diff options
Diffstat (limited to 'src/client/views/nodes/PDFBox.tsx')
| -rw-r--r-- | src/client/views/nodes/PDFBox.tsx | 158 |
1 files changed, 78 insertions, 80 deletions
diff --git a/src/client/views/nodes/PDFBox.tsx b/src/client/views/nodes/PDFBox.tsx index e273b0b4f..81ceb37f6 100644 --- a/src/client/views/nodes/PDFBox.tsx +++ b/src/client/views/nodes/PDFBox.tsx @@ -1,5 +1,5 @@ import * as htmlToImage from "html-to-image"; -import { action, computed, observable, reaction, IReactionDisposer, trace, keys } from 'mobx'; +import { action, computed, IReactionDisposer, observable, reaction } from 'mobx'; import { observer } from "mobx-react"; import 'react-image-lightbox/style.css'; import Measure from "react-measure"; @@ -10,15 +10,15 @@ import { FieldWaiting, Opt } from '../../../fields/Field'; import { ImageField } from '../../../fields/ImageField'; import { KeyStore } from '../../../fields/KeyStore'; import { PDFField } from '../../../fields/PDFField'; +import { RouteStore } from "../../../server/RouteStore"; import { Utils } from '../../../Utils'; import { Annotation } from './Annotation'; import { FieldView, FieldViewProps } from './FieldView'; import "./ImageBox.scss"; import "./PDFBox.scss"; import { Sticky } from './Sticky'; //you should look at sticky and annotation, because they are used here -import React = require("react") -import { RouteStore } from "../../../server/RouteStore"; -import { NumberField } from "../../../fields/NumberField"; +import React = require("react"); +import { SelectionManager } from "../../util/SelectionManager"; /** ALSO LOOK AT: Annotation.tsx, Sticky.tsx * This method renders PDF and puts all kinds of functionalities such as annotation, highlighting, @@ -55,9 +55,11 @@ import { NumberField } from "../../../fields/NumberField"; export class PDFBox extends React.Component<FieldViewProps> { public static LayoutString() { return FieldView.LayoutString(PDFBox); } - private _mainDiv = React.createRef<HTMLDivElement>() + private _mainDiv = React.createRef<HTMLDivElement>(); private _pdf = React.createRef<HTMLCanvasElement>(); + @observable private _renderAsSvg = true; + //very useful for keeping track of X and y position throughout the PDF Canvas private initX: number = 0; private initY: number = 0; @@ -70,7 +72,7 @@ export class PDFBox extends React.Component<FieldViewProps> { private _currTool: any; //keeps track of current tool button reference private _drawToolOn: boolean = false; //boolean that keeps track of the drawing tool - private _drawTool = React.createRef<HTMLButtonElement>()//drawing tool button reference + private _drawTool = React.createRef<HTMLButtonElement>();//drawing tool button reference private _colorTool = React.createRef<HTMLButtonElement>(); //color button reference private _currColor: string = "black"; //current color that user selected (for ink/pen) @@ -83,18 +85,18 @@ export class PDFBox extends React.Component<FieldViewProps> { @observable private _perPageInfo: Object[] = []; //stores pageInfo @observable private _pageInfo: any = { area: [], divs: [], anno: [] }; //divs is array of objects linked to anno - @observable private _currAnno: any = [] + @observable private _currAnno: any = []; @observable private _interactive: boolean = false; @observable private _loaded: boolean = false; - @computed private get curPage() { return this.props.doc.GetNumber(KeyStore.CurPage, -1); } - @computed private get thumbnailPage() { return this.props.doc.GetNumber(KeyStore.ThumbnailPage, -1); } + @computed private get curPage() { return this.props.Document.GetNumber(KeyStore.CurPage, 1); } + @computed private get thumbnailPage() { return this.props.Document.GetNumber(KeyStore.ThumbnailPage, -1); } componentDidMount() { this._reactionDisposer = reaction( - () => [this.curPage, this.thumbnailPage], + () => [SelectionManager.SelectedDocuments().slice()], () => { - if (this.curPage > 0 && this.thumbnailPage > 0 && this.curPage != this.thumbnailPage) { + if (this.curPage > 0 && this.thumbnailPage > 0 && this.curPage !== this.thumbnailPage && !this.props.isSelected()) { this.saveThumbnail(); this._interactive = true; } @@ -151,7 +153,7 @@ export class PDFBox extends React.Component<FieldViewProps> { */ makeEditableAndHighlight = (colour: string) => { var range, sel = window.getSelection(); - if (sel.rangeCount && sel.getRangeAt) { + if (sel && sel.rangeCount && sel.getRangeAt) { range = sel.getRangeAt(0); } document.designMode = "on"; @@ -159,31 +161,31 @@ export class PDFBox extends React.Component<FieldViewProps> { document.execCommand("HiliteColor", false, colour); } - if (range) { + if (range && sel) { sel.removeAllRanges(); sel.addRange(range); let obj: Object = { parentDivs: [], spans: [] }; //@ts-ignore - if (range.commonAncestorContainer.className == 'react-pdf__Page__textContent') { //multiline highlighting case - obj = this.highlightNodes(range.commonAncestorContainer.childNodes) + if (range.commonAncestorContainer.className === 'react-pdf__Page__textContent') { //multiline highlighting case + obj = this.highlightNodes(range.commonAncestorContainer.childNodes); } else { //single line highlighting case - let parentDiv = range.commonAncestorContainer.parentElement + let parentDiv = range.commonAncestorContainer.parentElement; if (parentDiv) { - if (parentDiv.className == 'react-pdf__Page__textContent') { //when highlight is overwritten - obj = this.highlightNodes(parentDiv.childNodes) + if (parentDiv.className === 'react-pdf__Page__textContent') { //when highlight is overwritten + obj = this.highlightNodes(parentDiv.childNodes); } else { parentDiv.childNodes.forEach((child) => { - if (child.nodeName == 'SPAN') { + if (child.nodeName === 'SPAN') { //@ts-ignore - obj.parentDivs.push(parentDiv) + obj.parentDivs.push(parentDiv); //@ts-ignore - child.id = "highlighted" + child.id = "highlighted"; //@ts-ignore - obj.spans.push(child) + obj.spans.push(child); child.addEventListener("mouseover", this.onEnter); //adds mouseover annotation handler } - }) + }); } } } @@ -194,21 +196,21 @@ export class PDFBox extends React.Component<FieldViewProps> { } highlightNodes = (nodes: NodeListOf<ChildNode>) => { - let temp = { parentDivs: [], spans: [] } + let temp = { parentDivs: [], spans: [] }; nodes.forEach((div) => { div.childNodes.forEach((child) => { - if (child.nodeName == 'SPAN') { + if (child.nodeName === 'SPAN') { //@ts-ignore - temp.parentDivs.push(div) + temp.parentDivs.push(div); //@ts-ignore - child.id = "highlighted" + child.id = "highlighted"; //@ts-ignore - temp.spans.push(child) + temp.spans.push(child); child.addEventListener("mouseover", this.onEnter); //adds mouseover annotation handler } - }) + }); - }) + }); return temp; } @@ -221,29 +223,29 @@ export class PDFBox extends React.Component<FieldViewProps> { let index: any; this._pageInfo.divs.forEach((obj: any) => { obj.spans.forEach((element: any) => { - if (element == span) { + if (element === span) { if (!index) { index = this._pageInfo.divs.indexOf(obj); } } - }) - }) + }); + }); if (this._pageInfo.anno.length >= index + 1) { - if (this._currAnno.length == 0) { + if (this._currAnno.length === 0) { this._currAnno.push(this._pageInfo.anno[index]); } } else { - if (this._currAnno.length == 0) { //if there are no current annotation + if (this._currAnno.length === 0) { //if there are no current annotation let div = span.offsetParent; //@ts-ignore - let divX = div.style.left + let divX = div.style.left; //@ts-ignore - let divY = div.style.top + let divY = div.style.top; //slicing "px" from the end divX = divX.slice(0, divX.length - 2); //gets X of the DIV element (parent of Span) divY = divY.slice(0, divY.length - 2); //gets Y of the DIV element (parent of Span) - let annotation = <Annotation key={Utils.GenerateGuid()} Span={span} X={divX} Y={divY - 300} Highlights={this._pageInfo.divs} Annotations={this._pageInfo.anno} CurrAnno={this._currAnno} /> + let annotation = <Annotation key={Utils.GenerateGuid()} Span={span} X={divX} Y={divY - 300} Highlights={this._pageInfo.divs} Annotations={this._pageInfo.anno} CurrAnno={this._currAnno} />; this._pageInfo.anno.push(annotation); this._currAnno.push(annotation); } @@ -261,7 +263,7 @@ export class PDFBox extends React.Component<FieldViewProps> { this.makeEditableAndHighlight(color); } } catch (ex) { - this.makeEditableAndHighlight(color) + this.makeEditableAndHighlight(color); } } } @@ -303,7 +305,7 @@ export class PDFBox extends React.Component<FieldViewProps> { } if (this._mainDiv.current) { - let sticky = <Sticky key={Utils.GenerateGuid()} Height={height} Width={width} X={this.initX} Y={this.initY} /> + let sticky = <Sticky key={Utils.GenerateGuid()} Height={height} Width={width} X={this.initX} Y={this.initY} />; this._pageInfo.area.push(sticky); } this._toolOn = false; @@ -315,7 +317,7 @@ export class PDFBox extends React.Component<FieldViewProps> { * starts drawing the line when user presses down. */ onDraw = () => { - if (this._currTool != null) { + if (this._currTool !== null) { this._currTool.style.backgroundColor = "grey"; } @@ -340,13 +342,13 @@ export class PDFBox extends React.Component<FieldViewProps> { * for changing color (for ink/pen) */ onColorChange = (e: React.PointerEvent) => { - if (e.currentTarget.innerHTML == "Red") { + if (e.currentTarget.innerHTML === "Red") { this._currColor = "red"; - } else if (e.currentTarget.innerHTML == "Blue") { + } else if (e.currentTarget.innerHTML === "Blue") { this._currColor = "blue"; - } else if (e.currentTarget.innerHTML == "Green") { + } else if (e.currentTarget.innerHTML === "Green") { this._currColor = "green"; - } else if (e.currentTarget.innerHTML == "Black") { + } else if (e.currentTarget.innerHTML === "Black") { this._currColor = "black"; } @@ -358,7 +360,7 @@ export class PDFBox extends React.Component<FieldViewProps> { */ onHighlight = () => { this._drawToolOn = false; - if (this._currTool != null) { + if (this._currTool !== null) { this._currTool.style.backgroundColor = "grey"; } if (this._highlightTool.current) { @@ -376,42 +378,45 @@ export class PDFBox extends React.Component<FieldViewProps> { @action saveThumbnail = () => { + this._renderAsSvg = false; setTimeout(() => { var me = this; - htmlToImage.toPng(this._mainDiv.current!, - { width: me.props.doc.GetNumber(KeyStore.NativeWidth, 0), height: me.props.doc.GetNumber(KeyStore.NativeHeight, 0), quality: 0.5 }) - .then(function (dataUrl: string) { - me.props.doc.SetData(KeyStore.Thumbnail, new URL(dataUrl), ImageField); - me.props.doc.SetNumber(KeyStore.ThumbnailPage, me.props.doc.GetNumber(KeyStore.CurPage, -1)); - }) + let nwidth = me.props.Document.GetNumber(KeyStore.NativeWidth, 0); + let nheight = me.props.Document.GetNumber(KeyStore.NativeHeight, 0); + htmlToImage.toPng(this._mainDiv.current!, { width: nwidth, height: nheight, quality: 1 }) + .then(action((dataUrl: string) => { + me.props.Document.SetData(KeyStore.Thumbnail, new URL(dataUrl), ImageField); + me.props.Document.SetNumber(KeyStore.ThumbnailPage, me.props.Document.GetNumber(KeyStore.CurPage, -1)); + me._renderAsSvg = true; + })) .catch(function (error: any) { console.error('oops, something went wrong!', error); }); - }, 1000); + }, 250); } @action onLoaded = (page: any) => { if (this._mainDiv.current) { this._mainDiv.current.childNodes.forEach((element) => { - if (element.nodeName == "DIV") { + if (element.nodeName === "DIV") { element.childNodes[0].childNodes.forEach((e) => { if (e instanceof HTMLCanvasElement) { this._pdfCanvas = e; - this._pdfContext = e.getContext("2d") + this._pdfContext = e.getContext("2d"); } - }) + }); } - }) + }); } // bcz: the number of pages should really be set when the document is imported. - this.props.doc.SetNumber(KeyStore.NumPages, page._transport.numPages); - if (this._perPageInfo.length == 0) { //Makes sure it only runs once - this._perPageInfo = [...Array(page._transport.numPages)] + this.props.Document.SetNumber(KeyStore.NumPages, page._transport.numPages); + if (this._perPageInfo.length === 0) { //Makes sure it only runs once + this._perPageInfo = [...Array(page._transport.numPages)]; } this._loaded = true; } @@ -421,27 +426,22 @@ export class PDFBox extends React.Component<FieldViewProps> { // bcz: the nativeHeight should really be set when the document is imported. // also, the native dimensions could be different for different pages of the PDF // so this design is flawed. - var nativeWidth = this.props.doc.GetNumber(KeyStore.NativeWidth, 0); - if (!this.props.doc.GetNumber(KeyStore.NativeHeight, 0)) { + var nativeWidth = this.props.Document.GetNumber(KeyStore.NativeWidth, 0); + if (!this.props.Document.GetNumber(KeyStore.NativeHeight, 0)) { var nativeHeight = nativeWidth * r.entry.height / r.entry.width; - this.props.doc.SetNumber(KeyStore.Height, nativeHeight / nativeWidth * this.props.doc.GetNumber(KeyStore.Width, 0)); - this.props.doc.SetNumber(KeyStore.NativeHeight, nativeHeight); - } - if (!this.props.doc.GetT(KeyStore.Thumbnail, ImageField)) { - this.saveThumbnail(); + this.props.Document.SetNumber(KeyStore.Height, nativeHeight / nativeWidth * this.props.Document.GetNumber(KeyStore.Width, 0)); + this.props.Document.SetNumber(KeyStore.NativeHeight, nativeHeight); } } @computed get pdfContent() { let page = this.curPage; - if (page == 0) - page = 1; const renderHeight = 2400; - let pdfUrl = this.props.doc.GetT(this.props.fieldKey, PDFField); - let xf = this.props.doc.GetNumber(KeyStore.NativeHeight, 0) / renderHeight; + let pdfUrl = this.props.Document.GetT(this.props.fieldKey, PDFField); + let xf = this.props.Document.GetNumber(KeyStore.NativeHeight, 0) / renderHeight; return <div className="pdfBox-contentContainer" key="container" style={{ transform: `scale(${xf}, ${xf})` }}> - <Document file={window.origin + RouteStore.corsProxy + `/${pdfUrl}`}> + <Document file={window.origin + RouteStore.corsProxy + `/${pdfUrl}`} renderMode={this._renderAsSvg ? "svg" : ""}> <Measure onResize={this.setScaling}> {({ measureRef }) => <div className="pdfBox-page" ref={measureRef}> @@ -456,25 +456,23 @@ export class PDFBox extends React.Component<FieldViewProps> { @computed get pdfRenderer() { let proxy = this._loaded ? (null) : this.imageProxyRenderer; - let pdfUrl = this.props.doc.GetT(this.props.fieldKey, PDFField); - if ((!this._interactive && proxy) || !pdfUrl || pdfUrl == FieldWaiting) { + let pdfUrl = this.props.Document.GetT(this.props.fieldKey, PDFField); + if ((!this._interactive && proxy) || !pdfUrl || pdfUrl === FieldWaiting) { return proxy; } return [ this._pageInfo.area.filter(() => this._pageInfo.area).map((element: any) => element), this._currAnno.map((element: any) => element), - <div key="pdfBox-contentShell"> - {this.pdfContent} - {proxy} - </div> + this.pdfContent, + proxy ]; } @computed get imageProxyRenderer() { - let thumbField = this.props.doc.Get(KeyStore.Thumbnail); + let thumbField = this.props.Document.Get(KeyStore.Thumbnail); if (thumbField) { - let path = thumbField == FieldWaiting || this.thumbnailPage != this.curPage ? "https://image.flaticon.com/icons/svg/66/66163.svg" : + let path = thumbField === FieldWaiting || this.thumbnailPage !== this.curPage ? "https://image.flaticon.com/icons/svg/66/66163.svg" : thumbField instanceof ImageField ? thumbField.Data.href : "http://cs.brown.edu/people/bcz/prairie.jpg"; return <img src={path} width="100%" />; } |