mirror of
https://github.com/makeplane/plane
synced 2024-06-14 14:31:34 +00:00
68 lines
2.7 KiB
TypeScript
68 lines
2.7 KiB
TypeScript
import { extractInstruction } from "@atlaskit/pragmatic-drag-and-drop-hitbox/tree-item";
|
|
import { IIssueLabel, IPragmaticPayloadLocation, InstructionType, TDropTarget } from "@plane/types";
|
|
|
|
export type TargetData = {
|
|
id: string;
|
|
parentId: string | null;
|
|
isGroup: boolean;
|
|
isChild: boolean;
|
|
};
|
|
|
|
/**
|
|
* extracts the Payload and translates the instruction for the current dropTarget based on drag and drop payload
|
|
* @param dropTarget dropTarget for which the instruction is required
|
|
* @param source the dragging label data that is being dragged on the dropTarget
|
|
* @param location location includes the data of all the dropTargets the source is being dragged on
|
|
* @returns Instruction for dropTarget
|
|
*/
|
|
export const getInstructionFromPayload = (
|
|
dropTarget: TDropTarget,
|
|
source: TDropTarget,
|
|
location: IPragmaticPayloadLocation
|
|
): InstructionType | undefined => {
|
|
const dropTargetData = dropTarget?.data as TargetData;
|
|
const sourceData = source?.data as TargetData;
|
|
|
|
const allDropTargets = location?.current?.dropTargets;
|
|
|
|
// if all the dropTargets are greater than 1 meaning the source is being dragged on a group and its child at the same time
|
|
// and also if the dropTarget in question is also a group then, it should be a child of the current Droptarget
|
|
if (allDropTargets?.length > 1 && dropTargetData?.isGroup) return "make-child";
|
|
|
|
if (!dropTargetData || !sourceData) return undefined;
|
|
|
|
let instruction = extractInstruction(dropTargetData)?.type;
|
|
|
|
// If the instruction is blocked then set an instruction based on if dropTarget it is a child or not
|
|
if (instruction === "instruction-blocked") {
|
|
instruction = dropTargetData.isChild ? "reorder-above" : "make-child";
|
|
}
|
|
|
|
// if source that is being dragged is a group. A group cannon be a child of any other label,
|
|
// hence if current instruction is to be a child of dropTarget then reorder-above instead
|
|
if (instruction === "make-child" && sourceData.isGroup) instruction = "reorder-above";
|
|
|
|
return instruction;
|
|
};
|
|
|
|
/**
|
|
* This provides a boolean to indicate if the label can be dropped onto the droptarget
|
|
* @param source
|
|
* @param label
|
|
* @param isCurrentChild if the dropTarget is a child
|
|
* @returns
|
|
*/
|
|
export const getCanDrop = (source: TDropTarget, label: IIssueLabel | undefined, isCurrentChild: boolean) => {
|
|
const sourceData = source?.data;
|
|
|
|
if (!sourceData) return false;
|
|
|
|
// a label cannot be dropped on to itself and it's parent cannon be dropped on the child
|
|
if (sourceData.id === label?.id || sourceData.id === label?.parent) return false;
|
|
|
|
// if current dropTarget is a child and the label being dropped is a group then don't enable drop
|
|
if (isCurrentChild && sourceData.isGroup) return false;
|
|
|
|
return true;
|
|
};
|