From fbc3e35a52aee959ce3621f3bc58ffb2e869904d Mon Sep 17 00:00:00 2001
From: bobzel <zzzman@gmail.com>
Date: Sat, 21 Sep 2019 00:50:32 -0400
Subject: fixed searching with pdf.

---
 src/client/views/nodes/PDFBox.tsx  | 93 ++++++++++++++++++--------------------
 src/client/views/pdf/PDFViewer.tsx | 71 +++++++++++++++++------------
 src/client/views/pdf/Page.scss     |  5 ++
 3 files changed, 90 insertions(+), 79 deletions(-)

(limited to 'src')

diff --git a/src/client/views/nodes/PDFBox.tsx b/src/client/views/nodes/PDFBox.tsx
index ffec9f29b..764051d62 100644
--- a/src/client/views/nodes/PDFBox.tsx
+++ b/src/client/views/nodes/PDFBox.tsx
@@ -4,12 +4,13 @@ import { observer } from "mobx-react";
 import * as Pdfjs from "pdfjs-dist";
 import "pdfjs-dist/web/pdf_viewer.css";
 import 'react-image-lightbox/style.css';
-import { Doc, WidthSym, Opt } from "../../../new_fields/Doc";
+import { Doc, Opt, WidthSym } from "../../../new_fields/Doc";
 import { makeInterface } from "../../../new_fields/Schema";
-import { ScriptField, ComputedField } from '../../../new_fields/ScriptField';
-import { BoolCast, Cast, NumCast } from "../../../new_fields/Types";
+import { ComputedField, ScriptField } from '../../../new_fields/ScriptField';
+import { Cast, NumCast } from "../../../new_fields/Types";
 import { PdfField } from "../../../new_fields/URLField";
 import { KeyCodes } from '../../northstar/utils/KeyCodes';
+import { panZoomSchema } from '../collections/collectionFreeForm/CollectionFreeFormView';
 import { DocComponent } from "../DocComponent";
 import { InkingControl } from "../InkingControl";
 import { PDFViewer } from "../pdf/PDFViewer";
@@ -18,24 +19,13 @@ import { FieldView, FieldViewProps } from './FieldView';
 import { pageSchema } from "./ImageBox";
 import "./PDFBox.scss";
 import React = require("react");
-import { Scripting } from '../../util/Scripting';
 
-type PdfDocument = makeInterface<[typeof documentSchema, typeof pageSchema]>;
-const PdfDocument = makeInterface(documentSchema, pageSchema);
-export const handleBackspace = (e: React.KeyboardEvent) => { if (e.keyCode === KeyCodes.BACKSPACE) e.stopPropagation(); };
+type PdfDocument = makeInterface<[typeof documentSchema, typeof panZoomSchema, typeof pageSchema]>;
+const PdfDocument = makeInterface(documentSchema, panZoomSchema, pageSchema);
 
 @observer
 export class PDFBox extends DocComponent<FieldViewProps, PdfDocument>(PdfDocument) {
     public static LayoutString() { return FieldView.LayoutString(PDFBox); }
-
-    @observable private _flyout: boolean = false;
-    @observable private _alt = false;
-    @observable private _pdf: Opt<Pdfjs.PDFDocumentProxy>;
-
-    @computed get extensionDoc() { return Doc.fieldExtensionDoc(this.dataDoc, this.props.fieldKey); }
-
-    @computed get dataDoc() { return this.props.DataDoc && this.props.Document.isTemplate ? this.props.DataDoc : Doc.GetProto(this.props.Document); }
-
     private _mainCont: React.RefObject<HTMLDivElement> = React.createRef();
     private _reactionDisposer?: IReactionDisposer;
     private _keyValue: string = "";
@@ -45,19 +35,26 @@ export class PDFBox extends DocComponent<FieldViewProps, PdfDocument>(PdfDocumen
     private _valueRef: React.RefObject<HTMLInputElement> = React.createRef();
     private _scriptRef: React.RefObject<HTMLInputElement> = React.createRef();
 
+    @observable private _flyout: boolean = false;
+    @observable private _alt = false;
+    @observable private _pdf: Opt<Pdfjs.PDFDocumentProxy>;
+
+    @computed get extensionDoc() { return Doc.fieldExtensionDoc(this.dataDoc, this.props.fieldKey); }
+
+    @computed get dataDoc() { return this.props.DataDoc && this.props.Document.isTemplate ? this.props.DataDoc : Doc.GetProto(this.props.Document); }
+
     componentDidMount() {
         this.props.setPdfBox && this.props.setPdfBox(this);
 
-        this.props.Document.pdfDoc = this.dataDoc;
-        this.props.Document.curPage = ComputedField.MakeFunction("Math.floor(Number(this.panY) / Number(this.pdfDoc.nativeHeight) + 1)");
+        this.props.Document.curPage = ComputedField.MakeFunction("Math.floor(Number(this.panY) / Number(this.nativeHeight) + 1)");
 
         const pdfUrl = Cast(this.dataDoc[this.props.fieldKey], PdfField);
         if (pdfUrl instanceof PdfField) {
             Pdfjs.getDocument(pdfUrl.url.pathname).promise.then(pdf => runInAction(() => this._pdf = pdf));
         }
         this._reactionDisposer = reaction(
-            () => this.props.Document.panY,
-            () => this._mainCont.current && this._mainCont.current.scrollTo({ top: NumCast(this.Document.panY), behavior: "auto" })
+            () => this.Document.panY,
+            () => this._mainCont.current && this._mainCont.current.scrollTo({ top: this.Document.panY || 0, behavior: "auto" })
         );
     }
 
@@ -66,22 +63,22 @@ export class PDFBox extends DocComponent<FieldViewProps, PdfDocument>(PdfDocumen
     }
 
     public GetPage() {
-        return Math.floor(NumCast(this.props.Document.panY) / NumCast(this.dataDoc.nativeHeight)) + 1;
+        return Math.floor((this.Document.panY || 0) / (this.Document.nativeHeight || 0)) + 1;
     }
 
     @action
     public BackPage() {
-        let cp = Math.ceil(NumCast(this.props.Document.panY) / NumCast(this.dataDoc.nativeHeight)) + 1;
+        let cp = Math.ceil((this.Document.panY || 0) / (this.Document.nativeHeight || 0)) + 1;
         cp = cp - 1;
         if (cp > 0) {
-            this.props.Document.panY = (cp - 1) * NumCast(this.dataDoc.nativeHeight);
+            this.Document.panY = (cp - 1) * (this.Document.nativeHeight || 0);
         }
     }
 
     @action
-    public GotoPage(p: number) {
+    public GotoPage = (p: number) => {
         if (p > 0 && p <= NumCast(this.dataDoc.numPages)) {
-            this.props.Document.panY = (p - 1) * NumCast(this.dataDoc.nativeHeight);
+            this.Document.panY = (p - 1) * (this.Document.nativeHeight || 0);
         }
     }
 
@@ -89,20 +86,19 @@ export class PDFBox extends DocComponent<FieldViewProps, PdfDocument>(PdfDocumen
     public ForwardPage() {
         let cp = this.GetPage() + 1;
         if (cp <= NumCast(this.dataDoc.numPages)) {
-            this.props.Document.panY = (cp - 1) * NumCast(this.dataDoc.nativeHeight);
+            this.Document.panY = (cp - 1) * (this.Document.nativeHeight || 0);
         }
     }
 
     @action
     setPanY = (y: number) => {
-        this.props.ContainingCollectionDoc && (this.props.ContainingCollectionDoc.panY = y);
+        this.Document.panY = y;
     }
 
     @action
     private applyFilter = () => {
-        let scriptText = this._scriptValue.length > 0 ? this._scriptValue :
-            this._keyValue.length > 0 && this._valueValue.length > 0 ?
-                `this.${this._keyValue} === ${this._valueValue}` : "true";
+        let scriptText = this._scriptValue ? this._scriptValue :
+            this._keyValue && this._valueValue ? `this.${this._keyValue} === ${this._valueValue}` : "true";
         this.props.Document.filterScript = ScriptField.MakeFunction(scriptText);
     }
 
@@ -111,8 +107,7 @@ export class PDFBox extends DocComponent<FieldViewProps, PdfDocument>(PdfDocumen
     }
 
     private resetFilters = () => {
-        this._keyValue = this._valueValue = "";
-        this._scriptValue = "";
+        this._keyValue = this._valueValue = this._scriptValue = "";
         this._keyRef.current && (this._keyRef.current.value = "");
         this._valueRef.current && (this._valueRef.current.value = "");
         this._scriptRef.current && (this._scriptRef.current.value = "");
@@ -126,7 +121,7 @@ export class PDFBox extends DocComponent<FieldViewProps, PdfDocument>(PdfDocumen
         return !this.props.active() ? (null) :
             (<div className="pdfBox-settingsCont" onPointerDown={(e) => e.stopPropagation()}>
                 <button className="pdfBox-settingsButton" onClick={action(() => this._flyout = !this._flyout)} title="Open Annotation Settings"
-                    style={{ marginTop: `${this.props.ContainingCollectionDoc ? NumCast(this.props.ContainingCollectionDoc.panY) : 0}px` }}>
+                    style={{ marginTop: `${this.Document.panY || 0}px` }}>
                     <div className="pdfBox-settingsButton-arrow"
                         style={{
                             borderTop: `25px solid ${this._flyout ? "#121721" : "transparent"}`,
@@ -143,13 +138,13 @@ export class PDFBox extends DocComponent<FieldViewProps, PdfDocument>(PdfDocumen
                         Annotation View Settings
                     </div>
                     <div className="pdfBox-settingsFlyout-kvpInput">
-                        <input placeholder="Key" className="pdfBox-settingsFlyout-input" onKeyDown={handleBackspace} onChange={this.newKeyChange}
+                        <input placeholder="Key" className="pdfBox-settingsFlyout-input" onChange={this.newKeyChange}
                             style={{ gridColumn: 1 }} ref={this._keyRef} />
-                        <input placeholder="Value" className="pdfBox-settingsFlyout-input" onKeyDown={handleBackspace} onChange={this.newValueChange}
+                        <input placeholder="Value" className="pdfBox-settingsFlyout-input" onChange={this.newValueChange}
                             style={{ gridColumn: 3 }} ref={this._valueRef} />
                     </div>
                     <div className="pdfBox-settingsFlyout-kvpInput">
-                        <input placeholder="Custom Script" onChange={this.newScriptChange} onKeyDown={handleBackspace} style={{ gridColumn: "1 / 4" }} ref={this._scriptRef} />
+                        <input placeholder="Custom Script" onChange={this.newScriptChange} style={{ gridColumn: "1 / 4" }} ref={this._scriptRef} />
                     </div>
                     <div className="pdfBox-settingsFlyout-kvpInput">
                         <button style={{ gridColumn: 1 }} onClick={this.resetFilters}>
@@ -167,20 +162,20 @@ export class PDFBox extends DocComponent<FieldViewProps, PdfDocument>(PdfDocumen
 
     loaded = (nw: number, nh: number, np: number) => {
         this.dataDoc.numPages = np;
-        if (!this.dataDoc.nativeWidth || !this.dataDoc.nativeHeight || !this.dataDoc.scrollHeight) {
-            let oldaspect = NumCast(this.dataDoc.nativeHeight) / NumCast(this.dataDoc.nativeWidth, 1);
-            this.dataDoc.nativeWidth = nw;
-            this.dataDoc.nativeHeight = this.dataDoc.nativeHeight ? nw * oldaspect : nh;
-            this.dataDoc.height = this.dataDoc[WidthSym]() * (nh / nw);
-            this.dataDoc.scrollHeight = np * this.dataDoc.nativeHeight;
+        if (!this.Document.nativeWidth || !this.Document.nativeHeight || !this.Document.scrollHeight) {
+            let oldaspect = (this.Document.nativeHeight || 0) / (this.Document.nativeWidth || 1);
+            this.Document.nativeWidth = nw;
+            this.Document.nativeHeight = this.Document.nativeHeight ? nw * oldaspect : nh;
+            this.Document.height = this.Document[WidthSym]() * (nh / nw);
+            this.Document.scrollHeight = np * this.Document.nativeHeight;
         }
     }
 
     @action
     onScroll = (e: React.UIEvent<HTMLDivElement>) => {
         if (e.currentTarget && this.props.ContainingCollectionDoc) {
-            this.props.ContainingCollectionDoc.panTransformType = "None";
-            this.props.ContainingCollectionDoc.panY = e.currentTarget.scrollTop;
+            this.props.Document.panTransformType = "None";
+            this.Document.panY = e.currentTarget.scrollTop;
         }
     }
 
@@ -192,12 +187,12 @@ export class PDFBox extends DocComponent<FieldViewProps, PdfDocument>(PdfDocumen
             <div>{`pdf, ${this.dataDoc[this.props.fieldKey]}, not found`}</div> :
             <div className={classname}
                 onScroll={this.onScroll}
-                style={{ marginTop: `${this.props.ContainingCollectionDoc ? NumCast(this.props.ContainingCollectionDoc.panY) : 0}px` }}
+                style={{ marginTop: `${(this.Document.panY || 0)}px` }}
                 ref={this._mainCont}>
-                do<div className="pdfBox-scrollHack" style={{ height: NumCast(this.props.Document.scrollHeight) + (NumCast(this.props.Document.nativeHeight) - NumCast(this.props.Document.nativeHeight) / NumCast(this.props.Document.scale, 1)), width: "100%" }} />
-                <PDFViewer pdf={this._pdf} url={pdfUrl.url.pathname} active={this.props.active} scrollTo={this.scrollTo} loaded={this.loaded} panY={NumCast(this.props.Document.panY)}
-                    Document={this.props.Document} DataDoc={this.props.DataDoc}
-                    addDocTab={this.props.addDocTab} setPanY={this.setPanY}
+                <div className="pdfBox-scrollHack" style={{ height: NumCast(this.props.Document.scrollHeight) + ((this.Document.nativeHeight || 0) - (this.Document.nativeHeight || 0) / (this.Document.scale || 1)) }} />
+                <PDFViewer pdf={this._pdf} url={pdfUrl.url.pathname} active={this.props.active} scrollTo={this.scrollTo} loaded={this.loaded} panY={this.Document.panY || 0}
+                    Document={this.props.Document} DataDoc={this.dataDoc}
+                    addDocTab={this.props.addDocTab} setPanY={this.setPanY} GoToPage={this.GotoPage}
                     pinToPres={this.props.pinToPres} addDocument={this.props.addDocument}
                     fieldKey={this.props.fieldKey} fieldExtensionDoc={this.extensionDoc} />
                 {this.settingsPanel()}
diff --git a/src/client/views/pdf/PDFViewer.tsx b/src/client/views/pdf/PDFViewer.tsx
index 4afed0b95..c94b4e3a4 100644
--- a/src/client/views/pdf/PDFViewer.tsx
+++ b/src/client/views/pdf/PDFViewer.tsx
@@ -1,5 +1,5 @@
 import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
-import { action, computed, IReactionDisposer, observable, reaction, runInAction } from "mobx";
+import { action, computed, IReactionDisposer, observable, reaction, runInAction, trace } from "mobx";
 import { observer } from "mobx-react";
 import * as Pdfjs from "pdfjs-dist";
 import "pdfjs-dist/web/pdf_viewer.css";
@@ -19,6 +19,7 @@ import Annotation from "./Annotation";
 import Page from "./Page";
 import "./PDFViewer.scss";
 import React = require("react");
+import requestPromise = require("request-promise");
 const PDFJSViewer = require("pdfjs-dist/web/pdf_viewer");
 
 export const scale = 2;
@@ -35,6 +36,7 @@ interface IViewerProps {
     scrollTo: (y: number) => void;
     active: () => boolean;
     setPanY?: (n: number) => void;
+    GoToPage?: (n: number) => void;
     addDocTab: (document: Doc, dataDoc: Doc | undefined, where: string) => boolean;
     pinToPres: (document: Doc) => void;
     addDocument?: (doc: Doc, allowDuplicates?: boolean) => boolean;
@@ -61,7 +63,7 @@ export class PDFViewer extends React.Component<IViewerProps> {
     private _filterReactionDisposer?: IReactionDisposer;
     private _viewer: React.RefObject<HTMLDivElement> = React.createRef();
     private _mainCont: React.RefObject<HTMLDivElement> = React.createRef();
-    private _pdfViewer: any;
+    public _pdfViewer: any;
     private _pdfFindController: any;
     private _searchString: string = "";
     private _selectionText: string = "";
@@ -363,7 +365,7 @@ export class PDFViewer extends React.Component<IViewerProps> {
     @action
     search = (searchString: string) => {
         if (this._pdfViewer._pageViewsReady) {
-            this._pdfFindController.executeCommand('find', {
+            this._pdfFindController.executeCommand('findagain', {
                 caseSensitive: false,
                 findPrevious: undefined,
                 highlightAll: true,
@@ -372,13 +374,15 @@ export class PDFViewer extends React.Component<IViewerProps> {
             });
         }
         else if (this._mainCont.current) {
-            let executeFind = () => this._pdfFindController.executeCommand('find', {
-                caseSensitive: false,
-                findPrevious: undefined,
-                highlightAll: true,
-                phraseSearch: true,
-                query: searchString
-            });
+            let executeFind = () => {
+                this._pdfFindController.executeCommand('find', {
+                    caseSensitive: false,
+                    findPrevious: undefined,
+                    highlightAll: true,
+                    phraseSearch: true,
+                    query: searchString
+                });
+            }
             this._mainCont.current.addEventListener("pagesloaded", executeFind);
             this._mainCont.current.addEventListener("pagerendered", executeFind);
         }
@@ -391,14 +395,14 @@ export class PDFViewer extends React.Component<IViewerProps> {
         this._searching = !this._searching;
 
         if (this._searching) {
-            if (!this._pdfFindController && this._mainCont.current && this._viewer.current) {
-                let simpleLinkService = new SimpleLinkService();
+            if (!this._pdfFindController && this._mainCont.current && this._viewer.current && !this._pdfViewer) {
+                let simpleLinkService = new SimpleLinkService(this);
                 this._pdfViewer = new PDFJSViewer.PDFViewer({
                     container: this._mainCont.current,
                     viewer: this._viewer.current,
                     linkService: simpleLinkService
-                });
-                simpleLinkService.setPdf(this.props.pdf);
+                })
+                simpleLinkService.setPDFJSview(this._pdfViewer);
                 this._mainCont.current.addEventListener("pagesinit", () => this._pdfViewer.currentScaleValue = 1);
                 this._mainCont.current.addEventListener("pagerendered", () => console.log("rendered"));
                 this._pdfViewer.setDocument(this.props.pdf);
@@ -406,21 +410,16 @@ export class PDFViewer extends React.Component<IViewerProps> {
                 this._pdfViewer.findController = this._pdfFindController;
             }
         }
-        else {
-            this._pdfFindController = null;
-            if (this._viewer.current) {
-                let cns = this._viewer.current.childNodes;
-                for (let i = cns.length - 1; i >= 0; i--) {
-                    cns.item(i).remove();
-                }
-            }
-        }
+    }
+    @computed get visibleElementWrapper() {
+        trace();
+        return this._visibleElements;
     }
 
     render() {
         return (<div className="pdfViewer-viewer" ref={this._mainCont} >
             <div className="pdfViewer-visibleElements" style={this._searching ? { position: "absolute", top: 0 } : {}}>
-                {this._visibleElements}
+                {this.visibleElementWrapper}
             </div>
             <div className="pdfViewer-text" ref={this._viewer} />
             <div className="pdfViewer-annotationLayer" style={{ height: NumCast(this.props.Document.nativeHeight) }} ref={this._annotationLayer}>
@@ -458,9 +457,13 @@ export class PDFViewer extends React.Component<IViewerProps> {
 export enum AnnotationTypes { Region }
 
 class SimpleLinkService {
-    externalLinkTarget: any = null;
-    externalLinkRel: any = null;
-    pdf: any = null;
+    _viewer: PDFViewer;
+    _pdfjsView: any;
+
+    constructor(viewer: PDFViewer) {
+        this._viewer = viewer;
+    }
+    setPDFJSview(v: any) { this._pdfjsView = v; }
 
     navigateTo() { }
 
@@ -470,15 +473,23 @@ class SimpleLinkService {
 
     setHash() { }
 
+    isPageVisible(page: number) { return true; }
+
     executeNamedAction() { }
 
     cachePageRef() { }
 
-    get pagesCount() { return this.pdf ? this.pdf.numPages : 0; }
+    get pagesCount() { return this._viewer._pdfViewer.pagesCount; }
 
-    get page() { return 0; }
+    get page() { return NumCast(this._viewer.props.Document.curPage); }
+    set page(p: number) {
+        this._pdfjsView._ensurePdfPageLoaded(this._pdfjsView._pages[p - 1]).then(() => {
+            this._pdfjsView.renderingQueue.renderView(this._pdfjsView._pages[p - 1]);
+            if (this._viewer.props.GoToPage)
+                this._viewer.props.GoToPage(p);
+        });
+    }
 
-    setPdf(pdf: any) { this.pdf = pdf; }
 
     get rotation() { return 0; }
     set rotation(value: any) { }
diff --git a/src/client/views/pdf/Page.scss b/src/client/views/pdf/Page.scss
index af1628a6f..d8034b4b4 100644
--- a/src/client/views/pdf/Page.scss
+++ b/src/client/views/pdf/Page.scss
@@ -1,4 +1,9 @@
 
+.pdfViewer-text {
+    .page {
+        position: relative;
+    }
+}
 .pdfPage-cont {
     position: relative;
 
-- 
cgit v1.2.3-70-g09d2