Get list of all blocks in a Google Blockly program

[Spencer Chlebina]

Hey Guys,

I am trying to write a function which will get a list of all the blocks used in a Google Blockly program when the user saves it, and then save this list to MongoDB. I don't need help with MongoDB or anything, but I cannot find the Blockly function which will give me a list of all the blocks used. I've tried getAllBlocks(), which gives me a list of strings which are like pseudo-code and is not parsed into the individual blocks used, and I have tried getTopBlocks(), which just gives me a single string of pseudo-code. I would prefer not to use regex to try to parse the pseudo-code because there would be tons of ways the users could probably make programs which would break my code/lead to faulty data. Does anyone know if there is a function which I can use that will actually give me a list of the individual blocks used? Or, if there is anyone who has had this problem/done this before? I would really appreciate the help!

Thanks,

SC

[Neil Fraser]

getAllBlocks() and getTopBlocks() both return an array of the block
objects, not strings.

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Neil Fraser
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[Spencer Chlebina]

Nevermind, I found a way. I used Blockly.Xml.workspaceToDom() and Blockly.Xml.domToText() to get the text of the XML and then just search for block type="*".

[Neil Fraser]

Note that a search like this can be subverted if someone (maliciously) creates a comment on a block like this one:

The resulting XML would be:

​<xml xmlns="http://www.w3.org/1999/xhtml">
  <block type="logic_negate" id="F$EEr,@FV7)~V$fZ#BJ)" x="163" y="188">
    <comment pinned="true" h="80" w="160">block type="hello"</comment>
  </block>
</xml>

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