Tooltip targeting parent calculates position incorrectly

[Sunlis]

Description

Omitting the target property of a paper-tooltip (causing it to target its parent by default) causes weird size calculations if there isn't enough horizontal space.

It seems like the position calculations are incorrect in this case in updatePosition.

Expected outcome

Tooltip doesn't wrap unless necessary, and doesn't overflow off the page.

Actual outcome

Tooltip wraps unnecessarily. (screenshot)

Live Demo

http://jsbin.com/bayipasaro/1/edit?html,output

Steps to reproduce

1. Position an element near the right edge of the page.
2. Put a paper-tooltip in that element, with position set to top or bottom.
3. Hover on the trigger element, and observe the tooltip.

Browsers Affected

• Chrome
• Firefox
• Safari 9
• Safari 8
• Safari 7
• Edge
• IE 11
• IE 10

[sushantbs]

+1 for the wrapping issue.

@Sunlis Did you try the fitToVisibleBounds property to fix the overflow issue?