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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, true);
}
componentWillUnmount() {
document.removeEventListener('pointerdown', this.onPointerDown, true);
}
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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