TooltipDialog: allow center arrow and the dropdown itself with anchor node

[Chris Mitchell]

Popup overlay code should to be able to position callout arrow to center of target node. In order to closely mimic native UI LaF on mobile devices, popup dialog overlays on tablets/mobile devices will need to be styled so that the callout arrow is pointing at the center of the node the dialog is attached to. Currently digit popup only supports pointing to left/right or top/bottom of target node.

[bill]

Dustin said he would work on this so assigning to him for now. Centering the arrow is specific to the Tooltip code, centering the drop down with the anchor node is in the popup.js code.

[Douglas Hays]

patch file and tests

[Douglas Hays]

(In [24439]) Fixes #12418. Added new orientation specifications TM (top middle), BM (bottom middle), ML (middle left), MR (middle right) to place.js to allow for centered popups (and tooltips). Changed tooltips to be centered vertically by default. Added automated tests to place.html.

[bill]

(In [24501]) show off new middle-alignment for above/below tooltips, refs #12418

[cjolif]

This patch is creating a regression in charting tooltip. Indeed showTooltip used to accepted (in an undocumented manner) a Rectangle (x, y, width, height) instead of a DomNode? for aroundNode parameter. This is not the case anymore cause dojo.position is directly called on the aroundNode. I would suggest even if it was not documented to still support Rectangle because this is very useful for graphics applications (based on Gfx/canvas for example) that do not necessarily have a DomNode? for a drawing.

See also ​http://article.gmane.org/gmane.comp.web.dojo.devel/14498/match=

[Douglas Hays]

(In [24557]) Fixes #12418. Handle previously undocumented feature of showTooltip to take a dijit.Rectangle object instead of a DOM node reference for the aroundNode parameter.

[bill]

After [24439] we are getting a failure on IE6 (at least on my machine) on dijit/tests/_base/place.html:

_AssertFailure: [object Error]: assertEqual() failed: expected 1079 but got 1078 with hint: right aligned with around node

[Douglas Hays]

In [26838]:

Fixes #12418. Tweak place tests to workaround IE6 scrollbar bug and to better test % positioning values.