Add depth attribute to children-block

[bobbingwide]

I'm trying out different scaffold tools for developing Gutenberg blocks. This plugin ( children-block ) was generated using wp-create-block. https://github.com/WordPress/gutenberg/tree/master/packages/create-block

I now want to extend the block to actually do what I want it to do - display Child content as a list.

The first change, which wasn't done using an issue or PR, was to add ServerSideRendering, using wp_list_pages().

Now I want to start making use of some of the parameters. e.g. depth= which is used to control the levels of descendents displayed.

depth=	Meaning
0	Any depth
1	Children
2	Children and grandchildren
n>2	More descendants
-1	Don't show the nesting

Example depth=0

• Child 1
  • Grandchild 1
• Child 2
  • Grandchild 2
  • Great grandchild 2
    • Great great grandchild 2

Example depth=1

• Child 1
• Child 2

Example depth=2

• Child 1
  • Grandchild 1
• Child 2
  • Grandchild 2

Example depth=3

• Child 1
  • Grandchild 1
• Child 2
  • Grandchild 2
  • Great grandchild 2

Example depth=-1

• Child 1
• Grandchild 1
• Child 2
• Grandchild 2
• Great grandchild 2
• Great great grandchild 2

The test data is being constructed in my local development environment: see s.b/wp54/children-block-versions/

[bobbingwide]

I'm going to close this even though there are no automated tests.