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import React = require("react");
import { Touchable } from "./Touchable";
import { observer } from "mobx-react";
import "./GestureOverlay.scss";
import { computed, observable, action, runInAction } from "mobx";
// import { CreatePolyline } from "./InkingStroke";
import { GestureUtils } from "../../pen-gestures/GestureUtils";
import { InteractionUtils } from "../util/InteractionUtils";
import { InkingControl } from "./InkingControl";
import { InkTool } from "../../new_fields/InkField";
import { Doc } from "../../new_fields/Doc";
import { LinkManager } from "../util/LinkManager";
import { DocUtils } from "../documents/Documents";
import { undoBatch } from "../util/UndoManager";
import { Scripting } from "../util/Scripting";
import { FieldValue, Cast } from "../../new_fields/Types";
import { CurrentUserUtils } from "../../server/authentication/models/current_user_utils";
import Palette from "./Palette";
import MobileInterface from "../../mobile/MobileInterface";
import { MainView } from "./MainView";
import { DocServer } from "../DocServer";
import { GestureContent, MobileInkOverlayContent } from "../../server/Message";
import { Point } from "../northstar/model/idea/idea";
import MobileInkOverlay from "../../mobile/MobileInkOverlay";
@observer
export default class GestureOverlay extends Touchable {
static Instance: GestureOverlay;
@observable private _points: { X: number, Y: number }[] = [];
@observable private _palette?: JSX.Element;
@observable public Color: string = "rgb(244, 67, 54)";
@observable public Width: number = 5;
@observable private showMobileInkOverlay: boolean = false;
private _d1: Doc | undefined;
private thumbIdentifier?: number;
constructor(props: Readonly<{}>) {
super(props);
GestureOverlay.Instance = this;
}
@action
handleHandDown = (e: React.TouchEvent) => {
const fingers = InteractionUtils.GetMyTargetTouches(e, this.prevPoints, true);
const thumb = fingers.reduce((a, v) => a.clientY > v.clientY ? a : v, fingers[0]);
this.thumbIdentifier = thumb?.identifier;
const others = fingers.filter(f => f !== thumb);
const minX = Math.min(...others.map(f => f.clientX));
const minY = Math.min(...others.map(f => f.clientY));
// const t = this.getTransform().transformPoint(minX, minY);
// const th = this.getTransform().transformPoint(thumb.clientX, thumb.clientY);
const thumbDoc = FieldValue(Cast(CurrentUserUtils.setupThumbDoc(CurrentUserUtils.UserDocument), Doc));
if (thumbDoc) {
this._palette = <Palette x={minX} y={minY} thumb={[thumb.clientX, thumb.clientY]} thumbDoc={thumbDoc} />;
}
document.removeEventListener("touchmove", this.onTouch);
document.removeEventListener("touchmove", this.handleHandMove);
document.addEventListener("touchmove", this.handleHandMove);
document.removeEventListener("touchend", this.handleHandUp);
document.addEventListener("touchend", this.handleHandUp);
}
@action
handleHandMove = (e: TouchEvent) => {
for (let i = 0; i < e.changedTouches.length; i++) {
const pt = e.changedTouches.item(i);
if (pt?.identifier === this.thumbIdentifier) {
}
}
}
@action
handleHandUp = (e: TouchEvent) => {
this.onTouchEnd(e);
if (this.prevPoints.size < 3) {
this._palette = undefined;
document.removeEventListener("touchend", this.handleHandUp);
}
}
@action
onPointerDown = (e: React.PointerEvent) => {
if (InteractionUtils.IsType(e, InteractionUtils.PENTYPE) || (InkingControl.Instance.selectedTool === InkTool.Highlighter || InkingControl.Instance.selectedTool === InkTool.Pen)) {
this._points.push({ X: e.clientX, Y: e.clientY });
e.stopPropagation();
e.preventDefault();
document.removeEventListener("pointermove", this.onPointerMove);
document.removeEventListener("pointerup", this.onPointerUp);
document.addEventListener("pointermove", this.onPointerMove);
document.addEventListener("pointerup", this.onPointerUp);
}
}
@action
onPointerMove = (e: PointerEvent) => {
if (InteractionUtils.IsType(e, InteractionUtils.PENTYPE) || (InkingControl.Instance.selectedTool === InkTool.Highlighter || InkingControl.Instance.selectedTool === InkTool.Pen)) {
this._points.push({ X: e.clientX, Y: e.clientY });
e.stopPropagation();
e.preventDefault();
}
}
handleLineGesture = (): boolean => {
let actionPerformed = false;
const B = this.svgBounds;
const ep1 = this._points[0];
const ep2 = this._points[this._points.length - 1];
const target1 = document.elementFromPoint(ep1.X, ep1.Y);
const target2 = document.elementFromPoint(ep2.X, ep2.Y);
const callback = (doc: Doc) => {
if (!this._d1) {
this._d1 = doc;
}
else if (this._d1 !== doc && !LinkManager.Instance.doesLinkExist(this._d1, doc)) {
DocUtils.MakeLink({ doc: this._d1 }, { doc: doc });
actionPerformed = true;
}
}
const ge = new CustomEvent<GestureUtils.GestureEvent>("dashOnGesture",
{
bubbles: true,
detail: {
points: this._points,
gesture: GestureUtils.Gestures.Line,
bounds: B,
callbackFn: callback
}
});
target1?.dispatchEvent(ge);
target2?.dispatchEvent(ge);
return actionPerformed;
}
@action
onPointerUp = (e: PointerEvent) => {
if (this._points.length > 1) {
const B = this.svgBounds;
const points = this._points.map(p => ({ X: p.X - B.left, Y: p.Y - B.top }));
if (MobileInterface.Instance && MobileInterface.Instance.drawingInk) {
const { selectedColor, selectedWidth } = InkingControl.Instance;
DocServer.Mobile.dispatchGesturePoints({
points: this._points,
bounds: B,
color: selectedColor,
width: selectedWidth
});
}
const result = GestureUtils.GestureRecognizer.Recognize(new Array(points));
let actionPerformed = false;
if (result && result.Score > 0.7) {
switch (result.Name) {
case GestureUtils.Gestures.Box:
const target = document.elementFromPoint(this._points[0].X, this._points[0].Y);
target?.dispatchEvent(new CustomEvent<GestureUtils.GestureEvent>("dashOnGesture",
{
bubbles: true,
detail: {
points: this._points,
gesture: GestureUtils.Gestures.Box,
bounds: B
}
}));
actionPerformed = true;
break;
case GestureUtils.Gestures.Line:
actionPerformed = this.handleLineGesture();
break;
case GestureUtils.Gestures.Scribble:
console.log("scribble");
break;
}
if (actionPerformed) {
this._points = [];
}
}
if (!actionPerformed) {
const target = document.elementFromPoint(this._points[0].X, this._points[0].Y);
target?.dispatchEvent(
new CustomEvent<GestureUtils.GestureEvent>("dashOnGesture",
{
bubbles: true,
detail: {
points: this._points,
gesture: GestureUtils.Gestures.Stroke,
bounds: B
}
}
)
)
this._points = [];
}
}
document.removeEventListener("pointermove", this.onPointerMove);
document.removeEventListener("pointerup", this.onPointerUp);
}
@computed get svgBounds() {
const xs = this._points.map(p => p.X);
const ys = this._points.map(p => p.Y);
const right = Math.max(...xs);
const left = Math.min(...xs);
const bottom = Math.max(...ys);
const top = Math.min(...ys);
return { right: right, left: left, bottom: bottom, top: top, width: right - left, height: bottom - top };
}
@computed get currentStroke() {
if (this._points.length <= 1) {
return (null);
}
const B = this.svgBounds;
return (
<svg width={B.width} height={B.height} style={{ transform: `translate(${B.left}px, ${B.top}px)`, pointerEvents: "none", position: "absolute", zIndex: 30000 }}>
{InteractionUtils.CreatePolyline(this._points, B.left, B.top, this.Color, this.Width)}
</svg>
);
}
@action
enableMobileInkOverlay = (content: MobileInkOverlayContent) => {
this.showMobileInkOverlay = content.enableOverlay;
}
render() {
return (
<div className="gestureOverlay-cont" onPointerDown={this.onPointerDown} onTouchStart={this.onTouchStart}>
{this.showMobileInkOverlay ? <MobileInkOverlay /> : <></>}
{this.currentStroke}
{this.props.children}
{this._palette}
</div>);
}
}
Scripting.addGlobal("GestureOverlay", GestureOverlay);
Scripting.addGlobal(function setPen(width: any, color: any) { runInAction(() => { GestureOverlay.Instance.Color = color; GestureOverlay.Instance.Width = width; }); });
Scripting.addGlobal(function resetPen() { runInAction(() => { GestureOverlay.Instance.Color = "rgb(244, 67, 54)"; GestureOverlay.Instance.Width = 5; }); });
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