[Bug] Custom cursor settings get wiped out

[jiacona]

Describe the bug

Map cursor styles get clobbered by terra-draw. If you have a custom cursor style set on the map canvas, whenever setCursor('unset') is called, it removes any custom styles set by terra-draw, but doesn't restore the initial ones.

Terra Draw npm version

Using terra-draw 1.16.1 and terra-draw-maplibre-gl-adapter 1.1.1

To Reproduce

In maplibre, set a custom cursor. Hover over any terra-draw element and then back over the map. The cursor will have reverted to the default pointer.

Expected behavior

Whenever a terra-draw interaction modifies the cursor, it should revert to the previous cursor when it is done instead of deleting any custom styles.

Desktop (please complete the following information):
OS: macOS 15.6.1
Browser: Chrome
Version 140.0.7339.185

Additional context

We are maintaining our own fork and I have implemented a fix for this issue here. I don't know if it is the best approach, but if you have any guidance and think it would be a valuable fix for core, I would be happy to put together a PR.

[JamesLMilner]

Hi @jiacona, thanks for raising this issue. Sorry it's taken me a little while to respond. I can see the issue you are describing and how you're resolving it - let me think on it a little bit and I will get back to you about this.

I also wanted to take the opportunity to say thanks to Blocktype for sponsoring the project - much appreciated.