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import { action, computed, observable } from "mobx";
import { observer } from "mobx-react";
import { Doc } from "../../../fields/Doc";
import { LinkManager } from "../../util/LinkManager";
import { DocumentView } from "../nodes/DocumentView";
import { LinkDocPreview } from "../nodes/LinkDocPreview";
import { LinkEditor } from "./LinkEditor";
import './LinkMenu.scss';
import { LinkMenuGroup } from "./LinkMenuGroup";
import React = require("react");
interface Props {
docView: DocumentView;
position?: { x?: number, y?: number };
itemHandler?: (doc: Doc) => void;
clearLinkEditor: () => void;
}
/**
* the outermost component for the link menu of a node that contains a list of its linked nodes
*/
@observer
export class LinkMenu extends React.Component<Props> {
_editorRef = React.createRef<HTMLDivElement>();
@observable _editingLink?: Doc;
@observable _linkMenuRef = React.createRef<HTMLDivElement>();
@computed get position() {
return this.props.position ?? (dv => ({ x: dv?.left || 0, y: (dv?.bottom || 0) + 15 }))(this.props.docView.getBounds());
}
clear = action(() => {
this.props.clearLinkEditor();
this._editingLink = undefined;
});
componentDidMount() { document.addEventListener("pointerdown", this.onPointerDown); }
componentWillUnmount() { document.removeEventListener("pointerdown", this.onPointerDown); }
onPointerDown = action((e: PointerEvent) => {
LinkDocPreview.Clear();
if (!this._linkMenuRef.current?.contains(e.target as any) &&
!this._editorRef.current?.contains(e.target as any)) {
this.clear();
}
});
/**
* maps each link to a JSX element to be rendered
* @param groups containing info of all of the links
* @returns list of link JSX elements if there at least one linked element
*/
renderAllGroups = (groups: Map<string, Array<Doc>>): Array<JSX.Element> => {
const linkItems = Array.from(groups.entries()).map(group =>
<LinkMenuGroup
key={group[0]}
itemHandler={this.props.itemHandler}
docView={this.props.docView}
sourceDoc={this.props.docView.props.Document}
group={group[1]}
groupType={group[0]}
clearLinkEditor={this.clear}
showEditor={action(linkDoc => this._editingLink = linkDoc)} />);
return linkItems.length ? linkItems : this.props.position ? [<></>] : [<p key="">No links have been created yet. Drag the linking button onto another document to create a link.</p>];
}
render() {
const sourceDoc = this.props.docView.props.Document;
return <div className="linkMenu" ref={this._linkMenuRef}
style={{ left: this.position.x, top: this.props.docView.topMost ? undefined : this.position.y, bottom: this.props.docView.topMost ? 20 : undefined }}
>
{this._editingLink ?
<div className="linkMenu-listEditor">
<LinkEditor sourceDoc={sourceDoc} linkDoc={this._editingLink} showLinks={action(() => this._editingLink = undefined)} />
</div> :
<div className="linkMenu-list" >
{this.renderAllGroups(LinkManager.Instance.getRelatedGroupedLinks(sourceDoc))}
</div>}
</div>;
}
}
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