From c5c511fe51e858ca52615aaedb193dc947b90932 Mon Sep 17 00:00:00 2001
From: bobzel <zzzman@gmail.com>
Date: Fri, 29 Sep 2023 10:37:14 -0400
Subject: fixed autoHeight text scrolling in its own tab and elsewhere.  update
 ChildDrag to GroupChildDrag and simplified documentView code.  fixed
 MapAnchorMenu to allow linking by dragging text icon.

---
 .../collectionFreeForm/CollectionFreeFormView.tsx  | 75 ++++++----------------
 1 file changed, 18 insertions(+), 57 deletions(-)

(limited to 'src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx')

diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
index a64ccbb2c..676e96714 100644
--- a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
@@ -124,7 +124,7 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
     @observable _timelineRef = React.createRef<Timeline>();
     @observable _marqueeRef: HTMLDivElement | null = null;
     @observable _marqueeViewRef = React.createRef<MarqueeView>();
-    @observable ChildDrag: DocumentView | undefined; // child document view being dragged.  needed to update drop areas of groups when a group item is dragged.
+    @observable GroupChildDrag: boolean = false; // child document view being dragged.  needed to update drop areas of groups when a group item is dragged.
     @observable _brushedView = { width: 0, height: 0, panX: 0, panY: 0, opacity: 0 }; // highlighted region of freeform canvas used by presentations to indicate a region
 
     constructor(props: any) {
@@ -342,7 +342,6 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
 
     @action
     internalDocDrop(e: Event, de: DragManager.DropEvent, docDragData: DragManager.DocumentDragData, xp: number, yp: number) {
-        if (!de.embedKey && !this.ChildDrag && this.rootDoc._isGroup) return false;
         if (!super.onInternalDrop(e, de)) return false;
         const refDoc = docDragData.droppedDocuments[0];
         const [xpo, ypo] = this.getContainerTransform().transformPoint(de.x, de.y);
@@ -1763,17 +1762,24 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
     @undoBatch
     toggleNativeDimensions = () => Doc.toggleNativeDimensions(this.layoutDoc, 1, this.nativeWidth, this.nativeHeight);
 
+    ///
+    /// resetView restores a freeform collection to unit scale and centered at (0,0)  UNLESS
+    ///  the view is a group, in which case this does nothing (since Groups calculate their own scale and center)
+    ///
+    @undoBatch
+    resetView = () => {
+        if (!this.props.Document._isGroup) {
+            this.props.Document[this.panXFieldKey] = this.props.Document[this.panYFieldKey] = 0;
+            this.props.Document[this.scaleFieldKey] = 1;
+        }
+    };
+
     onContextMenu = (e: React.MouseEvent) => {
         if (this.props.isAnnotationOverlay || !ContextMenu.Instance) return;
 
         const appearance = ContextMenu.Instance.findByDescription('Appearance...');
         const appearanceItems = appearance && 'subitems' in appearance ? appearance.subitems : [];
-        !this.props.Document._isGroup &&
-            appearanceItems.push({
-                description: 'Reset View',
-                event: () => CollectionFreeFormView.ResetView(this),
-                icon: 'compress-arrows-alt',
-            });
+        !this.props.Document._isGroup && appearanceItems.push({ description: 'Reset View', event: this.resetView, icon: 'compress-arrows-alt' });
         !Doc.noviceMode &&
             appearanceItems.push({
                 description: 'Toggle auto arrange',
@@ -1975,15 +1981,6 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
     }
     nativeDim = () => this.nativeDimScaling;
 
-    private groupDropDisposer?: DragManager.DragDropDisposer;
-    protected createGroupEventsTarget = (ele: HTMLDivElement) => {
-        //used for stacking and masonry view
-        this.groupDropDisposer?.();
-        if (ele) {
-            this.groupDropDisposer = DragManager.MakeDropTarget(ele, this.onInternalDrop.bind(this), this.layoutDoc, this.onInternalPreDrop.bind(this));
-        }
-    };
-
     @action
     brushView = (viewport: { width: number; height: number; panX: number; panY: number }, transTime: number) => {
         this._brushtimer1 && clearTimeout(this._brushtimer1);
@@ -2068,51 +2065,18 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
                         {/* // uncomment to show snap lines */}
                         <div className="snapLines" style={{ position: 'absolute', top: 0, left: 0, width: '100%', height: '100%', pointerEvents: 'none' }}>
                             <svg style={{ width: '100%', height: '100%' }}>
-                                {this._hLines?.map(l => (
-                                    <line x1="0" y1={l} x2="1000" y2={l} stroke="black" />
-                                ))}
-                                {this._vLines?.map(l => (
-                                    <line y1="0" x1={l} y2="1000" x2={l} stroke="black" />
-                                ))}
+                                {(this._hLines ?? [])
+                                    .map(l => <line x1="0" y1={l} x2="1000" y2={l} stroke="black" />) //
+                                    .concat((this._vLines ?? []).map(l => <line y1="0" x1={l} y2="1000" x2={l} stroke="black" />)) ?? []}
                             </svg>
                         </div>
 
-                        {this.props.Document._isGroup && SnappingManager.GetIsDragging() && this.ChildDrag ? (
-                            <div
-                                className="collectionFreeForm-groupDropper"
-                                ref={this.createGroupEventsTarget}
-                                style={{
-                                    width: this.ChildDrag ? '10000' : '100%',
-                                    height: this.ChildDrag ? '10000' : '100%',
-                                    left: this.ChildDrag ? '-5000' : 0,
-                                    top: this.ChildDrag ? '-5000' : 0,
-                                    position: 'absolute',
-                                    background: '#0009930',
-                                    pointerEvents: 'all',
-                                }}
-                            />
-                        ) : null}
+                        {this.GroupChildDrag ? <div className="collectionFreeForm-groupDropper" /> : null}
                     </>
                 )}
             </div>
         );
     }
-    /// resetView restores a freeform collection to unit scale and centered at (0,0)  UNLESS
-    //  the view is a group, in which case this does nothing (since Groups calculate their own scale and center)
-    static ResetView(view?: CollectionFreeFormView) {
-        if (view) {
-            if (view.props.Document._isGroup) return;
-            view.props.Document[view.panXFieldKey] = view.props.Document[view.panYFieldKey] = 0;
-            view.props.Document[view.scaleFieldKey] = 1;
-        } else {
-            SelectionManager.Docs()
-                .filter(doc => !doc._isGroup)
-                .forEach(doc => {
-                    doc._freeform_panX = doc._freeform_panY = 0;
-                    doc._freeform_scale = 1;
-                });
-        }
-    }
 }
 
 interface CollectionFreeFormOverlayViewProps {
@@ -2358,6 +2322,3 @@ ScriptingGlobals.add(function bringToFront() {
 ScriptingGlobals.add(function sendToBack(doc: Doc) {
     SelectionManager.Views().forEach(view => view.props.CollectionFreeFormDocumentView?.().props.CollectionFreeFormView.bringToFront(view.rootDoc, true));
 });
-ScriptingGlobals.add(function resetView() {
-    CollectionFreeFormView.ResetView();
-});
-- 
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