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import { action, computed, observable } from 'mobx';
import { observer } from 'mobx-react';
import * as React from 'react';
import { Doc, DocListCast, Opt } from '../../../new_fields/Doc';
import { Id } from '../../../new_fields/FieldSymbols';
import { List } from '../../../new_fields/List';
import { listSpec } from '../../../new_fields/Schema';
import { Cast, FieldValue, NumCast, PromiseValue } from '../../../new_fields/Types';
import { SelectionManager } from '../../util/SelectionManager';
import { ContextMenu } from '../ContextMenu';
import { FieldViewProps } from '../nodes/FieldView';
export enum CollectionViewType {
Invalid,
Freeform,
Schema,
Docking,
Tree,
Stacking
}
export interface CollectionRenderProps {
addDocument: (document: Doc, allowDuplicates?: boolean) => boolean;
removeDocument: (document: Doc) => boolean;
moveDocument: (document: Doc, targetCollection: Doc, addDocument: (document: Doc) => boolean) => boolean;
active: () => boolean;
whenActiveChanged: (isActive: boolean) => void;
}
export interface CollectionViewProps extends FieldViewProps {
onContextMenu?: (e: React.MouseEvent) => void;
children: (type: CollectionViewType, props: CollectionRenderProps) => JSX.Element | JSX.Element[] | null;
className?: string;
contentRef?: React.Ref<HTMLDivElement>;
}
@observer
export class CollectionBaseView extends React.Component<CollectionViewProps> {
@observable private static _safeMode = false;
static InSafeMode() { return this._safeMode; }
static SetSafeMode(safeMode: boolean) { this._safeMode = safeMode; }
get collectionViewType(): CollectionViewType | undefined {
let Document = this.props.Document;
let viewField = Cast(Document.viewType, "number");
if (CollectionBaseView._safeMode) {
if (viewField === CollectionViewType.Freeform) {
return CollectionViewType.Tree;
}
if (viewField === CollectionViewType.Invalid) {
return CollectionViewType.Freeform;
}
}
if (viewField !== undefined) {
return viewField;
} else {
return CollectionViewType.Invalid;
}
}
active = (): boolean => {
var isSelected = this.props.isSelected();
var topMost = this.props.isTopMost;
return isSelected || this._isChildActive || topMost;
}
//TODO should this be observable?
private _isChildActive = false;
whenActiveChanged = (isActive: boolean) => {
this._isChildActive = isActive;
this.props.whenActiveChanged(isActive);
}
createsCycle(documentToAdd: Doc, containerDocument: Doc): boolean {
if (!(documentToAdd instanceof Doc)) {
return false;
}
let data = DocListCast(documentToAdd.data);
for (const doc of data) {
if (this.createsCycle(doc, containerDocument)) {
return true;
}
}
let annots = DocListCast(documentToAdd.annotations);
for (const annot of annots) {
if (this.createsCycle(annot, containerDocument)) {
return true;
}
}
for (let containerProto: Opt<Doc> = containerDocument; containerProto !== undefined; containerProto = FieldValue(containerProto.proto)) {
if (containerProto[Id] === documentToAdd[Id]) {
return true;
}
}
return false;
}
@computed get isAnnotationOverlay() { return this.props.fieldKey === "annotations"; }
@action.bound
addDocument(doc: Doc, allowDuplicates: boolean = false): boolean {
let props = this.props;
var curPage = NumCast(props.Document.curPage, -1);
Doc.SetOnPrototype(doc, "page", curPage);
if (curPage >= 0) {
Doc.SetOnPrototype(doc, "annotationOn", props.Document);
}
if (!this.createsCycle(doc, props.Document)) {
//TODO This won't create the field if it doesn't already exist
const value = Cast(props.Document[props.fieldKey], listSpec(Doc));
let alreadyAdded = true;
if (value !== undefined) {
if (allowDuplicates || !value.some(v => v instanceof Doc && v[Id] === doc[Id])) {
alreadyAdded = false;
value.push(doc);
}
} else {
alreadyAdded = false;
Doc.SetOnPrototype(this.props.Document, this.props.fieldKey, new List([doc]));
}
// set the ZoomBasis only if hasn't already been set -- bcz: maybe set/resetting the ZoomBasis should be a parameter to addDocument?
if (!alreadyAdded && (this.collectionViewType === CollectionViewType.Freeform || this.collectionViewType === CollectionViewType.Invalid)) {
let zoom = NumCast(this.props.Document.scale, 1);
// Doc.GetProto(doc).zoomBasis = zoom;
}
}
return true;
}
@action.bound
removeDocument(doc: Doc): boolean {
SelectionManager.DeselectAll();
const props = this.props;
//TODO This won't create the field if it doesn't already exist
const value = Cast(props.Document[props.fieldKey], listSpec(Doc), []);
let index = -1;
for (let i = 0; i < value.length; i++) {
let v = value[i];
if (v instanceof Doc && v[Id] === doc[Id]) {
index = i;
break;
}
}
PromiseValue(Cast(doc.annotationOn, Doc)).then((annotationOn) => {
if (annotationOn === props.Document) {
doc.annotationOn = undefined;
}
});
if (index !== -1) {
value.splice(index, 1);
// SelectionManager.DeselectAll()
ContextMenu.Instance.clearItems();
return true;
}
return false;
}
@action.bound
moveDocument(doc: Doc, targetCollection: Doc, addDocument: (doc: Doc) => boolean): boolean {
if (this.props.Document === targetCollection) {
return true;
}
if (this.removeDocument(doc)) {
SelectionManager.DeselectAll();
return addDocument(doc);
}
return false;
}
render() {
const props: CollectionRenderProps = {
addDocument: this.addDocument,
removeDocument: this.removeDocument,
moveDocument: this.moveDocument,
active: this.active,
whenActiveChanged: this.whenActiveChanged,
};
const viewtype = this.collectionViewType;
return (
<div className={this.props.className || "collectionView-cont"}
style={{ borderRadius: "inherit", pointerEvents: "all" }}
onContextMenu={this.props.onContextMenu} ref={this.props.contentRef}>
{viewtype !== undefined ? this.props.children(viewtype, props) : (null)}
</div>
);
}
}
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