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apps/docs/src/content/docs/api/Other/ActionStateManager.md

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+---
+editUrl: false
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+title: "ActionStateManager"
+---
+
+**Internal manager** for temporary state during ongoing user actions.
+Tracks the state of interactive operations like resizing, linking, rotating, and dragging
+until the action completes.
+
+## Remarks
+
+**For application code, use [NgDiagramService.actionState](/docs/api/services/ngdiagramservice/#actionstate) signal instead.**
+This class is exposed primarily for middleware development where you can access it
+via `context.actionStateManager`.
+
+## Example
+
+```typescript
+const middleware: Middleware = {
+  name: 'resize-validator',
+  execute: (context, next, cancel) => {
+    const resizeState = context.actionStateManager.resize;
+    if (resizeState) {
+      console.log('Currently resizing node:', resizeState.nodeId);
+    }
+    next();
+  }
+};
+```
+
+## Accessors
+
+### copyPaste
+
+#### Get Signature
+
+> **get** **copyPaste**(): `undefined` \| `CopyPasteActionState`
+
+Gets the current copy/paste action state.
+
+##### Returns
+
+`undefined` \| `CopyPasteActionState`
+
+The copy/paste state if a copy/paste operation is in progress, undefined otherwise
+
+#### Set Signature
+
+> **set** **copyPaste**(`value`): `void`
+
+Sets the copy/paste action state.
+
+##### Parameters
+
+###### value
+
+The copy/paste state to set, or undefined to clear
+
+`undefined` | `CopyPasteActionState`
+
+##### Returns
+
+`void`
+
+***
+
+### dragging
+
+#### Get Signature
+
+> **get** **dragging**(): `undefined` \| `DraggingActionState`
+
+Gets the current dragging action state.
+
+##### Returns
+
+`undefined` \| `DraggingActionState`
+
+The dragging state if nodes are being dragged, undefined otherwise
+
+#### Set Signature
+
+> **set** **dragging**(`value`): `void`
+
+Sets the dragging action state.
+
+##### Parameters
+
+###### value
+
+The dragging state to set, or undefined to clear
+
+`undefined` | `DraggingActionState`
+
+##### Returns
+
+`void`
+
+***
+
+### highlightGroup
+
+#### Get Signature
+
+> **get** **highlightGroup**(): `undefined` \| `HighlightGroupActionState`
+
+Gets the current highlight group action state.
+
+##### Returns
+
+`undefined` \| `HighlightGroupActionState`
+
+The highlight group state if a group is being highlighted, undefined otherwise
+
+#### Set Signature
+
+> **set** **highlightGroup**(`value`): `void`
+
+Sets the highlight group action state.
+
+##### Parameters
+
+###### value
+
+The highlight group state to set, or undefined to clear
+
+`undefined` | `HighlightGroupActionState`
+
+##### Returns
+
+`void`
+
+***
+
+### linking
+
+#### Get Signature
+
+> **get** **linking**(): `undefined` \| `LinkingActionState`
+
+Gets the current linking action state.
+
+##### Returns
+
+`undefined` \| `LinkingActionState`
+
+The linking state if a link is being created, undefined otherwise
+
+#### Set Signature
+
+> **set** **linking**(`value`): `void`
+
+Sets the linking action state.
+
+##### Parameters
+
+###### value
+
+The linking state to set, or undefined to clear
+
+`undefined` | `LinkingActionState`
+
+##### Returns
+
+`void`
+
+***
+
+### resize
+
+#### Get Signature
+
+> **get** **resize**(): `undefined` \| `ResizeActionState`
+
+Gets the current resize action state.
+
+##### Returns
+
+`undefined` \| `ResizeActionState`
+
+The resize state if a resize is in progress, undefined otherwise
+
+#### Set Signature
+
+> **set** **resize**(`value`): `void`
+
+Sets the resize action state.
+
+##### Parameters
+
+###### value
+
+The resize state to set, or undefined to clear
+
+`undefined` | `ResizeActionState`
+
+##### Returns
+
+`void`
+
+***
+
+### rotation
+
+#### Get Signature
+
+> **get** **rotation**(): `undefined` \| `RotationActionState`
+
+Gets the current rotation action state.
+
+##### Returns
+
+`undefined` \| `RotationActionState`
+
+The rotation state if a rotation is in progress, undefined otherwise
+
+#### Set Signature
+
+> **set** **rotation**(`value`): `void`
+
+Sets the rotation action state.
+
+##### Parameters
+
+###### value
+
+The rotation state to set, or undefined to clear
+
+`undefined` | `RotationActionState`
+
+##### Returns
+
+`void`
+
+## Methods
+
+### clearCopyPaste()
+
+> **clearCopyPaste**(): `void`
+
+Clears the copy/paste action state.
+
+#### Returns
+
+`void`
+
+***
+
+### clearDragging()
+
+> **clearDragging**(): `void`
+
+Clears the dragging action state.
+
+#### Returns
+
+`void`
+
+***
+
+### clearHighlightGroup()
+
+> **clearHighlightGroup**(): `void`
+
+Clears the highlight group action state.
+
+#### Returns
+
+`void`
+
+***
+
+### clearLinking()
+
+> **clearLinking**(): `void`
+
+Clears the linking action state.
+
+#### Returns
+
+`void`
+
+***
+
+### clearResize()
+
+> **clearResize**(): `void`
+
+Clears the resize action state.
+
+#### Returns
+
+`void`
+
+***
+
+### clearRotation()
+
+> **clearRotation**(): `void`
+
+Clears the rotation action state.
+
+#### Returns
+
+`void`
+
+***
+
+### getState()
+
+> **getState**(): `Readonly`\<[`ActionState`](/docs/api/types/actionstate/)\>
+
+Gets the current action state (readonly).
+
+#### Returns
+
+`Readonly`\<[`ActionState`](/docs/api/types/actionstate/)\>
+
+The complete action state object
+
+***
+
+### isDragging()
+
+> **isDragging**(): `boolean`
+
+Checks if a dragging operation is currently in progress.
+
+#### Returns
+
+`boolean`
+
+***
+
+### isLinking()
+
+> **isLinking**(): `boolean`
+
+Checks if a linking operation is currently in progress.
+
+#### Returns
+
+`boolean`
+
+***
+
+### isResizing()
+
+> **isResizing**(): `boolean`
+
+Checks if a resize operation is currently in progress.
+
+#### Returns
+
+`boolean`
+
+***
+
+### isRotating()
+
+> **isRotating**(): `boolean`
+
+Checks if a rotation operation is currently in progress.
+
+#### Returns
+
+`boolean`