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import { action, computed, observable } from "mobx";
import { observer } from "mobx-react";
import { Document } from "../../../../fields/Document";
import { FieldWaiting } from "../../../../fields/Field";
import { InkField, StrokeData } from "../../../../fields/InkField";
import { KeyStore } from "../../../../fields/KeyStore";
import { Documents } from "../../../documents/Documents";
import { SelectionManager } from "../../../util/SelectionManager";
import { Transform } from "../../../util/Transform";
import { InkingCanvas } from "../../InkingCanvas";
import { CollectionFreeFormView } from "./CollectionFreeFormView";
import "./MarqueeView.scss";
import { PreviewCursor } from "./PreviewCursor";
import React = require("react");
interface MarqueeViewProps {
getContainerTransform: () => Transform;
getTransform: () => Transform;
container: CollectionFreeFormView;
addDocument: (doc: Document, allowDuplicates: false) => boolean;
activeDocuments: () => Document[];
selectDocuments: (docs: Document[]) => void;
removeDocument: (doc: Document) => boolean;
addLiveTextDocument: (doc: Document) => void;
}
@observer
export class MarqueeView extends React.Component<MarqueeViewProps>
{
@observable _lastX: number = 0;
@observable _lastY: number = 0;
@observable _downX: number = 0;
@observable _downY: number = 0;
@observable _used: boolean = false;
@observable _visible: boolean = false;
static DRAG_THRESHOLD = 4;
@action
cleanupInteractions = (all: boolean = false) => {
if (all) {
document.removeEventListener("pointermove", this.onPointerMove, true)
document.removeEventListener("pointerup", this.onPointerUp, true);
} else {
this._used = true;
}
document.removeEventListener("keydown", this.marqueeCommand, true);
this._visible = false;
}
@action
onPointerDown = (e: React.PointerEvent): void => {
if (e.buttons == 1 && !e.altKey && !e.metaKey && this.props.container.props.active()) {
this._downX = this._lastX = e.pageX;
this._downY = this._lastY = e.pageY;
this._used = false;
document.addEventListener("pointermove", this.onPointerMove, true)
document.addEventListener("pointerup", this.onPointerUp, true);
document.addEventListener("keydown", this.marqueeCommand, true);
}
}
@action
onPointerMove = (e: PointerEvent): void => {
this._lastX = e.pageX;
this._lastY = e.pageY;
if (!e.cancelBubble) {
if (!this._used && e.buttons == 1 && !e.altKey && !e.metaKey &&
(Math.abs(this._lastX - this._downX) > MarqueeView.DRAG_THRESHOLD || Math.abs(this._lastY - this._downY) > MarqueeView.DRAG_THRESHOLD)) {
this._visible = true;
}
e.stopPropagation();
e.preventDefault();
}
}
@action
onPointerUp = (e: PointerEvent): void => {
this.cleanupInteractions(true);
this._visible = false;
if (!e.shiftKey) {
SelectionManager.DeselectAll();
}
this.props.selectDocuments(this.marqueeSelect());
}
intersectRect(r1: { left: number, top: number, width: number, height: number },
r2: { left: number, top: number, width: number, height: number }) {
return !(r2.left > r1.left + r1.width || r2.left + r2.width < r1.left || r2.top > r1.top + r1.height || r2.top + r2.height < r1.top);
}
@computed
get Bounds() {
let left = this._downX < this._lastX ? this._downX : this._lastX;
let top = this._downY < this._lastY ? this._downY : this._lastY;
let topLeft = this.props.getTransform().transformPoint(left, top);
let size = this.props.getTransform().transformDirection(this._lastX - this._downX, this._lastY - this._downY);
return { left: topLeft[0], top: topLeft[1], width: Math.abs(size[0]), height: Math.abs(size[1]) }
}
@action
marqueeCommand = (e: KeyboardEvent) => {
if (e.key == "Backspace" || e.key == "Delete") {
this.marqueeSelect().map(d => this.props.removeDocument(d));
let ink = this.props.container.props.Document.GetT(KeyStore.Ink, InkField);
if (ink && ink != FieldWaiting && ink.Data) {
this.marqueeInkDelete(ink.Data);
}
this.cleanupInteractions();
}
if (e.key == "c") {
let bounds = this.Bounds;
let selected = this.marqueeSelect().map(d => {
this.props.removeDocument(d);
d.SetNumber(KeyStore.X, d.GetNumber(KeyStore.X, 0) - bounds.left - bounds.width / 2);
d.SetNumber(KeyStore.Y, d.GetNumber(KeyStore.Y, 0) - bounds.top - bounds.height / 2);
d.SetNumber(KeyStore.Page, -1);
d.SetText(KeyStore.Title, "" + d.GetNumber(KeyStore.Width, 0) + " " + d.GetNumber(KeyStore.Height, 0));
return d;
});
let ink = this.props.container.props.Document.GetT(KeyStore.Ink, InkField);
if (ink && ink != FieldWaiting && ink.Data) {
//setTimeout(() => {
let newCollection = Documents.FreeformDocument(selected, {
x: bounds.left,
y: bounds.top,
panx: 0,
pany: 0,
width: bounds.width,
height: bounds.height,
backgroundColor: "Transparent",
ink: this.marqueeInkSelect(ink.Data),
title: "a nested collection"
});
this.props.addDocument(newCollection, false);
this.marqueeInkDelete(ink.Data);
}
// }, 100);
this.cleanupInteractions();
}
}
@action
marqueeInkSelect(ink: Map<any, any>) {
let idata = new Map();
let centerShiftX = 0 - (this.Bounds.left + this.Bounds.width / 2); // moves each point by the offset that shifts the selection's center to the origin.
let centerShiftY = 0 - (this.Bounds.top + this.Bounds.height / 2);
ink.forEach((value: StrokeData, key: string, map: any) => {
if (InkingCanvas.IntersectStrokeRect(value, this.Bounds)) {
idata.set(key,
{
pathData: value.pathData.map(val => { return { x: val.x + centerShiftX, y: val.y + centerShiftY } }),
color: value.color,
width: value.width,
tool: value.tool,
page: -1
});
}
});
return idata;
}
@action
marqueeInkDelete(ink: Map<any, any>, ) {
// bcz: this appears to work but when you restart all the deleted strokes come back -- InkField isn't observing its changes so they aren't written to the DB.
// ink.forEach((value: StrokeData, key: string, map: any) =>
// InkingCanvas.IntersectStrokeRect(value, this.Bounds) && ink.delete(key));
let idata = new Map();
ink.forEach((value: StrokeData, key: string, map: any) =>
!InkingCanvas.IntersectStrokeRect(value, this.Bounds) && idata.set(key, value));
this.props.container.props.Document.SetDataOnPrototype(KeyStore.Ink, idata, InkField);
}
marqueeSelect() {
let selRect = this.Bounds;
let selection: Document[] = [];
this.props.activeDocuments().map(doc => {
var x = doc.GetNumber(KeyStore.X, 0);
var y = doc.GetNumber(KeyStore.Y, 0);
var w = doc.GetNumber(KeyStore.Width, 0);
var h = doc.GetNumber(KeyStore.Height, 0);
if (this.intersectRect({ left: x, top: y, width: w, height: h }, selRect))
selection.push(doc)
})
return selection;
}
render() {
let p = this.props.getContainerTransform().transformPoint(this._downX < this._lastX ? this._downX : this._lastX, this._downY < this._lastY ? this._downY : this._lastY);
let v = this.props.getContainerTransform().transformDirection(this._lastX - this._downX, this._lastY - this._downY);
return <div className="marqueeView" onPointerDown={this.onPointerDown}>
<PreviewCursor container={this.props.container} addLiveTextDocument={this.props.addLiveTextDocument}
getContainerTransform={this.props.getContainerTransform} getTransform={this.props.getTransform} >
{this.props.children}
{!this._visible ? (null) :
<div className="marquee" style={{ transform: `translate(${p[0]}px, ${p[1]}px)`, width: `${Math.abs(v[0])}`, height: `${Math.abs(v[1])}` }} />}
</PreviewCursor>
</div>;
}
}
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