blockly > IConnectionPreviewer > previewReplacement
IConnectionPreviewer.previewReplacement() method
Display a connection preview where the draggedCon connects to the staticCon, replacing the replacedBlock (currently connected to the staticCon).
Signature:
previewReplacement(draggedConn: RenderedConnection, staticConn: RenderedConnection, replacedBlock: BlockSvg): void;
Parameters
| Parameter |
Type |
Description |
| draggedConn |
RenderedConnection |
|
| staticConn |
RenderedConnection |
|
| replacedBlock |
BlockSvg |
The block currently connected to the staticCon that is being replaced. |
Returns:
void
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2024-09-18 UTC.
[null,null,["Last updated 2024-09-18 UTC."],[[["The `previewReplacement` method visually displays how a dragged connection would connect to a static connection, replacing an existing block."],["It takes three parameters: the dragged connection, the static connection, and the block being replaced."],["This method is part of the `IConnectionPreviewer` interface and doesn't return any value."]]],["The `previewReplacement` method, part of the `IConnectionPreviewer` interface, shows a connection preview. This preview illustrates how a `draggedConn` would connect to a `staticConn`, effectively replacing a `replacedBlock` that is currently connected to the `staticConn`. The method takes three parameters: `draggedConn` (the connection being dragged), `staticConn` (the stationary connection), and `replacedBlock` (the block being replaced). The method returns void.\n"]]
