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import React = require("react");
import { observable, action } from "mobx";
import { observer } from "mobx-react";
import { IconProp, library } from '@fortawesome/fontawesome-svg-core';
import { faAngleRight } from '@fortawesome/free-solid-svg-icons';
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { UndoManager } from "../util/UndoManager";
library.add(faAngleRight);
export interface OriginalMenuProps {
description: string;
event: (stuff?: any) => void;
undoable?: boolean;
icon: IconProp; //maybe should be optional (icon?)
closeMenu?: () => void;
}
export interface SubmenuProps {
description: string;
subitems: ContextMenuProps[];
icon: IconProp; //maybe should be optional (icon?)
closeMenu?: () => void;
}
export type ContextMenuProps = OriginalMenuProps | SubmenuProps;
@observer
export class ContextMenuItem extends React.Component<ContextMenuProps & { selected?: boolean }> {
@observable private _items: Array<ContextMenuProps> = [];
@observable private overItem = false;
constructor(props: ContextMenuProps | SubmenuProps) {
super(props);
if ("subitems" in this.props) {
this.props.subitems.forEach(i => this._items.push(i));
}
}
handleEvent = async (e: React.MouseEvent<HTMLDivElement>) => {
if ("event" in this.props) {
this.props.closeMenu && this.props.closeMenu();
let batch: UndoManager.Batch | undefined;
if (this.props.undoable !== false) {
batch = UndoManager.StartBatch(`Context menu event: ${this.props.description}`);
}
await this.props.event({ x: e.clientX, y: e.clientY });
batch && batch.end();
}
}
currentTimeout?: any;
static readonly timeout = 300;
onPointerEnter = () => {
if (this.currentTimeout) {
clearTimeout(this.currentTimeout);
this.currentTimeout = undefined;
}
if (this.overItem) {
return;
}
this.currentTimeout = setTimeout(action(() => this.overItem = true), ContextMenuItem.timeout);
}
onPointerLeave = () => {
if (this.currentTimeout) {
clearTimeout(this.currentTimeout);
this.currentTimeout = undefined;
}
if (!this.overItem) {
return;
}
this.currentTimeout = setTimeout(action(() => this.overItem = false), ContextMenuItem.timeout);
}
render() {
if ("event" in this.props) {
return (
<div className={"contextMenu-item" + (this.props.selected ? " contextMenu-itemSelected" : "")} onClick={this.handleEvent}>
{this.props.icon ? (
<span className="icon-background">
<FontAwesomeIcon icon={this.props.icon} size="sm" />
</span>
) : null}
<div className="contextMenu-description">
{this.props.description}
</div>
</div>
);
} else if ("subitems" in this.props) {
const submenu = !this.overItem ? (null) :
<div className="contextMenu-subMenu-cont" style={{ marginLeft: "25%", left: "0px" }}>
{this._items.map(prop => <ContextMenuItem {...prop} key={prop.description} closeMenu={this.props.closeMenu} />)}
</div>;
return (
<div className={"contextMenu-item" + (this.props.selected ? " contextMenu-itemSelected" : "")} onMouseLeave={this.onPointerLeave} onMouseEnter={this.onPointerEnter}>
{this.props.icon ? (
<span className="icon-background" onMouseEnter={this.onPointerLeave}>
<FontAwesomeIcon icon={this.props.icon} size="sm" />
</span>
) : null}
<div className="contextMenu-description" onMouseEnter={this.onPointerEnter} >
{this.props.description}
<FontAwesomeIcon icon={faAngleRight} size="lg" style={{ position: "absolute", right: "10px" }} />
</div>
{submenu}
</div>
);
}
}
}
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