public ComboBox(String cssSuffix) {
cellList =
new CellList<String>(
new TextCell() {
@Override
public void render(Context context, String data, SafeHtmlBuilder sb) {
String cssName =
(context.getIndex() % 2 > 0)
? "combobox-item combobox-item-odd"
: "combobox-item";
if (data.equals(currentValue.getText())) cssName += " combobox-item-selected";
sb.append(TEMPLATE.item(cssName, data));
}
});
final SingleSelectionModel<String> selectionModel = new SingleSelectionModel<String>();
cellList.setSelectionModel(selectionModel);
selectionModel.addSelectionChangeHandler(
new SelectionChangeEvent.Handler() {
public void onSelectionChange(SelectionChangeEvent event) {
String selectedValue = selectionModel.getSelectedObject();
currentValue.setHTML(selectedValue);
popup.hide();
onSelection(selectedValue);
}
});
final String panelId = "popup_" + HTMLPanel.createUniqueId();
popup =
new PopupPanel(true, true) {
@Override
protected void onPreviewNativeEvent(Event.NativePreviewEvent event) {
if (Event.ONKEYUP == event.getTypeInt()) {
if (event.getNativeEvent().getKeyCode() == ESCAPE) {
// Dismiss when escape is pressed
popup.hide();
}
}
}
public void onBrowserEvent(Event event) {
super.onBrowserEvent(event);
}
};
popup.getElement().setId(panelId);
popup.setStyleName("default-popup");
popup.setWidget(cellList);
currentValue = new HTML(" ");
currentValue.setStyleName("combobox-value" + cssSuffix);
header = new HorizontalPanel();
header.setStyleName("combobox" + cssSuffix);
header.add(currentValue);
Image img = new Image(Icons.INSTANCE.comboPicker());
header.add(img);
currentValue.getElement().getParentElement().setAttribute("width", "100%");
img.getParent().getElement().setAttribute("width", "18");
header.getElement().setAttribute("width", "100%");
header.getElement().setAttribute("cellspacing", "0");
header.getElement().setAttribute("cellpadding", "0");
header.getElement().setAttribute("border", "0");
ClickHandler clickHandler =
new ClickHandler() {
@Override
public void onClick(ClickEvent clickEvent) {
openPanel();
}
};
currentValue.addClickHandler(clickHandler);
img.addClickHandler(clickHandler);
}
/**
* Create and return a SelectedItem populated with the option
*
* @param option - an Option bean that will be down cast to a FancyOption
* @return the SelectedItem to be pushed
*/
protected SelectedItem createSelectedItem(Option option) {
return new FancySelectedItem(HTMLPanel.createUniqueId(), (FancyOption) option);
}
public Widget asWidget() {
if (null == cellTable.getSelectionModel())
cellTable.setSelectionModel(new SingleSelectionModel<T>());
cellTable
.getSelectionModel()
.addSelectionChangeHandler(
new SelectionChangeEvent.Handler() {
@Override
public void onSelectionChange(SelectionChangeEvent selectionChangeEvent) {
T selection =
((SingleSelectionModel<T>) cellTable.getSelectionModel()).getSelectedObject();
String displayValue = renderer.render(selection);
currentDisplayedValue.setText(displayValue);
}
});
final String panelId = "popup_" + HTMLPanel.createUniqueId();
popup =
new PopupPanel(true, true) {
@Override
protected void onPreviewNativeEvent(Event.NativePreviewEvent event) {
if (Event.ONKEYUP == event.getTypeInt()) {
if (event.getNativeEvent().getKeyCode() == ESCAPE) {
// Dismiss when escape is pressed
popup.hide();
}
}
}
public void onBrowserEvent(Event event) {
super.onBrowserEvent(event);
}
};
popup.getElement().setId(panelId);
popup.setStyleName("default-popup");
/*popup.addCloseHandler(new CloseHandler<PopupPanel>() {
public void onClose(CloseEvent<PopupPanel> event) {
}
});*/
VerticalPanel layout = new VerticalPanel();
layout.setStyleName("fill-layout-width");
layout.addStyleName("tablepicker-popup");
if (description != null) layout.add(new Label(description));
layout.add(cellTable);
DefaultPager pager = new DefaultPager();
pager.setDisplay(cellTable);
layout.add(pager);
popup.setWidget(layout);
currentDisplayedValue = new HTML(" ");
currentDisplayedValue.setStyleName("table-picker-value");
header = new HorizontalPanel();
header.setStyleName("table-picker");
header.add(currentDisplayedValue);
Image img = new Image(ConsoleIcons.INSTANCE.tablePicker());
header.add(img);
currentDisplayedValue.getElement().getParentElement().setAttribute("width", "100%");
img.getParent().getElement().setAttribute("width", "18");
header.getElement().setAttribute("width", "100%");
header.getElement().setAttribute("cellspacing", "0");
header.getElement().setAttribute("cellpadding", "0");
header.getElement().setAttribute("border", "0");
ClickHandler clickHandler =
new ClickHandler() {
@Override
public void onClick(ClickEvent clickEvent) {
openPanel();
}
};
currentDisplayedValue.addClickHandler(clickHandler);
img.addClickHandler(clickHandler);
return header;
}