src/client/views/CollectionMulticolumnView.tsx


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import { observer } from 'mobx-react';
import { makeInterface } from '../../new_fields/Schema';
import { documentSchema } from '../../new_fields/documentSchemas';
import { CollectionSubView } from './collections/CollectionSubView';
import { DragManager } from '../util/DragManager';

type MulticolumnDocument = makeInterface<[typeof documentSchema]>;
const MulticolumnDocument = makeInterface(documentSchema);

@observer
export default class CollectionMulticolumnView extends CollectionSubView(MulticolumnDocument) {

    private _dropDisposer?: DragManager.DragDropDisposer;
    protected createDropTarget = (ele: HTMLDivElement) => { //used for stacking and masonry view
        this._dropDisposer && this._dropDisposer();
        if (ele) {
            this._dropDisposer = DragManager.MakeDropTarget(ele, this.drop.bind(this));
        }
    }

    render() {
        return null;
    }

}