add helper method to initiate a direct channel chat

web/react/components/more_direct_channels.jsx

@@ -1,13 +1,7 @@
 // Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
 // See License.txt for license information.
 
-const AsyncClient = require('../utils/async_client.jsx');
-const ChannelStore = require('../stores/channel_store.jsx');
-const Constants = require('../utils/constants.jsx');
-const Client = require('../utils/client.jsx');
 const Modal = ReactBootstrap.Modal;
-const PreferenceStore = require('../stores/preference_store.jsx');
-const TeamStore = require('../stores/team_store.jsx');
 const UserStore = require('../stores/user_store.jsx');
 const Utils = require('../utils/utils.jsx');
 
@@ -70,52 +64,24 @@ export default class MoreDirectChannels extends React.Component {
     }
 
     handleShowDirectChannel(teammate, e) {
+        e.preventDefault();
+
         if (this.state.loadingDMChannel !== -1) {
             return;
         }
 
-        e.preventDefault();
-
-        const channelName = Utils.getDirectChannelName(UserStore.getCurrentId(), teammate.id);
-        let channel = ChannelStore.getByName(channelName);
-
-        const preference = PreferenceStore.setPreference(Constants.Preferences.CATEGORY_DIRECT_CHANNEL_SHOW, teammate.id, 'true');
-        AsyncClient.savePreferences([preference]);
-
-        if (channel) {
-            Utils.switchChannel(channel);
-
-            this.handleHide();
-        } else {
-            this.setState({loadingDMChannel: teammate.id});
-
-            channel = {
-                name: channelName,
-                last_post_at: 0,
-                total_msg_count: 0,
-                type: 'D',
-                display_name: teammate.username,
-                teammate_id: teammate.id,
-                status: UserStore.getStatus(teammate.id)
-            };
-
-            Client.createDirectChannel(
-                channel,
-                teammate.id,
-                (data) => {
-                    this.setState({loadingDMChannel: -1});
-
-                    AsyncClient.getChannel(data.id);
-                    Utils.switchChannel(data);
-
-                    this.handleHide();
-                },
-                () => {
-                    this.setState({loadingDMChannel: -1});
-                    window.location.href = TeamStore.getCurrentTeamUrl() + '/channels/' + channelName;
-                }
-            );
-        }
+        this.setState({loadingDMChannel: teammate.id});
+        Utils.openDirectChannelToUser(
+            teammate,
+            (channel) => {
+                Utils.switchChannel(channel);
+                this.setState({loadingDMChannel: -1});
+                this.handleHide();
+            },
+            () => {
+                this.setState({loadingDMChannel: -1});
+            }
+        );
     }
 
     handleUserChange() {

web/react/components/popover_list_members.jsx

@@ -7,12 +7,6 @@ var Overlay = ReactBootstrap.Overlay;
 const Utils = require('../utils/utils.jsx');
 
 const ChannelStore = require('../stores/channel_store.jsx');
-const AsyncClient = require('../utils/async_client.jsx');
-const PreferenceStore = require('../stores/preference_store.jsx');
-const Client = require('../utils/client.jsx');
-const TeamStore = require('../stores/team_store.jsx');
-
-const Constants = require('../utils/constants.jsx');
 
 export default class PopoverListMembers extends React.Component {
     constructor(props) {
@@ -51,41 +45,18 @@ export default class PopoverListMembers extends React.Component {
     handleShowDirectChannel(teammate, e) {
         e.preventDefault();
 
-        const channelName = Utils.getDirectChannelName(UserStore.getCurrentId(), teammate.id);
-        let channel = ChannelStore.getByName(channelName);
-
-        const preference = PreferenceStore.setPreference(Constants.Preferences.CATEGORY_DIRECT_CHANNEL_SHOW, teammate.id, 'true');
-        AsyncClient.savePreferences([preference]);
-
-        if (channel) {
-            Utils.switchChannel(channel);
-            this.closePopover();
-        } else {
-            channel = {
-                name: channelName,
-                last_post_at: 0,
-                total_msg_count: 0,
-                type: 'D',
-                display_name: teammate.username,
-                teammate_id: teammate.id,
-                status: UserStore.getStatus(teammate.id)
-            };
-
-            Client.createDirectChannel(
-                channel,
-                teammate.id,
-                (data) => {
-                    AsyncClient.getChannel(data.id);
-                    Utils.switchChannel(data);
-
-                    this.closePopover();
-                },
-                () => {
-                    window.location.href = TeamStore.getCurrentTeamUrl() + '/channels/' + channelName;
+        Utils.openDirectChannelToUser(
+            teammate,
+            (channel, channelAlreadyExisted) => {
+                Utils.switchChannel(channel);
+                if (channelAlreadyExisted) {
                     this.closePopover();
                 }
-            );
-        }
+            },
+            () => {
+                this.closePopover();
+            }
+        );
     }
 
     closePopover() {

web/react/utils/utils.jsx

@@ -8,6 +8,7 @@ var PreferenceStore = require('../stores/preference_store.jsx');
 var TeamStore = require('../stores/team_store.jsx');
 var Constants = require('../utils/constants.jsx');
 var ActionTypes = Constants.ActionTypes;
+var Client = require('./client.jsx');
 var AsyncClient = require('./async_client.jsx');
 var client = require('./client.jsx');
 var Autolinker = require('autolinker');
@@ -1009,3 +1010,44 @@ export function windowWidth() {
 export function windowHeight() {
     return $(window).height();
 }
+
+export function openDirectChannelToUser(user, successCb, errorCb) {
+    const channelName = this.getDirectChannelName(UserStore.getCurrentId(), user.id);
+    let channel = ChannelStore.getByName(channelName);
+
+    const preference = PreferenceStore.setPreference(Constants.Preferences.CATEGORY_DIRECT_CHANNEL_SHOW, user.id, 'true');
+    AsyncClient.savePreferences([preference]);
+
+    if (channel) {
+        if ($.isFunction(successCb)) {
+            successCb(channel, true);
+        }
+    } else {
+        channel = {
+            name: channelName,
+            last_post_at: 0,
+            total_msg_count: 0,
+            type: 'D',
+            display_name: user.username,
+            teammate_id: user.id,
+            status: UserStore.getStatus(user.id)
+        };
+
+        Client.createDirectChannel(
+            channel,
+            user.id,
+            (data) => {
+                AsyncClient.getChannel(data.id);
+                if ($.isFunction(successCb)) {
+                    successCb(data, false);
+                }
+            },
+            () => {
+                window.location.href = TeamStore.getCurrentTeamUrl() + '/channels/' + channelName;
+                if ($.isFunction(errorCb)) {
+                    errorCb();
+                }
+            }
+        );
+    }
+}