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import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { action, observable } from 'mobx';
import { observer } from "mobx-react";
import { Doc } from '../../../fields/Doc';
import { documentSchema } from '../../../fields/documentSchemas';
import { createSchema, makeInterface } from '../../../fields/Schema';
import { NumCast, Cast, StrCast } from '../../../fields/Types';
import { DragManager } from '../../util/DragManager';
import { ViewBoxAnnotatableComponent } from '../DocComponent';
import { FieldView, FieldViewProps } from './FieldView';
import "./ComparisonBox.scss";
import React = require("react");
import { ContentFittingDocumentView } from './ContentFittingDocumentView';
import { undoBatch } from '../../util/UndoManager';
import { setupMoveUpEvents, emptyFunction } from '../../../Utils';
import { SnappingManager } from '../../util/SnappingManager';
import { DocumentViewProps } from './DocumentView';
export const comparisonSchema = createSchema({});
type ComparisonDocument = makeInterface<[typeof comparisonSchema, typeof documentSchema]>;
const ComparisonDocument = makeInterface(comparisonSchema, documentSchema);
@observer
export class ComparisonBox extends ViewBoxAnnotatableComponent<FieldViewProps, ComparisonDocument>(ComparisonDocument) {
public static LayoutString(fieldKey: string) { return FieldView.LayoutString(ComparisonBox, fieldKey); }
protected _multiTouchDisposer?: import("../../util/InteractionUtils").InteractionUtils.MultiTouchEventDisposer | undefined;
private _disposers: (DragManager.DragDropDisposer | undefined)[] = [undefined, undefined];
@observable _animating = "";
protected createDropTarget = (ele: HTMLDivElement | null, fieldKey: string, disposerId: number) => {
this._disposers[disposerId]?.();
if (ele) {
// create disposers identified by disposerId to remove drag & drop listeners
this._disposers[disposerId] = DragManager.MakeDropTarget(ele, (e, dropEvent) => this.dropHandler(e, dropEvent, fieldKey), this.layoutDoc);
}
}
@undoBatch
private dropHandler = (event: Event, dropEvent: DragManager.DropEvent, fieldKey: string) => {
if (dropEvent.complete.docDragData) {
event.stopPropagation(); // prevent parent Doc from registering new position so that it snaps back into place
const droppedDocs = dropEvent.complete.docDragData?.droppedDocuments;
if (droppedDocs?.length) {
this.dataDoc[fieldKey] = droppedDocs[0];
}
}
}
private registerSliding = (e: React.PointerEvent<HTMLDivElement>, targetWidth: number) => {
setupMoveUpEvents(this, e, this.onPointerMove, emptyFunction, action(() => {
// on click, animate slider movement to the targetWidth
this._animating = "all 200ms";
this.layoutDoc._clipWidth = targetWidth * 100 / this.props.PanelWidth();
setTimeout(action(() => this._animating = ""), 200);
}), false);
}
@action
private onPointerMove = ({ movementX }: PointerEvent) => {
const width = movementX * this.props.ScreenToLocalTransform().Scale + NumCast(this.layoutDoc._clipWidth) / 100 * this.props.PanelWidth();
if (width && width > 5 && width < this.props.PanelWidth()) {
this.layoutDoc._clipWidth = width * 100 / this.props.PanelWidth();
}
return false;
}
@undoBatch
clearDoc = (e: React.MouseEvent, fieldKey: string) => {
e.stopPropagation; // prevent click event action (slider movement) in registerSliding
delete this.dataDoc[fieldKey];
}
render() {
const clipWidth = NumCast(this.layoutDoc._clipWidth) + "%";
const childProps: DocumentViewProps = { ...this.props, pointerEvents: "none", parentActive: this.props.active };
const clearButton = (which: string) => {
return <div className={`clear-button ${which}`}
onPointerDown={e => e.stopPropagation()} // prevent triggering slider movement in registerSliding
onClick={e => this.clearDoc(e, `compareBox-${which}`)}>
<FontAwesomeIcon className={`clear-button ${which}`} icon={"times"} size="sm" />
</div>;
};
const displayDoc = (which: string) => {
const whichDoc = Cast(this.dataDoc[`compareBox-${which}`], Doc, null);
return whichDoc ? <>
<ContentFittingDocumentView {...childProps} Document={whichDoc} />
{clearButton(which)}
</> : // placeholder image if doc is missing
<div className="placeholder">
<FontAwesomeIcon className="upload-icon" icon={"cloud-upload-alt"} size="lg" />
</div>;
};
const displayBox = (which: string, index: number, cover: number) => {
return <div className={`${which}Box-cont`} key={which} style={{ width: this.props.PanelWidth() }}
onPointerDown={e => this.registerSliding(e, cover)}
ref={ele => this.createDropTarget(ele, `compareBox-${which}`, index)} >
{displayDoc(which)}
</div>;
};
return (
<div className={`comparisonBox${this.active() || SnappingManager.GetIsDragging() ? "-interactive" : ""}` /* change className to easily disable/enable pointer events in CSS */}>
{displayBox("after", 1, this.props.PanelWidth() - 3)}
<div className="clip-div" style={{ width: clipWidth, transition: this._animating, background: StrCast(this.layoutDoc._backgroundColor, "gray") }}>
{displayBox("before", 0, 0)}
</div>
<div className="slide-bar" style={{ left: `calc(${clipWidth} - 0.5px)`, cursor: NumCast(this.layoutDoc._clipWidth) < 5 ? "e-resize" : NumCast(this.layoutDoc._clipWidth) / 100 > (this.props.PanelWidth() - 5) / this.props.PanelWidth() ? "w-resize" : undefined }}
onPointerDown={e => this.registerSliding(e, this.props.PanelWidth() / 2)} /* if clicked, return slide-bar to center */ >
<div className="slide-handle" />
</div>
</div >);
}
}
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