Merge branch 'master' of github-tsch-brown:browngraphicslab/Dash-Web

1 files changed, 202 insertions, 0 deletions

diff --git a/src/views/collections/CollectionFreeFormView.tsx b/src/views/collections/CollectionFreeFormView.tsx
new file mode 100644
index 000000000..736bcb786
--- /dev/null
+++ b/src/views/collections/CollectionFreeFormView.tsx
@@ -0,0 +1,202 @@
+import { observer } from "mobx-react";
+import { Key, KeyStore } from "../../fields/Key";
+import React = require("react");
+import { action, observable, computed } from "mobx";
+import { Document } from "../../fields/Document";
+import { DocumentView, CollectionViewProps } from "../nodes/DocumentView";
+import { ListField } from "../../fields/ListField";
+import { NumberField } from "../../fields/NumberField";
+import { SSL_OP_SINGLE_DH_USE } from "constants";
+import { SelectionManager } from "../../util/SelectionManager";
+import { Documents } from "../../documents/Documents";
+import { ContextMenu } from "../ContextMenu";
+import { DragManager } from "../../util/DragManager";
+import "./CollectionFreeFormView.scss";
+import { Utils } from "../../Utils";
+import { CollectionDockingView } from "./CollectionDockingView";
+
+@observer
+export class CollectionFreeFormView extends React.Component<CollectionViewProps> {
+    private _containerRef = React.createRef<HTMLDivElement>();
+    private _canvasRef = React.createRef<HTMLDivElement>();
+
+    constructor(props: CollectionViewProps) {
+        super(props);
+    }
+
+    public static BORDER_WIDTH = 2;
+
+    @computed
+    public get active(): boolean {
+        var isSelected = (this.props.ContainingDocumentView != undefined && SelectionManager.IsSelected(this.props.ContainingDocumentView));
+        var childSelected = SelectionManager.SelectedDocuments().some(view => view.props.ContainingCollectionView == this);
+        var topMost = this.props.ContainingDocumentView != undefined && (
+            this.props.ContainingDocumentView.props.ContainingCollectionView == undefined ||
+            this.props.ContainingDocumentView.props.ContainingCollectionView instanceof CollectionDockingView);
+        return isSelected || childSelected || topMost;
+    }
+
+    drop = (e: Event, de: DragManager.DropEvent) => {
+        const doc = de.data[ "document" ];
+        if (doc instanceof DocumentView) {
+            if (doc.props.ContainingCollectionView && doc.props.ContainingCollectionView !== this) {
+                doc.props.ContainingCollectionView.removeDocument(doc.props.Document);
+                this.addDocument(doc.props.Document);
+            }
+            const xOffset = de.data[ "xOffset" ] as number || 0;
+            const yOffset = de.data[ "yOffset" ] as number || 0;
+            let { LocalX, LocalY } = this.props.ContainingDocumentView!.TransformToLocalPoint(de.x - xOffset, de.y - yOffset);
+            doc.x = LocalX;
+            doc.y = LocalY;
+        }
+        e.stopPropagation();
+    }
+
+    componentDidMount() {
+        if (this._containerRef.current) {
+            DragManager.MakeDropTarget(this._containerRef.current, {
+                handlers: {
+                    drop: this.drop
+                }
+            });
+        }
+    }
+
+    _lastX: number = 0;
+    _lastY: number = 0;
+    @action
+    onPointerDown = (e: React.PointerEvent): void => {
+        if (e.button === 2 && this.active) {
+            e.stopPropagation();
+            e.preventDefault();
+            document.removeEventListener("pointermove", this.onPointerMove);
+            document.addEventListener("pointermove", this.onPointerMove);
+            document.removeEventListener("pointerup", this.onPointerUp);
+            document.addEventListener("pointerup", this.onPointerUp);
+            this._lastX = e.pageX;
+            this._lastY = e.pageY;
+        }
+    }
+
+    @action
+    onPointerUp = (e: PointerEvent): void => {
+        document.removeEventListener("pointermove", this.onPointerMove);
+        document.removeEventListener("pointerup", this.onPointerUp);
+        e.stopPropagation();
+    }
+
+    @action
+    onPointerMove = (e: PointerEvent): void => {
+        if (!e.cancelBubble) {
+            e.preventDefault();
+            e.stopPropagation();
+            let currScale: number = this.props.ContainingDocumentView!.ScalingToScreenSpace;
+            let x = this.props.Document.GetFieldValue(KeyStore.PanX, NumberField, Number(0));
+            let y = this.props.Document.GetFieldValue(KeyStore.PanY, NumberField, Number(0));
+            this.props.Document.SetFieldValue(KeyStore.PanX, x + (e.pageX - this._lastX) / currScale, NumberField);
+            this.props.Document.SetFieldValue(KeyStore.PanY, y + (e.pageY - this._lastY) / currScale, NumberField);
+            this._lastX = e.pageX;
+            this._lastY = e.pageY;
+        }
+    }
+
+    @action
+    onPointerWheel = (e: React.WheelEvent): void => {
+        e.stopPropagation();
+
+        let { LocalX, Ss, Panxx, Xx, LocalY, Panyy, Yy, ContainerX, ContainerY } = this.props.ContainingDocumentView!.TransformToLocalPoint(e.pageX, e.pageY);
+
+        var deltaScale = (1 - (e.deltaY / 1000)) * Ss;
+
+        var newContainerX = LocalX * deltaScale + Panxx + Xx;
+        var newContainerY = LocalY * deltaScale + Panyy + Yy;
+
+        let dx = ContainerX - newContainerX;
+        let dy = ContainerY - newContainerY;
+
+        this.props.Document.SetField(KeyStore.Scale, new NumberField(deltaScale));
+        this.props.Document.SetFieldValue(KeyStore.PanX, Panxx + dx, NumberField);
+        this.props.Document.SetFieldValue(KeyStore.PanY, Panyy + dy, NumberField);
+    }
+
+    onDrop = (e: React.DragEvent): void => {
+        e.stopPropagation()
+        e.preventDefault()
+        let fReader = new FileReader()
+        let file = e.dataTransfer.items[ 0 ].getAsFile();
+        let that = this;
+        const panx: number = this.props.Document.GetFieldValue(KeyStore.PanX, NumberField, Number(0));
+        const pany: number = this.props.Document.GetFieldValue(KeyStore.PanY, NumberField, Number(0));
+        let x = e.pageX - panx
+        let y = e.pageY - pany
+
+        fReader.addEventListener("load", action("drop", (event) => {
+            if (fReader.result) {
+                let url = "" + fReader.result;
+                let doc = Documents.ImageDocument(url, {
+                    x: x, y: y
+                })
+                let docs = that.props.Document.GetFieldT(KeyStore.Data, ListField);
+                if (!docs) {
+                    docs = new ListField<Document>();
+                    that.props.Document.SetField(KeyStore.Data, docs)
+                }
+                docs.Data.push(doc);
+            }
+        }), false)
+
+        if (file) {
+            fReader.readAsDataURL(file)
+        }
+    }
+
+    @action
+    addDocument = (doc: Document): void => {
+        //TODO This won't create the field if it doesn't already exist
+        const value = this.props.Document.GetFieldValue(this.props.fieldKey, ListField, new Array<Document>())
+        value.push(doc);
+    }
+
+    @action
+    removeDocument = (doc: Document): void => {
+        //TODO This won't create the field if it doesn't already exist
+        const value = this.props.Document.GetFieldValue(this.props.fieldKey, ListField, new Array<Document>())
+        if (value.indexOf(doc) !== -1) {
+            value.splice(value.indexOf(doc), 1)
+
+            SelectionManager.DeselectAll()
+            ContextMenu.Instance.clearItems()
+        }
+    }
+
+    onDragOver = (e: React.DragEvent): void => {
+    }
+    render() {
+        const { fieldKey, Document: Document } = this.props;
+
+        const value: Document[] = Document.GetFieldValue(fieldKey, ListField, []);
+        const panx: number = Document.GetFieldValue(KeyStore.PanX, NumberField, Number(0));
+        const pany: number = Document.GetFieldValue(KeyStore.PanY, NumberField, Number(0));
+        const currScale: number = Document.GetFieldValue(KeyStore.Scale, NumberField, Number(1));
+        return (
+            <div className="border" style={{
+                borderStyle: "solid",
+                borderWidth: `${CollectionFreeFormView.BORDER_WIDTH}px`,
+            }}>
+                <div className="collectionfreeformview-container" onPointerDown={this.onPointerDown} onWheel={this.onPointerWheel} onContextMenu={(e) => e.preventDefault()} style={{
+                    width: "100%",
+                    height: `calc(100% - 2*${CollectionFreeFormView.BORDER_WIDTH}px)`,
+                }} onDrop={this.onDrop} onDragOver={this.onDragOver} ref={this._containerRef}>
+                    <div className="collectionfreeformview" style={{ transform: `translate(${panx}px, ${pany}px) scale(${currScale}, ${currScale})`, transformOrigin: `left, top` }} ref={this._canvasRef}>
+
+                        <div className="node-container">
+                            {value.map(doc => {
+                                return (<DocumentView key={doc.Id} ContainingCollectionView={this} Document={doc} ContainingDocumentView={this.props.ContainingDocumentView} />);
+                            })}
+                        </div>
+                    </div>
+                </div>
+            </div>
+        );
+    }
+}
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