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import { observer } from "mobx-react";
import React = require("react")
import { observable, action } from "mobx";
import "./PresentationView.scss"
import "./Main.tsx";
import { DocumentManager } from "../util/DocumentManager";
import { Utils } from "../../Utils";
import { Doc } from "../../new_fields/Doc";
import { listSpec } from "../../new_fields/Schema";
import { Cast, NumCast, FieldValue } from "../../new_fields/Types";
import { Id } from "../../new_fields/RefField";
import { List } from "../../new_fields/List";
export interface PresViewProps {
Document: Doc;
}
@observer
/**
* Component that takes in a document prop and a boolean whether it's collapsed or not.
*/
class PresentationViewItem extends React.Component<PresViewProps> {
//look at CollectionFreeformView.focusDocument(d)
@action
openDoc = (doc: Doc) => {
let docView = DocumentManager.Instance.getDocumentView(doc);
if (docView) {
docView.props.focus(docView.props.Document);
}
}
/**
* Removes a document from the presentation view
**/
@action
public RemoveDoc(doc: Doc) {
const value = Cast(this.props.Document.data, listSpec(Doc), []);
let index = -1;
for (let i = 0; i < value.length; i++) {
if (value[i][Id] === doc[Id]) {
index = i;
break;
}
}
if (index !== -1) {
value.splice(index, 1);
}
}
/**
* Renders a single child document. It will just append a list element.
* @param document The document to render.
*/
renderChild(document: Doc) {
let title = document.title;
//to get currently selected presentation doc
let selected = NumCast(this.props.Document.selectedDoc, 0);
// finally, if it's a normal document, then render it as such.
const children = Cast(this.props.Document.data, listSpec(Doc));
const styles: any = {};
if (children && children[selected] === document) {
//this doc is selected
styles.background = "gray";
}
return (
<li className="presentationView-item" style={styles} key={Utils.GenerateGuid()}>
<div className="presentationView-header" onClick={() => this.openDoc(document)}>{title}</div>
<div className="presentation-icon" onClick={() => this.RemoveDoc(document)}>X</div>
</li>
);
}
render() {
const children = Cast(this.props.Document.data, listSpec(Doc), []);
return (
<div>
{children.map(value => this.renderChild(value))}
</div>
);
}
}
@observer
export class PresentationView extends React.Component<PresViewProps> {
public static Instance: PresentationView;
//observable means render is re-called every time variable is changed
@observable
collapsed: boolean = false;
closePresentation = action(() => this.props.Document.width = 0);
next = () => {
const current = NumCast(this.props.Document.selectedDoc);
const allDocs = FieldValue(Cast(this.props.Document.data, listSpec(Doc)));
if (allDocs && current < allDocs.length + 1) {
//can move forwards
this.props.Document.selectedDoc = current + 1;
const doc = allDocs[current + 1];
let docView = DocumentManager.Instance.getDocumentView(doc);
if (docView) {
docView.props.focus(docView.props.Document);
}
}
}
back = () => {
const current = NumCast(this.props.Document.selectedDoc);
const allDocs = FieldValue(Cast(this.props.Document.data, listSpec(Doc)));
if (allDocs && current - 1 >= 0) {
//can move forwards
this.props.Document.selectedDoc = current - 1;
const doc = allDocs[current - 1];
let docView = DocumentManager.Instance.getDocumentView(doc);
if (docView) {
docView.props.focus(docView.props.Document);
}
}
}
private ref = React.createRef<HTMLDivElement>();
//initilize class variables
constructor(props: PresViewProps) {
super(props);
PresentationView.Instance = this;
}
/**
* Adds a document to the presentation view
**/
@action
public PinDoc(doc: Doc) {
//add this new doc to props.Document
const data = Cast(this.props.Document.data, listSpec(Doc));
if (data) {
data.push(doc);
} else {
this.props.Document.data = new List([doc]);
}
this.props.Document.width = 300;
}
render() {
let titleStr = this.props.Document.Title;
let width = NumCast(this.props.Document.width);
//TODO: next and back should be icons
return (
<div className="presentationView-cont" style={{ width: width, overflow: "hidden" }}>
<div className="presentationView-heading">
<div className="presentationView-title">{titleStr}</div>
<div className='presentation-icon' onClick={this.closePresentation}>X</div></div>
<div>
<div className="presentation-back" onClick={this.back}>back</div>
<div className="presentation-next" onClick={this.next}>next</div>
</div>
<ul>
<PresentationViewItem
Document={this.props.Document}
/>
</ul>
</div>
);
}
}
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