From 0178de4ab9ffd11630b700f9c02468b74beabd14 Mon Sep 17 00:00:00 2001
From: bobzel <zzzman@gmail.com>
Date: Wed, 17 Aug 2022 12:31:26 -0400
Subject: fixed dragging docs on web and pdf to work better by temporarily
 adding transparent docs to the opaque layer so they can get drop events.  
 cleaned eraser and pen interaction code and made erasing strokes work faster
 and avoid hanging by not intersecting strokes that are already partially
 deleted.

---
 src/client/views/nodes/WebBox.tsx | 110 ++++++++++++++++++++------------------
 1 file changed, 57 insertions(+), 53 deletions(-)

(limited to 'src/client/views/nodes/WebBox.tsx')

diff --git a/src/client/views/nodes/WebBox.tsx b/src/client/views/nodes/WebBox.tsx
index ca9f363c1..6c2e42f86 100644
--- a/src/client/views/nodes/WebBox.tsx
+++ b/src/client/views/nodes/WebBox.tsx
@@ -1,5 +1,5 @@
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
-import { action, computed, IReactionDisposer, observable, ObservableMap, reaction, runInAction } from 'mobx';
+import { action, computed, IReactionDisposer, observable, ObservableMap, reaction, runInAction, trace } from 'mobx';
 import { observer } from 'mobx-react';
 import * as WebRequest from 'web-request';
 import { Doc, DocListCast, HeightSym, Opt, WidthSym } from '../../../fields/Doc';
@@ -11,7 +11,7 @@ import { listSpec } from '../../../fields/Schema';
 import { Cast, ImageCast, NumCast, StrCast } from '../../../fields/Types';
 import { ImageField, WebField } from '../../../fields/URLField';
 import { TraceMobx } from '../../../fields/util';
-import { emptyFunction, getWordAtPoint, OmitKeys, returnFalse, returnOne, setupMoveUpEvents, smoothScroll, Utils } from '../../../Utils';
+import { emptyFunction, getWordAtPoint, OmitKeys, returnFalse, returnOne, setupMoveUpEvents, smoothScroll, StopEvent, Utils } from '../../../Utils';
 import { Docs, DocUtils } from '../../documents/Documents';
 import { ScriptingGlobals } from '../../util/ScriptingGlobals';
 import { SnappingManager } from '../../util/SnappingManager';
@@ -35,6 +35,7 @@ import { LinkDocPreview } from './LinkDocPreview';
 import { VideoBox } from './VideoBox';
 import './WebBox.scss';
 import React = require('react');
+import { DragManager } from '../../util/DragManager';
 const { CreateImage } = require('./WebBoxRenderer');
 const _global = (window /* browser */ || global) /* node */ as any;
 const htmlToText = require('html-to-text');
@@ -818,6 +819,56 @@ export class WebBox extends ViewBoxAnnotatableComponent<ViewBoxAnnotatableProps
         return this._showSidebar || this.layoutDoc._showSidebar ? true : false;
     }
 
+    @computed get webpage() {
+        const previewScale = this._previewNativeWidth ? 1 - this.sidebarWidth() / this._previewNativeWidth : 1;
+        const pointerEvents = this.layoutDoc._lockedPosition ? 'none' : (this.props.pointerEvents?.() as any);
+        const scale = previewScale * (this.props.NativeDimScaling?.() || 1);
+        const renderAnnotations = (docFilters?: () => string[]) => (
+            <CollectionFreeFormView
+                {...OmitKeys(this.props, ['NativeWidth', 'NativeHeight', 'setContentView']).omit}
+                renderDepth={this.props.renderDepth + 1}
+                isAnnotationOverlay={true}
+                fieldKey={this.annotationKey}
+                CollectionView={undefined}
+                setPreviewCursor={this.setPreviewCursor}
+                PanelWidth={this.panelWidth}
+                PanelHeight={this.panelHeight}
+                ScreenToLocalTransform={this.scrollXf}
+                NativeDimScaling={returnOne}
+                dropAction={'alias'}
+                docFilters={docFilters}
+                select={emptyFunction}
+                bringToFront={emptyFunction}
+                styleProvider={this.childStyleProvider}
+                whenChildContentsActiveChanged={this.whenChildContentsActiveChanged}
+                removeDocument={this.removeDocument}
+                moveDocument={this.moveDocument}
+                addDocument={this.addDocument}
+                childPointerEvents={this.props.isContentActive() ? 'all' : undefined}
+                pointerEvents={this.annotationPointerEvents}
+            />
+        );
+        return (
+            <div
+                className={'webBox-outerContent'}
+                ref={this._outerRef}
+                style={{
+                    height: `${100 / scale}%`,
+                    pointerEvents,
+                }}
+                onWheel={StopEvent} // block wheel events from propagating since they're handled by the iframe
+                onScroll={e => this.setDashScrollTop(this._outerRef.current?.scrollTop || 0)}
+                onPointerDown={this.onMarqueeDown}>
+                <div className={'webBox-innerContent'} style={{ height: this._webPageHasBeenRendered ? NumCast(this.scrollHeight, 50) : '100%', pointerEvents }}>
+                    {this.content}
+                    {<div style={{ display: DragManager.docsBeingDragged.length ? 'none' : undefined, mixBlendMode: 'multiply' }}>{renderAnnotations(this.transparentFilter)}</div>}
+                    {renderAnnotations(this.opaqueFilter)}
+                    {this.annotationLayer}
+                </div>
+            </div>
+        );
+    }
+
     @computed get searchUI() {
         return (
             <div className="webBox-ui" onPointerDown={e => e.stopPropagation()} style={{ display: this.props.isContentActive() ? 'flex' : 'none' }}>
@@ -859,9 +910,8 @@ export class WebBox extends ViewBoxAnnotatableComponent<ViewBoxAnnotatableProps
     panelHeight = () => this.props.PanelHeight() / (this.props.NativeDimScaling?.() || 1); // () => this._pageSizes.length && this._pageSizes[0] ? this._pageSizes[0].width : Doc.NativeWidth(this.Document);
     scrollXf = () => this.props.ScreenToLocalTransform().translate(0, NumCast(this.layoutDoc._scrollTop));
     anchorMenuClick = () => this._sidebarRef.current?.anchorMenuClick;
-    basicFilter = () => [...this.props.docFilters(), Utils.PropUnsetFilter('textInlineAnnotations')];
     transparentFilter = () => [...this.props.docFilters(), Utils.IsTransparentFilter()];
-    opaqueFilter = () => [...this.props.docFilters(), Utils.IsOpaqueFilter()];
+    opaqueFilter = () => [...this.props.docFilters(), Utils.noDragsDocFilter, ...(DragManager.docsBeingDragged.length ? [] : [Utils.IsOpaqueFilter()])];
     childStyleProvider = (doc: Doc | undefined, props: Opt<DocumentViewProps>, property: string): any => {
         if (doc instanceof Doc && property === StyleProp.PointerEvents) {
             if (doc.textInlineAnnotations) return 'none';
@@ -871,37 +921,11 @@ export class WebBox extends ViewBoxAnnotatableComponent<ViewBoxAnnotatableProps
     pointerEvents = () => (!this._draggingSidebar && this.props.isContentActive() && this.props.pointerEvents?.() !== 'none' && !MarqueeOptionsMenu.Instance.isShown() ? 'all' : SnappingManager.GetIsDragging() ? undefined : 'none');
     annotationPointerEvents = () => (this._isAnnotating || SnappingManager.GetIsDragging() ? 'all' : 'none');
     render() {
-        const pointerEvents = this.layoutDoc._lockedPosition ? 'none' : (this.props.pointerEvents?.() as any);
         const previewScale = this._previewNativeWidth ? 1 - this.sidebarWidth() / this._previewNativeWidth : 1;
+        const pointerEvents = this.layoutDoc._lockedPosition ? 'none' : (this.props.pointerEvents?.() as any);
         const scale = previewScale * (this.props.NativeDimScaling?.() || 1);
-        const renderAnnotations = (docFilters?: () => string[]) => (
-            <CollectionFreeFormView
-                {...OmitKeys(this.props, ['NativeWidth', 'NativeHeight', 'setContentView']).omit}
-                renderDepth={this.props.renderDepth + 1}
-                isAnnotationOverlay={true}
-                fieldKey={this.annotationKey}
-                CollectionView={undefined}
-                setPreviewCursor={this.setPreviewCursor}
-                PanelWidth={this.panelWidth}
-                PanelHeight={this.panelHeight}
-                ScreenToLocalTransform={this.scrollXf}
-                NativeDimScaling={returnOne}
-                dropAction={'alias'}
-                docFilters={docFilters || this.basicFilter}
-                dontRenderDocuments={docFilters ? false : true}
-                select={emptyFunction}
-                bringToFront={emptyFunction}
-                whenChildContentsActiveChanged={this.whenChildContentsActiveChanged}
-                removeDocument={this.removeDocument}
-                moveDocument={this.moveDocument}
-                addDocument={this.addDocument}
-                styleProvider={this.childStyleProvider}
-                childPointerEvents={this.props.isContentActive() ? 'all' : undefined}
-                pointerEvents={this.annotationPointerEvents}
-            />
-        );
         return (
-            <div className="webBox" ref={this._mainCont} style={{ pointerEvents: this.pointerEvents(), display: this.props.thumbShown?.() ? 'none' : undefined }}>
+            <div className="webBox" ref={this._mainCont} style={{ pointerEvents: this.pointerEvents(), display: !SnappingManager.GetIsDragging() && this.props.thumbShown?.() ? 'none' : undefined }}>
                 <div className="webBox-background" style={{ backgroundColor: this.props.styleProvider?.(this.rootDoc, this.props, StyleProp.BackgroundColor) }} />
                 <div
                     className="webBox-container"
@@ -911,27 +935,7 @@ export class WebBox extends ViewBoxAnnotatableComponent<ViewBoxAnnotatableProps
                         pointerEvents,
                     }}
                     onContextMenu={this.specificContextMenu}>
-                    <div
-                        className={'webBox-outerContent'}
-                        ref={this._outerRef}
-                        style={{
-                            height: `${100 / scale}%`,
-                            pointerEvents,
-                        }}
-                        onWheel={e => {
-                            e.stopPropagation();
-                            e.preventDefault();
-                        }} // block wheel events from propagating since they're handled by the iframe
-                        onScroll={e => this.setDashScrollTop(this._outerRef.current?.scrollTop || 0)}
-                        onPointerDown={this.onMarqueeDown}>
-                        <div className={'webBox-innerContent'} style={{ height: this._webPageHasBeenRendered ? NumCast(this.scrollHeight, 50) : '100%', pointerEvents }}>
-                            {this.content}
-                            <div style={{ mixBlendMode: 'multiply' }}>{renderAnnotations(this.transparentFilter)}</div>
-                            {renderAnnotations(this.opaqueFilter)}
-                            {SnappingManager.GetIsDragging() ? null : renderAnnotations()}
-                            {this.annotationLayer}
-                        </div>
-                    </div>
+                    {this.webpage}
                     {!this._marqueeing || !this._mainCont.current || !this._annotationLayer.current ? null : (
                         <div style={{ transformOrigin: 'top left', transform: `scale(${1 / scale})` }}>
                             <MarqueeAnnotator
-- 
cgit v1.2.3-70-g09d2