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-rw-r--r--src/views/nodes/ImageBox.tsx455
1 files changed, 304 insertions, 151 deletions
diff --git a/src/views/nodes/ImageBox.tsx b/src/views/nodes/ImageBox.tsx
index 2f7cbbcc4..f53d94a6d 100644
--- a/src/views/nodes/ImageBox.tsx
+++ b/src/views/nodes/ImageBox.tsx
@@ -1,247 +1,400 @@
-
-import Lightbox from 'react-image-lightbox';
-import 'react-image-lightbox/style.css'; // This only needs to be imported once in your app
-import { SelectionManager } from "../../util/SelectionManager";
+import 'react-image-lightbox/style.css';
import "./ImageBox.scss";
import React = require("react")
-import { ImageField } from '../../fields/ImageField';
import { FieldViewProps, FieldView } from './FieldView';
-import { CollectionFreeFormDocumentView } from './CollectionFreeFormDocumentView';
-import { FieldWaiting } from '../../fields/Field';
import { observer } from "mobx-react"
import { observable, action } from 'mobx';
import 'react-pdf/dist/Page/AnnotationLayer.css'
//@ts-ignore
import { Document, Page, PDFPageProxy, PageAnnotation} from "react-pdf";
import { Utils } from '../../Utils';
-import { any } from 'prop-types';
-import { Sticky } from './Sticky';
-
+import { Sticky } from './Sticky'; //you should look at sticky and annotation, because they are used here
+import { Annotation } from './Annotation';
+
+/** ALSO LOOK AT: Annotation.tsx, Sticky.tsx
+ *
+ * Ok, so I know I built PDFNode on a ImageBox, but this method works... maybe make a duplicate
+ * and call it PDFNode.
+ * This method renders PDF and puts all kinds of functionalities such as annotation, highlighting,
+ * area selection (I call it stickies), embedded ink node for directly annotating using a pen or
+ * mouse, and pagination.
+ *
+ * Clearly, everything works perfectly. No bugs. Might as well publish it.
+ *
+ * ps watch out for some bugs. When highlighting, just highlight a section of one line... do not multiline highlight... plz
+ *
+ *
+ *
+ *
+ *
+ * HOW TO USE:
+ * AREA selection:
+ * 1) Click on Area button.
+ * 2) click on any part of the PDF, and drag to get desired sized area shape
+ * 3) You can write on the area (hence the reason why it's called sticky)
+ * 4) to make another area, you need to click on area button AGAIN.
+ *
+ * HIGHLIGHT: (Buggy. No multiline/multidiv text highlighting for now...)
+ * 1) just click and drag on a text
+ * 2) click highlight
+ * 3) for annotation, just pull your cursor over to that text
+ * 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 ImageBox extends React.Component<FieldViewProps> {
public static LayoutString() { return FieldView.LayoutString("ImageBox"); }
- private _ref: React.RefObject<HTMLDivElement>;
-
private _mainDiv = React.createRef<HTMLDivElement>()
+ private _pdf = React.createRef<HTMLCanvasElement>();
+
+ //very useful for keeping track of X and y position throughout the PDF Canvas
+ private initX:number = 0;
+ private initY:number = 0;
- private _downX: number = 0;
- private _downY: number = 0;
- private _lastTap: number = 0;
-
- @observable
- private stickies:any[] = []
-
- @observable private _photoIndex: number = 0;
- @observable private _isOpen: boolean = false;
-
- constructor(props: FieldViewProps) {
- super(props);
-
- this._ref = React.createRef();
- this.state = {
- photoIndex: 0,
- isOpen: false,
- };
- }
-
- componentDidMount() {
- }
-
- componentWillUnmount() {
- }
-
+ //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)
-
+ 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 _colorTool = React.createRef<HTMLButtonElement>(); //color button reference
+ private _currColor:string = "black"; //current color that user selected (for ink/pen)
+
+ private _highlightTool = React.createRef<HTMLButtonElement>(); //highlighter button reference
+ private _highlightToolOn:boolean = false;
+
+ @observable private stickies:any[] = [] //for storing CURRENT stickies
+ @observable private page:number = 1; //default is the first page.
+ @observable private numPage:number = 1; //default number of pages
+ @observable private stickiesPerPage: any = null; //for indexing stickies for EVERY PAGE
+ @observable private annotations:any[] = []; //keeps track of annotations
+
+ /**
+ * for pagination backwards
+ */
@action
onPageBack = () => {
if (this.page > 1){
- this.page -= 1;
- this.stickies = this.stickiesPerPage[this.page - 1];
+ this.page -= 1;
+ this.stickiesPerPage[this.page] = this.stickies; //stores previous sticky and indexes to stickiesPerPage
+ this.stickies = []; //sets stickies to null array
+ if (this.stickies){//checks stickies is null or not
+ this.stickies = this.stickiesPerPage[this.page - 1]; //pulls up stickies for this page
+ }
+
}
}
+ /**
+ * for pagination forwards
+ */
@action
onPageForward = () => {
if (this.page < this.numPage){
this.page += 1;
- this.stickies = this.stickiesPerPage[this.page - 1];
+ this.stickiesPerPage[this.page - 2] = this.stickies; //stores previous sticky and indexes to stickiesPerPage
+ this.stickies = []; //sets stickies to null array
+ if (this.stickiesPerPage[this.page - 1]){
+ this.stickies = this.stickiesPerPage[this.page - 1]; //pulls up sticky for this page
+ }
}
}
-
-
- @observable
- searchText:string = '';
-
- @observable
- page:number = 1; //default is the first page.
-
- @observable
- numPage:number = 1; //default number of pages
-
- @observable
- stickiesPerPage: any = [...Array(this.numPage)].map(() => Array(1)); //makes 2d array for storage
-
- private textContent:any = null;
-
- private initX:number = 0;
- private initY:number = 0;
-
- private _toolOn:boolean = false;
-
-
+
+ /**
+ * 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;
+ document.addEventListener("pointermove", this.drawMove);
+ document.addEventListener("pointerup", this.drawUp);
+
+ }
- private _highlighter:boolean = false;
-
-
- onPointerDown = (e: React.PointerEvent) => {
-
- if (this._toolOn){
- let mouse = e.nativeEvent;
- this.initX = mouse.offsetX;
- this.initY = mouse.offsetY;
- }
- if (this._highlighter){
-
- }
+ //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();
}
+ drawUp = (e:PointerEvent) => {
+ this._pdfContext.closePath();
+ document.removeEventListener("pointermove", this.drawMove);
+ document.removeEventListener("pointerdown", this.drawDown);
+ document.addEventListener("pointerdown", this.drawDown);
+ }
- makeEditableAndHighlight = (colour:string) => {
+
+ /**
+ * highlighting helper function
+ */
+ makeEditableAndHighlight = (colour:string) => {
var range, sel = window.getSelection();
if (sel.rangeCount && sel.getRangeAt) {
range = sel.getRangeAt(0);
}
document.designMode = "on";
+ if (!document.execCommand("HiliteColor", false, colour)) {
+ document.execCommand("HiliteColor", false, colour);
+ }
+
if (range) {
sel.removeAllRanges();
sel.addRange(range);
- }
- if (!document.execCommand("HiliteColor", false, colour)) {
- document.execCommand("HIliteColor", false, colour);
+ let element = range.commonAncestorContainer.parentElement
+ if (element){
+ let childNodes = element.childNodes;
+ childNodes.forEach((e) => {
+ if (e.nodeName == "SPAN"){
+ let span = e;
+ span.addEventListener("mouseover", this.onEnter);
+ }
+ })
+ }
}
document.designMode = "off";
}
+ /**
+ * when the cursor enters the highlight, it pops out annotation. ONLY WORKS FOR SINGLE DIV LINES
+ */
+ @action
+ onEnter = (e:any) => {
+ let span:HTMLSpanElement = e.toElement;
+ this.currSpan = span;
+ if (e.toElement instanceof HTMLSpanElement){
+ this.bool = true;
+ this.currSpan = span;
+ if(span.children.length == 0){ //this is why it only works for one div text lines... needs fix
+ if(span.offsetParent){
+ let div = span.offsetParent;
+ //@ts-ignore
+ let divX = div.style.left
+ //@ts-ignore
+ 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 = {this.currSpan} X = {divX} Y = {divY - 300} />
+ this.annotations.push(annotation);
+ }
+ }
+ }
+ }
- highlight = (colour:string) => {
- var range, sel;
+ /**
+ * highlight function for highlighting actual text. This works fine.
+ */
+ highlight = (color:string) => {
if (window.getSelection()) {
try {
- console.log(document.getSelection())
-
-
- if (!document.execCommand("HiliteColor", false, colour)) {
- this.makeEditableAndHighlight(colour);
- } else if (document.execCommand("HiliteColor", false, "rgba(76, 175, 80, 0.3)")) {
- this.makeEditableAndHighlight("black");
+ if (!document.execCommand("hiliteColor", false, color)) {
+ this.makeEditableAndHighlight(color);
}
+ //when the color is not the highlight color
} catch (ex) {
- this.makeEditableAndHighlight(colour)
+ this.makeEditableAndHighlight(color)
}
-
}
}
+ /**
+ * 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;
+
+ }
+ }
+
+ /**
+ * controls area highlighting and partially highlighting. Kinda temporary
+ */
@action
onPointerUp = (e:React.PointerEvent) => {
- this.highlight("rgba(76, 175, 80, 0.3)");
-
+ if (this._highlightToolOn){
+ 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);
- let height = Math.abs(finalY - this.initY);
-
+ 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.stickies.push(sticky);
- //this.stickiesPerPage[this.page - 1].push(sticky);
+ let sticky = <Sticky key ={Utils.GenerateGuid()} Height = {height} Width = {width} X = {this.initX} Y = {this.initY}/>
+ this.stickies.push(sticky);
}
-
this._toolOn = false;
}
}
+
+ /**
+ * starts drawing the line when user presses down.
+ */
+ onDraw = () => {
+ if (this._currTool != null){
+ this._currTool.style.backgroundColor = "grey";
+ }
+ this._highlightToolOn = false;
+ if (this._drawTool.current){
+ this._currTool = this._drawTool.current;
+ if (this._drawToolOn){
+ this._drawToolOn = false;
+ document.removeEventListener("pointerdown", this.drawDown);
+ document.removeEventListener("pointerup", this.drawUp);
+ document.removeEventListener("pointermove", this.drawMove);
+ this._drawTool.current.style.backgroundColor = "grey";
+ } else {
+ this._drawToolOn = true;
+ document.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";
+ }
+
+ }
- displaySticky = () => {
- try{
- this.stickies.filter( () => {
- return this.stickies[this.stickies.length - 1]
- }).map( (element: any) => {
- return element
- })
- } catch (ex) {
- console.log(ex); //should be null
+
+ /**
+ * 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.highlight("rgba(76, 175, 80, 0.3)");
+ this._highlightTool.current.style.backgroundColor = "orange";
+ }
}
}
+
+
+ /**
+ * renders whole lot of shets, including pdf, stickies, and annotations.
+ */
+
render() {
return (
<div ref = {this._mainDiv}
onPointerDown ={this.onPointerDown}
onPointerUp = {this.onPointerUp}
>
- { this.stickies.filter( () => {
+ {this.stickies.filter( () => { //for loading stickies (area)
return this.stickies[this.stickies.length - 1]
}).map( (element: any) => {
return element
})
- }
-
-
-
- }
- }
-
-
+ }
+ {this.annotations.filter( () => { //for loading annotations
+ return this.annotations[this.annotations.length - 1]
+ }).map( (element: any) => {
+ return element
+ })
+ }
+
<button onClick = {this.onPageBack}>{"<"}</button>
<button onClick = {this.onPageForward}>{">"}</button>
<button onClick ={this.selectionTool}>{"Area"}</button>
- <Document
- file={Utils.pdf_example}
-
- onLoadError={
- (error: any) => {
- console.log(error);
- }
- }
- >
+ <button style ={{color: "white", backgroundColor: "grey"}} onClick = {this.onHighlight} ref = {this._highlightTool}>Highlight</button>
+ <button style ={{color: "white", backgroundColor: "grey"}} ref = {this._drawTool} onClick = {this.onDraw}>{"Draw"}</button>
+ <button ref = {this._colorTool} onPointerDown = {this.onColorChange}>{"Red"}</button>
+ <button ref = {this._colorTool} onPointerDown = {this.onColorChange}>{"Blue"}</button>
+ <button ref = {this._colorTool} onPointerDown = {this.onColorChange}>{"Green"}</button>
+ <button ref = {this._colorTool} onPointerDown = {this.onColorChange}>{"Black"}</button>
+
+ <Document file={Utils.pdf_example}>
<Page
pageNumber={this.page}
-
onLoadSuccess={
- (page: PDFPageProxy) => {
- page.getTextContent().then((obj:any) => {
- this.textContent = obj
- });
+ (page:any) => {
+ if (this._mainDiv.current){
+ this._mainDiv.current.childNodes.forEach((element) => {
+ if (element.nodeName == "DIV"){
+ element.childNodes[0].childNodes.forEach((e) => {
+ if (e.nodeName == "CANVAS"){
+ //@ts-ignore
+ this._pdfContext = e.getContext("2d")
+ }
+ })
+ }
+ })
+ }
this.numPage = page.transport.numPages
-
+ if (this.stickiesPerPage == null){ //only runs once, when stickiesPerPage is null
+ this.stickiesPerPage = [...Array(this.numPage)].map(() => Array(1));
+ }
}
}
-
- onGetAnnotationSuccess = {
- (anno: any) => {
- console.log(anno)
- }
- }
-
-
-
- />
-
-
-
-
+ />
</Document>
-
-
</div>
);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-10-09 23:02:56 +0000