1 | import { Cell } from './widget';
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2 | import * as nbformat from '@jupyterlab/nbformat';
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3 | export declare namespace CellDragUtils {
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4 | type ICellTargetArea = 'input' | 'prompt' | 'cell' | 'unknown';
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5 | /**
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6 | * Find the cell index containing the target html element.
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7 | * This function traces up the DOM hierarchy to find the root cell
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8 | * node. Then find the corresponding child and select it.
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9 | *
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10 | * @param node - the cell node or a child of the cell node.
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11 | * @param cells - an iterable of Cells
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12 | * @param isCellNode - a function that takes in a node and checks if
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13 | * it is a cell node.
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14 | *
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15 | * @returns index of the cell we're looking for. Returns -1 if
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16 | * the cell is not founds
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17 | */
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18 | function findCell(node: HTMLElement, cells: Iterable<Cell>, isCellNode: (node: HTMLElement) => boolean): number;
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19 | /**
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20 | * Detect which part of the cell triggered the MouseEvent
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21 | *
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22 | * @param cell - The cell which contains the MouseEvent's target
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23 | * @param target - The DOM node which triggered the MouseEvent
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24 | */
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25 | function detectTargetArea(cell: Cell, target: HTMLElement): ICellTargetArea;
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26 | /**
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27 | * Detect if a drag event should be started. This is down if the
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28 | * mouse is moved beyond a certain distance (DRAG_THRESHOLD).
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29 | *
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30 | * @param prevX - X Coordinate of the mouse pointer during the mousedown event
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31 | * @param prevY - Y Coordinate of the mouse pointer during the mousedown event
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32 | * @param nextX - Current X Coordinate of the mouse pointer
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33 | * @param nextY - Current Y Coordinate of the mouse pointer
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34 | */
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35 | function shouldStartDrag(prevX: number, prevY: number, nextX: number, nextY: number): boolean;
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36 | /**
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37 | * Create an image for the cell(s) to be dragged
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38 | *
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39 | * @param activeCell - The cell from where the drag event is triggered
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40 | * @param selectedCells - The cells to be dragged
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41 | */
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42 | function createCellDragImage(activeCell: Cell, selectedCells: nbformat.ICell[]): HTMLElement;
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43 | }
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