import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
import { action, computed, IReactionDisposer, observable, ObservableMap, reaction, runInAction } from "mobx";
import { observer } from "mobx-react";
import * as WebRequest from 'web-request';
import { Doc, DocListCast, HeightSym, Opt, WidthSym } from "../../../fields/Doc";
import { documentSchema } from "../../../fields/documentSchemas";
import { Id } from "../../../fields/FieldSymbols";
import { HtmlField } from "../../../fields/HtmlField";
import { InkTool } from "../../../fields/InkField";
import { List } from "../../../fields/List";
import { listSpec, makeInterface } from "../../../fields/Schema";
import { ComputedField } from "../../../fields/ScriptField";
import { Cast, NumCast, StrCast } from "../../../fields/Types";
import { WebField } from "../../../fields/URLField";
import { TraceMobx } from "../../../fields/util";
import { emptyFunction, getWordAtPoint, OmitKeys, returnFalse, returnOne, setupMoveUpEvents, smoothScroll, Utils, returnEmptyString, returnEmptyFilter } from "../../../Utils";
import { Docs } from "../../documents/Documents";
import { DocumentType } from '../../documents/DocumentTypes';
import { CurrentUserUtils } from "../../util/CurrentUserUtils";
import { Scripting } from "../../util/Scripting";
import { SnappingManager } from "../../util/SnappingManager";
import { undoBatch } from "../../util/UndoManager";
import { CollectionFreeFormView } from "../collections/collectionFreeForm/CollectionFreeFormView";
import { ContextMenu } from "../ContextMenu";
import { ContextMenuProps } from "../ContextMenuItem";
import { ViewBoxAnnotatableComponent, ViewBoxAnnotatableProps } from "../DocComponent";
import { DocumentDecorations } from "../DocumentDecorations";
import { LightboxView } from "../LightboxView";
import { MarqueeAnnotator } from "../MarqueeAnnotator";
import { AnchorMenu } from "../pdf/AnchorMenu";
import { Annotation } from "../pdf/Annotation";
import { SidebarAnnos } from "../SidebarAnnos";
import { FieldView, FieldViewProps } from './FieldView';
import { LinkDocPreview } from "./LinkDocPreview";
import "./WebBox.scss";
import React = require("react");
const _global = (window /* browser */ || global /* node */) as any;
const htmlToText = require("html-to-text");

type WebDocument = makeInterface<[typeof documentSchema]>;
const WebDocument = makeInterface(documentSchema);

@observer
export class WebBox extends ViewBoxAnnotatableComponent<ViewBoxAnnotatableProps & FieldViewProps, WebDocument>(WebDocument) {
    public static LayoutString(fieldKey: string) { return FieldView.LayoutString(WebBox, fieldKey); }
    public static openSidebarWidth = 250;
    private _setPreviewCursor: undefined | ((x: number, y: number, drag: boolean, hide: boolean) => void);
    private _mainCont: React.RefObject<HTMLDivElement> = React.createRef();
    private _outerRef: React.RefObject<HTMLDivElement> = React.createRef();
    private _disposers: { [name: string]: IReactionDisposer } = {};
    private _annotationLayer: React.RefObject<HTMLDivElement> = React.createRef();
    private _keyInput = React.createRef<HTMLInputElement>();
    private _initialScroll: Opt<number>;
    private _sidebarRef = React.createRef<SidebarAnnos>();
    @observable private _scrollTimer: any;
    @observable private _overlayAnnoInfo: Opt<Doc>;
    @observable private _marqueeing: number[] | undefined;
    @observable private _isAnnotating = false;
    @observable private _iframeClick: HTMLIFrameElement | undefined = undefined;
    @observable private _iframe: HTMLIFrameElement | null = null;
    @observable private _savedAnnotations = new ObservableMap<number, HTMLDivElement[]>();
    @observable private _scrollHeight = 1500;
    @computed get _url() { return this.webField?.toString() || ""; }
    @computed get _urlHash() { return this._url ? WebBox.urlHash(this._url) + "" : ""; }
    @computed get scrollHeight() { return this._scrollHeight; }
    @computed get allAnnotations() { return DocListCast(this.dataDoc[this.annotationKey]); }
    @computed get inlineTextAnnotations() { return this.allAnnotations.filter(a => a.textInlineAnnotations); }
    @computed get webField() { return Cast(this.dataDoc[this.props.fieldKey], WebField)?.url; }

    constructor(props: any) {
        super(props);
        if (true) {// his.webField) {
            Doc.SetNativeWidth(this.dataDoc, Doc.NativeWidth(this.dataDoc) || 850);
            Doc.SetNativeHeight(this.dataDoc, Doc.NativeHeight(this.dataDoc) || this.Document[HeightSym]() / this.Document[WidthSym]() * 850);
        }
        if (this.layoutDoc[this.fieldKey + "-contentWidth"] === undefined) {
            this.layoutDoc[this.fieldKey + "-contentWidth"] = Doc.NativeWidth(this.layoutDoc);
        }
    }

    async componentDidMount() {
        this.props.setContentView?.(this); // this tells the DocumentView that this AudioBox is the "content" of the document.  this allows the DocumentView to indirectly call getAnchor() on the AudioBox when making a link.

        runInAction(() => {
            this._annotationKeySuffix = () => this._urlHash + "-annotations";
            // bcz: need to make sure that doc.data-annotations points to the currently active web page's annotations (this could/should be when the doc is created)
            this.dataDoc[this.fieldKey + "-annotations"] = ComputedField.MakeFunction(`copyField(this["${this.fieldKey}-"+urlHash(this["${this.fieldKey}"]?.url?.toString())+"-annotations"`);
            this.dataDoc[this.fieldKey + "-sidebar"] = ComputedField.MakeFunction(`copyField(this["${this.fieldKey}-"+urlHash(this["${this.fieldKey}"]?.url?.toString())+"-sidebar"`);
        });

        this._disposers.autoHeight = reaction(() => this.layoutDoc._autoHeight,
            autoHeight => {
                if (autoHeight) {
                    this.layoutDoc._nativeHeight = NumCast(this.props.Document[this.props.fieldKey + "-nativeHeight"]);
                    this.props.setHeight(NumCast(this.props.Document[this.props.fieldKey + "-nativeHeight"]) * (this.props.scaling?.() || 1));
                }
            });

        if (this.webField?.href.indexOf("youtube") !== -1) {
            const youtubeaspect = 400 / 315;
            const nativeWidth = Doc.NativeWidth(this.layoutDoc);
            const nativeHeight = Doc.NativeHeight(this.layoutDoc);
            if (this.webField) {
                if (!nativeWidth || !nativeHeight || Math.abs(nativeWidth / nativeHeight - youtubeaspect) > 0.05) {
                    if (!nativeWidth) Doc.SetNativeWidth(this.layoutDoc, 600);
                    Doc.SetNativeHeight(this.layoutDoc, (nativeWidth || 600) / youtubeaspect);
                    this.layoutDoc._height = this.layoutDoc[WidthSym]() / youtubeaspect;
                }
            } // else it's an HTMLfield
        } else if (this.webField && !this.dataDoc.text) {
            const result = await WebRequest.get(Utils.CorsProxy(this.webField.href));
            if (result) {
                this.dataDoc.text = htmlToText.fromString(result.content);
            }
        }

        var quickScroll = true;
        this._disposers.scrollReaction = reaction(() => NumCast(this.layoutDoc._scrollTop),
            (scrollTop) => {
                if (quickScroll) this._initialScroll = scrollTop;
                else {
                    const viewTrans = StrCast(this.Document._viewTransition);
                    const durationMiliStr = viewTrans.match(/([0-9]*)ms/);
                    const durationSecStr = viewTrans.match(/([0-9.]*)s/);
                    const duration = durationMiliStr ? Number(durationMiliStr[1]) : durationSecStr ? Number(durationSecStr[1]) * 1000 : 0;
                    this.goTo(scrollTop, duration);
                }
            },
            { fireImmediately: true }
        );
        quickScroll = false;
    }
    componentWillUnmount() {
        Object.values(this._disposers).forEach(disposer => disposer?.());
        this._iframe?.removeEventListener('wheel', this.iframeWheel, true);
    }

    @action
    createTextAnnotation = (sel: Selection, selRange: Range) => {
        if (this._mainCont.current) {
            const clientRects = selRange.getClientRects();
            for (let i = 0; i < clientRects.length; i++) {
                const rect = clientRects.item(i);
                if (rect && rect.width !== this._mainCont.current.clientWidth) {
                    const annoBox = document.createElement("div");
                    annoBox.className = "marqueeAnnotator-annotationBox";
                    // transforms the positions from screen onto the pdf div
                    annoBox.style.top = (rect.top + this._mainCont.current.scrollTop).toString();
                    annoBox.style.left = (rect.left).toString();
                    annoBox.style.width = (rect.width).toString();
                    annoBox.style.height = (rect.height).toString();
                    this._annotationLayer.current && MarqueeAnnotator.previewNewAnnotation(this._savedAnnotations, this._annotationLayer.current, annoBox, 1);
                }
            }
        }
        //this._selectionText = selRange.cloneContents().textContent || "";

        // clear selection
        if (sel.empty) sel.empty();// Chrome
        else if (sel.removeAllRanges) sel.removeAllRanges();  // Firefox
    }

    menuControls = () => this.urlEditor; // controls to be added to the top bar when a document of this type is selected

    scrollFocus = (doc: Doc, smooth: boolean) => {
        if (StrCast(doc.webUrl) !== this._url) this.submitURL(StrCast(doc.webUrl), !smooth);
        if (DocListCast(this.props.Document[this.fieldKey + "-sidebar"]).includes(doc) && !this.SidebarShown) {
            this.toggleSidebar(!smooth);
        }
        if (this._sidebarRef?.current?.makeDocUnfiltered(doc)) return 1;
        if (doc !== this.rootDoc && this._outerRef.current) {
            const windowHeight = this.props.PanelHeight() / (this.props.scaling?.() || 1);
            const scrollTo = Utils.scrollIntoView(NumCast(doc.y), doc[HeightSym](), NumCast(this.layoutDoc._scrollTop), windowHeight, windowHeight * .1);
            if (scrollTo !== undefined) {
                const focusSpeed = smooth ? 500 : 0;
                this._initialScroll !== undefined && (this._initialScroll = scrollTo);
                this.goTo(scrollTo, focusSpeed);
                return focusSpeed;
            }
        }
        this._initialScroll = NumCast(this.layoutDoc._scrollTop);
        return 0;
    }

    getAnchor = () => {
        const anchor =
            AnchorMenu.Instance?.GetAnchor(this._savedAnnotations) ??
            Docs.Create.WebanchorDocument(this._url, {
                title: StrCast(this.rootDoc.title + " " + this.layoutDoc._scrollTop),
                annotationOn: this.rootDoc,
                y: NumCast(this.layoutDoc._scrollTop)
            });
        this.addDocumentWrapper(anchor);
        return anchor;
    }

    @action
    iframeUp = (e: PointerEvent) => {
        if (this._iframe?.contentWindow && this._iframe.contentDocument && !this._iframe.contentWindow.getSelection()?.isCollapsed) {
            this._iframe.contentDocument.addEventListener("pointerup", this.iframeUp);
            const mainContBounds = Utils.GetScreenTransform(this._mainCont.current!);
            const scale = (this.props.scaling?.() || 1) * mainContBounds.scale;
            const sel = this._iframe.contentWindow.getSelection();
            if (sel) {
                this.createTextAnnotation(sel, sel.getRangeAt(0));
                AnchorMenu.Instance.jumpTo(e.clientX * scale + mainContBounds.translateX,
                    e.clientY * scale + mainContBounds.translateY - NumCast(this.layoutDoc._scrollTop) * scale);
            }
        } else AnchorMenu.Instance.fadeOut(true);
    }
    @action
    iframeDown = (e: PointerEvent) => {
        const mainContBounds = Utils.GetScreenTransform(this._mainCont.current!);
        const scale = (this.props.scaling?.() || 1) * mainContBounds.scale;
        const word = getWordAtPoint(e.target, e.clientX, e.clientY);
        this._setPreviewCursor?.(e.clientX, e.clientY, false, true);
        MarqueeAnnotator.clearAnnotations(this._savedAnnotations);
        this._marqueeing = [e.clientX * scale + mainContBounds.translateX,
        e.clientY * scale + mainContBounds.translateY - NumCast(this.layoutDoc._scrollTop) * scale];
        if (word) {
            this._iframe?.contentDocument?.addEventListener("pointerup", this.iframeUp);
            setTimeout(action(() => this._marqueeing = undefined), 100); // bcz: hack .. anchor menu is setup within MarqueeAnnotator so we need to at least create the marqueeAnnotator even though we aren't using it.
        } else {
            this._iframeClick = this._iframe ?? undefined;
            this._isAnnotating = true;
            this.props.select(false);
            e.stopPropagation();
            e.preventDefault();
        }
    }

    isFirefox = () => {
        return "InstallTrigger" in window; // navigator.userAgent.indexOf("Chrome") !== -1;
    }
    iframeClick = () => this._iframeClick;
    iframeScaling = () => 1 / this.props.ScreenToLocalTransform().Scale;

    @action
    iframeLoaded = (e: any) => {
        const iframe = this._iframe;
        if (iframe?.contentDocument) {
            iframe?.contentDocument.addEventListener("pointerdown", this.iframeDown);
            this._scrollHeight = Math.max(this.scrollHeight, iframe?.contentDocument.body.scrollHeight);
            setTimeout(action(() => this._scrollHeight = Math.max(this.scrollHeight, iframe?.contentDocument?.body.scrollHeight || 0)), 5000);
            const initialScroll = this._initialScroll;
            if (initialScroll !== undefined && this._outerRef.current) {
                // bcz: not sure why this happens, but if the webpage isn't ready yet, it's scroll height seems to be limited.  So we need to wait tp set scroll location to what we want.
                setTimeout(() => this._outerRef.current!.scrollTop = initialScroll);
                this._initialScroll = undefined;
            }
            iframe.setAttribute("enable-annotation", "true");
            iframe.contentDocument.addEventListener("click", undoBatch(action(e => {
                let href = "";
                for (let ele = e.target; ele; ele = ele.parentElement) {
                    href = (typeof (ele.href) === "string" ? ele.href : ele.href?.baseVal) || ele.parentElement?.href || href;
                }
                if (href && this.webField?.origin) {
                    this.submitURL(href.replace(Utils.prepend(""), this.webField?.origin));
                    if (this._outerRef.current) {
                        this._outerRef.current.scrollTop = NumCast(this.layoutDoc._scrollTop);
                        this._outerRef.current.scrollLeft = 0;
                    }
                }
            })));
            iframe.contentDocument.addEventListener('wheel', this.iframeWheel, false);
            //iframe.contentDocument.addEventListener('scroll', () => !this.active() && this._iframe && (this._iframe.scrollTop = NumCast(this.layoutDoc._scrollTop), false));
        }
    }

    @action
    iframeWheel = (e: any) => {
        if (!this._scrollTimer) {
            this._scrollTimer = setTimeout(action(() => this._scrollTimer = undefined), 250); // this turns events off on the iframe which allows scrolling to change direction smoothly
        }
    }

    @action
    setDashScrollTop = (scrollTop: number, timeout: number = 250) => {
        const iframeHeight = Math.max(1000, this._scrollHeight - this.panelHeight());
        timeout = scrollTop > iframeHeight ? 0 : timeout;
        this._scrollTimer && clearTimeout(this._scrollTimer);
        this._scrollTimer = setTimeout(action(() => {
            this._scrollTimer = undefined;
            if (!LinkDocPreview.LinkInfo && this._outerRef.current &&
                (!LightboxView.LightboxDoc || LightboxView.IsLightboxDocView(this.props.docViewPath()))) {
                this.layoutDoc._scrollTop = this._outerRef.current.scrollTop = scrollTop > iframeHeight ? iframeHeight : scrollTop;
            }
        }), timeout);
    }

    goTo = (scrollTop: number, duration: number) => {
        if (this._outerRef.current) {
            const iframeHeight = Math.max(1000, this._scrollHeight - this.panelHeight());
            scrollTop = scrollTop > iframeHeight + 50 ? iframeHeight : scrollTop;
            if (duration) {
                smoothScroll(duration, [this._outerRef.current], scrollTop);
                this.setDashScrollTop(scrollTop, duration);
            } else {
                this.setDashScrollTop(scrollTop);
            }
        }
    }

    @action
    forward = () => {
        const future = Cast(this.dataDoc[this.fieldKey + "-future"], listSpec("string"), []);
        const history = Cast(this.dataDoc[this.fieldKey + "-history"], listSpec("string"), []);
        if (future.length) {
            this.dataDoc[this.fieldKey + "-history"] = new List<string>([...history, this._url]);
            this.dataDoc[this.fieldKey] = new WebField(new URL(future.pop()!));
            return true;
        }
        return false;
    }

    @action
    back = () => {
        const future = Cast(this.dataDoc[this.fieldKey + "-future"], listSpec("string"));
        const history = Cast(this.dataDoc[this.fieldKey + "-history"], listSpec("string"), []);
        if (history.length) {
            if (future === undefined) this.dataDoc[this.fieldKey + "-future"] = new List<string>([this._url]);
            else this.dataDoc[this.fieldKey + "-future"] = new List<string>([...future, this._url]);
            this.dataDoc[this.fieldKey] = new WebField(new URL(history.pop()!));
            return true;
        }
        return false;
    }

    static urlHash = (s: string) => {
        return s.split('').reduce((a: any, b: any) => { a = ((a << 5) - a) + b.charCodeAt(0); return a & a; }, 0);
    }

    @action
    submitURL = (newUrl?: string, preview?: boolean) => {
        if (!newUrl) return;
        if (!newUrl.startsWith("http")) newUrl = "http://" + newUrl;
        try {
            const future = Cast(this.dataDoc[this.fieldKey + "-future"], listSpec("string"));
            const history = Cast(this.dataDoc[this.fieldKey + "-history"], listSpec("string"));
            const url = this.webField?.toString();
            if (url && !preview) {
                this.dataDoc[this.fieldKey + "-history"] = new List<string>([...(history || []), url]);
                this.layoutDoc._scrollTop = 0;
                future && (future.length = 0);
            }
            if (!preview) this.dataDoc[this.fieldKey] = new WebField(new URL(newUrl));
        } catch (e) {
            console.log("WebBox URL error:" + this._url);
        }
        return true;
    }

    onWebUrlDrop = (e: React.DragEvent) => {
        const { dataTransfer } = e;
        const html = dataTransfer.getData("text/html");
        const uri = dataTransfer.getData("text/uri-list");
        const url = uri || html || this._url || "";
        const newurl = url.startsWith(window.location.origin) ?
            url.replace(window.location.origin, this._url?.match(/http[s]?:\/\/[^\/]*/)?.[0] || "") : url;
        this.submitURL(newurl);
        e.stopPropagation();
    }
    onWebUrlValueKeyDown = (e: React.KeyboardEvent) => {
        e.key === "Enter" && this.submitURL(this._keyInput.current!.value);
        e.stopPropagation();
    }

    @computed get urlEditor() {
        return (
            <div className="collectionMenu-webUrlButtons" onDrop={this.onWebUrlDrop} onDragOver={e => e.preventDefault()} >
                <input className="collectionMenu-urlInput" key={this._url}
                    placeholder="ENTER URL"
                    defaultValue={this._url}
                    onDrop={this.onWebUrlDrop}
                    onDragOver={e => e.preventDefault()}
                    onKeyDown={this.onWebUrlValueKeyDown}
                    onClick={(e) => {
                        this._keyInput.current!.select();
                        e.stopPropagation();
                    }}
                    ref={this._keyInput}
                />
                <div style={{ display: "flex", flexDirection: "row", justifyContent: "space-between", maxWidth: "250px", }}>
                    <button className="submitUrl" onClick={() => this.submitURL(this._keyInput.current!.value)} onDragOver={e => e.stopPropagation()} onDrop={this.onWebUrlDrop}>
                        GO
                    </button>
                    <button className="submitUrl" onClick={this.back}> <FontAwesomeIcon icon="caret-left" size="lg" /> </button>
                    <button className="submitUrl" onClick={this.forward}> <FontAwesomeIcon icon="caret-right" size="lg" />  </button>
                </div>
            </div>
        );
    }

    specificContextMenu = (e: React.MouseEvent): void => {
        const cm = ContextMenu.Instance;
        const funcs: ContextMenuProps[] = [];
        funcs.push({ description: (this.layoutDoc.useCors ? "Don't Use" : "Use") + " Cors", event: () => this.layoutDoc.useCors = !this.layoutDoc.useCors, icon: "snowflake" });
        funcs.push({ description: (this.layoutDoc[this.fieldKey + "-contentWidth"] ? "Unfreeze" : "Freeze") + " Content Width", event: () => this.layoutDoc[this.fieldKey + "-contentWidth"] = this.layoutDoc[this.fieldKey + "-contentWidth"] ? undefined : Doc.NativeWidth(this.layoutDoc), icon: "snowflake" });
        funcs.push({ description: "Toggle Annotation View ", event: () => this.Document._showSidebar = !this.Document._showSidebar, icon: "expand-arrows-alt" });
        cm.addItem({ description: "Options...", subitems: funcs, icon: "asterisk" });
    }

    @action
    onMarqueeDown = (e: React.PointerEvent) => {
        if (!e.altKey && e.button === 0 && this.props.isContentActive(true) && ![InkTool.Highlighter, InkTool.Pen].includes(CurrentUserUtils.SelectedTool)) {
            setupMoveUpEvents(this, e, action(e => {
                MarqueeAnnotator.clearAnnotations(this._savedAnnotations);
                this._marqueeing = [e.clientX, e.clientY];
                return true;
            }), returnFalse, () => MarqueeAnnotator.clearAnnotations(this._savedAnnotations), false);
        }
    }
    @action finishMarquee = (x?: number, y?: number) => {
        this._marqueeing = undefined;
        this._isAnnotating = false;
        this._iframeClick = undefined;
        x !== undefined && y !== undefined && this._setPreviewCursor?.(x, y, false, false);
    }

    @computed
    get urlContent() {
        const field = this.dataDoc[this.props.fieldKey];
        let view;
        if (field instanceof HtmlField) {
            view = <span className="webBox-htmlSpan" dangerouslySetInnerHTML={{ __html: field.html }} />;
        } else if (field instanceof WebField) {
            const url = this.layoutDoc.useCors ? Utils.CorsProxy(this._url) : this._url;
            view = <iframe className="webBox-iframe" enable-annotation={"true"}
                style={{ pointerEvents: this._scrollTimer ? "none" : undefined }}
                ref={action((r: HTMLIFrameElement | null) => this._iframe = r)} src={url} onLoad={this.iframeLoaded}
                // the 'allow-top-navigation' and 'allow-top-navigation-by-user-activation' attributes are left out to prevent iframes from redirecting the top-level Dash page
                // sandbox={"allow-forms allow-modals allow-orientation-lock allow-pointer-lock allow-popups allow-popups-to-escape-sandbox allow-presentation allow-same-origin allow-scripts"} />;
                sandbox={"allow-forms allow-modals allow-orientation-lock allow-pointer-lock allow-popups allow-popups-to-escape-sandbox allow-presentation allow-same-origin"} />;
        } else {
            view = <iframe className="webBox-iframe" enable-annotation={"true"}
                style={{ pointerEvents: this._scrollTimer ? "none" : undefined }} // if we allow pointer events when scrolling is on, then reversing direction does not work smoothly
                ref={action((r: HTMLIFrameElement | null) => this._iframe = r)} src={"https://crossorigin.me/https://cs.brown.edu"} />;
        }
        return view;
    }

    addDocumentWrapper = (doc: Doc | Doc[], annotationKey?: string) => {
        (doc instanceof Doc ? [doc] : doc).forEach(doc => doc.webUrl = this._url);
        return this.addDocument(doc, annotationKey);
    }

    sidebarAddDocument = (doc: Doc | Doc[], sidebarKey?: string) => {
        if (!this.layoutDoc._showSidebar) this.toggleSidebar();
        return this.addDocumentWrapper(doc, sidebarKey);
    }
    sidebarBtnDown = (e: React.PointerEvent) => {
        setupMoveUpEvents(this, e, (e, down, delta) => {
            const localDelta = this.props.ScreenToLocalTransform().scale(this.props.scaling?.() || 1).transformDirection(delta[0], delta[1]);
            const nativeWidth = NumCast(this.layoutDoc[this.fieldKey + "-nativeWidth"]);
            const curNativeWidth = NumCast(this.layoutDoc.nativeWidth, nativeWidth);
            const ratio = (curNativeWidth + localDelta[0] / (this.props.scaling?.() || 1)) / nativeWidth;
            if (ratio >= 1) {
                this.layoutDoc.nativeWidth = nativeWidth * ratio;
                this.layoutDoc._width = this.layoutDoc[WidthSym]() + localDelta[0];
                this.layoutDoc._showSidebar = nativeWidth !== this.layoutDoc._nativeWidth;
            }
            return false;
        }, emptyFunction, () => this.toggleSidebar());
    }
    @observable _previewNativeWidth: Opt<number> = undefined;
    @observable _previewWidth: Opt<number> = undefined;
    toggleSidebar = action((preview: boolean = false) => {
        const nativeWidth = NumCast(this.layoutDoc[this.fieldKey + "-nativeWidth"]);
        const ratio = ((!this.layoutDoc.nativeWidth || this.layoutDoc.nativeWidth === nativeWidth ? WebBox.openSidebarWidth : 0) + nativeWidth) / nativeWidth;
        const curNativeWidth = NumCast(this.layoutDoc.nativeWidth, nativeWidth);
        if (preview) {
            this._previewNativeWidth = nativeWidth * ratio;
            this._previewWidth = this.layoutDoc[WidthSym]() * nativeWidth * ratio / curNativeWidth;
            this._showSidebar = true;
        }
        else {
            this.layoutDoc.nativeWidth = nativeWidth * ratio;
            this.layoutDoc._width = this.layoutDoc[WidthSym]() * nativeWidth * ratio / curNativeWidth;
            this.layoutDoc._showSidebar = nativeWidth !== this.layoutDoc._nativeWidth;
        }
    });
    sidebarWidth = () => !this.SidebarShown ? 0 :
        this._previewWidth ? WebBox.openSidebarWidth :
            (NumCast(this.layoutDoc.nativeWidth) - Doc.NativeWidth(this.dataDoc)) * this.props.PanelWidth() /
            NumCast(this.layoutDoc.nativeWidth)

    @computed get content() {
        return <div className={"webBox-cont" + (!this.props.docViewPath().lastElement()?.docView?._pendingDoubleClick && this.props.isContentActive() && CurrentUserUtils.SelectedTool === InkTool.None && !DocumentDecorations.Instance?.Interacting ? "-interactive" : "")}
            style={{ width: NumCast(this.layoutDoc[this.fieldKey + "-contentWidth"]) || `${100 / (this.props.scaling?.() || 1)}%`, }}>
            {this.urlContent}
        </div>;
    }

    @computed get annotationLayer() {
        TraceMobx();
        return <div className="webBox-annotationLayer" style={{ height: Doc.NativeHeight(this.Document) || undefined }} ref={this._annotationLayer}>
            {this.inlineTextAnnotations.sort((a, b) => NumCast(a.y) - NumCast(b.y)).map(anno =>
                <Annotation {...this.props} fieldKey={this.annotationKey} showInfo={this.showInfo} dataDoc={this.dataDoc} anno={anno} key={`${anno[Id]}-annotation`} />)
            }
        </div>;

    }
    @observable _showSidebar = false;
    @computed get SidebarShown() { return this._showSidebar || this.layoutDoc._showSidebar ? true : false; }

    showInfo = action((anno: Opt<Doc>) => this._overlayAnnoInfo = anno);
    setPreviewCursor = (func?: (x: number, y: number, drag: boolean, hide: boolean) => void) => this._setPreviewCursor = func;
    panelWidth = () => this.props.PanelWidth() / (this.props.scaling?.() || 1) - this.sidebarWidth(); // (this.Document.scrollHeight || Doc.NativeHeight(this.Document) || 0);
    panelHeight = () => this.props.PanelHeight() / (this.props.scaling?.() || 1); // () => this._pageSizes.length && this._pageSizes[0] ? this._pageSizes[0].width : Doc.NativeWidth(this.Document);
    scrollXf = () => this.props.ScreenToLocalTransform().translate(0, NumCast(this.layoutDoc._scrollTop));
    anchorMenuClick = () => this._sidebarRef.current?.anchorMenuClick;
    transparentFilter = () => [...this.props.docFilters(), Utils.IsTransparentFilter()];
    opaqueFilter = () => [...this.props.docFilters(), Utils.IsOpaqueFilter()];
    render() {
        const pointerEvents = this.props.layerProvider?.(this.layoutDoc) === false ? "none" : undefined;
        const previewScale = this._previewNativeWidth ? 1 - this.sidebarWidth() / this._previewNativeWidth : 1;
        const scale = previewScale * (this.props.scaling?.() || 1);
        const renderAnnotations = (docFilters?: () => string[]) =>
            <CollectionFreeFormView {...OmitKeys(this.props, ["NativeWidth", "NativeHeight", "setContentView"]).omit}
                renderDepth={this.props.renderDepth + 1}
                isAnnotationOverlay={true}
                fieldKey={this.annotationKey}
                CollectionView={undefined}
                setPreviewCursor={this.setPreviewCursor}
                PanelWidth={this.panelWidth}
                PanelHeight={this.panelHeight}
                ScreenToLocalTransform={this.scrollXf}
                scaling={returnOne}
                dropAction={"alias"}
                docFilters={docFilters || this.props.docFilters}
                dontRenderDocuments={docFilters ? false : true}
                select={emptyFunction}
                ContentScaling={returnOne}
                bringToFront={emptyFunction}
                whenChildContentsActiveChanged={this.whenChildContentsActiveChanged}
                removeDocument={this.removeDocument}
                moveDocument={this.moveDocument}
                addDocument={this.sidebarAddDocument}
                childPointerEvents={true}
                pointerEvents={CurrentUserUtils.SelectedTool !== InkTool.None || this._isAnnotating || SnappingManager.GetIsDragging() ? "all" : "none"} />;
        return (
            <div className="webBox" ref={this._mainCont} style={{ pointerEvents: this.props.isContentActive() ? "all" : this.props.isContentActive() || SnappingManager.GetIsDragging() ? undefined : "none" }} >
                <div className={`webBox-container`} style={{ pointerEvents }} onContextMenu={this.specificContextMenu}>
                    <base target="_blank" />
                    <div className={"webBox-outerContent"} ref={this._outerRef}
                        style={{
                            width: `calc(${100 / scale}% - ${this.sidebarWidth() / scale * (this._previewWidth ? scale : 1)}px)`,
                            height: `${100 / scale}%`,
                            transform: `scale(${scale})`,
                            pointerEvents
                        }}
                        onWheel={e => { e.stopPropagation(); e.preventDefault(); }} // block wheel events from propagating since they're handled by the iframe
                        onScroll={e => this.setDashScrollTop(this._outerRef.current?.scrollTop || 0)}
                        onPointerDown={this.onMarqueeDown}
                    >
                        <div className={"webBox-innerContent"} style={{ height: NumCast(this.scrollHeight, 50), pointerEvents }}>
                            {this.content}
                            <div style={{ mixBlendMode: "multiply" }}>
                                {renderAnnotations(this.transparentFilter)}
                            </div>
                            {renderAnnotations(this.opaqueFilter)}
                            {SnappingManager.GetIsDragging() ? (null) : renderAnnotations()}
                            {this.annotationLayer}
                        </div>
                    </div>
                    {!this._marqueeing || !this._mainCont.current || !this._annotationLayer.current ? (null) :
                        <MarqueeAnnotator rootDoc={this.rootDoc}
                            iframe={this.isFirefox() ? this.iframeClick : undefined}
                            iframeScaling={this.isFirefox() ? this.iframeScaling : undefined}
                            anchorMenuClick={this.anchorMenuClick}
                            scrollTop={0}
                            down={this._marqueeing} scaling={returnOne}
                            addDocument={this.addDocumentWrapper}
                            docView={this.props.docViewPath().lastElement()}
                            finishMarquee={this.finishMarquee}
                            savedAnnotations={this._savedAnnotations}
                            annotationLayer={this._annotationLayer.current}
                            mainCont={this._mainCont.current} />}
                </div >
                <SidebarAnnos ref={this._sidebarRef}
                    {...this.props}
                    fieldKey={this.fieldKey + "-" + this._urlHash}
                    rootDoc={this.rootDoc}
                    layoutDoc={this.layoutDoc}
                    dataDoc={this.dataDoc}
                    setHeight={emptyFunction}
                    nativeWidth={this._previewNativeWidth ?? NumCast(this.layoutDoc._nativeWidth)}
                    showSidebar={this.SidebarShown}
                    sidebarAddDocument={this.sidebarAddDocument}
                    moveDocument={this.moveDocument}
                    removeDocument={this.removeDocument}
                />
                <button className="webBox-overlayButton-sidebar" key="sidebar" title="Toggle Sidebar"
                    style={{ display: !this.props.isContentActive() ? "none" : undefined }}
                    onPointerDown={this.sidebarBtnDown} >
                    <FontAwesomeIcon style={{ color: "white" }} icon={"chevron-left"} size="sm" />
                </button>
            </div>);
    }
}
Scripting.addGlobal(function urlHash(url: string) { return WebBox.urlHash(url); });