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|
import React from 'react';
import { Spinner } from 'reactstrap';
import { useTranslation } from 'react-i18next';
import { fromEvent } from 'rxjs';
import Svg from 'react-inlinesvg';
import arrowsAngleContractIcon from 'bootstrap-icons/icons/arrows-angle-contract.svg';
import arrowsAngleExpandIcon from 'bootstrap-icons/icons/arrows-angle-expand.svg';
import { getAlertHost } from '../common/alert-service';
import Timeline, {
TimelinePostInfoEx,
TimelineDeleteCallback,
} from './Timeline';
import AppBar from '../common/AppBar';
import TimelinePostEdit, { TimelinePostSendCallback } from './TimelinePostEdit';
import { useEventEmiiter } from '../common';
export interface TimelineCardComponentProps<TTimeline, TManageItems> {
timeline: TTimeline;
onManage?: (item: TManageItems | 'property') => void;
onMember: () => void;
className?: string;
onHeight?: (height: number) => void;
}
export interface TimelinePageTemplateUIProps<
TTimeline extends { uniqueId: string },
TManageItems
> {
avatarKey?: string | number;
timeline?: TTimeline;
posts?: TimelinePostInfoEx[] | 'forbid';
CardComponent: React.ComponentType<
TimelineCardComponentProps<TTimeline, TManageItems>
>;
onMember: () => void;
onManage?: (item: TManageItems | 'property') => void;
onPost?: TimelinePostSendCallback;
onDelete: TimelineDeleteCallback;
error?: string;
}
export default function TimelinePageTemplateUI<
TTimeline extends { uniqueId: string },
TEditItems
>(
props: TimelinePageTemplateUIProps<TTimeline, TEditItems>
): React.ReactElement | null {
const { timeline } = props;
const { t } = useTranslation();
const bottomSpaceRef = React.useRef<HTMLDivElement | null>(null);
const onPostEditHeightChange = React.useCallback((height: number): void => {
const { current: bottomSpaceDiv } = bottomSpaceRef;
if (bottomSpaceDiv != null) {
bottomSpaceDiv.style.height = `${height}px`;
}
if (height === 0) {
const alertHost = getAlertHost();
if (alertHost != null) {
alertHost.style.removeProperty('margin-bottom');
}
} else {
const alertHost = getAlertHost();
if (alertHost != null) {
alertHost.style.marginBottom = `${height}px`;
}
}
}, []);
const timelineRef = React.useRef<HTMLDivElement | null>(null);
const [getResizeEvent, triggerResizeEvent] = useEventEmiiter();
React.useEffect(() => {
const { current: timelineElement } = timelineRef;
if (timelineElement != null) {
let loadingScrollToBottom = true;
let pinBottom = false;
const isAtBottom = (): boolean =>
window.innerHeight + window.scrollY + 10 >= document.body.scrollHeight;
const disableLoadingScrollToBottom = (): void => {
loadingScrollToBottom = false;
if (isAtBottom()) pinBottom = true;
};
const checkAndScrollToBottom = (): void => {
if (loadingScrollToBottom || pinBottom) {
window.scrollTo(0, document.body.scrollHeight);
}
};
const subscriptions = [
fromEvent(timelineElement, 'wheel').subscribe(
disableLoadingScrollToBottom
),
fromEvent(timelineElement, 'pointerdown').subscribe(
disableLoadingScrollToBottom
),
fromEvent(timelineElement, 'keydown').subscribe(
disableLoadingScrollToBottom
),
fromEvent(window, 'scroll').subscribe(() => {
if (loadingScrollToBottom) return;
if (isAtBottom()) {
pinBottom = true;
} else {
pinBottom = false;
}
}),
fromEvent(window, 'resize').subscribe(checkAndScrollToBottom),
getResizeEvent().subscribe(checkAndScrollToBottom),
];
return () => {
subscriptions.forEach((s) => s.unsubscribe());
};
}
}, [getResizeEvent, triggerResizeEvent, timeline, props.posts]);
const [cardHeight, setCardHeight] = React.useState<number>(0);
const genCardCollapseLocalStorageKey = (uniqueId: string): string =>
`timeline.${uniqueId}.cardCollapse`;
const cardCollapseLocalStorageKey =
timeline != null ? genCardCollapseLocalStorageKey(timeline.uniqueId) : null;
const [infoCardCollapse, setInfoCardCollapse] = React.useState<boolean>(true);
React.useEffect(() => {
if (cardCollapseLocalStorageKey != null) {
const savedCollapse =
window.localStorage.getItem(cardCollapseLocalStorageKey) === 'true';
setInfoCardCollapse(savedCollapse);
}
}, [cardCollapseLocalStorageKey]);
let body: React.ReactElement;
if (props.error != null) {
body = <p className="text-danger">{t(props.error)}</p>;
} else {
if (timeline != null) {
let timelineBody: React.ReactElement;
if (props.posts != null) {
if (props.posts === 'forbid') {
timelineBody = (
<p className="text-danger">{t('timeline.messageCantSee')}</p>
);
} else {
timelineBody = (
<Timeline
containerRef={timelineRef}
posts={props.posts}
onDelete={props.onDelete}
onResize={triggerResizeEvent}
/>
);
if (props.onPost != null) {
timelineBody = (
<>
{timelineBody}
<div ref={bottomSpaceRef} className="flex-fix-length" />
<TimelinePostEdit
onPost={props.onPost}
onHeightChange={onPostEditHeightChange}
timelineUniqueId={timeline.uniqueId}
/>
</>
);
}
}
} else {
timelineBody = (
<div className="full-viewport-center-child">
<Spinner color="primary" type="grow" />
</div>
);
}
const { CardComponent } = props;
body = (
<>
<div
className="fixed-top mt-appbar info-card-container"
data-collapse={infoCardCollapse ? 'true' : 'false'}
>
<Svg
src={
infoCardCollapse
? arrowsAngleExpandIcon
: arrowsAngleContractIcon
}
onClick={() => {
const newState = !infoCardCollapse;
setInfoCardCollapse(newState);
window.localStorage.setItem(
genCardCollapseLocalStorageKey(timeline.uniqueId),
newState.toString()
);
}}
className="float-right m-1 info-card-collapse-button text-primary icon-button"
/>
<CardComponent
timeline={timeline}
onManage={props.onManage}
onMember={props.onMember}
onHeight={setCardHeight}
className="info-card-content"
/>
</div>
{timelineBody}
</>
);
} else {
body = (
<div className="full-viewport-center-child">
<Spinner color="primary" type="grow" />
</div>
);
}
}
return (
<>
<AppBar />
<div>
<div
style={{ height: 56 + cardHeight }}
className="timeline-page-top-space flex-fix-length"
/>
{body}
</div>
</>
);
}
|
