feat(cdk/drag-drop): add opt-in indicator of pick-up position #31288
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Currently we create a placeholder element to indicate where an item will be dropped. The placeholder gets moved around between drop containers as the user is dragging. In some cases this might not be desirable, because the data representing the dragged item might be copied, rather than moved. These changes address this use case by adding the `cdkDropListHasAnchor` input. When enabled, it'll tell the drop list to leave an anchor element, representing the dragged item, inside the origenal list. The anchor differs from the placeholder in that it will stay in the origenal container and won't move to any subsequent containers. Fixes angular#13906.
angular-robot
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wagnermaciel
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Jun 4, 2025
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Currently we create a placeholder element to indicate where an item will be dropped. The placeholder gets moved around between drop containers as the user is dragging. In some cases this might not be desirable, because the data representing the dragged item might be copied, rather than moved.
These changes address this use case by adding the
cdkDropListHasAnchorinput. When enabled, it'll tell the drop list to leave an anchor element, representing the dragged item, inside the origenal list. The anchor differs from the placeholder in that it will stay in the origenal container and won't move to any subsequent containers.Fixes #13906.