[dijit] _Widget .destroy() enhancement

[dante]

It would be nice if you could somehow optionally _not_ delete the srcNodeRef/domNode used by dijit._Widget when calling destroy()

my use case is behavioral widgets you can enable/disable and cleanup effectively, without destroying the content.

eg: var n = new dojox.widget.FishseyeLite?({},"foo"); setTimeout(dojo.hitch(n,"destroy"),10000);

it should fisheye for 10 seconds, and leave the node id="foo" alone (other than having it's this.connect()'s removed, etc)

[bill]

Agreed. destroyRendering() should probably only remove generated DOM nodes, not the original srcNodeRef. Perhaps just checking if this.domNode == this.srcNodeRef (and remove this.domNode only if the condition is false) is enough...

[dante]

see #6668 - it's more precise.