1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
import PostsView from './posts_view.jsx';
import LoadingScreen from './loading_screen.jsx';
import ChannelInviteModal from './channel_invite_modal.jsx';
import ChannelStore from '../stores/channel_store.jsx';
import PostStore from '../stores/post_store.jsx';
import * as Utils from '../utils/utils.jsx';
import * as EventHelpers from '../dispatcher/event_helpers.jsx';
import Constants from '../utils/constants.jsx';
import {createChannelIntroMessage} from '../utils/channel_intro_mssages.jsx';
export default class PostsViewContainer extends React.Component {
constructor() {
super();
this.onChannelChange = this.onChannelChange.bind(this);
this.onChannelLeave = this.onChannelLeave.bind(this);
this.onPostsChange = this.onPostsChange.bind(this);
this.handlePostsViewScroll = this.handlePostsViewScroll.bind(this);
this.loadMorePostsTop = this.loadMorePostsTop.bind(this);
this.handlePostsViewJumpRequest = this.handlePostsViewJumpRequest.bind(this);
const currentChannelId = ChannelStore.getCurrentId();
const state = {
scrollType: PostsView.SCROLL_TYPE_BOTTOM,
scrollPost: null
};
if (currentChannelId) {
Object.assign(state, {
currentChannelIndex: 0,
channels: [currentChannelId],
postLists: [this.getChannelPosts(currentChannelId)],
atTop: [PostStore.getVisibilityAtTop(currentChannelId)]
});
} else {
Object.assign(state, {
currentChannelIndex: null,
channels: [],
postLists: [],
atTop: []
});
}
state.showInviteModal = false;
this.state = state;
}
componentDidMount() {
ChannelStore.addChangeListener(this.onChannelChange);
ChannelStore.addLeaveListener(this.onChannelLeave);
PostStore.addChangeListener(this.onPostsChange);
PostStore.addPostsViewJumpListener(this.handlePostsViewJumpRequest);
}
componentWillUnmount() {
ChannelStore.removeChangeListener(this.onChannelChange);
ChannelStore.removeLeaveListener(this.onChannelLeave);
PostStore.removeChangeListener(this.onPostsChange);
PostStore.removePostsViewJumpListener(this.handlePostsViewJumpRequest);
}
handlePostsViewJumpRequest(type, post) {
switch (type) {
case Constants.PostsViewJumpTypes.BOTTOM:
this.setState({scrollType: PostsView.SCROLL_TYPE_BOTTOM});
break;
case Constants.PostsViewJumpTypes.POST:
this.setState({
scrollType: PostsView.SCROLL_TYPE_POST,
scrollPost: post
});
break;
case Constants.PostsViewJumpTypes.SIDEBAR_OPEN:
this.setState({scrollType: PostsView.SCROLL_TYPE_SIDEBAR_OPEN});
break;
}
}
onChannelChange() {
const postLists = this.state.postLists.slice();
const atTop = this.state.atTop.slice();
const channels = this.state.channels.slice();
const channelId = ChannelStore.getCurrentId();
// Has the channel really changed?
if (channelId === channels[this.state.currentChannelIndex]) {
return;
}
let lastViewed = Number.MAX_VALUE;
const member = ChannelStore.getMember(channelId);
if (member != null) {
lastViewed = member.last_viewed_at;
}
let newIndex = channels.indexOf(channelId);
if (newIndex === -1) {
newIndex = channels.length;
channels.push(channelId);
postLists[newIndex] = this.getChannelPosts(channelId);
atTop[newIndex] = PostStore.getVisibilityAtTop(channelId);
}
this.setState({
currentChannelIndex: newIndex,
currentLastViewed: lastViewed,
scrollType: PostsView.SCROLL_TYPE_NEW_MESSAGE,
channels,
postLists,
atTop});
}
onChannelLeave(id) {
const postLists = this.state.postLists.slice();
const channels = this.state.channels.slice();
const atTop = this.state.atTop.slice();
const index = channels.indexOf(id);
if (index !== -1) {
postLists.splice(index, 1);
channels.splice(index, 1);
atTop.splice(index, 1);
}
this.setState({channels, postLists, atTop});
}
onPostsChange() {
const channels = this.state.channels;
const postLists = this.state.postLists.slice();
const atTop = this.state.atTop.slice();
const currentChannelId = channels[this.state.currentChannelIndex];
const newPostsView = this.getChannelPosts(currentChannelId);
postLists[this.state.currentChannelIndex] = newPostsView;
atTop[this.state.currentChannelIndex] = PostStore.getVisibilityAtTop(currentChannelId);
this.setState({postLists, atTop});
}
getChannelPosts(id) {
return PostStore.getVisiblePosts(id);
}
loadMorePostsTop() {
EventHelpers.emitLoadMorePostsEvent();
}
handlePostsViewScroll(atBottom) {
if (atBottom) {
this.setState({scrollType: PostsView.SCROLL_TYPE_BOTTOM});
} else {
this.setState({scrollType: PostsView.SCROLL_TYPE_FREE});
}
}
shouldComponentUpdate(nextProps, nextState) {
if (Utils.areObjectsEqual(this.state, nextState)) {
return false;
}
return true;
}
render() {
const postLists = this.state.postLists;
const channels = this.state.channels;
const currentChannelId = channels[this.state.currentChannelIndex];
const channel = ChannelStore.get(currentChannelId);
const postListCtls = [];
for (let i = 0; i < channels.length; i++) {
const isActive = (channels[i] === currentChannelId);
postListCtls.push(
<PostsView
key={'postsviewkey' + i}
isActive={isActive}
postList={postLists[i]}
scrollType={this.state.scrollType}
scrollPostId={this.state.scrollPost}
postViewScrolled={this.handlePostsViewScroll}
loadMorePostsTopClicked={this.loadMorePostsTop}
loadMorePostsBottomClicked={() => {}}
showMoreMessagesTop={!this.state.atTop[this.state.currentChannelIndex]}
showMoreMessagesBottom={false}
introText={channel ? createChannelIntroMessage(channel, () => this.setState({showInviteModal: true})) : null}
messageSeparatorTime={this.state.currentLastViewed}
/>
);
if (!postLists[i] && isActive) {
postListCtls.push(
<LoadingScreen
position='absolute'
key='loading'
/>
);
}
}
return (
<div id='post-list'>
{postListCtls}
<ChannelInviteModal
show={this.state.showInviteModal}
onModalDismissed={() => this.setState({showInviteModal: false})}
/>
</div>
);
}
}
|
