Shadow Blocks in JSON

[18 Soham Kulkarni]

I am trying to modernize a Blockly app from XML to JSON but shadow blocks are being a painpoint is there any solution here if yes can someone point me to the documentation or code in the comment 

In the old version I cannot find Blockly.VERSION but in my modern version im using the 10.0.0

[Beka Westberg]

Hello,

Can you explain a bit about what the pain point is? If you haven't run across it, the migration guide might be helpful!

Hopefully with a bit more info we can find a solution for you =)

Best wishes,

--Beka

On Fri, Jun 30, 2023 at 6:46 AM 18 Soham Kulkarni <sohamku...@gmail.com> wrote:

I am trying to modernize a Blockly app from XML to JSON but shadow blocks are being a painpoint is there any solution here if yes can someone point me to the documentation or code in the comment 

In the old version I cannot find Blockly.VERSION but in my modern version im using the 10.0.0

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[18 Soham Kulkarni]

Let me look into that migration guide but the pain point was this is my xml toolbox definition and I wanted a clean JSON definition for the same and the documentation wasn't showing anything for the shadow blocks (the placeholder blocks)

    <category name="PWM" colour="120">

      <block type = "set_servo">

        <value name="pwm">

          <shadow type="servo_pwm">

            <field name="pwm">1000</field>

          </shadow>

        </value>

      </block>

    </category>

[Beka Westberg]

Ah yeah, the toolbox docs should be updated to include info about shadow blocks (in XML and in JSON) :/ I'll put that on the list of things to fix!

You can specify shadow blocks by taking adding a `shadow` property to the input struct:

```json

      {
        "type": "text_print",
        "inputs": {
          "TEXT": {
            "shadow": {  // This is the important bit!
              "type": "text",  // The rest is just a normal block definition
              "fields": {
                "TEXT": "abc"
              }
            }
          }
        }
      }

```

I hope that helps! If you have any further questions please reply =)

--Beka

To view this discussion on the web visit https://groups.google.com/d/msgid/blockly/d1c8b26b-5366-441f-9e38-bb45264e6d85n%40googlegroups.com.

[18 Soham Kulkarni]

The `TEXT` in the inputs can be any name i give that input?

[18 Soham Kulkarni]

Hey I tried the convert toolbox to JSON script from the migration guide but i get this error

```Uncaught TypeError: toolbox.getToolboxItems is not a function
    at <anonymous>:19:30

```

What might be the issue?

[Beka Westberg]

Hello again =)

> The `TEXT` in the inputs can be any name I give that input?

Yes, so for your code, the input name would be "pwm" =)

> Hey I tried the convert toolbox to JSON script from the migration guide but I get this error [error message]. What might be the issue?

Are you using a rendered workspace or a headless workspace? The workspace needs to be rendered and the toolbox needs to be fully instantiated before this works! We recommend running the script from your browser console =)

I hope that helps! If you have any further questions please reply =)

--Beka

To view this discussion on the web visit https://groups.google.com/d/msgid/blockly/df7e881f-a7f9-4a9c-8fe3-fefa90641515n%40googlegroups.com.

[18 Soham Kulkarni]

I tried it in the browser console itself but it didnt work but overall the issue is solved :)