Make it possible to target classes of elements

[DevWurm]

Description

The paper-tooltip can only target one element by it's ID or his own parent element. In some cases it may be usefull to target elements by their class, so only one tooltip element is needed for many (possibly dynamically added) elements (e.g. header cells of a grid, list entries).

If the class target is only the fallback resolution for the for property, their is no braking change in the API.

Expected outcome

If no element can be found by the ID specified in the for property the tooltip searches for elements by class with the name specified in for and binds to all of them.

Live Demo

Here you can find a small demo of the feature.