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Fix context building in the reducer (#7671)

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This fixes below bugs:

* addReply() had used native compare operator for string ids
  => descendants may appears at wrong position
* CONTEXT_FETCH_SUCCESS had added the focused status as the reply of the *first* status in ancestors, not last status.
  => descendants may also appears wrong position as well as correct position
* TIMELINE_UPDATE had added the status to replies of *itself* instead of replied status
  => browser will hangs if you open the status due to a circular reference
This commit is contained in:
unarist 2018-05-30 00:42:29 +09:00 committed by Eugen Rochko
parent 0345cd5a0f
commit 7706ed038f
1 changed files with 14 additions and 13 deletions
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27
app/javascript/mastodon/reducers/contexts.js
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@ -5,6 +5,7 @@ import {
import { CONTEXT_FETCH_SUCCESS } from '../actions/statuses';
import { TIMELINE_DELETE, TIMELINE_UPDATE } from '../actions/timelines';
import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
import compareId from '../compare_id';
const initialState = ImmutableMap({
inReplyTos: ImmutableMap(),
@ -15,27 +16,27 @@ const normalizeContext = (immutableState, id, ancestors, descendants) => immutab
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());
if (in_reply_to_id && !inReplyTos.has(id)) {
if (!siblings.includes(id)) {
const index = siblings.findLastIndex(sibling => sibling.id < id);
replies.set(in_reply_to_id, siblings.insert(index + 1, id));
}
replies.update(in_reply_to_id, ImmutableList(), siblings => {
const index = siblings.findLastIndex(sibling => compareId(sibling, id) < 0);
return siblings.insert(index + 1, id);
});
inReplyTos.set(id, in_reply_to_id);
}
}
// We know in_reply_to_id of statuses but `id` itself.
// So we assume that the status of the id replies to last ancestors.
ancestors.forEach(addReply);
if (ancestors[0]) {
addReply({ id, in_reply_to_id: ancestors[0].id });
addReply({ id, in_reply_to_id: ancestors[ancestors.length - 1].id });
}
if (descendants[0]) {
addReply({ id: descendants[0].id, in_reply_to_id: id });
}
[ancestors, descendants].forEach(statuses => statuses.forEach(addReply));
descendants.forEach(addReply);
}));
}));
});
@ -80,7 +81,7 @@ const updateContext = (state, status) => {
mutable.setIn(['inReplyTos', status.id], status.in_reply_to_id);
if (!replies.includes(status.id)) {
mutable.setIn(['replies', status.id], replies.push(status.id));
mutable.setIn(['replies', status.in_reply_to_id], replies.push(status.id));
}
});
}