clearing or preventing double-click selection

[decitrig]

I'm working on an application that responds to double clicks on text
labels, and I'd like to either disable double-click text selection or
clear it from within the event handler. I tried $doc.selection.clear()
in a native method, but apparently $doc.selection is "not an object" -
it may be that the selection isn't occurring until after the double-
click handler is getting called. I did try stopPropagation and
preventDefault, neither helped.

Any pointers?

--
decitrig

[lineman78]

In your onClick method you can call event.preventDefault() to keep the
browser from handling the event.

[decitrig]

On Sep 13, 3:08 pm, lineman78 <linema...@gmail.com> wrote:
> In your onClick method you can call event.preventDefault() to keep the
> browser from handling the event.

I already tried that in the doubleclick handler, no luck. Just
implemented it in a single-click handler, still no luck.

[Thomas Broyer]

There's a CSS property that you can use to disable text selection:
user-select.
It's available in WebKit (-webkit-user-select) and Firefox (-moz-user-
select). I can't tell for Opera (-o-user-select?).
In IE, you'd have to listen to an onselectionstart event and cancel
it.

[lineman78]

This works for preventing all selection on a widget.

addDomHandler(new MouseDownHandler()
{
@Override
public void onMouseDown(MouseDownEvent event)
{
event.preventDefault();
}
}, MouseDownEvent.getType());

[David Chandler]

This will disable text selection altogether:

protected native static void disableTextSelectInternal(Element e,
boolean disable)
/*-{
if (disable) {
e.ondrag = function () { return false; };
e.onselectstart = function () { return false; };
e.style.MozUserSelect="none"
} else {
e.ondrag = null;
e.onselectstart = null;
e.style.MozUserSelect="text"
}
}-*/;

/dmc
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