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import { action, observable, trace } from 'mobx';
import { observer } from "mobx-react";
import Lightbox from 'react-image-lightbox';
import 'react-image-lightbox/style.css'; // This only needs to be imported once in your app
import { FieldWaiting } from '../../../fields/Field';
import { ImageField } from '../../../fields/ImageField';
import { KeyStore } from '../../../fields/KeyStore';
import { ContextMenu } from "../../views/ContextMenu";
import { FieldView, FieldViewProps } from './FieldView';
import "./ImageBox.scss";
import React = require("react");
import { Utils } from '../../../Utils';
@observer
export class ImageBox extends React.Component<FieldViewProps> {
public static LayoutString() { return FieldView.LayoutString(ImageBox); }
private _ref: React.RefObject<HTMLDivElement>;
private _imgRef: React.RefObject<HTMLImageElement>;
private _downX: number = 0;
private _downY: number = 0;
private _lastTap: number = 0;
@observable private _photoIndex: number = 0;
@observable private _isOpen: boolean = false;
constructor(props: FieldViewProps) {
super(props);
this._ref = React.createRef();
this._imgRef = React.createRef();
this.state = {
photoIndex: 0,
isOpen: false,
};
}
@action
onLoad = (target: any) => {
var h = this._imgRef.current!.naturalHeight;
var w = this._imgRef.current!.naturalWidth;
this.props.Document.SetNumber(KeyStore.NativeHeight, this.props.Document.GetNumber(KeyStore.NativeWidth, 0) * h / w);
}
componentDidMount() {
}
componentWillUnmount() {
}
onPointerDown = (e: React.PointerEvent): void => {
if (Date.now() - this._lastTap < 300) {
if (e.buttons === 1) {
e.stopPropagation();
this._downX = e.clientX;
this._downY = e.clientY;
document.removeEventListener("pointerup", this.onPointerUp);
document.addEventListener("pointerup", this.onPointerUp);
}
} else {
this._lastTap = Date.now();
}
}
@action
onPointerUp = (e: PointerEvent): void => {
document.removeEventListener("pointerup", this.onPointerUp);
if (Math.abs(e.clientX - this._downX) < 2 && Math.abs(e.clientY - this._downY) < 2) {
this._isOpen = true;
}
e.stopPropagation();
}
lightbox = (path: string) => {
const images = [path];
if (this._isOpen) {
return (<Lightbox
mainSrc={images[this._photoIndex]}
nextSrc={images[(this._photoIndex + 1) % images.length]}
prevSrc={images[(this._photoIndex + images.length - 1) % images.length]}
onCloseRequest={action(() =>
this._isOpen = false
)}
onMovePrevRequest={action(() =>
this._photoIndex = (this._photoIndex + images.length - 1) % images.length
)}
onMoveNextRequest={action(() =>
this._photoIndex = (this._photoIndex + 1) % images.length
)}
/>);
}
}
specificContextMenu = (e: React.MouseEvent): void => {
let field = this.props.Document.GetT(this.props.fieldKey, ImageField);
if (field && field !== FieldWaiting) {
let url = field.Data.href;
ContextMenu.Instance.addItem({
description: "Copy path", event: () => {
Utils.CopyText(url);
}
});
}
}
render() {
let field = this.props.Document.Get(this.props.fieldKey);
let path = field === FieldWaiting ? "https://image.flaticon.com/icons/svg/66/66163.svg" :
field instanceof ImageField ? field.Data.href : "http://www.cs.brown.edu/~bcz/face.gif";
let nativeWidth = this.props.Document.GetNumber(KeyStore.NativeWidth, 1);
return (
<div className="imageBox-cont" onPointerDown={this.onPointerDown} ref={this._ref} onContextMenu={this.specificContextMenu}>
<img src={path} width={nativeWidth} alt="Image not found" ref={this._imgRef} onLoad={this.onLoad} />
{this.lightbox(path)}
</div>);
}
}
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