Click on one point on a widget and drag it to another point on another widget, and a connection (wire, cable, line) is made between the two.
I’m looking for a (open source) web toolkit that has this type of widget, but I don’t even know what it is called. So it’s a bit difficult to find. Examples would be nice.
Check out this project: https://github.com/sporritt/jsPlumb.
Here’s the demo in action: http://jsplumb.org/jquery/demo.html