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blockly > IConnectionPreviewer

IConnectionPreviewer interface

Displays visual "previews" of where a block will be connected if it is dropped.

Signature:

export interface IConnectionPreviewer 

Methods

Method

Description

dispose()

Dispose of any references held by this connection previewer.

hidePreview()

Hide any previews that are currently displayed.

previewConnection(draggedConn, staticConn)

Display a connection preview where the draggedCon connects to the staticCon, and no block is being relaced.

previewReplacement(draggedConn, staticConn, replacedBlock)

Display a connection preview where the draggedCon connects to the staticCon, replacing the replacedBlock (currently connected to the staticCon).