From 023fe5181b66ba2cbd20cca4e3bd34f132deba52 Mon Sep 17 00:00:00 2001 From: Akihiko Odaki Date: Sat, 26 May 2018 01:46:28 +0900 Subject: [PATCH] Introduce flat layout to contexts reducer (#7150) This allows to filter out replies in threads even if contexts of those replies are not fetched. --- app/javascript/mastodon/actions/timelines.js | 20 ---- .../mastodon/features/status/index.js | 47 +++++++++- app/javascript/mastodon/reducers/contexts.js | 94 ++++++++++++------- 3 files changed, 101 insertions(+), 60 deletions(-) diff --git a/app/javascript/mastodon/actions/timelines.js b/app/javascript/mastodon/actions/timelines.js index 8f54dfd8a0..11a199db6a 100644 --- a/app/javascript/mastodon/actions/timelines.js +++ b/app/javascript/mastodon/actions/timelines.js @@ -13,21 +13,9 @@ export const TIMELINE_SCROLL_TOP = 'TIMELINE_SCROLL_TOP'; export const TIMELINE_DISCONNECT = 'TIMELINE_DISCONNECT'; -export const TIMELINE_CONTEXT_UPDATE = 'CONTEXT_UPDATE'; - export function updateTimeline(timeline, status) { return (dispatch, getState) => { const references = status.reblog ? getState().get('statuses').filter((item, itemId) => (itemId === status.reblog.id || item.get('reblog') === status.reblog.id)).map((_, itemId) => itemId) : []; - const parents = []; - - if (status.in_reply_to_id) { - let parent = getState().getIn(['statuses', status.in_reply_to_id]); - - while (parent && parent.get('in_reply_to_id')) { - parents.push(parent.get('id')); - parent = getState().getIn(['statuses', parent.get('in_reply_to_id')]); - } - } dispatch(importFetchedStatus(status)); @@ -37,14 +25,6 @@ export function updateTimeline(timeline, status) { status, references, }); - - if (parents.length > 0) { - dispatch({ - type: TIMELINE_CONTEXT_UPDATE, - status, - references: parents, - }); - } }; }; diff --git a/app/javascript/mastodon/features/status/index.js b/app/javascript/mastodon/features/status/index.js index d5af2a459c..2e53dfa7e7 100644 --- a/app/javascript/mastodon/features/status/index.js +++ b/app/javascript/mastodon/features/status/index.js @@ -1,3 +1,4 @@ +import Immutable from 'immutable'; import React from 'react'; import { connect } from 'react-redux'; import PropTypes from 'prop-types'; @@ -54,11 +55,47 @@ const messages = defineMessages({ const makeMapStateToProps = () => { const getStatus = makeGetStatus(); - const mapStateToProps = (state, props) => ({ - status: getStatus(state, props.params.statusId), - ancestorsIds: state.getIn(['contexts', 'ancestors', props.params.statusId]), - descendantsIds: state.getIn(['contexts', 'descendants', props.params.statusId]), - }); + const mapStateToProps = (state, props) => { + const status = getStatus(state, props.params.statusId); + let ancestorsIds = Immutable.List(); + let descendantsIds = Immutable.List(); + + if (status) { + ancestorsIds = ancestorsIds.withMutations(mutable => { + function addAncestor(id) { + if (id) { + const inReplyTo = state.getIn(['contexts', 'inReplyTos', id]); + + mutable.unshift(id); + addAncestor(inReplyTo); + } + } + + addAncestor(status.get('in_reply_to_id')); + }); + + descendantsIds = descendantsIds.withMutations(mutable => { + function addDescendantOf(id) { + const replies = state.getIn(['contexts', 'replies', id]); + + if (replies) { + replies.forEach(reply => { + mutable.push(reply); + addDescendantOf(reply); + }); + } + } + + addDescendantOf(status.get('id')); + }); + } + + return { + status, + ancestorsIds, + descendantsIds, + }; + }; return mapStateToProps; }; diff --git a/app/javascript/mastodon/reducers/contexts.js b/app/javascript/mastodon/reducers/contexts.js index ebd01e5327..53e70b58ef 100644 --- a/app/javascript/mastodon/reducers/contexts.js +++ b/app/javascript/mastodon/reducers/contexts.js @@ -3,38 +3,62 @@ import { ACCOUNT_MUTE_SUCCESS, } from '../actions/accounts'; import { CONTEXT_FETCH_SUCCESS } from '../actions/statuses'; -import { TIMELINE_DELETE, TIMELINE_CONTEXT_UPDATE } from '../actions/timelines'; +import { TIMELINE_DELETE, TIMELINE_UPDATE } from '../actions/timelines'; import { Map as ImmutableMap, List as ImmutableList } from 'immutable'; const initialState = ImmutableMap({ - ancestors: ImmutableMap(), - descendants: ImmutableMap(), + inReplyTos: ImmutableMap(), + replies: ImmutableMap(), }); -const normalizeContext = (state, id, ancestors, descendants) => { - const ancestorsIds = ImmutableList(ancestors.map(ancestor => ancestor.id)); - const descendantsIds = ImmutableList(descendants.map(descendant => descendant.id)); +const normalizeContext = (immutableState, id, ancestors, descendants) => immutableState.withMutations(state => { + state.update('inReplyTos', immutableAncestors => immutableAncestors.withMutations(inReplyTos => { + state.update('replies', immutableDescendants => immutableDescendants.withMutations(replies => { + function addReply({ id, in_reply_to_id }) { + if (in_reply_to_id) { + const siblings = replies.get(in_reply_to_id, ImmutableList()); - return state.withMutations(map => { - map.setIn(['ancestors', id], ancestorsIds); - map.setIn(['descendants', id], descendantsIds); - }); -}; + if (!siblings.includes(id)) { + const index = siblings.findLastIndex(sibling => sibling.id < id); + replies.set(in_reply_to_id, siblings.insert(index + 1, id)); + } + + inReplyTos.set(id, in_reply_to_id); + } + } + + if (ancestors[0]) { + addReply({ id, in_reply_to_id: ancestors[0].id }); + } + + if (descendants[0]) { + addReply({ id: descendants[0].id, in_reply_to_id: id }); + } + + [ancestors, descendants].forEach(statuses => statuses.forEach(addReply)); + })); + })); +}); const deleteFromContexts = (immutableState, ids) => immutableState.withMutations(state => { - state.update('ancestors', immutableAncestors => immutableAncestors.withMutations(ancestors => { - state.update('descendants', immutableDescendants => immutableDescendants.withMutations(descendants => { + state.update('inReplyTos', immutableAncestors => immutableAncestors.withMutations(inReplyTos => { + state.update('replies', immutableDescendants => immutableDescendants.withMutations(replies => { ids.forEach(id => { - descendants.get(id, ImmutableList()).forEach(descendantId => { - ancestors.update(descendantId, ImmutableList(), list => list.filterNot(itemId => itemId === id)); - }); + const inReplyToIdOfId = inReplyTos.get(id); + const repliesOfId = replies.get(id); + const siblings = replies.get(inReplyToIdOfId); - ancestors.get(id, ImmutableList()).forEach(ancestorId => { - descendants.update(ancestorId, ImmutableList(), list => list.filterNot(itemId => itemId === id)); - }); + if (siblings) { + replies.set(inReplyToIdOfId, siblings.filterNot(sibling => sibling === id)); + } - descendants.delete(id); - ancestors.delete(id); + + if (repliesOfId) { + repliesOfId.forEach(reply => inReplyTos.delete(reply)); + } + + inReplyTos.delete(id); + replies.delete(id); }); })); })); @@ -48,23 +72,23 @@ const filterContexts = (state, relationship, statuses) => { return deleteFromContexts(state, ownedStatusIds); }; -const updateContext = (state, status, references) => { - return state.update('descendants', map => { - references.forEach(parentId => { - map = map.update(parentId, ImmutableList(), list => { - if (list.includes(status.id)) { - return list; - } +const updateContext = (state, status) => { + if (status.in_reply_to_id) { + return state.withMutations(mutable => { + const replies = mutable.getIn(['replies', status.in_reply_to_id], ImmutableList()); - return list.push(status.id); - }); + mutable.setIn(['inReplyTos', status.id], status.in_reply_to_id); + + if (!replies.includes(status.id)) { + mutable.setIn(['replies', status.id], replies.push(status.id)); + } }); + } - return map; - }); + return state; }; -export default function contexts(state = initialState, action) { +export default function replies(state = initialState, action) { switch(action.type) { case ACCOUNT_BLOCK_SUCCESS: case ACCOUNT_MUTE_SUCCESS: @@ -73,8 +97,8 @@ export default function contexts(state = initialState, action) { return normalizeContext(state, action.id, action.ancestors, action.descendants); case TIMELINE_DELETE: return deleteFromContexts(state, [action.id]); - case TIMELINE_CONTEXT_UPDATE: - return updateContext(state, action.status, action.references); + case TIMELINE_UPDATE: + return updateContext(state, action.status); default: return state; }