Restrict mxgraph cell dragging to the bounds of the canvas width

I am dealing with a situation where there are multiple vertex cells in a graph and I am utilizing the JavaScript library mxGraph. The issue arises when I drag a cell from the edge of the canvas, causing it to extend beyond the canvas boundaries. I am seeking a way to prevent this cell drag from occurring outside of the canvas limits. Is there a specific function available that can restrict the dragging of cells to stay within the canvas boundaries?

I have come across a function named: graph.setCellsMovable(false); However, this function completely disables cell movement, whereas my requirement is to only disable the cell movement if it is dragged outside of the canvas boundary.

Answer №1

If you're looking to automate the resizing of your graph based on mouse proximity to the container edge while dragging, consider trying out the mxgraph.autoExtend property.

Check it out here!

The mxgraph.autoExtend property specifies if the size of the graph should automatically extend when the mouse approaches the container edge during dragging. This feature is only active if the container has scrollbars. By default, it is set to true.

Furthermore, there are other configuration properties related to auto extension, such as this one.

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