2.1のDTタイプパッケージで作業しています。それはstrictNullChecksでコンパイルされず、理由を追跡できませんでした。 (@DragSourceと@DropTargetでコンポーネントを飾ると、レンダリング関数の戻り値の型が何らかの形でElementからElementへ返されますが、私は方法はわかりません)
もう一つの問題は、レンダリングメソッドでコンポーネントを最初にインスタンス化するとき、収集関数によって挿入された小道具は定義されていないので、オプションは束の{undefined as any}
を渡すか、コレクタ注入小道具をオプションとして宣言し、それらに。全体的に型宣言ファイルは悪くないので、ライブラリを知るときに有益だと思っています。
import {
ConnectDragSource,
DragDropContext,
DragSource,
DragSourceSpec,
DragSourceCollector,
DragSourceConnector,
DragSourceMonitor,
DragElementWrapper,
ConnectDropTarget,
DropTarget,
DropTargetConnector,
DropTargetMonitor,
ClientOffset,
DropTargetSpec } from 'react-dnd';
let HTML5Backend = require('react-dnd-html5-backend');
import { AdjacencyMatrixGraph } from "Geometry/Graph";
import * as React from "react";
import * as Sauce from "Sauce";
import * as ReactDOM from "react-dom";
import * as $ from "jquery";
import { Position2 } from "Geometry";
import * as Rx from "rxjs";
import * as Util from "Util";
require("./GraphBuilder.scss");
interface NodeProps {
label?: string;
position: ClientOffset;
}
/* New node from the node well */
export interface NodeSourceProps {
isDragging : boolean;
connectDragSource: ConnectDragSource;
}
export interface NodeSourceState {
}
// Spec: drag events to handle.
let nodeSourceSpec: DragSourceSpec<NodeSourceProps> = {
beginDrag: (props: NodeSourceProps) => ({}),
};
// Collect: Put drag state into props
let nodeSourceCollector = (connect: DragSourceConnector, monitor: DragSourceMonitor) => {
return {
connectDragSource: connect.dragSource(),
isDragging: monitor.isDragging()
}
};
@DragSource("new-node", nodeSourceSpec, nodeSourceCollector)
export class NodeSource extends React.Component<NodeSourceProps, NodeSourceState> {
constructor(props: NodeSourceProps) {
super(props);
}
render() {
const { connectDragSource, isDragging } = this.props;
return connectDragSource(<span className="node-source">{'\u2683'}</span>);
}
}
/* main graph area */
interface GraphCanvasProps {
connectDropTarget: ConnectDropTarget,
isOver: boolean,
graph: AdjacencyMatrixGraph<NodeProps>;
}
interface GraphCanvasState {}
const canvasDropTargetSpecification: DropTargetSpec<GraphCanvasProps> = {
drop(props: GraphCanvasProps, monitor: DropTargetMonitor, component: React.Component<GraphCanvasProps, any>) {
// console.log("Handling drop", print_monitor(monitor));
let pos = monitor.getSourceClientOffset();
if (monitor.getItemType() === "main-node-move") {
let node = (monitor.getItem() as any);
graph.setData(node.id, { position: pos });
}
else if (monitor.getItemType() === "new-node") {
graph.addNode("node-" + graph.order(), { position: pos });
}
},
};
function canvasDropTargetCollectingFunction(connect: DropTargetConnector, monitor: DropTargetMonitor) {
let rv = {
connectDropTarget: connect.dropTarget(),
isOver: monitor.isOver(),
};
return rv;
}
/* ... here's a DropTarget ... */
@DropTarget(["main-node-move", "new-node"], canvasDropTargetSpecification, canvasDropTargetCollectingFunction)
export class GraphCanvas extends React.Component<GraphCanvasProps, GraphCanvasState> {
constructor(props: GraphCanvasProps) {
super(props);
}
render(): JSX.Element | null {
const { connectDropTarget, graph } = this.props;
let nodes = graph.nodes();
let nodeEls = Object.keys(nodes).map(k => {
let node = nodes[k];
return <CanvasNode
key={k}
id={k}
node={node}
graph={graph}
connectNodeDrop={null as any}
connectMoveNodeDragger={(null)}/>
});
return connectDropTarget(<div className="graph-canvas">
{nodeEls}
</div>);
}
}
/* ... Here's a the DragContext decorator ... */
@DragDropContext(HTML5Backend)
class Markov extends React.Component<MarkovProps, MarkovState> {
typescriptです2で使用可能な現在のタイプは(種類@ /反応-DNDと型@ /反応-DND-HTML5-バックエンド)をStrictNullChecksフラグを持ついくつかの問題がオンになっているようです。それを無効にしても、私はまだ他の問題を抱えています。これを無効にすることによっていくつか解決されます... – mastrolindus