/*
* Copyright 2000-2014 Vaadin Ltd.
*
* 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.vaadin.client;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.SpanElement;
import com.google.gwt.dom.client.Style;
import com.google.gwt.dom.client.Style.Cursor;
import com.google.gwt.dom.client.Style.Display;
import com.google.gwt.dom.client.Style.TextAlign;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.DoubleClickEvent;
import com.google.gwt.event.dom.client.DoubleClickHandler;
import com.google.gwt.event.dom.client.HasDoubleClickHandlers;
import com.google.gwt.event.shared.HandlerManager;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.ui.ComplexPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;
/**
* @author Vaadin Ltd
*
* @deprecated as of 7.1. This class was mainly used by the old debug console
* but is retained for now for backwards compatibility.
*/
@Deprecated
public class SimpleTree extends ComplexPanel implements HasDoubleClickHandlers {
private Element children = Document.get().createDivElement();
private SpanElement handle = Document.get().createSpanElement();
private SpanElement text = Document.get().createSpanElement();
private HandlerManager textDoubleClickHandlerManager;
public SimpleTree() {
setElement(Document.get().createDivElement());
Style style = getElement().getStyle();
style.setProperty("whiteSpace", "nowrap");
style.setPadding(3, Unit.PX);
style.setPaddingLeft(12, Unit.PX);
// handle styling
style = handle.getStyle();
style.setDisplay(Display.NONE);
style.setTextAlign(TextAlign.CENTER);
style.setWidth(0.5, Unit.EM);
style.setHeight(0.5, Unit.EM);
style.setCursor(Cursor.POINTER);
style.setBackgroundColor("gray");
style.setColor("white");
style.setPadding(4, Unit.PX);
style.setMarginRight(3, Unit.PX);
style.setLineHeight(0.5, Unit.EM);
handle.setInnerHTML("+");
getElement().appendChild(handle);
getElement().appendChild(text);
// children styling
style = children.getStyle();
style.setPaddingLeft(1.5, Unit.EM);
style.setDisplay(Display.NONE);
getElement().appendChild(children);
addDomHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
if (event.getNativeEvent().getEventTarget().cast() == handle) {
if (children.getStyle().getDisplay().intern() == Display.NONE
.getCssName()) {
open(event.getNativeEvent().getAltKey());
} else {
close();
}
} else if (event.getNativeEvent().getEventTarget().cast() == text) {
select(event);
}
}
}, ClickEvent.getType());
}
protected void select(ClickEvent event) {
}
public void close() {
children.getStyle().setDisplay(Display.NONE);
handle.setInnerHTML("+");
}
public void open(boolean recursive) {
handle.setInnerHTML("-");
children.getStyle().setDisplay(Display.BLOCK);
if (recursive) {
for (Widget w : getChildren()) {
if (w instanceof SimpleTree) {
SimpleTree str = (SimpleTree) w;
str.open(true);
}
}
}
}
public boolean isOpen() {
return "-".equals(handle.getInnerHTML());
}
public String getCaption() {
return text.getInnerText();
}
public SimpleTree(String caption) {
this();
setText(caption);
}
public void setText(String text) {
this.text.setInnerText(text);
}
public void addItem(String text) {
Label label = new Label(text);
add(label, children);
}
@Override
public void add(Widget child) {
add(child, children);
}
/**
* {@inheritDoc}
*
* @deprecated As of 7.2, call and override {@link #add(Widget, Element)}
* instead.
*/
@Override
@Deprecated
protected void add(Widget child,
com.google.gwt.user.client.Element container) {
super.add(child, container);
handle.getStyle().setDisplay(Display.INLINE_BLOCK);
getElement().getStyle().setPaddingLeft(3, Unit.PX);
}
/**
* {@inheritDoc}
*
* @since 7.2
*/
@Override
protected void add(Widget child, Element container) {
add(child, DOM.asOld(container));
}
/**
* {@inheritDoc} Events are not fired when double clicking child widgets.
*/
@Override
public HandlerRegistration addDoubleClickHandler(DoubleClickHandler handler) {
if (textDoubleClickHandlerManager == null) {
textDoubleClickHandlerManager = new HandlerManager(this);
addDomHandler(new DoubleClickHandler() {
@Override
public void onDoubleClick(DoubleClickEvent event) {
if (event.getNativeEvent().getEventTarget().cast() == text) {
textDoubleClickHandlerManager.fireEvent(event);
}
}
}, DoubleClickEvent.getType());
}
return textDoubleClickHandlerManager.addHandler(
DoubleClickEvent.getType(), handler);
}
}