mirror of
https://github.com/mattermost/mattermost.git
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624 lines
24 KiB
JavaScript
624 lines
24 KiB
JavaScript
// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
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// See License.txt for license information.
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import $ from 'jquery';
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import Post from './post.jsx';
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import FloatingTimestamp from './floating_timestamp.jsx';
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import * as GlobalActions from 'action_creators/global_actions.jsx';
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import PreferenceStore from 'stores/preference_store.jsx';
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import UserStore from 'stores/user_store.jsx';
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import {createChannelIntroMessage} from 'utils/channel_intro_messages.jsx';
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import * as Utils from 'utils/utils.jsx';
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import DelayedAction from 'utils/delayed_action.jsx';
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import Constants from 'utils/constants.jsx';
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const Preferences = Constants.Preferences;
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import {FormattedDate, FormattedMessage} from 'react-intl';
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import React from 'react';
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import ReactDOM from 'react-dom';
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export default class PostsView extends React.Component {
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constructor(props) {
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super(props);
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this.updateState = this.updateState.bind(this);
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this.handleScroll = this.handleScroll.bind(this);
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this.handleScrollStop = this.handleScrollStop.bind(this);
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this.isAtBottom = this.isAtBottom.bind(this);
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this.loadMorePostsTop = this.loadMorePostsTop.bind(this);
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this.loadMorePostsBottom = this.loadMorePostsBottom.bind(this);
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this.createPosts = this.createPosts.bind(this);
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this.updateScrolling = this.updateScrolling.bind(this);
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this.handleResize = this.handleResize.bind(this);
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this.scrollToBottom = this.scrollToBottom.bind(this);
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this.scrollToBottomAnimated = this.scrollToBottomAnimated.bind(this);
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this.onUserChange = this.onUserChange.bind(this);
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this.jumpToPostNode = null;
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this.wasAtBottom = true;
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this.scrollHeight = 0;
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this.scrollStopAction = new DelayedAction(this.handleScrollStop);
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let profiles = UserStore.getProfiles();
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if (props.channel && props.channel.type === Constants.DM_CHANNEL) {
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profiles = Object.assign({}, profiles, UserStore.getDirectProfiles());
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}
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this.state = {
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displayNameType: PreferenceStore.get(Preferences.CATEGORY_DISPLAY_SETTINGS, 'name_format', 'false'),
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centerPosts: PreferenceStore.get(Preferences.CATEGORY_DISPLAY_SETTINGS, Preferences.CHANNEL_DISPLAY_MODE, Preferences.CHANNEL_DISPLAY_MODE_DEFAULT) === Preferences.CHANNEL_DISPLAY_MODE_CENTERED,
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isScrolling: false,
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topPostId: null,
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currentUser: UserStore.getCurrentUser(),
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profiles
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};
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}
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static get SCROLL_TYPE_FREE() {
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return 1;
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}
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static get SCROLL_TYPE_BOTTOM() {
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return 2;
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}
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static get SCROLL_TYPE_SIDEBAR_OPEN() {
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return 3;
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}
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static get SCROLL_TYPE_NEW_MESSAGE() {
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return 4;
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}
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static get SCROLL_TYPE_POST() {
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return 5;
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}
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updateState() {
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this.setState({
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displayNameType: PreferenceStore.get(Preferences.CATEGORY_DISPLAY_SETTINGS, 'name_format', 'false'),
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centerPosts: PreferenceStore.get(Preferences.CATEGORY_DISPLAY_SETTINGS, Preferences.CHANNEL_DISPLAY_MODE, Preferences.CHANNEL_DISPLAY_MODE_DEFAULT) === Preferences.CHANNEL_DISPLAY_MODE_CENTERED
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});
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}
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onUserChange() {
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let profiles = UserStore.getProfiles();
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if (this.props.channel && this.props.channel.type === Constants.DM_CHANNEL) {
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profiles = Object.assign({}, profiles, UserStore.getDirectProfiles());
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}
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this.setState({currentUser: UserStore.getCurrentUser(), profiles: JSON.parse(JSON.stringify(profiles))});
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}
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isAtBottom() {
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// consider the view to be at the bottom if it's within this many pixels of the bottom
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const atBottomMargin = 10;
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return this.refs.postlist.clientHeight + this.refs.postlist.scrollTop >= this.refs.postlist.scrollHeight - atBottomMargin;
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}
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handleScroll() {
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// HACK FOR RHS -- REMOVE WHEN RHS DIES
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const childNodes = this.refs.postlistcontent.childNodes;
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for (let i = 0; i < childNodes.length; i++) {
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// If the node is 1/3 down the page
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if (childNodes[i].offsetTop > (this.refs.postlist.scrollTop + (this.refs.postlist.offsetHeight / 3))) {
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this.jumpToPostNode = childNodes[i];
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break;
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}
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}
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this.wasAtBottom = this.isAtBottom();
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if (!this.jumpToPostNode && childNodes.length > 0) {
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this.jumpToPostNode = childNodes[childNodes.length - 1];
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}
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// --- --------
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this.props.postViewScrolled(this.isAtBottom());
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this.prevScrollHeight = this.refs.postlist.scrollHeight;
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this.prevOffsetTop = this.jumpToPostNode.offsetTop;
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this.updateFloatingTimestamp();
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if (!this.state.isScrolling) {
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this.setState({
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isScrolling: true
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});
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}
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this.scrollStopAction.fireAfter(2000);
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}
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handleScrollStop() {
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this.setState({
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isScrolling: false
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});
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}
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updateFloatingTimestamp() {
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// skip this in non-mobile view since that's when the timestamp is visible
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if ($(window).width() > 768) {
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return;
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}
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if (this.props.postList) {
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// iterate through posts starting at the bottom since users are more likely to be viewing newer posts
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for (let i = 0; i < this.props.postList.order.length; i++) {
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const id = this.props.postList.order[i];
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const element = ReactDOM.findDOMNode(this.refs[id]);
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if (!element || element.offsetTop + element.clientHeight <= this.refs.postlist.scrollTop) {
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// this post is off the top of the screen so the last one is at the top of the screen
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let topPostId;
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if (i > 0) {
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topPostId = this.props.postList.order[i - 1];
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} else {
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// the first post we look at should always be on the screen, but handle that case anyway
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topPostId = id;
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}
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if (topPostId !== this.state.topPostId) {
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this.setState({
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topPostId
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});
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}
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break;
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}
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}
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}
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}
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loadMorePostsTop() {
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this.props.loadMorePostsTopClicked();
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}
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loadMorePostsBottom() {
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this.props.loadMorePostsBottomClicked();
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}
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createPosts(posts, order) {
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const postCtls = [];
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let previousPostDay = new Date(0);
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const userId = this.state.currentUser.id;
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const profiles = this.state.profiles || {};
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let renderedLastViewed = false;
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for (let i = order.length - 1; i >= 0; i--) {
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const post = posts[order[i]];
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const parentPost = posts[post.parent_id];
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const prevPost = posts[order[i + 1]];
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const postUserId = Utils.isSystemMessage(post) ? '' : post.user_id;
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// If the post is a comment whose parent has been deleted, don't add it to the list.
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if (parentPost && parentPost.state === Constants.POST_DELETED) {
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continue;
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}
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let sameUser = false;
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let sameRoot = false;
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let hideProfilePic = false;
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if (prevPost) {
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const postIsComment = Utils.isComment(post);
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const prevPostIsComment = Utils.isComment(prevPost);
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const postFromWebhook = Boolean(post.props && post.props.from_webhook);
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const prevPostFromWebhook = Boolean(prevPost.props && prevPost.props.from_webhook);
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const prevPostUserId = Utils.isSystemMessage(prevPost) ? '' : prevPost.user_id;
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// consider posts from the same user if:
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// the previous post was made by the same user as the current post,
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// the previous post was made within 5 minutes of the current post,
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// the current post is not from a webhook
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// the previous post is not from a webhook
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if (prevPostUserId === postUserId &&
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post.create_at - prevPost.create_at <= 1000 * 60 * 5 &&
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!postFromWebhook && !prevPostFromWebhook) {
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sameUser = true;
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}
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// consider posts from the same root if:
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// the current post is a comment,
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// the current post has the same root as the previous post
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if (postIsComment && (prevPost.id === post.root_id || prevPost.root_id === post.root_id)) {
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sameRoot = true;
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}
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// consider posts from the same root if:
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// the current post is not a comment,
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// the previous post is not a comment,
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// the previous post is from the same user
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if (!postIsComment && !prevPostIsComment && sameUser) {
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sameRoot = true;
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}
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// hide the profile pic if:
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// the previous post was made by the same user as the current post,
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// the previous post is not a comment,
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// the current post is not a comment,
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// the previous post is not from a webhook
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// the current post is not from a webhook
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if (prevPostUserId === postUserId &&
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!prevPostIsComment &&
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!postIsComment &&
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!prevPostFromWebhook &&
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!postFromWebhook) {
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hideProfilePic = true;
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}
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}
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// check if it's the last comment in a consecutive string of comments on the same post
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// it is the last comment if it is last post in the channel or the next post has a different root post
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const isLastComment = Utils.isComment(post) && (i === 0 || posts[order[i - 1]].root_id !== post.root_id);
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const keyPrefix = post.id ? post.id : i;
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const shouldHighlight = this.props.postsToHighlight && this.props.postsToHighlight.hasOwnProperty(post.id);
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let profile;
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if (userId === post.user_id) {
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profile = this.state.currentUser;
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} else {
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profile = profiles[post.user_id];
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}
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const postCtl = (
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<Post
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key={keyPrefix + 'postKey'}
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ref={post.id}
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sameUser={sameUser}
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sameRoot={sameRoot}
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post={post}
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parentPost={parentPost}
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posts={posts}
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hideProfilePic={hideProfilePic}
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isLastComment={isLastComment}
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shouldHighlight={shouldHighlight}
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onClick={() => GlobalActions.emitPostFocusEvent(post.id)} //eslint-disable-line no-loop-func
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displayNameType={this.state.displayNameType}
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user={profile}
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currentUser={this.state.currentUser}
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center={this.state.centerPosts}
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/>
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);
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const currentPostDay = Utils.getDateForUnixTicks(post.create_at);
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if (currentPostDay.toDateString() !== previousPostDay.toDateString()) {
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postCtls.push(
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<div
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key={currentPostDay.toDateString()}
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className='date-separator'
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>
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<hr className='separator__hr'/>
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<div className='separator__text'>
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<FormattedDate
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value={currentPostDay}
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weekday='short'
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month='short'
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day='2-digit'
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year='numeric'
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/>
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</div>
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</div>
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);
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}
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if (postUserId !== userId &&
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this.props.messageSeparatorTime !== 0 &&
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post.create_at > this.props.messageSeparatorTime &&
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!renderedLastViewed) {
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renderedLastViewed = true;
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// Temporary fix to solve ie11 rendering issue
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let newSeparatorId = '';
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if (!Utils.isBrowserIE()) {
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newSeparatorId = 'new_message_' + post.id;
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}
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postCtls.push(
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<div
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id={newSeparatorId}
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key='unviewed'
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ref='newMessageSeparator'
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className='new-separator'
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>
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<hr
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className='separator__hr'
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/>
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<div className='separator__text'>
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<FormattedMessage
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id='posts_view.newMsg'
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defaultMessage='New Messages'
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/>
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</div>
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</div>
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);
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}
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postCtls.push(postCtl);
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previousPostDay = currentPostDay;
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}
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return postCtls;
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}
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updateScrolling() {
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if (this.props.scrollType === PostsView.SCROLL_TYPE_BOTTOM) {
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this.scrollToBottom();
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} else if (this.props.scrollType === PostsView.SCROLL_TYPE_NEW_MESSAGE) {
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window.setTimeout(window.requestAnimationFrame(() => {
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// If separator exists scroll to it. Otherwise scroll to bottom.
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if (this.refs.newMessageSeparator) {
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var objDiv = this.refs.postlist;
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objDiv.scrollTop = this.refs.newMessageSeparator.offsetTop; //scrolls node to top of Div
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} else if (this.refs.postlist) {
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this.refs.postlist.scrollTop = this.refs.postlist.scrollHeight;
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}
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}), 0);
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} else if (this.props.scrollType === PostsView.SCROLL_TYPE_POST && this.props.scrollPostId) {
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window.requestAnimationFrame(() => {
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const postNode = ReactDOM.findDOMNode(this.refs[this.props.scrollPostId]);
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if (postNode == null) {
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return;
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}
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postNode.scrollIntoView();
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if (this.refs.postlist.scrollTop === postNode.offsetTop) {
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this.refs.postlist.scrollTop -= (this.refs.postlist.offsetHeight / 3);
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} else {
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this.refs.postlist.scrollTop -= (this.refs.postlist.offsetHeight / 3) + (this.refs.postlist.scrollTop - postNode.offsetTop);
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}
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});
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} else if (this.props.scrollType === PostsView.SCROLL_TYPE_SIDEBAR_OPEN) {
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// If we are at the bottom then stay there
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if (this.wasAtBottom) {
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this.refs.postlist.scrollTop = this.refs.postlist.scrollHeight;
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} else {
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window.requestAnimationFrame(() => {
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this.jumpToPostNode.scrollIntoView();
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if (this.refs.postlist.scrollTop === this.jumpToPostNode.offsetTop) {
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this.refs.postlist.scrollTop -= (this.refs.postlist.offsetHeight / 3);
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} else {
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this.refs.postlist.scrollTop -= (this.refs.postlist.offsetHeight / 3) + (this.refs.postlist.scrollTop - this.jumpToPostNode.offsetTop);
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}
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});
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}
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} else if (this.refs.postlist.scrollHeight !== this.prevScrollHeight) {
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window.requestAnimationFrame(() => {
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// Only need to jump if we added posts to the top.
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if (this.jumpToPostNode && (this.jumpToPostNode.offsetTop !== this.prevOffsetTop)) {
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this.refs.postlist.scrollTop += (this.refs.postlist.scrollHeight - this.prevScrollHeight);
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}
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});
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}
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}
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handleResize() {
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this.updateScrolling();
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}
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scrollToBottom() {
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window.requestAnimationFrame(() => {
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this.refs.postlist.scrollTop = this.refs.postlist.scrollHeight;
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});
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}
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scrollToBottomAnimated() {
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var postList = $(this.refs.postlist);
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postList.animate({scrollTop: this.refs.postlist.scrollHeight}, '500');
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}
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getArchivesIntroMessage() {
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return (
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<div className='channel-intro'>
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<h4 className='channel-intro__title'>
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<FormattedMessage
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id='post_focus_view.beginning'
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defaultMessage='Beginning of Channel Archives'
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/>
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</h4>
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</div>
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);
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}
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componentDidMount() {
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if (this.props.postList != null) {
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this.updateScrolling();
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}
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if (this.props.isActive) {
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PreferenceStore.addChangeListener(this.updateState);
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UserStore.addChangeListener(this.onUserChange);
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}
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if (this.props.channel) {
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this.introText = createChannelIntroMessage(this.props.channel);
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} else {
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this.introText = this.getArchivesIntroMessage();
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}
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window.addEventListener('resize', this.handleResize);
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}
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componentWillUnmount() {
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window.removeEventListener('resize', this.handleResize);
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this.scrollStopAction.cancel();
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PreferenceStore.removeChangeListener(this.updateState);
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UserStore.removeChangeListener(this.onUserChange);
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}
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componentDidUpdate() {
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if (this.props.postList != null) {
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this.updateScrolling();
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}
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}
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componentWillReceiveProps(nextProps) {
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if (!this.props.isActive && nextProps.isActive) {
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this.updateState();
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PreferenceStore.addChangeListener(this.updateState);
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UserStore.addChangeListener(this.onUserChange);
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} else if (this.props.isActive && !nextProps.isActive) {
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PreferenceStore.removeChangeListener(this.updateState);
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UserStore.removeChangeListener(this.onUserChange);
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}
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}
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shouldComponentUpdate(nextProps, nextState) {
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if (this.props.isActive !== nextProps.isActive) {
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return true;
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}
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if (this.props.postList !== nextProps.postList) {
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return true;
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}
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if (this.props.scrollPostId !== nextProps.scrollPostId) {
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return true;
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}
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if (this.props.scrollType !== nextProps.scrollType && nextProps.scrollType !== PostsView.SCROLL_TYPE_FREE) {
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return true;
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}
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if (this.props.messageSeparatorTime !== nextProps.messageSeparatorTime) {
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return true;
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}
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if (!Utils.areObjectsEqual(this.props.postList, nextProps.postList)) {
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return true;
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}
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if (nextState.displayNameType !== this.state.displayNameType) {
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return true;
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}
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if (this.state.topPostId !== nextState.topPostId) {
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return true;
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}
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if (this.state.isScrolling !== nextState.isScrolling) {
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return true;
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}
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if (this.state.centerPosts !== nextState.centerPosts) {
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return true;
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}
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if (!Utils.areObjectsEqual(this.state.profiles, nextState.profiles)) {
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return true;
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}
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return false;
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}
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render() {
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let posts = [];
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let order = [];
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let moreMessagesTop;
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let moreMessagesBottom;
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let postElements;
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let activeClass = 'inactive';
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if (this.props.postList != null) {
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posts = this.props.postList.posts;
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order = this.props.postList.order;
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// Create intro message or top loadmore link
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if (this.props.showMoreMessagesTop) {
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moreMessagesTop = (
|
|
<a
|
|
ref='loadmoretop'
|
|
className='more-messages-text theme'
|
|
href='#'
|
|
onClick={this.loadMorePostsTop}
|
|
>
|
|
<FormattedMessage
|
|
id='posts_view.loadMore'
|
|
defaultMessage='Load more messages'
|
|
/>
|
|
</a>
|
|
);
|
|
} else {
|
|
moreMessagesTop = this.introText;
|
|
}
|
|
|
|
// Give option to load more posts at bottom if nessisary
|
|
if (this.props.showMoreMessagesBottom) {
|
|
moreMessagesBottom = (
|
|
<a
|
|
ref='loadmorebottom'
|
|
className='more-messages-text theme'
|
|
href='#'
|
|
onClick={this.loadMorePostsBottom}
|
|
>
|
|
<FormattedMessage id='posts_view.loadMore'/>
|
|
</a>
|
|
);
|
|
} else {
|
|
moreMessagesBottom = null;
|
|
}
|
|
|
|
// Create post elements
|
|
postElements = this.createPosts(posts, order);
|
|
|
|
// Show ourselves if we are marked active
|
|
if (this.props.isActive) {
|
|
activeClass = '';
|
|
}
|
|
}
|
|
|
|
let topPostCreateAt = 0;
|
|
if (this.state.topPostId && this.props.postList.posts[this.state.topPostId]) {
|
|
topPostCreateAt = this.props.postList.posts[this.state.topPostId].create_at;
|
|
}
|
|
|
|
return (
|
|
<div className={activeClass}>
|
|
<FloatingTimestamp
|
|
isScrolling={this.state.isScrolling}
|
|
isMobile={$(window).width() > 768}
|
|
createAt={topPostCreateAt}
|
|
/>
|
|
<ScrollToBottomArrows
|
|
isScrolling={this.state.isScrolling}
|
|
atBottom={this.wasAtBottom}
|
|
onClick={this.scrollToBottomAnimated}
|
|
/>
|
|
<div
|
|
ref='postlist'
|
|
className='post-list-holder-by-time'
|
|
onScroll={this.handleScroll}
|
|
>
|
|
<div className='post-list__table'>
|
|
<div
|
|
ref='postlistcontent'
|
|
className='post-list__content'
|
|
>
|
|
{moreMessagesTop}
|
|
{postElements}
|
|
{moreMessagesBottom}
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
);
|
|
}
|
|
}
|
|
PostsView.defaultProps = {
|
|
};
|
|
|
|
PostsView.propTypes = {
|
|
isActive: React.PropTypes.bool,
|
|
postList: React.PropTypes.object,
|
|
scrollPostId: React.PropTypes.string,
|
|
scrollType: React.PropTypes.number,
|
|
postViewScrolled: React.PropTypes.func.isRequired,
|
|
loadMorePostsTopClicked: React.PropTypes.func.isRequired,
|
|
loadMorePostsBottomClicked: React.PropTypes.func.isRequired,
|
|
showMoreMessagesTop: React.PropTypes.bool,
|
|
showMoreMessagesBottom: React.PropTypes.bool,
|
|
channel: React.PropTypes.object,
|
|
messageSeparatorTime: React.PropTypes.number,
|
|
postsToHighlight: React.PropTypes.object
|
|
};
|
|
|
|
function ScrollToBottomArrows({isScrolling, atBottom, onClick}) {
|
|
// only show on mobile
|
|
if ($(window).width() > 768) {
|
|
return <noscript/>;
|
|
}
|
|
|
|
let className = 'post-list__arrows';
|
|
if (isScrolling && !atBottom) {
|
|
className += ' scrolling';
|
|
}
|
|
|
|
return (
|
|
<div
|
|
className={className}
|
|
onClick={onClick}
|
|
>
|
|
<span dangerouslySetInnerHTML={{__html: Constants.SCROLL_BOTTOM_ICON}}/>
|
|
</div>
|
|
);
|
|
}
|
|
|
|
ScrollToBottomArrows.propTypes = {
|
|
isScrolling: React.PropTypes.bool.isRequired,
|
|
atBottom: React.PropTypes.bool.isRequired,
|
|
onClick: React.PropTypes.func.isRequired
|
|
};
|