Microdrag

Microdrag is a base library for creating draggable interactions.

NOTE: Microdrag is work in progress. The API will change and bugs are expected.

Features:

• Lightweight core with a plugin system ensures no unnecessary processing while dragging
• Custom frame of reference (i.e. viewport, document.body or any container can be the frame of reference)
• Dragging in a scrollable container (mousewheel while dragging and scrolling the container when dragging the element towards a boundary)
• Multi-touch drag of multiple items at once
• Allows to filter dragged element position to modify or restrict its movement

Built-in plugins:

• Containment plugin allows to restrict the movement of the dragged item
• Snap plugin makes the dragged item snap to edges
• Ref Frame Scroll plugin enables scrolling of the reference frame container when the dragged item approaches its boundary

This is not a drag and drop library, although a drag and drop plugin will be implemented at some point.

NOTE: Currently this library is something I have made only for myself. Lack of documentation is purposeful, it's not really meant for public use at this point and the API will change a lot.