// 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.ui;
import com.google.gerrit.client.Gerrit;
import com.google.gwt.event.logical.shared.CloseHandler;
import com.google.gwt.event.logical.shared.HasCloseHandlers;
import com.google.gwt.event.logical.shared.HasOpenHandlers;
import com.google.gwt.event.logical.shared.OpenHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.ui.ComplexPanel;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.DisclosurePanel;
import com.google.gwt.user.client.ui.Panel;
import com.google.gwt.user.client.ui.Widget;
public class ComplexDisclosurePanel extends Composite implements
HasOpenHandlers<DisclosurePanel>, HasCloseHandlers<DisclosurePanel> {
private final DisclosurePanel main;
private final Panel header;
public ComplexDisclosurePanel(final String text, final boolean isOpen) {
// Ick. GWT's DisclosurePanel won't let us subclass it, or do any
// other modification of its header. We're stuck with injecting
// into the DOM directly.
//
main = new DisclosurePanel(text);
main.setOpen(isOpen);
final Element headerParent;
{
final Element table = main.getElement();
final Element tbody = DOM.getFirstChild(table);
final Element tr1 = DOM.getChild(tbody, 0);
final Element tr2 = DOM.getChild(tbody, 1);
DOM.setElementProperty(DOM.getChild(tr1, 0), "width", "20px");
DOM.setElementPropertyInt(DOM.getChild(tr2, 0), "colSpan", 2);
headerParent = tr1;
}
header = new ComplexPanel() {
{
setElement(DOM.createTD());
DOM.setInnerHTML(getElement(), " ");
addStyleName(Gerrit.RESOURCES.css().complexHeader());
}
@Override
public void add(Widget w) {
add(w, getElement());
}
};
initWidget(new ComplexPanel() {
{
final DisclosurePanel main = ComplexDisclosurePanel.this.main;
setElement(main.getElement());
getChildren().add(main);
adopt(main);
add(ComplexDisclosurePanel.this.header, headerParent);
}
});
}
public Panel getHeader() {
return header;
}
public void setContent(final Widget w) {
main.setContent(w);
}
public Widget getContent() {
return main.getContent();
}
@Override
public HandlerRegistration addOpenHandler(final OpenHandler<DisclosurePanel> h) {
return main.addOpenHandler(h);
}
@Override
public HandlerRegistration addCloseHandler(
final CloseHandler<DisclosurePanel> h) {
return main.addCloseHandler(h);
}
/** @return true if the panel's content is visible. */
public boolean isOpen() {
return main.isOpen();
}
/**
* Changes the visible state of this panel's content.
*
* @param isOpen <code>true</code> to open, <code>false</code> to close
*/
public void setOpen(final boolean isOpen) {
main.setOpen(isOpen);
}
}