1 | import React, { Component } from 'react';
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2 | import { DragDropContext, Droppable, Draggable } from 'react-beautiful-dnd';
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3 | import { getClass } from './util';
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4 | import classnames from 'classnames';
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5 | import isEqual from 'lodash.isequal';
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6 |
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7 |
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8 | const reorder = (list, startIndex, endIndex) => {
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9 | const result = Array.from(list);
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10 | const [removed] = result.splice(startIndex, 1);
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11 | result.splice(endIndex, 0, removed);
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12 |
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13 | return result;
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14 | };
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15 |
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16 | class Vertical extends Component {
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17 | constructor(props) {
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18 | super(props);
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19 | this.state = {
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20 | items: this.props.list||[],
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21 | };
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22 | }
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23 | componentWillReceiveProps(nextProps){
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24 | if(!isEqual(this.state.items,nextProps.list)){
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25 | this.setState({
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26 | items:nextProps.list
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27 | })
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28 | }
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29 | }
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30 |
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31 | onDragEnd = result => {
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32 | if (!result.destination) {
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33 | return;
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34 | }
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35 | const items = reorder(
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36 | this.state.items,
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37 | result.source.index,
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38 | result.destination.index
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39 | );
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40 |
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41 | this.setState({
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42 | items,
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43 | });
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44 | this.props.onStop(result,items);
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45 | }
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46 |
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47 | onDragStart = result =>{
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48 | this.props.onStart(result,this.state.items);
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49 | }
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50 |
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51 |
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52 | render() {
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53 | const { onStart,onDrag,onStop,onDragUpdate,dropClass,dropOverClass,
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54 | dragClass,dragingClass,showKey,type } = this.props;
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55 |
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56 | return (
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57 | <DragDropContext onDragEnd={this.onDragEnd} onDragStart={this.onDragStart} onDragUpdate={onDragUpdate}>
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58 | <Droppable droppableId="droppable" direction={type}>
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59 | {(provided, snapshot) => (
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60 | <div
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61 | ref={provided.innerRef}
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62 | className={classnames({
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63 | ...getClass(this.props,snapshot.isDraggingOver).drop
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64 | })}
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65 | >
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66 | {this.state.items.map((item, index) => (
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67 | <Draggable key={index} draggableId={`${index}`} index={index}>
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68 | {(provided, snapshot) => (
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69 | <div
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70 | ref={provided.innerRef}
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71 | {...provided.draggableProps}
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72 | {...provided.dragHandleProps}
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73 | className={classnames({
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74 | ...getClass(this.props,snapshot.isDragging).drag
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75 | })}
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76 | style={{...provided.draggableProps.style}}
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77 | >
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78 | {showKey?item[showKey]:item}
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79 | </div>
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80 | )}
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81 | </Draggable>
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82 | ))}
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83 | {provided.placeholder}
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84 | </div>
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85 | )}
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86 | </Droppable>
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87 | </DragDropContext>
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88 | );
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89 | }
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90 | }
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91 |
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92 | export default Vertical; |
\ | No newline at end of file |