From 26cd0fb5b14ef0fac6f09228bbca6e16013506e8 Mon Sep 17 00:00:00 2001
From: bobzel <zzzman@gmail.com>
Date: Thu, 26 Aug 2021 12:08:30 -0400
Subject: allowed tree views to be scaled which makes slides work in lightbox.

---
 src/client/views/collections/CollectionTreeView.tsx | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

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

diff --git a/src/client/views/collections/CollectionTreeView.tsx b/src/client/views/collections/CollectionTreeView.tsx
index e36835893..e94268204 100644
--- a/src/client/views/collections/CollectionTreeView.tsx
+++ b/src/client/views/collections/CollectionTreeView.tsx
@@ -61,7 +61,9 @@ export class CollectionTreeView extends CollectionSubView<Document, Partial<coll
             this.props.isSelected(outsideReaction) || this._isAnyChildContentActive ||
             this.props.rootSelected(outsideReaction)) ? true : false)
 
+    isDisposing = false;
     componentWillUnmount() {
+        this.isDisposing = true;
         super.componentWillUnmount();
         this.treedropDisposer?.();
         Object.values(this._disposers).forEach(disposer => disposer?.());
@@ -76,6 +78,7 @@ export class CollectionTreeView extends CollectionSubView<Document, Partial<coll
     refList: Set<any> = new Set();
     observer: any;
     computeHeight = () => {
+        if (this.isDisposing) return;
         const bodyHeight = Array.from(this.refList).reduce((p, r) => p + Number(getComputedStyle(r).height.replace("px", "")), this.paddingTop() + this.paddingBot());
         this.layoutDoc._autoHeightMargins = bodyHeight;
         this.props.setHeight(this.documentTitleHeight() + bodyHeight);
@@ -269,7 +272,16 @@ export class CollectionTreeView extends CollectionSubView<Document, Partial<coll
             </button>
         </div >;
     }
+    @computed get nativeWidth() { return Doc.NativeWidth(this.Document, undefined, true); }
+    @computed get nativeHeight() { return Doc.NativeHeight(this.Document, undefined, true); }
 
+    @computed get contentScaling() {
+        const nw = this.nativeWidth;
+        const nh = this.nativeHeight;
+        const hscale = nh ? this.props.PanelHeight() / nh : 1;
+        const wscale = nw ? this.props.PanelWidth() / nw : 1;
+        return wscale < hscale ? wscale : hscale;
+    }
     paddingX = () => NumCast(this.doc._xPadding, 15);
     paddingTop = () => NumCast(this.doc._yPadding, 20);
     paddingBot = () => NumCast(this.doc._yPadding, 20);
@@ -278,14 +290,17 @@ export class CollectionTreeView extends CollectionSubView<Document, Partial<coll
     titleTransform = () => this.props.ScreenToLocalTransform().translate(-NumCast(this.doc._xPadding, 10), -NumCast(this.doc._yPadding, 20));
     truncateTitleWidth = () => this.treeViewtruncateTitleWidth;
     onChildClick = () => this.props.onChildClick?.() || ScriptCast(this.doc.onChildClick);
-    panelWidth = () => this.props.PanelWidth() - 2 * this.paddingX();
+    panelWidth = () => (this.props.PanelWidth() - 2 * this.paddingX()) * (this.props.scaling?.() || 1);
     render() {
         TraceMobx();
         const background = () => this.props.styleProvider?.(this.doc, this.props, StyleProp.BackgroundColor);
         const pointerEvents = () => !this.props.isContentActive() && !SnappingManager.GetIsDragging() ? "none" : undefined;
 
         return !(this.doc instanceof Doc) || !this.treeChildren ? (null) :
-            <div className="collectionTreeView-container" onContextMenu={this.onContextMenu}>
+            <div className="collectionTreeView-container"
+                style={{ transform: `scale(${this.contentScaling})`, transformOrigin: "top left" }}
+
+                onContextMenu={this.onContextMenu}>
                 <div className="collectionTreeView-dropTarget"
                     style={{ background: background(), paddingLeft: `${this.paddingX()}px`, paddingRight: `${this.paddingX()}px`, paddingBottom: `${this.paddingBot()}px`, paddingTop: `${this.paddingTop()}px`, pointerEvents: pointerEvents() }}
                     onWheel={e => e.stopPropagation()}
-- 
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