From 1fb7a7bc185c1ba9bbe0f21ad5e16cf19235b2da Mon Sep 17 00:00:00 2001
From: yipstanley <stanley_yip@brown.edu>
Date: Tue, 4 Jun 2019 13:59:04 -0400
Subject: updatesss

---
 src/client/views/nodes/PDFBox.tsx   |  2 +-
 src/client/views/pdf/PDFViewer.scss |  6 +++-
 src/client/views/pdf/PDFViewer.tsx  | 59 +++++++++++++++++++++++++++++--------
 3 files changed, 53 insertions(+), 14 deletions(-)

(limited to 'src')

diff --git a/src/client/views/nodes/PDFBox.tsx b/src/client/views/nodes/PDFBox.tsx
index 62c8e1c99..dd945b030 100644
--- a/src/client/views/nodes/PDFBox.tsx
+++ b/src/client/views/nodes/PDFBox.tsx
@@ -86,7 +86,7 @@ export class PDFBox extends DocComponent<FieldViewProps, PdfDocument>(PdfDocumen
         let classname = "pdfBox-cont" + (this.props.isSelected() && !InkingControl.Instance.selectedTool && !this._alt ? "-interactive" : "");
         return (
             <div onScroll={this.onScroll} style={{ overflow: "scroll", height: `${NumCast(this.props.Document.nativeWidth ? this.props.Document.nativeWidth : 300)}px` }} onWheel={(e: React.WheelEvent) => e.stopPropagation()} className={classname}>
-                <PDFViewer url={pdfUrl} loaded={this.loaded} scrollY={this._scrollY} />
+                <PDFViewer url={pdfUrl} loaded={this.loaded} scrollY={this._scrollY} parent={this} />
             </div>
         );
     }
diff --git a/src/client/views/pdf/PDFViewer.scss b/src/client/views/pdf/PDFViewer.scss
index 3a6045317..9d41a1bb0 100644
--- a/src/client/views/pdf/PDFViewer.scss
+++ b/src/client/views/pdf/PDFViewer.scss
@@ -1,4 +1,8 @@
-.canvasContainer {}
+.textLayer {
+    div {
+        user-select: text;
+    }
+}
 
 .viewer-button-cont {
     position: absolute;
diff --git a/src/client/views/pdf/PDFViewer.tsx b/src/client/views/pdf/PDFViewer.tsx
index 6201f6330..d510ba91c 100644
--- a/src/client/views/pdf/PDFViewer.tsx
+++ b/src/client/views/pdf/PDFViewer.tsx
@@ -1,18 +1,24 @@
 import { observer } from "mobx-react";
 import React = require("react");
-import { observable, action, runInAction, computed } from "mobx";
+import { observable, action, runInAction, computed, IReactionDisposer, reaction } from "mobx";
 import { RouteStore } from "../../../server/RouteStore";
 import * as Pdfjs from "pdfjs-dist";
+import * as htmlToImage from "html-to-image";
 import { Opt } from "../../../new_fields/Doc";
 import "./PDFViewer.scss";
 import "pdfjs-dist/web/pdf_viewer.css";
 import { number } from "prop-types";
 import { JSXElement } from "babel-types";
+import { PDFBox } from "../nodes/PDFBox";
+import { NumCast, FieldValue } from "../../../new_fields/Types";
+import { SearchBox } from "../SearchBox";
+import { Utils } from "../../../Utils";
 
 interface IPDFViewerProps {
     url: string;
     loaded: (nw: number, nh: number) => void;
     scrollY: number;
+    parent: PDFBox;
 }
 
 @observer
@@ -33,7 +39,7 @@ export class PDFViewer extends React.Component<IPDFViewerProps> {
     render() {
         return (
             <div>
-                <Viewer pdf={this._pdf} loaded={this.props.loaded} scrollY={this.props.scrollY} />
+                <Viewer pdf={this._pdf} loaded={this.props.loaded} scrollY={this.props.scrollY} parent={this.props.parent} />
             </div>
         );
     }
@@ -43,10 +49,9 @@ interface IViewerProps {
     pdf: Opt<Pdfjs.PDFDocumentProxy>;
     loaded: (nw: number, nh: number) => void;
     scrollY: number;
+    parent: PDFBox;
 }
 
-type PDFItem = React.Component<IPageProps> | HTMLDivElement;
-
 @observer
 class Viewer extends React.Component<IViewerProps> {
     @observable.shallow private _visibleElements: JSX.Element[] = [];
@@ -56,8 +61,41 @@ class Viewer extends React.Component<IViewerProps> {
     @observable private _endIndex: number = 1;
     @observable private _loaded: boolean = false;
     @observable private _pdf: Opt<Pdfjs.PDFDocumentProxy>;
+    @observable private _renderAsSvg = true;
 
     private _pageBuffer: number = 1;
+    private _reactionDisposer?: IReactionDisposer;
+    private _mainDiv = React.createRef<HTMLDivElement>();
+
+    @computed private get thumbnailPage() { return NumCast(this.props.parent.Document.thumbnailPage, -1); }
+
+    componentDidMount() {
+        let wasSelected = this.props.parent.props.isSelected();
+        this._reactionDisposer = reaction(
+            () => [this.props.parent.props.isSelected(), this.startIndex],
+            () => {
+                if (this.startIndex > 0 && !this.props.parent.props.isTopMost && this.startIndex !== this.thumbnailPage && wasSelected && !this.props.parent.props.isSelected()) {
+                    this.saveThumbnail();
+                }
+                wasSelected = this.props.parent.props.isSelected();
+            },
+            { fireImmediately: true }
+        );
+        let numPages = this.props.pdf ? this.props.pdf.numPages : 0;
+        this.renderPages(0, numPages - 1, true);
+    }
+
+    saveThumbnail = () => {
+        this.props.parent.props.Document.thumbnailPage = FieldValue(this.props.parent.Document.curPage, -1);
+        this._renderAsSvg = false;
+        setTimeout(() => {
+            let nwidth = FieldValue(this.props.parent.Document.nativeWidth, 0);
+            let nheight = FieldValue(this.props.parent.Document.nativeHeight, 0);
+            htmlToImage.toPng(this._mainDiv.current!, { width: nwidth, height: nheight, quality: 0.8 })
+                .then(action((dataUrl: string) => {
+                }));
+        }, 1250);
+    }
 
     @computed get scrollY(): number {
         return this.props.scrollY;
@@ -72,11 +110,6 @@ class Viewer extends React.Component<IViewerProps> {
         return Math.min(this.props.pdf ? this.props.pdf.numPages - 1 : 0, this.getIndex(this.scrollY + Math.max(...width)) + this._pageBuffer);
     }
 
-    componentDidMount = () => {
-        let numPages = this.props.pdf ? this.props.pdf.numPages : 0;
-        this.renderPages(0, numPages - 1, true);
-    }
-
     componentDidUpdate = (prevProps: IViewerProps) => {
         if (this.scrollY !== prevProps.scrollY || this._pdf !== this.props.pdf) {
             this._pdf = this.props.pdf;
@@ -188,7 +221,7 @@ class Viewer extends React.Component<IViewerProps> {
         console.log(`END: ${this.endIndex}`)
         let numPages = this.props.pdf ? this.props.pdf.numPages : 0;
         return (
-            <div className="viewer">
+            <div className="viewer" ref={this._mainDiv}>
                 {/* {Array.from(Array(numPages).keys()).map((i) => (
                     <Page
                         pdf={this.props.pdf}
@@ -294,20 +327,22 @@ class Page extends React.Component<IPageProps> {
     }
 
     onPointerDown = (e: React.PointerEvent) => {
+        console.log("down");
         e.stopPropagation();
     }
 
     onPointerMove = (e: React.PointerEvent) => {
+        console.log("move")
         e.stopPropagation();
     }
 
     render() {
         return (
-            <div className={this.props.name} style={{ "width": this._width, "height": this._height }}>
+            <div onPointerDown={this.onPointerDown} onPointerMove={this.onPointerMove} className={this.props.name} style={{ "width": this._width, "height": this._height }}>
                 <div className="canvasContainer">
                     <canvas ref={this.canvas} />
                 </div>
-                <div onPointerDown={this.onPointerDown} onPointerMove={this.onPointerMove} className="textlayer" ref={this.textLayer} style={{ "position": "relative", "top": `-${this._height}px`, "height": `${this._height}px` }} />
+                <div className="textlayer" ref={this.textLayer} style={{ "position": "relative", "top": `-${this._height}px`, "height": `${this._height}px` }} />
             </div>
         );
     }
-- 
cgit v1.2.3-70-g09d2