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import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { Tooltip } from '@material-ui/core';
import { action, computed, observable } from 'mobx';
import { observer } from "mobx-react";
import wiki from "wikijs";
import { Doc, DocListCast, HeightSym, Opt, WidthSym, DocCastAsync } from "../../../fields/Doc";
import { NumCast, StrCast, Cast } from "../../../fields/Types";
import { emptyFunction, emptyPath, returnEmptyDoclist, returnEmptyFilter, returnFalse, setupMoveUpEvents, Utils } from "../../../Utils";
import { DocServer } from '../../DocServer';
import { Docs, DocUtils } from "../../documents/Documents";
import { LinkManager } from '../../util/LinkManager';
import { Transform } from "../../util/Transform";
import { undoBatch } from '../../util/UndoManager';
import { DocumentView, DocumentViewSharedProps } from "./DocumentView";
import './LinkDocPreview.scss';
import React = require("react");
import { DocumentType } from '../../documents/DocumentTypes';
interface LinkDocPreviewProps {
linkDoc?: Doc;
linkSrc?: Doc;
docProps: DocumentViewSharedProps;
location: number[];
hrefs?: string[];
showHeader?: boolean;
}
@observer
export class LinkDocPreview extends React.Component<LinkDocPreviewProps> {
@action public static Clear() { LinkDocPreview.LinkInfo = undefined; }
@action public static SetLinkInfo(info?: LinkDocPreviewProps) { LinkDocPreview.LinkInfo !== info && (LinkDocPreview.LinkInfo = info); }
_infoRef = React.createRef<HTMLDivElement>();
@observable public static LinkInfo: Opt<LinkDocPreviewProps>;
@observable _targetDoc: Opt<Doc>;
@observable _linkDoc: Opt<Doc>;
@observable _linkSrc: Opt<Doc>;
@observable _toolTipText = "";
@observable _hrefInd = 0;
@action init() {
var linkTarget = this.props.linkDoc;
this._linkSrc = this.props.linkSrc;
this._linkDoc = this.props.linkDoc;
const anchor1 = this._linkDoc?.anchor1 as Doc;
const anchor2 = this._linkDoc?.anchor2 as Doc;
if (anchor1 && anchor2) {
linkTarget = Doc.AreProtosEqual(anchor1, this._linkSrc) || Doc.AreProtosEqual(anchor1?.annotationOn as Doc, this._linkSrc) ? anchor2 : anchor1;
}
if (linkTarget?.annotationOn && linkTarget?.type !== DocumentType.RTF) { // want to show annotation context document if annotation is not text
linkTarget && DocCastAsync(linkTarget.annotationOn).then(action(anno => this._targetDoc = anno));
} else {
this._targetDoc = linkTarget;
}
this._toolTipText = "";
}
componentDidUpdate(props: any) {
if (props.linkSrc !== this.props.linkSrc || props.linkDoc !== this.props.linkDoc || props.hrefs !== this.props.hrefs) this.init();
}
componentDidMount() {
this.init();
document.addEventListener("pointerdown", this.onPointerDown);
}
componentWillUnmount() {
LinkDocPreview.SetLinkInfo(undefined);
document.removeEventListener("pointerdown", this.onPointerDown);
}
onPointerDown = (e: PointerEvent) => {
!this._infoRef.current?.contains(e.target as any) && LinkDocPreview.Clear(); // close preview when not clicking anywhere other than the info bar of the preview
}
@computed get href() {
if (this.props.hrefs?.length) {
const href = this.props.hrefs[this._hrefInd];
if (href.indexOf(Doc.localServerPath()) !== 0) { // link to a web page URL -- try to show a preview
if (href.startsWith("https://en.wikipedia.org/wiki/")) {
wiki().page(href.replace("https://en.wikipedia.org/wiki/", "")).then(page => page.summary().then(action(summary => this._toolTipText = summary.substring(0, 500))));
} else {
setTimeout(action(() => this._toolTipText = "url => " + href));
}
} else { // hyperlink to a document .. decode doc id and retrieve from the server. this will trigger vals() being invalidated
const anchorDoc = href.replace(Doc.localServerPath(), "").split("?")[0];
anchorDoc && DocServer.GetRefField(anchorDoc).then(action(anchor => {
if (anchor instanceof Doc && DocListCast(anchor.links).length) {
this._linkDoc = this._linkDoc ?? DocListCast(anchor.links)[0];
this._linkSrc = anchor;
const linkTarget = LinkManager.getOppositeAnchor(this._linkDoc, this._linkSrc);
this._targetDoc = linkTarget?.type === DocumentType.MARKER && linkTarget?.annotationOn ? Cast(linkTarget.annotationOn, Doc, null) ?? linkTarget : linkTarget;
this._toolTipText = "";
}
}));
}
return href;
}
return undefined;
}
deleteLink = (e: React.PointerEvent) => {
setupMoveUpEvents(this, e, returnFalse, emptyFunction, undoBatch(() => this._linkDoc && LinkManager.Instance.deleteLink(this._linkDoc)));
}
nextHref = (e: React.PointerEvent) => {
setupMoveUpEvents(this, e, returnFalse, emptyFunction, action(() => this._hrefInd = (this._hrefInd + 1) % (this.props.hrefs?.length || 1)));
}
followLink = (e: React.PointerEvent) => {
if (this._linkDoc && this._linkSrc) {
LinkDocPreview.Clear();
LinkManager.FollowLink(this._linkDoc, this._linkSrc, this.props.docProps, false);
} else if (this.props.hrefs?.length) {
this.props.docProps?.addDocTab(Docs.Create.WebDocument(this.props.hrefs[0], { title: this.props.hrefs[0], _width: 200, _height: 400, useCors: true }), "add:right");
}
}
width = () => {
if (!this._targetDoc) return 225;
if (this._targetDoc[WidthSym]() < this._targetDoc?.[HeightSym]()) {
return Math.min(225, this._targetDoc[HeightSym]()) * this._targetDoc[WidthSym]() / this._targetDoc[HeightSym]();
}
return Math.min(225, NumCast(this._targetDoc?.[WidthSym](), 225));
}
height = () => {
if (!this._targetDoc) return 225;
if (this._targetDoc[WidthSym]() > this._targetDoc?.[HeightSym]()) {
return Math.min(225, this._targetDoc[WidthSym]()) * this._targetDoc[HeightSym]() / this._targetDoc[WidthSym]();
}
return Math.min(225, NumCast(this._targetDoc?.[HeightSym](), 225));
}
@computed get previewHeader() {
return !this._linkDoc || !this._targetDoc || !this._linkSrc ? (null) :
<div className="linkDocPreview-info" ref={this._infoRef}>
<div className="linkDocPreview-title">
{StrCast(this._targetDoc.title).length > 16 ? StrCast(this._targetDoc.title).substr(0, 16) + "..." : this._targetDoc.title}
<p className="linkDocPreview-description"> {StrCast(this._linkDoc.description)}</p>
</div>
<div className="linkDocPreview-buttonBar" >
<Tooltip title={<div className="dash-tooltip">Next Link</div>} placement="top">
<div className="linkDocPreview-button" style={{ background: (this.props.hrefs?.length || 0) <= 1 ? "gray" : "green" }} onPointerDown={this.nextHref}>
<FontAwesomeIcon className="linkDocPreview-fa-icon" icon="chevron-right" color="white" size="sm" />
</div>
</Tooltip>
<Tooltip title={<div className="dash-tooltip">Delete Link</div>} placement="top">
<div className="linkDocPreview-button" onPointerDown={this.deleteLink}>
<FontAwesomeIcon className="linkDocPreview-fa-icon" icon="trash" color="white" size="sm" />
</div>
</Tooltip>
</div>
</div>;
}
@computed get docPreview() {
const href = this.href; // needs to be here to trigger lookup of web pages and docs on server
return (!this._linkDoc || !this._targetDoc || !this._linkSrc) && !this._toolTipText ? (null) :
<div className="linkDocPreview-inner">
{!this.props.showHeader ? (null) : this.previewHeader}
<div className="linkDocPreview-preview-wrapper">
{this._toolTipText ? this._toolTipText :
<DocumentView ref={(r) => {
const targetanchor = LinkManager.getOppositeAnchor(this._linkDoc!, this._linkSrc!);
targetanchor && this._targetDoc !== targetanchor && r?.focus(targetanchor);
}}
Document={this._targetDoc!}
moveDocument={returnFalse}
rootSelected={returnFalse}
styleProvider={this.props.docProps?.styleProvider}
layerProvider={this.props.docProps?.layerProvider}
docViewPath={returnEmptyDoclist}
ScreenToLocalTransform={Transform.Identity}
isDocumentActive={returnFalse}
isContentActive={emptyFunction}
addDocument={returnFalse}
removeDocument={returnFalse}
addDocTab={returnFalse}
pinToPres={returnFalse}
dontRegisterView={true}
docFilters={returnEmptyFilter}
docRangeFilters={returnEmptyFilter}
searchFilterDocs={returnEmptyDoclist}
ContainingCollectionDoc={undefined}
ContainingCollectionView={undefined}
renderDepth={-1}
PanelWidth={this.width}
PanelHeight={this.height}
focus={DocUtils.DefaultFocus}
whenChildContentsActiveChanged={returnFalse}
ignoreAutoHeight={true} // need to ignore autoHeight otherwise autoHeight text boxes will expand beyond the preview panel size.
bringToFront={returnFalse}
NativeWidth={Doc.NativeWidth(this._targetDoc) ? () => Doc.NativeWidth(this._targetDoc) : undefined}
NativeHeight={Doc.NativeHeight(this._targetDoc) ? () => Doc.NativeHeight(this._targetDoc) : undefined}
/>}
</div>
</div>;
}
render() {
const borders = 16; // 8px border on each side
return <div className="linkDocPreview" onPointerDown={this.followLink}
style={{ left: this.props.location[0], top: this.props.location[1], width: this.width() + borders, height: this.height() + borders + (this.props.showHeader ? 37 : 0) }}>
{this.docPreview}
</div>;
}
}
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