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237 lines
7.2 KiB
237 lines
7.2 KiB
import {
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TIMELINE_REFRESH_REQUEST,
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TIMELINE_REFRESH_SUCCESS,
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TIMELINE_UPDATE,
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TIMELINE_DELETE,
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TIMELINE_EXPAND_SUCCESS,
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TIMELINE_SCROLL_TOP
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} from '../actions/timelines';
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import {
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REBLOG_SUCCESS,
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UNREBLOG_SUCCESS,
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FAVOURITE_SUCCESS,
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UNFAVOURITE_SUCCESS
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} from '../actions/interactions';
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import {
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ACCOUNT_FETCH_SUCCESS,
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ACCOUNT_TIMELINE_FETCH_SUCCESS,
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ACCOUNT_TIMELINE_EXPAND_SUCCESS,
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ACCOUNT_BLOCK_SUCCESS
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} from '../actions/accounts';
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import {
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STATUS_FETCH_SUCCESS,
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CONTEXT_FETCH_SUCCESS
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} from '../actions/statuses';
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import Immutable from 'immutable';
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const initialState = Immutable.Map({
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home: Immutable.Map({
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loaded: false,
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top: true,
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items: Immutable.List()
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}),
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mentions: Immutable.Map({
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loaded: false,
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top: true,
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items: Immutable.List()
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}),
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public: Immutable.Map({
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loaded: false,
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top: true,
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items: Immutable.List()
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}),
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tag: Immutable.Map({
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id: null,
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loaded: false,
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top: true,
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items: Immutable.List()
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}),
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accounts_timelines: Immutable.Map(),
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ancestors: Immutable.Map(),
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descendants: Immutable.Map()
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});
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const normalizeStatus = (state, status) => {
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const replyToId = status.get('in_reply_to_id');
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const id = status.get('id');
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if (replyToId) {
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if (!state.getIn(['descendants', replyToId], Immutable.List()).includes(id)) {
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state = state.updateIn(['descendants', replyToId], Immutable.List(), set => set.push(id));
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}
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if (!state.getIn(['ancestors', id], Immutable.List()).includes(replyToId)) {
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state = state.updateIn(['ancestors', id], Immutable.List(), set => set.push(replyToId));
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}
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}
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return state;
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};
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const normalizeTimeline = (state, timeline, statuses, replace = false) => {
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let ids = Immutable.List();
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const loaded = state.getIn([timeline, 'loaded']);
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statuses.forEach((status, i) => {
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state = normalizeStatus(state, status);
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ids = ids.set(i, status.get('id'));
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});
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state = state.setIn([timeline, 'loaded'], true);
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return state.updateIn([timeline, 'items'], Immutable.List(), list => (loaded ? list.unshift(...ids) : ids));
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};
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const appendNormalizedTimeline = (state, timeline, statuses) => {
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let moreIds = Immutable.List();
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statuses.forEach((status, i) => {
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state = normalizeStatus(state, status);
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moreIds = moreIds.set(i, status.get('id'));
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});
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return state.updateIn([timeline, 'items'], Immutable.List(), list => list.push(...moreIds));
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};
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const normalizeAccountTimeline = (state, accountId, statuses, replace = false) => {
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let ids = Immutable.List();
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statuses.forEach((status, i) => {
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state = normalizeStatus(state, status);
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ids = ids.set(i, status.get('id'));
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});
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return state.updateIn(['accounts_timelines', accountId], Immutable.List([]), list => (replace ? ids : list.unshift(...ids)));
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};
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const appendNormalizedAccountTimeline = (state, accountId, statuses) => {
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let moreIds = Immutable.List([]);
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statuses.forEach((status, i) => {
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state = normalizeStatus(state, status);
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moreIds = moreIds.set(i, status.get('id'));
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});
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return state.updateIn(['accounts_timelines', accountId], Immutable.List([]), list => list.push(...moreIds));
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};
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const updateTimeline = (state, timeline, status, references) => {
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const top = state.getIn([timeline, 'top']);
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state = normalizeStatus(state, status);
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state = state.updateIn([timeline, 'items'], Immutable.List(), list => {
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if (top && list.size > 40) {
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list = list.take(20);
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}
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if (list.includes(status.get('id'))) {
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return list;
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}
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const reblogOfId = status.getIn(['reblog', 'id'], null);
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if (reblogOfId !== null) {
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list = list.filterNot(itemId => references.includes(itemId));
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}
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return list.unshift(status.get('id'));
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});
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return state;
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};
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const deleteStatus = (state, id, accountId, references) => {
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// Remove references from timelines
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['home', 'mentions', 'public', 'tag'].forEach(function (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 references from account timelines
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state = state.updateIn(['accounts_timelines', accountId], Immutable.List([]), list => list.filterNot(item => item === id));
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// Remove references from context
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state.getIn(['descendants', id], Immutable.List()).forEach(descendantId => {
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state = state.updateIn(['ancestors', descendantId], Immutable.List(), list => list.filterNot(itemId => itemId === id));
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});
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state.getIn(['ancestors', id], Immutable.List()).forEach(ancestorId => {
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state = state.updateIn(['descendants', ancestorId], Immutable.List(), list => list.filterNot(itemId => itemId === id));
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});
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state = state.deleteIn(['descendants', id]).deleteIn(['ancestors', id]);
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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 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 normalizeContext = (state, id, ancestors, descendants) => {
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const ancestorsIds = ancestors.map(ancestor => ancestor.get('id'));
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const descendantsIds = descendants.map(descendant => descendant.get('id'));
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return state.withMutations(map => {
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map.setIn(['ancestors', id], ancestorsIds);
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map.setIn(['descendants', id], descendantsIds);
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});
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};
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const resetTimeline = (state, timeline, id) => {
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if (timeline === 'tag' && state.getIn([timeline, 'id']) !== id) {
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state = state.update(timeline, map => map
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.set('id', id)
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.set('loaded', false)
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.update('items', list => list.clear()));
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}
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return state;
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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_REFRESH_REQUEST:
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return resetTimeline(state, action.timeline, action.id);
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case TIMELINE_REFRESH_SUCCESS:
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return normalizeTimeline(state, action.timeline, Immutable.fromJS(action.statuses));
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case TIMELINE_EXPAND_SUCCESS:
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return appendNormalizedTimeline(state, action.timeline, Immutable.fromJS(action.statuses));
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case TIMELINE_UPDATE:
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return updateTimeline(state, action.timeline, Immutable.fromJS(action.status), action.references);
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case TIMELINE_DELETE:
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return deleteStatus(state, action.id, action.accountId, action.references);
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case CONTEXT_FETCH_SUCCESS:
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return normalizeContext(state, action.id, Immutable.fromJS(action.ancestors), Immutable.fromJS(action.descendants));
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case ACCOUNT_TIMELINE_FETCH_SUCCESS:
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return normalizeAccountTimeline(state, action.id, Immutable.fromJS(action.statuses), action.replace);
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case ACCOUNT_TIMELINE_EXPAND_SUCCESS:
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return appendNormalizedAccountTimeline(state, action.id, Immutable.fromJS(action.statuses));
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case ACCOUNT_BLOCK_SUCCESS:
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return filterTimelines(state, action.relationship, action.statuses);
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case TIMELINE_SCROLL_TOP:
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return state.setIn([action.timeline, 'top'], action.top);
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default:
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return state;
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}
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};
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