dojox/mobile/scrollable race condition for flashScrollBar called from init

[ben hockey]

in init for dojox/mobile/scrollable, there is a timeout of 600ms to call flashScrollBar. if the widget happens to be destroyed before this timeout, there will be an error when getDim (called by flashScrollBar) tries to get the offsetHeight of the non-existant domNode.

see ​http://jsfiddle.net/neonstalwart/vAfK4/ for an example. clicking on the list destroys the list and rebuilds it. if you click twice (within 600ms) you'll see the error in the console.

[ykami]

Thank you for the report. I believe just checking this.domNode in flashScrollBar() should be fine. I'll back-port this to 1.7 as well since the fix is only one line and 100% safe.

[ykami]

In [27370]:

Fixes #14277, #14435 !strict Checks this.domNode in flashScrollBar(). It may not be available if the widget is destroyed immediately after its creation.

[ykami]

In [27369]:

Fixes #14277, #14435 !strict Checks this.domNode in flashScrollBar(). It may not be available if the widget is destroyed immediately after its creation.