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155 lines
4.9 KiB
155 lines
4.9 KiB
import {
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TIMELINE_UPDATE,
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TIMELINE_DELETE,
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TIMELINE_CLEAR,
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TIMELINE_EXPAND_SUCCESS,
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TIMELINE_EXPAND_REQUEST,
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TIMELINE_EXPAND_FAIL,
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TIMELINE_SCROLL_TOP,
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TIMELINE_DISCONNECT,
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} from '../actions/timelines';
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import {
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ACCOUNT_BLOCK_SUCCESS,
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ACCOUNT_MUTE_SUCCESS,
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ACCOUNT_UNFOLLOW_SUCCESS,
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} from '../actions/accounts';
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import { Map as ImmutableMap, List as ImmutableList, fromJS } from 'immutable';
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import compareId from '../compare_id';
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const initialState = ImmutableMap();
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const initialTimeline = ImmutableMap({
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unread: 0,
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top: true,
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isLoading: false,
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hasMore: true,
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items: ImmutableList(),
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});
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const expandNormalizedTimeline = (state, timeline, statuses, next, isPartial) => {
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return state.update(timeline, initialTimeline, map => map.withMutations(mMap => {
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mMap.set('isLoading', false);
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if (!next) mMap.set('hasMore', false);
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if (!statuses.isEmpty()) {
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mMap.update('items', ImmutableList(), oldIds => {
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const newIds = statuses.map(status => status.get('id'));
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if (timeline.indexOf(':pinned') !== -1) {
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return newIds;
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}
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const lastIndex = oldIds.findLastIndex(id => id !== null && compareId(id, newIds.last()) >= 0) + 1;
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const firstIndex = oldIds.take(lastIndex).findLastIndex(id => id !== null && compareId(id, newIds.first()) > 0);
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if (firstIndex < 0) {
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return (isPartial ? newIds.unshift(null) : newIds).concat(oldIds.skip(lastIndex));
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}
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return oldIds.take(firstIndex + 1).concat(
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isPartial && oldIds.get(firstIndex) !== null ? newIds.unshift(null) : newIds,
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oldIds.skip(lastIndex)
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);
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});
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}
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}));
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};
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const updateTimeline = (state, timeline, status) => {
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const top = state.getIn([timeline, 'top']);
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const ids = state.getIn([timeline, 'items'], ImmutableList());
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const includesId = ids.includes(status.get('id'));
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const unread = state.getIn([timeline, 'unread'], 0);
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if (includesId) {
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return state;
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}
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let newIds = ids;
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return state.update(timeline, initialTimeline, map => map.withMutations(mMap => {
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if (!top) mMap.set('unread', unread + 1);
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if (top && ids.size > 40) newIds = newIds.take(20);
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mMap.set('items', newIds.unshift(status.get('id')));
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}));
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};
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const deleteStatus = (state, id, accountId, references) => {
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state.keySeq().forEach(timeline => {
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state = state.updateIn([timeline, 'items'], list => list.filterNot(item => item === id));
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});
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// Remove reblogs of deleted status
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references.forEach(ref => {
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state = deleteStatus(state, ref[0], ref[1], []);
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});
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return state;
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};
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const clearTimeline = (state, timeline) => {
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return state.updateIn([timeline, 'items'], list => list.clear());
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};
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const filterTimelines = (state, relationship, statuses) => {
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let references;
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statuses.forEach(status => {
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if (status.get('account') !== relationship.id) {
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return;
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}
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references = statuses.filter(item => item.get('reblog') === status.get('id')).map(item => [item.get('id'), item.get('account')]);
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state = deleteStatus(state, status.get('id'), status.get('account'), references);
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});
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return state;
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};
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const filterTimeline = (timeline, state, relationship, statuses) =>
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state.updateIn([timeline, 'items'], ImmutableList(), list =>
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list.filterNot(statusId =>
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statuses.getIn([statusId, 'account']) === relationship.id
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));
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const updateTop = (state, timeline, top) => {
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return state.update(timeline, initialTimeline, map => map.withMutations(mMap => {
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if (top) mMap.set('unread', 0);
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mMap.set('top', top);
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}));
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};
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export default function timelines(state = initialState, action) {
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switch(action.type) {
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case TIMELINE_EXPAND_REQUEST:
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return state.update(action.timeline, initialTimeline, map => map.set('isLoading', true));
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case TIMELINE_EXPAND_FAIL:
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return state.update(action.timeline, initialTimeline, map => map.set('isLoading', false));
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case TIMELINE_EXPAND_SUCCESS:
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return expandNormalizedTimeline(state, action.timeline, fromJS(action.statuses), action.next, action.partial);
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case TIMELINE_UPDATE:
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return updateTimeline(state, action.timeline, fromJS(action.status));
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case TIMELINE_DELETE:
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return deleteStatus(state, action.id, action.accountId, action.references, action.reblogOf);
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case TIMELINE_CLEAR:
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return clearTimeline(state, action.timeline);
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case ACCOUNT_BLOCK_SUCCESS:
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case ACCOUNT_MUTE_SUCCESS:
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return filterTimelines(state, action.relationship, action.statuses);
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case ACCOUNT_UNFOLLOW_SUCCESS:
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return filterTimeline('home', state, action.relationship, action.statuses);
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case TIMELINE_SCROLL_TOP:
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return updateTop(state, action.timeline, action.top);
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case TIMELINE_DISCONNECT:
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return state.update(
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action.timeline,
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initialTimeline,
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map => map.update(
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'items',
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items => items.first() ? items.unshift(null) : items
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)
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);
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default:
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return state;
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}
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};
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