Re: Correct way to sink events on UiBinder Element

Thomas,

Thanks for the heads up about the leak. How would I use "uibinder for
cells" if I am just creating a standard Composite-based widget?

What would an event delegation path look like at the composite level?
Do I just sink the events on this.getElement() and then check if the
event target is my UiField Element?


On Mon, Aug 19, 2013 at 7:59 AM, Thomas Broyer <t.broyer@gmail.com> wrote:
>
>
> On Thursday, August 15, 2013 9:59:48 PM UTC+2, Shaun Tarves wrote:
>>
>> I am defining several elements via UiBinder. My understanding is these are
>> created as com.google.gwt.dom.client.Element during the createAndBind call.
>>
>> I would like to add a click handler to one of these elements. Is there any
>> way other than casting those to com.google.gwt.dom.client.Element like this?
>>
>>
>> @UiField
>> Element clickable;
>>
>> DOM.sinkEvents((com.google.gwt.user.client.Element) clickable,
>> Event.ONCLICK);
>> DOM.setEventListener((com.google.gwt.user.client.Element) clickable, new
>> EventListener() {
>> public void onBrowserEvent(Event event) {
>> //TODO: Some code
>> }
>> });
>
>
> Don't do that, you might leak memory on some browsers (aka, do it at your
> own risks)
>
> Either use widgets or use the event delegation pattern, where your widget
> listens to events and do one thing or another depending on the event's type
> and target.
> For event delegation, using "uibinder for cells" makes it easier as you can
> use @UiHandler and let the generator do the routing for you.
>
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