path: root/src/client/views/nodes/ImageBox.tsx

import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { Tooltip } from '@mui/material';
import { action, computed, IReactionDisposer, makeObservable, observable, ObservableMap, reaction } from 'mobx';
import { observer } from 'mobx-react';
import { extname } from 'path';
import * as React from 'react';
import { Doc, DocListCast, Opt } from '../../../fields/Doc';
import { DocData } from '../../../fields/DocSymbols';
import { Id } from '../../../fields/FieldSymbols';
import { InkTool } from '../../../fields/InkField';
import { ObjectField } from '../../../fields/ObjectField';
import { Cast, NumCast, StrCast } from '../../../fields/Types';
import { ImageField } from '../../../fields/URLField';
import { TraceMobx } from '../../../fields/util';
import { DashColor, emptyFunction, returnEmptyString, returnFalse, returnOne, returnZero, setupMoveUpEvents, Utils } from '../../../Utils';
import { Docs, DocUtils } from '../../documents/Documents';
import { DocumentType } from '../../documents/DocumentTypes';
import { DocumentManager } from '../../util/DocumentManager';
import { DragManager } from '../../util/DragManager';
import { undoBatch } from '../../util/UndoManager';
import { ContextMenu } from '../../views/ContextMenu';
import { CollectionFreeFormView } from '../collections/collectionFreeForm/CollectionFreeFormView';
import { ContextMenuProps } from '../ContextMenuItem';
import { ViewBoxAnnotatableComponent, ViewBoxAnnotatableProps } from '../DocComponent';
import { MarqueeAnnotator } from '../MarqueeAnnotator';
import { AnchorMenu } from '../pdf/AnchorMenu';
import { StyleProp } from '../StyleProvider';
import { DocFocusOptions, OpenWhere } from './DocumentView';
import { FieldView, FieldViewProps } from './FieldView';
import './ImageBox.scss';
import { PinProps, PresBox } from './trails';

@observer
export class ImageBox extends ViewBoxAnnotatableComponent<ViewBoxAnnotatableProps & FieldViewProps>() {
    public static LayoutString(fieldKey: string) {
        return FieldView.LayoutString(ImageBox, fieldKey);
    }

    @observable public static imageRootDoc: Doc | undefined = undefined;
    @observable public static imageEditorOpen: boolean = false;
    @observable public static imageEditorSource: string = '';
    @observable public static addDoc: ((doc: Doc | Doc[], annotationKey?: string) => boolean) | undefined = undefined;
    @action public static setImageEditorOpen(open: boolean) {
        ImageBox.imageEditorOpen = open;
    }
    @action public static setImageEditorSource(source: string) {
        ImageBox.imageEditorSource = source;
    }
    private _ignoreScroll = false;
    private _forcedScroll = false;
    private _dropDisposer?: DragManager.DragDropDisposer;
    private _disposers: { [name: string]: IReactionDisposer } = {};
    private _getAnchor: (savedAnnotations: Opt<ObservableMap<number, HTMLDivElement[]>>, addAsAnnotation: boolean) => Opt<Doc> = () => undefined;
    private _overlayIconRef = React.createRef<HTMLDivElement>();
    private _marqueeref = React.createRef<MarqueeAnnotator>();
    @observable _curSuffix = '';

    constructor(props: any) {
        super(props);
        makeObservable(this);
        this._props.setContentView?.(this);
    }

    protected createDropTarget = (ele: HTMLDivElement) => {
        this._dropDisposer?.();
        ele && (this._dropDisposer = DragManager.MakeDropTarget(ele, this.drop.bind(this), this.Document));
    };

    getAnchor = (addAsAnnotation: boolean, pinProps?: PinProps) => {
        const visibleAnchor = this._getAnchor?.(this._savedAnnotations, true); // use marquee anchor, otherwise, save zoom/pan as anchor
        const anchor =
            visibleAnchor ??
            Docs.Create.ConfigDocument({
                title: 'ImgAnchor:' + this.Document.title,
                config_panX: NumCast(this.layoutDoc._freeform_panX),
                config_panY: NumCast(this.layoutDoc._freeform_panY),
                config_viewScale: Cast(this.layoutDoc._freeform_scale, 'number', null),
                annotationOn: this.Document,
            });
        if (anchor) {
            if (!addAsAnnotation) anchor.backgroundColor = 'transparent';
            addAsAnnotation && this.addDocument(anchor);
            PresBox.pinDocView(anchor, { pinDocLayout: pinProps?.pinDocLayout, pinData: { ...(pinProps?.pinData ?? {}), pannable: visibleAnchor ? false : true } }, this.Document);
            return anchor;
        }
        return this.Document;
    };

    componentDidMount() {
        this._disposers.sizer = reaction(
            () => ({
                forceFull: this._props.renderDepth < 1 || this.layoutDoc._showFullRes,
                scrSize: (this.ScreenToLocalBoxXf().inverse().transformDirection(this.nativeSize.nativeWidth, this.nativeSize.nativeHeight)[0] / this.nativeSize.nativeWidth) * NumCast(this.layoutDoc._freeform_scale, 1),
                selected: this._props.isSelected(),
            }),
            ({ forceFull, scrSize, selected }) => (this._curSuffix = selected ? '_o' : this.fieldKey === 'icon' ? '_m' : forceFull ? '_o' : scrSize < 0.25 ? '_s' : scrSize < 0.5 ? '_m' : scrSize < 0.8 ? '_l' : '_o'),
            { fireImmediately: true, delay: 1000 }
        );
        const layoutDoc = this.layoutDoc;
        this._disposers.path = reaction(
            () => ({ nativeSize: this.nativeSize, width: NumCast(this.layoutDoc._width) }),
            ({ nativeSize, width }) => {
                if (layoutDoc === this.layoutDoc || !this.layoutDoc._height) {
                    this.layoutDoc._height = (width * nativeSize.nativeHeight) / nativeSize.nativeWidth;
                }
            },
            { fireImmediately: true }
        );
        this._disposers.scroll = reaction(
            () => this.layoutDoc.layout_scrollTop,
            s_top => {
                this._forcedScroll = true;
                !this._ignoreScroll && this._mainCont.current && (this._mainCont.current.scrollTop = NumCast(s_top));
                this._mainCont.current?.scrollTo({ top: NumCast(s_top) });
                this._forcedScroll = false;
            },
            { fireImmediately: true }
        );
    }

    componentWillUnmount() {
        Object.values(this._disposers).forEach(disposer => disposer?.());
    }

    @undoBatch
    drop = (e: Event, de: DragManager.DropEvent) => {
        if (de.complete.docDragData) {
            let added: boolean | undefined = undefined;
            const targetIsBullseye = (ele: HTMLElement): boolean => {
                if (!ele) return false;
                if (ele === this._overlayIconRef.current) return true;
                return targetIsBullseye(ele.parentElement as HTMLElement);
            };
            if (de.metaKey || targetIsBullseye(e.target as HTMLElement)) {
                added = de.complete.docDragData.droppedDocuments.reduce((last: boolean, drop: Doc) => {
                    this.layoutDoc[this.fieldKey + '_usePath'] = 'alternate:hover';
                    return last && Doc.AddDocToList(this.dataDoc, this.fieldKey + '-alternates', drop);
                }, true);
            } else if (de.altKey || !this.dataDoc[this.fieldKey]) {
                const layoutDoc = de.complete.docDragData?.draggedDocuments[0];
                const targetField = Doc.LayoutFieldKey(layoutDoc);
                const targetDoc = layoutDoc[DocData];
                if (targetDoc[targetField] instanceof ImageField) {
                    this.dataDoc[this.fieldKey] = ObjectField.MakeCopy(targetDoc[targetField] as ImageField);
                    Doc.SetNativeWidth(this.dataDoc, Doc.NativeWidth(targetDoc), this.fieldKey);
                    Doc.SetNativeHeight(this.dataDoc, Doc.NativeHeight(targetDoc), this.fieldKey);
                }
            }
            added === false && e.preventDefault();
            added !== undefined && e.stopPropagation();
            return added;
        }
        return false;
    };

    @undoBatch
    resolution = () => (this.layoutDoc._showFullRes = !this.layoutDoc._showFullRes);

    @undoBatch
    setNativeSize = action(() => {
        const scaling = (this.DocumentView?.().screenToViewTransform().Scale || 1) / NumCast(this.layoutDoc._freeform_scale, 1);
        const nscale = NumCast(this._props.PanelWidth()) / scaling;
        const nw = nscale / NumCast(this.dataDoc[this.fieldKey + '_nativeWidth']);
        this.dataDoc[this.fieldKey + '_nativeHeight'] = NumCast(this.dataDoc[this.fieldKey + '_nativeHeight']) * nw;
        this.dataDoc[this.fieldKey + '_nativeWidth'] = NumCast(this.dataDoc[this.fieldKey + '_nativeWidth']) * nw;
        this.layoutDoc._freeform_panX = nw * NumCast(this.layoutDoc._freeform_panX);
        this.layoutDoc._freeform_panY = nw * NumCast(this.layoutDoc._freeform_panY);
        this.dataDoc._freeform_panXMax = this.dataDoc._freeform_panXMax ? nw * NumCast(this.dataDoc._freeform_panXMax) : undefined;
        this.dataDoc._freeform_panXMin = this.dataDoc._freeform_panXMin ? nw * NumCast(this.dataDoc._freeform_panXMin) : undefined;
        this.dataDoc._freeform_panYMax = this.dataDoc._freeform_panYMax ? nw * NumCast(this.dataDoc._freeform_panYMax) : undefined;
        this.dataDoc._freeform_panYMin = this.dataDoc._freeform_panYMin ? nw * NumCast(this.dataDoc._freeform_panYMin) : undefined;
    });
    @undoBatch
    rotate = action(() => {
        const nw = NumCast(this.dataDoc[this.fieldKey + '_nativeWidth']);
        const nh = NumCast(this.dataDoc[this.fieldKey + '_nativeHeight']);
        const w = this.layoutDoc._width;
        const h = this.layoutDoc._height;
        this.dataDoc[this.fieldKey + '-rotation'] = (NumCast(this.dataDoc[this.fieldKey + '-rotation']) + 90) % 360;
        this.dataDoc[this.fieldKey + '_nativeWidth'] = nh;
        this.dataDoc[this.fieldKey + '_nativeHeight'] = nw;
        this.layoutDoc._width = h;
        this.layoutDoc._height = w;
    });

    crop = (region: Doc | undefined, addCrop?: boolean) => {
        if (!region) return;
        const cropping = Doc.MakeCopy(region, true);
        Doc.GetProto(region).lockedPosition = true;
        Doc.GetProto(region).title = 'region:' + this.Document.title;
        Doc.GetProto(region).followLinkToggle = true;
        this.addDocument(region);
        const anchx = NumCast(cropping.x);
        const anchy = NumCast(cropping.y);
        const anchw = NumCast(cropping._width);
        const anchh = NumCast(cropping._height);
        const viewScale = NumCast(this.dataDoc[this.fieldKey + '_nativeWidth']) / anchw;
        cropping.title = 'crop: ' + this.Document.title;
        cropping.x = NumCast(this.Document.x) + NumCast(this.layoutDoc._width);
        cropping.y = NumCast(this.Document.y);
        cropping._width = anchw * (this._props.NativeDimScaling?.() || 1);
        cropping._height = anchh * (this._props.NativeDimScaling?.() || 1);
        cropping.onClick = undefined;
        const croppingProto = Doc.GetProto(cropping);
        croppingProto.annotationOn = undefined;
        croppingProto.isDataDoc = true;
        croppingProto.backgroundColor = undefined;
        croppingProto.proto = Cast(this.Document.proto, Doc, null)?.proto; // set proto of cropping's data doc to be IMAGE_PROTO
        croppingProto.type = DocumentType.IMG;
        croppingProto.layout = ImageBox.LayoutString('data');
        croppingProto.data = ObjectField.MakeCopy(this.dataDoc[this.fieldKey] as ObjectField);
        croppingProto['data_nativeWidth'] = anchw;
        croppingProto['data_nativeHeight'] = anchh;
        croppingProto.freeform_scale = viewScale;
        croppingProto.freeform_scale_min = viewScale;
        croppingProto.freeform_panX = anchx / viewScale;
        croppingProto.freeform_panY = anchy / viewScale;
        croppingProto.freeform_panX_min = anchx / viewScale;
        croppingProto.freeform_panX_max = anchw / viewScale;
        croppingProto.freeform_panY_min = anchy / viewScale;
        croppingProto.freeform_panY_max = anchh / viewScale;
        if (addCrop) {
            DocUtils.MakeLink(region, cropping, { link_relationship: 'cropped image' });
            cropping.x = NumCast(this.Document.x) + NumCast(this.layoutDoc._width);
            cropping.y = NumCast(this.Document.y);
            this._props.addDocTab(cropping, OpenWhere.inParent);
        }
        DocumentManager.Instance.AddViewRenderedCb(cropping, dv => setTimeout(() => (dv.ComponentView as ImageBox).setNativeSize(), 200));
        this._props.bringToFront(cropping);
        return cropping;
    };

    specificContextMenu = (e: React.MouseEvent): void => {
        const field = Cast(this.dataDoc[this.fieldKey], ImageField);
        if (field) {
            const funcs: ContextMenuProps[] = [];
            funcs.push({ description: 'Rotate Clockwise 90', event: this.rotate, icon: 'redo-alt' });
            funcs.push({ description: `Show ${this.layoutDoc._showFullRes ? 'Dynamic Res' : 'Full Res'}`, event: this.resolution, icon: 'expand' });
            funcs.push({ description: 'Set Native Pixel Size', event: this.setNativeSize, icon: 'expand-arrows-alt' });
            funcs.push({ description: 'Copy path', event: () => Utils.CopyText(this.choosePath(field.url)), icon: 'copy' });
            funcs.push({
                description: 'Open Image Editor',
                event: action(() => {
                    ImageBox.setImageEditorOpen(true);
                    ImageBox.setImageEditorSource(this.choosePath(field.url));
                    ImageBox.addDoc = this._props.addDocument;
                    ImageBox.imageRootDoc = this.Document;
                }),
                icon: 'pencil-alt',
            });
            ContextMenu.Instance?.addItem({ description: 'Options...', subitems: funcs, icon: 'asterisk' });
        }
    };

    choosePath(url: URL) {
        if (!url?.href) return '';
        const lower = url.href.toLowerCase();
        if (url.protocol === 'data') return url.href;
        if (url.href.indexOf(window.location.origin) === -1 && url.href.indexOf('dashblobstore') === -1) return Utils.CorsProxy(url.href);
        if (!/\.(png|jpg|jpeg|gif|webp)$/.test(lower)) return `/assets/unknown-file-icon-hi.png`;

        const ext = extname(url.href);
        return url.href.replace(ext, (this._error ? '_o' : this._curSuffix) + ext);
    }
    getScrollHeight = () => (this._props.layout_fitWidth?.(this.Document) !== false && NumCast(this.layoutDoc._freeform_scale, 1) === NumCast(this.dataDoc._freeform_scaleMin, 1) ? this.nativeSize.nativeHeight : undefined);

    @computed get nativeSize() {
        TraceMobx();
        const nativeWidth = NumCast(this.dataDoc[this.fieldKey + '_nativeWidth'], NumCast(this.layoutDoc[this.fieldKey + '_nativeWidth'], 500));
        const nativeHeight = NumCast(this.dataDoc[this.fieldKey + '_nativeHeight'], NumCast(this.layoutDoc[this.fieldKey + '_nativeHeight'], 500));
        const nativeOrientation = NumCast(this.dataDoc[this.fieldKey + '-nativeOrientation'], 1);
        return { nativeWidth, nativeHeight, nativeOrientation };
    }
    @computed get overlayImageIcon() {
        const usePath = this.layoutDoc[`_${this.fieldKey}_usePath`];
        return (
            <Tooltip
                title={
                    <div className="dash-tooltip">
                        toggle between
                        <span style={{ color: usePath === undefined ? 'black' : undefined }}>
                            <em> primary, </em>
                        </span>
                        <span style={{ color: usePath === 'alternate' ? 'black' : undefined }}>
                            <em>alternate, </em>
                        </span>
                        and show
                        <span style={{ color: usePath === 'alternate:hover' ? 'black' : undefined }}>
                            <em> alternate on hover</em>
                        </span>
                    </div>
                }>
                <div
                    className="imageBox-alternateDropTarget"
                    ref={this._overlayIconRef}
                    onPointerDown={e => setupMoveUpEvents(e.target, e, returnFalse, emptyFunction, e => (this.layoutDoc[`_${this.fieldKey}_usePath`] = usePath === undefined ? 'alternate' : usePath === 'alternate' ? 'alternate:hover' : undefined))}
                    style={{
                        display: (this._props.isContentActive() !== false && DragManager.DocDragData?.canEmbed) || DocListCast(this.dataDoc[this.fieldKey + '-alternates']).length ? 'block' : 'none',
                        width: 'min(10%, 25px)',
                        height: 'min(10%, 25px)',
                        background: usePath === undefined ? 'white' : usePath === 'alternate' ? 'black' : 'gray',
                        color: usePath === undefined ? 'black' : 'white',
                    }}>
                    <FontAwesomeIcon icon="turn-up" size="lg" />
                </div>
            </Tooltip>
        );
    }

    @computed get paths() {
        const field = Cast(this.dataDoc[this.fieldKey], ImageField, null); // retrieve the primary image URL that is being rendered from the data doc
        const alts = DocListCast(this.dataDoc[this.fieldKey + '-alternates']); // retrieve alternate documents that may be rendered as alternate images
        const altpaths = alts
            .map(doc => Cast(doc[Doc.LayoutFieldKey(doc)], ImageField, null)?.url)
            .filter(url => url)
            .map(url => this.choosePath(url)); // access the primary layout data of the alternate documents
        const paths = field ? [this.choosePath(field.url), ...altpaths] : altpaths;
        return paths.length ? paths : [Utils.CorsProxy('https://cs.brown.edu/~bcz/noImage.png')];
    }

    @observable _error = '';

    @observable _isHovering = false; // flag to switch between primary and alternate images on hover
    @computed get content() {
        TraceMobx();

        const backColor = DashColor(this._props.styleProvider?.(this.layoutDoc, this._props, StyleProp.BackgroundColor));
        const backAlpha = backColor.red() === 0 && backColor.green() === 0 && backColor.blue() === 0 ? backColor.alpha() : 1;
        const srcpath = this.layoutDoc.hideImage ? '' : this.paths[0];
        const fadepath = this.layoutDoc.hideImage ? '' : this.paths.lastElement();
        const { nativeWidth, nativeHeight, nativeOrientation } = this.nativeSize;
        const rotation = NumCast(this.dataDoc[this.fieldKey + '-rotation']);
        const aspect = rotation % 180 ? nativeHeight / nativeWidth : 1;
        let transformOrigin = 'center center';
        let transform = `translate(0%, 0%) rotate(${rotation}deg) scale(${aspect})`;
        if (rotation === 90 || rotation === -270) {
            transformOrigin = 'top left';
            transform = `translate(100%, 0%) rotate(${rotation}deg) scale(${aspect})`;
        } else if (rotation === 180) {
            transform = `rotate(${rotation}deg) scale(${aspect})`;
        } else if (rotation === 270 || rotation === -90) {
            transformOrigin = 'right top';
            transform = `translate(-100%, 0%) rotate(${rotation}deg) scale(${aspect})`;
        }
        const usePath = this.layoutDoc[`_${this.fieldKey}_usePath`];

        return (
            <div className="imageBox-cont" onPointerEnter={action(() => (this._isHovering = true))} onPointerLeave={action(() => (this._isHovering = false))} key={this.layoutDoc[Id]} ref={this.createDropTarget} onPointerDown={this.marqueeDown}>
                <div className="imageBox-fader" style={{ opacity: backAlpha }}>
                    <img key="paths" src={srcpath} style={{ transform, transformOrigin }} onError={action(e => (this._error = e.toString()))} draggable={false} width={nativeWidth} />
                    {fadepath === srcpath ? null : (
                        <div className={`imageBox-fadeBlocker${(this._isHovering && usePath === 'alternate:hover') || usePath === 'alternate' ? '-hover' : ''}`} style={{ transition: StrCast(this.layoutDoc.viewTransition, 'opacity 1000ms') }}>
                            <img className="imageBox-fadeaway" key="fadeaway" src={fadepath} style={{ transform, transformOrigin }} draggable={false} width={nativeWidth} />
                        </div>
                    )}
                </div>
                {this.overlayImageIcon}
            </div>
        );
    }

    private _mainCont: React.RefObject<HTMLDivElement> = React.createRef();
    private _annotationLayer: React.RefObject<HTMLDivElement> = React.createRef();
    @observable _savedAnnotations = new ObservableMap<number, HTMLDivElement[]>();
    @computed get annotationLayer() {
        TraceMobx();
        return <div className="imageBox-annotationLayer" style={{ height: this._props.PanelHeight() }} ref={this._annotationLayer} />;
    }
    screenToLocalTransform = () => this.ScreenToLocalBoxXf().translate(0, NumCast(this.layoutDoc._layout_scrollTop) * this.ScreenToLocalBoxXf().Scale);
    marqueeDown = (e: React.PointerEvent) => {
        if (!e.altKey && e.button === 0 && NumCast(this.layoutDoc._freeform_scale, 1) <= NumCast(this.dataDoc.freeform_scaleMin, 1) && this._props.isContentActive() && ![InkTool.Highlighter, InkTool.Pen, InkTool.Write].includes(Doc.ActiveTool)) {
            setupMoveUpEvents(
                this,
                e,
                action(e => {
                    MarqueeAnnotator.clearAnnotations(this._savedAnnotations);
                    this._marqueeref.current?.onInitiateSelection([e.clientX, e.clientY]);
                    return true;
                }),
                returnFalse,
                () => MarqueeAnnotator.clearAnnotations(this._savedAnnotations),
                false
            );
        }
    };
    @action
    finishMarquee = () => {
        this._getAnchor = AnchorMenu.Instance?.GetAnchor;
        this._marqueeref.current?.onTerminateSelection();
        this._props.select(false);
    };
    focus = (anchor: Doc, options: DocFocusOptions) => (anchor.type === DocumentType.CONFIG ? undefined : this._ffref.current?.focus(anchor, options));

    _ffref = React.createRef<CollectionFreeFormView>();
    savedAnnotations = () => this._savedAnnotations;
    render() {
        TraceMobx();
        const borderRad = this._props.styleProvider?.(this.layoutDoc, this._props, StyleProp.BorderRounding);
        const borderRadius = borderRad?.includes('px') ? `${Number(borderRad.split('px')[0]) / (this._props.NativeDimScaling?.() || 1)}px` : borderRad;
        return (
            <div
                className="imageBox"
                onContextMenu={this.specificContextMenu}
                ref={this._mainCont}
                onScroll={action(e => {
                    if (!this._forcedScroll) {
                        if (this.layoutDoc._layout_scrollTop || this._mainCont.current?.scrollTop) {
                            this._ignoreScroll = true;
                            this.layoutDoc._layout_scrollTop = this._mainCont.current?.scrollTop;
                            this._ignoreScroll = false;
                        }
                    }
                })}
                style={{
                    width: this._props.PanelWidth() ? undefined : `100%`,
                    height: this._props.PanelWidth() ? undefined : `100%`,
                    pointerEvents: this.layoutDoc._lockedPosition ? 'none' : undefined,
                    borderRadius,
                    overflow: this.layoutDoc.layout_fitWidth || this._props.layout_fitWidth?.(this.Document) ? 'auto' : undefined,
                }}>
                <CollectionFreeFormView
                    ref={this._ffref}
                    {...this._props}
                    setContentView={emptyFunction}
                    NativeWidth={returnZero}
                    NativeHeight={returnZero}
                    renderDepth={this._props.renderDepth + 1}
                    fieldKey={this.annotationKey}
                    styleProvider={this._props.styleProvider}
                    isAnnotationOverlay={true}
                    annotationLayerHostsContent={true}
                    PanelWidth={this._props.PanelWidth}
                    PanelHeight={this._props.PanelHeight}
                    ScreenToLocalTransform={this.screenToLocalTransform}
                    select={emptyFunction}
                    focus={this.focus}
                    getScrollHeight={this.getScrollHeight}
                    NativeDimScaling={returnOne}
                    isAnyChildContentActive={returnFalse}
                    whenChildContentsActiveChanged={this.whenChildContentsActiveChanged}
                    removeDocument={this.removeDocument}
                    moveDocument={this.moveDocument}
                    addDocument={this.addDocument}>
                    {this.content}
                </CollectionFreeFormView>
                {this.annotationLayer}
                {!this._mainCont.current || !this.DocumentView || !this._annotationLayer.current ? null : (
                    <MarqueeAnnotator
                        Document={this.Document}
                        ref={this._marqueeref}
                        scrollTop={0}
                        annotationLayerScrollTop={0}
                        scaling={returnOne}
                        annotationLayerScaling={this._props.NativeDimScaling}
                        docView={this.DocumentView}
                        addDocument={this.addDocument}
                        finishMarquee={this.finishMarquee}
                        savedAnnotations={this.savedAnnotations}
                        selectionText={returnEmptyString}
                        annotationLayer={this._annotationLayer.current}
                        marqueeContainer={this._mainCont.current}
                        highlightDragSrcColor={''}
                        anchorMenuCrop={this.crop}
                    />
                )}
            </div>
        );
    }
}