Dialog: No focus box when focus is on dialog with a title bar

[ptbrunet]

Go to http://archive.dojotoolkit.org/dojo-2007-11-05/dojotoolkit/dijit/tests/test_Dialog.html and activate a dialog with a title bar, e.g. use the "Test slow loading HREF dialog" button. There is no focus box. If the box has no contents this is low priority (because there is no other place to tab to and thus no need to know where focus is), but if the dialog has contents and if #5133 isn't fixed then it's confusing when the focus moves to the dialog box itself; it's like losing focus.

[ptbrunet]

Also see #4025, #4411, #4413.

[becky]

Related to #5133 and relies upon #4413

[becky]

Once #5133 is fixed this will need some further investigation. Is it because the browser doesn't do a good job of showing focus? How do the browsers compare. Yes, it would be good to show focus better but this is lower priority once #51331 is fixed.

[becky]

(In [12144]) fixes #4411, #5134 refs # 5133, #4025. Focus now goes to the first focusable item when a dialog or tooltip dialog is opened. If there is no focusable item, focus remains on the dialog or tooltip dialog container.