Add selector to get Posts EmbedVisible flags for RHS.

selectors/rhs.jsx

@@ -4,9 +4,10 @@
 import {createSelector} from 'reselect';
 import {getCurrentUserId} from 'mattermost-redux/selectors/entities/users';
 
-import {makeGetGlobalItem} from 'selectors/storage';
+import {makeGetGlobalItem, makeGetItem} from 'selectors/storage';
+
+import {PostTypes, StoragePrefixes} from 'utils/constants.jsx';
 
-import {PostTypes} from 'utils/constants.jsx';
 import {localizeMessage} from 'utils/utils.jsx';
 
 export function getSelectedPostId(state) {
@@ -46,4 +47,15 @@ export const getSelectedPost = createSelector(
 export function makeGetCommentDraft(rootId) {
  const defaultValue = {message: '', fileInfos: [], uploadsInProgress: []};
  return makeGetGlobalItem(`comment_draft_${rootId}`, defaultValue);
-}
+}
+
+export const getPostsEmbedVisibleObj = createSelector(
+ (state) => state,
+ (state, {posts, previewCollapsed}) => ({posts, previewCollapsed}),
+ (state, {posts, previewCollapsed}) => {
+ return posts.reduce((accumulatedEmbedVisibleFlags, post) => ({
+ ...accumulatedEmbedVisibleFlags,
+ [post.id]: makeGetItem(StoragePrefixes.EMBED_VISIBLE + post.id, previewCollapsed.startsWith('false'))(state)
+ }), {});
+ },
+);