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fix(cdk/drag-drop): optionally inject parent drag in preview and placeholder #28750

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merged 1 commit into from
Mar 20, 2024
Merged

fix(cdk/drag-drop): optionally inject parent drag in preview and placeholder #28750

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6 changes: 3 additions & 3 deletions src/cdk/drag-drop/directives/drag-placeholder.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -26,16 +26,16 @@ export const CDK_DRAG_PLACEHOLDER = new InjectionToken<CdkDragPlaceholder>('CdkD
providers: [{provide: CDK_DRAG_PLACEHOLDER, useExisting: CdkDragPlaceholder}],
})
export class CdkDragPlaceholder<T = any> implements OnDestroy {
private _drag = inject(CDK_DRAG_PARENT);
private _drag = inject(CDK_DRAG_PARENT, {optional: true});

/** Context data to be added to the placeholder template instance. */
@Input() data: T;

constructor(public templateRef: TemplateRef<T>) {
this._drag._setPlaceholderTemplate(this);
this._drag?._setPlaceholderTemplate(this);
}

ngOnDestroy(): void {
this._drag._resetPlaceholderTemplate(this);
this._drag?._resetPlaceholderTemplate(this);
}
}
6 changes: 3 additions & 3 deletions src/cdk/drag-drop/directives/drag-preview.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,7 @@ export const CDK_DRAG_PREVIEW = new InjectionToken<CdkDragPreview>('CdkDragPrevi
providers: [{provide: CDK_DRAG_PREVIEW, useExisting: CdkDragPreview}],
})
export class CdkDragPreview<T = any> implements OnDestroy {
private _drag = inject(CDK_DRAG_PARENT);
private _drag = inject(CDK_DRAG_PARENT, {optional: true});

/** Context data to be added to the preview template instance. */
@Input() data: T;
Expand All @@ -43,10 +43,10 @@ export class CdkDragPreview<T = any> implements OnDestroy {
@Input({transform: booleanAttribute}) matchSize: boolean = false;

constructor(public templateRef: TemplateRef<T>) {
this._drag._setPreviewTemplate(this);
this._drag?._setPreviewTemplate(this);
}

ngOnDestroy(): void {
this._drag._resetPreviewTemplate(this);
this._drag?._resetPreviewTemplate(this);
}
}
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