From 588e1edf046aea0f280117f4aaa5b9853258c05b Mon Sep 17 00:00:00 2001
From: bob <bcz@cs.brown.edu>
Date: Fri, 1 Feb 2019 14:36:41 -0500
Subject: fixed zordering of dragged items. image  lightbox shows on double tap
 now.

---
 src/fields/Key.ts                                |  1 +
 src/views/collections/CollectionFreeFormView.tsx | 21 ++++++++++++++++-
 src/views/nodes/DocumentView.tsx                 | 10 ++++++++
 src/views/nodes/ImageBox.tsx                     | 29 ++++++++++++++++++------
 4 files changed, 53 insertions(+), 8 deletions(-)

(limited to 'src')

diff --git a/src/fields/Key.ts b/src/fields/Key.ts
index 4da800fac..5cd43f55e 100644
--- a/src/fields/Key.ts
+++ b/src/fields/Key.ts
@@ -41,6 +41,7 @@ export namespace KeyStore {
     export const Scale = new Key("Scale");
     export const Width = new Key("Width");
     export const Height = new Key("Height");
+    export const ZIndex = new Key("ZIndex");
     export const Data = new Key("Data");
     export const Layout = new Key("Layout");
     export const LayoutKeys = new Key("LayoutKeys");
diff --git a/src/views/collections/CollectionFreeFormView.tsx b/src/views/collections/CollectionFreeFormView.tsx
index ffb39426d..24daa2fbc 100644
--- a/src/views/collections/CollectionFreeFormView.tsx
+++ b/src/views/collections/CollectionFreeFormView.tsx
@@ -19,6 +19,7 @@ import { CollectionDockingView } from "./CollectionDockingView";
 export class CollectionFreeFormView extends React.Component<CollectionViewProps> {
     private _containerRef = React.createRef<HTMLDivElement>();
     private _canvasRef = React.createRef<HTMLDivElement>();
+    private _nodeContainerRef = React.createRef<HTMLDivElement>();
 
     constructor(props: CollectionViewProps) {
         super(props);
@@ -51,10 +52,28 @@ export class CollectionFreeFormView extends React.Component<CollectionViewProps>
             const docY = (screenY - translateY) / sscale / scale;
             doc.x = docX;
             doc.y = docY;
+            this.bringToFront(doc);
         }
         e.stopPropagation();
     }
 
+    private bringToFront(doc: DocumentView) {
+        const { fieldKey, Document: Document } = this.props;
+
+        const value: Document[] = Document.GetListField<Document>(fieldKey, []);
+        var topmost = value.reduce((topmost, d) => Math.max(d.GetNumberField(KeyStore.ZIndex, 0), topmost), -1000);
+        value.map(d => {
+            var zind = d.GetNumberField(KeyStore.ZIndex, 0);
+            if (zind != topmost - 1 - (topmost - zind) && d != doc.props.Document) {
+                d.SetFieldValue(KeyStore.ZIndex, topmost - 1 - (topmost - zind), NumberField);
+            }
+        })
+
+        if (doc.props.Document.GetNumberField(KeyStore.ZIndex, 0) != 0) {
+            doc.props.Document.SetFieldValue(KeyStore.ZIndex, 0, NumberField);
+        }
+    }
+
     componentDidMount() {
         if (this._containerRef.current) {
             DragManager.MakeDropTarget(this._containerRef.current, {
@@ -191,7 +210,7 @@ export class CollectionFreeFormView extends React.Component<CollectionViewProps>
                 }} 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">
+                        <div className="node-container" ref={this._nodeContainerRef}>
                             {value.map(doc => {
                                 return (<DocumentView key={doc.Id} ContainingCollectionView={this} Document={doc} ContainingDocumentView={this.props.ContainingDocumentView} />);
                             })}
diff --git a/src/views/nodes/DocumentView.tsx b/src/views/nodes/DocumentView.tsx
index 34a95747b..560cc0ee0 100644
--- a/src/views/nodes/DocumentView.tsx
+++ b/src/views/nodes/DocumentView.tsx
@@ -154,6 +154,15 @@ export class DocumentView extends React.Component<DocumentViewProps> {
         this.props.Document.SetFieldValue(KeyStore.Height, h, NumberField)
     }
 
+    @computed
+    get zIndex(): number {
+        return this.props.Document.GetFieldValue(KeyStore.ZIndex, NumberField, Number(0));
+    }
+
+    set zIndex(h: number) {
+        this.props.Document.SetFieldValue(KeyStore.ZIndex, h, NumberField)
+    }
+
     @action
     dragComplete = (e: DragManager.DragCompleteEvent) => {
     }
@@ -359,6 +368,7 @@ export class DocumentView extends React.Component<DocumentViewProps> {
                 width: freestyling ? this.width : "100%",
                 height: freestyling ? this.height : "100%",
                 position: freestyling ? "absolute" : "relative",
+                zIndex: freestyling ? this.zIndex : 0,
             }}
                 onContextMenu={this.onContextMenu}
                 onPointerDown={this.onPointerDown}>
diff --git a/src/views/nodes/ImageBox.tsx b/src/views/nodes/ImageBox.tsx
index 4535cef98..ffdcbae05 100644
--- a/src/views/nodes/ImageBox.tsx
+++ b/src/views/nodes/ImageBox.tsx
@@ -33,13 +33,30 @@ export class ImageBox extends React.Component<DocumentFieldViewProps, ImageBoxSt
     componentWillUnmount() {
     }
 
+    _downX: number = 0;
+    _downY: number = 0;
+    _singleTap = false;
+    _lastTap: number = 0;
     onPointerDown = (e: React.PointerEvent): void => {
         const { containingDocumentView } = this.props;
-        this._wasSelected = SelectionManager.IsSelected(containingDocumentView);
-        let me = this;
-        if (e.buttons === 1 && SelectionManager.IsSelected(me.props.containingDocumentView)) {
-            e.stopPropagation();
+        if (Date.now() - this._lastTap < 300) {
+            if (e.buttons === 1 && SelectionManager.IsSelected(containingDocumentView)) {
+                e.stopPropagation();
+                this._downX = e.clientX;
+                this._downY = e.clientY;
+                document.removeEventListener("pointerup", this.onPointerUp);
+                document.addEventListener("pointerup", this.onPointerUp);
+            }
+        } else {
+            this._lastTap = Date.now();
+        }
+    }
+    onPointerUp = (e: PointerEvent): void => {
+        document.removeEventListener("pointerup", this.onPointerUp);
+        if (Math.abs(e.clientX - this._downX) < 2 && Math.abs(e.clientY - this._downY) < 2) {
+            this.setState({ isOpen: true })
         }
+        e.stopPropagation();
     }
 
     render() {
@@ -63,9 +80,7 @@ export class ImageBox extends React.Component<DocumentFieldViewProps, ImageBoxSt
         }
         return (
             <div className="imageBox-cont" onPointerDown={this.onPointerDown} ref={this._ref} >
-                <button className="imageBox-button" type="button" onClick={() => this.setState({ isOpen: this._wasSelected })}>
-                    <img src={images[0]} width="100%" alt="Image not found" />
-                </button>
+                <img src={images[0]} width="100%" alt="Image not found" />
                 {lightbox()}
             </div>)
     }
-- 
cgit v1.2.3-70-g09d2