Input

Selector: [fNodeInput]

The FNodeOutputDirective is a directive that marks an element as an input within a fNode. It manages input-specific behaviours, such as allowing multiple connections, handling disabled state, and determining connectability.

Inputs

• fInputId: InputSignal<string>; The unique identifier for the directive instance. Automatically generated. Default: f-node-input-${uniqueId++}

• fInputMultiple: InputSignal<boolean> Controls how many connections can be attached to this input connector when using the library’s create or reassign connection features. When true, the input can accept multiple simultaneous incoming connections. When false, the built-in logic will only allow one connection at a time — attempting to add another will either replace or block the existing one, depending on the configured behavior. Default: true

• fInputDisabled: InputSignal<boolean> When true, the input connector is disabled: it cannot accept new incoming connections and is treated as a non-interactive drop target. The UI may render it in a disabled style to reflect its state. Default: false

• fInputConnectableSide: InputSignal<EFConnectableSide>; Defines from which side a connection line will enter the input connector (fNodeInput) within a node. This setting controls the exact point on the connector where the connection line attaches, not the node as a whole. Default: EFConnectableSide.AUTO

Styles

• .f-component A general class applied to all F components for shared styling.

• .f-node-input Specific class for styling the node input element.

• .f-node-input-disabled Applied when the input is disabled.

• .f-node-input-multiple Applied when the input allows multiple connections.

• .f-node-input-not-connectable Applied when the input is not connectable.

• .f-node-input-connected Applied when the input is connected, indicating an active connection.

Usage

You can also add fNodeInput directive to the element containing the fNode directive

Examples

Node with connectors

This example shows how to use the fNodeOutput directive to create a node with an output element that can be connected to an input.

Different Connectable Side

Example of how to use the fOutputConnectableSide and fInputConnectableSide directives to specify the side of the node that can be connected to. Valid values are top, right, bottom, left, and auto from EFConnectableSide enum.