Thank you Jens for your hint. I couldn't see any getConsumedEvents() so I
used onBrowserEvent and it working ok.
private class HeaderCell extends AbstractCell<String> {
private String text;
public HeaderCell(String text) {
/*
* Let the parent class know that our cell responds to click
events and
* keydown events.
*/
//super("click", "keydown");
super("mouseover");
this.text=text;
}
@Override
public void onBrowserEvent(Context context, Element parent, String
value,
NativeEvent event, ValueUpdater<String> valueUpdater) {
// Check that the value is not null.
if (value == null) {
return;
}
// Call the super handler, which handlers the enter key.
super.onBrowserEvent(context, parent, value, event, valueUpdater);
if ("mouseover".equals(event.getType())) {
SafeHtmlBuilder sb=new SafeHtmlBuilder();
sb.appendHtmlConstant("<b>");
sb.appendHtmlConstant("<font color=\"blue\">");
sb.appendEscaped(text);
sb.appendHtmlConstant("</font></b>");
meaningMessagesPopup.setWidget(new HTML(sb.toSafeHtml()));
int left = event.getClientX() -140;
int top = event.getClientY() +30;
meaningMessagesPopup.setPopupPosition(left, top);
// Show the popup
meaningMessagesPopup.show();
}
else if ("mouseout".equals(event.getType())) {
meaningMessagesPopup.hide();
}
}
@Override
public void render(Context context, String value, SafeHtmlBuilder
sb) {
/*
* Always do a null check on the value. Cell widgets can pass
null to
* cells if the underlying data contains a null, or if the data
arrives
* out of order.
*/
if (value == null) {
return;
}
sb.appendEscaped(value);
}
}
Then
Header<String> nameColumnHeader = new Header<String>(new HeaderCell("my
Text...")) {
@Override
public String getValue() {
return "Name";
}
};
table.addColumn(nameColumn, nameColumnHeader);
On Friday, June 13, 2014 9:10:40 AM UTC+10, Jens wrote:
>
> ClickableTextCell only listens for click and keydown events so
> Header.onBrowserEvent() will never be called for mouseover events. You must
> create your own Cell class (possibly extending any of GWTs cells) and call
> the super constructor AbstractCell(String... consumedEvents) if possible or
> override AbstractCell.getConsumedEvents().
>
> Also you can use BrowserEvents.MOUSEOVER as a predefined constant.
>
> -- J.
>
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