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move timeline utils functions to new file

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This commit is contained in:
Ajay Bura 2025-10-22 16:21:16 +05:30
parent d73428ee3d
commit 174b315278
3 changed files with 85 additions and 73 deletions
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91
src/app/features/room/RoomTimeline.tsx
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@ -128,6 +128,16 @@ import { useTheme } from '../../hooks/useTheme';
import { useRoomCreatorsTag } from '../../hooks/useRoomCreatorsTag';
import { usePowerLevelTags } from '../../hooks/usePowerLevelTags';
import { ThreadSelector, ThreadSelectorContainer } from './message/thread-selector';
import {
getEventIdAbsoluteIndex,
getFirstLinkedTimeline,
getLinkedTimelines,
getTimelineAndBaseIndex,
getTimelineEvent,
getTimelineRelativeIndex,
getTimelinesEventsCount,
timelineToEventsCount,
} from './utils';
const TimelineFloat = as<'div', css.TimelineFloatVariants>(
({ position, className, ...props }, ref) => (
@ -152,79 +162,6 @@ const TimelineDivider = as<'div', { variant?: ContainerColor | 'Inherit' }>(
)
);
export const getLiveTimeline = (room: Room): EventTimeline =>
room.getUnfilteredTimelineSet().getLiveTimeline();
export const getEventTimeline = (room: Room, eventId: string): EventTimeline | undefined => {
const timelineSet = room.getUnfilteredTimelineSet();
return timelineSet.getTimelineForEvent(eventId) ?? undefined;
};
export const getFirstLinkedTimeline = (
timeline: EventTimeline,
direction: Direction
): EventTimeline => {
const linkedTm = timeline.getNeighbouringTimeline(direction);
if (!linkedTm) return timeline;
return getFirstLinkedTimeline(linkedTm, direction);
};
export const getLinkedTimelines = (timeline: EventTimeline): EventTimeline[] => {
const firstTimeline = getFirstLinkedTimeline(timeline, Direction.Backward);
const timelines: EventTimeline[] = [];
for (
let nextTimeline: EventTimeline | null = firstTimeline;
nextTimeline;
nextTimeline = nextTimeline.getNeighbouringTimeline(Direction.Forward)
) {
timelines.push(nextTimeline);
}
return timelines;
};
export const timelineToEventsCount = (t: EventTimeline) => t.getEvents().length;
export const getTimelinesEventsCount = (timelines: EventTimeline[]): number => {
const timelineEventCountReducer = (count: number, tm: EventTimeline) =>
count + timelineToEventsCount(tm);
return timelines.reduce(timelineEventCountReducer, 0);
};
export const getTimelineAndBaseIndex = (
timelines: EventTimeline[],
index: number
): [EventTimeline | undefined, number] => {
let uptoTimelineLen = 0;
const timeline = timelines.find((t) => {
uptoTimelineLen += t.getEvents().length;
if (index < uptoTimelineLen) return true;
return false;
});
if (!timeline) return [undefined, 0];
return [timeline, uptoTimelineLen - timeline.getEvents().length];
};
export const getTimelineRelativeIndex = (absoluteIndex: number, timelineBaseIndex: number) =>
absoluteIndex - timelineBaseIndex;
export const getTimelineEvent = (timeline: EventTimeline, index: number): MatrixEvent | undefined =>
timeline.getEvents()[index];
export const getEventIdAbsoluteIndex = (
timelines: EventTimeline[],
eventTimeline: EventTimeline,
eventId: string
): number | undefined => {
const timelineIndex = timelines.findIndex((t) => t === eventTimeline);
if (timelineIndex === -1) return undefined;
const eventIndex = eventTimeline.getEvents().findIndex((evt) => evt.getId() === eventId);
if (eventIndex === -1) return undefined;
const baseIndex = timelines
.slice(0, timelineIndex)
.reduce((accValue, timeline) => timeline.getEvents().length + accValue, 0);
return baseIndex + eventIndex;
};
type RoomTimelineProps = {
room: Room;
eventId?: string;
@ -234,6 +171,14 @@ type RoomTimelineProps = {
const PAGINATION_LIMIT = 80;
export const getLiveTimeline = (room: Room): EventTimeline =>
room.getUnfilteredTimelineSet().getLiveTimeline();
export const getEventTimeline = (room: Room, eventId: string): EventTimeline | undefined => {
const timelineSet = room.getUnfilteredTimelineSet();
return timelineSet.getTimelineForEvent(eventId) ?? undefined;
};
type Timeline = {
linkedTimelines: EventTimeline[];
range: ItemRange;

1
src/app/features/room/utils/index.ts Normal file
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@ -0,0 +1 @@
export * from './timeline';

66
src/app/features/room/utils/timeline.ts Normal file
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@ -0,0 +1,66 @@
import { Room, EventTimeline, Direction, MatrixEvent } from 'matrix-js-sdk';
export const getFirstLinkedTimeline = (
timeline: EventTimeline,
direction: Direction
): EventTimeline => {
const linkedTm = timeline.getNeighbouringTimeline(direction);
if (!linkedTm) return timeline;
return getFirstLinkedTimeline(linkedTm, direction);
};
export const getLinkedTimelines = (timeline: EventTimeline): EventTimeline[] => {
const firstTimeline = getFirstLinkedTimeline(timeline, Direction.Backward);
const timelines: EventTimeline[] = [];
for (
let nextTimeline: EventTimeline | null = firstTimeline;
nextTimeline;
nextTimeline = nextTimeline.getNeighbouringTimeline(Direction.Forward)
) {
timelines.push(nextTimeline);
}
return timelines;
};
export const timelineToEventsCount = (t: EventTimeline) => t.getEvents().length;
export const getTimelinesEventsCount = (timelines: EventTimeline[]): number => {
const timelineEventCountReducer = (count: number, tm: EventTimeline) =>
count + timelineToEventsCount(tm);
return timelines.reduce(timelineEventCountReducer, 0);
};
export const getTimelineAndBaseIndex = (
timelines: EventTimeline[],
index: number
): [EventTimeline | undefined, number] => {
let uptoTimelineLen = 0;
const timeline = timelines.find((t) => {
uptoTimelineLen += t.getEvents().length;
if (index < uptoTimelineLen) return true;
return false;
});
if (!timeline) return [undefined, 0];
return [timeline, uptoTimelineLen - timeline.getEvents().length];
};
export const getTimelineRelativeIndex = (absoluteIndex: number, timelineBaseIndex: number) =>
absoluteIndex - timelineBaseIndex;
export const getTimelineEvent = (timeline: EventTimeline, index: number): MatrixEvent | undefined =>
timeline.getEvents()[index];
export const getEventIdAbsoluteIndex = (
timelines: EventTimeline[],
eventTimeline: EventTimeline,
eventId: string
): number | undefined => {
const timelineIndex = timelines.findIndex((t) => t === eventTimeline);
if (timelineIndex === -1) return undefined;
const eventIndex = eventTimeline.getEvents().findIndex((evt) => evt.getId() === eventId);
if (eventIndex === -1) return undefined;
const baseIndex = timelines
.slice(0, timelineIndex)
.reduce((accValue, timeline) => timeline.getEvents().length + accValue, 0);
return baseIndex + eventIndex;
};