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import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { action, computed, IReactionDisposer, observable, reaction, runInAction } from 'mobx';
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 { makeInterface } from "../../../new_fields/Schema";
import { ScriptField } from '../../../new_fields/ScriptField';
import { BoolCast, Cast, NumCast } from "../../../new_fields/Types";
import { PdfField } from "../../../new_fields/URLField";
import { KeyCodes } from '../../northstar/utils/KeyCodes';
import { CompileScript } from '../../util/Scripting';
import { DocComponent } from "../DocComponent";
import { InkingControl } from "../InkingControl";
import { PDFViewer } from "../pdf/PDFViewer";
import { positionSchema } from "./DocumentView";
import { FieldView, FieldViewProps } from './FieldView';
import { pageSchema } from "./ImageBox";
import "./PDFBox.scss";
import React = require("react");
type PdfDocument = makeInterface<[typeof positionSchema, typeof pageSchema]>;
const PdfDocument = makeInterface(positionSchema, pageSchema);
export const handleBackspace = (e: React.KeyboardEvent) => { if (e.keyCode === KeyCodes.BACKSPACE) e.stopPropagation(); };
@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 containingCollectionDocument() { return this.props.ContainingCollectionView && this.props.ContainingCollectionView.props.Document; }
@computed get dataDoc() { return BoolCast(this.props.Document.isTemplate) && this.props.DataDoc ? this.props.DataDoc : this.props.Document; }
@computed get fieldExtensionDoc() { return Doc.resolvedFieldDataDoc(this.props.DataDoc ? this.props.DataDoc : this.props.Document, this.props.fieldKey, "true"); }
private _mainCont: React.RefObject<HTMLDivElement> = React.createRef();
private _reactionDisposer?: IReactionDisposer;
private _keyValue: string = "";
private _valueValue: string = "";
private _scriptValue: string = "";
private _keyRef: React.RefObject<HTMLInputElement> = React.createRef();
private _valueRef: React.RefObject<HTMLInputElement> = React.createRef();
private _scriptRef: React.RefObject<HTMLInputElement> = React.createRef();
componentDidMount() {
this.props.setPdfBox && this.props.setPdfBox(this);
const pdfUrl = Cast(this.props.Document.data, 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" })
);
}
componentWillUnmount() {
this._reactionDisposer && this._reactionDisposer();
}
public GetPage() {
return Math.floor(NumCast(this.props.Document.panY) / NumCast(this.dataDoc.nativeHeight)) + 1;
}
@action
public BackPage() {
let cp = Math.ceil(NumCast(this.props.Document.panY) / NumCast(this.dataDoc.nativeHeight)) + 1;
cp = cp - 1;
if (cp > 0) {
this.props.Document.curPage = cp;
this.props.Document.panY = (cp - 1) * NumCast(this.dataDoc.nativeHeight);
}
}
@action
public GotoPage(p: number) {
if (p > 0 && p <= NumCast(this.props.Document.numPages)) {
this.props.Document.curPage = p;
this.props.Document.panY = (p - 1) * NumCast(this.dataDoc.nativeHeight);
}
}
@action
public ForwardPage() {
let cp = this.GetPage() + 1;
if (cp <= NumCast(this.props.Document.numPages)) {
this.props.Document.curPage = cp;
this.props.Document.panY = (cp - 1) * NumCast(this.dataDoc.nativeHeight);
}
}
@action
setPanY = (y: number) => {
this.containingCollectionDocument && (this.containingCollectionDocument.panY = y);
}
@action
private applyFilter = () => {
let scriptText = this._scriptValue.length > 0 ? this._scriptValue :
this._keyValue.length > 0 && this._valueValue.length > 0 ?
`return this.${this._keyValue} === ${this._valueValue}` : "return true";
let script = CompileScript(scriptText, { params: { this: Doc.name } });
script.compiled && (this.props.Document.filterScript = new ScriptField(script));
}
scrollTo = (y: number) => {
this._mainCont.current && this._mainCont.current.scrollTo({ top: Math.max(y - (this._mainCont.current.offsetHeight / 2), 0), behavior: "auto" });
}
private resetFilters = () => {
this._keyValue = this._valueValue = "";
this._scriptValue = "return true";
this._keyRef.current && (this._keyRef.current.value = "");
this._valueRef.current && (this._valueRef.current.value = "");
this._scriptRef.current && (this._scriptRef.current.value = "");
this.applyFilter();
}
private newKeyChange = (e: React.ChangeEvent<HTMLInputElement>) => this._keyValue = e.currentTarget.value;
private newValueChange = (e: React.ChangeEvent<HTMLInputElement>) => this._valueValue = e.currentTarget.value;
private newScriptChange = (e: React.ChangeEvent<HTMLInputElement>) => this._scriptValue = e.currentTarget.value;
settingsPanel() {
return !this.props.active() ? (null) :
(<div className="pdfBox-settingsCont" onPointerDown={(e) => e.stopPropagation()}>
<button className="pdfBox-settingsButton" onClick={action(() => this._flyout = !this._flyout)} title="Open Annotation Settings"
style={{ marginTop: `${this.containingCollectionDocument ? NumCast(this.containingCollectionDocument.panY) : 0}px` }}>
<div className="pdfBox-settingsButton-arrow"
style={{
borderTop: `25px solid ${this._flyout ? "#121721" : "transparent"}`,
borderBottom: `25px solid ${this._flyout ? "#121721" : "transparent"}`,
borderRight: `25px solid ${this._flyout ? "transparent" : "#121721"}`,
transform: `scaleX(${this._flyout ? -1 : 1})`
}} />
<div className="pdfBox-settingsButton-iconCont">
<FontAwesomeIcon style={{ color: "white" }} icon="cog" size="3x" />
</div>
</button>
<div className="pdfBox-settingsFlyout" style={{ left: `${this._flyout ? -600 : 100}px` }} >
<div className="pdfBox-settingsFlyout-title">
Annotation View Settings
</div>
<div className="pdfBox-settingsFlyout-kvpInput">
<input placeholder="Key" className="pdfBox-settingsFlyout-input" onKeyDown={handleBackspace} onChange={this.newKeyChange}
style={{ gridColumn: 1 }} ref={this._keyRef} />
<input placeholder="Value" className="pdfBox-settingsFlyout-input" onKeyDown={handleBackspace} 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} />
</div>
<div className="pdfBox-settingsFlyout-kvpInput">
<button style={{ gridColumn: 1 }} onClick={this.resetFilters}>
<FontAwesomeIcon style={{ color: "white" }} icon="trash" size="lg" />
Reset Filters
</button>
<button style={{ gridColumn: 3 }} onClick={this.applyFilter}>
<FontAwesomeIcon style={{ color: "white" }} icon="check" size="lg" />
Apply
</button>
</div>
</div>
</div>);
}
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;
}
}
@action
onScroll = (e: React.UIEvent<HTMLDivElement>) => {
if (e.currentTarget && this.containingCollectionDocument) {
this.containingCollectionDocument.panTransformType = "None";
this.containingCollectionDocument.panY = e.currentTarget.scrollTop;
}
}
render() {
const pdfUrl = Cast(this.props.Document.data, PdfField);
let classname = "pdfBox-cont" + (this.props.active() && !InkingControl.Instance.selectedTool && !this._alt ? "-interactive" : "");
return (!(pdfUrl instanceof PdfField) || !this._pdf ?
<div>{`pdf, ${this.props.Document.data}, not found`}</div> :
<div className={classname}
onScroll={this.onScroll}
style={{ marginTop: `${this.containingCollectionDocument ? NumCast(this.containingCollectionDocument.panY) : 0}px` }}
ref={this._mainCont}>
<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}
addDocument={this.props.addDocument}
fieldKey={this.props.fieldKey} fieldExtensionDoc={this.fieldExtensionDoc} />
{this.settingsPanel()}
</div>);
}
}
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