From 37cc69bcc8be3a6b160c45e5c16f969bd593fa88 Mon Sep 17 00:00:00 2001
From: bobzel <zzzman@gmail.com>
Date: Mon, 16 Oct 2023 10:58:24 -0400
Subject: added auto reset view option for collections.

---
 .../collectionFreeForm/CollectionFreeFormView.tsx  | 36 +++++++++++++++-------
 src/client/views/nodes/DocumentView.tsx            |  2 +-
 2 files changed, 26 insertions(+), 12 deletions(-)

(limited to 'src')

diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
index 407f18d62..3f23ee15a 100644
--- a/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormView.tsx
@@ -109,6 +109,9 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
     private get panYFieldKey() {
         return (this.props.viewField ?? '') + '_freeform_panY';
     }
+    private get autoResetFieldKey() {
+        return (this.props.viewField ?? '') + '_freeform_autoReset';
+    }
     private get borderWidth() {
         return this.isAnnotationOverlay ? 0 : COLLECTION_BORDER_WIDTH;
     }
@@ -1619,6 +1622,11 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
                     { fireImmediately: true, name: 'doLayout' }
                 );
 
+                this._disposers.active = reaction(
+                    () => this.isContentActive(),
+                    active => this.rootDoc[this.autoResetFieldKey] && !active && this.resetView()
+                );
+
                 this._disposers.fitContent = reaction(
                     () => this.rootDoc.fitContentOnce,
                     fitContentOnce => {
@@ -1774,9 +1782,21 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
     ///
     @undoBatch
     resetView = () => {
-        if (!this.props.Document._isGroup) {
-            this.props.Document[this.panXFieldKey] = this.props.Document[this.panYFieldKey] = 0;
-            this.props.Document[this.scaleFieldKey] = 1;
+        this.rootDoc[this.panXFieldKey] = NumCast(this.rootDoc[this.panXFieldKey + '_reset']);
+        this.props.Document[this.panYFieldKey] = NumCast(this.rootDoc[this.panYFieldKey + '_reset']);
+        this.rootDoc[this.scaleFieldKey] = NumCast(this.rootDoc[this.scaleFieldKey + '_reset'], 1);
+    };
+    ///
+    /// 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
+    toggleResetView = () => {
+        this.rootDoc[this.autoResetFieldKey] = !this.rootDoc[this.autoResetFieldKey];
+        if (this.rootDoc[this.autoResetFieldKey]) {
+            this.rootDoc[this.panXFieldKey + '_reset'] = this.rootDoc[this.panXFieldKey];
+            this.rootDoc[this.panYFieldKey + '_reset'] = this.rootDoc[this.panYFieldKey];
+            this.rootDoc[this.scaleFieldKey + '_reset'] = this.rootDoc[this.scaleFieldKey];
         }
     };
 
@@ -1786,6 +1806,7 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
         const appearance = ContextMenu.Instance.findByDescription('Appearance...');
         const appearanceItems = appearance && 'subitems' in appearance ? appearance.subitems : [];
         !this.props.Document._isGroup && appearanceItems.push({ description: 'Reset View', event: this.resetView, icon: 'compress-arrows-alt' });
+        !this.props.Document._isGroup && appearanceItems.push({ description: 'Toggle Auto Reset View', event: this.toggleResetView, icon: 'compress-arrows-alt' });
         !Doc.noviceMode &&
             appearanceItems.push({
                 description: 'Toggle auto arrange',
@@ -1822,14 +1843,7 @@ export class CollectionFreeFormView extends CollectionSubView<Partial<collection
             !Doc.noviceMode &&
             optionItems.push({ description: (this._showAnimTimeline ? 'Close' : 'Open') + ' Animation Timeline', event: action(() => (this._showAnimTimeline = !this._showAnimTimeline)), icon: 'eye' });
         this.props.renderDepth && optionItems.push({ description: 'Use Background Color as Default', event: () => (Cast(Doc.UserDoc().emptyCollection, Doc, null)._backgroundColor = StrCast(this.layoutDoc._backgroundColor)), icon: 'palette' });
-        this.props.renderDepth &&
-            optionItems.push({
-                description: 'Fit Content Once',
-                event: () => {
-                    this.fitContentOnce();
-                },
-                icon: 'object-group',
-            });
+        this.props.renderDepth && optionItems.push({ description: 'Fit Content Once', event: this.fitContentOnce, icon: 'object-group' });
         if (!Doc.noviceMode) {
             optionItems.push({ description: (!Doc.NativeWidth(this.layoutDoc) || !Doc.NativeHeight(this.layoutDoc) ? 'Freeze' : 'Unfreeze') + ' Aspect', event: this.toggleNativeDimensions, icon: 'snowflake' });
         }
diff --git a/src/client/views/nodes/DocumentView.tsx b/src/client/views/nodes/DocumentView.tsx
index e8c33a10e..96d3adff5 100644
--- a/src/client/views/nodes/DocumentView.tsx
+++ b/src/client/views/nodes/DocumentView.tsx
@@ -114,7 +114,7 @@ export interface DocComponentView {
     getAnchor?: (addAsAnnotation: boolean, pinData?: PinProps) => Doc; // returns an Anchor Doc that represents the current state of the doc's componentview (e.g., the current playhead location of a an audio/video box)
     restoreView?: (viewSpec: Doc) => boolean;
     scrollPreview?: (docView: DocumentView, doc: Doc, focusSpeed: number, options: DocFocusOptions) => Opt<number>; // returns the duration of the focus
-    brushView?: (view: { width: number; height: number; panX: number; panY: number }, transTime: number) => void;
+    brushView?: (view: { width: number; height: number; panX: number; panY: number }, transTime: number) => void; // highlight a region of a view (used by freeforms)
     getView?: (doc: Doc) => Promise<Opt<DocumentView>>; // returns a nested DocumentView for the specified doc or undefined
     addDocTab?: (doc: Doc, where: OpenWhere) => boolean; // determines how to add a document - used in following links to open the target ina local lightbox
     addDocument?: (doc: Doc | Doc[], annotationKey?: string) => boolean; // add a document (used only by collections)
-- 
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