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import { CollectionSubView } from "./CollectionSubView";
import React = require("react");
import { computed, action, IReactionDisposer, reaction, runInAction, observable } from "mobx";
import { NumCast } from "../../../fields/Types";
import "./CollectionStaffView.scss";
import { observer } from "mobx-react";
@observer
export class CollectionStaffView extends CollectionSubView(doc => doc) {
private _reactionDisposer: IReactionDisposer | undefined;
@observable private _staves = NumCast(this.props.Document.staves);
componentWillUnmount() {
this._reactionDisposer?.();
}
componentDidMount = () => {
this._reactionDisposer = reaction(() => NumCast(this.props.Document.staves),
(staves) => runInAction(() => this._staves = staves)
);
this.props.Document.staves = 5;
}
@computed get addStaffButton() {
return <div onPointerDown={this.addStaff}>+</div>;
}
@computed get staves() {
const staves = [];
for (let i = 0; i < this._staves; i++) {
const rows = [];
for (let j = 0; j < 5; j++) {
rows.push(<div key={`staff-${i}-${j}`} className="collectionStaffView-line"></div>);
}
staves.push(<div key={`staff-${i}`} className="collectionStaffView-staff">
{rows}
</div>);
}
return staves;
}
@action
addStaff = (e: React.PointerEvent) => {
this.props.Document.staves = this._staves + 1;
}
render() {
return <div className="collectionStaffView">
{this.staves}
{this.addStaffButton}
</div>;
}
}
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