Tooltip: gets shifted to the left when placed on element near window borders

[Andreas Seifert]

I had the problem that when I attach a tooltip to an element which is floated to the right of the screen (or put there via text-align), tooltips like to get shifted to the left, even if there is enough space left.

Also, sometimes it's the case that on the first hover over the item, the tooltip is in the proper location but on the following times it's shifted.

[Andreas Seifert]

Occurs on: Windows XP SP3, Firefox 7.0.1

[bill]

You'll need to attach a test case using the "attach file" button. It should be as small as possible to still reproduce the problem, ideally a single HTML file..

[Andreas Seifert]

I created a fiddle, which results in a very similar problem, where the tooltip gets displaced to the right on the second and following hovers (WinXP SP3, FF 7.0.1): ​http://jsfiddle.net/Dpp2J/

[bill]

Thanks for that, I do see that behavior. Very odd.

[bill]

OK, well starting in 1.7 there's a new alignment option of "below-centered" that would look better for tooltips and may work around this problem.

What's happening with your test case is that it starts off aligning the left edge of the tooltip to the left edge of the image (aka anchor node), but the second time it aligns the right edges, because it thinks that aligning the left edges would make the tooltip overflow past the edge of the viewport. This is due to an error in the calculations in Tooltip::orient(), which incorrectly assumes that the connector (the Tooltip's arrow icon) is to the left or right of the Tooltip's content, rather than above or below it as in this case. I'll fix that.

BTW, in the future please attach a test case, so I don't need to reconstruct one by pasting together the various screens from the fiddle.

[bill]

In [26938]:

Fix calculations in Tooltip.orient() for when Tooltip is above/below rather than to the left or the right. It's suspicious though why we need to measure the size of the connector at all, rather than just measuring the size of the whole tooltip.

Fixes #14122 !strict.

[Bill Keese <bill@…>]

In ff4671ee94323a629ecc09d4b6fffdecb2a72fee/dijit:

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