Turn off mutator

[Alan Smith]

How can I turn off the mutator icon on a block?  

(I have a block that either allows it or disallows it based off of extraState).  

The code seems to say to pass in a null, but I am in typescript and the typescript defintiion doesn't allow passing in null.

Thanks,

Alan

[Mark Friedman]

Hm, it certainly looks from the source code for setMutator that you should be able to pass in null to remove the mutator.

-Mark

--
You received this message because you are subscribed to the Google Groups "Blockly" group.
To unsubscribe from this group and stop receiving emails from it, send an email to blockly+u...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/blockly/049b9dd6-14dd-4222-a090-37d494e03b73n%40googlegroups.com.

[Alan Smith]

The problem is if you have a Blockly.Block, this is how setMutator is defined:

https://github.com/google/blockly/blob/50f390b57b9abeaf79c03d1109bcb7d33a85bae6/core/block.ts#L2384

It also needs the | null

Thanks,

Alan

To view this discussion visit https://groups.google.com/d/msgid/blockly/CAOk7GcRO5g%3DA-1GLE7QQd2Pim%3DNdDs717Q6vpKwB_0rM_7cy0w%40mail.gmail.com.

[Mark Friedman]

I agree, but in the short run you should be able to declare/cast it as a BlockSvg, right?

-Mark

To view this discussion visit https://groups.google.com/d/msgid/blockly/CAEviOug0gVygQwZ2cQg4nHnLKSBvNmXMY4%3DHPm2Wss6SEteHCQ%40mail.gmail.com.

[Mark Friedman]

Or you could use the non-null assertion operator, which should be pretty safe, since you should actually have a BlockSvg object.

-Mark

[Alan Smith]

I can't use the non-null assertion operator, because I am trying to pass in a null for the Mutator.  I think the right answer is probably to cast it as a BlockSvg object instead of Block.

--Alan

To view this discussion visit https://groups.google.com/d/msgid/blockly/CAOk7GcT0iR0u_oYSG3tx-pgu%3DQgPZvLiGwBmdR_F%3DJ9wZfD5YA%40mail.gmail.com.

[Alan Smith]

Is there a place for putting in issues with the blockly library that I should file this?

--Alan

[Mark Friedman]

On Mon, Jan 27, 2025 at 12:30 PM Alan Smith <al...@randomsmiths.com> wrote:

I can't use the non-null assertion operator, because I am trying to pass in a null for the Mutator. 

Ah yes, of course.  That was your whole point!  Sorry about that.  Somehow by the fourth email reply I lost sight of the original goal :-(

I think the right answer is probably to cast it as a BlockSvg object instead of Block.

Indeed.

-Mark

To view this discussion visit https://groups.google.com/d/msgid/blockly/CAEviOugqoWPx1Ejw1LT2ewLTNPXA%2BoTPatv7uygQmgMrLQdwOg%40mail.gmail.com.