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import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { computed, makeObservable } from 'mobx';
import { observer } from 'mobx-react';
import * as React from 'react';
import { Utils, emptyFunction, returnFalse, returnZero } from '../../../Utils';
import { Doc, DocListCast } from '../../../fields/Doc';
import { Id } from '../../../fields/FieldSymbols';
import { DocCast, NumCast, ScriptCast, StrCast } from '../../../fields/Types';
import { DocumentType } from '../../documents/DocumentTypes';
import { DragManager } from '../../util/DragManager';
import { SelectionManager } from '../../util/SelectionManager';
import { StyleProp } from '../StyleProvider';
import { DocumentView } from '../nodes/DocumentView';
import { FocusViewOptions } from '../nodes/FieldView';
import './CollectionCarousel3DView.scss';
import { CollectionSubView } from './CollectionSubView';
const { CAROUSEL3D_CENTER_SCALE, CAROUSEL3D_SIDE_SCALE, CAROUSEL3D_TOP } = require('../global/globalCssVariables.module.scss');
@observer
export class CollectionCarousel3DView extends CollectionSubView() {
@computed get scrollSpeed() {
return this.layoutDoc._autoScrollSpeed ? NumCast(this.layoutDoc._autoScrollSpeed) : 1000; //default scroll speed
}
constructor(props: any) {
super(props);
makeObservable(this);
}
private _dropDisposer?: DragManager.DragDropDisposer;
componentWillUnmount() {
this._dropDisposer?.();
}
protected createDashEventsTarget = (ele: HTMLDivElement | null) => {
this._dropDisposer?.();
if (ele) {
this._dropDisposer = DragManager.MakeDropTarget(ele, this.onInternalDrop.bind(this), this.layoutDoc);
}
};
@computed get carouselItems() {
return this.childLayoutPairs.filter(pair => pair.layout.type !== DocumentType.LINK);
}
centerScale = Number(CAROUSEL3D_CENTER_SCALE);
panelWidth = () => this._props.PanelWidth() / 3;
panelHeight = () => this._props.PanelHeight() * Number(CAROUSEL3D_SIDE_SCALE);
onChildDoubleClick = () => ScriptCast(this.layoutDoc.onChildDoubleClick);
isContentActive = () => this._props.isSelected() || this._props.isContentActive() || this._props.isAnyChildContentActive();
isChildContentActive = () => (this.isContentActive() ? true : false);
childScreenToLocal = () =>
this._props // document's left is the panel shifted by the doc's index * panelWidth/#docs. But it scales by centerScale around its center, so it's left moves left by the distance of the left from the center (panelwidth/2) * the scale delta (centerScale-1)
.ScreenToLocalTransform() // the top behaves the same way ecept it's shifted by the 'top' amount specified for the panel in css and then by the scale factor.
.translate(-this.panelWidth() + ((this.centerScale - 1) * this.panelWidth()) / 2, -((Number(CAROUSEL3D_TOP) / 100) * this._props.PanelHeight()) + ((this.centerScale - 1) * this.panelHeight()) / 2)
.scale(1 / this.centerScale);
focus = (anchor: Doc, options: FocusViewOptions) => {
const docs = DocListCast(this.Document[this.fieldKey ?? Doc.LayoutFieldKey(this.Document)]);
if (anchor.type !== DocumentType.CONFIG && !docs.includes(anchor)) return;
options.didMove = true;
const target = DocCast(anchor.annotationOn) ?? anchor;
const index = docs.indexOf(target);
index !== -1 && (this.layoutDoc._carousel_index = index);
return undefined;
};
@computed get content() {
const currentIndex = NumCast(this.layoutDoc._carousel_index);
const displayDoc = (childPair: { layout: Doc; data: Doc }) => {
return (
<DocumentView
{...this._props}
Document={childPair.layout}
TemplateDataDocument={childPair.data}
//suppressSetHeight={true}
NativeWidth={returnZero}
NativeHeight={returnZero}
layout_fitWidth={undefined}
onDoubleClickScript={this.onChildDoubleClick}
renderDepth={this._props.renderDepth + 1}
LayoutTemplate={this._props.childLayoutTemplate}
LayoutTemplateString={this._props.childLayoutString}
focus={this.focus}
ScreenToLocalTransform={this.childScreenToLocal}
isContentActive={this.isChildContentActive}
isDocumentActive={this._props.childDocumentsActive?.() || this.Document._childDocumentsActive ? this._props.isDocumentActive : this.isContentActive}
PanelWidth={this.panelWidth}
PanelHeight={this.panelHeight}
/>
);
};
return this.carouselItems.map((childPair, index) => {
return (
<div key={childPair.layout[Id]} className={`collectionCarousel3DView-item${index === currentIndex ? '-active' : ''} ${index}`} style={{ width: this.panelWidth() }}>
{displayDoc(childPair)}
</div>
);
});
}
changeSlide = (direction: number) => {
SelectionManager.DeselectAll();
this.layoutDoc._carousel_index = (NumCast(this.layoutDoc._carousel_index) + direction + this.carouselItems.length) % this.carouselItems.length;
};
onArrowClick = (direction: number) => {
this.changeSlide(direction);
!this.layoutDoc.autoScrollOn && (this.layoutDoc.showScrollButton = direction === 1 ? 'fwd' : 'back'); // while autoscroll is on, keep the other autoscroll button hidden
!this.layoutDoc.autoScrollOn && this.fadeScrollButton(); // keep pause button visible while autoscroll is on
};
interval?: number;
startAutoScroll = (direction: number) => {
this.interval = window.setInterval(() => {
this.changeSlide(direction);
}, this.scrollSpeed);
};
stopAutoScroll = () => {
window.clearInterval(this.interval);
this.interval = undefined;
this.fadeScrollButton();
};
toggleAutoScroll = (direction: number) => {
this.layoutDoc.autoScrollOn = this.layoutDoc.autoScrollOn ? false : true;
this.layoutDoc.autoScrollOn ? this.startAutoScroll(direction) : this.stopAutoScroll();
};
fadeScrollButton = () => {
window.setTimeout(() => {
!this.layoutDoc.autoScrollOn && (this.layoutDoc.showScrollButton = 'none'); //fade away after 1.5s if it's not clicked.
}, 1500);
};
@computed get buttons() {
return (
<div className="arrow-buttons">
<div title="click to go back" key="back" className="carousel3DView-back" onClick={e => this.onArrowClick(-1)} />
<div title="click to advance" key="fwd" className="carousel3DView-fwd" onClick={e => this.onArrowClick(1)} />
{/* {this.autoScrollButton} */}
</div>
);
}
@computed get autoScrollButton() {
const whichButton = this.layoutDoc.showScrollButton;
return (
<>
<div className={`carousel3DView-back-scroll${whichButton === 'back' ? '' : '-hidden'}`} style={{ background: `${StrCast(this.Document.backgroundColor)}` }} onClick={() => this.toggleAutoScroll(-1)}>
{this.layoutDoc.autoScrollOn ? <FontAwesomeIcon icon={'pause'} size={'1x'} /> : <FontAwesomeIcon icon={'angle-double-left'} size={'1x'} />}
</div>
<div className={`carousel3DView-fwd-scroll${whichButton === 'fwd' ? '' : '-hidden'}`} style={{ background: `${StrCast(this.Document.backgroundColor)}` }} onClick={() => this.toggleAutoScroll(1)}>
{this.layoutDoc.autoScrollOn ? <FontAwesomeIcon icon={'pause'} size={'1x'} /> : <FontAwesomeIcon icon={'angle-double-right'} size={'1x'} />}
</div>
</>
);
}
@computed get dots() {
return this.carouselItems.map((_child, index) => <div key={Utils.GenerateGuid()} className={`dot${index === NumCast(this.layoutDoc._carousel_index) ? '-active' : ''}`} onClick={() => (this.layoutDoc._carousel_index = index)} />);
}
@computed get translateX() {
const index = NumCast(this.layoutDoc._carousel_index);
return this.panelWidth() * (1 - index);
}
render() {
return (
<div
className="collectionCarousel3DView-outer"
ref={this.createDashEventsTarget}
style={{
background: this._props.styleProvider?.(this.layoutDoc, this._props, StyleProp.BackgroundColor),
color: this._props.styleProvider?.(this.layoutDoc, this._props, StyleProp.Color),
}}>
<div className="carousel-wrapper" style={{ transform: `translateX(${this.translateX}px)` }}>
{this.content}
</div>
{this.buttons}
<div className="dot-bar">{this.dots}</div>
</div>
);
}
}
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