From e6b882080471d915a80400e7e9a97ff78a232147 Mon Sep 17 00:00:00 2001
From: bobzel <zzzman@gmail.com>
Date: Wed, 18 May 2022 14:05:39 -0400
Subject: fixed linking bug so that both start and end link can be regions. 
 added zoom to target checkbox for link editing.  extracted out a new field
 pointerEvents so that lockPosition is not automatically conflratd with no
 pointer events.  updated freeformview focus to work with zooming on region
 selections.

---
 src/client/views/pdf/PDFViewer.tsx | 29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

(limited to 'src/client/views/pdf')

diff --git a/src/client/views/pdf/PDFViewer.tsx b/src/client/views/pdf/PDFViewer.tsx
index b0a5fc93b..305b1fe68 100644
--- a/src/client/views/pdf/PDFViewer.tsx
+++ b/src/client/views/pdf/PDFViewer.tsx
@@ -6,7 +6,6 @@ import { Doc, DocListCast, Field, HeightSym, Opt } from "../../../fields/Doc";
 import { Id } from "../../../fields/FieldSymbols";
 import { InkTool } from "../../../fields/InkField";
 import { Cast, NumCast, StrCast } from "../../../fields/Types";
-import { PdfField } from "../../../fields/URLField";
 import { TraceMobx } from "../../../fields/util";
 import { addStyleSheet, addStyleSheetRule, clearStyleSheetRules, emptyFunction, OmitKeys, returnFalse, smoothScroll, Utils } from "../../../Utils";
 import { DocUtils } from "../../documents/Documents";
@@ -59,7 +58,6 @@ export class PDFViewer extends React.Component<IViewerProps> {
     @observable private _marqueeing: number[] | undefined;
     @observable private _textSelecting = true;
     @observable private _showWaiting = true;
-    @observable private _zoomed = 1;
     @observable private _overlayAnnoInfo: Opt<Doc>;
     @observable private Index: number = -1;
 
@@ -70,6 +68,7 @@ export class PDFViewer extends React.Component<IViewerProps> {
     private _annotationLayer: React.RefObject<HTMLDivElement> = React.createRef();
     private _disposers: { [name: string]: IReactionDisposer } = {};
     private _viewer: React.RefObject<HTMLDivElement> = React.createRef();
+    public _getAnchor: (savedAnnotations?: ObservableMap<number, HTMLDivElement[]>) => Opt<Doc> = () => undefined;
     _mainCont: React.RefObject<HTMLDivElement> = React.createRef();
     private _selectionText: string = "";
     private _downX: number = 0;
@@ -184,7 +183,7 @@ export class PDFViewer extends React.Component<IViewerProps> {
 
     pagesinit = () => {
         if (this._pdfViewer._setDocumentViewerElement?.offsetParent) {
-            runInAction(() => this._pdfViewer.currentScaleValue = this._zoomed = 1);
+            runInAction(() => this._pdfViewer.currentScaleValue = this.props.layoutDoc._viewScale = 1);
             this.gotoPage(NumCast(this.props.Document._curPage, 1));
         }
         document.removeEventListener("pagesinit", this.pagesinit);
@@ -355,6 +354,7 @@ export class PDFViewer extends React.Component<IViewerProps> {
 
     @action
     finishMarquee = (x?: number, y?: number) => {
+        this._getAnchor = AnchorMenu.Instance?.GetAnchor;
         this.isAnnotating = false;
         this._marqueeing = undefined;
         this._textSelecting = true;
@@ -387,13 +387,14 @@ export class PDFViewer extends React.Component<IViewerProps> {
                 const rect = clientRects.item(i);
                 if (rect && rect.width !== this._mainCont.current.clientWidth && rect.width) {
                     const scaleX = this._mainCont.current.offsetWidth / boundingRect.width;
+                    const pdfScale = NumCast(this.props.layoutDoc._viewScale, 1);
                     const annoBox = document.createElement("div");
                     annoBox.className = "marqueeAnnotator-annotationBox";
                     // transforms the positions from screen onto the pdf div
-                    annoBox.style.top = ((rect.top - boundingRect.top) * scaleX / this._zoomed + this._mainCont.current.scrollTop).toString();
-                    annoBox.style.left = ((rect.left - boundingRect.left) * scaleX / this._zoomed).toString();
-                    annoBox.style.width = (rect.width * this._mainCont.current.offsetWidth / boundingRect.width / this._zoomed).toString();
-                    annoBox.style.height = (rect.height * this._mainCont.current.offsetHeight / boundingRect.height / this._zoomed).toString();
+                    annoBox.style.top = ((rect.top - boundingRect.top) * scaleX / pdfScale + this._mainCont.current.scrollTop).toString();
+                    annoBox.style.left = ((rect.left - boundingRect.left) * scaleX / pdfScale).toString();
+                    annoBox.style.width = (rect.width * this._mainCont.current.offsetWidth / boundingRect.width / pdfScale).toString();
+                    annoBox.style.height = (rect.height * this._mainCont.current.offsetHeight / boundingRect.height / pdfScale).toString();
                     this._annotationLayer.current && MarqueeAnnotator.previewNewAnnotation(this._savedAnnotations, this._annotationLayer.current, annoBox, this.getPageFromScroll(rect.top));
                 }
             }
@@ -430,14 +431,14 @@ export class PDFViewer extends React.Component<IViewerProps> {
             if (e.ctrlKey) {
                 const curScale = Number(this._pdfViewer.currentScaleValue);
                 this._pdfViewer.currentScaleValue = Math.max(1, Math.min(10, curScale - curScale * e.deltaY / 1000));
-                this._zoomed = Number(this._pdfViewer.currentScaleValue);
+                this.props.layoutDoc._viewScale = Number(this._pdfViewer.currentScaleValue);
             }
         }
     }
 
     pointerEvents = () => this.props.isContentActive() && this.props.pointerEvents?.() !== "none" && !MarqueeOptionsMenu.Instance.isShown() ? "all" : SnappingManager.GetIsDragging() ? undefined : "none";
     @computed get annotationLayer() {
-        return <div className="pdfViewerDash-annotationLayer" style={{ height: Doc.NativeHeight(this.props.Document), transform: `scale(${this._zoomed})` }} ref={this._annotationLayer}>
+        return <div className="pdfViewerDash-annotationLayer" style={{ height: Doc.NativeHeight(this.props.Document), transform: `scale(${NumCast(this.props.layoutDoc._viewScale, 1)})` }} ref={this._annotationLayer}>
             {this.inlineTextAnnotations.sort((a, b) => NumCast(a.y) - NumCast(b.y)).map(anno =>
                 <Annotation {...this.props} fieldKey={this.props.fieldKey + "-annotations"} pointerEvents={this.pointerEvents} showInfo={this.showInfo} dataDoc={this.props.dataDoc} anno={anno} key={`${anno[Id]}-annotation`} />)}
         </div>;
@@ -453,7 +454,7 @@ export class PDFViewer extends React.Component<IViewerProps> {
     }
 
     showInfo = action((anno: Opt<Doc>) => this._overlayAnnoInfo = anno);
-    overlayTransform = () => this.scrollXf().scale(1 / this._zoomed);
+    overlayTransform = () => this.scrollXf().scale(1 / NumCast(this.props.layoutDoc._viewScale, 1));
     panelWidth = () => this.props.PanelWidth() / (this.props.scaling?.() || 1); // (this.Document.scrollHeight || Doc.NativeHeight(this.Document) || 0);
     panelHeight = () => this.props.PanelHeight() / (this.props.scaling?.() || 1); // () => this._pageSizes.length && this._pageSizes[0] ? this._pageSizes[0].width : Doc.NativeWidth(this.Document);
     basicFilter = () => [...this.props.docFilters(), Utils.PropUnsetFilter("textInlineAnnotations")];
@@ -498,7 +499,7 @@ export class PDFViewer extends React.Component<IViewerProps> {
                 style={{
                     pointerEvents: SnappingManager.GetIsDragging() ? "all" : "none",
                     mixBlendMode: "multiply",
-                    transform: `scale(${this._zoomed})`
+                    transform: `scale(${NumCast(this.props.layoutDoc._viewScale, 1)})`
                 }}>
                 {this.overlayTransparentAnnotations}
             </div>
@@ -506,7 +507,7 @@ export class PDFViewer extends React.Component<IViewerProps> {
                 style={{
                     pointerEvents: SnappingManager.GetIsDragging() ? "all" : "none",
                     mixBlendMode: this.allAnnotations.some(anno => anno.mixBlendMode) ? "hard-light" : undefined,
-                    transform: `scale(${this._zoomed})`
+                    transform: `scale(${NumCast(this.props.layoutDoc._viewScale, 1)})`
                 }}>
                 {this.overlayOpaqueAnnotations}
                 {this.overlayClickableAnnotations}
@@ -517,7 +518,7 @@ export class PDFViewer extends React.Component<IViewerProps> {
         return <div className={"pdfViewerDash-text" + (this.props.pointerEvents?.() !== "none" && this._textSelecting && this.props.isContentActive() ? "-selected" : "")} ref={this._viewer} />;
     }
     @computed get contentScaling() { return this.props.ContentScaling?.() || 1; }
-    contentZoom = () => this._zoomed;
+    contentZoom = () => NumCast(this.props.layoutDoc._viewScale, 1);
     savedAnnotations = () => this._savedAnnotations;
     render() {
         TraceMobx();
@@ -525,7 +526,7 @@ export class PDFViewer extends React.Component<IViewerProps> {
             <div className={`pdfViewerDash${this.props.isContentActive() && this.props.pointerEvents?.() !== "none" ? "-interactive" : ""}`} ref={this._mainCont}
                 onScroll={this.onScroll} onWheel={this.onZoomWheel} onPointerDown={this.onPointerDown} onClick={this.onClick}
                 style={{
-                    overflowX: this._zoomed !== 1 ? "scroll" : undefined,
+                    overflowX: NumCast(this.props.layoutDoc._viewScale, 1) !== 1 ? "scroll" : undefined,
                     height: !this.props.Document._fitWidth && (window.screen.width > 600) ? Doc.NativeHeight(this.props.Document) : `${100 / this.contentScaling}%`,
                     transform: `scale(${this.contentScaling})`
                 }}  >
-- 
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