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import { action, observable } 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 { Document } from '../../../fields/Document';
import { FieldWaiting } from '../../../fields/Field';
import { ImageField } from '../../../fields/ImageField';
import { KeyStore } from '../../../fields/KeyStore';
import { ListField } from '../../../fields/ListField';
import { Utils } from '../../../Utils';
import { DragManager } from '../../util/DragManager';
import { undoBatch } from '../../util/UndoManager';
import { ContextMenu } from "../../views/ContextMenu";
import { FieldView, FieldViewProps } from './FieldView';
import "./ImageBox.scss";
import React = require("react");
@observer
export class ImageBox extends React.Component<FieldViewProps> {
public static LayoutString() { return FieldView.LayoutString(ImageBox); }
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;
private dropDisposer?: DragManager.DragDropDisposer;
constructor(props: FieldViewProps) {
super(props);
this._imgRef = React.createRef();
}
@action
onLoad = (target: any) => {
var h = this._imgRef.current!.naturalHeight;
var w = this._imgRef.current!.naturalWidth;
if (this._photoIndex === 0) {
this.props.Document.SetNumber(KeyStore.NativeHeight, this.props.Document.GetNumber(KeyStore.NativeWidth, 0) * h / w);
this.props.Document.SetNumber(KeyStore.Height, this.props.Document.Width() * h / w);
}
}
protected createDropTarget = (ele: HTMLDivElement) => {
if (this.dropDisposer) {
this.dropDisposer();
}
if (ele) {
this.dropDisposer = DragManager.MakeDropTarget(ele, { handlers: { drop: this.drop.bind(this) } });
}
}
onDrop = (e: React.DragEvent) => {
e.stopPropagation();
e.preventDefault();
console.log("IMPLEMENT ME PLEASE");
}
@undoBatch
drop = (e: Event, de: DragManager.DropEvent) => {
if (de.data instanceof DragManager.DocumentDragData) {
de.data.droppedDocuments.map(action((drop: Document) => {
let layout = drop.GetText(KeyStore.BackgroundLayout, "");
if (layout.indexOf(ImageBox.name) !== -1) {
let imgData = this.props.Document.Get(KeyStore.Data);
if (imgData instanceof ImageField && imgData) {
this.props.Document.SetOnPrototype(KeyStore.Data, new ListField([imgData]));
}
let imgList = this.props.Document.GetList(KeyStore.Data, [] as any[]);
if (imgList) {
let field = drop.Get(KeyStore.Data);
if (field === FieldWaiting) { }
else if (field instanceof ImageField) imgList.push(field);
else if (field instanceof ListField) imgList.push(field.Data);
}
e.stopPropagation();
}
}));
// de.data.removeDocument() bcz: need to implement
}
}
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 = (images: string[]) => {
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);
}
});
}
}
@action
onDotDown(index: number) {
this._photoIndex = index;
this.props.Document.SetNumber(KeyStore.CurPage, index);
}
dots(paths: string[]) {
let nativeWidth = this.props.Document.GetNumber(KeyStore.NativeWidth, 1);
let dist = Math.min(nativeWidth / paths.length, 40);
let left = (nativeWidth - paths.length * dist) / 2;
return paths.map((p, i) =>
<div className="imageBox-placer" key={i} >
<div className="imageBox-dot" style={{ background: (i === this._photoIndex ? "black" : "gray"), transform: `translate(${i * dist + left}px, 0px)` }} onPointerDown={(e: React.PointerEvent) => { e.stopPropagation(); this.onDotDown(i); }} />
</div>
);
}
render() {
let field = this.props.Document.Get(this.props.fieldKey);
let paths: string[] = ["http://www.cs.brown.edu/~bcz/face.gif"];
if (field === FieldWaiting) paths = ["https://image.flaticon.com/icons/svg/66/66163.svg"];
else if (field instanceof ImageField) paths = [field.Data.href];
else if (field instanceof ListField) paths = field.Data.filter(val => val as ImageField).map(p => (p as ImageField).Data.href);
let nativeWidth = this.props.Document.GetNumber(KeyStore.NativeWidth, 1);
return (
<div className="imageBox-cont" onPointerDown={this.onPointerDown} onDrop={this.onDrop} ref={this.createDropTarget} onContextMenu={this.specificContextMenu}>
<img src={paths[Math.min(paths.length, this._photoIndex)]} style={{ objectFit: (this._photoIndex === 0 ? undefined : "contain") }} width={nativeWidth} alt="Image not found" ref={this._imgRef} onLoad={this.onLoad} />
{paths.length > 1 ? this.dots(paths) : (null)}
{this.lightbox(paths)}
</div>);
}
}
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