misc: remove dead code 🔥🔥🔥 (#2844)

- old toolbox actions
- chat command processor
- room subject handling

modules/UI/UI.js

@@ -444,12 +444,6 @@ UI.addRemoteStream = track => VideoLayout.onRemoteStreamAdded(track);
  */
 UI.removeRemoteStream = track => VideoLayout.onRemoteStreamRemoved(track);
 
-/**
- * Update chat subject.
- * @param {string} subject new chat subject
- */
-UI.setSubject = subject => Chat.setSubject(subject);
-
 /**
  * Setup and show Etherpad.
  * @param {string} name etherpad id

modules/UI/side_pannels/chat/Chat.js

@@ -1,7 +1,6 @@
 /* global APP, $ */
 
-import { processReplacements, linkify } from './Replacement';
-import CommandsProcessor from './Commands';
+import { processReplacements } from './Replacement';
 import VideoLayout from '../../videolayout/VideoLayout';
 
 import UIUtil from '../../util/UIUtil';
@@ -12,8 +11,7 @@ import { smileys } from './smileys';
 import { addMessage, markAllRead } from '../../../../react/features/chat';
 import {
     dockToolbox,
-    getToolboxHeight,
-    setSubject
+    getToolboxHeight
 } from '../../../../react/features/toolbox';
 
 let unreadMessages = 0;
@@ -235,15 +233,10 @@ const Chat = {
 
                 usermsg.val('').trigger('autosize.resize');
                 this.focus();// eslint-disable-line no-invalid-this
-                const command = new CommandsProcessor(value, eventEmitter);
 
-                if (command.isCommand()) {
-                    command.processCommand();
-                } else {
-                    const message = UIUtil.escapeHtml(value);
+                const message = UIUtil.escapeHtml(value);
 
-                    eventEmitter.emit(UIEvents.MESSAGE_CREATED, message);
-                }
+                eventEmitter.emit(UIEvents.MESSAGE_CREATED, message);
             }
         });
 
@@ -351,21 +344,6 @@ const Chat = {
             { scrollTop: $('#chatconversation')[0].scrollHeight }, 1000);
     },
 
-    /**
-     * Sets the subject to the UI
-     * @param subject the subject
-     */
-    setSubject(subject) {
-        if (subject) {
-            // eslint-disable-next-line no-param-reassign
-            subject = subject.trim();
-        }
-
-        const html = linkify(UIUtil.escapeHtml(subject));
-
-        APP.store.dispatch(setSubject(html));
-    },
-
     /**
      * Sets the chat conversation mode.
      * Conversation mode is the normal chat mode, non conversation mode is

modules/UI/side_pannels/chat/Commands.js

@@ -1,94 +0,0 @@
-import UIUtil from '../../util/UIUtil';
-import UIEvents from '../../../../service/UI/UIEvents';
-
-/**
- * List with supported commands. The keys are the names of the commands and
- * the value is the function that processes the message.
- * @type {{String: function}}
- */
-const commands = {
-    'topic': processTopic
-};
-
-/**
- * Extracts the command from the message.
- * @param message the received message
- * @returns {string} the command
- */
-function getCommand(message) {
-    if (message) {
-        for (const command in commands) {
-            if (message.indexOf(`/${command}`) === 0) {
-                return command;
-            }
-        }
-    }
-
-    return '';
-}
-
-/**
- * Processes the data for topic command.
- * @param commandArguments the arguments of the topic command.
- */
-function processTopic(commandArguments, emitter) {
-    const topic = UIUtil.escapeHtml(commandArguments);
-
-    emitter.emit(UIEvents.SUBJECT_CHANGED, topic);
-}
-
-/**
- * Constructs a new CommandProccessor instance from a message that
- * handles commands received via chat messages.
- * @param message the message
- * @constructor
- */
-function CommandsProcessor(message, emitter) {
-    const command = getCommand(message);
-
-    this.emitter = emitter;
-
-    /**
-     * Returns the name of the command.
-     * @returns {String} the command
-     */
-    this.getCommand = function() {
-        return command;
-    };
-
-
-    const messageArgument = message.substr(command.length + 2);
-
-    /**
-     * Returns the arguments of the command.
-     * @returns {string}
-     */
-    this.getArgument = function() {
-        return messageArgument;
-    };
-}
-
-/**
- * Checks whether this instance is valid command or not.
- * @returns {boolean}
- */
-CommandsProcessor.prototype.isCommand = function() {
-    if (this.getCommand()) {
-        return true;
-    }
-
-    return false;
-};
-
-/**
- * Processes the command.
- */
-CommandsProcessor.prototype.processCommand = function() {
-    if (!this.isCommand()) {
-        return;
-    }
-
-    commands[this.getCommand()](this.getArgument(), this.emitter);
-};
-
-export default CommandsProcessor;