IE9: _onBlur not being called

[Douglas Hays]

Run dijit/tests/form/_autoComplete.html?testWidget=dijit.form.ComboBox on IE9. Click the arrow node to open the dropdown. Click somewhere on whitespace to close the popup. Using 1.6, it won't close. Using 1.7, it works every other time. The focus code is not calling _onBlur. Seems specific to IE9.

[bill]

Looks like this is fixed w/the stopEvent() change from #14410. The reason the ComboBox isn't getting the _onBlur() event is because it's never getting the _onFocus() event. Fixing the ComboBox to get focus on click of the arrow icon fixes that problem.

It actually should be working regardless of the ComboBox gets keyboard focus, because focus.js has code to put widgets in the active stack just by touching them (_onTouchNode() vs _onFocusNode()). But that must somehow be broken on IE9.

[bill]

In [27394]:

Let mousedown event on _HasDropDown button node propagate, to fix a number of errors. Fix on trunk/, refs #14408, #14410, !strict.

[bill]

In [27410]:

Let mousedown event on _HasDropDown button node propagate, to fix a number of errors. Fixes #14408, #14410 on 1.7/ branch, !strict.

[bill]

In [28807]:

fix typo in comment, refs #14408 !strict

[bill]

In [28814]:

Backport [27394] to 1.6 branch, using preventDefault() rather than stopEvent(), fixes #13790, refs #12517, #14408, #14410 !strict.