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Hierarchies

In this example, we will show you how to use the CreativeEditor SDK's CreativeEngine to modify the hierarchy of blocks through the block API.

Setup#

This example uses the headless CreativeEngine. See the Setup article for a detailed guide. To get started right away, you can also access the block API within a running CE.SDK instance via cesdk.engine.block. Check out the APIs Overview to see that illustrated in more detail.

Manipulate the hierarchy of blocks#

Only blocks that are direct or indirect children of a page block are rendered. Scenes without any page child may not be properly displayed by the CE.SDK editor.

getParent(id: DesignBlockId): DesignBlockId | null

Query a block's parent.

  • id: The block to query.
  • Returns The parent's handle or null if the block has no parent.
getChildren(id: DesignBlockId): DesignBlockId[]

Get all children of the given block. Children are sorted in their rendering order: Last child is rendered in front of other children.

  • id: The block to query.
  • Returns A list of block ids.
insertChild(parent: DesignBlockId, child: DesignBlockId, index: number): void

Insert a new or existing child at a certain position in the parent's children.

  • parent: The block whose children should be updated.
  • child: The child to insert. Can be an existing child of parent.
  • index: The index to insert or move to.
appendChild(parent: DesignBlockId, child: DesignBlockId): void

Appends a new or existing child to a block's children.

  • parent: The block whose children should be updated.
  • child: The child to insert. Can be an existing child of parent.

When adding a block to a new parent, it is automatically removed from its previous parent.