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expose "onMoveNode" method (optional), added "canDragNode" method (optional), center svg icons in control buttons #280

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2 changes: 2 additions & 0 deletions src/components/graph-view-props.js
Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,7 @@ export type IGraphViewProps = {
hoveredNode: INode | null,
swapEdge: IEdge
) => boolean,
canDragNode?: (nodeId: string) => boolean,
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@ajbogh ajbogh Nov 16, 2020

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Change to canMoveNode or canUpdateNode?

onBackgroundClick?: (x: number, y: number, event: any) => void,
onCopySelected?: () => void,
onCreateEdge?: (sourceNode: INode, targetNode: INode) => void,
Expand All @@ -77,6 +78,7 @@ export type IGraphViewProps = {
onSwapEdge?: (sourceNode: INode, targetNode: INode, edge: IEdge) => void,
onUndo?: () => void,
onUpdateNode?: (node: INode) => void,
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@ajbogh ajbogh Nov 16, 2020

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onUpdateNode should already tell you that the node moved. It passes the new X,Y coordinates within the INode type. Is it possible to call onUpdateNode instead of creating a new onMoveNode method?

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I think the problem with this is that onUpdateNode is only called when the move is finished, not while the move is in progress. That is also why one can not just return false from onUpdateNode and thereby prevent movement.

onMoveNode?: (node: INode) => void,
onArrowClicked?: (selectedEdge: IEdge) => void,
renderBackground?: (gridSize?: number) => any,
renderDefs?: () => any,
Expand Down
9 changes: 7 additions & 2 deletions src/components/graph-view.js
Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,7 @@ class GraphView extends React.Component<IGraphViewProps, IGraphViewState> {
canSwapEdge: () => true,
canDeleteEdge: () => true,
canDeleteNode: () => true,
canDragNode: () => true,
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Change to canMoveNode

edgeArrowSize: 8,
gridSpacing: 36,
layoutEngineType: 'None',
Expand Down Expand Up @@ -774,7 +775,7 @@ class GraphView extends React.Component<IGraphViewProps, IGraphViewState> {
}

handleNodeMove = (position: IPoint, nodeId: string, shiftKey: boolean) => {
const { canCreateEdge, readOnly } = this.props;
const { canCreateEdge, readOnly, onMoveNode, canDragNode } = this.props;
const nodeMapNode: INodeMapNode | null = this.getNodeById(nodeId);

if (!nodeMapNode) {
Expand All @@ -783,10 +784,14 @@ class GraphView extends React.Component<IGraphViewProps, IGraphViewState> {

const node = nodeMapNode.node;

if (readOnly) {
if (readOnly || !canDragNode(nodeId)) {
return;
}

if (onMoveNode) {
onMoveNode(node);
}
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This if statement needs to move within the if statement on line 809.


if (!shiftKey && !this.state.draggingEdge) {
// node moved
node.x = position.x;
Expand Down
4 changes: 4 additions & 0 deletions src/styles/main.scss
Original file line number Diff line number Diff line change
Expand Up @@ -158,6 +158,10 @@ $background-color: #f9f9f9;
border-radius: 2px;
cursor: pointer;
margin: 0;

> svg {
vertical-align: sub;
}
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Please rebase on master. This may be fixed.

}
}

Expand Down
6 changes: 4 additions & 2 deletions typings/index.d.ts
Original file line number Diff line number Diff line change
Expand Up @@ -129,7 +129,8 @@ declare module 'react-digraph' {
sourceNode: INode,
hoveredNode: INode | null,
swapEdge: IEdge
) => boolean,
) => boolean;
canDragNode?: (nodeId: string) => boolean;
onBackgroundClick?: (x: number, y: number, event: any) => void,
onCopySelected?: () => void;
onCreateEdge?: (sourceNode: INode, targetNode: INode) => void;
Expand All @@ -139,10 +140,11 @@ declare module 'react-digraph' {
onPasteSelected?: (
selectedNode: INode,
xyCoords?: { x: number, y: number }
) => void,
) => void;
onSelectEdge?: (selectedEdge: IEdge) => void;
onSelectNode?: (node: INode | null, event: any) => void;
onSwapEdge?: (sourceNode: INode, targetNode: INode, edge: IEdge) => void;
onMoveNode?: (node: INode) => void;
onUndo?: () => void;
onUpdateNode?: (node: INode) => void;
renderBackground?: (gridSize?: number) => any;
Expand Down