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import { action, observable, trace } from 'mobx';
import { observer } from 'mobx-react';
import "normalize.css";
import * as React from 'react';
import { emptyFunction, returnTrue, returnZero } from '../../Utils';
import '../northstar/model/ModelExtensions';
import '../northstar/utils/Extensions';
import { DragManager } from '../util/DragManager';
import { Transform } from '../util/Transform';
import "./MainOverlayTextBox.scss";
import { FormattedTextBox } from './nodes/FormattedTextBox';
import { Doc } from '../../new_fields/Doc';
import { NumCast } from '../../new_fields/Types';
interface MainOverlayTextBoxProps {
}
@observer
export class MainOverlayTextBox extends React.Component<MainOverlayTextBoxProps> {
public static Instance: MainOverlayTextBox;
@observable public TextDoc?: Doc = undefined;
public TextScroll: number = 0;
@observable _textRect: any;
@observable _textXf: () => Transform = () => Transform.Identity();
private _textFieldKey: string = "data";
private _textColor: string | null = null;
private _textTargetDiv: HTMLDivElement | undefined;
private _textProxyDiv: React.RefObject<HTMLDivElement>;
constructor(props: MainOverlayTextBoxProps) {
super(props);
this._textProxyDiv = React.createRef();
MainOverlayTextBox.Instance = this;
}
@action
SetTextDoc(textDoc?: Doc, textFieldKey?: string, div?: HTMLDivElement, tx?: () => Transform) {
if (this._textTargetDiv) {
this._textTargetDiv.style.color = this._textColor;
}
this.TextDoc = textDoc;
this._textFieldKey = textFieldKey!;
this._textXf = tx ? tx : () => Transform.Identity();
this._textTargetDiv = div;
if (div) {
this._textColor = div.style.color;
div.style.color = "transparent";
this._textRect = div.getBoundingClientRect();
this.TextScroll = div.scrollTop;
}
}
@action
textScroll = (e: React.UIEvent) => {
if (this._textProxyDiv.current && this._textTargetDiv) {
this.TextScroll = (e as any)._targetInst.stateNode.scrollTop;// this._textProxyDiv.current.children[0].scrollTop;
this._textTargetDiv.scrollTop = this.TextScroll;
}
}
textBoxDown = (e: React.PointerEvent) => {
if (e.button !== 0 || e.metaKey || e.altKey) {
document.addEventListener("pointermove", this.textBoxMove);
document.addEventListener('pointerup', this.textBoxUp);
}
}
textBoxMove = (e: PointerEvent) => {
if (e.movementX > 1 || e.movementY > 1) {
document.removeEventListener("pointermove", this.textBoxMove);
document.removeEventListener('pointerup', this.textBoxUp);
let dragData = new DragManager.DocumentDragData([this.TextDoc!]);
const [left, top] = this._textXf().inverse().transformPoint(0, 0);
dragData.xOffset = e.clientX - left;
dragData.yOffset = e.clientY - top;
DragManager.StartDocumentDrag([this._textTargetDiv!], dragData, e.clientX, e.clientY, {
handlers: {
dragComplete: action(emptyFunction),
},
hideSource: false
});
}
}
textBoxUp = (e: PointerEvent) => {
document.removeEventListener("pointermove", this.textBoxMove);
document.removeEventListener('pointerup', this.textBoxUp);
}
render() {
if (this.TextDoc) {
let toScreenXf = this._textXf().inverse();
let pt = toScreenXf.transformPoint(0, 0);
let s = 1 / this._textXf().Scale;
return <div className="mainOverlayTextBox-textInput" style={{ transform: `translate(${pt[0]}px, ${pt[1]}px) scale(${s},${s})`, width: "auto", height: "auto" }} >
<div className="mainOverlayTextBox-textInput" onPointerDown={this.textBoxDown} ref={this._textProxyDiv} onScroll={this.textScroll}
style={{ width: `${NumCast(this.TextDoc.width)}px`, height: `${NumCast(this.TextDoc.height)}px` }}>
<FormattedTextBox fieldKey={this._textFieldKey} isOverlay={true} Document={this.TextDoc} isSelected={returnTrue} select={emptyFunction} isTopMost={true}
selectOnLoad={true} ContainingCollectionView={undefined} whenActiveChanged={emptyFunction} active={returnTrue}
ScreenToLocalTransform={this._textXf} PanelWidth={returnZero} PanelHeight={returnZero} focus={emptyFunction} />
</div>
</ div>;
}
else return (null);
}
}
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