FieldVariable "New Variable" option

[Joshua Lowe]

Hi all,

I believe that older versions of Blockly used to have a "New Variable" option within the dropdown list for FieldVariable.

Is there a flag to re-enable this within V11, or, a recommended way to add such an option?

[Beka Westberg]

Hello,

I don't think there's an easy way to reenable this sadly :/ I wasn't able to find the exact commit where it was removed, but variables haven't had this option for at least 8 years. Your best bet would be to create a custom field that's a subtype of `FieldVariable`, and override the `dropdownCreate` method.

I hope that gives you somewhere to start!

--Beka

[feni...@google.com]

Hi Josh,

FYI one of the drivers for removing this option was the addition of types to variables. Adding types and the possibility of having multiple variable types in a single dropdown made it tricky to be clear about what would be created without a complex modal. We switched to having an explicit button for creating variables in the flyout.

I suspect you don't need to worry about that since you're doing python, but it may come up if you have any sort of type hinting.

Cheers,

Rachel

[fu6...@gmail.com]

Hello,

I have successfully added the  "ADD VARIABLE" option to the dropdown menu. Here is my example.
You need to modify several parts of the code.

blockly_compressed.js  
Code 1  
Code 2

Code 3
Code 4

en.js

Code 1

Best Wishes

fu6...

feni...@google.com 在 2024年9月28日 星期六凌晨12:55:24 [UTC+8] 的信中寫道：

[fu6...@gmail.com]

Hi, 

I have also successfully re-enable colour blocks within V11.

Best Wishes

fu6...

fu6...@gmail.com 在 2024年9月29日 星期日下午4:10:46 [UTC+8] 的信中寫道：

[Joshua Lowe]

Thanks all!

I've managed to add the Create Variable option by following the example from Makecode's blockly upgrade project. I'll make sure to credit their work for this one!

https://github.com/microsoft/pxt/pull/9865

[fu6...@gmail.com]

Hi jl...,

Thank you for providing such excellent reference materials. As a result, I was able to resolve a long-standing issue and correct some errors in my sample codes. Unfortunately, I do not have an in-depth understanding of the JavaScript language, so I am not capable of extending the functionality by writing plugins.ortunately, I do not have an in-depth understanding of the JavaScript language, so I am not capable of extending the functionality by writing plugins.

fu6...

jl...@anaconda.com 在 2024年10月1日 星期二晚上8:29:07 [UTC+8] 的信中寫道：