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import * as React from "react";
import * as ReactDOM from "react-dom";
import "./Timeline.scss";
import { CollectionSubView } from "../collections/CollectionSubView";
import { Document, listSpec, createSchema, makeInterface, defaultSpec } from "../../../new_fields/Schema";
import { observer} from "mobx-react";
import { Track } from "./Track";
import { observable, reaction, action, IReactionDisposer, observe, IObservableArray, computed, toJS, Reaction, IObservableObject } from "mobx";
import { Cast } from "../../../new_fields/Types";
import { SelectionManager } from "../../util/SelectionManager";
import { List } from "../../../new_fields/List";
import { Self } from "../../../new_fields/FieldSymbols";
import { Doc, DocListCast } from "../../../new_fields/Doc";
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { faCircle, faPlayCircle, faBackward, faForward, faGripLines } from "@fortawesome/free-solid-svg-icons";
import { DocumentContentsView } from "./DocumentContentsView";
@observer
export class Timeline extends CollectionSubView(Document){
private readonly DEFAULT_CONTAINER_HEIGHT:number = 300;
private readonly MIN_CONTAINER_HEIGHT:number = 205;
private readonly MAX_CONTAINER_HEIGHT:number = 800;
@observable private _scrubberbox = React.createRef<HTMLDivElement>();
@observable private _trackbox = React.createRef<HTMLDivElement>();
@observable private _titleContainer = React.createRef<HTMLDivElement>();
@observable private _currentBarX:number = 0;
@observable private _windSpeed:number = 1;
@observable private _isPlaying:boolean = false;
@observable private _boxLength:number = 0;
@observable private _containerHeight:number = this.DEFAULT_CONTAINER_HEIGHT;
@observable private _nodes:List<Doc> = new List<Doc>();
@observable private _time = 100000; //DEFAULT
@observable private _infoContainer = React.createRef<HTMLDivElement>();
@observable private _ticks: number[] = [];
@action
componentDidMount(){
let scrubber = this._scrubberbox.current!;
this._boxLength = scrubber.getBoundingClientRect().width;
let children = Cast(this.props.Document[this.props.fieldKey], listSpec(Doc));
if (!children) {
return;
}
let childrenList = ((children[Self] as any).__fields) as List<Doc>;
this._nodes = (childrenList) as List<Doc>;
reaction( () => this._time, time => {
let infoContainer = this._infoContainer.current!;
let trackbox = this._trackbox.current!;
this._boxLength = infoContainer.scrollWidth;
trackbox.style.width = `${this._boxLength}`;
});
//check if this is a video frame
for (let i = 0; i < this._time; ) {
this._ticks.push(i);
i += 1000;
}
}
@action
componentDidUpdate(){
this._time = 100001;
}
componentWillUnmount(){
}
//for playing
@action
onPlay = async (e: React.MouseEvent) => {
if (this._isPlaying) {
this._isPlaying = false;
} else {
this._isPlaying = true;
this.changeCurrentX();
}
}
@action
changeCurrentX = () => {
if (this._currentBarX === this._boxLength && this._isPlaying) {
this._currentBarX = 0;
}
if (this._currentBarX <= this._boxLength && this._isPlaying) {
this._currentBarX = this._currentBarX + this._windSpeed;
setTimeout(this.changeCurrentX, 15);
}
}
@action
windForward = (e: React.MouseEvent) => {
if (this._windSpeed < 64) { //max speed is 32
this._windSpeed = this._windSpeed * 2;
}
}
@action
windBackward = (e: React.MouseEvent) => {
if (this._windSpeed > 1 / 16) { // min speed is 1/8
this._windSpeed = this._windSpeed / 2;
}
}
//for scrubber action
@action
onScrubberDown = (e:React.PointerEvent) => {
e.preventDefault();
e.stopPropagation();
document.addEventListener("pointermove", this.onScrubberMove);
document.addEventListener("pointerup", () => {
document.removeEventListener("pointermove", this.onScrubberMove);
});
}
@action
onScrubberMove = (e: PointerEvent) => {
e.preventDefault();
e.stopPropagation();
let scrubberbox = this._scrubberbox.current!;
let left = scrubberbox.getBoundingClientRect().left;
let offsetX = Math.round(e.clientX - left);
this._currentBarX = offsetX;
}
@action
onScrubberClick = (e:React.MouseEvent) => {
e.preventDefault();
e.stopPropagation();
let scrubberbox = this._scrubberbox.current!;
let offset = scrubberbox.scrollLeft + e.clientX - scrubberbox.getBoundingClientRect().left;
this._currentBarX = offset;
;
}
@action
toTime = (time:number):string => {
const inSeconds = time / 1000;
let min:(string|number) = Math.floor(inSeconds / 60);
let sec:(string|number) = inSeconds % 60;
if (Math.floor(sec/10) === 0){
sec = "0" + sec;
}
return `${min}:${sec}`;
}
@action
onPanDown = (e:React.PointerEvent) => {
e.preventDefault();
e.stopPropagation();
document.addEventListener("pointermove", this.onPanMove);
document.addEventListener("pointerup", () => {
document.removeEventListener("pointermove", this.onPanMove);
});
}
@action
onPanMove = (e:PointerEvent) => {
e.preventDefault();
e.stopPropagation();
let infoContainer = this._infoContainer.current!;
let trackbox = this._trackbox.current!;
let titleContainer = this._titleContainer.current!;
infoContainer.scrollLeft = infoContainer.scrollLeft - e.movementX;
trackbox.scrollTop = trackbox.scrollTop - e.movementY;
titleContainer.scrollTop = titleContainer.scrollTop - e.movementY;
}
@action
onResizeDown = (e:React.PointerEvent) => {
e.preventDefault();
e.stopPropagation();
document.addEventListener("pointermove", this.onResizeMove);
document.addEventListener("pointerup", () => {
document.removeEventListener("pointermove", this.onResizeMove);
});
}
@action
onResizeMove = (e:PointerEvent) => {
e.preventDefault();
e.stopPropagation();
let offset = e.clientY - this._containerHeight;
if (this._containerHeight + offset <= this.MIN_CONTAINER_HEIGHT ){
this._containerHeight = this.MIN_CONTAINER_HEIGHT;
} else if (this._containerHeight + offset >= this.MAX_CONTAINER_HEIGHT){
this._containerHeight = this.MAX_CONTAINER_HEIGHT;
} else {
this._containerHeight += offset;
}
}
@action
minimize = (e:React.MouseEvent) => {
this._containerHeight = 0;
}
render(){
return (
<div className="timeline-container" style={{height:`${this._containerHeight}px`}}>
<div className="toolbox">
<div onClick={this.windBackward}> <FontAwesomeIcon icon={faBackward} size="2x"/> </div>
<div onClick={this.onPlay}> <FontAwesomeIcon icon={faPlayCircle} size="2x"/> </div>
<div onClick={this.windForward}> <FontAwesomeIcon icon={faForward} size="2x"/> </div>
<div>
<p>Timeline Overview</p>
<div className="overview"></div>
</div>
</div>
<div className="info-container" ref ={this._infoContainer}>
<div className="scrubberbox" ref ={this._scrubberbox} onClick={this.onScrubberClick}>
{this._ticks.map(element => {return <div className="tick" style={{transform:`translate(${element / 20}px)`, position:"absolute", pointerEvent:"none"}}> <p>{this.toTime(element)}</p></div>})}
</div>
<div className="scrubber" onPointerDown = {this.onScrubberDown} style={{transform:`translate(${this._currentBarX}px)`}}>
<div className="scrubberhead"></div>
</div>
<div className="trackbox" ref={this._trackbox} onPointerDown={this.onPanDown}>
{this._nodes.map(doc => {return <Track node={(doc as any).value() as Doc} currentBarX = {this._currentBarX}/>;})}
</div>
</div>
<div className="title-container" ref={this._titleContainer}>
{this._nodes.map(doc => {return <div className="datapane">
<p>{((doc as any).value() as Doc).title}</p>
</div>;})}
</div>
<div onPointerDown ={this.onResizeDown}>
<FontAwesomeIcon className="resize" icon={faGripLines} />
</div>
</div>
);
}
}
|
