Tooltips do not position correctly on charts after scroll

[zebulonevans]

Steps to reproduce the problem.

1. Put a bar chart or pie chart on a page with a tooltip.
2. Mouse over the chart to show the tooltip.
3. Mouse off the tooltip so it hides
4. Scroll the page down.
5. Mouse over the tooltip again

The tooltip will remain in the original position.

Expected Behavior:

The tooltip should appear lower on the page not in the original position.

This was introduced due to ticket #12392 around line 141 in Tooltip.js when this change occurred:

var lt = dojo.coords(this.chart.node, true);

to

var lt = this.chart.getCoords();

[zebulonevans]

Initial Tooltip Mouseover

[zebulonevans]

Tooltip Mouseover After Scroll

[cjolif]

In [27759]:

refs #2929, #14702, #14526.

• Having lighter charts especially for mobile (inherit _WidgetBase, have SimpleTheme? vs Theme). Also fix some AMD dependencies to minimize them.
• Introduce a parameter to recompute offsets after calling updateData on series
• fix a regression on tooltip position after scroll.

!strict.

[cjolif]

In [27761]:

fixes #14526. In 1.7 branch. !strict.

[cjolif]

#14847 is a duplicate of this ticket.