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// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
import PostsView from './posts_view.jsx';
import PostStore from '../stores/post_store.jsx';
import ChannelStore from '../stores/channel_store.jsx';
import * as EventHelpers from '../dispatcher/event_helpers.jsx';
import {FormattedMessage} from 'mm-intl';
export default class PostFocusView extends React.Component {
constructor(props) {
super(props);
this.onChannelChange = this.onChannelChange.bind(this);
this.onPostsChange = this.onPostsChange.bind(this);
this.handlePostsViewScroll = this.handlePostsViewScroll.bind(this);
this.loadMorePostsTop = this.loadMorePostsTop.bind(this);
this.loadMorePostsBottom = this.loadMorePostsBottom.bind(this);
const focusedPostId = PostStore.getFocusedPostId();
this.state = {
scrollType: PostsView.SCROLL_TYPE_POST,
scrollPostId: focusedPostId,
postList: PostStore.getVisiblePosts(focusedPostId),
atTop: PostStore.getVisibilityAtTop(focusedPostId),
atBottom: PostStore.getVisibilityAtBottom(focusedPostId)
};
}
componentDidMount() {
ChannelStore.addChangeListener(this.onChannelChange);
PostStore.addChangeListener(this.onPostsChange);
}
componentWillUnmount() {
ChannelStore.removeChangeListener(this.onChannelChange);
PostStore.removeChangeListener(this.onPostsChange);
}
onChannelChange() {
this.setState({
scrollType: PostsView.SCROLL_TYPE_POST
});
}
onPostsChange() {
const focusedPostId = PostStore.getFocusedPostId();
if (focusedPostId == null) {
return;
}
this.setState({
scrollPostId: focusedPostId,
postList: PostStore.getVisiblePosts(focusedPostId),
atTop: PostStore.getVisibilityAtTop(focusedPostId),
atBottom: PostStore.getVisibilityAtBottom(focusedPostId)
});
}
handlePostsViewScroll() {
this.setState({scrollType: PostsView.SCROLL_TYPE_FREE});
}
loadMorePostsTop() {
EventHelpers.emitLoadMorePostsFocusedTopEvent();
}
loadMorePostsBottom() {
EventHelpers.emitLoadMorePostsFocusedBottomEvent();
}
getIntroMessage() {
return (
<div className='channel-intro'>
<h4 className='channel-intro__title'>
<FormattedMessage
id='post_focus_view.beginning'
defaultMessage='Beginning of Channel Archives'
/>
</h4>
</div>
);
}
render() {
const postsToHighlight = {};
postsToHighlight[this.state.scrollPostId] = true;
return (
<div id='post-list'>
<PostsView
key={'postfocusview'}
isActive={true}
postList={this.state.postList}
scrollType={this.state.scrollType}
scrollPostId={this.state.scrollPostId}
postViewScrolled={this.handlePostsViewScroll}
loadMorePostsTopClicked={this.loadMorePostsTop}
loadMorePostsBottomClicked={this.loadMorePostsBottom}
showMoreMessagesTop={!this.state.atTop}
showMoreMessagesBottom={!this.state.atBottom}
introText={this.getIntroMessage()}
messageSeparatorTime={0}
postsToHighlight={postsToHighlight}
/>
</div>
);
}
}
PostFocusView.defaultProps = {
};
PostFocusView.propTypes = {
};
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