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import React = require("react");
import { action, computed, IReactionDisposer, reaction, trace } from "mobx";
import { observer } from "mobx-react";
import { Doc, HeightSym, WidthSym } from "../../../new_fields/Doc";
import { Id } from "../../../new_fields/FieldSymbols";
import { BoolCast, NumCast } from "../../../new_fields/Types";
import { emptyFunction, returnOne, Utils } from "../../../Utils";
import { SelectionManager } from "../../util/SelectionManager";
import { undoBatch } from "../../util/UndoManager";
import { DocumentView } from "../nodes/DocumentView";
import { CollectionSchemaPreview } from "./CollectionSchemaView";
import "./CollectionStackingView.scss";
import { CollectionSubView } from "./CollectionSubView";
import { ContextMenu } from "../ContextMenu";
@observer
export class CollectionStackingView extends CollectionSubView(doc => doc) {
_masonryGridRef: HTMLDivElement | null = null;
_heightDisposer?: IReactionDisposer;
_gridSize = 1;
@computed get xMargin() { return NumCast(this.props.Document.xMargin, 2 * this.gridGap); }
@computed get yMargin() { return NumCast(this.props.Document.yMargin, 2 * this.gridGap); }
@computed get gridGap() { return NumCast(this.props.Document.gridGap, 10); }
@computed get singleColumn() { return BoolCast(this.props.Document.singleColumn, true); }
@computed get columnWidth() { return this.singleColumn ? this.props.PanelWidth() - 2 * this.xMargin : Math.min(this.props.PanelWidth() - 2 * this.xMargin, NumCast(this.props.Document.columnWidth, 250)); }
singleColDocHeight(d: Doc) {
let nw = NumCast(d.nativeWidth);
let nh = NumCast(d.nativeHeight);
let aspect = nw && nh ? nh / nw : 1;
let wid = Math.min(d[WidthSym](), this.columnWidth);
return (nw && nh) ? wid * aspect : d[HeightSym]();
}
componentDidMount() {
this._heightDisposer = reaction(() => [this.yMargin, this.gridGap, this.columnWidth, this.childDocs.map(d => [d.height, d.width, d.zoomBasis, d.nativeHeight, d.nativeWidth, d.isMinimized])],
() => {
if (this.singleColumn) {
let children = this.childDocs.filter(d => !d.isMinimized);
this.props.Document.height = children.reduce((height, d, i) =>
height + this.singleColDocHeight(d) + (i === children.length - 1 ? this.yMargin : this.gridGap)
, this.yMargin);
}
}, { fireImmediately: true });
}
componentWillUnmount() {
if (this._heightDisposer) this._heightDisposer();
}
@action
moveDocument = (doc: Doc, targetCollection: Doc, addDocument: (document: Doc) => boolean): boolean => {
this.props.removeDocument(doc);
addDocument(doc);
return true;
}
getDocTransform(doc: Doc, dref: HTMLDivElement) {
let { scale, translateX, translateY } = Utils.GetScreenTransform(dref);
let outerXf = Utils.GetScreenTransform(this._masonryGridRef!);
let offset = this.props.ScreenToLocalTransform().transformDirection(outerXf.translateX - translateX, outerXf.translateY - translateY);
return this.props.ScreenToLocalTransform().translate(offset[0], offset[1]).scale(NumCast(doc.width, 1) / this.columnWidth);
}
createRef = (ele: HTMLDivElement | null) => {
this._masonryGridRef = ele;
this.createDropTarget(ele!);
}
@undoBatch
@action
public collapseToPoint = (scrpt: number[], expandedDocs: Doc[] | undefined): void => {
SelectionManager.DeselectAll();
if (expandedDocs) {
let isMinimized: boolean | undefined;
expandedDocs.map(d => Doc.GetProto(d)).map(maximizedDoc => {
if (isMinimized === undefined) {
isMinimized = BoolCast(maximizedDoc.isMinimized, false);
}
maximizedDoc.isMinimized = !isMinimized;
});
}
}
@computed
get singleColumnChildren() {
let children = this.childDocs.filter(d => !d.isMinimized);
return children.map((d, i) => {
let dref = React.createRef<HTMLDivElement>();
let script = undefined;
let colWidth = () => d.nativeWidth ? Math.min(d[WidthSym](), this.columnWidth) : this.columnWidth;
let rowHeight = () => this.singleColDocHeight(d);
let dxf = () => this.getDocTransform(d, dref.current!).scale(this.columnWidth / d[WidthSym]());
return <div className="collectionStackingView-masonryDoc"
key={d[Id]}
ref={dref}
style={{ width: colWidth(), height: rowHeight(), marginLeft: "auto", marginRight: "auto" }} >
<CollectionSchemaPreview
Document={d}
width={colWidth}
height={rowHeight}
getTransform={dxf}
CollectionView={this.props.CollectionView}
addDocument={this.props.addDocument}
removeDocument={this.props.removeDocument}
active={this.props.active}
whenActiveChanged={this.props.whenActiveChanged}
addDocTab={this.props.addDocTab}
setPreviewScript={emptyFunction}
previewScript={script}>
</CollectionSchemaPreview>
</div>;
});
}
@computed
get children() {
return this.childDocs.filter(d => !d.isMinimized).map((d, i) => {
let dref = React.createRef<HTMLDivElement>();
let dxf = () => this.getDocTransform(d, dref.current!);
let rowSpan = Math.ceil((this.columnWidth / d[WidthSym]() * d[HeightSym]() + this.gridGap) / (this._gridSize + this.gridGap));
let childFocus = (doc: Doc) => {
doc.libraryBrush = true;
this.props.focus(this.props.Document); // just focus on this collection, not the underlying document because the API doesn't support adding an offset to focus on and we can't pan zoom our contents to be centered.
}
return (<div className="collectionStackingView-masonryDoc"
key={d[Id]}
ref={dref}
style={{
width: NumCast(d.nativeWidth, d[WidthSym]()),
height: NumCast(d.nativeHeight, d[HeightSym]()),
transformOrigin: "top left",
gridRowEnd: `span ${rowSpan}`,
gridColumnEnd: `span 1`,
transform: `scale(${this.columnWidth / NumCast(d.nativeWidth, d[WidthSym]())}, ${this.columnWidth / NumCast(d.nativeWidth, d[WidthSym]())})`
}} >
<DocumentView key={d[Id]} Document={d}
addDocument={this.props.addDocument}
removeDocument={this.props.removeDocument}
moveDocument={this.moveDocument}
ContainingCollectionView={this.props.CollectionView}
isTopMost={false}
ScreenToLocalTransform={dxf}
focus={childFocus}
ContentScaling={returnOne}
PanelWidth={d[WidthSym]}
PanelHeight={d[HeightSym]}
selectOnLoad={false}
parentActive={this.props.active}
addDocTab={this.props.addDocTab}
bringToFront={emptyFunction}
whenActiveChanged={this.props.whenActiveChanged}
collapseToPoint={this.collapseToPoint}
/>
</div>);
})
}
onContextMenu = (e: React.MouseEvent): void => {
if (!e.isPropagationStopped() && this.props.Document[Id] !== "mainDoc") { // need to test this because GoldenLayout causes a parallel hierarchy in the React DOM for its children and the main document view7
ContextMenu.Instance.addItem({
description: "Toggle multi-column",
event: () => this.props.Document.singleColumn = !BoolCast(this.props.Document.singleColumn, true), icon: "file-pdf"
});
}
}
render() {
let cols = this.singleColumn ? 1 : Math.max(1, Math.min(this.childDocs.filter(d => !d.isMinimized).length,
Math.floor((this.props.PanelWidth() - 2 * this.xMargin) / (this.columnWidth + this.gridGap))));
let templatecols = "";
for (let i = 0; i < cols; i++) templatecols += `${this.columnWidth}px `;
return (
<div className="collectionStackingView">
<div className={`collectionStackingView-masonry${this.singleColumn ? "Single" : "Grid"}`}
onContextMenu={this.onContextMenu}
ref={this.createRef} onWheel={(e: React.WheelEvent) => e.stopPropagation()}
style={{
padding: this.singleColumn ? `${this.yMargin}px ${this.xMargin}px ${this.yMargin}px ${this.xMargin}px` : `${this.yMargin}px ${this.xMargin}px`,
margin: "auto",
width: this.singleColumn ? undefined : `${cols * (this.columnWidth + this.gridGap) + 2 * this.xMargin - this.gridGap}px`,
height: "100%",
position: "relative",
gridGap: this.gridGap,
gridTemplateColumns: this.singleColumn ? undefined : templatecols,
gridAutoRows: this.singleColumn ? undefined : `${this._gridSize}px`
}}
>
{this.singleColumn ? this.singleColumnChildren : this.children}
</div></div>
);
}
}
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