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import { observer } from "mobx-react";
import { NodeCollectionStore } from "../../stores/NodeCollectionStore";
import "./FreeFormCanvas.scss";
import { NodeContainer } from "./NodeContainer";
import React = require("react");
interface IProps {
store: NodeCollectionStore
}
@observer
export class FreeFormCanvas extends React.Component<IProps> {
private _isPointerDown: boolean;
onPointerDown = (e: React.PointerEvent): void => {
e.stopPropagation();
e.preventDefault();
this._isPointerDown = true;
document.removeEventListener("pointermove", this.onPointerMove);
document.addEventListener("pointermove", this.onPointerMove);
document.removeEventListener("pointerup", this.onPointerUp);
document.addEventListener("pointerup", this.onPointerUp);
}
onPointerUp = (e: PointerEvent): void => {
e.stopPropagation();
e.preventDefault();
this._isPointerDown = false;
document.removeEventListener("pointermove", this.onPointerMove);
document.removeEventListener("pointerup", this.onPointerUp);
}
onPointerMove = (e: PointerEvent): void => {
e.stopPropagation();
e.preventDefault();
if (!this._isPointerDown) {
return;
}
this.props.store.X += e.movementX;
this.props.store.Y += e.movementY;
}
render() {
let store = this.props.store;
return (
<div className="freeformcanvas-container" onPointerDown={this.onPointerDown}>
<div className="freeformcanvas" style={{ transform: store.Transform }}>
<NodeContainer store={store} />
</div>
</div>
);
}
}
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