/*
* Copyright (c) 2010 Zhihua (Dennis) Jiang
*
* 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.gwtmobile.ui.client.widgets;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.dom.client.Element;
import com.google.gwt.user.client.ui.Widget;
import com.gwtmobile.ui.client.utils.Utils;
public class AccordionStack extends PanelBase {
private AccordionHeader _header;
private AccordionContent _content;
@Override
public void onInitialLoad() {
if (this.getStyleName().indexOf("Expand") == -1) {
close();
}
}
@Override
public void add(Widget w) {
if (_header == null) {
_header = (AccordionHeader) w;
}
else if (_content != null) {
assert false : "Can only contain a header and a content.";
}
else {
_content = (AccordionContent) w;
}
_panel.add(w);
}
public void close() {
this.addStyleName("Collapse");
this.removeStyleName("Expand");
Element focus = Utils.getActiveElement();
focus.blur();
Scheduler.get().scheduleDeferred(new ScheduledCommand() {
@Override
public void execute() {
_content.setHeight("0px");
}
});
}
public void expand() {
if (isExpended()) {
return;
}
this.addStyleName("Expand");
this.removeStyleName("Collapse");
Scheduler.get().scheduleDeferred(new ScheduledCommand() {
@Override
public void execute() {
Utils.Console(_content.getElement().getScrollHeight() - _content.getElement().getOffsetHeight() + "px");
_content.setHeight(_content.getElement().getScrollHeight() - _content.getElement().getOffsetHeight()+ "px");
}
});
}
public void toggle() {
if (!isExpended()) {
expand();
}
else {
close();
}
}
public boolean isExpended() {
return this.getStyleName().indexOf("Expand") > -1;
}
public AccordionHeader getHeader() {
return _header;
}
public AccordionContent getContent() {
return _content;
}
}