试试这个它肯定会在你的情况下工作!
react-beautiful-dnd multi drag pattern
https://github.com/atlassian/react-beautiful-dnd/tree/master/stories/src/multi-drag
演示:https://react-beautiful-dnd.netlify.app/?path=/story/multi-drag--pattern
import React, { Component } from 'react';
import styled from '@emotion/styled';
import { DragDropContext } from 'react-beautiful-dnd';
import initial from './data';
import Column from './column';
import type { Result as ReorderResult } from './utils';
import { mutliDragAwareReorder, multiSelectTo as multiSelect } from './utils';
import type { DragStart, DropResult, DraggableLocation } from 'react-beautiful-dnd';
import type { Task, Id } from '../types';
import type { Entities } from './types';
const Container = styled.div`
display: flex;
user-select: none;
justify-content: center;
`;
type State = {
entities: Entities,
selectedTaskIds: Id[],
columnFlag: false,
// sad times
draggingTaskId: Id,
};
const getTasks = (entities: Entities, columnId: Id): Task[] =>
entities.columns[columnId].taskIds.map(
(taskId: Id): Task => entities.tasks[taskId],
);
export default class TaskApp extends Component<any, State> {
state: State = {
entities: initial,
selectedTaskIds: [],
draggingTaskId: '',
};
componentDidMount() {
window.addEventListener('click', this.onWindowClick);
window.addEventListener('keydown', this.onWindowKeyDown);
window.addEventListener('touchend', this.onWindowTouchEnd);
}
componentWillUnmount() {
window.removeEventListener('click', this.onWindowClick);
window.removeEventListener('keydown', this.onWindowKeyDown);
window.removeEventListener('touchend', this.onWindowTouchEnd);
}
onDragStart = (start: DragStart) => {
const id: string = start.draggableId;
const selected: Id = this.state.selectedTaskIds.find(
(taskId: Id): boolean => taskId === id,
);
// if dragging an item that is not selected - unselect all items
if (!selected) {
this.unselectAll();
}
this.setState({
draggingTaskId: start.draggableId,
});
};
onDragEnd = (result: DropResult) => {
const destination = result.destination;
const source = result.source;
const draggableId = result.draggableId;
const combine = result.combine;
console.log('combine',combine);
console.log('destination',destination);
console.log('source',source);
console.log('draggableId',draggableId);
// nothing to do
if (!destination || result.reason === 'CANCEL') {
this.setState({
draggingTaskId: '',
});
return;
}
const processed: ReorderResult = mutliDragAwareReorder({
entities: this.state.entities,
selectedTaskIds: this.state.selectedTaskIds,
source,
destination,
});
this.setState({
...processed,
draggingTaskId: null,
});
};
onWindowKeyDown = (event: KeyboardEvent) => {
if (event.defaultPrevented) {
return;
}
if (event.key === 'Escape') {
this.unselectAll();
}
};
onWindowClick = (event: KeyboardEvent) => {
if (event.defaultPrevented) {
return;
}
this.unselectAll();
};
onWindowTouchEnd = (event: TouchEvent) => {
if (event.defaultPrevented) {
return;
}
this.unselectAll();
};
toggleSelection = (taskId: Id) => {
const selectedTaskIds: Id[] = this.state.selectedTaskIds;
const wasSelected: boolean = selectedTaskIds.includes(taskId);
console.log('hwwo',this.state.entities.columns);
console.log('hwwo',this.state.entities.columns.done.taskIds);
// if there is change in entities - update the state
const newTaskIds: Id[] = (() => {
// Task was not previously selected
// now will be the only selected item
if (!wasSelected) {
return [taskId];
}
// Task was part of a selected group
// will now become the only selected item
if (selectedTaskIds.length > 1) {
return [taskId];
}
// task was previously selected but not in a group
// we will now clear the selection
return [];
})();
this.setState({
selectedTaskIds: newTaskIds,
});
};
toggleSelectionInGroup = (taskId: Id) => {
const selectedTaskIds: Id[] = this.state.selectedTaskIds;
const index: number = selectedTaskIds.indexOf(taskId);
// if not selected - add it to the selected items
if (index === -1) {
this.setState({
selectedTaskIds: [...selectedTaskIds, taskId],
});
return;
}
// it was previously selected and now needs to be removed from the group
const shallow: Id[] = [...selectedTaskIds];
shallow.splice(index, 1);
this.setState({
selectedTaskIds: shallow,
});
};
// This behaviour matches the MacOSX finder selection
multiSelectTo = (newTaskId: Id) => {
const updated: string[] | null | undefined = multiSelect(
this.state.entities,
this.state.selectedTaskIds,
newTaskId,
);
if (updated == null) {
return;
}
this.setState({
selectedTaskIds: updated,
});
};
unselect = () => {
this.unselectAll();
};
unselectAll = () => {
this.setState({
selectedTaskIds: [],
});
};
render() {
const entities = this.state.entities;
const selected = this.state.selectedTaskIds;
console.log('entities', entities);
console.log('selected', selected);
return (
<DragDropContext
onDragStart={this.onDragStart}
onDragEnd={this.onDragEnd}
>
<Container>
{entities.columnOrder.map((columnId: Id) => (
<Column
column={entities.columns[columnId]}
tasks={getTasks(entities, columnId)}
selectedTaskIds={selected}
key={columnId}
draggingTaskId={this.state.draggingTaskId}
toggleSelection={this.toggleSelection}
toggleSelectionInGroup={this.toggleSelectionInGroup}
multiSelectTo={this.multiSelectTo}
entities={entities}
/>
))}
</Container>
</DragDropContext>
);
}
}