We have released version 4.5.1 of MindFusion JavaScript Diagram library. It contains the following new features and improvements:

Node constraints
The DiagramNode.constraints property lets you apply size and direction constraints to a node. It returns a NodeConstraints object with following properties:

• keepRatio: a bool value indicating whether the initial width/height ratio of a node should be preserved.
• maxHeight: the maximum node height allowed.
• maxWidth: the maximum node width allowed.
• minHeight: the minimum node height allowed.
• minWidth: the minimum node width allowed.
• moveDirection: a member of the DirectionConstraint enumeration. Set it to Horizontal or Vertical to let users move a node only in specified direction.

These constraints are considered when a user modifies the node interactively. They are ignored if node placement is changed programmatically by using API methods and properties.

Miscellaneous

• TabbedDiagramView now keeps separate zoom level and scroll position per tab.
• TabbedDiagramView.find method returns view instance by DOM id.
• shapeLibraryLoaded event raised when library XML file is loaded and its shape definitions are available for use.
• fixed undo / redo of text in-place edit operations.
• fix for item hover events of DiagramDocument not raised by TabbedDiagramView.

Distribution for the latest version can be downloaded here, or from the clients area on our site:
https://mindfusion.eu/JsDiagram.zip

Updated scripts are also available as @mindfusion/diagramming NPM package.

Enjoy!