diff options
Diffstat (limited to 'src/client/views/nodes/PDFBox.tsx')
| -rw-r--r-- | src/client/views/nodes/PDFBox.tsx | 407 |
1 files changed, 134 insertions, 273 deletions
diff --git a/src/client/views/nodes/PDFBox.tsx b/src/client/views/nodes/PDFBox.tsx index 70a70c7c8..e71ac4924 100644 --- a/src/client/views/nodes/PDFBox.tsx +++ b/src/client/views/nodes/PDFBox.tsx @@ -1,22 +1,26 @@ import * as htmlToImage from "html-to-image"; -import { action, computed, observable, reaction, IReactionDisposer } from 'mobx'; +import { action, computed, IReactionDisposer, observable, reaction, Reaction, trace, runInAction } from 'mobx'; import { observer } from "mobx-react"; import 'react-image-lightbox/style.css'; import Measure from "react-measure"; //@ts-ignore import { Document, Page } from "react-pdf"; import 'react-pdf/dist/Page/AnnotationLayer.css'; -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 React = require("react"); +import { SelectionManager } from "../../util/SelectionManager"; +import { Cast, FieldValue, NumCast } from "../../../new_fields/Types"; +import { Opt } from "../../../new_fields/Doc"; +import { DocComponent } from "../DocComponent"; +import { makeInterface } from "../../../new_fields/Schema"; +import { positionSchema } from "./DocumentView"; +import { pageSchema } from "./ImageBox"; +import { ImageField, PdfField } from "../../../new_fields/URLField"; +import { InkingControl } from "../InkingControl"; /** ALSO LOOK AT: Annotation.tsx, Sticky.tsx * This method renders PDF and puts all kinds of functionalities such as annotation, highlighting, @@ -38,121 +42,58 @@ import React = require("react") * 4) another method: click on highlight first and then drag on your desired text * 5) To make another highlight, you need to reclick on the button * - * Draw: - * 1) click draw and select color. then just draw like there's no tomorrow. - * 2) once you finish drawing your masterpiece, just reclick on the draw button to end your drawing session. - * - * Pagination: - * 1) click on arrows. You'll notice that stickies will stay in those page. But... highlights won't. - * 2) to test this out, make few area/stickies and then click on next page then come back. You'll see that they are all saved. - * - * * written by: Andrew Kim */ -@observer -export class PDFBox extends React.Component<FieldViewProps> { - public static LayoutString() { return FieldView.LayoutString(PDFBox); } - private _mainDiv = React.createRef<HTMLDivElement>() - private _pdf = React.createRef<HTMLCanvasElement>(); +type PdfDocument = makeInterface<[typeof positionSchema, typeof pageSchema]>; +const PdfDocument = makeInterface(positionSchema, pageSchema); - //very useful for keeping track of X and y position throughout the PDF Canvas - private initX: number = 0; - private initY: number = 0; - private initPage: boolean = false; - - //checks if tool is on - private _toolOn: boolean = false; //checks if tool is on - private _pdfContext: any = null; //gets pdf context - private bool: Boolean = false; //general boolean debounce - private currSpan: any;//keeps track of current span (for highlighting) +@observer +export class PDFBox extends DocComponent<FieldViewProps, PdfDocument>(PdfDocument) { + public static LayoutString() { return FieldView.LayoutString(PDFBox); } - 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 _mainDiv = React.createRef<HTMLDivElement>(); + private renderHeight = 2400; - private _colorTool = React.createRef<HTMLButtonElement>(); //color button reference - private _currColor: string = "black"; //current color that user selected (for ink/pen) + @observable private _renderAsSvg = true; + @observable private _alt = false; - private _highlightTool = React.createRef<HTMLButtonElement>(); //highlighter button reference - private _highlightToolOn: boolean = false; - private _pdfCanvas: any; - private _reactionDisposer: Opt<IReactionDisposer>; + private _reactionDisposer?: IReactionDisposer; @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, 0); } + @computed private get curPage() { return NumCast(this.Document.curPage, 1); } + @computed private get thumbnailPage() { return NumCast(this.props.Document.thumbnailPage, -1); } componentDidMount() { + let wasSelected = false; this._reactionDisposer = reaction( - () => this.curPage, + () => this.props.isSelected(), () => { - if (this.curPage && this.initPage) { + if (this.curPage > 0 && this.curPage !== this.thumbnailPage && wasSelected && !this.props.isSelected()) { this.saveThumbnail(); - this._interactive = true; - } else { - if (this.curPage) - this.initPage = true; } + wasSelected = this._interactive = this.props.isSelected(); }, { fireImmediately: true }); } componentWillUnmount() { - if (this._reactionDisposer) { - this._reactionDisposer(); - } - } - - /** - * selection tool used for area highlighting (stickies). Kinda temporary - */ - selectionTool = () => { - this._toolOn = true; - } - /** - * when user draws on the canvas. When mouse pointer is down - */ - drawDown = (e: PointerEvent) => { - this.initX = e.offsetX; - this.initY = e.offsetY; - this._pdfContext.beginPath(); - this._pdfContext.lineTo(this.initX, this.initY); - this._pdfContext.strokeStyle = this._currColor; - this._pdfCanvas.addEventListener("pointermove", this.drawMove); - this._pdfCanvas.addEventListener("pointerup", this.drawUp); - - } - //when user drags - drawMove = (e: PointerEvent): void => { - //x and y mouse movement - let x = this.initX += e.movementX, - y = this.initY += e.movementY; - //connects the point - this._pdfContext.lineTo(x, y); - this._pdfContext.stroke(); + if (this._reactionDisposer) this._reactionDisposer(); } - drawUp = (e: PointerEvent) => { - this._pdfContext.closePath(); - this._pdfCanvas.removeEventListener("pointermove", this.drawMove); - this._pdfCanvas.removeEventListener("pointerdown", this.drawDown); - this._pdfCanvas.addEventListener("pointerdown", this.drawDown); - } - - /** * highlighting helper function */ 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"; @@ -160,31 +101,31 @@ 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) - child.addEventListener("mouseover", this.onEnter); //adds mouseover annotation handler + obj.spans.push(child); + // child.addEventListener("mouseover", this.onEnter); //adds mouseover annotation handler } - }) + }); } } } @@ -195,21 +136,21 @@ 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) - child.addEventListener("mouseover", this.onEnter); //adds mouseover annotation handler + temp.spans.push(child); + // child.addEventListener("mouseover", this.onEnter); //adds mouseover annotation handler } - }) + }); - }) + }); return temp; } @@ -222,29 +163,27 @@ 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 (!index) { - index = this._pageInfo.divs.indexOf(obj); - } + if (element === span && !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); } @@ -262,7 +201,7 @@ export class PDFBox extends React.Component<FieldViewProps> { this.makeEditableAndHighlight(color); } } catch (ex) { - this.makeEditableAndHighlight(color) + this.makeEditableAndHighlight(color); } } } @@ -271,11 +210,21 @@ export class PDFBox extends React.Component<FieldViewProps> { * controls the area highlighting (stickies) Kinda temporary */ onPointerDown = (e: React.PointerEvent) => { - if (this._toolOn) { - let mouse = e.nativeEvent; - this.initX = mouse.offsetX; - this.initY = mouse.offsetY; - + if (this.props.isSelected() && !InkingControl.Instance.selectedTool && e.buttons === 1) { + if (e.altKey) { + this._alt = true; + } else { + if (e.metaKey) { + e.stopPropagation(); + } + } + document.removeEventListener("pointerup", this.onPointerUp); + document.addEventListener("pointerup", this.onPointerUp); + } + if (this.props.isSelected() && e.buttons === 2) { + runInAction(() => this._alt = true); + document.removeEventListener("pointerup", this.onPointerUp); + document.addEventListener("pointerup", this.onPointerUp); } } @@ -283,135 +232,40 @@ export class PDFBox extends React.Component<FieldViewProps> { * controls area highlighting and partially highlighting. Kinda temporary */ @action - onPointerUp = (e: React.PointerEvent) => { - if (this._highlightToolOn) { + onPointerUp = (e: PointerEvent) => { + this._alt = false; + document.removeEventListener("pointerup", this.onPointerUp); + if (this.props.isSelected()) { this.highlight("rgba(76, 175, 80, 0.3)"); //highlights to this default color. - this._highlightToolOn = false; - } - if (this._toolOn) { - let mouse = e.nativeEvent; - let finalX = mouse.offsetX; - let finalY = mouse.offsetY; - let width = Math.abs(finalX - this.initX); //width - let height = Math.abs(finalY - this.initY); //height - - //these two if statements are bidirectional dragging. You can drag from any point to another point and generate sticky - if (finalX < this.initX) { - this.initX = finalX; - } - if (finalY < this.initY) { - this.initY = finalY; - } - - if (this._mainDiv.current) { - let sticky = <Sticky key={Utils.GenerateGuid()} Height={height} Width={width} X={this.initX} Y={this.initY} /> - this._pageInfo.area.push(sticky); - } - this._toolOn = false; } this._interactive = true; } - /** - * starts drawing the line when user presses down. - */ - onDraw = () => { - if (this._currTool != null) { - this._currTool.style.backgroundColor = "grey"; - } - - if (this._drawTool.current) { - this._currTool = this._drawTool.current; - if (this._drawToolOn) { - this._drawToolOn = false; - this._pdfCanvas.removeEventListener("pointerdown", this.drawDown); - this._pdfCanvas.removeEventListener("pointerup", this.drawUp); - this._pdfCanvas.removeEventListener("pointermove", this.drawMove); - this._drawTool.current.style.backgroundColor = "grey"; - } else { - this._drawToolOn = true; - this._pdfCanvas.addEventListener("pointerdown", this.drawDown); - this._drawTool.current.style.backgroundColor = "cyan"; - } - } - } - - - /** - * for changing color (for ink/pen) - */ - onColorChange = (e: React.PointerEvent) => { - if (e.currentTarget.innerHTML == "Red") { - this._currColor = "red"; - } else if (e.currentTarget.innerHTML == "Blue") { - this._currColor = "blue"; - } else if (e.currentTarget.innerHTML == "Green") { - this._currColor = "green"; - } else if (e.currentTarget.innerHTML == "Black") { - this._currColor = "black"; - } - - } - - - /** - * For highlighting (text drag highlighting) - */ - onHighlight = () => { - this._drawToolOn = false; - if (this._currTool != null) { - this._currTool.style.backgroundColor = "grey"; - } - if (this._highlightTool.current) { - this._currTool = this._drawTool.current; - if (this._highlightToolOn) { - this._highlightToolOn = false; - this._highlightTool.current.style.backgroundColor = "grey"; - } else { - this._highlightToolOn = true; - this._highlightTool.current.style.backgroundColor = "orange"; - } - } - } - @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); - }) + let nwidth = FieldValue(this.Document.nativeWidth, 0); + let nheight = FieldValue(this.Document.nativeHeight, 0); + htmlToImage.toPng(this._mainDiv.current!, { width: nwidth, height: nheight, quality: 1 }) + .then(action((dataUrl: string) => { + this.props.Document.thumbnail = new ImageField(new URL(dataUrl)); + this.props.Document.thumbnailPage = FieldValue(this.Document.curPage, -1); + this._renderAsSvg = true; + })) .catch(function (error: any) { console.error('oops, something went wrong!', error); }); - }, 1000); + }, 1250); } @action onLoaded = (page: any) => { - if (this._mainDiv.current) { - this._mainDiv.current.childNodes.forEach((element) => { - if (element.nodeName == "DIV") { - element.childNodes[0].childNodes.forEach((e) => { - - if (e instanceof HTMLCanvasElement) { - this._pdfCanvas = e; - 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.numPages = page._transport.numPages; + if (this._perPageInfo.length === 0) { //Makes sure it only runs once + this._perPageInfo = [...Array(page._transport.numPages)]; } this._loaded = true; } @@ -419,34 +273,40 @@ export class PDFBox extends React.Component<FieldViewProps> { @action setScaling = (r: any) => { // 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 + // also, the native dimensions could be different for different pages of the canvas // so this design is flawed. - var nativeWidth = this.props.doc.GetNumber(KeyStore.NativeWidth, 0); - if (!this.props.doc.GetNumber(KeyStore.NativeHeight, 0)) { - this.props.doc.SetNumber(KeyStore.NativeHeight, nativeWidth * r.entry.height / r.entry.width); - } - if (!this.props.doc.GetT(KeyStore.Thumbnail, ImageField)) { - this.saveThumbnail(); + var nativeWidth = FieldValue(this.Document.nativeWidth, 0); + if (!FieldValue(this.Document.nativeHeight, 0)) { + var nativeHeight = nativeWidth * r.offset.height / r.offset.width; + this.props.Document.height = nativeHeight / nativeWidth * FieldValue(this.Document.width, 0); + this.props.Document.nativeHeight = nativeHeight; } } - + @computed + get pdfPage() { + return <Page height={this.renderHeight} renderTextLayer={false} pageNumber={this.curPage} onLoadSuccess={this.onLoaded} />; + } @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; + trace(); + let pdfUrl = Cast(this.props.Document[this.props.fieldKey], PdfField); + if (!pdfUrl) { + return <p>No pdf url to render</p>; + } + let pdfpage = this.pdfPage; + let body = this.Document.nativeHeight ? + pdfpage : + <Measure offset onResize={this.setScaling}> + {({ measureRef }) => + <div className="pdfBox-page" ref={measureRef}> + {pdfpage} + </div> + } + </Measure>; + let xf = (this.Document.nativeHeight || 0) / this.renderHeight; return <div className="pdfBox-contentContainer" key="container" style={{ transform: `scale(${xf}, ${xf})` }}> - <Document file={window.origin + "/corsProxy/" + `${pdfUrl}`}> - <Measure onResize={this.setScaling}> - {({ measureRef }) => - <div className="pdfBox-page" ref={measureRef}> - <Page height={renderHeight} pageNumber={page} onLoadSuccess={this.onLoaded} /> - </div> - } - </Measure> + <Document file={window.origin + RouteStore.corsProxy + `/${pdfUrl.url}`} renderMode={this._renderAsSvg ? "svg" : "canvas"}> + {body} </Document> </div >; } @@ -454,34 +314,35 @@ 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 = Cast(this.props.Document[this.props.fieldKey], PdfField); + if ((!this._interactive && proxy) || !pdfUrl) { 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 field = this.props.doc.Get(KeyStore.Thumbnail); - if (field) { - let path = field == FieldWaiting ? "https://image.flaticon.com/icons/svg/66/66163.svg" : - field instanceof ImageField ? field.Data.href : "http://cs.brown.edu/people/bcz/prairie.jpg"; + let thumbField = this.props.Document.thumbnail; + if (thumbField) { + let path = this.thumbnailPage !== this.curPage ? "https://image.flaticon.com/icons/svg/66/66163.svg" : + thumbField instanceof ImageField ? thumbField.url.href : "http://cs.brown.edu/people/bcz/prairie.jpg"; return <img src={path} width="100%" />; } return (null); } - + @action onKeyDown = (e: React.KeyboardEvent) => e.key === "Alt" && (this._alt = true); + @action onKeyUp = (e: React.KeyboardEvent) => e.key === "Alt" && (this._alt = false); render() { + trace(); + let classname = "pdfBox-cont" + (this.props.isSelected() && !InkingControl.Instance.selectedTool && !this._alt ? "-interactive" : ""); return ( - <div className="pdfBox-cont" ref={this._mainDiv} onPointerDown={this.onPointerDown} onPointerUp={this.onPointerUp} > + <div className={classname} tabIndex={0} ref={this._mainDiv} onPointerDown={this.onPointerDown} onKeyDown={this.onKeyDown} onKeyUp={this.onKeyUp} > {this.pdfRenderer} </div > ); |