalPanel();
editPanel.setBorderWidth(1);
textBox.setValue(item.getLabel().getText());
textBox.addBlurHandler(new BlurHandler() {
@Override
public void onBlur(BlurEvent event) {
wrapper.setValue(false);
item.reset();
}
});
textBox.addFocusHandler(new FocusHandler() {
@Override
public void onFocus(FocusEvent event) {
wrapper.setValue(true);
}
});
textBox.addChangeHandler(new ChangeHandler() {
@Override
public void onChange(ChangeEvent event) {
Map<String, Object> dataSnapshot = new HashMap<String, Object>();
dataSnapshot.put("item", item);
dataSnapshot.put("oldValue", item.getLabel().getText());
dataSnapshot.put("newValue", textBox.getValue());
bus.fireEvent(new UndoableEvent(dataSnapshot, new UndoableHandler() {
@Override
public void undoAction(UndoableEvent event) {
LabelFormItem myItem = (LabelFormItem) event.getData("item");
String value = (String) event.getData("oldValue");
myItem.getLabel().setText(value);
}
@Override
public void onEvent(UndoableEvent event) { }
@Override
public void doAction(UndoableEvent event) {
LabelFormItem myItem = (LabelFormItem) event.getData("item");
String value = (String) event.getData("newValue");
myItem.getLabel().setText(value);
}
}));
item.reset();
}
});
editPanel.add(textBox);
textBox.setWidth(item.getLabel().getOffsetWidth() + "px");
textBox.setFocus(true);
add(editPanel);
}
@Override
public void focus() {
textBox.setFocus(true);
}
@Override
public boolean isFocused() {
return wrapper.getValue();
}
}