Plt-4483 Removed unnecessary events from ChannelStore (#4407)

* PLT-4483 Removed MoreChange listener from ChannelStore

* PLT-4483 Removed LeaveChannel listener from ChannelStore

webapp/components/channel_header.jsx

@@ -23,7 +23,6 @@ import SearchStore from 'stores/search_store.jsx';
 import PreferenceStore from 'stores/preference_store.jsx';
 import WebrtcStore from 'stores/webrtc_store.jsx';
 
-import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
 import * as GlobalActions from 'actions/global_actions.jsx';
 import * as WebrtcActions from 'actions/webrtc_actions.jsx';
 import * as ChannelActions from 'actions/channel_actions.jsx';
@@ -34,7 +33,7 @@ import Client from 'client/web_client.jsx';
 import * as AsyncClient from 'utils/async_client.jsx';
 import {getFlaggedPosts} from 'actions/post_actions.jsx';
 
-import {ActionTypes, Constants, Preferences, UserStatuses} from 'utils/constants.jsx';
+import {Constants, Preferences, UserStatuses} from 'utils/constants.jsx';
 
 import React from 'react';
 import {FormattedMessage} from 'react-intl';
@@ -130,11 +129,6 @@ export default class ChannelHeader extends React.Component {
             () => {
                 const channelId = this.state.channel.id;
 
-                AppDispatcher.handleViewAction({
-                    type: ActionTypes.LEAVE_CHANNEL,
-                    id: channelId
-                });
-
                 if (this.state.isFavorite) {
                     ChannelActions.unmarkFavorite(channelId);
                 }

webapp/components/more_channels.jsx

@@ -41,7 +41,7 @@ export default class MoreChannels extends React.Component {
 
     componentDidMount() {
         const self = this;
-        ChannelStore.addMoreChangeListener(this.onListenerChange);
+        ChannelStore.addChangeListener(this.onListenerChange);
 
         $(this.refs.modal).on('shown.bs.modal', () => {
             AsyncClient.getMoreChannels(true);
@@ -54,7 +54,7 @@ export default class MoreChannels extends React.Component {
     }
 
     componentWillUnmount() {
-        ChannelStore.removeMoreChangeListener(this.onListenerChange);
+        ChannelStore.removeChangeListener(this.onListenerChange);
     }
 
     getStateFromStores() {

webapp/components/post_view/components/post_message_container.jsx

@@ -48,7 +48,6 @@ export default class PostMessageContainer extends React.Component {
         PreferenceStore.addChangeListener(this.onPreferenceChange);
         UserStore.addChangeListener(this.onUserChange);
         ChannelStore.addChangeListener(this.onChannelChange);
-        ChannelStore.addMoreChangeListener(this.onChannelChange);
     }
 
     componentWillUnmount() {
@@ -56,7 +55,6 @@ export default class PostMessageContainer extends React.Component {
         PreferenceStore.removeChangeListener(this.onPreferenceChange);
         UserStore.removeChangeListener(this.onUserChange);
         ChannelStore.removeChangeListener(this.onChannelChange);
-        ChannelStore.removeMoreChangeListener(this.onChannelChange);
     }
 
     onEmojiChange() {

webapp/stores/channel_store.jsx

@@ -5,13 +5,10 @@ import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
 import EventEmitter from 'events';
 
 var Utils;
-import Constants from 'utils/constants.jsx';
+import {ActionTypes, Constants} from 'utils/constants.jsx';
-const ActionTypes = Constants.ActionTypes;
 const NotificationPrefs = Constants.NotificationPrefs;
 
 const CHANGE_EVENT = 'change';
-const LEAVE_EVENT = 'leave';
-const MORE_CHANGE_EVENT = 'change';
 const STATS_EVENT = 'stats';
 const LAST_VIEVED_EVENT = 'last_viewed';
 
@@ -50,18 +47,6 @@ class ChannelStoreClass extends EventEmitter {
         this.removeListener(CHANGE_EVENT, callback);
     }
 
-    emitMoreChange() {
-        this.emit(MORE_CHANGE_EVENT);
-    }
-
-    addMoreChangeListener(callback) {
-        this.on(MORE_CHANGE_EVENT, callback);
-    }
-
-    removeMoreChangeListener(callback) {
-        this.removeListener(MORE_CHANGE_EVENT, callback);
-    }
-
     emitStatsChange() {
         this.emit(STATS_EVENT);
     }
@@ -73,17 +58,6 @@ class ChannelStoreClass extends EventEmitter {
     removeStatsChangeListener(callback) {
         this.removeListener(STATS_EVENT, callback);
     }
-    emitLeave(id) {
-        this.emit(LEAVE_EVENT, id);
-    }
-
-    addLeaveListener(callback) {
-        this.on(LEAVE_EVENT, callback);
-    }
-
-    removeLeaveListener(callback) {
-        this.removeListener(LEAVE_EVENT, callback);
-    }
 
     emitLastViewed(lastViewed, ownNewMessage) {
         this.emit(LAST_VIEVED_EVENT, lastViewed, ownNewMessage);
@@ -321,14 +295,6 @@ class ChannelStoreClass extends EventEmitter {
         return this.unreadCounts;
     }
 
-    leaveChannel(id) {
-        Reflect.deleteProperty(this.myChannelMembers, id);
-        const element = this.channels.indexOf(id);
-        if (element > -1) {
-            this.channels.splice(element, 1);
-        }
-    }
-
     getChannelNamesMap() {
         var channelNamesMap = {};
 
@@ -404,7 +370,7 @@ ChannelStore.dispatchToken = AppDispatcher.register((payload) => {
         break;
     case ActionTypes.RECEIVED_MORE_CHANNELS:
         ChannelStore.storeMoreChannels(action.channels);
-        ChannelStore.emitMoreChange();
+        ChannelStore.emitChange();
         break;
 
     case ActionTypes.RECEIVED_CHANNEL_STATS:
@@ -414,11 +380,6 @@ ChannelStore.dispatchToken = AppDispatcher.register((payload) => {
         ChannelStore.emitStatsChange();
         break;
 
-    case ActionTypes.LEAVE_CHANNEL:
-        ChannelStore.leaveChannel(action.id);
-        ChannelStore.emitLeave(action.id);
-        break;
-
     default:
         break;
     }

webapp/utils/constants.jsx

@@ -63,7 +63,6 @@ export const ActionTypes = keyMirror({
 
     CLICK_CHANNEL: null,
     CREATE_CHANNEL: null,
-    LEAVE_CHANNEL: null,
     CREATE_POST: null,
     CREATE_COMMENT: null,
     POST_DELETED: null,